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, | |
87df3c32 | 4 | 2005, 2006, 2007, 2008 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 JB |
54 | #ifndef VMS |
55 | #include <sys/ioctl.h> | |
284f4730 | 56 | #endif |
80e4aa30 | 57 | #endif /* not MSDOS */ |
284f4730 | 58 | |
52baf19e | 59 | #include "syssignal.h" |
52baf19e | 60 | |
03cee6ae GM |
61 | #include <sys/types.h> |
62 | #ifdef HAVE_UNISTD_H | |
63 | #include <unistd.h> | |
64 | #endif | |
65 | ||
e31d908f DN |
66 | #ifdef HAVE_FCNTL_H |
67 | #include <fcntl.h> | |
68 | #endif | |
69 | ||
c5e3b6c5 RS |
70 | /* This is to get the definitions of the XK_ symbols. */ |
71 | #ifdef HAVE_X_WINDOWS | |
72 | #include "xterm.h" | |
73 | #endif | |
74 | ||
e98a93eb GV |
75 | #ifdef HAVE_NTGUI |
76 | #include "w32term.h" | |
77 | #endif /* HAVE_NTGUI */ | |
78 | ||
e0f712ba | 79 | #ifdef MAC_OS |
1a578e9b AC |
80 | #include "macterm.h" |
81 | #endif | |
82 | ||
02639609 | 83 | #ifndef USE_CRT_DLL |
52baf19e | 84 | extern int errno; |
02639609 | 85 | #endif |
52baf19e | 86 | |
9ac0d9e0 JB |
87 | /* Variables for blockinput.h: */ |
88 | ||
89 | /* Non-zero if interrupt input is blocked right now. */ | |
cf2db145 | 90 | volatile int interrupt_input_blocked; |
9ac0d9e0 JB |
91 | |
92 | /* Nonzero means an input interrupt has arrived | |
93 | during the current critical section. */ | |
63927c41 | 94 | int interrupt_input_pending; |
9ac0d9e0 | 95 | |
de11c1ea | 96 | #define KBD_BUFFER_SIZE 4096 |
284f4730 | 97 | |
c5fdd383 KH |
98 | #ifdef MULTI_KBOARD |
99 | KBOARD *initial_kboard; | |
100 | KBOARD *current_kboard; | |
101 | KBOARD *all_kboards; | |
1e8bd3da | 102 | int single_kboard; |
6c6083a9 | 103 | #else |
c5fdd383 | 104 | KBOARD the_only_kboard; |
6c6083a9 | 105 | #endif |
612b78ef | 106 | |
284f4730 | 107 | /* Non-nil disable property on a command means |
971e4c98 LT |
108 | do not execute it; call disabled-command-function's value instead. */ |
109 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 | 110 | |
0721f230 | 111 | #define NUM_RECENT_KEYS (300) |
284f4730 JB |
112 | int recent_keys_index; /* Index for storing next element into recent_keys */ |
113 | int total_keys; /* Total number of elements stored into recent_keys */ | |
0721f230 | 114 | Lisp_Object recent_keys; /* Vector holds the last NUM_RECENT_KEYS keystrokes */ |
284f4730 | 115 | |
6569cc8d JB |
116 | /* Vector holding the key sequence that invoked the current command. |
117 | It is reused for each command, and it may be longer than the current | |
118 | sequence; this_command_key_count indicates how many elements | |
119 | actually mean something. | |
120 | It's easier to staticpro a single Lisp_Object than an array. */ | |
121 | Lisp_Object this_command_keys; | |
122 | int this_command_key_count; | |
284f4730 | 123 | |
63020c46 RS |
124 | /* 1 after calling Freset_this_command_lengths. |
125 | Usually it is 0. */ | |
126 | int this_command_key_count_reset; | |
127 | ||
7d18f9ae RS |
128 | /* This vector is used as a buffer to record the events that were actually read |
129 | by read_key_sequence. */ | |
130 | Lisp_Object raw_keybuf; | |
131 | int raw_keybuf_count; | |
132 | ||
025ae953 CY |
133 | /* Non-nil if the present key sequence was obtained by shift translation. */ |
134 | Lisp_Object Vthis_command_keys_shift_translated; | |
135 | ||
7d18f9ae | 136 | #define GROW_RAW_KEYBUF \ |
7189cad8 | 137 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
6bf377e2 | 138 | raw_keybuf = larger_vector (raw_keybuf, raw_keybuf_count * 2, Qnil) \ |
7d18f9ae | 139 | |
6321824f RS |
140 | /* Number of elements of this_command_keys |
141 | that precede this key sequence. */ | |
142 | int this_single_command_key_start; | |
143 | ||
71918b75 RS |
144 | /* Record values of this_command_key_count and echo_length () |
145 | before this command was read. */ | |
146 | static int before_command_key_count; | |
147 | static int before_command_echo_length; | |
71918b75 | 148 | |
284f4730 JB |
149 | extern int minbuf_level; |
150 | ||
a59b172a RS |
151 | extern int message_enable_multibyte; |
152 | ||
7ee32cda GM |
153 | /* If non-nil, the function that implements the display of help. |
154 | It's called with one argument, the help string to display. */ | |
155 | ||
156 | Lisp_Object Vshow_help_function; | |
157 | ||
284f4730 | 158 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 159 | |
284f4730 JB |
160 | static int menu_prompting; |
161 | ||
162 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 163 | |
284f4730 JB |
164 | static Lisp_Object menu_prompt_more_char; |
165 | ||
166 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 167 | |
284f4730 JB |
168 | static jmp_buf getcjmp; |
169 | ||
170 | /* True while doing kbd input. */ | |
171 | int waiting_for_input; | |
172 | ||
173 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 174 | |
c843d6c6 | 175 | int echoing; |
284f4730 | 176 | |
985f9f66 GM |
177 | /* Non-null means we can start echoing at the next input pause even |
178 | though there is something in the echo area. */ | |
179 | ||
180 | static struct kboard *ok_to_echo_at_next_pause; | |
181 | ||
59a84f8e GM |
182 | /* The kboard last echoing, or null for none. Reset to 0 in |
183 | cancel_echoing. If non-null, and a current echo area message | |
184 | exists, and echo_message_buffer is eq to the current message | |
185 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 186 | |
f49aedfd | 187 | struct kboard *echo_kboard; |
1fc93d49 | 188 | |
59a84f8e GM |
189 | /* The buffer used for echoing. Set in echo_now, reset in |
190 | cancel_echoing. */ | |
191 | ||
c843d6c6 | 192 | Lisp_Object echo_message_buffer; |
59a84f8e | 193 | |
03361bcc RS |
194 | /* Nonzero means disregard local maps for the menu bar. */ |
195 | static int inhibit_local_menu_bar_menus; | |
196 | ||
80e4aa30 | 197 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
198 | int immediate_quit; |
199 | ||
04d8c47d RS |
200 | /* The user's hook function for outputting an error message. */ |
201 | Lisp_Object Vcommand_error_function; | |
202 | ||
fa90970d RS |
203 | /* The user's ERASE setting. */ |
204 | Lisp_Object Vtty_erase_char; | |
205 | ||
284f4730 | 206 | /* Character to recognize as the help char. */ |
7e85b935 | 207 | Lisp_Object Vhelp_char; |
284f4730 | 208 | |
ecb7cb34 KH |
209 | /* List of other event types to recognize as meaning "help". */ |
210 | Lisp_Object Vhelp_event_list; | |
211 | ||
284f4730 JB |
212 | /* Form to execute when help char is typed. */ |
213 | Lisp_Object Vhelp_form; | |
214 | ||
7e85b935 RS |
215 | /* Command to run when the help character follows a prefix key. */ |
216 | Lisp_Object Vprefix_help_command; | |
217 | ||
9f9c0e27 RS |
218 | /* List of items that should move to the end of the menu bar. */ |
219 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 220 | |
6526ab49 RS |
221 | /* Non-nil means show the equivalent key-binding for |
222 | any M-x command that has one. | |
223 | The value can be a length of time to show the message for. | |
224 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
225 | Lisp_Object Vsuggest_key_bindings; | |
226 | ||
00392ce6 MB |
227 | /* How long to display an echo-area message when the minibuffer is active. |
228 | If the value is not a number, such messages don't time out. */ | |
229 | Lisp_Object Vminibuffer_message_timeout; | |
230 | ||
284f4730 JB |
231 | /* Character that causes a quit. Normally C-g. |
232 | ||
233 | If we are running on an ordinary terminal, this must be an ordinary | |
234 | ASCII char, since we want to make it our interrupt character. | |
235 | ||
236 | If we are not running on an ordinary terminal, it still needs to be | |
237 | an ordinary ASCII char. This character needs to be recognized in | |
238 | the input interrupt handler. At this point, the keystroke is | |
239 | represented as a struct input_event, while the desired quit | |
240 | character is specified as a lispy event. The mapping from struct | |
241 | input_events to lispy events cannot run in an interrupt handler, | |
242 | and the reverse mapping is difficult for anything but ASCII | |
243 | keystrokes. | |
244 | ||
245 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
246 | ASCII character. */ | |
247 | int quit_char; | |
248 | ||
249 | extern Lisp_Object current_global_map; | |
250 | extern int minibuf_level; | |
251 | ||
9dd3131c RS |
252 | /* If non-nil, this is a map that overrides all other local maps. */ |
253 | Lisp_Object Voverriding_local_map; | |
254 | ||
d0a49716 RS |
255 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
256 | Lisp_Object Voverriding_local_map_menu_flag; | |
257 | ||
7f07d5ca RS |
258 | /* Keymap that defines special misc events that should |
259 | be processed immediately at a low level. */ | |
260 | Lisp_Object Vspecial_event_map; | |
261 | ||
284f4730 JB |
262 | /* Current depth in recursive edits. */ |
263 | int command_loop_level; | |
264 | ||
265 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 266 | EMACS_INT num_input_keys; |
284f4730 JB |
267 | |
268 | /* Last input character read as a command. */ | |
269 | Lisp_Object last_command_char; | |
270 | ||
7d6de002 RS |
271 | /* Last input character read as a command, not counting menus |
272 | reached by the mouse. */ | |
273 | Lisp_Object last_nonmenu_event; | |
274 | ||
284f4730 JB |
275 | /* Last input character read for any purpose. */ |
276 | Lisp_Object last_input_char; | |
277 | ||
dbc4e1c1 | 278 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 279 | Lisp_Object Vunread_command_events; |
284f4730 | 280 | |
7d18f9ae RS |
281 | /* If not Qnil, a list of objects to be read as subsequent command input |
282 | including input method processing. */ | |
283 | Lisp_Object Vunread_input_method_events; | |
284 | ||
285 | /* If not Qnil, a list of objects to be read as subsequent command input | |
286 | but NOT including input method processing. */ | |
287 | Lisp_Object Vunread_post_input_method_events; | |
288 | ||
86e5706b | 289 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 290 | EMACS_INT unread_command_char; |
86e5706b | 291 | |
cd21b839 JB |
292 | /* If not Qnil, this is a switch-frame event which we decided to put |
293 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 294 | next command input, after any unread_command_events. |
8f805655 JB |
295 | |
296 | read_key_sequence uses this to delay switch-frame events until the | |
297 | end of the key sequence; Fread_char uses it to put off switch-frame | |
298 | events until a non-ASCII event is acceptable as input. */ | |
299 | Lisp_Object unread_switch_frame; | |
cd21b839 | 300 | |
9fa4395d | 301 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 302 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 303 | |
284f4730 JB |
304 | /* Char to use as prefix when a meta character is typed in. |
305 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
306 | ||
307 | Lisp_Object meta_prefix_char; | |
308 | ||
309 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
310 | static int last_non_minibuf_size; | |
311 | ||
06ef7355 | 312 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
313 | static Lisp_Object Vauto_save_timeout; |
314 | ||
315 | /* Total number of times read_char has returned. */ | |
4abfba1f | 316 | int num_input_events; |
284f4730 | 317 | |
51172b6d | 318 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 319 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 320 | |
284f4730 JB |
321 | /* Auto-save automatically when this many characters have been typed |
322 | since the last time. */ | |
323 | ||
31ade731 | 324 | static EMACS_INT auto_save_interval; |
284f4730 | 325 | |
c43b1734 | 326 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
327 | |
328 | int last_auto_save; | |
329 | ||
284f4730 | 330 | /* The command being executed by the command loop. |
6c7178b9 KH |
331 | Commands may set this, and the value set will be copied into |
332 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
333 | Lisp_Object Vthis_command; |
334 | ||
335 | /* This is like Vthis_command, except that commands never set it. */ | |
336 | Lisp_Object real_this_command; | |
284f4730 | 337 | |
8b9940e6 KS |
338 | /* If the lookup of the command returns a binding, the original |
339 | command is stored in this-original-command. It is nil otherwise. */ | |
340 | Lisp_Object Vthis_original_command; | |
341 | ||
bb0e1d19 | 342 | /* The value of point when the last command was started. */ |
b453f72e KH |
343 | int last_point_position; |
344 | ||
047688cb RS |
345 | /* The buffer that was current when the last command was started. */ |
346 | Lisp_Object last_point_position_buffer; | |
347 | ||
bb0e1d19 RS |
348 | /* The window that was selected when the last command was started. */ |
349 | Lisp_Object last_point_position_window; | |
350 | ||
4c52b668 KH |
351 | /* The frame in which the last input event occurred, or Qmacro if the |
352 | last event came from a macro. We use this to determine when to | |
353 | generate switch-frame events. This may be cleared by functions | |
354 | like Fselect_frame, to make sure that a switch-frame event is | |
355 | generated by the next character. */ | |
356 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
357 | |
358 | /* A user-visible version of the above, intended to allow users to | |
359 | figure out where the last event came from, if the event doesn't | |
360 | carry that information itself (i.e. if it was a character). */ | |
361 | Lisp_Object Vlast_event_frame; | |
362 | ||
1113d9db JB |
363 | /* The timestamp of the last input event we received from the X server. |
364 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
365 | unsigned long last_event_timestamp; |
366 | ||
367 | Lisp_Object Qself_insert_command; | |
368 | Lisp_Object Qforward_char; | |
369 | Lisp_Object Qbackward_char; | |
e58aa385 | 370 | Lisp_Object Qundefined; |
d925fb39 | 371 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
372 | |
373 | /* read_key_sequence stores here the command definition of the | |
374 | key sequence that it reads. */ | |
375 | Lisp_Object read_key_sequence_cmd; | |
376 | ||
39aab679 DL |
377 | /* Echo unfinished commands after this many seconds of pause. */ |
378 | Lisp_Object Vecho_keystrokes; | |
379 | ||
284f4730 JB |
380 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
381 | Lisp_Object Vtop_level; | |
382 | ||
7d18f9ae RS |
383 | /* If non-nil, this implements the current input method. */ |
384 | Lisp_Object Vinput_method_function; | |
385 | Lisp_Object Qinput_method_function; | |
386 | ||
d5eecefb RS |
387 | /* When we call Vinput_method_function, |
388 | this holds the echo area message that was just erased. */ | |
389 | Lisp_Object Vinput_method_previous_message; | |
390 | ||
86e5706b RS |
391 | /* Non-nil means deactivate the mark at end of this command. */ |
392 | Lisp_Object Vdeactivate_mark; | |
5c4cc82a | 393 | Lisp_Object Qdeactivate_mark; |
86e5706b | 394 | |
48e416d4 RS |
395 | /* Menu bar specified in Lucid Emacs fashion. */ |
396 | ||
397 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
398 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
399 | ||
cf24f894 | 400 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 401 | |
86e5706b | 402 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
403 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
404 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 405 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 406 | |
ac09dc1e KL |
407 | /* Parent keymap of terminal-local function-key-map instances. */ |
408 | Lisp_Object Vfunction_key_map; | |
409 | ||
4f4a84ec | 410 | /* Keymap of key translations that can override keymaps. */ |
ac09dc1e | 411 | Lisp_Object Vkey_translation_map; |
4ea81208 | 412 | |
8a792f3a RS |
413 | /* List of deferred actions to be performed at a later time. |
414 | The precise format isn't relevant here; we just check whether it is nil. */ | |
415 | Lisp_Object Vdeferred_action_list; | |
416 | ||
417 | /* Function to call to handle deferred actions, when there are any. */ | |
418 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 419 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 420 | |
d5eecefb RS |
421 | Lisp_Object Qinput_method_exit_on_first_char; |
422 | Lisp_Object Qinput_method_use_echo_area; | |
423 | ||
284f4730 JB |
424 | /* File in which we write all commands we read. */ |
425 | FILE *dribble; | |
426 | ||
427 | /* Nonzero if input is available. */ | |
428 | int input_pending; | |
429 | ||
284f4730 JB |
430 | extern char *pending_malloc_warning; |
431 | ||
beecf6a1 | 432 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 433 | |
beecf6a1 KH |
434 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
435 | ||
beecf6a1 KH |
436 | /* Pointer to next available character in kbd_buffer. |
437 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 438 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
439 | next available char is in kbd_buffer[0]. */ |
440 | static struct input_event *kbd_fetch_ptr; | |
441 | ||
442 | /* Pointer to next place to store character in kbd_buffer. This | |
443 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
444 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 445 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
446 | |
447 | /* The above pair of variables forms a "queue empty" flag. When we | |
448 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
449 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
e0f24100 | 450 | there is input available if the two pointers are not equal. |
beecf6a1 KH |
451 | |
452 | Why not just have a flag set and cleared by the enqueuing and | |
453 | dequeuing functions? Such a flag could be screwed up by interrupts | |
454 | at inopportune times. */ | |
455 | ||
f3253854 | 456 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
457 | mouse moves, and motion events will appear in the input stream. |
458 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 459 | Lisp_Object do_mouse_tracking; |
284f4730 | 460 | |
284f4730 JB |
461 | /* Symbols to head events. */ |
462 | Lisp_Object Qmouse_movement; | |
3c370943 | 463 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 464 | Lisp_Object Qswitch_frame; |
bbdc2092 | 465 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
466 | Lisp_Object Qiconify_frame; |
467 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 468 | Lisp_Object Qselect_window; |
7ee32cda | 469 | Lisp_Object Qhelp_echo; |
cd21b839 | 470 | |
ae372f41 | 471 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
472 | Lisp_Object Qmouse_fixup_help_message; |
473 | #endif | |
474 | ||
284f4730 JB |
475 | /* Symbols to denote kinds of events. */ |
476 | Lisp_Object Qfunction_key; | |
477 | Lisp_Object Qmouse_click; | |
c16dab62 | 478 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 | 479 | Lisp_Object Qlanguage_change; |
07de30b9 | 480 | #endif |
a24dc617 | 481 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 | 482 | Lisp_Object Qsave_session; |
f66c49cc YM |
483 | #ifdef MAC_OS |
484 | Lisp_Object Qmac_apple_event; | |
485 | #endif | |
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)); | |
636 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 637 | static int parse_solitary_modifier (); |
0bbfdc25 | 638 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 639 | static void save_getcjmp (); |
0bbfdc25 | 640 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 641 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 642 | static void clear_event P_ ((struct input_event *)); |
e2dc7ae5 | 643 | #ifdef MULTI_KBOARD |
9148bda2 | 644 | static Lisp_Object restore_kboard_configuration P_ ((Lisp_Object)); |
e2dc7ae5 | 645 | #endif |
5598c32e | 646 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
114a8b8c | 647 | static void handle_interrupt P_ ((void)); |
5c12e63f KS |
648 | static void timer_start_idle P_ ((void)); |
649 | static void timer_stop_idle P_ ((void)); | |
650 | static void timer_resume_idle P_ ((void)); | |
23479b40 YM |
651 | static SIGTYPE handle_user_signal P_ ((int)); |
652 | static char *find_user_signal_name P_ ((int)); | |
653 | static int store_user_signal_events P_ ((void)); | |
284f4730 | 654 | |
8026024c KH |
655 | /* Nonzero means don't try to suspend even if the operating system seems |
656 | to support it. */ | |
657 | static int cannot_suspend; | |
12679e05 CY |
658 | |
659 | extern Lisp_Object Qidentity, Qonly; | |
29204e13 | 660 | \f |
284f4730 JB |
661 | /* Install the string STR as the beginning of the string of echoing, |
662 | so that it serves as a prompt for the next character. | |
663 | Also start echoing. */ | |
664 | ||
dfcf069d | 665 | void |
284f4730 | 666 | echo_prompt (str) |
a4ef85ee | 667 | Lisp_Object str; |
284f4730 | 668 | { |
678e9d18 | 669 | current_kboard->echo_string = str; |
0d121f7c | 670 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 671 | echo_now (); |
284f4730 JB |
672 | } |
673 | ||
df0f2ba1 | 674 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
675 | C can be a character, which is printed prettily ("M-C-x" and all that |
676 | jazz), or a symbol, whose name is printed. */ | |
677 | ||
dfcf069d | 678 | void |
284f4730 JB |
679 | echo_char (c) |
680 | Lisp_Object c; | |
681 | { | |
c5fdd383 | 682 | if (current_kboard->immediate_echo) |
284f4730 | 683 | { |
678e9d18 GM |
684 | int size = KEY_DESCRIPTION_SIZE + 100; |
685 | char *buffer = (char *) alloca (size); | |
686 | char *ptr = buffer; | |
687 | Lisp_Object echo_string; | |
284f4730 | 688 | |
0d121f7c | 689 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 690 | |
284f4730 | 691 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 692 | c = EVENT_HEAD (c); |
284f4730 | 693 | |
8c18cbfb | 694 | if (INTEGERP (c)) |
284f4730 | 695 | { |
678e9d18 | 696 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 697 | } |
8c18cbfb | 698 | else if (SYMBOLP (c)) |
284f4730 | 699 | { |
1b049b51 KR |
700 | Lisp_Object name = SYMBOL_NAME (c); |
701 | int nbytes = SBYTES (name); | |
c60ee5e7 | 702 | |
0d121f7c | 703 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
704 | { |
705 | int offset = ptr - buffer; | |
0d121f7c | 706 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
707 | buffer = (char *) alloca (size); |
708 | ptr = buffer + offset; | |
709 | } | |
710 | ||
1b049b51 KR |
711 | ptr += copy_text (SDATA (name), ptr, nbytes, |
712 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
713 | } |
714 | ||
0d121f7c | 715 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 716 | && help_char_p (c)) |
284f4730 | 717 | { |
678e9d18 GM |
718 | const char *text = " (Type ? for further options)"; |
719 | int len = strlen (text); | |
c60ee5e7 | 720 | |
678e9d18 GM |
721 | if (size - (ptr - buffer) < len) |
722 | { | |
723 | int offset = ptr - buffer; | |
724 | size += len; | |
725 | buffer = (char *) alloca (size); | |
726 | ptr = buffer + offset; | |
727 | } | |
728 | ||
729 | bcopy (text, ptr, len); | |
730 | ptr += len; | |
284f4730 JB |
731 | } |
732 | ||
0d121f7c GM |
733 | /* Replace a dash from echo_dash with a space, otherwise |
734 | add a space at the end as a separator between keys. */ | |
678e9d18 | 735 | if (STRINGP (echo_string) |
2ff4d3d9 | 736 | && SCHARS (echo_string) > 1) |
0d121f7c | 737 | { |
2ff4d3d9 RS |
738 | Lisp_Object last_char, prev_char, idx; |
739 | ||
740 | idx = make_number (SCHARS (echo_string) - 2); | |
741 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
742 | |
743 | idx = make_number (SCHARS (echo_string) - 1); | |
744 | last_char = Faref (echo_string, idx); | |
745 | ||
2ff4d3d9 RS |
746 | /* We test PREV_CHAR to make sure this isn't the echoing |
747 | of a minus-sign. */ | |
748 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
749 | Faset (echo_string, idx, make_number (' ')); |
750 | else | |
751 | echo_string = concat2 (echo_string, build_string (" ")); | |
752 | } | |
c3be81c7 RS |
753 | else if (STRINGP (echo_string)) |
754 | echo_string = concat2 (echo_string, build_string (" ")); | |
678e9d18 GM |
755 | |
756 | current_kboard->echo_string | |
757 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 758 | |
3dbd9ee4 | 759 | echo_now (); |
284f4730 JB |
760 | } |
761 | } | |
762 | ||
763 | /* Temporarily add a dash to the end of the echo string if it's not | |
764 | empty, so that it serves as a mini-prompt for the very next character. */ | |
765 | ||
dfcf069d | 766 | void |
284f4730 JB |
767 | echo_dash () |
768 | { | |
678e9d18 GM |
769 | /* Do nothing if not echoing at all. */ |
770 | if (NILP (current_kboard->echo_string)) | |
771 | return; | |
772 | ||
c5fdd383 | 773 | if (!current_kboard->immediate_echo |
0d121f7c | 774 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 775 | return; |
c60ee5e7 | 776 | |
7a80a6f6 | 777 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 778 | if (current_kboard->echo_after_prompt |
0d121f7c | 779 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 780 | return; |
c60ee5e7 | 781 | |
366511da MB |
782 | /* Do nothing if we have already put a dash at the end. */ |
783 | if (SCHARS (current_kboard->echo_string) > 1) | |
784 | { | |
c3be81c7 | 785 | Lisp_Object last_char, prev_char, idx; |
366511da | 786 | |
c3be81c7 RS |
787 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); |
788 | prev_char = Faref (current_kboard->echo_string, idx); | |
366511da | 789 | |
c3be81c7 RS |
790 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); |
791 | last_char = Faref (current_kboard->echo_string, idx); | |
366511da | 792 | |
c3be81c7 RS |
793 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') |
794 | return; | |
366511da MB |
795 | } |
796 | ||
284f4730 JB |
797 | /* Put a dash at the end of the buffer temporarily, |
798 | but make it go away when the next character is added. */ | |
678e9d18 GM |
799 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
800 | build_string ("-")); | |
3dbd9ee4 | 801 | echo_now (); |
284f4730 JB |
802 | } |
803 | ||
804 | /* Display the current echo string, and begin echoing if not already | |
805 | doing so. */ | |
806 | ||
07a59269 | 807 | void |
3dbd9ee4 | 808 | echo_now () |
284f4730 | 809 | { |
c5fdd383 | 810 | if (!current_kboard->immediate_echo) |
284f4730 JB |
811 | { |
812 | int i; | |
c5fdd383 | 813 | current_kboard->immediate_echo = 1; |
284f4730 JB |
814 | |
815 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
816 | { |
817 | Lisp_Object c; | |
22b94eeb RS |
818 | |
819 | /* Set before_command_echo_length to the value that would | |
820 | have been saved before the start of this subcommand in | |
821 | command_loop_1, if we had already been echoing then. */ | |
822 | if (i == this_single_command_key_start) | |
823 | before_command_echo_length = echo_length (); | |
824 | ||
d0a57728 RS |
825 | c = XVECTOR (this_command_keys)->contents[i]; |
826 | if (! (EVENT_HAS_PARAMETERS (c) | |
827 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
828 | echo_char (c); | |
829 | } | |
22b94eeb RS |
830 | |
831 | /* Set before_command_echo_length to the value that would | |
832 | have been saved before the start of this subcommand in | |
833 | command_loop_1, if we had already been echoing then. */ | |
834 | if (this_command_key_count == this_single_command_key_start) | |
835 | before_command_echo_length = echo_length (); | |
836 | ||
837 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
838 | echo_dash (); |
839 | } | |
840 | ||
841 | echoing = 1; | |
678e9d18 | 842 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 843 | SBYTES (current_kboard->echo_string), |
d5db4077 | 844 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
845 | echoing = 0; |
846 | ||
59a84f8e GM |
847 | /* Record in what buffer we echoed, and from which kboard. */ |
848 | echo_message_buffer = echo_area_buffer[0]; | |
849 | echo_kboard = current_kboard; | |
850 | ||
284f4730 JB |
851 | if (waiting_for_input && !NILP (Vquit_flag)) |
852 | quit_throw_to_read_char (); | |
853 | } | |
854 | ||
855 | /* Turn off echoing, for the start of a new command. */ | |
856 | ||
dfcf069d | 857 | void |
284f4730 JB |
858 | cancel_echoing () |
859 | { | |
c5fdd383 | 860 | current_kboard->immediate_echo = 0; |
c5fdd383 | 861 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 862 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
863 | ok_to_echo_at_next_pause = NULL; |
864 | echo_kboard = NULL; | |
865 | echo_message_buffer = Qnil; | |
284f4730 JB |
866 | } |
867 | ||
868 | /* Return the length of the current echo string. */ | |
869 | ||
870 | static int | |
871 | echo_length () | |
872 | { | |
678e9d18 | 873 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 874 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 875 | : 0); |
284f4730 JB |
876 | } |
877 | ||
878 | /* Truncate the current echo message to its first LEN chars. | |
879 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 880 | switches frames while entering a key sequence. */ |
284f4730 JB |
881 | |
882 | static void | |
678e9d18 GM |
883 | echo_truncate (nchars) |
884 | int nchars; | |
885 | { | |
886 | if (STRINGP (current_kboard->echo_string)) | |
887 | current_kboard->echo_string | |
888 | = Fsubstring (current_kboard->echo_string, | |
889 | make_number (0), make_number (nchars)); | |
890 | truncate_echo_area (nchars); | |
284f4730 JB |
891 | } |
892 | ||
893 | \f | |
894 | /* Functions for manipulating this_command_keys. */ | |
895 | static void | |
896 | add_command_key (key) | |
897 | Lisp_Object key; | |
898 | { | |
22b94eeb RS |
899 | #if 0 /* Not needed after we made Freset_this_command_lengths |
900 | do the job immediately. */ | |
71918b75 RS |
901 | /* If reset-this-command-length was called recently, obey it now. |
902 | See the doc string of that function for an explanation of why. */ | |
903 | if (before_command_restore_flag) | |
904 | { | |
905 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
906 | if (this_command_key_count < this_single_command_key_start) |
907 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
908 | echo_truncate (before_command_echo_length_1); |
909 | before_command_restore_flag = 0; | |
910 | } | |
22b94eeb | 911 | #endif |
71918b75 | 912 | |
f4e05d97 GM |
913 | if (this_command_key_count >= ASIZE (this_command_keys)) |
914 | this_command_keys = larger_vector (this_command_keys, | |
915 | 2 * ASIZE (this_command_keys), | |
916 | Qnil); | |
6569cc8d | 917 | |
b1ebcadb | 918 | ASET (this_command_keys, this_command_key_count, key); |
f4e05d97 | 919 | ++this_command_key_count; |
284f4730 | 920 | } |
f4e05d97 | 921 | |
284f4730 JB |
922 | \f |
923 | Lisp_Object | |
924 | recursive_edit_1 () | |
925 | { | |
aed13378 | 926 | int count = SPECPDL_INDEX (); |
284f4730 JB |
927 | Lisp_Object val; |
928 | ||
929 | if (command_loop_level > 0) | |
930 | { | |
931 | specbind (Qstandard_output, Qt); | |
932 | specbind (Qstandard_input, Qt); | |
933 | } | |
934 | ||
d148e14d | 935 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f | 936 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 937 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
938 | can take some time. Do not check for display_hourglass_p here, |
939 | because it could already be nil. */ | |
526a058f | 940 | cancel_hourglass (); |
84265027 GM |
941 | #endif |
942 | ||
980a2d69 GM |
943 | /* This function may have been called from a debugger called from |
944 | within redisplay, for instance by Edebugging a function called | |
945 | from fontification-functions. We want to allow redisplay in | |
946 | the debugging session. | |
947 | ||
948 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
949 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
950 | recursive edit, the original redisplay leading to the recursive | |
951 | edit will be unwound. The outcome should therefore be safe. */ | |
952 | specbind (Qinhibit_redisplay, Qnil); | |
953 | redisplaying_p = 0; | |
954 | ||
284f4730 JB |
955 | val = command_loop (); |
956 | if (EQ (val, Qt)) | |
957 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
958 | /* Handle throw from read_minibuf when using minibuffer |
959 | while it's active but we're in another window. */ | |
960 | if (STRINGP (val)) | |
43cae48c | 961 | xsignal1 (Qerror, val); |
284f4730 | 962 | |
cb5df6ae | 963 | return unbind_to (count, Qnil); |
284f4730 JB |
964 | } |
965 | ||
966 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 967 | |
07a59269 | 968 | void |
284f4730 JB |
969 | record_auto_save () |
970 | { | |
c43b1734 | 971 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 972 | } |
5846638c RS |
973 | |
974 | /* Make an auto save happen as soon as possible at command level. */ | |
975 | ||
dfcf069d | 976 | void |
5846638c RS |
977 | force_auto_save_soon () |
978 | { | |
979 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
980 | |
981 | record_asynch_buffer_change (); | |
5846638c | 982 | } |
284f4730 | 983 | \f |
284f4730 | 984 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
985 | doc: /* Invoke the editor command loop recursively. |
986 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
987 | that tells this function to return. | |
6e604a9b | 988 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 PJ |
989 | This function is called by the editor initialization to begin editing. */) |
990 | () | |
284f4730 | 991 | { |
aed13378 | 992 | int count = SPECPDL_INDEX (); |
9ce50b1e | 993 | Lisp_Object buffer; |
284f4730 | 994 | |
96edd5d4 KS |
995 | /* If we enter while input is blocked, don't lock up here. |
996 | This may happen through the debugger during redisplay. */ | |
997 | if (INPUT_BLOCKED_P) | |
998 | return Qnil; | |
999 | ||
284f4730 JB |
1000 | command_loop_level++; |
1001 | update_mode_lines = 1; | |
1002 | ||
9ce50b1e GM |
1003 | if (command_loop_level |
1004 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1005 | buffer = Fcurrent_buffer (); | |
1006 | else | |
1007 | buffer = Qnil; | |
1008 | ||
1009 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1010 | like it is done in the splash screen display, we have to | |
1011 | make sure that we restore single_kboard as command_loop_1 | |
1012 | would have done if it were left normally. */ | |
b3e6f69c KL |
1013 | if (command_loop_level > 0) |
1014 | temporarily_switch_to_single_kboard (SELECTED_FRAME ()); | |
256c9c3a | 1015 | record_unwind_protect (recursive_edit_unwind, buffer); |
9ce50b1e | 1016 | |
284f4730 JB |
1017 | recursive_edit_1 (); |
1018 | return unbind_to (count, Qnil); | |
1019 | } | |
1020 | ||
1021 | Lisp_Object | |
256c9c3a KL |
1022 | recursive_edit_unwind (buffer) |
1023 | Lisp_Object buffer; | |
284f4730 | 1024 | { |
256c9c3a KL |
1025 | if (BUFFERP (buffer)) |
1026 | Fset_buffer (buffer); | |
c60ee5e7 | 1027 | |
284f4730 JB |
1028 | command_loop_level--; |
1029 | update_mode_lines = 1; | |
1030 | return Qnil; | |
1031 | } | |
9ce50b1e | 1032 | |
284f4730 | 1033 | \f |
b3e6f69c KL |
1034 | #if 0 /* These two functions are now replaced with |
1035 | temporarily_switch_to_single_kboard. */ | |
604ccd1d | 1036 | static void |
1e8bd3da | 1037 | any_kboard_state () |
604ccd1d | 1038 | { |
1e8bd3da RS |
1039 | #ifdef MULTI_KBOARD |
1040 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1041 | it will right away be read by read_key_sequence, | |
1042 | and then if we do switch KBOARDS, it will go into the side | |
1043 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1044 | if (CONSP (Vunread_command_events)) |
4524b161 | 1045 | { |
c5fdd383 KH |
1046 | current_kboard->kbd_queue |
1047 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1048 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1049 | } |
604ccd1d | 1050 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1051 | #endif |
1052 | single_kboard = 0; | |
1053 | #endif | |
604ccd1d | 1054 | } |
1e8bd3da RS |
1055 | |
1056 | /* Switch to the single-kboard state, making current_kboard | |
1057 | the only KBOARD from which further input is accepted. */ | |
1058 | ||
1059 | void | |
1060 | single_kboard_state () | |
1061 | { | |
1062 | #ifdef MULTI_KBOARD | |
1063 | single_kboard = 1; | |
604ccd1d | 1064 | #endif |
1e8bd3da | 1065 | } |
b3e6f69c | 1066 | #endif |
1e8bd3da | 1067 | |
0c1c1b93 RS |
1068 | /* If we're in single_kboard state for kboard KBOARD, |
1069 | get out of it. */ | |
1070 | ||
1071 | void | |
1072 | not_single_kboard_state (kboard) | |
1073 | KBOARD *kboard; | |
1074 | { | |
26503ad2 | 1075 | #ifdef MULTI_KBOARD |
0c1c1b93 RS |
1076 | if (kboard == current_kboard) |
1077 | single_kboard = 0; | |
26503ad2 | 1078 | #endif |
0c1c1b93 RS |
1079 | } |
1080 | ||
1e8bd3da RS |
1081 | /* Maintain a stack of kboards, so other parts of Emacs |
1082 | can switch temporarily to the kboard of a given frame | |
1083 | and then revert to the previous status. */ | |
1084 | ||
1085 | struct kboard_stack | |
1086 | { | |
1087 | KBOARD *kboard; | |
1088 | struct kboard_stack *next; | |
1089 | }; | |
1090 | ||
1091 | static struct kboard_stack *kboard_stack; | |
1092 | ||
1093 | void | |
256c9c3a KL |
1094 | push_kboard (k) |
1095 | struct kboard *k; | |
1e8bd3da | 1096 | { |
ab48365b | 1097 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1098 | struct kboard_stack *p |
1099 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1100 | ||
1101 | p->next = kboard_stack; | |
1102 | p->kboard = current_kboard; | |
1103 | kboard_stack = p; | |
1104 | ||
256c9c3a | 1105 | current_kboard = k; |
ab48365b | 1106 | #endif |
1e8bd3da RS |
1107 | } |
1108 | ||
1109 | void | |
256c9c3a | 1110 | pop_kboard () |
1e8bd3da | 1111 | { |
ab48365b | 1112 | #ifdef MULTI_KBOARD |
6ed8eeff | 1113 | struct terminal *t; |
1e8bd3da | 1114 | struct kboard_stack *p = kboard_stack; |
24f9525b | 1115 | int found = 0; |
6ed8eeff | 1116 | for (t = terminal_list; t; t = t->next_terminal) |
3fb8e5d7 | 1117 | { |
6ed8eeff | 1118 | if (t->kboard == p->kboard) |
3fb8e5d7 KL |
1119 | { |
1120 | current_kboard = p->kboard; | |
24f9525b | 1121 | found = 1; |
3fb8e5d7 KL |
1122 | break; |
1123 | } | |
1124 | } | |
24f9525b | 1125 | if (!found) |
3fb8e5d7 | 1126 | { |
6ed8eeff | 1127 | /* The terminal we remembered has been deleted. */ |
3fb8e5d7 | 1128 | current_kboard = FRAME_KBOARD (SELECTED_FRAME ()); |
b3e6f69c | 1129 | single_kboard = 0; |
3fb8e5d7 | 1130 | } |
1e8bd3da RS |
1131 | kboard_stack = p->next; |
1132 | xfree (p); | |
ab48365b | 1133 | #endif |
1e8bd3da | 1134 | } |
256c9c3a | 1135 | |
b3e6f69c KL |
1136 | /* Switch to single_kboard mode, making current_kboard the only KBOARD |
1137 | from which further input is accepted. If F is non-nil, set its | |
1138 | KBOARD as the current keyboard. | |
1139 | ||
1140 | This function uses record_unwind_protect to return to the previous | |
1141 | state later. | |
1142 | ||
1143 | If Emacs is already in single_kboard mode, and F's keyboard is | |
1144 | locked, then this function will throw an errow. */ | |
256c9c3a KL |
1145 | |
1146 | void | |
b3e6f69c KL |
1147 | temporarily_switch_to_single_kboard (f) |
1148 | struct frame *f; | |
256c9c3a KL |
1149 | { |
1150 | #ifdef MULTI_KBOARD | |
1151 | int was_locked = single_kboard; | |
24f9525b KL |
1152 | if (was_locked) |
1153 | { | |
b3e6f69c KL |
1154 | if (f != NULL && FRAME_KBOARD (f) != current_kboard) |
1155 | /* We can not switch keyboards while in single_kboard mode. | |
251bc578 KL |
1156 | In rare cases, Lisp code may call `recursive-edit' (or |
1157 | `read-minibuffer' or `y-or-n-p') after it switched to a | |
1158 | locked frame. For example, this is likely to happen | |
1159 | when server.el connects to a new terminal while Emacs is in | |
1160 | single_kboard mode. It is best to throw an error instead | |
1161 | of presenting the user with a frozen screen. */ | |
b3e6f69c KL |
1162 | error ("Terminal %d is locked, cannot read from it", |
1163 | FRAME_TERMINAL (f)->id); | |
24f9525b | 1164 | else |
b3e6f69c KL |
1165 | /* This call is unnecessary, but helps |
1166 | `restore_kboard_configuration' discover if somebody changed | |
1167 | `current_kboard' behind our back. */ | |
24f9525b KL |
1168 | push_kboard (current_kboard); |
1169 | } | |
b3e6f69c KL |
1170 | else if (f != NULL) |
1171 | current_kboard = FRAME_KBOARD (f); | |
1172 | single_kboard = 1; | |
256c9c3a KL |
1173 | record_unwind_protect (restore_kboard_configuration, |
1174 | (was_locked ? Qt : Qnil)); | |
1175 | #endif | |
1176 | } | |
1177 | ||
b3e6f69c | 1178 | #if 0 /* This function is not needed anymore. */ |
256c9c3a KL |
1179 | void |
1180 | record_single_kboard_state () | |
1181 | { | |
24f9525b KL |
1182 | if (single_kboard) |
1183 | push_kboard (current_kboard); | |
256c9c3a KL |
1184 | record_unwind_protect (restore_kboard_configuration, |
1185 | (single_kboard ? Qt : Qnil)); | |
1186 | } | |
b3e6f69c | 1187 | #endif |
256c9c3a | 1188 | |
e2dc7ae5 | 1189 | #ifdef MULTI_KBOARD |
256c9c3a KL |
1190 | static Lisp_Object |
1191 | restore_kboard_configuration (was_locked) | |
1192 | Lisp_Object was_locked; | |
1193 | { | |
256c9c3a | 1194 | if (NILP (was_locked)) |
b3e6f69c | 1195 | single_kboard = 0; |
256c9c3a | 1196 | else |
24f9525b | 1197 | { |
b3e6f69c KL |
1198 | struct kboard *prev = current_kboard; |
1199 | single_kboard = 1; | |
24f9525b | 1200 | pop_kboard (); |
b3e6f69c KL |
1201 | /* The pop should not change the kboard. */ |
1202 | if (single_kboard && current_kboard != prev) | |
1203 | abort (); | |
24f9525b | 1204 | } |
256c9c3a KL |
1205 | return Qnil; |
1206 | } | |
e2dc7ae5 JR |
1207 | #endif |
1208 | ||
1e8bd3da RS |
1209 | \f |
1210 | /* Handle errors that are not handled at inner levels | |
1211 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1212 | |
284f4730 JB |
1213 | Lisp_Object |
1214 | cmd_error (data) | |
1215 | Lisp_Object data; | |
a1341f75 | 1216 | { |
a9f16aa9 | 1217 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1218 | char macroerror[50]; |
1219 | ||
d148e14d | 1220 | #ifdef HAVE_WINDOW_SYSTEM |
160552c5 RS |
1221 | if (display_hourglass_p) |
1222 | cancel_hourglass (); | |
1223 | #endif | |
1224 | ||
649d952d | 1225 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 1226 | { |
649d952d | 1227 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
1228 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
1229 | else | |
1230 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 1231 | executing_kbd_macro_iterations); |
e881d8b2 RS |
1232 | } |
1233 | else | |
1234 | *macroerror = 0; | |
a9f16aa9 | 1235 | |
a1341f75 RS |
1236 | Vstandard_output = Qt; |
1237 | Vstandard_input = Qt; | |
ce0d2858 | 1238 | Vexecuting_kbd_macro = Qnil; |
649d952d | 1239 | executing_kbd_macro = Qnil; |
d8bcf58e | 1240 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1241 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1242 | cancel_echoing (); |
a9f16aa9 KH |
1243 | |
1244 | /* Avoid unquittable loop if data contains a circular list. */ | |
1245 | old_level = Vprint_level; | |
1246 | old_length = Vprint_length; | |
0c04a67e RS |
1247 | XSETFASTINT (Vprint_level, 10); |
1248 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1249 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1250 | Vprint_level = old_level; |
1251 | Vprint_length = old_length; | |
a1341f75 RS |
1252 | |
1253 | Vquit_flag = Qnil; | |
1254 | ||
1255 | Vinhibit_quit = Qnil; | |
b3e6f69c | 1256 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c5fdd383 | 1257 | #ifdef MULTI_KBOARD |
e3ee34f0 RS |
1258 | if (command_loop_level == 0 && minibuf_level == 0) |
1259 | any_kboard_state (); | |
b3e6f69c | 1260 | #endif |
ff4b06d3 | 1261 | #endif |
a1341f75 RS |
1262 | |
1263 | return make_number (0); | |
1264 | } | |
1265 | ||
301738ed RS |
1266 | /* Take actions on handling an error. DATA is the data that describes |
1267 | the error. | |
1268 | ||
1269 | CONTEXT is a C-string containing ASCII characters only which | |
1270 | describes the context in which the error happened. If we need to | |
1271 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1272 | string. */ | |
1273 | ||
07a59269 | 1274 | void |
a1341f75 RS |
1275 | cmd_error_internal (data, context) |
1276 | Lisp_Object data; | |
1277 | char *context; | |
284f4730 | 1278 | { |
788f89eb | 1279 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 1280 | |
04d8c47d RS |
1281 | /* The immediate context is not interesting for Quits, |
1282 | since they are asyncronous. */ | |
1283 | if (EQ (XCAR (data), Qquit)) | |
1284 | Vsignaling_function = Qnil; | |
1285 | ||
284f4730 JB |
1286 | Vquit_flag = Qnil; |
1287 | Vinhibit_quit = Qt; | |
284f4730 | 1288 | |
04d8c47d RS |
1289 | /* Use user's specified output function if any. */ |
1290 | if (!NILP (Vcommand_error_function)) | |
1291 | call3 (Vcommand_error_function, data, | |
fcd69a29 | 1292 | context ? build_string (context) : empty_unibyte_string, |
04d8c47d | 1293 | Vsignaling_function); |
ff11dfa1 | 1294 | /* If the window system or terminal frame hasn't been initialized |
04d8c47d RS |
1295 | yet, or we're not interactive, write the message to stderr and exit. */ |
1296 | else if (!sf->glyphs_initialized_p | |
251bc578 | 1297 | || FRAME_INITIAL_P (sf) |
04d8c47d RS |
1298 | || noninteractive) |
1299 | { | |
1300 | print_error_message (data, Qexternal_debugging_output, | |
1301 | context, Vsignaling_function); | |
1302 | Fterpri (Qexternal_debugging_output); | |
1303 | Fkill_emacs (make_number (-1)); | |
7ee32cda | 1304 | } |
284f4730 JB |
1305 | else |
1306 | { | |
04d8c47d | 1307 | clear_message (1, 0); |
284f4730 | 1308 | Fdiscard_input (); |
dc4854ce | 1309 | message_log_maybe_newline (); |
284f4730 | 1310 | bitch_at_user (); |
c60ee5e7 | 1311 | |
04d8c47d RS |
1312 | print_error_message (data, Qt, context, Vsignaling_function); |
1313 | } | |
a1341f75 | 1314 | |
dc4854ce | 1315 | Vsignaling_function = Qnil; |
284f4730 JB |
1316 | } |
1317 | \f | |
1318 | Lisp_Object command_loop_1 (); | |
1319 | Lisp_Object command_loop_2 (); | |
1320 | Lisp_Object top_level_1 (); | |
1321 | ||
1322 | /* Entry to editor-command-loop. | |
1323 | This level has the catches for exiting/returning to editor command loop. | |
1324 | It returns nil to exit recursive edit, t to abort it. */ | |
1325 | ||
1326 | Lisp_Object | |
1327 | command_loop () | |
1328 | { | |
1329 | if (command_loop_level > 0 || minibuf_level > 0) | |
1330 | { | |
07ba902e RS |
1331 | Lisp_Object val; |
1332 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1333 | executing_kbd_macro = Qnil; |
68c46464 | 1334 | return val; |
284f4730 JB |
1335 | } |
1336 | else | |
1337 | while (1) | |
1338 | { | |
1339 | internal_catch (Qtop_level, top_level_1, Qnil); | |
b3e6f69c | 1340 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c98e2d50 KL |
1341 | /* Reset single_kboard in case top-level set it while |
1342 | evaluating an -f option, or we are stuck there for some | |
1343 | other reason. */ | |
1344 | any_kboard_state (); | |
b3e6f69c | 1345 | #endif |
284f4730 | 1346 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1347 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1348 | |
284f4730 JB |
1349 | /* End of file in -batch run causes exit here. */ |
1350 | if (noninteractive) | |
1351 | Fkill_emacs (Qt); | |
1352 | } | |
1353 | } | |
1354 | ||
1355 | /* Here we catch errors in execution of commands within the | |
1356 | editing loop, and reenter the editing loop. | |
1357 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1358 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1359 | returned due to end of file (or end of kbd macro). */ |
1360 | ||
1361 | Lisp_Object | |
1362 | command_loop_2 () | |
1363 | { | |
1364 | register Lisp_Object val; | |
1365 | ||
1366 | do | |
1367 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1368 | while (!NILP (val)); | |
1369 | ||
1370 | return Qnil; | |
1371 | } | |
1372 | ||
1373 | Lisp_Object | |
1374 | top_level_2 () | |
1375 | { | |
1376 | return Feval (Vtop_level); | |
1377 | } | |
1378 | ||
1379 | Lisp_Object | |
1380 | top_level_1 () | |
1381 | { | |
1382 | /* On entry to the outer level, run the startup file */ | |
1383 | if (!NILP (Vtop_level)) | |
1384 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1385 | else if (!NILP (Vpurify_flag)) | |
1386 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1387 | else | |
1388 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1389 | return Qnil; | |
1390 | } | |
1391 | ||
1392 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1393 | doc: /* Exit all recursive editing levels. */) |
1394 | () | |
284f4730 | 1395 | { |
d148e14d | 1396 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
1397 | if (display_hourglass_p) |
1398 | cancel_hourglass (); | |
2c9cf2c8 | 1399 | #endif |
96edd5d4 | 1400 | |
a25e44b2 JD |
1401 | /* Unblock input if we enter with input blocked. This may happen if |
1402 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1403 | while (INPUT_BLOCKED_P) | |
1404 | UNBLOCK_INPUT; | |
1405 | ||
8c907a56 | 1406 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1407 | } |
1408 | ||
1409 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1410 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1411 | () | |
284f4730 JB |
1412 | { |
1413 | if (command_loop_level > 0 || minibuf_level > 0) | |
1414 | Fthrow (Qexit, Qnil); | |
1415 | ||
1416 | error ("No recursive edit is in progress"); | |
8c907a56 | 1417 | return Qnil; |
284f4730 JB |
1418 | } |
1419 | ||
1420 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1421 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1422 | () | |
284f4730 JB |
1423 | { |
1424 | if (command_loop_level > 0 || minibuf_level > 0) | |
1425 | Fthrow (Qexit, Qt); | |
1426 | ||
1427 | error ("No recursive edit is in progress"); | |
8c907a56 | 1428 | return Qnil; |
284f4730 JB |
1429 | } |
1430 | \f | |
ae372f41 | 1431 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c5b76d6c CY |
1432 | |
1433 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use | |
1434 | of this function. */ | |
1435 | ||
1436 | static Lisp_Object | |
1437 | tracking_off (old_value) | |
1438 | Lisp_Object old_value; | |
1439 | { | |
1440 | do_mouse_tracking = old_value; | |
1441 | if (NILP (old_value)) | |
1442 | { | |
1443 | /* Redisplay may have been preempted because there was input | |
1444 | available, and it assumes it will be called again after the | |
1445 | input has been processed. If the only input available was | |
1446 | the sort that we have just disabled, then we need to call | |
1447 | redisplay. */ | |
1448 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) | |
1449 | { | |
1450 | redisplay_preserve_echo_area (6); | |
1451 | get_input_pending (&input_pending, | |
1452 | READABLE_EVENTS_DO_TIMERS_NOW); | |
1453 | } | |
1454 | } | |
1455 | return Qnil; | |
1456 | } | |
1457 | ||
1458 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
1459 | doc: /* Evaluate BODY with mouse movement events enabled. | |
1460 | Within a `track-mouse' form, mouse motion generates input events that | |
1461 | you can read with `read-event'. | |
1462 | Normally, mouse motion is ignored. | |
d514369d | 1463 | usage: (track-mouse BODY...) */) |
c5b76d6c CY |
1464 | (args) |
1465 | Lisp_Object args; | |
1466 | { | |
1467 | int count = SPECPDL_INDEX (); | |
1468 | Lisp_Object val; | |
1469 | ||
1470 | record_unwind_protect (tracking_off, do_mouse_tracking); | |
1471 | ||
1472 | do_mouse_tracking = Qt; | |
1473 | ||
1474 | val = Fprogn (args); | |
1475 | return unbind_to (count, val); | |
1476 | } | |
1477 | ||
1478 | /* If mouse has moved on some frame, return one of those frames. | |
3b0cdcef KS |
1479 | |
1480 | Return 0 otherwise. | |
1481 | ||
1482 | If ignore_mouse_drag_p is non-zero, ignore (implicit) mouse movement | |
1483 | after resizing the tool-bar window. */ | |
1484 | ||
1485 | int ignore_mouse_drag_p; | |
c5b76d6c CY |
1486 | |
1487 | static FRAME_PTR | |
1488 | some_mouse_moved () | |
1489 | { | |
1490 | Lisp_Object tail, frame; | |
1491 | ||
3b0cdcef KS |
1492 | if (ignore_mouse_drag_p) |
1493 | { | |
e2bb07db | 1494 | /* ignore_mouse_drag_p = 0; */ |
3b0cdcef KS |
1495 | return 0; |
1496 | } | |
1497 | ||
c5b76d6c CY |
1498 | FOR_EACH_FRAME (tail, frame) |
1499 | { | |
1500 | if (XFRAME (frame)->mouse_moved) | |
1501 | return XFRAME (frame); | |
1502 | } | |
1503 | ||
1504 | return 0; | |
1505 | } | |
1506 | ||
ae372f41 | 1507 | #endif /* HAVE_MOUSE || HAVE_GPM */ |
c5b76d6c | 1508 | \f |
284f4730 JB |
1509 | /* This is the actual command reading loop, |
1510 | sans error-handling encapsulation. */ | |
1511 | ||
a7b772c1 GM |
1512 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1513 | int, int, int)); | |
1514 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1515 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1516 | |
0af912f0 JD |
1517 | /* Cancel hourglass from protect_unwind. |
1518 | ARG is not used. */ | |
d148e14d | 1519 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1520 | static Lisp_Object |
1521 | cancel_hourglass_unwind (arg) | |
1522 | Lisp_Object arg; | |
1523 | { | |
1524 | cancel_hourglass (); | |
3a0ae1f3 | 1525 | return Qnil; |
0af912f0 | 1526 | } |
bb8db7e1 | 1527 | #endif |
0af912f0 | 1528 | |
284f4730 JB |
1529 | Lisp_Object |
1530 | command_loop_1 () | |
1531 | { | |
03cee6ae GM |
1532 | Lisp_Object cmd; |
1533 | int lose; | |
284f4730 JB |
1534 | int nonundocount; |
1535 | Lisp_Object keybuf[30]; | |
1536 | int i; | |
a53fe666 | 1537 | int prev_modiff = 0; |
8c907a56 | 1538 | struct buffer *prev_buffer = NULL; |
b3e6f69c | 1539 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c5fdd383 | 1540 | #ifdef MULTI_KBOARD |
1e8bd3da | 1541 | int was_locked = single_kboard; |
bded54dd | 1542 | #endif |
033b73e2 | 1543 | #endif |
80d4c824 | 1544 | int already_adjusted = 0; |
284f4730 | 1545 | |
d9b641bb | 1546 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1547 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1548 | Vdeactivate_mark = Qnil; |
284f4730 | 1549 | waiting_for_input = 0; |
df0f2ba1 | 1550 | cancel_echoing (); |
284f4730 | 1551 | |
284f4730 | 1552 | nonundocount = 0; |
284f4730 | 1553 | this_command_key_count = 0; |
63020c46 | 1554 | this_command_key_count_reset = 0; |
6321824f | 1555 | this_single_command_key_start = 0; |
284f4730 | 1556 | |
325309f5 | 1557 | if (NILP (Vmemory_full)) |
59aadc81 | 1558 | { |
10ffcb64 RS |
1559 | /* Make sure this hook runs after commands that get errors and |
1560 | throw to top level. */ | |
1561 | /* Note that the value cell will never directly contain nil | |
1562 | if the symbol is a local variable. */ | |
1563 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1564 | safe_run_hooks (Qpost_command_hook); | |
1565 | ||
1566 | /* If displaying a message, resize the echo area window to fit | |
1567 | that message's size exactly. */ | |
1568 | if (!NILP (echo_area_buffer[0])) | |
1569 | resize_echo_area_exactly (); | |
1570 | ||
1571 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1572 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1573 | } |
1574 | ||
51d5a2c9 | 1575 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1576 | current_kboard->Vlast_command = Vthis_command; |
1577 | current_kboard->Vreal_last_command = real_this_command; | |
d0d3a311 MR |
1578 | if (!CONSP (last_command_char)) |
1579 | current_kboard->Vlast_repeatable_command = real_this_command; | |
51d5a2c9 | 1580 | |
284f4730 JB |
1581 | while (1) |
1582 | { | |
788f89eb | 1583 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1584 | Fkill_emacs (Qnil); |
1585 | ||
284f4730 JB |
1586 | /* Make sure the current window's buffer is selected. */ |
1587 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1588 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1589 | ||
1590 | /* Display any malloc warning that just came out. Use while because | |
1591 | displaying one warning can cause another. */ | |
1592 | ||
1593 | while (pending_malloc_warning) | |
1594 | display_malloc_warning (); | |
1595 | ||
86e5706b RS |
1596 | Vdeactivate_mark = Qnil; |
1597 | ||
284f4730 | 1598 | /* If minibuffer on and echo area in use, |
00392ce6 | 1599 | wait a short time and redraw minibuffer. */ |
284f4730 | 1600 | |
7ee32cda | 1601 | if (minibuf_level |
985f9f66 | 1602 | && !NILP (echo_area_buffer[0]) |
6a8128ef CY |
1603 | && EQ (minibuf_window, echo_area_window) |
1604 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1605 | { |
f1bed6d8 RS |
1606 | /* Bind inhibit-quit to t so that C-g gets read in |
1607 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1608 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1609 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1610 | |
6a8128ef | 1611 | sit_for (Vminibuffer_message_timeout, 0, 2); |
666dc232 | 1612 | |
e6aa7813 | 1613 | /* Clear the echo area. */ |
301738ed | 1614 | message2 (0, 0, 0); |
cdb9d665 | 1615 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1616 | |
db08707d RS |
1617 | unbind_to (count, Qnil); |
1618 | ||
e6aa7813 | 1619 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1620 | if (!NILP (Vquit_flag)) |
1621 | { | |
1622 | Vquit_flag = Qnil; | |
24597608 | 1623 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1624 | } |
1625 | } | |
1626 | ||
8f805655 | 1627 | #if 0 |
8f805655 JB |
1628 | /* Select the frame that the last event came from. Usually, |
1629 | switch-frame events will take care of this, but if some lisp | |
1630 | code swallows a switch-frame event, we'll fix things up here. | |
1631 | Is this a good idea? */ | |
8c18cbfb | 1632 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1633 | && !EQ (internal_last_event_frame, selected_frame)) |
f840fb39 | 1634 | Fselect_frame (internal_last_event_frame); |
284f4730 | 1635 | #endif |
48e416d4 RS |
1636 | /* If it has changed current-menubar from previous value, |
1637 | really recompute the menubar from the value. */ | |
a646e520 RS |
1638 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1639 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1640 | call0 (Qrecompute_lucid_menubar); |
1641 | ||
71918b75 RS |
1642 | before_command_key_count = this_command_key_count; |
1643 | before_command_echo_length = echo_length (); | |
1644 | ||
d5eecefb RS |
1645 | Vthis_command = Qnil; |
1646 | real_this_command = Qnil; | |
9d138659 | 1647 | Vthis_original_command = Qnil; |
025ae953 | 1648 | Vthis_command_keys_shift_translated = Qnil; |
d7437ef6 | 1649 | |
8f805655 | 1650 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1651 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1652 | Qnil, 0, 1, 1); |
8f805655 | 1653 | |
6fac1409 | 1654 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1655 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1656 | Fkill_emacs (Qnil); |
6fac1409 RS |
1657 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1658 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1659 | ||
8f805655 JB |
1660 | ++num_input_keys; |
1661 | ||
284f4730 JB |
1662 | /* Now we have read a key sequence of length I, |
1663 | or else I is 0 and we found end of file. */ | |
1664 | ||
1665 | if (i == 0) /* End of file -- happens only in */ | |
1666 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1667 | /* -1 means read_key_sequence got a menu that was rejected. |
1668 | Just loop around and read another command. */ | |
1669 | if (i == -1) | |
1670 | { | |
1671 | cancel_echoing (); | |
1672 | this_command_key_count = 0; | |
63020c46 | 1673 | this_command_key_count_reset = 0; |
6321824f | 1674 | this_single_command_key_start = 0; |
ff4b06d3 | 1675 | goto finalize; |
dcc408a0 | 1676 | } |
284f4730 | 1677 | |
284f4730 JB |
1678 | last_command_char = keybuf[i - 1]; |
1679 | ||
75c0b143 RS |
1680 | /* If the previous command tried to force a specific window-start, |
1681 | forget about that, in case this command moves point far away | |
c422836d KH |
1682 | from that position. But also throw away beg_unchanged and |
1683 | end_unchanged information in that case, so that redisplay will | |
1684 | update the whole window properly. */ | |
1685 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1686 | { | |
9351ebd0 | 1687 | struct buffer *b; |
c422836d | 1688 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1689 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1690 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1691 | } |
75c0b143 | 1692 | |
284f4730 | 1693 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1694 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1695 | { |
1696 | if (!NILP (Vquit_flag)) | |
1697 | { | |
ce0d2858 | 1698 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1699 | QUIT; /* Make some noise. */ |
1700 | /* Will return since macro now empty. */ | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1705 | cases identified below. */ |
86e5706b RS |
1706 | prev_buffer = current_buffer; |
1707 | prev_modiff = MODIFF; | |
8746da95 | 1708 | last_point_position = PT; |
bb0e1d19 | 1709 | last_point_position_window = selected_window; |
18cd2eeb | 1710 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1711 | |
adf5cb9c KH |
1712 | /* By default, we adjust point to a boundary of a region that |
1713 | has such a property that should be treated intangible | |
1714 | (e.g. composition, display). But, some commands will set | |
1715 | this variable differently. */ | |
1716 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1717 | |
be2488ca GM |
1718 | /* Process filters and timers may have messed with deactivate-mark. |
1719 | reset it before we execute the command. */ | |
1720 | Vdeactivate_mark = Qnil; | |
1721 | ||
8b9940e6 KS |
1722 | /* Remap command through active keymaps */ |
1723 | Vthis_original_command = cmd; | |
a34cb674 | 1724 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1725 | { |
1726 | Lisp_Object cmd1; | |
9be34f7f | 1727 | if (cmd1 = Fcommand_remapping (cmd, Qnil, Qnil), !NILP (cmd1)) |
8b9940e6 KS |
1728 | cmd = cmd1; |
1729 | } | |
1730 | ||
284f4730 JB |
1731 | /* Execute the command. */ |
1732 | ||
d5eecefb RS |
1733 | Vthis_command = cmd; |
1734 | real_this_command = cmd; | |
a98ea3f9 RS |
1735 | /* Note that the value cell will never directly contain nil |
1736 | if the symbol is a local variable. */ | |
e98a93eb | 1737 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1738 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1739 | |
2764bebd RS |
1740 | already_adjusted = 0; |
1741 | ||
d5eecefb | 1742 | if (NILP (Vthis_command)) |
284f4730 JB |
1743 | { |
1744 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1745 | Lisp_Object keys = Fvector (i, keybuf); |
1746 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1747 | bitch_at_user (); |
1bf0e604 | 1748 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1749 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1750 | update_mode_lines = 1; |
d8bcf58e | 1751 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1752 | } |
1753 | else | |
1754 | { | |
6d0867e5 | 1755 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1756 | { |
75045dcb RS |
1757 | /* In case we jump to directly_done. */ |
1758 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1759 | ||
284f4730 JB |
1760 | /* Recognize some common commands in common situations and |
1761 | do them directly. */ | |
025ae953 CY |
1762 | if (EQ (Vthis_command, Qforward_char) && PT < ZV |
1763 | && NILP (Vthis_command_keys_shift_translated) | |
1764 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1765 | { |
51ad8a68 | 1766 | struct Lisp_Char_Table *dp |
284f4730 | 1767 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1768 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1769 | SET_PT (PT + 1); |
d86ba5c5 RS |
1770 | if (! NILP (Vpost_command_hook)) |
1771 | /* Put this before calling adjust_point_for_property | |
1772 | so it will only get called once in any case. */ | |
1773 | goto directly_done; | |
22b94eeb RS |
1774 | if (current_buffer == prev_buffer |
1775 | && last_point_position != PT | |
1776 | && NILP (Vdisable_point_adjustment) | |
1777 | && NILP (Vglobal_disable_point_adjustment)) | |
1778 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1779 | already_adjusted = 1; |
1780 | if (PT == last_point_position + 1 | |
1781 | && (dp | |
1782 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1783 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1784 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1785 | && (lose >= 0x20 && lose < 0x7f))) | |
1786 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1787 | /* To extract the case of continuation on |
1788 | wide-column characters. */ | |
8b461910 | 1789 | && ASCII_BYTE_P (lose) |
284f4730 JB |
1790 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1791 | >= MODIFF) | |
598ba4c7 RS |
1792 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1793 | >= OVERLAY_MODIFF) | |
284f4730 | 1794 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1795 | == PT - 1) |
284f4730 JB |
1796 | && !windows_or_buffers_changed |
1797 | && EQ (current_buffer->selective_display, Qnil) | |
1798 | && !detect_input_pending () | |
962ae636 | 1799 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1800 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1801 | direct_output_forward_char (1); |
284f4730 JB |
1802 | goto directly_done; |
1803 | } | |
025ae953 CY |
1804 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV |
1805 | && NILP (Vthis_command_keys_shift_translated) | |
1806 | && !CONSP (Vtransient_mark_mode)) | |
284f4730 | 1807 | { |
51ad8a68 | 1808 | struct Lisp_Char_Table *dp |
284f4730 | 1809 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1810 | SET_PT (PT - 1); |
aaf35234 | 1811 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1812 | if (! NILP (Vpost_command_hook)) |
1813 | goto directly_done; | |
22b94eeb RS |
1814 | if (current_buffer == prev_buffer |
1815 | && last_point_position != PT | |
1816 | && NILP (Vdisable_point_adjustment) | |
1817 | && NILP (Vglobal_disable_point_adjustment)) | |
1818 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1819 | already_adjusted = 1; |
1820 | if (PT == last_point_position - 1 | |
1821 | && (dp | |
1822 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1823 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1824 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1825 | && (lose >= 0x20 && lose < 0x7f))) | |
1826 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1827 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1828 | >= MODIFF) | |
598ba4c7 RS |
1829 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1830 | >= OVERLAY_MODIFF) | |
284f4730 | 1831 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1832 | == PT + 1) |
284f4730 JB |
1833 | && !windows_or_buffers_changed |
1834 | && EQ (current_buffer->selective_display, Qnil) | |
1835 | && !detect_input_pending () | |
962ae636 | 1836 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1837 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1838 | direct_output_forward_char (-1); |
284f4730 JB |
1839 | goto directly_done; |
1840 | } | |
d5eecefb | 1841 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 SM |
1842 | /* Try this optimization only on char keystrokes. */ |
1843 | && NATNUMP (last_command_char) | |
1844 | && CHAR_VALID_P (XFASTINT (last_command_char), 0)) | |
284f4730 | 1845 | { |
d86ba5c5 RS |
1846 | unsigned int c |
1847 | = translate_char (Vtranslation_table_for_input, | |
8f924df7 | 1848 | XFASTINT (last_command_char)); |
fc9cce4e | 1849 | int value; |
ce0d2858 | 1850 | if (NILP (Vexecuting_kbd_macro) |
fc9cce4e | 1851 | && !EQ (minibuf_window, selected_window)) |
284f4730 JB |
1852 | { |
1853 | if (!nonundocount || nonundocount >= 20) | |
1854 | { | |
1855 | Fundo_boundary (); | |
1856 | nonundocount = 0; | |
1857 | } | |
1858 | nonundocount++; | |
1859 | } | |
c60ee5e7 | 1860 | |
fc9cce4e RS |
1861 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1862 | < MODIFF) | |
598ba4c7 RS |
1863 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1864 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1865 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1866 | != PT) | |
4c61f38e | 1867 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1868 | || windows_or_buffers_changed |
1869 | || !EQ (current_buffer->selective_display, Qnil) | |
1870 | || detect_input_pending () | |
962ae636 | 1871 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1872 | || !NILP (Vexecuting_kbd_macro)); |
c60ee5e7 | 1873 | |
fc9cce4e | 1874 | value = internal_self_insert (c, 0); |
7ee32cda | 1875 | |
fc9cce4e RS |
1876 | if (value == 2) |
1877 | nonundocount = 0; | |
1878 | ||
294d643a RS |
1879 | if (! NILP (Vpost_command_hook)) |
1880 | /* Put this before calling adjust_point_for_property | |
1881 | so it will only get called once in any case. */ | |
1882 | goto directly_done; | |
1883 | ||
7ee32cda GM |
1884 | /* VALUE == 1 when AFTER-CHANGE functions are |
1885 | installed which is the case most of the time | |
1886 | because FONT-LOCK installs one. */ | |
1887 | if (!lose && !value) | |
e35b6123 | 1888 | direct_output_for_insert (c); |
284f4730 JB |
1889 | goto directly_done; |
1890 | } | |
1891 | } | |
1892 | ||
1893 | /* Here for a command that isn't executed directly */ | |
1894 | ||
0af912f0 | 1895 | { |
d148e14d | 1896 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1897 | int scount = SPECPDL_INDEX (); |
1898 | ||
1899 | if (display_hourglass_p | |
ce0d2858 | 1900 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1901 | { |
1902 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1903 | start_hourglass (); | |
1904 | } | |
7ee32cda GM |
1905 | #endif |
1906 | ||
0af912f0 JD |
1907 | nonundocount = 0; |
1908 | if (NILP (current_kboard->Vprefix_arg)) | |
1909 | Fundo_boundary (); | |
1910 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 | 1911 | |
d148e14d | 1912 | #ifdef HAVE_WINDOW_SYSTEM |
4fbcc9b1 PJ |
1913 | /* Do not check display_hourglass_p here, because |
1914 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1915 | hourglass cursor anyway. |
1916 | But don't cancel the hourglass within a macro | |
1917 | just because a command in the macro finishes. */ | |
ce0d2858 | 1918 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1919 | unbind_to (scount, Qnil); |
d0c48478 | 1920 | #endif |
0af912f0 | 1921 | } |
284f4730 | 1922 | } |
a764a753 | 1923 | directly_done: ; |
75045dcb | 1924 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1925 | |
84ee6048 RS |
1926 | /* Note that the value cell will never directly contain nil |
1927 | if the symbol is a local variable. */ | |
1928 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1929 | safe_run_hooks (Qpost_command_hook); | |
1930 | ||
8f12e41d GM |
1931 | /* If displaying a message, resize the echo area window to fit |
1932 | that message's size exactly. */ | |
1933 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1934 | resize_echo_area_exactly (); |
8f12e41d | 1935 | |
84ee6048 RS |
1936 | if (!NILP (Vdeferred_action_list)) |
1937 | safe_run_hooks (Qdeferred_action_function); | |
1938 | ||
284f4730 | 1939 | /* If there is a prefix argument, |
6c7178b9 KH |
1940 | 1) We don't want Vlast_command to be ``universal-argument'' |
1941 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1942 | 2) we want to leave echoing on so that the prefix will be |
1943 | echoed as part of this key sequence, so don't call | |
1944 | cancel_echoing, and | |
1945 | 3) we want to leave this_command_key_count non-zero, so that | |
1946 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1947 | not echo it a second time. |
1948 | ||
1949 | If the command didn't actually create a prefix arg, | |
1950 | but is merely a frame event that is transparent to prefix args, | |
1951 | then the above doesn't apply. */ | |
1952 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1953 | { |
d5eecefb RS |
1954 | current_kboard->Vlast_command = Vthis_command; |
1955 | current_kboard->Vreal_last_command = real_this_command; | |
d0d3a311 MR |
1956 | if (!CONSP (last_command_char)) |
1957 | current_kboard->Vlast_repeatable_command = real_this_command; | |
284f4730 JB |
1958 | cancel_echoing (); |
1959 | this_command_key_count = 0; | |
63020c46 | 1960 | this_command_key_count_reset = 0; |
6321824f | 1961 | this_single_command_key_start = 0; |
284f4730 | 1962 | } |
86e5706b | 1963 | |
88ce066e | 1964 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b | 1965 | { |
12679e05 CY |
1966 | /* In Emacs 22, setting transient-mark-mode to `only' was a |
1967 | way of turning it on for just one command. This usage is | |
1968 | obsolete, but support it anyway. */ | |
1969 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1970 | Vtransient_mark_mode = Qnil; | |
1971 | else if (EQ (Vtransient_mark_mode, Qonly)) | |
1972 | Vtransient_mark_mode = Qidentity; | |
1973 | ||
5c4cc82a SM |
1974 | if (!NILP (Vdeactivate_mark)) |
1975 | call0 (Qdeactivate_mark); | |
86e5706b RS |
1976 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) |
1977 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1978 | } | |
ff4b06d3 KH |
1979 | |
1980 | finalize: | |
adf5cb9c KH |
1981 | |
1982 | if (current_buffer == prev_buffer | |
1983 | && last_point_position != PT | |
1984 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1985 | && NILP (Vglobal_disable_point_adjustment) |
1986 | && !already_adjusted) | |
2a026b04 | 1987 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1988 | |
ff4b06d3 KH |
1989 | /* Install chars successfully executed in kbd macro. */ |
1990 | ||
d8bcf58e KH |
1991 | if (!NILP (current_kboard->defining_kbd_macro) |
1992 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 | 1993 | finalize_kbd_macro_chars (); |
b3e6f69c | 1994 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c5fdd383 | 1995 | #ifdef MULTI_KBOARD |
604ccd1d | 1996 | if (!was_locked) |
b3e6f69c KL |
1997 | any_kboard_state (); |
1998 | #endif | |
ff4b06d3 | 1999 | #endif |
284f4730 JB |
2000 | } |
2001 | } | |
1c9784c9 | 2002 | |
adf5cb9c KH |
2003 | extern Lisp_Object Qcomposition, Qdisplay; |
2004 | ||
2005 | /* Adjust point to a boundary of a region that has such a property | |
2006 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
2007 | `composition', `display' and `invisible' properties. |
2008 | LAST_PT is the last position of point. */ | |
adf5cb9c | 2009 | |
14e40288 SM |
2010 | extern Lisp_Object Qafter_string, Qbefore_string; |
2011 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
2012 | ||
adf5cb9c | 2013 | static void |
2a026b04 | 2014 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 2015 | int last_pt; |
2a026b04 | 2016 | int modified; |
adf5cb9c | 2017 | { |
2b95772c | 2018 | EMACS_INT beg, end; |
7e16ef60 SM |
2019 | Lisp_Object val, overlay, tmp; |
2020 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 2021 | int orig_pt = PT; |
adf5cb9c | 2022 | |
0bbdffbd SM |
2023 | /* FIXME: cycling is probably not necessary because these properties |
2024 | can't be usefully combined anyway. */ | |
7e16ef60 | 2025 | while (check_composition || check_display || check_invisible) |
adf5cb9c | 2026 | { |
5c4cc82a | 2027 | /* FIXME: check `intangible'. */ |
adf5cb9c KH |
2028 | if (check_composition |
2029 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
2030 | && get_property_and_range (PT, Qcomposition, &val, &beg, &end, Qnil) |
2031 | && COMPOSITION_VALID_P (beg, end, val) | |
2032 | && beg < PT /* && end > PT <- It's always the case. */ | |
2033 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 2034 | { |
14e40288 | 2035 | xassert (end > PT); |
7e16ef60 | 2036 | SET_PT (PT < last_pt ? beg : end); |
14e40288 | 2037 | check_display = check_invisible = 1; |
adf5cb9c KH |
2038 | } |
2039 | check_composition = 0; | |
2040 | if (check_display | |
2041 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
2042 | && !NILP (val = get_char_property_and_overlay |
2043 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 2044 | && display_prop_intangible_p (val) |
7e16ef60 SM |
2045 | && (!OVERLAYP (overlay) |
2046 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
2047 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
2048 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
2049 | && (beg < PT /* && end > PT <- It's always the case. */ |
2050 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 2051 | { |
14e40288 | 2052 | xassert (end > PT); |
4ca39724 KS |
2053 | SET_PT (PT < last_pt |
2054 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
2055 | : end); | |
14e40288 | 2056 | check_composition = check_invisible = 1; |
adf5cb9c KH |
2057 | } |
2058 | check_display = 0; | |
14e40288 | 2059 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 2060 | { |
14e40288 SM |
2061 | int inv, ellipsis = 0; |
2062 | beg = end = PT; | |
2063 | ||
2064 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
2065 | while (end < ZV | |
2066 | && !NILP (val = get_char_property_and_overlay | |
2067 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
2068 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2069 | { | |
2070 | ellipsis = ellipsis || inv > 1 | |
2071 | || (OVERLAYP (overlay) | |
2072 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2073 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2074 | tmp = Fnext_single_char_property_change | |
2075 | (make_number (end), Qinvisible, Qnil, Qnil); | |
2076 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
2077 | } | |
2078 | while (beg > BEGV | |
2079 | && !NILP (val = get_char_property_and_overlay | |
2080 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
2081 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
2082 | { | |
2083 | ellipsis = ellipsis || inv > 1 | |
2084 | || (OVERLAYP (overlay) | |
2085 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
2086 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2087 | tmp = Fprevious_single_char_property_change | |
2088 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
2089 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
2090 | } | |
c60ee5e7 | 2091 | |
14e40288 SM |
2092 | /* Move away from the inside area. */ |
2093 | if (beg < PT && end > PT) | |
2094 | { | |
0bbdffbd SM |
2095 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
2096 | /* We haven't moved yet (so we don't need to fear | |
2097 | infinite-looping) and we were outside the range | |
2098 | before (so either end of the range still corresponds | |
2099 | to a move in the right direction): pretend we moved | |
2100 | less than we actually did, so that we still have | |
2101 | more freedom below in choosing which end of the range | |
2102 | to go to. */ | |
9465a86c | 2103 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
2104 | /* We either have moved already or the last point |
2105 | was already in the range: we don't get to choose | |
2106 | which end of the range we have to go to. */ | |
2107 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
2108 | check_composition = check_display = 1; |
2109 | } | |
6b61353c KH |
2110 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
2111 | the point to something other than its argument, due to | |
2112 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 2113 | xassert (PT == beg || PT == end); |
6b61353c KH |
2114 | #endif |
2115 | ||
2a026b04 KH |
2116 | /* Pretend the area doesn't exist if the buffer is not |
2117 | modified. */ | |
2118 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
2119 | { |
2120 | if (last_pt == beg && PT == end && end < ZV) | |
2121 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
2122 | else if (last_pt == end && PT == beg && beg > BEGV) | |
2123 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
2124 | else if (PT == ((PT < last_pt) ? beg : end)) | |
2125 | /* We've already moved as far as we can. Trying to go | |
2126 | to the other end would mean moving backwards and thus | |
2127 | could lead to an infinite loop. */ | |
2128 | ; | |
2129 | else if (val = get_pos_property (make_number (PT), | |
2130 | Qinvisible, Qnil), | |
2131 | TEXT_PROP_MEANS_INVISIBLE (val) | |
2132 | && (val = get_pos_property | |
2133 | (make_number (PT == beg ? end : beg), | |
2134 | Qinvisible, Qnil), | |
2135 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
2136 | (check_composition = check_display = 1, | |
2137 | SET_PT (PT == beg ? end : beg)); | |
2138 | } | |
7e16ef60 SM |
2139 | } |
2140 | check_invisible = 0; | |
adf5cb9c KH |
2141 | } |
2142 | } | |
2143 | ||
0bc3db2b RS |
2144 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
2145 | ||
2146 | static Lisp_Object | |
2147 | safe_run_hooks_1 (hook) | |
2148 | Lisp_Object hook; | |
2149 | { | |
5e093f44 RS |
2150 | if (NILP (Vrun_hooks)) |
2151 | return Qnil; | |
0bc3db2b RS |
2152 | return call1 (Vrun_hooks, Vinhibit_quit); |
2153 | } | |
2154 | ||
2155 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
2156 | ||
2157 | static Lisp_Object | |
2158 | safe_run_hooks_error (data) | |
2159 | Lisp_Object data; | |
2160 | { | |
adec392e SM |
2161 | Lisp_Object args[3]; |
2162 | args[0] = build_string ("Error in %s: %s"); | |
2163 | args[1] = Vinhibit_quit; | |
2164 | args[2] = data; | |
2165 | Fmessage (3, args); | |
30690496 | 2166 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2167 | } |
2168 | ||
1c9784c9 KH |
2169 | /* If we get an error while running the hook, cause the hook variable |
2170 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2171 | to mysteriously evaporate. */ | |
0bc3db2b | 2172 | |
68f297c5 | 2173 | void |
1c9784c9 | 2174 | safe_run_hooks (hook) |
a98ea3f9 | 2175 | Lisp_Object hook; |
1c9784c9 | 2176 | { |
aed13378 | 2177 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2178 | specbind (Qinhibit_quit, hook); |
2179 | ||
e702932d | 2180 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2181 | |
2182 | unbind_to (count, Qnil); | |
2183 | } | |
8a9f5d3c | 2184 | |
284f4730 | 2185 | \f |
8a9f5d3c GM |
2186 | /* Number of seconds between polling for input. This is a Lisp |
2187 | variable that can be bound. */ | |
2188 | ||
31ade731 | 2189 | EMACS_INT polling_period; |
284f4730 | 2190 | |
eb8c3be9 | 2191 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2192 | |
284f4730 JB |
2193 | int poll_suppress_count; |
2194 | ||
8a9f5d3c GM |
2195 | /* Asynchronous timer for polling. */ |
2196 | ||
2197 | struct atimer *poll_timer; | |
2198 | ||
284f4730 | 2199 | |
36922b18 RS |
2200 | #ifdef POLL_FOR_INPUT |
2201 | ||
8a9f5d3c GM |
2202 | /* Poll for input, so what we catch a C-g if it comes in. This |
2203 | function is called from x_make_frame_visible, see comment | |
2204 | there. */ | |
284f4730 | 2205 | |
8a9f5d3c GM |
2206 | void |
2207 | poll_for_input_1 () | |
284f4730 | 2208 | { |
9ac0d9e0 JB |
2209 | if (interrupt_input_blocked == 0 |
2210 | && !waiting_for_input) | |
2211 | read_avail_input (0); | |
284f4730 JB |
2212 | } |
2213 | ||
8a9f5d3c GM |
2214 | /* Timer callback function for poll_timer. TIMER is equal to |
2215 | poll_timer. */ | |
2216 | ||
2217 | void | |
2218 | poll_for_input (timer) | |
2219 | struct atimer *timer; | |
2220 | { | |
2221 | if (poll_suppress_count == 0) | |
a42bf890 YM |
2222 | #ifdef SYNC_INPUT |
2223 | interrupt_input_pending = 1; | |
2224 | #else | |
8a9f5d3c | 2225 | poll_for_input_1 (); |
a42bf890 | 2226 | #endif |
8a9f5d3c GM |
2227 | } |
2228 | ||
2229 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2230 | |
2231 | /* Begin signals to poll for input, if they are appropriate. | |
2232 | This function is called unconditionally from various places. */ | |
2233 | ||
07a59269 | 2234 | void |
284f4730 JB |
2235 | start_polling () |
2236 | { | |
2237 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2238 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2239 | but read_socket_hook is not global anymore. Let's pretend that | |
2240 | it's always set. */ | |
2241 | if (!interrupt_input) | |
284f4730 | 2242 | { |
8a9f5d3c GM |
2243 | /* Turn alarm handling on unconditionally. It might have |
2244 | been turned off in process.c. */ | |
2245 | turn_on_atimers (1); | |
c60ee5e7 | 2246 | |
8a9f5d3c GM |
2247 | /* If poll timer doesn't exist, are we need one with |
2248 | a different interval, start a new one. */ | |
2249 | if (poll_timer == NULL | |
2250 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2251 | { |
8a9f5d3c GM |
2252 | EMACS_TIME interval; |
2253 | ||
2254 | if (poll_timer) | |
2255 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2256 | |
8a9f5d3c GM |
2257 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2258 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2259 | poll_for_input, NULL); | |
284f4730 | 2260 | } |
8a9f5d3c GM |
2261 | |
2262 | /* Let the timer's callback function poll for input | |
2263 | if this becomes zero. */ | |
2264 | --poll_suppress_count; | |
284f4730 JB |
2265 | } |
2266 | #endif | |
2267 | } | |
2268 | ||
1d3195db RS |
2269 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2270 | ||
2271 | int | |
2272 | input_polling_used () | |
2273 | { | |
2274 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2275 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2276 | but read_socket_hook is not global anymore. Let's pretend that | |
2277 | it's always set. */ | |
2278 | return !interrupt_input; | |
1d3195db RS |
2279 | #else |
2280 | return 0; | |
2281 | #endif | |
2282 | } | |
2283 | ||
284f4730 JB |
2284 | /* Turn off polling. */ |
2285 | ||
07a59269 | 2286 | void |
284f4730 JB |
2287 | stop_polling () |
2288 | { | |
2289 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2290 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2291 | but read_socket_hook is not global anymore. Let's pretend that | |
2292 | it's always set. */ | |
2293 | if (!interrupt_input) | |
8a9f5d3c | 2294 | ++poll_suppress_count; |
284f4730 JB |
2295 | #endif |
2296 | } | |
fe8aeef3 RS |
2297 | |
2298 | /* Set the value of poll_suppress_count to COUNT | |
2299 | and start or stop polling accordingly. */ | |
2300 | ||
2301 | void | |
2302 | set_poll_suppress_count (count) | |
2303 | int count; | |
2304 | { | |
2305 | #ifdef POLL_FOR_INPUT | |
2306 | if (count == 0 && poll_suppress_count != 0) | |
2307 | { | |
2308 | poll_suppress_count = 1; | |
2309 | start_polling (); | |
2310 | } | |
2311 | else if (count != 0 && poll_suppress_count == 0) | |
2312 | { | |
2313 | stop_polling (); | |
2314 | } | |
2315 | poll_suppress_count = count; | |
2316 | #endif | |
2317 | } | |
f4eef8b4 | 2318 | |
d0a57728 RS |
2319 | /* Bind polling_period to a value at least N. |
2320 | But don't decrease it. */ | |
2321 | ||
07a59269 | 2322 | void |
f4eef8b4 RS |
2323 | bind_polling_period (n) |
2324 | int n; | |
2325 | { | |
2326 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2327 | int new = polling_period; |
2328 | ||
2329 | if (n > new) | |
2330 | new = n; | |
2331 | ||
6fe007f7 | 2332 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2333 | stop_polling (); |
d0a57728 RS |
2334 | specbind (Qpolling_period, make_number (new)); |
2335 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2336 | start_polling (); |
2337 | #endif | |
2338 | } | |
284f4730 | 2339 | \f |
6da3dd3a RS |
2340 | /* Apply the control modifier to CHARACTER. */ |
2341 | ||
faf5e407 JB |
2342 | int |
2343 | make_ctrl_char (c) | |
2344 | int c; | |
2345 | { | |
d205953b JB |
2346 | /* Save the upper bits here. */ |
2347 | int upper = c & ~0177; | |
2348 | ||
a32aad64 KH |
2349 | if (! ASCII_BYTE_P (c)) |
2350 | return c |= ctrl_modifier; | |
2351 | ||
d205953b JB |
2352 | c &= 0177; |
2353 | ||
2354 | /* Everything in the columns containing the upper-case letters | |
2355 | denotes a control character. */ | |
2356 | if (c >= 0100 && c < 0140) | |
2357 | { | |
2358 | int oc = c; | |
2359 | c &= ~0140; | |
2360 | /* Set the shift modifier for a control char | |
2361 | made from a shifted letter. But only for letters! */ | |
2362 | if (oc >= 'A' && oc <= 'Z') | |
2363 | c |= shift_modifier; | |
2364 | } | |
2365 | ||
2366 | /* The lower-case letters denote control characters too. */ | |
2367 | else if (c >= 'a' && c <= 'z') | |
2368 | c &= ~0140; | |
2369 | ||
2370 | /* Include the bits for control and shift | |
2371 | only if the basic ASCII code can't indicate them. */ | |
2372 | else if (c >= ' ') | |
2373 | c |= ctrl_modifier; | |
2374 | ||
2375 | /* Replace the high bits. */ | |
2376 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2377 | |
2378 | return c; | |
2379 | } | |
2380 | ||
bb8c4865 RS |
2381 | /* Display the help-echo property of the character after the mouse pointer. |
2382 | Either show it in the echo area, or call show-help-function to display | |
2383 | it by other means (maybe in a tooltip). | |
d4e68eea | 2384 | |
bb8c4865 | 2385 | If HELP is nil, that means clear the previous help echo. |
d4e68eea | 2386 | |
bb8c4865 RS |
2387 | If HELP is a string, display that string. If HELP is a function, |
2388 | call it with OBJECT and POS as arguments; the function should | |
2389 | return a help string or nil for none. For all other types of HELP, | |
2390 | evaluate it to obtain a string. | |
8dfd92c9 | 2391 | |
2190735a GM |
2392 | WINDOW is the window in which the help was generated, if any. |
2393 | It is nil if not in a window. | |
2394 | ||
5b2ec2d0 GM |
2395 | If OBJECT is a buffer, POS is the position in the buffer where the |
2396 | `help-echo' text property was found. | |
2397 | ||
2398 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2399 | and POS is the position in the overlay's buffer under the mouse. | |
2400 | ||
2401 | If OBJECT is a string (an overlay string or a string displayed with | |
2402 | the `display' property). POS is the position in that string under | |
2403 | the mouse. | |
d4e68eea | 2404 | |
27fd22dc | 2405 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2406 | echo overwrites a keystroke echo currently displayed in the echo |
2407 | area. | |
2408 | ||
8dfd92c9 GM |
2409 | Note: this function may only be called with HELP nil or a string |
2410 | from X code running asynchronously. */ | |
d4e68eea | 2411 | |
31f84d03 | 2412 | void |
2190735a GM |
2413 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2414 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2415 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2416 | { |
8dfd92c9 | 2417 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2418 | { |
8dfd92c9 GM |
2419 | if (FUNCTIONP (help)) |
2420 | { | |
2190735a | 2421 | Lisp_Object args[4]; |
8dfd92c9 | 2422 | args[0] = help; |
2190735a GM |
2423 | args[1] = window; |
2424 | args[2] = object; | |
2425 | args[3] = pos; | |
1db0076e | 2426 | help = safe_call (4, args); |
8dfd92c9 GM |
2427 | } |
2428 | else | |
1db0076e | 2429 | help = safe_eval (help); |
c60ee5e7 | 2430 | |
8dfd92c9 | 2431 | if (!STRINGP (help)) |
d4e68eea | 2432 | return; |
31f84d03 SM |
2433 | } |
2434 | ||
ae372f41 | 2435 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 | 2436 | if (!noninteractive && STRINGP (help)) |
c5b76d6c CY |
2437 | { |
2438 | /* The mouse-fixup-help-message Lisp function can call | |
2439 | mouse_position_hook, which resets the mouse_moved flags. | |
2440 | This causes trouble if we are trying to read a mouse motion | |
2441 | event (i.e., if we are inside a `track-mouse' form), so we | |
2442 | restore the mouse_moved flag. */ | |
2443 | FRAME_PTR f = NILP (do_mouse_tracking) ? NULL : some_mouse_moved (); | |
2444 | help = call1 (Qmouse_fixup_help_message, help); | |
2445 | if (f) | |
2446 | f->mouse_moved = 1; | |
2447 | } | |
c22237f7 KS |
2448 | #endif |
2449 | ||
8dfd92c9 | 2450 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2451 | { |
2452 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2453 | call1 (Vshow_help_function, help); |
5295a500 | 2454 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2455 | } |
31f84d03 SM |
2456 | } |
2457 | ||
faf5e407 JB |
2458 | |
2459 | \f | |
284f4730 JB |
2460 | /* Input of single characters from keyboard */ |
2461 | ||
2462 | Lisp_Object print_help (); | |
2463 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2464 | static void record_char (); |
284f4730 | 2465 | |
638d3da0 CY |
2466 | static Lisp_Object help_form_saved_window_configs; |
2467 | static Lisp_Object | |
2468 | read_char_help_form_unwind (arg) | |
2469 | { | |
2470 | Lisp_Object window_config = XCAR (help_form_saved_window_configs); | |
2471 | help_form_saved_window_configs = XCDR (help_form_saved_window_configs); | |
2472 | if (!NILP (window_config)) | |
2473 | Fset_window_configuration (window_config); | |
2474 | return Qnil; | |
2475 | } | |
2476 | ||
184c3d81 RS |
2477 | #define STOP_POLLING \ |
2478 | do { if (! polling_stopped_here) stop_polling (); \ | |
2479 | polling_stopped_here = 1; } while (0) | |
2480 | ||
2481 | #define RESUME_POLLING \ | |
2482 | do { if (polling_stopped_here) start_polling (); \ | |
2483 | polling_stopped_here = 0; } while (0) | |
2484 | ||
284f4730 JB |
2485 | /* read a character from the keyboard; call the redisplay if needed */ |
2486 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2487 | -1 means do not do redisplay, but do do autosaving. | |
2488 | 1 means do both. */ | |
2489 | ||
7d6de002 RS |
2490 | /* The arguments MAPS and NMAPS are for menu prompting. |
2491 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2492 | ||
2493 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2494 | the first event of a key sequence (or not reading a key sequence). |
2495 | If PREV_EVENT is t, that is a "magic" value that says | |
2496 | not to run input methods, but in other respects to act as if | |
2497 | not reading a key sequence. | |
7d6de002 | 2498 | |
83d68044 | 2499 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2500 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2501 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 | 2502 | |
9688ff53 | 2503 | Value is -2 when we find input on another keyboard. A second call |
033b73e2 | 2504 | to read_char will read it. |
9688ff53 | 2505 | |
179f689c CY |
2506 | If END_TIME is non-null, it is a pointer to an EMACS_TIME |
2507 | specifying the maximum time to wait until. If no input arrives by | |
2508 | that time, stop waiting and return nil. | |
2509 | ||
dcc408a0 | 2510 | Value is t if we showed a menu and the user rejected it. */ |
7d6de002 | 2511 | |
284f4730 | 2512 | Lisp_Object |
179f689c | 2513 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu, end_time) |
284f4730 | 2514 | int commandflag; |
7d6de002 RS |
2515 | int nmaps; |
2516 | Lisp_Object *maps; | |
2517 | Lisp_Object prev_event; | |
2518 | int *used_mouse_menu; | |
179f689c | 2519 | EMACS_TIME *end_time; |
284f4730 | 2520 | { |
8c907a56 | 2521 | volatile Lisp_Object c; |
092869b9 | 2522 | int count, jmpcount; |
410d4de9 | 2523 | jmp_buf local_getcjmp; |
284f4730 | 2524 | jmp_buf save_jump; |
8c907a56 | 2525 | volatile int key_already_recorded = 0; |
017c7cb6 | 2526 | Lisp_Object tem, save; |
8c907a56 GM |
2527 | volatile Lisp_Object previous_echo_area_message; |
2528 | volatile Lisp_Object also_record; | |
2529 | volatile int reread; | |
d5eecefb | 2530 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2531 | int polling_stopped_here = 0; |
b3e6f69c | 2532 | struct kboard *orig_kboard = current_kboard; |
7c3bc944 | 2533 | |
e4fe371d | 2534 | also_record = Qnil; |
284f4730 | 2535 | |
22b94eeb | 2536 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2537 | before_command_key_count = this_command_key_count; |
2538 | before_command_echo_length = echo_length (); | |
22b94eeb | 2539 | #endif |
ef6661f7 | 2540 | c = Qnil; |
7ee32cda | 2541 | previous_echo_area_message = Qnil; |
71918b75 | 2542 | |
7ee32cda | 2543 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2544 | |
7f07d5ca RS |
2545 | retry: |
2546 | ||
7d18f9ae RS |
2547 | reread = 0; |
2548 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2549 | { |
7539e11f | 2550 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2551 | Vunread_post_input_method_events |
7539e11f | 2552 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2553 | |
2479e91e RS |
2554 | /* Undo what read_char_x_menu_prompt did when it unread |
2555 | additional keys returned by Fx_popup_menu. */ | |
2556 | if (CONSP (c) | |
7539e11f KR |
2557 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2558 | && NILP (XCDR (c))) | |
2559 | c = XCAR (c); | |
2479e91e | 2560 | |
7d18f9ae RS |
2561 | reread = 1; |
2562 | goto reread_first; | |
284f4730 JB |
2563 | } |
2564 | ||
86e5706b RS |
2565 | if (unread_command_char != -1) |
2566 | { | |
18cd2eeb | 2567 | XSETINT (c, unread_command_char); |
86e5706b RS |
2568 | unread_command_char = -1; |
2569 | ||
7d18f9ae RS |
2570 | reread = 1; |
2571 | goto reread_first; | |
2572 | } | |
2573 | ||
2574 | if (CONSP (Vunread_command_events)) | |
2575 | { | |
7539e11f KR |
2576 | c = XCAR (Vunread_command_events); |
2577 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae | 2578 | |
96f4f7ec KS |
2579 | reread = 1; |
2580 | ||
2581 | /* Undo what sit-for did when it unread additional keys | |
2582 | inside universal-argument. */ | |
2583 | ||
2584 | if (CONSP (c) | |
2585 | && EQ (XCAR (c), Qt)) | |
2586 | { | |
2587 | reread = 0; | |
2588 | c = XCDR (c); | |
2589 | } | |
2590 | ||
7d18f9ae RS |
2591 | /* Undo what read_char_x_menu_prompt did when it unread |
2592 | additional keys returned by Fx_popup_menu. */ | |
2593 | if (CONSP (c) | |
f4e05d97 GM |
2594 | && EQ (XCDR (c), Qdisabled) |
2595 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2596 | c = XCAR (c); |
c60ee5e7 | 2597 | |
d17e49a8 GM |
2598 | /* If the queued event is something that used the mouse, |
2599 | set used_mouse_menu accordingly. */ | |
2600 | if (used_mouse_menu | |
2601 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2602 | *used_mouse_menu = 1; | |
c60ee5e7 | 2603 | |
7d18f9ae RS |
2604 | goto reread_for_input_method; |
2605 | } | |
2606 | ||
2607 | if (CONSP (Vunread_input_method_events)) | |
2608 | { | |
7539e11f KR |
2609 | c = XCAR (Vunread_input_method_events); |
2610 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2611 | |
2612 | /* Undo what read_char_x_menu_prompt did when it unread | |
2613 | additional keys returned by Fx_popup_menu. */ | |
2614 | if (CONSP (c) | |
7539e11f KR |
2615 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2616 | && NILP (XCDR (c))) | |
2617 | c = XCAR (c); | |
7d18f9ae RS |
2618 | reread = 1; |
2619 | goto reread_for_input_method; | |
86e5706b RS |
2620 | } |
2621 | ||
63020c46 RS |
2622 | this_command_key_count_reset = 0; |
2623 | ||
ce0d2858 | 2624 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2625 | { |
fce33686 JB |
2626 | /* We set this to Qmacro; since that's not a frame, nobody will |
2627 | try to switch frames on us, and the selected window will | |
2628 | remain unchanged. | |
2629 | ||
2630 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2631 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2632 | real event came from. Normally, a switch-frame event selects |
2633 | internal_last_event_frame after each command is read, but | |
2634 | events read from a macro should never cause a new frame to be | |
2635 | selected. */ | |
4c52b668 | 2636 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2637 | |
663258f2 JB |
2638 | /* Exit the macro if we are at the end. |
2639 | Also, some things replace the macro with t | |
2640 | to force an early exit. */ | |
ce0d2858 | 2641 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2642 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2643 | { |
18cd2eeb | 2644 | XSETINT (c, -1); |
184c3d81 | 2645 | goto exit; |
284f4730 | 2646 | } |
df0f2ba1 | 2647 | |
649d952d | 2648 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2649 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2650 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2651 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2652 | |
649d952d | 2653 | executing_kbd_macro_index++; |
284f4730 JB |
2654 | |
2655 | goto from_macro; | |
2656 | } | |
2657 | ||
cd21b839 JB |
2658 | if (!NILP (unread_switch_frame)) |
2659 | { | |
2660 | c = unread_switch_frame; | |
2661 | unread_switch_frame = Qnil; | |
2662 | ||
2663 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2664 | again, so we do not set `reread'. */ |
f4255cd1 | 2665 | goto reread_first; |
cd21b839 JB |
2666 | } |
2667 | ||
adc1d5c8 | 2668 | /* if redisplay was requested */ |
6e4e64a8 RS |
2669 | if (commandflag >= 0) |
2670 | { | |
0975aa24 | 2671 | int echo_current = EQ (echo_message_buffer, echo_area_buffer[0]); |
94f9b406 | 2672 | |
adc1d5c8 RS |
2673 | /* If there is pending input, process any events which are not |
2674 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2675 | if (input_pending |
2676 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2677 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2678 | |
adc1d5c8 RS |
2679 | /* Redisplay if no pending input. */ |
2680 | while (!input_pending) | |
2681 | { | |
5295a500 | 2682 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2683 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2684 | else |
2685 | redisplay (); | |
adc1d5c8 RS |
2686 | |
2687 | if (!input_pending) | |
2688 | /* Normal case: no input arrived during redisplay. */ | |
2689 | break; | |
2690 | ||
2691 | /* Input arrived and pre-empted redisplay. | |
2692 | Process any events which are not user-visible. */ | |
2693 | swallow_events (0); | |
2694 | /* If that cleared input_pending, try again to redisplay. */ | |
2695 | } | |
94f9b406 RS |
2696 | |
2697 | /* Prevent the redisplay we just did | |
2698 | from messing up echoing of the input after the prompt. */ | |
2699 | if (commandflag == 0 && echo_current) | |
2700 | echo_message_buffer = echo_area_buffer[0]; | |
2701 | ||
6e4e64a8 | 2702 | } |
e9bf89a0 | 2703 | |
59a84f8e | 2704 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2705 | |
59a84f8e GM |
2706 | The code in 20.x for the condition was |
2707 | ||
2708 | 1. echo_area_glyphs && *echo_area_glyphs | |
2709 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2710 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2711 | ||
2712 | (1) means there's a current message displayed | |
c60ee5e7 | 2713 | |
59a84f8e GM |
2714 | (2) means it's not the message from echoing from the current |
2715 | kboard. | |
c60ee5e7 | 2716 | |
59a84f8e GM |
2717 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2718 | is set to a non-null value. This is done in read_char and it is | |
2719 | set to echo_area_glyphs after a call to echo_char. That means | |
2720 | ok_to_echo_at_next_pause is either null or | |
2721 | current_kboard->echobuf with the appropriate current_kboard at | |
2722 | that time. | |
2723 | ||
2724 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2725 | must be either null, or the current message isn't from echoing at | |
2726 | all, or it's from echoing from a different kboard than the | |
2727 | current one. */ | |
c60ee5e7 | 2728 | |
27fd22dc | 2729 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2730 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2731 | && (/* And it's either not from echoing. */ |
2732 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2733 | /* Or it's an echo from a different kboard. */ | |
2734 | || echo_kboard != current_kboard | |
2735 | /* Or we explicitly allow overwriting whatever there is. */ | |
2736 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2737 | cancel_echoing (); |
410d4de9 | 2738 | else |
410d4de9 | 2739 | echo_dash (); |
c60ee5e7 | 2740 | |
410d4de9 RS |
2741 | /* Try reading a character via menu prompting in the minibuf. |
2742 | Try this before the sit-for, because the sit-for | |
2743 | would do the wrong thing if we are supposed to do | |
2744 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2745 | after a mouse event so don't try a minibuf menu. */ | |
2746 | c = Qnil; | |
2747 | if (nmaps > 0 && INTERACTIVE | |
2748 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2749 | /* Don't bring up a menu if we already have another event. */ | |
2750 | && NILP (Vunread_command_events) | |
2751 | && unread_command_char < 0 | |
4ec4ed6a | 2752 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2753 | { |
2754 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
9688ff53 KL |
2755 | |
2756 | if (INTEGERP (c) && XINT (c) == -2) | |
2757 | return c; /* wrong_kboard_jmpbuf */ | |
2758 | ||
410d4de9 RS |
2759 | if (! NILP (c)) |
2760 | { | |
2761 | key_already_recorded = 1; | |
2762 | goto non_reread_1; | |
2763 | } | |
2764 | } | |
284f4730 | 2765 | |
410d4de9 RS |
2766 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2767 | We will do that below, temporarily for short sections of code, | |
2768 | when appropriate. local_getcjmp must be in effect | |
2769 | around any call to sit_for or kbd_buffer_get_event; | |
2770 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2771 | |
092869b9 | 2772 | jmpcount = SPECPDL_INDEX (); |
410d4de9 | 2773 | if (_setjmp (local_getcjmp)) |
284f4730 | 2774 | { |
d6805803 | 2775 | /* Handle quits while reading the keyboard. */ |
dfbfad25 RS |
2776 | /* We must have saved the outer value of getcjmp here, |
2777 | so restore it now. */ | |
2778 | restore_getcjmp (save_jump); | |
092869b9 | 2779 | unbind_to (jmpcount, Qnil); |
18cd2eeb | 2780 | XSETINT (c, quit_char); |
788f89eb | 2781 | internal_last_event_frame = selected_frame; |
4c52b668 | 2782 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2783 | /* If we report the quit char as an event, |
2784 | don't do so more than once. */ | |
2785 | if (!NILP (Vinhibit_quit)) | |
2786 | Vquit_flag = Qnil; | |
284f4730 | 2787 | |
c5fdd383 | 2788 | #ifdef MULTI_KBOARD |
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 | } | |
2816 | #endif | |
284f4730 JB |
2817 | goto non_reread; |
2818 | } | |
2819 | ||
3236e6b8 CY |
2820 | /* Start idle timers if no time limit is supplied. We don't do it |
2821 | if a time limit is supplied to avoid an infinite recursion in the | |
2822 | situation where an idle timer calls `sit-for'. */ | |
70282fce | 2823 | |
3236e6b8 | 2824 | if (!end_time) |
70282fce | 2825 | timer_start_idle (); |
d9d4c147 | 2826 | |
284f4730 JB |
2827 | /* If in middle of key sequence and minibuffer not active, |
2828 | start echoing if enough time elapses. */ | |
410d4de9 | 2829 | |
c60ee5e7 | 2830 | if (minibuf_level == 0 |
179f689c | 2831 | && !end_time |
7ee32cda | 2832 | && !current_kboard->immediate_echo |
6c6083a9 | 2833 | && this_command_key_count > 0 |
27203ead | 2834 | && ! noninteractive |
f2647d04 DL |
2835 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2836 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2837 | && (/* No message. */ |
2838 | NILP (echo_area_buffer[0]) | |
2839 | /* Or empty message. */ | |
2840 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2841 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2842 | /* Or already echoing from same kboard. */ | |
2843 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2844 | /* Or not echoing before and echoing allowed. */ | |
2845 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 | 2846 | { |
7d6de002 RS |
2847 | /* After a mouse event, start echoing right away. |
2848 | This is because we are probably about to display a menu, | |
2849 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2850 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2851 | echo_now (); |
7d6de002 RS |
2852 | else |
2853 | { | |
666dc232 KS |
2854 | Lisp_Object tem0; |
2855 | ||
410d4de9 RS |
2856 | save_getcjmp (save_jump); |
2857 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2858 | tem0 = sit_for (Vecho_keystrokes, 1, 1); |
410d4de9 | 2859 | restore_getcjmp (save_jump); |
303b5b3f RS |
2860 | if (EQ (tem0, Qt) |
2861 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2862 | echo_now (); |
7d6de002 | 2863 | } |
284f4730 JB |
2864 | } |
2865 | ||
410d4de9 | 2866 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2867 | |
2868 | if (commandflag != 0 | |
2869 | && auto_save_interval > 0 | |
c43b1734 | 2870 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2871 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2872 | { |
284f4730 | 2873 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2874 | /* Hooks can actually change some buffers in auto save. */ |
2875 | redisplay (); | |
284f4730 JB |
2876 | } |
2877 | ||
8150596a | 2878 | /* Try reading using an X menu. |
24597608 RS |
2879 | This is never confused with reading using the minibuf |
2880 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2881 | does not pass on any keymaps. */ | |
410d4de9 | 2882 | |
24597608 | 2883 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2884 | && !NILP (prev_event) |
2885 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2886 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2887 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2888 | /* Don't bring up a menu if we already have another event. */ |
2889 | && NILP (Vunread_command_events) | |
b8556aee | 2890 | && unread_command_char < 0) |
8eb4d8ef RS |
2891 | { |
2892 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2893 | ||
2894 | /* Now that we have read an event, Emacs is not idle. */ | |
3236e6b8 CY |
2895 | if (!end_time) |
2896 | timer_stop_idle (); | |
8eb4d8ef | 2897 | |
184c3d81 | 2898 | goto exit; |
8eb4d8ef | 2899 | } |
7d6de002 | 2900 | |
410d4de9 RS |
2901 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2902 | ||
26c1639e | 2903 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2904 | { |
2905 | int delay_level, buffer_size; | |
2906 | ||
410d4de9 RS |
2907 | /* Slow down auto saves logarithmically in size of current buffer, |
2908 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2909 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2910 | last_non_minibuf_size = Z - BEG; | |
2911 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2912 | delay_level = 0; | |
2913 | while (buffer_size > 64) | |
2914 | delay_level++, buffer_size -= buffer_size >> 2; | |
2915 | if (delay_level < 4) delay_level = 4; | |
2916 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2917 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2918 | ||
2919 | /* Auto save if enough time goes by without input. */ | |
2920 | if (commandflag != 0 | |
c43b1734 | 2921 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2922 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2923 | && XINT (Vauto_save_timeout) > 0) |
2924 | { | |
2925 | Lisp_Object tem0; | |
666dc232 | 2926 | int timeout = delay_level * XFASTINT (Vauto_save_timeout) / 4; |
410d4de9 RS |
2927 | |
2928 | save_getcjmp (save_jump); | |
2929 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2930 | tem0 = sit_for (make_number (timeout), 1, 1); |
410d4de9 RS |
2931 | restore_getcjmp (save_jump); |
2932 | ||
303b5b3f RS |
2933 | if (EQ (tem0, Qt) |
2934 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2935 | { |
7d6de002 | 2936 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2937 | |
2938 | /* If we have auto-saved and there is still no input | |
2939 | available, garbage collect if there has been enough | |
2940 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2941 | if (!detect_input_pending_run_timers (0) |
c8e16a02 | 2942 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2943 | Fgarbage_collect (); |
410d4de9 | 2944 | |
ef8fd672 | 2945 | redisplay (); |
7d6de002 RS |
2946 | } |
2947 | } | |
2948 | } | |
284f4730 | 2949 | |
67ddbec3 KL |
2950 | /* Notify the caller if an autosave hook, or a timer, sentinel or |
2951 | filter in the sit_for calls above have changed the current | |
2952 | kboard. This could happen if they use the minibuffer or start a | |
2953 | recursive edit, like the fancy splash screen in server.el's | |
2954 | filter. If this longjmp wasn't here, read_key_sequence would | |
2955 | interpret the next key sequence using the wrong translation | |
2956 | tables and function keymaps. */ | |
b3e6f69c KL |
2957 | if (NILP (c) && current_kboard != orig_kboard) |
2958 | { | |
2959 | UNGCPRO; | |
9688ff53 | 2960 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
b3e6f69c KL |
2961 | } |
2962 | ||
303b5b3f RS |
2963 | /* If this has become non-nil here, it has been set by a timer |
2964 | or sentinel or filter. */ | |
2965 | if (CONSP (Vunread_command_events)) | |
2966 | { | |
7539e11f KR |
2967 | c = XCAR (Vunread_command_events); |
2968 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2969 | } |
2970 | ||
410d4de9 RS |
2971 | /* Read something from current KBOARD's side queue, if possible. */ |
2972 | ||
beecf6a1 | 2973 | if (NILP (c)) |
1e12dd87 | 2974 | { |
c5fdd383 | 2975 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2976 | { |
c5fdd383 | 2977 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2978 | abort (); |
7539e11f | 2979 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2980 | current_kboard->kbd_queue |
7539e11f | 2981 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2982 | if (NILP (current_kboard->kbd_queue)) |
2983 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2984 | input_pending = readable_events (0); |
4c52b668 KH |
2985 | if (EVENT_HAS_PARAMETERS (c) |
2986 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2987 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2988 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2989 | } |
1e8bd3da RS |
2990 | } |
2991 | ||
c5fdd383 | 2992 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2993 | /* If current_kboard's side queue is empty check the other kboards. |
2994 | If one of them has data that we have not yet seen here, | |
2995 | switch to it and process the data waiting for it. | |
2996 | ||
2997 | Note: if the events queued up for another kboard | |
2998 | have already been seen here, and therefore are not a complete command, | |
2999 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
3000 | That's to avoid an infinite loop switching between kboards here. */ | |
3001 | if (NILP (c) && !single_kboard) | |
3002 | { | |
3003 | KBOARD *kb; | |
3004 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3005 | if (kb->kbd_queue_has_data) | |
3006 | { | |
3007 | current_kboard = kb; | |
ef6661f7 RS |
3008 | /* This is going to exit from read_char |
3009 | so we had better get rid of this frame's stuff. */ | |
3010 | UNGCPRO; | |
9688ff53 | 3011 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
1e8bd3da RS |
3012 | } |
3013 | } | |
df0f2ba1 KH |
3014 | #endif |
3015 | ||
410d4de9 RS |
3016 | wrong_kboard: |
3017 | ||
184c3d81 | 3018 | STOP_POLLING; |
410d4de9 | 3019 | |
1e8bd3da RS |
3020 | /* Finally, we read from the main queue, |
3021 | and if that gives us something we can't use yet, we put it on the | |
3022 | appropriate side queue and try again. */ | |
410d4de9 | 3023 | |
1e8bd3da RS |
3024 | if (NILP (c)) |
3025 | { | |
3026 | KBOARD *kb; | |
3027 | ||
179f689c CY |
3028 | if (end_time) |
3029 | { | |
3030 | EMACS_TIME now; | |
3031 | EMACS_GET_TIME (now); | |
3032 | if (EMACS_TIME_GE (now, *end_time)) | |
3033 | goto exit; | |
3034 | } | |
3035 | ||
1e8bd3da | 3036 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
3037 | save_getcjmp (save_jump); |
3038 | restore_getcjmp (local_getcjmp); | |
3236e6b8 | 3039 | if (!end_time) |
70282fce | 3040 | timer_start_idle (); |
179f689c | 3041 | c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time); |
410d4de9 RS |
3042 | restore_getcjmp (save_jump); |
3043 | ||
c5fdd383 | 3044 | #ifdef MULTI_KBOARD |
410d4de9 | 3045 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 3046 | { |
f3fbd155 KR |
3047 | Lisp_Object link = kb->kbd_queue; |
3048 | if (CONSP (link)) | |
3049 | { | |
3050 | while (CONSP (XCDR (link))) | |
3051 | link = XCDR (link); | |
3052 | if (!NILP (XCDR (link))) | |
3053 | abort (); | |
3054 | } | |
3055 | if (!CONSP (link)) | |
3056 | kb->kbd_queue = Fcons (c, Qnil); | |
3057 | else | |
3058 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 3059 | kb->kbd_queue_has_data = 1; |
46b84797 | 3060 | c = Qnil; |
1e8bd3da RS |
3061 | if (single_kboard) |
3062 | goto wrong_kboard; | |
3063 | current_kboard = kb; | |
ef6661f7 RS |
3064 | /* This is going to exit from read_char |
3065 | so we had better get rid of this frame's stuff. */ | |
3066 | UNGCPRO; | |
9688ff53 | 3067 | return make_number (-2); |
df0f2ba1 | 3068 | } |
1e8bd3da | 3069 | #endif |
beecf6a1 | 3070 | } |
1e8bd3da | 3071 | |
284f4730 | 3072 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 3073 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
3074 | Fkill_emacs (make_number (1)); |
3075 | ||
8c18cbfb | 3076 | if (INTEGERP (c)) |
80645119 JB |
3077 | { |
3078 | /* Add in any extra modifiers, where appropriate. */ | |
3079 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
3080 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
3081 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 3082 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
3083 | |
3084 | /* Transfer any other modifier bits directly from | |
3085 | extra_keyboard_modifiers to c. Ignore the actual character code | |
3086 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 3087 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 3088 | } |
9fa4395d | 3089 | |
284f4730 JB |
3090 | non_reread: |
3091 | ||
3236e6b8 CY |
3092 | if (!end_time) |
3093 | timer_stop_idle (); | |
184c3d81 | 3094 | RESUME_POLLING; |
284f4730 | 3095 | |
410d4de9 RS |
3096 | if (NILP (c)) |
3097 | { | |
3098 | if (commandflag >= 0 | |
4ec4ed6a | 3099 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
3100 | redisplay (); |
3101 | ||
3102 | goto wrong_kboard; | |
3103 | } | |
3104 | ||
3105 | non_reread_1: | |
3106 | ||
dfd11da7 | 3107 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
3108 | so don't show them to the user. |
3109 | Also, don't record a key if we already did. */ | |
3110 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 3111 | goto exit; |
a1341f75 | 3112 | |
7f07d5ca RS |
3113 | /* Process special events within read_char |
3114 | and loop around to read another event. */ | |
017c7cb6 RS |
3115 | save = Vquit_flag; |
3116 | Vquit_flag = Qnil; | |
02067692 | 3117 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 3118 | Vquit_flag = save; |
7f07d5ca RS |
3119 | |
3120 | if (!NILP (tem)) | |
3121 | { | |
b3e6f69c | 3122 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 | 3123 | int was_locked = single_kboard; |
b3e6f69c KL |
3124 | int count = SPECPDL_INDEX (); |
3125 | record_single_kboard_state (); | |
3126 | #endif | |
033b73e2 | 3127 | |
7f07d5ca | 3128 | last_input_char = c; |
158f7532 | 3129 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 3130 | |
3236e6b8 | 3131 | if (CONSP (c) && EQ (XCAR (c), Qselect_window) && !end_time) |
5d12f14d EZ |
3132 | /* We stopped being idle for this event; undo that. This |
3133 | prevents automatic window selection (under | |
0b9a1d3d | 3134 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 3135 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 3136 | timer_resume_idle (); |
5d12f14d | 3137 | |
b3e6f69c | 3138 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 RS |
3139 | /* Resume allowing input from any kboard, if that was true before. */ |
3140 | if (!was_locked) | |
3141 | any_kboard_state (); | |
b3e6f69c KL |
3142 | unbind_to (count, Qnil); |
3143 | #endif | |
ba8dfba8 | 3144 | |
7f07d5ca RS |
3145 | goto retry; |
3146 | } | |
3147 | ||
284f4730 | 3148 | /* Handle things that only apply to characters. */ |
8c18cbfb | 3149 | if (INTEGERP (c)) |
284f4730 JB |
3150 | { |
3151 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 3152 | if (XINT (c) == -1) |
184c3d81 | 3153 | goto exit; |
284f4730 | 3154 | |
2e478293 KL |
3155 | if ((STRINGP (current_kboard->Vkeyboard_translate_table) |
3156 | && SCHARS (current_kboard->Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) | |
3157 | || (VECTORP (current_kboard->Vkeyboard_translate_table) | |
3158 | && XVECTOR (current_kboard->Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
3159 | || (CHAR_TABLE_P (current_kboard->Vkeyboard_translate_table) | |
dbcf4347 | 3160 | && CHARACTERP (c))) |
f9414d62 RS |
3161 | { |
3162 | Lisp_Object d; | |
2e478293 | 3163 | d = Faref (current_kboard->Vkeyboard_translate_table, c); |
f9414d62 RS |
3164 | /* nil in keyboard-translate-table means no translation. */ |
3165 | if (!NILP (d)) | |
3166 | c = d; | |
3167 | } | |
284f4730 JB |
3168 | } |
3169 | ||
e4fe371d RS |
3170 | /* If this event is a mouse click in the menu bar, |
3171 | return just menu-bar for now. Modify the mouse click event | |
3172 | so we won't do this twice, then queue it up. */ | |
3173 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 3174 | && CONSP (XCDR (c)) |
e4fe371d | 3175 | && CONSP (EVENT_START (c)) |
7539e11f | 3176 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 3177 | { |
e4fe371d | 3178 | Lisp_Object posn; |
284f4730 | 3179 | |
6b61353c | 3180 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
3181 | /* Handle menu-bar events: |
3182 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 3183 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
3184 | { |
3185 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
6b61353c | 3186 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 3187 | |
e4fe371d RS |
3188 | also_record = c; |
3189 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
3190 | c = posn; | |
284f4730 | 3191 | } |
284f4730 JB |
3192 | } |
3193 | ||
7d18f9ae RS |
3194 | /* Store these characters into recent_keys, the dribble file if any, |
3195 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
3196 | record_char (c); |
3197 | if (! NILP (also_record)) | |
3198 | record_char (also_record); | |
51172b6d | 3199 | |
d5eecefb RS |
3200 | /* Wipe the echo area. |
3201 | But first, if we are about to use an input method, | |
3202 | save the echo area contents for it to refer to. */ | |
3203 | if (INTEGERP (c) | |
3204 | && ! NILP (Vinput_method_function) | |
3205 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
3206 | && (unsigned) XINT (c) != 127 |
3207 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
3208 | { |
3209 | previous_echo_area_message = Fcurrent_message (); | |
3210 | Vinput_method_previous_message = previous_echo_area_message; | |
3211 | } | |
d5eecefb | 3212 | |
1172eb8d GM |
3213 | /* Now wipe the echo area, except for help events which do their |
3214 | own stuff with the echo area. */ | |
4d2e9f95 GM |
3215 | if (!CONSP (c) |
3216 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
3217 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
3218 | { |
3219 | if (!NILP (echo_area_buffer[0])) | |
3220 | safe_run_hooks (Qecho_area_clear_hook); | |
3221 | clear_message (1, 0); | |
3222 | } | |
d5eecefb | 3223 | |
7d18f9ae | 3224 | reread_for_input_method: |
284f4730 | 3225 | from_macro: |
7d18f9ae | 3226 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
3227 | if (INTEGERP (c) |
3228 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
3229 | /* Don't run the input method within a key sequence, |
3230 | after the first event of the key sequence. */ | |
3231 | && NILP (prev_event) | |
d5eecefb | 3232 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
3233 | && (unsigned) XINT (c) != 127 |
3234 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3235 | { |
c60ee5e7 | 3236 | Lisp_Object keys; |
63020c46 | 3237 | int key_count, key_count_reset; |
d5eecefb | 3238 | struct gcpro gcpro1; |
aed13378 | 3239 | int count = SPECPDL_INDEX (); |
d5eecefb | 3240 | |
6e5742a0 RS |
3241 | /* Save the echo status. */ |
3242 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3243 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 3244 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
3245 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3246 | ||
22b94eeb | 3247 | #if 0 |
6e5742a0 RS |
3248 | if (before_command_restore_flag) |
3249 | { | |
3250 | this_command_key_count = before_command_key_count_1; | |
3251 | if (this_command_key_count < this_single_command_key_start) | |
3252 | this_single_command_key_start = this_command_key_count; | |
3253 | echo_truncate (before_command_echo_length_1); | |
3254 | before_command_restore_flag = 0; | |
3255 | } | |
22b94eeb | 3256 | #endif |
6e5742a0 RS |
3257 | |
3258 | /* Save the this_command_keys status. */ | |
3259 | key_count = this_command_key_count; | |
63020c46 | 3260 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3261 | |
3262 | if (key_count > 0) | |
3263 | keys = Fcopy_sequence (this_command_keys); | |
3264 | else | |
3265 | keys = Qnil; | |
d5eecefb | 3266 | GCPRO1 (keys); |
6e5742a0 RS |
3267 | |
3268 | /* Clear out this_command_keys. */ | |
3269 | this_command_key_count = 0; | |
63020c46 | 3270 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3271 | |
3272 | /* Now wipe the echo area. */ | |
985f9f66 | 3273 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3274 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3275 | clear_message (1, 0); |
6e5742a0 RS |
3276 | echo_truncate (0); |
3277 | ||
b638f328 RS |
3278 | /* If we are not reading a key sequence, |
3279 | never use the echo area. */ | |
3280 | if (maps == 0) | |
3281 | { | |
b638f328 RS |
3282 | specbind (Qinput_method_use_echo_area, Qt); |
3283 | } | |
3284 | ||
6e5742a0 | 3285 | /* Call the input method. */ |
d5eecefb | 3286 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3287 | |
3288 | tem = unbind_to (count, tem); | |
3289 | ||
6e5742a0 RS |
3290 | /* Restore the saved echoing state |
3291 | and this_command_keys state. */ | |
3292 | this_command_key_count = key_count; | |
63020c46 | 3293 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3294 | if (key_count > 0) |
3295 | this_command_keys = keys; | |
3296 | ||
3297 | cancel_echoing (); | |
3298 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 3299 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
3300 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
3301 | if (saved_immediate_echo) | |
3302 | echo_now (); | |
3303 | ||
d5eecefb | 3304 | UNGCPRO; |
6e5742a0 | 3305 | |
d5eecefb RS |
3306 | /* The input method can return no events. */ |
3307 | if (! CONSP (tem)) | |
7d18f9ae | 3308 | { |
d5eecefb | 3309 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3310 | if (! NILP (previous_echo_area_message)) |
3311 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3312 | goto retry; |
7d18f9ae | 3313 | } |
d5eecefb | 3314 | /* It returned one event or more. */ |
7539e11f | 3315 | c = XCAR (tem); |
d5eecefb | 3316 | Vunread_post_input_method_events |
7539e11f | 3317 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3318 | } |
7c3bc944 | 3319 | |
7d18f9ae | 3320 | reread_first: |
284f4730 | 3321 | |
7ee32cda | 3322 | /* Display help if not echoing. */ |
1172eb8d | 3323 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3324 | { |
2190735a | 3325 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3326 | Lisp_Object help, object, position, window, tem; |
3327 | ||
3328 | tem = Fcdr (XCDR (c)); | |
3329 | help = Fcar (tem); | |
3330 | tem = Fcdr (tem); | |
3331 | window = Fcar (tem); | |
3332 | tem = Fcdr (tem); | |
3333 | object = Fcar (tem); | |
3334 | tem = Fcdr (tem); | |
3335 | position = Fcar (tem); | |
3336 | ||
2190735a | 3337 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3338 | |
3339 | /* We stopped being idle for this event; undo that. */ | |
3236e6b8 CY |
3340 | if (!end_time) |
3341 | timer_resume_idle (); | |
7ee32cda GM |
3342 | goto retry; |
3343 | } | |
c60ee5e7 | 3344 | |
4c0240d2 RS |
3345 | if ((! reread || this_command_key_count == 0 |
3346 | || this_command_key_count_reset) | |
3347 | && !end_time) | |
e4fe371d | 3348 | { |
7d18f9ae RS |
3349 | |
3350 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3351 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3352 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3353 | && ! (EVENT_HAS_PARAMETERS (c) |
3354 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3355 | { | |
3356 | echo_char (c); | |
3357 | if (! NILP (also_record)) | |
3358 | echo_char (also_record); | |
3359 | /* Once we reread a character, echoing can happen | |
3360 | the next time we pause to read a new one. */ | |
985f9f66 | 3361 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3362 | } |
3363 | ||
3364 | /* Record this character as part of the current key. */ | |
3365 | add_command_key (c); | |
e4fe371d | 3366 | if (! NILP (also_record)) |
7d18f9ae | 3367 | add_command_key (also_record); |
e4fe371d | 3368 | } |
b8556aee | 3369 | |
284f4730 | 3370 | last_input_char = c; |
c43b1734 | 3371 | num_input_events++; |
284f4730 JB |
3372 | |
3373 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3374 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3375 | { |
3376 | Lisp_Object tem0; | |
aed13378 | 3377 | count = SPECPDL_INDEX (); |
284f4730 | 3378 | |
638d3da0 CY |
3379 | help_form_saved_window_configs |
3380 | = Fcons (Fcurrent_window_configuration (Qnil), | |
3381 | help_form_saved_window_configs); | |
3382 | record_unwind_protect (read_char_help_form_unwind, Qnil); | |
284f4730 JB |
3383 | |
3384 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3385 | if (STRINGP (tem0)) |
284f4730 JB |
3386 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3387 | ||
3388 | cancel_echoing (); | |
3cb81011 | 3389 | do |
638d3da0 CY |
3390 | { |
3391 | c = read_char (0, 0, 0, Qnil, 0, NULL); | |
3392 | if (EVENT_HAS_PARAMETERS (c) | |
3393 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_click)) | |
3394 | XSETCAR (help_form_saved_window_configs, Qnil); | |
3395 | } | |
8c18cbfb | 3396 | while (BUFFERP (c)); |
ff11dfa1 | 3397 | /* Remove the help from the frame */ |
284f4730 | 3398 | unbind_to (count, Qnil); |
410d4de9 | 3399 | |
284f4730 JB |
3400 | redisplay (); |
3401 | if (EQ (c, make_number (040))) | |
3402 | { | |
3403 | cancel_echoing (); | |
3cb81011 | 3404 | do |
179f689c | 3405 | c = read_char (0, 0, 0, Qnil, 0, NULL); |
8c18cbfb | 3406 | while (BUFFERP (c)); |
284f4730 JB |
3407 | } |
3408 | } | |
3409 | ||
184c3d81 RS |
3410 | exit: |
3411 | RESUME_POLLING; | |
7c3bc944 | 3412 | RETURN_UNGCPRO (c); |
284f4730 JB |
3413 | } |
3414 | ||
8eb4d8ef RS |
3415 | /* Record a key that came from a mouse menu. |
3416 | Record it for echoing, for this-command-keys, and so on. */ | |
3417 | ||
3418 | static void | |
3419 | record_menu_key (c) | |
3420 | Lisp_Object c; | |
3421 | { | |
3422 | /* Wipe the echo area. */ | |
985f9f66 | 3423 | clear_message (1, 0); |
8eb4d8ef RS |
3424 | |
3425 | record_char (c); | |
3426 | ||
22b94eeb | 3427 | #if 0 |
8eb4d8ef RS |
3428 | before_command_key_count = this_command_key_count; |
3429 | before_command_echo_length = echo_length (); | |
22b94eeb | 3430 | #endif |
8eb4d8ef RS |
3431 | |
3432 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3433 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3434 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3435 | { |
3436 | echo_char (c); | |
3437 | ||
3438 | /* Once we reread a character, echoing can happen | |
3439 | the next time we pause to read a new one. */ | |
3440 | ok_to_echo_at_next_pause = 0; | |
3441 | } | |
3442 | ||
3443 | /* Record this character as part of the current key. */ | |
3444 | add_command_key (c); | |
3445 | ||
3446 | /* Re-reading in the middle of a command */ | |
3447 | last_input_char = c; | |
c43b1734 | 3448 | num_input_events++; |
8eb4d8ef RS |
3449 | } |
3450 | ||
ecb7cb34 KH |
3451 | /* Return 1 if should recognize C as "the help character". */ |
3452 | ||
3453 | int | |
3454 | help_char_p (c) | |
3455 | Lisp_Object c; | |
3456 | { | |
3457 | Lisp_Object tail; | |
3458 | ||
3459 | if (EQ (c, Vhelp_char)) | |
3460 | return 1; | |
7539e11f KR |
3461 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3462 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3463 | return 1; |
3464 | return 0; | |
3465 | } | |
3466 | ||
e4fe371d RS |
3467 | /* Record the input event C in various ways. */ |
3468 | ||
3469 | static void | |
3470 | record_char (c) | |
3471 | Lisp_Object c; | |
3472 | { | |
090c68b9 | 3473 | int recorded = 0; |
52be17cc | 3474 | |
090c68b9 KS |
3475 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3476 | { | |
3477 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3478 | events, we filter out repeated help-echo events, only store the | |
3479 | first and last in a series of mouse-movement events, and don't | |
3480 | store repeated help-echo events which are only separated by | |
3481 | mouse-movement events. */ | |
3482 | ||
3483 | Lisp_Object ev1, ev2, ev3; | |
3484 | int ix1, ix2, ix3; | |
c60ee5e7 | 3485 | |
090c68b9 KS |
3486 | if ((ix1 = recent_keys_index - 1) < 0) |
3487 | ix1 = NUM_RECENT_KEYS - 1; | |
3488 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3489 | |
090c68b9 KS |
3490 | if ((ix2 = ix1 - 1) < 0) |
3491 | ix2 = NUM_RECENT_KEYS - 1; | |
3492 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3493 | |
090c68b9 KS |
3494 | if ((ix3 = ix2 - 1) < 0) |
3495 | ix3 = NUM_RECENT_KEYS - 1; | |
3496 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3497 | |
090c68b9 KS |
3498 | if (EQ (XCAR (c), Qhelp_echo)) |
3499 | { | |
3500 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3501 | message, and a different help than the previously recorded |
090c68b9 KS |
3502 | event. */ |
3503 | Lisp_Object help, last_help; | |
3504 | ||
3505 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3506 | if (!STRINGP (help)) | |
3507 | recorded = 1; | |
3508 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3509 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3510 | recorded = 1; | |
3511 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3512 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3513 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3514 | recorded = -1; | |
3515 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3516 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3517 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3518 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3519 | recorded = -2; | |
3520 | } | |
3521 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3522 | { |
090c68b9 KS |
3523 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3524 | So additional mouse movement events replace the last element. */ | |
3525 | Lisp_Object last_window, window; | |
3526 | ||
3527 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3528 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3529 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3530 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3531 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3532 | { |
090c68b9 KS |
3533 | ASET (recent_keys, ix1, c); |
3534 | recorded = 1; | |
52be17cc GM |
3535 | } |
3536 | } | |
3537 | } | |
3538 | else | |
090c68b9 KS |
3539 | store_kbd_macro_char (c); |
3540 | ||
3541 | if (!recorded) | |
e8a50785 GM |
3542 | { |
3543 | total_keys++; | |
3544 | ASET (recent_keys, recent_keys_index, c); | |
3545 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3546 | recent_keys_index = 0; | |
3547 | } | |
090c68b9 KS |
3548 | else if (recorded < 0) |
3549 | { | |
3550 | /* We need to remove one or two events from recent_keys. | |
3551 | To do this, we simply put nil at those events and move the | |
3552 | recent_keys_index backwards over those events. Usually, | |
3553 | users will never see those nil events, as they will be | |
3554 | overwritten by the command keys entered to see recent_keys | |
3555 | (e.g. C-h l). */ | |
3556 | ||
3557 | while (recorded++ < 0 && total_keys > 0) | |
3558 | { | |
3559 | if (total_keys < NUM_RECENT_KEYS) | |
3560 | total_keys--; | |
3561 | if (--recent_keys_index < 0) | |
3562 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3563 | ASET (recent_keys, recent_keys_index, Qnil); | |
3564 | } | |
3565 | } | |
3566 | ||
3567 | num_nonmacro_input_events++; | |
c60ee5e7 | 3568 | |
e4fe371d RS |
3569 | /* Write c to the dribble file. If c is a lispy event, write |
3570 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3571 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3572 | if (dribble) | |
3573 | { | |
34f5c10f | 3574 | BLOCK_INPUT; |
e4fe371d RS |
3575 | if (INTEGERP (c)) |
3576 | { | |
3577 | if (XUINT (c) < 0x100) | |
3578 | putc (XINT (c), dribble); | |
3579 | else | |
6de34814 | 3580 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3581 | } |
3582 | else | |
3583 | { | |
3584 | Lisp_Object dribblee; | |
3585 | ||
3586 | /* If it's a structured event, take the event header. */ | |
3587 | dribblee = EVENT_HEAD (c); | |
3588 | ||
3589 | if (SYMBOLP (dribblee)) | |
3590 | { | |
3591 | putc ('<', dribble); | |
d5db4077 KR |
3592 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3593 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3594 | dribble); |
3595 | putc ('>', dribble); | |
3596 | } | |
3597 | } | |
3598 | ||
3599 | fflush (dribble); | |
34f5c10f | 3600 | UNBLOCK_INPUT; |
e4fe371d | 3601 | } |
e4fe371d RS |
3602 | } |
3603 | ||
284f4730 JB |
3604 | Lisp_Object |
3605 | print_help (object) | |
3606 | Lisp_Object object; | |
3607 | { | |
622de3e9 | 3608 | struct buffer *old = current_buffer; |
284f4730 | 3609 | Fprinc (object, Qnil); |
622de3e9 KH |
3610 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3611 | call0 (intern ("help-mode")); | |
3612 | set_buffer_internal (old); | |
284f4730 JB |
3613 | return Qnil; |
3614 | } | |
3615 | ||
3616 | /* Copy out or in the info on where C-g should throw to. | |
3617 | This is used when running Lisp code from within get_char, | |
3618 | in case get_char is called recursively. | |
3619 | See read_process_output. */ | |
3620 | ||
dfcf069d | 3621 | static void |
284f4730 JB |
3622 | save_getcjmp (temp) |
3623 | jmp_buf temp; | |
3624 | { | |
3625 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3626 | } | |
3627 | ||
dfcf069d | 3628 | static void |
284f4730 JB |
3629 | restore_getcjmp (temp) |
3630 | jmp_buf temp; | |
3631 | { | |
3632 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3633 | } | |
284f4730 | 3634 | \f |
a612e298 RS |
3635 | /* Low level keyboard/mouse input. |
3636 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3637 | kbd_buffer_get_event retrieves them. */ |
a612e298 | 3638 | |
e0f24100 | 3639 | /* Return true if there are any events in the queue that read-char |
a612e298 RS |
3640 | would return. If this returns false, a read-char would block. */ |
3641 | static int | |
a2d5fca0 JD |
3642 | readable_events (flags) |
3643 | int flags; | |
a612e298 | 3644 | { |
a2d5fca0 JD |
3645 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3646 | timer_check (1); | |
4ec4ed6a | 3647 | |
a2d5fca0 JD |
3648 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3649 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3650 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3651 | { |
354344a2 YM |
3652 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3653 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3654 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3655 | #endif | |
3656 | )) | |
20057d52 JD |
3657 | { |
3658 | struct input_event *event; | |
3659 | ||
3660 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3661 | ? kbd_fetch_ptr | |
3662 | : kbd_buffer); | |
3663 | ||
354344a2 YM |
3664 | do |
3665 | { | |
3666 | if (!( | |
3667 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3668 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3669 | #endif | |
3670 | event->kind == FOCUS_IN_EVENT) | |
3671 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3672 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3673 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3674 | && event->part == scroll_bar_handle | |
3675 | && event->modifiers == 0) | |
3676 | #endif | |
3677 | ) | |
3678 | return 1; | |
3679 | event++; | |
20057d52 JD |
3680 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3681 | event = kbd_buffer; | |
354344a2 YM |
3682 | } |
3683 | while (event != kbd_store_ptr); | |
20057d52 | 3684 | } |
354344a2 YM |
3685 | else |
3686 | return 1; | |
a0ba8995 RS |
3687 | } |
3688 | ||
ae372f41 | 3689 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a2d5fca0 JD |
3690 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3691 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3692 | return 1; |
3693 | #endif | |
1e8bd3da | 3694 | if (single_kboard) |
4c52b668 | 3695 | { |
c5fdd383 | 3696 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3697 | return 1; |
3698 | } | |
3699 | else | |
3700 | { | |
c5fdd383 KH |
3701 | KBOARD *kb; |
3702 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3703 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3704 | return 1; |
3705 | } | |
beecf6a1 | 3706 | return 0; |
a612e298 RS |
3707 | } |
3708 | ||
3709 | /* Set this for debugging, to have a way to get out */ | |
3710 | int stop_character; | |
284f4730 | 3711 | |
c5fdd383 KH |
3712 | #ifdef MULTI_KBOARD |
3713 | static KBOARD * | |
3714 | event_to_kboard (event) | |
5798cf15 KH |
3715 | struct input_event *event; |
3716 | { | |
3717 | Lisp_Object frame; | |
3718 | frame = event->frame_or_window; | |
3719 | if (CONSP (frame)) | |
7539e11f | 3720 | frame = XCAR (frame); |
5798cf15 KH |
3721 | else if (WINDOWP (frame)) |
3722 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3723 | ||
3724 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3725 | For now, just ignore the problem. |
3726 | Also ignore dead frames here. */ | |
3727 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3728 | return 0; |
3729 | else | |
c5fdd383 | 3730 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3731 | } |
3732 | #endif | |
3733 | ||
2a84c6da KS |
3734 | |
3735 | Lisp_Object Vthrow_on_input; | |
3736 | ||
284f4730 JB |
3737 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3738 | ||
3739 | void | |
3740 | kbd_buffer_store_event (event) | |
3741 | register struct input_event *event; | |
6b61353c KH |
3742 | { |
3743 | kbd_buffer_store_event_hold (event, 0); | |
3744 | } | |
3745 | ||
3746 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3747 | ||
3748 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3749 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3750 | Else, if EVENT is a quit event, store the quit event | |
3751 | in HOLD_QUIT, and return (thus ignoring further events). | |
3752 | ||
3753 | This is used in read_avail_input to postpone the processing | |
3754 | of the quit event until all subsequent input events have been | |
3755 | parsed (and discarded). | |
3756 | */ | |
3757 | ||
3758 | void | |
3759 | kbd_buffer_store_event_hold (event, hold_quit) | |
3760 | register struct input_event *event; | |
3761 | struct input_event *hold_quit; | |
284f4730 | 3762 | { |
3b8f9651 | 3763 | if (event->kind == NO_EVENT) |
284f4730 JB |
3764 | abort (); |
3765 | ||
6b61353c KH |
3766 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3767 | return; | |
3768 | ||
3b8f9651 | 3769 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3770 | { |
e9bf89a0 | 3771 | register int c = event->code & 0377; |
284f4730 | 3772 | |
faf5e407 JB |
3773 | if (event->modifiers & ctrl_modifier) |
3774 | c = make_ctrl_char (c); | |
3775 | ||
9fd7d808 RS |
3776 | c |= (event->modifiers |
3777 | & (meta_modifier | alt_modifier | |
3778 | | hyper_modifier | super_modifier)); | |
3779 | ||
86e5706b | 3780 | if (c == quit_char) |
284f4730 | 3781 | { |
c5fdd383 | 3782 | #ifdef MULTI_KBOARD |
d6805803 | 3783 | KBOARD *kb = FRAME_KBOARD (XFRAME (event->frame_or_window)); |
5798cf15 KH |
3784 | struct input_event *sp; |
3785 | ||
d6805803 | 3786 | if (single_kboard && kb != current_kboard) |
5798cf15 | 3787 | { |
c5fdd383 | 3788 | kb->kbd_queue |
5798cf15 KH |
3789 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3790 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3791 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3792 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3793 | { | |
3794 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3795 | sp = kbd_buffer; | |
3796 | ||
c5fdd383 | 3797 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3798 | { |
3b8f9651 | 3799 | sp->kind = NO_EVENT; |
5798cf15 | 3800 | sp->frame_or_window = Qnil; |
da8f7368 | 3801 | sp->arg = Qnil; |
5798cf15 KH |
3802 | } |
3803 | } | |
3804 | return; | |
3805 | } | |
3806 | #endif | |
3e51c7b7 | 3807 | |
6b61353c KH |
3808 | if (hold_quit) |
3809 | { | |
3810 | bcopy (event, (char *) hold_quit, sizeof (*event)); | |
3811 | return; | |
3812 | } | |
3813 | ||
284f4730 | 3814 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3815 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3816 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3817 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3818 | { |
9b8eb840 | 3819 | Lisp_Object focus; |
4bb994d1 | 3820 | |
9b8eb840 | 3821 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3822 | if (NILP (focus)) |
beecf6a1 | 3823 | focus = event->frame_or_window; |
4c52b668 KH |
3824 | internal_last_event_frame = focus; |
3825 | Vlast_event_frame = focus; | |
4bb994d1 | 3826 | } |
3e51c7b7 | 3827 | |
ffd56f97 | 3828 | last_event_timestamp = event->timestamp; |
114a8b8c | 3829 | handle_interrupt (); |
284f4730 JB |
3830 | return; |
3831 | } | |
3832 | ||
3833 | if (c && c == stop_character) | |
3834 | { | |
3835 | sys_suspend (); | |
3836 | return; | |
3837 | } | |
284f4730 | 3838 | } |
3b8f9651 | 3839 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3840 | Just ignore the second one. */ |
3b8f9651 | 3841 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3842 | && kbd_fetch_ptr != kbd_store_ptr |
6b61353c KH |
3843 | && ((kbd_store_ptr == kbd_buffer |
3844 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3845 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3846 | return; |
284f4730 | 3847 | |
beecf6a1 KH |
3848 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3849 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3850 | |
3851 | /* Don't let the very last slot in the buffer become full, | |
3852 | since that would make the two pointers equal, | |
3853 | and that is indistinguishable from an empty buffer. | |
3854 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3855 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3856 | { |
e3f6e7c7 KS |
3857 | *kbd_store_ptr = *event; |
3858 | ++kbd_store_ptr; | |
3859 | } | |
2a84c6da | 3860 | |
85e7f477 RS |
3861 | /* If we're inside while-no-input, and this event qualifies |
3862 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3863 | if (!NILP (Vthrow_on_input) |
3864 | && event->kind != FOCUS_IN_EVENT | |
3865 | && event->kind != HELP_EVENT | |
b809d9e7 | 3866 | && event->kind != DEICONIFY_EVENT) |
85e7f477 RS |
3867 | { |
3868 | Vquit_flag = Vthrow_on_input; | |
3869 | /* If we're inside a function that wants immediate quits, | |
3870 | do it now. */ | |
3871 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3872 | { | |
3873 | immediate_quit = 0; | |
3874 | sigfree (); | |
3875 | QUIT; | |
3876 | } | |
3877 | } | |
e3f6e7c7 | 3878 | } |
c60ee5e7 | 3879 | |
da8f7368 | 3880 | |
e3f6e7c7 | 3881 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3882 | |
e3f6e7c7 KS |
3883 | void |
3884 | kbd_buffer_unget_event (event) | |
3885 | register struct input_event *event; | |
3886 | { | |
3887 | if (kbd_fetch_ptr == kbd_buffer) | |
3888 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3889 | ||
3890 | /* Don't let the very last slot in the buffer become full, */ | |
3891 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3892 | { | |
3893 | --kbd_fetch_ptr; | |
3894 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3895 | } |
3896 | } | |
8dfd92c9 GM |
3897 | |
3898 | ||
f139e559 | 3899 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3900 | SIZE events. If there's not enough room in BUFP, ignore this |
3901 | event. | |
8dfd92c9 GM |
3902 | |
3903 | HELP is the help form. | |
3904 | ||
3905 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3906 | Lisp object where the help was found (a buffer, a string, an |
3907 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3908 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3909 | |
3910 | Value is the number of input_events generated. */ | |
3911 | ||
6b61353c KH |
3912 | void |
3913 | gen_help_event (help, frame, window, object, pos) | |
2190735a | 3914 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3915 | int pos; |
3916 | { | |
6b61353c KH |
3917 | struct input_event event; |
3918 | ||
3919 | EVENT_INIT (event); | |
3920 | ||
3921 | event.kind = HELP_EVENT; | |
3922 | event.frame_or_window = frame; | |
3923 | event.arg = object; | |
3924 | event.x = WINDOWP (window) ? window : frame; | |
3925 | event.y = help; | |
3926 | event.code = pos; | |
3927 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3928 | } |
3929 | ||
3930 | ||
3931 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3932 | ||
3933 | void | |
3934 | kbd_buffer_store_help_event (frame, help) | |
3935 | Lisp_Object frame, help; | |
3936 | { | |
3937 | struct input_event event; | |
3938 | ||
3939 | event.kind = HELP_EVENT; | |
3940 | event.frame_or_window = frame; | |
3941 | event.arg = Qnil; | |
2e1a49ad SM |
3942 | event.x = Qnil; |
3943 | event.y = help; | |
8dfd92c9 GM |
3944 | event.code = 0; |
3945 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3946 | } |
3947 | ||
a612e298 | 3948 | \f |
07de30b9 | 3949 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3950 | NO_EVENT. */ |
07de30b9 GV |
3951 | void |
3952 | discard_mouse_events () | |
3953 | { | |
3954 | struct input_event *sp; | |
3955 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3956 | { | |
3957 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3958 | sp = kbd_buffer; | |
3959 | ||
3b8f9651 | 3960 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3961 | || sp->kind == WHEEL_EVENT |
13899bc1 | 3962 | || sp->kind == HORIZ_WHEEL_EVENT |
e416374c NR |
3963 | #ifdef HAVE_GPM |
3964 | || sp->kind == GPM_CLICK_EVENT | |
07de30b9 | 3965 | #endif |
3b8f9651 | 3966 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3967 | { |
3b8f9651 | 3968 | sp->kind = NO_EVENT; |
07de30b9 GV |
3969 | } |
3970 | } | |
3971 | } | |
eeabfe76 | 3972 | |
0bbfdc25 GM |
3973 | |
3974 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3975 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3976 | |
3b8f9651 | 3977 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3978 | the input queue, possibly leaving the input queue empty if there |
3979 | are no real input events. */ | |
3980 | ||
eeabfe76 EZ |
3981 | int |
3982 | kbd_buffer_events_waiting (discard) | |
3983 | int discard; | |
3984 | { | |
3985 | struct input_event *sp; | |
c60ee5e7 | 3986 | |
0bbfdc25 | 3987 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3988 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3989 | ++sp) |
eeabfe76 EZ |
3990 | { |
3991 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3992 | sp = kbd_buffer; | |
eeabfe76 | 3993 | } |
0bbfdc25 | 3994 | |
eeabfe76 EZ |
3995 | if (discard) |
3996 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3997 | |
3b8f9651 | 3998 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3999 | } |
0bbfdc25 | 4000 | |
07de30b9 | 4001 | \f |
0bbfdc25 GM |
4002 | /* Clear input event EVENT. */ |
4003 | ||
4004 | static INLINE void | |
4005 | clear_event (event) | |
4006 | struct input_event *event; | |
4007 | { | |
3b8f9651 | 4008 | event->kind = NO_EVENT; |
0bbfdc25 GM |
4009 | } |
4010 | ||
4011 | ||
a612e298 RS |
4012 | /* Read one event from the event buffer, waiting if necessary. |
4013 | The value is a Lisp object representing the event. | |
4014 | The value is nil for an event that should be ignored, | |
4015 | or that was handled here. | |
4016 | We always read and discard one event. */ | |
284f4730 JB |
4017 | |
4018 | static Lisp_Object | |
179f689c | 4019 | kbd_buffer_get_event (kbp, used_mouse_menu, end_time) |
410d4de9 | 4020 | KBOARD **kbp; |
83d68044 | 4021 | int *used_mouse_menu; |
179f689c | 4022 | EMACS_TIME *end_time; |
284f4730 JB |
4023 | { |
4024 | register int c; | |
4025 | Lisp_Object obj; | |
4026 | ||
4027 | if (noninteractive) | |
4028 | { | |
4029 | c = getchar (); | |
18cd2eeb | 4030 | XSETINT (obj, c); |
f5b56972 | 4031 | *kbp = current_kboard; |
284f4730 JB |
4032 | return obj; |
4033 | } | |
4034 | ||
4035 | /* Wait until there is input available. */ | |
4036 | for (;;) | |
4037 | { | |
15d81484 MR |
4038 | /* Break loop if there's an unread command event. Needed in |
4039 | moused window autoselection which uses a timer to insert such | |
4040 | events. */ | |
4041 | if (CONSP (Vunread_command_events)) | |
4042 | break; | |
033b73e2 | 4043 | |
beecf6a1 KH |
4044 | if (kbd_fetch_ptr != kbd_store_ptr) |
4045 | break; | |
ae372f41 | 4046 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4047 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4048 | break; |
beecf6a1 | 4049 | #endif |
284f4730 JB |
4050 | |
4051 | /* If the quit flag is set, then read_char will return | |
4052 | quit_char, so that counts as "available input." */ | |
4053 | if (!NILP (Vquit_flag)) | |
4054 | quit_throw_to_read_char (); | |
4055 | ||
4056 | /* One way or another, wait until input is available; then, if | |
4057 | interrupt handlers have not read it, read it now. */ | |
4058 | ||
4059 | #ifdef OLDVMS | |
4060 | wait_for_kbd_input (); | |
4061 | #else | |
4062 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4063 | #ifdef SIGIO | |
4064 | gobble_input (0); | |
4065 | #endif /* SIGIO */ | |
beecf6a1 KH |
4066 | if (kbd_fetch_ptr != kbd_store_ptr) |
4067 | break; | |
ae372f41 | 4068 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 4069 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
4070 | break; |
4071 | #endif | |
179f689c CY |
4072 | if (end_time) |
4073 | { | |
4074 | EMACS_TIME duration; | |
4075 | EMACS_GET_TIME (duration); | |
6b657e42 EZ |
4076 | if (EMACS_TIME_GE (duration, *end_time)) |
4077 | return Qnil; /* finished waiting */ | |
179f689c | 4078 | else |
6b657e42 EZ |
4079 | { |
4080 | EMACS_SUB_TIME (duration, *end_time, duration); | |
4081 | wait_reading_process_output (EMACS_SECS (duration), | |
4082 | EMACS_USECS (duration), | |
4083 | -1, 1, Qnil, NULL, 0); | |
4084 | } | |
179f689c CY |
4085 | } |
4086 | else | |
d64b707c | 4087 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 4088 | |
179f689c CY |
4089 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
4090 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
4091 | read_avail_input (1); | |
284f4730 JB |
4092 | #endif /* not VMS */ |
4093 | } | |
4094 | ||
303b5b3f RS |
4095 | if (CONSP (Vunread_command_events)) |
4096 | { | |
4097 | Lisp_Object first; | |
7539e11f KR |
4098 | first = XCAR (Vunread_command_events); |
4099 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
4100 | *kbp = current_kboard; |
4101 | return first; | |
4102 | } | |
4103 | ||
284f4730 JB |
4104 | /* At this point, we know that there is a readable event available |
4105 | somewhere. If the event queue is empty, then there must be a | |
4106 | mouse movement enabled and available. */ | |
beecf6a1 | 4107 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 4108 | { |
cd21b839 | 4109 | struct input_event *event; |
3e51c7b7 | 4110 | |
beecf6a1 KH |
4111 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4112 | ? kbd_fetch_ptr | |
4113 | : kbd_buffer); | |
3e51c7b7 | 4114 | |
cd21b839 | 4115 | last_event_timestamp = event->timestamp; |
cd21b839 | 4116 | |
c5fdd383 KH |
4117 | #ifdef MULTI_KBOARD |
4118 | *kbp = event_to_kboard (event); | |
4119 | if (*kbp == 0) | |
4120 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 4121 | #else |
c5fdd383 | 4122 | *kbp = &the_only_kboard; |
5798cf15 | 4123 | #endif |
beecf6a1 | 4124 | |
4bb994d1 JB |
4125 | obj = Qnil; |
4126 | ||
48e416d4 | 4127 | /* These two kinds of events get special handling |
a612e298 RS |
4128 | and don't actually appear to the command loop. |
4129 | We return nil for them. */ | |
e3f6e7c7 KS |
4130 | if (event->kind == SELECTION_REQUEST_EVENT |
4131 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 4132 | { |
598a9fa7 | 4133 | #ifdef HAVE_X11 |
1e8bd3da RS |
4134 | struct input_event copy; |
4135 | ||
4581e928 RS |
4136 | /* Remove it from the buffer before processing it, |
4137 | since otherwise swallow_events will see it | |
4138 | and process it again. */ | |
1e8bd3da | 4139 | copy = *event; |
beecf6a1 | 4140 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4141 | input_pending = readable_events (0); |
e3f6e7c7 | 4142 | x_handle_selection_event (©); |
598a9fa7 JB |
4143 | #else |
4144 | /* We're getting selection request events, but we don't have | |
4145 | a window system. */ | |
4146 | abort (); | |
4147 | #endif | |
48e416d4 RS |
4148 | } |
4149 | ||
e0f712ba | 4150 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 4151 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 4152 | { |
bbdc2092 RS |
4153 | /* Make an event (delete-frame (FRAME)). */ |
4154 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 4155 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 4156 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4157 | } |
1a578e9b | 4158 | #endif |
fca32d15 | 4159 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 4160 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
4161 | { |
4162 | /* Make an event (iconify-frame (FRAME)). */ | |
4163 | obj = Fcons (event->frame_or_window, Qnil); | |
4164 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 4165 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4166 | } |
3b8f9651 | 4167 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
4168 | { |
4169 | /* Make an event (make-frame-visible (FRAME)). */ | |
4170 | obj = Fcons (event->frame_or_window, Qnil); | |
4171 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 4172 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
4173 | } |
4174 | #endif | |
3b8f9651 | 4175 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
4176 | { |
4177 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 4178 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 4179 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 4180 | } |
488dd4c4 JD |
4181 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
4182 | || defined (USE_GTK) | |
3b8f9651 | 4183 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
4184 | { |
4185 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 4186 | input_pending = readable_events (0); |
e649d076 RS |
4187 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
4188 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 4189 | } |
1161d367 | 4190 | #endif |
c16dab62 | 4191 | #if defined (WINDOWSNT) || defined (MAC_OS) |
3b8f9651 | 4192 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 | 4193 | { |
c16dab62 YM |
4194 | #ifdef MAC_OS |
4195 | /* Make an event (language-change (KEY_SCRIPT)). */ | |
4196 | obj = Fcons (make_number (event->code), Qnil); | |
4197 | #else | |
1161d367 | 4198 | /* Make an event (language-change (FRAME CHARSET LCID)). */ |
d352abdf | 4199 | obj = Fcons (event->frame_or_window, Qnil); |
c16dab62 | 4200 | #endif |
1161d367 GV |
4201 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
4202 | kbd_fetch_ptr = event + 1; | |
4203 | } | |
099787c1 | 4204 | #endif |
3b8f9651 | 4205 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
4206 | { |
4207 | obj = Fcons (Qsave_session, Qnil); | |
4208 | kbd_fetch_ptr = event + 1; | |
4209 | } | |
a612e298 | 4210 | /* Just discard these, by returning nil. |
c5fdd383 | 4211 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
4212 | when we need to randomly delete events from the queue. |
4213 | (They shouldn't otherwise be found in the buffer, | |
4214 | but on some machines it appears they do show up | |
c5fdd383 | 4215 | even without MULTI_KBOARD.) */ |
3b8f9651 | 4216 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 4217 | mouse events during a popup-menu call. */ |
3b8f9651 | 4218 | else if (event->kind == NO_EVENT) |
beecf6a1 | 4219 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
4220 | else if (event->kind == HELP_EVENT) |
4221 | { | |
2190735a | 4222 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 4223 | |
8dfd92c9 GM |
4224 | frame = event->frame_or_window; |
4225 | object = event->arg; | |
2e1a49ad SM |
4226 | position = make_number (event->code); |
4227 | window = event->x; | |
4228 | help = event->y; | |
0bbfdc25 | 4229 | clear_event (event); |
e4457b09 GM |
4230 | |
4231 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4232 | if (!WINDOWP (window)) |
4233 | window = Qnil; | |
4234 | obj = Fcons (Qhelp_echo, | |
4235 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4236 | } |
c51c7093 GM |
4237 | else if (event->kind == FOCUS_IN_EVENT) |
4238 | { | |
4239 | /* Notification of a FocusIn event. The frame receiving the | |
4240 | focus is in event->frame_or_window. Generate a | |
4241 | switch-frame event if necessary. */ | |
4242 | Lisp_Object frame, focus; | |
4243 | ||
4244 | frame = event->frame_or_window; | |
4245 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4246 | if (FRAMEP (focus)) | |
4247 | frame = focus; | |
4248 | ||
4249 | if (!EQ (frame, internal_last_event_frame) | |
4250 | && !EQ (frame, selected_frame)) | |
4251 | obj = make_lispy_switch_frame (frame); | |
4252 | internal_last_event_frame = frame; | |
4253 | kbd_fetch_ptr = event + 1; | |
4254 | } | |
033b73e2 MA |
4255 | #ifdef HAVE_DBUS |
4256 | else if (event->kind == DBUS_EVENT) | |
4257 | { | |
4258 | obj = make_lispy_event (event); | |
4259 | kbd_fetch_ptr = event + 1; | |
4260 | } | |
4261 | #endif | |
1e12dd87 RS |
4262 | else |
4263 | { | |
c51c7093 GM |
4264 | /* If this event is on a different frame, return a switch-frame this |
4265 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4266 | Lisp_Object frame; |
1e12dd87 | 4267 | Lisp_Object focus; |
7b4aedb9 | 4268 | |
9b8eb840 | 4269 | frame = event->frame_or_window; |
2470a66f | 4270 | if (CONSP (frame)) |
7539e11f | 4271 | frame = XCAR (frame); |
2470a66f | 4272 | else if (WINDOWP (frame)) |
1e12dd87 | 4273 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4274 | |
1e12dd87 RS |
4275 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4276 | if (! NILP (focus)) | |
4277 | frame = focus; | |
07d2b8de | 4278 | |
4c52b668 | 4279 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4280 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4281 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4282 | internal_last_event_frame = frame; |
4bb994d1 | 4283 | |
1e12dd87 RS |
4284 | /* If we didn't decide to make a switch-frame event, go ahead |
4285 | and build a real event from the queue entry. */ | |
cd21b839 | 4286 | |
1e12dd87 RS |
4287 | if (NILP (obj)) |
4288 | { | |
4289 | obj = make_lispy_event (event); | |
c60ee5e7 | 4290 | |
488dd4c4 JD |
4291 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \ |
4292 | || defined (USE_GTK) | |
83d68044 KH |
4293 | /* If this was a menu selection, then set the flag to inhibit |
4294 | writing to last_nonmenu_event. Don't do this if the event | |
4295 | we're returning is (menu-bar), though; that indicates the | |
4296 | beginning of the menu sequence, and we might as well leave | |
4297 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4298 | if (used_mouse_menu |
4299 | && !EQ (event->frame_or_window, event->arg) | |
4300 | && (event->kind == MENU_BAR_EVENT | |
4301 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4302 | *used_mouse_menu = 1; |
4303 | #endif | |
1e12dd87 RS |
4304 | |
4305 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4306 | clear_event (event); |
beecf6a1 | 4307 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4308 | } |
4bb994d1 | 4309 | } |
284f4730 | 4310 | } |
ae372f41 | 4311 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a612e298 | 4312 | /* Try generating a mouse motion event. */ |
f3253854 | 4313 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4314 | { |
f3253854 | 4315 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4316 | Lisp_Object bar_window; |
3c370943 | 4317 | enum scroll_bar_part part; |
e5d77022 JB |
4318 | Lisp_Object x, y; |
4319 | unsigned long time; | |
284f4730 | 4320 | |
c5fdd383 | 4321 | *kbp = current_kboard; |
6ed8eeff | 4322 | /* Note that this uses F to determine which terminal to look at. |
e177ac3a RS |
4323 | If there is no valid info, it does not store anything |
4324 | so x remains nil. */ | |
4325 | x = Qnil; | |
3b7fbceb | 4326 | |
c3b4957f | 4327 | /* XXX Can f or mouse_position_hook be NULL here? */ |
6ed8eeff KL |
4328 | if (f && FRAME_TERMINAL (f)->mouse_position_hook) |
4329 | (*FRAME_TERMINAL (f)->mouse_position_hook) (&f, 0, &bar_window, | |
4330 | &part, &x, &y, &time); | |
4bb994d1 JB |
4331 | |
4332 | obj = Qnil; | |
284f4730 | 4333 | |
4bb994d1 JB |
4334 | /* Decide if we should generate a switch-frame event. Don't |
4335 | generate switch-frame events for motion outside of all Emacs | |
4336 | frames. */ | |
e177ac3a | 4337 | if (!NILP (x) && f) |
cd21b839 | 4338 | { |
9b8eb840 | 4339 | Lisp_Object frame; |
4bb994d1 | 4340 | |
9b8eb840 | 4341 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4342 | if (NILP (frame)) |
18cd2eeb | 4343 | XSETFRAME (frame, f); |
4bb994d1 | 4344 | |
4c52b668 | 4345 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4346 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4347 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4348 | internal_last_event_frame = frame; |
cd21b839 | 4349 | } |
4bb994d1 | 4350 | |
df0f2ba1 | 4351 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4352 | return a mouse-motion event. */ |
e177ac3a | 4353 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4354 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4355 | } |
ae372f41 | 4356 | #endif /* HAVE_MOUSE || HAVE GPM */ |
284f4730 JB |
4357 | else |
4358 | /* We were promised by the above while loop that there was | |
4359 | something for us to read! */ | |
4360 | abort (); | |
4361 | ||
d9d4c147 | 4362 | input_pending = readable_events (0); |
284f4730 | 4363 | |
4c52b668 | 4364 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4365 | |
284f4730 JB |
4366 | return (obj); |
4367 | } | |
a612e298 RS |
4368 | \f |
4369 | /* Process any events that are not user-visible, | |
4370 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4371 | |
4372 | void | |
d9d4c147 KH |
4373 | swallow_events (do_display) |
4374 | int do_display; | |
3a3b9632 | 4375 | { |
87dd9b9b RS |
4376 | int old_timers_run; |
4377 | ||
beecf6a1 | 4378 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4379 | { |
4380 | struct input_event *event; | |
4381 | ||
beecf6a1 KH |
4382 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4383 | ? kbd_fetch_ptr | |
4384 | : kbd_buffer); | |
3a3b9632 RS |
4385 | |
4386 | last_event_timestamp = event->timestamp; | |
4387 | ||
4388 | /* These two kinds of events get special handling | |
4389 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4390 | if (event->kind == SELECTION_REQUEST_EVENT |
4391 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4392 | { |
4393 | #ifdef HAVE_X11 | |
4581e928 | 4394 | struct input_event copy; |
e0301c07 RS |
4395 | |
4396 | /* Remove it from the buffer before processing it, | |
4397 | since otherwise swallow_events called recursively could see it | |
4398 | and process it again. */ | |
4581e928 | 4399 | copy = *event; |
beecf6a1 | 4400 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4401 | input_pending = readable_events (0); |
e3f6e7c7 | 4402 | x_handle_selection_event (©); |
3a3b9632 RS |
4403 | #else |
4404 | /* We're getting selection request events, but we don't have | |
4405 | a window system. */ | |
4406 | abort (); | |
4407 | #endif | |
4408 | } | |
4409 | else | |
4410 | break; | |
4411 | } | |
4412 | ||
87dd9b9b | 4413 | old_timers_run = timers_run; |
a2d5fca0 | 4414 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4415 | |
4416 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4417 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4418 | } |
a612e298 | 4419 | \f |
d9d4c147 KH |
4420 | /* Record the start of when Emacs is idle, |
4421 | for the sake of running idle-time timers. */ | |
4422 | ||
5c12e63f | 4423 | static void |
d9d4c147 KH |
4424 | timer_start_idle () |
4425 | { | |
4426 | Lisp_Object timers; | |
4427 | ||
4428 | /* If we are already in the idle state, do nothing. */ | |
4429 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4430 | return; | |
4431 | ||
4432 | EMACS_GET_TIME (timer_idleness_start_time); | |
4433 | ||
3021d3a9 RS |
4434 | timer_last_idleness_start_time = timer_idleness_start_time; |
4435 | ||
d9d4c147 | 4436 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4437 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4438 | { |
4439 | Lisp_Object timer; | |
4440 | ||
7539e11f | 4441 | timer = XCAR (timers); |
d9d4c147 KH |
4442 | |
4443 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4444 | continue; | |
4445 | XVECTOR (timer)->contents[0] = Qnil; | |
4446 | } | |
4447 | } | |
4448 | ||
4449 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4450 | ||
5c12e63f | 4451 | static void |
d9d4c147 KH |
4452 | timer_stop_idle () |
4453 | { | |
4454 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4455 | } | |
4456 | ||
5c12e63f KS |
4457 | /* Resume idle timer from last idle start time. */ |
4458 | ||
4459 | static void | |
4460 | timer_resume_idle () | |
4461 | { | |
4462 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4463 | return; | |
4464 | ||
4465 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4466 | } | |
4467 | ||
e044e87c RS |
4468 | /* This is only for debugging. */ |
4469 | struct input_event last_timer_event; | |
4470 | ||
58555d81 SM |
4471 | /* List of elisp functions to call, delayed because they were generated in |
4472 | a context where Elisp could not be safely run (e.g. redisplay, signal, | |
4473 | ...). Each lement has the form (FUN . ARGS). */ | |
4474 | Lisp_Object pending_funcalls; | |
4475 | ||
4476 | extern Lisp_Object Qapply; | |
4477 | ||
c04cbc3b RS |
4478 | /* Check whether a timer has fired. To prevent larger problems we simply |
4479 | disregard elements that are not proper timers. Do not make a circular | |
4480 | timer list for the time being. | |
4481 | ||
4482 | Returns the number of seconds to wait until the next timer fires. If a | |
4483 | timer is triggering now, return zero seconds. | |
4484 | If no timer is active, return -1 seconds. | |
4485 | ||
4ec4ed6a RS |
4486 | If a timer is ripe, we run it, with quitting turned off. |
4487 | ||
4488 | DO_IT_NOW is now ignored. It used to mean that we should | |
4489 | run the timer directly instead of queueing a timer-event. | |
4490 | Now we always run timers directly. */ | |
c04cbc3b RS |
4491 | |
4492 | EMACS_TIME | |
4493 | timer_check (do_it_now) | |
4494 | int do_it_now; | |
4495 | { | |
4496 | EMACS_TIME nexttime; | |
9291c072 RS |
4497 | EMACS_TIME now, idleness_now; |
4498 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4499 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4500 | |
c04cbc3b RS |
4501 | EMACS_SET_SECS (nexttime, -1); |
4502 | EMACS_SET_USECS (nexttime, -1); | |
4503 | ||
9291c072 | 4504 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4505 | timers = Vtimer_list; |
9291c072 RS |
4506 | /* Consider the idle timers only if Emacs is idle. */ |
4507 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4508 | idle_timers = Vtimer_idle_list; | |
4509 | else | |
4510 | idle_timers = Qnil; | |
4511 | chosen_timer = Qnil; | |
4512 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4513 | |
58555d81 SM |
4514 | /* First run the code that was delayed. */ |
4515 | while (CONSP (pending_funcalls)) | |
4516 | { | |
4517 | Lisp_Object funcall = XCAR (pending_funcalls); | |
4518 | pending_funcalls = XCDR (pending_funcalls); | |
4519 | safe_call2 (Qapply, XCAR (funcall), XCDR (funcall)); | |
4520 | } | |
4521 | ||
9291c072 | 4522 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4523 | { |
9291c072 RS |
4524 | EMACS_GET_TIME (now); |
4525 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4526 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4527 | } | |
c04cbc3b | 4528 | |
9291c072 RS |
4529 | while (CONSP (timers) || CONSP (idle_timers)) |
4530 | { | |
9291c072 | 4531 | Lisp_Object *vector; |
8c907a56 | 4532 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4533 | EMACS_TIME timer_time, idle_timer_time; |
4534 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4535 | ||
4536 | /* Skip past invalid timers and timers already handled. */ | |
4537 | if (!NILP (timers)) | |
c04cbc3b | 4538 | { |
7539e11f | 4539 | timer = XCAR (timers); |
9291c072 RS |
4540 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4541 | { | |
7539e11f | 4542 | timers = XCDR (timers); |
9291c072 RS |
4543 | continue; |
4544 | } | |
4545 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4546 | |
9291c072 RS |
4547 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4548 | || !INTEGERP (vector[3]) | |
4549 | || ! NILP (vector[0])) | |
4550 | { | |
7539e11f | 4551 | timers = XCDR (timers); |
9291c072 RS |
4552 | continue; |
4553 | } | |
4554 | } | |
4555 | if (!NILP (idle_timers)) | |
4556 | { | |
7539e11f | 4557 | timer = XCAR (idle_timers); |
d9d4c147 | 4558 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4559 | { |
7539e11f | 4560 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4561 | continue; |
4562 | } | |
d9d4c147 KH |
4563 | vector = XVECTOR (timer)->contents; |
4564 | ||
4565 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4566 | || !INTEGERP (vector[3]) |
4567 | || ! NILP (vector[0])) | |
4568 | { | |
7539e11f | 4569 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4570 | continue; |
4571 | } | |
4572 | } | |
d9d4c147 | 4573 | |
9291c072 RS |
4574 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4575 | based on the next ordinary timer. | |
4576 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4577 | this timer becomes ripe (negative if it's already ripe). */ | |
4578 | if (!NILP (timers)) | |
4579 | { | |
7539e11f | 4580 | timer = XCAR (timers); |
9291c072 | 4581 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4582 | EMACS_SET_SECS (timer_time, |
4583 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4584 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4585 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4586 | } | |
ba8dfba8 | 4587 | |
9291c072 RS |
4588 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4589 | based on the next idle timer. */ | |
4590 | if (!NILP (idle_timers)) | |
4591 | { | |
7539e11f | 4592 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4593 | vector = XVECTOR (idle_timer)->contents; |
4594 | EMACS_SET_SECS (idle_timer_time, | |
4595 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4596 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4597 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4598 | } | |
ba8dfba8 | 4599 | |
9291c072 RS |
4600 | /* Decide which timer is the next timer, |
4601 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4602 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4603 | |
9291c072 RS |
4604 | if (! NILP (timers) && ! NILP (idle_timers)) |
4605 | { | |
4606 | EMACS_TIME temp; | |
4607 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4608 | if (EMACS_TIME_NEG_P (temp)) | |
4609 | { | |
4610 | chosen_timer = timer; | |
7539e11f | 4611 | timers = XCDR (timers); |
9291c072 | 4612 | difference = timer_difference; |
c04cbc3b | 4613 | } |
d9d4c147 | 4614 | else |
d9d4c147 | 4615 | { |
9291c072 | 4616 | chosen_timer = idle_timer; |
7539e11f | 4617 | idle_timers = XCDR (idle_timers); |
9291c072 | 4618 | difference = idle_timer_difference; |
d9d4c147 | 4619 | } |
7ea13e12 | 4620 | } |
9291c072 RS |
4621 | else if (! NILP (timers)) |
4622 | { | |
4623 | chosen_timer = timer; | |
7539e11f | 4624 | timers = XCDR (timers); |
9291c072 RS |
4625 | difference = timer_difference; |
4626 | } | |
4627 | else | |
4628 | { | |
4629 | chosen_timer = idle_timer; | |
7539e11f | 4630 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4631 | difference = idle_timer_difference; |
4632 | } | |
4633 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4634 | |
bd55b860 | 4635 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4636 | if (EMACS_TIME_NEG_P (difference) |
4637 | || (EMACS_SECS (difference) == 0 | |
4638 | && EMACS_USECS (difference) == 0)) | |
4639 | { | |
4640 | if (NILP (vector[0])) | |
4641 | { | |
331379bf | 4642 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4643 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4644 | |
b3e6f69c | 4645 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
256c9c3a KL |
4646 | /* On unbind_to, resume allowing input from any kboard, if that |
4647 | was true before. */ | |
4648 | record_single_kboard_state (); | |
b3e6f69c | 4649 | #endif |
9291c072 RS |
4650 | /* Mark the timer as triggered to prevent problems if the lisp |
4651 | code fails to reschedule it right. */ | |
4652 | vector[0] = Qt; | |
4653 | ||
d925fb39 | 4654 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4655 | |
d925fb39 | 4656 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4657 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4658 | timers_run++; |
d925fb39 | 4659 | unbind_to (count, Qnil); |
4ec4ed6a | 4660 | |
d925fb39 RS |
4661 | /* Since we have handled the event, |
4662 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4663 | } |
4664 | } | |
4665 | else | |
4666 | /* When we encounter a timer that is still waiting, | |
4667 | return the amount of time to wait before it is ripe. */ | |
4668 | { | |
4669 | UNGCPRO; | |
9291c072 RS |
4670 | return difference; |
4671 | } | |
c04cbc3b | 4672 | } |
9291c072 | 4673 | |
7ea13e12 RS |
4674 | /* No timers are pending in the future. */ |
4675 | /* Return 0 if we generated an event, and -1 if not. */ | |
4676 | UNGCPRO; | |
c04cbc3b RS |
4677 | return nexttime; |
4678 | } | |
ff458d81 RS |
4679 | |
4680 | DEFUN ("current-idle-time", Fcurrent_idle_time, Scurrent_idle_time, 0, 0, 0, | |
3a704bd7 RS |
4681 | doc: /* Return the current length of Emacs idleness, or nil. |
4682 | The value when Emacs is idle is a list of three integers. The first has the | |
ff458d81 RS |
4683 | most significant 16 bits of the seconds, while the second has the |
4684 | least significant 16 bits. The third integer gives the microsecond | |
4685 | count. | |
4686 | ||
3a704bd7 RS |
4687 | The value when Emacs is not idle is nil. |
4688 | ||
ff458d81 RS |
4689 | The microsecond count is zero on systems that do not provide |
4690 | resolution finer than a second. */) | |
4691 | () | |
4692 | { | |
ff458d81 RS |
4693 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) |
4694 | { | |
966949b0 | 4695 | EMACS_TIME now, idleness_now; |
ff458d81 | 4696 | |
966949b0 KS |
4697 | EMACS_GET_TIME (now); |
4698 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
ff458d81 | 4699 | |
966949b0 KS |
4700 | return list3 (make_number ((EMACS_SECS (idleness_now) >> 16) & 0xffff), |
4701 | make_number ((EMACS_SECS (idleness_now) >> 0) & 0xffff), | |
4702 | make_number (EMACS_USECS (idleness_now))); | |
ff458d81 RS |
4703 | } |
4704 | ||
4705 | return Qnil; | |
4706 | } | |
c04cbc3b | 4707 | \f |
284f4730 | 4708 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4709 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4710 | static Lisp_Object func_key_syms; |
4711 | static Lisp_Object mouse_syms; | |
8006e4bb | 4712 | static Lisp_Object wheel_syms; |
a24dc617 | 4713 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4714 | |
e9bf89a0 RS |
4715 | /* This is a list of keysym codes for special "accent" characters. |
4716 | It parallels lispy_accent_keys. */ | |
4717 | ||
4718 | static int lispy_accent_codes[] = | |
4719 | { | |
79a7046c | 4720 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4721 | XK_dead_circumflex, |
79a7046c RS |
4722 | #else |
4723 | 0, | |
4724 | #endif | |
4725 | #ifdef XK_dead_grave | |
e9bf89a0 | 4726 | XK_dead_grave, |
79a7046c RS |
4727 | #else |
4728 | 0, | |
4729 | #endif | |
4730 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4731 | XK_dead_tilde, |
79a7046c RS |
4732 | #else |
4733 | 0, | |
4734 | #endif | |
4735 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4736 | XK_dead_diaeresis, |
79a7046c RS |
4737 | #else |
4738 | 0, | |
4739 | #endif | |
4740 | #ifdef XK_dead_macron | |
e9bf89a0 | 4741 | XK_dead_macron, |
79a7046c RS |
4742 | #else |
4743 | 0, | |
4744 | #endif | |
4745 | #ifdef XK_dead_degree | |
e9bf89a0 | 4746 | XK_dead_degree, |
79a7046c RS |
4747 | #else |
4748 | 0, | |
4749 | #endif | |
4750 | #ifdef XK_dead_acute | |
e9bf89a0 | 4751 | XK_dead_acute, |
79a7046c RS |
4752 | #else |
4753 | 0, | |
4754 | #endif | |
4755 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4756 | XK_dead_cedilla, |
79a7046c RS |
4757 | #else |
4758 | 0, | |
4759 | #endif | |
4760 | #ifdef XK_dead_breve | |
e9bf89a0 | 4761 | XK_dead_breve, |
79a7046c RS |
4762 | #else |
4763 | 0, | |
4764 | #endif | |
4765 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4766 | XK_dead_ogonek, |
79a7046c RS |
4767 | #else |
4768 | 0, | |
4769 | #endif | |
4770 | #ifdef XK_dead_caron | |
e9bf89a0 | 4771 | XK_dead_caron, |
79a7046c RS |
4772 | #else |
4773 | 0, | |
4774 | #endif | |
4775 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4776 | XK_dead_doubleacute, |
79a7046c RS |
4777 | #else |
4778 | 0, | |
4779 | #endif | |
4780 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4781 | XK_dead_abovedot, |
79a7046c RS |
4782 | #else |
4783 | 0, | |
4784 | #endif | |
ed3230db DL |
4785 | #ifdef XK_dead_abovering |
4786 | XK_dead_abovering, | |
4787 | #else | |
4788 | 0, | |
4789 | #endif | |
4790 | #ifdef XK_dead_iota | |
4791 | XK_dead_iota, | |
4792 | #else | |
4793 | 0, | |
4794 | #endif | |
4795 | #ifdef XK_dead_belowdot | |
4796 | XK_dead_belowdot, | |
4797 | #else | |
4798 | 0, | |
4799 | #endif | |
4800 | #ifdef XK_dead_voiced_sound | |
4801 | XK_dead_voiced_sound, | |
4802 | #else | |
4803 | 0, | |
4804 | #endif | |
4805 | #ifdef XK_dead_semivoiced_sound | |
4806 | XK_dead_semivoiced_sound, | |
4807 | #else | |
4808 | 0, | |
4809 | #endif | |
4810 | #ifdef XK_dead_hook | |
4811 | XK_dead_hook, | |
4812 | #else | |
4813 | 0, | |
4814 | #endif | |
4815 | #ifdef XK_dead_horn | |
4816 | XK_dead_horn, | |
4817 | #else | |
4818 | 0, | |
4819 | #endif | |
e9bf89a0 RS |
4820 | }; |
4821 | ||
4822 | /* This is a list of Lisp names for special "accent" characters. | |
4823 | It parallels lispy_accent_codes. */ | |
4824 | ||
4825 | static char *lispy_accent_keys[] = | |
4826 | { | |
4827 | "dead-circumflex", | |
4828 | "dead-grave", | |
4829 | "dead-tilde", | |
4830 | "dead-diaeresis", | |
4831 | "dead-macron", | |
4832 | "dead-degree", | |
4833 | "dead-acute", | |
4834 | "dead-cedilla", | |
4835 | "dead-breve", | |
4836 | "dead-ogonek", | |
4837 | "dead-caron", | |
4838 | "dead-doubleacute", | |
4839 | "dead-abovedot", | |
ed3230db DL |
4840 | "dead-abovering", |
4841 | "dead-iota", | |
4842 | "dead-belowdot", | |
4843 | "dead-voiced-sound", | |
4844 | "dead-semivoiced-sound", | |
4845 | "dead-hook", | |
4846 | "dead-horn", | |
e9bf89a0 RS |
4847 | }; |
4848 | ||
e98a93eb GV |
4849 | #ifdef HAVE_NTGUI |
4850 | #define FUNCTION_KEY_OFFSET 0x0 | |
4851 | ||
4852 | char *lispy_function_keys[] = | |
4853 | { | |
4854 | 0, /* 0 */ | |
c60ee5e7 | 4855 | |
e98a93eb GV |
4856 | 0, /* VK_LBUTTON 0x01 */ |
4857 | 0, /* VK_RBUTTON 0x02 */ | |
4858 | "cancel", /* VK_CANCEL 0x03 */ | |
4859 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4860 | |
e98a93eb | 4861 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4862 | |
e98a93eb GV |
4863 | "backspace", /* VK_BACK 0x08 */ |
4864 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4865 | |
e98a93eb | 4866 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4867 | |
e98a93eb GV |
4868 | "clear", /* VK_CLEAR 0x0C */ |
4869 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4870 | |
e98a93eb | 4871 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4872 | |
1161d367 GV |
4873 | 0, /* VK_SHIFT 0x10 */ |
4874 | 0, /* VK_CONTROL 0x11 */ | |
4875 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4876 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4877 | "capslock", /* VK_CAPITAL 0x14 */ |
ba991a0e JR |
4878 | "kana", /* VK_KANA/VK_HANGUL 0x15 */ |
4879 | 0, /* 0x16 */ | |
4880 | "junja", /* VK_JUNJA 0x17 */ | |
4881 | "final", /* VK_FINAL 0x18 */ | |
4882 | "kanji", /* VK_KANJI/VK_HANJA 0x19 */ | |
4883 | 0, /* 0x1A */ | |
1161d367 | 4884 | "escape", /* VK_ESCAPE 0x1B */ |
ba991a0e JR |
4885 | "convert", /* VK_CONVERT 0x1C */ |
4886 | "non-convert", /* VK_NONCONVERT 0x1D */ | |
4887 | "accept", /* VK_ACCEPT 0x1E */ | |
4888 | "mode-change", /* VK_MODECHANGE 0x1F */ | |
e98a93eb GV |
4889 | 0, /* VK_SPACE 0x20 */ |
4890 | "prior", /* VK_PRIOR 0x21 */ | |
4891 | "next", /* VK_NEXT 0x22 */ | |
4892 | "end", /* VK_END 0x23 */ | |
4893 | "home", /* VK_HOME 0x24 */ | |
4894 | "left", /* VK_LEFT 0x25 */ | |
4895 | "up", /* VK_UP 0x26 */ | |
4896 | "right", /* VK_RIGHT 0x27 */ | |
4897 | "down", /* VK_DOWN 0x28 */ | |
4898 | "select", /* VK_SELECT 0x29 */ | |
4899 | "print", /* VK_PRINT 0x2A */ | |
4900 | "execute", /* VK_EXECUTE 0x2B */ | |
4901 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4902 | "insert", /* VK_INSERT 0x2D */ | |
4903 | "delete", /* VK_DELETE 0x2E */ | |
4904 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4905 | |
e98a93eb | 4906 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4907 | |
e98a93eb | 4908 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4909 | |
e98a93eb | 4910 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4911 | |
e98a93eb | 4912 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4913 | |
4914 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4915 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4916 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4917 | |
e376f90d RS |
4918 | "lwindow", /* VK_LWIN 0x5B */ |
4919 | "rwindow", /* VK_RWIN 0x5C */ | |
4920 | "apps", /* VK_APPS 0x5D */ | |
ba991a0e JR |
4921 | 0, /* 0x5E */ |
4922 | "sleep", | |
e98a93eb GV |
4923 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4924 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4925 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4926 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4927 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4928 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4929 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4930 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4931 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4932 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4933 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4934 | "kp-add", /* VK_ADD 0x6B */ | |
4935 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4936 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4937 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4938 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4939 | "f1", /* VK_F1 0x70 */ | |
4940 | "f2", /* VK_F2 0x71 */ | |
4941 | "f3", /* VK_F3 0x72 */ | |
4942 | "f4", /* VK_F4 0x73 */ | |
4943 | "f5", /* VK_F5 0x74 */ | |
4944 | "f6", /* VK_F6 0x75 */ | |
4945 | "f7", /* VK_F7 0x76 */ | |
4946 | "f8", /* VK_F8 0x77 */ | |
4947 | "f9", /* VK_F9 0x78 */ | |
4948 | "f10", /* VK_F10 0x79 */ | |
4949 | "f11", /* VK_F11 0x7A */ | |
4950 | "f12", /* VK_F12 0x7B */ | |
4951 | "f13", /* VK_F13 0x7C */ | |
4952 | "f14", /* VK_F14 0x7D */ | |
4953 | "f15", /* VK_F15 0x7E */ | |
4954 | "f16", /* VK_F16 0x7F */ | |
4955 | "f17", /* VK_F17 0x80 */ | |
4956 | "f18", /* VK_F18 0x81 */ | |
4957 | "f19", /* VK_F19 0x82 */ | |
4958 | "f20", /* VK_F20 0x83 */ | |
4959 | "f21", /* VK_F21 0x84 */ | |
4960 | "f22", /* VK_F22 0x85 */ | |
4961 | "f23", /* VK_F23 0x86 */ | |
4962 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4963 | |
e98a93eb GV |
4964 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4965 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4966 | |
e98a93eb GV |
4967 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4968 | "scroll", /* VK_SCROLL 0x91 */ | |
ba991a0e JR |
4969 | /* Not sure where the following block comes from. |
4970 | Windows headers have NEC and Fujitsu specific keys in | |
4971 | this block, but nothing generic. */ | |
e376f90d RS |
4972 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4973 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4974 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4975 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4976 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4977 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4978 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4979 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4980 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4981 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4982 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4983 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4984 | ||
4985 | 0, 0, /* 0x9E .. 0x9F */ | |
4986 | ||
e98a93eb GV |
4987 | /* |
4988 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4989 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb | 4990 | * No other API or message will distinguish left and right keys this way. |
ba991a0e | 4991 | * 0xA0 .. 0xA5 |
e98a93eb | 4992 | */ |
ba991a0e | 4993 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4994 | |
ba991a0e JR |
4995 | /* Multimedia keys. These are handled as WM_APPCOMMAND, which allows us |
4996 | to enable them selectively, and gives access to a few more functions. | |
4997 | See lispy_multimedia_keys below. */ | |
4998 | 0, 0, 0, 0, 0, 0, 0, /* 0xA6 .. 0xAC Browser */ | |
4999 | 0, 0, 0, /* 0xAD .. 0xAF Volume */ | |
5000 | 0, 0, 0, 0, /* 0xB0 .. 0xB3 Media */ | |
5001 | 0, 0, 0, 0, /* 0xB4 .. 0xB7 Apps */ | |
c60ee5e7 | 5002 | |
ba991a0e JR |
5003 | /* 0xB8 .. 0xC0 "OEM" keys - all seem to be punctuation. */ |
5004 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 5005 | |
ba991a0e JR |
5006 | /* 0xC1 - 0xDA unallocated, 0xDB-0xDF more OEM keys */ |
5007 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
5008 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 5009 | |
ba991a0e JR |
5010 | 0, /* 0xE0 */ |
5011 | "ax", /* VK_OEM_AX 0xE1 */ | |
5012 | 0, /* VK_OEM_102 0xE2 */ | |
5013 | "ico-help", /* VK_ICO_HELP 0xE3 */ | |
5014 | "ico-00", /* VK_ICO_00 0xE4 */ | |
5015 | 0, /* VK_PROCESSKEY 0xE5 */ | |
5016 | "ico-clear", /* VK_ICO_CLEAR 0xE6 */ | |
5017 | "packet", /* VK_PACKET 0xE7 */ | |
5018 | 0, /* 0xE8 */ | |
5019 | "reset", /* VK_OEM_RESET 0xE9 */ | |
5020 | "jump", /* VK_OEM_JUMP 0xEA */ | |
5021 | "oem-pa1", /* VK_OEM_PA1 0xEB */ | |
5022 | "oem-pa2", /* VK_OEM_PA2 0xEC */ | |
5023 | "oem-pa3", /* VK_OEM_PA3 0xED */ | |
5024 | "wsctrl", /* VK_OEM_WSCTRL 0xEE */ | |
5025 | "cusel", /* VK_OEM_CUSEL 0xEF */ | |
5026 | "oem-attn", /* VK_OEM_ATTN 0xF0 */ | |
5027 | "finish", /* VK_OEM_FINISH 0xF1 */ | |
5028 | "copy", /* VK_OEM_COPY 0xF2 */ | |
5029 | "auto", /* VK_OEM_AUTO 0xF3 */ | |
5030 | "enlw", /* VK_OEM_ENLW 0xF4 */ | |
5031 | "backtab", /* VK_OEM_BACKTAB 0xF5 */ | |
e98a93eb GV |
5032 | "attn", /* VK_ATTN 0xF6 */ |
5033 | "crsel", /* VK_CRSEL 0xF7 */ | |
5034 | "exsel", /* VK_EXSEL 0xF8 */ | |
5035 | "ereof", /* VK_EREOF 0xF9 */ | |
5036 | "play", /* VK_PLAY 0xFA */ | |
5037 | "zoom", /* VK_ZOOM 0xFB */ | |
5038 | "noname", /* VK_NONAME 0xFC */ | |
5039 | "pa1", /* VK_PA1 0xFD */ | |
5040 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 5041 | 0 /* 0xFF */ |
e98a93eb GV |
5042 | }; |
5043 | ||
ba991a0e JR |
5044 | /* Some of these duplicate the "Media keys" on newer keyboards, |
5045 | but they are delivered to the application in a different way. */ | |
5046 | static char *lispy_multimedia_keys[] = | |
5047 | { | |
5048 | 0, | |
5049 | "browser-back", | |
5050 | "browser-forward", | |
5051 | "browser-refresh", | |
5052 | "browser-stop", | |
5053 | "browser-search", | |
5054 | "browser-favorites", | |
5055 | "browser-home", | |
5056 | "volume-mute", | |
5057 | "volume-down", | |
5058 | "volume-up", | |
5059 | "media-next", | |
5060 | "media-previous", | |
5061 | "media-stop", | |
5062 | "media-play-pause", | |
5063 | "mail", | |
5064 | "media-select", | |
5065 | "app-1", | |
5066 | "app-2", | |
5067 | "bass-down", | |
5068 | "bass-boost", | |
5069 | "bass-up", | |
5070 | "treble-down", | |
5071 | "treble-up", | |
5072 | "mic-volume-mute", | |
5073 | "mic-volume-down", | |
5074 | "mic-volume-up", | |
5075 | "help", | |
5076 | "find", | |
5077 | "new", | |
5078 | "open", | |
5079 | "close", | |
5080 | "save", | |
5081 | "print", | |
5082 | "undo", | |
5083 | "redo", | |
5084 | "copy", | |
5085 | "cut", | |
5086 | "paste", | |
5087 | "mail-reply", | |
5088 | "mail-forward", | |
5089 | "mail-send", | |
5090 | "spell-check", | |
5091 | "toggle-dictate-command", | |
5092 | "mic-toggle", | |
5093 | "correction-list", | |
5094 | "media-play", | |
5095 | "media-pause", | |
5096 | "media-record", | |
5097 | "media-fast-forward", | |
5098 | "media-rewind", | |
5099 | "media-channel-up", | |
5100 | "media-channel-down" | |
5101 | }; | |
5102 | ||
04f215f0 | 5103 | #else /* not HAVE_NTGUI */ |
e98a93eb | 5104 | |
ed3230db DL |
5105 | /* This should be dealt with in XTread_socket now, and that doesn't |
5106 | depend on the client system having the Kana syms defined. See also | |
5107 | the XK_kana_A case below. */ | |
5108 | #if 0 | |
37cd9f30 KH |
5109 | #ifdef XK_kana_A |
5110 | static char *lispy_kana_keys[] = | |
5111 | { | |
5112 | /* X Keysym value */ | |
5113 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
5114 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
5115 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
5116 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
5117 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
5118 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
5119 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
5120 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
5121 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
5122 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 5123 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
5124 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
5125 | "kana-i", "kana-u", "kana-e", "kana-o", | |
5126 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
5127 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
5128 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
5129 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
5130 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
5131 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
5132 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
5133 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
5134 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
5135 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
5136 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
5137 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
5138 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
5139 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
5140 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
5141 | }; | |
5142 | #endif /* XK_kana_A */ | |
ed3230db | 5143 | #endif /* 0 */ |
37cd9f30 | 5144 | |
04f215f0 RS |
5145 | #define FUNCTION_KEY_OFFSET 0xff00 |
5146 | ||
284f4730 JB |
5147 | /* You'll notice that this table is arranged to be conveniently |
5148 | indexed by X Windows keysym values. */ | |
5149 | static char *lispy_function_keys[] = | |
5150 | { | |
5151 | /* X Keysym value */ | |
5152 | ||
75045dcb RS |
5153 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
5154 | "backspace", "tab", "linefeed", "clear", | |
5155 | 0, "return", 0, 0, | |
5156 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
5157 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 5158 | 0, 0, 0, 0, |
75045dcb RS |
5159 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
5160 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
5161 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
5162 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
5163 | "eisu-toggle", /* 0xff30...3f */ | |
5164 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
5165 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
5166 | ||
75045dcb RS |
5167 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
5168 | "down", "prior", "next", "end", | |
5169 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5170 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
5171 | "print", | |
5172 | "execute", | |
5173 | "insert", | |
5174 | 0, /* 0xff64 */ | |
5175 | "undo", | |
5176 | "redo", | |
5177 | "menu", | |
5178 | "find", | |
5179 | "cancel", | |
5180 | "help", | |
5181 | "break", /* 0xff6b */ | |
5182 | ||
75045dcb RS |
5183 | 0, 0, 0, 0, |
5184 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
5185 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
5186 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
5187 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5188 | "kp-tab", /* 0xff89 */ | |
5189 | 0, 0, 0, | |
5190 | "kp-enter", /* 0xff8d */ | |
5191 | 0, 0, 0, | |
5192 | "kp-f1", /* 0xff91 */ | |
5193 | "kp-f2", | |
5194 | "kp-f3", | |
5195 | "kp-f4", | |
872157e7 RS |
5196 | "kp-home", /* 0xff95 */ |
5197 | "kp-left", | |
5198 | "kp-up", | |
5199 | "kp-right", | |
5200 | "kp-down", | |
5201 | "kp-prior", /* kp-page-up */ | |
5202 | "kp-next", /* kp-page-down */ | |
5203 | "kp-end", | |
5204 | "kp-begin", | |
5205 | "kp-insert", | |
5206 | "kp-delete", | |
5207 | 0, /* 0xffa0 */ | |
5208 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
5209 | "kp-multiply", /* 0xffaa */ |
5210 | "kp-add", | |
5211 | "kp-separator", | |
5212 | "kp-subtract", | |
5213 | "kp-decimal", | |
5214 | "kp-divide", /* 0xffaf */ | |
5215 | "kp-0", /* 0xffb0 */ | |
5216 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
5217 | 0, /* 0xffba */ | |
5218 | 0, 0, | |
5219 | "kp-equal", /* 0xffbd */ | |
5220 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
5221 | "f2", |
5222 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
5223 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
5224 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
5225 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
5226 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
5227 | 0, 0, 0, 0, 0, 0, 0, 0, | |
5228 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
5229 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 5230 | }; |
284f4730 | 5231 | |
04f215f0 RS |
5232 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
5233 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
5234 | ||
5235 | static char *iso_lispy_function_keys[] = | |
5236 | { | |
5237 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
5238 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
5239 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
5240 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
5241 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
5242 | "iso-move-line-up", "iso-move-line-down", |
5243 | "iso-partial-line-up", "iso-partial-line-down", | |
5244 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
5245 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
5246 | "iso-release-margin-left", "iso-release-margin-right", | |
5247 | "iso-release-both-margins", | |
5248 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
5249 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
5250 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
5251 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
5252 | }; | |
5253 | ||
5254 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 5255 | |
8e1e4240 | 5256 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 5257 | |
8006e4bb JR |
5258 | static char *lispy_wheel_names[] = |
5259 | { | |
13899bc1 | 5260 | "wheel-up", "wheel-down", "wheel-left", "wheel-right" |
8006e4bb JR |
5261 | }; |
5262 | ||
a24dc617 RS |
5263 | /* drag-n-drop events are generated when a set of selected files are |
5264 | dragged from another application and dropped onto an Emacs window. */ | |
5265 | static char *lispy_drag_n_drop_names[] = | |
5266 | { | |
5267 | "drag-n-drop" | |
5268 | }; | |
5269 | ||
3c370943 | 5270 | /* Scroll bar parts. */ |
4bb994d1 | 5271 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 5272 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 5273 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 5274 | |
3c370943 JB |
5275 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
5276 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 5277 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 5278 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
5279 | }; |
5280 | ||
7b4aedb9 | 5281 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 5282 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
5283 | |
5284 | The elements have the form | |
5285 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
5286 | where REST is the cdr of a position as it would be reported in the event. | |
5287 | ||
5288 | The make_lispy_event function stores positions here to tell the | |
5289 | difference between click and drag events, and to store the starting | |
5290 | location to be included in drag events. */ | |
5291 | ||
5292 | static Lisp_Object button_down_location; | |
88cb0656 | 5293 | |
fbcd35bd JB |
5294 | /* Information about the most recent up-going button event: Which |
5295 | button, what location, and what time. */ | |
5296 | ||
559f9d04 RS |
5297 | static int last_mouse_button; |
5298 | static int last_mouse_x; | |
5299 | static int last_mouse_y; | |
5300 | static unsigned long button_down_time; | |
fbcd35bd | 5301 | |
222d557c GM |
5302 | /* The maximum time between clicks to make a double-click, or Qnil to |
5303 | disable double-click detection, or Qt for no time limit. */ | |
5304 | ||
564dc952 | 5305 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 5306 | |
222d557c GM |
5307 | /* Maximum number of pixels the mouse may be moved between clicks |
5308 | to make a double-click. */ | |
5309 | ||
31ade731 | 5310 | EMACS_INT double_click_fuzz; |
222d557c | 5311 | |
fbcd35bd JB |
5312 | /* The number of clicks in this multiple-click. */ |
5313 | ||
5314 | int double_click_count; | |
5315 | ||
6b61353c KH |
5316 | /* Return position of a mouse click or wheel event */ |
5317 | ||
5318 | static Lisp_Object | |
5319 | make_lispy_position (f, x, y, time) | |
5320 | struct frame *f; | |
5321 | Lisp_Object *x, *y; | |
5322 | unsigned long time; | |
5323 | { | |
5324 | Lisp_Object window; | |
5325 | enum window_part part; | |
5326 | Lisp_Object posn = Qnil; | |
5327 | Lisp_Object extra_info = Qnil; | |
5328 | int wx, wy; | |
5329 | ||
5330 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
5331 | if (f) | |
5332 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
5333 | &part, &wx, &wy, 0); | |
5334 | else | |
5335 | window = Qnil; | |
5336 | ||
5337 | if (WINDOWP (window)) | |
5338 | { | |
5339 | /* It's a click in window window at frame coordinates (x,y) */ | |
5340 | struct window *w = XWINDOW (window); | |
5341 | Lisp_Object string_info = Qnil; | |
5342 | int textpos = -1, rx = -1, ry = -1; | |
5343 | int dx = -1, dy = -1; | |
5344 | int width = -1, height = -1; | |
5345 | Lisp_Object object = Qnil; | |
5346 | ||
5347 | /* Set event coordinates to window-relative coordinates | |
5348 | for constructing the Lisp event below. */ | |
5349 | XSETINT (*x, wx); | |
5350 | XSETINT (*y, wy); | |
5351 | ||
6507c4c7 KS |
5352 | if (part == ON_TEXT) |
5353 | { | |
5354 | wx += WINDOW_LEFT_MARGIN_WIDTH (w); | |
5355 | } | |
5356 | else if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
6b61353c KH |
5357 | { |
5358 | /* Mode line or header line. Look for a string under | |
5359 | the mouse that may have a `local-map' property. */ | |
5360 | Lisp_Object string; | |
5361 | int charpos; | |
5362 | ||
5363 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5364 | rx = wx, ry = wy; | |
5365 | string = mode_line_string (w, part, &rx, &ry, &charpos, | |
5366 | &object, &dx, &dy, &width, &height); | |
5367 | if (STRINGP (string)) | |
5368 | string_info = Fcons (string, make_number (charpos)); | |
5369 | if (w == XWINDOW (selected_window)) | |
5370 | textpos = PT; | |
5371 | else | |
5372 | textpos = XMARKER (w->pointm)->charpos; | |
5373 | } | |
5374 | else if (part == ON_VERTICAL_BORDER) | |
5375 | { | |
5376 | posn = Qvertical_line; | |
5377 | wx = -1; | |
5378 | dx = 0; | |
5379 | width = 1; | |
5380 | } | |
5381 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5382 | { | |
5383 | Lisp_Object string; | |
5384 | int charpos; | |
5385 | ||
5386 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
5387 | rx = wx, ry = wy; | |
5388 | string = marginal_area_string (w, part, &rx, &ry, &charpos, | |
5389 | &object, &dx, &dy, &width, &height); | |
5390 | if (STRINGP (string)) | |
5391 | string_info = Fcons (string, make_number (charpos)); | |
a65fc2c3 KS |
5392 | if (part == ON_LEFT_MARGIN) |
5393 | wx = 0; | |
5394 | else | |
5395 | wx = window_box_right_offset (w, TEXT_AREA) - 1; | |
6b61353c | 5396 | } |
a65fc2c3 | 5397 | else if (part == ON_LEFT_FRINGE) |
6b61353c | 5398 | { |
a65fc2c3 | 5399 | posn = Qleft_fringe; |
6b61353c KH |
5400 | rx = 0; |
5401 | dx = wx; | |
a65fc2c3 KS |
5402 | wx = (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) |
5403 | ? 0 | |
5404 | : window_box_width (w, LEFT_MARGIN_AREA)); | |
5405 | dx -= wx; | |
3d566707 | 5406 | } |
a65fc2c3 | 5407 | else if (part == ON_RIGHT_FRINGE) |
3d566707 | 5408 | { |
a65fc2c3 | 5409 | posn = Qright_fringe; |
3d566707 | 5410 | rx = 0; |
45de137a | 5411 | dx = wx; |
a65fc2c3 KS |
5412 | wx = (window_box_width (w, LEFT_MARGIN_AREA) |
5413 | + window_box_width (w, TEXT_AREA) | |
5414 | + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5415 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5416 | : 0)); | |
5417 | dx -= wx; | |
5418 | } | |
5419 | else | |
5420 | { | |
5421 | /* Note: We have no special posn for part == ON_SCROLL_BAR. */ | |
5422 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); | |
6b61353c KH |
5423 | } |
5424 | ||
5425 | if (textpos < 0) | |
5426 | { | |
5427 | Lisp_Object string2, object2 = Qnil; | |
5428 | struct display_pos p; | |
5429 | int dx2, dy2; | |
5430 | int width2, height2; | |
6b61353c KH |
5431 | string2 = buffer_posn_from_coords (w, &wx, &wy, &p, |
5432 | &object2, &dx2, &dy2, | |
5433 | &width2, &height2); | |
5434 | textpos = CHARPOS (p.pos); | |
5435 | if (rx < 0) rx = wx; | |
5436 | if (ry < 0) ry = wy; | |
5437 | if (dx < 0) dx = dx2; | |
5438 | if (dy < 0) dy = dy2; | |
5439 | if (width < 0) width = width2; | |
5440 | if (height < 0) height = height2; | |
5441 | ||
5442 | if (NILP (posn)) | |
5443 | { | |
5444 | posn = make_number (textpos); | |
5445 | if (STRINGP (string2)) | |
5446 | string_info = Fcons (string2, | |
5447 | make_number (CHARPOS (p.string_pos))); | |
5448 | } | |
5449 | if (NILP (object)) | |
5450 | object = object2; | |
5451 | } | |
5452 | ||
5453 | #ifdef HAVE_WINDOW_SYSTEM | |
5454 | if (IMAGEP (object)) | |
5455 | { | |
5456 | Lisp_Object image_map, hotspot; | |
5457 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5458 | !NILP (image_map)) | |
5459 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5460 | CONSP (hotspot)) | |
5461 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5462 | posn = XCAR (hotspot); | |
5463 | } | |
5464 | #endif | |
5465 | ||
5466 | /* Object info */ | |
5467 | extra_info = Fcons (object, | |
5468 | Fcons (Fcons (make_number (dx), | |
5469 | make_number (dy)), | |
5470 | Fcons (Fcons (make_number (width), | |
5471 | make_number (height)), | |
5472 | Qnil))); | |
5473 | ||
5474 | /* String info */ | |
5475 | extra_info = Fcons (string_info, | |
5476 | Fcons (make_number (textpos), | |
5477 | Fcons (Fcons (make_number (rx), | |
5478 | make_number (ry)), | |
5479 | extra_info))); | |
5480 | } | |
5481 | else if (f != 0) | |
5482 | { | |
5483 | XSETFRAME (window, f); | |
5484 | } | |
5485 | else | |
5486 | { | |
5487 | window = Qnil; | |
5488 | XSETFASTINT (*x, 0); | |
5489 | XSETFASTINT (*y, 0); | |
5490 | } | |
5491 | ||
5492 | return Fcons (window, | |
5493 | Fcons (posn, | |
5494 | Fcons (Fcons (*x, *y), | |
5495 | Fcons (make_number (time), | |
5496 | extra_info)))); | |
5497 | } | |
5498 | ||
284f4730 JB |
5499 | /* Given a struct input_event, build the lisp event which represents |
5500 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5501 | movement buffer, which should have a movement event in it. |
5502 | ||
5503 | Note that events must be passed to this function in the order they | |
5504 | are received; this function stores the location of button presses | |
5505 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5506 | |
5507 | static Lisp_Object | |
5508 | make_lispy_event (event) | |
5509 | struct input_event *event; | |
5510 | { | |
79a7046c RS |
5511 | int i; |
5512 | ||
0220c518 | 5513 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5514 | { |
284f4730 | 5515 | /* A simple keystroke. */ |
3b8f9651 | 5516 | case ASCII_KEYSTROKE_EVENT: |
3b8f9651 | 5517 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5518 | { |
5519 | Lisp_Object lispy_c; | |
24d80a06 | 5520 | int c = event->code; |
6d0867e5 SM |
5521 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
5522 | { | |
5523 | c &= 0377; | |
5524 | eassert (c == event->code); | |
5525 | /* Turn ASCII characters into control characters | |
5526 | when proper. */ | |
5527 | if (event->modifiers & ctrl_modifier) | |
5528 | { | |
5529 | c = make_ctrl_char (c); | |
5530 | event->modifiers &= ~ctrl_modifier; | |
5531 | } | |
5532 | } | |
a50e723f | 5533 | |
6d0867e5 SM |
5534 | /* Add in the other modifier bits. The shift key was taken care |
5535 | of by the X code. */ | |
24d80a06 SM |
5536 | c |= (event->modifiers |
5537 | & (meta_modifier | alt_modifier | |
5538 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
6d0867e5 SM |
5539 | /* Distinguish Shift-SPC from SPC. */ |
5540 | if ((event->code) == 040 | |
5541 | && event->modifiers & shift_modifier) | |
5542 | c |= shift_modifier; | |
24d80a06 SM |
5543 | button_down_time = 0; |
5544 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5545 | return lispy_c; |
5546 | } | |
5547 | ||
284f4730 JB |
5548 | /* A function key. The symbol may need to have modifier prefixes |
5549 | tacked onto it. */ | |
3b8f9651 | 5550 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5551 | button_down_time = 0; |
e9bf89a0 RS |
5552 | |
5553 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5554 | if (event->code == lispy_accent_codes[i]) | |
5555 | return modify_event_symbol (i, | |
5556 | event->modifiers, | |
80e4aa30 | 5557 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5558 | lispy_accent_keys, &accent_key_syms, |
5559 | (sizeof (lispy_accent_keys) | |
5560 | / sizeof (lispy_accent_keys[0]))); | |
5561 | ||
ed3230db | 5562 | #if 0 |
37cd9f30 KH |
5563 | #ifdef XK_kana_A |
5564 | if (event->code >= 0x400 && event->code < 0x500) | |
5565 | return modify_event_symbol (event->code - 0x400, | |
5566 | event->modifiers & ~shift_modifier, | |
5567 | Qfunction_key, Qnil, | |
5568 | lispy_kana_keys, &func_key_syms, | |
5569 | (sizeof (lispy_kana_keys) | |
5570 | / sizeof (lispy_kana_keys[0]))); | |
5571 | #endif /* XK_kana_A */ | |
ed3230db | 5572 | #endif /* 0 */ |
37cd9f30 | 5573 | |
111c4138 | 5574 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5575 | if (event->code < FUNCTION_KEY_OFFSET |
5576 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5577 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5578 | event->modifiers, | |
5579 | Qfunction_key, Qnil, | |
5580 | iso_lispy_function_keys, &func_key_syms, | |
5581 | (sizeof (iso_lispy_function_keys) | |
5582 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5583 | #endif |
656280a6 | 5584 | |
4c8bc894 SM |
5585 | /* Handle system-specific or unknown keysyms. */ |
5586 | if (event->code & (1 << 28) | |
5587 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5588 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5589 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5590 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5591 | { |
4c8bc894 SM |
5592 | /* We need to use an alist rather than a vector as the cache |
5593 | since we can't make a vector long enuf. */ | |
5594 | if (NILP (current_kboard->system_key_syms)) | |
5595 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5596 | return modify_event_symbol (event->code, | |
5597 | event->modifiers, | |
5598 | Qfunction_key, | |
5599 | current_kboard->Vsystem_key_alist, | |
5600 | 0, ¤t_kboard->system_key_syms, | |
5601 | (unsigned) -1); | |
656280a6 | 5602 | } |
656280a6 GM |
5603 | |
5604 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5605 | event->modifiers, | |
5606 | Qfunction_key, Qnil, | |
5607 | lispy_function_keys, &func_key_syms, | |
5608 | (sizeof (lispy_function_keys) | |
5609 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5610 | |
ba991a0e JR |
5611 | #ifdef WINDOWSNT |
5612 | case MULTIMEDIA_KEY_EVENT: | |
5613 | if (event->code < (sizeof (lispy_multimedia_keys) | |
5614 | / sizeof (lispy_multimedia_keys[0])) | |
5615 | && event->code > 0 && lispy_multimedia_keys[event->code]) | |
5616 | { | |
5617 | return modify_event_symbol (event->code, event->modifiers, | |
5618 | Qfunction_key, Qnil, | |
5619 | lispy_multimedia_keys, &func_key_syms, | |
5620 | (sizeof (lispy_multimedia_keys) | |
5621 | / sizeof (lispy_multimedia_keys[0]))); | |
5622 | } | |
5623 | return Qnil; | |
5624 | #endif | |
5625 | ||
514354e9 | 5626 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5627 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5628 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5629 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5630 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5631 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5632 | #endif |
284f4730 | 5633 | { |
e9bf89a0 | 5634 | int button = event->code; |
559f9d04 | 5635 | int is_double; |
7b4aedb9 | 5636 | Lisp_Object position; |
dbc4e1c1 JB |
5637 | Lisp_Object *start_pos_ptr; |
5638 | Lisp_Object start_pos; | |
284f4730 | 5639 | |
8c907a56 GM |
5640 | position = Qnil; |
5641 | ||
7b4aedb9 | 5642 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5643 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5644 | { |
c5cf2109 | 5645 | struct frame *f = XFRAME (event->frame_or_window); |
6b61353c | 5646 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
9e20143a | 5647 | int row, column; |
6b61353c | 5648 | #endif |
9e20143a | 5649 | |
5da3133a RS |
5650 | /* Ignore mouse events that were made on frame that |
5651 | have been deleted. */ | |
5652 | if (! FRAME_LIVE_P (f)) | |
5653 | return Qnil; | |
5654 | ||
6b61353c | 5655 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
7ee32cda GM |
5656 | /* EVENT->x and EVENT->y are frame-relative pixel |
5657 | coordinates at this place. Under old redisplay, COLUMN | |
5658 | and ROW are set to frame relative glyph coordinates | |
5659 | which are then used to determine whether this click is | |
5660 | in a menu (non-toolkit version). */ | |
5661 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5662 | &column, &row, NULL, 1); | |
7b4aedb9 | 5663 | |
eef045bf RS |
5664 | /* In the non-toolkit version, clicks on the menu bar |
5665 | are ordinary button events in the event buffer. | |
5666 | Distinguish them, and invoke the menu. | |
5667 | ||
5668 | (In the toolkit version, the toolkit handles the menu bar | |
5669 | and Emacs doesn't know about it until after the user | |
5670 | makes a selection.) */ | |
2ee250ec RS |
5671 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5672 | && (event->modifiers & down_modifier)) | |
bb936752 | 5673 | { |
b7c49376 | 5674 | Lisp_Object items, item; |
0a0e8fe6 RS |
5675 | int hpos; |
5676 | int i; | |
5677 | ||
2ee250ec | 5678 | #if 0 |
0a0e8fe6 RS |
5679 | /* Activate the menu bar on the down event. If the |
5680 | up event comes in before the menu code can deal with it, | |
5681 | just ignore it. */ | |
5682 | if (! (event->modifiers & down_modifier)) | |
5683 | return Qnil; | |
2ee250ec | 5684 | #endif |
0aafc975 | 5685 | |
7ee32cda | 5686 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5687 | item = Qnil; |
5ec75a55 | 5688 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5689 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5690 | { |
5691 | Lisp_Object pos, string; | |
129004d3 GM |
5692 | string = AREF (items, i + 1); |
5693 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5694 | if (NILP (string)) |
5695 | break; | |
9e20143a | 5696 | if (column >= XINT (pos) |
d5db4077 | 5697 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5698 | { |
129004d3 | 5699 | item = AREF (items, i); |
b7c49376 RS |
5700 | break; |
5701 | } | |
5ec75a55 | 5702 | } |
9e20143a | 5703 | |
7ee32cda GM |
5704 | /* ELisp manual 2.4b says (x y) are window relative but |
5705 | code says they are frame-relative. */ | |
5ec75a55 RS |
5706 | position |
5707 | = Fcons (event->frame_or_window, | |
5708 | Fcons (Qmenu_bar, | |
5709 | Fcons (Fcons (event->x, event->y), | |
5710 | Fcons (make_number (event->timestamp), | |
5711 | Qnil)))); | |
5712 | ||
b7c49376 | 5713 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5714 | } |
488dd4c4 | 5715 | #endif /* not USE_X_TOOLKIT && not USE_GTK */ |
0aafc975 | 5716 | |
6b61353c KH |
5717 | position = make_lispy_position (f, &event->x, &event->y, |
5718 | event->timestamp); | |
284f4730 | 5719 | } |
7ee32cda | 5720 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5721 | else |
88cb0656 | 5722 | { |
7ee32cda | 5723 | /* It's a scrollbar click. */ |
6b61353c | 5724 | Lisp_Object window; |
9e20143a RS |
5725 | Lisp_Object portion_whole; |
5726 | Lisp_Object part; | |
5727 | ||
5728 | window = event->frame_or_window; | |
5729 | portion_whole = Fcons (event->x, event->y); | |
5730 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5731 | |
db08707d RS |
5732 | position |
5733 | = Fcons (window, | |
5734 | Fcons (Qvertical_scroll_bar, | |
5735 | Fcons (portion_whole, | |
5736 | Fcons (make_number (event->timestamp), | |
5737 | Fcons (part, Qnil))))); | |
88cb0656 | 5738 | } |
7ee32cda | 5739 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5740 | |
129004d3 | 5741 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5742 | { |
5743 | button_down_location = larger_vector (button_down_location, | |
5744 | button + 1, Qnil); | |
5745 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5746 | } | |
c60ee5e7 | 5747 | |
129004d3 | 5748 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5749 | start_pos = *start_pos_ptr; |
5750 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5751 | |
c5cf2109 GM |
5752 | { |
5753 | /* On window-system frames, use the value of | |
5754 | double-click-fuzz as is. On other frames, interpret it | |
5755 | as a multiple of 1/8 characters. */ | |
5756 | struct frame *f; | |
5757 | int fuzz; | |
5758 | ||
5759 | if (WINDOWP (event->frame_or_window)) | |
5760 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5761 | else if (FRAMEP (event->frame_or_window)) | |
5762 | f = XFRAME (event->frame_or_window); | |
5763 | else | |
5764 | abort (); | |
5765 | ||
5766 | if (FRAME_WINDOW_P (f)) | |
5767 | fuzz = double_click_fuzz; | |
5768 | else | |
5769 | fuzz = double_click_fuzz / 8; | |
5770 | ||
5771 | is_double = (button == last_mouse_button | |
1ea40aa2 EZ |
5772 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5773 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
c5cf2109 GM |
5774 | && button_down_time != 0 |
5775 | && (EQ (Vdouble_click_time, Qt) | |
5776 | || (INTEGERP (Vdouble_click_time) | |
5777 | && ((int)(event->timestamp - button_down_time) | |
5778 | < XINT (Vdouble_click_time))))); | |
5779 | } | |
c60ee5e7 | 5780 | |
559f9d04 RS |
5781 | last_mouse_button = button; |
5782 | last_mouse_x = XINT (event->x); | |
5783 | last_mouse_y = XINT (event->y); | |
5784 | ||
7b4aedb9 JB |
5785 | /* If this is a button press, squirrel away the location, so |
5786 | we can decide later whether it was a click or a drag. */ | |
5787 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5788 | { |
5789 | if (is_double) | |
5790 | { | |
5791 | double_click_count++; | |
5792 | event->modifiers |= ((double_click_count > 2) | |
5793 | ? triple_modifier | |
5794 | : double_modifier); | |
5795 | } | |
5796 | else | |
5797 | double_click_count = 1; | |
5798 | button_down_time = event->timestamp; | |
5799 | *start_pos_ptr = Fcopy_alist (position); | |
3b0cdcef | 5800 | ignore_mouse_drag_p = 0; |
559f9d04 | 5801 | } |
7b4aedb9 | 5802 | |
88cb0656 | 5803 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5804 | see if this was a click or a drag. */ |
88cb0656 JB |
5805 | else if (event->modifiers & up_modifier) |
5806 | { | |
129004d3 GM |
5807 | /* If we did not see a down before this up, ignore the up. |
5808 | Probably this happened because the down event chose a | |
5809 | menu item. It would be an annoyance to treat the | |
5810 | release of the button that chose the menu item as a | |
5811 | separate event. */ | |
48e416d4 | 5812 | |
8c18cbfb | 5813 | if (!CONSP (start_pos)) |
48e416d4 RS |
5814 | return Qnil; |
5815 | ||
88cb0656 | 5816 | event->modifiers &= ~up_modifier; |
48e416d4 | 5817 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5818 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5819 | event->modifiers |= click_modifier; |
5820 | else | |
48e416d4 | 5821 | #endif |
dbc4e1c1 | 5822 | { |
9b8eb840 | 5823 | Lisp_Object down; |
d31053f9 | 5824 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5825 | |
d31053f9 RS |
5826 | /* The third element of every position |
5827 | should be the (x,y) pair. */ | |
5828 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5829 | if (CONSP (down) |
5830 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5831 | { |
4156359e SM |
5832 | xdiff = XINT (event->x) - XINT (XCAR (down)); |
5833 | ydiff = XINT (event->y) - XINT (XCDR (down)); | |
d31053f9 RS |
5834 | } |
5835 | ||
3b0cdcef KS |
5836 | if (ignore_mouse_drag_p) |
5837 | { | |
5838 | event->modifiers |= click_modifier; | |
5839 | ignore_mouse_drag_p = 0; | |
5840 | } | |
5841 | else if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5842 | && ydiff < double_click_fuzz && ydiff > - double_click_fuzz | |
4156359e SM |
5843 | /* Maybe the mouse has moved a lot, caused scrolling, and |
5844 | eventually ended up at the same screen position (but | |
5845 | not buffer position) in which case it is a drag, not | |
5846 | a click. */ | |
5847 | /* FIXME: OTOH if the buffer position has changed | |
5848 | because of a timer or process filter rather than | |
5849 | because of mouse movement, it should be considered as | |
5850 | a click. But mouse-drag-region completely ignores | |
5851 | this case and it hasn't caused any real problem, so | |
5852 | it's probably OK to ignore it as well. */ | |
5853 | && EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position)))) | |
d31053f9 | 5854 | /* Mouse hasn't moved (much). */ |
129004d3 | 5855 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5856 | else |
5857 | { | |
d31053f9 RS |
5858 | button_down_time = 0; |
5859 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5860 | } |
c60ee5e7 | 5861 | |
bc536d84 RS |
5862 | /* Don't check is_double; treat this as multiple |
5863 | if the down-event was multiple. */ | |
5864 | if (double_click_count > 1) | |
5865 | event->modifiers |= ((double_click_count > 2) | |
5866 | ? triple_modifier | |
5867 | : double_modifier); | |
dbc4e1c1 | 5868 | } |
88cb0656 JB |
5869 | } |
5870 | else | |
5871 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5872 | the up_modifier set. */ |
88cb0656 JB |
5873 | abort (); |
5874 | ||
88cb0656 | 5875 | { |
7b4aedb9 | 5876 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5877 | Lisp_Object head; |
5878 | ||
5879 | head = modify_event_symbol (button, | |
5880 | event->modifiers, | |
8e1e4240 GM |
5881 | Qmouse_click, Vlispy_mouse_stem, |
5882 | NULL, | |
5883 | &mouse_syms, | |
5884 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5885 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5886 | return Fcons (head, |
5887 | Fcons (start_pos, | |
5888 | Fcons (position, | |
5889 | Qnil))); | |
fbcd35bd JB |
5890 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5891 | return Fcons (head, | |
5892 | Fcons (position, | |
5893 | Fcons (make_number (double_click_count), | |
5894 | Qnil))); | |
88cb0656 JB |
5895 | else |
5896 | return Fcons (head, | |
7b4aedb9 | 5897 | Fcons (position, |
88cb0656 JB |
5898 | Qnil)); |
5899 | } | |
284f4730 | 5900 | } |
db08707d | 5901 | |
8006e4bb | 5902 | case WHEEL_EVENT: |
13899bc1 | 5903 | case HORIZ_WHEEL_EVENT: |
8006e4bb JR |
5904 | { |
5905 | Lisp_Object position; | |
8006e4bb | 5906 | Lisp_Object head; |
6b61353c | 5907 | |
87d386ff | 5908 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5909 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5910 | |
5911 | /* Ignore wheel events that were made on frame that have been | |
5912 | deleted. */ | |
5913 | if (! FRAME_LIVE_P (f)) | |
5914 | return Qnil; | |
5915 | ||
6b61353c KH |
5916 | position = make_lispy_position (f, &event->x, &event->y, |
5917 | event->timestamp); | |
87d386ff | 5918 | |
db9cd97a | 5919 | /* Set double or triple modifiers to indicate the wheel speed. */ |
87d386ff JR |
5920 | { |
5921 | /* On window-system frames, use the value of | |
5922 | double-click-fuzz as is. On other frames, interpret it | |
5923 | as a multiple of 1/8 characters. */ | |
5924 | struct frame *f; | |
5925 | int fuzz; | |
5926 | int is_double; | |
5927 | ||
5928 | if (WINDOWP (event->frame_or_window)) | |
5929 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5930 | else if (FRAMEP (event->frame_or_window)) | |
5931 | f = XFRAME (event->frame_or_window); | |
5932 | else | |
5933 | abort (); | |
5934 | ||
5935 | if (FRAME_WINDOW_P (f)) | |
5936 | fuzz = double_click_fuzz; | |
5937 | else | |
5938 | fuzz = double_click_fuzz / 8; | |
5939 | ||
5940 | is_double = (last_mouse_button < 0 | |
1ea40aa2 EZ |
5941 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5942 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
87d386ff JR |
5943 | && button_down_time != 0 |
5944 | && (EQ (Vdouble_click_time, Qt) | |
5945 | || (INTEGERP (Vdouble_click_time) | |
5946 | && ((int)(event->timestamp - button_down_time) | |
5947 | < XINT (Vdouble_click_time))))); | |
5948 | if (is_double) | |
5949 | { | |
5950 | double_click_count++; | |
5951 | event->modifiers |= ((double_click_count > 2) | |
5952 | ? triple_modifier | |
5953 | : double_modifier); | |
5954 | } | |
5955 | else | |
5956 | { | |
5957 | double_click_count = 1; | |
5958 | event->modifiers |= click_modifier; | |
5959 | } | |
5960 | ||
5961 | button_down_time = event->timestamp; | |
5962 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5963 | last_mouse_button = -1; | |
5964 | last_mouse_x = XINT (event->x); | |
5965 | last_mouse_y = XINT (event->y); | |
5966 | } | |
5967 | ||
5968 | { | |
5969 | int symbol_num; | |
5970 | ||
5971 | if (event->modifiers & up_modifier) | |
5972 | { | |
db9cd97a | 5973 | /* Emit a wheel-up event. */ |
87d386ff JR |
5974 | event->modifiers &= ~up_modifier; |
5975 | symbol_num = 0; | |
5976 | } | |
5977 | else if (event->modifiers & down_modifier) | |
5978 | { | |
5979 | /* Emit a wheel-down event. */ | |
5980 | event->modifiers &= ~down_modifier; | |
5981 | symbol_num = 1; | |
5982 | } | |
5983 | else | |
5984 | /* Every wheel event should either have the down_modifier or | |
5985 | the up_modifier set. */ | |
5986 | abort (); | |
5987 | ||
13899bc1 JR |
5988 | if (event->kind == HORIZ_WHEEL_EVENT) |
5989 | symbol_num += 2; | |
5990 | ||
db9cd97a | 5991 | /* Get the symbol we should use for the wheel event. */ |
87d386ff JR |
5992 | head = modify_event_symbol (symbol_num, |
5993 | event->modifiers, | |
5994 | Qmouse_click, | |
5995 | Qnil, | |
5996 | lispy_wheel_names, | |
5997 | &wheel_syms, | |
5998 | ASIZE (wheel_syms)); | |
5999 | } | |
6000 | ||
6001 | if (event->modifiers & (double_modifier | triple_modifier)) | |
6002 | return Fcons (head, | |
6003 | Fcons (position, | |
6004 | Fcons (make_number (double_click_count), | |
6005 | Qnil))); | |
6006 | else | |
6007 | return Fcons (head, | |
6008 | Fcons (position, | |
6009 | Qnil)); | |
8006e4bb JR |
6010 | } |
6011 | ||
6012 | ||
05be3964 | 6013 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
6014 | |
6015 | /* We don't have down and up events if using toolkit scroll bars, | |
6016 | so make this always a click event. Store in the `part' of | |
6017 | the Lisp event a symbol which maps to the following actions: | |
6018 | ||
6019 | `above_handle' page up | |
6020 | `below_handle' page down | |
6021 | `up' line up | |
6022 | `down' line down | |
6023 | `top' top of buffer | |
6024 | `bottom' bottom of buffer | |
6025 | `handle' thumb has been dragged. | |
6026 | `end-scroll' end of interaction with scroll bar | |
6027 | ||
6028 | The incoming input_event contains in its `part' member an | |
6029 | index of type `enum scroll_bar_part' which we can use as an | |
6030 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 6031 | |
3b8f9651 | 6032 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
6033 | { |
6034 | Lisp_Object position, head, window, portion_whole, part; | |
6035 | ||
6036 | window = event->frame_or_window; | |
6037 | portion_whole = Fcons (event->x, event->y); | |
6038 | part = *scroll_bar_parts[(int) event->part]; | |
6039 | ||
6040 | position | |
6041 | = Fcons (window, | |
6042 | Fcons (Qvertical_scroll_bar, | |
6043 | Fcons (portion_whole, | |
6044 | Fcons (make_number (event->timestamp), | |
6045 | Fcons (part, Qnil))))); | |
6046 | ||
6047 | /* Always treat scroll bar events as clicks. */ | |
6048 | event->modifiers |= click_modifier; | |
05be3964 | 6049 | event->modifiers &= ~up_modifier; |
7ee32cda | 6050 | |
257f40f2 JD |
6051 | if (event->code >= ASIZE (mouse_syms)) |
6052 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
6053 | ||
7ee32cda GM |
6054 | /* Get the symbol we should use for the mouse click. */ |
6055 | head = modify_event_symbol (event->code, | |
6056 | event->modifiers, | |
14e40288 | 6057 | Qmouse_click, |
8e1e4240 GM |
6058 | Vlispy_mouse_stem, |
6059 | NULL, &mouse_syms, | |
6060 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
6061 | return Fcons (head, Fcons (position, Qnil)); |
6062 | } | |
c60ee5e7 | 6063 | |
7ee32cda GM |
6064 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
6065 | ||
3b8f9651 | 6066 | case DRAG_N_DROP_EVENT: |
a24dc617 | 6067 | { |
a24dc617 | 6068 | FRAME_PTR f; |
6b61353c | 6069 | Lisp_Object head, position; |
a24dc617 | 6070 | Lisp_Object files; |
a24dc617 | 6071 | |
82de1de9 YM |
6072 | f = XFRAME (event->frame_or_window); |
6073 | files = event->arg; | |
a24dc617 RS |
6074 | |
6075 | /* Ignore mouse events that were made on frames that | |
6076 | have been deleted. */ | |
6077 | if (! FRAME_LIVE_P (f)) | |
6078 | return Qnil; | |
afabdbe5 | 6079 | |
6b61353c KH |
6080 | position = make_lispy_position (f, &event->x, &event->y, |
6081 | event->timestamp); | |
6082 | ||
6083 | head = modify_event_symbol (0, event->modifiers, | |
6084 | Qdrag_n_drop, Qnil, | |
6085 | lispy_drag_n_drop_names, | |
6086 | &drag_n_drop_syms, 1); | |
6087 | return Fcons (head, | |
6088 | Fcons (position, | |
6089 | Fcons (files, | |
6090 | Qnil))); | |
a24dc617 | 6091 | } |
514354e9 | 6092 | #endif /* HAVE_MOUSE */ |
284f4730 | 6093 | |
488dd4c4 JD |
6094 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
6095 | || defined (USE_GTK) | |
da8f7368 GM |
6096 | case MENU_BAR_EVENT: |
6097 | if (EQ (event->arg, event->frame_or_window)) | |
6098 | /* This is the prefix key. We translate this to | |
6099 | `(menu_bar)' because the code in keyboard.c for menu | |
6100 | events, which we use, relies on this. */ | |
6101 | return Fcons (Qmenu_bar, Qnil); | |
6102 | return event->arg; | |
2470a66f KH |
6103 | #endif |
6104 | ||
a4e19f6e SM |
6105 | case SELECT_WINDOW_EVENT: |
6106 | /* Make an event (select-window (WINDOW)). */ | |
6107 | return Fcons (Qselect_window, | |
6108 | Fcons (Fcons (event->frame_or_window, Qnil), | |
6109 | Qnil)); | |
6110 | ||
9ea173e8 | 6111 | case TOOL_BAR_EVENT: |
da8f7368 GM |
6112 | if (EQ (event->arg, event->frame_or_window)) |
6113 | /* This is the prefix key. We translate this to | |
27fd22dc | 6114 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
6115 | events, which we use, relies on this. */ |
6116 | return Fcons (Qtool_bar, Qnil); | |
6117 | else if (SYMBOLP (event->arg)) | |
6118 | return apply_modifiers (event->modifiers, event->arg); | |
6119 | return event->arg; | |
6120 | ||
6121 | case USER_SIGNAL_EVENT: | |
5bf68f6e | 6122 | /* A user signal. */ |
b809d9e7 KS |
6123 | { |
6124 | char *name = find_user_signal_name (event->code); | |
6125 | if (!name) | |
6126 | abort (); | |
6127 | return intern (name); | |
6128 | } | |
c60ee5e7 | 6129 | |
3b8f9651 | 6130 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 6131 | return Qsave_session; |
c60ee5e7 | 6132 | |
f66c49cc YM |
6133 | #ifdef MAC_OS |
6134 | case MAC_APPLE_EVENT: | |
6135 | { | |
6136 | Lisp_Object spec[2]; | |
6137 | ||
6138 | spec[0] = event->x; | |
6139 | spec[1] = event->y; | |
6140 | return Fcons (Qmac_apple_event, | |
6141 | Fcons (Fvector (2, spec), | |
2e1df0e6 | 6142 | Fcons (event->arg, Qnil))); |
f66c49cc YM |
6143 | } |
6144 | #endif | |
6145 | ||
033b73e2 MA |
6146 | #ifdef HAVE_DBUS |
6147 | case DBUS_EVENT: | |
6148 | { | |
6149 | return Fcons (Qdbus_event, event->arg); | |
6150 | } | |
6151 | #endif /* HAVE_DBUS */ | |
6152 | ||
7e5a23bd | 6153 | #ifdef HAVE_GPM |
ae372f41 NR |
6154 | case GPM_CLICK_EVENT: |
6155 | { | |
6156 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
6157 | Lisp_Object head, position; | |
6158 | Lisp_Object *start_pos_ptr; | |
6159 | Lisp_Object start_pos; | |
6160 | int button = event->code; | |
6161 | ||
6162 | if (button >= ASIZE (button_down_location)) | |
6163 | { | |
6164 | button_down_location = larger_vector (button_down_location, | |
6165 | button + 1, Qnil); | |
6166 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
6167 | } | |
6168 | ||
6169 | start_pos_ptr = &AREF (button_down_location, button); | |
6170 | start_pos = *start_pos_ptr; | |
6171 | ||
6172 | position = make_lispy_position (f, &event->x, &event->y, | |
6173 | event->timestamp); | |
6174 | ||
6175 | if (event->modifiers & down_modifier) | |
6176 | *start_pos_ptr = Fcopy_alist (position); | |
6177 | else if (event->modifiers & (up_modifier | drag_modifier)) | |
6178 | { | |
6179 | if (!CONSP (start_pos)) | |
6180 | return Qnil; | |
6181 | event->modifiers &= ~up_modifier; | |
6182 | } | |
6183 | ||
6184 | head = modify_event_symbol (button, | |
6185 | event->modifiers, | |
6186 | Qmouse_click, Vlispy_mouse_stem, | |
6187 | NULL, | |
6188 | &mouse_syms, | |
6189 | XVECTOR (mouse_syms)->size); | |
6190 | ||
6191 | if (event->modifiers & drag_modifier) | |
6192 | return Fcons (head, | |
6193 | Fcons (start_pos, | |
6194 | Fcons (position, | |
6195 | Qnil))); | |
6196 | else if (event->modifiers & double_modifier) | |
6197 | return Fcons (head, | |
6198 | Fcons (position, | |
6199 | Fcons (make_number (2), | |
6200 | Qnil))); | |
6201 | else if (event->modifiers & triple_modifier) | |
6202 | return Fcons (head, | |
6203 | Fcons (position, | |
6204 | Fcons (make_number (3), | |
6205 | Qnil))); | |
6206 | else | |
6207 | return Fcons (head, | |
6208 | Fcons (position, | |
6209 | Qnil)); | |
6210 | } | |
7e5a23bd | 6211 | #endif /* HAVE_GPM */ |
ae372f41 | 6212 | |
284f4730 JB |
6213 | /* The 'kind' field of the event is something we don't recognize. */ |
6214 | default: | |
48e416d4 | 6215 | abort (); |
284f4730 JB |
6216 | } |
6217 | } | |
6218 | ||
bdb1e01d | 6219 | #if defined(HAVE_MOUSE) || defined(HAVE_GPM) |
6cbff1cb | 6220 | |
284f4730 | 6221 | static Lisp_Object |
7b4aedb9 | 6222 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 6223 | FRAME_PTR frame; |
7b4aedb9 | 6224 | Lisp_Object bar_window; |
3c370943 | 6225 | enum scroll_bar_part part; |
284f4730 | 6226 | Lisp_Object x, y; |
e5d77022 | 6227 | unsigned long time; |
284f4730 | 6228 | { |
3c370943 | 6229 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 6230 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 6231 | { |
9b8eb840 | 6232 | Lisp_Object part_sym; |
4bb994d1 | 6233 | |
9b8eb840 | 6234 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 6235 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 6236 | (Fcons (Fcons (bar_window, |
3c370943 | 6237 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
6238 | Fcons (Fcons (x, y), |
6239 | Fcons (make_number (time), | |
cb5df6ae | 6240 | Fcons (part_sym, |
4bb994d1 JB |
6241 | Qnil))))), |
6242 | Qnil))); | |
6243 | } | |
6244 | ||
6245 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
6246 | else |
6247 | { | |
6b61353c | 6248 | Lisp_Object position; |
9e20143a | 6249 | |
6b61353c | 6250 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 6251 | |
4bb994d1 | 6252 | return Fcons (Qmouse_movement, |
6b61353c | 6253 | Fcons (position, |
4bb994d1 JB |
6254 | Qnil)); |
6255 | } | |
284f4730 JB |
6256 | } |
6257 | ||
bdb1e01d | 6258 | #endif /* HAVE_MOUSE || HAVE GPM */ |
6cbff1cb | 6259 | |
cd21b839 JB |
6260 | /* Construct a switch frame event. */ |
6261 | static Lisp_Object | |
6262 | make_lispy_switch_frame (frame) | |
6263 | Lisp_Object frame; | |
6264 | { | |
6265 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
6266 | } | |
0a7f1fc0 JB |
6267 | \f |
6268 | /* Manipulating modifiers. */ | |
284f4730 | 6269 | |
0a7f1fc0 | 6270 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 6271 | |
0a7f1fc0 JB |
6272 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
6273 | SYMBOL's name of the end of the modifiers; the string from this | |
6274 | position is the unmodified symbol name. | |
284f4730 | 6275 | |
0a7f1fc0 | 6276 | This doesn't use any caches. */ |
6da3dd3a | 6277 | |
0a7f1fc0 JB |
6278 | static int |
6279 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 6280 | Lisp_Object symbol; |
0a7f1fc0 | 6281 | int *modifier_end; |
284f4730 | 6282 | { |
1b049b51 | 6283 | Lisp_Object name; |
284f4730 JB |
6284 | int i; |
6285 | int modifiers; | |
284f4730 | 6286 | |
b7826503 | 6287 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 6288 | |
284f4730 | 6289 | modifiers = 0; |
1b049b51 | 6290 | name = SYMBOL_NAME (symbol); |
284f4730 | 6291 | |
1b049b51 | 6292 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
6293 | { |
6294 | int this_mod_end = 0; | |
6295 | int this_mod = 0; | |
284f4730 | 6296 | |
6da3dd3a RS |
6297 | /* See if the name continues with a modifier word. |
6298 | Check that the word appears, but don't check what follows it. | |
6299 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 6300 | |
1b049b51 | 6301 | switch (SREF (name, i)) |
6da3dd3a RS |
6302 | { |
6303 | #define SINGLE_LETTER_MOD(BIT) \ | |
6304 | (this_mod_end = i + 1, this_mod = BIT) | |
6305 | ||
6da3dd3a RS |
6306 | case 'A': |
6307 | SINGLE_LETTER_MOD (alt_modifier); | |
6308 | break; | |
284f4730 | 6309 | |
6da3dd3a RS |
6310 | case 'C': |
6311 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6312 | break; | |
284f4730 | 6313 | |
6da3dd3a RS |
6314 | case 'H': |
6315 | SINGLE_LETTER_MOD (hyper_modifier); | |
6316 | break; | |
6317 | ||
6da3dd3a RS |
6318 | case 'M': |
6319 | SINGLE_LETTER_MOD (meta_modifier); | |
6320 | break; | |
6321 | ||
6da3dd3a RS |
6322 | case 'S': |
6323 | SINGLE_LETTER_MOD (shift_modifier); | |
6324 | break; | |
6325 | ||
6326 | case 's': | |
6da3dd3a RS |
6327 | SINGLE_LETTER_MOD (super_modifier); |
6328 | break; | |
6329 | ||
0a7f1fc0 | 6330 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
6331 | |
6332 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
6333 | if (i + LEN + 1 <= SBYTES (name) \ | |
6334 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
6335 | { \ | |
6336 | this_mod_end = i + LEN; \ | |
6337 | this_mod = BIT; \ | |
6338 | } | |
6339 | ||
6340 | case 'd': | |
6341 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6342 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6343 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6344 | break; | |
6345 | ||
6346 | case 't': | |
6347 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6348 | break; | |
6349 | #undef MULTI_LETTER_MOD | |
6350 | ||
6da3dd3a RS |
6351 | } |
6352 | ||
6353 | /* If we found no modifier, stop looking for them. */ | |
6354 | if (this_mod_end == 0) | |
6355 | break; | |
6356 | ||
6357 | /* Check there is a dash after the modifier, so that it | |
6358 | really is a modifier. */ | |
1b049b51 KR |
6359 | if (this_mod_end >= SBYTES (name) |
6360 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
6361 | break; |
6362 | ||
6363 | /* This modifier is real; look for another. */ | |
6364 | modifiers |= this_mod; | |
6365 | i = this_mod_end + 1; | |
6366 | } | |
284f4730 | 6367 | |
0a7f1fc0 | 6368 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6369 | if (! (modifiers & (down_modifier | drag_modifier |
6370 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6371 | && i + 7 == SBYTES (name) |
6372 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6373 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6374 | modifiers |= click_modifier; |
6375 | ||
6376 | if (modifier_end) | |
6377 | *modifier_end = i; | |
6378 | ||
6379 | return modifiers; | |
6380 | } | |
6381 | ||
0a7f1fc0 JB |
6382 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6383 | prepended to the string BASE[0..BASE_LEN-1]. | |
6384 | This doesn't use any caches. */ | |
6385 | static Lisp_Object | |
301738ed | 6386 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6387 | int modifiers; |
6388 | char *base; | |
301738ed | 6389 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6390 | { |
6391 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6392 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6393 | reference to it. */ | |
301738ed RS |
6394 | char *new_mods |
6395 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6396 | int mod_len; |
284f4730 | 6397 | |
284f4730 | 6398 | { |
0a7f1fc0 JB |
6399 | char *p = new_mods; |
6400 | ||
6401 | /* Only the event queue may use the `up' modifier; it should always | |
6402 | be turned into a click or drag event before presented to lisp code. */ | |
6403 | if (modifiers & up_modifier) | |
6404 | abort (); | |
6405 | ||
6406 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6407 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6408 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6409 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6410 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6411 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6412 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6413 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6414 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6415 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6416 | /* The click modifier is denoted by the absence of other modifiers. */ |
6417 | ||
6418 | *p = '\0'; | |
6419 | ||
6420 | mod_len = p - new_mods; | |
6421 | } | |
284f4730 | 6422 | |
0a7f1fc0 | 6423 | { |
9b8eb840 | 6424 | Lisp_Object new_name; |
df0f2ba1 | 6425 | |
301738ed RS |
6426 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6427 | mod_len + base_len_byte); | |
d5db4077 KR |
6428 | bcopy (new_mods, SDATA (new_name), mod_len); |
6429 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6430 | |
6431 | return Fintern (new_name, Qnil); | |
6432 | } | |
6433 | } | |
6434 | ||
6435 | ||
0a7f1fc0 JB |
6436 | static char *modifier_names[] = |
6437 | { | |
fbcd35bd | 6438 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6439 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6440 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6441 | }; |
80645119 | 6442 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6443 | |
6444 | static Lisp_Object modifier_symbols; | |
6445 | ||
6446 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6447 | static Lisp_Object | |
6448 | lispy_modifier_list (modifiers) | |
6449 | int modifiers; | |
6450 | { | |
6451 | Lisp_Object modifier_list; | |
6452 | int i; | |
6453 | ||
6454 | modifier_list = Qnil; | |
80645119 | 6455 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6456 | if (modifiers & (1<<i)) |
80645119 JB |
6457 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6458 | modifier_list); | |
0a7f1fc0 JB |
6459 | |
6460 | return modifier_list; | |
6461 | } | |
6462 | ||
6463 | ||
6464 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6465 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6466 | MASK is the set of modifiers present in SYMBOL's name. | |
6467 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6468 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6469 | Qevent_symbol_elements property. */ | |
3d31316f | 6470 | |
21ec2c43 SM |
6471 | #define KEY_TO_CHAR(k) (XINT (k) & ((1 << CHARACTERBITS) - 1)) |
6472 | ||
1161d367 | 6473 | Lisp_Object |
0a7f1fc0 JB |
6474 | parse_modifiers (symbol) |
6475 | Lisp_Object symbol; | |
6476 | { | |
9b8eb840 | 6477 | Lisp_Object elements; |
0a7f1fc0 | 6478 | |
21ec2c43 SM |
6479 | if (INTEGERP (symbol)) |
6480 | return (Fcons (make_number (KEY_TO_CHAR (symbol)), | |
6481 | Fcons (make_number (XINT (symbol) & CHAR_MODIFIER_MASK), | |
6482 | Qnil))); | |
6483 | else if (!SYMBOLP (symbol)) | |
6484 | return Qnil; | |
6485 | ||
9b8eb840 | 6486 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6487 | if (CONSP (elements)) |
6488 | return elements; | |
6489 | else | |
6490 | { | |
6491 | int end; | |
ec0faad2 | 6492 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6493 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6494 | Lisp_Object mask; |
6495 | ||
d5db4077 KR |
6496 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6497 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6498 | Qnil); |
6499 | ||
6b61353c | 6500 | if (modifiers & ~INTMASK) |
734fef94 | 6501 | abort (); |
bb9e9bed | 6502 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6503 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6504 | ||
6505 | /* Cache the parsing results on SYMBOL. */ | |
6506 | Fput (symbol, Qevent_symbol_element_mask, | |
6507 | elements); | |
6508 | Fput (symbol, Qevent_symbol_elements, | |
6509 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6510 | ||
6511 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6512 | it would be nice to put that in unmodified's cache. | |
6513 | But we can't, since we're not sure that parse_modifiers is | |
6514 | canonical. */ | |
6515 | ||
6516 | return elements; | |
6517 | } | |
6518 | } | |
6519 | ||
58da34c7 SM |
6520 | DEFUN ("internal-event-symbol-parse-modifiers", Fevent_symbol_parse_modifiers, |
6521 | Sevent_symbol_parse_modifiers, 1, 1, 0, | |
6522 | doc: /* Parse the event symbol. For internal use. */) | |
9b6112e8 AS |
6523 | (symbol) |
6524 | Lisp_Object symbol; | |
58da34c7 SM |
6525 | { |
6526 | /* Fill the cache if needed. */ | |
6527 | parse_modifiers (symbol); | |
6528 | /* Ignore the result (which is stored on Qevent_symbol_element_mask) | |
6529 | and use the Lispier representation stored on Qevent_symbol_elements | |
6530 | instead. */ | |
6531 | return Fget (symbol, Qevent_symbol_elements); | |
6532 | } | |
6533 | ||
0a7f1fc0 JB |
6534 | /* Apply the modifiers MODIFIERS to the symbol BASE. |
6535 | BASE must be unmodified. | |
6536 | ||
6537 | This is like apply_modifiers_uncached, but uses BASE's | |
6538 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6539 | Qevent_symbol_elements properties, since it has that info anyway. |
6540 | ||
6541 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6542 | the modified symbol. */ | |
0a7f1fc0 JB |
6543 | static Lisp_Object |
6544 | apply_modifiers (modifiers, base) | |
6545 | int modifiers; | |
6546 | Lisp_Object base; | |
6547 | { | |
7b4aedb9 | 6548 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6549 | |
80645119 | 6550 | /* Mask out upper bits. We don't know where this value's been. */ |
6b61353c | 6551 | modifiers &= INTMASK; |
80645119 | 6552 | |
21ec2c43 | 6553 | if (INTEGERP (base)) |
4b7ab1c4 | 6554 | return make_number (XINT (base) | modifiers); |
21ec2c43 | 6555 | |
0a7f1fc0 | 6556 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6557 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6558 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6559 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6560 | |
6561 | if (CONSP (entry)) | |
7539e11f | 6562 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6563 | else |
6564 | { | |
df0f2ba1 | 6565 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6566 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6567 | SDATA (SYMBOL_NAME (base)), |
6568 | SCHARS (SYMBOL_NAME (base)), | |
6569 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6570 | |
6571 | /* Add the new symbol to the base's cache. */ | |
6572 | entry = Fcons (index, new_symbol); | |
6573 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6574 | ||
35fb885d SM |
6575 | /* We have the parsing info now for free, so we could add it to |
6576 | the caches: | |
6577 | XSETFASTINT (index, modifiers); | |
6578 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6579 | Fcons (base, Fcons (index, Qnil))); | |
6580 | Fput (new_symbol, Qevent_symbol_elements, | |
6581 | Fcons (base, lispy_modifier_list (modifiers))); | |
6582 | Sadly, this is only correct if `base' is indeed a base event, | |
6583 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6584 | } |
0a7f1fc0 | 6585 | |
df0f2ba1 | 6586 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6587 | |
6588 | You'd think we could just set this once and for all when we | |
6589 | intern the symbol above, but reorder_modifiers may call us when | |
6590 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6591 | because it has a Qmodifier_cache property it must have its |
6592 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6593 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6594 | { | |
9b8eb840 | 6595 | Lisp_Object kind; |
7b4aedb9 | 6596 | |
9b8eb840 | 6597 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6598 | if (! NILP (kind)) |
6599 | Fput (new_symbol, Qevent_kind, kind); | |
6600 | } | |
6601 | ||
6602 | return new_symbol; | |
0a7f1fc0 JB |
6603 | } |
6604 | ||
6605 | ||
6606 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6607 | return a symbol with the modifiers placed in the canonical order. | |
6608 | Canonical order is alphabetical, except for down and drag, which | |
6609 | always come last. The 'click' modifier is never written out. | |
6610 | ||
6611 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6612 | and M-C-foo end up being equivalent in the keymap. */ | |
6613 | ||
6614 | Lisp_Object | |
6615 | reorder_modifiers (symbol) | |
6616 | Lisp_Object symbol; | |
6617 | { | |
6618 | /* It's hopefully okay to write the code this way, since everything | |
6619 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6620 | Lisp_Object parsed; |
0a7f1fc0 | 6621 | |
9b8eb840 | 6622 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6623 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6624 | XCAR (parsed)); | |
0a7f1fc0 JB |
6625 | } |
6626 | ||
6627 | ||
284f4730 JB |
6628 | /* For handling events, we often want to produce a symbol whose name |
6629 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6630 | to some base, like the name of a function key or mouse button. | |
6631 | modify_event_symbol produces symbols of this sort. | |
6632 | ||
6633 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6634 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6635 | in the table. | |
6636 | ||
8e1e4240 GM |
6637 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6638 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6639 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6640 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6641 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6642 | |
284f4730 JB |
6643 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6644 | persist between calls to modify_event_symbol that it can use to | |
6645 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6646 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6647 | |
6648 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6649 | |
284f4730 JB |
6650 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6651 | whose prefixes should be applied to the symbol name. | |
6652 | ||
6653 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6654 | the returned symbol. |
88cb0656 JB |
6655 | |
6656 | The symbols we create are supposed to have an | |
eb8c3be9 | 6657 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6658 | in the symbol's name. */ |
6659 | ||
284f4730 | 6660 | static Lisp_Object |
8e1e4240 | 6661 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6662 | name_table, symbol_table, table_size) |
284f4730 JB |
6663 | int symbol_num; |
6664 | unsigned modifiers; | |
6665 | Lisp_Object symbol_kind; | |
8e1e4240 | 6666 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6667 | char **name_table; |
6668 | Lisp_Object *symbol_table; | |
2c834fb3 | 6669 | unsigned int table_size; |
284f4730 | 6670 | { |
80e4aa30 RS |
6671 | Lisp_Object value; |
6672 | Lisp_Object symbol_int; | |
6673 | ||
2c834fb3 KH |
6674 | /* Get rid of the "vendor-specific" bit here. */ |
6675 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6676 | |
6677 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6678 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6679 | return Qnil; |
284f4730 | 6680 | |
80e4aa30 RS |
6681 | if (CONSP (*symbol_table)) |
6682 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6683 | ||
0a7f1fc0 | 6684 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6685 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6686 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6687 | we've never used that symbol before. */ | |
80e4aa30 | 6688 | else |
88cb0656 | 6689 | { |
80e4aa30 RS |
6690 | if (! VECTORP (*symbol_table) |
6691 | || XVECTOR (*symbol_table)->size != table_size) | |
6692 | { | |
6693 | Lisp_Object size; | |
0a7f1fc0 | 6694 | |
bb9e9bed | 6695 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6696 | *symbol_table = Fmake_vector (size, Qnil); |
6697 | } | |
284f4730 | 6698 | |
80e4aa30 RS |
6699 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6700 | } | |
284f4730 | 6701 | |
0a7f1fc0 | 6702 | /* Have we already used this symbol before? */ |
80e4aa30 | 6703 | if (NILP (value)) |
284f4730 | 6704 | { |
0a7f1fc0 | 6705 | /* No; let's create it. */ |
8e1e4240 GM |
6706 | if (CONSP (name_alist_or_stem)) |
6707 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6708 | else if (STRINGP (name_alist_or_stem)) | |
6709 | { | |
d5db4077 | 6710 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6711 | char *buf = (char *) alloca (len + 50); |
987a3489 KL |
6712 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6713 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6714 | value = intern (buf); |
6715 | } | |
2ff6714d | 6716 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6717 | value = intern (name_table[symbol_num]); |
b64b4075 | 6718 | |
e98a93eb | 6719 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6720 | if (NILP (value)) |
6721 | { | |
6722 | char *name = x_get_keysym_name (symbol_num); | |
6723 | if (name) | |
6724 | value = intern (name); | |
6725 | } | |
6726 | #endif | |
6727 | ||
b64b4075 | 6728 | if (NILP (value)) |
d1f50460 RS |
6729 | { |
6730 | char buf[20]; | |
6731 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6732 | value = intern (buf); |
d1f50460 | 6733 | } |
0a7f1fc0 | 6734 | |
80e4aa30 | 6735 | if (CONSP (*symbol_table)) |
4205cb08 | 6736 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6737 | else |
6738 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6739 | ||
df0f2ba1 | 6740 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6741 | builds the Qevent_symbol_elements property, which the user |
6742 | cares about. */ | |
80e4aa30 RS |
6743 | apply_modifiers (modifiers & click_modifier, value); |
6744 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6745 | } |
88cb0656 | 6746 | |
0a7f1fc0 | 6747 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6748 | return apply_modifiers (modifiers, value); |
284f4730 | 6749 | } |
6da3dd3a RS |
6750 | \f |
6751 | /* Convert a list that represents an event type, | |
6752 | such as (ctrl meta backspace), into the usual representation of that | |
6753 | event type as a number or a symbol. */ | |
6754 | ||
a1706c30 | 6755 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6756 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6757 | EVENT-DESC should contain one base event type (a character or symbol) | |
6758 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6759 | drag, down, double or triple). The base must be last. | |
6760 | The return value is an event type (a character or symbol) which | |
6761 | has the same base event type and all the specified modifiers. */) | |
6762 | (event_desc) | |
e57d8fd8 | 6763 | Lisp_Object event_desc; |
6da3dd3a RS |
6764 | { |
6765 | Lisp_Object base; | |
6766 | int modifiers = 0; | |
6767 | Lisp_Object rest; | |
6768 | ||
6769 | base = Qnil; | |
e57d8fd8 | 6770 | rest = event_desc; |
6da3dd3a RS |
6771 | while (CONSP (rest)) |
6772 | { | |
6773 | Lisp_Object elt; | |
6774 | int this = 0; | |
6775 | ||
7539e11f KR |
6776 | elt = XCAR (rest); |
6777 | rest = XCDR (rest); | |
6da3dd3a | 6778 | |
3d31316f | 6779 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6780 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6781 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6782 | |
6783 | if (this != 0) | |
6784 | modifiers |= this; | |
6785 | else if (!NILP (base)) | |
6786 | error ("Two bases given in one event"); | |
6787 | else | |
6788 | base = elt; | |
6789 | ||
6da3dd3a RS |
6790 | } |
6791 | ||
3d31316f | 6792 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6793 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6794 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6795 | |
6da3dd3a RS |
6796 | if (INTEGERP (base)) |
6797 | { | |
3d31316f RS |
6798 | /* Turn (shift a) into A. */ |
6799 | if ((modifiers & shift_modifier) != 0 | |
6800 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6801 | { | |
6802 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6803 | modifiers &= ~shift_modifier; | |
6804 | } | |
6805 | ||
6806 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6807 | if (modifiers & ctrl_modifier) |
3d31316f | 6808 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6809 | | make_ctrl_char (XINT (base))); |
6810 | else | |
6811 | return make_number (modifiers | XINT (base)); | |
6812 | } | |
6813 | else if (SYMBOLP (base)) | |
6814 | return apply_modifiers (modifiers, base); | |
6815 | else | |
8c907a56 GM |
6816 | { |
6817 | error ("Invalid base event"); | |
6818 | return Qnil; | |
6819 | } | |
6da3dd3a RS |
6820 | } |
6821 | ||
3d31316f RS |
6822 | /* Try to recognize SYMBOL as a modifier name. |
6823 | Return the modifier flag bit, or 0 if not recognized. */ | |
6824 | ||
6825 | static int | |
6826 | parse_solitary_modifier (symbol) | |
6827 | Lisp_Object symbol; | |
6828 | { | |
1b049b51 | 6829 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6830 | |
1b049b51 | 6831 | switch (SREF (name, 0)) |
3d31316f RS |
6832 | { |
6833 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6834 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6835 | return BIT; |
6836 | ||
6837 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6838 | if (LEN == SBYTES (name) \ |
6839 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6840 | return BIT; |
6841 | ||
6842 | case 'A': | |
6843 | SINGLE_LETTER_MOD (alt_modifier); | |
6844 | break; | |
6845 | ||
6846 | case 'a': | |
6847 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6848 | break; | |
6849 | ||
6850 | case 'C': | |
6851 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6852 | break; | |
6853 | ||
6854 | case 'c': | |
6855 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6856 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6857 | break; | |
6858 | ||
6859 | case 'H': | |
6860 | SINGLE_LETTER_MOD (hyper_modifier); | |
6861 | break; | |
6862 | ||
6863 | case 'h': | |
6864 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6865 | break; | |
6866 | ||
6867 | case 'M': | |
6868 | SINGLE_LETTER_MOD (meta_modifier); | |
6869 | break; | |
6870 | ||
6871 | case 'm': | |
6872 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6873 | break; | |
6874 | ||
6875 | case 'S': | |
6876 | SINGLE_LETTER_MOD (shift_modifier); | |
6877 | break; | |
6878 | ||
6879 | case 's': | |
6880 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6881 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6882 | SINGLE_LETTER_MOD (super_modifier); | |
6883 | break; | |
6884 | ||
6885 | case 'd': | |
6886 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6887 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6888 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6889 | break; | |
6890 | ||
6891 | case 't': | |
6892 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6893 | break; | |
6894 | ||
6895 | #undef SINGLE_LETTER_MOD | |
6896 | #undef MULTI_LETTER_MOD | |
6897 | } | |
6898 | ||
6899 | return 0; | |
6900 | } | |
6901 | ||
6da3dd3a RS |
6902 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6903 | Such a list is not valid as an event, | |
6904 | but it can be a Lucid-style event type list. */ | |
6905 | ||
6906 | int | |
6907 | lucid_event_type_list_p (object) | |
6908 | Lisp_Object object; | |
6909 | { | |
6910 | Lisp_Object tail; | |
6911 | ||
6912 | if (! CONSP (object)) | |
6913 | return 0; | |
902ae620 GM |
6914 | |
6915 | if (EQ (XCAR (object), Qhelp_echo) | |
6916 | || EQ (XCAR (object), Qvertical_line) | |
6917 | || EQ (XCAR (object), Qmode_line) | |
6918 | || EQ (XCAR (object), Qheader_line)) | |
6919 | return 0; | |
6da3dd3a | 6920 | |
7539e11f | 6921 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6922 | { |
6923 | Lisp_Object elt; | |
7539e11f | 6924 | elt = XCAR (tail); |
6da3dd3a RS |
6925 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6926 | return 0; | |
6927 | } | |
6928 | ||
6929 | return NILP (tail); | |
6930 | } | |
284f4730 | 6931 | \f |
284f4730 JB |
6932 | /* Store into *addr a value nonzero if terminal input chars are available. |
6933 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6934 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6935 | (In fact, this may actually read some input.) |
6936 | ||
a2d5fca0 JD |
6937 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6938 | timer events that are ripe. | |
6939 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6940 | events (FOCUS_IN_EVENT). | |
6941 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6942 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6943 | |
6944 | static void | |
a2d5fca0 | 6945 | get_input_pending (addr, flags) |
284f4730 | 6946 | int *addr; |
a2d5fca0 | 6947 | int flags; |
284f4730 JB |
6948 | { |
6949 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 6950 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6951 | |
6952 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6953 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6954 | return; | |
6955 | ||
6956 | /* Try to read some input and see how much we get. */ | |
6957 | gobble_input (0); | |
a2d5fca0 | 6958 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6959 | } |
6960 | ||
81931ba1 | 6961 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6962 | |
07a59269 | 6963 | void |
284f4730 JB |
6964 | gobble_input (expected) |
6965 | int expected; | |
6966 | { | |
033b73e2 MA |
6967 | #ifdef HAVE_DBUS |
6968 | /* Check whether a D-Bus message has arrived. */ | |
6969 | xd_read_queued_messages (); | |
6970 | #endif /* HAVE_DBUS */ | |
6971 | ||
284f4730 JB |
6972 | #ifndef VMS |
6973 | #ifdef SIGIO | |
6974 | if (interrupt_input) | |
6975 | { | |
32676c08 | 6976 | SIGMASKTYPE mask; |
4f8aaa74 | 6977 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6978 | read_avail_input (expected); |
e065a56e | 6979 | sigsetmask (mask); |
284f4730 JB |
6980 | } |
6981 | else | |
81931ba1 | 6982 | #ifdef POLL_FOR_INPUT |
428a555e KL |
6983 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
6984 | but read_socket_hook is not global anymore. Let's pretend that | |
6985 | it's always set. */ | |
6986 | if (!interrupt_input && poll_suppress_count == 0) | |
81931ba1 RS |
6987 | { |
6988 | SIGMASKTYPE mask; | |
4f8aaa74 | 6989 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6990 | read_avail_input (expected); |
6991 | sigsetmask (mask); | |
6992 | } | |
6993 | else | |
87485d6f | 6994 | #endif |
284f4730 JB |
6995 | #endif |
6996 | read_avail_input (expected); | |
6997 | #endif | |
6998 | } | |
a8015ab5 | 6999 | |
3b8f9651 | 7000 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
7001 | so that read_key_sequence will notice the new current buffer. */ |
7002 | ||
07a59269 | 7003 | void |
a8015ab5 KH |
7004 | record_asynch_buffer_change () |
7005 | { | |
7006 | struct input_event event; | |
a30f0615 | 7007 | Lisp_Object tem; |
1269a761 | 7008 | EVENT_INIT (event); |
a30f0615 | 7009 | |
3b8f9651 | 7010 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 7011 | event.frame_or_window = Qnil; |
da8f7368 | 7012 | event.arg = Qnil; |
241ceaf7 | 7013 | |
f65e6f7d | 7014 | #ifdef subprocesses |
a30f0615 RS |
7015 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
7016 | The purpose of the event is to make read_key_sequence look up the | |
7017 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
7018 | and the event could cause trouble by messing up (input-pending-p). */ | |
7019 | tem = Fwaiting_for_user_input_p (); | |
7020 | if (NILP (tem)) | |
7021 | return; | |
f65e6f7d RS |
7022 | #else |
7023 | /* We never need these events if we have no asynchronous subprocesses. */ | |
7024 | return; | |
7025 | #endif | |
a30f0615 | 7026 | |
241ceaf7 RS |
7027 | /* Make sure no interrupt happens while storing the event. */ |
7028 | #ifdef SIGIO | |
7029 | if (interrupt_input) | |
7030 | { | |
7031 | SIGMASKTYPE mask; | |
4f8aaa74 | 7032 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
7033 | kbd_buffer_store_event (&event); |
7034 | sigsetmask (mask); | |
7035 | } | |
7036 | else | |
7037 | #endif | |
7038 | { | |
7039 | stop_polling (); | |
7040 | kbd_buffer_store_event (&event); | |
7041 | start_polling (); | |
7042 | } | |
a8015ab5 | 7043 | } |
284f4730 JB |
7044 | \f |
7045 | #ifndef VMS | |
7046 | ||
7047 | /* Read any terminal input already buffered up by the system | |
7048 | into the kbd_buffer, but do not wait. | |
7049 | ||
7050 | EXPECTED should be nonzero if the caller knows there is some input. | |
7051 | ||
7052 | Except on VMS, all input is read by this function. | |
7053 | If interrupt_input is nonzero, this function MUST be called | |
7054 | only when SIGIO is blocked. | |
7055 | ||
7056 | Returns the number of keyboard chars read, or -1 meaning | |
7057 | this is a bad time to try to read input. */ | |
7058 | ||
7059 | static int | |
7060 | read_avail_input (expected) | |
7061 | int expected; | |
7062 | { | |
6b61353c | 7063 | int nread = 0; |
80d4c824 | 7064 | int err = 0; |
6ed8eeff | 7065 | struct terminal *t; |
1269a761 | 7066 | |
23479b40 YM |
7067 | /* Store pending user signal events, if any. */ |
7068 | if (store_user_signal_events ()) | |
7069 | expected = 0; | |
7070 | ||
6ed8eeff KL |
7071 | /* Loop through the available terminals, and call their input hooks. */ |
7072 | t = terminal_list; | |
7073 | while (t) | |
6b61353c | 7074 | { |
6ed8eeff | 7075 | struct terminal *next = t->next_terminal; |
6b61353c | 7076 | |
6ed8eeff | 7077 | if (t->read_socket_hook) |
d448e982 | 7078 | { |
3b7fbceb | 7079 | int nr; |
057a9ab4 | 7080 | struct input_event hold_quit; |
d448e982 | 7081 | |
057a9ab4 KL |
7082 | EVENT_INIT (hold_quit); |
7083 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 7084 | |
057a9ab4 | 7085 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6ed8eeff | 7086 | while (nr = (*t->read_socket_hook) (t, expected, &hold_quit), nr > 0) |
057a9ab4 KL |
7087 | { |
7088 | nread += nr; | |
7089 | expected = 0; | |
7090 | } | |
033b73e2 | 7091 | |
057a9ab4 KL |
7092 | if (nr == -1) /* Not OK to read input now. */ |
7093 | { | |
7094 | err = 1; | |
7095 | } | |
7096 | else if (nr == -2) /* Non-transient error. */ | |
7097 | { | |
6ed8eeff | 7098 | /* The terminal device terminated; it should be closed. */ |
033b73e2 | 7099 | |
6ed8eeff KL |
7100 | /* Kill Emacs if this was our last terminal. */ |
7101 | if (!terminal_list->next_terminal) | |
057a9ab4 KL |
7102 | /* Formerly simply reported no input, but that |
7103 | sometimes led to a failure of Emacs to terminate. | |
7104 | SIGHUP seems appropriate if we can't reach the | |
7105 | terminal. */ | |
7106 | /* ??? Is it really right to send the signal just to | |
7107 | this process rather than to the whole process | |
7108 | group? Perhaps on systems with FIONREAD Emacs is | |
7109 | alone in its group. */ | |
7110 | kill (getpid (), SIGHUP); | |
033b73e2 | 7111 | |
6ed8eeff | 7112 | /* XXX Is calling delete_terminal safe here? It calls Fdelete_frame. */ |
adf6a429 SM |
7113 | { |
7114 | Lisp_Object tmp; | |
7115 | XSETTERMINAL (tmp, t); | |
7116 | Fdelete_terminal (tmp, Qnoelisp); | |
7117 | } | |
057a9ab4 | 7118 | } |
351d2e14 | 7119 | |
057a9ab4 KL |
7120 | if (hold_quit.kind != NO_EVENT) |
7121 | kbd_buffer_store_event (&hold_quit); | |
d448e982 | 7122 | } |
6b61353c | 7123 | |
6ed8eeff | 7124 | t = next; |
6b61353c | 7125 | } |
284f4730 | 7126 | |
1cbfd764 KL |
7127 | if (err && !nread) |
7128 | nread = -1; | |
7129 | ||
8f1ce423 KL |
7130 | return nread; |
7131 | } | |
7132 | ||
7133 | /* This is the tty way of reading available input. | |
7134 | ||
6ed8eeff | 7135 | Note that each terminal device has its own `struct terminal' object, |
8f1ce423 | 7136 | and so this function is called once for each individual termcap |
6ed8eeff | 7137 | terminal. The first parameter indicates which terminal to read from. */ |
d448e982 | 7138 | |
8f1ce423 | 7139 | int |
6ed8eeff | 7140 | tty_read_avail_input (struct terminal *terminal, |
057a9ab4 KL |
7141 | int expected, |
7142 | struct input_event *hold_quit) | |
8f1ce423 | 7143 | { |
057a9ab4 KL |
7144 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
7145 | the kbd_buffer can really hold. That may prevent loss | |
7146 | of characters on some systems when input is stuffed at us. */ | |
7147 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
8f1ce423 | 7148 | int n_to_read, i; |
6ed8eeff | 7149 | struct tty_display_info *tty = terminal->display_info.tty; |
8f1ce423 | 7150 | int nread = 0; |
3b7fbceb | 7151 | |
bcc3646e | 7152 | if (!terminal->name) /* Don't read from a dead terminal. */ |
1bc973c2 | 7153 | return 0; |
ab797f65 | 7154 | |
6ed8eeff | 7155 | if (terminal->type != output_termcap) |
8f1ce423 | 7156 | abort (); |
3b7fbceb | 7157 | |
ac3d2625 | 7158 | /* XXX I think the following code should be moved to separate hook |
8f1ce423 | 7159 | functions in system-dependent files. */ |
bc536d84 | 7160 | #ifdef WINDOWSNT |
8f1ce423 | 7161 | return 0; |
bc536d84 | 7162 | #else /* not WINDOWSNT */ |
80e4aa30 | 7163 | #ifdef MSDOS |
8f1ce423 KL |
7164 | n_to_read = dos_keysns (); |
7165 | if (n_to_read == 0) | |
7166 | return 0; | |
3b7fbceb | 7167 | |
8f1ce423 KL |
7168 | cbuf[0] = dos_keyread (); |
7169 | nread = 1; | |
3b7fbceb | 7170 | |
c3a2738c | 7171 | #else /* not MSDOS */ |
9628b887 | 7172 | |
ac3d2625 | 7173 | if (! tty->term_initted) /* In case we get called during bootstrap. */ |
8f1ce423 | 7174 | return 0; |
3b7fbceb | 7175 | |
0b0d3e0b KL |
7176 | if (! tty->input) |
7177 | return 0; /* The terminal is suspended. */ | |
7178 | ||
7e5a23bd | 7179 | #ifdef HAVE_GPM |
71f44e7a | 7180 | if (gpm_tty == tty) |
7be1c21a MB |
7181 | { |
7182 | Gpm_Event event; | |
7183 | struct input_event hold_quit; | |
7184 | int gpm; | |
ae372f41 | 7185 | |
7be1c21a MB |
7186 | EVENT_INIT (hold_quit); |
7187 | hold_quit.kind = NO_EVENT; | |
ae372f41 | 7188 | |
7be1c21a MB |
7189 | while (gpm = Gpm_GetEvent (&event), gpm == 1) { |
7190 | nread += handle_one_term_event (tty, &event, &hold_quit); | |
7191 | } | |
7192 | if (hold_quit.kind != NO_EVENT) | |
7193 | kbd_buffer_store_event (&hold_quit); | |
7194 | if (nread) | |
7195 | return nread; | |
7196 | } | |
7e5a23bd | 7197 | #endif /* HAVE_GPM */ |
ae372f41 | 7198 | |
7be1c21a | 7199 | /* Determine how many characters we should *try* to read. */ |
284f4730 | 7200 | #ifdef FIONREAD |
8f1ce423 | 7201 | /* Find out how much input is available. */ |
0b0d3e0b | 7202 | if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0) |
8f1ce423 KL |
7203 | { |
7204 | if (! noninteractive) | |
6ed8eeff | 7205 | return -2; /* Close this terminal. */ |
8f1ce423 | 7206 | else |
d448e982 | 7207 | n_to_read = 0; |
8f1ce423 KL |
7208 | } |
7209 | if (n_to_read == 0) | |
7210 | return 0; | |
7211 | if (n_to_read > sizeof cbuf) | |
7212 | n_to_read = sizeof cbuf; | |
284f4730 | 7213 | #else /* no FIONREAD */ |
e39a993c | 7214 | #if defined (USG) || defined(CYGWIN) |
8f1ce423 KL |
7215 | /* Read some input if available, but don't wait. */ |
7216 | n_to_read = sizeof cbuf; | |
0b0d3e0b | 7217 | fcntl (fileno (tty->input), F_SETFL, O_NDELAY); |
284f4730 | 7218 | #else |
8f1ce423 | 7219 | you lose; |
284f4730 JB |
7220 | #endif |
7221 | #endif | |
7222 | ||
8f1ce423 KL |
7223 | /* Now read; for one reason or another, this will not block. |
7224 | NREAD is set to the number of chars read. */ | |
7225 | do | |
7226 | { | |
0b0d3e0b | 7227 | nread = emacs_read (fileno (tty->input), cbuf, n_to_read); |
8f1ce423 KL |
7228 | /* POSIX infers that processes which are not in the session leader's |
7229 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
7230 | this part standard and returns -1 from read (0) with errno==EIO | |
7231 | when the control tty is taken away. | |
ac3d2625 | 7232 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ |
8f1ce423 | 7233 | if (nread == -1 && errno == EIO) |
6ed8eeff | 7234 | return -2; /* Close this terminal. */ |
4624371d | 7235 | #if defined (AIX) && defined (_BSD) |
8f1ce423 KL |
7236 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
7237 | This looks incorrect, but it isn't, because _BSD causes | |
7238 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
7239 | and that causes a value other than 0 when there is no input. */ | |
7240 | if (nread == 0) | |
6ed8eeff | 7241 | return -2; /* Close this terminal. */ |
284f4730 | 7242 | #endif |
8f1ce423 KL |
7243 | } |
7244 | while ( | |
7245 | /* We used to retry the read if it was interrupted. | |
7246 | But this does the wrong thing when O_NDELAY causes | |
7247 | an EAGAIN error. Does anybody know of a situation | |
7248 | where a retry is actually needed? */ | |
791587ee | 7249 | #if 0 |
8f1ce423 | 7250 | nread < 0 && (errno == EAGAIN |
6aec06f5 | 7251 | #ifdef EFAULT |
8f1ce423 | 7252 | || errno == EFAULT |
80e4aa30 | 7253 | #endif |
284f4730 | 7254 | #ifdef EBADSLT |
8f1ce423 | 7255 | || errno == EBADSLT |
284f4730 | 7256 | #endif |
8f1ce423 | 7257 | ) |
791587ee | 7258 | #else |
8f1ce423 | 7259 | 0 |
791587ee | 7260 | #endif |
8f1ce423 | 7261 | ); |
284f4730 JB |
7262 | |
7263 | #ifndef FIONREAD | |
e39a993c | 7264 | #if defined (USG) || defined (CYGWIN) |
0b0d3e0b | 7265 | fcntl (fileno (tty->input), F_SETFL, 0); |
e39a993c | 7266 | #endif /* USG or CYGWIN */ |
284f4730 | 7267 | #endif /* no FIONREAD */ |
3b7fbceb | 7268 | |
8f1ce423 KL |
7269 | if (nread <= 0) |
7270 | return nread; | |
3b7fbceb | 7271 | |
9628b887 KL |
7272 | #endif /* not MSDOS */ |
7273 | #endif /* not WINDOWSNT */ | |
3b7fbceb | 7274 | |
284f4730 JB |
7275 | for (i = 0; i < nread; i++) |
7276 | { | |
057a9ab4 KL |
7277 | struct input_event buf; |
7278 | EVENT_INIT (buf); | |
7279 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7280 | buf.modifiers = 0; | |
8f1ce423 | 7281 | if (tty->meta_key == 1 && (cbuf[i] & 0x80)) |
057a9ab4 | 7282 | buf.modifiers = meta_modifier; |
8f1ce423 KL |
7283 | if (tty->meta_key != 2) |
7284 | cbuf[i] &= ~0x80; | |
033b73e2 | 7285 | |
057a9ab4 | 7286 | buf.code = cbuf[i]; |
ac3d2625 KL |
7287 | /* Set the frame corresponding to the active tty. Note that the |
7288 | value of selected_frame is not reliable here, redisplay tends | |
7289 | to temporarily change it. */ | |
057a9ab4 KL |
7290 | buf.frame_or_window = tty->top_frame; |
7291 | buf.arg = Qnil; | |
033b73e2 | 7292 | |
057a9ab4 KL |
7293 | kbd_buffer_store_event (&buf); |
7294 | /* Don't look at input that follows a C-g too closely. | |
7295 | This reduces lossage due to autorepeat on C-g. */ | |
7296 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
7297 | && buf.code == quit_char) | |
7298 | break; | |
284f4730 JB |
7299 | } |
7300 | ||
7301 | return nread; | |
7302 | } | |
7303 | #endif /* not VMS */ | |
7304 | \f | |
6b61353c KH |
7305 | void |
7306 | handle_async_input () | |
7307 | { | |
7308 | #ifdef BSD4_1 | |
7309 | extern int select_alarmed; | |
7310 | #endif | |
aa477689 | 7311 | |
6b61353c KH |
7312 | interrupt_input_pending = 0; |
7313 | ||
7314 | while (1) | |
7315 | { | |
7316 | int nread; | |
7317 | nread = read_avail_input (1); | |
7318 | /* -1 means it's not ok to read the input now. | |
7319 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
7320 | 0 means there was no keyboard input available. */ | |
7321 | if (nread <= 0) | |
7322 | break; | |
7323 | ||
7324 | #ifdef BSD4_1 | |
7325 | select_alarmed = 1; /* Force the select emulator back to life */ | |
7326 | #endif | |
7327 | } | |
7328 | } | |
7329 | ||
284f4730 JB |
7330 | #ifdef SIGIO /* for entire page */ |
7331 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
7332 | ||
4216b545 | 7333 | static SIGTYPE |
284f4730 JB |
7334 | input_available_signal (signo) |
7335 | int signo; | |
7336 | { | |
7337 | /* Must preserve main program's value of errno. */ | |
7338 | int old_errno = errno; | |
5970a8cb | 7339 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
7340 | /* USG systems forget handlers when they are used; |
7341 | must reestablish each time */ | |
7342 | signal (signo, input_available_signal); | |
7343 | #endif /* USG */ | |
7344 | ||
7345 | #ifdef BSD4_1 | |
7346 | sigisheld (SIGIO); | |
7347 | #endif | |
7348 | ||
6b61353c KH |
7349 | #ifdef SYNC_INPUT |
7350 | interrupt_input_pending = 1; | |
7351 | #else | |
333f1b6f | 7352 | SIGNAL_THREAD_CHECK (signo); |
bd55c35c | 7353 | #endif |
a25f766a | 7354 | |
bd55c35c JD |
7355 | if (input_available_clear_time) |
7356 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d7031edc | 7357 | |
bd55c35c | 7358 | #ifndef SYNC_INPUT |
6b61353c | 7359 | handle_async_input (); |
284f4730 | 7360 | #endif |
284f4730 JB |
7361 | |
7362 | #ifdef BSD4_1 | |
7363 | sigfree (); | |
7364 | #endif | |
7365 | errno = old_errno; | |
7366 | } | |
7367 | #endif /* SIGIO */ | |
ad163903 JB |
7368 | |
7369 | /* Send ourselves a SIGIO. | |
7370 | ||
7371 | This function exists so that the UNBLOCK_INPUT macro in | |
7372 | blockinput.h can have some way to take care of input we put off | |
7373 | dealing with, without assuming that every file which uses | |
7374 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
7375 | void | |
7376 | reinvoke_input_signal () | |
7377 | { | |
df0f2ba1 | 7378 | #ifdef SIGIO |
6b61353c | 7379 | handle_async_input (); |
ad163903 JB |
7380 | #endif |
7381 | } | |
7382 | ||
7383 | ||
284f4730 | 7384 | \f |
23479b40 YM |
7385 | /* User signal events. */ |
7386 | ||
7387 | struct user_signal_info | |
7388 | { | |
7389 | /* Signal number. */ | |
7390 | int sig; | |
7391 | ||
7392 | /* Name of the signal. */ | |
7393 | char *name; | |
7394 | ||
7395 | /* Number of pending signals. */ | |
7396 | int npending; | |
7397 | ||
7398 | struct user_signal_info *next; | |
7399 | }; | |
7400 | ||
7401 | /* List of user signals. */ | |
7402 | static struct user_signal_info *user_signals = NULL; | |
7403 | ||
7404 | void | |
7405 | add_user_signal (sig, name) | |
7406 | int sig; | |
7407 | const char *name; | |
7408 | { | |
7409 | struct user_signal_info *p; | |
7410 | ||
7411 | for (p = user_signals; p; p = p->next) | |
7412 | if (p->sig == sig) | |
7413 | /* Already added. */ | |
7414 | return; | |
7415 | ||
7416 | p = xmalloc (sizeof (struct user_signal_info)); | |
7417 | p->sig = sig; | |
7418 | p->name = xstrdup (name); | |
7419 | p->npending = 0; | |
7420 | p->next = user_signals; | |
7421 | user_signals = p; | |
7422 | ||
7423 | signal (sig, handle_user_signal); | |
7424 | } | |
7425 | ||
7426 | static SIGTYPE | |
7427 | handle_user_signal (sig) | |
7428 | int sig; | |
7429 | { | |
7430 | int old_errno = errno; | |
7431 | struct user_signal_info *p; | |
7432 | ||
7433 | #if defined (USG) && !defined (POSIX_SIGNALS) | |
7434 | /* USG systems forget handlers when they are used; | |
7435 | must reestablish each time */ | |
7436 | signal (sig, handle_user_signal); | |
7437 | #endif | |
7438 | ||
7439 | SIGNAL_THREAD_CHECK (sig); | |
7440 | ||
7441 | for (p = user_signals; p; p = p->next) | |
7442 | if (p->sig == sig) | |
7443 | { | |
7444 | p->npending++; | |
7445 | #ifdef SIGIO | |
7446 | if (interrupt_input) | |
7447 | kill (getpid (), SIGIO); | |
7448 | else | |
7449 | #endif | |
7450 | { | |
7451 | /* Tell wait_reading_process_output that it needs to wake | |
7452 | up and look around. */ | |
7453 | if (input_available_clear_time) | |
7454 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
7455 | } | |
7456 | break; | |
7457 | } | |
7458 | ||
7459 | errno = old_errno; | |
7460 | } | |
7461 | ||
7462 | static char * | |
7463 | find_user_signal_name (sig) | |
7464 | int sig; | |
7465 | { | |
7466 | struct user_signal_info *p; | |
7467 | ||
7468 | for (p = user_signals; p; p = p->next) | |
7469 | if (p->sig == sig) | |
7470 | return p->name; | |
7471 | ||
7472 | return NULL; | |
7473 | } | |
7474 | ||
7475 | static int | |
7476 | store_user_signal_events () | |
7477 | { | |
7478 | struct user_signal_info *p; | |
7479 | struct input_event buf; | |
7480 | int nstored = 0; | |
7481 | ||
7482 | for (p = user_signals; p; p = p->next) | |
7483 | if (p->npending > 0) | |
7484 | { | |
7485 | SIGMASKTYPE mask; | |
7486 | ||
7487 | if (nstored == 0) | |
7488 | { | |
7489 | bzero (&buf, sizeof buf); | |
7490 | buf.kind = USER_SIGNAL_EVENT; | |
7491 | buf.frame_or_window = selected_frame; | |
7492 | } | |
7493 | nstored += p->npending; | |
7494 | ||
7495 | mask = sigblock (sigmask (p->sig)); | |
7496 | do | |
7497 | { | |
23479b40 YM |
7498 | buf.code = p->sig; |
7499 | kbd_buffer_store_event (&buf); | |
7500 | p->npending--; | |
7501 | } | |
7502 | while (p->npending > 0); | |
7503 | sigsetmask (mask); | |
7504 | } | |
7505 | ||
7506 | return nstored; | |
7507 | } | |
7508 | ||
7509 | \f | |
318ab85c SM |
7510 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
7511 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
7512 | |
7513 | /* These variables hold the vector under construction within | |
7514 | menu_bar_items and its subroutines, and the current index | |
7515 | for storing into that vector. */ | |
7516 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 7517 | static int menu_bar_items_index; |
5ec75a55 | 7518 | |
b7c49376 RS |
7519 | /* Return a vector of menu items for a menu bar, appropriate |
7520 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 7521 | KEY STRING MAPLIST. |
b7c49376 RS |
7522 | |
7523 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
7524 | |
7525 | Lisp_Object | |
b7c49376 RS |
7526 | menu_bar_items (old) |
7527 | Lisp_Object old; | |
5ec75a55 RS |
7528 | { |
7529 | /* The number of keymaps we're scanning right now, and the number of | |
7530 | keymaps we have allocated space for. */ | |
7531 | int nmaps; | |
7532 | ||
7533 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
7534 | in the current keymaps, or nil where it is not a prefix. */ | |
7535 | Lisp_Object *maps; | |
7536 | ||
aebfea68 | 7537 | Lisp_Object def, tail; |
5ec75a55 RS |
7538 | |
7539 | Lisp_Object result; | |
7540 | ||
7541 | int mapno; | |
47d319aa | 7542 | Lisp_Object oquit; |
5ec75a55 | 7543 | |
b7c49376 RS |
7544 | int i; |
7545 | ||
db60d856 JB |
7546 | /* In order to build the menus, we need to call the keymap |
7547 | accessors. They all call QUIT. But this function is called | |
7548 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
7549 | quitting while building the menus. |
7550 | We do this instead of specbind because (1) errors will clear it anyway | |
7551 | and (2) this avoids risk of specpdl overflow. */ | |
7552 | oquit = Vinhibit_quit; | |
df0f2ba1 | 7553 | Vinhibit_quit = Qt; |
db60d856 | 7554 | |
b7c49376 RS |
7555 | if (!NILP (old)) |
7556 | menu_bar_items_vector = old; | |
7557 | else | |
7558 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
7559 | menu_bar_items_index = 0; | |
7560 | ||
5ec75a55 RS |
7561 | /* Build our list of keymaps. |
7562 | If we recognize a function key and replace its escape sequence in | |
7563 | keybuf with its symbol, or if the sequence starts with a mouse | |
7564 | click and we need to switch buffers, we jump back here to rebuild | |
7565 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7566 | { |
5ec75a55 RS |
7567 | Lisp_Object *tmaps; |
7568 | ||
217258d5 | 7569 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 7570 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 7571 | { |
217258d5 KH |
7572 | /* Yes, use them (if non-nil) as well as the global map. */ |
7573 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7574 | nmaps = 0; | |
7575 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7576 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7577 | if (!NILP (Voverriding_local_map)) | |
7578 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
7579 | } |
7580 | else | |
7581 | { | |
fd646341 KS |
7582 | /* No, so use major and minor mode keymaps and keymap property. |
7583 | Note that menu-bar bindings in the local-map and keymap | |
7584 | properties may not work reliable, as they are only | |
7585 | recognized when the menu-bar (or mode-line) is updated, | |
7586 | which does not normally happen after every command. */ | |
7587 | Lisp_Object tem; | |
7588 | int nminor; | |
7589 | nminor = current_minor_maps (NULL, &tmaps); | |
7590 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7591 | nmaps = 0; | |
7592 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7593 | maps[nmaps++] = tem; | |
7594 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7595 | nmaps += nminor; | |
7596 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 7597 | } |
217258d5 | 7598 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
7599 | } |
7600 | ||
7601 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
7602 | ||
7603 | result = Qnil; | |
7604 | ||
e58aa385 | 7605 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
7606 | if (!NILP (maps[mapno])) |
7607 | { | |
341a09cf SM |
7608 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
7609 | 0, 1); | |
02067692 | 7610 | if (CONSP (def)) |
4216b545 SM |
7611 | { |
7612 | menu_bar_one_keymap_changed_items = Qnil; | |
7613 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
7614 | } | |
25126faa | 7615 | } |
5ec75a55 | 7616 | |
b7c49376 RS |
7617 | /* Move to the end those items that should be at the end. */ |
7618 | ||
7539e11f | 7619 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7620 | { |
b7c49376 RS |
7621 | int i; |
7622 | int end = menu_bar_items_index; | |
7623 | ||
35b3402f | 7624 | for (i = 0; i < end; i += 4) |
7539e11f | 7625 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7626 | { |
35b3402f | 7627 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7628 | /* Move the item at index I to the end, |
7629 | shifting all the others forward. */ | |
7630 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7631 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7632 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7633 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7634 | if (end > i + 4) | |
7635 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7636 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7637 | (end - i - 4) * sizeof (Lisp_Object)); |
7638 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7639 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7640 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7641 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7642 | break; |
b7c49376 RS |
7643 | } |
7644 | } | |
9f9c0e27 | 7645 | |
0c9071cd | 7646 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7647 | i = menu_bar_items_index; |
35b3402f | 7648 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7649 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7650 | /* Add this item. */ |
7651 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7652 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7653 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7654 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7655 | menu_bar_items_index = i; |
a73c5e29 | 7656 | |
47d319aa | 7657 | Vinhibit_quit = oquit; |
b7c49376 | 7658 | return menu_bar_items_vector; |
5ec75a55 RS |
7659 | } |
7660 | \f | |
f5e09c8b RS |
7661 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7662 | If there's already an item for KEY, add this DEF to it. */ | |
7663 | ||
e8886a1d RS |
7664 | Lisp_Object item_properties; |
7665 | ||
b7c49376 | 7666 | static void |
4216b545 SM |
7667 | menu_bar_item (key, item, dummy1, dummy2) |
7668 | Lisp_Object key, item, dummy1; | |
7669 | void *dummy2; | |
5ec75a55 | 7670 | { |
e8886a1d | 7671 | struct gcpro gcpro1; |
b7c49376 | 7672 | int i; |
759860a6 | 7673 | Lisp_Object tem; |
5ec75a55 | 7674 | |
e8886a1d | 7675 | if (EQ (item, Qundefined)) |
e58aa385 | 7676 | { |
f5e09c8b | 7677 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7678 | discard any previously made menu bar item. */ |
b7c49376 | 7679 | |
35b3402f | 7680 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7681 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7682 | { | |
35b3402f RS |
7683 | if (menu_bar_items_index > i + 4) |
7684 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7685 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7686 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7687 | menu_bar_items_index -= 4; | |
b7c49376 | 7688 | } |
e58aa385 RS |
7689 | } |
7690 | ||
759860a6 RS |
7691 | /* If this keymap has already contributed to this KEY, |
7692 | don't contribute to it a second time. */ | |
7693 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7694 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7695 | return; |
7696 | ||
7697 | menu_bar_one_keymap_changed_items | |
7698 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7699 | ||
9cd2ced7 SM |
7700 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7701 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7702 | it still correctly hides any further menu item. */ | |
7703 | GCPRO1 (key); | |
7704 | i = parse_menu_item (item, 0, 1); | |
7705 | UNGCPRO; | |
7706 | if (!i) | |
7707 | return; | |
7708 | ||
e8886a1d RS |
7709 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7710 | ||
f5e09c8b | 7711 | /* Find any existing item for this KEY. */ |
35b3402f | 7712 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7713 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7714 | break; | |
7715 | ||
f5e09c8b | 7716 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7717 | if (i == menu_bar_items_index) |
7718 | { | |
7719 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7720 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7721 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7722 | /* Add this item. */ |
7723 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7724 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7725 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7726 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7727 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7728 | menu_bar_items_index = i; |
7729 | } | |
e8886a1d | 7730 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7731 | else |
7732 | { | |
7733 | Lisp_Object old; | |
7734 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7735 | /* If the new and the old items are not both keymaps, |
7736 | the lookup will only find `item'. */ | |
7737 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7738 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7739 | } |
5ec75a55 RS |
7740 | } |
7741 | \f | |
e8886a1d RS |
7742 | /* This is used as the handler when calling menu_item_eval_property. */ |
7743 | static Lisp_Object | |
7744 | menu_item_eval_property_1 (arg) | |
7745 | Lisp_Object arg; | |
7746 | { | |
7747 | /* If we got a quit from within the menu computation, | |
7748 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7749 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7750 | Fsignal (Qquit, Qnil); |
7751 | ||
7752 | return Qnil; | |
7753 | } | |
7754 | ||
c60ee5e7 | 7755 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7756 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7757 | Lisp_Object |
e8886a1d RS |
7758 | menu_item_eval_property (sexpr) |
7759 | Lisp_Object sexpr; | |
7760 | { | |
aed13378 | 7761 | int count = SPECPDL_INDEX (); |
e8886a1d | 7762 | Lisp_Object val; |
44e553a3 | 7763 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7764 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7765 | menu_item_eval_property_1); | |
44e553a3 | 7766 | return unbind_to (count, val); |
e8886a1d RS |
7767 | } |
7768 | ||
7769 | /* This function parses a menu item and leaves the result in the | |
7770 | vector item_properties. | |
7771 | ITEM is a key binding, a possible menu item. | |
7772 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7773 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7774 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7775 | top level. |
fd3613d7 | 7776 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7777 | parse_menu_item returns true if the item is a menu item and false |
7778 | otherwise. */ | |
7779 | ||
7780 | int | |
7781 | parse_menu_item (item, notreal, inmenubar) | |
7782 | Lisp_Object item; | |
7783 | int notreal, inmenubar; | |
7784 | { | |
adc1d5c8 | 7785 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7786 | Lisp_Object cachelist; |
7787 | Lisp_Object filter; | |
7788 | Lisp_Object keyhint; | |
e8886a1d | 7789 | int i; |
74c1de23 RS |
7790 | int newcache = 0; |
7791 | ||
07ba902e RS |
7792 | cachelist = Qnil; |
7793 | filter = Qnil; | |
7794 | keyhint = Qnil; | |
7795 | ||
e8886a1d RS |
7796 | if (!CONSP (item)) |
7797 | return 0; | |
7798 | ||
e8886a1d RS |
7799 | /* Create item_properties vector if necessary. */ |
7800 | if (NILP (item_properties)) | |
7801 | item_properties | |
7802 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7803 | ||
7804 | /* Initialize optional entries. */ | |
7805 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
b1ebcadb SM |
7806 | ASET (item_properties, i, Qnil); |
7807 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); | |
c60ee5e7 | 7808 | |
e8886a1d | 7809 | /* Save the item here to protect it from GC. */ |
b1ebcadb | 7810 | ASET (item_properties, ITEM_PROPERTY_ITEM, item); |
e8886a1d | 7811 | |
7539e11f | 7812 | item_string = XCAR (item); |
e8886a1d RS |
7813 | |
7814 | start = item; | |
7539e11f | 7815 | item = XCDR (item); |
e8886a1d RS |
7816 | if (STRINGP (item_string)) |
7817 | { | |
7818 | /* Old format menu item. */ | |
b1ebcadb | 7819 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d RS |
7820 | |
7821 | /* Maybe help string. */ | |
7539e11f | 7822 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7823 | { |
b1ebcadb | 7824 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7825 | start = item; |
7539e11f | 7826 | item = XCDR (item); |
e8886a1d | 7827 | } |
c60ee5e7 | 7828 | |
31f84d03 | 7829 | /* Maybe key binding cache. */ |
7539e11f KR |
7830 | if (CONSP (item) && CONSP (XCAR (item)) |
7831 | && (NILP (XCAR (XCAR (item))) | |
7832 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7833 | { |
7539e11f KR |
7834 | cachelist = XCAR (item); |
7835 | item = XCDR (item); | |
e8886a1d | 7836 | } |
c60ee5e7 | 7837 | |
e8886a1d | 7838 | /* This is the real definition--the function to run. */ |
b1ebcadb | 7839 | ASET (item_properties, ITEM_PROPERTY_DEF, item); |
e8886a1d RS |
7840 | |
7841 | /* Get enable property, if any. */ | |
7842 | if (SYMBOLP (item)) | |
7843 | { | |
7844 | tem = Fget (item, Qmenu_enable); | |
9d56e0da | 7845 | if (!NILP (Venable_disabled_menus_and_buttons)) |
b1ebcadb | 7846 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7847 | else if (!NILP (tem)) |
b1ebcadb | 7848 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7849 | } |
7850 | } | |
7851 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7852 | { | |
7853 | /* New format menu item. */ | |
b1ebcadb | 7854 | ASET (item_properties, ITEM_PROPERTY_NAME, XCAR (item)); |
7539e11f | 7855 | start = XCDR (item); |
e8886a1d RS |
7856 | if (CONSP (start)) |
7857 | { | |
7858 | /* We have a real binding. */ | |
b1ebcadb | 7859 | ASET (item_properties, ITEM_PROPERTY_DEF, XCAR (start)); |
e8886a1d | 7860 | |
7539e11f | 7861 | item = XCDR (start); |
e8886a1d | 7862 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7863 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7864 | { |
7539e11f KR |
7865 | cachelist = XCAR (item); |
7866 | item = XCDR (item); | |
e8886a1d RS |
7867 | } |
7868 | ||
7869 | /* Parse properties. */ | |
7539e11f | 7870 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7871 | { |
7539e11f KR |
7872 | tem = XCAR (item); |
7873 | item = XCDR (item); | |
e8886a1d RS |
7874 | |
7875 | if (EQ (tem, QCenable)) | |
9d56e0da EZ |
7876 | { |
7877 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
b1ebcadb | 7878 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7879 | else |
b1ebcadb | 7880 | ASET (item_properties, ITEM_PROPERTY_ENABLE, XCAR (item)); |
9d56e0da | 7881 | } |
e8886a1d RS |
7882 | else if (EQ (tem, QCvisible) && !notreal) |
7883 | { | |
7884 | /* If got a visible property and that evaluates to nil | |
7885 | then ignore this item. */ | |
7539e11f | 7886 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7887 | if (NILP (tem)) |
adc1d5c8 | 7888 | return 0; |
e8886a1d RS |
7889 | } |
7890 | else if (EQ (tem, QChelp)) | |
b1ebcadb | 7891 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7892 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7893 | filter = item; |
7894 | else if (EQ (tem, QCkey_sequence)) | |
7895 | { | |
7539e11f | 7896 | tem = XCAR (item); |
74c1de23 RS |
7897 | if (NILP (cachelist) |
7898 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7899 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7900 | keyhint = item; | |
7901 | } | |
7902 | else if (EQ (tem, QCkeys)) | |
7903 | { | |
7539e11f | 7904 | tem = XCAR (item); |
03cee6ae | 7905 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
b1ebcadb | 7906 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
74c1de23 | 7907 | } |
7539e11f | 7908 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7909 | { |
74c1de23 | 7910 | Lisp_Object type; |
7539e11f KR |
7911 | tem = XCAR (item); |
7912 | type = XCAR (tem); | |
e8886a1d RS |
7913 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7914 | { | |
b1ebcadb SM |
7915 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
7916 | XCDR (tem)); | |
7917 | ASET (item_properties, ITEM_PROPERTY_TYPE, type); | |
e8886a1d RS |
7918 | } |
7919 | } | |
7539e11f | 7920 | item = XCDR (item); |
e8886a1d RS |
7921 | } |
7922 | } | |
7923 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7924 | return 0; |
e8886a1d RS |
7925 | } |
7926 | else | |
adc1d5c8 | 7927 | return 0; /* not a menu item */ |
e8886a1d RS |
7928 | |
7929 | /* If item string is not a string, evaluate it to get string. | |
7930 | If we don't get a string, skip this item. */ | |
3626fb1a | 7931 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7932 | if (!(STRINGP (item_string) || notreal)) |
7933 | { | |
7934 | item_string = menu_item_eval_property (item_string); | |
7935 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7936 | return 0; |
b1ebcadb | 7937 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d | 7938 | } |
c60ee5e7 | 7939 | |
e8886a1d | 7940 | /* If got a filter apply it on definition. */ |
3626fb1a | 7941 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7942 | if (!NILP (filter)) |
7943 | { | |
7539e11f | 7944 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7945 | list2 (Qquote, def))); |
7946 | ||
b1ebcadb | 7947 | ASET (item_properties, ITEM_PROPERTY_DEF, def); |
e8886a1d RS |
7948 | } |
7949 | ||
e8886a1d | 7950 | /* Enable or disable selection of item. */ |
3626fb1a | 7951 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7952 | if (!EQ (tem, Qt)) |
7953 | { | |
7954 | if (notreal) | |
7955 | tem = Qt; | |
7956 | else | |
7957 | tem = menu_item_eval_property (tem); | |
7958 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7959 | return 0; /* Ignore disabled items in menu bar. */ |
b1ebcadb | 7960 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7961 | } |
7962 | ||
7189cad8 SM |
7963 | /* If we got no definition, this item is just unselectable text which |
7964 | is OK in a submenu but not in the menubar. */ | |
7965 | if (NILP (def)) | |
7966 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7967 | |
e8886a1d | 7968 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7969 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7970 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7971 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7972 | if (CONSP (tem)) |
e8886a1d | 7973 | { |
b1ebcadb SM |
7974 | ASET (item_properties, ITEM_PROPERTY_MAP, tem); |
7975 | ASET (item_properties, ITEM_PROPERTY_DEF, tem); | |
e8886a1d RS |
7976 | return 1; |
7977 | } | |
c60ee5e7 | 7978 | |
9ac425d1 RS |
7979 | /* At the top level in the menu bar, do likewise for commands also. |
7980 | The menu bar does not display equivalent key bindings anyway. | |
7981 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7982 | if (inmenubar > 0) | |
7983 | return 1; | |
e8886a1d RS |
7984 | |
7985 | /* This is a command. See if there is an equivalent key binding. */ | |
7986 | if (NILP (cachelist)) | |
7987 | { | |
74c1de23 | 7988 | /* We have to create a cachelist. */ |
e8886a1d | 7989 | CHECK_IMPURE (start); |
f3fbd155 | 7990 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7991 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7992 | newcache = 1; |
3626fb1a | 7993 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7994 | if (!NILP (keyhint)) |
7995 | { | |
f3fbd155 | 7996 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7997 | newcache = 0; |
7998 | } | |
7999 | else if (STRINGP (tem)) | |
8000 | { | |
f3fbd155 KR |
8001 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
8002 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
8003 | } |
8004 | } | |
c60ee5e7 | 8005 | |
7539e11f | 8006 | tem = XCAR (cachelist); |
74c1de23 RS |
8007 | if (!EQ (tem, Qt)) |
8008 | { | |
8009 | int chkcache = 0; | |
8010 | Lisp_Object prefix; | |
8011 | ||
8012 | if (!NILP (tem)) | |
b74e16a3 | 8013 | tem = Fkey_binding (tem, Qnil, Qnil, Qnil); |
74c1de23 | 8014 | |
3626fb1a | 8015 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
8016 | if (CONSP (prefix)) |
8017 | { | |
7539e11f KR |
8018 | def = XCAR (prefix); |
8019 | prefix = XCDR (prefix); | |
74c1de23 | 8020 | } |
e8886a1d | 8021 | else |
3626fb1a | 8022 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 8023 | |
9867523c | 8024 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
8025 | { |
8026 | if (newcache /* Always check first time. */ | |
8027 | /* Should we check everything when precomputing key | |
8028 | bindings? */ | |
74c1de23 RS |
8029 | /* If something had no key binding before, don't recheck it |
8030 | because that is too slow--except if we have a list of | |
8031 | rebound commands in Vdefine_key_rebound_commands, do | |
8032 | recheck any command that appears in that list. */ | |
8033 | || (CONSP (Vdefine_key_rebound_commands) | |
8034 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
8035 | chkcache = 1; | |
8036 | } | |
8037 | /* We had a saved key. Is it still bound to the command? */ | |
8038 | else if (NILP (tem) | |
03cee6ae GM |
8039 | || (!EQ (tem, def) |
8040 | /* If the command is an alias for another | |
8041 | (such as lmenu.el set it up), check if the | |
8042 | original command matches the cached command. */ | |
8043 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
8044 | chkcache = 1; /* Need to recompute key binding. */ |
8045 | ||
8046 | if (chkcache) | |
8047 | { | |
8048 | /* Recompute equivalent key binding. If the command is an alias | |
8049 | for another (such as lmenu.el set it up), see if the original | |
8050 | command name has equivalent keys. Otherwise look up the | |
8051 | specified command itself. We don't try both, because that | |
8052 | makes lmenu menus slow. */ | |
3626fb1a GM |
8053 | if (SYMBOLP (def) |
8054 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
8055 | && ! NILP (Fget (def, Qmenu_alias))) |
8056 | def = XSYMBOL (def)->function; | |
8b9940e6 | 8057 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 8058 | XSETCAR (cachelist, tem); |
74c1de23 RS |
8059 | if (NILP (tem)) |
8060 | { | |
f3fbd155 | 8061 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
8062 | chkcache = 0; |
8063 | } | |
8064 | } | |
7539e11f | 8065 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 8066 | { |
7539e11f | 8067 | tem = XCAR (cachelist); |
74c1de23 RS |
8068 | chkcache = 1; |
8069 | } | |
8070 | ||
8071 | newcache = chkcache; | |
8072 | if (chkcache) | |
8073 | { | |
a1bfe073 | 8074 | tem = Fkey_description (tem, Qnil); |
74c1de23 RS |
8075 | if (CONSP (prefix)) |
8076 | { | |
7539e11f KR |
8077 | if (STRINGP (XCAR (prefix))) |
8078 | tem = concat2 (XCAR (prefix), tem); | |
8079 | if (STRINGP (XCDR (prefix))) | |
8080 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 8081 | } |
f3fbd155 | 8082 | XSETCDR (cachelist, tem); |
74c1de23 RS |
8083 | } |
8084 | } | |
8085 | ||
7539e11f | 8086 | tem = XCDR (cachelist); |
74c1de23 | 8087 | if (newcache && !NILP (tem)) |
e8886a1d | 8088 | { |
ee2e9728 NR |
8089 | tem = concat2 (build_string (" "), tem); |
8090 | // tem = concat3 (build_string (" ("), tem, build_string (")")); | |
f3fbd155 | 8091 | XSETCDR (cachelist, tem); |
e8886a1d RS |
8092 | } |
8093 | ||
8094 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
8095 | if (notreal) | |
adc1d5c8 | 8096 | return 1; |
e8886a1d RS |
8097 | |
8098 | /* If we have an equivalent key binding, use that. */ | |
b1ebcadb | 8099 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
adc1d5c8 RS |
8100 | |
8101 | /* Include this when menu help is implemented. | |
8102 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
8103 | if (!(NILP (tem) || STRINGP (tem))) | |
8104 | { | |
8105 | tem = menu_item_eval_property (tem); | |
8106 | if (!STRINGP (tem)) | |
8107 | tem = Qnil; | |
8108 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
8109 | } | |
e8886a1d RS |
8110 | */ |
8111 | ||
c60ee5e7 | 8112 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 8113 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 8114 | if (!NILP (tem)) |
b1ebcadb SM |
8115 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
8116 | menu_item_eval_property (tem)); | |
e8886a1d | 8117 | |
e8886a1d RS |
8118 | return 1; |
8119 | } | |
7ee32cda GM |
8120 | |
8121 | ||
8122 | \f | |
8123 | /*********************************************************************** | |
8124 | Tool-bars | |
8125 | ***********************************************************************/ | |
8126 | ||
9ea173e8 | 8127 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 8128 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 8129 | in the vector. */ |
7ee32cda | 8130 | |
9ea173e8 | 8131 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 8132 | |
9ea173e8 GM |
8133 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
8134 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 8135 | |
9ea173e8 | 8136 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 8137 | |
9ea173e8 | 8138 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 8139 | |
9ea173e8 | 8140 | static int ntool_bar_items; |
7ee32cda | 8141 | |
cf0590c4 | 8142 | /* The symbols `tool-bar', `:image' and `:rtl'. */ |
7ee32cda | 8143 | |
9ea173e8 | 8144 | extern Lisp_Object Qtool_bar; |
7ee32cda | 8145 | Lisp_Object QCimage; |
cf0590c4 | 8146 | Lisp_Object Qrtl; |
7ee32cda GM |
8147 | |
8148 | /* Function prototypes. */ | |
8149 | ||
9ea173e8 | 8150 | static void init_tool_bar_items P_ ((Lisp_Object)); |
9c8c4d5b | 8151 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
9ea173e8 GM |
8152 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); |
8153 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
8154 | |
8155 | ||
9ea173e8 | 8156 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 8157 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 8158 | tool bar items found. */ |
7ee32cda GM |
8159 | |
8160 | Lisp_Object | |
9ea173e8 | 8161 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
8162 | Lisp_Object reuse; |
8163 | int *nitems; | |
8164 | { | |
8165 | Lisp_Object *maps; | |
8166 | int nmaps, i; | |
8167 | Lisp_Object oquit; | |
8168 | Lisp_Object *tmaps; | |
7ee32cda GM |
8169 | |
8170 | *nitems = 0; | |
8171 | ||
8172 | /* In order to build the menus, we need to call the keymap | |
8173 | accessors. They all call QUIT. But this function is called | |
8174 | during redisplay, during which a quit is fatal. So inhibit | |
8175 | quitting while building the menus. We do this instead of | |
8176 | specbind because (1) errors will clear it anyway and (2) this | |
8177 | avoids risk of specpdl overflow. */ | |
8178 | oquit = Vinhibit_quit; | |
8179 | Vinhibit_quit = Qt; | |
c60ee5e7 | 8180 | |
9ea173e8 GM |
8181 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
8182 | init_tool_bar_items (reuse); | |
7ee32cda GM |
8183 | |
8184 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
8185 | to process. */ | |
c60ee5e7 | 8186 | |
7ee32cda GM |
8187 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
8188 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8189 | { | |
8190 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8191 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
8192 | nmaps = 0; | |
8193 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8194 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8195 | if (!NILP (Voverriding_local_map)) | |
8196 | maps[nmaps++] = Voverriding_local_map; | |
8197 | } | |
8198 | else | |
8199 | { | |
fd646341 KS |
8200 | /* No, so use major and minor mode keymaps and keymap property. |
8201 | Note that tool-bar bindings in the local-map and keymap | |
8202 | properties may not work reliable, as they are only | |
8203 | recognized when the tool-bar (or mode-line) is updated, | |
8204 | which does not normally happen after every command. */ | |
8205 | Lisp_Object tem; | |
8206 | int nminor; | |
8207 | nminor = current_minor_maps (NULL, &tmaps); | |
8208 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
8209 | nmaps = 0; | |
8210 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
8211 | maps[nmaps++] = tem; | |
8212 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
8213 | nmaps += nminor; | |
8214 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
8215 | } |
8216 | ||
8217 | /* Add global keymap at the end. */ | |
8218 | maps[nmaps++] = current_global_map; | |
8219 | ||
8220 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 8221 | key `tool-bar'. */ |
7ee32cda GM |
8222 | for (i = nmaps - 1; i >= 0; --i) |
8223 | if (!NILP (maps[i])) | |
8224 | { | |
8225 | Lisp_Object keymap; | |
db785038 | 8226 | |
341a09cf | 8227 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 8228 | if (CONSP (keymap)) |
293bd733 | 8229 | map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1); |
7ee32cda GM |
8230 | } |
8231 | ||
8232 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
8233 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
8234 | return tool_bar_items_vector; | |
7ee32cda GM |
8235 | } |
8236 | ||
8237 | ||
8238 | /* Process the definition of KEY which is DEF. */ | |
8239 | ||
8240 | static void | |
9c8c4d5b | 8241 | process_tool_bar_item (key, def, data, args) |
293bd733 SM |
8242 | Lisp_Object key, def, data; |
8243 | void *args; | |
7ee32cda GM |
8244 | { |
8245 | int i; | |
8246 | extern Lisp_Object Qundefined; | |
8247 | struct gcpro gcpro1, gcpro2; | |
8248 | ||
9ea173e8 | 8249 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
8250 | eval. */ |
8251 | GCPRO2 (key, def); | |
8252 | ||
8253 | if (EQ (def, Qundefined)) | |
8254 | { | |
8255 | /* If a map has an explicit `undefined' as definition, | |
8256 | discard any previously made item. */ | |
9ea173e8 | 8257 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 8258 | { |
9ea173e8 | 8259 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 8260 | |
9ea173e8 | 8261 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 8262 | { |
9ea173e8 GM |
8263 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
8264 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
8265 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 8266 | * sizeof (Lisp_Object))); |
9ea173e8 | 8267 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
8268 | break; |
8269 | } | |
8270 | } | |
8271 | } | |
9ea173e8 GM |
8272 | else if (parse_tool_bar_item (key, def)) |
8273 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 8274 | more than one definition for the same key. */ |
9ea173e8 | 8275 | append_tool_bar_item (); |
7ee32cda GM |
8276 | |
8277 | UNGCPRO; | |
8278 | } | |
8279 | ||
8280 | ||
9ea173e8 GM |
8281 | /* Parse a tool bar item specification ITEM for key KEY and return the |
8282 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
8283 | invalid. |
8284 | ||
8285 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 8286 | |
7ee32cda GM |
8287 | CAPTION is the caption of the item, If it's not a string, it is |
8288 | evaluated to get a string. | |
c60ee5e7 | 8289 | |
9ea173e8 | 8290 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
8291 | as binding are currently ignored. |
8292 | ||
8293 | The following properties are recognized: | |
8294 | ||
8295 | - `:enable FORM'. | |
c60ee5e7 | 8296 | |
9ea173e8 GM |
8297 | FORM is evaluated and specifies whether the tool bar item is |
8298 | enabled or disabled. | |
c60ee5e7 | 8299 | |
7ee32cda | 8300 | - `:visible FORM' |
c60ee5e7 | 8301 | |
9ea173e8 | 8302 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 8303 | |
7ee32cda GM |
8304 | - `:filter FUNCTION' |
8305 | ||
8306 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
8307 | result is stored as the new binding. | |
c60ee5e7 | 8308 | |
7ee32cda GM |
8309 | - `:button (TYPE SELECTED)' |
8310 | ||
8311 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
8312 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 8313 | |
7ee32cda GM |
8314 | - `:image IMAGES' |
8315 | ||
8316 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 8317 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 8318 | |
7ee32cda | 8319 | - `:help HELP-STRING'. |
c60ee5e7 | 8320 | |
9ea173e8 | 8321 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
8322 | |
8323 | static int | |
9ea173e8 | 8324 | parse_tool_bar_item (key, item) |
7ee32cda GM |
8325 | Lisp_Object key, item; |
8326 | { | |
9ea173e8 GM |
8327 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
8328 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
8329 | |
8330 | Lisp_Object filter = Qnil; | |
8331 | Lisp_Object caption; | |
7ee32cda | 8332 | int i; |
7ee32cda | 8333 | |
8c907a56 GM |
8334 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
8335 | Rule out items that aren't lists, don't start with | |
8336 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
8337 | list. */ |
8338 | if (!CONSP (item) | |
8339 | || !EQ (XCAR (item), Qmenu_item) | |
8340 | || (item = XCDR (item), | |
8341 | !CONSP (item))) | |
8342 | return 0; | |
8343 | ||
9ea173e8 | 8344 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 8345 | defaults. */ |
9ea173e8 | 8346 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 8347 | { |
9ea173e8 | 8348 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
8349 | PROP (i) = Qnil; |
8350 | } | |
8351 | else | |
9ea173e8 GM |
8352 | tool_bar_item_properties |
8353 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 8354 | |
7ee32cda | 8355 | /* Set defaults. */ |
9ea173e8 GM |
8356 | PROP (TOOL_BAR_ITEM_KEY) = key; |
8357 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 8358 | |
7ee32cda GM |
8359 | /* Get the caption of the item. If the caption is not a string, |
8360 | evaluate it to get a string. If we don't get a string, skip this | |
8361 | item. */ | |
8362 | caption = XCAR (item); | |
8363 | if (!STRINGP (caption)) | |
8364 | { | |
8365 | caption = menu_item_eval_property (caption); | |
8366 | if (!STRINGP (caption)) | |
8367 | return 0; | |
8368 | } | |
9ea173e8 | 8369 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
8370 | |
8371 | /* Give up if rest following the caption is not a list. */ | |
8372 | item = XCDR (item); | |
8373 | if (!CONSP (item)) | |
8374 | return 0; | |
8375 | ||
8376 | /* Store the binding. */ | |
9ea173e8 | 8377 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
8378 | item = XCDR (item); |
8379 | ||
8c907a56 GM |
8380 | /* Ignore cached key binding, if any. */ |
8381 | if (CONSP (item) && CONSP (XCAR (item))) | |
8382 | item = XCDR (item); | |
8383 | ||
7ee32cda GM |
8384 | /* Process the rest of the properties. */ |
8385 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
8386 | { | |
8387 | Lisp_Object key, value; | |
8388 | ||
8389 | key = XCAR (item); | |
8390 | value = XCAR (XCDR (item)); | |
8391 | ||
8392 | if (EQ (key, QCenable)) | |
9d56e0da EZ |
8393 | { |
8394 | /* `:enable FORM'. */ | |
8395 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
8396 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
8397 | else | |
8398 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; | |
8399 | } | |
7ee32cda GM |
8400 | else if (EQ (key, QCvisible)) |
8401 | { | |
8402 | /* `:visible FORM'. If got a visible property and that | |
8403 | evaluates to nil then ignore this item. */ | |
8404 | if (NILP (menu_item_eval_property (value))) | |
8405 | return 0; | |
8406 | } | |
8407 | else if (EQ (key, QChelp)) | |
8408 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 8409 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
8410 | else if (EQ (key, QCfilter)) |
8411 | /* ':filter FORM'. */ | |
8412 | filter = value; | |
8413 | else if (EQ (key, QCbutton) && CONSP (value)) | |
8414 | { | |
8415 | /* `:button (TYPE . SELECTED)'. */ | |
8416 | Lisp_Object type, selected; | |
8417 | ||
8418 | type = XCAR (value); | |
8419 | selected = XCDR (value); | |
8420 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
8421 | { | |
9ea173e8 GM |
8422 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
8423 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
8424 | } |
8425 | } | |
8426 | else if (EQ (key, QCimage) | |
8427 | && (CONSP (value) | |
8428 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
8429 | /* Value is either a single image specification or a vector | |
27fd22dc | 8430 | of 4 such specifications for the different button states. */ |
9ea173e8 | 8431 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
cf0590c4 JD |
8432 | else if (EQ (key, Qrtl)) |
8433 | /* ':rtl STRING' */ | |
8434 | PROP (TOOL_BAR_ITEM_RTL_IMAGE) = value; | |
7ee32cda GM |
8435 | } |
8436 | ||
8437 | /* If got a filter apply it on binding. */ | |
8438 | if (!NILP (filter)) | |
9ea173e8 | 8439 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
8440 | = menu_item_eval_property (list2 (filter, |
8441 | list2 (Qquote, | |
9ea173e8 | 8442 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
8443 | |
8444 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 8445 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
8446 | return 0; |
8447 | ||
8448 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
8449 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
8450 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
8451 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 8452 | |
c60ee5e7 | 8453 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
8454 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
8455 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
8456 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
8457 | |
8458 | return 1; | |
c60ee5e7 | 8459 | |
7ee32cda GM |
8460 | #undef PROP |
8461 | } | |
8462 | ||
8463 | ||
9ea173e8 GM |
8464 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
8465 | that can be reused. */ | |
7ee32cda GM |
8466 | |
8467 | static void | |
9ea173e8 | 8468 | init_tool_bar_items (reuse) |
7ee32cda GM |
8469 | Lisp_Object reuse; |
8470 | { | |
8471 | if (VECTORP (reuse)) | |
9ea173e8 | 8472 | tool_bar_items_vector = reuse; |
7ee32cda | 8473 | else |
9ea173e8 GM |
8474 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
8475 | ntool_bar_items = 0; | |
7ee32cda GM |
8476 | } |
8477 | ||
8478 | ||
9ea173e8 GM |
8479 | /* Append parsed tool bar item properties from |
8480 | tool_bar_item_properties */ | |
7ee32cda GM |
8481 | |
8482 | static void | |
9ea173e8 | 8483 | append_tool_bar_item () |
7ee32cda GM |
8484 | { |
8485 | Lisp_Object *to, *from; | |
c60ee5e7 | 8486 | |
9ea173e8 GM |
8487 | /* Enlarge tool_bar_items_vector if necessary. */ |
8488 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
8489 | >= XVECTOR (tool_bar_items_vector)->size) | |
219ccf1b RS |
8490 | tool_bar_items_vector |
8491 | = larger_vector (tool_bar_items_vector, | |
8492 | 2 * XVECTOR (tool_bar_items_vector)->size, Qnil); | |
7ee32cda | 8493 | |
9ea173e8 GM |
8494 | /* Append entries from tool_bar_item_properties to the end of |
8495 | tool_bar_items_vector. */ | |
8496 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
8497 | from = XVECTOR (tool_bar_item_properties)->contents; | |
8498 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
8499 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
8500 | } |
8501 | ||
8502 | ||
8503 | ||
8504 | ||
e8886a1d | 8505 | \f |
dcc408a0 RS |
8506 | /* Read a character using menus based on maps in the array MAPS. |
8507 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
8508 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
8509 | |
8510 | PREV_EVENT is the previous input event, or nil if we are reading | |
8511 | the first event of a key sequence. | |
8512 | ||
83d68044 | 8513 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 8514 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 8515 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
8516 | |
8517 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 8518 | and the strings associated with various map elements. |
8150596a RS |
8519 | |
8520 | This can be done with X menus or with menus put in the minibuf. | |
8521 | These are done in different ways, depending on how the input will be read. | |
8522 | Menus using X are done after auto-saving in read-char, getting the input | |
8523 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
8524 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 8525 | |
7617111f | 8526 | static Lisp_Object |
8150596a | 8527 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
8528 | int nmaps; |
8529 | Lisp_Object *maps; | |
8530 | Lisp_Object prev_event; | |
8531 | int *used_mouse_menu; | |
284f4730 | 8532 | { |
7d6de002 | 8533 | int mapno; |
14e40288 | 8534 | register Lisp_Object name = Qnil; |
7d6de002 | 8535 | |
6569cc8d JB |
8536 | if (used_mouse_menu) |
8537 | *used_mouse_menu = 0; | |
284f4730 JB |
8538 | |
8539 | /* Use local over global Menu maps */ | |
8540 | ||
7d6de002 RS |
8541 | if (! menu_prompting) |
8542 | return Qnil; | |
8543 | ||
03361bcc RS |
8544 | /* Optionally disregard all but the global map. */ |
8545 | if (inhibit_local_menu_bar_menus) | |
8546 | { | |
8547 | maps += (nmaps - 1); | |
8548 | nmaps = 1; | |
8549 | } | |
8550 | ||
7d6de002 RS |
8551 | /* Get the menu name from the first map that has one (a prompt string). */ |
8552 | for (mapno = 0; mapno < nmaps; mapno++) | |
8553 | { | |
bdb7aa47 | 8554 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
8555 | if (!NILP (name)) |
8556 | break; | |
8557 | } | |
284f4730 | 8558 | |
7d6de002 | 8559 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 8560 | if (!STRINGP (name)) |
7d6de002 RS |
8561 | return Qnil; |
8562 | ||
1f5b1641 | 8563 | #ifdef HAVE_MENUS |
7d6de002 RS |
8564 | /* If we got to this point via a mouse click, |
8565 | use a real menu for mouse selection. */ | |
5a8d99e0 | 8566 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
8567 | && !EQ (XCAR (prev_event), Qmenu_bar) |
8568 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
8569 | { |
8570 | /* Display the menu and get the selection. */ | |
8571 | Lisp_Object *realmaps | |
8572 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
8573 | Lisp_Object value; | |
8574 | int nmaps1 = 0; | |
8575 | ||
8576 | /* Use the maps that are not nil. */ | |
8577 | for (mapno = 0; mapno < nmaps; mapno++) | |
8578 | if (!NILP (maps[mapno])) | |
8579 | realmaps[nmaps1++] = maps[mapno]; | |
8580 | ||
8581 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
8582 | if (CONSP (value)) |
8583 | { | |
68f297c5 RS |
8584 | Lisp_Object tem; |
8585 | ||
7539e11f | 8586 | record_menu_key (XCAR (value)); |
8eb4d8ef | 8587 | |
68f297c5 RS |
8588 | /* If we got multiple events, unread all but |
8589 | the first. | |
8590 | There is no way to prevent those unread events | |
8591 | from showing up later in last_nonmenu_event. | |
8592 | So turn symbol and integer events into lists, | |
8593 | to indicate that they came from a mouse menu, | |
8594 | so that when present in last_nonmenu_event | |
8595 | they won't confuse things. */ | |
9beb8baa | 8596 | for (tem = XCDR (value); CONSP (tem); tem = XCDR (tem)) |
8eb4d8ef | 8597 | { |
7539e11f KR |
8598 | record_menu_key (XCAR (tem)); |
8599 | if (SYMBOLP (XCAR (tem)) | |
8600 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8601 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8602 | } |
68f297c5 | 8603 | |
663258f2 JB |
8604 | /* If we got more than one event, put all but the first |
8605 | onto this list to be read later. | |
8606 | Return just the first event now. */ | |
24597608 | 8607 | Vunread_command_events |
7539e11f KR |
8608 | = nconc2 (XCDR (value), Vunread_command_events); |
8609 | value = XCAR (value); | |
663258f2 | 8610 | } |
1c90c381 | 8611 | else if (NILP (value)) |
dcc408a0 | 8612 | value = Qt; |
6569cc8d JB |
8613 | if (used_mouse_menu) |
8614 | *used_mouse_menu = 1; | |
7d6de002 RS |
8615 | return value; |
8616 | } | |
1f5b1641 | 8617 | #endif /* HAVE_MENUS */ |
8150596a RS |
8618 | return Qnil ; |
8619 | } | |
8620 | ||
af2b7cc9 KS |
8621 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8622 | We make this bigger when necessary, and never free it. */ | |
8623 | static char *read_char_minibuf_menu_text; | |
8624 | /* Size of that buffer. */ | |
8625 | static int read_char_minibuf_menu_width; | |
8626 | ||
8150596a | 8627 | static Lisp_Object |
24597608 | 8628 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8629 | int commandflag ; |
8630 | int nmaps; | |
8631 | Lisp_Object *maps; | |
8632 | { | |
8633 | int mapno; | |
8634 | register Lisp_Object name; | |
af2b7cc9 | 8635 | int nlength; |
14e40288 | 8636 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8637 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8638 | int idx = -1; |
af2b7cc9 | 8639 | int nobindings = 1; |
8150596a | 8640 | Lisp_Object rest, vector; |
af2b7cc9 | 8641 | char *menu; |
8150596a | 8642 | |
8c907a56 | 8643 | vector = Qnil; |
7189cad8 | 8644 | name = Qnil; |
8c907a56 | 8645 | |
8150596a RS |
8646 | if (! menu_prompting) |
8647 | return Qnil; | |
8648 | ||
af2b7cc9 KS |
8649 | /* Make sure we have a big enough buffer for the menu text. */ |
8650 | if (read_char_minibuf_menu_text == 0) | |
8651 | { | |
8652 | read_char_minibuf_menu_width = width + 4; | |
8653 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8654 | } | |
8655 | else if (width + 4 > read_char_minibuf_menu_width) | |
8656 | { | |
8657 | read_char_minibuf_menu_width = width + 4; | |
8658 | read_char_minibuf_menu_text | |
8659 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8660 | } | |
8661 | menu = read_char_minibuf_menu_text; | |
8662 | ||
8150596a RS |
8663 | /* Get the menu name from the first map that has one (a prompt string). */ |
8664 | for (mapno = 0; mapno < nmaps; mapno++) | |
8665 | { | |
bdb7aa47 | 8666 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
8667 | if (!NILP (name)) |
8668 | break; | |
8669 | } | |
8670 | ||
8671 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 8672 | if (!STRINGP (name)) |
8150596a | 8673 | return Qnil; |
284f4730 | 8674 | |
af2b7cc9 | 8675 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8676 | strcpy (menu, SDATA (name)); |
8677 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8678 | menu[nlength++] = ':'; |
8679 | menu[nlength++] = ' '; | |
8680 | menu[nlength] = 0; | |
8681 | ||
7d6de002 RS |
8682 | /* Start prompting at start of first map. */ |
8683 | mapno = 0; | |
8684 | rest = maps[mapno]; | |
284f4730 | 8685 | |
af2b7cc9 KS |
8686 | /* Present the documented bindings, a line at a time. */ |
8687 | while (1) | |
284f4730 | 8688 | { |
af2b7cc9 KS |
8689 | int notfirst = 0; |
8690 | int i = nlength; | |
8691 | Lisp_Object obj; | |
8692 | int ch; | |
8693 | Lisp_Object orig_defn_macro; | |
284f4730 | 8694 | |
af2b7cc9 KS |
8695 | /* Loop over elements of map. */ |
8696 | while (i < width) | |
284f4730 | 8697 | { |
af2b7cc9 | 8698 | Lisp_Object elt; |
284f4730 | 8699 | |
af2b7cc9 KS |
8700 | /* If reached end of map, start at beginning of next map. */ |
8701 | if (NILP (rest)) | |
8702 | { | |
8703 | mapno++; | |
8704 | /* At end of last map, wrap around to first map if just starting, | |
8705 | or end this line if already have something on it. */ | |
8706 | if (mapno == nmaps) | |
8707 | { | |
8708 | mapno = 0; | |
8709 | if (notfirst || nobindings) break; | |
8710 | } | |
8711 | rest = maps[mapno]; | |
8712 | } | |
7d6de002 | 8713 | |
af2b7cc9 KS |
8714 | /* Look at the next element of the map. */ |
8715 | if (idx >= 0) | |
8716 | elt = XVECTOR (vector)->contents[idx]; | |
8717 | else | |
8718 | elt = Fcar_safe (rest); | |
7d6de002 | 8719 | |
af2b7cc9 | 8720 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8721 | { |
af2b7cc9 KS |
8722 | /* If we found a dense table in the keymap, |
8723 | advanced past it, but start scanning its contents. */ | |
8724 | rest = Fcdr_safe (rest); | |
8725 | vector = elt; | |
8726 | idx = 0; | |
284f4730 | 8727 | } |
7d6de002 RS |
8728 | else |
8729 | { | |
af2b7cc9 KS |
8730 | /* An ordinary element. */ |
8731 | Lisp_Object event, tem; | |
7d6de002 | 8732 | |
af2b7cc9 KS |
8733 | if (idx < 0) |
8734 | { | |
8735 | event = Fcar_safe (elt); /* alist */ | |
8736 | elt = Fcdr_safe (elt); | |
8737 | } | |
8738 | else | |
8739 | { | |
8740 | XSETINT (event, idx); /* vector */ | |
8741 | } | |
284f4730 | 8742 | |
af2b7cc9 KS |
8743 | /* Ignore the element if it has no prompt string. */ |
8744 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8745 | { | |
8746 | /* 1 if the char to type matches the string. */ | |
8747 | int char_matches; | |
8748 | Lisp_Object upcased_event, downcased_event; | |
8749 | Lisp_Object desc = Qnil; | |
8750 | Lisp_Object s | |
8751 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8752 | ||
8753 | upcased_event = Fupcase (event); | |
8754 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8755 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8756 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8757 | if (! char_matches) |
8758 | desc = Fsingle_key_description (event, Qnil); | |
8759 | ||
8760 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8761 | the prefix is what the user has already typed. */ | |
8762 | tem | |
8763 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8764 | if (!NILP (tem)) | |
8765 | /* Insert equivalent keybinding. */ | |
8766 | s = concat2 (s, tem); | |
8767 | #endif | |
8768 | tem | |
8769 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8770 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8771 | { | |
8772 | /* Insert button prefix. */ | |
8773 | Lisp_Object selected | |
8774 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8775 | if (EQ (tem, QCradio)) | |
8776 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8777 | else | |
8778 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8779 | s = concat2 (tem, s); | |
8780 | } | |
c60ee5e7 | 8781 | |
af2b7cc9 KS |
8782 | |
8783 | /* If we have room for the prompt string, add it to this line. | |
8784 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8785 | if ((SCHARS (s) + i + 2 |
8786 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8787 | < width |
8788 | || !notfirst) | |
8789 | { | |
8790 | int thiswidth; | |
8791 | ||
8792 | /* Punctuate between strings. */ | |
8793 | if (notfirst) | |
8794 | { | |
8795 | strcpy (menu + i, ", "); | |
8796 | i += 2; | |
8797 | } | |
8798 | notfirst = 1; | |
8799 | nobindings = 0 ; | |
8800 | ||
8801 | /* If the char to type doesn't match the string's | |
8802 | first char, explicitly show what char to type. */ | |
8803 | if (! char_matches) | |
8804 | { | |
8805 | /* Add as much of string as fits. */ | |
d5db4077 | 8806 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8807 | if (thiswidth + i > width) |
8808 | thiswidth = width - i; | |
d5db4077 | 8809 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8810 | i += thiswidth; |
8811 | strcpy (menu + i, " = "); | |
8812 | i += 3; | |
8813 | } | |
8814 | ||
8815 | /* Add as much of string as fits. */ | |
d5db4077 | 8816 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8817 | if (thiswidth + i > width) |
8818 | thiswidth = width - i; | |
d5db4077 | 8819 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8820 | i += thiswidth; |
8821 | menu[i] = 0; | |
8822 | } | |
8823 | else | |
8824 | { | |
8825 | /* If this element does not fit, end the line now, | |
8826 | and save the element for the next line. */ | |
8827 | strcpy (menu + i, "..."); | |
8828 | break; | |
8829 | } | |
8830 | } | |
8831 | ||
8832 | /* Move past this element. */ | |
8833 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8834 | /* Handle reaching end of dense table. */ | |
8835 | idx = -1; | |
8836 | if (idx >= 0) | |
8837 | idx++; | |
8838 | else | |
8839 | rest = Fcdr_safe (rest); | |
8840 | } | |
325309f5 | 8841 | } |
8150596a | 8842 | |
af2b7cc9 | 8843 | /* Prompt with that and read response. */ |
c60ee5e7 | 8844 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8845 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8846 | |
af2b7cc9 KS |
8847 | /* Make believe its not a keyboard macro in case the help char |
8848 | is pressed. Help characters are not recorded because menu prompting | |
8849 | is not used on replay. | |
8850 | */ | |
8851 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8852 | current_kboard->defining_kbd_macro = Qnil; | |
8853 | do | |
179f689c | 8854 | obj = read_char (commandflag, 0, 0, Qt, 0, NULL); |
af2b7cc9 KS |
8855 | while (BUFFERP (obj)); |
8856 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8857 | |
af2b7cc9 KS |
8858 | if (!INTEGERP (obj)) |
8859 | return obj; | |
9688ff53 KL |
8860 | else if (XINT (obj) == -2) |
8861 | return obj; | |
af2b7cc9 KS |
8862 | else |
8863 | ch = XINT (obj); | |
8864 | ||
8865 | if (! EQ (obj, menu_prompt_more_char) | |
8866 | && (!INTEGERP (menu_prompt_more_char) | |
8867 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8868 | { | |
8869 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8870 | store_kbd_macro_char (obj); | |
8871 | return obj; | |
8872 | } | |
8873 | /* Help char - go round again */ | |
8874 | } | |
284f4730 | 8875 | } |
284f4730 JB |
8876 | \f |
8877 | /* Reading key sequences. */ | |
8878 | ||
8879 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8880 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8881 | keymap, or nil otherwise. Return the index of the first keymap in | |
8882 | which KEY has any binding, or NMAPS if no map has a binding. | |
8883 | ||
8884 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8885 | followed by the corresponding non-meta character. Keymaps in | |
8886 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8887 | NEXT. | |
8888 | ||
88cb0656 JB |
8889 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8890 | unmodified. | |
8891 | ||
569871d2 | 8892 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8893 | |
8894 | static int | |
4e50f26a | 8895 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8896 | Lisp_Object key; |
8897 | Lisp_Object *current, *defs, *next; | |
8898 | int nmaps; | |
8899 | { | |
8900 | int i, first_binding; | |
8901 | ||
284f4730 JB |
8902 | first_binding = nmaps; |
8903 | for (i = nmaps - 1; i >= 0; i--) | |
8904 | { | |
8905 | if (! NILP (current[i])) | |
8906 | { | |
fe5b94c5 | 8907 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8908 | if (! NILP (defs[i])) |
8909 | first_binding = i; | |
8910 | } | |
8911 | else | |
8912 | defs[i] = Qnil; | |
8913 | } | |
8914 | ||
284f4730 | 8915 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8916 | if (first_binding < nmaps) |
8917 | for (i = 0; i < nmaps; i++) | |
02067692 | 8918 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8919 | |
8920 | return first_binding; | |
8921 | } | |
8922 | ||
a7f26f28 SM |
8923 | /* Structure used to keep track of partial application of key remapping |
8924 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8925 | typedef struct keyremap | |
8926 | { | |
c2028ac6 RS |
8927 | /* This is the map originally specified for this use. */ |
8928 | Lisp_Object parent; | |
8929 | /* This is a submap reached by looking up, in PARENT, | |
8930 | the events from START to END. */ | |
8931 | Lisp_Object map; | |
8932 | /* Positions [START, END) in the key sequence buffer | |
8933 | are the key that we have scanned so far. | |
8934 | Those events are the ones that we will replace | |
8935 | if PAREHT maps them into a key sequence. */ | |
a7f26f28 SM |
8936 | int start, end; |
8937 | } keyremap; | |
8938 | ||
fe5b94c5 SM |
8939 | /* Lookup KEY in MAP. |
8940 | MAP is a keymap mapping keys to key vectors or functions. | |
8941 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8942 | the function is called with PROMPT as parameter and its return | |
8943 | value is used as the return value of this function (after checking | |
8944 | that it is indeed a vector). */ | |
8945 | ||
8946 | static Lisp_Object | |
8947 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8948 | Lisp_Object map, key, prompt; | |
8949 | int do_funcall; | |
8950 | { | |
8951 | Lisp_Object next; | |
6b61353c | 8952 | |
fe5b94c5 SM |
8953 | next = access_keymap (map, key, 1, 0, 1); |
8954 | ||
8955 | /* Handle symbol with autoload definition. */ | |
8956 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8957 | && CONSP (XSYMBOL (next)->function) | |
8958 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8959 | do_autoload (XSYMBOL (next)->function, next); | |
8960 | ||
8961 | /* Handle a symbol whose function definition is a keymap | |
8962 | or an array. */ | |
8963 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
592c0e80 | 8964 | && (ARRAYP (XSYMBOL (next)->function) |
fe5b94c5 SM |
8965 | || KEYMAPP (XSYMBOL (next)->function))) |
8966 | next = XSYMBOL (next)->function; | |
6b61353c | 8967 | |
fe5b94c5 SM |
8968 | /* If the keymap gives a function, not an |
8969 | array, then call the function with one arg and use | |
8970 | its value instead. */ | |
8971 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8972 | { | |
8973 | Lisp_Object tem; | |
8974 | tem = next; | |
8975 | ||
8976 | next = call1 (next, prompt); | |
8977 | /* If the function returned something invalid, | |
8978 | barf--don't ignore it. | |
8979 | (To ignore it safely, we would need to gcpro a bunch of | |
8980 | other variables.) */ | |
8981 | if (! (VECTORP (next) || STRINGP (next))) | |
8982 | error ("Function %s returns invalid key sequence", tem); | |
8983 | } | |
8984 | return next; | |
8985 | } | |
8986 | ||
8987 | /* Do one step of the key remapping used for function-key-map and | |
8988 | key-translation-map: | |
8989 | KEYBUF is the buffer holding the input events. | |
8990 | BUFSIZE is its maximum size. | |
8991 | FKEY is a pointer to the keyremap structure to use. | |
8992 | INPUT is the index of the last element in KEYBUF. | |
8993 | DOIT if non-zero says that the remapping can actually take place. | |
8994 | DIFF is used to return the number of keys added/removed by the remapping. | |
8995 | PARENT is the root of the keymap. | |
8996 | PROMPT is the prompt to use if the remapping happens through a function. | |
8997 | The return value is non-zero if the remapping actually took place. */ | |
8998 | ||
8999 | static int | |
24d80a06 SM |
9000 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
9001 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
9002 | keyremap *fkey; |
9003 | int input, doit, *diff, bufsize; | |
9004 | { | |
9005 | Lisp_Object next, key; | |
9006 | ||
9007 | key = keybuf[fkey->end++]; | |
c2028ac6 RS |
9008 | |
9009 | if (KEYMAPP (fkey->parent)) | |
9010 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
9011 | else | |
9012 | next = Qnil; | |
fe5b94c5 SM |
9013 | |
9014 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
9015 | map and we're in a position to do the key remapping, replace it with | |
9016 | the binding and restart with fkey->start at the end. */ | |
9017 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
9018 | { | |
9019 | int len = XFASTINT (Flength (next)); | |
9020 | int i; | |
9021 | ||
9022 | *diff = len - (fkey->end - fkey->start); | |
9023 | ||
9024 | if (input + *diff >= bufsize) | |
9025 | error ("Key sequence too long"); | |
9026 | ||
9027 | /* Shift the keys that follow fkey->end. */ | |
9028 | if (*diff < 0) | |
9029 | for (i = fkey->end; i < input; i++) | |
9030 | keybuf[i + *diff] = keybuf[i]; | |
9031 | else if (*diff > 0) | |
9032 | for (i = input - 1; i >= fkey->end; i--) | |
9033 | keybuf[i + *diff] = keybuf[i]; | |
9034 | /* Overwrite the old keys with the new ones. */ | |
9035 | for (i = 0; i < len; i++) | |
9036 | keybuf[fkey->start + i] | |
9037 | = Faref (next, make_number (i)); | |
9038 | ||
9039 | fkey->start = fkey->end += *diff; | |
24d80a06 | 9040 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9041 | |
9042 | return 1; | |
9043 | } | |
9044 | ||
9045 | fkey->map = get_keymap (next, 0, 1); | |
9046 | ||
9047 | /* If we no longer have a bound suffix, try a new position for | |
9048 | fkey->start. */ | |
9049 | if (!CONSP (fkey->map)) | |
9050 | { | |
9051 | fkey->end = ++fkey->start; | |
24d80a06 | 9052 | fkey->map = fkey->parent; |
fe5b94c5 SM |
9053 | } |
9054 | return 0; | |
9055 | } | |
a7f26f28 | 9056 | |
df0f2ba1 | 9057 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
9058 | storing it in KEYBUF, a buffer of size BUFSIZE. |
9059 | Prompt with PROMPT. | |
284f4730 | 9060 | Return the length of the key sequence stored. |
dcc408a0 | 9061 | Return -1 if the user rejected a command menu. |
284f4730 | 9062 | |
f4255cd1 JB |
9063 | Echo starting immediately unless `prompt' is 0. |
9064 | ||
9065 | Where a key sequence ends depends on the currently active keymaps. | |
9066 | These include any minor mode keymaps active in the current buffer, | |
9067 | the current buffer's local map, and the global map. | |
9068 | ||
9069 | If a key sequence has no other bindings, we check Vfunction_key_map | |
9070 | to see if some trailing subsequence might be the beginning of a | |
9071 | function key's sequence. If so, we try to read the whole function | |
9072 | key, and substitute its symbolic name into the key sequence. | |
9073 | ||
fbcd35bd JB |
9074 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
9075 | `double-' events into similar click events, if that would make them | |
9076 | bound. We try to turn `triple-' events first into `double-' events, | |
9077 | then into clicks. | |
f4255cd1 JB |
9078 | |
9079 | If we get a mouse click in a mode line, vertical divider, or other | |
9080 | non-text area, we treat the click as if it were prefixed by the | |
9081 | symbol denoting that area - `mode-line', `vertical-line', or | |
9082 | whatever. | |
9083 | ||
9084 | If the sequence starts with a mouse click, we read the key sequence | |
9085 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 9086 | |
f4255cd1 JB |
9087 | If the user switches frames in the midst of a key sequence, we put |
9088 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
9089 | read_char will return it. |
9090 | ||
9091 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
9092 | from the selected window's buffer. */ | |
48e416d4 | 9093 | |
284f4730 | 9094 | static int |
ce98e608 | 9095 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 9096 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
9097 | Lisp_Object *keybuf; |
9098 | int bufsize; | |
84d91fda | 9099 | Lisp_Object prompt; |
309b0fc8 | 9100 | int dont_downcase_last; |
ce98e608 | 9101 | int can_return_switch_frame; |
f571ae0d | 9102 | int fix_current_buffer; |
284f4730 | 9103 | { |
db14cfc5 | 9104 | volatile Lisp_Object from_string; |
aed13378 | 9105 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 9106 | |
284f4730 | 9107 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 9108 | volatile int t; |
284f4730 | 9109 | |
284f4730 JB |
9110 | /* The length of the echo buffer when we started reading, and |
9111 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
9112 | volatile int echo_start; |
9113 | volatile int keys_start; | |
284f4730 JB |
9114 | |
9115 | /* The number of keymaps we're scanning right now, and the number of | |
9116 | keymaps we have allocated space for. */ | |
8c907a56 GM |
9117 | volatile int nmaps; |
9118 | volatile int nmaps_allocated = 0; | |
284f4730 | 9119 | |
284f4730 JB |
9120 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
9121 | the current keymaps. */ | |
8c907a56 | 9122 | Lisp_Object *volatile defs = NULL; |
284f4730 | 9123 | |
f4255cd1 JB |
9124 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
9125 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 9126 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 9127 | |
e0dff5f6 | 9128 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 9129 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 9130 | |
30690496 DL |
9131 | /* The map from the `keymap' property to start out with at start of |
9132 | key sequence. */ | |
8c907a56 | 9133 | volatile Lisp_Object orig_keymap; |
30690496 | 9134 | |
e0dff5f6 RS |
9135 | /* 1 if we have already considered switching to the local-map property |
9136 | of the place where a mouse click occurred. */ | |
8c907a56 | 9137 | volatile int localized_local_map = 0; |
e0dff5f6 | 9138 | |
9de5eb68 | 9139 | /* The index in submaps[] of the first keymap that has a binding for |
f4255cd1 | 9140 | this key sequence. In other words, the lowest i such that |
9de5eb68 | 9141 | submaps[i] is non-nil. */ |
8c907a56 | 9142 | volatile int first_binding; |
7189cad8 | 9143 | /* Index of the first key that has no binding. |
a7f26f28 | 9144 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 9145 | volatile int first_unbound; |
284f4730 | 9146 | |
f4255cd1 | 9147 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
9148 | input key. |
9149 | ||
9150 | We use this to recover after recognizing a function key. Once we | |
9151 | realize that a suffix of the current key sequence is actually a | |
9152 | function key's escape sequence, we replace the suffix with the | |
9153 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
9154 | contains a new and different key sequence, so the echo area, |
9155 | this_command_keys, and the submaps and defs arrays are wrong. In | |
9156 | this situation, we set mock_input to t, set t to 0, and jump to | |
9157 | restart_sequence; the loop will read keys from keybuf up until | |
9158 | mock_input, thus rebuilding the state; and then it will resume | |
9159 | reading characters from the keyboard. */ | |
8c907a56 | 9160 | volatile int mock_input = 0; |
284f4730 | 9161 | |
253598e4 | 9162 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
9163 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
9164 | and fkey.map is its binding. | |
253598e4 | 9165 | |
f4255cd1 JB |
9166 | These might be > t, indicating that all function key scanning |
9167 | should hold off until t reaches them. We do this when we've just | |
9168 | recognized a function key, to avoid searching for the function | |
9169 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 9170 | volatile keyremap fkey; |
284f4730 | 9171 | |
4f4a84ec SM |
9172 | /* Likewise, for key_translation_map and input-decode-map. */ |
9173 | volatile keyremap keytran, indec; | |
a612e298 | 9174 | |
025ae953 CY |
9175 | /* Non-zero if we are trying to map a key by changing an upper-case |
9176 | letter to lower case, or a shifted function key to an unshifted | |
9177 | one. */ | |
9178 | volatile int shift_translated = 0; | |
9179 | ||
fe5b94c5 SM |
9180 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
9181 | a key sequence, we put it off for later. | |
9182 | While we're reading, we keep the event here. */ | |
8c907a56 | 9183 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 9184 | |
51763820 BF |
9185 | /* See the comment below... */ |
9186 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 9187 | Lisp_Object first_event; |
51763820 | 9188 | #endif |
4efda7dd | 9189 | |
8c907a56 GM |
9190 | volatile Lisp_Object original_uppercase; |
9191 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 9192 | |
bc536d84 | 9193 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 9194 | int dummyflag = 0; |
bc536d84 | 9195 | |
3b9189f8 RS |
9196 | struct buffer *starting_buffer; |
9197 | ||
2dc00208 GM |
9198 | /* List of events for which a fake prefix key has been generated. */ |
9199 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
9200 | ||
03cee6ae | 9201 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 9202 | int junk; |
03cee6ae | 9203 | #endif |
4efda7dd | 9204 | |
2dc00208 GM |
9205 | struct gcpro gcpro1; |
9206 | ||
9207 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
9208 | raw_keybuf_count = 0; |
9209 | ||
4efda7dd RS |
9210 | last_nonmenu_event = Qnil; |
9211 | ||
9212 | delayed_switch_frame = Qnil; | |
033b73e2 | 9213 | |
284f4730 JB |
9214 | if (INTERACTIVE) |
9215 | { | |
84d91fda | 9216 | if (!NILP (prompt)) |
a4ef85ee | 9217 | echo_prompt (prompt); |
f2647d04 DL |
9218 | else if (cursor_in_echo_area |
9219 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
9220 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
9221 | /* This doesn't put in a dash if the echo buffer is empty, so |
9222 | you don't always see a dash hanging out in the minibuffer. */ | |
9223 | echo_dash (); | |
284f4730 JB |
9224 | } |
9225 | ||
f4255cd1 JB |
9226 | /* Record the initial state of the echo area and this_command_keys; |
9227 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 9228 | if (INTERACTIVE) |
df0f2ba1 | 9229 | echo_start = echo_length (); |
f4255cd1 | 9230 | keys_start = this_command_key_count; |
6321824f | 9231 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 9232 | |
51763820 BF |
9233 | #if defined (GOBBLE_FIRST_EVENT) |
9234 | /* This doesn't quite work, because some of the things that read_char | |
9235 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 9236 | this work right. */ |
51763820 | 9237 | |
4efda7dd RS |
9238 | /* Read the first char of the sequence specially, before setting |
9239 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 9240 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
179f689c | 9241 | &junk, NULL); |
51763820 | 9242 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 9243 | |
24a40fbb GM |
9244 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9245 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 9246 | from_string = Qnil; |
e0dff5f6 | 9247 | |
3278f20e | 9248 | /* The multi-tty merge moved the code below to right after |
0923785f | 9249 | `replay_sequence' which caused all these translation maps to be applied |
3278f20e SM |
9250 | repeatedly, even tho their doc says very clearly they are not applied to |
9251 | their own output. | |
9252 | The reason for this move was: "We may switch keyboards between rescans, | |
9253 | so we need to reinitialize fkey and keytran before each replay". | |
9254 | This move was wrong (even if we switch keyboards, keybuf still holds the | |
9255 | keys we've read already from the original keyboard and some of those keys | |
9256 | may have already been translated). So there may still be a bug out there | |
9257 | lurking. */ | |
4f4a84ec | 9258 | indec.map = indec.parent = current_kboard->Vinput_decode_map; |
d6805803 | 9259 | fkey.map = fkey.parent = current_kboard->Vlocal_function_key_map; |
4f4a84ec SM |
9260 | keytran.map = keytran.parent = Vkey_translation_map; |
9261 | indec.start = indec.end = 0; | |
3f87f67e KL |
9262 | fkey.start = fkey.end = 0; |
9263 | keytran.start = keytran.end = 0; | |
d6805803 | 9264 | |
3278f20e SM |
9265 | /* We jump here when the key sequence has been thoroughly changed, and |
9266 | we need to rescan it starting from the beginning. When we jump here, | |
9267 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
9268 | replay_sequence: | |
9269 | ||
3b9189f8 | 9270 | starting_buffer = current_buffer; |
7189cad8 | 9271 | first_unbound = bufsize + 1; |
3b9189f8 | 9272 | |
f4255cd1 | 9273 | /* Build our list of keymaps. |
07d2b8de JB |
9274 | If we recognize a function key and replace its escape sequence in |
9275 | keybuf with its symbol, or if the sequence starts with a mouse | |
9276 | click and we need to switch buffers, we jump back here to rebuild | |
9277 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 9278 | nmaps = 0; |
284f4730 | 9279 | |
4c0240d2 | 9280 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
4cbedc16 | 9281 | { |
4c0240d2 | 9282 | if (2 > nmaps_allocated) |
4cbedc16 | 9283 | { |
4c0240d2 RS |
9284 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); |
9285 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9286 | nmaps_allocated = 2; | |
4cbedc16 | 9287 | } |
07024c43 | 9288 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; |
4c0240d2 RS |
9289 | } |
9290 | else if (!NILP (Voverriding_local_map)) | |
9291 | { | |
9292 | if (2 > nmaps_allocated) | |
9293 | { | |
9294 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); | |
9295 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9296 | nmaps_allocated = 2; | |
9297 | } | |
07024c43 | 9298 | submaps[nmaps++] = Voverriding_local_map; |
4cbedc16 RS |
9299 | } |
9300 | else | |
9301 | { | |
4cbedc16 RS |
9302 | int nminor; |
9303 | int total; | |
9304 | Lisp_Object *maps; | |
9305 | ||
9306 | nminor = current_minor_maps (0, &maps); | |
9307 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
9308 | ||
9309 | if (total > nmaps_allocated) | |
9310 | { | |
9311 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
9312 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
9313 | nmaps_allocated = total; | |
9314 | } | |
9315 | ||
9316 | if (!NILP (orig_keymap)) | |
9317 | submaps[nmaps++] = orig_keymap; | |
9318 | ||
7d1c4866 | 9319 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
9320 | nminor * sizeof (submaps[0])); |
9321 | ||
9322 | nmaps += nminor; | |
9323 | ||
9324 | submaps[nmaps++] = orig_local_map; | |
9325 | } | |
9326 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
9327 | |
9328 | /* Find an accurate initial value for first_binding. */ | |
9329 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 9330 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
9331 | break; |
9332 | ||
3b9189f8 | 9333 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
9334 | t = 0; |
9335 | ||
9336 | /* These are no-ops the first time through, but if we restart, they | |
9337 | revert the echo area and this_command_keys to their original state. */ | |
9338 | this_command_key_count = keys_start; | |
df0f2ba1 | 9339 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
9340 | echo_truncate (echo_start); |
9341 | ||
cca310da JB |
9342 | /* If the best binding for the current key sequence is a keymap, or |
9343 | we may be looking at a function key's escape sequence, keep on | |
9344 | reading. */ | |
a7f26f28 SM |
9345 | while (first_binding < nmaps |
9346 | /* Keep reading as long as there's a prefix binding. */ | |
9347 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
9348 | /* Don't return in the middle of a possible function key sequence, |
9349 | if the only bindings we found were via case conversion. | |
9350 | Thus, if ESC O a has a function-key-map translation | |
9351 | and ESC o has a binding, don't return after ESC O, | |
9352 | so that we can translate ESC O plus the next character. */ | |
4f4a84ec | 9353 | : (/* indec.start < t || fkey.start < t || */ keytran.start < t)) |
284f4730 JB |
9354 | { |
9355 | Lisp_Object key; | |
7d6de002 | 9356 | int used_mouse_menu = 0; |
284f4730 | 9357 | |
7b4aedb9 JB |
9358 | /* Where the last real key started. If we need to throw away a |
9359 | key that has expanded into more than one element of keybuf | |
9360 | (say, a mouse click on the mode line which is being treated | |
9361 | as [mode-line (mouse-...)], then we backtrack to this point | |
9362 | of keybuf. */ | |
8c907a56 | 9363 | volatile int last_real_key_start; |
7b4aedb9 | 9364 | |
0a7f1fc0 JB |
9365 | /* These variables are analogous to echo_start and keys_start; |
9366 | while those allow us to restart the entire key sequence, | |
9367 | echo_local_start and keys_local_start allow us to throw away | |
9368 | just one key. */ | |
8c907a56 | 9369 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 9370 | |
4f4a84ec SM |
9371 | eassert (indec.end == t || (indec.end > t && indec.end <= mock_input)); |
9372 | eassert (indec.start <= indec.end); | |
fe5b94c5 SM |
9373 | eassert (fkey.start <= fkey.end); |
9374 | eassert (keytran.start <= keytran.end); | |
4f4a84ec SM |
9375 | /* key-translation-map is applied *after* function-key-map |
9376 | which is itself applied *after* input-decode-map. */ | |
9377 | eassert (fkey.end <= indec.start); | |
a7f26f28 | 9378 | eassert (keytran.end <= fkey.start); |
7189cad8 | 9379 | |
4f4a84ec SM |
9380 | if (/* first_unbound < indec.start && first_unbound < fkey.start && */ |
9381 | first_unbound < keytran.start) | |
7189cad8 SM |
9382 | { /* The prefix upto first_unbound has no binding and has |
9383 | no translation left to do either, so we know it's unbound. | |
9384 | If we don't stop now, we risk staying here indefinitely | |
9385 | (if the user keeps entering fkey or keytran prefixes | |
9386 | like C-c ESC ESC ESC ESC ...) */ | |
9387 | int i; | |
9388 | for (i = first_unbound + 1; i < t; i++) | |
9389 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
9390 | mock_input = t - first_unbound - 1; | |
4f4a84ec SM |
9391 | indec.end = indec.start -= first_unbound + 1; |
9392 | indec.map = indec.parent; | |
a7f26f28 | 9393 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 9394 | fkey.map = fkey.parent; |
a7f26f28 | 9395 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 9396 | keytran.map = keytran.parent; |
7189cad8 SM |
9397 | goto replay_sequence; |
9398 | } | |
9399 | ||
284f4730 | 9400 | if (t >= bufsize) |
3fe8e9a2 | 9401 | error ("Key sequence too long"); |
284f4730 | 9402 | |
f4255cd1 JB |
9403 | if (INTERACTIVE) |
9404 | echo_local_start = echo_length (); | |
9405 | keys_local_start = this_command_key_count; | |
9406 | local_first_binding = first_binding; | |
df0f2ba1 | 9407 | |
f4255cd1 | 9408 | replay_key: |
0a7f1fc0 | 9409 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
9410 | jumped back up to replay_key; in that case, these restore the |
9411 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 9412 | loop. */ |
40932d1a | 9413 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 9414 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
9415 | this_command_key_count = keys_local_start; |
9416 | first_binding = local_first_binding; | |
9417 | ||
7e85b935 RS |
9418 | /* By default, assume each event is "real". */ |
9419 | last_real_key_start = t; | |
9420 | ||
f4255cd1 | 9421 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
9422 | if (t < mock_input) |
9423 | { | |
9424 | key = keybuf[t]; | |
9425 | add_command_key (key); | |
f2647d04 DL |
9426 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9427 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9428 | echo_char (key); |
284f4730 | 9429 | } |
253598e4 JB |
9430 | |
9431 | /* If not, we should actually read a character. */ | |
284f4730 JB |
9432 | else |
9433 | { | |
beecf6a1 | 9434 | { |
c5fdd383 KH |
9435 | #ifdef MULTI_KBOARD |
9436 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 9437 | struct frame *interrupted_frame = SELECTED_FRAME (); |
9688ff53 KL |
9438 | #endif |
9439 | key = read_char (NILP (prompt), nmaps, | |
9440 | (Lisp_Object *) submaps, last_nonmenu_event, | |
251bc578 | 9441 | &used_mouse_menu, NULL); |
9688ff53 KL |
9442 | #ifdef MULTI_KBOARD |
9443 | if (INTEGERP (key) && XINT (key) == -2) /* wrong_kboard_jmpbuf */ | |
beecf6a1 | 9444 | { |
e079ecf4 KL |
9445 | int found = 0; |
9446 | struct kboard *k; | |
b3e6f69c | 9447 | |
e079ecf4 KL |
9448 | for (k = all_kboards; k; k = k->next_kboard) |
9449 | if (k == interrupted_kboard) | |
9450 | found = 1; | |
9451 | ||
9452 | if (!found) | |
9453 | { | |
9454 | /* Don't touch interrupted_kboard when it's been | |
9455 | deleted. */ | |
9456 | delayed_switch_frame = Qnil; | |
9457 | goto replay_sequence; | |
9458 | } | |
b3e6f69c | 9459 | |
5798cf15 KH |
9460 | if (!NILP (delayed_switch_frame)) |
9461 | { | |
c5fdd383 | 9462 | interrupted_kboard->kbd_queue |
5798cf15 | 9463 | = Fcons (delayed_switch_frame, |
c5fdd383 | 9464 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
9465 | delayed_switch_frame = Qnil; |
9466 | } | |
e079ecf4 | 9467 | |
beecf6a1 | 9468 | while (t > 0) |
c5fdd383 KH |
9469 | interrupted_kboard->kbd_queue |
9470 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
9471 | |
9472 | /* If the side queue is non-empty, ensure it begins with a | |
9473 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 9474 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 9475 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
9476 | !(EVENT_HAS_PARAMETERS (key) |
9477 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
9478 | Qswitch_frame)))) | |
df0f2ba1 KH |
9479 | { |
9480 | Lisp_Object frame; | |
9481 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 9482 | interrupted_kboard->kbd_queue |
df0f2ba1 | 9483 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 9484 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 9485 | } |
beecf6a1 | 9486 | mock_input = 0; |
24a40fbb GM |
9487 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9488 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
9489 | goto replay_sequence; |
9490 | } | |
bded54dd | 9491 | #endif |
beecf6a1 | 9492 | } |
284f4730 | 9493 | |
dcc408a0 RS |
9494 | /* read_char returns t when it shows a menu and the user rejects it. |
9495 | Just return -1. */ | |
9496 | if (EQ (key, Qt)) | |
7d18f9ae RS |
9497 | { |
9498 | unbind_to (count, Qnil); | |
2dc00208 | 9499 | UNGCPRO; |
7d18f9ae RS |
9500 | return -1; |
9501 | } | |
dcc408a0 | 9502 | |
f4255cd1 | 9503 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
9504 | Emacs 18 handles this by returning immediately with a |
9505 | zero, so that's what we'll do. */ | |
8c18cbfb | 9506 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 9507 | { |
f4255cd1 | 9508 | t = 0; |
bc536d84 RS |
9509 | /* The Microsoft C compiler can't handle the goto that |
9510 | would go here. */ | |
309b0fc8 | 9511 | dummyflag = 1; |
bc536d84 | 9512 | break; |
cd21b839 | 9513 | } |
df0f2ba1 | 9514 | |
3cb81011 KH |
9515 | /* If the current buffer has been changed from under us, the |
9516 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 9517 | if (BUFFERP (key)) |
3cb81011 | 9518 | { |
5c12e63f | 9519 | timer_resume_idle (); |
3021d3a9 | 9520 | |
3cb81011 | 9521 | mock_input = t; |
f571ae0d RS |
9522 | /* Reset the current buffer from the selected window |
9523 | in case something changed the former and not the latter. | |
9524 | This is to be more consistent with the behavior | |
9525 | of the command_loop_1. */ | |
9526 | if (fix_current_buffer) | |
a94a4335 | 9527 | { |
788f89eb | 9528 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
9529 | Fkill_emacs (Qnil); |
9530 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
9531 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
9532 | } | |
f571ae0d | 9533 | |
24a40fbb GM |
9534 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9535 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
9536 | goto replay_sequence; |
9537 | } | |
9538 | ||
3b9189f8 RS |
9539 | /* If we have a quit that was typed in another frame, and |
9540 | quit_throw_to_read_char switched buffers, | |
9541 | replay to get the right keymap. */ | |
f4e05d97 GM |
9542 | if (INTEGERP (key) |
9543 | && XINT (key) == quit_char | |
9544 | && current_buffer != starting_buffer) | |
3b9189f8 | 9545 | { |
7d18f9ae RS |
9546 | GROW_RAW_KEYBUF; |
9547 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
9548 | keybuf[t++] = key; |
9549 | mock_input = t; | |
9550 | Vquit_flag = Qnil; | |
24a40fbb GM |
9551 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9552 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
9553 | goto replay_sequence; |
9554 | } | |
3cb81011 | 9555 | |
284f4730 | 9556 | Vquit_flag = Qnil; |
7d18f9ae RS |
9557 | |
9558 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 9559 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
9560 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
9561 | { | |
9562 | /* If we're at the beginning of a key sequence, and the caller | |
9563 | says it's okay, go ahead and return this event. If we're | |
9564 | in the midst of a key sequence, delay it until the end. */ | |
9565 | if (t > 0 || !can_return_switch_frame) | |
9566 | { | |
9567 | delayed_switch_frame = key; | |
9568 | goto replay_key; | |
9569 | } | |
9570 | } | |
9571 | ||
9572 | GROW_RAW_KEYBUF; | |
4ed4b975 JB |
9573 | ASET (raw_keybuf, raw_keybuf_count, key); |
9574 | raw_keybuf_count++; | |
7e85b935 | 9575 | } |
284f4730 | 9576 | |
df0f2ba1 | 9577 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
9578 | in their CHAR-ADDRESS field. For example, a click on |
9579 | the mode line is prefixed by the symbol `mode-line'. | |
9580 | ||
9581 | Furthermore, key sequences beginning with mouse clicks | |
9582 | are read using the keymaps of the buffer clicked on, not | |
9583 | the current buffer. So we may have to switch the buffer | |
9584 | here. | |
9585 | ||
9586 | When we turn one event into two events, we must make sure | |
9587 | that neither of the two looks like the original--so that, | |
9588 | if we replay the events, they won't be expanded again. | |
9589 | If not for this, such reexpansion could happen either here | |
9590 | or when user programs play with this-command-keys. */ | |
9591 | if (EVENT_HAS_PARAMETERS (key)) | |
9592 | { | |
9b8eb840 | 9593 | Lisp_Object kind; |
6b61353c | 9594 | Lisp_Object string; |
cca310da | 9595 | |
9b8eb840 | 9596 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 9597 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 9598 | { |
9b8eb840 | 9599 | Lisp_Object window, posn; |
f4255cd1 | 9600 | |
4ed4b975 | 9601 | window = POSN_WINDOW (EVENT_START (key)); |
6b61353c | 9602 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 9603 | |
2cf066c3 GM |
9604 | if (CONSP (posn) |
9605 | || (!NILP (fake_prefixed_keys) | |
9606 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 9607 | { |
2cf066c3 GM |
9608 | /* We're looking a second time at an event for which |
9609 | we generated a fake prefix key. Set | |
7e85b935 RS |
9610 | last_real_key_start appropriately. */ |
9611 | if (t > 0) | |
9612 | last_real_key_start = t - 1; | |
cd21b839 | 9613 | } |
7e85b935 RS |
9614 | |
9615 | /* Key sequences beginning with mouse clicks are | |
9616 | read using the keymaps in the buffer clicked on, | |
9617 | not the current buffer. If we're at the | |
9618 | beginning of a key sequence, switch buffers. */ | |
9619 | if (last_real_key_start == 0 | |
8c18cbfb KH |
9620 | && WINDOWP (window) |
9621 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 9622 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 9623 | { |
7d18f9ae | 9624 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
9625 | keybuf[t] = key; |
9626 | mock_input = t + 1; | |
9627 | ||
9628 | /* Arrange to go back to the original buffer once we're | |
9629 | done reading the key sequence. Note that we can't | |
9630 | use save_excursion_{save,restore} here, because they | |
9631 | save point as well as the current buffer; we don't | |
9632 | want to save point, because redisplay may change it, | |
9633 | to accommodate a Fset_window_start or something. We | |
9634 | don't want to do this at the top of the function, | |
9635 | because we may get input from a subprocess which | |
9636 | wants to change the selected window and stuff (say, | |
9637 | emacsclient). */ | |
9638 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
9639 | ||
788f89eb | 9640 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 9641 | Fkill_emacs (Qnil); |
24a40fbb | 9642 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 9643 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
9644 | Qlocal_map); |
9645 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 9646 | goto replay_sequence; |
0a7f1fc0 | 9647 | } |
c60ee5e7 | 9648 | |
e0dff5f6 RS |
9649 | /* For a mouse click, get the local text-property keymap |
9650 | of the place clicked on, rather than point. */ | |
7ee32cda | 9651 | if (last_real_key_start == 0 |
7539e11f | 9652 | && CONSP (XCDR (key)) |
e0dff5f6 | 9653 | && ! localized_local_map) |
5ec75a55 | 9654 | { |
e0dff5f6 RS |
9655 | Lisp_Object map_here, start, pos; |
9656 | ||
9657 | localized_local_map = 1; | |
9658 | start = EVENT_START (key); | |
c60ee5e7 | 9659 | |
6b61353c | 9660 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
9661 | { |
9662 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb | 9663 | if (INTEGERP (pos) |
602ae44c CY |
9664 | && XINT (pos) >= BEGV |
9665 | && XINT (pos) <= ZV) | |
e0dff5f6 | 9666 | { |
30690496 | 9667 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9668 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9669 | if (!EQ (map_here, orig_local_map)) |
9670 | { | |
9671 | orig_local_map = map_here; | |
b74e16a3 | 9672 | ++localized_local_map; |
30690496 | 9673 | } |
b74e16a3 | 9674 | |
30690496 | 9675 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9676 | current_buffer, Qkeymap); |
30690496 DL |
9677 | if (!EQ (map_here, orig_keymap)) |
9678 | { | |
9679 | orig_keymap = map_here; | |
b74e16a3 DK |
9680 | ++localized_local_map; |
9681 | } | |
9682 | ||
9683 | if (localized_local_map > 1) | |
9684 | { | |
30690496 DL |
9685 | keybuf[t] = key; |
9686 | mock_input = t + 1; | |
9687 | ||
e0dff5f6 RS |
9688 | goto replay_sequence; |
9689 | } | |
9690 | } | |
9691 | } | |
9692 | } | |
9693 | ||
9694 | /* Expand mode-line and scroll-bar events into two events: | |
9695 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9696 | if (SYMBOLP (posn) |
9697 | && (NILP (fake_prefixed_keys) | |
9698 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9699 | { |
7e85b935 | 9700 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9701 | error ("Key sequence too long"); |
c60ee5e7 | 9702 | |
2dc00208 GM |
9703 | keybuf[t] = posn; |
9704 | keybuf[t + 1] = key; | |
9705 | mock_input = t + 2; | |
9706 | ||
9707 | /* Record that a fake prefix key has been generated | |
9708 | for KEY. Don't modify the event; this would | |
9709 | prevent proper action when the event is pushed | |
c7f4f573 | 9710 | back into unread-command-events. */ |
2dc00208 | 9711 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9712 | |
9713 | /* If on a mode line string with a local keymap, | |
9714 | reconsider the key sequence with that keymap. */ | |
6b61353c KH |
9715 | if (string = POSN_STRING (EVENT_START (key)), |
9716 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9717 | { |
6b61353c | 9718 | Lisp_Object pos, map, map2; |
7ee32cda | 9719 | |
7ee32cda GM |
9720 | pos = XCDR (string); |
9721 | string = XCAR (string); | |
52e386c2 | 9722 | if (XINT (pos) >= 0 |
d5db4077 | 9723 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9724 | { |
9725 | map = Fget_text_property (pos, Qlocal_map, string); | |
9726 | if (!NILP (map)) | |
9727 | orig_local_map = map; | |
9728 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9729 | if (!NILP (map2)) | |
9730 | orig_keymap = map2; | |
9731 | if (!NILP (map) || !NILP (map2)) | |
9732 | goto replay_sequence; | |
9733 | } | |
7ee32cda GM |
9734 | } |
9735 | ||
7e85b935 | 9736 | goto replay_key; |
5ec75a55 | 9737 | } |
6b61353c KH |
9738 | else if (NILP (from_string) |
9739 | && (string = POSN_STRING (EVENT_START (key)), | |
9740 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9741 | { |
9742 | /* For a click on a string, i.e. overlay string or a | |
9743 | string displayed via the `display' property, | |
9744 | consider `local-map' and `keymap' properties of | |
9745 | that string. */ | |
6b61353c | 9746 | Lisp_Object pos, map, map2; |
db14cfc5 | 9747 | |
db14cfc5 GM |
9748 | pos = XCDR (string); |
9749 | string = XCAR (string); | |
9750 | if (XINT (pos) >= 0 | |
d5db4077 | 9751 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9752 | { |
9753 | map = Fget_text_property (pos, Qlocal_map, string); | |
9754 | if (!NILP (map)) | |
9755 | orig_local_map = map; | |
9756 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9757 | if (!NILP (map2)) | |
9758 | orig_keymap = map2; | |
9759 | ||
9760 | if (!NILP (map) || !NILP (map2)) | |
9761 | { | |
9762 | from_string = string; | |
32949266 CY |
9763 | keybuf[t++] = key; |
9764 | mock_input = t; | |
db14cfc5 GM |
9765 | goto replay_sequence; |
9766 | } | |
9767 | } | |
9768 | } | |
0a7f1fc0 | 9769 | } |
7539e11f | 9770 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9771 | && CONSP (EVENT_START (key)) |
7539e11f | 9772 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9773 | { |
9b8eb840 | 9774 | Lisp_Object posn; |
7e85b935 | 9775 | |
6b61353c | 9776 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9777 | /* Handle menu-bar events: |
9778 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9779 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9780 | { |
9781 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9782 | error ("Key sequence too long"); |
7e85b935 RS |
9783 | keybuf[t] = posn; |
9784 | keybuf[t+1] = key; | |
9785 | ||
9786 | /* Zap the position in key, so we know that we've | |
9787 | expanded it, and don't try to do so again. */ | |
6b61353c KH |
9788 | POSN_SET_POSN (EVENT_START (key), |
9789 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9790 | |
9791 | mock_input = t + 2; | |
9792 | goto replay_sequence; | |
9793 | } | |
8c18cbfb | 9794 | else if (CONSP (posn)) |
7e85b935 RS |
9795 | { |
9796 | /* We're looking at the second event of a | |
9797 | sequence which we expanded before. Set | |
9798 | last_real_key_start appropriately. */ | |
9799 | if (last_real_key_start == t && t > 0) | |
9800 | last_real_key_start = t - 1; | |
9801 | } | |
a6d53864 | 9802 | } |
284f4730 | 9803 | } |
f4255cd1 JB |
9804 | |
9805 | /* We have finally decided that KEY is something we might want | |
9806 | to look up. */ | |
284f4730 JB |
9807 | first_binding = (follow_key (key, |
9808 | nmaps - first_binding, | |
253598e4 | 9809 | submaps + first_binding, |
284f4730 | 9810 | defs + first_binding, |
4e50f26a | 9811 | submaps + first_binding) |
284f4730 | 9812 | + first_binding); |
0a7f1fc0 | 9813 | |
f4255cd1 | 9814 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9815 | if (first_binding < nmaps) |
9816 | /* This is needed for the following scenario: | |
9817 | event 0: a down-event that gets dropped by calling replay_key. | |
9818 | event 1: some normal prefix like C-h. | |
4f4a84ec SM |
9819 | After event 0, first_unbound is 0, after event 1 indec.start, |
9820 | fkey.start, and keytran.start are all 1, so when we see that | |
9821 | C-h is bound, we need to update first_unbound. */ | |
65e0fbbf SM |
9822 | first_unbound = max (t + 1, first_unbound); |
9823 | else | |
0a7f1fc0 | 9824 | { |
9b8eb840 | 9825 | Lisp_Object head; |
c60ee5e7 | 9826 | |
4f4a84ec | 9827 | /* Remember the position to put an upper bound on indec.start. */ |
7189cad8 | 9828 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9829 | |
9b8eb840 | 9830 | head = EVENT_HEAD (key); |
24736fbc | 9831 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9832 | { |
9833 | read_key_sequence_cmd = Vprefix_help_command; | |
9834 | keybuf[t++] = key; | |
9835 | last_nonmenu_event = key; | |
bc536d84 RS |
9836 | /* The Microsoft C compiler can't handle the goto that |
9837 | would go here. */ | |
309b0fc8 | 9838 | dummyflag = 1; |
0d882d52 | 9839 | break; |
7e85b935 RS |
9840 | } |
9841 | ||
8c18cbfb | 9842 | if (SYMBOLP (head)) |
0a7f1fc0 | 9843 | { |
9b8eb840 KH |
9844 | Lisp_Object breakdown; |
9845 | int modifiers; | |
0a7f1fc0 | 9846 | |
9b8eb840 | 9847 | breakdown = parse_modifiers (head); |
7539e11f | 9848 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9849 | /* Attempt to reduce an unbound mouse event to a simpler |
9850 | event that is bound: | |
9851 | Drags reduce to clicks. | |
9852 | Double-clicks reduce to clicks. | |
9853 | Triple-clicks reduce to double-clicks, then to clicks. | |
9854 | Down-clicks are eliminated. | |
9855 | Double-downs reduce to downs, then are eliminated. | |
9856 | Triple-downs reduce to double-downs, then to downs, | |
9857 | then are eliminated. */ | |
9858 | if (modifiers & (down_modifier | drag_modifier | |
9859 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9860 | { |
559f9d04 RS |
9861 | while (modifiers & (down_modifier | drag_modifier |
9862 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9863 | { |
9864 | Lisp_Object new_head, new_click; | |
9865 | if (modifiers & triple_modifier) | |
9866 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9867 | else if (modifiers & double_modifier) |
9868 | modifiers &= ~double_modifier; | |
9869 | else if (modifiers & drag_modifier) | |
9870 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9871 | else |
9872 | { | |
9873 | /* Dispose of this `down' event by simply jumping | |
9874 | back to replay_key, to get another event. | |
9875 | ||
9876 | Note that if this event came from mock input, | |
9877 | then just jumping back to replay_key will just | |
9878 | hand it to us again. So we have to wipe out any | |
9879 | mock input. | |
9880 | ||
9881 | We could delete keybuf[t] and shift everything | |
9882 | after that to the left by one spot, but we'd also | |
9883 | have to fix up any variable that points into | |
9884 | keybuf, and shifting isn't really necessary | |
9885 | anyway. | |
9886 | ||
9887 | Adding prefixes for non-textual mouse clicks | |
9888 | creates two characters of mock input, and both | |
9889 | must be thrown away. If we're only looking at | |
9890 | the prefix now, we can just jump back to | |
9891 | replay_key. On the other hand, if we've already | |
9892 | processed the prefix, and now the actual click | |
9893 | itself is giving us trouble, then we've lost the | |
9894 | state of the keymaps we want to backtrack to, and | |
9895 | we need to replay the whole sequence to rebuild | |
9896 | it. | |
9897 | ||
9898 | Beyond that, only function key expansion could | |
9899 | create more than two keys, but that should never | |
9900 | generate mouse events, so it's okay to zero | |
9901 | mock_input in that case too. | |
9902 | ||
65e0fbbf SM |
9903 | FIXME: The above paragraph seems just plain |
9904 | wrong, if you consider things like | |
9905 | xterm-mouse-mode. -stef | |
9906 | ||
559f9d04 | 9907 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9908 | |
9909 | /* If mock_input > t + 1, the above simplification | |
9910 | will actually end up dropping keys on the floor. | |
9911 | This is probably OK for now, but even | |
4f4a84ec SM |
9912 | if mock_input <= t + 1, we need to adjust indec, |
9913 | fkey, and keytran. | |
017be6c7 SM |
9914 | Typical case [header-line down-mouse-N]: |
9915 | mock_input = 2, t = 1, fkey.end = 1, | |
9916 | last_real_key_start = 0. */ | |
4f4a84ec | 9917 | if (indec.end > last_real_key_start) |
017be6c7 | 9918 | { |
4f4a84ec SM |
9919 | indec.end = indec.start |
9920 | = min (last_real_key_start, indec.start); | |
9921 | indec.map = indec.parent; | |
9922 | if (fkey.end > last_real_key_start) | |
017be6c7 | 9923 | { |
4f4a84ec SM |
9924 | fkey.end = fkey.start |
9925 | = min (last_real_key_start, fkey.start); | |
9926 | fkey.map = fkey.parent; | |
9927 | if (keytran.end > last_real_key_start) | |
9928 | { | |
9929 | keytran.end = keytran.start | |
9930 | = min (last_real_key_start, keytran.start); | |
9931 | keytran.map = keytran.parent; | |
9932 | } | |
017be6c7 SM |
9933 | } |
9934 | } | |
559f9d04 RS |
9935 | if (t == last_real_key_start) |
9936 | { | |
9937 | mock_input = 0; | |
9938 | goto replay_key; | |
9939 | } | |
9940 | else | |
9941 | { | |
9942 | mock_input = last_real_key_start; | |
9943 | goto replay_sequence; | |
9944 | } | |
9945 | } | |
9946 | ||
27203ead | 9947 | new_head |
7539e11f | 9948 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9949 | new_click |
9950 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9951 | |
9952 | /* Look for a binding for this new key. follow_key | |
9953 | promises that it didn't munge submaps the | |
9954 | last time we called it, since key was unbound. */ | |
27203ead RS |
9955 | first_binding |
9956 | = (follow_key (new_click, | |
9957 | nmaps - local_first_binding, | |
9958 | submaps + local_first_binding, | |
9959 | defs + local_first_binding, | |
4e50f26a | 9960 | submaps + local_first_binding) |
27203ead | 9961 | + local_first_binding); |
fbcd35bd JB |
9962 | |
9963 | /* If that click is bound, go for it. */ | |
9964 | if (first_binding < nmaps) | |
9965 | { | |
9966 | key = new_click; | |
9967 | break; | |
9968 | } | |
9969 | /* Otherwise, we'll leave key set to the drag event. */ | |
9970 | } | |
0a7f1fc0 JB |
9971 | } |
9972 | } | |
9973 | } | |
9974 | ||
284f4730 | 9975 | keybuf[t++] = key; |
7d6de002 RS |
9976 | /* Normally, last_nonmenu_event gets the previous key we read. |
9977 | But when a mouse popup menu is being used, | |
9978 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9979 | event that preceded the first level of menu. */ | |
9980 | if (!used_mouse_menu) | |
9981 | last_nonmenu_event = key; | |
284f4730 | 9982 | |
6321824f RS |
9983 | /* Record what part of this_command_keys is the current key sequence. */ |
9984 | this_single_command_key_start = this_command_key_count - t; | |
9985 | ||
4f4a84ec SM |
9986 | /* Look for this sequence in input-decode-map. |
9987 | Scan from indec.end until we find a bound suffix. */ | |
9988 | while (indec.end < t) | |
9989 | { | |
9990 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9991 | int done, diff; | |
9992 | ||
9993 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); | |
9994 | done = keyremap_step (keybuf, bufsize, &indec, max (t, mock_input), | |
9995 | 1, &diff, prompt); | |
9996 | UNGCPRO; | |
9997 | if (done) | |
9998 | { | |
9999 | mock_input = diff + max (t, mock_input); | |
10000 | goto replay_sequence; | |
10001 | } | |
10002 | } | |
10003 | ||
10004 | if (first_binding < nmaps && NILP (submaps[first_binding]) | |
10005 | && indec.start >= t) | |
65e0fbbf | 10006 | /* There is a binding and it's not a prefix. |
4f4a84ec | 10007 | (and it doesn't have any input-decode-map translation pending). |
65e0fbbf SM |
10008 | There is thus no function-key in this sequence. |
10009 | Moving fkey.start is important in this case to allow keytran.start | |
10010 | to go over the sequence before we return (since we keep the | |
10011 | invariant that keytran.end <= fkey.start). */ | |
10012 | { | |
a7f26f28 | 10013 | if (fkey.start < t) |
24d80a06 | 10014 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
10015 | } |
10016 | else | |
10017 | /* If the sequence is unbound, see if we can hang a function key | |
10018 | off the end of it. */ | |
fe5b94c5 | 10019 | /* Continue scan from fkey.end until we find a bound suffix. */ |
4f4a84ec | 10020 | while (fkey.end < indec.start) |
a612e298 | 10021 | { |
4f4a84ec | 10022 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 SM |
10023 | int done, diff; |
10024 | ||
4f4a84ec | 10025 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 SM |
10026 | done = keyremap_step (keybuf, bufsize, &fkey, |
10027 | max (t, mock_input), | |
10028 | /* If there's a binding (i.e. | |
10029 | first_binding >= nmaps) we don't want | |
10030 | to apply this function-key-mapping. */ | |
10031 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 10032 | &diff, prompt); |
fe5b94c5 SM |
10033 | UNGCPRO; |
10034 | if (done) | |
a612e298 | 10035 | { |
fe5b94c5 | 10036 | mock_input = diff + max (t, mock_input); |
4f4a84ec SM |
10037 | /* Adjust the input-decode-map counters. */ |
10038 | indec.end += diff; | |
10039 | indec.start += diff; | |
10040 | ||
a612e298 RS |
10041 | goto replay_sequence; |
10042 | } | |
fe5b94c5 | 10043 | } |
a612e298 | 10044 | |
fe5b94c5 SM |
10045 | /* Look for this sequence in key-translation-map. |
10046 | Scan from keytran.end until we find a bound suffix. */ | |
10047 | while (keytran.end < fkey.start) | |
10048 | { | |
4f4a84ec | 10049 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 | 10050 | int done, diff; |
a612e298 | 10051 | |
4f4a84ec | 10052 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 | 10053 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), |
24d80a06 | 10054 | 1, &diff, prompt); |
fe5b94c5 SM |
10055 | UNGCPRO; |
10056 | if (done) | |
10057 | { | |
10058 | mock_input = diff + max (t, mock_input); | |
4f4a84ec SM |
10059 | /* Adjust the function-key-map and input-decode-map counters. */ |
10060 | indec.end += diff; | |
10061 | indec.start += diff; | |
fe5b94c5 SM |
10062 | fkey.end += diff; |
10063 | fkey.start += diff; | |
6b61353c | 10064 | |
fe5b94c5 SM |
10065 | goto replay_sequence; |
10066 | } | |
10067 | } | |
4e50f26a RS |
10068 | |
10069 | /* If KEY is not defined in any of the keymaps, | |
10070 | and cannot be part of a function key or translation, | |
10071 | and is an upper case letter | |
10072 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 10073 | if (first_binding >= nmaps |
4f4a84ec | 10074 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t |
8c18cbfb | 10075 | && INTEGERP (key) |
c23cad0b | 10076 | && ((CHARACTERP (make_number (XINT (key) & ~CHAR_MODIFIER_MASK)) |
16747e03 | 10077 | && UPPERCASEP (XINT (key) & ~CHAR_MODIFIER_MASK)) |
4e50f26a RS |
10078 | || (XINT (key) & shift_modifier))) |
10079 | { | |
569871d2 | 10080 | Lisp_Object new_key; |
569871d2 | 10081 | |
309b0fc8 RS |
10082 | original_uppercase = key; |
10083 | original_uppercase_position = t - 1; | |
10084 | ||
831f35a2 | 10085 | if (XINT (key) & shift_modifier) |
569871d2 | 10086 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 10087 | else |
16747e03 | 10088 | XSETINT (new_key, (DOWNCASE (XINT (key) & ~CHAR_MODIFIER_MASK) |
a864f6d6 | 10089 | | (XINT (key) & CHAR_MODIFIER_MASK))); |
569871d2 | 10090 | |
3fe8e9a2 RS |
10091 | /* We have to do this unconditionally, regardless of whether |
10092 | the lower-case char is defined in the keymaps, because they | |
10093 | might get translated through function-key-map. */ | |
10094 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 10095 | mock_input = max (t, mock_input); |
025ae953 | 10096 | shift_translated = 1; |
3fe8e9a2 RS |
10097 | |
10098 | goto replay_sequence; | |
4e50f26a | 10099 | } |
ef8fd672 RS |
10100 | /* If KEY is not defined in any of the keymaps, |
10101 | and cannot be part of a function key or translation, | |
10102 | and is a shifted function key, | |
10103 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 10104 | if (first_binding >= nmaps |
21ec2c43 | 10105 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t) |
ef8fd672 | 10106 | { |
21ec2c43 SM |
10107 | Lisp_Object breakdown = parse_modifiers (key); |
10108 | int modifiers | |
10109 | = CONSP (breakdown) ? (XINT (XCAR (XCDR (breakdown)))) : 0; | |
10110 | ||
10111 | if (modifiers & shift_modifier | |
10112 | /* Treat uppercase keys as shifted. */ | |
10113 | || (INTEGERP (key) | |
87df3c32 SM |
10114 | && (KEY_TO_CHAR (key) |
10115 | < XCHAR_TABLE (current_buffer->downcase_table)->size) | |
21ec2c43 | 10116 | && UPPERCASEP (KEY_TO_CHAR (key)))) |
ef8fd672 | 10117 | { |
21ec2c43 SM |
10118 | Lisp_Object new_key |
10119 | = (modifiers & shift_modifier | |
10120 | ? apply_modifiers (modifiers & ~shift_modifier, | |
10121 | XCAR (breakdown)) | |
10122 | : make_number (DOWNCASE (KEY_TO_CHAR (key)) | modifiers)); | |
3fe8e9a2 RS |
10123 | |
10124 | original_uppercase = key; | |
10125 | original_uppercase_position = t - 1; | |
ef8fd672 | 10126 | |
21ec2c43 SM |
10127 | /* We have to do this unconditionally, regardless of whether |
10128 | the lower-case char is defined in the keymaps, because they | |
10129 | might get translated through function-key-map. */ | |
3fe8e9a2 | 10130 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 10131 | mock_input = max (t, mock_input); |
21ec2c43 SM |
10132 | /* Reset fkey (and consequently keytran) to apply |
10133 | function-key-map on the result, so that S-backspace is | |
10134 | correctly mapped to DEL (via backspace). OTOH, | |
10135 | input-decode-map doesn't need to go through it again. */ | |
10136 | fkey.start = fkey.end = 0; | |
10137 | keytran.start = keytran.end = 0; | |
025ae953 | 10138 | shift_translated = 1; |
21ec2c43 | 10139 | |
3fe8e9a2 | 10140 | goto replay_sequence; |
ef8fd672 RS |
10141 | } |
10142 | } | |
284f4730 | 10143 | } |
309b0fc8 | 10144 | if (!dummyflag) |
bc536d84 RS |
10145 | read_key_sequence_cmd = (first_binding < nmaps |
10146 | ? defs[first_binding] | |
10147 | : Qnil); | |
284f4730 | 10148 | |
cd21b839 | 10149 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 10150 | unbind_to (count, Qnil); |
07f76a14 | 10151 | |
3fe8e9a2 RS |
10152 | /* Don't downcase the last character if the caller says don't. |
10153 | Don't downcase it if the result is undefined, either. */ | |
10154 | if ((dont_downcase_last || first_binding >= nmaps) | |
a53fe666 | 10155 | && t > 0 |
3fe8e9a2 | 10156 | && t - 1 == original_uppercase_position) |
025ae953 CY |
10157 | { |
10158 | keybuf[t - 1] = original_uppercase; | |
10159 | shift_translated = 0; | |
10160 | } | |
10161 | ||
10162 | if (shift_translated) | |
10163 | Vthis_command_keys_shift_translated = Qt; | |
309b0fc8 | 10164 | |
07f76a14 JB |
10165 | /* Occasionally we fabricate events, perhaps by expanding something |
10166 | according to function-key-map, or by adding a prefix symbol to a | |
10167 | mouse click in the scroll bar or modeline. In this cases, return | |
10168 | the entire generated key sequence, even if we hit an unbound | |
10169 | prefix or a definition before the end. This means that you will | |
10170 | be able to push back the event properly, and also means that | |
10171 | read-key-sequence will always return a logical unit. | |
10172 | ||
10173 | Better ideas? */ | |
cca310da JB |
10174 | for (; t < mock_input; t++) |
10175 | { | |
f2647d04 DL |
10176 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
10177 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 10178 | echo_char (keybuf[t]); |
cca310da JB |
10179 | add_command_key (keybuf[t]); |
10180 | } | |
07f76a14 | 10181 | |
2dc00208 | 10182 | UNGCPRO; |
284f4730 JB |
10183 | return t; |
10184 | } | |
10185 | ||
d5eecefb | 10186 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
10187 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
10188 | The sequence is sufficient to specify a non-prefix command in the | |
10189 | current local and global maps. | |
10190 | ||
10191 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
10192 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
10193 | as a continuation of the previous key. | |
10194 | ||
10195 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
10196 | convert the last event to lower case. (Normally any upper case event | |
10197 | is converted to lower case if the original event is undefined and the lower | |
10198 | case equivalent is defined.) A non-nil value is appropriate for reading | |
10199 | a key sequence to be defined. | |
10200 | ||
10201 | A C-g typed while in this function is treated like any other character, | |
10202 | and `quit-flag' is not set. | |
10203 | ||
10204 | If the key sequence starts with a mouse click, then the sequence is read | |
10205 | using the keymaps of the buffer of the window clicked in, not the buffer | |
10206 | of the selected window as normal. | |
10207 | ||
10208 | `read-key-sequence' drops unbound button-down events, since you normally | |
10209 | only care about the click or drag events which follow them. If a drag | |
10210 | or multi-click event is unbound, but the corresponding click event would | |
10211 | be bound, `read-key-sequence' turns the event into a click event at the | |
10212 | drag's starting position. This means that you don't have to distinguish | |
10213 | between click and drag, double, or triple events unless you want to. | |
10214 | ||
10215 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
10216 | lines separating windows, and scroll bars with imaginary keys | |
10217 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
10218 | ||
10219 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
10220 | function will process a switch-frame event if the user switches frames | |
10221 | before typing anything. If the user switches frames in the middle of a | |
10222 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
10223 | is nil, then the event will be put off until after the current key sequence. | |
10224 | ||
10225 | `read-key-sequence' checks `function-key-map' for function key | |
10226 | sequences, where they wouldn't conflict with ordinary bindings. See | |
10227 | `function-key-map' for more details. | |
10228 | ||
10229 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
10230 | that this key sequence is being read by something that will | |
10231 | read commands one after another. It should be nil if the caller | |
10232 | will read just one key sequence. */) | |
d5eecefb RS |
10233 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
10234 | command_loop) | |
309b0fc8 | 10235 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10236 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
10237 | { |
10238 | Lisp_Object keybuf[30]; | |
10239 | register int i; | |
03cee6ae | 10240 | struct gcpro gcpro1; |
aed13378 | 10241 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10242 | |
10243 | if (!NILP (prompt)) | |
b7826503 | 10244 | CHECK_STRING (prompt); |
284f4730 JB |
10245 | QUIT; |
10246 | ||
d5eecefb RS |
10247 | specbind (Qinput_method_exit_on_first_char, |
10248 | (NILP (command_loop) ? Qt : Qnil)); | |
10249 | specbind (Qinput_method_use_echo_area, | |
10250 | (NILP (command_loop) ? Qt : Qnil)); | |
10251 | ||
284f4730 JB |
10252 | bzero (keybuf, sizeof keybuf); |
10253 | GCPRO1 (keybuf[0]); | |
10254 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10255 | ||
daa37602 | 10256 | if (NILP (continue_echo)) |
6321824f RS |
10257 | { |
10258 | this_command_key_count = 0; | |
63020c46 | 10259 | this_command_key_count_reset = 0; |
6321824f RS |
10260 | this_single_command_key_start = 0; |
10261 | } | |
c0a58692 | 10262 | |
d148e14d | 10263 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10264 | if (display_hourglass_p) |
10265 | cancel_hourglass (); | |
d0c48478 GM |
10266 | #endif |
10267 | ||
309b0fc8 | 10268 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 10269 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 10270 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 10271 | |
ae18aa3b | 10272 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 10273 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 10274 | for code reading keys in a loop, like an input method. */ |
d148e14d | 10275 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10276 | if (display_hourglass_p) |
10277 | start_hourglass (); | |
ae18aa3b | 10278 | #endif |
d0c48478 GM |
10279 | #endif |
10280 | ||
dcc408a0 RS |
10281 | if (i == -1) |
10282 | { | |
10283 | Vquit_flag = Qt; | |
10284 | QUIT; | |
10285 | } | |
284f4730 | 10286 | UNGCPRO; |
d5eecefb | 10287 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 10288 | } |
e39da3d7 RS |
10289 | |
10290 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 10291 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
10292 | doc: /* Like `read-key-sequence' but always return a vector. */) |
10293 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
10294 | command_loop) | |
e39da3d7 | 10295 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 10296 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
10297 | { |
10298 | Lisp_Object keybuf[30]; | |
10299 | register int i; | |
03cee6ae | 10300 | struct gcpro gcpro1; |
aed13378 | 10301 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
10302 | |
10303 | if (!NILP (prompt)) | |
b7826503 | 10304 | CHECK_STRING (prompt); |
e39da3d7 RS |
10305 | QUIT; |
10306 | ||
d5eecefb RS |
10307 | specbind (Qinput_method_exit_on_first_char, |
10308 | (NILP (command_loop) ? Qt : Qnil)); | |
10309 | specbind (Qinput_method_use_echo_area, | |
10310 | (NILP (command_loop) ? Qt : Qnil)); | |
10311 | ||
e39da3d7 RS |
10312 | bzero (keybuf, sizeof keybuf); |
10313 | GCPRO1 (keybuf[0]); | |
10314 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10315 | ||
10316 | if (NILP (continue_echo)) | |
10317 | { | |
10318 | this_command_key_count = 0; | |
63020c46 | 10319 | this_command_key_count_reset = 0; |
e39da3d7 RS |
10320 | this_single_command_key_start = 0; |
10321 | } | |
10322 | ||
d148e14d | 10323 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10324 | if (display_hourglass_p) |
10325 | cancel_hourglass (); | |
d0c48478 GM |
10326 | #endif |
10327 | ||
e39da3d7 RS |
10328 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
10329 | prompt, ! NILP (dont_downcase_last), | |
10330 | ! NILP (can_return_switch_frame), 0); | |
10331 | ||
d148e14d | 10332 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10333 | if (display_hourglass_p) |
10334 | start_hourglass (); | |
d0c48478 GM |
10335 | #endif |
10336 | ||
e39da3d7 RS |
10337 | if (i == -1) |
10338 | { | |
10339 | Vquit_flag = Qt; | |
10340 | QUIT; | |
10341 | } | |
10342 | UNGCPRO; | |
d5eecefb | 10343 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 10344 | } |
284f4730 | 10345 | \f |
158f7532 | 10346 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
10347 | doc: /* Execute CMD as an editor command. |
10348 | CMD must be a symbol that satisfies the `commandp' predicate. | |
10349 | Optional second arg RECORD-FLAG non-nil | |
10350 | means unconditionally put this command in `command-history'. | |
10351 | Otherwise, that is done only if an arg is read using the minibuffer. | |
10352 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
10353 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
10354 | The argument SPECIAL, if non-nil, means that this command is executing | |
10355 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
10356 | (cmd, record_flag, keys, special) |
10357 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
10358 | { |
10359 | register Lisp_Object final; | |
10360 | register Lisp_Object tem; | |
10361 | Lisp_Object prefixarg; | |
284f4730 JB |
10362 | extern int debug_on_next_call; |
10363 | ||
284f4730 JB |
10364 | debug_on_next_call = 0; |
10365 | ||
158f7532 RS |
10366 | if (NILP (special)) |
10367 | { | |
10368 | prefixarg = current_kboard->Vprefix_arg; | |
10369 | Vcurrent_prefix_arg = prefixarg; | |
10370 | current_kboard->Vprefix_arg = Qnil; | |
10371 | } | |
10372 | else | |
10373 | prefixarg = Qnil; | |
10374 | ||
8c18cbfb | 10375 | if (SYMBOLP (cmd)) |
284f4730 JB |
10376 | { |
10377 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 10378 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 10379 | { |
971e4c98 | 10380 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 10381 | if (!NILP (tem)) |
971e4c98 | 10382 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 10383 | } |
284f4730 JB |
10384 | } |
10385 | ||
01e26217 | 10386 | while (1) |
284f4730 | 10387 | { |
a7f96a35 | 10388 | final = Findirect_function (cmd, Qnil); |
284f4730 JB |
10389 | |
10390 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
10391 | { |
10392 | struct gcpro gcpro1, gcpro2; | |
10393 | ||
10394 | GCPRO2 (cmd, prefixarg); | |
10395 | do_autoload (final, cmd); | |
10396 | UNGCPRO; | |
10397 | } | |
284f4730 JB |
10398 | else |
10399 | break; | |
10400 | } | |
10401 | ||
8c18cbfb | 10402 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
10403 | { |
10404 | /* If requested, place the macro in the command history. For | |
10405 | other sorts of commands, call-interactively takes care of | |
10406 | this. */ | |
e57d8fd8 | 10407 | if (!NILP (record_flag)) |
f4385381 RS |
10408 | { |
10409 | Vcommand_history | |
10410 | = Fcons (Fcons (Qexecute_kbd_macro, | |
10411 | Fcons (final, Fcons (prefixarg, Qnil))), | |
10412 | Vcommand_history); | |
10413 | ||
10414 | /* Don't keep command history around forever. */ | |
10415 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
10416 | { | |
10417 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
10418 | if (CONSP (tem)) | |
f3fbd155 | 10419 | XSETCDR (tem, Qnil); |
f4385381 RS |
10420 | } |
10421 | } | |
284f4730 | 10422 | |
caa06051 | 10423 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 10424 | } |
f4385381 | 10425 | |
8c18cbfb | 10426 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
6d0867e5 SM |
10427 | /* Don't call Fcall_interactively directly because we want to make |
10428 | sure the backtrace has an entry for `call-interactively'. | |
10429 | For the same reason, pass `cmd' rather than `final'. */ | |
10430 | return call3 (Qcall_interactively, cmd, record_flag, keys); | |
284f4730 | 10431 | |
284f4730 JB |
10432 | return Qnil; |
10433 | } | |
c970a760 GM |
10434 | |
10435 | ||
284f4730 | 10436 | \f |
284f4730 | 10437 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 | 10438 | 1, 1, "P", |
dfb4bff5 EZ |
10439 | doc: /* Read function name, then read its arguments and call it. |
10440 | ||
10441 | To pass a numeric argument to the command you are invoking with, specify | |
10442 | the numeric argument to this command. | |
10443 | ||
10444 | Noninteractively, the argument PREFIXARG is the prefix argument to | |
10445 | give to the command you invoke, if it asks for an argument. */) | |
4707d2d0 | 10446 | (prefixarg) |
284f4730 JB |
10447 | Lisp_Object prefixarg; |
10448 | { | |
10449 | Lisp_Object function; | |
10450 | char buf[40]; | |
2e1a49ad SM |
10451 | int saved_last_point_position; |
10452 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 10453 | Lisp_Object bindings, value; |
2e1a49ad | 10454 | struct gcpro gcpro1, gcpro2, gcpro3; |
d148e14d | 10455 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10456 | /* The call to Fcompleting_read wil start and cancel the hourglass, |
10457 | but if the hourglass was already scheduled, this means that no | |
10458 | hourglass will be shown for the actual M-x command itself. | |
10459 | So we restart it if it is already scheduled. Note that checking | |
10460 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
10461 | just scheduled to be shown. */ | |
10462 | int hstarted = hourglass_started (); | |
10463 | #endif | |
284f4730 | 10464 | |
b0f2a7bf KH |
10465 | saved_keys = Fvector (this_command_key_count, |
10466 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
10467 | saved_last_point_position_buffer = last_point_position_buffer; |
10468 | saved_last_point_position = last_point_position; | |
284f4730 | 10469 | buf[0] = 0; |
2e1a49ad | 10470 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
10471 | |
10472 | if (EQ (prefixarg, Qminus)) | |
10473 | strcpy (buf, "- "); | |
7539e11f | 10474 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 10475 | strcpy (buf, "C-u "); |
7539e11f | 10476 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
cea5d0d4 | 10477 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
8c18cbfb | 10478 | else if (INTEGERP (prefixarg)) |
cea5d0d4 | 10479 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
284f4730 JB |
10480 | |
10481 | /* This isn't strictly correct if execute-extended-command | |
10482 | is bound to anything else. Perhaps it should use | |
10483 | this_command_keys? */ | |
10484 | strcat (buf, "M-x "); | |
10485 | ||
10486 | /* Prompt with buf, and then read a string, completing from and | |
10487 | restricting to the set of all defined commands. Don't provide | |
51763820 | 10488 | any initial input. Save the command read on the extended-command |
03b4122a | 10489 | history list. */ |
284f4730 JB |
10490 | function = Fcompleting_read (build_string (buf), |
10491 | Vobarray, Qcommandp, | |
4328577a KH |
10492 | Qt, Qnil, Qextended_command_history, Qnil, |
10493 | Qnil); | |
284f4730 | 10494 | |
d148e14d | 10495 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10496 | if (hstarted) start_hourglass (); |
10497 | #endif | |
10498 | ||
d5db4077 | 10499 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
10500 | error ("No command name given"); |
10501 | ||
1113d9db JB |
10502 | /* Set this_command_keys to the concatenation of saved_keys and |
10503 | function, followed by a RET. */ | |
284f4730 | 10504 | { |
b0f2a7bf | 10505 | Lisp_Object *keys; |
284f4730 | 10506 | int i; |
284f4730 | 10507 | |
1113d9db | 10508 | this_command_key_count = 0; |
63020c46 | 10509 | this_command_key_count_reset = 0; |
6321824f | 10510 | this_single_command_key_start = 0; |
1113d9db | 10511 | |
b0f2a7bf KH |
10512 | keys = XVECTOR (saved_keys)->contents; |
10513 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
10514 | add_command_key (keys[i]); | |
1113d9db | 10515 | |
1b049b51 | 10516 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 10517 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 10518 | |
301738ed | 10519 | add_command_key (make_number ('\015')); |
284f4730 JB |
10520 | } |
10521 | ||
2e1a49ad SM |
10522 | last_point_position = saved_last_point_position; |
10523 | last_point_position_buffer = saved_last_point_position_buffer; | |
10524 | ||
284f4730 JB |
10525 | UNGCPRO; |
10526 | ||
0a7f1fc0 | 10527 | function = Fintern (function, Qnil); |
d8bcf58e | 10528 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
10529 | Vthis_command = function; |
10530 | real_this_command = function; | |
284f4730 | 10531 | |
6526ab49 RS |
10532 | /* If enabled, show which key runs this command. */ |
10533 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 10534 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 10535 | && SYMBOLP (function)) |
5434fce6 | 10536 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 10537 | Qt, Qnil, Qnil); |
5434fce6 RS |
10538 | else |
10539 | bindings = Qnil; | |
6526ab49 | 10540 | |
5434fce6 | 10541 | value = Qnil; |
6d0867e5 | 10542 | GCPRO3 (bindings, value, function); |
5434fce6 | 10543 | value = Fcommand_execute (function, Qt, Qnil, Qnil); |
6526ab49 | 10544 | |
5434fce6 | 10545 | /* If the command has a key binding, print it now. */ |
3ababa60 | 10546 | if (!NILP (bindings) |
ee112567 KH |
10547 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
10548 | Qmouse_movement))) | |
5434fce6 RS |
10549 | { |
10550 | /* But first wait, and skip the message if there is input. */ | |
7ba07a1a CY |
10551 | Lisp_Object waited; |
10552 | ||
666dc232 KS |
10553 | /* If this command displayed something in the echo area; |
10554 | wait a few seconds, then display our suggestion message. */ | |
10555 | if (NILP (echo_area_buffer[0])) | |
10556 | waited = sit_for (make_number (0), 0, 2); | |
10557 | else if (NUMBERP (Vsuggest_key_bindings)) | |
2bcac766 | 10558 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
426939cc | 10559 | else |
666dc232 | 10560 | waited = sit_for (make_number (2), 0, 2); |
426939cc | 10561 | |
7ba07a1a | 10562 | if (!NILP (waited) && ! CONSP (Vunread_command_events)) |
6526ab49 | 10563 | { |
5434fce6 RS |
10564 | Lisp_Object binding; |
10565 | char *newmessage; | |
985f9f66 | 10566 | int message_p = push_message (); |
331379bf | 10567 | int count = SPECPDL_INDEX (); |
5434fce6 | 10568 | |
65efd7da | 10569 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 10570 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
10571 | |
10572 | newmessage | |
d5db4077 KR |
10573 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
10574 | + SBYTES (binding) | |
5434fce6 | 10575 | + 100); |
3ababa60 | 10576 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
10577 | SDATA (SYMBOL_NAME (function)), |
10578 | SDATA (binding)); | |
301738ed RS |
10579 | message2_nolog (newmessage, |
10580 | strlen (newmessage), | |
10581 | STRING_MULTIBYTE (binding)); | |
7ba07a1a | 10582 | if (NUMBERP (Vsuggest_key_bindings)) |
666dc232 | 10583 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
7ba07a1a | 10584 | else |
666dc232 | 10585 | waited = sit_for (make_number (2), 0, 2); |
7ba07a1a CY |
10586 | |
10587 | if (!NILP (waited) && message_p) | |
985f9f66 GM |
10588 | restore_message (); |
10589 | ||
c970a760 | 10590 | unbind_to (count, Qnil); |
6526ab49 RS |
10591 | } |
10592 | } | |
10593 | ||
5434fce6 | 10594 | RETURN_UNGCPRO (value); |
284f4730 | 10595 | } |
6526ab49 | 10596 | |
284f4730 | 10597 | \f |
d9d4c147 | 10598 | /* Return nonzero if input events are pending. */ |
284f4730 | 10599 | |
dfcf069d | 10600 | int |
284f4730 JB |
10601 | detect_input_pending () |
10602 | { | |
10603 | if (!input_pending) | |
d9d4c147 KH |
10604 | get_input_pending (&input_pending, 0); |
10605 | ||
10606 | return input_pending; | |
10607 | } | |
10608 | ||
a2d5fca0 JD |
10609 | /* Return nonzero if input events other than mouse movements are |
10610 | pending. */ | |
10611 | ||
10612 | int | |
10613 | detect_input_pending_ignore_squeezables () | |
10614 | { | |
10615 | if (!input_pending) | |
10616 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
10617 | ||
10618 | return input_pending; | |
10619 | } | |
10620 | ||
b1878f45 | 10621 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 10622 | |
dfcf069d | 10623 | int |
87dd9b9b RS |
10624 | detect_input_pending_run_timers (do_display) |
10625 | int do_display; | |
d9d4c147 | 10626 | { |
87dd9b9b RS |
10627 | int old_timers_run = timers_run; |
10628 | ||
d9d4c147 | 10629 | if (!input_pending) |
a2d5fca0 | 10630 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 10631 | |
87dd9b9b | 10632 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 10633 | { |
3007ebfb | 10634 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
10635 | /* The following fixes a bug when using lazy-lock with |
10636 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
10637 | from an idle timer function. The symptom of the bug is that | |
10638 | the cursor sometimes doesn't become visible until the next X | |
10639 | event is processed. --gerd. */ | |
fa971ac3 KL |
10640 | { |
10641 | Lisp_Object tail, frame; | |
10642 | FOR_EACH_FRAME (tail, frame) | |
10643 | if (FRAME_RIF (XFRAME (frame))) | |
10644 | FRAME_RIF (XFRAME (frame))->flush_display (XFRAME (frame)); | |
10645 | } | |
7ee32cda | 10646 | } |
87dd9b9b | 10647 | |
284f4730 JB |
10648 | return input_pending; |
10649 | } | |
10650 | ||
ffd56f97 JB |
10651 | /* This is called in some cases before a possible quit. |
10652 | It cases the next call to detect_input_pending to recompute input_pending. | |
10653 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
10654 | |
10655 | void | |
ffd56f97 JB |
10656 | clear_input_pending () |
10657 | { | |
10658 | input_pending = 0; | |
10659 | } | |
10660 | ||
b1878f45 | 10661 | /* Return nonzero if there are pending requeued events. |
d64b707c | 10662 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 10663 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
10664 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
10665 | to do in that case. It isn't trivial. */ | |
10666 | ||
dfcf069d | 10667 | int |
b1878f45 RS |
10668 | requeued_events_pending_p () |
10669 | { | |
10670 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
10671 | } | |
10672 | ||
10673 | ||
284f4730 | 10674 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
10675 | doc: /* Return t if command input is currently available with no wait. |
10676 | Actually, the value is nil only if we can be sure that no input is available; | |
10677 | if there is a doubt, the value is t. */) | |
4707d2d0 | 10678 | () |
284f4730 | 10679 | { |
182f67de KS |
10680 | if (!NILP (Vunread_command_events) || unread_command_char != -1 |
10681 | || !NILP (Vunread_post_input_method_events) | |
10682 | || !NILP (Vunread_input_method_events)) | |
284f4730 JB |
10683 | return (Qt); |
10684 | ||
a2d5fca0 JD |
10685 | get_input_pending (&input_pending, |
10686 | READABLE_EVENTS_DO_TIMERS_NOW | |
10687 | | READABLE_EVENTS_FILTER_EVENTS); | |
d9d4c147 | 10688 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
10689 | } |
10690 | ||
10691 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
0721f230 | 10692 | doc: /* Return vector of last 300 events, not counting those from keyboard macros. */) |
4707d2d0 | 10693 | () |
284f4730 | 10694 | { |
5160df46 | 10695 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
10696 | Lisp_Object val; |
10697 | ||
10698 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 10699 | return Fvector (total_keys, keys); |
284f4730 JB |
10700 | else |
10701 | { | |
5160df46 JB |
10702 | val = Fvector (NUM_RECENT_KEYS, keys); |
10703 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
10704 | XVECTOR (val)->contents, |
10705 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 10706 | bcopy (keys, |
284f4730 JB |
10707 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
10708 | recent_keys_index * sizeof (Lisp_Object)); | |
10709 | return val; | |
10710 | } | |
10711 | } | |
10712 | ||
10713 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 10714 | doc: /* Return the key sequence that invoked this command. |
92501652 | 10715 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 10716 | the last key sequence that has been read. |
65849ada EZ |
10717 | The value is a string or a vector. |
10718 | ||
10719 | See also `this-command-keys-vector'. */) | |
4707d2d0 | 10720 | () |
284f4730 | 10721 | { |
86e5706b RS |
10722 | return make_event_array (this_command_key_count, |
10723 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
10724 | } |
10725 | ||
e39da3d7 | 10726 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
10727 | doc: /* Return the key sequence that invoked this command, as a vector. |
10728 | However, if the command has called `read-key-sequence', it returns | |
65849ada EZ |
10729 | the last key sequence that has been read. |
10730 | ||
10731 | See also `this-command-keys'. */) | |
4707d2d0 | 10732 | () |
e39da3d7 RS |
10733 | { |
10734 | return Fvector (this_command_key_count, | |
10735 | XVECTOR (this_command_keys)->contents); | |
10736 | } | |
10737 | ||
6321824f RS |
10738 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10739 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10740 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10741 | More generally, it returns the last key sequence read, either by |
10742 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10743 | Unlike `this-command-keys', this function's value |
10744 | does not include prefix arguments. | |
10745 | The value is always a vector. */) | |
10746 | () | |
6321824f | 10747 | { |
e39da3d7 RS |
10748 | return Fvector (this_command_key_count |
10749 | - this_single_command_key_start, | |
10750 | (XVECTOR (this_command_keys)->contents | |
10751 | + this_single_command_key_start)); | |
6321824f RS |
10752 | } |
10753 | ||
7d18f9ae RS |
10754 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10755 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10756 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10757 | More generally, it returns the last key sequence read, either by |
10758 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10759 | Unlike `this-single-command-keys', this function's value |
10760 | shows the events before all translations (except for input methods). | |
10761 | The value is always a vector. */) | |
10762 | () | |
7d18f9ae RS |
10763 | { |
10764 | return Fvector (raw_keybuf_count, | |
10765 | (XVECTOR (raw_keybuf)->contents)); | |
10766 | } | |
10767 | ||
71918b75 | 10768 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10769 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10770 | doc: /* Make the unread events replace the last command and echo. |
10771 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10772 | |
10773 | `universal-argument-other-key' rereads the event just typed. | |
10774 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10775 | The translated event has to replace the real events, |
10776 | both in the value of (this-command-keys) and in echoing. | |
10777 | To achieve this, `universal-argument-other-key' calls | |
10778 | `reset-this-command-lengths', which discards the record of reading | |
10779 | these events the first time. */) | |
4707d2d0 | 10780 | () |
71918b75 | 10781 | { |
22b94eeb RS |
10782 | this_command_key_count = before_command_key_count; |
10783 | if (this_command_key_count < this_single_command_key_start) | |
10784 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10785 | |
22b94eeb RS |
10786 | echo_truncate (before_command_echo_length); |
10787 | ||
63020c46 RS |
10788 | /* Cause whatever we put into unread-command-events |
10789 | to echo as if it were being freshly read from the keyboard. */ | |
10790 | this_command_key_count_reset = 1; | |
10791 | ||
6e5742a0 | 10792 | return Qnil; |
71918b75 RS |
10793 | } |
10794 | ||
82e6e5af | 10795 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10796 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10797 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10798 | Also clear the record of the last 100 events, unless optional arg |
10799 | KEEP-RECORD is non-nil. */) | |
10800 | (keep_record) | |
10801 | Lisp_Object keep_record; | |
82e6e5af | 10802 | { |
fb0dde6c | 10803 | int i; |
c60ee5e7 | 10804 | |
82e6e5af | 10805 | this_command_key_count = 0; |
63020c46 | 10806 | this_command_key_count_reset = 0; |
fb0dde6c | 10807 | |
ab1959fc KS |
10808 | if (NILP (keep_record)) |
10809 | { | |
10810 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10811 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10812 | total_keys = 0; | |
10813 | recent_keys_index = 0; | |
10814 | } | |
82e6e5af RS |
10815 | return Qnil; |
10816 | } | |
10817 | ||
284f4730 | 10818 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
10819 | doc: /* Return the current depth in recursive edits. */) |
10820 | () | |
284f4730 JB |
10821 | { |
10822 | Lisp_Object temp; | |
bb9e9bed | 10823 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10824 | return temp; |
10825 | } | |
10826 | ||
10827 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10828 | "FOpen dribble file: ", |
10829 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10830 | If FILE is nil, close any open dribble file. */) | |
10831 | (file) | |
284f4730 JB |
10832 | Lisp_Object file; |
10833 | { | |
6cb52def | 10834 | if (dribble) |
284f4730 | 10835 | { |
34f5c10f | 10836 | BLOCK_INPUT; |
6cb52def | 10837 | fclose (dribble); |
34f5c10f | 10838 | UNBLOCK_INPUT; |
6cb52def | 10839 | dribble = 0; |
284f4730 | 10840 | } |
6cb52def | 10841 | if (!NILP (file)) |
284f4730 JB |
10842 | { |
10843 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10844 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10845 | if (dribble == 0) |
10846 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10847 | } |
10848 | return Qnil; | |
10849 | } | |
10850 | ||
10851 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10852 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10853 | Also end any kbd macro being defined. */) |
4707d2d0 | 10854 | () |
284f4730 | 10855 | { |
2b17d5ed KS |
10856 | if (!NILP (current_kboard->defining_kbd_macro)) |
10857 | { | |
10858 | /* Discard the last command from the macro. */ | |
10859 | Fcancel_kbd_macro_events (); | |
10860 | end_kbd_macro (); | |
10861 | } | |
10862 | ||
284f4730 JB |
10863 | update_mode_lines++; |
10864 | ||
24597608 | 10865 | Vunread_command_events = Qnil; |
86e5706b | 10866 | unread_command_char = -1; |
284f4730 JB |
10867 | |
10868 | discard_tty_input (); | |
10869 | ||
7ee32cda | 10870 | kbd_fetch_ptr = kbd_store_ptr; |
284f4730 JB |
10871 | input_pending = 0; |
10872 | ||
10873 | return Qnil; | |
10874 | } | |
10875 | \f | |
10876 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10877 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10878 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10879 | control, run a subshell instead. | |
10880 | ||
10881 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10882 | to be read as terminal input by Emacs's parent, after suspension. | |
10883 | ||
10884 | Before suspending, run the normal hook `suspend-hook'. | |
10885 | After resumption run the normal hook `suspend-resume-hook'. | |
10886 | ||
10887 | Some operating systems cannot stop the Emacs process and resume it later. | |
10888 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10889 | (stuffstring) | |
284f4730 JB |
10890 | Lisp_Object stuffstring; |
10891 | { | |
aed13378 | 10892 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10893 | int old_height, old_width; |
10894 | int width, height; | |
03cee6ae | 10895 | struct gcpro gcpro1; |
284f4730 | 10896 | |
9628b887 | 10897 | if (tty_list && tty_list->next) |
4a933ef8 | 10898 | error ("There are other tty frames open; close them before suspending Emacs"); |
3b7fbceb | 10899 | |
284f4730 | 10900 | if (!NILP (stuffstring)) |
b7826503 | 10901 | CHECK_STRING (stuffstring); |
284f4730 | 10902 | |
1e95ed28 JB |
10903 | /* Run the functions in suspend-hook. */ |
10904 | if (!NILP (Vrun_hooks)) | |
10905 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10906 | |
b7d2ebbf | 10907 | GCPRO1 (stuffstring); |
0b0d3e0b | 10908 | get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height); |
28d440ab | 10909 | reset_all_sys_modes (); |
284f4730 JB |
10910 | /* sys_suspend can get an error if it tries to fork a subshell |
10911 | and the system resources aren't available for that. */ | |
017bbc62 | 10912 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_all_sys_modes, |
d52a7a92 | 10913 | Qnil); |
284f4730 | 10914 | stuff_buffered_input (stuffstring); |
8026024c KH |
10915 | if (cannot_suspend) |
10916 | sys_subshell (); | |
10917 | else | |
10918 | sys_suspend (); | |
284f4730 JB |
10919 | unbind_to (count, Qnil); |
10920 | ||
10921 | /* Check if terminal/window size has changed. | |
10922 | Note that this is not useful when we are running directly | |
10923 | with a window system; but suspend should be disabled in that case. */ | |
0b0d3e0b | 10924 | get_tty_size (fileno (CURTTY ()->input), &width, &height); |
284f4730 | 10925 | if (width != old_width || height != old_height) |
788f89eb | 10926 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10927 | |
1e95ed28 | 10928 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10929 | if (!NILP (Vrun_hooks)) |
10930 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10931 | |
284f4730 JB |
10932 | UNGCPRO; |
10933 | return Qnil; | |
10934 | } | |
10935 | ||
10936 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10937 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10938 | |
07a59269 | 10939 | void |
284f4730 JB |
10940 | stuff_buffered_input (stuffstring) |
10941 | Lisp_Object stuffstring; | |
10942 | { | |
0c1c1b93 | 10943 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10944 | register unsigned char *p; |
612b78ef | 10945 | |
8c18cbfb | 10946 | if (STRINGP (stuffstring)) |
284f4730 JB |
10947 | { |
10948 | register int count; | |
10949 | ||
d5db4077 KR |
10950 | p = SDATA (stuffstring); |
10951 | count = SBYTES (stuffstring); | |
284f4730 JB |
10952 | while (count-- > 0) |
10953 | stuff_char (*p++); | |
10954 | stuff_char ('\n'); | |
10955 | } | |
c60ee5e7 | 10956 | |
284f4730 | 10957 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10958 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10959 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10960 | |
0c1c1b93 RS |
10961 | rms: we should stuff everything back into the kboard |
10962 | it came from. */ | |
beecf6a1 | 10963 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10964 | { |
c60ee5e7 | 10965 | |
beecf6a1 KH |
10966 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10967 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10968 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10969 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10970 | |
6b61353c | 10971 | clear_event (kbd_fetch_ptr); |
284f4730 | 10972 | } |
c60ee5e7 | 10973 | |
284f4730 | 10974 | input_pending = 0; |
0c1c1b93 | 10975 | #endif /* SIGTSTP */ |
284f4730 JB |
10976 | } |
10977 | \f | |
dfcf069d | 10978 | void |
ffd56f97 JB |
10979 | set_waiting_for_input (time_to_clear) |
10980 | EMACS_TIME *time_to_clear; | |
284f4730 | 10981 | { |
ffd56f97 | 10982 | input_available_clear_time = time_to_clear; |
284f4730 | 10983 | |
114a8b8c | 10984 | /* Tell handle_interrupt to throw back to read_char, */ |
284f4730 JB |
10985 | waiting_for_input = 1; |
10986 | ||
114a8b8c | 10987 | /* If handle_interrupt was called before and buffered a C-g, |
284f4730 JB |
10988 | make it run again now, to avoid timing error. */ |
10989 | if (!NILP (Vquit_flag)) | |
10990 | quit_throw_to_read_char (); | |
284f4730 JB |
10991 | } |
10992 | ||
07a59269 | 10993 | void |
284f4730 JB |
10994 | clear_waiting_for_input () |
10995 | { | |
114a8b8c | 10996 | /* Tell handle_interrupt not to throw back to read_char, */ |
284f4730 | 10997 | waiting_for_input = 0; |
ffd56f97 | 10998 | input_available_clear_time = 0; |
284f4730 JB |
10999 | } |
11000 | ||
da8e1115 | 11001 | /* The SIGINT handler. |
284f4730 | 11002 | |
e72cf5ee KL |
11003 | If we have a frame on the controlling tty, we assume that the |
11004 | SIGINT was generated by C-g, so we call handle_interrupt. | |
11005 | Otherwise, the handler kills Emacs. */ | |
284f4730 | 11006 | |
14e40288 | 11007 | static SIGTYPE |
91c049d4 RS |
11008 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
11009 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 11010 | { |
284f4730 JB |
11011 | /* Must preserve main program's value of errno. */ |
11012 | int old_errno = errno; | |
6ed8eeff | 11013 | struct terminal *terminal; |
284f4730 | 11014 | |
5970a8cb | 11015 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7b00d185 KL |
11016 | /* USG systems forget handlers when they are used; |
11017 | must reestablish each time */ | |
11018 | signal (SIGINT, interrupt_signal); | |
11019 | signal (SIGQUIT, interrupt_signal); | |
284f4730 JB |
11020 | #endif /* USG */ |
11021 | ||
333f1b6f | 11022 | SIGNAL_THREAD_CHECK (signalnum); |
e72cf5ee | 11023 | |
6ed8eeff | 11024 | /* See if we have an active terminal on our controlling tty. */ |
fdf5ebde | 11025 | terminal = get_named_tty ("/dev/tty"); |
6ed8eeff | 11026 | if (!terminal) |
3224dac1 | 11027 | { |
4ca927b4 KL |
11028 | /* If there are no frames there, let's pretend that we are a |
11029 | well-behaving UN*X program and quit. */ | |
b3e6f69c | 11030 | Fkill_emacs (Qnil); |
3224dac1 | 11031 | } |
4ca927b4 KL |
11032 | else |
11033 | { | |
11034 | /* Otherwise, the SIGINT was probably generated by C-g. */ | |
3b7fbceb | 11035 | |
4ca927b4 KL |
11036 | /* Set internal_last_event_frame to the top frame of the |
11037 | controlling tty, if we have a frame there. We disable the | |
11038 | interrupt key on secondary ttys, so the SIGINT must have come | |
11039 | from the controlling tty. */ | |
6ed8eeff | 11040 | internal_last_event_frame = terminal->display_info.tty->top_frame; |
4ca927b4 KL |
11041 | |
11042 | handle_interrupt (); | |
4ca927b4 | 11043 | } |
114a8b8c KL |
11044 | |
11045 | errno = old_errno; | |
11046 | } | |
11047 | ||
da8e1115 | 11048 | /* This routine is called at interrupt level in response to C-g. |
3b7fbceb | 11049 | |
da8e1115 KL |
11050 | It is called from the SIGINT handler or kbd_buffer_store_event. |
11051 | ||
11052 | If `waiting_for_input' is non zero, then unless `echoing' is | |
11053 | nonzero, immediately throw back to read_char. | |
11054 | ||
11055 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes | |
11056 | eval to throw, when it gets a chance. If quit-flag is already | |
11057 | non-nil, it stops the job right away. */ | |
114a8b8c | 11058 | |
114a8b8c KL |
11059 | static void |
11060 | handle_interrupt () | |
11061 | { | |
3b7fbceb | 11062 | char c; |
114a8b8c | 11063 | |
284f4730 JB |
11064 | cancel_echoing (); |
11065 | ||
3224dac1 | 11066 | /* XXX This code needs to be revised for multi-tty support. */ |
31e4e97b | 11067 | if (!NILP (Vquit_flag) |
e72cf5ee | 11068 | #ifndef MSDOS |
fdf5ebde | 11069 | && get_named_tty ("/dev/tty") |
e72cf5ee KL |
11070 | #endif |
11071 | ) | |
284f4730 | 11072 | { |
31e4e97b EZ |
11073 | /* If SIGINT isn't blocked, don't let us be interrupted by |
11074 | another SIGINT, it might be harmful due to non-reentrancy | |
11075 | in I/O functions. */ | |
11076 | sigblock (sigmask (SIGINT)); | |
11077 | ||
284f4730 | 11078 | fflush (stdout); |
28d440ab | 11079 | reset_all_sys_modes (); |
31e4e97b | 11080 | |
284f4730 JB |
11081 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
11082 | /* | |
11083 | * On systems which can suspend the current process and return to the original | |
11084 | * shell, this command causes the user to end up back at the shell. | |
11085 | * The "Auto-save" and "Abort" questions are not asked until | |
11086 | * the user elects to return to emacs, at which point he can save the current | |
11087 | * job and either dump core or continue. | |
11088 | */ | |
11089 | sys_suspend (); | |
11090 | #else | |
11091 | #ifdef VMS | |
11092 | if (sys_suspend () == -1) | |
11093 | { | |
11094 | printf ("Not running as a subprocess;\n"); | |
11095 | printf ("you can continue or abort.\n"); | |
11096 | } | |
11097 | #else /* not VMS */ | |
11098 | /* Perhaps should really fork an inferior shell? | |
11099 | But that would not provide any way to get back | |
11100 | to the original shell, ever. */ | |
11101 | printf ("No support for stopping a process on this operating system;\n"); | |
11102 | printf ("you can continue or abort.\n"); | |
11103 | #endif /* not VMS */ | |
11104 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
11105 | #ifdef MSDOS |
11106 | /* We must remain inside the screen area when the internal terminal | |
11107 | is used. Note that [Enter] is not echoed by dos. */ | |
11108 | cursor_to (0, 0); | |
11109 | #endif | |
118d6ca9 RS |
11110 | /* It doesn't work to autosave while GC is in progress; |
11111 | the code used for auto-saving doesn't cope with the mark bit. */ | |
11112 | if (!gc_in_progress) | |
9fd7d808 | 11113 | { |
118d6ca9 RS |
11114 | printf ("Auto-save? (y or n) "); |
11115 | fflush (stdout); | |
11116 | if (((c = getchar ()) & ~040) == 'Y') | |
11117 | { | |
11118 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 11119 | #ifdef MSDOS |
118d6ca9 | 11120 | printf ("\r\nAuto-save done"); |
80e4aa30 | 11121 | #else /* not MSDOS */ |
118d6ca9 | 11122 | printf ("Auto-save done\n"); |
80e4aa30 | 11123 | #endif /* not MSDOS */ |
118d6ca9 RS |
11124 | } |
11125 | while (c != '\n') c = getchar (); | |
9fd7d808 | 11126 | } |
c60ee5e7 | 11127 | else |
118d6ca9 RS |
11128 | { |
11129 | /* During GC, it must be safe to reenable quitting again. */ | |
11130 | Vinhibit_quit = Qnil; | |
11131 | #ifdef MSDOS | |
11132 | printf ("\r\n"); | |
11133 | #endif /* not MSDOS */ | |
11134 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
11135 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
11136 | fflush (stdout); | |
11137 | } | |
11138 | ||
80e4aa30 RS |
11139 | #ifdef MSDOS |
11140 | printf ("\r\nAbort? (y or n) "); | |
11141 | #else /* not MSDOS */ | |
284f4730 JB |
11142 | #ifdef VMS |
11143 | printf ("Abort (and enter debugger)? (y or n) "); | |
11144 | #else /* not VMS */ | |
11145 | printf ("Abort (and dump core)? (y or n) "); | |
11146 | #endif /* not VMS */ | |
80e4aa30 | 11147 | #endif /* not MSDOS */ |
284f4730 JB |
11148 | fflush (stdout); |
11149 | if (((c = getchar ()) & ~040) == 'Y') | |
11150 | abort (); | |
11151 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
11152 | #ifdef MSDOS |
11153 | printf ("\r\nContinuing...\r\n"); | |
11154 | #else /* not MSDOS */ | |
284f4730 | 11155 | printf ("Continuing...\n"); |
80e4aa30 | 11156 | #endif /* not MSDOS */ |
284f4730 | 11157 | fflush (stdout); |
28d440ab | 11158 | init_all_sys_modes (); |
31e4e97b | 11159 | sigfree (); |
284f4730 JB |
11160 | } |
11161 | else | |
11162 | { | |
11163 | /* If executing a function that wants to be interrupted out of | |
11164 | and the user has not deferred quitting by binding `inhibit-quit' | |
11165 | then quit right away. */ | |
11166 | if (immediate_quit && NILP (Vinhibit_quit)) | |
11167 | { | |
e39da3d7 RS |
11168 | struct gl_state_s saved; |
11169 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
11170 | ||
284f4730 JB |
11171 | immediate_quit = 0; |
11172 | sigfree (); | |
e39da3d7 RS |
11173 | saved = gl_state; |
11174 | GCPRO4 (saved.object, saved.global_code, | |
11175 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 11176 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
11177 | gl_state = saved; |
11178 | UNGCPRO; | |
284f4730 JB |
11179 | } |
11180 | else | |
11181 | /* Else request quit when it's safe */ | |
11182 | Vquit_flag = Qt; | |
11183 | } | |
11184 | ||
11185 | if (waiting_for_input && !echoing) | |
4ca927b4 | 11186 | quit_throw_to_read_char (); |
284f4730 JB |
11187 | } |
11188 | ||
11189 | /* Handle a C-g by making read_char return C-g. */ | |
11190 | ||
07a59269 | 11191 | void |
284f4730 JB |
11192 | quit_throw_to_read_char () |
11193 | { | |
284f4730 JB |
11194 | sigfree (); |
11195 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 11196 | clear_waiting_for_input (); |
284f4730 JB |
11197 | input_pending = 0; |
11198 | ||
24597608 | 11199 | Vunread_command_events = Qnil; |
86e5706b | 11200 | unread_command_char = -1; |
284f4730 | 11201 | |
087feab3 RS |
11202 | #if 0 /* Currently, sit_for is called from read_char without turning |
11203 | off polling. And that can call set_waiting_for_input. | |
11204 | It seems to be harmless. */ | |
e6b01c14 JB |
11205 | #ifdef POLL_FOR_INPUT |
11206 | /* May be > 1 if in recursive minibuffer. */ | |
11207 | if (poll_suppress_count == 0) | |
11208 | abort (); | |
11209 | #endif | |
087feab3 | 11210 | #endif |
4c52b668 | 11211 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 11212 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 11213 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 11214 | 0, 0); |
e6b01c14 | 11215 | |
284f4730 JB |
11216 | _longjmp (getcjmp, 1); |
11217 | } | |
11218 | \f | |
a712a8c3 KL |
11219 | DEFUN ("set-input-interrupt-mode", Fset_input_interrupt_mode, Sset_input_interrupt_mode, 1, 1, 0, |
11220 | doc: /* Set interrupt mode of reading keyboard input. | |
11221 | If INTERRUPT is non-nil, Emacs will use input interrupts; | |
11222 | otherwise Emacs uses CBREAK mode. | |
11223 | ||
4707d2d0 | 11224 | See also `current-input-mode'. */) |
a712a8c3 KL |
11225 | (interrupt) |
11226 | Lisp_Object interrupt; | |
284f4730 | 11227 | { |
a712a8c3 | 11228 | int new_interrupt_input; |
284f4730 JB |
11229 | #ifdef SIGIO |
11230 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4beb2d71 | 11231 | #ifdef HAVE_X_WINDOWS |
6bbba5a6 | 11232 | if (x_display_list != NULL) |
9a0f60bb KH |
11233 | { |
11234 | /* When using X, don't give the user a real choice, | |
11235 | because we haven't implemented the mechanisms to support it. */ | |
11236 | #ifdef NO_SOCK_SIGIO | |
a712a8c3 | 11237 | new_interrupt_input = 0; |
9a0f60bb | 11238 | #else /* not NO_SOCK_SIGIO */ |
a712a8c3 | 11239 | new_interrupt_input = 1; |
284f4730 | 11240 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
11241 | } |
11242 | else | |
6bbba5a6 | 11243 | #endif |
a712a8c3 | 11244 | new_interrupt_input = !NILP (interrupt); |
284f4730 | 11245 | #else /* not SIGIO */ |
a712a8c3 | 11246 | new_interrupt_input = 0; |
284f4730 | 11247 | #endif /* not SIGIO */ |
9a0f60bb | 11248 | |
284f4730 JB |
11249 | /* Our VMS input only works by interrupts, as of now. */ |
11250 | #ifdef VMS | |
a712a8c3 | 11251 | new_interrupt_input = 1; |
284f4730 | 11252 | #endif |
9a0f60bb | 11253 | |
033b73e2 | 11254 | if (new_interrupt_input != interrupt_input) |
a712a8c3 KL |
11255 | { |
11256 | #ifdef POLL_FOR_INPUT | |
11257 | stop_polling (); | |
11258 | #endif | |
11259 | #ifndef DOS_NT | |
11260 | /* this causes startup screen to be restored and messes with the mouse */ | |
11261 | reset_all_sys_modes (); | |
11262 | #endif | |
11263 | interrupt_input = new_interrupt_input; | |
11264 | #ifndef DOS_NT | |
11265 | init_all_sys_modes (); | |
284f4730 | 11266 | #endif |
9a0f60bb | 11267 | |
a712a8c3 KL |
11268 | #ifdef POLL_FOR_INPUT |
11269 | poll_suppress_count = 1; | |
11270 | start_polling (); | |
11271 | #endif | |
11272 | } | |
11273 | return Qnil; | |
11274 | } | |
6bbba5a6 | 11275 | |
a712a8c3 KL |
11276 | DEFUN ("set-output-flow-control", Fset_output_flow_control, Sset_output_flow_control, 1, 2, 0, |
11277 | doc: /* Enable or disable ^S/^Q flow control for output to TERMINAL. | |
11278 | If FLOW is non-nil, flow control is enabled and you cannot use C-s or | |
11279 | C-q in key sequences. | |
11280 | ||
6ed8eeff | 11281 | This setting only has an effect on tty terminals and only when |
a712a8c3 KL |
11282 | Emacs reads input in CBREAK mode; see `set-input-interrupt-mode'. |
11283 | ||
11284 | See also `current-input-mode'. */) | |
11285 | (flow, terminal) | |
11286 | Lisp_Object flow, terminal; | |
11287 | { | |
6ed8eeff | 11288 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 | 11289 | struct tty_display_info *tty; |
6ed8eeff | 11290 | if (t == NULL || t->type != output_termcap) |
a712a8c3 | 11291 | return Qnil; |
6ed8eeff | 11292 | tty = t->display_info.tty; |
a712a8c3 KL |
11293 | |
11294 | if (tty->flow_control != !NILP (flow)) | |
daf01701 | 11295 | { |
a712a8c3 KL |
11296 | #ifndef DOS_NT |
11297 | /* this causes startup screen to be restored and messes with the mouse */ | |
11298 | reset_sys_modes (tty); | |
11299 | #endif | |
11300 | ||
daf01701 | 11301 | tty->flow_control = !NILP (flow); |
a712a8c3 KL |
11302 | |
11303 | #ifndef DOS_NT | |
11304 | init_sys_modes (tty); | |
11305 | #endif | |
daf01701 | 11306 | } |
ed8dad6b | 11307 | return Qnil; |
a712a8c3 KL |
11308 | } |
11309 | ||
11310 | DEFUN ("set-input-meta-mode", Fset_input_meta_mode, Sset_input_meta_mode, 1, 2, 0, | |
11311 | doc: /* Enable or disable 8-bit input on TERMINAL. | |
11312 | If META is t, Emacs will accept 8-bit input, and interpret the 8th | |
11313 | bit as the Meta modifier. | |
11314 | ||
11315 | If META is nil, Emacs will ignore the top bit, on the assumption it is | |
11316 | parity. | |
11317 | ||
11318 | Otherwise, Emacs will accept and pass through 8-bit input without | |
11319 | specially interpreting the top bit. | |
11320 | ||
6ed8eeff | 11321 | This setting only has an effect on tty terminal devices. |
3b7fbceb | 11322 | |
6ed8eeff | 11323 | Optional parameter TERMINAL specifies the tty terminal device to use. |
a712a8c3 KL |
11324 | It may be a terminal id, a frame, or nil for the terminal used by the |
11325 | currently selected frame. | |
11326 | ||
11327 | See also `current-input-mode'. */) | |
11328 | (meta, terminal) | |
11329 | Lisp_Object meta, terminal; | |
11330 | { | |
6ed8eeff | 11331 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 KL |
11332 | struct tty_display_info *tty; |
11333 | int new_meta; | |
033b73e2 | 11334 | |
6ed8eeff | 11335 | if (t == NULL || t->type != output_termcap) |
a712a8c3 | 11336 | return Qnil; |
6ed8eeff | 11337 | tty = t->display_info.tty; |
a712a8c3 | 11338 | |
b04904fb | 11339 | if (NILP (meta)) |
a712a8c3 | 11340 | new_meta = 0; |
b04904fb | 11341 | else if (EQ (meta, Qt)) |
a712a8c3 | 11342 | new_meta = 1; |
b04904fb | 11343 | else |
a712a8c3 | 11344 | new_meta = 2; |
284f4730 | 11345 | |
033b73e2 | 11346 | if (tty->meta_key != new_meta) |
a712a8c3 | 11347 | { |
07de30b9 | 11348 | #ifndef DOS_NT |
a712a8c3 KL |
11349 | /* this causes startup screen to be restored and messes with the mouse */ |
11350 | reset_sys_modes (tty); | |
2ee250ec | 11351 | #endif |
34f04431 | 11352 | |
a712a8c3 | 11353 | tty->meta_key = new_meta; |
033b73e2 | 11354 | |
a712a8c3 KL |
11355 | #ifndef DOS_NT |
11356 | init_sys_modes (tty); | |
34f04431 | 11357 | #endif |
a712a8c3 KL |
11358 | } |
11359 | return Qnil; | |
11360 | } | |
11361 | ||
11362 | DEFUN ("set-quit-char", Fset_quit_char, Sset_quit_char, 1, 1, 0, | |
11363 | doc: /* Specify character used for quitting. | |
11364 | QUIT must be an ASCII character. | |
11365 | ||
fdf5ebde KL |
11366 | This function only has an effect on the controlling tty of the Emacs |
11367 | process. | |
a712a8c3 KL |
11368 | |
11369 | See also `current-input-mode'. */) | |
11370 | (quit) | |
11371 | Lisp_Object quit; | |
11372 | { | |
fdf5ebde | 11373 | struct terminal *t = get_named_tty ("/dev/tty"); |
a712a8c3 | 11374 | struct tty_display_info *tty; |
6ed8eeff | 11375 | if (t == NULL || t->type != output_termcap) |
a712a8c3 | 11376 | return Qnil; |
6ed8eeff | 11377 | tty = t->display_info.tty; |
a712a8c3 | 11378 | |
6213d5b3 KL |
11379 | if (NILP (quit) || !INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400) |
11380 | error ("QUIT must be an ASCII character"); | |
11381 | ||
a712a8c3 KL |
11382 | #ifndef DOS_NT |
11383 | /* this causes startup screen to be restored and messes with the mouse */ | |
11384 | reset_sys_modes (tty); | |
11385 | #endif | |
033b73e2 | 11386 | |
a712a8c3 KL |
11387 | /* Don't let this value be out of range. */ |
11388 | quit_char = XINT (quit) & (tty->meta_key == 0 ? 0177 : 0377); | |
11389 | ||
11390 | #ifndef DOS_NT | |
11391 | init_sys_modes (tty); | |
34f04431 | 11392 | #endif |
a712a8c3 KL |
11393 | |
11394 | return Qnil; | |
11395 | } | |
033b73e2 | 11396 | |
a712a8c3 KL |
11397 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, |
11398 | doc: /* Set mode of reading keyboard input. | |
11399 | First arg INTERRUPT non-nil means use input interrupts; | |
11400 | nil means use CBREAK mode. | |
11401 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
11402 | (no effect except in CBREAK mode). | |
11403 | Third arg META t means accept 8-bit input (for a Meta key). | |
11404 | META nil means ignore the top bit, on the assumption it is parity. | |
11405 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
11406 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
11407 | See also `current-input-mode'. */) | |
11408 | (interrupt, flow, meta, quit) | |
11409 | Lisp_Object interrupt, flow, meta, quit; | |
11410 | { | |
11411 | Fset_input_interrupt_mode (interrupt); | |
11412 | Fset_output_flow_control (flow, Qnil); | |
11413 | Fset_input_meta_mode (meta, Qnil); | |
0a42be6d RF |
11414 | if (!NILP (quit)) |
11415 | Fset_quit_char (quit); | |
284f4730 JB |
11416 | return Qnil; |
11417 | } | |
80645119 JB |
11418 | |
11419 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
11420 | doc: /* Return information about the way Emacs currently reads keyboard input. |
11421 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
11422 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
11423 | nil, Emacs is using CBREAK mode. | |
11424 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
11425 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
11426 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
11427 | META nil means ignoring the top bit, on the assumption it is parity. | |
11428 | META is neither t nor nil if accepting 8-bit input and using | |
11429 | all 8 bits as the character code. | |
11430 | QUIT is the character Emacs currently uses to quit. | |
11431 | The elements of this list correspond to the arguments of | |
11432 | `set-input-mode'. */) | |
11433 | () | |
80645119 JB |
11434 | { |
11435 | Lisp_Object val[4]; | |
daf01701 | 11436 | struct frame *sf = XFRAME (selected_frame); |
80645119 JB |
11437 | |
11438 | val[0] = interrupt_input ? Qt : Qnil; | |
daf01701 KL |
11439 | if (FRAME_TERMCAP_P (sf)) |
11440 | { | |
11441 | val[1] = FRAME_TTY (sf)->flow_control ? Qt : Qnil; | |
c3b4957f KL |
11442 | val[2] = (FRAME_TTY (sf)->meta_key == 2 |
11443 | ? make_number (0) | |
11444 | : (CURTTY ()->meta_key == 1 ? Qt : Qnil)); | |
daf01701 KL |
11445 | } |
11446 | else | |
11447 | { | |
11448 | val[1] = Qnil; | |
11449 | val[2] = Qt; | |
11450 | } | |
bb9e9bed | 11451 | XSETFASTINT (val[3], quit_char); |
80645119 | 11452 | |
bf673a7a | 11453 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
11454 | } |
11455 | ||
a25f766a | 11456 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
11457 | doc: /* Return position information for pixel coordinates X and Y. |
11458 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 11459 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
11460 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
11461 | edge of the window. | |
ec026e7a KS |
11462 | |
11463 | The return value is similar to a mouse click position: | |
11464 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11465 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
11466 | The `posn-' functions access elements of such lists. */) | |
a25f766a KS |
11467 | (x, y, frame_or_window, whole) |
11468 | Lisp_Object x, y, frame_or_window, whole; | |
ec026e7a | 11469 | { |
f4a5a485 SM |
11470 | CHECK_NATNUM (x); |
11471 | CHECK_NATNUM (y); | |
11472 | ||
ec026e7a KS |
11473 | if (NILP (frame_or_window)) |
11474 | frame_or_window = selected_window; | |
11475 | ||
11476 | if (WINDOWP (frame_or_window)) | |
11477 | { | |
11478 | struct window *w; | |
11479 | ||
11480 | CHECK_LIVE_WINDOW (frame_or_window); | |
11481 | ||
11482 | w = XWINDOW (frame_or_window); | |
6507c4c7 KS |
11483 | XSETINT (x, (XINT (x) |
11484 | + WINDOW_LEFT_EDGE_X (w) | |
a25f766a KS |
11485 | + (NILP (whole) |
11486 | ? window_box_left_offset (w, TEXT_AREA) | |
6507c4c7 | 11487 | : 0))); |
ec026e7a KS |
11488 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
11489 | frame_or_window = w->frame; | |
11490 | } | |
11491 | ||
11492 | CHECK_LIVE_FRAME (frame_or_window); | |
11493 | ||
11494 | return make_lispy_position (XFRAME (frame_or_window), &x, &y, 0); | |
11495 | } | |
11496 | ||
11497 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
11498 | doc: /* Return position information for buffer POS in WINDOW. | |
11499 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
11500 | ||
11501 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 11502 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
11503 | a mouse click at the upper left corner of the glyph corresponding |
11504 | to the given buffer position: | |
11505 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11506 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 11507 | The `posn-' functions access elements of such lists. */) |
ec026e7a KS |
11508 | (pos, window) |
11509 | Lisp_Object pos, window; | |
11510 | { | |
11511 | Lisp_Object tem; | |
11512 | ||
6507c4c7 KS |
11513 | if (NILP (window)) |
11514 | window = selected_window; | |
11515 | ||
ec026e7a KS |
11516 | tem = Fpos_visible_in_window_p (pos, window, Qt); |
11517 | if (!NILP (tem)) | |
6507c4c7 KS |
11518 | { |
11519 | Lisp_Object x = XCAR (tem); | |
11520 | Lisp_Object y = XCAR (XCDR (tem)); | |
11521 | ||
11522 | /* Point invisible due to hscrolling? */ | |
11523 | if (XINT (x) < 0) | |
11524 | return Qnil; | |
11525 | tem = Fposn_at_x_y (x, y, window, Qnil); | |
11526 | } | |
11527 | ||
ec026e7a KS |
11528 | return tem; |
11529 | } | |
11530 | ||
284f4730 | 11531 | \f |
6c6083a9 | 11532 | /* |
c5fdd383 | 11533 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
11534 | */ |
11535 | void | |
c5fdd383 KH |
11536 | init_kboard (kb) |
11537 | KBOARD *kb; | |
6c6083a9 | 11538 | { |
217258d5 | 11539 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 11540 | kb->Vlast_command = Qnil; |
75045dcb | 11541 | kb->Vreal_last_command = Qnil; |
2e478293 | 11542 | kb->Vkeyboard_translate_table = Qnil; |
d0d3a311 | 11543 | kb->Vlast_repeatable_command = Qnil; |
d8bcf58e | 11544 | kb->Vprefix_arg = Qnil; |
75045dcb | 11545 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
11546 | kb->kbd_queue = Qnil; |
11547 | kb->kbd_queue_has_data = 0; | |
11548 | kb->immediate_echo = 0; | |
678e9d18 | 11549 | kb->echo_string = Qnil; |
c5fdd383 KH |
11550 | kb->echo_after_prompt = -1; |
11551 | kb->kbd_macro_buffer = 0; | |
11552 | kb->kbd_macro_bufsize = 0; | |
11553 | kb->defining_kbd_macro = Qnil; | |
11554 | kb->Vlast_kbd_macro = Qnil; | |
11555 | kb->reference_count = 0; | |
7c97ffdc | 11556 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 11557 | kb->system_key_syms = Qnil; |
70b8d0a4 | 11558 | kb->Vwindow_system = Qt; /* Unset. */ |
4f4a84ec | 11559 | kb->Vinput_decode_map = Fmake_sparse_keymap (Qnil); |
ac09dc1e KL |
11560 | kb->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
11561 | Fset_keymap_parent (kb->Vlocal_function_key_map, Vfunction_key_map); | |
9ba47203 | 11562 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
11563 | } |
11564 | ||
11565 | /* | |
c5fdd383 | 11566 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 11567 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
11568 | * it a second time. |
11569 | */ | |
e50b8090 | 11570 | static void |
c5fdd383 KH |
11571 | wipe_kboard (kb) |
11572 | KBOARD *kb; | |
6c6083a9 | 11573 | { |
c5fdd383 KH |
11574 | if (kb->kbd_macro_buffer) |
11575 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
11576 | } |
11577 | ||
e50b8090 | 11578 | #ifdef MULTI_KBOARD |
a122a38e GM |
11579 | |
11580 | /* Free KB and memory referenced from it. */ | |
11581 | ||
e50b8090 KH |
11582 | void |
11583 | delete_kboard (kb) | |
a122a38e | 11584 | KBOARD *kb; |
e50b8090 KH |
11585 | { |
11586 | KBOARD **kbp; | |
c60ee5e7 | 11587 | |
e50b8090 KH |
11588 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
11589 | if (*kbp == NULL) | |
11590 | abort (); | |
11591 | *kbp = kb->next_kboard; | |
a122a38e GM |
11592 | |
11593 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
11594 | if (kb == current_kboard |
11595 | && FRAMEP (selected_frame) | |
11596 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 11597 | { |
b3e6f69c KL |
11598 | current_kboard = FRAME_KBOARD (XFRAME (selected_frame)); |
11599 | single_kboard = 0; | |
a122a38e GM |
11600 | if (current_kboard == kb) |
11601 | abort (); | |
11602 | } | |
c60ee5e7 | 11603 | |
e50b8090 KH |
11604 | wipe_kboard (kb); |
11605 | xfree (kb); | |
11606 | } | |
a122a38e GM |
11607 | |
11608 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 11609 | |
dfcf069d | 11610 | void |
284f4730 JB |
11611 | init_keyboard () |
11612 | { | |
284f4730 JB |
11613 | /* This is correct before outermost invocation of the editor loop */ |
11614 | command_loop_level = -1; | |
11615 | immediate_quit = 0; | |
11616 | quit_char = Ctl ('g'); | |
24597608 | 11617 | Vunread_command_events = Qnil; |
86e5706b | 11618 | unread_command_char = -1; |
87dd9b9b | 11619 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 11620 | total_keys = 0; |
9deb415a | 11621 | recent_keys_index = 0; |
beecf6a1 KH |
11622 | kbd_fetch_ptr = kbd_buffer; |
11623 | kbd_store_ptr = kbd_buffer; | |
ae372f41 | 11624 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a9d77f1f | 11625 | do_mouse_tracking = Qnil; |
2eb6bfbe | 11626 | #endif |
284f4730 | 11627 | input_pending = 0; |
4c180390 JD |
11628 | interrupt_input_blocked = 0; |
11629 | interrupt_input_pending = 0; | |
284f4730 | 11630 | |
4c52b668 KH |
11631 | /* This means that command_loop_1 won't try to select anything the first |
11632 | time through. */ | |
11633 | internal_last_event_frame = Qnil; | |
11634 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 11635 | |
c5fdd383 | 11636 | #ifdef MULTI_KBOARD |
aaca43a1 | 11637 | current_kboard = initial_kboard; |
6c6083a9 | 11638 | #endif |
1bc973c2 | 11639 | /* Re-initialize the keyboard again. */ |
aaca43a1 | 11640 | wipe_kboard (current_kboard); |
c5fdd383 | 11641 | init_kboard (current_kboard); |
1bc973c2 SM |
11642 | /* A value of nil for Vwindow_system normally means a tty, but we also use |
11643 | it for the initial terminal since there is no window system there. */ | |
11644 | current_kboard->Vwindow_system = Qnil; | |
07d2b8de | 11645 | |
7b00d185 | 11646 | if (!noninteractive) |
284f4730 | 11647 | { |
3224dac1 KL |
11648 | /* Before multi-tty support, these handlers used to be installed |
11649 | only if the current session was a tty session. Now an Emacs | |
11650 | session may have multiple display types, so we always handle | |
11651 | SIGINT. There is special code in interrupt_signal to exit | |
4ca927b4 KL |
11652 | Emacs on SIGINT when there are no termcap frames on the |
11653 | controlling terminal. */ | |
284f4730 | 11654 | signal (SIGINT, interrupt_signal); |
cb5df6ae | 11655 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
11656 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
11657 | SIGQUIT and we can't tell which one it will give us. */ | |
11658 | signal (SIGQUIT, interrupt_signal); | |
11659 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 11660 | } |
284f4730 JB |
11661 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
11662 | #ifdef SIGIO | |
7a80a6f6 RS |
11663 | if (!noninteractive) |
11664 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 11665 | #endif /* SIGIO */ |
284f4730 JB |
11666 | |
11667 | /* Use interrupt input by default, if it works and noninterrupt input | |
11668 | has deficiencies. */ | |
11669 | ||
11670 | #ifdef INTERRUPT_INPUT | |
11671 | interrupt_input = 1; | |
11672 | #else | |
11673 | interrupt_input = 0; | |
11674 | #endif | |
11675 | ||
11676 | /* Our VMS input only works by interrupts, as of now. */ | |
11677 | #ifdef VMS | |
11678 | interrupt_input = 1; | |
11679 | #endif | |
11680 | ||
11681 | sigfree (); | |
11682 | dribble = 0; | |
11683 | ||
11684 | if (keyboard_init_hook) | |
11685 | (*keyboard_init_hook) (); | |
11686 | ||
11687 | #ifdef POLL_FOR_INPUT | |
11688 | poll_suppress_count = 1; | |
11689 | start_polling (); | |
11690 | #endif | |
11691 | } | |
11692 | ||
df0f2ba1 | 11693 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
11694 | event header symbols and put properties on them. */ |
11695 | struct event_head { | |
11696 | Lisp_Object *var; | |
11697 | char *name; | |
11698 | Lisp_Object *kind; | |
11699 | }; | |
11700 | ||
11701 | struct event_head head_table[] = { | |
7406e988 PJ |
11702 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
11703 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
11704 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
11705 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
11706 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 11707 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
11708 | /* `select-window' should be handled just like `switch-frame' |
11709 | in read_key_sequence. */ | |
11710 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
11711 | }; |
11712 | ||
dfcf069d | 11713 | void |
284f4730 JB |
11714 | syms_of_keyboard () |
11715 | { | |
58555d81 SM |
11716 | pending_funcalls = Qnil; |
11717 | ||
8e1e4240 GM |
11718 | Vlispy_mouse_stem = build_string ("mouse"); |
11719 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 11720 | |
9ea173e8 | 11721 | /* Tool-bars. */ |
7ee32cda GM |
11722 | QCimage = intern (":image"); |
11723 | staticpro (&QCimage); | |
11724 | ||
11725 | staticpro (&Qhelp_echo); | |
11726 | Qhelp_echo = intern ("help-echo"); | |
11727 | ||
cf0590c4 JD |
11728 | staticpro (&Qrtl); |
11729 | Qrtl = intern (":rtl"); | |
11730 | ||
e8886a1d RS |
11731 | staticpro (&item_properties); |
11732 | item_properties = Qnil; | |
11733 | ||
9ea173e8 GM |
11734 | staticpro (&tool_bar_item_properties); |
11735 | tool_bar_item_properties = Qnil; | |
11736 | staticpro (&tool_bar_items_vector); | |
11737 | tool_bar_items_vector = Qnil; | |
7ee32cda | 11738 | |
d5eecefb RS |
11739 | staticpro (&real_this_command); |
11740 | real_this_command = Qnil; | |
11741 | ||
d925fb39 RS |
11742 | Qtimer_event_handler = intern ("timer-event-handler"); |
11743 | staticpro (&Qtimer_event_handler); | |
11744 | ||
971e4c98 LT |
11745 | Qdisabled_command_function = intern ("disabled-command-function"); |
11746 | staticpro (&Qdisabled_command_function); | |
2e894dab | 11747 | |
284f4730 JB |
11748 | Qself_insert_command = intern ("self-insert-command"); |
11749 | staticpro (&Qself_insert_command); | |
11750 | ||
11751 | Qforward_char = intern ("forward-char"); | |
11752 | staticpro (&Qforward_char); | |
11753 | ||
11754 | Qbackward_char = intern ("backward-char"); | |
11755 | staticpro (&Qbackward_char); | |
11756 | ||
11757 | Qdisabled = intern ("disabled"); | |
11758 | staticpro (&Qdisabled); | |
11759 | ||
e58aa385 RS |
11760 | Qundefined = intern ("undefined"); |
11761 | staticpro (&Qundefined); | |
11762 | ||
86e5706b RS |
11763 | Qpre_command_hook = intern ("pre-command-hook"); |
11764 | staticpro (&Qpre_command_hook); | |
11765 | ||
11766 | Qpost_command_hook = intern ("post-command-hook"); | |
11767 | staticpro (&Qpost_command_hook); | |
11768 | ||
3ef14e46 RS |
11769 | Qdeferred_action_function = intern ("deferred-action-function"); |
11770 | staticpro (&Qdeferred_action_function); | |
11771 | ||
40932d1a RS |
11772 | Qcommand_hook_internal = intern ("command-hook-internal"); |
11773 | staticpro (&Qcommand_hook_internal); | |
11774 | ||
284f4730 JB |
11775 | Qfunction_key = intern ("function-key"); |
11776 | staticpro (&Qfunction_key); | |
13b5e56c | 11777 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 11778 | staticpro (&Qmouse_click); |
c16dab62 | 11779 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 GV |
11780 | Qlanguage_change = intern ("language-change"); |
11781 | staticpro (&Qlanguage_change); | |
07de30b9 | 11782 | #endif |
a24dc617 RS |
11783 | Qdrag_n_drop = intern ("drag-n-drop"); |
11784 | staticpro (&Qdrag_n_drop); | |
284f4730 | 11785 | |
4ebc27a5 | 11786 | Qsave_session = intern ("save-session"); |
6e604a9b | 11787 | staticpro (&Qsave_session); |
c60ee5e7 | 11788 | |
f66c49cc YM |
11789 | #ifdef MAC_OS |
11790 | Qmac_apple_event = intern ("mac-apple-event"); | |
11791 | staticpro (&Qmac_apple_event); | |
11792 | #endif | |
11793 | ||
033b73e2 MA |
11794 | #ifdef HAVE_DBUS |
11795 | Qdbus_event = intern ("dbus-event"); | |
11796 | staticpro (&Qdbus_event); | |
11797 | #endif | |
11798 | ||
598a9fa7 JB |
11799 | Qmenu_enable = intern ("menu-enable"); |
11800 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
11801 | Qmenu_alias = intern ("menu-alias"); |
11802 | staticpro (&Qmenu_alias); | |
11803 | QCenable = intern (":enable"); | |
11804 | staticpro (&QCenable); | |
11805 | QCvisible = intern (":visible"); | |
11806 | staticpro (&QCvisible); | |
7ee32cda GM |
11807 | QChelp = intern (":help"); |
11808 | staticpro (&QChelp); | |
e8886a1d RS |
11809 | QCfilter = intern (":filter"); |
11810 | staticpro (&QCfilter); | |
11811 | QCbutton = intern (":button"); | |
11812 | staticpro (&QCbutton); | |
74c1de23 RS |
11813 | QCkeys = intern (":keys"); |
11814 | staticpro (&QCkeys); | |
11815 | QCkey_sequence = intern (":key-sequence"); | |
11816 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
11817 | QCtoggle = intern (":toggle"); |
11818 | staticpro (&QCtoggle); | |
11819 | QCradio = intern (":radio"); | |
11820 | staticpro (&QCradio); | |
598a9fa7 | 11821 | |
284f4730 JB |
11822 | Qmode_line = intern ("mode-line"); |
11823 | staticpro (&Qmode_line); | |
e5d77022 JB |
11824 | Qvertical_line = intern ("vertical-line"); |
11825 | staticpro (&Qvertical_line); | |
3c370943 JB |
11826 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
11827 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
11828 | Qmenu_bar = intern ("menu-bar"); |
11829 | staticpro (&Qmenu_bar); | |
4bb994d1 | 11830 | |
ae372f41 | 11831 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
11832 | Qmouse_fixup_help_message = intern ("mouse-fixup-help-message"); |
11833 | staticpro (&Qmouse_fixup_help_message); | |
11834 | #endif | |
11835 | ||
4bb994d1 JB |
11836 | Qabove_handle = intern ("above-handle"); |
11837 | staticpro (&Qabove_handle); | |
11838 | Qhandle = intern ("handle"); | |
11839 | staticpro (&Qhandle); | |
11840 | Qbelow_handle = intern ("below-handle"); | |
11841 | staticpro (&Qbelow_handle); | |
db08707d RS |
11842 | Qup = intern ("up"); |
11843 | staticpro (&Qup); | |
11844 | Qdown = intern ("down"); | |
11845 | staticpro (&Qdown); | |
7ee32cda GM |
11846 | Qtop = intern ("top"); |
11847 | staticpro (&Qtop); | |
11848 | Qbottom = intern ("bottom"); | |
11849 | staticpro (&Qbottom); | |
11850 | Qend_scroll = intern ("end-scroll"); | |
11851 | staticpro (&Qend_scroll); | |
eef28553 SM |
11852 | Qratio = intern ("ratio"); |
11853 | staticpro (&Qratio); | |
284f4730 | 11854 | |
cd21b839 | 11855 | Qevent_kind = intern ("event-kind"); |
284f4730 | 11856 | staticpro (&Qevent_kind); |
88cb0656 JB |
11857 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
11858 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
11859 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
11860 | staticpro (&Qevent_symbol_element_mask); | |
11861 | Qmodifier_cache = intern ("modifier-cache"); | |
11862 | staticpro (&Qmodifier_cache); | |
284f4730 | 11863 | |
48e416d4 RS |
11864 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
11865 | staticpro (&Qrecompute_lucid_menubar); | |
11866 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
11867 | staticpro (&Qactivate_menubar_hook); | |
11868 | ||
f4eef8b4 RS |
11869 | Qpolling_period = intern ("polling-period"); |
11870 | staticpro (&Qpolling_period); | |
11871 | ||
7d18f9ae RS |
11872 | Qinput_method_function = intern ("input-method-function"); |
11873 | staticpro (&Qinput_method_function); | |
11874 | ||
d5eecefb RS |
11875 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
11876 | staticpro (&Qinput_method_exit_on_first_char); | |
11877 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
11878 | staticpro (&Qinput_method_use_echo_area); | |
11879 | ||
11880 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
11881 | Fset (Qinput_method_use_echo_area, Qnil); | |
11882 | ||
e18dfbf4 | 11883 | last_point_position_buffer = Qnil; |
bb0e1d19 | 11884 | last_point_position_window = Qnil; |
e18dfbf4 | 11885 | |
284f4730 JB |
11886 | { |
11887 | struct event_head *p; | |
11888 | ||
11889 | for (p = head_table; | |
11890 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
11891 | p++) | |
11892 | { | |
11893 | *p->var = intern (p->name); | |
11894 | staticpro (p->var); | |
11895 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 11896 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
11897 | } |
11898 | } | |
11899 | ||
8e1e4240 | 11900 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 11901 | staticpro (&button_down_location); |
8e1e4240 GM |
11902 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
11903 | staticpro (&mouse_syms); | |
13899bc1 | 11904 | wheel_syms = Fmake_vector (make_number (4), Qnil); |
8006e4bb | 11905 | staticpro (&wheel_syms); |
88cb0656 JB |
11906 | |
11907 | { | |
11908 | int i; | |
11909 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
11910 | ||
11911 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
11912 | for (i = 0; i < len; i++) | |
86e5706b RS |
11913 | if (modifier_names[i]) |
11914 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
11915 | staticpro (&modifier_symbols); |
11916 | } | |
11917 | ||
9deb415a JB |
11918 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
11919 | staticpro (&recent_keys); | |
11920 | ||
6569cc8d | 11921 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 11922 | staticpro (&this_command_keys); |
6569cc8d | 11923 | |
7d18f9ae RS |
11924 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
11925 | staticpro (&raw_keybuf); | |
11926 | ||
03b4122a BF |
11927 | Qextended_command_history = intern ("extended-command-history"); |
11928 | Fset (Qextended_command_history, Qnil); | |
11929 | staticpro (&Qextended_command_history); | |
11930 | ||
24597608 RS |
11931 | accent_key_syms = Qnil; |
11932 | staticpro (&accent_key_syms); | |
11933 | ||
284f4730 JB |
11934 | func_key_syms = Qnil; |
11935 | staticpro (&func_key_syms); | |
11936 | ||
a24dc617 RS |
11937 | drag_n_drop_syms = Qnil; |
11938 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 11939 | |
cd21b839 JB |
11940 | unread_switch_frame = Qnil; |
11941 | staticpro (&unread_switch_frame); | |
11942 | ||
fe412364 EN |
11943 | internal_last_event_frame = Qnil; |
11944 | staticpro (&internal_last_event_frame); | |
11945 | ||
11946 | read_key_sequence_cmd = Qnil; | |
11947 | staticpro (&read_key_sequence_cmd); | |
11948 | ||
759860a6 RS |
11949 | menu_bar_one_keymap_changed_items = Qnil; |
11950 | staticpro (&menu_bar_one_keymap_changed_items); | |
11951 | ||
7320c7de KS |
11952 | menu_bar_items_vector = Qnil; |
11953 | staticpro (&menu_bar_items_vector); | |
11954 | ||
638d3da0 CY |
11955 | help_form_saved_window_configs = Qnil; |
11956 | staticpro (&help_form_saved_window_configs); | |
11957 | ||
ff458d81 | 11958 | defsubr (&Scurrent_idle_time); |
58da34c7 | 11959 | defsubr (&Sevent_symbol_parse_modifiers); |
a1706c30 | 11960 | defsubr (&Sevent_convert_list); |
284f4730 | 11961 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11962 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11963 | defsubr (&Srecursive_edit); |
ae372f41 | 11964 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
284f4730 | 11965 | defsubr (&Strack_mouse); |
2eb6bfbe | 11966 | #endif |
284f4730 JB |
11967 | defsubr (&Sinput_pending_p); |
11968 | defsubr (&Scommand_execute); | |
11969 | defsubr (&Srecent_keys); | |
11970 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11971 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11972 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11973 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11974 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11975 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11976 | defsubr (&Ssuspend_emacs); |
11977 | defsubr (&Sabort_recursive_edit); | |
11978 | defsubr (&Sexit_recursive_edit); | |
11979 | defsubr (&Srecursion_depth); | |
11980 | defsubr (&Stop_level); | |
11981 | defsubr (&Sdiscard_input); | |
11982 | defsubr (&Sopen_dribble_file); | |
a712a8c3 KL |
11983 | defsubr (&Sset_input_interrupt_mode); |
11984 | defsubr (&Sset_output_flow_control); | |
11985 | defsubr (&Sset_input_meta_mode); | |
11986 | defsubr (&Sset_quit_char); | |
284f4730 | 11987 | defsubr (&Sset_input_mode); |
80645119 | 11988 | defsubr (&Scurrent_input_mode); |
284f4730 | 11989 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11990 | defsubr (&Sposn_at_point); |
11991 | defsubr (&Sposn_at_x_y); | |
284f4730 | 11992 | |
284f4730 | 11993 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 11994 | doc: /* Last input event that was part of a command. */); |
86e5706b | 11995 | |
186cf719 | 11996 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 11997 | doc: /* Last input event that was part of a command. */); |
284f4730 | 11998 | |
7d6de002 | 11999 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
12000 | doc: /* Last input event in a command, except for mouse menu events. |
12001 | Mouse menus give back keys that don't look like mouse events; | |
12002 | this variable holds the actual mouse event that led to the menu, | |
12003 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 12004 | |
284f4730 | 12005 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 12006 | doc: /* Last input event. */); |
86e5706b | 12007 | |
186cf719 | 12008 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 12009 | doc: /* Last input event. */); |
284f4730 | 12010 | |
24597608 | 12011 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 | 12012 | doc: /* List of events to be read as the command input. |
96f4f7ec KS |
12013 | These events are processed first, before actual keyboard input. |
12014 | Events read from this list are not normally added to `this-command-keys', | |
12015 | as they will already have been added once as they were read for the first time. | |
12016 | An element of the form (t . EVENT) forces EVENT to be added to that list. */); | |
7d18f9ae | 12017 | Vunread_command_events = Qnil; |
284f4730 | 12018 | |
86e5706b | 12019 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 12020 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 12021 | |
7d18f9ae | 12022 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 | 12023 | doc: /* List of events to be processed as input by input methods. |
748726f4 | 12024 | These events are processed before `unread-command-events' |
7d8d0914 | 12025 | and actual keyboard input, but are not given to `input-method-function'. */); |
7d18f9ae RS |
12026 | Vunread_post_input_method_events = Qnil; |
12027 | ||
12028 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
12029 | doc: /* List of events to be processed as input by input methods. |
12030 | These events are processed after `unread-command-events', but | |
748726f4 KH |
12031 | before actual keyboard input. |
12032 | If there's an active input method, the events are given to | |
12033 | `input-method-function'. */); | |
7d18f9ae RS |
12034 | Vunread_input_method_events = Qnil; |
12035 | ||
284f4730 | 12036 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
12037 | doc: /* Meta-prefix character code. |
12038 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 12039 | XSETINT (meta_prefix_char, 033); |
284f4730 | 12040 | |
6c7178b9 | 12041 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
12042 | doc: /* The last command executed. |
12043 | Normally a symbol with a function definition, but can be whatever was found | |
12044 | in the keymap, or whatever the variable `this-command' was set to by that | |
12045 | command. | |
12046 | ||
12047 | The value `mode-exit' is special; it means that the previous command | |
12048 | read an event that told it to exit, and it did so and unread that event. | |
12049 | In other words, the present command is the event that made the previous | |
12050 | command exit. | |
12051 | ||
12052 | The value `kill-region' is special; it means that the previous command | |
2a42d440 KL |
12053 | was a kill command. |
12054 | ||
6ed8eeff | 12055 | `last-command' has a separate binding for each terminal device. |
2a42d440 | 12056 | See Info node `(elisp)Multiple displays'. */); |
284f4730 | 12057 | |
75045dcb | 12058 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 12059 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 12060 | |
d0d3a311 MR |
12061 | DEFVAR_KBOARD ("last-repeatable-command", Vlast_repeatable_command, |
12062 | doc: /* Last command that may be repeated. | |
12063 | The last command executed that was not bound to an input event. | |
12064 | This is the command `repeat' will try to repeat. */); | |
12065 | ||
d5eecefb | 12066 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
12067 | doc: /* The command now being executed. |
12068 | The command can set this variable; whatever is put here | |
12069 | will be in `last-command' during the following command. */); | |
d5eecefb | 12070 | Vthis_command = Qnil; |
284f4730 | 12071 | |
025ae953 CY |
12072 | DEFVAR_LISP ("this-command-keys-shift-translated", |
12073 | &Vthis_command_keys_shift_translated, | |
12074 | doc: /* Non-nil if the key sequence activating this command was shift-translated. | |
12075 | Shift-translation occurs when there is no binding for the key sequence | |
12076 | as entered, but a binding was found by changing an upper-case letter | |
12077 | to lower-case, or a shifted function key to an unshifted one. */); | |
12078 | Vthis_command_keys_shift_translated = Qnil; | |
12079 | ||
8b9940e6 | 12080 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
12081 | doc: /* The command bound to the current key sequence before remapping. |
12082 | It equals `this-command' if the original command was not remapped through | |
12083 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 12084 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
12085 | Vthis_original_command = Qnil; |
12086 | ||
284f4730 | 12087 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
12088 | doc: /* *Number of input events between auto-saves. |
12089 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
12090 | auto_save_interval = 300; |
12091 | ||
12092 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
12093 | doc: /* *Number of seconds idle time before auto-save. |
12094 | Zero or nil means disable auto-saving due to idleness. | |
12095 | After auto-saving due to this many seconds of idle time, | |
12096 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 12097 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 12098 | |
39aab679 | 12099 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
12100 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
12101 | The value may be integer or floating point. */); | |
39aab679 | 12102 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
12103 | |
12104 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
12105 | doc: /* *Interval between polling for input during Lisp execution. |
12106 | The reason for polling is to make C-g work to stop a running program. | |
12107 | Polling is needed only when using X windows and SIGIO does not work. | |
12108 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 12109 | polling_period = 2; |
df0f2ba1 | 12110 | |
564dc952 | 12111 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 | 12112 | doc: /* *Maximum time between mouse clicks to make a double-click. |
05e0ac99 JB |
12113 | Measured in milliseconds. The value nil means disable double-click |
12114 | recognition; t means double-clicks have no time limit and are detected | |
4707d2d0 | 12115 | by position only. */); |
aab06933 | 12116 | Vdouble_click_time = make_number (500); |
fbcd35bd | 12117 | |
222d557c | 12118 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
12119 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
12120 | On window-system frames, value is the number of pixels the mouse may have | |
12121 | moved horizontally or vertically between two clicks to make a double-click. | |
12122 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
12123 | instead of pixels. |
12124 | ||
12125 | This variable is also the threshold for motion of the mouse | |
12126 | to count as a drag. */); | |
222d557c | 12127 | double_click_fuzz = 3; |
c60ee5e7 | 12128 | |
03361bcc | 12129 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 12130 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
12131 | inhibit_local_menu_bar_menus = 0; |
12132 | ||
284f4730 | 12133 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
12134 | doc: /* Number of complete key sequences read as input so far. |
12135 | This includes key sequences read from keyboard macros. | |
12136 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
12137 | num_input_keys = 0; |
12138 | ||
c43b1734 | 12139 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
12140 | doc: /* Number of input events read from the keyboard so far. |
12141 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 12142 | num_nonmacro_input_events = 0; |
fa90970d | 12143 | |
4c52b668 | 12144 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
12145 | doc: /* The frame in which the most recently read event occurred. |
12146 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
12147 | Vlast_event_frame = Qnil; |
12148 | ||
fa90970d RS |
12149 | /* This variable is set up in sysdep.c. */ |
12150 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 12151 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 12152 | |
7e85b935 | 12153 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
12154 | doc: /* Character to recognize as meaning Help. |
12155 | When it is read, do `(eval help-form)', and display result if it's a string. | |
12156 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 12157 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 12158 | |
ecb7cb34 | 12159 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
12160 | doc: /* List of input events to recognize as meaning Help. |
12161 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
12162 | Vhelp_event_list = Qnil; |
12163 | ||
284f4730 | 12164 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
12165 | doc: /* Form to execute when character `help-char' is read. |
12166 | If the form returns a string, that string is displayed. | |
12167 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
12168 | Vhelp_form = Qnil; |
12169 | ||
7e85b935 | 12170 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
12171 | doc: /* Command to run when `help-char' character follows a prefix key. |
12172 | This command is used only when there is no actual binding | |
12173 | for that character after that prefix key. */); | |
7e85b935 RS |
12174 | Vprefix_help_command = Qnil; |
12175 | ||
284f4730 | 12176 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
12177 | doc: /* Form to evaluate when Emacs starts up. |
12178 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
12179 | Vtop_level = Qnil; |
12180 | ||
2e478293 KL |
12181 | DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table, |
12182 | doc: /* Translate table for local keyboard input, or nil. | |
669de2fb LT |
12183 | If non-nil, the value should be a char-table. Each character read |
12184 | from the keyboard is looked up in this char-table. If the value found | |
12185 | there is non-nil, then it is used instead of the actual input character. | |
12186 | ||
12187 | The value can also be a string or vector, but this is considered obsolete. | |
12188 | If it is a string or vector of length N, character codes N and up are left | |
12189 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
12190 | |
12191 | This is applied to the characters supplied to input methods, not their | |
2e478293 KL |
12192 | output. See also `translation-table-for-input'. |
12193 | ||
6ed8eeff KL |
12194 | This variable has a separate binding for each terminal. See Info node |
12195 | `(elisp)Multiple displays'. */); | |
284f4730 | 12196 | |
8026024c | 12197 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
12198 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
12199 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
12200 | cannot_suspend = 0; |
12201 | ||
284f4730 | 12202 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
12203 | doc: /* Non-nil means prompt with menus when appropriate. |
12204 | This is done when reading from a keymap that has a prompt string, | |
12205 | for elements that have prompt strings. | |
12206 | The menu is displayed on the screen | |
12207 | if X menus were enabled at configuration | |
12208 | time and the previous event was a mouse click prefix key. | |
12209 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
12210 | menu_prompting = 1; |
12211 | ||
12212 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
12213 | doc: /* Character to see next line of menu prompt. |
12214 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 12215 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
12216 | |
12217 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
12218 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
12219 | Emacs applies the modifiers of the character stored here to each keyboard | |
12220 | character it reads. For example, after evaluating the expression | |
12221 | (setq extra-keyboard-modifiers ?\\C-x) | |
12222 | all input characters will have the control modifier applied to them. | |
12223 | ||
12224 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
12225 | not count as a control character; rather, it counts as a character | |
12226 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
12227 | cancels any modification. */); | |
9fa4395d | 12228 | extra_keyboard_modifiers = 0; |
86e5706b RS |
12229 | |
12230 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
12231 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
12232 | The command loop sets this to nil before each command, | |
12233 | and tests the value when the command returns. | |
12234 | Buffer modification stores t in this variable. */); | |
86e5706b | 12235 | Vdeactivate_mark = Qnil; |
5c4cc82a SM |
12236 | Qdeactivate_mark = intern ("deactivate-mark"); |
12237 | staticpro (&Qdeactivate_mark); | |
86e5706b | 12238 | |
b0f2a7bf | 12239 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 12240 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
12241 | Vcommand_hook_internal = Qnil; |
12242 | ||
86e5706b | 12243 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
12244 | doc: /* Normal hook run before each command is executed. |
12245 | If an unhandled error happens in running this hook, | |
12246 | the hook value is set to nil, since otherwise the error | |
12247 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
12248 | Vpre_command_hook = Qnil; |
12249 | ||
12250 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
12251 | doc: /* Normal hook run after each command is executed. |
12252 | If an unhandled error happens in running this hook, | |
12253 | the hook value is set to nil, since otherwise the error | |
12254 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 12255 | Vpost_command_hook = Qnil; |
48e416d4 | 12256 | |
cf24f894 RS |
12257 | #if 0 |
12258 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 12259 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
12260 | #endif |
12261 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
c8e16a02 | 12262 | staticpro (&Qecho_area_clear_hook); |
cf24f894 | 12263 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 12264 | |
48e416d4 | 12265 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 12266 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 12267 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 12268 | |
9f9c0e27 | 12269 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
12270 | doc: /* List of menu bar items to move to the end of the menu bar. |
12271 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 12272 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 12273 | |
217258d5 KH |
12274 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
12275 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
12276 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
12277 | If this variable is non-nil, it is used as a keymap instead of the | |
12278 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
12279 | It also replaces `overriding-local-map'. |
12280 | ||
4707d2d0 | 12281 | This variable is intended to let commands such as `universal-argument' |
2a42d440 KL |
12282 | set up a different keymap for reading the next command. |
12283 | ||
6ed8eeff KL |
12284 | `overriding-terminal-local-map' has a separate binding for each |
12285 | terminal device. | |
2a42d440 | 12286 | See Info node `(elisp)Multiple displays'. */); |
217258d5 | 12287 | |
9dd3131c | 12288 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 | 12289 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
12290 | If this variable is non-nil, it is used as a keymap--replacing the |
12291 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
12292 | Voverriding_local_map = Qnil; |
12293 | ||
d0a49716 | 12294 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
12295 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
12296 | Otherwise, the menu bar continues to reflect the buffer's local map | |
12297 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
12298 | Voverriding_local_map_menu_flag = Qnil; |
12299 | ||
7f07d5ca | 12300 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 12301 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
12302 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
12303 | ||
71edead1 | 12304 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 12305 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 12306 | |
7c97ffdc | 12307 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
12308 | doc: /* Alist of system-specific X windows key symbols. |
12309 | Each element should have the form (N . SYMBOL) where N is the | |
12310 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
2a42d440 KL |
12311 | and SYMBOL is its name. |
12312 | ||
6ed8eeff | 12313 | `system-key-alist' has a separate binding for each terminal device. |
e93b2956 | 12314 | See Info node `(elisp)Multiple displays'. */); |
8a792f3a | 12315 | |
ac09dc1e | 12316 | DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map, |
e93b2956 | 12317 | doc: /* Keymap that translates key sequences to key sequences during input. |
4f4a84ec SM |
12318 | This is used mainly for mapping key sequences into some preferred |
12319 | key events (symbols). | |
f01b6d17 KL |
12320 | |
12321 | The `read-key-sequence' function replaces any subsequence bound by | |
7a81ec10 KL |
12322 | `local-function-key-map' with its binding. More precisely, when the |
12323 | active keymaps have no binding for the current key sequence but | |
12324 | `local-function-key-map' binds a suffix of the sequence to a vector or | |
12325 | string, `read-key-sequence' replaces the matching suffix with its | |
12326 | binding, and continues with the new sequence. | |
f01b6d17 | 12327 | |
feba0cd6 KL |
12328 | If the binding is a function, it is called with one argument (the prompt) |
12329 | and its return value (a key sequence) is used. | |
12330 | ||
7a81ec10 KL |
12331 | The events that come from bindings in `local-function-key-map' are not |
12332 | themselves looked up in `local-function-key-map'. | |
f01b6d17 | 12333 | |
7a81ec10 | 12334 | For example, suppose `local-function-key-map' binds `ESC O P' to [f1]. |
f01b6d17 | 12335 | Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing |
7a81ec10 KL |
12336 | `C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key, |
12337 | typing `ESC O P x' would return [f1 x]. | |
f01b6d17 | 12338 | |
6ed8eeff | 12339 | `local-function-key-map' has a separate binding for each terminal |
7a81ec10 | 12340 | device. See Info node `(elisp)Multiple displays'. If you need to |
6ed8eeff | 12341 | define a binding on all terminals, change `function-key-map' |
7a81ec10 | 12342 | instead. Initially, `local-function-key-map' is an empty keymap that |
6ed8eeff | 12343 | has `function-key-map' as its parent on all terminal devices. */); |
f01b6d17 | 12344 | |
4f4a84ec SM |
12345 | DEFVAR_KBOARD ("input-decode-map", Vinput_decode_map, |
12346 | doc: /* Keymap that decodes input escape sequences. | |
12347 | This is used mainly for mapping ASCII function key sequences into | |
12348 | real Emacs function key events (symbols). | |
12349 | ||
12350 | The `read-key-sequence' function replaces any subsequence bound by | |
12351 | `local-function-key-map' with its binding. Contrary to `function-key-map', | |
12352 | this map applies its rebinding regardless of the presence of an ordinary | |
12353 | binding. So it is more like `key-translation-map' except that it applies | |
12354 | before `function-key-map' rather than after. | |
12355 | ||
12356 | If the binding is a function, it is called with one argument (the prompt) | |
12357 | and its return value (a key sequence) is used. | |
12358 | ||
12359 | The events that come from bindings in `input-decode-map' are not | |
12360 | themselves looked up in `input-decode-map'. | |
12361 | ||
12362 | This variable is keyboard-local. */); | |
12363 | ||
ac09dc1e KL |
12364 | DEFVAR_LISP ("function-key-map", &Vfunction_key_map, |
12365 | doc: /* The parent keymap of all `local-function-key-map' instances. | |
6ed8eeff | 12366 | Function key definitions that apply to all terminal devices should go |
7a81ec10 KL |
12367 | here. If a mapping is defined in both the current |
12368 | `local-function-key-map' binding and this variable, then the local | |
12369 | definition will take precendence. */); | |
ac09dc1e | 12370 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
033b73e2 | 12371 | |
4f4a84ec SM |
12372 | DEFVAR_LISP ("key-translation-map", &Vkey_translation_map, |
12373 | doc: /* Keymap of key translations that can override keymaps. | |
4ea81208 KL |
12374 | This keymap works like `function-key-map', but comes after that, |
12375 | and its non-prefix bindings override ordinary bindings. | |
4f4a84ec | 12376 | Another difference is that it is global rather than keyboard-local. */); |
ac09dc1e | 12377 | Vkey_translation_map = Fmake_sparse_keymap (Qnil); |
8a792f3a RS |
12378 | |
12379 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
12380 | doc: /* List of deferred actions to be performed at a later time. |
12381 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
12382 | Vdeferred_action_list = Qnil; |
12383 | ||
12384 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
12385 | doc: /* Function to call to handle deferred actions, after each command. |
12386 | This function is called with no arguments after each command | |
12387 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 12388 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
12389 | |
12390 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
12391 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
12392 | The value can be a length of time to show the message for. | |
12393 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 12394 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 12395 | |
c04cbc3b | 12396 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 12397 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 12398 | Vtimer_list = Qnil; |
d9d4c147 KH |
12399 | |
12400 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 12401 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 12402 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
12403 | |
12404 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
12405 | doc: /* If non-nil, the function that implements the current input method. |
12406 | It's called with one argument, a printing character that was just read. | |
12407 | \(That means a character with code 040...0176.) | |
12408 | Typically this function uses `read-event' to read additional events. | |
12409 | When it does so, it should first bind `input-method-function' to nil | |
12410 | so it will not be called recursively. | |
12411 | ||
12412 | The function should return a list of zero or more events | |
12413 | to be used as input. If it wants to put back some events | |
12414 | to be reconsidered, separately, by the input method, | |
12415 | it can add them to the beginning of `unread-command-events'. | |
12416 | ||
12417 | The input method function can find in `input-method-previous-method' | |
12418 | the previous echo area message. | |
12419 | ||
12420 | The input method function should refer to the variables | |
12421 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
12422 | for guidance on what to do. */); | |
7d18f9ae | 12423 | Vinput_method_function = Qnil; |
d5eecefb RS |
12424 | |
12425 | DEFVAR_LISP ("input-method-previous-message", | |
12426 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
12427 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
12428 | This variable exists because `read-event' clears the echo area | |
12429 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 12430 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
12431 | |
12432 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
12433 | doc: /* If non-nil, the function that implements the display of help. |
12434 | It's called with one argument, the help string to display. */); | |
7ee32cda | 12435 | Vshow_help_function = Qnil; |
adf5cb9c KH |
12436 | |
12437 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
12438 | doc: /* If non-nil, suppress point adjustment after executing a command. |
12439 | ||
12440 | After a command is executed, if point is moved into a region that has | |
12441 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
12442 | the boundary of the region. But, when a command sets this variable to |
12443 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
12444 | |
12445 | This variable is set to nil before reading a command, and is checked | |
12446 | just after executing the command. */); | |
adf5cb9c KH |
12447 | Vdisable_point_adjustment = Qnil; |
12448 | ||
12449 | DEFVAR_LISP ("global-disable-point-adjustment", | |
12450 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
12451 | doc: /* *If non-nil, always suppress point adjustment. |
12452 | ||
12453 | The default value is nil, in which case, point adjustment are | |
12454 | suppressed only after special commands that set | |
12455 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 12456 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 12457 | |
00392ce6 | 12458 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, |
4707d2d0 PJ |
12459 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
12460 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 12461 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da KS |
12462 | |
12463 | DEFVAR_LISP ("throw-on-input", &Vthrow_on_input, | |
12464 | doc: /* If non-nil, any keyboard input throws to this symbol. | |
12465 | The value of that variable is passed to `quit-flag' and later causes a | |
12466 | peculiar kind of quitting. */); | |
12467 | Vthrow_on_input = Qnil; | |
9d56e0da | 12468 | |
04d8c47d RS |
12469 | DEFVAR_LISP ("command-error-function", &Vcommand_error_function, |
12470 | doc: /* If non-nil, function to output error messages. | |
12471 | The arguments are the error data, a list of the form | |
12472 | (SIGNALED-CONDITIONS . SIGNAL-DATA) | |
12473 | such as just as `condition-case' would bind its variable to, | |
12474 | the context (a string which normally goes at the start of the message), | |
12475 | and the Lisp function within which the error was signaled. */); | |
12476 | Vcommand_error_function = Qnil; | |
12477 | ||
9d56e0da EZ |
12478 | DEFVAR_LISP ("enable-disabled-menus-and-buttons", |
12479 | &Venable_disabled_menus_and_buttons, | |
12480 | doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar. | |
12481 | ||
12482 | Help functions bind this to allow help on disabled menu items | |
12483 | and tool-bar buttons. */); | |
12484 | Venable_disabled_menus_and_buttons = Qnil; | |
1bc973c2 SM |
12485 | |
12486 | #ifdef MULTI_KBOARD | |
12487 | /* Create the initial keyboard. */ | |
12488 | initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); | |
12489 | init_kboard (initial_kboard); | |
12490 | /* Vwindow_system is left at t for now. */ | |
12491 | initial_kboard->next_kboard = all_kboards; | |
12492 | all_kboards = initial_kboard; | |
033b73e2 | 12493 | #endif |
284f4730 JB |
12494 | } |
12495 | ||
dfcf069d | 12496 | void |
284f4730 JB |
12497 | keys_of_keyboard () |
12498 | { | |
12499 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
12500 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
12501 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
12502 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
12503 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
12504 | |
12505 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
12506 | "handle-delete-frame"); | |
a18bf897 SM |
12507 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
12508 | current-prefix-arg, as is done in `handle-switch-frame'. | |
12509 | But `handle-switch-frame is not run from the special-map. | |
12510 | Commands from that map are run in a special way that automatically | |
12511 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
12512 | redundant but harmful: | |
12513 | - C-u C-x v = | |
12514 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
12515 | - after the first prompt, the exit-minibuffer-hook is run which may | |
12516 | iconify a frame and thus push a `iconify-frame' event. | |
12517 | - after running exit-minibuffer-hook, current-prefix-arg is | |
12518 | restored to the non-nil value it had before the prompt. | |
12519 | - we enter the second prompt. | |
12520 | current-prefix-arg is non-nil, prefix-arg is nil. | |
12521 | - before running the first real event, we run the special iconify-frame | |
12522 | event, but we pass the `special' arg to execute-command so | |
12523 | current-prefix-arg and prefix-arg are left untouched. | |
12524 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
12525 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 12526 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 12527 | "ignore"); |
7f07d5ca | 12528 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 12529 | "ignore"); |
a4e19f6e SM |
12530 | /* Handling it at such a low-level causes read_key_sequence to get |
12531 | * confused because it doesn't realize that the current_buffer was | |
12532 | * changed by read_char. | |
6b61353c | 12533 | * |
a4e19f6e SM |
12534 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
12535 | * "handle-select-window"); */ | |
4ebc27a5 JD |
12536 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
12537 | "handle-save-session"); | |
033b73e2 MA |
12538 | |
12539 | #ifdef HAVE_DBUS | |
12540 | /* Define a special event which is raised for dbus callback | |
12541 | functions. */ | |
12542 | initial_define_lispy_key (Vspecial_event_map, "dbus-event", | |
12543 | "dbus-handle-event"); | |
12544 | #endif | |
284f4730 | 12545 | } |
1269a761 SM |
12546 | |
12547 | /* Mark the pointers in the kboard objects. | |
12548 | Called by the Fgarbage_collector. */ | |
12549 | void | |
12550 | mark_kboards () | |
12551 | { | |
12552 | KBOARD *kb; | |
12553 | Lisp_Object *p; | |
12554 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
12555 | { | |
12556 | if (kb->kbd_macro_buffer) | |
12557 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
12558 | mark_object (*p); |
12559 | mark_object (kb->Voverriding_terminal_local_map); | |
12560 | mark_object (kb->Vlast_command); | |
12561 | mark_object (kb->Vreal_last_command); | |
1d33157f | 12562 | mark_object (kb->Vkeyboard_translate_table); |
d0d3a311 | 12563 | mark_object (kb->Vlast_repeatable_command); |
3ebb8729 SM |
12564 | mark_object (kb->Vprefix_arg); |
12565 | mark_object (kb->Vlast_prefix_arg); | |
12566 | mark_object (kb->kbd_queue); | |
12567 | mark_object (kb->defining_kbd_macro); | |
12568 | mark_object (kb->Vlast_kbd_macro); | |
12569 | mark_object (kb->Vsystem_key_alist); | |
12570 | mark_object (kb->system_key_syms); | |
70b8d0a4 | 12571 | mark_object (kb->Vwindow_system); |
4f4a84ec | 12572 | mark_object (kb->Vinput_decode_map); |
ac09dc1e | 12573 | mark_object (kb->Vlocal_function_key_map); |
3ebb8729 SM |
12574 | mark_object (kb->Vdefault_minibuffer_frame); |
12575 | mark_object (kb->echo_string); | |
1269a761 SM |
12576 | } |
12577 | { | |
12578 | struct input_event *event; | |
12579 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
12580 | { | |
12581 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
12582 | event = kbd_buffer; | |
e3f6e7c7 KS |
12583 | if (event->kind != SELECTION_REQUEST_EVENT |
12584 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
12585 | { |
12586 | mark_object (event->x); | |
12587 | mark_object (event->y); | |
12588 | } | |
3ebb8729 SM |
12589 | mark_object (event->frame_or_window); |
12590 | mark_object (event->arg); | |
1269a761 SM |
12591 | } |
12592 | } | |
12593 | } | |
6b61353c KH |
12594 | |
12595 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
12596 | (do not change this comment) */ |