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> |
9628b887 | 24 | #include "lisp.h" |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
428a555e | 27 | #include "frame.h" |
284f4730 JB |
28 | #include "termhooks.h" |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.h" |
284f4730 JB |
31 | #include "window.h" |
32 | #include "commands.h" | |
33 | #include "buffer.h" | |
8b461910 | 34 | #include "character.h" |
284f4730 | 35 | #include "disptab.h" |
f4255cd1 | 36 | #include "dispextern.h" |
e39da3d7 | 37 | #include "syntax.h" |
497ba7a1 | 38 | #include "intervals.h" |
bdb7aa47 | 39 | #include "keymap.h" |
9ac0d9e0 | 40 | #include "blockinput.h" |
e8886a1d | 41 | #include "puresize.h" |
8a9f5d3c GM |
42 | #include "systime.h" |
43 | #include "atimer.h" | |
284f4730 JB |
44 | #include <setjmp.h> |
45 | #include <errno.h> | |
46 | ||
aa477689 JD |
47 | #ifdef HAVE_GTK_AND_PTHREAD |
48 | #include <pthread.h> | |
49 | #endif | |
80e4aa30 RS |
50 | #ifdef MSDOS |
51 | #include "msdos.h" | |
52 | #include <time.h> | |
53 | #else /* not MSDOS */ | |
284f4730 | 54 | #include <sys/ioctl.h> |
80e4aa30 | 55 | #endif /* not MSDOS */ |
284f4730 | 56 | |
52baf19e | 57 | #include "syssignal.h" |
52baf19e | 58 | |
03cee6ae GM |
59 | #include <sys/types.h> |
60 | #ifdef HAVE_UNISTD_H | |
61 | #include <unistd.h> | |
62 | #endif | |
63 | ||
e31d908f DN |
64 | #ifdef HAVE_FCNTL_H |
65 | #include <fcntl.h> | |
66 | #endif | |
67 | ||
c5e3b6c5 RS |
68 | /* This is to get the definitions of the XK_ symbols. */ |
69 | #ifdef HAVE_X_WINDOWS | |
70 | #include "xterm.h" | |
71 | #endif | |
72 | ||
e98a93eb GV |
73 | #ifdef HAVE_NTGUI |
74 | #include "w32term.h" | |
75 | #endif /* HAVE_NTGUI */ | |
76 | ||
edfda783 AR |
77 | #ifdef HAVE_NS |
78 | #include "nsterm.h" | |
edfda783 AR |
79 | #endif |
80 | ||
02639609 | 81 | #ifndef USE_CRT_DLL |
52baf19e | 82 | extern int errno; |
02639609 | 83 | #endif |
52baf19e | 84 | |
9ac0d9e0 JB |
85 | /* Variables for blockinput.h: */ |
86 | ||
87 | /* Non-zero if interrupt input is blocked right now. */ | |
cf2db145 | 88 | volatile int interrupt_input_blocked; |
9ac0d9e0 JB |
89 | |
90 | /* Nonzero means an input interrupt has arrived | |
91 | during the current critical section. */ | |
63927c41 | 92 | int interrupt_input_pending; |
9ac0d9e0 | 93 | |
ceb18827 CY |
94 | /* This var should be (interrupt_input_pending || pending_atimers). |
95 | The QUIT macro checks this instead of interrupt_input_pending and | |
96 | pending_atimers separately, to reduce code size. So, any code that | |
97 | changes interrupt_input_pending or pending_atimers should update | |
98 | this too. */ | |
07a1e794 | 99 | #ifdef SYNC_INPUT |
ceb18827 | 100 | int pending_signals; |
07a1e794 | 101 | #endif |
ceb18827 | 102 | |
de11c1ea | 103 | #define KBD_BUFFER_SIZE 4096 |
284f4730 | 104 | |
c5fdd383 KH |
105 | KBOARD *initial_kboard; |
106 | KBOARD *current_kboard; | |
107 | KBOARD *all_kboards; | |
1e8bd3da | 108 | int single_kboard; |
612b78ef | 109 | |
284f4730 | 110 | /* Non-nil disable property on a command means |
971e4c98 LT |
111 | do not execute it; call disabled-command-function's value instead. */ |
112 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 | 113 | |
0721f230 | 114 | #define NUM_RECENT_KEYS (300) |
284f4730 JB |
115 | int recent_keys_index; /* Index for storing next element into recent_keys */ |
116 | int total_keys; /* Total number of elements stored into recent_keys */ | |
0721f230 | 117 | Lisp_Object recent_keys; /* Vector holds the last NUM_RECENT_KEYS keystrokes */ |
284f4730 | 118 | |
6569cc8d JB |
119 | /* Vector holding the key sequence that invoked the current command. |
120 | It is reused for each command, and it may be longer than the current | |
121 | sequence; this_command_key_count indicates how many elements | |
122 | actually mean something. | |
123 | It's easier to staticpro a single Lisp_Object than an array. */ | |
124 | Lisp_Object this_command_keys; | |
125 | int this_command_key_count; | |
284f4730 | 126 | |
63020c46 RS |
127 | /* 1 after calling Freset_this_command_lengths. |
128 | Usually it is 0. */ | |
129 | int this_command_key_count_reset; | |
130 | ||
7d18f9ae RS |
131 | /* This vector is used as a buffer to record the events that were actually read |
132 | by read_key_sequence. */ | |
133 | Lisp_Object raw_keybuf; | |
134 | int raw_keybuf_count; | |
135 | ||
025ae953 CY |
136 | /* Non-nil if the present key sequence was obtained by shift translation. */ |
137 | Lisp_Object Vthis_command_keys_shift_translated; | |
138 | ||
7d18f9ae | 139 | #define GROW_RAW_KEYBUF \ |
7189cad8 | 140 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
6bf377e2 | 141 | raw_keybuf = larger_vector (raw_keybuf, raw_keybuf_count * 2, Qnil) \ |
7d18f9ae | 142 | |
6321824f RS |
143 | /* Number of elements of this_command_keys |
144 | that precede this key sequence. */ | |
145 | int this_single_command_key_start; | |
146 | ||
71918b75 RS |
147 | /* Record values of this_command_key_count and echo_length () |
148 | before this command was read. */ | |
149 | static int before_command_key_count; | |
150 | static int before_command_echo_length; | |
71918b75 | 151 | |
284f4730 JB |
152 | extern int minbuf_level; |
153 | ||
a59b172a RS |
154 | extern int message_enable_multibyte; |
155 | ||
7ee32cda GM |
156 | /* If non-nil, the function that implements the display of help. |
157 | It's called with one argument, the help string to display. */ | |
158 | ||
159 | Lisp_Object Vshow_help_function; | |
160 | ||
284f4730 | 161 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 162 | |
284f4730 JB |
163 | static int menu_prompting; |
164 | ||
165 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 166 | |
284f4730 JB |
167 | static Lisp_Object menu_prompt_more_char; |
168 | ||
169 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 170 | |
284f4730 JB |
171 | static jmp_buf getcjmp; |
172 | ||
173 | /* True while doing kbd input. */ | |
174 | int waiting_for_input; | |
175 | ||
176 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 177 | |
c843d6c6 | 178 | int echoing; |
284f4730 | 179 | |
985f9f66 GM |
180 | /* Non-null means we can start echoing at the next input pause even |
181 | though there is something in the echo area. */ | |
182 | ||
183 | static struct kboard *ok_to_echo_at_next_pause; | |
184 | ||
59a84f8e GM |
185 | /* The kboard last echoing, or null for none. Reset to 0 in |
186 | cancel_echoing. If non-null, and a current echo area message | |
187 | exists, and echo_message_buffer is eq to the current message | |
188 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 189 | |
f49aedfd | 190 | struct kboard *echo_kboard; |
1fc93d49 | 191 | |
59a84f8e GM |
192 | /* The buffer used for echoing. Set in echo_now, reset in |
193 | cancel_echoing. */ | |
194 | ||
c843d6c6 | 195 | Lisp_Object echo_message_buffer; |
59a84f8e | 196 | |
03361bcc RS |
197 | /* Nonzero means disregard local maps for the menu bar. */ |
198 | static int inhibit_local_menu_bar_menus; | |
199 | ||
80e4aa30 | 200 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
201 | int immediate_quit; |
202 | ||
04d8c47d RS |
203 | /* The user's hook function for outputting an error message. */ |
204 | Lisp_Object Vcommand_error_function; | |
205 | ||
fa90970d RS |
206 | /* The user's ERASE setting. */ |
207 | Lisp_Object Vtty_erase_char; | |
208 | ||
284f4730 | 209 | /* Character to recognize as the help char. */ |
7e85b935 | 210 | Lisp_Object Vhelp_char; |
284f4730 | 211 | |
ecb7cb34 KH |
212 | /* List of other event types to recognize as meaning "help". */ |
213 | Lisp_Object Vhelp_event_list; | |
214 | ||
284f4730 JB |
215 | /* Form to execute when help char is typed. */ |
216 | Lisp_Object Vhelp_form; | |
217 | ||
7e85b935 RS |
218 | /* Command to run when the help character follows a prefix key. */ |
219 | Lisp_Object Vprefix_help_command; | |
220 | ||
9f9c0e27 RS |
221 | /* List of items that should move to the end of the menu bar. */ |
222 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 223 | |
6526ab49 RS |
224 | /* Non-nil means show the equivalent key-binding for |
225 | any M-x command that has one. | |
226 | The value can be a length of time to show the message for. | |
227 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
228 | Lisp_Object Vsuggest_key_bindings; | |
229 | ||
00392ce6 MB |
230 | /* How long to display an echo-area message when the minibuffer is active. |
231 | If the value is not a number, such messages don't time out. */ | |
232 | Lisp_Object Vminibuffer_message_timeout; | |
233 | ||
284f4730 JB |
234 | /* Character that causes a quit. Normally C-g. |
235 | ||
236 | If we are running on an ordinary terminal, this must be an ordinary | |
237 | ASCII char, since we want to make it our interrupt character. | |
238 | ||
239 | If we are not running on an ordinary terminal, it still needs to be | |
240 | an ordinary ASCII char. This character needs to be recognized in | |
241 | the input interrupt handler. At this point, the keystroke is | |
242 | represented as a struct input_event, while the desired quit | |
243 | character is specified as a lispy event. The mapping from struct | |
244 | input_events to lispy events cannot run in an interrupt handler, | |
245 | and the reverse mapping is difficult for anything but ASCII | |
246 | keystrokes. | |
247 | ||
248 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
249 | ASCII character. */ | |
250 | int quit_char; | |
251 | ||
252 | extern Lisp_Object current_global_map; | |
253 | extern int minibuf_level; | |
254 | ||
9dd3131c RS |
255 | /* If non-nil, this is a map that overrides all other local maps. */ |
256 | Lisp_Object Voverriding_local_map; | |
257 | ||
d0a49716 RS |
258 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
259 | Lisp_Object Voverriding_local_map_menu_flag; | |
260 | ||
7f07d5ca RS |
261 | /* Keymap that defines special misc events that should |
262 | be processed immediately at a low level. */ | |
263 | Lisp_Object Vspecial_event_map; | |
264 | ||
284f4730 JB |
265 | /* Current depth in recursive edits. */ |
266 | int command_loop_level; | |
267 | ||
268 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 269 | EMACS_INT num_input_keys; |
284f4730 | 270 | |
4b09796d GM |
271 | /* Last input event read as a command. */ |
272 | Lisp_Object last_command_event; | |
284f4730 | 273 | |
7d6de002 RS |
274 | /* Last input character read as a command, not counting menus |
275 | reached by the mouse. */ | |
276 | Lisp_Object last_nonmenu_event; | |
277 | ||
4b09796d GM |
278 | /* Last input event read for any purpose. */ |
279 | Lisp_Object last_input_event; | |
284f4730 | 280 | |
dbc4e1c1 | 281 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 282 | Lisp_Object Vunread_command_events; |
284f4730 | 283 | |
7d18f9ae RS |
284 | /* If not Qnil, a list of objects to be read as subsequent command input |
285 | including input method processing. */ | |
286 | Lisp_Object Vunread_input_method_events; | |
287 | ||
288 | /* If not Qnil, a list of objects to be read as subsequent command input | |
289 | but NOT including input method processing. */ | |
290 | Lisp_Object Vunread_post_input_method_events; | |
291 | ||
86e5706b | 292 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 293 | EMACS_INT unread_command_char; |
86e5706b | 294 | |
cd21b839 JB |
295 | /* If not Qnil, this is a switch-frame event which we decided to put |
296 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 297 | next command input, after any unread_command_events. |
8f805655 JB |
298 | |
299 | read_key_sequence uses this to delay switch-frame events until the | |
300 | end of the key sequence; Fread_char uses it to put off switch-frame | |
301 | events until a non-ASCII event is acceptable as input. */ | |
302 | Lisp_Object unread_switch_frame; | |
cd21b839 | 303 | |
9fa4395d | 304 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 305 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 306 | |
284f4730 JB |
307 | /* Char to use as prefix when a meta character is typed in. |
308 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
309 | ||
310 | Lisp_Object meta_prefix_char; | |
311 | ||
312 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
313 | static int last_non_minibuf_size; | |
314 | ||
06ef7355 | 315 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
316 | static Lisp_Object Vauto_save_timeout; |
317 | ||
318 | /* Total number of times read_char has returned. */ | |
4abfba1f | 319 | int num_input_events; |
284f4730 | 320 | |
51172b6d | 321 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 322 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 323 | |
284f4730 JB |
324 | /* Auto-save automatically when this many characters have been typed |
325 | since the last time. */ | |
326 | ||
31ade731 | 327 | static EMACS_INT auto_save_interval; |
284f4730 | 328 | |
c43b1734 | 329 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
330 | |
331 | int last_auto_save; | |
332 | ||
284f4730 | 333 | /* The command being executed by the command loop. |
6c7178b9 KH |
334 | Commands may set this, and the value set will be copied into |
335 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
336 | Lisp_Object Vthis_command; |
337 | ||
338 | /* This is like Vthis_command, except that commands never set it. */ | |
339 | Lisp_Object real_this_command; | |
284f4730 | 340 | |
8b9940e6 KS |
341 | /* If the lookup of the command returns a binding, the original |
342 | command is stored in this-original-command. It is nil otherwise. */ | |
343 | Lisp_Object Vthis_original_command; | |
344 | ||
bb0e1d19 | 345 | /* The value of point when the last command was started. */ |
b453f72e KH |
346 | int last_point_position; |
347 | ||
047688cb RS |
348 | /* The buffer that was current when the last command was started. */ |
349 | Lisp_Object last_point_position_buffer; | |
350 | ||
bb0e1d19 RS |
351 | /* The window that was selected when the last command was started. */ |
352 | Lisp_Object last_point_position_window; | |
353 | ||
4c52b668 KH |
354 | /* The frame in which the last input event occurred, or Qmacro if the |
355 | last event came from a macro. We use this to determine when to | |
356 | generate switch-frame events. This may be cleared by functions | |
357 | like Fselect_frame, to make sure that a switch-frame event is | |
358 | generated by the next character. */ | |
359 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
360 | |
361 | /* A user-visible version of the above, intended to allow users to | |
362 | figure out where the last event came from, if the event doesn't | |
363 | carry that information itself (i.e. if it was a character). */ | |
364 | Lisp_Object Vlast_event_frame; | |
365 | ||
1113d9db JB |
366 | /* The timestamp of the last input event we received from the X server. |
367 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
368 | unsigned long last_event_timestamp; |
369 | ||
370 | Lisp_Object Qself_insert_command; | |
371 | Lisp_Object Qforward_char; | |
372 | Lisp_Object Qbackward_char; | |
e58aa385 | 373 | Lisp_Object Qundefined; |
d925fb39 | 374 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
375 | |
376 | /* read_key_sequence stores here the command definition of the | |
377 | key sequence that it reads. */ | |
378 | Lisp_Object read_key_sequence_cmd; | |
379 | ||
39aab679 DL |
380 | /* Echo unfinished commands after this many seconds of pause. */ |
381 | Lisp_Object Vecho_keystrokes; | |
382 | ||
284f4730 JB |
383 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
384 | Lisp_Object Vtop_level; | |
385 | ||
7d18f9ae RS |
386 | /* If non-nil, this implements the current input method. */ |
387 | Lisp_Object Vinput_method_function; | |
388 | Lisp_Object Qinput_method_function; | |
389 | ||
d5eecefb RS |
390 | /* When we call Vinput_method_function, |
391 | this holds the echo area message that was just erased. */ | |
392 | Lisp_Object Vinput_method_previous_message; | |
393 | ||
86e5706b RS |
394 | /* Non-nil means deactivate the mark at end of this command. */ |
395 | Lisp_Object Vdeactivate_mark; | |
5c4cc82a | 396 | Lisp_Object Qdeactivate_mark; |
86e5706b | 397 | |
48e416d4 RS |
398 | /* Menu bar specified in Lucid Emacs fashion. */ |
399 | ||
400 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
401 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
402 | ||
cf24f894 | 403 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 404 | |
86e5706b | 405 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
406 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
407 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 408 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 409 | |
ac09dc1e KL |
410 | /* Parent keymap of terminal-local function-key-map instances. */ |
411 | Lisp_Object Vfunction_key_map; | |
412 | ||
4f4a84ec | 413 | /* Keymap of key translations that can override keymaps. */ |
ac09dc1e | 414 | Lisp_Object Vkey_translation_map; |
4ea81208 | 415 | |
8a792f3a RS |
416 | /* List of deferred actions to be performed at a later time. |
417 | The precise format isn't relevant here; we just check whether it is nil. */ | |
418 | Lisp_Object Vdeferred_action_list; | |
419 | ||
420 | /* Function to call to handle deferred actions, when there are any. */ | |
421 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 422 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 423 | |
d5eecefb RS |
424 | Lisp_Object Qinput_method_exit_on_first_char; |
425 | Lisp_Object Qinput_method_use_echo_area; | |
426 | ||
284f4730 JB |
427 | /* File in which we write all commands we read. */ |
428 | FILE *dribble; | |
429 | ||
430 | /* Nonzero if input is available. */ | |
431 | int input_pending; | |
432 | ||
284f4730 JB |
433 | extern char *pending_malloc_warning; |
434 | ||
beecf6a1 | 435 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 436 | |
beecf6a1 KH |
437 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
438 | ||
beecf6a1 KH |
439 | /* Pointer to next available character in kbd_buffer. |
440 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 441 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
442 | next available char is in kbd_buffer[0]. */ |
443 | static struct input_event *kbd_fetch_ptr; | |
444 | ||
445 | /* Pointer to next place to store character in kbd_buffer. This | |
446 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
447 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 448 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
449 | |
450 | /* The above pair of variables forms a "queue empty" flag. When we | |
451 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
452 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
e0f24100 | 453 | there is input available if the two pointers are not equal. |
beecf6a1 KH |
454 | |
455 | Why not just have a flag set and cleared by the enqueuing and | |
456 | dequeuing functions? Such a flag could be screwed up by interrupts | |
457 | at inopportune times. */ | |
458 | ||
f3253854 | 459 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
460 | mouse moves, and motion events will appear in the input stream. |
461 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 462 | Lisp_Object do_mouse_tracking; |
284f4730 | 463 | |
284f4730 JB |
464 | /* Symbols to head events. */ |
465 | Lisp_Object Qmouse_movement; | |
3c370943 | 466 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 467 | Lisp_Object Qswitch_frame; |
bbdc2092 | 468 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
469 | Lisp_Object Qiconify_frame; |
470 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 471 | Lisp_Object Qselect_window; |
7ee32cda | 472 | Lisp_Object Qhelp_echo; |
cd21b839 | 473 | |
ae372f41 | 474 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
475 | Lisp_Object Qmouse_fixup_help_message; |
476 | #endif | |
477 | ||
284f4730 JB |
478 | /* Symbols to denote kinds of events. */ |
479 | Lisp_Object Qfunction_key; | |
480 | Lisp_Object Qmouse_click; | |
9e2a2647 | 481 | #if defined (WINDOWSNT) |
1161d367 | 482 | Lisp_Object Qlanguage_change; |
07de30b9 | 483 | #endif |
a24dc617 | 484 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 | 485 | Lisp_Object Qsave_session; |
033b73e2 MA |
486 | #ifdef HAVE_DBUS |
487 | Lisp_Object Qdbus_event; | |
488 | #endif | |
284f4730 | 489 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
490 | |
491 | /* Properties of event headers. */ | |
492 | Lisp_Object Qevent_kind; | |
88cb0656 | 493 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 494 | |
e8886a1d RS |
495 | /* menu item parts */ |
496 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 497 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
498 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
499 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
500 | extern Lisp_Object Vdefine_key_rebound_commands; |
501 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 502 | |
0a7f1fc0 JB |
503 | /* An event header symbol HEAD may have a property named |
504 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
505 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
506 | mask of modifiers applied to it. If present, this is used to help | |
507 | speed up parse_modifiers. */ | |
508 | Lisp_Object Qevent_symbol_element_mask; | |
509 | ||
510 | /* An unmodified event header BASE may have a property named | |
511 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
512 | modified versions of BASE. If present, this helps speed up | |
513 | apply_modifiers. */ | |
514 | Lisp_Object Qmodifier_cache; | |
515 | ||
5ec75a55 | 516 | /* Symbols to use for parts of windows. */ |
284f4730 | 517 | Lisp_Object Qmode_line; |
e5d77022 | 518 | Lisp_Object Qvertical_line; |
3c370943 | 519 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 520 | Lisp_Object Qmenu_bar; |
7d60ad8a | 521 | extern Lisp_Object Qleft_margin, Qright_margin; |
6b61353c KH |
522 | extern Lisp_Object Qleft_fringe, Qright_fringe; |
523 | extern Lisp_Object QCmap; | |
5ec75a55 | 524 | |
f4255cd1 JB |
525 | Lisp_Object recursive_edit_unwind (), command_loop (); |
526 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 527 | Lisp_Object Qextended_command_history; |
c04cbc3b | 528 | EMACS_TIME timer_check (); |
284f4730 | 529 | |
a0acc6c7 | 530 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 531 | |
2c834fb3 KH |
532 | extern char *x_get_keysym_name (); |
533 | ||
8eb4d8ef | 534 | static void record_menu_key (); |
22b94eeb | 535 | static int echo_length (); |
8eb4d8ef | 536 | |
f4eef8b4 RS |
537 | Lisp_Object Qpolling_period; |
538 | ||
d9d4c147 | 539 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
540 | Lisp_Object Vtimer_list; |
541 | ||
d9d4c147 KH |
542 | /* List of idle time timers. Appears in order of next scheduled event. */ |
543 | Lisp_Object Vtimer_idle_list; | |
544 | ||
87dd9b9b RS |
545 | /* Incremented whenever a timer is run. */ |
546 | int timers_run; | |
547 | ||
a9f16aa9 KH |
548 | extern Lisp_Object Vprint_level, Vprint_length; |
549 | ||
ffd56f97 JB |
550 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
551 | happens. */ | |
552 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
553 | |
554 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
555 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
556 | int interrupt_input; | |
557 | ||
558 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
559 | int interrupts_deferred; | |
560 | ||
284f4730 JB |
561 | /* Allow m- file to inhibit use of FIONREAD. */ |
562 | #ifdef BROKEN_FIONREAD | |
563 | #undef FIONREAD | |
564 | #endif | |
565 | ||
566 | /* We are unable to use interrupts if FIONREAD is not available, | |
567 | so flush SIGIO so we won't try. */ | |
fc7a70cc | 568 | #if !defined (FIONREAD) |
284f4730 JB |
569 | #ifdef SIGIO |
570 | #undef SIGIO | |
571 | #endif | |
572 | #endif | |
573 | ||
e98a93eb | 574 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 575 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 576 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
577 | #define POLL_FOR_INPUT |
578 | #endif | |
adf5cb9c KH |
579 | |
580 | /* After a command is executed, if point is moved into a region that | |
581 | has specific properties (e.g. composition, display), we adjust | |
582 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 583 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 584 | variable is set to nil before reading a command. */ |
da8f7368 | 585 | |
adf5cb9c KH |
586 | Lisp_Object Vdisable_point_adjustment; |
587 | ||
588 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 589 | |
adf5cb9c KH |
590 | Lisp_Object Vglobal_disable_point_adjustment; |
591 | ||
fdbb67fe GM |
592 | /* The time when Emacs started being idle. */ |
593 | ||
594 | static EMACS_TIME timer_idleness_start_time; | |
595 | ||
3021d3a9 RS |
596 | /* After Emacs stops being idle, this saves the last value |
597 | of timer_idleness_start_time from when it was idle. */ | |
598 | ||
599 | static EMACS_TIME timer_last_idleness_start_time; | |
600 | ||
9d56e0da EZ |
601 | /* If non-nil, events produced by disabled menu items and tool-bar |
602 | buttons are not ignored. Help functions bind this to allow help on | |
603 | those items and buttons. */ | |
604 | Lisp_Object Venable_disabled_menus_and_buttons; | |
605 | ||
284f4730 JB |
606 | \f |
607 | /* Global variable declarations. */ | |
608 | ||
a2d5fca0 JD |
609 | /* Flags for readable_events. */ |
610 | #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0) | |
611 | #define READABLE_EVENTS_FILTER_EVENTS (1 << 1) | |
612 | #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2) | |
613 | ||
284f4730 JB |
614 | /* Function for init_keyboard to call with no args (if nonzero). */ |
615 | void (*keyboard_init_hook) (); | |
616 | ||
0bbfdc25 GM |
617 | static int read_avail_input P_ ((int)); |
618 | static void get_input_pending P_ ((int *, int)); | |
619 | static int readable_events P_ ((int)); | |
620 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
621 | Lisp_Object, int *)); | |
8150596a | 622 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
623 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
624 | Lisp_Object *)); | |
625 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
ae372f41 | 626 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
0bbfdc25 GM |
627 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
628 | enum scroll_bar_part, | |
629 | Lisp_Object, Lisp_Object, | |
630 | unsigned long)); | |
514354e9 | 631 | #endif |
0bbfdc25 GM |
632 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
633 | Lisp_Object, char **, | |
634 | Lisp_Object *, unsigned)); | |
635 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
0bbfdc25 | 636 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 637 | static void save_getcjmp (); |
0bbfdc25 | 638 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 639 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 640 | static void clear_event P_ ((struct input_event *)); |
9148bda2 | 641 | static Lisp_Object restore_kboard_configuration P_ ((Lisp_Object)); |
5598c32e | 642 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
114a8b8c | 643 | static void handle_interrupt P_ ((void)); |
5c12e63f KS |
644 | static void timer_start_idle P_ ((void)); |
645 | static void timer_stop_idle P_ ((void)); | |
646 | static void timer_resume_idle P_ ((void)); | |
23479b40 YM |
647 | static SIGTYPE handle_user_signal P_ ((int)); |
648 | static char *find_user_signal_name P_ ((int)); | |
649 | static int store_user_signal_events P_ ((void)); | |
284f4730 | 650 | |
8026024c KH |
651 | /* Nonzero means don't try to suspend even if the operating system seems |
652 | to support it. */ | |
653 | static int cannot_suspend; | |
12679e05 CY |
654 | |
655 | extern Lisp_Object Qidentity, Qonly; | |
29204e13 | 656 | \f |
284f4730 JB |
657 | /* Install the string STR as the beginning of the string of echoing, |
658 | so that it serves as a prompt for the next character. | |
659 | Also start echoing. */ | |
660 | ||
dfcf069d | 661 | void |
284f4730 | 662 | echo_prompt (str) |
a4ef85ee | 663 | Lisp_Object str; |
284f4730 | 664 | { |
678e9d18 | 665 | current_kboard->echo_string = str; |
0d121f7c | 666 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 667 | echo_now (); |
284f4730 JB |
668 | } |
669 | ||
df0f2ba1 | 670 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
671 | C can be a character, which is printed prettily ("M-C-x" and all that |
672 | jazz), or a symbol, whose name is printed. */ | |
673 | ||
dfcf069d | 674 | void |
284f4730 JB |
675 | echo_char (c) |
676 | Lisp_Object c; | |
677 | { | |
c5fdd383 | 678 | if (current_kboard->immediate_echo) |
284f4730 | 679 | { |
678e9d18 GM |
680 | int size = KEY_DESCRIPTION_SIZE + 100; |
681 | char *buffer = (char *) alloca (size); | |
682 | char *ptr = buffer; | |
683 | Lisp_Object echo_string; | |
284f4730 | 684 | |
0d121f7c | 685 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 686 | |
284f4730 | 687 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 688 | c = EVENT_HEAD (c); |
284f4730 | 689 | |
8c18cbfb | 690 | if (INTEGERP (c)) |
284f4730 | 691 | { |
678e9d18 | 692 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 693 | } |
8c18cbfb | 694 | else if (SYMBOLP (c)) |
284f4730 | 695 | { |
1b049b51 KR |
696 | Lisp_Object name = SYMBOL_NAME (c); |
697 | int nbytes = SBYTES (name); | |
c60ee5e7 | 698 | |
0d121f7c | 699 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
700 | { |
701 | int offset = ptr - buffer; | |
0d121f7c | 702 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
703 | buffer = (char *) alloca (size); |
704 | ptr = buffer + offset; | |
705 | } | |
706 | ||
1b049b51 KR |
707 | ptr += copy_text (SDATA (name), ptr, nbytes, |
708 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
709 | } |
710 | ||
0d121f7c | 711 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 712 | && help_char_p (c)) |
284f4730 | 713 | { |
678e9d18 GM |
714 | const char *text = " (Type ? for further options)"; |
715 | int len = strlen (text); | |
c60ee5e7 | 716 | |
678e9d18 GM |
717 | if (size - (ptr - buffer) < len) |
718 | { | |
719 | int offset = ptr - buffer; | |
720 | size += len; | |
721 | buffer = (char *) alloca (size); | |
722 | ptr = buffer + offset; | |
723 | } | |
724 | ||
725 | bcopy (text, ptr, len); | |
726 | ptr += len; | |
284f4730 JB |
727 | } |
728 | ||
0d121f7c GM |
729 | /* Replace a dash from echo_dash with a space, otherwise |
730 | add a space at the end as a separator between keys. */ | |
678e9d18 | 731 | if (STRINGP (echo_string) |
2ff4d3d9 | 732 | && SCHARS (echo_string) > 1) |
0d121f7c | 733 | { |
2ff4d3d9 RS |
734 | Lisp_Object last_char, prev_char, idx; |
735 | ||
736 | idx = make_number (SCHARS (echo_string) - 2); | |
737 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
738 | |
739 | idx = make_number (SCHARS (echo_string) - 1); | |
740 | last_char = Faref (echo_string, idx); | |
741 | ||
2ff4d3d9 RS |
742 | /* We test PREV_CHAR to make sure this isn't the echoing |
743 | of a minus-sign. */ | |
744 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
745 | Faset (echo_string, idx, make_number (' ')); |
746 | else | |
747 | echo_string = concat2 (echo_string, build_string (" ")); | |
748 | } | |
c3be81c7 RS |
749 | else if (STRINGP (echo_string)) |
750 | echo_string = concat2 (echo_string, build_string (" ")); | |
678e9d18 GM |
751 | |
752 | current_kboard->echo_string | |
753 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 754 | |
3dbd9ee4 | 755 | echo_now (); |
284f4730 JB |
756 | } |
757 | } | |
758 | ||
759 | /* Temporarily add a dash to the end of the echo string if it's not | |
760 | empty, so that it serves as a mini-prompt for the very next character. */ | |
761 | ||
dfcf069d | 762 | void |
284f4730 JB |
763 | echo_dash () |
764 | { | |
678e9d18 GM |
765 | /* Do nothing if not echoing at all. */ |
766 | if (NILP (current_kboard->echo_string)) | |
767 | return; | |
768 | ||
c5fdd383 | 769 | if (!current_kboard->immediate_echo |
0d121f7c | 770 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 771 | return; |
c60ee5e7 | 772 | |
7a80a6f6 | 773 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 774 | if (current_kboard->echo_after_prompt |
0d121f7c | 775 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 776 | return; |
c60ee5e7 | 777 | |
366511da MB |
778 | /* Do nothing if we have already put a dash at the end. */ |
779 | if (SCHARS (current_kboard->echo_string) > 1) | |
780 | { | |
c3be81c7 | 781 | Lisp_Object last_char, prev_char, idx; |
366511da | 782 | |
c3be81c7 RS |
783 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); |
784 | prev_char = Faref (current_kboard->echo_string, idx); | |
366511da | 785 | |
c3be81c7 RS |
786 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); |
787 | last_char = Faref (current_kboard->echo_string, idx); | |
366511da | 788 | |
c3be81c7 RS |
789 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') |
790 | return; | |
366511da MB |
791 | } |
792 | ||
284f4730 JB |
793 | /* Put a dash at the end of the buffer temporarily, |
794 | but make it go away when the next character is added. */ | |
678e9d18 GM |
795 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
796 | build_string ("-")); | |
3dbd9ee4 | 797 | echo_now (); |
284f4730 JB |
798 | } |
799 | ||
800 | /* Display the current echo string, and begin echoing if not already | |
801 | doing so. */ | |
802 | ||
07a59269 | 803 | void |
3dbd9ee4 | 804 | echo_now () |
284f4730 | 805 | { |
c5fdd383 | 806 | if (!current_kboard->immediate_echo) |
284f4730 JB |
807 | { |
808 | int i; | |
c5fdd383 | 809 | current_kboard->immediate_echo = 1; |
284f4730 JB |
810 | |
811 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
812 | { |
813 | Lisp_Object c; | |
22b94eeb RS |
814 | |
815 | /* Set before_command_echo_length to the value that would | |
816 | have been saved before the start of this subcommand in | |
817 | command_loop_1, if we had already been echoing then. */ | |
818 | if (i == this_single_command_key_start) | |
819 | before_command_echo_length = echo_length (); | |
820 | ||
d0a57728 RS |
821 | c = XVECTOR (this_command_keys)->contents[i]; |
822 | if (! (EVENT_HAS_PARAMETERS (c) | |
823 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
824 | echo_char (c); | |
825 | } | |
22b94eeb RS |
826 | |
827 | /* Set before_command_echo_length to the value that would | |
828 | have been saved before the start of this subcommand in | |
829 | command_loop_1, if we had already been echoing then. */ | |
830 | if (this_command_key_count == this_single_command_key_start) | |
831 | before_command_echo_length = echo_length (); | |
832 | ||
833 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
834 | echo_dash (); |
835 | } | |
836 | ||
837 | echoing = 1; | |
678e9d18 | 838 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 839 | SBYTES (current_kboard->echo_string), |
d5db4077 | 840 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
841 | echoing = 0; |
842 | ||
59a84f8e GM |
843 | /* Record in what buffer we echoed, and from which kboard. */ |
844 | echo_message_buffer = echo_area_buffer[0]; | |
845 | echo_kboard = current_kboard; | |
846 | ||
284f4730 JB |
847 | if (waiting_for_input && !NILP (Vquit_flag)) |
848 | quit_throw_to_read_char (); | |
849 | } | |
850 | ||
851 | /* Turn off echoing, for the start of a new command. */ | |
852 | ||
dfcf069d | 853 | void |
284f4730 JB |
854 | cancel_echoing () |
855 | { | |
c5fdd383 | 856 | current_kboard->immediate_echo = 0; |
c5fdd383 | 857 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 858 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
859 | ok_to_echo_at_next_pause = NULL; |
860 | echo_kboard = NULL; | |
861 | echo_message_buffer = Qnil; | |
284f4730 JB |
862 | } |
863 | ||
864 | /* Return the length of the current echo string. */ | |
865 | ||
866 | static int | |
867 | echo_length () | |
868 | { | |
678e9d18 | 869 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 870 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 871 | : 0); |
284f4730 JB |
872 | } |
873 | ||
874 | /* Truncate the current echo message to its first LEN chars. | |
875 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 876 | switches frames while entering a key sequence. */ |
284f4730 JB |
877 | |
878 | static void | |
678e9d18 GM |
879 | echo_truncate (nchars) |
880 | int nchars; | |
881 | { | |
882 | if (STRINGP (current_kboard->echo_string)) | |
883 | current_kboard->echo_string | |
884 | = Fsubstring (current_kboard->echo_string, | |
885 | make_number (0), make_number (nchars)); | |
886 | truncate_echo_area (nchars); | |
284f4730 JB |
887 | } |
888 | ||
889 | \f | |
890 | /* Functions for manipulating this_command_keys. */ | |
891 | static void | |
892 | add_command_key (key) | |
893 | Lisp_Object key; | |
894 | { | |
22b94eeb RS |
895 | #if 0 /* Not needed after we made Freset_this_command_lengths |
896 | do the job immediately. */ | |
71918b75 RS |
897 | /* If reset-this-command-length was called recently, obey it now. |
898 | See the doc string of that function for an explanation of why. */ | |
899 | if (before_command_restore_flag) | |
900 | { | |
901 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
902 | if (this_command_key_count < this_single_command_key_start) |
903 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
904 | echo_truncate (before_command_echo_length_1); |
905 | before_command_restore_flag = 0; | |
906 | } | |
22b94eeb | 907 | #endif |
71918b75 | 908 | |
f4e05d97 GM |
909 | if (this_command_key_count >= ASIZE (this_command_keys)) |
910 | this_command_keys = larger_vector (this_command_keys, | |
911 | 2 * ASIZE (this_command_keys), | |
912 | Qnil); | |
6569cc8d | 913 | |
b1ebcadb | 914 | ASET (this_command_keys, this_command_key_count, key); |
f4e05d97 | 915 | ++this_command_key_count; |
284f4730 | 916 | } |
f4e05d97 | 917 | |
284f4730 JB |
918 | \f |
919 | Lisp_Object | |
920 | recursive_edit_1 () | |
921 | { | |
aed13378 | 922 | int count = SPECPDL_INDEX (); |
284f4730 JB |
923 | Lisp_Object val; |
924 | ||
925 | if (command_loop_level > 0) | |
926 | { | |
927 | specbind (Qstandard_output, Qt); | |
928 | specbind (Qstandard_input, Qt); | |
929 | } | |
930 | ||
d148e14d | 931 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f | 932 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 933 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
934 | can take some time. Do not check for display_hourglass_p here, |
935 | because it could already be nil. */ | |
526a058f | 936 | cancel_hourglass (); |
84265027 GM |
937 | #endif |
938 | ||
980a2d69 GM |
939 | /* This function may have been called from a debugger called from |
940 | within redisplay, for instance by Edebugging a function called | |
941 | from fontification-functions. We want to allow redisplay in | |
942 | the debugging session. | |
943 | ||
944 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
945 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
946 | recursive edit, the original redisplay leading to the recursive | |
947 | edit will be unwound. The outcome should therefore be safe. */ | |
948 | specbind (Qinhibit_redisplay, Qnil); | |
949 | redisplaying_p = 0; | |
950 | ||
284f4730 JB |
951 | val = command_loop (); |
952 | if (EQ (val, Qt)) | |
953 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
954 | /* Handle throw from read_minibuf when using minibuffer |
955 | while it's active but we're in another window. */ | |
956 | if (STRINGP (val)) | |
43cae48c | 957 | xsignal1 (Qerror, val); |
284f4730 | 958 | |
cb5df6ae | 959 | return unbind_to (count, Qnil); |
284f4730 JB |
960 | } |
961 | ||
962 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 963 | |
07a59269 | 964 | void |
284f4730 JB |
965 | record_auto_save () |
966 | { | |
c43b1734 | 967 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 968 | } |
5846638c RS |
969 | |
970 | /* Make an auto save happen as soon as possible at command level. */ | |
971 | ||
dfcf069d | 972 | void |
5846638c RS |
973 | force_auto_save_soon () |
974 | { | |
975 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
976 | |
977 | record_asynch_buffer_change (); | |
5846638c | 978 | } |
284f4730 | 979 | \f |
284f4730 | 980 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
981 | doc: /* Invoke the editor command loop recursively. |
982 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
983 | that tells this function to return. | |
6e604a9b | 984 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 PJ |
985 | This function is called by the editor initialization to begin editing. */) |
986 | () | |
284f4730 | 987 | { |
aed13378 | 988 | int count = SPECPDL_INDEX (); |
9ce50b1e | 989 | Lisp_Object buffer; |
284f4730 | 990 | |
96edd5d4 KS |
991 | /* If we enter while input is blocked, don't lock up here. |
992 | This may happen through the debugger during redisplay. */ | |
993 | if (INPUT_BLOCKED_P) | |
994 | return Qnil; | |
995 | ||
284f4730 JB |
996 | command_loop_level++; |
997 | update_mode_lines = 1; | |
998 | ||
9ce50b1e GM |
999 | if (command_loop_level |
1000 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1001 | buffer = Fcurrent_buffer (); | |
1002 | else | |
1003 | buffer = Qnil; | |
1004 | ||
1005 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1006 | like it is done in the splash screen display, we have to | |
1007 | make sure that we restore single_kboard as command_loop_1 | |
1008 | would have done if it were left normally. */ | |
b3e6f69c KL |
1009 | if (command_loop_level > 0) |
1010 | temporarily_switch_to_single_kboard (SELECTED_FRAME ()); | |
256c9c3a | 1011 | record_unwind_protect (recursive_edit_unwind, buffer); |
9ce50b1e | 1012 | |
284f4730 JB |
1013 | recursive_edit_1 (); |
1014 | return unbind_to (count, Qnil); | |
1015 | } | |
1016 | ||
1017 | Lisp_Object | |
256c9c3a KL |
1018 | recursive_edit_unwind (buffer) |
1019 | Lisp_Object buffer; | |
284f4730 | 1020 | { |
256c9c3a KL |
1021 | if (BUFFERP (buffer)) |
1022 | Fset_buffer (buffer); | |
c60ee5e7 | 1023 | |
284f4730 JB |
1024 | command_loop_level--; |
1025 | update_mode_lines = 1; | |
1026 | return Qnil; | |
1027 | } | |
9ce50b1e | 1028 | |
284f4730 | 1029 | \f |
b3e6f69c KL |
1030 | #if 0 /* These two functions are now replaced with |
1031 | temporarily_switch_to_single_kboard. */ | |
604ccd1d | 1032 | static void |
1e8bd3da | 1033 | any_kboard_state () |
604ccd1d | 1034 | { |
1e8bd3da RS |
1035 | #if 0 /* Theory: if there's anything in Vunread_command_events, |
1036 | it will right away be read by read_key_sequence, | |
1037 | and then if we do switch KBOARDS, it will go into the side | |
1038 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1039 | if (CONSP (Vunread_command_events)) |
4524b161 | 1040 | { |
c5fdd383 KH |
1041 | current_kboard->kbd_queue |
1042 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1043 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1044 | } |
604ccd1d | 1045 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1046 | #endif |
1047 | single_kboard = 0; | |
604ccd1d | 1048 | } |
1e8bd3da RS |
1049 | |
1050 | /* Switch to the single-kboard state, making current_kboard | |
1051 | the only KBOARD from which further input is accepted. */ | |
1052 | ||
1053 | void | |
1054 | single_kboard_state () | |
1055 | { | |
1e8bd3da | 1056 | single_kboard = 1; |
1e8bd3da | 1057 | } |
b3e6f69c | 1058 | #endif |
1e8bd3da | 1059 | |
0c1c1b93 RS |
1060 | /* If we're in single_kboard state for kboard KBOARD, |
1061 | get out of it. */ | |
1062 | ||
1063 | void | |
1064 | not_single_kboard_state (kboard) | |
1065 | KBOARD *kboard; | |
1066 | { | |
1067 | if (kboard == current_kboard) | |
1068 | single_kboard = 0; | |
1069 | } | |
1070 | ||
1e8bd3da RS |
1071 | /* Maintain a stack of kboards, so other parts of Emacs |
1072 | can switch temporarily to the kboard of a given frame | |
1073 | and then revert to the previous status. */ | |
1074 | ||
1075 | struct kboard_stack | |
1076 | { | |
1077 | KBOARD *kboard; | |
1078 | struct kboard_stack *next; | |
1079 | }; | |
1080 | ||
1081 | static struct kboard_stack *kboard_stack; | |
1082 | ||
1083 | void | |
256c9c3a KL |
1084 | push_kboard (k) |
1085 | struct kboard *k; | |
1e8bd3da RS |
1086 | { |
1087 | struct kboard_stack *p | |
1088 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1089 | ||
1090 | p->next = kboard_stack; | |
1091 | p->kboard = current_kboard; | |
1092 | kboard_stack = p; | |
1093 | ||
256c9c3a | 1094 | current_kboard = k; |
1e8bd3da RS |
1095 | } |
1096 | ||
1097 | void | |
256c9c3a | 1098 | pop_kboard () |
1e8bd3da | 1099 | { |
6ed8eeff | 1100 | struct terminal *t; |
1e8bd3da | 1101 | struct kboard_stack *p = kboard_stack; |
24f9525b | 1102 | int found = 0; |
6ed8eeff | 1103 | for (t = terminal_list; t; t = t->next_terminal) |
3fb8e5d7 | 1104 | { |
6ed8eeff | 1105 | if (t->kboard == p->kboard) |
3fb8e5d7 KL |
1106 | { |
1107 | current_kboard = p->kboard; | |
24f9525b | 1108 | found = 1; |
3fb8e5d7 KL |
1109 | break; |
1110 | } | |
1111 | } | |
24f9525b | 1112 | if (!found) |
3fb8e5d7 | 1113 | { |
6ed8eeff | 1114 | /* The terminal we remembered has been deleted. */ |
3fb8e5d7 | 1115 | current_kboard = FRAME_KBOARD (SELECTED_FRAME ()); |
b3e6f69c | 1116 | single_kboard = 0; |
3fb8e5d7 | 1117 | } |
1e8bd3da RS |
1118 | kboard_stack = p->next; |
1119 | xfree (p); | |
1120 | } | |
256c9c3a | 1121 | |
b3e6f69c KL |
1122 | /* Switch to single_kboard mode, making current_kboard the only KBOARD |
1123 | from which further input is accepted. If F is non-nil, set its | |
1124 | KBOARD as the current keyboard. | |
1125 | ||
1126 | This function uses record_unwind_protect to return to the previous | |
1127 | state later. | |
1128 | ||
1129 | If Emacs is already in single_kboard mode, and F's keyboard is | |
1130 | locked, then this function will throw an errow. */ | |
256c9c3a KL |
1131 | |
1132 | void | |
b3e6f69c KL |
1133 | temporarily_switch_to_single_kboard (f) |
1134 | struct frame *f; | |
256c9c3a | 1135 | { |
256c9c3a | 1136 | int was_locked = single_kboard; |
24f9525b KL |
1137 | if (was_locked) |
1138 | { | |
b3e6f69c KL |
1139 | if (f != NULL && FRAME_KBOARD (f) != current_kboard) |
1140 | /* We can not switch keyboards while in single_kboard mode. | |
251bc578 KL |
1141 | In rare cases, Lisp code may call `recursive-edit' (or |
1142 | `read-minibuffer' or `y-or-n-p') after it switched to a | |
1143 | locked frame. For example, this is likely to happen | |
1144 | when server.el connects to a new terminal while Emacs is in | |
1145 | single_kboard mode. It is best to throw an error instead | |
1146 | of presenting the user with a frozen screen. */ | |
b3e6f69c KL |
1147 | error ("Terminal %d is locked, cannot read from it", |
1148 | FRAME_TERMINAL (f)->id); | |
24f9525b | 1149 | else |
b3e6f69c KL |
1150 | /* This call is unnecessary, but helps |
1151 | `restore_kboard_configuration' discover if somebody changed | |
1152 | `current_kboard' behind our back. */ | |
24f9525b KL |
1153 | push_kboard (current_kboard); |
1154 | } | |
b3e6f69c KL |
1155 | else if (f != NULL) |
1156 | current_kboard = FRAME_KBOARD (f); | |
1157 | single_kboard = 1; | |
256c9c3a KL |
1158 | record_unwind_protect (restore_kboard_configuration, |
1159 | (was_locked ? Qt : Qnil)); | |
256c9c3a KL |
1160 | } |
1161 | ||
b3e6f69c | 1162 | #if 0 /* This function is not needed anymore. */ |
256c9c3a KL |
1163 | void |
1164 | record_single_kboard_state () | |
1165 | { | |
24f9525b KL |
1166 | if (single_kboard) |
1167 | push_kboard (current_kboard); | |
256c9c3a KL |
1168 | record_unwind_protect (restore_kboard_configuration, |
1169 | (single_kboard ? Qt : Qnil)); | |
1170 | } | |
b3e6f69c | 1171 | #endif |
256c9c3a KL |
1172 | |
1173 | static Lisp_Object | |
1174 | restore_kboard_configuration (was_locked) | |
1175 | Lisp_Object was_locked; | |
1176 | { | |
256c9c3a | 1177 | if (NILP (was_locked)) |
b3e6f69c | 1178 | single_kboard = 0; |
256c9c3a | 1179 | else |
24f9525b | 1180 | { |
b3e6f69c KL |
1181 | struct kboard *prev = current_kboard; |
1182 | single_kboard = 1; | |
24f9525b | 1183 | pop_kboard (); |
b3e6f69c KL |
1184 | /* The pop should not change the kboard. */ |
1185 | if (single_kboard && current_kboard != prev) | |
1186 | abort (); | |
24f9525b | 1187 | } |
256c9c3a KL |
1188 | return Qnil; |
1189 | } | |
e2dc7ae5 | 1190 | |
1e8bd3da RS |
1191 | \f |
1192 | /* Handle errors that are not handled at inner levels | |
1193 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1194 | |
284f4730 JB |
1195 | Lisp_Object |
1196 | cmd_error (data) | |
1197 | Lisp_Object data; | |
a1341f75 | 1198 | { |
a9f16aa9 | 1199 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1200 | char macroerror[50]; |
1201 | ||
d148e14d | 1202 | #ifdef HAVE_WINDOW_SYSTEM |
160552c5 RS |
1203 | if (display_hourglass_p) |
1204 | cancel_hourglass (); | |
1205 | #endif | |
1206 | ||
649d952d | 1207 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 1208 | { |
649d952d | 1209 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
1210 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
1211 | else | |
1212 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 1213 | executing_kbd_macro_iterations); |
e881d8b2 RS |
1214 | } |
1215 | else | |
1216 | *macroerror = 0; | |
a9f16aa9 | 1217 | |
a1341f75 RS |
1218 | Vstandard_output = Qt; |
1219 | Vstandard_input = Qt; | |
ce0d2858 | 1220 | Vexecuting_kbd_macro = Qnil; |
649d952d | 1221 | executing_kbd_macro = Qnil; |
d8bcf58e | 1222 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1223 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1224 | cancel_echoing (); |
a9f16aa9 KH |
1225 | |
1226 | /* Avoid unquittable loop if data contains a circular list. */ | |
1227 | old_level = Vprint_level; | |
1228 | old_length = Vprint_length; | |
0c04a67e RS |
1229 | XSETFASTINT (Vprint_level, 10); |
1230 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1231 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1232 | Vprint_level = old_level; |
1233 | Vprint_length = old_length; | |
a1341f75 RS |
1234 | |
1235 | Vquit_flag = Qnil; | |
1236 | ||
1237 | Vinhibit_quit = Qnil; | |
b3e6f69c | 1238 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
e3ee34f0 RS |
1239 | if (command_loop_level == 0 && minibuf_level == 0) |
1240 | any_kboard_state (); | |
ff4b06d3 | 1241 | #endif |
a1341f75 RS |
1242 | |
1243 | return make_number (0); | |
1244 | } | |
1245 | ||
301738ed RS |
1246 | /* Take actions on handling an error. DATA is the data that describes |
1247 | the error. | |
1248 | ||
1249 | CONTEXT is a C-string containing ASCII characters only which | |
1250 | describes the context in which the error happened. If we need to | |
1251 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1252 | string. */ | |
1253 | ||
07a59269 | 1254 | void |
a1341f75 RS |
1255 | cmd_error_internal (data, context) |
1256 | Lisp_Object data; | |
1257 | char *context; | |
284f4730 | 1258 | { |
788f89eb | 1259 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 1260 | |
04d8c47d RS |
1261 | /* The immediate context is not interesting for Quits, |
1262 | since they are asyncronous. */ | |
1263 | if (EQ (XCAR (data), Qquit)) | |
1264 | Vsignaling_function = Qnil; | |
1265 | ||
284f4730 JB |
1266 | Vquit_flag = Qnil; |
1267 | Vinhibit_quit = Qt; | |
284f4730 | 1268 | |
04d8c47d RS |
1269 | /* Use user's specified output function if any. */ |
1270 | if (!NILP (Vcommand_error_function)) | |
1271 | call3 (Vcommand_error_function, data, | |
fcd69a29 | 1272 | context ? build_string (context) : empty_unibyte_string, |
04d8c47d | 1273 | Vsignaling_function); |
ff11dfa1 | 1274 | /* If the window system or terminal frame hasn't been initialized |
04d8c47d RS |
1275 | yet, or we're not interactive, write the message to stderr and exit. */ |
1276 | else if (!sf->glyphs_initialized_p | |
0dad7c6f JR |
1277 | /* The initial frame is a special non-displaying frame. It |
1278 | will be current in daemon mode when there are no frames | |
1279 | to display, and in non-daemon mode before the real frame | |
1280 | has finished initializing. If an error is thrown in the | |
1281 | latter case while creating the frame, then the frame | |
1282 | will never be displayed, so the safest thing to do is | |
1283 | write to stderr and quit. In daemon mode, there are | |
1284 | many other potential errors that do not prevent frames | |
1285 | from being created, so continuing as normal is better in | |
1286 | that case. */ | |
1287 | || (!IS_DAEMON && FRAME_INITIAL_P (sf)) | |
04d8c47d RS |
1288 | || noninteractive) |
1289 | { | |
1290 | print_error_message (data, Qexternal_debugging_output, | |
1291 | context, Vsignaling_function); | |
1292 | Fterpri (Qexternal_debugging_output); | |
1293 | Fkill_emacs (make_number (-1)); | |
7ee32cda | 1294 | } |
284f4730 JB |
1295 | else |
1296 | { | |
04d8c47d | 1297 | clear_message (1, 0); |
284f4730 | 1298 | Fdiscard_input (); |
dc4854ce | 1299 | message_log_maybe_newline (); |
284f4730 | 1300 | bitch_at_user (); |
c60ee5e7 | 1301 | |
04d8c47d RS |
1302 | print_error_message (data, Qt, context, Vsignaling_function); |
1303 | } | |
a1341f75 | 1304 | |
dc4854ce | 1305 | Vsignaling_function = Qnil; |
284f4730 JB |
1306 | } |
1307 | \f | |
1308 | Lisp_Object command_loop_1 (); | |
1309 | Lisp_Object command_loop_2 (); | |
1310 | Lisp_Object top_level_1 (); | |
1311 | ||
1312 | /* Entry to editor-command-loop. | |
1313 | This level has the catches for exiting/returning to editor command loop. | |
1314 | It returns nil to exit recursive edit, t to abort it. */ | |
1315 | ||
1316 | Lisp_Object | |
1317 | command_loop () | |
1318 | { | |
1319 | if (command_loop_level > 0 || minibuf_level > 0) | |
1320 | { | |
07ba902e RS |
1321 | Lisp_Object val; |
1322 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1323 | executing_kbd_macro = Qnil; |
68c46464 | 1324 | return val; |
284f4730 JB |
1325 | } |
1326 | else | |
1327 | while (1) | |
1328 | { | |
1329 | internal_catch (Qtop_level, top_level_1, Qnil); | |
b3e6f69c | 1330 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c98e2d50 KL |
1331 | /* Reset single_kboard in case top-level set it while |
1332 | evaluating an -f option, or we are stuck there for some | |
1333 | other reason. */ | |
1334 | any_kboard_state (); | |
b3e6f69c | 1335 | #endif |
284f4730 | 1336 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1337 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1338 | |
284f4730 JB |
1339 | /* End of file in -batch run causes exit here. */ |
1340 | if (noninteractive) | |
1341 | Fkill_emacs (Qt); | |
1342 | } | |
1343 | } | |
1344 | ||
1345 | /* Here we catch errors in execution of commands within the | |
1346 | editing loop, and reenter the editing loop. | |
1347 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1348 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1349 | returned due to end of file (or end of kbd macro). */ |
1350 | ||
1351 | Lisp_Object | |
1352 | command_loop_2 () | |
1353 | { | |
1354 | register Lisp_Object val; | |
1355 | ||
1356 | do | |
1357 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1358 | while (!NILP (val)); | |
1359 | ||
1360 | return Qnil; | |
1361 | } | |
1362 | ||
1363 | Lisp_Object | |
1364 | top_level_2 () | |
1365 | { | |
1366 | return Feval (Vtop_level); | |
1367 | } | |
1368 | ||
1369 | Lisp_Object | |
1370 | top_level_1 () | |
1371 | { | |
1372 | /* On entry to the outer level, run the startup file */ | |
1373 | if (!NILP (Vtop_level)) | |
1374 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1375 | else if (!NILP (Vpurify_flag)) | |
1376 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1377 | else | |
1378 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1379 | return Qnil; | |
1380 | } | |
1381 | ||
1382 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
9252e0c0 CY |
1383 | doc: /* Exit all recursive editing levels. |
1384 | This also exits all active minibuffers. */) | |
4707d2d0 | 1385 | () |
284f4730 | 1386 | { |
d148e14d | 1387 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
1388 | if (display_hourglass_p) |
1389 | cancel_hourglass (); | |
2c9cf2c8 | 1390 | #endif |
96edd5d4 | 1391 | |
a25e44b2 JD |
1392 | /* Unblock input if we enter with input blocked. This may happen if |
1393 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1394 | while (INPUT_BLOCKED_P) | |
1395 | UNBLOCK_INPUT; | |
1396 | ||
8c907a56 | 1397 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1398 | } |
1399 | ||
1400 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1401 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1402 | () | |
284f4730 JB |
1403 | { |
1404 | if (command_loop_level > 0 || minibuf_level > 0) | |
1405 | Fthrow (Qexit, Qnil); | |
1406 | ||
1407 | error ("No recursive edit is in progress"); | |
8c907a56 | 1408 | return Qnil; |
284f4730 JB |
1409 | } |
1410 | ||
1411 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1412 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1413 | () | |
284f4730 JB |
1414 | { |
1415 | if (command_loop_level > 0 || minibuf_level > 0) | |
1416 | Fthrow (Qexit, Qt); | |
1417 | ||
1418 | error ("No recursive edit is in progress"); | |
8c907a56 | 1419 | return Qnil; |
284f4730 JB |
1420 | } |
1421 | \f | |
ae372f41 | 1422 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c5b76d6c CY |
1423 | |
1424 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use | |
1425 | of this function. */ | |
1426 | ||
1427 | static Lisp_Object | |
1428 | tracking_off (old_value) | |
1429 | Lisp_Object old_value; | |
1430 | { | |
1431 | do_mouse_tracking = old_value; | |
1432 | if (NILP (old_value)) | |
1433 | { | |
1434 | /* Redisplay may have been preempted because there was input | |
1435 | available, and it assumes it will be called again after the | |
1436 | input has been processed. If the only input available was | |
1437 | the sort that we have just disabled, then we need to call | |
1438 | redisplay. */ | |
1439 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) | |
1440 | { | |
1441 | redisplay_preserve_echo_area (6); | |
1442 | get_input_pending (&input_pending, | |
1443 | READABLE_EVENTS_DO_TIMERS_NOW); | |
1444 | } | |
1445 | } | |
1446 | return Qnil; | |
1447 | } | |
1448 | ||
1449 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
1450 | doc: /* Evaluate BODY with mouse movement events enabled. | |
1451 | Within a `track-mouse' form, mouse motion generates input events that | |
1452 | you can read with `read-event'. | |
1453 | Normally, mouse motion is ignored. | |
d514369d | 1454 | usage: (track-mouse BODY...) */) |
c5b76d6c CY |
1455 | (args) |
1456 | Lisp_Object args; | |
1457 | { | |
1458 | int count = SPECPDL_INDEX (); | |
1459 | Lisp_Object val; | |
1460 | ||
1461 | record_unwind_protect (tracking_off, do_mouse_tracking); | |
1462 | ||
1463 | do_mouse_tracking = Qt; | |
1464 | ||
1465 | val = Fprogn (args); | |
1466 | return unbind_to (count, val); | |
1467 | } | |
1468 | ||
1469 | /* If mouse has moved on some frame, return one of those frames. | |
3b0cdcef KS |
1470 | |
1471 | Return 0 otherwise. | |
1472 | ||
1473 | If ignore_mouse_drag_p is non-zero, ignore (implicit) mouse movement | |
1474 | after resizing the tool-bar window. */ | |
1475 | ||
1476 | int ignore_mouse_drag_p; | |
c5b76d6c CY |
1477 | |
1478 | static FRAME_PTR | |
1479 | some_mouse_moved () | |
1480 | { | |
1481 | Lisp_Object tail, frame; | |
1482 | ||
3b0cdcef KS |
1483 | if (ignore_mouse_drag_p) |
1484 | { | |
e2bb07db | 1485 | /* ignore_mouse_drag_p = 0; */ |
3b0cdcef KS |
1486 | return 0; |
1487 | } | |
1488 | ||
c5b76d6c CY |
1489 | FOR_EACH_FRAME (tail, frame) |
1490 | { | |
1491 | if (XFRAME (frame)->mouse_moved) | |
1492 | return XFRAME (frame); | |
1493 | } | |
1494 | ||
1495 | return 0; | |
1496 | } | |
1497 | ||
ae372f41 | 1498 | #endif /* HAVE_MOUSE || HAVE_GPM */ |
c5b76d6c | 1499 | \f |
284f4730 JB |
1500 | /* This is the actual command reading loop, |
1501 | sans error-handling encapsulation. */ | |
1502 | ||
a7b772c1 GM |
1503 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1504 | int, int, int)); | |
1505 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1506 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1507 | |
0af912f0 JD |
1508 | /* Cancel hourglass from protect_unwind. |
1509 | ARG is not used. */ | |
d148e14d | 1510 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1511 | static Lisp_Object |
1512 | cancel_hourglass_unwind (arg) | |
1513 | Lisp_Object arg; | |
1514 | { | |
1515 | cancel_hourglass (); | |
3a0ae1f3 | 1516 | return Qnil; |
0af912f0 | 1517 | } |
bb8db7e1 | 1518 | #endif |
0af912f0 | 1519 | |
284f4730 JB |
1520 | Lisp_Object |
1521 | command_loop_1 () | |
1522 | { | |
03cee6ae GM |
1523 | Lisp_Object cmd; |
1524 | int lose; | |
284f4730 JB |
1525 | int nonundocount; |
1526 | Lisp_Object keybuf[30]; | |
1527 | int i; | |
a53fe666 | 1528 | int prev_modiff = 0; |
8c907a56 | 1529 | struct buffer *prev_buffer = NULL; |
b3e6f69c | 1530 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
1e8bd3da | 1531 | int was_locked = single_kboard; |
033b73e2 | 1532 | #endif |
80d4c824 | 1533 | int already_adjusted = 0; |
284f4730 | 1534 | |
d9b641bb | 1535 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1536 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1537 | Vdeactivate_mark = Qnil; |
284f4730 | 1538 | waiting_for_input = 0; |
df0f2ba1 | 1539 | cancel_echoing (); |
284f4730 | 1540 | |
284f4730 | 1541 | nonundocount = 0; |
284f4730 | 1542 | this_command_key_count = 0; |
63020c46 | 1543 | this_command_key_count_reset = 0; |
6321824f | 1544 | this_single_command_key_start = 0; |
284f4730 | 1545 | |
325309f5 | 1546 | if (NILP (Vmemory_full)) |
59aadc81 | 1547 | { |
10ffcb64 RS |
1548 | /* Make sure this hook runs after commands that get errors and |
1549 | throw to top level. */ | |
1550 | /* Note that the value cell will never directly contain nil | |
1551 | if the symbol is a local variable. */ | |
1552 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1553 | safe_run_hooks (Qpost_command_hook); | |
1554 | ||
1555 | /* If displaying a message, resize the echo area window to fit | |
1556 | that message's size exactly. */ | |
1557 | if (!NILP (echo_area_buffer[0])) | |
1558 | resize_echo_area_exactly (); | |
1559 | ||
1560 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1561 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1562 | } |
1563 | ||
51d5a2c9 | 1564 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1565 | current_kboard->Vlast_command = Vthis_command; |
1566 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1567 | if (!CONSP (last_command_event)) |
d0d3a311 | 1568 | current_kboard->Vlast_repeatable_command = real_this_command; |
51d5a2c9 | 1569 | |
284f4730 JB |
1570 | while (1) |
1571 | { | |
788f89eb | 1572 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1573 | Fkill_emacs (Qnil); |
1574 | ||
284f4730 JB |
1575 | /* Make sure the current window's buffer is selected. */ |
1576 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1577 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1578 | ||
1579 | /* Display any malloc warning that just came out. Use while because | |
1580 | displaying one warning can cause another. */ | |
1581 | ||
1582 | while (pending_malloc_warning) | |
1583 | display_malloc_warning (); | |
1584 | ||
86e5706b RS |
1585 | Vdeactivate_mark = Qnil; |
1586 | ||
284f4730 | 1587 | /* If minibuffer on and echo area in use, |
00392ce6 | 1588 | wait a short time and redraw minibuffer. */ |
284f4730 | 1589 | |
7ee32cda | 1590 | if (minibuf_level |
985f9f66 | 1591 | && !NILP (echo_area_buffer[0]) |
6a8128ef CY |
1592 | && EQ (minibuf_window, echo_area_window) |
1593 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1594 | { |
f1bed6d8 RS |
1595 | /* Bind inhibit-quit to t so that C-g gets read in |
1596 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1597 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1598 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1599 | |
6a8128ef | 1600 | sit_for (Vminibuffer_message_timeout, 0, 2); |
666dc232 | 1601 | |
e6aa7813 | 1602 | /* Clear the echo area. */ |
301738ed | 1603 | message2 (0, 0, 0); |
cdb9d665 | 1604 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1605 | |
db08707d RS |
1606 | unbind_to (count, Qnil); |
1607 | ||
e6aa7813 | 1608 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1609 | if (!NILP (Vquit_flag)) |
1610 | { | |
1611 | Vquit_flag = Qnil; | |
24597608 | 1612 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1613 | } |
1614 | } | |
1615 | ||
8f805655 | 1616 | #if 0 |
8f805655 JB |
1617 | /* Select the frame that the last event came from. Usually, |
1618 | switch-frame events will take care of this, but if some lisp | |
1619 | code swallows a switch-frame event, we'll fix things up here. | |
1620 | Is this a good idea? */ | |
8c18cbfb | 1621 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1622 | && !EQ (internal_last_event_frame, selected_frame)) |
e630dfc6 | 1623 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1624 | #endif |
48e416d4 RS |
1625 | /* If it has changed current-menubar from previous value, |
1626 | really recompute the menubar from the value. */ | |
a646e520 RS |
1627 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1628 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1629 | call0 (Qrecompute_lucid_menubar); |
1630 | ||
71918b75 RS |
1631 | before_command_key_count = this_command_key_count; |
1632 | before_command_echo_length = echo_length (); | |
1633 | ||
d5eecefb RS |
1634 | Vthis_command = Qnil; |
1635 | real_this_command = Qnil; | |
9d138659 | 1636 | Vthis_original_command = Qnil; |
025ae953 | 1637 | Vthis_command_keys_shift_translated = Qnil; |
d7437ef6 | 1638 | |
8f805655 | 1639 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1640 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1641 | Qnil, 0, 1, 1); |
8f805655 | 1642 | |
6fac1409 | 1643 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1644 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1645 | Fkill_emacs (Qnil); |
6fac1409 RS |
1646 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1647 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1648 | ||
8f805655 JB |
1649 | ++num_input_keys; |
1650 | ||
284f4730 JB |
1651 | /* Now we have read a key sequence of length I, |
1652 | or else I is 0 and we found end of file. */ | |
1653 | ||
1654 | if (i == 0) /* End of file -- happens only in */ | |
1655 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1656 | /* -1 means read_key_sequence got a menu that was rejected. |
1657 | Just loop around and read another command. */ | |
1658 | if (i == -1) | |
1659 | { | |
1660 | cancel_echoing (); | |
1661 | this_command_key_count = 0; | |
63020c46 | 1662 | this_command_key_count_reset = 0; |
6321824f | 1663 | this_single_command_key_start = 0; |
ff4b06d3 | 1664 | goto finalize; |
dcc408a0 | 1665 | } |
284f4730 | 1666 | |
4b09796d | 1667 | last_command_event = keybuf[i - 1]; |
284f4730 | 1668 | |
75c0b143 RS |
1669 | /* If the previous command tried to force a specific window-start, |
1670 | forget about that, in case this command moves point far away | |
c422836d KH |
1671 | from that position. But also throw away beg_unchanged and |
1672 | end_unchanged information in that case, so that redisplay will | |
1673 | update the whole window properly. */ | |
1674 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1675 | { | |
9351ebd0 | 1676 | struct buffer *b; |
c422836d | 1677 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1678 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1679 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1680 | } |
75c0b143 | 1681 | |
284f4730 | 1682 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1683 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1684 | { |
1685 | if (!NILP (Vquit_flag)) | |
1686 | { | |
ce0d2858 | 1687 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1688 | QUIT; /* Make some noise. */ |
1689 | /* Will return since macro now empty. */ | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1694 | cases identified below. */ |
86e5706b RS |
1695 | prev_buffer = current_buffer; |
1696 | prev_modiff = MODIFF; | |
8746da95 | 1697 | last_point_position = PT; |
bb0e1d19 | 1698 | last_point_position_window = selected_window; |
18cd2eeb | 1699 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1700 | |
adf5cb9c KH |
1701 | /* By default, we adjust point to a boundary of a region that |
1702 | has such a property that should be treated intangible | |
1703 | (e.g. composition, display). But, some commands will set | |
1704 | this variable differently. */ | |
1705 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1706 | |
be2488ca GM |
1707 | /* Process filters and timers may have messed with deactivate-mark. |
1708 | reset it before we execute the command. */ | |
1709 | Vdeactivate_mark = Qnil; | |
1710 | ||
8b9940e6 KS |
1711 | /* Remap command through active keymaps */ |
1712 | Vthis_original_command = cmd; | |
a34cb674 | 1713 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1714 | { |
1715 | Lisp_Object cmd1; | |
9be34f7f | 1716 | if (cmd1 = Fcommand_remapping (cmd, Qnil, Qnil), !NILP (cmd1)) |
8b9940e6 KS |
1717 | cmd = cmd1; |
1718 | } | |
1719 | ||
284f4730 JB |
1720 | /* Execute the command. */ |
1721 | ||
d5eecefb RS |
1722 | Vthis_command = cmd; |
1723 | real_this_command = cmd; | |
a98ea3f9 RS |
1724 | /* Note that the value cell will never directly contain nil |
1725 | if the symbol is a local variable. */ | |
e98a93eb | 1726 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1727 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1728 | |
2764bebd RS |
1729 | already_adjusted = 0; |
1730 | ||
d5eecefb | 1731 | if (NILP (Vthis_command)) |
284f4730 JB |
1732 | { |
1733 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1734 | Lisp_Object keys = Fvector (i, keybuf); |
1735 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1736 | bitch_at_user (); |
1bf0e604 | 1737 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1738 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1739 | update_mode_lines = 1; |
d8bcf58e | 1740 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1741 | } |
1742 | else | |
1743 | { | |
6d0867e5 | 1744 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1745 | { |
75045dcb RS |
1746 | /* In case we jump to directly_done. */ |
1747 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1748 | ||
284f4730 JB |
1749 | /* Recognize some common commands in common situations and |
1750 | do them directly. */ | |
025ae953 CY |
1751 | if (EQ (Vthis_command, Qforward_char) && PT < ZV |
1752 | && NILP (Vthis_command_keys_shift_translated) | |
1753 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1754 | { |
51ad8a68 | 1755 | struct Lisp_Char_Table *dp |
284f4730 | 1756 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1757 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1758 | SET_PT (PT + 1); |
d86ba5c5 RS |
1759 | if (! NILP (Vpost_command_hook)) |
1760 | /* Put this before calling adjust_point_for_property | |
1761 | so it will only get called once in any case. */ | |
1762 | goto directly_done; | |
22b94eeb RS |
1763 | if (current_buffer == prev_buffer |
1764 | && last_point_position != PT | |
1765 | && NILP (Vdisable_point_adjustment) | |
1766 | && NILP (Vglobal_disable_point_adjustment)) | |
1767 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1768 | already_adjusted = 1; |
1769 | if (PT == last_point_position + 1 | |
1770 | && (dp | |
1771 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1772 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1773 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1774 | && (lose >= 0x20 && lose < 0x7f))) | |
1775 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1776 | /* To extract the case of continuation on |
1777 | wide-column characters. */ | |
8b461910 | 1778 | && ASCII_BYTE_P (lose) |
284f4730 JB |
1779 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1780 | >= MODIFF) | |
598ba4c7 RS |
1781 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1782 | >= OVERLAY_MODIFF) | |
284f4730 | 1783 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1784 | == PT - 1) |
284f4730 JB |
1785 | && !windows_or_buffers_changed |
1786 | && EQ (current_buffer->selective_display, Qnil) | |
1787 | && !detect_input_pending () | |
962ae636 | 1788 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1789 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1790 | direct_output_forward_char (1); |
284f4730 JB |
1791 | goto directly_done; |
1792 | } | |
025ae953 CY |
1793 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV |
1794 | && NILP (Vthis_command_keys_shift_translated) | |
1795 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1796 | { |
51ad8a68 | 1797 | struct Lisp_Char_Table *dp |
284f4730 | 1798 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1799 | SET_PT (PT - 1); |
aaf35234 | 1800 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1801 | if (! NILP (Vpost_command_hook)) |
1802 | goto directly_done; | |
22b94eeb RS |
1803 | if (current_buffer == prev_buffer |
1804 | && last_point_position != PT | |
1805 | && NILP (Vdisable_point_adjustment) | |
1806 | && NILP (Vglobal_disable_point_adjustment)) | |
1807 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1808 | already_adjusted = 1; |
1809 | if (PT == last_point_position - 1 | |
1810 | && (dp | |
1811 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1812 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1813 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1814 | && (lose >= 0x20 && lose < 0x7f))) | |
1815 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1816 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1817 | >= MODIFF) | |
598ba4c7 RS |
1818 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1819 | >= OVERLAY_MODIFF) | |
284f4730 | 1820 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1821 | == PT + 1) |
284f4730 JB |
1822 | && !windows_or_buffers_changed |
1823 | && EQ (current_buffer->selective_display, Qnil) | |
1824 | && !detect_input_pending () | |
962ae636 | 1825 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1826 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1827 | direct_output_forward_char (-1); |
284f4730 JB |
1828 | goto directly_done; |
1829 | } | |
d5eecefb | 1830 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 | 1831 | /* Try this optimization only on char keystrokes. */ |
4b09796d GM |
1832 | && NATNUMP (last_command_event) |
1833 | && CHAR_VALID_P (XFASTINT (last_command_event), 0)) | |
284f4730 | 1834 | { |
d86ba5c5 RS |
1835 | unsigned int c |
1836 | = translate_char (Vtranslation_table_for_input, | |
4b09796d | 1837 | XFASTINT (last_command_event)); |
fc9cce4e | 1838 | int value; |
ce0d2858 | 1839 | if (NILP (Vexecuting_kbd_macro) |
fc9cce4e | 1840 | && !EQ (minibuf_window, selected_window)) |
284f4730 JB |
1841 | { |
1842 | if (!nonundocount || nonundocount >= 20) | |
1843 | { | |
1844 | Fundo_boundary (); | |
1845 | nonundocount = 0; | |
1846 | } | |
1847 | nonundocount++; | |
1848 | } | |
c60ee5e7 | 1849 | |
fc9cce4e RS |
1850 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1851 | < MODIFF) | |
598ba4c7 RS |
1852 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1853 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1854 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1855 | != PT) | |
4c61f38e | 1856 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1857 | || windows_or_buffers_changed |
1858 | || !EQ (current_buffer->selective_display, Qnil) | |
1859 | || detect_input_pending () | |
962ae636 | 1860 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1861 | || !NILP (Vexecuting_kbd_macro)); |
c60ee5e7 | 1862 | |
fc9cce4e | 1863 | value = internal_self_insert (c, 0); |
7ee32cda | 1864 | |
fc9cce4e RS |
1865 | if (value == 2) |
1866 | nonundocount = 0; | |
1867 | ||
294d643a RS |
1868 | if (! NILP (Vpost_command_hook)) |
1869 | /* Put this before calling adjust_point_for_property | |
1870 | so it will only get called once in any case. */ | |
1871 | goto directly_done; | |
1872 | ||
7ee32cda GM |
1873 | /* VALUE == 1 when AFTER-CHANGE functions are |
1874 | installed which is the case most of the time | |
1875 | because FONT-LOCK installs one. */ | |
1876 | if (!lose && !value) | |
e35b6123 | 1877 | direct_output_for_insert (c); |
284f4730 JB |
1878 | goto directly_done; |
1879 | } | |
1880 | } | |
1881 | ||
1882 | /* Here for a command that isn't executed directly */ | |
1883 | ||
0af912f0 | 1884 | { |
d148e14d | 1885 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1886 | int scount = SPECPDL_INDEX (); |
1887 | ||
1888 | if (display_hourglass_p | |
ce0d2858 | 1889 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1890 | { |
1891 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1892 | start_hourglass (); | |
1893 | } | |
7ee32cda GM |
1894 | #endif |
1895 | ||
0af912f0 JD |
1896 | nonundocount = 0; |
1897 | if (NILP (current_kboard->Vprefix_arg)) | |
1898 | Fundo_boundary (); | |
1899 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 | 1900 | |
d148e14d | 1901 | #ifdef HAVE_WINDOW_SYSTEM |
4fbcc9b1 PJ |
1902 | /* Do not check display_hourglass_p here, because |
1903 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1904 | hourglass cursor anyway. |
1905 | But don't cancel the hourglass within a macro | |
1906 | just because a command in the macro finishes. */ | |
ce0d2858 | 1907 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1908 | unbind_to (scount, Qnil); |
d0c48478 | 1909 | #endif |
0af912f0 | 1910 | } |
284f4730 | 1911 | } |
a764a753 | 1912 | directly_done: ; |
75045dcb | 1913 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1914 | |
84ee6048 RS |
1915 | /* Note that the value cell will never directly contain nil |
1916 | if the symbol is a local variable. */ | |
1917 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1918 | safe_run_hooks (Qpost_command_hook); | |
1919 | ||
8f12e41d GM |
1920 | /* If displaying a message, resize the echo area window to fit |
1921 | that message's size exactly. */ | |
1922 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1923 | resize_echo_area_exactly (); |
8f12e41d | 1924 | |
84ee6048 RS |
1925 | if (!NILP (Vdeferred_action_list)) |
1926 | safe_run_hooks (Qdeferred_action_function); | |
1927 | ||
284f4730 | 1928 | /* If there is a prefix argument, |
6c7178b9 KH |
1929 | 1) We don't want Vlast_command to be ``universal-argument'' |
1930 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1931 | 2) we want to leave echoing on so that the prefix will be |
1932 | echoed as part of this key sequence, so don't call | |
1933 | cancel_echoing, and | |
1934 | 3) we want to leave this_command_key_count non-zero, so that | |
1935 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1936 | not echo it a second time. |
1937 | ||
1938 | If the command didn't actually create a prefix arg, | |
1939 | but is merely a frame event that is transparent to prefix args, | |
1940 | then the above doesn't apply. */ | |
4b09796d | 1941 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_event)) |
284f4730 | 1942 | { |
d5eecefb RS |
1943 | current_kboard->Vlast_command = Vthis_command; |
1944 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1945 | if (!CONSP (last_command_event)) |
d0d3a311 | 1946 | current_kboard->Vlast_repeatable_command = real_this_command; |
284f4730 JB |
1947 | cancel_echoing (); |
1948 | this_command_key_count = 0; | |
63020c46 | 1949 | this_command_key_count_reset = 0; |
6321824f | 1950 | this_single_command_key_start = 0; |
284f4730 | 1951 | } |
86e5706b | 1952 | |
88ce066e | 1953 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b | 1954 | { |
12679e05 CY |
1955 | /* In Emacs 22, setting transient-mark-mode to `only' was a |
1956 | way of turning it on for just one command. This usage is | |
1957 | obsolete, but support it anyway. */ | |
1958 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1959 | Vtransient_mark_mode = Qnil; | |
1960 | else if (EQ (Vtransient_mark_mode, Qonly)) | |
1961 | Vtransient_mark_mode = Qidentity; | |
1962 | ||
5c4cc82a SM |
1963 | if (!NILP (Vdeactivate_mark)) |
1964 | call0 (Qdeactivate_mark); | |
86e5706b RS |
1965 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) |
1966 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1967 | } | |
ff4b06d3 KH |
1968 | |
1969 | finalize: | |
adf5cb9c KH |
1970 | |
1971 | if (current_buffer == prev_buffer | |
1972 | && last_point_position != PT | |
1973 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1974 | && NILP (Vglobal_disable_point_adjustment) |
1975 | && !already_adjusted) | |
2a026b04 | 1976 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1977 | |
ff4b06d3 KH |
1978 | /* Install chars successfully executed in kbd macro. */ |
1979 | ||
d8bcf58e KH |
1980 | if (!NILP (current_kboard->defining_kbd_macro) |
1981 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 | 1982 | finalize_kbd_macro_chars (); |
b3e6f69c | 1983 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
604ccd1d | 1984 | if (!was_locked) |
b3e6f69c | 1985 | any_kboard_state (); |
ff4b06d3 | 1986 | #endif |
284f4730 JB |
1987 | } |
1988 | } | |
1c9784c9 | 1989 | |
adf5cb9c KH |
1990 | extern Lisp_Object Qcomposition, Qdisplay; |
1991 | ||
1992 | /* Adjust point to a boundary of a region that has such a property | |
1993 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1994 | `composition', `display' and `invisible' properties. |
1995 | LAST_PT is the last position of point. */ | |
adf5cb9c | 1996 | |
14e40288 SM |
1997 | extern Lisp_Object Qafter_string, Qbefore_string; |
1998 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
1999 | ||
adf5cb9c | 2000 | static void |
2a026b04 | 2001 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 2002 | int last_pt; |
2a026b04 | 2003 | int modified; |
adf5cb9c | 2004 | { |
2b95772c | 2005 | EMACS_INT beg, end; |
7e16ef60 SM |
2006 | Lisp_Object val, overlay, tmp; |
2007 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 2008 | int orig_pt = PT; |
adf5cb9c | 2009 | |
0bbdffbd SM |
2010 | /* FIXME: cycling is probably not necessary because these properties |
2011 | can't be usefully combined anyway. */ | |
7e16ef60 | 2012 | while (check_composition || check_display || check_invisible) |
adf5cb9c | 2013 | { |
5c4cc82a | 2014 | /* FIXME: check `intangible'. */ |
adf5cb9c KH |
2015 | if (check_composition |
2016 | && PT > BEGV && PT < ZV | |
db2f2cdc | 2017 | && (beg = composition_adjust_point (last_pt)) != PT) |
adf5cb9c | 2018 | { |
db2f2cdc | 2019 | SET_PT (beg); |
14e40288 | 2020 | check_display = check_invisible = 1; |
adf5cb9c KH |
2021 | } |
2022 | check_composition = 0; | |
2023 | if (check_display | |
2024 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
2025 | && !NILP (val = get_char_property_and_overlay |
2026 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 2027 | && display_prop_intangible_p (val) |
7e16ef60 SM |
2028 | && (!OVERLAYP (overlay) |
2029 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
2030 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
2031 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
2032 | && (beg < PT /* && end > PT <- It's always the case. */ |
2033 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 2034 | { |
14e40288 | 2035 | xassert (end > PT); |
4ca39724 KS |
2036 | SET_PT (PT < last_pt |
2037 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
2038 | : end); | |
14e40288 | 2039 | check_composition = check_invisible = 1; |
adf5cb9c KH |
2040 | } |
2041 | check_display = 0; | |
14e40288 | 2042 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 2043 | { |
14e40288 SM |
2044 | int inv, ellipsis = 0; |
2045 | beg = end = PT; | |
2046 | ||
2047 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
2048 | while (end < ZV | |
2049 | && !NILP (val = get_char_property_and_overlay | |
2050 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
2051 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2052 | { | |
2053 | ellipsis = ellipsis || inv > 1 | |
2054 | || (OVERLAYP (overlay) | |
2055 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2056 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2057 | tmp = Fnext_single_char_property_change | |
2058 | (make_number (end), Qinvisible, Qnil, Qnil); | |
2059 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
2060 | } | |
2061 | while (beg > BEGV | |
2062 | && !NILP (val = get_char_property_and_overlay | |
2063 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
2064 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2065 | { | |
2066 | ellipsis = ellipsis || inv > 1 | |
2067 | || (OVERLAYP (overlay) | |
2068 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2069 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2070 | tmp = Fprevious_single_char_property_change | |
2071 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
2072 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
2073 | } | |
c60ee5e7 | 2074 | |
14e40288 SM |
2075 | /* Move away from the inside area. */ |
2076 | if (beg < PT && end > PT) | |
2077 | { | |
0bbdffbd SM |
2078 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
2079 | /* We haven't moved yet (so we don't need to fear | |
2080 | infinite-looping) and we were outside the range | |
2081 | before (so either end of the range still corresponds | |
2082 | to a move in the right direction): pretend we moved | |
2083 | less than we actually did, so that we still have | |
2084 | more freedom below in choosing which end of the range | |
2085 | to go to. */ | |
9465a86c | 2086 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
2087 | /* We either have moved already or the last point |
2088 | was already in the range: we don't get to choose | |
2089 | which end of the range we have to go to. */ | |
2090 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
2091 | check_composition = check_display = 1; |
2092 | } | |
6b61353c KH |
2093 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
2094 | the point to something other than its argument, due to | |
2095 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 2096 | xassert (PT == beg || PT == end); |
6b61353c KH |
2097 | #endif |
2098 | ||
2a026b04 KH |
2099 | /* Pretend the area doesn't exist if the buffer is not |
2100 | modified. */ | |
2101 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
2102 | { |
2103 | if (last_pt == beg && PT == end && end < ZV) | |
2104 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
2105 | else if (last_pt == end && PT == beg && beg > BEGV) | |
2106 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
2107 | else if (PT == ((PT < last_pt) ? beg : end)) | |
2108 | /* We've already moved as far as we can. Trying to go | |
2109 | to the other end would mean moving backwards and thus | |
2110 | could lead to an infinite loop. */ | |
2111 | ; | |
2112 | else if (val = get_pos_property (make_number (PT), | |
2113 | Qinvisible, Qnil), | |
2114 | TEXT_PROP_MEANS_INVISIBLE (val) | |
2115 | && (val = get_pos_property | |
2116 | (make_number (PT == beg ? end : beg), | |
2117 | Qinvisible, Qnil), | |
2118 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
2119 | (check_composition = check_display = 1, | |
2120 | SET_PT (PT == beg ? end : beg)); | |
2121 | } | |
7e16ef60 SM |
2122 | } |
2123 | check_invisible = 0; | |
adf5cb9c KH |
2124 | } |
2125 | } | |
2126 | ||
0bc3db2b RS |
2127 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
2128 | ||
2129 | static Lisp_Object | |
2130 | safe_run_hooks_1 (hook) | |
2131 | Lisp_Object hook; | |
2132 | { | |
5e093f44 RS |
2133 | if (NILP (Vrun_hooks)) |
2134 | return Qnil; | |
0bc3db2b RS |
2135 | return call1 (Vrun_hooks, Vinhibit_quit); |
2136 | } | |
2137 | ||
2138 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
2139 | ||
2140 | static Lisp_Object | |
2141 | safe_run_hooks_error (data) | |
2142 | Lisp_Object data; | |
2143 | { | |
adec392e SM |
2144 | Lisp_Object args[3]; |
2145 | args[0] = build_string ("Error in %s: %s"); | |
2146 | args[1] = Vinhibit_quit; | |
2147 | args[2] = data; | |
2148 | Fmessage (3, args); | |
30690496 | 2149 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2150 | } |
2151 | ||
1c9784c9 KH |
2152 | /* If we get an error while running the hook, cause the hook variable |
2153 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2154 | to mysteriously evaporate. */ | |
0bc3db2b | 2155 | |
68f297c5 | 2156 | void |
1c9784c9 | 2157 | safe_run_hooks (hook) |
a98ea3f9 | 2158 | Lisp_Object hook; |
1c9784c9 | 2159 | { |
aed13378 | 2160 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2161 | specbind (Qinhibit_quit, hook); |
2162 | ||
e702932d | 2163 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2164 | |
2165 | unbind_to (count, Qnil); | |
2166 | } | |
8a9f5d3c | 2167 | |
284f4730 | 2168 | \f |
8a9f5d3c GM |
2169 | /* Number of seconds between polling for input. This is a Lisp |
2170 | variable that can be bound. */ | |
2171 | ||
31ade731 | 2172 | EMACS_INT polling_period; |
284f4730 | 2173 | |
eb8c3be9 | 2174 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2175 | |
284f4730 JB |
2176 | int poll_suppress_count; |
2177 | ||
8a9f5d3c GM |
2178 | /* Asynchronous timer for polling. */ |
2179 | ||
2180 | struct atimer *poll_timer; | |
2181 | ||
284f4730 | 2182 | |
36922b18 RS |
2183 | #ifdef POLL_FOR_INPUT |
2184 | ||
c96169a0 | 2185 | /* Poll for input, so that we catch a C-g if it comes in. This |
8a9f5d3c GM |
2186 | function is called from x_make_frame_visible, see comment |
2187 | there. */ | |
284f4730 | 2188 | |
8a9f5d3c GM |
2189 | void |
2190 | poll_for_input_1 () | |
284f4730 | 2191 | { |
c96169a0 AR |
2192 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
2193 | doing anything dangerous. */ | |
2194 | #ifdef HAVE_NS | |
2195 | ++handling_signal; | |
2196 | #endif | |
9ac0d9e0 JB |
2197 | if (interrupt_input_blocked == 0 |
2198 | && !waiting_for_input) | |
2199 | read_avail_input (0); | |
c96169a0 AR |
2200 | #ifdef HAVE_NS |
2201 | --handling_signal; | |
2202 | #endif | |
284f4730 JB |
2203 | } |
2204 | ||
8a9f5d3c GM |
2205 | /* Timer callback function for poll_timer. TIMER is equal to |
2206 | poll_timer. */ | |
2207 | ||
2208 | void | |
2209 | poll_for_input (timer) | |
2210 | struct atimer *timer; | |
2211 | { | |
2212 | if (poll_suppress_count == 0) | |
ceb18827 | 2213 | { |
a42bf890 | 2214 | #ifdef SYNC_INPUT |
ceb18827 CY |
2215 | interrupt_input_pending = 1; |
2216 | pending_signals = 1; | |
a42bf890 | 2217 | #else |
ceb18827 | 2218 | poll_for_input_1 (); |
a42bf890 | 2219 | #endif |
ceb18827 | 2220 | } |
8a9f5d3c GM |
2221 | } |
2222 | ||
2223 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2224 | |
2225 | /* Begin signals to poll for input, if they are appropriate. | |
2226 | This function is called unconditionally from various places. */ | |
2227 | ||
07a59269 | 2228 | void |
284f4730 JB |
2229 | start_polling () |
2230 | { | |
2231 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2232 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2233 | but read_socket_hook is not global anymore. Let's pretend that | |
2234 | it's always set. */ | |
2235 | if (!interrupt_input) | |
284f4730 | 2236 | { |
8a9f5d3c GM |
2237 | /* Turn alarm handling on unconditionally. It might have |
2238 | been turned off in process.c. */ | |
2239 | turn_on_atimers (1); | |
c60ee5e7 | 2240 | |
8a9f5d3c GM |
2241 | /* If poll timer doesn't exist, are we need one with |
2242 | a different interval, start a new one. */ | |
2243 | if (poll_timer == NULL | |
2244 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2245 | { |
8a9f5d3c GM |
2246 | EMACS_TIME interval; |
2247 | ||
2248 | if (poll_timer) | |
2249 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2250 | |
8a9f5d3c GM |
2251 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2252 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2253 | poll_for_input, NULL); | |
284f4730 | 2254 | } |
8a9f5d3c GM |
2255 | |
2256 | /* Let the timer's callback function poll for input | |
2257 | if this becomes zero. */ | |
2258 | --poll_suppress_count; | |
284f4730 JB |
2259 | } |
2260 | #endif | |
2261 | } | |
2262 | ||
1d3195db RS |
2263 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2264 | ||
2265 | int | |
2266 | input_polling_used () | |
2267 | { | |
2268 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2269 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2270 | but read_socket_hook is not global anymore. Let's pretend that | |
2271 | it's always set. */ | |
2272 | return !interrupt_input; | |
1d3195db RS |
2273 | #else |
2274 | return 0; | |
2275 | #endif | |
2276 | } | |
2277 | ||
284f4730 JB |
2278 | /* Turn off polling. */ |
2279 | ||
07a59269 | 2280 | void |
284f4730 JB |
2281 | stop_polling () |
2282 | { | |
2283 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2284 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2285 | but read_socket_hook is not global anymore. Let's pretend that | |
2286 | it's always set. */ | |
2287 | if (!interrupt_input) | |
8a9f5d3c | 2288 | ++poll_suppress_count; |
284f4730 JB |
2289 | #endif |
2290 | } | |
fe8aeef3 RS |
2291 | |
2292 | /* Set the value of poll_suppress_count to COUNT | |
2293 | and start or stop polling accordingly. */ | |
2294 | ||
2295 | void | |
2296 | set_poll_suppress_count (count) | |
2297 | int count; | |
2298 | { | |
2299 | #ifdef POLL_FOR_INPUT | |
2300 | if (count == 0 && poll_suppress_count != 0) | |
2301 | { | |
2302 | poll_suppress_count = 1; | |
2303 | start_polling (); | |
2304 | } | |
2305 | else if (count != 0 && poll_suppress_count == 0) | |
2306 | { | |
2307 | stop_polling (); | |
2308 | } | |
2309 | poll_suppress_count = count; | |
2310 | #endif | |
2311 | } | |
f4eef8b4 | 2312 | |
d0a57728 RS |
2313 | /* Bind polling_period to a value at least N. |
2314 | But don't decrease it. */ | |
2315 | ||
07a59269 | 2316 | void |
f4eef8b4 RS |
2317 | bind_polling_period (n) |
2318 | int n; | |
2319 | { | |
2320 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2321 | int new = polling_period; |
2322 | ||
2323 | if (n > new) | |
2324 | new = n; | |
2325 | ||
6fe007f7 | 2326 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2327 | stop_polling (); |
d0a57728 RS |
2328 | specbind (Qpolling_period, make_number (new)); |
2329 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2330 | start_polling (); |
2331 | #endif | |
2332 | } | |
284f4730 | 2333 | \f |
6da3dd3a RS |
2334 | /* Apply the control modifier to CHARACTER. */ |
2335 | ||
faf5e407 JB |
2336 | int |
2337 | make_ctrl_char (c) | |
2338 | int c; | |
2339 | { | |
d205953b JB |
2340 | /* Save the upper bits here. */ |
2341 | int upper = c & ~0177; | |
2342 | ||
a32aad64 KH |
2343 | if (! ASCII_BYTE_P (c)) |
2344 | return c |= ctrl_modifier; | |
2345 | ||
d205953b JB |
2346 | c &= 0177; |
2347 | ||
2348 | /* Everything in the columns containing the upper-case letters | |
2349 | denotes a control character. */ | |
2350 | if (c >= 0100 && c < 0140) | |
2351 | { | |
2352 | int oc = c; | |
2353 | c &= ~0140; | |
2354 | /* Set the shift modifier for a control char | |
2355 | made from a shifted letter. But only for letters! */ | |
2356 | if (oc >= 'A' && oc <= 'Z') | |
2357 | c |= shift_modifier; | |
2358 | } | |
2359 | ||
2360 | /* The lower-case letters denote control characters too. */ | |
2361 | else if (c >= 'a' && c <= 'z') | |
2362 | c &= ~0140; | |
2363 | ||
2364 | /* Include the bits for control and shift | |
2365 | only if the basic ASCII code can't indicate them. */ | |
2366 | else if (c >= ' ') | |
2367 | c |= ctrl_modifier; | |
2368 | ||
2369 | /* Replace the high bits. */ | |
2370 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2371 | |
2372 | return c; | |
2373 | } | |
2374 | ||
bb8c4865 RS |
2375 | /* Display the help-echo property of the character after the mouse pointer. |
2376 | Either show it in the echo area, or call show-help-function to display | |
2377 | it by other means (maybe in a tooltip). | |
d4e68eea | 2378 | |
bb8c4865 | 2379 | If HELP is nil, that means clear the previous help echo. |
d4e68eea | 2380 | |
bb8c4865 RS |
2381 | If HELP is a string, display that string. If HELP is a function, |
2382 | call it with OBJECT and POS as arguments; the function should | |
2383 | return a help string or nil for none. For all other types of HELP, | |
2384 | evaluate it to obtain a string. | |
8dfd92c9 | 2385 | |
2190735a GM |
2386 | WINDOW is the window in which the help was generated, if any. |
2387 | It is nil if not in a window. | |
2388 | ||
5b2ec2d0 GM |
2389 | If OBJECT is a buffer, POS is the position in the buffer where the |
2390 | `help-echo' text property was found. | |
2391 | ||
2392 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2393 | and POS is the position in the overlay's buffer under the mouse. | |
2394 | ||
2395 | If OBJECT is a string (an overlay string or a string displayed with | |
2396 | the `display' property). POS is the position in that string under | |
2397 | the mouse. | |
d4e68eea | 2398 | |
27fd22dc | 2399 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2400 | echo overwrites a keystroke echo currently displayed in the echo |
2401 | area. | |
2402 | ||
8dfd92c9 GM |
2403 | Note: this function may only be called with HELP nil or a string |
2404 | from X code running asynchronously. */ | |
d4e68eea | 2405 | |
31f84d03 | 2406 | void |
2190735a GM |
2407 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2408 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2409 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2410 | { |
8dfd92c9 | 2411 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2412 | { |
8dfd92c9 GM |
2413 | if (FUNCTIONP (help)) |
2414 | { | |
2190735a | 2415 | Lisp_Object args[4]; |
8dfd92c9 | 2416 | args[0] = help; |
2190735a GM |
2417 | args[1] = window; |
2418 | args[2] = object; | |
2419 | args[3] = pos; | |
1db0076e | 2420 | help = safe_call (4, args); |
8dfd92c9 GM |
2421 | } |
2422 | else | |
1db0076e | 2423 | help = safe_eval (help); |
c60ee5e7 | 2424 | |
8dfd92c9 | 2425 | if (!STRINGP (help)) |
d4e68eea | 2426 | return; |
31f84d03 SM |
2427 | } |
2428 | ||
ae372f41 | 2429 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 | 2430 | if (!noninteractive && STRINGP (help)) |
c5b76d6c CY |
2431 | { |
2432 | /* The mouse-fixup-help-message Lisp function can call | |
2433 | mouse_position_hook, which resets the mouse_moved flags. | |
2434 | This causes trouble if we are trying to read a mouse motion | |
2435 | event (i.e., if we are inside a `track-mouse' form), so we | |
2436 | restore the mouse_moved flag. */ | |
2437 | FRAME_PTR f = NILP (do_mouse_tracking) ? NULL : some_mouse_moved (); | |
2438 | help = call1 (Qmouse_fixup_help_message, help); | |
2439 | if (f) | |
2440 | f->mouse_moved = 1; | |
2441 | } | |
c22237f7 KS |
2442 | #endif |
2443 | ||
8dfd92c9 | 2444 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2445 | { |
2446 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2447 | call1 (Vshow_help_function, help); |
5295a500 | 2448 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2449 | } |
31f84d03 SM |
2450 | } |
2451 | ||
faf5e407 JB |
2452 | |
2453 | \f | |
284f4730 JB |
2454 | /* Input of single characters from keyboard */ |
2455 | ||
2456 | Lisp_Object print_help (); | |
2457 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2458 | static void record_char (); |
284f4730 | 2459 | |
638d3da0 CY |
2460 | static Lisp_Object help_form_saved_window_configs; |
2461 | static Lisp_Object | |
63c125ab | 2462 | read_char_help_form_unwind (Lisp_Object arg) |
638d3da0 CY |
2463 | { |
2464 | Lisp_Object window_config = XCAR (help_form_saved_window_configs); | |
2465 | help_form_saved_window_configs = XCDR (help_form_saved_window_configs); | |
2466 | if (!NILP (window_config)) | |
2467 | Fset_window_configuration (window_config); | |
2468 | return Qnil; | |
2469 | } | |
2470 | ||
184c3d81 RS |
2471 | #define STOP_POLLING \ |
2472 | do { if (! polling_stopped_here) stop_polling (); \ | |
2473 | polling_stopped_here = 1; } while (0) | |
2474 | ||
2475 | #define RESUME_POLLING \ | |
2476 | do { if (polling_stopped_here) start_polling (); \ | |
2477 | polling_stopped_here = 0; } while (0) | |
2478 | ||
284f4730 JB |
2479 | /* read a character from the keyboard; call the redisplay if needed */ |
2480 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2481 | -1 means do not do redisplay, but do do autosaving. | |
2482 | 1 means do both. */ | |
2483 | ||
7d6de002 RS |
2484 | /* The arguments MAPS and NMAPS are for menu prompting. |
2485 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2486 | ||
2487 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2488 | the first event of a key sequence (or not reading a key sequence). |
2489 | If PREV_EVENT is t, that is a "magic" value that says | |
2490 | not to run input methods, but in other respects to act as if | |
2491 | not reading a key sequence. | |
7d6de002 | 2492 | |
83d68044 | 2493 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2494 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2495 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 | 2496 | |
9688ff53 | 2497 | Value is -2 when we find input on another keyboard. A second call |
033b73e2 | 2498 | to read_char will read it. |
9688ff53 | 2499 | |
179f689c CY |
2500 | If END_TIME is non-null, it is a pointer to an EMACS_TIME |
2501 | specifying the maximum time to wait until. If no input arrives by | |
2502 | that time, stop waiting and return nil. | |
2503 | ||
dcc408a0 | 2504 | Value is t if we showed a menu and the user rejected it. */ |
7d6de002 | 2505 | |
284f4730 | 2506 | Lisp_Object |
179f689c | 2507 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu, end_time) |
284f4730 | 2508 | int commandflag; |
7d6de002 RS |
2509 | int nmaps; |
2510 | Lisp_Object *maps; | |
2511 | Lisp_Object prev_event; | |
2512 | int *used_mouse_menu; | |
179f689c | 2513 | EMACS_TIME *end_time; |
284f4730 | 2514 | { |
8c907a56 | 2515 | volatile Lisp_Object c; |
092869b9 | 2516 | int count, jmpcount; |
410d4de9 | 2517 | jmp_buf local_getcjmp; |
284f4730 | 2518 | jmp_buf save_jump; |
8c907a56 | 2519 | volatile int key_already_recorded = 0; |
017c7cb6 | 2520 | Lisp_Object tem, save; |
8c907a56 GM |
2521 | volatile Lisp_Object previous_echo_area_message; |
2522 | volatile Lisp_Object also_record; | |
2523 | volatile int reread; | |
d5eecefb | 2524 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2525 | int polling_stopped_here = 0; |
b3e6f69c | 2526 | struct kboard *orig_kboard = current_kboard; |
7c3bc944 | 2527 | |
e4fe371d | 2528 | also_record = Qnil; |
284f4730 | 2529 | |
22b94eeb | 2530 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2531 | before_command_key_count = this_command_key_count; |
2532 | before_command_echo_length = echo_length (); | |
22b94eeb | 2533 | #endif |
ef6661f7 | 2534 | c = Qnil; |
7ee32cda | 2535 | previous_echo_area_message = Qnil; |
71918b75 | 2536 | |
7ee32cda | 2537 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2538 | |
7f07d5ca RS |
2539 | retry: |
2540 | ||
7d18f9ae RS |
2541 | reread = 0; |
2542 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2543 | { |
7539e11f | 2544 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2545 | Vunread_post_input_method_events |
7539e11f | 2546 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2547 | |
2479e91e RS |
2548 | /* Undo what read_char_x_menu_prompt did when it unread |
2549 | additional keys returned by Fx_popup_menu. */ | |
2550 | if (CONSP (c) | |
7539e11f KR |
2551 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2552 | && NILP (XCDR (c))) | |
2553 | c = XCAR (c); | |
2479e91e | 2554 | |
7d18f9ae RS |
2555 | reread = 1; |
2556 | goto reread_first; | |
284f4730 JB |
2557 | } |
2558 | ||
86e5706b RS |
2559 | if (unread_command_char != -1) |
2560 | { | |
18cd2eeb | 2561 | XSETINT (c, unread_command_char); |
86e5706b RS |
2562 | unread_command_char = -1; |
2563 | ||
7d18f9ae RS |
2564 | reread = 1; |
2565 | goto reread_first; | |
2566 | } | |
2567 | ||
2568 | if (CONSP (Vunread_command_events)) | |
2569 | { | |
a41240a3 MR |
2570 | int was_disabled = 0; |
2571 | ||
7539e11f KR |
2572 | c = XCAR (Vunread_command_events); |
2573 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae | 2574 | |
96f4f7ec KS |
2575 | reread = 1; |
2576 | ||
2577 | /* Undo what sit-for did when it unread additional keys | |
2578 | inside universal-argument. */ | |
2579 | ||
2580 | if (CONSP (c) | |
2581 | && EQ (XCAR (c), Qt)) | |
2582 | { | |
2583 | reread = 0; | |
2584 | c = XCDR (c); | |
2585 | } | |
2586 | ||
7d18f9ae RS |
2587 | /* Undo what read_char_x_menu_prompt did when it unread |
2588 | additional keys returned by Fx_popup_menu. */ | |
2589 | if (CONSP (c) | |
f4e05d97 GM |
2590 | && EQ (XCDR (c), Qdisabled) |
2591 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
a41240a3 MR |
2592 | { |
2593 | was_disabled = 1; | |
2594 | c = XCAR (c); | |
2595 | } | |
c60ee5e7 | 2596 | |
d17e49a8 GM |
2597 | /* If the queued event is something that used the mouse, |
2598 | set used_mouse_menu accordingly. */ | |
2599 | if (used_mouse_menu | |
a41240a3 MR |
2600 | /* Also check was_disabled so last-nonmenu-event won't return |
2601 | a bad value when submenus are involved. (Bug#447) */ | |
2602 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar) || was_disabled)) | |
d17e49a8 | 2603 | *used_mouse_menu = 1; |
c60ee5e7 | 2604 | |
7d18f9ae RS |
2605 | goto reread_for_input_method; |
2606 | } | |
2607 | ||
2608 | if (CONSP (Vunread_input_method_events)) | |
2609 | { | |
7539e11f KR |
2610 | c = XCAR (Vunread_input_method_events); |
2611 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2612 | |
2613 | /* Undo what read_char_x_menu_prompt did when it unread | |
2614 | additional keys returned by Fx_popup_menu. */ | |
2615 | if (CONSP (c) | |
7539e11f KR |
2616 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2617 | && NILP (XCDR (c))) | |
2618 | c = XCAR (c); | |
7d18f9ae RS |
2619 | reread = 1; |
2620 | goto reread_for_input_method; | |
86e5706b RS |
2621 | } |
2622 | ||
63020c46 RS |
2623 | this_command_key_count_reset = 0; |
2624 | ||
ce0d2858 | 2625 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2626 | { |
fce33686 JB |
2627 | /* We set this to Qmacro; since that's not a frame, nobody will |
2628 | try to switch frames on us, and the selected window will | |
2629 | remain unchanged. | |
2630 | ||
2631 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2632 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2633 | real event came from. Normally, a switch-frame event selects |
2634 | internal_last_event_frame after each command is read, but | |
2635 | events read from a macro should never cause a new frame to be | |
2636 | selected. */ | |
4c52b668 | 2637 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2638 | |
663258f2 JB |
2639 | /* Exit the macro if we are at the end. |
2640 | Also, some things replace the macro with t | |
2641 | to force an early exit. */ | |
ce0d2858 | 2642 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2643 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2644 | { |
18cd2eeb | 2645 | XSETINT (c, -1); |
184c3d81 | 2646 | goto exit; |
284f4730 | 2647 | } |
df0f2ba1 | 2648 | |
649d952d | 2649 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2650 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2651 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2652 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2653 | |
649d952d | 2654 | executing_kbd_macro_index++; |
284f4730 JB |
2655 | |
2656 | goto from_macro; | |
2657 | } | |
2658 | ||
cd21b839 JB |
2659 | if (!NILP (unread_switch_frame)) |
2660 | { | |
2661 | c = unread_switch_frame; | |
2662 | unread_switch_frame = Qnil; | |
2663 | ||
2664 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2665 | again, so we do not set `reread'. */ |
f4255cd1 | 2666 | goto reread_first; |
cd21b839 JB |
2667 | } |
2668 | ||
adc1d5c8 | 2669 | /* if redisplay was requested */ |
6e4e64a8 RS |
2670 | if (commandflag >= 0) |
2671 | { | |
0975aa24 | 2672 | int echo_current = EQ (echo_message_buffer, echo_area_buffer[0]); |
94f9b406 | 2673 | |
adc1d5c8 RS |
2674 | /* If there is pending input, process any events which are not |
2675 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2676 | if (input_pending |
2677 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2678 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2679 | |
adc1d5c8 RS |
2680 | /* Redisplay if no pending input. */ |
2681 | while (!input_pending) | |
2682 | { | |
5295a500 | 2683 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2684 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2685 | else |
2686 | redisplay (); | |
adc1d5c8 RS |
2687 | |
2688 | if (!input_pending) | |
2689 | /* Normal case: no input arrived during redisplay. */ | |
2690 | break; | |
2691 | ||
2692 | /* Input arrived and pre-empted redisplay. | |
2693 | Process any events which are not user-visible. */ | |
2694 | swallow_events (0); | |
2695 | /* If that cleared input_pending, try again to redisplay. */ | |
2696 | } | |
94f9b406 RS |
2697 | |
2698 | /* Prevent the redisplay we just did | |
2699 | from messing up echoing of the input after the prompt. */ | |
2700 | if (commandflag == 0 && echo_current) | |
2701 | echo_message_buffer = echo_area_buffer[0]; | |
2702 | ||
6e4e64a8 | 2703 | } |
e9bf89a0 | 2704 | |
59a84f8e | 2705 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2706 | |
59a84f8e GM |
2707 | The code in 20.x for the condition was |
2708 | ||
2709 | 1. echo_area_glyphs && *echo_area_glyphs | |
2710 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2711 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2712 | ||
2713 | (1) means there's a current message displayed | |
c60ee5e7 | 2714 | |
59a84f8e GM |
2715 | (2) means it's not the message from echoing from the current |
2716 | kboard. | |
c60ee5e7 | 2717 | |
59a84f8e GM |
2718 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2719 | is set to a non-null value. This is done in read_char and it is | |
2720 | set to echo_area_glyphs after a call to echo_char. That means | |
2721 | ok_to_echo_at_next_pause is either null or | |
2722 | current_kboard->echobuf with the appropriate current_kboard at | |
2723 | that time. | |
2724 | ||
2725 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2726 | must be either null, or the current message isn't from echoing at | |
2727 | all, or it's from echoing from a different kboard than the | |
2728 | current one. */ | |
c60ee5e7 | 2729 | |
27fd22dc | 2730 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2731 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2732 | && (/* And it's either not from echoing. */ |
2733 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2734 | /* Or it's an echo from a different kboard. */ | |
2735 | || echo_kboard != current_kboard | |
2736 | /* Or we explicitly allow overwriting whatever there is. */ | |
2737 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2738 | cancel_echoing (); |
410d4de9 | 2739 | else |
410d4de9 | 2740 | echo_dash (); |
c60ee5e7 | 2741 | |
410d4de9 RS |
2742 | /* Try reading a character via menu prompting in the minibuf. |
2743 | Try this before the sit-for, because the sit-for | |
2744 | would do the wrong thing if we are supposed to do | |
2745 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2746 | after a mouse event so don't try a minibuf menu. */ | |
2747 | c = Qnil; | |
2748 | if (nmaps > 0 && INTERACTIVE | |
2749 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2750 | /* Don't bring up a menu if we already have another event. */ | |
2751 | && NILP (Vunread_command_events) | |
2752 | && unread_command_char < 0 | |
4ec4ed6a | 2753 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2754 | { |
2755 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
9688ff53 KL |
2756 | |
2757 | if (INTEGERP (c) && XINT (c) == -2) | |
2758 | return c; /* wrong_kboard_jmpbuf */ | |
2759 | ||
410d4de9 RS |
2760 | if (! NILP (c)) |
2761 | { | |
2762 | key_already_recorded = 1; | |
2763 | goto non_reread_1; | |
2764 | } | |
2765 | } | |
284f4730 | 2766 | |
410d4de9 RS |
2767 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2768 | We will do that below, temporarily for short sections of code, | |
2769 | when appropriate. local_getcjmp must be in effect | |
2770 | around any call to sit_for or kbd_buffer_get_event; | |
2771 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2772 | |
092869b9 | 2773 | jmpcount = SPECPDL_INDEX (); |
410d4de9 | 2774 | if (_setjmp (local_getcjmp)) |
284f4730 | 2775 | { |
d6805803 | 2776 | /* Handle quits while reading the keyboard. */ |
dfbfad25 RS |
2777 | /* We must have saved the outer value of getcjmp here, |
2778 | so restore it now. */ | |
2779 | restore_getcjmp (save_jump); | |
092869b9 | 2780 | unbind_to (jmpcount, Qnil); |
18cd2eeb | 2781 | XSETINT (c, quit_char); |
788f89eb | 2782 | internal_last_event_frame = selected_frame; |
4c52b668 | 2783 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2784 | /* If we report the quit char as an event, |
2785 | don't do so more than once. */ | |
2786 | if (!NILP (Vinhibit_quit)) | |
2787 | Vquit_flag = Qnil; | |
284f4730 | 2788 | |
df0f2ba1 | 2789 | { |
788f89eb | 2790 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2791 | if (kb != current_kboard) |
df0f2ba1 | 2792 | { |
f3fbd155 | 2793 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2794 | /* We shouldn't get here if we were in single-kboard mode! */ |
2795 | if (single_kboard) | |
df0f2ba1 | 2796 | abort (); |
f3fbd155 KR |
2797 | if (CONSP (link)) |
2798 | { | |
2799 | while (CONSP (XCDR (link))) | |
2800 | link = XCDR (link); | |
2801 | if (!NILP (XCDR (link))) | |
2802 | abort (); | |
2803 | } | |
2804 | if (!CONSP (link)) | |
2805 | kb->kbd_queue = Fcons (c, Qnil); | |
2806 | else | |
2807 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2808 | kb->kbd_queue_has_data = 1; |
2809 | current_kboard = kb; | |
ef6661f7 RS |
2810 | /* This is going to exit from read_char |
2811 | so we had better get rid of this frame's stuff. */ | |
2812 | UNGCPRO; | |
9688ff53 | 2813 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
df0f2ba1 KH |
2814 | } |
2815 | } | |
284f4730 JB |
2816 | goto non_reread; |
2817 | } | |
2818 | ||
3236e6b8 CY |
2819 | /* Start idle timers if no time limit is supplied. We don't do it |
2820 | if a time limit is supplied to avoid an infinite recursion in the | |
2821 | situation where an idle timer calls `sit-for'. */ | |
70282fce | 2822 | |
3236e6b8 | 2823 | if (!end_time) |
70282fce | 2824 | timer_start_idle (); |
d9d4c147 | 2825 | |
284f4730 JB |
2826 | /* If in middle of key sequence and minibuffer not active, |
2827 | start echoing if enough time elapses. */ | |
410d4de9 | 2828 | |
c60ee5e7 | 2829 | if (minibuf_level == 0 |
179f689c | 2830 | && !end_time |
7ee32cda | 2831 | && !current_kboard->immediate_echo |
6c6083a9 | 2832 | && this_command_key_count > 0 |
27203ead | 2833 | && ! noninteractive |
f2647d04 DL |
2834 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2835 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2836 | && (/* No message. */ |
2837 | NILP (echo_area_buffer[0]) | |
2838 | /* Or empty message. */ | |
2839 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2840 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2841 | /* Or already echoing from same kboard. */ | |
2842 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2843 | /* Or not echoing before and echoing allowed. */ | |
2844 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 | 2845 | { |
7d6de002 RS |
2846 | /* After a mouse event, start echoing right away. |
2847 | This is because we are probably about to display a menu, | |
2848 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2849 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2850 | echo_now (); |
7d6de002 RS |
2851 | else |
2852 | { | |
666dc232 KS |
2853 | Lisp_Object tem0; |
2854 | ||
410d4de9 RS |
2855 | save_getcjmp (save_jump); |
2856 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2857 | tem0 = sit_for (Vecho_keystrokes, 1, 1); |
410d4de9 | 2858 | restore_getcjmp (save_jump); |
303b5b3f RS |
2859 | if (EQ (tem0, Qt) |
2860 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2861 | echo_now (); |
7d6de002 | 2862 | } |
284f4730 JB |
2863 | } |
2864 | ||
410d4de9 | 2865 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2866 | |
2867 | if (commandflag != 0 | |
2868 | && auto_save_interval > 0 | |
c43b1734 | 2869 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2870 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2871 | { |
284f4730 | 2872 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2873 | /* Hooks can actually change some buffers in auto save. */ |
2874 | redisplay (); | |
284f4730 JB |
2875 | } |
2876 | ||
8150596a | 2877 | /* Try reading using an X menu. |
24597608 RS |
2878 | This is never confused with reading using the minibuf |
2879 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2880 | does not pass on any keymaps. */ | |
410d4de9 | 2881 | |
24597608 | 2882 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2883 | && !NILP (prev_event) |
2884 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2885 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2886 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2887 | /* Don't bring up a menu if we already have another event. */ |
2888 | && NILP (Vunread_command_events) | |
b8556aee | 2889 | && unread_command_char < 0) |
8eb4d8ef RS |
2890 | { |
2891 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2892 | ||
2893 | /* Now that we have read an event, Emacs is not idle. */ | |
3236e6b8 CY |
2894 | if (!end_time) |
2895 | timer_stop_idle (); | |
8eb4d8ef | 2896 | |
184c3d81 | 2897 | goto exit; |
8eb4d8ef | 2898 | } |
7d6de002 | 2899 | |
410d4de9 RS |
2900 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2901 | ||
26c1639e | 2902 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2903 | { |
2904 | int delay_level, buffer_size; | |
2905 | ||
410d4de9 RS |
2906 | /* Slow down auto saves logarithmically in size of current buffer, |
2907 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2908 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2909 | last_non_minibuf_size = Z - BEG; | |
2910 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2911 | delay_level = 0; | |
2912 | while (buffer_size > 64) | |
2913 | delay_level++, buffer_size -= buffer_size >> 2; | |
2914 | if (delay_level < 4) delay_level = 4; | |
2915 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2916 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2917 | ||
2918 | /* Auto save if enough time goes by without input. */ | |
2919 | if (commandflag != 0 | |
c43b1734 | 2920 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2921 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2922 | && XINT (Vauto_save_timeout) > 0) |
2923 | { | |
2924 | Lisp_Object tem0; | |
666dc232 | 2925 | int timeout = delay_level * XFASTINT (Vauto_save_timeout) / 4; |
410d4de9 RS |
2926 | |
2927 | save_getcjmp (save_jump); | |
2928 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2929 | tem0 = sit_for (make_number (timeout), 1, 1); |
410d4de9 RS |
2930 | restore_getcjmp (save_jump); |
2931 | ||
303b5b3f RS |
2932 | if (EQ (tem0, Qt) |
2933 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2934 | { |
7d6de002 | 2935 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2936 | |
2937 | /* If we have auto-saved and there is still no input | |
2938 | available, garbage collect if there has been enough | |
2939 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2940 | if (!detect_input_pending_run_timers (0) |
c8e16a02 | 2941 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2942 | Fgarbage_collect (); |
410d4de9 | 2943 | |
ef8fd672 | 2944 | redisplay (); |
7d6de002 RS |
2945 | } |
2946 | } | |
2947 | } | |
284f4730 | 2948 | |
67ddbec3 KL |
2949 | /* Notify the caller if an autosave hook, or a timer, sentinel or |
2950 | filter in the sit_for calls above have changed the current | |
2951 | kboard. This could happen if they use the minibuffer or start a | |
2952 | recursive edit, like the fancy splash screen in server.el's | |
2953 | filter. If this longjmp wasn't here, read_key_sequence would | |
2954 | interpret the next key sequence using the wrong translation | |
2955 | tables and function keymaps. */ | |
b3e6f69c KL |
2956 | if (NILP (c) && current_kboard != orig_kboard) |
2957 | { | |
2958 | UNGCPRO; | |
9688ff53 | 2959 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
b3e6f69c KL |
2960 | } |
2961 | ||
303b5b3f RS |
2962 | /* If this has become non-nil here, it has been set by a timer |
2963 | or sentinel or filter. */ | |
2964 | if (CONSP (Vunread_command_events)) | |
2965 | { | |
7539e11f KR |
2966 | c = XCAR (Vunread_command_events); |
2967 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2968 | } |
2969 | ||
410d4de9 RS |
2970 | /* Read something from current KBOARD's side queue, if possible. */ |
2971 | ||
beecf6a1 | 2972 | if (NILP (c)) |
1e12dd87 | 2973 | { |
c5fdd383 | 2974 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2975 | { |
c5fdd383 | 2976 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2977 | abort (); |
7539e11f | 2978 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2979 | current_kboard->kbd_queue |
7539e11f | 2980 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2981 | if (NILP (current_kboard->kbd_queue)) |
2982 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2983 | input_pending = readable_events (0); |
4c52b668 KH |
2984 | if (EVENT_HAS_PARAMETERS (c) |
2985 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2986 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2987 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2988 | } |
1e8bd3da RS |
2989 | } |
2990 | ||
1e8bd3da RS |
2991 | /* If current_kboard's side queue is empty check the other kboards. |
2992 | If one of them has data that we have not yet seen here, | |
2993 | switch to it and process the data waiting for it. | |
2994 | ||
2995 | Note: if the events queued up for another kboard | |
2996 | have already been seen here, and therefore are not a complete command, | |
2997 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2998 | That's to avoid an infinite loop switching between kboards here. */ | |
2999 | if (NILP (c) && !single_kboard) | |
3000 | { | |
3001 | KBOARD *kb; | |
3002 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3003 | if (kb->kbd_queue_has_data) | |
3004 | { | |
3005 | current_kboard = kb; | |
ef6661f7 RS |
3006 | /* This is going to exit from read_char |
3007 | so we had better get rid of this frame's stuff. */ | |
3008 | UNGCPRO; | |
9688ff53 | 3009 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
1e8bd3da RS |
3010 | } |
3011 | } | |
df0f2ba1 | 3012 | |
410d4de9 RS |
3013 | wrong_kboard: |
3014 | ||
184c3d81 | 3015 | STOP_POLLING; |
410d4de9 | 3016 | |
1e8bd3da RS |
3017 | /* Finally, we read from the main queue, |
3018 | and if that gives us something we can't use yet, we put it on the | |
3019 | appropriate side queue and try again. */ | |
410d4de9 | 3020 | |
1e8bd3da RS |
3021 | if (NILP (c)) |
3022 | { | |
3023 | KBOARD *kb; | |
3024 | ||
179f689c CY |
3025 | if (end_time) |
3026 | { | |
3027 | EMACS_TIME now; | |
3028 | EMACS_GET_TIME (now); | |
3029 | if (EMACS_TIME_GE (now, *end_time)) | |
3030 | goto exit; | |
3031 | } | |
3032 | ||
1e8bd3da | 3033 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
3034 | save_getcjmp (save_jump); |
3035 | restore_getcjmp (local_getcjmp); | |
3236e6b8 | 3036 | if (!end_time) |
70282fce | 3037 | timer_start_idle (); |
179f689c | 3038 | c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time); |
410d4de9 RS |
3039 | restore_getcjmp (save_jump); |
3040 | ||
410d4de9 | 3041 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 3042 | { |
f3fbd155 KR |
3043 | Lisp_Object link = kb->kbd_queue; |
3044 | if (CONSP (link)) | |
3045 | { | |
3046 | while (CONSP (XCDR (link))) | |
3047 | link = XCDR (link); | |
3048 | if (!NILP (XCDR (link))) | |
3049 | abort (); | |
3050 | } | |
3051 | if (!CONSP (link)) | |
3052 | kb->kbd_queue = Fcons (c, Qnil); | |
3053 | else | |
3054 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 3055 | kb->kbd_queue_has_data = 1; |
46b84797 | 3056 | c = Qnil; |
1e8bd3da RS |
3057 | if (single_kboard) |
3058 | goto wrong_kboard; | |
3059 | current_kboard = kb; | |
ef6661f7 RS |
3060 | /* This is going to exit from read_char |
3061 | so we had better get rid of this frame's stuff. */ | |
3062 | UNGCPRO; | |
9688ff53 | 3063 | return make_number (-2); |
df0f2ba1 | 3064 | } |
beecf6a1 | 3065 | } |
1e8bd3da | 3066 | |
284f4730 | 3067 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 3068 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
3069 | Fkill_emacs (make_number (1)); |
3070 | ||
8c18cbfb | 3071 | if (INTEGERP (c)) |
80645119 JB |
3072 | { |
3073 | /* Add in any extra modifiers, where appropriate. */ | |
3074 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
3075 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
3076 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 3077 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
3078 | |
3079 | /* Transfer any other modifier bits directly from | |
3080 | extra_keyboard_modifiers to c. Ignore the actual character code | |
3081 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 3082 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 3083 | } |
9fa4395d | 3084 | |
284f4730 JB |
3085 | non_reread: |
3086 | ||
3236e6b8 CY |
3087 | if (!end_time) |
3088 | timer_stop_idle (); | |
184c3d81 | 3089 | RESUME_POLLING; |
284f4730 | 3090 | |
410d4de9 RS |
3091 | if (NILP (c)) |
3092 | { | |
3093 | if (commandflag >= 0 | |
4ec4ed6a | 3094 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
3095 | redisplay (); |
3096 | ||
3097 | goto wrong_kboard; | |
3098 | } | |
3099 | ||
3100 | non_reread_1: | |
3101 | ||
dfd11da7 | 3102 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
3103 | so don't show them to the user. |
3104 | Also, don't record a key if we already did. */ | |
3105 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 3106 | goto exit; |
a1341f75 | 3107 | |
7f07d5ca RS |
3108 | /* Process special events within read_char |
3109 | and loop around to read another event. */ | |
017c7cb6 RS |
3110 | save = Vquit_flag; |
3111 | Vquit_flag = Qnil; | |
02067692 | 3112 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 3113 | Vquit_flag = save; |
7f07d5ca RS |
3114 | |
3115 | if (!NILP (tem)) | |
3116 | { | |
b3e6f69c | 3117 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 | 3118 | int was_locked = single_kboard; |
b3e6f69c KL |
3119 | int count = SPECPDL_INDEX (); |
3120 | record_single_kboard_state (); | |
3121 | #endif | |
033b73e2 | 3122 | |
4b09796d GM |
3123 | last_input_event = c; |
3124 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_event), Qt); | |
ba8dfba8 | 3125 | |
3236e6b8 | 3126 | if (CONSP (c) && EQ (XCAR (c), Qselect_window) && !end_time) |
5d12f14d EZ |
3127 | /* We stopped being idle for this event; undo that. This |
3128 | prevents automatic window selection (under | |
0b9a1d3d | 3129 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 3130 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 3131 | timer_resume_idle (); |
5d12f14d | 3132 | |
b3e6f69c | 3133 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 RS |
3134 | /* Resume allowing input from any kboard, if that was true before. */ |
3135 | if (!was_locked) | |
3136 | any_kboard_state (); | |
b3e6f69c KL |
3137 | unbind_to (count, Qnil); |
3138 | #endif | |
ba8dfba8 | 3139 | |
7f07d5ca RS |
3140 | goto retry; |
3141 | } | |
3142 | ||
284f4730 | 3143 | /* Handle things that only apply to characters. */ |
8c18cbfb | 3144 | if (INTEGERP (c)) |
284f4730 JB |
3145 | { |
3146 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 3147 | if (XINT (c) == -1) |
184c3d81 | 3148 | goto exit; |
284f4730 | 3149 | |
2e478293 KL |
3150 | if ((STRINGP (current_kboard->Vkeyboard_translate_table) |
3151 | && SCHARS (current_kboard->Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) | |
3152 | || (VECTORP (current_kboard->Vkeyboard_translate_table) | |
3153 | && XVECTOR (current_kboard->Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
3154 | || (CHAR_TABLE_P (current_kboard->Vkeyboard_translate_table) | |
dbcf4347 | 3155 | && CHARACTERP (c))) |
f9414d62 RS |
3156 | { |
3157 | Lisp_Object d; | |
2e478293 | 3158 | d = Faref (current_kboard->Vkeyboard_translate_table, c); |
f9414d62 RS |
3159 | /* nil in keyboard-translate-table means no translation. */ |
3160 | if (!NILP (d)) | |
3161 | c = d; | |
3162 | } | |
284f4730 JB |
3163 | } |
3164 | ||
e4fe371d RS |
3165 | /* If this event is a mouse click in the menu bar, |
3166 | return just menu-bar for now. Modify the mouse click event | |
3167 | so we won't do this twice, then queue it up. */ | |
3168 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 3169 | && CONSP (XCDR (c)) |
e4fe371d | 3170 | && CONSP (EVENT_START (c)) |
7539e11f | 3171 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 3172 | { |
e4fe371d | 3173 | Lisp_Object posn; |
284f4730 | 3174 | |
6b61353c | 3175 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
3176 | /* Handle menu-bar events: |
3177 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 3178 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
3179 | { |
3180 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
6b61353c | 3181 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 3182 | |
e4fe371d RS |
3183 | also_record = c; |
3184 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
3185 | c = posn; | |
284f4730 | 3186 | } |
284f4730 JB |
3187 | } |
3188 | ||
7d18f9ae RS |
3189 | /* Store these characters into recent_keys, the dribble file if any, |
3190 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
3191 | record_char (c); |
3192 | if (! NILP (also_record)) | |
3193 | record_char (also_record); | |
51172b6d | 3194 | |
d5eecefb RS |
3195 | /* Wipe the echo area. |
3196 | But first, if we are about to use an input method, | |
3197 | save the echo area contents for it to refer to. */ | |
3198 | if (INTEGERP (c) | |
3199 | && ! NILP (Vinput_method_function) | |
3200 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
3201 | && (unsigned) XINT (c) != 127 |
3202 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
3203 | { |
3204 | previous_echo_area_message = Fcurrent_message (); | |
3205 | Vinput_method_previous_message = previous_echo_area_message; | |
3206 | } | |
d5eecefb | 3207 | |
1172eb8d GM |
3208 | /* Now wipe the echo area, except for help events which do their |
3209 | own stuff with the echo area. */ | |
4d2e9f95 GM |
3210 | if (!CONSP (c) |
3211 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
3212 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
3213 | { |
3214 | if (!NILP (echo_area_buffer[0])) | |
3215 | safe_run_hooks (Qecho_area_clear_hook); | |
3216 | clear_message (1, 0); | |
3217 | } | |
d5eecefb | 3218 | |
7d18f9ae | 3219 | reread_for_input_method: |
284f4730 | 3220 | from_macro: |
7d18f9ae | 3221 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
3222 | if (INTEGERP (c) |
3223 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
3224 | /* Don't run the input method within a key sequence, |
3225 | after the first event of the key sequence. */ | |
3226 | && NILP (prev_event) | |
d5eecefb | 3227 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
3228 | && (unsigned) XINT (c) != 127 |
3229 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3230 | { |
c60ee5e7 | 3231 | Lisp_Object keys; |
63020c46 | 3232 | int key_count, key_count_reset; |
d5eecefb | 3233 | struct gcpro gcpro1; |
aed13378 | 3234 | int count = SPECPDL_INDEX (); |
d5eecefb | 3235 | |
6e5742a0 RS |
3236 | /* Save the echo status. */ |
3237 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3238 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 3239 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
3240 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3241 | ||
22b94eeb | 3242 | #if 0 |
6e5742a0 RS |
3243 | if (before_command_restore_flag) |
3244 | { | |
3245 | this_command_key_count = before_command_key_count_1; | |
3246 | if (this_command_key_count < this_single_command_key_start) | |
3247 | this_single_command_key_start = this_command_key_count; | |
3248 | echo_truncate (before_command_echo_length_1); | |
3249 | before_command_restore_flag = 0; | |
3250 | } | |
22b94eeb | 3251 | #endif |
6e5742a0 RS |
3252 | |
3253 | /* Save the this_command_keys status. */ | |
3254 | key_count = this_command_key_count; | |
63020c46 | 3255 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3256 | |
3257 | if (key_count > 0) | |
3258 | keys = Fcopy_sequence (this_command_keys); | |
3259 | else | |
3260 | keys = Qnil; | |
d5eecefb | 3261 | GCPRO1 (keys); |
6e5742a0 RS |
3262 | |
3263 | /* Clear out this_command_keys. */ | |
3264 | this_command_key_count = 0; | |
63020c46 | 3265 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3266 | |
3267 | /* Now wipe the echo area. */ | |
985f9f66 | 3268 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3269 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3270 | clear_message (1, 0); |
6e5742a0 RS |
3271 | echo_truncate (0); |
3272 | ||
b638f328 RS |
3273 | /* If we are not reading a key sequence, |
3274 | never use the echo area. */ | |
3275 | if (maps == 0) | |
3276 | { | |
b638f328 RS |
3277 | specbind (Qinput_method_use_echo_area, Qt); |
3278 | } | |
3279 | ||
6e5742a0 | 3280 | /* Call the input method. */ |
d5eecefb | 3281 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3282 | |
3283 | tem = unbind_to (count, tem); | |
3284 | ||
6e5742a0 RS |
3285 | /* Restore the saved echoing state |
3286 | and this_command_keys state. */ | |
3287 | this_command_key_count = key_count; | |
63020c46 | 3288 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3289 | if (key_count > 0) |
3290 | this_command_keys = keys; | |
3291 | ||
3292 | cancel_echoing (); | |
3293 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 3294 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
3295 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
3296 | if (saved_immediate_echo) | |
3297 | echo_now (); | |
3298 | ||
d5eecefb | 3299 | UNGCPRO; |
6e5742a0 | 3300 | |
d5eecefb RS |
3301 | /* The input method can return no events. */ |
3302 | if (! CONSP (tem)) | |
7d18f9ae | 3303 | { |
d5eecefb | 3304 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3305 | if (! NILP (previous_echo_area_message)) |
3306 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3307 | goto retry; |
7d18f9ae | 3308 | } |
d5eecefb | 3309 | /* It returned one event or more. */ |
7539e11f | 3310 | c = XCAR (tem); |
d5eecefb | 3311 | Vunread_post_input_method_events |
7539e11f | 3312 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3313 | } |
7c3bc944 | 3314 | |
7d18f9ae | 3315 | reread_first: |
284f4730 | 3316 | |
7ee32cda | 3317 | /* Display help if not echoing. */ |
1172eb8d | 3318 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3319 | { |
2190735a | 3320 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3321 | Lisp_Object help, object, position, window, tem; |
3322 | ||
3323 | tem = Fcdr (XCDR (c)); | |
3324 | help = Fcar (tem); | |
3325 | tem = Fcdr (tem); | |
3326 | window = Fcar (tem); | |
3327 | tem = Fcdr (tem); | |
3328 | object = Fcar (tem); | |
3329 | tem = Fcdr (tem); | |
3330 | position = Fcar (tem); | |
3331 | ||
2190735a | 3332 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3333 | |
3334 | /* We stopped being idle for this event; undo that. */ | |
3236e6b8 CY |
3335 | if (!end_time) |
3336 | timer_resume_idle (); | |
7ee32cda GM |
3337 | goto retry; |
3338 | } | |
c60ee5e7 | 3339 | |
4c0240d2 RS |
3340 | if ((! reread || this_command_key_count == 0 |
3341 | || this_command_key_count_reset) | |
3342 | && !end_time) | |
e4fe371d | 3343 | { |
7d18f9ae RS |
3344 | |
3345 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3346 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3347 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3348 | && ! (EVENT_HAS_PARAMETERS (c) |
3349 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3350 | { | |
3351 | echo_char (c); | |
3352 | if (! NILP (also_record)) | |
3353 | echo_char (also_record); | |
3354 | /* Once we reread a character, echoing can happen | |
3355 | the next time we pause to read a new one. */ | |
985f9f66 | 3356 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3357 | } |
3358 | ||
3359 | /* Record this character as part of the current key. */ | |
3360 | add_command_key (c); | |
e4fe371d | 3361 | if (! NILP (also_record)) |
7d18f9ae | 3362 | add_command_key (also_record); |
e4fe371d | 3363 | } |
b8556aee | 3364 | |
4b09796d | 3365 | last_input_event = c; |
c43b1734 | 3366 | num_input_events++; |
284f4730 JB |
3367 | |
3368 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3369 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3370 | { |
3371 | Lisp_Object tem0; | |
aed13378 | 3372 | count = SPECPDL_INDEX (); |
284f4730 | 3373 | |
638d3da0 CY |
3374 | help_form_saved_window_configs |
3375 | = Fcons (Fcurrent_window_configuration (Qnil), | |
3376 | help_form_saved_window_configs); | |
3377 | record_unwind_protect (read_char_help_form_unwind, Qnil); | |
284f4730 JB |
3378 | |
3379 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3380 | if (STRINGP (tem0)) |
284f4730 JB |
3381 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3382 | ||
3383 | cancel_echoing (); | |
3cb81011 | 3384 | do |
638d3da0 CY |
3385 | { |
3386 | c = read_char (0, 0, 0, Qnil, 0, NULL); | |
3387 | if (EVENT_HAS_PARAMETERS (c) | |
3388 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_click)) | |
3389 | XSETCAR (help_form_saved_window_configs, Qnil); | |
3390 | } | |
8c18cbfb | 3391 | while (BUFFERP (c)); |
ff11dfa1 | 3392 | /* Remove the help from the frame */ |
284f4730 | 3393 | unbind_to (count, Qnil); |
410d4de9 | 3394 | |
284f4730 JB |
3395 | redisplay (); |
3396 | if (EQ (c, make_number (040))) | |
3397 | { | |
3398 | cancel_echoing (); | |
3cb81011 | 3399 | do |
179f689c | 3400 | c = read_char (0, 0, 0, Qnil, 0, NULL); |
8c18cbfb | 3401 | while (BUFFERP (c)); |
284f4730 JB |
3402 | } |
3403 | } | |
3404 | ||
184c3d81 RS |
3405 | exit: |
3406 | RESUME_POLLING; | |
7c3bc944 | 3407 | RETURN_UNGCPRO (c); |
284f4730 JB |
3408 | } |
3409 | ||
8eb4d8ef RS |
3410 | /* Record a key that came from a mouse menu. |
3411 | Record it for echoing, for this-command-keys, and so on. */ | |
3412 | ||
3413 | static void | |
3414 | record_menu_key (c) | |
3415 | Lisp_Object c; | |
3416 | { | |
3417 | /* Wipe the echo area. */ | |
985f9f66 | 3418 | clear_message (1, 0); |
8eb4d8ef RS |
3419 | |
3420 | record_char (c); | |
3421 | ||
22b94eeb | 3422 | #if 0 |
8eb4d8ef RS |
3423 | before_command_key_count = this_command_key_count; |
3424 | before_command_echo_length = echo_length (); | |
22b94eeb | 3425 | #endif |
8eb4d8ef RS |
3426 | |
3427 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3428 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3429 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3430 | { |
3431 | echo_char (c); | |
3432 | ||
3433 | /* Once we reread a character, echoing can happen | |
3434 | the next time we pause to read a new one. */ | |
3435 | ok_to_echo_at_next_pause = 0; | |
3436 | } | |
3437 | ||
3438 | /* Record this character as part of the current key. */ | |
3439 | add_command_key (c); | |
3440 | ||
3441 | /* Re-reading in the middle of a command */ | |
4b09796d | 3442 | last_input_event = c; |
c43b1734 | 3443 | num_input_events++; |
8eb4d8ef RS |
3444 | } |
3445 | ||
ecb7cb34 KH |
3446 | /* Return 1 if should recognize C as "the help character". */ |
3447 | ||
3448 | int | |
3449 | help_char_p (c) | |
3450 | Lisp_Object c; | |
3451 | { | |
3452 | Lisp_Object tail; | |
3453 | ||
3454 | if (EQ (c, Vhelp_char)) | |
3455 | return 1; | |
7539e11f KR |
3456 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3457 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3458 | return 1; |
3459 | return 0; | |
3460 | } | |
3461 | ||
e4fe371d RS |
3462 | /* Record the input event C in various ways. */ |
3463 | ||
3464 | static void | |
3465 | record_char (c) | |
3466 | Lisp_Object c; | |
3467 | { | |
090c68b9 | 3468 | int recorded = 0; |
52be17cc | 3469 | |
090c68b9 KS |
3470 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3471 | { | |
3472 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3473 | events, we filter out repeated help-echo events, only store the | |
3474 | first and last in a series of mouse-movement events, and don't | |
3475 | store repeated help-echo events which are only separated by | |
3476 | mouse-movement events. */ | |
3477 | ||
3478 | Lisp_Object ev1, ev2, ev3; | |
3479 | int ix1, ix2, ix3; | |
c60ee5e7 | 3480 | |
090c68b9 KS |
3481 | if ((ix1 = recent_keys_index - 1) < 0) |
3482 | ix1 = NUM_RECENT_KEYS - 1; | |
3483 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3484 | |
090c68b9 KS |
3485 | if ((ix2 = ix1 - 1) < 0) |
3486 | ix2 = NUM_RECENT_KEYS - 1; | |
3487 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3488 | |
090c68b9 KS |
3489 | if ((ix3 = ix2 - 1) < 0) |
3490 | ix3 = NUM_RECENT_KEYS - 1; | |
3491 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3492 | |
090c68b9 KS |
3493 | if (EQ (XCAR (c), Qhelp_echo)) |
3494 | { | |
3495 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3496 | message, and a different help than the previously recorded |
090c68b9 KS |
3497 | event. */ |
3498 | Lisp_Object help, last_help; | |
3499 | ||
3500 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3501 | if (!STRINGP (help)) | |
3502 | recorded = 1; | |
3503 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3504 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3505 | recorded = 1; | |
3506 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3507 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3508 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3509 | recorded = -1; | |
3510 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3511 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3512 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3513 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3514 | recorded = -2; | |
3515 | } | |
3516 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3517 | { |
090c68b9 KS |
3518 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3519 | So additional mouse movement events replace the last element. */ | |
3520 | Lisp_Object last_window, window; | |
3521 | ||
3522 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3523 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3524 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3525 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3526 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3527 | { |
090c68b9 KS |
3528 | ASET (recent_keys, ix1, c); |
3529 | recorded = 1; | |
52be17cc GM |
3530 | } |
3531 | } | |
3532 | } | |
3533 | else | |
090c68b9 KS |
3534 | store_kbd_macro_char (c); |
3535 | ||
3536 | if (!recorded) | |
e8a50785 GM |
3537 | { |
3538 | total_keys++; | |
3539 | ASET (recent_keys, recent_keys_index, c); | |
3540 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3541 | recent_keys_index = 0; | |
3542 | } | |
090c68b9 KS |
3543 | else if (recorded < 0) |
3544 | { | |
3545 | /* We need to remove one or two events from recent_keys. | |
3546 | To do this, we simply put nil at those events and move the | |
3547 | recent_keys_index backwards over those events. Usually, | |
3548 | users will never see those nil events, as they will be | |
3549 | overwritten by the command keys entered to see recent_keys | |
3550 | (e.g. C-h l). */ | |
3551 | ||
3552 | while (recorded++ < 0 && total_keys > 0) | |
3553 | { | |
3554 | if (total_keys < NUM_RECENT_KEYS) | |
3555 | total_keys--; | |
3556 | if (--recent_keys_index < 0) | |
3557 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3558 | ASET (recent_keys, recent_keys_index, Qnil); | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | num_nonmacro_input_events++; | |
c60ee5e7 | 3563 | |
e4fe371d RS |
3564 | /* Write c to the dribble file. If c is a lispy event, write |
3565 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3566 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3567 | if (dribble) | |
3568 | { | |
34f5c10f | 3569 | BLOCK_INPUT; |
e4fe371d RS |
3570 | if (INTEGERP (c)) |
3571 | { | |
3572 | if (XUINT (c) < 0x100) | |
3573 | putc (XINT (c), dribble); | |
3574 | else | |
6de34814 | 3575 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3576 | } |
3577 | else | |
3578 | { | |
3579 | Lisp_Object dribblee; | |
3580 | ||
3581 | /* If it's a structured event, take the event header. */ | |
3582 | dribblee = EVENT_HEAD (c); | |
3583 | ||
3584 | if (SYMBOLP (dribblee)) | |
3585 | { | |
3586 | putc ('<', dribble); | |
d5db4077 KR |
3587 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3588 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3589 | dribble); |
3590 | putc ('>', dribble); | |
3591 | } | |
3592 | } | |
3593 | ||
3594 | fflush (dribble); | |
34f5c10f | 3595 | UNBLOCK_INPUT; |
e4fe371d | 3596 | } |
e4fe371d RS |
3597 | } |
3598 | ||
284f4730 JB |
3599 | Lisp_Object |
3600 | print_help (object) | |
3601 | Lisp_Object object; | |
3602 | { | |
622de3e9 | 3603 | struct buffer *old = current_buffer; |
284f4730 | 3604 | Fprinc (object, Qnil); |
622de3e9 KH |
3605 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3606 | call0 (intern ("help-mode")); | |
3607 | set_buffer_internal (old); | |
284f4730 JB |
3608 | return Qnil; |
3609 | } | |
3610 | ||
3611 | /* Copy out or in the info on where C-g should throw to. | |
3612 | This is used when running Lisp code from within get_char, | |
3613 | in case get_char is called recursively. | |
3614 | See read_process_output. */ | |
3615 | ||
dfcf069d | 3616 | static void |
284f4730 JB |
3617 | save_getcjmp (temp) |
3618 | jmp_buf temp; | |
3619 | { | |
3620 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3621 | } | |
3622 | ||
dfcf069d | 3623 | static void |
284f4730 JB |
3624 | restore_getcjmp (temp) |
3625 | jmp_buf temp; | |
3626 | { | |
3627 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3628 | } | |
284f4730 | 3629 | \f |
a612e298 RS |
3630 | /* Low level keyboard/mouse input. |
3631 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3632 | kbd_buffer_get_event retrieves them. */ |
a612e298 | 3633 | |
e0f24100 | 3634 | /* Return true if there are any events in the queue that read-char |
a612e298 RS |
3635 | would return. If this returns false, a read-char would block. */ |
3636 | static int | |
a2d5fca0 JD |
3637 | readable_events (flags) |
3638 | int flags; | |
a612e298 | 3639 | { |
a2d5fca0 JD |
3640 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3641 | timer_check (1); | |
4ec4ed6a | 3642 | |
a2d5fca0 JD |
3643 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3644 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3645 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3646 | { |
354344a2 YM |
3647 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3648 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3649 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3650 | #endif | |
3651 | )) | |
20057d52 JD |
3652 | { |
3653 | struct input_event *event; | |
3654 | ||
3655 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3656 | ? kbd_fetch_ptr | |
3657 | : kbd_buffer); | |
3658 | ||
354344a2 YM |
3659 | do |
3660 | { | |
3661 | if (!( | |
3662 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3663 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3664 | #endif | |
3665 | event->kind == FOCUS_IN_EVENT) | |
3666 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3667 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3668 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3669 | && event->part == scroll_bar_handle | |
3670 | && event->modifiers == 0) | |
3671 | #endif | |
3672 | ) | |
3673 | return 1; | |
3674 | event++; | |
20057d52 JD |
3675 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3676 | event = kbd_buffer; | |
354344a2 YM |
3677 | } |
3678 | while (event != kbd_store_ptr); | |
20057d52 | 3679 | } |
354344a2 YM |
3680 | else |
3681 | return 1; | |
a0ba8995 RS |
3682 | } |
3683 | ||
ae372f41 | 3684 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a2d5fca0 JD |
3685 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3686 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3687 | return 1; |
3688 | #endif | |
1e8bd3da | 3689 | if (single_kboard) |
4c52b668 | 3690 | { |
c5fdd383 | 3691 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3692 | return 1; |
3693 | } | |
3694 | else | |
3695 | { | |
c5fdd383 KH |
3696 | KBOARD *kb; |
3697 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3698 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3699 | return 1; |
3700 | } | |
beecf6a1 | 3701 | return 0; |
a612e298 RS |
3702 | } |
3703 | ||
3704 | /* Set this for debugging, to have a way to get out */ | |
3705 | int stop_character; | |
284f4730 | 3706 | |
c5fdd383 KH |
3707 | static KBOARD * |
3708 | event_to_kboard (event) | |
5798cf15 KH |
3709 | struct input_event *event; |
3710 | { | |
3711 | Lisp_Object frame; | |
3712 | frame = event->frame_or_window; | |
3713 | if (CONSP (frame)) | |
7539e11f | 3714 | frame = XCAR (frame); |
5798cf15 KH |
3715 | else if (WINDOWP (frame)) |
3716 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3717 | ||
3718 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3719 | For now, just ignore the problem. |
3720 | Also ignore dead frames here. */ | |
3721 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3722 | return 0; |
3723 | else | |
c5fdd383 | 3724 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 | 3725 | } |
5798cf15 | 3726 | |
2a84c6da KS |
3727 | |
3728 | Lisp_Object Vthrow_on_input; | |
3729 | ||
284f4730 JB |
3730 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3731 | ||
3732 | void | |
3733 | kbd_buffer_store_event (event) | |
3734 | register struct input_event *event; | |
6b61353c KH |
3735 | { |
3736 | kbd_buffer_store_event_hold (event, 0); | |
3737 | } | |
3738 | ||
3739 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3740 | ||
3741 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3742 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3743 | Else, if EVENT is a quit event, store the quit event | |
3744 | in HOLD_QUIT, and return (thus ignoring further events). | |
3745 | ||
3746 | This is used in read_avail_input to postpone the processing | |
3747 | of the quit event until all subsequent input events have been | |
3748 | parsed (and discarded). | |
3749 | */ | |
3750 | ||
3751 | void | |
3752 | kbd_buffer_store_event_hold (event, hold_quit) | |
3753 | register struct input_event *event; | |
3754 | struct input_event *hold_quit; | |
284f4730 | 3755 | { |
3b8f9651 | 3756 | if (event->kind == NO_EVENT) |
284f4730 JB |
3757 | abort (); |
3758 | ||
6b61353c KH |
3759 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3760 | return; | |
3761 | ||
3b8f9651 | 3762 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3763 | { |
e9bf89a0 | 3764 | register int c = event->code & 0377; |
284f4730 | 3765 | |
faf5e407 JB |
3766 | if (event->modifiers & ctrl_modifier) |
3767 | c = make_ctrl_char (c); | |
3768 | ||
9fd7d808 RS |
3769 | c |= (event->modifiers |
3770 | & (meta_modifier | alt_modifier | |
3771 | | hyper_modifier | super_modifier)); | |
3772 | ||
86e5706b | 3773 | if (c == quit_char) |
284f4730 | 3774 | { |
d6805803 | 3775 | KBOARD *kb = FRAME_KBOARD (XFRAME (event->frame_or_window)); |
5798cf15 KH |
3776 | struct input_event *sp; |
3777 | ||
d6805803 | 3778 | if (single_kboard && kb != current_kboard) |
5798cf15 | 3779 | { |
c5fdd383 | 3780 | kb->kbd_queue |
5798cf15 KH |
3781 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3782 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3783 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3784 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3785 | { | |
3786 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3787 | sp = kbd_buffer; | |
3788 | ||
c5fdd383 | 3789 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3790 | { |
3b8f9651 | 3791 | sp->kind = NO_EVENT; |
5798cf15 | 3792 | sp->frame_or_window = Qnil; |
da8f7368 | 3793 | sp->arg = Qnil; |
5798cf15 KH |
3794 | } |
3795 | } | |
3796 | return; | |
3797 | } | |
3e51c7b7 | 3798 | |
6b61353c KH |
3799 | if (hold_quit) |
3800 | { | |
3801 | bcopy (event, (char *) hold_quit, sizeof (*event)); | |
3802 | return; | |
3803 | } | |
3804 | ||
284f4730 | 3805 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3806 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3807 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3808 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3809 | { |
9b8eb840 | 3810 | Lisp_Object focus; |
4bb994d1 | 3811 | |
9b8eb840 | 3812 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3813 | if (NILP (focus)) |
beecf6a1 | 3814 | focus = event->frame_or_window; |
4c52b668 KH |
3815 | internal_last_event_frame = focus; |
3816 | Vlast_event_frame = focus; | |
4bb994d1 | 3817 | } |
3e51c7b7 | 3818 | |
ffd56f97 | 3819 | last_event_timestamp = event->timestamp; |
114a8b8c | 3820 | handle_interrupt (); |
284f4730 JB |
3821 | return; |
3822 | } | |
3823 | ||
3824 | if (c && c == stop_character) | |
3825 | { | |
3826 | sys_suspend (); | |
3827 | return; | |
3828 | } | |
284f4730 | 3829 | } |
3b8f9651 | 3830 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3831 | Just ignore the second one. */ |
3b8f9651 | 3832 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3833 | && kbd_fetch_ptr != kbd_store_ptr |
6b61353c KH |
3834 | && ((kbd_store_ptr == kbd_buffer |
3835 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3836 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3837 | return; |
284f4730 | 3838 | |
beecf6a1 KH |
3839 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3840 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3841 | |
3842 | /* Don't let the very last slot in the buffer become full, | |
3843 | since that would make the two pointers equal, | |
3844 | and that is indistinguishable from an empty buffer. | |
3845 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3846 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3847 | { |
e3f6e7c7 KS |
3848 | *kbd_store_ptr = *event; |
3849 | ++kbd_store_ptr; | |
3850 | } | |
2a84c6da | 3851 | |
85e7f477 RS |
3852 | /* If we're inside while-no-input, and this event qualifies |
3853 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3854 | if (!NILP (Vthrow_on_input) |
3855 | && event->kind != FOCUS_IN_EVENT | |
3856 | && event->kind != HELP_EVENT | |
b809d9e7 | 3857 | && event->kind != DEICONIFY_EVENT) |
85e7f477 RS |
3858 | { |
3859 | Vquit_flag = Vthrow_on_input; | |
3860 | /* If we're inside a function that wants immediate quits, | |
3861 | do it now. */ | |
3862 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3863 | { | |
3864 | immediate_quit = 0; | |
3865 | sigfree (); | |
3866 | QUIT; | |
3867 | } | |
3868 | } | |
e3f6e7c7 | 3869 | } |
c60ee5e7 | 3870 | |
da8f7368 | 3871 | |
e3f6e7c7 | 3872 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3873 | |
e3f6e7c7 KS |
3874 | void |
3875 | kbd_buffer_unget_event (event) | |
3876 | register struct input_event *event; | |
3877 | { | |
3878 | if (kbd_fetch_ptr == kbd_buffer) | |
3879 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3880 | ||
3881 | /* Don't let the very last slot in the buffer become full, */ | |
3882 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3883 | { | |
3884 | --kbd_fetch_ptr; | |
3885 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3886 | } |
3887 | } | |
8dfd92c9 GM |
3888 | |
3889 | ||
f139e559 | 3890 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3891 | SIZE events. If there's not enough room in BUFP, ignore this |
3892 | event. | |
8dfd92c9 GM |
3893 | |
3894 | HELP is the help form. | |
3895 | ||
3896 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3897 | Lisp object where the help was found (a buffer, a string, an |
3898 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3899 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3900 | |
3901 | Value is the number of input_events generated. */ | |
3902 | ||
6b61353c KH |
3903 | void |
3904 | gen_help_event (help, frame, window, object, pos) | |
2190735a | 3905 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3906 | int pos; |
3907 | { | |
6b61353c KH |
3908 | struct input_event event; |
3909 | ||
3910 | EVENT_INIT (event); | |
3911 | ||
3912 | event.kind = HELP_EVENT; | |
3913 | event.frame_or_window = frame; | |
3914 | event.arg = object; | |
3915 | event.x = WINDOWP (window) ? window : frame; | |
3916 | event.y = help; | |
3917 | event.code = pos; | |
3918 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3919 | } |
3920 | ||
3921 | ||
3922 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3923 | ||
3924 | void | |
3925 | kbd_buffer_store_help_event (frame, help) | |
3926 | Lisp_Object frame, help; | |
3927 | { | |
3928 | struct input_event event; | |
3929 | ||
3930 | event.kind = HELP_EVENT; | |
3931 | event.frame_or_window = frame; | |
3932 | event.arg = Qnil; | |
2e1a49ad SM |
3933 | event.x = Qnil; |
3934 | event.y = help; | |
8dfd92c9 GM |
3935 | event.code = 0; |
3936 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3937 | } |
3938 | ||
a612e298 | 3939 | \f |
07de30b9 | 3940 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3941 | NO_EVENT. */ |
07de30b9 GV |
3942 | void |
3943 | discard_mouse_events () | |
3944 | { | |
3945 | struct input_event *sp; | |
3946 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3947 | { | |
3948 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3949 | sp = kbd_buffer; | |
3950 | ||
3b8f9651 | 3951 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3952 | || sp->kind == WHEEL_EVENT |
13899bc1 | 3953 | || sp->kind == HORIZ_WHEEL_EVENT |
e416374c NR |
3954 | #ifdef HAVE_GPM |
3955 | || sp->kind == GPM_CLICK_EVENT | |
07de30b9 | 3956 | #endif |
3b8f9651 | 3957 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3958 | { |
3b8f9651 | 3959 | sp->kind = NO_EVENT; |
07de30b9 GV |
3960 | } |
3961 | } | |
3962 | } | |
eeabfe76 | 3963 | |
0bbfdc25 GM |
3964 | |
3965 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3966 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3967 | |
3b8f9651 | 3968 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3969 | the input queue, possibly leaving the input queue empty if there |
3970 | are no real input events. */ | |
3971 | ||
eeabfe76 EZ |
3972 | int |
3973 | kbd_buffer_events_waiting (discard) | |
3974 | int discard; | |
3975 | { | |
3976 | struct input_event *sp; | |
c60ee5e7 | 3977 | |
0bbfdc25 | 3978 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3979 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3980 | ++sp) |
eeabfe76 EZ |
3981 | { |
3982 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3983 | sp = kbd_buffer; | |
eeabfe76 | 3984 | } |
0bbfdc25 | 3985 | |
eeabfe76 EZ |
3986 | if (discard) |
3987 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3988 | |
3b8f9651 | 3989 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3990 | } |
0bbfdc25 | 3991 | |
07de30b9 | 3992 | \f |
0bbfdc25 GM |
3993 | /* Clear input event EVENT. */ |
3994 | ||
3995 | static INLINE void | |
3996 | clear_event (event) | |
3997 | struct input_event *event; | |
3998 | { | |
3b8f9651 | 3999 | event->kind = NO_EVENT; |
0bbfdc25 GM |
4000 | } |
4001 | ||
4002 | ||
a612e298 RS |
4003 | /* Read one event from the event buffer, waiting if necessary. |
4004 | The value is a Lisp object representing the event. | |
4005 | The value is nil for an event that should be ignored, | |
4006 | or that was handled here. | |
4007 | We always read and discard one event. */ | |
284f4730 JB |
4008 | |
4009 | static Lisp_Object | |
179f689c | 4010 | kbd_buffer_get_event (kbp, used_mouse_menu, end_time) |
410d4de9 | 4011 | KBOARD **kbp; |
83d68044 | 4012 | int *used_mouse_menu; |
179f689c | 4013 | EMACS_TIME *end_time; |
284f4730 JB |
4014 | { |
4015 | register int c; | |
4016 | Lisp_Object obj; | |
4017 | ||
a3b1a468 DN |
4018 | if (noninteractive |
4019 | /* In case we are running as a daemon, only do this before | |
4020 | detaching from the terminal. */ | |
4021 | || (IS_DAEMON && daemon_pipe[1] >= 0)) | |
284f4730 JB |
4022 | { |
4023 | c = getchar (); | |
18cd2eeb | 4024 | XSETINT (obj, c); |
f5b56972 | 4025 | *kbp = current_kboard; |
284f4730 JB |
4026 | return obj; |
4027 | } | |
4028 | ||
4029 | /* Wait until there is input available. */ | |
4030 | for (;;) | |
4031 | { | |
15d81484 MR |
4032 | /* Break loop if there's an unread command event. Needed in |
4033 | moused window autoselection which uses a timer to insert such | |
4034 | events. */ | |
4035 | if (CONSP (Vunread_command_events)) | |
4036 | break; | |
033b73e2 | 4037 | |
beecf6a1 KH |
4038 | if (kbd_fetch_ptr != kbd_store_ptr) |
4039 | break; | |
ae372f41 | 4040 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4041 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4042 | break; |
beecf6a1 | 4043 | #endif |
284f4730 JB |
4044 | |
4045 | /* If the quit flag is set, then read_char will return | |
4046 | quit_char, so that counts as "available input." */ | |
4047 | if (!NILP (Vquit_flag)) | |
4048 | quit_throw_to_read_char (); | |
4049 | ||
4050 | /* One way or another, wait until input is available; then, if | |
4051 | interrupt handlers have not read it, read it now. */ | |
4052 | ||
284f4730 JB |
4053 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
4054 | #ifdef SIGIO | |
4055 | gobble_input (0); | |
4056 | #endif /* SIGIO */ | |
beecf6a1 KH |
4057 | if (kbd_fetch_ptr != kbd_store_ptr) |
4058 | break; | |
ae372f41 | 4059 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4060 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
4061 | break; |
4062 | #endif | |
179f689c CY |
4063 | if (end_time) |
4064 | { | |
4065 | EMACS_TIME duration; | |
4066 | EMACS_GET_TIME (duration); | |
6b657e42 EZ |
4067 | if (EMACS_TIME_GE (duration, *end_time)) |
4068 | return Qnil; /* finished waiting */ | |
179f689c | 4069 | else |
6b657e42 EZ |
4070 | { |
4071 | EMACS_SUB_TIME (duration, *end_time, duration); | |
4072 | wait_reading_process_output (EMACS_SECS (duration), | |
4073 | EMACS_USECS (duration), | |
4074 | -1, 1, Qnil, NULL, 0); | |
4075 | } | |
179f689c CY |
4076 | } |
4077 | else | |
d64b707c | 4078 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 4079 | |
179f689c CY |
4080 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
4081 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
4082 | read_avail_input (1); | |
284f4730 JB |
4083 | } |
4084 | ||
303b5b3f RS |
4085 | if (CONSP (Vunread_command_events)) |
4086 | { | |
4087 | Lisp_Object first; | |
7539e11f KR |
4088 | first = XCAR (Vunread_command_events); |
4089 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
4090 | *kbp = current_kboard; |
4091 | return first; | |
4092 | } | |
4093 | ||
284f4730 JB |
4094 | /* At this point, we know that there is a readable event available |
4095 | somewhere. If the event queue is empty, then there must be a | |
4096 | mouse movement enabled and available. */ | |
beecf6a1 | 4097 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 4098 | { |
cd21b839 | 4099 | struct input_event *event; |
3e51c7b7 | 4100 | |
beecf6a1 KH |
4101 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4102 | ? kbd_fetch_ptr | |
4103 | : kbd_buffer); | |
3e51c7b7 | 4104 | |
cd21b839 | 4105 | last_event_timestamp = event->timestamp; |
cd21b839 | 4106 | |
c5fdd383 KH |
4107 | *kbp = event_to_kboard (event); |
4108 | if (*kbp == 0) | |
4109 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
beecf6a1 | 4110 | |
4bb994d1 JB |
4111 | obj = Qnil; |
4112 | ||
48e416d4 | 4113 | /* These two kinds of events get special handling |
a612e298 RS |
4114 | and don't actually appear to the command loop. |
4115 | We return nil for them. */ | |
e3f6e7c7 KS |
4116 | if (event->kind == SELECTION_REQUEST_EVENT |
4117 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 4118 | { |
598a9fa7 | 4119 | #ifdef HAVE_X11 |
1e8bd3da RS |
4120 | struct input_event copy; |
4121 | ||
4581e928 RS |
4122 | /* Remove it from the buffer before processing it, |
4123 | since otherwise swallow_events will see it | |
4124 | and process it again. */ | |
1e8bd3da | 4125 | copy = *event; |
beecf6a1 | 4126 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4127 | input_pending = readable_events (0); |
e3f6e7c7 | 4128 | x_handle_selection_event (©); |
598a9fa7 JB |
4129 | #else |
4130 | /* We're getting selection request events, but we don't have | |
4131 | a window system. */ | |
4132 | abort (); | |
4133 | #endif | |
48e416d4 RS |
4134 | } |
4135 | ||
8612b71a AR |
4136 | #if defined (HAVE_NS) |
4137 | else if (event->kind == NS_TEXT_EVENT) | |
4138 | { | |
4139 | if (event->code == KEY_NS_PUT_WORKING_TEXT) | |
4140 | obj = Fcons (intern ("ns-put-working-text"), Qnil); | |
4141 | else | |
4142 | obj = Fcons (intern ("ns-unput-working-text"), Qnil); | |
4143 | kbd_fetch_ptr = event + 1; | |
4144 | } | |
4145 | #endif | |
4146 | ||
9e2a2647 | 4147 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 4148 | || defined (HAVE_NS) |
3b8f9651 | 4149 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 4150 | { |
bbdc2092 RS |
4151 | /* Make an event (delete-frame (FRAME)). */ |
4152 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 4153 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 4154 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4155 | } |
1a578e9b | 4156 | #endif |
9e2a2647 | 4157 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 4158 | || defined (HAVE_NS) |
3b8f9651 | 4159 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
4160 | { |
4161 | /* Make an event (iconify-frame (FRAME)). */ | |
4162 | obj = Fcons (event->frame_or_window, Qnil); | |
4163 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 4164 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4165 | } |
3b8f9651 | 4166 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
4167 | { |
4168 | /* Make an event (make-frame-visible (FRAME)). */ | |
4169 | obj = Fcons (event->frame_or_window, Qnil); | |
4170 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 4171 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
4172 | } |
4173 | #endif | |
3b8f9651 | 4174 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
4175 | { |
4176 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 4177 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 4178 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 4179 | } |
9e2a2647 | 4180 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 4181 | || defined(HAVE_NS) || defined (USE_GTK) |
3b8f9651 | 4182 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
4183 | { |
4184 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 4185 | input_pending = readable_events (0); |
e649d076 RS |
4186 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
4187 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 4188 | } |
1161d367 | 4189 | #endif |
9e2a2647 | 4190 | #if defined (WINDOWSNT) |
3b8f9651 | 4191 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
4192 | { |
4193 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
d352abdf | 4194 | obj = Fcons (event->frame_or_window, Qnil); |
1161d367 GV |
4195 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
4196 | kbd_fetch_ptr = event + 1; | |
4197 | } | |
099787c1 | 4198 | #endif |
3b8f9651 | 4199 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
4200 | { |
4201 | obj = Fcons (Qsave_session, Qnil); | |
4202 | kbd_fetch_ptr = event + 1; | |
4203 | } | |
a612e298 | 4204 | /* Just discard these, by returning nil. |
c5fdd383 | 4205 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
4206 | when we need to randomly delete events from the queue. |
4207 | (They shouldn't otherwise be found in the buffer, | |
4208 | but on some machines it appears they do show up | |
c5fdd383 | 4209 | even without MULTI_KBOARD.) */ |
3b8f9651 | 4210 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 4211 | mouse events during a popup-menu call. */ |
3b8f9651 | 4212 | else if (event->kind == NO_EVENT) |
beecf6a1 | 4213 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
4214 | else if (event->kind == HELP_EVENT) |
4215 | { | |
2190735a | 4216 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 4217 | |
8dfd92c9 GM |
4218 | frame = event->frame_or_window; |
4219 | object = event->arg; | |
2e1a49ad SM |
4220 | position = make_number (event->code); |
4221 | window = event->x; | |
4222 | help = event->y; | |
0bbfdc25 | 4223 | clear_event (event); |
e4457b09 GM |
4224 | |
4225 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4226 | if (!WINDOWP (window)) |
4227 | window = Qnil; | |
4228 | obj = Fcons (Qhelp_echo, | |
4229 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4230 | } |
c51c7093 GM |
4231 | else if (event->kind == FOCUS_IN_EVENT) |
4232 | { | |
4233 | /* Notification of a FocusIn event. The frame receiving the | |
4234 | focus is in event->frame_or_window. Generate a | |
4235 | switch-frame event if necessary. */ | |
4236 | Lisp_Object frame, focus; | |
4237 | ||
4238 | frame = event->frame_or_window; | |
4239 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4240 | if (FRAMEP (focus)) | |
4241 | frame = focus; | |
4242 | ||
4243 | if (!EQ (frame, internal_last_event_frame) | |
4244 | && !EQ (frame, selected_frame)) | |
4245 | obj = make_lispy_switch_frame (frame); | |
4246 | internal_last_event_frame = frame; | |
4247 | kbd_fetch_ptr = event + 1; | |
4248 | } | |
033b73e2 MA |
4249 | #ifdef HAVE_DBUS |
4250 | else if (event->kind == DBUS_EVENT) | |
4251 | { | |
4252 | obj = make_lispy_event (event); | |
4253 | kbd_fetch_ptr = event + 1; | |
4254 | } | |
4255 | #endif | |
1e12dd87 RS |
4256 | else |
4257 | { | |
c51c7093 GM |
4258 | /* If this event is on a different frame, return a switch-frame this |
4259 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4260 | Lisp_Object frame; |
1e12dd87 | 4261 | Lisp_Object focus; |
7b4aedb9 | 4262 | |
9b8eb840 | 4263 | frame = event->frame_or_window; |
2470a66f | 4264 | if (CONSP (frame)) |
7539e11f | 4265 | frame = XCAR (frame); |
2470a66f | 4266 | else if (WINDOWP (frame)) |
1e12dd87 | 4267 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4268 | |
1e12dd87 RS |
4269 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4270 | if (! NILP (focus)) | |
4271 | frame = focus; | |
07d2b8de | 4272 | |
4c52b668 | 4273 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4274 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4275 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4276 | internal_last_event_frame = frame; |
4bb994d1 | 4277 | |
1e12dd87 RS |
4278 | /* If we didn't decide to make a switch-frame event, go ahead |
4279 | and build a real event from the queue entry. */ | |
cd21b839 | 4280 | |
1e12dd87 RS |
4281 | if (NILP (obj)) |
4282 | { | |
4283 | obj = make_lispy_event (event); | |
c60ee5e7 | 4284 | |
9e2a2647 | 4285 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 4286 | || defined(HAVE_NS) || defined (USE_GTK) |
83d68044 KH |
4287 | /* If this was a menu selection, then set the flag to inhibit |
4288 | writing to last_nonmenu_event. Don't do this if the event | |
4289 | we're returning is (menu-bar), though; that indicates the | |
4290 | beginning of the menu sequence, and we might as well leave | |
4291 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4292 | if (used_mouse_menu |
4293 | && !EQ (event->frame_or_window, event->arg) | |
4294 | && (event->kind == MENU_BAR_EVENT | |
4295 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4296 | *used_mouse_menu = 1; |
4297 | #endif | |
1e12dd87 RS |
4298 | |
4299 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4300 | clear_event (event); |
beecf6a1 | 4301 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4302 | } |
4bb994d1 | 4303 | } |
284f4730 | 4304 | } |
ae372f41 | 4305 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a612e298 | 4306 | /* Try generating a mouse motion event. */ |
f3253854 | 4307 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4308 | { |
f3253854 | 4309 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4310 | Lisp_Object bar_window; |
3c370943 | 4311 | enum scroll_bar_part part; |
e5d77022 JB |
4312 | Lisp_Object x, y; |
4313 | unsigned long time; | |
284f4730 | 4314 | |
c5fdd383 | 4315 | *kbp = current_kboard; |
6ed8eeff | 4316 | /* Note that this uses F to determine which terminal to look at. |
e177ac3a RS |
4317 | If there is no valid info, it does not store anything |
4318 | so x remains nil. */ | |
4319 | x = Qnil; | |
3b7fbceb | 4320 | |
c3b4957f | 4321 | /* XXX Can f or mouse_position_hook be NULL here? */ |
6ed8eeff KL |
4322 | if (f && FRAME_TERMINAL (f)->mouse_position_hook) |
4323 | (*FRAME_TERMINAL (f)->mouse_position_hook) (&f, 0, &bar_window, | |
4324 | &part, &x, &y, &time); | |
4bb994d1 JB |
4325 | |
4326 | obj = Qnil; | |
284f4730 | 4327 | |
4bb994d1 JB |
4328 | /* Decide if we should generate a switch-frame event. Don't |
4329 | generate switch-frame events for motion outside of all Emacs | |
4330 | frames. */ | |
e177ac3a | 4331 | if (!NILP (x) && f) |
cd21b839 | 4332 | { |
9b8eb840 | 4333 | Lisp_Object frame; |
4bb994d1 | 4334 | |
9b8eb840 | 4335 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4336 | if (NILP (frame)) |
18cd2eeb | 4337 | XSETFRAME (frame, f); |
4bb994d1 | 4338 | |
4c52b668 | 4339 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4340 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4341 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4342 | internal_last_event_frame = frame; |
cd21b839 | 4343 | } |
4bb994d1 | 4344 | |
df0f2ba1 | 4345 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4346 | return a mouse-motion event. */ |
e177ac3a | 4347 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4348 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4349 | } |
ae372f41 | 4350 | #endif /* HAVE_MOUSE || HAVE GPM */ |
284f4730 JB |
4351 | else |
4352 | /* We were promised by the above while loop that there was | |
4353 | something for us to read! */ | |
4354 | abort (); | |
4355 | ||
d9d4c147 | 4356 | input_pending = readable_events (0); |
284f4730 | 4357 | |
4c52b668 | 4358 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4359 | |
284f4730 JB |
4360 | return (obj); |
4361 | } | |
a612e298 RS |
4362 | \f |
4363 | /* Process any events that are not user-visible, | |
4364 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4365 | |
4366 | void | |
d9d4c147 KH |
4367 | swallow_events (do_display) |
4368 | int do_display; | |
3a3b9632 | 4369 | { |
87dd9b9b RS |
4370 | int old_timers_run; |
4371 | ||
beecf6a1 | 4372 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4373 | { |
4374 | struct input_event *event; | |
4375 | ||
beecf6a1 KH |
4376 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4377 | ? kbd_fetch_ptr | |
4378 | : kbd_buffer); | |
3a3b9632 RS |
4379 | |
4380 | last_event_timestamp = event->timestamp; | |
4381 | ||
4382 | /* These two kinds of events get special handling | |
4383 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4384 | if (event->kind == SELECTION_REQUEST_EVENT |
4385 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4386 | { |
4387 | #ifdef HAVE_X11 | |
4581e928 | 4388 | struct input_event copy; |
e0301c07 RS |
4389 | |
4390 | /* Remove it from the buffer before processing it, | |
4391 | since otherwise swallow_events called recursively could see it | |
4392 | and process it again. */ | |
4581e928 | 4393 | copy = *event; |
beecf6a1 | 4394 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4395 | input_pending = readable_events (0); |
e3f6e7c7 | 4396 | x_handle_selection_event (©); |
3a3b9632 RS |
4397 | #else |
4398 | /* We're getting selection request events, but we don't have | |
4399 | a window system. */ | |
4400 | abort (); | |
4401 | #endif | |
4402 | } | |
4403 | else | |
4404 | break; | |
4405 | } | |
4406 | ||
87dd9b9b | 4407 | old_timers_run = timers_run; |
a2d5fca0 | 4408 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4409 | |
4410 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4411 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4412 | } |
a612e298 | 4413 | \f |
d9d4c147 KH |
4414 | /* Record the start of when Emacs is idle, |
4415 | for the sake of running idle-time timers. */ | |
4416 | ||
5c12e63f | 4417 | static void |
d9d4c147 KH |
4418 | timer_start_idle () |
4419 | { | |
4420 | Lisp_Object timers; | |
4421 | ||
4422 | /* If we are already in the idle state, do nothing. */ | |
4423 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4424 | return; | |
4425 | ||
4426 | EMACS_GET_TIME (timer_idleness_start_time); | |
4427 | ||
3021d3a9 RS |
4428 | timer_last_idleness_start_time = timer_idleness_start_time; |
4429 | ||
d9d4c147 | 4430 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4431 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4432 | { |
4433 | Lisp_Object timer; | |
4434 | ||
7539e11f | 4435 | timer = XCAR (timers); |
d9d4c147 KH |
4436 | |
4437 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4438 | continue; | |
4439 | XVECTOR (timer)->contents[0] = Qnil; | |
4440 | } | |
4441 | } | |
4442 | ||
4443 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4444 | ||
5c12e63f | 4445 | static void |
d9d4c147 KH |
4446 | timer_stop_idle () |
4447 | { | |
4448 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4449 | } | |
4450 | ||
5c12e63f KS |
4451 | /* Resume idle timer from last idle start time. */ |
4452 | ||
4453 | static void | |
4454 | timer_resume_idle () | |
4455 | { | |
4456 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4457 | return; | |
4458 | ||
4459 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4460 | } | |
4461 | ||
e044e87c RS |
4462 | /* This is only for debugging. */ |
4463 | struct input_event last_timer_event; | |
4464 | ||
58555d81 SM |
4465 | /* List of elisp functions to call, delayed because they were generated in |
4466 | a context where Elisp could not be safely run (e.g. redisplay, signal, | |
4467 | ...). Each lement has the form (FUN . ARGS). */ | |
4468 | Lisp_Object pending_funcalls; | |
4469 | ||
4470 | extern Lisp_Object Qapply; | |
4471 | ||
c04cbc3b RS |
4472 | /* Check whether a timer has fired. To prevent larger problems we simply |
4473 | disregard elements that are not proper timers. Do not make a circular | |
4474 | timer list for the time being. | |
4475 | ||
4476 | Returns the number of seconds to wait until the next timer fires. If a | |
4477 | timer is triggering now, return zero seconds. | |
4478 | If no timer is active, return -1 seconds. | |
4479 | ||
4ec4ed6a RS |
4480 | If a timer is ripe, we run it, with quitting turned off. |
4481 | ||
4482 | DO_IT_NOW is now ignored. It used to mean that we should | |
4483 | run the timer directly instead of queueing a timer-event. | |
4484 | Now we always run timers directly. */ | |
c04cbc3b RS |
4485 | |
4486 | EMACS_TIME | |
4487 | timer_check (do_it_now) | |
4488 | int do_it_now; | |
4489 | { | |
4490 | EMACS_TIME nexttime; | |
9291c072 RS |
4491 | EMACS_TIME now, idleness_now; |
4492 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4493 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4494 | |
c04cbc3b RS |
4495 | EMACS_SET_SECS (nexttime, -1); |
4496 | EMACS_SET_USECS (nexttime, -1); | |
4497 | ||
9291c072 | 4498 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4499 | timers = Vtimer_list; |
9291c072 RS |
4500 | /* Consider the idle timers only if Emacs is idle. */ |
4501 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4502 | idle_timers = Vtimer_idle_list; | |
4503 | else | |
4504 | idle_timers = Qnil; | |
4505 | chosen_timer = Qnil; | |
4506 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4507 | |
58555d81 SM |
4508 | /* First run the code that was delayed. */ |
4509 | while (CONSP (pending_funcalls)) | |
4510 | { | |
4511 | Lisp_Object funcall = XCAR (pending_funcalls); | |
4512 | pending_funcalls = XCDR (pending_funcalls); | |
4513 | safe_call2 (Qapply, XCAR (funcall), XCDR (funcall)); | |
4514 | } | |
4515 | ||
9291c072 | 4516 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4517 | { |
9291c072 RS |
4518 | EMACS_GET_TIME (now); |
4519 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4520 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4521 | } | |
c04cbc3b | 4522 | |
9291c072 RS |
4523 | while (CONSP (timers) || CONSP (idle_timers)) |
4524 | { | |
9291c072 | 4525 | Lisp_Object *vector; |
8c907a56 | 4526 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4527 | EMACS_TIME timer_time, idle_timer_time; |
4528 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4529 | ||
4530 | /* Skip past invalid timers and timers already handled. */ | |
4531 | if (!NILP (timers)) | |
c04cbc3b | 4532 | { |
7539e11f | 4533 | timer = XCAR (timers); |
9291c072 RS |
4534 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4535 | { | |
7539e11f | 4536 | timers = XCDR (timers); |
9291c072 RS |
4537 | continue; |
4538 | } | |
4539 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4540 | |
9291c072 RS |
4541 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4542 | || !INTEGERP (vector[3]) | |
4543 | || ! NILP (vector[0])) | |
4544 | { | |
7539e11f | 4545 | timers = XCDR (timers); |
9291c072 RS |
4546 | continue; |
4547 | } | |
4548 | } | |
4549 | if (!NILP (idle_timers)) | |
4550 | { | |
7539e11f | 4551 | timer = XCAR (idle_timers); |
d9d4c147 | 4552 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4553 | { |
7539e11f | 4554 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4555 | continue; |
4556 | } | |
d9d4c147 KH |
4557 | vector = XVECTOR (timer)->contents; |
4558 | ||
4559 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4560 | || !INTEGERP (vector[3]) |
4561 | || ! NILP (vector[0])) | |
4562 | { | |
7539e11f | 4563 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4564 | continue; |
4565 | } | |
4566 | } | |
d9d4c147 | 4567 | |
9291c072 RS |
4568 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4569 | based on the next ordinary timer. | |
4570 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4571 | this timer becomes ripe (negative if it's already ripe). */ | |
4572 | if (!NILP (timers)) | |
4573 | { | |
7539e11f | 4574 | timer = XCAR (timers); |
9291c072 | 4575 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4576 | EMACS_SET_SECS (timer_time, |
4577 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4578 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4579 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4580 | } | |
ba8dfba8 | 4581 | |
9291c072 RS |
4582 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4583 | based on the next idle timer. */ | |
4584 | if (!NILP (idle_timers)) | |
4585 | { | |
7539e11f | 4586 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4587 | vector = XVECTOR (idle_timer)->contents; |
4588 | EMACS_SET_SECS (idle_timer_time, | |
4589 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4590 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4591 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4592 | } | |
ba8dfba8 | 4593 | |
9291c072 RS |
4594 | /* Decide which timer is the next timer, |
4595 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4596 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4597 | |
9291c072 RS |
4598 | if (! NILP (timers) && ! NILP (idle_timers)) |
4599 | { | |
4600 | EMACS_TIME temp; | |
4601 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4602 | if (EMACS_TIME_NEG_P (temp)) | |
4603 | { | |
4604 | chosen_timer = timer; | |
7539e11f | 4605 | timers = XCDR (timers); |
9291c072 | 4606 | difference = timer_difference; |
c04cbc3b | 4607 | } |
d9d4c147 | 4608 | else |
d9d4c147 | 4609 | { |
9291c072 | 4610 | chosen_timer = idle_timer; |
7539e11f | 4611 | idle_timers = XCDR (idle_timers); |
9291c072 | 4612 | difference = idle_timer_difference; |
d9d4c147 | 4613 | } |
7ea13e12 | 4614 | } |
9291c072 RS |
4615 | else if (! NILP (timers)) |
4616 | { | |
4617 | chosen_timer = timer; | |
7539e11f | 4618 | timers = XCDR (timers); |
9291c072 RS |
4619 | difference = timer_difference; |
4620 | } | |
4621 | else | |
4622 | { | |
4623 | chosen_timer = idle_timer; | |
7539e11f | 4624 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4625 | difference = idle_timer_difference; |
4626 | } | |
4627 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4628 | |
bd55b860 | 4629 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4630 | if (EMACS_TIME_NEG_P (difference) |
4631 | || (EMACS_SECS (difference) == 0 | |
4632 | && EMACS_USECS (difference) == 0)) | |
4633 | { | |
4634 | if (NILP (vector[0])) | |
4635 | { | |
331379bf | 4636 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4637 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4638 | |
9291c072 RS |
4639 | /* Mark the timer as triggered to prevent problems if the lisp |
4640 | code fails to reschedule it right. */ | |
4641 | vector[0] = Qt; | |
4642 | ||
d925fb39 | 4643 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4644 | |
d925fb39 | 4645 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4646 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4647 | timers_run++; |
d925fb39 | 4648 | unbind_to (count, Qnil); |
4ec4ed6a | 4649 | |
d925fb39 RS |
4650 | /* Since we have handled the event, |
4651 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4652 | } |
4653 | } | |
4654 | else | |
4655 | /* When we encounter a timer that is still waiting, | |
4656 | return the amount of time to wait before it is ripe. */ | |
4657 | { | |
4658 | UNGCPRO; | |
9291c072 RS |
4659 | return difference; |
4660 | } | |
c04cbc3b | 4661 | } |
9291c072 | 4662 | |
7ea13e12 RS |
4663 | /* No timers are pending in the future. */ |
4664 | /* Return 0 if we generated an event, and -1 if not. */ | |
4665 | UNGCPRO; | |
c04cbc3b RS |
4666 | return nexttime; |
4667 | } | |
ff458d81 RS |
4668 | |
4669 | DEFUN ("current-idle-time", Fcurrent_idle_time, Scurrent_idle_time, 0, 0, 0, | |
3a704bd7 RS |
4670 | doc: /* Return the current length of Emacs idleness, or nil. |
4671 | The value when Emacs is idle is a list of three integers. The first has the | |
ff458d81 RS |
4672 | most significant 16 bits of the seconds, while the second has the |
4673 | least significant 16 bits. The third integer gives the microsecond | |
4674 | count. | |
4675 | ||
3a704bd7 RS |
4676 | The value when Emacs is not idle is nil. |
4677 | ||
ff458d81 RS |
4678 | The microsecond count is zero on systems that do not provide |
4679 | resolution finer than a second. */) | |
4680 | () | |
4681 | { | |
ff458d81 RS |
4682 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) |
4683 | { | |
966949b0 | 4684 | EMACS_TIME now, idleness_now; |
ff458d81 | 4685 | |
966949b0 KS |
4686 | EMACS_GET_TIME (now); |
4687 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
ff458d81 | 4688 | |
966949b0 KS |
4689 | return list3 (make_number ((EMACS_SECS (idleness_now) >> 16) & 0xffff), |
4690 | make_number ((EMACS_SECS (idleness_now) >> 0) & 0xffff), | |
4691 | make_number (EMACS_USECS (idleness_now))); | |
ff458d81 RS |
4692 | } |
4693 | ||
4694 | return Qnil; | |
4695 | } | |
c04cbc3b | 4696 | \f |
284f4730 | 4697 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4698 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4699 | static Lisp_Object func_key_syms; |
4700 | static Lisp_Object mouse_syms; | |
8006e4bb | 4701 | static Lisp_Object wheel_syms; |
a24dc617 | 4702 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4703 | |
e9bf89a0 RS |
4704 | /* This is a list of keysym codes for special "accent" characters. |
4705 | It parallels lispy_accent_keys. */ | |
4706 | ||
4707 | static int lispy_accent_codes[] = | |
4708 | { | |
79a7046c | 4709 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4710 | XK_dead_circumflex, |
79a7046c RS |
4711 | #else |
4712 | 0, | |
4713 | #endif | |
4714 | #ifdef XK_dead_grave | |
e9bf89a0 | 4715 | XK_dead_grave, |
79a7046c RS |
4716 | #else |
4717 | 0, | |
4718 | #endif | |
4719 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4720 | XK_dead_tilde, |
79a7046c RS |
4721 | #else |
4722 | 0, | |
4723 | #endif | |
4724 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4725 | XK_dead_diaeresis, |
79a7046c RS |
4726 | #else |
4727 | 0, | |
4728 | #endif | |
4729 | #ifdef XK_dead_macron | |
e9bf89a0 | 4730 | XK_dead_macron, |
79a7046c RS |
4731 | #else |
4732 | 0, | |
4733 | #endif | |
4734 | #ifdef XK_dead_degree | |
e9bf89a0 | 4735 | XK_dead_degree, |
79a7046c RS |
4736 | #else |
4737 | 0, | |
4738 | #endif | |
4739 | #ifdef XK_dead_acute | |
e9bf89a0 | 4740 | XK_dead_acute, |
79a7046c RS |
4741 | #else |
4742 | 0, | |
4743 | #endif | |
4744 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4745 | XK_dead_cedilla, |
79a7046c RS |
4746 | #else |
4747 | 0, | |
4748 | #endif | |
4749 | #ifdef XK_dead_breve | |
e9bf89a0 | 4750 | XK_dead_breve, |
79a7046c RS |
4751 | #else |
4752 | 0, | |
4753 | #endif | |
4754 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4755 | XK_dead_ogonek, |
79a7046c RS |
4756 | #else |
4757 | 0, | |
4758 | #endif | |
4759 | #ifdef XK_dead_caron | |
e9bf89a0 | 4760 | XK_dead_caron, |
79a7046c RS |
4761 | #else |
4762 | 0, | |
4763 | #endif | |
4764 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4765 | XK_dead_doubleacute, |
79a7046c RS |
4766 | #else |
4767 | 0, | |
4768 | #endif | |
4769 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4770 | XK_dead_abovedot, |
79a7046c RS |
4771 | #else |
4772 | 0, | |
4773 | #endif | |
ed3230db DL |
4774 | #ifdef XK_dead_abovering |
4775 | XK_dead_abovering, | |
4776 | #else | |
4777 | 0, | |
4778 | #endif | |
4779 | #ifdef XK_dead_iota | |
4780 | XK_dead_iota, | |
4781 | #else | |
4782 | 0, | |
4783 | #endif | |
4784 | #ifdef XK_dead_belowdot | |
4785 | XK_dead_belowdot, | |
4786 | #else | |
4787 | 0, | |
4788 | #endif | |
4789 | #ifdef XK_dead_voiced_sound | |
4790 | XK_dead_voiced_sound, | |
4791 | #else | |
4792 | 0, | |
4793 | #endif | |
4794 | #ifdef XK_dead_semivoiced_sound | |
4795 | XK_dead_semivoiced_sound, | |
4796 | #else | |
4797 | 0, | |
4798 | #endif | |
4799 | #ifdef XK_dead_hook | |
4800 | XK_dead_hook, | |
4801 | #else | |
4802 | 0, | |
4803 | #endif | |
4804 | #ifdef XK_dead_horn | |
4805 | XK_dead_horn, | |
4806 | #else | |
4807 | 0, | |
4808 | #endif | |
e9bf89a0 RS |
4809 | }; |
4810 | ||
4811 | /* This is a list of Lisp names for special "accent" characters. | |
4812 | It parallels lispy_accent_codes. */ | |
4813 | ||
4814 | static char *lispy_accent_keys[] = | |
4815 | { | |
4816 | "dead-circumflex", | |
4817 | "dead-grave", | |
4818 | "dead-tilde", | |
4819 | "dead-diaeresis", | |
4820 | "dead-macron", | |
4821 | "dead-degree", | |
4822 | "dead-acute", | |
4823 | "dead-cedilla", | |
4824 | "dead-breve", | |
4825 | "dead-ogonek", | |
4826 | "dead-caron", | |
4827 | "dead-doubleacute", | |
4828 | "dead-abovedot", | |
ed3230db DL |
4829 | "dead-abovering", |
4830 | "dead-iota", | |
4831 | "dead-belowdot", | |
4832 | "dead-voiced-sound", | |
4833 | "dead-semivoiced-sound", | |
4834 | "dead-hook", | |
4835 | "dead-horn", | |
e9bf89a0 RS |
4836 | }; |
4837 | ||
e98a93eb GV |
4838 | #ifdef HAVE_NTGUI |
4839 | #define FUNCTION_KEY_OFFSET 0x0 | |
4840 | ||
4841 | char *lispy_function_keys[] = | |
4842 | { | |
4843 | 0, /* 0 */ | |
c60ee5e7 | 4844 | |
e98a93eb GV |
4845 | 0, /* VK_LBUTTON 0x01 */ |
4846 | 0, /* VK_RBUTTON 0x02 */ | |
4847 | "cancel", /* VK_CANCEL 0x03 */ | |
4848 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4849 | |
e98a93eb | 4850 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4851 | |
e98a93eb GV |
4852 | "backspace", /* VK_BACK 0x08 */ |
4853 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4854 | |
e98a93eb | 4855 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4856 | |
e98a93eb GV |
4857 | "clear", /* VK_CLEAR 0x0C */ |
4858 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4859 | |
e98a93eb | 4860 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4861 | |
1161d367 GV |
4862 | 0, /* VK_SHIFT 0x10 */ |
4863 | 0, /* VK_CONTROL 0x11 */ | |
4864 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4865 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4866 | "capslock", /* VK_CAPITAL 0x14 */ |
ba991a0e JR |
4867 | "kana", /* VK_KANA/VK_HANGUL 0x15 */ |
4868 | 0, /* 0x16 */ | |
4869 | "junja", /* VK_JUNJA 0x17 */ | |
4870 | "final", /* VK_FINAL 0x18 */ | |
4871 | "kanji", /* VK_KANJI/VK_HANJA 0x19 */ | |
4872 | 0, /* 0x1A */ | |
1161d367 | 4873 | "escape", /* VK_ESCAPE 0x1B */ |
ba991a0e JR |
4874 | "convert", /* VK_CONVERT 0x1C */ |
4875 | "non-convert", /* VK_NONCONVERT 0x1D */ | |
4876 | "accept", /* VK_ACCEPT 0x1E */ | |
4877 | "mode-change", /* VK_MODECHANGE 0x1F */ | |
e98a93eb GV |
4878 | 0, /* VK_SPACE 0x20 */ |
4879 | "prior", /* VK_PRIOR 0x21 */ | |
4880 | "next", /* VK_NEXT 0x22 */ | |
4881 | "end", /* VK_END 0x23 */ | |
4882 | "home", /* VK_HOME 0x24 */ | |
4883 | "left", /* VK_LEFT 0x25 */ | |
4884 | "up", /* VK_UP 0x26 */ | |
4885 | "right", /* VK_RIGHT 0x27 */ | |
4886 | "down", /* VK_DOWN 0x28 */ | |
4887 | "select", /* VK_SELECT 0x29 */ | |
4888 | "print", /* VK_PRINT 0x2A */ | |
4889 | "execute", /* VK_EXECUTE 0x2B */ | |
4890 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4891 | "insert", /* VK_INSERT 0x2D */ | |
4892 | "delete", /* VK_DELETE 0x2E */ | |
4893 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4894 | |
e98a93eb | 4895 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4896 | |
e98a93eb | 4897 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4898 | |
e98a93eb | 4899 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4900 | |
e98a93eb | 4901 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4902 | |
4903 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4904 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4905 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4906 | |
e376f90d RS |
4907 | "lwindow", /* VK_LWIN 0x5B */ |
4908 | "rwindow", /* VK_RWIN 0x5C */ | |
4909 | "apps", /* VK_APPS 0x5D */ | |
ba991a0e JR |
4910 | 0, /* 0x5E */ |
4911 | "sleep", | |
e98a93eb GV |
4912 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4913 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4914 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4915 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4916 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4917 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4918 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4919 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4920 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4921 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4922 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4923 | "kp-add", /* VK_ADD 0x6B */ | |
4924 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4925 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4926 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4927 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4928 | "f1", /* VK_F1 0x70 */ | |
4929 | "f2", /* VK_F2 0x71 */ | |
4930 | "f3", /* VK_F3 0x72 */ | |
4931 | "f4", /* VK_F4 0x73 */ | |
4932 | "f5", /* VK_F5 0x74 */ | |
4933 | "f6", /* VK_F6 0x75 */ | |
4934 | "f7", /* VK_F7 0x76 */ | |
4935 | "f8", /* VK_F8 0x77 */ | |
4936 | "f9", /* VK_F9 0x78 */ | |
4937 | "f10", /* VK_F10 0x79 */ | |
4938 | "f11", /* VK_F11 0x7A */ | |
4939 | "f12", /* VK_F12 0x7B */ | |
4940 | "f13", /* VK_F13 0x7C */ | |
4941 | "f14", /* VK_F14 0x7D */ | |
4942 | "f15", /* VK_F15 0x7E */ | |
4943 | "f16", /* VK_F16 0x7F */ | |
4944 | "f17", /* VK_F17 0x80 */ | |
4945 | "f18", /* VK_F18 0x81 */ | |
4946 | "f19", /* VK_F19 0x82 */ | |
4947 | "f20", /* VK_F20 0x83 */ | |
4948 | "f21", /* VK_F21 0x84 */ | |
4949 | "f22", /* VK_F22 0x85 */ | |
4950 | "f23", /* VK_F23 0x86 */ | |
4951 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4952 | |
e98a93eb GV |
4953 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4954 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4955 | |
e98a93eb GV |
4956 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4957 | "scroll", /* VK_SCROLL 0x91 */ | |
ba991a0e JR |
4958 | /* Not sure where the following block comes from. |
4959 | Windows headers have NEC and Fujitsu specific keys in | |
4960 | this block, but nothing generic. */ | |
e376f90d RS |
4961 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4962 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4963 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4964 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4965 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4966 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4967 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4968 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4969 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4970 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4971 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4972 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4973 | ||
4974 | 0, 0, /* 0x9E .. 0x9F */ | |
4975 | ||
e98a93eb GV |
4976 | /* |
4977 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4978 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb | 4979 | * No other API or message will distinguish left and right keys this way. |
ba991a0e | 4980 | * 0xA0 .. 0xA5 |
e98a93eb | 4981 | */ |
ba991a0e | 4982 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4983 | |
ba991a0e JR |
4984 | /* Multimedia keys. These are handled as WM_APPCOMMAND, which allows us |
4985 | to enable them selectively, and gives access to a few more functions. | |
4986 | See lispy_multimedia_keys below. */ | |
4987 | 0, 0, 0, 0, 0, 0, 0, /* 0xA6 .. 0xAC Browser */ | |
4988 | 0, 0, 0, /* 0xAD .. 0xAF Volume */ | |
4989 | 0, 0, 0, 0, /* 0xB0 .. 0xB3 Media */ | |
4990 | 0, 0, 0, 0, /* 0xB4 .. 0xB7 Apps */ | |
c60ee5e7 | 4991 | |
ba991a0e JR |
4992 | /* 0xB8 .. 0xC0 "OEM" keys - all seem to be punctuation. */ |
4993 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4994 | |
ba991a0e JR |
4995 | /* 0xC1 - 0xDA unallocated, 0xDB-0xDF more OEM keys */ |
4996 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4997 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4998 | |
ba991a0e JR |
4999 | 0, /* 0xE0 */ |
5000 | "ax", /* VK_OEM_AX 0xE1 */ | |
5001 | 0, /* VK_OEM_102 0xE2 */ | |
5002 | "ico-help", /* VK_ICO_HELP 0xE3 */ | |
5003 | "ico-00", /* VK_ICO_00 0xE4 */ | |
5004 | 0, /* VK_PROCESSKEY 0xE5 */ | |
5005 | "ico-clear", /* VK_ICO_CLEAR 0xE6 */ | |
5006 | "packet", /* VK_PACKET 0xE7 */ | |
5007 | 0, /* 0xE8 */ | |
5008 | "reset", /* VK_OEM_RESET 0xE9 */ | |
5009 | "jump", /* VK_OEM_JUMP 0xEA */ | |
5010 | "oem-pa1", /* VK_OEM_PA1 0xEB */ | |
5011 | "oem-pa2", /* VK_OEM_PA2 0xEC */ | |
5012 | "oem-pa3", /* VK_OEM_PA3 0xED */ | |
5013 | "wsctrl", /* VK_OEM_WSCTRL 0xEE */ | |
5014 | "cusel", /* VK_OEM_CUSEL 0xEF */ | |
5015 | "oem-attn", /* VK_OEM_ATTN 0xF0 */ | |
5016 | "finish", /* VK_OEM_FINISH 0xF1 */ | |
5017 | "copy", /* VK_OEM_COPY 0xF2 */ | |
5018 | "auto", /* VK_OEM_AUTO 0xF3 */ | |
5019 | "enlw", /* VK_OEM_ENLW 0xF4 */ | |
5020 | "backtab", /* VK_OEM_BACKTAB 0xF5 */ | |
e98a93eb GV |
5021 | "attn", /* VK_ATTN 0xF6 */ |
5022 | "crsel", /* VK_CRSEL 0xF7 */ | |
5023 | "exsel", /* VK_EXSEL 0xF8 */ | |
5024 | "ereof", /* VK_EREOF 0xF9 */ | |
5025 | "play", /* VK_PLAY 0xFA */ | |
5026 | "zoom", /* VK_ZOOM 0xFB */ | |
5027 | "noname", /* VK_NONAME 0xFC */ | |
5028 | "pa1", /* VK_PA1 0xFD */ | |
5029 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 5030 | 0 /* 0xFF */ |
e98a93eb GV |
5031 | }; |
5032 | ||
ba991a0e JR |
5033 | /* Some of these duplicate the "Media keys" on newer keyboards, |
5034 | but they are delivered to the application in a different way. */ | |
5035 | static char *lispy_multimedia_keys[] = | |
5036 | { | |
5037 | 0, | |
5038 | "browser-back", | |
5039 | "browser-forward", | |
5040 | "browser-refresh", | |
5041 | "browser-stop", | |
5042 | "browser-search", | |
5043 | "browser-favorites", | |
5044 | "browser-home", | |
5045 | "volume-mute", | |
5046 | "volume-down", | |
5047 | "volume-up", | |
5048 | "media-next", | |
5049 | "media-previous", | |
5050 | "media-stop", | |
5051 | "media-play-pause", | |
5052 | "mail", | |
5053 | "media-select", | |
5054 | "app-1", | |
5055 | "app-2", | |
5056 | "bass-down", | |
5057 | "bass-boost", | |
5058 | "bass-up", | |
5059 | "treble-down", | |
5060 | "treble-up", | |
5061 | "mic-volume-mute", | |
5062 | "mic-volume-down", | |
5063 | "mic-volume-up", | |
5064 | "help", | |
5065 | "find", | |
5066 | "new", | |
5067 | "open", | |
5068 | "close", | |
5069 | "save", | |
5070 | "print", | |
5071 | "undo", | |
5072 | "redo", | |
5073 | "copy", | |
5074 | "cut", | |
5075 | "paste", | |
5076 | "mail-reply", | |
5077 | "mail-forward", | |
5078 | "mail-send", | |
5079 | "spell-check", | |
5080 | "toggle-dictate-command", | |
5081 | "mic-toggle", | |
5082 | "correction-list", | |
5083 | "media-play", | |
5084 | "media-pause", | |
5085 | "media-record", | |
5086 | "media-fast-forward", | |
5087 | "media-rewind", | |
5088 | "media-channel-up", | |
5089 | "media-channel-down" | |
5090 | }; | |
5091 | ||
04f215f0 | 5092 | #else /* not HAVE_NTGUI */ |
e98a93eb | 5093 | |
ed3230db DL |
5094 | /* This should be dealt with in XTread_socket now, and that doesn't |
5095 | depend on the client system having the Kana syms defined. See also | |
5096 | the XK_kana_A case below. */ | |
5097 | #if 0 | |
37cd9f30 KH |
5098 | #ifdef XK_kana_A |
5099 | static char *lispy_kana_keys[] = | |
5100 | { | |
5101 | /* X Keysym value */ | |
5102 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
5103 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
5104 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
5105 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
5106 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
5107 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
5108 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
5109 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
5110 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
5111 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 5112 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
5113 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
5114 | "kana-i", "kana-u", "kana-e", "kana-o", | |
5115 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
5116 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
5117 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
5118 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
5119 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
5120 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
5121 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
5122 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
5123 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
5124 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
5125 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
5126 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
5127 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
5128 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
5129 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
5130 | }; | |
5131 | #endif /* XK_kana_A */ | |
ed3230db | 5132 | #endif /* 0 */ |
37cd9f30 | 5133 | |
04f215f0 RS |
5134 | #define FUNCTION_KEY_OFFSET 0xff00 |
5135 | ||
284f4730 JB |
5136 | /* You'll notice that this table is arranged to be conveniently |
5137 | indexed by X Windows keysym values. */ | |
5138 | static char *lispy_function_keys[] = | |
5139 | { | |
5140 | /* X Keysym value */ | |
5141 | ||
75045dcb RS |
5142 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
5143 | "backspace", "tab", "linefeed", "clear", | |
5144 | 0, "return", 0, 0, | |
5145 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
5146 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 5147 | 0, 0, 0, 0, |
75045dcb RS |
5148 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
5149 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
5150 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
5151 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
5152 | "eisu-toggle", /* 0xff30...3f */ | |
5153 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
5154 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
5155 | ||
75045dcb RS |
5156 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
5157 | "down", "prior", "next", "end", | |
5158 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5159 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
5160 | "print", | |
5161 | "execute", | |
5162 | "insert", | |
5163 | 0, /* 0xff64 */ | |
5164 | "undo", | |
5165 | "redo", | |
5166 | "menu", | |
5167 | "find", | |
5168 | "cancel", | |
5169 | "help", | |
5170 | "break", /* 0xff6b */ | |
5171 | ||
75045dcb RS |
5172 | 0, 0, 0, 0, |
5173 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
5174 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
5175 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
5176 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5177 | "kp-tab", /* 0xff89 */ | |
5178 | 0, 0, 0, | |
5179 | "kp-enter", /* 0xff8d */ | |
5180 | 0, 0, 0, | |
5181 | "kp-f1", /* 0xff91 */ | |
5182 | "kp-f2", | |
5183 | "kp-f3", | |
5184 | "kp-f4", | |
872157e7 RS |
5185 | "kp-home", /* 0xff95 */ |
5186 | "kp-left", | |
5187 | "kp-up", | |
5188 | "kp-right", | |
5189 | "kp-down", | |
5190 | "kp-prior", /* kp-page-up */ | |
5191 | "kp-next", /* kp-page-down */ | |
5192 | "kp-end", | |
5193 | "kp-begin", | |
5194 | "kp-insert", | |
5195 | "kp-delete", | |
5196 | 0, /* 0xffa0 */ | |
5197 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5198 | "kp-multiply", /* 0xffaa */ |
5199 | "kp-add", | |
5200 | "kp-separator", | |
5201 | "kp-subtract", | |
5202 | "kp-decimal", | |
5203 | "kp-divide", /* 0xffaf */ | |
5204 | "kp-0", /* 0xffb0 */ | |
5205 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
5206 | 0, /* 0xffba */ | |
5207 | 0, 0, | |
5208 | "kp-equal", /* 0xffbd */ | |
5209 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
5210 | "f2", |
5211 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
5212 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
5213 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
5214 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
5215 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
5216 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5217 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
5218 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 5219 | }; |
284f4730 | 5220 | |
04f215f0 RS |
5221 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
5222 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
5223 | ||
5224 | static char *iso_lispy_function_keys[] = | |
5225 | { | |
5226 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
5227 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
5228 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
5229 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
5230 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
5231 | "iso-move-line-up", "iso-move-line-down", |
5232 | "iso-partial-line-up", "iso-partial-line-down", | |
5233 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
5234 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
5235 | "iso-release-margin-left", "iso-release-margin-right", | |
5236 | "iso-release-both-margins", | |
5237 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
5238 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
5239 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
5240 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
5241 | }; | |
5242 | ||
5243 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 5244 | |
8e1e4240 | 5245 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 5246 | |
8006e4bb JR |
5247 | static char *lispy_wheel_names[] = |
5248 | { | |
13899bc1 | 5249 | "wheel-up", "wheel-down", "wheel-left", "wheel-right" |
8006e4bb JR |
5250 | }; |
5251 | ||
a24dc617 RS |
5252 | /* drag-n-drop events are generated when a set of selected files are |
5253 | dragged from another application and dropped onto an Emacs window. */ | |
5254 | static char *lispy_drag_n_drop_names[] = | |
5255 | { | |
5256 | "drag-n-drop" | |
5257 | }; | |
5258 | ||
3c370943 | 5259 | /* Scroll bar parts. */ |
4bb994d1 | 5260 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 5261 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 5262 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 5263 | |
3c370943 JB |
5264 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
5265 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 5266 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 5267 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
5268 | }; |
5269 | ||
7b4aedb9 | 5270 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 5271 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
5272 | |
5273 | The elements have the form | |
5274 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
5275 | where REST is the cdr of a position as it would be reported in the event. | |
5276 | ||
5277 | The make_lispy_event function stores positions here to tell the | |
5278 | difference between click and drag events, and to store the starting | |
5279 | location to be included in drag events. */ | |
5280 | ||
5281 | static Lisp_Object button_down_location; | |
88cb0656 | 5282 | |
fbcd35bd JB |
5283 | /* Information about the most recent up-going button event: Which |
5284 | button, what location, and what time. */ | |
5285 | ||
559f9d04 RS |
5286 | static int last_mouse_button; |
5287 | static int last_mouse_x; | |
5288 | static int last_mouse_y; | |
5289 | static unsigned long button_down_time; | |
fbcd35bd | 5290 | |
222d557c GM |
5291 | /* The maximum time between clicks to make a double-click, or Qnil to |
5292 | disable double-click detection, or Qt for no time limit. */ | |
5293 | ||
564dc952 | 5294 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 5295 | |
222d557c GM |
5296 | /* Maximum number of pixels the mouse may be moved between clicks |
5297 | to make a double-click. */ | |
5298 | ||
31ade731 | 5299 | EMACS_INT double_click_fuzz; |
222d557c | 5300 | |
fbcd35bd JB |
5301 | /* The number of clicks in this multiple-click. */ |
5302 | ||
5303 | int double_click_count; | |
5304 | ||
6b61353c KH |
5305 | /* Return position of a mouse click or wheel event */ |
5306 | ||
5307 | static Lisp_Object | |
5308 | make_lispy_position (f, x, y, time) | |
5309 | struct frame *f; | |
5310 | Lisp_Object *x, *y; | |
5311 | unsigned long time; | |
5312 | { | |
5313 | Lisp_Object window; | |
5314 | enum window_part part; | |
5315 | Lisp_Object posn = Qnil; | |
5316 | Lisp_Object extra_info = Qnil; | |
5317 | int wx, wy; | |
5318 | ||
5319 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
5320 | if (f) | |
5321 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
5322 | &part, &wx, &wy, 0); | |
5323 | else | |
5324 | window = Qnil; | |
5325 | ||
5326 | if (WINDOWP (window)) | |
5327 | { | |
5328 | /* It's a click in window window at frame coordinates (x,y) */ | |
5329 | struct window *w = XWINDOW (window); | |
5330 | Lisp_Object string_info = Qnil; | |
5331 | int textpos = -1, rx = -1, ry = -1; | |
5332 | int dx = -1, dy = -1; | |
5333 | int width = -1, height = -1; | |
5334 | Lisp_Object object = Qnil; | |
5335 | ||
5336 | /* Set event coordinates to window-relative coordinates | |
5337 | for constructing the Lisp event below. */ | |
5338 | XSETINT (*x, wx); | |
5339 | XSETINT (*y, wy); | |
5340 | ||
6507c4c7 KS |
5341 | if (part == ON_TEXT) |
5342 | { | |
5343 | wx += WINDOW_LEFT_MARGIN_WIDTH (w); | |
5344 | } | |
5345 | else if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
6b61353c KH |
5346 | { |
5347 | /* Mode line or header line. Look for a string under | |
5348 | the mouse that may have a `local-map' property. */ | |
5349 | Lisp_Object string; | |
5350 | int charpos; | |
5351 | ||
5352 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5353 | rx = wx, ry = wy; | |
5354 | string = mode_line_string (w, part, &rx, &ry, &charpos, | |
5355 | &object, &dx, &dy, &width, &height); | |
5356 | if (STRINGP (string)) | |
5357 | string_info = Fcons (string, make_number (charpos)); | |
93730342 CY |
5358 | if (w == XWINDOW (selected_window) |
5359 | && current_buffer == XBUFFER (w->buffer)) | |
6b61353c KH |
5360 | textpos = PT; |
5361 | else | |
5362 | textpos = XMARKER (w->pointm)->charpos; | |
5363 | } | |
5364 | else if (part == ON_VERTICAL_BORDER) | |
5365 | { | |
5366 | posn = Qvertical_line; | |
5367 | wx = -1; | |
5368 | dx = 0; | |
5369 | width = 1; | |
5370 | } | |
5371 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5372 | { | |
5373 | Lisp_Object string; | |
5374 | int charpos; | |
5375 | ||
5376 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
5377 | rx = wx, ry = wy; | |
5378 | string = marginal_area_string (w, part, &rx, &ry, &charpos, | |
5379 | &object, &dx, &dy, &width, &height); | |
5380 | if (STRINGP (string)) | |
5381 | string_info = Fcons (string, make_number (charpos)); | |
a65fc2c3 KS |
5382 | if (part == ON_LEFT_MARGIN) |
5383 | wx = 0; | |
5384 | else | |
5385 | wx = window_box_right_offset (w, TEXT_AREA) - 1; | |
6b61353c | 5386 | } |
a65fc2c3 | 5387 | else if (part == ON_LEFT_FRINGE) |
6b61353c | 5388 | { |
a65fc2c3 | 5389 | posn = Qleft_fringe; |
6b61353c KH |
5390 | rx = 0; |
5391 | dx = wx; | |
a65fc2c3 KS |
5392 | wx = (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) |
5393 | ? 0 | |
5394 | : window_box_width (w, LEFT_MARGIN_AREA)); | |
5395 | dx -= wx; | |
3d566707 | 5396 | } |
a65fc2c3 | 5397 | else if (part == ON_RIGHT_FRINGE) |
3d566707 | 5398 | { |
a65fc2c3 | 5399 | posn = Qright_fringe; |
3d566707 | 5400 | rx = 0; |
45de137a | 5401 | dx = wx; |
a65fc2c3 KS |
5402 | wx = (window_box_width (w, LEFT_MARGIN_AREA) |
5403 | + window_box_width (w, TEXT_AREA) | |
5404 | + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5405 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5406 | : 0)); | |
5407 | dx -= wx; | |
5408 | } | |
5409 | else | |
5410 | { | |
5411 | /* Note: We have no special posn for part == ON_SCROLL_BAR. */ | |
5412 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); | |
6b61353c KH |
5413 | } |
5414 | ||
5415 | if (textpos < 0) | |
5416 | { | |
5417 | Lisp_Object string2, object2 = Qnil; | |
5418 | struct display_pos p; | |
5419 | int dx2, dy2; | |
5420 | int width2, height2; | |
6b61353c KH |
5421 | string2 = buffer_posn_from_coords (w, &wx, &wy, &p, |
5422 | &object2, &dx2, &dy2, | |
5423 | &width2, &height2); | |
5424 | textpos = CHARPOS (p.pos); | |
5425 | if (rx < 0) rx = wx; | |
5426 | if (ry < 0) ry = wy; | |
5427 | if (dx < 0) dx = dx2; | |
5428 | if (dy < 0) dy = dy2; | |
5429 | if (width < 0) width = width2; | |
5430 | if (height < 0) height = height2; | |
5431 | ||
5432 | if (NILP (posn)) | |
5433 | { | |
5434 | posn = make_number (textpos); | |
5435 | if (STRINGP (string2)) | |
5436 | string_info = Fcons (string2, | |
5437 | make_number (CHARPOS (p.string_pos))); | |
5438 | } | |
5439 | if (NILP (object)) | |
5440 | object = object2; | |
5441 | } | |
5442 | ||
5443 | #ifdef HAVE_WINDOW_SYSTEM | |
5444 | if (IMAGEP (object)) | |
5445 | { | |
5446 | Lisp_Object image_map, hotspot; | |
5447 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5448 | !NILP (image_map)) | |
5449 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5450 | CONSP (hotspot)) | |
5451 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5452 | posn = XCAR (hotspot); | |
5453 | } | |
5454 | #endif | |
5455 | ||
5456 | /* Object info */ | |
5457 | extra_info = Fcons (object, | |
5458 | Fcons (Fcons (make_number (dx), | |
5459 | make_number (dy)), | |
5460 | Fcons (Fcons (make_number (width), | |
5461 | make_number (height)), | |
5462 | Qnil))); | |
5463 | ||
5464 | /* String info */ | |
5465 | extra_info = Fcons (string_info, | |
5466 | Fcons (make_number (textpos), | |
5467 | Fcons (Fcons (make_number (rx), | |
5468 | make_number (ry)), | |
5469 | extra_info))); | |
5470 | } | |
5471 | else if (f != 0) | |
5472 | { | |
5473 | XSETFRAME (window, f); | |
5474 | } | |
5475 | else | |
5476 | { | |
5477 | window = Qnil; | |
5478 | XSETFASTINT (*x, 0); | |
5479 | XSETFASTINT (*y, 0); | |
5480 | } | |
5481 | ||
5482 | return Fcons (window, | |
5483 | Fcons (posn, | |
5484 | Fcons (Fcons (*x, *y), | |
5485 | Fcons (make_number (time), | |
5486 | extra_info)))); | |
5487 | } | |
5488 | ||
284f4730 JB |
5489 | /* Given a struct input_event, build the lisp event which represents |
5490 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5491 | movement buffer, which should have a movement event in it. |
5492 | ||
5493 | Note that events must be passed to this function in the order they | |
5494 | are received; this function stores the location of button presses | |
5495 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5496 | |
5497 | static Lisp_Object | |
5498 | make_lispy_event (event) | |
5499 | struct input_event *event; | |
5500 | { | |
79a7046c RS |
5501 | int i; |
5502 | ||
0220c518 | 5503 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5504 | { |
284f4730 | 5505 | /* A simple keystroke. */ |
3b8f9651 | 5506 | case ASCII_KEYSTROKE_EVENT: |
3b8f9651 | 5507 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5508 | { |
5509 | Lisp_Object lispy_c; | |
24d80a06 | 5510 | int c = event->code; |
6d0867e5 SM |
5511 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
5512 | { | |
5513 | c &= 0377; | |
5514 | eassert (c == event->code); | |
5515 | /* Turn ASCII characters into control characters | |
5516 | when proper. */ | |
5517 | if (event->modifiers & ctrl_modifier) | |
5518 | { | |
5519 | c = make_ctrl_char (c); | |
5520 | event->modifiers &= ~ctrl_modifier; | |
5521 | } | |
5522 | } | |
a50e723f | 5523 | |
6d0867e5 SM |
5524 | /* Add in the other modifier bits. The shift key was taken care |
5525 | of by the X code. */ | |
24d80a06 SM |
5526 | c |= (event->modifiers |
5527 | & (meta_modifier | alt_modifier | |
5528 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
6d0867e5 SM |
5529 | /* Distinguish Shift-SPC from SPC. */ |
5530 | if ((event->code) == 040 | |
5531 | && event->modifiers & shift_modifier) | |
5532 | c |= shift_modifier; | |
24d80a06 SM |
5533 | button_down_time = 0; |
5534 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5535 | return lispy_c; |
5536 | } | |
5537 | ||
284f4730 JB |
5538 | /* A function key. The symbol may need to have modifier prefixes |
5539 | tacked onto it. */ | |
3b8f9651 | 5540 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5541 | button_down_time = 0; |
e9bf89a0 RS |
5542 | |
5543 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5544 | if (event->code == lispy_accent_codes[i]) | |
5545 | return modify_event_symbol (i, | |
5546 | event->modifiers, | |
80e4aa30 | 5547 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5548 | lispy_accent_keys, &accent_key_syms, |
5549 | (sizeof (lispy_accent_keys) | |
5550 | / sizeof (lispy_accent_keys[0]))); | |
5551 | ||
ed3230db | 5552 | #if 0 |
37cd9f30 KH |
5553 | #ifdef XK_kana_A |
5554 | if (event->code >= 0x400 && event->code < 0x500) | |
5555 | return modify_event_symbol (event->code - 0x400, | |
5556 | event->modifiers & ~shift_modifier, | |
5557 | Qfunction_key, Qnil, | |
5558 | lispy_kana_keys, &func_key_syms, | |
5559 | (sizeof (lispy_kana_keys) | |
5560 | / sizeof (lispy_kana_keys[0]))); | |
5561 | #endif /* XK_kana_A */ | |
ed3230db | 5562 | #endif /* 0 */ |
37cd9f30 | 5563 | |
111c4138 | 5564 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5565 | if (event->code < FUNCTION_KEY_OFFSET |
5566 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5567 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5568 | event->modifiers, | |
5569 | Qfunction_key, Qnil, | |
5570 | iso_lispy_function_keys, &func_key_syms, | |
5571 | (sizeof (iso_lispy_function_keys) | |
5572 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5573 | #endif |
656280a6 | 5574 | |
4c8bc894 SM |
5575 | /* Handle system-specific or unknown keysyms. */ |
5576 | if (event->code & (1 << 28) | |
5577 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5578 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5579 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5580 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5581 | { |
4c8bc894 SM |
5582 | /* We need to use an alist rather than a vector as the cache |
5583 | since we can't make a vector long enuf. */ | |
5584 | if (NILP (current_kboard->system_key_syms)) | |
5585 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5586 | return modify_event_symbol (event->code, | |
5587 | event->modifiers, | |
5588 | Qfunction_key, | |
5589 | current_kboard->Vsystem_key_alist, | |
5590 | 0, ¤t_kboard->system_key_syms, | |
5591 | (unsigned) -1); | |
656280a6 | 5592 | } |
656280a6 GM |
5593 | |
5594 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5595 | event->modifiers, | |
5596 | Qfunction_key, Qnil, | |
5597 | lispy_function_keys, &func_key_syms, | |
5598 | (sizeof (lispy_function_keys) | |
5599 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5600 | |
ba991a0e JR |
5601 | #ifdef WINDOWSNT |
5602 | case MULTIMEDIA_KEY_EVENT: | |
5603 | if (event->code < (sizeof (lispy_multimedia_keys) | |
5604 | / sizeof (lispy_multimedia_keys[0])) | |
5605 | && event->code > 0 && lispy_multimedia_keys[event->code]) | |
5606 | { | |
5607 | return modify_event_symbol (event->code, event->modifiers, | |
5608 | Qfunction_key, Qnil, | |
5609 | lispy_multimedia_keys, &func_key_syms, | |
5610 | (sizeof (lispy_multimedia_keys) | |
5611 | / sizeof (lispy_multimedia_keys[0]))); | |
5612 | } | |
5613 | return Qnil; | |
5614 | #endif | |
5615 | ||
514354e9 | 5616 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5617 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5618 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5619 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5620 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5621 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5622 | #endif |
284f4730 | 5623 | { |
e9bf89a0 | 5624 | int button = event->code; |
559f9d04 | 5625 | int is_double; |
7b4aedb9 | 5626 | Lisp_Object position; |
dbc4e1c1 JB |
5627 | Lisp_Object *start_pos_ptr; |
5628 | Lisp_Object start_pos; | |
284f4730 | 5629 | |
8c907a56 GM |
5630 | position = Qnil; |
5631 | ||
7b4aedb9 | 5632 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5633 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5634 | { |
c5cf2109 | 5635 | struct frame *f = XFRAME (event->frame_or_window); |
edfda783 | 5636 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
9e20143a | 5637 | int row, column; |
6b61353c | 5638 | #endif |
9e20143a | 5639 | |
5da3133a RS |
5640 | /* Ignore mouse events that were made on frame that |
5641 | have been deleted. */ | |
5642 | if (! FRAME_LIVE_P (f)) | |
5643 | return Qnil; | |
5644 | ||
edfda783 | 5645 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
7ee32cda GM |
5646 | /* EVENT->x and EVENT->y are frame-relative pixel |
5647 | coordinates at this place. Under old redisplay, COLUMN | |
5648 | and ROW are set to frame relative glyph coordinates | |
5649 | which are then used to determine whether this click is | |
5650 | in a menu (non-toolkit version). */ | |
5651 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5652 | &column, &row, NULL, 1); | |
7b4aedb9 | 5653 | |
eef045bf RS |
5654 | /* In the non-toolkit version, clicks on the menu bar |
5655 | are ordinary button events in the event buffer. | |
5656 | Distinguish them, and invoke the menu. | |
5657 | ||
5658 | (In the toolkit version, the toolkit handles the menu bar | |
5659 | and Emacs doesn't know about it until after the user | |
5660 | makes a selection.) */ | |
2ee250ec RS |
5661 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5662 | && (event->modifiers & down_modifier)) | |
bb936752 | 5663 | { |
b7c49376 | 5664 | Lisp_Object items, item; |
0a0e8fe6 RS |
5665 | int hpos; |
5666 | int i; | |
5667 | ||
2ee250ec | 5668 | #if 0 |
0a0e8fe6 RS |
5669 | /* Activate the menu bar on the down event. If the |
5670 | up event comes in before the menu code can deal with it, | |
5671 | just ignore it. */ | |
5672 | if (! (event->modifiers & down_modifier)) | |
5673 | return Qnil; | |
2ee250ec | 5674 | #endif |
0aafc975 | 5675 | |
7ee32cda | 5676 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5677 | item = Qnil; |
5ec75a55 | 5678 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5679 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5680 | { |
5681 | Lisp_Object pos, string; | |
129004d3 GM |
5682 | string = AREF (items, i + 1); |
5683 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5684 | if (NILP (string)) |
5685 | break; | |
9e20143a | 5686 | if (column >= XINT (pos) |
d5db4077 | 5687 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5688 | { |
129004d3 | 5689 | item = AREF (items, i); |
b7c49376 RS |
5690 | break; |
5691 | } | |
5ec75a55 | 5692 | } |
9e20143a | 5693 | |
7ee32cda GM |
5694 | /* ELisp manual 2.4b says (x y) are window relative but |
5695 | code says they are frame-relative. */ | |
5ec75a55 RS |
5696 | position |
5697 | = Fcons (event->frame_or_window, | |
5698 | Fcons (Qmenu_bar, | |
5699 | Fcons (Fcons (event->x, event->y), | |
5700 | Fcons (make_number (event->timestamp), | |
5701 | Qnil)))); | |
5702 | ||
b7c49376 | 5703 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5704 | } |
edfda783 | 5705 | #endif /* not USE_X_TOOLKIT && not USE_GTK && not HAVE_NS */ |
0aafc975 | 5706 | |
6b61353c KH |
5707 | position = make_lispy_position (f, &event->x, &event->y, |
5708 | event->timestamp); | |
284f4730 | 5709 | } |
7ee32cda | 5710 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5711 | else |
88cb0656 | 5712 | { |
7ee32cda | 5713 | /* It's a scrollbar click. */ |
6b61353c | 5714 | Lisp_Object window; |
9e20143a RS |
5715 | Lisp_Object portion_whole; |
5716 | Lisp_Object part; | |
5717 | ||
5718 | window = event->frame_or_window; | |
5719 | portion_whole = Fcons (event->x, event->y); | |
5720 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5721 | |
db08707d RS |
5722 | position |
5723 | = Fcons (window, | |
5724 | Fcons (Qvertical_scroll_bar, | |
5725 | Fcons (portion_whole, | |
5726 | Fcons (make_number (event->timestamp), | |
5727 | Fcons (part, Qnil))))); | |
88cb0656 | 5728 | } |
7ee32cda | 5729 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5730 | |
129004d3 | 5731 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5732 | { |
5733 | button_down_location = larger_vector (button_down_location, | |
5734 | button + 1, Qnil); | |
5735 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5736 | } | |
c60ee5e7 | 5737 | |
129004d3 | 5738 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5739 | start_pos = *start_pos_ptr; |
5740 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5741 | |
c5cf2109 GM |
5742 | { |
5743 | /* On window-system frames, use the value of | |
5744 | double-click-fuzz as is. On other frames, interpret it | |
5745 | as a multiple of 1/8 characters. */ | |
5746 | struct frame *f; | |
5747 | int fuzz; | |
5748 | ||
5749 | if (WINDOWP (event->frame_or_window)) | |
5750 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5751 | else if (FRAMEP (event->frame_or_window)) | |
5752 | f = XFRAME (event->frame_or_window); | |
5753 | else | |
5754 | abort (); | |
5755 | ||
5756 | if (FRAME_WINDOW_P (f)) | |
5757 | fuzz = double_click_fuzz; | |
5758 | else | |
5759 | fuzz = double_click_fuzz / 8; | |
5760 | ||
5761 | is_double = (button == last_mouse_button | |
1ea40aa2 EZ |
5762 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5763 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
c5cf2109 GM |
5764 | && button_down_time != 0 |
5765 | && (EQ (Vdouble_click_time, Qt) | |
5766 | || (INTEGERP (Vdouble_click_time) | |
5767 | && ((int)(event->timestamp - button_down_time) | |
5768 | < XINT (Vdouble_click_time))))); | |
5769 | } | |
c60ee5e7 | 5770 | |
559f9d04 RS |
5771 | last_mouse_button = button; |
5772 | last_mouse_x = XINT (event->x); | |
5773 | last_mouse_y = XINT (event->y); | |
5774 | ||
7b4aedb9 JB |
5775 | /* If this is a button press, squirrel away the location, so |
5776 | we can decide later whether it was a click or a drag. */ | |
5777 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5778 | { |
5779 | if (is_double) | |
5780 | { | |
5781 | double_click_count++; | |
5782 | event->modifiers |= ((double_click_count > 2) | |
5783 | ? triple_modifier | |
5784 | : double_modifier); | |
5785 | } | |
5786 | else | |
5787 | double_click_count = 1; | |
5788 | button_down_time = event->timestamp; | |
5789 | *start_pos_ptr = Fcopy_alist (position); | |
3b0cdcef | 5790 | ignore_mouse_drag_p = 0; |
559f9d04 | 5791 | } |
7b4aedb9 | 5792 | |
88cb0656 | 5793 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5794 | see if this was a click or a drag. */ |
88cb0656 JB |
5795 | else if (event->modifiers & up_modifier) |
5796 | { | |
129004d3 GM |
5797 | /* If we did not see a down before this up, ignore the up. |
5798 | Probably this happened because the down event chose a | |
5799 | menu item. It would be an annoyance to treat the | |
5800 | release of the button that chose the menu item as a | |
5801 | separate event. */ | |
48e416d4 | 5802 | |
8c18cbfb | 5803 | if (!CONSP (start_pos)) |
48e416d4 RS |
5804 | return Qnil; |
5805 | ||
88cb0656 | 5806 | event->modifiers &= ~up_modifier; |
48e416d4 | 5807 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5808 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5809 | event->modifiers |= click_modifier; |
5810 | else | |
48e416d4 | 5811 | #endif |
dbc4e1c1 | 5812 | { |
9b8eb840 | 5813 | Lisp_Object down; |
d31053f9 | 5814 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5815 | |
d31053f9 RS |
5816 | /* The third element of every position |
5817 | should be the (x,y) pair. */ | |
5818 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5819 | if (CONSP (down) |
5820 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5821 | { |
4156359e SM |
5822 | xdiff = XINT (event->x) - XINT (XCAR (down)); |
5823 | ydiff = XINT (event->y) - XINT (XCDR (down)); | |
d31053f9 RS |
5824 | } |
5825 | ||
3b0cdcef KS |
5826 | if (ignore_mouse_drag_p) |
5827 | { | |
5828 | event->modifiers |= click_modifier; | |
5829 | ignore_mouse_drag_p = 0; | |
5830 | } | |
5831 | else if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5832 | && ydiff < double_click_fuzz && ydiff > - double_click_fuzz | |
4156359e SM |
5833 | /* Maybe the mouse has moved a lot, caused scrolling, and |
5834 | eventually ended up at the same screen position (but | |
5835 | not buffer position) in which case it is a drag, not | |
5836 | a click. */ | |
5837 | /* FIXME: OTOH if the buffer position has changed | |
5838 | because of a timer or process filter rather than | |
5839 | because of mouse movement, it should be considered as | |
5840 | a click. But mouse-drag-region completely ignores | |
5841 | this case and it hasn't caused any real problem, so | |
5842 | it's probably OK to ignore it as well. */ | |
5843 | && EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position)))) | |
d31053f9 | 5844 | /* Mouse hasn't moved (much). */ |
129004d3 | 5845 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5846 | else |
5847 | { | |
d31053f9 RS |
5848 | button_down_time = 0; |
5849 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5850 | } |
c60ee5e7 | 5851 | |
bc536d84 RS |
5852 | /* Don't check is_double; treat this as multiple |
5853 | if the down-event was multiple. */ | |
5854 | if (double_click_count > 1) | |
5855 | event->modifiers |= ((double_click_count > 2) | |
5856 | ? triple_modifier | |
5857 | : double_modifier); | |
dbc4e1c1 | 5858 | } |
88cb0656 JB |
5859 | } |
5860 | else | |
5861 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5862 | the up_modifier set. */ |
88cb0656 JB |
5863 | abort (); |
5864 | ||
88cb0656 | 5865 | { |
7b4aedb9 | 5866 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5867 | Lisp_Object head; |
5868 | ||
5869 | head = modify_event_symbol (button, | |
5870 | event->modifiers, | |
8e1e4240 GM |
5871 | Qmouse_click, Vlispy_mouse_stem, |
5872 | NULL, | |
5873 | &mouse_syms, | |
5874 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5875 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5876 | return Fcons (head, |
5877 | Fcons (start_pos, | |
5878 | Fcons (position, | |
5879 | Qnil))); | |
fbcd35bd JB |
5880 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5881 | return Fcons (head, | |
5882 | Fcons (position, | |
5883 | Fcons (make_number (double_click_count), | |
5884 | Qnil))); | |
88cb0656 JB |
5885 | else |
5886 | return Fcons (head, | |
7b4aedb9 | 5887 | Fcons (position, |
88cb0656 JB |
5888 | Qnil)); |
5889 | } | |
284f4730 | 5890 | } |
db08707d | 5891 | |
8006e4bb | 5892 | case WHEEL_EVENT: |
13899bc1 | 5893 | case HORIZ_WHEEL_EVENT: |
8006e4bb JR |
5894 | { |
5895 | Lisp_Object position; | |
8006e4bb | 5896 | Lisp_Object head; |
6b61353c | 5897 | |
87d386ff | 5898 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5899 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5900 | |
5901 | /* Ignore wheel events that were made on frame that have been | |
5902 | deleted. */ | |
5903 | if (! FRAME_LIVE_P (f)) | |
5904 | return Qnil; | |
5905 | ||
6b61353c KH |
5906 | position = make_lispy_position (f, &event->x, &event->y, |
5907 | event->timestamp); | |
87d386ff | 5908 | |
db9cd97a | 5909 | /* Set double or triple modifiers to indicate the wheel speed. */ |
87d386ff JR |
5910 | { |
5911 | /* On window-system frames, use the value of | |
5912 | double-click-fuzz as is. On other frames, interpret it | |
5913 | as a multiple of 1/8 characters. */ | |
5914 | struct frame *f; | |
5915 | int fuzz; | |
5916 | int is_double; | |
5917 | ||
5918 | if (WINDOWP (event->frame_or_window)) | |
5919 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5920 | else if (FRAMEP (event->frame_or_window)) | |
5921 | f = XFRAME (event->frame_or_window); | |
5922 | else | |
5923 | abort (); | |
5924 | ||
5925 | if (FRAME_WINDOW_P (f)) | |
5926 | fuzz = double_click_fuzz; | |
5927 | else | |
5928 | fuzz = double_click_fuzz / 8; | |
5929 | ||
5930 | is_double = (last_mouse_button < 0 | |
1ea40aa2 EZ |
5931 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5932 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
87d386ff JR |
5933 | && button_down_time != 0 |
5934 | && (EQ (Vdouble_click_time, Qt) | |
5935 | || (INTEGERP (Vdouble_click_time) | |
5936 | && ((int)(event->timestamp - button_down_time) | |
5937 | < XINT (Vdouble_click_time))))); | |
5938 | if (is_double) | |
5939 | { | |
5940 | double_click_count++; | |
5941 | event->modifiers |= ((double_click_count > 2) | |
5942 | ? triple_modifier | |
5943 | : double_modifier); | |
5944 | } | |
5945 | else | |
5946 | { | |
5947 | double_click_count = 1; | |
5948 | event->modifiers |= click_modifier; | |
5949 | } | |
5950 | ||
5951 | button_down_time = event->timestamp; | |
5952 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5953 | last_mouse_button = -1; | |
5954 | last_mouse_x = XINT (event->x); | |
5955 | last_mouse_y = XINT (event->y); | |
5956 | } | |
5957 | ||
5958 | { | |
5959 | int symbol_num; | |
5960 | ||
5961 | if (event->modifiers & up_modifier) | |
5962 | { | |
db9cd97a | 5963 | /* Emit a wheel-up event. */ |
87d386ff JR |
5964 | event->modifiers &= ~up_modifier; |
5965 | symbol_num = 0; | |
5966 | } | |
5967 | else if (event->modifiers & down_modifier) | |
5968 | { | |
5969 | /* Emit a wheel-down event. */ | |
5970 | event->modifiers &= ~down_modifier; | |
5971 | symbol_num = 1; | |
5972 | } | |
5973 | else | |
5974 | /* Every wheel event should either have the down_modifier or | |
5975 | the up_modifier set. */ | |
5976 | abort (); | |
5977 | ||
13899bc1 JR |
5978 | if (event->kind == HORIZ_WHEEL_EVENT) |
5979 | symbol_num += 2; | |
5980 | ||
db9cd97a | 5981 | /* Get the symbol we should use for the wheel event. */ |
87d386ff JR |
5982 | head = modify_event_symbol (symbol_num, |
5983 | event->modifiers, | |
5984 | Qmouse_click, | |
5985 | Qnil, | |
5986 | lispy_wheel_names, | |
5987 | &wheel_syms, | |
5988 | ASIZE (wheel_syms)); | |
5989 | } | |
5990 | ||
5991 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5992 | return Fcons (head, | |
5993 | Fcons (position, | |
5994 | Fcons (make_number (double_click_count), | |
5995 | Qnil))); | |
5996 | else | |
5997 | return Fcons (head, | |
5998 | Fcons (position, | |
5999 | Qnil)); | |
8006e4bb JR |
6000 | } |
6001 | ||
6002 | ||
05be3964 | 6003 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
6004 | |
6005 | /* We don't have down and up events if using toolkit scroll bars, | |
6006 | so make this always a click event. Store in the `part' of | |
6007 | the Lisp event a symbol which maps to the following actions: | |
6008 | ||
6009 | `above_handle' page up | |
6010 | `below_handle' page down | |
6011 | `up' line up | |
6012 | `down' line down | |
6013 | `top' top of buffer | |
6014 | `bottom' bottom of buffer | |
6015 | `handle' thumb has been dragged. | |
6016 | `end-scroll' end of interaction with scroll bar | |
6017 | ||
6018 | The incoming input_event contains in its `part' member an | |
6019 | index of type `enum scroll_bar_part' which we can use as an | |
6020 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 6021 | |
3b8f9651 | 6022 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
6023 | { |
6024 | Lisp_Object position, head, window, portion_whole, part; | |
6025 | ||
6026 | window = event->frame_or_window; | |
6027 | portion_whole = Fcons (event->x, event->y); | |
6028 | part = *scroll_bar_parts[(int) event->part]; | |
6029 | ||
6030 | position | |
6031 | = Fcons (window, | |
6032 | Fcons (Qvertical_scroll_bar, | |
6033 | Fcons (portion_whole, | |
6034 | Fcons (make_number (event->timestamp), | |
6035 | Fcons (part, Qnil))))); | |
6036 | ||
6037 | /* Always treat scroll bar events as clicks. */ | |
6038 | event->modifiers |= click_modifier; | |
05be3964 | 6039 | event->modifiers &= ~up_modifier; |
7ee32cda | 6040 | |
257f40f2 JD |
6041 | if (event->code >= ASIZE (mouse_syms)) |
6042 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
6043 | ||
7ee32cda GM |
6044 | /* Get the symbol we should use for the mouse click. */ |
6045 | head = modify_event_symbol (event->code, | |
6046 | event->modifiers, | |
14e40288 | 6047 | Qmouse_click, |
8e1e4240 GM |
6048 | Vlispy_mouse_stem, |
6049 | NULL, &mouse_syms, | |
6050 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
6051 | return Fcons (head, Fcons (position, Qnil)); |
6052 | } | |
c60ee5e7 | 6053 | |
7ee32cda GM |
6054 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
6055 | ||
3b8f9651 | 6056 | case DRAG_N_DROP_EVENT: |
a24dc617 | 6057 | { |
a24dc617 | 6058 | FRAME_PTR f; |
6b61353c | 6059 | Lisp_Object head, position; |
a24dc617 | 6060 | Lisp_Object files; |
a24dc617 | 6061 | |
82de1de9 YM |
6062 | f = XFRAME (event->frame_or_window); |
6063 | files = event->arg; | |
a24dc617 RS |
6064 | |
6065 | /* Ignore mouse events that were made on frames that | |
6066 | have been deleted. */ | |
6067 | if (! FRAME_LIVE_P (f)) | |
6068 | return Qnil; | |
afabdbe5 | 6069 | |
6b61353c KH |
6070 | position = make_lispy_position (f, &event->x, &event->y, |
6071 | event->timestamp); | |
6072 | ||
6073 | head = modify_event_symbol (0, event->modifiers, | |
6074 | Qdrag_n_drop, Qnil, | |
6075 | lispy_drag_n_drop_names, | |
6076 | &drag_n_drop_syms, 1); | |
6077 | return Fcons (head, | |
6078 | Fcons (position, | |
6079 | Fcons (files, | |
6080 | Qnil))); | |
a24dc617 | 6081 | } |
514354e9 | 6082 | #endif /* HAVE_MOUSE */ |
284f4730 | 6083 | |
9e2a2647 | 6084 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 6085 | || defined(HAVE_NS) || defined (USE_GTK) |
da8f7368 GM |
6086 | case MENU_BAR_EVENT: |
6087 | if (EQ (event->arg, event->frame_or_window)) | |
6088 | /* This is the prefix key. We translate this to | |
6089 | `(menu_bar)' because the code in keyboard.c for menu | |
6090 | events, which we use, relies on this. */ | |
6091 | return Fcons (Qmenu_bar, Qnil); | |
6092 | return event->arg; | |
2470a66f KH |
6093 | #endif |
6094 | ||
a4e19f6e SM |
6095 | case SELECT_WINDOW_EVENT: |
6096 | /* Make an event (select-window (WINDOW)). */ | |
6097 | return Fcons (Qselect_window, | |
6098 | Fcons (Fcons (event->frame_or_window, Qnil), | |
6099 | Qnil)); | |
6100 | ||
9ea173e8 | 6101 | case TOOL_BAR_EVENT: |
da8f7368 GM |
6102 | if (EQ (event->arg, event->frame_or_window)) |
6103 | /* This is the prefix key. We translate this to | |
27fd22dc | 6104 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
6105 | events, which we use, relies on this. */ |
6106 | return Fcons (Qtool_bar, Qnil); | |
6107 | else if (SYMBOLP (event->arg)) | |
6108 | return apply_modifiers (event->modifiers, event->arg); | |
6109 | return event->arg; | |
6110 | ||
6111 | case USER_SIGNAL_EVENT: | |
5bf68f6e | 6112 | /* A user signal. */ |
b809d9e7 KS |
6113 | { |
6114 | char *name = find_user_signal_name (event->code); | |
6115 | if (!name) | |
6116 | abort (); | |
6117 | return intern (name); | |
6118 | } | |
c60ee5e7 | 6119 | |
3b8f9651 | 6120 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 6121 | return Qsave_session; |
c60ee5e7 | 6122 | |
033b73e2 MA |
6123 | #ifdef HAVE_DBUS |
6124 | case DBUS_EVENT: | |
6125 | { | |
6126 | return Fcons (Qdbus_event, event->arg); | |
6127 | } | |
6128 | #endif /* HAVE_DBUS */ | |
6129 | ||
7e5a23bd | 6130 | #ifdef HAVE_GPM |
ae372f41 NR |
6131 | case GPM_CLICK_EVENT: |
6132 | { | |
6133 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
6134 | Lisp_Object head, position; | |
6135 | Lisp_Object *start_pos_ptr; | |
6136 | Lisp_Object start_pos; | |
6137 | int button = event->code; | |
6138 | ||
6139 | if (button >= ASIZE (button_down_location)) | |
6140 | { | |
6141 | button_down_location = larger_vector (button_down_location, | |
6142 | button + 1, Qnil); | |
6143 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
6144 | } | |
6145 | ||
6146 | start_pos_ptr = &AREF (button_down_location, button); | |
6147 | start_pos = *start_pos_ptr; | |
6148 | ||
6149 | position = make_lispy_position (f, &event->x, &event->y, | |
6150 | event->timestamp); | |
6151 | ||
6152 | if (event->modifiers & down_modifier) | |
6153 | *start_pos_ptr = Fcopy_alist (position); | |
6154 | else if (event->modifiers & (up_modifier | drag_modifier)) | |
6155 | { | |
6156 | if (!CONSP (start_pos)) | |
6157 | return Qnil; | |
6158 | event->modifiers &= ~up_modifier; | |
6159 | } | |
6160 | ||
6161 | head = modify_event_symbol (button, | |
6162 | event->modifiers, | |
6163 | Qmouse_click, Vlispy_mouse_stem, | |
6164 | NULL, | |
6165 | &mouse_syms, | |
6166 | XVECTOR (mouse_syms)->size); | |
6167 | ||
6168 | if (event->modifiers & drag_modifier) | |
6169 | return Fcons (head, | |
6170 | Fcons (start_pos, | |
6171 | Fcons (position, | |
6172 | Qnil))); | |
6173 | else if (event->modifiers & double_modifier) | |
6174 | return Fcons (head, | |
6175 | Fcons (position, | |
6176 | Fcons (make_number (2), | |
6177 | Qnil))); | |
6178 | else if (event->modifiers & triple_modifier) | |
6179 | return Fcons (head, | |
6180 | Fcons (position, | |
6181 | Fcons (make_number (3), | |
6182 | Qnil))); | |
6183 | else | |
6184 | return Fcons (head, | |
6185 | Fcons (position, | |
6186 | Qnil)); | |
6187 | } | |
7e5a23bd | 6188 | #endif /* HAVE_GPM */ |
ae372f41 | 6189 | |
284f4730 JB |
6190 | /* The 'kind' field of the event is something we don't recognize. */ |
6191 | default: | |
48e416d4 | 6192 | abort (); |
284f4730 JB |
6193 | } |
6194 | } | |
6195 | ||
bdb1e01d | 6196 | #if defined(HAVE_MOUSE) || defined(HAVE_GPM) |
6cbff1cb | 6197 | |
284f4730 | 6198 | static Lisp_Object |
7b4aedb9 | 6199 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 6200 | FRAME_PTR frame; |
7b4aedb9 | 6201 | Lisp_Object bar_window; |
3c370943 | 6202 | enum scroll_bar_part part; |
284f4730 | 6203 | Lisp_Object x, y; |
e5d77022 | 6204 | unsigned long time; |
284f4730 | 6205 | { |
3c370943 | 6206 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 6207 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 6208 | { |
9b8eb840 | 6209 | Lisp_Object part_sym; |
4bb994d1 | 6210 | |
9b8eb840 | 6211 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 6212 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 6213 | (Fcons (Fcons (bar_window, |
3c370943 | 6214 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
6215 | Fcons (Fcons (x, y), |
6216 | Fcons (make_number (time), | |
cb5df6ae | 6217 | Fcons (part_sym, |
4bb994d1 JB |
6218 | Qnil))))), |
6219 | Qnil))); | |
6220 | } | |
6221 | ||
6222 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
6223 | else |
6224 | { | |
6b61353c | 6225 | Lisp_Object position; |
9e20143a | 6226 | |
6b61353c | 6227 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 6228 | |
4bb994d1 | 6229 | return Fcons (Qmouse_movement, |
6b61353c | 6230 | Fcons (position, |
4bb994d1 JB |
6231 | Qnil)); |
6232 | } | |
284f4730 JB |
6233 | } |
6234 | ||
bdb1e01d | 6235 | #endif /* HAVE_MOUSE || HAVE GPM */ |
6cbff1cb | 6236 | |
cd21b839 JB |
6237 | /* Construct a switch frame event. */ |
6238 | static Lisp_Object | |
6239 | make_lispy_switch_frame (frame) | |
6240 | Lisp_Object frame; | |
6241 | { | |
6242 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
6243 | } | |
0a7f1fc0 JB |
6244 | \f |
6245 | /* Manipulating modifiers. */ | |
284f4730 | 6246 | |
0a7f1fc0 | 6247 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 6248 | |
0a7f1fc0 JB |
6249 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
6250 | SYMBOL's name of the end of the modifiers; the string from this | |
6251 | position is the unmodified symbol name. | |
284f4730 | 6252 | |
0a7f1fc0 | 6253 | This doesn't use any caches. */ |
6da3dd3a | 6254 | |
0a7f1fc0 JB |
6255 | static int |
6256 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 6257 | Lisp_Object symbol; |
0a7f1fc0 | 6258 | int *modifier_end; |
284f4730 | 6259 | { |
1b049b51 | 6260 | Lisp_Object name; |
284f4730 JB |
6261 | int i; |
6262 | int modifiers; | |
284f4730 | 6263 | |
b7826503 | 6264 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 6265 | |
284f4730 | 6266 | modifiers = 0; |
1b049b51 | 6267 | name = SYMBOL_NAME (symbol); |
284f4730 | 6268 | |
1b049b51 | 6269 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
6270 | { |
6271 | int this_mod_end = 0; | |
6272 | int this_mod = 0; | |
284f4730 | 6273 | |
6da3dd3a RS |
6274 | /* See if the name continues with a modifier word. |
6275 | Check that the word appears, but don't check what follows it. | |
6276 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 6277 | |
1b049b51 | 6278 | switch (SREF (name, i)) |
6da3dd3a RS |
6279 | { |
6280 | #define SINGLE_LETTER_MOD(BIT) \ | |
6281 | (this_mod_end = i + 1, this_mod = BIT) | |
6282 | ||
6da3dd3a RS |
6283 | case 'A': |
6284 | SINGLE_LETTER_MOD (alt_modifier); | |
6285 | break; | |
284f4730 | 6286 | |
6da3dd3a RS |
6287 | case 'C': |
6288 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6289 | break; | |
284f4730 | 6290 | |
6da3dd3a RS |
6291 | case 'H': |
6292 | SINGLE_LETTER_MOD (hyper_modifier); | |
6293 | break; | |
6294 | ||
6da3dd3a RS |
6295 | case 'M': |
6296 | SINGLE_LETTER_MOD (meta_modifier); | |
6297 | break; | |
6298 | ||
6da3dd3a RS |
6299 | case 'S': |
6300 | SINGLE_LETTER_MOD (shift_modifier); | |
6301 | break; | |
6302 | ||
6303 | case 's': | |
6da3dd3a RS |
6304 | SINGLE_LETTER_MOD (super_modifier); |
6305 | break; | |
6306 | ||
0a7f1fc0 | 6307 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
6308 | |
6309 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
6310 | if (i + LEN + 1 <= SBYTES (name) \ | |
6311 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
6312 | { \ | |
6313 | this_mod_end = i + LEN; \ | |
6314 | this_mod = BIT; \ | |
6315 | } | |
6316 | ||
6317 | case 'd': | |
6318 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6319 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6320 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6321 | break; | |
6322 | ||
6323 | case 't': | |
6324 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6325 | break; | |
6326 | #undef MULTI_LETTER_MOD | |
6327 | ||
6da3dd3a RS |
6328 | } |
6329 | ||
6330 | /* If we found no modifier, stop looking for them. */ | |
6331 | if (this_mod_end == 0) | |
6332 | break; | |
6333 | ||
6334 | /* Check there is a dash after the modifier, so that it | |
6335 | really is a modifier. */ | |
1b049b51 KR |
6336 | if (this_mod_end >= SBYTES (name) |
6337 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
6338 | break; |
6339 | ||
6340 | /* This modifier is real; look for another. */ | |
6341 | modifiers |= this_mod; | |
6342 | i = this_mod_end + 1; | |
6343 | } | |
284f4730 | 6344 | |
0a7f1fc0 | 6345 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6346 | if (! (modifiers & (down_modifier | drag_modifier |
6347 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6348 | && i + 7 == SBYTES (name) |
6349 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6350 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6351 | modifiers |= click_modifier; |
6352 | ||
a6d46bc1 JR |
6353 | if (! (modifiers & (double_modifier | triple_modifier)) |
6354 | && i + 6 < SBYTES (name) | |
6355 | && strncmp (SDATA (name) + i, "wheel-", 6) == 0) | |
6356 | modifiers |= click_modifier; | |
6357 | ||
0a7f1fc0 JB |
6358 | if (modifier_end) |
6359 | *modifier_end = i; | |
6360 | ||
6361 | return modifiers; | |
6362 | } | |
6363 | ||
0a7f1fc0 JB |
6364 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6365 | prepended to the string BASE[0..BASE_LEN-1]. | |
6366 | This doesn't use any caches. */ | |
6367 | static Lisp_Object | |
301738ed | 6368 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6369 | int modifiers; |
6370 | char *base; | |
301738ed | 6371 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6372 | { |
6373 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6374 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6375 | reference to it. */ | |
301738ed RS |
6376 | char *new_mods |
6377 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6378 | int mod_len; |
284f4730 | 6379 | |
284f4730 | 6380 | { |
0a7f1fc0 JB |
6381 | char *p = new_mods; |
6382 | ||
6383 | /* Only the event queue may use the `up' modifier; it should always | |
6384 | be turned into a click or drag event before presented to lisp code. */ | |
6385 | if (modifiers & up_modifier) | |
6386 | abort (); | |
6387 | ||
6388 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6389 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6390 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6391 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6392 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6393 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6394 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6395 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6396 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6397 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6398 | /* The click modifier is denoted by the absence of other modifiers. */ |
6399 | ||
6400 | *p = '\0'; | |
6401 | ||
6402 | mod_len = p - new_mods; | |
6403 | } | |
284f4730 | 6404 | |
0a7f1fc0 | 6405 | { |
9b8eb840 | 6406 | Lisp_Object new_name; |
df0f2ba1 | 6407 | |
301738ed RS |
6408 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6409 | mod_len + base_len_byte); | |
d5db4077 KR |
6410 | bcopy (new_mods, SDATA (new_name), mod_len); |
6411 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6412 | |
6413 | return Fintern (new_name, Qnil); | |
6414 | } | |
6415 | } | |
6416 | ||
6417 | ||
0a7f1fc0 JB |
6418 | static char *modifier_names[] = |
6419 | { | |
fbcd35bd | 6420 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6421 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6422 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6423 | }; |
80645119 | 6424 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6425 | |
6426 | static Lisp_Object modifier_symbols; | |
6427 | ||
6428 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6429 | static Lisp_Object | |
6430 | lispy_modifier_list (modifiers) | |
6431 | int modifiers; | |
6432 | { | |
6433 | Lisp_Object modifier_list; | |
6434 | int i; | |
6435 | ||
6436 | modifier_list = Qnil; | |
80645119 | 6437 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6438 | if (modifiers & (1<<i)) |
80645119 JB |
6439 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6440 | modifier_list); | |
0a7f1fc0 JB |
6441 | |
6442 | return modifier_list; | |
6443 | } | |
6444 | ||
6445 | ||
6446 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6447 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6448 | MASK is the set of modifiers present in SYMBOL's name. | |
6449 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6450 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6451 | Qevent_symbol_elements property. */ | |
3d31316f | 6452 | |
21ec2c43 SM |
6453 | #define KEY_TO_CHAR(k) (XINT (k) & ((1 << CHARACTERBITS) - 1)) |
6454 | ||
1161d367 | 6455 | Lisp_Object |
0a7f1fc0 JB |
6456 | parse_modifiers (symbol) |
6457 | Lisp_Object symbol; | |
6458 | { | |
9b8eb840 | 6459 | Lisp_Object elements; |
0a7f1fc0 | 6460 | |
21ec2c43 SM |
6461 | if (INTEGERP (symbol)) |
6462 | return (Fcons (make_number (KEY_TO_CHAR (symbol)), | |
6463 | Fcons (make_number (XINT (symbol) & CHAR_MODIFIER_MASK), | |
6464 | Qnil))); | |
6465 | else if (!SYMBOLP (symbol)) | |
6466 | return Qnil; | |
6467 | ||
9b8eb840 | 6468 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6469 | if (CONSP (elements)) |
6470 | return elements; | |
6471 | else | |
6472 | { | |
6473 | int end; | |
ec0faad2 | 6474 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6475 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6476 | Lisp_Object mask; |
6477 | ||
d5db4077 KR |
6478 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6479 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6480 | Qnil); |
6481 | ||
6b61353c | 6482 | if (modifiers & ~INTMASK) |
734fef94 | 6483 | abort (); |
bb9e9bed | 6484 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6485 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6486 | ||
6487 | /* Cache the parsing results on SYMBOL. */ | |
6488 | Fput (symbol, Qevent_symbol_element_mask, | |
6489 | elements); | |
6490 | Fput (symbol, Qevent_symbol_elements, | |
6491 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6492 | ||
6493 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6494 | it would be nice to put that in unmodified's cache. | |
6495 | But we can't, since we're not sure that parse_modifiers is | |
6496 | canonical. */ | |
6497 | ||
6498 | return elements; | |
6499 | } | |
6500 | } | |
6501 | ||
58da34c7 SM |
6502 | DEFUN ("internal-event-symbol-parse-modifiers", Fevent_symbol_parse_modifiers, |
6503 | Sevent_symbol_parse_modifiers, 1, 1, 0, | |
6504 | doc: /* Parse the event symbol. For internal use. */) | |
9b6112e8 AS |
6505 | (symbol) |
6506 | Lisp_Object symbol; | |
58da34c7 SM |
6507 | { |
6508 | /* Fill the cache if needed. */ | |
6509 | parse_modifiers (symbol); | |
6510 | /* Ignore the result (which is stored on Qevent_symbol_element_mask) | |
6511 | and use the Lispier representation stored on Qevent_symbol_elements | |
6512 | instead. */ | |
6513 | return Fget (symbol, Qevent_symbol_elements); | |
6514 | } | |
6515 | ||
0a7f1fc0 JB |
6516 | /* Apply the modifiers MODIFIERS to the symbol BASE. |
6517 | BASE must be unmodified. | |
6518 | ||
6519 | This is like apply_modifiers_uncached, but uses BASE's | |
6520 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6521 | Qevent_symbol_elements properties, since it has that info anyway. |
6522 | ||
6523 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6524 | the modified symbol. */ | |
0a7f1fc0 JB |
6525 | static Lisp_Object |
6526 | apply_modifiers (modifiers, base) | |
6527 | int modifiers; | |
6528 | Lisp_Object base; | |
6529 | { | |
7b4aedb9 | 6530 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6531 | |
80645119 | 6532 | /* Mask out upper bits. We don't know where this value's been. */ |
6b61353c | 6533 | modifiers &= INTMASK; |
80645119 | 6534 | |
21ec2c43 | 6535 | if (INTEGERP (base)) |
4b7ab1c4 | 6536 | return make_number (XINT (base) | modifiers); |
21ec2c43 | 6537 | |
0a7f1fc0 | 6538 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6539 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6540 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6541 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6542 | |
6543 | if (CONSP (entry)) | |
7539e11f | 6544 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6545 | else |
6546 | { | |
df0f2ba1 | 6547 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6548 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6549 | SDATA (SYMBOL_NAME (base)), |
6550 | SCHARS (SYMBOL_NAME (base)), | |
6551 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6552 | |
6553 | /* Add the new symbol to the base's cache. */ | |
6554 | entry = Fcons (index, new_symbol); | |
6555 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6556 | ||
35fb885d SM |
6557 | /* We have the parsing info now for free, so we could add it to |
6558 | the caches: | |
6559 | XSETFASTINT (index, modifiers); | |
6560 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6561 | Fcons (base, Fcons (index, Qnil))); | |
6562 | Fput (new_symbol, Qevent_symbol_elements, | |
6563 | Fcons (base, lispy_modifier_list (modifiers))); | |
6564 | Sadly, this is only correct if `base' is indeed a base event, | |
6565 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6566 | } |
0a7f1fc0 | 6567 | |
df0f2ba1 | 6568 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6569 | |
6570 | You'd think we could just set this once and for all when we | |
6571 | intern the symbol above, but reorder_modifiers may call us when | |
6572 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6573 | because it has a Qmodifier_cache property it must have its |
6574 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6575 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6576 | { | |
9b8eb840 | 6577 | Lisp_Object kind; |
7b4aedb9 | 6578 | |
9b8eb840 | 6579 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6580 | if (! NILP (kind)) |
6581 | Fput (new_symbol, Qevent_kind, kind); | |
6582 | } | |
6583 | ||
6584 | return new_symbol; | |
0a7f1fc0 JB |
6585 | } |
6586 | ||
6587 | ||
6588 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6589 | return a symbol with the modifiers placed in the canonical order. | |
6590 | Canonical order is alphabetical, except for down and drag, which | |
6591 | always come last. The 'click' modifier is never written out. | |
6592 | ||
6593 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6594 | and M-C-foo end up being equivalent in the keymap. */ | |
6595 | ||
6596 | Lisp_Object | |
6597 | reorder_modifiers (symbol) | |
6598 | Lisp_Object symbol; | |
6599 | { | |
6600 | /* It's hopefully okay to write the code this way, since everything | |
6601 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6602 | Lisp_Object parsed; |
0a7f1fc0 | 6603 | |
9b8eb840 | 6604 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6605 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6606 | XCAR (parsed)); | |
0a7f1fc0 JB |
6607 | } |
6608 | ||
6609 | ||
284f4730 JB |
6610 | /* For handling events, we often want to produce a symbol whose name |
6611 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6612 | to some base, like the name of a function key or mouse button. | |
6613 | modify_event_symbol produces symbols of this sort. | |
6614 | ||
6615 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6616 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6617 | in the table. | |
6618 | ||
8e1e4240 GM |
6619 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6620 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6621 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6622 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6623 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6624 | |
284f4730 JB |
6625 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6626 | persist between calls to modify_event_symbol that it can use to | |
6627 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6628 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6629 | |
6630 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6631 | |
284f4730 JB |
6632 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6633 | whose prefixes should be applied to the symbol name. | |
6634 | ||
6635 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6636 | the returned symbol. |
88cb0656 JB |
6637 | |
6638 | The symbols we create are supposed to have an | |
eb8c3be9 | 6639 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6640 | in the symbol's name. */ |
6641 | ||
284f4730 | 6642 | static Lisp_Object |
8e1e4240 | 6643 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6644 | name_table, symbol_table, table_size) |
284f4730 JB |
6645 | int symbol_num; |
6646 | unsigned modifiers; | |
6647 | Lisp_Object symbol_kind; | |
8e1e4240 | 6648 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6649 | char **name_table; |
6650 | Lisp_Object *symbol_table; | |
2c834fb3 | 6651 | unsigned int table_size; |
284f4730 | 6652 | { |
80e4aa30 RS |
6653 | Lisp_Object value; |
6654 | Lisp_Object symbol_int; | |
6655 | ||
2c834fb3 KH |
6656 | /* Get rid of the "vendor-specific" bit here. */ |
6657 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6658 | |
6659 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6660 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6661 | return Qnil; |
284f4730 | 6662 | |
80e4aa30 RS |
6663 | if (CONSP (*symbol_table)) |
6664 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6665 | ||
0a7f1fc0 | 6666 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6667 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6668 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6669 | we've never used that symbol before. */ | |
80e4aa30 | 6670 | else |
88cb0656 | 6671 | { |
80e4aa30 RS |
6672 | if (! VECTORP (*symbol_table) |
6673 | || XVECTOR (*symbol_table)->size != table_size) | |
6674 | { | |
6675 | Lisp_Object size; | |
0a7f1fc0 | 6676 | |
bb9e9bed | 6677 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6678 | *symbol_table = Fmake_vector (size, Qnil); |
6679 | } | |
284f4730 | 6680 | |
80e4aa30 RS |
6681 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6682 | } | |
284f4730 | 6683 | |
0a7f1fc0 | 6684 | /* Have we already used this symbol before? */ |
80e4aa30 | 6685 | if (NILP (value)) |
284f4730 | 6686 | { |
0a7f1fc0 | 6687 | /* No; let's create it. */ |
8e1e4240 GM |
6688 | if (CONSP (name_alist_or_stem)) |
6689 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6690 | else if (STRINGP (name_alist_or_stem)) | |
6691 | { | |
d5db4077 | 6692 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6693 | char *buf = (char *) alloca (len + 50); |
987a3489 KL |
6694 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6695 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6696 | value = intern (buf); |
6697 | } | |
2ff6714d | 6698 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6699 | value = intern (name_table[symbol_num]); |
b64b4075 | 6700 | |
e98a93eb | 6701 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6702 | if (NILP (value)) |
6703 | { | |
6704 | char *name = x_get_keysym_name (symbol_num); | |
6705 | if (name) | |
6706 | value = intern (name); | |
6707 | } | |
6708 | #endif | |
6709 | ||
b64b4075 | 6710 | if (NILP (value)) |
d1f50460 RS |
6711 | { |
6712 | char buf[20]; | |
6713 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6714 | value = intern (buf); |
d1f50460 | 6715 | } |
0a7f1fc0 | 6716 | |
80e4aa30 | 6717 | if (CONSP (*symbol_table)) |
4205cb08 | 6718 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6719 | else |
6720 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6721 | ||
df0f2ba1 | 6722 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6723 | builds the Qevent_symbol_elements property, which the user |
6724 | cares about. */ | |
80e4aa30 RS |
6725 | apply_modifiers (modifiers & click_modifier, value); |
6726 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6727 | } |
88cb0656 | 6728 | |
0a7f1fc0 | 6729 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6730 | return apply_modifiers (modifiers, value); |
284f4730 | 6731 | } |
6da3dd3a RS |
6732 | \f |
6733 | /* Convert a list that represents an event type, | |
6734 | such as (ctrl meta backspace), into the usual representation of that | |
6735 | event type as a number or a symbol. */ | |
6736 | ||
a1706c30 | 6737 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6738 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6739 | EVENT-DESC should contain one base event type (a character or symbol) | |
6740 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6741 | drag, down, double or triple). The base must be last. | |
6742 | The return value is an event type (a character or symbol) which | |
6743 | has the same base event type and all the specified modifiers. */) | |
6744 | (event_desc) | |
e57d8fd8 | 6745 | Lisp_Object event_desc; |
6da3dd3a RS |
6746 | { |
6747 | Lisp_Object base; | |
6748 | int modifiers = 0; | |
6749 | Lisp_Object rest; | |
6750 | ||
6751 | base = Qnil; | |
e57d8fd8 | 6752 | rest = event_desc; |
6da3dd3a RS |
6753 | while (CONSP (rest)) |
6754 | { | |
6755 | Lisp_Object elt; | |
6756 | int this = 0; | |
6757 | ||
7539e11f KR |
6758 | elt = XCAR (rest); |
6759 | rest = XCDR (rest); | |
6da3dd3a | 6760 | |
3d31316f | 6761 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6762 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6763 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6764 | |
6765 | if (this != 0) | |
6766 | modifiers |= this; | |
6767 | else if (!NILP (base)) | |
6768 | error ("Two bases given in one event"); | |
6769 | else | |
6770 | base = elt; | |
6771 | ||
6da3dd3a RS |
6772 | } |
6773 | ||
3d31316f | 6774 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6775 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6776 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6777 | |
6da3dd3a RS |
6778 | if (INTEGERP (base)) |
6779 | { | |
3d31316f RS |
6780 | /* Turn (shift a) into A. */ |
6781 | if ((modifiers & shift_modifier) != 0 | |
6782 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6783 | { | |
6784 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6785 | modifiers &= ~shift_modifier; | |
6786 | } | |
6787 | ||
6788 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6789 | if (modifiers & ctrl_modifier) |
3d31316f | 6790 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6791 | | make_ctrl_char (XINT (base))); |
6792 | else | |
6793 | return make_number (modifiers | XINT (base)); | |
6794 | } | |
6795 | else if (SYMBOLP (base)) | |
6796 | return apply_modifiers (modifiers, base); | |
6797 | else | |
8c907a56 GM |
6798 | { |
6799 | error ("Invalid base event"); | |
6800 | return Qnil; | |
6801 | } | |
6da3dd3a RS |
6802 | } |
6803 | ||
3d31316f RS |
6804 | /* Try to recognize SYMBOL as a modifier name. |
6805 | Return the modifier flag bit, or 0 if not recognized. */ | |
6806 | ||
0bcfd7d7 SM |
6807 | int |
6808 | parse_solitary_modifier (Lisp_Object symbol) | |
3d31316f | 6809 | { |
1b049b51 | 6810 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6811 | |
1b049b51 | 6812 | switch (SREF (name, 0)) |
3d31316f RS |
6813 | { |
6814 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6815 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6816 | return BIT; |
6817 | ||
6818 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6819 | if (LEN == SBYTES (name) \ |
6820 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6821 | return BIT; |
6822 | ||
6823 | case 'A': | |
6824 | SINGLE_LETTER_MOD (alt_modifier); | |
6825 | break; | |
6826 | ||
6827 | case 'a': | |
6828 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6829 | break; | |
6830 | ||
6831 | case 'C': | |
6832 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6833 | break; | |
6834 | ||
6835 | case 'c': | |
6836 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6837 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6838 | break; | |
6839 | ||
6840 | case 'H': | |
6841 | SINGLE_LETTER_MOD (hyper_modifier); | |
6842 | break; | |
6843 | ||
6844 | case 'h': | |
6845 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6846 | break; | |
6847 | ||
6848 | case 'M': | |
6849 | SINGLE_LETTER_MOD (meta_modifier); | |
6850 | break; | |
6851 | ||
6852 | case 'm': | |
6853 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6854 | break; | |
6855 | ||
6856 | case 'S': | |
6857 | SINGLE_LETTER_MOD (shift_modifier); | |
6858 | break; | |
6859 | ||
6860 | case 's': | |
6861 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6862 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6863 | SINGLE_LETTER_MOD (super_modifier); | |
6864 | break; | |
6865 | ||
6866 | case 'd': | |
6867 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6868 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6869 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6870 | break; | |
6871 | ||
6872 | case 't': | |
6873 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6874 | break; | |
6875 | ||
6876 | #undef SINGLE_LETTER_MOD | |
6877 | #undef MULTI_LETTER_MOD | |
6878 | } | |
6879 | ||
6880 | return 0; | |
6881 | } | |
6882 | ||
6da3dd3a RS |
6883 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6884 | Such a list is not valid as an event, | |
6885 | but it can be a Lucid-style event type list. */ | |
6886 | ||
6887 | int | |
6888 | lucid_event_type_list_p (object) | |
6889 | Lisp_Object object; | |
6890 | { | |
6891 | Lisp_Object tail; | |
6892 | ||
6893 | if (! CONSP (object)) | |
6894 | return 0; | |
902ae620 GM |
6895 | |
6896 | if (EQ (XCAR (object), Qhelp_echo) | |
6897 | || EQ (XCAR (object), Qvertical_line) | |
6898 | || EQ (XCAR (object), Qmode_line) | |
6899 | || EQ (XCAR (object), Qheader_line)) | |
6900 | return 0; | |
6da3dd3a | 6901 | |
7539e11f | 6902 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6903 | { |
6904 | Lisp_Object elt; | |
7539e11f | 6905 | elt = XCAR (tail); |
6da3dd3a RS |
6906 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6907 | return 0; | |
6908 | } | |
6909 | ||
6910 | return NILP (tail); | |
6911 | } | |
284f4730 | 6912 | \f |
284f4730 JB |
6913 | /* Store into *addr a value nonzero if terminal input chars are available. |
6914 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6915 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6916 | (In fact, this may actually read some input.) |
6917 | ||
a2d5fca0 JD |
6918 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6919 | timer events that are ripe. | |
6920 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6921 | events (FOCUS_IN_EVENT). | |
6922 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6923 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6924 | |
6925 | static void | |
a2d5fca0 | 6926 | get_input_pending (addr, flags) |
284f4730 | 6927 | int *addr; |
a2d5fca0 | 6928 | int flags; |
284f4730 JB |
6929 | { |
6930 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 6931 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6932 | |
6933 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6934 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6935 | return; | |
6936 | ||
6937 | /* Try to read some input and see how much we get. */ | |
6938 | gobble_input (0); | |
a2d5fca0 | 6939 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6940 | } |
6941 | ||
81931ba1 | 6942 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6943 | |
07a59269 | 6944 | void |
284f4730 JB |
6945 | gobble_input (expected) |
6946 | int expected; | |
6947 | { | |
033b73e2 MA |
6948 | #ifdef HAVE_DBUS |
6949 | /* Check whether a D-Bus message has arrived. */ | |
6950 | xd_read_queued_messages (); | |
6951 | #endif /* HAVE_DBUS */ | |
6952 | ||
284f4730 JB |
6953 | #ifdef SIGIO |
6954 | if (interrupt_input) | |
6955 | { | |
32676c08 | 6956 | SIGMASKTYPE mask; |
4f8aaa74 | 6957 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6958 | read_avail_input (expected); |
e065a56e | 6959 | sigsetmask (mask); |
284f4730 JB |
6960 | } |
6961 | else | |
81931ba1 | 6962 | #ifdef POLL_FOR_INPUT |
428a555e KL |
6963 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
6964 | but read_socket_hook is not global anymore. Let's pretend that | |
6965 | it's always set. */ | |
6966 | if (!interrupt_input && poll_suppress_count == 0) | |
81931ba1 RS |
6967 | { |
6968 | SIGMASKTYPE mask; | |
4f8aaa74 | 6969 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6970 | read_avail_input (expected); |
6971 | sigsetmask (mask); | |
6972 | } | |
6973 | else | |
284f4730 | 6974 | #endif |
284f4730 | 6975 | #endif |
12063bc5 | 6976 | read_avail_input (expected); |
284f4730 | 6977 | } |
a8015ab5 | 6978 | |
3b8f9651 | 6979 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6980 | so that read_key_sequence will notice the new current buffer. */ |
6981 | ||
07a59269 | 6982 | void |
a8015ab5 KH |
6983 | record_asynch_buffer_change () |
6984 | { | |
6985 | struct input_event event; | |
a30f0615 | 6986 | Lisp_Object tem; |
1269a761 | 6987 | EVENT_INIT (event); |
a30f0615 | 6988 | |
3b8f9651 | 6989 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6990 | event.frame_or_window = Qnil; |
da8f7368 | 6991 | event.arg = Qnil; |
241ceaf7 | 6992 | |
f65e6f7d | 6993 | #ifdef subprocesses |
a30f0615 RS |
6994 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6995 | The purpose of the event is to make read_key_sequence look up the | |
6996 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6997 | and the event could cause trouble by messing up (input-pending-p). */ | |
6998 | tem = Fwaiting_for_user_input_p (); | |
6999 | if (NILP (tem)) | |
7000 | return; | |
f65e6f7d RS |
7001 | #else |
7002 | /* We never need these events if we have no asynchronous subprocesses. */ | |
7003 | return; | |
7004 | #endif | |
a30f0615 | 7005 | |
241ceaf7 RS |
7006 | /* Make sure no interrupt happens while storing the event. */ |
7007 | #ifdef SIGIO | |
7008 | if (interrupt_input) | |
7009 | { | |
7010 | SIGMASKTYPE mask; | |
4f8aaa74 | 7011 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
7012 | kbd_buffer_store_event (&event); |
7013 | sigsetmask (mask); | |
7014 | } | |
7015 | else | |
7016 | #endif | |
7017 | { | |
7018 | stop_polling (); | |
7019 | kbd_buffer_store_event (&event); | |
7020 | start_polling (); | |
7021 | } | |
a8015ab5 | 7022 | } |
284f4730 | 7023 | \f |
284f4730 JB |
7024 | /* Read any terminal input already buffered up by the system |
7025 | into the kbd_buffer, but do not wait. | |
7026 | ||
7027 | EXPECTED should be nonzero if the caller knows there is some input. | |
7028 | ||
284f4730 JB |
7029 | Returns the number of keyboard chars read, or -1 meaning |
7030 | this is a bad time to try to read input. */ | |
7031 | ||
7032 | static int | |
7033 | read_avail_input (expected) | |
7034 | int expected; | |
7035 | { | |
6b61353c | 7036 | int nread = 0; |
80d4c824 | 7037 | int err = 0; |
6ed8eeff | 7038 | struct terminal *t; |
1269a761 | 7039 | |
23479b40 YM |
7040 | /* Store pending user signal events, if any. */ |
7041 | if (store_user_signal_events ()) | |
7042 | expected = 0; | |
7043 | ||
6ed8eeff KL |
7044 | /* Loop through the available terminals, and call their input hooks. */ |
7045 | t = terminal_list; | |
7046 | while (t) | |
6b61353c | 7047 | { |
6ed8eeff | 7048 | struct terminal *next = t->next_terminal; |
6b61353c | 7049 | |
6ed8eeff | 7050 | if (t->read_socket_hook) |
d448e982 | 7051 | { |
3b7fbceb | 7052 | int nr; |
057a9ab4 | 7053 | struct input_event hold_quit; |
d448e982 | 7054 | |
057a9ab4 KL |
7055 | EVENT_INIT (hold_quit); |
7056 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 7057 | |
057a9ab4 | 7058 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6ed8eeff | 7059 | while (nr = (*t->read_socket_hook) (t, expected, &hold_quit), nr > 0) |
057a9ab4 KL |
7060 | { |
7061 | nread += nr; | |
7062 | expected = 0; | |
7063 | } | |
033b73e2 | 7064 | |
057a9ab4 KL |
7065 | if (nr == -1) /* Not OK to read input now. */ |
7066 | { | |
7067 | err = 1; | |
7068 | } | |
7069 | else if (nr == -2) /* Non-transient error. */ | |
7070 | { | |
6ed8eeff | 7071 | /* The terminal device terminated; it should be closed. */ |
033b73e2 | 7072 | |
6ed8eeff KL |
7073 | /* Kill Emacs if this was our last terminal. */ |
7074 | if (!terminal_list->next_terminal) | |
057a9ab4 KL |
7075 | /* Formerly simply reported no input, but that |
7076 | sometimes led to a failure of Emacs to terminate. | |
7077 | SIGHUP seems appropriate if we can't reach the | |
7078 | terminal. */ | |
7079 | /* ??? Is it really right to send the signal just to | |
7080 | this process rather than to the whole process | |
7081 | group? Perhaps on systems with FIONREAD Emacs is | |
7082 | alone in its group. */ | |
7083 | kill (getpid (), SIGHUP); | |
033b73e2 | 7084 | |
e2749141 | 7085 | /* XXX Is calling delete_terminal safe here? It calls delete_frame. */ |
adf6a429 SM |
7086 | { |
7087 | Lisp_Object tmp; | |
7088 | XSETTERMINAL (tmp, t); | |
7089 | Fdelete_terminal (tmp, Qnoelisp); | |
7090 | } | |
057a9ab4 | 7091 | } |
351d2e14 | 7092 | |
057a9ab4 KL |
7093 | if (hold_quit.kind != NO_EVENT) |
7094 | kbd_buffer_store_event (&hold_quit); | |
d448e982 | 7095 | } |
6b61353c | 7096 | |
6ed8eeff | 7097 | t = next; |
6b61353c | 7098 | } |
284f4730 | 7099 | |
1cbfd764 KL |
7100 | if (err && !nread) |
7101 | nread = -1; | |
7102 | ||
8f1ce423 KL |
7103 | return nread; |
7104 | } | |
7105 | ||
7106 | /* This is the tty way of reading available input. | |
7107 | ||
6ed8eeff | 7108 | Note that each terminal device has its own `struct terminal' object, |
8f1ce423 | 7109 | and so this function is called once for each individual termcap |
6ed8eeff | 7110 | terminal. The first parameter indicates which terminal to read from. */ |
d448e982 | 7111 | |
8f1ce423 | 7112 | int |
6ed8eeff | 7113 | tty_read_avail_input (struct terminal *terminal, |
057a9ab4 KL |
7114 | int expected, |
7115 | struct input_event *hold_quit) | |
8f1ce423 | 7116 | { |
057a9ab4 KL |
7117 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
7118 | the kbd_buffer can really hold. That may prevent loss | |
7119 | of characters on some systems when input is stuffed at us. */ | |
7120 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
8f1ce423 | 7121 | int n_to_read, i; |
6ed8eeff | 7122 | struct tty_display_info *tty = terminal->display_info.tty; |
8f1ce423 | 7123 | int nread = 0; |
3b7fbceb | 7124 | |
bcc3646e | 7125 | if (!terminal->name) /* Don't read from a dead terminal. */ |
1bc973c2 | 7126 | return 0; |
ab797f65 | 7127 | |
cb22456d EZ |
7128 | if (terminal->type != output_termcap |
7129 | && terminal->type != output_msdos_raw) | |
8f1ce423 | 7130 | abort (); |
3b7fbceb | 7131 | |
ac3d2625 | 7132 | /* XXX I think the following code should be moved to separate hook |
8f1ce423 | 7133 | functions in system-dependent files. */ |
bc536d84 | 7134 | #ifdef WINDOWSNT |
8f1ce423 | 7135 | return 0; |
bc536d84 | 7136 | #else /* not WINDOWSNT */ |
cb22456d EZ |
7137 | if (! tty->term_initted) /* In case we get called during bootstrap. */ |
7138 | return 0; | |
7139 | ||
7140 | if (! tty->input) | |
7141 | return 0; /* The terminal is suspended. */ | |
7142 | ||
80e4aa30 | 7143 | #ifdef MSDOS |
8f1ce423 KL |
7144 | n_to_read = dos_keysns (); |
7145 | if (n_to_read == 0) | |
7146 | return 0; | |
3b7fbceb | 7147 | |
8f1ce423 KL |
7148 | cbuf[0] = dos_keyread (); |
7149 | nread = 1; | |
3b7fbceb | 7150 | |
c3a2738c | 7151 | #else /* not MSDOS */ |
7e5a23bd | 7152 | #ifdef HAVE_GPM |
71f44e7a | 7153 | if (gpm_tty == tty) |
7be1c21a MB |
7154 | { |
7155 | Gpm_Event event; | |
7156 | struct input_event hold_quit; | |
7157 | int gpm; | |
ae372f41 | 7158 | |
7be1c21a MB |
7159 | EVENT_INIT (hold_quit); |
7160 | hold_quit.kind = NO_EVENT; | |
ae372f41 | 7161 | |
7be1c21a MB |
7162 | while (gpm = Gpm_GetEvent (&event), gpm == 1) { |
7163 | nread += handle_one_term_event (tty, &event, &hold_quit); | |
7164 | } | |
ed5ff21d SM |
7165 | if (gpm < 0) |
7166 | /* Presumably the GPM daemon has closed the connection. */ | |
7167 | close_gpm (); | |
7be1c21a MB |
7168 | if (hold_quit.kind != NO_EVENT) |
7169 | kbd_buffer_store_event (&hold_quit); | |
7170 | if (nread) | |
7171 | return nread; | |
7172 | } | |
7e5a23bd | 7173 | #endif /* HAVE_GPM */ |
ae372f41 | 7174 | |
7be1c21a | 7175 | /* Determine how many characters we should *try* to read. */ |
284f4730 | 7176 | #ifdef FIONREAD |
8f1ce423 | 7177 | /* Find out how much input is available. */ |
0b0d3e0b | 7178 | if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0) |
8f1ce423 KL |
7179 | { |
7180 | if (! noninteractive) | |
6ed8eeff | 7181 | return -2; /* Close this terminal. */ |
8f1ce423 | 7182 | else |
d448e982 | 7183 | n_to_read = 0; |
8f1ce423 KL |
7184 | } |
7185 | if (n_to_read == 0) | |
7186 | return 0; | |
7187 | if (n_to_read > sizeof cbuf) | |
7188 | n_to_read = sizeof cbuf; | |
284f4730 | 7189 | #else /* no FIONREAD */ |
e39a993c | 7190 | #if defined (USG) || defined(CYGWIN) |
8f1ce423 KL |
7191 | /* Read some input if available, but don't wait. */ |
7192 | n_to_read = sizeof cbuf; | |
0b0d3e0b | 7193 | fcntl (fileno (tty->input), F_SETFL, O_NDELAY); |
284f4730 | 7194 | #else |
8f1ce423 | 7195 | you lose; |
284f4730 JB |
7196 | #endif |
7197 | #endif | |
7198 | ||
8f1ce423 KL |
7199 | /* Now read; for one reason or another, this will not block. |
7200 | NREAD is set to the number of chars read. */ | |
7201 | do | |
7202 | { | |
0b0d3e0b | 7203 | nread = emacs_read (fileno (tty->input), cbuf, n_to_read); |
8f1ce423 KL |
7204 | /* POSIX infers that processes which are not in the session leader's |
7205 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
7206 | this part standard and returns -1 from read (0) with errno==EIO | |
7207 | when the control tty is taken away. | |
ac3d2625 | 7208 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ |
8f1ce423 | 7209 | if (nread == -1 && errno == EIO) |
6ed8eeff | 7210 | return -2; /* Close this terminal. */ |
4624371d | 7211 | #if defined (AIX) && defined (_BSD) |
8f1ce423 KL |
7212 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
7213 | This looks incorrect, but it isn't, because _BSD causes | |
7214 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
7215 | and that causes a value other than 0 when there is no input. */ | |
7216 | if (nread == 0) | |
6ed8eeff | 7217 | return -2; /* Close this terminal. */ |
284f4730 | 7218 | #endif |
8f1ce423 KL |
7219 | } |
7220 | while ( | |
7221 | /* We used to retry the read if it was interrupted. | |
7222 | But this does the wrong thing when O_NDELAY causes | |
7223 | an EAGAIN error. Does anybody know of a situation | |
7224 | where a retry is actually needed? */ | |
791587ee | 7225 | #if 0 |
8f1ce423 | 7226 | nread < 0 && (errno == EAGAIN |
6aec06f5 | 7227 | #ifdef EFAULT |
8f1ce423 | 7228 | || errno == EFAULT |
80e4aa30 | 7229 | #endif |
284f4730 | 7230 | #ifdef EBADSLT |
8f1ce423 | 7231 | || errno == EBADSLT |
284f4730 | 7232 | #endif |
8f1ce423 | 7233 | ) |
791587ee | 7234 | #else |
8f1ce423 | 7235 | 0 |
791587ee | 7236 | #endif |
8f1ce423 | 7237 | ); |
284f4730 JB |
7238 | |
7239 | #ifndef FIONREAD | |
e39a993c | 7240 | #if defined (USG) || defined (CYGWIN) |
0b0d3e0b | 7241 | fcntl (fileno (tty->input), F_SETFL, 0); |
e39a993c | 7242 | #endif /* USG or CYGWIN */ |
284f4730 | 7243 | #endif /* no FIONREAD */ |
3b7fbceb | 7244 | |
8f1ce423 KL |
7245 | if (nread <= 0) |
7246 | return nread; | |
3b7fbceb | 7247 | |
9628b887 KL |
7248 | #endif /* not MSDOS */ |
7249 | #endif /* not WINDOWSNT */ | |
3b7fbceb | 7250 | |
284f4730 JB |
7251 | for (i = 0; i < nread; i++) |
7252 | { | |
057a9ab4 KL |
7253 | struct input_event buf; |
7254 | EVENT_INIT (buf); | |
7255 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7256 | buf.modifiers = 0; | |
8f1ce423 | 7257 | if (tty->meta_key == 1 && (cbuf[i] & 0x80)) |
057a9ab4 | 7258 | buf.modifiers = meta_modifier; |
8f1ce423 KL |
7259 | if (tty->meta_key != 2) |
7260 | cbuf[i] &= ~0x80; | |
033b73e2 | 7261 | |
057a9ab4 | 7262 | buf.code = cbuf[i]; |
ac3d2625 KL |
7263 | /* Set the frame corresponding to the active tty. Note that the |
7264 | value of selected_frame is not reliable here, redisplay tends | |
7265 | to temporarily change it. */ | |
057a9ab4 KL |
7266 | buf.frame_or_window = tty->top_frame; |
7267 | buf.arg = Qnil; | |
033b73e2 | 7268 | |
057a9ab4 KL |
7269 | kbd_buffer_store_event (&buf); |
7270 | /* Don't look at input that follows a C-g too closely. | |
7271 | This reduces lossage due to autorepeat on C-g. */ | |
7272 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
7273 | && buf.code == quit_char) | |
7274 | break; | |
284f4730 JB |
7275 | } |
7276 | ||
7277 | return nread; | |
7278 | } | |
284f4730 | 7279 | \f |
6b61353c KH |
7280 | void |
7281 | handle_async_input () | |
7282 | { | |
6b61353c | 7283 | interrupt_input_pending = 0; |
07a1e794 | 7284 | #ifdef SYNC_INPUT |
ceb18827 | 7285 | pending_signals = pending_atimers; |
07a1e794 | 7286 | #endif |
c96169a0 AR |
7287 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
7288 | doing anything dangerous. */ | |
7289 | #ifdef HAVE_NS | |
7290 | ++handling_signal; | |
7291 | #endif | |
6b61353c KH |
7292 | while (1) |
7293 | { | |
7294 | int nread; | |
7295 | nread = read_avail_input (1); | |
7296 | /* -1 means it's not ok to read the input now. | |
7297 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
7298 | 0 means there was no keyboard input available. */ | |
7299 | if (nread <= 0) | |
7300 | break; | |
6b61353c | 7301 | } |
c96169a0 AR |
7302 | #ifdef HAVE_NS |
7303 | --handling_signal; | |
7304 | #endif | |
6b61353c KH |
7305 | } |
7306 | ||
ceb18827 CY |
7307 | void |
7308 | process_pending_signals () | |
7309 | { | |
7310 | if (interrupt_input_pending) | |
7311 | handle_async_input (); | |
7312 | do_pending_atimers (); | |
7313 | } | |
7314 | ||
284f4730 JB |
7315 | #ifdef SIGIO /* for entire page */ |
7316 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
7317 | ||
4216b545 | 7318 | static SIGTYPE |
284f4730 JB |
7319 | input_available_signal (signo) |
7320 | int signo; | |
7321 | { | |
7322 | /* Must preserve main program's value of errno. */ | |
7323 | int old_errno = errno; | |
5970a8cb | 7324 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
7325 | /* USG systems forget handlers when they are used; |
7326 | must reestablish each time */ | |
7327 | signal (signo, input_available_signal); | |
7328 | #endif /* USG */ | |
7329 | ||
6b61353c KH |
7330 | #ifdef SYNC_INPUT |
7331 | interrupt_input_pending = 1; | |
ceb18827 | 7332 | pending_signals = 1; |
6b61353c | 7333 | #else |
333f1b6f | 7334 | SIGNAL_THREAD_CHECK (signo); |
bd55c35c | 7335 | #endif |
a25f766a | 7336 | |
bd55c35c JD |
7337 | if (input_available_clear_time) |
7338 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d7031edc | 7339 | |
bd55c35c | 7340 | #ifndef SYNC_INPUT |
6b61353c | 7341 | handle_async_input (); |
284f4730 | 7342 | #endif |
284f4730 | 7343 | |
284f4730 JB |
7344 | errno = old_errno; |
7345 | } | |
7346 | #endif /* SIGIO */ | |
ad163903 JB |
7347 | |
7348 | /* Send ourselves a SIGIO. | |
7349 | ||
7350 | This function exists so that the UNBLOCK_INPUT macro in | |
7351 | blockinput.h can have some way to take care of input we put off | |
7352 | dealing with, without assuming that every file which uses | |
7353 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
7354 | void | |
7355 | reinvoke_input_signal () | |
7356 | { | |
df0f2ba1 | 7357 | #ifdef SIGIO |
6b61353c | 7358 | handle_async_input (); |
ad163903 JB |
7359 | #endif |
7360 | } | |
7361 | ||
7362 | ||
284f4730 | 7363 | \f |
23479b40 YM |
7364 | /* User signal events. */ |
7365 | ||
7366 | struct user_signal_info | |
7367 | { | |
7368 | /* Signal number. */ | |
7369 | int sig; | |
7370 | ||
7371 | /* Name of the signal. */ | |
7372 | char *name; | |
7373 | ||
7374 | /* Number of pending signals. */ | |
7375 | int npending; | |
7376 | ||
7377 | struct user_signal_info *next; | |
7378 | }; | |
7379 | ||
7380 | /* List of user signals. */ | |
7381 | static struct user_signal_info *user_signals = NULL; | |
7382 | ||
7383 | void | |
7384 | add_user_signal (sig, name) | |
7385 | int sig; | |
7386 | const char *name; | |
7387 | { | |
7388 | struct user_signal_info *p; | |
7389 | ||
7390 | for (p = user_signals; p; p = p->next) | |
7391 | if (p->sig == sig) | |
7392 | /* Already added. */ | |
7393 | return; | |
7394 | ||
7395 | p = xmalloc (sizeof (struct user_signal_info)); | |
7396 | p->sig = sig; | |
7397 | p->name = xstrdup (name); | |
7398 | p->npending = 0; | |
7399 | p->next = user_signals; | |
7400 | user_signals = p; | |
7401 | ||
7402 | signal (sig, handle_user_signal); | |
7403 | } | |
7404 | ||
7405 | static SIGTYPE | |
7406 | handle_user_signal (sig) | |
7407 | int sig; | |
7408 | { | |
7409 | int old_errno = errno; | |
7410 | struct user_signal_info *p; | |
7411 | ||
7412 | #if defined (USG) && !defined (POSIX_SIGNALS) | |
7413 | /* USG systems forget handlers when they are used; | |
7414 | must reestablish each time */ | |
7415 | signal (sig, handle_user_signal); | |
7416 | #endif | |
7417 | ||
7418 | SIGNAL_THREAD_CHECK (sig); | |
7419 | ||
7420 | for (p = user_signals; p; p = p->next) | |
7421 | if (p->sig == sig) | |
7422 | { | |
7423 | p->npending++; | |
7424 | #ifdef SIGIO | |
7425 | if (interrupt_input) | |
7426 | kill (getpid (), SIGIO); | |
7427 | else | |
7428 | #endif | |
7429 | { | |
7430 | /* Tell wait_reading_process_output that it needs to wake | |
7431 | up and look around. */ | |
7432 | if (input_available_clear_time) | |
7433 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
7434 | } | |
7435 | break; | |
7436 | } | |
7437 | ||
7438 | errno = old_errno; | |
7439 | } | |
7440 | ||
7441 | static char * | |
7442 | find_user_signal_name (sig) | |
7443 | int sig; | |
7444 | { | |
7445 | struct user_signal_info *p; | |
7446 | ||
7447 | for (p = user_signals; p; p = p->next) | |
7448 | if (p->sig == sig) | |
7449 | return p->name; | |
7450 | ||
7451 | return NULL; | |
7452 | } | |
7453 | ||
7454 | static int | |
7455 | store_user_signal_events () | |
7456 | { | |
7457 | struct user_signal_info *p; | |
7458 | struct input_event buf; | |
7459 | int nstored = 0; | |
7460 | ||
7461 | for (p = user_signals; p; p = p->next) | |
7462 | if (p->npending > 0) | |
7463 | { | |
7464 | SIGMASKTYPE mask; | |
7465 | ||
7466 | if (nstored == 0) | |
7467 | { | |
7468 | bzero (&buf, sizeof buf); | |
7469 | buf.kind = USER_SIGNAL_EVENT; | |
7470 | buf.frame_or_window = selected_frame; | |
7471 | } | |
7472 | nstored += p->npending; | |
7473 | ||
7474 | mask = sigblock (sigmask (p->sig)); | |
7475 | do | |
7476 | { | |
23479b40 YM |
7477 | buf.code = p->sig; |
7478 | kbd_buffer_store_event (&buf); | |
7479 | p->npending--; | |
7480 | } | |
7481 | while (p->npending > 0); | |
7482 | sigsetmask (mask); | |
7483 | } | |
7484 | ||
7485 | return nstored; | |
7486 | } | |
7487 | ||
7488 | \f | |
318ab85c SM |
7489 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
7490 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
7491 | |
7492 | /* These variables hold the vector under construction within | |
7493 | menu_bar_items and its subroutines, and the current index | |
7494 | for storing into that vector. */ | |
7495 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 7496 | static int menu_bar_items_index; |
5ec75a55 | 7497 | |
b7c49376 RS |
7498 | /* Return a vector of menu items for a menu bar, appropriate |
7499 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 7500 | KEY STRING MAPLIST. |
b7c49376 RS |
7501 | |
7502 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
7503 | |
7504 | Lisp_Object | |
b7c49376 RS |
7505 | menu_bar_items (old) |
7506 | Lisp_Object old; | |
5ec75a55 RS |
7507 | { |
7508 | /* The number of keymaps we're scanning right now, and the number of | |
7509 | keymaps we have allocated space for. */ | |
7510 | int nmaps; | |
7511 | ||
7512 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
7513 | in the current keymaps, or nil where it is not a prefix. */ | |
7514 | Lisp_Object *maps; | |
7515 | ||
aebfea68 | 7516 | Lisp_Object def, tail; |
5ec75a55 RS |
7517 | |
7518 | Lisp_Object result; | |
7519 | ||
7520 | int mapno; | |
47d319aa | 7521 | Lisp_Object oquit; |
5ec75a55 | 7522 | |
b7c49376 RS |
7523 | int i; |
7524 | ||
db60d856 JB |
7525 | /* In order to build the menus, we need to call the keymap |
7526 | accessors. They all call QUIT. But this function is called | |
7527 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
7528 | quitting while building the menus. |
7529 | We do this instead of specbind because (1) errors will clear it anyway | |
7530 | and (2) this avoids risk of specpdl overflow. */ | |
7531 | oquit = Vinhibit_quit; | |
df0f2ba1 | 7532 | Vinhibit_quit = Qt; |
db60d856 | 7533 | |
b7c49376 RS |
7534 | if (!NILP (old)) |
7535 | menu_bar_items_vector = old; | |
7536 | else | |
7537 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
7538 | menu_bar_items_index = 0; | |
7539 | ||
5ec75a55 RS |
7540 | /* Build our list of keymaps. |
7541 | If we recognize a function key and replace its escape sequence in | |
7542 | keybuf with its symbol, or if the sequence starts with a mouse | |
7543 | click and we need to switch buffers, we jump back here to rebuild | |
7544 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7545 | { |
5ec75a55 RS |
7546 | Lisp_Object *tmaps; |
7547 | ||
217258d5 | 7548 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 7549 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 7550 | { |
217258d5 KH |
7551 | /* Yes, use them (if non-nil) as well as the global map. */ |
7552 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7553 | nmaps = 0; | |
7554 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7555 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7556 | if (!NILP (Voverriding_local_map)) | |
7557 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
7558 | } |
7559 | else | |
7560 | { | |
fd646341 KS |
7561 | /* No, so use major and minor mode keymaps and keymap property. |
7562 | Note that menu-bar bindings in the local-map and keymap | |
7563 | properties may not work reliable, as they are only | |
7564 | recognized when the menu-bar (or mode-line) is updated, | |
7565 | which does not normally happen after every command. */ | |
7566 | Lisp_Object tem; | |
7567 | int nminor; | |
7568 | nminor = current_minor_maps (NULL, &tmaps); | |
7569 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7570 | nmaps = 0; | |
7571 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7572 | maps[nmaps++] = tem; | |
7573 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7574 | nmaps += nminor; | |
7575 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 7576 | } |
217258d5 | 7577 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
7578 | } |
7579 | ||
7580 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
7581 | ||
7582 | result = Qnil; | |
7583 | ||
e58aa385 | 7584 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
7585 | if (!NILP (maps[mapno])) |
7586 | { | |
341a09cf SM |
7587 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
7588 | 0, 1); | |
02067692 | 7589 | if (CONSP (def)) |
4216b545 SM |
7590 | { |
7591 | menu_bar_one_keymap_changed_items = Qnil; | |
7592 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
7593 | } | |
25126faa | 7594 | } |
5ec75a55 | 7595 | |
b7c49376 RS |
7596 | /* Move to the end those items that should be at the end. */ |
7597 | ||
7539e11f | 7598 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7599 | { |
b7c49376 RS |
7600 | int i; |
7601 | int end = menu_bar_items_index; | |
7602 | ||
35b3402f | 7603 | for (i = 0; i < end; i += 4) |
7539e11f | 7604 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7605 | { |
35b3402f | 7606 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7607 | /* Move the item at index I to the end, |
7608 | shifting all the others forward. */ | |
7609 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7610 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7611 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7612 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7613 | if (end > i + 4) | |
7614 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7615 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7616 | (end - i - 4) * sizeof (Lisp_Object)); |
7617 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7618 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7619 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7620 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7621 | break; |
b7c49376 RS |
7622 | } |
7623 | } | |
9f9c0e27 | 7624 | |
0c9071cd | 7625 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7626 | i = menu_bar_items_index; |
35b3402f | 7627 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7628 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7629 | /* Add this item. */ |
7630 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7631 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7632 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7633 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7634 | menu_bar_items_index = i; |
a73c5e29 | 7635 | |
47d319aa | 7636 | Vinhibit_quit = oquit; |
b7c49376 | 7637 | return menu_bar_items_vector; |
5ec75a55 RS |
7638 | } |
7639 | \f | |
f5e09c8b RS |
7640 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7641 | If there's already an item for KEY, add this DEF to it. */ | |
7642 | ||
e8886a1d RS |
7643 | Lisp_Object item_properties; |
7644 | ||
b7c49376 | 7645 | static void |
4216b545 SM |
7646 | menu_bar_item (key, item, dummy1, dummy2) |
7647 | Lisp_Object key, item, dummy1; | |
7648 | void *dummy2; | |
5ec75a55 | 7649 | { |
e8886a1d | 7650 | struct gcpro gcpro1; |
b7c49376 | 7651 | int i; |
759860a6 | 7652 | Lisp_Object tem; |
5ec75a55 | 7653 | |
e8886a1d | 7654 | if (EQ (item, Qundefined)) |
e58aa385 | 7655 | { |
f5e09c8b | 7656 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7657 | discard any previously made menu bar item. */ |
b7c49376 | 7658 | |
35b3402f | 7659 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7660 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7661 | { | |
35b3402f RS |
7662 | if (menu_bar_items_index > i + 4) |
7663 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7664 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7665 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7666 | menu_bar_items_index -= 4; | |
b7c49376 | 7667 | } |
e58aa385 RS |
7668 | } |
7669 | ||
759860a6 RS |
7670 | /* If this keymap has already contributed to this KEY, |
7671 | don't contribute to it a second time. */ | |
7672 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7673 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7674 | return; |
7675 | ||
7676 | menu_bar_one_keymap_changed_items | |
7677 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7678 | ||
9cd2ced7 SM |
7679 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7680 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7681 | it still correctly hides any further menu item. */ | |
7682 | GCPRO1 (key); | |
7683 | i = parse_menu_item (item, 0, 1); | |
7684 | UNGCPRO; | |
7685 | if (!i) | |
7686 | return; | |
7687 | ||
e8886a1d RS |
7688 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7689 | ||
f5e09c8b | 7690 | /* Find any existing item for this KEY. */ |
35b3402f | 7691 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7692 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7693 | break; | |
7694 | ||
f5e09c8b | 7695 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7696 | if (i == menu_bar_items_index) |
7697 | { | |
7698 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7699 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7700 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7701 | /* Add this item. */ |
7702 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7703 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7704 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7705 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7706 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7707 | menu_bar_items_index = i; |
7708 | } | |
e8886a1d | 7709 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7710 | else |
7711 | { | |
7712 | Lisp_Object old; | |
7713 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7714 | /* If the new and the old items are not both keymaps, |
7715 | the lookup will only find `item'. */ | |
7716 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7717 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7718 | } |
5ec75a55 RS |
7719 | } |
7720 | \f | |
e8886a1d RS |
7721 | /* This is used as the handler when calling menu_item_eval_property. */ |
7722 | static Lisp_Object | |
7723 | menu_item_eval_property_1 (arg) | |
7724 | Lisp_Object arg; | |
7725 | { | |
7726 | /* If we got a quit from within the menu computation, | |
7727 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7728 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7729 | Fsignal (Qquit, Qnil); |
7730 | ||
7731 | return Qnil; | |
7732 | } | |
7733 | ||
c60ee5e7 | 7734 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7735 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7736 | Lisp_Object |
e8886a1d RS |
7737 | menu_item_eval_property (sexpr) |
7738 | Lisp_Object sexpr; | |
7739 | { | |
aed13378 | 7740 | int count = SPECPDL_INDEX (); |
e8886a1d | 7741 | Lisp_Object val; |
44e553a3 | 7742 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7743 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7744 | menu_item_eval_property_1); | |
44e553a3 | 7745 | return unbind_to (count, val); |
e8886a1d RS |
7746 | } |
7747 | ||
7748 | /* This function parses a menu item and leaves the result in the | |
7749 | vector item_properties. | |
7750 | ITEM is a key binding, a possible menu item. | |
7751 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7752 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7753 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7754 | top level. |
fd3613d7 | 7755 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7756 | parse_menu_item returns true if the item is a menu item and false |
7757 | otherwise. */ | |
7758 | ||
7759 | int | |
7760 | parse_menu_item (item, notreal, inmenubar) | |
7761 | Lisp_Object item; | |
7762 | int notreal, inmenubar; | |
7763 | { | |
adc1d5c8 | 7764 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7765 | Lisp_Object cachelist; |
7766 | Lisp_Object filter; | |
7767 | Lisp_Object keyhint; | |
e8886a1d | 7768 | int i; |
74c1de23 RS |
7769 | int newcache = 0; |
7770 | ||
07ba902e RS |
7771 | cachelist = Qnil; |
7772 | filter = Qnil; | |
7773 | keyhint = Qnil; | |
7774 | ||
e8886a1d RS |
7775 | if (!CONSP (item)) |
7776 | return 0; | |
7777 | ||
e8886a1d RS |
7778 | /* Create item_properties vector if necessary. */ |
7779 | if (NILP (item_properties)) | |
7780 | item_properties | |
7781 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7782 | ||
7783 | /* Initialize optional entries. */ | |
7784 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
b1ebcadb SM |
7785 | ASET (item_properties, i, Qnil); |
7786 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); | |
c60ee5e7 | 7787 | |
e8886a1d | 7788 | /* Save the item here to protect it from GC. */ |
b1ebcadb | 7789 | ASET (item_properties, ITEM_PROPERTY_ITEM, item); |
e8886a1d | 7790 | |
7539e11f | 7791 | item_string = XCAR (item); |
e8886a1d RS |
7792 | |
7793 | start = item; | |
7539e11f | 7794 | item = XCDR (item); |
e8886a1d RS |
7795 | if (STRINGP (item_string)) |
7796 | { | |
7797 | /* Old format menu item. */ | |
b1ebcadb | 7798 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d RS |
7799 | |
7800 | /* Maybe help string. */ | |
7539e11f | 7801 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7802 | { |
b1ebcadb | 7803 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7804 | start = item; |
7539e11f | 7805 | item = XCDR (item); |
e8886a1d | 7806 | } |
c60ee5e7 | 7807 | |
31f84d03 | 7808 | /* Maybe key binding cache. */ |
7539e11f KR |
7809 | if (CONSP (item) && CONSP (XCAR (item)) |
7810 | && (NILP (XCAR (XCAR (item))) | |
7811 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7812 | { |
7539e11f KR |
7813 | cachelist = XCAR (item); |
7814 | item = XCDR (item); | |
e8886a1d | 7815 | } |
c60ee5e7 | 7816 | |
e8886a1d | 7817 | /* This is the real definition--the function to run. */ |
b1ebcadb | 7818 | ASET (item_properties, ITEM_PROPERTY_DEF, item); |
e8886a1d RS |
7819 | |
7820 | /* Get enable property, if any. */ | |
7821 | if (SYMBOLP (item)) | |
7822 | { | |
7823 | tem = Fget (item, Qmenu_enable); | |
9d56e0da | 7824 | if (!NILP (Venable_disabled_menus_and_buttons)) |
b1ebcadb | 7825 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7826 | else if (!NILP (tem)) |
b1ebcadb | 7827 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7828 | } |
7829 | } | |
7830 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7831 | { | |
7832 | /* New format menu item. */ | |
b1ebcadb | 7833 | ASET (item_properties, ITEM_PROPERTY_NAME, XCAR (item)); |
7539e11f | 7834 | start = XCDR (item); |
e8886a1d RS |
7835 | if (CONSP (start)) |
7836 | { | |
7837 | /* We have a real binding. */ | |
b1ebcadb | 7838 | ASET (item_properties, ITEM_PROPERTY_DEF, XCAR (start)); |
e8886a1d | 7839 | |
7539e11f | 7840 | item = XCDR (start); |
e8886a1d | 7841 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7842 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7843 | { |
7539e11f KR |
7844 | cachelist = XCAR (item); |
7845 | item = XCDR (item); | |
e8886a1d RS |
7846 | } |
7847 | ||
7848 | /* Parse properties. */ | |
7539e11f | 7849 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7850 | { |
7539e11f KR |
7851 | tem = XCAR (item); |
7852 | item = XCDR (item); | |
e8886a1d RS |
7853 | |
7854 | if (EQ (tem, QCenable)) | |
9d56e0da EZ |
7855 | { |
7856 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
b1ebcadb | 7857 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7858 | else |
b1ebcadb | 7859 | ASET (item_properties, ITEM_PROPERTY_ENABLE, XCAR (item)); |
9d56e0da | 7860 | } |
e8886a1d RS |
7861 | else if (EQ (tem, QCvisible) && !notreal) |
7862 | { | |
7863 | /* If got a visible property and that evaluates to nil | |
7864 | then ignore this item. */ | |
7539e11f | 7865 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7866 | if (NILP (tem)) |
adc1d5c8 | 7867 | return 0; |
e8886a1d RS |
7868 | } |
7869 | else if (EQ (tem, QChelp)) | |
b1ebcadb | 7870 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7871 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7872 | filter = item; |
7873 | else if (EQ (tem, QCkey_sequence)) | |
7874 | { | |
7539e11f | 7875 | tem = XCAR (item); |
74c1de23 RS |
7876 | if (NILP (cachelist) |
7877 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7878 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7879 | keyhint = item; | |
7880 | } | |
7881 | else if (EQ (tem, QCkeys)) | |
7882 | { | |
7539e11f | 7883 | tem = XCAR (item); |
03cee6ae | 7884 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
b1ebcadb | 7885 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
74c1de23 | 7886 | } |
7539e11f | 7887 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7888 | { |
74c1de23 | 7889 | Lisp_Object type; |
7539e11f KR |
7890 | tem = XCAR (item); |
7891 | type = XCAR (tem); | |
e8886a1d RS |
7892 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7893 | { | |
b1ebcadb SM |
7894 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
7895 | XCDR (tem)); | |
7896 | ASET (item_properties, ITEM_PROPERTY_TYPE, type); | |
e8886a1d RS |
7897 | } |
7898 | } | |
7539e11f | 7899 | item = XCDR (item); |
e8886a1d RS |
7900 | } |
7901 | } | |
7902 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7903 | return 0; |
e8886a1d RS |
7904 | } |
7905 | else | |
adc1d5c8 | 7906 | return 0; /* not a menu item */ |
e8886a1d RS |
7907 | |
7908 | /* If item string is not a string, evaluate it to get string. | |
7909 | If we don't get a string, skip this item. */ | |
3626fb1a | 7910 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7911 | if (!(STRINGP (item_string) || notreal)) |
7912 | { | |
7913 | item_string = menu_item_eval_property (item_string); | |
7914 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7915 | return 0; |
b1ebcadb | 7916 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d | 7917 | } |
c60ee5e7 | 7918 | |
e8886a1d | 7919 | /* If got a filter apply it on definition. */ |
3626fb1a | 7920 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7921 | if (!NILP (filter)) |
7922 | { | |
7539e11f | 7923 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7924 | list2 (Qquote, def))); |
7925 | ||
b1ebcadb | 7926 | ASET (item_properties, ITEM_PROPERTY_DEF, def); |
e8886a1d RS |
7927 | } |
7928 | ||
e8886a1d | 7929 | /* Enable or disable selection of item. */ |
3626fb1a | 7930 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7931 | if (!EQ (tem, Qt)) |
7932 | { | |
7933 | if (notreal) | |
7934 | tem = Qt; | |
7935 | else | |
7936 | tem = menu_item_eval_property (tem); | |
7937 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7938 | return 0; /* Ignore disabled items in menu bar. */ |
b1ebcadb | 7939 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7940 | } |
7941 | ||
7189cad8 SM |
7942 | /* If we got no definition, this item is just unselectable text which |
7943 | is OK in a submenu but not in the menubar. */ | |
7944 | if (NILP (def)) | |
7945 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7946 | |
e8886a1d | 7947 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7948 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7949 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7950 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7951 | if (CONSP (tem)) |
e8886a1d | 7952 | { |
b1ebcadb SM |
7953 | ASET (item_properties, ITEM_PROPERTY_MAP, tem); |
7954 | ASET (item_properties, ITEM_PROPERTY_DEF, tem); | |
e8886a1d RS |
7955 | return 1; |
7956 | } | |
c60ee5e7 | 7957 | |
9ac425d1 RS |
7958 | /* At the top level in the menu bar, do likewise for commands also. |
7959 | The menu bar does not display equivalent key bindings anyway. | |
7960 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7961 | if (inmenubar > 0) | |
7962 | return 1; | |
e8886a1d RS |
7963 | |
7964 | /* This is a command. See if there is an equivalent key binding. */ | |
7965 | if (NILP (cachelist)) | |
7966 | { | |
74c1de23 | 7967 | /* We have to create a cachelist. */ |
86b89713 SM |
7968 | /* With the introduction of where_is_cache, the computation |
7969 | of equivalent key bindings is sufficiently fast that we | |
7970 | do not need to cache it here any more. */ | |
0a170079 SM |
7971 | /* CHECK_IMPURE (start); |
7972 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); | |
7973 | cachelist = XCAR (XCDR (start)); */ | |
a5804157 | 7974 | cachelist = Fcons (Qnil, Qnil); |
74c1de23 | 7975 | newcache = 1; |
3626fb1a | 7976 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7977 | if (!NILP (keyhint)) |
7978 | { | |
f3fbd155 | 7979 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7980 | newcache = 0; |
7981 | } | |
7982 | else if (STRINGP (tem)) | |
7983 | { | |
f3fbd155 KR |
7984 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7985 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7986 | } |
7987 | } | |
c60ee5e7 | 7988 | |
7539e11f | 7989 | tem = XCAR (cachelist); |
74c1de23 RS |
7990 | if (!EQ (tem, Qt)) |
7991 | { | |
7992 | int chkcache = 0; | |
7993 | Lisp_Object prefix; | |
7994 | ||
7995 | if (!NILP (tem)) | |
b74e16a3 | 7996 | tem = Fkey_binding (tem, Qnil, Qnil, Qnil); |
74c1de23 | 7997 | |
3626fb1a | 7998 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7999 | if (CONSP (prefix)) |
8000 | { | |
7539e11f KR |
8001 | def = XCAR (prefix); |
8002 | prefix = XCDR (prefix); | |
74c1de23 | 8003 | } |
e8886a1d | 8004 | else |
3626fb1a | 8005 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 8006 | |
9867523c | 8007 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
8008 | { |
8009 | if (newcache /* Always check first time. */ | |
8010 | /* Should we check everything when precomputing key | |
8011 | bindings? */ | |
74c1de23 RS |
8012 | /* If something had no key binding before, don't recheck it |
8013 | because that is too slow--except if we have a list of | |
8014 | rebound commands in Vdefine_key_rebound_commands, do | |
8015 | recheck any command that appears in that list. */ | |
8016 | || (CONSP (Vdefine_key_rebound_commands) | |
8017 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
8018 | chkcache = 1; | |
8019 | } | |
8020 | /* We had a saved key. Is it still bound to the command? */ | |
8021 | else if (NILP (tem) | |
03cee6ae GM |
8022 | || (!EQ (tem, def) |
8023 | /* If the command is an alias for another | |
8024 | (such as lmenu.el set it up), check if the | |
8025 | original command matches the cached command. */ | |
8026 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
8027 | chkcache = 1; /* Need to recompute key binding. */ |
8028 | ||
8029 | if (chkcache) | |
8030 | { | |
8031 | /* Recompute equivalent key binding. If the command is an alias | |
8032 | for another (such as lmenu.el set it up), see if the original | |
8033 | command name has equivalent keys. Otherwise look up the | |
8034 | specified command itself. We don't try both, because that | |
8035 | makes lmenu menus slow. */ | |
3626fb1a GM |
8036 | if (SYMBOLP (def) |
8037 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
8038 | && ! NILP (Fget (def, Qmenu_alias))) |
8039 | def = XSYMBOL (def)->function; | |
8b9940e6 | 8040 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 8041 | XSETCAR (cachelist, tem); |
74c1de23 RS |
8042 | if (NILP (tem)) |
8043 | { | |
f3fbd155 | 8044 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
8045 | chkcache = 0; |
8046 | } | |
8047 | } | |
7539e11f | 8048 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 8049 | { |
7539e11f | 8050 | tem = XCAR (cachelist); |
74c1de23 RS |
8051 | chkcache = 1; |
8052 | } | |
8053 | ||
8054 | newcache = chkcache; | |
8055 | if (chkcache) | |
8056 | { | |
a1bfe073 | 8057 | tem = Fkey_description (tem, Qnil); |
74c1de23 RS |
8058 | if (CONSP (prefix)) |
8059 | { | |
7539e11f KR |
8060 | if (STRINGP (XCAR (prefix))) |
8061 | tem = concat2 (XCAR (prefix), tem); | |
8062 | if (STRINGP (XCDR (prefix))) | |
8063 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 8064 | } |
f3fbd155 | 8065 | XSETCDR (cachelist, tem); |
74c1de23 RS |
8066 | } |
8067 | } | |
8068 | ||
7539e11f | 8069 | tem = XCDR (cachelist); |
74c1de23 | 8070 | if (newcache && !NILP (tem)) |
e8886a1d | 8071 | { |
ee2e9728 | 8072 | tem = concat2 (build_string (" "), tem); |
edfda783 | 8073 | /* tem = concat3 (build_string (" ("), tem, build_string (")")); */ |
f3fbd155 | 8074 | XSETCDR (cachelist, tem); |
e8886a1d RS |
8075 | } |
8076 | ||
8077 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
8078 | if (notreal) | |
adc1d5c8 | 8079 | return 1; |
e8886a1d RS |
8080 | |
8081 | /* If we have an equivalent key binding, use that. */ | |
b1ebcadb | 8082 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
adc1d5c8 RS |
8083 | |
8084 | /* Include this when menu help is implemented. | |
8085 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
8086 | if (!(NILP (tem) || STRINGP (tem))) | |
8087 | { | |
8088 | tem = menu_item_eval_property (tem); | |
8089 | if (!STRINGP (tem)) | |
8090 | tem = Qnil; | |
8091 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
8092 | } | |
e8886a1d RS |
8093 | */ |
8094 | ||
c60ee5e7 | 8095 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 8096 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 8097 | if (!NILP (tem)) |
b1ebcadb SM |
8098 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
8099 | menu_item_eval_property (tem)); | |
e8886a1d | 8100 | |
e8886a1d RS |
8101 | return 1; |
8102 | } | |
7ee32cda GM |
8103 | |
8104 | ||
8105 | \f | |
8106 | /*********************************************************************** | |
8107 | Tool-bars | |
8108 | ***********************************************************************/ | |
8109 | ||
9ea173e8 | 8110 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 8111 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 8112 | in the vector. */ |
7ee32cda | 8113 | |
9ea173e8 | 8114 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 8115 | |
9ea173e8 GM |
8116 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
8117 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 8118 | |
9ea173e8 | 8119 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 8120 | |
9ea173e8 | 8121 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 8122 | |
9ea173e8 | 8123 | static int ntool_bar_items; |
7ee32cda | 8124 | |
cf0590c4 | 8125 | /* The symbols `tool-bar', `:image' and `:rtl'. */ |
7ee32cda | 8126 | |
9ea173e8 | 8127 | extern Lisp_Object Qtool_bar; |
7ee32cda | 8128 | Lisp_Object QCimage; |
cf0590c4 | 8129 | Lisp_Object Qrtl; |
7ee32cda GM |
8130 | |
8131 | /* Function prototypes. */ | |
8132 | ||
9ea173e8 | 8133 | static void init_tool_bar_items P_ ((Lisp_Object)); |
9c8c4d5b | 8134 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
9ea173e8 GM |
8135 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); |
8136 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
8137 | |
8138 | ||
9ea173e8 | 8139 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 8140 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 8141 | tool bar items found. */ |
7ee32cda GM |
8142 | |
8143 | Lisp_Object | |
9ea173e8 | 8144 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
8145 | Lisp_Object reuse; |
8146 | int *nitems; | |
8147 | { | |
8148 | Lisp_Object *maps; | |
8149 | int nmaps, i; | |
8150 | Lisp_Object oquit; | |
8151 | Lisp_Object *tmaps; | |
7ee32cda GM |
8152 | |
8153 | *nitems = 0; | |
8154 | ||
8155 | /* In order to build the menus, we need to call the keymap | |
8156 | accessors. They all call QUIT. But this function is called | |
8157 | during redisplay, during which a quit is fatal. So inhibit | |
8158 | quitting while building the menus. We do this instead of | |
8159 | specbind because (1) errors will clear it anyway and (2) this | |
8160 | avoids risk of specpdl overflow. */ | |
8161 | oquit = Vinhibit_quit; | |
8162 | Vinhibit_quit = Qt; | |
c60ee5e7 | 8163 | |
9ea173e8 GM |
8164 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
8165 | init_tool_bar_items (reuse); | |
7ee32cda GM |
8166 | |
8167 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
8168 | to process. */ | |
c60ee5e7 | 8169 | |
7ee32cda GM |
8170 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
8171 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8172 | { | |
8173 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8174 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
8175 | nmaps = 0; | |
8176 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8177 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8178 | if (!NILP (Voverriding_local_map)) | |
8179 | maps[nmaps++] = Voverriding_local_map; | |
8180 | } | |
8181 | else | |
8182 | { | |
fd646341 KS |
8183 | /* No, so use major and minor mode keymaps and keymap property. |
8184 | Note that tool-bar bindings in the local-map and keymap | |
8185 | properties may not work reliable, as they are only | |
8186 | recognized when the tool-bar (or mode-line) is updated, | |
8187 | which does not normally happen after every command. */ | |
8188 | Lisp_Object tem; | |
8189 | int nminor; | |
8190 | nminor = current_minor_maps (NULL, &tmaps); | |
8191 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
8192 | nmaps = 0; | |
8193 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
8194 | maps[nmaps++] = tem; | |
8195 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
8196 | nmaps += nminor; | |
8197 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
8198 | } |
8199 | ||
8200 | /* Add global keymap at the end. */ | |
8201 | maps[nmaps++] = current_global_map; | |
8202 | ||
8203 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 8204 | key `tool-bar'. */ |
7ee32cda GM |
8205 | for (i = nmaps - 1; i >= 0; --i) |
8206 | if (!NILP (maps[i])) | |
8207 | { | |
8208 | Lisp_Object keymap; | |
db785038 | 8209 | |
341a09cf | 8210 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 8211 | if (CONSP (keymap)) |
293bd733 | 8212 | map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1); |
7ee32cda GM |
8213 | } |
8214 | ||
8215 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
8216 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
8217 | return tool_bar_items_vector; | |
7ee32cda GM |
8218 | } |
8219 | ||
8220 | ||
8221 | /* Process the definition of KEY which is DEF. */ | |
8222 | ||
8223 | static void | |
9c8c4d5b | 8224 | process_tool_bar_item (key, def, data, args) |
293bd733 SM |
8225 | Lisp_Object key, def, data; |
8226 | void *args; | |
7ee32cda GM |
8227 | { |
8228 | int i; | |
8229 | extern Lisp_Object Qundefined; | |
8230 | struct gcpro gcpro1, gcpro2; | |
8231 | ||
9ea173e8 | 8232 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
8233 | eval. */ |
8234 | GCPRO2 (key, def); | |
8235 | ||
8236 | if (EQ (def, Qundefined)) | |
8237 | { | |
8238 | /* If a map has an explicit `undefined' as definition, | |
8239 | discard any previously made item. */ | |
9ea173e8 | 8240 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 8241 | { |
9ea173e8 | 8242 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 8243 | |
9ea173e8 | 8244 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 8245 | { |
9ea173e8 GM |
8246 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
8247 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
8248 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 8249 | * sizeof (Lisp_Object))); |
9ea173e8 | 8250 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
8251 | break; |
8252 | } | |
8253 | } | |
8254 | } | |
9ea173e8 GM |
8255 | else if (parse_tool_bar_item (key, def)) |
8256 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 8257 | more than one definition for the same key. */ |
9ea173e8 | 8258 | append_tool_bar_item (); |
7ee32cda GM |
8259 | |
8260 | UNGCPRO; | |
8261 | } | |
8262 | ||
8263 | ||
9ea173e8 GM |
8264 | /* Parse a tool bar item specification ITEM for key KEY and return the |
8265 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
8266 | invalid. |
8267 | ||
8268 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 8269 | |
7ee32cda GM |
8270 | CAPTION is the caption of the item, If it's not a string, it is |
8271 | evaluated to get a string. | |
c60ee5e7 | 8272 | |
9ea173e8 | 8273 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
8274 | as binding are currently ignored. |
8275 | ||
8276 | The following properties are recognized: | |
8277 | ||
8278 | - `:enable FORM'. | |
c60ee5e7 | 8279 | |
9ea173e8 GM |
8280 | FORM is evaluated and specifies whether the tool bar item is |
8281 | enabled or disabled. | |
c60ee5e7 | 8282 | |
7ee32cda | 8283 | - `:visible FORM' |
c60ee5e7 | 8284 | |
9ea173e8 | 8285 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 8286 | |
7ee32cda GM |
8287 | - `:filter FUNCTION' |
8288 | ||
8289 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
8290 | result is stored as the new binding. | |
c60ee5e7 | 8291 | |
7ee32cda GM |
8292 | - `:button (TYPE SELECTED)' |
8293 | ||
8294 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
8295 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 8296 | |
7ee32cda GM |
8297 | - `:image IMAGES' |
8298 | ||
8299 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 8300 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 8301 | |
7ee32cda | 8302 | - `:help HELP-STRING'. |
c60ee5e7 | 8303 | |
9ea173e8 | 8304 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
8305 | |
8306 | static int | |
9ea173e8 | 8307 | parse_tool_bar_item (key, item) |
7ee32cda GM |
8308 | Lisp_Object key, item; |
8309 | { | |
9ea173e8 GM |
8310 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
8311 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
8312 | |
8313 | Lisp_Object filter = Qnil; | |
8314 | Lisp_Object caption; | |
7ee32cda | 8315 | int i; |
7ee32cda | 8316 | |
8c907a56 GM |
8317 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
8318 | Rule out items that aren't lists, don't start with | |
8319 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
8320 | list. */ |
8321 | if (!CONSP (item) | |
8322 | || !EQ (XCAR (item), Qmenu_item) | |
8323 | || (item = XCDR (item), | |
8324 | !CONSP (item))) | |
8325 | return 0; | |
8326 | ||
9ea173e8 | 8327 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 8328 | defaults. */ |
9ea173e8 | 8329 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 8330 | { |
9ea173e8 | 8331 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
8332 | PROP (i) = Qnil; |
8333 | } | |
8334 | else | |
9ea173e8 GM |
8335 | tool_bar_item_properties |
8336 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 8337 | |
7ee32cda | 8338 | /* Set defaults. */ |
9ea173e8 GM |
8339 | PROP (TOOL_BAR_ITEM_KEY) = key; |
8340 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 8341 | |
7ee32cda GM |
8342 | /* Get the caption of the item. If the caption is not a string, |
8343 | evaluate it to get a string. If we don't get a string, skip this | |
8344 | item. */ | |
8345 | caption = XCAR (item); | |
8346 | if (!STRINGP (caption)) | |
8347 | { | |
8348 | caption = menu_item_eval_property (caption); | |
8349 | if (!STRINGP (caption)) | |
8350 | return 0; | |
8351 | } | |
9ea173e8 | 8352 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
8353 | |
8354 | /* Give up if rest following the caption is not a list. */ | |
8355 | item = XCDR (item); | |
8356 | if (!CONSP (item)) | |
8357 | return 0; | |
8358 | ||
8359 | /* Store the binding. */ | |
9ea173e8 | 8360 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
8361 | item = XCDR (item); |
8362 | ||
8c907a56 GM |
8363 | /* Ignore cached key binding, if any. */ |
8364 | if (CONSP (item) && CONSP (XCAR (item))) | |
8365 | item = XCDR (item); | |
8366 | ||
7ee32cda GM |
8367 | /* Process the rest of the properties. */ |
8368 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
8369 | { | |
8370 | Lisp_Object key, value; | |
8371 | ||
8372 | key = XCAR (item); | |
8373 | value = XCAR (XCDR (item)); | |
8374 | ||
8375 | if (EQ (key, QCenable)) | |
9d56e0da EZ |
8376 | { |
8377 | /* `:enable FORM'. */ | |
8378 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
8379 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
8380 | else | |
8381 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; | |
8382 | } | |
7ee32cda GM |
8383 | else if (EQ (key, QCvisible)) |
8384 | { | |
8385 | /* `:visible FORM'. If got a visible property and that | |
8386 | evaluates to nil then ignore this item. */ | |
8387 | if (NILP (menu_item_eval_property (value))) | |
8388 | return 0; | |
8389 | } | |
8390 | else if (EQ (key, QChelp)) | |
8391 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 8392 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
8393 | else if (EQ (key, QCfilter)) |
8394 | /* ':filter FORM'. */ | |
8395 | filter = value; | |
8396 | else if (EQ (key, QCbutton) && CONSP (value)) | |
8397 | { | |
8398 | /* `:button (TYPE . SELECTED)'. */ | |
8399 | Lisp_Object type, selected; | |
8400 | ||
8401 | type = XCAR (value); | |
8402 | selected = XCDR (value); | |
8403 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
8404 | { | |
9ea173e8 GM |
8405 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
8406 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
8407 | } |
8408 | } | |
8409 | else if (EQ (key, QCimage) | |
8410 | && (CONSP (value) | |
8411 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
8412 | /* Value is either a single image specification or a vector | |
27fd22dc | 8413 | of 4 such specifications for the different button states. */ |
9ea173e8 | 8414 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
cf0590c4 JD |
8415 | else if (EQ (key, Qrtl)) |
8416 | /* ':rtl STRING' */ | |
8417 | PROP (TOOL_BAR_ITEM_RTL_IMAGE) = value; | |
7ee32cda GM |
8418 | } |
8419 | ||
8420 | /* If got a filter apply it on binding. */ | |
8421 | if (!NILP (filter)) | |
9ea173e8 | 8422 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
8423 | = menu_item_eval_property (list2 (filter, |
8424 | list2 (Qquote, | |
9ea173e8 | 8425 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
8426 | |
8427 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 8428 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
8429 | return 0; |
8430 | ||
8431 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
8432 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
8433 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
8434 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 8435 | |
c60ee5e7 | 8436 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
8437 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
8438 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
8439 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
8440 | |
8441 | return 1; | |
c60ee5e7 | 8442 | |
7ee32cda GM |
8443 | #undef PROP |
8444 | } | |
8445 | ||
8446 | ||
9ea173e8 GM |
8447 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
8448 | that can be reused. */ | |
7ee32cda GM |
8449 | |
8450 | static void | |
9ea173e8 | 8451 | init_tool_bar_items (reuse) |
7ee32cda GM |
8452 | Lisp_Object reuse; |
8453 | { | |
8454 | if (VECTORP (reuse)) | |
9ea173e8 | 8455 | tool_bar_items_vector = reuse; |
7ee32cda | 8456 | else |
9ea173e8 GM |
8457 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
8458 | ntool_bar_items = 0; | |
7ee32cda GM |
8459 | } |
8460 | ||
8461 | ||
9ea173e8 GM |
8462 | /* Append parsed tool bar item properties from |
8463 | tool_bar_item_properties */ | |
7ee32cda GM |
8464 | |
8465 | static void | |
9ea173e8 | 8466 | append_tool_bar_item () |
7ee32cda GM |
8467 | { |
8468 | Lisp_Object *to, *from; | |
c60ee5e7 | 8469 | |
9ea173e8 GM |
8470 | /* Enlarge tool_bar_items_vector if necessary. */ |
8471 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
8472 | >= XVECTOR (tool_bar_items_vector)->size) | |
219ccf1b RS |
8473 | tool_bar_items_vector |
8474 | = larger_vector (tool_bar_items_vector, | |
8475 | 2 * XVECTOR (tool_bar_items_vector)->size, Qnil); | |
7ee32cda | 8476 | |
9ea173e8 GM |
8477 | /* Append entries from tool_bar_item_properties to the end of |
8478 | tool_bar_items_vector. */ | |
8479 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
8480 | from = XVECTOR (tool_bar_item_properties)->contents; | |
8481 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
8482 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
8483 | } |
8484 | ||
8485 | ||
8486 | ||
8487 | ||
e8886a1d | 8488 | \f |
dcc408a0 RS |
8489 | /* Read a character using menus based on maps in the array MAPS. |
8490 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
8491 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
8492 | |
8493 | PREV_EVENT is the previous input event, or nil if we are reading | |
8494 | the first event of a key sequence. | |
8495 | ||
83d68044 | 8496 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 8497 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 8498 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
8499 | |
8500 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 8501 | and the strings associated with various map elements. |
8150596a RS |
8502 | |
8503 | This can be done with X menus or with menus put in the minibuf. | |
8504 | These are done in different ways, depending on how the input will be read. | |
8505 | Menus using X are done after auto-saving in read-char, getting the input | |
8506 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
8507 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 8508 | |
7617111f | 8509 | static Lisp_Object |
8150596a | 8510 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
8511 | int nmaps; |
8512 | Lisp_Object *maps; | |
8513 | Lisp_Object prev_event; | |
8514 | int *used_mouse_menu; | |
284f4730 | 8515 | { |
7d6de002 | 8516 | int mapno; |
14e40288 | 8517 | register Lisp_Object name = Qnil; |
7d6de002 | 8518 | |
6569cc8d JB |
8519 | if (used_mouse_menu) |
8520 | *used_mouse_menu = 0; | |
284f4730 JB |
8521 | |
8522 | /* Use local over global Menu maps */ | |
8523 | ||
7d6de002 RS |
8524 | if (! menu_prompting) |
8525 | return Qnil; | |
8526 | ||
03361bcc RS |
8527 | /* Optionally disregard all but the global map. */ |
8528 | if (inhibit_local_menu_bar_menus) | |
8529 | { | |
8530 | maps += (nmaps - 1); | |
8531 | nmaps = 1; | |
8532 | } | |
8533 | ||
7d6de002 RS |
8534 | /* Get the menu name from the first map that has one (a prompt string). */ |
8535 | for (mapno = 0; mapno < nmaps; mapno++) | |
8536 | { | |
bdb7aa47 | 8537 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
8538 | if (!NILP (name)) |
8539 | break; | |
8540 | } | |
284f4730 | 8541 | |
7d6de002 | 8542 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 8543 | if (!STRINGP (name)) |
7d6de002 RS |
8544 | return Qnil; |
8545 | ||
1f5b1641 | 8546 | #ifdef HAVE_MENUS |
7d6de002 RS |
8547 | /* If we got to this point via a mouse click, |
8548 | use a real menu for mouse selection. */ | |
5a8d99e0 | 8549 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
8550 | && !EQ (XCAR (prev_event), Qmenu_bar) |
8551 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
8552 | { |
8553 | /* Display the menu and get the selection. */ | |
8554 | Lisp_Object *realmaps | |
8555 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
8556 | Lisp_Object value; | |
8557 | int nmaps1 = 0; | |
8558 | ||
8559 | /* Use the maps that are not nil. */ | |
8560 | for (mapno = 0; mapno < nmaps; mapno++) | |
8561 | if (!NILP (maps[mapno])) | |
8562 | realmaps[nmaps1++] = maps[mapno]; | |
8563 | ||
8564 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
8565 | if (CONSP (value)) |
8566 | { | |
68f297c5 RS |
8567 | Lisp_Object tem; |
8568 | ||
7539e11f | 8569 | record_menu_key (XCAR (value)); |
8eb4d8ef | 8570 | |
68f297c5 RS |
8571 | /* If we got multiple events, unread all but |
8572 | the first. | |
8573 | There is no way to prevent those unread events | |
8574 | from showing up later in last_nonmenu_event. | |
8575 | So turn symbol and integer events into lists, | |
8576 | to indicate that they came from a mouse menu, | |
8577 | so that when present in last_nonmenu_event | |
8578 | they won't confuse things. */ | |
9beb8baa | 8579 | for (tem = XCDR (value); CONSP (tem); tem = XCDR (tem)) |
8eb4d8ef | 8580 | { |
7539e11f KR |
8581 | record_menu_key (XCAR (tem)); |
8582 | if (SYMBOLP (XCAR (tem)) | |
8583 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8584 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8585 | } |
68f297c5 | 8586 | |
663258f2 JB |
8587 | /* If we got more than one event, put all but the first |
8588 | onto this list to be read later. | |
8589 | Return just the first event now. */ | |
24597608 | 8590 | Vunread_command_events |
7539e11f KR |
8591 | = nconc2 (XCDR (value), Vunread_command_events); |
8592 | value = XCAR (value); | |
663258f2 | 8593 | } |
1c90c381 | 8594 | else if (NILP (value)) |
dcc408a0 | 8595 | value = Qt; |
6569cc8d JB |
8596 | if (used_mouse_menu) |
8597 | *used_mouse_menu = 1; | |
7d6de002 RS |
8598 | return value; |
8599 | } | |
1f5b1641 | 8600 | #endif /* HAVE_MENUS */ |
8150596a RS |
8601 | return Qnil ; |
8602 | } | |
8603 | ||
af2b7cc9 KS |
8604 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8605 | We make this bigger when necessary, and never free it. */ | |
8606 | static char *read_char_minibuf_menu_text; | |
8607 | /* Size of that buffer. */ | |
8608 | static int read_char_minibuf_menu_width; | |
8609 | ||
8150596a | 8610 | static Lisp_Object |
24597608 | 8611 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8612 | int commandflag ; |
8613 | int nmaps; | |
8614 | Lisp_Object *maps; | |
8615 | { | |
8616 | int mapno; | |
8617 | register Lisp_Object name; | |
af2b7cc9 | 8618 | int nlength; |
14e40288 | 8619 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8620 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8621 | int idx = -1; |
af2b7cc9 | 8622 | int nobindings = 1; |
8150596a | 8623 | Lisp_Object rest, vector; |
af2b7cc9 | 8624 | char *menu; |
8150596a | 8625 | |
8c907a56 | 8626 | vector = Qnil; |
7189cad8 | 8627 | name = Qnil; |
8c907a56 | 8628 | |
8150596a RS |
8629 | if (! menu_prompting) |
8630 | return Qnil; | |
8631 | ||
f6bb4883 CY |
8632 | /* Get the menu name from the first map that has one (a prompt string). */ |
8633 | for (mapno = 0; mapno < nmaps; mapno++) | |
8634 | { | |
8635 | name = Fkeymap_prompt (maps[mapno]); | |
8636 | if (!NILP (name)) | |
8637 | break; | |
8638 | } | |
8639 | ||
8640 | /* If we don't have any menus, just read a character normally. */ | |
8641 | if (!STRINGP (name)) | |
8642 | return Qnil; | |
8643 | ||
af2b7cc9 | 8644 | /* Make sure we have a big enough buffer for the menu text. */ |
f6bb4883 | 8645 | width = max (width, SBYTES (name)); |
af2b7cc9 KS |
8646 | if (read_char_minibuf_menu_text == 0) |
8647 | { | |
8648 | read_char_minibuf_menu_width = width + 4; | |
8649 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8650 | } | |
8651 | else if (width + 4 > read_char_minibuf_menu_width) | |
8652 | { | |
8653 | read_char_minibuf_menu_width = width + 4; | |
8654 | read_char_minibuf_menu_text | |
8655 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8656 | } | |
8657 | menu = read_char_minibuf_menu_text; | |
8658 | ||
af2b7cc9 | 8659 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8660 | strcpy (menu, SDATA (name)); |
8661 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8662 | menu[nlength++] = ':'; |
8663 | menu[nlength++] = ' '; | |
8664 | menu[nlength] = 0; | |
8665 | ||
7d6de002 RS |
8666 | /* Start prompting at start of first map. */ |
8667 | mapno = 0; | |
8668 | rest = maps[mapno]; | |
284f4730 | 8669 | |
af2b7cc9 KS |
8670 | /* Present the documented bindings, a line at a time. */ |
8671 | while (1) | |
284f4730 | 8672 | { |
af2b7cc9 KS |
8673 | int notfirst = 0; |
8674 | int i = nlength; | |
8675 | Lisp_Object obj; | |
8676 | int ch; | |
8677 | Lisp_Object orig_defn_macro; | |
284f4730 | 8678 | |
af2b7cc9 KS |
8679 | /* Loop over elements of map. */ |
8680 | while (i < width) | |
284f4730 | 8681 | { |
af2b7cc9 | 8682 | Lisp_Object elt; |
284f4730 | 8683 | |
af2b7cc9 KS |
8684 | /* If reached end of map, start at beginning of next map. */ |
8685 | if (NILP (rest)) | |
8686 | { | |
8687 | mapno++; | |
8688 | /* At end of last map, wrap around to first map if just starting, | |
8689 | or end this line if already have something on it. */ | |
8690 | if (mapno == nmaps) | |
8691 | { | |
8692 | mapno = 0; | |
8693 | if (notfirst || nobindings) break; | |
8694 | } | |
8695 | rest = maps[mapno]; | |
8696 | } | |
7d6de002 | 8697 | |
af2b7cc9 KS |
8698 | /* Look at the next element of the map. */ |
8699 | if (idx >= 0) | |
8700 | elt = XVECTOR (vector)->contents[idx]; | |
8701 | else | |
8702 | elt = Fcar_safe (rest); | |
7d6de002 | 8703 | |
af2b7cc9 | 8704 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8705 | { |
af2b7cc9 KS |
8706 | /* If we found a dense table in the keymap, |
8707 | advanced past it, but start scanning its contents. */ | |
8708 | rest = Fcdr_safe (rest); | |
8709 | vector = elt; | |
8710 | idx = 0; | |
284f4730 | 8711 | } |
7d6de002 RS |
8712 | else |
8713 | { | |
af2b7cc9 KS |
8714 | /* An ordinary element. */ |
8715 | Lisp_Object event, tem; | |
7d6de002 | 8716 | |
af2b7cc9 KS |
8717 | if (idx < 0) |
8718 | { | |
8719 | event = Fcar_safe (elt); /* alist */ | |
8720 | elt = Fcdr_safe (elt); | |
8721 | } | |
8722 | else | |
8723 | { | |
8724 | XSETINT (event, idx); /* vector */ | |
8725 | } | |
284f4730 | 8726 | |
af2b7cc9 KS |
8727 | /* Ignore the element if it has no prompt string. */ |
8728 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8729 | { | |
8730 | /* 1 if the char to type matches the string. */ | |
8731 | int char_matches; | |
8732 | Lisp_Object upcased_event, downcased_event; | |
8733 | Lisp_Object desc = Qnil; | |
8734 | Lisp_Object s | |
8735 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8736 | ||
8737 | upcased_event = Fupcase (event); | |
8738 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8739 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8740 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8741 | if (! char_matches) |
8742 | desc = Fsingle_key_description (event, Qnil); | |
8743 | ||
8744 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8745 | the prefix is what the user has already typed. */ | |
8746 | tem | |
8747 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8748 | if (!NILP (tem)) | |
8749 | /* Insert equivalent keybinding. */ | |
8750 | s = concat2 (s, tem); | |
8751 | #endif | |
8752 | tem | |
8753 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8754 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8755 | { | |
8756 | /* Insert button prefix. */ | |
8757 | Lisp_Object selected | |
8758 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8759 | if (EQ (tem, QCradio)) | |
8760 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8761 | else | |
8762 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8763 | s = concat2 (tem, s); | |
8764 | } | |
c60ee5e7 | 8765 | |
af2b7cc9 KS |
8766 | |
8767 | /* If we have room for the prompt string, add it to this line. | |
8768 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8769 | if ((SCHARS (s) + i + 2 |
8770 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8771 | < width |
8772 | || !notfirst) | |
8773 | { | |
8774 | int thiswidth; | |
8775 | ||
8776 | /* Punctuate between strings. */ | |
8777 | if (notfirst) | |
8778 | { | |
8779 | strcpy (menu + i, ", "); | |
8780 | i += 2; | |
8781 | } | |
8782 | notfirst = 1; | |
8783 | nobindings = 0 ; | |
8784 | ||
8785 | /* If the char to type doesn't match the string's | |
8786 | first char, explicitly show what char to type. */ | |
8787 | if (! char_matches) | |
8788 | { | |
8789 | /* Add as much of string as fits. */ | |
d5db4077 | 8790 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8791 | if (thiswidth + i > width) |
8792 | thiswidth = width - i; | |
d5db4077 | 8793 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8794 | i += thiswidth; |
8795 | strcpy (menu + i, " = "); | |
8796 | i += 3; | |
8797 | } | |
8798 | ||
8799 | /* Add as much of string as fits. */ | |
d5db4077 | 8800 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8801 | if (thiswidth + i > width) |
8802 | thiswidth = width - i; | |
d5db4077 | 8803 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8804 | i += thiswidth; |
8805 | menu[i] = 0; | |
8806 | } | |
8807 | else | |
8808 | { | |
8809 | /* If this element does not fit, end the line now, | |
8810 | and save the element for the next line. */ | |
8811 | strcpy (menu + i, "..."); | |
8812 | break; | |
8813 | } | |
8814 | } | |
8815 | ||
8816 | /* Move past this element. */ | |
8817 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8818 | /* Handle reaching end of dense table. */ | |
8819 | idx = -1; | |
8820 | if (idx >= 0) | |
8821 | idx++; | |
8822 | else | |
8823 | rest = Fcdr_safe (rest); | |
8824 | } | |
325309f5 | 8825 | } |
8150596a | 8826 | |
af2b7cc9 | 8827 | /* Prompt with that and read response. */ |
c60ee5e7 | 8828 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8829 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8830 | |
af2b7cc9 KS |
8831 | /* Make believe its not a keyboard macro in case the help char |
8832 | is pressed. Help characters are not recorded because menu prompting | |
8833 | is not used on replay. | |
8834 | */ | |
8835 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8836 | current_kboard->defining_kbd_macro = Qnil; | |
8837 | do | |
179f689c | 8838 | obj = read_char (commandflag, 0, 0, Qt, 0, NULL); |
af2b7cc9 KS |
8839 | while (BUFFERP (obj)); |
8840 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8841 | |
af2b7cc9 KS |
8842 | if (!INTEGERP (obj)) |
8843 | return obj; | |
9688ff53 KL |
8844 | else if (XINT (obj) == -2) |
8845 | return obj; | |
af2b7cc9 KS |
8846 | else |
8847 | ch = XINT (obj); | |
8848 | ||
8849 | if (! EQ (obj, menu_prompt_more_char) | |
8850 | && (!INTEGERP (menu_prompt_more_char) | |
8851 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8852 | { | |
8853 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8854 | store_kbd_macro_char (obj); | |
8855 | return obj; | |
8856 | } | |
8857 | /* Help char - go round again */ | |
8858 | } | |
284f4730 | 8859 | } |
284f4730 JB |
8860 | \f |
8861 | /* Reading key sequences. */ | |
8862 | ||
8863 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8864 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8865 | keymap, or nil otherwise. Return the index of the first keymap in | |
8866 | which KEY has any binding, or NMAPS if no map has a binding. | |
8867 | ||
8868 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8869 | followed by the corresponding non-meta character. Keymaps in | |
8870 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8871 | NEXT. | |
8872 | ||
88cb0656 JB |
8873 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8874 | unmodified. | |
8875 | ||
569871d2 | 8876 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8877 | |
8878 | static int | |
4e50f26a | 8879 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8880 | Lisp_Object key; |
8881 | Lisp_Object *current, *defs, *next; | |
8882 | int nmaps; | |
8883 | { | |
8884 | int i, first_binding; | |
8885 | ||
284f4730 JB |
8886 | first_binding = nmaps; |
8887 | for (i = nmaps - 1; i >= 0; i--) | |
8888 | { | |
8889 | if (! NILP (current[i])) | |
8890 | { | |
fe5b94c5 | 8891 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8892 | if (! NILP (defs[i])) |
8893 | first_binding = i; | |
8894 | } | |
8895 | else | |
8896 | defs[i] = Qnil; | |
8897 | } | |
8898 | ||
284f4730 | 8899 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8900 | if (first_binding < nmaps) |
8901 | for (i = 0; i < nmaps; i++) | |
02067692 | 8902 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8903 | |
8904 | return first_binding; | |
8905 | } | |
8906 | ||
a7f26f28 SM |
8907 | /* Structure used to keep track of partial application of key remapping |
8908 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8909 | typedef struct keyremap | |
8910 | { | |
c2028ac6 RS |
8911 | /* This is the map originally specified for this use. */ |
8912 | Lisp_Object parent; | |
8913 | /* This is a submap reached by looking up, in PARENT, | |
8914 | the events from START to END. */ | |
8915 | Lisp_Object map; | |
8916 | /* Positions [START, END) in the key sequence buffer | |
8917 | are the key that we have scanned so far. | |
8918 | Those events are the ones that we will replace | |
8919 | if PAREHT maps them into a key sequence. */ | |
a7f26f28 SM |
8920 | int start, end; |
8921 | } keyremap; | |
8922 | ||
fe5b94c5 SM |
8923 | /* Lookup KEY in MAP. |
8924 | MAP is a keymap mapping keys to key vectors or functions. | |
8925 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8926 | the function is called with PROMPT as parameter and its return | |
8927 | value is used as the return value of this function (after checking | |
8928 | that it is indeed a vector). */ | |
8929 | ||
8930 | static Lisp_Object | |
8931 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8932 | Lisp_Object map, key, prompt; | |
8933 | int do_funcall; | |
8934 | { | |
8935 | Lisp_Object next; | |
6b61353c | 8936 | |
fe5b94c5 SM |
8937 | next = access_keymap (map, key, 1, 0, 1); |
8938 | ||
8939 | /* Handle symbol with autoload definition. */ | |
8940 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8941 | && CONSP (XSYMBOL (next)->function) | |
8942 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8943 | do_autoload (XSYMBOL (next)->function, next); | |
8944 | ||
8945 | /* Handle a symbol whose function definition is a keymap | |
8946 | or an array. */ | |
8947 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
592c0e80 | 8948 | && (ARRAYP (XSYMBOL (next)->function) |
fe5b94c5 SM |
8949 | || KEYMAPP (XSYMBOL (next)->function))) |
8950 | next = XSYMBOL (next)->function; | |
6b61353c | 8951 | |
fe5b94c5 SM |
8952 | /* If the keymap gives a function, not an |
8953 | array, then call the function with one arg and use | |
8954 | its value instead. */ | |
8955 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8956 | { | |
8957 | Lisp_Object tem; | |
8958 | tem = next; | |
8959 | ||
8960 | next = call1 (next, prompt); | |
8961 | /* If the function returned something invalid, | |
8962 | barf--don't ignore it. | |
8963 | (To ignore it safely, we would need to gcpro a bunch of | |
8964 | other variables.) */ | |
8965 | if (! (VECTORP (next) || STRINGP (next))) | |
8966 | error ("Function %s returns invalid key sequence", tem); | |
8967 | } | |
8968 | return next; | |
8969 | } | |
8970 | ||
8971 | /* Do one step of the key remapping used for function-key-map and | |
8972 | key-translation-map: | |
8973 | KEYBUF is the buffer holding the input events. | |
8974 | BUFSIZE is its maximum size. | |
8975 | FKEY is a pointer to the keyremap structure to use. | |
8976 | INPUT is the index of the last element in KEYBUF. | |
8977 | DOIT if non-zero says that the remapping can actually take place. | |
8978 | DIFF is used to return the number of keys added/removed by the remapping. | |
8979 | PARENT is the root of the keymap. | |
8980 | PROMPT is the prompt to use if the remapping happens through a function. | |
8981 | The return value is non-zero if the remapping actually took place. */ | |
8982 | ||
8983 | static int | |
24d80a06 SM |
8984 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
8985 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
8986 | keyremap *fkey; |
8987 | int input, doit, *diff, bufsize; | |
8988 | { | |
8989 | Lisp_Object next, key; | |
8990 | ||
8991 | key = keybuf[fkey->end++]; | |
c2028ac6 RS |
8992 | |
8993 | if (KEYMAPP (fkey->parent)) | |
8994 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8995 | else | |
8996 | next = Qnil; | |
fe5b94c5 SM |
8997 | |
8998 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8999 | map and we're in a position to do the key remapping, replace it with | |
9000 | the binding and restart with fkey->start at the end. */ | |
9001 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
9002 | { | |
9003 | int len = XFASTINT (Flength (next)); | |
9004 | int i; | |
9005 | ||
9006 | *diff = len - (fkey->end - fkey->start); | |
9007 | ||
9008 | if (input + *diff >= bufsize) | |
9009 | error ("Key sequence too long"); | |
9010 | ||
9011 | /* Shift the keys that follow fkey->end. */ | |
9012 | if (*diff < 0) | |
9013 | for (i = fkey->end; i < input; i++) | |
9014 | keybuf[i + *diff] = keybuf[i]; | |
9015 | else if (*diff > 0) | |
9016 | for (i = input - 1; i >= fkey->end; i--) | |
9017 | keybuf[i + *diff] = keybuf[i]; | |
9018 | /* Overwrite the old keys with the new ones. */ | |
9019 | for (i = 0; i < len; i++) | |
9020 | keybuf[fkey->start + i] | |
9021 | = Faref (next, make_number (i)); | |
9022 | ||
9023 | fkey->start = fkey->end += *diff; | |
24d80a06 | 9024 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9025 | |
9026 | return 1; | |
9027 | } | |
9028 | ||
9029 | fkey->map = get_keymap (next, 0, 1); | |
9030 | ||
9031 | /* If we no longer have a bound suffix, try a new position for | |
9032 | fkey->start. */ | |
9033 | if (!CONSP (fkey->map)) | |
9034 | { | |
9035 | fkey->end = ++fkey->start; | |
24d80a06 | 9036 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9037 | } |
9038 | return 0; | |
9039 | } | |
a7f26f28 | 9040 | |
df0f2ba1 | 9041 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
9042 | storing it in KEYBUF, a buffer of size BUFSIZE. |
9043 | Prompt with PROMPT. | |
284f4730 | 9044 | Return the length of the key sequence stored. |
dcc408a0 | 9045 | Return -1 if the user rejected a command menu. |
284f4730 | 9046 | |
f4255cd1 JB |
9047 | Echo starting immediately unless `prompt' is 0. |
9048 | ||
9049 | Where a key sequence ends depends on the currently active keymaps. | |
9050 | These include any minor mode keymaps active in the current buffer, | |
9051 | the current buffer's local map, and the global map. | |
9052 | ||
9053 | If a key sequence has no other bindings, we check Vfunction_key_map | |
9054 | to see if some trailing subsequence might be the beginning of a | |
9055 | function key's sequence. If so, we try to read the whole function | |
9056 | key, and substitute its symbolic name into the key sequence. | |
9057 | ||
fbcd35bd JB |
9058 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
9059 | `double-' events into similar click events, if that would make them | |
9060 | bound. We try to turn `triple-' events first into `double-' events, | |
9061 | then into clicks. | |
f4255cd1 JB |
9062 | |
9063 | If we get a mouse click in a mode line, vertical divider, or other | |
9064 | non-text area, we treat the click as if it were prefixed by the | |
9065 | symbol denoting that area - `mode-line', `vertical-line', or | |
9066 | whatever. | |
9067 | ||
9068 | If the sequence starts with a mouse click, we read the key sequence | |
9069 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 9070 | |
f4255cd1 JB |
9071 | If the user switches frames in the midst of a key sequence, we put |
9072 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
9073 | read_char will return it. |
9074 | ||
9075 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
9076 | from the selected window's buffer. */ | |
48e416d4 | 9077 | |
284f4730 | 9078 | static int |
ce98e608 | 9079 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 9080 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
9081 | Lisp_Object *keybuf; |
9082 | int bufsize; | |
84d91fda | 9083 | Lisp_Object prompt; |
309b0fc8 | 9084 | int dont_downcase_last; |
ce98e608 | 9085 | int can_return_switch_frame; |
f571ae0d | 9086 | int fix_current_buffer; |
284f4730 | 9087 | { |
db14cfc5 | 9088 | volatile Lisp_Object from_string; |
aed13378 | 9089 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 9090 | |
284f4730 | 9091 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 9092 | volatile int t; |
284f4730 | 9093 | |
284f4730 JB |
9094 | /* The length of the echo buffer when we started reading, and |
9095 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
9096 | volatile int echo_start; |
9097 | volatile int keys_start; | |
284f4730 JB |
9098 | |
9099 | /* The number of keymaps we're scanning right now, and the number of | |
9100 | keymaps we have allocated space for. */ | |
8c907a56 GM |
9101 | volatile int nmaps; |
9102 | volatile int nmaps_allocated = 0; | |
284f4730 | 9103 | |
284f4730 JB |
9104 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
9105 | the current keymaps. */ | |
8c907a56 | 9106 | Lisp_Object *volatile defs = NULL; |
284f4730 | 9107 | |
f4255cd1 JB |
9108 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
9109 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 9110 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 9111 | |
e0dff5f6 | 9112 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 9113 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 9114 | |
30690496 DL |
9115 | /* The map from the `keymap' property to start out with at start of |
9116 | key sequence. */ | |
8c907a56 | 9117 | volatile Lisp_Object orig_keymap; |
30690496 | 9118 | |
e0dff5f6 RS |
9119 | /* 1 if we have already considered switching to the local-map property |
9120 | of the place where a mouse click occurred. */ | |
8c907a56 | 9121 | volatile int localized_local_map = 0; |
e0dff5f6 | 9122 | |
9de5eb68 | 9123 | /* The index in submaps[] of the first keymap that has a binding for |
f4255cd1 | 9124 | this key sequence. In other words, the lowest i such that |
9de5eb68 | 9125 | submaps[i] is non-nil. */ |
8c907a56 | 9126 | volatile int first_binding; |
7189cad8 | 9127 | /* Index of the first key that has no binding. |
a7f26f28 | 9128 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 9129 | volatile int first_unbound; |
284f4730 | 9130 | |
f4255cd1 | 9131 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
9132 | input key. |
9133 | ||
9134 | We use this to recover after recognizing a function key. Once we | |
9135 | realize that a suffix of the current key sequence is actually a | |
9136 | function key's escape sequence, we replace the suffix with the | |
9137 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
9138 | contains a new and different key sequence, so the echo area, |
9139 | this_command_keys, and the submaps and defs arrays are wrong. In | |
9140 | this situation, we set mock_input to t, set t to 0, and jump to | |
9141 | restart_sequence; the loop will read keys from keybuf up until | |
9142 | mock_input, thus rebuilding the state; and then it will resume | |
9143 | reading characters from the keyboard. */ | |
8c907a56 | 9144 | volatile int mock_input = 0; |
284f4730 | 9145 | |
253598e4 | 9146 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
9147 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
9148 | and fkey.map is its binding. | |
253598e4 | 9149 | |
f4255cd1 JB |
9150 | These might be > t, indicating that all function key scanning |
9151 | should hold off until t reaches them. We do this when we've just | |
9152 | recognized a function key, to avoid searching for the function | |
9153 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 9154 | volatile keyremap fkey; |
284f4730 | 9155 | |
4f4a84ec SM |
9156 | /* Likewise, for key_translation_map and input-decode-map. */ |
9157 | volatile keyremap keytran, indec; | |
a612e298 | 9158 | |
025ae953 CY |
9159 | /* Non-zero if we are trying to map a key by changing an upper-case |
9160 | letter to lower case, or a shifted function key to an unshifted | |
9161 | one. */ | |
9162 | volatile int shift_translated = 0; | |
9163 | ||
fe5b94c5 SM |
9164 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
9165 | a key sequence, we put it off for later. | |
9166 | While we're reading, we keep the event here. */ | |
8c907a56 | 9167 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 9168 | |
51763820 BF |
9169 | /* See the comment below... */ |
9170 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 9171 | Lisp_Object first_event; |
51763820 | 9172 | #endif |
4efda7dd | 9173 | |
8c907a56 GM |
9174 | volatile Lisp_Object original_uppercase; |
9175 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 9176 | |
bc536d84 | 9177 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 9178 | int dummyflag = 0; |
bc536d84 | 9179 | |
3b9189f8 RS |
9180 | struct buffer *starting_buffer; |
9181 | ||
2dc00208 GM |
9182 | /* List of events for which a fake prefix key has been generated. */ |
9183 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
9184 | ||
03cee6ae | 9185 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 9186 | int junk; |
03cee6ae | 9187 | #endif |
4efda7dd | 9188 | |
2dc00208 GM |
9189 | struct gcpro gcpro1; |
9190 | ||
9191 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
9192 | raw_keybuf_count = 0; |
9193 | ||
4efda7dd RS |
9194 | last_nonmenu_event = Qnil; |
9195 | ||
9196 | delayed_switch_frame = Qnil; | |
033b73e2 | 9197 | |
284f4730 JB |
9198 | if (INTERACTIVE) |
9199 | { | |
84d91fda | 9200 | if (!NILP (prompt)) |
a4ef85ee | 9201 | echo_prompt (prompt); |
f2647d04 DL |
9202 | else if (cursor_in_echo_area |
9203 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
9204 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
9205 | /* This doesn't put in a dash if the echo buffer is empty, so |
9206 | you don't always see a dash hanging out in the minibuffer. */ | |
9207 | echo_dash (); | |
284f4730 JB |
9208 | } |
9209 | ||
f4255cd1 JB |
9210 | /* Record the initial state of the echo area and this_command_keys; |
9211 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 9212 | if (INTERACTIVE) |
df0f2ba1 | 9213 | echo_start = echo_length (); |
f4255cd1 | 9214 | keys_start = this_command_key_count; |
6321824f | 9215 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 9216 | |
51763820 BF |
9217 | #if defined (GOBBLE_FIRST_EVENT) |
9218 | /* This doesn't quite work, because some of the things that read_char | |
9219 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 9220 | this work right. */ |
51763820 | 9221 | |
4efda7dd RS |
9222 | /* Read the first char of the sequence specially, before setting |
9223 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 9224 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
179f689c | 9225 | &junk, NULL); |
51763820 | 9226 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 9227 | |
24a40fbb GM |
9228 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9229 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 9230 | from_string = Qnil; |
e0dff5f6 | 9231 | |
f1ba6ccd CY |
9232 | /* We jump here when we need to reinitialize fkey and keytran; this |
9233 | happens if we switch keyboards between rescans. */ | |
9234 | replay_entire_sequence: | |
9235 | ||
4f4a84ec | 9236 | indec.map = indec.parent = current_kboard->Vinput_decode_map; |
d6805803 | 9237 | fkey.map = fkey.parent = current_kboard->Vlocal_function_key_map; |
4f4a84ec SM |
9238 | keytran.map = keytran.parent = Vkey_translation_map; |
9239 | indec.start = indec.end = 0; | |
3f87f67e KL |
9240 | fkey.start = fkey.end = 0; |
9241 | keytran.start = keytran.end = 0; | |
d6805803 | 9242 | |
3278f20e SM |
9243 | /* We jump here when the key sequence has been thoroughly changed, and |
9244 | we need to rescan it starting from the beginning. When we jump here, | |
9245 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
9246 | replay_sequence: | |
9247 | ||
3b9189f8 | 9248 | starting_buffer = current_buffer; |
7189cad8 | 9249 | first_unbound = bufsize + 1; |
3b9189f8 | 9250 | |
f4255cd1 | 9251 | /* Build our list of keymaps. |
07d2b8de JB |
9252 | If we recognize a function key and replace its escape sequence in |
9253 | keybuf with its symbol, or if the sequence starts with a mouse | |
9254 | click and we need to switch buffers, we jump back here to rebuild | |
9255 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 9256 | nmaps = 0; |
284f4730 | 9257 | |
4c0240d2 | 9258 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
4cbedc16 | 9259 | { |
4c0240d2 | 9260 | if (2 > nmaps_allocated) |
4cbedc16 | 9261 | { |
4c0240d2 RS |
9262 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); |
9263 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9264 | nmaps_allocated = 2; | |
4cbedc16 | 9265 | } |
07024c43 | 9266 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; |
4c0240d2 RS |
9267 | } |
9268 | else if (!NILP (Voverriding_local_map)) | |
9269 | { | |
9270 | if (2 > nmaps_allocated) | |
9271 | { | |
9272 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); | |
9273 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9274 | nmaps_allocated = 2; | |
9275 | } | |
07024c43 | 9276 | submaps[nmaps++] = Voverriding_local_map; |
4cbedc16 RS |
9277 | } |
9278 | else | |
9279 | { | |
4cbedc16 RS |
9280 | int nminor; |
9281 | int total; | |
9282 | Lisp_Object *maps; | |
9283 | ||
9284 | nminor = current_minor_maps (0, &maps); | |
9285 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
9286 | ||
9287 | if (total > nmaps_allocated) | |
9288 | { | |
9289 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
9290 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
9291 | nmaps_allocated = total; | |
9292 | } | |
9293 | ||
9294 | if (!NILP (orig_keymap)) | |
9295 | submaps[nmaps++] = orig_keymap; | |
9296 | ||
7d1c4866 | 9297 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
9298 | nminor * sizeof (submaps[0])); |
9299 | ||
9300 | nmaps += nminor; | |
9301 | ||
9302 | submaps[nmaps++] = orig_local_map; | |
9303 | } | |
9304 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
9305 | |
9306 | /* Find an accurate initial value for first_binding. */ | |
9307 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 9308 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
9309 | break; |
9310 | ||
3b9189f8 | 9311 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
9312 | t = 0; |
9313 | ||
9314 | /* These are no-ops the first time through, but if we restart, they | |
9315 | revert the echo area and this_command_keys to their original state. */ | |
9316 | this_command_key_count = keys_start; | |
df0f2ba1 | 9317 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
9318 | echo_truncate (echo_start); |
9319 | ||
cca310da JB |
9320 | /* If the best binding for the current key sequence is a keymap, or |
9321 | we may be looking at a function key's escape sequence, keep on | |
9322 | reading. */ | |
a7f26f28 SM |
9323 | while (first_binding < nmaps |
9324 | /* Keep reading as long as there's a prefix binding. */ | |
9325 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
9326 | /* Don't return in the middle of a possible function key sequence, |
9327 | if the only bindings we found were via case conversion. | |
9328 | Thus, if ESC O a has a function-key-map translation | |
9329 | and ESC o has a binding, don't return after ESC O, | |
9330 | so that we can translate ESC O plus the next character. */ | |
4f4a84ec | 9331 | : (/* indec.start < t || fkey.start < t || */ keytran.start < t)) |
284f4730 JB |
9332 | { |
9333 | Lisp_Object key; | |
7d6de002 | 9334 | int used_mouse_menu = 0; |
284f4730 | 9335 | |
7b4aedb9 JB |
9336 | /* Where the last real key started. If we need to throw away a |
9337 | key that has expanded into more than one element of keybuf | |
9338 | (say, a mouse click on the mode line which is being treated | |
9339 | as [mode-line (mouse-...)], then we backtrack to this point | |
9340 | of keybuf. */ | |
8c907a56 | 9341 | volatile int last_real_key_start; |
7b4aedb9 | 9342 | |
0a7f1fc0 JB |
9343 | /* These variables are analogous to echo_start and keys_start; |
9344 | while those allow us to restart the entire key sequence, | |
9345 | echo_local_start and keys_local_start allow us to throw away | |
9346 | just one key. */ | |
8c907a56 | 9347 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 9348 | |
4f4a84ec SM |
9349 | eassert (indec.end == t || (indec.end > t && indec.end <= mock_input)); |
9350 | eassert (indec.start <= indec.end); | |
fe5b94c5 SM |
9351 | eassert (fkey.start <= fkey.end); |
9352 | eassert (keytran.start <= keytran.end); | |
4f4a84ec SM |
9353 | /* key-translation-map is applied *after* function-key-map |
9354 | which is itself applied *after* input-decode-map. */ | |
9355 | eassert (fkey.end <= indec.start); | |
a7f26f28 | 9356 | eassert (keytran.end <= fkey.start); |
7189cad8 | 9357 | |
4f4a84ec SM |
9358 | if (/* first_unbound < indec.start && first_unbound < fkey.start && */ |
9359 | first_unbound < keytran.start) | |
7189cad8 SM |
9360 | { /* The prefix upto first_unbound has no binding and has |
9361 | no translation left to do either, so we know it's unbound. | |
9362 | If we don't stop now, we risk staying here indefinitely | |
9363 | (if the user keeps entering fkey or keytran prefixes | |
9364 | like C-c ESC ESC ESC ESC ...) */ | |
9365 | int i; | |
9366 | for (i = first_unbound + 1; i < t; i++) | |
9367 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
9368 | mock_input = t - first_unbound - 1; | |
4f4a84ec SM |
9369 | indec.end = indec.start -= first_unbound + 1; |
9370 | indec.map = indec.parent; | |
a7f26f28 | 9371 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 9372 | fkey.map = fkey.parent; |
a7f26f28 | 9373 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 9374 | keytran.map = keytran.parent; |
7189cad8 SM |
9375 | goto replay_sequence; |
9376 | } | |
9377 | ||
284f4730 | 9378 | if (t >= bufsize) |
3fe8e9a2 | 9379 | error ("Key sequence too long"); |
284f4730 | 9380 | |
f4255cd1 JB |
9381 | if (INTERACTIVE) |
9382 | echo_local_start = echo_length (); | |
9383 | keys_local_start = this_command_key_count; | |
9384 | local_first_binding = first_binding; | |
df0f2ba1 | 9385 | |
f4255cd1 | 9386 | replay_key: |
0a7f1fc0 | 9387 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
9388 | jumped back up to replay_key; in that case, these restore the |
9389 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 9390 | loop. */ |
40932d1a | 9391 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 9392 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
9393 | this_command_key_count = keys_local_start; |
9394 | first_binding = local_first_binding; | |
9395 | ||
7e85b935 RS |
9396 | /* By default, assume each event is "real". */ |
9397 | last_real_key_start = t; | |
9398 | ||
f4255cd1 | 9399 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
9400 | if (t < mock_input) |
9401 | { | |
9402 | key = keybuf[t]; | |
9403 | add_command_key (key); | |
f2647d04 DL |
9404 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9405 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9406 | echo_char (key); |
284f4730 | 9407 | } |
253598e4 JB |
9408 | |
9409 | /* If not, we should actually read a character. */ | |
284f4730 JB |
9410 | else |
9411 | { | |
beecf6a1 | 9412 | { |
c5fdd383 | 9413 | KBOARD *interrupted_kboard = current_kboard; |
788f89eb | 9414 | struct frame *interrupted_frame = SELECTED_FRAME (); |
9688ff53 KL |
9415 | key = read_char (NILP (prompt), nmaps, |
9416 | (Lisp_Object *) submaps, last_nonmenu_event, | |
251bc578 | 9417 | &used_mouse_menu, NULL); |
9688ff53 | 9418 | if (INTEGERP (key) && XINT (key) == -2) /* wrong_kboard_jmpbuf */ |
beecf6a1 | 9419 | { |
e079ecf4 KL |
9420 | int found = 0; |
9421 | struct kboard *k; | |
b3e6f69c | 9422 | |
e079ecf4 KL |
9423 | for (k = all_kboards; k; k = k->next_kboard) |
9424 | if (k == interrupted_kboard) | |
9425 | found = 1; | |
9426 | ||
9427 | if (!found) | |
9428 | { | |
9429 | /* Don't touch interrupted_kboard when it's been | |
9430 | deleted. */ | |
9431 | delayed_switch_frame = Qnil; | |
f1ba6ccd | 9432 | goto replay_entire_sequence; |
e079ecf4 | 9433 | } |
b3e6f69c | 9434 | |
5798cf15 KH |
9435 | if (!NILP (delayed_switch_frame)) |
9436 | { | |
c5fdd383 | 9437 | interrupted_kboard->kbd_queue |
5798cf15 | 9438 | = Fcons (delayed_switch_frame, |
c5fdd383 | 9439 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
9440 | delayed_switch_frame = Qnil; |
9441 | } | |
e079ecf4 | 9442 | |
beecf6a1 | 9443 | while (t > 0) |
c5fdd383 KH |
9444 | interrupted_kboard->kbd_queue |
9445 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
9446 | |
9447 | /* If the side queue is non-empty, ensure it begins with a | |
9448 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 9449 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 9450 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
9451 | !(EVENT_HAS_PARAMETERS (key) |
9452 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
9453 | Qswitch_frame)))) | |
df0f2ba1 KH |
9454 | { |
9455 | Lisp_Object frame; | |
9456 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 9457 | interrupted_kboard->kbd_queue |
df0f2ba1 | 9458 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 9459 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 9460 | } |
beecf6a1 | 9461 | mock_input = 0; |
24a40fbb GM |
9462 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9463 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
f1ba6ccd | 9464 | goto replay_entire_sequence; |
beecf6a1 | 9465 | } |
beecf6a1 | 9466 | } |
284f4730 | 9467 | |
dcc408a0 RS |
9468 | /* read_char returns t when it shows a menu and the user rejects it. |
9469 | Just return -1. */ | |
9470 | if (EQ (key, Qt)) | |
7d18f9ae RS |
9471 | { |
9472 | unbind_to (count, Qnil); | |
2dc00208 | 9473 | UNGCPRO; |
7d18f9ae RS |
9474 | return -1; |
9475 | } | |
dcc408a0 | 9476 | |
f4255cd1 | 9477 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
9478 | Emacs 18 handles this by returning immediately with a |
9479 | zero, so that's what we'll do. */ | |
8c18cbfb | 9480 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 9481 | { |
f4255cd1 | 9482 | t = 0; |
bc536d84 RS |
9483 | /* The Microsoft C compiler can't handle the goto that |
9484 | would go here. */ | |
309b0fc8 | 9485 | dummyflag = 1; |
bc536d84 | 9486 | break; |
cd21b839 | 9487 | } |
df0f2ba1 | 9488 | |
3cb81011 KH |
9489 | /* If the current buffer has been changed from under us, the |
9490 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 9491 | if (BUFFERP (key)) |
3cb81011 | 9492 | { |
5c12e63f | 9493 | timer_resume_idle (); |
3021d3a9 | 9494 | |
3cb81011 | 9495 | mock_input = t; |
f571ae0d RS |
9496 | /* Reset the current buffer from the selected window |
9497 | in case something changed the former and not the latter. | |
9498 | This is to be more consistent with the behavior | |
9499 | of the command_loop_1. */ | |
9500 | if (fix_current_buffer) | |
a94a4335 | 9501 | { |
788f89eb | 9502 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
9503 | Fkill_emacs (Qnil); |
9504 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
9505 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
9506 | } | |
f571ae0d | 9507 | |
24a40fbb GM |
9508 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9509 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
9510 | goto replay_sequence; |
9511 | } | |
9512 | ||
3b9189f8 RS |
9513 | /* If we have a quit that was typed in another frame, and |
9514 | quit_throw_to_read_char switched buffers, | |
9515 | replay to get the right keymap. */ | |
f4e05d97 GM |
9516 | if (INTEGERP (key) |
9517 | && XINT (key) == quit_char | |
9518 | && current_buffer != starting_buffer) | |
3b9189f8 | 9519 | { |
7d18f9ae RS |
9520 | GROW_RAW_KEYBUF; |
9521 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
9522 | keybuf[t++] = key; |
9523 | mock_input = t; | |
9524 | Vquit_flag = Qnil; | |
24a40fbb GM |
9525 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9526 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
9527 | goto replay_sequence; |
9528 | } | |
3cb81011 | 9529 | |
284f4730 | 9530 | Vquit_flag = Qnil; |
7d18f9ae RS |
9531 | |
9532 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 9533 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
9534 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
9535 | { | |
9536 | /* If we're at the beginning of a key sequence, and the caller | |
9537 | says it's okay, go ahead and return this event. If we're | |
9538 | in the midst of a key sequence, delay it until the end. */ | |
9539 | if (t > 0 || !can_return_switch_frame) | |
9540 | { | |
9541 | delayed_switch_frame = key; | |
9542 | goto replay_key; | |
9543 | } | |
9544 | } | |
9545 | ||
9546 | GROW_RAW_KEYBUF; | |
4ed4b975 JB |
9547 | ASET (raw_keybuf, raw_keybuf_count, key); |
9548 | raw_keybuf_count++; | |
7e85b935 | 9549 | } |
284f4730 | 9550 | |
df0f2ba1 | 9551 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
9552 | in their CHAR-ADDRESS field. For example, a click on |
9553 | the mode line is prefixed by the symbol `mode-line'. | |
9554 | ||
9555 | Furthermore, key sequences beginning with mouse clicks | |
9556 | are read using the keymaps of the buffer clicked on, not | |
9557 | the current buffer. So we may have to switch the buffer | |
9558 | here. | |
9559 | ||
9560 | When we turn one event into two events, we must make sure | |
9561 | that neither of the two looks like the original--so that, | |
9562 | if we replay the events, they won't be expanded again. | |
9563 | If not for this, such reexpansion could happen either here | |
9564 | or when user programs play with this-command-keys. */ | |
9565 | if (EVENT_HAS_PARAMETERS (key)) | |
9566 | { | |
9b8eb840 | 9567 | Lisp_Object kind; |
6b61353c | 9568 | Lisp_Object string; |
cca310da | 9569 | |
9b8eb840 | 9570 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 9571 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 9572 | { |
9b8eb840 | 9573 | Lisp_Object window, posn; |
f4255cd1 | 9574 | |
4ed4b975 | 9575 | window = POSN_WINDOW (EVENT_START (key)); |
6b61353c | 9576 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 9577 | |
2cf066c3 GM |
9578 | if (CONSP (posn) |
9579 | || (!NILP (fake_prefixed_keys) | |
9580 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 9581 | { |
2cf066c3 GM |
9582 | /* We're looking a second time at an event for which |
9583 | we generated a fake prefix key. Set | |
7e85b935 RS |
9584 | last_real_key_start appropriately. */ |
9585 | if (t > 0) | |
9586 | last_real_key_start = t - 1; | |
cd21b839 | 9587 | } |
7e85b935 RS |
9588 | |
9589 | /* Key sequences beginning with mouse clicks are | |
9590 | read using the keymaps in the buffer clicked on, | |
9591 | not the current buffer. If we're at the | |
9592 | beginning of a key sequence, switch buffers. */ | |
9593 | if (last_real_key_start == 0 | |
8c18cbfb KH |
9594 | && WINDOWP (window) |
9595 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 9596 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 9597 | { |
7d18f9ae | 9598 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
9599 | keybuf[t] = key; |
9600 | mock_input = t + 1; | |
9601 | ||
9602 | /* Arrange to go back to the original buffer once we're | |
9603 | done reading the key sequence. Note that we can't | |
9604 | use save_excursion_{save,restore} here, because they | |
9605 | save point as well as the current buffer; we don't | |
9606 | want to save point, because redisplay may change it, | |
9607 | to accommodate a Fset_window_start or something. We | |
9608 | don't want to do this at the top of the function, | |
9609 | because we may get input from a subprocess which | |
9610 | wants to change the selected window and stuff (say, | |
9611 | emacsclient). */ | |
9612 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
9613 | ||
788f89eb | 9614 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 9615 | Fkill_emacs (Qnil); |
24a40fbb | 9616 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 9617 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
9618 | Qlocal_map); |
9619 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 9620 | goto replay_sequence; |
0a7f1fc0 | 9621 | } |
c60ee5e7 | 9622 | |
e0dff5f6 RS |
9623 | /* For a mouse click, get the local text-property keymap |
9624 | of the place clicked on, rather than point. */ | |
7ee32cda | 9625 | if (last_real_key_start == 0 |
7539e11f | 9626 | && CONSP (XCDR (key)) |
e0dff5f6 | 9627 | && ! localized_local_map) |
5ec75a55 | 9628 | { |
e0dff5f6 RS |
9629 | Lisp_Object map_here, start, pos; |
9630 | ||
9631 | localized_local_map = 1; | |
9632 | start = EVENT_START (key); | |
c60ee5e7 | 9633 | |
6b61353c | 9634 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
9635 | { |
9636 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb | 9637 | if (INTEGERP (pos) |
602ae44c CY |
9638 | && XINT (pos) >= BEGV |
9639 | && XINT (pos) <= ZV) | |
e0dff5f6 | 9640 | { |
30690496 | 9641 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9642 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9643 | if (!EQ (map_here, orig_local_map)) |
9644 | { | |
9645 | orig_local_map = map_here; | |
b74e16a3 | 9646 | ++localized_local_map; |
30690496 | 9647 | } |
b74e16a3 | 9648 | |
30690496 | 9649 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9650 | current_buffer, Qkeymap); |
30690496 DL |
9651 | if (!EQ (map_here, orig_keymap)) |
9652 | { | |
9653 | orig_keymap = map_here; | |
b74e16a3 DK |
9654 | ++localized_local_map; |
9655 | } | |
9656 | ||
9657 | if (localized_local_map > 1) | |
9658 | { | |
30690496 DL |
9659 | keybuf[t] = key; |
9660 | mock_input = t + 1; | |
9661 | ||
e0dff5f6 RS |
9662 | goto replay_sequence; |
9663 | } | |
9664 | } | |
9665 | } | |
9666 | } | |
9667 | ||
9668 | /* Expand mode-line and scroll-bar events into two events: | |
9669 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9670 | if (SYMBOLP (posn) |
9671 | && (NILP (fake_prefixed_keys) | |
9672 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9673 | { |
7e85b935 | 9674 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9675 | error ("Key sequence too long"); |
c60ee5e7 | 9676 | |
2dc00208 GM |
9677 | keybuf[t] = posn; |
9678 | keybuf[t + 1] = key; | |
9679 | mock_input = t + 2; | |
9680 | ||
9681 | /* Record that a fake prefix key has been generated | |
9682 | for KEY. Don't modify the event; this would | |
9683 | prevent proper action when the event is pushed | |
c7f4f573 | 9684 | back into unread-command-events. */ |
2dc00208 | 9685 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9686 | |
9687 | /* If on a mode line string with a local keymap, | |
9688 | reconsider the key sequence with that keymap. */ | |
6b61353c KH |
9689 | if (string = POSN_STRING (EVENT_START (key)), |
9690 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9691 | { |
6b61353c | 9692 | Lisp_Object pos, map, map2; |
7ee32cda | 9693 | |
7ee32cda GM |
9694 | pos = XCDR (string); |
9695 | string = XCAR (string); | |
52e386c2 | 9696 | if (XINT (pos) >= 0 |
d5db4077 | 9697 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9698 | { |
9699 | map = Fget_text_property (pos, Qlocal_map, string); | |
9700 | if (!NILP (map)) | |
9701 | orig_local_map = map; | |
9702 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9703 | if (!NILP (map2)) | |
9704 | orig_keymap = map2; | |
9705 | if (!NILP (map) || !NILP (map2)) | |
9706 | goto replay_sequence; | |
9707 | } | |
7ee32cda GM |
9708 | } |
9709 | ||
7e85b935 | 9710 | goto replay_key; |
5ec75a55 | 9711 | } |
6b61353c KH |
9712 | else if (NILP (from_string) |
9713 | && (string = POSN_STRING (EVENT_START (key)), | |
9714 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9715 | { |
9716 | /* For a click on a string, i.e. overlay string or a | |
9717 | string displayed via the `display' property, | |
9718 | consider `local-map' and `keymap' properties of | |
9719 | that string. */ | |
6b61353c | 9720 | Lisp_Object pos, map, map2; |
db14cfc5 | 9721 | |
db14cfc5 GM |
9722 | pos = XCDR (string); |
9723 | string = XCAR (string); | |
9724 | if (XINT (pos) >= 0 | |
d5db4077 | 9725 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9726 | { |
9727 | map = Fget_text_property (pos, Qlocal_map, string); | |
9728 | if (!NILP (map)) | |
9729 | orig_local_map = map; | |
9730 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9731 | if (!NILP (map2)) | |
9732 | orig_keymap = map2; | |
9733 | ||
9734 | if (!NILP (map) || !NILP (map2)) | |
9735 | { | |
9736 | from_string = string; | |
32949266 CY |
9737 | keybuf[t++] = key; |
9738 | mock_input = t; | |
db14cfc5 GM |
9739 | goto replay_sequence; |
9740 | } | |
9741 | } | |
9742 | } | |
0a7f1fc0 | 9743 | } |
7539e11f | 9744 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9745 | && CONSP (EVENT_START (key)) |
7539e11f | 9746 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9747 | { |
9b8eb840 | 9748 | Lisp_Object posn; |
7e85b935 | 9749 | |
6b61353c | 9750 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9751 | /* Handle menu-bar events: |
9752 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9753 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9754 | { |
9755 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9756 | error ("Key sequence too long"); |
7e85b935 RS |
9757 | keybuf[t] = posn; |
9758 | keybuf[t+1] = key; | |
9759 | ||
9760 | /* Zap the position in key, so we know that we've | |
9761 | expanded it, and don't try to do so again. */ | |
6b61353c KH |
9762 | POSN_SET_POSN (EVENT_START (key), |
9763 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9764 | |
9765 | mock_input = t + 2; | |
9766 | goto replay_sequence; | |
9767 | } | |
8c18cbfb | 9768 | else if (CONSP (posn)) |
7e85b935 RS |
9769 | { |
9770 | /* We're looking at the second event of a | |
9771 | sequence which we expanded before. Set | |
9772 | last_real_key_start appropriately. */ | |
9773 | if (last_real_key_start == t && t > 0) | |
9774 | last_real_key_start = t - 1; | |
9775 | } | |
a6d53864 | 9776 | } |
284f4730 | 9777 | } |
f4255cd1 JB |
9778 | |
9779 | /* We have finally decided that KEY is something we might want | |
9780 | to look up. */ | |
284f4730 JB |
9781 | first_binding = (follow_key (key, |
9782 | nmaps - first_binding, | |
253598e4 | 9783 | submaps + first_binding, |
284f4730 | 9784 | defs + first_binding, |
4e50f26a | 9785 | submaps + first_binding) |
284f4730 | 9786 | + first_binding); |
0a7f1fc0 | 9787 | |
f4255cd1 | 9788 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9789 | if (first_binding < nmaps) |
9790 | /* This is needed for the following scenario: | |
9791 | event 0: a down-event that gets dropped by calling replay_key. | |
9792 | event 1: some normal prefix like C-h. | |
4f4a84ec SM |
9793 | After event 0, first_unbound is 0, after event 1 indec.start, |
9794 | fkey.start, and keytran.start are all 1, so when we see that | |
9795 | C-h is bound, we need to update first_unbound. */ | |
65e0fbbf SM |
9796 | first_unbound = max (t + 1, first_unbound); |
9797 | else | |
0a7f1fc0 | 9798 | { |
9b8eb840 | 9799 | Lisp_Object head; |
c60ee5e7 | 9800 | |
4f4a84ec | 9801 | /* Remember the position to put an upper bound on indec.start. */ |
7189cad8 | 9802 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9803 | |
9b8eb840 | 9804 | head = EVENT_HEAD (key); |
24736fbc | 9805 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9806 | { |
9807 | read_key_sequence_cmd = Vprefix_help_command; | |
9808 | keybuf[t++] = key; | |
9809 | last_nonmenu_event = key; | |
bc536d84 RS |
9810 | /* The Microsoft C compiler can't handle the goto that |
9811 | would go here. */ | |
309b0fc8 | 9812 | dummyflag = 1; |
0d882d52 | 9813 | break; |
7e85b935 RS |
9814 | } |
9815 | ||
8c18cbfb | 9816 | if (SYMBOLP (head)) |
0a7f1fc0 | 9817 | { |
9b8eb840 KH |
9818 | Lisp_Object breakdown; |
9819 | int modifiers; | |
0a7f1fc0 | 9820 | |
9b8eb840 | 9821 | breakdown = parse_modifiers (head); |
7539e11f | 9822 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9823 | /* Attempt to reduce an unbound mouse event to a simpler |
9824 | event that is bound: | |
9825 | Drags reduce to clicks. | |
9826 | Double-clicks reduce to clicks. | |
9827 | Triple-clicks reduce to double-clicks, then to clicks. | |
9828 | Down-clicks are eliminated. | |
9829 | Double-downs reduce to downs, then are eliminated. | |
9830 | Triple-downs reduce to double-downs, then to downs, | |
9831 | then are eliminated. */ | |
9832 | if (modifiers & (down_modifier | drag_modifier | |
9833 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9834 | { |
559f9d04 RS |
9835 | while (modifiers & (down_modifier | drag_modifier |
9836 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9837 | { |
9838 | Lisp_Object new_head, new_click; | |
9839 | if (modifiers & triple_modifier) | |
9840 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9841 | else if (modifiers & double_modifier) |
9842 | modifiers &= ~double_modifier; | |
9843 | else if (modifiers & drag_modifier) | |
9844 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9845 | else |
9846 | { | |
9847 | /* Dispose of this `down' event by simply jumping | |
9848 | back to replay_key, to get another event. | |
9849 | ||
9850 | Note that if this event came from mock input, | |
9851 | then just jumping back to replay_key will just | |
9852 | hand it to us again. So we have to wipe out any | |
9853 | mock input. | |
9854 | ||
9855 | We could delete keybuf[t] and shift everything | |
9856 | after that to the left by one spot, but we'd also | |
9857 | have to fix up any variable that points into | |
9858 | keybuf, and shifting isn't really necessary | |
9859 | anyway. | |
9860 | ||
9861 | Adding prefixes for non-textual mouse clicks | |
9862 | creates two characters of mock input, and both | |
9863 | must be thrown away. If we're only looking at | |
9864 | the prefix now, we can just jump back to | |
9865 | replay_key. On the other hand, if we've already | |
9866 | processed the prefix, and now the actual click | |
9867 | itself is giving us trouble, then we've lost the | |
9868 | state of the keymaps we want to backtrack to, and | |
9869 | we need to replay the whole sequence to rebuild | |
9870 | it. | |
9871 | ||
9872 | Beyond that, only function key expansion could | |
9873 | create more than two keys, but that should never | |
9874 | generate mouse events, so it's okay to zero | |
9875 | mock_input in that case too. | |
9876 | ||
65e0fbbf SM |
9877 | FIXME: The above paragraph seems just plain |
9878 | wrong, if you consider things like | |
9879 | xterm-mouse-mode. -stef | |
9880 | ||
559f9d04 | 9881 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9882 | |
9883 | /* If mock_input > t + 1, the above simplification | |
9884 | will actually end up dropping keys on the floor. | |
9885 | This is probably OK for now, but even | |
4f4a84ec SM |
9886 | if mock_input <= t + 1, we need to adjust indec, |
9887 | fkey, and keytran. | |
017be6c7 SM |
9888 | Typical case [header-line down-mouse-N]: |
9889 | mock_input = 2, t = 1, fkey.end = 1, | |
9890 | last_real_key_start = 0. */ | |
4f4a84ec | 9891 | if (indec.end > last_real_key_start) |
017be6c7 | 9892 | { |
4f4a84ec SM |
9893 | indec.end = indec.start |
9894 | = min (last_real_key_start, indec.start); | |
9895 | indec.map = indec.parent; | |
9896 | if (fkey.end > last_real_key_start) | |
017be6c7 | 9897 | { |
4f4a84ec SM |
9898 | fkey.end = fkey.start |
9899 | = min (last_real_key_start, fkey.start); | |
9900 | fkey.map = fkey.parent; | |
9901 | if (keytran.end > last_real_key_start) | |
9902 | { | |
9903 | keytran.end = keytran.start | |
9904 | = min (last_real_key_start, keytran.start); | |
9905 | keytran.map = keytran.parent; | |
9906 | } | |
017be6c7 SM |
9907 | } |
9908 | } | |
559f9d04 RS |
9909 | if (t == last_real_key_start) |
9910 | { | |
9911 | mock_input = 0; | |
9912 | goto replay_key; | |
9913 | } | |
9914 | else | |
9915 | { | |
9916 | mock_input = last_real_key_start; | |
9917 | goto replay_sequence; | |
9918 | } | |
9919 | } | |
9920 | ||
27203ead | 9921 | new_head |
7539e11f | 9922 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9923 | new_click |
9924 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9925 | |
9926 | /* Look for a binding for this new key. follow_key | |
9927 | promises that it didn't munge submaps the | |
9928 | last time we called it, since key was unbound. */ | |
27203ead RS |
9929 | first_binding |
9930 | = (follow_key (new_click, | |
9931 | nmaps - local_first_binding, | |
9932 | submaps + local_first_binding, | |
9933 | defs + local_first_binding, | |
4e50f26a | 9934 | submaps + local_first_binding) |
27203ead | 9935 | + local_first_binding); |
fbcd35bd JB |
9936 | |
9937 | /* If that click is bound, go for it. */ | |
9938 | if (first_binding < nmaps) | |
9939 | { | |
9940 | key = new_click; | |
9941 | break; | |
9942 | } | |
9943 | /* Otherwise, we'll leave key set to the drag event. */ | |
9944 | } | |
0a7f1fc0 JB |
9945 | } |
9946 | } | |
9947 | } | |
9948 | ||
284f4730 | 9949 | keybuf[t++] = key; |
7d6de002 RS |
9950 | /* Normally, last_nonmenu_event gets the previous key we read. |
9951 | But when a mouse popup menu is being used, | |
9952 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9953 | event that preceded the first level of menu. */ | |
9954 | if (!used_mouse_menu) | |
9955 | last_nonmenu_event = key; | |
284f4730 | 9956 | |
6321824f RS |
9957 | /* Record what part of this_command_keys is the current key sequence. */ |
9958 | this_single_command_key_start = this_command_key_count - t; | |
9959 | ||
4f4a84ec SM |
9960 | /* Look for this sequence in input-decode-map. |
9961 | Scan from indec.end until we find a bound suffix. */ | |
9962 | while (indec.end < t) | |
9963 | { | |
9964 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9965 | int done, diff; | |
9966 | ||
9967 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); | |
9968 | done = keyremap_step (keybuf, bufsize, &indec, max (t, mock_input), | |
9969 | 1, &diff, prompt); | |
9970 | UNGCPRO; | |
9971 | if (done) | |
9972 | { | |
9973 | mock_input = diff + max (t, mock_input); | |
9974 | goto replay_sequence; | |
9975 | } | |
9976 | } | |
9977 | ||
9978 | if (first_binding < nmaps && NILP (submaps[first_binding]) | |
9979 | && indec.start >= t) | |
65e0fbbf | 9980 | /* There is a binding and it's not a prefix. |
4f4a84ec | 9981 | (and it doesn't have any input-decode-map translation pending). |
65e0fbbf SM |
9982 | There is thus no function-key in this sequence. |
9983 | Moving fkey.start is important in this case to allow keytran.start | |
9984 | to go over the sequence before we return (since we keep the | |
9985 | invariant that keytran.end <= fkey.start). */ | |
9986 | { | |
a7f26f28 | 9987 | if (fkey.start < t) |
24d80a06 | 9988 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9989 | } |
9990 | else | |
9991 | /* If the sequence is unbound, see if we can hang a function key | |
9992 | off the end of it. */ | |
fe5b94c5 | 9993 | /* Continue scan from fkey.end until we find a bound suffix. */ |
4f4a84ec | 9994 | while (fkey.end < indec.start) |
a612e298 | 9995 | { |
4f4a84ec | 9996 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 SM |
9997 | int done, diff; |
9998 | ||
4f4a84ec | 9999 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 SM |
10000 | done = keyremap_step (keybuf, bufsize, &fkey, |
10001 | max (t, mock_input), | |
10002 | /* If there's a binding (i.e. | |
10003 | first_binding >= nmaps) we don't want | |
10004 | to apply this function-key-mapping. */ | |
10005 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 10006 | &diff, prompt); |
fe5b94c5 SM |
10007 | UNGCPRO; |
10008 | if (done) | |
a612e298 | 10009 | { |
fe5b94c5 | 10010 | mock_input = diff + max (t, mock_input); |
4f4a84ec SM |
10011 | /* Adjust the input-decode-map counters. */ |
10012 | indec.end += diff; | |
10013 | indec.start += diff; | |
10014 | ||
a612e298 RS |
10015 | goto replay_sequence; |
10016 | } | |
fe5b94c5 | 10017 | } |
a612e298 | 10018 | |
fe5b94c5 SM |
10019 | /* Look for this sequence in key-translation-map. |
10020 | Scan from keytran.end until we find a bound suffix. */ | |
10021 | while (keytran.end < fkey.start) | |
10022 | { | |
4f4a84ec | 10023 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 | 10024 | int done, diff; |
a612e298 | 10025 | |
4f4a84ec | 10026 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 | 10027 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), |
24d80a06 | 10028 | 1, &diff, prompt); |
fe5b94c5 SM |
10029 | UNGCPRO; |
10030 | if (done) | |
10031 | { | |
10032 | mock_input = diff + max (t, mock_input); | |
4f4a84ec SM |
10033 | /* Adjust the function-key-map and input-decode-map counters. */ |
10034 | indec.end += diff; | |
10035 | indec.start += diff; | |
fe5b94c5 SM |
10036 | fkey.end += diff; |
10037 | fkey.start += diff; | |
6b61353c | 10038 | |
fe5b94c5 SM |
10039 | goto replay_sequence; |
10040 | } | |
10041 | } | |
4e50f26a RS |
10042 | |
10043 | /* If KEY is not defined in any of the keymaps, | |
10044 | and cannot be part of a function key or translation, | |
10045 | and is an upper case letter | |
10046 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 10047 | if (first_binding >= nmaps |
4f4a84ec | 10048 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t |
8c18cbfb | 10049 | && INTEGERP (key) |
c23cad0b | 10050 | && ((CHARACTERP (make_number (XINT (key) & ~CHAR_MODIFIER_MASK)) |
16747e03 | 10051 | && UPPERCASEP (XINT (key) & ~CHAR_MODIFIER_MASK)) |
4e50f26a RS |
10052 | || (XINT (key) & shift_modifier))) |
10053 | { | |
569871d2 | 10054 | Lisp_Object new_key; |
569871d2 | 10055 | |
309b0fc8 RS |
10056 | original_uppercase = key; |
10057 | original_uppercase_position = t - 1; | |
10058 | ||
831f35a2 | 10059 | if (XINT (key) & shift_modifier) |
569871d2 | 10060 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 10061 | else |
16747e03 | 10062 | XSETINT (new_key, (DOWNCASE (XINT (key) & ~CHAR_MODIFIER_MASK) |
a864f6d6 | 10063 | | (XINT (key) & CHAR_MODIFIER_MASK))); |
569871d2 | 10064 | |
3fe8e9a2 RS |
10065 | /* We have to do this unconditionally, regardless of whether |
10066 | the lower-case char is defined in the keymaps, because they | |
10067 | might get translated through function-key-map. */ | |
10068 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 10069 | mock_input = max (t, mock_input); |
025ae953 | 10070 | shift_translated = 1; |
3fe8e9a2 RS |
10071 | |
10072 | goto replay_sequence; | |
4e50f26a | 10073 | } |
ef8fd672 RS |
10074 | /* If KEY is not defined in any of the keymaps, |
10075 | and cannot be part of a function key or translation, | |
10076 | and is a shifted function key, | |
10077 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 10078 | if (first_binding >= nmaps |
21ec2c43 | 10079 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t) |
ef8fd672 | 10080 | { |
21ec2c43 SM |
10081 | Lisp_Object breakdown = parse_modifiers (key); |
10082 | int modifiers | |
10083 | = CONSP (breakdown) ? (XINT (XCAR (XCDR (breakdown)))) : 0; | |
10084 | ||
10085 | if (modifiers & shift_modifier | |
10086 | /* Treat uppercase keys as shifted. */ | |
10087 | || (INTEGERP (key) | |
87df3c32 SM |
10088 | && (KEY_TO_CHAR (key) |
10089 | < XCHAR_TABLE (current_buffer->downcase_table)->size) | |
21ec2c43 | 10090 | && UPPERCASEP (KEY_TO_CHAR (key)))) |
ef8fd672 | 10091 | { |
21ec2c43 SM |
10092 | Lisp_Object new_key |
10093 | = (modifiers & shift_modifier | |
10094 | ? apply_modifiers (modifiers & ~shift_modifier, | |
10095 | XCAR (breakdown)) | |
10096 | : make_number (DOWNCASE (KEY_TO_CHAR (key)) | modifiers)); | |
3fe8e9a2 RS |
10097 | |
10098 | original_uppercase = key; | |
10099 | original_uppercase_position = t - 1; | |
ef8fd672 | 10100 | |
21ec2c43 SM |
10101 | /* We have to do this unconditionally, regardless of whether |
10102 | the lower-case char is defined in the keymaps, because they | |
10103 | might get translated through function-key-map. */ | |
3fe8e9a2 | 10104 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 10105 | mock_input = max (t, mock_input); |
21ec2c43 SM |
10106 | /* Reset fkey (and consequently keytran) to apply |
10107 | function-key-map on the result, so that S-backspace is | |
10108 | correctly mapped to DEL (via backspace). OTOH, | |
10109 | input-decode-map doesn't need to go through it again. */ | |
10110 | fkey.start = fkey.end = 0; | |
10111 | keytran.start = keytran.end = 0; | |
025ae953 | 10112 | shift_translated = 1; |
21ec2c43 | 10113 | |
3fe8e9a2 | 10114 | goto replay_sequence; |
ef8fd672 RS |
10115 | } |
10116 | } | |
284f4730 | 10117 | } |
309b0fc8 | 10118 | if (!dummyflag) |
bc536d84 RS |
10119 | read_key_sequence_cmd = (first_binding < nmaps |
10120 | ? defs[first_binding] | |
10121 | : Qnil); | |
284f4730 | 10122 | |
cd21b839 | 10123 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 10124 | unbind_to (count, Qnil); |
07f76a14 | 10125 | |
3fe8e9a2 RS |
10126 | /* Don't downcase the last character if the caller says don't. |
10127 | Don't downcase it if the result is undefined, either. */ | |
10128 | if ((dont_downcase_last || first_binding >= nmaps) | |
a53fe666 | 10129 | && t > 0 |
3fe8e9a2 | 10130 | && t - 1 == original_uppercase_position) |
025ae953 CY |
10131 | { |
10132 | keybuf[t - 1] = original_uppercase; | |
10133 | shift_translated = 0; | |
10134 | } | |
10135 | ||
10136 | if (shift_translated) | |
10137 | Vthis_command_keys_shift_translated = Qt; | |
309b0fc8 | 10138 | |
07f76a14 JB |
10139 | /* Occasionally we fabricate events, perhaps by expanding something |
10140 | according to function-key-map, or by adding a prefix symbol to a | |
10141 | mouse click in the scroll bar or modeline. In this cases, return | |
10142 | the entire generated key sequence, even if we hit an unbound | |
10143 | prefix or a definition before the end. This means that you will | |
10144 | be able to push back the event properly, and also means that | |
10145 | read-key-sequence will always return a logical unit. | |
10146 | ||
10147 | Better ideas? */ | |
cca310da JB |
10148 | for (; t < mock_input; t++) |
10149 | { | |
f2647d04 DL |
10150 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
10151 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 10152 | echo_char (keybuf[t]); |
cca310da JB |
10153 | add_command_key (keybuf[t]); |
10154 | } | |
07f76a14 | 10155 | |
2dc00208 | 10156 | UNGCPRO; |
284f4730 JB |
10157 | return t; |
10158 | } | |
10159 | ||
d5eecefb | 10160 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
10161 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
10162 | The sequence is sufficient to specify a non-prefix command in the | |
10163 | current local and global maps. | |
10164 | ||
10165 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
10166 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
10167 | as a continuation of the previous key. | |
10168 | ||
10169 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
10170 | convert the last event to lower case. (Normally any upper case event | |
10171 | is converted to lower case if the original event is undefined and the lower | |
10172 | case equivalent is defined.) A non-nil value is appropriate for reading | |
10173 | a key sequence to be defined. | |
10174 | ||
10175 | A C-g typed while in this function is treated like any other character, | |
10176 | and `quit-flag' is not set. | |
10177 | ||
10178 | If the key sequence starts with a mouse click, then the sequence is read | |
10179 | using the keymaps of the buffer of the window clicked in, not the buffer | |
10180 | of the selected window as normal. | |
10181 | ||
10182 | `read-key-sequence' drops unbound button-down events, since you normally | |
10183 | only care about the click or drag events which follow them. If a drag | |
10184 | or multi-click event is unbound, but the corresponding click event would | |
10185 | be bound, `read-key-sequence' turns the event into a click event at the | |
10186 | drag's starting position. This means that you don't have to distinguish | |
10187 | between click and drag, double, or triple events unless you want to. | |
10188 | ||
10189 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
10190 | lines separating windows, and scroll bars with imaginary keys | |
10191 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
10192 | ||
10193 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
10194 | function will process a switch-frame event if the user switches frames | |
10195 | before typing anything. If the user switches frames in the middle of a | |
10196 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
10197 | is nil, then the event will be put off until after the current key sequence. | |
10198 | ||
10199 | `read-key-sequence' checks `function-key-map' for function key | |
10200 | sequences, where they wouldn't conflict with ordinary bindings. See | |
10201 | `function-key-map' for more details. | |
10202 | ||
10203 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
10204 | that this key sequence is being read by something that will | |
10205 | read commands one after another. It should be nil if the caller | |
10206 | will read just one key sequence. */) | |
d5eecefb RS |
10207 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
10208 | command_loop) | |
309b0fc8 | 10209 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10210 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
10211 | { |
10212 | Lisp_Object keybuf[30]; | |
10213 | register int i; | |
03cee6ae | 10214 | struct gcpro gcpro1; |
aed13378 | 10215 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10216 | |
10217 | if (!NILP (prompt)) | |
b7826503 | 10218 | CHECK_STRING (prompt); |
284f4730 JB |
10219 | QUIT; |
10220 | ||
d5eecefb RS |
10221 | specbind (Qinput_method_exit_on_first_char, |
10222 | (NILP (command_loop) ? Qt : Qnil)); | |
10223 | specbind (Qinput_method_use_echo_area, | |
10224 | (NILP (command_loop) ? Qt : Qnil)); | |
10225 | ||
284f4730 JB |
10226 | bzero (keybuf, sizeof keybuf); |
10227 | GCPRO1 (keybuf[0]); | |
10228 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10229 | ||
daa37602 | 10230 | if (NILP (continue_echo)) |
6321824f RS |
10231 | { |
10232 | this_command_key_count = 0; | |
63020c46 | 10233 | this_command_key_count_reset = 0; |
6321824f RS |
10234 | this_single_command_key_start = 0; |
10235 | } | |
c0a58692 | 10236 | |
d148e14d | 10237 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10238 | if (display_hourglass_p) |
10239 | cancel_hourglass (); | |
d0c48478 GM |
10240 | #endif |
10241 | ||
309b0fc8 | 10242 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 10243 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 10244 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 10245 | |
ae18aa3b | 10246 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 10247 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 10248 | for code reading keys in a loop, like an input method. */ |
d148e14d | 10249 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10250 | if (display_hourglass_p) |
10251 | start_hourglass (); | |
ae18aa3b | 10252 | #endif |
d0c48478 GM |
10253 | #endif |
10254 | ||
dcc408a0 RS |
10255 | if (i == -1) |
10256 | { | |
10257 | Vquit_flag = Qt; | |
10258 | QUIT; | |
10259 | } | |
284f4730 | 10260 | UNGCPRO; |
d5eecefb | 10261 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 10262 | } |
e39da3d7 RS |
10263 | |
10264 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 10265 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
10266 | doc: /* Like `read-key-sequence' but always return a vector. */) |
10267 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
10268 | command_loop) | |
e39da3d7 | 10269 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10270 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
10271 | { |
10272 | Lisp_Object keybuf[30]; | |
10273 | register int i; | |
03cee6ae | 10274 | struct gcpro gcpro1; |
aed13378 | 10275 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
10276 | |
10277 | if (!NILP (prompt)) | |
b7826503 | 10278 | CHECK_STRING (prompt); |
e39da3d7 RS |
10279 | QUIT; |
10280 | ||
d5eecefb RS |
10281 | specbind (Qinput_method_exit_on_first_char, |
10282 | (NILP (command_loop) ? Qt : Qnil)); | |
10283 | specbind (Qinput_method_use_echo_area, | |
10284 | (NILP (command_loop) ? Qt : Qnil)); | |
10285 | ||
e39da3d7 RS |
10286 | bzero (keybuf, sizeof keybuf); |
10287 | GCPRO1 (keybuf[0]); | |
10288 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10289 | ||
10290 | if (NILP (continue_echo)) | |
10291 | { | |
10292 | this_command_key_count = 0; | |
63020c46 | 10293 | this_command_key_count_reset = 0; |
e39da3d7 RS |
10294 | this_single_command_key_start = 0; |
10295 | } | |
10296 | ||
d148e14d | 10297 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10298 | if (display_hourglass_p) |
10299 | cancel_hourglass (); | |
d0c48478 GM |
10300 | #endif |
10301 | ||
e39da3d7 RS |
10302 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
10303 | prompt, ! NILP (dont_downcase_last), | |
10304 | ! NILP (can_return_switch_frame), 0); | |
10305 | ||
d148e14d | 10306 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10307 | if (display_hourglass_p) |
10308 | start_hourglass (); | |
d0c48478 GM |
10309 | #endif |
10310 | ||
e39da3d7 RS |
10311 | if (i == -1) |
10312 | { | |
10313 | Vquit_flag = Qt; | |
10314 | QUIT; | |
10315 | } | |
10316 | UNGCPRO; | |
d5eecefb | 10317 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 10318 | } |
284f4730 | 10319 | \f |
158f7532 | 10320 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
10321 | doc: /* Execute CMD as an editor command. |
10322 | CMD must be a symbol that satisfies the `commandp' predicate. | |
10323 | Optional second arg RECORD-FLAG non-nil | |
10324 | means unconditionally put this command in `command-history'. | |
10325 | Otherwise, that is done only if an arg is read using the minibuffer. | |
10326 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
10327 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
10328 | The argument SPECIAL, if non-nil, means that this command is executing | |
10329 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
10330 | (cmd, record_flag, keys, special) |
10331 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
10332 | { |
10333 | register Lisp_Object final; | |
10334 | register Lisp_Object tem; | |
10335 | Lisp_Object prefixarg; | |
284f4730 JB |
10336 | extern int debug_on_next_call; |
10337 | ||
284f4730 JB |
10338 | debug_on_next_call = 0; |
10339 | ||
158f7532 RS |
10340 | if (NILP (special)) |
10341 | { | |
10342 | prefixarg = current_kboard->Vprefix_arg; | |
10343 | Vcurrent_prefix_arg = prefixarg; | |
10344 | current_kboard->Vprefix_arg = Qnil; | |
10345 | } | |
10346 | else | |
10347 | prefixarg = Qnil; | |
10348 | ||
8c18cbfb | 10349 | if (SYMBOLP (cmd)) |
284f4730 JB |
10350 | { |
10351 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 10352 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 10353 | { |
971e4c98 | 10354 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 10355 | if (!NILP (tem)) |
971e4c98 | 10356 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 10357 | } |
284f4730 JB |
10358 | } |
10359 | ||
01e26217 | 10360 | while (1) |
284f4730 | 10361 | { |
a7f96a35 | 10362 | final = Findirect_function (cmd, Qnil); |
284f4730 JB |
10363 | |
10364 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
10365 | { |
10366 | struct gcpro gcpro1, gcpro2; | |
10367 | ||
10368 | GCPRO2 (cmd, prefixarg); | |
10369 | do_autoload (final, cmd); | |
10370 | UNGCPRO; | |
10371 | } | |
284f4730 JB |
10372 | else |
10373 | break; | |
10374 | } | |
10375 | ||
8c18cbfb | 10376 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
10377 | { |
10378 | /* If requested, place the macro in the command history. For | |
10379 | other sorts of commands, call-interactively takes care of | |
10380 | this. */ | |
e57d8fd8 | 10381 | if (!NILP (record_flag)) |
f4385381 RS |
10382 | { |
10383 | Vcommand_history | |
10384 | = Fcons (Fcons (Qexecute_kbd_macro, | |
10385 | Fcons (final, Fcons (prefixarg, Qnil))), | |
10386 | Vcommand_history); | |
10387 | ||
10388 | /* Don't keep command history around forever. */ | |
10389 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
10390 | { | |
10391 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
10392 | if (CONSP (tem)) | |
f3fbd155 | 10393 | XSETCDR (tem, Qnil); |
f4385381 RS |
10394 | } |
10395 | } | |
284f4730 | 10396 | |
caa06051 | 10397 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 10398 | } |
f4385381 | 10399 | |
8c18cbfb | 10400 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
6d0867e5 SM |
10401 | /* Don't call Fcall_interactively directly because we want to make |
10402 | sure the backtrace has an entry for `call-interactively'. | |
10403 | For the same reason, pass `cmd' rather than `final'. */ | |
10404 | return call3 (Qcall_interactively, cmd, record_flag, keys); | |
284f4730 | 10405 | |
284f4730 JB |
10406 | return Qnil; |
10407 | } | |
c970a760 GM |
10408 | |
10409 | ||
284f4730 | 10410 | \f |
284f4730 | 10411 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 | 10412 | 1, 1, "P", |
dfb4bff5 EZ |
10413 | doc: /* Read function name, then read its arguments and call it. |
10414 | ||
10415 | To pass a numeric argument to the command you are invoking with, specify | |
10416 | the numeric argument to this command. | |
10417 | ||
10418 | Noninteractively, the argument PREFIXARG is the prefix argument to | |
10419 | give to the command you invoke, if it asks for an argument. */) | |
4707d2d0 | 10420 | (prefixarg) |
284f4730 JB |
10421 | Lisp_Object prefixarg; |
10422 | { | |
10423 | Lisp_Object function; | |
10424 | char buf[40]; | |
2e1a49ad SM |
10425 | int saved_last_point_position; |
10426 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 10427 | Lisp_Object bindings, value; |
2e1a49ad | 10428 | struct gcpro gcpro1, gcpro2, gcpro3; |
d148e14d | 10429 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10430 | /* The call to Fcompleting_read wil start and cancel the hourglass, |
10431 | but if the hourglass was already scheduled, this means that no | |
10432 | hourglass will be shown for the actual M-x command itself. | |
10433 | So we restart it if it is already scheduled. Note that checking | |
10434 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
10435 | just scheduled to be shown. */ | |
10436 | int hstarted = hourglass_started (); | |
10437 | #endif | |
284f4730 | 10438 | |
b0f2a7bf KH |
10439 | saved_keys = Fvector (this_command_key_count, |
10440 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
10441 | saved_last_point_position_buffer = last_point_position_buffer; |
10442 | saved_last_point_position = last_point_position; | |
284f4730 | 10443 | buf[0] = 0; |
2e1a49ad | 10444 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
10445 | |
10446 | if (EQ (prefixarg, Qminus)) | |
10447 | strcpy (buf, "- "); | |
7539e11f | 10448 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 10449 | strcpy (buf, "C-u "); |
7539e11f | 10450 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
cea5d0d4 | 10451 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
8c18cbfb | 10452 | else if (INTEGERP (prefixarg)) |
cea5d0d4 | 10453 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
284f4730 JB |
10454 | |
10455 | /* This isn't strictly correct if execute-extended-command | |
10456 | is bound to anything else. Perhaps it should use | |
10457 | this_command_keys? */ | |
10458 | strcat (buf, "M-x "); | |
10459 | ||
10460 | /* Prompt with buf, and then read a string, completing from and | |
10461 | restricting to the set of all defined commands. Don't provide | |
51763820 | 10462 | any initial input. Save the command read on the extended-command |
03b4122a | 10463 | history list. */ |
284f4730 JB |
10464 | function = Fcompleting_read (build_string (buf), |
10465 | Vobarray, Qcommandp, | |
4328577a KH |
10466 | Qt, Qnil, Qextended_command_history, Qnil, |
10467 | Qnil); | |
284f4730 | 10468 | |
d148e14d | 10469 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10470 | if (hstarted) start_hourglass (); |
10471 | #endif | |
10472 | ||
d5db4077 | 10473 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
10474 | error ("No command name given"); |
10475 | ||
1113d9db JB |
10476 | /* Set this_command_keys to the concatenation of saved_keys and |
10477 | function, followed by a RET. */ | |
284f4730 | 10478 | { |
b0f2a7bf | 10479 | Lisp_Object *keys; |
284f4730 | 10480 | int i; |
284f4730 | 10481 | |
1113d9db | 10482 | this_command_key_count = 0; |
63020c46 | 10483 | this_command_key_count_reset = 0; |
6321824f | 10484 | this_single_command_key_start = 0; |
1113d9db | 10485 | |
b0f2a7bf KH |
10486 | keys = XVECTOR (saved_keys)->contents; |
10487 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
10488 | add_command_key (keys[i]); | |
1113d9db | 10489 | |
1b049b51 | 10490 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 10491 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 10492 | |
301738ed | 10493 | add_command_key (make_number ('\015')); |
284f4730 JB |
10494 | } |
10495 | ||
2e1a49ad SM |
10496 | last_point_position = saved_last_point_position; |
10497 | last_point_position_buffer = saved_last_point_position_buffer; | |
10498 | ||
284f4730 JB |
10499 | UNGCPRO; |
10500 | ||
0a7f1fc0 | 10501 | function = Fintern (function, Qnil); |
d8bcf58e | 10502 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
10503 | Vthis_command = function; |
10504 | real_this_command = function; | |
284f4730 | 10505 | |
6526ab49 RS |
10506 | /* If enabled, show which key runs this command. */ |
10507 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 10508 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 10509 | && SYMBOLP (function)) |
5434fce6 | 10510 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 10511 | Qt, Qnil, Qnil); |
5434fce6 RS |
10512 | else |
10513 | bindings = Qnil; | |
6526ab49 | 10514 | |
5434fce6 | 10515 | value = Qnil; |
6d0867e5 | 10516 | GCPRO3 (bindings, value, function); |
5434fce6 | 10517 | value = Fcommand_execute (function, Qt, Qnil, Qnil); |
6526ab49 | 10518 | |
5434fce6 | 10519 | /* If the command has a key binding, print it now. */ |
3ababa60 | 10520 | if (!NILP (bindings) |
ee112567 KH |
10521 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
10522 | Qmouse_movement))) | |
5434fce6 RS |
10523 | { |
10524 | /* But first wait, and skip the message if there is input. */ | |
7ba07a1a CY |
10525 | Lisp_Object waited; |
10526 | ||
666dc232 KS |
10527 | /* If this command displayed something in the echo area; |
10528 | wait a few seconds, then display our suggestion message. */ | |
10529 | if (NILP (echo_area_buffer[0])) | |
10530 | waited = sit_for (make_number (0), 0, 2); | |
10531 | else if (NUMBERP (Vsuggest_key_bindings)) | |
2bcac766 | 10532 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
426939cc | 10533 | else |
666dc232 | 10534 | waited = sit_for (make_number (2), 0, 2); |
426939cc | 10535 | |
7ba07a1a | 10536 | if (!NILP (waited) && ! CONSP (Vunread_command_events)) |
6526ab49 | 10537 | { |
5434fce6 RS |
10538 | Lisp_Object binding; |
10539 | char *newmessage; | |
985f9f66 | 10540 | int message_p = push_message (); |
331379bf | 10541 | int count = SPECPDL_INDEX (); |
5434fce6 | 10542 | |
65efd7da | 10543 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 10544 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
10545 | |
10546 | newmessage | |
d5db4077 KR |
10547 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
10548 | + SBYTES (binding) | |
5434fce6 | 10549 | + 100); |
3ababa60 | 10550 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
10551 | SDATA (SYMBOL_NAME (function)), |
10552 | SDATA (binding)); | |
301738ed RS |
10553 | message2_nolog (newmessage, |
10554 | strlen (newmessage), | |
10555 | STRING_MULTIBYTE (binding)); | |
7ba07a1a | 10556 | if (NUMBERP (Vsuggest_key_bindings)) |
666dc232 | 10557 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
7ba07a1a | 10558 | else |
666dc232 | 10559 | waited = sit_for (make_number (2), 0, 2); |
7ba07a1a CY |
10560 | |
10561 | if (!NILP (waited) && message_p) | |
985f9f66 GM |
10562 | restore_message (); |
10563 | ||
c970a760 | 10564 | unbind_to (count, Qnil); |
6526ab49 RS |
10565 | } |
10566 | } | |
10567 | ||
5434fce6 | 10568 | RETURN_UNGCPRO (value); |
284f4730 | 10569 | } |
6526ab49 | 10570 | |
284f4730 | 10571 | \f |
d9d4c147 | 10572 | /* Return nonzero if input events are pending. */ |
284f4730 | 10573 | |
dfcf069d | 10574 | int |
284f4730 JB |
10575 | detect_input_pending () |
10576 | { | |
10577 | if (!input_pending) | |
d9d4c147 KH |
10578 | get_input_pending (&input_pending, 0); |
10579 | ||
10580 | return input_pending; | |
10581 | } | |
10582 | ||
a2d5fca0 JD |
10583 | /* Return nonzero if input events other than mouse movements are |
10584 | pending. */ | |
10585 | ||
10586 | int | |
10587 | detect_input_pending_ignore_squeezables () | |
10588 | { | |
10589 | if (!input_pending) | |
10590 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
10591 | ||
10592 | return input_pending; | |
10593 | } | |
10594 | ||
b1878f45 | 10595 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 10596 | |
dfcf069d | 10597 | int |
87dd9b9b RS |
10598 | detect_input_pending_run_timers (do_display) |
10599 | int do_display; | |
d9d4c147 | 10600 | { |
87dd9b9b RS |
10601 | int old_timers_run = timers_run; |
10602 | ||
d9d4c147 | 10603 | if (!input_pending) |
a2d5fca0 | 10604 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 10605 | |
87dd9b9b | 10606 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 10607 | { |
3007ebfb | 10608 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
10609 | /* The following fixes a bug when using lazy-lock with |
10610 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
10611 | from an idle timer function. The symptom of the bug is that | |
10612 | the cursor sometimes doesn't become visible until the next X | |
10613 | event is processed. --gerd. */ | |
fa971ac3 KL |
10614 | { |
10615 | Lisp_Object tail, frame; | |
10616 | FOR_EACH_FRAME (tail, frame) | |
10617 | if (FRAME_RIF (XFRAME (frame))) | |
10618 | FRAME_RIF (XFRAME (frame))->flush_display (XFRAME (frame)); | |
10619 | } | |
7ee32cda | 10620 | } |
87dd9b9b | 10621 | |
284f4730 JB |
10622 | return input_pending; |
10623 | } | |
10624 | ||
ffd56f97 JB |
10625 | /* This is called in some cases before a possible quit. |
10626 | It cases the next call to detect_input_pending to recompute input_pending. | |
10627 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
10628 | |
10629 | void | |
ffd56f97 JB |
10630 | clear_input_pending () |
10631 | { | |
10632 | input_pending = 0; | |
10633 | } | |
10634 | ||
b1878f45 | 10635 | /* Return nonzero if there are pending requeued events. |
d64b707c | 10636 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 10637 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
10638 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
10639 | to do in that case. It isn't trivial. */ | |
10640 | ||
dfcf069d | 10641 | int |
b1878f45 RS |
10642 | requeued_events_pending_p () |
10643 | { | |
10644 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
10645 | } | |
10646 | ||
10647 | ||
284f4730 | 10648 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
10649 | doc: /* Return t if command input is currently available with no wait. |
10650 | Actually, the value is nil only if we can be sure that no input is available; | |
10651 | if there is a doubt, the value is t. */) | |
4707d2d0 | 10652 | () |
284f4730 | 10653 | { |
182f67de KS |
10654 | if (!NILP (Vunread_command_events) || unread_command_char != -1 |
10655 | || !NILP (Vunread_post_input_method_events) | |
10656 | || !NILP (Vunread_input_method_events)) | |
284f4730 JB |
10657 | return (Qt); |
10658 | ||
a2d5fca0 JD |
10659 | get_input_pending (&input_pending, |
10660 | READABLE_EVENTS_DO_TIMERS_NOW | |
10661 | | READABLE_EVENTS_FILTER_EVENTS); | |
d9d4c147 | 10662 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
10663 | } |
10664 | ||
10665 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
0721f230 | 10666 | doc: /* Return vector of last 300 events, not counting those from keyboard macros. */) |
4707d2d0 | 10667 | () |
284f4730 | 10668 | { |
5160df46 | 10669 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
10670 | Lisp_Object val; |
10671 | ||
10672 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 10673 | return Fvector (total_keys, keys); |
284f4730 JB |
10674 | else |
10675 | { | |
5160df46 JB |
10676 | val = Fvector (NUM_RECENT_KEYS, keys); |
10677 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
10678 | XVECTOR (val)->contents, |
10679 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 10680 | bcopy (keys, |
284f4730 JB |
10681 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
10682 | recent_keys_index * sizeof (Lisp_Object)); | |
10683 | return val; | |
10684 | } | |
10685 | } | |
10686 | ||
10687 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 10688 | doc: /* Return the key sequence that invoked this command. |
92501652 | 10689 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 10690 | the last key sequence that has been read. |
65849ada EZ |
10691 | The value is a string or a vector. |
10692 | ||
10693 | See also `this-command-keys-vector'. */) | |
4707d2d0 | 10694 | () |
284f4730 | 10695 | { |
86e5706b RS |
10696 | return make_event_array (this_command_key_count, |
10697 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
10698 | } |
10699 | ||
e39da3d7 | 10700 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
10701 | doc: /* Return the key sequence that invoked this command, as a vector. |
10702 | However, if the command has called `read-key-sequence', it returns | |
65849ada EZ |
10703 | the last key sequence that has been read. |
10704 | ||
10705 | See also `this-command-keys'. */) | |
4707d2d0 | 10706 | () |
e39da3d7 RS |
10707 | { |
10708 | return Fvector (this_command_key_count, | |
10709 | XVECTOR (this_command_keys)->contents); | |
10710 | } | |
10711 | ||
6321824f RS |
10712 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10713 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10714 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10715 | More generally, it returns the last key sequence read, either by |
10716 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10717 | Unlike `this-command-keys', this function's value |
10718 | does not include prefix arguments. | |
10719 | The value is always a vector. */) | |
10720 | () | |
6321824f | 10721 | { |
e39da3d7 RS |
10722 | return Fvector (this_command_key_count |
10723 | - this_single_command_key_start, | |
10724 | (XVECTOR (this_command_keys)->contents | |
10725 | + this_single_command_key_start)); | |
6321824f RS |
10726 | } |
10727 | ||
7d18f9ae RS |
10728 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10729 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10730 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10731 | More generally, it returns the last key sequence read, either by |
10732 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10733 | Unlike `this-single-command-keys', this function's value |
10734 | shows the events before all translations (except for input methods). | |
10735 | The value is always a vector. */) | |
10736 | () | |
7d18f9ae RS |
10737 | { |
10738 | return Fvector (raw_keybuf_count, | |
10739 | (XVECTOR (raw_keybuf)->contents)); | |
10740 | } | |
10741 | ||
71918b75 | 10742 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10743 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10744 | doc: /* Make the unread events replace the last command and echo. |
10745 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10746 | |
10747 | `universal-argument-other-key' rereads the event just typed. | |
10748 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10749 | The translated event has to replace the real events, |
10750 | both in the value of (this-command-keys) and in echoing. | |
10751 | To achieve this, `universal-argument-other-key' calls | |
10752 | `reset-this-command-lengths', which discards the record of reading | |
10753 | these events the first time. */) | |
4707d2d0 | 10754 | () |
71918b75 | 10755 | { |
22b94eeb RS |
10756 | this_command_key_count = before_command_key_count; |
10757 | if (this_command_key_count < this_single_command_key_start) | |
10758 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10759 | |
22b94eeb RS |
10760 | echo_truncate (before_command_echo_length); |
10761 | ||
63020c46 RS |
10762 | /* Cause whatever we put into unread-command-events |
10763 | to echo as if it were being freshly read from the keyboard. */ | |
10764 | this_command_key_count_reset = 1; | |
10765 | ||
6e5742a0 | 10766 | return Qnil; |
71918b75 RS |
10767 | } |
10768 | ||
82e6e5af | 10769 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10770 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10771 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10772 | Also clear the record of the last 100 events, unless optional arg |
10773 | KEEP-RECORD is non-nil. */) | |
10774 | (keep_record) | |
10775 | Lisp_Object keep_record; | |
82e6e5af | 10776 | { |
fb0dde6c | 10777 | int i; |
c60ee5e7 | 10778 | |
82e6e5af | 10779 | this_command_key_count = 0; |
63020c46 | 10780 | this_command_key_count_reset = 0; |
fb0dde6c | 10781 | |
ab1959fc KS |
10782 | if (NILP (keep_record)) |
10783 | { | |
10784 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10785 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10786 | total_keys = 0; | |
10787 | recent_keys_index = 0; | |
10788 | } | |
82e6e5af RS |
10789 | return Qnil; |
10790 | } | |
10791 | ||
284f4730 | 10792 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
10793 | doc: /* Return the current depth in recursive edits. */) |
10794 | () | |
284f4730 JB |
10795 | { |
10796 | Lisp_Object temp; | |
bb9e9bed | 10797 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10798 | return temp; |
10799 | } | |
10800 | ||
10801 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10802 | "FOpen dribble file: ", |
10803 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10804 | If FILE is nil, close any open dribble file. */) | |
10805 | (file) | |
284f4730 JB |
10806 | Lisp_Object file; |
10807 | { | |
6cb52def | 10808 | if (dribble) |
284f4730 | 10809 | { |
34f5c10f | 10810 | BLOCK_INPUT; |
6cb52def | 10811 | fclose (dribble); |
34f5c10f | 10812 | UNBLOCK_INPUT; |
6cb52def | 10813 | dribble = 0; |
284f4730 | 10814 | } |
6cb52def | 10815 | if (!NILP (file)) |
284f4730 JB |
10816 | { |
10817 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10818 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10819 | if (dribble == 0) |
10820 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10821 | } |
10822 | return Qnil; | |
10823 | } | |
10824 | ||
10825 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10826 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10827 | Also end any kbd macro being defined. */) |
4707d2d0 | 10828 | () |
284f4730 | 10829 | { |
2b17d5ed KS |
10830 | if (!NILP (current_kboard->defining_kbd_macro)) |
10831 | { | |
10832 | /* Discard the last command from the macro. */ | |
10833 | Fcancel_kbd_macro_events (); | |
10834 | end_kbd_macro (); | |
10835 | } | |
10836 | ||
284f4730 JB |
10837 | update_mode_lines++; |
10838 | ||
24597608 | 10839 | Vunread_command_events = Qnil; |
86e5706b | 10840 | unread_command_char = -1; |
284f4730 JB |
10841 | |
10842 | discard_tty_input (); | |
10843 | ||
7ee32cda | 10844 | kbd_fetch_ptr = kbd_store_ptr; |
284f4730 JB |
10845 | input_pending = 0; |
10846 | ||
10847 | return Qnil; | |
10848 | } | |
10849 | \f | |
10850 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10851 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10852 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10853 | control, run a subshell instead. | |
10854 | ||
10855 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10856 | to be read as terminal input by Emacs's parent, after suspension. | |
10857 | ||
10858 | Before suspending, run the normal hook `suspend-hook'. | |
10859 | After resumption run the normal hook `suspend-resume-hook'. | |
10860 | ||
10861 | Some operating systems cannot stop the Emacs process and resume it later. | |
10862 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10863 | (stuffstring) | |
284f4730 JB |
10864 | Lisp_Object stuffstring; |
10865 | { | |
aed13378 | 10866 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10867 | int old_height, old_width; |
10868 | int width, height; | |
03cee6ae | 10869 | struct gcpro gcpro1; |
284f4730 | 10870 | |
9628b887 | 10871 | if (tty_list && tty_list->next) |
4a933ef8 | 10872 | error ("There are other tty frames open; close them before suspending Emacs"); |
3b7fbceb | 10873 | |
284f4730 | 10874 | if (!NILP (stuffstring)) |
b7826503 | 10875 | CHECK_STRING (stuffstring); |
284f4730 | 10876 | |
1e95ed28 JB |
10877 | /* Run the functions in suspend-hook. */ |
10878 | if (!NILP (Vrun_hooks)) | |
10879 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10880 | |
b7d2ebbf | 10881 | GCPRO1 (stuffstring); |
0b0d3e0b | 10882 | get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height); |
28d440ab | 10883 | reset_all_sys_modes (); |
284f4730 JB |
10884 | /* sys_suspend can get an error if it tries to fork a subshell |
10885 | and the system resources aren't available for that. */ | |
017bbc62 | 10886 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_all_sys_modes, |
d52a7a92 | 10887 | Qnil); |
284f4730 | 10888 | stuff_buffered_input (stuffstring); |
8026024c KH |
10889 | if (cannot_suspend) |
10890 | sys_subshell (); | |
10891 | else | |
10892 | sys_suspend (); | |
284f4730 JB |
10893 | unbind_to (count, Qnil); |
10894 | ||
10895 | /* Check if terminal/window size has changed. | |
10896 | Note that this is not useful when we are running directly | |
10897 | with a window system; but suspend should be disabled in that case. */ | |
0b0d3e0b | 10898 | get_tty_size (fileno (CURTTY ()->input), &width, &height); |
284f4730 | 10899 | if (width != old_width || height != old_height) |
788f89eb | 10900 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10901 | |
1e95ed28 | 10902 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10903 | if (!NILP (Vrun_hooks)) |
10904 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10905 | |
284f4730 JB |
10906 | UNGCPRO; |
10907 | return Qnil; | |
10908 | } | |
10909 | ||
10910 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10911 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10912 | |
07a59269 | 10913 | void |
284f4730 JB |
10914 | stuff_buffered_input (stuffstring) |
10915 | Lisp_Object stuffstring; | |
10916 | { | |
0c1c1b93 | 10917 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10918 | register unsigned char *p; |
612b78ef | 10919 | |
8c18cbfb | 10920 | if (STRINGP (stuffstring)) |
284f4730 JB |
10921 | { |
10922 | register int count; | |
10923 | ||
d5db4077 KR |
10924 | p = SDATA (stuffstring); |
10925 | count = SBYTES (stuffstring); | |
284f4730 JB |
10926 | while (count-- > 0) |
10927 | stuff_char (*p++); | |
10928 | stuff_char ('\n'); | |
10929 | } | |
c60ee5e7 | 10930 | |
284f4730 | 10931 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10932 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10933 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10934 | |
0c1c1b93 RS |
10935 | rms: we should stuff everything back into the kboard |
10936 | it came from. */ | |
beecf6a1 | 10937 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10938 | { |
c60ee5e7 | 10939 | |
beecf6a1 KH |
10940 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10941 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10942 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10943 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10944 | |
6b61353c | 10945 | clear_event (kbd_fetch_ptr); |
284f4730 | 10946 | } |
c60ee5e7 | 10947 | |
284f4730 | 10948 | input_pending = 0; |
0c1c1b93 | 10949 | #endif /* SIGTSTP */ |
284f4730 JB |
10950 | } |
10951 | \f | |
dfcf069d | 10952 | void |
ffd56f97 JB |
10953 | set_waiting_for_input (time_to_clear) |
10954 | EMACS_TIME *time_to_clear; | |
284f4730 | 10955 | { |
ffd56f97 | 10956 | input_available_clear_time = time_to_clear; |
284f4730 | 10957 | |
114a8b8c | 10958 | /* Tell handle_interrupt to throw back to read_char, */ |
284f4730 JB |
10959 | waiting_for_input = 1; |
10960 | ||
114a8b8c | 10961 | /* If handle_interrupt was called before and buffered a C-g, |
284f4730 JB |
10962 | make it run again now, to avoid timing error. */ |
10963 | if (!NILP (Vquit_flag)) | |
10964 | quit_throw_to_read_char (); | |
284f4730 JB |
10965 | } |
10966 | ||
07a59269 | 10967 | void |
284f4730 JB |
10968 | clear_waiting_for_input () |
10969 | { | |
114a8b8c | 10970 | /* Tell handle_interrupt not to throw back to read_char, */ |
284f4730 | 10971 | waiting_for_input = 0; |
ffd56f97 | 10972 | input_available_clear_time = 0; |
284f4730 JB |
10973 | } |
10974 | ||
da8e1115 | 10975 | /* The SIGINT handler. |
284f4730 | 10976 | |
e72cf5ee KL |
10977 | If we have a frame on the controlling tty, we assume that the |
10978 | SIGINT was generated by C-g, so we call handle_interrupt. | |
10979 | Otherwise, the handler kills Emacs. */ | |
284f4730 | 10980 | |
14e40288 | 10981 | static SIGTYPE |
91c049d4 RS |
10982 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10983 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 10984 | { |
284f4730 JB |
10985 | /* Must preserve main program's value of errno. */ |
10986 | int old_errno = errno; | |
6ed8eeff | 10987 | struct terminal *terminal; |
284f4730 | 10988 | |
5970a8cb | 10989 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7b00d185 KL |
10990 | /* USG systems forget handlers when they are used; |
10991 | must reestablish each time */ | |
10992 | signal (SIGINT, interrupt_signal); | |
10993 | signal (SIGQUIT, interrupt_signal); | |
284f4730 JB |
10994 | #endif /* USG */ |
10995 | ||
333f1b6f | 10996 | SIGNAL_THREAD_CHECK (signalnum); |
e72cf5ee | 10997 | |
6ed8eeff | 10998 | /* See if we have an active terminal on our controlling tty. */ |
fdf5ebde | 10999 | terminal = get_named_tty ("/dev/tty"); |
6ed8eeff | 11000 | if (!terminal) |
3224dac1 | 11001 | { |
4ca927b4 KL |
11002 | /* If there are no frames there, let's pretend that we are a |
11003 | well-behaving UN*X program and quit. */ | |
b3e6f69c | 11004 | Fkill_emacs (Qnil); |
3224dac1 | 11005 | } |
4ca927b4 KL |
11006 | else |
11007 | { | |
11008 | /* Otherwise, the SIGINT was probably generated by C-g. */ | |
3b7fbceb | 11009 | |
4ca927b4 KL |
11010 | /* Set internal_last_event_frame to the top frame of the |
11011 | controlling tty, if we have a frame there. We disable the | |
11012 | interrupt key on secondary ttys, so the SIGINT must have come | |
11013 | from the controlling tty. */ | |
6ed8eeff | 11014 | internal_last_event_frame = terminal->display_info.tty->top_frame; |
4ca927b4 KL |
11015 | |
11016 | handle_interrupt (); | |
4ca927b4 | 11017 | } |
114a8b8c KL |
11018 | |
11019 | errno = old_errno; | |
11020 | } | |
11021 | ||
da8e1115 | 11022 | /* This routine is called at interrupt level in response to C-g. |
3b7fbceb | 11023 | |
da8e1115 KL |
11024 | It is called from the SIGINT handler or kbd_buffer_store_event. |
11025 | ||
11026 | If `waiting_for_input' is non zero, then unless `echoing' is | |
11027 | nonzero, immediately throw back to read_char. | |
11028 | ||
11029 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes | |
11030 | eval to throw, when it gets a chance. If quit-flag is already | |
11031 | non-nil, it stops the job right away. */ | |
114a8b8c | 11032 | |
114a8b8c KL |
11033 | static void |
11034 | handle_interrupt () | |
11035 | { | |
3b7fbceb | 11036 | char c; |
114a8b8c | 11037 | |
284f4730 JB |
11038 | cancel_echoing (); |
11039 | ||
3224dac1 | 11040 | /* XXX This code needs to be revised for multi-tty support. */ |
d44004c0 | 11041 | if (!NILP (Vquit_flag) && get_named_tty ("/dev/tty")) |
284f4730 | 11042 | { |
31e4e97b EZ |
11043 | /* If SIGINT isn't blocked, don't let us be interrupted by |
11044 | another SIGINT, it might be harmful due to non-reentrancy | |
11045 | in I/O functions. */ | |
11046 | sigblock (sigmask (SIGINT)); | |
11047 | ||
284f4730 | 11048 | fflush (stdout); |
28d440ab | 11049 | reset_all_sys_modes (); |
31e4e97b | 11050 | |
284f4730 JB |
11051 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
11052 | /* | |
11053 | * On systems which can suspend the current process and return to the original | |
11054 | * shell, this command causes the user to end up back at the shell. | |
11055 | * The "Auto-save" and "Abort" questions are not asked until | |
11056 | * the user elects to return to emacs, at which point he can save the current | |
11057 | * job and either dump core or continue. | |
11058 | */ | |
11059 | sys_suspend (); | |
11060 | #else | |
284f4730 JB |
11061 | /* Perhaps should really fork an inferior shell? |
11062 | But that would not provide any way to get back | |
11063 | to the original shell, ever. */ | |
11064 | printf ("No support for stopping a process on this operating system;\n"); | |
11065 | printf ("you can continue or abort.\n"); | |
284f4730 | 11066 | #endif /* not SIGTSTP */ |
80e4aa30 RS |
11067 | #ifdef MSDOS |
11068 | /* We must remain inside the screen area when the internal terminal | |
11069 | is used. Note that [Enter] is not echoed by dos. */ | |
cb22456d | 11070 | cursor_to (SELECTED_FRAME (), 0, 0); |
80e4aa30 | 11071 | #endif |
118d6ca9 RS |
11072 | /* It doesn't work to autosave while GC is in progress; |
11073 | the code used for auto-saving doesn't cope with the mark bit. */ | |
11074 | if (!gc_in_progress) | |
9fd7d808 | 11075 | { |
118d6ca9 RS |
11076 | printf ("Auto-save? (y or n) "); |
11077 | fflush (stdout); | |
11078 | if (((c = getchar ()) & ~040) == 'Y') | |
11079 | { | |
11080 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 11081 | #ifdef MSDOS |
118d6ca9 | 11082 | printf ("\r\nAuto-save done"); |
80e4aa30 | 11083 | #else /* not MSDOS */ |
118d6ca9 | 11084 | printf ("Auto-save done\n"); |
80e4aa30 | 11085 | #endif /* not MSDOS */ |
118d6ca9 RS |
11086 | } |
11087 | while (c != '\n') c = getchar (); | |
9fd7d808 | 11088 | } |
c60ee5e7 | 11089 | else |
118d6ca9 RS |
11090 | { |
11091 | /* During GC, it must be safe to reenable quitting again. */ | |
11092 | Vinhibit_quit = Qnil; | |
11093 | #ifdef MSDOS | |
11094 | printf ("\r\n"); | |
11095 | #endif /* not MSDOS */ | |
11096 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
11097 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
11098 | fflush (stdout); | |
11099 | } | |
11100 | ||
80e4aa30 RS |
11101 | #ifdef MSDOS |
11102 | printf ("\r\nAbort? (y or n) "); | |
11103 | #else /* not MSDOS */ | |
284f4730 | 11104 | printf ("Abort (and dump core)? (y or n) "); |
80e4aa30 | 11105 | #endif /* not MSDOS */ |
284f4730 JB |
11106 | fflush (stdout); |
11107 | if (((c = getchar ()) & ~040) == 'Y') | |
11108 | abort (); | |
11109 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
11110 | #ifdef MSDOS |
11111 | printf ("\r\nContinuing...\r\n"); | |
11112 | #else /* not MSDOS */ | |
284f4730 | 11113 | printf ("Continuing...\n"); |
80e4aa30 | 11114 | #endif /* not MSDOS */ |
284f4730 | 11115 | fflush (stdout); |
28d440ab | 11116 | init_all_sys_modes (); |
31e4e97b | 11117 | sigfree (); |
284f4730 JB |
11118 | } |
11119 | else | |
11120 | { | |
11121 | /* If executing a function that wants to be interrupted out of | |
11122 | and the user has not deferred quitting by binding `inhibit-quit' | |
11123 | then quit right away. */ | |
11124 | if (immediate_quit && NILP (Vinhibit_quit)) | |
11125 | { | |
e39da3d7 RS |
11126 | struct gl_state_s saved; |
11127 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
11128 | ||
284f4730 JB |
11129 | immediate_quit = 0; |
11130 | sigfree (); | |
e39da3d7 RS |
11131 | saved = gl_state; |
11132 | GCPRO4 (saved.object, saved.global_code, | |
11133 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 11134 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
11135 | gl_state = saved; |
11136 | UNGCPRO; | |
284f4730 JB |
11137 | } |
11138 | else | |
11139 | /* Else request quit when it's safe */ | |
11140 | Vquit_flag = Qt; | |
11141 | } | |
11142 | ||
8ad093db AR |
11143 | /* TODO: The longjmp in this call throws the NS event loop integration off, |
11144 | and it seems to do fine without this. Probably some attention | |
11145 | needs to be paid to the setting of waiting_for_input in | |
11146 | wait_reading_process_output() under HAVE_NS because of the call | |
11147 | to ns_select there (needed because otherwise events aren't picked up | |
11148 | outside of polling since we don't get SIGIO like X and we don't have a | |
11149 | separate event loop thread like W32. */ | |
11150 | #ifndef HAVE_NS | |
284f4730 | 11151 | if (waiting_for_input && !echoing) |
4ca927b4 | 11152 | quit_throw_to_read_char (); |
8ad093db | 11153 | #endif |
284f4730 JB |
11154 | } |
11155 | ||
11156 | /* Handle a C-g by making read_char return C-g. */ | |
11157 | ||
07a59269 | 11158 | void |
284f4730 JB |
11159 | quit_throw_to_read_char () |
11160 | { | |
284f4730 JB |
11161 | sigfree (); |
11162 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 11163 | clear_waiting_for_input (); |
284f4730 JB |
11164 | input_pending = 0; |
11165 | ||
24597608 | 11166 | Vunread_command_events = Qnil; |
86e5706b | 11167 | unread_command_char = -1; |
284f4730 | 11168 | |
087feab3 RS |
11169 | #if 0 /* Currently, sit_for is called from read_char without turning |
11170 | off polling. And that can call set_waiting_for_input. | |
11171 | It seems to be harmless. */ | |
e6b01c14 JB |
11172 | #ifdef POLL_FOR_INPUT |
11173 | /* May be > 1 if in recursive minibuffer. */ | |
11174 | if (poll_suppress_count == 0) | |
11175 | abort (); | |
11176 | #endif | |
087feab3 | 11177 | #endif |
4c52b668 | 11178 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 11179 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 11180 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
e630dfc6 | 11181 | 0, 0, Qnil); |
e6b01c14 | 11182 | |
284f4730 JB |
11183 | _longjmp (getcjmp, 1); |
11184 | } | |
11185 | \f | |
a712a8c3 KL |
11186 | DEFUN ("set-input-interrupt-mode", Fset_input_interrupt_mode, Sset_input_interrupt_mode, 1, 1, 0, |
11187 | doc: /* Set interrupt mode of reading keyboard input. | |
11188 | If INTERRUPT is non-nil, Emacs will use input interrupts; | |
11189 | otherwise Emacs uses CBREAK mode. | |
11190 | ||
4707d2d0 | 11191 | See also `current-input-mode'. */) |
a712a8c3 KL |
11192 | (interrupt) |
11193 | Lisp_Object interrupt; | |
284f4730 | 11194 | { |
a712a8c3 | 11195 | int new_interrupt_input; |
284f4730 JB |
11196 | #ifdef SIGIO |
11197 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4beb2d71 | 11198 | #ifdef HAVE_X_WINDOWS |
6bbba5a6 | 11199 | if (x_display_list != NULL) |
9a0f60bb KH |
11200 | { |
11201 | /* When using X, don't give the user a real choice, | |
11202 | because we haven't implemented the mechanisms to support it. */ | |
11203 | #ifdef NO_SOCK_SIGIO | |
a712a8c3 | 11204 | new_interrupt_input = 0; |
9a0f60bb | 11205 | #else /* not NO_SOCK_SIGIO */ |
a712a8c3 | 11206 | new_interrupt_input = 1; |
284f4730 | 11207 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
11208 | } |
11209 | else | |
8ad093db | 11210 | #endif /* HAVE_X_WINDOWS */ |
a712a8c3 | 11211 | new_interrupt_input = !NILP (interrupt); |
284f4730 | 11212 | #else /* not SIGIO */ |
a712a8c3 | 11213 | new_interrupt_input = 0; |
284f4730 | 11214 | #endif /* not SIGIO */ |
9a0f60bb | 11215 | |
033b73e2 | 11216 | if (new_interrupt_input != interrupt_input) |
a712a8c3 KL |
11217 | { |
11218 | #ifdef POLL_FOR_INPUT | |
11219 | stop_polling (); | |
11220 | #endif | |
11221 | #ifndef DOS_NT | |
11222 | /* this causes startup screen to be restored and messes with the mouse */ | |
11223 | reset_all_sys_modes (); | |
11224 | #endif | |
11225 | interrupt_input = new_interrupt_input; | |
11226 | #ifndef DOS_NT | |
11227 | init_all_sys_modes (); | |
284f4730 | 11228 | #endif |
9a0f60bb | 11229 | |
a712a8c3 KL |
11230 | #ifdef POLL_FOR_INPUT |
11231 | poll_suppress_count = 1; | |
11232 | start_polling (); | |
11233 | #endif | |
11234 | } | |
11235 | return Qnil; | |
11236 | } | |
6bbba5a6 | 11237 | |
a712a8c3 KL |
11238 | DEFUN ("set-output-flow-control", Fset_output_flow_control, Sset_output_flow_control, 1, 2, 0, |
11239 | doc: /* Enable or disable ^S/^Q flow control for output to TERMINAL. | |
11240 | If FLOW is non-nil, flow control is enabled and you cannot use C-s or | |
11241 | C-q in key sequences. | |
11242 | ||
6ed8eeff | 11243 | This setting only has an effect on tty terminals and only when |
a712a8c3 KL |
11244 | Emacs reads input in CBREAK mode; see `set-input-interrupt-mode'. |
11245 | ||
11246 | See also `current-input-mode'. */) | |
11247 | (flow, terminal) | |
11248 | Lisp_Object flow, terminal; | |
11249 | { | |
6ed8eeff | 11250 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 | 11251 | struct tty_display_info *tty; |
d44004c0 | 11252 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11253 | return Qnil; |
6ed8eeff | 11254 | tty = t->display_info.tty; |
a712a8c3 KL |
11255 | |
11256 | if (tty->flow_control != !NILP (flow)) | |
daf01701 | 11257 | { |
a712a8c3 KL |
11258 | #ifndef DOS_NT |
11259 | /* this causes startup screen to be restored and messes with the mouse */ | |
11260 | reset_sys_modes (tty); | |
11261 | #endif | |
11262 | ||
daf01701 | 11263 | tty->flow_control = !NILP (flow); |
a712a8c3 KL |
11264 | |
11265 | #ifndef DOS_NT | |
11266 | init_sys_modes (tty); | |
11267 | #endif | |
daf01701 | 11268 | } |
ed8dad6b | 11269 | return Qnil; |
a712a8c3 KL |
11270 | } |
11271 | ||
11272 | DEFUN ("set-input-meta-mode", Fset_input_meta_mode, Sset_input_meta_mode, 1, 2, 0, | |
11273 | doc: /* Enable or disable 8-bit input on TERMINAL. | |
11274 | If META is t, Emacs will accept 8-bit input, and interpret the 8th | |
11275 | bit as the Meta modifier. | |
11276 | ||
11277 | If META is nil, Emacs will ignore the top bit, on the assumption it is | |
11278 | parity. | |
11279 | ||
11280 | Otherwise, Emacs will accept and pass through 8-bit input without | |
11281 | specially interpreting the top bit. | |
11282 | ||
6ed8eeff | 11283 | This setting only has an effect on tty terminal devices. |
3b7fbceb | 11284 | |
6ed8eeff | 11285 | Optional parameter TERMINAL specifies the tty terminal device to use. |
a712a8c3 KL |
11286 | It may be a terminal id, a frame, or nil for the terminal used by the |
11287 | currently selected frame. | |
11288 | ||
11289 | See also `current-input-mode'. */) | |
11290 | (meta, terminal) | |
11291 | Lisp_Object meta, terminal; | |
11292 | { | |
6ed8eeff | 11293 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 KL |
11294 | struct tty_display_info *tty; |
11295 | int new_meta; | |
033b73e2 | 11296 | |
d44004c0 | 11297 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11298 | return Qnil; |
6ed8eeff | 11299 | tty = t->display_info.tty; |
a712a8c3 | 11300 | |
b04904fb | 11301 | if (NILP (meta)) |
a712a8c3 | 11302 | new_meta = 0; |
b04904fb | 11303 | else if (EQ (meta, Qt)) |
a712a8c3 | 11304 | new_meta = 1; |
b04904fb | 11305 | else |
a712a8c3 | 11306 | new_meta = 2; |
284f4730 | 11307 | |
033b73e2 | 11308 | if (tty->meta_key != new_meta) |
a712a8c3 | 11309 | { |
07de30b9 | 11310 | #ifndef DOS_NT |
a712a8c3 KL |
11311 | /* this causes startup screen to be restored and messes with the mouse */ |
11312 | reset_sys_modes (tty); | |
2ee250ec | 11313 | #endif |
34f04431 | 11314 | |
a712a8c3 | 11315 | tty->meta_key = new_meta; |
033b73e2 | 11316 | |
a712a8c3 KL |
11317 | #ifndef DOS_NT |
11318 | init_sys_modes (tty); | |
34f04431 | 11319 | #endif |
a712a8c3 KL |
11320 | } |
11321 | return Qnil; | |
11322 | } | |
11323 | ||
11324 | DEFUN ("set-quit-char", Fset_quit_char, Sset_quit_char, 1, 1, 0, | |
11325 | doc: /* Specify character used for quitting. | |
11326 | QUIT must be an ASCII character. | |
11327 | ||
fdf5ebde KL |
11328 | This function only has an effect on the controlling tty of the Emacs |
11329 | process. | |
a712a8c3 KL |
11330 | |
11331 | See also `current-input-mode'. */) | |
11332 | (quit) | |
11333 | Lisp_Object quit; | |
11334 | { | |
fdf5ebde | 11335 | struct terminal *t = get_named_tty ("/dev/tty"); |
a712a8c3 | 11336 | struct tty_display_info *tty; |
d44004c0 | 11337 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11338 | return Qnil; |
6ed8eeff | 11339 | tty = t->display_info.tty; |
a712a8c3 | 11340 | |
6213d5b3 KL |
11341 | if (NILP (quit) || !INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400) |
11342 | error ("QUIT must be an ASCII character"); | |
11343 | ||
a712a8c3 KL |
11344 | #ifndef DOS_NT |
11345 | /* this causes startup screen to be restored and messes with the mouse */ | |
11346 | reset_sys_modes (tty); | |
11347 | #endif | |
033b73e2 | 11348 | |
a712a8c3 KL |
11349 | /* Don't let this value be out of range. */ |
11350 | quit_char = XINT (quit) & (tty->meta_key == 0 ? 0177 : 0377); | |
11351 | ||
11352 | #ifndef DOS_NT | |
11353 | init_sys_modes (tty); | |
34f04431 | 11354 | #endif |
a712a8c3 KL |
11355 | |
11356 | return Qnil; | |
11357 | } | |
033b73e2 | 11358 | |
a712a8c3 KL |
11359 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, |
11360 | doc: /* Set mode of reading keyboard input. | |
11361 | First arg INTERRUPT non-nil means use input interrupts; | |
11362 | nil means use CBREAK mode. | |
11363 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
11364 | (no effect except in CBREAK mode). | |
11365 | Third arg META t means accept 8-bit input (for a Meta key). | |
11366 | META nil means ignore the top bit, on the assumption it is parity. | |
11367 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
11368 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
11369 | See also `current-input-mode'. */) | |
11370 | (interrupt, flow, meta, quit) | |
11371 | Lisp_Object interrupt, flow, meta, quit; | |
11372 | { | |
11373 | Fset_input_interrupt_mode (interrupt); | |
11374 | Fset_output_flow_control (flow, Qnil); | |
11375 | Fset_input_meta_mode (meta, Qnil); | |
0a42be6d RF |
11376 | if (!NILP (quit)) |
11377 | Fset_quit_char (quit); | |
284f4730 JB |
11378 | return Qnil; |
11379 | } | |
80645119 JB |
11380 | |
11381 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
11382 | doc: /* Return information about the way Emacs currently reads keyboard input. |
11383 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
11384 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
11385 | nil, Emacs is using CBREAK mode. | |
11386 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
11387 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
11388 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
11389 | META nil means ignoring the top bit, on the assumption it is parity. | |
11390 | META is neither t nor nil if accepting 8-bit input and using | |
11391 | all 8 bits as the character code. | |
11392 | QUIT is the character Emacs currently uses to quit. | |
11393 | The elements of this list correspond to the arguments of | |
11394 | `set-input-mode'. */) | |
11395 | () | |
80645119 JB |
11396 | { |
11397 | Lisp_Object val[4]; | |
daf01701 | 11398 | struct frame *sf = XFRAME (selected_frame); |
80645119 JB |
11399 | |
11400 | val[0] = interrupt_input ? Qt : Qnil; | |
d44004c0 | 11401 | if (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf)) |
daf01701 KL |
11402 | { |
11403 | val[1] = FRAME_TTY (sf)->flow_control ? Qt : Qnil; | |
c3b4957f KL |
11404 | val[2] = (FRAME_TTY (sf)->meta_key == 2 |
11405 | ? make_number (0) | |
11406 | : (CURTTY ()->meta_key == 1 ? Qt : Qnil)); | |
daf01701 KL |
11407 | } |
11408 | else | |
11409 | { | |
11410 | val[1] = Qnil; | |
11411 | val[2] = Qt; | |
11412 | } | |
bb9e9bed | 11413 | XSETFASTINT (val[3], quit_char); |
80645119 | 11414 | |
bf673a7a | 11415 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
11416 | } |
11417 | ||
a25f766a | 11418 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
11419 | doc: /* Return position information for pixel coordinates X and Y. |
11420 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 11421 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
11422 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
11423 | edge of the window. | |
ec026e7a KS |
11424 | |
11425 | The return value is similar to a mouse click position: | |
11426 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11427 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
11428 | The `posn-' functions access elements of such lists. */) | |
a25f766a KS |
11429 | (x, y, frame_or_window, whole) |
11430 | Lisp_Object x, y, frame_or_window, whole; | |
ec026e7a | 11431 | { |
f4a5a485 SM |
11432 | CHECK_NATNUM (x); |
11433 | CHECK_NATNUM (y); | |
11434 | ||
ec026e7a KS |
11435 | if (NILP (frame_or_window)) |
11436 | frame_or_window = selected_window; | |
11437 | ||
11438 | if (WINDOWP (frame_or_window)) | |
11439 | { | |
11440 | struct window *w; | |
11441 | ||
11442 | CHECK_LIVE_WINDOW (frame_or_window); | |
11443 | ||
11444 | w = XWINDOW (frame_or_window); | |
6507c4c7 KS |
11445 | XSETINT (x, (XINT (x) |
11446 | + WINDOW_LEFT_EDGE_X (w) | |
a25f766a KS |
11447 | + (NILP (whole) |
11448 | ? window_box_left_offset (w, TEXT_AREA) | |
6507c4c7 | 11449 | : 0))); |
ec026e7a KS |
11450 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
11451 | frame_or_window = w->frame; | |
11452 | } | |
11453 | ||
11454 | CHECK_LIVE_FRAME (frame_or_window); | |
11455 | ||
11456 | return make_lispy_position (XFRAME (frame_or_window), &x, &y, 0); | |
11457 | } | |
11458 | ||
11459 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
11460 | doc: /* Return position information for buffer POS in WINDOW. | |
11461 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
11462 | ||
11463 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 11464 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
11465 | a mouse click at the upper left corner of the glyph corresponding |
11466 | to the given buffer position: | |
11467 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11468 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 11469 | The `posn-' functions access elements of such lists. */) |
ec026e7a KS |
11470 | (pos, window) |
11471 | Lisp_Object pos, window; | |
11472 | { | |
11473 | Lisp_Object tem; | |
11474 | ||
6507c4c7 KS |
11475 | if (NILP (window)) |
11476 | window = selected_window; | |
11477 | ||
ec026e7a KS |
11478 | tem = Fpos_visible_in_window_p (pos, window, Qt); |
11479 | if (!NILP (tem)) | |
6507c4c7 KS |
11480 | { |
11481 | Lisp_Object x = XCAR (tem); | |
11482 | Lisp_Object y = XCAR (XCDR (tem)); | |
11483 | ||
11484 | /* Point invisible due to hscrolling? */ | |
11485 | if (XINT (x) < 0) | |
11486 | return Qnil; | |
11487 | tem = Fposn_at_x_y (x, y, window, Qnil); | |
11488 | } | |
11489 | ||
ec026e7a KS |
11490 | return tem; |
11491 | } | |
11492 | ||
284f4730 | 11493 | \f |
6c6083a9 | 11494 | /* |
c5fdd383 | 11495 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
11496 | */ |
11497 | void | |
c5fdd383 KH |
11498 | init_kboard (kb) |
11499 | KBOARD *kb; | |
6c6083a9 | 11500 | { |
217258d5 | 11501 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 11502 | kb->Vlast_command = Qnil; |
75045dcb | 11503 | kb->Vreal_last_command = Qnil; |
2e478293 | 11504 | kb->Vkeyboard_translate_table = Qnil; |
d0d3a311 | 11505 | kb->Vlast_repeatable_command = Qnil; |
d8bcf58e | 11506 | kb->Vprefix_arg = Qnil; |
75045dcb | 11507 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
11508 | kb->kbd_queue = Qnil; |
11509 | kb->kbd_queue_has_data = 0; | |
11510 | kb->immediate_echo = 0; | |
678e9d18 | 11511 | kb->echo_string = Qnil; |
c5fdd383 KH |
11512 | kb->echo_after_prompt = -1; |
11513 | kb->kbd_macro_buffer = 0; | |
11514 | kb->kbd_macro_bufsize = 0; | |
11515 | kb->defining_kbd_macro = Qnil; | |
11516 | kb->Vlast_kbd_macro = Qnil; | |
11517 | kb->reference_count = 0; | |
7c97ffdc | 11518 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 11519 | kb->system_key_syms = Qnil; |
70b8d0a4 | 11520 | kb->Vwindow_system = Qt; /* Unset. */ |
4f4a84ec | 11521 | kb->Vinput_decode_map = Fmake_sparse_keymap (Qnil); |
ac09dc1e KL |
11522 | kb->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
11523 | Fset_keymap_parent (kb->Vlocal_function_key_map, Vfunction_key_map); | |
9ba47203 | 11524 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
11525 | } |
11526 | ||
11527 | /* | |
c5fdd383 | 11528 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 11529 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
11530 | * it a second time. |
11531 | */ | |
e50b8090 | 11532 | static void |
c5fdd383 KH |
11533 | wipe_kboard (kb) |
11534 | KBOARD *kb; | |
6c6083a9 | 11535 | { |
70fdbb46 | 11536 | xfree (kb->kbd_macro_buffer); |
6c6083a9 KH |
11537 | } |
11538 | ||
a122a38e GM |
11539 | /* Free KB and memory referenced from it. */ |
11540 | ||
e50b8090 KH |
11541 | void |
11542 | delete_kboard (kb) | |
a122a38e | 11543 | KBOARD *kb; |
e50b8090 KH |
11544 | { |
11545 | KBOARD **kbp; | |
c60ee5e7 | 11546 | |
e50b8090 KH |
11547 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
11548 | if (*kbp == NULL) | |
11549 | abort (); | |
11550 | *kbp = kb->next_kboard; | |
a122a38e GM |
11551 | |
11552 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
11553 | if (kb == current_kboard |
11554 | && FRAMEP (selected_frame) | |
11555 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 11556 | { |
b3e6f69c KL |
11557 | current_kboard = FRAME_KBOARD (XFRAME (selected_frame)); |
11558 | single_kboard = 0; | |
a122a38e GM |
11559 | if (current_kboard == kb) |
11560 | abort (); | |
11561 | } | |
c60ee5e7 | 11562 | |
e50b8090 KH |
11563 | wipe_kboard (kb); |
11564 | xfree (kb); | |
11565 | } | |
a122a38e | 11566 | |
dfcf069d | 11567 | void |
284f4730 JB |
11568 | init_keyboard () |
11569 | { | |
284f4730 JB |
11570 | /* This is correct before outermost invocation of the editor loop */ |
11571 | command_loop_level = -1; | |
11572 | immediate_quit = 0; | |
11573 | quit_char = Ctl ('g'); | |
24597608 | 11574 | Vunread_command_events = Qnil; |
86e5706b | 11575 | unread_command_char = -1; |
87dd9b9b | 11576 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 11577 | total_keys = 0; |
9deb415a | 11578 | recent_keys_index = 0; |
beecf6a1 KH |
11579 | kbd_fetch_ptr = kbd_buffer; |
11580 | kbd_store_ptr = kbd_buffer; | |
ae372f41 | 11581 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a9d77f1f | 11582 | do_mouse_tracking = Qnil; |
2eb6bfbe | 11583 | #endif |
284f4730 | 11584 | input_pending = 0; |
4c180390 JD |
11585 | interrupt_input_blocked = 0; |
11586 | interrupt_input_pending = 0; | |
07a1e794 | 11587 | #ifdef SYNC_INPUT |
ceb18827 | 11588 | pending_signals = 0; |
07a1e794 | 11589 | #endif |
284f4730 | 11590 | |
4c52b668 KH |
11591 | /* This means that command_loop_1 won't try to select anything the first |
11592 | time through. */ | |
11593 | internal_last_event_frame = Qnil; | |
11594 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 11595 | |
aaca43a1 | 11596 | current_kboard = initial_kboard; |
1bc973c2 | 11597 | /* Re-initialize the keyboard again. */ |
aaca43a1 | 11598 | wipe_kboard (current_kboard); |
c5fdd383 | 11599 | init_kboard (current_kboard); |
1bc973c2 SM |
11600 | /* A value of nil for Vwindow_system normally means a tty, but we also use |
11601 | it for the initial terminal since there is no window system there. */ | |
11602 | current_kboard->Vwindow_system = Qnil; | |
07d2b8de | 11603 | |
7b00d185 | 11604 | if (!noninteractive) |
284f4730 | 11605 | { |
3224dac1 KL |
11606 | /* Before multi-tty support, these handlers used to be installed |
11607 | only if the current session was a tty session. Now an Emacs | |
11608 | session may have multiple display types, so we always handle | |
11609 | SIGINT. There is special code in interrupt_signal to exit | |
4ca927b4 KL |
11610 | Emacs on SIGINT when there are no termcap frames on the |
11611 | controlling terminal. */ | |
284f4730 | 11612 | signal (SIGINT, interrupt_signal); |
cb5df6ae | 11613 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
11614 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
11615 | SIGQUIT and we can't tell which one it will give us. */ | |
11616 | signal (SIGQUIT, interrupt_signal); | |
11617 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 11618 | } |
284f4730 JB |
11619 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
11620 | #ifdef SIGIO | |
7a80a6f6 RS |
11621 | if (!noninteractive) |
11622 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 11623 | #endif /* SIGIO */ |
284f4730 JB |
11624 | |
11625 | /* Use interrupt input by default, if it works and noninterrupt input | |
11626 | has deficiencies. */ | |
11627 | ||
11628 | #ifdef INTERRUPT_INPUT | |
11629 | interrupt_input = 1; | |
11630 | #else | |
11631 | interrupt_input = 0; | |
11632 | #endif | |
11633 | ||
284f4730 JB |
11634 | sigfree (); |
11635 | dribble = 0; | |
11636 | ||
11637 | if (keyboard_init_hook) | |
11638 | (*keyboard_init_hook) (); | |
11639 | ||
11640 | #ifdef POLL_FOR_INPUT | |
11641 | poll_suppress_count = 1; | |
11642 | start_polling (); | |
11643 | #endif | |
11644 | } | |
11645 | ||
df0f2ba1 | 11646 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
11647 | event header symbols and put properties on them. */ |
11648 | struct event_head { | |
11649 | Lisp_Object *var; | |
11650 | char *name; | |
11651 | Lisp_Object *kind; | |
11652 | }; | |
11653 | ||
11654 | struct event_head head_table[] = { | |
7406e988 PJ |
11655 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
11656 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
11657 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
11658 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
11659 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 11660 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
11661 | /* `select-window' should be handled just like `switch-frame' |
11662 | in read_key_sequence. */ | |
11663 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
11664 | }; |
11665 | ||
dfcf069d | 11666 | void |
284f4730 JB |
11667 | syms_of_keyboard () |
11668 | { | |
58555d81 SM |
11669 | pending_funcalls = Qnil; |
11670 | ||
8e1e4240 GM |
11671 | Vlispy_mouse_stem = build_string ("mouse"); |
11672 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 11673 | |
9ea173e8 | 11674 | /* Tool-bars. */ |
7ee32cda GM |
11675 | QCimage = intern (":image"); |
11676 | staticpro (&QCimage); | |
11677 | ||
11678 | staticpro (&Qhelp_echo); | |
11679 | Qhelp_echo = intern ("help-echo"); | |
11680 | ||
cf0590c4 JD |
11681 | staticpro (&Qrtl); |
11682 | Qrtl = intern (":rtl"); | |
11683 | ||
e8886a1d RS |
11684 | staticpro (&item_properties); |
11685 | item_properties = Qnil; | |
11686 | ||
9ea173e8 GM |
11687 | staticpro (&tool_bar_item_properties); |
11688 | tool_bar_item_properties = Qnil; | |
11689 | staticpro (&tool_bar_items_vector); | |
11690 | tool_bar_items_vector = Qnil; | |
7ee32cda | 11691 | |
d5eecefb RS |
11692 | staticpro (&real_this_command); |
11693 | real_this_command = Qnil; | |
11694 | ||
d925fb39 RS |
11695 | Qtimer_event_handler = intern ("timer-event-handler"); |
11696 | staticpro (&Qtimer_event_handler); | |
11697 | ||
971e4c98 LT |
11698 | Qdisabled_command_function = intern ("disabled-command-function"); |
11699 | staticpro (&Qdisabled_command_function); | |
2e894dab | 11700 | |
284f4730 JB |
11701 | Qself_insert_command = intern ("self-insert-command"); |
11702 | staticpro (&Qself_insert_command); | |
11703 | ||
11704 | Qforward_char = intern ("forward-char"); | |
11705 | staticpro (&Qforward_char); | |
11706 | ||
11707 | Qbackward_char = intern ("backward-char"); | |
11708 | staticpro (&Qbackward_char); | |
11709 | ||
11710 | Qdisabled = intern ("disabled"); | |
11711 | staticpro (&Qdisabled); | |
11712 | ||
e58aa385 RS |
11713 | Qundefined = intern ("undefined"); |
11714 | staticpro (&Qundefined); | |
11715 | ||
86e5706b RS |
11716 | Qpre_command_hook = intern ("pre-command-hook"); |
11717 | staticpro (&Qpre_command_hook); | |
11718 | ||
11719 | Qpost_command_hook = intern ("post-command-hook"); | |
11720 | staticpro (&Qpost_command_hook); | |
11721 | ||
3ef14e46 RS |
11722 | Qdeferred_action_function = intern ("deferred-action-function"); |
11723 | staticpro (&Qdeferred_action_function); | |
11724 | ||
40932d1a RS |
11725 | Qcommand_hook_internal = intern ("command-hook-internal"); |
11726 | staticpro (&Qcommand_hook_internal); | |
11727 | ||
284f4730 JB |
11728 | Qfunction_key = intern ("function-key"); |
11729 | staticpro (&Qfunction_key); | |
13b5e56c | 11730 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 11731 | staticpro (&Qmouse_click); |
9e2a2647 | 11732 | #if defined (WINDOWSNT) |
1161d367 GV |
11733 | Qlanguage_change = intern ("language-change"); |
11734 | staticpro (&Qlanguage_change); | |
07de30b9 | 11735 | #endif |
a24dc617 RS |
11736 | Qdrag_n_drop = intern ("drag-n-drop"); |
11737 | staticpro (&Qdrag_n_drop); | |
284f4730 | 11738 | |
4ebc27a5 | 11739 | Qsave_session = intern ("save-session"); |
6e604a9b | 11740 | staticpro (&Qsave_session); |
c60ee5e7 | 11741 | |
033b73e2 MA |
11742 | #ifdef HAVE_DBUS |
11743 | Qdbus_event = intern ("dbus-event"); | |
11744 | staticpro (&Qdbus_event); | |
11745 | #endif | |
11746 | ||
598a9fa7 JB |
11747 | Qmenu_enable = intern ("menu-enable"); |
11748 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
11749 | Qmenu_alias = intern ("menu-alias"); |
11750 | staticpro (&Qmenu_alias); | |
11751 | QCenable = intern (":enable"); | |
11752 | staticpro (&QCenable); | |
11753 | QCvisible = intern (":visible"); | |
11754 | staticpro (&QCvisible); | |
7ee32cda GM |
11755 | QChelp = intern (":help"); |
11756 | staticpro (&QChelp); | |
e8886a1d RS |
11757 | QCfilter = intern (":filter"); |
11758 | staticpro (&QCfilter); | |
11759 | QCbutton = intern (":button"); | |
11760 | staticpro (&QCbutton); | |
74c1de23 RS |
11761 | QCkeys = intern (":keys"); |
11762 | staticpro (&QCkeys); | |
11763 | QCkey_sequence = intern (":key-sequence"); | |
11764 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
11765 | QCtoggle = intern (":toggle"); |
11766 | staticpro (&QCtoggle); | |
11767 | QCradio = intern (":radio"); | |
11768 | staticpro (&QCradio); | |
598a9fa7 | 11769 | |
284f4730 JB |
11770 | Qmode_line = intern ("mode-line"); |
11771 | staticpro (&Qmode_line); | |
e5d77022 JB |
11772 | Qvertical_line = intern ("vertical-line"); |
11773 | staticpro (&Qvertical_line); | |
3c370943 JB |
11774 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
11775 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
11776 | Qmenu_bar = intern ("menu-bar"); |
11777 | staticpro (&Qmenu_bar); | |
4bb994d1 | 11778 | |
ae372f41 | 11779 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
11780 | Qmouse_fixup_help_message = intern ("mouse-fixup-help-message"); |
11781 | staticpro (&Qmouse_fixup_help_message); | |
11782 | #endif | |
11783 | ||
4bb994d1 JB |
11784 | Qabove_handle = intern ("above-handle"); |
11785 | staticpro (&Qabove_handle); | |
11786 | Qhandle = intern ("handle"); | |
11787 | staticpro (&Qhandle); | |
11788 | Qbelow_handle = intern ("below-handle"); | |
11789 | staticpro (&Qbelow_handle); | |
db08707d RS |
11790 | Qup = intern ("up"); |
11791 | staticpro (&Qup); | |
11792 | Qdown = intern ("down"); | |
11793 | staticpro (&Qdown); | |
7ee32cda GM |
11794 | Qtop = intern ("top"); |
11795 | staticpro (&Qtop); | |
11796 | Qbottom = intern ("bottom"); | |
11797 | staticpro (&Qbottom); | |
11798 | Qend_scroll = intern ("end-scroll"); | |
11799 | staticpro (&Qend_scroll); | |
eef28553 SM |
11800 | Qratio = intern ("ratio"); |
11801 | staticpro (&Qratio); | |
284f4730 | 11802 | |
cd21b839 | 11803 | Qevent_kind = intern ("event-kind"); |
284f4730 | 11804 | staticpro (&Qevent_kind); |
88cb0656 JB |
11805 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
11806 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
11807 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
11808 | staticpro (&Qevent_symbol_element_mask); | |
11809 | Qmodifier_cache = intern ("modifier-cache"); | |
11810 | staticpro (&Qmodifier_cache); | |
284f4730 | 11811 | |
48e416d4 RS |
11812 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
11813 | staticpro (&Qrecompute_lucid_menubar); | |
11814 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
11815 | staticpro (&Qactivate_menubar_hook); | |
11816 | ||
f4eef8b4 RS |
11817 | Qpolling_period = intern ("polling-period"); |
11818 | staticpro (&Qpolling_period); | |
11819 | ||
7d18f9ae RS |
11820 | Qinput_method_function = intern ("input-method-function"); |
11821 | staticpro (&Qinput_method_function); | |
11822 | ||
d5eecefb RS |
11823 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
11824 | staticpro (&Qinput_method_exit_on_first_char); | |
11825 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
11826 | staticpro (&Qinput_method_use_echo_area); | |
11827 | ||
11828 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
11829 | Fset (Qinput_method_use_echo_area, Qnil); | |
11830 | ||
e18dfbf4 | 11831 | last_point_position_buffer = Qnil; |
bb0e1d19 | 11832 | last_point_position_window = Qnil; |
e18dfbf4 | 11833 | |
284f4730 JB |
11834 | { |
11835 | struct event_head *p; | |
11836 | ||
11837 | for (p = head_table; | |
11838 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
11839 | p++) | |
11840 | { | |
11841 | *p->var = intern (p->name); | |
11842 | staticpro (p->var); | |
11843 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 11844 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
11845 | } |
11846 | } | |
11847 | ||
8e1e4240 | 11848 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 11849 | staticpro (&button_down_location); |
8e1e4240 GM |
11850 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
11851 | staticpro (&mouse_syms); | |
13899bc1 | 11852 | wheel_syms = Fmake_vector (make_number (4), Qnil); |
8006e4bb | 11853 | staticpro (&wheel_syms); |
88cb0656 JB |
11854 | |
11855 | { | |
11856 | int i; | |
11857 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
11858 | ||
11859 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
11860 | for (i = 0; i < len; i++) | |
86e5706b RS |
11861 | if (modifier_names[i]) |
11862 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
11863 | staticpro (&modifier_symbols); |
11864 | } | |
11865 | ||
9deb415a JB |
11866 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
11867 | staticpro (&recent_keys); | |
11868 | ||
6569cc8d | 11869 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 11870 | staticpro (&this_command_keys); |
6569cc8d | 11871 | |
7d18f9ae RS |
11872 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
11873 | staticpro (&raw_keybuf); | |
11874 | ||
03b4122a BF |
11875 | Qextended_command_history = intern ("extended-command-history"); |
11876 | Fset (Qextended_command_history, Qnil); | |
11877 | staticpro (&Qextended_command_history); | |
11878 | ||
24597608 RS |
11879 | accent_key_syms = Qnil; |
11880 | staticpro (&accent_key_syms); | |
11881 | ||
284f4730 JB |
11882 | func_key_syms = Qnil; |
11883 | staticpro (&func_key_syms); | |
11884 | ||
a24dc617 RS |
11885 | drag_n_drop_syms = Qnil; |
11886 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 11887 | |
cd21b839 JB |
11888 | unread_switch_frame = Qnil; |
11889 | staticpro (&unread_switch_frame); | |
11890 | ||
fe412364 EN |
11891 | internal_last_event_frame = Qnil; |
11892 | staticpro (&internal_last_event_frame); | |
11893 | ||
11894 | read_key_sequence_cmd = Qnil; | |
11895 | staticpro (&read_key_sequence_cmd); | |
11896 | ||
759860a6 RS |
11897 | menu_bar_one_keymap_changed_items = Qnil; |
11898 | staticpro (&menu_bar_one_keymap_changed_items); | |
11899 | ||
7320c7de KS |
11900 | menu_bar_items_vector = Qnil; |
11901 | staticpro (&menu_bar_items_vector); | |
11902 | ||
638d3da0 CY |
11903 | help_form_saved_window_configs = Qnil; |
11904 | staticpro (&help_form_saved_window_configs); | |
11905 | ||
ff458d81 | 11906 | defsubr (&Scurrent_idle_time); |
58da34c7 | 11907 | defsubr (&Sevent_symbol_parse_modifiers); |
a1706c30 | 11908 | defsubr (&Sevent_convert_list); |
284f4730 | 11909 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11910 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11911 | defsubr (&Srecursive_edit); |
ae372f41 | 11912 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
284f4730 | 11913 | defsubr (&Strack_mouse); |
2eb6bfbe | 11914 | #endif |
284f4730 JB |
11915 | defsubr (&Sinput_pending_p); |
11916 | defsubr (&Scommand_execute); | |
11917 | defsubr (&Srecent_keys); | |
11918 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11919 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11920 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11921 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11922 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11923 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11924 | defsubr (&Ssuspend_emacs); |
11925 | defsubr (&Sabort_recursive_edit); | |
11926 | defsubr (&Sexit_recursive_edit); | |
11927 | defsubr (&Srecursion_depth); | |
11928 | defsubr (&Stop_level); | |
11929 | defsubr (&Sdiscard_input); | |
11930 | defsubr (&Sopen_dribble_file); | |
a712a8c3 KL |
11931 | defsubr (&Sset_input_interrupt_mode); |
11932 | defsubr (&Sset_output_flow_control); | |
11933 | defsubr (&Sset_input_meta_mode); | |
11934 | defsubr (&Sset_quit_char); | |
284f4730 | 11935 | defsubr (&Sset_input_mode); |
80645119 | 11936 | defsubr (&Scurrent_input_mode); |
284f4730 | 11937 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11938 | defsubr (&Sposn_at_point); |
11939 | defsubr (&Sposn_at_x_y); | |
284f4730 | 11940 | |
4b09796d | 11941 | DEFVAR_LISP ("last-command-event", &last_command_event, |
4707d2d0 | 11942 | doc: /* Last input event that was part of a command. */); |
284f4730 | 11943 | |
7d6de002 | 11944 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
11945 | doc: /* Last input event in a command, except for mouse menu events. |
11946 | Mouse menus give back keys that don't look like mouse events; | |
11947 | this variable holds the actual mouse event that led to the menu, | |
11948 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 11949 | |
4b09796d | 11950 | DEFVAR_LISP ("last-input-event", &last_input_event, |
fa1361cb | 11951 | doc: /* Last input event. */); |
86e5706b | 11952 | |
24597608 | 11953 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 | 11954 | doc: /* List of events to be read as the command input. |
96f4f7ec KS |
11955 | These events are processed first, before actual keyboard input. |
11956 | Events read from this list are not normally added to `this-command-keys', | |
11957 | as they will already have been added once as they were read for the first time. | |
11958 | An element of the form (t . EVENT) forces EVENT to be added to that list. */); | |
7d18f9ae | 11959 | Vunread_command_events = Qnil; |
284f4730 | 11960 | |
86e5706b | 11961 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 11962 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 11963 | |
7d18f9ae | 11964 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 | 11965 | doc: /* List of events to be processed as input by input methods. |
748726f4 | 11966 | These events are processed before `unread-command-events' |
7d8d0914 | 11967 | and actual keyboard input, but are not given to `input-method-function'. */); |
7d18f9ae RS |
11968 | Vunread_post_input_method_events = Qnil; |
11969 | ||
11970 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
11971 | doc: /* List of events to be processed as input by input methods. |
11972 | These events are processed after `unread-command-events', but | |
748726f4 KH |
11973 | before actual keyboard input. |
11974 | If there's an active input method, the events are given to | |
11975 | `input-method-function'. */); | |
7d18f9ae RS |
11976 | Vunread_input_method_events = Qnil; |
11977 | ||
284f4730 | 11978 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
11979 | doc: /* Meta-prefix character code. |
11980 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 11981 | XSETINT (meta_prefix_char, 033); |
284f4730 | 11982 | |
6c7178b9 | 11983 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
11984 | doc: /* The last command executed. |
11985 | Normally a symbol with a function definition, but can be whatever was found | |
11986 | in the keymap, or whatever the variable `this-command' was set to by that | |
11987 | command. | |
11988 | ||
11989 | The value `mode-exit' is special; it means that the previous command | |
11990 | read an event that told it to exit, and it did so and unread that event. | |
11991 | In other words, the present command is the event that made the previous | |
11992 | command exit. | |
11993 | ||
11994 | The value `kill-region' is special; it means that the previous command | |
2a42d440 KL |
11995 | was a kill command. |
11996 | ||
6ed8eeff | 11997 | `last-command' has a separate binding for each terminal device. |
2a42d440 | 11998 | See Info node `(elisp)Multiple displays'. */); |
284f4730 | 11999 | |
75045dcb | 12000 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 12001 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 12002 | |
d0d3a311 MR |
12003 | DEFVAR_KBOARD ("last-repeatable-command", Vlast_repeatable_command, |
12004 | doc: /* Last command that may be repeated. | |
12005 | The last command executed that was not bound to an input event. | |
12006 | This is the command `repeat' will try to repeat. */); | |
12007 | ||
d5eecefb | 12008 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
12009 | doc: /* The command now being executed. |
12010 | The command can set this variable; whatever is put here | |
12011 | will be in `last-command' during the following command. */); | |
d5eecefb | 12012 | Vthis_command = Qnil; |
284f4730 | 12013 | |
025ae953 CY |
12014 | DEFVAR_LISP ("this-command-keys-shift-translated", |
12015 | &Vthis_command_keys_shift_translated, | |
12016 | doc: /* Non-nil if the key sequence activating this command was shift-translated. | |
12017 | Shift-translation occurs when there is no binding for the key sequence | |
12018 | as entered, but a binding was found by changing an upper-case letter | |
12019 | to lower-case, or a shifted function key to an unshifted one. */); | |
12020 | Vthis_command_keys_shift_translated = Qnil; | |
12021 | ||
8b9940e6 | 12022 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
12023 | doc: /* The command bound to the current key sequence before remapping. |
12024 | It equals `this-command' if the original command was not remapped through | |
12025 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 12026 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
12027 | Vthis_original_command = Qnil; |
12028 | ||
284f4730 | 12029 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
12030 | doc: /* *Number of input events between auto-saves. |
12031 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
12032 | auto_save_interval = 300; |
12033 | ||
12034 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
12035 | doc: /* *Number of seconds idle time before auto-save. |
12036 | Zero or nil means disable auto-saving due to idleness. | |
12037 | After auto-saving due to this many seconds of idle time, | |
12038 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 12039 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 12040 | |
39aab679 | 12041 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
12042 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
12043 | The value may be integer or floating point. */); | |
39aab679 | 12044 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
12045 | |
12046 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
12047 | doc: /* *Interval between polling for input during Lisp execution. |
12048 | The reason for polling is to make C-g work to stop a running program. | |
12049 | Polling is needed only when using X windows and SIGIO does not work. | |
12050 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 12051 | polling_period = 2; |
df0f2ba1 | 12052 | |
564dc952 | 12053 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 | 12054 | doc: /* *Maximum time between mouse clicks to make a double-click. |
05e0ac99 JB |
12055 | Measured in milliseconds. The value nil means disable double-click |
12056 | recognition; t means double-clicks have no time limit and are detected | |
4707d2d0 | 12057 | by position only. */); |
aab06933 | 12058 | Vdouble_click_time = make_number (500); |
fbcd35bd | 12059 | |
222d557c | 12060 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
12061 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
12062 | On window-system frames, value is the number of pixels the mouse may have | |
12063 | moved horizontally or vertically between two clicks to make a double-click. | |
12064 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
12065 | instead of pixels. |
12066 | ||
12067 | This variable is also the threshold for motion of the mouse | |
12068 | to count as a drag. */); | |
222d557c | 12069 | double_click_fuzz = 3; |
c60ee5e7 | 12070 | |
03361bcc | 12071 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 12072 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
12073 | inhibit_local_menu_bar_menus = 0; |
12074 | ||
284f4730 | 12075 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
12076 | doc: /* Number of complete key sequences read as input so far. |
12077 | This includes key sequences read from keyboard macros. | |
12078 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
12079 | num_input_keys = 0; |
12080 | ||
c43b1734 | 12081 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
12082 | doc: /* Number of input events read from the keyboard so far. |
12083 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 12084 | num_nonmacro_input_events = 0; |
fa90970d | 12085 | |
4c52b668 | 12086 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
12087 | doc: /* The frame in which the most recently read event occurred. |
12088 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
12089 | Vlast_event_frame = Qnil; |
12090 | ||
fa90970d RS |
12091 | /* This variable is set up in sysdep.c. */ |
12092 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 12093 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 12094 | |
7e85b935 | 12095 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
12096 | doc: /* Character to recognize as meaning Help. |
12097 | When it is read, do `(eval help-form)', and display result if it's a string. | |
12098 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 12099 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 12100 | |
ecb7cb34 | 12101 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
12102 | doc: /* List of input events to recognize as meaning Help. |
12103 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
12104 | Vhelp_event_list = Qnil; |
12105 | ||
284f4730 | 12106 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
12107 | doc: /* Form to execute when character `help-char' is read. |
12108 | If the form returns a string, that string is displayed. | |
12109 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
12110 | Vhelp_form = Qnil; |
12111 | ||
7e85b935 | 12112 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
12113 | doc: /* Command to run when `help-char' character follows a prefix key. |
12114 | This command is used only when there is no actual binding | |
12115 | for that character after that prefix key. */); | |
7e85b935 RS |
12116 | Vprefix_help_command = Qnil; |
12117 | ||
284f4730 | 12118 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
12119 | doc: /* Form to evaluate when Emacs starts up. |
12120 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
12121 | Vtop_level = Qnil; |
12122 | ||
2e478293 KL |
12123 | DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table, |
12124 | doc: /* Translate table for local keyboard input, or nil. | |
669de2fb LT |
12125 | If non-nil, the value should be a char-table. Each character read |
12126 | from the keyboard is looked up in this char-table. If the value found | |
12127 | there is non-nil, then it is used instead of the actual input character. | |
12128 | ||
12129 | The value can also be a string or vector, but this is considered obsolete. | |
12130 | If it is a string or vector of length N, character codes N and up are left | |
12131 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
12132 | |
12133 | This is applied to the characters supplied to input methods, not their | |
2e478293 KL |
12134 | output. See also `translation-table-for-input'. |
12135 | ||
6ed8eeff KL |
12136 | This variable has a separate binding for each terminal. See Info node |
12137 | `(elisp)Multiple displays'. */); | |
284f4730 | 12138 | |
8026024c | 12139 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
12140 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
12141 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
12142 | cannot_suspend = 0; |
12143 | ||
284f4730 | 12144 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
12145 | doc: /* Non-nil means prompt with menus when appropriate. |
12146 | This is done when reading from a keymap that has a prompt string, | |
12147 | for elements that have prompt strings. | |
12148 | The menu is displayed on the screen | |
12149 | if X menus were enabled at configuration | |
12150 | time and the previous event was a mouse click prefix key. | |
12151 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
12152 | menu_prompting = 1; |
12153 | ||
12154 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
12155 | doc: /* Character to see next line of menu prompt. |
12156 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 12157 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
12158 | |
12159 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
12160 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
12161 | Emacs applies the modifiers of the character stored here to each keyboard | |
12162 | character it reads. For example, after evaluating the expression | |
12163 | (setq extra-keyboard-modifiers ?\\C-x) | |
12164 | all input characters will have the control modifier applied to them. | |
12165 | ||
12166 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
12167 | not count as a control character; rather, it counts as a character | |
12168 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
12169 | cancels any modification. */); | |
9fa4395d | 12170 | extra_keyboard_modifiers = 0; |
86e5706b RS |
12171 | |
12172 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
12173 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
12174 | The command loop sets this to nil before each command, | |
12175 | and tests the value when the command returns. | |
12176 | Buffer modification stores t in this variable. */); | |
86e5706b | 12177 | Vdeactivate_mark = Qnil; |
5c4cc82a SM |
12178 | Qdeactivate_mark = intern ("deactivate-mark"); |
12179 | staticpro (&Qdeactivate_mark); | |
86e5706b | 12180 | |
b0f2a7bf | 12181 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 12182 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
12183 | Vcommand_hook_internal = Qnil; |
12184 | ||
86e5706b | 12185 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
12186 | doc: /* Normal hook run before each command is executed. |
12187 | If an unhandled error happens in running this hook, | |
12188 | the hook value is set to nil, since otherwise the error | |
12189 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
12190 | Vpre_command_hook = Qnil; |
12191 | ||
12192 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
12193 | doc: /* Normal hook run after each command is executed. |
12194 | If an unhandled error happens in running this hook, | |
12195 | the hook value is set to nil, since otherwise the error | |
12196 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 12197 | Vpost_command_hook = Qnil; |
48e416d4 | 12198 | |
cf24f894 RS |
12199 | #if 0 |
12200 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 12201 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
12202 | #endif |
12203 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
c8e16a02 | 12204 | staticpro (&Qecho_area_clear_hook); |
cf24f894 | 12205 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 12206 | |
48e416d4 | 12207 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 12208 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 12209 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 12210 | |
9f9c0e27 | 12211 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
12212 | doc: /* List of menu bar items to move to the end of the menu bar. |
12213 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 12214 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 12215 | |
217258d5 KH |
12216 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
12217 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
12218 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
12219 | If this variable is non-nil, it is used as a keymap instead of the | |
12220 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
12221 | It also replaces `overriding-local-map'. |
12222 | ||
4707d2d0 | 12223 | This variable is intended to let commands such as `universal-argument' |
2a42d440 KL |
12224 | set up a different keymap for reading the next command. |
12225 | ||
6ed8eeff KL |
12226 | `overriding-terminal-local-map' has a separate binding for each |
12227 | terminal device. | |
2a42d440 | 12228 | See Info node `(elisp)Multiple displays'. */); |
217258d5 | 12229 | |
9dd3131c | 12230 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 | 12231 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
12232 | If this variable is non-nil, it is used as a keymap--replacing the |
12233 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
12234 | Voverriding_local_map = Qnil; |
12235 | ||
d0a49716 | 12236 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
12237 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
12238 | Otherwise, the menu bar continues to reflect the buffer's local map | |
12239 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
12240 | Voverriding_local_map_menu_flag = Qnil; |
12241 | ||
7f07d5ca | 12242 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 12243 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
12244 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
12245 | ||
71edead1 | 12246 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 12247 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 12248 | |
7c97ffdc | 12249 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
12250 | doc: /* Alist of system-specific X windows key symbols. |
12251 | Each element should have the form (N . SYMBOL) where N is the | |
12252 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
2a42d440 KL |
12253 | and SYMBOL is its name. |
12254 | ||
6ed8eeff | 12255 | `system-key-alist' has a separate binding for each terminal device. |
e93b2956 | 12256 | See Info node `(elisp)Multiple displays'. */); |
8a792f3a | 12257 | |
ac09dc1e | 12258 | DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map, |
e93b2956 | 12259 | doc: /* Keymap that translates key sequences to key sequences during input. |
4f4a84ec SM |
12260 | This is used mainly for mapping key sequences into some preferred |
12261 | key events (symbols). | |
f01b6d17 KL |
12262 | |
12263 | The `read-key-sequence' function replaces any subsequence bound by | |
7a81ec10 KL |
12264 | `local-function-key-map' with its binding. More precisely, when the |
12265 | active keymaps have no binding for the current key sequence but | |
12266 | `local-function-key-map' binds a suffix of the sequence to a vector or | |
12267 | string, `read-key-sequence' replaces the matching suffix with its | |
12268 | binding, and continues with the new sequence. | |
f01b6d17 | 12269 | |
feba0cd6 KL |
12270 | If the binding is a function, it is called with one argument (the prompt) |
12271 | and its return value (a key sequence) is used. | |
12272 | ||
7a81ec10 KL |
12273 | The events that come from bindings in `local-function-key-map' are not |
12274 | themselves looked up in `local-function-key-map'. | |
f01b6d17 | 12275 | |
7a81ec10 | 12276 | For example, suppose `local-function-key-map' binds `ESC O P' to [f1]. |
f01b6d17 | 12277 | Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing |
7a81ec10 KL |
12278 | `C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key, |
12279 | typing `ESC O P x' would return [f1 x]. | |
f01b6d17 | 12280 | |
6ed8eeff | 12281 | `local-function-key-map' has a separate binding for each terminal |
7a81ec10 | 12282 | device. See Info node `(elisp)Multiple displays'. If you need to |
6ed8eeff | 12283 | define a binding on all terminals, change `function-key-map' |
7a81ec10 | 12284 | instead. Initially, `local-function-key-map' is an empty keymap that |
6ed8eeff | 12285 | has `function-key-map' as its parent on all terminal devices. */); |
f01b6d17 | 12286 | |
4f4a84ec SM |
12287 | DEFVAR_KBOARD ("input-decode-map", Vinput_decode_map, |
12288 | doc: /* Keymap that decodes input escape sequences. | |
12289 | This is used mainly for mapping ASCII function key sequences into | |
12290 | real Emacs function key events (symbols). | |
12291 | ||
12292 | The `read-key-sequence' function replaces any subsequence bound by | |
79f66be1 | 12293 | `input-key-map' with its binding. Contrary to `function-key-map', |
4f4a84ec SM |
12294 | this map applies its rebinding regardless of the presence of an ordinary |
12295 | binding. So it is more like `key-translation-map' except that it applies | |
12296 | before `function-key-map' rather than after. | |
12297 | ||
12298 | If the binding is a function, it is called with one argument (the prompt) | |
12299 | and its return value (a key sequence) is used. | |
12300 | ||
12301 | The events that come from bindings in `input-decode-map' are not | |
12302 | themselves looked up in `input-decode-map'. | |
12303 | ||
12304 | This variable is keyboard-local. */); | |
12305 | ||
ac09dc1e KL |
12306 | DEFVAR_LISP ("function-key-map", &Vfunction_key_map, |
12307 | doc: /* The parent keymap of all `local-function-key-map' instances. | |
6ed8eeff | 12308 | Function key definitions that apply to all terminal devices should go |
7a81ec10 KL |
12309 | here. If a mapping is defined in both the current |
12310 | `local-function-key-map' binding and this variable, then the local | |
12311 | definition will take precendence. */); | |
ac09dc1e | 12312 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
033b73e2 | 12313 | |
4f4a84ec SM |
12314 | DEFVAR_LISP ("key-translation-map", &Vkey_translation_map, |
12315 | doc: /* Keymap of key translations that can override keymaps. | |
4ea81208 KL |
12316 | This keymap works like `function-key-map', but comes after that, |
12317 | and its non-prefix bindings override ordinary bindings. | |
4f4a84ec | 12318 | Another difference is that it is global rather than keyboard-local. */); |
ac09dc1e | 12319 | Vkey_translation_map = Fmake_sparse_keymap (Qnil); |
8a792f3a RS |
12320 | |
12321 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
12322 | doc: /* List of deferred actions to be performed at a later time. |
12323 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
12324 | Vdeferred_action_list = Qnil; |
12325 | ||
12326 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
12327 | doc: /* Function to call to handle deferred actions, after each command. |
12328 | This function is called with no arguments after each command | |
12329 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 12330 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
12331 | |
12332 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
12333 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
12334 | The value can be a length of time to show the message for. | |
12335 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 12336 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 12337 | |
c04cbc3b | 12338 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 12339 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 12340 | Vtimer_list = Qnil; |
d9d4c147 KH |
12341 | |
12342 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 12343 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 12344 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
12345 | |
12346 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
12347 | doc: /* If non-nil, the function that implements the current input method. |
12348 | It's called with one argument, a printing character that was just read. | |
12349 | \(That means a character with code 040...0176.) | |
12350 | Typically this function uses `read-event' to read additional events. | |
12351 | When it does so, it should first bind `input-method-function' to nil | |
12352 | so it will not be called recursively. | |
12353 | ||
12354 | The function should return a list of zero or more events | |
12355 | to be used as input. If it wants to put back some events | |
12356 | to be reconsidered, separately, by the input method, | |
12357 | it can add them to the beginning of `unread-command-events'. | |
12358 | ||
12359 | The input method function can find in `input-method-previous-method' | |
12360 | the previous echo area message. | |
12361 | ||
12362 | The input method function should refer to the variables | |
12363 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
12364 | for guidance on what to do. */); | |
7d18f9ae | 12365 | Vinput_method_function = Qnil; |
d5eecefb RS |
12366 | |
12367 | DEFVAR_LISP ("input-method-previous-message", | |
12368 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
12369 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
12370 | This variable exists because `read-event' clears the echo area | |
12371 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 12372 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
12373 | |
12374 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
12375 | doc: /* If non-nil, the function that implements the display of help. |
12376 | It's called with one argument, the help string to display. */); | |
7ee32cda | 12377 | Vshow_help_function = Qnil; |
adf5cb9c KH |
12378 | |
12379 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
12380 | doc: /* If non-nil, suppress point adjustment after executing a command. |
12381 | ||
12382 | After a command is executed, if point is moved into a region that has | |
12383 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
12384 | the boundary of the region. But, when a command sets this variable to |
12385 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
12386 | |
12387 | This variable is set to nil before reading a command, and is checked | |
12388 | just after executing the command. */); | |
adf5cb9c KH |
12389 | Vdisable_point_adjustment = Qnil; |
12390 | ||
12391 | DEFVAR_LISP ("global-disable-point-adjustment", | |
12392 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
12393 | doc: /* *If non-nil, always suppress point adjustment. |
12394 | ||
12395 | The default value is nil, in which case, point adjustment are | |
12396 | suppressed only after special commands that set | |
12397 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 12398 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 12399 | |
00392ce6 | 12400 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, |
4707d2d0 PJ |
12401 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
12402 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 12403 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da KS |
12404 | |
12405 | DEFVAR_LISP ("throw-on-input", &Vthrow_on_input, | |
12406 | doc: /* If non-nil, any keyboard input throws to this symbol. | |
12407 | The value of that variable is passed to `quit-flag' and later causes a | |
12408 | peculiar kind of quitting. */); | |
12409 | Vthrow_on_input = Qnil; | |
9d56e0da | 12410 | |
04d8c47d RS |
12411 | DEFVAR_LISP ("command-error-function", &Vcommand_error_function, |
12412 | doc: /* If non-nil, function to output error messages. | |
12413 | The arguments are the error data, a list of the form | |
12414 | (SIGNALED-CONDITIONS . SIGNAL-DATA) | |
12415 | such as just as `condition-case' would bind its variable to, | |
12416 | the context (a string which normally goes at the start of the message), | |
12417 | and the Lisp function within which the error was signaled. */); | |
12418 | Vcommand_error_function = Qnil; | |
12419 | ||
9d56e0da EZ |
12420 | DEFVAR_LISP ("enable-disabled-menus-and-buttons", |
12421 | &Venable_disabled_menus_and_buttons, | |
12422 | doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar. | |
12423 | ||
12424 | Help functions bind this to allow help on disabled menu items | |
12425 | and tool-bar buttons. */); | |
12426 | Venable_disabled_menus_and_buttons = Qnil; | |
1bc973c2 | 12427 | |
1bc973c2 SM |
12428 | /* Create the initial keyboard. */ |
12429 | initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); | |
12430 | init_kboard (initial_kboard); | |
12431 | /* Vwindow_system is left at t for now. */ | |
12432 | initial_kboard->next_kboard = all_kboards; | |
12433 | all_kboards = initial_kboard; | |
284f4730 JB |
12434 | } |
12435 | ||
dfcf069d | 12436 | void |
284f4730 JB |
12437 | keys_of_keyboard () |
12438 | { | |
12439 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
12440 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
12441 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
12442 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
12443 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
12444 | |
12445 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
12446 | "handle-delete-frame"); | |
8612b71a AR |
12447 | initial_define_lispy_key (Vspecial_event_map, "ns-put-working-text", |
12448 | "ns-put-working-text"); | |
12449 | initial_define_lispy_key (Vspecial_event_map, "ns-unput-working-text", | |
12450 | "ns-unput-working-text"); | |
a18bf897 SM |
12451 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
12452 | current-prefix-arg, as is done in `handle-switch-frame'. | |
12453 | But `handle-switch-frame is not run from the special-map. | |
12454 | Commands from that map are run in a special way that automatically | |
12455 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
12456 | redundant but harmful: | |
12457 | - C-u C-x v = | |
12458 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
12459 | - after the first prompt, the exit-minibuffer-hook is run which may | |
12460 | iconify a frame and thus push a `iconify-frame' event. | |
12461 | - after running exit-minibuffer-hook, current-prefix-arg is | |
12462 | restored to the non-nil value it had before the prompt. | |
12463 | - we enter the second prompt. | |
12464 | current-prefix-arg is non-nil, prefix-arg is nil. | |
12465 | - before running the first real event, we run the special iconify-frame | |
12466 | event, but we pass the `special' arg to execute-command so | |
12467 | current-prefix-arg and prefix-arg are left untouched. | |
12468 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
12469 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 12470 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 12471 | "ignore"); |
7f07d5ca | 12472 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 12473 | "ignore"); |
a4e19f6e SM |
12474 | /* Handling it at such a low-level causes read_key_sequence to get |
12475 | * confused because it doesn't realize that the current_buffer was | |
12476 | * changed by read_char. | |
6b61353c | 12477 | * |
a4e19f6e SM |
12478 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
12479 | * "handle-select-window"); */ | |
4ebc27a5 JD |
12480 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
12481 | "handle-save-session"); | |
033b73e2 MA |
12482 | |
12483 | #ifdef HAVE_DBUS | |
12484 | /* Define a special event which is raised for dbus callback | |
12485 | functions. */ | |
12486 | initial_define_lispy_key (Vspecial_event_map, "dbus-event", | |
12487 | "dbus-handle-event"); | |
12488 | #endif | |
284f4730 | 12489 | } |
1269a761 SM |
12490 | |
12491 | /* Mark the pointers in the kboard objects. | |
12492 | Called by the Fgarbage_collector. */ | |
12493 | void | |
12494 | mark_kboards () | |
12495 | { | |
12496 | KBOARD *kb; | |
12497 | Lisp_Object *p; | |
12498 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
12499 | { | |
12500 | if (kb->kbd_macro_buffer) | |
12501 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
12502 | mark_object (*p); |
12503 | mark_object (kb->Voverriding_terminal_local_map); | |
12504 | mark_object (kb->Vlast_command); | |
12505 | mark_object (kb->Vreal_last_command); | |
1d33157f | 12506 | mark_object (kb->Vkeyboard_translate_table); |
d0d3a311 | 12507 | mark_object (kb->Vlast_repeatable_command); |
3ebb8729 SM |
12508 | mark_object (kb->Vprefix_arg); |
12509 | mark_object (kb->Vlast_prefix_arg); | |
12510 | mark_object (kb->kbd_queue); | |
12511 | mark_object (kb->defining_kbd_macro); | |
12512 | mark_object (kb->Vlast_kbd_macro); | |
12513 | mark_object (kb->Vsystem_key_alist); | |
12514 | mark_object (kb->system_key_syms); | |
70b8d0a4 | 12515 | mark_object (kb->Vwindow_system); |
4f4a84ec | 12516 | mark_object (kb->Vinput_decode_map); |
ac09dc1e | 12517 | mark_object (kb->Vlocal_function_key_map); |
3ebb8729 SM |
12518 | mark_object (kb->Vdefault_minibuffer_frame); |
12519 | mark_object (kb->echo_string); | |
1269a761 SM |
12520 | } |
12521 | { | |
12522 | struct input_event *event; | |
12523 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
12524 | { | |
12525 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
12526 | event = kbd_buffer; | |
e3f6e7c7 KS |
12527 | if (event->kind != SELECTION_REQUEST_EVENT |
12528 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
12529 | { |
12530 | mark_object (event->x); | |
12531 | mark_object (event->y); | |
12532 | } | |
3ebb8729 SM |
12533 | mark_object (event->frame_or_window); |
12534 | mark_object (event->arg); | |
1269a761 SM |
12535 | } |
12536 | } | |
12537 | } | |
6b61353c KH |
12538 | |
12539 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
12540 | (do not change this comment) */ |