Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
526a058f | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000, 2001 |
39aab679 | 3 | Free Software Foundation, Inc. |
284f4730 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 9 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
284f4730 | 21 | |
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
284f4730 | 24 | #include <stdio.h> |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
27 | #include "lisp.h" | |
28 | #include "termhooks.h" | |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.h" |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.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 | ||
80e4aa30 RS |
47 | #ifdef MSDOS |
48 | #include "msdos.h" | |
49 | #include <time.h> | |
50 | #else /* not MSDOS */ | |
284f4730 JB |
51 | #ifndef VMS |
52 | #include <sys/ioctl.h> | |
284f4730 | 53 | #endif |
80e4aa30 | 54 | #endif /* not MSDOS */ |
284f4730 | 55 | |
52baf19e | 56 | #include "syssignal.h" |
6ef5b54f | 57 | #include "systty.h" |
52baf19e | 58 | |
03cee6ae GM |
59 | #include <sys/types.h> |
60 | #ifdef HAVE_UNISTD_H | |
61 | #include <unistd.h> | |
62 | #endif | |
63 | ||
c5e3b6c5 RS |
64 | /* This is to get the definitions of the XK_ symbols. */ |
65 | #ifdef HAVE_X_WINDOWS | |
66 | #include "xterm.h" | |
67 | #endif | |
68 | ||
e98a93eb GV |
69 | #ifdef HAVE_NTGUI |
70 | #include "w32term.h" | |
71 | #endif /* HAVE_NTGUI */ | |
72 | ||
1a578e9b AC |
73 | #ifdef macintosh |
74 | #include "macterm.h" | |
75 | #endif | |
76 | ||
0c2611c5 RS |
77 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
78 | #include "systime.h" | |
79 | ||
02639609 | 80 | #ifndef USE_CRT_DLL |
52baf19e | 81 | extern int errno; |
02639609 | 82 | #endif |
52baf19e | 83 | |
9ac0d9e0 JB |
84 | /* Variables for blockinput.h: */ |
85 | ||
86 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 87 | int interrupt_input_blocked; |
9ac0d9e0 JB |
88 | |
89 | /* Nonzero means an input interrupt has arrived | |
90 | during the current critical section. */ | |
63927c41 | 91 | int interrupt_input_pending; |
9ac0d9e0 JB |
92 | |
93 | ||
437f6112 RS |
94 | /* File descriptor to use for input. */ |
95 | extern int input_fd; | |
284f4730 | 96 | |
e98a93eb | 97 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 98 | /* Make all keyboard buffers much bigger when using X windows. */ |
f019cded | 99 | #ifdef macintosh |
1a578e9b | 100 | /* But not too big (local data > 32K error) if on macintosh. */ |
f019cded RS |
101 | #define KBD_BUFFER_SIZE 512 |
102 | #else | |
284f4730 | 103 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 104 | #endif |
284f4730 | 105 | #else /* No X-windows, character input */ |
de11c1ea | 106 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
107 | #endif /* No X-windows */ |
108 | ||
222d557c GM |
109 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
110 | ||
284f4730 JB |
111 | /* Following definition copied from eval.c */ |
112 | ||
113 | struct backtrace | |
114 | { | |
115 | struct backtrace *next; | |
116 | Lisp_Object *function; | |
117 | Lisp_Object *args; /* Points to vector of args. */ | |
118 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
119 | args points to slot holding list of | |
120 | unevalled args */ | |
121 | char evalargs; | |
122 | }; | |
123 | ||
c5fdd383 KH |
124 | #ifdef MULTI_KBOARD |
125 | KBOARD *initial_kboard; | |
126 | KBOARD *current_kboard; | |
127 | KBOARD *all_kboards; | |
1e8bd3da | 128 | int single_kboard; |
6c6083a9 | 129 | #else |
c5fdd383 | 130 | KBOARD the_only_kboard; |
6c6083a9 | 131 | #endif |
612b78ef | 132 | |
284f4730 JB |
133 | /* Non-nil disable property on a command means |
134 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 135 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
136 | |
137 | #define NUM_RECENT_KEYS (100) | |
138 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
139 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 140 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 141 | |
6569cc8d JB |
142 | /* Vector holding the key sequence that invoked the current command. |
143 | It is reused for each command, and it may be longer than the current | |
144 | sequence; this_command_key_count indicates how many elements | |
145 | actually mean something. | |
146 | It's easier to staticpro a single Lisp_Object than an array. */ | |
147 | Lisp_Object this_command_keys; | |
148 | int this_command_key_count; | |
284f4730 | 149 | |
7d18f9ae RS |
150 | /* This vector is used as a buffer to record the events that were actually read |
151 | by read_key_sequence. */ | |
152 | Lisp_Object raw_keybuf; | |
153 | int raw_keybuf_count; | |
154 | ||
155 | #define GROW_RAW_KEYBUF \ | |
156 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
157 | { \ | |
158 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
159 | Lisp_Object new; \ | |
160 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
161 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
162 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
163 | raw_keybuf = new; \ | |
164 | } | |
165 | ||
6321824f RS |
166 | /* Number of elements of this_command_keys |
167 | that precede this key sequence. */ | |
168 | int this_single_command_key_start; | |
169 | ||
71918b75 RS |
170 | /* Record values of this_command_key_count and echo_length () |
171 | before this command was read. */ | |
172 | static int before_command_key_count; | |
173 | static int before_command_echo_length; | |
174 | /* Values of before_command_key_count and before_command_echo_length | |
175 | saved by reset-this-command-lengths. */ | |
176 | static int before_command_key_count_1; | |
177 | static int before_command_echo_length_1; | |
178 | /* Flag set by reset-this-command-lengths, | |
179 | saying to reset the lengths when add_command_key is called. */ | |
180 | static int before_command_restore_flag; | |
181 | ||
284f4730 JB |
182 | extern int minbuf_level; |
183 | ||
a59b172a RS |
184 | extern int message_enable_multibyte; |
185 | ||
284f4730 JB |
186 | extern struct backtrace *backtrace_list; |
187 | ||
7ee32cda GM |
188 | /* If non-nil, the function that implements the display of help. |
189 | It's called with one argument, the help string to display. */ | |
190 | ||
191 | Lisp_Object Vshow_help_function; | |
192 | ||
f0c1cc56 GM |
193 | /* If a string, the message displayed before displaying a help-echo |
194 | in the echo area. */ | |
195 | ||
196 | Lisp_Object Vpre_help_message; | |
197 | ||
284f4730 | 198 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 199 | |
284f4730 JB |
200 | static int menu_prompting; |
201 | ||
202 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 203 | |
284f4730 JB |
204 | static Lisp_Object menu_prompt_more_char; |
205 | ||
206 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 207 | |
284f4730 JB |
208 | static jmp_buf getcjmp; |
209 | ||
210 | /* True while doing kbd input. */ | |
211 | int waiting_for_input; | |
212 | ||
213 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 214 | |
c843d6c6 | 215 | int echoing; |
284f4730 | 216 | |
985f9f66 GM |
217 | /* Non-null means we can start echoing at the next input pause even |
218 | though there is something in the echo area. */ | |
219 | ||
220 | static struct kboard *ok_to_echo_at_next_pause; | |
221 | ||
59a84f8e GM |
222 | /* The kboard last echoing, or null for none. Reset to 0 in |
223 | cancel_echoing. If non-null, and a current echo area message | |
224 | exists, and echo_message_buffer is eq to the current message | |
225 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 GM |
226 | |
227 | static struct kboard *echo_kboard; | |
1fc93d49 | 228 | |
59a84f8e GM |
229 | /* The buffer used for echoing. Set in echo_now, reset in |
230 | cancel_echoing. */ | |
231 | ||
c843d6c6 | 232 | Lisp_Object echo_message_buffer; |
59a84f8e | 233 | |
03361bcc RS |
234 | /* Nonzero means disregard local maps for the menu bar. */ |
235 | static int inhibit_local_menu_bar_menus; | |
236 | ||
80e4aa30 | 237 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
238 | int immediate_quit; |
239 | ||
fa90970d RS |
240 | /* The user's ERASE setting. */ |
241 | Lisp_Object Vtty_erase_char; | |
242 | ||
284f4730 | 243 | /* Character to recognize as the help char. */ |
7e85b935 | 244 | Lisp_Object Vhelp_char; |
284f4730 | 245 | |
ecb7cb34 KH |
246 | /* List of other event types to recognize as meaning "help". */ |
247 | Lisp_Object Vhelp_event_list; | |
248 | ||
284f4730 JB |
249 | /* Form to execute when help char is typed. */ |
250 | Lisp_Object Vhelp_form; | |
251 | ||
7e85b935 RS |
252 | /* Command to run when the help character follows a prefix key. */ |
253 | Lisp_Object Vprefix_help_command; | |
254 | ||
9f9c0e27 RS |
255 | /* List of items that should move to the end of the menu bar. */ |
256 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 257 | |
6526ab49 RS |
258 | /* Non-nil means show the equivalent key-binding for |
259 | any M-x command that has one. | |
260 | The value can be a length of time to show the message for. | |
261 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
262 | Lisp_Object Vsuggest_key_bindings; | |
263 | ||
00392ce6 MB |
264 | /* How long to display an echo-area message when the minibuffer is active. |
265 | If the value is not a number, such messages don't time out. */ | |
266 | Lisp_Object Vminibuffer_message_timeout; | |
267 | ||
284f4730 JB |
268 | /* Character that causes a quit. Normally C-g. |
269 | ||
270 | If we are running on an ordinary terminal, this must be an ordinary | |
271 | ASCII char, since we want to make it our interrupt character. | |
272 | ||
273 | If we are not running on an ordinary terminal, it still needs to be | |
274 | an ordinary ASCII char. This character needs to be recognized in | |
275 | the input interrupt handler. At this point, the keystroke is | |
276 | represented as a struct input_event, while the desired quit | |
277 | character is specified as a lispy event. The mapping from struct | |
278 | input_events to lispy events cannot run in an interrupt handler, | |
279 | and the reverse mapping is difficult for anything but ASCII | |
280 | keystrokes. | |
281 | ||
282 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
283 | ASCII character. */ | |
284 | int quit_char; | |
285 | ||
286 | extern Lisp_Object current_global_map; | |
287 | extern int minibuf_level; | |
288 | ||
9dd3131c RS |
289 | /* If non-nil, this is a map that overrides all other local maps. */ |
290 | Lisp_Object Voverriding_local_map; | |
291 | ||
d0a49716 RS |
292 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
293 | Lisp_Object Voverriding_local_map_menu_flag; | |
294 | ||
7f07d5ca RS |
295 | /* Keymap that defines special misc events that should |
296 | be processed immediately at a low level. */ | |
297 | Lisp_Object Vspecial_event_map; | |
298 | ||
284f4730 JB |
299 | /* Current depth in recursive edits. */ |
300 | int command_loop_level; | |
301 | ||
302 | /* Total number of times command_loop has read a key sequence. */ | |
303 | int num_input_keys; | |
304 | ||
305 | /* Last input character read as a command. */ | |
306 | Lisp_Object last_command_char; | |
307 | ||
7d6de002 RS |
308 | /* Last input character read as a command, not counting menus |
309 | reached by the mouse. */ | |
310 | Lisp_Object last_nonmenu_event; | |
311 | ||
284f4730 JB |
312 | /* Last input character read for any purpose. */ |
313 | Lisp_Object last_input_char; | |
314 | ||
dbc4e1c1 | 315 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 316 | Lisp_Object Vunread_command_events; |
284f4730 | 317 | |
7d18f9ae RS |
318 | /* If not Qnil, a list of objects to be read as subsequent command input |
319 | including input method processing. */ | |
320 | Lisp_Object Vunread_input_method_events; | |
321 | ||
322 | /* If not Qnil, a list of objects to be read as subsequent command input | |
323 | but NOT including input method processing. */ | |
324 | Lisp_Object Vunread_post_input_method_events; | |
325 | ||
86e5706b RS |
326 | /* If not -1, an event to be read as subsequent command input. */ |
327 | int unread_command_char; | |
328 | ||
cd21b839 JB |
329 | /* If not Qnil, this is a switch-frame event which we decided to put |
330 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 331 | next command input, after any unread_command_events. |
8f805655 JB |
332 | |
333 | read_key_sequence uses this to delay switch-frame events until the | |
334 | end of the key sequence; Fread_char uses it to put off switch-frame | |
335 | events until a non-ASCII event is acceptable as input. */ | |
336 | Lisp_Object unread_switch_frame; | |
cd21b839 | 337 | |
9fa4395d RS |
338 | /* A mask of extra modifier bits to put into every keyboard char. */ |
339 | int extra_keyboard_modifiers; | |
340 | ||
284f4730 JB |
341 | /* Char to use as prefix when a meta character is typed in. |
342 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
343 | ||
344 | Lisp_Object meta_prefix_char; | |
345 | ||
346 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
347 | static int last_non_minibuf_size; | |
348 | ||
06ef7355 | 349 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
350 | static Lisp_Object Vauto_save_timeout; |
351 | ||
352 | /* Total number of times read_char has returned. */ | |
4abfba1f | 353 | int num_input_events; |
284f4730 | 354 | |
51172b6d | 355 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 356 | int num_nonmacro_input_events; |
51172b6d | 357 | |
284f4730 JB |
358 | /* Auto-save automatically when this many characters have been typed |
359 | since the last time. */ | |
360 | ||
361 | static int auto_save_interval; | |
362 | ||
c43b1734 | 363 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
364 | |
365 | int last_auto_save; | |
366 | ||
284f4730 | 367 | /* The command being executed by the command loop. |
6c7178b9 KH |
368 | Commands may set this, and the value set will be copied into |
369 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
370 | Lisp_Object Vthis_command; |
371 | ||
372 | /* This is like Vthis_command, except that commands never set it. */ | |
373 | Lisp_Object real_this_command; | |
284f4730 | 374 | |
b453f72e KH |
375 | /* The value of point when the last command was executed. */ |
376 | int last_point_position; | |
377 | ||
047688cb RS |
378 | /* The buffer that was current when the last command was started. */ |
379 | Lisp_Object last_point_position_buffer; | |
380 | ||
4c52b668 KH |
381 | /* The frame in which the last input event occurred, or Qmacro if the |
382 | last event came from a macro. We use this to determine when to | |
383 | generate switch-frame events. This may be cleared by functions | |
384 | like Fselect_frame, to make sure that a switch-frame event is | |
385 | generated by the next character. */ | |
386 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
387 | |
388 | /* A user-visible version of the above, intended to allow users to | |
389 | figure out where the last event came from, if the event doesn't | |
390 | carry that information itself (i.e. if it was a character). */ | |
391 | Lisp_Object Vlast_event_frame; | |
392 | ||
1113d9db JB |
393 | /* The timestamp of the last input event we received from the X server. |
394 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
395 | unsigned long last_event_timestamp; |
396 | ||
397 | Lisp_Object Qself_insert_command; | |
398 | Lisp_Object Qforward_char; | |
399 | Lisp_Object Qbackward_char; | |
e58aa385 | 400 | Lisp_Object Qundefined; |
d925fb39 | 401 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
402 | |
403 | /* read_key_sequence stores here the command definition of the | |
404 | key sequence that it reads. */ | |
405 | Lisp_Object read_key_sequence_cmd; | |
406 | ||
39aab679 DL |
407 | /* Echo unfinished commands after this many seconds of pause. */ |
408 | Lisp_Object Vecho_keystrokes; | |
409 | ||
284f4730 JB |
410 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
411 | Lisp_Object Vtop_level; | |
412 | ||
413 | /* User-supplied string to translate input characters through. */ | |
414 | Lisp_Object Vkeyboard_translate_table; | |
415 | ||
416 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
417 | extern Lisp_Object Vfunction_key_map; | |
418 | ||
e0301c07 RS |
419 | /* Another keymap that maps key sequences into key sequences. |
420 | This one takes precedence over ordinary definitions. */ | |
421 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 422 | |
7d18f9ae RS |
423 | /* If non-nil, this implements the current input method. */ |
424 | Lisp_Object Vinput_method_function; | |
425 | Lisp_Object Qinput_method_function; | |
426 | ||
d5eecefb RS |
427 | /* When we call Vinput_method_function, |
428 | this holds the echo area message that was just erased. */ | |
429 | Lisp_Object Vinput_method_previous_message; | |
430 | ||
86e5706b RS |
431 | /* Non-nil means deactivate the mark at end of this command. */ |
432 | Lisp_Object Vdeactivate_mark; | |
433 | ||
48e416d4 RS |
434 | /* Menu bar specified in Lucid Emacs fashion. */ |
435 | ||
436 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
437 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
438 | ||
cdb9d665 RS |
439 | Lisp_Object Qecho_area_clear_hook; |
440 | ||
86e5706b | 441 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
442 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
443 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 444 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
445 | /* Hook run after a command if there's no more input soon. */ |
446 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
447 | ||
448 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
449 | int post_command_idle_delay; | |
86e5706b | 450 | |
8a792f3a RS |
451 | /* List of deferred actions to be performed at a later time. |
452 | The precise format isn't relevant here; we just check whether it is nil. */ | |
453 | Lisp_Object Vdeferred_action_list; | |
454 | ||
455 | /* Function to call to handle deferred actions, when there are any. */ | |
456 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 457 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 458 | |
d5eecefb RS |
459 | Lisp_Object Qinput_method_exit_on_first_char; |
460 | Lisp_Object Qinput_method_use_echo_area; | |
461 | ||
284f4730 JB |
462 | /* File in which we write all commands we read. */ |
463 | FILE *dribble; | |
464 | ||
465 | /* Nonzero if input is available. */ | |
466 | int input_pending; | |
467 | ||
b04904fb RS |
468 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
469 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
470 | ||
284f4730 JB |
471 | int meta_key; |
472 | ||
3626fb1a GM |
473 | /* Non-zero means force key bindings update in parse_menu_item. */ |
474 | ||
475 | int update_menu_bindings; | |
476 | ||
284f4730 JB |
477 | extern char *pending_malloc_warning; |
478 | ||
beecf6a1 | 479 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 480 | |
beecf6a1 KH |
481 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
482 | ||
da8f7368 | 483 | /* Vector to GCPRO the Lisp objects referenced from kbd_buffer. |
beecf6a1 KH |
484 | |
485 | The interrupt-level event handlers will never enqueue an event on a | |
486 | frame which is not in Vframe_list, and once an event is dequeued, | |
487 | internal_last_event_frame or the event itself points to the frame. | |
488 | So that's all fine. | |
489 | ||
490 | But while the event is sitting in the queue, it's completely | |
491 | unprotected. Suppose the user types one command which will run for | |
492 | a while and then delete a frame, and then types another event at | |
493 | the frame that will be deleted, before the command gets around to | |
494 | it. Suppose there are no references to this frame elsewhere in | |
495 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
496 | have an event referring to a freed frame, which will crash Emacs | |
497 | when it is dequeued. | |
498 | ||
499 | Similar things happen when an event on a scroll bar is enqueued; the | |
500 | window may be deleted while the event is in the queue. | |
501 | ||
da8f7368 GM |
502 | So, we use this vector to protect the Lisp_Objects in the event |
503 | queue. That way, they'll be dequeued as dead frames or windows, | |
504 | but still valid Lisp objects. | |
beecf6a1 KH |
505 | |
506 | If kbd_buffer[i].kind != no_event, then | |
da8f7368 GM |
507 | |
508 | AREF (kbd_buffer_gcpro, 2 * i) == kbd_buffer[i].frame_or_window. | |
509 | AREF (kbd_buffer_gcpro, 2 * i + 1) == kbd_buffer[i].arg. */ | |
510 | ||
511 | static Lisp_Object kbd_buffer_gcpro; | |
beecf6a1 KH |
512 | |
513 | /* Pointer to next available character in kbd_buffer. | |
514 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
515 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
516 | next available char is in kbd_buffer[0]. */ | |
517 | static struct input_event *kbd_fetch_ptr; | |
518 | ||
519 | /* Pointer to next place to store character in kbd_buffer. This | |
520 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
521 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 522 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
523 | |
524 | /* The above pair of variables forms a "queue empty" flag. When we | |
525 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
526 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
527 | there is input available iff the two pointers are not equal. | |
528 | ||
529 | Why not just have a flag set and cleared by the enqueuing and | |
530 | dequeuing functions? Such a flag could be screwed up by interrupts | |
531 | at inopportune times. */ | |
532 | ||
f3253854 | 533 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
534 | mouse moves, and motion events will appear in the input stream. |
535 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 536 | Lisp_Object do_mouse_tracking; |
284f4730 | 537 | |
284f4730 JB |
538 | /* Symbols to head events. */ |
539 | Lisp_Object Qmouse_movement; | |
3c370943 | 540 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 541 | Lisp_Object Qswitch_frame; |
bbdc2092 | 542 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
543 | Lisp_Object Qiconify_frame; |
544 | Lisp_Object Qmake_frame_visible; | |
7ee32cda | 545 | Lisp_Object Qhelp_echo; |
cd21b839 | 546 | |
284f4730 JB |
547 | /* Symbols to denote kinds of events. */ |
548 | Lisp_Object Qfunction_key; | |
549 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
550 | #ifdef WINDOWSNT |
551 | Lisp_Object Qmouse_wheel; | |
1161d367 | 552 | Lisp_Object Qlanguage_change; |
07de30b9 | 553 | #endif |
a24dc617 | 554 | Lisp_Object Qdrag_n_drop; |
284f4730 | 555 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
556 | |
557 | /* Properties of event headers. */ | |
558 | Lisp_Object Qevent_kind; | |
88cb0656 | 559 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 560 | |
e8886a1d RS |
561 | /* menu item parts */ |
562 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 563 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
564 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
565 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
566 | extern Lisp_Object Vdefine_key_rebound_commands; |
567 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 568 | |
0a7f1fc0 JB |
569 | /* An event header symbol HEAD may have a property named |
570 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
571 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
572 | mask of modifiers applied to it. If present, this is used to help | |
573 | speed up parse_modifiers. */ | |
574 | Lisp_Object Qevent_symbol_element_mask; | |
575 | ||
576 | /* An unmodified event header BASE may have a property named | |
577 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
578 | modified versions of BASE. If present, this helps speed up | |
579 | apply_modifiers. */ | |
580 | Lisp_Object Qmodifier_cache; | |
581 | ||
5ec75a55 | 582 | /* Symbols to use for parts of windows. */ |
284f4730 | 583 | Lisp_Object Qmode_line; |
e5d77022 | 584 | Lisp_Object Qvertical_line; |
3c370943 | 585 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
586 | Lisp_Object Qmenu_bar; |
587 | ||
f4255cd1 JB |
588 | Lisp_Object recursive_edit_unwind (), command_loop (); |
589 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 590 | Lisp_Object Qextended_command_history; |
c04cbc3b | 591 | EMACS_TIME timer_check (); |
284f4730 | 592 | |
f4385381 RS |
593 | extern Lisp_Object Vhistory_length; |
594 | ||
2c834fb3 KH |
595 | extern char *x_get_keysym_name (); |
596 | ||
8eb4d8ef RS |
597 | static void record_menu_key (); |
598 | ||
f4eef8b4 RS |
599 | Lisp_Object Qpolling_period; |
600 | ||
d9d4c147 | 601 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
602 | Lisp_Object Vtimer_list; |
603 | ||
d9d4c147 KH |
604 | /* List of idle time timers. Appears in order of next scheduled event. */ |
605 | Lisp_Object Vtimer_idle_list; | |
606 | ||
87dd9b9b RS |
607 | /* Incremented whenever a timer is run. */ |
608 | int timers_run; | |
609 | ||
a9f16aa9 KH |
610 | extern Lisp_Object Vprint_level, Vprint_length; |
611 | ||
ffd56f97 JB |
612 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
613 | happens. */ | |
614 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
615 | |
616 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
617 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
618 | int interrupt_input; | |
619 | ||
620 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
621 | int interrupts_deferred; | |
622 | ||
87dd9b9b | 623 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
624 | int flow_control; |
625 | ||
284f4730 JB |
626 | /* Allow m- file to inhibit use of FIONREAD. */ |
627 | #ifdef BROKEN_FIONREAD | |
628 | #undef FIONREAD | |
629 | #endif | |
630 | ||
631 | /* We are unable to use interrupts if FIONREAD is not available, | |
632 | so flush SIGIO so we won't try. */ | |
633 | #ifndef FIONREAD | |
634 | #ifdef SIGIO | |
635 | #undef SIGIO | |
636 | #endif | |
637 | #endif | |
638 | ||
e98a93eb | 639 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 640 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 641 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
642 | #define POLL_FOR_INPUT |
643 | #endif | |
adf5cb9c KH |
644 | |
645 | /* After a command is executed, if point is moved into a region that | |
646 | has specific properties (e.g. composition, display), we adjust | |
647 | point to the boundary of the region. But, if a command sets this | |
648 | valiable to non-nil, we suppress this point adjustment. This | |
649 | variable is set to nil before reading a command. */ | |
da8f7368 | 650 | |
adf5cb9c KH |
651 | Lisp_Object Vdisable_point_adjustment; |
652 | ||
653 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 654 | |
adf5cb9c KH |
655 | Lisp_Object Vglobal_disable_point_adjustment; |
656 | ||
fdbb67fe GM |
657 | /* The time when Emacs started being idle. */ |
658 | ||
659 | static EMACS_TIME timer_idleness_start_time; | |
660 | ||
284f4730 JB |
661 | \f |
662 | /* Global variable declarations. */ | |
663 | ||
664 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
665 | void (*keyboard_init_hook) (); | |
666 | ||
0bbfdc25 GM |
667 | static int read_avail_input P_ ((int)); |
668 | static void get_input_pending P_ ((int *, int)); | |
669 | static int readable_events P_ ((int)); | |
670 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
671 | Lisp_Object, int *)); | |
8150596a | 672 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
673 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
674 | Lisp_Object *)); | |
675 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 676 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
677 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
678 | enum scroll_bar_part, | |
679 | Lisp_Object, Lisp_Object, | |
680 | unsigned long)); | |
514354e9 | 681 | #endif |
0bbfdc25 GM |
682 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
683 | Lisp_Object, char **, | |
684 | Lisp_Object *, unsigned)); | |
685 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
686 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 687 | static int parse_solitary_modifier (); |
0bbfdc25 | 688 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 689 | static void save_getcjmp (); |
0bbfdc25 | 690 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 691 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 692 | static void clear_event P_ ((struct input_event *)); |
284f4730 | 693 | |
8026024c KH |
694 | /* Nonzero means don't try to suspend even if the operating system seems |
695 | to support it. */ | |
696 | static int cannot_suspend; | |
697 | ||
284f4730 JB |
698 | #define min(a,b) ((a)<(b)?(a):(b)) |
699 | #define max(a,b) ((a)>(b)?(a):(b)) | |
700 | ||
701 | /* Install the string STR as the beginning of the string of echoing, | |
702 | so that it serves as a prompt for the next character. | |
703 | Also start echoing. */ | |
704 | ||
dfcf069d | 705 | void |
284f4730 | 706 | echo_prompt (str) |
a4ef85ee | 707 | Lisp_Object str; |
284f4730 | 708 | { |
f717c2ba | 709 | int nbytes = STRING_BYTES (XSTRING (str)); |
a4ef85ee | 710 | int multibyte_p = STRING_MULTIBYTE (str); |
7a80a6f6 | 711 | |
f717c2ba | 712 | if (nbytes > ECHOBUFSIZE - 4) |
a4ef85ee KH |
713 | { |
714 | if (multibyte_p) | |
715 | { | |
f717c2ba GM |
716 | /* Have to find the last character that fit's into the |
717 | echo buffer. */ | |
718 | unsigned char *p = XSTRING (str)->data; | |
a4ef85ee | 719 | unsigned char *pend = p + ECHOBUFSIZE - 4; |
f717c2ba | 720 | int char_len; |
a4ef85ee | 721 | |
f717c2ba | 722 | do |
a4ef85ee | 723 | { |
f717c2ba GM |
724 | PARSE_MULTIBYTE_SEQ (p, pend - p, char_len); |
725 | p += char_len; | |
a4ef85ee | 726 | } |
f717c2ba GM |
727 | while (p < pend); |
728 | ||
729 | nbytes = p - XSTRING (str)->data - char_len; | |
a4ef85ee KH |
730 | } |
731 | else | |
f717c2ba | 732 | nbytes = ECHOBUFSIZE - 4; |
a4ef85ee KH |
733 | } |
734 | ||
f717c2ba GM |
735 | nbytes = copy_text (XSTRING (str)->data, current_kboard->echobuf, nbytes, |
736 | STRING_MULTIBYTE (str), 1); | |
737 | current_kboard->echoptr = current_kboard->echobuf + nbytes; | |
c5fdd383 | 738 | *current_kboard->echoptr = '\0'; |
f717c2ba | 739 | current_kboard->echo_after_prompt = nbytes; |
7a80a6f6 | 740 | |
3dbd9ee4 | 741 | echo_now (); |
284f4730 JB |
742 | } |
743 | ||
df0f2ba1 | 744 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
745 | C can be a character, which is printed prettily ("M-C-x" and all that |
746 | jazz), or a symbol, whose name is printed. */ | |
747 | ||
dfcf069d | 748 | void |
284f4730 JB |
749 | echo_char (c) |
750 | Lisp_Object c; | |
751 | { | |
c5fdd383 | 752 | if (current_kboard->immediate_echo) |
284f4730 | 753 | { |
c5fdd383 | 754 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 755 | |
c5fdd383 | 756 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
757 | *ptr++ = ' '; |
758 | ||
759 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 760 | c = EVENT_HEAD (c); |
284f4730 | 761 | |
8c18cbfb | 762 | if (INTEGERP (c)) |
284f4730 | 763 | { |
a4ef85ee KH |
764 | int ch = XINT (c); |
765 | ||
2d0ffc9a KH |
766 | if (ptr - current_kboard->echobuf |
767 | > ECHOBUFSIZE - KEY_DESCRIPTION_SIZE) | |
284f4730 JB |
768 | return; |
769 | ||
5a7cb8f1 | 770 | ptr = push_key_description (ch, ptr, 1); |
284f4730 | 771 | } |
8c18cbfb | 772 | else if (SYMBOLP (c)) |
284f4730 JB |
773 | { |
774 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 775 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 776 | > ECHOBUFSIZE) |
284f4730 | 777 | return; |
a4ef85ee KH |
778 | ptr += copy_text (name->data, ptr, STRING_BYTES (name), |
779 | name->size_byte >= 0, 1); | |
284f4730 JB |
780 | } |
781 | ||
c5fdd383 | 782 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 783 | && help_char_p (c)) |
284f4730 JB |
784 | { |
785 | strcpy (ptr, " (Type ? for further options)"); | |
786 | ptr += strlen (ptr); | |
787 | } | |
788 | ||
789 | *ptr = 0; | |
c5fdd383 | 790 | current_kboard->echoptr = ptr; |
284f4730 | 791 | |
3dbd9ee4 | 792 | echo_now (); |
284f4730 JB |
793 | } |
794 | } | |
795 | ||
796 | /* Temporarily add a dash to the end of the echo string if it's not | |
797 | empty, so that it serves as a mini-prompt for the very next character. */ | |
798 | ||
dfcf069d | 799 | void |
284f4730 JB |
800 | echo_dash () |
801 | { | |
c5fdd383 KH |
802 | if (!current_kboard->immediate_echo |
803 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 804 | return; |
7a80a6f6 | 805 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
806 | if (current_kboard->echo_after_prompt |
807 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 808 | return; |
4bafa972 | 809 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 810 | if (current_kboard->echoptr == 0) |
4bafa972 | 811 | return; |
284f4730 JB |
812 | |
813 | /* Put a dash at the end of the buffer temporarily, | |
814 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
815 | current_kboard->echoptr[0] = '-'; |
816 | current_kboard->echoptr[1] = 0; | |
284f4730 | 817 | |
3dbd9ee4 | 818 | echo_now (); |
284f4730 JB |
819 | } |
820 | ||
821 | /* Display the current echo string, and begin echoing if not already | |
822 | doing so. */ | |
823 | ||
07a59269 | 824 | void |
3dbd9ee4 | 825 | echo_now () |
284f4730 | 826 | { |
c5fdd383 | 827 | if (!current_kboard->immediate_echo) |
284f4730 JB |
828 | { |
829 | int i; | |
c5fdd383 | 830 | current_kboard->immediate_echo = 1; |
284f4730 JB |
831 | |
832 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
833 | { |
834 | Lisp_Object c; | |
835 | c = XVECTOR (this_command_keys)->contents[i]; | |
836 | if (! (EVENT_HAS_PARAMETERS (c) | |
837 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
838 | echo_char (c); | |
839 | } | |
284f4730 JB |
840 | echo_dash (); |
841 | } | |
842 | ||
843 | echoing = 1; | |
301738ed | 844 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
a4ef85ee | 845 | 1); |
284f4730 JB |
846 | echoing = 0; |
847 | ||
59a84f8e GM |
848 | /* Record in what buffer we echoed, and from which kboard. */ |
849 | echo_message_buffer = echo_area_buffer[0]; | |
850 | echo_kboard = current_kboard; | |
851 | ||
284f4730 JB |
852 | if (waiting_for_input && !NILP (Vquit_flag)) |
853 | quit_throw_to_read_char (); | |
854 | } | |
855 | ||
856 | /* Turn off echoing, for the start of a new command. */ | |
857 | ||
dfcf069d | 858 | void |
284f4730 JB |
859 | cancel_echoing () |
860 | { | |
c5fdd383 KH |
861 | current_kboard->immediate_echo = 0; |
862 | current_kboard->echoptr = current_kboard->echobuf; | |
863 | current_kboard->echo_after_prompt = -1; | |
59a84f8e GM |
864 | ok_to_echo_at_next_pause = NULL; |
865 | echo_kboard = NULL; | |
866 | echo_message_buffer = Qnil; | |
284f4730 JB |
867 | } |
868 | ||
869 | /* Return the length of the current echo string. */ | |
870 | ||
871 | static int | |
872 | echo_length () | |
873 | { | |
c5fdd383 | 874 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
875 | } |
876 | ||
877 | /* Truncate the current echo message to its first LEN chars. | |
878 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 879 | switches frames while entering a key sequence. */ |
284f4730 JB |
880 | |
881 | static void | |
882 | echo_truncate (len) | |
883 | int len; | |
884 | { | |
c5fdd383 KH |
885 | current_kboard->echobuf[len] = '\0'; |
886 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 887 | truncate_echo_area (len); |
284f4730 JB |
888 | } |
889 | ||
890 | \f | |
891 | /* Functions for manipulating this_command_keys. */ | |
892 | static void | |
893 | add_command_key (key) | |
894 | Lisp_Object key; | |
895 | { | |
71918b75 RS |
896 | /* If reset-this-command-length was called recently, obey it now. |
897 | See the doc string of that function for an explanation of why. */ | |
898 | if (before_command_restore_flag) | |
899 | { | |
900 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
901 | if (this_command_key_count < this_single_command_key_start) |
902 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
903 | echo_truncate (before_command_echo_length_1); |
904 | before_command_restore_flag = 0; | |
905 | } | |
906 | ||
f4e05d97 GM |
907 | if (this_command_key_count >= ASIZE (this_command_keys)) |
908 | this_command_keys = larger_vector (this_command_keys, | |
909 | 2 * ASIZE (this_command_keys), | |
910 | Qnil); | |
6569cc8d | 911 | |
f4e05d97 GM |
912 | AREF (this_command_keys, this_command_key_count) = key; |
913 | ++this_command_key_count; | |
284f4730 | 914 | } |
f4e05d97 | 915 | |
284f4730 JB |
916 | \f |
917 | Lisp_Object | |
918 | recursive_edit_1 () | |
919 | { | |
920 | int count = specpdl_ptr - specpdl; | |
921 | Lisp_Object val; | |
922 | ||
923 | if (command_loop_level > 0) | |
924 | { | |
925 | specbind (Qstandard_output, Qt); | |
926 | specbind (Qstandard_input, Qt); | |
927 | } | |
928 | ||
84265027 | 929 | #ifdef HAVE_X_WINDOWS |
526a058f | 930 | /* The command loop has started an hourglass timer, so we have to |
84265027 GM |
931 | cancel it here, otherwise it will fire because the recursive edit |
932 | can take some time. */ | |
526a058f GM |
933 | if (display_hourglass_p) |
934 | cancel_hourglass (); | |
84265027 GM |
935 | #endif |
936 | ||
980a2d69 GM |
937 | /* This function may have been called from a debugger called from |
938 | within redisplay, for instance by Edebugging a function called | |
939 | from fontification-functions. We want to allow redisplay in | |
940 | the debugging session. | |
941 | ||
942 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
943 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
944 | recursive edit, the original redisplay leading to the recursive | |
945 | edit will be unwound. The outcome should therefore be safe. */ | |
946 | specbind (Qinhibit_redisplay, Qnil); | |
947 | redisplaying_p = 0; | |
948 | ||
284f4730 JB |
949 | val = command_loop (); |
950 | if (EQ (val, Qt)) | |
951 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
952 | /* Handle throw from read_minibuf when using minibuffer |
953 | while it's active but we're in another window. */ | |
954 | if (STRINGP (val)) | |
955 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 956 | |
cb5df6ae | 957 | return unbind_to (count, Qnil); |
284f4730 JB |
958 | } |
959 | ||
960 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 961 | |
07a59269 | 962 | void |
284f4730 JB |
963 | record_auto_save () |
964 | { | |
c43b1734 | 965 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 966 | } |
5846638c RS |
967 | |
968 | /* Make an auto save happen as soon as possible at command level. */ | |
969 | ||
dfcf069d | 970 | void |
5846638c RS |
971 | force_auto_save_soon () |
972 | { | |
973 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
974 | |
975 | record_asynch_buffer_change (); | |
5846638c | 976 | } |
284f4730 | 977 | \f |
284f4730 JB |
978 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
979 | "Invoke the editor command loop recursively.\n\ | |
980 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
981 | that tells this function to return.\n\ | |
982 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
983 | This function is called by the editor initialization to begin editing.") | |
984 | () | |
985 | { | |
986 | int count = specpdl_ptr - specpdl; | |
284f4730 JB |
987 | |
988 | command_loop_level++; | |
989 | update_mode_lines = 1; | |
990 | ||
991 | record_unwind_protect (recursive_edit_unwind, | |
992 | (command_loop_level | |
993 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
994 | ? Fcurrent_buffer () | |
995 | : Qnil); | |
996 | recursive_edit_1 (); | |
997 | return unbind_to (count, Qnil); | |
998 | } | |
999 | ||
1000 | Lisp_Object | |
1001 | recursive_edit_unwind (buffer) | |
1002 | Lisp_Object buffer; | |
1003 | { | |
1004 | if (!NILP (buffer)) | |
1005 | Fset_buffer (buffer); | |
1006 | ||
1007 | command_loop_level--; | |
1008 | update_mode_lines = 1; | |
1009 | return Qnil; | |
1010 | } | |
1011 | \f | |
604ccd1d | 1012 | static void |
1e8bd3da | 1013 | any_kboard_state () |
604ccd1d | 1014 | { |
1e8bd3da RS |
1015 | #ifdef MULTI_KBOARD |
1016 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1017 | it will right away be read by read_key_sequence, | |
1018 | and then if we do switch KBOARDS, it will go into the side | |
1019 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1020 | if (CONSP (Vunread_command_events)) |
4524b161 | 1021 | { |
c5fdd383 KH |
1022 | current_kboard->kbd_queue |
1023 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1024 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1025 | } |
604ccd1d | 1026 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1027 | #endif |
1028 | single_kboard = 0; | |
1029 | #endif | |
604ccd1d | 1030 | } |
1e8bd3da RS |
1031 | |
1032 | /* Switch to the single-kboard state, making current_kboard | |
1033 | the only KBOARD from which further input is accepted. */ | |
1034 | ||
1035 | void | |
1036 | single_kboard_state () | |
1037 | { | |
1038 | #ifdef MULTI_KBOARD | |
1039 | single_kboard = 1; | |
604ccd1d | 1040 | #endif |
1e8bd3da RS |
1041 | } |
1042 | ||
1043 | /* Maintain a stack of kboards, so other parts of Emacs | |
1044 | can switch temporarily to the kboard of a given frame | |
1045 | and then revert to the previous status. */ | |
1046 | ||
1047 | struct kboard_stack | |
1048 | { | |
1049 | KBOARD *kboard; | |
1050 | struct kboard_stack *next; | |
1051 | }; | |
1052 | ||
1053 | static struct kboard_stack *kboard_stack; | |
1054 | ||
1055 | void | |
1056 | push_frame_kboard (f) | |
1057 | FRAME_PTR f; | |
1058 | { | |
ab48365b | 1059 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1060 | struct kboard_stack *p |
1061 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1062 | ||
1063 | p->next = kboard_stack; | |
1064 | p->kboard = current_kboard; | |
1065 | kboard_stack = p; | |
1066 | ||
1067 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1068 | #endif |
1e8bd3da RS |
1069 | } |
1070 | ||
1071 | void | |
1072 | pop_frame_kboard () | |
1073 | { | |
ab48365b | 1074 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1075 | struct kboard_stack *p = kboard_stack; |
1076 | current_kboard = p->kboard; | |
1077 | kboard_stack = p->next; | |
1078 | xfree (p); | |
ab48365b | 1079 | #endif |
1e8bd3da RS |
1080 | } |
1081 | \f | |
1082 | /* Handle errors that are not handled at inner levels | |
1083 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1084 | |
284f4730 JB |
1085 | Lisp_Object |
1086 | cmd_error (data) | |
1087 | Lisp_Object data; | |
a1341f75 | 1088 | { |
a9f16aa9 | 1089 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1090 | char macroerror[50]; |
1091 | ||
1092 | if (!NILP (executing_macro)) | |
1093 | { | |
1094 | if (executing_macro_iterations == 1) | |
1095 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1096 | else | |
1097 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1098 | executing_macro_iterations); | |
1099 | } | |
1100 | else | |
1101 | *macroerror = 0; | |
a9f16aa9 | 1102 | |
a1341f75 RS |
1103 | Vstandard_output = Qt; |
1104 | Vstandard_input = Qt; | |
1105 | Vexecuting_macro = Qnil; | |
9f58e89e | 1106 | executing_macro = Qnil; |
d8bcf58e | 1107 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1108 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1109 | cancel_echoing (); |
a9f16aa9 KH |
1110 | |
1111 | /* Avoid unquittable loop if data contains a circular list. */ | |
1112 | old_level = Vprint_level; | |
1113 | old_length = Vprint_length; | |
0c04a67e RS |
1114 | XSETFASTINT (Vprint_level, 10); |
1115 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1116 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1117 | Vprint_level = old_level; |
1118 | Vprint_length = old_length; | |
a1341f75 RS |
1119 | |
1120 | Vquit_flag = Qnil; | |
1121 | ||
1122 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1123 | #ifdef MULTI_KBOARD |
1e8bd3da | 1124 | any_kboard_state (); |
ff4b06d3 | 1125 | #endif |
a1341f75 RS |
1126 | |
1127 | return make_number (0); | |
1128 | } | |
1129 | ||
301738ed RS |
1130 | /* Take actions on handling an error. DATA is the data that describes |
1131 | the error. | |
1132 | ||
1133 | CONTEXT is a C-string containing ASCII characters only which | |
1134 | describes the context in which the error happened. If we need to | |
1135 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1136 | string. */ | |
1137 | ||
07a59269 | 1138 | void |
a1341f75 RS |
1139 | cmd_error_internal (data, context) |
1140 | Lisp_Object data; | |
1141 | char *context; | |
284f4730 | 1142 | { |
284f4730 | 1143 | Lisp_Object stream; |
7ee32cda | 1144 | int kill_emacs_p = 0; |
788f89eb | 1145 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1146 | |
1147 | Vquit_flag = Qnil; | |
1148 | Vinhibit_quit = Qt; | |
985f9f66 | 1149 | clear_message (1, 0); |
284f4730 | 1150 | |
ff11dfa1 | 1151 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1152 | yet, or we're not interactive, it's best to dump this message out |
1153 | to stderr and exit. */ | |
788f89eb | 1154 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1155 | /* This is the case of the frame dumped with Emacs, when we're |
1156 | running under a window system. */ | |
1157 | || (!NILP (Vwindow_system) | |
1158 | && !inhibit_window_system | |
788f89eb | 1159 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1160 | || noninteractive) |
7ee32cda GM |
1161 | { |
1162 | stream = Qexternal_debugging_output; | |
1163 | kill_emacs_p = 1; | |
1164 | } | |
284f4730 JB |
1165 | else |
1166 | { | |
1167 | Fdiscard_input (); | |
1168 | bitch_at_user (); | |
1169 | stream = Qt; | |
1170 | } | |
1171 | ||
a1341f75 RS |
1172 | if (context != 0) |
1173 | write_string_1 (context, -1, stream); | |
1174 | ||
22a51344 | 1175 | print_error_message (data, stream); |
284f4730 | 1176 | |
ff11dfa1 | 1177 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1178 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1179 | if (kill_emacs_p) |
284f4730 JB |
1180 | { |
1181 | Fterpri (stream); | |
1182 | Fkill_emacs (make_number (-1)); | |
1183 | } | |
284f4730 JB |
1184 | } |
1185 | \f | |
1186 | Lisp_Object command_loop_1 (); | |
1187 | Lisp_Object command_loop_2 (); | |
1188 | Lisp_Object top_level_1 (); | |
1189 | ||
1190 | /* Entry to editor-command-loop. | |
1191 | This level has the catches for exiting/returning to editor command loop. | |
1192 | It returns nil to exit recursive edit, t to abort it. */ | |
1193 | ||
1194 | Lisp_Object | |
1195 | command_loop () | |
1196 | { | |
1197 | if (command_loop_level > 0 || minibuf_level > 0) | |
1198 | { | |
07ba902e RS |
1199 | Lisp_Object val; |
1200 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1201 | executing_macro = Qnil; |
1202 | return val; | |
284f4730 JB |
1203 | } |
1204 | else | |
1205 | while (1) | |
1206 | { | |
1207 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1208 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1209 | executing_macro = Qnil; |
df0f2ba1 | 1210 | |
284f4730 JB |
1211 | /* End of file in -batch run causes exit here. */ |
1212 | if (noninteractive) | |
1213 | Fkill_emacs (Qt); | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | /* Here we catch errors in execution of commands within the | |
1218 | editing loop, and reenter the editing loop. | |
1219 | When there is an error, cmd_error runs and returns a non-nil | |
1220 | value to us. A value of nil means that cmd_loop_1 itself | |
1221 | returned due to end of file (or end of kbd macro). */ | |
1222 | ||
1223 | Lisp_Object | |
1224 | command_loop_2 () | |
1225 | { | |
1226 | register Lisp_Object val; | |
1227 | ||
1228 | do | |
1229 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1230 | while (!NILP (val)); | |
1231 | ||
1232 | return Qnil; | |
1233 | } | |
1234 | ||
1235 | Lisp_Object | |
1236 | top_level_2 () | |
1237 | { | |
1238 | return Feval (Vtop_level); | |
1239 | } | |
1240 | ||
1241 | Lisp_Object | |
1242 | top_level_1 () | |
1243 | { | |
1244 | /* On entry to the outer level, run the startup file */ | |
1245 | if (!NILP (Vtop_level)) | |
1246 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1247 | else if (!NILP (Vpurify_flag)) | |
1248 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1249 | else | |
1250 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1251 | return Qnil; | |
1252 | } | |
1253 | ||
1254 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1255 | "Exit all recursive editing levels.") | |
1256 | () | |
1257 | { | |
2c9cf2c8 | 1258 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1259 | if (display_hourglass_p) |
1260 | cancel_hourglass (); | |
2c9cf2c8 | 1261 | #endif |
8c907a56 | 1262 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1263 | } |
1264 | ||
1265 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1266 | "Exit from the innermost recursive edit or minibuffer.") | |
1267 | () | |
1268 | { | |
1269 | if (command_loop_level > 0 || minibuf_level > 0) | |
1270 | Fthrow (Qexit, Qnil); | |
1271 | ||
1272 | error ("No recursive edit is in progress"); | |
8c907a56 | 1273 | return Qnil; |
284f4730 JB |
1274 | } |
1275 | ||
1276 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1277 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1278 | () | |
1279 | { | |
1280 | if (command_loop_level > 0 || minibuf_level > 0) | |
1281 | Fthrow (Qexit, Qt); | |
1282 | ||
1283 | error ("No recursive edit is in progress"); | |
8c907a56 | 1284 | return Qnil; |
284f4730 JB |
1285 | } |
1286 | \f | |
1287 | /* This is the actual command reading loop, | |
1288 | sans error-handling encapsulation. */ | |
1289 | ||
a7b772c1 GM |
1290 | EXFUN (Fcommand_execute, 4); |
1291 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, | |
1292 | int, int, int)); | |
1293 | void safe_run_hooks P_ ((Lisp_Object)); | |
1294 | static void adjust_point_for_property P_ ((int)); | |
284f4730 JB |
1295 | |
1296 | Lisp_Object | |
1297 | command_loop_1 () | |
1298 | { | |
03cee6ae GM |
1299 | Lisp_Object cmd; |
1300 | int lose; | |
284f4730 JB |
1301 | int nonundocount; |
1302 | Lisp_Object keybuf[30]; | |
1303 | int i; | |
284f4730 | 1304 | int no_direct; |
86e5706b | 1305 | int prev_modiff; |
8c907a56 | 1306 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1307 | #ifdef MULTI_KBOARD |
1e8bd3da | 1308 | int was_locked = single_kboard; |
bded54dd | 1309 | #endif |
284f4730 | 1310 | |
d9b641bb | 1311 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1312 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1313 | Vdeactivate_mark = Qnil; |
284f4730 | 1314 | waiting_for_input = 0; |
df0f2ba1 | 1315 | cancel_echoing (); |
284f4730 | 1316 | |
284f4730 | 1317 | nonundocount = 0; |
284f4730 | 1318 | this_command_key_count = 0; |
6321824f | 1319 | this_single_command_key_start = 0; |
284f4730 | 1320 | |
a612e298 RS |
1321 | /* Make sure this hook runs after commands that get errors and |
1322 | throw to top level. */ | |
a98ea3f9 RS |
1323 | /* Note that the value cell will never directly contain nil |
1324 | if the symbol is a local variable. */ | |
e98a93eb | 1325 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1326 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1327 | |
8f12e41d GM |
1328 | /* If displaying a message, resize the echo area window to fit |
1329 | that message's size exactly. */ | |
1330 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1331 | resize_echo_area_exactly (); |
8f12e41d | 1332 | |
8a792f3a RS |
1333 | if (!NILP (Vdeferred_action_list)) |
1334 | call0 (Vdeferred_action_function); | |
1335 | ||
e98a93eb | 1336 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1337 | { |
1338 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1339 | && NILP (Vunread_input_method_events) |
1340 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1341 | && NILP (Vexecuting_macro) |
41365083 | 1342 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1343 | safe_run_hooks (Qpost_command_idle_hook); |
1344 | } | |
1345 | ||
51d5a2c9 | 1346 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1347 | current_kboard->Vlast_command = Vthis_command; |
1348 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1349 | |
284f4730 JB |
1350 | while (1) |
1351 | { | |
788f89eb | 1352 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1353 | Fkill_emacs (Qnil); |
1354 | ||
284f4730 JB |
1355 | /* Make sure the current window's buffer is selected. */ |
1356 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1357 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1358 | ||
1359 | /* Display any malloc warning that just came out. Use while because | |
1360 | displaying one warning can cause another. */ | |
1361 | ||
1362 | while (pending_malloc_warning) | |
1363 | display_malloc_warning (); | |
1364 | ||
1365 | no_direct = 0; | |
1366 | ||
86e5706b RS |
1367 | Vdeactivate_mark = Qnil; |
1368 | ||
284f4730 | 1369 | /* If minibuffer on and echo area in use, |
00392ce6 | 1370 | wait a short time and redraw minibuffer. */ |
284f4730 | 1371 | |
7ee32cda | 1372 | if (minibuf_level |
985f9f66 | 1373 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1374 | && EQ (minibuf_window, echo_area_window) |
1375 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1376 | { |
f1bed6d8 RS |
1377 | /* Bind inhibit-quit to t so that C-g gets read in |
1378 | rather than quitting back to the minibuffer. */ | |
1379 | int count = specpdl_ptr - specpdl; | |
1380 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1381 | |
00392ce6 | 1382 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1383 | /* Clear the echo area. */ |
301738ed | 1384 | message2 (0, 0, 0); |
cdb9d665 | 1385 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1386 | |
db08707d RS |
1387 | unbind_to (count, Qnil); |
1388 | ||
e6aa7813 | 1389 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1390 | if (!NILP (Vquit_flag)) |
1391 | { | |
1392 | Vquit_flag = Qnil; | |
24597608 | 1393 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1394 | } |
1395 | } | |
1396 | ||
1397 | #ifdef C_ALLOCA | |
ff4b06d3 | 1398 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1399 | /* Since we can free the most stuff here. */ |
1400 | #endif /* C_ALLOCA */ | |
1401 | ||
8f805655 | 1402 | #if 0 |
8f805655 JB |
1403 | /* Select the frame that the last event came from. Usually, |
1404 | switch-frame events will take care of this, but if some lisp | |
1405 | code swallows a switch-frame event, we'll fix things up here. | |
1406 | Is this a good idea? */ | |
8c18cbfb | 1407 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1408 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1409 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1410 | #endif |
48e416d4 RS |
1411 | /* If it has changed current-menubar from previous value, |
1412 | really recompute the menubar from the value. */ | |
a646e520 RS |
1413 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1414 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1415 | call0 (Qrecompute_lucid_menubar); |
1416 | ||
71918b75 RS |
1417 | before_command_key_count = this_command_key_count; |
1418 | before_command_echo_length = echo_length (); | |
1419 | ||
d5eecefb RS |
1420 | Vthis_command = Qnil; |
1421 | real_this_command = Qnil; | |
d7437ef6 | 1422 | |
8f805655 | 1423 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1424 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1425 | Qnil, 0, 1, 1); |
8f805655 | 1426 | |
6fac1409 | 1427 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1428 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1429 | Fkill_emacs (Qnil); |
6fac1409 RS |
1430 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1431 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1432 | ||
8f805655 JB |
1433 | ++num_input_keys; |
1434 | ||
284f4730 JB |
1435 | /* Now we have read a key sequence of length I, |
1436 | or else I is 0 and we found end of file. */ | |
1437 | ||
1438 | if (i == 0) /* End of file -- happens only in */ | |
1439 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1440 | /* -1 means read_key_sequence got a menu that was rejected. |
1441 | Just loop around and read another command. */ | |
1442 | if (i == -1) | |
1443 | { | |
1444 | cancel_echoing (); | |
1445 | this_command_key_count = 0; | |
6321824f | 1446 | this_single_command_key_start = 0; |
ff4b06d3 | 1447 | goto finalize; |
dcc408a0 | 1448 | } |
284f4730 | 1449 | |
284f4730 JB |
1450 | last_command_char = keybuf[i - 1]; |
1451 | ||
75c0b143 RS |
1452 | /* If the previous command tried to force a specific window-start, |
1453 | forget about that, in case this command moves point far away | |
c422836d KH |
1454 | from that position. But also throw away beg_unchanged and |
1455 | end_unchanged information in that case, so that redisplay will | |
1456 | update the whole window properly. */ | |
1457 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1458 | { | |
9351ebd0 | 1459 | struct buffer *b; |
c422836d | 1460 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1461 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1462 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1463 | } |
75c0b143 | 1464 | |
284f4730 JB |
1465 | cmd = read_key_sequence_cmd; |
1466 | if (!NILP (Vexecuting_macro)) | |
1467 | { | |
1468 | if (!NILP (Vquit_flag)) | |
1469 | { | |
1470 | Vexecuting_macro = Qt; | |
1471 | QUIT; /* Make some noise. */ | |
1472 | /* Will return since macro now empty. */ | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1477 | cases identified below. */ |
86e5706b RS |
1478 | prev_buffer = current_buffer; |
1479 | prev_modiff = MODIFF; | |
8746da95 | 1480 | last_point_position = PT; |
18cd2eeb | 1481 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1482 | |
adf5cb9c KH |
1483 | /* By default, we adjust point to a boundary of a region that |
1484 | has such a property that should be treated intangible | |
1485 | (e.g. composition, display). But, some commands will set | |
1486 | this variable differently. */ | |
1487 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1488 | |
be2488ca GM |
1489 | /* Process filters and timers may have messed with deactivate-mark. |
1490 | reset it before we execute the command. */ | |
1491 | Vdeactivate_mark = Qnil; | |
1492 | ||
284f4730 JB |
1493 | /* Execute the command. */ |
1494 | ||
d5eecefb RS |
1495 | Vthis_command = cmd; |
1496 | real_this_command = cmd; | |
a98ea3f9 RS |
1497 | /* Note that the value cell will never directly contain nil |
1498 | if the symbol is a local variable. */ | |
e98a93eb | 1499 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1500 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1501 | |
d5eecefb | 1502 | if (NILP (Vthis_command)) |
284f4730 JB |
1503 | { |
1504 | /* nil means key is undefined. */ | |
1505 | bitch_at_user (); | |
c5fdd383 | 1506 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1507 | update_mode_lines = 1; |
d8bcf58e | 1508 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1509 | } |
1510 | else | |
1511 | { | |
d8bcf58e | 1512 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1513 | { |
75045dcb RS |
1514 | /* In case we jump to directly_done. */ |
1515 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1516 | ||
284f4730 JB |
1517 | /* Recognize some common commands in common situations and |
1518 | do them directly. */ | |
d5eecefb | 1519 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1520 | { |
51ad8a68 | 1521 | struct Lisp_Char_Table *dp |
284f4730 | 1522 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1523 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1524 | SET_PT (PT + 1); |
0f7a8fee | 1525 | if ((dp |
82ba47d7 | 1526 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1527 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1528 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1529 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1530 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1531 | /* To extract the case of continuation on |
1532 | wide-column characters. */ | |
8458ede6 | 1533 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1534 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1535 | >= MODIFF) | |
598ba4c7 RS |
1536 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1537 | >= OVERLAY_MODIFF) | |
284f4730 | 1538 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1539 | == PT - 1) |
284f4730 JB |
1540 | && !windows_or_buffers_changed |
1541 | && EQ (current_buffer->selective_display, Qnil) | |
1542 | && !detect_input_pending () | |
962ae636 | 1543 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1544 | && NILP (Vexecuting_macro)) |
e35b6123 | 1545 | direct_output_forward_char (1); |
284f4730 JB |
1546 | goto directly_done; |
1547 | } | |
d5eecefb | 1548 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1549 | { |
51ad8a68 | 1550 | struct Lisp_Char_Table *dp |
284f4730 | 1551 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1552 | SET_PT (PT - 1); |
aaf35234 | 1553 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1554 | if ((dp |
ca873d73 | 1555 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1556 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1557 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1558 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1559 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1560 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1561 | >= MODIFF) | |
598ba4c7 RS |
1562 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1563 | >= OVERLAY_MODIFF) | |
284f4730 | 1564 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1565 | == PT + 1) |
284f4730 JB |
1566 | && !windows_or_buffers_changed |
1567 | && EQ (current_buffer->selective_display, Qnil) | |
1568 | && !detect_input_pending () | |
962ae636 | 1569 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1570 | && NILP (Vexecuting_macro)) |
e35b6123 | 1571 | direct_output_forward_char (-1); |
284f4730 JB |
1572 | goto directly_done; |
1573 | } | |
d5eecefb | 1574 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1575 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1576 | && INTEGERP (last_command_char)) |
284f4730 | 1577 | { |
89599794 | 1578 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1579 | int value; |
fc9cce4e RS |
1580 | if (NILP (Vexecuting_macro) |
1581 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1582 | { |
1583 | if (!nonundocount || nonundocount >= 20) | |
1584 | { | |
1585 | Fundo_boundary (); | |
1586 | nonundocount = 0; | |
1587 | } | |
1588 | nonundocount++; | |
1589 | } | |
7ee32cda | 1590 | |
fc9cce4e RS |
1591 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1592 | < MODIFF) | |
598ba4c7 RS |
1593 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1594 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1595 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1596 | != PT) | |
4c61f38e | 1597 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1598 | || windows_or_buffers_changed |
1599 | || !EQ (current_buffer->selective_display, Qnil) | |
1600 | || detect_input_pending () | |
962ae636 | 1601 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1602 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1603 | |
fc9cce4e | 1604 | value = internal_self_insert (c, 0); |
7ee32cda | 1605 | |
fc9cce4e RS |
1606 | if (value == 2) |
1607 | nonundocount = 0; | |
1608 | ||
7ee32cda GM |
1609 | /* VALUE == 1 when AFTER-CHANGE functions are |
1610 | installed which is the case most of the time | |
1611 | because FONT-LOCK installs one. */ | |
1612 | if (!lose && !value) | |
e35b6123 | 1613 | direct_output_for_insert (c); |
284f4730 JB |
1614 | goto directly_done; |
1615 | } | |
1616 | } | |
1617 | ||
1618 | /* Here for a command that isn't executed directly */ | |
1619 | ||
7ee32cda | 1620 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1621 | if (display_hourglass_p) |
1622 | start_hourglass (); | |
7ee32cda GM |
1623 | #endif |
1624 | ||
284f4730 | 1625 | nonundocount = 0; |
d8bcf58e | 1626 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1627 | Fundo_boundary (); |
d5eecefb | 1628 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1629 | |
1630 | #ifdef HAVE_X_WINDOWS | |
526a058f GM |
1631 | if (display_hourglass_p) |
1632 | cancel_hourglass (); | |
d0c48478 | 1633 | #endif |
284f4730 | 1634 | } |
a764a753 | 1635 | directly_done: ; |
75045dcb | 1636 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1637 | |
84ee6048 RS |
1638 | /* Note that the value cell will never directly contain nil |
1639 | if the symbol is a local variable. */ | |
1640 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1641 | safe_run_hooks (Qpost_command_hook); | |
1642 | ||
8f12e41d GM |
1643 | /* If displaying a message, resize the echo area window to fit |
1644 | that message's size exactly. */ | |
1645 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1646 | resize_echo_area_exactly (); |
8f12e41d | 1647 | |
84ee6048 RS |
1648 | if (!NILP (Vdeferred_action_list)) |
1649 | safe_run_hooks (Qdeferred_action_function); | |
1650 | ||
1651 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1652 | { | |
1653 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1654 | && NILP (Vunread_input_method_events) |
1655 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1656 | && NILP (Vexecuting_macro) |
1657 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1658 | safe_run_hooks (Qpost_command_idle_hook); | |
1659 | } | |
1660 | ||
284f4730 | 1661 | /* If there is a prefix argument, |
6c7178b9 KH |
1662 | 1) We don't want Vlast_command to be ``universal-argument'' |
1663 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1664 | 2) we want to leave echoing on so that the prefix will be |
1665 | echoed as part of this key sequence, so don't call | |
1666 | cancel_echoing, and | |
1667 | 3) we want to leave this_command_key_count non-zero, so that | |
1668 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1669 | not echo it a second time. |
1670 | ||
1671 | If the command didn't actually create a prefix arg, | |
1672 | but is merely a frame event that is transparent to prefix args, | |
1673 | then the above doesn't apply. */ | |
1674 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1675 | { |
d5eecefb RS |
1676 | current_kboard->Vlast_command = Vthis_command; |
1677 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1678 | cancel_echoing (); |
1679 | this_command_key_count = 0; | |
6321824f | 1680 | this_single_command_key_start = 0; |
284f4730 | 1681 | } |
86e5706b | 1682 | |
88ce066e | 1683 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1684 | { |
1685 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1686 | { | |
1687 | current_buffer->mark_active = Qnil; | |
1688 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1689 | } | |
1690 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1691 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1692 | } | |
ff4b06d3 KH |
1693 | |
1694 | finalize: | |
adf5cb9c KH |
1695 | |
1696 | if (current_buffer == prev_buffer | |
1697 | && last_point_position != PT | |
1698 | && NILP (Vdisable_point_adjustment) | |
1699 | && NILP (Vglobal_disable_point_adjustment)) | |
1700 | adjust_point_for_property (last_point_position); | |
1701 | ||
ff4b06d3 KH |
1702 | /* Install chars successfully executed in kbd macro. */ |
1703 | ||
d8bcf58e KH |
1704 | if (!NILP (current_kboard->defining_kbd_macro) |
1705 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1706 | finalize_kbd_macro_chars (); |
1707 | ||
c5fdd383 | 1708 | #ifdef MULTI_KBOARD |
604ccd1d | 1709 | if (!was_locked) |
1e8bd3da | 1710 | any_kboard_state (); |
ff4b06d3 | 1711 | #endif |
284f4730 JB |
1712 | } |
1713 | } | |
1c9784c9 | 1714 | |
adf5cb9c KH |
1715 | extern Lisp_Object Qcomposition, Qdisplay; |
1716 | ||
1717 | /* Adjust point to a boundary of a region that has such a property | |
1718 | that should be treated intangible. For the moment, we check | |
1719 | `composition' and `display' property. LAST_PT is the last position | |
1720 | of point. */ | |
1721 | ||
1722 | static void | |
1723 | adjust_point_for_property (last_pt) | |
1724 | int last_pt; | |
1725 | { | |
1726 | int start, end; | |
1727 | Lisp_Object val; | |
1728 | int check_composition = 1, check_display = 1; | |
1729 | ||
1730 | while (check_composition || check_display) | |
1731 | { | |
1732 | if (check_composition | |
1733 | && PT > BEGV && PT < ZV | |
1734 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1735 | && COMPOSITION_VALID_P (start, end, val) | |
1736 | && start < PT && end > PT | |
1737 | && (last_pt <= start || last_pt >= end)) | |
1738 | { | |
1739 | if (PT < last_pt) | |
1740 | SET_PT (start); | |
1741 | else | |
1742 | SET_PT (end); | |
1743 | check_display = 1; | |
1744 | } | |
1745 | check_composition = 0; | |
1746 | if (check_display | |
1747 | && PT > BEGV && PT < ZV | |
1748 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
3e9ac4b7 | 1749 | && display_prop_intangible_p (val) |
adf5cb9c KH |
1750 | && start < PT && end > PT |
1751 | && (last_pt <= start || last_pt >= end)) | |
1752 | { | |
1753 | if (PT < last_pt) | |
1754 | SET_PT (start); | |
1755 | else | |
1756 | SET_PT (end); | |
1757 | check_composition = 1; | |
1758 | } | |
1759 | check_display = 0; | |
1760 | } | |
1761 | } | |
1762 | ||
0bc3db2b RS |
1763 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1764 | ||
1765 | static Lisp_Object | |
1766 | safe_run_hooks_1 (hook) | |
1767 | Lisp_Object hook; | |
1768 | { | |
1769 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1770 | } | |
1771 | ||
1772 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1773 | ||
1774 | static Lisp_Object | |
1775 | safe_run_hooks_error (data) | |
1776 | Lisp_Object data; | |
1777 | { | |
30690496 | 1778 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1779 | } |
1780 | ||
1c9784c9 KH |
1781 | /* If we get an error while running the hook, cause the hook variable |
1782 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1783 | to mysteriously evaporate. */ | |
0bc3db2b | 1784 | |
68f297c5 | 1785 | void |
1c9784c9 | 1786 | safe_run_hooks (hook) |
a98ea3f9 | 1787 | Lisp_Object hook; |
1c9784c9 KH |
1788 | { |
1789 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1790 | specbind (Qinhibit_quit, hook); |
1791 | ||
e702932d | 1792 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1793 | |
1794 | unbind_to (count, Qnil); | |
1795 | } | |
8a9f5d3c | 1796 | |
284f4730 | 1797 | \f |
8a9f5d3c GM |
1798 | /* Number of seconds between polling for input. This is a Lisp |
1799 | variable that can be bound. */ | |
1800 | ||
284f4730 JB |
1801 | int polling_period; |
1802 | ||
eb8c3be9 | 1803 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1804 | |
284f4730 JB |
1805 | int poll_suppress_count; |
1806 | ||
8a9f5d3c GM |
1807 | /* Asynchronous timer for polling. */ |
1808 | ||
1809 | struct atimer *poll_timer; | |
1810 | ||
284f4730 | 1811 | |
36922b18 RS |
1812 | #ifdef POLL_FOR_INPUT |
1813 | ||
8a9f5d3c GM |
1814 | /* Poll for input, so what we catch a C-g if it comes in. This |
1815 | function is called from x_make_frame_visible, see comment | |
1816 | there. */ | |
284f4730 | 1817 | |
8a9f5d3c GM |
1818 | void |
1819 | poll_for_input_1 () | |
284f4730 | 1820 | { |
9ac0d9e0 JB |
1821 | if (interrupt_input_blocked == 0 |
1822 | && !waiting_for_input) | |
1823 | read_avail_input (0); | |
284f4730 JB |
1824 | } |
1825 | ||
8a9f5d3c GM |
1826 | /* Timer callback function for poll_timer. TIMER is equal to |
1827 | poll_timer. */ | |
1828 | ||
1829 | void | |
1830 | poll_for_input (timer) | |
1831 | struct atimer *timer; | |
1832 | { | |
1833 | if (poll_suppress_count == 0) | |
1834 | poll_for_input_1 (); | |
1835 | } | |
1836 | ||
1837 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1838 | |
1839 | /* Begin signals to poll for input, if they are appropriate. | |
1840 | This function is called unconditionally from various places. */ | |
1841 | ||
07a59269 | 1842 | void |
284f4730 JB |
1843 | start_polling () |
1844 | { | |
1845 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1846 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1847 | { |
8a9f5d3c GM |
1848 | /* Turn alarm handling on unconditionally. It might have |
1849 | been turned off in process.c. */ | |
1850 | turn_on_atimers (1); | |
1851 | ||
1852 | /* If poll timer doesn't exist, are we need one with | |
1853 | a different interval, start a new one. */ | |
1854 | if (poll_timer == NULL | |
1855 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1856 | { |
8a9f5d3c GM |
1857 | EMACS_TIME interval; |
1858 | ||
1859 | if (poll_timer) | |
1860 | cancel_atimer (poll_timer); | |
1861 | ||
1862 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1863 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1864 | poll_for_input, NULL); | |
284f4730 | 1865 | } |
8a9f5d3c GM |
1866 | |
1867 | /* Let the timer's callback function poll for input | |
1868 | if this becomes zero. */ | |
1869 | --poll_suppress_count; | |
284f4730 JB |
1870 | } |
1871 | #endif | |
1872 | } | |
1873 | ||
1d3195db RS |
1874 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1875 | ||
1876 | int | |
1877 | input_polling_used () | |
1878 | { | |
1879 | #ifdef POLL_FOR_INPUT | |
1880 | return read_socket_hook && !interrupt_input; | |
1881 | #else | |
1882 | return 0; | |
1883 | #endif | |
1884 | } | |
1885 | ||
284f4730 JB |
1886 | /* Turn off polling. */ |
1887 | ||
07a59269 | 1888 | void |
284f4730 JB |
1889 | stop_polling () |
1890 | { | |
1891 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1892 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1893 | ++poll_suppress_count; |
284f4730 JB |
1894 | #endif |
1895 | } | |
fe8aeef3 RS |
1896 | |
1897 | /* Set the value of poll_suppress_count to COUNT | |
1898 | and start or stop polling accordingly. */ | |
1899 | ||
1900 | void | |
1901 | set_poll_suppress_count (count) | |
1902 | int count; | |
1903 | { | |
1904 | #ifdef POLL_FOR_INPUT | |
1905 | if (count == 0 && poll_suppress_count != 0) | |
1906 | { | |
1907 | poll_suppress_count = 1; | |
1908 | start_polling (); | |
1909 | } | |
1910 | else if (count != 0 && poll_suppress_count == 0) | |
1911 | { | |
1912 | stop_polling (); | |
1913 | } | |
1914 | poll_suppress_count = count; | |
1915 | #endif | |
1916 | } | |
f4eef8b4 | 1917 | |
d0a57728 RS |
1918 | /* Bind polling_period to a value at least N. |
1919 | But don't decrease it. */ | |
1920 | ||
07a59269 | 1921 | void |
f4eef8b4 RS |
1922 | bind_polling_period (n) |
1923 | int n; | |
1924 | { | |
1925 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1926 | int new = polling_period; |
1927 | ||
1928 | if (n > new) | |
1929 | new = n; | |
1930 | ||
6fe007f7 | 1931 | stop_other_atimers (poll_timer); |
f4eef8b4 | 1932 | stop_polling (); |
d0a57728 RS |
1933 | specbind (Qpolling_period, make_number (new)); |
1934 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1935 | start_polling (); |
1936 | #endif | |
1937 | } | |
284f4730 | 1938 | \f |
6da3dd3a RS |
1939 | /* Apply the control modifier to CHARACTER. */ |
1940 | ||
faf5e407 JB |
1941 | int |
1942 | make_ctrl_char (c) | |
1943 | int c; | |
1944 | { | |
d205953b JB |
1945 | /* Save the upper bits here. */ |
1946 | int upper = c & ~0177; | |
1947 | ||
1948 | c &= 0177; | |
1949 | ||
1950 | /* Everything in the columns containing the upper-case letters | |
1951 | denotes a control character. */ | |
1952 | if (c >= 0100 && c < 0140) | |
1953 | { | |
1954 | int oc = c; | |
1955 | c &= ~0140; | |
1956 | /* Set the shift modifier for a control char | |
1957 | made from a shifted letter. But only for letters! */ | |
1958 | if (oc >= 'A' && oc <= 'Z') | |
1959 | c |= shift_modifier; | |
1960 | } | |
1961 | ||
1962 | /* The lower-case letters denote control characters too. */ | |
1963 | else if (c >= 'a' && c <= 'z') | |
1964 | c &= ~0140; | |
1965 | ||
1966 | /* Include the bits for control and shift | |
1967 | only if the basic ASCII code can't indicate them. */ | |
1968 | else if (c >= ' ') | |
1969 | c |= ctrl_modifier; | |
1970 | ||
1971 | /* Replace the high bits. */ | |
1972 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1973 | |
1974 | return c; | |
1975 | } | |
1976 | ||
d4e68eea GM |
1977 | /* Display help echo in the echo area. |
1978 | ||
8dfd92c9 GM |
1979 | HELP a string means display that string, HELP nil means clear the |
1980 | help echo. If HELP is a function, call it with OBJECT and POS as | |
1981 | arguments; the function should return a help string or nil for | |
1982 | none. For all other types of HELP evaluate it to obtain a string. | |
1983 | ||
2190735a GM |
1984 | WINDOW is the window in which the help was generated, if any. |
1985 | It is nil if not in a window. | |
1986 | ||
5b2ec2d0 GM |
1987 | If OBJECT is a buffer, POS is the position in the buffer where the |
1988 | `help-echo' text property was found. | |
1989 | ||
1990 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
1991 | and POS is the position in the overlay's buffer under the mouse. | |
1992 | ||
1993 | If OBJECT is a string (an overlay string or a string displayed with | |
1994 | the `display' property). POS is the position in that string under | |
1995 | the mouse. | |
d4e68eea GM |
1996 | |
1997 | OK_TO_IVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help | |
1998 | echo overwrites a keystroke echo currently displayed in the echo | |
1999 | area. | |
2000 | ||
8dfd92c9 GM |
2001 | Note: this function may only be called with HELP nil or a string |
2002 | from X code running asynchronously. */ | |
d4e68eea | 2003 | |
31f84d03 | 2004 | void |
2190735a GM |
2005 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2006 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2007 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2008 | { |
8dfd92c9 | 2009 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2010 | { |
8dfd92c9 GM |
2011 | if (FUNCTIONP (help)) |
2012 | { | |
2190735a | 2013 | Lisp_Object args[4]; |
8dfd92c9 | 2014 | args[0] = help; |
2190735a GM |
2015 | args[1] = window; |
2016 | args[2] = object; | |
2017 | args[3] = pos; | |
1db0076e | 2018 | help = safe_call (4, args); |
8dfd92c9 GM |
2019 | } |
2020 | else | |
1db0076e | 2021 | help = safe_eval (help); |
8dfd92c9 GM |
2022 | |
2023 | if (!STRINGP (help)) | |
d4e68eea | 2024 | return; |
31f84d03 SM |
2025 | } |
2026 | ||
8dfd92c9 | 2027 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2028 | { |
2029 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2030 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2031 | else if (/* Don't overwrite minibuffer contents. */ |
2032 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2033 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2034 | && (NILP (echo_message_buffer) |
2035 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2036 | /* Don't overwrite a prompt. */ |
2037 | && !cursor_in_echo_area) | |
2038 | { | |
8dfd92c9 | 2039 | if (STRINGP (help)) |
d4e68eea | 2040 | { |
f0c1cc56 GM |
2041 | int count = BINDING_STACK_SIZE (); |
2042 | ||
2043 | if (!help_echo_showing_p) | |
2044 | Vpre_help_message = current_message (); | |
2045 | ||
d4e68eea | 2046 | specbind (Qmessage_truncate_lines, Qt); |
5ca020fc | 2047 | message3_nolog (help, STRING_BYTES (XSTRING (help)), |
8dfd92c9 | 2048 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2049 | unbind_to (count, Qnil); |
2050 | } | |
f0c1cc56 GM |
2051 | else if (STRINGP (Vpre_help_message)) |
2052 | { | |
2053 | message3_nolog (Vpre_help_message, | |
2054 | STRING_BYTES (XSTRING (Vpre_help_message)), | |
2055 | STRING_MULTIBYTE (Vpre_help_message)); | |
2056 | Vpre_help_message = Qnil; | |
2057 | } | |
d4e68eea | 2058 | else |
f0c1cc56 | 2059 | message (0); |
d4e68eea | 2060 | } |
5295a500 GM |
2061 | |
2062 | help_echo_showing_p = STRINGP (help); | |
d4e68eea | 2063 | } |
31f84d03 SM |
2064 | } |
2065 | ||
faf5e407 JB |
2066 | |
2067 | \f | |
284f4730 JB |
2068 | /* Input of single characters from keyboard */ |
2069 | ||
2070 | Lisp_Object print_help (); | |
2071 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2072 | static void record_char (); |
284f4730 | 2073 | |
c5fdd383 KH |
2074 | #ifdef MULTI_KBOARD |
2075 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2076 | #endif |
beecf6a1 | 2077 | |
284f4730 JB |
2078 | /* read a character from the keyboard; call the redisplay if needed */ |
2079 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2080 | -1 means do not do redisplay, but do do autosaving. | |
2081 | 1 means do both. */ | |
2082 | ||
7d6de002 RS |
2083 | /* The arguments MAPS and NMAPS are for menu prompting. |
2084 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2085 | ||
2086 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2087 | the first event of a key sequence (or not reading a key sequence). |
2088 | If PREV_EVENT is t, that is a "magic" value that says | |
2089 | not to run input methods, but in other respects to act as if | |
2090 | not reading a key sequence. | |
7d6de002 | 2091 | |
83d68044 | 2092 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2093 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2094 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2095 | |
2096 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2097 | |
284f4730 | 2098 | Lisp_Object |
7d6de002 | 2099 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2100 | int commandflag; |
7d6de002 RS |
2101 | int nmaps; |
2102 | Lisp_Object *maps; | |
2103 | Lisp_Object prev_event; | |
2104 | int *used_mouse_menu; | |
284f4730 | 2105 | { |
8c907a56 | 2106 | volatile Lisp_Object c; |
284f4730 | 2107 | int count; |
410d4de9 | 2108 | jmp_buf local_getcjmp; |
284f4730 | 2109 | jmp_buf save_jump; |
8c907a56 | 2110 | volatile int key_already_recorded = 0; |
017c7cb6 | 2111 | Lisp_Object tem, save; |
8c907a56 GM |
2112 | volatile Lisp_Object previous_echo_area_message; |
2113 | volatile Lisp_Object also_record; | |
2114 | volatile int reread; | |
d5eecefb | 2115 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2116 | EMACS_TIME last_idle_start; |
7c3bc944 | 2117 | |
e4fe371d | 2118 | also_record = Qnil; |
284f4730 | 2119 | |
71918b75 RS |
2120 | before_command_key_count = this_command_key_count; |
2121 | before_command_echo_length = echo_length (); | |
ef6661f7 | 2122 | c = Qnil; |
7ee32cda | 2123 | previous_echo_area_message = Qnil; |
71918b75 | 2124 | |
7ee32cda | 2125 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2126 | |
7f07d5ca RS |
2127 | retry: |
2128 | ||
7d18f9ae RS |
2129 | reread = 0; |
2130 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2131 | { |
7539e11f | 2132 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2133 | Vunread_post_input_method_events |
7539e11f | 2134 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2135 | |
2479e91e RS |
2136 | /* Undo what read_char_x_menu_prompt did when it unread |
2137 | additional keys returned by Fx_popup_menu. */ | |
2138 | if (CONSP (c) | |
7539e11f KR |
2139 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2140 | && NILP (XCDR (c))) | |
2141 | c = XCAR (c); | |
2479e91e | 2142 | |
7d18f9ae RS |
2143 | reread = 1; |
2144 | goto reread_first; | |
284f4730 JB |
2145 | } |
2146 | ||
86e5706b RS |
2147 | if (unread_command_char != -1) |
2148 | { | |
18cd2eeb | 2149 | XSETINT (c, unread_command_char); |
86e5706b RS |
2150 | unread_command_char = -1; |
2151 | ||
7d18f9ae RS |
2152 | reread = 1; |
2153 | goto reread_first; | |
2154 | } | |
2155 | ||
2156 | if (CONSP (Vunread_command_events)) | |
2157 | { | |
7539e11f KR |
2158 | c = XCAR (Vunread_command_events); |
2159 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2160 | |
2161 | /* Undo what read_char_x_menu_prompt did when it unread | |
2162 | additional keys returned by Fx_popup_menu. */ | |
2163 | if (CONSP (c) | |
f4e05d97 GM |
2164 | && EQ (XCDR (c), Qdisabled) |
2165 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2166 | c = XCAR (c); |
f4e05d97 | 2167 | |
d17e49a8 GM |
2168 | /* If the queued event is something that used the mouse, |
2169 | set used_mouse_menu accordingly. */ | |
2170 | if (used_mouse_menu | |
2171 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2172 | *used_mouse_menu = 1; | |
2173 | ||
7d18f9ae RS |
2174 | reread = 1; |
2175 | goto reread_for_input_method; | |
2176 | } | |
2177 | ||
2178 | if (CONSP (Vunread_input_method_events)) | |
2179 | { | |
7539e11f KR |
2180 | c = XCAR (Vunread_input_method_events); |
2181 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2182 | |
2183 | /* Undo what read_char_x_menu_prompt did when it unread | |
2184 | additional keys returned by Fx_popup_menu. */ | |
2185 | if (CONSP (c) | |
7539e11f KR |
2186 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2187 | && NILP (XCDR (c))) | |
2188 | c = XCAR (c); | |
7d18f9ae RS |
2189 | reread = 1; |
2190 | goto reread_for_input_method; | |
86e5706b RS |
2191 | } |
2192 | ||
71918b75 RS |
2193 | /* If there is no function key translated before |
2194 | reset-this-command-lengths takes effect, forget about it. */ | |
2195 | before_command_restore_flag = 0; | |
2196 | ||
284f4730 JB |
2197 | if (!NILP (Vexecuting_macro)) |
2198 | { | |
fce33686 JB |
2199 | /* We set this to Qmacro; since that's not a frame, nobody will |
2200 | try to switch frames on us, and the selected window will | |
2201 | remain unchanged. | |
2202 | ||
2203 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2204 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2205 | real event came from. Normally, a switch-frame event selects |
2206 | internal_last_event_frame after each command is read, but | |
2207 | events read from a macro should never cause a new frame to be | |
2208 | selected. */ | |
4c52b668 | 2209 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2210 | |
663258f2 JB |
2211 | /* Exit the macro if we are at the end. |
2212 | Also, some things replace the macro with t | |
2213 | to force an early exit. */ | |
2214 | if (EQ (Vexecuting_macro, Qt) | |
2215 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2216 | { |
18cd2eeb | 2217 | XSETINT (c, -1); |
7c3bc944 | 2218 | RETURN_UNGCPRO (c); |
284f4730 | 2219 | } |
df0f2ba1 | 2220 | |
284f4730 | 2221 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2222 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2223 | && (XINT (c) & 0x80)) |
bb9e9bed | 2224 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2225 | |
284f4730 JB |
2226 | executing_macro_index++; |
2227 | ||
2228 | goto from_macro; | |
2229 | } | |
2230 | ||
cd21b839 JB |
2231 | if (!NILP (unread_switch_frame)) |
2232 | { | |
2233 | c = unread_switch_frame; | |
2234 | unread_switch_frame = Qnil; | |
2235 | ||
2236 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2237 | again, so we do not set `reread'. */ |
f4255cd1 | 2238 | goto reread_first; |
cd21b839 JB |
2239 | } |
2240 | ||
adc1d5c8 | 2241 | /* if redisplay was requested */ |
6e4e64a8 RS |
2242 | if (commandflag >= 0) |
2243 | { | |
adc1d5c8 RS |
2244 | /* If there is pending input, process any events which are not |
2245 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2246 | if (input_pending |
2247 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2248 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2249 | |
adc1d5c8 RS |
2250 | /* Redisplay if no pending input. */ |
2251 | while (!input_pending) | |
2252 | { | |
5295a500 | 2253 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2254 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2255 | else |
2256 | redisplay (); | |
adc1d5c8 RS |
2257 | |
2258 | if (!input_pending) | |
2259 | /* Normal case: no input arrived during redisplay. */ | |
2260 | break; | |
2261 | ||
2262 | /* Input arrived and pre-empted redisplay. | |
2263 | Process any events which are not user-visible. */ | |
2264 | swallow_events (0); | |
2265 | /* If that cleared input_pending, try again to redisplay. */ | |
2266 | } | |
6e4e64a8 | 2267 | } |
e9bf89a0 | 2268 | |
59a84f8e GM |
2269 | /* Message turns off echoing unless more keystrokes turn it on again. |
2270 | ||
2271 | The code in 20.x for the condition was | |
2272 | ||
2273 | 1. echo_area_glyphs && *echo_area_glyphs | |
2274 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2275 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2276 | ||
2277 | (1) means there's a current message displayed | |
2278 | ||
2279 | (2) means it's not the message from echoing from the current | |
2280 | kboard. | |
2281 | ||
2282 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause | |
2283 | is set to a non-null value. This is done in read_char and it is | |
2284 | set to echo_area_glyphs after a call to echo_char. That means | |
2285 | ok_to_echo_at_next_pause is either null or | |
2286 | current_kboard->echobuf with the appropriate current_kboard at | |
2287 | that time. | |
2288 | ||
2289 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2290 | must be either null, or the current message isn't from echoing at | |
2291 | all, or it's from echoing from a different kboard than the | |
2292 | current one. */ | |
2293 | ||
2294 | if (/* There currently something in the echo area */ | |
985f9f66 | 2295 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2296 | && (/* And it's either not from echoing. */ |
2297 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2298 | /* Or it's an echo from a different kboard. */ | |
2299 | || echo_kboard != current_kboard | |
2300 | /* Or we explicitly allow overwriting whatever there is. */ | |
2301 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2302 | cancel_echoing (); |
410d4de9 | 2303 | else |
410d4de9 | 2304 | echo_dash (); |
59a84f8e | 2305 | |
410d4de9 RS |
2306 | /* Try reading a character via menu prompting in the minibuf. |
2307 | Try this before the sit-for, because the sit-for | |
2308 | would do the wrong thing if we are supposed to do | |
2309 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2310 | after a mouse event so don't try a minibuf menu. */ | |
2311 | c = Qnil; | |
2312 | if (nmaps > 0 && INTERACTIVE | |
2313 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2314 | /* Don't bring up a menu if we already have another event. */ | |
2315 | && NILP (Vunread_command_events) | |
2316 | && unread_command_char < 0 | |
4ec4ed6a | 2317 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2318 | { |
2319 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2320 | if (! NILP (c)) | |
2321 | { | |
2322 | key_already_recorded = 1; | |
2323 | goto non_reread_1; | |
2324 | } | |
2325 | } | |
284f4730 | 2326 | |
410d4de9 RS |
2327 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2328 | We will do that below, temporarily for short sections of code, | |
2329 | when appropriate. local_getcjmp must be in effect | |
2330 | around any call to sit_for or kbd_buffer_get_event; | |
2331 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2332 | |
410d4de9 | 2333 | if (_setjmp (local_getcjmp)) |
284f4730 | 2334 | { |
18cd2eeb | 2335 | XSETINT (c, quit_char); |
788f89eb | 2336 | internal_last_event_frame = selected_frame; |
4c52b668 | 2337 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2338 | /* If we report the quit char as an event, |
2339 | don't do so more than once. */ | |
2340 | if (!NILP (Vinhibit_quit)) | |
2341 | Vquit_flag = Qnil; | |
284f4730 | 2342 | |
c5fdd383 | 2343 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2344 | { |
788f89eb | 2345 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2346 | if (kb != current_kboard) |
df0f2ba1 | 2347 | { |
c5fdd383 | 2348 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2349 | /* We shouldn't get here if we were in single-kboard mode! */ |
2350 | if (single_kboard) | |
df0f2ba1 KH |
2351 | abort (); |
2352 | while (CONSP (*tailp)) | |
7539e11f | 2353 | tailp = &XCDR (*tailp); |
df0f2ba1 KH |
2354 | if (!NILP (*tailp)) |
2355 | abort (); | |
2356 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2357 | kb->kbd_queue_has_data = 1; |
2358 | current_kboard = kb; | |
ef6661f7 RS |
2359 | /* This is going to exit from read_char |
2360 | so we had better get rid of this frame's stuff. */ | |
2361 | UNGCPRO; | |
c5fdd383 | 2362 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2363 | } |
2364 | } | |
2365 | #endif | |
284f4730 JB |
2366 | goto non_reread; |
2367 | } | |
2368 | ||
d9d4c147 KH |
2369 | timer_start_idle (); |
2370 | ||
284f4730 JB |
2371 | /* If in middle of key sequence and minibuffer not active, |
2372 | start echoing if enough time elapses. */ | |
410d4de9 | 2373 | |
7ee32cda GM |
2374 | if (minibuf_level == 0 |
2375 | && !current_kboard->immediate_echo | |
6c6083a9 | 2376 | && this_command_key_count > 0 |
27203ead | 2377 | && ! noninteractive |
f2647d04 DL |
2378 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2379 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2380 | && (/* No message. */ |
2381 | NILP (echo_area_buffer[0]) | |
2382 | /* Or empty message. */ | |
2383 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2384 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2385 | /* Or already echoing from same kboard. */ | |
2386 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2387 | /* Or not echoing before and echoing allowed. */ | |
2388 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2389 | { |
2390 | Lisp_Object tem0; | |
985f9f66 | 2391 | |
7d6de002 RS |
2392 | /* After a mouse event, start echoing right away. |
2393 | This is because we are probably about to display a menu, | |
2394 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2395 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2396 | echo_now (); |
7d6de002 RS |
2397 | else |
2398 | { | |
39aab679 DL |
2399 | int sec, usec; |
2400 | double duration = extract_float (Vecho_keystrokes); | |
2401 | sec = (int) duration; | |
15fa88ab | 2402 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2403 | save_getcjmp (save_jump); |
2404 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2405 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2406 | restore_getcjmp (save_jump); |
303b5b3f RS |
2407 | if (EQ (tem0, Qt) |
2408 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2409 | echo_now (); |
7d6de002 | 2410 | } |
284f4730 JB |
2411 | } |
2412 | ||
410d4de9 | 2413 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2414 | |
2415 | if (commandflag != 0 | |
2416 | && auto_save_interval > 0 | |
c43b1734 | 2417 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2418 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2419 | { |
284f4730 | 2420 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2421 | /* Hooks can actually change some buffers in auto save. */ |
2422 | redisplay (); | |
284f4730 JB |
2423 | } |
2424 | ||
8150596a | 2425 | /* Try reading using an X menu. |
24597608 RS |
2426 | This is never confused with reading using the minibuf |
2427 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2428 | does not pass on any keymaps. */ | |
410d4de9 | 2429 | |
24597608 | 2430 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2431 | && !NILP (prev_event) |
2432 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2433 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2434 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2435 | /* Don't bring up a menu if we already have another event. */ |
2436 | && NILP (Vunread_command_events) | |
b8556aee | 2437 | && unread_command_char < 0) |
8eb4d8ef RS |
2438 | { |
2439 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2440 | ||
2441 | /* Now that we have read an event, Emacs is not idle. */ | |
2442 | timer_stop_idle (); | |
2443 | ||
7c3bc944 | 2444 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2445 | } |
7d6de002 | 2446 | |
410d4de9 RS |
2447 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2448 | ||
26c1639e | 2449 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2450 | { |
2451 | int delay_level, buffer_size; | |
2452 | ||
410d4de9 RS |
2453 | /* Slow down auto saves logarithmically in size of current buffer, |
2454 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2455 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2456 | last_non_minibuf_size = Z - BEG; | |
2457 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2458 | delay_level = 0; | |
2459 | while (buffer_size > 64) | |
2460 | delay_level++, buffer_size -= buffer_size >> 2; | |
2461 | if (delay_level < 4) delay_level = 4; | |
2462 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2463 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2464 | ||
2465 | /* Auto save if enough time goes by without input. */ | |
2466 | if (commandflag != 0 | |
c43b1734 | 2467 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2468 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2469 | && XINT (Vauto_save_timeout) > 0) |
2470 | { | |
2471 | Lisp_Object tem0; | |
410d4de9 RS |
2472 | |
2473 | save_getcjmp (save_jump); | |
2474 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2475 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2476 | 0, 1, 1, 0); |
410d4de9 RS |
2477 | restore_getcjmp (save_jump); |
2478 | ||
303b5b3f RS |
2479 | if (EQ (tem0, Qt) |
2480 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2481 | { |
7d6de002 | 2482 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2483 | |
2484 | /* If we have auto-saved and there is still no input | |
2485 | available, garbage collect if there has been enough | |
2486 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2487 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2488 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2489 | Fgarbage_collect (); |
410d4de9 | 2490 | |
ef8fd672 | 2491 | redisplay (); |
7d6de002 RS |
2492 | } |
2493 | } | |
2494 | } | |
284f4730 | 2495 | |
303b5b3f RS |
2496 | /* If this has become non-nil here, it has been set by a timer |
2497 | or sentinel or filter. */ | |
2498 | if (CONSP (Vunread_command_events)) | |
2499 | { | |
7539e11f KR |
2500 | c = XCAR (Vunread_command_events); |
2501 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2502 | } |
2503 | ||
410d4de9 RS |
2504 | /* Read something from current KBOARD's side queue, if possible. */ |
2505 | ||
beecf6a1 | 2506 | if (NILP (c)) |
1e12dd87 | 2507 | { |
c5fdd383 | 2508 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2509 | { |
c5fdd383 | 2510 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2511 | abort (); |
7539e11f | 2512 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2513 | current_kboard->kbd_queue |
7539e11f | 2514 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2515 | if (NILP (current_kboard->kbd_queue)) |
2516 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2517 | input_pending = readable_events (0); |
4c52b668 KH |
2518 | if (EVENT_HAS_PARAMETERS (c) |
2519 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2520 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2521 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2522 | } |
1e8bd3da RS |
2523 | } |
2524 | ||
c5fdd383 | 2525 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2526 | /* If current_kboard's side queue is empty check the other kboards. |
2527 | If one of them has data that we have not yet seen here, | |
2528 | switch to it and process the data waiting for it. | |
2529 | ||
2530 | Note: if the events queued up for another kboard | |
2531 | have already been seen here, and therefore are not a complete command, | |
2532 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2533 | That's to avoid an infinite loop switching between kboards here. */ | |
2534 | if (NILP (c) && !single_kboard) | |
2535 | { | |
2536 | KBOARD *kb; | |
2537 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2538 | if (kb->kbd_queue_has_data) | |
2539 | { | |
2540 | current_kboard = kb; | |
ef6661f7 RS |
2541 | /* This is going to exit from read_char |
2542 | so we had better get rid of this frame's stuff. */ | |
2543 | UNGCPRO; | |
1e8bd3da RS |
2544 | longjmp (wrong_kboard_jmpbuf, 1); |
2545 | } | |
2546 | } | |
df0f2ba1 KH |
2547 | #endif |
2548 | ||
410d4de9 RS |
2549 | wrong_kboard: |
2550 | ||
2551 | stop_polling (); | |
2552 | ||
1e8bd3da RS |
2553 | /* Finally, we read from the main queue, |
2554 | and if that gives us something we can't use yet, we put it on the | |
2555 | appropriate side queue and try again. */ | |
410d4de9 | 2556 | |
1e8bd3da RS |
2557 | if (NILP (c)) |
2558 | { | |
2559 | KBOARD *kb; | |
2560 | ||
1e8bd3da | 2561 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2562 | save_getcjmp (save_jump); |
2563 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2564 | timer_start_idle (); |
83d68044 | 2565 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2566 | restore_getcjmp (save_jump); |
2567 | ||
c5fdd383 | 2568 | #ifdef MULTI_KBOARD |
410d4de9 | 2569 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2570 | { |
2571 | Lisp_Object *tailp = &kb->kbd_queue; | |
2572 | while (CONSP (*tailp)) | |
7539e11f | 2573 | tailp = &XCDR (*tailp); |
1e8bd3da RS |
2574 | if (!NILP (*tailp)) |
2575 | abort (); | |
2576 | *tailp = Fcons (c, Qnil); | |
2577 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2578 | c = Qnil; |
1e8bd3da RS |
2579 | if (single_kboard) |
2580 | goto wrong_kboard; | |
2581 | current_kboard = kb; | |
ef6661f7 RS |
2582 | /* This is going to exit from read_char |
2583 | so we had better get rid of this frame's stuff. */ | |
2584 | UNGCPRO; | |
1e8bd3da | 2585 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2586 | } |
1e8bd3da | 2587 | #endif |
beecf6a1 | 2588 | } |
1e8bd3da | 2589 | |
284f4730 | 2590 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2591 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2592 | Fkill_emacs (make_number (1)); |
2593 | ||
8c18cbfb | 2594 | if (INTEGERP (c)) |
80645119 JB |
2595 | { |
2596 | /* Add in any extra modifiers, where appropriate. */ | |
2597 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2598 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2599 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2600 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2601 | |
2602 | /* Transfer any other modifier bits directly from | |
2603 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2604 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2605 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2606 | } |
9fa4395d | 2607 | |
284f4730 JB |
2608 | non_reread: |
2609 | ||
fdbb67fe GM |
2610 | /* Record the last idle start time so that we can reset it |
2611 | should the next event read be a help-echo. */ | |
2612 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2613 | timer_stop_idle (); |
284f4730 JB |
2614 | start_polling (); |
2615 | ||
410d4de9 RS |
2616 | if (NILP (c)) |
2617 | { | |
2618 | if (commandflag >= 0 | |
4ec4ed6a | 2619 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2620 | redisplay (); |
2621 | ||
2622 | goto wrong_kboard; | |
2623 | } | |
2624 | ||
2625 | non_reread_1: | |
2626 | ||
dfd11da7 | 2627 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2628 | so don't show them to the user. |
2629 | Also, don't record a key if we already did. */ | |
2630 | if (BUFFERP (c) || key_already_recorded) | |
2631 | RETURN_UNGCPRO (c); | |
a1341f75 | 2632 | |
7f07d5ca RS |
2633 | /* Process special events within read_char |
2634 | and loop around to read another event. */ | |
017c7cb6 RS |
2635 | save = Vquit_flag; |
2636 | Vquit_flag = Qnil; | |
02067692 | 2637 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2638 | Vquit_flag = save; |
7f07d5ca RS |
2639 | |
2640 | if (!NILP (tem)) | |
2641 | { | |
ba8dfba8 RS |
2642 | int was_locked = single_kboard; |
2643 | ||
7f07d5ca | 2644 | last_input_char = c; |
158f7532 | 2645 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2646 | |
2647 | /* Resume allowing input from any kboard, if that was true before. */ | |
2648 | if (!was_locked) | |
2649 | any_kboard_state (); | |
2650 | ||
7f07d5ca RS |
2651 | goto retry; |
2652 | } | |
2653 | ||
284f4730 | 2654 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2655 | if (INTEGERP (c)) |
284f4730 JB |
2656 | { |
2657 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2658 | if (XINT (c) == -1) |
7c3bc944 | 2659 | RETURN_UNGCPRO (c); |
284f4730 | 2660 | |
301738ed RS |
2661 | if ((STRINGP (Vkeyboard_translate_table) |
2662 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2663 | || (VECTORP (Vkeyboard_translate_table) | |
2664 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2665 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2666 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2667 | { |
2668 | Lisp_Object d; | |
2669 | d = Faref (Vkeyboard_translate_table, c); | |
2670 | /* nil in keyboard-translate-table means no translation. */ | |
2671 | if (!NILP (d)) | |
2672 | c = d; | |
2673 | } | |
284f4730 JB |
2674 | } |
2675 | ||
e4fe371d RS |
2676 | /* If this event is a mouse click in the menu bar, |
2677 | return just menu-bar for now. Modify the mouse click event | |
2678 | so we won't do this twice, then queue it up. */ | |
2679 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2680 | && CONSP (XCDR (c)) |
e4fe371d | 2681 | && CONSP (EVENT_START (c)) |
7539e11f | 2682 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2683 | { |
e4fe371d | 2684 | Lisp_Object posn; |
284f4730 | 2685 | |
e4fe371d RS |
2686 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2687 | /* Handle menu-bar events: | |
2688 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2689 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2690 | { |
2691 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2692 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2693 | |
e4fe371d RS |
2694 | also_record = c; |
2695 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2696 | c = posn; | |
284f4730 | 2697 | } |
284f4730 JB |
2698 | } |
2699 | ||
7d18f9ae RS |
2700 | /* Store these characters into recent_keys, the dribble file if any, |
2701 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2702 | record_char (c); |
2703 | if (! NILP (also_record)) | |
2704 | record_char (also_record); | |
51172b6d | 2705 | |
d5eecefb RS |
2706 | /* Wipe the echo area. |
2707 | But first, if we are about to use an input method, | |
2708 | save the echo area contents for it to refer to. */ | |
2709 | if (INTEGERP (c) | |
2710 | && ! NILP (Vinput_method_function) | |
2711 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2712 | && (unsigned) XINT (c) != 127 |
2713 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2714 | { |
2715 | previous_echo_area_message = Fcurrent_message (); | |
2716 | Vinput_method_previous_message = previous_echo_area_message; | |
2717 | } | |
d5eecefb | 2718 | |
1172eb8d GM |
2719 | /* Now wipe the echo area, except for help events which do their |
2720 | own stuff with the echo area. */ | |
2721 | if (!CONSP (c) || !(EQ (Qhelp_echo, XCAR (c)))) | |
2722 | { | |
2723 | if (!NILP (echo_area_buffer[0])) | |
2724 | safe_run_hooks (Qecho_area_clear_hook); | |
2725 | clear_message (1, 0); | |
2726 | } | |
d5eecefb | 2727 | |
7d18f9ae | 2728 | reread_for_input_method: |
284f4730 | 2729 | from_macro: |
7d18f9ae | 2730 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2731 | if (INTEGERP (c) |
2732 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2733 | /* Don't run the input method within a key sequence, |
2734 | after the first event of the key sequence. */ | |
2735 | && NILP (prev_event) | |
d5eecefb | 2736 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2737 | && (unsigned) XINT (c) != 127 |
2738 | && (unsigned) XINT (c) < 256) | |
d5eecefb RS |
2739 | { |
2740 | Lisp_Object keys; | |
6e5742a0 | 2741 | int key_count; |
d5eecefb | 2742 | struct gcpro gcpro1; |
b638f328 | 2743 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2744 | |
6e5742a0 RS |
2745 | /* Save the echo status. */ |
2746 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2747 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2748 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2749 | ||
2750 | if (before_command_restore_flag) | |
2751 | { | |
2752 | this_command_key_count = before_command_key_count_1; | |
2753 | if (this_command_key_count < this_single_command_key_start) | |
2754 | this_single_command_key_start = this_command_key_count; | |
2755 | echo_truncate (before_command_echo_length_1); | |
2756 | before_command_restore_flag = 0; | |
2757 | } | |
2758 | ||
2759 | /* Save the this_command_keys status. */ | |
2760 | key_count = this_command_key_count; | |
2761 | ||
2762 | if (key_count > 0) | |
2763 | keys = Fcopy_sequence (this_command_keys); | |
2764 | else | |
2765 | keys = Qnil; | |
d5eecefb | 2766 | GCPRO1 (keys); |
6e5742a0 RS |
2767 | |
2768 | /* Clear out this_command_keys. */ | |
2769 | this_command_key_count = 0; | |
2770 | ||
2771 | /* Now wipe the echo area. */ | |
985f9f66 | 2772 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2773 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2774 | clear_message (1, 0); |
6e5742a0 RS |
2775 | echo_truncate (0); |
2776 | ||
b638f328 RS |
2777 | /* If we are not reading a key sequence, |
2778 | never use the echo area. */ | |
2779 | if (maps == 0) | |
2780 | { | |
b638f328 RS |
2781 | specbind (Qinput_method_use_echo_area, Qt); |
2782 | } | |
2783 | ||
6e5742a0 | 2784 | /* Call the input method. */ |
d5eecefb | 2785 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2786 | |
2787 | tem = unbind_to (count, tem); | |
2788 | ||
6e5742a0 RS |
2789 | /* Restore the saved echoing state |
2790 | and this_command_keys state. */ | |
2791 | this_command_key_count = key_count; | |
2792 | if (key_count > 0) | |
2793 | this_command_keys = keys; | |
2794 | ||
2795 | cancel_echoing (); | |
2796 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2797 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2798 | if (saved_immediate_echo) | |
2799 | echo_now (); | |
2800 | ||
d5eecefb | 2801 | UNGCPRO; |
6e5742a0 | 2802 | |
d5eecefb RS |
2803 | /* The input method can return no events. */ |
2804 | if (! CONSP (tem)) | |
7d18f9ae | 2805 | { |
d5eecefb | 2806 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2807 | if (! NILP (previous_echo_area_message)) |
2808 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2809 | goto retry; |
7d18f9ae | 2810 | } |
d5eecefb | 2811 | /* It returned one event or more. */ |
7539e11f | 2812 | c = XCAR (tem); |
d5eecefb | 2813 | Vunread_post_input_method_events |
7539e11f | 2814 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2815 | } |
7c3bc944 | 2816 | |
7d18f9ae | 2817 | reread_first: |
284f4730 | 2818 | |
7ee32cda | 2819 | /* Display help if not echoing. */ |
1172eb8d | 2820 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 2821 | { |
2190735a GM |
2822 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
2823 | Lisp_Object help, object, position, window; | |
8dfd92c9 | 2824 | help = Fnth (make_number (2), c); |
2190735a GM |
2825 | window = Fnth (make_number (3), c); |
2826 | object = Fnth (make_number (4), c); | |
2827 | position = Fnth (make_number (5), c); | |
2828 | show_help_echo (help, window, object, position, 0); | |
fdbb67fe GM |
2829 | |
2830 | /* We stopped being idle for this event; undo that. */ | |
2831 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
2832 | goto retry; |
2833 | } | |
2834 | ||
7d18f9ae | 2835 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2836 | { |
7d18f9ae RS |
2837 | before_command_key_count = this_command_key_count; |
2838 | before_command_echo_length = echo_length (); | |
2839 | ||
2840 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2841 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2842 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2843 | && ! (EVENT_HAS_PARAMETERS (c) |
2844 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2845 | { | |
2846 | echo_char (c); | |
2847 | if (! NILP (also_record)) | |
2848 | echo_char (also_record); | |
2849 | /* Once we reread a character, echoing can happen | |
2850 | the next time we pause to read a new one. */ | |
985f9f66 | 2851 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2852 | } |
2853 | ||
2854 | /* Record this character as part of the current key. */ | |
2855 | add_command_key (c); | |
e4fe371d | 2856 | if (! NILP (also_record)) |
7d18f9ae | 2857 | add_command_key (also_record); |
e4fe371d | 2858 | } |
b8556aee | 2859 | |
284f4730 | 2860 | last_input_char = c; |
c43b1734 | 2861 | num_input_events++; |
284f4730 JB |
2862 | |
2863 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2864 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2865 | { |
2866 | Lisp_Object tem0; | |
2867 | count = specpdl_ptr - specpdl; | |
2868 | ||
2869 | record_unwind_protect (Fset_window_configuration, | |
2870 | Fcurrent_window_configuration (Qnil)); | |
2871 | ||
2872 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2873 | if (STRINGP (tem0)) |
284f4730 JB |
2874 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2875 | ||
2876 | cancel_echoing (); | |
3cb81011 KH |
2877 | do |
2878 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2879 | while (BUFFERP (c)); |
ff11dfa1 | 2880 | /* Remove the help from the frame */ |
284f4730 | 2881 | unbind_to (count, Qnil); |
410d4de9 | 2882 | |
284f4730 JB |
2883 | redisplay (); |
2884 | if (EQ (c, make_number (040))) | |
2885 | { | |
2886 | cancel_echoing (); | |
3cb81011 KH |
2887 | do |
2888 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2889 | while (BUFFERP (c)); |
284f4730 JB |
2890 | } |
2891 | } | |
2892 | ||
7c3bc944 | 2893 | RETURN_UNGCPRO (c); |
284f4730 JB |
2894 | } |
2895 | ||
8eb4d8ef RS |
2896 | /* Record a key that came from a mouse menu. |
2897 | Record it for echoing, for this-command-keys, and so on. */ | |
2898 | ||
2899 | static void | |
2900 | record_menu_key (c) | |
2901 | Lisp_Object c; | |
2902 | { | |
2903 | /* Wipe the echo area. */ | |
985f9f66 | 2904 | clear_message (1, 0); |
8eb4d8ef RS |
2905 | |
2906 | record_char (c); | |
2907 | ||
2908 | before_command_key_count = this_command_key_count; | |
2909 | before_command_echo_length = echo_length (); | |
2910 | ||
2911 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2912 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2913 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
2914 | { |
2915 | echo_char (c); | |
2916 | ||
2917 | /* Once we reread a character, echoing can happen | |
2918 | the next time we pause to read a new one. */ | |
2919 | ok_to_echo_at_next_pause = 0; | |
2920 | } | |
2921 | ||
2922 | /* Record this character as part of the current key. */ | |
2923 | add_command_key (c); | |
2924 | ||
2925 | /* Re-reading in the middle of a command */ | |
2926 | last_input_char = c; | |
c43b1734 | 2927 | num_input_events++; |
8eb4d8ef RS |
2928 | } |
2929 | ||
ecb7cb34 KH |
2930 | /* Return 1 if should recognize C as "the help character". */ |
2931 | ||
2932 | int | |
2933 | help_char_p (c) | |
2934 | Lisp_Object c; | |
2935 | { | |
2936 | Lisp_Object tail; | |
2937 | ||
2938 | if (EQ (c, Vhelp_char)) | |
2939 | return 1; | |
7539e11f KR |
2940 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
2941 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
2942 | return 1; |
2943 | return 0; | |
2944 | } | |
2945 | ||
e4fe371d RS |
2946 | /* Record the input event C in various ways. */ |
2947 | ||
2948 | static void | |
2949 | record_char (c) | |
2950 | Lisp_Object c; | |
2951 | { | |
e8a50785 | 2952 | /* Don't record `help-echo' in recent_keys unless it shows some help |
52be17cc GM |
2953 | message, and a different help than the previoiusly recorded |
2954 | event. */ | |
2955 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) | |
2956 | { | |
2957 | Lisp_Object help; | |
2958 | ||
2959 | help = Fnth (make_number (2), c); | |
2960 | if (STRINGP (help)) | |
2961 | { | |
2962 | int last_idx; | |
2963 | Lisp_Object last_c, last_help; | |
2964 | ||
2965 | last_idx = recent_keys_index - 1; | |
2966 | if (last_idx < 0) | |
2967 | last_idx = NUM_RECENT_KEYS - 1; | |
2968 | last_c = AREF (recent_keys, last_idx); | |
2969 | ||
2970 | if (!CONSP (last_c) | |
2971 | || !EQ (XCAR (last_c), Qhelp_echo) | |
2972 | || (last_help = Fnth (make_number (2), last_c), | |
2973 | !EQ (last_help, help))) | |
2974 | { | |
2975 | total_keys++; | |
2976 | ASET (recent_keys, recent_keys_index, c); | |
2977 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2978 | recent_keys_index = 0; | |
2979 | } | |
2980 | } | |
2981 | } | |
2982 | else | |
e8a50785 GM |
2983 | { |
2984 | total_keys++; | |
2985 | ASET (recent_keys, recent_keys_index, c); | |
2986 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2987 | recent_keys_index = 0; | |
2988 | } | |
52be17cc | 2989 | |
e4fe371d RS |
2990 | /* Write c to the dribble file. If c is a lispy event, write |
2991 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2992 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2993 | if (dribble) | |
2994 | { | |
2995 | if (INTEGERP (c)) | |
2996 | { | |
2997 | if (XUINT (c) < 0x100) | |
2998 | putc (XINT (c), dribble); | |
2999 | else | |
6de34814 | 3000 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3001 | } |
3002 | else | |
3003 | { | |
3004 | Lisp_Object dribblee; | |
3005 | ||
3006 | /* If it's a structured event, take the event header. */ | |
3007 | dribblee = EVENT_HEAD (c); | |
3008 | ||
3009 | if (SYMBOLP (dribblee)) | |
3010 | { | |
3011 | putc ('<', dribble); | |
3012 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 3013 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
3014 | dribble); |
3015 | putc ('>', dribble); | |
3016 | } | |
3017 | } | |
3018 | ||
3019 | fflush (dribble); | |
3020 | } | |
3021 | ||
e8a50785 GM |
3022 | if (!CONSP (c) || !EQ (Qhelp_echo, XCAR (c))) |
3023 | store_kbd_macro_char (c); | |
e4fe371d | 3024 | |
c43b1734 | 3025 | num_nonmacro_input_events++; |
e4fe371d RS |
3026 | } |
3027 | ||
284f4730 JB |
3028 | Lisp_Object |
3029 | print_help (object) | |
3030 | Lisp_Object object; | |
3031 | { | |
622de3e9 | 3032 | struct buffer *old = current_buffer; |
284f4730 | 3033 | Fprinc (object, Qnil); |
622de3e9 KH |
3034 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3035 | call0 (intern ("help-mode")); | |
3036 | set_buffer_internal (old); | |
284f4730 JB |
3037 | return Qnil; |
3038 | } | |
3039 | ||
3040 | /* Copy out or in the info on where C-g should throw to. | |
3041 | This is used when running Lisp code from within get_char, | |
3042 | in case get_char is called recursively. | |
3043 | See read_process_output. */ | |
3044 | ||
dfcf069d | 3045 | static void |
284f4730 JB |
3046 | save_getcjmp (temp) |
3047 | jmp_buf temp; | |
3048 | { | |
3049 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3050 | } | |
3051 | ||
dfcf069d | 3052 | static void |
284f4730 JB |
3053 | restore_getcjmp (temp) |
3054 | jmp_buf temp; | |
3055 | { | |
3056 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3057 | } | |
284f4730 | 3058 | \f |
2eb6bfbe RM |
3059 | #ifdef HAVE_MOUSE |
3060 | ||
284f4730 JB |
3061 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3062 | of this function. */ | |
a9d77f1f | 3063 | |
284f4730 JB |
3064 | static Lisp_Object |
3065 | tracking_off (old_value) | |
3066 | Lisp_Object old_value; | |
3067 | { | |
71edead1 RS |
3068 | do_mouse_tracking = old_value; |
3069 | if (NILP (old_value)) | |
284f4730 | 3070 | { |
284f4730 JB |
3071 | /* Redisplay may have been preempted because there was input |
3072 | available, and it assumes it will be called again after the | |
3073 | input has been processed. If the only input available was | |
3074 | the sort that we have just disabled, then we need to call | |
3075 | redisplay. */ | |
d9d4c147 | 3076 | if (!readable_events (1)) |
284f4730 | 3077 | { |
3007ebfb | 3078 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3079 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3080 | } |
3081 | } | |
30690496 | 3082 | return Qnil; |
284f4730 JB |
3083 | } |
3084 | ||
3085 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
3086 | "Evaluate BODY with mouse movement events enabled.\n\ |
3087 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
3088 | you can read with `read-event'.\n\ | |
3089 | Normally, mouse motion is ignored.") | |
284f4730 JB |
3090 | (args) |
3091 | Lisp_Object args; | |
3092 | { | |
3093 | int count = specpdl_ptr - specpdl; | |
3094 | Lisp_Object val; | |
3095 | ||
a9d77f1f | 3096 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3097 | |
f3253854 | 3098 | do_mouse_tracking = Qt; |
df0f2ba1 | 3099 | |
284f4730 JB |
3100 | val = Fprogn (args); |
3101 | return unbind_to (count, val); | |
3102 | } | |
2eb6bfbe | 3103 | |
f3253854 KH |
3104 | /* If mouse has moved on some frame, return one of those frames. |
3105 | Return 0 otherwise. */ | |
3106 | ||
3107 | static FRAME_PTR | |
3108 | some_mouse_moved () | |
3109 | { | |
3110 | Lisp_Object tail, frame; | |
3111 | ||
3112 | FOR_EACH_FRAME (tail, frame) | |
3113 | { | |
3114 | if (XFRAME (frame)->mouse_moved) | |
3115 | return XFRAME (frame); | |
3116 | } | |
3117 | ||
3118 | return 0; | |
3119 | } | |
3120 | ||
2eb6bfbe | 3121 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3122 | \f |
3123 | /* Low level keyboard/mouse input. | |
3124 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3125 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3126 | |
3127 | /* Return true iff there are any events in the queue that read-char | |
3128 | would return. If this returns false, a read-char would block. */ | |
3129 | static int | |
d9d4c147 KH |
3130 | readable_events (do_timers_now) |
3131 | int do_timers_now; | |
a612e298 | 3132 | { |
4ec4ed6a RS |
3133 | if (do_timers_now) |
3134 | timer_check (do_timers_now); | |
3135 | ||
beecf6a1 KH |
3136 | if (kbd_fetch_ptr != kbd_store_ptr) |
3137 | return 1; | |
3138 | #ifdef HAVE_MOUSE | |
f3253854 | 3139 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3140 | return 1; |
3141 | #endif | |
1e8bd3da | 3142 | if (single_kboard) |
4c52b668 | 3143 | { |
c5fdd383 | 3144 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3145 | return 1; |
3146 | } | |
3147 | else | |
3148 | { | |
c5fdd383 KH |
3149 | KBOARD *kb; |
3150 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3151 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3152 | return 1; |
3153 | } | |
beecf6a1 | 3154 | return 0; |
a612e298 RS |
3155 | } |
3156 | ||
3157 | /* Set this for debugging, to have a way to get out */ | |
3158 | int stop_character; | |
284f4730 | 3159 | |
c5fdd383 KH |
3160 | #ifdef MULTI_KBOARD |
3161 | static KBOARD * | |
3162 | event_to_kboard (event) | |
5798cf15 KH |
3163 | struct input_event *event; |
3164 | { | |
3165 | Lisp_Object frame; | |
3166 | frame = event->frame_or_window; | |
3167 | if (CONSP (frame)) | |
7539e11f | 3168 | frame = XCAR (frame); |
5798cf15 KH |
3169 | else if (WINDOWP (frame)) |
3170 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3171 | ||
3172 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3173 | For now, just ignore the problem. |
3174 | Also ignore dead frames here. */ | |
3175 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3176 | return 0; |
3177 | else | |
c5fdd383 | 3178 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3179 | } |
3180 | #endif | |
3181 | ||
284f4730 JB |
3182 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3183 | ||
3184 | void | |
3185 | kbd_buffer_store_event (event) | |
3186 | register struct input_event *event; | |
3187 | { | |
3188 | if (event->kind == no_event) | |
3189 | abort (); | |
3190 | ||
3191 | if (event->kind == ascii_keystroke) | |
3192 | { | |
e9bf89a0 | 3193 | register int c = event->code & 0377; |
284f4730 | 3194 | |
faf5e407 JB |
3195 | if (event->modifiers & ctrl_modifier) |
3196 | c = make_ctrl_char (c); | |
3197 | ||
9fd7d808 RS |
3198 | c |= (event->modifiers |
3199 | & (meta_modifier | alt_modifier | |
3200 | | hyper_modifier | super_modifier)); | |
3201 | ||
86e5706b | 3202 | if (c == quit_char) |
284f4730 | 3203 | { |
3e51c7b7 | 3204 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
3205 | #ifdef MULTI_KBOARD |
3206 | KBOARD *kb; | |
5798cf15 KH |
3207 | struct input_event *sp; |
3208 | ||
1e8bd3da | 3209 | if (single_kboard |
c5fdd383 KH |
3210 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3211 | kb != current_kboard)) | |
5798cf15 | 3212 | { |
c5fdd383 | 3213 | kb->kbd_queue |
5798cf15 KH |
3214 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3215 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3216 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3217 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3218 | { | |
3219 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3220 | sp = kbd_buffer; | |
3221 | ||
c5fdd383 | 3222 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
3223 | { |
3224 | sp->kind = no_event; | |
3225 | sp->frame_or_window = Qnil; | |
da8f7368 | 3226 | sp->arg = Qnil; |
5798cf15 KH |
3227 | } |
3228 | } | |
3229 | return; | |
3230 | } | |
3231 | #endif | |
3e51c7b7 | 3232 | |
284f4730 | 3233 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3234 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3235 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3236 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3237 | { |
9b8eb840 | 3238 | Lisp_Object focus; |
4bb994d1 | 3239 | |
9b8eb840 | 3240 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3241 | if (NILP (focus)) |
beecf6a1 | 3242 | focus = event->frame_or_window; |
4c52b668 KH |
3243 | internal_last_event_frame = focus; |
3244 | Vlast_event_frame = focus; | |
4bb994d1 | 3245 | } |
3e51c7b7 | 3246 | |
ffd56f97 | 3247 | last_event_timestamp = event->timestamp; |
284f4730 JB |
3248 | interrupt_signal (); |
3249 | return; | |
3250 | } | |
3251 | ||
3252 | if (c && c == stop_character) | |
3253 | { | |
3254 | sys_suspend (); | |
3255 | return; | |
3256 | } | |
284f4730 | 3257 | } |
3fe8e9a2 RS |
3258 | /* Don't insert two buffer_switch_event's in a row. |
3259 | Just ignore the second one. */ | |
3260 | else if (event->kind == buffer_switch_event | |
3261 | && kbd_fetch_ptr != kbd_store_ptr | |
3262 | && kbd_store_ptr->kind == buffer_switch_event) | |
3263 | return; | |
284f4730 | 3264 | |
beecf6a1 KH |
3265 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3266 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3267 | |
3268 | /* Don't let the very last slot in the buffer become full, | |
3269 | since that would make the two pointers equal, | |
3270 | and that is indistinguishable from an empty buffer. | |
3271 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3272 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3273 | { |
da8f7368 GM |
3274 | int idx; |
3275 | ||
3276 | #if 0 /* The selection_request_event case looks bogus, and it's error | |
3277 | prone to assign individual members for other events, in case | |
3278 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3279 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3280 | sp->kind = event->kind; |
27203ead RS |
3281 | if (event->kind == selection_request_event) |
3282 | { | |
3283 | /* We must not use the ordinary copying code for this case, | |
3284 | since `part' is an enum and copying it might not copy enough | |
3285 | in this case. */ | |
612b78ef | 3286 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3287 | } |
3288 | else | |
da8f7368 | 3289 | |
27203ead | 3290 | { |
612b78ef KH |
3291 | sp->code = event->code; |
3292 | sp->part = event->part; | |
3293 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3294 | sp->arg = event->arg; |
612b78ef KH |
3295 | sp->modifiers = event->modifiers; |
3296 | sp->x = event->x; | |
3297 | sp->y = event->y; | |
3298 | sp->timestamp = event->timestamp; | |
27203ead | 3299 | } |
da8f7368 GM |
3300 | #else |
3301 | *kbd_store_ptr = *event; | |
3302 | #endif | |
284f4730 | 3303 | |
da8f7368 GM |
3304 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3305 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3306 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3307 | ++kbd_store_ptr; | |
284f4730 JB |
3308 | } |
3309 | } | |
8dfd92c9 GM |
3310 | |
3311 | ||
f139e559 | 3312 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3313 | SIZE events. If there's not enough room in BUFP, ignore this |
3314 | event. | |
8dfd92c9 GM |
3315 | |
3316 | HELP is the help form. | |
3317 | ||
3318 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3319 | Lisp object where the help was found (a buffer, a string, an |
3320 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3321 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3322 | |
3323 | Value is the number of input_events generated. */ | |
3324 | ||
3325 | int | |
0bbfdc25 | 3326 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3327 | struct input_event *bufp; |
0bbfdc25 | 3328 | int size; |
2190735a | 3329 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3330 | int pos; |
3331 | { | |
0bbfdc25 GM |
3332 | int nevents_stored = 0; |
3333 | ||
3334 | if (size >= 2) | |
3335 | { | |
3336 | bufp->kind = HELP_EVENT; | |
3337 | bufp->frame_or_window = frame; | |
3338 | bufp->arg = object; | |
3339 | bufp->x = make_number (pos); | |
3340 | bufp->code = 0; | |
8dfd92c9 | 3341 | |
0bbfdc25 GM |
3342 | ++bufp; |
3343 | bufp->kind = HELP_EVENT; | |
3344 | bufp->frame_or_window = WINDOWP (window) ? window : frame; | |
3345 | bufp->arg = help; | |
3346 | bufp->code = 1; | |
3347 | nevents_stored = 2; | |
3348 | } | |
2190735a | 3349 | |
0bbfdc25 | 3350 | return nevents_stored; |
8dfd92c9 GM |
3351 | } |
3352 | ||
3353 | ||
3354 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3355 | ||
3356 | void | |
3357 | kbd_buffer_store_help_event (frame, help) | |
3358 | Lisp_Object frame, help; | |
3359 | { | |
3360 | struct input_event event; | |
3361 | ||
3362 | event.kind = HELP_EVENT; | |
3363 | event.frame_or_window = frame; | |
3364 | event.arg = Qnil; | |
3365 | event.x = make_number (0); | |
3366 | event.code = 0; | |
3367 | kbd_buffer_store_event (&event); | |
3368 | ||
3369 | event.kind = HELP_EVENT; | |
3370 | event.frame_or_window = frame; | |
3371 | event.arg = help; | |
3372 | event.x = make_number (0); | |
3373 | event.code = 1; | |
3374 | kbd_buffer_store_event (&event); | |
3375 | } | |
3376 | ||
a612e298 | 3377 | \f |
07de30b9 GV |
3378 | /* Discard any mouse events in the event buffer by setting them to |
3379 | no_event. */ | |
3380 | void | |
3381 | discard_mouse_events () | |
3382 | { | |
3383 | struct input_event *sp; | |
3384 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3385 | { | |
3386 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3387 | sp = kbd_buffer; | |
3388 | ||
3389 | if (sp->kind == mouse_click | |
3390 | #ifdef WINDOWSNT | |
3391 | || sp->kind == w32_scroll_bar_click | |
3392 | #endif | |
3393 | || sp->kind == scroll_bar_click) | |
3394 | { | |
3395 | sp->kind = no_event; | |
3396 | } | |
3397 | } | |
3398 | } | |
eeabfe76 | 3399 | |
0bbfdc25 GM |
3400 | |
3401 | /* Return non-zero if there are any real events waiting in the event | |
3402 | buffer, not counting `no_event's. | |
3403 | ||
3404 | If DISCARD is non-zero, discard no_event events at the front of | |
3405 | the input queue, possibly leaving the input queue empty if there | |
3406 | are no real input events. */ | |
3407 | ||
eeabfe76 EZ |
3408 | int |
3409 | kbd_buffer_events_waiting (discard) | |
3410 | int discard; | |
3411 | { | |
3412 | struct input_event *sp; | |
0bbfdc25 GM |
3413 | |
3414 | for (sp = kbd_fetch_ptr; | |
3415 | sp != kbd_store_ptr && sp->kind == no_event; | |
3416 | ++sp) | |
eeabfe76 EZ |
3417 | { |
3418 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3419 | sp = kbd_buffer; | |
eeabfe76 | 3420 | } |
0bbfdc25 | 3421 | |
eeabfe76 EZ |
3422 | if (discard) |
3423 | kbd_fetch_ptr = sp; | |
0bbfdc25 GM |
3424 | |
3425 | return sp != kbd_store_ptr && sp->kind != no_event; | |
eeabfe76 | 3426 | } |
0bbfdc25 | 3427 | |
07de30b9 | 3428 | \f |
0bbfdc25 GM |
3429 | /* Clear input event EVENT. */ |
3430 | ||
3431 | static INLINE void | |
3432 | clear_event (event) | |
3433 | struct input_event *event; | |
3434 | { | |
3435 | int idx = 2 * (event - kbd_buffer); | |
3436 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3437 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3438 | event->kind = no_event; | |
3439 | } | |
3440 | ||
3441 | ||
a612e298 RS |
3442 | /* Read one event from the event buffer, waiting if necessary. |
3443 | The value is a Lisp object representing the event. | |
3444 | The value is nil for an event that should be ignored, | |
3445 | or that was handled here. | |
3446 | We always read and discard one event. */ | |
284f4730 JB |
3447 | |
3448 | static Lisp_Object | |
83d68044 | 3449 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3450 | KBOARD **kbp; |
83d68044 | 3451 | int *used_mouse_menu; |
284f4730 JB |
3452 | { |
3453 | register int c; | |
3454 | Lisp_Object obj; | |
3455 | ||
3456 | if (noninteractive) | |
3457 | { | |
3458 | c = getchar (); | |
18cd2eeb | 3459 | XSETINT (obj, c); |
f5b56972 | 3460 | *kbp = current_kboard; |
284f4730 JB |
3461 | return obj; |
3462 | } | |
3463 | ||
3464 | /* Wait until there is input available. */ | |
3465 | for (;;) | |
3466 | { | |
beecf6a1 KH |
3467 | if (kbd_fetch_ptr != kbd_store_ptr) |
3468 | break; | |
3469 | #ifdef HAVE_MOUSE | |
f3253854 | 3470 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3471 | break; |
beecf6a1 | 3472 | #endif |
284f4730 JB |
3473 | |
3474 | /* If the quit flag is set, then read_char will return | |
3475 | quit_char, so that counts as "available input." */ | |
3476 | if (!NILP (Vquit_flag)) | |
3477 | quit_throw_to_read_char (); | |
3478 | ||
3479 | /* One way or another, wait until input is available; then, if | |
3480 | interrupt handlers have not read it, read it now. */ | |
3481 | ||
3482 | #ifdef OLDVMS | |
3483 | wait_for_kbd_input (); | |
3484 | #else | |
3485 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3486 | #ifdef SIGIO | |
3487 | gobble_input (0); | |
3488 | #endif /* SIGIO */ | |
beecf6a1 KH |
3489 | if (kbd_fetch_ptr != kbd_store_ptr) |
3490 | break; | |
3491 | #ifdef HAVE_MOUSE | |
f3253854 | 3492 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3493 | break; |
3494 | #endif | |
3495 | { | |
3496 | Lisp_Object minus_one; | |
f76475ad | 3497 | |
beecf6a1 | 3498 | XSETINT (minus_one, -1); |
d9d4c147 | 3499 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3500 | |
beecf6a1 KH |
3501 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3502 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3503 | read_avail_input (1); | |
3504 | } | |
284f4730 JB |
3505 | #endif /* not VMS */ |
3506 | } | |
3507 | ||
303b5b3f RS |
3508 | if (CONSP (Vunread_command_events)) |
3509 | { | |
3510 | Lisp_Object first; | |
7539e11f KR |
3511 | first = XCAR (Vunread_command_events); |
3512 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3513 | *kbp = current_kboard; |
3514 | return first; | |
3515 | } | |
3516 | ||
284f4730 JB |
3517 | /* At this point, we know that there is a readable event available |
3518 | somewhere. If the event queue is empty, then there must be a | |
3519 | mouse movement enabled and available. */ | |
beecf6a1 | 3520 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3521 | { |
cd21b839 | 3522 | struct input_event *event; |
3e51c7b7 | 3523 | |
beecf6a1 KH |
3524 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3525 | ? kbd_fetch_ptr | |
3526 | : kbd_buffer); | |
3e51c7b7 | 3527 | |
cd21b839 | 3528 | last_event_timestamp = event->timestamp; |
cd21b839 | 3529 | |
c5fdd383 KH |
3530 | #ifdef MULTI_KBOARD |
3531 | *kbp = event_to_kboard (event); | |
3532 | if (*kbp == 0) | |
3533 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3534 | #else |
c5fdd383 | 3535 | *kbp = &the_only_kboard; |
5798cf15 | 3536 | #endif |
beecf6a1 | 3537 | |
4bb994d1 JB |
3538 | obj = Qnil; |
3539 | ||
48e416d4 | 3540 | /* These two kinds of events get special handling |
a612e298 RS |
3541 | and don't actually appear to the command loop. |
3542 | We return nil for them. */ | |
48e416d4 RS |
3543 | if (event->kind == selection_request_event) |
3544 | { | |
598a9fa7 | 3545 | #ifdef HAVE_X11 |
1e8bd3da RS |
3546 | struct input_event copy; |
3547 | ||
4581e928 RS |
3548 | /* Remove it from the buffer before processing it, |
3549 | since otherwise swallow_events will see it | |
3550 | and process it again. */ | |
1e8bd3da | 3551 | copy = *event; |
beecf6a1 | 3552 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3553 | input_pending = readable_events (0); |
4581e928 | 3554 | x_handle_selection_request (©); |
598a9fa7 JB |
3555 | #else |
3556 | /* We're getting selection request events, but we don't have | |
3557 | a window system. */ | |
3558 | abort (); | |
3559 | #endif | |
48e416d4 RS |
3560 | } |
3561 | ||
1e12dd87 | 3562 | else if (event->kind == selection_clear_event) |
48e416d4 | 3563 | { |
598a9fa7 | 3564 | #ifdef HAVE_X11 |
e0301c07 RS |
3565 | struct input_event copy; |
3566 | ||
3567 | /* Remove it from the buffer before processing it. */ | |
3568 | copy = *event; | |
beecf6a1 | 3569 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3570 | input_pending = readable_events (0); |
90c2bb0c | 3571 | x_handle_selection_clear (©); |
598a9fa7 JB |
3572 | #else |
3573 | /* We're getting selection request events, but we don't have | |
3574 | a window system. */ | |
3575 | abort (); | |
3576 | #endif | |
48e416d4 | 3577 | } |
1a578e9b | 3578 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (macintosh) |
990acea3 RS |
3579 | else if (event->kind == delete_window_event) |
3580 | { | |
bbdc2092 RS |
3581 | /* Make an event (delete-frame (FRAME)). */ |
3582 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3583 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3584 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3585 | } |
1a578e9b AC |
3586 | #endif |
3587 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
af17bd2b KH |
3588 | else if (event->kind == iconify_event) |
3589 | { | |
3590 | /* Make an event (iconify-frame (FRAME)). */ | |
3591 | obj = Fcons (event->frame_or_window, Qnil); | |
3592 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3593 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3594 | } |
3595 | else if (event->kind == deiconify_event) | |
3596 | { | |
3597 | /* Make an event (make-frame-visible (FRAME)). */ | |
3598 | obj = Fcons (event->frame_or_window, Qnil); | |
3599 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3600 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3601 | } |
3602 | #endif | |
a8015ab5 KH |
3603 | else if (event->kind == buffer_switch_event) |
3604 | { | |
3605 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3606 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3607 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3608 | } |
1a578e9b | 3609 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
099787c1 RS |
3610 | else if (event->kind == menu_bar_activate_event) |
3611 | { | |
3612 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3613 | input_pending = readable_events (0); |
e649d076 RS |
3614 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3615 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3616 | } |
1161d367 GV |
3617 | #endif |
3618 | #ifdef WINDOWSNT | |
3619 | else if (event->kind == language_change_event) | |
3620 | { | |
3621 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3622 | obj = Fcons (event->modifiers, Qnil); | |
3623 | obj = Fcons (event->code, Qnil); | |
3624 | obj = Fcons (event->frame_or_window, obj); | |
3625 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3626 | kbd_fetch_ptr = event + 1; | |
3627 | } | |
099787c1 | 3628 | #endif |
a612e298 | 3629 | /* Just discard these, by returning nil. |
c5fdd383 | 3630 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3631 | when we need to randomly delete events from the queue. |
3632 | (They shouldn't otherwise be found in the buffer, | |
3633 | but on some machines it appears they do show up | |
c5fdd383 | 3634 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3635 | /* On Windows NT/9X, no_event is used to delete extraneous |
3636 | mouse events during a popup-menu call. */ | |
a612e298 | 3637 | else if (event->kind == no_event) |
beecf6a1 | 3638 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3639 | else if (event->kind == HELP_EVENT) |
3640 | { | |
e4457b09 | 3641 | /* There are always two HELP_EVENTs in the input queue. */ |
2190735a | 3642 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3643 | |
8dfd92c9 GM |
3644 | xassert (event->code == 0); |
3645 | frame = event->frame_or_window; | |
3646 | object = event->arg; | |
3647 | position = event->x; | |
0bbfdc25 | 3648 | clear_event (event); |
e4457b09 GM |
3649 | |
3650 | kbd_fetch_ptr = event + 1; | |
3651 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3652 | ? kbd_fetch_ptr | |
3653 | : kbd_buffer); | |
3654 | xassert (event->code == 1); | |
3655 | help = event->arg; | |
3656 | window = event->frame_or_window; | |
2190735a GM |
3657 | if (!WINDOWP (window)) |
3658 | window = Qnil; | |
3659 | obj = Fcons (Qhelp_echo, | |
3660 | list5 (frame, help, window, object, position)); | |
0bbfdc25 | 3661 | clear_event (event); |
e4457b09 | 3662 | kbd_fetch_ptr = event + 1; |
7ee32cda | 3663 | } |
c51c7093 GM |
3664 | else if (event->kind == FOCUS_IN_EVENT) |
3665 | { | |
3666 | /* Notification of a FocusIn event. The frame receiving the | |
3667 | focus is in event->frame_or_window. Generate a | |
3668 | switch-frame event if necessary. */ | |
3669 | Lisp_Object frame, focus; | |
3670 | ||
3671 | frame = event->frame_or_window; | |
3672 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3673 | if (FRAMEP (focus)) | |
3674 | frame = focus; | |
3675 | ||
3676 | if (!EQ (frame, internal_last_event_frame) | |
3677 | && !EQ (frame, selected_frame)) | |
3678 | obj = make_lispy_switch_frame (frame); | |
3679 | internal_last_event_frame = frame; | |
3680 | kbd_fetch_ptr = event + 1; | |
3681 | } | |
1e12dd87 RS |
3682 | else |
3683 | { | |
c51c7093 GM |
3684 | /* If this event is on a different frame, return a switch-frame this |
3685 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3686 | Lisp_Object frame; |
1e12dd87 | 3687 | Lisp_Object focus; |
7b4aedb9 | 3688 | |
9b8eb840 | 3689 | frame = event->frame_or_window; |
2470a66f | 3690 | if (CONSP (frame)) |
7539e11f | 3691 | frame = XCAR (frame); |
2470a66f | 3692 | else if (WINDOWP (frame)) |
1e12dd87 | 3693 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3694 | |
1e12dd87 RS |
3695 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3696 | if (! NILP (focus)) | |
3697 | frame = focus; | |
07d2b8de | 3698 | |
4c52b668 | 3699 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3700 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3701 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3702 | internal_last_event_frame = frame; |
4bb994d1 | 3703 | |
1e12dd87 RS |
3704 | /* If we didn't decide to make a switch-frame event, go ahead |
3705 | and build a real event from the queue entry. */ | |
cd21b839 | 3706 | |
1e12dd87 RS |
3707 | if (NILP (obj)) |
3708 | { | |
3709 | obj = make_lispy_event (event); | |
da8f7368 | 3710 | |
e98a93eb | 3711 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3712 | /* If this was a menu selection, then set the flag to inhibit |
3713 | writing to last_nonmenu_event. Don't do this if the event | |
3714 | we're returning is (menu-bar), though; that indicates the | |
3715 | beginning of the menu sequence, and we might as well leave | |
3716 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
3717 | if (used_mouse_menu |
3718 | && !EQ (event->frame_or_window, event->arg) | |
3719 | && (event->kind == MENU_BAR_EVENT | |
3720 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
3721 | *used_mouse_menu = 1; |
3722 | #endif | |
1e12dd87 RS |
3723 | |
3724 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 3725 | clear_event (event); |
beecf6a1 | 3726 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3727 | } |
4bb994d1 | 3728 | } |
284f4730 | 3729 | } |
2eb6bfbe | 3730 | #ifdef HAVE_MOUSE |
a612e298 | 3731 | /* Try generating a mouse motion event. */ |
f3253854 | 3732 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3733 | { |
f3253854 | 3734 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3735 | Lisp_Object bar_window; |
3c370943 | 3736 | enum scroll_bar_part part; |
e5d77022 JB |
3737 | Lisp_Object x, y; |
3738 | unsigned long time; | |
284f4730 | 3739 | |
c5fdd383 | 3740 | *kbp = current_kboard; |
e177ac3a RS |
3741 | /* Note that this uses F to determine which display to look at. |
3742 | If there is no valid info, it does not store anything | |
3743 | so x remains nil. */ | |
3744 | x = Qnil; | |
dd26ab75 | 3745 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3746 | |
3747 | obj = Qnil; | |
284f4730 | 3748 | |
4bb994d1 JB |
3749 | /* Decide if we should generate a switch-frame event. Don't |
3750 | generate switch-frame events for motion outside of all Emacs | |
3751 | frames. */ | |
e177ac3a | 3752 | if (!NILP (x) && f) |
cd21b839 | 3753 | { |
9b8eb840 | 3754 | Lisp_Object frame; |
4bb994d1 | 3755 | |
9b8eb840 | 3756 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3757 | if (NILP (frame)) |
18cd2eeb | 3758 | XSETFRAME (frame, f); |
4bb994d1 | 3759 | |
4c52b668 | 3760 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3761 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3762 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3763 | internal_last_event_frame = frame; |
cd21b839 | 3764 | } |
4bb994d1 | 3765 | |
df0f2ba1 | 3766 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3767 | return a mouse-motion event. */ |
e177ac3a | 3768 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3769 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3770 | } |
2eb6bfbe | 3771 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3772 | else |
3773 | /* We were promised by the above while loop that there was | |
3774 | something for us to read! */ | |
3775 | abort (); | |
3776 | ||
d9d4c147 | 3777 | input_pending = readable_events (0); |
284f4730 | 3778 | |
4c52b668 | 3779 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3780 | |
284f4730 JB |
3781 | return (obj); |
3782 | } | |
a612e298 RS |
3783 | \f |
3784 | /* Process any events that are not user-visible, | |
3785 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3786 | |
3787 | void | |
d9d4c147 KH |
3788 | swallow_events (do_display) |
3789 | int do_display; | |
3a3b9632 | 3790 | { |
87dd9b9b RS |
3791 | int old_timers_run; |
3792 | ||
beecf6a1 | 3793 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3794 | { |
3795 | struct input_event *event; | |
3796 | ||
beecf6a1 KH |
3797 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3798 | ? kbd_fetch_ptr | |
3799 | : kbd_buffer); | |
3a3b9632 RS |
3800 | |
3801 | last_event_timestamp = event->timestamp; | |
3802 | ||
3803 | /* These two kinds of events get special handling | |
3804 | and don't actually appear to the command loop. */ | |
3805 | if (event->kind == selection_request_event) | |
3806 | { | |
3807 | #ifdef HAVE_X11 | |
4581e928 | 3808 | struct input_event copy; |
e0301c07 RS |
3809 | |
3810 | /* Remove it from the buffer before processing it, | |
3811 | since otherwise swallow_events called recursively could see it | |
3812 | and process it again. */ | |
4581e928 | 3813 | copy = *event; |
beecf6a1 | 3814 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3815 | input_pending = readable_events (0); |
4581e928 | 3816 | x_handle_selection_request (©); |
3a3b9632 RS |
3817 | #else |
3818 | /* We're getting selection request events, but we don't have | |
3819 | a window system. */ | |
3820 | abort (); | |
3821 | #endif | |
3822 | } | |
3823 | ||
3824 | else if (event->kind == selection_clear_event) | |
3825 | { | |
3826 | #ifdef HAVE_X11 | |
e0301c07 RS |
3827 | struct input_event copy; |
3828 | ||
3829 | /* Remove it from the buffer before processing it, */ | |
3830 | copy = *event; | |
3831 | ||
beecf6a1 | 3832 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3833 | input_pending = readable_events (0); |
90c2bb0c | 3834 | x_handle_selection_clear (©); |
3a3b9632 RS |
3835 | #else |
3836 | /* We're getting selection request events, but we don't have | |
3837 | a window system. */ | |
3838 | abort (); | |
3839 | #endif | |
3840 | } | |
3841 | else | |
3842 | break; | |
3843 | } | |
3844 | ||
87dd9b9b | 3845 | old_timers_run = timers_run; |
d9d4c147 | 3846 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3847 | |
3848 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 3849 | redisplay_preserve_echo_area (7); |
3a3b9632 | 3850 | } |
a612e298 | 3851 | \f |
d9d4c147 KH |
3852 | /* Record the start of when Emacs is idle, |
3853 | for the sake of running idle-time timers. */ | |
3854 | ||
07a59269 | 3855 | void |
d9d4c147 KH |
3856 | timer_start_idle () |
3857 | { | |
3858 | Lisp_Object timers; | |
3859 | ||
3860 | /* If we are already in the idle state, do nothing. */ | |
3861 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3862 | return; | |
3863 | ||
3864 | EMACS_GET_TIME (timer_idleness_start_time); | |
3865 | ||
3866 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3867 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3868 | { |
3869 | Lisp_Object timer; | |
3870 | ||
7539e11f | 3871 | timer = XCAR (timers); |
d9d4c147 KH |
3872 | |
3873 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3874 | continue; | |
3875 | XVECTOR (timer)->contents[0] = Qnil; | |
3876 | } | |
3877 | } | |
3878 | ||
3879 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3880 | ||
07a59269 | 3881 | void |
d9d4c147 KH |
3882 | timer_stop_idle () |
3883 | { | |
3884 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3885 | } | |
3886 | ||
e044e87c RS |
3887 | /* This is only for debugging. */ |
3888 | struct input_event last_timer_event; | |
3889 | ||
c04cbc3b RS |
3890 | /* Check whether a timer has fired. To prevent larger problems we simply |
3891 | disregard elements that are not proper timers. Do not make a circular | |
3892 | timer list for the time being. | |
3893 | ||
3894 | Returns the number of seconds to wait until the next timer fires. If a | |
3895 | timer is triggering now, return zero seconds. | |
3896 | If no timer is active, return -1 seconds. | |
3897 | ||
4ec4ed6a RS |
3898 | If a timer is ripe, we run it, with quitting turned off. |
3899 | ||
3900 | DO_IT_NOW is now ignored. It used to mean that we should | |
3901 | run the timer directly instead of queueing a timer-event. | |
3902 | Now we always run timers directly. */ | |
c04cbc3b RS |
3903 | |
3904 | EMACS_TIME | |
3905 | timer_check (do_it_now) | |
3906 | int do_it_now; | |
3907 | { | |
3908 | EMACS_TIME nexttime; | |
9291c072 RS |
3909 | EMACS_TIME now, idleness_now; |
3910 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3911 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3912 | |
c04cbc3b RS |
3913 | EMACS_SET_SECS (nexttime, -1); |
3914 | EMACS_SET_USECS (nexttime, -1); | |
3915 | ||
9291c072 | 3916 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3917 | timers = Vtimer_list; |
9291c072 RS |
3918 | /* Consider the idle timers only if Emacs is idle. */ |
3919 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3920 | idle_timers = Vtimer_idle_list; | |
3921 | else | |
3922 | idle_timers = Qnil; | |
3923 | chosen_timer = Qnil; | |
3924 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3925 | |
9291c072 | 3926 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3927 | { |
9291c072 RS |
3928 | EMACS_GET_TIME (now); |
3929 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3930 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3931 | } | |
c04cbc3b | 3932 | |
9291c072 RS |
3933 | while (CONSP (timers) || CONSP (idle_timers)) |
3934 | { | |
9291c072 | 3935 | Lisp_Object *vector; |
8c907a56 | 3936 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
3937 | EMACS_TIME timer_time, idle_timer_time; |
3938 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3939 | ||
3940 | /* Skip past invalid timers and timers already handled. */ | |
3941 | if (!NILP (timers)) | |
c04cbc3b | 3942 | { |
7539e11f | 3943 | timer = XCAR (timers); |
9291c072 RS |
3944 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3945 | { | |
7539e11f | 3946 | timers = XCDR (timers); |
9291c072 RS |
3947 | continue; |
3948 | } | |
3949 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3950 | |
9291c072 RS |
3951 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3952 | || !INTEGERP (vector[3]) | |
3953 | || ! NILP (vector[0])) | |
3954 | { | |
7539e11f | 3955 | timers = XCDR (timers); |
9291c072 RS |
3956 | continue; |
3957 | } | |
3958 | } | |
3959 | if (!NILP (idle_timers)) | |
3960 | { | |
7539e11f | 3961 | timer = XCAR (idle_timers); |
d9d4c147 | 3962 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 3963 | { |
7539e11f | 3964 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3965 | continue; |
3966 | } | |
d9d4c147 KH |
3967 | vector = XVECTOR (timer)->contents; |
3968 | ||
3969 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3970 | || !INTEGERP (vector[3]) |
3971 | || ! NILP (vector[0])) | |
3972 | { | |
7539e11f | 3973 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3974 | continue; |
3975 | } | |
3976 | } | |
d9d4c147 | 3977 | |
9291c072 RS |
3978 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3979 | based on the next ordinary timer. | |
3980 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3981 | this timer becomes ripe (negative if it's already ripe). */ | |
3982 | if (!NILP (timers)) | |
3983 | { | |
7539e11f | 3984 | timer = XCAR (timers); |
9291c072 | 3985 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
3986 | EMACS_SET_SECS (timer_time, |
3987 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3988 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3989 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3990 | } | |
ba8dfba8 | 3991 | |
9291c072 RS |
3992 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3993 | based on the next idle timer. */ | |
3994 | if (!NILP (idle_timers)) | |
3995 | { | |
7539e11f | 3996 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
3997 | vector = XVECTOR (idle_timer)->contents; |
3998 | EMACS_SET_SECS (idle_timer_time, | |
3999 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4000 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4001 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4002 | } | |
ba8dfba8 | 4003 | |
9291c072 RS |
4004 | /* Decide which timer is the next timer, |
4005 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4006 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4007 | |
9291c072 RS |
4008 | if (! NILP (timers) && ! NILP (idle_timers)) |
4009 | { | |
4010 | EMACS_TIME temp; | |
4011 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4012 | if (EMACS_TIME_NEG_P (temp)) | |
4013 | { | |
4014 | chosen_timer = timer; | |
7539e11f | 4015 | timers = XCDR (timers); |
9291c072 | 4016 | difference = timer_difference; |
c04cbc3b | 4017 | } |
d9d4c147 | 4018 | else |
d9d4c147 | 4019 | { |
9291c072 | 4020 | chosen_timer = idle_timer; |
7539e11f | 4021 | idle_timers = XCDR (idle_timers); |
9291c072 | 4022 | difference = idle_timer_difference; |
d9d4c147 | 4023 | } |
7ea13e12 | 4024 | } |
9291c072 RS |
4025 | else if (! NILP (timers)) |
4026 | { | |
4027 | chosen_timer = timer; | |
7539e11f | 4028 | timers = XCDR (timers); |
9291c072 RS |
4029 | difference = timer_difference; |
4030 | } | |
4031 | else | |
4032 | { | |
4033 | chosen_timer = idle_timer; | |
7539e11f | 4034 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4035 | difference = idle_timer_difference; |
4036 | } | |
4037 | vector = XVECTOR (chosen_timer)->contents; | |
4038 | ||
bd55b860 | 4039 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4040 | if (EMACS_TIME_NEG_P (difference) |
4041 | || (EMACS_SECS (difference) == 0 | |
4042 | && EMACS_USECS (difference) == 0)) | |
4043 | { | |
4044 | if (NILP (vector[0])) | |
4045 | { | |
d925fb39 | 4046 | int was_locked = single_kboard; |
d0bbfc99 GM |
4047 | int count = BINDING_STACK_SIZE (); |
4048 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; | |
d925fb39 | 4049 | |
9291c072 RS |
4050 | /* Mark the timer as triggered to prevent problems if the lisp |
4051 | code fails to reschedule it right. */ | |
4052 | vector[0] = Qt; | |
4053 | ||
d925fb39 | 4054 | specbind (Qinhibit_quit, Qt); |
d0bbfc99 | 4055 | |
d925fb39 | 4056 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4057 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4058 | timers_run++; |
d925fb39 | 4059 | unbind_to (count, Qnil); |
4ec4ed6a | 4060 | |
d925fb39 RS |
4061 | /* Resume allowing input from any kboard, if that was true before. */ |
4062 | if (!was_locked) | |
4063 | any_kboard_state (); | |
9291c072 | 4064 | |
d925fb39 RS |
4065 | /* Since we have handled the event, |
4066 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4067 | } |
4068 | } | |
4069 | else | |
4070 | /* When we encounter a timer that is still waiting, | |
4071 | return the amount of time to wait before it is ripe. */ | |
4072 | { | |
4073 | UNGCPRO; | |
9291c072 RS |
4074 | return difference; |
4075 | } | |
c04cbc3b | 4076 | } |
9291c072 | 4077 | |
7ea13e12 RS |
4078 | /* No timers are pending in the future. */ |
4079 | /* Return 0 if we generated an event, and -1 if not. */ | |
4080 | UNGCPRO; | |
c04cbc3b RS |
4081 | return nexttime; |
4082 | } | |
4083 | \f | |
284f4730 | 4084 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4085 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4086 | static Lisp_Object func_key_syms; |
4087 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
4088 | #ifdef WINDOWSNT |
4089 | static Lisp_Object mouse_wheel_syms; | |
4090 | #endif | |
a24dc617 | 4091 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4092 | |
e9bf89a0 RS |
4093 | /* This is a list of keysym codes for special "accent" characters. |
4094 | It parallels lispy_accent_keys. */ | |
4095 | ||
4096 | static int lispy_accent_codes[] = | |
4097 | { | |
79a7046c | 4098 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4099 | XK_dead_circumflex, |
79a7046c RS |
4100 | #else |
4101 | 0, | |
4102 | #endif | |
4103 | #ifdef XK_dead_grave | |
e9bf89a0 | 4104 | XK_dead_grave, |
79a7046c RS |
4105 | #else |
4106 | 0, | |
4107 | #endif | |
4108 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4109 | XK_dead_tilde, |
79a7046c RS |
4110 | #else |
4111 | 0, | |
4112 | #endif | |
4113 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4114 | XK_dead_diaeresis, |
79a7046c RS |
4115 | #else |
4116 | 0, | |
4117 | #endif | |
4118 | #ifdef XK_dead_macron | |
e9bf89a0 | 4119 | XK_dead_macron, |
79a7046c RS |
4120 | #else |
4121 | 0, | |
4122 | #endif | |
4123 | #ifdef XK_dead_degree | |
e9bf89a0 | 4124 | XK_dead_degree, |
79a7046c RS |
4125 | #else |
4126 | 0, | |
4127 | #endif | |
4128 | #ifdef XK_dead_acute | |
e9bf89a0 | 4129 | XK_dead_acute, |
79a7046c RS |
4130 | #else |
4131 | 0, | |
4132 | #endif | |
4133 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4134 | XK_dead_cedilla, |
79a7046c RS |
4135 | #else |
4136 | 0, | |
4137 | #endif | |
4138 | #ifdef XK_dead_breve | |
e9bf89a0 | 4139 | XK_dead_breve, |
79a7046c RS |
4140 | #else |
4141 | 0, | |
4142 | #endif | |
4143 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4144 | XK_dead_ogonek, |
79a7046c RS |
4145 | #else |
4146 | 0, | |
4147 | #endif | |
4148 | #ifdef XK_dead_caron | |
e9bf89a0 | 4149 | XK_dead_caron, |
79a7046c RS |
4150 | #else |
4151 | 0, | |
4152 | #endif | |
4153 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4154 | XK_dead_doubleacute, |
79a7046c RS |
4155 | #else |
4156 | 0, | |
4157 | #endif | |
4158 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4159 | XK_dead_abovedot, |
79a7046c RS |
4160 | #else |
4161 | 0, | |
4162 | #endif | |
e9bf89a0 RS |
4163 | }; |
4164 | ||
4165 | /* This is a list of Lisp names for special "accent" characters. | |
4166 | It parallels lispy_accent_codes. */ | |
4167 | ||
4168 | static char *lispy_accent_keys[] = | |
4169 | { | |
4170 | "dead-circumflex", | |
4171 | "dead-grave", | |
4172 | "dead-tilde", | |
4173 | "dead-diaeresis", | |
4174 | "dead-macron", | |
4175 | "dead-degree", | |
4176 | "dead-acute", | |
4177 | "dead-cedilla", | |
4178 | "dead-breve", | |
4179 | "dead-ogonek", | |
4180 | "dead-caron", | |
4181 | "dead-doubleacute", | |
4182 | "dead-abovedot", | |
4183 | }; | |
4184 | ||
e98a93eb GV |
4185 | #ifdef HAVE_NTGUI |
4186 | #define FUNCTION_KEY_OFFSET 0x0 | |
4187 | ||
4188 | char *lispy_function_keys[] = | |
4189 | { | |
4190 | 0, /* 0 */ | |
4191 | ||
4192 | 0, /* VK_LBUTTON 0x01 */ | |
4193 | 0, /* VK_RBUTTON 0x02 */ | |
4194 | "cancel", /* VK_CANCEL 0x03 */ | |
4195 | 0, /* VK_MBUTTON 0x04 */ | |
4196 | ||
4197 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
4198 | ||
4199 | "backspace", /* VK_BACK 0x08 */ | |
4200 | "tab", /* VK_TAB 0x09 */ | |
4201 | ||
4202 | 0, 0, /* 0x0A .. 0x0B */ | |
4203 | ||
4204 | "clear", /* VK_CLEAR 0x0C */ | |
4205 | "return", /* VK_RETURN 0x0D */ | |
4206 | ||
4207 | 0, 0, /* 0x0E .. 0x0F */ | |
4208 | ||
1161d367 GV |
4209 | 0, /* VK_SHIFT 0x10 */ |
4210 | 0, /* VK_CONTROL 0x11 */ | |
4211 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4212 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4213 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
4214 | |
4215 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
4216 | ||
1161d367 | 4217 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
4218 | |
4219 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
4220 | ||
4221 | 0, /* VK_SPACE 0x20 */ | |
4222 | "prior", /* VK_PRIOR 0x21 */ | |
4223 | "next", /* VK_NEXT 0x22 */ | |
4224 | "end", /* VK_END 0x23 */ | |
4225 | "home", /* VK_HOME 0x24 */ | |
4226 | "left", /* VK_LEFT 0x25 */ | |
4227 | "up", /* VK_UP 0x26 */ | |
4228 | "right", /* VK_RIGHT 0x27 */ | |
4229 | "down", /* VK_DOWN 0x28 */ | |
4230 | "select", /* VK_SELECT 0x29 */ | |
4231 | "print", /* VK_PRINT 0x2A */ | |
4232 | "execute", /* VK_EXECUTE 0x2B */ | |
4233 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4234 | "insert", /* VK_INSERT 0x2D */ | |
4235 | "delete", /* VK_DELETE 0x2E */ | |
4236 | "help", /* VK_HELP 0x2F */ | |
4237 | ||
4238 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
4239 | ||
4240 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4241 | ||
4242 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
4243 | ||
4244 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
4245 | ||
4246 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4247 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4248 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4249 | ||
e376f90d RS |
4250 | "lwindow", /* VK_LWIN 0x5B */ |
4251 | "rwindow", /* VK_RWIN 0x5C */ | |
4252 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
4253 | |
4254 | 0, 0, /* 0x5E .. 0x5F */ | |
4255 | ||
4256 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
4257 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4258 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4259 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4260 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4261 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4262 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4263 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4264 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4265 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4266 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4267 | "kp-add", /* VK_ADD 0x6B */ | |
4268 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4269 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4270 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4271 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4272 | "f1", /* VK_F1 0x70 */ | |
4273 | "f2", /* VK_F2 0x71 */ | |
4274 | "f3", /* VK_F3 0x72 */ | |
4275 | "f4", /* VK_F4 0x73 */ | |
4276 | "f5", /* VK_F5 0x74 */ | |
4277 | "f6", /* VK_F6 0x75 */ | |
4278 | "f7", /* VK_F7 0x76 */ | |
4279 | "f8", /* VK_F8 0x77 */ | |
4280 | "f9", /* VK_F9 0x78 */ | |
4281 | "f10", /* VK_F10 0x79 */ | |
4282 | "f11", /* VK_F11 0x7A */ | |
4283 | "f12", /* VK_F12 0x7B */ | |
4284 | "f13", /* VK_F13 0x7C */ | |
4285 | "f14", /* VK_F14 0x7D */ | |
4286 | "f15", /* VK_F15 0x7E */ | |
4287 | "f16", /* VK_F16 0x7F */ | |
4288 | "f17", /* VK_F17 0x80 */ | |
4289 | "f18", /* VK_F18 0x81 */ | |
4290 | "f19", /* VK_F19 0x82 */ | |
4291 | "f20", /* VK_F20 0x83 */ | |
4292 | "f21", /* VK_F21 0x84 */ | |
4293 | "f22", /* VK_F22 0x85 */ | |
4294 | "f23", /* VK_F23 0x86 */ | |
4295 | "f24", /* VK_F24 0x87 */ | |
4296 | ||
4297 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
4298 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
4299 | ||
4300 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
4301 | "scroll", /* VK_SCROLL 0x91 */ | |
4302 | ||
e376f90d RS |
4303 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4304 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4305 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4306 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4307 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4308 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4309 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4310 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4311 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4312 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4313 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4314 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4315 | ||
4316 | 0, 0, /* 0x9E .. 0x9F */ | |
4317 | ||
e98a93eb GV |
4318 | /* |
4319 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4320 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4321 | * No other API or message will distinguish left and right keys this way. |
4322 | */ | |
4323 | /* 0xA0 .. 0xEF */ | |
4324 | ||
4325 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4326 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4327 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4328 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4329 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4330 | ||
4331 | /* 0xF0 .. 0xF5 */ | |
4332 | ||
4333 | 0, 0, 0, 0, 0, 0, | |
4334 | ||
4335 | "attn", /* VK_ATTN 0xF6 */ | |
4336 | "crsel", /* VK_CRSEL 0xF7 */ | |
4337 | "exsel", /* VK_EXSEL 0xF8 */ | |
4338 | "ereof", /* VK_EREOF 0xF9 */ | |
4339 | "play", /* VK_PLAY 0xFA */ | |
4340 | "zoom", /* VK_ZOOM 0xFB */ | |
4341 | "noname", /* VK_NONAME 0xFC */ | |
4342 | "pa1", /* VK_PA1 0xFD */ | |
4343 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4344 | 0 /* 0xFF */ |
e98a93eb GV |
4345 | }; |
4346 | ||
04f215f0 | 4347 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4348 | |
37cd9f30 KH |
4349 | #ifdef XK_kana_A |
4350 | static char *lispy_kana_keys[] = | |
4351 | { | |
4352 | /* X Keysym value */ | |
4353 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4354 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4355 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4356 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4357 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4358 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4359 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4360 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4361 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4362 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
4363 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
4364 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
4365 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4366 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4367 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4368 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4369 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4370 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4371 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4372 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4373 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4374 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4375 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4376 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4377 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4378 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4379 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4380 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4381 | }; | |
4382 | #endif /* XK_kana_A */ | |
4383 | ||
04f215f0 RS |
4384 | #define FUNCTION_KEY_OFFSET 0xff00 |
4385 | ||
284f4730 JB |
4386 | /* You'll notice that this table is arranged to be conveniently |
4387 | indexed by X Windows keysym values. */ | |
4388 | static char *lispy_function_keys[] = | |
4389 | { | |
4390 | /* X Keysym value */ | |
4391 | ||
75045dcb RS |
4392 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4393 | "backspace", "tab", "linefeed", "clear", | |
4394 | 0, "return", 0, 0, | |
4395 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4396 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4397 | 0, 0, 0, 0, |
75045dcb RS |
4398 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4399 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4400 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4401 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4402 | "eisu-toggle", /* 0xff30...3f */ | |
4403 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4404 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4405 | ||
75045dcb RS |
4406 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4407 | "down", "prior", "next", "end", | |
4408 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4409 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4410 | "print", | |
4411 | "execute", | |
4412 | "insert", | |
4413 | 0, /* 0xff64 */ | |
4414 | "undo", | |
4415 | "redo", | |
4416 | "menu", | |
4417 | "find", | |
4418 | "cancel", | |
4419 | "help", | |
4420 | "break", /* 0xff6b */ | |
4421 | ||
75045dcb RS |
4422 | 0, 0, 0, 0, |
4423 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4424 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4425 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4426 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4427 | "kp-tab", /* 0xff89 */ | |
4428 | 0, 0, 0, | |
4429 | "kp-enter", /* 0xff8d */ | |
4430 | 0, 0, 0, | |
4431 | "kp-f1", /* 0xff91 */ | |
4432 | "kp-f2", | |
4433 | "kp-f3", | |
4434 | "kp-f4", | |
872157e7 RS |
4435 | "kp-home", /* 0xff95 */ |
4436 | "kp-left", | |
4437 | "kp-up", | |
4438 | "kp-right", | |
4439 | "kp-down", | |
4440 | "kp-prior", /* kp-page-up */ | |
4441 | "kp-next", /* kp-page-down */ | |
4442 | "kp-end", | |
4443 | "kp-begin", | |
4444 | "kp-insert", | |
4445 | "kp-delete", | |
4446 | 0, /* 0xffa0 */ | |
4447 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4448 | "kp-multiply", /* 0xffaa */ |
4449 | "kp-add", | |
4450 | "kp-separator", | |
4451 | "kp-subtract", | |
4452 | "kp-decimal", | |
4453 | "kp-divide", /* 0xffaf */ | |
4454 | "kp-0", /* 0xffb0 */ | |
4455 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4456 | 0, /* 0xffba */ | |
4457 | 0, 0, | |
4458 | "kp-equal", /* 0xffbd */ | |
4459 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4460 | "f2", |
4461 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4462 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4463 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4464 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4465 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4466 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4467 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4468 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4469 | }; |
284f4730 | 4470 | |
04f215f0 RS |
4471 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4472 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4473 | ||
4474 | static char *iso_lispy_function_keys[] = | |
4475 | { | |
4476 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4477 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4478 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4479 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4480 | "iso-lefttab", /* 0xfe20 */ | |
4481 | "iso-move-line-up", "iso-move-line-down", | |
4482 | "iso-partial-line-up", "iso-partial-line-down", | |
4483 | "iso-partial-space-left", "iso-partial-space-right", | |
4484 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4485 | "iso-release-margin-left", "iso-release-margin-right", | |
4486 | "iso-release-both-margins", | |
4487 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4488 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4489 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4490 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4491 | }; | |
4492 | ||
4493 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4494 | |
8e1e4240 | 4495 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4496 | |
07de30b9 GV |
4497 | #ifdef WINDOWSNT |
4498 | /* mouse-wheel events are generated by the wheel on devices such as | |
4499 | the MS Intellimouse. The wheel sits in between the left and right | |
4500 | mouse buttons, and is typically used to scroll or zoom the window | |
4501 | underneath the pointer. mouse-wheel events specify the object on | |
4502 | which they operate, and a delta corresponding to the amount and | |
4503 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4504 | generates a mouse-2 event. */ | |
4505 | static char *lispy_mouse_wheel_names[] = | |
4506 | { | |
4507 | "mouse-wheel" | |
4508 | }; | |
a24dc617 | 4509 | |
07de30b9 GV |
4510 | #endif /* WINDOWSNT */ |
4511 | ||
a24dc617 RS |
4512 | /* drag-n-drop events are generated when a set of selected files are |
4513 | dragged from another application and dropped onto an Emacs window. */ | |
4514 | static char *lispy_drag_n_drop_names[] = | |
4515 | { | |
4516 | "drag-n-drop" | |
4517 | }; | |
4518 | ||
3c370943 | 4519 | /* Scroll bar parts. */ |
4bb994d1 | 4520 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4521 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4522 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4523 | |
3c370943 JB |
4524 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4525 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4526 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4527 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4528 | }; |
4529 | ||
5bf68f6e AS |
4530 | /* User signal events. */ |
4531 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4532 | ||
4533 | Lisp_Object *lispy_user_signals[] = | |
4534 | { | |
4535 | &Qusr1_signal, &Qusr2_signal | |
4536 | }; | |
4537 | ||
4bb994d1 | 4538 | |
7b4aedb9 | 4539 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4540 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4541 | |
4542 | The elements have the form | |
4543 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4544 | where REST is the cdr of a position as it would be reported in the event. | |
4545 | ||
4546 | The make_lispy_event function stores positions here to tell the | |
4547 | difference between click and drag events, and to store the starting | |
4548 | location to be included in drag events. */ | |
4549 | ||
4550 | static Lisp_Object button_down_location; | |
88cb0656 | 4551 | |
fbcd35bd JB |
4552 | /* Information about the most recent up-going button event: Which |
4553 | button, what location, and what time. */ | |
4554 | ||
559f9d04 RS |
4555 | static int last_mouse_button; |
4556 | static int last_mouse_x; | |
4557 | static int last_mouse_y; | |
4558 | static unsigned long button_down_time; | |
fbcd35bd | 4559 | |
222d557c GM |
4560 | /* The maximum time between clicks to make a double-click, or Qnil to |
4561 | disable double-click detection, or Qt for no time limit. */ | |
4562 | ||
564dc952 | 4563 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4564 | |
222d557c GM |
4565 | /* Maximum number of pixels the mouse may be moved between clicks |
4566 | to make a double-click. */ | |
4567 | ||
4568 | int double_click_fuzz; | |
4569 | ||
fbcd35bd JB |
4570 | /* The number of clicks in this multiple-click. */ |
4571 | ||
4572 | int double_click_count; | |
4573 | ||
284f4730 JB |
4574 | /* Given a struct input_event, build the lisp event which represents |
4575 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4576 | movement buffer, which should have a movement event in it. |
4577 | ||
4578 | Note that events must be passed to this function in the order they | |
4579 | are received; this function stores the location of button presses | |
4580 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4581 | |
4582 | static Lisp_Object | |
4583 | make_lispy_event (event) | |
4584 | struct input_event *event; | |
4585 | { | |
79a7046c RS |
4586 | int i; |
4587 | ||
0220c518 | 4588 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4589 | { |
284f4730 JB |
4590 | /* A simple keystroke. */ |
4591 | case ascii_keystroke: | |
86e5706b | 4592 | { |
9343ab07 | 4593 | Lisp_Object lispy_c; |
e9bf89a0 | 4594 | int c = event->code & 0377; |
5a1c6df8 JB |
4595 | /* Turn ASCII characters into control characters |
4596 | when proper. */ | |
4597 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4598 | c = make_ctrl_char (c); |
4599 | ||
4600 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4601 | just above, and the shift key was taken care of by the X code, | |
4602 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4603 | c |= (event->modifiers |
4604 | & (meta_modifier | alt_modifier | |
4605 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4606 | /* Distinguish Shift-SPC from SPC. */ |
4607 | if ((event->code & 0377) == 040 | |
4608 | && event->modifiers & shift_modifier) | |
4609 | c |= shift_modifier; | |
559f9d04 | 4610 | button_down_time = 0; |
bb9e9bed | 4611 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4612 | return lispy_c; |
86e5706b | 4613 | } |
284f4730 | 4614 | |
a50e723f KH |
4615 | case multibyte_char_keystroke: |
4616 | { | |
4617 | Lisp_Object lispy_c; | |
4618 | ||
4619 | XSETFASTINT (lispy_c, event->code); | |
4620 | return lispy_c; | |
4621 | } | |
4622 | ||
284f4730 JB |
4623 | /* A function key. The symbol may need to have modifier prefixes |
4624 | tacked onto it. */ | |
4625 | case non_ascii_keystroke: | |
559f9d04 | 4626 | button_down_time = 0; |
e9bf89a0 RS |
4627 | |
4628 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4629 | if (event->code == lispy_accent_codes[i]) | |
4630 | return modify_event_symbol (i, | |
4631 | event->modifiers, | |
80e4aa30 | 4632 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4633 | lispy_accent_keys, &accent_key_syms, |
4634 | (sizeof (lispy_accent_keys) | |
4635 | / sizeof (lispy_accent_keys[0]))); | |
4636 | ||
270a208f | 4637 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4638 | if (event->code & (1 << 28)) |
4639 | { | |
4640 | /* We need to use an alist rather than a vector as the cache | |
4641 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4642 | if (NILP (current_kboard->system_key_syms)) |
4643 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4644 | return modify_event_symbol (event->code, |
80e4aa30 | 4645 | event->modifiers, |
7c97ffdc KH |
4646 | Qfunction_key, |
4647 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4648 | 0, ¤t_kboard->system_key_syms, |
4649 | (unsigned)-1); | |
80e4aa30 RS |
4650 | } |
4651 | ||
37cd9f30 KH |
4652 | #ifdef XK_kana_A |
4653 | if (event->code >= 0x400 && event->code < 0x500) | |
4654 | return modify_event_symbol (event->code - 0x400, | |
4655 | event->modifiers & ~shift_modifier, | |
4656 | Qfunction_key, Qnil, | |
4657 | lispy_kana_keys, &func_key_syms, | |
4658 | (sizeof (lispy_kana_keys) | |
4659 | / sizeof (lispy_kana_keys[0]))); | |
4660 | #endif /* XK_kana_A */ | |
4661 | ||
111c4138 | 4662 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4663 | if (event->code < FUNCTION_KEY_OFFSET |
4664 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4665 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4666 | event->modifiers, | |
4667 | Qfunction_key, Qnil, | |
4668 | iso_lispy_function_keys, &func_key_syms, | |
4669 | (sizeof (iso_lispy_function_keys) | |
4670 | / sizeof (iso_lispy_function_keys[0]))); | |
4671 | else | |
111c4138 | 4672 | #endif |
04f215f0 RS |
4673 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4674 | event->modifiers, | |
4675 | Qfunction_key, Qnil, | |
4676 | lispy_function_keys, &func_key_syms, | |
4677 | (sizeof (lispy_function_keys) | |
4678 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4679 | |
514354e9 | 4680 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4681 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4682 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4683 | case mouse_click: |
7ee32cda | 4684 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4685 | case scroll_bar_click: |
7ee32cda | 4686 | #endif |
284f4730 | 4687 | { |
e9bf89a0 | 4688 | int button = event->code; |
559f9d04 | 4689 | int is_double; |
7b4aedb9 | 4690 | Lisp_Object position; |
dbc4e1c1 JB |
4691 | Lisp_Object *start_pos_ptr; |
4692 | Lisp_Object start_pos; | |
284f4730 | 4693 | |
8c907a56 GM |
4694 | position = Qnil; |
4695 | ||
7b4aedb9 JB |
4696 | /* Build the position as appropriate for this mouse click. */ |
4697 | if (event->kind == mouse_click) | |
284f4730 | 4698 | { |
7b4aedb9 | 4699 | int part; |
598a9fa7 | 4700 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4701 | Lisp_Object window; |
7b4aedb9 | 4702 | Lisp_Object posn; |
7ee32cda | 4703 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4704 | int row, column; |
4705 | ||
5da3133a RS |
4706 | /* Ignore mouse events that were made on frame that |
4707 | have been deleted. */ | |
4708 | if (! FRAME_LIVE_P (f)) | |
4709 | return Qnil; | |
4710 | ||
7ee32cda GM |
4711 | /* EVENT->x and EVENT->y are frame-relative pixel |
4712 | coordinates at this place. Under old redisplay, COLUMN | |
4713 | and ROW are set to frame relative glyph coordinates | |
4714 | which are then used to determine whether this click is | |
4715 | in a menu (non-toolkit version). */ | |
4716 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4717 | &column, &row, NULL, 1); | |
7b4aedb9 | 4718 | |
eef045bf RS |
4719 | #ifndef USE_X_TOOLKIT |
4720 | /* In the non-toolkit version, clicks on the menu bar | |
4721 | are ordinary button events in the event buffer. | |
4722 | Distinguish them, and invoke the menu. | |
4723 | ||
4724 | (In the toolkit version, the toolkit handles the menu bar | |
4725 | and Emacs doesn't know about it until after the user | |
4726 | makes a selection.) */ | |
2ee250ec RS |
4727 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4728 | && (event->modifiers & down_modifier)) | |
bb936752 | 4729 | { |
b7c49376 | 4730 | Lisp_Object items, item; |
0a0e8fe6 RS |
4731 | int hpos; |
4732 | int i; | |
4733 | ||
2ee250ec | 4734 | #if 0 |
0a0e8fe6 RS |
4735 | /* Activate the menu bar on the down event. If the |
4736 | up event comes in before the menu code can deal with it, | |
4737 | just ignore it. */ | |
4738 | if (! (event->modifiers & down_modifier)) | |
4739 | return Qnil; | |
2ee250ec | 4740 | #endif |
0aafc975 | 4741 | |
7ee32cda | 4742 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4743 | item = Qnil; |
5ec75a55 | 4744 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4745 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4746 | { |
4747 | Lisp_Object pos, string; | |
129004d3 GM |
4748 | string = AREF (items, i + 1); |
4749 | pos = AREF (items, i + 3); | |
b7c49376 RS |
4750 | if (NILP (string)) |
4751 | break; | |
9e20143a RS |
4752 | if (column >= XINT (pos) |
4753 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 | 4754 | { |
129004d3 | 4755 | item = AREF (items, i); |
b7c49376 RS |
4756 | break; |
4757 | } | |
5ec75a55 | 4758 | } |
9e20143a | 4759 | |
7ee32cda GM |
4760 | /* ELisp manual 2.4b says (x y) are window relative but |
4761 | code says they are frame-relative. */ | |
5ec75a55 RS |
4762 | position |
4763 | = Fcons (event->frame_or_window, | |
4764 | Fcons (Qmenu_bar, | |
4765 | Fcons (Fcons (event->x, event->y), | |
4766 | Fcons (make_number (event->timestamp), | |
4767 | Qnil)))); | |
4768 | ||
b7c49376 | 4769 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4770 | } |
eef045bf | 4771 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4772 | |
7ee32cda GM |
4773 | /* Set `window' to the window under frame pixel coordinates |
4774 | event->x/event->y. */ | |
4775 | window = window_from_coordinates (f, XINT (event->x), | |
4776 | XINT (event->y), &part, 0); | |
0aafc975 | 4777 | |
8c18cbfb | 4778 | if (!WINDOWP (window)) |
78ced549 RS |
4779 | { |
4780 | window = event->frame_or_window; | |
4781 | posn = Qnil; | |
4782 | } | |
284f4730 | 4783 | else |
7b4aedb9 | 4784 | { |
7ee32cda GM |
4785 | /* It's a click in window window at frame coordinates |
4786 | event->x/ event->y. */ | |
4787 | struct window *w = XWINDOW (window); | |
4788 | ||
4789 | /* Get window relative coordinates. Original code | |
4790 | `rounded' this to glyph boundaries. */ | |
4791 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4792 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4793 | ||
4794 | /* Set event coordinates to window-relative coordinates | |
4795 | for constructing the Lisp event below. */ | |
4796 | XSETINT (event->x, wx); | |
4797 | XSETINT (event->y, wy); | |
4798 | ||
4799 | if (part == 1 || part == 3) | |
4800 | { | |
902ae620 | 4801 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
4802 | the mouse that may have a `local-map' property. */ |
4803 | Lisp_Object string; | |
4804 | int charpos; | |
4805 | ||
045dee35 | 4806 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4807 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4808 | if (STRINGP (string)) | |
4809 | string_info = Fcons (string, make_number (charpos)); | |
4810 | } | |
7b4aedb9 JB |
4811 | else if (part == 2) |
4812 | posn = Qvertical_line; | |
4813 | else | |
a955ffa2 GM |
4814 | { |
4815 | Lisp_Object object; | |
4816 | struct display_pos p; | |
4817 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
4818 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
4819 | if (STRINGP (object)) |
4820 | string_info | |
4821 | = Fcons (object, | |
4822 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 4823 | } |
7b4aedb9 JB |
4824 | } |
4825 | ||
5ec75a55 RS |
4826 | position |
4827 | = Fcons (window, | |
4828 | Fcons (posn, | |
4829 | Fcons (Fcons (event->x, event->y), | |
4830 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4831 | (NILP (string_info) |
4832 | ? Qnil | |
4833 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4834 | } |
7ee32cda | 4835 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4836 | else |
88cb0656 | 4837 | { |
7ee32cda | 4838 | /* It's a scrollbar click. */ |
9e20143a RS |
4839 | Lisp_Object window; |
4840 | Lisp_Object portion_whole; | |
4841 | Lisp_Object part; | |
4842 | ||
4843 | window = event->frame_or_window; | |
4844 | portion_whole = Fcons (event->x, event->y); | |
4845 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4846 | |
db08707d RS |
4847 | position |
4848 | = Fcons (window, | |
4849 | Fcons (Qvertical_scroll_bar, | |
4850 | Fcons (portion_whole, | |
4851 | Fcons (make_number (event->timestamp), | |
4852 | Fcons (part, Qnil))))); | |
88cb0656 | 4853 | } |
7ee32cda | 4854 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4855 | |
129004d3 | 4856 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
4857 | { |
4858 | button_down_location = larger_vector (button_down_location, | |
4859 | button + 1, Qnil); | |
4860 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
4861 | } | |
4862 | ||
129004d3 | 4863 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
4864 | start_pos = *start_pos_ptr; |
4865 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4866 | |
559f9d04 | 4867 | is_double = (button == last_mouse_button |
222d557c GM |
4868 | && (abs (XINT (event->x) - last_mouse_x) |
4869 | <= double_click_fuzz) | |
4870 | && (abs (XINT (event->y) - last_mouse_y) | |
4871 | <= double_click_fuzz) | |
559f9d04 RS |
4872 | && button_down_time != 0 |
4873 | && (EQ (Vdouble_click_time, Qt) | |
4874 | || (INTEGERP (Vdouble_click_time) | |
4875 | && ((int)(event->timestamp - button_down_time) | |
4876 | < XINT (Vdouble_click_time))))); | |
222d557c | 4877 | |
559f9d04 RS |
4878 | last_mouse_button = button; |
4879 | last_mouse_x = XINT (event->x); | |
4880 | last_mouse_y = XINT (event->y); | |
4881 | ||
7b4aedb9 JB |
4882 | /* If this is a button press, squirrel away the location, so |
4883 | we can decide later whether it was a click or a drag. */ | |
4884 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4885 | { |
4886 | if (is_double) | |
4887 | { | |
4888 | double_click_count++; | |
4889 | event->modifiers |= ((double_click_count > 2) | |
4890 | ? triple_modifier | |
4891 | : double_modifier); | |
4892 | } | |
4893 | else | |
4894 | double_click_count = 1; | |
4895 | button_down_time = event->timestamp; | |
4896 | *start_pos_ptr = Fcopy_alist (position); | |
4897 | } | |
7b4aedb9 | 4898 | |
88cb0656 | 4899 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4900 | see if this was a click or a drag. */ |
88cb0656 JB |
4901 | else if (event->modifiers & up_modifier) |
4902 | { | |
129004d3 GM |
4903 | /* If we did not see a down before this up, ignore the up. |
4904 | Probably this happened because the down event chose a | |
4905 | menu item. It would be an annoyance to treat the | |
4906 | release of the button that chose the menu item as a | |
4907 | separate event. */ | |
48e416d4 | 4908 | |
8c18cbfb | 4909 | if (!CONSP (start_pos)) |
48e416d4 RS |
4910 | return Qnil; |
4911 | ||
88cb0656 | 4912 | event->modifiers &= ~up_modifier; |
48e416d4 | 4913 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4914 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4915 | event->modifiers |= click_modifier; |
4916 | else | |
48e416d4 | 4917 | #endif |
dbc4e1c1 JB |
4918 | { |
4919 | /* The third element of every position should be the (x,y) | |
4920 | pair. */ | |
9b8eb840 | 4921 | Lisp_Object down; |
dbc4e1c1 | 4922 | |
9b8eb840 | 4923 | down = Fnth (make_number (2), start_pos); |
129004d3 GM |
4924 | if (EQ (event->x, XCAR (down)) && EQ (event->y, XCDR (down))) |
4925 | /* Mouse hasn't moved. */ | |
4926 | event->modifiers |= click_modifier; | |
fbcd35bd JB |
4927 | else |
4928 | { | |
129004d3 GM |
4929 | Lisp_Object window1, window2, posn1, posn2; |
4930 | ||
4931 | /* Avoid generating a drag event if the mouse | |
4932 | hasn't actually moved off the buffer position. */ | |
4933 | window1 = Fnth (make_number (0), position); | |
4934 | posn1 = Fnth (make_number (1), position); | |
4935 | window2 = Fnth (make_number (0), start_pos); | |
4936 | posn2 = Fnth (make_number (1), start_pos); | |
4937 | ||
4938 | if (EQ (window1, window2) && EQ (posn1, posn2)) | |
4939 | event->modifiers |= click_modifier; | |
4940 | else | |
4941 | { | |
4942 | button_down_time = 0; | |
4943 | event->modifiers |= drag_modifier; | |
4944 | } | |
fbcd35bd | 4945 | } |
129004d3 | 4946 | |
bc536d84 RS |
4947 | /* Don't check is_double; treat this as multiple |
4948 | if the down-event was multiple. */ | |
4949 | if (double_click_count > 1) | |
4950 | event->modifiers |= ((double_click_count > 2) | |
4951 | ? triple_modifier | |
4952 | : double_modifier); | |
dbc4e1c1 | 4953 | } |
88cb0656 JB |
4954 | } |
4955 | else | |
4956 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4957 | the up_modifier set. */ |
88cb0656 JB |
4958 | abort (); |
4959 | ||
88cb0656 | 4960 | { |
7b4aedb9 | 4961 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4962 | Lisp_Object head; |
4963 | ||
4964 | head = modify_event_symbol (button, | |
4965 | event->modifiers, | |
8e1e4240 GM |
4966 | Qmouse_click, Vlispy_mouse_stem, |
4967 | NULL, | |
4968 | &mouse_syms, | |
4969 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 4970 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4971 | return Fcons (head, |
4972 | Fcons (start_pos, | |
4973 | Fcons (position, | |
4974 | Qnil))); | |
fbcd35bd JB |
4975 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4976 | return Fcons (head, | |
4977 | Fcons (position, | |
4978 | Fcons (make_number (double_click_count), | |
4979 | Qnil))); | |
88cb0656 JB |
4980 | else |
4981 | return Fcons (head, | |
7b4aedb9 | 4982 | Fcons (position, |
88cb0656 JB |
4983 | Qnil)); |
4984 | } | |
284f4730 | 4985 | } |
db08707d | 4986 | |
7ee32cda GM |
4987 | #if USE_TOOLKIT_SCROLL_BARS |
4988 | ||
4989 | /* We don't have down and up events if using toolkit scroll bars, | |
4990 | so make this always a click event. Store in the `part' of | |
4991 | the Lisp event a symbol which maps to the following actions: | |
4992 | ||
4993 | `above_handle' page up | |
4994 | `below_handle' page down | |
4995 | `up' line up | |
4996 | `down' line down | |
4997 | `top' top of buffer | |
4998 | `bottom' bottom of buffer | |
4999 | `handle' thumb has been dragged. | |
5000 | `end-scroll' end of interaction with scroll bar | |
5001 | ||
5002 | The incoming input_event contains in its `part' member an | |
5003 | index of type `enum scroll_bar_part' which we can use as an | |
5004 | index in scroll_bar_parts to get the appropriate symbol. */ | |
5005 | ||
5006 | case scroll_bar_click: | |
5007 | { | |
5008 | Lisp_Object position, head, window, portion_whole, part; | |
5009 | ||
5010 | window = event->frame_or_window; | |
5011 | portion_whole = Fcons (event->x, event->y); | |
5012 | part = *scroll_bar_parts[(int) event->part]; | |
5013 | ||
5014 | position | |
5015 | = Fcons (window, | |
5016 | Fcons (Qvertical_scroll_bar, | |
5017 | Fcons (portion_whole, | |
5018 | Fcons (make_number (event->timestamp), | |
5019 | Fcons (part, Qnil))))); | |
5020 | ||
5021 | /* Always treat scroll bar events as clicks. */ | |
5022 | event->modifiers |= click_modifier; | |
5023 | ||
5024 | /* Get the symbol we should use for the mouse click. */ | |
5025 | head = modify_event_symbol (event->code, | |
5026 | event->modifiers, | |
8e1e4240 GM |
5027 | Qmouse_click, |
5028 | Vlispy_mouse_stem, | |
5029 | NULL, &mouse_syms, | |
5030 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5031 | return Fcons (head, Fcons (position, Qnil)); |
5032 | } | |
5033 | ||
5034 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
5035 | ||
db08707d | 5036 | #ifdef WINDOWSNT |
fbd6baed | 5037 | case w32_scroll_bar_click: |
db08707d RS |
5038 | { |
5039 | int button = event->code; | |
5040 | int is_double; | |
5041 | Lisp_Object position; | |
5042 | Lisp_Object *start_pos_ptr; | |
5043 | Lisp_Object start_pos; | |
5044 | ||
db08707d RS |
5045 | { |
5046 | Lisp_Object window; | |
5047 | Lisp_Object portion_whole; | |
5048 | Lisp_Object part; | |
5049 | ||
5050 | window = event->frame_or_window; | |
5051 | portion_whole = Fcons (event->x, event->y); | |
5052 | part = *scroll_bar_parts[(int) event->part]; | |
5053 | ||
e8886a1d RS |
5054 | position |
5055 | = Fcons (window, | |
5056 | Fcons (Qvertical_scroll_bar, | |
5057 | Fcons (portion_whole, | |
5058 | Fcons (make_number (event->timestamp), | |
5059 | Fcons (part, Qnil))))); | |
db08707d RS |
5060 | } |
5061 | ||
fbd6baed | 5062 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5063 | event->modifiers |= click_modifier; |
5064 | ||
5065 | { | |
5066 | /* Get the symbol we should use for the mouse click. */ | |
5067 | Lisp_Object head; | |
5068 | ||
5069 | head = modify_event_symbol (button, | |
5070 | event->modifiers, | |
8e1e4240 GM |
5071 | Qmouse_click, |
5072 | Vlispy_mouse_stem, | |
5073 | NULL, &mouse_syms, | |
5074 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5075 | return Fcons (head, |
5076 | Fcons (position, | |
5077 | Qnil)); | |
5078 | } | |
5079 | } | |
07de30b9 GV |
5080 | case mouse_wheel: |
5081 | { | |
5082 | int part; | |
5083 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5084 | Lisp_Object window; | |
5085 | Lisp_Object posn; | |
5086 | Lisp_Object head, position; | |
5087 | int row, column; | |
5088 | ||
5089 | /* Ignore mouse events that were made on frame that | |
5090 | have been deleted. */ | |
5091 | if (! FRAME_LIVE_P (f)) | |
5092 | return Qnil; | |
5093 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5094 | &column, &row, NULL, 1); | |
afabdbe5 JR |
5095 | window = window_from_coordinates (f, XINT (event->x), |
5096 | XINT (event->y), &part, 0); | |
07de30b9 GV |
5097 | |
5098 | if (!WINDOWP (window)) | |
5099 | { | |
5100 | window = event->frame_or_window; | |
5101 | posn = Qnil; | |
5102 | } | |
5103 | else | |
5104 | { | |
5105 | int pixcolumn, pixrow; | |
5106 | column -= XINT (XWINDOW (window)->left); | |
5107 | row -= XINT (XWINDOW (window)->top); | |
e1bfeab2 JR |
5108 | glyph_to_pixel_coords (XWINDOW(window), column, row, |
5109 | &pixcolumn, &pixrow); | |
07de30b9 GV |
5110 | XSETINT (event->x, pixcolumn); |
5111 | XSETINT (event->y, pixrow); | |
5112 | ||
5113 | if (part == 1) | |
5114 | posn = Qmode_line; | |
5115 | else if (part == 2) | |
5116 | posn = Qvertical_line; | |
7ee32cda | 5117 | else if (part == 3) |
045dee35 | 5118 | posn = Qheader_line; |
07de30b9 | 5119 | else |
a955ffa2 GM |
5120 | { |
5121 | Lisp_Object object; | |
5122 | struct display_pos p; | |
5123 | buffer_posn_from_coords (XWINDOW (window), &column, &row, | |
5124 | &object, &p); | |
5125 | posn = make_number (CHARPOS (p.pos)); | |
5126 | } | |
07de30b9 | 5127 | } |
db08707d | 5128 | |
07de30b9 GV |
5129 | { |
5130 | Lisp_Object head, position; | |
5131 | ||
5132 | position | |
5133 | = Fcons (window, | |
5134 | Fcons (posn, | |
5135 | Fcons (Fcons (event->x, event->y), | |
5136 | Fcons (make_number (event->timestamp), | |
5137 | Qnil)))); | |
5138 | ||
5139 | head = modify_event_symbol (0, event->modifiers, | |
5140 | Qmouse_wheel, Qnil, | |
5141 | lispy_mouse_wheel_names, | |
5142 | &mouse_wheel_syms, 1); | |
5143 | return Fcons (head, | |
5144 | Fcons (position, | |
5145 | Fcons (make_number (event->code), | |
5146 | Qnil))); | |
5147 | } | |
5148 | } | |
5149 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
5150 | |
5151 | case drag_n_drop: | |
5152 | { | |
5153 | int part; | |
5154 | FRAME_PTR f; | |
5155 | Lisp_Object window; | |
5156 | Lisp_Object posn; | |
a24dc617 | 5157 | Lisp_Object files; |
a24dc617 RS |
5158 | |
5159 | /* The frame_or_window field should be a cons of the frame in | |
5160 | which the event occurred and a list of the filenames | |
5161 | dropped. */ | |
5162 | if (! CONSP (event->frame_or_window)) | |
5163 | abort (); | |
5164 | ||
7539e11f KR |
5165 | f = XFRAME (XCAR (event->frame_or_window)); |
5166 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5167 | |
5168 | /* Ignore mouse events that were made on frames that | |
5169 | have been deleted. */ | |
5170 | if (! FRAME_LIVE_P (f)) | |
5171 | return Qnil; | |
afabdbe5 JR |
5172 | |
5173 | window = window_from_coordinates (f, XINT (event->x), | |
5174 | XINT (event->y), &part, 0); | |
a24dc617 RS |
5175 | |
5176 | if (!WINDOWP (window)) | |
5177 | { | |
7539e11f | 5178 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5179 | posn = Qnil; |
5180 | } | |
5181 | else | |
5182 | { | |
7ee32cda GM |
5183 | /* It's an event in window `window' at frame coordinates |
5184 | event->x/ event->y. */ | |
5185 | struct window *w = XWINDOW (window); | |
5186 | ||
5187 | /* Get window relative coordinates. */ | |
5188 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5189 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5190 | ||
5191 | /* Set event coordinates to window-relative coordinates | |
5192 | for constructing the Lisp event below. */ | |
5193 | XSETINT (event->x, wx); | |
5194 | XSETINT (event->y, wy); | |
a24dc617 RS |
5195 | |
5196 | if (part == 1) | |
5197 | posn = Qmode_line; | |
5198 | else if (part == 2) | |
5199 | posn = Qvertical_line; | |
7ee32cda | 5200 | else if (part == 3) |
045dee35 | 5201 | posn = Qheader_line; |
a24dc617 | 5202 | else |
a955ffa2 GM |
5203 | { |
5204 | Lisp_Object object; | |
5205 | struct display_pos p; | |
5206 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5207 | posn = make_number (CHARPOS (p.pos)); | |
5208 | } | |
a24dc617 RS |
5209 | } |
5210 | ||
5211 | { | |
5212 | Lisp_Object head, position; | |
5213 | ||
5214 | position | |
5215 | = Fcons (window, | |
5216 | Fcons (posn, | |
5217 | Fcons (Fcons (event->x, event->y), | |
5218 | Fcons (make_number (event->timestamp), | |
5219 | Qnil)))); | |
5220 | ||
5221 | head = modify_event_symbol (0, event->modifiers, | |
5222 | Qdrag_n_drop, Qnil, | |
5223 | lispy_drag_n_drop_names, | |
5224 | &drag_n_drop_syms, 1); | |
5225 | return Fcons (head, | |
5226 | Fcons (position, | |
5227 | Fcons (files, | |
5228 | Qnil))); | |
5229 | } | |
5230 | } | |
514354e9 | 5231 | #endif /* HAVE_MOUSE */ |
284f4730 | 5232 | |
1a578e9b | 5233 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
da8f7368 GM |
5234 | case MENU_BAR_EVENT: |
5235 | if (EQ (event->arg, event->frame_or_window)) | |
5236 | /* This is the prefix key. We translate this to | |
5237 | `(menu_bar)' because the code in keyboard.c for menu | |
5238 | events, which we use, relies on this. */ | |
5239 | return Fcons (Qmenu_bar, Qnil); | |
5240 | return event->arg; | |
2470a66f KH |
5241 | #endif |
5242 | ||
9ea173e8 | 5243 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5244 | if (EQ (event->arg, event->frame_or_window)) |
5245 | /* This is the prefix key. We translate this to | |
5246 | `(tool_bar)' because the code in keyboard.c for menu | |
5247 | events, which we use, relies on this. */ | |
5248 | return Fcons (Qtool_bar, Qnil); | |
5249 | else if (SYMBOLP (event->arg)) | |
5250 | return apply_modifiers (event->modifiers, event->arg); | |
5251 | return event->arg; | |
5252 | ||
5253 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5254 | /* A user signal. */ |
5255 | return *lispy_user_signals[event->code]; | |
5256 | ||
284f4730 JB |
5257 | /* The 'kind' field of the event is something we don't recognize. */ |
5258 | default: | |
48e416d4 | 5259 | abort (); |
284f4730 JB |
5260 | } |
5261 | } | |
5262 | ||
514354e9 | 5263 | #ifdef HAVE_MOUSE |
6cbff1cb | 5264 | |
284f4730 | 5265 | static Lisp_Object |
7b4aedb9 | 5266 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5267 | FRAME_PTR frame; |
7b4aedb9 | 5268 | Lisp_Object bar_window; |
3c370943 | 5269 | enum scroll_bar_part part; |
284f4730 | 5270 | Lisp_Object x, y; |
e5d77022 | 5271 | unsigned long time; |
284f4730 | 5272 | { |
3c370943 | 5273 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5274 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5275 | { |
9b8eb840 | 5276 | Lisp_Object part_sym; |
4bb994d1 | 5277 | |
9b8eb840 | 5278 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5279 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5280 | (Fcons (Fcons (bar_window, |
3c370943 | 5281 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5282 | Fcons (Fcons (x, y), |
5283 | Fcons (make_number (time), | |
cb5df6ae | 5284 | Fcons (part_sym, |
4bb994d1 JB |
5285 | Qnil))))), |
5286 | Qnil))); | |
5287 | } | |
5288 | ||
5289 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5290 | else |
5291 | { | |
4bb994d1 | 5292 | int area; |
9e20143a | 5293 | Lisp_Object window; |
4bb994d1 | 5294 | Lisp_Object posn; |
9e20143a | 5295 | |
9e20143a | 5296 | if (frame) |
7ee32cda GM |
5297 | /* It's in a frame; which window on that frame? */ |
5298 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
5299 | else |
5300 | window = Qnil; | |
4bb994d1 | 5301 | |
8c18cbfb | 5302 | if (WINDOWP (window)) |
4bb994d1 | 5303 | { |
7ee32cda | 5304 | struct window *w = XWINDOW (window); |
7ee32cda | 5305 | int wx, wy; |
7ee32cda GM |
5306 | |
5307 | /* Get window relative coordinates. */ | |
5308 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
5309 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
5310 | XSETINT (x, wx); | |
5311 | XSETINT (y, wy); | |
5312 | ||
4bb994d1 JB |
5313 | if (area == 1) |
5314 | posn = Qmode_line; | |
5315 | else if (area == 2) | |
5316 | posn = Qvertical_line; | |
7ee32cda | 5317 | else if (area == 3) |
045dee35 | 5318 | posn = Qheader_line; |
4bb994d1 | 5319 | else |
a955ffa2 GM |
5320 | { |
5321 | Lisp_Object object; | |
5322 | struct display_pos p; | |
5323 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5324 | posn = make_number (CHARPOS (p.pos)); | |
5325 | } | |
4bb994d1 | 5326 | } |
e9bf89a0 RS |
5327 | else if (frame != 0) |
5328 | { | |
18cd2eeb | 5329 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5330 | posn = Qnil; |
5331 | } | |
284f4730 | 5332 | else |
4bb994d1 JB |
5333 | { |
5334 | window = Qnil; | |
5335 | posn = Qnil; | |
bb9e9bed KH |
5336 | XSETFASTINT (x, 0); |
5337 | XSETFASTINT (y, 0); | |
4bb994d1 | 5338 | } |
284f4730 | 5339 | |
4bb994d1 JB |
5340 | return Fcons (Qmouse_movement, |
5341 | Fcons (Fcons (window, | |
5342 | Fcons (posn, | |
5343 | Fcons (Fcons (x, y), | |
5344 | Fcons (make_number (time), | |
5345 | Qnil)))), | |
5346 | Qnil)); | |
5347 | } | |
284f4730 JB |
5348 | } |
5349 | ||
514354e9 | 5350 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5351 | |
cd21b839 JB |
5352 | /* Construct a switch frame event. */ |
5353 | static Lisp_Object | |
5354 | make_lispy_switch_frame (frame) | |
5355 | Lisp_Object frame; | |
5356 | { | |
5357 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5358 | } | |
0a7f1fc0 JB |
5359 | \f |
5360 | /* Manipulating modifiers. */ | |
284f4730 | 5361 | |
0a7f1fc0 | 5362 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5363 | |
0a7f1fc0 JB |
5364 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5365 | SYMBOL's name of the end of the modifiers; the string from this | |
5366 | position is the unmodified symbol name. | |
284f4730 | 5367 | |
0a7f1fc0 | 5368 | This doesn't use any caches. */ |
6da3dd3a | 5369 | |
0a7f1fc0 JB |
5370 | static int |
5371 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5372 | Lisp_Object symbol; |
0a7f1fc0 | 5373 | int *modifier_end; |
284f4730 JB |
5374 | { |
5375 | struct Lisp_String *name; | |
5376 | int i; | |
5377 | int modifiers; | |
284f4730 JB |
5378 | |
5379 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 5380 | |
284f4730 JB |
5381 | modifiers = 0; |
5382 | name = XSYMBOL (symbol)->name; | |
5383 | ||
fc932ac6 | 5384 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
5385 | { |
5386 | int this_mod_end = 0; | |
5387 | int this_mod = 0; | |
284f4730 | 5388 | |
6da3dd3a RS |
5389 | /* See if the name continues with a modifier word. |
5390 | Check that the word appears, but don't check what follows it. | |
5391 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5392 | |
6da3dd3a RS |
5393 | switch (name->data[i]) |
5394 | { | |
5395 | #define SINGLE_LETTER_MOD(BIT) \ | |
5396 | (this_mod_end = i + 1, this_mod = BIT) | |
5397 | ||
6da3dd3a RS |
5398 | case 'A': |
5399 | SINGLE_LETTER_MOD (alt_modifier); | |
5400 | break; | |
284f4730 | 5401 | |
6da3dd3a RS |
5402 | case 'C': |
5403 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5404 | break; | |
284f4730 | 5405 | |
6da3dd3a RS |
5406 | case 'H': |
5407 | SINGLE_LETTER_MOD (hyper_modifier); | |
5408 | break; | |
5409 | ||
6da3dd3a RS |
5410 | case 'M': |
5411 | SINGLE_LETTER_MOD (meta_modifier); | |
5412 | break; | |
5413 | ||
6da3dd3a RS |
5414 | case 'S': |
5415 | SINGLE_LETTER_MOD (shift_modifier); | |
5416 | break; | |
5417 | ||
5418 | case 's': | |
6da3dd3a RS |
5419 | SINGLE_LETTER_MOD (super_modifier); |
5420 | break; | |
5421 | ||
0a7f1fc0 | 5422 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
5423 | } |
5424 | ||
5425 | /* If we found no modifier, stop looking for them. */ | |
5426 | if (this_mod_end == 0) | |
5427 | break; | |
5428 | ||
5429 | /* Check there is a dash after the modifier, so that it | |
5430 | really is a modifier. */ | |
fc932ac6 RS |
5431 | if (this_mod_end >= STRING_BYTES (name) |
5432 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
5433 | break; |
5434 | ||
5435 | /* This modifier is real; look for another. */ | |
5436 | modifiers |= this_mod; | |
5437 | i = this_mod_end + 1; | |
5438 | } | |
284f4730 | 5439 | |
0a7f1fc0 | 5440 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5441 | if (! (modifiers & (down_modifier | drag_modifier |
5442 | | double_modifier | triple_modifier)) | |
fc932ac6 | 5443 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 5444 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 5445 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
5446 | modifiers |= click_modifier; |
5447 | ||
5448 | if (modifier_end) | |
5449 | *modifier_end = i; | |
5450 | ||
5451 | return modifiers; | |
5452 | } | |
5453 | ||
0a7f1fc0 JB |
5454 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5455 | prepended to the string BASE[0..BASE_LEN-1]. | |
5456 | This doesn't use any caches. */ | |
5457 | static Lisp_Object | |
301738ed | 5458 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5459 | int modifiers; |
5460 | char *base; | |
301738ed | 5461 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5462 | { |
5463 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5464 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5465 | reference to it. */ | |
301738ed RS |
5466 | char *new_mods |
5467 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5468 | int mod_len; |
284f4730 | 5469 | |
284f4730 | 5470 | { |
0a7f1fc0 JB |
5471 | char *p = new_mods; |
5472 | ||
5473 | /* Only the event queue may use the `up' modifier; it should always | |
5474 | be turned into a click or drag event before presented to lisp code. */ | |
5475 | if (modifiers & up_modifier) | |
5476 | abort (); | |
5477 | ||
5478 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5479 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5480 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5481 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5482 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5483 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5484 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5485 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5486 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5487 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5488 | /* The click modifier is denoted by the absence of other modifiers. */ |
5489 | ||
5490 | *p = '\0'; | |
5491 | ||
5492 | mod_len = p - new_mods; | |
5493 | } | |
284f4730 | 5494 | |
0a7f1fc0 | 5495 | { |
9b8eb840 | 5496 | Lisp_Object new_name; |
df0f2ba1 | 5497 | |
301738ed RS |
5498 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5499 | mod_len + base_len_byte); | |
0a7f1fc0 | 5500 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 5501 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
5502 | |
5503 | return Fintern (new_name, Qnil); | |
5504 | } | |
5505 | } | |
5506 | ||
5507 | ||
0a7f1fc0 JB |
5508 | static char *modifier_names[] = |
5509 | { | |
fbcd35bd | 5510 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5511 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5512 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5513 | }; |
80645119 | 5514 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5515 | |
5516 | static Lisp_Object modifier_symbols; | |
5517 | ||
5518 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5519 | static Lisp_Object | |
5520 | lispy_modifier_list (modifiers) | |
5521 | int modifiers; | |
5522 | { | |
5523 | Lisp_Object modifier_list; | |
5524 | int i; | |
5525 | ||
5526 | modifier_list = Qnil; | |
80645119 | 5527 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5528 | if (modifiers & (1<<i)) |
80645119 JB |
5529 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5530 | modifier_list); | |
0a7f1fc0 JB |
5531 | |
5532 | return modifier_list; | |
5533 | } | |
5534 | ||
5535 | ||
5536 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5537 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5538 | MASK is the set of modifiers present in SYMBOL's name. | |
5539 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5540 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5541 | Qevent_symbol_elements property. */ | |
3d31316f | 5542 | |
1161d367 | 5543 | Lisp_Object |
0a7f1fc0 JB |
5544 | parse_modifiers (symbol) |
5545 | Lisp_Object symbol; | |
5546 | { | |
9b8eb840 | 5547 | Lisp_Object elements; |
0a7f1fc0 | 5548 | |
9b8eb840 | 5549 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5550 | if (CONSP (elements)) |
5551 | return elements; | |
5552 | else | |
5553 | { | |
5554 | int end; | |
ec0faad2 | 5555 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5556 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5557 | Lisp_Object mask; |
5558 | ||
9b8eb840 | 5559 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5560 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5561 | Qnil); |
5562 | ||
ec0faad2 | 5563 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 5564 | abort (); |
bb9e9bed | 5565 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5566 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5567 | ||
5568 | /* Cache the parsing results on SYMBOL. */ | |
5569 | Fput (symbol, Qevent_symbol_element_mask, | |
5570 | elements); | |
5571 | Fput (symbol, Qevent_symbol_elements, | |
5572 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5573 | ||
5574 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5575 | it would be nice to put that in unmodified's cache. | |
5576 | But we can't, since we're not sure that parse_modifiers is | |
5577 | canonical. */ | |
5578 | ||
5579 | return elements; | |
5580 | } | |
5581 | } | |
5582 | ||
5583 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5584 | BASE must be unmodified. | |
5585 | ||
5586 | This is like apply_modifiers_uncached, but uses BASE's | |
5587 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5588 | Qevent_symbol_elements properties, since it has that info anyway. |
5589 | ||
5590 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5591 | the modified symbol. */ | |
0a7f1fc0 JB |
5592 | static Lisp_Object |
5593 | apply_modifiers (modifiers, base) | |
5594 | int modifiers; | |
5595 | Lisp_Object base; | |
5596 | { | |
7b4aedb9 | 5597 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5598 | |
80645119 | 5599 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 5600 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 5601 | |
0a7f1fc0 | 5602 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5603 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5604 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5605 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5606 | |
5607 | if (CONSP (entry)) | |
7539e11f | 5608 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5609 | else |
5610 | { | |
df0f2ba1 | 5611 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5612 | new_symbol = apply_modifiers_uncached (modifiers, |
5613 | XSYMBOL (base)->name->data, | |
301738ed | 5614 | XSYMBOL (base)->name->size, |
fc932ac6 | 5615 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5616 | |
5617 | /* Add the new symbol to the base's cache. */ | |
5618 | entry = Fcons (index, new_symbol); | |
5619 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5620 | ||
5621 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5622 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5623 | Fput (new_symbol, Qevent_symbol_element_mask, |
5624 | Fcons (base, Fcons (index, Qnil))); | |
5625 | Fput (new_symbol, Qevent_symbol_elements, | |
5626 | Fcons (base, lispy_modifier_list (modifiers))); | |
5627 | } | |
0a7f1fc0 | 5628 | |
df0f2ba1 | 5629 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5630 | |
5631 | You'd think we could just set this once and for all when we | |
5632 | intern the symbol above, but reorder_modifiers may call us when | |
5633 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5634 | because it has a Qmodifier_cache property it must have its |
5635 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5636 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5637 | { | |
9b8eb840 | 5638 | Lisp_Object kind; |
7b4aedb9 | 5639 | |
9b8eb840 | 5640 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5641 | if (! NILP (kind)) |
5642 | Fput (new_symbol, Qevent_kind, kind); | |
5643 | } | |
5644 | ||
5645 | return new_symbol; | |
0a7f1fc0 JB |
5646 | } |
5647 | ||
5648 | ||
5649 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5650 | return a symbol with the modifiers placed in the canonical order. | |
5651 | Canonical order is alphabetical, except for down and drag, which | |
5652 | always come last. The 'click' modifier is never written out. | |
5653 | ||
5654 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5655 | and M-C-foo end up being equivalent in the keymap. */ | |
5656 | ||
5657 | Lisp_Object | |
5658 | reorder_modifiers (symbol) | |
5659 | Lisp_Object symbol; | |
5660 | { | |
5661 | /* It's hopefully okay to write the code this way, since everything | |
5662 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5663 | Lisp_Object parsed; |
0a7f1fc0 | 5664 | |
9b8eb840 | 5665 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5666 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5667 | XCAR (parsed)); | |
0a7f1fc0 JB |
5668 | } |
5669 | ||
5670 | ||
284f4730 JB |
5671 | /* For handling events, we often want to produce a symbol whose name |
5672 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5673 | to some base, like the name of a function key or mouse button. | |
5674 | modify_event_symbol produces symbols of this sort. | |
5675 | ||
5676 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5677 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5678 | in the table. | |
5679 | ||
8e1e4240 GM |
5680 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
5681 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 5682 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
5683 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
5684 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 5685 | |
284f4730 JB |
5686 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5687 | persist between calls to modify_event_symbol that it can use to | |
5688 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5689 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5690 | |
5691 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5692 | |
284f4730 JB |
5693 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5694 | whose prefixes should be applied to the symbol name. | |
5695 | ||
5696 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5697 | the returned symbol. |
88cb0656 JB |
5698 | |
5699 | The symbols we create are supposed to have an | |
eb8c3be9 | 5700 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5701 | in the symbol's name. */ |
5702 | ||
284f4730 | 5703 | static Lisp_Object |
8e1e4240 | 5704 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 5705 | name_table, symbol_table, table_size) |
284f4730 JB |
5706 | int symbol_num; |
5707 | unsigned modifiers; | |
5708 | Lisp_Object symbol_kind; | |
8e1e4240 | 5709 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
5710 | char **name_table; |
5711 | Lisp_Object *symbol_table; | |
2c834fb3 | 5712 | unsigned int table_size; |
284f4730 | 5713 | { |
80e4aa30 RS |
5714 | Lisp_Object value; |
5715 | Lisp_Object symbol_int; | |
5716 | ||
2c834fb3 KH |
5717 | /* Get rid of the "vendor-specific" bit here. */ |
5718 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5719 | |
5720 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5721 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5722 | return Qnil; |
284f4730 | 5723 | |
80e4aa30 RS |
5724 | if (CONSP (*symbol_table)) |
5725 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5726 | ||
0a7f1fc0 | 5727 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5728 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5729 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5730 | we've never used that symbol before. */ | |
80e4aa30 | 5731 | else |
88cb0656 | 5732 | { |
80e4aa30 RS |
5733 | if (! VECTORP (*symbol_table) |
5734 | || XVECTOR (*symbol_table)->size != table_size) | |
5735 | { | |
5736 | Lisp_Object size; | |
0a7f1fc0 | 5737 | |
bb9e9bed | 5738 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5739 | *symbol_table = Fmake_vector (size, Qnil); |
5740 | } | |
284f4730 | 5741 | |
80e4aa30 RS |
5742 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5743 | } | |
284f4730 | 5744 | |
0a7f1fc0 | 5745 | /* Have we already used this symbol before? */ |
80e4aa30 | 5746 | if (NILP (value)) |
284f4730 | 5747 | { |
0a7f1fc0 | 5748 | /* No; let's create it. */ |
8e1e4240 GM |
5749 | if (CONSP (name_alist_or_stem)) |
5750 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
5751 | else if (STRINGP (name_alist_or_stem)) | |
5752 | { | |
5753 | int len = STRING_BYTES (XSTRING (name_alist_or_stem)); | |
5754 | char *buf = (char *) alloca (len + 50); | |
5755 | sprintf (buf, "%s-%d", XSTRING (name_alist_or_stem)->data, | |
5756 | XINT (symbol_int) + 1); | |
5757 | value = intern (buf); | |
5758 | } | |
2ff6714d | 5759 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5760 | value = intern (name_table[symbol_num]); |
b64b4075 | 5761 | |
e98a93eb | 5762 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5763 | if (NILP (value)) |
5764 | { | |
5765 | char *name = x_get_keysym_name (symbol_num); | |
5766 | if (name) | |
5767 | value = intern (name); | |
5768 | } | |
5769 | #endif | |
5770 | ||
b64b4075 | 5771 | if (NILP (value)) |
d1f50460 RS |
5772 | { |
5773 | char buf[20]; | |
5774 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5775 | value = intern (buf); |
d1f50460 | 5776 | } |
0a7f1fc0 | 5777 | |
80e4aa30 | 5778 | if (CONSP (*symbol_table)) |
4205cb08 | 5779 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5780 | else |
5781 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5782 | ||
df0f2ba1 | 5783 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5784 | builds the Qevent_symbol_elements property, which the user |
5785 | cares about. */ | |
80e4aa30 RS |
5786 | apply_modifiers (modifiers & click_modifier, value); |
5787 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5788 | } |
88cb0656 | 5789 | |
0a7f1fc0 | 5790 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5791 | return apply_modifiers (modifiers, value); |
284f4730 | 5792 | } |
6da3dd3a RS |
5793 | \f |
5794 | /* Convert a list that represents an event type, | |
5795 | such as (ctrl meta backspace), into the usual representation of that | |
5796 | event type as a number or a symbol. */ | |
5797 | ||
a1706c30 | 5798 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5799 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5800 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5801 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5802 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5803 | The return value is an event type (a character or symbol) which\n\ |
5804 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5805 | (event_desc) |
5806 | Lisp_Object event_desc; | |
6da3dd3a RS |
5807 | { |
5808 | Lisp_Object base; | |
5809 | int modifiers = 0; | |
5810 | Lisp_Object rest; | |
5811 | ||
5812 | base = Qnil; | |
e57d8fd8 | 5813 | rest = event_desc; |
6da3dd3a RS |
5814 | while (CONSP (rest)) |
5815 | { | |
5816 | Lisp_Object elt; | |
5817 | int this = 0; | |
5818 | ||
7539e11f KR |
5819 | elt = XCAR (rest); |
5820 | rest = XCDR (rest); | |
6da3dd3a | 5821 | |
3d31316f | 5822 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5823 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5824 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5825 | |
5826 | if (this != 0) | |
5827 | modifiers |= this; | |
5828 | else if (!NILP (base)) | |
5829 | error ("Two bases given in one event"); | |
5830 | else | |
5831 | base = elt; | |
5832 | ||
6da3dd3a RS |
5833 | } |
5834 | ||
3d31316f RS |
5835 | /* Let the symbol A refer to the character A. */ |
5836 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5837 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5838 | ||
6da3dd3a RS |
5839 | if (INTEGERP (base)) |
5840 | { | |
3d31316f RS |
5841 | /* Turn (shift a) into A. */ |
5842 | if ((modifiers & shift_modifier) != 0 | |
5843 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5844 | { | |
5845 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5846 | modifiers &= ~shift_modifier; | |
5847 | } | |
5848 | ||
5849 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5850 | if (modifiers & ctrl_modifier) |
3d31316f | 5851 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5852 | | make_ctrl_char (XINT (base))); |
5853 | else | |
5854 | return make_number (modifiers | XINT (base)); | |
5855 | } | |
5856 | else if (SYMBOLP (base)) | |
5857 | return apply_modifiers (modifiers, base); | |
5858 | else | |
8c907a56 GM |
5859 | { |
5860 | error ("Invalid base event"); | |
5861 | return Qnil; | |
5862 | } | |
6da3dd3a RS |
5863 | } |
5864 | ||
3d31316f RS |
5865 | /* Try to recognize SYMBOL as a modifier name. |
5866 | Return the modifier flag bit, or 0 if not recognized. */ | |
5867 | ||
5868 | static int | |
5869 | parse_solitary_modifier (symbol) | |
5870 | Lisp_Object symbol; | |
5871 | { | |
5872 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5873 | ||
5874 | switch (name->data[0]) | |
5875 | { | |
5876 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5877 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5878 | return BIT; |
5879 | ||
5880 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5881 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5882 | && ! strncmp (name->data, NAME, LEN)) \ |
5883 | return BIT; | |
5884 | ||
5885 | case 'A': | |
5886 | SINGLE_LETTER_MOD (alt_modifier); | |
5887 | break; | |
5888 | ||
5889 | case 'a': | |
5890 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5891 | break; | |
5892 | ||
5893 | case 'C': | |
5894 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5895 | break; | |
5896 | ||
5897 | case 'c': | |
5898 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5899 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5900 | break; | |
5901 | ||
5902 | case 'H': | |
5903 | SINGLE_LETTER_MOD (hyper_modifier); | |
5904 | break; | |
5905 | ||
5906 | case 'h': | |
5907 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5908 | break; | |
5909 | ||
5910 | case 'M': | |
5911 | SINGLE_LETTER_MOD (meta_modifier); | |
5912 | break; | |
5913 | ||
5914 | case 'm': | |
5915 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5916 | break; | |
5917 | ||
5918 | case 'S': | |
5919 | SINGLE_LETTER_MOD (shift_modifier); | |
5920 | break; | |
5921 | ||
5922 | case 's': | |
5923 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5924 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5925 | SINGLE_LETTER_MOD (super_modifier); | |
5926 | break; | |
5927 | ||
5928 | case 'd': | |
5929 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5930 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5931 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5932 | break; | |
5933 | ||
5934 | case 't': | |
5935 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5936 | break; | |
5937 | ||
5938 | #undef SINGLE_LETTER_MOD | |
5939 | #undef MULTI_LETTER_MOD | |
5940 | } | |
5941 | ||
5942 | return 0; | |
5943 | } | |
5944 | ||
6da3dd3a RS |
5945 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5946 | Such a list is not valid as an event, | |
5947 | but it can be a Lucid-style event type list. */ | |
5948 | ||
5949 | int | |
5950 | lucid_event_type_list_p (object) | |
5951 | Lisp_Object object; | |
5952 | { | |
5953 | Lisp_Object tail; | |
5954 | ||
5955 | if (! CONSP (object)) | |
5956 | return 0; | |
902ae620 GM |
5957 | |
5958 | if (EQ (XCAR (object), Qhelp_echo) | |
5959 | || EQ (XCAR (object), Qvertical_line) | |
5960 | || EQ (XCAR (object), Qmode_line) | |
5961 | || EQ (XCAR (object), Qheader_line)) | |
5962 | return 0; | |
6da3dd3a | 5963 | |
7539e11f | 5964 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
5965 | { |
5966 | Lisp_Object elt; | |
7539e11f | 5967 | elt = XCAR (tail); |
6da3dd3a RS |
5968 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
5969 | return 0; | |
5970 | } | |
5971 | ||
5972 | return NILP (tail); | |
5973 | } | |
284f4730 | 5974 | \f |
284f4730 JB |
5975 | /* Store into *addr a value nonzero if terminal input chars are available. |
5976 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5977 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5978 | (In fact, this may actually read some input.) |
5979 | ||
5980 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5981 | |
5982 | static void | |
d9d4c147 | 5983 | get_input_pending (addr, do_timers_now) |
284f4730 | 5984 | int *addr; |
d9d4c147 | 5985 | int do_timers_now; |
284f4730 JB |
5986 | { |
5987 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5988 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5989 | |
5990 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5991 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5992 | return; | |
5993 | ||
5994 | /* Try to read some input and see how much we get. */ | |
5995 | gobble_input (0); | |
d9d4c147 | 5996 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5997 | } |
5998 | ||
81931ba1 | 5999 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6000 | |
07a59269 | 6001 | void |
284f4730 JB |
6002 | gobble_input (expected) |
6003 | int expected; | |
6004 | { | |
6005 | #ifndef VMS | |
6006 | #ifdef SIGIO | |
6007 | if (interrupt_input) | |
6008 | { | |
32676c08 | 6009 | SIGMASKTYPE mask; |
4f8aaa74 | 6010 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6011 | read_avail_input (expected); |
e065a56e | 6012 | sigsetmask (mask); |
284f4730 JB |
6013 | } |
6014 | else | |
81931ba1 RS |
6015 | #ifdef POLL_FOR_INPUT |
6016 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6017 | { | |
6018 | SIGMASKTYPE mask; | |
4f8aaa74 | 6019 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6020 | read_avail_input (expected); |
6021 | sigsetmask (mask); | |
6022 | } | |
6023 | else | |
87485d6f | 6024 | #endif |
284f4730 JB |
6025 | #endif |
6026 | read_avail_input (expected); | |
6027 | #endif | |
6028 | } | |
a8015ab5 | 6029 | |
241ceaf7 RS |
6030 | /* Put a buffer_switch_event in the buffer |
6031 | so that read_key_sequence will notice the new current buffer. */ | |
6032 | ||
07a59269 | 6033 | void |
a8015ab5 KH |
6034 | record_asynch_buffer_change () |
6035 | { | |
6036 | struct input_event event; | |
a30f0615 RS |
6037 | Lisp_Object tem; |
6038 | ||
a8015ab5 KH |
6039 | event.kind = buffer_switch_event; |
6040 | event.frame_or_window = Qnil; | |
da8f7368 | 6041 | event.arg = Qnil; |
241ceaf7 | 6042 | |
f65e6f7d | 6043 | #ifdef subprocesses |
a30f0615 RS |
6044 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6045 | The purpose of the event is to make read_key_sequence look up the | |
6046 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6047 | and the event could cause trouble by messing up (input-pending-p). */ | |
6048 | tem = Fwaiting_for_user_input_p (); | |
6049 | if (NILP (tem)) | |
6050 | return; | |
f65e6f7d RS |
6051 | #else |
6052 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6053 | return; | |
6054 | #endif | |
a30f0615 | 6055 | |
241ceaf7 RS |
6056 | /* Make sure no interrupt happens while storing the event. */ |
6057 | #ifdef SIGIO | |
6058 | if (interrupt_input) | |
6059 | { | |
6060 | SIGMASKTYPE mask; | |
4f8aaa74 | 6061 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6062 | kbd_buffer_store_event (&event); |
6063 | sigsetmask (mask); | |
6064 | } | |
6065 | else | |
6066 | #endif | |
6067 | { | |
6068 | stop_polling (); | |
6069 | kbd_buffer_store_event (&event); | |
6070 | start_polling (); | |
6071 | } | |
a8015ab5 | 6072 | } |
284f4730 JB |
6073 | \f |
6074 | #ifndef VMS | |
6075 | ||
6076 | /* Read any terminal input already buffered up by the system | |
6077 | into the kbd_buffer, but do not wait. | |
6078 | ||
6079 | EXPECTED should be nonzero if the caller knows there is some input. | |
6080 | ||
6081 | Except on VMS, all input is read by this function. | |
6082 | If interrupt_input is nonzero, this function MUST be called | |
6083 | only when SIGIO is blocked. | |
6084 | ||
6085 | Returns the number of keyboard chars read, or -1 meaning | |
6086 | this is a bad time to try to read input. */ | |
6087 | ||
6088 | static int | |
6089 | read_avail_input (expected) | |
6090 | int expected; | |
6091 | { | |
6092 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6093 | register int i; | |
6094 | int nread; | |
6095 | ||
6096 | if (read_socket_hook) | |
6097 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6098 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6099 | else |
6100 | { | |
17270835 RS |
6101 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6102 | the kbd_buffer can really hold. That may prevent loss | |
6103 | of characters on some systems when input is stuffed at us. */ | |
6104 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6105 | int n_to_read; |
284f4730 | 6106 | |
58788063 | 6107 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6108 | #ifdef WINDOWSNT |
6109 | return 0; | |
6110 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6111 | #ifdef MSDOS |
58788063 RS |
6112 | n_to_read = dos_keysns (); |
6113 | if (n_to_read == 0) | |
6114 | return 0; | |
c3a2738c | 6115 | #else /* not MSDOS */ |
284f4730 JB |
6116 | #ifdef FIONREAD |
6117 | /* Find out how much input is available. */ | |
437f6112 | 6118 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6119 | /* Formerly simply reported no input, but that sometimes led to |
6120 | a failure of Emacs to terminate. | |
6121 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6122 | /* ??? Is it really right to send the signal just to this process |
6123 | rather than to the whole process group? | |
6124 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 6125 | kill (getpid (), SIGHUP); |
58788063 | 6126 | if (n_to_read == 0) |
284f4730 | 6127 | return 0; |
58788063 RS |
6128 | if (n_to_read > sizeof cbuf) |
6129 | n_to_read = sizeof cbuf; | |
284f4730 | 6130 | #else /* no FIONREAD */ |
0c04a67e | 6131 | #if defined (USG) || defined (DGUX) |
284f4730 | 6132 | /* Read some input if available, but don't wait. */ |
58788063 | 6133 | n_to_read = sizeof cbuf; |
437f6112 | 6134 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6135 | #else |
6136 | you lose; | |
6137 | #endif | |
6138 | #endif | |
80e4aa30 | 6139 | #endif /* not MSDOS */ |
bc536d84 | 6140 | #endif /* not WINDOWSNT */ |
284f4730 | 6141 | |
58788063 RS |
6142 | /* Now read; for one reason or another, this will not block. |
6143 | NREAD is set to the number of chars read. */ | |
9134775b | 6144 | do |
284f4730 | 6145 | { |
80e4aa30 | 6146 | #ifdef MSDOS |
0c04a67e | 6147 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6148 | nread = 1; |
6149 | #else | |
68c45bf0 | 6150 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6151 | #endif |
49854566 RS |
6152 | /* POSIX infers that processes which are not in the session leader's |
6153 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6154 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6155 | when the control tty is taken away. |
6156 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6157 | if (nread == -1 && errno == EIO) | |
6158 | kill (0, SIGHUP); | |
762f2b92 | 6159 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6160 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6161 | This looks incorrect, but it isn't, because _BSD causes | |
6162 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6163 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6164 | if (nread == 0) |
80e4aa30 | 6165 | kill (0, SIGHUP); |
284f4730 | 6166 | #endif |
9134775b | 6167 | } |
791587ee KH |
6168 | while ( |
6169 | /* We used to retry the read if it was interrupted. | |
6170 | But this does the wrong thing when O_NDELAY causes | |
6171 | an EAGAIN error. Does anybody know of a situation | |
6172 | where a retry is actually needed? */ | |
6173 | #if 0 | |
6174 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6175 | #ifdef EFAULT |
9134775b | 6176 | || errno == EFAULT |
80e4aa30 | 6177 | #endif |
284f4730 | 6178 | #ifdef EBADSLT |
9134775b | 6179 | || errno == EBADSLT |
284f4730 | 6180 | #endif |
791587ee KH |
6181 | ) |
6182 | #else | |
6183 | 0 | |
6184 | #endif | |
6185 | ); | |
284f4730 JB |
6186 | |
6187 | #ifndef FIONREAD | |
02c2c53f | 6188 | #if defined (USG) || defined (DGUX) |
437f6112 | 6189 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 6190 | #endif /* USG or DGUX */ |
284f4730 JB |
6191 | #endif /* no FIONREAD */ |
6192 | for (i = 0; i < nread; i++) | |
6193 | { | |
6194 | buf[i].kind = ascii_keystroke; | |
86e5706b | 6195 | buf[i].modifiers = 0; |
b04904fb | 6196 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6197 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6198 | if (meta_key != 2) |
6199 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6200 | |
6201 | buf[i].code = cbuf[i]; | |
788f89eb | 6202 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6203 | buf[i].arg = Qnil; |
284f4730 JB |
6204 | } |
6205 | } | |
6206 | ||
6207 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6208 | for (i = 0; i < nread; i++) | |
6209 | { | |
6210 | kbd_buffer_store_event (&buf[i]); | |
6211 | /* Don't look at input that follows a C-g too closely. | |
6212 | This reduces lossage due to autorepeat on C-g. */ | |
6213 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 6214 | && buf[i].code == quit_char) |
284f4730 JB |
6215 | break; |
6216 | } | |
6217 | ||
6218 | return nread; | |
6219 | } | |
6220 | #endif /* not VMS */ | |
6221 | \f | |
6222 | #ifdef SIGIO /* for entire page */ | |
6223 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6224 | ||
2ce30ea2 | 6225 | SIGTYPE |
284f4730 JB |
6226 | input_available_signal (signo) |
6227 | int signo; | |
6228 | { | |
6229 | /* Must preserve main program's value of errno. */ | |
6230 | int old_errno = errno; | |
6231 | #ifdef BSD4_1 | |
6232 | extern int select_alarmed; | |
6233 | #endif | |
6234 | ||
5970a8cb | 6235 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6236 | /* USG systems forget handlers when they are used; |
6237 | must reestablish each time */ | |
6238 | signal (signo, input_available_signal); | |
6239 | #endif /* USG */ | |
6240 | ||
6241 | #ifdef BSD4_1 | |
6242 | sigisheld (SIGIO); | |
6243 | #endif | |
6244 | ||
ffd56f97 JB |
6245 | if (input_available_clear_time) |
6246 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6247 | |
6248 | while (1) | |
6249 | { | |
6250 | int nread; | |
6251 | nread = read_avail_input (1); | |
6252 | /* -1 means it's not ok to read the input now. | |
6253 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6254 | 0 means there was no keyboard input available. */ | |
6255 | if (nread <= 0) | |
6256 | break; | |
6257 | ||
6258 | #ifdef BSD4_1 | |
6259 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6260 | #endif | |
6261 | } | |
6262 | ||
6263 | #ifdef BSD4_1 | |
6264 | sigfree (); | |
6265 | #endif | |
6266 | errno = old_errno; | |
6267 | } | |
6268 | #endif /* SIGIO */ | |
ad163903 JB |
6269 | |
6270 | /* Send ourselves a SIGIO. | |
6271 | ||
6272 | This function exists so that the UNBLOCK_INPUT macro in | |
6273 | blockinput.h can have some way to take care of input we put off | |
6274 | dealing with, without assuming that every file which uses | |
6275 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6276 | void | |
6277 | reinvoke_input_signal () | |
6278 | { | |
df0f2ba1 | 6279 | #ifdef SIGIO |
87dd9b9b | 6280 | kill (getpid (), SIGIO); |
ad163903 JB |
6281 | #endif |
6282 | } | |
6283 | ||
6284 | ||
284f4730 JB |
6285 | \f |
6286 | /* Return the prompt-string of a sparse keymap. | |
6287 | This is the first element which is a string. | |
6288 | Return nil if there is none. */ | |
6289 | ||
6290 | Lisp_Object | |
6291 | map_prompt (map) | |
6292 | Lisp_Object map; | |
6293 | { | |
6294 | while (CONSP (map)) | |
6295 | { | |
6296 | register Lisp_Object tem; | |
6297 | tem = Fcar (map); | |
8c18cbfb | 6298 | if (STRINGP (tem)) |
284f4730 JB |
6299 | return tem; |
6300 | map = Fcdr (map); | |
6301 | } | |
6302 | return Qnil; | |
6303 | } | |
6304 | ||
25126faa GM |
6305 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object)); |
6306 | static void menu_bar_one_keymap P_ ((Lisp_Object)); | |
b7c49376 RS |
6307 | |
6308 | /* These variables hold the vector under construction within | |
6309 | menu_bar_items and its subroutines, and the current index | |
6310 | for storing into that vector. */ | |
6311 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6312 | static int menu_bar_items_index; |
5ec75a55 | 6313 | |
b7c49376 RS |
6314 | /* Return a vector of menu items for a menu bar, appropriate |
6315 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6316 | KEY STRING MAPLIST. |
b7c49376 RS |
6317 | |
6318 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6319 | |
6320 | Lisp_Object | |
b7c49376 RS |
6321 | menu_bar_items (old) |
6322 | Lisp_Object old; | |
5ec75a55 RS |
6323 | { |
6324 | /* The number of keymaps we're scanning right now, and the number of | |
6325 | keymaps we have allocated space for. */ | |
6326 | int nmaps; | |
6327 | ||
6328 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6329 | in the current keymaps, or nil where it is not a prefix. */ | |
6330 | Lisp_Object *maps; | |
6331 | ||
aebfea68 | 6332 | Lisp_Object def, tail; |
5ec75a55 RS |
6333 | |
6334 | Lisp_Object result; | |
6335 | ||
6336 | int mapno; | |
47d319aa | 6337 | Lisp_Object oquit; |
5ec75a55 | 6338 | |
b7c49376 RS |
6339 | int i; |
6340 | ||
6341 | struct gcpro gcpro1; | |
6342 | ||
db60d856 JB |
6343 | /* In order to build the menus, we need to call the keymap |
6344 | accessors. They all call QUIT. But this function is called | |
6345 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6346 | quitting while building the menus. |
6347 | We do this instead of specbind because (1) errors will clear it anyway | |
6348 | and (2) this avoids risk of specpdl overflow. */ | |
6349 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6350 | Vinhibit_quit = Qt; |
db60d856 | 6351 | |
b7c49376 RS |
6352 | if (!NILP (old)) |
6353 | menu_bar_items_vector = old; | |
6354 | else | |
6355 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6356 | menu_bar_items_index = 0; | |
6357 | ||
6358 | GCPRO1 (menu_bar_items_vector); | |
6359 | ||
5ec75a55 RS |
6360 | /* Build our list of keymaps. |
6361 | If we recognize a function key and replace its escape sequence in | |
6362 | keybuf with its symbol, or if the sequence starts with a mouse | |
6363 | click and we need to switch buffers, we jump back here to rebuild | |
6364 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6365 | { |
5ec75a55 RS |
6366 | Lisp_Object *tmaps; |
6367 | ||
217258d5 | 6368 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6369 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6370 | { |
217258d5 KH |
6371 | /* Yes, use them (if non-nil) as well as the global map. */ |
6372 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6373 | nmaps = 0; | |
6374 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6375 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6376 | if (!NILP (Voverriding_local_map)) | |
6377 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6378 | } |
6379 | else | |
6380 | { | |
30690496 DL |
6381 | /* No, so use major and minor mode keymaps and keymap property. */ |
6382 | int extra_maps = 2; | |
24a40fbb | 6383 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
6384 | if (!NILP (map)) |
6385 | extra_maps = 3; | |
217258d5 | 6386 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
6387 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
6388 | * sizeof (maps[0])); | |
217258d5 | 6389 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 6390 | if (!NILP (map)) |
9f83cf0b | 6391 | maps[nmaps++] = map; |
24a40fbb | 6392 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
9dd3131c | 6393 | } |
217258d5 | 6394 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6395 | } |
6396 | ||
6397 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6398 | ||
6399 | result = Qnil; | |
6400 | ||
e58aa385 | 6401 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6402 | if (!NILP (maps[mapno])) |
6403 | { | |
341a09cf SM |
6404 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6405 | 0, 1); | |
02067692 | 6406 | if (CONSP (def)) |
25126faa GM |
6407 | menu_bar_one_keymap (def); |
6408 | } | |
5ec75a55 | 6409 | |
b7c49376 RS |
6410 | /* Move to the end those items that should be at the end. */ |
6411 | ||
7539e11f | 6412 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6413 | { |
b7c49376 RS |
6414 | int i; |
6415 | int end = menu_bar_items_index; | |
6416 | ||
35b3402f | 6417 | for (i = 0; i < end; i += 4) |
7539e11f | 6418 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6419 | { |
35b3402f | 6420 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6421 | /* Move the item at index I to the end, |
6422 | shifting all the others forward. */ | |
6423 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6424 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6425 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6426 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6427 | if (end > i + 4) | |
6428 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6429 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6430 | (end - i - 4) * sizeof (Lisp_Object)); |
6431 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6432 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6433 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6434 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6435 | break; |
b7c49376 RS |
6436 | } |
6437 | } | |
9f9c0e27 | 6438 | |
0c9071cd | 6439 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6440 | i = menu_bar_items_index; |
35b3402f | 6441 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6442 | { |
6443 | Lisp_Object tem; | |
b7c49376 RS |
6444 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6445 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6446 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6447 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6448 | } |
b7c49376 RS |
6449 | /* Add this item. */ |
6450 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6451 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6452 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6453 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6454 | menu_bar_items_index = i; |
a73c5e29 | 6455 | |
47d319aa | 6456 | Vinhibit_quit = oquit; |
b7c49376 RS |
6457 | UNGCPRO; |
6458 | return menu_bar_items_vector; | |
5ec75a55 RS |
6459 | } |
6460 | \f | |
6461 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 6462 | in menu_bar_items_vector. */ |
5ec75a55 | 6463 | |
759860a6 RS |
6464 | static Lisp_Object menu_bar_one_keymap_changed_items; |
6465 | ||
b7c49376 RS |
6466 | static void |
6467 | menu_bar_one_keymap (keymap) | |
6468 | Lisp_Object keymap; | |
5ec75a55 | 6469 | { |
03cee6ae | 6470 | Lisp_Object tail, item; |
5ec75a55 | 6471 | |
759860a6 RS |
6472 | menu_bar_one_keymap_changed_items = Qnil; |
6473 | ||
5ec75a55 | 6474 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 6475 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 6476 | { |
7539e11f | 6477 | item = XCAR (tail); |
8c18cbfb | 6478 | if (CONSP (item)) |
7539e11f | 6479 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 6480 | else if (VECTORP (item)) |
5ec75a55 RS |
6481 | { |
6482 | /* Loop over the char values represented in the vector. */ | |
6483 | int len = XVECTOR (item)->size; | |
6484 | int c; | |
6485 | for (c = 0; c < len; c++) | |
6486 | { | |
6487 | Lisp_Object character; | |
bb9e9bed | 6488 | XSETFASTINT (character, c); |
e8886a1d | 6489 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
6490 | } |
6491 | } | |
6492 | } | |
5ec75a55 RS |
6493 | } |
6494 | ||
f5e09c8b RS |
6495 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6496 | If there's already an item for KEY, add this DEF to it. */ | |
6497 | ||
e8886a1d RS |
6498 | Lisp_Object item_properties; |
6499 | ||
b7c49376 | 6500 | static void |
e8886a1d RS |
6501 | menu_bar_item (key, item) |
6502 | Lisp_Object key, item; | |
5ec75a55 | 6503 | { |
e8886a1d | 6504 | struct gcpro gcpro1; |
b7c49376 | 6505 | int i; |
759860a6 | 6506 | Lisp_Object tem; |
5ec75a55 | 6507 | |
e8886a1d | 6508 | if (EQ (item, Qundefined)) |
e58aa385 | 6509 | { |
f5e09c8b | 6510 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6511 | discard any previously made menu bar item. */ |
b7c49376 | 6512 | |
35b3402f | 6513 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6514 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6515 | { | |
35b3402f RS |
6516 | if (menu_bar_items_index > i + 4) |
6517 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6518 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6519 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6520 | menu_bar_items_index -= 4; | |
b7c49376 | 6521 | } |
e58aa385 RS |
6522 | } |
6523 | ||
759860a6 RS |
6524 | /* If this keymap has already contributed to this KEY, |
6525 | don't contribute to it a second time. */ | |
6526 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6527 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6528 | return; |
6529 | ||
6530 | menu_bar_one_keymap_changed_items | |
6531 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6532 | ||
9cd2ced7 SM |
6533 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6534 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6535 | it still correctly hides any further menu item. */ | |
6536 | GCPRO1 (key); | |
6537 | i = parse_menu_item (item, 0, 1); | |
6538 | UNGCPRO; | |
6539 | if (!i) | |
6540 | return; | |
6541 | ||
e8886a1d RS |
6542 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6543 | ||
f5e09c8b | 6544 | /* Find any existing item for this KEY. */ |
35b3402f | 6545 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6546 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6547 | break; | |
6548 | ||
f5e09c8b | 6549 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6550 | if (i == menu_bar_items_index) |
6551 | { | |
6552 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6553 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6554 | { |
6555 | Lisp_Object tem; | |
b7c49376 RS |
6556 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6557 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6558 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6559 | menu_bar_items_vector = tem; | |
6560 | } | |
e8886a1d | 6561 | |
b7c49376 RS |
6562 | /* Add this item. */ |
6563 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6564 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6565 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6566 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6567 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6568 | menu_bar_items_index = i; |
6569 | } | |
e8886a1d | 6570 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6571 | else |
6572 | { | |
6573 | Lisp_Object old; | |
6574 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6575 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6576 | } |
5ec75a55 RS |
6577 | } |
6578 | \f | |
e8886a1d RS |
6579 | /* This is used as the handler when calling menu_item_eval_property. */ |
6580 | static Lisp_Object | |
6581 | menu_item_eval_property_1 (arg) | |
6582 | Lisp_Object arg; | |
6583 | { | |
6584 | /* If we got a quit from within the menu computation, | |
6585 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6586 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6587 | Fsignal (Qquit, Qnil); |
6588 | ||
6589 | return Qnil; | |
6590 | } | |
6591 | ||
6592 | /* Evaluate an expression and return the result (or nil if something | |
6593 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6594 | Lisp_Object |
e8886a1d RS |
6595 | menu_item_eval_property (sexpr) |
6596 | Lisp_Object sexpr; | |
6597 | { | |
44e553a3 | 6598 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6599 | Lisp_Object val; |
44e553a3 | 6600 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6601 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6602 | menu_item_eval_property_1); | |
44e553a3 | 6603 | return unbind_to (count, val); |
e8886a1d RS |
6604 | } |
6605 | ||
6606 | /* This function parses a menu item and leaves the result in the | |
6607 | vector item_properties. | |
6608 | ITEM is a key binding, a possible menu item. | |
6609 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6610 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6611 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6612 | top level. |
fd3613d7 | 6613 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6614 | parse_menu_item returns true if the item is a menu item and false |
6615 | otherwise. */ | |
6616 | ||
6617 | int | |
6618 | parse_menu_item (item, notreal, inmenubar) | |
6619 | Lisp_Object item; | |
6620 | int notreal, inmenubar; | |
6621 | { | |
adc1d5c8 | 6622 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6623 | Lisp_Object cachelist; |
6624 | Lisp_Object filter; | |
6625 | Lisp_Object keyhint; | |
e8886a1d | 6626 | int i; |
74c1de23 RS |
6627 | int newcache = 0; |
6628 | ||
07ba902e RS |
6629 | cachelist = Qnil; |
6630 | filter = Qnil; | |
6631 | keyhint = Qnil; | |
6632 | ||
e8886a1d RS |
6633 | if (!CONSP (item)) |
6634 | return 0; | |
6635 | ||
e8886a1d RS |
6636 | /* Create item_properties vector if necessary. */ |
6637 | if (NILP (item_properties)) | |
6638 | item_properties | |
6639 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6640 | ||
6641 | /* Initialize optional entries. */ | |
6642 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
6643 | AREF (item_properties, i) = Qnil; |
6644 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
e8886a1d RS |
6645 | |
6646 | /* Save the item here to protect it from GC. */ | |
3626fb1a | 6647 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 6648 | |
7539e11f | 6649 | item_string = XCAR (item); |
e8886a1d RS |
6650 | |
6651 | start = item; | |
7539e11f | 6652 | item = XCDR (item); |
e8886a1d RS |
6653 | if (STRINGP (item_string)) |
6654 | { | |
6655 | /* Old format menu item. */ | |
3626fb1a | 6656 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6657 | |
6658 | /* Maybe help string. */ | |
7539e11f | 6659 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 6660 | { |
3626fb1a | 6661 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6662 | start = item; |
7539e11f | 6663 | item = XCDR (item); |
e8886a1d RS |
6664 | } |
6665 | ||
31f84d03 | 6666 | /* Maybe key binding cache. */ |
7539e11f KR |
6667 | if (CONSP (item) && CONSP (XCAR (item)) |
6668 | && (NILP (XCAR (XCAR (item))) | |
6669 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6670 | { |
7539e11f KR |
6671 | cachelist = XCAR (item); |
6672 | item = XCDR (item); | |
e8886a1d RS |
6673 | } |
6674 | ||
6675 | /* This is the real definition--the function to run. */ | |
3626fb1a | 6676 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
6677 | |
6678 | /* Get enable property, if any. */ | |
6679 | if (SYMBOLP (item)) | |
6680 | { | |
6681 | tem = Fget (item, Qmenu_enable); | |
6682 | if (!NILP (tem)) | |
3626fb1a | 6683 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6684 | } |
6685 | } | |
6686 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6687 | { | |
6688 | /* New format menu item. */ | |
3626fb1a | 6689 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 6690 | start = XCDR (item); |
e8886a1d RS |
6691 | if (CONSP (start)) |
6692 | { | |
6693 | /* We have a real binding. */ | |
3626fb1a | 6694 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 6695 | |
7539e11f | 6696 | item = XCDR (start); |
e8886a1d | 6697 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6698 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6699 | { |
7539e11f KR |
6700 | cachelist = XCAR (item); |
6701 | item = XCDR (item); | |
e8886a1d RS |
6702 | } |
6703 | ||
6704 | /* Parse properties. */ | |
7539e11f | 6705 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6706 | { |
7539e11f KR |
6707 | tem = XCAR (item); |
6708 | item = XCDR (item); | |
e8886a1d RS |
6709 | |
6710 | if (EQ (tem, QCenable)) | |
3626fb1a | 6711 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
6712 | else if (EQ (tem, QCvisible) && !notreal) |
6713 | { | |
6714 | /* If got a visible property and that evaluates to nil | |
6715 | then ignore this item. */ | |
7539e11f | 6716 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6717 | if (NILP (tem)) |
adc1d5c8 | 6718 | return 0; |
e8886a1d RS |
6719 | } |
6720 | else if (EQ (tem, QChelp)) | |
3626fb1a | 6721 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6722 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6723 | filter = item; |
6724 | else if (EQ (tem, QCkey_sequence)) | |
6725 | { | |
7539e11f | 6726 | tem = XCAR (item); |
74c1de23 RS |
6727 | if (NILP (cachelist) |
6728 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6729 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6730 | keyhint = item; | |
6731 | } | |
6732 | else if (EQ (tem, QCkeys)) | |
6733 | { | |
7539e11f | 6734 | tem = XCAR (item); |
03cee6ae | 6735 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 6736 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 6737 | } |
7539e11f | 6738 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6739 | { |
74c1de23 | 6740 | Lisp_Object type; |
7539e11f KR |
6741 | tem = XCAR (item); |
6742 | type = XCAR (tem); | |
e8886a1d RS |
6743 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6744 | { | |
3626fb1a | 6745 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 6746 | = XCDR (tem); |
3626fb1a | 6747 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
6748 | = type; |
6749 | } | |
6750 | } | |
7539e11f | 6751 | item = XCDR (item); |
e8886a1d RS |
6752 | } |
6753 | } | |
6754 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6755 | return 0; |
e8886a1d RS |
6756 | } |
6757 | else | |
adc1d5c8 | 6758 | return 0; /* not a menu item */ |
e8886a1d RS |
6759 | |
6760 | /* If item string is not a string, evaluate it to get string. | |
6761 | If we don't get a string, skip this item. */ | |
3626fb1a | 6762 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
6763 | if (!(STRINGP (item_string) || notreal)) |
6764 | { | |
6765 | item_string = menu_item_eval_property (item_string); | |
6766 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6767 | return 0; |
3626fb1a | 6768 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6769 | } |
6770 | ||
6771 | /* If got a filter apply it on definition. */ | |
3626fb1a | 6772 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
6773 | if (!NILP (filter)) |
6774 | { | |
7539e11f | 6775 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6776 | list2 (Qquote, def))); |
6777 | ||
3626fb1a | 6778 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
6779 | } |
6780 | ||
6781 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6782 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6783 | if (NILP (def)) |
adc1d5c8 | 6784 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6785 | |
6786 | /* Enable or disable selection of item. */ | |
3626fb1a | 6787 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
6788 | if (!EQ (tem, Qt)) |
6789 | { | |
6790 | if (notreal) | |
6791 | tem = Qt; | |
6792 | else | |
6793 | tem = menu_item_eval_property (tem); | |
6794 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6795 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 6796 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6797 | } |
6798 | ||
6799 | /* See if this is a separate pane or a submenu. */ | |
3626fb1a | 6800 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 6801 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 6802 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 6803 | if (CONSP (tem)) |
e8886a1d | 6804 | { |
3626fb1a GM |
6805 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
6806 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
6807 | return 1; |
6808 | } | |
3626fb1a | 6809 | |
9ac425d1 RS |
6810 | /* At the top level in the menu bar, do likewise for commands also. |
6811 | The menu bar does not display equivalent key bindings anyway. | |
6812 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6813 | if (inmenubar > 0) | |
6814 | return 1; | |
e8886a1d RS |
6815 | |
6816 | /* This is a command. See if there is an equivalent key binding. */ | |
6817 | if (NILP (cachelist)) | |
6818 | { | |
74c1de23 | 6819 | /* We have to create a cachelist. */ |
e8886a1d | 6820 | CHECK_IMPURE (start); |
7539e11f KR |
6821 | XCDR (start) = Fcons (Fcons (Qnil, Qnil), XCDR (start)); |
6822 | cachelist = XCAR (XCDR (start)); | |
74c1de23 | 6823 | newcache = 1; |
3626fb1a | 6824 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6825 | if (!NILP (keyhint)) |
6826 | { | |
7539e11f | 6827 | XCAR (cachelist) = XCAR (keyhint); |
74c1de23 RS |
6828 | newcache = 0; |
6829 | } | |
6830 | else if (STRINGP (tem)) | |
6831 | { | |
7539e11f KR |
6832 | XCDR (cachelist) = Fsubstitute_command_keys (tem); |
6833 | XCAR (cachelist) = Qt; | |
74c1de23 RS |
6834 | } |
6835 | } | |
3626fb1a | 6836 | |
7539e11f | 6837 | tem = XCAR (cachelist); |
74c1de23 RS |
6838 | if (!EQ (tem, Qt)) |
6839 | { | |
6840 | int chkcache = 0; | |
6841 | Lisp_Object prefix; | |
6842 | ||
6843 | if (!NILP (tem)) | |
6844 | tem = Fkey_binding (tem, Qnil); | |
6845 | ||
3626fb1a | 6846 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6847 | if (CONSP (prefix)) |
6848 | { | |
7539e11f KR |
6849 | def = XCAR (prefix); |
6850 | prefix = XCDR (prefix); | |
74c1de23 | 6851 | } |
e8886a1d | 6852 | else |
3626fb1a | 6853 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 6854 | |
3626fb1a GM |
6855 | if (!update_menu_bindings) |
6856 | chkcache = 0; | |
6857 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
6858 | { |
6859 | if (newcache /* Always check first time. */ | |
6860 | /* Should we check everything when precomputing key | |
6861 | bindings? */ | |
74c1de23 RS |
6862 | /* If something had no key binding before, don't recheck it |
6863 | because that is too slow--except if we have a list of | |
6864 | rebound commands in Vdefine_key_rebound_commands, do | |
6865 | recheck any command that appears in that list. */ | |
6866 | || (CONSP (Vdefine_key_rebound_commands) | |
6867 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6868 | chkcache = 1; | |
6869 | } | |
6870 | /* We had a saved key. Is it still bound to the command? */ | |
6871 | else if (NILP (tem) | |
03cee6ae GM |
6872 | || (!EQ (tem, def) |
6873 | /* If the command is an alias for another | |
6874 | (such as lmenu.el set it up), check if the | |
6875 | original command matches the cached command. */ | |
6876 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
6877 | chkcache = 1; /* Need to recompute key binding. */ |
6878 | ||
6879 | if (chkcache) | |
6880 | { | |
6881 | /* Recompute equivalent key binding. If the command is an alias | |
6882 | for another (such as lmenu.el set it up), see if the original | |
6883 | command name has equivalent keys. Otherwise look up the | |
6884 | specified command itself. We don't try both, because that | |
6885 | makes lmenu menus slow. */ | |
3626fb1a GM |
6886 | if (SYMBOLP (def) |
6887 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
6888 | && ! NILP (Fget (def, Qmenu_alias))) |
6889 | def = XSYMBOL (def)->function; | |
6890 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
7539e11f | 6891 | XCAR (cachelist) = tem; |
74c1de23 RS |
6892 | if (NILP (tem)) |
6893 | { | |
7539e11f | 6894 | XCDR (cachelist) = Qnil; |
74c1de23 RS |
6895 | chkcache = 0; |
6896 | } | |
6897 | } | |
7539e11f | 6898 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 6899 | { |
7539e11f | 6900 | tem = XCAR (cachelist); |
74c1de23 RS |
6901 | chkcache = 1; |
6902 | } | |
6903 | ||
6904 | newcache = chkcache; | |
6905 | if (chkcache) | |
6906 | { | |
6907 | tem = Fkey_description (tem); | |
6908 | if (CONSP (prefix)) | |
6909 | { | |
7539e11f KR |
6910 | if (STRINGP (XCAR (prefix))) |
6911 | tem = concat2 (XCAR (prefix), tem); | |
6912 | if (STRINGP (XCDR (prefix))) | |
6913 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 6914 | } |
7539e11f | 6915 | XCDR (cachelist) = tem; |
74c1de23 RS |
6916 | } |
6917 | } | |
6918 | ||
7539e11f | 6919 | tem = XCDR (cachelist); |
74c1de23 | 6920 | if (newcache && !NILP (tem)) |
e8886a1d | 6921 | { |
74c1de23 | 6922 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
7539e11f | 6923 | XCDR (cachelist) = tem; |
e8886a1d RS |
6924 | } |
6925 | ||
6926 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6927 | if (notreal) | |
adc1d5c8 | 6928 | return 1; |
e8886a1d RS |
6929 | |
6930 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 6931 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
6932 | |
6933 | /* Include this when menu help is implemented. | |
6934 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6935 | if (!(NILP (tem) || STRINGP (tem))) | |
6936 | { | |
6937 | tem = menu_item_eval_property (tem); | |
6938 | if (!STRINGP (tem)) | |
6939 | tem = Qnil; | |
6940 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6941 | } | |
e8886a1d RS |
6942 | */ |
6943 | ||
6944 | /* Handle radio buttons or toggle boxes. */ | |
3626fb1a | 6945 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 6946 | if (!NILP (tem)) |
3626fb1a | 6947 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
6948 | = menu_item_eval_property (tem); |
6949 | ||
e8886a1d RS |
6950 | return 1; |
6951 | } | |
7ee32cda GM |
6952 | |
6953 | ||
6954 | \f | |
6955 | /*********************************************************************** | |
6956 | Tool-bars | |
6957 | ***********************************************************************/ | |
6958 | ||
9ea173e8 GM |
6959 | /* A vector holding tool bar items while they are parsed in function |
6960 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
6961 | in the vector. */ | |
7ee32cda | 6962 | |
9ea173e8 | 6963 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 6964 | |
9ea173e8 GM |
6965 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
6966 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 6967 | |
9ea173e8 | 6968 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 6969 | |
9ea173e8 | 6970 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 6971 | |
9ea173e8 | 6972 | static int ntool_bar_items; |
7ee32cda | 6973 | |
9ea173e8 | 6974 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 6975 | |
9ea173e8 | 6976 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
6977 | Lisp_Object QCimage; |
6978 | ||
6979 | /* Function prototypes. */ | |
6980 | ||
9ea173e8 GM |
6981 | static void init_tool_bar_items P_ ((Lisp_Object)); |
6982 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6983 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6984 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
6985 | |
6986 | ||
9ea173e8 | 6987 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 6988 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 6989 | tool bar items found. */ |
7ee32cda GM |
6990 | |
6991 | Lisp_Object | |
9ea173e8 | 6992 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
6993 | Lisp_Object reuse; |
6994 | int *nitems; | |
6995 | { | |
6996 | Lisp_Object *maps; | |
6997 | int nmaps, i; | |
6998 | Lisp_Object oquit; | |
6999 | Lisp_Object *tmaps; | |
7000 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
7001 | extern Lisp_Object Voverriding_local_map; | |
7002 | ||
7003 | *nitems = 0; | |
7004 | ||
7005 | /* In order to build the menus, we need to call the keymap | |
7006 | accessors. They all call QUIT. But this function is called | |
7007 | during redisplay, during which a quit is fatal. So inhibit | |
7008 | quitting while building the menus. We do this instead of | |
7009 | specbind because (1) errors will clear it anyway and (2) this | |
7010 | avoids risk of specpdl overflow. */ | |
7011 | oquit = Vinhibit_quit; | |
7012 | Vinhibit_quit = Qt; | |
7013 | ||
9ea173e8 GM |
7014 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7015 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7016 | |
7017 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7018 | to process. */ | |
7019 | ||
7020 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7021 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7022 | { | |
7023 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7024 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7025 | nmaps = 0; | |
7026 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7027 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7028 | if (!NILP (Voverriding_local_map)) | |
7029 | maps[nmaps++] = Voverriding_local_map; | |
7030 | } | |
7031 | else | |
7032 | { | |
30690496 DL |
7033 | /* No, so use major and minor mode keymaps and keymap property. */ |
7034 | int extra_maps = 2; | |
24a40fbb | 7035 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
7036 | if (!NILP (map)) |
7037 | extra_maps = 3; | |
7ee32cda | 7038 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
7039 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
7040 | * sizeof (maps[0])); | |
7ee32cda | 7041 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 7042 | if (!NILP (map)) |
9f83cf0b | 7043 | maps[nmaps++] = map; |
24a40fbb | 7044 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
7ee32cda GM |
7045 | } |
7046 | ||
7047 | /* Add global keymap at the end. */ | |
7048 | maps[nmaps++] = current_global_map; | |
7049 | ||
7050 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7051 | key `tool-bar'. */ |
7ee32cda GM |
7052 | for (i = nmaps - 1; i >= 0; --i) |
7053 | if (!NILP (maps[i])) | |
7054 | { | |
7055 | Lisp_Object keymap; | |
db785038 | 7056 | |
341a09cf | 7057 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7058 | if (CONSP (keymap)) |
7ee32cda GM |
7059 | { |
7060 | Lisp_Object tail; | |
7061 | ||
7062 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 7063 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7064 | { |
7065 | Lisp_Object keydef = XCAR (tail); | |
7066 | if (CONSP (keydef)) | |
9ea173e8 | 7067 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7068 | } |
7069 | } | |
7070 | } | |
7071 | ||
7072 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7073 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7074 | return tool_bar_items_vector; | |
7ee32cda GM |
7075 | } |
7076 | ||
7077 | ||
7078 | /* Process the definition of KEY which is DEF. */ | |
7079 | ||
7080 | static void | |
9ea173e8 | 7081 | process_tool_bar_item (key, def) |
7ee32cda GM |
7082 | Lisp_Object key, def; |
7083 | { | |
7084 | int i; | |
7085 | extern Lisp_Object Qundefined; | |
7086 | struct gcpro gcpro1, gcpro2; | |
7087 | ||
9ea173e8 | 7088 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7089 | eval. */ |
7090 | GCPRO2 (key, def); | |
7091 | ||
7092 | if (EQ (def, Qundefined)) | |
7093 | { | |
7094 | /* If a map has an explicit `undefined' as definition, | |
7095 | discard any previously made item. */ | |
9ea173e8 | 7096 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7097 | { |
9ea173e8 | 7098 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 7099 | |
9ea173e8 | 7100 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7101 | { |
9ea173e8 GM |
7102 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7103 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7104 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7105 | * sizeof (Lisp_Object))); |
9ea173e8 | 7106 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7107 | break; |
7108 | } | |
7109 | } | |
7110 | } | |
9ea173e8 GM |
7111 | else if (parse_tool_bar_item (key, def)) |
7112 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7113 | more than one definition for the same key. */ |
9ea173e8 | 7114 | append_tool_bar_item (); |
7ee32cda GM |
7115 | |
7116 | UNGCPRO; | |
7117 | } | |
7118 | ||
7119 | ||
9ea173e8 GM |
7120 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7121 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7122 | invalid. |
7123 | ||
7124 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
7125 | ||
7126 | CAPTION is the caption of the item, If it's not a string, it is | |
7127 | evaluated to get a string. | |
7128 | ||
9ea173e8 | 7129 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7130 | as binding are currently ignored. |
7131 | ||
7132 | The following properties are recognized: | |
7133 | ||
7134 | - `:enable FORM'. | |
7135 | ||
9ea173e8 GM |
7136 | FORM is evaluated and specifies whether the tool bar item is |
7137 | enabled or disabled. | |
7ee32cda GM |
7138 | |
7139 | - `:visible FORM' | |
7140 | ||
9ea173e8 | 7141 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
7142 | |
7143 | - `:filter FUNCTION' | |
7144 | ||
7145 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7146 | result is stored as the new binding. | |
7147 | ||
7148 | - `:button (TYPE SELECTED)' | |
7149 | ||
7150 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7151 | and specifies whether the button is selected (pressed) or not. | |
7152 | ||
7153 | - `:image IMAGES' | |
7154 | ||
7155 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7156 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
7157 | |
7158 | - `:help HELP-STRING'. | |
7159 | ||
9ea173e8 | 7160 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7161 | |
7162 | static int | |
9ea173e8 | 7163 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7164 | Lisp_Object key, item; |
7165 | { | |
9ea173e8 GM |
7166 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7167 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7168 | |
7169 | Lisp_Object filter = Qnil; | |
7170 | Lisp_Object caption; | |
7171 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
7172 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
7173 | int i; | |
7ee32cda | 7174 | |
8c907a56 GM |
7175 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7176 | Rule out items that aren't lists, don't start with | |
7177 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7178 | list. */ |
7179 | if (!CONSP (item) | |
7180 | || !EQ (XCAR (item), Qmenu_item) | |
7181 | || (item = XCDR (item), | |
7182 | !CONSP (item))) | |
7183 | return 0; | |
7184 | ||
9ea173e8 | 7185 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7186 | defaults. */ |
9ea173e8 | 7187 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7188 | { |
9ea173e8 | 7189 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7190 | PROP (i) = Qnil; |
7191 | } | |
7192 | else | |
9ea173e8 GM |
7193 | tool_bar_item_properties |
7194 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
7195 | |
7196 | /* Set defaults. */ | |
9ea173e8 GM |
7197 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7198 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
7199 | |
7200 | /* Get the caption of the item. If the caption is not a string, | |
7201 | evaluate it to get a string. If we don't get a string, skip this | |
7202 | item. */ | |
7203 | caption = XCAR (item); | |
7204 | if (!STRINGP (caption)) | |
7205 | { | |
7206 | caption = menu_item_eval_property (caption); | |
7207 | if (!STRINGP (caption)) | |
7208 | return 0; | |
7209 | } | |
9ea173e8 | 7210 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7211 | |
7212 | /* Give up if rest following the caption is not a list. */ | |
7213 | item = XCDR (item); | |
7214 | if (!CONSP (item)) | |
7215 | return 0; | |
7216 | ||
7217 | /* Store the binding. */ | |
9ea173e8 | 7218 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7219 | item = XCDR (item); |
7220 | ||
8c907a56 GM |
7221 | /* Ignore cached key binding, if any. */ |
7222 | if (CONSP (item) && CONSP (XCAR (item))) | |
7223 | item = XCDR (item); | |
7224 | ||
7ee32cda GM |
7225 | /* Process the rest of the properties. */ |
7226 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7227 | { | |
7228 | Lisp_Object key, value; | |
7229 | ||
7230 | key = XCAR (item); | |
7231 | value = XCAR (XCDR (item)); | |
7232 | ||
7233 | if (EQ (key, QCenable)) | |
7234 | /* `:enable FORM'. */ | |
9ea173e8 | 7235 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7236 | else if (EQ (key, QCvisible)) |
7237 | { | |
7238 | /* `:visible FORM'. If got a visible property and that | |
7239 | evaluates to nil then ignore this item. */ | |
7240 | if (NILP (menu_item_eval_property (value))) | |
7241 | return 0; | |
7242 | } | |
7243 | else if (EQ (key, QChelp)) | |
7244 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7245 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7246 | else if (EQ (key, QCfilter)) |
7247 | /* ':filter FORM'. */ | |
7248 | filter = value; | |
7249 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7250 | { | |
7251 | /* `:button (TYPE . SELECTED)'. */ | |
7252 | Lisp_Object type, selected; | |
7253 | ||
7254 | type = XCAR (value); | |
7255 | selected = XCDR (value); | |
7256 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7257 | { | |
9ea173e8 GM |
7258 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7259 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7260 | } |
7261 | } | |
7262 | else if (EQ (key, QCimage) | |
7263 | && (CONSP (value) | |
7264 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7265 | /* Value is either a single image specification or a vector | |
7266 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 7267 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7268 | } |
7269 | ||
7270 | /* If got a filter apply it on binding. */ | |
7271 | if (!NILP (filter)) | |
9ea173e8 | 7272 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7273 | = menu_item_eval_property (list2 (filter, |
7274 | list2 (Qquote, | |
9ea173e8 | 7275 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7276 | |
7277 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7278 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7279 | return 0; |
7280 | ||
7281 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7282 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7283 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7284 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
7285 | |
7286 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
7287 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7288 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7289 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7290 | |
7291 | return 1; | |
7292 | ||
7293 | #undef PROP | |
7294 | } | |
7295 | ||
7296 | ||
9ea173e8 GM |
7297 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7298 | that can be reused. */ | |
7ee32cda GM |
7299 | |
7300 | static void | |
9ea173e8 | 7301 | init_tool_bar_items (reuse) |
7ee32cda GM |
7302 | Lisp_Object reuse; |
7303 | { | |
7304 | if (VECTORP (reuse)) | |
9ea173e8 | 7305 | tool_bar_items_vector = reuse; |
7ee32cda | 7306 | else |
9ea173e8 GM |
7307 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7308 | ntool_bar_items = 0; | |
7ee32cda GM |
7309 | } |
7310 | ||
7311 | ||
9ea173e8 GM |
7312 | /* Append parsed tool bar item properties from |
7313 | tool_bar_item_properties */ | |
7ee32cda GM |
7314 | |
7315 | static void | |
9ea173e8 | 7316 | append_tool_bar_item () |
7ee32cda GM |
7317 | { |
7318 | Lisp_Object *to, *from; | |
7319 | ||
9ea173e8 GM |
7320 | /* Enlarge tool_bar_items_vector if necessary. */ |
7321 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7322 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7323 | { |
7324 | Lisp_Object new_vector; | |
9ea173e8 | 7325 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7326 | |
7327 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7328 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7329 | XVECTOR (new_vector)->contents, |
7330 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7331 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7332 | } |
7333 | ||
9ea173e8 GM |
7334 | /* Append entries from tool_bar_item_properties to the end of |
7335 | tool_bar_items_vector. */ | |
7336 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7337 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7338 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7339 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7340 | } |
7341 | ||
7342 | ||
7343 | ||
7344 | ||
e8886a1d | 7345 | \f |
dcc408a0 RS |
7346 | /* Read a character using menus based on maps in the array MAPS. |
7347 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7348 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7349 | |
7350 | PREV_EVENT is the previous input event, or nil if we are reading | |
7351 | the first event of a key sequence. | |
7352 | ||
83d68044 | 7353 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7354 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7355 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7356 | |
7357 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7358 | and the strings associated with various map elements. |
8150596a RS |
7359 | |
7360 | This can be done with X menus or with menus put in the minibuf. | |
7361 | These are done in different ways, depending on how the input will be read. | |
7362 | Menus using X are done after auto-saving in read-char, getting the input | |
7363 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7364 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7365 | |
7617111f | 7366 | static Lisp_Object |
8150596a | 7367 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7368 | int nmaps; |
7369 | Lisp_Object *maps; | |
7370 | Lisp_Object prev_event; | |
7371 | int *used_mouse_menu; | |
284f4730 | 7372 | { |
7d6de002 RS |
7373 | int mapno; |
7374 | register Lisp_Object name; | |
7d6de002 | 7375 | |
6569cc8d JB |
7376 | if (used_mouse_menu) |
7377 | *used_mouse_menu = 0; | |
284f4730 JB |
7378 | |
7379 | /* Use local over global Menu maps */ | |
7380 | ||
7d6de002 RS |
7381 | if (! menu_prompting) |
7382 | return Qnil; | |
7383 | ||
03361bcc RS |
7384 | /* Optionally disregard all but the global map. */ |
7385 | if (inhibit_local_menu_bar_menus) | |
7386 | { | |
7387 | maps += (nmaps - 1); | |
7388 | nmaps = 1; | |
7389 | } | |
7390 | ||
7d6de002 RS |
7391 | /* Get the menu name from the first map that has one (a prompt string). */ |
7392 | for (mapno = 0; mapno < nmaps; mapno++) | |
7393 | { | |
7394 | name = map_prompt (maps[mapno]); | |
7395 | if (!NILP (name)) | |
7396 | break; | |
7397 | } | |
284f4730 | 7398 | |
7d6de002 | 7399 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 7400 | if (mapno >= nmaps) |
7d6de002 RS |
7401 | return Qnil; |
7402 | ||
1f5b1641 | 7403 | #ifdef HAVE_MENUS |
7d6de002 RS |
7404 | /* If we got to this point via a mouse click, |
7405 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7406 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7407 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7408 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7409 | { |
7410 | /* Display the menu and get the selection. */ | |
7411 | Lisp_Object *realmaps | |
7412 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7413 | Lisp_Object value; | |
7414 | int nmaps1 = 0; | |
7415 | ||
7416 | /* Use the maps that are not nil. */ | |
7417 | for (mapno = 0; mapno < nmaps; mapno++) | |
7418 | if (!NILP (maps[mapno])) | |
7419 | realmaps[nmaps1++] = maps[mapno]; | |
7420 | ||
7421 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7422 | if (CONSP (value)) |
7423 | { | |
68f297c5 RS |
7424 | Lisp_Object tem; |
7425 | ||
7539e11f | 7426 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7427 | |
68f297c5 RS |
7428 | /* If we got multiple events, unread all but |
7429 | the first. | |
7430 | There is no way to prevent those unread events | |
7431 | from showing up later in last_nonmenu_event. | |
7432 | So turn symbol and integer events into lists, | |
7433 | to indicate that they came from a mouse menu, | |
7434 | so that when present in last_nonmenu_event | |
7435 | they won't confuse things. */ | |
f4e05d97 | 7436 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7437 | { |
7539e11f KR |
7438 | record_menu_key (XCAR (tem)); |
7439 | if (SYMBOLP (XCAR (tem)) | |
7440 | || INTEGERP (XCAR (tem))) | |
f4e05d97 | 7441 | XCAR (tem) = Fcons (XCAR (tem), Qdisabled); |
8eb4d8ef | 7442 | } |
68f297c5 | 7443 | |
663258f2 JB |
7444 | /* If we got more than one event, put all but the first |
7445 | onto this list to be read later. | |
7446 | Return just the first event now. */ | |
24597608 | 7447 | Vunread_command_events |
7539e11f KR |
7448 | = nconc2 (XCDR (value), Vunread_command_events); |
7449 | value = XCAR (value); | |
663258f2 | 7450 | } |
1c90c381 | 7451 | else if (NILP (value)) |
dcc408a0 | 7452 | value = Qt; |
6569cc8d JB |
7453 | if (used_mouse_menu) |
7454 | *used_mouse_menu = 1; | |
7d6de002 RS |
7455 | return value; |
7456 | } | |
1f5b1641 | 7457 | #endif /* HAVE_MENUS */ |
8150596a RS |
7458 | return Qnil ; |
7459 | } | |
7460 | ||
68e0de82 RS |
7461 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7462 | We make this bigger when necessary, and never free it. */ | |
7463 | static char *read_char_minibuf_menu_text; | |
7464 | /* Size of that buffer. */ | |
7465 | static int read_char_minibuf_menu_width; | |
7466 | ||
8150596a | 7467 | static Lisp_Object |
24597608 | 7468 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7469 | int commandflag ; |
7470 | int nmaps; | |
7471 | Lisp_Object *maps; | |
7472 | { | |
7473 | int mapno; | |
7474 | register Lisp_Object name; | |
7475 | int nlength; | |
788f89eb | 7476 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 7477 | int idx = -1; |
9fdbfdf8 | 7478 | int nobindings = 1; |
8150596a | 7479 | Lisp_Object rest, vector; |
68e0de82 | 7480 | char *menu; |
8150596a | 7481 | |
8c907a56 GM |
7482 | vector = Qnil; |
7483 | ||
8150596a RS |
7484 | if (! menu_prompting) |
7485 | return Qnil; | |
7486 | ||
68e0de82 RS |
7487 | /* Make sure we have a big enough buffer for the menu text. */ |
7488 | if (read_char_minibuf_menu_text == 0) | |
7489 | { | |
7490 | read_char_minibuf_menu_width = width + 4; | |
7491 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7492 | } | |
7493 | else if (width + 4 > read_char_minibuf_menu_width) | |
7494 | { | |
7495 | read_char_minibuf_menu_width = width + 4; | |
7496 | read_char_minibuf_menu_text | |
7497 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7498 | } | |
7499 | menu = read_char_minibuf_menu_text; | |
7500 | ||
8150596a RS |
7501 | /* Get the menu name from the first map that has one (a prompt string). */ |
7502 | for (mapno = 0; mapno < nmaps; mapno++) | |
7503 | { | |
7504 | name = map_prompt (maps[mapno]); | |
7505 | if (!NILP (name)) | |
7506 | break; | |
7507 | } | |
7508 | ||
7509 | /* If we don't have any menus, just read a character normally. */ | |
7510 | if (mapno >= nmaps) | |
7511 | return Qnil; | |
284f4730 JB |
7512 | |
7513 | /* Prompt string always starts with map's prompt, and a space. */ | |
7514 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 7515 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 7516 | menu[nlength++] = ':'; |
284f4730 JB |
7517 | menu[nlength++] = ' '; |
7518 | menu[nlength] = 0; | |
7519 | ||
7d6de002 RS |
7520 | /* Start prompting at start of first map. */ |
7521 | mapno = 0; | |
7522 | rest = maps[mapno]; | |
284f4730 JB |
7523 | |
7524 | /* Present the documented bindings, a line at a time. */ | |
7525 | while (1) | |
7526 | { | |
7527 | int notfirst = 0; | |
7528 | int i = nlength; | |
7529 | Lisp_Object obj; | |
7530 | int ch; | |
8066f1a1 | 7531 | Lisp_Object orig_defn_macro; |
284f4730 | 7532 | |
284f4730 | 7533 | /* Loop over elements of map. */ |
7d6de002 | 7534 | while (i < width) |
284f4730 | 7535 | { |
fd3613d7 | 7536 | Lisp_Object elt; |
284f4730 | 7537 | |
7d6de002 RS |
7538 | /* If reached end of map, start at beginning of next map. */ |
7539 | if (NILP (rest)) | |
7540 | { | |
7541 | mapno++; | |
7542 | /* At end of last map, wrap around to first map if just starting, | |
7543 | or end this line if already have something on it. */ | |
7544 | if (mapno == nmaps) | |
284f4730 | 7545 | { |
8150596a | 7546 | mapno = 0; |
40932d1a | 7547 | if (notfirst || nobindings) break; |
284f4730 | 7548 | } |
7d6de002 | 7549 | rest = maps[mapno]; |
284f4730 | 7550 | } |
7d6de002 RS |
7551 | |
7552 | /* Look at the next element of the map. */ | |
7553 | if (idx >= 0) | |
7554 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 7555 | else |
7d6de002 RS |
7556 | elt = Fcar_safe (rest); |
7557 | ||
8c18cbfb | 7558 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7559 | { |
7d6de002 RS |
7560 | /* If we found a dense table in the keymap, |
7561 | advanced past it, but start scanning its contents. */ | |
7562 | rest = Fcdr_safe (rest); | |
7563 | vector = elt; | |
7564 | idx = 0; | |
284f4730 | 7565 | } |
7d6de002 RS |
7566 | else |
7567 | { | |
7568 | /* An ordinary element. */ | |
fd3613d7 | 7569 | Lisp_Object event, tem; |
0a2ea221 KH |
7570 | |
7571 | if (idx < 0) | |
7572 | { | |
fd3613d7 RS |
7573 | event = Fcar_safe (elt); /* alist */ |
7574 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7575 | } |
8150596a | 7576 | else |
7d6de002 | 7577 | { |
fd3613d7 | 7578 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7579 | } |
7580 | ||
7581 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7582 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7583 | { |
7584 | /* 1 if the char to type matches the string. */ | |
7585 | int char_matches; | |
7586 | Lisp_Object upcased_event, downcased_event; | |
8c907a56 | 7587 | Lisp_Object desc = Qnil; |
fd3613d7 RS |
7588 | Lisp_Object s |
7589 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7590 | |
7591 | upcased_event = Fupcase (event); | |
7592 | downcased_event = Fdowncase (event); | |
7593 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7594 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7595 | if (! char_matches) | |
efff6e49 | 7596 | desc = Fsingle_key_description (event, Qnil); |
0a2ea221 | 7597 | |
fd3613d7 RS |
7598 | tem |
7599 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7600 | if (!NILP (tem)) | |
7601 | /* Insert equivalent keybinding. */ | |
7602 | s = concat2 (s, tem); | |
7603 | ||
7604 | tem | |
7605 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7606 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7607 | { | |
7608 | /* Insert button prefix. */ | |
7609 | Lisp_Object selected | |
7610 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7611 | if (EQ (tem, QCradio)) | |
7612 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7613 | else | |
7614 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7615 | s = concat2 (tem, s); | |
7616 | } | |
7617 | ||
7618 | ||
0a2ea221 KH |
7619 | /* If we have room for the prompt string, add it to this line. |
7620 | If this is the first on the line, always add it. */ | |
7621 | if ((XSTRING (s)->size + i + 2 | |
7622 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7623 | < width | |
7624 | || !notfirst) | |
7625 | { | |
7626 | int thiswidth; | |
7627 | ||
7628 | /* Punctuate between strings. */ | |
7629 | if (notfirst) | |
7630 | { | |
7631 | strcpy (menu + i, ", "); | |
7632 | i += 2; | |
7633 | } | |
7634 | notfirst = 1; | |
7635 | nobindings = 0 ; | |
284f4730 | 7636 | |
0a2ea221 KH |
7637 | /* If the char to type doesn't match the string's |
7638 | first char, explicitly show what char to type. */ | |
7639 | if (! char_matches) | |
7640 | { | |
7641 | /* Add as much of string as fits. */ | |
7642 | thiswidth = XSTRING (desc)->size; | |
7643 | if (thiswidth + i > width) | |
7644 | thiswidth = width - i; | |
7645 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7646 | i += thiswidth; | |
7647 | strcpy (menu + i, " = "); | |
7648 | i += 3; | |
7649 | } | |
7650 | ||
7651 | /* Add as much of string as fits. */ | |
7652 | thiswidth = XSTRING (s)->size; | |
7653 | if (thiswidth + i > width) | |
7654 | thiswidth = width - i; | |
7655 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7656 | i += thiswidth; | |
7657 | menu[i] = 0; | |
7658 | } | |
7659 | else | |
7d6de002 | 7660 | { |
0a2ea221 KH |
7661 | /* If this element does not fit, end the line now, |
7662 | and save the element for the next line. */ | |
7663 | strcpy (menu + i, "..."); | |
7664 | break; | |
7d6de002 | 7665 | } |
7d6de002 RS |
7666 | } |
7667 | ||
7668 | /* Move past this element. */ | |
8150596a | 7669 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7670 | /* Handle reaching end of dense table. */ |
7671 | idx = -1; | |
7672 | if (idx >= 0) | |
7673 | idx++; | |
7674 | else | |
7675 | rest = Fcdr_safe (rest); | |
7676 | } | |
284f4730 JB |
7677 | } |
7678 | ||
7679 | /* Prompt with that and read response. */ | |
301738ed RS |
7680 | message2_nolog (menu, strlen (menu), |
7681 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7682 | |
df0f2ba1 | 7683 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7684 | is pressed. Help characters are not recorded because menu prompting |
7685 | is not used on replay. | |
7686 | */ | |
c5fdd383 KH |
7687 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7688 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 | 7689 | do |
7735786b | 7690 | obj = read_char (commandflag, 0, 0, Qt, 0); |
8c18cbfb | 7691 | while (BUFFERP (obj)); |
c5fdd383 | 7692 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7693 | |
8c18cbfb | 7694 | if (!INTEGERP (obj)) |
284f4730 JB |
7695 | return obj; |
7696 | else | |
7697 | ch = XINT (obj); | |
7698 | ||
f4255cd1 | 7699 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7700 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7701 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7702 | { |
c5fdd383 | 7703 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7704 | store_kbd_macro_char (obj); |
8150596a RS |
7705 | return obj; |
7706 | } | |
7707 | /* Help char - go round again */ | |
284f4730 JB |
7708 | } |
7709 | } | |
284f4730 JB |
7710 | \f |
7711 | /* Reading key sequences. */ | |
7712 | ||
7713 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7714 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7715 | keymap, or nil otherwise. Return the index of the first keymap in | |
7716 | which KEY has any binding, or NMAPS if no map has a binding. | |
7717 | ||
7718 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7719 | followed by the corresponding non-meta character. Keymaps in | |
7720 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7721 | NEXT. | |
7722 | ||
88cb0656 JB |
7723 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7724 | unmodified. | |
7725 | ||
569871d2 | 7726 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7727 | |
7728 | static int | |
4e50f26a | 7729 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7730 | Lisp_Object key; |
7731 | Lisp_Object *current, *defs, *next; | |
7732 | int nmaps; | |
7733 | { | |
7734 | int i, first_binding; | |
569871d2 | 7735 | int did_meta = 0; |
284f4730 | 7736 | |
284f4730 JB |
7737 | first_binding = nmaps; |
7738 | for (i = nmaps - 1; i >= 0; i--) | |
7739 | { | |
7740 | if (! NILP (current[i])) | |
7741 | { | |
569871d2 RS |
7742 | Lisp_Object map; |
7743 | if (did_meta) | |
7744 | map = defs[i]; | |
7745 | else | |
7746 | map = current[i]; | |
7747 | ||
db785038 | 7748 | defs[i] = access_keymap (map, key, 1, 0, 1); |
284f4730 JB |
7749 | if (! NILP (defs[i])) |
7750 | first_binding = i; | |
7751 | } | |
7752 | else | |
7753 | defs[i] = Qnil; | |
7754 | } | |
7755 | ||
284f4730 | 7756 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7757 | if (first_binding < nmaps) |
7758 | for (i = 0; i < nmaps; i++) | |
02067692 | 7759 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
7760 | |
7761 | return first_binding; | |
7762 | } | |
7763 | ||
df0f2ba1 | 7764 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7765 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7766 | Prompt with PROMPT. | |
284f4730 | 7767 | Return the length of the key sequence stored. |
dcc408a0 | 7768 | Return -1 if the user rejected a command menu. |
284f4730 | 7769 | |
f4255cd1 JB |
7770 | Echo starting immediately unless `prompt' is 0. |
7771 | ||
7772 | Where a key sequence ends depends on the currently active keymaps. | |
7773 | These include any minor mode keymaps active in the current buffer, | |
7774 | the current buffer's local map, and the global map. | |
7775 | ||
7776 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7777 | to see if some trailing subsequence might be the beginning of a | |
7778 | function key's sequence. If so, we try to read the whole function | |
7779 | key, and substitute its symbolic name into the key sequence. | |
7780 | ||
fbcd35bd JB |
7781 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7782 | `double-' events into similar click events, if that would make them | |
7783 | bound. We try to turn `triple-' events first into `double-' events, | |
7784 | then into clicks. | |
f4255cd1 JB |
7785 | |
7786 | If we get a mouse click in a mode line, vertical divider, or other | |
7787 | non-text area, we treat the click as if it were prefixed by the | |
7788 | symbol denoting that area - `mode-line', `vertical-line', or | |
7789 | whatever. | |
7790 | ||
7791 | If the sequence starts with a mouse click, we read the key sequence | |
7792 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7793 | |
f4255cd1 JB |
7794 | If the user switches frames in the midst of a key sequence, we put |
7795 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7796 | read_char will return it. |
7797 | ||
7798 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7799 | from the selected window's buffer. */ | |
48e416d4 | 7800 | |
284f4730 | 7801 | static int |
ce98e608 | 7802 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7803 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7804 | Lisp_Object *keybuf; |
7805 | int bufsize; | |
84d91fda | 7806 | Lisp_Object prompt; |
309b0fc8 | 7807 | int dont_downcase_last; |
ce98e608 | 7808 | int can_return_switch_frame; |
f571ae0d | 7809 | int fix_current_buffer; |
284f4730 | 7810 | { |
db14cfc5 | 7811 | volatile Lisp_Object from_string; |
8c907a56 | 7812 | volatile int count = specpdl_ptr - specpdl; |
f4255cd1 | 7813 | |
284f4730 | 7814 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 7815 | volatile int t; |
284f4730 | 7816 | |
284f4730 JB |
7817 | /* The length of the echo buffer when we started reading, and |
7818 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
7819 | volatile int echo_start; |
7820 | volatile int keys_start; | |
284f4730 JB |
7821 | |
7822 | /* The number of keymaps we're scanning right now, and the number of | |
7823 | keymaps we have allocated space for. */ | |
8c907a56 GM |
7824 | volatile int nmaps; |
7825 | volatile int nmaps_allocated = 0; | |
284f4730 | 7826 | |
284f4730 JB |
7827 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7828 | the current keymaps. */ | |
8c907a56 | 7829 | Lisp_Object *volatile defs = NULL; |
284f4730 | 7830 | |
f4255cd1 JB |
7831 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7832 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 7833 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 7834 | |
e0dff5f6 | 7835 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 7836 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 7837 | |
30690496 DL |
7838 | /* The map from the `keymap' property to start out with at start of |
7839 | key sequence. */ | |
8c907a56 | 7840 | volatile Lisp_Object orig_keymap; |
30690496 | 7841 | |
e0dff5f6 RS |
7842 | /* 1 if we have already considered switching to the local-map property |
7843 | of the place where a mouse click occurred. */ | |
8c907a56 | 7844 | volatile int localized_local_map = 0; |
e0dff5f6 | 7845 | |
f4255cd1 JB |
7846 | /* The index in defs[] of the first keymap that has a binding for |
7847 | this key sequence. In other words, the lowest i such that | |
7848 | defs[i] is non-nil. */ | |
8c907a56 | 7849 | volatile int first_binding; |
284f4730 | 7850 | |
f4255cd1 | 7851 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7852 | input key. |
7853 | ||
7854 | We use this to recover after recognizing a function key. Once we | |
7855 | realize that a suffix of the current key sequence is actually a | |
7856 | function key's escape sequence, we replace the suffix with the | |
7857 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7858 | contains a new and different key sequence, so the echo area, |
7859 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7860 | this situation, we set mock_input to t, set t to 0, and jump to | |
7861 | restart_sequence; the loop will read keys from keybuf up until | |
7862 | mock_input, thus rebuilding the state; and then it will resume | |
7863 | reading characters from the keyboard. */ | |
8c907a56 | 7864 | volatile int mock_input = 0; |
284f4730 | 7865 | |
253598e4 | 7866 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7867 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7868 | and fkey_map is its binding. | |
253598e4 | 7869 | |
f4255cd1 JB |
7870 | These might be > t, indicating that all function key scanning |
7871 | should hold off until t reaches them. We do this when we've just | |
7872 | recognized a function key, to avoid searching for the function | |
7873 | key's again in Vfunction_key_map. */ | |
8c907a56 GM |
7874 | volatile int fkey_start = 0, fkey_end = 0; |
7875 | volatile Lisp_Object fkey_map; | |
284f4730 | 7876 | |
a612e298 | 7877 | /* Likewise, for key_translation_map. */ |
8c907a56 GM |
7878 | volatile int keytran_start = 0, keytran_end = 0; |
7879 | volatile Lisp_Object keytran_map; | |
a612e298 | 7880 | |
cd21b839 JB |
7881 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7882 | we put it off for later. While we're reading, we keep the event here. */ | |
8c907a56 | 7883 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 7884 | |
51763820 BF |
7885 | /* See the comment below... */ |
7886 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7887 | Lisp_Object first_event; |
51763820 | 7888 | #endif |
4efda7dd | 7889 | |
8c907a56 GM |
7890 | volatile Lisp_Object original_uppercase; |
7891 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 7892 | |
bc536d84 | 7893 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7894 | int dummyflag = 0; |
bc536d84 | 7895 | |
3b9189f8 RS |
7896 | struct buffer *starting_buffer; |
7897 | ||
e9bf89a0 RS |
7898 | /* Nonzero if we seem to have got the beginning of a binding |
7899 | in function_key_map. */ | |
8c907a56 GM |
7900 | volatile int function_key_possible = 0; |
7901 | volatile int key_translation_possible = 0; | |
e9bf89a0 | 7902 | |
2dc00208 GM |
7903 | /* List of events for which a fake prefix key has been generated. */ |
7904 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
7905 | ||
3fe8e9a2 RS |
7906 | /* Save the status of key translation before each step, |
7907 | so that we can restore this after downcasing. */ | |
7908 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7909 | int prev_fkey_start; |
7910 | int prev_fkey_end; | |
3fe8e9a2 RS |
7911 | |
7912 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7913 | int prev_keytran_start; |
7914 | int prev_keytran_end; | |
3fe8e9a2 | 7915 | |
03cee6ae | 7916 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 7917 | int junk; |
03cee6ae | 7918 | #endif |
4efda7dd | 7919 | |
2dc00208 GM |
7920 | struct gcpro gcpro1; |
7921 | ||
7922 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
7923 | raw_keybuf_count = 0; |
7924 | ||
4efda7dd RS |
7925 | last_nonmenu_event = Qnil; |
7926 | ||
7927 | delayed_switch_frame = Qnil; | |
7928 | fkey_map = Vfunction_key_map; | |
a612e298 | 7929 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7930 | |
a612e298 | 7931 | /* If there is no function-key-map, turn off function key scanning. */ |
02067692 | 7932 | if (!KEYMAPP (Vfunction_key_map)) |
f4255cd1 JB |
7933 | fkey_start = fkey_end = bufsize + 1; |
7934 | ||
a612e298 | 7935 | /* If there is no key-translation-map, turn off scanning. */ |
02067692 | 7936 | if (!KEYMAPP (Vkey_translation_map)) |
a612e298 RS |
7937 | keytran_start = keytran_end = bufsize + 1; |
7938 | ||
284f4730 JB |
7939 | if (INTERACTIVE) |
7940 | { | |
84d91fda | 7941 | if (!NILP (prompt)) |
a4ef85ee | 7942 | echo_prompt (prompt); |
f2647d04 DL |
7943 | else if (cursor_in_echo_area |
7944 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
7945 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
7946 | /* This doesn't put in a dash if the echo buffer is empty, so |
7947 | you don't always see a dash hanging out in the minibuffer. */ | |
7948 | echo_dash (); | |
284f4730 JB |
7949 | } |
7950 | ||
f4255cd1 JB |
7951 | /* Record the initial state of the echo area and this_command_keys; |
7952 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 7953 | if (INTERACTIVE) |
df0f2ba1 | 7954 | echo_start = echo_length (); |
f4255cd1 | 7955 | keys_start = this_command_key_count; |
6321824f | 7956 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 7957 | |
51763820 BF |
7958 | #if defined (GOBBLE_FIRST_EVENT) |
7959 | /* This doesn't quite work, because some of the things that read_char | |
7960 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 7961 | this work right. */ |
51763820 | 7962 | |
4efda7dd RS |
7963 | /* Read the first char of the sequence specially, before setting |
7964 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 7965 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 7966 | &junk); |
51763820 | 7967 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 7968 | |
24a40fbb GM |
7969 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
7970 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 7971 | from_string = Qnil; |
e0dff5f6 | 7972 | |
7b4aedb9 JB |
7973 | /* We jump here when the key sequence has been thoroughly changed, and |
7974 | we need to rescan it starting from the beginning. When we jump here, | |
7975 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 7976 | replay_sequence: |
7b4aedb9 | 7977 | |
3b9189f8 | 7978 | starting_buffer = current_buffer; |
e9bf89a0 | 7979 | function_key_possible = 0; |
00a78037 | 7980 | key_translation_possible = 0; |
3b9189f8 | 7981 | |
f4255cd1 | 7982 | /* Build our list of keymaps. |
07d2b8de JB |
7983 | If we recognize a function key and replace its escape sequence in |
7984 | keybuf with its symbol, or if the sequence starts with a mouse | |
7985 | click and we need to switch buffers, we jump back here to rebuild | |
7986 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7987 | { |
284f4730 JB |
7988 | Lisp_Object *maps; |
7989 | ||
217258d5 KH |
7990 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
7991 | || !NILP (Voverriding_local_map)) | |
284f4730 | 7992 | { |
217258d5 | 7993 | if (3 > nmaps_allocated) |
9dd3131c | 7994 | { |
217258d5 KH |
7995 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
7996 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
7997 | nmaps_allocated = 3; | |
9dd3131c | 7998 | } |
217258d5 KH |
7999 | nmaps = 0; |
8000 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8001 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8002 | if (!NILP (Voverriding_local_map)) | |
8003 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 8004 | } |
9dd3131c RS |
8005 | else |
8006 | { | |
30690496 | 8007 | int extra_maps = 2; |
217258d5 | 8008 | nmaps = current_minor_maps (0, &maps); |
30690496 DL |
8009 | if (!NILP (orig_keymap)) |
8010 | extra_maps = 3; | |
8011 | if (nmaps + extra_maps > nmaps_allocated) | |
9dd3131c | 8012 | { |
30690496 DL |
8013 | submaps = (Lisp_Object *) alloca ((nmaps+extra_maps) |
8014 | * sizeof (submaps[0])); | |
8015 | defs = (Lisp_Object *) alloca ((nmaps+extra_maps) | |
8016 | * sizeof (defs[0])); | |
8017 | nmaps_allocated = nmaps + extra_maps; | |
9dd3131c | 8018 | } |
8c907a56 | 8019 | bcopy (maps, (void *) submaps, nmaps * sizeof (submaps[0])); |
30690496 DL |
8020 | if (!NILP (orig_keymap)) |
8021 | submaps[nmaps++] = orig_keymap; | |
217258d5 | 8022 | submaps[nmaps++] = orig_local_map; |
9dd3131c | 8023 | } |
217258d5 | 8024 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
8025 | } |
8026 | ||
8027 | /* Find an accurate initial value for first_binding. */ | |
8028 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8029 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8030 | break; |
8031 | ||
3b9189f8 | 8032 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8033 | t = 0; |
8034 | ||
8035 | /* These are no-ops the first time through, but if we restart, they | |
8036 | revert the echo area and this_command_keys to their original state. */ | |
8037 | this_command_key_count = keys_start; | |
df0f2ba1 | 8038 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8039 | echo_truncate (echo_start); |
8040 | ||
cca310da JB |
8041 | /* If the best binding for the current key sequence is a keymap, or |
8042 | we may be looking at a function key's escape sequence, keep on | |
8043 | reading. */ | |
253598e4 | 8044 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
8045 | || (first_binding >= nmaps |
8046 | && fkey_start < t | |
8047 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 8048 | && mock_input <= fkey_start) |
0d882d52 KH |
8049 | || (first_binding >= nmaps |
8050 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
8051 | /* Don't return in the middle of a possible function key sequence, |
8052 | if the only bindings we found were via case conversion. | |
8053 | Thus, if ESC O a has a function-key-map translation | |
8054 | and ESC o has a binding, don't return after ESC O, | |
8055 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 8056 | ) |
284f4730 JB |
8057 | { |
8058 | Lisp_Object key; | |
7d6de002 | 8059 | int used_mouse_menu = 0; |
284f4730 | 8060 | |
7b4aedb9 JB |
8061 | /* Where the last real key started. If we need to throw away a |
8062 | key that has expanded into more than one element of keybuf | |
8063 | (say, a mouse click on the mode line which is being treated | |
8064 | as [mode-line (mouse-...)], then we backtrack to this point | |
8065 | of keybuf. */ | |
8c907a56 | 8066 | volatile int last_real_key_start; |
7b4aedb9 | 8067 | |
0a7f1fc0 JB |
8068 | /* These variables are analogous to echo_start and keys_start; |
8069 | while those allow us to restart the entire key sequence, | |
8070 | echo_local_start and keys_local_start allow us to throw away | |
8071 | just one key. */ | |
8c907a56 | 8072 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8073 | |
284f4730 | 8074 | if (t >= bufsize) |
3fe8e9a2 | 8075 | error ("Key sequence too long"); |
284f4730 | 8076 | |
f4255cd1 JB |
8077 | if (INTERACTIVE) |
8078 | echo_local_start = echo_length (); | |
8079 | keys_local_start = this_command_key_count; | |
8080 | local_first_binding = first_binding; | |
df0f2ba1 | 8081 | |
f4255cd1 | 8082 | replay_key: |
0a7f1fc0 | 8083 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8084 | jumped back up to replay_key; in that case, these restore the |
8085 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8086 | loop. */ |
40932d1a | 8087 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8088 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8089 | this_command_key_count = keys_local_start; |
8090 | first_binding = local_first_binding; | |
8091 | ||
7e85b935 RS |
8092 | /* By default, assume each event is "real". */ |
8093 | last_real_key_start = t; | |
8094 | ||
f4255cd1 | 8095 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8096 | if (t < mock_input) |
8097 | { | |
8098 | key = keybuf[t]; | |
8099 | add_command_key (key); | |
f2647d04 DL |
8100 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8101 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8102 | echo_char (key); |
284f4730 | 8103 | } |
253598e4 JB |
8104 | |
8105 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8106 | else |
8107 | { | |
beecf6a1 | 8108 | { |
c5fdd383 KH |
8109 | #ifdef MULTI_KBOARD |
8110 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8111 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8112 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8113 | { |
5798cf15 KH |
8114 | if (!NILP (delayed_switch_frame)) |
8115 | { | |
c5fdd383 | 8116 | interrupted_kboard->kbd_queue |
5798cf15 | 8117 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8118 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8119 | delayed_switch_frame = Qnil; |
8120 | } | |
beecf6a1 | 8121 | while (t > 0) |
c5fdd383 KH |
8122 | interrupted_kboard->kbd_queue |
8123 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8124 | |
8125 | /* If the side queue is non-empty, ensure it begins with a | |
8126 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8127 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8128 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8129 | !(EVENT_HAS_PARAMETERS (key) |
8130 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8131 | Qswitch_frame)))) | |
df0f2ba1 KH |
8132 | { |
8133 | Lisp_Object frame; | |
8134 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8135 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8136 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8137 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8138 | } |
beecf6a1 | 8139 | mock_input = 0; |
24a40fbb GM |
8140 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8141 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8142 | goto replay_sequence; |
8143 | } | |
bded54dd | 8144 | #endif |
8c907a56 GM |
8145 | key = read_char (NILP (prompt), nmaps, |
8146 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8147 | &used_mouse_menu); |
8148 | } | |
284f4730 | 8149 | |
dcc408a0 RS |
8150 | /* read_char returns t when it shows a menu and the user rejects it. |
8151 | Just return -1. */ | |
8152 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8153 | { |
8154 | unbind_to (count, Qnil); | |
2dc00208 | 8155 | UNGCPRO; |
7d18f9ae RS |
8156 | return -1; |
8157 | } | |
dcc408a0 | 8158 | |
f4255cd1 | 8159 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8160 | Emacs 18 handles this by returning immediately with a |
8161 | zero, so that's what we'll do. */ | |
8c18cbfb | 8162 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8163 | { |
f4255cd1 | 8164 | t = 0; |
bc536d84 RS |
8165 | /* The Microsoft C compiler can't handle the goto that |
8166 | would go here. */ | |
309b0fc8 | 8167 | dummyflag = 1; |
bc536d84 | 8168 | break; |
cd21b839 | 8169 | } |
df0f2ba1 | 8170 | |
3cb81011 KH |
8171 | /* If the current buffer has been changed from under us, the |
8172 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8173 | if (BUFFERP (key)) |
3cb81011 KH |
8174 | { |
8175 | mock_input = t; | |
f571ae0d RS |
8176 | /* Reset the current buffer from the selected window |
8177 | in case something changed the former and not the latter. | |
8178 | This is to be more consistent with the behavior | |
8179 | of the command_loop_1. */ | |
8180 | if (fix_current_buffer) | |
a94a4335 | 8181 | { |
788f89eb | 8182 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8183 | Fkill_emacs (Qnil); |
8184 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8185 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8186 | } | |
f571ae0d | 8187 | |
24a40fbb GM |
8188 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8189 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8190 | goto replay_sequence; |
8191 | } | |
8192 | ||
3b9189f8 RS |
8193 | /* If we have a quit that was typed in another frame, and |
8194 | quit_throw_to_read_char switched buffers, | |
8195 | replay to get the right keymap. */ | |
f4e05d97 GM |
8196 | if (INTEGERP (key) |
8197 | && XINT (key) == quit_char | |
8198 | && current_buffer != starting_buffer) | |
3b9189f8 | 8199 | { |
7d18f9ae RS |
8200 | GROW_RAW_KEYBUF; |
8201 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8202 | keybuf[t++] = key; |
8203 | mock_input = t; | |
8204 | Vquit_flag = Qnil; | |
24a40fbb GM |
8205 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8206 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8207 | goto replay_sequence; |
8208 | } | |
3cb81011 | 8209 | |
284f4730 | 8210 | Vquit_flag = Qnil; |
7d18f9ae RS |
8211 | |
8212 | if (EVENT_HAS_PARAMETERS (key) | |
8213 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
8214 | { | |
8215 | /* If we're at the beginning of a key sequence, and the caller | |
8216 | says it's okay, go ahead and return this event. If we're | |
8217 | in the midst of a key sequence, delay it until the end. */ | |
8218 | if (t > 0 || !can_return_switch_frame) | |
8219 | { | |
8220 | delayed_switch_frame = key; | |
8221 | goto replay_key; | |
8222 | } | |
8223 | } | |
8224 | ||
8225 | GROW_RAW_KEYBUF; | |
8226 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8227 | } |
284f4730 | 8228 | |
df0f2ba1 | 8229 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8230 | in their CHAR-ADDRESS field. For example, a click on |
8231 | the mode line is prefixed by the symbol `mode-line'. | |
8232 | ||
8233 | Furthermore, key sequences beginning with mouse clicks | |
8234 | are read using the keymaps of the buffer clicked on, not | |
8235 | the current buffer. So we may have to switch the buffer | |
8236 | here. | |
8237 | ||
8238 | When we turn one event into two events, we must make sure | |
8239 | that neither of the two looks like the original--so that, | |
8240 | if we replay the events, they won't be expanded again. | |
8241 | If not for this, such reexpansion could happen either here | |
8242 | or when user programs play with this-command-keys. */ | |
8243 | if (EVENT_HAS_PARAMETERS (key)) | |
8244 | { | |
9b8eb840 | 8245 | Lisp_Object kind; |
cca310da | 8246 | |
9b8eb840 | 8247 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8248 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8249 | { |
9b8eb840 | 8250 | Lisp_Object window, posn; |
f4255cd1 | 8251 | |
9b8eb840 KH |
8252 | window = POSN_WINDOW (EVENT_START (key)); |
8253 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8254 | |
2cf066c3 GM |
8255 | if (CONSP (posn) |
8256 | || (!NILP (fake_prefixed_keys) | |
8257 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8258 | { |
2cf066c3 GM |
8259 | /* We're looking a second time at an event for which |
8260 | we generated a fake prefix key. Set | |
7e85b935 RS |
8261 | last_real_key_start appropriately. */ |
8262 | if (t > 0) | |
8263 | last_real_key_start = t - 1; | |
cd21b839 | 8264 | } |
7e85b935 RS |
8265 | |
8266 | /* Key sequences beginning with mouse clicks are | |
8267 | read using the keymaps in the buffer clicked on, | |
8268 | not the current buffer. If we're at the | |
8269 | beginning of a key sequence, switch buffers. */ | |
8270 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8271 | && WINDOWP (window) |
8272 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8273 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8274 | { |
7d18f9ae | 8275 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8276 | keybuf[t] = key; |
8277 | mock_input = t + 1; | |
8278 | ||
8279 | /* Arrange to go back to the original buffer once we're | |
8280 | done reading the key sequence. Note that we can't | |
8281 | use save_excursion_{save,restore} here, because they | |
8282 | save point as well as the current buffer; we don't | |
8283 | want to save point, because redisplay may change it, | |
8284 | to accommodate a Fset_window_start or something. We | |
8285 | don't want to do this at the top of the function, | |
8286 | because we may get input from a subprocess which | |
8287 | wants to change the selected window and stuff (say, | |
8288 | emacsclient). */ | |
8289 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8290 | ||
788f89eb | 8291 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8292 | Fkill_emacs (Qnil); |
24a40fbb | 8293 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8294 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8295 | Qlocal_map); |
8296 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8297 | goto replay_sequence; |
0a7f1fc0 | 8298 | } |
7ee32cda | 8299 | |
e0dff5f6 RS |
8300 | /* For a mouse click, get the local text-property keymap |
8301 | of the place clicked on, rather than point. */ | |
7ee32cda | 8302 | if (last_real_key_start == 0 |
7539e11f | 8303 | && CONSP (XCDR (key)) |
e0dff5f6 | 8304 | && ! localized_local_map) |
5ec75a55 | 8305 | { |
e0dff5f6 RS |
8306 | Lisp_Object map_here, start, pos; |
8307 | ||
8308 | localized_local_map = 1; | |
8309 | start = EVENT_START (key); | |
7ee32cda | 8310 | |
7539e11f | 8311 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8312 | { |
8313 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8314 | if (INTEGERP (pos) |
8315 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8316 | { |
30690496 | 8317 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8318 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8319 | if (!EQ (map_here, orig_local_map)) |
8320 | { | |
8321 | orig_local_map = map_here; | |
8322 | keybuf[t] = key; | |
8323 | mock_input = t + 1; | |
5ec75a55 | 8324 | |
30690496 DL |
8325 | goto replay_sequence; |
8326 | } | |
8327 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8328 | current_buffer, Qkeymap); |
30690496 DL |
8329 | if (!EQ (map_here, orig_keymap)) |
8330 | { | |
8331 | orig_keymap = map_here; | |
8332 | keybuf[t] = key; | |
8333 | mock_input = t + 1; | |
8334 | ||
e0dff5f6 RS |
8335 | goto replay_sequence; |
8336 | } | |
8337 | } | |
8338 | } | |
8339 | } | |
8340 | ||
8341 | /* Expand mode-line and scroll-bar events into two events: | |
8342 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8343 | if (SYMBOLP (posn) |
8344 | && (NILP (fake_prefixed_keys) | |
8345 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8346 | { |
7e85b935 | 8347 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8348 | error ("Key sequence too long"); |
7ee32cda | 8349 | |
2dc00208 GM |
8350 | keybuf[t] = posn; |
8351 | keybuf[t + 1] = key; | |
8352 | mock_input = t + 2; | |
8353 | ||
8354 | /* Record that a fake prefix key has been generated | |
8355 | for KEY. Don't modify the event; this would | |
8356 | prevent proper action when the event is pushed | |
8357 | back tino unread-command-events. */ | |
8358 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); | |
7ee32cda GM |
8359 | |
8360 | /* If on a mode line string with a local keymap, | |
8361 | reconsider the key sequence with that keymap. */ | |
8362 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8363 | { | |
30690496 | 8364 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8365 | |
8366 | string = POSN_STRING (EVENT_START (key)); | |
8367 | pos = XCDR (string); | |
8368 | string = XCAR (string); | |
52e386c2 KR |
8369 | if (XINT (pos) >= 0 |
8370 | && XINT (pos) < XSTRING (string)->size) | |
30690496 DL |
8371 | { |
8372 | map = Fget_text_property (pos, Qlocal_map, string); | |
8373 | if (!NILP (map)) | |
8374 | orig_local_map = map; | |
8375 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8376 | if (!NILP (map2)) | |
8377 | orig_keymap = map2; | |
8378 | if (!NILP (map) || !NILP (map2)) | |
8379 | goto replay_sequence; | |
8380 | } | |
7ee32cda GM |
8381 | } |
8382 | ||
7e85b935 | 8383 | goto replay_key; |
5ec75a55 | 8384 | } |
db14cfc5 GM |
8385 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8386 | && NILP (from_string)) | |
8387 | { | |
8388 | /* For a click on a string, i.e. overlay string or a | |
8389 | string displayed via the `display' property, | |
8390 | consider `local-map' and `keymap' properties of | |
8391 | that string. */ | |
8392 | Lisp_Object string, pos, map, map2; | |
8393 | ||
8394 | string = POSN_STRING (EVENT_START (key)); | |
8395 | pos = XCDR (string); | |
8396 | string = XCAR (string); | |
8397 | if (XINT (pos) >= 0 | |
8398 | && XINT (pos) < XSTRING (string)->size) | |
8399 | { | |
8400 | map = Fget_text_property (pos, Qlocal_map, string); | |
8401 | if (!NILP (map)) | |
8402 | orig_local_map = map; | |
8403 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8404 | if (!NILP (map2)) | |
8405 | orig_keymap = map2; | |
8406 | ||
8407 | if (!NILP (map) || !NILP (map2)) | |
8408 | { | |
8409 | from_string = string; | |
8410 | goto replay_sequence; | |
8411 | } | |
8412 | } | |
8413 | } | |
0a7f1fc0 | 8414 | } |
7539e11f | 8415 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8416 | && CONSP (EVENT_START (key)) |
7539e11f | 8417 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8418 | { |
9b8eb840 | 8419 | Lisp_Object posn; |
7e85b935 | 8420 | |
9b8eb840 | 8421 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8422 | /* Handle menu-bar events: |
8423 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8424 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8425 | { |
8426 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8427 | error ("Key sequence too long"); |
7e85b935 RS |
8428 | keybuf[t] = posn; |
8429 | keybuf[t+1] = key; | |
8430 | ||
8431 | /* Zap the position in key, so we know that we've | |
8432 | expanded it, and don't try to do so again. */ | |
8433 | POSN_BUFFER_POSN (EVENT_START (key)) | |
8434 | = Fcons (posn, Qnil); | |
8435 | ||
8436 | mock_input = t + 2; | |
8437 | goto replay_sequence; | |
8438 | } | |
8c18cbfb | 8439 | else if (CONSP (posn)) |
7e85b935 RS |
8440 | { |
8441 | /* We're looking at the second event of a | |
8442 | sequence which we expanded before. Set | |
8443 | last_real_key_start appropriately. */ | |
8444 | if (last_real_key_start == t && t > 0) | |
8445 | last_real_key_start = t - 1; | |
8446 | } | |
a6d53864 | 8447 | } |
284f4730 | 8448 | } |
f4255cd1 JB |
8449 | |
8450 | /* We have finally decided that KEY is something we might want | |
8451 | to look up. */ | |
284f4730 JB |
8452 | first_binding = (follow_key (key, |
8453 | nmaps - first_binding, | |
253598e4 | 8454 | submaps + first_binding, |
284f4730 | 8455 | defs + first_binding, |
4e50f26a | 8456 | submaps + first_binding) |
284f4730 | 8457 | + first_binding); |
0a7f1fc0 | 8458 | |
f4255cd1 | 8459 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
8460 | if (first_binding >= nmaps) |
8461 | { | |
9b8eb840 | 8462 | Lisp_Object head; |
0a7f1fc0 | 8463 | |
9b8eb840 | 8464 | head = EVENT_HEAD (key); |
24736fbc | 8465 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
8466 | { |
8467 | read_key_sequence_cmd = Vprefix_help_command; | |
8468 | keybuf[t++] = key; | |
8469 | last_nonmenu_event = key; | |
bc536d84 RS |
8470 | /* The Microsoft C compiler can't handle the goto that |
8471 | would go here. */ | |
309b0fc8 | 8472 | dummyflag = 1; |
0d882d52 | 8473 | break; |
7e85b935 RS |
8474 | } |
8475 | ||
8c18cbfb | 8476 | if (SYMBOLP (head)) |
0a7f1fc0 | 8477 | { |
9b8eb840 KH |
8478 | Lisp_Object breakdown; |
8479 | int modifiers; | |
0a7f1fc0 | 8480 | |
9b8eb840 | 8481 | breakdown = parse_modifiers (head); |
7539e11f | 8482 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
8483 | /* Attempt to reduce an unbound mouse event to a simpler |
8484 | event that is bound: | |
8485 | Drags reduce to clicks. | |
8486 | Double-clicks reduce to clicks. | |
8487 | Triple-clicks reduce to double-clicks, then to clicks. | |
8488 | Down-clicks are eliminated. | |
8489 | Double-downs reduce to downs, then are eliminated. | |
8490 | Triple-downs reduce to double-downs, then to downs, | |
8491 | then are eliminated. */ | |
8492 | if (modifiers & (down_modifier | drag_modifier | |
8493 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 8494 | { |
559f9d04 RS |
8495 | while (modifiers & (down_modifier | drag_modifier |
8496 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
8497 | { |
8498 | Lisp_Object new_head, new_click; | |
8499 | if (modifiers & triple_modifier) | |
8500 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
8501 | else if (modifiers & double_modifier) |
8502 | modifiers &= ~double_modifier; | |
8503 | else if (modifiers & drag_modifier) | |
8504 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
8505 | else |
8506 | { | |
8507 | /* Dispose of this `down' event by simply jumping | |
8508 | back to replay_key, to get another event. | |
8509 | ||
8510 | Note that if this event came from mock input, | |
8511 | then just jumping back to replay_key will just | |
8512 | hand it to us again. So we have to wipe out any | |
8513 | mock input. | |
8514 | ||
8515 | We could delete keybuf[t] and shift everything | |
8516 | after that to the left by one spot, but we'd also | |
8517 | have to fix up any variable that points into | |
8518 | keybuf, and shifting isn't really necessary | |
8519 | anyway. | |
8520 | ||
8521 | Adding prefixes for non-textual mouse clicks | |
8522 | creates two characters of mock input, and both | |
8523 | must be thrown away. If we're only looking at | |
8524 | the prefix now, we can just jump back to | |
8525 | replay_key. On the other hand, if we've already | |
8526 | processed the prefix, and now the actual click | |
8527 | itself is giving us trouble, then we've lost the | |
8528 | state of the keymaps we want to backtrack to, and | |
8529 | we need to replay the whole sequence to rebuild | |
8530 | it. | |
8531 | ||
8532 | Beyond that, only function key expansion could | |
8533 | create more than two keys, but that should never | |
8534 | generate mouse events, so it's okay to zero | |
8535 | mock_input in that case too. | |
8536 | ||
8537 | Isn't this just the most wonderful code ever? */ | |
8538 | if (t == last_real_key_start) | |
8539 | { | |
8540 | mock_input = 0; | |
8541 | goto replay_key; | |
8542 | } | |
8543 | else | |
8544 | { | |
8545 | mock_input = last_real_key_start; | |
8546 | goto replay_sequence; | |
8547 | } | |
8548 | } | |
8549 | ||
27203ead | 8550 | new_head |
7539e11f | 8551 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
8552 | new_click |
8553 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
8554 | |
8555 | /* Look for a binding for this new key. follow_key | |
8556 | promises that it didn't munge submaps the | |
8557 | last time we called it, since key was unbound. */ | |
27203ead RS |
8558 | first_binding |
8559 | = (follow_key (new_click, | |
8560 | nmaps - local_first_binding, | |
8561 | submaps + local_first_binding, | |
8562 | defs + local_first_binding, | |
4e50f26a | 8563 | submaps + local_first_binding) |
27203ead | 8564 | + local_first_binding); |
fbcd35bd JB |
8565 | |
8566 | /* If that click is bound, go for it. */ | |
8567 | if (first_binding < nmaps) | |
8568 | { | |
8569 | key = new_click; | |
8570 | break; | |
8571 | } | |
8572 | /* Otherwise, we'll leave key set to the drag event. */ | |
8573 | } | |
0a7f1fc0 JB |
8574 | } |
8575 | } | |
8576 | } | |
8577 | ||
284f4730 | 8578 | keybuf[t++] = key; |
7d6de002 RS |
8579 | /* Normally, last_nonmenu_event gets the previous key we read. |
8580 | But when a mouse popup menu is being used, | |
8581 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8582 | event that preceded the first level of menu. */ | |
8583 | if (!used_mouse_menu) | |
8584 | last_nonmenu_event = key; | |
284f4730 | 8585 | |
6321824f RS |
8586 | /* Record what part of this_command_keys is the current key sequence. */ |
8587 | this_single_command_key_start = this_command_key_count - t; | |
8588 | ||
3fe8e9a2 RS |
8589 | prev_fkey_map = fkey_map; |
8590 | prev_fkey_start = fkey_start; | |
8591 | prev_fkey_end = fkey_end; | |
8592 | ||
8593 | prev_keytran_map = keytran_map; | |
8594 | prev_keytran_start = keytran_start; | |
8595 | prev_keytran_end = keytran_end; | |
8596 | ||
284f4730 | 8597 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
8598 | off the end of it. We only want to scan real keyboard input |
8599 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 8600 | re-reading old events, don't examine it. */ |
4e50f26a | 8601 | if (first_binding >= nmaps |
253598e4 | 8602 | && t >= mock_input) |
284f4730 JB |
8603 | { |
8604 | Lisp_Object fkey_next; | |
8605 | ||
e9bf89a0 RS |
8606 | /* Continue scan from fkey_end until we find a bound suffix. |
8607 | If we fail, increment fkey_start | |
8608 | and start fkey_end from there. */ | |
284f4730 JB |
8609 | while (fkey_end < t) |
8610 | { | |
f4255cd1 JB |
8611 | Lisp_Object key; |
8612 | ||
8613 | key = keybuf[fkey_end++]; | |
e74fbc70 | 8614 | fkey_next |
db785038 | 8615 | = access_keymap (fkey_map, key, 1, 0, 1); |
c700c260 RS |
8616 | |
8617 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8618 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8619 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 8620 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
8621 | do_autoload (XSYMBOL (fkey_next)->function, |
8622 | fkey_next); | |
c700c260 RS |
8623 | |
8624 | /* Handle a symbol whose function definition is a keymap | |
8625 | or an array. */ | |
0afc861b RS |
8626 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8627 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
02067692 | 8628 | || KEYMAPP (XSYMBOL (fkey_next)->function))) |
0afc861b | 8629 | fkey_next = XSYMBOL (fkey_next)->function; |
067ffa38 | 8630 | |
7a80a6f6 RS |
8631 | #if 0 /* I didn't turn this on, because it might cause trouble |
8632 | for the mapping of return into C-m and tab into C-i. */ | |
8633 | /* Optionally don't map function keys into other things. | |
8634 | This enables the user to redefine kp- keys easily. */ | |
8635 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8636 | fkey_next = Qnil; | |
8637 | #endif | |
8638 | ||
1abe6abe RS |
8639 | /* If the function key map gives a function, not an |
8640 | array, then call the function with no args and use | |
8641 | its value instead. */ | |
8642 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8643 | && fkey_end == t) | |
8644 | { | |
8645 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8646 | Lisp_Object tem; | |
8647 | tem = fkey_next; | |
8648 | ||
8649 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8650 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8651 | UNGCPRO; |
8652 | /* If the function returned something invalid, | |
8653 | barf--don't ignore it. | |
df0f2ba1 | 8654 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8655 | other variables.) */ |
8656 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8657 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8658 | } |
8659 | ||
e9bf89a0 RS |
8660 | function_key_possible = ! NILP (fkey_next); |
8661 | ||
85bc5181 | 8662 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8663 | function key map and it's a suffix of the current |
85bc5181 | 8664 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8665 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8666 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8667 | && fkey_end == t) |
8668 | { | |
2e864a76 | 8669 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8670 | |
8671 | t = fkey_start + len; | |
284f4730 | 8672 | if (t >= bufsize) |
3fe8e9a2 | 8673 | error ("Key sequence too long"); |
284f4730 | 8674 | |
f5ea6163 JB |
8675 | if (VECTORP (fkey_next)) |
8676 | bcopy (XVECTOR (fkey_next)->contents, | |
8677 | keybuf + fkey_start, | |
8678 | (t - fkey_start) * sizeof (keybuf[0])); | |
8679 | else if (STRINGP (fkey_next)) | |
8680 | { | |
8681 | int i; | |
8682 | ||
8683 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8684 | XSETFASTINT (keybuf[fkey_start + i], |
8685 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8686 | } |
df0f2ba1 | 8687 | |
284f4730 JB |
8688 | mock_input = t; |
8689 | fkey_start = fkey_end = t; | |
32e6d806 | 8690 | fkey_map = Vfunction_key_map; |
284f4730 | 8691 | |
3bd0dffb KH |
8692 | /* Do pass the results through key-translation-map. |
8693 | But don't retranslate what key-translation-map | |
8694 | has already translated. */ | |
8695 | keytran_end = keytran_start; | |
00a78037 RS |
8696 | keytran_map = Vkey_translation_map; |
8697 | ||
f4255cd1 | 8698 | goto replay_sequence; |
284f4730 | 8699 | } |
df0f2ba1 | 8700 | |
02067692 | 8701 | fkey_map = get_keymap (fkey_next, 0, 1); |
284f4730 | 8702 | |
df0f2ba1 | 8703 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8704 | fkey_start. */ |
02067692 | 8705 | if (!CONSP (fkey_map)) |
284f4730 JB |
8706 | { |
8707 | fkey_end = ++fkey_start; | |
8708 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8709 | function_key_possible = 0; |
284f4730 JB |
8710 | } |
8711 | } | |
8712 | } | |
a612e298 RS |
8713 | |
8714 | /* Look for this sequence in key-translation-map. */ | |
8715 | { | |
8716 | Lisp_Object keytran_next; | |
8717 | ||
8718 | /* Scan from keytran_end until we find a bound suffix. */ | |
8719 | while (keytran_end < t) | |
8720 | { | |
8721 | Lisp_Object key; | |
8722 | ||
8723 | key = keybuf[keytran_end++]; | |
a612e298 | 8724 | keytran_next |
db785038 | 8725 | = access_keymap (keytran_map, key, 1, 0, 1); |
a612e298 | 8726 | |
c700c260 | 8727 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8728 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8729 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8730 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8731 | do_autoload (XSYMBOL (keytran_next)->function, |
8732 | keytran_next); | |
8733 | ||
c700c260 RS |
8734 | /* Handle a symbol whose function definition is a keymap |
8735 | or an array. */ | |
e83f6bb0 | 8736 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 | 8737 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
02067692 | 8738 | || KEYMAPP (XSYMBOL (keytran_next)->function))) |
e83f6bb0 RS |
8739 | keytran_next = XSYMBOL (keytran_next)->function; |
8740 | ||
1abe6abe | 8741 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8742 | array, then call the function with one arg and use |
1abe6abe RS |
8743 | its value instead. */ |
8744 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8745 | && keytran_end == t) | |
8746 | { | |
8747 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8748 | Lisp_Object tem; | |
8749 | tem = keytran_next; | |
8750 | ||
40932d1a | 8751 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8752 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8753 | UNGCPRO; |
8754 | /* If the function returned something invalid, | |
8755 | barf--don't ignore it. | |
df0f2ba1 | 8756 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8757 | other variables.) */ |
8758 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8759 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8760 | } |
8761 | ||
00a78037 RS |
8762 | key_translation_possible = ! NILP (keytran_next); |
8763 | ||
a612e298 | 8764 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8765 | key translation map and it's a suffix of the current |
a612e298 RS |
8766 | sequence (i.e. keytran_end == t), replace it with |
8767 | the binding and restart with keytran_start at the end. */ | |
8768 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8769 | && keytran_end == t) | |
8770 | { | |
2e864a76 | 8771 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8772 | |
8773 | t = keytran_start + len; | |
8774 | if (t >= bufsize) | |
3fe8e9a2 | 8775 | error ("Key sequence too long"); |
a612e298 RS |
8776 | |
8777 | if (VECTORP (keytran_next)) | |
8778 | bcopy (XVECTOR (keytran_next)->contents, | |
8779 | keybuf + keytran_start, | |
8780 | (t - keytran_start) * sizeof (keybuf[0])); | |
8781 | else if (STRINGP (keytran_next)) | |
8782 | { | |
8783 | int i; | |
8784 | ||
8785 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8786 | XSETFASTINT (keybuf[keytran_start + i], |
8787 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8788 | } |
8789 | ||
8790 | mock_input = t; | |
8791 | keytran_start = keytran_end = t; | |
8792 | keytran_map = Vkey_translation_map; | |
8793 | ||
00a78037 RS |
8794 | /* Don't pass the results of key-translation-map |
8795 | through function-key-map. */ | |
8796 | fkey_start = fkey_end = t; | |
3bd0dffb | 8797 | fkey_map = Vfunction_key_map; |
00a78037 | 8798 | |
a612e298 RS |
8799 | goto replay_sequence; |
8800 | } | |
8801 | ||
02067692 | 8802 | keytran_map = get_keymap (keytran_next, 0, 1); |
a612e298 | 8803 | |
df0f2ba1 | 8804 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 | 8805 | keytran_start. */ |
02067692 | 8806 | if (!CONSP (keytran_map)) |
a612e298 RS |
8807 | { |
8808 | keytran_end = ++keytran_start; | |
8809 | keytran_map = Vkey_translation_map; | |
00a78037 | 8810 | key_translation_possible = 0; |
a612e298 RS |
8811 | } |
8812 | } | |
8813 | } | |
4e50f26a RS |
8814 | |
8815 | /* If KEY is not defined in any of the keymaps, | |
8816 | and cannot be part of a function key or translation, | |
8817 | and is an upper case letter | |
8818 | use the corresponding lower-case letter instead. */ | |
8819 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 8820 | && ! key_translation_possible |
8c18cbfb | 8821 | && INTEGERP (key) |
4e50f26a | 8822 | && ((((XINT (key) & 0x3ffff) |
301738ed | 8823 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
8824 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
8825 | || (XINT (key) & shift_modifier))) | |
8826 | { | |
569871d2 | 8827 | Lisp_Object new_key; |
569871d2 | 8828 | |
309b0fc8 RS |
8829 | original_uppercase = key; |
8830 | original_uppercase_position = t - 1; | |
8831 | ||
831f35a2 | 8832 | if (XINT (key) & shift_modifier) |
569871d2 | 8833 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 8834 | else |
569871d2 RS |
8835 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
8836 | | (XINT (key) & ~0x3ffff))); | |
8837 | ||
3fe8e9a2 RS |
8838 | /* We have to do this unconditionally, regardless of whether |
8839 | the lower-case char is defined in the keymaps, because they | |
8840 | might get translated through function-key-map. */ | |
8841 | keybuf[t - 1] = new_key; | |
8842 | mock_input = t; | |
8843 | ||
8844 | fkey_map = prev_fkey_map; | |
8845 | fkey_start = prev_fkey_start; | |
8846 | fkey_end = prev_fkey_end; | |
8847 | ||
8848 | keytran_map = prev_keytran_map; | |
8849 | keytran_start = prev_keytran_start; | |
8850 | keytran_end = prev_keytran_end; | |
8851 | ||
8852 | goto replay_sequence; | |
4e50f26a | 8853 | } |
ef8fd672 RS |
8854 | /* If KEY is not defined in any of the keymaps, |
8855 | and cannot be part of a function key or translation, | |
8856 | and is a shifted function key, | |
8857 | use the corresponding unshifted function key instead. */ | |
8858 | if (first_binding == nmaps && ! function_key_possible | |
8859 | && ! key_translation_possible | |
8860 | && SYMBOLP (key)) | |
8861 | { | |
8862 | Lisp_Object breakdown; | |
8863 | int modifiers; | |
8864 | ||
8865 | breakdown = parse_modifiers (key); | |
7539e11f | 8866 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
8867 | if (modifiers & shift_modifier) |
8868 | { | |
569871d2 | 8869 | Lisp_Object new_key; |
3fe8e9a2 RS |
8870 | |
8871 | original_uppercase = key; | |
8872 | original_uppercase_position = t - 1; | |
ef8fd672 | 8873 | |
569871d2 RS |
8874 | modifiers &= ~shift_modifier; |
8875 | new_key = apply_modifiers (modifiers, | |
7539e11f | 8876 | XCAR (breakdown)); |
569871d2 | 8877 | |
3fe8e9a2 RS |
8878 | keybuf[t - 1] = new_key; |
8879 | mock_input = t; | |
8880 | ||
8881 | fkey_map = prev_fkey_map; | |
8882 | fkey_start = prev_fkey_start; | |
8883 | fkey_end = prev_fkey_end; | |
8884 | ||
8885 | keytran_map = prev_keytran_map; | |
8886 | keytran_start = prev_keytran_start; | |
8887 | keytran_end = prev_keytran_end; | |
8888 | ||
8889 | goto replay_sequence; | |
ef8fd672 RS |
8890 | } |
8891 | } | |
284f4730 JB |
8892 | } |
8893 | ||
309b0fc8 | 8894 | if (!dummyflag) |
bc536d84 RS |
8895 | read_key_sequence_cmd = (first_binding < nmaps |
8896 | ? defs[first_binding] | |
8897 | : Qnil); | |
284f4730 | 8898 | |
cd21b839 | 8899 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 8900 | unbind_to (count, Qnil); |
07f76a14 | 8901 | |
3fe8e9a2 RS |
8902 | /* Don't downcase the last character if the caller says don't. |
8903 | Don't downcase it if the result is undefined, either. */ | |
8904 | if ((dont_downcase_last || first_binding >= nmaps) | |
8905 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
8906 | keybuf[t - 1] = original_uppercase; |
8907 | ||
07f76a14 JB |
8908 | /* Occasionally we fabricate events, perhaps by expanding something |
8909 | according to function-key-map, or by adding a prefix symbol to a | |
8910 | mouse click in the scroll bar or modeline. In this cases, return | |
8911 | the entire generated key sequence, even if we hit an unbound | |
8912 | prefix or a definition before the end. This means that you will | |
8913 | be able to push back the event properly, and also means that | |
8914 | read-key-sequence will always return a logical unit. | |
8915 | ||
8916 | Better ideas? */ | |
cca310da JB |
8917 | for (; t < mock_input; t++) |
8918 | { | |
f2647d04 DL |
8919 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8920 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8921 | echo_char (keybuf[t]); |
cca310da JB |
8922 | add_command_key (keybuf[t]); |
8923 | } | |
07f76a14 | 8924 | |
7d18f9ae RS |
8925 | |
8926 | ||
2dc00208 | 8927 | UNGCPRO; |
284f4730 JB |
8928 | return t; |
8929 | } | |
8930 | ||
a612e298 RS |
8931 | #if 0 /* This doc string is too long for some compilers. |
8932 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8933 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8934 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8935 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8936 | current local and global maps.\n\ | |
8937 | \n\ | |
c0a58692 RS |
8938 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8939 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8940 | as a continuation of the previous key.\n\ | |
284f4730 | 8941 | \n\ |
309b0fc8 RS |
8942 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8943 | convert the last event to lower case. (Normally any upper case event\n\ | |
8944 | is converted to lower case if the original event is undefined and the lower\n\ | |
8945 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
8946 | a key sequence to be defined.\n\ | |
8947 | \n\ | |
cb5df6ae JB |
8948 | A C-g typed while in this function is treated like any other character,\n\ |
8949 | and `quit-flag' is not set.\n\ | |
8950 | \n\ | |
8951 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
8952 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
8953 | of the selected window as normal.\n\ | |
ede41463 | 8954 | ""\n\ |
cb5df6ae JB |
8955 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
8956 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
8957 | or multi-click event is unbound, but the corresponding click event would\n\ |
8958 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 8959 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 8960 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
8961 | \n\ |
8962 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
8963 | lines separating windows, and scroll bars with imaginary keys\n\ |
8964 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 8965 | \n\ |
ce98e608 KH |
8966 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
8967 | function will process a switch-frame event if the user switches frames\n\ | |
8968 | before typing anything. If the user switches frames in the middle of a\n\ | |
8969 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
8970 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
8971 | \n\ |
8972 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
8973 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
8974 | `function-key-map' for more details.\n\ |
8975 | \n\ | |
8976 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
8977 | that this key sequence is being read by something that will\n\ | |
8978 | read commands one after another. It should be nil if the caller\n\ | |
8979 | will read just one key sequence.") | |
b638f328 | 8980 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
8981 | #endif |
8982 | ||
d5eecefb | 8983 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 8984 | 0) |
d5eecefb RS |
8985 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8986 | command_loop) | |
309b0fc8 | 8987 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8988 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
8989 | { |
8990 | Lisp_Object keybuf[30]; | |
8991 | register int i; | |
03cee6ae | 8992 | struct gcpro gcpro1; |
d5eecefb | 8993 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
8994 | |
8995 | if (!NILP (prompt)) | |
8996 | CHECK_STRING (prompt, 0); | |
8997 | QUIT; | |
8998 | ||
d5eecefb RS |
8999 | specbind (Qinput_method_exit_on_first_char, |
9000 | (NILP (command_loop) ? Qt : Qnil)); | |
9001 | specbind (Qinput_method_use_echo_area, | |
9002 | (NILP (command_loop) ? Qt : Qnil)); | |
9003 | ||
284f4730 JB |
9004 | bzero (keybuf, sizeof keybuf); |
9005 | GCPRO1 (keybuf[0]); | |
9006 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9007 | ||
daa37602 | 9008 | if (NILP (continue_echo)) |
6321824f RS |
9009 | { |
9010 | this_command_key_count = 0; | |
9011 | this_single_command_key_start = 0; | |
9012 | } | |
c0a58692 | 9013 | |
d0c48478 | 9014 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9015 | if (display_hourglass_p) |
9016 | cancel_hourglass (); | |
d0c48478 GM |
9017 | #endif |
9018 | ||
309b0fc8 | 9019 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9020 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9021 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9022 | |
ae18aa3b GM |
9023 | #if 0 /* The following is fine for code reading a key sequence and |
9024 | then proceeding with a lenghty compuation, but it's not good | |
9025 | for code reading keys in a loop, like an input method. */ | |
d0c48478 | 9026 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9027 | if (display_hourglass_p) |
9028 | start_hourglass (); | |
ae18aa3b | 9029 | #endif |
d0c48478 GM |
9030 | #endif |
9031 | ||
dcc408a0 RS |
9032 | if (i == -1) |
9033 | { | |
9034 | Vquit_flag = Qt; | |
9035 | QUIT; | |
9036 | } | |
284f4730 | 9037 | UNGCPRO; |
d5eecefb | 9038 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9039 | } |
e39da3d7 RS |
9040 | |
9041 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9042 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 9043 | "Like `read-key-sequence' but always return a vector.") |
3007ebfb GM |
9044 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9045 | command_loop) | |
e39da3d7 | 9046 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9047 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9048 | { |
9049 | Lisp_Object keybuf[30]; | |
9050 | register int i; | |
03cee6ae | 9051 | struct gcpro gcpro1; |
d5eecefb | 9052 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
9053 | |
9054 | if (!NILP (prompt)) | |
9055 | CHECK_STRING (prompt, 0); | |
9056 | QUIT; | |
9057 | ||
d5eecefb RS |
9058 | specbind (Qinput_method_exit_on_first_char, |
9059 | (NILP (command_loop) ? Qt : Qnil)); | |
9060 | specbind (Qinput_method_use_echo_area, | |
9061 | (NILP (command_loop) ? Qt : Qnil)); | |
9062 | ||
e39da3d7 RS |
9063 | bzero (keybuf, sizeof keybuf); |
9064 | GCPRO1 (keybuf[0]); | |
9065 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9066 | ||
9067 | if (NILP (continue_echo)) | |
9068 | { | |
9069 | this_command_key_count = 0; | |
9070 | this_single_command_key_start = 0; | |
9071 | } | |
9072 | ||
d0c48478 | 9073 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9074 | if (display_hourglass_p) |
9075 | cancel_hourglass (); | |
d0c48478 GM |
9076 | #endif |
9077 | ||
e39da3d7 RS |
9078 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9079 | prompt, ! NILP (dont_downcase_last), | |
9080 | ! NILP (can_return_switch_frame), 0); | |
9081 | ||
d0c48478 | 9082 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9083 | if (display_hourglass_p) |
9084 | start_hourglass (); | |
d0c48478 GM |
9085 | #endif |
9086 | ||
e39da3d7 RS |
9087 | if (i == -1) |
9088 | { | |
9089 | Vquit_flag = Qt; | |
9090 | QUIT; | |
9091 | } | |
9092 | UNGCPRO; | |
d5eecefb | 9093 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9094 | } |
284f4730 | 9095 | \f |
158f7532 | 9096 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
9097 | "Execute CMD as an editor command.\n\ |
9098 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
9099 | Optional second arg RECORD-FLAG non-nil\n\ | |
9100 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
9101 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
9102 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 9103 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
9104 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
9105 | a special event, so ignore the prefix argument and don't clear it.") | |
9106 | (cmd, record_flag, keys, special) | |
9107 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9108 | { |
9109 | register Lisp_Object final; | |
9110 | register Lisp_Object tem; | |
9111 | Lisp_Object prefixarg; | |
9112 | struct backtrace backtrace; | |
9113 | extern int debug_on_next_call; | |
9114 | ||
284f4730 JB |
9115 | debug_on_next_call = 0; |
9116 | ||
158f7532 RS |
9117 | if (NILP (special)) |
9118 | { | |
9119 | prefixarg = current_kboard->Vprefix_arg; | |
9120 | Vcurrent_prefix_arg = prefixarg; | |
9121 | current_kboard->Vprefix_arg = Qnil; | |
9122 | } | |
9123 | else | |
9124 | prefixarg = Qnil; | |
9125 | ||
8c18cbfb | 9126 | if (SYMBOLP (cmd)) |
284f4730 JB |
9127 | { |
9128 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9129 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9130 | { |
9131 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9132 | if (!NILP (tem)) | |
9133 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9134 | } | |
284f4730 JB |
9135 | } |
9136 | ||
01e26217 | 9137 | while (1) |
284f4730 | 9138 | { |
ffd56f97 | 9139 | final = Findirect_function (cmd); |
284f4730 JB |
9140 | |
9141 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9142 | { |
9143 | struct gcpro gcpro1, gcpro2; | |
9144 | ||
9145 | GCPRO2 (cmd, prefixarg); | |
9146 | do_autoload (final, cmd); | |
9147 | UNGCPRO; | |
9148 | } | |
284f4730 JB |
9149 | else |
9150 | break; | |
9151 | } | |
9152 | ||
8c18cbfb | 9153 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9154 | { |
9155 | /* If requested, place the macro in the command history. For | |
9156 | other sorts of commands, call-interactively takes care of | |
9157 | this. */ | |
e57d8fd8 | 9158 | if (!NILP (record_flag)) |
f4385381 RS |
9159 | { |
9160 | Vcommand_history | |
9161 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9162 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9163 | Vcommand_history); | |
9164 | ||
9165 | /* Don't keep command history around forever. */ | |
9166 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9167 | { | |
9168 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9169 | if (CONSP (tem)) | |
7539e11f | 9170 | XCDR (tem) = Qnil; |
f4385381 RS |
9171 | } |
9172 | } | |
284f4730 JB |
9173 | |
9174 | return Fexecute_kbd_macro (final, prefixarg); | |
9175 | } | |
f4385381 | 9176 | |
8c18cbfb | 9177 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9178 | { |
9179 | backtrace.next = backtrace_list; | |
9180 | backtrace_list = &backtrace; | |
9181 | backtrace.function = &Qcall_interactively; | |
9182 | backtrace.args = &cmd; | |
9183 | backtrace.nargs = 1; | |
9184 | backtrace.evalargs = 0; | |
9185 | ||
e57d8fd8 | 9186 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9187 | |
9188 | backtrace_list = backtrace.next; | |
9189 | return tem; | |
9190 | } | |
9191 | return Qnil; | |
9192 | } | |
c970a760 GM |
9193 | |
9194 | ||
284f4730 | 9195 | \f |
284f4730 JB |
9196 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
9197 | 1, 1, "P", | |
9198 | "Read function name, then read its arguments and call it.") | |
9199 | (prefixarg) | |
9200 | Lisp_Object prefixarg; | |
9201 | { | |
9202 | Lisp_Object function; | |
9203 | char buf[40]; | |
9204 | Lisp_Object saved_keys; | |
5434fce6 | 9205 | Lisp_Object bindings, value; |
214360e9 | 9206 | struct gcpro gcpro1, gcpro2; |
284f4730 | 9207 | |
b0f2a7bf KH |
9208 | saved_keys = Fvector (this_command_key_count, |
9209 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 9210 | buf[0] = 0; |
fde7aff8 | 9211 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
9212 | |
9213 | if (EQ (prefixarg, Qminus)) | |
9214 | strcpy (buf, "- "); | |
7539e11f | 9215 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9216 | strcpy (buf, "C-u "); |
7539e11f | 9217 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9218 | { |
9219 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9220 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9221 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9222 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9223 | else |
9224 | abort (); | |
9225 | } | |
8c18cbfb | 9226 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9227 | { |
9228 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9229 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9230 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9231 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9232 | else |
9233 | abort (); | |
9234 | } | |
284f4730 JB |
9235 | |
9236 | /* This isn't strictly correct if execute-extended-command | |
9237 | is bound to anything else. Perhaps it should use | |
9238 | this_command_keys? */ | |
9239 | strcat (buf, "M-x "); | |
9240 | ||
9241 | /* Prompt with buf, and then read a string, completing from and | |
9242 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9243 | any initial input. Save the command read on the extended-command |
03b4122a | 9244 | history list. */ |
284f4730 JB |
9245 | function = Fcompleting_read (build_string (buf), |
9246 | Vobarray, Qcommandp, | |
4328577a KH |
9247 | Qt, Qnil, Qextended_command_history, Qnil, |
9248 | Qnil); | |
284f4730 | 9249 | |
1f5b1641 RS |
9250 | if (STRINGP (function) && XSTRING (function)->size == 0) |
9251 | error ("No command name given"); | |
9252 | ||
1113d9db JB |
9253 | /* Set this_command_keys to the concatenation of saved_keys and |
9254 | function, followed by a RET. */ | |
284f4730 | 9255 | { |
1113d9db | 9256 | struct Lisp_String *str; |
b0f2a7bf | 9257 | Lisp_Object *keys; |
284f4730 | 9258 | int i; |
284f4730 | 9259 | |
1113d9db | 9260 | this_command_key_count = 0; |
6321824f | 9261 | this_single_command_key_start = 0; |
1113d9db | 9262 | |
b0f2a7bf KH |
9263 | keys = XVECTOR (saved_keys)->contents; |
9264 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9265 | add_command_key (keys[i]); | |
1113d9db JB |
9266 | |
9267 | str = XSTRING (function); | |
9268 | for (i = 0; i < str->size; i++) | |
301738ed | 9269 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9270 | |
301738ed | 9271 | add_command_key (make_number ('\015')); |
284f4730 JB |
9272 | } |
9273 | ||
9274 | UNGCPRO; | |
9275 | ||
0a7f1fc0 | 9276 | function = Fintern (function, Qnil); |
d8bcf58e | 9277 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9278 | Vthis_command = function; |
9279 | real_this_command = function; | |
284f4730 | 9280 | |
6526ab49 RS |
9281 | /* If enabled, show which key runs this command. */ |
9282 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9283 | && NILP (Vexecuting_macro) |
6526ab49 | 9284 | && SYMBOLP (function)) |
5434fce6 RS |
9285 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
9286 | Qt, Qnil); | |
9287 | else | |
9288 | bindings = Qnil; | |
6526ab49 | 9289 | |
5434fce6 RS |
9290 | value = Qnil; |
9291 | GCPRO2 (bindings, value); | |
9292 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9293 | |
5434fce6 | 9294 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9295 | if (!NILP (bindings) |
ee112567 KH |
9296 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9297 | Qmouse_movement))) | |
5434fce6 RS |
9298 | { |
9299 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9300 | int delay_time; |
985f9f66 | 9301 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9302 | /* This command displayed something in the echo area; |
9303 | so wait a few seconds, then display our suggestion message. */ | |
9304 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9305 | ? XINT (Vsuggest_key_bindings) : 2); | |
9306 | else | |
9307 | /* This command left the echo area empty, | |
9308 | so display our message immediately. */ | |
9309 | delay_time = 0; | |
9310 | ||
9311 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9312 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9313 | { |
5434fce6 RS |
9314 | Lisp_Object binding; |
9315 | char *newmessage; | |
985f9f66 | 9316 | int message_p = push_message (); |
c970a760 | 9317 | int count = BINDING_STACK_SIZE (); |
5434fce6 | 9318 | |
c970a760 | 9319 | record_unwind_protect (push_message_unwind, Qnil); |
5434fce6 RS |
9320 | binding = Fkey_description (bindings); |
9321 | ||
9322 | newmessage | |
9323 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 9324 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 9325 | + 100); |
3ababa60 | 9326 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 9327 | XSYMBOL (function)->name->data, |
5434fce6 | 9328 | XSTRING (binding)->data); |
301738ed RS |
9329 | message2_nolog (newmessage, |
9330 | strlen (newmessage), | |
9331 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9332 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9333 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9334 | Qnil, Qnil)) |
9335 | && message_p) | |
9336 | restore_message (); | |
9337 | ||
c970a760 | 9338 | unbind_to (count, Qnil); |
6526ab49 RS |
9339 | } |
9340 | } | |
9341 | ||
5434fce6 | 9342 | RETURN_UNGCPRO (value); |
284f4730 | 9343 | } |
6526ab49 RS |
9344 | |
9345 | /* Find the set of keymaps now active. | |
9346 | Store into *MAPS_P a vector holding the various maps | |
9347 | and return the number of them. The vector was malloc'd | |
9348 | and the caller should free it. */ | |
9349 | ||
9350 | int | |
9351 | current_active_maps (maps_p) | |
9352 | Lisp_Object **maps_p; | |
9353 | { | |
9354 | Lisp_Object *tmaps, *maps; | |
9355 | int nmaps; | |
9356 | ||
9357 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
9358 | if (!NILP (Voverriding_local_map_menu_flag)) | |
9359 | { | |
9360 | /* Yes, use them (if non-nil) as well as the global map. */ | |
9361 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
9362 | nmaps = 0; | |
9363 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
9364 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
9365 | if (!NILP (Voverriding_local_map)) | |
9366 | maps[nmaps++] = Voverriding_local_map; | |
9367 | } | |
9368 | else | |
9369 | { | |
30690496 DL |
9370 | /* No, so use major and minor mode keymaps and keymap property. */ |
9371 | int extra_maps = 2; | |
24a40fbb | 9372 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
9373 | if (!NILP (map)) |
9374 | extra_maps = 3; | |
6526ab49 | 9375 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
9376 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
9377 | * sizeof (maps[0])); | |
6526ab49 | 9378 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 9379 | if (!NILP (map)) |
9f83cf0b | 9380 | maps[nmaps++] = map; |
24a40fbb | 9381 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
6526ab49 RS |
9382 | } |
9383 | maps[nmaps++] = current_global_map; | |
9384 | ||
9385 | *maps_p = maps; | |
9386 | return nmaps; | |
9387 | } | |
284f4730 | 9388 | \f |
d9d4c147 | 9389 | /* Return nonzero if input events are pending. */ |
284f4730 | 9390 | |
dfcf069d | 9391 | int |
284f4730 JB |
9392 | detect_input_pending () |
9393 | { | |
9394 | if (!input_pending) | |
d9d4c147 KH |
9395 | get_input_pending (&input_pending, 0); |
9396 | ||
9397 | return input_pending; | |
9398 | } | |
9399 | ||
b1878f45 | 9400 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9401 | |
dfcf069d | 9402 | int |
87dd9b9b RS |
9403 | detect_input_pending_run_timers (do_display) |
9404 | int do_display; | |
d9d4c147 | 9405 | { |
87dd9b9b RS |
9406 | int old_timers_run = timers_run; |
9407 | ||
d9d4c147 KH |
9408 | if (!input_pending) |
9409 | get_input_pending (&input_pending, 1); | |
284f4730 | 9410 | |
87dd9b9b | 9411 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9412 | { |
3007ebfb | 9413 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9414 | /* The following fixes a bug when using lazy-lock with |
9415 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9416 | from an idle timer function. The symptom of the bug is that | |
9417 | the cursor sometimes doesn't become visible until the next X | |
9418 | event is processed. --gerd. */ | |
9419 | if (rif) | |
9420 | rif->flush_display (NULL); | |
9421 | } | |
87dd9b9b | 9422 | |
284f4730 JB |
9423 | return input_pending; |
9424 | } | |
9425 | ||
ffd56f97 JB |
9426 | /* This is called in some cases before a possible quit. |
9427 | It cases the next call to detect_input_pending to recompute input_pending. | |
9428 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9429 | |
9430 | void | |
ffd56f97 JB |
9431 | clear_input_pending () |
9432 | { | |
9433 | input_pending = 0; | |
9434 | } | |
9435 | ||
b1878f45 RS |
9436 | /* Return nonzero if there are pending requeued events. |
9437 | This isn't used yet. The hope is to make wait_reading_process_input | |
9438 | call it, and return return if it runs Lisp code that unreads something. | |
9439 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
9440 | to do in that case. It isn't trivial. */ | |
9441 | ||
dfcf069d | 9442 | int |
b1878f45 RS |
9443 | requeued_events_pending_p () |
9444 | { | |
9445 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9446 | } | |
9447 | ||
9448 | ||
284f4730 JB |
9449 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
9450 | "T if command input is currently available with no waiting.\n\ | |
9451 | Actually, the value is nil only if we can be sure that no input is available.") | |
9452 | () | |
9453 | { | |
24597608 | 9454 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9455 | return (Qt); |
9456 | ||
d9d4c147 KH |
9457 | get_input_pending (&input_pending, 1); |
9458 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
9459 | } |
9460 | ||
9461 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 9462 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
9463 | () |
9464 | { | |
5160df46 | 9465 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9466 | Lisp_Object val; |
9467 | ||
9468 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9469 | return Fvector (total_keys, keys); |
284f4730 JB |
9470 | else |
9471 | { | |
5160df46 JB |
9472 | val = Fvector (NUM_RECENT_KEYS, keys); |
9473 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9474 | XVECTOR (val)->contents, |
9475 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9476 | bcopy (keys, |
284f4730 JB |
9477 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9478 | recent_keys_index * sizeof (Lisp_Object)); | |
9479 | return val; | |
9480 | } | |
9481 | } | |
9482 | ||
9483 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
9484 | "Return the key sequence that invoked this command.\n\ |
9485 | The value is a string or a vector.") | |
284f4730 JB |
9486 | () |
9487 | { | |
86e5706b RS |
9488 | return make_event_array (this_command_key_count, |
9489 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9490 | } |
9491 | ||
e39da3d7 RS |
9492 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
9493 | "Return the key sequence that invoked this command, as a vector.") | |
9494 | () | |
9495 | { | |
9496 | return Fvector (this_command_key_count, | |
9497 | XVECTOR (this_command_keys)->contents); | |
9498 | } | |
9499 | ||
6321824f RS |
9500 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9501 | Sthis_single_command_keys, 0, 0, 0, | |
9502 | "Return the key sequence that invoked this command.\n\ | |
9503 | Unlike `this-command-keys', this function's value\n\ | |
9504 | does not include prefix arguments.\n\ | |
e39da3d7 | 9505 | The value is always a vector.") |
6321824f RS |
9506 | () |
9507 | { | |
e39da3d7 RS |
9508 | return Fvector (this_command_key_count |
9509 | - this_single_command_key_start, | |
9510 | (XVECTOR (this_command_keys)->contents | |
9511 | + this_single_command_key_start)); | |
6321824f RS |
9512 | } |
9513 | ||
7d18f9ae RS |
9514 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9515 | Sthis_single_command_raw_keys, 0, 0, 0, | |
9516 | "Return the raw events that were read for this command.\n\ | |
9517 | Unlike `this-single-command-keys', this function's value\n\ | |
9518 | shows the events before all translations (except for input methods).\n\ | |
9519 | The value is always a vector.") | |
9520 | () | |
9521 | { | |
9522 | return Fvector (raw_keybuf_count, | |
9523 | (XVECTOR (raw_keybuf)->contents)); | |
9524 | } | |
9525 | ||
71918b75 RS |
9526 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
9527 | Sreset_this_command_lengths, 0, 0, 0, | |
9528 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
9529 | \n\ | |
9530 | `universal-argument-other-key' rereads the event just typed.\n\ | |
9531 | It then gets translated through `function-key-map'.\n\ | |
9532 | The translated event gets included in the echo area and in\n\ | |
9533 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
9534 | That is not right.\n\ | |
9535 | \n\ | |
9536 | Calling this function directs the translated event to replace\n\ | |
9537 | the original event, so that only one version of the event actually\n\ | |
9538 | appears in the echo area and in the value of `this-command-keys.'.") | |
9539 | () | |
9540 | { | |
9541 | before_command_restore_flag = 1; | |
9542 | before_command_key_count_1 = before_command_key_count; | |
9543 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9544 | return Qnil; |
71918b75 RS |
9545 | } |
9546 | ||
82e6e5af RS |
9547 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
9548 | Sclear_this_command_keys, 0, 0, 0, | |
e27b53f6 GM |
9549 | "Clear out the vector that `this-command-keys' returns.\n\ |
9550 | Clear vector containing last 100 events.") | |
82e6e5af RS |
9551 | () |
9552 | { | |
fb0dde6c GM |
9553 | int i; |
9554 | ||
82e6e5af | 9555 | this_command_key_count = 0; |
fb0dde6c GM |
9556 | |
9557 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9558 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9559 | total_keys = 0; | |
9560 | recent_keys_index = 0; | |
82e6e5af RS |
9561 | return Qnil; |
9562 | } | |
9563 | ||
284f4730 JB |
9564 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
9565 | "Return the current depth in recursive edits.") | |
9566 | () | |
9567 | { | |
9568 | Lisp_Object temp; | |
bb9e9bed | 9569 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9570 | return temp; |
9571 | } | |
9572 | ||
9573 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
9574 | "FOpen dribble file: ", | |
9b2471df RS |
9575 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
9576 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
9577 | (file) |
9578 | Lisp_Object file; | |
9579 | { | |
6cb52def | 9580 | if (dribble) |
284f4730 | 9581 | { |
6cb52def KH |
9582 | fclose (dribble); |
9583 | dribble = 0; | |
284f4730 | 9584 | } |
6cb52def | 9585 | if (!NILP (file)) |
284f4730 JB |
9586 | { |
9587 | file = Fexpand_file_name (file, Qnil); | |
9588 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
9589 | if (dribble == 0) |
9590 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9591 | } |
9592 | return Qnil; | |
9593 | } | |
9594 | ||
9595 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
9596 | "Discard the contents of the terminal input buffer.\n\ | |
9597 | Also cancel any kbd macro being defined.") | |
9598 | () | |
9599 | { | |
c5fdd383 | 9600 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9601 | update_mode_lines++; |
9602 | ||
24597608 | 9603 | Vunread_command_events = Qnil; |
86e5706b | 9604 | unread_command_char = -1; |
284f4730 JB |
9605 | |
9606 | discard_tty_input (); | |
9607 | ||
7ee32cda | 9608 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 9609 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
9610 | input_pending = 0; |
9611 | ||
9612 | return Qnil; | |
9613 | } | |
9614 | \f | |
9615 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
9616 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
9617 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
9618 | control, run a subshell instead.\n\n\ | |
284f4730 | 9619 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
9620 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
9621 | \n\ | |
bbdc2092 RS |
9622 | Before suspending, run the normal hook `suspend-hook'.\n\ |
9623 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
9624 | \n\ |
9625 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 9626 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
9627 | (stuffstring) |
9628 | Lisp_Object stuffstring; | |
9629 | { | |
284f4730 JB |
9630 | int count = specpdl_ptr - specpdl; |
9631 | int old_height, old_width; | |
9632 | int width, height; | |
03cee6ae | 9633 | struct gcpro gcpro1; |
284f4730 JB |
9634 | |
9635 | if (!NILP (stuffstring)) | |
9636 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 9637 | |
1e95ed28 JB |
9638 | /* Run the functions in suspend-hook. */ |
9639 | if (!NILP (Vrun_hooks)) | |
9640 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9641 | |
b7d2ebbf | 9642 | GCPRO1 (stuffstring); |
ff11dfa1 | 9643 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9644 | reset_sys_modes (); |
9645 | /* sys_suspend can get an error if it tries to fork a subshell | |
9646 | and the system resources aren't available for that. */ | |
91a0da02 | 9647 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9648 | Qnil); |
284f4730 | 9649 | stuff_buffered_input (stuffstring); |
8026024c KH |
9650 | if (cannot_suspend) |
9651 | sys_subshell (); | |
9652 | else | |
9653 | sys_suspend (); | |
284f4730 JB |
9654 | unbind_to (count, Qnil); |
9655 | ||
9656 | /* Check if terminal/window size has changed. | |
9657 | Note that this is not useful when we are running directly | |
9658 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9659 | get_frame_size (&width, &height); |
284f4730 | 9660 | if (width != old_width || height != old_height) |
788f89eb | 9661 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9662 | |
1e95ed28 | 9663 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9664 | if (!NILP (Vrun_hooks)) |
9665 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9666 | |
284f4730 JB |
9667 | UNGCPRO; |
9668 | return Qnil; | |
9669 | } | |
9670 | ||
9671 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9672 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9673 | |
07a59269 | 9674 | void |
284f4730 JB |
9675 | stuff_buffered_input (stuffstring) |
9676 | Lisp_Object stuffstring; | |
9677 | { | |
284f4730 | 9678 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9679 | #ifdef BSD_SYSTEM |
284f4730 | 9680 | #ifndef BSD4_1 |
612b78ef | 9681 | register unsigned char *p; |
612b78ef | 9682 | |
8c18cbfb | 9683 | if (STRINGP (stuffstring)) |
284f4730 JB |
9684 | { |
9685 | register int count; | |
9686 | ||
9687 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9688 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9689 | while (count-- > 0) |
9690 | stuff_char (*p++); | |
9691 | stuff_char ('\n'); | |
9692 | } | |
da8f7368 | 9693 | |
284f4730 | 9694 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 9695 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9696 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9697 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9698 | { |
da8f7368 GM |
9699 | int idx; |
9700 | ||
beecf6a1 KH |
9701 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9702 | kbd_fetch_ptr = kbd_buffer; | |
9703 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9704 | stuff_char (kbd_fetch_ptr->code); | |
da8f7368 | 9705 | |
beecf6a1 | 9706 | kbd_fetch_ptr->kind = no_event; |
da8f7368 GM |
9707 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
9708 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
9709 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 9710 | } |
da8f7368 | 9711 | |
284f4730 JB |
9712 | input_pending = 0; |
9713 | #endif | |
6df54671 | 9714 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9715 | } |
9716 | \f | |
dfcf069d | 9717 | void |
ffd56f97 JB |
9718 | set_waiting_for_input (time_to_clear) |
9719 | EMACS_TIME *time_to_clear; | |
284f4730 | 9720 | { |
ffd56f97 | 9721 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9722 | |
9723 | /* Tell interrupt_signal to throw back to read_char, */ | |
9724 | waiting_for_input = 1; | |
9725 | ||
9726 | /* If interrupt_signal was called before and buffered a C-g, | |
9727 | make it run again now, to avoid timing error. */ | |
9728 | if (!NILP (Vquit_flag)) | |
9729 | quit_throw_to_read_char (); | |
284f4730 JB |
9730 | } |
9731 | ||
07a59269 | 9732 | void |
284f4730 JB |
9733 | clear_waiting_for_input () |
9734 | { | |
9735 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9736 | waiting_for_input = 0; | |
ffd56f97 | 9737 | input_available_clear_time = 0; |
284f4730 JB |
9738 | } |
9739 | ||
9740 | /* This routine is called at interrupt level in response to C-G. | |
d4e68eea GM |
9741 | |
9742 | If interrupt_input, this is the handler for SIGINT. Otherwise, it | |
9743 | is called from kbd_buffer_store_event, in handling SIGIO or | |
9744 | SIGTINT. | |
284f4730 | 9745 | |
d4e68eea GM |
9746 | If `waiting_for_input' is non zero, then unless `echoing' is |
9747 | nonzero, immediately throw back to read_char. | |
284f4730 | 9748 | |
d4e68eea GM |
9749 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
9750 | eval to throw, when it gets a chance. If quit-flag is already | |
9751 | non-nil, it stops the job right away. */ | |
284f4730 JB |
9752 | |
9753 | SIGTYPE | |
91c049d4 RS |
9754 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9755 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9756 | { |
9757 | char c; | |
9758 | /* Must preserve main program's value of errno. */ | |
9759 | int old_errno = errno; | |
788f89eb | 9760 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9761 | |
5970a8cb | 9762 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9763 | if (!read_socket_hook && NILP (Vwindow_system)) |
9764 | { | |
9765 | /* USG systems forget handlers when they are used; | |
9766 | must reestablish each time */ | |
9767 | signal (SIGINT, interrupt_signal); | |
9768 | signal (SIGQUIT, interrupt_signal); | |
9769 | } | |
284f4730 JB |
9770 | #endif /* USG */ |
9771 | ||
9772 | cancel_echoing (); | |
9773 | ||
31e4e97b | 9774 | if (!NILP (Vquit_flag) |
788f89eb | 9775 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9776 | { |
31e4e97b EZ |
9777 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9778 | another SIGINT, it might be harmful due to non-reentrancy | |
9779 | in I/O functions. */ | |
9780 | sigblock (sigmask (SIGINT)); | |
9781 | ||
284f4730 JB |
9782 | fflush (stdout); |
9783 | reset_sys_modes (); | |
31e4e97b | 9784 | |
284f4730 JB |
9785 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9786 | /* | |
9787 | * On systems which can suspend the current process and return to the original | |
9788 | * shell, this command causes the user to end up back at the shell. | |
9789 | * The "Auto-save" and "Abort" questions are not asked until | |
9790 | * the user elects to return to emacs, at which point he can save the current | |
9791 | * job and either dump core or continue. | |
9792 | */ | |
9793 | sys_suspend (); | |
9794 | #else | |
9795 | #ifdef VMS | |
9796 | if (sys_suspend () == -1) | |
9797 | { | |
9798 | printf ("Not running as a subprocess;\n"); | |
9799 | printf ("you can continue or abort.\n"); | |
9800 | } | |
9801 | #else /* not VMS */ | |
9802 | /* Perhaps should really fork an inferior shell? | |
9803 | But that would not provide any way to get back | |
9804 | to the original shell, ever. */ | |
9805 | printf ("No support for stopping a process on this operating system;\n"); | |
9806 | printf ("you can continue or abort.\n"); | |
9807 | #endif /* not VMS */ | |
9808 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9809 | #ifdef MSDOS |
9810 | /* We must remain inside the screen area when the internal terminal | |
9811 | is used. Note that [Enter] is not echoed by dos. */ | |
9812 | cursor_to (0, 0); | |
9813 | #endif | |
118d6ca9 RS |
9814 | /* It doesn't work to autosave while GC is in progress; |
9815 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9816 | if (!gc_in_progress) | |
9fd7d808 | 9817 | { |
118d6ca9 RS |
9818 | printf ("Auto-save? (y or n) "); |
9819 | fflush (stdout); | |
9820 | if (((c = getchar ()) & ~040) == 'Y') | |
9821 | { | |
9822 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9823 | #ifdef MSDOS |
118d6ca9 | 9824 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9825 | #else /* not MSDOS */ |
118d6ca9 | 9826 | printf ("Auto-save done\n"); |
80e4aa30 | 9827 | #endif /* not MSDOS */ |
118d6ca9 RS |
9828 | } |
9829 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9830 | } |
118d6ca9 RS |
9831 | else |
9832 | { | |
9833 | /* During GC, it must be safe to reenable quitting again. */ | |
9834 | Vinhibit_quit = Qnil; | |
9835 | #ifdef MSDOS | |
9836 | printf ("\r\n"); | |
9837 | #endif /* not MSDOS */ | |
9838 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9839 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9840 | fflush (stdout); | |
9841 | } | |
9842 | ||
80e4aa30 RS |
9843 | #ifdef MSDOS |
9844 | printf ("\r\nAbort? (y or n) "); | |
9845 | #else /* not MSDOS */ | |
284f4730 JB |
9846 | #ifdef VMS |
9847 | printf ("Abort (and enter debugger)? (y or n) "); | |
9848 | #else /* not VMS */ | |
9849 | printf ("Abort (and dump core)? (y or n) "); | |
9850 | #endif /* not VMS */ | |
80e4aa30 | 9851 | #endif /* not MSDOS */ |
284f4730 JB |
9852 | fflush (stdout); |
9853 | if (((c = getchar ()) & ~040) == 'Y') | |
9854 | abort (); | |
9855 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9856 | #ifdef MSDOS |
9857 | printf ("\r\nContinuing...\r\n"); | |
9858 | #else /* not MSDOS */ | |
284f4730 | 9859 | printf ("Continuing...\n"); |
80e4aa30 | 9860 | #endif /* not MSDOS */ |
284f4730 JB |
9861 | fflush (stdout); |
9862 | init_sys_modes (); | |
31e4e97b | 9863 | sigfree (); |
284f4730 JB |
9864 | } |
9865 | else | |
9866 | { | |
9867 | /* If executing a function that wants to be interrupted out of | |
9868 | and the user has not deferred quitting by binding `inhibit-quit' | |
9869 | then quit right away. */ | |
9870 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9871 | { | |
e39da3d7 RS |
9872 | struct gl_state_s saved; |
9873 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9874 | ||
284f4730 JB |
9875 | immediate_quit = 0; |
9876 | sigfree (); | |
e39da3d7 RS |
9877 | saved = gl_state; |
9878 | GCPRO4 (saved.object, saved.global_code, | |
9879 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9880 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9881 | gl_state = saved; |
9882 | UNGCPRO; | |
284f4730 JB |
9883 | } |
9884 | else | |
9885 | /* Else request quit when it's safe */ | |
9886 | Vquit_flag = Qt; | |
9887 | } | |
9888 | ||
9889 | if (waiting_for_input && !echoing) | |
9890 | quit_throw_to_read_char (); | |
9891 | ||
9892 | errno = old_errno; | |
9893 | } | |
9894 | ||
9895 | /* Handle a C-g by making read_char return C-g. */ | |
9896 | ||
07a59269 | 9897 | void |
284f4730 JB |
9898 | quit_throw_to_read_char () |
9899 | { | |
284f4730 JB |
9900 | sigfree (); |
9901 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9902 | clear_waiting_for_input (); |
284f4730 JB |
9903 | input_pending = 0; |
9904 | ||
24597608 | 9905 | Vunread_command_events = Qnil; |
86e5706b | 9906 | unread_command_char = -1; |
284f4730 | 9907 | |
087feab3 RS |
9908 | #if 0 /* Currently, sit_for is called from read_char without turning |
9909 | off polling. And that can call set_waiting_for_input. | |
9910 | It seems to be harmless. */ | |
e6b01c14 JB |
9911 | #ifdef POLL_FOR_INPUT |
9912 | /* May be > 1 if in recursive minibuffer. */ | |
9913 | if (poll_suppress_count == 0) | |
9914 | abort (); | |
9915 | #endif | |
087feab3 | 9916 | #endif |
4c52b668 | 9917 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9918 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 9919 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 9920 | 0, 0); |
e6b01c14 | 9921 | |
284f4730 JB |
9922 | _longjmp (getcjmp, 1); |
9923 | } | |
9924 | \f | |
9925 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9926 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9927 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9928 | nil means use CBREAK mode.\n\ | |
9929 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9930 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9931 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9932 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9933 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9934 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9935 | See also `current-input-mode'.") | |
284f4730 JB |
9936 | (interrupt, flow, meta, quit) |
9937 | Lisp_Object interrupt, flow, meta, quit; | |
9938 | { | |
9939 | if (!NILP (quit) | |
8c18cbfb | 9940 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9941 | error ("set-input-mode: QUIT must be an ASCII character"); |
9942 | ||
9943 | #ifdef POLL_FOR_INPUT | |
9944 | stop_polling (); | |
9945 | #endif | |
284f4730 | 9946 | |
07de30b9 | 9947 | #ifndef DOS_NT |
2ee250ec | 9948 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 9949 | reset_sys_modes (); |
2ee250ec RS |
9950 | #endif |
9951 | ||
284f4730 JB |
9952 | #ifdef SIGIO |
9953 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 9954 | if (read_socket_hook) |
9a0f60bb KH |
9955 | { |
9956 | /* When using X, don't give the user a real choice, | |
9957 | because we haven't implemented the mechanisms to support it. */ | |
9958 | #ifdef NO_SOCK_SIGIO | |
9959 | interrupt_input = 0; | |
9960 | #else /* not NO_SOCK_SIGIO */ | |
9961 | interrupt_input = 1; | |
284f4730 | 9962 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
9963 | } |
9964 | else | |
284f4730 JB |
9965 | interrupt_input = !NILP (interrupt); |
9966 | #else /* not SIGIO */ | |
9967 | interrupt_input = 0; | |
9968 | #endif /* not SIGIO */ | |
9a0f60bb | 9969 | |
284f4730 JB |
9970 | /* Our VMS input only works by interrupts, as of now. */ |
9971 | #ifdef VMS | |
9972 | interrupt_input = 1; | |
9973 | #endif | |
9a0f60bb | 9974 | |
284f4730 | 9975 | flow_control = !NILP (flow); |
b04904fb RS |
9976 | if (NILP (meta)) |
9977 | meta_key = 0; | |
9978 | else if (EQ (meta, Qt)) | |
9979 | meta_key = 1; | |
9980 | else | |
9981 | meta_key = 2; | |
284f4730 JB |
9982 | if (!NILP (quit)) |
9983 | /* Don't let this value be out of range. */ | |
9984 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
9985 | ||
07de30b9 | 9986 | #ifndef DOS_NT |
284f4730 | 9987 | init_sys_modes (); |
2ee250ec | 9988 | #endif |
34f04431 RS |
9989 | |
9990 | #ifdef POLL_FOR_INPUT | |
9991 | poll_suppress_count = 1; | |
9992 | start_polling (); | |
9993 | #endif | |
284f4730 JB |
9994 | return Qnil; |
9995 | } | |
80645119 JB |
9996 | |
9997 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
9998 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
9999 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
10000 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
10001 | nil, Emacs is using CBREAK mode.\n\ | |
10002 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
10003 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
10004 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
10005 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
10006 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
10007 | all 8 bits as the character code.\n\ | |
80645119 JB |
10008 | QUIT is the character Emacs currently uses to quit.\n\ |
10009 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 10010 | `set-input-mode'.") |
80645119 JB |
10011 | () |
10012 | { | |
10013 | Lisp_Object val[4]; | |
10014 | ||
10015 | val[0] = interrupt_input ? Qt : Qnil; | |
10016 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10017 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10018 | XSETFASTINT (val[3], quit_char); |
80645119 | 10019 | |
bf673a7a | 10020 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10021 | } |
10022 | ||
284f4730 | 10023 | \f |
6c6083a9 | 10024 | /* |
c5fdd383 | 10025 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10026 | */ |
10027 | void | |
c5fdd383 KH |
10028 | init_kboard (kb) |
10029 | KBOARD *kb; | |
6c6083a9 | 10030 | { |
217258d5 | 10031 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10032 | kb->Vlast_command = Qnil; |
75045dcb | 10033 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10034 | kb->Vprefix_arg = Qnil; |
75045dcb | 10035 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10036 | kb->kbd_queue = Qnil; |
10037 | kb->kbd_queue_has_data = 0; | |
10038 | kb->immediate_echo = 0; | |
10039 | kb->echoptr = kb->echobuf; | |
10040 | kb->echo_after_prompt = -1; | |
10041 | kb->kbd_macro_buffer = 0; | |
10042 | kb->kbd_macro_bufsize = 0; | |
10043 | kb->defining_kbd_macro = Qnil; | |
10044 | kb->Vlast_kbd_macro = Qnil; | |
10045 | kb->reference_count = 0; | |
7c97ffdc | 10046 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10047 | kb->system_key_syms = Qnil; |
9ba47203 | 10048 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10049 | } |
10050 | ||
10051 | /* | |
c5fdd383 | 10052 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10053 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10054 | * it a second time. |
10055 | */ | |
e50b8090 | 10056 | static void |
c5fdd383 KH |
10057 | wipe_kboard (kb) |
10058 | KBOARD *kb; | |
6c6083a9 | 10059 | { |
c5fdd383 KH |
10060 | if (kb->kbd_macro_buffer) |
10061 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10062 | } |
10063 | ||
e50b8090 | 10064 | #ifdef MULTI_KBOARD |
a122a38e GM |
10065 | |
10066 | /* Free KB and memory referenced from it. */ | |
10067 | ||
e50b8090 KH |
10068 | void |
10069 | delete_kboard (kb) | |
a122a38e | 10070 | KBOARD *kb; |
e50b8090 KH |
10071 | { |
10072 | KBOARD **kbp; | |
a122a38e | 10073 | |
e50b8090 KH |
10074 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10075 | if (*kbp == NULL) | |
10076 | abort (); | |
10077 | *kbp = kb->next_kboard; | |
a122a38e GM |
10078 | |
10079 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10080 | if (kb == current_kboard |
10081 | && FRAMEP (selected_frame) | |
10082 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10083 | { |
18f534df | 10084 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10085 | if (current_kboard == kb) |
10086 | abort (); | |
10087 | } | |
10088 | ||
e50b8090 KH |
10089 | wipe_kboard (kb); |
10090 | xfree (kb); | |
10091 | } | |
a122a38e GM |
10092 | |
10093 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10094 | |
dfcf069d | 10095 | void |
284f4730 JB |
10096 | init_keyboard () |
10097 | { | |
284f4730 JB |
10098 | /* This is correct before outermost invocation of the editor loop */ |
10099 | command_loop_level = -1; | |
10100 | immediate_quit = 0; | |
10101 | quit_char = Ctl ('g'); | |
24597608 | 10102 | Vunread_command_events = Qnil; |
86e5706b | 10103 | unread_command_char = -1; |
87dd9b9b | 10104 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10105 | total_keys = 0; |
9deb415a | 10106 | recent_keys_index = 0; |
beecf6a1 KH |
10107 | kbd_fetch_ptr = kbd_buffer; |
10108 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10109 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10110 | #ifdef HAVE_MOUSE |
a9d77f1f | 10111 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10112 | #endif |
284f4730 JB |
10113 | input_pending = 0; |
10114 | ||
4c52b668 KH |
10115 | /* This means that command_loop_1 won't try to select anything the first |
10116 | time through. */ | |
10117 | internal_last_event_frame = Qnil; | |
10118 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10119 | |
c5fdd383 | 10120 | #ifdef MULTI_KBOARD |
aaca43a1 | 10121 | current_kboard = initial_kboard; |
6c6083a9 | 10122 | #endif |
aaca43a1 | 10123 | wipe_kboard (current_kboard); |
c5fdd383 | 10124 | init_kboard (current_kboard); |
07d2b8de | 10125 | |
7a80a6f6 | 10126 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10127 | { |
10128 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10129 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10130 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10131 | SIGQUIT and we can't tell which one it will give us. */ | |
10132 | signal (SIGQUIT, interrupt_signal); | |
10133 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10134 | } |
284f4730 JB |
10135 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10136 | #ifdef SIGIO | |
7a80a6f6 RS |
10137 | if (!noninteractive) |
10138 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10139 | #endif /* SIGIO */ |
284f4730 JB |
10140 | |
10141 | /* Use interrupt input by default, if it works and noninterrupt input | |
10142 | has deficiencies. */ | |
10143 | ||
10144 | #ifdef INTERRUPT_INPUT | |
10145 | interrupt_input = 1; | |
10146 | #else | |
10147 | interrupt_input = 0; | |
10148 | #endif | |
10149 | ||
10150 | /* Our VMS input only works by interrupts, as of now. */ | |
10151 | #ifdef VMS | |
10152 | interrupt_input = 1; | |
10153 | #endif | |
10154 | ||
10155 | sigfree (); | |
10156 | dribble = 0; | |
10157 | ||
10158 | if (keyboard_init_hook) | |
10159 | (*keyboard_init_hook) (); | |
10160 | ||
10161 | #ifdef POLL_FOR_INPUT | |
10162 | poll_suppress_count = 1; | |
10163 | start_polling (); | |
10164 | #endif | |
10165 | } | |
10166 | ||
df0f2ba1 | 10167 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10168 | event header symbols and put properties on them. */ |
10169 | struct event_head { | |
10170 | Lisp_Object *var; | |
10171 | char *name; | |
10172 | Lisp_Object *kind; | |
10173 | }; | |
10174 | ||
10175 | struct event_head head_table[] = { | |
7b4aedb9 | 10176 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 10177 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 10178 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 10179 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
10180 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
10181 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
10182 | }; |
10183 | ||
dfcf069d | 10184 | void |
284f4730 JB |
10185 | syms_of_keyboard () |
10186 | { | |
f0c1cc56 GM |
10187 | Vpre_help_message = Qnil; |
10188 | staticpro (&Vpre_help_message); | |
10189 | ||
8e1e4240 GM |
10190 | Vlispy_mouse_stem = build_string ("mouse"); |
10191 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10192 | |
9ea173e8 | 10193 | /* Tool-bars. */ |
7ee32cda GM |
10194 | QCimage = intern (":image"); |
10195 | staticpro (&QCimage); | |
10196 | ||
10197 | staticpro (&Qhelp_echo); | |
10198 | Qhelp_echo = intern ("help-echo"); | |
10199 | ||
e8886a1d RS |
10200 | staticpro (&item_properties); |
10201 | item_properties = Qnil; | |
10202 | ||
9ea173e8 GM |
10203 | staticpro (&tool_bar_item_properties); |
10204 | tool_bar_item_properties = Qnil; | |
10205 | staticpro (&tool_bar_items_vector); | |
10206 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10207 | |
d5eecefb RS |
10208 | staticpro (&real_this_command); |
10209 | real_this_command = Qnil; | |
10210 | ||
d925fb39 RS |
10211 | Qtimer_event_handler = intern ("timer-event-handler"); |
10212 | staticpro (&Qtimer_event_handler); | |
10213 | ||
2e894dab RS |
10214 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10215 | staticpro (&Qdisabled_command_hook); | |
10216 | ||
284f4730 JB |
10217 | Qself_insert_command = intern ("self-insert-command"); |
10218 | staticpro (&Qself_insert_command); | |
10219 | ||
10220 | Qforward_char = intern ("forward-char"); | |
10221 | staticpro (&Qforward_char); | |
10222 | ||
10223 | Qbackward_char = intern ("backward-char"); | |
10224 | staticpro (&Qbackward_char); | |
10225 | ||
10226 | Qdisabled = intern ("disabled"); | |
10227 | staticpro (&Qdisabled); | |
10228 | ||
e58aa385 RS |
10229 | Qundefined = intern ("undefined"); |
10230 | staticpro (&Qundefined); | |
10231 | ||
86e5706b RS |
10232 | Qpre_command_hook = intern ("pre-command-hook"); |
10233 | staticpro (&Qpre_command_hook); | |
10234 | ||
10235 | Qpost_command_hook = intern ("post-command-hook"); | |
10236 | staticpro (&Qpost_command_hook); | |
10237 | ||
59aadc81 RS |
10238 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10239 | staticpro (&Qpost_command_idle_hook); | |
10240 | ||
3ef14e46 RS |
10241 | Qdeferred_action_function = intern ("deferred-action-function"); |
10242 | staticpro (&Qdeferred_action_function); | |
10243 | ||
40932d1a RS |
10244 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10245 | staticpro (&Qcommand_hook_internal); | |
10246 | ||
284f4730 JB |
10247 | Qfunction_key = intern ("function-key"); |
10248 | staticpro (&Qfunction_key); | |
13b5e56c | 10249 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10250 | staticpro (&Qmouse_click); |
07de30b9 GV |
10251 | #ifdef WINDOWSNT |
10252 | Qmouse_wheel = intern ("mouse-wheel"); | |
10253 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
10254 | Qlanguage_change = intern ("language-change"); |
10255 | staticpro (&Qlanguage_change); | |
07de30b9 | 10256 | #endif |
a24dc617 RS |
10257 | Qdrag_n_drop = intern ("drag-n-drop"); |
10258 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10259 | |
5bf68f6e AS |
10260 | Qusr1_signal = intern ("usr1-signal"); |
10261 | staticpro (&Qusr1_signal); | |
10262 | Qusr2_signal = intern ("usr2-signal"); | |
10263 | staticpro (&Qusr2_signal); | |
10264 | ||
598a9fa7 JB |
10265 | Qmenu_enable = intern ("menu-enable"); |
10266 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10267 | Qmenu_alias = intern ("menu-alias"); |
10268 | staticpro (&Qmenu_alias); | |
10269 | QCenable = intern (":enable"); | |
10270 | staticpro (&QCenable); | |
10271 | QCvisible = intern (":visible"); | |
10272 | staticpro (&QCvisible); | |
7ee32cda GM |
10273 | QChelp = intern (":help"); |
10274 | staticpro (&QChelp); | |
e8886a1d RS |
10275 | QCfilter = intern (":filter"); |
10276 | staticpro (&QCfilter); | |
10277 | QCbutton = intern (":button"); | |
10278 | staticpro (&QCbutton); | |
74c1de23 RS |
10279 | QCkeys = intern (":keys"); |
10280 | staticpro (&QCkeys); | |
10281 | QCkey_sequence = intern (":key-sequence"); | |
10282 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10283 | QCtoggle = intern (":toggle"); |
10284 | staticpro (&QCtoggle); | |
10285 | QCradio = intern (":radio"); | |
10286 | staticpro (&QCradio); | |
598a9fa7 | 10287 | |
284f4730 JB |
10288 | Qmode_line = intern ("mode-line"); |
10289 | staticpro (&Qmode_line); | |
e5d77022 JB |
10290 | Qvertical_line = intern ("vertical-line"); |
10291 | staticpro (&Qvertical_line); | |
3c370943 JB |
10292 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10293 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10294 | Qmenu_bar = intern ("menu-bar"); |
10295 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10296 | |
10297 | Qabove_handle = intern ("above-handle"); | |
10298 | staticpro (&Qabove_handle); | |
10299 | Qhandle = intern ("handle"); | |
10300 | staticpro (&Qhandle); | |
10301 | Qbelow_handle = intern ("below-handle"); | |
10302 | staticpro (&Qbelow_handle); | |
db08707d RS |
10303 | Qup = intern ("up"); |
10304 | staticpro (&Qup); | |
10305 | Qdown = intern ("down"); | |
10306 | staticpro (&Qdown); | |
7ee32cda GM |
10307 | Qtop = intern ("top"); |
10308 | staticpro (&Qtop); | |
10309 | Qbottom = intern ("bottom"); | |
10310 | staticpro (&Qbottom); | |
10311 | Qend_scroll = intern ("end-scroll"); | |
10312 | staticpro (&Qend_scroll); | |
eef28553 SM |
10313 | Qratio = intern ("ratio"); |
10314 | staticpro (&Qratio); | |
284f4730 | 10315 | |
cd21b839 | 10316 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10317 | staticpro (&Qevent_kind); |
88cb0656 JB |
10318 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10319 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10320 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10321 | staticpro (&Qevent_symbol_element_mask); | |
10322 | Qmodifier_cache = intern ("modifier-cache"); | |
10323 | staticpro (&Qmodifier_cache); | |
284f4730 | 10324 | |
48e416d4 RS |
10325 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10326 | staticpro (&Qrecompute_lucid_menubar); | |
10327 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10328 | staticpro (&Qactivate_menubar_hook); | |
10329 | ||
f4eef8b4 RS |
10330 | Qpolling_period = intern ("polling-period"); |
10331 | staticpro (&Qpolling_period); | |
10332 | ||
7d18f9ae RS |
10333 | Qinput_method_function = intern ("input-method-function"); |
10334 | staticpro (&Qinput_method_function); | |
10335 | ||
d5eecefb RS |
10336 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10337 | staticpro (&Qinput_method_exit_on_first_char); | |
10338 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10339 | staticpro (&Qinput_method_use_echo_area); | |
10340 | ||
10341 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10342 | Fset (Qinput_method_use_echo_area, Qnil); | |
10343 | ||
e18dfbf4 KR |
10344 | last_point_position_buffer = Qnil; |
10345 | ||
284f4730 JB |
10346 | { |
10347 | struct event_head *p; | |
10348 | ||
10349 | for (p = head_table; | |
10350 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10351 | p++) | |
10352 | { | |
10353 | *p->var = intern (p->name); | |
10354 | staticpro (p->var); | |
10355 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10356 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10357 | } |
10358 | } | |
10359 | ||
8e1e4240 | 10360 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10361 | staticpro (&button_down_location); |
8e1e4240 GM |
10362 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10363 | staticpro (&mouse_syms); | |
88cb0656 JB |
10364 | |
10365 | { | |
10366 | int i; | |
10367 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10368 | ||
10369 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10370 | for (i = 0; i < len; i++) | |
86e5706b RS |
10371 | if (modifier_names[i]) |
10372 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10373 | staticpro (&modifier_symbols); |
10374 | } | |
10375 | ||
9deb415a JB |
10376 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10377 | staticpro (&recent_keys); | |
10378 | ||
6569cc8d | 10379 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10380 | staticpro (&this_command_keys); |
6569cc8d | 10381 | |
7d18f9ae RS |
10382 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10383 | staticpro (&raw_keybuf); | |
10384 | ||
03b4122a BF |
10385 | Qextended_command_history = intern ("extended-command-history"); |
10386 | Fset (Qextended_command_history, Qnil); | |
10387 | staticpro (&Qextended_command_history); | |
10388 | ||
da8f7368 GM |
10389 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10390 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10391 | |
24597608 RS |
10392 | accent_key_syms = Qnil; |
10393 | staticpro (&accent_key_syms); | |
10394 | ||
284f4730 JB |
10395 | func_key_syms = Qnil; |
10396 | staticpro (&func_key_syms); | |
10397 | ||
07de30b9 GV |
10398 | #ifdef WINDOWSNT |
10399 | mouse_wheel_syms = Qnil; | |
10400 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
10401 | |
10402 | drag_n_drop_syms = Qnil; | |
10403 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
10404 | #endif |
10405 | ||
cd21b839 JB |
10406 | unread_switch_frame = Qnil; |
10407 | staticpro (&unread_switch_frame); | |
10408 | ||
fe412364 EN |
10409 | internal_last_event_frame = Qnil; |
10410 | staticpro (&internal_last_event_frame); | |
10411 | ||
10412 | read_key_sequence_cmd = Qnil; | |
10413 | staticpro (&read_key_sequence_cmd); | |
10414 | ||
759860a6 RS |
10415 | menu_bar_one_keymap_changed_items = Qnil; |
10416 | staticpro (&menu_bar_one_keymap_changed_items); | |
10417 | ||
a1706c30 | 10418 | defsubr (&Sevent_convert_list); |
284f4730 | 10419 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10420 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10421 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10422 | #ifdef HAVE_MOUSE |
284f4730 | 10423 | defsubr (&Strack_mouse); |
2eb6bfbe | 10424 | #endif |
284f4730 JB |
10425 | defsubr (&Sinput_pending_p); |
10426 | defsubr (&Scommand_execute); | |
10427 | defsubr (&Srecent_keys); | |
10428 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10429 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10430 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10431 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10432 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10433 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10434 | defsubr (&Ssuspend_emacs); |
10435 | defsubr (&Sabort_recursive_edit); | |
10436 | defsubr (&Sexit_recursive_edit); | |
10437 | defsubr (&Srecursion_depth); | |
10438 | defsubr (&Stop_level); | |
10439 | defsubr (&Sdiscard_input); | |
10440 | defsubr (&Sopen_dribble_file); | |
10441 | defsubr (&Sset_input_mode); | |
80645119 | 10442 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10443 | defsubr (&Sexecute_extended_command); |
10444 | ||
284f4730 | 10445 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
10446 | "Last input event that was part of a command."); |
10447 | ||
186cf719 | 10448 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 10449 | "Last input event that was part of a command."); |
284f4730 | 10450 | |
7d6de002 | 10451 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 10452 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
10453 | Mouse menus give back keys that don't look like mouse events;\n\ |
10454 | this variable holds the actual mouse event that led to the menu,\n\ | |
10455 | so that you can determine whether the command was run by mouse or not."); | |
10456 | ||
284f4730 | 10457 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
10458 | "Last input event."); |
10459 | ||
186cf719 | 10460 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 10461 | "Last input event."); |
284f4730 | 10462 | |
24597608 | 10463 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
10464 | "List of events to be read as the command input.\n\ |
10465 | These events are processed first, before actual keyboard input."); | |
10466 | Vunread_command_events = Qnil; | |
284f4730 | 10467 | |
86e5706b RS |
10468 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
10469 | "If not -1, an object to be read as next command input event."); | |
10470 | ||
7d18f9ae RS |
10471 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
10472 | "List of events to be processed as input by input methods.\n\ | |
10473 | These events are processed after `unread-command-events', but\n\ | |
10474 | before actual keyboard input."); | |
10475 | Vunread_post_input_method_events = Qnil; | |
10476 | ||
10477 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
10478 | "List of events to be processed as input by input methods.\n\ | |
10479 | These events are processed after `unread-command-events', but\n\ | |
10480 | before actual keyboard input."); | |
10481 | Vunread_input_method_events = Qnil; | |
10482 | ||
284f4730 | 10483 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
10484 | "Meta-prefix character code.\n\ |
10485 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 10486 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10487 | |
6c7178b9 | 10488 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
10489 | "The last command executed.\n\ |
10490 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
10491 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
10492 | command.\n\ | |
18f29056 RS |
10493 | \n\ |
10494 | The value `mode-exit' is special; it means that the previous command\n\ | |
10495 | read an event that told it to exit, and it did so and unread that event.\n\ | |
10496 | In other words, the present command is the event that made the previous\n\ | |
10497 | command exit.\n\ | |
10498 | \n\ | |
10499 | The value `kill-region' is special; it means that the previous command\n\ | |
10500 | was a kill command."); | |
284f4730 | 10501 | |
75045dcb RS |
10502 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
10503 | "Same as `last-command', but never altered by Lisp code."); | |
10504 | ||
d5eecefb | 10505 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
10506 | "The command now being executed.\n\ |
10507 | The command can set this variable; whatever is put here\n\ | |
10508 | will be in `last-command' during the following command."); | |
d5eecefb | 10509 | Vthis_command = Qnil; |
284f4730 JB |
10510 | |
10511 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
dace7f4e | 10512 | "*Number of input events between auto-saves.\n\ |
284f4730 JB |
10513 | Zero means disable autosaving due to number of characters typed."); |
10514 | auto_save_interval = 300; | |
10515 | ||
10516 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
10517 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
10518 | Zero or nil means disable auto-saving due to idleness.\n\ |
10519 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 10520 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 10521 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10522 | |
39aab679 | 10523 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
f2647d04 DL |
10524 | "*Nonzero means echo unfinished commands after this many seconds of pause.\n\ |
10525 | The value may be integer or floating point."); | |
39aab679 | 10526 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10527 | |
10528 | DEFVAR_INT ("polling-period", &polling_period, | |
10529 | "*Interval between polling for input during Lisp execution.\n\ | |
10530 | The reason for polling is to make C-g work to stop a running program.\n\ | |
10531 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
10532 | Polling is automatically disabled in all other cases."); | |
10533 | polling_period = 2; | |
df0f2ba1 | 10534 | |
564dc952 | 10535 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 10536 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
10537 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
10538 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 10539 | by position only."); |
aab06933 | 10540 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10541 | |
222d557c GM |
10542 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
10543 | "*Maximum mouse movement between clicks to make a double-click.\n\ | |
10544 | Value is the number of pixels the mouse may ha moved horizontally or\n\ | |
10545 | vertically between two clicks to make a double-click."); | |
10546 | double_click_fuzz = 3; | |
10547 | ||
03361bcc RS |
10548 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
10549 | "*Non-nil means inhibit local map menu bar menus."); | |
10550 | inhibit_local_menu_bar_menus = 0; | |
10551 | ||
284f4730 | 10552 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 10553 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
10554 | This includes key sequences read from keyboard macros.\n\ |
10555 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
10556 | num_input_keys = 0; |
10557 | ||
c43b1734 RS |
10558 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
10559 | "Number of input events read from the keyboard so far.\n\ | |
10560 | This does not include events generated by keyboard macros."); | |
10561 | num_nonmacro_input_events = 0; | |
fa90970d | 10562 | |
4c52b668 KH |
10563 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
10564 | "The frame in which the most recently read event occurred.\n\ | |
10565 | If the last event came from a keyboard macro, this is set to `macro'."); | |
10566 | Vlast_event_frame = Qnil; | |
10567 | ||
fa90970d RS |
10568 | /* This variable is set up in sysdep.c. */ |
10569 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
10570 | "The ERASE character as set by the user with stty."); | |
10571 | ||
7e85b935 | 10572 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
10573 | "Character to recognize as meaning Help.\n\ |
10574 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
10575 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 10576 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10577 | |
ecb7cb34 KH |
10578 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
10579 | "List of input events to recognize as meaning Help.\n\ | |
10580 | These work just like the value of `help-char' (see that)."); | |
10581 | Vhelp_event_list = Qnil; | |
10582 | ||
284f4730 | 10583 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 10584 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
10585 | If the form returns a string, that string is displayed.\n\ |
10586 | If `help-form' is nil, the help char is not recognized."); | |
10587 | Vhelp_form = Qnil; | |
10588 | ||
7e85b935 RS |
10589 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
10590 | "Command to run when `help-char' character follows a prefix key.\n\ | |
10591 | This command is used only when there is no actual binding\n\ | |
10592 | for that character after that prefix key."); | |
10593 | Vprefix_help_command = Qnil; | |
10594 | ||
284f4730 JB |
10595 | DEFVAR_LISP ("top-level", &Vtop_level, |
10596 | "Form to evaluate when Emacs starts up.\n\ | |
10597 | Useful to set before you dump a modified Emacs."); | |
10598 | Vtop_level = Qnil; | |
10599 | ||
10600 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 10601 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 10602 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
10603 | The value may be a string, a vector, or a char-table.\n\ |
10604 | If it is a string or vector of length N,\n\ | |
10605 | character codes N and up are untranslated.\n\ | |
10606 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
10607 | Vkeyboard_translate_table = Qnil; |
10608 | ||
8026024c | 10609 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
10610 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
10611 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
10612 | cannot_suspend = 0; |
10613 | ||
284f4730 | 10614 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 10615 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 10616 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
10617 | for elements that have prompt strings.\n\ |
10618 | The menu is displayed on the screen\n\ | |
10619 | if X menus were enabled at configuration\n\ | |
10620 | time and the previous event was a mouse click prefix key.\n\ | |
10621 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
10622 | menu_prompting = 1; |
10623 | ||
10624 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
10625 | "Character to see next line of menu prompt.\n\ | |
10626 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 10627 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10628 | |
10629 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
10630 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
10631 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
10632 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 10633 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
10634 | all input characters will have the control modifier applied to them.\n\ |
10635 | \n\ | |
9d9f56dd | 10636 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 10637 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 10638 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 10639 | cancels any modification."); |
9fa4395d | 10640 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10641 | |
10642 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
10643 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
10644 | The command loop sets this to nil before each command,\n\ | |
10645 | and tests the value when the command returns.\n\ | |
10646 | Buffer modification stores t in this variable."); | |
10647 | Vdeactivate_mark = Qnil; | |
10648 | ||
b0f2a7bf KH |
10649 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
10650 | "Temporary storage of pre-command-hook or post-command-hook."); | |
10651 | Vcommand_hook_internal = Qnil; | |
10652 | ||
86e5706b | 10653 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 10654 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
10655 | If an unhandled error happens in running this hook,\n\ |
10656 | the hook value is set to nil, since otherwise the error\n\ | |
10657 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
10658 | Vpre_command_hook = Qnil; |
10659 | ||
10660 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 10661 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
10662 | If an unhandled error happens in running this hook,\n\ |
10663 | the hook value is set to nil, since otherwise the error\n\ | |
10664 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 10665 | Vpost_command_hook = Qnil; |
48e416d4 | 10666 | |
59aadc81 RS |
10667 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
10668 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
10669 | Errors running the hook are caught and ignored.\n\ |
10670 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
10671 | Vpost_command_idle_hook = Qnil; |
10672 | ||
10673 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 10674 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
10675 | This is measured in microseconds."); |
10676 | post_command_idle_delay = 100000; | |
10677 | ||
cdb9d665 RS |
10678 | #if 0 |
10679 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
10680 | "Normal hook run when clearing the echo area."); | |
10681 | #endif | |
10682 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10683 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
10684 | ||
48e416d4 RS |
10685 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
10686 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
10687 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 10688 | |
9f9c0e27 RS |
10689 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
10690 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 10691 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10692 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10693 | |
217258d5 KH |
10694 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10695 | Voverriding_terminal_local_map, | |
779b34df | 10696 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10697 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df | 10698 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
5141f9d0 | 10699 | This variable is intended to let commands such as `universal-argument'\n\ |
779b34df | 10700 | set up a different keymap for reading the next command."); |
217258d5 | 10701 | |
9dd3131c RS |
10702 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10703 | "Keymap that overrides all other local keymaps.\n\ | |
10704 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10705 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10706 | Voverriding_local_map = Qnil; | |
10707 | ||
d0a49716 RS |
10708 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10709 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10710 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10711 | and the minor mode maps regardless of `overriding-local-map'."); | |
10712 | Voverriding_local_map_menu_flag = Qnil; | |
10713 | ||
7f07d5ca RS |
10714 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10715 | "Keymap defining bindings for special events to execute at low level."); | |
10716 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10717 | ||
71edead1 | 10718 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10719 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10720 | |
7c97ffdc | 10721 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10722 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10723 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10724 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10725 | and SYMBOL is its name."); |
8a792f3a RS |
10726 | |
10727 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10728 | "List of deferred actions to be performed at a later time.\n\ | |
10729 | The precise format isn't relevant here; we just check whether it is nil."); | |
10730 | Vdeferred_action_list = Qnil; | |
10731 | ||
10732 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10733 | "Function to call to handle deferred actions, after each command.\n\ | |
10734 | This function is called with no arguments after each command\n\ | |
10735 | whenever `deferred-action-list' is non-nil."); | |
10736 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10737 | |
10738 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10739 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10740 | The value can be a length of time to show the message for.\n\ |
10741 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10742 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10743 | |
c04cbc3b | 10744 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10745 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10746 | Vtimer_list = Qnil; |
d9d4c147 KH |
10747 | |
10748 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10749 | "List of active idle-time timers in order of increasing time"); | |
10750 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10751 | |
10752 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10753 | "If non-nil, the function that implements the current input method.\n\ | |
10754 | It's called with one argument, a printing character that was just read.\n\ | |
10755 | \(That means a character with code 040...0176.)\n\ | |
10756 | Typically this function uses `read-event' to read additional events.\n\ | |
10757 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10758 | so it will not be called recursively.\n\ | |
10759 | \n\ | |
10760 | The function should return a list of zero or more events\n\ | |
10761 | to be used as input. If it wants to put back some events\n\ | |
10762 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10763 | it can add them to the beginning of `unread-command-events'.\n\ |
10764 | \n\ | |
10765 | The input method function can find in `input-method-previous-method'\n\ | |
10766 | the previous echo area message.\n\ | |
10767 | \n\ | |
10768 | The input method function should refer to the variables\n\ | |
10769 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10770 | for guidance on what to do."); | |
7d18f9ae | 10771 | Vinput_method_function = Qnil; |
d5eecefb RS |
10772 | |
10773 | DEFVAR_LISP ("input-method-previous-message", | |
10774 | &Vinput_method_previous_message, | |
a8b13665 | 10775 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10776 | This variable exists because `read-event' clears the echo area\n\ |
10777 | before running the input method. It is nil if there was no message."); | |
10778 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10779 | |
10780 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10781 | "If non-nil, the function that implements the display of help.\n\ | |
10782 | It's called with one argument, the help string to display."); | |
10783 | Vshow_help_function = Qnil; | |
adf5cb9c KH |
10784 | |
10785 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
10786 | "If non-nil, suppress point adjustment after executing a command.\n\ | |
10787 | \n\ | |
10788 | After a command is executed, if point is moved into a region that has\n\ | |
10789 | special properties (e.g. composition, display), we adjust point to\n\ | |
10790 | the boundary of the region. But, several special commands sets this\n\ | |
10791 | variable to non-nil, then we suppress the point adjustment.\n\ | |
10792 | \n\ | |
10793 | This variable is set to nil before reading a command, and is checked\n\ | |
10794 | just after executing the command"); | |
10795 | Vdisable_point_adjustment = Qnil; | |
10796 | ||
10797 | DEFVAR_LISP ("global-disable-point-adjustment", | |
10798 | &Vglobal_disable_point_adjustment, | |
10799 | "*If non-nil, always suppress point adjustment.\n\ | |
10800 | \n\ | |
10801 | The default value is nil, in which case, point adjustment are\n\ | |
10802 | suppressed only after special commands that set\n\ | |
10803 | `disable-point-adjustment' (which see) to non-nil."); | |
10804 | Vglobal_disable_point_adjustment = Qnil; | |
3626fb1a | 10805 | |
a1d34b1e | 10806 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
3626fb1a GM |
10807 | "Non-nil means updating menu bindings is allowed.\n\ |
10808 | A value of nil means menu bindings should not be updated.\n\ | |
10809 | Used during Emacs' startup."); | |
10810 | update_menu_bindings = 1; | |
00392ce6 MB |
10811 | |
10812 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
10813 | "*How long to display an echo-area message when the minibuffer is active.\n\ | |
10814 | If the value is not a number, such messages don't time out."); | |
10815 | Vminibuffer_message_timeout = make_number (2); | |
284f4730 JB |
10816 | } |
10817 | ||
dfcf069d | 10818 | void |
284f4730 JB |
10819 | keys_of_keyboard () |
10820 | { | |
10821 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10822 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10823 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10824 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10825 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10826 | |
10827 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10828 | "handle-delete-frame"); | |
10829 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10830 | "ignore-event"); | |
10831 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10832 | "ignore-event"); | |
284f4730 | 10833 | } |