Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995, |
3 | 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, | |
76b6f707 | 4 | 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
284f4730 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
284f4730 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
284f4730 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
284f4730 | 20 | |
18160b98 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <signal.h> |
284f4730 | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
9628b887 | 25 | #include "lisp.h" |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
428a555e | 28 | #include "frame.h" |
284f4730 JB |
29 | #include "termhooks.h" |
30 | #include "macros.h" | |
02639609 | 31 | #include "keyboard.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
8b461910 | 35 | #include "character.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.h" |
bdb7aa47 | 40 | #include "keymap.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
8a9f5d3c GM |
43 | #include "systime.h" |
44 | #include "atimer.h" | |
284f4730 JB |
45 | #include <setjmp.h> |
46 | #include <errno.h> | |
47 | ||
aa477689 JD |
48 | #ifdef HAVE_GTK_AND_PTHREAD |
49 | #include <pthread.h> | |
50 | #endif | |
80e4aa30 RS |
51 | #ifdef MSDOS |
52 | #include "msdos.h" | |
53 | #include <time.h> | |
54 | #else /* not MSDOS */ | |
284f4730 | 55 | #include <sys/ioctl.h> |
80e4aa30 | 56 | #endif /* not MSDOS */ |
284f4730 | 57 | |
52baf19e | 58 | #include "syssignal.h" |
52baf19e | 59 | |
03cee6ae GM |
60 | #include <sys/types.h> |
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
64 | ||
e31d908f DN |
65 | #ifdef HAVE_FCNTL_H |
66 | #include <fcntl.h> | |
67 | #endif | |
68 | ||
c5e3b6c5 RS |
69 | /* This is to get the definitions of the XK_ symbols. */ |
70 | #ifdef HAVE_X_WINDOWS | |
71 | #include "xterm.h" | |
72 | #endif | |
73 | ||
e98a93eb GV |
74 | #ifdef HAVE_NTGUI |
75 | #include "w32term.h" | |
76 | #endif /* HAVE_NTGUI */ | |
77 | ||
edfda783 AR |
78 | #ifdef HAVE_NS |
79 | #include "nsterm.h" | |
edfda783 AR |
80 | #endif |
81 | ||
02639609 | 82 | #ifndef USE_CRT_DLL |
52baf19e | 83 | extern int errno; |
02639609 | 84 | #endif |
52baf19e | 85 | |
9ac0d9e0 JB |
86 | /* Variables for blockinput.h: */ |
87 | ||
88 | /* Non-zero if interrupt input is blocked right now. */ | |
cf2db145 | 89 | volatile int interrupt_input_blocked; |
9ac0d9e0 JB |
90 | |
91 | /* Nonzero means an input interrupt has arrived | |
92 | during the current critical section. */ | |
63927c41 | 93 | int interrupt_input_pending; |
9ac0d9e0 | 94 | |
ceb18827 CY |
95 | /* This var should be (interrupt_input_pending || pending_atimers). |
96 | The QUIT macro checks this instead of interrupt_input_pending and | |
97 | pending_atimers separately, to reduce code size. So, any code that | |
98 | changes interrupt_input_pending or pending_atimers should update | |
99 | this too. */ | |
07a1e794 | 100 | #ifdef SYNC_INPUT |
ceb18827 | 101 | int pending_signals; |
07a1e794 | 102 | #endif |
ceb18827 | 103 | |
de11c1ea | 104 | #define KBD_BUFFER_SIZE 4096 |
284f4730 | 105 | |
c5fdd383 KH |
106 | KBOARD *initial_kboard; |
107 | KBOARD *current_kboard; | |
108 | KBOARD *all_kboards; | |
1e8bd3da | 109 | int single_kboard; |
612b78ef | 110 | |
284f4730 | 111 | /* Non-nil disable property on a command means |
971e4c98 LT |
112 | do not execute it; call disabled-command-function's value instead. */ |
113 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 | 114 | |
0721f230 | 115 | #define NUM_RECENT_KEYS (300) |
284f4730 JB |
116 | int recent_keys_index; /* Index for storing next element into recent_keys */ |
117 | int total_keys; /* Total number of elements stored into recent_keys */ | |
0721f230 | 118 | Lisp_Object recent_keys; /* Vector holds the last NUM_RECENT_KEYS keystrokes */ |
284f4730 | 119 | |
6569cc8d JB |
120 | /* Vector holding the key sequence that invoked the current command. |
121 | It is reused for each command, and it may be longer than the current | |
122 | sequence; this_command_key_count indicates how many elements | |
123 | actually mean something. | |
124 | It's easier to staticpro a single Lisp_Object than an array. */ | |
125 | Lisp_Object this_command_keys; | |
126 | int this_command_key_count; | |
284f4730 | 127 | |
63020c46 RS |
128 | /* 1 after calling Freset_this_command_lengths. |
129 | Usually it is 0. */ | |
130 | int this_command_key_count_reset; | |
131 | ||
7d18f9ae RS |
132 | /* This vector is used as a buffer to record the events that were actually read |
133 | by read_key_sequence. */ | |
134 | Lisp_Object raw_keybuf; | |
135 | int raw_keybuf_count; | |
136 | ||
025ae953 CY |
137 | /* Non-nil if the present key sequence was obtained by shift translation. */ |
138 | Lisp_Object Vthis_command_keys_shift_translated; | |
139 | ||
7d18f9ae | 140 | #define GROW_RAW_KEYBUF \ |
7189cad8 | 141 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
6bf377e2 | 142 | raw_keybuf = larger_vector (raw_keybuf, raw_keybuf_count * 2, Qnil) \ |
7d18f9ae | 143 | |
6321824f RS |
144 | /* Number of elements of this_command_keys |
145 | that precede this key sequence. */ | |
146 | int this_single_command_key_start; | |
147 | ||
71918b75 RS |
148 | /* Record values of this_command_key_count and echo_length () |
149 | before this command was read. */ | |
150 | static int before_command_key_count; | |
151 | static int before_command_echo_length; | |
71918b75 | 152 | |
284f4730 JB |
153 | extern int minbuf_level; |
154 | ||
a59b172a RS |
155 | extern int message_enable_multibyte; |
156 | ||
7ee32cda GM |
157 | /* If non-nil, the function that implements the display of help. |
158 | It's called with one argument, the help string to display. */ | |
159 | ||
160 | Lisp_Object Vshow_help_function; | |
161 | ||
284f4730 | 162 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 163 | |
284f4730 JB |
164 | static int menu_prompting; |
165 | ||
166 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 167 | |
284f4730 JB |
168 | static Lisp_Object menu_prompt_more_char; |
169 | ||
170 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 171 | |
284f4730 JB |
172 | static jmp_buf getcjmp; |
173 | ||
174 | /* True while doing kbd input. */ | |
175 | int waiting_for_input; | |
176 | ||
177 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 178 | |
c843d6c6 | 179 | int echoing; |
284f4730 | 180 | |
985f9f66 GM |
181 | /* Non-null means we can start echoing at the next input pause even |
182 | though there is something in the echo area. */ | |
183 | ||
184 | static struct kboard *ok_to_echo_at_next_pause; | |
185 | ||
59a84f8e GM |
186 | /* The kboard last echoing, or null for none. Reset to 0 in |
187 | cancel_echoing. If non-null, and a current echo area message | |
188 | exists, and echo_message_buffer is eq to the current message | |
189 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 190 | |
f49aedfd | 191 | struct kboard *echo_kboard; |
1fc93d49 | 192 | |
59a84f8e GM |
193 | /* The buffer used for echoing. Set in echo_now, reset in |
194 | cancel_echoing. */ | |
195 | ||
c843d6c6 | 196 | Lisp_Object echo_message_buffer; |
59a84f8e | 197 | |
03361bcc RS |
198 | /* Nonzero means disregard local maps for the menu bar. */ |
199 | static int inhibit_local_menu_bar_menus; | |
200 | ||
80e4aa30 | 201 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
202 | int immediate_quit; |
203 | ||
04d8c47d RS |
204 | /* The user's hook function for outputting an error message. */ |
205 | Lisp_Object Vcommand_error_function; | |
206 | ||
fa90970d RS |
207 | /* The user's ERASE setting. */ |
208 | Lisp_Object Vtty_erase_char; | |
209 | ||
284f4730 | 210 | /* Character to recognize as the help char. */ |
7e85b935 | 211 | Lisp_Object Vhelp_char; |
284f4730 | 212 | |
ecb7cb34 KH |
213 | /* List of other event types to recognize as meaning "help". */ |
214 | Lisp_Object Vhelp_event_list; | |
215 | ||
284f4730 JB |
216 | /* Form to execute when help char is typed. */ |
217 | Lisp_Object Vhelp_form; | |
218 | ||
7e85b935 RS |
219 | /* Command to run when the help character follows a prefix key. */ |
220 | Lisp_Object Vprefix_help_command; | |
221 | ||
9f9c0e27 RS |
222 | /* List of items that should move to the end of the menu bar. */ |
223 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 224 | |
6526ab49 RS |
225 | /* Non-nil means show the equivalent key-binding for |
226 | any M-x command that has one. | |
227 | The value can be a length of time to show the message for. | |
228 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
229 | Lisp_Object Vsuggest_key_bindings; | |
230 | ||
00392ce6 MB |
231 | /* How long to display an echo-area message when the minibuffer is active. |
232 | If the value is not a number, such messages don't time out. */ | |
233 | Lisp_Object Vminibuffer_message_timeout; | |
234 | ||
284f4730 JB |
235 | /* Character that causes a quit. Normally C-g. |
236 | ||
237 | If we are running on an ordinary terminal, this must be an ordinary | |
238 | ASCII char, since we want to make it our interrupt character. | |
239 | ||
240 | If we are not running on an ordinary terminal, it still needs to be | |
241 | an ordinary ASCII char. This character needs to be recognized in | |
242 | the input interrupt handler. At this point, the keystroke is | |
243 | represented as a struct input_event, while the desired quit | |
244 | character is specified as a lispy event. The mapping from struct | |
245 | input_events to lispy events cannot run in an interrupt handler, | |
246 | and the reverse mapping is difficult for anything but ASCII | |
247 | keystrokes. | |
248 | ||
249 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
250 | ASCII character. */ | |
251 | int quit_char; | |
252 | ||
253 | extern Lisp_Object current_global_map; | |
254 | extern int minibuf_level; | |
255 | ||
9dd3131c RS |
256 | /* If non-nil, this is a map that overrides all other local maps. */ |
257 | Lisp_Object Voverriding_local_map; | |
258 | ||
d0a49716 RS |
259 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
260 | Lisp_Object Voverriding_local_map_menu_flag; | |
261 | ||
7f07d5ca RS |
262 | /* Keymap that defines special misc events that should |
263 | be processed immediately at a low level. */ | |
264 | Lisp_Object Vspecial_event_map; | |
265 | ||
284f4730 JB |
266 | /* Current depth in recursive edits. */ |
267 | int command_loop_level; | |
268 | ||
269 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 270 | EMACS_INT num_input_keys; |
284f4730 | 271 | |
4b09796d GM |
272 | /* Last input event read as a command. */ |
273 | Lisp_Object last_command_event; | |
284f4730 | 274 | |
7d6de002 RS |
275 | /* Last input character read as a command, not counting menus |
276 | reached by the mouse. */ | |
277 | Lisp_Object last_nonmenu_event; | |
278 | ||
4b09796d GM |
279 | /* Last input event read for any purpose. */ |
280 | Lisp_Object last_input_event; | |
284f4730 | 281 | |
dbc4e1c1 | 282 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 283 | Lisp_Object Vunread_command_events; |
284f4730 | 284 | |
7d18f9ae RS |
285 | /* If not Qnil, a list of objects to be read as subsequent command input |
286 | including input method processing. */ | |
287 | Lisp_Object Vunread_input_method_events; | |
288 | ||
289 | /* If not Qnil, a list of objects to be read as subsequent command input | |
290 | but NOT including input method processing. */ | |
291 | Lisp_Object Vunread_post_input_method_events; | |
292 | ||
86e5706b | 293 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 294 | EMACS_INT unread_command_char; |
86e5706b | 295 | |
cd21b839 JB |
296 | /* If not Qnil, this is a switch-frame event which we decided to put |
297 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 298 | next command input, after any unread_command_events. |
8f805655 JB |
299 | |
300 | read_key_sequence uses this to delay switch-frame events until the | |
301 | end of the key sequence; Fread_char uses it to put off switch-frame | |
302 | events until a non-ASCII event is acceptable as input. */ | |
303 | Lisp_Object unread_switch_frame; | |
cd21b839 | 304 | |
9fa4395d | 305 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 306 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 307 | |
284f4730 JB |
308 | /* Char to use as prefix when a meta character is typed in. |
309 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
310 | ||
311 | Lisp_Object meta_prefix_char; | |
312 | ||
313 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
314 | static int last_non_minibuf_size; | |
315 | ||
06ef7355 | 316 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
317 | static Lisp_Object Vauto_save_timeout; |
318 | ||
319 | /* Total number of times read_char has returned. */ | |
4abfba1f | 320 | int num_input_events; |
284f4730 | 321 | |
51172b6d | 322 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 323 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 324 | |
284f4730 JB |
325 | /* Auto-save automatically when this many characters have been typed |
326 | since the last time. */ | |
327 | ||
31ade731 | 328 | static EMACS_INT auto_save_interval; |
284f4730 | 329 | |
c43b1734 | 330 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
331 | |
332 | int last_auto_save; | |
333 | ||
284f4730 | 334 | /* The command being executed by the command loop. |
6c7178b9 KH |
335 | Commands may set this, and the value set will be copied into |
336 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
337 | Lisp_Object Vthis_command; |
338 | ||
339 | /* This is like Vthis_command, except that commands never set it. */ | |
340 | Lisp_Object real_this_command; | |
284f4730 | 341 | |
8b9940e6 KS |
342 | /* If the lookup of the command returns a binding, the original |
343 | command is stored in this-original-command. It is nil otherwise. */ | |
344 | Lisp_Object Vthis_original_command; | |
345 | ||
bb0e1d19 | 346 | /* The value of point when the last command was started. */ |
b453f72e KH |
347 | int last_point_position; |
348 | ||
047688cb RS |
349 | /* The buffer that was current when the last command was started. */ |
350 | Lisp_Object last_point_position_buffer; | |
351 | ||
bb0e1d19 RS |
352 | /* The window that was selected when the last command was started. */ |
353 | Lisp_Object last_point_position_window; | |
354 | ||
4c52b668 KH |
355 | /* The frame in which the last input event occurred, or Qmacro if the |
356 | last event came from a macro. We use this to determine when to | |
357 | generate switch-frame events. This may be cleared by functions | |
358 | like Fselect_frame, to make sure that a switch-frame event is | |
359 | generated by the next character. */ | |
360 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
361 | |
362 | /* A user-visible version of the above, intended to allow users to | |
363 | figure out where the last event came from, if the event doesn't | |
364 | carry that information itself (i.e. if it was a character). */ | |
365 | Lisp_Object Vlast_event_frame; | |
366 | ||
1113d9db JB |
367 | /* The timestamp of the last input event we received from the X server. |
368 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
369 | unsigned long last_event_timestamp; |
370 | ||
371 | Lisp_Object Qself_insert_command; | |
372 | Lisp_Object Qforward_char; | |
373 | Lisp_Object Qbackward_char; | |
e58aa385 | 374 | Lisp_Object Qundefined; |
d925fb39 | 375 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
376 | |
377 | /* read_key_sequence stores here the command definition of the | |
378 | key sequence that it reads. */ | |
379 | Lisp_Object read_key_sequence_cmd; | |
380 | ||
39aab679 DL |
381 | /* Echo unfinished commands after this many seconds of pause. */ |
382 | Lisp_Object Vecho_keystrokes; | |
383 | ||
284f4730 JB |
384 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
385 | Lisp_Object Vtop_level; | |
386 | ||
7d18f9ae RS |
387 | /* If non-nil, this implements the current input method. */ |
388 | Lisp_Object Vinput_method_function; | |
389 | Lisp_Object Qinput_method_function; | |
390 | ||
d5eecefb RS |
391 | /* When we call Vinput_method_function, |
392 | this holds the echo area message that was just erased. */ | |
393 | Lisp_Object Vinput_method_previous_message; | |
394 | ||
86e5706b RS |
395 | /* Non-nil means deactivate the mark at end of this command. */ |
396 | Lisp_Object Vdeactivate_mark; | |
5c4cc82a | 397 | Lisp_Object Qdeactivate_mark; |
86e5706b | 398 | |
48e416d4 RS |
399 | /* Menu bar specified in Lucid Emacs fashion. */ |
400 | ||
401 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
402 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
403 | ||
cf24f894 | 404 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 405 | |
86e5706b | 406 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
407 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
408 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 409 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 410 | |
ac09dc1e KL |
411 | /* Parent keymap of terminal-local function-key-map instances. */ |
412 | Lisp_Object Vfunction_key_map; | |
413 | ||
4f4a84ec | 414 | /* Keymap of key translations that can override keymaps. */ |
ac09dc1e | 415 | Lisp_Object Vkey_translation_map; |
4ea81208 | 416 | |
8a792f3a RS |
417 | /* List of deferred actions to be performed at a later time. |
418 | The precise format isn't relevant here; we just check whether it is nil. */ | |
419 | Lisp_Object Vdeferred_action_list; | |
420 | ||
421 | /* Function to call to handle deferred actions, when there are any. */ | |
422 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 423 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 424 | |
d5eecefb RS |
425 | Lisp_Object Qinput_method_exit_on_first_char; |
426 | Lisp_Object Qinput_method_use_echo_area; | |
427 | ||
284f4730 JB |
428 | /* File in which we write all commands we read. */ |
429 | FILE *dribble; | |
430 | ||
431 | /* Nonzero if input is available. */ | |
432 | int input_pending; | |
433 | ||
284f4730 JB |
434 | extern char *pending_malloc_warning; |
435 | ||
beecf6a1 | 436 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 437 | |
beecf6a1 KH |
438 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
439 | ||
beecf6a1 KH |
440 | /* Pointer to next available character in kbd_buffer. |
441 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 442 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
443 | next available char is in kbd_buffer[0]. */ |
444 | static struct input_event *kbd_fetch_ptr; | |
445 | ||
446 | /* Pointer to next place to store character in kbd_buffer. This | |
447 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
448 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 449 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
450 | |
451 | /* The above pair of variables forms a "queue empty" flag. When we | |
452 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
453 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
e0f24100 | 454 | there is input available if the two pointers are not equal. |
beecf6a1 KH |
455 | |
456 | Why not just have a flag set and cleared by the enqueuing and | |
457 | dequeuing functions? Such a flag could be screwed up by interrupts | |
458 | at inopportune times. */ | |
459 | ||
f3253854 | 460 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
461 | mouse moves, and motion events will appear in the input stream. |
462 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 463 | Lisp_Object do_mouse_tracking; |
284f4730 | 464 | |
284f4730 JB |
465 | /* Symbols to head events. */ |
466 | Lisp_Object Qmouse_movement; | |
3c370943 | 467 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 468 | Lisp_Object Qswitch_frame; |
bbdc2092 | 469 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
470 | Lisp_Object Qiconify_frame; |
471 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 472 | Lisp_Object Qselect_window; |
7ee32cda | 473 | Lisp_Object Qhelp_echo; |
cd21b839 | 474 | |
224fc3d1 CY |
475 | extern Lisp_Object Qremap; |
476 | ||
ae372f41 | 477 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
478 | Lisp_Object Qmouse_fixup_help_message; |
479 | #endif | |
480 | ||
284f4730 JB |
481 | /* Symbols to denote kinds of events. */ |
482 | Lisp_Object Qfunction_key; | |
483 | Lisp_Object Qmouse_click; | |
9e2a2647 | 484 | #if defined (WINDOWSNT) |
1161d367 | 485 | Lisp_Object Qlanguage_change; |
07de30b9 | 486 | #endif |
a24dc617 | 487 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 | 488 | Lisp_Object Qsave_session; |
033b73e2 MA |
489 | #ifdef HAVE_DBUS |
490 | Lisp_Object Qdbus_event; | |
491 | #endif | |
284f4730 | 492 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
493 | |
494 | /* Properties of event headers. */ | |
495 | Lisp_Object Qevent_kind; | |
88cb0656 | 496 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 497 | |
e8886a1d | 498 | /* menu item parts */ |
598a9fa7 | 499 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
500 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
501 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d | 502 | extern Lisp_Object Qmenu_item; |
598a9fa7 | 503 | |
0a7f1fc0 JB |
504 | /* An event header symbol HEAD may have a property named |
505 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
506 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
507 | mask of modifiers applied to it. If present, this is used to help | |
508 | speed up parse_modifiers. */ | |
509 | Lisp_Object Qevent_symbol_element_mask; | |
510 | ||
511 | /* An unmodified event header BASE may have a property named | |
512 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
513 | modified versions of BASE. If present, this helps speed up | |
514 | apply_modifiers. */ | |
515 | Lisp_Object Qmodifier_cache; | |
516 | ||
5ec75a55 | 517 | /* Symbols to use for parts of windows. */ |
284f4730 | 518 | Lisp_Object Qmode_line; |
e5d77022 | 519 | Lisp_Object Qvertical_line; |
3c370943 | 520 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 521 | Lisp_Object Qmenu_bar; |
7d60ad8a | 522 | extern Lisp_Object Qleft_margin, Qright_margin; |
6b61353c KH |
523 | extern Lisp_Object Qleft_fringe, Qright_fringe; |
524 | extern Lisp_Object QCmap; | |
5ec75a55 | 525 | |
f4255cd1 JB |
526 | Lisp_Object recursive_edit_unwind (), command_loop (); |
527 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 528 | Lisp_Object Qextended_command_history; |
c04cbc3b | 529 | EMACS_TIME timer_check (); |
284f4730 | 530 | |
a0acc6c7 | 531 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 532 | |
2c834fb3 KH |
533 | extern char *x_get_keysym_name (); |
534 | ||
8eb4d8ef | 535 | static void record_menu_key (); |
22b94eeb | 536 | static int echo_length (); |
8eb4d8ef | 537 | |
f4eef8b4 RS |
538 | Lisp_Object Qpolling_period; |
539 | ||
d9d4c147 | 540 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
541 | Lisp_Object Vtimer_list; |
542 | ||
d9d4c147 KH |
543 | /* List of idle time timers. Appears in order of next scheduled event. */ |
544 | Lisp_Object Vtimer_idle_list; | |
545 | ||
87dd9b9b RS |
546 | /* Incremented whenever a timer is run. */ |
547 | int timers_run; | |
548 | ||
a9f16aa9 KH |
549 | extern Lisp_Object Vprint_level, Vprint_length; |
550 | ||
ffd56f97 JB |
551 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
552 | happens. */ | |
553 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
554 | |
555 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
556 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
557 | int interrupt_input; | |
558 | ||
559 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
560 | int interrupts_deferred; | |
561 | ||
284f4730 JB |
562 | /* Allow m- file to inhibit use of FIONREAD. */ |
563 | #ifdef BROKEN_FIONREAD | |
564 | #undef FIONREAD | |
565 | #endif | |
566 | ||
567 | /* We are unable to use interrupts if FIONREAD is not available, | |
568 | so flush SIGIO so we won't try. */ | |
fc7a70cc | 569 | #if !defined (FIONREAD) |
284f4730 JB |
570 | #ifdef SIGIO |
571 | #undef SIGIO | |
572 | #endif | |
573 | #endif | |
574 | ||
e98a93eb | 575 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 576 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 577 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
578 | #define POLL_FOR_INPUT |
579 | #endif | |
adf5cb9c KH |
580 | |
581 | /* After a command is executed, if point is moved into a region that | |
582 | has specific properties (e.g. composition, display), we adjust | |
583 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 584 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 585 | variable is set to nil before reading a command. */ |
da8f7368 | 586 | |
adf5cb9c KH |
587 | Lisp_Object Vdisable_point_adjustment; |
588 | ||
589 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 590 | |
adf5cb9c KH |
591 | Lisp_Object Vglobal_disable_point_adjustment; |
592 | ||
fdbb67fe GM |
593 | /* The time when Emacs started being idle. */ |
594 | ||
595 | static EMACS_TIME timer_idleness_start_time; | |
596 | ||
3021d3a9 RS |
597 | /* After Emacs stops being idle, this saves the last value |
598 | of timer_idleness_start_time from when it was idle. */ | |
599 | ||
600 | static EMACS_TIME timer_last_idleness_start_time; | |
601 | ||
9d56e0da EZ |
602 | /* If non-nil, events produced by disabled menu items and tool-bar |
603 | buttons are not ignored. Help functions bind this to allow help on | |
604 | those items and buttons. */ | |
605 | Lisp_Object Venable_disabled_menus_and_buttons; | |
606 | ||
284f4730 JB |
607 | \f |
608 | /* Global variable declarations. */ | |
609 | ||
a2d5fca0 JD |
610 | /* Flags for readable_events. */ |
611 | #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0) | |
612 | #define READABLE_EVENTS_FILTER_EVENTS (1 << 1) | |
613 | #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2) | |
614 | ||
284f4730 JB |
615 | /* Function for init_keyboard to call with no args (if nonzero). */ |
616 | void (*keyboard_init_hook) (); | |
617 | ||
0bbfdc25 GM |
618 | static int read_avail_input P_ ((int)); |
619 | static void get_input_pending P_ ((int *, int)); | |
620 | static int readable_events P_ ((int)); | |
621 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
622 | Lisp_Object, int *)); | |
8150596a | 623 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
624 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
625 | Lisp_Object *)); | |
626 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
ae372f41 | 627 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
0bbfdc25 GM |
628 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
629 | enum scroll_bar_part, | |
630 | Lisp_Object, Lisp_Object, | |
631 | unsigned long)); | |
514354e9 | 632 | #endif |
0bbfdc25 GM |
633 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
634 | Lisp_Object, char **, | |
635 | Lisp_Object *, unsigned)); | |
636 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
0bbfdc25 | 637 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 638 | static void save_getcjmp (); |
0bbfdc25 | 639 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 640 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 641 | static void clear_event P_ ((struct input_event *)); |
9148bda2 | 642 | static Lisp_Object restore_kboard_configuration P_ ((Lisp_Object)); |
5598c32e | 643 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
114a8b8c | 644 | static void handle_interrupt P_ ((void)); |
5c12e63f KS |
645 | static void timer_start_idle P_ ((void)); |
646 | static void timer_stop_idle P_ ((void)); | |
647 | static void timer_resume_idle P_ ((void)); | |
23479b40 YM |
648 | static SIGTYPE handle_user_signal P_ ((int)); |
649 | static char *find_user_signal_name P_ ((int)); | |
650 | static int store_user_signal_events P_ ((void)); | |
284f4730 | 651 | |
8026024c KH |
652 | /* Nonzero means don't try to suspend even if the operating system seems |
653 | to support it. */ | |
654 | static int cannot_suspend; | |
12679e05 CY |
655 | |
656 | extern Lisp_Object Qidentity, Qonly; | |
29204e13 | 657 | \f |
284f4730 JB |
658 | /* Install the string STR as the beginning of the string of echoing, |
659 | so that it serves as a prompt for the next character. | |
660 | Also start echoing. */ | |
661 | ||
dfcf069d | 662 | void |
284f4730 | 663 | echo_prompt (str) |
a4ef85ee | 664 | Lisp_Object str; |
284f4730 | 665 | { |
678e9d18 | 666 | current_kboard->echo_string = str; |
0d121f7c | 667 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 668 | echo_now (); |
284f4730 JB |
669 | } |
670 | ||
df0f2ba1 | 671 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
672 | C can be a character, which is printed prettily ("M-C-x" and all that |
673 | jazz), or a symbol, whose name is printed. */ | |
674 | ||
dfcf069d | 675 | void |
284f4730 JB |
676 | echo_char (c) |
677 | Lisp_Object c; | |
678 | { | |
c5fdd383 | 679 | if (current_kboard->immediate_echo) |
284f4730 | 680 | { |
678e9d18 GM |
681 | int size = KEY_DESCRIPTION_SIZE + 100; |
682 | char *buffer = (char *) alloca (size); | |
683 | char *ptr = buffer; | |
684 | Lisp_Object echo_string; | |
284f4730 | 685 | |
0d121f7c | 686 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 687 | |
284f4730 | 688 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 689 | c = EVENT_HEAD (c); |
284f4730 | 690 | |
8c18cbfb | 691 | if (INTEGERP (c)) |
284f4730 | 692 | { |
678e9d18 | 693 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 694 | } |
8c18cbfb | 695 | else if (SYMBOLP (c)) |
284f4730 | 696 | { |
1b049b51 KR |
697 | Lisp_Object name = SYMBOL_NAME (c); |
698 | int nbytes = SBYTES (name); | |
c60ee5e7 | 699 | |
0d121f7c | 700 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
701 | { |
702 | int offset = ptr - buffer; | |
0d121f7c | 703 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
704 | buffer = (char *) alloca (size); |
705 | ptr = buffer + offset; | |
706 | } | |
707 | ||
1b049b51 KR |
708 | ptr += copy_text (SDATA (name), ptr, nbytes, |
709 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
710 | } |
711 | ||
0d121f7c | 712 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 713 | && help_char_p (c)) |
284f4730 | 714 | { |
678e9d18 GM |
715 | const char *text = " (Type ? for further options)"; |
716 | int len = strlen (text); | |
c60ee5e7 | 717 | |
678e9d18 GM |
718 | if (size - (ptr - buffer) < len) |
719 | { | |
720 | int offset = ptr - buffer; | |
721 | size += len; | |
722 | buffer = (char *) alloca (size); | |
723 | ptr = buffer + offset; | |
724 | } | |
725 | ||
726 | bcopy (text, ptr, len); | |
727 | ptr += len; | |
284f4730 JB |
728 | } |
729 | ||
0d121f7c GM |
730 | /* Replace a dash from echo_dash with a space, otherwise |
731 | add a space at the end as a separator between keys. */ | |
678e9d18 | 732 | if (STRINGP (echo_string) |
2ff4d3d9 | 733 | && SCHARS (echo_string) > 1) |
0d121f7c | 734 | { |
2ff4d3d9 RS |
735 | Lisp_Object last_char, prev_char, idx; |
736 | ||
737 | idx = make_number (SCHARS (echo_string) - 2); | |
738 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
739 | |
740 | idx = make_number (SCHARS (echo_string) - 1); | |
741 | last_char = Faref (echo_string, idx); | |
742 | ||
2ff4d3d9 RS |
743 | /* We test PREV_CHAR to make sure this isn't the echoing |
744 | of a minus-sign. */ | |
745 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
746 | Faset (echo_string, idx, make_number (' ')); |
747 | else | |
748 | echo_string = concat2 (echo_string, build_string (" ")); | |
749 | } | |
c3be81c7 RS |
750 | else if (STRINGP (echo_string)) |
751 | echo_string = concat2 (echo_string, build_string (" ")); | |
678e9d18 GM |
752 | |
753 | current_kboard->echo_string | |
754 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 755 | |
3dbd9ee4 | 756 | echo_now (); |
284f4730 JB |
757 | } |
758 | } | |
759 | ||
760 | /* Temporarily add a dash to the end of the echo string if it's not | |
761 | empty, so that it serves as a mini-prompt for the very next character. */ | |
762 | ||
dfcf069d | 763 | void |
284f4730 JB |
764 | echo_dash () |
765 | { | |
678e9d18 GM |
766 | /* Do nothing if not echoing at all. */ |
767 | if (NILP (current_kboard->echo_string)) | |
768 | return; | |
769 | ||
c5fdd383 | 770 | if (!current_kboard->immediate_echo |
0d121f7c | 771 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 772 | return; |
c60ee5e7 | 773 | |
7a80a6f6 | 774 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 775 | if (current_kboard->echo_after_prompt |
0d121f7c | 776 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 777 | return; |
c60ee5e7 | 778 | |
366511da MB |
779 | /* Do nothing if we have already put a dash at the end. */ |
780 | if (SCHARS (current_kboard->echo_string) > 1) | |
781 | { | |
c3be81c7 | 782 | Lisp_Object last_char, prev_char, idx; |
366511da | 783 | |
c3be81c7 RS |
784 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); |
785 | prev_char = Faref (current_kboard->echo_string, idx); | |
366511da | 786 | |
c3be81c7 RS |
787 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); |
788 | last_char = Faref (current_kboard->echo_string, idx); | |
366511da | 789 | |
c3be81c7 RS |
790 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') |
791 | return; | |
366511da MB |
792 | } |
793 | ||
284f4730 JB |
794 | /* Put a dash at the end of the buffer temporarily, |
795 | but make it go away when the next character is added. */ | |
678e9d18 GM |
796 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
797 | build_string ("-")); | |
3dbd9ee4 | 798 | echo_now (); |
284f4730 JB |
799 | } |
800 | ||
801 | /* Display the current echo string, and begin echoing if not already | |
802 | doing so. */ | |
803 | ||
07a59269 | 804 | void |
3dbd9ee4 | 805 | echo_now () |
284f4730 | 806 | { |
c5fdd383 | 807 | if (!current_kboard->immediate_echo) |
284f4730 JB |
808 | { |
809 | int i; | |
c5fdd383 | 810 | current_kboard->immediate_echo = 1; |
284f4730 JB |
811 | |
812 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
813 | { |
814 | Lisp_Object c; | |
22b94eeb RS |
815 | |
816 | /* Set before_command_echo_length to the value that would | |
817 | have been saved before the start of this subcommand in | |
818 | command_loop_1, if we had already been echoing then. */ | |
819 | if (i == this_single_command_key_start) | |
820 | before_command_echo_length = echo_length (); | |
821 | ||
d0a57728 RS |
822 | c = XVECTOR (this_command_keys)->contents[i]; |
823 | if (! (EVENT_HAS_PARAMETERS (c) | |
824 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
825 | echo_char (c); | |
826 | } | |
22b94eeb RS |
827 | |
828 | /* Set before_command_echo_length to the value that would | |
829 | have been saved before the start of this subcommand in | |
830 | command_loop_1, if we had already been echoing then. */ | |
831 | if (this_command_key_count == this_single_command_key_start) | |
832 | before_command_echo_length = echo_length (); | |
833 | ||
834 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
835 | echo_dash (); |
836 | } | |
837 | ||
838 | echoing = 1; | |
678e9d18 | 839 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 840 | SBYTES (current_kboard->echo_string), |
d5db4077 | 841 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
842 | echoing = 0; |
843 | ||
59a84f8e GM |
844 | /* Record in what buffer we echoed, and from which kboard. */ |
845 | echo_message_buffer = echo_area_buffer[0]; | |
846 | echo_kboard = current_kboard; | |
847 | ||
284f4730 JB |
848 | if (waiting_for_input && !NILP (Vquit_flag)) |
849 | quit_throw_to_read_char (); | |
850 | } | |
851 | ||
852 | /* Turn off echoing, for the start of a new command. */ | |
853 | ||
dfcf069d | 854 | void |
284f4730 JB |
855 | cancel_echoing () |
856 | { | |
c5fdd383 | 857 | current_kboard->immediate_echo = 0; |
c5fdd383 | 858 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 859 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
860 | ok_to_echo_at_next_pause = NULL; |
861 | echo_kboard = NULL; | |
862 | echo_message_buffer = Qnil; | |
284f4730 JB |
863 | } |
864 | ||
865 | /* Return the length of the current echo string. */ | |
866 | ||
867 | static int | |
868 | echo_length () | |
869 | { | |
678e9d18 | 870 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 871 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 872 | : 0); |
284f4730 JB |
873 | } |
874 | ||
875 | /* Truncate the current echo message to its first LEN chars. | |
876 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 877 | switches frames while entering a key sequence. */ |
284f4730 JB |
878 | |
879 | static void | |
678e9d18 GM |
880 | echo_truncate (nchars) |
881 | int nchars; | |
882 | { | |
883 | if (STRINGP (current_kboard->echo_string)) | |
884 | current_kboard->echo_string | |
885 | = Fsubstring (current_kboard->echo_string, | |
886 | make_number (0), make_number (nchars)); | |
887 | truncate_echo_area (nchars); | |
284f4730 JB |
888 | } |
889 | ||
890 | \f | |
891 | /* Functions for manipulating this_command_keys. */ | |
892 | static void | |
893 | add_command_key (key) | |
894 | Lisp_Object key; | |
895 | { | |
22b94eeb RS |
896 | #if 0 /* Not needed after we made Freset_this_command_lengths |
897 | do the job immediately. */ | |
71918b75 RS |
898 | /* If reset-this-command-length was called recently, obey it now. |
899 | See the doc string of that function for an explanation of why. */ | |
900 | if (before_command_restore_flag) | |
901 | { | |
902 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
903 | if (this_command_key_count < this_single_command_key_start) |
904 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
905 | echo_truncate (before_command_echo_length_1); |
906 | before_command_restore_flag = 0; | |
907 | } | |
22b94eeb | 908 | #endif |
71918b75 | 909 | |
f4e05d97 GM |
910 | if (this_command_key_count >= ASIZE (this_command_keys)) |
911 | this_command_keys = larger_vector (this_command_keys, | |
912 | 2 * ASIZE (this_command_keys), | |
913 | Qnil); | |
6569cc8d | 914 | |
b1ebcadb | 915 | ASET (this_command_keys, this_command_key_count, key); |
f4e05d97 | 916 | ++this_command_key_count; |
284f4730 | 917 | } |
f4e05d97 | 918 | |
284f4730 JB |
919 | \f |
920 | Lisp_Object | |
921 | recursive_edit_1 () | |
922 | { | |
aed13378 | 923 | int count = SPECPDL_INDEX (); |
284f4730 JB |
924 | Lisp_Object val; |
925 | ||
926 | if (command_loop_level > 0) | |
927 | { | |
928 | specbind (Qstandard_output, Qt); | |
929 | specbind (Qstandard_input, Qt); | |
930 | } | |
931 | ||
d148e14d | 932 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f | 933 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 934 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
935 | can take some time. Do not check for display_hourglass_p here, |
936 | because it could already be nil. */ | |
526a058f | 937 | cancel_hourglass (); |
84265027 GM |
938 | #endif |
939 | ||
980a2d69 GM |
940 | /* This function may have been called from a debugger called from |
941 | within redisplay, for instance by Edebugging a function called | |
942 | from fontification-functions. We want to allow redisplay in | |
943 | the debugging session. | |
944 | ||
945 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
946 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
947 | recursive edit, the original redisplay leading to the recursive | |
948 | edit will be unwound. The outcome should therefore be safe. */ | |
949 | specbind (Qinhibit_redisplay, Qnil); | |
950 | redisplaying_p = 0; | |
951 | ||
284f4730 JB |
952 | val = command_loop (); |
953 | if (EQ (val, Qt)) | |
954 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
955 | /* Handle throw from read_minibuf when using minibuffer |
956 | while it's active but we're in another window. */ | |
957 | if (STRINGP (val)) | |
43cae48c | 958 | xsignal1 (Qerror, val); |
284f4730 | 959 | |
cb5df6ae | 960 | return unbind_to (count, Qnil); |
284f4730 JB |
961 | } |
962 | ||
963 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 964 | |
07a59269 | 965 | void |
284f4730 JB |
966 | record_auto_save () |
967 | { | |
c43b1734 | 968 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 969 | } |
5846638c RS |
970 | |
971 | /* Make an auto save happen as soon as possible at command level. */ | |
972 | ||
dfcf069d | 973 | void |
5846638c RS |
974 | force_auto_save_soon () |
975 | { | |
976 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
977 | |
978 | record_asynch_buffer_change (); | |
5846638c | 979 | } |
284f4730 | 980 | \f |
284f4730 | 981 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
982 | doc: /* Invoke the editor command loop recursively. |
983 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
984 | that tells this function to return. | |
6e604a9b | 985 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 PJ |
986 | This function is called by the editor initialization to begin editing. */) |
987 | () | |
284f4730 | 988 | { |
aed13378 | 989 | int count = SPECPDL_INDEX (); |
9ce50b1e | 990 | Lisp_Object buffer; |
284f4730 | 991 | |
96edd5d4 KS |
992 | /* If we enter while input is blocked, don't lock up here. |
993 | This may happen through the debugger during redisplay. */ | |
994 | if (INPUT_BLOCKED_P) | |
995 | return Qnil; | |
996 | ||
284f4730 JB |
997 | command_loop_level++; |
998 | update_mode_lines = 1; | |
999 | ||
9ce50b1e GM |
1000 | if (command_loop_level |
1001 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1002 | buffer = Fcurrent_buffer (); | |
1003 | else | |
1004 | buffer = Qnil; | |
1005 | ||
1006 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1007 | like it is done in the splash screen display, we have to | |
1008 | make sure that we restore single_kboard as command_loop_1 | |
1009 | would have done if it were left normally. */ | |
b3e6f69c KL |
1010 | if (command_loop_level > 0) |
1011 | temporarily_switch_to_single_kboard (SELECTED_FRAME ()); | |
256c9c3a | 1012 | record_unwind_protect (recursive_edit_unwind, buffer); |
9ce50b1e | 1013 | |
284f4730 JB |
1014 | recursive_edit_1 (); |
1015 | return unbind_to (count, Qnil); | |
1016 | } | |
1017 | ||
1018 | Lisp_Object | |
256c9c3a KL |
1019 | recursive_edit_unwind (buffer) |
1020 | Lisp_Object buffer; | |
284f4730 | 1021 | { |
256c9c3a KL |
1022 | if (BUFFERP (buffer)) |
1023 | Fset_buffer (buffer); | |
c60ee5e7 | 1024 | |
284f4730 JB |
1025 | command_loop_level--; |
1026 | update_mode_lines = 1; | |
1027 | return Qnil; | |
1028 | } | |
9ce50b1e | 1029 | |
284f4730 | 1030 | \f |
b3e6f69c KL |
1031 | #if 0 /* These two functions are now replaced with |
1032 | temporarily_switch_to_single_kboard. */ | |
604ccd1d | 1033 | static void |
1e8bd3da | 1034 | any_kboard_state () |
604ccd1d | 1035 | { |
1e8bd3da RS |
1036 | #if 0 /* Theory: if there's anything in Vunread_command_events, |
1037 | it will right away be read by read_key_sequence, | |
1038 | and then if we do switch KBOARDS, it will go into the side | |
1039 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1040 | if (CONSP (Vunread_command_events)) |
4524b161 | 1041 | { |
c5fdd383 KH |
1042 | current_kboard->kbd_queue |
1043 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1044 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1045 | } |
604ccd1d | 1046 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1047 | #endif |
1048 | single_kboard = 0; | |
604ccd1d | 1049 | } |
1e8bd3da RS |
1050 | |
1051 | /* Switch to the single-kboard state, making current_kboard | |
1052 | the only KBOARD from which further input is accepted. */ | |
1053 | ||
1054 | void | |
1055 | single_kboard_state () | |
1056 | { | |
1e8bd3da | 1057 | single_kboard = 1; |
1e8bd3da | 1058 | } |
b3e6f69c | 1059 | #endif |
1e8bd3da | 1060 | |
0c1c1b93 RS |
1061 | /* If we're in single_kboard state for kboard KBOARD, |
1062 | get out of it. */ | |
1063 | ||
1064 | void | |
1065 | not_single_kboard_state (kboard) | |
1066 | KBOARD *kboard; | |
1067 | { | |
1068 | if (kboard == current_kboard) | |
1069 | single_kboard = 0; | |
1070 | } | |
1071 | ||
1e8bd3da RS |
1072 | /* Maintain a stack of kboards, so other parts of Emacs |
1073 | can switch temporarily to the kboard of a given frame | |
1074 | and then revert to the previous status. */ | |
1075 | ||
1076 | struct kboard_stack | |
1077 | { | |
1078 | KBOARD *kboard; | |
1079 | struct kboard_stack *next; | |
1080 | }; | |
1081 | ||
1082 | static struct kboard_stack *kboard_stack; | |
1083 | ||
1084 | void | |
256c9c3a KL |
1085 | push_kboard (k) |
1086 | struct kboard *k; | |
1e8bd3da RS |
1087 | { |
1088 | struct kboard_stack *p | |
1089 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1090 | ||
1091 | p->next = kboard_stack; | |
1092 | p->kboard = current_kboard; | |
1093 | kboard_stack = p; | |
1094 | ||
256c9c3a | 1095 | current_kboard = k; |
1e8bd3da RS |
1096 | } |
1097 | ||
1098 | void | |
256c9c3a | 1099 | pop_kboard () |
1e8bd3da | 1100 | { |
6ed8eeff | 1101 | struct terminal *t; |
1e8bd3da | 1102 | struct kboard_stack *p = kboard_stack; |
24f9525b | 1103 | int found = 0; |
6ed8eeff | 1104 | for (t = terminal_list; t; t = t->next_terminal) |
3fb8e5d7 | 1105 | { |
6ed8eeff | 1106 | if (t->kboard == p->kboard) |
3fb8e5d7 KL |
1107 | { |
1108 | current_kboard = p->kboard; | |
24f9525b | 1109 | found = 1; |
3fb8e5d7 KL |
1110 | break; |
1111 | } | |
1112 | } | |
24f9525b | 1113 | if (!found) |
3fb8e5d7 | 1114 | { |
6ed8eeff | 1115 | /* The terminal we remembered has been deleted. */ |
3fb8e5d7 | 1116 | current_kboard = FRAME_KBOARD (SELECTED_FRAME ()); |
b3e6f69c | 1117 | single_kboard = 0; |
3fb8e5d7 | 1118 | } |
1e8bd3da RS |
1119 | kboard_stack = p->next; |
1120 | xfree (p); | |
1121 | } | |
256c9c3a | 1122 | |
b3e6f69c KL |
1123 | /* Switch to single_kboard mode, making current_kboard the only KBOARD |
1124 | from which further input is accepted. If F is non-nil, set its | |
1125 | KBOARD as the current keyboard. | |
1126 | ||
1127 | This function uses record_unwind_protect to return to the previous | |
1128 | state later. | |
1129 | ||
1130 | If Emacs is already in single_kboard mode, and F's keyboard is | |
1131 | locked, then this function will throw an errow. */ | |
256c9c3a KL |
1132 | |
1133 | void | |
b3e6f69c KL |
1134 | temporarily_switch_to_single_kboard (f) |
1135 | struct frame *f; | |
256c9c3a | 1136 | { |
256c9c3a | 1137 | int was_locked = single_kboard; |
24f9525b KL |
1138 | if (was_locked) |
1139 | { | |
b3e6f69c KL |
1140 | if (f != NULL && FRAME_KBOARD (f) != current_kboard) |
1141 | /* We can not switch keyboards while in single_kboard mode. | |
251bc578 KL |
1142 | In rare cases, Lisp code may call `recursive-edit' (or |
1143 | `read-minibuffer' or `y-or-n-p') after it switched to a | |
1144 | locked frame. For example, this is likely to happen | |
1145 | when server.el connects to a new terminal while Emacs is in | |
1146 | single_kboard mode. It is best to throw an error instead | |
1147 | of presenting the user with a frozen screen. */ | |
b3e6f69c KL |
1148 | error ("Terminal %d is locked, cannot read from it", |
1149 | FRAME_TERMINAL (f)->id); | |
24f9525b | 1150 | else |
b3e6f69c KL |
1151 | /* This call is unnecessary, but helps |
1152 | `restore_kboard_configuration' discover if somebody changed | |
1153 | `current_kboard' behind our back. */ | |
24f9525b KL |
1154 | push_kboard (current_kboard); |
1155 | } | |
b3e6f69c KL |
1156 | else if (f != NULL) |
1157 | current_kboard = FRAME_KBOARD (f); | |
1158 | single_kboard = 1; | |
256c9c3a KL |
1159 | record_unwind_protect (restore_kboard_configuration, |
1160 | (was_locked ? Qt : Qnil)); | |
256c9c3a KL |
1161 | } |
1162 | ||
b3e6f69c | 1163 | #if 0 /* This function is not needed anymore. */ |
256c9c3a KL |
1164 | void |
1165 | record_single_kboard_state () | |
1166 | { | |
24f9525b KL |
1167 | if (single_kboard) |
1168 | push_kboard (current_kboard); | |
256c9c3a KL |
1169 | record_unwind_protect (restore_kboard_configuration, |
1170 | (single_kboard ? Qt : Qnil)); | |
1171 | } | |
b3e6f69c | 1172 | #endif |
256c9c3a KL |
1173 | |
1174 | static Lisp_Object | |
1175 | restore_kboard_configuration (was_locked) | |
1176 | Lisp_Object was_locked; | |
1177 | { | |
256c9c3a | 1178 | if (NILP (was_locked)) |
b3e6f69c | 1179 | single_kboard = 0; |
256c9c3a | 1180 | else |
24f9525b | 1181 | { |
b3e6f69c KL |
1182 | struct kboard *prev = current_kboard; |
1183 | single_kboard = 1; | |
24f9525b | 1184 | pop_kboard (); |
b3e6f69c KL |
1185 | /* The pop should not change the kboard. */ |
1186 | if (single_kboard && current_kboard != prev) | |
1187 | abort (); | |
24f9525b | 1188 | } |
256c9c3a KL |
1189 | return Qnil; |
1190 | } | |
e2dc7ae5 | 1191 | |
1e8bd3da RS |
1192 | \f |
1193 | /* Handle errors that are not handled at inner levels | |
1194 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1195 | |
284f4730 JB |
1196 | Lisp_Object |
1197 | cmd_error (data) | |
1198 | Lisp_Object data; | |
a1341f75 | 1199 | { |
a9f16aa9 | 1200 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1201 | char macroerror[50]; |
1202 | ||
d148e14d | 1203 | #ifdef HAVE_WINDOW_SYSTEM |
160552c5 RS |
1204 | if (display_hourglass_p) |
1205 | cancel_hourglass (); | |
1206 | #endif | |
1207 | ||
649d952d | 1208 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 1209 | { |
649d952d | 1210 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
1211 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
1212 | else | |
1213 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 1214 | executing_kbd_macro_iterations); |
e881d8b2 RS |
1215 | } |
1216 | else | |
1217 | *macroerror = 0; | |
a9f16aa9 | 1218 | |
a1341f75 RS |
1219 | Vstandard_output = Qt; |
1220 | Vstandard_input = Qt; | |
ce0d2858 | 1221 | Vexecuting_kbd_macro = Qnil; |
649d952d | 1222 | executing_kbd_macro = Qnil; |
d8bcf58e | 1223 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1224 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1225 | cancel_echoing (); |
a9f16aa9 KH |
1226 | |
1227 | /* Avoid unquittable loop if data contains a circular list. */ | |
1228 | old_level = Vprint_level; | |
1229 | old_length = Vprint_length; | |
0c04a67e RS |
1230 | XSETFASTINT (Vprint_level, 10); |
1231 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1232 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1233 | Vprint_level = old_level; |
1234 | Vprint_length = old_length; | |
a1341f75 RS |
1235 | |
1236 | Vquit_flag = Qnil; | |
1237 | ||
1238 | Vinhibit_quit = Qnil; | |
b3e6f69c | 1239 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
e3ee34f0 RS |
1240 | if (command_loop_level == 0 && minibuf_level == 0) |
1241 | any_kboard_state (); | |
ff4b06d3 | 1242 | #endif |
a1341f75 RS |
1243 | |
1244 | return make_number (0); | |
1245 | } | |
1246 | ||
301738ed RS |
1247 | /* Take actions on handling an error. DATA is the data that describes |
1248 | the error. | |
1249 | ||
1250 | CONTEXT is a C-string containing ASCII characters only which | |
1251 | describes the context in which the error happened. If we need to | |
1252 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1253 | string. */ | |
1254 | ||
07a59269 | 1255 | void |
a1341f75 RS |
1256 | cmd_error_internal (data, context) |
1257 | Lisp_Object data; | |
1258 | char *context; | |
284f4730 | 1259 | { |
788f89eb | 1260 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 1261 | |
04d8c47d RS |
1262 | /* The immediate context is not interesting for Quits, |
1263 | since they are asyncronous. */ | |
1264 | if (EQ (XCAR (data), Qquit)) | |
1265 | Vsignaling_function = Qnil; | |
1266 | ||
284f4730 JB |
1267 | Vquit_flag = Qnil; |
1268 | Vinhibit_quit = Qt; | |
284f4730 | 1269 | |
04d8c47d RS |
1270 | /* Use user's specified output function if any. */ |
1271 | if (!NILP (Vcommand_error_function)) | |
1272 | call3 (Vcommand_error_function, data, | |
fcd69a29 | 1273 | context ? build_string (context) : empty_unibyte_string, |
04d8c47d | 1274 | Vsignaling_function); |
ff11dfa1 | 1275 | /* If the window system or terminal frame hasn't been initialized |
04d8c47d RS |
1276 | yet, or we're not interactive, write the message to stderr and exit. */ |
1277 | else if (!sf->glyphs_initialized_p | |
0dad7c6f JR |
1278 | /* The initial frame is a special non-displaying frame. It |
1279 | will be current in daemon mode when there are no frames | |
1280 | to display, and in non-daemon mode before the real frame | |
1281 | has finished initializing. If an error is thrown in the | |
1282 | latter case while creating the frame, then the frame | |
1283 | will never be displayed, so the safest thing to do is | |
1284 | write to stderr and quit. In daemon mode, there are | |
1285 | many other potential errors that do not prevent frames | |
1286 | from being created, so continuing as normal is better in | |
1287 | that case. */ | |
1288 | || (!IS_DAEMON && FRAME_INITIAL_P (sf)) | |
04d8c47d RS |
1289 | || noninteractive) |
1290 | { | |
1291 | print_error_message (data, Qexternal_debugging_output, | |
1292 | context, Vsignaling_function); | |
1293 | Fterpri (Qexternal_debugging_output); | |
1294 | Fkill_emacs (make_number (-1)); | |
7ee32cda | 1295 | } |
284f4730 JB |
1296 | else |
1297 | { | |
04d8c47d | 1298 | clear_message (1, 0); |
284f4730 | 1299 | Fdiscard_input (); |
dc4854ce | 1300 | message_log_maybe_newline (); |
284f4730 | 1301 | bitch_at_user (); |
c60ee5e7 | 1302 | |
04d8c47d RS |
1303 | print_error_message (data, Qt, context, Vsignaling_function); |
1304 | } | |
a1341f75 | 1305 | |
dc4854ce | 1306 | Vsignaling_function = Qnil; |
284f4730 JB |
1307 | } |
1308 | \f | |
1309 | Lisp_Object command_loop_1 (); | |
1310 | Lisp_Object command_loop_2 (); | |
1311 | Lisp_Object top_level_1 (); | |
1312 | ||
1313 | /* Entry to editor-command-loop. | |
1314 | This level has the catches for exiting/returning to editor command loop. | |
1315 | It returns nil to exit recursive edit, t to abort it. */ | |
1316 | ||
1317 | Lisp_Object | |
1318 | command_loop () | |
1319 | { | |
1320 | if (command_loop_level > 0 || minibuf_level > 0) | |
1321 | { | |
07ba902e RS |
1322 | Lisp_Object val; |
1323 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1324 | executing_kbd_macro = Qnil; |
68c46464 | 1325 | return val; |
284f4730 JB |
1326 | } |
1327 | else | |
1328 | while (1) | |
1329 | { | |
1330 | internal_catch (Qtop_level, top_level_1, Qnil); | |
b3e6f69c | 1331 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c98e2d50 KL |
1332 | /* Reset single_kboard in case top-level set it while |
1333 | evaluating an -f option, or we are stuck there for some | |
1334 | other reason. */ | |
1335 | any_kboard_state (); | |
b3e6f69c | 1336 | #endif |
284f4730 | 1337 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1338 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1339 | |
284f4730 JB |
1340 | /* End of file in -batch run causes exit here. */ |
1341 | if (noninteractive) | |
1342 | Fkill_emacs (Qt); | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | /* Here we catch errors in execution of commands within the | |
1347 | editing loop, and reenter the editing loop. | |
1348 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1349 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1350 | returned due to end of file (or end of kbd macro). */ |
1351 | ||
1352 | Lisp_Object | |
1353 | command_loop_2 () | |
1354 | { | |
1355 | register Lisp_Object val; | |
1356 | ||
1357 | do | |
1358 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1359 | while (!NILP (val)); | |
1360 | ||
1361 | return Qnil; | |
1362 | } | |
1363 | ||
1364 | Lisp_Object | |
1365 | top_level_2 () | |
1366 | { | |
1367 | return Feval (Vtop_level); | |
1368 | } | |
1369 | ||
1370 | Lisp_Object | |
1371 | top_level_1 () | |
1372 | { | |
1373 | /* On entry to the outer level, run the startup file */ | |
1374 | if (!NILP (Vtop_level)) | |
1375 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1376 | else if (!NILP (Vpurify_flag)) | |
1377 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1378 | else | |
1379 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1380 | return Qnil; | |
1381 | } | |
1382 | ||
1383 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
9252e0c0 CY |
1384 | doc: /* Exit all recursive editing levels. |
1385 | This also exits all active minibuffers. */) | |
4707d2d0 | 1386 | () |
284f4730 | 1387 | { |
d148e14d | 1388 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
1389 | if (display_hourglass_p) |
1390 | cancel_hourglass (); | |
2c9cf2c8 | 1391 | #endif |
96edd5d4 | 1392 | |
a25e44b2 JD |
1393 | /* Unblock input if we enter with input blocked. This may happen if |
1394 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1395 | while (INPUT_BLOCKED_P) | |
1396 | UNBLOCK_INPUT; | |
1397 | ||
8c907a56 | 1398 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1399 | } |
1400 | ||
1401 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1402 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1403 | () | |
284f4730 JB |
1404 | { |
1405 | if (command_loop_level > 0 || minibuf_level > 0) | |
1406 | Fthrow (Qexit, Qnil); | |
1407 | ||
1408 | error ("No recursive edit is in progress"); | |
8c907a56 | 1409 | return Qnil; |
284f4730 JB |
1410 | } |
1411 | ||
1412 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1413 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1414 | () | |
284f4730 JB |
1415 | { |
1416 | if (command_loop_level > 0 || minibuf_level > 0) | |
1417 | Fthrow (Qexit, Qt); | |
1418 | ||
1419 | error ("No recursive edit is in progress"); | |
8c907a56 | 1420 | return Qnil; |
284f4730 JB |
1421 | } |
1422 | \f | |
ae372f41 | 1423 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c5b76d6c CY |
1424 | |
1425 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use | |
1426 | of this function. */ | |
1427 | ||
1428 | static Lisp_Object | |
1429 | tracking_off (old_value) | |
1430 | Lisp_Object old_value; | |
1431 | { | |
1432 | do_mouse_tracking = old_value; | |
1433 | if (NILP (old_value)) | |
1434 | { | |
1435 | /* Redisplay may have been preempted because there was input | |
1436 | available, and it assumes it will be called again after the | |
1437 | input has been processed. If the only input available was | |
1438 | the sort that we have just disabled, then we need to call | |
1439 | redisplay. */ | |
1440 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) | |
1441 | { | |
1442 | redisplay_preserve_echo_area (6); | |
1443 | get_input_pending (&input_pending, | |
1444 | READABLE_EVENTS_DO_TIMERS_NOW); | |
1445 | } | |
1446 | } | |
1447 | return Qnil; | |
1448 | } | |
1449 | ||
1450 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
1451 | doc: /* Evaluate BODY with mouse movement events enabled. | |
1452 | Within a `track-mouse' form, mouse motion generates input events that | |
1453 | you can read with `read-event'. | |
1454 | Normally, mouse motion is ignored. | |
d514369d | 1455 | usage: (track-mouse BODY...) */) |
c5b76d6c CY |
1456 | (args) |
1457 | Lisp_Object args; | |
1458 | { | |
1459 | int count = SPECPDL_INDEX (); | |
1460 | Lisp_Object val; | |
1461 | ||
1462 | record_unwind_protect (tracking_off, do_mouse_tracking); | |
1463 | ||
1464 | do_mouse_tracking = Qt; | |
1465 | ||
1466 | val = Fprogn (args); | |
1467 | return unbind_to (count, val); | |
1468 | } | |
1469 | ||
1470 | /* If mouse has moved on some frame, return one of those frames. | |
3b0cdcef KS |
1471 | |
1472 | Return 0 otherwise. | |
1473 | ||
1474 | If ignore_mouse_drag_p is non-zero, ignore (implicit) mouse movement | |
1475 | after resizing the tool-bar window. */ | |
1476 | ||
1477 | int ignore_mouse_drag_p; | |
c5b76d6c CY |
1478 | |
1479 | static FRAME_PTR | |
1480 | some_mouse_moved () | |
1481 | { | |
1482 | Lisp_Object tail, frame; | |
1483 | ||
3b0cdcef KS |
1484 | if (ignore_mouse_drag_p) |
1485 | { | |
e2bb07db | 1486 | /* ignore_mouse_drag_p = 0; */ |
3b0cdcef KS |
1487 | return 0; |
1488 | } | |
1489 | ||
c5b76d6c CY |
1490 | FOR_EACH_FRAME (tail, frame) |
1491 | { | |
1492 | if (XFRAME (frame)->mouse_moved) | |
1493 | return XFRAME (frame); | |
1494 | } | |
1495 | ||
1496 | return 0; | |
1497 | } | |
1498 | ||
ae372f41 | 1499 | #endif /* HAVE_MOUSE || HAVE_GPM */ |
c5b76d6c | 1500 | \f |
284f4730 JB |
1501 | /* This is the actual command reading loop, |
1502 | sans error-handling encapsulation. */ | |
1503 | ||
a7b772c1 GM |
1504 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1505 | int, int, int)); | |
1506 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1507 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1508 | |
0af912f0 JD |
1509 | /* Cancel hourglass from protect_unwind. |
1510 | ARG is not used. */ | |
d148e14d | 1511 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1512 | static Lisp_Object |
1513 | cancel_hourglass_unwind (arg) | |
1514 | Lisp_Object arg; | |
1515 | { | |
1516 | cancel_hourglass (); | |
3a0ae1f3 | 1517 | return Qnil; |
0af912f0 | 1518 | } |
bb8db7e1 | 1519 | #endif |
0af912f0 | 1520 | |
1ac9108a SM |
1521 | extern int nonundocount; /* Declared in cmds.c. */ |
1522 | ||
284f4730 JB |
1523 | Lisp_Object |
1524 | command_loop_1 () | |
1525 | { | |
03cee6ae GM |
1526 | Lisp_Object cmd; |
1527 | int lose; | |
284f4730 JB |
1528 | Lisp_Object keybuf[30]; |
1529 | int i; | |
a53fe666 | 1530 | int prev_modiff = 0; |
8c907a56 | 1531 | struct buffer *prev_buffer = NULL; |
b3e6f69c | 1532 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
1e8bd3da | 1533 | int was_locked = single_kboard; |
033b73e2 | 1534 | #endif |
80d4c824 | 1535 | int already_adjusted = 0; |
284f4730 | 1536 | |
d9b641bb | 1537 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1538 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1539 | Vdeactivate_mark = Qnil; |
284f4730 | 1540 | waiting_for_input = 0; |
df0f2ba1 | 1541 | cancel_echoing (); |
284f4730 | 1542 | |
284f4730 | 1543 | this_command_key_count = 0; |
63020c46 | 1544 | this_command_key_count_reset = 0; |
6321824f | 1545 | this_single_command_key_start = 0; |
284f4730 | 1546 | |
325309f5 | 1547 | if (NILP (Vmemory_full)) |
59aadc81 | 1548 | { |
10ffcb64 RS |
1549 | /* Make sure this hook runs after commands that get errors and |
1550 | throw to top level. */ | |
1551 | /* Note that the value cell will never directly contain nil | |
1552 | if the symbol is a local variable. */ | |
1553 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1554 | safe_run_hooks (Qpost_command_hook); | |
1555 | ||
1556 | /* If displaying a message, resize the echo area window to fit | |
1557 | that message's size exactly. */ | |
1558 | if (!NILP (echo_area_buffer[0])) | |
1559 | resize_echo_area_exactly (); | |
1560 | ||
1561 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1562 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1563 | } |
1564 | ||
51d5a2c9 | 1565 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1566 | current_kboard->Vlast_command = Vthis_command; |
1567 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1568 | if (!CONSP (last_command_event)) |
d0d3a311 | 1569 | current_kboard->Vlast_repeatable_command = real_this_command; |
51d5a2c9 | 1570 | |
284f4730 JB |
1571 | while (1) |
1572 | { | |
788f89eb | 1573 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1574 | Fkill_emacs (Qnil); |
1575 | ||
284f4730 JB |
1576 | /* Make sure the current window's buffer is selected. */ |
1577 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1578 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1579 | ||
1580 | /* Display any malloc warning that just came out. Use while because | |
1581 | displaying one warning can cause another. */ | |
1582 | ||
1583 | while (pending_malloc_warning) | |
1584 | display_malloc_warning (); | |
1585 | ||
86e5706b RS |
1586 | Vdeactivate_mark = Qnil; |
1587 | ||
284f4730 | 1588 | /* If minibuffer on and echo area in use, |
00392ce6 | 1589 | wait a short time and redraw minibuffer. */ |
284f4730 | 1590 | |
7ee32cda | 1591 | if (minibuf_level |
985f9f66 | 1592 | && !NILP (echo_area_buffer[0]) |
6a8128ef CY |
1593 | && EQ (minibuf_window, echo_area_window) |
1594 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1595 | { |
f1bed6d8 RS |
1596 | /* Bind inhibit-quit to t so that C-g gets read in |
1597 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1598 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1599 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1600 | |
6a8128ef | 1601 | sit_for (Vminibuffer_message_timeout, 0, 2); |
666dc232 | 1602 | |
e6aa7813 | 1603 | /* Clear the echo area. */ |
301738ed | 1604 | message2 (0, 0, 0); |
cdb9d665 | 1605 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1606 | |
db08707d RS |
1607 | unbind_to (count, Qnil); |
1608 | ||
e6aa7813 | 1609 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1610 | if (!NILP (Vquit_flag)) |
1611 | { | |
1612 | Vquit_flag = Qnil; | |
24597608 | 1613 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1614 | } |
1615 | } | |
1616 | ||
8f805655 | 1617 | #if 0 |
8f805655 JB |
1618 | /* Select the frame that the last event came from. Usually, |
1619 | switch-frame events will take care of this, but if some lisp | |
1620 | code swallows a switch-frame event, we'll fix things up here. | |
1621 | Is this a good idea? */ | |
8c18cbfb | 1622 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1623 | && !EQ (internal_last_event_frame, selected_frame)) |
e630dfc6 | 1624 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1625 | #endif |
48e416d4 RS |
1626 | /* If it has changed current-menubar from previous value, |
1627 | really recompute the menubar from the value. */ | |
a646e520 RS |
1628 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1629 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1630 | call0 (Qrecompute_lucid_menubar); |
1631 | ||
71918b75 RS |
1632 | before_command_key_count = this_command_key_count; |
1633 | before_command_echo_length = echo_length (); | |
1634 | ||
d5eecefb RS |
1635 | Vthis_command = Qnil; |
1636 | real_this_command = Qnil; | |
9d138659 | 1637 | Vthis_original_command = Qnil; |
025ae953 | 1638 | Vthis_command_keys_shift_translated = Qnil; |
d7437ef6 | 1639 | |
8f805655 | 1640 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1641 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1642 | Qnil, 0, 1, 1); |
8f805655 | 1643 | |
6fac1409 | 1644 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1645 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1646 | Fkill_emacs (Qnil); |
6fac1409 RS |
1647 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1648 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1649 | ||
8f805655 JB |
1650 | ++num_input_keys; |
1651 | ||
284f4730 JB |
1652 | /* Now we have read a key sequence of length I, |
1653 | or else I is 0 and we found end of file. */ | |
1654 | ||
1655 | if (i == 0) /* End of file -- happens only in */ | |
1656 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1657 | /* -1 means read_key_sequence got a menu that was rejected. |
1658 | Just loop around and read another command. */ | |
1659 | if (i == -1) | |
1660 | { | |
1661 | cancel_echoing (); | |
1662 | this_command_key_count = 0; | |
63020c46 | 1663 | this_command_key_count_reset = 0; |
6321824f | 1664 | this_single_command_key_start = 0; |
ff4b06d3 | 1665 | goto finalize; |
dcc408a0 | 1666 | } |
284f4730 | 1667 | |
4b09796d | 1668 | last_command_event = keybuf[i - 1]; |
284f4730 | 1669 | |
75c0b143 RS |
1670 | /* If the previous command tried to force a specific window-start, |
1671 | forget about that, in case this command moves point far away | |
c422836d KH |
1672 | from that position. But also throw away beg_unchanged and |
1673 | end_unchanged information in that case, so that redisplay will | |
1674 | update the whole window properly. */ | |
1675 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1676 | { | |
9351ebd0 | 1677 | struct buffer *b; |
c422836d | 1678 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1679 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1680 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1681 | } |
75c0b143 | 1682 | |
284f4730 | 1683 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1684 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1685 | { |
1686 | if (!NILP (Vquit_flag)) | |
1687 | { | |
ce0d2858 | 1688 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1689 | QUIT; /* Make some noise. */ |
1690 | /* Will return since macro now empty. */ | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1695 | cases identified below. */ |
86e5706b RS |
1696 | prev_buffer = current_buffer; |
1697 | prev_modiff = MODIFF; | |
8746da95 | 1698 | last_point_position = PT; |
bb0e1d19 | 1699 | last_point_position_window = selected_window; |
18cd2eeb | 1700 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1701 | |
adf5cb9c KH |
1702 | /* By default, we adjust point to a boundary of a region that |
1703 | has such a property that should be treated intangible | |
1704 | (e.g. composition, display). But, some commands will set | |
1705 | this variable differently. */ | |
1706 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1707 | |
be2488ca GM |
1708 | /* Process filters and timers may have messed with deactivate-mark. |
1709 | reset it before we execute the command. */ | |
1710 | Vdeactivate_mark = Qnil; | |
1711 | ||
8b9940e6 KS |
1712 | /* Remap command through active keymaps */ |
1713 | Vthis_original_command = cmd; | |
a34cb674 | 1714 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1715 | { |
1716 | Lisp_Object cmd1; | |
9be34f7f | 1717 | if (cmd1 = Fcommand_remapping (cmd, Qnil, Qnil), !NILP (cmd1)) |
8b9940e6 KS |
1718 | cmd = cmd1; |
1719 | } | |
1720 | ||
284f4730 JB |
1721 | /* Execute the command. */ |
1722 | ||
d5eecefb RS |
1723 | Vthis_command = cmd; |
1724 | real_this_command = cmd; | |
a98ea3f9 RS |
1725 | /* Note that the value cell will never directly contain nil |
1726 | if the symbol is a local variable. */ | |
e98a93eb | 1727 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1728 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1729 | |
2764bebd RS |
1730 | already_adjusted = 0; |
1731 | ||
d5eecefb | 1732 | if (NILP (Vthis_command)) |
284f4730 JB |
1733 | { |
1734 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1735 | Lisp_Object keys = Fvector (i, keybuf); |
1736 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1737 | bitch_at_user (); |
1bf0e604 | 1738 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1739 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1740 | update_mode_lines = 1; |
d8bcf58e | 1741 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1742 | } |
1743 | else | |
1744 | { | |
6d0867e5 | 1745 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1746 | { |
75045dcb RS |
1747 | /* In case we jump to directly_done. */ |
1748 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1749 | ||
284f4730 JB |
1750 | /* Recognize some common commands in common situations and |
1751 | do them directly. */ | |
025ae953 CY |
1752 | if (EQ (Vthis_command, Qforward_char) && PT < ZV |
1753 | && NILP (Vthis_command_keys_shift_translated) | |
1754 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1755 | { |
51ad8a68 | 1756 | struct Lisp_Char_Table *dp |
284f4730 | 1757 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1758 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1759 | SET_PT (PT + 1); |
d86ba5c5 RS |
1760 | if (! NILP (Vpost_command_hook)) |
1761 | /* Put this before calling adjust_point_for_property | |
1762 | so it will only get called once in any case. */ | |
1763 | goto directly_done; | |
22b94eeb RS |
1764 | if (current_buffer == prev_buffer |
1765 | && last_point_position != PT | |
1766 | && NILP (Vdisable_point_adjustment) | |
1767 | && NILP (Vglobal_disable_point_adjustment)) | |
1768 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1769 | already_adjusted = 1; |
1770 | if (PT == last_point_position + 1 | |
1771 | && (dp | |
1772 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1773 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1774 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1775 | && (lose >= 0x20 && lose < 0x7f))) | |
1776 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1777 | /* To extract the case of continuation on |
1778 | wide-column characters. */ | |
8b461910 | 1779 | && ASCII_BYTE_P (lose) |
284f4730 JB |
1780 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1781 | >= MODIFF) | |
598ba4c7 RS |
1782 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1783 | >= OVERLAY_MODIFF) | |
284f4730 | 1784 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1785 | == PT - 1) |
284f4730 JB |
1786 | && !windows_or_buffers_changed |
1787 | && EQ (current_buffer->selective_display, Qnil) | |
1788 | && !detect_input_pending () | |
962ae636 | 1789 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1790 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1791 | direct_output_forward_char (1); |
284f4730 JB |
1792 | goto directly_done; |
1793 | } | |
025ae953 CY |
1794 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV |
1795 | && NILP (Vthis_command_keys_shift_translated) | |
1796 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1797 | { |
51ad8a68 | 1798 | struct Lisp_Char_Table *dp |
284f4730 | 1799 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1800 | SET_PT (PT - 1); |
aaf35234 | 1801 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1802 | if (! NILP (Vpost_command_hook)) |
1803 | goto directly_done; | |
22b94eeb RS |
1804 | if (current_buffer == prev_buffer |
1805 | && last_point_position != PT | |
1806 | && NILP (Vdisable_point_adjustment) | |
1807 | && NILP (Vglobal_disable_point_adjustment)) | |
1808 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1809 | already_adjusted = 1; |
1810 | if (PT == last_point_position - 1 | |
1811 | && (dp | |
1812 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1813 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1814 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1815 | && (lose >= 0x20 && lose < 0x7f))) | |
1816 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1817 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1818 | >= MODIFF) | |
598ba4c7 RS |
1819 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1820 | >= OVERLAY_MODIFF) | |
284f4730 | 1821 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1822 | == PT + 1) |
284f4730 JB |
1823 | && !windows_or_buffers_changed |
1824 | && EQ (current_buffer->selective_display, Qnil) | |
1825 | && !detect_input_pending () | |
962ae636 | 1826 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1827 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1828 | direct_output_forward_char (-1); |
284f4730 JB |
1829 | goto directly_done; |
1830 | } | |
d5eecefb | 1831 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 | 1832 | /* Try this optimization only on char keystrokes. */ |
4b09796d GM |
1833 | && NATNUMP (last_command_event) |
1834 | && CHAR_VALID_P (XFASTINT (last_command_event), 0)) | |
284f4730 | 1835 | { |
d86ba5c5 RS |
1836 | unsigned int c |
1837 | = translate_char (Vtranslation_table_for_input, | |
4b09796d | 1838 | XFASTINT (last_command_event)); |
fc9cce4e | 1839 | int value; |
ce0d2858 | 1840 | if (NILP (Vexecuting_kbd_macro) |
fc9cce4e | 1841 | && !EQ (minibuf_window, selected_window)) |
284f4730 JB |
1842 | { |
1843 | if (!nonundocount || nonundocount >= 20) | |
1844 | { | |
1845 | Fundo_boundary (); | |
1846 | nonundocount = 0; | |
1847 | } | |
1848 | nonundocount++; | |
1849 | } | |
c60ee5e7 | 1850 | |
fc9cce4e RS |
1851 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1852 | < MODIFF) | |
598ba4c7 RS |
1853 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1854 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1855 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1856 | != PT) | |
4c61f38e | 1857 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1858 | || windows_or_buffers_changed |
1859 | || !EQ (current_buffer->selective_display, Qnil) | |
1860 | || detect_input_pending () | |
962ae636 | 1861 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1862 | || !NILP (Vexecuting_kbd_macro)); |
c60ee5e7 | 1863 | |
fc9cce4e | 1864 | value = internal_self_insert (c, 0); |
7ee32cda | 1865 | |
fc9cce4e RS |
1866 | if (value == 2) |
1867 | nonundocount = 0; | |
1868 | ||
e044e4fc JD |
1869 | frame_make_pointer_invisible (); |
1870 | ||
294d643a RS |
1871 | if (! NILP (Vpost_command_hook)) |
1872 | /* Put this before calling adjust_point_for_property | |
1873 | so it will only get called once in any case. */ | |
1874 | goto directly_done; | |
1875 | ||
7ee32cda GM |
1876 | /* VALUE == 1 when AFTER-CHANGE functions are |
1877 | installed which is the case most of the time | |
1878 | because FONT-LOCK installs one. */ | |
1879 | if (!lose && !value) | |
e35b6123 | 1880 | direct_output_for_insert (c); |
284f4730 JB |
1881 | goto directly_done; |
1882 | } | |
1883 | } | |
1884 | ||
1885 | /* Here for a command that isn't executed directly */ | |
1886 | ||
0af912f0 | 1887 | { |
d148e14d | 1888 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1889 | int scount = SPECPDL_INDEX (); |
1890 | ||
1891 | if (display_hourglass_p | |
ce0d2858 | 1892 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1893 | { |
1894 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1895 | start_hourglass (); | |
1896 | } | |
7ee32cda GM |
1897 | #endif |
1898 | ||
0af912f0 | 1899 | nonundocount = 0; |
1ac9108a | 1900 | if (NILP (current_kboard->Vprefix_arg)) /* FIXME: Why? --Stef */ |
0af912f0 JD |
1901 | Fundo_boundary (); |
1902 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 | 1903 | |
d148e14d | 1904 | #ifdef HAVE_WINDOW_SYSTEM |
4fbcc9b1 PJ |
1905 | /* Do not check display_hourglass_p here, because |
1906 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1907 | hourglass cursor anyway. |
1908 | But don't cancel the hourglass within a macro | |
1909 | just because a command in the macro finishes. */ | |
ce0d2858 | 1910 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1911 | unbind_to (scount, Qnil); |
d0c48478 | 1912 | #endif |
0af912f0 | 1913 | } |
284f4730 | 1914 | } |
a764a753 | 1915 | directly_done: ; |
75045dcb | 1916 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1917 | |
84ee6048 RS |
1918 | /* Note that the value cell will never directly contain nil |
1919 | if the symbol is a local variable. */ | |
1920 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1921 | safe_run_hooks (Qpost_command_hook); | |
1922 | ||
8f12e41d GM |
1923 | /* If displaying a message, resize the echo area window to fit |
1924 | that message's size exactly. */ | |
1925 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1926 | resize_echo_area_exactly (); |
8f12e41d | 1927 | |
84ee6048 RS |
1928 | if (!NILP (Vdeferred_action_list)) |
1929 | safe_run_hooks (Qdeferred_action_function); | |
1930 | ||
284f4730 | 1931 | /* If there is a prefix argument, |
6c7178b9 KH |
1932 | 1) We don't want Vlast_command to be ``universal-argument'' |
1933 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1934 | 2) we want to leave echoing on so that the prefix will be |
1935 | echoed as part of this key sequence, so don't call | |
1936 | cancel_echoing, and | |
1937 | 3) we want to leave this_command_key_count non-zero, so that | |
1938 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1939 | not echo it a second time. |
1940 | ||
1941 | If the command didn't actually create a prefix arg, | |
1942 | but is merely a frame event that is transparent to prefix args, | |
1943 | then the above doesn't apply. */ | |
4b09796d | 1944 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_event)) |
284f4730 | 1945 | { |
d5eecefb RS |
1946 | current_kboard->Vlast_command = Vthis_command; |
1947 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1948 | if (!CONSP (last_command_event)) |
d0d3a311 | 1949 | current_kboard->Vlast_repeatable_command = real_this_command; |
284f4730 JB |
1950 | cancel_echoing (); |
1951 | this_command_key_count = 0; | |
63020c46 | 1952 | this_command_key_count_reset = 0; |
6321824f | 1953 | this_single_command_key_start = 0; |
284f4730 | 1954 | } |
86e5706b | 1955 | |
88ce066e | 1956 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b | 1957 | { |
12679e05 CY |
1958 | /* In Emacs 22, setting transient-mark-mode to `only' was a |
1959 | way of turning it on for just one command. This usage is | |
1960 | obsolete, but support it anyway. */ | |
1961 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1962 | Vtransient_mark_mode = Qnil; | |
1963 | else if (EQ (Vtransient_mark_mode, Qonly)) | |
1964 | Vtransient_mark_mode = Qidentity; | |
1965 | ||
5c4cc82a SM |
1966 | if (!NILP (Vdeactivate_mark)) |
1967 | call0 (Qdeactivate_mark); | |
86e5706b RS |
1968 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) |
1969 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1970 | } | |
ff4b06d3 KH |
1971 | |
1972 | finalize: | |
adf5cb9c KH |
1973 | |
1974 | if (current_buffer == prev_buffer | |
1975 | && last_point_position != PT | |
1976 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1977 | && NILP (Vglobal_disable_point_adjustment) |
1978 | && !already_adjusted) | |
2a026b04 | 1979 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1980 | |
ff4b06d3 KH |
1981 | /* Install chars successfully executed in kbd macro. */ |
1982 | ||
d8bcf58e KH |
1983 | if (!NILP (current_kboard->defining_kbd_macro) |
1984 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 | 1985 | finalize_kbd_macro_chars (); |
b3e6f69c | 1986 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
604ccd1d | 1987 | if (!was_locked) |
b3e6f69c | 1988 | any_kboard_state (); |
ff4b06d3 | 1989 | #endif |
284f4730 JB |
1990 | } |
1991 | } | |
1c9784c9 | 1992 | |
adf5cb9c KH |
1993 | extern Lisp_Object Qcomposition, Qdisplay; |
1994 | ||
1995 | /* Adjust point to a boundary of a region that has such a property | |
1996 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1997 | `composition', `display' and `invisible' properties. |
1998 | LAST_PT is the last position of point. */ | |
adf5cb9c | 1999 | |
14e40288 SM |
2000 | extern Lisp_Object Qafter_string, Qbefore_string; |
2001 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
2002 | ||
adf5cb9c | 2003 | static void |
2a026b04 | 2004 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 2005 | int last_pt; |
2a026b04 | 2006 | int modified; |
adf5cb9c | 2007 | { |
2b95772c | 2008 | EMACS_INT beg, end; |
7e16ef60 SM |
2009 | Lisp_Object val, overlay, tmp; |
2010 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 2011 | int orig_pt = PT; |
adf5cb9c | 2012 | |
0bbdffbd SM |
2013 | /* FIXME: cycling is probably not necessary because these properties |
2014 | can't be usefully combined anyway. */ | |
7e16ef60 | 2015 | while (check_composition || check_display || check_invisible) |
adf5cb9c | 2016 | { |
5c4cc82a | 2017 | /* FIXME: check `intangible'. */ |
adf5cb9c KH |
2018 | if (check_composition |
2019 | && PT > BEGV && PT < ZV | |
db2f2cdc | 2020 | && (beg = composition_adjust_point (last_pt)) != PT) |
adf5cb9c | 2021 | { |
db2f2cdc | 2022 | SET_PT (beg); |
14e40288 | 2023 | check_display = check_invisible = 1; |
adf5cb9c KH |
2024 | } |
2025 | check_composition = 0; | |
2026 | if (check_display | |
2027 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
2028 | && !NILP (val = get_char_property_and_overlay |
2029 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 2030 | && display_prop_intangible_p (val) |
7e16ef60 SM |
2031 | && (!OVERLAYP (overlay) |
2032 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
2033 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
2034 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
2035 | && (beg < PT /* && end > PT <- It's always the case. */ |
2036 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 2037 | { |
14e40288 | 2038 | xassert (end > PT); |
4ca39724 KS |
2039 | SET_PT (PT < last_pt |
2040 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
2041 | : end); | |
14e40288 | 2042 | check_composition = check_invisible = 1; |
adf5cb9c KH |
2043 | } |
2044 | check_display = 0; | |
14e40288 | 2045 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 2046 | { |
14e40288 SM |
2047 | int inv, ellipsis = 0; |
2048 | beg = end = PT; | |
2049 | ||
2050 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
2051 | while (end < ZV | |
0a0e7d49 CY |
2052 | #if 0 |
2053 | /* FIXME: We should stop if we find a spot between | |
2054 | two runs of `invisible' where inserted text would | |
2055 | be visible. This is important when we have two | |
2056 | invisible boundaries that enclose an area: if the | |
2057 | area is empty, we need this test in order to make | |
2058 | it possible to place point in the middle rather | |
2059 | than skip both boundaries. However, this code | |
2060 | also stops anywhere in a non-sticky text-property, | |
2061 | which breaks (e.g.) Org mode. */ | |
51d861de SM |
2062 | && (val = get_pos_property (make_number (end), |
2063 | Qinvisible, Qnil), | |
2064 | TEXT_PROP_MEANS_INVISIBLE (val)) | |
0a0e7d49 | 2065 | #endif |
14e40288 SM |
2066 | && !NILP (val = get_char_property_and_overlay |
2067 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
2068 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2069 | { | |
2070 | ellipsis = ellipsis || inv > 1 | |
2071 | || (OVERLAYP (overlay) | |
2072 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2073 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2074 | tmp = Fnext_single_char_property_change | |
2075 | (make_number (end), Qinvisible, Qnil, Qnil); | |
2076 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
2077 | } | |
2078 | while (beg > BEGV | |
0a0e7d49 | 2079 | #if 0 |
51d861de SM |
2080 | && (val = get_pos_property (make_number (beg), |
2081 | Qinvisible, Qnil), | |
2082 | TEXT_PROP_MEANS_INVISIBLE (val)) | |
0a0e7d49 | 2083 | #endif |
14e40288 SM |
2084 | && !NILP (val = get_char_property_and_overlay |
2085 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
2086 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2087 | { | |
2088 | ellipsis = ellipsis || inv > 1 | |
2089 | || (OVERLAYP (overlay) | |
2090 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2091 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2092 | tmp = Fprevious_single_char_property_change | |
2093 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
2094 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
2095 | } | |
c60ee5e7 | 2096 | |
14e40288 SM |
2097 | /* Move away from the inside area. */ |
2098 | if (beg < PT && end > PT) | |
2099 | { | |
0bbdffbd SM |
2100 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
2101 | /* We haven't moved yet (so we don't need to fear | |
2102 | infinite-looping) and we were outside the range | |
2103 | before (so either end of the range still corresponds | |
2104 | to a move in the right direction): pretend we moved | |
2105 | less than we actually did, so that we still have | |
2106 | more freedom below in choosing which end of the range | |
2107 | to go to. */ | |
9465a86c | 2108 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
2109 | /* We either have moved already or the last point |
2110 | was already in the range: we don't get to choose | |
2111 | which end of the range we have to go to. */ | |
2112 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
2113 | check_composition = check_display = 1; |
2114 | } | |
6b61353c KH |
2115 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
2116 | the point to something other than its argument, due to | |
2117 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 2118 | xassert (PT == beg || PT == end); |
6b61353c KH |
2119 | #endif |
2120 | ||
2a026b04 KH |
2121 | /* Pretend the area doesn't exist if the buffer is not |
2122 | modified. */ | |
2123 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
2124 | { |
2125 | if (last_pt == beg && PT == end && end < ZV) | |
2126 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
2127 | else if (last_pt == end && PT == beg && beg > BEGV) | |
2128 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
2129 | else if (PT == ((PT < last_pt) ? beg : end)) | |
2130 | /* We've already moved as far as we can. Trying to go | |
2131 | to the other end would mean moving backwards and thus | |
2132 | could lead to an infinite loop. */ | |
2133 | ; | |
2134 | else if (val = get_pos_property (make_number (PT), | |
2135 | Qinvisible, Qnil), | |
2136 | TEXT_PROP_MEANS_INVISIBLE (val) | |
2137 | && (val = get_pos_property | |
2138 | (make_number (PT == beg ? end : beg), | |
2139 | Qinvisible, Qnil), | |
2140 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
2141 | (check_composition = check_display = 1, | |
2142 | SET_PT (PT == beg ? end : beg)); | |
2143 | } | |
7e16ef60 SM |
2144 | } |
2145 | check_invisible = 0; | |
adf5cb9c KH |
2146 | } |
2147 | } | |
2148 | ||
0bc3db2b RS |
2149 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
2150 | ||
2151 | static Lisp_Object | |
2152 | safe_run_hooks_1 (hook) | |
2153 | Lisp_Object hook; | |
2154 | { | |
5e093f44 RS |
2155 | if (NILP (Vrun_hooks)) |
2156 | return Qnil; | |
0bc3db2b RS |
2157 | return call1 (Vrun_hooks, Vinhibit_quit); |
2158 | } | |
2159 | ||
2160 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
2161 | ||
2162 | static Lisp_Object | |
2163 | safe_run_hooks_error (data) | |
2164 | Lisp_Object data; | |
2165 | { | |
adec392e SM |
2166 | Lisp_Object args[3]; |
2167 | args[0] = build_string ("Error in %s: %s"); | |
2168 | args[1] = Vinhibit_quit; | |
2169 | args[2] = data; | |
2170 | Fmessage (3, args); | |
30690496 | 2171 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2172 | } |
2173 | ||
1c9784c9 KH |
2174 | /* If we get an error while running the hook, cause the hook variable |
2175 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2176 | to mysteriously evaporate. */ | |
0bc3db2b | 2177 | |
68f297c5 | 2178 | void |
1c9784c9 | 2179 | safe_run_hooks (hook) |
a98ea3f9 | 2180 | Lisp_Object hook; |
1c9784c9 | 2181 | { |
aed13378 | 2182 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2183 | specbind (Qinhibit_quit, hook); |
2184 | ||
e702932d | 2185 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2186 | |
2187 | unbind_to (count, Qnil); | |
2188 | } | |
8a9f5d3c | 2189 | |
284f4730 | 2190 | \f |
8a9f5d3c GM |
2191 | /* Number of seconds between polling for input. This is a Lisp |
2192 | variable that can be bound. */ | |
2193 | ||
31ade731 | 2194 | EMACS_INT polling_period; |
284f4730 | 2195 | |
eb8c3be9 | 2196 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2197 | |
284f4730 JB |
2198 | int poll_suppress_count; |
2199 | ||
8a9f5d3c GM |
2200 | /* Asynchronous timer for polling. */ |
2201 | ||
2202 | struct atimer *poll_timer; | |
2203 | ||
284f4730 | 2204 | |
36922b18 RS |
2205 | #ifdef POLL_FOR_INPUT |
2206 | ||
c96169a0 | 2207 | /* Poll for input, so that we catch a C-g if it comes in. This |
8a9f5d3c GM |
2208 | function is called from x_make_frame_visible, see comment |
2209 | there. */ | |
284f4730 | 2210 | |
8a9f5d3c GM |
2211 | void |
2212 | poll_for_input_1 () | |
284f4730 | 2213 | { |
c96169a0 AR |
2214 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
2215 | doing anything dangerous. */ | |
2216 | #ifdef HAVE_NS | |
2217 | ++handling_signal; | |
2218 | #endif | |
9ac0d9e0 JB |
2219 | if (interrupt_input_blocked == 0 |
2220 | && !waiting_for_input) | |
2221 | read_avail_input (0); | |
c96169a0 AR |
2222 | #ifdef HAVE_NS |
2223 | --handling_signal; | |
2224 | #endif | |
284f4730 JB |
2225 | } |
2226 | ||
8a9f5d3c GM |
2227 | /* Timer callback function for poll_timer. TIMER is equal to |
2228 | poll_timer. */ | |
2229 | ||
2230 | void | |
2231 | poll_for_input (timer) | |
2232 | struct atimer *timer; | |
2233 | { | |
2234 | if (poll_suppress_count == 0) | |
ceb18827 | 2235 | { |
a42bf890 | 2236 | #ifdef SYNC_INPUT |
ceb18827 CY |
2237 | interrupt_input_pending = 1; |
2238 | pending_signals = 1; | |
a42bf890 | 2239 | #else |
ceb18827 | 2240 | poll_for_input_1 (); |
a42bf890 | 2241 | #endif |
ceb18827 | 2242 | } |
8a9f5d3c GM |
2243 | } |
2244 | ||
2245 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2246 | |
2247 | /* Begin signals to poll for input, if they are appropriate. | |
2248 | This function is called unconditionally from various places. */ | |
2249 | ||
07a59269 | 2250 | void |
284f4730 JB |
2251 | start_polling () |
2252 | { | |
2253 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2254 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2255 | but read_socket_hook is not global anymore. Let's pretend that | |
2256 | it's always set. */ | |
2257 | if (!interrupt_input) | |
284f4730 | 2258 | { |
8a9f5d3c GM |
2259 | /* Turn alarm handling on unconditionally. It might have |
2260 | been turned off in process.c. */ | |
2261 | turn_on_atimers (1); | |
c60ee5e7 | 2262 | |
8a9f5d3c GM |
2263 | /* If poll timer doesn't exist, are we need one with |
2264 | a different interval, start a new one. */ | |
2265 | if (poll_timer == NULL | |
2266 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2267 | { |
8a9f5d3c GM |
2268 | EMACS_TIME interval; |
2269 | ||
2270 | if (poll_timer) | |
2271 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2272 | |
8a9f5d3c GM |
2273 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2274 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2275 | poll_for_input, NULL); | |
284f4730 | 2276 | } |
8a9f5d3c GM |
2277 | |
2278 | /* Let the timer's callback function poll for input | |
2279 | if this becomes zero. */ | |
2280 | --poll_suppress_count; | |
284f4730 JB |
2281 | } |
2282 | #endif | |
2283 | } | |
2284 | ||
1d3195db RS |
2285 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2286 | ||
2287 | int | |
2288 | input_polling_used () | |
2289 | { | |
2290 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2291 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2292 | but read_socket_hook is not global anymore. Let's pretend that | |
2293 | it's always set. */ | |
2294 | return !interrupt_input; | |
1d3195db RS |
2295 | #else |
2296 | return 0; | |
2297 | #endif | |
2298 | } | |
2299 | ||
284f4730 JB |
2300 | /* Turn off polling. */ |
2301 | ||
07a59269 | 2302 | void |
284f4730 JB |
2303 | stop_polling () |
2304 | { | |
2305 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2306 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2307 | but read_socket_hook is not global anymore. Let's pretend that | |
2308 | it's always set. */ | |
2309 | if (!interrupt_input) | |
8a9f5d3c | 2310 | ++poll_suppress_count; |
284f4730 JB |
2311 | #endif |
2312 | } | |
fe8aeef3 RS |
2313 | |
2314 | /* Set the value of poll_suppress_count to COUNT | |
2315 | and start or stop polling accordingly. */ | |
2316 | ||
2317 | void | |
2318 | set_poll_suppress_count (count) | |
2319 | int count; | |
2320 | { | |
2321 | #ifdef POLL_FOR_INPUT | |
2322 | if (count == 0 && poll_suppress_count != 0) | |
2323 | { | |
2324 | poll_suppress_count = 1; | |
2325 | start_polling (); | |
2326 | } | |
2327 | else if (count != 0 && poll_suppress_count == 0) | |
2328 | { | |
2329 | stop_polling (); | |
2330 | } | |
2331 | poll_suppress_count = count; | |
2332 | #endif | |
2333 | } | |
f4eef8b4 | 2334 | |
d0a57728 RS |
2335 | /* Bind polling_period to a value at least N. |
2336 | But don't decrease it. */ | |
2337 | ||
07a59269 | 2338 | void |
f4eef8b4 RS |
2339 | bind_polling_period (n) |
2340 | int n; | |
2341 | { | |
2342 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2343 | int new = polling_period; |
2344 | ||
2345 | if (n > new) | |
2346 | new = n; | |
2347 | ||
6fe007f7 | 2348 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2349 | stop_polling (); |
d0a57728 RS |
2350 | specbind (Qpolling_period, make_number (new)); |
2351 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2352 | start_polling (); |
2353 | #endif | |
2354 | } | |
284f4730 | 2355 | \f |
6da3dd3a RS |
2356 | /* Apply the control modifier to CHARACTER. */ |
2357 | ||
faf5e407 JB |
2358 | int |
2359 | make_ctrl_char (c) | |
2360 | int c; | |
2361 | { | |
d205953b JB |
2362 | /* Save the upper bits here. */ |
2363 | int upper = c & ~0177; | |
2364 | ||
a32aad64 KH |
2365 | if (! ASCII_BYTE_P (c)) |
2366 | return c |= ctrl_modifier; | |
2367 | ||
d205953b JB |
2368 | c &= 0177; |
2369 | ||
2370 | /* Everything in the columns containing the upper-case letters | |
2371 | denotes a control character. */ | |
2372 | if (c >= 0100 && c < 0140) | |
2373 | { | |
2374 | int oc = c; | |
2375 | c &= ~0140; | |
2376 | /* Set the shift modifier for a control char | |
2377 | made from a shifted letter. But only for letters! */ | |
2378 | if (oc >= 'A' && oc <= 'Z') | |
2379 | c |= shift_modifier; | |
2380 | } | |
2381 | ||
2382 | /* The lower-case letters denote control characters too. */ | |
2383 | else if (c >= 'a' && c <= 'z') | |
2384 | c &= ~0140; | |
2385 | ||
2386 | /* Include the bits for control and shift | |
2387 | only if the basic ASCII code can't indicate them. */ | |
2388 | else if (c >= ' ') | |
2389 | c |= ctrl_modifier; | |
2390 | ||
2391 | /* Replace the high bits. */ | |
2392 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2393 | |
2394 | return c; | |
2395 | } | |
2396 | ||
bb8c4865 RS |
2397 | /* Display the help-echo property of the character after the mouse pointer. |
2398 | Either show it in the echo area, or call show-help-function to display | |
2399 | it by other means (maybe in a tooltip). | |
d4e68eea | 2400 | |
bb8c4865 | 2401 | If HELP is nil, that means clear the previous help echo. |
d4e68eea | 2402 | |
bb8c4865 RS |
2403 | If HELP is a string, display that string. If HELP is a function, |
2404 | call it with OBJECT and POS as arguments; the function should | |
2405 | return a help string or nil for none. For all other types of HELP, | |
2406 | evaluate it to obtain a string. | |
8dfd92c9 | 2407 | |
2190735a GM |
2408 | WINDOW is the window in which the help was generated, if any. |
2409 | It is nil if not in a window. | |
2410 | ||
5b2ec2d0 GM |
2411 | If OBJECT is a buffer, POS is the position in the buffer where the |
2412 | `help-echo' text property was found. | |
2413 | ||
2414 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2415 | and POS is the position in the overlay's buffer under the mouse. | |
2416 | ||
2417 | If OBJECT is a string (an overlay string or a string displayed with | |
2418 | the `display' property). POS is the position in that string under | |
2419 | the mouse. | |
d4e68eea | 2420 | |
27fd22dc | 2421 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2422 | echo overwrites a keystroke echo currently displayed in the echo |
2423 | area. | |
2424 | ||
8dfd92c9 GM |
2425 | Note: this function may only be called with HELP nil or a string |
2426 | from X code running asynchronously. */ | |
d4e68eea | 2427 | |
31f84d03 | 2428 | void |
2190735a GM |
2429 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2430 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2431 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2432 | { |
8dfd92c9 | 2433 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2434 | { |
8dfd92c9 GM |
2435 | if (FUNCTIONP (help)) |
2436 | { | |
2190735a | 2437 | Lisp_Object args[4]; |
8dfd92c9 | 2438 | args[0] = help; |
2190735a GM |
2439 | args[1] = window; |
2440 | args[2] = object; | |
2441 | args[3] = pos; | |
1db0076e | 2442 | help = safe_call (4, args); |
8dfd92c9 GM |
2443 | } |
2444 | else | |
1db0076e | 2445 | help = safe_eval (help); |
c60ee5e7 | 2446 | |
8dfd92c9 | 2447 | if (!STRINGP (help)) |
d4e68eea | 2448 | return; |
31f84d03 SM |
2449 | } |
2450 | ||
ae372f41 | 2451 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 | 2452 | if (!noninteractive && STRINGP (help)) |
c5b76d6c CY |
2453 | { |
2454 | /* The mouse-fixup-help-message Lisp function can call | |
2455 | mouse_position_hook, which resets the mouse_moved flags. | |
2456 | This causes trouble if we are trying to read a mouse motion | |
2457 | event (i.e., if we are inside a `track-mouse' form), so we | |
2458 | restore the mouse_moved flag. */ | |
2459 | FRAME_PTR f = NILP (do_mouse_tracking) ? NULL : some_mouse_moved (); | |
2460 | help = call1 (Qmouse_fixup_help_message, help); | |
2461 | if (f) | |
2462 | f->mouse_moved = 1; | |
2463 | } | |
c22237f7 KS |
2464 | #endif |
2465 | ||
8dfd92c9 | 2466 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2467 | { |
2468 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2469 | call1 (Vshow_help_function, help); |
5295a500 | 2470 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2471 | } |
31f84d03 SM |
2472 | } |
2473 | ||
faf5e407 JB |
2474 | |
2475 | \f | |
284f4730 JB |
2476 | /* Input of single characters from keyboard */ |
2477 | ||
2478 | Lisp_Object print_help (); | |
2479 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2480 | static void record_char (); |
284f4730 | 2481 | |
638d3da0 CY |
2482 | static Lisp_Object help_form_saved_window_configs; |
2483 | static Lisp_Object | |
63c125ab | 2484 | read_char_help_form_unwind (Lisp_Object arg) |
638d3da0 CY |
2485 | { |
2486 | Lisp_Object window_config = XCAR (help_form_saved_window_configs); | |
2487 | help_form_saved_window_configs = XCDR (help_form_saved_window_configs); | |
2488 | if (!NILP (window_config)) | |
2489 | Fset_window_configuration (window_config); | |
2490 | return Qnil; | |
2491 | } | |
2492 | ||
184c3d81 RS |
2493 | #define STOP_POLLING \ |
2494 | do { if (! polling_stopped_here) stop_polling (); \ | |
2495 | polling_stopped_here = 1; } while (0) | |
2496 | ||
2497 | #define RESUME_POLLING \ | |
2498 | do { if (polling_stopped_here) start_polling (); \ | |
2499 | polling_stopped_here = 0; } while (0) | |
2500 | ||
284f4730 JB |
2501 | /* read a character from the keyboard; call the redisplay if needed */ |
2502 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2503 | -1 means do not do redisplay, but do do autosaving. | |
2504 | 1 means do both. */ | |
2505 | ||
7d6de002 RS |
2506 | /* The arguments MAPS and NMAPS are for menu prompting. |
2507 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2508 | ||
2509 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2510 | the first event of a key sequence (or not reading a key sequence). |
2511 | If PREV_EVENT is t, that is a "magic" value that says | |
2512 | not to run input methods, but in other respects to act as if | |
2513 | not reading a key sequence. | |
7d6de002 | 2514 | |
83d68044 | 2515 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2516 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2517 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 | 2518 | |
9688ff53 | 2519 | Value is -2 when we find input on another keyboard. A second call |
033b73e2 | 2520 | to read_char will read it. |
9688ff53 | 2521 | |
179f689c CY |
2522 | If END_TIME is non-null, it is a pointer to an EMACS_TIME |
2523 | specifying the maximum time to wait until. If no input arrives by | |
2524 | that time, stop waiting and return nil. | |
2525 | ||
dcc408a0 | 2526 | Value is t if we showed a menu and the user rejected it. */ |
7d6de002 | 2527 | |
284f4730 | 2528 | Lisp_Object |
179f689c | 2529 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu, end_time) |
284f4730 | 2530 | int commandflag; |
7d6de002 RS |
2531 | int nmaps; |
2532 | Lisp_Object *maps; | |
2533 | Lisp_Object prev_event; | |
2534 | int *used_mouse_menu; | |
179f689c | 2535 | EMACS_TIME *end_time; |
284f4730 | 2536 | { |
8c907a56 | 2537 | volatile Lisp_Object c; |
092869b9 | 2538 | int count, jmpcount; |
410d4de9 | 2539 | jmp_buf local_getcjmp; |
284f4730 | 2540 | jmp_buf save_jump; |
8c907a56 | 2541 | volatile int key_already_recorded = 0; |
017c7cb6 | 2542 | Lisp_Object tem, save; |
8c907a56 GM |
2543 | volatile Lisp_Object previous_echo_area_message; |
2544 | volatile Lisp_Object also_record; | |
2545 | volatile int reread; | |
d5eecefb | 2546 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2547 | int polling_stopped_here = 0; |
b3e6f69c | 2548 | struct kboard *orig_kboard = current_kboard; |
7c3bc944 | 2549 | |
e4fe371d | 2550 | also_record = Qnil; |
284f4730 | 2551 | |
22b94eeb | 2552 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2553 | before_command_key_count = this_command_key_count; |
2554 | before_command_echo_length = echo_length (); | |
22b94eeb | 2555 | #endif |
ef6661f7 | 2556 | c = Qnil; |
7ee32cda | 2557 | previous_echo_area_message = Qnil; |
71918b75 | 2558 | |
7ee32cda | 2559 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2560 | |
7f07d5ca RS |
2561 | retry: |
2562 | ||
7d18f9ae RS |
2563 | reread = 0; |
2564 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2565 | { |
7539e11f | 2566 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2567 | Vunread_post_input_method_events |
7539e11f | 2568 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2569 | |
2479e91e RS |
2570 | /* Undo what read_char_x_menu_prompt did when it unread |
2571 | additional keys returned by Fx_popup_menu. */ | |
2572 | if (CONSP (c) | |
7539e11f KR |
2573 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2574 | && NILP (XCDR (c))) | |
2575 | c = XCAR (c); | |
2479e91e | 2576 | |
7d18f9ae RS |
2577 | reread = 1; |
2578 | goto reread_first; | |
284f4730 JB |
2579 | } |
2580 | ||
86e5706b RS |
2581 | if (unread_command_char != -1) |
2582 | { | |
18cd2eeb | 2583 | XSETINT (c, unread_command_char); |
86e5706b RS |
2584 | unread_command_char = -1; |
2585 | ||
7d18f9ae RS |
2586 | reread = 1; |
2587 | goto reread_first; | |
2588 | } | |
2589 | ||
2590 | if (CONSP (Vunread_command_events)) | |
2591 | { | |
a41240a3 MR |
2592 | int was_disabled = 0; |
2593 | ||
7539e11f KR |
2594 | c = XCAR (Vunread_command_events); |
2595 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae | 2596 | |
96f4f7ec KS |
2597 | reread = 1; |
2598 | ||
2599 | /* Undo what sit-for did when it unread additional keys | |
2600 | inside universal-argument. */ | |
2601 | ||
2602 | if (CONSP (c) | |
2603 | && EQ (XCAR (c), Qt)) | |
2604 | { | |
2605 | reread = 0; | |
2606 | c = XCDR (c); | |
2607 | } | |
2608 | ||
7d18f9ae RS |
2609 | /* Undo what read_char_x_menu_prompt did when it unread |
2610 | additional keys returned by Fx_popup_menu. */ | |
2611 | if (CONSP (c) | |
f4e05d97 GM |
2612 | && EQ (XCDR (c), Qdisabled) |
2613 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
a41240a3 MR |
2614 | { |
2615 | was_disabled = 1; | |
2616 | c = XCAR (c); | |
2617 | } | |
c60ee5e7 | 2618 | |
d17e49a8 GM |
2619 | /* If the queued event is something that used the mouse, |
2620 | set used_mouse_menu accordingly. */ | |
2621 | if (used_mouse_menu | |
a41240a3 MR |
2622 | /* Also check was_disabled so last-nonmenu-event won't return |
2623 | a bad value when submenus are involved. (Bug#447) */ | |
2624 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar) || was_disabled)) | |
d17e49a8 | 2625 | *used_mouse_menu = 1; |
c60ee5e7 | 2626 | |
7d18f9ae RS |
2627 | goto reread_for_input_method; |
2628 | } | |
2629 | ||
2630 | if (CONSP (Vunread_input_method_events)) | |
2631 | { | |
7539e11f KR |
2632 | c = XCAR (Vunread_input_method_events); |
2633 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2634 | |
2635 | /* Undo what read_char_x_menu_prompt did when it unread | |
2636 | additional keys returned by Fx_popup_menu. */ | |
2637 | if (CONSP (c) | |
7539e11f KR |
2638 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2639 | && NILP (XCDR (c))) | |
2640 | c = XCAR (c); | |
7d18f9ae RS |
2641 | reread = 1; |
2642 | goto reread_for_input_method; | |
86e5706b RS |
2643 | } |
2644 | ||
63020c46 RS |
2645 | this_command_key_count_reset = 0; |
2646 | ||
ce0d2858 | 2647 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2648 | { |
fce33686 JB |
2649 | /* We set this to Qmacro; since that's not a frame, nobody will |
2650 | try to switch frames on us, and the selected window will | |
2651 | remain unchanged. | |
2652 | ||
2653 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2654 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2655 | real event came from. Normally, a switch-frame event selects |
2656 | internal_last_event_frame after each command is read, but | |
2657 | events read from a macro should never cause a new frame to be | |
2658 | selected. */ | |
4c52b668 | 2659 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2660 | |
663258f2 JB |
2661 | /* Exit the macro if we are at the end. |
2662 | Also, some things replace the macro with t | |
2663 | to force an early exit. */ | |
ce0d2858 | 2664 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2665 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2666 | { |
18cd2eeb | 2667 | XSETINT (c, -1); |
184c3d81 | 2668 | goto exit; |
284f4730 | 2669 | } |
df0f2ba1 | 2670 | |
649d952d | 2671 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2672 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2673 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2674 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2675 | |
649d952d | 2676 | executing_kbd_macro_index++; |
284f4730 JB |
2677 | |
2678 | goto from_macro; | |
2679 | } | |
2680 | ||
cd21b839 JB |
2681 | if (!NILP (unread_switch_frame)) |
2682 | { | |
2683 | c = unread_switch_frame; | |
2684 | unread_switch_frame = Qnil; | |
2685 | ||
2686 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2687 | again, so we do not set `reread'. */ |
f4255cd1 | 2688 | goto reread_first; |
cd21b839 JB |
2689 | } |
2690 | ||
adc1d5c8 | 2691 | /* if redisplay was requested */ |
6e4e64a8 RS |
2692 | if (commandflag >= 0) |
2693 | { | |
0975aa24 | 2694 | int echo_current = EQ (echo_message_buffer, echo_area_buffer[0]); |
94f9b406 | 2695 | |
adc1d5c8 RS |
2696 | /* If there is pending input, process any events which are not |
2697 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2698 | if (input_pending |
2699 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2700 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2701 | |
adc1d5c8 RS |
2702 | /* Redisplay if no pending input. */ |
2703 | while (!input_pending) | |
2704 | { | |
5295a500 | 2705 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2706 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2707 | else |
2708 | redisplay (); | |
adc1d5c8 RS |
2709 | |
2710 | if (!input_pending) | |
2711 | /* Normal case: no input arrived during redisplay. */ | |
2712 | break; | |
2713 | ||
2714 | /* Input arrived and pre-empted redisplay. | |
2715 | Process any events which are not user-visible. */ | |
2716 | swallow_events (0); | |
2717 | /* If that cleared input_pending, try again to redisplay. */ | |
2718 | } | |
94f9b406 RS |
2719 | |
2720 | /* Prevent the redisplay we just did | |
2721 | from messing up echoing of the input after the prompt. */ | |
2722 | if (commandflag == 0 && echo_current) | |
2723 | echo_message_buffer = echo_area_buffer[0]; | |
2724 | ||
6e4e64a8 | 2725 | } |
e9bf89a0 | 2726 | |
59a84f8e | 2727 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2728 | |
59a84f8e GM |
2729 | The code in 20.x for the condition was |
2730 | ||
2731 | 1. echo_area_glyphs && *echo_area_glyphs | |
2732 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2733 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2734 | ||
2735 | (1) means there's a current message displayed | |
c60ee5e7 | 2736 | |
59a84f8e GM |
2737 | (2) means it's not the message from echoing from the current |
2738 | kboard. | |
c60ee5e7 | 2739 | |
59a84f8e GM |
2740 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2741 | is set to a non-null value. This is done in read_char and it is | |
2742 | set to echo_area_glyphs after a call to echo_char. That means | |
2743 | ok_to_echo_at_next_pause is either null or | |
2744 | current_kboard->echobuf with the appropriate current_kboard at | |
2745 | that time. | |
2746 | ||
2747 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2748 | must be either null, or the current message isn't from echoing at | |
2749 | all, or it's from echoing from a different kboard than the | |
2750 | current one. */ | |
c60ee5e7 | 2751 | |
27fd22dc | 2752 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2753 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2754 | && (/* And it's either not from echoing. */ |
2755 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2756 | /* Or it's an echo from a different kboard. */ | |
2757 | || echo_kboard != current_kboard | |
2758 | /* Or we explicitly allow overwriting whatever there is. */ | |
2759 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2760 | cancel_echoing (); |
410d4de9 | 2761 | else |
410d4de9 | 2762 | echo_dash (); |
c60ee5e7 | 2763 | |
410d4de9 RS |
2764 | /* Try reading a character via menu prompting in the minibuf. |
2765 | Try this before the sit-for, because the sit-for | |
2766 | would do the wrong thing if we are supposed to do | |
2767 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2768 | after a mouse event so don't try a minibuf menu. */ | |
2769 | c = Qnil; | |
2770 | if (nmaps > 0 && INTERACTIVE | |
2771 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2772 | /* Don't bring up a menu if we already have another event. */ | |
2773 | && NILP (Vunread_command_events) | |
2774 | && unread_command_char < 0 | |
4ec4ed6a | 2775 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2776 | { |
2777 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
9688ff53 KL |
2778 | |
2779 | if (INTEGERP (c) && XINT (c) == -2) | |
2780 | return c; /* wrong_kboard_jmpbuf */ | |
2781 | ||
410d4de9 RS |
2782 | if (! NILP (c)) |
2783 | { | |
2784 | key_already_recorded = 1; | |
2785 | goto non_reread_1; | |
2786 | } | |
2787 | } | |
284f4730 | 2788 | |
410d4de9 RS |
2789 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2790 | We will do that below, temporarily for short sections of code, | |
2791 | when appropriate. local_getcjmp must be in effect | |
2792 | around any call to sit_for or kbd_buffer_get_event; | |
2793 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2794 | |
092869b9 | 2795 | jmpcount = SPECPDL_INDEX (); |
410d4de9 | 2796 | if (_setjmp (local_getcjmp)) |
284f4730 | 2797 | { |
d6805803 | 2798 | /* Handle quits while reading the keyboard. */ |
dfbfad25 RS |
2799 | /* We must have saved the outer value of getcjmp here, |
2800 | so restore it now. */ | |
2801 | restore_getcjmp (save_jump); | |
092869b9 | 2802 | unbind_to (jmpcount, Qnil); |
18cd2eeb | 2803 | XSETINT (c, quit_char); |
788f89eb | 2804 | internal_last_event_frame = selected_frame; |
4c52b668 | 2805 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2806 | /* If we report the quit char as an event, |
2807 | don't do so more than once. */ | |
2808 | if (!NILP (Vinhibit_quit)) | |
2809 | Vquit_flag = Qnil; | |
284f4730 | 2810 | |
df0f2ba1 | 2811 | { |
788f89eb | 2812 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2813 | if (kb != current_kboard) |
df0f2ba1 | 2814 | { |
f3fbd155 | 2815 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2816 | /* We shouldn't get here if we were in single-kboard mode! */ |
2817 | if (single_kboard) | |
df0f2ba1 | 2818 | abort (); |
f3fbd155 KR |
2819 | if (CONSP (link)) |
2820 | { | |
2821 | while (CONSP (XCDR (link))) | |
2822 | link = XCDR (link); | |
2823 | if (!NILP (XCDR (link))) | |
2824 | abort (); | |
2825 | } | |
2826 | if (!CONSP (link)) | |
2827 | kb->kbd_queue = Fcons (c, Qnil); | |
2828 | else | |
2829 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2830 | kb->kbd_queue_has_data = 1; |
2831 | current_kboard = kb; | |
ef6661f7 RS |
2832 | /* This is going to exit from read_char |
2833 | so we had better get rid of this frame's stuff. */ | |
2834 | UNGCPRO; | |
9688ff53 | 2835 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
df0f2ba1 KH |
2836 | } |
2837 | } | |
284f4730 JB |
2838 | goto non_reread; |
2839 | } | |
2840 | ||
3236e6b8 CY |
2841 | /* Start idle timers if no time limit is supplied. We don't do it |
2842 | if a time limit is supplied to avoid an infinite recursion in the | |
2843 | situation where an idle timer calls `sit-for'. */ | |
70282fce | 2844 | |
3236e6b8 | 2845 | if (!end_time) |
70282fce | 2846 | timer_start_idle (); |
d9d4c147 | 2847 | |
284f4730 JB |
2848 | /* If in middle of key sequence and minibuffer not active, |
2849 | start echoing if enough time elapses. */ | |
410d4de9 | 2850 | |
c60ee5e7 | 2851 | if (minibuf_level == 0 |
179f689c | 2852 | && !end_time |
7ee32cda | 2853 | && !current_kboard->immediate_echo |
6c6083a9 | 2854 | && this_command_key_count > 0 |
27203ead | 2855 | && ! noninteractive |
f2647d04 DL |
2856 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2857 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2858 | && (/* No message. */ |
2859 | NILP (echo_area_buffer[0]) | |
2860 | /* Or empty message. */ | |
2861 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2862 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2863 | /* Or already echoing from same kboard. */ | |
2864 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2865 | /* Or not echoing before and echoing allowed. */ | |
2866 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 | 2867 | { |
7d6de002 RS |
2868 | /* After a mouse event, start echoing right away. |
2869 | This is because we are probably about to display a menu, | |
2870 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2871 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2872 | echo_now (); |
7d6de002 RS |
2873 | else |
2874 | { | |
666dc232 KS |
2875 | Lisp_Object tem0; |
2876 | ||
410d4de9 RS |
2877 | save_getcjmp (save_jump); |
2878 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2879 | tem0 = sit_for (Vecho_keystrokes, 1, 1); |
410d4de9 | 2880 | restore_getcjmp (save_jump); |
303b5b3f RS |
2881 | if (EQ (tem0, Qt) |
2882 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2883 | echo_now (); |
7d6de002 | 2884 | } |
284f4730 JB |
2885 | } |
2886 | ||
410d4de9 | 2887 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2888 | |
2889 | if (commandflag != 0 | |
2890 | && auto_save_interval > 0 | |
c43b1734 | 2891 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2892 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2893 | { |
284f4730 | 2894 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2895 | /* Hooks can actually change some buffers in auto save. */ |
2896 | redisplay (); | |
284f4730 JB |
2897 | } |
2898 | ||
8150596a | 2899 | /* Try reading using an X menu. |
24597608 RS |
2900 | This is never confused with reading using the minibuf |
2901 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2902 | does not pass on any keymaps. */ | |
410d4de9 | 2903 | |
24597608 | 2904 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2905 | && !NILP (prev_event) |
2906 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2907 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2908 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2909 | /* Don't bring up a menu if we already have another event. */ |
2910 | && NILP (Vunread_command_events) | |
b8556aee | 2911 | && unread_command_char < 0) |
8eb4d8ef RS |
2912 | { |
2913 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2914 | ||
2915 | /* Now that we have read an event, Emacs is not idle. */ | |
3236e6b8 CY |
2916 | if (!end_time) |
2917 | timer_stop_idle (); | |
8eb4d8ef | 2918 | |
184c3d81 | 2919 | goto exit; |
8eb4d8ef | 2920 | } |
7d6de002 | 2921 | |
410d4de9 RS |
2922 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2923 | ||
26c1639e | 2924 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2925 | { |
2926 | int delay_level, buffer_size; | |
2927 | ||
410d4de9 RS |
2928 | /* Slow down auto saves logarithmically in size of current buffer, |
2929 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2930 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2931 | last_non_minibuf_size = Z - BEG; | |
2932 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2933 | delay_level = 0; | |
2934 | while (buffer_size > 64) | |
2935 | delay_level++, buffer_size -= buffer_size >> 2; | |
2936 | if (delay_level < 4) delay_level = 4; | |
2937 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2938 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2939 | ||
2940 | /* Auto save if enough time goes by without input. */ | |
2941 | if (commandflag != 0 | |
c43b1734 | 2942 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2943 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2944 | && XINT (Vauto_save_timeout) > 0) |
2945 | { | |
2946 | Lisp_Object tem0; | |
666dc232 | 2947 | int timeout = delay_level * XFASTINT (Vauto_save_timeout) / 4; |
410d4de9 RS |
2948 | |
2949 | save_getcjmp (save_jump); | |
2950 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2951 | tem0 = sit_for (make_number (timeout), 1, 1); |
410d4de9 RS |
2952 | restore_getcjmp (save_jump); |
2953 | ||
303b5b3f RS |
2954 | if (EQ (tem0, Qt) |
2955 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2956 | { |
7d6de002 | 2957 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2958 | |
2959 | /* If we have auto-saved and there is still no input | |
2960 | available, garbage collect if there has been enough | |
2961 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2962 | if (!detect_input_pending_run_timers (0) |
c8e16a02 | 2963 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2964 | Fgarbage_collect (); |
410d4de9 | 2965 | |
ef8fd672 | 2966 | redisplay (); |
7d6de002 RS |
2967 | } |
2968 | } | |
2969 | } | |
284f4730 | 2970 | |
67ddbec3 KL |
2971 | /* Notify the caller if an autosave hook, or a timer, sentinel or |
2972 | filter in the sit_for calls above have changed the current | |
2973 | kboard. This could happen if they use the minibuffer or start a | |
2974 | recursive edit, like the fancy splash screen in server.el's | |
2975 | filter. If this longjmp wasn't here, read_key_sequence would | |
2976 | interpret the next key sequence using the wrong translation | |
2977 | tables and function keymaps. */ | |
b3e6f69c KL |
2978 | if (NILP (c) && current_kboard != orig_kboard) |
2979 | { | |
2980 | UNGCPRO; | |
9688ff53 | 2981 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
b3e6f69c KL |
2982 | } |
2983 | ||
303b5b3f RS |
2984 | /* If this has become non-nil here, it has been set by a timer |
2985 | or sentinel or filter. */ | |
2986 | if (CONSP (Vunread_command_events)) | |
2987 | { | |
7539e11f KR |
2988 | c = XCAR (Vunread_command_events); |
2989 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2990 | } |
2991 | ||
410d4de9 RS |
2992 | /* Read something from current KBOARD's side queue, if possible. */ |
2993 | ||
beecf6a1 | 2994 | if (NILP (c)) |
1e12dd87 | 2995 | { |
c5fdd383 | 2996 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2997 | { |
c5fdd383 | 2998 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2999 | abort (); |
7539e11f | 3000 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 3001 | current_kboard->kbd_queue |
7539e11f | 3002 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
3003 | if (NILP (current_kboard->kbd_queue)) |
3004 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 3005 | input_pending = readable_events (0); |
4c52b668 KH |
3006 | if (EVENT_HAS_PARAMETERS (c) |
3007 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 3008 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 3009 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 3010 | } |
1e8bd3da RS |
3011 | } |
3012 | ||
1e8bd3da RS |
3013 | /* If current_kboard's side queue is empty check the other kboards. |
3014 | If one of them has data that we have not yet seen here, | |
3015 | switch to it and process the data waiting for it. | |
3016 | ||
3017 | Note: if the events queued up for another kboard | |
3018 | have already been seen here, and therefore are not a complete command, | |
3019 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
3020 | That's to avoid an infinite loop switching between kboards here. */ | |
3021 | if (NILP (c) && !single_kboard) | |
3022 | { | |
3023 | KBOARD *kb; | |
3024 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3025 | if (kb->kbd_queue_has_data) | |
3026 | { | |
3027 | current_kboard = kb; | |
ef6661f7 RS |
3028 | /* This is going to exit from read_char |
3029 | so we had better get rid of this frame's stuff. */ | |
3030 | UNGCPRO; | |
9688ff53 | 3031 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
1e8bd3da RS |
3032 | } |
3033 | } | |
df0f2ba1 | 3034 | |
410d4de9 RS |
3035 | wrong_kboard: |
3036 | ||
184c3d81 | 3037 | STOP_POLLING; |
410d4de9 | 3038 | |
1e8bd3da RS |
3039 | /* Finally, we read from the main queue, |
3040 | and if that gives us something we can't use yet, we put it on the | |
3041 | appropriate side queue and try again. */ | |
410d4de9 | 3042 | |
1e8bd3da RS |
3043 | if (NILP (c)) |
3044 | { | |
3045 | KBOARD *kb; | |
3046 | ||
179f689c CY |
3047 | if (end_time) |
3048 | { | |
3049 | EMACS_TIME now; | |
3050 | EMACS_GET_TIME (now); | |
3051 | if (EMACS_TIME_GE (now, *end_time)) | |
3052 | goto exit; | |
3053 | } | |
3054 | ||
1e8bd3da | 3055 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
3056 | save_getcjmp (save_jump); |
3057 | restore_getcjmp (local_getcjmp); | |
3236e6b8 | 3058 | if (!end_time) |
70282fce | 3059 | timer_start_idle (); |
179f689c | 3060 | c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time); |
410d4de9 RS |
3061 | restore_getcjmp (save_jump); |
3062 | ||
410d4de9 | 3063 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 3064 | { |
f3fbd155 KR |
3065 | Lisp_Object link = kb->kbd_queue; |
3066 | if (CONSP (link)) | |
3067 | { | |
3068 | while (CONSP (XCDR (link))) | |
3069 | link = XCDR (link); | |
3070 | if (!NILP (XCDR (link))) | |
3071 | abort (); | |
3072 | } | |
3073 | if (!CONSP (link)) | |
3074 | kb->kbd_queue = Fcons (c, Qnil); | |
3075 | else | |
3076 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 3077 | kb->kbd_queue_has_data = 1; |
46b84797 | 3078 | c = Qnil; |
1e8bd3da RS |
3079 | if (single_kboard) |
3080 | goto wrong_kboard; | |
3081 | current_kboard = kb; | |
ef6661f7 RS |
3082 | /* This is going to exit from read_char |
3083 | so we had better get rid of this frame's stuff. */ | |
3084 | UNGCPRO; | |
9688ff53 | 3085 | return make_number (-2); |
df0f2ba1 | 3086 | } |
beecf6a1 | 3087 | } |
1e8bd3da | 3088 | |
284f4730 | 3089 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 3090 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
3091 | Fkill_emacs (make_number (1)); |
3092 | ||
8c18cbfb | 3093 | if (INTEGERP (c)) |
80645119 JB |
3094 | { |
3095 | /* Add in any extra modifiers, where appropriate. */ | |
3096 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
3097 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
3098 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 3099 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
3100 | |
3101 | /* Transfer any other modifier bits directly from | |
3102 | extra_keyboard_modifiers to c. Ignore the actual character code | |
3103 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 3104 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 3105 | } |
9fa4395d | 3106 | |
284f4730 JB |
3107 | non_reread: |
3108 | ||
3236e6b8 CY |
3109 | if (!end_time) |
3110 | timer_stop_idle (); | |
184c3d81 | 3111 | RESUME_POLLING; |
284f4730 | 3112 | |
410d4de9 RS |
3113 | if (NILP (c)) |
3114 | { | |
3115 | if (commandflag >= 0 | |
4ec4ed6a | 3116 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
3117 | redisplay (); |
3118 | ||
3119 | goto wrong_kboard; | |
3120 | } | |
3121 | ||
3122 | non_reread_1: | |
3123 | ||
dfd11da7 | 3124 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
3125 | so don't show them to the user. |
3126 | Also, don't record a key if we already did. */ | |
3127 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 3128 | goto exit; |
a1341f75 | 3129 | |
7f07d5ca RS |
3130 | /* Process special events within read_char |
3131 | and loop around to read another event. */ | |
017c7cb6 RS |
3132 | save = Vquit_flag; |
3133 | Vquit_flag = Qnil; | |
02067692 | 3134 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 3135 | Vquit_flag = save; |
7f07d5ca RS |
3136 | |
3137 | if (!NILP (tem)) | |
3138 | { | |
b3e6f69c | 3139 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 | 3140 | int was_locked = single_kboard; |
b3e6f69c KL |
3141 | int count = SPECPDL_INDEX (); |
3142 | record_single_kboard_state (); | |
3143 | #endif | |
033b73e2 | 3144 | |
4b09796d GM |
3145 | last_input_event = c; |
3146 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_event), Qt); | |
ba8dfba8 | 3147 | |
3236e6b8 | 3148 | if (CONSP (c) && EQ (XCAR (c), Qselect_window) && !end_time) |
5d12f14d EZ |
3149 | /* We stopped being idle for this event; undo that. This |
3150 | prevents automatic window selection (under | |
0b9a1d3d | 3151 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 3152 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 3153 | timer_resume_idle (); |
5d12f14d | 3154 | |
b3e6f69c | 3155 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 RS |
3156 | /* Resume allowing input from any kboard, if that was true before. */ |
3157 | if (!was_locked) | |
3158 | any_kboard_state (); | |
b3e6f69c KL |
3159 | unbind_to (count, Qnil); |
3160 | #endif | |
ba8dfba8 | 3161 | |
7f07d5ca RS |
3162 | goto retry; |
3163 | } | |
3164 | ||
284f4730 | 3165 | /* Handle things that only apply to characters. */ |
8c18cbfb | 3166 | if (INTEGERP (c)) |
284f4730 JB |
3167 | { |
3168 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 3169 | if (XINT (c) == -1) |
184c3d81 | 3170 | goto exit; |
284f4730 | 3171 | |
2e478293 KL |
3172 | if ((STRINGP (current_kboard->Vkeyboard_translate_table) |
3173 | && SCHARS (current_kboard->Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) | |
3174 | || (VECTORP (current_kboard->Vkeyboard_translate_table) | |
3175 | && XVECTOR (current_kboard->Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
3176 | || (CHAR_TABLE_P (current_kboard->Vkeyboard_translate_table) | |
dbcf4347 | 3177 | && CHARACTERP (c))) |
f9414d62 RS |
3178 | { |
3179 | Lisp_Object d; | |
2e478293 | 3180 | d = Faref (current_kboard->Vkeyboard_translate_table, c); |
f9414d62 RS |
3181 | /* nil in keyboard-translate-table means no translation. */ |
3182 | if (!NILP (d)) | |
3183 | c = d; | |
3184 | } | |
284f4730 JB |
3185 | } |
3186 | ||
e4fe371d RS |
3187 | /* If this event is a mouse click in the menu bar, |
3188 | return just menu-bar for now. Modify the mouse click event | |
3189 | so we won't do this twice, then queue it up. */ | |
3190 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 3191 | && CONSP (XCDR (c)) |
e4fe371d | 3192 | && CONSP (EVENT_START (c)) |
7539e11f | 3193 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 3194 | { |
e4fe371d | 3195 | Lisp_Object posn; |
284f4730 | 3196 | |
6b61353c | 3197 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
3198 | /* Handle menu-bar events: |
3199 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 3200 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
3201 | { |
3202 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
6b61353c | 3203 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 3204 | |
e4fe371d RS |
3205 | also_record = c; |
3206 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
3207 | c = posn; | |
284f4730 | 3208 | } |
284f4730 JB |
3209 | } |
3210 | ||
7d18f9ae RS |
3211 | /* Store these characters into recent_keys, the dribble file if any, |
3212 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
3213 | record_char (c); |
3214 | if (! NILP (also_record)) | |
3215 | record_char (also_record); | |
51172b6d | 3216 | |
d5eecefb RS |
3217 | /* Wipe the echo area. |
3218 | But first, if we are about to use an input method, | |
3219 | save the echo area contents for it to refer to. */ | |
3220 | if (INTEGERP (c) | |
3221 | && ! NILP (Vinput_method_function) | |
3222 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
3223 | && (unsigned) XINT (c) != 127 |
3224 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
3225 | { |
3226 | previous_echo_area_message = Fcurrent_message (); | |
3227 | Vinput_method_previous_message = previous_echo_area_message; | |
3228 | } | |
d5eecefb | 3229 | |
1172eb8d GM |
3230 | /* Now wipe the echo area, except for help events which do their |
3231 | own stuff with the echo area. */ | |
4d2e9f95 GM |
3232 | if (!CONSP (c) |
3233 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
3234 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
3235 | { |
3236 | if (!NILP (echo_area_buffer[0])) | |
3237 | safe_run_hooks (Qecho_area_clear_hook); | |
3238 | clear_message (1, 0); | |
3239 | } | |
d5eecefb | 3240 | |
7d18f9ae | 3241 | reread_for_input_method: |
284f4730 | 3242 | from_macro: |
7d18f9ae | 3243 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
3244 | if (INTEGERP (c) |
3245 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
3246 | /* Don't run the input method within a key sequence, |
3247 | after the first event of the key sequence. */ | |
3248 | && NILP (prev_event) | |
d5eecefb | 3249 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
3250 | && (unsigned) XINT (c) != 127 |
3251 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3252 | { |
c60ee5e7 | 3253 | Lisp_Object keys; |
63020c46 | 3254 | int key_count, key_count_reset; |
d5eecefb | 3255 | struct gcpro gcpro1; |
aed13378 | 3256 | int count = SPECPDL_INDEX (); |
d5eecefb | 3257 | |
6e5742a0 RS |
3258 | /* Save the echo status. */ |
3259 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3260 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 3261 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
3262 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3263 | ||
22b94eeb | 3264 | #if 0 |
6e5742a0 RS |
3265 | if (before_command_restore_flag) |
3266 | { | |
3267 | this_command_key_count = before_command_key_count_1; | |
3268 | if (this_command_key_count < this_single_command_key_start) | |
3269 | this_single_command_key_start = this_command_key_count; | |
3270 | echo_truncate (before_command_echo_length_1); | |
3271 | before_command_restore_flag = 0; | |
3272 | } | |
22b94eeb | 3273 | #endif |
6e5742a0 RS |
3274 | |
3275 | /* Save the this_command_keys status. */ | |
3276 | key_count = this_command_key_count; | |
63020c46 | 3277 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3278 | |
3279 | if (key_count > 0) | |
3280 | keys = Fcopy_sequence (this_command_keys); | |
3281 | else | |
3282 | keys = Qnil; | |
d5eecefb | 3283 | GCPRO1 (keys); |
6e5742a0 RS |
3284 | |
3285 | /* Clear out this_command_keys. */ | |
3286 | this_command_key_count = 0; | |
63020c46 | 3287 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3288 | |
3289 | /* Now wipe the echo area. */ | |
985f9f66 | 3290 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3291 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3292 | clear_message (1, 0); |
6e5742a0 RS |
3293 | echo_truncate (0); |
3294 | ||
b638f328 RS |
3295 | /* If we are not reading a key sequence, |
3296 | never use the echo area. */ | |
3297 | if (maps == 0) | |
3298 | { | |
b638f328 RS |
3299 | specbind (Qinput_method_use_echo_area, Qt); |
3300 | } | |
3301 | ||
6e5742a0 | 3302 | /* Call the input method. */ |
d5eecefb | 3303 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3304 | |
3305 | tem = unbind_to (count, tem); | |
3306 | ||
6e5742a0 RS |
3307 | /* Restore the saved echoing state |
3308 | and this_command_keys state. */ | |
3309 | this_command_key_count = key_count; | |
63020c46 | 3310 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3311 | if (key_count > 0) |
3312 | this_command_keys = keys; | |
3313 | ||
3314 | cancel_echoing (); | |
3315 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 3316 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
3317 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
3318 | if (saved_immediate_echo) | |
3319 | echo_now (); | |
3320 | ||
d5eecefb | 3321 | UNGCPRO; |
6e5742a0 | 3322 | |
d5eecefb RS |
3323 | /* The input method can return no events. */ |
3324 | if (! CONSP (tem)) | |
7d18f9ae | 3325 | { |
d5eecefb | 3326 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3327 | if (! NILP (previous_echo_area_message)) |
3328 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3329 | goto retry; |
7d18f9ae | 3330 | } |
d5eecefb | 3331 | /* It returned one event or more. */ |
7539e11f | 3332 | c = XCAR (tem); |
d5eecefb | 3333 | Vunread_post_input_method_events |
7539e11f | 3334 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3335 | } |
7c3bc944 | 3336 | |
7d18f9ae | 3337 | reread_first: |
284f4730 | 3338 | |
7ee32cda | 3339 | /* Display help if not echoing. */ |
1172eb8d | 3340 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3341 | { |
2190735a | 3342 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3343 | Lisp_Object help, object, position, window, tem; |
3344 | ||
3345 | tem = Fcdr (XCDR (c)); | |
3346 | help = Fcar (tem); | |
3347 | tem = Fcdr (tem); | |
3348 | window = Fcar (tem); | |
3349 | tem = Fcdr (tem); | |
3350 | object = Fcar (tem); | |
3351 | tem = Fcdr (tem); | |
3352 | position = Fcar (tem); | |
3353 | ||
2190735a | 3354 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3355 | |
3356 | /* We stopped being idle for this event; undo that. */ | |
3236e6b8 CY |
3357 | if (!end_time) |
3358 | timer_resume_idle (); | |
7ee32cda GM |
3359 | goto retry; |
3360 | } | |
c60ee5e7 | 3361 | |
4c0240d2 RS |
3362 | if ((! reread || this_command_key_count == 0 |
3363 | || this_command_key_count_reset) | |
3364 | && !end_time) | |
e4fe371d | 3365 | { |
7d18f9ae RS |
3366 | |
3367 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3368 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3369 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3370 | && ! (EVENT_HAS_PARAMETERS (c) |
3371 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3372 | { | |
3373 | echo_char (c); | |
3374 | if (! NILP (also_record)) | |
3375 | echo_char (also_record); | |
3376 | /* Once we reread a character, echoing can happen | |
3377 | the next time we pause to read a new one. */ | |
985f9f66 | 3378 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3379 | } |
3380 | ||
3381 | /* Record this character as part of the current key. */ | |
3382 | add_command_key (c); | |
e4fe371d | 3383 | if (! NILP (also_record)) |
7d18f9ae | 3384 | add_command_key (also_record); |
e4fe371d | 3385 | } |
b8556aee | 3386 | |
4b09796d | 3387 | last_input_event = c; |
c43b1734 | 3388 | num_input_events++; |
284f4730 JB |
3389 | |
3390 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3391 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3392 | { |
3393 | Lisp_Object tem0; | |
aed13378 | 3394 | count = SPECPDL_INDEX (); |
284f4730 | 3395 | |
638d3da0 CY |
3396 | help_form_saved_window_configs |
3397 | = Fcons (Fcurrent_window_configuration (Qnil), | |
3398 | help_form_saved_window_configs); | |
3399 | record_unwind_protect (read_char_help_form_unwind, Qnil); | |
284f4730 JB |
3400 | |
3401 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3402 | if (STRINGP (tem0)) |
284f4730 JB |
3403 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3404 | ||
3405 | cancel_echoing (); | |
3cb81011 | 3406 | do |
638d3da0 CY |
3407 | { |
3408 | c = read_char (0, 0, 0, Qnil, 0, NULL); | |
3409 | if (EVENT_HAS_PARAMETERS (c) | |
3410 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_click)) | |
3411 | XSETCAR (help_form_saved_window_configs, Qnil); | |
3412 | } | |
8c18cbfb | 3413 | while (BUFFERP (c)); |
ff11dfa1 | 3414 | /* Remove the help from the frame */ |
284f4730 | 3415 | unbind_to (count, Qnil); |
410d4de9 | 3416 | |
284f4730 JB |
3417 | redisplay (); |
3418 | if (EQ (c, make_number (040))) | |
3419 | { | |
3420 | cancel_echoing (); | |
3cb81011 | 3421 | do |
179f689c | 3422 | c = read_char (0, 0, 0, Qnil, 0, NULL); |
8c18cbfb | 3423 | while (BUFFERP (c)); |
284f4730 JB |
3424 | } |
3425 | } | |
3426 | ||
184c3d81 RS |
3427 | exit: |
3428 | RESUME_POLLING; | |
7c3bc944 | 3429 | RETURN_UNGCPRO (c); |
284f4730 JB |
3430 | } |
3431 | ||
8eb4d8ef RS |
3432 | /* Record a key that came from a mouse menu. |
3433 | Record it for echoing, for this-command-keys, and so on. */ | |
3434 | ||
3435 | static void | |
3436 | record_menu_key (c) | |
3437 | Lisp_Object c; | |
3438 | { | |
3439 | /* Wipe the echo area. */ | |
985f9f66 | 3440 | clear_message (1, 0); |
8eb4d8ef RS |
3441 | |
3442 | record_char (c); | |
3443 | ||
22b94eeb | 3444 | #if 0 |
8eb4d8ef RS |
3445 | before_command_key_count = this_command_key_count; |
3446 | before_command_echo_length = echo_length (); | |
22b94eeb | 3447 | #endif |
8eb4d8ef RS |
3448 | |
3449 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3450 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3451 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3452 | { |
3453 | echo_char (c); | |
3454 | ||
3455 | /* Once we reread a character, echoing can happen | |
3456 | the next time we pause to read a new one. */ | |
3457 | ok_to_echo_at_next_pause = 0; | |
3458 | } | |
3459 | ||
3460 | /* Record this character as part of the current key. */ | |
3461 | add_command_key (c); | |
3462 | ||
3463 | /* Re-reading in the middle of a command */ | |
4b09796d | 3464 | last_input_event = c; |
c43b1734 | 3465 | num_input_events++; |
8eb4d8ef RS |
3466 | } |
3467 | ||
ecb7cb34 KH |
3468 | /* Return 1 if should recognize C as "the help character". */ |
3469 | ||
3470 | int | |
3471 | help_char_p (c) | |
3472 | Lisp_Object c; | |
3473 | { | |
3474 | Lisp_Object tail; | |
3475 | ||
3476 | if (EQ (c, Vhelp_char)) | |
3477 | return 1; | |
7539e11f KR |
3478 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3479 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3480 | return 1; |
3481 | return 0; | |
3482 | } | |
3483 | ||
e4fe371d RS |
3484 | /* Record the input event C in various ways. */ |
3485 | ||
3486 | static void | |
3487 | record_char (c) | |
3488 | Lisp_Object c; | |
3489 | { | |
090c68b9 | 3490 | int recorded = 0; |
52be17cc | 3491 | |
090c68b9 KS |
3492 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3493 | { | |
3494 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3495 | events, we filter out repeated help-echo events, only store the | |
3496 | first and last in a series of mouse-movement events, and don't | |
3497 | store repeated help-echo events which are only separated by | |
3498 | mouse-movement events. */ | |
3499 | ||
3500 | Lisp_Object ev1, ev2, ev3; | |
3501 | int ix1, ix2, ix3; | |
c60ee5e7 | 3502 | |
090c68b9 KS |
3503 | if ((ix1 = recent_keys_index - 1) < 0) |
3504 | ix1 = NUM_RECENT_KEYS - 1; | |
3505 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3506 | |
090c68b9 KS |
3507 | if ((ix2 = ix1 - 1) < 0) |
3508 | ix2 = NUM_RECENT_KEYS - 1; | |
3509 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3510 | |
090c68b9 KS |
3511 | if ((ix3 = ix2 - 1) < 0) |
3512 | ix3 = NUM_RECENT_KEYS - 1; | |
3513 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3514 | |
090c68b9 KS |
3515 | if (EQ (XCAR (c), Qhelp_echo)) |
3516 | { | |
3517 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3518 | message, and a different help than the previously recorded |
090c68b9 KS |
3519 | event. */ |
3520 | Lisp_Object help, last_help; | |
3521 | ||
3522 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3523 | if (!STRINGP (help)) | |
3524 | recorded = 1; | |
3525 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3526 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3527 | recorded = 1; | |
3528 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3529 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3530 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3531 | recorded = -1; | |
3532 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3533 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3534 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3535 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3536 | recorded = -2; | |
3537 | } | |
3538 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3539 | { |
090c68b9 KS |
3540 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3541 | So additional mouse movement events replace the last element. */ | |
3542 | Lisp_Object last_window, window; | |
3543 | ||
3544 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3545 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3546 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3547 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3548 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3549 | { |
090c68b9 KS |
3550 | ASET (recent_keys, ix1, c); |
3551 | recorded = 1; | |
52be17cc GM |
3552 | } |
3553 | } | |
3554 | } | |
3555 | else | |
090c68b9 KS |
3556 | store_kbd_macro_char (c); |
3557 | ||
3558 | if (!recorded) | |
e8a50785 GM |
3559 | { |
3560 | total_keys++; | |
3561 | ASET (recent_keys, recent_keys_index, c); | |
3562 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3563 | recent_keys_index = 0; | |
3564 | } | |
090c68b9 KS |
3565 | else if (recorded < 0) |
3566 | { | |
3567 | /* We need to remove one or two events from recent_keys. | |
3568 | To do this, we simply put nil at those events and move the | |
3569 | recent_keys_index backwards over those events. Usually, | |
3570 | users will never see those nil events, as they will be | |
3571 | overwritten by the command keys entered to see recent_keys | |
3572 | (e.g. C-h l). */ | |
3573 | ||
3574 | while (recorded++ < 0 && total_keys > 0) | |
3575 | { | |
3576 | if (total_keys < NUM_RECENT_KEYS) | |
3577 | total_keys--; | |
3578 | if (--recent_keys_index < 0) | |
3579 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3580 | ASET (recent_keys, recent_keys_index, Qnil); | |
3581 | } | |
3582 | } | |
3583 | ||
3584 | num_nonmacro_input_events++; | |
c60ee5e7 | 3585 | |
e4fe371d RS |
3586 | /* Write c to the dribble file. If c is a lispy event, write |
3587 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3588 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3589 | if (dribble) | |
3590 | { | |
34f5c10f | 3591 | BLOCK_INPUT; |
e4fe371d RS |
3592 | if (INTEGERP (c)) |
3593 | { | |
3594 | if (XUINT (c) < 0x100) | |
3595 | putc (XINT (c), dribble); | |
3596 | else | |
6de34814 | 3597 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3598 | } |
3599 | else | |
3600 | { | |
3601 | Lisp_Object dribblee; | |
3602 | ||
3603 | /* If it's a structured event, take the event header. */ | |
3604 | dribblee = EVENT_HEAD (c); | |
3605 | ||
3606 | if (SYMBOLP (dribblee)) | |
3607 | { | |
3608 | putc ('<', dribble); | |
d5db4077 KR |
3609 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3610 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3611 | dribble); |
3612 | putc ('>', dribble); | |
3613 | } | |
3614 | } | |
3615 | ||
3616 | fflush (dribble); | |
34f5c10f | 3617 | UNBLOCK_INPUT; |
e4fe371d | 3618 | } |
e4fe371d RS |
3619 | } |
3620 | ||
284f4730 JB |
3621 | Lisp_Object |
3622 | print_help (object) | |
3623 | Lisp_Object object; | |
3624 | { | |
622de3e9 | 3625 | struct buffer *old = current_buffer; |
284f4730 | 3626 | Fprinc (object, Qnil); |
622de3e9 KH |
3627 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3628 | call0 (intern ("help-mode")); | |
3629 | set_buffer_internal (old); | |
284f4730 JB |
3630 | return Qnil; |
3631 | } | |
3632 | ||
3633 | /* Copy out or in the info on where C-g should throw to. | |
3634 | This is used when running Lisp code from within get_char, | |
3635 | in case get_char is called recursively. | |
3636 | See read_process_output. */ | |
3637 | ||
dfcf069d | 3638 | static void |
284f4730 JB |
3639 | save_getcjmp (temp) |
3640 | jmp_buf temp; | |
3641 | { | |
3642 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3643 | } | |
3644 | ||
dfcf069d | 3645 | static void |
284f4730 JB |
3646 | restore_getcjmp (temp) |
3647 | jmp_buf temp; | |
3648 | { | |
3649 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3650 | } | |
284f4730 | 3651 | \f |
a612e298 RS |
3652 | /* Low level keyboard/mouse input. |
3653 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3654 | kbd_buffer_get_event retrieves them. */ |
a612e298 | 3655 | |
e0f24100 | 3656 | /* Return true if there are any events in the queue that read-char |
a612e298 RS |
3657 | would return. If this returns false, a read-char would block. */ |
3658 | static int | |
a2d5fca0 JD |
3659 | readable_events (flags) |
3660 | int flags; | |
a612e298 | 3661 | { |
485db0ba MA |
3662 | #ifdef HAVE_DBUS |
3663 | /* Check whether a D-Bus message has arrived. */ | |
3664 | if (xd_pending_messages () > 0) | |
3665 | return 1; | |
3666 | #endif /* HAVE_DBUS */ | |
3667 | ||
a2d5fca0 JD |
3668 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3669 | timer_check (1); | |
4ec4ed6a | 3670 | |
a2d5fca0 JD |
3671 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3672 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3673 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3674 | { |
354344a2 YM |
3675 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3676 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3677 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3678 | #endif | |
3679 | )) | |
20057d52 JD |
3680 | { |
3681 | struct input_event *event; | |
3682 | ||
3683 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3684 | ? kbd_fetch_ptr | |
3685 | : kbd_buffer); | |
3686 | ||
354344a2 YM |
3687 | do |
3688 | { | |
3689 | if (!( | |
3690 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3691 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3692 | #endif | |
3693 | event->kind == FOCUS_IN_EVENT) | |
3694 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3695 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3696 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3697 | && event->part == scroll_bar_handle | |
3698 | && event->modifiers == 0) | |
3699 | #endif | |
3700 | ) | |
3701 | return 1; | |
3702 | event++; | |
20057d52 JD |
3703 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3704 | event = kbd_buffer; | |
354344a2 YM |
3705 | } |
3706 | while (event != kbd_store_ptr); | |
20057d52 | 3707 | } |
354344a2 YM |
3708 | else |
3709 | return 1; | |
a0ba8995 RS |
3710 | } |
3711 | ||
ae372f41 | 3712 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a2d5fca0 JD |
3713 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3714 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3715 | return 1; |
3716 | #endif | |
1e8bd3da | 3717 | if (single_kboard) |
4c52b668 | 3718 | { |
c5fdd383 | 3719 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3720 | return 1; |
3721 | } | |
3722 | else | |
3723 | { | |
c5fdd383 KH |
3724 | KBOARD *kb; |
3725 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3726 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3727 | return 1; |
3728 | } | |
beecf6a1 | 3729 | return 0; |
a612e298 RS |
3730 | } |
3731 | ||
3732 | /* Set this for debugging, to have a way to get out */ | |
3733 | int stop_character; | |
284f4730 | 3734 | |
c5fdd383 KH |
3735 | static KBOARD * |
3736 | event_to_kboard (event) | |
5798cf15 KH |
3737 | struct input_event *event; |
3738 | { | |
3739 | Lisp_Object frame; | |
3740 | frame = event->frame_or_window; | |
3741 | if (CONSP (frame)) | |
7539e11f | 3742 | frame = XCAR (frame); |
5798cf15 KH |
3743 | else if (WINDOWP (frame)) |
3744 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3745 | ||
3746 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3747 | For now, just ignore the problem. |
3748 | Also ignore dead frames here. */ | |
3749 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3750 | return 0; |
3751 | else | |
c5fdd383 | 3752 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 | 3753 | } |
5798cf15 | 3754 | |
2a84c6da KS |
3755 | |
3756 | Lisp_Object Vthrow_on_input; | |
3757 | ||
284f4730 JB |
3758 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3759 | ||
3760 | void | |
3761 | kbd_buffer_store_event (event) | |
3762 | register struct input_event *event; | |
6b61353c KH |
3763 | { |
3764 | kbd_buffer_store_event_hold (event, 0); | |
3765 | } | |
3766 | ||
3767 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3768 | ||
3769 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3770 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3771 | Else, if EVENT is a quit event, store the quit event | |
3772 | in HOLD_QUIT, and return (thus ignoring further events). | |
3773 | ||
3774 | This is used in read_avail_input to postpone the processing | |
3775 | of the quit event until all subsequent input events have been | |
3776 | parsed (and discarded). | |
3777 | */ | |
3778 | ||
3779 | void | |
3780 | kbd_buffer_store_event_hold (event, hold_quit) | |
3781 | register struct input_event *event; | |
3782 | struct input_event *hold_quit; | |
284f4730 | 3783 | { |
3b8f9651 | 3784 | if (event->kind == NO_EVENT) |
284f4730 JB |
3785 | abort (); |
3786 | ||
6b61353c KH |
3787 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3788 | return; | |
3789 | ||
3b8f9651 | 3790 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3791 | { |
e9bf89a0 | 3792 | register int c = event->code & 0377; |
284f4730 | 3793 | |
faf5e407 JB |
3794 | if (event->modifiers & ctrl_modifier) |
3795 | c = make_ctrl_char (c); | |
3796 | ||
9fd7d808 RS |
3797 | c |= (event->modifiers |
3798 | & (meta_modifier | alt_modifier | |
3799 | | hyper_modifier | super_modifier)); | |
3800 | ||
86e5706b | 3801 | if (c == quit_char) |
284f4730 | 3802 | { |
d6805803 | 3803 | KBOARD *kb = FRAME_KBOARD (XFRAME (event->frame_or_window)); |
5798cf15 KH |
3804 | struct input_event *sp; |
3805 | ||
d6805803 | 3806 | if (single_kboard && kb != current_kboard) |
5798cf15 | 3807 | { |
c5fdd383 | 3808 | kb->kbd_queue |
5798cf15 KH |
3809 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3810 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3811 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3812 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3813 | { | |
3814 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3815 | sp = kbd_buffer; | |
3816 | ||
c5fdd383 | 3817 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3818 | { |
3b8f9651 | 3819 | sp->kind = NO_EVENT; |
5798cf15 | 3820 | sp->frame_or_window = Qnil; |
da8f7368 | 3821 | sp->arg = Qnil; |
5798cf15 KH |
3822 | } |
3823 | } | |
3824 | return; | |
3825 | } | |
3e51c7b7 | 3826 | |
6b61353c KH |
3827 | if (hold_quit) |
3828 | { | |
3829 | bcopy (event, (char *) hold_quit, sizeof (*event)); | |
3830 | return; | |
3831 | } | |
3832 | ||
284f4730 | 3833 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3834 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3835 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3836 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3837 | { |
9b8eb840 | 3838 | Lisp_Object focus; |
4bb994d1 | 3839 | |
9b8eb840 | 3840 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3841 | if (NILP (focus)) |
beecf6a1 | 3842 | focus = event->frame_or_window; |
4c52b668 KH |
3843 | internal_last_event_frame = focus; |
3844 | Vlast_event_frame = focus; | |
4bb994d1 | 3845 | } |
3e51c7b7 | 3846 | |
ffd56f97 | 3847 | last_event_timestamp = event->timestamp; |
114a8b8c | 3848 | handle_interrupt (); |
284f4730 JB |
3849 | return; |
3850 | } | |
3851 | ||
3852 | if (c && c == stop_character) | |
3853 | { | |
3854 | sys_suspend (); | |
3855 | return; | |
3856 | } | |
284f4730 | 3857 | } |
3b8f9651 | 3858 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3859 | Just ignore the second one. */ |
3b8f9651 | 3860 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3861 | && kbd_fetch_ptr != kbd_store_ptr |
6b61353c KH |
3862 | && ((kbd_store_ptr == kbd_buffer |
3863 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3864 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3865 | return; |
284f4730 | 3866 | |
beecf6a1 KH |
3867 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3868 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3869 | |
3870 | /* Don't let the very last slot in the buffer become full, | |
3871 | since that would make the two pointers equal, | |
3872 | and that is indistinguishable from an empty buffer. | |
3873 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3874 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3875 | { |
e3f6e7c7 KS |
3876 | *kbd_store_ptr = *event; |
3877 | ++kbd_store_ptr; | |
3878 | } | |
2a84c6da | 3879 | |
85e7f477 RS |
3880 | /* If we're inside while-no-input, and this event qualifies |
3881 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3882 | if (!NILP (Vthrow_on_input) |
3883 | && event->kind != FOCUS_IN_EVENT | |
3884 | && event->kind != HELP_EVENT | |
b809d9e7 | 3885 | && event->kind != DEICONIFY_EVENT) |
85e7f477 RS |
3886 | { |
3887 | Vquit_flag = Vthrow_on_input; | |
3888 | /* If we're inside a function that wants immediate quits, | |
3889 | do it now. */ | |
3890 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3891 | { | |
3892 | immediate_quit = 0; | |
3893 | sigfree (); | |
3894 | QUIT; | |
3895 | } | |
3896 | } | |
e3f6e7c7 | 3897 | } |
c60ee5e7 | 3898 | |
da8f7368 | 3899 | |
e3f6e7c7 | 3900 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3901 | |
e3f6e7c7 KS |
3902 | void |
3903 | kbd_buffer_unget_event (event) | |
3904 | register struct input_event *event; | |
3905 | { | |
3906 | if (kbd_fetch_ptr == kbd_buffer) | |
3907 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3908 | ||
3909 | /* Don't let the very last slot in the buffer become full, */ | |
3910 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3911 | { | |
3912 | --kbd_fetch_ptr; | |
3913 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3914 | } |
3915 | } | |
8dfd92c9 GM |
3916 | |
3917 | ||
f139e559 | 3918 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3919 | SIZE events. If there's not enough room in BUFP, ignore this |
3920 | event. | |
8dfd92c9 GM |
3921 | |
3922 | HELP is the help form. | |
3923 | ||
3924 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3925 | Lisp object where the help was found (a buffer, a string, an |
3926 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3927 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3928 | |
3929 | Value is the number of input_events generated. */ | |
3930 | ||
6b61353c KH |
3931 | void |
3932 | gen_help_event (help, frame, window, object, pos) | |
2190735a | 3933 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3934 | int pos; |
3935 | { | |
6b61353c KH |
3936 | struct input_event event; |
3937 | ||
3938 | EVENT_INIT (event); | |
3939 | ||
3940 | event.kind = HELP_EVENT; | |
3941 | event.frame_or_window = frame; | |
3942 | event.arg = object; | |
3943 | event.x = WINDOWP (window) ? window : frame; | |
3944 | event.y = help; | |
3945 | event.code = pos; | |
3946 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3947 | } |
3948 | ||
3949 | ||
3950 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3951 | ||
3952 | void | |
3953 | kbd_buffer_store_help_event (frame, help) | |
3954 | Lisp_Object frame, help; | |
3955 | { | |
3956 | struct input_event event; | |
3957 | ||
3958 | event.kind = HELP_EVENT; | |
3959 | event.frame_or_window = frame; | |
3960 | event.arg = Qnil; | |
2e1a49ad SM |
3961 | event.x = Qnil; |
3962 | event.y = help; | |
8dfd92c9 GM |
3963 | event.code = 0; |
3964 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3965 | } |
3966 | ||
a612e298 | 3967 | \f |
07de30b9 | 3968 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3969 | NO_EVENT. */ |
07de30b9 GV |
3970 | void |
3971 | discard_mouse_events () | |
3972 | { | |
3973 | struct input_event *sp; | |
3974 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3975 | { | |
3976 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3977 | sp = kbd_buffer; | |
3978 | ||
3b8f9651 | 3979 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3980 | || sp->kind == WHEEL_EVENT |
13899bc1 | 3981 | || sp->kind == HORIZ_WHEEL_EVENT |
e416374c NR |
3982 | #ifdef HAVE_GPM |
3983 | || sp->kind == GPM_CLICK_EVENT | |
07de30b9 | 3984 | #endif |
3b8f9651 | 3985 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3986 | { |
3b8f9651 | 3987 | sp->kind = NO_EVENT; |
07de30b9 GV |
3988 | } |
3989 | } | |
3990 | } | |
eeabfe76 | 3991 | |
0bbfdc25 GM |
3992 | |
3993 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3994 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3995 | |
3b8f9651 | 3996 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3997 | the input queue, possibly leaving the input queue empty if there |
3998 | are no real input events. */ | |
3999 | ||
eeabfe76 EZ |
4000 | int |
4001 | kbd_buffer_events_waiting (discard) | |
4002 | int discard; | |
4003 | { | |
4004 | struct input_event *sp; | |
c60ee5e7 | 4005 | |
0bbfdc25 | 4006 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 4007 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 4008 | ++sp) |
eeabfe76 EZ |
4009 | { |
4010 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
4011 | sp = kbd_buffer; | |
eeabfe76 | 4012 | } |
0bbfdc25 | 4013 | |
eeabfe76 EZ |
4014 | if (discard) |
4015 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 4016 | |
3b8f9651 | 4017 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 4018 | } |
0bbfdc25 | 4019 | |
07de30b9 | 4020 | \f |
0bbfdc25 GM |
4021 | /* Clear input event EVENT. */ |
4022 | ||
4023 | static INLINE void | |
4024 | clear_event (event) | |
4025 | struct input_event *event; | |
4026 | { | |
3b8f9651 | 4027 | event->kind = NO_EVENT; |
0bbfdc25 GM |
4028 | } |
4029 | ||
4030 | ||
a612e298 RS |
4031 | /* Read one event from the event buffer, waiting if necessary. |
4032 | The value is a Lisp object representing the event. | |
4033 | The value is nil for an event that should be ignored, | |
4034 | or that was handled here. | |
4035 | We always read and discard one event. */ | |
284f4730 JB |
4036 | |
4037 | static Lisp_Object | |
179f689c | 4038 | kbd_buffer_get_event (kbp, used_mouse_menu, end_time) |
410d4de9 | 4039 | KBOARD **kbp; |
83d68044 | 4040 | int *used_mouse_menu; |
179f689c | 4041 | EMACS_TIME *end_time; |
284f4730 JB |
4042 | { |
4043 | register int c; | |
4044 | Lisp_Object obj; | |
4045 | ||
a3b1a468 DN |
4046 | if (noninteractive |
4047 | /* In case we are running as a daemon, only do this before | |
4048 | detaching from the terminal. */ | |
4049 | || (IS_DAEMON && daemon_pipe[1] >= 0)) | |
284f4730 JB |
4050 | { |
4051 | c = getchar (); | |
18cd2eeb | 4052 | XSETINT (obj, c); |
f5b56972 | 4053 | *kbp = current_kboard; |
284f4730 JB |
4054 | return obj; |
4055 | } | |
4056 | ||
4057 | /* Wait until there is input available. */ | |
4058 | for (;;) | |
4059 | { | |
15d81484 MR |
4060 | /* Break loop if there's an unread command event. Needed in |
4061 | moused window autoselection which uses a timer to insert such | |
4062 | events. */ | |
4063 | if (CONSP (Vunread_command_events)) | |
4064 | break; | |
033b73e2 | 4065 | |
beecf6a1 KH |
4066 | if (kbd_fetch_ptr != kbd_store_ptr) |
4067 | break; | |
ae372f41 | 4068 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4069 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4070 | break; |
beecf6a1 | 4071 | #endif |
284f4730 JB |
4072 | |
4073 | /* If the quit flag is set, then read_char will return | |
4074 | quit_char, so that counts as "available input." */ | |
4075 | if (!NILP (Vquit_flag)) | |
4076 | quit_throw_to_read_char (); | |
4077 | ||
4078 | /* One way or another, wait until input is available; then, if | |
4079 | interrupt handlers have not read it, read it now. */ | |
4080 | ||
284f4730 JB |
4081 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
4082 | #ifdef SIGIO | |
4083 | gobble_input (0); | |
4084 | #endif /* SIGIO */ | |
beecf6a1 KH |
4085 | if (kbd_fetch_ptr != kbd_store_ptr) |
4086 | break; | |
ae372f41 | 4087 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4088 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
4089 | break; |
4090 | #endif | |
179f689c CY |
4091 | if (end_time) |
4092 | { | |
4093 | EMACS_TIME duration; | |
4094 | EMACS_GET_TIME (duration); | |
6b657e42 EZ |
4095 | if (EMACS_TIME_GE (duration, *end_time)) |
4096 | return Qnil; /* finished waiting */ | |
179f689c | 4097 | else |
6b657e42 EZ |
4098 | { |
4099 | EMACS_SUB_TIME (duration, *end_time, duration); | |
4100 | wait_reading_process_output (EMACS_SECS (duration), | |
4101 | EMACS_USECS (duration), | |
4102 | -1, 1, Qnil, NULL, 0); | |
4103 | } | |
179f689c CY |
4104 | } |
4105 | else | |
d64b707c | 4106 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 4107 | |
179f689c CY |
4108 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
4109 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
4110 | read_avail_input (1); | |
284f4730 JB |
4111 | } |
4112 | ||
303b5b3f RS |
4113 | if (CONSP (Vunread_command_events)) |
4114 | { | |
4115 | Lisp_Object first; | |
7539e11f KR |
4116 | first = XCAR (Vunread_command_events); |
4117 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
4118 | *kbp = current_kboard; |
4119 | return first; | |
4120 | } | |
4121 | ||
284f4730 JB |
4122 | /* At this point, we know that there is a readable event available |
4123 | somewhere. If the event queue is empty, then there must be a | |
4124 | mouse movement enabled and available. */ | |
beecf6a1 | 4125 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 4126 | { |
cd21b839 | 4127 | struct input_event *event; |
3e51c7b7 | 4128 | |
beecf6a1 KH |
4129 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4130 | ? kbd_fetch_ptr | |
4131 | : kbd_buffer); | |
3e51c7b7 | 4132 | |
cd21b839 | 4133 | last_event_timestamp = event->timestamp; |
cd21b839 | 4134 | |
c5fdd383 KH |
4135 | *kbp = event_to_kboard (event); |
4136 | if (*kbp == 0) | |
4137 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
beecf6a1 | 4138 | |
4bb994d1 JB |
4139 | obj = Qnil; |
4140 | ||
48e416d4 | 4141 | /* These two kinds of events get special handling |
a612e298 RS |
4142 | and don't actually appear to the command loop. |
4143 | We return nil for them. */ | |
e3f6e7c7 KS |
4144 | if (event->kind == SELECTION_REQUEST_EVENT |
4145 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 4146 | { |
598a9fa7 | 4147 | #ifdef HAVE_X11 |
1e8bd3da RS |
4148 | struct input_event copy; |
4149 | ||
4581e928 RS |
4150 | /* Remove it from the buffer before processing it, |
4151 | since otherwise swallow_events will see it | |
4152 | and process it again. */ | |
1e8bd3da | 4153 | copy = *event; |
beecf6a1 | 4154 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4155 | input_pending = readable_events (0); |
e3f6e7c7 | 4156 | x_handle_selection_event (©); |
598a9fa7 JB |
4157 | #else |
4158 | /* We're getting selection request events, but we don't have | |
4159 | a window system. */ | |
4160 | abort (); | |
4161 | #endif | |
48e416d4 RS |
4162 | } |
4163 | ||
8612b71a AR |
4164 | #if defined (HAVE_NS) |
4165 | else if (event->kind == NS_TEXT_EVENT) | |
4166 | { | |
4167 | if (event->code == KEY_NS_PUT_WORKING_TEXT) | |
4168 | obj = Fcons (intern ("ns-put-working-text"), Qnil); | |
4169 | else | |
4170 | obj = Fcons (intern ("ns-unput-working-text"), Qnil); | |
4171 | kbd_fetch_ptr = event + 1; | |
5acf9d90 AR |
4172 | if (used_mouse_menu) |
4173 | *used_mouse_menu = 1; | |
8612b71a AR |
4174 | } |
4175 | #endif | |
4176 | ||
9e2a2647 | 4177 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 4178 | || defined (HAVE_NS) |
3b8f9651 | 4179 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 4180 | { |
bbdc2092 RS |
4181 | /* Make an event (delete-frame (FRAME)). */ |
4182 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 4183 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 4184 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4185 | } |
1a578e9b | 4186 | #endif |
9e2a2647 | 4187 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 4188 | || defined (HAVE_NS) |
3b8f9651 | 4189 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
4190 | { |
4191 | /* Make an event (iconify-frame (FRAME)). */ | |
4192 | obj = Fcons (event->frame_or_window, Qnil); | |
4193 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 4194 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4195 | } |
3b8f9651 | 4196 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
4197 | { |
4198 | /* Make an event (make-frame-visible (FRAME)). */ | |
4199 | obj = Fcons (event->frame_or_window, Qnil); | |
4200 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 4201 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
4202 | } |
4203 | #endif | |
3b8f9651 | 4204 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
4205 | { |
4206 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 4207 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 4208 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 4209 | } |
9e2a2647 | 4210 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 4211 | || defined(HAVE_NS) || defined (USE_GTK) |
3b8f9651 | 4212 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
4213 | { |
4214 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 4215 | input_pending = readable_events (0); |
e649d076 RS |
4216 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
4217 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 4218 | } |
1161d367 | 4219 | #endif |
9e2a2647 | 4220 | #if defined (WINDOWSNT) |
3b8f9651 | 4221 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
4222 | { |
4223 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
d352abdf | 4224 | obj = Fcons (event->frame_or_window, Qnil); |
1161d367 GV |
4225 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
4226 | kbd_fetch_ptr = event + 1; | |
4227 | } | |
099787c1 | 4228 | #endif |
3b8f9651 | 4229 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
4230 | { |
4231 | obj = Fcons (Qsave_session, Qnil); | |
4232 | kbd_fetch_ptr = event + 1; | |
4233 | } | |
a612e298 | 4234 | /* Just discard these, by returning nil. |
c5fdd383 | 4235 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
4236 | when we need to randomly delete events from the queue. |
4237 | (They shouldn't otherwise be found in the buffer, | |
4238 | but on some machines it appears they do show up | |
c5fdd383 | 4239 | even without MULTI_KBOARD.) */ |
3b8f9651 | 4240 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 4241 | mouse events during a popup-menu call. */ |
3b8f9651 | 4242 | else if (event->kind == NO_EVENT) |
beecf6a1 | 4243 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
4244 | else if (event->kind == HELP_EVENT) |
4245 | { | |
2190735a | 4246 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 4247 | |
8dfd92c9 GM |
4248 | frame = event->frame_or_window; |
4249 | object = event->arg; | |
2e1a49ad SM |
4250 | position = make_number (event->code); |
4251 | window = event->x; | |
4252 | help = event->y; | |
0bbfdc25 | 4253 | clear_event (event); |
e4457b09 GM |
4254 | |
4255 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4256 | if (!WINDOWP (window)) |
4257 | window = Qnil; | |
4258 | obj = Fcons (Qhelp_echo, | |
4259 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4260 | } |
c51c7093 GM |
4261 | else if (event->kind == FOCUS_IN_EVENT) |
4262 | { | |
4263 | /* Notification of a FocusIn event. The frame receiving the | |
4264 | focus is in event->frame_or_window. Generate a | |
4265 | switch-frame event if necessary. */ | |
4266 | Lisp_Object frame, focus; | |
4267 | ||
4268 | frame = event->frame_or_window; | |
4269 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4270 | if (FRAMEP (focus)) | |
4271 | frame = focus; | |
4272 | ||
4273 | if (!EQ (frame, internal_last_event_frame) | |
4274 | && !EQ (frame, selected_frame)) | |
4275 | obj = make_lispy_switch_frame (frame); | |
4276 | internal_last_event_frame = frame; | |
4277 | kbd_fetch_ptr = event + 1; | |
4278 | } | |
033b73e2 MA |
4279 | #ifdef HAVE_DBUS |
4280 | else if (event->kind == DBUS_EVENT) | |
4281 | { | |
4282 | obj = make_lispy_event (event); | |
4283 | kbd_fetch_ptr = event + 1; | |
4284 | } | |
4285 | #endif | |
1e12dd87 RS |
4286 | else |
4287 | { | |
c51c7093 GM |
4288 | /* If this event is on a different frame, return a switch-frame this |
4289 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4290 | Lisp_Object frame; |
1e12dd87 | 4291 | Lisp_Object focus; |
7b4aedb9 | 4292 | |
9b8eb840 | 4293 | frame = event->frame_or_window; |
2470a66f | 4294 | if (CONSP (frame)) |
7539e11f | 4295 | frame = XCAR (frame); |
2470a66f | 4296 | else if (WINDOWP (frame)) |
1e12dd87 | 4297 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4298 | |
1e12dd87 RS |
4299 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4300 | if (! NILP (focus)) | |
4301 | frame = focus; | |
07d2b8de | 4302 | |
4c52b668 | 4303 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4304 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4305 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4306 | internal_last_event_frame = frame; |
4bb994d1 | 4307 | |
1e12dd87 RS |
4308 | /* If we didn't decide to make a switch-frame event, go ahead |
4309 | and build a real event from the queue entry. */ | |
cd21b839 | 4310 | |
1e12dd87 RS |
4311 | if (NILP (obj)) |
4312 | { | |
4313 | obj = make_lispy_event (event); | |
c60ee5e7 | 4314 | |
9e2a2647 | 4315 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 4316 | || defined(HAVE_NS) || defined (USE_GTK) |
83d68044 KH |
4317 | /* If this was a menu selection, then set the flag to inhibit |
4318 | writing to last_nonmenu_event. Don't do this if the event | |
4319 | we're returning is (menu-bar), though; that indicates the | |
4320 | beginning of the menu sequence, and we might as well leave | |
4321 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4322 | if (used_mouse_menu |
4323 | && !EQ (event->frame_or_window, event->arg) | |
4324 | && (event->kind == MENU_BAR_EVENT | |
4325 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4326 | *used_mouse_menu = 1; |
4327 | #endif | |
83d92ee0 DR |
4328 | #ifdef HAVE_NS |
4329 | /* certain system events are non-key events */ | |
5acf9d90 AR |
4330 | if (used_mouse_menu |
4331 | && event->kind == NS_NONKEY_EVENT) | |
83d92ee0 DR |
4332 | *used_mouse_menu = 1; |
4333 | #endif | |
1e12dd87 RS |
4334 | |
4335 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4336 | clear_event (event); |
beecf6a1 | 4337 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4338 | } |
4bb994d1 | 4339 | } |
284f4730 | 4340 | } |
ae372f41 | 4341 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a612e298 | 4342 | /* Try generating a mouse motion event. */ |
f3253854 | 4343 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4344 | { |
f3253854 | 4345 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4346 | Lisp_Object bar_window; |
3c370943 | 4347 | enum scroll_bar_part part; |
e5d77022 JB |
4348 | Lisp_Object x, y; |
4349 | unsigned long time; | |
284f4730 | 4350 | |
c5fdd383 | 4351 | *kbp = current_kboard; |
6ed8eeff | 4352 | /* Note that this uses F to determine which terminal to look at. |
e177ac3a RS |
4353 | If there is no valid info, it does not store anything |
4354 | so x remains nil. */ | |
4355 | x = Qnil; | |
3b7fbceb | 4356 | |
c3b4957f | 4357 | /* XXX Can f or mouse_position_hook be NULL here? */ |
6ed8eeff KL |
4358 | if (f && FRAME_TERMINAL (f)->mouse_position_hook) |
4359 | (*FRAME_TERMINAL (f)->mouse_position_hook) (&f, 0, &bar_window, | |
4360 | &part, &x, &y, &time); | |
4bb994d1 JB |
4361 | |
4362 | obj = Qnil; | |
284f4730 | 4363 | |
4bb994d1 JB |
4364 | /* Decide if we should generate a switch-frame event. Don't |
4365 | generate switch-frame events for motion outside of all Emacs | |
4366 | frames. */ | |
e177ac3a | 4367 | if (!NILP (x) && f) |
cd21b839 | 4368 | { |
9b8eb840 | 4369 | Lisp_Object frame; |
4bb994d1 | 4370 | |
9b8eb840 | 4371 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4372 | if (NILP (frame)) |
18cd2eeb | 4373 | XSETFRAME (frame, f); |
4bb994d1 | 4374 | |
4c52b668 | 4375 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4376 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4377 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4378 | internal_last_event_frame = frame; |
cd21b839 | 4379 | } |
4bb994d1 | 4380 | |
df0f2ba1 | 4381 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4382 | return a mouse-motion event. */ |
e177ac3a | 4383 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4384 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4385 | } |
ae372f41 | 4386 | #endif /* HAVE_MOUSE || HAVE GPM */ |
284f4730 JB |
4387 | else |
4388 | /* We were promised by the above while loop that there was | |
4389 | something for us to read! */ | |
4390 | abort (); | |
4391 | ||
d9d4c147 | 4392 | input_pending = readable_events (0); |
284f4730 | 4393 | |
4c52b668 | 4394 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4395 | |
284f4730 JB |
4396 | return (obj); |
4397 | } | |
a612e298 RS |
4398 | \f |
4399 | /* Process any events that are not user-visible, | |
4400 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4401 | |
4402 | void | |
d9d4c147 KH |
4403 | swallow_events (do_display) |
4404 | int do_display; | |
3a3b9632 | 4405 | { |
87dd9b9b RS |
4406 | int old_timers_run; |
4407 | ||
beecf6a1 | 4408 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4409 | { |
4410 | struct input_event *event; | |
4411 | ||
beecf6a1 KH |
4412 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4413 | ? kbd_fetch_ptr | |
4414 | : kbd_buffer); | |
3a3b9632 RS |
4415 | |
4416 | last_event_timestamp = event->timestamp; | |
4417 | ||
4418 | /* These two kinds of events get special handling | |
4419 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4420 | if (event->kind == SELECTION_REQUEST_EVENT |
4421 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4422 | { |
4423 | #ifdef HAVE_X11 | |
4581e928 | 4424 | struct input_event copy; |
e0301c07 RS |
4425 | |
4426 | /* Remove it from the buffer before processing it, | |
4427 | since otherwise swallow_events called recursively could see it | |
4428 | and process it again. */ | |
4581e928 | 4429 | copy = *event; |
beecf6a1 | 4430 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4431 | input_pending = readable_events (0); |
e3f6e7c7 | 4432 | x_handle_selection_event (©); |
3a3b9632 RS |
4433 | #else |
4434 | /* We're getting selection request events, but we don't have | |
4435 | a window system. */ | |
4436 | abort (); | |
4437 | #endif | |
4438 | } | |
4439 | else | |
4440 | break; | |
4441 | } | |
4442 | ||
87dd9b9b | 4443 | old_timers_run = timers_run; |
a2d5fca0 | 4444 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4445 | |
4446 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4447 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4448 | } |
a612e298 | 4449 | \f |
d9d4c147 KH |
4450 | /* Record the start of when Emacs is idle, |
4451 | for the sake of running idle-time timers. */ | |
4452 | ||
5c12e63f | 4453 | static void |
d9d4c147 KH |
4454 | timer_start_idle () |
4455 | { | |
4456 | Lisp_Object timers; | |
4457 | ||
4458 | /* If we are already in the idle state, do nothing. */ | |
4459 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4460 | return; | |
4461 | ||
4462 | EMACS_GET_TIME (timer_idleness_start_time); | |
4463 | ||
3021d3a9 RS |
4464 | timer_last_idleness_start_time = timer_idleness_start_time; |
4465 | ||
d9d4c147 | 4466 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4467 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4468 | { |
4469 | Lisp_Object timer; | |
4470 | ||
7539e11f | 4471 | timer = XCAR (timers); |
d9d4c147 KH |
4472 | |
4473 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4474 | continue; | |
4475 | XVECTOR (timer)->contents[0] = Qnil; | |
4476 | } | |
4477 | } | |
4478 | ||
4479 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4480 | ||
5c12e63f | 4481 | static void |
d9d4c147 KH |
4482 | timer_stop_idle () |
4483 | { | |
4484 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4485 | } | |
4486 | ||
5c12e63f KS |
4487 | /* Resume idle timer from last idle start time. */ |
4488 | ||
4489 | static void | |
4490 | timer_resume_idle () | |
4491 | { | |
4492 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4493 | return; | |
4494 | ||
4495 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4496 | } | |
4497 | ||
e044e87c RS |
4498 | /* This is only for debugging. */ |
4499 | struct input_event last_timer_event; | |
4500 | ||
58555d81 SM |
4501 | /* List of elisp functions to call, delayed because they were generated in |
4502 | a context where Elisp could not be safely run (e.g. redisplay, signal, | |
864660a2 | 4503 | ...). Each element has the form (FUN . ARGS). */ |
58555d81 SM |
4504 | Lisp_Object pending_funcalls; |
4505 | ||
4506 | extern Lisp_Object Qapply; | |
4507 | ||
c04cbc3b RS |
4508 | /* Check whether a timer has fired. To prevent larger problems we simply |
4509 | disregard elements that are not proper timers. Do not make a circular | |
4510 | timer list for the time being. | |
4511 | ||
e90292a9 JD |
4512 | Returns the time to wait until the next timer fires. If a |
4513 | timer is triggering now, return zero. | |
4514 | If no timer is active, return -1. | |
c04cbc3b | 4515 | |
4ec4ed6a | 4516 | If a timer is ripe, we run it, with quitting turned off. |
e90292a9 JD |
4517 | In that case we return 0 to indicate that a new timer_check_2 call |
4518 | should be done. */ | |
4ec4ed6a | 4519 | |
e90292a9 JD |
4520 | static EMACS_TIME |
4521 | timer_check_2 () | |
c04cbc3b RS |
4522 | { |
4523 | EMACS_TIME nexttime; | |
9291c072 RS |
4524 | EMACS_TIME now, idleness_now; |
4525 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4526 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4527 | |
c04cbc3b RS |
4528 | EMACS_SET_SECS (nexttime, -1); |
4529 | EMACS_SET_USECS (nexttime, -1); | |
4530 | ||
9291c072 | 4531 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4532 | timers = Vtimer_list; |
9291c072 RS |
4533 | /* Consider the idle timers only if Emacs is idle. */ |
4534 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4535 | idle_timers = Vtimer_idle_list; | |
4536 | else | |
4537 | idle_timers = Qnil; | |
4538 | chosen_timer = Qnil; | |
4539 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4540 | |
58555d81 SM |
4541 | /* First run the code that was delayed. */ |
4542 | while (CONSP (pending_funcalls)) | |
4543 | { | |
4544 | Lisp_Object funcall = XCAR (pending_funcalls); | |
4545 | pending_funcalls = XCDR (pending_funcalls); | |
4546 | safe_call2 (Qapply, XCAR (funcall), XCDR (funcall)); | |
4547 | } | |
4548 | ||
9291c072 | 4549 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4550 | { |
9291c072 RS |
4551 | EMACS_GET_TIME (now); |
4552 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4553 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4554 | } | |
c04cbc3b | 4555 | |
9291c072 RS |
4556 | while (CONSP (timers) || CONSP (idle_timers)) |
4557 | { | |
9291c072 | 4558 | Lisp_Object *vector; |
8c907a56 | 4559 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4560 | EMACS_TIME timer_time, idle_timer_time; |
4561 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4562 | ||
4563 | /* Skip past invalid timers and timers already handled. */ | |
4564 | if (!NILP (timers)) | |
c04cbc3b | 4565 | { |
7539e11f | 4566 | timer = XCAR (timers); |
9291c072 RS |
4567 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4568 | { | |
7539e11f | 4569 | timers = XCDR (timers); |
9291c072 RS |
4570 | continue; |
4571 | } | |
4572 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4573 | |
9291c072 RS |
4574 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4575 | || !INTEGERP (vector[3]) | |
4576 | || ! NILP (vector[0])) | |
4577 | { | |
7539e11f | 4578 | timers = XCDR (timers); |
9291c072 RS |
4579 | continue; |
4580 | } | |
4581 | } | |
4582 | if (!NILP (idle_timers)) | |
4583 | { | |
7539e11f | 4584 | timer = XCAR (idle_timers); |
d9d4c147 | 4585 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4586 | { |
7539e11f | 4587 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4588 | continue; |
4589 | } | |
d9d4c147 KH |
4590 | vector = XVECTOR (timer)->contents; |
4591 | ||
4592 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4593 | || !INTEGERP (vector[3]) |
4594 | || ! NILP (vector[0])) | |
4595 | { | |
7539e11f | 4596 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4597 | continue; |
4598 | } | |
4599 | } | |
d9d4c147 | 4600 | |
9291c072 RS |
4601 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4602 | based on the next ordinary timer. | |
4603 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4604 | this timer becomes ripe (negative if it's already ripe). */ | |
4605 | if (!NILP (timers)) | |
4606 | { | |
7539e11f | 4607 | timer = XCAR (timers); |
9291c072 | 4608 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4609 | EMACS_SET_SECS (timer_time, |
4610 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4611 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4612 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4613 | } | |
ba8dfba8 | 4614 | |
9291c072 RS |
4615 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4616 | based on the next idle timer. */ | |
4617 | if (!NILP (idle_timers)) | |
4618 | { | |
7539e11f | 4619 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4620 | vector = XVECTOR (idle_timer)->contents; |
4621 | EMACS_SET_SECS (idle_timer_time, | |
4622 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4623 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4624 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4625 | } | |
ba8dfba8 | 4626 | |
9291c072 RS |
4627 | /* Decide which timer is the next timer, |
4628 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4629 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4630 | |
9291c072 RS |
4631 | if (! NILP (timers) && ! NILP (idle_timers)) |
4632 | { | |
4633 | EMACS_TIME temp; | |
4634 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4635 | if (EMACS_TIME_NEG_P (temp)) | |
4636 | { | |
4637 | chosen_timer = timer; | |
7539e11f | 4638 | timers = XCDR (timers); |
9291c072 | 4639 | difference = timer_difference; |
c04cbc3b | 4640 | } |
d9d4c147 | 4641 | else |
d9d4c147 | 4642 | { |
9291c072 | 4643 | chosen_timer = idle_timer; |
7539e11f | 4644 | idle_timers = XCDR (idle_timers); |
9291c072 | 4645 | difference = idle_timer_difference; |
d9d4c147 | 4646 | } |
7ea13e12 | 4647 | } |
9291c072 RS |
4648 | else if (! NILP (timers)) |
4649 | { | |
4650 | chosen_timer = timer; | |
7539e11f | 4651 | timers = XCDR (timers); |
9291c072 RS |
4652 | difference = timer_difference; |
4653 | } | |
4654 | else | |
4655 | { | |
4656 | chosen_timer = idle_timer; | |
7539e11f | 4657 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4658 | difference = idle_timer_difference; |
4659 | } | |
4660 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4661 | |
bd55b860 | 4662 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4663 | if (EMACS_TIME_NEG_P (difference) |
4664 | || (EMACS_SECS (difference) == 0 | |
4665 | && EMACS_USECS (difference) == 0)) | |
4666 | { | |
4667 | if (NILP (vector[0])) | |
4668 | { | |
331379bf | 4669 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4670 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4671 | |
9291c072 RS |
4672 | /* Mark the timer as triggered to prevent problems if the lisp |
4673 | code fails to reschedule it right. */ | |
4674 | vector[0] = Qt; | |
4675 | ||
d925fb39 | 4676 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4677 | |
d925fb39 | 4678 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4679 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4680 | timers_run++; |
d925fb39 | 4681 | unbind_to (count, Qnil); |
4ec4ed6a | 4682 | |
d925fb39 RS |
4683 | /* Since we have handled the event, |
4684 | we don't need to tell the caller to wake up and do it. */ | |
e90292a9 JD |
4685 | /* But the caller must still wait for the next timer, so |
4686 | return 0 to indicate that. */ | |
9291c072 | 4687 | } |
e90292a9 JD |
4688 | |
4689 | EMACS_SET_SECS (nexttime, 0); | |
4690 | EMACS_SET_USECS (nexttime, 0); | |
9291c072 RS |
4691 | } |
4692 | else | |
4693 | /* When we encounter a timer that is still waiting, | |
4694 | return the amount of time to wait before it is ripe. */ | |
4695 | { | |
4696 | UNGCPRO; | |
9291c072 RS |
4697 | return difference; |
4698 | } | |
c04cbc3b | 4699 | } |
9291c072 | 4700 | |
7ea13e12 RS |
4701 | /* No timers are pending in the future. */ |
4702 | /* Return 0 if we generated an event, and -1 if not. */ | |
4703 | UNGCPRO; | |
c04cbc3b RS |
4704 | return nexttime; |
4705 | } | |
ff458d81 | 4706 | |
e90292a9 JD |
4707 | |
4708 | /* Check whether a timer has fired. To prevent larger problems we simply | |
4709 | disregard elements that are not proper timers. Do not make a circular | |
4710 | timer list for the time being. | |
4711 | ||
4712 | Returns the time to wait until the next timer fires. | |
4713 | If no timer is active, return -1. | |
4714 | ||
4715 | As long as any timer is ripe, we run it. | |
4716 | ||
4717 | DO_IT_NOW is now ignored. It used to mean that we should | |
4718 | run the timer directly instead of queueing a timer-event. | |
4719 | Now we always run timers directly. */ | |
4720 | ||
4721 | EMACS_TIME | |
4722 | timer_check (do_it_now) | |
4723 | int do_it_now; | |
4724 | { | |
4725 | EMACS_TIME nexttime; | |
4726 | ||
4727 | do | |
4728 | { | |
4729 | nexttime = timer_check_2 (); | |
4730 | } | |
4731 | while (EMACS_SECS (nexttime) == 0 && EMACS_USECS (nexttime) == 0); | |
4732 | ||
4733 | return nexttime; | |
4734 | } | |
4735 | ||
ff458d81 | 4736 | DEFUN ("current-idle-time", Fcurrent_idle_time, Scurrent_idle_time, 0, 0, 0, |
3a704bd7 | 4737 | doc: /* Return the current length of Emacs idleness, or nil. |
f761d6b6 JB |
4738 | The value when Emacs is idle is a list of three integers. The first has |
4739 | the most significant 16 bits of the seconds, while the second has the least | |
4740 | significant 16 bits. The third integer gives the microsecond count. | |
ff458d81 | 4741 | |
3a704bd7 RS |
4742 | The value when Emacs is not idle is nil. |
4743 | ||
ff458d81 RS |
4744 | The microsecond count is zero on systems that do not provide |
4745 | resolution finer than a second. */) | |
4746 | () | |
4747 | { | |
ff458d81 RS |
4748 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) |
4749 | { | |
966949b0 | 4750 | EMACS_TIME now, idleness_now; |
ff458d81 | 4751 | |
966949b0 KS |
4752 | EMACS_GET_TIME (now); |
4753 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
ff458d81 | 4754 | |
966949b0 KS |
4755 | return list3 (make_number ((EMACS_SECS (idleness_now) >> 16) & 0xffff), |
4756 | make_number ((EMACS_SECS (idleness_now) >> 0) & 0xffff), | |
4757 | make_number (EMACS_USECS (idleness_now))); | |
ff458d81 RS |
4758 | } |
4759 | ||
4760 | return Qnil; | |
4761 | } | |
c04cbc3b | 4762 | \f |
284f4730 | 4763 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4764 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4765 | static Lisp_Object func_key_syms; |
4766 | static Lisp_Object mouse_syms; | |
8006e4bb | 4767 | static Lisp_Object wheel_syms; |
a24dc617 | 4768 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4769 | |
e9bf89a0 RS |
4770 | /* This is a list of keysym codes for special "accent" characters. |
4771 | It parallels lispy_accent_keys. */ | |
4772 | ||
4773 | static int lispy_accent_codes[] = | |
4774 | { | |
79a7046c | 4775 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4776 | XK_dead_circumflex, |
79a7046c RS |
4777 | #else |
4778 | 0, | |
4779 | #endif | |
4780 | #ifdef XK_dead_grave | |
e9bf89a0 | 4781 | XK_dead_grave, |
79a7046c RS |
4782 | #else |
4783 | 0, | |
4784 | #endif | |
4785 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4786 | XK_dead_tilde, |
79a7046c RS |
4787 | #else |
4788 | 0, | |
4789 | #endif | |
4790 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4791 | XK_dead_diaeresis, |
79a7046c RS |
4792 | #else |
4793 | 0, | |
4794 | #endif | |
4795 | #ifdef XK_dead_macron | |
e9bf89a0 | 4796 | XK_dead_macron, |
79a7046c RS |
4797 | #else |
4798 | 0, | |
4799 | #endif | |
4800 | #ifdef XK_dead_degree | |
e9bf89a0 | 4801 | XK_dead_degree, |
79a7046c RS |
4802 | #else |
4803 | 0, | |
4804 | #endif | |
4805 | #ifdef XK_dead_acute | |
e9bf89a0 | 4806 | XK_dead_acute, |
79a7046c RS |
4807 | #else |
4808 | 0, | |
4809 | #endif | |
4810 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4811 | XK_dead_cedilla, |
79a7046c RS |
4812 | #else |
4813 | 0, | |
4814 | #endif | |
4815 | #ifdef XK_dead_breve | |
e9bf89a0 | 4816 | XK_dead_breve, |
79a7046c RS |
4817 | #else |
4818 | 0, | |
4819 | #endif | |
4820 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4821 | XK_dead_ogonek, |
79a7046c RS |
4822 | #else |
4823 | 0, | |
4824 | #endif | |
4825 | #ifdef XK_dead_caron | |
e9bf89a0 | 4826 | XK_dead_caron, |
79a7046c RS |
4827 | #else |
4828 | 0, | |
4829 | #endif | |
4830 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4831 | XK_dead_doubleacute, |
79a7046c RS |
4832 | #else |
4833 | 0, | |
4834 | #endif | |
4835 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4836 | XK_dead_abovedot, |
79a7046c RS |
4837 | #else |
4838 | 0, | |
4839 | #endif | |
ed3230db DL |
4840 | #ifdef XK_dead_abovering |
4841 | XK_dead_abovering, | |
4842 | #else | |
4843 | 0, | |
4844 | #endif | |
4845 | #ifdef XK_dead_iota | |
4846 | XK_dead_iota, | |
4847 | #else | |
4848 | 0, | |
4849 | #endif | |
4850 | #ifdef XK_dead_belowdot | |
4851 | XK_dead_belowdot, | |
4852 | #else | |
4853 | 0, | |
4854 | #endif | |
4855 | #ifdef XK_dead_voiced_sound | |
4856 | XK_dead_voiced_sound, | |
4857 | #else | |
4858 | 0, | |
4859 | #endif | |
4860 | #ifdef XK_dead_semivoiced_sound | |
4861 | XK_dead_semivoiced_sound, | |
4862 | #else | |
4863 | 0, | |
4864 | #endif | |
4865 | #ifdef XK_dead_hook | |
4866 | XK_dead_hook, | |
4867 | #else | |
4868 | 0, | |
4869 | #endif | |
4870 | #ifdef XK_dead_horn | |
4871 | XK_dead_horn, | |
4872 | #else | |
4873 | 0, | |
4874 | #endif | |
e9bf89a0 RS |
4875 | }; |
4876 | ||
4877 | /* This is a list of Lisp names for special "accent" characters. | |
4878 | It parallels lispy_accent_codes. */ | |
4879 | ||
4880 | static char *lispy_accent_keys[] = | |
4881 | { | |
4882 | "dead-circumflex", | |
4883 | "dead-grave", | |
4884 | "dead-tilde", | |
4885 | "dead-diaeresis", | |
4886 | "dead-macron", | |
4887 | "dead-degree", | |
4888 | "dead-acute", | |
4889 | "dead-cedilla", | |
4890 | "dead-breve", | |
4891 | "dead-ogonek", | |
4892 | "dead-caron", | |
4893 | "dead-doubleacute", | |
4894 | "dead-abovedot", | |
ed3230db DL |
4895 | "dead-abovering", |
4896 | "dead-iota", | |
4897 | "dead-belowdot", | |
4898 | "dead-voiced-sound", | |
4899 | "dead-semivoiced-sound", | |
4900 | "dead-hook", | |
4901 | "dead-horn", | |
e9bf89a0 RS |
4902 | }; |
4903 | ||
e98a93eb GV |
4904 | #ifdef HAVE_NTGUI |
4905 | #define FUNCTION_KEY_OFFSET 0x0 | |
4906 | ||
4907 | char *lispy_function_keys[] = | |
4908 | { | |
4909 | 0, /* 0 */ | |
c60ee5e7 | 4910 | |
e98a93eb GV |
4911 | 0, /* VK_LBUTTON 0x01 */ |
4912 | 0, /* VK_RBUTTON 0x02 */ | |
4913 | "cancel", /* VK_CANCEL 0x03 */ | |
4914 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4915 | |
e98a93eb | 4916 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4917 | |
e98a93eb GV |
4918 | "backspace", /* VK_BACK 0x08 */ |
4919 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4920 | |
e98a93eb | 4921 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4922 | |
e98a93eb GV |
4923 | "clear", /* VK_CLEAR 0x0C */ |
4924 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4925 | |
e98a93eb | 4926 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4927 | |
1161d367 GV |
4928 | 0, /* VK_SHIFT 0x10 */ |
4929 | 0, /* VK_CONTROL 0x11 */ | |
4930 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4931 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4932 | "capslock", /* VK_CAPITAL 0x14 */ |
ba991a0e JR |
4933 | "kana", /* VK_KANA/VK_HANGUL 0x15 */ |
4934 | 0, /* 0x16 */ | |
4935 | "junja", /* VK_JUNJA 0x17 */ | |
4936 | "final", /* VK_FINAL 0x18 */ | |
4937 | "kanji", /* VK_KANJI/VK_HANJA 0x19 */ | |
4938 | 0, /* 0x1A */ | |
1161d367 | 4939 | "escape", /* VK_ESCAPE 0x1B */ |
ba991a0e JR |
4940 | "convert", /* VK_CONVERT 0x1C */ |
4941 | "non-convert", /* VK_NONCONVERT 0x1D */ | |
4942 | "accept", /* VK_ACCEPT 0x1E */ | |
4943 | "mode-change", /* VK_MODECHANGE 0x1F */ | |
e98a93eb GV |
4944 | 0, /* VK_SPACE 0x20 */ |
4945 | "prior", /* VK_PRIOR 0x21 */ | |
4946 | "next", /* VK_NEXT 0x22 */ | |
4947 | "end", /* VK_END 0x23 */ | |
4948 | "home", /* VK_HOME 0x24 */ | |
4949 | "left", /* VK_LEFT 0x25 */ | |
4950 | "up", /* VK_UP 0x26 */ | |
4951 | "right", /* VK_RIGHT 0x27 */ | |
4952 | "down", /* VK_DOWN 0x28 */ | |
4953 | "select", /* VK_SELECT 0x29 */ | |
4954 | "print", /* VK_PRINT 0x2A */ | |
4955 | "execute", /* VK_EXECUTE 0x2B */ | |
4956 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4957 | "insert", /* VK_INSERT 0x2D */ | |
4958 | "delete", /* VK_DELETE 0x2E */ | |
4959 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4960 | |
e98a93eb | 4961 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4962 | |
e98a93eb | 4963 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4964 | |
e98a93eb | 4965 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4966 | |
e98a93eb | 4967 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4968 | |
4969 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4970 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4971 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4972 | |
e376f90d RS |
4973 | "lwindow", /* VK_LWIN 0x5B */ |
4974 | "rwindow", /* VK_RWIN 0x5C */ | |
4975 | "apps", /* VK_APPS 0x5D */ | |
ba991a0e JR |
4976 | 0, /* 0x5E */ |
4977 | "sleep", | |
e98a93eb GV |
4978 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4979 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4980 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4981 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4982 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4983 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4984 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4985 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4986 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4987 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4988 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4989 | "kp-add", /* VK_ADD 0x6B */ | |
4990 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4991 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4992 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4993 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4994 | "f1", /* VK_F1 0x70 */ | |
4995 | "f2", /* VK_F2 0x71 */ | |
4996 | "f3", /* VK_F3 0x72 */ | |
4997 | "f4", /* VK_F4 0x73 */ | |
4998 | "f5", /* VK_F5 0x74 */ | |
4999 | "f6", /* VK_F6 0x75 */ | |
5000 | "f7", /* VK_F7 0x76 */ | |
5001 | "f8", /* VK_F8 0x77 */ | |
5002 | "f9", /* VK_F9 0x78 */ | |
5003 | "f10", /* VK_F10 0x79 */ | |
5004 | "f11", /* VK_F11 0x7A */ | |
5005 | "f12", /* VK_F12 0x7B */ | |
5006 | "f13", /* VK_F13 0x7C */ | |
5007 | "f14", /* VK_F14 0x7D */ | |
5008 | "f15", /* VK_F15 0x7E */ | |
5009 | "f16", /* VK_F16 0x7F */ | |
5010 | "f17", /* VK_F17 0x80 */ | |
5011 | "f18", /* VK_F18 0x81 */ | |
5012 | "f19", /* VK_F19 0x82 */ | |
5013 | "f20", /* VK_F20 0x83 */ | |
5014 | "f21", /* VK_F21 0x84 */ | |
5015 | "f22", /* VK_F22 0x85 */ | |
5016 | "f23", /* VK_F23 0x86 */ | |
5017 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 5018 | |
e98a93eb GV |
5019 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
5020 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 5021 | |
e98a93eb GV |
5022 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
5023 | "scroll", /* VK_SCROLL 0x91 */ | |
ba991a0e JR |
5024 | /* Not sure where the following block comes from. |
5025 | Windows headers have NEC and Fujitsu specific keys in | |
5026 | this block, but nothing generic. */ | |
e376f90d RS |
5027 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
5028 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
5029 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
5030 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
5031 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
5032 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
5033 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
5034 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
5035 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
5036 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
5037 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
5038 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
5039 | ||
5040 | 0, 0, /* 0x9E .. 0x9F */ | |
5041 | ||
e98a93eb GV |
5042 | /* |
5043 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 5044 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb | 5045 | * No other API or message will distinguish left and right keys this way. |
ba991a0e | 5046 | * 0xA0 .. 0xA5 |
e98a93eb | 5047 | */ |
ba991a0e | 5048 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 5049 | |
ba991a0e JR |
5050 | /* Multimedia keys. These are handled as WM_APPCOMMAND, which allows us |
5051 | to enable them selectively, and gives access to a few more functions. | |
5052 | See lispy_multimedia_keys below. */ | |
5053 | 0, 0, 0, 0, 0, 0, 0, /* 0xA6 .. 0xAC Browser */ | |
5054 | 0, 0, 0, /* 0xAD .. 0xAF Volume */ | |
5055 | 0, 0, 0, 0, /* 0xB0 .. 0xB3 Media */ | |
5056 | 0, 0, 0, 0, /* 0xB4 .. 0xB7 Apps */ | |
c60ee5e7 | 5057 | |
ba991a0e JR |
5058 | /* 0xB8 .. 0xC0 "OEM" keys - all seem to be punctuation. */ |
5059 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 5060 | |
ba991a0e JR |
5061 | /* 0xC1 - 0xDA unallocated, 0xDB-0xDF more OEM keys */ |
5062 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
5063 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 5064 | |
ba991a0e JR |
5065 | 0, /* 0xE0 */ |
5066 | "ax", /* VK_OEM_AX 0xE1 */ | |
5067 | 0, /* VK_OEM_102 0xE2 */ | |
5068 | "ico-help", /* VK_ICO_HELP 0xE3 */ | |
5069 | "ico-00", /* VK_ICO_00 0xE4 */ | |
5070 | 0, /* VK_PROCESSKEY 0xE5 */ | |
5071 | "ico-clear", /* VK_ICO_CLEAR 0xE6 */ | |
5072 | "packet", /* VK_PACKET 0xE7 */ | |
5073 | 0, /* 0xE8 */ | |
5074 | "reset", /* VK_OEM_RESET 0xE9 */ | |
5075 | "jump", /* VK_OEM_JUMP 0xEA */ | |
5076 | "oem-pa1", /* VK_OEM_PA1 0xEB */ | |
5077 | "oem-pa2", /* VK_OEM_PA2 0xEC */ | |
5078 | "oem-pa3", /* VK_OEM_PA3 0xED */ | |
5079 | "wsctrl", /* VK_OEM_WSCTRL 0xEE */ | |
5080 | "cusel", /* VK_OEM_CUSEL 0xEF */ | |
5081 | "oem-attn", /* VK_OEM_ATTN 0xF0 */ | |
5082 | "finish", /* VK_OEM_FINISH 0xF1 */ | |
5083 | "copy", /* VK_OEM_COPY 0xF2 */ | |
5084 | "auto", /* VK_OEM_AUTO 0xF3 */ | |
5085 | "enlw", /* VK_OEM_ENLW 0xF4 */ | |
5086 | "backtab", /* VK_OEM_BACKTAB 0xF5 */ | |
e98a93eb GV |
5087 | "attn", /* VK_ATTN 0xF6 */ |
5088 | "crsel", /* VK_CRSEL 0xF7 */ | |
5089 | "exsel", /* VK_EXSEL 0xF8 */ | |
5090 | "ereof", /* VK_EREOF 0xF9 */ | |
5091 | "play", /* VK_PLAY 0xFA */ | |
5092 | "zoom", /* VK_ZOOM 0xFB */ | |
5093 | "noname", /* VK_NONAME 0xFC */ | |
5094 | "pa1", /* VK_PA1 0xFD */ | |
5095 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 5096 | 0 /* 0xFF */ |
e98a93eb GV |
5097 | }; |
5098 | ||
ba991a0e JR |
5099 | /* Some of these duplicate the "Media keys" on newer keyboards, |
5100 | but they are delivered to the application in a different way. */ | |
5101 | static char *lispy_multimedia_keys[] = | |
5102 | { | |
5103 | 0, | |
5104 | "browser-back", | |
5105 | "browser-forward", | |
5106 | "browser-refresh", | |
5107 | "browser-stop", | |
5108 | "browser-search", | |
5109 | "browser-favorites", | |
5110 | "browser-home", | |
5111 | "volume-mute", | |
5112 | "volume-down", | |
5113 | "volume-up", | |
5114 | "media-next", | |
5115 | "media-previous", | |
5116 | "media-stop", | |
5117 | "media-play-pause", | |
5118 | "mail", | |
5119 | "media-select", | |
5120 | "app-1", | |
5121 | "app-2", | |
5122 | "bass-down", | |
5123 | "bass-boost", | |
5124 | "bass-up", | |
5125 | "treble-down", | |
5126 | "treble-up", | |
5127 | "mic-volume-mute", | |
5128 | "mic-volume-down", | |
5129 | "mic-volume-up", | |
5130 | "help", | |
5131 | "find", | |
5132 | "new", | |
5133 | "open", | |
5134 | "close", | |
5135 | "save", | |
5136 | "print", | |
5137 | "undo", | |
5138 | "redo", | |
5139 | "copy", | |
5140 | "cut", | |
5141 | "paste", | |
5142 | "mail-reply", | |
5143 | "mail-forward", | |
5144 | "mail-send", | |
5145 | "spell-check", | |
5146 | "toggle-dictate-command", | |
5147 | "mic-toggle", | |
5148 | "correction-list", | |
5149 | "media-play", | |
5150 | "media-pause", | |
5151 | "media-record", | |
5152 | "media-fast-forward", | |
5153 | "media-rewind", | |
5154 | "media-channel-up", | |
5155 | "media-channel-down" | |
5156 | }; | |
5157 | ||
04f215f0 | 5158 | #else /* not HAVE_NTGUI */ |
e98a93eb | 5159 | |
ed3230db DL |
5160 | /* This should be dealt with in XTread_socket now, and that doesn't |
5161 | depend on the client system having the Kana syms defined. See also | |
5162 | the XK_kana_A case below. */ | |
5163 | #if 0 | |
37cd9f30 KH |
5164 | #ifdef XK_kana_A |
5165 | static char *lispy_kana_keys[] = | |
5166 | { | |
5167 | /* X Keysym value */ | |
5168 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
5169 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
5170 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
5171 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
5172 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
5173 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
5174 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
5175 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
5176 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
5177 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 5178 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
5179 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
5180 | "kana-i", "kana-u", "kana-e", "kana-o", | |
5181 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
5182 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
5183 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
5184 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
5185 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
5186 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
5187 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
5188 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
5189 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
5190 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
5191 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
5192 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
5193 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
5194 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
5195 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
5196 | }; | |
5197 | #endif /* XK_kana_A */ | |
ed3230db | 5198 | #endif /* 0 */ |
37cd9f30 | 5199 | |
04f215f0 RS |
5200 | #define FUNCTION_KEY_OFFSET 0xff00 |
5201 | ||
284f4730 JB |
5202 | /* You'll notice that this table is arranged to be conveniently |
5203 | indexed by X Windows keysym values. */ | |
5204 | static char *lispy_function_keys[] = | |
5205 | { | |
5206 | /* X Keysym value */ | |
5207 | ||
75045dcb RS |
5208 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
5209 | "backspace", "tab", "linefeed", "clear", | |
5210 | 0, "return", 0, 0, | |
5211 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
5212 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 5213 | 0, 0, 0, 0, |
75045dcb RS |
5214 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
5215 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
5216 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
5217 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
5218 | "eisu-toggle", /* 0xff30...3f */ | |
5219 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
5220 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
5221 | ||
75045dcb RS |
5222 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
5223 | "down", "prior", "next", "end", | |
5224 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5225 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
5226 | "print", | |
5227 | "execute", | |
5228 | "insert", | |
5229 | 0, /* 0xff64 */ | |
5230 | "undo", | |
5231 | "redo", | |
5232 | "menu", | |
5233 | "find", | |
5234 | "cancel", | |
5235 | "help", | |
5236 | "break", /* 0xff6b */ | |
5237 | ||
75045dcb RS |
5238 | 0, 0, 0, 0, |
5239 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
5240 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
5241 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
5242 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5243 | "kp-tab", /* 0xff89 */ | |
5244 | 0, 0, 0, | |
5245 | "kp-enter", /* 0xff8d */ | |
5246 | 0, 0, 0, | |
5247 | "kp-f1", /* 0xff91 */ | |
5248 | "kp-f2", | |
5249 | "kp-f3", | |
5250 | "kp-f4", | |
872157e7 RS |
5251 | "kp-home", /* 0xff95 */ |
5252 | "kp-left", | |
5253 | "kp-up", | |
5254 | "kp-right", | |
5255 | "kp-down", | |
5256 | "kp-prior", /* kp-page-up */ | |
5257 | "kp-next", /* kp-page-down */ | |
5258 | "kp-end", | |
5259 | "kp-begin", | |
5260 | "kp-insert", | |
5261 | "kp-delete", | |
5262 | 0, /* 0xffa0 */ | |
5263 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5264 | "kp-multiply", /* 0xffaa */ |
5265 | "kp-add", | |
5266 | "kp-separator", | |
5267 | "kp-subtract", | |
5268 | "kp-decimal", | |
5269 | "kp-divide", /* 0xffaf */ | |
5270 | "kp-0", /* 0xffb0 */ | |
5271 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
5272 | 0, /* 0xffba */ | |
5273 | 0, 0, | |
5274 | "kp-equal", /* 0xffbd */ | |
5275 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
5276 | "f2", |
5277 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
5278 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
5279 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
5280 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
5281 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
5282 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5283 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
5284 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 5285 | }; |
284f4730 | 5286 | |
04f215f0 RS |
5287 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
5288 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
5289 | ||
5290 | static char *iso_lispy_function_keys[] = | |
5291 | { | |
5292 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
5293 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
5294 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
5295 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
5296 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
5297 | "iso-move-line-up", "iso-move-line-down", |
5298 | "iso-partial-line-up", "iso-partial-line-down", | |
5299 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
5300 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
5301 | "iso-release-margin-left", "iso-release-margin-right", | |
5302 | "iso-release-both-margins", | |
5303 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
5304 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
5305 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
5306 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
5307 | }; | |
5308 | ||
5309 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 5310 | |
8e1e4240 | 5311 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 5312 | |
8006e4bb JR |
5313 | static char *lispy_wheel_names[] = |
5314 | { | |
13899bc1 | 5315 | "wheel-up", "wheel-down", "wheel-left", "wheel-right" |
8006e4bb JR |
5316 | }; |
5317 | ||
a24dc617 RS |
5318 | /* drag-n-drop events are generated when a set of selected files are |
5319 | dragged from another application and dropped onto an Emacs window. */ | |
5320 | static char *lispy_drag_n_drop_names[] = | |
5321 | { | |
5322 | "drag-n-drop" | |
5323 | }; | |
5324 | ||
3c370943 | 5325 | /* Scroll bar parts. */ |
4bb994d1 | 5326 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 5327 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 5328 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 5329 | |
3c370943 JB |
5330 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
5331 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 5332 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 5333 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
5334 | }; |
5335 | ||
7b4aedb9 | 5336 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 5337 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
5338 | |
5339 | The elements have the form | |
5340 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
5341 | where REST is the cdr of a position as it would be reported in the event. | |
5342 | ||
5343 | The make_lispy_event function stores positions here to tell the | |
5344 | difference between click and drag events, and to store the starting | |
5345 | location to be included in drag events. */ | |
5346 | ||
5347 | static Lisp_Object button_down_location; | |
88cb0656 | 5348 | |
fbcd35bd JB |
5349 | /* Information about the most recent up-going button event: Which |
5350 | button, what location, and what time. */ | |
5351 | ||
559f9d04 RS |
5352 | static int last_mouse_button; |
5353 | static int last_mouse_x; | |
5354 | static int last_mouse_y; | |
5355 | static unsigned long button_down_time; | |
fbcd35bd | 5356 | |
222d557c GM |
5357 | /* The maximum time between clicks to make a double-click, or Qnil to |
5358 | disable double-click detection, or Qt for no time limit. */ | |
5359 | ||
564dc952 | 5360 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 5361 | |
222d557c GM |
5362 | /* Maximum number of pixels the mouse may be moved between clicks |
5363 | to make a double-click. */ | |
5364 | ||
31ade731 | 5365 | EMACS_INT double_click_fuzz; |
222d557c | 5366 | |
fbcd35bd JB |
5367 | /* The number of clicks in this multiple-click. */ |
5368 | ||
5369 | int double_click_count; | |
5370 | ||
6b61353c KH |
5371 | /* Return position of a mouse click or wheel event */ |
5372 | ||
5373 | static Lisp_Object | |
5374 | make_lispy_position (f, x, y, time) | |
5375 | struct frame *f; | |
5376 | Lisp_Object *x, *y; | |
5377 | unsigned long time; | |
5378 | { | |
5379 | Lisp_Object window; | |
5380 | enum window_part part; | |
5381 | Lisp_Object posn = Qnil; | |
5382 | Lisp_Object extra_info = Qnil; | |
5383 | int wx, wy; | |
5384 | ||
5385 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
5386 | if (f) | |
5387 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
5388 | &part, &wx, &wy, 0); | |
5389 | else | |
5390 | window = Qnil; | |
5391 | ||
5392 | if (WINDOWP (window)) | |
5393 | { | |
5394 | /* It's a click in window window at frame coordinates (x,y) */ | |
5395 | struct window *w = XWINDOW (window); | |
5396 | Lisp_Object string_info = Qnil; | |
5397 | int textpos = -1, rx = -1, ry = -1; | |
5398 | int dx = -1, dy = -1; | |
5399 | int width = -1, height = -1; | |
5400 | Lisp_Object object = Qnil; | |
5401 | ||
5402 | /* Set event coordinates to window-relative coordinates | |
5403 | for constructing the Lisp event below. */ | |
5404 | XSETINT (*x, wx); | |
5405 | XSETINT (*y, wy); | |
5406 | ||
6507c4c7 KS |
5407 | if (part == ON_TEXT) |
5408 | { | |
5409 | wx += WINDOW_LEFT_MARGIN_WIDTH (w); | |
5410 | } | |
5411 | else if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
6b61353c KH |
5412 | { |
5413 | /* Mode line or header line. Look for a string under | |
5414 | the mouse that may have a `local-map' property. */ | |
5415 | Lisp_Object string; | |
5416 | int charpos; | |
5417 | ||
5418 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5419 | rx = wx, ry = wy; | |
5420 | string = mode_line_string (w, part, &rx, &ry, &charpos, | |
5421 | &object, &dx, &dy, &width, &height); | |
5422 | if (STRINGP (string)) | |
5423 | string_info = Fcons (string, make_number (charpos)); | |
93730342 CY |
5424 | if (w == XWINDOW (selected_window) |
5425 | && current_buffer == XBUFFER (w->buffer)) | |
6b61353c KH |
5426 | textpos = PT; |
5427 | else | |
5428 | textpos = XMARKER (w->pointm)->charpos; | |
5429 | } | |
5430 | else if (part == ON_VERTICAL_BORDER) | |
5431 | { | |
5432 | posn = Qvertical_line; | |
5433 | wx = -1; | |
5434 | dx = 0; | |
5435 | width = 1; | |
5436 | } | |
5437 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5438 | { | |
5439 | Lisp_Object string; | |
5440 | int charpos; | |
5441 | ||
5442 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
5443 | rx = wx, ry = wy; | |
5444 | string = marginal_area_string (w, part, &rx, &ry, &charpos, | |
5445 | &object, &dx, &dy, &width, &height); | |
5446 | if (STRINGP (string)) | |
5447 | string_info = Fcons (string, make_number (charpos)); | |
a65fc2c3 KS |
5448 | if (part == ON_LEFT_MARGIN) |
5449 | wx = 0; | |
5450 | else | |
5451 | wx = window_box_right_offset (w, TEXT_AREA) - 1; | |
6b61353c | 5452 | } |
a65fc2c3 | 5453 | else if (part == ON_LEFT_FRINGE) |
6b61353c | 5454 | { |
a65fc2c3 | 5455 | posn = Qleft_fringe; |
6b61353c KH |
5456 | rx = 0; |
5457 | dx = wx; | |
a65fc2c3 KS |
5458 | wx = (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) |
5459 | ? 0 | |
5460 | : window_box_width (w, LEFT_MARGIN_AREA)); | |
5461 | dx -= wx; | |
3d566707 | 5462 | } |
a65fc2c3 | 5463 | else if (part == ON_RIGHT_FRINGE) |
3d566707 | 5464 | { |
a65fc2c3 | 5465 | posn = Qright_fringe; |
3d566707 | 5466 | rx = 0; |
45de137a | 5467 | dx = wx; |
a65fc2c3 KS |
5468 | wx = (window_box_width (w, LEFT_MARGIN_AREA) |
5469 | + window_box_width (w, TEXT_AREA) | |
5470 | + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5471 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5472 | : 0)); | |
5473 | dx -= wx; | |
5474 | } | |
5475 | else | |
5476 | { | |
5477 | /* Note: We have no special posn for part == ON_SCROLL_BAR. */ | |
5478 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); | |
6b61353c KH |
5479 | } |
5480 | ||
5481 | if (textpos < 0) | |
5482 | { | |
5483 | Lisp_Object string2, object2 = Qnil; | |
5484 | struct display_pos p; | |
5485 | int dx2, dy2; | |
5486 | int width2, height2; | |
6b61353c KH |
5487 | string2 = buffer_posn_from_coords (w, &wx, &wy, &p, |
5488 | &object2, &dx2, &dy2, | |
5489 | &width2, &height2); | |
5490 | textpos = CHARPOS (p.pos); | |
5491 | if (rx < 0) rx = wx; | |
5492 | if (ry < 0) ry = wy; | |
5493 | if (dx < 0) dx = dx2; | |
5494 | if (dy < 0) dy = dy2; | |
5495 | if (width < 0) width = width2; | |
5496 | if (height < 0) height = height2; | |
5497 | ||
5498 | if (NILP (posn)) | |
5499 | { | |
5500 | posn = make_number (textpos); | |
5501 | if (STRINGP (string2)) | |
5502 | string_info = Fcons (string2, | |
5503 | make_number (CHARPOS (p.string_pos))); | |
5504 | } | |
5505 | if (NILP (object)) | |
5506 | object = object2; | |
5507 | } | |
5508 | ||
5509 | #ifdef HAVE_WINDOW_SYSTEM | |
5510 | if (IMAGEP (object)) | |
5511 | { | |
5512 | Lisp_Object image_map, hotspot; | |
5513 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5514 | !NILP (image_map)) | |
5515 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5516 | CONSP (hotspot)) | |
5517 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5518 | posn = XCAR (hotspot); | |
5519 | } | |
5520 | #endif | |
5521 | ||
5522 | /* Object info */ | |
5523 | extra_info = Fcons (object, | |
5524 | Fcons (Fcons (make_number (dx), | |
5525 | make_number (dy)), | |
5526 | Fcons (Fcons (make_number (width), | |
5527 | make_number (height)), | |
5528 | Qnil))); | |
5529 | ||
5530 | /* String info */ | |
5531 | extra_info = Fcons (string_info, | |
5532 | Fcons (make_number (textpos), | |
5533 | Fcons (Fcons (make_number (rx), | |
5534 | make_number (ry)), | |
5535 | extra_info))); | |
5536 | } | |
5537 | else if (f != 0) | |
5538 | { | |
5539 | XSETFRAME (window, f); | |
5540 | } | |
5541 | else | |
5542 | { | |
5543 | window = Qnil; | |
5544 | XSETFASTINT (*x, 0); | |
5545 | XSETFASTINT (*y, 0); | |
5546 | } | |
5547 | ||
5548 | return Fcons (window, | |
5549 | Fcons (posn, | |
5550 | Fcons (Fcons (*x, *y), | |
5551 | Fcons (make_number (time), | |
5552 | extra_info)))); | |
5553 | } | |
5554 | ||
284f4730 JB |
5555 | /* Given a struct input_event, build the lisp event which represents |
5556 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5557 | movement buffer, which should have a movement event in it. |
5558 | ||
5559 | Note that events must be passed to this function in the order they | |
5560 | are received; this function stores the location of button presses | |
5561 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5562 | |
5563 | static Lisp_Object | |
5564 | make_lispy_event (event) | |
5565 | struct input_event *event; | |
5566 | { | |
79a7046c RS |
5567 | int i; |
5568 | ||
0220c518 | 5569 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5570 | { |
284f4730 | 5571 | /* A simple keystroke. */ |
3b8f9651 | 5572 | case ASCII_KEYSTROKE_EVENT: |
3b8f9651 | 5573 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5574 | { |
5575 | Lisp_Object lispy_c; | |
24d80a06 | 5576 | int c = event->code; |
6d0867e5 SM |
5577 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
5578 | { | |
5579 | c &= 0377; | |
5580 | eassert (c == event->code); | |
5581 | /* Turn ASCII characters into control characters | |
5582 | when proper. */ | |
5583 | if (event->modifiers & ctrl_modifier) | |
5584 | { | |
5585 | c = make_ctrl_char (c); | |
5586 | event->modifiers &= ~ctrl_modifier; | |
5587 | } | |
5588 | } | |
a50e723f | 5589 | |
6d0867e5 SM |
5590 | /* Add in the other modifier bits. The shift key was taken care |
5591 | of by the X code. */ | |
24d80a06 SM |
5592 | c |= (event->modifiers |
5593 | & (meta_modifier | alt_modifier | |
5594 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
6d0867e5 SM |
5595 | /* Distinguish Shift-SPC from SPC. */ |
5596 | if ((event->code) == 040 | |
5597 | && event->modifiers & shift_modifier) | |
5598 | c |= shift_modifier; | |
24d80a06 SM |
5599 | button_down_time = 0; |
5600 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5601 | return lispy_c; |
5602 | } | |
5603 | ||
83d92ee0 DR |
5604 | #ifdef HAVE_NS |
5605 | /* NS_NONKEY_EVENTs are just like NON_ASCII_KEYSTROKE_EVENTs, | |
5606 | except that they are non-key events (last-nonmenu-event is nil). */ | |
5607 | case NS_NONKEY_EVENT: | |
5608 | #endif | |
5609 | ||
284f4730 JB |
5610 | /* A function key. The symbol may need to have modifier prefixes |
5611 | tacked onto it. */ | |
3b8f9651 | 5612 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5613 | button_down_time = 0; |
e9bf89a0 RS |
5614 | |
5615 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5616 | if (event->code == lispy_accent_codes[i]) | |
5617 | return modify_event_symbol (i, | |
5618 | event->modifiers, | |
80e4aa30 | 5619 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5620 | lispy_accent_keys, &accent_key_syms, |
5621 | (sizeof (lispy_accent_keys) | |
5622 | / sizeof (lispy_accent_keys[0]))); | |
5623 | ||
ed3230db | 5624 | #if 0 |
37cd9f30 KH |
5625 | #ifdef XK_kana_A |
5626 | if (event->code >= 0x400 && event->code < 0x500) | |
5627 | return modify_event_symbol (event->code - 0x400, | |
5628 | event->modifiers & ~shift_modifier, | |
5629 | Qfunction_key, Qnil, | |
5630 | lispy_kana_keys, &func_key_syms, | |
5631 | (sizeof (lispy_kana_keys) | |
5632 | / sizeof (lispy_kana_keys[0]))); | |
5633 | #endif /* XK_kana_A */ | |
ed3230db | 5634 | #endif /* 0 */ |
37cd9f30 | 5635 | |
111c4138 | 5636 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5637 | if (event->code < FUNCTION_KEY_OFFSET |
5638 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5639 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5640 | event->modifiers, | |
5641 | Qfunction_key, Qnil, | |
5642 | iso_lispy_function_keys, &func_key_syms, | |
5643 | (sizeof (iso_lispy_function_keys) | |
5644 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5645 | #endif |
656280a6 | 5646 | |
4c8bc894 SM |
5647 | /* Handle system-specific or unknown keysyms. */ |
5648 | if (event->code & (1 << 28) | |
5649 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5650 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5651 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5652 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5653 | { |
4c8bc894 SM |
5654 | /* We need to use an alist rather than a vector as the cache |
5655 | since we can't make a vector long enuf. */ | |
5656 | if (NILP (current_kboard->system_key_syms)) | |
5657 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5658 | return modify_event_symbol (event->code, | |
5659 | event->modifiers, | |
5660 | Qfunction_key, | |
5661 | current_kboard->Vsystem_key_alist, | |
5662 | 0, ¤t_kboard->system_key_syms, | |
5663 | (unsigned) -1); | |
656280a6 | 5664 | } |
656280a6 GM |
5665 | |
5666 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5667 | event->modifiers, | |
5668 | Qfunction_key, Qnil, | |
5669 | lispy_function_keys, &func_key_syms, | |
5670 | (sizeof (lispy_function_keys) | |
5671 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5672 | |
ba991a0e JR |
5673 | #ifdef WINDOWSNT |
5674 | case MULTIMEDIA_KEY_EVENT: | |
5675 | if (event->code < (sizeof (lispy_multimedia_keys) | |
5676 | / sizeof (lispy_multimedia_keys[0])) | |
5677 | && event->code > 0 && lispy_multimedia_keys[event->code]) | |
5678 | { | |
5679 | return modify_event_symbol (event->code, event->modifiers, | |
5680 | Qfunction_key, Qnil, | |
5681 | lispy_multimedia_keys, &func_key_syms, | |
5682 | (sizeof (lispy_multimedia_keys) | |
5683 | / sizeof (lispy_multimedia_keys[0]))); | |
5684 | } | |
5685 | return Qnil; | |
5686 | #endif | |
5687 | ||
514354e9 | 5688 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5689 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5690 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5691 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5692 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5693 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5694 | #endif |
284f4730 | 5695 | { |
e9bf89a0 | 5696 | int button = event->code; |
559f9d04 | 5697 | int is_double; |
7b4aedb9 | 5698 | Lisp_Object position; |
dbc4e1c1 JB |
5699 | Lisp_Object *start_pos_ptr; |
5700 | Lisp_Object start_pos; | |
284f4730 | 5701 | |
8c907a56 GM |
5702 | position = Qnil; |
5703 | ||
7b4aedb9 | 5704 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5705 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5706 | { |
c5cf2109 | 5707 | struct frame *f = XFRAME (event->frame_or_window); |
edfda783 | 5708 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
9e20143a | 5709 | int row, column; |
6b61353c | 5710 | #endif |
9e20143a | 5711 | |
5da3133a RS |
5712 | /* Ignore mouse events that were made on frame that |
5713 | have been deleted. */ | |
5714 | if (! FRAME_LIVE_P (f)) | |
5715 | return Qnil; | |
5716 | ||
edfda783 | 5717 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
7ee32cda GM |
5718 | /* EVENT->x and EVENT->y are frame-relative pixel |
5719 | coordinates at this place. Under old redisplay, COLUMN | |
5720 | and ROW are set to frame relative glyph coordinates | |
5721 | which are then used to determine whether this click is | |
5722 | in a menu (non-toolkit version). */ | |
5723 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5724 | &column, &row, NULL, 1); | |
7b4aedb9 | 5725 | |
eef045bf RS |
5726 | /* In the non-toolkit version, clicks on the menu bar |
5727 | are ordinary button events in the event buffer. | |
5728 | Distinguish them, and invoke the menu. | |
5729 | ||
5730 | (In the toolkit version, the toolkit handles the menu bar | |
5731 | and Emacs doesn't know about it until after the user | |
5732 | makes a selection.) */ | |
2ee250ec RS |
5733 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5734 | && (event->modifiers & down_modifier)) | |
bb936752 | 5735 | { |
b7c49376 | 5736 | Lisp_Object items, item; |
0a0e8fe6 RS |
5737 | int hpos; |
5738 | int i; | |
5739 | ||
2ee250ec | 5740 | #if 0 |
0a0e8fe6 RS |
5741 | /* Activate the menu bar on the down event. If the |
5742 | up event comes in before the menu code can deal with it, | |
5743 | just ignore it. */ | |
5744 | if (! (event->modifiers & down_modifier)) | |
5745 | return Qnil; | |
2ee250ec | 5746 | #endif |
0aafc975 | 5747 | |
7ee32cda | 5748 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5749 | item = Qnil; |
5ec75a55 | 5750 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5751 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5752 | { |
5753 | Lisp_Object pos, string; | |
129004d3 GM |
5754 | string = AREF (items, i + 1); |
5755 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5756 | if (NILP (string)) |
5757 | break; | |
9e20143a | 5758 | if (column >= XINT (pos) |
d5db4077 | 5759 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5760 | { |
129004d3 | 5761 | item = AREF (items, i); |
b7c49376 RS |
5762 | break; |
5763 | } | |
5ec75a55 | 5764 | } |
9e20143a | 5765 | |
7ee32cda GM |
5766 | /* ELisp manual 2.4b says (x y) are window relative but |
5767 | code says they are frame-relative. */ | |
5ec75a55 RS |
5768 | position |
5769 | = Fcons (event->frame_or_window, | |
5770 | Fcons (Qmenu_bar, | |
5771 | Fcons (Fcons (event->x, event->y), | |
5772 | Fcons (make_number (event->timestamp), | |
5773 | Qnil)))); | |
5774 | ||
b7c49376 | 5775 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5776 | } |
edfda783 | 5777 | #endif /* not USE_X_TOOLKIT && not USE_GTK && not HAVE_NS */ |
0aafc975 | 5778 | |
6b61353c KH |
5779 | position = make_lispy_position (f, &event->x, &event->y, |
5780 | event->timestamp); | |
284f4730 | 5781 | } |
7ee32cda | 5782 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5783 | else |
88cb0656 | 5784 | { |
7ee32cda | 5785 | /* It's a scrollbar click. */ |
6b61353c | 5786 | Lisp_Object window; |
9e20143a RS |
5787 | Lisp_Object portion_whole; |
5788 | Lisp_Object part; | |
5789 | ||
5790 | window = event->frame_or_window; | |
5791 | portion_whole = Fcons (event->x, event->y); | |
5792 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5793 | |
db08707d RS |
5794 | position |
5795 | = Fcons (window, | |
5796 | Fcons (Qvertical_scroll_bar, | |
5797 | Fcons (portion_whole, | |
5798 | Fcons (make_number (event->timestamp), | |
5799 | Fcons (part, Qnil))))); | |
88cb0656 | 5800 | } |
7ee32cda | 5801 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5802 | |
129004d3 | 5803 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5804 | { |
5805 | button_down_location = larger_vector (button_down_location, | |
5806 | button + 1, Qnil); | |
5807 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5808 | } | |
c60ee5e7 | 5809 | |
129004d3 | 5810 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5811 | start_pos = *start_pos_ptr; |
5812 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5813 | |
c5cf2109 GM |
5814 | { |
5815 | /* On window-system frames, use the value of | |
5816 | double-click-fuzz as is. On other frames, interpret it | |
5817 | as a multiple of 1/8 characters. */ | |
5818 | struct frame *f; | |
5819 | int fuzz; | |
5820 | ||
5821 | if (WINDOWP (event->frame_or_window)) | |
5822 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5823 | else if (FRAMEP (event->frame_or_window)) | |
5824 | f = XFRAME (event->frame_or_window); | |
5825 | else | |
5826 | abort (); | |
5827 | ||
5828 | if (FRAME_WINDOW_P (f)) | |
5829 | fuzz = double_click_fuzz; | |
5830 | else | |
5831 | fuzz = double_click_fuzz / 8; | |
5832 | ||
5833 | is_double = (button == last_mouse_button | |
1ea40aa2 EZ |
5834 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5835 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
c5cf2109 GM |
5836 | && button_down_time != 0 |
5837 | && (EQ (Vdouble_click_time, Qt) | |
5838 | || (INTEGERP (Vdouble_click_time) | |
5839 | && ((int)(event->timestamp - button_down_time) | |
5840 | < XINT (Vdouble_click_time))))); | |
5841 | } | |
c60ee5e7 | 5842 | |
559f9d04 RS |
5843 | last_mouse_button = button; |
5844 | last_mouse_x = XINT (event->x); | |
5845 | last_mouse_y = XINT (event->y); | |
5846 | ||
7b4aedb9 JB |
5847 | /* If this is a button press, squirrel away the location, so |
5848 | we can decide later whether it was a click or a drag. */ | |
5849 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5850 | { |
5851 | if (is_double) | |
5852 | { | |
5853 | double_click_count++; | |
5854 | event->modifiers |= ((double_click_count > 2) | |
5855 | ? triple_modifier | |
5856 | : double_modifier); | |
5857 | } | |
5858 | else | |
5859 | double_click_count = 1; | |
5860 | button_down_time = event->timestamp; | |
5861 | *start_pos_ptr = Fcopy_alist (position); | |
3b0cdcef | 5862 | ignore_mouse_drag_p = 0; |
559f9d04 | 5863 | } |
7b4aedb9 | 5864 | |
88cb0656 | 5865 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5866 | see if this was a click or a drag. */ |
88cb0656 JB |
5867 | else if (event->modifiers & up_modifier) |
5868 | { | |
129004d3 GM |
5869 | /* If we did not see a down before this up, ignore the up. |
5870 | Probably this happened because the down event chose a | |
5871 | menu item. It would be an annoyance to treat the | |
5872 | release of the button that chose the menu item as a | |
5873 | separate event. */ | |
48e416d4 | 5874 | |
8c18cbfb | 5875 | if (!CONSP (start_pos)) |
48e416d4 RS |
5876 | return Qnil; |
5877 | ||
88cb0656 | 5878 | event->modifiers &= ~up_modifier; |
48e416d4 | 5879 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5880 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5881 | event->modifiers |= click_modifier; |
5882 | else | |
48e416d4 | 5883 | #endif |
dbc4e1c1 | 5884 | { |
9b8eb840 | 5885 | Lisp_Object down; |
d31053f9 | 5886 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5887 | |
d31053f9 RS |
5888 | /* The third element of every position |
5889 | should be the (x,y) pair. */ | |
5890 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5891 | if (CONSP (down) |
5892 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5893 | { |
4156359e SM |
5894 | xdiff = XINT (event->x) - XINT (XCAR (down)); |
5895 | ydiff = XINT (event->y) - XINT (XCDR (down)); | |
d31053f9 RS |
5896 | } |
5897 | ||
3b0cdcef KS |
5898 | if (ignore_mouse_drag_p) |
5899 | { | |
5900 | event->modifiers |= click_modifier; | |
5901 | ignore_mouse_drag_p = 0; | |
5902 | } | |
5903 | else if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5904 | && ydiff < double_click_fuzz && ydiff > - double_click_fuzz | |
4156359e SM |
5905 | /* Maybe the mouse has moved a lot, caused scrolling, and |
5906 | eventually ended up at the same screen position (but | |
5907 | not buffer position) in which case it is a drag, not | |
5908 | a click. */ | |
5909 | /* FIXME: OTOH if the buffer position has changed | |
5910 | because of a timer or process filter rather than | |
5911 | because of mouse movement, it should be considered as | |
5912 | a click. But mouse-drag-region completely ignores | |
5913 | this case and it hasn't caused any real problem, so | |
5914 | it's probably OK to ignore it as well. */ | |
5915 | && EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position)))) | |
d31053f9 | 5916 | /* Mouse hasn't moved (much). */ |
129004d3 | 5917 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5918 | else |
5919 | { | |
d31053f9 RS |
5920 | button_down_time = 0; |
5921 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5922 | } |
c60ee5e7 | 5923 | |
bc536d84 RS |
5924 | /* Don't check is_double; treat this as multiple |
5925 | if the down-event was multiple. */ | |
5926 | if (double_click_count > 1) | |
5927 | event->modifiers |= ((double_click_count > 2) | |
5928 | ? triple_modifier | |
5929 | : double_modifier); | |
dbc4e1c1 | 5930 | } |
88cb0656 JB |
5931 | } |
5932 | else | |
5933 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5934 | the up_modifier set. */ |
88cb0656 JB |
5935 | abort (); |
5936 | ||
88cb0656 | 5937 | { |
7b4aedb9 | 5938 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5939 | Lisp_Object head; |
5940 | ||
5941 | head = modify_event_symbol (button, | |
5942 | event->modifiers, | |
8e1e4240 GM |
5943 | Qmouse_click, Vlispy_mouse_stem, |
5944 | NULL, | |
5945 | &mouse_syms, | |
5946 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5947 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5948 | return Fcons (head, |
5949 | Fcons (start_pos, | |
5950 | Fcons (position, | |
5951 | Qnil))); | |
fbcd35bd JB |
5952 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5953 | return Fcons (head, | |
5954 | Fcons (position, | |
5955 | Fcons (make_number (double_click_count), | |
5956 | Qnil))); | |
88cb0656 JB |
5957 | else |
5958 | return Fcons (head, | |
7b4aedb9 | 5959 | Fcons (position, |
88cb0656 JB |
5960 | Qnil)); |
5961 | } | |
284f4730 | 5962 | } |
db08707d | 5963 | |
8006e4bb | 5964 | case WHEEL_EVENT: |
13899bc1 | 5965 | case HORIZ_WHEEL_EVENT: |
8006e4bb JR |
5966 | { |
5967 | Lisp_Object position; | |
8006e4bb | 5968 | Lisp_Object head; |
6b61353c | 5969 | |
87d386ff | 5970 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5971 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5972 | |
5973 | /* Ignore wheel events that were made on frame that have been | |
5974 | deleted. */ | |
5975 | if (! FRAME_LIVE_P (f)) | |
5976 | return Qnil; | |
5977 | ||
6b61353c KH |
5978 | position = make_lispy_position (f, &event->x, &event->y, |
5979 | event->timestamp); | |
87d386ff | 5980 | |
db9cd97a | 5981 | /* Set double or triple modifiers to indicate the wheel speed. */ |
87d386ff JR |
5982 | { |
5983 | /* On window-system frames, use the value of | |
5984 | double-click-fuzz as is. On other frames, interpret it | |
5985 | as a multiple of 1/8 characters. */ | |
5986 | struct frame *f; | |
5987 | int fuzz; | |
3208cb35 | 5988 | int symbol_num; |
87d386ff JR |
5989 | int is_double; |
5990 | ||
5991 | if (WINDOWP (event->frame_or_window)) | |
5992 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5993 | else if (FRAMEP (event->frame_or_window)) | |
5994 | f = XFRAME (event->frame_or_window); | |
5995 | else | |
5996 | abort (); | |
5997 | ||
5998 | if (FRAME_WINDOW_P (f)) | |
5999 | fuzz = double_click_fuzz; | |
6000 | else | |
6001 | fuzz = double_click_fuzz / 8; | |
6002 | ||
3208cb35 YM |
6003 | if (event->modifiers & up_modifier) |
6004 | { | |
6005 | /* Emit a wheel-up event. */ | |
6006 | event->modifiers &= ~up_modifier; | |
6007 | symbol_num = 0; | |
6008 | } | |
6009 | else if (event->modifiers & down_modifier) | |
6010 | { | |
6011 | /* Emit a wheel-down event. */ | |
6012 | event->modifiers &= ~down_modifier; | |
6013 | symbol_num = 1; | |
6014 | } | |
6015 | else | |
6016 | /* Every wheel event should either have the down_modifier or | |
6017 | the up_modifier set. */ | |
6018 | abort (); | |
6019 | ||
6020 | if (event->kind == HORIZ_WHEEL_EVENT) | |
6021 | symbol_num += 2; | |
6022 | ||
6023 | is_double = (last_mouse_button == - (1 + symbol_num) | |
1ea40aa2 EZ |
6024 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
6025 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
87d386ff JR |
6026 | && button_down_time != 0 |
6027 | && (EQ (Vdouble_click_time, Qt) | |
6028 | || (INTEGERP (Vdouble_click_time) | |
6029 | && ((int)(event->timestamp - button_down_time) | |
6030 | < XINT (Vdouble_click_time))))); | |
6031 | if (is_double) | |
6032 | { | |
6033 | double_click_count++; | |
6034 | event->modifiers |= ((double_click_count > 2) | |
6035 | ? triple_modifier | |
6036 | : double_modifier); | |
6037 | } | |
6038 | else | |
6039 | { | |
6040 | double_click_count = 1; | |
6041 | event->modifiers |= click_modifier; | |
6042 | } | |
6043 | ||
6044 | button_down_time = event->timestamp; | |
6045 | /* Use a negative value to distinguish wheel from mouse button. */ | |
3208cb35 | 6046 | last_mouse_button = - (1 + symbol_num); |
87d386ff JR |
6047 | last_mouse_x = XINT (event->x); |
6048 | last_mouse_y = XINT (event->y); | |
13899bc1 | 6049 | |
db9cd97a | 6050 | /* Get the symbol we should use for the wheel event. */ |
87d386ff JR |
6051 | head = modify_event_symbol (symbol_num, |
6052 | event->modifiers, | |
6053 | Qmouse_click, | |
6054 | Qnil, | |
6055 | lispy_wheel_names, | |
6056 | &wheel_syms, | |
6057 | ASIZE (wheel_syms)); | |
6058 | } | |
6059 | ||
6060 | if (event->modifiers & (double_modifier | triple_modifier)) | |
6061 | return Fcons (head, | |
6062 | Fcons (position, | |
6063 | Fcons (make_number (double_click_count), | |
6064 | Qnil))); | |
6065 | else | |
6066 | return Fcons (head, | |
6067 | Fcons (position, | |
6068 | Qnil)); | |
8006e4bb JR |
6069 | } |
6070 | ||
6071 | ||
05be3964 | 6072 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
6073 | |
6074 | /* We don't have down and up events if using toolkit scroll bars, | |
6075 | so make this always a click event. Store in the `part' of | |
6076 | the Lisp event a symbol which maps to the following actions: | |
6077 | ||
6078 | `above_handle' page up | |
6079 | `below_handle' page down | |
6080 | `up' line up | |
6081 | `down' line down | |
6082 | `top' top of buffer | |
6083 | `bottom' bottom of buffer | |
6084 | `handle' thumb has been dragged. | |
6085 | `end-scroll' end of interaction with scroll bar | |
6086 | ||
6087 | The incoming input_event contains in its `part' member an | |
6088 | index of type `enum scroll_bar_part' which we can use as an | |
6089 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 6090 | |
3b8f9651 | 6091 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
6092 | { |
6093 | Lisp_Object position, head, window, portion_whole, part; | |
6094 | ||
6095 | window = event->frame_or_window; | |
6096 | portion_whole = Fcons (event->x, event->y); | |
6097 | part = *scroll_bar_parts[(int) event->part]; | |
6098 | ||
6099 | position | |
6100 | = Fcons (window, | |
6101 | Fcons (Qvertical_scroll_bar, | |
6102 | Fcons (portion_whole, | |
6103 | Fcons (make_number (event->timestamp), | |
6104 | Fcons (part, Qnil))))); | |
6105 | ||
6106 | /* Always treat scroll bar events as clicks. */ | |
6107 | event->modifiers |= click_modifier; | |
05be3964 | 6108 | event->modifiers &= ~up_modifier; |
7ee32cda | 6109 | |
257f40f2 JD |
6110 | if (event->code >= ASIZE (mouse_syms)) |
6111 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
6112 | ||
7ee32cda GM |
6113 | /* Get the symbol we should use for the mouse click. */ |
6114 | head = modify_event_symbol (event->code, | |
6115 | event->modifiers, | |
14e40288 | 6116 | Qmouse_click, |
8e1e4240 GM |
6117 | Vlispy_mouse_stem, |
6118 | NULL, &mouse_syms, | |
6119 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
6120 | return Fcons (head, Fcons (position, Qnil)); |
6121 | } | |
c60ee5e7 | 6122 | |
7ee32cda GM |
6123 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
6124 | ||
3b8f9651 | 6125 | case DRAG_N_DROP_EVENT: |
a24dc617 | 6126 | { |
a24dc617 | 6127 | FRAME_PTR f; |
6b61353c | 6128 | Lisp_Object head, position; |
a24dc617 | 6129 | Lisp_Object files; |
a24dc617 | 6130 | |
82de1de9 YM |
6131 | f = XFRAME (event->frame_or_window); |
6132 | files = event->arg; | |
a24dc617 RS |
6133 | |
6134 | /* Ignore mouse events that were made on frames that | |
6135 | have been deleted. */ | |
6136 | if (! FRAME_LIVE_P (f)) | |
6137 | return Qnil; | |
afabdbe5 | 6138 | |
6b61353c KH |
6139 | position = make_lispy_position (f, &event->x, &event->y, |
6140 | event->timestamp); | |
6141 | ||
6142 | head = modify_event_symbol (0, event->modifiers, | |
6143 | Qdrag_n_drop, Qnil, | |
6144 | lispy_drag_n_drop_names, | |
6145 | &drag_n_drop_syms, 1); | |
6146 | return Fcons (head, | |
6147 | Fcons (position, | |
6148 | Fcons (files, | |
6149 | Qnil))); | |
a24dc617 | 6150 | } |
514354e9 | 6151 | #endif /* HAVE_MOUSE */ |
284f4730 | 6152 | |
9e2a2647 | 6153 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 6154 | || defined(HAVE_NS) || defined (USE_GTK) |
da8f7368 GM |
6155 | case MENU_BAR_EVENT: |
6156 | if (EQ (event->arg, event->frame_or_window)) | |
6157 | /* This is the prefix key. We translate this to | |
6158 | `(menu_bar)' because the code in keyboard.c for menu | |
6159 | events, which we use, relies on this. */ | |
6160 | return Fcons (Qmenu_bar, Qnil); | |
6161 | return event->arg; | |
2470a66f KH |
6162 | #endif |
6163 | ||
a4e19f6e SM |
6164 | case SELECT_WINDOW_EVENT: |
6165 | /* Make an event (select-window (WINDOW)). */ | |
6166 | return Fcons (Qselect_window, | |
6167 | Fcons (Fcons (event->frame_or_window, Qnil), | |
6168 | Qnil)); | |
6169 | ||
9ea173e8 | 6170 | case TOOL_BAR_EVENT: |
da8f7368 GM |
6171 | if (EQ (event->arg, event->frame_or_window)) |
6172 | /* This is the prefix key. We translate this to | |
27fd22dc | 6173 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
6174 | events, which we use, relies on this. */ |
6175 | return Fcons (Qtool_bar, Qnil); | |
6176 | else if (SYMBOLP (event->arg)) | |
6177 | return apply_modifiers (event->modifiers, event->arg); | |
6178 | return event->arg; | |
6179 | ||
6180 | case USER_SIGNAL_EVENT: | |
5bf68f6e | 6181 | /* A user signal. */ |
b809d9e7 KS |
6182 | { |
6183 | char *name = find_user_signal_name (event->code); | |
6184 | if (!name) | |
6185 | abort (); | |
6186 | return intern (name); | |
6187 | } | |
c60ee5e7 | 6188 | |
3b8f9651 | 6189 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 6190 | return Qsave_session; |
c60ee5e7 | 6191 | |
033b73e2 MA |
6192 | #ifdef HAVE_DBUS |
6193 | case DBUS_EVENT: | |
6194 | { | |
6195 | return Fcons (Qdbus_event, event->arg); | |
6196 | } | |
6197 | #endif /* HAVE_DBUS */ | |
6198 | ||
7e5a23bd | 6199 | #ifdef HAVE_GPM |
ae372f41 NR |
6200 | case GPM_CLICK_EVENT: |
6201 | { | |
6202 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
6203 | Lisp_Object head, position; | |
6204 | Lisp_Object *start_pos_ptr; | |
6205 | Lisp_Object start_pos; | |
6206 | int button = event->code; | |
6207 | ||
6208 | if (button >= ASIZE (button_down_location)) | |
6209 | { | |
6210 | button_down_location = larger_vector (button_down_location, | |
6211 | button + 1, Qnil); | |
6212 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
6213 | } | |
6214 | ||
6215 | start_pos_ptr = &AREF (button_down_location, button); | |
6216 | start_pos = *start_pos_ptr; | |
6217 | ||
6218 | position = make_lispy_position (f, &event->x, &event->y, | |
6219 | event->timestamp); | |
6220 | ||
6221 | if (event->modifiers & down_modifier) | |
6222 | *start_pos_ptr = Fcopy_alist (position); | |
6223 | else if (event->modifiers & (up_modifier | drag_modifier)) | |
6224 | { | |
6225 | if (!CONSP (start_pos)) | |
6226 | return Qnil; | |
6227 | event->modifiers &= ~up_modifier; | |
6228 | } | |
6229 | ||
6230 | head = modify_event_symbol (button, | |
6231 | event->modifiers, | |
6232 | Qmouse_click, Vlispy_mouse_stem, | |
6233 | NULL, | |
6234 | &mouse_syms, | |
6235 | XVECTOR (mouse_syms)->size); | |
6236 | ||
6237 | if (event->modifiers & drag_modifier) | |
6238 | return Fcons (head, | |
6239 | Fcons (start_pos, | |
6240 | Fcons (position, | |
6241 | Qnil))); | |
6242 | else if (event->modifiers & double_modifier) | |
6243 | return Fcons (head, | |
6244 | Fcons (position, | |
6245 | Fcons (make_number (2), | |
6246 | Qnil))); | |
6247 | else if (event->modifiers & triple_modifier) | |
6248 | return Fcons (head, | |
6249 | Fcons (position, | |
6250 | Fcons (make_number (3), | |
6251 | Qnil))); | |
6252 | else | |
6253 | return Fcons (head, | |
6254 | Fcons (position, | |
6255 | Qnil)); | |
6256 | } | |
7e5a23bd | 6257 | #endif /* HAVE_GPM */ |
ae372f41 | 6258 | |
284f4730 JB |
6259 | /* The 'kind' field of the event is something we don't recognize. */ |
6260 | default: | |
48e416d4 | 6261 | abort (); |
284f4730 JB |
6262 | } |
6263 | } | |
6264 | ||
bdb1e01d | 6265 | #if defined(HAVE_MOUSE) || defined(HAVE_GPM) |
6cbff1cb | 6266 | |
284f4730 | 6267 | static Lisp_Object |
7b4aedb9 | 6268 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 6269 | FRAME_PTR frame; |
7b4aedb9 | 6270 | Lisp_Object bar_window; |
3c370943 | 6271 | enum scroll_bar_part part; |
284f4730 | 6272 | Lisp_Object x, y; |
e5d77022 | 6273 | unsigned long time; |
284f4730 | 6274 | { |
3c370943 | 6275 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 6276 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 6277 | { |
9b8eb840 | 6278 | Lisp_Object part_sym; |
4bb994d1 | 6279 | |
9b8eb840 | 6280 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 6281 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 6282 | (Fcons (Fcons (bar_window, |
3c370943 | 6283 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
6284 | Fcons (Fcons (x, y), |
6285 | Fcons (make_number (time), | |
cb5df6ae | 6286 | Fcons (part_sym, |
4bb994d1 JB |
6287 | Qnil))))), |
6288 | Qnil))); | |
6289 | } | |
6290 | ||
6291 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
6292 | else |
6293 | { | |
6b61353c | 6294 | Lisp_Object position; |
9e20143a | 6295 | |
6b61353c | 6296 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 6297 | |
4bb994d1 | 6298 | return Fcons (Qmouse_movement, |
6b61353c | 6299 | Fcons (position, |
4bb994d1 JB |
6300 | Qnil)); |
6301 | } | |
284f4730 JB |
6302 | } |
6303 | ||
bdb1e01d | 6304 | #endif /* HAVE_MOUSE || HAVE GPM */ |
6cbff1cb | 6305 | |
cd21b839 JB |
6306 | /* Construct a switch frame event. */ |
6307 | static Lisp_Object | |
6308 | make_lispy_switch_frame (frame) | |
6309 | Lisp_Object frame; | |
6310 | { | |
6311 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
6312 | } | |
0a7f1fc0 JB |
6313 | \f |
6314 | /* Manipulating modifiers. */ | |
284f4730 | 6315 | |
0a7f1fc0 | 6316 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 6317 | |
0a7f1fc0 JB |
6318 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
6319 | SYMBOL's name of the end of the modifiers; the string from this | |
6320 | position is the unmodified symbol name. | |
284f4730 | 6321 | |
0a7f1fc0 | 6322 | This doesn't use any caches. */ |
6da3dd3a | 6323 | |
0a7f1fc0 JB |
6324 | static int |
6325 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 6326 | Lisp_Object symbol; |
0a7f1fc0 | 6327 | int *modifier_end; |
284f4730 | 6328 | { |
1b049b51 | 6329 | Lisp_Object name; |
284f4730 JB |
6330 | int i; |
6331 | int modifiers; | |
284f4730 | 6332 | |
b7826503 | 6333 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 6334 | |
284f4730 | 6335 | modifiers = 0; |
1b049b51 | 6336 | name = SYMBOL_NAME (symbol); |
284f4730 | 6337 | |
1b049b51 | 6338 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
6339 | { |
6340 | int this_mod_end = 0; | |
6341 | int this_mod = 0; | |
284f4730 | 6342 | |
6da3dd3a RS |
6343 | /* See if the name continues with a modifier word. |
6344 | Check that the word appears, but don't check what follows it. | |
6345 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 6346 | |
1b049b51 | 6347 | switch (SREF (name, i)) |
6da3dd3a RS |
6348 | { |
6349 | #define SINGLE_LETTER_MOD(BIT) \ | |
6350 | (this_mod_end = i + 1, this_mod = BIT) | |
6351 | ||
6da3dd3a RS |
6352 | case 'A': |
6353 | SINGLE_LETTER_MOD (alt_modifier); | |
6354 | break; | |
284f4730 | 6355 | |
6da3dd3a RS |
6356 | case 'C': |
6357 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6358 | break; | |
284f4730 | 6359 | |
6da3dd3a RS |
6360 | case 'H': |
6361 | SINGLE_LETTER_MOD (hyper_modifier); | |
6362 | break; | |
6363 | ||
6da3dd3a RS |
6364 | case 'M': |
6365 | SINGLE_LETTER_MOD (meta_modifier); | |
6366 | break; | |
6367 | ||
6da3dd3a RS |
6368 | case 'S': |
6369 | SINGLE_LETTER_MOD (shift_modifier); | |
6370 | break; | |
6371 | ||
6372 | case 's': | |
6da3dd3a RS |
6373 | SINGLE_LETTER_MOD (super_modifier); |
6374 | break; | |
6375 | ||
0a7f1fc0 | 6376 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
6377 | |
6378 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
6379 | if (i + LEN + 1 <= SBYTES (name) \ | |
6380 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
6381 | { \ | |
6382 | this_mod_end = i + LEN; \ | |
6383 | this_mod = BIT; \ | |
6384 | } | |
6385 | ||
6386 | case 'd': | |
6387 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6388 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6389 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6390 | break; | |
6391 | ||
6392 | case 't': | |
6393 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6394 | break; | |
6395 | #undef MULTI_LETTER_MOD | |
6396 | ||
6da3dd3a RS |
6397 | } |
6398 | ||
6399 | /* If we found no modifier, stop looking for them. */ | |
6400 | if (this_mod_end == 0) | |
6401 | break; | |
6402 | ||
6403 | /* Check there is a dash after the modifier, so that it | |
6404 | really is a modifier. */ | |
1b049b51 KR |
6405 | if (this_mod_end >= SBYTES (name) |
6406 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
6407 | break; |
6408 | ||
6409 | /* This modifier is real; look for another. */ | |
6410 | modifiers |= this_mod; | |
6411 | i = this_mod_end + 1; | |
6412 | } | |
284f4730 | 6413 | |
0a7f1fc0 | 6414 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6415 | if (! (modifiers & (down_modifier | drag_modifier |
6416 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6417 | && i + 7 == SBYTES (name) |
6418 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6419 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6420 | modifiers |= click_modifier; |
6421 | ||
a6d46bc1 JR |
6422 | if (! (modifiers & (double_modifier | triple_modifier)) |
6423 | && i + 6 < SBYTES (name) | |
6424 | && strncmp (SDATA (name) + i, "wheel-", 6) == 0) | |
6425 | modifiers |= click_modifier; | |
6426 | ||
0a7f1fc0 JB |
6427 | if (modifier_end) |
6428 | *modifier_end = i; | |
6429 | ||
6430 | return modifiers; | |
6431 | } | |
6432 | ||
0a7f1fc0 JB |
6433 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6434 | prepended to the string BASE[0..BASE_LEN-1]. | |
6435 | This doesn't use any caches. */ | |
6436 | static Lisp_Object | |
301738ed | 6437 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6438 | int modifiers; |
6439 | char *base; | |
301738ed | 6440 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6441 | { |
6442 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6443 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6444 | reference to it. */ | |
301738ed RS |
6445 | char *new_mods |
6446 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6447 | int mod_len; |
284f4730 | 6448 | |
284f4730 | 6449 | { |
0a7f1fc0 JB |
6450 | char *p = new_mods; |
6451 | ||
6452 | /* Only the event queue may use the `up' modifier; it should always | |
6453 | be turned into a click or drag event before presented to lisp code. */ | |
6454 | if (modifiers & up_modifier) | |
6455 | abort (); | |
6456 | ||
6457 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6458 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6459 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6460 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6461 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6462 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6463 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6464 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6465 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6466 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6467 | /* The click modifier is denoted by the absence of other modifiers. */ |
6468 | ||
6469 | *p = '\0'; | |
6470 | ||
6471 | mod_len = p - new_mods; | |
6472 | } | |
284f4730 | 6473 | |
0a7f1fc0 | 6474 | { |
9b8eb840 | 6475 | Lisp_Object new_name; |
df0f2ba1 | 6476 | |
301738ed RS |
6477 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6478 | mod_len + base_len_byte); | |
d5db4077 KR |
6479 | bcopy (new_mods, SDATA (new_name), mod_len); |
6480 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6481 | |
6482 | return Fintern (new_name, Qnil); | |
6483 | } | |
6484 | } | |
6485 | ||
6486 | ||
0a7f1fc0 JB |
6487 | static char *modifier_names[] = |
6488 | { | |
fbcd35bd | 6489 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6490 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6491 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6492 | }; |
80645119 | 6493 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6494 | |
6495 | static Lisp_Object modifier_symbols; | |
6496 | ||
6497 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6498 | static Lisp_Object | |
6499 | lispy_modifier_list (modifiers) | |
6500 | int modifiers; | |
6501 | { | |
6502 | Lisp_Object modifier_list; | |
6503 | int i; | |
6504 | ||
6505 | modifier_list = Qnil; | |
80645119 | 6506 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6507 | if (modifiers & (1<<i)) |
80645119 JB |
6508 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6509 | modifier_list); | |
0a7f1fc0 JB |
6510 | |
6511 | return modifier_list; | |
6512 | } | |
6513 | ||
6514 | ||
6515 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6516 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6517 | MASK is the set of modifiers present in SYMBOL's name. | |
6518 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6519 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6520 | Qevent_symbol_elements property. */ | |
3d31316f | 6521 | |
21ec2c43 SM |
6522 | #define KEY_TO_CHAR(k) (XINT (k) & ((1 << CHARACTERBITS) - 1)) |
6523 | ||
1161d367 | 6524 | Lisp_Object |
0a7f1fc0 JB |
6525 | parse_modifiers (symbol) |
6526 | Lisp_Object symbol; | |
6527 | { | |
9b8eb840 | 6528 | Lisp_Object elements; |
0a7f1fc0 | 6529 | |
21ec2c43 SM |
6530 | if (INTEGERP (symbol)) |
6531 | return (Fcons (make_number (KEY_TO_CHAR (symbol)), | |
6532 | Fcons (make_number (XINT (symbol) & CHAR_MODIFIER_MASK), | |
6533 | Qnil))); | |
6534 | else if (!SYMBOLP (symbol)) | |
6535 | return Qnil; | |
6536 | ||
9b8eb840 | 6537 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6538 | if (CONSP (elements)) |
6539 | return elements; | |
6540 | else | |
6541 | { | |
6542 | int end; | |
ec0faad2 | 6543 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6544 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6545 | Lisp_Object mask; |
6546 | ||
d5db4077 KR |
6547 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6548 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6549 | Qnil); |
6550 | ||
6b61353c | 6551 | if (modifiers & ~INTMASK) |
734fef94 | 6552 | abort (); |
bb9e9bed | 6553 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6554 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6555 | ||
6556 | /* Cache the parsing results on SYMBOL. */ | |
6557 | Fput (symbol, Qevent_symbol_element_mask, | |
6558 | elements); | |
6559 | Fput (symbol, Qevent_symbol_elements, | |
6560 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6561 | ||
6562 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6563 | it would be nice to put that in unmodified's cache. | |
6564 | But we can't, since we're not sure that parse_modifiers is | |
6565 | canonical. */ | |
6566 | ||
6567 | return elements; | |
6568 | } | |
6569 | } | |
6570 | ||
58da34c7 SM |
6571 | DEFUN ("internal-event-symbol-parse-modifiers", Fevent_symbol_parse_modifiers, |
6572 | Sevent_symbol_parse_modifiers, 1, 1, 0, | |
6573 | doc: /* Parse the event symbol. For internal use. */) | |
9b6112e8 AS |
6574 | (symbol) |
6575 | Lisp_Object symbol; | |
58da34c7 SM |
6576 | { |
6577 | /* Fill the cache if needed. */ | |
6578 | parse_modifiers (symbol); | |
6579 | /* Ignore the result (which is stored on Qevent_symbol_element_mask) | |
6580 | and use the Lispier representation stored on Qevent_symbol_elements | |
6581 | instead. */ | |
6582 | return Fget (symbol, Qevent_symbol_elements); | |
6583 | } | |
6584 | ||
0a7f1fc0 JB |
6585 | /* Apply the modifiers MODIFIERS to the symbol BASE. |
6586 | BASE must be unmodified. | |
6587 | ||
6588 | This is like apply_modifiers_uncached, but uses BASE's | |
6589 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6590 | Qevent_symbol_elements properties, since it has that info anyway. |
6591 | ||
6592 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6593 | the modified symbol. */ | |
0a7f1fc0 JB |
6594 | static Lisp_Object |
6595 | apply_modifiers (modifiers, base) | |
6596 | int modifiers; | |
6597 | Lisp_Object base; | |
6598 | { | |
7b4aedb9 | 6599 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6600 | |
80645119 | 6601 | /* Mask out upper bits. We don't know where this value's been. */ |
6b61353c | 6602 | modifiers &= INTMASK; |
80645119 | 6603 | |
21ec2c43 | 6604 | if (INTEGERP (base)) |
4b7ab1c4 | 6605 | return make_number (XINT (base) | modifiers); |
21ec2c43 | 6606 | |
0a7f1fc0 | 6607 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6608 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6609 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6610 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6611 | |
6612 | if (CONSP (entry)) | |
7539e11f | 6613 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6614 | else |
6615 | { | |
df0f2ba1 | 6616 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6617 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6618 | SDATA (SYMBOL_NAME (base)), |
6619 | SCHARS (SYMBOL_NAME (base)), | |
6620 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6621 | |
6622 | /* Add the new symbol to the base's cache. */ | |
6623 | entry = Fcons (index, new_symbol); | |
6624 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6625 | ||
35fb885d SM |
6626 | /* We have the parsing info now for free, so we could add it to |
6627 | the caches: | |
6628 | XSETFASTINT (index, modifiers); | |
6629 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6630 | Fcons (base, Fcons (index, Qnil))); | |
6631 | Fput (new_symbol, Qevent_symbol_elements, | |
6632 | Fcons (base, lispy_modifier_list (modifiers))); | |
6633 | Sadly, this is only correct if `base' is indeed a base event, | |
6634 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6635 | } |
0a7f1fc0 | 6636 | |
df0f2ba1 | 6637 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6638 | |
6639 | You'd think we could just set this once and for all when we | |
6640 | intern the symbol above, but reorder_modifiers may call us when | |
6641 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6642 | because it has a Qmodifier_cache property it must have its |
6643 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6644 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6645 | { | |
9b8eb840 | 6646 | Lisp_Object kind; |
7b4aedb9 | 6647 | |
9b8eb840 | 6648 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6649 | if (! NILP (kind)) |
6650 | Fput (new_symbol, Qevent_kind, kind); | |
6651 | } | |
6652 | ||
6653 | return new_symbol; | |
0a7f1fc0 JB |
6654 | } |
6655 | ||
6656 | ||
6657 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6658 | return a symbol with the modifiers placed in the canonical order. | |
6659 | Canonical order is alphabetical, except for down and drag, which | |
6660 | always come last. The 'click' modifier is never written out. | |
6661 | ||
6662 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6663 | and M-C-foo end up being equivalent in the keymap. */ | |
6664 | ||
6665 | Lisp_Object | |
6666 | reorder_modifiers (symbol) | |
6667 | Lisp_Object symbol; | |
6668 | { | |
6669 | /* It's hopefully okay to write the code this way, since everything | |
6670 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6671 | Lisp_Object parsed; |
0a7f1fc0 | 6672 | |
9b8eb840 | 6673 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6674 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6675 | XCAR (parsed)); | |
0a7f1fc0 JB |
6676 | } |
6677 | ||
6678 | ||
284f4730 JB |
6679 | /* For handling events, we often want to produce a symbol whose name |
6680 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6681 | to some base, like the name of a function key or mouse button. | |
6682 | modify_event_symbol produces symbols of this sort. | |
6683 | ||
6684 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6685 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6686 | in the table. | |
6687 | ||
8e1e4240 GM |
6688 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6689 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6690 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6691 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6692 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6693 | |
284f4730 JB |
6694 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6695 | persist between calls to modify_event_symbol that it can use to | |
6696 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6697 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6698 | |
6699 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6700 | |
284f4730 JB |
6701 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6702 | whose prefixes should be applied to the symbol name. | |
6703 | ||
6704 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6705 | the returned symbol. |
88cb0656 JB |
6706 | |
6707 | The symbols we create are supposed to have an | |
eb8c3be9 | 6708 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6709 | in the symbol's name. */ |
6710 | ||
284f4730 | 6711 | static Lisp_Object |
8e1e4240 | 6712 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6713 | name_table, symbol_table, table_size) |
284f4730 JB |
6714 | int symbol_num; |
6715 | unsigned modifiers; | |
6716 | Lisp_Object symbol_kind; | |
8e1e4240 | 6717 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6718 | char **name_table; |
6719 | Lisp_Object *symbol_table; | |
2c834fb3 | 6720 | unsigned int table_size; |
284f4730 | 6721 | { |
80e4aa30 RS |
6722 | Lisp_Object value; |
6723 | Lisp_Object symbol_int; | |
6724 | ||
2c834fb3 KH |
6725 | /* Get rid of the "vendor-specific" bit here. */ |
6726 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6727 | |
6728 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6729 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6730 | return Qnil; |
284f4730 | 6731 | |
80e4aa30 RS |
6732 | if (CONSP (*symbol_table)) |
6733 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6734 | ||
0a7f1fc0 | 6735 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6736 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6737 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6738 | we've never used that symbol before. */ | |
80e4aa30 | 6739 | else |
88cb0656 | 6740 | { |
80e4aa30 RS |
6741 | if (! VECTORP (*symbol_table) |
6742 | || XVECTOR (*symbol_table)->size != table_size) | |
6743 | { | |
6744 | Lisp_Object size; | |
0a7f1fc0 | 6745 | |
bb9e9bed | 6746 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6747 | *symbol_table = Fmake_vector (size, Qnil); |
6748 | } | |
284f4730 | 6749 | |
80e4aa30 RS |
6750 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6751 | } | |
284f4730 | 6752 | |
0a7f1fc0 | 6753 | /* Have we already used this symbol before? */ |
80e4aa30 | 6754 | if (NILP (value)) |
284f4730 | 6755 | { |
0a7f1fc0 | 6756 | /* No; let's create it. */ |
8e1e4240 GM |
6757 | if (CONSP (name_alist_or_stem)) |
6758 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6759 | else if (STRINGP (name_alist_or_stem)) | |
6760 | { | |
d5db4077 | 6761 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6762 | char *buf = (char *) alloca (len + 50); |
987a3489 KL |
6763 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6764 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6765 | value = intern (buf); |
6766 | } | |
2ff6714d | 6767 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6768 | value = intern (name_table[symbol_num]); |
b64b4075 | 6769 | |
e98a93eb | 6770 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6771 | if (NILP (value)) |
6772 | { | |
6773 | char *name = x_get_keysym_name (symbol_num); | |
6774 | if (name) | |
6775 | value = intern (name); | |
6776 | } | |
6777 | #endif | |
6778 | ||
b64b4075 | 6779 | if (NILP (value)) |
d1f50460 RS |
6780 | { |
6781 | char buf[20]; | |
6782 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6783 | value = intern (buf); |
d1f50460 | 6784 | } |
0a7f1fc0 | 6785 | |
80e4aa30 | 6786 | if (CONSP (*symbol_table)) |
4205cb08 | 6787 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6788 | else |
6789 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6790 | ||
df0f2ba1 | 6791 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6792 | builds the Qevent_symbol_elements property, which the user |
6793 | cares about. */ | |
80e4aa30 RS |
6794 | apply_modifiers (modifiers & click_modifier, value); |
6795 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6796 | } |
88cb0656 | 6797 | |
0a7f1fc0 | 6798 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6799 | return apply_modifiers (modifiers, value); |
284f4730 | 6800 | } |
6da3dd3a RS |
6801 | \f |
6802 | /* Convert a list that represents an event type, | |
6803 | such as (ctrl meta backspace), into the usual representation of that | |
6804 | event type as a number or a symbol. */ | |
6805 | ||
a1706c30 | 6806 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6807 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6808 | EVENT-DESC should contain one base event type (a character or symbol) | |
6809 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6810 | drag, down, double or triple). The base must be last. | |
6811 | The return value is an event type (a character or symbol) which | |
6812 | has the same base event type and all the specified modifiers. */) | |
6813 | (event_desc) | |
e57d8fd8 | 6814 | Lisp_Object event_desc; |
6da3dd3a RS |
6815 | { |
6816 | Lisp_Object base; | |
6817 | int modifiers = 0; | |
6818 | Lisp_Object rest; | |
6819 | ||
6820 | base = Qnil; | |
e57d8fd8 | 6821 | rest = event_desc; |
6da3dd3a RS |
6822 | while (CONSP (rest)) |
6823 | { | |
6824 | Lisp_Object elt; | |
6825 | int this = 0; | |
6826 | ||
7539e11f KR |
6827 | elt = XCAR (rest); |
6828 | rest = XCDR (rest); | |
6da3dd3a | 6829 | |
3d31316f | 6830 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6831 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6832 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6833 | |
6834 | if (this != 0) | |
6835 | modifiers |= this; | |
6836 | else if (!NILP (base)) | |
6837 | error ("Two bases given in one event"); | |
6838 | else | |
6839 | base = elt; | |
6840 | ||
6da3dd3a RS |
6841 | } |
6842 | ||
3d31316f | 6843 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6844 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6845 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6846 | |
6da3dd3a RS |
6847 | if (INTEGERP (base)) |
6848 | { | |
3d31316f RS |
6849 | /* Turn (shift a) into A. */ |
6850 | if ((modifiers & shift_modifier) != 0 | |
6851 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6852 | { | |
6853 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6854 | modifiers &= ~shift_modifier; | |
6855 | } | |
6856 | ||
6857 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6858 | if (modifiers & ctrl_modifier) |
3d31316f | 6859 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6860 | | make_ctrl_char (XINT (base))); |
6861 | else | |
6862 | return make_number (modifiers | XINT (base)); | |
6863 | } | |
6864 | else if (SYMBOLP (base)) | |
6865 | return apply_modifiers (modifiers, base); | |
6866 | else | |
8c907a56 GM |
6867 | { |
6868 | error ("Invalid base event"); | |
6869 | return Qnil; | |
6870 | } | |
6da3dd3a RS |
6871 | } |
6872 | ||
3d31316f RS |
6873 | /* Try to recognize SYMBOL as a modifier name. |
6874 | Return the modifier flag bit, or 0 if not recognized. */ | |
6875 | ||
0bcfd7d7 SM |
6876 | int |
6877 | parse_solitary_modifier (Lisp_Object symbol) | |
3d31316f | 6878 | { |
1b049b51 | 6879 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6880 | |
1b049b51 | 6881 | switch (SREF (name, 0)) |
3d31316f RS |
6882 | { |
6883 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6884 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6885 | return BIT; |
6886 | ||
6887 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6888 | if (LEN == SBYTES (name) \ |
6889 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6890 | return BIT; |
6891 | ||
6892 | case 'A': | |
6893 | SINGLE_LETTER_MOD (alt_modifier); | |
6894 | break; | |
6895 | ||
6896 | case 'a': | |
6897 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6898 | break; | |
6899 | ||
6900 | case 'C': | |
6901 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6902 | break; | |
6903 | ||
6904 | case 'c': | |
6905 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6906 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6907 | break; | |
6908 | ||
6909 | case 'H': | |
6910 | SINGLE_LETTER_MOD (hyper_modifier); | |
6911 | break; | |
6912 | ||
6913 | case 'h': | |
6914 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6915 | break; | |
6916 | ||
6917 | case 'M': | |
6918 | SINGLE_LETTER_MOD (meta_modifier); | |
6919 | break; | |
6920 | ||
6921 | case 'm': | |
6922 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6923 | break; | |
6924 | ||
6925 | case 'S': | |
6926 | SINGLE_LETTER_MOD (shift_modifier); | |
6927 | break; | |
6928 | ||
6929 | case 's': | |
6930 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6931 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6932 | SINGLE_LETTER_MOD (super_modifier); | |
6933 | break; | |
6934 | ||
6935 | case 'd': | |
6936 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6937 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6938 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6939 | break; | |
6940 | ||
6941 | case 't': | |
6942 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6943 | break; | |
6944 | ||
6945 | #undef SINGLE_LETTER_MOD | |
6946 | #undef MULTI_LETTER_MOD | |
6947 | } | |
6948 | ||
6949 | return 0; | |
6950 | } | |
6951 | ||
6da3dd3a RS |
6952 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6953 | Such a list is not valid as an event, | |
6954 | but it can be a Lucid-style event type list. */ | |
6955 | ||
6956 | int | |
6957 | lucid_event_type_list_p (object) | |
6958 | Lisp_Object object; | |
6959 | { | |
6960 | Lisp_Object tail; | |
6961 | ||
6962 | if (! CONSP (object)) | |
6963 | return 0; | |
902ae620 GM |
6964 | |
6965 | if (EQ (XCAR (object), Qhelp_echo) | |
6966 | || EQ (XCAR (object), Qvertical_line) | |
6967 | || EQ (XCAR (object), Qmode_line) | |
6968 | || EQ (XCAR (object), Qheader_line)) | |
6969 | return 0; | |
6da3dd3a | 6970 | |
7539e11f | 6971 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6972 | { |
6973 | Lisp_Object elt; | |
7539e11f | 6974 | elt = XCAR (tail); |
6da3dd3a RS |
6975 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6976 | return 0; | |
6977 | } | |
6978 | ||
6979 | return NILP (tail); | |
6980 | } | |
284f4730 | 6981 | \f |
284f4730 JB |
6982 | /* Store into *addr a value nonzero if terminal input chars are available. |
6983 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6984 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6985 | (In fact, this may actually read some input.) |
6986 | ||
a2d5fca0 JD |
6987 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6988 | timer events that are ripe. | |
6989 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6990 | events (FOCUS_IN_EVENT). | |
6991 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6992 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6993 | |
6994 | static void | |
a2d5fca0 | 6995 | get_input_pending (addr, flags) |
284f4730 | 6996 | int *addr; |
a2d5fca0 | 6997 | int flags; |
284f4730 JB |
6998 | { |
6999 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 7000 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
7001 | |
7002 | /* If input is being read as it arrives, and we have none, there is none. */ | |
7003 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
7004 | return; | |
7005 | ||
7006 | /* Try to read some input and see how much we get. */ | |
7007 | gobble_input (0); | |
a2d5fca0 | 7008 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
7009 | } |
7010 | ||
81931ba1 | 7011 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 7012 | |
07a59269 | 7013 | void |
284f4730 JB |
7014 | gobble_input (expected) |
7015 | int expected; | |
7016 | { | |
033b73e2 | 7017 | #ifdef HAVE_DBUS |
485db0ba | 7018 | /* Read D-Bus messages. */ |
033b73e2 MA |
7019 | xd_read_queued_messages (); |
7020 | #endif /* HAVE_DBUS */ | |
7021 | ||
284f4730 JB |
7022 | #ifdef SIGIO |
7023 | if (interrupt_input) | |
7024 | { | |
32676c08 | 7025 | SIGMASKTYPE mask; |
4f8aaa74 | 7026 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 7027 | read_avail_input (expected); |
e065a56e | 7028 | sigsetmask (mask); |
284f4730 JB |
7029 | } |
7030 | else | |
81931ba1 | 7031 | #ifdef POLL_FOR_INPUT |
428a555e KL |
7032 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
7033 | but read_socket_hook is not global anymore. Let's pretend that | |
7034 | it's always set. */ | |
7035 | if (!interrupt_input && poll_suppress_count == 0) | |
81931ba1 RS |
7036 | { |
7037 | SIGMASKTYPE mask; | |
4f8aaa74 | 7038 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
7039 | read_avail_input (expected); |
7040 | sigsetmask (mask); | |
7041 | } | |
7042 | else | |
284f4730 | 7043 | #endif |
284f4730 | 7044 | #endif |
12063bc5 | 7045 | read_avail_input (expected); |
284f4730 | 7046 | } |
a8015ab5 | 7047 | |
3b8f9651 | 7048 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
7049 | so that read_key_sequence will notice the new current buffer. */ |
7050 | ||
07a59269 | 7051 | void |
a8015ab5 KH |
7052 | record_asynch_buffer_change () |
7053 | { | |
7054 | struct input_event event; | |
a30f0615 | 7055 | Lisp_Object tem; |
1269a761 | 7056 | EVENT_INIT (event); |
a30f0615 | 7057 | |
3b8f9651 | 7058 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 7059 | event.frame_or_window = Qnil; |
da8f7368 | 7060 | event.arg = Qnil; |
241ceaf7 | 7061 | |
f65e6f7d | 7062 | #ifdef subprocesses |
a30f0615 RS |
7063 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
7064 | The purpose of the event is to make read_key_sequence look up the | |
7065 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
7066 | and the event could cause trouble by messing up (input-pending-p). */ | |
7067 | tem = Fwaiting_for_user_input_p (); | |
7068 | if (NILP (tem)) | |
7069 | return; | |
f65e6f7d RS |
7070 | #else |
7071 | /* We never need these events if we have no asynchronous subprocesses. */ | |
7072 | return; | |
7073 | #endif | |
a30f0615 | 7074 | |
241ceaf7 RS |
7075 | /* Make sure no interrupt happens while storing the event. */ |
7076 | #ifdef SIGIO | |
7077 | if (interrupt_input) | |
7078 | { | |
7079 | SIGMASKTYPE mask; | |
4f8aaa74 | 7080 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
7081 | kbd_buffer_store_event (&event); |
7082 | sigsetmask (mask); | |
7083 | } | |
7084 | else | |
7085 | #endif | |
7086 | { | |
7087 | stop_polling (); | |
7088 | kbd_buffer_store_event (&event); | |
7089 | start_polling (); | |
7090 | } | |
a8015ab5 | 7091 | } |
284f4730 | 7092 | \f |
284f4730 JB |
7093 | /* Read any terminal input already buffered up by the system |
7094 | into the kbd_buffer, but do not wait. | |
7095 | ||
7096 | EXPECTED should be nonzero if the caller knows there is some input. | |
7097 | ||
284f4730 JB |
7098 | Returns the number of keyboard chars read, or -1 meaning |
7099 | this is a bad time to try to read input. */ | |
7100 | ||
7101 | static int | |
7102 | read_avail_input (expected) | |
7103 | int expected; | |
7104 | { | |
6b61353c | 7105 | int nread = 0; |
80d4c824 | 7106 | int err = 0; |
6ed8eeff | 7107 | struct terminal *t; |
1269a761 | 7108 | |
23479b40 YM |
7109 | /* Store pending user signal events, if any. */ |
7110 | if (store_user_signal_events ()) | |
7111 | expected = 0; | |
7112 | ||
6ed8eeff KL |
7113 | /* Loop through the available terminals, and call their input hooks. */ |
7114 | t = terminal_list; | |
7115 | while (t) | |
6b61353c | 7116 | { |
6ed8eeff | 7117 | struct terminal *next = t->next_terminal; |
6b61353c | 7118 | |
6ed8eeff | 7119 | if (t->read_socket_hook) |
d448e982 | 7120 | { |
3b7fbceb | 7121 | int nr; |
057a9ab4 | 7122 | struct input_event hold_quit; |
d448e982 | 7123 | |
057a9ab4 KL |
7124 | EVENT_INIT (hold_quit); |
7125 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 7126 | |
057a9ab4 | 7127 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6ed8eeff | 7128 | while (nr = (*t->read_socket_hook) (t, expected, &hold_quit), nr > 0) |
057a9ab4 KL |
7129 | { |
7130 | nread += nr; | |
7131 | expected = 0; | |
7132 | } | |
033b73e2 | 7133 | |
057a9ab4 KL |
7134 | if (nr == -1) /* Not OK to read input now. */ |
7135 | { | |
7136 | err = 1; | |
7137 | } | |
7138 | else if (nr == -2) /* Non-transient error. */ | |
7139 | { | |
6ed8eeff | 7140 | /* The terminal device terminated; it should be closed. */ |
033b73e2 | 7141 | |
6ed8eeff KL |
7142 | /* Kill Emacs if this was our last terminal. */ |
7143 | if (!terminal_list->next_terminal) | |
057a9ab4 KL |
7144 | /* Formerly simply reported no input, but that |
7145 | sometimes led to a failure of Emacs to terminate. | |
7146 | SIGHUP seems appropriate if we can't reach the | |
7147 | terminal. */ | |
7148 | /* ??? Is it really right to send the signal just to | |
7149 | this process rather than to the whole process | |
7150 | group? Perhaps on systems with FIONREAD Emacs is | |
7151 | alone in its group. */ | |
7152 | kill (getpid (), SIGHUP); | |
033b73e2 | 7153 | |
e2749141 | 7154 | /* XXX Is calling delete_terminal safe here? It calls delete_frame. */ |
adf6a429 SM |
7155 | { |
7156 | Lisp_Object tmp; | |
7157 | XSETTERMINAL (tmp, t); | |
7158 | Fdelete_terminal (tmp, Qnoelisp); | |
7159 | } | |
057a9ab4 | 7160 | } |
351d2e14 | 7161 | |
057a9ab4 KL |
7162 | if (hold_quit.kind != NO_EVENT) |
7163 | kbd_buffer_store_event (&hold_quit); | |
d448e982 | 7164 | } |
6b61353c | 7165 | |
6ed8eeff | 7166 | t = next; |
6b61353c | 7167 | } |
284f4730 | 7168 | |
1cbfd764 KL |
7169 | if (err && !nread) |
7170 | nread = -1; | |
7171 | ||
e044e4fc JD |
7172 | frame_make_pointer_visible (); |
7173 | ||
8f1ce423 KL |
7174 | return nread; |
7175 | } | |
7176 | ||
fd503d99 KH |
7177 | static void |
7178 | decode_keyboard_code (struct tty_display_info *tty, | |
7179 | struct coding_system *coding, | |
7180 | unsigned char *buf, int nbytes) | |
7181 | { | |
7182 | unsigned char *src = buf; | |
7183 | const unsigned char *p; | |
7184 | int i; | |
7185 | ||
7186 | if (nbytes == 0) | |
7187 | return; | |
7188 | if (tty->meta_key != 2) | |
7189 | for (i = 0; i < nbytes; i++) | |
7190 | buf[i] &= ~0x80; | |
7191 | if (coding->carryover_bytes > 0) | |
7192 | { | |
7193 | src = alloca (coding->carryover_bytes + nbytes); | |
7194 | memcpy (src, coding->carryover, coding->carryover_bytes); | |
7195 | memcpy (src + coding->carryover_bytes, buf, nbytes); | |
7196 | nbytes += coding->carryover_bytes; | |
7197 | } | |
7198 | coding->destination = alloca (nbytes * 4); | |
7199 | coding->dst_bytes = nbytes * 4; | |
7200 | decode_coding_c_string (coding, src, nbytes, Qnil); | |
7201 | if (coding->produced_char == 0) | |
7202 | return; | |
7203 | for (i = 0, p = coding->destination; i < coding->produced_char; i++) | |
7204 | { | |
7205 | struct input_event buf; | |
7206 | ||
7207 | EVENT_INIT (buf); | |
7208 | buf.code = STRING_CHAR_ADVANCE (p); | |
7209 | buf.kind = (ASCII_CHAR_P (buf.code) | |
7210 | ? ASCII_KEYSTROKE_EVENT : MULTIBYTE_CHAR_KEYSTROKE_EVENT); | |
7211 | /* See the comment in tty_read_avail_input. */ | |
7212 | buf.frame_or_window = tty->top_frame; | |
7213 | buf.arg = Qnil; | |
7214 | kbd_buffer_store_event (&buf); | |
7215 | } | |
7216 | } | |
7217 | ||
8f1ce423 KL |
7218 | /* This is the tty way of reading available input. |
7219 | ||
6ed8eeff | 7220 | Note that each terminal device has its own `struct terminal' object, |
8f1ce423 | 7221 | and so this function is called once for each individual termcap |
6ed8eeff | 7222 | terminal. The first parameter indicates which terminal to read from. */ |
d448e982 | 7223 | |
8f1ce423 | 7224 | int |
6ed8eeff | 7225 | tty_read_avail_input (struct terminal *terminal, |
057a9ab4 KL |
7226 | int expected, |
7227 | struct input_event *hold_quit) | |
8f1ce423 | 7228 | { |
057a9ab4 KL |
7229 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
7230 | the kbd_buffer can really hold. That may prevent loss | |
7231 | of characters on some systems when input is stuffed at us. */ | |
7232 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
8f1ce423 | 7233 | int n_to_read, i; |
6ed8eeff | 7234 | struct tty_display_info *tty = terminal->display_info.tty; |
8f1ce423 | 7235 | int nread = 0; |
3b7fbceb | 7236 | |
bcc3646e | 7237 | if (!terminal->name) /* Don't read from a dead terminal. */ |
1bc973c2 | 7238 | return 0; |
ab797f65 | 7239 | |
cb22456d EZ |
7240 | if (terminal->type != output_termcap |
7241 | && terminal->type != output_msdos_raw) | |
8f1ce423 | 7242 | abort (); |
3b7fbceb | 7243 | |
ac3d2625 | 7244 | /* XXX I think the following code should be moved to separate hook |
8f1ce423 | 7245 | functions in system-dependent files. */ |
bc536d84 | 7246 | #ifdef WINDOWSNT |
8f1ce423 | 7247 | return 0; |
bc536d84 | 7248 | #else /* not WINDOWSNT */ |
cb22456d EZ |
7249 | if (! tty->term_initted) /* In case we get called during bootstrap. */ |
7250 | return 0; | |
7251 | ||
7252 | if (! tty->input) | |
7253 | return 0; /* The terminal is suspended. */ | |
7254 | ||
80e4aa30 | 7255 | #ifdef MSDOS |
8f1ce423 KL |
7256 | n_to_read = dos_keysns (); |
7257 | if (n_to_read == 0) | |
7258 | return 0; | |
3b7fbceb | 7259 | |
8f1ce423 KL |
7260 | cbuf[0] = dos_keyread (); |
7261 | nread = 1; | |
3b7fbceb | 7262 | |
c3a2738c | 7263 | #else /* not MSDOS */ |
7e5a23bd | 7264 | #ifdef HAVE_GPM |
71f44e7a | 7265 | if (gpm_tty == tty) |
7be1c21a MB |
7266 | { |
7267 | Gpm_Event event; | |
7268 | struct input_event hold_quit; | |
d347e494 | 7269 | int gpm, fd = gpm_fd; |
ae372f41 | 7270 | |
7be1c21a MB |
7271 | EVENT_INIT (hold_quit); |
7272 | hold_quit.kind = NO_EVENT; | |
ae372f41 | 7273 | |
d347e494 SM |
7274 | /* gpm==1 if event received. |
7275 | gpm==0 if the GPM daemon has closed the connection, in which case | |
7276 | Gpm_GetEvent closes gpm_fd and clears it to -1, which is why | |
7277 | we save it in `fd' so close_gpm can remove it from the | |
7278 | select masks. | |
7279 | gpm==-1 if a protocol error or EWOULDBLOCK; the latter is normal. */ | |
7be1c21a MB |
7280 | while (gpm = Gpm_GetEvent (&event), gpm == 1) { |
7281 | nread += handle_one_term_event (tty, &event, &hold_quit); | |
7282 | } | |
d347e494 | 7283 | if (gpm == 0) |
ed5ff21d | 7284 | /* Presumably the GPM daemon has closed the connection. */ |
d347e494 | 7285 | close_gpm (fd); |
7be1c21a MB |
7286 | if (hold_quit.kind != NO_EVENT) |
7287 | kbd_buffer_store_event (&hold_quit); | |
7288 | if (nread) | |
7289 | return nread; | |
7290 | } | |
7e5a23bd | 7291 | #endif /* HAVE_GPM */ |
ae372f41 | 7292 | |
7be1c21a | 7293 | /* Determine how many characters we should *try* to read. */ |
284f4730 | 7294 | #ifdef FIONREAD |
8f1ce423 | 7295 | /* Find out how much input is available. */ |
0b0d3e0b | 7296 | if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0) |
8f1ce423 KL |
7297 | { |
7298 | if (! noninteractive) | |
6ed8eeff | 7299 | return -2; /* Close this terminal. */ |
8f1ce423 | 7300 | else |
d448e982 | 7301 | n_to_read = 0; |
8f1ce423 KL |
7302 | } |
7303 | if (n_to_read == 0) | |
7304 | return 0; | |
7305 | if (n_to_read > sizeof cbuf) | |
7306 | n_to_read = sizeof cbuf; | |
284f4730 | 7307 | #else /* no FIONREAD */ |
e39a993c | 7308 | #if defined (USG) || defined(CYGWIN) |
8f1ce423 KL |
7309 | /* Read some input if available, but don't wait. */ |
7310 | n_to_read = sizeof cbuf; | |
0b0d3e0b | 7311 | fcntl (fileno (tty->input), F_SETFL, O_NDELAY); |
284f4730 | 7312 | #else |
8f1ce423 | 7313 | you lose; |
284f4730 JB |
7314 | #endif |
7315 | #endif | |
7316 | ||
8f1ce423 KL |
7317 | /* Now read; for one reason or another, this will not block. |
7318 | NREAD is set to the number of chars read. */ | |
7319 | do | |
7320 | { | |
0b0d3e0b | 7321 | nread = emacs_read (fileno (tty->input), cbuf, n_to_read); |
8f1ce423 KL |
7322 | /* POSIX infers that processes which are not in the session leader's |
7323 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
7324 | this part standard and returns -1 from read (0) with errno==EIO | |
7325 | when the control tty is taken away. | |
ac3d2625 | 7326 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ |
8f1ce423 | 7327 | if (nread == -1 && errno == EIO) |
6ed8eeff | 7328 | return -2; /* Close this terminal. */ |
4624371d | 7329 | #if defined (AIX) && defined (_BSD) |
8f1ce423 KL |
7330 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
7331 | This looks incorrect, but it isn't, because _BSD causes | |
7332 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
7333 | and that causes a value other than 0 when there is no input. */ | |
7334 | if (nread == 0) | |
6ed8eeff | 7335 | return -2; /* Close this terminal. */ |
284f4730 | 7336 | #endif |
8f1ce423 KL |
7337 | } |
7338 | while ( | |
7339 | /* We used to retry the read if it was interrupted. | |
7340 | But this does the wrong thing when O_NDELAY causes | |
7341 | an EAGAIN error. Does anybody know of a situation | |
7342 | where a retry is actually needed? */ | |
791587ee | 7343 | #if 0 |
8f1ce423 | 7344 | nread < 0 && (errno == EAGAIN |
6aec06f5 | 7345 | #ifdef EFAULT |
8f1ce423 | 7346 | || errno == EFAULT |
80e4aa30 | 7347 | #endif |
284f4730 | 7348 | #ifdef EBADSLT |
8f1ce423 | 7349 | || errno == EBADSLT |
284f4730 | 7350 | #endif |
8f1ce423 | 7351 | ) |
791587ee | 7352 | #else |
8f1ce423 | 7353 | 0 |
791587ee | 7354 | #endif |
8f1ce423 | 7355 | ); |
284f4730 JB |
7356 | |
7357 | #ifndef FIONREAD | |
e39a993c | 7358 | #if defined (USG) || defined (CYGWIN) |
0b0d3e0b | 7359 | fcntl (fileno (tty->input), F_SETFL, 0); |
e39a993c | 7360 | #endif /* USG or CYGWIN */ |
284f4730 | 7361 | #endif /* no FIONREAD */ |
3b7fbceb | 7362 | |
8f1ce423 KL |
7363 | if (nread <= 0) |
7364 | return nread; | |
3b7fbceb | 7365 | |
9628b887 KL |
7366 | #endif /* not MSDOS */ |
7367 | #endif /* not WINDOWSNT */ | |
3b7fbceb | 7368 | |
fd503d99 KH |
7369 | if (TERMINAL_KEYBOARD_CODING (terminal)->common_flags |
7370 | & CODING_REQUIRE_DECODING_MASK) | |
7371 | { | |
7372 | struct coding_system *coding = TERMINAL_KEYBOARD_CODING (terminal); | |
7373 | int from; | |
485db0ba | 7374 | |
fd503d99 KH |
7375 | /* Decode the key sequence except for those with meta |
7376 | modifiers. */ | |
7377 | for (i = from = 0; ; i++) | |
7378 | if (i == nread || (tty->meta_key == 1 && (cbuf[i] & 0x80))) | |
7379 | { | |
7380 | struct input_event buf; | |
7381 | ||
7382 | decode_keyboard_code (tty, coding, cbuf + from, i - from); | |
7383 | if (i == nread) | |
7384 | break; | |
7385 | ||
7386 | EVENT_INIT (buf); | |
7387 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7388 | buf.modifiers = meta_modifier; | |
7389 | buf.code = cbuf[i] & ~0x80; | |
7390 | /* See the comment below. */ | |
7391 | buf.frame_or_window = tty->top_frame; | |
7392 | buf.arg = Qnil; | |
7393 | kbd_buffer_store_event (&buf); | |
7394 | from = i + 1; | |
7395 | } | |
7396 | return nread; | |
7397 | } | |
7398 | ||
284f4730 JB |
7399 | for (i = 0; i < nread; i++) |
7400 | { | |
057a9ab4 KL |
7401 | struct input_event buf; |
7402 | EVENT_INIT (buf); | |
7403 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7404 | buf.modifiers = 0; | |
8f1ce423 | 7405 | if (tty->meta_key == 1 && (cbuf[i] & 0x80)) |
057a9ab4 | 7406 | buf.modifiers = meta_modifier; |
8f1ce423 KL |
7407 | if (tty->meta_key != 2) |
7408 | cbuf[i] &= ~0x80; | |
033b73e2 | 7409 | |
057a9ab4 | 7410 | buf.code = cbuf[i]; |
ac3d2625 KL |
7411 | /* Set the frame corresponding to the active tty. Note that the |
7412 | value of selected_frame is not reliable here, redisplay tends | |
7413 | to temporarily change it. */ | |
057a9ab4 KL |
7414 | buf.frame_or_window = tty->top_frame; |
7415 | buf.arg = Qnil; | |
033b73e2 | 7416 | |
057a9ab4 KL |
7417 | kbd_buffer_store_event (&buf); |
7418 | /* Don't look at input that follows a C-g too closely. | |
7419 | This reduces lossage due to autorepeat on C-g. */ | |
7420 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
7421 | && buf.code == quit_char) | |
7422 | break; | |
284f4730 JB |
7423 | } |
7424 | ||
7425 | return nread; | |
7426 | } | |
284f4730 | 7427 | \f |
6b61353c KH |
7428 | void |
7429 | handle_async_input () | |
7430 | { | |
6b61353c | 7431 | interrupt_input_pending = 0; |
07a1e794 | 7432 | #ifdef SYNC_INPUT |
ceb18827 | 7433 | pending_signals = pending_atimers; |
07a1e794 | 7434 | #endif |
c96169a0 AR |
7435 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
7436 | doing anything dangerous. */ | |
7437 | #ifdef HAVE_NS | |
7438 | ++handling_signal; | |
7439 | #endif | |
6b61353c KH |
7440 | while (1) |
7441 | { | |
7442 | int nread; | |
7443 | nread = read_avail_input (1); | |
7444 | /* -1 means it's not ok to read the input now. | |
7445 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
7446 | 0 means there was no keyboard input available. */ | |
7447 | if (nread <= 0) | |
7448 | break; | |
6b61353c | 7449 | } |
c96169a0 AR |
7450 | #ifdef HAVE_NS |
7451 | --handling_signal; | |
7452 | #endif | |
6b61353c KH |
7453 | } |
7454 | ||
ceb18827 CY |
7455 | void |
7456 | process_pending_signals () | |
7457 | { | |
7458 | if (interrupt_input_pending) | |
7459 | handle_async_input (); | |
7460 | do_pending_atimers (); | |
7461 | } | |
7462 | ||
284f4730 JB |
7463 | #ifdef SIGIO /* for entire page */ |
7464 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
7465 | ||
4216b545 | 7466 | static SIGTYPE |
284f4730 JB |
7467 | input_available_signal (signo) |
7468 | int signo; | |
7469 | { | |
7470 | /* Must preserve main program's value of errno. */ | |
7471 | int old_errno = errno; | |
5970a8cb | 7472 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
7473 | /* USG systems forget handlers when they are used; |
7474 | must reestablish each time */ | |
7475 | signal (signo, input_available_signal); | |
7476 | #endif /* USG */ | |
7477 | ||
6b61353c KH |
7478 | #ifdef SYNC_INPUT |
7479 | interrupt_input_pending = 1; | |
ceb18827 | 7480 | pending_signals = 1; |
6b61353c | 7481 | #else |
333f1b6f | 7482 | SIGNAL_THREAD_CHECK (signo); |
bd55c35c | 7483 | #endif |
a25f766a | 7484 | |
bd55c35c JD |
7485 | if (input_available_clear_time) |
7486 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d7031edc | 7487 | |
bd55c35c | 7488 | #ifndef SYNC_INPUT |
6b61353c | 7489 | handle_async_input (); |
284f4730 | 7490 | #endif |
284f4730 | 7491 | |
284f4730 JB |
7492 | errno = old_errno; |
7493 | } | |
7494 | #endif /* SIGIO */ | |
ad163903 JB |
7495 | |
7496 | /* Send ourselves a SIGIO. | |
7497 | ||
7498 | This function exists so that the UNBLOCK_INPUT macro in | |
7499 | blockinput.h can have some way to take care of input we put off | |
7500 | dealing with, without assuming that every file which uses | |
7501 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
7502 | void | |
7503 | reinvoke_input_signal () | |
7504 | { | |
df0f2ba1 | 7505 | #ifdef SIGIO |
6b61353c | 7506 | handle_async_input (); |
ad163903 JB |
7507 | #endif |
7508 | } | |
7509 | ||
7510 | ||
284f4730 | 7511 | \f |
23479b40 YM |
7512 | /* User signal events. */ |
7513 | ||
7514 | struct user_signal_info | |
7515 | { | |
7516 | /* Signal number. */ | |
7517 | int sig; | |
7518 | ||
7519 | /* Name of the signal. */ | |
7520 | char *name; | |
7521 | ||
7522 | /* Number of pending signals. */ | |
7523 | int npending; | |
7524 | ||
7525 | struct user_signal_info *next; | |
7526 | }; | |
7527 | ||
7528 | /* List of user signals. */ | |
7529 | static struct user_signal_info *user_signals = NULL; | |
7530 | ||
7531 | void | |
7532 | add_user_signal (sig, name) | |
7533 | int sig; | |
7534 | const char *name; | |
7535 | { | |
7536 | struct user_signal_info *p; | |
7537 | ||
7538 | for (p = user_signals; p; p = p->next) | |
7539 | if (p->sig == sig) | |
7540 | /* Already added. */ | |
7541 | return; | |
7542 | ||
7543 | p = xmalloc (sizeof (struct user_signal_info)); | |
7544 | p->sig = sig; | |
7545 | p->name = xstrdup (name); | |
7546 | p->npending = 0; | |
7547 | p->next = user_signals; | |
7548 | user_signals = p; | |
7549 | ||
7550 | signal (sig, handle_user_signal); | |
7551 | } | |
7552 | ||
7553 | static SIGTYPE | |
7554 | handle_user_signal (sig) | |
7555 | int sig; | |
7556 | { | |
7557 | int old_errno = errno; | |
7558 | struct user_signal_info *p; | |
7559 | ||
7560 | #if defined (USG) && !defined (POSIX_SIGNALS) | |
7561 | /* USG systems forget handlers when they are used; | |
7562 | must reestablish each time */ | |
7563 | signal (sig, handle_user_signal); | |
7564 | #endif | |
7565 | ||
7566 | SIGNAL_THREAD_CHECK (sig); | |
7567 | ||
7568 | for (p = user_signals; p; p = p->next) | |
7569 | if (p->sig == sig) | |
7570 | { | |
7571 | p->npending++; | |
7572 | #ifdef SIGIO | |
7573 | if (interrupt_input) | |
7574 | kill (getpid (), SIGIO); | |
7575 | else | |
7576 | #endif | |
7577 | { | |
7578 | /* Tell wait_reading_process_output that it needs to wake | |
7579 | up and look around. */ | |
7580 | if (input_available_clear_time) | |
7581 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
7582 | } | |
7583 | break; | |
7584 | } | |
7585 | ||
7586 | errno = old_errno; | |
7587 | } | |
7588 | ||
7589 | static char * | |
7590 | find_user_signal_name (sig) | |
7591 | int sig; | |
7592 | { | |
7593 | struct user_signal_info *p; | |
7594 | ||
7595 | for (p = user_signals; p; p = p->next) | |
7596 | if (p->sig == sig) | |
7597 | return p->name; | |
7598 | ||
7599 | return NULL; | |
7600 | } | |
7601 | ||
7602 | static int | |
7603 | store_user_signal_events () | |
7604 | { | |
7605 | struct user_signal_info *p; | |
7606 | struct input_event buf; | |
7607 | int nstored = 0; | |
7608 | ||
7609 | for (p = user_signals; p; p = p->next) | |
7610 | if (p->npending > 0) | |
7611 | { | |
7612 | SIGMASKTYPE mask; | |
7613 | ||
7614 | if (nstored == 0) | |
7615 | { | |
7616 | bzero (&buf, sizeof buf); | |
7617 | buf.kind = USER_SIGNAL_EVENT; | |
7618 | buf.frame_or_window = selected_frame; | |
7619 | } | |
7620 | nstored += p->npending; | |
7621 | ||
7622 | mask = sigblock (sigmask (p->sig)); | |
7623 | do | |
7624 | { | |
23479b40 YM |
7625 | buf.code = p->sig; |
7626 | kbd_buffer_store_event (&buf); | |
7627 | p->npending--; | |
7628 | } | |
7629 | while (p->npending > 0); | |
7630 | sigsetmask (mask); | |
7631 | } | |
7632 | ||
7633 | return nstored; | |
7634 | } | |
7635 | ||
7636 | \f | |
318ab85c SM |
7637 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
7638 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
7639 | |
7640 | /* These variables hold the vector under construction within | |
7641 | menu_bar_items and its subroutines, and the current index | |
7642 | for storing into that vector. */ | |
7643 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 7644 | static int menu_bar_items_index; |
5ec75a55 | 7645 | |
b7c49376 RS |
7646 | /* Return a vector of menu items for a menu bar, appropriate |
7647 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 7648 | KEY STRING MAPLIST. |
b7c49376 RS |
7649 | |
7650 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
7651 | |
7652 | Lisp_Object | |
b7c49376 RS |
7653 | menu_bar_items (old) |
7654 | Lisp_Object old; | |
5ec75a55 RS |
7655 | { |
7656 | /* The number of keymaps we're scanning right now, and the number of | |
7657 | keymaps we have allocated space for. */ | |
7658 | int nmaps; | |
7659 | ||
7660 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
7661 | in the current keymaps, or nil where it is not a prefix. */ | |
7662 | Lisp_Object *maps; | |
7663 | ||
aebfea68 | 7664 | Lisp_Object def, tail; |
5ec75a55 RS |
7665 | |
7666 | Lisp_Object result; | |
7667 | ||
7668 | int mapno; | |
47d319aa | 7669 | Lisp_Object oquit; |
5ec75a55 | 7670 | |
b7c49376 RS |
7671 | int i; |
7672 | ||
db60d856 JB |
7673 | /* In order to build the menus, we need to call the keymap |
7674 | accessors. They all call QUIT. But this function is called | |
7675 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
7676 | quitting while building the menus. |
7677 | We do this instead of specbind because (1) errors will clear it anyway | |
7678 | and (2) this avoids risk of specpdl overflow. */ | |
7679 | oquit = Vinhibit_quit; | |
df0f2ba1 | 7680 | Vinhibit_quit = Qt; |
db60d856 | 7681 | |
b7c49376 RS |
7682 | if (!NILP (old)) |
7683 | menu_bar_items_vector = old; | |
7684 | else | |
7685 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
7686 | menu_bar_items_index = 0; | |
7687 | ||
5ec75a55 RS |
7688 | /* Build our list of keymaps. |
7689 | If we recognize a function key and replace its escape sequence in | |
7690 | keybuf with its symbol, or if the sequence starts with a mouse | |
7691 | click and we need to switch buffers, we jump back here to rebuild | |
7692 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7693 | { |
5ec75a55 RS |
7694 | Lisp_Object *tmaps; |
7695 | ||
217258d5 | 7696 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 7697 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 7698 | { |
217258d5 KH |
7699 | /* Yes, use them (if non-nil) as well as the global map. */ |
7700 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7701 | nmaps = 0; | |
7702 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7703 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7704 | if (!NILP (Voverriding_local_map)) | |
7705 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
7706 | } |
7707 | else | |
7708 | { | |
fd646341 KS |
7709 | /* No, so use major and minor mode keymaps and keymap property. |
7710 | Note that menu-bar bindings in the local-map and keymap | |
7711 | properties may not work reliable, as they are only | |
7712 | recognized when the menu-bar (or mode-line) is updated, | |
7713 | which does not normally happen after every command. */ | |
7714 | Lisp_Object tem; | |
7715 | int nminor; | |
7716 | nminor = current_minor_maps (NULL, &tmaps); | |
7717 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7718 | nmaps = 0; | |
7719 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7720 | maps[nmaps++] = tem; | |
7721 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7722 | nmaps += nminor; | |
7723 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 7724 | } |
217258d5 | 7725 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
7726 | } |
7727 | ||
7728 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
7729 | ||
7730 | result = Qnil; | |
7731 | ||
e58aa385 | 7732 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
7733 | if (!NILP (maps[mapno])) |
7734 | { | |
341a09cf SM |
7735 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
7736 | 0, 1); | |
02067692 | 7737 | if (CONSP (def)) |
4216b545 SM |
7738 | { |
7739 | menu_bar_one_keymap_changed_items = Qnil; | |
7740 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
7741 | } | |
25126faa | 7742 | } |
5ec75a55 | 7743 | |
b7c49376 RS |
7744 | /* Move to the end those items that should be at the end. */ |
7745 | ||
7539e11f | 7746 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7747 | { |
b7c49376 RS |
7748 | int i; |
7749 | int end = menu_bar_items_index; | |
7750 | ||
35b3402f | 7751 | for (i = 0; i < end; i += 4) |
7539e11f | 7752 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7753 | { |
35b3402f | 7754 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7755 | /* Move the item at index I to the end, |
7756 | shifting all the others forward. */ | |
7757 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7758 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7759 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7760 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7761 | if (end > i + 4) | |
7762 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7763 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7764 | (end - i - 4) * sizeof (Lisp_Object)); |
7765 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7766 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7767 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7768 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7769 | break; |
b7c49376 RS |
7770 | } |
7771 | } | |
9f9c0e27 | 7772 | |
0c9071cd | 7773 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7774 | i = menu_bar_items_index; |
35b3402f | 7775 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7776 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7777 | /* Add this item. */ |
7778 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7779 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7780 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7781 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7782 | menu_bar_items_index = i; |
a73c5e29 | 7783 | |
47d319aa | 7784 | Vinhibit_quit = oquit; |
b7c49376 | 7785 | return menu_bar_items_vector; |
5ec75a55 RS |
7786 | } |
7787 | \f | |
f5e09c8b RS |
7788 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7789 | If there's already an item for KEY, add this DEF to it. */ | |
7790 | ||
e8886a1d RS |
7791 | Lisp_Object item_properties; |
7792 | ||
b7c49376 | 7793 | static void |
4216b545 SM |
7794 | menu_bar_item (key, item, dummy1, dummy2) |
7795 | Lisp_Object key, item, dummy1; | |
7796 | void *dummy2; | |
5ec75a55 | 7797 | { |
e8886a1d | 7798 | struct gcpro gcpro1; |
b7c49376 | 7799 | int i; |
759860a6 | 7800 | Lisp_Object tem; |
5ec75a55 | 7801 | |
e8886a1d | 7802 | if (EQ (item, Qundefined)) |
e58aa385 | 7803 | { |
f5e09c8b | 7804 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7805 | discard any previously made menu bar item. */ |
b7c49376 | 7806 | |
35b3402f | 7807 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7808 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7809 | { | |
35b3402f RS |
7810 | if (menu_bar_items_index > i + 4) |
7811 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7812 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7813 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7814 | menu_bar_items_index -= 4; | |
b7c49376 | 7815 | } |
e58aa385 RS |
7816 | } |
7817 | ||
759860a6 RS |
7818 | /* If this keymap has already contributed to this KEY, |
7819 | don't contribute to it a second time. */ | |
7820 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7821 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7822 | return; |
7823 | ||
7824 | menu_bar_one_keymap_changed_items | |
7825 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7826 | ||
9cd2ced7 SM |
7827 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7828 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7829 | it still correctly hides any further menu item. */ | |
7830 | GCPRO1 (key); | |
ef7417fd | 7831 | i = parse_menu_item (item, 1); |
9cd2ced7 SM |
7832 | UNGCPRO; |
7833 | if (!i) | |
7834 | return; | |
7835 | ||
e8886a1d RS |
7836 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7837 | ||
f5e09c8b | 7838 | /* Find any existing item for this KEY. */ |
35b3402f | 7839 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7840 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7841 | break; | |
7842 | ||
f5e09c8b | 7843 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7844 | if (i == menu_bar_items_index) |
7845 | { | |
7846 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7847 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7848 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7849 | /* Add this item. */ |
7850 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7851 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7852 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7853 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7854 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7855 | menu_bar_items_index = i; |
7856 | } | |
e8886a1d | 7857 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7858 | else |
7859 | { | |
7860 | Lisp_Object old; | |
7861 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7862 | /* If the new and the old items are not both keymaps, |
7863 | the lookup will only find `item'. */ | |
7864 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7865 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7866 | } |
5ec75a55 RS |
7867 | } |
7868 | \f | |
e8886a1d RS |
7869 | /* This is used as the handler when calling menu_item_eval_property. */ |
7870 | static Lisp_Object | |
7871 | menu_item_eval_property_1 (arg) | |
7872 | Lisp_Object arg; | |
7873 | { | |
7874 | /* If we got a quit from within the menu computation, | |
7875 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7876 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7877 | Fsignal (Qquit, Qnil); |
7878 | ||
7879 | return Qnil; | |
7880 | } | |
7881 | ||
c60ee5e7 | 7882 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7883 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7884 | Lisp_Object |
e8886a1d RS |
7885 | menu_item_eval_property (sexpr) |
7886 | Lisp_Object sexpr; | |
7887 | { | |
aed13378 | 7888 | int count = SPECPDL_INDEX (); |
e8886a1d | 7889 | Lisp_Object val; |
44e553a3 | 7890 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7891 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7892 | menu_item_eval_property_1); | |
44e553a3 | 7893 | return unbind_to (count, val); |
e8886a1d RS |
7894 | } |
7895 | ||
7896 | /* This function parses a menu item and leaves the result in the | |
7897 | vector item_properties. | |
7898 | ITEM is a key binding, a possible menu item. | |
fd3613d7 | 7899 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7900 | top level. |
fd3613d7 | 7901 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7902 | parse_menu_item returns true if the item is a menu item and false |
7903 | otherwise. */ | |
7904 | ||
7905 | int | |
ef7417fd | 7906 | parse_menu_item (item, inmenubar) |
e8886a1d | 7907 | Lisp_Object item; |
ef7417fd | 7908 | int inmenubar; |
e8886a1d | 7909 | { |
adc1d5c8 | 7910 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7911 | Lisp_Object filter; |
7912 | Lisp_Object keyhint; | |
e8886a1d | 7913 | int i; |
74c1de23 | 7914 | |
07ba902e RS |
7915 | filter = Qnil; |
7916 | keyhint = Qnil; | |
7917 | ||
e8886a1d RS |
7918 | if (!CONSP (item)) |
7919 | return 0; | |
7920 | ||
e8886a1d RS |
7921 | /* Create item_properties vector if necessary. */ |
7922 | if (NILP (item_properties)) | |
7923 | item_properties | |
7924 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7925 | ||
7926 | /* Initialize optional entries. */ | |
7927 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
b1ebcadb SM |
7928 | ASET (item_properties, i, Qnil); |
7929 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); | |
c60ee5e7 | 7930 | |
e8886a1d | 7931 | /* Save the item here to protect it from GC. */ |
b1ebcadb | 7932 | ASET (item_properties, ITEM_PROPERTY_ITEM, item); |
e8886a1d | 7933 | |
7539e11f | 7934 | item_string = XCAR (item); |
e8886a1d RS |
7935 | |
7936 | start = item; | |
7539e11f | 7937 | item = XCDR (item); |
e8886a1d RS |
7938 | if (STRINGP (item_string)) |
7939 | { | |
7940 | /* Old format menu item. */ | |
b1ebcadb | 7941 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d RS |
7942 | |
7943 | /* Maybe help string. */ | |
7539e11f | 7944 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7945 | { |
b1ebcadb | 7946 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7947 | start = item; |
7539e11f | 7948 | item = XCDR (item); |
e8886a1d | 7949 | } |
c60ee5e7 | 7950 | |
50d4ba39 | 7951 | /* Maybe an obsolete key binding cache. */ |
7539e11f KR |
7952 | if (CONSP (item) && CONSP (XCAR (item)) |
7953 | && (NILP (XCAR (XCAR (item))) | |
7954 | || VECTORP (XCAR (XCAR (item))))) | |
50d4ba39 | 7955 | item = XCDR (item); |
c60ee5e7 | 7956 | |
e8886a1d | 7957 | /* This is the real definition--the function to run. */ |
b1ebcadb | 7958 | ASET (item_properties, ITEM_PROPERTY_DEF, item); |
e8886a1d RS |
7959 | |
7960 | /* Get enable property, if any. */ | |
7961 | if (SYMBOLP (item)) | |
7962 | { | |
7963 | tem = Fget (item, Qmenu_enable); | |
9d56e0da | 7964 | if (!NILP (Venable_disabled_menus_and_buttons)) |
b1ebcadb | 7965 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7966 | else if (!NILP (tem)) |
b1ebcadb | 7967 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7968 | } |
7969 | } | |
7970 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7971 | { | |
7972 | /* New format menu item. */ | |
b1ebcadb | 7973 | ASET (item_properties, ITEM_PROPERTY_NAME, XCAR (item)); |
7539e11f | 7974 | start = XCDR (item); |
e8886a1d RS |
7975 | if (CONSP (start)) |
7976 | { | |
7977 | /* We have a real binding. */ | |
b1ebcadb | 7978 | ASET (item_properties, ITEM_PROPERTY_DEF, XCAR (start)); |
e8886a1d | 7979 | |
7539e11f | 7980 | item = XCDR (start); |
50d4ba39 | 7981 | /* Is there an obsolete cache list with key equivalences. */ |
7539e11f | 7982 | if (CONSP (item) && CONSP (XCAR (item))) |
50d4ba39 | 7983 | item = XCDR (item); |
e8886a1d RS |
7984 | |
7985 | /* Parse properties. */ | |
7539e11f | 7986 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7987 | { |
7539e11f KR |
7988 | tem = XCAR (item); |
7989 | item = XCDR (item); | |
e8886a1d RS |
7990 | |
7991 | if (EQ (tem, QCenable)) | |
9d56e0da EZ |
7992 | { |
7993 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
b1ebcadb | 7994 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7995 | else |
b1ebcadb | 7996 | ASET (item_properties, ITEM_PROPERTY_ENABLE, XCAR (item)); |
9d56e0da | 7997 | } |
ef7417fd | 7998 | else if (EQ (tem, QCvisible)) |
e8886a1d RS |
7999 | { |
8000 | /* If got a visible property and that evaluates to nil | |
8001 | then ignore this item. */ | |
7539e11f | 8002 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 8003 | if (NILP (tem)) |
adc1d5c8 | 8004 | return 0; |
e8886a1d RS |
8005 | } |
8006 | else if (EQ (tem, QChelp)) | |
b1ebcadb | 8007 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 8008 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
8009 | filter = item; |
8010 | else if (EQ (tem, QCkey_sequence)) | |
8011 | { | |
7539e11f | 8012 | tem = XCAR (item); |
50d4ba39 | 8013 | if (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem)) |
74c1de23 RS |
8014 | /* Be GC protected. Set keyhint to item instead of tem. */ |
8015 | keyhint = item; | |
8016 | } | |
8017 | else if (EQ (tem, QCkeys)) | |
8018 | { | |
7539e11f | 8019 | tem = XCAR (item); |
50d4ba39 | 8020 | if (CONSP (tem) || STRINGP (tem)) |
b1ebcadb | 8021 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
74c1de23 | 8022 | } |
7539e11f | 8023 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 8024 | { |
74c1de23 | 8025 | Lisp_Object type; |
7539e11f KR |
8026 | tem = XCAR (item); |
8027 | type = XCAR (tem); | |
e8886a1d RS |
8028 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
8029 | { | |
b1ebcadb SM |
8030 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
8031 | XCDR (tem)); | |
8032 | ASET (item_properties, ITEM_PROPERTY_TYPE, type); | |
e8886a1d RS |
8033 | } |
8034 | } | |
7539e11f | 8035 | item = XCDR (item); |
e8886a1d RS |
8036 | } |
8037 | } | |
8038 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 8039 | return 0; |
e8886a1d RS |
8040 | } |
8041 | else | |
adc1d5c8 | 8042 | return 0; /* not a menu item */ |
e8886a1d RS |
8043 | |
8044 | /* If item string is not a string, evaluate it to get string. | |
8045 | If we don't get a string, skip this item. */ | |
3626fb1a | 8046 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
ef7417fd | 8047 | if (!(STRINGP (item_string))) |
e8886a1d RS |
8048 | { |
8049 | item_string = menu_item_eval_property (item_string); | |
8050 | if (!STRINGP (item_string)) | |
adc1d5c8 | 8051 | return 0; |
b1ebcadb | 8052 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d | 8053 | } |
c60ee5e7 | 8054 | |
e8886a1d | 8055 | /* If got a filter apply it on definition. */ |
3626fb1a | 8056 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
8057 | if (!NILP (filter)) |
8058 | { | |
7539e11f | 8059 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
8060 | list2 (Qquote, def))); |
8061 | ||
b1ebcadb | 8062 | ASET (item_properties, ITEM_PROPERTY_DEF, def); |
e8886a1d RS |
8063 | } |
8064 | ||
e8886a1d | 8065 | /* Enable or disable selection of item. */ |
3626fb1a | 8066 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
8067 | if (!EQ (tem, Qt)) |
8068 | { | |
ef7417fd | 8069 | tem = menu_item_eval_property (tem); |
e8886a1d | 8070 | if (inmenubar && NILP (tem)) |
adc1d5c8 | 8071 | return 0; /* Ignore disabled items in menu bar. */ |
b1ebcadb | 8072 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
8073 | } |
8074 | ||
7189cad8 SM |
8075 | /* If we got no definition, this item is just unselectable text which |
8076 | is OK in a submenu but not in the menubar. */ | |
8077 | if (NILP (def)) | |
8078 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 8079 | |
e8886a1d | 8080 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 8081 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 8082 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 8083 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 8084 | if (CONSP (tem)) |
e8886a1d | 8085 | { |
b1ebcadb SM |
8086 | ASET (item_properties, ITEM_PROPERTY_MAP, tem); |
8087 | ASET (item_properties, ITEM_PROPERTY_DEF, tem); | |
e8886a1d RS |
8088 | return 1; |
8089 | } | |
c60ee5e7 | 8090 | |
9ac425d1 RS |
8091 | /* At the top level in the menu bar, do likewise for commands also. |
8092 | The menu bar does not display equivalent key bindings anyway. | |
8093 | ITEM_PROPERTY_DEF is already set up properly. */ | |
8094 | if (inmenubar > 0) | |
8095 | return 1; | |
e8886a1d | 8096 | |
424d6179 SM |
8097 | { /* This is a command. See if there is an equivalent key binding. */ |
8098 | Lisp_Object keyeq = AREF (item_properties, ITEM_PROPERTY_KEYEQ); | |
74c1de23 | 8099 | |
424d6179 SM |
8100 | /* The previous code preferred :key-sequence to :keys, so we |
8101 | preserve this behavior. */ | |
8102 | if (STRINGP (keyeq) && !CONSP (keyhint)) | |
8103 | keyeq = Fsubstitute_command_keys (keyeq); | |
8104 | else | |
8105 | { | |
8106 | Lisp_Object prefix = keyeq; | |
8107 | Lisp_Object keys = Qnil; | |
8108 | ||
8109 | if (CONSP (prefix)) | |
8110 | { | |
8111 | def = XCAR (prefix); | |
8112 | prefix = XCDR (prefix); | |
8113 | } | |
8114 | else | |
8115 | def = AREF (item_properties, ITEM_PROPERTY_DEF); | |
8116 | ||
8117 | if (CONSP (keyhint) && !NILP (XCAR (keyhint))) | |
8118 | { | |
8119 | keys = XCAR (keyhint); | |
8120 | tem = Fkey_binding (keys, Qnil, Qnil, Qnil); | |
8121 | ||
8122 | /* We have a suggested key. Is it bound to the command? */ | |
8123 | if (NILP (tem) | |
8124 | || (!EQ (tem, def) | |
8125 | /* If the command is an alias for another | |
8126 | (such as lmenu.el set it up), check if the | |
8127 | original command matches the cached command. */ | |
8128 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
8129 | keys = Qnil; | |
8130 | } | |
b25399ac | 8131 | |
424d6179 SM |
8132 | if (NILP (keys)) |
8133 | keys = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qnil); | |
b25399ac | 8134 | |
424d6179 SM |
8135 | if (!NILP (keys)) |
8136 | { | |
8137 | tem = Fkey_description (keys, Qnil); | |
8138 | if (CONSP (prefix)) | |
8139 | { | |
8140 | if (STRINGP (XCAR (prefix))) | |
8141 | tem = concat2 (XCAR (prefix), tem); | |
8142 | if (STRINGP (XCDR (prefix))) | |
8143 | tem = concat2 (tem, XCDR (prefix)); | |
8144 | } | |
8145 | keyeq = concat2 (build_string (" "), tem); | |
8146 | /* keyeq = concat3(build_string(" ("),tem,build_string(")")); */ | |
8147 | } | |
8148 | else | |
8149 | keyeq = Qnil; | |
8150 | } | |
e8886a1d | 8151 | |
424d6179 SM |
8152 | /* If we have an equivalent key binding, use that. */ |
8153 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, keyeq); | |
b25399ac | 8154 | } |
adc1d5c8 RS |
8155 | |
8156 | /* Include this when menu help is implemented. | |
8157 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
8158 | if (!(NILP (tem) || STRINGP (tem))) | |
8159 | { | |
8160 | tem = menu_item_eval_property (tem); | |
8161 | if (!STRINGP (tem)) | |
8162 | tem = Qnil; | |
8163 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
8164 | } | |
e8886a1d RS |
8165 | */ |
8166 | ||
c60ee5e7 | 8167 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 8168 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 8169 | if (!NILP (tem)) |
b1ebcadb SM |
8170 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
8171 | menu_item_eval_property (tem)); | |
e8886a1d | 8172 | |
e8886a1d RS |
8173 | return 1; |
8174 | } | |
7ee32cda GM |
8175 | |
8176 | ||
8177 | \f | |
8178 | /*********************************************************************** | |
8179 | Tool-bars | |
8180 | ***********************************************************************/ | |
8181 | ||
9ea173e8 | 8182 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 8183 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 8184 | in the vector. */ |
7ee32cda | 8185 | |
9ea173e8 | 8186 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 8187 | |
9ea173e8 GM |
8188 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
8189 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 8190 | |
9ea173e8 | 8191 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 8192 | |
9ea173e8 | 8193 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 8194 | |
9ea173e8 | 8195 | static int ntool_bar_items; |
7ee32cda | 8196 | |
cf0590c4 | 8197 | /* The symbols `tool-bar', `:image' and `:rtl'. */ |
7ee32cda | 8198 | |
9ea173e8 | 8199 | extern Lisp_Object Qtool_bar; |
7ee32cda | 8200 | Lisp_Object QCimage; |
cf0590c4 | 8201 | Lisp_Object Qrtl; |
7ee32cda GM |
8202 | |
8203 | /* Function prototypes. */ | |
8204 | ||
9ea173e8 | 8205 | static void init_tool_bar_items P_ ((Lisp_Object)); |
9c8c4d5b | 8206 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
9ea173e8 GM |
8207 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); |
8208 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
8209 | |
8210 | ||
9ea173e8 | 8211 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 8212 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 8213 | tool bar items found. */ |
7ee32cda GM |
8214 | |
8215 | Lisp_Object | |
9ea173e8 | 8216 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
8217 | Lisp_Object reuse; |
8218 | int *nitems; | |
8219 | { | |
8220 | Lisp_Object *maps; | |
8221 | int nmaps, i; | |
8222 | Lisp_Object oquit; | |
8223 | Lisp_Object *tmaps; | |
7ee32cda GM |
8224 | |
8225 | *nitems = 0; | |
8226 | ||
8227 | /* In order to build the menus, we need to call the keymap | |
8228 | accessors. They all call QUIT. But this function is called | |
8229 | during redisplay, during which a quit is fatal. So inhibit | |
8230 | quitting while building the menus. We do this instead of | |
8231 | specbind because (1) errors will clear it anyway and (2) this | |
8232 | avoids risk of specpdl overflow. */ | |
8233 | oquit = Vinhibit_quit; | |
8234 | Vinhibit_quit = Qt; | |
c60ee5e7 | 8235 | |
9ea173e8 GM |
8236 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
8237 | init_tool_bar_items (reuse); | |
7ee32cda GM |
8238 | |
8239 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
8240 | to process. */ | |
c60ee5e7 | 8241 | |
7ee32cda GM |
8242 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
8243 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8244 | { | |
8245 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8246 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
8247 | nmaps = 0; | |
8248 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8249 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8250 | if (!NILP (Voverriding_local_map)) | |
8251 | maps[nmaps++] = Voverriding_local_map; | |
8252 | } | |
8253 | else | |
8254 | { | |
fd646341 KS |
8255 | /* No, so use major and minor mode keymaps and keymap property. |
8256 | Note that tool-bar bindings in the local-map and keymap | |
8257 | properties may not work reliable, as they are only | |
8258 | recognized when the tool-bar (or mode-line) is updated, | |
8259 | which does not normally happen after every command. */ | |
8260 | Lisp_Object tem; | |
8261 | int nminor; | |
8262 | nminor = current_minor_maps (NULL, &tmaps); | |
8263 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
8264 | nmaps = 0; | |
8265 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
8266 | maps[nmaps++] = tem; | |
8267 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
8268 | nmaps += nminor; | |
8269 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
8270 | } |
8271 | ||
8272 | /* Add global keymap at the end. */ | |
8273 | maps[nmaps++] = current_global_map; | |
8274 | ||
8275 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 8276 | key `tool-bar'. */ |
7ee32cda GM |
8277 | for (i = nmaps - 1; i >= 0; --i) |
8278 | if (!NILP (maps[i])) | |
8279 | { | |
8280 | Lisp_Object keymap; | |
db785038 | 8281 | |
341a09cf | 8282 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 8283 | if (CONSP (keymap)) |
293bd733 | 8284 | map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1); |
7ee32cda GM |
8285 | } |
8286 | ||
8287 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
8288 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
8289 | return tool_bar_items_vector; | |
7ee32cda GM |
8290 | } |
8291 | ||
8292 | ||
8293 | /* Process the definition of KEY which is DEF. */ | |
8294 | ||
8295 | static void | |
9c8c4d5b | 8296 | process_tool_bar_item (key, def, data, args) |
293bd733 SM |
8297 | Lisp_Object key, def, data; |
8298 | void *args; | |
7ee32cda GM |
8299 | { |
8300 | int i; | |
8301 | extern Lisp_Object Qundefined; | |
8302 | struct gcpro gcpro1, gcpro2; | |
8303 | ||
9ea173e8 | 8304 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
8305 | eval. */ |
8306 | GCPRO2 (key, def); | |
8307 | ||
8308 | if (EQ (def, Qundefined)) | |
8309 | { | |
8310 | /* If a map has an explicit `undefined' as definition, | |
8311 | discard any previously made item. */ | |
9ea173e8 | 8312 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 8313 | { |
9ea173e8 | 8314 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 8315 | |
9ea173e8 | 8316 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 8317 | { |
9ea173e8 GM |
8318 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
8319 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
8320 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 8321 | * sizeof (Lisp_Object))); |
9ea173e8 | 8322 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
8323 | break; |
8324 | } | |
8325 | } | |
8326 | } | |
9ea173e8 GM |
8327 | else if (parse_tool_bar_item (key, def)) |
8328 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 8329 | more than one definition for the same key. */ |
9ea173e8 | 8330 | append_tool_bar_item (); |
7ee32cda GM |
8331 | |
8332 | UNGCPRO; | |
8333 | } | |
8334 | ||
8335 | ||
9ea173e8 GM |
8336 | /* Parse a tool bar item specification ITEM for key KEY and return the |
8337 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
8338 | invalid. |
8339 | ||
8340 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 8341 | |
7ee32cda GM |
8342 | CAPTION is the caption of the item, If it's not a string, it is |
8343 | evaluated to get a string. | |
c60ee5e7 | 8344 | |
9ea173e8 | 8345 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
8346 | as binding are currently ignored. |
8347 | ||
8348 | The following properties are recognized: | |
8349 | ||
8350 | - `:enable FORM'. | |
c60ee5e7 | 8351 | |
9ea173e8 GM |
8352 | FORM is evaluated and specifies whether the tool bar item is |
8353 | enabled or disabled. | |
c60ee5e7 | 8354 | |
7ee32cda | 8355 | - `:visible FORM' |
c60ee5e7 | 8356 | |
9ea173e8 | 8357 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 8358 | |
7ee32cda GM |
8359 | - `:filter FUNCTION' |
8360 | ||
8361 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
8362 | result is stored as the new binding. | |
c60ee5e7 | 8363 | |
7ee32cda GM |
8364 | - `:button (TYPE SELECTED)' |
8365 | ||
8366 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
8367 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 8368 | |
7ee32cda GM |
8369 | - `:image IMAGES' |
8370 | ||
8371 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 8372 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 8373 | |
7ee32cda | 8374 | - `:help HELP-STRING'. |
c60ee5e7 | 8375 | |
9ea173e8 | 8376 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
8377 | |
8378 | static int | |
9ea173e8 | 8379 | parse_tool_bar_item (key, item) |
7ee32cda GM |
8380 | Lisp_Object key, item; |
8381 | { | |
9ea173e8 GM |
8382 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
8383 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
8384 | |
8385 | Lisp_Object filter = Qnil; | |
8386 | Lisp_Object caption; | |
7ee32cda | 8387 | int i; |
7ee32cda | 8388 | |
8c907a56 GM |
8389 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
8390 | Rule out items that aren't lists, don't start with | |
8391 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
8392 | list. */ |
8393 | if (!CONSP (item) | |
8394 | || !EQ (XCAR (item), Qmenu_item) | |
8395 | || (item = XCDR (item), | |
8396 | !CONSP (item))) | |
8397 | return 0; | |
8398 | ||
9ea173e8 | 8399 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 8400 | defaults. */ |
9ea173e8 | 8401 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 8402 | { |
9ea173e8 | 8403 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
8404 | PROP (i) = Qnil; |
8405 | } | |
8406 | else | |
9ea173e8 GM |
8407 | tool_bar_item_properties |
8408 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 8409 | |
7ee32cda | 8410 | /* Set defaults. */ |
9ea173e8 GM |
8411 | PROP (TOOL_BAR_ITEM_KEY) = key; |
8412 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 8413 | |
7ee32cda GM |
8414 | /* Get the caption of the item. If the caption is not a string, |
8415 | evaluate it to get a string. If we don't get a string, skip this | |
8416 | item. */ | |
8417 | caption = XCAR (item); | |
8418 | if (!STRINGP (caption)) | |
8419 | { | |
8420 | caption = menu_item_eval_property (caption); | |
8421 | if (!STRINGP (caption)) | |
8422 | return 0; | |
8423 | } | |
9ea173e8 | 8424 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
8425 | |
8426 | /* Give up if rest following the caption is not a list. */ | |
8427 | item = XCDR (item); | |
8428 | if (!CONSP (item)) | |
8429 | return 0; | |
8430 | ||
8431 | /* Store the binding. */ | |
9ea173e8 | 8432 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
8433 | item = XCDR (item); |
8434 | ||
8c907a56 GM |
8435 | /* Ignore cached key binding, if any. */ |
8436 | if (CONSP (item) && CONSP (XCAR (item))) | |
8437 | item = XCDR (item); | |
8438 | ||
7ee32cda GM |
8439 | /* Process the rest of the properties. */ |
8440 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
8441 | { | |
8442 | Lisp_Object key, value; | |
8443 | ||
8444 | key = XCAR (item); | |
8445 | value = XCAR (XCDR (item)); | |
8446 | ||
8447 | if (EQ (key, QCenable)) | |
9d56e0da EZ |
8448 | { |
8449 | /* `:enable FORM'. */ | |
8450 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
8451 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
8452 | else | |
8453 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; | |
8454 | } | |
7ee32cda GM |
8455 | else if (EQ (key, QCvisible)) |
8456 | { | |
8457 | /* `:visible FORM'. If got a visible property and that | |
8458 | evaluates to nil then ignore this item. */ | |
8459 | if (NILP (menu_item_eval_property (value))) | |
8460 | return 0; | |
8461 | } | |
8462 | else if (EQ (key, QChelp)) | |
8463 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 8464 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
8465 | else if (EQ (key, QCfilter)) |
8466 | /* ':filter FORM'. */ | |
8467 | filter = value; | |
8468 | else if (EQ (key, QCbutton) && CONSP (value)) | |
8469 | { | |
8470 | /* `:button (TYPE . SELECTED)'. */ | |
8471 | Lisp_Object type, selected; | |
8472 | ||
8473 | type = XCAR (value); | |
8474 | selected = XCDR (value); | |
8475 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
8476 | { | |
9ea173e8 GM |
8477 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
8478 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
8479 | } |
8480 | } | |
8481 | else if (EQ (key, QCimage) | |
8482 | && (CONSP (value) | |
8483 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
8484 | /* Value is either a single image specification or a vector | |
27fd22dc | 8485 | of 4 such specifications for the different button states. */ |
9ea173e8 | 8486 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
cf0590c4 JD |
8487 | else if (EQ (key, Qrtl)) |
8488 | /* ':rtl STRING' */ | |
8489 | PROP (TOOL_BAR_ITEM_RTL_IMAGE) = value; | |
7ee32cda GM |
8490 | } |
8491 | ||
8492 | /* If got a filter apply it on binding. */ | |
8493 | if (!NILP (filter)) | |
9ea173e8 | 8494 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
8495 | = menu_item_eval_property (list2 (filter, |
8496 | list2 (Qquote, | |
9ea173e8 | 8497 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
8498 | |
8499 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 8500 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
8501 | return 0; |
8502 | ||
8503 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
8504 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
8505 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
8506 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 8507 | |
c60ee5e7 | 8508 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
8509 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
8510 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
8511 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
8512 | |
8513 | return 1; | |
c60ee5e7 | 8514 | |
7ee32cda GM |
8515 | #undef PROP |
8516 | } | |
8517 | ||
8518 | ||
9ea173e8 GM |
8519 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
8520 | that can be reused. */ | |
7ee32cda GM |
8521 | |
8522 | static void | |
9ea173e8 | 8523 | init_tool_bar_items (reuse) |
7ee32cda GM |
8524 | Lisp_Object reuse; |
8525 | { | |
8526 | if (VECTORP (reuse)) | |
9ea173e8 | 8527 | tool_bar_items_vector = reuse; |
7ee32cda | 8528 | else |
9ea173e8 GM |
8529 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
8530 | ntool_bar_items = 0; | |
7ee32cda GM |
8531 | } |
8532 | ||
8533 | ||
9ea173e8 GM |
8534 | /* Append parsed tool bar item properties from |
8535 | tool_bar_item_properties */ | |
7ee32cda GM |
8536 | |
8537 | static void | |
9ea173e8 | 8538 | append_tool_bar_item () |
7ee32cda GM |
8539 | { |
8540 | Lisp_Object *to, *from; | |
c60ee5e7 | 8541 | |
9ea173e8 GM |
8542 | /* Enlarge tool_bar_items_vector if necessary. */ |
8543 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
8544 | >= XVECTOR (tool_bar_items_vector)->size) | |
219ccf1b RS |
8545 | tool_bar_items_vector |
8546 | = larger_vector (tool_bar_items_vector, | |
8547 | 2 * XVECTOR (tool_bar_items_vector)->size, Qnil); | |
7ee32cda | 8548 | |
9ea173e8 GM |
8549 | /* Append entries from tool_bar_item_properties to the end of |
8550 | tool_bar_items_vector. */ | |
8551 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
8552 | from = XVECTOR (tool_bar_item_properties)->contents; | |
8553 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
8554 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
8555 | } |
8556 | ||
8557 | ||
8558 | ||
8559 | ||
e8886a1d | 8560 | \f |
dcc408a0 RS |
8561 | /* Read a character using menus based on maps in the array MAPS. |
8562 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
8563 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
8564 | |
8565 | PREV_EVENT is the previous input event, or nil if we are reading | |
8566 | the first event of a key sequence. | |
8567 | ||
83d68044 | 8568 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 8569 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 8570 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
8571 | |
8572 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 8573 | and the strings associated with various map elements. |
8150596a RS |
8574 | |
8575 | This can be done with X menus or with menus put in the minibuf. | |
8576 | These are done in different ways, depending on how the input will be read. | |
8577 | Menus using X are done after auto-saving in read-char, getting the input | |
8578 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
8579 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 8580 | |
7617111f | 8581 | static Lisp_Object |
8150596a | 8582 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
8583 | int nmaps; |
8584 | Lisp_Object *maps; | |
8585 | Lisp_Object prev_event; | |
8586 | int *used_mouse_menu; | |
284f4730 | 8587 | { |
7d6de002 | 8588 | int mapno; |
7d6de002 | 8589 | |
6569cc8d JB |
8590 | if (used_mouse_menu) |
8591 | *used_mouse_menu = 0; | |
284f4730 JB |
8592 | |
8593 | /* Use local over global Menu maps */ | |
8594 | ||
7d6de002 RS |
8595 | if (! menu_prompting) |
8596 | return Qnil; | |
8597 | ||
03361bcc RS |
8598 | /* Optionally disregard all but the global map. */ |
8599 | if (inhibit_local_menu_bar_menus) | |
8600 | { | |
8601 | maps += (nmaps - 1); | |
8602 | nmaps = 1; | |
8603 | } | |
8604 | ||
1f5b1641 | 8605 | #ifdef HAVE_MENUS |
7d6de002 RS |
8606 | /* If we got to this point via a mouse click, |
8607 | use a real menu for mouse selection. */ | |
5a8d99e0 | 8608 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
8609 | && !EQ (XCAR (prev_event), Qmenu_bar) |
8610 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
8611 | { |
8612 | /* Display the menu and get the selection. */ | |
8613 | Lisp_Object *realmaps | |
8614 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
8615 | Lisp_Object value; | |
8616 | int nmaps1 = 0; | |
8617 | ||
8618 | /* Use the maps that are not nil. */ | |
8619 | for (mapno = 0; mapno < nmaps; mapno++) | |
8620 | if (!NILP (maps[mapno])) | |
8621 | realmaps[nmaps1++] = maps[mapno]; | |
8622 | ||
8623 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
8624 | if (CONSP (value)) |
8625 | { | |
68f297c5 RS |
8626 | Lisp_Object tem; |
8627 | ||
7539e11f | 8628 | record_menu_key (XCAR (value)); |
8eb4d8ef | 8629 | |
68f297c5 RS |
8630 | /* If we got multiple events, unread all but |
8631 | the first. | |
8632 | There is no way to prevent those unread events | |
8633 | from showing up later in last_nonmenu_event. | |
8634 | So turn symbol and integer events into lists, | |
8635 | to indicate that they came from a mouse menu, | |
8636 | so that when present in last_nonmenu_event | |
8637 | they won't confuse things. */ | |
9beb8baa | 8638 | for (tem = XCDR (value); CONSP (tem); tem = XCDR (tem)) |
8eb4d8ef | 8639 | { |
7539e11f KR |
8640 | record_menu_key (XCAR (tem)); |
8641 | if (SYMBOLP (XCAR (tem)) | |
8642 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8643 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8644 | } |
68f297c5 | 8645 | |
663258f2 JB |
8646 | /* If we got more than one event, put all but the first |
8647 | onto this list to be read later. | |
8648 | Return just the first event now. */ | |
24597608 | 8649 | Vunread_command_events |
7539e11f KR |
8650 | = nconc2 (XCDR (value), Vunread_command_events); |
8651 | value = XCAR (value); | |
663258f2 | 8652 | } |
1c90c381 | 8653 | else if (NILP (value)) |
dcc408a0 | 8654 | value = Qt; |
6569cc8d JB |
8655 | if (used_mouse_menu) |
8656 | *used_mouse_menu = 1; | |
7d6de002 RS |
8657 | return value; |
8658 | } | |
1f5b1641 | 8659 | #endif /* HAVE_MENUS */ |
8150596a RS |
8660 | return Qnil ; |
8661 | } | |
8662 | ||
af2b7cc9 KS |
8663 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8664 | We make this bigger when necessary, and never free it. */ | |
8665 | static char *read_char_minibuf_menu_text; | |
8666 | /* Size of that buffer. */ | |
8667 | static int read_char_minibuf_menu_width; | |
8668 | ||
8150596a | 8669 | static Lisp_Object |
24597608 | 8670 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8671 | int commandflag ; |
8672 | int nmaps; | |
8673 | Lisp_Object *maps; | |
8674 | { | |
8675 | int mapno; | |
8676 | register Lisp_Object name; | |
af2b7cc9 | 8677 | int nlength; |
14e40288 | 8678 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8679 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8680 | int idx = -1; |
af2b7cc9 | 8681 | int nobindings = 1; |
8150596a | 8682 | Lisp_Object rest, vector; |
af2b7cc9 | 8683 | char *menu; |
8150596a | 8684 | |
8c907a56 | 8685 | vector = Qnil; |
7189cad8 | 8686 | name = Qnil; |
8c907a56 | 8687 | |
8150596a RS |
8688 | if (! menu_prompting) |
8689 | return Qnil; | |
8690 | ||
f6bb4883 CY |
8691 | /* Get the menu name from the first map that has one (a prompt string). */ |
8692 | for (mapno = 0; mapno < nmaps; mapno++) | |
8693 | { | |
8694 | name = Fkeymap_prompt (maps[mapno]); | |
8695 | if (!NILP (name)) | |
8696 | break; | |
8697 | } | |
8698 | ||
8699 | /* If we don't have any menus, just read a character normally. */ | |
8700 | if (!STRINGP (name)) | |
8701 | return Qnil; | |
8702 | ||
af2b7cc9 | 8703 | /* Make sure we have a big enough buffer for the menu text. */ |
f6bb4883 | 8704 | width = max (width, SBYTES (name)); |
af2b7cc9 KS |
8705 | if (read_char_minibuf_menu_text == 0) |
8706 | { | |
8707 | read_char_minibuf_menu_width = width + 4; | |
8708 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8709 | } | |
8710 | else if (width + 4 > read_char_minibuf_menu_width) | |
8711 | { | |
8712 | read_char_minibuf_menu_width = width + 4; | |
8713 | read_char_minibuf_menu_text | |
8714 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8715 | } | |
8716 | menu = read_char_minibuf_menu_text; | |
8717 | ||
af2b7cc9 | 8718 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8719 | strcpy (menu, SDATA (name)); |
8720 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8721 | menu[nlength++] = ':'; |
8722 | menu[nlength++] = ' '; | |
8723 | menu[nlength] = 0; | |
8724 | ||
7d6de002 RS |
8725 | /* Start prompting at start of first map. */ |
8726 | mapno = 0; | |
8727 | rest = maps[mapno]; | |
284f4730 | 8728 | |
af2b7cc9 KS |
8729 | /* Present the documented bindings, a line at a time. */ |
8730 | while (1) | |
284f4730 | 8731 | { |
af2b7cc9 KS |
8732 | int notfirst = 0; |
8733 | int i = nlength; | |
8734 | Lisp_Object obj; | |
8735 | int ch; | |
8736 | Lisp_Object orig_defn_macro; | |
284f4730 | 8737 | |
af2b7cc9 KS |
8738 | /* Loop over elements of map. */ |
8739 | while (i < width) | |
284f4730 | 8740 | { |
af2b7cc9 | 8741 | Lisp_Object elt; |
284f4730 | 8742 | |
af2b7cc9 KS |
8743 | /* If reached end of map, start at beginning of next map. */ |
8744 | if (NILP (rest)) | |
8745 | { | |
8746 | mapno++; | |
8747 | /* At end of last map, wrap around to first map if just starting, | |
8748 | or end this line if already have something on it. */ | |
8749 | if (mapno == nmaps) | |
8750 | { | |
8751 | mapno = 0; | |
8752 | if (notfirst || nobindings) break; | |
8753 | } | |
8754 | rest = maps[mapno]; | |
8755 | } | |
7d6de002 | 8756 | |
af2b7cc9 KS |
8757 | /* Look at the next element of the map. */ |
8758 | if (idx >= 0) | |
8759 | elt = XVECTOR (vector)->contents[idx]; | |
8760 | else | |
8761 | elt = Fcar_safe (rest); | |
7d6de002 | 8762 | |
af2b7cc9 | 8763 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8764 | { |
af2b7cc9 KS |
8765 | /* If we found a dense table in the keymap, |
8766 | advanced past it, but start scanning its contents. */ | |
8767 | rest = Fcdr_safe (rest); | |
8768 | vector = elt; | |
8769 | idx = 0; | |
284f4730 | 8770 | } |
7d6de002 RS |
8771 | else |
8772 | { | |
af2b7cc9 KS |
8773 | /* An ordinary element. */ |
8774 | Lisp_Object event, tem; | |
7d6de002 | 8775 | |
af2b7cc9 KS |
8776 | if (idx < 0) |
8777 | { | |
8778 | event = Fcar_safe (elt); /* alist */ | |
8779 | elt = Fcdr_safe (elt); | |
8780 | } | |
8781 | else | |
8782 | { | |
8783 | XSETINT (event, idx); /* vector */ | |
8784 | } | |
284f4730 | 8785 | |
af2b7cc9 | 8786 | /* Ignore the element if it has no prompt string. */ |
ef7417fd | 8787 | if (INTEGERP (event) && parse_menu_item (elt, -1)) |
af2b7cc9 KS |
8788 | { |
8789 | /* 1 if the char to type matches the string. */ | |
8790 | int char_matches; | |
8791 | Lisp_Object upcased_event, downcased_event; | |
8792 | Lisp_Object desc = Qnil; | |
8793 | Lisp_Object s | |
8794 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8795 | ||
8796 | upcased_event = Fupcase (event); | |
8797 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8798 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8799 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8800 | if (! char_matches) |
8801 | desc = Fsingle_key_description (event, Qnil); | |
8802 | ||
8803 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8804 | the prefix is what the user has already typed. */ | |
8805 | tem | |
8806 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8807 | if (!NILP (tem)) | |
8808 | /* Insert equivalent keybinding. */ | |
8809 | s = concat2 (s, tem); | |
8810 | #endif | |
8811 | tem | |
8812 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8813 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8814 | { | |
8815 | /* Insert button prefix. */ | |
8816 | Lisp_Object selected | |
8817 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8818 | if (EQ (tem, QCradio)) | |
8819 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8820 | else | |
8821 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8822 | s = concat2 (tem, s); | |
8823 | } | |
c60ee5e7 | 8824 | |
af2b7cc9 KS |
8825 | |
8826 | /* If we have room for the prompt string, add it to this line. | |
8827 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8828 | if ((SCHARS (s) + i + 2 |
8829 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8830 | < width |
8831 | || !notfirst) | |
8832 | { | |
8833 | int thiswidth; | |
8834 | ||
8835 | /* Punctuate between strings. */ | |
8836 | if (notfirst) | |
8837 | { | |
8838 | strcpy (menu + i, ", "); | |
8839 | i += 2; | |
8840 | } | |
8841 | notfirst = 1; | |
8842 | nobindings = 0 ; | |
8843 | ||
8844 | /* If the char to type doesn't match the string's | |
8845 | first char, explicitly show what char to type. */ | |
8846 | if (! char_matches) | |
8847 | { | |
8848 | /* Add as much of string as fits. */ | |
d5db4077 | 8849 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8850 | if (thiswidth + i > width) |
8851 | thiswidth = width - i; | |
d5db4077 | 8852 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8853 | i += thiswidth; |
8854 | strcpy (menu + i, " = "); | |
8855 | i += 3; | |
8856 | } | |
8857 | ||
8858 | /* Add as much of string as fits. */ | |
d5db4077 | 8859 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8860 | if (thiswidth + i > width) |
8861 | thiswidth = width - i; | |
d5db4077 | 8862 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8863 | i += thiswidth; |
8864 | menu[i] = 0; | |
8865 | } | |
8866 | else | |
8867 | { | |
8868 | /* If this element does not fit, end the line now, | |
8869 | and save the element for the next line. */ | |
8870 | strcpy (menu + i, "..."); | |
8871 | break; | |
8872 | } | |
8873 | } | |
8874 | ||
8875 | /* Move past this element. */ | |
8876 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8877 | /* Handle reaching end of dense table. */ | |
8878 | idx = -1; | |
8879 | if (idx >= 0) | |
8880 | idx++; | |
8881 | else | |
8882 | rest = Fcdr_safe (rest); | |
8883 | } | |
325309f5 | 8884 | } |
8150596a | 8885 | |
af2b7cc9 | 8886 | /* Prompt with that and read response. */ |
c60ee5e7 | 8887 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8888 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8889 | |
af2b7cc9 KS |
8890 | /* Make believe its not a keyboard macro in case the help char |
8891 | is pressed. Help characters are not recorded because menu prompting | |
8892 | is not used on replay. | |
8893 | */ | |
8894 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8895 | current_kboard->defining_kbd_macro = Qnil; | |
8896 | do | |
179f689c | 8897 | obj = read_char (commandflag, 0, 0, Qt, 0, NULL); |
af2b7cc9 KS |
8898 | while (BUFFERP (obj)); |
8899 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8900 | |
af2b7cc9 KS |
8901 | if (!INTEGERP (obj)) |
8902 | return obj; | |
9688ff53 KL |
8903 | else if (XINT (obj) == -2) |
8904 | return obj; | |
af2b7cc9 KS |
8905 | else |
8906 | ch = XINT (obj); | |
8907 | ||
8908 | if (! EQ (obj, menu_prompt_more_char) | |
8909 | && (!INTEGERP (menu_prompt_more_char) | |
8910 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8911 | { | |
8912 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8913 | store_kbd_macro_char (obj); | |
8914 | return obj; | |
8915 | } | |
8916 | /* Help char - go round again */ | |
8917 | } | |
284f4730 | 8918 | } |
284f4730 JB |
8919 | \f |
8920 | /* Reading key sequences. */ | |
8921 | ||
8922 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8923 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8924 | keymap, or nil otherwise. Return the index of the first keymap in | |
8925 | which KEY has any binding, or NMAPS if no map has a binding. | |
8926 | ||
8927 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8928 | followed by the corresponding non-meta character. Keymaps in | |
8929 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8930 | NEXT. | |
8931 | ||
88cb0656 JB |
8932 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8933 | unmodified. | |
8934 | ||
569871d2 | 8935 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8936 | |
8937 | static int | |
4e50f26a | 8938 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8939 | Lisp_Object key; |
8940 | Lisp_Object *current, *defs, *next; | |
8941 | int nmaps; | |
8942 | { | |
8943 | int i, first_binding; | |
8944 | ||
284f4730 JB |
8945 | first_binding = nmaps; |
8946 | for (i = nmaps - 1; i >= 0; i--) | |
8947 | { | |
8948 | if (! NILP (current[i])) | |
8949 | { | |
fe5b94c5 | 8950 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8951 | if (! NILP (defs[i])) |
8952 | first_binding = i; | |
8953 | } | |
8954 | else | |
8955 | defs[i] = Qnil; | |
8956 | } | |
8957 | ||
284f4730 | 8958 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8959 | if (first_binding < nmaps) |
8960 | for (i = 0; i < nmaps; i++) | |
02067692 | 8961 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8962 | |
8963 | return first_binding; | |
8964 | } | |
8965 | ||
a7f26f28 SM |
8966 | /* Structure used to keep track of partial application of key remapping |
8967 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8968 | typedef struct keyremap | |
8969 | { | |
c2028ac6 RS |
8970 | /* This is the map originally specified for this use. */ |
8971 | Lisp_Object parent; | |
8972 | /* This is a submap reached by looking up, in PARENT, | |
8973 | the events from START to END. */ | |
8974 | Lisp_Object map; | |
8975 | /* Positions [START, END) in the key sequence buffer | |
8976 | are the key that we have scanned so far. | |
8977 | Those events are the ones that we will replace | |
8978 | if PAREHT maps them into a key sequence. */ | |
a7f26f28 SM |
8979 | int start, end; |
8980 | } keyremap; | |
8981 | ||
fe5b94c5 SM |
8982 | /* Lookup KEY in MAP. |
8983 | MAP is a keymap mapping keys to key vectors or functions. | |
8984 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8985 | the function is called with PROMPT as parameter and its return | |
8986 | value is used as the return value of this function (after checking | |
8987 | that it is indeed a vector). */ | |
8988 | ||
8989 | static Lisp_Object | |
8990 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8991 | Lisp_Object map, key, prompt; | |
8992 | int do_funcall; | |
8993 | { | |
8994 | Lisp_Object next; | |
6b61353c | 8995 | |
fe5b94c5 SM |
8996 | next = access_keymap (map, key, 1, 0, 1); |
8997 | ||
8998 | /* Handle symbol with autoload definition. */ | |
8999 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
9000 | && CONSP (XSYMBOL (next)->function) | |
9001 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
9002 | do_autoload (XSYMBOL (next)->function, next); | |
9003 | ||
9004 | /* Handle a symbol whose function definition is a keymap | |
9005 | or an array. */ | |
9006 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
592c0e80 | 9007 | && (ARRAYP (XSYMBOL (next)->function) |
fe5b94c5 SM |
9008 | || KEYMAPP (XSYMBOL (next)->function))) |
9009 | next = XSYMBOL (next)->function; | |
6b61353c | 9010 | |
fe5b94c5 SM |
9011 | /* If the keymap gives a function, not an |
9012 | array, then call the function with one arg and use | |
9013 | its value instead. */ | |
9014 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
9015 | { | |
9016 | Lisp_Object tem; | |
9017 | tem = next; | |
9018 | ||
9019 | next = call1 (next, prompt); | |
9020 | /* If the function returned something invalid, | |
9021 | barf--don't ignore it. | |
9022 | (To ignore it safely, we would need to gcpro a bunch of | |
9023 | other variables.) */ | |
9024 | if (! (VECTORP (next) || STRINGP (next))) | |
9025 | error ("Function %s returns invalid key sequence", tem); | |
9026 | } | |
9027 | return next; | |
9028 | } | |
9029 | ||
9030 | /* Do one step of the key remapping used for function-key-map and | |
9031 | key-translation-map: | |
9032 | KEYBUF is the buffer holding the input events. | |
9033 | BUFSIZE is its maximum size. | |
9034 | FKEY is a pointer to the keyremap structure to use. | |
9035 | INPUT is the index of the last element in KEYBUF. | |
9036 | DOIT if non-zero says that the remapping can actually take place. | |
9037 | DIFF is used to return the number of keys added/removed by the remapping. | |
9038 | PARENT is the root of the keymap. | |
9039 | PROMPT is the prompt to use if the remapping happens through a function. | |
9040 | The return value is non-zero if the remapping actually took place. */ | |
9041 | ||
9042 | static int | |
24d80a06 SM |
9043 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
9044 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
9045 | keyremap *fkey; |
9046 | int input, doit, *diff, bufsize; | |
9047 | { | |
9048 | Lisp_Object next, key; | |
9049 | ||
9050 | key = keybuf[fkey->end++]; | |
c2028ac6 RS |
9051 | |
9052 | if (KEYMAPP (fkey->parent)) | |
9053 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
9054 | else | |
9055 | next = Qnil; | |
fe5b94c5 SM |
9056 | |
9057 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
9058 | map and we're in a position to do the key remapping, replace it with | |
9059 | the binding and restart with fkey->start at the end. */ | |
9060 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
9061 | { | |
9062 | int len = XFASTINT (Flength (next)); | |
9063 | int i; | |
9064 | ||
9065 | *diff = len - (fkey->end - fkey->start); | |
9066 | ||
9067 | if (input + *diff >= bufsize) | |
9068 | error ("Key sequence too long"); | |
9069 | ||
9070 | /* Shift the keys that follow fkey->end. */ | |
9071 | if (*diff < 0) | |
9072 | for (i = fkey->end; i < input; i++) | |
9073 | keybuf[i + *diff] = keybuf[i]; | |
9074 | else if (*diff > 0) | |
9075 | for (i = input - 1; i >= fkey->end; i--) | |
9076 | keybuf[i + *diff] = keybuf[i]; | |
9077 | /* Overwrite the old keys with the new ones. */ | |
9078 | for (i = 0; i < len; i++) | |
9079 | keybuf[fkey->start + i] | |
9080 | = Faref (next, make_number (i)); | |
9081 | ||
9082 | fkey->start = fkey->end += *diff; | |
24d80a06 | 9083 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9084 | |
9085 | return 1; | |
9086 | } | |
9087 | ||
9088 | fkey->map = get_keymap (next, 0, 1); | |
9089 | ||
9090 | /* If we no longer have a bound suffix, try a new position for | |
9091 | fkey->start. */ | |
9092 | if (!CONSP (fkey->map)) | |
9093 | { | |
9094 | fkey->end = ++fkey->start; | |
24d80a06 | 9095 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9096 | } |
9097 | return 0; | |
9098 | } | |
a7f26f28 | 9099 | |
df0f2ba1 | 9100 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
9101 | storing it in KEYBUF, a buffer of size BUFSIZE. |
9102 | Prompt with PROMPT. | |
284f4730 | 9103 | Return the length of the key sequence stored. |
dcc408a0 | 9104 | Return -1 if the user rejected a command menu. |
284f4730 | 9105 | |
f4255cd1 JB |
9106 | Echo starting immediately unless `prompt' is 0. |
9107 | ||
9108 | Where a key sequence ends depends on the currently active keymaps. | |
9109 | These include any minor mode keymaps active in the current buffer, | |
9110 | the current buffer's local map, and the global map. | |
9111 | ||
9112 | If a key sequence has no other bindings, we check Vfunction_key_map | |
9113 | to see if some trailing subsequence might be the beginning of a | |
9114 | function key's sequence. If so, we try to read the whole function | |
9115 | key, and substitute its symbolic name into the key sequence. | |
9116 | ||
fbcd35bd JB |
9117 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
9118 | `double-' events into similar click events, if that would make them | |
9119 | bound. We try to turn `triple-' events first into `double-' events, | |
9120 | then into clicks. | |
f4255cd1 JB |
9121 | |
9122 | If we get a mouse click in a mode line, vertical divider, or other | |
9123 | non-text area, we treat the click as if it were prefixed by the | |
9124 | symbol denoting that area - `mode-line', `vertical-line', or | |
9125 | whatever. | |
9126 | ||
9127 | If the sequence starts with a mouse click, we read the key sequence | |
9128 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 9129 | |
f4255cd1 JB |
9130 | If the user switches frames in the midst of a key sequence, we put |
9131 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
9132 | read_char will return it. |
9133 | ||
9134 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
9135 | from the selected window's buffer. */ | |
48e416d4 | 9136 | |
284f4730 | 9137 | static int |
ce98e608 | 9138 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 9139 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
9140 | Lisp_Object *keybuf; |
9141 | int bufsize; | |
84d91fda | 9142 | Lisp_Object prompt; |
309b0fc8 | 9143 | int dont_downcase_last; |
ce98e608 | 9144 | int can_return_switch_frame; |
f571ae0d | 9145 | int fix_current_buffer; |
284f4730 | 9146 | { |
db14cfc5 | 9147 | volatile Lisp_Object from_string; |
aed13378 | 9148 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 9149 | |
284f4730 | 9150 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 9151 | volatile int t; |
284f4730 | 9152 | |
284f4730 JB |
9153 | /* The length of the echo buffer when we started reading, and |
9154 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
9155 | volatile int echo_start; |
9156 | volatile int keys_start; | |
284f4730 JB |
9157 | |
9158 | /* The number of keymaps we're scanning right now, and the number of | |
9159 | keymaps we have allocated space for. */ | |
8c907a56 GM |
9160 | volatile int nmaps; |
9161 | volatile int nmaps_allocated = 0; | |
284f4730 | 9162 | |
284f4730 JB |
9163 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
9164 | the current keymaps. */ | |
8c907a56 | 9165 | Lisp_Object *volatile defs = NULL; |
284f4730 | 9166 | |
f4255cd1 JB |
9167 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
9168 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 9169 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 9170 | |
e0dff5f6 | 9171 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 9172 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 9173 | |
30690496 DL |
9174 | /* The map from the `keymap' property to start out with at start of |
9175 | key sequence. */ | |
8c907a56 | 9176 | volatile Lisp_Object orig_keymap; |
30690496 | 9177 | |
e0dff5f6 RS |
9178 | /* 1 if we have already considered switching to the local-map property |
9179 | of the place where a mouse click occurred. */ | |
8c907a56 | 9180 | volatile int localized_local_map = 0; |
e0dff5f6 | 9181 | |
9de5eb68 | 9182 | /* The index in submaps[] of the first keymap that has a binding for |
f4255cd1 | 9183 | this key sequence. In other words, the lowest i such that |
9de5eb68 | 9184 | submaps[i] is non-nil. */ |
8c907a56 | 9185 | volatile int first_binding; |
7189cad8 | 9186 | /* Index of the first key that has no binding. |
a7f26f28 | 9187 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 9188 | volatile int first_unbound; |
284f4730 | 9189 | |
f4255cd1 | 9190 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
9191 | input key. |
9192 | ||
9193 | We use this to recover after recognizing a function key. Once we | |
9194 | realize that a suffix of the current key sequence is actually a | |
9195 | function key's escape sequence, we replace the suffix with the | |
9196 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
9197 | contains a new and different key sequence, so the echo area, |
9198 | this_command_keys, and the submaps and defs arrays are wrong. In | |
9199 | this situation, we set mock_input to t, set t to 0, and jump to | |
9200 | restart_sequence; the loop will read keys from keybuf up until | |
9201 | mock_input, thus rebuilding the state; and then it will resume | |
9202 | reading characters from the keyboard. */ | |
8c907a56 | 9203 | volatile int mock_input = 0; |
284f4730 | 9204 | |
253598e4 | 9205 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
9206 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
9207 | and fkey.map is its binding. | |
253598e4 | 9208 | |
f4255cd1 JB |
9209 | These might be > t, indicating that all function key scanning |
9210 | should hold off until t reaches them. We do this when we've just | |
9211 | recognized a function key, to avoid searching for the function | |
9212 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 9213 | volatile keyremap fkey; |
284f4730 | 9214 | |
4f4a84ec SM |
9215 | /* Likewise, for key_translation_map and input-decode-map. */ |
9216 | volatile keyremap keytran, indec; | |
a612e298 | 9217 | |
025ae953 CY |
9218 | /* Non-zero if we are trying to map a key by changing an upper-case |
9219 | letter to lower case, or a shifted function key to an unshifted | |
9220 | one. */ | |
9221 | volatile int shift_translated = 0; | |
9222 | ||
fe5b94c5 SM |
9223 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
9224 | a key sequence, we put it off for later. | |
9225 | While we're reading, we keep the event here. */ | |
8c907a56 | 9226 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 9227 | |
51763820 BF |
9228 | /* See the comment below... */ |
9229 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 9230 | Lisp_Object first_event; |
51763820 | 9231 | #endif |
4efda7dd | 9232 | |
8c907a56 GM |
9233 | volatile Lisp_Object original_uppercase; |
9234 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 9235 | |
bc536d84 | 9236 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 9237 | int dummyflag = 0; |
bc536d84 | 9238 | |
3b9189f8 RS |
9239 | struct buffer *starting_buffer; |
9240 | ||
2dc00208 GM |
9241 | /* List of events for which a fake prefix key has been generated. */ |
9242 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
9243 | ||
03cee6ae | 9244 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 9245 | int junk; |
03cee6ae | 9246 | #endif |
4efda7dd | 9247 | |
2dc00208 GM |
9248 | struct gcpro gcpro1; |
9249 | ||
9250 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
9251 | raw_keybuf_count = 0; |
9252 | ||
4efda7dd RS |
9253 | last_nonmenu_event = Qnil; |
9254 | ||
9255 | delayed_switch_frame = Qnil; | |
033b73e2 | 9256 | |
284f4730 JB |
9257 | if (INTERACTIVE) |
9258 | { | |
84d91fda | 9259 | if (!NILP (prompt)) |
a4ef85ee | 9260 | echo_prompt (prompt); |
f2647d04 DL |
9261 | else if (cursor_in_echo_area |
9262 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
9263 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
9264 | /* This doesn't put in a dash if the echo buffer is empty, so |
9265 | you don't always see a dash hanging out in the minibuffer. */ | |
9266 | echo_dash (); | |
284f4730 JB |
9267 | } |
9268 | ||
f4255cd1 JB |
9269 | /* Record the initial state of the echo area and this_command_keys; |
9270 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 9271 | if (INTERACTIVE) |
df0f2ba1 | 9272 | echo_start = echo_length (); |
f4255cd1 | 9273 | keys_start = this_command_key_count; |
6321824f | 9274 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 9275 | |
51763820 BF |
9276 | #if defined (GOBBLE_FIRST_EVENT) |
9277 | /* This doesn't quite work, because some of the things that read_char | |
9278 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 9279 | this work right. */ |
51763820 | 9280 | |
4efda7dd RS |
9281 | /* Read the first char of the sequence specially, before setting |
9282 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 9283 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
179f689c | 9284 | &junk, NULL); |
51763820 | 9285 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 9286 | |
24a40fbb GM |
9287 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9288 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 9289 | from_string = Qnil; |
e0dff5f6 | 9290 | |
f1ba6ccd CY |
9291 | /* We jump here when we need to reinitialize fkey and keytran; this |
9292 | happens if we switch keyboards between rescans. */ | |
9293 | replay_entire_sequence: | |
9294 | ||
4f4a84ec | 9295 | indec.map = indec.parent = current_kboard->Vinput_decode_map; |
d6805803 | 9296 | fkey.map = fkey.parent = current_kboard->Vlocal_function_key_map; |
4f4a84ec SM |
9297 | keytran.map = keytran.parent = Vkey_translation_map; |
9298 | indec.start = indec.end = 0; | |
3f87f67e KL |
9299 | fkey.start = fkey.end = 0; |
9300 | keytran.start = keytran.end = 0; | |
d6805803 | 9301 | |
3278f20e SM |
9302 | /* We jump here when the key sequence has been thoroughly changed, and |
9303 | we need to rescan it starting from the beginning. When we jump here, | |
9304 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
9305 | replay_sequence: | |
9306 | ||
3b9189f8 | 9307 | starting_buffer = current_buffer; |
7189cad8 | 9308 | first_unbound = bufsize + 1; |
3b9189f8 | 9309 | |
f4255cd1 | 9310 | /* Build our list of keymaps. |
07d2b8de JB |
9311 | If we recognize a function key and replace its escape sequence in |
9312 | keybuf with its symbol, or if the sequence starts with a mouse | |
9313 | click and we need to switch buffers, we jump back here to rebuild | |
9314 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 9315 | nmaps = 0; |
284f4730 | 9316 | |
4c0240d2 | 9317 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
4cbedc16 | 9318 | { |
4c0240d2 | 9319 | if (2 > nmaps_allocated) |
4cbedc16 | 9320 | { |
4c0240d2 RS |
9321 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); |
9322 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9323 | nmaps_allocated = 2; | |
4cbedc16 | 9324 | } |
07024c43 | 9325 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; |
4c0240d2 RS |
9326 | } |
9327 | else if (!NILP (Voverriding_local_map)) | |
9328 | { | |
9329 | if (2 > nmaps_allocated) | |
9330 | { | |
9331 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); | |
9332 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9333 | nmaps_allocated = 2; | |
9334 | } | |
07024c43 | 9335 | submaps[nmaps++] = Voverriding_local_map; |
4cbedc16 RS |
9336 | } |
9337 | else | |
9338 | { | |
4cbedc16 RS |
9339 | int nminor; |
9340 | int total; | |
9341 | Lisp_Object *maps; | |
9342 | ||
9343 | nminor = current_minor_maps (0, &maps); | |
9344 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
9345 | ||
9346 | if (total > nmaps_allocated) | |
9347 | { | |
9348 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
9349 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
9350 | nmaps_allocated = total; | |
9351 | } | |
9352 | ||
9353 | if (!NILP (orig_keymap)) | |
9354 | submaps[nmaps++] = orig_keymap; | |
9355 | ||
7d1c4866 | 9356 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
9357 | nminor * sizeof (submaps[0])); |
9358 | ||
9359 | nmaps += nminor; | |
9360 | ||
9361 | submaps[nmaps++] = orig_local_map; | |
9362 | } | |
9363 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
9364 | |
9365 | /* Find an accurate initial value for first_binding. */ | |
9366 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 9367 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
9368 | break; |
9369 | ||
3b9189f8 | 9370 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
9371 | t = 0; |
9372 | ||
9373 | /* These are no-ops the first time through, but if we restart, they | |
9374 | revert the echo area and this_command_keys to their original state. */ | |
9375 | this_command_key_count = keys_start; | |
df0f2ba1 | 9376 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
9377 | echo_truncate (echo_start); |
9378 | ||
cca310da JB |
9379 | /* If the best binding for the current key sequence is a keymap, or |
9380 | we may be looking at a function key's escape sequence, keep on | |
9381 | reading. */ | |
a7f26f28 SM |
9382 | while (first_binding < nmaps |
9383 | /* Keep reading as long as there's a prefix binding. */ | |
9384 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
9385 | /* Don't return in the middle of a possible function key sequence, |
9386 | if the only bindings we found were via case conversion. | |
9387 | Thus, if ESC O a has a function-key-map translation | |
9388 | and ESC o has a binding, don't return after ESC O, | |
9389 | so that we can translate ESC O plus the next character. */ | |
4f4a84ec | 9390 | : (/* indec.start < t || fkey.start < t || */ keytran.start < t)) |
284f4730 JB |
9391 | { |
9392 | Lisp_Object key; | |
7d6de002 | 9393 | int used_mouse_menu = 0; |
284f4730 | 9394 | |
7b4aedb9 JB |
9395 | /* Where the last real key started. If we need to throw away a |
9396 | key that has expanded into more than one element of keybuf | |
9397 | (say, a mouse click on the mode line which is being treated | |
9398 | as [mode-line (mouse-...)], then we backtrack to this point | |
9399 | of keybuf. */ | |
8c907a56 | 9400 | volatile int last_real_key_start; |
7b4aedb9 | 9401 | |
0a7f1fc0 JB |
9402 | /* These variables are analogous to echo_start and keys_start; |
9403 | while those allow us to restart the entire key sequence, | |
9404 | echo_local_start and keys_local_start allow us to throw away | |
9405 | just one key. */ | |
8c907a56 | 9406 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 9407 | |
4f4a84ec SM |
9408 | eassert (indec.end == t || (indec.end > t && indec.end <= mock_input)); |
9409 | eassert (indec.start <= indec.end); | |
fe5b94c5 SM |
9410 | eassert (fkey.start <= fkey.end); |
9411 | eassert (keytran.start <= keytran.end); | |
4f4a84ec SM |
9412 | /* key-translation-map is applied *after* function-key-map |
9413 | which is itself applied *after* input-decode-map. */ | |
9414 | eassert (fkey.end <= indec.start); | |
a7f26f28 | 9415 | eassert (keytran.end <= fkey.start); |
7189cad8 | 9416 | |
4f4a84ec SM |
9417 | if (/* first_unbound < indec.start && first_unbound < fkey.start && */ |
9418 | first_unbound < keytran.start) | |
7189cad8 SM |
9419 | { /* The prefix upto first_unbound has no binding and has |
9420 | no translation left to do either, so we know it's unbound. | |
9421 | If we don't stop now, we risk staying here indefinitely | |
9422 | (if the user keeps entering fkey or keytran prefixes | |
9423 | like C-c ESC ESC ESC ESC ...) */ | |
9424 | int i; | |
9425 | for (i = first_unbound + 1; i < t; i++) | |
9426 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
9427 | mock_input = t - first_unbound - 1; | |
4f4a84ec SM |
9428 | indec.end = indec.start -= first_unbound + 1; |
9429 | indec.map = indec.parent; | |
a7f26f28 | 9430 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 9431 | fkey.map = fkey.parent; |
a7f26f28 | 9432 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 9433 | keytran.map = keytran.parent; |
7189cad8 SM |
9434 | goto replay_sequence; |
9435 | } | |
9436 | ||
284f4730 | 9437 | if (t >= bufsize) |
3fe8e9a2 | 9438 | error ("Key sequence too long"); |
284f4730 | 9439 | |
f4255cd1 JB |
9440 | if (INTERACTIVE) |
9441 | echo_local_start = echo_length (); | |
9442 | keys_local_start = this_command_key_count; | |
9443 | local_first_binding = first_binding; | |
df0f2ba1 | 9444 | |
f4255cd1 | 9445 | replay_key: |
0a7f1fc0 | 9446 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
9447 | jumped back up to replay_key; in that case, these restore the |
9448 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 9449 | loop. */ |
40932d1a | 9450 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 9451 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
9452 | this_command_key_count = keys_local_start; |
9453 | first_binding = local_first_binding; | |
9454 | ||
7e85b935 RS |
9455 | /* By default, assume each event is "real". */ |
9456 | last_real_key_start = t; | |
9457 | ||
f4255cd1 | 9458 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
9459 | if (t < mock_input) |
9460 | { | |
9461 | key = keybuf[t]; | |
9462 | add_command_key (key); | |
f2647d04 DL |
9463 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9464 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9465 | echo_char (key); |
284f4730 | 9466 | } |
253598e4 JB |
9467 | |
9468 | /* If not, we should actually read a character. */ | |
284f4730 JB |
9469 | else |
9470 | { | |
beecf6a1 | 9471 | { |
c5fdd383 | 9472 | KBOARD *interrupted_kboard = current_kboard; |
788f89eb | 9473 | struct frame *interrupted_frame = SELECTED_FRAME (); |
9688ff53 KL |
9474 | key = read_char (NILP (prompt), nmaps, |
9475 | (Lisp_Object *) submaps, last_nonmenu_event, | |
251bc578 | 9476 | &used_mouse_menu, NULL); |
9688ff53 | 9477 | if (INTEGERP (key) && XINT (key) == -2) /* wrong_kboard_jmpbuf */ |
beecf6a1 | 9478 | { |
e079ecf4 KL |
9479 | int found = 0; |
9480 | struct kboard *k; | |
b3e6f69c | 9481 | |
e079ecf4 KL |
9482 | for (k = all_kboards; k; k = k->next_kboard) |
9483 | if (k == interrupted_kboard) | |
9484 | found = 1; | |
9485 | ||
9486 | if (!found) | |
9487 | { | |
9488 | /* Don't touch interrupted_kboard when it's been | |
9489 | deleted. */ | |
9490 | delayed_switch_frame = Qnil; | |
f1ba6ccd | 9491 | goto replay_entire_sequence; |
e079ecf4 | 9492 | } |
b3e6f69c | 9493 | |
5798cf15 KH |
9494 | if (!NILP (delayed_switch_frame)) |
9495 | { | |
c5fdd383 | 9496 | interrupted_kboard->kbd_queue |
5798cf15 | 9497 | = Fcons (delayed_switch_frame, |
c5fdd383 | 9498 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
9499 | delayed_switch_frame = Qnil; |
9500 | } | |
e079ecf4 | 9501 | |
beecf6a1 | 9502 | while (t > 0) |
c5fdd383 KH |
9503 | interrupted_kboard->kbd_queue |
9504 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
9505 | |
9506 | /* If the side queue is non-empty, ensure it begins with a | |
9507 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 9508 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 9509 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
9510 | !(EVENT_HAS_PARAMETERS (key) |
9511 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
9512 | Qswitch_frame)))) | |
df0f2ba1 KH |
9513 | { |
9514 | Lisp_Object frame; | |
9515 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 9516 | interrupted_kboard->kbd_queue |
df0f2ba1 | 9517 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 9518 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 9519 | } |
beecf6a1 | 9520 | mock_input = 0; |
24a40fbb GM |
9521 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9522 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
f1ba6ccd | 9523 | goto replay_entire_sequence; |
beecf6a1 | 9524 | } |
beecf6a1 | 9525 | } |
284f4730 | 9526 | |
dcc408a0 RS |
9527 | /* read_char returns t when it shows a menu and the user rejects it. |
9528 | Just return -1. */ | |
9529 | if (EQ (key, Qt)) | |
7d18f9ae RS |
9530 | { |
9531 | unbind_to (count, Qnil); | |
2dc00208 | 9532 | UNGCPRO; |
7d18f9ae RS |
9533 | return -1; |
9534 | } | |
dcc408a0 | 9535 | |
f4255cd1 | 9536 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
9537 | Emacs 18 handles this by returning immediately with a |
9538 | zero, so that's what we'll do. */ | |
8c18cbfb | 9539 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 9540 | { |
f4255cd1 | 9541 | t = 0; |
bc536d84 RS |
9542 | /* The Microsoft C compiler can't handle the goto that |
9543 | would go here. */ | |
309b0fc8 | 9544 | dummyflag = 1; |
bc536d84 | 9545 | break; |
cd21b839 | 9546 | } |
df0f2ba1 | 9547 | |
3cb81011 KH |
9548 | /* If the current buffer has been changed from under us, the |
9549 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 9550 | if (BUFFERP (key)) |
3cb81011 | 9551 | { |
5c12e63f | 9552 | timer_resume_idle (); |
3021d3a9 | 9553 | |
3cb81011 | 9554 | mock_input = t; |
f571ae0d RS |
9555 | /* Reset the current buffer from the selected window |
9556 | in case something changed the former and not the latter. | |
9557 | This is to be more consistent with the behavior | |
9558 | of the command_loop_1. */ | |
9559 | if (fix_current_buffer) | |
a94a4335 | 9560 | { |
788f89eb | 9561 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
9562 | Fkill_emacs (Qnil); |
9563 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
9564 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
9565 | } | |
f571ae0d | 9566 | |
24a40fbb GM |
9567 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9568 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
9569 | goto replay_sequence; |
9570 | } | |
9571 | ||
3b9189f8 RS |
9572 | /* If we have a quit that was typed in another frame, and |
9573 | quit_throw_to_read_char switched buffers, | |
9574 | replay to get the right keymap. */ | |
f4e05d97 GM |
9575 | if (INTEGERP (key) |
9576 | && XINT (key) == quit_char | |
9577 | && current_buffer != starting_buffer) | |
3b9189f8 | 9578 | { |
7d18f9ae RS |
9579 | GROW_RAW_KEYBUF; |
9580 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
9581 | keybuf[t++] = key; |
9582 | mock_input = t; | |
9583 | Vquit_flag = Qnil; | |
24a40fbb GM |
9584 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9585 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
9586 | goto replay_sequence; |
9587 | } | |
3cb81011 | 9588 | |
284f4730 | 9589 | Vquit_flag = Qnil; |
7d18f9ae RS |
9590 | |
9591 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 9592 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
9593 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
9594 | { | |
9595 | /* If we're at the beginning of a key sequence, and the caller | |
9596 | says it's okay, go ahead and return this event. If we're | |
9597 | in the midst of a key sequence, delay it until the end. */ | |
9598 | if (t > 0 || !can_return_switch_frame) | |
9599 | { | |
9600 | delayed_switch_frame = key; | |
9601 | goto replay_key; | |
9602 | } | |
9603 | } | |
9604 | ||
9605 | GROW_RAW_KEYBUF; | |
4ed4b975 JB |
9606 | ASET (raw_keybuf, raw_keybuf_count, key); |
9607 | raw_keybuf_count++; | |
7e85b935 | 9608 | } |
284f4730 | 9609 | |
df0f2ba1 | 9610 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
9611 | in their CHAR-ADDRESS field. For example, a click on |
9612 | the mode line is prefixed by the symbol `mode-line'. | |
9613 | ||
9614 | Furthermore, key sequences beginning with mouse clicks | |
9615 | are read using the keymaps of the buffer clicked on, not | |
9616 | the current buffer. So we may have to switch the buffer | |
9617 | here. | |
9618 | ||
9619 | When we turn one event into two events, we must make sure | |
9620 | that neither of the two looks like the original--so that, | |
9621 | if we replay the events, they won't be expanded again. | |
9622 | If not for this, such reexpansion could happen either here | |
9623 | or when user programs play with this-command-keys. */ | |
9624 | if (EVENT_HAS_PARAMETERS (key)) | |
9625 | { | |
9b8eb840 | 9626 | Lisp_Object kind; |
6b61353c | 9627 | Lisp_Object string; |
cca310da | 9628 | |
9b8eb840 | 9629 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 9630 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 9631 | { |
9b8eb840 | 9632 | Lisp_Object window, posn; |
f4255cd1 | 9633 | |
4ed4b975 | 9634 | window = POSN_WINDOW (EVENT_START (key)); |
6b61353c | 9635 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 9636 | |
2cf066c3 GM |
9637 | if (CONSP (posn) |
9638 | || (!NILP (fake_prefixed_keys) | |
9639 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 9640 | { |
2cf066c3 GM |
9641 | /* We're looking a second time at an event for which |
9642 | we generated a fake prefix key. Set | |
7e85b935 RS |
9643 | last_real_key_start appropriately. */ |
9644 | if (t > 0) | |
9645 | last_real_key_start = t - 1; | |
cd21b839 | 9646 | } |
7e85b935 RS |
9647 | |
9648 | /* Key sequences beginning with mouse clicks are | |
9649 | read using the keymaps in the buffer clicked on, | |
9650 | not the current buffer. If we're at the | |
9651 | beginning of a key sequence, switch buffers. */ | |
9652 | if (last_real_key_start == 0 | |
8c18cbfb KH |
9653 | && WINDOWP (window) |
9654 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 9655 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 9656 | { |
7d18f9ae | 9657 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
9658 | keybuf[t] = key; |
9659 | mock_input = t + 1; | |
9660 | ||
9661 | /* Arrange to go back to the original buffer once we're | |
9662 | done reading the key sequence. Note that we can't | |
9663 | use save_excursion_{save,restore} here, because they | |
9664 | save point as well as the current buffer; we don't | |
9665 | want to save point, because redisplay may change it, | |
9666 | to accommodate a Fset_window_start or something. We | |
9667 | don't want to do this at the top of the function, | |
9668 | because we may get input from a subprocess which | |
9669 | wants to change the selected window and stuff (say, | |
9670 | emacsclient). */ | |
9671 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
9672 | ||
788f89eb | 9673 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 9674 | Fkill_emacs (Qnil); |
24a40fbb | 9675 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 9676 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
9677 | Qlocal_map); |
9678 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 9679 | goto replay_sequence; |
0a7f1fc0 | 9680 | } |
c60ee5e7 | 9681 | |
e0dff5f6 RS |
9682 | /* For a mouse click, get the local text-property keymap |
9683 | of the place clicked on, rather than point. */ | |
7ee32cda | 9684 | if (last_real_key_start == 0 |
7539e11f | 9685 | && CONSP (XCDR (key)) |
e0dff5f6 | 9686 | && ! localized_local_map) |
5ec75a55 | 9687 | { |
e0dff5f6 RS |
9688 | Lisp_Object map_here, start, pos; |
9689 | ||
9690 | localized_local_map = 1; | |
9691 | start = EVENT_START (key); | |
c60ee5e7 | 9692 | |
6b61353c | 9693 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
9694 | { |
9695 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb | 9696 | if (INTEGERP (pos) |
602ae44c CY |
9697 | && XINT (pos) >= BEGV |
9698 | && XINT (pos) <= ZV) | |
e0dff5f6 | 9699 | { |
30690496 | 9700 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9701 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9702 | if (!EQ (map_here, orig_local_map)) |
9703 | { | |
9704 | orig_local_map = map_here; | |
b74e16a3 | 9705 | ++localized_local_map; |
30690496 | 9706 | } |
b74e16a3 | 9707 | |
30690496 | 9708 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9709 | current_buffer, Qkeymap); |
30690496 DL |
9710 | if (!EQ (map_here, orig_keymap)) |
9711 | { | |
9712 | orig_keymap = map_here; | |
b74e16a3 DK |
9713 | ++localized_local_map; |
9714 | } | |
9715 | ||
9716 | if (localized_local_map > 1) | |
9717 | { | |
30690496 DL |
9718 | keybuf[t] = key; |
9719 | mock_input = t + 1; | |
9720 | ||
e0dff5f6 RS |
9721 | goto replay_sequence; |
9722 | } | |
9723 | } | |
9724 | } | |
9725 | } | |
9726 | ||
9727 | /* Expand mode-line and scroll-bar events into two events: | |
9728 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9729 | if (SYMBOLP (posn) |
9730 | && (NILP (fake_prefixed_keys) | |
9731 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9732 | { |
7e85b935 | 9733 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9734 | error ("Key sequence too long"); |
c60ee5e7 | 9735 | |
2dc00208 GM |
9736 | keybuf[t] = posn; |
9737 | keybuf[t + 1] = key; | |
9738 | mock_input = t + 2; | |
9739 | ||
9740 | /* Record that a fake prefix key has been generated | |
9741 | for KEY. Don't modify the event; this would | |
9742 | prevent proper action when the event is pushed | |
c7f4f573 | 9743 | back into unread-command-events. */ |
2dc00208 | 9744 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9745 | |
9746 | /* If on a mode line string with a local keymap, | |
9747 | reconsider the key sequence with that keymap. */ | |
6b61353c KH |
9748 | if (string = POSN_STRING (EVENT_START (key)), |
9749 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9750 | { |
6b61353c | 9751 | Lisp_Object pos, map, map2; |
7ee32cda | 9752 | |
7ee32cda GM |
9753 | pos = XCDR (string); |
9754 | string = XCAR (string); | |
52e386c2 | 9755 | if (XINT (pos) >= 0 |
d5db4077 | 9756 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9757 | { |
9758 | map = Fget_text_property (pos, Qlocal_map, string); | |
9759 | if (!NILP (map)) | |
9760 | orig_local_map = map; | |
9761 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9762 | if (!NILP (map2)) | |
9763 | orig_keymap = map2; | |
9764 | if (!NILP (map) || !NILP (map2)) | |
9765 | goto replay_sequence; | |
9766 | } | |
7ee32cda GM |
9767 | } |
9768 | ||
7e85b935 | 9769 | goto replay_key; |
5ec75a55 | 9770 | } |
6b61353c KH |
9771 | else if (NILP (from_string) |
9772 | && (string = POSN_STRING (EVENT_START (key)), | |
9773 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9774 | { |
9775 | /* For a click on a string, i.e. overlay string or a | |
9776 | string displayed via the `display' property, | |
9777 | consider `local-map' and `keymap' properties of | |
9778 | that string. */ | |
6b61353c | 9779 | Lisp_Object pos, map, map2; |
db14cfc5 | 9780 | |
db14cfc5 GM |
9781 | pos = XCDR (string); |
9782 | string = XCAR (string); | |
9783 | if (XINT (pos) >= 0 | |
d5db4077 | 9784 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9785 | { |
9786 | map = Fget_text_property (pos, Qlocal_map, string); | |
9787 | if (!NILP (map)) | |
9788 | orig_local_map = map; | |
9789 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9790 | if (!NILP (map2)) | |
9791 | orig_keymap = map2; | |
9792 | ||
9793 | if (!NILP (map) || !NILP (map2)) | |
9794 | { | |
9795 | from_string = string; | |
32949266 CY |
9796 | keybuf[t++] = key; |
9797 | mock_input = t; | |
db14cfc5 GM |
9798 | goto replay_sequence; |
9799 | } | |
9800 | } | |
9801 | } | |
0a7f1fc0 | 9802 | } |
7539e11f | 9803 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9804 | && CONSP (EVENT_START (key)) |
7539e11f | 9805 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9806 | { |
9b8eb840 | 9807 | Lisp_Object posn; |
7e85b935 | 9808 | |
6b61353c | 9809 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9810 | /* Handle menu-bar events: |
9811 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9812 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9813 | { |
9814 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9815 | error ("Key sequence too long"); |
7e85b935 RS |
9816 | keybuf[t] = posn; |
9817 | keybuf[t+1] = key; | |
9818 | ||
9819 | /* Zap the position in key, so we know that we've | |
9820 | expanded it, and don't try to do so again. */ | |
6b61353c KH |
9821 | POSN_SET_POSN (EVENT_START (key), |
9822 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9823 | |
9824 | mock_input = t + 2; | |
9825 | goto replay_sequence; | |
9826 | } | |
8c18cbfb | 9827 | else if (CONSP (posn)) |
7e85b935 RS |
9828 | { |
9829 | /* We're looking at the second event of a | |
9830 | sequence which we expanded before. Set | |
9831 | last_real_key_start appropriately. */ | |
9832 | if (last_real_key_start == t && t > 0) | |
9833 | last_real_key_start = t - 1; | |
9834 | } | |
a6d53864 | 9835 | } |
284f4730 | 9836 | } |
f4255cd1 JB |
9837 | |
9838 | /* We have finally decided that KEY is something we might want | |
9839 | to look up. */ | |
284f4730 JB |
9840 | first_binding = (follow_key (key, |
9841 | nmaps - first_binding, | |
253598e4 | 9842 | submaps + first_binding, |
284f4730 | 9843 | defs + first_binding, |
4e50f26a | 9844 | submaps + first_binding) |
284f4730 | 9845 | + first_binding); |
0a7f1fc0 | 9846 | |
f4255cd1 | 9847 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9848 | if (first_binding < nmaps) |
9849 | /* This is needed for the following scenario: | |
9850 | event 0: a down-event that gets dropped by calling replay_key. | |
9851 | event 1: some normal prefix like C-h. | |
4f4a84ec SM |
9852 | After event 0, first_unbound is 0, after event 1 indec.start, |
9853 | fkey.start, and keytran.start are all 1, so when we see that | |
9854 | C-h is bound, we need to update first_unbound. */ | |
65e0fbbf SM |
9855 | first_unbound = max (t + 1, first_unbound); |
9856 | else | |
0a7f1fc0 | 9857 | { |
9b8eb840 | 9858 | Lisp_Object head; |
c60ee5e7 | 9859 | |
4f4a84ec | 9860 | /* Remember the position to put an upper bound on indec.start. */ |
7189cad8 | 9861 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9862 | |
9b8eb840 | 9863 | head = EVENT_HEAD (key); |
24736fbc | 9864 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9865 | { |
9866 | read_key_sequence_cmd = Vprefix_help_command; | |
9867 | keybuf[t++] = key; | |
9868 | last_nonmenu_event = key; | |
bc536d84 RS |
9869 | /* The Microsoft C compiler can't handle the goto that |
9870 | would go here. */ | |
309b0fc8 | 9871 | dummyflag = 1; |
0d882d52 | 9872 | break; |
7e85b935 RS |
9873 | } |
9874 | ||
8c18cbfb | 9875 | if (SYMBOLP (head)) |
0a7f1fc0 | 9876 | { |
9b8eb840 KH |
9877 | Lisp_Object breakdown; |
9878 | int modifiers; | |
0a7f1fc0 | 9879 | |
9b8eb840 | 9880 | breakdown = parse_modifiers (head); |
7539e11f | 9881 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9882 | /* Attempt to reduce an unbound mouse event to a simpler |
9883 | event that is bound: | |
9884 | Drags reduce to clicks. | |
9885 | Double-clicks reduce to clicks. | |
9886 | Triple-clicks reduce to double-clicks, then to clicks. | |
9887 | Down-clicks are eliminated. | |
9888 | Double-downs reduce to downs, then are eliminated. | |
9889 | Triple-downs reduce to double-downs, then to downs, | |
9890 | then are eliminated. */ | |
9891 | if (modifiers & (down_modifier | drag_modifier | |
9892 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9893 | { |
559f9d04 RS |
9894 | while (modifiers & (down_modifier | drag_modifier |
9895 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9896 | { |
9897 | Lisp_Object new_head, new_click; | |
9898 | if (modifiers & triple_modifier) | |
9899 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9900 | else if (modifiers & double_modifier) |
9901 | modifiers &= ~double_modifier; | |
9902 | else if (modifiers & drag_modifier) | |
9903 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9904 | else |
9905 | { | |
9906 | /* Dispose of this `down' event by simply jumping | |
9907 | back to replay_key, to get another event. | |
9908 | ||
9909 | Note that if this event came from mock input, | |
9910 | then just jumping back to replay_key will just | |
9911 | hand it to us again. So we have to wipe out any | |
9912 | mock input. | |
9913 | ||
9914 | We could delete keybuf[t] and shift everything | |
9915 | after that to the left by one spot, but we'd also | |
9916 | have to fix up any variable that points into | |
9917 | keybuf, and shifting isn't really necessary | |
9918 | anyway. | |
9919 | ||
9920 | Adding prefixes for non-textual mouse clicks | |
9921 | creates two characters of mock input, and both | |
9922 | must be thrown away. If we're only looking at | |
9923 | the prefix now, we can just jump back to | |
9924 | replay_key. On the other hand, if we've already | |
9925 | processed the prefix, and now the actual click | |
9926 | itself is giving us trouble, then we've lost the | |
9927 | state of the keymaps we want to backtrack to, and | |
9928 | we need to replay the whole sequence to rebuild | |
9929 | it. | |
9930 | ||
9931 | Beyond that, only function key expansion could | |
9932 | create more than two keys, but that should never | |
9933 | generate mouse events, so it's okay to zero | |
9934 | mock_input in that case too. | |
9935 | ||
65e0fbbf SM |
9936 | FIXME: The above paragraph seems just plain |
9937 | wrong, if you consider things like | |
9938 | xterm-mouse-mode. -stef | |
9939 | ||
559f9d04 | 9940 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9941 | |
9942 | /* If mock_input > t + 1, the above simplification | |
9943 | will actually end up dropping keys on the floor. | |
9944 | This is probably OK for now, but even | |
4f4a84ec SM |
9945 | if mock_input <= t + 1, we need to adjust indec, |
9946 | fkey, and keytran. | |
017be6c7 SM |
9947 | Typical case [header-line down-mouse-N]: |
9948 | mock_input = 2, t = 1, fkey.end = 1, | |
9949 | last_real_key_start = 0. */ | |
4f4a84ec | 9950 | if (indec.end > last_real_key_start) |
017be6c7 | 9951 | { |
4f4a84ec SM |
9952 | indec.end = indec.start |
9953 | = min (last_real_key_start, indec.start); | |
9954 | indec.map = indec.parent; | |
9955 | if (fkey.end > last_real_key_start) | |
017be6c7 | 9956 | { |
4f4a84ec SM |
9957 | fkey.end = fkey.start |
9958 | = min (last_real_key_start, fkey.start); | |
9959 | fkey.map = fkey.parent; | |
9960 | if (keytran.end > last_real_key_start) | |
9961 | { | |
9962 | keytran.end = keytran.start | |
9963 | = min (last_real_key_start, keytran.start); | |
9964 | keytran.map = keytran.parent; | |
9965 | } | |
017be6c7 SM |
9966 | } |
9967 | } | |
559f9d04 RS |
9968 | if (t == last_real_key_start) |
9969 | { | |
9970 | mock_input = 0; | |
9971 | goto replay_key; | |
9972 | } | |
9973 | else | |
9974 | { | |
9975 | mock_input = last_real_key_start; | |
9976 | goto replay_sequence; | |
9977 | } | |
9978 | } | |
9979 | ||
27203ead | 9980 | new_head |
7539e11f | 9981 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9982 | new_click |
9983 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9984 | |
9985 | /* Look for a binding for this new key. follow_key | |
9986 | promises that it didn't munge submaps the | |
9987 | last time we called it, since key was unbound. */ | |
27203ead RS |
9988 | first_binding |
9989 | = (follow_key (new_click, | |
9990 | nmaps - local_first_binding, | |
9991 | submaps + local_first_binding, | |
9992 | defs + local_first_binding, | |
4e50f26a | 9993 | submaps + local_first_binding) |
27203ead | 9994 | + local_first_binding); |
fbcd35bd JB |
9995 | |
9996 | /* If that click is bound, go for it. */ | |
9997 | if (first_binding < nmaps) | |
9998 | { | |
9999 | key = new_click; | |
10000 | break; | |
10001 | } | |
10002 | /* Otherwise, we'll leave key set to the drag event. */ | |
10003 | } | |
0a7f1fc0 JB |
10004 | } |
10005 | } | |
10006 | } | |
10007 | ||
284f4730 | 10008 | keybuf[t++] = key; |
7d6de002 RS |
10009 | /* Normally, last_nonmenu_event gets the previous key we read. |
10010 | But when a mouse popup menu is being used, | |
10011 | we don't update last_nonmenu_event; it continues to hold the mouse | |
10012 | event that preceded the first level of menu. */ | |
10013 | if (!used_mouse_menu) | |
10014 | last_nonmenu_event = key; | |
284f4730 | 10015 | |
6321824f RS |
10016 | /* Record what part of this_command_keys is the current key sequence. */ |
10017 | this_single_command_key_start = this_command_key_count - t; | |
10018 | ||
4f4a84ec SM |
10019 | /* Look for this sequence in input-decode-map. |
10020 | Scan from indec.end until we find a bound suffix. */ | |
10021 | while (indec.end < t) | |
10022 | { | |
10023 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10024 | int done, diff; | |
10025 | ||
10026 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); | |
10027 | done = keyremap_step (keybuf, bufsize, &indec, max (t, mock_input), | |
10028 | 1, &diff, prompt); | |
10029 | UNGCPRO; | |
10030 | if (done) | |
10031 | { | |
10032 | mock_input = diff + max (t, mock_input); | |
10033 | goto replay_sequence; | |
10034 | } | |
10035 | } | |
10036 | ||
10037 | if (first_binding < nmaps && NILP (submaps[first_binding]) | |
10038 | && indec.start >= t) | |
65e0fbbf | 10039 | /* There is a binding and it's not a prefix. |
4f4a84ec | 10040 | (and it doesn't have any input-decode-map translation pending). |
65e0fbbf SM |
10041 | There is thus no function-key in this sequence. |
10042 | Moving fkey.start is important in this case to allow keytran.start | |
10043 | to go over the sequence before we return (since we keep the | |
10044 | invariant that keytran.end <= fkey.start). */ | |
10045 | { | |
a7f26f28 | 10046 | if (fkey.start < t) |
24d80a06 | 10047 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
10048 | } |
10049 | else | |
10050 | /* If the sequence is unbound, see if we can hang a function key | |
10051 | off the end of it. */ | |
fe5b94c5 | 10052 | /* Continue scan from fkey.end until we find a bound suffix. */ |
4f4a84ec | 10053 | while (fkey.end < indec.start) |
a612e298 | 10054 | { |
4f4a84ec | 10055 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 SM |
10056 | int done, diff; |
10057 | ||
4f4a84ec | 10058 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 SM |
10059 | done = keyremap_step (keybuf, bufsize, &fkey, |
10060 | max (t, mock_input), | |
10061 | /* If there's a binding (i.e. | |
10062 | first_binding >= nmaps) we don't want | |
10063 | to apply this function-key-mapping. */ | |
10064 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 10065 | &diff, prompt); |
fe5b94c5 SM |
10066 | UNGCPRO; |
10067 | if (done) | |
a612e298 | 10068 | { |
fe5b94c5 | 10069 | mock_input = diff + max (t, mock_input); |
4f4a84ec SM |
10070 | /* Adjust the input-decode-map counters. */ |
10071 | indec.end += diff; | |
10072 | indec.start += diff; | |
10073 | ||
a612e298 RS |
10074 | goto replay_sequence; |
10075 | } | |
fe5b94c5 | 10076 | } |
a612e298 | 10077 | |
fe5b94c5 SM |
10078 | /* Look for this sequence in key-translation-map. |
10079 | Scan from keytran.end until we find a bound suffix. */ | |
10080 | while (keytran.end < fkey.start) | |
10081 | { | |
4f4a84ec | 10082 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 | 10083 | int done, diff; |
a612e298 | 10084 | |
4f4a84ec | 10085 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 | 10086 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), |
24d80a06 | 10087 | 1, &diff, prompt); |
fe5b94c5 SM |
10088 | UNGCPRO; |
10089 | if (done) | |
10090 | { | |
10091 | mock_input = diff + max (t, mock_input); | |
4f4a84ec SM |
10092 | /* Adjust the function-key-map and input-decode-map counters. */ |
10093 | indec.end += diff; | |
10094 | indec.start += diff; | |
fe5b94c5 SM |
10095 | fkey.end += diff; |
10096 | fkey.start += diff; | |
6b61353c | 10097 | |
fe5b94c5 SM |
10098 | goto replay_sequence; |
10099 | } | |
10100 | } | |
4e50f26a RS |
10101 | |
10102 | /* If KEY is not defined in any of the keymaps, | |
10103 | and cannot be part of a function key or translation, | |
10104 | and is an upper case letter | |
10105 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 10106 | if (first_binding >= nmaps |
4f4a84ec | 10107 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t |
8c18cbfb | 10108 | && INTEGERP (key) |
c23cad0b | 10109 | && ((CHARACTERP (make_number (XINT (key) & ~CHAR_MODIFIER_MASK)) |
16747e03 | 10110 | && UPPERCASEP (XINT (key) & ~CHAR_MODIFIER_MASK)) |
4e50f26a RS |
10111 | || (XINT (key) & shift_modifier))) |
10112 | { | |
569871d2 | 10113 | Lisp_Object new_key; |
569871d2 | 10114 | |
309b0fc8 RS |
10115 | original_uppercase = key; |
10116 | original_uppercase_position = t - 1; | |
10117 | ||
831f35a2 | 10118 | if (XINT (key) & shift_modifier) |
569871d2 | 10119 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 10120 | else |
16747e03 | 10121 | XSETINT (new_key, (DOWNCASE (XINT (key) & ~CHAR_MODIFIER_MASK) |
a864f6d6 | 10122 | | (XINT (key) & CHAR_MODIFIER_MASK))); |
569871d2 | 10123 | |
3fe8e9a2 RS |
10124 | /* We have to do this unconditionally, regardless of whether |
10125 | the lower-case char is defined in the keymaps, because they | |
10126 | might get translated through function-key-map. */ | |
10127 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 10128 | mock_input = max (t, mock_input); |
025ae953 | 10129 | shift_translated = 1; |
3fe8e9a2 RS |
10130 | |
10131 | goto replay_sequence; | |
4e50f26a | 10132 | } |
ef8fd672 RS |
10133 | /* If KEY is not defined in any of the keymaps, |
10134 | and cannot be part of a function key or translation, | |
10135 | and is a shifted function key, | |
10136 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 10137 | if (first_binding >= nmaps |
21ec2c43 | 10138 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t) |
ef8fd672 | 10139 | { |
21ec2c43 SM |
10140 | Lisp_Object breakdown = parse_modifiers (key); |
10141 | int modifiers | |
10142 | = CONSP (breakdown) ? (XINT (XCAR (XCDR (breakdown)))) : 0; | |
10143 | ||
10144 | if (modifiers & shift_modifier | |
10145 | /* Treat uppercase keys as shifted. */ | |
10146 | || (INTEGERP (key) | |
87df3c32 SM |
10147 | && (KEY_TO_CHAR (key) |
10148 | < XCHAR_TABLE (current_buffer->downcase_table)->size) | |
21ec2c43 | 10149 | && UPPERCASEP (KEY_TO_CHAR (key)))) |
ef8fd672 | 10150 | { |
21ec2c43 SM |
10151 | Lisp_Object new_key |
10152 | = (modifiers & shift_modifier | |
10153 | ? apply_modifiers (modifiers & ~shift_modifier, | |
10154 | XCAR (breakdown)) | |
10155 | : make_number (DOWNCASE (KEY_TO_CHAR (key)) | modifiers)); | |
3fe8e9a2 RS |
10156 | |
10157 | original_uppercase = key; | |
10158 | original_uppercase_position = t - 1; | |
ef8fd672 | 10159 | |
21ec2c43 SM |
10160 | /* We have to do this unconditionally, regardless of whether |
10161 | the lower-case char is defined in the keymaps, because they | |
10162 | might get translated through function-key-map. */ | |
3fe8e9a2 | 10163 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 10164 | mock_input = max (t, mock_input); |
21ec2c43 SM |
10165 | /* Reset fkey (and consequently keytran) to apply |
10166 | function-key-map on the result, so that S-backspace is | |
10167 | correctly mapped to DEL (via backspace). OTOH, | |
10168 | input-decode-map doesn't need to go through it again. */ | |
10169 | fkey.start = fkey.end = 0; | |
10170 | keytran.start = keytran.end = 0; | |
025ae953 | 10171 | shift_translated = 1; |
21ec2c43 | 10172 | |
3fe8e9a2 | 10173 | goto replay_sequence; |
ef8fd672 RS |
10174 | } |
10175 | } | |
284f4730 | 10176 | } |
309b0fc8 | 10177 | if (!dummyflag) |
bc536d84 RS |
10178 | read_key_sequence_cmd = (first_binding < nmaps |
10179 | ? defs[first_binding] | |
10180 | : Qnil); | |
284f4730 | 10181 | |
cd21b839 | 10182 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 10183 | unbind_to (count, Qnil); |
07f76a14 | 10184 | |
3fe8e9a2 RS |
10185 | /* Don't downcase the last character if the caller says don't. |
10186 | Don't downcase it if the result is undefined, either. */ | |
10187 | if ((dont_downcase_last || first_binding >= nmaps) | |
a53fe666 | 10188 | && t > 0 |
3fe8e9a2 | 10189 | && t - 1 == original_uppercase_position) |
025ae953 CY |
10190 | { |
10191 | keybuf[t - 1] = original_uppercase; | |
10192 | shift_translated = 0; | |
10193 | } | |
10194 | ||
10195 | if (shift_translated) | |
10196 | Vthis_command_keys_shift_translated = Qt; | |
309b0fc8 | 10197 | |
07f76a14 JB |
10198 | /* Occasionally we fabricate events, perhaps by expanding something |
10199 | according to function-key-map, or by adding a prefix symbol to a | |
10200 | mouse click in the scroll bar or modeline. In this cases, return | |
10201 | the entire generated key sequence, even if we hit an unbound | |
10202 | prefix or a definition before the end. This means that you will | |
10203 | be able to push back the event properly, and also means that | |
10204 | read-key-sequence will always return a logical unit. | |
10205 | ||
10206 | Better ideas? */ | |
cca310da JB |
10207 | for (; t < mock_input; t++) |
10208 | { | |
f2647d04 DL |
10209 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
10210 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 10211 | echo_char (keybuf[t]); |
cca310da JB |
10212 | add_command_key (keybuf[t]); |
10213 | } | |
07f76a14 | 10214 | |
2dc00208 | 10215 | UNGCPRO; |
284f4730 JB |
10216 | return t; |
10217 | } | |
10218 | ||
d5eecefb | 10219 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
10220 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
10221 | The sequence is sufficient to specify a non-prefix command in the | |
10222 | current local and global maps. | |
10223 | ||
10224 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
10225 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
10226 | as a continuation of the previous key. | |
10227 | ||
10228 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
10229 | convert the last event to lower case. (Normally any upper case event | |
10230 | is converted to lower case if the original event is undefined and the lower | |
10231 | case equivalent is defined.) A non-nil value is appropriate for reading | |
10232 | a key sequence to be defined. | |
10233 | ||
10234 | A C-g typed while in this function is treated like any other character, | |
10235 | and `quit-flag' is not set. | |
10236 | ||
10237 | If the key sequence starts with a mouse click, then the sequence is read | |
10238 | using the keymaps of the buffer of the window clicked in, not the buffer | |
10239 | of the selected window as normal. | |
10240 | ||
10241 | `read-key-sequence' drops unbound button-down events, since you normally | |
10242 | only care about the click or drag events which follow them. If a drag | |
10243 | or multi-click event is unbound, but the corresponding click event would | |
10244 | be bound, `read-key-sequence' turns the event into a click event at the | |
10245 | drag's starting position. This means that you don't have to distinguish | |
10246 | between click and drag, double, or triple events unless you want to. | |
10247 | ||
10248 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
10249 | lines separating windows, and scroll bars with imaginary keys | |
10250 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
10251 | ||
10252 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
10253 | function will process a switch-frame event if the user switches frames | |
10254 | before typing anything. If the user switches frames in the middle of a | |
10255 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
10256 | is nil, then the event will be put off until after the current key sequence. | |
10257 | ||
10258 | `read-key-sequence' checks `function-key-map' for function key | |
10259 | sequences, where they wouldn't conflict with ordinary bindings. See | |
10260 | `function-key-map' for more details. | |
10261 | ||
10262 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
10263 | that this key sequence is being read by something that will | |
10264 | read commands one after another. It should be nil if the caller | |
10265 | will read just one key sequence. */) | |
d5eecefb RS |
10266 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
10267 | command_loop) | |
309b0fc8 | 10268 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10269 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
10270 | { |
10271 | Lisp_Object keybuf[30]; | |
10272 | register int i; | |
03cee6ae | 10273 | struct gcpro gcpro1; |
aed13378 | 10274 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10275 | |
10276 | if (!NILP (prompt)) | |
b7826503 | 10277 | CHECK_STRING (prompt); |
284f4730 JB |
10278 | QUIT; |
10279 | ||
d5eecefb RS |
10280 | specbind (Qinput_method_exit_on_first_char, |
10281 | (NILP (command_loop) ? Qt : Qnil)); | |
10282 | specbind (Qinput_method_use_echo_area, | |
10283 | (NILP (command_loop) ? Qt : Qnil)); | |
10284 | ||
284f4730 JB |
10285 | bzero (keybuf, sizeof keybuf); |
10286 | GCPRO1 (keybuf[0]); | |
10287 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10288 | ||
daa37602 | 10289 | if (NILP (continue_echo)) |
6321824f RS |
10290 | { |
10291 | this_command_key_count = 0; | |
63020c46 | 10292 | this_command_key_count_reset = 0; |
6321824f RS |
10293 | this_single_command_key_start = 0; |
10294 | } | |
c0a58692 | 10295 | |
d148e14d | 10296 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10297 | if (display_hourglass_p) |
10298 | cancel_hourglass (); | |
d0c48478 GM |
10299 | #endif |
10300 | ||
309b0fc8 | 10301 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 10302 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 10303 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 10304 | |
ae18aa3b | 10305 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 10306 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 10307 | for code reading keys in a loop, like an input method. */ |
d148e14d | 10308 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10309 | if (display_hourglass_p) |
10310 | start_hourglass (); | |
ae18aa3b | 10311 | #endif |
d0c48478 GM |
10312 | #endif |
10313 | ||
dcc408a0 RS |
10314 | if (i == -1) |
10315 | { | |
10316 | Vquit_flag = Qt; | |
10317 | QUIT; | |
10318 | } | |
284f4730 | 10319 | UNGCPRO; |
d5eecefb | 10320 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 10321 | } |
e39da3d7 RS |
10322 | |
10323 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 10324 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
10325 | doc: /* Like `read-key-sequence' but always return a vector. */) |
10326 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
10327 | command_loop) | |
e39da3d7 | 10328 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10329 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
10330 | { |
10331 | Lisp_Object keybuf[30]; | |
10332 | register int i; | |
03cee6ae | 10333 | struct gcpro gcpro1; |
aed13378 | 10334 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
10335 | |
10336 | if (!NILP (prompt)) | |
b7826503 | 10337 | CHECK_STRING (prompt); |
e39da3d7 RS |
10338 | QUIT; |
10339 | ||
d5eecefb RS |
10340 | specbind (Qinput_method_exit_on_first_char, |
10341 | (NILP (command_loop) ? Qt : Qnil)); | |
10342 | specbind (Qinput_method_use_echo_area, | |
10343 | (NILP (command_loop) ? Qt : Qnil)); | |
10344 | ||
e39da3d7 RS |
10345 | bzero (keybuf, sizeof keybuf); |
10346 | GCPRO1 (keybuf[0]); | |
10347 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10348 | ||
10349 | if (NILP (continue_echo)) | |
10350 | { | |
10351 | this_command_key_count = 0; | |
63020c46 | 10352 | this_command_key_count_reset = 0; |
e39da3d7 RS |
10353 | this_single_command_key_start = 0; |
10354 | } | |
10355 | ||
d148e14d | 10356 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10357 | if (display_hourglass_p) |
10358 | cancel_hourglass (); | |
d0c48478 GM |
10359 | #endif |
10360 | ||
e39da3d7 RS |
10361 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
10362 | prompt, ! NILP (dont_downcase_last), | |
10363 | ! NILP (can_return_switch_frame), 0); | |
10364 | ||
d148e14d | 10365 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10366 | if (display_hourglass_p) |
10367 | start_hourglass (); | |
d0c48478 GM |
10368 | #endif |
10369 | ||
e39da3d7 RS |
10370 | if (i == -1) |
10371 | { | |
10372 | Vquit_flag = Qt; | |
10373 | QUIT; | |
10374 | } | |
10375 | UNGCPRO; | |
d5eecefb | 10376 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 10377 | } |
284f4730 | 10378 | \f |
158f7532 | 10379 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
10380 | doc: /* Execute CMD as an editor command. |
10381 | CMD must be a symbol that satisfies the `commandp' predicate. | |
10382 | Optional second arg RECORD-FLAG non-nil | |
10383 | means unconditionally put this command in `command-history'. | |
10384 | Otherwise, that is done only if an arg is read using the minibuffer. | |
10385 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
10386 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
10387 | The argument SPECIAL, if non-nil, means that this command is executing | |
10388 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
10389 | (cmd, record_flag, keys, special) |
10390 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
10391 | { |
10392 | register Lisp_Object final; | |
10393 | register Lisp_Object tem; | |
10394 | Lisp_Object prefixarg; | |
284f4730 JB |
10395 | extern int debug_on_next_call; |
10396 | ||
284f4730 JB |
10397 | debug_on_next_call = 0; |
10398 | ||
158f7532 RS |
10399 | if (NILP (special)) |
10400 | { | |
10401 | prefixarg = current_kboard->Vprefix_arg; | |
10402 | Vcurrent_prefix_arg = prefixarg; | |
10403 | current_kboard->Vprefix_arg = Qnil; | |
10404 | } | |
10405 | else | |
10406 | prefixarg = Qnil; | |
10407 | ||
8c18cbfb | 10408 | if (SYMBOLP (cmd)) |
284f4730 JB |
10409 | { |
10410 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 10411 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 10412 | { |
971e4c98 | 10413 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 10414 | if (!NILP (tem)) |
971e4c98 | 10415 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 10416 | } |
284f4730 JB |
10417 | } |
10418 | ||
01e26217 | 10419 | while (1) |
284f4730 | 10420 | { |
a7f96a35 | 10421 | final = Findirect_function (cmd, Qnil); |
284f4730 JB |
10422 | |
10423 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
10424 | { |
10425 | struct gcpro gcpro1, gcpro2; | |
10426 | ||
10427 | GCPRO2 (cmd, prefixarg); | |
10428 | do_autoload (final, cmd); | |
10429 | UNGCPRO; | |
10430 | } | |
284f4730 JB |
10431 | else |
10432 | break; | |
10433 | } | |
10434 | ||
8c18cbfb | 10435 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
10436 | { |
10437 | /* If requested, place the macro in the command history. For | |
10438 | other sorts of commands, call-interactively takes care of | |
10439 | this. */ | |
e57d8fd8 | 10440 | if (!NILP (record_flag)) |
f4385381 RS |
10441 | { |
10442 | Vcommand_history | |
10443 | = Fcons (Fcons (Qexecute_kbd_macro, | |
10444 | Fcons (final, Fcons (prefixarg, Qnil))), | |
10445 | Vcommand_history); | |
10446 | ||
10447 | /* Don't keep command history around forever. */ | |
10448 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
10449 | { | |
10450 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
10451 | if (CONSP (tem)) | |
f3fbd155 | 10452 | XSETCDR (tem, Qnil); |
f4385381 RS |
10453 | } |
10454 | } | |
284f4730 | 10455 | |
caa06051 | 10456 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 10457 | } |
f4385381 | 10458 | |
8c18cbfb | 10459 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
6d0867e5 SM |
10460 | /* Don't call Fcall_interactively directly because we want to make |
10461 | sure the backtrace has an entry for `call-interactively'. | |
10462 | For the same reason, pass `cmd' rather than `final'. */ | |
10463 | return call3 (Qcall_interactively, cmd, record_flag, keys); | |
284f4730 | 10464 | |
284f4730 JB |
10465 | return Qnil; |
10466 | } | |
c970a760 GM |
10467 | |
10468 | ||
284f4730 | 10469 | \f |
284f4730 | 10470 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 | 10471 | 1, 1, "P", |
dfb4bff5 EZ |
10472 | doc: /* Read function name, then read its arguments and call it. |
10473 | ||
10474 | To pass a numeric argument to the command you are invoking with, specify | |
10475 | the numeric argument to this command. | |
10476 | ||
10477 | Noninteractively, the argument PREFIXARG is the prefix argument to | |
10478 | give to the command you invoke, if it asks for an argument. */) | |
4707d2d0 | 10479 | (prefixarg) |
284f4730 JB |
10480 | Lisp_Object prefixarg; |
10481 | { | |
10482 | Lisp_Object function; | |
10483 | char buf[40]; | |
2e1a49ad SM |
10484 | int saved_last_point_position; |
10485 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 10486 | Lisp_Object bindings, value; |
2e1a49ad | 10487 | struct gcpro gcpro1, gcpro2, gcpro3; |
d148e14d | 10488 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10489 | /* The call to Fcompleting_read wil start and cancel the hourglass, |
10490 | but if the hourglass was already scheduled, this means that no | |
10491 | hourglass will be shown for the actual M-x command itself. | |
10492 | So we restart it if it is already scheduled. Note that checking | |
10493 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
10494 | just scheduled to be shown. */ | |
10495 | int hstarted = hourglass_started (); | |
10496 | #endif | |
284f4730 | 10497 | |
b0f2a7bf KH |
10498 | saved_keys = Fvector (this_command_key_count, |
10499 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
10500 | saved_last_point_position_buffer = last_point_position_buffer; |
10501 | saved_last_point_position = last_point_position; | |
284f4730 | 10502 | buf[0] = 0; |
2e1a49ad | 10503 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
10504 | |
10505 | if (EQ (prefixarg, Qminus)) | |
10506 | strcpy (buf, "- "); | |
7539e11f | 10507 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 10508 | strcpy (buf, "C-u "); |
7539e11f | 10509 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
cea5d0d4 | 10510 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
8c18cbfb | 10511 | else if (INTEGERP (prefixarg)) |
cea5d0d4 | 10512 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
284f4730 JB |
10513 | |
10514 | /* This isn't strictly correct if execute-extended-command | |
10515 | is bound to anything else. Perhaps it should use | |
10516 | this_command_keys? */ | |
10517 | strcat (buf, "M-x "); | |
10518 | ||
10519 | /* Prompt with buf, and then read a string, completing from and | |
10520 | restricting to the set of all defined commands. Don't provide | |
51763820 | 10521 | any initial input. Save the command read on the extended-command |
03b4122a | 10522 | history list. */ |
284f4730 JB |
10523 | function = Fcompleting_read (build_string (buf), |
10524 | Vobarray, Qcommandp, | |
4328577a KH |
10525 | Qt, Qnil, Qextended_command_history, Qnil, |
10526 | Qnil); | |
284f4730 | 10527 | |
d148e14d | 10528 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10529 | if (hstarted) start_hourglass (); |
10530 | #endif | |
10531 | ||
d5db4077 | 10532 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
10533 | error ("No command name given"); |
10534 | ||
1113d9db JB |
10535 | /* Set this_command_keys to the concatenation of saved_keys and |
10536 | function, followed by a RET. */ | |
284f4730 | 10537 | { |
b0f2a7bf | 10538 | Lisp_Object *keys; |
284f4730 | 10539 | int i; |
284f4730 | 10540 | |
1113d9db | 10541 | this_command_key_count = 0; |
63020c46 | 10542 | this_command_key_count_reset = 0; |
6321824f | 10543 | this_single_command_key_start = 0; |
1113d9db | 10544 | |
b0f2a7bf KH |
10545 | keys = XVECTOR (saved_keys)->contents; |
10546 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
10547 | add_command_key (keys[i]); | |
1113d9db | 10548 | |
1b049b51 | 10549 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 10550 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 10551 | |
301738ed | 10552 | add_command_key (make_number ('\015')); |
284f4730 JB |
10553 | } |
10554 | ||
2e1a49ad SM |
10555 | last_point_position = saved_last_point_position; |
10556 | last_point_position_buffer = saved_last_point_position_buffer; | |
10557 | ||
284f4730 JB |
10558 | UNGCPRO; |
10559 | ||
0a7f1fc0 | 10560 | function = Fintern (function, Qnil); |
d8bcf58e | 10561 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
10562 | Vthis_command = function; |
10563 | real_this_command = function; | |
284f4730 | 10564 | |
6526ab49 RS |
10565 | /* If enabled, show which key runs this command. */ |
10566 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 10567 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 10568 | && SYMBOLP (function)) |
5434fce6 | 10569 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 10570 | Qt, Qnil, Qnil); |
5434fce6 RS |
10571 | else |
10572 | bindings = Qnil; | |
6526ab49 | 10573 | |
5434fce6 | 10574 | value = Qnil; |
6d0867e5 | 10575 | GCPRO3 (bindings, value, function); |
5434fce6 | 10576 | value = Fcommand_execute (function, Qt, Qnil, Qnil); |
6526ab49 | 10577 | |
5434fce6 | 10578 | /* If the command has a key binding, print it now. */ |
3ababa60 | 10579 | if (!NILP (bindings) |
ee112567 KH |
10580 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
10581 | Qmouse_movement))) | |
5434fce6 RS |
10582 | { |
10583 | /* But first wait, and skip the message if there is input. */ | |
7ba07a1a CY |
10584 | Lisp_Object waited; |
10585 | ||
666dc232 KS |
10586 | /* If this command displayed something in the echo area; |
10587 | wait a few seconds, then display our suggestion message. */ | |
10588 | if (NILP (echo_area_buffer[0])) | |
10589 | waited = sit_for (make_number (0), 0, 2); | |
10590 | else if (NUMBERP (Vsuggest_key_bindings)) | |
2bcac766 | 10591 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
426939cc | 10592 | else |
666dc232 | 10593 | waited = sit_for (make_number (2), 0, 2); |
426939cc | 10594 | |
7ba07a1a | 10595 | if (!NILP (waited) && ! CONSP (Vunread_command_events)) |
6526ab49 | 10596 | { |
5434fce6 RS |
10597 | Lisp_Object binding; |
10598 | char *newmessage; | |
985f9f66 | 10599 | int message_p = push_message (); |
331379bf | 10600 | int count = SPECPDL_INDEX (); |
5434fce6 | 10601 | |
65efd7da | 10602 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 10603 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
10604 | |
10605 | newmessage | |
d5db4077 KR |
10606 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
10607 | + SBYTES (binding) | |
5434fce6 | 10608 | + 100); |
3ababa60 | 10609 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
10610 | SDATA (SYMBOL_NAME (function)), |
10611 | SDATA (binding)); | |
301738ed RS |
10612 | message2_nolog (newmessage, |
10613 | strlen (newmessage), | |
10614 | STRING_MULTIBYTE (binding)); | |
7ba07a1a | 10615 | if (NUMBERP (Vsuggest_key_bindings)) |
666dc232 | 10616 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
7ba07a1a | 10617 | else |
666dc232 | 10618 | waited = sit_for (make_number (2), 0, 2); |
7ba07a1a CY |
10619 | |
10620 | if (!NILP (waited) && message_p) | |
985f9f66 GM |
10621 | restore_message (); |
10622 | ||
c970a760 | 10623 | unbind_to (count, Qnil); |
6526ab49 RS |
10624 | } |
10625 | } | |
10626 | ||
5434fce6 | 10627 | RETURN_UNGCPRO (value); |
284f4730 | 10628 | } |
6526ab49 | 10629 | |
284f4730 | 10630 | \f |
d9d4c147 | 10631 | /* Return nonzero if input events are pending. */ |
284f4730 | 10632 | |
dfcf069d | 10633 | int |
284f4730 JB |
10634 | detect_input_pending () |
10635 | { | |
10636 | if (!input_pending) | |
d9d4c147 KH |
10637 | get_input_pending (&input_pending, 0); |
10638 | ||
10639 | return input_pending; | |
10640 | } | |
10641 | ||
a2d5fca0 JD |
10642 | /* Return nonzero if input events other than mouse movements are |
10643 | pending. */ | |
10644 | ||
10645 | int | |
10646 | detect_input_pending_ignore_squeezables () | |
10647 | { | |
10648 | if (!input_pending) | |
10649 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
10650 | ||
10651 | return input_pending; | |
10652 | } | |
10653 | ||
b1878f45 | 10654 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 10655 | |
dfcf069d | 10656 | int |
87dd9b9b RS |
10657 | detect_input_pending_run_timers (do_display) |
10658 | int do_display; | |
d9d4c147 | 10659 | { |
87dd9b9b RS |
10660 | int old_timers_run = timers_run; |
10661 | ||
d9d4c147 | 10662 | if (!input_pending) |
a2d5fca0 | 10663 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 10664 | |
87dd9b9b | 10665 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 10666 | { |
3007ebfb | 10667 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
10668 | /* The following fixes a bug when using lazy-lock with |
10669 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
10670 | from an idle timer function. The symptom of the bug is that | |
10671 | the cursor sometimes doesn't become visible until the next X | |
10672 | event is processed. --gerd. */ | |
fa971ac3 KL |
10673 | { |
10674 | Lisp_Object tail, frame; | |
10675 | FOR_EACH_FRAME (tail, frame) | |
10676 | if (FRAME_RIF (XFRAME (frame))) | |
10677 | FRAME_RIF (XFRAME (frame))->flush_display (XFRAME (frame)); | |
10678 | } | |
7ee32cda | 10679 | } |
87dd9b9b | 10680 | |
284f4730 JB |
10681 | return input_pending; |
10682 | } | |
10683 | ||
ffd56f97 JB |
10684 | /* This is called in some cases before a possible quit. |
10685 | It cases the next call to detect_input_pending to recompute input_pending. | |
10686 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
10687 | |
10688 | void | |
ffd56f97 JB |
10689 | clear_input_pending () |
10690 | { | |
10691 | input_pending = 0; | |
10692 | } | |
10693 | ||
b1878f45 | 10694 | /* Return nonzero if there are pending requeued events. |
d64b707c | 10695 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 10696 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
10697 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
10698 | to do in that case. It isn't trivial. */ | |
10699 | ||
dfcf069d | 10700 | int |
b1878f45 RS |
10701 | requeued_events_pending_p () |
10702 | { | |
10703 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
10704 | } | |
10705 | ||
10706 | ||
284f4730 | 10707 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
10708 | doc: /* Return t if command input is currently available with no wait. |
10709 | Actually, the value is nil only if we can be sure that no input is available; | |
10710 | if there is a doubt, the value is t. */) | |
4707d2d0 | 10711 | () |
284f4730 | 10712 | { |
182f67de KS |
10713 | if (!NILP (Vunread_command_events) || unread_command_char != -1 |
10714 | || !NILP (Vunread_post_input_method_events) | |
10715 | || !NILP (Vunread_input_method_events)) | |
284f4730 JB |
10716 | return (Qt); |
10717 | ||
a2d5fca0 JD |
10718 | get_input_pending (&input_pending, |
10719 | READABLE_EVENTS_DO_TIMERS_NOW | |
10720 | | READABLE_EVENTS_FILTER_EVENTS); | |
d9d4c147 | 10721 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
10722 | } |
10723 | ||
10724 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
0721f230 | 10725 | doc: /* Return vector of last 300 events, not counting those from keyboard macros. */) |
4707d2d0 | 10726 | () |
284f4730 | 10727 | { |
5160df46 | 10728 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
10729 | Lisp_Object val; |
10730 | ||
10731 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 10732 | return Fvector (total_keys, keys); |
284f4730 JB |
10733 | else |
10734 | { | |
5160df46 JB |
10735 | val = Fvector (NUM_RECENT_KEYS, keys); |
10736 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
10737 | XVECTOR (val)->contents, |
10738 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 10739 | bcopy (keys, |
284f4730 JB |
10740 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
10741 | recent_keys_index * sizeof (Lisp_Object)); | |
10742 | return val; | |
10743 | } | |
10744 | } | |
10745 | ||
10746 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 10747 | doc: /* Return the key sequence that invoked this command. |
92501652 | 10748 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 10749 | the last key sequence that has been read. |
65849ada EZ |
10750 | The value is a string or a vector. |
10751 | ||
10752 | See also `this-command-keys-vector'. */) | |
4707d2d0 | 10753 | () |
284f4730 | 10754 | { |
86e5706b RS |
10755 | return make_event_array (this_command_key_count, |
10756 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
10757 | } |
10758 | ||
e39da3d7 | 10759 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
10760 | doc: /* Return the key sequence that invoked this command, as a vector. |
10761 | However, if the command has called `read-key-sequence', it returns | |
65849ada EZ |
10762 | the last key sequence that has been read. |
10763 | ||
10764 | See also `this-command-keys'. */) | |
4707d2d0 | 10765 | () |
e39da3d7 RS |
10766 | { |
10767 | return Fvector (this_command_key_count, | |
10768 | XVECTOR (this_command_keys)->contents); | |
10769 | } | |
10770 | ||
6321824f RS |
10771 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10772 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10773 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10774 | More generally, it returns the last key sequence read, either by |
10775 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10776 | Unlike `this-command-keys', this function's value |
10777 | does not include prefix arguments. | |
10778 | The value is always a vector. */) | |
10779 | () | |
6321824f | 10780 | { |
e39da3d7 RS |
10781 | return Fvector (this_command_key_count |
10782 | - this_single_command_key_start, | |
10783 | (XVECTOR (this_command_keys)->contents | |
10784 | + this_single_command_key_start)); | |
6321824f RS |
10785 | } |
10786 | ||
7d18f9ae RS |
10787 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10788 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10789 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10790 | More generally, it returns the last key sequence read, either by |
10791 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10792 | Unlike `this-single-command-keys', this function's value |
10793 | shows the events before all translations (except for input methods). | |
10794 | The value is always a vector. */) | |
10795 | () | |
7d18f9ae RS |
10796 | { |
10797 | return Fvector (raw_keybuf_count, | |
10798 | (XVECTOR (raw_keybuf)->contents)); | |
10799 | } | |
10800 | ||
71918b75 | 10801 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10802 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10803 | doc: /* Make the unread events replace the last command and echo. |
10804 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10805 | |
10806 | `universal-argument-other-key' rereads the event just typed. | |
10807 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10808 | The translated event has to replace the real events, |
10809 | both in the value of (this-command-keys) and in echoing. | |
10810 | To achieve this, `universal-argument-other-key' calls | |
10811 | `reset-this-command-lengths', which discards the record of reading | |
10812 | these events the first time. */) | |
4707d2d0 | 10813 | () |
71918b75 | 10814 | { |
22b94eeb RS |
10815 | this_command_key_count = before_command_key_count; |
10816 | if (this_command_key_count < this_single_command_key_start) | |
10817 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10818 | |
22b94eeb RS |
10819 | echo_truncate (before_command_echo_length); |
10820 | ||
63020c46 RS |
10821 | /* Cause whatever we put into unread-command-events |
10822 | to echo as if it were being freshly read from the keyboard. */ | |
10823 | this_command_key_count_reset = 1; | |
10824 | ||
6e5742a0 | 10825 | return Qnil; |
71918b75 RS |
10826 | } |
10827 | ||
82e6e5af | 10828 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10829 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10830 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10831 | Also clear the record of the last 100 events, unless optional arg |
10832 | KEEP-RECORD is non-nil. */) | |
10833 | (keep_record) | |
10834 | Lisp_Object keep_record; | |
82e6e5af | 10835 | { |
fb0dde6c | 10836 | int i; |
c60ee5e7 | 10837 | |
82e6e5af | 10838 | this_command_key_count = 0; |
63020c46 | 10839 | this_command_key_count_reset = 0; |
fb0dde6c | 10840 | |
ab1959fc KS |
10841 | if (NILP (keep_record)) |
10842 | { | |
10843 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10844 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10845 | total_keys = 0; | |
10846 | recent_keys_index = 0; | |
10847 | } | |
82e6e5af RS |
10848 | return Qnil; |
10849 | } | |
10850 | ||
284f4730 | 10851 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
10852 | doc: /* Return the current depth in recursive edits. */) |
10853 | () | |
284f4730 JB |
10854 | { |
10855 | Lisp_Object temp; | |
bb9e9bed | 10856 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10857 | return temp; |
10858 | } | |
10859 | ||
10860 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10861 | "FOpen dribble file: ", |
10862 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10863 | If FILE is nil, close any open dribble file. */) | |
10864 | (file) | |
284f4730 JB |
10865 | Lisp_Object file; |
10866 | { | |
6cb52def | 10867 | if (dribble) |
284f4730 | 10868 | { |
34f5c10f | 10869 | BLOCK_INPUT; |
6cb52def | 10870 | fclose (dribble); |
34f5c10f | 10871 | UNBLOCK_INPUT; |
6cb52def | 10872 | dribble = 0; |
284f4730 | 10873 | } |
6cb52def | 10874 | if (!NILP (file)) |
284f4730 JB |
10875 | { |
10876 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10877 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10878 | if (dribble == 0) |
10879 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10880 | } |
10881 | return Qnil; | |
10882 | } | |
10883 | ||
10884 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10885 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10886 | Also end any kbd macro being defined. */) |
4707d2d0 | 10887 | () |
284f4730 | 10888 | { |
2b17d5ed KS |
10889 | if (!NILP (current_kboard->defining_kbd_macro)) |
10890 | { | |
10891 | /* Discard the last command from the macro. */ | |
10892 | Fcancel_kbd_macro_events (); | |
10893 | end_kbd_macro (); | |
10894 | } | |
10895 | ||
284f4730 JB |
10896 | update_mode_lines++; |
10897 | ||
24597608 | 10898 | Vunread_command_events = Qnil; |
86e5706b | 10899 | unread_command_char = -1; |
284f4730 JB |
10900 | |
10901 | discard_tty_input (); | |
10902 | ||
7ee32cda | 10903 | kbd_fetch_ptr = kbd_store_ptr; |
284f4730 JB |
10904 | input_pending = 0; |
10905 | ||
10906 | return Qnil; | |
10907 | } | |
10908 | \f | |
10909 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10910 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10911 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10912 | control, run a subshell instead. | |
10913 | ||
10914 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10915 | to be read as terminal input by Emacs's parent, after suspension. | |
10916 | ||
10917 | Before suspending, run the normal hook `suspend-hook'. | |
10918 | After resumption run the normal hook `suspend-resume-hook'. | |
10919 | ||
10920 | Some operating systems cannot stop the Emacs process and resume it later. | |
10921 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10922 | (stuffstring) | |
284f4730 JB |
10923 | Lisp_Object stuffstring; |
10924 | { | |
aed13378 | 10925 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10926 | int old_height, old_width; |
10927 | int width, height; | |
03cee6ae | 10928 | struct gcpro gcpro1; |
284f4730 | 10929 | |
9628b887 | 10930 | if (tty_list && tty_list->next) |
4a933ef8 | 10931 | error ("There are other tty frames open; close them before suspending Emacs"); |
3b7fbceb | 10932 | |
284f4730 | 10933 | if (!NILP (stuffstring)) |
b7826503 | 10934 | CHECK_STRING (stuffstring); |
284f4730 | 10935 | |
1e95ed28 JB |
10936 | /* Run the functions in suspend-hook. */ |
10937 | if (!NILP (Vrun_hooks)) | |
10938 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10939 | |
b7d2ebbf | 10940 | GCPRO1 (stuffstring); |
0b0d3e0b | 10941 | get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height); |
28d440ab | 10942 | reset_all_sys_modes (); |
284f4730 JB |
10943 | /* sys_suspend can get an error if it tries to fork a subshell |
10944 | and the system resources aren't available for that. */ | |
017bbc62 | 10945 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_all_sys_modes, |
d52a7a92 | 10946 | Qnil); |
284f4730 | 10947 | stuff_buffered_input (stuffstring); |
8026024c KH |
10948 | if (cannot_suspend) |
10949 | sys_subshell (); | |
10950 | else | |
10951 | sys_suspend (); | |
284f4730 JB |
10952 | unbind_to (count, Qnil); |
10953 | ||
10954 | /* Check if terminal/window size has changed. | |
10955 | Note that this is not useful when we are running directly | |
10956 | with a window system; but suspend should be disabled in that case. */ | |
0b0d3e0b | 10957 | get_tty_size (fileno (CURTTY ()->input), &width, &height); |
284f4730 | 10958 | if (width != old_width || height != old_height) |
788f89eb | 10959 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10960 | |
1e95ed28 | 10961 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10962 | if (!NILP (Vrun_hooks)) |
10963 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10964 | |
284f4730 JB |
10965 | UNGCPRO; |
10966 | return Qnil; | |
10967 | } | |
10968 | ||
10969 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10970 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10971 | |
07a59269 | 10972 | void |
284f4730 JB |
10973 | stuff_buffered_input (stuffstring) |
10974 | Lisp_Object stuffstring; | |
10975 | { | |
0c1c1b93 | 10976 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10977 | register unsigned char *p; |
612b78ef | 10978 | |
8c18cbfb | 10979 | if (STRINGP (stuffstring)) |
284f4730 JB |
10980 | { |
10981 | register int count; | |
10982 | ||
d5db4077 KR |
10983 | p = SDATA (stuffstring); |
10984 | count = SBYTES (stuffstring); | |
284f4730 JB |
10985 | while (count-- > 0) |
10986 | stuff_char (*p++); | |
10987 | stuff_char ('\n'); | |
10988 | } | |
c60ee5e7 | 10989 | |
284f4730 | 10990 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10991 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10992 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10993 | |
0c1c1b93 RS |
10994 | rms: we should stuff everything back into the kboard |
10995 | it came from. */ | |
beecf6a1 | 10996 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10997 | { |
c60ee5e7 | 10998 | |
beecf6a1 KH |
10999 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
11000 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 11001 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 11002 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 11003 | |
6b61353c | 11004 | clear_event (kbd_fetch_ptr); |
284f4730 | 11005 | } |
c60ee5e7 | 11006 | |
284f4730 | 11007 | input_pending = 0; |
0c1c1b93 | 11008 | #endif /* SIGTSTP */ |
284f4730 JB |
11009 | } |
11010 | \f | |
dfcf069d | 11011 | void |
ffd56f97 JB |
11012 | set_waiting_for_input (time_to_clear) |
11013 | EMACS_TIME *time_to_clear; | |
284f4730 | 11014 | { |
ffd56f97 | 11015 | input_available_clear_time = time_to_clear; |
284f4730 | 11016 | |
114a8b8c | 11017 | /* Tell handle_interrupt to throw back to read_char, */ |
284f4730 JB |
11018 | waiting_for_input = 1; |
11019 | ||
114a8b8c | 11020 | /* If handle_interrupt was called before and buffered a C-g, |
284f4730 JB |
11021 | make it run again now, to avoid timing error. */ |
11022 | if (!NILP (Vquit_flag)) | |
11023 | quit_throw_to_read_char (); | |
284f4730 JB |
11024 | } |
11025 | ||
07a59269 | 11026 | void |
284f4730 JB |
11027 | clear_waiting_for_input () |
11028 | { | |
114a8b8c | 11029 | /* Tell handle_interrupt not to throw back to read_char, */ |
284f4730 | 11030 | waiting_for_input = 0; |
ffd56f97 | 11031 | input_available_clear_time = 0; |
284f4730 JB |
11032 | } |
11033 | ||
da8e1115 | 11034 | /* The SIGINT handler. |
284f4730 | 11035 | |
e72cf5ee KL |
11036 | If we have a frame on the controlling tty, we assume that the |
11037 | SIGINT was generated by C-g, so we call handle_interrupt. | |
11038 | Otherwise, the handler kills Emacs. */ | |
284f4730 | 11039 | |
14e40288 | 11040 | static SIGTYPE |
91c049d4 RS |
11041 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
11042 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 11043 | { |
284f4730 JB |
11044 | /* Must preserve main program's value of errno. */ |
11045 | int old_errno = errno; | |
6ed8eeff | 11046 | struct terminal *terminal; |
284f4730 | 11047 | |
5970a8cb | 11048 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7b00d185 KL |
11049 | /* USG systems forget handlers when they are used; |
11050 | must reestablish each time */ | |
11051 | signal (SIGINT, interrupt_signal); | |
11052 | signal (SIGQUIT, interrupt_signal); | |
284f4730 JB |
11053 | #endif /* USG */ |
11054 | ||
333f1b6f | 11055 | SIGNAL_THREAD_CHECK (signalnum); |
e72cf5ee | 11056 | |
6ed8eeff | 11057 | /* See if we have an active terminal on our controlling tty. */ |
fdf5ebde | 11058 | terminal = get_named_tty ("/dev/tty"); |
6ed8eeff | 11059 | if (!terminal) |
3224dac1 | 11060 | { |
4ca927b4 KL |
11061 | /* If there are no frames there, let's pretend that we are a |
11062 | well-behaving UN*X program and quit. */ | |
b3e6f69c | 11063 | Fkill_emacs (Qnil); |
3224dac1 | 11064 | } |
4ca927b4 KL |
11065 | else |
11066 | { | |
11067 | /* Otherwise, the SIGINT was probably generated by C-g. */ | |
3b7fbceb | 11068 | |
4ca927b4 KL |
11069 | /* Set internal_last_event_frame to the top frame of the |
11070 | controlling tty, if we have a frame there. We disable the | |
11071 | interrupt key on secondary ttys, so the SIGINT must have come | |
11072 | from the controlling tty. */ | |
6ed8eeff | 11073 | internal_last_event_frame = terminal->display_info.tty->top_frame; |
4ca927b4 KL |
11074 | |
11075 | handle_interrupt (); | |
4ca927b4 | 11076 | } |
114a8b8c KL |
11077 | |
11078 | errno = old_errno; | |
11079 | } | |
11080 | ||
da8e1115 | 11081 | /* This routine is called at interrupt level in response to C-g. |
3b7fbceb | 11082 | |
da8e1115 KL |
11083 | It is called from the SIGINT handler or kbd_buffer_store_event. |
11084 | ||
11085 | If `waiting_for_input' is non zero, then unless `echoing' is | |
11086 | nonzero, immediately throw back to read_char. | |
11087 | ||
11088 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes | |
11089 | eval to throw, when it gets a chance. If quit-flag is already | |
11090 | non-nil, it stops the job right away. */ | |
114a8b8c | 11091 | |
114a8b8c KL |
11092 | static void |
11093 | handle_interrupt () | |
11094 | { | |
3b7fbceb | 11095 | char c; |
114a8b8c | 11096 | |
284f4730 JB |
11097 | cancel_echoing (); |
11098 | ||
3224dac1 | 11099 | /* XXX This code needs to be revised for multi-tty support. */ |
d44004c0 | 11100 | if (!NILP (Vquit_flag) && get_named_tty ("/dev/tty")) |
284f4730 | 11101 | { |
31e4e97b EZ |
11102 | /* If SIGINT isn't blocked, don't let us be interrupted by |
11103 | another SIGINT, it might be harmful due to non-reentrancy | |
11104 | in I/O functions. */ | |
11105 | sigblock (sigmask (SIGINT)); | |
11106 | ||
284f4730 | 11107 | fflush (stdout); |
28d440ab | 11108 | reset_all_sys_modes (); |
31e4e97b | 11109 | |
284f4730 JB |
11110 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
11111 | /* | |
11112 | * On systems which can suspend the current process and return to the original | |
11113 | * shell, this command causes the user to end up back at the shell. | |
11114 | * The "Auto-save" and "Abort" questions are not asked until | |
11115 | * the user elects to return to emacs, at which point he can save the current | |
11116 | * job and either dump core or continue. | |
11117 | */ | |
11118 | sys_suspend (); | |
11119 | #else | |
284f4730 JB |
11120 | /* Perhaps should really fork an inferior shell? |
11121 | But that would not provide any way to get back | |
11122 | to the original shell, ever. */ | |
11123 | printf ("No support for stopping a process on this operating system;\n"); | |
11124 | printf ("you can continue or abort.\n"); | |
284f4730 | 11125 | #endif /* not SIGTSTP */ |
80e4aa30 RS |
11126 | #ifdef MSDOS |
11127 | /* We must remain inside the screen area when the internal terminal | |
11128 | is used. Note that [Enter] is not echoed by dos. */ | |
cb22456d | 11129 | cursor_to (SELECTED_FRAME (), 0, 0); |
80e4aa30 | 11130 | #endif |
118d6ca9 RS |
11131 | /* It doesn't work to autosave while GC is in progress; |
11132 | the code used for auto-saving doesn't cope with the mark bit. */ | |
11133 | if (!gc_in_progress) | |
9fd7d808 | 11134 | { |
118d6ca9 RS |
11135 | printf ("Auto-save? (y or n) "); |
11136 | fflush (stdout); | |
11137 | if (((c = getchar ()) & ~040) == 'Y') | |
11138 | { | |
11139 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 11140 | #ifdef MSDOS |
118d6ca9 | 11141 | printf ("\r\nAuto-save done"); |
80e4aa30 | 11142 | #else /* not MSDOS */ |
118d6ca9 | 11143 | printf ("Auto-save done\n"); |
80e4aa30 | 11144 | #endif /* not MSDOS */ |
118d6ca9 RS |
11145 | } |
11146 | while (c != '\n') c = getchar (); | |
9fd7d808 | 11147 | } |
c60ee5e7 | 11148 | else |
118d6ca9 RS |
11149 | { |
11150 | /* During GC, it must be safe to reenable quitting again. */ | |
11151 | Vinhibit_quit = Qnil; | |
11152 | #ifdef MSDOS | |
11153 | printf ("\r\n"); | |
11154 | #endif /* not MSDOS */ | |
11155 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
11156 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
11157 | fflush (stdout); | |
11158 | } | |
11159 | ||
80e4aa30 RS |
11160 | #ifdef MSDOS |
11161 | printf ("\r\nAbort? (y or n) "); | |
11162 | #else /* not MSDOS */ | |
284f4730 | 11163 | printf ("Abort (and dump core)? (y or n) "); |
80e4aa30 | 11164 | #endif /* not MSDOS */ |
284f4730 JB |
11165 | fflush (stdout); |
11166 | if (((c = getchar ()) & ~040) == 'Y') | |
11167 | abort (); | |
11168 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
11169 | #ifdef MSDOS |
11170 | printf ("\r\nContinuing...\r\n"); | |
11171 | #else /* not MSDOS */ | |
284f4730 | 11172 | printf ("Continuing...\n"); |
80e4aa30 | 11173 | #endif /* not MSDOS */ |
284f4730 | 11174 | fflush (stdout); |
28d440ab | 11175 | init_all_sys_modes (); |
31e4e97b | 11176 | sigfree (); |
284f4730 JB |
11177 | } |
11178 | else | |
11179 | { | |
11180 | /* If executing a function that wants to be interrupted out of | |
11181 | and the user has not deferred quitting by binding `inhibit-quit' | |
11182 | then quit right away. */ | |
11183 | if (immediate_quit && NILP (Vinhibit_quit)) | |
11184 | { | |
e39da3d7 RS |
11185 | struct gl_state_s saved; |
11186 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
11187 | ||
284f4730 JB |
11188 | immediate_quit = 0; |
11189 | sigfree (); | |
e39da3d7 RS |
11190 | saved = gl_state; |
11191 | GCPRO4 (saved.object, saved.global_code, | |
11192 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 11193 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
11194 | gl_state = saved; |
11195 | UNGCPRO; | |
284f4730 JB |
11196 | } |
11197 | else | |
11198 | /* Else request quit when it's safe */ | |
11199 | Vquit_flag = Qt; | |
11200 | } | |
11201 | ||
8ad093db AR |
11202 | /* TODO: The longjmp in this call throws the NS event loop integration off, |
11203 | and it seems to do fine without this. Probably some attention | |
11204 | needs to be paid to the setting of waiting_for_input in | |
11205 | wait_reading_process_output() under HAVE_NS because of the call | |
11206 | to ns_select there (needed because otherwise events aren't picked up | |
11207 | outside of polling since we don't get SIGIO like X and we don't have a | |
11208 | separate event loop thread like W32. */ | |
11209 | #ifndef HAVE_NS | |
284f4730 | 11210 | if (waiting_for_input && !echoing) |
4ca927b4 | 11211 | quit_throw_to_read_char (); |
8ad093db | 11212 | #endif |
284f4730 JB |
11213 | } |
11214 | ||
11215 | /* Handle a C-g by making read_char return C-g. */ | |
11216 | ||
07a59269 | 11217 | void |
284f4730 JB |
11218 | quit_throw_to_read_char () |
11219 | { | |
284f4730 JB |
11220 | sigfree (); |
11221 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 11222 | clear_waiting_for_input (); |
284f4730 JB |
11223 | input_pending = 0; |
11224 | ||
24597608 | 11225 | Vunread_command_events = Qnil; |
86e5706b | 11226 | unread_command_char = -1; |
284f4730 | 11227 | |
087feab3 RS |
11228 | #if 0 /* Currently, sit_for is called from read_char without turning |
11229 | off polling. And that can call set_waiting_for_input. | |
11230 | It seems to be harmless. */ | |
e6b01c14 JB |
11231 | #ifdef POLL_FOR_INPUT |
11232 | /* May be > 1 if in recursive minibuffer. */ | |
11233 | if (poll_suppress_count == 0) | |
11234 | abort (); | |
11235 | #endif | |
087feab3 | 11236 | #endif |
4c52b668 | 11237 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 11238 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 11239 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
e630dfc6 | 11240 | 0, 0, Qnil); |
e6b01c14 | 11241 | |
284f4730 JB |
11242 | _longjmp (getcjmp, 1); |
11243 | } | |
11244 | \f | |
a712a8c3 KL |
11245 | DEFUN ("set-input-interrupt-mode", Fset_input_interrupt_mode, Sset_input_interrupt_mode, 1, 1, 0, |
11246 | doc: /* Set interrupt mode of reading keyboard input. | |
11247 | If INTERRUPT is non-nil, Emacs will use input interrupts; | |
11248 | otherwise Emacs uses CBREAK mode. | |
11249 | ||
4707d2d0 | 11250 | See also `current-input-mode'. */) |
a712a8c3 KL |
11251 | (interrupt) |
11252 | Lisp_Object interrupt; | |
284f4730 | 11253 | { |
a712a8c3 | 11254 | int new_interrupt_input; |
284f4730 JB |
11255 | #ifdef SIGIO |
11256 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4beb2d71 | 11257 | #ifdef HAVE_X_WINDOWS |
6bbba5a6 | 11258 | if (x_display_list != NULL) |
9a0f60bb KH |
11259 | { |
11260 | /* When using X, don't give the user a real choice, | |
11261 | because we haven't implemented the mechanisms to support it. */ | |
11262 | #ifdef NO_SOCK_SIGIO | |
a712a8c3 | 11263 | new_interrupt_input = 0; |
9a0f60bb | 11264 | #else /* not NO_SOCK_SIGIO */ |
a712a8c3 | 11265 | new_interrupt_input = 1; |
284f4730 | 11266 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
11267 | } |
11268 | else | |
8ad093db | 11269 | #endif /* HAVE_X_WINDOWS */ |
a712a8c3 | 11270 | new_interrupt_input = !NILP (interrupt); |
284f4730 | 11271 | #else /* not SIGIO */ |
a712a8c3 | 11272 | new_interrupt_input = 0; |
284f4730 | 11273 | #endif /* not SIGIO */ |
9a0f60bb | 11274 | |
033b73e2 | 11275 | if (new_interrupt_input != interrupt_input) |
a712a8c3 KL |
11276 | { |
11277 | #ifdef POLL_FOR_INPUT | |
11278 | stop_polling (); | |
11279 | #endif | |
11280 | #ifndef DOS_NT | |
11281 | /* this causes startup screen to be restored and messes with the mouse */ | |
11282 | reset_all_sys_modes (); | |
11283 | #endif | |
11284 | interrupt_input = new_interrupt_input; | |
11285 | #ifndef DOS_NT | |
11286 | init_all_sys_modes (); | |
284f4730 | 11287 | #endif |
9a0f60bb | 11288 | |
a712a8c3 KL |
11289 | #ifdef POLL_FOR_INPUT |
11290 | poll_suppress_count = 1; | |
11291 | start_polling (); | |
11292 | #endif | |
11293 | } | |
11294 | return Qnil; | |
11295 | } | |
6bbba5a6 | 11296 | |
a712a8c3 KL |
11297 | DEFUN ("set-output-flow-control", Fset_output_flow_control, Sset_output_flow_control, 1, 2, 0, |
11298 | doc: /* Enable or disable ^S/^Q flow control for output to TERMINAL. | |
11299 | If FLOW is non-nil, flow control is enabled and you cannot use C-s or | |
11300 | C-q in key sequences. | |
11301 | ||
6ed8eeff | 11302 | This setting only has an effect on tty terminals and only when |
a712a8c3 KL |
11303 | Emacs reads input in CBREAK mode; see `set-input-interrupt-mode'. |
11304 | ||
11305 | See also `current-input-mode'. */) | |
11306 | (flow, terminal) | |
11307 | Lisp_Object flow, terminal; | |
11308 | { | |
6ed8eeff | 11309 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 | 11310 | struct tty_display_info *tty; |
d44004c0 | 11311 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11312 | return Qnil; |
6ed8eeff | 11313 | tty = t->display_info.tty; |
a712a8c3 KL |
11314 | |
11315 | if (tty->flow_control != !NILP (flow)) | |
daf01701 | 11316 | { |
a712a8c3 KL |
11317 | #ifndef DOS_NT |
11318 | /* this causes startup screen to be restored and messes with the mouse */ | |
11319 | reset_sys_modes (tty); | |
11320 | #endif | |
11321 | ||
daf01701 | 11322 | tty->flow_control = !NILP (flow); |
a712a8c3 KL |
11323 | |
11324 | #ifndef DOS_NT | |
11325 | init_sys_modes (tty); | |
11326 | #endif | |
daf01701 | 11327 | } |
ed8dad6b | 11328 | return Qnil; |
a712a8c3 KL |
11329 | } |
11330 | ||
11331 | DEFUN ("set-input-meta-mode", Fset_input_meta_mode, Sset_input_meta_mode, 1, 2, 0, | |
11332 | doc: /* Enable or disable 8-bit input on TERMINAL. | |
11333 | If META is t, Emacs will accept 8-bit input, and interpret the 8th | |
11334 | bit as the Meta modifier. | |
11335 | ||
11336 | If META is nil, Emacs will ignore the top bit, on the assumption it is | |
11337 | parity. | |
11338 | ||
11339 | Otherwise, Emacs will accept and pass through 8-bit input without | |
11340 | specially interpreting the top bit. | |
11341 | ||
6ed8eeff | 11342 | This setting only has an effect on tty terminal devices. |
3b7fbceb | 11343 | |
6ed8eeff | 11344 | Optional parameter TERMINAL specifies the tty terminal device to use. |
708e05dc CY |
11345 | It may be a terminal object, a frame, or nil for the terminal used by |
11346 | the currently selected frame. | |
a712a8c3 KL |
11347 | |
11348 | See also `current-input-mode'. */) | |
11349 | (meta, terminal) | |
11350 | Lisp_Object meta, terminal; | |
11351 | { | |
6ed8eeff | 11352 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 KL |
11353 | struct tty_display_info *tty; |
11354 | int new_meta; | |
033b73e2 | 11355 | |
d44004c0 | 11356 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11357 | return Qnil; |
6ed8eeff | 11358 | tty = t->display_info.tty; |
a712a8c3 | 11359 | |
b04904fb | 11360 | if (NILP (meta)) |
a712a8c3 | 11361 | new_meta = 0; |
b04904fb | 11362 | else if (EQ (meta, Qt)) |
a712a8c3 | 11363 | new_meta = 1; |
b04904fb | 11364 | else |
a712a8c3 | 11365 | new_meta = 2; |
284f4730 | 11366 | |
033b73e2 | 11367 | if (tty->meta_key != new_meta) |
a712a8c3 | 11368 | { |
07de30b9 | 11369 | #ifndef DOS_NT |
a712a8c3 KL |
11370 | /* this causes startup screen to be restored and messes with the mouse */ |
11371 | reset_sys_modes (tty); | |
2ee250ec | 11372 | #endif |
34f04431 | 11373 | |
a712a8c3 | 11374 | tty->meta_key = new_meta; |
033b73e2 | 11375 | |
a712a8c3 KL |
11376 | #ifndef DOS_NT |
11377 | init_sys_modes (tty); | |
34f04431 | 11378 | #endif |
a712a8c3 KL |
11379 | } |
11380 | return Qnil; | |
11381 | } | |
11382 | ||
11383 | DEFUN ("set-quit-char", Fset_quit_char, Sset_quit_char, 1, 1, 0, | |
11384 | doc: /* Specify character used for quitting. | |
11385 | QUIT must be an ASCII character. | |
11386 | ||
fdf5ebde KL |
11387 | This function only has an effect on the controlling tty of the Emacs |
11388 | process. | |
a712a8c3 KL |
11389 | |
11390 | See also `current-input-mode'. */) | |
11391 | (quit) | |
11392 | Lisp_Object quit; | |
11393 | { | |
fdf5ebde | 11394 | struct terminal *t = get_named_tty ("/dev/tty"); |
a712a8c3 | 11395 | struct tty_display_info *tty; |
d44004c0 | 11396 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11397 | return Qnil; |
6ed8eeff | 11398 | tty = t->display_info.tty; |
a712a8c3 | 11399 | |
6213d5b3 KL |
11400 | if (NILP (quit) || !INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400) |
11401 | error ("QUIT must be an ASCII character"); | |
11402 | ||
a712a8c3 KL |
11403 | #ifndef DOS_NT |
11404 | /* this causes startup screen to be restored and messes with the mouse */ | |
11405 | reset_sys_modes (tty); | |
11406 | #endif | |
033b73e2 | 11407 | |
a712a8c3 KL |
11408 | /* Don't let this value be out of range. */ |
11409 | quit_char = XINT (quit) & (tty->meta_key == 0 ? 0177 : 0377); | |
11410 | ||
11411 | #ifndef DOS_NT | |
11412 | init_sys_modes (tty); | |
34f04431 | 11413 | #endif |
a712a8c3 KL |
11414 | |
11415 | return Qnil; | |
11416 | } | |
033b73e2 | 11417 | |
a712a8c3 KL |
11418 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, |
11419 | doc: /* Set mode of reading keyboard input. | |
11420 | First arg INTERRUPT non-nil means use input interrupts; | |
11421 | nil means use CBREAK mode. | |
11422 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
11423 | (no effect except in CBREAK mode). | |
11424 | Third arg META t means accept 8-bit input (for a Meta key). | |
11425 | META nil means ignore the top bit, on the assumption it is parity. | |
11426 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
11427 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
11428 | See also `current-input-mode'. */) | |
11429 | (interrupt, flow, meta, quit) | |
11430 | Lisp_Object interrupt, flow, meta, quit; | |
11431 | { | |
11432 | Fset_input_interrupt_mode (interrupt); | |
11433 | Fset_output_flow_control (flow, Qnil); | |
11434 | Fset_input_meta_mode (meta, Qnil); | |
0a42be6d RF |
11435 | if (!NILP (quit)) |
11436 | Fset_quit_char (quit); | |
284f4730 JB |
11437 | return Qnil; |
11438 | } | |
80645119 JB |
11439 | |
11440 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
11441 | doc: /* Return information about the way Emacs currently reads keyboard input. |
11442 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
11443 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
11444 | nil, Emacs is using CBREAK mode. | |
11445 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
11446 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
11447 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
11448 | META nil means ignoring the top bit, on the assumption it is parity. | |
11449 | META is neither t nor nil if accepting 8-bit input and using | |
11450 | all 8 bits as the character code. | |
11451 | QUIT is the character Emacs currently uses to quit. | |
11452 | The elements of this list correspond to the arguments of | |
11453 | `set-input-mode'. */) | |
11454 | () | |
80645119 JB |
11455 | { |
11456 | Lisp_Object val[4]; | |
daf01701 | 11457 | struct frame *sf = XFRAME (selected_frame); |
80645119 JB |
11458 | |
11459 | val[0] = interrupt_input ? Qt : Qnil; | |
d44004c0 | 11460 | if (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf)) |
daf01701 KL |
11461 | { |
11462 | val[1] = FRAME_TTY (sf)->flow_control ? Qt : Qnil; | |
c3b4957f KL |
11463 | val[2] = (FRAME_TTY (sf)->meta_key == 2 |
11464 | ? make_number (0) | |
11465 | : (CURTTY ()->meta_key == 1 ? Qt : Qnil)); | |
daf01701 KL |
11466 | } |
11467 | else | |
11468 | { | |
11469 | val[1] = Qnil; | |
11470 | val[2] = Qt; | |
11471 | } | |
bb9e9bed | 11472 | XSETFASTINT (val[3], quit_char); |
80645119 | 11473 | |
bf673a7a | 11474 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
11475 | } |
11476 | ||
a25f766a | 11477 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
11478 | doc: /* Return position information for pixel coordinates X and Y. |
11479 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 11480 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
11481 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
11482 | edge of the window. | |
ec026e7a KS |
11483 | |
11484 | The return value is similar to a mouse click position: | |
11485 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11486 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
11487 | The `posn-' functions access elements of such lists. */) | |
a25f766a KS |
11488 | (x, y, frame_or_window, whole) |
11489 | Lisp_Object x, y, frame_or_window, whole; | |
ec026e7a | 11490 | { |
f4a5a485 SM |
11491 | CHECK_NATNUM (x); |
11492 | CHECK_NATNUM (y); | |
11493 | ||
ec026e7a KS |
11494 | if (NILP (frame_or_window)) |
11495 | frame_or_window = selected_window; | |
11496 | ||
11497 | if (WINDOWP (frame_or_window)) | |
11498 | { | |
11499 | struct window *w; | |
11500 | ||
11501 | CHECK_LIVE_WINDOW (frame_or_window); | |
11502 | ||
11503 | w = XWINDOW (frame_or_window); | |
6507c4c7 KS |
11504 | XSETINT (x, (XINT (x) |
11505 | + WINDOW_LEFT_EDGE_X (w) | |
a25f766a KS |
11506 | + (NILP (whole) |
11507 | ? window_box_left_offset (w, TEXT_AREA) | |
6507c4c7 | 11508 | : 0))); |
ec026e7a KS |
11509 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
11510 | frame_or_window = w->frame; | |
11511 | } | |
11512 | ||
11513 | CHECK_LIVE_FRAME (frame_or_window); | |
11514 | ||
11515 | return make_lispy_position (XFRAME (frame_or_window), &x, &y, 0); | |
11516 | } | |
11517 | ||
11518 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
11519 | doc: /* Return position information for buffer POS in WINDOW. | |
11520 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
11521 | ||
11522 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 11523 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
11524 | a mouse click at the upper left corner of the glyph corresponding |
11525 | to the given buffer position: | |
11526 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11527 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 11528 | The `posn-' functions access elements of such lists. */) |
ec026e7a KS |
11529 | (pos, window) |
11530 | Lisp_Object pos, window; | |
11531 | { | |
11532 | Lisp_Object tem; | |
11533 | ||
6507c4c7 KS |
11534 | if (NILP (window)) |
11535 | window = selected_window; | |
11536 | ||
ec026e7a KS |
11537 | tem = Fpos_visible_in_window_p (pos, window, Qt); |
11538 | if (!NILP (tem)) | |
6507c4c7 KS |
11539 | { |
11540 | Lisp_Object x = XCAR (tem); | |
11541 | Lisp_Object y = XCAR (XCDR (tem)); | |
11542 | ||
11543 | /* Point invisible due to hscrolling? */ | |
11544 | if (XINT (x) < 0) | |
11545 | return Qnil; | |
11546 | tem = Fposn_at_x_y (x, y, window, Qnil); | |
11547 | } | |
11548 | ||
ec026e7a KS |
11549 | return tem; |
11550 | } | |
11551 | ||
284f4730 | 11552 | \f |
6c6083a9 | 11553 | /* |
c5fdd383 | 11554 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
11555 | */ |
11556 | void | |
c5fdd383 KH |
11557 | init_kboard (kb) |
11558 | KBOARD *kb; | |
6c6083a9 | 11559 | { |
217258d5 | 11560 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 11561 | kb->Vlast_command = Qnil; |
75045dcb | 11562 | kb->Vreal_last_command = Qnil; |
2e478293 | 11563 | kb->Vkeyboard_translate_table = Qnil; |
d0d3a311 | 11564 | kb->Vlast_repeatable_command = Qnil; |
d8bcf58e | 11565 | kb->Vprefix_arg = Qnil; |
75045dcb | 11566 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
11567 | kb->kbd_queue = Qnil; |
11568 | kb->kbd_queue_has_data = 0; | |
11569 | kb->immediate_echo = 0; | |
678e9d18 | 11570 | kb->echo_string = Qnil; |
c5fdd383 KH |
11571 | kb->echo_after_prompt = -1; |
11572 | kb->kbd_macro_buffer = 0; | |
11573 | kb->kbd_macro_bufsize = 0; | |
11574 | kb->defining_kbd_macro = Qnil; | |
11575 | kb->Vlast_kbd_macro = Qnil; | |
11576 | kb->reference_count = 0; | |
7c97ffdc | 11577 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 11578 | kb->system_key_syms = Qnil; |
70b8d0a4 | 11579 | kb->Vwindow_system = Qt; /* Unset. */ |
4f4a84ec | 11580 | kb->Vinput_decode_map = Fmake_sparse_keymap (Qnil); |
ac09dc1e KL |
11581 | kb->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
11582 | Fset_keymap_parent (kb->Vlocal_function_key_map, Vfunction_key_map); | |
9ba47203 | 11583 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
11584 | } |
11585 | ||
11586 | /* | |
c5fdd383 | 11587 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 11588 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
11589 | * it a second time. |
11590 | */ | |
e50b8090 | 11591 | static void |
c5fdd383 KH |
11592 | wipe_kboard (kb) |
11593 | KBOARD *kb; | |
6c6083a9 | 11594 | { |
70fdbb46 | 11595 | xfree (kb->kbd_macro_buffer); |
6c6083a9 KH |
11596 | } |
11597 | ||
a122a38e GM |
11598 | /* Free KB and memory referenced from it. */ |
11599 | ||
e50b8090 KH |
11600 | void |
11601 | delete_kboard (kb) | |
a122a38e | 11602 | KBOARD *kb; |
e50b8090 KH |
11603 | { |
11604 | KBOARD **kbp; | |
c60ee5e7 | 11605 | |
e50b8090 KH |
11606 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
11607 | if (*kbp == NULL) | |
11608 | abort (); | |
11609 | *kbp = kb->next_kboard; | |
a122a38e GM |
11610 | |
11611 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
11612 | if (kb == current_kboard |
11613 | && FRAMEP (selected_frame) | |
11614 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 11615 | { |
b3e6f69c KL |
11616 | current_kboard = FRAME_KBOARD (XFRAME (selected_frame)); |
11617 | single_kboard = 0; | |
a122a38e GM |
11618 | if (current_kboard == kb) |
11619 | abort (); | |
11620 | } | |
c60ee5e7 | 11621 | |
e50b8090 KH |
11622 | wipe_kboard (kb); |
11623 | xfree (kb); | |
11624 | } | |
a122a38e | 11625 | |
dfcf069d | 11626 | void |
284f4730 JB |
11627 | init_keyboard () |
11628 | { | |
284f4730 JB |
11629 | /* This is correct before outermost invocation of the editor loop */ |
11630 | command_loop_level = -1; | |
11631 | immediate_quit = 0; | |
11632 | quit_char = Ctl ('g'); | |
24597608 | 11633 | Vunread_command_events = Qnil; |
86e5706b | 11634 | unread_command_char = -1; |
87dd9b9b | 11635 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 11636 | total_keys = 0; |
9deb415a | 11637 | recent_keys_index = 0; |
beecf6a1 KH |
11638 | kbd_fetch_ptr = kbd_buffer; |
11639 | kbd_store_ptr = kbd_buffer; | |
ae372f41 | 11640 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a9d77f1f | 11641 | do_mouse_tracking = Qnil; |
2eb6bfbe | 11642 | #endif |
284f4730 | 11643 | input_pending = 0; |
4c180390 JD |
11644 | interrupt_input_blocked = 0; |
11645 | interrupt_input_pending = 0; | |
07a1e794 | 11646 | #ifdef SYNC_INPUT |
ceb18827 | 11647 | pending_signals = 0; |
07a1e794 | 11648 | #endif |
284f4730 | 11649 | |
4c52b668 KH |
11650 | /* This means that command_loop_1 won't try to select anything the first |
11651 | time through. */ | |
11652 | internal_last_event_frame = Qnil; | |
11653 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 11654 | |
aaca43a1 | 11655 | current_kboard = initial_kboard; |
1bc973c2 | 11656 | /* Re-initialize the keyboard again. */ |
aaca43a1 | 11657 | wipe_kboard (current_kboard); |
c5fdd383 | 11658 | init_kboard (current_kboard); |
1bc973c2 SM |
11659 | /* A value of nil for Vwindow_system normally means a tty, but we also use |
11660 | it for the initial terminal since there is no window system there. */ | |
11661 | current_kboard->Vwindow_system = Qnil; | |
07d2b8de | 11662 | |
7b00d185 | 11663 | if (!noninteractive) |
284f4730 | 11664 | { |
3224dac1 KL |
11665 | /* Before multi-tty support, these handlers used to be installed |
11666 | only if the current session was a tty session. Now an Emacs | |
11667 | session may have multiple display types, so we always handle | |
11668 | SIGINT. There is special code in interrupt_signal to exit | |
4ca927b4 KL |
11669 | Emacs on SIGINT when there are no termcap frames on the |
11670 | controlling terminal. */ | |
284f4730 | 11671 | signal (SIGINT, interrupt_signal); |
cb5df6ae | 11672 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
11673 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
11674 | SIGQUIT and we can't tell which one it will give us. */ | |
11675 | signal (SIGQUIT, interrupt_signal); | |
11676 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 11677 | } |
284f4730 JB |
11678 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
11679 | #ifdef SIGIO | |
7a80a6f6 RS |
11680 | if (!noninteractive) |
11681 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 11682 | #endif /* SIGIO */ |
284f4730 JB |
11683 | |
11684 | /* Use interrupt input by default, if it works and noninterrupt input | |
11685 | has deficiencies. */ | |
11686 | ||
11687 | #ifdef INTERRUPT_INPUT | |
11688 | interrupt_input = 1; | |
11689 | #else | |
11690 | interrupt_input = 0; | |
11691 | #endif | |
11692 | ||
284f4730 JB |
11693 | sigfree (); |
11694 | dribble = 0; | |
11695 | ||
11696 | if (keyboard_init_hook) | |
11697 | (*keyboard_init_hook) (); | |
11698 | ||
11699 | #ifdef POLL_FOR_INPUT | |
c3c963a0 | 11700 | poll_timer = NULL; |
284f4730 JB |
11701 | poll_suppress_count = 1; |
11702 | start_polling (); | |
11703 | #endif | |
11704 | } | |
11705 | ||
df0f2ba1 | 11706 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
11707 | event header symbols and put properties on them. */ |
11708 | struct event_head { | |
11709 | Lisp_Object *var; | |
11710 | char *name; | |
11711 | Lisp_Object *kind; | |
11712 | }; | |
11713 | ||
11714 | struct event_head head_table[] = { | |
7406e988 PJ |
11715 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
11716 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
11717 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
11718 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
11719 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 11720 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
11721 | /* `select-window' should be handled just like `switch-frame' |
11722 | in read_key_sequence. */ | |
11723 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
11724 | }; |
11725 | ||
dfcf069d | 11726 | void |
284f4730 JB |
11727 | syms_of_keyboard () |
11728 | { | |
58555d81 | 11729 | pending_funcalls = Qnil; |
864660a2 | 11730 | staticpro (&pending_funcalls); |
58555d81 | 11731 | |
a4ada374 | 11732 | Vlispy_mouse_stem = make_pure_c_string ("mouse"); |
8e1e4240 | 11733 | staticpro (&Vlispy_mouse_stem); |
f0c1cc56 | 11734 | |
9ea173e8 | 11735 | /* Tool-bars. */ |
d67b4f80 | 11736 | QCimage = intern_c_string (":image"); |
7ee32cda GM |
11737 | staticpro (&QCimage); |
11738 | ||
11739 | staticpro (&Qhelp_echo); | |
d67b4f80 | 11740 | Qhelp_echo = intern_c_string ("help-echo"); |
7ee32cda | 11741 | |
cf0590c4 | 11742 | staticpro (&Qrtl); |
d67b4f80 | 11743 | Qrtl = intern_c_string (":rtl"); |
cf0590c4 | 11744 | |
e8886a1d RS |
11745 | staticpro (&item_properties); |
11746 | item_properties = Qnil; | |
11747 | ||
9ea173e8 GM |
11748 | staticpro (&tool_bar_item_properties); |
11749 | tool_bar_item_properties = Qnil; | |
11750 | staticpro (&tool_bar_items_vector); | |
11751 | tool_bar_items_vector = Qnil; | |
7ee32cda | 11752 | |
d5eecefb RS |
11753 | staticpro (&real_this_command); |
11754 | real_this_command = Qnil; | |
11755 | ||
d67b4f80 | 11756 | Qtimer_event_handler = intern_c_string ("timer-event-handler"); |
d925fb39 RS |
11757 | staticpro (&Qtimer_event_handler); |
11758 | ||
d67b4f80 | 11759 | Qdisabled_command_function = intern_c_string ("disabled-command-function"); |
971e4c98 | 11760 | staticpro (&Qdisabled_command_function); |
2e894dab | 11761 | |
d67b4f80 | 11762 | Qself_insert_command = intern_c_string ("self-insert-command"); |
284f4730 JB |
11763 | staticpro (&Qself_insert_command); |
11764 | ||
d67b4f80 | 11765 | Qforward_char = intern_c_string ("forward-char"); |
284f4730 JB |
11766 | staticpro (&Qforward_char); |
11767 | ||
d67b4f80 | 11768 | Qbackward_char = intern_c_string ("backward-char"); |
284f4730 JB |
11769 | staticpro (&Qbackward_char); |
11770 | ||
d67b4f80 | 11771 | Qdisabled = intern_c_string ("disabled"); |
284f4730 JB |
11772 | staticpro (&Qdisabled); |
11773 | ||
d67b4f80 | 11774 | Qundefined = intern_c_string ("undefined"); |
e58aa385 RS |
11775 | staticpro (&Qundefined); |
11776 | ||
d67b4f80 | 11777 | Qpre_command_hook = intern_c_string ("pre-command-hook"); |
86e5706b RS |
11778 | staticpro (&Qpre_command_hook); |
11779 | ||
d67b4f80 | 11780 | Qpost_command_hook = intern_c_string ("post-command-hook"); |
86e5706b RS |
11781 | staticpro (&Qpost_command_hook); |
11782 | ||
d67b4f80 | 11783 | Qdeferred_action_function = intern_c_string ("deferred-action-function"); |
3ef14e46 RS |
11784 | staticpro (&Qdeferred_action_function); |
11785 | ||
d67b4f80 | 11786 | Qcommand_hook_internal = intern_c_string ("command-hook-internal"); |
40932d1a RS |
11787 | staticpro (&Qcommand_hook_internal); |
11788 | ||
d67b4f80 | 11789 | Qfunction_key = intern_c_string ("function-key"); |
284f4730 | 11790 | staticpro (&Qfunction_key); |
d67b4f80 | 11791 | Qmouse_click = intern_c_string ("mouse-click"); |
284f4730 | 11792 | staticpro (&Qmouse_click); |
9e2a2647 | 11793 | #if defined (WINDOWSNT) |
d67b4f80 | 11794 | Qlanguage_change = intern_c_string ("language-change"); |
1161d367 | 11795 | staticpro (&Qlanguage_change); |
07de30b9 | 11796 | #endif |
d67b4f80 | 11797 | Qdrag_n_drop = intern_c_string ("drag-n-drop"); |
a24dc617 | 11798 | staticpro (&Qdrag_n_drop); |
284f4730 | 11799 | |
d67b4f80 | 11800 | Qsave_session = intern_c_string ("save-session"); |
6e604a9b | 11801 | staticpro (&Qsave_session); |
c60ee5e7 | 11802 | |
033b73e2 | 11803 | #ifdef HAVE_DBUS |
d67b4f80 | 11804 | Qdbus_event = intern_c_string ("dbus-event"); |
033b73e2 MA |
11805 | staticpro (&Qdbus_event); |
11806 | #endif | |
11807 | ||
d67b4f80 | 11808 | Qmenu_enable = intern_c_string ("menu-enable"); |
598a9fa7 | 11809 | staticpro (&Qmenu_enable); |
d67b4f80 | 11810 | QCenable = intern_c_string (":enable"); |
e8886a1d | 11811 | staticpro (&QCenable); |
d67b4f80 | 11812 | QCvisible = intern_c_string (":visible"); |
e8886a1d | 11813 | staticpro (&QCvisible); |
d67b4f80 | 11814 | QChelp = intern_c_string (":help"); |
7ee32cda | 11815 | staticpro (&QChelp); |
d67b4f80 | 11816 | QCfilter = intern_c_string (":filter"); |
e8886a1d | 11817 | staticpro (&QCfilter); |
d67b4f80 | 11818 | QCbutton = intern_c_string (":button"); |
e8886a1d | 11819 | staticpro (&QCbutton); |
d67b4f80 | 11820 | QCkeys = intern_c_string (":keys"); |
74c1de23 | 11821 | staticpro (&QCkeys); |
d67b4f80 | 11822 | QCkey_sequence = intern_c_string (":key-sequence"); |
74c1de23 | 11823 | staticpro (&QCkey_sequence); |
d67b4f80 | 11824 | QCtoggle = intern_c_string (":toggle"); |
e8886a1d | 11825 | staticpro (&QCtoggle); |
d67b4f80 | 11826 | QCradio = intern_c_string (":radio"); |
e8886a1d | 11827 | staticpro (&QCradio); |
598a9fa7 | 11828 | |
d67b4f80 | 11829 | Qmode_line = intern_c_string ("mode-line"); |
284f4730 | 11830 | staticpro (&Qmode_line); |
d67b4f80 | 11831 | Qvertical_line = intern_c_string ("vertical-line"); |
e5d77022 | 11832 | staticpro (&Qvertical_line); |
d67b4f80 | 11833 | Qvertical_scroll_bar = intern_c_string ("vertical-scroll-bar"); |
3c370943 | 11834 | staticpro (&Qvertical_scroll_bar); |
d67b4f80 | 11835 | Qmenu_bar = intern_c_string ("menu-bar"); |
5ec75a55 | 11836 | staticpro (&Qmenu_bar); |
4bb994d1 | 11837 | |
ae372f41 | 11838 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
d67b4f80 | 11839 | Qmouse_fixup_help_message = intern_c_string ("mouse-fixup-help-message"); |
c22237f7 KS |
11840 | staticpro (&Qmouse_fixup_help_message); |
11841 | #endif | |
11842 | ||
d67b4f80 | 11843 | Qabove_handle = intern_c_string ("above-handle"); |
4bb994d1 | 11844 | staticpro (&Qabove_handle); |
d67b4f80 | 11845 | Qhandle = intern_c_string ("handle"); |
4bb994d1 | 11846 | staticpro (&Qhandle); |
d67b4f80 | 11847 | Qbelow_handle = intern_c_string ("below-handle"); |
4bb994d1 | 11848 | staticpro (&Qbelow_handle); |
d67b4f80 | 11849 | Qup = intern_c_string ("up"); |
db08707d | 11850 | staticpro (&Qup); |
d67b4f80 | 11851 | Qdown = intern_c_string ("down"); |
db08707d | 11852 | staticpro (&Qdown); |
d67b4f80 | 11853 | Qtop = intern_c_string ("top"); |
7ee32cda | 11854 | staticpro (&Qtop); |
d67b4f80 | 11855 | Qbottom = intern_c_string ("bottom"); |
7ee32cda | 11856 | staticpro (&Qbottom); |
d67b4f80 | 11857 | Qend_scroll = intern_c_string ("end-scroll"); |
7ee32cda | 11858 | staticpro (&Qend_scroll); |
d67b4f80 | 11859 | Qratio = intern_c_string ("ratio"); |
eef28553 | 11860 | staticpro (&Qratio); |
284f4730 | 11861 | |
d67b4f80 | 11862 | Qevent_kind = intern_c_string ("event-kind"); |
284f4730 | 11863 | staticpro (&Qevent_kind); |
d67b4f80 | 11864 | Qevent_symbol_elements = intern_c_string ("event-symbol-elements"); |
88cb0656 | 11865 | staticpro (&Qevent_symbol_elements); |
d67b4f80 | 11866 | Qevent_symbol_element_mask = intern_c_string ("event-symbol-element-mask"); |
0a7f1fc0 | 11867 | staticpro (&Qevent_symbol_element_mask); |
d67b4f80 | 11868 | Qmodifier_cache = intern_c_string ("modifier-cache"); |
0a7f1fc0 | 11869 | staticpro (&Qmodifier_cache); |
284f4730 | 11870 | |
d67b4f80 | 11871 | Qrecompute_lucid_menubar = intern_c_string ("recompute-lucid-menubar"); |
48e416d4 | 11872 | staticpro (&Qrecompute_lucid_menubar); |
d67b4f80 | 11873 | Qactivate_menubar_hook = intern_c_string ("activate-menubar-hook"); |
48e416d4 RS |
11874 | staticpro (&Qactivate_menubar_hook); |
11875 | ||
d67b4f80 | 11876 | Qpolling_period = intern_c_string ("polling-period"); |
f4eef8b4 RS |
11877 | staticpro (&Qpolling_period); |
11878 | ||
d67b4f80 | 11879 | Qinput_method_function = intern_c_string ("input-method-function"); |
7d18f9ae RS |
11880 | staticpro (&Qinput_method_function); |
11881 | ||
d67b4f80 | 11882 | Qinput_method_exit_on_first_char = intern_c_string ("input-method-exit-on-first-char"); |
d5eecefb | 11883 | staticpro (&Qinput_method_exit_on_first_char); |
d67b4f80 | 11884 | Qinput_method_use_echo_area = intern_c_string ("input-method-use-echo-area"); |
d5eecefb RS |
11885 | staticpro (&Qinput_method_use_echo_area); |
11886 | ||
11887 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
11888 | Fset (Qinput_method_use_echo_area, Qnil); | |
11889 | ||
e18dfbf4 | 11890 | last_point_position_buffer = Qnil; |
bb0e1d19 | 11891 | last_point_position_window = Qnil; |
e18dfbf4 | 11892 | |
284f4730 JB |
11893 | { |
11894 | struct event_head *p; | |
11895 | ||
11896 | for (p = head_table; | |
11897 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
11898 | p++) | |
11899 | { | |
d67b4f80 | 11900 | *p->var = intern_c_string (p->name); |
284f4730 JB |
11901 | staticpro (p->var); |
11902 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 11903 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
11904 | } |
11905 | } | |
11906 | ||
1373f3be | 11907 | button_down_location = Fmake_vector (make_number (5), Qnil); |
7b4aedb9 | 11908 | staticpro (&button_down_location); |
1373f3be | 11909 | mouse_syms = Fmake_vector (make_number (5), Qnil); |
8e1e4240 | 11910 | staticpro (&mouse_syms); |
3208cb35 YM |
11911 | wheel_syms = Fmake_vector (make_number (sizeof (lispy_wheel_names) |
11912 | / sizeof (lispy_wheel_names[0])), | |
11913 | Qnil); | |
8006e4bb | 11914 | staticpro (&wheel_syms); |
88cb0656 JB |
11915 | |
11916 | { | |
11917 | int i; | |
11918 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
11919 | ||
11920 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
11921 | for (i = 0; i < len; i++) | |
86e5706b | 11922 | if (modifier_names[i]) |
d67b4f80 | 11923 | XVECTOR (modifier_symbols)->contents[i] = intern_c_string (modifier_names[i]); |
88cb0656 JB |
11924 | staticpro (&modifier_symbols); |
11925 | } | |
11926 | ||
9deb415a JB |
11927 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
11928 | staticpro (&recent_keys); | |
11929 | ||
6569cc8d | 11930 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 11931 | staticpro (&this_command_keys); |
6569cc8d | 11932 | |
7d18f9ae RS |
11933 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
11934 | staticpro (&raw_keybuf); | |
11935 | ||
d67b4f80 | 11936 | Qextended_command_history = intern_c_string ("extended-command-history"); |
03b4122a BF |
11937 | Fset (Qextended_command_history, Qnil); |
11938 | staticpro (&Qextended_command_history); | |
11939 | ||
24597608 RS |
11940 | accent_key_syms = Qnil; |
11941 | staticpro (&accent_key_syms); | |
11942 | ||
284f4730 JB |
11943 | func_key_syms = Qnil; |
11944 | staticpro (&func_key_syms); | |
11945 | ||
a24dc617 RS |
11946 | drag_n_drop_syms = Qnil; |
11947 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 11948 | |
cd21b839 JB |
11949 | unread_switch_frame = Qnil; |
11950 | staticpro (&unread_switch_frame); | |
11951 | ||
fe412364 EN |
11952 | internal_last_event_frame = Qnil; |
11953 | staticpro (&internal_last_event_frame); | |
11954 | ||
11955 | read_key_sequence_cmd = Qnil; | |
11956 | staticpro (&read_key_sequence_cmd); | |
11957 | ||
759860a6 RS |
11958 | menu_bar_one_keymap_changed_items = Qnil; |
11959 | staticpro (&menu_bar_one_keymap_changed_items); | |
11960 | ||
7320c7de KS |
11961 | menu_bar_items_vector = Qnil; |
11962 | staticpro (&menu_bar_items_vector); | |
11963 | ||
638d3da0 CY |
11964 | help_form_saved_window_configs = Qnil; |
11965 | staticpro (&help_form_saved_window_configs); | |
11966 | ||
ff458d81 | 11967 | defsubr (&Scurrent_idle_time); |
58da34c7 | 11968 | defsubr (&Sevent_symbol_parse_modifiers); |
a1706c30 | 11969 | defsubr (&Sevent_convert_list); |
284f4730 | 11970 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11971 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11972 | defsubr (&Srecursive_edit); |
ae372f41 | 11973 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
284f4730 | 11974 | defsubr (&Strack_mouse); |
2eb6bfbe | 11975 | #endif |
284f4730 JB |
11976 | defsubr (&Sinput_pending_p); |
11977 | defsubr (&Scommand_execute); | |
11978 | defsubr (&Srecent_keys); | |
11979 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11980 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11981 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11982 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11983 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11984 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11985 | defsubr (&Ssuspend_emacs); |
11986 | defsubr (&Sabort_recursive_edit); | |
11987 | defsubr (&Sexit_recursive_edit); | |
11988 | defsubr (&Srecursion_depth); | |
11989 | defsubr (&Stop_level); | |
11990 | defsubr (&Sdiscard_input); | |
11991 | defsubr (&Sopen_dribble_file); | |
a712a8c3 KL |
11992 | defsubr (&Sset_input_interrupt_mode); |
11993 | defsubr (&Sset_output_flow_control); | |
11994 | defsubr (&Sset_input_meta_mode); | |
11995 | defsubr (&Sset_quit_char); | |
284f4730 | 11996 | defsubr (&Sset_input_mode); |
80645119 | 11997 | defsubr (&Scurrent_input_mode); |
284f4730 | 11998 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11999 | defsubr (&Sposn_at_point); |
12000 | defsubr (&Sposn_at_x_y); | |
284f4730 | 12001 | |
4b09796d | 12002 | DEFVAR_LISP ("last-command-event", &last_command_event, |
4707d2d0 | 12003 | doc: /* Last input event that was part of a command. */); |
284f4730 | 12004 | |
7d6de002 | 12005 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
12006 | doc: /* Last input event in a command, except for mouse menu events. |
12007 | Mouse menus give back keys that don't look like mouse events; | |
12008 | this variable holds the actual mouse event that led to the menu, | |
12009 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 12010 | |
4b09796d | 12011 | DEFVAR_LISP ("last-input-event", &last_input_event, |
fa1361cb | 12012 | doc: /* Last input event. */); |
86e5706b | 12013 | |
24597608 | 12014 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 | 12015 | doc: /* List of events to be read as the command input. |
96f4f7ec KS |
12016 | These events are processed first, before actual keyboard input. |
12017 | Events read from this list are not normally added to `this-command-keys', | |
12018 | as they will already have been added once as they were read for the first time. | |
12019 | An element of the form (t . EVENT) forces EVENT to be added to that list. */); | |
7d18f9ae | 12020 | Vunread_command_events = Qnil; |
284f4730 | 12021 | |
86e5706b | 12022 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 12023 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 12024 | |
7d18f9ae | 12025 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 | 12026 | doc: /* List of events to be processed as input by input methods. |
748726f4 | 12027 | These events are processed before `unread-command-events' |
7d8d0914 | 12028 | and actual keyboard input, but are not given to `input-method-function'. */); |
7d18f9ae RS |
12029 | Vunread_post_input_method_events = Qnil; |
12030 | ||
12031 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
12032 | doc: /* List of events to be processed as input by input methods. |
12033 | These events are processed after `unread-command-events', but | |
748726f4 KH |
12034 | before actual keyboard input. |
12035 | If there's an active input method, the events are given to | |
12036 | `input-method-function'. */); | |
7d18f9ae RS |
12037 | Vunread_input_method_events = Qnil; |
12038 | ||
284f4730 | 12039 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
12040 | doc: /* Meta-prefix character code. |
12041 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 12042 | XSETINT (meta_prefix_char, 033); |
284f4730 | 12043 | |
6c7178b9 | 12044 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
12045 | doc: /* The last command executed. |
12046 | Normally a symbol with a function definition, but can be whatever was found | |
12047 | in the keymap, or whatever the variable `this-command' was set to by that | |
12048 | command. | |
12049 | ||
12050 | The value `mode-exit' is special; it means that the previous command | |
12051 | read an event that told it to exit, and it did so and unread that event. | |
12052 | In other words, the present command is the event that made the previous | |
12053 | command exit. | |
12054 | ||
12055 | The value `kill-region' is special; it means that the previous command | |
2a42d440 KL |
12056 | was a kill command. |
12057 | ||
6ed8eeff | 12058 | `last-command' has a separate binding for each terminal device. |
2a42d440 | 12059 | See Info node `(elisp)Multiple displays'. */); |
284f4730 | 12060 | |
75045dcb | 12061 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 12062 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 12063 | |
d0d3a311 MR |
12064 | DEFVAR_KBOARD ("last-repeatable-command", Vlast_repeatable_command, |
12065 | doc: /* Last command that may be repeated. | |
12066 | The last command executed that was not bound to an input event. | |
12067 | This is the command `repeat' will try to repeat. */); | |
12068 | ||
d5eecefb | 12069 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
12070 | doc: /* The command now being executed. |
12071 | The command can set this variable; whatever is put here | |
12072 | will be in `last-command' during the following command. */); | |
d5eecefb | 12073 | Vthis_command = Qnil; |
284f4730 | 12074 | |
025ae953 CY |
12075 | DEFVAR_LISP ("this-command-keys-shift-translated", |
12076 | &Vthis_command_keys_shift_translated, | |
12077 | doc: /* Non-nil if the key sequence activating this command was shift-translated. | |
12078 | Shift-translation occurs when there is no binding for the key sequence | |
12079 | as entered, but a binding was found by changing an upper-case letter | |
12080 | to lower-case, or a shifted function key to an unshifted one. */); | |
12081 | Vthis_command_keys_shift_translated = Qnil; | |
12082 | ||
8b9940e6 | 12083 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
12084 | doc: /* The command bound to the current key sequence before remapping. |
12085 | It equals `this-command' if the original command was not remapped through | |
12086 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 12087 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
12088 | Vthis_original_command = Qnil; |
12089 | ||
284f4730 | 12090 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
12091 | doc: /* *Number of input events between auto-saves. |
12092 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
12093 | auto_save_interval = 300; |
12094 | ||
12095 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
12096 | doc: /* *Number of seconds idle time before auto-save. |
12097 | Zero or nil means disable auto-saving due to idleness. | |
12098 | After auto-saving due to this many seconds of idle time, | |
12099 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 12100 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 12101 | |
39aab679 | 12102 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
12103 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
12104 | The value may be integer or floating point. */); | |
39aab679 | 12105 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
12106 | |
12107 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
12108 | doc: /* *Interval between polling for input during Lisp execution. |
12109 | The reason for polling is to make C-g work to stop a running program. | |
12110 | Polling is needed only when using X windows and SIGIO does not work. | |
12111 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 12112 | polling_period = 2; |
df0f2ba1 | 12113 | |
564dc952 | 12114 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 | 12115 | doc: /* *Maximum time between mouse clicks to make a double-click. |
05e0ac99 JB |
12116 | Measured in milliseconds. The value nil means disable double-click |
12117 | recognition; t means double-clicks have no time limit and are detected | |
4707d2d0 | 12118 | by position only. */); |
aab06933 | 12119 | Vdouble_click_time = make_number (500); |
fbcd35bd | 12120 | |
222d557c | 12121 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
12122 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
12123 | On window-system frames, value is the number of pixels the mouse may have | |
12124 | moved horizontally or vertically between two clicks to make a double-click. | |
12125 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
12126 | instead of pixels. |
12127 | ||
12128 | This variable is also the threshold for motion of the mouse | |
12129 | to count as a drag. */); | |
222d557c | 12130 | double_click_fuzz = 3; |
c60ee5e7 | 12131 | |
03361bcc | 12132 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 12133 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
12134 | inhibit_local_menu_bar_menus = 0; |
12135 | ||
284f4730 | 12136 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
12137 | doc: /* Number of complete key sequences read as input so far. |
12138 | This includes key sequences read from keyboard macros. | |
12139 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
12140 | num_input_keys = 0; |
12141 | ||
c43b1734 | 12142 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
12143 | doc: /* Number of input events read from the keyboard so far. |
12144 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 12145 | num_nonmacro_input_events = 0; |
fa90970d | 12146 | |
4c52b668 | 12147 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
12148 | doc: /* The frame in which the most recently read event occurred. |
12149 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
12150 | Vlast_event_frame = Qnil; |
12151 | ||
fa90970d RS |
12152 | /* This variable is set up in sysdep.c. */ |
12153 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 12154 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 12155 | |
7e85b935 | 12156 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
12157 | doc: /* Character to recognize as meaning Help. |
12158 | When it is read, do `(eval help-form)', and display result if it's a string. | |
12159 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 12160 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 12161 | |
ecb7cb34 | 12162 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
12163 | doc: /* List of input events to recognize as meaning Help. |
12164 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
12165 | Vhelp_event_list = Qnil; |
12166 | ||
284f4730 | 12167 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
12168 | doc: /* Form to execute when character `help-char' is read. |
12169 | If the form returns a string, that string is displayed. | |
12170 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
12171 | Vhelp_form = Qnil; |
12172 | ||
7e85b935 | 12173 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
12174 | doc: /* Command to run when `help-char' character follows a prefix key. |
12175 | This command is used only when there is no actual binding | |
12176 | for that character after that prefix key. */); | |
7e85b935 RS |
12177 | Vprefix_help_command = Qnil; |
12178 | ||
284f4730 | 12179 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
12180 | doc: /* Form to evaluate when Emacs starts up. |
12181 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
12182 | Vtop_level = Qnil; |
12183 | ||
2e478293 KL |
12184 | DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table, |
12185 | doc: /* Translate table for local keyboard input, or nil. | |
669de2fb LT |
12186 | If non-nil, the value should be a char-table. Each character read |
12187 | from the keyboard is looked up in this char-table. If the value found | |
12188 | there is non-nil, then it is used instead of the actual input character. | |
12189 | ||
12190 | The value can also be a string or vector, but this is considered obsolete. | |
12191 | If it is a string or vector of length N, character codes N and up are left | |
12192 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
12193 | |
12194 | This is applied to the characters supplied to input methods, not their | |
2e478293 KL |
12195 | output. See also `translation-table-for-input'. |
12196 | ||
6ed8eeff KL |
12197 | This variable has a separate binding for each terminal. See Info node |
12198 | `(elisp)Multiple displays'. */); | |
284f4730 | 12199 | |
8026024c | 12200 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
12201 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
12202 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
12203 | cannot_suspend = 0; |
12204 | ||
284f4730 | 12205 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
12206 | doc: /* Non-nil means prompt with menus when appropriate. |
12207 | This is done when reading from a keymap that has a prompt string, | |
12208 | for elements that have prompt strings. | |
12209 | The menu is displayed on the screen | |
12210 | if X menus were enabled at configuration | |
12211 | time and the previous event was a mouse click prefix key. | |
12212 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
12213 | menu_prompting = 1; |
12214 | ||
12215 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
12216 | doc: /* Character to see next line of menu prompt. |
12217 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 12218 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
12219 | |
12220 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
12221 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
12222 | Emacs applies the modifiers of the character stored here to each keyboard | |
12223 | character it reads. For example, after evaluating the expression | |
12224 | (setq extra-keyboard-modifiers ?\\C-x) | |
12225 | all input characters will have the control modifier applied to them. | |
12226 | ||
12227 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
12228 | not count as a control character; rather, it counts as a character | |
12229 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
12230 | cancels any modification. */); | |
9fa4395d | 12231 | extra_keyboard_modifiers = 0; |
86e5706b RS |
12232 | |
12233 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
12234 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
12235 | The command loop sets this to nil before each command, | |
12236 | and tests the value when the command returns. | |
12237 | Buffer modification stores t in this variable. */); | |
86e5706b | 12238 | Vdeactivate_mark = Qnil; |
d67b4f80 | 12239 | Qdeactivate_mark = intern_c_string ("deactivate-mark"); |
5c4cc82a | 12240 | staticpro (&Qdeactivate_mark); |
86e5706b | 12241 | |
b0f2a7bf | 12242 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
f761d6b6 | 12243 | doc: /* Temporary storage of `pre-command-hook' or `post-command-hook'. */); |
b0f2a7bf KH |
12244 | Vcommand_hook_internal = Qnil; |
12245 | ||
86e5706b | 12246 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
12247 | doc: /* Normal hook run before each command is executed. |
12248 | If an unhandled error happens in running this hook, | |
12249 | the hook value is set to nil, since otherwise the error | |
12250 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
12251 | Vpre_command_hook = Qnil; |
12252 | ||
12253 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
12254 | doc: /* Normal hook run after each command is executed. |
12255 | If an unhandled error happens in running this hook, | |
12256 | the hook value is set to nil, since otherwise the error | |
12257 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 12258 | Vpost_command_hook = Qnil; |
48e416d4 | 12259 | |
cf24f894 RS |
12260 | #if 0 |
12261 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 12262 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 | 12263 | #endif |
d67b4f80 | 12264 | Qecho_area_clear_hook = intern_c_string ("echo-area-clear-hook"); |
c8e16a02 | 12265 | staticpro (&Qecho_area_clear_hook); |
1373f3be | 12266 | Fset (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 12267 | |
48e416d4 | 12268 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 12269 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 12270 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 12271 | |
9f9c0e27 | 12272 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
12273 | doc: /* List of menu bar items to move to the end of the menu bar. |
12274 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 12275 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 12276 | |
217258d5 KH |
12277 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
12278 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
12279 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
12280 | If this variable is non-nil, it is used as a keymap instead of the | |
12281 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
12282 | It also replaces `overriding-local-map'. |
12283 | ||
4707d2d0 | 12284 | This variable is intended to let commands such as `universal-argument' |
2a42d440 KL |
12285 | set up a different keymap for reading the next command. |
12286 | ||
6ed8eeff KL |
12287 | `overriding-terminal-local-map' has a separate binding for each |
12288 | terminal device. | |
2a42d440 | 12289 | See Info node `(elisp)Multiple displays'. */); |
217258d5 | 12290 | |
9dd3131c | 12291 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 | 12292 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
12293 | If this variable is non-nil, it is used as a keymap--replacing the |
12294 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
12295 | Voverriding_local_map = Qnil; |
12296 | ||
d0a49716 | 12297 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
12298 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
12299 | Otherwise, the menu bar continues to reflect the buffer's local map | |
12300 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
12301 | Voverriding_local_map_menu_flag = Qnil; |
12302 | ||
7f07d5ca | 12303 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 12304 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
d67b4f80 | 12305 | Vspecial_event_map = Fcons (intern_c_string ("keymap"), Qnil); |
7f07d5ca | 12306 | |
71edead1 | 12307 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 12308 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 12309 | |
7c97ffdc | 12310 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
12311 | doc: /* Alist of system-specific X windows key symbols. |
12312 | Each element should have the form (N . SYMBOL) where N is the | |
12313 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
2a42d440 KL |
12314 | and SYMBOL is its name. |
12315 | ||
6ed8eeff | 12316 | `system-key-alist' has a separate binding for each terminal device. |
e93b2956 | 12317 | See Info node `(elisp)Multiple displays'. */); |
8a792f3a | 12318 | |
ac09dc1e | 12319 | DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map, |
e93b2956 | 12320 | doc: /* Keymap that translates key sequences to key sequences during input. |
4f4a84ec SM |
12321 | This is used mainly for mapping key sequences into some preferred |
12322 | key events (symbols). | |
f01b6d17 KL |
12323 | |
12324 | The `read-key-sequence' function replaces any subsequence bound by | |
7a81ec10 KL |
12325 | `local-function-key-map' with its binding. More precisely, when the |
12326 | active keymaps have no binding for the current key sequence but | |
12327 | `local-function-key-map' binds a suffix of the sequence to a vector or | |
12328 | string, `read-key-sequence' replaces the matching suffix with its | |
12329 | binding, and continues with the new sequence. | |
f01b6d17 | 12330 | |
feba0cd6 KL |
12331 | If the binding is a function, it is called with one argument (the prompt) |
12332 | and its return value (a key sequence) is used. | |
12333 | ||
7a81ec10 KL |
12334 | The events that come from bindings in `local-function-key-map' are not |
12335 | themselves looked up in `local-function-key-map'. | |
f01b6d17 | 12336 | |
7a81ec10 | 12337 | For example, suppose `local-function-key-map' binds `ESC O P' to [f1]. |
f01b6d17 | 12338 | Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing |
7a81ec10 KL |
12339 | `C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key, |
12340 | typing `ESC O P x' would return [f1 x]. | |
f01b6d17 | 12341 | |
6ed8eeff | 12342 | `local-function-key-map' has a separate binding for each terminal |
7a81ec10 | 12343 | device. See Info node `(elisp)Multiple displays'. If you need to |
6ed8eeff | 12344 | define a binding on all terminals, change `function-key-map' |
7a81ec10 | 12345 | instead. Initially, `local-function-key-map' is an empty keymap that |
6ed8eeff | 12346 | has `function-key-map' as its parent on all terminal devices. */); |
f01b6d17 | 12347 | |
4f4a84ec SM |
12348 | DEFVAR_KBOARD ("input-decode-map", Vinput_decode_map, |
12349 | doc: /* Keymap that decodes input escape sequences. | |
12350 | This is used mainly for mapping ASCII function key sequences into | |
12351 | real Emacs function key events (symbols). | |
12352 | ||
12353 | The `read-key-sequence' function replaces any subsequence bound by | |
9d0644c4 | 12354 | `input-decode-map' with its binding. Contrary to `function-key-map', |
4f4a84ec SM |
12355 | this map applies its rebinding regardless of the presence of an ordinary |
12356 | binding. So it is more like `key-translation-map' except that it applies | |
12357 | before `function-key-map' rather than after. | |
12358 | ||
12359 | If the binding is a function, it is called with one argument (the prompt) | |
12360 | and its return value (a key sequence) is used. | |
12361 | ||
12362 | The events that come from bindings in `input-decode-map' are not | |
12363 | themselves looked up in `input-decode-map'. | |
12364 | ||
12365 | This variable is keyboard-local. */); | |
12366 | ||
ac09dc1e KL |
12367 | DEFVAR_LISP ("function-key-map", &Vfunction_key_map, |
12368 | doc: /* The parent keymap of all `local-function-key-map' instances. | |
6ed8eeff | 12369 | Function key definitions that apply to all terminal devices should go |
7a81ec10 KL |
12370 | here. If a mapping is defined in both the current |
12371 | `local-function-key-map' binding and this variable, then the local | |
12372 | definition will take precendence. */); | |
ac09dc1e | 12373 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
033b73e2 | 12374 | |
4f4a84ec SM |
12375 | DEFVAR_LISP ("key-translation-map", &Vkey_translation_map, |
12376 | doc: /* Keymap of key translations that can override keymaps. | |
4ea81208 KL |
12377 | This keymap works like `function-key-map', but comes after that, |
12378 | and its non-prefix bindings override ordinary bindings. | |
4f4a84ec | 12379 | Another difference is that it is global rather than keyboard-local. */); |
ac09dc1e | 12380 | Vkey_translation_map = Fmake_sparse_keymap (Qnil); |
8a792f3a RS |
12381 | |
12382 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
12383 | doc: /* List of deferred actions to be performed at a later time. |
12384 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
12385 | Vdeferred_action_list = Qnil; |
12386 | ||
12387 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
12388 | doc: /* Function to call to handle deferred actions, after each command. |
12389 | This function is called with no arguments after each command | |
12390 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 12391 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
12392 | |
12393 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
12394 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
12395 | The value can be a length of time to show the message for. | |
12396 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 12397 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 12398 | |
c04cbc3b | 12399 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 12400 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 12401 | Vtimer_list = Qnil; |
d9d4c147 KH |
12402 | |
12403 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 12404 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 12405 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
12406 | |
12407 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
12408 | doc: /* If non-nil, the function that implements the current input method. |
12409 | It's called with one argument, a printing character that was just read. | |
12410 | \(That means a character with code 040...0176.) | |
12411 | Typically this function uses `read-event' to read additional events. | |
12412 | When it does so, it should first bind `input-method-function' to nil | |
12413 | so it will not be called recursively. | |
12414 | ||
12415 | The function should return a list of zero or more events | |
12416 | to be used as input. If it wants to put back some events | |
12417 | to be reconsidered, separately, by the input method, | |
12418 | it can add them to the beginning of `unread-command-events'. | |
12419 | ||
f761d6b6 | 12420 | The input method function can find in `input-method-previous-message' |
4707d2d0 PJ |
12421 | the previous echo area message. |
12422 | ||
12423 | The input method function should refer to the variables | |
12424 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
12425 | for guidance on what to do. */); | |
7d18f9ae | 12426 | Vinput_method_function = Qnil; |
d5eecefb RS |
12427 | |
12428 | DEFVAR_LISP ("input-method-previous-message", | |
12429 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
12430 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
12431 | This variable exists because `read-event' clears the echo area | |
12432 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 12433 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
12434 | |
12435 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
12436 | doc: /* If non-nil, the function that implements the display of help. |
12437 | It's called with one argument, the help string to display. */); | |
7ee32cda | 12438 | Vshow_help_function = Qnil; |
adf5cb9c KH |
12439 | |
12440 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
12441 | doc: /* If non-nil, suppress point adjustment after executing a command. |
12442 | ||
12443 | After a command is executed, if point is moved into a region that has | |
12444 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
12445 | the boundary of the region. But, when a command sets this variable to |
12446 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
12447 | |
12448 | This variable is set to nil before reading a command, and is checked | |
12449 | just after executing the command. */); | |
adf5cb9c KH |
12450 | Vdisable_point_adjustment = Qnil; |
12451 | ||
12452 | DEFVAR_LISP ("global-disable-point-adjustment", | |
12453 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
12454 | doc: /* *If non-nil, always suppress point adjustment. |
12455 | ||
12456 | The default value is nil, in which case, point adjustment are | |
12457 | suppressed only after special commands that set | |
12458 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 12459 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 12460 | |
00392ce6 | 12461 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, |
4707d2d0 PJ |
12462 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
12463 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 12464 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da KS |
12465 | |
12466 | DEFVAR_LISP ("throw-on-input", &Vthrow_on_input, | |
12467 | doc: /* If non-nil, any keyboard input throws to this symbol. | |
12468 | The value of that variable is passed to `quit-flag' and later causes a | |
12469 | peculiar kind of quitting. */); | |
12470 | Vthrow_on_input = Qnil; | |
9d56e0da | 12471 | |
04d8c47d RS |
12472 | DEFVAR_LISP ("command-error-function", &Vcommand_error_function, |
12473 | doc: /* If non-nil, function to output error messages. | |
12474 | The arguments are the error data, a list of the form | |
12475 | (SIGNALED-CONDITIONS . SIGNAL-DATA) | |
12476 | such as just as `condition-case' would bind its variable to, | |
12477 | the context (a string which normally goes at the start of the message), | |
12478 | and the Lisp function within which the error was signaled. */); | |
12479 | Vcommand_error_function = Qnil; | |
12480 | ||
9d56e0da EZ |
12481 | DEFVAR_LISP ("enable-disabled-menus-and-buttons", |
12482 | &Venable_disabled_menus_and_buttons, | |
12483 | doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar. | |
12484 | ||
12485 | Help functions bind this to allow help on disabled menu items | |
12486 | and tool-bar buttons. */); | |
12487 | Venable_disabled_menus_and_buttons = Qnil; | |
1bc973c2 | 12488 | |
1bc973c2 SM |
12489 | /* Create the initial keyboard. */ |
12490 | initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); | |
12491 | init_kboard (initial_kboard); | |
12492 | /* Vwindow_system is left at t for now. */ | |
12493 | initial_kboard->next_kboard = all_kboards; | |
12494 | all_kboards = initial_kboard; | |
284f4730 JB |
12495 | } |
12496 | ||
dfcf069d | 12497 | void |
284f4730 JB |
12498 | keys_of_keyboard () |
12499 | { | |
12500 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
12501 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
12502 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
12503 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
12504 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
12505 | |
12506 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
12507 | "handle-delete-frame"); | |
8612b71a AR |
12508 | initial_define_lispy_key (Vspecial_event_map, "ns-put-working-text", |
12509 | "ns-put-working-text"); | |
12510 | initial_define_lispy_key (Vspecial_event_map, "ns-unput-working-text", | |
12511 | "ns-unput-working-text"); | |
a18bf897 SM |
12512 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
12513 | current-prefix-arg, as is done in `handle-switch-frame'. | |
12514 | But `handle-switch-frame is not run from the special-map. | |
12515 | Commands from that map are run in a special way that automatically | |
12516 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
12517 | redundant but harmful: | |
12518 | - C-u C-x v = | |
12519 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
12520 | - after the first prompt, the exit-minibuffer-hook is run which may | |
12521 | iconify a frame and thus push a `iconify-frame' event. | |
12522 | - after running exit-minibuffer-hook, current-prefix-arg is | |
12523 | restored to the non-nil value it had before the prompt. | |
12524 | - we enter the second prompt. | |
12525 | current-prefix-arg is non-nil, prefix-arg is nil. | |
12526 | - before running the first real event, we run the special iconify-frame | |
12527 | event, but we pass the `special' arg to execute-command so | |
12528 | current-prefix-arg and prefix-arg are left untouched. | |
12529 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
12530 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 12531 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 12532 | "ignore"); |
7f07d5ca | 12533 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 12534 | "ignore"); |
a4e19f6e SM |
12535 | /* Handling it at such a low-level causes read_key_sequence to get |
12536 | * confused because it doesn't realize that the current_buffer was | |
12537 | * changed by read_char. | |
6b61353c | 12538 | * |
a4e19f6e SM |
12539 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
12540 | * "handle-select-window"); */ | |
4ebc27a5 JD |
12541 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
12542 | "handle-save-session"); | |
033b73e2 MA |
12543 | |
12544 | #ifdef HAVE_DBUS | |
12545 | /* Define a special event which is raised for dbus callback | |
12546 | functions. */ | |
12547 | initial_define_lispy_key (Vspecial_event_map, "dbus-event", | |
12548 | "dbus-handle-event"); | |
12549 | #endif | |
284f4730 | 12550 | } |
1269a761 SM |
12551 | |
12552 | /* Mark the pointers in the kboard objects. | |
12553 | Called by the Fgarbage_collector. */ | |
12554 | void | |
12555 | mark_kboards () | |
12556 | { | |
12557 | KBOARD *kb; | |
12558 | Lisp_Object *p; | |
12559 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
12560 | { | |
12561 | if (kb->kbd_macro_buffer) | |
12562 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
12563 | mark_object (*p); |
12564 | mark_object (kb->Voverriding_terminal_local_map); | |
12565 | mark_object (kb->Vlast_command); | |
12566 | mark_object (kb->Vreal_last_command); | |
1d33157f | 12567 | mark_object (kb->Vkeyboard_translate_table); |
d0d3a311 | 12568 | mark_object (kb->Vlast_repeatable_command); |
3ebb8729 SM |
12569 | mark_object (kb->Vprefix_arg); |
12570 | mark_object (kb->Vlast_prefix_arg); | |
12571 | mark_object (kb->kbd_queue); | |
12572 | mark_object (kb->defining_kbd_macro); | |
12573 | mark_object (kb->Vlast_kbd_macro); | |
12574 | mark_object (kb->Vsystem_key_alist); | |
12575 | mark_object (kb->system_key_syms); | |
70b8d0a4 | 12576 | mark_object (kb->Vwindow_system); |
4f4a84ec | 12577 | mark_object (kb->Vinput_decode_map); |
ac09dc1e | 12578 | mark_object (kb->Vlocal_function_key_map); |
3ebb8729 SM |
12579 | mark_object (kb->Vdefault_minibuffer_frame); |
12580 | mark_object (kb->echo_string); | |
1269a761 SM |
12581 | } |
12582 | { | |
12583 | struct input_event *event; | |
12584 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
12585 | { | |
12586 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
12587 | event = kbd_buffer; | |
e3f6e7c7 KS |
12588 | if (event->kind != SELECTION_REQUEST_EVENT |
12589 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
12590 | { |
12591 | mark_object (event->x); | |
12592 | mark_object (event->y); | |
12593 | } | |
3ebb8729 SM |
12594 | mark_object (event->frame_or_window); |
12595 | mark_object (event->arg); | |
1269a761 SM |
12596 | } |
12597 | } | |
12598 | } | |
6b61353c KH |
12599 | |
12600 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
12601 | (do not change this comment) */ |