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 | 226 | |
f49aedfd | 227 | 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 *)); |
9ce50b1e | 693 | static void any_kboard_state P_ ((void)); |
284f4730 | 694 | |
8026024c KH |
695 | /* Nonzero means don't try to suspend even if the operating system seems |
696 | to support it. */ | |
697 | static int cannot_suspend; | |
698 | ||
284f4730 JB |
699 | /* Install the string STR as the beginning of the string of echoing, |
700 | so that it serves as a prompt for the next character. | |
701 | Also start echoing. */ | |
702 | ||
dfcf069d | 703 | void |
284f4730 | 704 | echo_prompt (str) |
a4ef85ee | 705 | Lisp_Object str; |
284f4730 | 706 | { |
f717c2ba | 707 | int nbytes = STRING_BYTES (XSTRING (str)); |
a4ef85ee | 708 | int multibyte_p = STRING_MULTIBYTE (str); |
7a80a6f6 | 709 | |
f717c2ba | 710 | if (nbytes > ECHOBUFSIZE - 4) |
a4ef85ee KH |
711 | { |
712 | if (multibyte_p) | |
713 | { | |
f717c2ba GM |
714 | /* Have to find the last character that fit's into the |
715 | echo buffer. */ | |
716 | unsigned char *p = XSTRING (str)->data; | |
a4ef85ee | 717 | unsigned char *pend = p + ECHOBUFSIZE - 4; |
f717c2ba | 718 | int char_len; |
a4ef85ee | 719 | |
f717c2ba | 720 | do |
a4ef85ee | 721 | { |
f717c2ba GM |
722 | PARSE_MULTIBYTE_SEQ (p, pend - p, char_len); |
723 | p += char_len; | |
a4ef85ee | 724 | } |
f717c2ba GM |
725 | while (p < pend); |
726 | ||
727 | nbytes = p - XSTRING (str)->data - char_len; | |
a4ef85ee KH |
728 | } |
729 | else | |
f717c2ba | 730 | nbytes = ECHOBUFSIZE - 4; |
a4ef85ee KH |
731 | } |
732 | ||
f717c2ba GM |
733 | nbytes = copy_text (XSTRING (str)->data, current_kboard->echobuf, nbytes, |
734 | STRING_MULTIBYTE (str), 1); | |
735 | current_kboard->echoptr = current_kboard->echobuf + nbytes; | |
c5fdd383 | 736 | *current_kboard->echoptr = '\0'; |
f717c2ba | 737 | current_kboard->echo_after_prompt = nbytes; |
7a80a6f6 | 738 | |
3dbd9ee4 | 739 | echo_now (); |
284f4730 JB |
740 | } |
741 | ||
df0f2ba1 | 742 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
743 | C can be a character, which is printed prettily ("M-C-x" and all that |
744 | jazz), or a symbol, whose name is printed. */ | |
745 | ||
dfcf069d | 746 | void |
284f4730 JB |
747 | echo_char (c) |
748 | Lisp_Object c; | |
749 | { | |
c5fdd383 | 750 | if (current_kboard->immediate_echo) |
284f4730 | 751 | { |
c5fdd383 | 752 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 753 | |
c5fdd383 | 754 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
755 | *ptr++ = ' '; |
756 | ||
757 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 758 | c = EVENT_HEAD (c); |
284f4730 | 759 | |
8c18cbfb | 760 | if (INTEGERP (c)) |
284f4730 | 761 | { |
a4ef85ee KH |
762 | int ch = XINT (c); |
763 | ||
2d0ffc9a KH |
764 | if (ptr - current_kboard->echobuf |
765 | > ECHOBUFSIZE - KEY_DESCRIPTION_SIZE) | |
284f4730 JB |
766 | return; |
767 | ||
5a7cb8f1 | 768 | ptr = push_key_description (ch, ptr, 1); |
284f4730 | 769 | } |
8c18cbfb | 770 | else if (SYMBOLP (c)) |
284f4730 JB |
771 | { |
772 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 773 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 774 | > ECHOBUFSIZE) |
284f4730 | 775 | return; |
a4ef85ee KH |
776 | ptr += copy_text (name->data, ptr, STRING_BYTES (name), |
777 | name->size_byte >= 0, 1); | |
284f4730 JB |
778 | } |
779 | ||
c5fdd383 | 780 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 781 | && help_char_p (c)) |
284f4730 JB |
782 | { |
783 | strcpy (ptr, " (Type ? for further options)"); | |
784 | ptr += strlen (ptr); | |
785 | } | |
786 | ||
787 | *ptr = 0; | |
c5fdd383 | 788 | current_kboard->echoptr = ptr; |
284f4730 | 789 | |
3dbd9ee4 | 790 | echo_now (); |
284f4730 JB |
791 | } |
792 | } | |
793 | ||
794 | /* Temporarily add a dash to the end of the echo string if it's not | |
795 | empty, so that it serves as a mini-prompt for the very next character. */ | |
796 | ||
dfcf069d | 797 | void |
284f4730 JB |
798 | echo_dash () |
799 | { | |
c5fdd383 KH |
800 | if (!current_kboard->immediate_echo |
801 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 802 | return; |
7a80a6f6 | 803 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
804 | if (current_kboard->echo_after_prompt |
805 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 806 | return; |
4bafa972 | 807 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 808 | if (current_kboard->echoptr == 0) |
4bafa972 | 809 | return; |
284f4730 JB |
810 | |
811 | /* Put a dash at the end of the buffer temporarily, | |
812 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
813 | current_kboard->echoptr[0] = '-'; |
814 | current_kboard->echoptr[1] = 0; | |
284f4730 | 815 | |
3dbd9ee4 | 816 | echo_now (); |
284f4730 JB |
817 | } |
818 | ||
819 | /* Display the current echo string, and begin echoing if not already | |
820 | doing so. */ | |
821 | ||
07a59269 | 822 | void |
3dbd9ee4 | 823 | echo_now () |
284f4730 | 824 | { |
c5fdd383 | 825 | if (!current_kboard->immediate_echo) |
284f4730 JB |
826 | { |
827 | int i; | |
c5fdd383 | 828 | current_kboard->immediate_echo = 1; |
284f4730 JB |
829 | |
830 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
831 | { |
832 | Lisp_Object c; | |
833 | c = XVECTOR (this_command_keys)->contents[i]; | |
834 | if (! (EVENT_HAS_PARAMETERS (c) | |
835 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
836 | echo_char (c); | |
837 | } | |
284f4730 JB |
838 | echo_dash (); |
839 | } | |
840 | ||
841 | echoing = 1; | |
301738ed | 842 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
a4ef85ee | 843 | 1); |
284f4730 JB |
844 | echoing = 0; |
845 | ||
59a84f8e GM |
846 | /* Record in what buffer we echoed, and from which kboard. */ |
847 | echo_message_buffer = echo_area_buffer[0]; | |
848 | echo_kboard = current_kboard; | |
849 | ||
284f4730 JB |
850 | if (waiting_for_input && !NILP (Vquit_flag)) |
851 | quit_throw_to_read_char (); | |
852 | } | |
853 | ||
854 | /* Turn off echoing, for the start of a new command. */ | |
855 | ||
dfcf069d | 856 | void |
284f4730 JB |
857 | cancel_echoing () |
858 | { | |
c5fdd383 KH |
859 | current_kboard->immediate_echo = 0; |
860 | current_kboard->echoptr = current_kboard->echobuf; | |
861 | current_kboard->echo_after_prompt = -1; | |
59a84f8e GM |
862 | ok_to_echo_at_next_pause = NULL; |
863 | echo_kboard = NULL; | |
864 | echo_message_buffer = Qnil; | |
284f4730 JB |
865 | } |
866 | ||
867 | /* Return the length of the current echo string. */ | |
868 | ||
869 | static int | |
870 | echo_length () | |
871 | { | |
c5fdd383 | 872 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
873 | } |
874 | ||
875 | /* Truncate the current echo message to its first LEN chars. | |
876 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 877 | switches frames while entering a key sequence. */ |
284f4730 JB |
878 | |
879 | static void | |
880 | echo_truncate (len) | |
881 | int len; | |
882 | { | |
c5fdd383 KH |
883 | current_kboard->echobuf[len] = '\0'; |
884 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 885 | truncate_echo_area (len); |
284f4730 JB |
886 | } |
887 | ||
888 | \f | |
889 | /* Functions for manipulating this_command_keys. */ | |
890 | static void | |
891 | add_command_key (key) | |
892 | Lisp_Object key; | |
893 | { | |
71918b75 RS |
894 | /* If reset-this-command-length was called recently, obey it now. |
895 | See the doc string of that function for an explanation of why. */ | |
896 | if (before_command_restore_flag) | |
897 | { | |
898 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
899 | if (this_command_key_count < this_single_command_key_start) |
900 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
901 | echo_truncate (before_command_echo_length_1); |
902 | before_command_restore_flag = 0; | |
903 | } | |
904 | ||
f4e05d97 GM |
905 | if (this_command_key_count >= ASIZE (this_command_keys)) |
906 | this_command_keys = larger_vector (this_command_keys, | |
907 | 2 * ASIZE (this_command_keys), | |
908 | Qnil); | |
6569cc8d | 909 | |
f4e05d97 GM |
910 | AREF (this_command_keys, this_command_key_count) = key; |
911 | ++this_command_key_count; | |
284f4730 | 912 | } |
f4e05d97 | 913 | |
284f4730 JB |
914 | \f |
915 | Lisp_Object | |
916 | recursive_edit_1 () | |
917 | { | |
918 | int count = specpdl_ptr - specpdl; | |
919 | Lisp_Object val; | |
920 | ||
921 | if (command_loop_level > 0) | |
922 | { | |
923 | specbind (Qstandard_output, Qt); | |
924 | specbind (Qstandard_input, Qt); | |
925 | } | |
926 | ||
84265027 | 927 | #ifdef HAVE_X_WINDOWS |
526a058f | 928 | /* The command loop has started an hourglass timer, so we have to |
84265027 GM |
929 | cancel it here, otherwise it will fire because the recursive edit |
930 | can take some time. */ | |
526a058f GM |
931 | if (display_hourglass_p) |
932 | cancel_hourglass (); | |
84265027 GM |
933 | #endif |
934 | ||
980a2d69 GM |
935 | /* This function may have been called from a debugger called from |
936 | within redisplay, for instance by Edebugging a function called | |
937 | from fontification-functions. We want to allow redisplay in | |
938 | the debugging session. | |
939 | ||
940 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
941 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
942 | recursive edit, the original redisplay leading to the recursive | |
943 | edit will be unwound. The outcome should therefore be safe. */ | |
944 | specbind (Qinhibit_redisplay, Qnil); | |
945 | redisplaying_p = 0; | |
946 | ||
284f4730 JB |
947 | val = command_loop (); |
948 | if (EQ (val, Qt)) | |
949 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
950 | /* Handle throw from read_minibuf when using minibuffer |
951 | while it's active but we're in another window. */ | |
952 | if (STRINGP (val)) | |
953 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 954 | |
cb5df6ae | 955 | return unbind_to (count, Qnil); |
284f4730 JB |
956 | } |
957 | ||
958 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 959 | |
07a59269 | 960 | void |
284f4730 JB |
961 | record_auto_save () |
962 | { | |
c43b1734 | 963 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 964 | } |
5846638c RS |
965 | |
966 | /* Make an auto save happen as soon as possible at command level. */ | |
967 | ||
dfcf069d | 968 | void |
5846638c RS |
969 | force_auto_save_soon () |
970 | { | |
971 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
972 | |
973 | record_asynch_buffer_change (); | |
5846638c | 974 | } |
284f4730 | 975 | \f |
284f4730 JB |
976 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
977 | "Invoke the editor command loop recursively.\n\ | |
978 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
979 | that tells this function to return.\n\ | |
980 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
981 | This function is called by the editor initialization to begin editing.") | |
982 | () | |
983 | { | |
984 | int count = specpdl_ptr - specpdl; | |
9ce50b1e | 985 | Lisp_Object buffer; |
284f4730 JB |
986 | |
987 | command_loop_level++; | |
988 | update_mode_lines = 1; | |
989 | ||
9ce50b1e GM |
990 | if (command_loop_level |
991 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
992 | buffer = Fcurrent_buffer (); | |
993 | else | |
994 | buffer = Qnil; | |
995 | ||
996 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
997 | like it is done in the splash screen display, we have to | |
998 | make sure that we restore single_kboard as command_loop_1 | |
999 | would have done if it were left normally. */ | |
284f4730 | 1000 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1001 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1002 | ||
284f4730 JB |
1003 | recursive_edit_1 (); |
1004 | return unbind_to (count, Qnil); | |
1005 | } | |
1006 | ||
1007 | Lisp_Object | |
9ce50b1e GM |
1008 | recursive_edit_unwind (info) |
1009 | Lisp_Object info; | |
284f4730 | 1010 | { |
9ce50b1e GM |
1011 | if (BUFFERP (XCAR (info))) |
1012 | Fset_buffer (XCAR (info)); | |
1013 | ||
1014 | if (NILP (XCDR (info))) | |
1015 | any_kboard_state (); | |
1016 | else | |
1017 | single_kboard_state (); | |
1018 | ||
284f4730 JB |
1019 | command_loop_level--; |
1020 | update_mode_lines = 1; | |
1021 | return Qnil; | |
1022 | } | |
9ce50b1e | 1023 | |
284f4730 | 1024 | \f |
604ccd1d | 1025 | static void |
1e8bd3da | 1026 | any_kboard_state () |
604ccd1d | 1027 | { |
1e8bd3da RS |
1028 | #ifdef MULTI_KBOARD |
1029 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1030 | it will right away be read by read_key_sequence, | |
1031 | and then if we do switch KBOARDS, it will go into the side | |
1032 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1033 | if (CONSP (Vunread_command_events)) |
4524b161 | 1034 | { |
c5fdd383 KH |
1035 | current_kboard->kbd_queue |
1036 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1037 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1038 | } |
604ccd1d | 1039 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1040 | #endif |
1041 | single_kboard = 0; | |
1042 | #endif | |
604ccd1d | 1043 | } |
1e8bd3da RS |
1044 | |
1045 | /* Switch to the single-kboard state, making current_kboard | |
1046 | the only KBOARD from which further input is accepted. */ | |
1047 | ||
1048 | void | |
1049 | single_kboard_state () | |
1050 | { | |
1051 | #ifdef MULTI_KBOARD | |
1052 | single_kboard = 1; | |
604ccd1d | 1053 | #endif |
1e8bd3da RS |
1054 | } |
1055 | ||
1056 | /* Maintain a stack of kboards, so other parts of Emacs | |
1057 | can switch temporarily to the kboard of a given frame | |
1058 | and then revert to the previous status. */ | |
1059 | ||
1060 | struct kboard_stack | |
1061 | { | |
1062 | KBOARD *kboard; | |
1063 | struct kboard_stack *next; | |
1064 | }; | |
1065 | ||
1066 | static struct kboard_stack *kboard_stack; | |
1067 | ||
1068 | void | |
1069 | push_frame_kboard (f) | |
1070 | FRAME_PTR f; | |
1071 | { | |
ab48365b | 1072 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1073 | struct kboard_stack *p |
1074 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1075 | ||
1076 | p->next = kboard_stack; | |
1077 | p->kboard = current_kboard; | |
1078 | kboard_stack = p; | |
1079 | ||
1080 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1081 | #endif |
1e8bd3da RS |
1082 | } |
1083 | ||
1084 | void | |
1085 | pop_frame_kboard () | |
1086 | { | |
ab48365b | 1087 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1088 | struct kboard_stack *p = kboard_stack; |
1089 | current_kboard = p->kboard; | |
1090 | kboard_stack = p->next; | |
1091 | xfree (p); | |
ab48365b | 1092 | #endif |
1e8bd3da RS |
1093 | } |
1094 | \f | |
1095 | /* Handle errors that are not handled at inner levels | |
1096 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1097 | |
284f4730 JB |
1098 | Lisp_Object |
1099 | cmd_error (data) | |
1100 | Lisp_Object data; | |
a1341f75 | 1101 | { |
a9f16aa9 | 1102 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1103 | char macroerror[50]; |
1104 | ||
1105 | if (!NILP (executing_macro)) | |
1106 | { | |
1107 | if (executing_macro_iterations == 1) | |
1108 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1109 | else | |
1110 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1111 | executing_macro_iterations); | |
1112 | } | |
1113 | else | |
1114 | *macroerror = 0; | |
a9f16aa9 | 1115 | |
a1341f75 RS |
1116 | Vstandard_output = Qt; |
1117 | Vstandard_input = Qt; | |
1118 | Vexecuting_macro = Qnil; | |
9f58e89e | 1119 | executing_macro = Qnil; |
d8bcf58e | 1120 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1121 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1122 | cancel_echoing (); |
a9f16aa9 KH |
1123 | |
1124 | /* Avoid unquittable loop if data contains a circular list. */ | |
1125 | old_level = Vprint_level; | |
1126 | old_length = Vprint_length; | |
0c04a67e RS |
1127 | XSETFASTINT (Vprint_level, 10); |
1128 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1129 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1130 | Vprint_level = old_level; |
1131 | Vprint_length = old_length; | |
a1341f75 RS |
1132 | |
1133 | Vquit_flag = Qnil; | |
1134 | ||
1135 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1136 | #ifdef MULTI_KBOARD |
1e8bd3da | 1137 | any_kboard_state (); |
ff4b06d3 | 1138 | #endif |
a1341f75 RS |
1139 | |
1140 | return make_number (0); | |
1141 | } | |
1142 | ||
301738ed RS |
1143 | /* Take actions on handling an error. DATA is the data that describes |
1144 | the error. | |
1145 | ||
1146 | CONTEXT is a C-string containing ASCII characters only which | |
1147 | describes the context in which the error happened. If we need to | |
1148 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1149 | string. */ | |
1150 | ||
07a59269 | 1151 | void |
a1341f75 RS |
1152 | cmd_error_internal (data, context) |
1153 | Lisp_Object data; | |
1154 | char *context; | |
284f4730 | 1155 | { |
284f4730 | 1156 | Lisp_Object stream; |
7ee32cda | 1157 | int kill_emacs_p = 0; |
788f89eb | 1158 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1159 | |
1160 | Vquit_flag = Qnil; | |
1161 | Vinhibit_quit = Qt; | |
985f9f66 | 1162 | clear_message (1, 0); |
284f4730 | 1163 | |
ff11dfa1 | 1164 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1165 | yet, or we're not interactive, it's best to dump this message out |
1166 | to stderr and exit. */ | |
788f89eb | 1167 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1168 | /* This is the case of the frame dumped with Emacs, when we're |
1169 | running under a window system. */ | |
1170 | || (!NILP (Vwindow_system) | |
1171 | && !inhibit_window_system | |
788f89eb | 1172 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1173 | || noninteractive) |
7ee32cda GM |
1174 | { |
1175 | stream = Qexternal_debugging_output; | |
1176 | kill_emacs_p = 1; | |
1177 | } | |
284f4730 JB |
1178 | else |
1179 | { | |
1180 | Fdiscard_input (); | |
1181 | bitch_at_user (); | |
1182 | stream = Qt; | |
1183 | } | |
1184 | ||
a1341f75 RS |
1185 | if (context != 0) |
1186 | write_string_1 (context, -1, stream); | |
1187 | ||
22a51344 | 1188 | print_error_message (data, stream); |
284f4730 | 1189 | |
ff11dfa1 | 1190 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1191 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1192 | if (kill_emacs_p) |
284f4730 JB |
1193 | { |
1194 | Fterpri (stream); | |
1195 | Fkill_emacs (make_number (-1)); | |
1196 | } | |
284f4730 JB |
1197 | } |
1198 | \f | |
1199 | Lisp_Object command_loop_1 (); | |
1200 | Lisp_Object command_loop_2 (); | |
1201 | Lisp_Object top_level_1 (); | |
1202 | ||
1203 | /* Entry to editor-command-loop. | |
1204 | This level has the catches for exiting/returning to editor command loop. | |
1205 | It returns nil to exit recursive edit, t to abort it. */ | |
1206 | ||
1207 | Lisp_Object | |
1208 | command_loop () | |
1209 | { | |
1210 | if (command_loop_level > 0 || minibuf_level > 0) | |
1211 | { | |
07ba902e RS |
1212 | Lisp_Object val; |
1213 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1214 | executing_macro = Qnil; |
1215 | return val; | |
284f4730 JB |
1216 | } |
1217 | else | |
1218 | while (1) | |
1219 | { | |
1220 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1221 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1222 | executing_macro = Qnil; |
df0f2ba1 | 1223 | |
284f4730 JB |
1224 | /* End of file in -batch run causes exit here. */ |
1225 | if (noninteractive) | |
1226 | Fkill_emacs (Qt); | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | /* Here we catch errors in execution of commands within the | |
1231 | editing loop, and reenter the editing loop. | |
1232 | When there is an error, cmd_error runs and returns a non-nil | |
1233 | value to us. A value of nil means that cmd_loop_1 itself | |
1234 | returned due to end of file (or end of kbd macro). */ | |
1235 | ||
1236 | Lisp_Object | |
1237 | command_loop_2 () | |
1238 | { | |
1239 | register Lisp_Object val; | |
1240 | ||
1241 | do | |
1242 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1243 | while (!NILP (val)); | |
1244 | ||
1245 | return Qnil; | |
1246 | } | |
1247 | ||
1248 | Lisp_Object | |
1249 | top_level_2 () | |
1250 | { | |
1251 | return Feval (Vtop_level); | |
1252 | } | |
1253 | ||
1254 | Lisp_Object | |
1255 | top_level_1 () | |
1256 | { | |
1257 | /* On entry to the outer level, run the startup file */ | |
1258 | if (!NILP (Vtop_level)) | |
1259 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1260 | else if (!NILP (Vpurify_flag)) | |
1261 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1262 | else | |
1263 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1264 | return Qnil; | |
1265 | } | |
1266 | ||
1267 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1268 | "Exit all recursive editing levels.") | |
1269 | () | |
1270 | { | |
2c9cf2c8 | 1271 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1272 | if (display_hourglass_p) |
1273 | cancel_hourglass (); | |
2c9cf2c8 | 1274 | #endif |
8c907a56 | 1275 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1276 | } |
1277 | ||
1278 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1279 | "Exit from the innermost recursive edit or minibuffer.") | |
1280 | () | |
1281 | { | |
1282 | if (command_loop_level > 0 || minibuf_level > 0) | |
1283 | Fthrow (Qexit, Qnil); | |
1284 | ||
1285 | error ("No recursive edit is in progress"); | |
8c907a56 | 1286 | return Qnil; |
284f4730 JB |
1287 | } |
1288 | ||
1289 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1290 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1291 | () | |
1292 | { | |
1293 | if (command_loop_level > 0 || minibuf_level > 0) | |
1294 | Fthrow (Qexit, Qt); | |
1295 | ||
1296 | error ("No recursive edit is in progress"); | |
8c907a56 | 1297 | return Qnil; |
284f4730 JB |
1298 | } |
1299 | \f | |
1300 | /* This is the actual command reading loop, | |
1301 | sans error-handling encapsulation. */ | |
1302 | ||
a7b772c1 GM |
1303 | EXFUN (Fcommand_execute, 4); |
1304 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, | |
1305 | int, int, int)); | |
1306 | void safe_run_hooks P_ ((Lisp_Object)); | |
1307 | static void adjust_point_for_property P_ ((int)); | |
284f4730 JB |
1308 | |
1309 | Lisp_Object | |
1310 | command_loop_1 () | |
1311 | { | |
03cee6ae GM |
1312 | Lisp_Object cmd; |
1313 | int lose; | |
284f4730 JB |
1314 | int nonundocount; |
1315 | Lisp_Object keybuf[30]; | |
1316 | int i; | |
284f4730 | 1317 | int no_direct; |
86e5706b | 1318 | int prev_modiff; |
8c907a56 | 1319 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1320 | #ifdef MULTI_KBOARD |
1e8bd3da | 1321 | int was_locked = single_kboard; |
bded54dd | 1322 | #endif |
284f4730 | 1323 | |
d9b641bb | 1324 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1325 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1326 | Vdeactivate_mark = Qnil; |
284f4730 | 1327 | waiting_for_input = 0; |
df0f2ba1 | 1328 | cancel_echoing (); |
284f4730 | 1329 | |
284f4730 | 1330 | nonundocount = 0; |
284f4730 | 1331 | this_command_key_count = 0; |
6321824f | 1332 | this_single_command_key_start = 0; |
284f4730 | 1333 | |
a612e298 RS |
1334 | /* Make sure this hook runs after commands that get errors and |
1335 | throw to top level. */ | |
a98ea3f9 RS |
1336 | /* Note that the value cell will never directly contain nil |
1337 | if the symbol is a local variable. */ | |
e98a93eb | 1338 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1339 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1340 | |
8f12e41d GM |
1341 | /* If displaying a message, resize the echo area window to fit |
1342 | that message's size exactly. */ | |
1343 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1344 | resize_echo_area_exactly (); |
8f12e41d | 1345 | |
8a792f3a RS |
1346 | if (!NILP (Vdeferred_action_list)) |
1347 | call0 (Vdeferred_action_function); | |
1348 | ||
e98a93eb | 1349 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1350 | { |
1351 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1352 | && NILP (Vunread_input_method_events) |
1353 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1354 | && NILP (Vexecuting_macro) |
41365083 | 1355 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1356 | safe_run_hooks (Qpost_command_idle_hook); |
1357 | } | |
1358 | ||
51d5a2c9 | 1359 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1360 | current_kboard->Vlast_command = Vthis_command; |
1361 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1362 | |
284f4730 JB |
1363 | while (1) |
1364 | { | |
788f89eb | 1365 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1366 | Fkill_emacs (Qnil); |
1367 | ||
284f4730 JB |
1368 | /* Make sure the current window's buffer is selected. */ |
1369 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1370 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1371 | ||
1372 | /* Display any malloc warning that just came out. Use while because | |
1373 | displaying one warning can cause another. */ | |
1374 | ||
1375 | while (pending_malloc_warning) | |
1376 | display_malloc_warning (); | |
1377 | ||
1378 | no_direct = 0; | |
1379 | ||
86e5706b RS |
1380 | Vdeactivate_mark = Qnil; |
1381 | ||
284f4730 | 1382 | /* If minibuffer on and echo area in use, |
00392ce6 | 1383 | wait a short time and redraw minibuffer. */ |
284f4730 | 1384 | |
7ee32cda | 1385 | if (minibuf_level |
985f9f66 | 1386 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1387 | && EQ (minibuf_window, echo_area_window) |
1388 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1389 | { |
f1bed6d8 RS |
1390 | /* Bind inhibit-quit to t so that C-g gets read in |
1391 | rather than quitting back to the minibuffer. */ | |
1392 | int count = specpdl_ptr - specpdl; | |
1393 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1394 | |
00392ce6 | 1395 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1396 | /* Clear the echo area. */ |
301738ed | 1397 | message2 (0, 0, 0); |
cdb9d665 | 1398 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1399 | |
db08707d RS |
1400 | unbind_to (count, Qnil); |
1401 | ||
e6aa7813 | 1402 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1403 | if (!NILP (Vquit_flag)) |
1404 | { | |
1405 | Vquit_flag = Qnil; | |
24597608 | 1406 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1407 | } |
1408 | } | |
1409 | ||
1410 | #ifdef C_ALLOCA | |
ff4b06d3 | 1411 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1412 | /* Since we can free the most stuff here. */ |
1413 | #endif /* C_ALLOCA */ | |
1414 | ||
8f805655 | 1415 | #if 0 |
8f805655 JB |
1416 | /* Select the frame that the last event came from. Usually, |
1417 | switch-frame events will take care of this, but if some lisp | |
1418 | code swallows a switch-frame event, we'll fix things up here. | |
1419 | Is this a good idea? */ | |
8c18cbfb | 1420 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1421 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1422 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1423 | #endif |
48e416d4 RS |
1424 | /* If it has changed current-menubar from previous value, |
1425 | really recompute the menubar from the value. */ | |
a646e520 RS |
1426 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1427 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1428 | call0 (Qrecompute_lucid_menubar); |
1429 | ||
71918b75 RS |
1430 | before_command_key_count = this_command_key_count; |
1431 | before_command_echo_length = echo_length (); | |
1432 | ||
d5eecefb RS |
1433 | Vthis_command = Qnil; |
1434 | real_this_command = Qnil; | |
d7437ef6 | 1435 | |
8f805655 | 1436 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1437 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1438 | Qnil, 0, 1, 1); |
8f805655 | 1439 | |
6fac1409 | 1440 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1441 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1442 | Fkill_emacs (Qnil); |
6fac1409 RS |
1443 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1444 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1445 | ||
8f805655 JB |
1446 | ++num_input_keys; |
1447 | ||
284f4730 JB |
1448 | /* Now we have read a key sequence of length I, |
1449 | or else I is 0 and we found end of file. */ | |
1450 | ||
1451 | if (i == 0) /* End of file -- happens only in */ | |
1452 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1453 | /* -1 means read_key_sequence got a menu that was rejected. |
1454 | Just loop around and read another command. */ | |
1455 | if (i == -1) | |
1456 | { | |
1457 | cancel_echoing (); | |
1458 | this_command_key_count = 0; | |
6321824f | 1459 | this_single_command_key_start = 0; |
ff4b06d3 | 1460 | goto finalize; |
dcc408a0 | 1461 | } |
284f4730 | 1462 | |
284f4730 JB |
1463 | last_command_char = keybuf[i - 1]; |
1464 | ||
75c0b143 RS |
1465 | /* If the previous command tried to force a specific window-start, |
1466 | forget about that, in case this command moves point far away | |
c422836d KH |
1467 | from that position. But also throw away beg_unchanged and |
1468 | end_unchanged information in that case, so that redisplay will | |
1469 | update the whole window properly. */ | |
1470 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1471 | { | |
9351ebd0 | 1472 | struct buffer *b; |
c422836d | 1473 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1474 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1475 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1476 | } |
75c0b143 | 1477 | |
284f4730 JB |
1478 | cmd = read_key_sequence_cmd; |
1479 | if (!NILP (Vexecuting_macro)) | |
1480 | { | |
1481 | if (!NILP (Vquit_flag)) | |
1482 | { | |
1483 | Vexecuting_macro = Qt; | |
1484 | QUIT; /* Make some noise. */ | |
1485 | /* Will return since macro now empty. */ | |
1486 | } | |
1487 | } | |
1488 | ||
1489 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1490 | cases identified below. */ |
86e5706b RS |
1491 | prev_buffer = current_buffer; |
1492 | prev_modiff = MODIFF; | |
8746da95 | 1493 | last_point_position = PT; |
18cd2eeb | 1494 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1495 | |
adf5cb9c KH |
1496 | /* By default, we adjust point to a boundary of a region that |
1497 | has such a property that should be treated intangible | |
1498 | (e.g. composition, display). But, some commands will set | |
1499 | this variable differently. */ | |
1500 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1501 | |
be2488ca GM |
1502 | /* Process filters and timers may have messed with deactivate-mark. |
1503 | reset it before we execute the command. */ | |
1504 | Vdeactivate_mark = Qnil; | |
1505 | ||
284f4730 JB |
1506 | /* Execute the command. */ |
1507 | ||
d5eecefb RS |
1508 | Vthis_command = cmd; |
1509 | real_this_command = cmd; | |
a98ea3f9 RS |
1510 | /* Note that the value cell will never directly contain nil |
1511 | if the symbol is a local variable. */ | |
e98a93eb | 1512 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1513 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1514 | |
d5eecefb | 1515 | if (NILP (Vthis_command)) |
284f4730 JB |
1516 | { |
1517 | /* nil means key is undefined. */ | |
1518 | bitch_at_user (); | |
c5fdd383 | 1519 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1520 | update_mode_lines = 1; |
d8bcf58e | 1521 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1522 | } |
1523 | else | |
1524 | { | |
d8bcf58e | 1525 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1526 | { |
75045dcb RS |
1527 | /* In case we jump to directly_done. */ |
1528 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1529 | ||
284f4730 JB |
1530 | /* Recognize some common commands in common situations and |
1531 | do them directly. */ | |
d5eecefb | 1532 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1533 | { |
51ad8a68 | 1534 | struct Lisp_Char_Table *dp |
284f4730 | 1535 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1536 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1537 | SET_PT (PT + 1); |
0f7a8fee | 1538 | if ((dp |
82ba47d7 | 1539 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1540 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1541 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1542 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1543 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1544 | /* To extract the case of continuation on |
1545 | wide-column characters. */ | |
8458ede6 | 1546 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1547 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1548 | >= MODIFF) | |
598ba4c7 RS |
1549 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1550 | >= OVERLAY_MODIFF) | |
284f4730 | 1551 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1552 | == PT - 1) |
284f4730 JB |
1553 | && !windows_or_buffers_changed |
1554 | && EQ (current_buffer->selective_display, Qnil) | |
1555 | && !detect_input_pending () | |
962ae636 | 1556 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1557 | && NILP (Vexecuting_macro)) |
e35b6123 | 1558 | direct_output_forward_char (1); |
284f4730 JB |
1559 | goto directly_done; |
1560 | } | |
d5eecefb | 1561 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1562 | { |
51ad8a68 | 1563 | struct Lisp_Char_Table *dp |
284f4730 | 1564 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1565 | SET_PT (PT - 1); |
aaf35234 | 1566 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1567 | if ((dp |
ca873d73 | 1568 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1569 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1570 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1571 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1572 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1573 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1574 | >= MODIFF) | |
598ba4c7 RS |
1575 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1576 | >= OVERLAY_MODIFF) | |
284f4730 | 1577 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1578 | == PT + 1) |
284f4730 JB |
1579 | && !windows_or_buffers_changed |
1580 | && EQ (current_buffer->selective_display, Qnil) | |
1581 | && !detect_input_pending () | |
962ae636 | 1582 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1583 | && NILP (Vexecuting_macro)) |
e35b6123 | 1584 | direct_output_forward_char (-1); |
284f4730 JB |
1585 | goto directly_done; |
1586 | } | |
d5eecefb | 1587 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1588 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1589 | && INTEGERP (last_command_char)) |
284f4730 | 1590 | { |
89599794 | 1591 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1592 | int value; |
fc9cce4e RS |
1593 | if (NILP (Vexecuting_macro) |
1594 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1595 | { |
1596 | if (!nonundocount || nonundocount >= 20) | |
1597 | { | |
1598 | Fundo_boundary (); | |
1599 | nonundocount = 0; | |
1600 | } | |
1601 | nonundocount++; | |
1602 | } | |
7ee32cda | 1603 | |
fc9cce4e RS |
1604 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1605 | < MODIFF) | |
598ba4c7 RS |
1606 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1607 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1608 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1609 | != PT) | |
4c61f38e | 1610 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1611 | || windows_or_buffers_changed |
1612 | || !EQ (current_buffer->selective_display, Qnil) | |
1613 | || detect_input_pending () | |
962ae636 | 1614 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1615 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1616 | |
fc9cce4e | 1617 | value = internal_self_insert (c, 0); |
7ee32cda | 1618 | |
fc9cce4e RS |
1619 | if (value == 2) |
1620 | nonundocount = 0; | |
1621 | ||
7ee32cda GM |
1622 | /* VALUE == 1 when AFTER-CHANGE functions are |
1623 | installed which is the case most of the time | |
1624 | because FONT-LOCK installs one. */ | |
1625 | if (!lose && !value) | |
e35b6123 | 1626 | direct_output_for_insert (c); |
284f4730 JB |
1627 | goto directly_done; |
1628 | } | |
1629 | } | |
1630 | ||
1631 | /* Here for a command that isn't executed directly */ | |
1632 | ||
7ee32cda | 1633 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1634 | if (display_hourglass_p) |
1635 | start_hourglass (); | |
7ee32cda GM |
1636 | #endif |
1637 | ||
284f4730 | 1638 | nonundocount = 0; |
d8bcf58e | 1639 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1640 | Fundo_boundary (); |
d5eecefb | 1641 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1642 | |
1643 | #ifdef HAVE_X_WINDOWS | |
526a058f GM |
1644 | if (display_hourglass_p) |
1645 | cancel_hourglass (); | |
d0c48478 | 1646 | #endif |
284f4730 | 1647 | } |
a764a753 | 1648 | directly_done: ; |
75045dcb | 1649 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1650 | |
84ee6048 RS |
1651 | /* Note that the value cell will never directly contain nil |
1652 | if the symbol is a local variable. */ | |
1653 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1654 | safe_run_hooks (Qpost_command_hook); | |
1655 | ||
8f12e41d GM |
1656 | /* If displaying a message, resize the echo area window to fit |
1657 | that message's size exactly. */ | |
1658 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1659 | resize_echo_area_exactly (); |
8f12e41d | 1660 | |
84ee6048 RS |
1661 | if (!NILP (Vdeferred_action_list)) |
1662 | safe_run_hooks (Qdeferred_action_function); | |
1663 | ||
1664 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1665 | { | |
1666 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1667 | && NILP (Vunread_input_method_events) |
1668 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1669 | && NILP (Vexecuting_macro) |
1670 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1671 | safe_run_hooks (Qpost_command_idle_hook); | |
1672 | } | |
1673 | ||
284f4730 | 1674 | /* If there is a prefix argument, |
6c7178b9 KH |
1675 | 1) We don't want Vlast_command to be ``universal-argument'' |
1676 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1677 | 2) we want to leave echoing on so that the prefix will be |
1678 | echoed as part of this key sequence, so don't call | |
1679 | cancel_echoing, and | |
1680 | 3) we want to leave this_command_key_count non-zero, so that | |
1681 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1682 | not echo it a second time. |
1683 | ||
1684 | If the command didn't actually create a prefix arg, | |
1685 | but is merely a frame event that is transparent to prefix args, | |
1686 | then the above doesn't apply. */ | |
1687 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1688 | { |
d5eecefb RS |
1689 | current_kboard->Vlast_command = Vthis_command; |
1690 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1691 | cancel_echoing (); |
1692 | this_command_key_count = 0; | |
6321824f | 1693 | this_single_command_key_start = 0; |
284f4730 | 1694 | } |
86e5706b | 1695 | |
88ce066e | 1696 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1697 | { |
1698 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1699 | { | |
1700 | current_buffer->mark_active = Qnil; | |
1701 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1702 | } | |
1703 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1704 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1705 | } | |
ff4b06d3 KH |
1706 | |
1707 | finalize: | |
adf5cb9c KH |
1708 | |
1709 | if (current_buffer == prev_buffer | |
1710 | && last_point_position != PT | |
1711 | && NILP (Vdisable_point_adjustment) | |
1712 | && NILP (Vglobal_disable_point_adjustment)) | |
1713 | adjust_point_for_property (last_point_position); | |
1714 | ||
ff4b06d3 KH |
1715 | /* Install chars successfully executed in kbd macro. */ |
1716 | ||
d8bcf58e KH |
1717 | if (!NILP (current_kboard->defining_kbd_macro) |
1718 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1719 | finalize_kbd_macro_chars (); |
1720 | ||
c5fdd383 | 1721 | #ifdef MULTI_KBOARD |
604ccd1d | 1722 | if (!was_locked) |
1e8bd3da | 1723 | any_kboard_state (); |
ff4b06d3 | 1724 | #endif |
284f4730 JB |
1725 | } |
1726 | } | |
1c9784c9 | 1727 | |
adf5cb9c KH |
1728 | extern Lisp_Object Qcomposition, Qdisplay; |
1729 | ||
1730 | /* Adjust point to a boundary of a region that has such a property | |
1731 | that should be treated intangible. For the moment, we check | |
1732 | `composition' and `display' property. LAST_PT is the last position | |
1733 | of point. */ | |
1734 | ||
1735 | static void | |
1736 | adjust_point_for_property (last_pt) | |
1737 | int last_pt; | |
1738 | { | |
1739 | int start, end; | |
1740 | Lisp_Object val; | |
1741 | int check_composition = 1, check_display = 1; | |
1742 | ||
1743 | while (check_composition || check_display) | |
1744 | { | |
1745 | if (check_composition | |
1746 | && PT > BEGV && PT < ZV | |
1747 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1748 | && COMPOSITION_VALID_P (start, end, val) | |
1749 | && start < PT && end > PT | |
1750 | && (last_pt <= start || last_pt >= end)) | |
1751 | { | |
1752 | if (PT < last_pt) | |
1753 | SET_PT (start); | |
1754 | else | |
1755 | SET_PT (end); | |
1756 | check_display = 1; | |
1757 | } | |
1758 | check_composition = 0; | |
1759 | if (check_display | |
1760 | && PT > BEGV && PT < ZV | |
1761 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
3e9ac4b7 | 1762 | && display_prop_intangible_p (val) |
adf5cb9c KH |
1763 | && start < PT && end > PT |
1764 | && (last_pt <= start || last_pt >= end)) | |
1765 | { | |
1766 | if (PT < last_pt) | |
1767 | SET_PT (start); | |
1768 | else | |
1769 | SET_PT (end); | |
1770 | check_composition = 1; | |
1771 | } | |
1772 | check_display = 0; | |
1773 | } | |
1774 | } | |
1775 | ||
0bc3db2b RS |
1776 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1777 | ||
1778 | static Lisp_Object | |
1779 | safe_run_hooks_1 (hook) | |
1780 | Lisp_Object hook; | |
1781 | { | |
1782 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1783 | } | |
1784 | ||
1785 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1786 | ||
1787 | static Lisp_Object | |
1788 | safe_run_hooks_error (data) | |
1789 | Lisp_Object data; | |
1790 | { | |
30690496 | 1791 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1792 | } |
1793 | ||
1c9784c9 KH |
1794 | /* If we get an error while running the hook, cause the hook variable |
1795 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1796 | to mysteriously evaporate. */ | |
0bc3db2b | 1797 | |
68f297c5 | 1798 | void |
1c9784c9 | 1799 | safe_run_hooks (hook) |
a98ea3f9 | 1800 | Lisp_Object hook; |
1c9784c9 KH |
1801 | { |
1802 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1803 | specbind (Qinhibit_quit, hook); |
1804 | ||
e702932d | 1805 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1806 | |
1807 | unbind_to (count, Qnil); | |
1808 | } | |
8a9f5d3c | 1809 | |
284f4730 | 1810 | \f |
8a9f5d3c GM |
1811 | /* Number of seconds between polling for input. This is a Lisp |
1812 | variable that can be bound. */ | |
1813 | ||
284f4730 JB |
1814 | int polling_period; |
1815 | ||
eb8c3be9 | 1816 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1817 | |
284f4730 JB |
1818 | int poll_suppress_count; |
1819 | ||
8a9f5d3c GM |
1820 | /* Asynchronous timer for polling. */ |
1821 | ||
1822 | struct atimer *poll_timer; | |
1823 | ||
284f4730 | 1824 | |
36922b18 RS |
1825 | #ifdef POLL_FOR_INPUT |
1826 | ||
8a9f5d3c GM |
1827 | /* Poll for input, so what we catch a C-g if it comes in. This |
1828 | function is called from x_make_frame_visible, see comment | |
1829 | there. */ | |
284f4730 | 1830 | |
8a9f5d3c GM |
1831 | void |
1832 | poll_for_input_1 () | |
284f4730 | 1833 | { |
9ac0d9e0 JB |
1834 | if (interrupt_input_blocked == 0 |
1835 | && !waiting_for_input) | |
1836 | read_avail_input (0); | |
284f4730 JB |
1837 | } |
1838 | ||
8a9f5d3c GM |
1839 | /* Timer callback function for poll_timer. TIMER is equal to |
1840 | poll_timer. */ | |
1841 | ||
1842 | void | |
1843 | poll_for_input (timer) | |
1844 | struct atimer *timer; | |
1845 | { | |
1846 | if (poll_suppress_count == 0) | |
1847 | poll_for_input_1 (); | |
1848 | } | |
1849 | ||
1850 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1851 | |
1852 | /* Begin signals to poll for input, if they are appropriate. | |
1853 | This function is called unconditionally from various places. */ | |
1854 | ||
07a59269 | 1855 | void |
284f4730 JB |
1856 | start_polling () |
1857 | { | |
1858 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1859 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1860 | { |
8a9f5d3c GM |
1861 | /* Turn alarm handling on unconditionally. It might have |
1862 | been turned off in process.c. */ | |
1863 | turn_on_atimers (1); | |
1864 | ||
1865 | /* If poll timer doesn't exist, are we need one with | |
1866 | a different interval, start a new one. */ | |
1867 | if (poll_timer == NULL | |
1868 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1869 | { |
8a9f5d3c GM |
1870 | EMACS_TIME interval; |
1871 | ||
1872 | if (poll_timer) | |
1873 | cancel_atimer (poll_timer); | |
1874 | ||
1875 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1876 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1877 | poll_for_input, NULL); | |
284f4730 | 1878 | } |
8a9f5d3c GM |
1879 | |
1880 | /* Let the timer's callback function poll for input | |
1881 | if this becomes zero. */ | |
1882 | --poll_suppress_count; | |
284f4730 JB |
1883 | } |
1884 | #endif | |
1885 | } | |
1886 | ||
1d3195db RS |
1887 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1888 | ||
1889 | int | |
1890 | input_polling_used () | |
1891 | { | |
1892 | #ifdef POLL_FOR_INPUT | |
1893 | return read_socket_hook && !interrupt_input; | |
1894 | #else | |
1895 | return 0; | |
1896 | #endif | |
1897 | } | |
1898 | ||
284f4730 JB |
1899 | /* Turn off polling. */ |
1900 | ||
07a59269 | 1901 | void |
284f4730 JB |
1902 | stop_polling () |
1903 | { | |
1904 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1905 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1906 | ++poll_suppress_count; |
284f4730 JB |
1907 | #endif |
1908 | } | |
fe8aeef3 RS |
1909 | |
1910 | /* Set the value of poll_suppress_count to COUNT | |
1911 | and start or stop polling accordingly. */ | |
1912 | ||
1913 | void | |
1914 | set_poll_suppress_count (count) | |
1915 | int count; | |
1916 | { | |
1917 | #ifdef POLL_FOR_INPUT | |
1918 | if (count == 0 && poll_suppress_count != 0) | |
1919 | { | |
1920 | poll_suppress_count = 1; | |
1921 | start_polling (); | |
1922 | } | |
1923 | else if (count != 0 && poll_suppress_count == 0) | |
1924 | { | |
1925 | stop_polling (); | |
1926 | } | |
1927 | poll_suppress_count = count; | |
1928 | #endif | |
1929 | } | |
f4eef8b4 | 1930 | |
d0a57728 RS |
1931 | /* Bind polling_period to a value at least N. |
1932 | But don't decrease it. */ | |
1933 | ||
07a59269 | 1934 | void |
f4eef8b4 RS |
1935 | bind_polling_period (n) |
1936 | int n; | |
1937 | { | |
1938 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1939 | int new = polling_period; |
1940 | ||
1941 | if (n > new) | |
1942 | new = n; | |
1943 | ||
6fe007f7 | 1944 | stop_other_atimers (poll_timer); |
f4eef8b4 | 1945 | stop_polling (); |
d0a57728 RS |
1946 | specbind (Qpolling_period, make_number (new)); |
1947 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1948 | start_polling (); |
1949 | #endif | |
1950 | } | |
284f4730 | 1951 | \f |
6da3dd3a RS |
1952 | /* Apply the control modifier to CHARACTER. */ |
1953 | ||
faf5e407 JB |
1954 | int |
1955 | make_ctrl_char (c) | |
1956 | int c; | |
1957 | { | |
d205953b JB |
1958 | /* Save the upper bits here. */ |
1959 | int upper = c & ~0177; | |
1960 | ||
1961 | c &= 0177; | |
1962 | ||
1963 | /* Everything in the columns containing the upper-case letters | |
1964 | denotes a control character. */ | |
1965 | if (c >= 0100 && c < 0140) | |
1966 | { | |
1967 | int oc = c; | |
1968 | c &= ~0140; | |
1969 | /* Set the shift modifier for a control char | |
1970 | made from a shifted letter. But only for letters! */ | |
1971 | if (oc >= 'A' && oc <= 'Z') | |
1972 | c |= shift_modifier; | |
1973 | } | |
1974 | ||
1975 | /* The lower-case letters denote control characters too. */ | |
1976 | else if (c >= 'a' && c <= 'z') | |
1977 | c &= ~0140; | |
1978 | ||
1979 | /* Include the bits for control and shift | |
1980 | only if the basic ASCII code can't indicate them. */ | |
1981 | else if (c >= ' ') | |
1982 | c |= ctrl_modifier; | |
1983 | ||
1984 | /* Replace the high bits. */ | |
1985 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1986 | |
1987 | return c; | |
1988 | } | |
1989 | ||
d4e68eea GM |
1990 | /* Display help echo in the echo area. |
1991 | ||
8dfd92c9 GM |
1992 | HELP a string means display that string, HELP nil means clear the |
1993 | help echo. If HELP is a function, call it with OBJECT and POS as | |
1994 | arguments; the function should return a help string or nil for | |
1995 | none. For all other types of HELP evaluate it to obtain a string. | |
1996 | ||
2190735a GM |
1997 | WINDOW is the window in which the help was generated, if any. |
1998 | It is nil if not in a window. | |
1999 | ||
5b2ec2d0 GM |
2000 | If OBJECT is a buffer, POS is the position in the buffer where the |
2001 | `help-echo' text property was found. | |
2002 | ||
2003 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2004 | and POS is the position in the overlay's buffer under the mouse. | |
2005 | ||
2006 | If OBJECT is a string (an overlay string or a string displayed with | |
2007 | the `display' property). POS is the position in that string under | |
2008 | the mouse. | |
d4e68eea GM |
2009 | |
2010 | OK_TO_IVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help | |
2011 | echo overwrites a keystroke echo currently displayed in the echo | |
2012 | area. | |
2013 | ||
8dfd92c9 GM |
2014 | Note: this function may only be called with HELP nil or a string |
2015 | from X code running asynchronously. */ | |
d4e68eea | 2016 | |
31f84d03 | 2017 | void |
2190735a GM |
2018 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2019 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2020 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2021 | { |
8dfd92c9 | 2022 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2023 | { |
8dfd92c9 GM |
2024 | if (FUNCTIONP (help)) |
2025 | { | |
2190735a | 2026 | Lisp_Object args[4]; |
8dfd92c9 | 2027 | args[0] = help; |
2190735a GM |
2028 | args[1] = window; |
2029 | args[2] = object; | |
2030 | args[3] = pos; | |
1db0076e | 2031 | help = safe_call (4, args); |
8dfd92c9 GM |
2032 | } |
2033 | else | |
1db0076e | 2034 | help = safe_eval (help); |
8dfd92c9 GM |
2035 | |
2036 | if (!STRINGP (help)) | |
d4e68eea | 2037 | return; |
31f84d03 SM |
2038 | } |
2039 | ||
8dfd92c9 | 2040 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2041 | { |
2042 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2043 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2044 | else if (/* Don't overwrite minibuffer contents. */ |
2045 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2046 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2047 | && (NILP (echo_message_buffer) |
2048 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2049 | /* Don't overwrite a prompt. */ |
2050 | && !cursor_in_echo_area) | |
2051 | { | |
8dfd92c9 | 2052 | if (STRINGP (help)) |
d4e68eea | 2053 | { |
f0c1cc56 GM |
2054 | int count = BINDING_STACK_SIZE (); |
2055 | ||
2056 | if (!help_echo_showing_p) | |
2057 | Vpre_help_message = current_message (); | |
2058 | ||
d4e68eea | 2059 | specbind (Qmessage_truncate_lines, Qt); |
5ca020fc | 2060 | message3_nolog (help, STRING_BYTES (XSTRING (help)), |
8dfd92c9 | 2061 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2062 | unbind_to (count, Qnil); |
2063 | } | |
f0c1cc56 GM |
2064 | else if (STRINGP (Vpre_help_message)) |
2065 | { | |
2066 | message3_nolog (Vpre_help_message, | |
2067 | STRING_BYTES (XSTRING (Vpre_help_message)), | |
2068 | STRING_MULTIBYTE (Vpre_help_message)); | |
2069 | Vpre_help_message = Qnil; | |
2070 | } | |
d4e68eea | 2071 | else |
f0c1cc56 | 2072 | message (0); |
d4e68eea | 2073 | } |
5295a500 GM |
2074 | |
2075 | help_echo_showing_p = STRINGP (help); | |
d4e68eea | 2076 | } |
31f84d03 SM |
2077 | } |
2078 | ||
faf5e407 JB |
2079 | |
2080 | \f | |
284f4730 JB |
2081 | /* Input of single characters from keyboard */ |
2082 | ||
2083 | Lisp_Object print_help (); | |
2084 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2085 | static void record_char (); |
284f4730 | 2086 | |
c5fdd383 KH |
2087 | #ifdef MULTI_KBOARD |
2088 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2089 | #endif |
beecf6a1 | 2090 | |
284f4730 JB |
2091 | /* read a character from the keyboard; call the redisplay if needed */ |
2092 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2093 | -1 means do not do redisplay, but do do autosaving. | |
2094 | 1 means do both. */ | |
2095 | ||
7d6de002 RS |
2096 | /* The arguments MAPS and NMAPS are for menu prompting. |
2097 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2098 | ||
2099 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2100 | the first event of a key sequence (or not reading a key sequence). |
2101 | If PREV_EVENT is t, that is a "magic" value that says | |
2102 | not to run input methods, but in other respects to act as if | |
2103 | not reading a key sequence. | |
7d6de002 | 2104 | |
83d68044 | 2105 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2106 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2107 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2108 | |
2109 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2110 | |
284f4730 | 2111 | Lisp_Object |
7d6de002 | 2112 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2113 | int commandflag; |
7d6de002 RS |
2114 | int nmaps; |
2115 | Lisp_Object *maps; | |
2116 | Lisp_Object prev_event; | |
2117 | int *used_mouse_menu; | |
284f4730 | 2118 | { |
8c907a56 | 2119 | volatile Lisp_Object c; |
284f4730 | 2120 | int count; |
410d4de9 | 2121 | jmp_buf local_getcjmp; |
284f4730 | 2122 | jmp_buf save_jump; |
8c907a56 | 2123 | volatile int key_already_recorded = 0; |
017c7cb6 | 2124 | Lisp_Object tem, save; |
8c907a56 GM |
2125 | volatile Lisp_Object previous_echo_area_message; |
2126 | volatile Lisp_Object also_record; | |
2127 | volatile int reread; | |
d5eecefb | 2128 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2129 | EMACS_TIME last_idle_start; |
7c3bc944 | 2130 | |
e4fe371d | 2131 | also_record = Qnil; |
284f4730 | 2132 | |
71918b75 RS |
2133 | before_command_key_count = this_command_key_count; |
2134 | before_command_echo_length = echo_length (); | |
ef6661f7 | 2135 | c = Qnil; |
7ee32cda | 2136 | previous_echo_area_message = Qnil; |
71918b75 | 2137 | |
7ee32cda | 2138 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2139 | |
7f07d5ca RS |
2140 | retry: |
2141 | ||
7d18f9ae RS |
2142 | reread = 0; |
2143 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2144 | { |
7539e11f | 2145 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2146 | Vunread_post_input_method_events |
7539e11f | 2147 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2148 | |
2479e91e RS |
2149 | /* Undo what read_char_x_menu_prompt did when it unread |
2150 | additional keys returned by Fx_popup_menu. */ | |
2151 | if (CONSP (c) | |
7539e11f KR |
2152 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2153 | && NILP (XCDR (c))) | |
2154 | c = XCAR (c); | |
2479e91e | 2155 | |
7d18f9ae RS |
2156 | reread = 1; |
2157 | goto reread_first; | |
284f4730 JB |
2158 | } |
2159 | ||
86e5706b RS |
2160 | if (unread_command_char != -1) |
2161 | { | |
18cd2eeb | 2162 | XSETINT (c, unread_command_char); |
86e5706b RS |
2163 | unread_command_char = -1; |
2164 | ||
7d18f9ae RS |
2165 | reread = 1; |
2166 | goto reread_first; | |
2167 | } | |
2168 | ||
2169 | if (CONSP (Vunread_command_events)) | |
2170 | { | |
7539e11f KR |
2171 | c = XCAR (Vunread_command_events); |
2172 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2173 | |
2174 | /* Undo what read_char_x_menu_prompt did when it unread | |
2175 | additional keys returned by Fx_popup_menu. */ | |
2176 | if (CONSP (c) | |
f4e05d97 GM |
2177 | && EQ (XCDR (c), Qdisabled) |
2178 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2179 | c = XCAR (c); |
f4e05d97 | 2180 | |
d17e49a8 GM |
2181 | /* If the queued event is something that used the mouse, |
2182 | set used_mouse_menu accordingly. */ | |
2183 | if (used_mouse_menu | |
2184 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2185 | *used_mouse_menu = 1; | |
2186 | ||
7d18f9ae RS |
2187 | reread = 1; |
2188 | goto reread_for_input_method; | |
2189 | } | |
2190 | ||
2191 | if (CONSP (Vunread_input_method_events)) | |
2192 | { | |
7539e11f KR |
2193 | c = XCAR (Vunread_input_method_events); |
2194 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2195 | |
2196 | /* Undo what read_char_x_menu_prompt did when it unread | |
2197 | additional keys returned by Fx_popup_menu. */ | |
2198 | if (CONSP (c) | |
7539e11f KR |
2199 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2200 | && NILP (XCDR (c))) | |
2201 | c = XCAR (c); | |
7d18f9ae RS |
2202 | reread = 1; |
2203 | goto reread_for_input_method; | |
86e5706b RS |
2204 | } |
2205 | ||
71918b75 RS |
2206 | /* If there is no function key translated before |
2207 | reset-this-command-lengths takes effect, forget about it. */ | |
2208 | before_command_restore_flag = 0; | |
2209 | ||
284f4730 JB |
2210 | if (!NILP (Vexecuting_macro)) |
2211 | { | |
fce33686 JB |
2212 | /* We set this to Qmacro; since that's not a frame, nobody will |
2213 | try to switch frames on us, and the selected window will | |
2214 | remain unchanged. | |
2215 | ||
2216 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2217 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2218 | real event came from. Normally, a switch-frame event selects |
2219 | internal_last_event_frame after each command is read, but | |
2220 | events read from a macro should never cause a new frame to be | |
2221 | selected. */ | |
4c52b668 | 2222 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2223 | |
663258f2 JB |
2224 | /* Exit the macro if we are at the end. |
2225 | Also, some things replace the macro with t | |
2226 | to force an early exit. */ | |
2227 | if (EQ (Vexecuting_macro, Qt) | |
2228 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2229 | { |
18cd2eeb | 2230 | XSETINT (c, -1); |
7c3bc944 | 2231 | RETURN_UNGCPRO (c); |
284f4730 | 2232 | } |
df0f2ba1 | 2233 | |
284f4730 | 2234 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2235 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2236 | && (XINT (c) & 0x80)) |
bb9e9bed | 2237 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2238 | |
284f4730 JB |
2239 | executing_macro_index++; |
2240 | ||
2241 | goto from_macro; | |
2242 | } | |
2243 | ||
cd21b839 JB |
2244 | if (!NILP (unread_switch_frame)) |
2245 | { | |
2246 | c = unread_switch_frame; | |
2247 | unread_switch_frame = Qnil; | |
2248 | ||
2249 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2250 | again, so we do not set `reread'. */ |
f4255cd1 | 2251 | goto reread_first; |
cd21b839 JB |
2252 | } |
2253 | ||
adc1d5c8 | 2254 | /* if redisplay was requested */ |
6e4e64a8 RS |
2255 | if (commandflag >= 0) |
2256 | { | |
adc1d5c8 RS |
2257 | /* If there is pending input, process any events which are not |
2258 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2259 | if (input_pending |
2260 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2261 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2262 | |
adc1d5c8 RS |
2263 | /* Redisplay if no pending input. */ |
2264 | while (!input_pending) | |
2265 | { | |
5295a500 | 2266 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2267 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2268 | else |
2269 | redisplay (); | |
adc1d5c8 RS |
2270 | |
2271 | if (!input_pending) | |
2272 | /* Normal case: no input arrived during redisplay. */ | |
2273 | break; | |
2274 | ||
2275 | /* Input arrived and pre-empted redisplay. | |
2276 | Process any events which are not user-visible. */ | |
2277 | swallow_events (0); | |
2278 | /* If that cleared input_pending, try again to redisplay. */ | |
2279 | } | |
6e4e64a8 | 2280 | } |
e9bf89a0 | 2281 | |
59a84f8e GM |
2282 | /* Message turns off echoing unless more keystrokes turn it on again. |
2283 | ||
2284 | The code in 20.x for the condition was | |
2285 | ||
2286 | 1. echo_area_glyphs && *echo_area_glyphs | |
2287 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2288 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2289 | ||
2290 | (1) means there's a current message displayed | |
2291 | ||
2292 | (2) means it's not the message from echoing from the current | |
2293 | kboard. | |
2294 | ||
2295 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause | |
2296 | is set to a non-null value. This is done in read_char and it is | |
2297 | set to echo_area_glyphs after a call to echo_char. That means | |
2298 | ok_to_echo_at_next_pause is either null or | |
2299 | current_kboard->echobuf with the appropriate current_kboard at | |
2300 | that time. | |
2301 | ||
2302 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2303 | must be either null, or the current message isn't from echoing at | |
2304 | all, or it's from echoing from a different kboard than the | |
2305 | current one. */ | |
2306 | ||
2307 | if (/* There currently something in the echo area */ | |
985f9f66 | 2308 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2309 | && (/* And it's either not from echoing. */ |
2310 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2311 | /* Or it's an echo from a different kboard. */ | |
2312 | || echo_kboard != current_kboard | |
2313 | /* Or we explicitly allow overwriting whatever there is. */ | |
2314 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2315 | cancel_echoing (); |
410d4de9 | 2316 | else |
410d4de9 | 2317 | echo_dash (); |
59a84f8e | 2318 | |
410d4de9 RS |
2319 | /* Try reading a character via menu prompting in the minibuf. |
2320 | Try this before the sit-for, because the sit-for | |
2321 | would do the wrong thing if we are supposed to do | |
2322 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2323 | after a mouse event so don't try a minibuf menu. */ | |
2324 | c = Qnil; | |
2325 | if (nmaps > 0 && INTERACTIVE | |
2326 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2327 | /* Don't bring up a menu if we already have another event. */ | |
2328 | && NILP (Vunread_command_events) | |
2329 | && unread_command_char < 0 | |
4ec4ed6a | 2330 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2331 | { |
2332 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2333 | if (! NILP (c)) | |
2334 | { | |
2335 | key_already_recorded = 1; | |
2336 | goto non_reread_1; | |
2337 | } | |
2338 | } | |
284f4730 | 2339 | |
410d4de9 RS |
2340 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2341 | We will do that below, temporarily for short sections of code, | |
2342 | when appropriate. local_getcjmp must be in effect | |
2343 | around any call to sit_for or kbd_buffer_get_event; | |
2344 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2345 | |
410d4de9 | 2346 | if (_setjmp (local_getcjmp)) |
284f4730 | 2347 | { |
18cd2eeb | 2348 | XSETINT (c, quit_char); |
788f89eb | 2349 | internal_last_event_frame = selected_frame; |
4c52b668 | 2350 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2351 | /* If we report the quit char as an event, |
2352 | don't do so more than once. */ | |
2353 | if (!NILP (Vinhibit_quit)) | |
2354 | Vquit_flag = Qnil; | |
284f4730 | 2355 | |
c5fdd383 | 2356 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2357 | { |
788f89eb | 2358 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2359 | if (kb != current_kboard) |
df0f2ba1 | 2360 | { |
c5fdd383 | 2361 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2362 | /* We shouldn't get here if we were in single-kboard mode! */ |
2363 | if (single_kboard) | |
df0f2ba1 KH |
2364 | abort (); |
2365 | while (CONSP (*tailp)) | |
7539e11f | 2366 | tailp = &XCDR (*tailp); |
df0f2ba1 KH |
2367 | if (!NILP (*tailp)) |
2368 | abort (); | |
2369 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2370 | kb->kbd_queue_has_data = 1; |
2371 | current_kboard = kb; | |
ef6661f7 RS |
2372 | /* This is going to exit from read_char |
2373 | so we had better get rid of this frame's stuff. */ | |
2374 | UNGCPRO; | |
c5fdd383 | 2375 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2376 | } |
2377 | } | |
2378 | #endif | |
284f4730 JB |
2379 | goto non_reread; |
2380 | } | |
2381 | ||
d9d4c147 KH |
2382 | timer_start_idle (); |
2383 | ||
284f4730 JB |
2384 | /* If in middle of key sequence and minibuffer not active, |
2385 | start echoing if enough time elapses. */ | |
410d4de9 | 2386 | |
7ee32cda GM |
2387 | if (minibuf_level == 0 |
2388 | && !current_kboard->immediate_echo | |
6c6083a9 | 2389 | && this_command_key_count > 0 |
27203ead | 2390 | && ! noninteractive |
f2647d04 DL |
2391 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2392 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2393 | && (/* No message. */ |
2394 | NILP (echo_area_buffer[0]) | |
2395 | /* Or empty message. */ | |
2396 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2397 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2398 | /* Or already echoing from same kboard. */ | |
2399 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2400 | /* Or not echoing before and echoing allowed. */ | |
2401 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2402 | { |
2403 | Lisp_Object tem0; | |
985f9f66 | 2404 | |
7d6de002 RS |
2405 | /* After a mouse event, start echoing right away. |
2406 | This is because we are probably about to display a menu, | |
2407 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2408 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2409 | echo_now (); |
7d6de002 RS |
2410 | else |
2411 | { | |
39aab679 DL |
2412 | int sec, usec; |
2413 | double duration = extract_float (Vecho_keystrokes); | |
2414 | sec = (int) duration; | |
15fa88ab | 2415 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2416 | save_getcjmp (save_jump); |
2417 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2418 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2419 | restore_getcjmp (save_jump); |
303b5b3f RS |
2420 | if (EQ (tem0, Qt) |
2421 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2422 | echo_now (); |
7d6de002 | 2423 | } |
284f4730 JB |
2424 | } |
2425 | ||
410d4de9 | 2426 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2427 | |
2428 | if (commandflag != 0 | |
2429 | && auto_save_interval > 0 | |
c43b1734 | 2430 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2431 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2432 | { |
284f4730 | 2433 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2434 | /* Hooks can actually change some buffers in auto save. */ |
2435 | redisplay (); | |
284f4730 JB |
2436 | } |
2437 | ||
8150596a | 2438 | /* Try reading using an X menu. |
24597608 RS |
2439 | This is never confused with reading using the minibuf |
2440 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2441 | does not pass on any keymaps. */ | |
410d4de9 | 2442 | |
24597608 | 2443 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2444 | && !NILP (prev_event) |
2445 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2446 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2447 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2448 | /* Don't bring up a menu if we already have another event. */ |
2449 | && NILP (Vunread_command_events) | |
b8556aee | 2450 | && unread_command_char < 0) |
8eb4d8ef RS |
2451 | { |
2452 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2453 | ||
2454 | /* Now that we have read an event, Emacs is not idle. */ | |
2455 | timer_stop_idle (); | |
2456 | ||
7c3bc944 | 2457 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2458 | } |
7d6de002 | 2459 | |
410d4de9 RS |
2460 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2461 | ||
26c1639e | 2462 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2463 | { |
2464 | int delay_level, buffer_size; | |
2465 | ||
410d4de9 RS |
2466 | /* Slow down auto saves logarithmically in size of current buffer, |
2467 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2468 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2469 | last_non_minibuf_size = Z - BEG; | |
2470 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2471 | delay_level = 0; | |
2472 | while (buffer_size > 64) | |
2473 | delay_level++, buffer_size -= buffer_size >> 2; | |
2474 | if (delay_level < 4) delay_level = 4; | |
2475 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2476 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2477 | ||
2478 | /* Auto save if enough time goes by without input. */ | |
2479 | if (commandflag != 0 | |
c43b1734 | 2480 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2481 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2482 | && XINT (Vauto_save_timeout) > 0) |
2483 | { | |
2484 | Lisp_Object tem0; | |
410d4de9 RS |
2485 | |
2486 | save_getcjmp (save_jump); | |
2487 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2488 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2489 | 0, 1, 1, 0); |
410d4de9 RS |
2490 | restore_getcjmp (save_jump); |
2491 | ||
303b5b3f RS |
2492 | if (EQ (tem0, Qt) |
2493 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2494 | { |
7d6de002 | 2495 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2496 | |
2497 | /* If we have auto-saved and there is still no input | |
2498 | available, garbage collect if there has been enough | |
2499 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2500 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2501 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2502 | Fgarbage_collect (); |
410d4de9 | 2503 | |
ef8fd672 | 2504 | redisplay (); |
7d6de002 RS |
2505 | } |
2506 | } | |
2507 | } | |
284f4730 | 2508 | |
303b5b3f RS |
2509 | /* If this has become non-nil here, it has been set by a timer |
2510 | or sentinel or filter. */ | |
2511 | if (CONSP (Vunread_command_events)) | |
2512 | { | |
7539e11f KR |
2513 | c = XCAR (Vunread_command_events); |
2514 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2515 | } |
2516 | ||
410d4de9 RS |
2517 | /* Read something from current KBOARD's side queue, if possible. */ |
2518 | ||
beecf6a1 | 2519 | if (NILP (c)) |
1e12dd87 | 2520 | { |
c5fdd383 | 2521 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2522 | { |
c5fdd383 | 2523 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2524 | abort (); |
7539e11f | 2525 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2526 | current_kboard->kbd_queue |
7539e11f | 2527 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2528 | if (NILP (current_kboard->kbd_queue)) |
2529 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2530 | input_pending = readable_events (0); |
4c52b668 KH |
2531 | if (EVENT_HAS_PARAMETERS (c) |
2532 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2533 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2534 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2535 | } |
1e8bd3da RS |
2536 | } |
2537 | ||
c5fdd383 | 2538 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2539 | /* If current_kboard's side queue is empty check the other kboards. |
2540 | If one of them has data that we have not yet seen here, | |
2541 | switch to it and process the data waiting for it. | |
2542 | ||
2543 | Note: if the events queued up for another kboard | |
2544 | have already been seen here, and therefore are not a complete command, | |
2545 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2546 | That's to avoid an infinite loop switching between kboards here. */ | |
2547 | if (NILP (c) && !single_kboard) | |
2548 | { | |
2549 | KBOARD *kb; | |
2550 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2551 | if (kb->kbd_queue_has_data) | |
2552 | { | |
2553 | current_kboard = kb; | |
ef6661f7 RS |
2554 | /* This is going to exit from read_char |
2555 | so we had better get rid of this frame's stuff. */ | |
2556 | UNGCPRO; | |
1e8bd3da RS |
2557 | longjmp (wrong_kboard_jmpbuf, 1); |
2558 | } | |
2559 | } | |
df0f2ba1 KH |
2560 | #endif |
2561 | ||
410d4de9 RS |
2562 | wrong_kboard: |
2563 | ||
2564 | stop_polling (); | |
2565 | ||
1e8bd3da RS |
2566 | /* Finally, we read from the main queue, |
2567 | and if that gives us something we can't use yet, we put it on the | |
2568 | appropriate side queue and try again. */ | |
410d4de9 | 2569 | |
1e8bd3da RS |
2570 | if (NILP (c)) |
2571 | { | |
2572 | KBOARD *kb; | |
2573 | ||
1e8bd3da | 2574 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2575 | save_getcjmp (save_jump); |
2576 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2577 | timer_start_idle (); |
83d68044 | 2578 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2579 | restore_getcjmp (save_jump); |
2580 | ||
c5fdd383 | 2581 | #ifdef MULTI_KBOARD |
410d4de9 | 2582 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2583 | { |
2584 | Lisp_Object *tailp = &kb->kbd_queue; | |
2585 | while (CONSP (*tailp)) | |
7539e11f | 2586 | tailp = &XCDR (*tailp); |
1e8bd3da RS |
2587 | if (!NILP (*tailp)) |
2588 | abort (); | |
2589 | *tailp = Fcons (c, Qnil); | |
2590 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2591 | c = Qnil; |
1e8bd3da RS |
2592 | if (single_kboard) |
2593 | goto wrong_kboard; | |
2594 | current_kboard = kb; | |
ef6661f7 RS |
2595 | /* This is going to exit from read_char |
2596 | so we had better get rid of this frame's stuff. */ | |
2597 | UNGCPRO; | |
1e8bd3da | 2598 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2599 | } |
1e8bd3da | 2600 | #endif |
beecf6a1 | 2601 | } |
1e8bd3da | 2602 | |
284f4730 | 2603 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2604 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2605 | Fkill_emacs (make_number (1)); |
2606 | ||
8c18cbfb | 2607 | if (INTEGERP (c)) |
80645119 JB |
2608 | { |
2609 | /* Add in any extra modifiers, where appropriate. */ | |
2610 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2611 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2612 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2613 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2614 | |
2615 | /* Transfer any other modifier bits directly from | |
2616 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2617 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2618 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2619 | } |
9fa4395d | 2620 | |
284f4730 JB |
2621 | non_reread: |
2622 | ||
fdbb67fe GM |
2623 | /* Record the last idle start time so that we can reset it |
2624 | should the next event read be a help-echo. */ | |
2625 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2626 | timer_stop_idle (); |
284f4730 JB |
2627 | start_polling (); |
2628 | ||
410d4de9 RS |
2629 | if (NILP (c)) |
2630 | { | |
2631 | if (commandflag >= 0 | |
4ec4ed6a | 2632 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2633 | redisplay (); |
2634 | ||
2635 | goto wrong_kboard; | |
2636 | } | |
2637 | ||
2638 | non_reread_1: | |
2639 | ||
dfd11da7 | 2640 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2641 | so don't show them to the user. |
2642 | Also, don't record a key if we already did. */ | |
2643 | if (BUFFERP (c) || key_already_recorded) | |
2644 | RETURN_UNGCPRO (c); | |
a1341f75 | 2645 | |
7f07d5ca RS |
2646 | /* Process special events within read_char |
2647 | and loop around to read another event. */ | |
017c7cb6 RS |
2648 | save = Vquit_flag; |
2649 | Vquit_flag = Qnil; | |
02067692 | 2650 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2651 | Vquit_flag = save; |
7f07d5ca RS |
2652 | |
2653 | if (!NILP (tem)) | |
2654 | { | |
ba8dfba8 RS |
2655 | int was_locked = single_kboard; |
2656 | ||
7f07d5ca | 2657 | last_input_char = c; |
158f7532 | 2658 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2659 | |
2660 | /* Resume allowing input from any kboard, if that was true before. */ | |
2661 | if (!was_locked) | |
2662 | any_kboard_state (); | |
2663 | ||
7f07d5ca RS |
2664 | goto retry; |
2665 | } | |
2666 | ||
284f4730 | 2667 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2668 | if (INTEGERP (c)) |
284f4730 JB |
2669 | { |
2670 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2671 | if (XINT (c) == -1) |
7c3bc944 | 2672 | RETURN_UNGCPRO (c); |
284f4730 | 2673 | |
301738ed RS |
2674 | if ((STRINGP (Vkeyboard_translate_table) |
2675 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2676 | || (VECTORP (Vkeyboard_translate_table) | |
2677 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2678 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2679 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2680 | { |
2681 | Lisp_Object d; | |
2682 | d = Faref (Vkeyboard_translate_table, c); | |
2683 | /* nil in keyboard-translate-table means no translation. */ | |
2684 | if (!NILP (d)) | |
2685 | c = d; | |
2686 | } | |
284f4730 JB |
2687 | } |
2688 | ||
e4fe371d RS |
2689 | /* If this event is a mouse click in the menu bar, |
2690 | return just menu-bar for now. Modify the mouse click event | |
2691 | so we won't do this twice, then queue it up. */ | |
2692 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2693 | && CONSP (XCDR (c)) |
e4fe371d | 2694 | && CONSP (EVENT_START (c)) |
7539e11f | 2695 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2696 | { |
e4fe371d | 2697 | Lisp_Object posn; |
284f4730 | 2698 | |
e4fe371d RS |
2699 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2700 | /* Handle menu-bar events: | |
2701 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2702 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2703 | { |
2704 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2705 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2706 | |
e4fe371d RS |
2707 | also_record = c; |
2708 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2709 | c = posn; | |
284f4730 | 2710 | } |
284f4730 JB |
2711 | } |
2712 | ||
7d18f9ae RS |
2713 | /* Store these characters into recent_keys, the dribble file if any, |
2714 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2715 | record_char (c); |
2716 | if (! NILP (also_record)) | |
2717 | record_char (also_record); | |
51172b6d | 2718 | |
d5eecefb RS |
2719 | /* Wipe the echo area. |
2720 | But first, if we are about to use an input method, | |
2721 | save the echo area contents for it to refer to. */ | |
2722 | if (INTEGERP (c) | |
2723 | && ! NILP (Vinput_method_function) | |
2724 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2725 | && (unsigned) XINT (c) != 127 |
2726 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2727 | { |
2728 | previous_echo_area_message = Fcurrent_message (); | |
2729 | Vinput_method_previous_message = previous_echo_area_message; | |
2730 | } | |
d5eecefb | 2731 | |
1172eb8d GM |
2732 | /* Now wipe the echo area, except for help events which do their |
2733 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2734 | if (!CONSP (c) |
2735 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2736 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2737 | { |
2738 | if (!NILP (echo_area_buffer[0])) | |
2739 | safe_run_hooks (Qecho_area_clear_hook); | |
2740 | clear_message (1, 0); | |
2741 | } | |
d5eecefb | 2742 | |
7d18f9ae | 2743 | reread_for_input_method: |
284f4730 | 2744 | from_macro: |
7d18f9ae | 2745 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2746 | if (INTEGERP (c) |
2747 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2748 | /* Don't run the input method within a key sequence, |
2749 | after the first event of the key sequence. */ | |
2750 | && NILP (prev_event) | |
d5eecefb | 2751 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2752 | && (unsigned) XINT (c) != 127 |
2753 | && (unsigned) XINT (c) < 256) | |
d5eecefb RS |
2754 | { |
2755 | Lisp_Object keys; | |
6e5742a0 | 2756 | int key_count; |
d5eecefb | 2757 | struct gcpro gcpro1; |
b638f328 | 2758 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2759 | |
6e5742a0 RS |
2760 | /* Save the echo status. */ |
2761 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2762 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2763 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2764 | ||
2765 | if (before_command_restore_flag) | |
2766 | { | |
2767 | this_command_key_count = before_command_key_count_1; | |
2768 | if (this_command_key_count < this_single_command_key_start) | |
2769 | this_single_command_key_start = this_command_key_count; | |
2770 | echo_truncate (before_command_echo_length_1); | |
2771 | before_command_restore_flag = 0; | |
2772 | } | |
2773 | ||
2774 | /* Save the this_command_keys status. */ | |
2775 | key_count = this_command_key_count; | |
2776 | ||
2777 | if (key_count > 0) | |
2778 | keys = Fcopy_sequence (this_command_keys); | |
2779 | else | |
2780 | keys = Qnil; | |
d5eecefb | 2781 | GCPRO1 (keys); |
6e5742a0 RS |
2782 | |
2783 | /* Clear out this_command_keys. */ | |
2784 | this_command_key_count = 0; | |
2785 | ||
2786 | /* Now wipe the echo area. */ | |
985f9f66 | 2787 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2788 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2789 | clear_message (1, 0); |
6e5742a0 RS |
2790 | echo_truncate (0); |
2791 | ||
b638f328 RS |
2792 | /* If we are not reading a key sequence, |
2793 | never use the echo area. */ | |
2794 | if (maps == 0) | |
2795 | { | |
b638f328 RS |
2796 | specbind (Qinput_method_use_echo_area, Qt); |
2797 | } | |
2798 | ||
6e5742a0 | 2799 | /* Call the input method. */ |
d5eecefb | 2800 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2801 | |
2802 | tem = unbind_to (count, tem); | |
2803 | ||
6e5742a0 RS |
2804 | /* Restore the saved echoing state |
2805 | and this_command_keys state. */ | |
2806 | this_command_key_count = key_count; | |
2807 | if (key_count > 0) | |
2808 | this_command_keys = keys; | |
2809 | ||
2810 | cancel_echoing (); | |
2811 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2812 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2813 | if (saved_immediate_echo) | |
2814 | echo_now (); | |
2815 | ||
d5eecefb | 2816 | UNGCPRO; |
6e5742a0 | 2817 | |
d5eecefb RS |
2818 | /* The input method can return no events. */ |
2819 | if (! CONSP (tem)) | |
7d18f9ae | 2820 | { |
d5eecefb | 2821 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2822 | if (! NILP (previous_echo_area_message)) |
2823 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2824 | goto retry; |
7d18f9ae | 2825 | } |
d5eecefb | 2826 | /* It returned one event or more. */ |
7539e11f | 2827 | c = XCAR (tem); |
d5eecefb | 2828 | Vunread_post_input_method_events |
7539e11f | 2829 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2830 | } |
7c3bc944 | 2831 | |
7d18f9ae | 2832 | reread_first: |
284f4730 | 2833 | |
7ee32cda | 2834 | /* Display help if not echoing. */ |
1172eb8d | 2835 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 2836 | { |
2190735a GM |
2837 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
2838 | Lisp_Object help, object, position, window; | |
8dfd92c9 | 2839 | help = Fnth (make_number (2), c); |
2190735a GM |
2840 | window = Fnth (make_number (3), c); |
2841 | object = Fnth (make_number (4), c); | |
2842 | position = Fnth (make_number (5), c); | |
2843 | show_help_echo (help, window, object, position, 0); | |
fdbb67fe GM |
2844 | |
2845 | /* We stopped being idle for this event; undo that. */ | |
2846 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
2847 | goto retry; |
2848 | } | |
2849 | ||
7d18f9ae | 2850 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2851 | { |
7d18f9ae RS |
2852 | before_command_key_count = this_command_key_count; |
2853 | before_command_echo_length = echo_length (); | |
2854 | ||
2855 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2856 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2857 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2858 | && ! (EVENT_HAS_PARAMETERS (c) |
2859 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2860 | { | |
2861 | echo_char (c); | |
2862 | if (! NILP (also_record)) | |
2863 | echo_char (also_record); | |
2864 | /* Once we reread a character, echoing can happen | |
2865 | the next time we pause to read a new one. */ | |
985f9f66 | 2866 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2867 | } |
2868 | ||
2869 | /* Record this character as part of the current key. */ | |
2870 | add_command_key (c); | |
e4fe371d | 2871 | if (! NILP (also_record)) |
7d18f9ae | 2872 | add_command_key (also_record); |
e4fe371d | 2873 | } |
b8556aee | 2874 | |
284f4730 | 2875 | last_input_char = c; |
c43b1734 | 2876 | num_input_events++; |
284f4730 JB |
2877 | |
2878 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2879 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2880 | { |
2881 | Lisp_Object tem0; | |
2882 | count = specpdl_ptr - specpdl; | |
2883 | ||
2884 | record_unwind_protect (Fset_window_configuration, | |
2885 | Fcurrent_window_configuration (Qnil)); | |
2886 | ||
2887 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2888 | if (STRINGP (tem0)) |
284f4730 JB |
2889 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2890 | ||
2891 | cancel_echoing (); | |
3cb81011 KH |
2892 | do |
2893 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2894 | while (BUFFERP (c)); |
ff11dfa1 | 2895 | /* Remove the help from the frame */ |
284f4730 | 2896 | unbind_to (count, Qnil); |
410d4de9 | 2897 | |
284f4730 JB |
2898 | redisplay (); |
2899 | if (EQ (c, make_number (040))) | |
2900 | { | |
2901 | cancel_echoing (); | |
3cb81011 KH |
2902 | do |
2903 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2904 | while (BUFFERP (c)); |
284f4730 JB |
2905 | } |
2906 | } | |
2907 | ||
7c3bc944 | 2908 | RETURN_UNGCPRO (c); |
284f4730 JB |
2909 | } |
2910 | ||
8eb4d8ef RS |
2911 | /* Record a key that came from a mouse menu. |
2912 | Record it for echoing, for this-command-keys, and so on. */ | |
2913 | ||
2914 | static void | |
2915 | record_menu_key (c) | |
2916 | Lisp_Object c; | |
2917 | { | |
2918 | /* Wipe the echo area. */ | |
985f9f66 | 2919 | clear_message (1, 0); |
8eb4d8ef RS |
2920 | |
2921 | record_char (c); | |
2922 | ||
2923 | before_command_key_count = this_command_key_count; | |
2924 | before_command_echo_length = echo_length (); | |
2925 | ||
2926 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2927 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2928 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
2929 | { |
2930 | echo_char (c); | |
2931 | ||
2932 | /* Once we reread a character, echoing can happen | |
2933 | the next time we pause to read a new one. */ | |
2934 | ok_to_echo_at_next_pause = 0; | |
2935 | } | |
2936 | ||
2937 | /* Record this character as part of the current key. */ | |
2938 | add_command_key (c); | |
2939 | ||
2940 | /* Re-reading in the middle of a command */ | |
2941 | last_input_char = c; | |
c43b1734 | 2942 | num_input_events++; |
8eb4d8ef RS |
2943 | } |
2944 | ||
ecb7cb34 KH |
2945 | /* Return 1 if should recognize C as "the help character". */ |
2946 | ||
2947 | int | |
2948 | help_char_p (c) | |
2949 | Lisp_Object c; | |
2950 | { | |
2951 | Lisp_Object tail; | |
2952 | ||
2953 | if (EQ (c, Vhelp_char)) | |
2954 | return 1; | |
7539e11f KR |
2955 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
2956 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
2957 | return 1; |
2958 | return 0; | |
2959 | } | |
2960 | ||
e4fe371d RS |
2961 | /* Record the input event C in various ways. */ |
2962 | ||
2963 | static void | |
2964 | record_char (c) | |
2965 | Lisp_Object c; | |
2966 | { | |
e8a50785 | 2967 | /* Don't record `help-echo' in recent_keys unless it shows some help |
52be17cc GM |
2968 | message, and a different help than the previoiusly recorded |
2969 | event. */ | |
2970 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) | |
2971 | { | |
2972 | Lisp_Object help; | |
2973 | ||
2974 | help = Fnth (make_number (2), c); | |
2975 | if (STRINGP (help)) | |
2976 | { | |
2977 | int last_idx; | |
2978 | Lisp_Object last_c, last_help; | |
2979 | ||
2980 | last_idx = recent_keys_index - 1; | |
2981 | if (last_idx < 0) | |
2982 | last_idx = NUM_RECENT_KEYS - 1; | |
2983 | last_c = AREF (recent_keys, last_idx); | |
2984 | ||
2985 | if (!CONSP (last_c) | |
2986 | || !EQ (XCAR (last_c), Qhelp_echo) | |
2987 | || (last_help = Fnth (make_number (2), last_c), | |
2988 | !EQ (last_help, help))) | |
2989 | { | |
2990 | total_keys++; | |
2991 | ASET (recent_keys, recent_keys_index, c); | |
2992 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2993 | recent_keys_index = 0; | |
2994 | } | |
2995 | } | |
2996 | } | |
2997 | else | |
e8a50785 GM |
2998 | { |
2999 | total_keys++; | |
3000 | ASET (recent_keys, recent_keys_index, c); | |
3001 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3002 | recent_keys_index = 0; | |
3003 | } | |
52be17cc | 3004 | |
e4fe371d RS |
3005 | /* Write c to the dribble file. If c is a lispy event, write |
3006 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3007 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3008 | if (dribble) | |
3009 | { | |
3010 | if (INTEGERP (c)) | |
3011 | { | |
3012 | if (XUINT (c) < 0x100) | |
3013 | putc (XINT (c), dribble); | |
3014 | else | |
6de34814 | 3015 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3016 | } |
3017 | else | |
3018 | { | |
3019 | Lisp_Object dribblee; | |
3020 | ||
3021 | /* If it's a structured event, take the event header. */ | |
3022 | dribblee = EVENT_HEAD (c); | |
3023 | ||
3024 | if (SYMBOLP (dribblee)) | |
3025 | { | |
3026 | putc ('<', dribble); | |
3027 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 3028 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
3029 | dribble); |
3030 | putc ('>', dribble); | |
3031 | } | |
3032 | } | |
3033 | ||
3034 | fflush (dribble); | |
3035 | } | |
3036 | ||
e8a50785 GM |
3037 | if (!CONSP (c) || !EQ (Qhelp_echo, XCAR (c))) |
3038 | store_kbd_macro_char (c); | |
e4fe371d | 3039 | |
c43b1734 | 3040 | num_nonmacro_input_events++; |
e4fe371d RS |
3041 | } |
3042 | ||
284f4730 JB |
3043 | Lisp_Object |
3044 | print_help (object) | |
3045 | Lisp_Object object; | |
3046 | { | |
622de3e9 | 3047 | struct buffer *old = current_buffer; |
284f4730 | 3048 | Fprinc (object, Qnil); |
622de3e9 KH |
3049 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3050 | call0 (intern ("help-mode")); | |
3051 | set_buffer_internal (old); | |
284f4730 JB |
3052 | return Qnil; |
3053 | } | |
3054 | ||
3055 | /* Copy out or in the info on where C-g should throw to. | |
3056 | This is used when running Lisp code from within get_char, | |
3057 | in case get_char is called recursively. | |
3058 | See read_process_output. */ | |
3059 | ||
dfcf069d | 3060 | static void |
284f4730 JB |
3061 | save_getcjmp (temp) |
3062 | jmp_buf temp; | |
3063 | { | |
3064 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3065 | } | |
3066 | ||
dfcf069d | 3067 | static void |
284f4730 JB |
3068 | restore_getcjmp (temp) |
3069 | jmp_buf temp; | |
3070 | { | |
3071 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3072 | } | |
284f4730 | 3073 | \f |
2eb6bfbe RM |
3074 | #ifdef HAVE_MOUSE |
3075 | ||
284f4730 JB |
3076 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3077 | of this function. */ | |
a9d77f1f | 3078 | |
284f4730 JB |
3079 | static Lisp_Object |
3080 | tracking_off (old_value) | |
3081 | Lisp_Object old_value; | |
3082 | { | |
71edead1 RS |
3083 | do_mouse_tracking = old_value; |
3084 | if (NILP (old_value)) | |
284f4730 | 3085 | { |
284f4730 JB |
3086 | /* Redisplay may have been preempted because there was input |
3087 | available, and it assumes it will be called again after the | |
3088 | input has been processed. If the only input available was | |
3089 | the sort that we have just disabled, then we need to call | |
3090 | redisplay. */ | |
d9d4c147 | 3091 | if (!readable_events (1)) |
284f4730 | 3092 | { |
3007ebfb | 3093 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3094 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3095 | } |
3096 | } | |
30690496 | 3097 | return Qnil; |
284f4730 JB |
3098 | } |
3099 | ||
3100 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
3101 | "Evaluate BODY with mouse movement events enabled.\n\ |
3102 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
3103 | you can read with `read-event'.\n\ | |
3104 | Normally, mouse motion is ignored.") | |
284f4730 JB |
3105 | (args) |
3106 | Lisp_Object args; | |
3107 | { | |
3108 | int count = specpdl_ptr - specpdl; | |
3109 | Lisp_Object val; | |
3110 | ||
a9d77f1f | 3111 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3112 | |
f3253854 | 3113 | do_mouse_tracking = Qt; |
df0f2ba1 | 3114 | |
284f4730 JB |
3115 | val = Fprogn (args); |
3116 | return unbind_to (count, val); | |
3117 | } | |
2eb6bfbe | 3118 | |
f3253854 KH |
3119 | /* If mouse has moved on some frame, return one of those frames. |
3120 | Return 0 otherwise. */ | |
3121 | ||
3122 | static FRAME_PTR | |
3123 | some_mouse_moved () | |
3124 | { | |
3125 | Lisp_Object tail, frame; | |
3126 | ||
3127 | FOR_EACH_FRAME (tail, frame) | |
3128 | { | |
3129 | if (XFRAME (frame)->mouse_moved) | |
3130 | return XFRAME (frame); | |
3131 | } | |
3132 | ||
3133 | return 0; | |
3134 | } | |
3135 | ||
2eb6bfbe | 3136 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3137 | \f |
3138 | /* Low level keyboard/mouse input. | |
3139 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3140 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3141 | |
3142 | /* Return true iff there are any events in the queue that read-char | |
3143 | would return. If this returns false, a read-char would block. */ | |
3144 | static int | |
d9d4c147 KH |
3145 | readable_events (do_timers_now) |
3146 | int do_timers_now; | |
a612e298 | 3147 | { |
4ec4ed6a RS |
3148 | if (do_timers_now) |
3149 | timer_check (do_timers_now); | |
3150 | ||
beecf6a1 KH |
3151 | if (kbd_fetch_ptr != kbd_store_ptr) |
3152 | return 1; | |
3153 | #ifdef HAVE_MOUSE | |
f3253854 | 3154 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3155 | return 1; |
3156 | #endif | |
1e8bd3da | 3157 | if (single_kboard) |
4c52b668 | 3158 | { |
c5fdd383 | 3159 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3160 | return 1; |
3161 | } | |
3162 | else | |
3163 | { | |
c5fdd383 KH |
3164 | KBOARD *kb; |
3165 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3166 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3167 | return 1; |
3168 | } | |
beecf6a1 | 3169 | return 0; |
a612e298 RS |
3170 | } |
3171 | ||
3172 | /* Set this for debugging, to have a way to get out */ | |
3173 | int stop_character; | |
284f4730 | 3174 | |
c5fdd383 KH |
3175 | #ifdef MULTI_KBOARD |
3176 | static KBOARD * | |
3177 | event_to_kboard (event) | |
5798cf15 KH |
3178 | struct input_event *event; |
3179 | { | |
3180 | Lisp_Object frame; | |
3181 | frame = event->frame_or_window; | |
3182 | if (CONSP (frame)) | |
7539e11f | 3183 | frame = XCAR (frame); |
5798cf15 KH |
3184 | else if (WINDOWP (frame)) |
3185 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3186 | ||
3187 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3188 | For now, just ignore the problem. |
3189 | Also ignore dead frames here. */ | |
3190 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3191 | return 0; |
3192 | else | |
c5fdd383 | 3193 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3194 | } |
3195 | #endif | |
3196 | ||
284f4730 JB |
3197 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3198 | ||
3199 | void | |
3200 | kbd_buffer_store_event (event) | |
3201 | register struct input_event *event; | |
3202 | { | |
3203 | if (event->kind == no_event) | |
3204 | abort (); | |
3205 | ||
3206 | if (event->kind == ascii_keystroke) | |
3207 | { | |
e9bf89a0 | 3208 | register int c = event->code & 0377; |
284f4730 | 3209 | |
faf5e407 JB |
3210 | if (event->modifiers & ctrl_modifier) |
3211 | c = make_ctrl_char (c); | |
3212 | ||
9fd7d808 RS |
3213 | c |= (event->modifiers |
3214 | & (meta_modifier | alt_modifier | |
3215 | | hyper_modifier | super_modifier)); | |
3216 | ||
86e5706b | 3217 | if (c == quit_char) |
284f4730 | 3218 | { |
3e51c7b7 | 3219 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
3220 | #ifdef MULTI_KBOARD |
3221 | KBOARD *kb; | |
5798cf15 KH |
3222 | struct input_event *sp; |
3223 | ||
1e8bd3da | 3224 | if (single_kboard |
c5fdd383 KH |
3225 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3226 | kb != current_kboard)) | |
5798cf15 | 3227 | { |
c5fdd383 | 3228 | kb->kbd_queue |
5798cf15 KH |
3229 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3230 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3231 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3232 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3233 | { | |
3234 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3235 | sp = kbd_buffer; | |
3236 | ||
c5fdd383 | 3237 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
3238 | { |
3239 | sp->kind = no_event; | |
3240 | sp->frame_or_window = Qnil; | |
da8f7368 | 3241 | sp->arg = Qnil; |
5798cf15 KH |
3242 | } |
3243 | } | |
3244 | return; | |
3245 | } | |
3246 | #endif | |
3e51c7b7 | 3247 | |
284f4730 | 3248 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3249 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3250 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3251 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3252 | { |
9b8eb840 | 3253 | Lisp_Object focus; |
4bb994d1 | 3254 | |
9b8eb840 | 3255 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3256 | if (NILP (focus)) |
beecf6a1 | 3257 | focus = event->frame_or_window; |
4c52b668 KH |
3258 | internal_last_event_frame = focus; |
3259 | Vlast_event_frame = focus; | |
4bb994d1 | 3260 | } |
3e51c7b7 | 3261 | |
ffd56f97 | 3262 | last_event_timestamp = event->timestamp; |
284f4730 JB |
3263 | interrupt_signal (); |
3264 | return; | |
3265 | } | |
3266 | ||
3267 | if (c && c == stop_character) | |
3268 | { | |
3269 | sys_suspend (); | |
3270 | return; | |
3271 | } | |
284f4730 | 3272 | } |
3fe8e9a2 RS |
3273 | /* Don't insert two buffer_switch_event's in a row. |
3274 | Just ignore the second one. */ | |
3275 | else if (event->kind == buffer_switch_event | |
3276 | && kbd_fetch_ptr != kbd_store_ptr | |
3277 | && kbd_store_ptr->kind == buffer_switch_event) | |
3278 | return; | |
284f4730 | 3279 | |
beecf6a1 KH |
3280 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3281 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3282 | |
3283 | /* Don't let the very last slot in the buffer become full, | |
3284 | since that would make the two pointers equal, | |
3285 | and that is indistinguishable from an empty buffer. | |
3286 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3287 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3288 | { |
da8f7368 GM |
3289 | int idx; |
3290 | ||
3291 | #if 0 /* The selection_request_event case looks bogus, and it's error | |
3292 | prone to assign individual members for other events, in case | |
3293 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3294 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3295 | sp->kind = event->kind; |
27203ead RS |
3296 | if (event->kind == selection_request_event) |
3297 | { | |
3298 | /* We must not use the ordinary copying code for this case, | |
3299 | since `part' is an enum and copying it might not copy enough | |
3300 | in this case. */ | |
612b78ef | 3301 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3302 | } |
3303 | else | |
da8f7368 | 3304 | |
27203ead | 3305 | { |
612b78ef KH |
3306 | sp->code = event->code; |
3307 | sp->part = event->part; | |
3308 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3309 | sp->arg = event->arg; |
612b78ef KH |
3310 | sp->modifiers = event->modifiers; |
3311 | sp->x = event->x; | |
3312 | sp->y = event->y; | |
3313 | sp->timestamp = event->timestamp; | |
27203ead | 3314 | } |
da8f7368 GM |
3315 | #else |
3316 | *kbd_store_ptr = *event; | |
3317 | #endif | |
284f4730 | 3318 | |
da8f7368 GM |
3319 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3320 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3321 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3322 | ++kbd_store_ptr; | |
284f4730 JB |
3323 | } |
3324 | } | |
8dfd92c9 GM |
3325 | |
3326 | ||
f139e559 | 3327 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3328 | SIZE events. If there's not enough room in BUFP, ignore this |
3329 | event. | |
8dfd92c9 GM |
3330 | |
3331 | HELP is the help form. | |
3332 | ||
3333 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3334 | Lisp object where the help was found (a buffer, a string, an |
3335 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3336 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3337 | |
3338 | Value is the number of input_events generated. */ | |
3339 | ||
3340 | int | |
0bbfdc25 | 3341 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3342 | struct input_event *bufp; |
0bbfdc25 | 3343 | int size; |
2190735a | 3344 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3345 | int pos; |
3346 | { | |
0bbfdc25 GM |
3347 | int nevents_stored = 0; |
3348 | ||
3349 | if (size >= 2) | |
3350 | { | |
3351 | bufp->kind = HELP_EVENT; | |
3352 | bufp->frame_or_window = frame; | |
3353 | bufp->arg = object; | |
3354 | bufp->x = make_number (pos); | |
3355 | bufp->code = 0; | |
8dfd92c9 | 3356 | |
0bbfdc25 GM |
3357 | ++bufp; |
3358 | bufp->kind = HELP_EVENT; | |
3359 | bufp->frame_or_window = WINDOWP (window) ? window : frame; | |
3360 | bufp->arg = help; | |
3361 | bufp->code = 1; | |
3362 | nevents_stored = 2; | |
3363 | } | |
2190735a | 3364 | |
0bbfdc25 | 3365 | return nevents_stored; |
8dfd92c9 GM |
3366 | } |
3367 | ||
3368 | ||
3369 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3370 | ||
3371 | void | |
3372 | kbd_buffer_store_help_event (frame, help) | |
3373 | Lisp_Object frame, help; | |
3374 | { | |
3375 | struct input_event event; | |
3376 | ||
3377 | event.kind = HELP_EVENT; | |
3378 | event.frame_or_window = frame; | |
3379 | event.arg = Qnil; | |
3380 | event.x = make_number (0); | |
3381 | event.code = 0; | |
3382 | kbd_buffer_store_event (&event); | |
3383 | ||
3384 | event.kind = HELP_EVENT; | |
3385 | event.frame_or_window = frame; | |
3386 | event.arg = help; | |
3387 | event.x = make_number (0); | |
3388 | event.code = 1; | |
3389 | kbd_buffer_store_event (&event); | |
3390 | } | |
3391 | ||
a612e298 | 3392 | \f |
07de30b9 GV |
3393 | /* Discard any mouse events in the event buffer by setting them to |
3394 | no_event. */ | |
3395 | void | |
3396 | discard_mouse_events () | |
3397 | { | |
3398 | struct input_event *sp; | |
3399 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3400 | { | |
3401 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3402 | sp = kbd_buffer; | |
3403 | ||
3404 | if (sp->kind == mouse_click | |
3405 | #ifdef WINDOWSNT | |
3406 | || sp->kind == w32_scroll_bar_click | |
3407 | #endif | |
3408 | || sp->kind == scroll_bar_click) | |
3409 | { | |
3410 | sp->kind = no_event; | |
3411 | } | |
3412 | } | |
3413 | } | |
eeabfe76 | 3414 | |
0bbfdc25 GM |
3415 | |
3416 | /* Return non-zero if there are any real events waiting in the event | |
3417 | buffer, not counting `no_event's. | |
3418 | ||
3419 | If DISCARD is non-zero, discard no_event events at the front of | |
3420 | the input queue, possibly leaving the input queue empty if there | |
3421 | are no real input events. */ | |
3422 | ||
eeabfe76 EZ |
3423 | int |
3424 | kbd_buffer_events_waiting (discard) | |
3425 | int discard; | |
3426 | { | |
3427 | struct input_event *sp; | |
0bbfdc25 GM |
3428 | |
3429 | for (sp = kbd_fetch_ptr; | |
3430 | sp != kbd_store_ptr && sp->kind == no_event; | |
3431 | ++sp) | |
eeabfe76 EZ |
3432 | { |
3433 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3434 | sp = kbd_buffer; | |
eeabfe76 | 3435 | } |
0bbfdc25 | 3436 | |
eeabfe76 EZ |
3437 | if (discard) |
3438 | kbd_fetch_ptr = sp; | |
0bbfdc25 GM |
3439 | |
3440 | return sp != kbd_store_ptr && sp->kind != no_event; | |
eeabfe76 | 3441 | } |
0bbfdc25 | 3442 | |
07de30b9 | 3443 | \f |
0bbfdc25 GM |
3444 | /* Clear input event EVENT. */ |
3445 | ||
3446 | static INLINE void | |
3447 | clear_event (event) | |
3448 | struct input_event *event; | |
3449 | { | |
3450 | int idx = 2 * (event - kbd_buffer); | |
3451 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3452 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3453 | event->kind = no_event; | |
3454 | } | |
3455 | ||
3456 | ||
a612e298 RS |
3457 | /* Read one event from the event buffer, waiting if necessary. |
3458 | The value is a Lisp object representing the event. | |
3459 | The value is nil for an event that should be ignored, | |
3460 | or that was handled here. | |
3461 | We always read and discard one event. */ | |
284f4730 JB |
3462 | |
3463 | static Lisp_Object | |
83d68044 | 3464 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3465 | KBOARD **kbp; |
83d68044 | 3466 | int *used_mouse_menu; |
284f4730 JB |
3467 | { |
3468 | register int c; | |
3469 | Lisp_Object obj; | |
3470 | ||
3471 | if (noninteractive) | |
3472 | { | |
3473 | c = getchar (); | |
18cd2eeb | 3474 | XSETINT (obj, c); |
f5b56972 | 3475 | *kbp = current_kboard; |
284f4730 JB |
3476 | return obj; |
3477 | } | |
3478 | ||
3479 | /* Wait until there is input available. */ | |
3480 | for (;;) | |
3481 | { | |
beecf6a1 KH |
3482 | if (kbd_fetch_ptr != kbd_store_ptr) |
3483 | break; | |
3484 | #ifdef HAVE_MOUSE | |
f3253854 | 3485 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3486 | break; |
beecf6a1 | 3487 | #endif |
284f4730 JB |
3488 | |
3489 | /* If the quit flag is set, then read_char will return | |
3490 | quit_char, so that counts as "available input." */ | |
3491 | if (!NILP (Vquit_flag)) | |
3492 | quit_throw_to_read_char (); | |
3493 | ||
3494 | /* One way or another, wait until input is available; then, if | |
3495 | interrupt handlers have not read it, read it now. */ | |
3496 | ||
3497 | #ifdef OLDVMS | |
3498 | wait_for_kbd_input (); | |
3499 | #else | |
3500 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3501 | #ifdef SIGIO | |
3502 | gobble_input (0); | |
3503 | #endif /* SIGIO */ | |
beecf6a1 KH |
3504 | if (kbd_fetch_ptr != kbd_store_ptr) |
3505 | break; | |
3506 | #ifdef HAVE_MOUSE | |
f3253854 | 3507 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3508 | break; |
3509 | #endif | |
3510 | { | |
3511 | Lisp_Object minus_one; | |
f76475ad | 3512 | |
beecf6a1 | 3513 | XSETINT (minus_one, -1); |
d9d4c147 | 3514 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3515 | |
beecf6a1 KH |
3516 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3517 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3518 | read_avail_input (1); | |
3519 | } | |
284f4730 JB |
3520 | #endif /* not VMS */ |
3521 | } | |
3522 | ||
303b5b3f RS |
3523 | if (CONSP (Vunread_command_events)) |
3524 | { | |
3525 | Lisp_Object first; | |
7539e11f KR |
3526 | first = XCAR (Vunread_command_events); |
3527 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3528 | *kbp = current_kboard; |
3529 | return first; | |
3530 | } | |
3531 | ||
284f4730 JB |
3532 | /* At this point, we know that there is a readable event available |
3533 | somewhere. If the event queue is empty, then there must be a | |
3534 | mouse movement enabled and available. */ | |
beecf6a1 | 3535 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3536 | { |
cd21b839 | 3537 | struct input_event *event; |
3e51c7b7 | 3538 | |
beecf6a1 KH |
3539 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3540 | ? kbd_fetch_ptr | |
3541 | : kbd_buffer); | |
3e51c7b7 | 3542 | |
cd21b839 | 3543 | last_event_timestamp = event->timestamp; |
cd21b839 | 3544 | |
c5fdd383 KH |
3545 | #ifdef MULTI_KBOARD |
3546 | *kbp = event_to_kboard (event); | |
3547 | if (*kbp == 0) | |
3548 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3549 | #else |
c5fdd383 | 3550 | *kbp = &the_only_kboard; |
5798cf15 | 3551 | #endif |
beecf6a1 | 3552 | |
4bb994d1 JB |
3553 | obj = Qnil; |
3554 | ||
48e416d4 | 3555 | /* These two kinds of events get special handling |
a612e298 RS |
3556 | and don't actually appear to the command loop. |
3557 | We return nil for them. */ | |
48e416d4 RS |
3558 | if (event->kind == selection_request_event) |
3559 | { | |
598a9fa7 | 3560 | #ifdef HAVE_X11 |
1e8bd3da RS |
3561 | struct input_event copy; |
3562 | ||
4581e928 RS |
3563 | /* Remove it from the buffer before processing it, |
3564 | since otherwise swallow_events will see it | |
3565 | and process it again. */ | |
1e8bd3da | 3566 | copy = *event; |
beecf6a1 | 3567 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3568 | input_pending = readable_events (0); |
4581e928 | 3569 | x_handle_selection_request (©); |
598a9fa7 JB |
3570 | #else |
3571 | /* We're getting selection request events, but we don't have | |
3572 | a window system. */ | |
3573 | abort (); | |
3574 | #endif | |
48e416d4 RS |
3575 | } |
3576 | ||
1e12dd87 | 3577 | else if (event->kind == selection_clear_event) |
48e416d4 | 3578 | { |
598a9fa7 | 3579 | #ifdef HAVE_X11 |
e0301c07 RS |
3580 | struct input_event copy; |
3581 | ||
3582 | /* Remove it from the buffer before processing it. */ | |
3583 | copy = *event; | |
beecf6a1 | 3584 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3585 | input_pending = readable_events (0); |
90c2bb0c | 3586 | x_handle_selection_clear (©); |
598a9fa7 JB |
3587 | #else |
3588 | /* We're getting selection request events, but we don't have | |
3589 | a window system. */ | |
3590 | abort (); | |
3591 | #endif | |
48e416d4 | 3592 | } |
1a578e9b | 3593 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (macintosh) |
990acea3 RS |
3594 | else if (event->kind == delete_window_event) |
3595 | { | |
bbdc2092 RS |
3596 | /* Make an event (delete-frame (FRAME)). */ |
3597 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3598 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3599 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3600 | } |
1a578e9b AC |
3601 | #endif |
3602 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
af17bd2b KH |
3603 | else if (event->kind == iconify_event) |
3604 | { | |
3605 | /* Make an event (iconify-frame (FRAME)). */ | |
3606 | obj = Fcons (event->frame_or_window, Qnil); | |
3607 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3608 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3609 | } |
3610 | else if (event->kind == deiconify_event) | |
3611 | { | |
3612 | /* Make an event (make-frame-visible (FRAME)). */ | |
3613 | obj = Fcons (event->frame_or_window, Qnil); | |
3614 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3615 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3616 | } |
3617 | #endif | |
a8015ab5 KH |
3618 | else if (event->kind == buffer_switch_event) |
3619 | { | |
3620 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3621 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3622 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3623 | } |
1a578e9b | 3624 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
099787c1 RS |
3625 | else if (event->kind == menu_bar_activate_event) |
3626 | { | |
3627 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3628 | input_pending = readable_events (0); |
e649d076 RS |
3629 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3630 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3631 | } |
1161d367 GV |
3632 | #endif |
3633 | #ifdef WINDOWSNT | |
3634 | else if (event->kind == language_change_event) | |
3635 | { | |
3636 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3637 | obj = Fcons (event->modifiers, Qnil); | |
3638 | obj = Fcons (event->code, Qnil); | |
3639 | obj = Fcons (event->frame_or_window, obj); | |
3640 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3641 | kbd_fetch_ptr = event + 1; | |
3642 | } | |
099787c1 | 3643 | #endif |
a612e298 | 3644 | /* Just discard these, by returning nil. |
c5fdd383 | 3645 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3646 | when we need to randomly delete events from the queue. |
3647 | (They shouldn't otherwise be found in the buffer, | |
3648 | but on some machines it appears they do show up | |
c5fdd383 | 3649 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3650 | /* On Windows NT/9X, no_event is used to delete extraneous |
3651 | mouse events during a popup-menu call. */ | |
a612e298 | 3652 | else if (event->kind == no_event) |
beecf6a1 | 3653 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3654 | else if (event->kind == HELP_EVENT) |
3655 | { | |
e4457b09 | 3656 | /* There are always two HELP_EVENTs in the input queue. */ |
2190735a | 3657 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3658 | |
8dfd92c9 GM |
3659 | xassert (event->code == 0); |
3660 | frame = event->frame_or_window; | |
3661 | object = event->arg; | |
3662 | position = event->x; | |
0bbfdc25 | 3663 | clear_event (event); |
e4457b09 GM |
3664 | |
3665 | kbd_fetch_ptr = event + 1; | |
3666 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3667 | ? kbd_fetch_ptr | |
3668 | : kbd_buffer); | |
3669 | xassert (event->code == 1); | |
3670 | help = event->arg; | |
3671 | window = event->frame_or_window; | |
2190735a GM |
3672 | if (!WINDOWP (window)) |
3673 | window = Qnil; | |
3674 | obj = Fcons (Qhelp_echo, | |
3675 | list5 (frame, help, window, object, position)); | |
0bbfdc25 | 3676 | clear_event (event); |
e4457b09 | 3677 | kbd_fetch_ptr = event + 1; |
7ee32cda | 3678 | } |
c51c7093 GM |
3679 | else if (event->kind == FOCUS_IN_EVENT) |
3680 | { | |
3681 | /* Notification of a FocusIn event. The frame receiving the | |
3682 | focus is in event->frame_or_window. Generate a | |
3683 | switch-frame event if necessary. */ | |
3684 | Lisp_Object frame, focus; | |
3685 | ||
3686 | frame = event->frame_or_window; | |
3687 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3688 | if (FRAMEP (focus)) | |
3689 | frame = focus; | |
3690 | ||
3691 | if (!EQ (frame, internal_last_event_frame) | |
3692 | && !EQ (frame, selected_frame)) | |
3693 | obj = make_lispy_switch_frame (frame); | |
3694 | internal_last_event_frame = frame; | |
3695 | kbd_fetch_ptr = event + 1; | |
3696 | } | |
1e12dd87 RS |
3697 | else |
3698 | { | |
c51c7093 GM |
3699 | /* If this event is on a different frame, return a switch-frame this |
3700 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3701 | Lisp_Object frame; |
1e12dd87 | 3702 | Lisp_Object focus; |
7b4aedb9 | 3703 | |
9b8eb840 | 3704 | frame = event->frame_or_window; |
2470a66f | 3705 | if (CONSP (frame)) |
7539e11f | 3706 | frame = XCAR (frame); |
2470a66f | 3707 | else if (WINDOWP (frame)) |
1e12dd87 | 3708 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3709 | |
1e12dd87 RS |
3710 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3711 | if (! NILP (focus)) | |
3712 | frame = focus; | |
07d2b8de | 3713 | |
4c52b668 | 3714 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3715 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3716 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3717 | internal_last_event_frame = frame; |
4bb994d1 | 3718 | |
1e12dd87 RS |
3719 | /* If we didn't decide to make a switch-frame event, go ahead |
3720 | and build a real event from the queue entry. */ | |
cd21b839 | 3721 | |
1e12dd87 RS |
3722 | if (NILP (obj)) |
3723 | { | |
3724 | obj = make_lispy_event (event); | |
da8f7368 | 3725 | |
e98a93eb | 3726 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3727 | /* If this was a menu selection, then set the flag to inhibit |
3728 | writing to last_nonmenu_event. Don't do this if the event | |
3729 | we're returning is (menu-bar), though; that indicates the | |
3730 | beginning of the menu sequence, and we might as well leave | |
3731 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
3732 | if (used_mouse_menu |
3733 | && !EQ (event->frame_or_window, event->arg) | |
3734 | && (event->kind == MENU_BAR_EVENT | |
3735 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
3736 | *used_mouse_menu = 1; |
3737 | #endif | |
1e12dd87 RS |
3738 | |
3739 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 3740 | clear_event (event); |
beecf6a1 | 3741 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3742 | } |
4bb994d1 | 3743 | } |
284f4730 | 3744 | } |
2eb6bfbe | 3745 | #ifdef HAVE_MOUSE |
a612e298 | 3746 | /* Try generating a mouse motion event. */ |
f3253854 | 3747 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3748 | { |
f3253854 | 3749 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3750 | Lisp_Object bar_window; |
3c370943 | 3751 | enum scroll_bar_part part; |
e5d77022 JB |
3752 | Lisp_Object x, y; |
3753 | unsigned long time; | |
284f4730 | 3754 | |
c5fdd383 | 3755 | *kbp = current_kboard; |
e177ac3a RS |
3756 | /* Note that this uses F to determine which display to look at. |
3757 | If there is no valid info, it does not store anything | |
3758 | so x remains nil. */ | |
3759 | x = Qnil; | |
dd26ab75 | 3760 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3761 | |
3762 | obj = Qnil; | |
284f4730 | 3763 | |
4bb994d1 JB |
3764 | /* Decide if we should generate a switch-frame event. Don't |
3765 | generate switch-frame events for motion outside of all Emacs | |
3766 | frames. */ | |
e177ac3a | 3767 | if (!NILP (x) && f) |
cd21b839 | 3768 | { |
9b8eb840 | 3769 | Lisp_Object frame; |
4bb994d1 | 3770 | |
9b8eb840 | 3771 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3772 | if (NILP (frame)) |
18cd2eeb | 3773 | XSETFRAME (frame, f); |
4bb994d1 | 3774 | |
4c52b668 | 3775 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3776 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3777 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3778 | internal_last_event_frame = frame; |
cd21b839 | 3779 | } |
4bb994d1 | 3780 | |
df0f2ba1 | 3781 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3782 | return a mouse-motion event. */ |
e177ac3a | 3783 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3784 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3785 | } |
2eb6bfbe | 3786 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3787 | else |
3788 | /* We were promised by the above while loop that there was | |
3789 | something for us to read! */ | |
3790 | abort (); | |
3791 | ||
d9d4c147 | 3792 | input_pending = readable_events (0); |
284f4730 | 3793 | |
4c52b668 | 3794 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3795 | |
284f4730 JB |
3796 | return (obj); |
3797 | } | |
a612e298 RS |
3798 | \f |
3799 | /* Process any events that are not user-visible, | |
3800 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3801 | |
3802 | void | |
d9d4c147 KH |
3803 | swallow_events (do_display) |
3804 | int do_display; | |
3a3b9632 | 3805 | { |
87dd9b9b RS |
3806 | int old_timers_run; |
3807 | ||
beecf6a1 | 3808 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3809 | { |
3810 | struct input_event *event; | |
3811 | ||
beecf6a1 KH |
3812 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3813 | ? kbd_fetch_ptr | |
3814 | : kbd_buffer); | |
3a3b9632 RS |
3815 | |
3816 | last_event_timestamp = event->timestamp; | |
3817 | ||
3818 | /* These two kinds of events get special handling | |
3819 | and don't actually appear to the command loop. */ | |
3820 | if (event->kind == selection_request_event) | |
3821 | { | |
3822 | #ifdef HAVE_X11 | |
4581e928 | 3823 | struct input_event copy; |
e0301c07 RS |
3824 | |
3825 | /* Remove it from the buffer before processing it, | |
3826 | since otherwise swallow_events called recursively could see it | |
3827 | and process it again. */ | |
4581e928 | 3828 | copy = *event; |
beecf6a1 | 3829 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3830 | input_pending = readable_events (0); |
4581e928 | 3831 | x_handle_selection_request (©); |
3a3b9632 RS |
3832 | #else |
3833 | /* We're getting selection request events, but we don't have | |
3834 | a window system. */ | |
3835 | abort (); | |
3836 | #endif | |
3837 | } | |
3838 | ||
3839 | else if (event->kind == selection_clear_event) | |
3840 | { | |
3841 | #ifdef HAVE_X11 | |
e0301c07 RS |
3842 | struct input_event copy; |
3843 | ||
3844 | /* Remove it from the buffer before processing it, */ | |
3845 | copy = *event; | |
3846 | ||
beecf6a1 | 3847 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3848 | input_pending = readable_events (0); |
90c2bb0c | 3849 | x_handle_selection_clear (©); |
3a3b9632 RS |
3850 | #else |
3851 | /* We're getting selection request events, but we don't have | |
3852 | a window system. */ | |
3853 | abort (); | |
3854 | #endif | |
3855 | } | |
3856 | else | |
3857 | break; | |
3858 | } | |
3859 | ||
87dd9b9b | 3860 | old_timers_run = timers_run; |
d9d4c147 | 3861 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3862 | |
3863 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 3864 | redisplay_preserve_echo_area (7); |
3a3b9632 | 3865 | } |
a612e298 | 3866 | \f |
d9d4c147 KH |
3867 | /* Record the start of when Emacs is idle, |
3868 | for the sake of running idle-time timers. */ | |
3869 | ||
07a59269 | 3870 | void |
d9d4c147 KH |
3871 | timer_start_idle () |
3872 | { | |
3873 | Lisp_Object timers; | |
3874 | ||
3875 | /* If we are already in the idle state, do nothing. */ | |
3876 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3877 | return; | |
3878 | ||
3879 | EMACS_GET_TIME (timer_idleness_start_time); | |
3880 | ||
3881 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3882 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3883 | { |
3884 | Lisp_Object timer; | |
3885 | ||
7539e11f | 3886 | timer = XCAR (timers); |
d9d4c147 KH |
3887 | |
3888 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3889 | continue; | |
3890 | XVECTOR (timer)->contents[0] = Qnil; | |
3891 | } | |
3892 | } | |
3893 | ||
3894 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3895 | ||
07a59269 | 3896 | void |
d9d4c147 KH |
3897 | timer_stop_idle () |
3898 | { | |
3899 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3900 | } | |
3901 | ||
e044e87c RS |
3902 | /* This is only for debugging. */ |
3903 | struct input_event last_timer_event; | |
3904 | ||
c04cbc3b RS |
3905 | /* Check whether a timer has fired. To prevent larger problems we simply |
3906 | disregard elements that are not proper timers. Do not make a circular | |
3907 | timer list for the time being. | |
3908 | ||
3909 | Returns the number of seconds to wait until the next timer fires. If a | |
3910 | timer is triggering now, return zero seconds. | |
3911 | If no timer is active, return -1 seconds. | |
3912 | ||
4ec4ed6a RS |
3913 | If a timer is ripe, we run it, with quitting turned off. |
3914 | ||
3915 | DO_IT_NOW is now ignored. It used to mean that we should | |
3916 | run the timer directly instead of queueing a timer-event. | |
3917 | Now we always run timers directly. */ | |
c04cbc3b RS |
3918 | |
3919 | EMACS_TIME | |
3920 | timer_check (do_it_now) | |
3921 | int do_it_now; | |
3922 | { | |
3923 | EMACS_TIME nexttime; | |
9291c072 RS |
3924 | EMACS_TIME now, idleness_now; |
3925 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3926 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3927 | |
c04cbc3b RS |
3928 | EMACS_SET_SECS (nexttime, -1); |
3929 | EMACS_SET_USECS (nexttime, -1); | |
3930 | ||
9291c072 | 3931 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3932 | timers = Vtimer_list; |
9291c072 RS |
3933 | /* Consider the idle timers only if Emacs is idle. */ |
3934 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3935 | idle_timers = Vtimer_idle_list; | |
3936 | else | |
3937 | idle_timers = Qnil; | |
3938 | chosen_timer = Qnil; | |
3939 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3940 | |
9291c072 | 3941 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3942 | { |
9291c072 RS |
3943 | EMACS_GET_TIME (now); |
3944 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3945 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3946 | } | |
c04cbc3b | 3947 | |
9291c072 RS |
3948 | while (CONSP (timers) || CONSP (idle_timers)) |
3949 | { | |
9291c072 | 3950 | Lisp_Object *vector; |
8c907a56 | 3951 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
3952 | EMACS_TIME timer_time, idle_timer_time; |
3953 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3954 | ||
3955 | /* Skip past invalid timers and timers already handled. */ | |
3956 | if (!NILP (timers)) | |
c04cbc3b | 3957 | { |
7539e11f | 3958 | timer = XCAR (timers); |
9291c072 RS |
3959 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3960 | { | |
7539e11f | 3961 | timers = XCDR (timers); |
9291c072 RS |
3962 | continue; |
3963 | } | |
3964 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3965 | |
9291c072 RS |
3966 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3967 | || !INTEGERP (vector[3]) | |
3968 | || ! NILP (vector[0])) | |
3969 | { | |
7539e11f | 3970 | timers = XCDR (timers); |
9291c072 RS |
3971 | continue; |
3972 | } | |
3973 | } | |
3974 | if (!NILP (idle_timers)) | |
3975 | { | |
7539e11f | 3976 | timer = XCAR (idle_timers); |
d9d4c147 | 3977 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 3978 | { |
7539e11f | 3979 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3980 | continue; |
3981 | } | |
d9d4c147 KH |
3982 | vector = XVECTOR (timer)->contents; |
3983 | ||
3984 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3985 | || !INTEGERP (vector[3]) |
3986 | || ! NILP (vector[0])) | |
3987 | { | |
7539e11f | 3988 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3989 | continue; |
3990 | } | |
3991 | } | |
d9d4c147 | 3992 | |
9291c072 RS |
3993 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3994 | based on the next ordinary timer. | |
3995 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3996 | this timer becomes ripe (negative if it's already ripe). */ | |
3997 | if (!NILP (timers)) | |
3998 | { | |
7539e11f | 3999 | timer = XCAR (timers); |
9291c072 | 4000 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4001 | EMACS_SET_SECS (timer_time, |
4002 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4003 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4004 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4005 | } | |
ba8dfba8 | 4006 | |
9291c072 RS |
4007 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4008 | based on the next idle timer. */ | |
4009 | if (!NILP (idle_timers)) | |
4010 | { | |
7539e11f | 4011 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4012 | vector = XVECTOR (idle_timer)->contents; |
4013 | EMACS_SET_SECS (idle_timer_time, | |
4014 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4015 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4016 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4017 | } | |
ba8dfba8 | 4018 | |
9291c072 RS |
4019 | /* Decide which timer is the next timer, |
4020 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4021 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4022 | |
9291c072 RS |
4023 | if (! NILP (timers) && ! NILP (idle_timers)) |
4024 | { | |
4025 | EMACS_TIME temp; | |
4026 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4027 | if (EMACS_TIME_NEG_P (temp)) | |
4028 | { | |
4029 | chosen_timer = timer; | |
7539e11f | 4030 | timers = XCDR (timers); |
9291c072 | 4031 | difference = timer_difference; |
c04cbc3b | 4032 | } |
d9d4c147 | 4033 | else |
d9d4c147 | 4034 | { |
9291c072 | 4035 | chosen_timer = idle_timer; |
7539e11f | 4036 | idle_timers = XCDR (idle_timers); |
9291c072 | 4037 | difference = idle_timer_difference; |
d9d4c147 | 4038 | } |
7ea13e12 | 4039 | } |
9291c072 RS |
4040 | else if (! NILP (timers)) |
4041 | { | |
4042 | chosen_timer = timer; | |
7539e11f | 4043 | timers = XCDR (timers); |
9291c072 RS |
4044 | difference = timer_difference; |
4045 | } | |
4046 | else | |
4047 | { | |
4048 | chosen_timer = idle_timer; | |
7539e11f | 4049 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4050 | difference = idle_timer_difference; |
4051 | } | |
4052 | vector = XVECTOR (chosen_timer)->contents; | |
4053 | ||
bd55b860 | 4054 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4055 | if (EMACS_TIME_NEG_P (difference) |
4056 | || (EMACS_SECS (difference) == 0 | |
4057 | && EMACS_USECS (difference) == 0)) | |
4058 | { | |
4059 | if (NILP (vector[0])) | |
4060 | { | |
d925fb39 | 4061 | int was_locked = single_kboard; |
d0bbfc99 GM |
4062 | int count = BINDING_STACK_SIZE (); |
4063 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; | |
d925fb39 | 4064 | |
9291c072 RS |
4065 | /* Mark the timer as triggered to prevent problems if the lisp |
4066 | code fails to reschedule it right. */ | |
4067 | vector[0] = Qt; | |
4068 | ||
d925fb39 | 4069 | specbind (Qinhibit_quit, Qt); |
d0bbfc99 | 4070 | |
d925fb39 | 4071 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4072 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4073 | timers_run++; |
d925fb39 | 4074 | unbind_to (count, Qnil); |
4ec4ed6a | 4075 | |
d925fb39 RS |
4076 | /* Resume allowing input from any kboard, if that was true before. */ |
4077 | if (!was_locked) | |
4078 | any_kboard_state (); | |
9291c072 | 4079 | |
d925fb39 RS |
4080 | /* Since we have handled the event, |
4081 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4082 | } |
4083 | } | |
4084 | else | |
4085 | /* When we encounter a timer that is still waiting, | |
4086 | return the amount of time to wait before it is ripe. */ | |
4087 | { | |
4088 | UNGCPRO; | |
9291c072 RS |
4089 | return difference; |
4090 | } | |
c04cbc3b | 4091 | } |
9291c072 | 4092 | |
7ea13e12 RS |
4093 | /* No timers are pending in the future. */ |
4094 | /* Return 0 if we generated an event, and -1 if not. */ | |
4095 | UNGCPRO; | |
c04cbc3b RS |
4096 | return nexttime; |
4097 | } | |
4098 | \f | |
284f4730 | 4099 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4100 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4101 | static Lisp_Object func_key_syms; |
4102 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
4103 | #ifdef WINDOWSNT |
4104 | static Lisp_Object mouse_wheel_syms; | |
4105 | #endif | |
a24dc617 | 4106 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4107 | |
e9bf89a0 RS |
4108 | /* This is a list of keysym codes for special "accent" characters. |
4109 | It parallels lispy_accent_keys. */ | |
4110 | ||
4111 | static int lispy_accent_codes[] = | |
4112 | { | |
79a7046c | 4113 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4114 | XK_dead_circumflex, |
79a7046c RS |
4115 | #else |
4116 | 0, | |
4117 | #endif | |
4118 | #ifdef XK_dead_grave | |
e9bf89a0 | 4119 | XK_dead_grave, |
79a7046c RS |
4120 | #else |
4121 | 0, | |
4122 | #endif | |
4123 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4124 | XK_dead_tilde, |
79a7046c RS |
4125 | #else |
4126 | 0, | |
4127 | #endif | |
4128 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4129 | XK_dead_diaeresis, |
79a7046c RS |
4130 | #else |
4131 | 0, | |
4132 | #endif | |
4133 | #ifdef XK_dead_macron | |
e9bf89a0 | 4134 | XK_dead_macron, |
79a7046c RS |
4135 | #else |
4136 | 0, | |
4137 | #endif | |
4138 | #ifdef XK_dead_degree | |
e9bf89a0 | 4139 | XK_dead_degree, |
79a7046c RS |
4140 | #else |
4141 | 0, | |
4142 | #endif | |
4143 | #ifdef XK_dead_acute | |
e9bf89a0 | 4144 | XK_dead_acute, |
79a7046c RS |
4145 | #else |
4146 | 0, | |
4147 | #endif | |
4148 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4149 | XK_dead_cedilla, |
79a7046c RS |
4150 | #else |
4151 | 0, | |
4152 | #endif | |
4153 | #ifdef XK_dead_breve | |
e9bf89a0 | 4154 | XK_dead_breve, |
79a7046c RS |
4155 | #else |
4156 | 0, | |
4157 | #endif | |
4158 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4159 | XK_dead_ogonek, |
79a7046c RS |
4160 | #else |
4161 | 0, | |
4162 | #endif | |
4163 | #ifdef XK_dead_caron | |
e9bf89a0 | 4164 | XK_dead_caron, |
79a7046c RS |
4165 | #else |
4166 | 0, | |
4167 | #endif | |
4168 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4169 | XK_dead_doubleacute, |
79a7046c RS |
4170 | #else |
4171 | 0, | |
4172 | #endif | |
4173 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4174 | XK_dead_abovedot, |
79a7046c RS |
4175 | #else |
4176 | 0, | |
4177 | #endif | |
e9bf89a0 RS |
4178 | }; |
4179 | ||
4180 | /* This is a list of Lisp names for special "accent" characters. | |
4181 | It parallels lispy_accent_codes. */ | |
4182 | ||
4183 | static char *lispy_accent_keys[] = | |
4184 | { | |
4185 | "dead-circumflex", | |
4186 | "dead-grave", | |
4187 | "dead-tilde", | |
4188 | "dead-diaeresis", | |
4189 | "dead-macron", | |
4190 | "dead-degree", | |
4191 | "dead-acute", | |
4192 | "dead-cedilla", | |
4193 | "dead-breve", | |
4194 | "dead-ogonek", | |
4195 | "dead-caron", | |
4196 | "dead-doubleacute", | |
4197 | "dead-abovedot", | |
4198 | }; | |
4199 | ||
e98a93eb GV |
4200 | #ifdef HAVE_NTGUI |
4201 | #define FUNCTION_KEY_OFFSET 0x0 | |
4202 | ||
4203 | char *lispy_function_keys[] = | |
4204 | { | |
4205 | 0, /* 0 */ | |
4206 | ||
4207 | 0, /* VK_LBUTTON 0x01 */ | |
4208 | 0, /* VK_RBUTTON 0x02 */ | |
4209 | "cancel", /* VK_CANCEL 0x03 */ | |
4210 | 0, /* VK_MBUTTON 0x04 */ | |
4211 | ||
4212 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
4213 | ||
4214 | "backspace", /* VK_BACK 0x08 */ | |
4215 | "tab", /* VK_TAB 0x09 */ | |
4216 | ||
4217 | 0, 0, /* 0x0A .. 0x0B */ | |
4218 | ||
4219 | "clear", /* VK_CLEAR 0x0C */ | |
4220 | "return", /* VK_RETURN 0x0D */ | |
4221 | ||
4222 | 0, 0, /* 0x0E .. 0x0F */ | |
4223 | ||
1161d367 GV |
4224 | 0, /* VK_SHIFT 0x10 */ |
4225 | 0, /* VK_CONTROL 0x11 */ | |
4226 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4227 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4228 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
4229 | |
4230 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
4231 | ||
1161d367 | 4232 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
4233 | |
4234 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
4235 | ||
4236 | 0, /* VK_SPACE 0x20 */ | |
4237 | "prior", /* VK_PRIOR 0x21 */ | |
4238 | "next", /* VK_NEXT 0x22 */ | |
4239 | "end", /* VK_END 0x23 */ | |
4240 | "home", /* VK_HOME 0x24 */ | |
4241 | "left", /* VK_LEFT 0x25 */ | |
4242 | "up", /* VK_UP 0x26 */ | |
4243 | "right", /* VK_RIGHT 0x27 */ | |
4244 | "down", /* VK_DOWN 0x28 */ | |
4245 | "select", /* VK_SELECT 0x29 */ | |
4246 | "print", /* VK_PRINT 0x2A */ | |
4247 | "execute", /* VK_EXECUTE 0x2B */ | |
4248 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4249 | "insert", /* VK_INSERT 0x2D */ | |
4250 | "delete", /* VK_DELETE 0x2E */ | |
4251 | "help", /* VK_HELP 0x2F */ | |
4252 | ||
4253 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
4254 | ||
4255 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4256 | ||
4257 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
4258 | ||
4259 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
4260 | ||
4261 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4262 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4263 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4264 | ||
e376f90d RS |
4265 | "lwindow", /* VK_LWIN 0x5B */ |
4266 | "rwindow", /* VK_RWIN 0x5C */ | |
4267 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
4268 | |
4269 | 0, 0, /* 0x5E .. 0x5F */ | |
4270 | ||
4271 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
4272 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4273 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4274 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4275 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4276 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4277 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4278 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4279 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4280 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4281 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4282 | "kp-add", /* VK_ADD 0x6B */ | |
4283 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4284 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4285 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4286 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4287 | "f1", /* VK_F1 0x70 */ | |
4288 | "f2", /* VK_F2 0x71 */ | |
4289 | "f3", /* VK_F3 0x72 */ | |
4290 | "f4", /* VK_F4 0x73 */ | |
4291 | "f5", /* VK_F5 0x74 */ | |
4292 | "f6", /* VK_F6 0x75 */ | |
4293 | "f7", /* VK_F7 0x76 */ | |
4294 | "f8", /* VK_F8 0x77 */ | |
4295 | "f9", /* VK_F9 0x78 */ | |
4296 | "f10", /* VK_F10 0x79 */ | |
4297 | "f11", /* VK_F11 0x7A */ | |
4298 | "f12", /* VK_F12 0x7B */ | |
4299 | "f13", /* VK_F13 0x7C */ | |
4300 | "f14", /* VK_F14 0x7D */ | |
4301 | "f15", /* VK_F15 0x7E */ | |
4302 | "f16", /* VK_F16 0x7F */ | |
4303 | "f17", /* VK_F17 0x80 */ | |
4304 | "f18", /* VK_F18 0x81 */ | |
4305 | "f19", /* VK_F19 0x82 */ | |
4306 | "f20", /* VK_F20 0x83 */ | |
4307 | "f21", /* VK_F21 0x84 */ | |
4308 | "f22", /* VK_F22 0x85 */ | |
4309 | "f23", /* VK_F23 0x86 */ | |
4310 | "f24", /* VK_F24 0x87 */ | |
4311 | ||
4312 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
4313 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
4314 | ||
4315 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
4316 | "scroll", /* VK_SCROLL 0x91 */ | |
4317 | ||
e376f90d RS |
4318 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4319 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4320 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4321 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4322 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4323 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4324 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4325 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4326 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4327 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4328 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4329 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4330 | ||
4331 | 0, 0, /* 0x9E .. 0x9F */ | |
4332 | ||
e98a93eb GV |
4333 | /* |
4334 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4335 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4336 | * No other API or message will distinguish left and right keys this way. |
4337 | */ | |
4338 | /* 0xA0 .. 0xEF */ | |
4339 | ||
4340 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4341 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4342 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4343 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4344 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4345 | ||
4346 | /* 0xF0 .. 0xF5 */ | |
4347 | ||
4348 | 0, 0, 0, 0, 0, 0, | |
4349 | ||
4350 | "attn", /* VK_ATTN 0xF6 */ | |
4351 | "crsel", /* VK_CRSEL 0xF7 */ | |
4352 | "exsel", /* VK_EXSEL 0xF8 */ | |
4353 | "ereof", /* VK_EREOF 0xF9 */ | |
4354 | "play", /* VK_PLAY 0xFA */ | |
4355 | "zoom", /* VK_ZOOM 0xFB */ | |
4356 | "noname", /* VK_NONAME 0xFC */ | |
4357 | "pa1", /* VK_PA1 0xFD */ | |
4358 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4359 | 0 /* 0xFF */ |
e98a93eb GV |
4360 | }; |
4361 | ||
04f215f0 | 4362 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4363 | |
37cd9f30 KH |
4364 | #ifdef XK_kana_A |
4365 | static char *lispy_kana_keys[] = | |
4366 | { | |
4367 | /* X Keysym value */ | |
4368 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4369 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4370 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4371 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4372 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4373 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4374 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4375 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4376 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4377 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
4378 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
4379 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
4380 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4381 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4382 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4383 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4384 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4385 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4386 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4387 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4388 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4389 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4390 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4391 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4392 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4393 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4394 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4395 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4396 | }; | |
4397 | #endif /* XK_kana_A */ | |
4398 | ||
04f215f0 RS |
4399 | #define FUNCTION_KEY_OFFSET 0xff00 |
4400 | ||
284f4730 JB |
4401 | /* You'll notice that this table is arranged to be conveniently |
4402 | indexed by X Windows keysym values. */ | |
4403 | static char *lispy_function_keys[] = | |
4404 | { | |
4405 | /* X Keysym value */ | |
4406 | ||
75045dcb RS |
4407 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4408 | "backspace", "tab", "linefeed", "clear", | |
4409 | 0, "return", 0, 0, | |
4410 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4411 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4412 | 0, 0, 0, 0, |
75045dcb RS |
4413 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4414 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4415 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4416 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4417 | "eisu-toggle", /* 0xff30...3f */ | |
4418 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4419 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4420 | ||
75045dcb RS |
4421 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4422 | "down", "prior", "next", "end", | |
4423 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4424 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4425 | "print", | |
4426 | "execute", | |
4427 | "insert", | |
4428 | 0, /* 0xff64 */ | |
4429 | "undo", | |
4430 | "redo", | |
4431 | "menu", | |
4432 | "find", | |
4433 | "cancel", | |
4434 | "help", | |
4435 | "break", /* 0xff6b */ | |
4436 | ||
75045dcb RS |
4437 | 0, 0, 0, 0, |
4438 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4439 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4440 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4441 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4442 | "kp-tab", /* 0xff89 */ | |
4443 | 0, 0, 0, | |
4444 | "kp-enter", /* 0xff8d */ | |
4445 | 0, 0, 0, | |
4446 | "kp-f1", /* 0xff91 */ | |
4447 | "kp-f2", | |
4448 | "kp-f3", | |
4449 | "kp-f4", | |
872157e7 RS |
4450 | "kp-home", /* 0xff95 */ |
4451 | "kp-left", | |
4452 | "kp-up", | |
4453 | "kp-right", | |
4454 | "kp-down", | |
4455 | "kp-prior", /* kp-page-up */ | |
4456 | "kp-next", /* kp-page-down */ | |
4457 | "kp-end", | |
4458 | "kp-begin", | |
4459 | "kp-insert", | |
4460 | "kp-delete", | |
4461 | 0, /* 0xffa0 */ | |
4462 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4463 | "kp-multiply", /* 0xffaa */ |
4464 | "kp-add", | |
4465 | "kp-separator", | |
4466 | "kp-subtract", | |
4467 | "kp-decimal", | |
4468 | "kp-divide", /* 0xffaf */ | |
4469 | "kp-0", /* 0xffb0 */ | |
4470 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4471 | 0, /* 0xffba */ | |
4472 | 0, 0, | |
4473 | "kp-equal", /* 0xffbd */ | |
4474 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4475 | "f2", |
4476 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4477 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4478 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4479 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4480 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4481 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4482 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4483 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4484 | }; |
284f4730 | 4485 | |
04f215f0 RS |
4486 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4487 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4488 | ||
4489 | static char *iso_lispy_function_keys[] = | |
4490 | { | |
4491 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4492 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4493 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4494 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4495 | "iso-lefttab", /* 0xfe20 */ | |
4496 | "iso-move-line-up", "iso-move-line-down", | |
4497 | "iso-partial-line-up", "iso-partial-line-down", | |
4498 | "iso-partial-space-left", "iso-partial-space-right", | |
4499 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4500 | "iso-release-margin-left", "iso-release-margin-right", | |
4501 | "iso-release-both-margins", | |
4502 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4503 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4504 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4505 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4506 | }; | |
4507 | ||
4508 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4509 | |
8e1e4240 | 4510 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4511 | |
07de30b9 GV |
4512 | #ifdef WINDOWSNT |
4513 | /* mouse-wheel events are generated by the wheel on devices such as | |
4514 | the MS Intellimouse. The wheel sits in between the left and right | |
4515 | mouse buttons, and is typically used to scroll or zoom the window | |
4516 | underneath the pointer. mouse-wheel events specify the object on | |
4517 | which they operate, and a delta corresponding to the amount and | |
4518 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4519 | generates a mouse-2 event. */ | |
4520 | static char *lispy_mouse_wheel_names[] = | |
4521 | { | |
4522 | "mouse-wheel" | |
4523 | }; | |
a24dc617 | 4524 | |
07de30b9 GV |
4525 | #endif /* WINDOWSNT */ |
4526 | ||
a24dc617 RS |
4527 | /* drag-n-drop events are generated when a set of selected files are |
4528 | dragged from another application and dropped onto an Emacs window. */ | |
4529 | static char *lispy_drag_n_drop_names[] = | |
4530 | { | |
4531 | "drag-n-drop" | |
4532 | }; | |
4533 | ||
3c370943 | 4534 | /* Scroll bar parts. */ |
4bb994d1 | 4535 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4536 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4537 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4538 | |
3c370943 JB |
4539 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4540 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4541 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4542 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4543 | }; |
4544 | ||
5bf68f6e AS |
4545 | /* User signal events. */ |
4546 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4547 | ||
4548 | Lisp_Object *lispy_user_signals[] = | |
4549 | { | |
4550 | &Qusr1_signal, &Qusr2_signal | |
4551 | }; | |
4552 | ||
4bb994d1 | 4553 | |
7b4aedb9 | 4554 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4555 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4556 | |
4557 | The elements have the form | |
4558 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4559 | where REST is the cdr of a position as it would be reported in the event. | |
4560 | ||
4561 | The make_lispy_event function stores positions here to tell the | |
4562 | difference between click and drag events, and to store the starting | |
4563 | location to be included in drag events. */ | |
4564 | ||
4565 | static Lisp_Object button_down_location; | |
88cb0656 | 4566 | |
fbcd35bd JB |
4567 | /* Information about the most recent up-going button event: Which |
4568 | button, what location, and what time. */ | |
4569 | ||
559f9d04 RS |
4570 | static int last_mouse_button; |
4571 | static int last_mouse_x; | |
4572 | static int last_mouse_y; | |
4573 | static unsigned long button_down_time; | |
fbcd35bd | 4574 | |
222d557c GM |
4575 | /* The maximum time between clicks to make a double-click, or Qnil to |
4576 | disable double-click detection, or Qt for no time limit. */ | |
4577 | ||
564dc952 | 4578 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4579 | |
222d557c GM |
4580 | /* Maximum number of pixels the mouse may be moved between clicks |
4581 | to make a double-click. */ | |
4582 | ||
4583 | int double_click_fuzz; | |
4584 | ||
fbcd35bd JB |
4585 | /* The number of clicks in this multiple-click. */ |
4586 | ||
4587 | int double_click_count; | |
4588 | ||
284f4730 JB |
4589 | /* Given a struct input_event, build the lisp event which represents |
4590 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4591 | movement buffer, which should have a movement event in it. |
4592 | ||
4593 | Note that events must be passed to this function in the order they | |
4594 | are received; this function stores the location of button presses | |
4595 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4596 | |
4597 | static Lisp_Object | |
4598 | make_lispy_event (event) | |
4599 | struct input_event *event; | |
4600 | { | |
79a7046c RS |
4601 | int i; |
4602 | ||
0220c518 | 4603 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4604 | { |
284f4730 JB |
4605 | /* A simple keystroke. */ |
4606 | case ascii_keystroke: | |
86e5706b | 4607 | { |
9343ab07 | 4608 | Lisp_Object lispy_c; |
e9bf89a0 | 4609 | int c = event->code & 0377; |
5a1c6df8 JB |
4610 | /* Turn ASCII characters into control characters |
4611 | when proper. */ | |
4612 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4613 | c = make_ctrl_char (c); |
4614 | ||
4615 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4616 | just above, and the shift key was taken care of by the X code, | |
4617 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4618 | c |= (event->modifiers |
4619 | & (meta_modifier | alt_modifier | |
4620 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4621 | /* Distinguish Shift-SPC from SPC. */ |
4622 | if ((event->code & 0377) == 040 | |
4623 | && event->modifiers & shift_modifier) | |
4624 | c |= shift_modifier; | |
559f9d04 | 4625 | button_down_time = 0; |
bb9e9bed | 4626 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4627 | return lispy_c; |
86e5706b | 4628 | } |
284f4730 | 4629 | |
a50e723f KH |
4630 | case multibyte_char_keystroke: |
4631 | { | |
4632 | Lisp_Object lispy_c; | |
4633 | ||
4634 | XSETFASTINT (lispy_c, event->code); | |
4635 | return lispy_c; | |
4636 | } | |
4637 | ||
284f4730 JB |
4638 | /* A function key. The symbol may need to have modifier prefixes |
4639 | tacked onto it. */ | |
4640 | case non_ascii_keystroke: | |
559f9d04 | 4641 | button_down_time = 0; |
e9bf89a0 RS |
4642 | |
4643 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4644 | if (event->code == lispy_accent_codes[i]) | |
4645 | return modify_event_symbol (i, | |
4646 | event->modifiers, | |
80e4aa30 | 4647 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4648 | lispy_accent_keys, &accent_key_syms, |
4649 | (sizeof (lispy_accent_keys) | |
4650 | / sizeof (lispy_accent_keys[0]))); | |
4651 | ||
270a208f | 4652 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4653 | if (event->code & (1 << 28)) |
4654 | { | |
4655 | /* We need to use an alist rather than a vector as the cache | |
4656 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4657 | if (NILP (current_kboard->system_key_syms)) |
4658 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4659 | return modify_event_symbol (event->code, |
80e4aa30 | 4660 | event->modifiers, |
7c97ffdc KH |
4661 | Qfunction_key, |
4662 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4663 | 0, ¤t_kboard->system_key_syms, |
4664 | (unsigned)-1); | |
80e4aa30 RS |
4665 | } |
4666 | ||
37cd9f30 KH |
4667 | #ifdef XK_kana_A |
4668 | if (event->code >= 0x400 && event->code < 0x500) | |
4669 | return modify_event_symbol (event->code - 0x400, | |
4670 | event->modifiers & ~shift_modifier, | |
4671 | Qfunction_key, Qnil, | |
4672 | lispy_kana_keys, &func_key_syms, | |
4673 | (sizeof (lispy_kana_keys) | |
4674 | / sizeof (lispy_kana_keys[0]))); | |
4675 | #endif /* XK_kana_A */ | |
4676 | ||
111c4138 | 4677 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4678 | if (event->code < FUNCTION_KEY_OFFSET |
4679 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4680 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4681 | event->modifiers, | |
4682 | Qfunction_key, Qnil, | |
4683 | iso_lispy_function_keys, &func_key_syms, | |
4684 | (sizeof (iso_lispy_function_keys) | |
4685 | / sizeof (iso_lispy_function_keys[0]))); | |
4686 | else | |
111c4138 | 4687 | #endif |
656280a6 GM |
4688 | |
4689 | #ifdef HAVE_X_WINDOWS | |
4690 | if (event->code - FUNCTION_KEY_OFFSET < 0 | |
4691 | || (event->code - FUNCTION_KEY_OFFSET | |
4692 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys)) | |
4693 | { | |
4694 | /* EVENT->code is an unknown keysym, for example someone | |
4695 | assigned `ccaron' to a key in a locale where | |
4696 | XmbLookupString doesn't return a translation for it. */ | |
4697 | char *name; | |
4698 | Lisp_Object symbol; | |
4699 | ||
4700 | BLOCK_INPUT; | |
4701 | /* This returns a pointer to a static area. Don't free it. */ | |
4702 | name = XKeysymToString (event->code); | |
4703 | symbol = name ? intern (name) : Qnil; | |
4704 | UNBLOCK_INPUT; | |
4705 | ||
4706 | if (!NILP (symbol)) | |
4707 | return apply_modifiers (event->modifiers, symbol); | |
4708 | } | |
4709 | #endif /* HAVE_X_WINDOWS */ | |
4710 | ||
4711 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
4712 | event->modifiers, | |
4713 | Qfunction_key, Qnil, | |
4714 | lispy_function_keys, &func_key_syms, | |
4715 | (sizeof (lispy_function_keys) | |
4716 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4717 | |
514354e9 | 4718 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4719 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4720 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4721 | case mouse_click: |
7ee32cda | 4722 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4723 | case scroll_bar_click: |
7ee32cda | 4724 | #endif |
284f4730 | 4725 | { |
e9bf89a0 | 4726 | int button = event->code; |
559f9d04 | 4727 | int is_double; |
7b4aedb9 | 4728 | Lisp_Object position; |
dbc4e1c1 JB |
4729 | Lisp_Object *start_pos_ptr; |
4730 | Lisp_Object start_pos; | |
c5cf2109 | 4731 | Lisp_Object window; |
284f4730 | 4732 | |
8c907a56 GM |
4733 | position = Qnil; |
4734 | ||
7b4aedb9 JB |
4735 | /* Build the position as appropriate for this mouse click. */ |
4736 | if (event->kind == mouse_click) | |
284f4730 | 4737 | { |
7b4aedb9 | 4738 | int part; |
c5cf2109 | 4739 | struct frame *f = XFRAME (event->frame_or_window); |
7b4aedb9 | 4740 | Lisp_Object posn; |
7ee32cda | 4741 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4742 | int row, column; |
4743 | ||
5da3133a RS |
4744 | /* Ignore mouse events that were made on frame that |
4745 | have been deleted. */ | |
4746 | if (! FRAME_LIVE_P (f)) | |
4747 | return Qnil; | |
4748 | ||
7ee32cda GM |
4749 | /* EVENT->x and EVENT->y are frame-relative pixel |
4750 | coordinates at this place. Under old redisplay, COLUMN | |
4751 | and ROW are set to frame relative glyph coordinates | |
4752 | which are then used to determine whether this click is | |
4753 | in a menu (non-toolkit version). */ | |
4754 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4755 | &column, &row, NULL, 1); | |
7b4aedb9 | 4756 | |
eef045bf RS |
4757 | #ifndef USE_X_TOOLKIT |
4758 | /* In the non-toolkit version, clicks on the menu bar | |
4759 | are ordinary button events in the event buffer. | |
4760 | Distinguish them, and invoke the menu. | |
4761 | ||
4762 | (In the toolkit version, the toolkit handles the menu bar | |
4763 | and Emacs doesn't know about it until after the user | |
4764 | makes a selection.) */ | |
2ee250ec RS |
4765 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4766 | && (event->modifiers & down_modifier)) | |
bb936752 | 4767 | { |
b7c49376 | 4768 | Lisp_Object items, item; |
0a0e8fe6 RS |
4769 | int hpos; |
4770 | int i; | |
4771 | ||
2ee250ec | 4772 | #if 0 |
0a0e8fe6 RS |
4773 | /* Activate the menu bar on the down event. If the |
4774 | up event comes in before the menu code can deal with it, | |
4775 | just ignore it. */ | |
4776 | if (! (event->modifiers & down_modifier)) | |
4777 | return Qnil; | |
2ee250ec | 4778 | #endif |
0aafc975 | 4779 | |
7ee32cda | 4780 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4781 | item = Qnil; |
5ec75a55 | 4782 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4783 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4784 | { |
4785 | Lisp_Object pos, string; | |
129004d3 GM |
4786 | string = AREF (items, i + 1); |
4787 | pos = AREF (items, i + 3); | |
b7c49376 RS |
4788 | if (NILP (string)) |
4789 | break; | |
9e20143a RS |
4790 | if (column >= XINT (pos) |
4791 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 | 4792 | { |
129004d3 | 4793 | item = AREF (items, i); |
b7c49376 RS |
4794 | break; |
4795 | } | |
5ec75a55 | 4796 | } |
9e20143a | 4797 | |
7ee32cda GM |
4798 | /* ELisp manual 2.4b says (x y) are window relative but |
4799 | code says they are frame-relative. */ | |
5ec75a55 RS |
4800 | position |
4801 | = Fcons (event->frame_or_window, | |
4802 | Fcons (Qmenu_bar, | |
4803 | Fcons (Fcons (event->x, event->y), | |
4804 | Fcons (make_number (event->timestamp), | |
4805 | Qnil)))); | |
4806 | ||
b7c49376 | 4807 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4808 | } |
eef045bf | 4809 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4810 | |
7ee32cda GM |
4811 | /* Set `window' to the window under frame pixel coordinates |
4812 | event->x/event->y. */ | |
4813 | window = window_from_coordinates (f, XINT (event->x), | |
4814 | XINT (event->y), &part, 0); | |
0aafc975 | 4815 | |
8c18cbfb | 4816 | if (!WINDOWP (window)) |
78ced549 RS |
4817 | { |
4818 | window = event->frame_or_window; | |
4819 | posn = Qnil; | |
4820 | } | |
284f4730 | 4821 | else |
7b4aedb9 | 4822 | { |
7ee32cda GM |
4823 | /* It's a click in window window at frame coordinates |
4824 | event->x/ event->y. */ | |
4825 | struct window *w = XWINDOW (window); | |
4826 | ||
4827 | /* Get window relative coordinates. Original code | |
4828 | `rounded' this to glyph boundaries. */ | |
4829 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4830 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4831 | ||
4832 | /* Set event coordinates to window-relative coordinates | |
4833 | for constructing the Lisp event below. */ | |
4834 | XSETINT (event->x, wx); | |
4835 | XSETINT (event->y, wy); | |
4836 | ||
4837 | if (part == 1 || part == 3) | |
4838 | { | |
902ae620 | 4839 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
4840 | the mouse that may have a `local-map' property. */ |
4841 | Lisp_Object string; | |
4842 | int charpos; | |
4843 | ||
045dee35 | 4844 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4845 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4846 | if (STRINGP (string)) | |
4847 | string_info = Fcons (string, make_number (charpos)); | |
4848 | } | |
7b4aedb9 JB |
4849 | else if (part == 2) |
4850 | posn = Qvertical_line; | |
4851 | else | |
a955ffa2 GM |
4852 | { |
4853 | Lisp_Object object; | |
4854 | struct display_pos p; | |
4855 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
4856 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
4857 | if (STRINGP (object)) |
4858 | string_info | |
4859 | = Fcons (object, | |
4860 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 4861 | } |
7b4aedb9 JB |
4862 | } |
4863 | ||
5ec75a55 RS |
4864 | position |
4865 | = Fcons (window, | |
4866 | Fcons (posn, | |
4867 | Fcons (Fcons (event->x, event->y), | |
4868 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4869 | (NILP (string_info) |
4870 | ? Qnil | |
4871 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4872 | } |
7ee32cda | 4873 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4874 | else |
88cb0656 | 4875 | { |
7ee32cda | 4876 | /* It's a scrollbar click. */ |
9e20143a RS |
4877 | Lisp_Object portion_whole; |
4878 | Lisp_Object part; | |
4879 | ||
4880 | window = event->frame_or_window; | |
4881 | portion_whole = Fcons (event->x, event->y); | |
4882 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4883 | |
db08707d RS |
4884 | position |
4885 | = Fcons (window, | |
4886 | Fcons (Qvertical_scroll_bar, | |
4887 | Fcons (portion_whole, | |
4888 | Fcons (make_number (event->timestamp), | |
4889 | Fcons (part, Qnil))))); | |
88cb0656 | 4890 | } |
7ee32cda | 4891 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4892 | |
129004d3 | 4893 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
4894 | { |
4895 | button_down_location = larger_vector (button_down_location, | |
4896 | button + 1, Qnil); | |
4897 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
4898 | } | |
4899 | ||
129004d3 | 4900 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
4901 | start_pos = *start_pos_ptr; |
4902 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4903 | |
c5cf2109 GM |
4904 | { |
4905 | /* On window-system frames, use the value of | |
4906 | double-click-fuzz as is. On other frames, interpret it | |
4907 | as a multiple of 1/8 characters. */ | |
4908 | struct frame *f; | |
4909 | int fuzz; | |
4910 | ||
4911 | if (WINDOWP (event->frame_or_window)) | |
4912 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
4913 | else if (FRAMEP (event->frame_or_window)) | |
4914 | f = XFRAME (event->frame_or_window); | |
4915 | else | |
4916 | abort (); | |
4917 | ||
4918 | if (FRAME_WINDOW_P (f)) | |
4919 | fuzz = double_click_fuzz; | |
4920 | else | |
4921 | fuzz = double_click_fuzz / 8; | |
4922 | ||
4923 | is_double = (button == last_mouse_button | |
4924 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
4925 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
4926 | && button_down_time != 0 | |
4927 | && (EQ (Vdouble_click_time, Qt) | |
4928 | || (INTEGERP (Vdouble_click_time) | |
4929 | && ((int)(event->timestamp - button_down_time) | |
4930 | < XINT (Vdouble_click_time))))); | |
4931 | } | |
222d557c | 4932 | |
559f9d04 RS |
4933 | last_mouse_button = button; |
4934 | last_mouse_x = XINT (event->x); | |
4935 | last_mouse_y = XINT (event->y); | |
4936 | ||
7b4aedb9 JB |
4937 | /* If this is a button press, squirrel away the location, so |
4938 | we can decide later whether it was a click or a drag. */ | |
4939 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4940 | { |
4941 | if (is_double) | |
4942 | { | |
4943 | double_click_count++; | |
4944 | event->modifiers |= ((double_click_count > 2) | |
4945 | ? triple_modifier | |
4946 | : double_modifier); | |
4947 | } | |
4948 | else | |
4949 | double_click_count = 1; | |
4950 | button_down_time = event->timestamp; | |
4951 | *start_pos_ptr = Fcopy_alist (position); | |
4952 | } | |
7b4aedb9 | 4953 | |
88cb0656 | 4954 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4955 | see if this was a click or a drag. */ |
88cb0656 JB |
4956 | else if (event->modifiers & up_modifier) |
4957 | { | |
129004d3 GM |
4958 | /* If we did not see a down before this up, ignore the up. |
4959 | Probably this happened because the down event chose a | |
4960 | menu item. It would be an annoyance to treat the | |
4961 | release of the button that chose the menu item as a | |
4962 | separate event. */ | |
48e416d4 | 4963 | |
8c18cbfb | 4964 | if (!CONSP (start_pos)) |
48e416d4 RS |
4965 | return Qnil; |
4966 | ||
88cb0656 | 4967 | event->modifiers &= ~up_modifier; |
48e416d4 | 4968 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4969 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4970 | event->modifiers |= click_modifier; |
4971 | else | |
48e416d4 | 4972 | #endif |
dbc4e1c1 JB |
4973 | { |
4974 | /* The third element of every position should be the (x,y) | |
4975 | pair. */ | |
9b8eb840 | 4976 | Lisp_Object down; |
dbc4e1c1 | 4977 | |
9b8eb840 | 4978 | down = Fnth (make_number (2), start_pos); |
129004d3 GM |
4979 | if (EQ (event->x, XCAR (down)) && EQ (event->y, XCDR (down))) |
4980 | /* Mouse hasn't moved. */ | |
4981 | event->modifiers |= click_modifier; | |
fbcd35bd JB |
4982 | else |
4983 | { | |
129004d3 GM |
4984 | Lisp_Object window1, window2, posn1, posn2; |
4985 | ||
4986 | /* Avoid generating a drag event if the mouse | |
4987 | hasn't actually moved off the buffer position. */ | |
4988 | window1 = Fnth (make_number (0), position); | |
4989 | posn1 = Fnth (make_number (1), position); | |
4990 | window2 = Fnth (make_number (0), start_pos); | |
4991 | posn2 = Fnth (make_number (1), start_pos); | |
4992 | ||
4993 | if (EQ (window1, window2) && EQ (posn1, posn2)) | |
4994 | event->modifiers |= click_modifier; | |
4995 | else | |
4996 | { | |
4997 | button_down_time = 0; | |
4998 | event->modifiers |= drag_modifier; | |
4999 | } | |
fbcd35bd | 5000 | } |
129004d3 | 5001 | |
bc536d84 RS |
5002 | /* Don't check is_double; treat this as multiple |
5003 | if the down-event was multiple. */ | |
5004 | if (double_click_count > 1) | |
5005 | event->modifiers |= ((double_click_count > 2) | |
5006 | ? triple_modifier | |
5007 | : double_modifier); | |
dbc4e1c1 | 5008 | } |
88cb0656 JB |
5009 | } |
5010 | else | |
5011 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5012 | the up_modifier set. */ |
88cb0656 JB |
5013 | abort (); |
5014 | ||
88cb0656 | 5015 | { |
7b4aedb9 | 5016 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5017 | Lisp_Object head; |
5018 | ||
5019 | head = modify_event_symbol (button, | |
5020 | event->modifiers, | |
8e1e4240 GM |
5021 | Qmouse_click, Vlispy_mouse_stem, |
5022 | NULL, | |
5023 | &mouse_syms, | |
5024 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5025 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5026 | return Fcons (head, |
5027 | Fcons (start_pos, | |
5028 | Fcons (position, | |
5029 | Qnil))); | |
fbcd35bd JB |
5030 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5031 | return Fcons (head, | |
5032 | Fcons (position, | |
5033 | Fcons (make_number (double_click_count), | |
5034 | Qnil))); | |
88cb0656 JB |
5035 | else |
5036 | return Fcons (head, | |
7b4aedb9 | 5037 | Fcons (position, |
88cb0656 JB |
5038 | Qnil)); |
5039 | } | |
284f4730 | 5040 | } |
db08707d | 5041 | |
7ee32cda GM |
5042 | #if USE_TOOLKIT_SCROLL_BARS |
5043 | ||
5044 | /* We don't have down and up events if using toolkit scroll bars, | |
5045 | so make this always a click event. Store in the `part' of | |
5046 | the Lisp event a symbol which maps to the following actions: | |
5047 | ||
5048 | `above_handle' page up | |
5049 | `below_handle' page down | |
5050 | `up' line up | |
5051 | `down' line down | |
5052 | `top' top of buffer | |
5053 | `bottom' bottom of buffer | |
5054 | `handle' thumb has been dragged. | |
5055 | `end-scroll' end of interaction with scroll bar | |
5056 | ||
5057 | The incoming input_event contains in its `part' member an | |
5058 | index of type `enum scroll_bar_part' which we can use as an | |
5059 | index in scroll_bar_parts to get the appropriate symbol. */ | |
5060 | ||
5061 | case scroll_bar_click: | |
5062 | { | |
5063 | Lisp_Object position, head, window, portion_whole, part; | |
5064 | ||
5065 | window = event->frame_or_window; | |
5066 | portion_whole = Fcons (event->x, event->y); | |
5067 | part = *scroll_bar_parts[(int) event->part]; | |
5068 | ||
5069 | position | |
5070 | = Fcons (window, | |
5071 | Fcons (Qvertical_scroll_bar, | |
5072 | Fcons (portion_whole, | |
5073 | Fcons (make_number (event->timestamp), | |
5074 | Fcons (part, Qnil))))); | |
5075 | ||
5076 | /* Always treat scroll bar events as clicks. */ | |
5077 | event->modifiers |= click_modifier; | |
5078 | ||
5079 | /* Get the symbol we should use for the mouse click. */ | |
5080 | head = modify_event_symbol (event->code, | |
5081 | event->modifiers, | |
8e1e4240 GM |
5082 | Qmouse_click, |
5083 | Vlispy_mouse_stem, | |
5084 | NULL, &mouse_syms, | |
5085 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5086 | return Fcons (head, Fcons (position, Qnil)); |
5087 | } | |
5088 | ||
5089 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
5090 | ||
db08707d | 5091 | #ifdef WINDOWSNT |
fbd6baed | 5092 | case w32_scroll_bar_click: |
db08707d RS |
5093 | { |
5094 | int button = event->code; | |
5095 | int is_double; | |
5096 | Lisp_Object position; | |
5097 | Lisp_Object *start_pos_ptr; | |
5098 | Lisp_Object start_pos; | |
5099 | ||
db08707d RS |
5100 | { |
5101 | Lisp_Object window; | |
5102 | Lisp_Object portion_whole; | |
5103 | Lisp_Object part; | |
5104 | ||
5105 | window = event->frame_or_window; | |
5106 | portion_whole = Fcons (event->x, event->y); | |
5107 | part = *scroll_bar_parts[(int) event->part]; | |
5108 | ||
e8886a1d RS |
5109 | position |
5110 | = Fcons (window, | |
5111 | Fcons (Qvertical_scroll_bar, | |
5112 | Fcons (portion_whole, | |
5113 | Fcons (make_number (event->timestamp), | |
5114 | Fcons (part, Qnil))))); | |
db08707d RS |
5115 | } |
5116 | ||
fbd6baed | 5117 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5118 | event->modifiers |= click_modifier; |
5119 | ||
5120 | { | |
5121 | /* Get the symbol we should use for the mouse click. */ | |
5122 | Lisp_Object head; | |
5123 | ||
5124 | head = modify_event_symbol (button, | |
5125 | event->modifiers, | |
8e1e4240 GM |
5126 | Qmouse_click, |
5127 | Vlispy_mouse_stem, | |
5128 | NULL, &mouse_syms, | |
5129 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5130 | return Fcons (head, |
5131 | Fcons (position, | |
5132 | Qnil)); | |
5133 | } | |
5134 | } | |
07de30b9 GV |
5135 | case mouse_wheel: |
5136 | { | |
5137 | int part; | |
5138 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5139 | Lisp_Object window; | |
5140 | Lisp_Object posn; | |
5141 | Lisp_Object head, position; | |
5142 | int row, column; | |
5143 | ||
5144 | /* Ignore mouse events that were made on frame that | |
5145 | have been deleted. */ | |
5146 | if (! FRAME_LIVE_P (f)) | |
5147 | return Qnil; | |
5148 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5149 | &column, &row, NULL, 1); | |
afabdbe5 JR |
5150 | window = window_from_coordinates (f, XINT (event->x), |
5151 | XINT (event->y), &part, 0); | |
07de30b9 GV |
5152 | |
5153 | if (!WINDOWP (window)) | |
5154 | { | |
5155 | window = event->frame_or_window; | |
5156 | posn = Qnil; | |
5157 | } | |
5158 | else | |
5159 | { | |
5160 | int pixcolumn, pixrow; | |
5161 | column -= XINT (XWINDOW (window)->left); | |
5162 | row -= XINT (XWINDOW (window)->top); | |
e1bfeab2 JR |
5163 | glyph_to_pixel_coords (XWINDOW(window), column, row, |
5164 | &pixcolumn, &pixrow); | |
07de30b9 GV |
5165 | XSETINT (event->x, pixcolumn); |
5166 | XSETINT (event->y, pixrow); | |
5167 | ||
5168 | if (part == 1) | |
5169 | posn = Qmode_line; | |
5170 | else if (part == 2) | |
5171 | posn = Qvertical_line; | |
7ee32cda | 5172 | else if (part == 3) |
045dee35 | 5173 | posn = Qheader_line; |
07de30b9 | 5174 | else |
a955ffa2 GM |
5175 | { |
5176 | Lisp_Object object; | |
5177 | struct display_pos p; | |
5178 | buffer_posn_from_coords (XWINDOW (window), &column, &row, | |
5179 | &object, &p); | |
5180 | posn = make_number (CHARPOS (p.pos)); | |
5181 | } | |
07de30b9 | 5182 | } |
db08707d | 5183 | |
07de30b9 GV |
5184 | { |
5185 | Lisp_Object head, position; | |
5186 | ||
5187 | position | |
5188 | = Fcons (window, | |
5189 | Fcons (posn, | |
5190 | Fcons (Fcons (event->x, event->y), | |
5191 | Fcons (make_number (event->timestamp), | |
5192 | Qnil)))); | |
5193 | ||
5194 | head = modify_event_symbol (0, event->modifiers, | |
5195 | Qmouse_wheel, Qnil, | |
5196 | lispy_mouse_wheel_names, | |
5197 | &mouse_wheel_syms, 1); | |
5198 | return Fcons (head, | |
5199 | Fcons (position, | |
5200 | Fcons (make_number (event->code), | |
5201 | Qnil))); | |
5202 | } | |
5203 | } | |
5204 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
5205 | |
5206 | case drag_n_drop: | |
5207 | { | |
5208 | int part; | |
5209 | FRAME_PTR f; | |
5210 | Lisp_Object window; | |
5211 | Lisp_Object posn; | |
a24dc617 | 5212 | Lisp_Object files; |
a24dc617 RS |
5213 | |
5214 | /* The frame_or_window field should be a cons of the frame in | |
5215 | which the event occurred and a list of the filenames | |
5216 | dropped. */ | |
5217 | if (! CONSP (event->frame_or_window)) | |
5218 | abort (); | |
5219 | ||
7539e11f KR |
5220 | f = XFRAME (XCAR (event->frame_or_window)); |
5221 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5222 | |
5223 | /* Ignore mouse events that were made on frames that | |
5224 | have been deleted. */ | |
5225 | if (! FRAME_LIVE_P (f)) | |
5226 | return Qnil; | |
afabdbe5 JR |
5227 | |
5228 | window = window_from_coordinates (f, XINT (event->x), | |
5229 | XINT (event->y), &part, 0); | |
a24dc617 RS |
5230 | |
5231 | if (!WINDOWP (window)) | |
5232 | { | |
7539e11f | 5233 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5234 | posn = Qnil; |
5235 | } | |
5236 | else | |
5237 | { | |
7ee32cda GM |
5238 | /* It's an event in window `window' at frame coordinates |
5239 | event->x/ event->y. */ | |
5240 | struct window *w = XWINDOW (window); | |
5241 | ||
5242 | /* Get window relative coordinates. */ | |
5243 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5244 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5245 | ||
5246 | /* Set event coordinates to window-relative coordinates | |
5247 | for constructing the Lisp event below. */ | |
5248 | XSETINT (event->x, wx); | |
5249 | XSETINT (event->y, wy); | |
a24dc617 RS |
5250 | |
5251 | if (part == 1) | |
5252 | posn = Qmode_line; | |
5253 | else if (part == 2) | |
5254 | posn = Qvertical_line; | |
7ee32cda | 5255 | else if (part == 3) |
045dee35 | 5256 | posn = Qheader_line; |
a24dc617 | 5257 | else |
a955ffa2 GM |
5258 | { |
5259 | Lisp_Object object; | |
5260 | struct display_pos p; | |
5261 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5262 | posn = make_number (CHARPOS (p.pos)); | |
5263 | } | |
a24dc617 RS |
5264 | } |
5265 | ||
5266 | { | |
5267 | Lisp_Object head, position; | |
5268 | ||
5269 | position | |
5270 | = Fcons (window, | |
5271 | Fcons (posn, | |
5272 | Fcons (Fcons (event->x, event->y), | |
5273 | Fcons (make_number (event->timestamp), | |
5274 | Qnil)))); | |
5275 | ||
5276 | head = modify_event_symbol (0, event->modifiers, | |
5277 | Qdrag_n_drop, Qnil, | |
5278 | lispy_drag_n_drop_names, | |
5279 | &drag_n_drop_syms, 1); | |
5280 | return Fcons (head, | |
5281 | Fcons (position, | |
5282 | Fcons (files, | |
5283 | Qnil))); | |
5284 | } | |
5285 | } | |
514354e9 | 5286 | #endif /* HAVE_MOUSE */ |
284f4730 | 5287 | |
1a578e9b | 5288 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
da8f7368 GM |
5289 | case MENU_BAR_EVENT: |
5290 | if (EQ (event->arg, event->frame_or_window)) | |
5291 | /* This is the prefix key. We translate this to | |
5292 | `(menu_bar)' because the code in keyboard.c for menu | |
5293 | events, which we use, relies on this. */ | |
5294 | return Fcons (Qmenu_bar, Qnil); | |
5295 | return event->arg; | |
2470a66f KH |
5296 | #endif |
5297 | ||
9ea173e8 | 5298 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5299 | if (EQ (event->arg, event->frame_or_window)) |
5300 | /* This is the prefix key. We translate this to | |
5301 | `(tool_bar)' because the code in keyboard.c for menu | |
5302 | events, which we use, relies on this. */ | |
5303 | return Fcons (Qtool_bar, Qnil); | |
5304 | else if (SYMBOLP (event->arg)) | |
5305 | return apply_modifiers (event->modifiers, event->arg); | |
5306 | return event->arg; | |
5307 | ||
5308 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5309 | /* A user signal. */ |
5310 | return *lispy_user_signals[event->code]; | |
5311 | ||
284f4730 JB |
5312 | /* The 'kind' field of the event is something we don't recognize. */ |
5313 | default: | |
48e416d4 | 5314 | abort (); |
284f4730 JB |
5315 | } |
5316 | } | |
5317 | ||
514354e9 | 5318 | #ifdef HAVE_MOUSE |
6cbff1cb | 5319 | |
284f4730 | 5320 | static Lisp_Object |
7b4aedb9 | 5321 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5322 | FRAME_PTR frame; |
7b4aedb9 | 5323 | Lisp_Object bar_window; |
3c370943 | 5324 | enum scroll_bar_part part; |
284f4730 | 5325 | Lisp_Object x, y; |
e5d77022 | 5326 | unsigned long time; |
284f4730 | 5327 | { |
3c370943 | 5328 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5329 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5330 | { |
9b8eb840 | 5331 | Lisp_Object part_sym; |
4bb994d1 | 5332 | |
9b8eb840 | 5333 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5334 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5335 | (Fcons (Fcons (bar_window, |
3c370943 | 5336 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5337 | Fcons (Fcons (x, y), |
5338 | Fcons (make_number (time), | |
cb5df6ae | 5339 | Fcons (part_sym, |
4bb994d1 JB |
5340 | Qnil))))), |
5341 | Qnil))); | |
5342 | } | |
5343 | ||
5344 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5345 | else |
5346 | { | |
4bb994d1 | 5347 | int area; |
9e20143a | 5348 | Lisp_Object window; |
4bb994d1 | 5349 | Lisp_Object posn; |
9e20143a | 5350 | |
9e20143a | 5351 | if (frame) |
7ee32cda GM |
5352 | /* It's in a frame; which window on that frame? */ |
5353 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
5354 | else |
5355 | window = Qnil; | |
4bb994d1 | 5356 | |
8c18cbfb | 5357 | if (WINDOWP (window)) |
4bb994d1 | 5358 | { |
7ee32cda | 5359 | struct window *w = XWINDOW (window); |
7ee32cda | 5360 | int wx, wy; |
7ee32cda GM |
5361 | |
5362 | /* Get window relative coordinates. */ | |
5363 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
5364 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
5365 | XSETINT (x, wx); | |
5366 | XSETINT (y, wy); | |
5367 | ||
4bb994d1 JB |
5368 | if (area == 1) |
5369 | posn = Qmode_line; | |
5370 | else if (area == 2) | |
5371 | posn = Qvertical_line; | |
7ee32cda | 5372 | else if (area == 3) |
045dee35 | 5373 | posn = Qheader_line; |
4bb994d1 | 5374 | else |
a955ffa2 GM |
5375 | { |
5376 | Lisp_Object object; | |
5377 | struct display_pos p; | |
5378 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5379 | posn = make_number (CHARPOS (p.pos)); | |
5380 | } | |
4bb994d1 | 5381 | } |
e9bf89a0 RS |
5382 | else if (frame != 0) |
5383 | { | |
18cd2eeb | 5384 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5385 | posn = Qnil; |
5386 | } | |
284f4730 | 5387 | else |
4bb994d1 JB |
5388 | { |
5389 | window = Qnil; | |
5390 | posn = Qnil; | |
bb9e9bed KH |
5391 | XSETFASTINT (x, 0); |
5392 | XSETFASTINT (y, 0); | |
4bb994d1 | 5393 | } |
284f4730 | 5394 | |
4bb994d1 JB |
5395 | return Fcons (Qmouse_movement, |
5396 | Fcons (Fcons (window, | |
5397 | Fcons (posn, | |
5398 | Fcons (Fcons (x, y), | |
5399 | Fcons (make_number (time), | |
5400 | Qnil)))), | |
5401 | Qnil)); | |
5402 | } | |
284f4730 JB |
5403 | } |
5404 | ||
514354e9 | 5405 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5406 | |
cd21b839 JB |
5407 | /* Construct a switch frame event. */ |
5408 | static Lisp_Object | |
5409 | make_lispy_switch_frame (frame) | |
5410 | Lisp_Object frame; | |
5411 | { | |
5412 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5413 | } | |
0a7f1fc0 JB |
5414 | \f |
5415 | /* Manipulating modifiers. */ | |
284f4730 | 5416 | |
0a7f1fc0 | 5417 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5418 | |
0a7f1fc0 JB |
5419 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5420 | SYMBOL's name of the end of the modifiers; the string from this | |
5421 | position is the unmodified symbol name. | |
284f4730 | 5422 | |
0a7f1fc0 | 5423 | This doesn't use any caches. */ |
6da3dd3a | 5424 | |
0a7f1fc0 JB |
5425 | static int |
5426 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5427 | Lisp_Object symbol; |
0a7f1fc0 | 5428 | int *modifier_end; |
284f4730 JB |
5429 | { |
5430 | struct Lisp_String *name; | |
5431 | int i; | |
5432 | int modifiers; | |
284f4730 JB |
5433 | |
5434 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 5435 | |
284f4730 JB |
5436 | modifiers = 0; |
5437 | name = XSYMBOL (symbol)->name; | |
5438 | ||
fc932ac6 | 5439 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
5440 | { |
5441 | int this_mod_end = 0; | |
5442 | int this_mod = 0; | |
284f4730 | 5443 | |
6da3dd3a RS |
5444 | /* See if the name continues with a modifier word. |
5445 | Check that the word appears, but don't check what follows it. | |
5446 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5447 | |
6da3dd3a RS |
5448 | switch (name->data[i]) |
5449 | { | |
5450 | #define SINGLE_LETTER_MOD(BIT) \ | |
5451 | (this_mod_end = i + 1, this_mod = BIT) | |
5452 | ||
6da3dd3a RS |
5453 | case 'A': |
5454 | SINGLE_LETTER_MOD (alt_modifier); | |
5455 | break; | |
284f4730 | 5456 | |
6da3dd3a RS |
5457 | case 'C': |
5458 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5459 | break; | |
284f4730 | 5460 | |
6da3dd3a RS |
5461 | case 'H': |
5462 | SINGLE_LETTER_MOD (hyper_modifier); | |
5463 | break; | |
5464 | ||
6da3dd3a RS |
5465 | case 'M': |
5466 | SINGLE_LETTER_MOD (meta_modifier); | |
5467 | break; | |
5468 | ||
6da3dd3a RS |
5469 | case 'S': |
5470 | SINGLE_LETTER_MOD (shift_modifier); | |
5471 | break; | |
5472 | ||
5473 | case 's': | |
6da3dd3a RS |
5474 | SINGLE_LETTER_MOD (super_modifier); |
5475 | break; | |
5476 | ||
0a7f1fc0 | 5477 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
5478 | } |
5479 | ||
5480 | /* If we found no modifier, stop looking for them. */ | |
5481 | if (this_mod_end == 0) | |
5482 | break; | |
5483 | ||
5484 | /* Check there is a dash after the modifier, so that it | |
5485 | really is a modifier. */ | |
fc932ac6 RS |
5486 | if (this_mod_end >= STRING_BYTES (name) |
5487 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
5488 | break; |
5489 | ||
5490 | /* This modifier is real; look for another. */ | |
5491 | modifiers |= this_mod; | |
5492 | i = this_mod_end + 1; | |
5493 | } | |
284f4730 | 5494 | |
0a7f1fc0 | 5495 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5496 | if (! (modifiers & (down_modifier | drag_modifier |
5497 | | double_modifier | triple_modifier)) | |
fc932ac6 | 5498 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 5499 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 5500 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
5501 | modifiers |= click_modifier; |
5502 | ||
5503 | if (modifier_end) | |
5504 | *modifier_end = i; | |
5505 | ||
5506 | return modifiers; | |
5507 | } | |
5508 | ||
0a7f1fc0 JB |
5509 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5510 | prepended to the string BASE[0..BASE_LEN-1]. | |
5511 | This doesn't use any caches. */ | |
5512 | static Lisp_Object | |
301738ed | 5513 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5514 | int modifiers; |
5515 | char *base; | |
301738ed | 5516 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5517 | { |
5518 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5519 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5520 | reference to it. */ | |
301738ed RS |
5521 | char *new_mods |
5522 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5523 | int mod_len; |
284f4730 | 5524 | |
284f4730 | 5525 | { |
0a7f1fc0 JB |
5526 | char *p = new_mods; |
5527 | ||
5528 | /* Only the event queue may use the `up' modifier; it should always | |
5529 | be turned into a click or drag event before presented to lisp code. */ | |
5530 | if (modifiers & up_modifier) | |
5531 | abort (); | |
5532 | ||
5533 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5534 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5535 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5536 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5537 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5538 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5539 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5540 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5541 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5542 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5543 | /* The click modifier is denoted by the absence of other modifiers. */ |
5544 | ||
5545 | *p = '\0'; | |
5546 | ||
5547 | mod_len = p - new_mods; | |
5548 | } | |
284f4730 | 5549 | |
0a7f1fc0 | 5550 | { |
9b8eb840 | 5551 | Lisp_Object new_name; |
df0f2ba1 | 5552 | |
301738ed RS |
5553 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5554 | mod_len + base_len_byte); | |
0a7f1fc0 | 5555 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 5556 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
5557 | |
5558 | return Fintern (new_name, Qnil); | |
5559 | } | |
5560 | } | |
5561 | ||
5562 | ||
0a7f1fc0 JB |
5563 | static char *modifier_names[] = |
5564 | { | |
fbcd35bd | 5565 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5566 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5567 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5568 | }; |
80645119 | 5569 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5570 | |
5571 | static Lisp_Object modifier_symbols; | |
5572 | ||
5573 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5574 | static Lisp_Object | |
5575 | lispy_modifier_list (modifiers) | |
5576 | int modifiers; | |
5577 | { | |
5578 | Lisp_Object modifier_list; | |
5579 | int i; | |
5580 | ||
5581 | modifier_list = Qnil; | |
80645119 | 5582 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5583 | if (modifiers & (1<<i)) |
80645119 JB |
5584 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5585 | modifier_list); | |
0a7f1fc0 JB |
5586 | |
5587 | return modifier_list; | |
5588 | } | |
5589 | ||
5590 | ||
5591 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5592 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5593 | MASK is the set of modifiers present in SYMBOL's name. | |
5594 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5595 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5596 | Qevent_symbol_elements property. */ | |
3d31316f | 5597 | |
1161d367 | 5598 | Lisp_Object |
0a7f1fc0 JB |
5599 | parse_modifiers (symbol) |
5600 | Lisp_Object symbol; | |
5601 | { | |
9b8eb840 | 5602 | Lisp_Object elements; |
0a7f1fc0 | 5603 | |
9b8eb840 | 5604 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5605 | if (CONSP (elements)) |
5606 | return elements; | |
5607 | else | |
5608 | { | |
5609 | int end; | |
ec0faad2 | 5610 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5611 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5612 | Lisp_Object mask; |
5613 | ||
9b8eb840 | 5614 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5615 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5616 | Qnil); |
5617 | ||
c4aeb9d8 | 5618 | if (modifiers & ~VALMASK) |
734fef94 | 5619 | abort (); |
bb9e9bed | 5620 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5621 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5622 | ||
5623 | /* Cache the parsing results on SYMBOL. */ | |
5624 | Fput (symbol, Qevent_symbol_element_mask, | |
5625 | elements); | |
5626 | Fput (symbol, Qevent_symbol_elements, | |
5627 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5628 | ||
5629 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5630 | it would be nice to put that in unmodified's cache. | |
5631 | But we can't, since we're not sure that parse_modifiers is | |
5632 | canonical. */ | |
5633 | ||
5634 | return elements; | |
5635 | } | |
5636 | } | |
5637 | ||
5638 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5639 | BASE must be unmodified. | |
5640 | ||
5641 | This is like apply_modifiers_uncached, but uses BASE's | |
5642 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5643 | Qevent_symbol_elements properties, since it has that info anyway. |
5644 | ||
5645 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5646 | the modified symbol. */ | |
0a7f1fc0 JB |
5647 | static Lisp_Object |
5648 | apply_modifiers (modifiers, base) | |
5649 | int modifiers; | |
5650 | Lisp_Object base; | |
5651 | { | |
7b4aedb9 | 5652 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5653 | |
80645119 | 5654 | /* Mask out upper bits. We don't know where this value's been. */ |
c4aeb9d8 | 5655 | modifiers &= VALMASK; |
80645119 | 5656 | |
0a7f1fc0 | 5657 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5658 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5659 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5660 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5661 | |
5662 | if (CONSP (entry)) | |
7539e11f | 5663 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5664 | else |
5665 | { | |
df0f2ba1 | 5666 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5667 | new_symbol = apply_modifiers_uncached (modifiers, |
5668 | XSYMBOL (base)->name->data, | |
301738ed | 5669 | XSYMBOL (base)->name->size, |
fc932ac6 | 5670 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5671 | |
5672 | /* Add the new symbol to the base's cache. */ | |
5673 | entry = Fcons (index, new_symbol); | |
5674 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5675 | ||
5676 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5677 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5678 | Fput (new_symbol, Qevent_symbol_element_mask, |
5679 | Fcons (base, Fcons (index, Qnil))); | |
5680 | Fput (new_symbol, Qevent_symbol_elements, | |
5681 | Fcons (base, lispy_modifier_list (modifiers))); | |
5682 | } | |
0a7f1fc0 | 5683 | |
df0f2ba1 | 5684 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5685 | |
5686 | You'd think we could just set this once and for all when we | |
5687 | intern the symbol above, but reorder_modifiers may call us when | |
5688 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5689 | because it has a Qmodifier_cache property it must have its |
5690 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5691 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5692 | { | |
9b8eb840 | 5693 | Lisp_Object kind; |
7b4aedb9 | 5694 | |
9b8eb840 | 5695 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5696 | if (! NILP (kind)) |
5697 | Fput (new_symbol, Qevent_kind, kind); | |
5698 | } | |
5699 | ||
5700 | return new_symbol; | |
0a7f1fc0 JB |
5701 | } |
5702 | ||
5703 | ||
5704 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5705 | return a symbol with the modifiers placed in the canonical order. | |
5706 | Canonical order is alphabetical, except for down and drag, which | |
5707 | always come last. The 'click' modifier is never written out. | |
5708 | ||
5709 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5710 | and M-C-foo end up being equivalent in the keymap. */ | |
5711 | ||
5712 | Lisp_Object | |
5713 | reorder_modifiers (symbol) | |
5714 | Lisp_Object symbol; | |
5715 | { | |
5716 | /* It's hopefully okay to write the code this way, since everything | |
5717 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5718 | Lisp_Object parsed; |
0a7f1fc0 | 5719 | |
9b8eb840 | 5720 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5721 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5722 | XCAR (parsed)); | |
0a7f1fc0 JB |
5723 | } |
5724 | ||
5725 | ||
284f4730 JB |
5726 | /* For handling events, we often want to produce a symbol whose name |
5727 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5728 | to some base, like the name of a function key or mouse button. | |
5729 | modify_event_symbol produces symbols of this sort. | |
5730 | ||
5731 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5732 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5733 | in the table. | |
5734 | ||
8e1e4240 GM |
5735 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
5736 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 5737 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
5738 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
5739 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 5740 | |
284f4730 JB |
5741 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5742 | persist between calls to modify_event_symbol that it can use to | |
5743 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5744 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5745 | |
5746 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5747 | |
284f4730 JB |
5748 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5749 | whose prefixes should be applied to the symbol name. | |
5750 | ||
5751 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5752 | the returned symbol. |
88cb0656 JB |
5753 | |
5754 | The symbols we create are supposed to have an | |
eb8c3be9 | 5755 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5756 | in the symbol's name. */ |
5757 | ||
284f4730 | 5758 | static Lisp_Object |
8e1e4240 | 5759 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 5760 | name_table, symbol_table, table_size) |
284f4730 JB |
5761 | int symbol_num; |
5762 | unsigned modifiers; | |
5763 | Lisp_Object symbol_kind; | |
8e1e4240 | 5764 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
5765 | char **name_table; |
5766 | Lisp_Object *symbol_table; | |
2c834fb3 | 5767 | unsigned int table_size; |
284f4730 | 5768 | { |
80e4aa30 RS |
5769 | Lisp_Object value; |
5770 | Lisp_Object symbol_int; | |
5771 | ||
2c834fb3 KH |
5772 | /* Get rid of the "vendor-specific" bit here. */ |
5773 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5774 | |
5775 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5776 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5777 | return Qnil; |
284f4730 | 5778 | |
80e4aa30 RS |
5779 | if (CONSP (*symbol_table)) |
5780 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5781 | ||
0a7f1fc0 | 5782 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5783 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5784 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5785 | we've never used that symbol before. */ | |
80e4aa30 | 5786 | else |
88cb0656 | 5787 | { |
80e4aa30 RS |
5788 | if (! VECTORP (*symbol_table) |
5789 | || XVECTOR (*symbol_table)->size != table_size) | |
5790 | { | |
5791 | Lisp_Object size; | |
0a7f1fc0 | 5792 | |
bb9e9bed | 5793 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5794 | *symbol_table = Fmake_vector (size, Qnil); |
5795 | } | |
284f4730 | 5796 | |
80e4aa30 RS |
5797 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5798 | } | |
284f4730 | 5799 | |
0a7f1fc0 | 5800 | /* Have we already used this symbol before? */ |
80e4aa30 | 5801 | if (NILP (value)) |
284f4730 | 5802 | { |
0a7f1fc0 | 5803 | /* No; let's create it. */ |
8e1e4240 GM |
5804 | if (CONSP (name_alist_or_stem)) |
5805 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
5806 | else if (STRINGP (name_alist_or_stem)) | |
5807 | { | |
5808 | int len = STRING_BYTES (XSTRING (name_alist_or_stem)); | |
5809 | char *buf = (char *) alloca (len + 50); | |
5810 | sprintf (buf, "%s-%d", XSTRING (name_alist_or_stem)->data, | |
5811 | XINT (symbol_int) + 1); | |
5812 | value = intern (buf); | |
5813 | } | |
2ff6714d | 5814 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5815 | value = intern (name_table[symbol_num]); |
b64b4075 | 5816 | |
e98a93eb | 5817 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5818 | if (NILP (value)) |
5819 | { | |
5820 | char *name = x_get_keysym_name (symbol_num); | |
5821 | if (name) | |
5822 | value = intern (name); | |
5823 | } | |
5824 | #endif | |
5825 | ||
b64b4075 | 5826 | if (NILP (value)) |
d1f50460 RS |
5827 | { |
5828 | char buf[20]; | |
5829 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5830 | value = intern (buf); |
d1f50460 | 5831 | } |
0a7f1fc0 | 5832 | |
80e4aa30 | 5833 | if (CONSP (*symbol_table)) |
4205cb08 | 5834 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5835 | else |
5836 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5837 | ||
df0f2ba1 | 5838 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5839 | builds the Qevent_symbol_elements property, which the user |
5840 | cares about. */ | |
80e4aa30 RS |
5841 | apply_modifiers (modifiers & click_modifier, value); |
5842 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5843 | } |
88cb0656 | 5844 | |
0a7f1fc0 | 5845 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5846 | return apply_modifiers (modifiers, value); |
284f4730 | 5847 | } |
6da3dd3a RS |
5848 | \f |
5849 | /* Convert a list that represents an event type, | |
5850 | such as (ctrl meta backspace), into the usual representation of that | |
5851 | event type as a number or a symbol. */ | |
5852 | ||
a1706c30 | 5853 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5854 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5855 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5856 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5857 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5858 | The return value is an event type (a character or symbol) which\n\ |
5859 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5860 | (event_desc) |
5861 | Lisp_Object event_desc; | |
6da3dd3a RS |
5862 | { |
5863 | Lisp_Object base; | |
5864 | int modifiers = 0; | |
5865 | Lisp_Object rest; | |
5866 | ||
5867 | base = Qnil; | |
e57d8fd8 | 5868 | rest = event_desc; |
6da3dd3a RS |
5869 | while (CONSP (rest)) |
5870 | { | |
5871 | Lisp_Object elt; | |
5872 | int this = 0; | |
5873 | ||
7539e11f KR |
5874 | elt = XCAR (rest); |
5875 | rest = XCDR (rest); | |
6da3dd3a | 5876 | |
3d31316f | 5877 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5878 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5879 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5880 | |
5881 | if (this != 0) | |
5882 | modifiers |= this; | |
5883 | else if (!NILP (base)) | |
5884 | error ("Two bases given in one event"); | |
5885 | else | |
5886 | base = elt; | |
5887 | ||
6da3dd3a RS |
5888 | } |
5889 | ||
3d31316f RS |
5890 | /* Let the symbol A refer to the character A. */ |
5891 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5892 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5893 | ||
6da3dd3a RS |
5894 | if (INTEGERP (base)) |
5895 | { | |
3d31316f RS |
5896 | /* Turn (shift a) into A. */ |
5897 | if ((modifiers & shift_modifier) != 0 | |
5898 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5899 | { | |
5900 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5901 | modifiers &= ~shift_modifier; | |
5902 | } | |
5903 | ||
5904 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5905 | if (modifiers & ctrl_modifier) |
3d31316f | 5906 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5907 | | make_ctrl_char (XINT (base))); |
5908 | else | |
5909 | return make_number (modifiers | XINT (base)); | |
5910 | } | |
5911 | else if (SYMBOLP (base)) | |
5912 | return apply_modifiers (modifiers, base); | |
5913 | else | |
8c907a56 GM |
5914 | { |
5915 | error ("Invalid base event"); | |
5916 | return Qnil; | |
5917 | } | |
6da3dd3a RS |
5918 | } |
5919 | ||
3d31316f RS |
5920 | /* Try to recognize SYMBOL as a modifier name. |
5921 | Return the modifier flag bit, or 0 if not recognized. */ | |
5922 | ||
5923 | static int | |
5924 | parse_solitary_modifier (symbol) | |
5925 | Lisp_Object symbol; | |
5926 | { | |
5927 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5928 | ||
5929 | switch (name->data[0]) | |
5930 | { | |
5931 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5932 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5933 | return BIT; |
5934 | ||
5935 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5936 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5937 | && ! strncmp (name->data, NAME, LEN)) \ |
5938 | return BIT; | |
5939 | ||
5940 | case 'A': | |
5941 | SINGLE_LETTER_MOD (alt_modifier); | |
5942 | break; | |
5943 | ||
5944 | case 'a': | |
5945 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5946 | break; | |
5947 | ||
5948 | case 'C': | |
5949 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5950 | break; | |
5951 | ||
5952 | case 'c': | |
5953 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5954 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5955 | break; | |
5956 | ||
5957 | case 'H': | |
5958 | SINGLE_LETTER_MOD (hyper_modifier); | |
5959 | break; | |
5960 | ||
5961 | case 'h': | |
5962 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5963 | break; | |
5964 | ||
5965 | case 'M': | |
5966 | SINGLE_LETTER_MOD (meta_modifier); | |
5967 | break; | |
5968 | ||
5969 | case 'm': | |
5970 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5971 | break; | |
5972 | ||
5973 | case 'S': | |
5974 | SINGLE_LETTER_MOD (shift_modifier); | |
5975 | break; | |
5976 | ||
5977 | case 's': | |
5978 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5979 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5980 | SINGLE_LETTER_MOD (super_modifier); | |
5981 | break; | |
5982 | ||
5983 | case 'd': | |
5984 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5985 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5986 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5987 | break; | |
5988 | ||
5989 | case 't': | |
5990 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5991 | break; | |
5992 | ||
5993 | #undef SINGLE_LETTER_MOD | |
5994 | #undef MULTI_LETTER_MOD | |
5995 | } | |
5996 | ||
5997 | return 0; | |
5998 | } | |
5999 | ||
6da3dd3a RS |
6000 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6001 | Such a list is not valid as an event, | |
6002 | but it can be a Lucid-style event type list. */ | |
6003 | ||
6004 | int | |
6005 | lucid_event_type_list_p (object) | |
6006 | Lisp_Object object; | |
6007 | { | |
6008 | Lisp_Object tail; | |
6009 | ||
6010 | if (! CONSP (object)) | |
6011 | return 0; | |
902ae620 GM |
6012 | |
6013 | if (EQ (XCAR (object), Qhelp_echo) | |
6014 | || EQ (XCAR (object), Qvertical_line) | |
6015 | || EQ (XCAR (object), Qmode_line) | |
6016 | || EQ (XCAR (object), Qheader_line)) | |
6017 | return 0; | |
6da3dd3a | 6018 | |
7539e11f | 6019 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6020 | { |
6021 | Lisp_Object elt; | |
7539e11f | 6022 | elt = XCAR (tail); |
6da3dd3a RS |
6023 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6024 | return 0; | |
6025 | } | |
6026 | ||
6027 | return NILP (tail); | |
6028 | } | |
284f4730 | 6029 | \f |
284f4730 JB |
6030 | /* Store into *addr a value nonzero if terminal input chars are available. |
6031 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6032 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6033 | (In fact, this may actually read some input.) |
6034 | ||
6035 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
6036 | |
6037 | static void | |
d9d4c147 | 6038 | get_input_pending (addr, do_timers_now) |
284f4730 | 6039 | int *addr; |
d9d4c147 | 6040 | int do_timers_now; |
284f4730 JB |
6041 | { |
6042 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 6043 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
6044 | |
6045 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6046 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6047 | return; | |
6048 | ||
6049 | /* Try to read some input and see how much we get. */ | |
6050 | gobble_input (0); | |
d9d4c147 | 6051 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
6052 | } |
6053 | ||
81931ba1 | 6054 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6055 | |
07a59269 | 6056 | void |
284f4730 JB |
6057 | gobble_input (expected) |
6058 | int expected; | |
6059 | { | |
6060 | #ifndef VMS | |
6061 | #ifdef SIGIO | |
6062 | if (interrupt_input) | |
6063 | { | |
32676c08 | 6064 | SIGMASKTYPE mask; |
4f8aaa74 | 6065 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6066 | read_avail_input (expected); |
e065a56e | 6067 | sigsetmask (mask); |
284f4730 JB |
6068 | } |
6069 | else | |
81931ba1 RS |
6070 | #ifdef POLL_FOR_INPUT |
6071 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6072 | { | |
6073 | SIGMASKTYPE mask; | |
4f8aaa74 | 6074 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6075 | read_avail_input (expected); |
6076 | sigsetmask (mask); | |
6077 | } | |
6078 | else | |
87485d6f | 6079 | #endif |
284f4730 JB |
6080 | #endif |
6081 | read_avail_input (expected); | |
6082 | #endif | |
6083 | } | |
a8015ab5 | 6084 | |
241ceaf7 RS |
6085 | /* Put a buffer_switch_event in the buffer |
6086 | so that read_key_sequence will notice the new current buffer. */ | |
6087 | ||
07a59269 | 6088 | void |
a8015ab5 KH |
6089 | record_asynch_buffer_change () |
6090 | { | |
6091 | struct input_event event; | |
a30f0615 RS |
6092 | Lisp_Object tem; |
6093 | ||
a8015ab5 KH |
6094 | event.kind = buffer_switch_event; |
6095 | event.frame_or_window = Qnil; | |
da8f7368 | 6096 | event.arg = Qnil; |
241ceaf7 | 6097 | |
f65e6f7d | 6098 | #ifdef subprocesses |
a30f0615 RS |
6099 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6100 | The purpose of the event is to make read_key_sequence look up the | |
6101 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6102 | and the event could cause trouble by messing up (input-pending-p). */ | |
6103 | tem = Fwaiting_for_user_input_p (); | |
6104 | if (NILP (tem)) | |
6105 | return; | |
f65e6f7d RS |
6106 | #else |
6107 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6108 | return; | |
6109 | #endif | |
a30f0615 | 6110 | |
241ceaf7 RS |
6111 | /* Make sure no interrupt happens while storing the event. */ |
6112 | #ifdef SIGIO | |
6113 | if (interrupt_input) | |
6114 | { | |
6115 | SIGMASKTYPE mask; | |
4f8aaa74 | 6116 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6117 | kbd_buffer_store_event (&event); |
6118 | sigsetmask (mask); | |
6119 | } | |
6120 | else | |
6121 | #endif | |
6122 | { | |
6123 | stop_polling (); | |
6124 | kbd_buffer_store_event (&event); | |
6125 | start_polling (); | |
6126 | } | |
a8015ab5 | 6127 | } |
284f4730 JB |
6128 | \f |
6129 | #ifndef VMS | |
6130 | ||
6131 | /* Read any terminal input already buffered up by the system | |
6132 | into the kbd_buffer, but do not wait. | |
6133 | ||
6134 | EXPECTED should be nonzero if the caller knows there is some input. | |
6135 | ||
6136 | Except on VMS, all input is read by this function. | |
6137 | If interrupt_input is nonzero, this function MUST be called | |
6138 | only when SIGIO is blocked. | |
6139 | ||
6140 | Returns the number of keyboard chars read, or -1 meaning | |
6141 | this is a bad time to try to read input. */ | |
6142 | ||
6143 | static int | |
6144 | read_avail_input (expected) | |
6145 | int expected; | |
6146 | { | |
6147 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6148 | register int i; | |
6149 | int nread; | |
6150 | ||
6151 | if (read_socket_hook) | |
6152 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6153 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6154 | else |
6155 | { | |
17270835 RS |
6156 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6157 | the kbd_buffer can really hold. That may prevent loss | |
6158 | of characters on some systems when input is stuffed at us. */ | |
6159 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6160 | int n_to_read; |
284f4730 | 6161 | |
58788063 | 6162 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6163 | #ifdef WINDOWSNT |
6164 | return 0; | |
6165 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6166 | #ifdef MSDOS |
58788063 RS |
6167 | n_to_read = dos_keysns (); |
6168 | if (n_to_read == 0) | |
6169 | return 0; | |
c3a2738c | 6170 | #else /* not MSDOS */ |
284f4730 JB |
6171 | #ifdef FIONREAD |
6172 | /* Find out how much input is available. */ | |
437f6112 | 6173 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6174 | /* Formerly simply reported no input, but that sometimes led to |
6175 | a failure of Emacs to terminate. | |
6176 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6177 | /* ??? Is it really right to send the signal just to this process |
6178 | rather than to the whole process group? | |
6179 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 6180 | kill (getpid (), SIGHUP); |
58788063 | 6181 | if (n_to_read == 0) |
284f4730 | 6182 | return 0; |
58788063 RS |
6183 | if (n_to_read > sizeof cbuf) |
6184 | n_to_read = sizeof cbuf; | |
284f4730 | 6185 | #else /* no FIONREAD */ |
0c04a67e | 6186 | #if defined (USG) || defined (DGUX) |
284f4730 | 6187 | /* Read some input if available, but don't wait. */ |
58788063 | 6188 | n_to_read = sizeof cbuf; |
437f6112 | 6189 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6190 | #else |
6191 | you lose; | |
6192 | #endif | |
6193 | #endif | |
80e4aa30 | 6194 | #endif /* not MSDOS */ |
bc536d84 | 6195 | #endif /* not WINDOWSNT */ |
284f4730 | 6196 | |
58788063 RS |
6197 | /* Now read; for one reason or another, this will not block. |
6198 | NREAD is set to the number of chars read. */ | |
9134775b | 6199 | do |
284f4730 | 6200 | { |
80e4aa30 | 6201 | #ifdef MSDOS |
0c04a67e | 6202 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6203 | nread = 1; |
6204 | #else | |
68c45bf0 | 6205 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6206 | #endif |
49854566 RS |
6207 | /* POSIX infers that processes which are not in the session leader's |
6208 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6209 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6210 | when the control tty is taken away. |
6211 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6212 | if (nread == -1 && errno == EIO) | |
6213 | kill (0, SIGHUP); | |
762f2b92 | 6214 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6215 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6216 | This looks incorrect, but it isn't, because _BSD causes | |
6217 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6218 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6219 | if (nread == 0) |
80e4aa30 | 6220 | kill (0, SIGHUP); |
284f4730 | 6221 | #endif |
9134775b | 6222 | } |
791587ee KH |
6223 | while ( |
6224 | /* We used to retry the read if it was interrupted. | |
6225 | But this does the wrong thing when O_NDELAY causes | |
6226 | an EAGAIN error. Does anybody know of a situation | |
6227 | where a retry is actually needed? */ | |
6228 | #if 0 | |
6229 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6230 | #ifdef EFAULT |
9134775b | 6231 | || errno == EFAULT |
80e4aa30 | 6232 | #endif |
284f4730 | 6233 | #ifdef EBADSLT |
9134775b | 6234 | || errno == EBADSLT |
284f4730 | 6235 | #endif |
791587ee KH |
6236 | ) |
6237 | #else | |
6238 | 0 | |
6239 | #endif | |
6240 | ); | |
284f4730 JB |
6241 | |
6242 | #ifndef FIONREAD | |
02c2c53f | 6243 | #if defined (USG) || defined (DGUX) |
437f6112 | 6244 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 6245 | #endif /* USG or DGUX */ |
284f4730 JB |
6246 | #endif /* no FIONREAD */ |
6247 | for (i = 0; i < nread; i++) | |
6248 | { | |
6249 | buf[i].kind = ascii_keystroke; | |
86e5706b | 6250 | buf[i].modifiers = 0; |
b04904fb | 6251 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6252 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6253 | if (meta_key != 2) |
6254 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6255 | |
6256 | buf[i].code = cbuf[i]; | |
788f89eb | 6257 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6258 | buf[i].arg = Qnil; |
284f4730 JB |
6259 | } |
6260 | } | |
6261 | ||
6262 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6263 | for (i = 0; i < nread; i++) | |
6264 | { | |
6265 | kbd_buffer_store_event (&buf[i]); | |
6266 | /* Don't look at input that follows a C-g too closely. | |
6267 | This reduces lossage due to autorepeat on C-g. */ | |
6268 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 6269 | && buf[i].code == quit_char) |
284f4730 JB |
6270 | break; |
6271 | } | |
6272 | ||
6273 | return nread; | |
6274 | } | |
6275 | #endif /* not VMS */ | |
6276 | \f | |
6277 | #ifdef SIGIO /* for entire page */ | |
6278 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6279 | ||
2ce30ea2 | 6280 | SIGTYPE |
284f4730 JB |
6281 | input_available_signal (signo) |
6282 | int signo; | |
6283 | { | |
6284 | /* Must preserve main program's value of errno. */ | |
6285 | int old_errno = errno; | |
6286 | #ifdef BSD4_1 | |
6287 | extern int select_alarmed; | |
6288 | #endif | |
6289 | ||
5970a8cb | 6290 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6291 | /* USG systems forget handlers when they are used; |
6292 | must reestablish each time */ | |
6293 | signal (signo, input_available_signal); | |
6294 | #endif /* USG */ | |
6295 | ||
6296 | #ifdef BSD4_1 | |
6297 | sigisheld (SIGIO); | |
6298 | #endif | |
6299 | ||
ffd56f97 JB |
6300 | if (input_available_clear_time) |
6301 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6302 | |
6303 | while (1) | |
6304 | { | |
6305 | int nread; | |
6306 | nread = read_avail_input (1); | |
6307 | /* -1 means it's not ok to read the input now. | |
6308 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6309 | 0 means there was no keyboard input available. */ | |
6310 | if (nread <= 0) | |
6311 | break; | |
6312 | ||
6313 | #ifdef BSD4_1 | |
6314 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6315 | #endif | |
6316 | } | |
6317 | ||
6318 | #ifdef BSD4_1 | |
6319 | sigfree (); | |
6320 | #endif | |
6321 | errno = old_errno; | |
6322 | } | |
6323 | #endif /* SIGIO */ | |
ad163903 JB |
6324 | |
6325 | /* Send ourselves a SIGIO. | |
6326 | ||
6327 | This function exists so that the UNBLOCK_INPUT macro in | |
6328 | blockinput.h can have some way to take care of input we put off | |
6329 | dealing with, without assuming that every file which uses | |
6330 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6331 | void | |
6332 | reinvoke_input_signal () | |
6333 | { | |
df0f2ba1 | 6334 | #ifdef SIGIO |
87dd9b9b | 6335 | kill (getpid (), SIGIO); |
ad163903 JB |
6336 | #endif |
6337 | } | |
6338 | ||
6339 | ||
284f4730 JB |
6340 | \f |
6341 | /* Return the prompt-string of a sparse keymap. | |
6342 | This is the first element which is a string. | |
6343 | Return nil if there is none. */ | |
6344 | ||
6345 | Lisp_Object | |
6346 | map_prompt (map) | |
6347 | Lisp_Object map; | |
6348 | { | |
6349 | while (CONSP (map)) | |
6350 | { | |
6351 | register Lisp_Object tem; | |
6352 | tem = Fcar (map); | |
8c18cbfb | 6353 | if (STRINGP (tem)) |
284f4730 JB |
6354 | return tem; |
6355 | map = Fcdr (map); | |
6356 | } | |
6357 | return Qnil; | |
6358 | } | |
6359 | ||
25126faa GM |
6360 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object)); |
6361 | static void menu_bar_one_keymap P_ ((Lisp_Object)); | |
b7c49376 RS |
6362 | |
6363 | /* These variables hold the vector under construction within | |
6364 | menu_bar_items and its subroutines, and the current index | |
6365 | for storing into that vector. */ | |
6366 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6367 | static int menu_bar_items_index; |
5ec75a55 | 6368 | |
b7c49376 RS |
6369 | /* Return a vector of menu items for a menu bar, appropriate |
6370 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6371 | KEY STRING MAPLIST. |
b7c49376 RS |
6372 | |
6373 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6374 | |
6375 | Lisp_Object | |
b7c49376 RS |
6376 | menu_bar_items (old) |
6377 | Lisp_Object old; | |
5ec75a55 RS |
6378 | { |
6379 | /* The number of keymaps we're scanning right now, and the number of | |
6380 | keymaps we have allocated space for. */ | |
6381 | int nmaps; | |
6382 | ||
6383 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6384 | in the current keymaps, or nil where it is not a prefix. */ | |
6385 | Lisp_Object *maps; | |
6386 | ||
aebfea68 | 6387 | Lisp_Object def, tail; |
5ec75a55 RS |
6388 | |
6389 | Lisp_Object result; | |
6390 | ||
6391 | int mapno; | |
47d319aa | 6392 | Lisp_Object oquit; |
5ec75a55 | 6393 | |
b7c49376 RS |
6394 | int i; |
6395 | ||
6396 | struct gcpro gcpro1; | |
6397 | ||
db60d856 JB |
6398 | /* In order to build the menus, we need to call the keymap |
6399 | accessors. They all call QUIT. But this function is called | |
6400 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6401 | quitting while building the menus. |
6402 | We do this instead of specbind because (1) errors will clear it anyway | |
6403 | and (2) this avoids risk of specpdl overflow. */ | |
6404 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6405 | Vinhibit_quit = Qt; |
db60d856 | 6406 | |
b7c49376 RS |
6407 | if (!NILP (old)) |
6408 | menu_bar_items_vector = old; | |
6409 | else | |
6410 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6411 | menu_bar_items_index = 0; | |
6412 | ||
6413 | GCPRO1 (menu_bar_items_vector); | |
6414 | ||
5ec75a55 RS |
6415 | /* Build our list of keymaps. |
6416 | If we recognize a function key and replace its escape sequence in | |
6417 | keybuf with its symbol, or if the sequence starts with a mouse | |
6418 | click and we need to switch buffers, we jump back here to rebuild | |
6419 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6420 | { |
5ec75a55 RS |
6421 | Lisp_Object *tmaps; |
6422 | ||
217258d5 | 6423 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6424 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6425 | { |
217258d5 KH |
6426 | /* Yes, use them (if non-nil) as well as the global map. */ |
6427 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6428 | nmaps = 0; | |
6429 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6430 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6431 | if (!NILP (Voverriding_local_map)) | |
6432 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6433 | } |
6434 | else | |
6435 | { | |
30690496 DL |
6436 | /* No, so use major and minor mode keymaps and keymap property. */ |
6437 | int extra_maps = 2; | |
24a40fbb | 6438 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
6439 | if (!NILP (map)) |
6440 | extra_maps = 3; | |
217258d5 | 6441 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
6442 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
6443 | * sizeof (maps[0])); | |
217258d5 | 6444 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 6445 | if (!NILP (map)) |
9f83cf0b | 6446 | maps[nmaps++] = map; |
24a40fbb | 6447 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
9dd3131c | 6448 | } |
217258d5 | 6449 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6450 | } |
6451 | ||
6452 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6453 | ||
6454 | result = Qnil; | |
6455 | ||
e58aa385 | 6456 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6457 | if (!NILP (maps[mapno])) |
6458 | { | |
341a09cf SM |
6459 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6460 | 0, 1); | |
02067692 | 6461 | if (CONSP (def)) |
25126faa GM |
6462 | menu_bar_one_keymap (def); |
6463 | } | |
5ec75a55 | 6464 | |
b7c49376 RS |
6465 | /* Move to the end those items that should be at the end. */ |
6466 | ||
7539e11f | 6467 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6468 | { |
b7c49376 RS |
6469 | int i; |
6470 | int end = menu_bar_items_index; | |
6471 | ||
35b3402f | 6472 | for (i = 0; i < end; i += 4) |
7539e11f | 6473 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6474 | { |
35b3402f | 6475 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6476 | /* Move the item at index I to the end, |
6477 | shifting all the others forward. */ | |
6478 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6479 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6480 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6481 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6482 | if (end > i + 4) | |
6483 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6484 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6485 | (end - i - 4) * sizeof (Lisp_Object)); |
6486 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6487 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6488 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6489 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6490 | break; |
b7c49376 RS |
6491 | } |
6492 | } | |
9f9c0e27 | 6493 | |
0c9071cd | 6494 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6495 | i = menu_bar_items_index; |
35b3402f | 6496 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6497 | { |
6498 | Lisp_Object tem; | |
b7c49376 RS |
6499 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6500 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6501 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6502 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6503 | } |
b7c49376 RS |
6504 | /* Add this item. */ |
6505 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6506 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6507 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6508 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6509 | menu_bar_items_index = i; |
a73c5e29 | 6510 | |
47d319aa | 6511 | Vinhibit_quit = oquit; |
b7c49376 RS |
6512 | UNGCPRO; |
6513 | return menu_bar_items_vector; | |
5ec75a55 RS |
6514 | } |
6515 | \f | |
6516 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 6517 | in menu_bar_items_vector. */ |
5ec75a55 | 6518 | |
759860a6 RS |
6519 | static Lisp_Object menu_bar_one_keymap_changed_items; |
6520 | ||
b7c49376 RS |
6521 | static void |
6522 | menu_bar_one_keymap (keymap) | |
6523 | Lisp_Object keymap; | |
5ec75a55 | 6524 | { |
03cee6ae | 6525 | Lisp_Object tail, item; |
5ec75a55 | 6526 | |
759860a6 RS |
6527 | menu_bar_one_keymap_changed_items = Qnil; |
6528 | ||
5ec75a55 | 6529 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 6530 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 6531 | { |
7539e11f | 6532 | item = XCAR (tail); |
8c18cbfb | 6533 | if (CONSP (item)) |
7539e11f | 6534 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 6535 | else if (VECTORP (item)) |
5ec75a55 RS |
6536 | { |
6537 | /* Loop over the char values represented in the vector. */ | |
6538 | int len = XVECTOR (item)->size; | |
6539 | int c; | |
6540 | for (c = 0; c < len; c++) | |
6541 | { | |
6542 | Lisp_Object character; | |
bb9e9bed | 6543 | XSETFASTINT (character, c); |
e8886a1d | 6544 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
6545 | } |
6546 | } | |
6547 | } | |
5ec75a55 RS |
6548 | } |
6549 | ||
f5e09c8b RS |
6550 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6551 | If there's already an item for KEY, add this DEF to it. */ | |
6552 | ||
e8886a1d RS |
6553 | Lisp_Object item_properties; |
6554 | ||
b7c49376 | 6555 | static void |
e8886a1d RS |
6556 | menu_bar_item (key, item) |
6557 | Lisp_Object key, item; | |
5ec75a55 | 6558 | { |
e8886a1d | 6559 | struct gcpro gcpro1; |
b7c49376 | 6560 | int i; |
759860a6 | 6561 | Lisp_Object tem; |
5ec75a55 | 6562 | |
e8886a1d | 6563 | if (EQ (item, Qundefined)) |
e58aa385 | 6564 | { |
f5e09c8b | 6565 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6566 | discard any previously made menu bar item. */ |
b7c49376 | 6567 | |
35b3402f | 6568 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6569 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6570 | { | |
35b3402f RS |
6571 | if (menu_bar_items_index > i + 4) |
6572 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6573 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6574 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6575 | menu_bar_items_index -= 4; | |
b7c49376 | 6576 | } |
e58aa385 RS |
6577 | } |
6578 | ||
759860a6 RS |
6579 | /* If this keymap has already contributed to this KEY, |
6580 | don't contribute to it a second time. */ | |
6581 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6582 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6583 | return; |
6584 | ||
6585 | menu_bar_one_keymap_changed_items | |
6586 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6587 | ||
9cd2ced7 SM |
6588 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6589 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6590 | it still correctly hides any further menu item. */ | |
6591 | GCPRO1 (key); | |
6592 | i = parse_menu_item (item, 0, 1); | |
6593 | UNGCPRO; | |
6594 | if (!i) | |
6595 | return; | |
6596 | ||
e8886a1d RS |
6597 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6598 | ||
f5e09c8b | 6599 | /* Find any existing item for this KEY. */ |
35b3402f | 6600 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6601 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6602 | break; | |
6603 | ||
f5e09c8b | 6604 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6605 | if (i == menu_bar_items_index) |
6606 | { | |
6607 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6608 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6609 | { |
6610 | Lisp_Object tem; | |
b7c49376 RS |
6611 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6612 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6613 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6614 | menu_bar_items_vector = tem; | |
6615 | } | |
e8886a1d | 6616 | |
b7c49376 RS |
6617 | /* Add this item. */ |
6618 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6619 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6620 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6621 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6622 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6623 | menu_bar_items_index = i; |
6624 | } | |
e8886a1d | 6625 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6626 | else |
6627 | { | |
6628 | Lisp_Object old; | |
6629 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6630 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6631 | } |
5ec75a55 RS |
6632 | } |
6633 | \f | |
e8886a1d RS |
6634 | /* This is used as the handler when calling menu_item_eval_property. */ |
6635 | static Lisp_Object | |
6636 | menu_item_eval_property_1 (arg) | |
6637 | Lisp_Object arg; | |
6638 | { | |
6639 | /* If we got a quit from within the menu computation, | |
6640 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6641 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6642 | Fsignal (Qquit, Qnil); |
6643 | ||
6644 | return Qnil; | |
6645 | } | |
6646 | ||
6647 | /* Evaluate an expression and return the result (or nil if something | |
6648 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6649 | Lisp_Object |
e8886a1d RS |
6650 | menu_item_eval_property (sexpr) |
6651 | Lisp_Object sexpr; | |
6652 | { | |
44e553a3 | 6653 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6654 | Lisp_Object val; |
44e553a3 | 6655 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6656 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6657 | menu_item_eval_property_1); | |
44e553a3 | 6658 | return unbind_to (count, val); |
e8886a1d RS |
6659 | } |
6660 | ||
6661 | /* This function parses a menu item and leaves the result in the | |
6662 | vector item_properties. | |
6663 | ITEM is a key binding, a possible menu item. | |
6664 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6665 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6666 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6667 | top level. |
fd3613d7 | 6668 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6669 | parse_menu_item returns true if the item is a menu item and false |
6670 | otherwise. */ | |
6671 | ||
6672 | int | |
6673 | parse_menu_item (item, notreal, inmenubar) | |
6674 | Lisp_Object item; | |
6675 | int notreal, inmenubar; | |
6676 | { | |
adc1d5c8 | 6677 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6678 | Lisp_Object cachelist; |
6679 | Lisp_Object filter; | |
6680 | Lisp_Object keyhint; | |
e8886a1d | 6681 | int i; |
74c1de23 RS |
6682 | int newcache = 0; |
6683 | ||
07ba902e RS |
6684 | cachelist = Qnil; |
6685 | filter = Qnil; | |
6686 | keyhint = Qnil; | |
6687 | ||
e8886a1d RS |
6688 | if (!CONSP (item)) |
6689 | return 0; | |
6690 | ||
e8886a1d RS |
6691 | /* Create item_properties vector if necessary. */ |
6692 | if (NILP (item_properties)) | |
6693 | item_properties | |
6694 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6695 | ||
6696 | /* Initialize optional entries. */ | |
6697 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
6698 | AREF (item_properties, i) = Qnil; |
6699 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
e8886a1d RS |
6700 | |
6701 | /* Save the item here to protect it from GC. */ | |
3626fb1a | 6702 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 6703 | |
7539e11f | 6704 | item_string = XCAR (item); |
e8886a1d RS |
6705 | |
6706 | start = item; | |
7539e11f | 6707 | item = XCDR (item); |
e8886a1d RS |
6708 | if (STRINGP (item_string)) |
6709 | { | |
6710 | /* Old format menu item. */ | |
3626fb1a | 6711 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6712 | |
6713 | /* Maybe help string. */ | |
7539e11f | 6714 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 6715 | { |
3626fb1a | 6716 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6717 | start = item; |
7539e11f | 6718 | item = XCDR (item); |
e8886a1d RS |
6719 | } |
6720 | ||
31f84d03 | 6721 | /* Maybe key binding cache. */ |
7539e11f KR |
6722 | if (CONSP (item) && CONSP (XCAR (item)) |
6723 | && (NILP (XCAR (XCAR (item))) | |
6724 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6725 | { |
7539e11f KR |
6726 | cachelist = XCAR (item); |
6727 | item = XCDR (item); | |
e8886a1d RS |
6728 | } |
6729 | ||
6730 | /* This is the real definition--the function to run. */ | |
3626fb1a | 6731 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
6732 | |
6733 | /* Get enable property, if any. */ | |
6734 | if (SYMBOLP (item)) | |
6735 | { | |
6736 | tem = Fget (item, Qmenu_enable); | |
6737 | if (!NILP (tem)) | |
3626fb1a | 6738 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6739 | } |
6740 | } | |
6741 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6742 | { | |
6743 | /* New format menu item. */ | |
3626fb1a | 6744 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 6745 | start = XCDR (item); |
e8886a1d RS |
6746 | if (CONSP (start)) |
6747 | { | |
6748 | /* We have a real binding. */ | |
3626fb1a | 6749 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 6750 | |
7539e11f | 6751 | item = XCDR (start); |
e8886a1d | 6752 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6753 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6754 | { |
7539e11f KR |
6755 | cachelist = XCAR (item); |
6756 | item = XCDR (item); | |
e8886a1d RS |
6757 | } |
6758 | ||
6759 | /* Parse properties. */ | |
7539e11f | 6760 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6761 | { |
7539e11f KR |
6762 | tem = XCAR (item); |
6763 | item = XCDR (item); | |
e8886a1d RS |
6764 | |
6765 | if (EQ (tem, QCenable)) | |
3626fb1a | 6766 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
6767 | else if (EQ (tem, QCvisible) && !notreal) |
6768 | { | |
6769 | /* If got a visible property and that evaluates to nil | |
6770 | then ignore this item. */ | |
7539e11f | 6771 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6772 | if (NILP (tem)) |
adc1d5c8 | 6773 | return 0; |
e8886a1d RS |
6774 | } |
6775 | else if (EQ (tem, QChelp)) | |
3626fb1a | 6776 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6777 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6778 | filter = item; |
6779 | else if (EQ (tem, QCkey_sequence)) | |
6780 | { | |
7539e11f | 6781 | tem = XCAR (item); |
74c1de23 RS |
6782 | if (NILP (cachelist) |
6783 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6784 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6785 | keyhint = item; | |
6786 | } | |
6787 | else if (EQ (tem, QCkeys)) | |
6788 | { | |
7539e11f | 6789 | tem = XCAR (item); |
03cee6ae | 6790 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 6791 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 6792 | } |
7539e11f | 6793 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6794 | { |
74c1de23 | 6795 | Lisp_Object type; |
7539e11f KR |
6796 | tem = XCAR (item); |
6797 | type = XCAR (tem); | |
e8886a1d RS |
6798 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6799 | { | |
3626fb1a | 6800 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 6801 | = XCDR (tem); |
3626fb1a | 6802 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
6803 | = type; |
6804 | } | |
6805 | } | |
7539e11f | 6806 | item = XCDR (item); |
e8886a1d RS |
6807 | } |
6808 | } | |
6809 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6810 | return 0; |
e8886a1d RS |
6811 | } |
6812 | else | |
adc1d5c8 | 6813 | return 0; /* not a menu item */ |
e8886a1d RS |
6814 | |
6815 | /* If item string is not a string, evaluate it to get string. | |
6816 | If we don't get a string, skip this item. */ | |
3626fb1a | 6817 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
6818 | if (!(STRINGP (item_string) || notreal)) |
6819 | { | |
6820 | item_string = menu_item_eval_property (item_string); | |
6821 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6822 | return 0; |
3626fb1a | 6823 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6824 | } |
6825 | ||
6826 | /* If got a filter apply it on definition. */ | |
3626fb1a | 6827 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
6828 | if (!NILP (filter)) |
6829 | { | |
7539e11f | 6830 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6831 | list2 (Qquote, def))); |
6832 | ||
3626fb1a | 6833 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
6834 | } |
6835 | ||
6836 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6837 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6838 | if (NILP (def)) |
adc1d5c8 | 6839 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6840 | |
6841 | /* Enable or disable selection of item. */ | |
3626fb1a | 6842 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
6843 | if (!EQ (tem, Qt)) |
6844 | { | |
6845 | if (notreal) | |
6846 | tem = Qt; | |
6847 | else | |
6848 | tem = menu_item_eval_property (tem); | |
6849 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6850 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 6851 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6852 | } |
6853 | ||
6854 | /* See if this is a separate pane or a submenu. */ | |
3626fb1a | 6855 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 6856 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 6857 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 6858 | if (CONSP (tem)) |
e8886a1d | 6859 | { |
3626fb1a GM |
6860 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
6861 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
6862 | return 1; |
6863 | } | |
3626fb1a | 6864 | |
9ac425d1 RS |
6865 | /* At the top level in the menu bar, do likewise for commands also. |
6866 | The menu bar does not display equivalent key bindings anyway. | |
6867 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6868 | if (inmenubar > 0) | |
6869 | return 1; | |
e8886a1d RS |
6870 | |
6871 | /* This is a command. See if there is an equivalent key binding. */ | |
6872 | if (NILP (cachelist)) | |
6873 | { | |
74c1de23 | 6874 | /* We have to create a cachelist. */ |
e8886a1d | 6875 | CHECK_IMPURE (start); |
7539e11f KR |
6876 | XCDR (start) = Fcons (Fcons (Qnil, Qnil), XCDR (start)); |
6877 | cachelist = XCAR (XCDR (start)); | |
74c1de23 | 6878 | newcache = 1; |
3626fb1a | 6879 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6880 | if (!NILP (keyhint)) |
6881 | { | |
7539e11f | 6882 | XCAR (cachelist) = XCAR (keyhint); |
74c1de23 RS |
6883 | newcache = 0; |
6884 | } | |
6885 | else if (STRINGP (tem)) | |
6886 | { | |
7539e11f KR |
6887 | XCDR (cachelist) = Fsubstitute_command_keys (tem); |
6888 | XCAR (cachelist) = Qt; | |
74c1de23 RS |
6889 | } |
6890 | } | |
3626fb1a | 6891 | |
7539e11f | 6892 | tem = XCAR (cachelist); |
74c1de23 RS |
6893 | if (!EQ (tem, Qt)) |
6894 | { | |
6895 | int chkcache = 0; | |
6896 | Lisp_Object prefix; | |
6897 | ||
6898 | if (!NILP (tem)) | |
6899 | tem = Fkey_binding (tem, Qnil); | |
6900 | ||
3626fb1a | 6901 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6902 | if (CONSP (prefix)) |
6903 | { | |
7539e11f KR |
6904 | def = XCAR (prefix); |
6905 | prefix = XCDR (prefix); | |
74c1de23 | 6906 | } |
e8886a1d | 6907 | else |
3626fb1a | 6908 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 6909 | |
3626fb1a GM |
6910 | if (!update_menu_bindings) |
6911 | chkcache = 0; | |
6912 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
6913 | { |
6914 | if (newcache /* Always check first time. */ | |
6915 | /* Should we check everything when precomputing key | |
6916 | bindings? */ | |
74c1de23 RS |
6917 | /* If something had no key binding before, don't recheck it |
6918 | because that is too slow--except if we have a list of | |
6919 | rebound commands in Vdefine_key_rebound_commands, do | |
6920 | recheck any command that appears in that list. */ | |
6921 | || (CONSP (Vdefine_key_rebound_commands) | |
6922 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6923 | chkcache = 1; | |
6924 | } | |
6925 | /* We had a saved key. Is it still bound to the command? */ | |
6926 | else if (NILP (tem) | |
03cee6ae GM |
6927 | || (!EQ (tem, def) |
6928 | /* If the command is an alias for another | |
6929 | (such as lmenu.el set it up), check if the | |
6930 | original command matches the cached command. */ | |
6931 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
6932 | chkcache = 1; /* Need to recompute key binding. */ |
6933 | ||
6934 | if (chkcache) | |
6935 | { | |
6936 | /* Recompute equivalent key binding. If the command is an alias | |
6937 | for another (such as lmenu.el set it up), see if the original | |
6938 | command name has equivalent keys. Otherwise look up the | |
6939 | specified command itself. We don't try both, because that | |
6940 | makes lmenu menus slow. */ | |
3626fb1a GM |
6941 | if (SYMBOLP (def) |
6942 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
6943 | && ! NILP (Fget (def, Qmenu_alias))) |
6944 | def = XSYMBOL (def)->function; | |
6945 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
7539e11f | 6946 | XCAR (cachelist) = tem; |
74c1de23 RS |
6947 | if (NILP (tem)) |
6948 | { | |
7539e11f | 6949 | XCDR (cachelist) = Qnil; |
74c1de23 RS |
6950 | chkcache = 0; |
6951 | } | |
6952 | } | |
7539e11f | 6953 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 6954 | { |
7539e11f | 6955 | tem = XCAR (cachelist); |
74c1de23 RS |
6956 | chkcache = 1; |
6957 | } | |
6958 | ||
6959 | newcache = chkcache; | |
6960 | if (chkcache) | |
6961 | { | |
6962 | tem = Fkey_description (tem); | |
6963 | if (CONSP (prefix)) | |
6964 | { | |
7539e11f KR |
6965 | if (STRINGP (XCAR (prefix))) |
6966 | tem = concat2 (XCAR (prefix), tem); | |
6967 | if (STRINGP (XCDR (prefix))) | |
6968 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 6969 | } |
7539e11f | 6970 | XCDR (cachelist) = tem; |
74c1de23 RS |
6971 | } |
6972 | } | |
6973 | ||
7539e11f | 6974 | tem = XCDR (cachelist); |
74c1de23 | 6975 | if (newcache && !NILP (tem)) |
e8886a1d | 6976 | { |
74c1de23 | 6977 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
7539e11f | 6978 | XCDR (cachelist) = tem; |
e8886a1d RS |
6979 | } |
6980 | ||
6981 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6982 | if (notreal) | |
adc1d5c8 | 6983 | return 1; |
e8886a1d RS |
6984 | |
6985 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 6986 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
6987 | |
6988 | /* Include this when menu help is implemented. | |
6989 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6990 | if (!(NILP (tem) || STRINGP (tem))) | |
6991 | { | |
6992 | tem = menu_item_eval_property (tem); | |
6993 | if (!STRINGP (tem)) | |
6994 | tem = Qnil; | |
6995 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6996 | } | |
e8886a1d RS |
6997 | */ |
6998 | ||
6999 | /* Handle radio buttons or toggle boxes. */ | |
3626fb1a | 7000 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7001 | if (!NILP (tem)) |
3626fb1a | 7002 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7003 | = menu_item_eval_property (tem); |
7004 | ||
e8886a1d RS |
7005 | return 1; |
7006 | } | |
7ee32cda GM |
7007 | |
7008 | ||
7009 | \f | |
7010 | /*********************************************************************** | |
7011 | Tool-bars | |
7012 | ***********************************************************************/ | |
7013 | ||
9ea173e8 GM |
7014 | /* A vector holding tool bar items while they are parsed in function |
7015 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
7016 | in the vector. */ | |
7ee32cda | 7017 | |
9ea173e8 | 7018 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7019 | |
9ea173e8 GM |
7020 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7021 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7022 | |
9ea173e8 | 7023 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7024 | |
9ea173e8 | 7025 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7026 | |
9ea173e8 | 7027 | static int ntool_bar_items; |
7ee32cda | 7028 | |
9ea173e8 | 7029 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7030 | |
9ea173e8 | 7031 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7032 | Lisp_Object QCimage; |
7033 | ||
7034 | /* Function prototypes. */ | |
7035 | ||
9ea173e8 GM |
7036 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7037 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7038 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7039 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7040 | |
7041 | ||
9ea173e8 | 7042 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7043 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7044 | tool bar items found. */ |
7ee32cda GM |
7045 | |
7046 | Lisp_Object | |
9ea173e8 | 7047 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7048 | Lisp_Object reuse; |
7049 | int *nitems; | |
7050 | { | |
7051 | Lisp_Object *maps; | |
7052 | int nmaps, i; | |
7053 | Lisp_Object oquit; | |
7054 | Lisp_Object *tmaps; | |
7055 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
7056 | extern Lisp_Object Voverriding_local_map; | |
7057 | ||
7058 | *nitems = 0; | |
7059 | ||
7060 | /* In order to build the menus, we need to call the keymap | |
7061 | accessors. They all call QUIT. But this function is called | |
7062 | during redisplay, during which a quit is fatal. So inhibit | |
7063 | quitting while building the menus. We do this instead of | |
7064 | specbind because (1) errors will clear it anyway and (2) this | |
7065 | avoids risk of specpdl overflow. */ | |
7066 | oquit = Vinhibit_quit; | |
7067 | Vinhibit_quit = Qt; | |
7068 | ||
9ea173e8 GM |
7069 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7070 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7071 | |
7072 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7073 | to process. */ | |
7074 | ||
7075 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7076 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7077 | { | |
7078 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7079 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7080 | nmaps = 0; | |
7081 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7082 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7083 | if (!NILP (Voverriding_local_map)) | |
7084 | maps[nmaps++] = Voverriding_local_map; | |
7085 | } | |
7086 | else | |
7087 | { | |
30690496 DL |
7088 | /* No, so use major and minor mode keymaps and keymap property. */ |
7089 | int extra_maps = 2; | |
24a40fbb | 7090 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
7091 | if (!NILP (map)) |
7092 | extra_maps = 3; | |
7ee32cda | 7093 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
7094 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
7095 | * sizeof (maps[0])); | |
7ee32cda | 7096 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 7097 | if (!NILP (map)) |
9f83cf0b | 7098 | maps[nmaps++] = map; |
24a40fbb | 7099 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
7ee32cda GM |
7100 | } |
7101 | ||
7102 | /* Add global keymap at the end. */ | |
7103 | maps[nmaps++] = current_global_map; | |
7104 | ||
7105 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7106 | key `tool-bar'. */ |
7ee32cda GM |
7107 | for (i = nmaps - 1; i >= 0; --i) |
7108 | if (!NILP (maps[i])) | |
7109 | { | |
7110 | Lisp_Object keymap; | |
db785038 | 7111 | |
341a09cf | 7112 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7113 | if (CONSP (keymap)) |
7ee32cda GM |
7114 | { |
7115 | Lisp_Object tail; | |
7116 | ||
7117 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 7118 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7119 | { |
7120 | Lisp_Object keydef = XCAR (tail); | |
7121 | if (CONSP (keydef)) | |
9ea173e8 | 7122 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7123 | } |
7124 | } | |
7125 | } | |
7126 | ||
7127 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7128 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7129 | return tool_bar_items_vector; | |
7ee32cda GM |
7130 | } |
7131 | ||
7132 | ||
7133 | /* Process the definition of KEY which is DEF. */ | |
7134 | ||
7135 | static void | |
9ea173e8 | 7136 | process_tool_bar_item (key, def) |
7ee32cda GM |
7137 | Lisp_Object key, def; |
7138 | { | |
7139 | int i; | |
7140 | extern Lisp_Object Qundefined; | |
7141 | struct gcpro gcpro1, gcpro2; | |
7142 | ||
9ea173e8 | 7143 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7144 | eval. */ |
7145 | GCPRO2 (key, def); | |
7146 | ||
7147 | if (EQ (def, Qundefined)) | |
7148 | { | |
7149 | /* If a map has an explicit `undefined' as definition, | |
7150 | discard any previously made item. */ | |
9ea173e8 | 7151 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7152 | { |
9ea173e8 | 7153 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 7154 | |
9ea173e8 | 7155 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7156 | { |
9ea173e8 GM |
7157 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7158 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7159 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7160 | * sizeof (Lisp_Object))); |
9ea173e8 | 7161 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7162 | break; |
7163 | } | |
7164 | } | |
7165 | } | |
9ea173e8 GM |
7166 | else if (parse_tool_bar_item (key, def)) |
7167 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7168 | more than one definition for the same key. */ |
9ea173e8 | 7169 | append_tool_bar_item (); |
7ee32cda GM |
7170 | |
7171 | UNGCPRO; | |
7172 | } | |
7173 | ||
7174 | ||
9ea173e8 GM |
7175 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7176 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7177 | invalid. |
7178 | ||
7179 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
7180 | ||
7181 | CAPTION is the caption of the item, If it's not a string, it is | |
7182 | evaluated to get a string. | |
7183 | ||
9ea173e8 | 7184 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7185 | as binding are currently ignored. |
7186 | ||
7187 | The following properties are recognized: | |
7188 | ||
7189 | - `:enable FORM'. | |
7190 | ||
9ea173e8 GM |
7191 | FORM is evaluated and specifies whether the tool bar item is |
7192 | enabled or disabled. | |
7ee32cda GM |
7193 | |
7194 | - `:visible FORM' | |
7195 | ||
9ea173e8 | 7196 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
7197 | |
7198 | - `:filter FUNCTION' | |
7199 | ||
7200 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7201 | result is stored as the new binding. | |
7202 | ||
7203 | - `:button (TYPE SELECTED)' | |
7204 | ||
7205 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7206 | and specifies whether the button is selected (pressed) or not. | |
7207 | ||
7208 | - `:image IMAGES' | |
7209 | ||
7210 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7211 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
7212 | |
7213 | - `:help HELP-STRING'. | |
7214 | ||
9ea173e8 | 7215 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7216 | |
7217 | static int | |
9ea173e8 | 7218 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7219 | Lisp_Object key, item; |
7220 | { | |
9ea173e8 GM |
7221 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7222 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7223 | |
7224 | Lisp_Object filter = Qnil; | |
7225 | Lisp_Object caption; | |
7226 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
7227 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
7228 | int i; | |
7ee32cda | 7229 | |
8c907a56 GM |
7230 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7231 | Rule out items that aren't lists, don't start with | |
7232 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7233 | list. */ |
7234 | if (!CONSP (item) | |
7235 | || !EQ (XCAR (item), Qmenu_item) | |
7236 | || (item = XCDR (item), | |
7237 | !CONSP (item))) | |
7238 | return 0; | |
7239 | ||
9ea173e8 | 7240 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7241 | defaults. */ |
9ea173e8 | 7242 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7243 | { |
9ea173e8 | 7244 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7245 | PROP (i) = Qnil; |
7246 | } | |
7247 | else | |
9ea173e8 GM |
7248 | tool_bar_item_properties |
7249 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
7250 | |
7251 | /* Set defaults. */ | |
9ea173e8 GM |
7252 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7253 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
7254 | |
7255 | /* Get the caption of the item. If the caption is not a string, | |
7256 | evaluate it to get a string. If we don't get a string, skip this | |
7257 | item. */ | |
7258 | caption = XCAR (item); | |
7259 | if (!STRINGP (caption)) | |
7260 | { | |
7261 | caption = menu_item_eval_property (caption); | |
7262 | if (!STRINGP (caption)) | |
7263 | return 0; | |
7264 | } | |
9ea173e8 | 7265 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7266 | |
7267 | /* Give up if rest following the caption is not a list. */ | |
7268 | item = XCDR (item); | |
7269 | if (!CONSP (item)) | |
7270 | return 0; | |
7271 | ||
7272 | /* Store the binding. */ | |
9ea173e8 | 7273 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7274 | item = XCDR (item); |
7275 | ||
8c907a56 GM |
7276 | /* Ignore cached key binding, if any. */ |
7277 | if (CONSP (item) && CONSP (XCAR (item))) | |
7278 | item = XCDR (item); | |
7279 | ||
7ee32cda GM |
7280 | /* Process the rest of the properties. */ |
7281 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7282 | { | |
7283 | Lisp_Object key, value; | |
7284 | ||
7285 | key = XCAR (item); | |
7286 | value = XCAR (XCDR (item)); | |
7287 | ||
7288 | if (EQ (key, QCenable)) | |
7289 | /* `:enable FORM'. */ | |
9ea173e8 | 7290 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7291 | else if (EQ (key, QCvisible)) |
7292 | { | |
7293 | /* `:visible FORM'. If got a visible property and that | |
7294 | evaluates to nil then ignore this item. */ | |
7295 | if (NILP (menu_item_eval_property (value))) | |
7296 | return 0; | |
7297 | } | |
7298 | else if (EQ (key, QChelp)) | |
7299 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7300 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7301 | else if (EQ (key, QCfilter)) |
7302 | /* ':filter FORM'. */ | |
7303 | filter = value; | |
7304 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7305 | { | |
7306 | /* `:button (TYPE . SELECTED)'. */ | |
7307 | Lisp_Object type, selected; | |
7308 | ||
7309 | type = XCAR (value); | |
7310 | selected = XCDR (value); | |
7311 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7312 | { | |
9ea173e8 GM |
7313 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7314 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7315 | } |
7316 | } | |
7317 | else if (EQ (key, QCimage) | |
7318 | && (CONSP (value) | |
7319 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7320 | /* Value is either a single image specification or a vector | |
7321 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 7322 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7323 | } |
7324 | ||
7325 | /* If got a filter apply it on binding. */ | |
7326 | if (!NILP (filter)) | |
9ea173e8 | 7327 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7328 | = menu_item_eval_property (list2 (filter, |
7329 | list2 (Qquote, | |
9ea173e8 | 7330 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7331 | |
7332 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7333 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7334 | return 0; |
7335 | ||
7336 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7337 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7338 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7339 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
7340 | |
7341 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
7342 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7343 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7344 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7345 | |
7346 | return 1; | |
7347 | ||
7348 | #undef PROP | |
7349 | } | |
7350 | ||
7351 | ||
9ea173e8 GM |
7352 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7353 | that can be reused. */ | |
7ee32cda GM |
7354 | |
7355 | static void | |
9ea173e8 | 7356 | init_tool_bar_items (reuse) |
7ee32cda GM |
7357 | Lisp_Object reuse; |
7358 | { | |
7359 | if (VECTORP (reuse)) | |
9ea173e8 | 7360 | tool_bar_items_vector = reuse; |
7ee32cda | 7361 | else |
9ea173e8 GM |
7362 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7363 | ntool_bar_items = 0; | |
7ee32cda GM |
7364 | } |
7365 | ||
7366 | ||
9ea173e8 GM |
7367 | /* Append parsed tool bar item properties from |
7368 | tool_bar_item_properties */ | |
7ee32cda GM |
7369 | |
7370 | static void | |
9ea173e8 | 7371 | append_tool_bar_item () |
7ee32cda GM |
7372 | { |
7373 | Lisp_Object *to, *from; | |
7374 | ||
9ea173e8 GM |
7375 | /* Enlarge tool_bar_items_vector if necessary. */ |
7376 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7377 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7378 | { |
7379 | Lisp_Object new_vector; | |
9ea173e8 | 7380 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7381 | |
7382 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7383 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7384 | XVECTOR (new_vector)->contents, |
7385 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7386 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7387 | } |
7388 | ||
9ea173e8 GM |
7389 | /* Append entries from tool_bar_item_properties to the end of |
7390 | tool_bar_items_vector. */ | |
7391 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7392 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7393 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7394 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7395 | } |
7396 | ||
7397 | ||
7398 | ||
7399 | ||
e8886a1d | 7400 | \f |
dcc408a0 RS |
7401 | /* Read a character using menus based on maps in the array MAPS. |
7402 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7403 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7404 | |
7405 | PREV_EVENT is the previous input event, or nil if we are reading | |
7406 | the first event of a key sequence. | |
7407 | ||
83d68044 | 7408 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7409 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7410 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7411 | |
7412 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7413 | and the strings associated with various map elements. |
8150596a RS |
7414 | |
7415 | This can be done with X menus or with menus put in the minibuf. | |
7416 | These are done in different ways, depending on how the input will be read. | |
7417 | Menus using X are done after auto-saving in read-char, getting the input | |
7418 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7419 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7420 | |
7617111f | 7421 | static Lisp_Object |
8150596a | 7422 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7423 | int nmaps; |
7424 | Lisp_Object *maps; | |
7425 | Lisp_Object prev_event; | |
7426 | int *used_mouse_menu; | |
284f4730 | 7427 | { |
7d6de002 RS |
7428 | int mapno; |
7429 | register Lisp_Object name; | |
7d6de002 | 7430 | |
6569cc8d JB |
7431 | if (used_mouse_menu) |
7432 | *used_mouse_menu = 0; | |
284f4730 JB |
7433 | |
7434 | /* Use local over global Menu maps */ | |
7435 | ||
7d6de002 RS |
7436 | if (! menu_prompting) |
7437 | return Qnil; | |
7438 | ||
03361bcc RS |
7439 | /* Optionally disregard all but the global map. */ |
7440 | if (inhibit_local_menu_bar_menus) | |
7441 | { | |
7442 | maps += (nmaps - 1); | |
7443 | nmaps = 1; | |
7444 | } | |
7445 | ||
7d6de002 RS |
7446 | /* Get the menu name from the first map that has one (a prompt string). */ |
7447 | for (mapno = 0; mapno < nmaps; mapno++) | |
7448 | { | |
7449 | name = map_prompt (maps[mapno]); | |
7450 | if (!NILP (name)) | |
7451 | break; | |
7452 | } | |
284f4730 | 7453 | |
7d6de002 | 7454 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 7455 | if (mapno >= nmaps) |
7d6de002 RS |
7456 | return Qnil; |
7457 | ||
1f5b1641 | 7458 | #ifdef HAVE_MENUS |
7d6de002 RS |
7459 | /* If we got to this point via a mouse click, |
7460 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7461 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7462 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7463 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7464 | { |
7465 | /* Display the menu and get the selection. */ | |
7466 | Lisp_Object *realmaps | |
7467 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7468 | Lisp_Object value; | |
7469 | int nmaps1 = 0; | |
7470 | ||
7471 | /* Use the maps that are not nil. */ | |
7472 | for (mapno = 0; mapno < nmaps; mapno++) | |
7473 | if (!NILP (maps[mapno])) | |
7474 | realmaps[nmaps1++] = maps[mapno]; | |
7475 | ||
7476 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7477 | if (CONSP (value)) |
7478 | { | |
68f297c5 RS |
7479 | Lisp_Object tem; |
7480 | ||
7539e11f | 7481 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7482 | |
68f297c5 RS |
7483 | /* If we got multiple events, unread all but |
7484 | the first. | |
7485 | There is no way to prevent those unread events | |
7486 | from showing up later in last_nonmenu_event. | |
7487 | So turn symbol and integer events into lists, | |
7488 | to indicate that they came from a mouse menu, | |
7489 | so that when present in last_nonmenu_event | |
7490 | they won't confuse things. */ | |
f4e05d97 | 7491 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7492 | { |
7539e11f KR |
7493 | record_menu_key (XCAR (tem)); |
7494 | if (SYMBOLP (XCAR (tem)) | |
7495 | || INTEGERP (XCAR (tem))) | |
f4e05d97 | 7496 | XCAR (tem) = Fcons (XCAR (tem), Qdisabled); |
8eb4d8ef | 7497 | } |
68f297c5 | 7498 | |
663258f2 JB |
7499 | /* If we got more than one event, put all but the first |
7500 | onto this list to be read later. | |
7501 | Return just the first event now. */ | |
24597608 | 7502 | Vunread_command_events |
7539e11f KR |
7503 | = nconc2 (XCDR (value), Vunread_command_events); |
7504 | value = XCAR (value); | |
663258f2 | 7505 | } |
1c90c381 | 7506 | else if (NILP (value)) |
dcc408a0 | 7507 | value = Qt; |
6569cc8d JB |
7508 | if (used_mouse_menu) |
7509 | *used_mouse_menu = 1; | |
7d6de002 RS |
7510 | return value; |
7511 | } | |
1f5b1641 | 7512 | #endif /* HAVE_MENUS */ |
8150596a RS |
7513 | return Qnil ; |
7514 | } | |
7515 | ||
68e0de82 RS |
7516 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7517 | We make this bigger when necessary, and never free it. */ | |
7518 | static char *read_char_minibuf_menu_text; | |
7519 | /* Size of that buffer. */ | |
7520 | static int read_char_minibuf_menu_width; | |
7521 | ||
8150596a | 7522 | static Lisp_Object |
24597608 | 7523 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7524 | int commandflag ; |
7525 | int nmaps; | |
7526 | Lisp_Object *maps; | |
7527 | { | |
7528 | int mapno; | |
7529 | register Lisp_Object name; | |
7530 | int nlength; | |
788f89eb | 7531 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 7532 | int idx = -1; |
9fdbfdf8 | 7533 | int nobindings = 1; |
8150596a | 7534 | Lisp_Object rest, vector; |
68e0de82 | 7535 | char *menu; |
8150596a | 7536 | |
8c907a56 GM |
7537 | vector = Qnil; |
7538 | ||
8150596a RS |
7539 | if (! menu_prompting) |
7540 | return Qnil; | |
7541 | ||
68e0de82 RS |
7542 | /* Make sure we have a big enough buffer for the menu text. */ |
7543 | if (read_char_minibuf_menu_text == 0) | |
7544 | { | |
7545 | read_char_minibuf_menu_width = width + 4; | |
7546 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7547 | } | |
7548 | else if (width + 4 > read_char_minibuf_menu_width) | |
7549 | { | |
7550 | read_char_minibuf_menu_width = width + 4; | |
7551 | read_char_minibuf_menu_text | |
7552 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7553 | } | |
7554 | menu = read_char_minibuf_menu_text; | |
7555 | ||
8150596a RS |
7556 | /* Get the menu name from the first map that has one (a prompt string). */ |
7557 | for (mapno = 0; mapno < nmaps; mapno++) | |
7558 | { | |
7559 | name = map_prompt (maps[mapno]); | |
7560 | if (!NILP (name)) | |
7561 | break; | |
7562 | } | |
7563 | ||
7564 | /* If we don't have any menus, just read a character normally. */ | |
7565 | if (mapno >= nmaps) | |
7566 | return Qnil; | |
284f4730 JB |
7567 | |
7568 | /* Prompt string always starts with map's prompt, and a space. */ | |
7569 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 7570 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 7571 | menu[nlength++] = ':'; |
284f4730 JB |
7572 | menu[nlength++] = ' '; |
7573 | menu[nlength] = 0; | |
7574 | ||
7d6de002 RS |
7575 | /* Start prompting at start of first map. */ |
7576 | mapno = 0; | |
7577 | rest = maps[mapno]; | |
284f4730 JB |
7578 | |
7579 | /* Present the documented bindings, a line at a time. */ | |
7580 | while (1) | |
7581 | { | |
7582 | int notfirst = 0; | |
7583 | int i = nlength; | |
7584 | Lisp_Object obj; | |
7585 | int ch; | |
8066f1a1 | 7586 | Lisp_Object orig_defn_macro; |
284f4730 | 7587 | |
284f4730 | 7588 | /* Loop over elements of map. */ |
7d6de002 | 7589 | while (i < width) |
284f4730 | 7590 | { |
fd3613d7 | 7591 | Lisp_Object elt; |
284f4730 | 7592 | |
7d6de002 RS |
7593 | /* If reached end of map, start at beginning of next map. */ |
7594 | if (NILP (rest)) | |
7595 | { | |
7596 | mapno++; | |
7597 | /* At end of last map, wrap around to first map if just starting, | |
7598 | or end this line if already have something on it. */ | |
7599 | if (mapno == nmaps) | |
284f4730 | 7600 | { |
8150596a | 7601 | mapno = 0; |
40932d1a | 7602 | if (notfirst || nobindings) break; |
284f4730 | 7603 | } |
7d6de002 | 7604 | rest = maps[mapno]; |
284f4730 | 7605 | } |
7d6de002 RS |
7606 | |
7607 | /* Look at the next element of the map. */ | |
7608 | if (idx >= 0) | |
7609 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 7610 | else |
7d6de002 RS |
7611 | elt = Fcar_safe (rest); |
7612 | ||
8c18cbfb | 7613 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7614 | { |
7d6de002 RS |
7615 | /* If we found a dense table in the keymap, |
7616 | advanced past it, but start scanning its contents. */ | |
7617 | rest = Fcdr_safe (rest); | |
7618 | vector = elt; | |
7619 | idx = 0; | |
284f4730 | 7620 | } |
7d6de002 RS |
7621 | else |
7622 | { | |
7623 | /* An ordinary element. */ | |
fd3613d7 | 7624 | Lisp_Object event, tem; |
0a2ea221 KH |
7625 | |
7626 | if (idx < 0) | |
7627 | { | |
fd3613d7 RS |
7628 | event = Fcar_safe (elt); /* alist */ |
7629 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7630 | } |
8150596a | 7631 | else |
7d6de002 | 7632 | { |
fd3613d7 | 7633 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7634 | } |
7635 | ||
7636 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7637 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7638 | { |
7639 | /* 1 if the char to type matches the string. */ | |
7640 | int char_matches; | |
7641 | Lisp_Object upcased_event, downcased_event; | |
8c907a56 | 7642 | Lisp_Object desc = Qnil; |
fd3613d7 RS |
7643 | Lisp_Object s |
7644 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7645 | |
7646 | upcased_event = Fupcase (event); | |
7647 | downcased_event = Fdowncase (event); | |
7648 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7649 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7650 | if (! char_matches) | |
efff6e49 | 7651 | desc = Fsingle_key_description (event, Qnil); |
0a2ea221 | 7652 | |
fd3613d7 RS |
7653 | tem |
7654 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7655 | if (!NILP (tem)) | |
7656 | /* Insert equivalent keybinding. */ | |
7657 | s = concat2 (s, tem); | |
7658 | ||
7659 | tem | |
7660 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7661 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7662 | { | |
7663 | /* Insert button prefix. */ | |
7664 | Lisp_Object selected | |
7665 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7666 | if (EQ (tem, QCradio)) | |
7667 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7668 | else | |
7669 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7670 | s = concat2 (tem, s); | |
7671 | } | |
7672 | ||
7673 | ||
0a2ea221 KH |
7674 | /* If we have room for the prompt string, add it to this line. |
7675 | If this is the first on the line, always add it. */ | |
7676 | if ((XSTRING (s)->size + i + 2 | |
7677 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7678 | < width | |
7679 | || !notfirst) | |
7680 | { | |
7681 | int thiswidth; | |
7682 | ||
7683 | /* Punctuate between strings. */ | |
7684 | if (notfirst) | |
7685 | { | |
7686 | strcpy (menu + i, ", "); | |
7687 | i += 2; | |
7688 | } | |
7689 | notfirst = 1; | |
7690 | nobindings = 0 ; | |
284f4730 | 7691 | |
0a2ea221 KH |
7692 | /* If the char to type doesn't match the string's |
7693 | first char, explicitly show what char to type. */ | |
7694 | if (! char_matches) | |
7695 | { | |
7696 | /* Add as much of string as fits. */ | |
7697 | thiswidth = XSTRING (desc)->size; | |
7698 | if (thiswidth + i > width) | |
7699 | thiswidth = width - i; | |
7700 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7701 | i += thiswidth; | |
7702 | strcpy (menu + i, " = "); | |
7703 | i += 3; | |
7704 | } | |
7705 | ||
7706 | /* Add as much of string as fits. */ | |
7707 | thiswidth = XSTRING (s)->size; | |
7708 | if (thiswidth + i > width) | |
7709 | thiswidth = width - i; | |
7710 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7711 | i += thiswidth; | |
7712 | menu[i] = 0; | |
7713 | } | |
7714 | else | |
7d6de002 | 7715 | { |
0a2ea221 KH |
7716 | /* If this element does not fit, end the line now, |
7717 | and save the element for the next line. */ | |
7718 | strcpy (menu + i, "..."); | |
7719 | break; | |
7d6de002 | 7720 | } |
7d6de002 RS |
7721 | } |
7722 | ||
7723 | /* Move past this element. */ | |
8150596a | 7724 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7725 | /* Handle reaching end of dense table. */ |
7726 | idx = -1; | |
7727 | if (idx >= 0) | |
7728 | idx++; | |
7729 | else | |
7730 | rest = Fcdr_safe (rest); | |
7731 | } | |
284f4730 JB |
7732 | } |
7733 | ||
7734 | /* Prompt with that and read response. */ | |
301738ed RS |
7735 | message2_nolog (menu, strlen (menu), |
7736 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7737 | |
df0f2ba1 | 7738 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7739 | is pressed. Help characters are not recorded because menu prompting |
7740 | is not used on replay. | |
7741 | */ | |
c5fdd383 KH |
7742 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7743 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 | 7744 | do |
7735786b | 7745 | obj = read_char (commandflag, 0, 0, Qt, 0); |
8c18cbfb | 7746 | while (BUFFERP (obj)); |
c5fdd383 | 7747 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7748 | |
8c18cbfb | 7749 | if (!INTEGERP (obj)) |
284f4730 JB |
7750 | return obj; |
7751 | else | |
7752 | ch = XINT (obj); | |
7753 | ||
f4255cd1 | 7754 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7755 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7756 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7757 | { |
c5fdd383 | 7758 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7759 | store_kbd_macro_char (obj); |
8150596a RS |
7760 | return obj; |
7761 | } | |
7762 | /* Help char - go round again */ | |
284f4730 JB |
7763 | } |
7764 | } | |
284f4730 JB |
7765 | \f |
7766 | /* Reading key sequences. */ | |
7767 | ||
7768 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7769 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7770 | keymap, or nil otherwise. Return the index of the first keymap in | |
7771 | which KEY has any binding, or NMAPS if no map has a binding. | |
7772 | ||
7773 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7774 | followed by the corresponding non-meta character. Keymaps in | |
7775 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7776 | NEXT. | |
7777 | ||
88cb0656 JB |
7778 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7779 | unmodified. | |
7780 | ||
569871d2 | 7781 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7782 | |
7783 | static int | |
4e50f26a | 7784 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7785 | Lisp_Object key; |
7786 | Lisp_Object *current, *defs, *next; | |
7787 | int nmaps; | |
7788 | { | |
7789 | int i, first_binding; | |
569871d2 | 7790 | int did_meta = 0; |
284f4730 | 7791 | |
284f4730 JB |
7792 | first_binding = nmaps; |
7793 | for (i = nmaps - 1; i >= 0; i--) | |
7794 | { | |
7795 | if (! NILP (current[i])) | |
7796 | { | |
569871d2 RS |
7797 | Lisp_Object map; |
7798 | if (did_meta) | |
7799 | map = defs[i]; | |
7800 | else | |
7801 | map = current[i]; | |
7802 | ||
db785038 | 7803 | defs[i] = access_keymap (map, key, 1, 0, 1); |
284f4730 JB |
7804 | if (! NILP (defs[i])) |
7805 | first_binding = i; | |
7806 | } | |
7807 | else | |
7808 | defs[i] = Qnil; | |
7809 | } | |
7810 | ||
284f4730 | 7811 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7812 | if (first_binding < nmaps) |
7813 | for (i = 0; i < nmaps; i++) | |
02067692 | 7814 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
7815 | |
7816 | return first_binding; | |
7817 | } | |
7818 | ||
df0f2ba1 | 7819 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7820 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7821 | Prompt with PROMPT. | |
284f4730 | 7822 | Return the length of the key sequence stored. |
dcc408a0 | 7823 | Return -1 if the user rejected a command menu. |
284f4730 | 7824 | |
f4255cd1 JB |
7825 | Echo starting immediately unless `prompt' is 0. |
7826 | ||
7827 | Where a key sequence ends depends on the currently active keymaps. | |
7828 | These include any minor mode keymaps active in the current buffer, | |
7829 | the current buffer's local map, and the global map. | |
7830 | ||
7831 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7832 | to see if some trailing subsequence might be the beginning of a | |
7833 | function key's sequence. If so, we try to read the whole function | |
7834 | key, and substitute its symbolic name into the key sequence. | |
7835 | ||
fbcd35bd JB |
7836 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7837 | `double-' events into similar click events, if that would make them | |
7838 | bound. We try to turn `triple-' events first into `double-' events, | |
7839 | then into clicks. | |
f4255cd1 JB |
7840 | |
7841 | If we get a mouse click in a mode line, vertical divider, or other | |
7842 | non-text area, we treat the click as if it were prefixed by the | |
7843 | symbol denoting that area - `mode-line', `vertical-line', or | |
7844 | whatever. | |
7845 | ||
7846 | If the sequence starts with a mouse click, we read the key sequence | |
7847 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7848 | |
f4255cd1 JB |
7849 | If the user switches frames in the midst of a key sequence, we put |
7850 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7851 | read_char will return it. |
7852 | ||
7853 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7854 | from the selected window's buffer. */ | |
48e416d4 | 7855 | |
284f4730 | 7856 | static int |
ce98e608 | 7857 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7858 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7859 | Lisp_Object *keybuf; |
7860 | int bufsize; | |
84d91fda | 7861 | Lisp_Object prompt; |
309b0fc8 | 7862 | int dont_downcase_last; |
ce98e608 | 7863 | int can_return_switch_frame; |
f571ae0d | 7864 | int fix_current_buffer; |
284f4730 | 7865 | { |
db14cfc5 | 7866 | volatile Lisp_Object from_string; |
8c907a56 | 7867 | volatile int count = specpdl_ptr - specpdl; |
f4255cd1 | 7868 | |
284f4730 | 7869 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 7870 | volatile int t; |
284f4730 | 7871 | |
284f4730 JB |
7872 | /* The length of the echo buffer when we started reading, and |
7873 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
7874 | volatile int echo_start; |
7875 | volatile int keys_start; | |
284f4730 JB |
7876 | |
7877 | /* The number of keymaps we're scanning right now, and the number of | |
7878 | keymaps we have allocated space for. */ | |
8c907a56 GM |
7879 | volatile int nmaps; |
7880 | volatile int nmaps_allocated = 0; | |
284f4730 | 7881 | |
284f4730 JB |
7882 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7883 | the current keymaps. */ | |
8c907a56 | 7884 | Lisp_Object *volatile defs = NULL; |
284f4730 | 7885 | |
f4255cd1 JB |
7886 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7887 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 7888 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 7889 | |
e0dff5f6 | 7890 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 7891 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 7892 | |
30690496 DL |
7893 | /* The map from the `keymap' property to start out with at start of |
7894 | key sequence. */ | |
8c907a56 | 7895 | volatile Lisp_Object orig_keymap; |
30690496 | 7896 | |
e0dff5f6 RS |
7897 | /* 1 if we have already considered switching to the local-map property |
7898 | of the place where a mouse click occurred. */ | |
8c907a56 | 7899 | volatile int localized_local_map = 0; |
e0dff5f6 | 7900 | |
f4255cd1 JB |
7901 | /* The index in defs[] of the first keymap that has a binding for |
7902 | this key sequence. In other words, the lowest i such that | |
7903 | defs[i] is non-nil. */ | |
8c907a56 | 7904 | volatile int first_binding; |
284f4730 | 7905 | |
f4255cd1 | 7906 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7907 | input key. |
7908 | ||
7909 | We use this to recover after recognizing a function key. Once we | |
7910 | realize that a suffix of the current key sequence is actually a | |
7911 | function key's escape sequence, we replace the suffix with the | |
7912 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7913 | contains a new and different key sequence, so the echo area, |
7914 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7915 | this situation, we set mock_input to t, set t to 0, and jump to | |
7916 | restart_sequence; the loop will read keys from keybuf up until | |
7917 | mock_input, thus rebuilding the state; and then it will resume | |
7918 | reading characters from the keyboard. */ | |
8c907a56 | 7919 | volatile int mock_input = 0; |
284f4730 | 7920 | |
253598e4 | 7921 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7922 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7923 | and fkey_map is its binding. | |
253598e4 | 7924 | |
f4255cd1 JB |
7925 | These might be > t, indicating that all function key scanning |
7926 | should hold off until t reaches them. We do this when we've just | |
7927 | recognized a function key, to avoid searching for the function | |
7928 | key's again in Vfunction_key_map. */ | |
8c907a56 GM |
7929 | volatile int fkey_start = 0, fkey_end = 0; |
7930 | volatile Lisp_Object fkey_map; | |
284f4730 | 7931 | |
a612e298 | 7932 | /* Likewise, for key_translation_map. */ |
8c907a56 GM |
7933 | volatile int keytran_start = 0, keytran_end = 0; |
7934 | volatile Lisp_Object keytran_map; | |
a612e298 | 7935 | |
cd21b839 JB |
7936 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7937 | we put it off for later. While we're reading, we keep the event here. */ | |
8c907a56 | 7938 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 7939 | |
51763820 BF |
7940 | /* See the comment below... */ |
7941 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7942 | Lisp_Object first_event; |
51763820 | 7943 | #endif |
4efda7dd | 7944 | |
8c907a56 GM |
7945 | volatile Lisp_Object original_uppercase; |
7946 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 7947 | |
bc536d84 | 7948 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7949 | int dummyflag = 0; |
bc536d84 | 7950 | |
3b9189f8 RS |
7951 | struct buffer *starting_buffer; |
7952 | ||
e9bf89a0 RS |
7953 | /* Nonzero if we seem to have got the beginning of a binding |
7954 | in function_key_map. */ | |
8c907a56 GM |
7955 | volatile int function_key_possible = 0; |
7956 | volatile int key_translation_possible = 0; | |
e9bf89a0 | 7957 | |
2dc00208 GM |
7958 | /* List of events for which a fake prefix key has been generated. */ |
7959 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
7960 | ||
3fe8e9a2 RS |
7961 | /* Save the status of key translation before each step, |
7962 | so that we can restore this after downcasing. */ | |
7963 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7964 | int prev_fkey_start; |
7965 | int prev_fkey_end; | |
3fe8e9a2 RS |
7966 | |
7967 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7968 | int prev_keytran_start; |
7969 | int prev_keytran_end; | |
3fe8e9a2 | 7970 | |
03cee6ae | 7971 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 7972 | int junk; |
03cee6ae | 7973 | #endif |
4efda7dd | 7974 | |
2dc00208 GM |
7975 | struct gcpro gcpro1; |
7976 | ||
7977 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
7978 | raw_keybuf_count = 0; |
7979 | ||
4efda7dd RS |
7980 | last_nonmenu_event = Qnil; |
7981 | ||
7982 | delayed_switch_frame = Qnil; | |
7983 | fkey_map = Vfunction_key_map; | |
a612e298 | 7984 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7985 | |
a612e298 | 7986 | /* If there is no function-key-map, turn off function key scanning. */ |
02067692 | 7987 | if (!KEYMAPP (Vfunction_key_map)) |
f4255cd1 JB |
7988 | fkey_start = fkey_end = bufsize + 1; |
7989 | ||
a612e298 | 7990 | /* If there is no key-translation-map, turn off scanning. */ |
02067692 | 7991 | if (!KEYMAPP (Vkey_translation_map)) |
a612e298 RS |
7992 | keytran_start = keytran_end = bufsize + 1; |
7993 | ||
284f4730 JB |
7994 | if (INTERACTIVE) |
7995 | { | |
84d91fda | 7996 | if (!NILP (prompt)) |
a4ef85ee | 7997 | echo_prompt (prompt); |
f2647d04 DL |
7998 | else if (cursor_in_echo_area |
7999 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8000 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8001 | /* This doesn't put in a dash if the echo buffer is empty, so |
8002 | you don't always see a dash hanging out in the minibuffer. */ | |
8003 | echo_dash (); | |
284f4730 JB |
8004 | } |
8005 | ||
f4255cd1 JB |
8006 | /* Record the initial state of the echo area and this_command_keys; |
8007 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8008 | if (INTERACTIVE) |
df0f2ba1 | 8009 | echo_start = echo_length (); |
f4255cd1 | 8010 | keys_start = this_command_key_count; |
6321824f | 8011 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8012 | |
51763820 BF |
8013 | #if defined (GOBBLE_FIRST_EVENT) |
8014 | /* This doesn't quite work, because some of the things that read_char | |
8015 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8016 | this work right. */ |
51763820 | 8017 | |
4efda7dd RS |
8018 | /* Read the first char of the sequence specially, before setting |
8019 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8020 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8021 | &junk); |
51763820 | 8022 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8023 | |
24a40fbb GM |
8024 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8025 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8026 | from_string = Qnil; |
e0dff5f6 | 8027 | |
7b4aedb9 JB |
8028 | /* We jump here when the key sequence has been thoroughly changed, and |
8029 | we need to rescan it starting from the beginning. When we jump here, | |
8030 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8031 | replay_sequence: |
7b4aedb9 | 8032 | |
3b9189f8 | 8033 | starting_buffer = current_buffer; |
e9bf89a0 | 8034 | function_key_possible = 0; |
00a78037 | 8035 | key_translation_possible = 0; |
3b9189f8 | 8036 | |
f4255cd1 | 8037 | /* Build our list of keymaps. |
07d2b8de JB |
8038 | If we recognize a function key and replace its escape sequence in |
8039 | keybuf with its symbol, or if the sequence starts with a mouse | |
8040 | click and we need to switch buffers, we jump back here to rebuild | |
8041 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 8042 | { |
284f4730 JB |
8043 | Lisp_Object *maps; |
8044 | ||
217258d5 KH |
8045 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8046 | || !NILP (Voverriding_local_map)) | |
284f4730 | 8047 | { |
217258d5 | 8048 | if (3 > nmaps_allocated) |
9dd3131c | 8049 | { |
217258d5 KH |
8050 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
8051 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8052 | nmaps_allocated = 3; | |
9dd3131c | 8053 | } |
217258d5 KH |
8054 | nmaps = 0; |
8055 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8056 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8057 | if (!NILP (Voverriding_local_map)) | |
8058 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 8059 | } |
9dd3131c RS |
8060 | else |
8061 | { | |
30690496 | 8062 | int extra_maps = 2; |
217258d5 | 8063 | nmaps = current_minor_maps (0, &maps); |
30690496 DL |
8064 | if (!NILP (orig_keymap)) |
8065 | extra_maps = 3; | |
8066 | if (nmaps + extra_maps > nmaps_allocated) | |
9dd3131c | 8067 | { |
30690496 DL |
8068 | submaps = (Lisp_Object *) alloca ((nmaps+extra_maps) |
8069 | * sizeof (submaps[0])); | |
8070 | defs = (Lisp_Object *) alloca ((nmaps+extra_maps) | |
8071 | * sizeof (defs[0])); | |
8072 | nmaps_allocated = nmaps + extra_maps; | |
9dd3131c | 8073 | } |
8c907a56 | 8074 | bcopy (maps, (void *) submaps, nmaps * sizeof (submaps[0])); |
30690496 DL |
8075 | if (!NILP (orig_keymap)) |
8076 | submaps[nmaps++] = orig_keymap; | |
217258d5 | 8077 | submaps[nmaps++] = orig_local_map; |
9dd3131c | 8078 | } |
217258d5 | 8079 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
8080 | } |
8081 | ||
8082 | /* Find an accurate initial value for first_binding. */ | |
8083 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8084 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8085 | break; |
8086 | ||
3b9189f8 | 8087 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8088 | t = 0; |
8089 | ||
8090 | /* These are no-ops the first time through, but if we restart, they | |
8091 | revert the echo area and this_command_keys to their original state. */ | |
8092 | this_command_key_count = keys_start; | |
df0f2ba1 | 8093 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8094 | echo_truncate (echo_start); |
8095 | ||
cca310da JB |
8096 | /* If the best binding for the current key sequence is a keymap, or |
8097 | we may be looking at a function key's escape sequence, keep on | |
8098 | reading. */ | |
253598e4 | 8099 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
8100 | || (first_binding >= nmaps |
8101 | && fkey_start < t | |
8102 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 8103 | && mock_input <= fkey_start) |
0d882d52 KH |
8104 | || (first_binding >= nmaps |
8105 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
8106 | /* Don't return in the middle of a possible function key sequence, |
8107 | if the only bindings we found were via case conversion. | |
8108 | Thus, if ESC O a has a function-key-map translation | |
8109 | and ESC o has a binding, don't return after ESC O, | |
8110 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 8111 | ) |
284f4730 JB |
8112 | { |
8113 | Lisp_Object key; | |
7d6de002 | 8114 | int used_mouse_menu = 0; |
284f4730 | 8115 | |
7b4aedb9 JB |
8116 | /* Where the last real key started. If we need to throw away a |
8117 | key that has expanded into more than one element of keybuf | |
8118 | (say, a mouse click on the mode line which is being treated | |
8119 | as [mode-line (mouse-...)], then we backtrack to this point | |
8120 | of keybuf. */ | |
8c907a56 | 8121 | volatile int last_real_key_start; |
7b4aedb9 | 8122 | |
0a7f1fc0 JB |
8123 | /* These variables are analogous to echo_start and keys_start; |
8124 | while those allow us to restart the entire key sequence, | |
8125 | echo_local_start and keys_local_start allow us to throw away | |
8126 | just one key. */ | |
8c907a56 | 8127 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8128 | |
284f4730 | 8129 | if (t >= bufsize) |
3fe8e9a2 | 8130 | error ("Key sequence too long"); |
284f4730 | 8131 | |
f4255cd1 JB |
8132 | if (INTERACTIVE) |
8133 | echo_local_start = echo_length (); | |
8134 | keys_local_start = this_command_key_count; | |
8135 | local_first_binding = first_binding; | |
df0f2ba1 | 8136 | |
f4255cd1 | 8137 | replay_key: |
0a7f1fc0 | 8138 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8139 | jumped back up to replay_key; in that case, these restore the |
8140 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8141 | loop. */ |
40932d1a | 8142 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8143 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8144 | this_command_key_count = keys_local_start; |
8145 | first_binding = local_first_binding; | |
8146 | ||
7e85b935 RS |
8147 | /* By default, assume each event is "real". */ |
8148 | last_real_key_start = t; | |
8149 | ||
f4255cd1 | 8150 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8151 | if (t < mock_input) |
8152 | { | |
8153 | key = keybuf[t]; | |
8154 | add_command_key (key); | |
f2647d04 DL |
8155 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8156 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8157 | echo_char (key); |
284f4730 | 8158 | } |
253598e4 JB |
8159 | |
8160 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8161 | else |
8162 | { | |
beecf6a1 | 8163 | { |
c5fdd383 KH |
8164 | #ifdef MULTI_KBOARD |
8165 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8166 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8167 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8168 | { |
5798cf15 KH |
8169 | if (!NILP (delayed_switch_frame)) |
8170 | { | |
c5fdd383 | 8171 | interrupted_kboard->kbd_queue |
5798cf15 | 8172 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8173 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8174 | delayed_switch_frame = Qnil; |
8175 | } | |
beecf6a1 | 8176 | while (t > 0) |
c5fdd383 KH |
8177 | interrupted_kboard->kbd_queue |
8178 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8179 | |
8180 | /* If the side queue is non-empty, ensure it begins with a | |
8181 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8182 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8183 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8184 | !(EVENT_HAS_PARAMETERS (key) |
8185 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8186 | Qswitch_frame)))) | |
df0f2ba1 KH |
8187 | { |
8188 | Lisp_Object frame; | |
8189 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8190 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8191 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8192 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8193 | } |
beecf6a1 | 8194 | mock_input = 0; |
24a40fbb GM |
8195 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8196 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8197 | goto replay_sequence; |
8198 | } | |
bded54dd | 8199 | #endif |
8c907a56 GM |
8200 | key = read_char (NILP (prompt), nmaps, |
8201 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8202 | &used_mouse_menu); |
8203 | } | |
284f4730 | 8204 | |
dcc408a0 RS |
8205 | /* read_char returns t when it shows a menu and the user rejects it. |
8206 | Just return -1. */ | |
8207 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8208 | { |
8209 | unbind_to (count, Qnil); | |
2dc00208 | 8210 | UNGCPRO; |
7d18f9ae RS |
8211 | return -1; |
8212 | } | |
dcc408a0 | 8213 | |
f4255cd1 | 8214 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8215 | Emacs 18 handles this by returning immediately with a |
8216 | zero, so that's what we'll do. */ | |
8c18cbfb | 8217 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8218 | { |
f4255cd1 | 8219 | t = 0; |
bc536d84 RS |
8220 | /* The Microsoft C compiler can't handle the goto that |
8221 | would go here. */ | |
309b0fc8 | 8222 | dummyflag = 1; |
bc536d84 | 8223 | break; |
cd21b839 | 8224 | } |
df0f2ba1 | 8225 | |
3cb81011 KH |
8226 | /* If the current buffer has been changed from under us, the |
8227 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8228 | if (BUFFERP (key)) |
3cb81011 KH |
8229 | { |
8230 | mock_input = t; | |
f571ae0d RS |
8231 | /* Reset the current buffer from the selected window |
8232 | in case something changed the former and not the latter. | |
8233 | This is to be more consistent with the behavior | |
8234 | of the command_loop_1. */ | |
8235 | if (fix_current_buffer) | |
a94a4335 | 8236 | { |
788f89eb | 8237 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8238 | Fkill_emacs (Qnil); |
8239 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8240 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8241 | } | |
f571ae0d | 8242 | |
24a40fbb GM |
8243 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8244 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8245 | goto replay_sequence; |
8246 | } | |
8247 | ||
3b9189f8 RS |
8248 | /* If we have a quit that was typed in another frame, and |
8249 | quit_throw_to_read_char switched buffers, | |
8250 | replay to get the right keymap. */ | |
f4e05d97 GM |
8251 | if (INTEGERP (key) |
8252 | && XINT (key) == quit_char | |
8253 | && current_buffer != starting_buffer) | |
3b9189f8 | 8254 | { |
7d18f9ae RS |
8255 | GROW_RAW_KEYBUF; |
8256 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8257 | keybuf[t++] = key; |
8258 | mock_input = t; | |
8259 | Vquit_flag = Qnil; | |
24a40fbb GM |
8260 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8261 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8262 | goto replay_sequence; |
8263 | } | |
3cb81011 | 8264 | |
284f4730 | 8265 | Vquit_flag = Qnil; |
7d18f9ae RS |
8266 | |
8267 | if (EVENT_HAS_PARAMETERS (key) | |
8268 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
8269 | { | |
8270 | /* If we're at the beginning of a key sequence, and the caller | |
8271 | says it's okay, go ahead and return this event. If we're | |
8272 | in the midst of a key sequence, delay it until the end. */ | |
8273 | if (t > 0 || !can_return_switch_frame) | |
8274 | { | |
8275 | delayed_switch_frame = key; | |
8276 | goto replay_key; | |
8277 | } | |
8278 | } | |
8279 | ||
8280 | GROW_RAW_KEYBUF; | |
8281 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8282 | } |
284f4730 | 8283 | |
df0f2ba1 | 8284 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8285 | in their CHAR-ADDRESS field. For example, a click on |
8286 | the mode line is prefixed by the symbol `mode-line'. | |
8287 | ||
8288 | Furthermore, key sequences beginning with mouse clicks | |
8289 | are read using the keymaps of the buffer clicked on, not | |
8290 | the current buffer. So we may have to switch the buffer | |
8291 | here. | |
8292 | ||
8293 | When we turn one event into two events, we must make sure | |
8294 | that neither of the two looks like the original--so that, | |
8295 | if we replay the events, they won't be expanded again. | |
8296 | If not for this, such reexpansion could happen either here | |
8297 | or when user programs play with this-command-keys. */ | |
8298 | if (EVENT_HAS_PARAMETERS (key)) | |
8299 | { | |
9b8eb840 | 8300 | Lisp_Object kind; |
cca310da | 8301 | |
9b8eb840 | 8302 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8303 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8304 | { |
9b8eb840 | 8305 | Lisp_Object window, posn; |
f4255cd1 | 8306 | |
9b8eb840 KH |
8307 | window = POSN_WINDOW (EVENT_START (key)); |
8308 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8309 | |
2cf066c3 GM |
8310 | if (CONSP (posn) |
8311 | || (!NILP (fake_prefixed_keys) | |
8312 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8313 | { |
2cf066c3 GM |
8314 | /* We're looking a second time at an event for which |
8315 | we generated a fake prefix key. Set | |
7e85b935 RS |
8316 | last_real_key_start appropriately. */ |
8317 | if (t > 0) | |
8318 | last_real_key_start = t - 1; | |
cd21b839 | 8319 | } |
7e85b935 RS |
8320 | |
8321 | /* Key sequences beginning with mouse clicks are | |
8322 | read using the keymaps in the buffer clicked on, | |
8323 | not the current buffer. If we're at the | |
8324 | beginning of a key sequence, switch buffers. */ | |
8325 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8326 | && WINDOWP (window) |
8327 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8328 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8329 | { |
7d18f9ae | 8330 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8331 | keybuf[t] = key; |
8332 | mock_input = t + 1; | |
8333 | ||
8334 | /* Arrange to go back to the original buffer once we're | |
8335 | done reading the key sequence. Note that we can't | |
8336 | use save_excursion_{save,restore} here, because they | |
8337 | save point as well as the current buffer; we don't | |
8338 | want to save point, because redisplay may change it, | |
8339 | to accommodate a Fset_window_start or something. We | |
8340 | don't want to do this at the top of the function, | |
8341 | because we may get input from a subprocess which | |
8342 | wants to change the selected window and stuff (say, | |
8343 | emacsclient). */ | |
8344 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8345 | ||
788f89eb | 8346 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8347 | Fkill_emacs (Qnil); |
24a40fbb | 8348 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8349 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8350 | Qlocal_map); |
8351 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8352 | goto replay_sequence; |
0a7f1fc0 | 8353 | } |
7ee32cda | 8354 | |
e0dff5f6 RS |
8355 | /* For a mouse click, get the local text-property keymap |
8356 | of the place clicked on, rather than point. */ | |
7ee32cda | 8357 | if (last_real_key_start == 0 |
7539e11f | 8358 | && CONSP (XCDR (key)) |
e0dff5f6 | 8359 | && ! localized_local_map) |
5ec75a55 | 8360 | { |
e0dff5f6 RS |
8361 | Lisp_Object map_here, start, pos; |
8362 | ||
8363 | localized_local_map = 1; | |
8364 | start = EVENT_START (key); | |
7ee32cda | 8365 | |
7539e11f | 8366 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8367 | { |
8368 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8369 | if (INTEGERP (pos) |
8370 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8371 | { |
30690496 | 8372 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8373 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8374 | if (!EQ (map_here, orig_local_map)) |
8375 | { | |
8376 | orig_local_map = map_here; | |
8377 | keybuf[t] = key; | |
8378 | mock_input = t + 1; | |
5ec75a55 | 8379 | |
30690496 DL |
8380 | goto replay_sequence; |
8381 | } | |
8382 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8383 | current_buffer, Qkeymap); |
30690496 DL |
8384 | if (!EQ (map_here, orig_keymap)) |
8385 | { | |
8386 | orig_keymap = map_here; | |
8387 | keybuf[t] = key; | |
8388 | mock_input = t + 1; | |
8389 | ||
e0dff5f6 RS |
8390 | goto replay_sequence; |
8391 | } | |
8392 | } | |
8393 | } | |
8394 | } | |
8395 | ||
8396 | /* Expand mode-line and scroll-bar events into two events: | |
8397 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8398 | if (SYMBOLP (posn) |
8399 | && (NILP (fake_prefixed_keys) | |
8400 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8401 | { |
7e85b935 | 8402 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8403 | error ("Key sequence too long"); |
7ee32cda | 8404 | |
2dc00208 GM |
8405 | keybuf[t] = posn; |
8406 | keybuf[t + 1] = key; | |
8407 | mock_input = t + 2; | |
8408 | ||
8409 | /* Record that a fake prefix key has been generated | |
8410 | for KEY. Don't modify the event; this would | |
8411 | prevent proper action when the event is pushed | |
8412 | back tino unread-command-events. */ | |
8413 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); | |
7ee32cda GM |
8414 | |
8415 | /* If on a mode line string with a local keymap, | |
8416 | reconsider the key sequence with that keymap. */ | |
8417 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8418 | { | |
30690496 | 8419 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8420 | |
8421 | string = POSN_STRING (EVENT_START (key)); | |
8422 | pos = XCDR (string); | |
8423 | string = XCAR (string); | |
52e386c2 KR |
8424 | if (XINT (pos) >= 0 |
8425 | && XINT (pos) < XSTRING (string)->size) | |
30690496 DL |
8426 | { |
8427 | map = Fget_text_property (pos, Qlocal_map, string); | |
8428 | if (!NILP (map)) | |
8429 | orig_local_map = map; | |
8430 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8431 | if (!NILP (map2)) | |
8432 | orig_keymap = map2; | |
8433 | if (!NILP (map) || !NILP (map2)) | |
8434 | goto replay_sequence; | |
8435 | } | |
7ee32cda GM |
8436 | } |
8437 | ||
7e85b935 | 8438 | goto replay_key; |
5ec75a55 | 8439 | } |
db14cfc5 GM |
8440 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8441 | && NILP (from_string)) | |
8442 | { | |
8443 | /* For a click on a string, i.e. overlay string or a | |
8444 | string displayed via the `display' property, | |
8445 | consider `local-map' and `keymap' properties of | |
8446 | that string. */ | |
8447 | Lisp_Object string, pos, map, map2; | |
8448 | ||
8449 | string = POSN_STRING (EVENT_START (key)); | |
8450 | pos = XCDR (string); | |
8451 | string = XCAR (string); | |
8452 | if (XINT (pos) >= 0 | |
8453 | && XINT (pos) < XSTRING (string)->size) | |
8454 | { | |
8455 | map = Fget_text_property (pos, Qlocal_map, string); | |
8456 | if (!NILP (map)) | |
8457 | orig_local_map = map; | |
8458 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8459 | if (!NILP (map2)) | |
8460 | orig_keymap = map2; | |
8461 | ||
8462 | if (!NILP (map) || !NILP (map2)) | |
8463 | { | |
8464 | from_string = string; | |
8465 | goto replay_sequence; | |
8466 | } | |
8467 | } | |
8468 | } | |
0a7f1fc0 | 8469 | } |
7539e11f | 8470 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8471 | && CONSP (EVENT_START (key)) |
7539e11f | 8472 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8473 | { |
9b8eb840 | 8474 | Lisp_Object posn; |
7e85b935 | 8475 | |
9b8eb840 | 8476 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8477 | /* Handle menu-bar events: |
8478 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8479 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8480 | { |
8481 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8482 | error ("Key sequence too long"); |
7e85b935 RS |
8483 | keybuf[t] = posn; |
8484 | keybuf[t+1] = key; | |
8485 | ||
8486 | /* Zap the position in key, so we know that we've | |
8487 | expanded it, and don't try to do so again. */ | |
8488 | POSN_BUFFER_POSN (EVENT_START (key)) | |
8489 | = Fcons (posn, Qnil); | |
8490 | ||
8491 | mock_input = t + 2; | |
8492 | goto replay_sequence; | |
8493 | } | |
8c18cbfb | 8494 | else if (CONSP (posn)) |
7e85b935 RS |
8495 | { |
8496 | /* We're looking at the second event of a | |
8497 | sequence which we expanded before. Set | |
8498 | last_real_key_start appropriately. */ | |
8499 | if (last_real_key_start == t && t > 0) | |
8500 | last_real_key_start = t - 1; | |
8501 | } | |
a6d53864 | 8502 | } |
284f4730 | 8503 | } |
f4255cd1 JB |
8504 | |
8505 | /* We have finally decided that KEY is something we might want | |
8506 | to look up. */ | |
284f4730 JB |
8507 | first_binding = (follow_key (key, |
8508 | nmaps - first_binding, | |
253598e4 | 8509 | submaps + first_binding, |
284f4730 | 8510 | defs + first_binding, |
4e50f26a | 8511 | submaps + first_binding) |
284f4730 | 8512 | + first_binding); |
0a7f1fc0 | 8513 | |
f4255cd1 | 8514 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
8515 | if (first_binding >= nmaps) |
8516 | { | |
9b8eb840 | 8517 | Lisp_Object head; |
0a7f1fc0 | 8518 | |
9b8eb840 | 8519 | head = EVENT_HEAD (key); |
24736fbc | 8520 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
8521 | { |
8522 | read_key_sequence_cmd = Vprefix_help_command; | |
8523 | keybuf[t++] = key; | |
8524 | last_nonmenu_event = key; | |
bc536d84 RS |
8525 | /* The Microsoft C compiler can't handle the goto that |
8526 | would go here. */ | |
309b0fc8 | 8527 | dummyflag = 1; |
0d882d52 | 8528 | break; |
7e85b935 RS |
8529 | } |
8530 | ||
8c18cbfb | 8531 | if (SYMBOLP (head)) |
0a7f1fc0 | 8532 | { |
9b8eb840 KH |
8533 | Lisp_Object breakdown; |
8534 | int modifiers; | |
0a7f1fc0 | 8535 | |
9b8eb840 | 8536 | breakdown = parse_modifiers (head); |
7539e11f | 8537 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
8538 | /* Attempt to reduce an unbound mouse event to a simpler |
8539 | event that is bound: | |
8540 | Drags reduce to clicks. | |
8541 | Double-clicks reduce to clicks. | |
8542 | Triple-clicks reduce to double-clicks, then to clicks. | |
8543 | Down-clicks are eliminated. | |
8544 | Double-downs reduce to downs, then are eliminated. | |
8545 | Triple-downs reduce to double-downs, then to downs, | |
8546 | then are eliminated. */ | |
8547 | if (modifiers & (down_modifier | drag_modifier | |
8548 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 8549 | { |
559f9d04 RS |
8550 | while (modifiers & (down_modifier | drag_modifier |
8551 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
8552 | { |
8553 | Lisp_Object new_head, new_click; | |
8554 | if (modifiers & triple_modifier) | |
8555 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
8556 | else if (modifiers & double_modifier) |
8557 | modifiers &= ~double_modifier; | |
8558 | else if (modifiers & drag_modifier) | |
8559 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
8560 | else |
8561 | { | |
8562 | /* Dispose of this `down' event by simply jumping | |
8563 | back to replay_key, to get another event. | |
8564 | ||
8565 | Note that if this event came from mock input, | |
8566 | then just jumping back to replay_key will just | |
8567 | hand it to us again. So we have to wipe out any | |
8568 | mock input. | |
8569 | ||
8570 | We could delete keybuf[t] and shift everything | |
8571 | after that to the left by one spot, but we'd also | |
8572 | have to fix up any variable that points into | |
8573 | keybuf, and shifting isn't really necessary | |
8574 | anyway. | |
8575 | ||
8576 | Adding prefixes for non-textual mouse clicks | |
8577 | creates two characters of mock input, and both | |
8578 | must be thrown away. If we're only looking at | |
8579 | the prefix now, we can just jump back to | |
8580 | replay_key. On the other hand, if we've already | |
8581 | processed the prefix, and now the actual click | |
8582 | itself is giving us trouble, then we've lost the | |
8583 | state of the keymaps we want to backtrack to, and | |
8584 | we need to replay the whole sequence to rebuild | |
8585 | it. | |
8586 | ||
8587 | Beyond that, only function key expansion could | |
8588 | create more than two keys, but that should never | |
8589 | generate mouse events, so it's okay to zero | |
8590 | mock_input in that case too. | |
8591 | ||
8592 | Isn't this just the most wonderful code ever? */ | |
8593 | if (t == last_real_key_start) | |
8594 | { | |
8595 | mock_input = 0; | |
8596 | goto replay_key; | |
8597 | } | |
8598 | else | |
8599 | { | |
8600 | mock_input = last_real_key_start; | |
8601 | goto replay_sequence; | |
8602 | } | |
8603 | } | |
8604 | ||
27203ead | 8605 | new_head |
7539e11f | 8606 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
8607 | new_click |
8608 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
8609 | |
8610 | /* Look for a binding for this new key. follow_key | |
8611 | promises that it didn't munge submaps the | |
8612 | last time we called it, since key was unbound. */ | |
27203ead RS |
8613 | first_binding |
8614 | = (follow_key (new_click, | |
8615 | nmaps - local_first_binding, | |
8616 | submaps + local_first_binding, | |
8617 | defs + local_first_binding, | |
4e50f26a | 8618 | submaps + local_first_binding) |
27203ead | 8619 | + local_first_binding); |
fbcd35bd JB |
8620 | |
8621 | /* If that click is bound, go for it. */ | |
8622 | if (first_binding < nmaps) | |
8623 | { | |
8624 | key = new_click; | |
8625 | break; | |
8626 | } | |
8627 | /* Otherwise, we'll leave key set to the drag event. */ | |
8628 | } | |
0a7f1fc0 JB |
8629 | } |
8630 | } | |
8631 | } | |
8632 | ||
284f4730 | 8633 | keybuf[t++] = key; |
7d6de002 RS |
8634 | /* Normally, last_nonmenu_event gets the previous key we read. |
8635 | But when a mouse popup menu is being used, | |
8636 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8637 | event that preceded the first level of menu. */ | |
8638 | if (!used_mouse_menu) | |
8639 | last_nonmenu_event = key; | |
284f4730 | 8640 | |
6321824f RS |
8641 | /* Record what part of this_command_keys is the current key sequence. */ |
8642 | this_single_command_key_start = this_command_key_count - t; | |
8643 | ||
3fe8e9a2 RS |
8644 | prev_fkey_map = fkey_map; |
8645 | prev_fkey_start = fkey_start; | |
8646 | prev_fkey_end = fkey_end; | |
8647 | ||
8648 | prev_keytran_map = keytran_map; | |
8649 | prev_keytran_start = keytran_start; | |
8650 | prev_keytran_end = keytran_end; | |
8651 | ||
284f4730 | 8652 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
8653 | off the end of it. We only want to scan real keyboard input |
8654 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 8655 | re-reading old events, don't examine it. */ |
4e50f26a | 8656 | if (first_binding >= nmaps |
253598e4 | 8657 | && t >= mock_input) |
284f4730 JB |
8658 | { |
8659 | Lisp_Object fkey_next; | |
8660 | ||
e9bf89a0 RS |
8661 | /* Continue scan from fkey_end until we find a bound suffix. |
8662 | If we fail, increment fkey_start | |
8663 | and start fkey_end from there. */ | |
284f4730 JB |
8664 | while (fkey_end < t) |
8665 | { | |
f4255cd1 JB |
8666 | Lisp_Object key; |
8667 | ||
8668 | key = keybuf[fkey_end++]; | |
e74fbc70 | 8669 | fkey_next |
db785038 | 8670 | = access_keymap (fkey_map, key, 1, 0, 1); |
c700c260 RS |
8671 | |
8672 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8673 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8674 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 8675 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
8676 | do_autoload (XSYMBOL (fkey_next)->function, |
8677 | fkey_next); | |
c700c260 RS |
8678 | |
8679 | /* Handle a symbol whose function definition is a keymap | |
8680 | or an array. */ | |
0afc861b RS |
8681 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8682 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
02067692 | 8683 | || KEYMAPP (XSYMBOL (fkey_next)->function))) |
0afc861b | 8684 | fkey_next = XSYMBOL (fkey_next)->function; |
067ffa38 | 8685 | |
7a80a6f6 RS |
8686 | #if 0 /* I didn't turn this on, because it might cause trouble |
8687 | for the mapping of return into C-m and tab into C-i. */ | |
8688 | /* Optionally don't map function keys into other things. | |
8689 | This enables the user to redefine kp- keys easily. */ | |
8690 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8691 | fkey_next = Qnil; | |
8692 | #endif | |
8693 | ||
1abe6abe RS |
8694 | /* If the function key map gives a function, not an |
8695 | array, then call the function with no args and use | |
8696 | its value instead. */ | |
8697 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8698 | && fkey_end == t) | |
8699 | { | |
8700 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8701 | Lisp_Object tem; | |
8702 | tem = fkey_next; | |
8703 | ||
8704 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8705 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8706 | UNGCPRO; |
8707 | /* If the function returned something invalid, | |
8708 | barf--don't ignore it. | |
df0f2ba1 | 8709 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8710 | other variables.) */ |
8711 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8712 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8713 | } |
8714 | ||
e9bf89a0 RS |
8715 | function_key_possible = ! NILP (fkey_next); |
8716 | ||
85bc5181 | 8717 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8718 | function key map and it's a suffix of the current |
85bc5181 | 8719 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8720 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8721 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8722 | && fkey_end == t) |
8723 | { | |
2e864a76 | 8724 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8725 | |
8726 | t = fkey_start + len; | |
284f4730 | 8727 | if (t >= bufsize) |
3fe8e9a2 | 8728 | error ("Key sequence too long"); |
284f4730 | 8729 | |
f5ea6163 JB |
8730 | if (VECTORP (fkey_next)) |
8731 | bcopy (XVECTOR (fkey_next)->contents, | |
8732 | keybuf + fkey_start, | |
8733 | (t - fkey_start) * sizeof (keybuf[0])); | |
8734 | else if (STRINGP (fkey_next)) | |
8735 | { | |
8736 | int i; | |
8737 | ||
8738 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8739 | XSETFASTINT (keybuf[fkey_start + i], |
8740 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8741 | } |
df0f2ba1 | 8742 | |
284f4730 JB |
8743 | mock_input = t; |
8744 | fkey_start = fkey_end = t; | |
32e6d806 | 8745 | fkey_map = Vfunction_key_map; |
284f4730 | 8746 | |
3bd0dffb KH |
8747 | /* Do pass the results through key-translation-map. |
8748 | But don't retranslate what key-translation-map | |
8749 | has already translated. */ | |
8750 | keytran_end = keytran_start; | |
00a78037 RS |
8751 | keytran_map = Vkey_translation_map; |
8752 | ||
f4255cd1 | 8753 | goto replay_sequence; |
284f4730 | 8754 | } |
df0f2ba1 | 8755 | |
02067692 | 8756 | fkey_map = get_keymap (fkey_next, 0, 1); |
284f4730 | 8757 | |
df0f2ba1 | 8758 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8759 | fkey_start. */ |
02067692 | 8760 | if (!CONSP (fkey_map)) |
284f4730 JB |
8761 | { |
8762 | fkey_end = ++fkey_start; | |
8763 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8764 | function_key_possible = 0; |
284f4730 JB |
8765 | } |
8766 | } | |
8767 | } | |
a612e298 RS |
8768 | |
8769 | /* Look for this sequence in key-translation-map. */ | |
8770 | { | |
8771 | Lisp_Object keytran_next; | |
8772 | ||
8773 | /* Scan from keytran_end until we find a bound suffix. */ | |
8774 | while (keytran_end < t) | |
8775 | { | |
8776 | Lisp_Object key; | |
8777 | ||
8778 | key = keybuf[keytran_end++]; | |
a612e298 | 8779 | keytran_next |
db785038 | 8780 | = access_keymap (keytran_map, key, 1, 0, 1); |
a612e298 | 8781 | |
c700c260 | 8782 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8783 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8784 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8785 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8786 | do_autoload (XSYMBOL (keytran_next)->function, |
8787 | keytran_next); | |
8788 | ||
c700c260 RS |
8789 | /* Handle a symbol whose function definition is a keymap |
8790 | or an array. */ | |
e83f6bb0 | 8791 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 | 8792 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
02067692 | 8793 | || KEYMAPP (XSYMBOL (keytran_next)->function))) |
e83f6bb0 RS |
8794 | keytran_next = XSYMBOL (keytran_next)->function; |
8795 | ||
1abe6abe | 8796 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8797 | array, then call the function with one arg and use |
1abe6abe RS |
8798 | its value instead. */ |
8799 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8800 | && keytran_end == t) | |
8801 | { | |
8802 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8803 | Lisp_Object tem; | |
8804 | tem = keytran_next; | |
8805 | ||
40932d1a | 8806 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8807 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8808 | UNGCPRO; |
8809 | /* If the function returned something invalid, | |
8810 | barf--don't ignore it. | |
df0f2ba1 | 8811 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8812 | other variables.) */ |
8813 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8814 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8815 | } |
8816 | ||
00a78037 RS |
8817 | key_translation_possible = ! NILP (keytran_next); |
8818 | ||
a612e298 | 8819 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8820 | key translation map and it's a suffix of the current |
a612e298 RS |
8821 | sequence (i.e. keytran_end == t), replace it with |
8822 | the binding and restart with keytran_start at the end. */ | |
8823 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8824 | && keytran_end == t) | |
8825 | { | |
2e864a76 | 8826 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8827 | |
8828 | t = keytran_start + len; | |
8829 | if (t >= bufsize) | |
3fe8e9a2 | 8830 | error ("Key sequence too long"); |
a612e298 RS |
8831 | |
8832 | if (VECTORP (keytran_next)) | |
8833 | bcopy (XVECTOR (keytran_next)->contents, | |
8834 | keybuf + keytran_start, | |
8835 | (t - keytran_start) * sizeof (keybuf[0])); | |
8836 | else if (STRINGP (keytran_next)) | |
8837 | { | |
8838 | int i; | |
8839 | ||
8840 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8841 | XSETFASTINT (keybuf[keytran_start + i], |
8842 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8843 | } |
8844 | ||
8845 | mock_input = t; | |
8846 | keytran_start = keytran_end = t; | |
8847 | keytran_map = Vkey_translation_map; | |
8848 | ||
00a78037 RS |
8849 | /* Don't pass the results of key-translation-map |
8850 | through function-key-map. */ | |
8851 | fkey_start = fkey_end = t; | |
3bd0dffb | 8852 | fkey_map = Vfunction_key_map; |
00a78037 | 8853 | |
a612e298 RS |
8854 | goto replay_sequence; |
8855 | } | |
8856 | ||
02067692 | 8857 | keytran_map = get_keymap (keytran_next, 0, 1); |
a612e298 | 8858 | |
df0f2ba1 | 8859 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 | 8860 | keytran_start. */ |
02067692 | 8861 | if (!CONSP (keytran_map)) |
a612e298 RS |
8862 | { |
8863 | keytran_end = ++keytran_start; | |
8864 | keytran_map = Vkey_translation_map; | |
00a78037 | 8865 | key_translation_possible = 0; |
a612e298 RS |
8866 | } |
8867 | } | |
8868 | } | |
4e50f26a RS |
8869 | |
8870 | /* If KEY is not defined in any of the keymaps, | |
8871 | and cannot be part of a function key or translation, | |
8872 | and is an upper case letter | |
8873 | use the corresponding lower-case letter instead. */ | |
8874 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 8875 | && ! key_translation_possible |
8c18cbfb | 8876 | && INTEGERP (key) |
4e50f26a | 8877 | && ((((XINT (key) & 0x3ffff) |
301738ed | 8878 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
8879 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
8880 | || (XINT (key) & shift_modifier))) | |
8881 | { | |
569871d2 | 8882 | Lisp_Object new_key; |
569871d2 | 8883 | |
309b0fc8 RS |
8884 | original_uppercase = key; |
8885 | original_uppercase_position = t - 1; | |
8886 | ||
831f35a2 | 8887 | if (XINT (key) & shift_modifier) |
569871d2 | 8888 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 8889 | else |
569871d2 RS |
8890 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
8891 | | (XINT (key) & ~0x3ffff))); | |
8892 | ||
3fe8e9a2 RS |
8893 | /* We have to do this unconditionally, regardless of whether |
8894 | the lower-case char is defined in the keymaps, because they | |
8895 | might get translated through function-key-map. */ | |
8896 | keybuf[t - 1] = new_key; | |
8897 | mock_input = t; | |
8898 | ||
8899 | fkey_map = prev_fkey_map; | |
8900 | fkey_start = prev_fkey_start; | |
8901 | fkey_end = prev_fkey_end; | |
8902 | ||
8903 | keytran_map = prev_keytran_map; | |
8904 | keytran_start = prev_keytran_start; | |
8905 | keytran_end = prev_keytran_end; | |
8906 | ||
8907 | goto replay_sequence; | |
4e50f26a | 8908 | } |
ef8fd672 RS |
8909 | /* If KEY is not defined in any of the keymaps, |
8910 | and cannot be part of a function key or translation, | |
8911 | and is a shifted function key, | |
8912 | use the corresponding unshifted function key instead. */ | |
8913 | if (first_binding == nmaps && ! function_key_possible | |
8914 | && ! key_translation_possible | |
8915 | && SYMBOLP (key)) | |
8916 | { | |
8917 | Lisp_Object breakdown; | |
8918 | int modifiers; | |
8919 | ||
8920 | breakdown = parse_modifiers (key); | |
7539e11f | 8921 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
8922 | if (modifiers & shift_modifier) |
8923 | { | |
569871d2 | 8924 | Lisp_Object new_key; |
3fe8e9a2 RS |
8925 | |
8926 | original_uppercase = key; | |
8927 | original_uppercase_position = t - 1; | |
ef8fd672 | 8928 | |
569871d2 RS |
8929 | modifiers &= ~shift_modifier; |
8930 | new_key = apply_modifiers (modifiers, | |
7539e11f | 8931 | XCAR (breakdown)); |
569871d2 | 8932 | |
3fe8e9a2 RS |
8933 | keybuf[t - 1] = new_key; |
8934 | mock_input = t; | |
8935 | ||
8936 | fkey_map = prev_fkey_map; | |
8937 | fkey_start = prev_fkey_start; | |
8938 | fkey_end = prev_fkey_end; | |
8939 | ||
8940 | keytran_map = prev_keytran_map; | |
8941 | keytran_start = prev_keytran_start; | |
8942 | keytran_end = prev_keytran_end; | |
8943 | ||
8944 | goto replay_sequence; | |
ef8fd672 RS |
8945 | } |
8946 | } | |
284f4730 JB |
8947 | } |
8948 | ||
309b0fc8 | 8949 | if (!dummyflag) |
bc536d84 RS |
8950 | read_key_sequence_cmd = (first_binding < nmaps |
8951 | ? defs[first_binding] | |
8952 | : Qnil); | |
284f4730 | 8953 | |
cd21b839 | 8954 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 8955 | unbind_to (count, Qnil); |
07f76a14 | 8956 | |
3fe8e9a2 RS |
8957 | /* Don't downcase the last character if the caller says don't. |
8958 | Don't downcase it if the result is undefined, either. */ | |
8959 | if ((dont_downcase_last || first_binding >= nmaps) | |
8960 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
8961 | keybuf[t - 1] = original_uppercase; |
8962 | ||
07f76a14 JB |
8963 | /* Occasionally we fabricate events, perhaps by expanding something |
8964 | according to function-key-map, or by adding a prefix symbol to a | |
8965 | mouse click in the scroll bar or modeline. In this cases, return | |
8966 | the entire generated key sequence, even if we hit an unbound | |
8967 | prefix or a definition before the end. This means that you will | |
8968 | be able to push back the event properly, and also means that | |
8969 | read-key-sequence will always return a logical unit. | |
8970 | ||
8971 | Better ideas? */ | |
cca310da JB |
8972 | for (; t < mock_input; t++) |
8973 | { | |
f2647d04 DL |
8974 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8975 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8976 | echo_char (keybuf[t]); |
cca310da JB |
8977 | add_command_key (keybuf[t]); |
8978 | } | |
07f76a14 | 8979 | |
7d18f9ae RS |
8980 | |
8981 | ||
2dc00208 | 8982 | UNGCPRO; |
284f4730 JB |
8983 | return t; |
8984 | } | |
8985 | ||
a612e298 RS |
8986 | #if 0 /* This doc string is too long for some compilers. |
8987 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8988 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8989 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8990 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8991 | current local and global maps.\n\ | |
8992 | \n\ | |
c0a58692 RS |
8993 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8994 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8995 | as a continuation of the previous key.\n\ | |
284f4730 | 8996 | \n\ |
309b0fc8 RS |
8997 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8998 | convert the last event to lower case. (Normally any upper case event\n\ | |
8999 | is converted to lower case if the original event is undefined and the lower\n\ | |
9000 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
9001 | a key sequence to be defined.\n\ | |
9002 | \n\ | |
cb5df6ae JB |
9003 | A C-g typed while in this function is treated like any other character,\n\ |
9004 | and `quit-flag' is not set.\n\ | |
9005 | \n\ | |
9006 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
9007 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
9008 | of the selected window as normal.\n\ | |
ede41463 | 9009 | ""\n\ |
cb5df6ae JB |
9010 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
9011 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
9012 | or multi-click event is unbound, but the corresponding click event would\n\ |
9013 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 9014 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 9015 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
9016 | \n\ |
9017 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
9018 | lines separating windows, and scroll bars with imaginary keys\n\ |
9019 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 9020 | \n\ |
ce98e608 KH |
9021 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
9022 | function will process a switch-frame event if the user switches frames\n\ | |
9023 | before typing anything. If the user switches frames in the middle of a\n\ | |
9024 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
9025 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
9026 | \n\ |
9027 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
9028 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
9029 | `function-key-map' for more details.\n\ |
9030 | \n\ | |
9031 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
9032 | that this key sequence is being read by something that will\n\ | |
9033 | read commands one after another. It should be nil if the caller\n\ | |
9034 | will read just one key sequence.") | |
b638f328 | 9035 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
9036 | #endif |
9037 | ||
d5eecefb | 9038 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 9039 | 0) |
d5eecefb RS |
9040 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9041 | command_loop) | |
309b0fc8 | 9042 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9043 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9044 | { |
9045 | Lisp_Object keybuf[30]; | |
9046 | register int i; | |
03cee6ae | 9047 | struct gcpro gcpro1; |
d5eecefb | 9048 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
9049 | |
9050 | if (!NILP (prompt)) | |
9051 | CHECK_STRING (prompt, 0); | |
9052 | QUIT; | |
9053 | ||
d5eecefb RS |
9054 | specbind (Qinput_method_exit_on_first_char, |
9055 | (NILP (command_loop) ? Qt : Qnil)); | |
9056 | specbind (Qinput_method_use_echo_area, | |
9057 | (NILP (command_loop) ? Qt : Qnil)); | |
9058 | ||
284f4730 JB |
9059 | bzero (keybuf, sizeof keybuf); |
9060 | GCPRO1 (keybuf[0]); | |
9061 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9062 | ||
daa37602 | 9063 | if (NILP (continue_echo)) |
6321824f RS |
9064 | { |
9065 | this_command_key_count = 0; | |
9066 | this_single_command_key_start = 0; | |
9067 | } | |
c0a58692 | 9068 | |
d0c48478 | 9069 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9070 | if (display_hourglass_p) |
9071 | cancel_hourglass (); | |
d0c48478 GM |
9072 | #endif |
9073 | ||
309b0fc8 | 9074 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9075 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9076 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9077 | |
ae18aa3b GM |
9078 | #if 0 /* The following is fine for code reading a key sequence and |
9079 | then proceeding with a lenghty compuation, but it's not good | |
9080 | for code reading keys in a loop, like an input method. */ | |
d0c48478 | 9081 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9082 | if (display_hourglass_p) |
9083 | start_hourglass (); | |
ae18aa3b | 9084 | #endif |
d0c48478 GM |
9085 | #endif |
9086 | ||
dcc408a0 RS |
9087 | if (i == -1) |
9088 | { | |
9089 | Vquit_flag = Qt; | |
9090 | QUIT; | |
9091 | } | |
284f4730 | 9092 | UNGCPRO; |
d5eecefb | 9093 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9094 | } |
e39da3d7 RS |
9095 | |
9096 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9097 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 9098 | "Like `read-key-sequence' but always return a vector.") |
3007ebfb GM |
9099 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9100 | command_loop) | |
e39da3d7 | 9101 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9102 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9103 | { |
9104 | Lisp_Object keybuf[30]; | |
9105 | register int i; | |
03cee6ae | 9106 | struct gcpro gcpro1; |
d5eecefb | 9107 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
9108 | |
9109 | if (!NILP (prompt)) | |
9110 | CHECK_STRING (prompt, 0); | |
9111 | QUIT; | |
9112 | ||
d5eecefb RS |
9113 | specbind (Qinput_method_exit_on_first_char, |
9114 | (NILP (command_loop) ? Qt : Qnil)); | |
9115 | specbind (Qinput_method_use_echo_area, | |
9116 | (NILP (command_loop) ? Qt : Qnil)); | |
9117 | ||
e39da3d7 RS |
9118 | bzero (keybuf, sizeof keybuf); |
9119 | GCPRO1 (keybuf[0]); | |
9120 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9121 | ||
9122 | if (NILP (continue_echo)) | |
9123 | { | |
9124 | this_command_key_count = 0; | |
9125 | this_single_command_key_start = 0; | |
9126 | } | |
9127 | ||
d0c48478 | 9128 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9129 | if (display_hourglass_p) |
9130 | cancel_hourglass (); | |
d0c48478 GM |
9131 | #endif |
9132 | ||
e39da3d7 RS |
9133 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9134 | prompt, ! NILP (dont_downcase_last), | |
9135 | ! NILP (can_return_switch_frame), 0); | |
9136 | ||
d0c48478 | 9137 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9138 | if (display_hourglass_p) |
9139 | start_hourglass (); | |
d0c48478 GM |
9140 | #endif |
9141 | ||
e39da3d7 RS |
9142 | if (i == -1) |
9143 | { | |
9144 | Vquit_flag = Qt; | |
9145 | QUIT; | |
9146 | } | |
9147 | UNGCPRO; | |
d5eecefb | 9148 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9149 | } |
284f4730 | 9150 | \f |
158f7532 | 9151 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
9152 | "Execute CMD as an editor command.\n\ |
9153 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
9154 | Optional second arg RECORD-FLAG non-nil\n\ | |
9155 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
9156 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
9157 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 9158 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
9159 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
9160 | a special event, so ignore the prefix argument and don't clear it.") | |
9161 | (cmd, record_flag, keys, special) | |
9162 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9163 | { |
9164 | register Lisp_Object final; | |
9165 | register Lisp_Object tem; | |
9166 | Lisp_Object prefixarg; | |
9167 | struct backtrace backtrace; | |
9168 | extern int debug_on_next_call; | |
9169 | ||
284f4730 JB |
9170 | debug_on_next_call = 0; |
9171 | ||
158f7532 RS |
9172 | if (NILP (special)) |
9173 | { | |
9174 | prefixarg = current_kboard->Vprefix_arg; | |
9175 | Vcurrent_prefix_arg = prefixarg; | |
9176 | current_kboard->Vprefix_arg = Qnil; | |
9177 | } | |
9178 | else | |
9179 | prefixarg = Qnil; | |
9180 | ||
8c18cbfb | 9181 | if (SYMBOLP (cmd)) |
284f4730 JB |
9182 | { |
9183 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9184 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9185 | { |
9186 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9187 | if (!NILP (tem)) | |
9188 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9189 | } | |
284f4730 JB |
9190 | } |
9191 | ||
01e26217 | 9192 | while (1) |
284f4730 | 9193 | { |
ffd56f97 | 9194 | final = Findirect_function (cmd); |
284f4730 JB |
9195 | |
9196 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9197 | { |
9198 | struct gcpro gcpro1, gcpro2; | |
9199 | ||
9200 | GCPRO2 (cmd, prefixarg); | |
9201 | do_autoload (final, cmd); | |
9202 | UNGCPRO; | |
9203 | } | |
284f4730 JB |
9204 | else |
9205 | break; | |
9206 | } | |
9207 | ||
8c18cbfb | 9208 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9209 | { |
9210 | /* If requested, place the macro in the command history. For | |
9211 | other sorts of commands, call-interactively takes care of | |
9212 | this. */ | |
e57d8fd8 | 9213 | if (!NILP (record_flag)) |
f4385381 RS |
9214 | { |
9215 | Vcommand_history | |
9216 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9217 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9218 | Vcommand_history); | |
9219 | ||
9220 | /* Don't keep command history around forever. */ | |
9221 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9222 | { | |
9223 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9224 | if (CONSP (tem)) | |
7539e11f | 9225 | XCDR (tem) = Qnil; |
f4385381 RS |
9226 | } |
9227 | } | |
284f4730 JB |
9228 | |
9229 | return Fexecute_kbd_macro (final, prefixarg); | |
9230 | } | |
f4385381 | 9231 | |
8c18cbfb | 9232 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9233 | { |
9234 | backtrace.next = backtrace_list; | |
9235 | backtrace_list = &backtrace; | |
9236 | backtrace.function = &Qcall_interactively; | |
9237 | backtrace.args = &cmd; | |
9238 | backtrace.nargs = 1; | |
9239 | backtrace.evalargs = 0; | |
9240 | ||
e57d8fd8 | 9241 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9242 | |
9243 | backtrace_list = backtrace.next; | |
9244 | return tem; | |
9245 | } | |
9246 | return Qnil; | |
9247 | } | |
c970a760 GM |
9248 | |
9249 | ||
284f4730 | 9250 | \f |
284f4730 JB |
9251 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
9252 | 1, 1, "P", | |
9253 | "Read function name, then read its arguments and call it.") | |
9254 | (prefixarg) | |
9255 | Lisp_Object prefixarg; | |
9256 | { | |
9257 | Lisp_Object function; | |
9258 | char buf[40]; | |
9259 | Lisp_Object saved_keys; | |
5434fce6 | 9260 | Lisp_Object bindings, value; |
214360e9 | 9261 | struct gcpro gcpro1, gcpro2; |
284f4730 | 9262 | |
b0f2a7bf KH |
9263 | saved_keys = Fvector (this_command_key_count, |
9264 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 9265 | buf[0] = 0; |
fde7aff8 | 9266 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
9267 | |
9268 | if (EQ (prefixarg, Qminus)) | |
9269 | strcpy (buf, "- "); | |
7539e11f | 9270 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9271 | strcpy (buf, "C-u "); |
7539e11f | 9272 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9273 | { |
9274 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9275 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9276 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9277 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9278 | else |
9279 | abort (); | |
9280 | } | |
8c18cbfb | 9281 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9282 | { |
9283 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9284 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9285 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9286 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9287 | else |
9288 | abort (); | |
9289 | } | |
284f4730 JB |
9290 | |
9291 | /* This isn't strictly correct if execute-extended-command | |
9292 | is bound to anything else. Perhaps it should use | |
9293 | this_command_keys? */ | |
9294 | strcat (buf, "M-x "); | |
9295 | ||
9296 | /* Prompt with buf, and then read a string, completing from and | |
9297 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9298 | any initial input. Save the command read on the extended-command |
03b4122a | 9299 | history list. */ |
284f4730 JB |
9300 | function = Fcompleting_read (build_string (buf), |
9301 | Vobarray, Qcommandp, | |
4328577a KH |
9302 | Qt, Qnil, Qextended_command_history, Qnil, |
9303 | Qnil); | |
284f4730 | 9304 | |
1f5b1641 RS |
9305 | if (STRINGP (function) && XSTRING (function)->size == 0) |
9306 | error ("No command name given"); | |
9307 | ||
1113d9db JB |
9308 | /* Set this_command_keys to the concatenation of saved_keys and |
9309 | function, followed by a RET. */ | |
284f4730 | 9310 | { |
1113d9db | 9311 | struct Lisp_String *str; |
b0f2a7bf | 9312 | Lisp_Object *keys; |
284f4730 | 9313 | int i; |
284f4730 | 9314 | |
1113d9db | 9315 | this_command_key_count = 0; |
6321824f | 9316 | this_single_command_key_start = 0; |
1113d9db | 9317 | |
b0f2a7bf KH |
9318 | keys = XVECTOR (saved_keys)->contents; |
9319 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9320 | add_command_key (keys[i]); | |
1113d9db JB |
9321 | |
9322 | str = XSTRING (function); | |
9323 | for (i = 0; i < str->size; i++) | |
301738ed | 9324 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9325 | |
301738ed | 9326 | add_command_key (make_number ('\015')); |
284f4730 JB |
9327 | } |
9328 | ||
9329 | UNGCPRO; | |
9330 | ||
0a7f1fc0 | 9331 | function = Fintern (function, Qnil); |
d8bcf58e | 9332 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9333 | Vthis_command = function; |
9334 | real_this_command = function; | |
284f4730 | 9335 | |
6526ab49 RS |
9336 | /* If enabled, show which key runs this command. */ |
9337 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9338 | && NILP (Vexecuting_macro) |
6526ab49 | 9339 | && SYMBOLP (function)) |
5434fce6 RS |
9340 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
9341 | Qt, Qnil); | |
9342 | else | |
9343 | bindings = Qnil; | |
6526ab49 | 9344 | |
5434fce6 RS |
9345 | value = Qnil; |
9346 | GCPRO2 (bindings, value); | |
9347 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9348 | |
5434fce6 | 9349 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9350 | if (!NILP (bindings) |
ee112567 KH |
9351 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9352 | Qmouse_movement))) | |
5434fce6 RS |
9353 | { |
9354 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9355 | int delay_time; |
985f9f66 | 9356 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9357 | /* This command displayed something in the echo area; |
9358 | so wait a few seconds, then display our suggestion message. */ | |
9359 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9360 | ? XINT (Vsuggest_key_bindings) : 2); | |
9361 | else | |
9362 | /* This command left the echo area empty, | |
9363 | so display our message immediately. */ | |
9364 | delay_time = 0; | |
9365 | ||
9366 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9367 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9368 | { |
5434fce6 RS |
9369 | Lisp_Object binding; |
9370 | char *newmessage; | |
985f9f66 | 9371 | int message_p = push_message (); |
c970a760 | 9372 | int count = BINDING_STACK_SIZE (); |
5434fce6 | 9373 | |
c970a760 | 9374 | record_unwind_protect (push_message_unwind, Qnil); |
5434fce6 RS |
9375 | binding = Fkey_description (bindings); |
9376 | ||
9377 | newmessage | |
9378 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 9379 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 9380 | + 100); |
3ababa60 | 9381 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 9382 | XSYMBOL (function)->name->data, |
5434fce6 | 9383 | XSTRING (binding)->data); |
301738ed RS |
9384 | message2_nolog (newmessage, |
9385 | strlen (newmessage), | |
9386 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9387 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9388 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9389 | Qnil, Qnil)) |
9390 | && message_p) | |
9391 | restore_message (); | |
9392 | ||
c970a760 | 9393 | unbind_to (count, Qnil); |
6526ab49 RS |
9394 | } |
9395 | } | |
9396 | ||
5434fce6 | 9397 | RETURN_UNGCPRO (value); |
284f4730 | 9398 | } |
6526ab49 RS |
9399 | |
9400 | /* Find the set of keymaps now active. | |
9401 | Store into *MAPS_P a vector holding the various maps | |
9402 | and return the number of them. The vector was malloc'd | |
9403 | and the caller should free it. */ | |
9404 | ||
9405 | int | |
9406 | current_active_maps (maps_p) | |
9407 | Lisp_Object **maps_p; | |
9408 | { | |
9409 | Lisp_Object *tmaps, *maps; | |
9410 | int nmaps; | |
9411 | ||
9412 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
9413 | if (!NILP (Voverriding_local_map_menu_flag)) | |
9414 | { | |
9415 | /* Yes, use them (if non-nil) as well as the global map. */ | |
9416 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
9417 | nmaps = 0; | |
9418 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
9419 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
9420 | if (!NILP (Voverriding_local_map)) | |
9421 | maps[nmaps++] = Voverriding_local_map; | |
9422 | } | |
9423 | else | |
9424 | { | |
30690496 DL |
9425 | /* No, so use major and minor mode keymaps and keymap property. */ |
9426 | int extra_maps = 2; | |
24a40fbb | 9427 | Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap); |
30690496 DL |
9428 | if (!NILP (map)) |
9429 | extra_maps = 3; | |
6526ab49 | 9430 | nmaps = current_minor_maps (NULL, &tmaps); |
30690496 DL |
9431 | maps = (Lisp_Object *) alloca ((nmaps + extra_maps) |
9432 | * sizeof (maps[0])); | |
6526ab49 | 9433 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); |
30690496 | 9434 | if (!NILP (map)) |
9f83cf0b | 9435 | maps[nmaps++] = map; |
24a40fbb | 9436 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); |
6526ab49 RS |
9437 | } |
9438 | maps[nmaps++] = current_global_map; | |
9439 | ||
9440 | *maps_p = maps; | |
9441 | return nmaps; | |
9442 | } | |
284f4730 | 9443 | \f |
d9d4c147 | 9444 | /* Return nonzero if input events are pending. */ |
284f4730 | 9445 | |
dfcf069d | 9446 | int |
284f4730 JB |
9447 | detect_input_pending () |
9448 | { | |
9449 | if (!input_pending) | |
d9d4c147 KH |
9450 | get_input_pending (&input_pending, 0); |
9451 | ||
9452 | return input_pending; | |
9453 | } | |
9454 | ||
b1878f45 | 9455 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9456 | |
dfcf069d | 9457 | int |
87dd9b9b RS |
9458 | detect_input_pending_run_timers (do_display) |
9459 | int do_display; | |
d9d4c147 | 9460 | { |
87dd9b9b RS |
9461 | int old_timers_run = timers_run; |
9462 | ||
d9d4c147 KH |
9463 | if (!input_pending) |
9464 | get_input_pending (&input_pending, 1); | |
284f4730 | 9465 | |
87dd9b9b | 9466 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9467 | { |
3007ebfb | 9468 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9469 | /* The following fixes a bug when using lazy-lock with |
9470 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9471 | from an idle timer function. The symptom of the bug is that | |
9472 | the cursor sometimes doesn't become visible until the next X | |
9473 | event is processed. --gerd. */ | |
9474 | if (rif) | |
9475 | rif->flush_display (NULL); | |
9476 | } | |
87dd9b9b | 9477 | |
284f4730 JB |
9478 | return input_pending; |
9479 | } | |
9480 | ||
ffd56f97 JB |
9481 | /* This is called in some cases before a possible quit. |
9482 | It cases the next call to detect_input_pending to recompute input_pending. | |
9483 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9484 | |
9485 | void | |
ffd56f97 JB |
9486 | clear_input_pending () |
9487 | { | |
9488 | input_pending = 0; | |
9489 | } | |
9490 | ||
b1878f45 RS |
9491 | /* Return nonzero if there are pending requeued events. |
9492 | This isn't used yet. The hope is to make wait_reading_process_input | |
9493 | call it, and return return if it runs Lisp code that unreads something. | |
9494 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
9495 | to do in that case. It isn't trivial. */ | |
9496 | ||
dfcf069d | 9497 | int |
b1878f45 RS |
9498 | requeued_events_pending_p () |
9499 | { | |
9500 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9501 | } | |
9502 | ||
9503 | ||
284f4730 JB |
9504 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
9505 | "T if command input is currently available with no waiting.\n\ | |
9506 | Actually, the value is nil only if we can be sure that no input is available.") | |
9507 | () | |
9508 | { | |
24597608 | 9509 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9510 | return (Qt); |
9511 | ||
d9d4c147 KH |
9512 | get_input_pending (&input_pending, 1); |
9513 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
9514 | } |
9515 | ||
9516 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 9517 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
9518 | () |
9519 | { | |
5160df46 | 9520 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9521 | Lisp_Object val; |
9522 | ||
9523 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9524 | return Fvector (total_keys, keys); |
284f4730 JB |
9525 | else |
9526 | { | |
5160df46 JB |
9527 | val = Fvector (NUM_RECENT_KEYS, keys); |
9528 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9529 | XVECTOR (val)->contents, |
9530 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9531 | bcopy (keys, |
284f4730 JB |
9532 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9533 | recent_keys_index * sizeof (Lisp_Object)); | |
9534 | return val; | |
9535 | } | |
9536 | } | |
9537 | ||
9538 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
9539 | "Return the key sequence that invoked this command.\n\ |
9540 | The value is a string or a vector.") | |
284f4730 JB |
9541 | () |
9542 | { | |
86e5706b RS |
9543 | return make_event_array (this_command_key_count, |
9544 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9545 | } |
9546 | ||
e39da3d7 RS |
9547 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
9548 | "Return the key sequence that invoked this command, as a vector.") | |
9549 | () | |
9550 | { | |
9551 | return Fvector (this_command_key_count, | |
9552 | XVECTOR (this_command_keys)->contents); | |
9553 | } | |
9554 | ||
6321824f RS |
9555 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9556 | Sthis_single_command_keys, 0, 0, 0, | |
9557 | "Return the key sequence that invoked this command.\n\ | |
9558 | Unlike `this-command-keys', this function's value\n\ | |
9559 | does not include prefix arguments.\n\ | |
e39da3d7 | 9560 | The value is always a vector.") |
6321824f RS |
9561 | () |
9562 | { | |
e39da3d7 RS |
9563 | return Fvector (this_command_key_count |
9564 | - this_single_command_key_start, | |
9565 | (XVECTOR (this_command_keys)->contents | |
9566 | + this_single_command_key_start)); | |
6321824f RS |
9567 | } |
9568 | ||
7d18f9ae RS |
9569 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9570 | Sthis_single_command_raw_keys, 0, 0, 0, | |
9571 | "Return the raw events that were read for this command.\n\ | |
9572 | Unlike `this-single-command-keys', this function's value\n\ | |
9573 | shows the events before all translations (except for input methods).\n\ | |
9574 | The value is always a vector.") | |
9575 | () | |
9576 | { | |
9577 | return Fvector (raw_keybuf_count, | |
9578 | (XVECTOR (raw_keybuf)->contents)); | |
9579 | } | |
9580 | ||
71918b75 RS |
9581 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
9582 | Sreset_this_command_lengths, 0, 0, 0, | |
9583 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
9584 | \n\ | |
9585 | `universal-argument-other-key' rereads the event just typed.\n\ | |
9586 | It then gets translated through `function-key-map'.\n\ | |
9587 | The translated event gets included in the echo area and in\n\ | |
9588 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
9589 | That is not right.\n\ | |
9590 | \n\ | |
9591 | Calling this function directs the translated event to replace\n\ | |
9592 | the original event, so that only one version of the event actually\n\ | |
9593 | appears in the echo area and in the value of `this-command-keys.'.") | |
9594 | () | |
9595 | { | |
9596 | before_command_restore_flag = 1; | |
9597 | before_command_key_count_1 = before_command_key_count; | |
9598 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9599 | return Qnil; |
71918b75 RS |
9600 | } |
9601 | ||
82e6e5af RS |
9602 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
9603 | Sclear_this_command_keys, 0, 0, 0, | |
e27b53f6 GM |
9604 | "Clear out the vector that `this-command-keys' returns.\n\ |
9605 | Clear vector containing last 100 events.") | |
82e6e5af RS |
9606 | () |
9607 | { | |
fb0dde6c GM |
9608 | int i; |
9609 | ||
82e6e5af | 9610 | this_command_key_count = 0; |
fb0dde6c GM |
9611 | |
9612 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9613 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9614 | total_keys = 0; | |
9615 | recent_keys_index = 0; | |
82e6e5af RS |
9616 | return Qnil; |
9617 | } | |
9618 | ||
284f4730 JB |
9619 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
9620 | "Return the current depth in recursive edits.") | |
9621 | () | |
9622 | { | |
9623 | Lisp_Object temp; | |
bb9e9bed | 9624 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9625 | return temp; |
9626 | } | |
9627 | ||
9628 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
9629 | "FOpen dribble file: ", | |
9b2471df RS |
9630 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
9631 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
9632 | (file) |
9633 | Lisp_Object file; | |
9634 | { | |
6cb52def | 9635 | if (dribble) |
284f4730 | 9636 | { |
6cb52def KH |
9637 | fclose (dribble); |
9638 | dribble = 0; | |
284f4730 | 9639 | } |
6cb52def | 9640 | if (!NILP (file)) |
284f4730 JB |
9641 | { |
9642 | file = Fexpand_file_name (file, Qnil); | |
9643 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
9644 | if (dribble == 0) |
9645 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9646 | } |
9647 | return Qnil; | |
9648 | } | |
9649 | ||
9650 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
9651 | "Discard the contents of the terminal input buffer.\n\ | |
9652 | Also cancel any kbd macro being defined.") | |
9653 | () | |
9654 | { | |
c5fdd383 | 9655 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9656 | update_mode_lines++; |
9657 | ||
24597608 | 9658 | Vunread_command_events = Qnil; |
86e5706b | 9659 | unread_command_char = -1; |
284f4730 JB |
9660 | |
9661 | discard_tty_input (); | |
9662 | ||
7ee32cda | 9663 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 9664 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
9665 | input_pending = 0; |
9666 | ||
9667 | return Qnil; | |
9668 | } | |
9669 | \f | |
9670 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
9671 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
9672 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
9673 | control, run a subshell instead.\n\n\ | |
284f4730 | 9674 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
9675 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
9676 | \n\ | |
bbdc2092 RS |
9677 | Before suspending, run the normal hook `suspend-hook'.\n\ |
9678 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
9679 | \n\ |
9680 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 9681 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
9682 | (stuffstring) |
9683 | Lisp_Object stuffstring; | |
9684 | { | |
284f4730 JB |
9685 | int count = specpdl_ptr - specpdl; |
9686 | int old_height, old_width; | |
9687 | int width, height; | |
03cee6ae | 9688 | struct gcpro gcpro1; |
284f4730 JB |
9689 | |
9690 | if (!NILP (stuffstring)) | |
9691 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 9692 | |
1e95ed28 JB |
9693 | /* Run the functions in suspend-hook. */ |
9694 | if (!NILP (Vrun_hooks)) | |
9695 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9696 | |
b7d2ebbf | 9697 | GCPRO1 (stuffstring); |
ff11dfa1 | 9698 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9699 | reset_sys_modes (); |
9700 | /* sys_suspend can get an error if it tries to fork a subshell | |
9701 | and the system resources aren't available for that. */ | |
91a0da02 | 9702 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9703 | Qnil); |
284f4730 | 9704 | stuff_buffered_input (stuffstring); |
8026024c KH |
9705 | if (cannot_suspend) |
9706 | sys_subshell (); | |
9707 | else | |
9708 | sys_suspend (); | |
284f4730 JB |
9709 | unbind_to (count, Qnil); |
9710 | ||
9711 | /* Check if terminal/window size has changed. | |
9712 | Note that this is not useful when we are running directly | |
9713 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9714 | get_frame_size (&width, &height); |
284f4730 | 9715 | if (width != old_width || height != old_height) |
788f89eb | 9716 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9717 | |
1e95ed28 | 9718 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9719 | if (!NILP (Vrun_hooks)) |
9720 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9721 | |
284f4730 JB |
9722 | UNGCPRO; |
9723 | return Qnil; | |
9724 | } | |
9725 | ||
9726 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9727 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9728 | |
07a59269 | 9729 | void |
284f4730 JB |
9730 | stuff_buffered_input (stuffstring) |
9731 | Lisp_Object stuffstring; | |
9732 | { | |
284f4730 | 9733 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9734 | #ifdef BSD_SYSTEM |
284f4730 | 9735 | #ifndef BSD4_1 |
612b78ef | 9736 | register unsigned char *p; |
612b78ef | 9737 | |
8c18cbfb | 9738 | if (STRINGP (stuffstring)) |
284f4730 JB |
9739 | { |
9740 | register int count; | |
9741 | ||
9742 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9743 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9744 | while (count-- > 0) |
9745 | stuff_char (*p++); | |
9746 | stuff_char ('\n'); | |
9747 | } | |
da8f7368 | 9748 | |
284f4730 | 9749 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 9750 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9751 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9752 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9753 | { |
da8f7368 GM |
9754 | int idx; |
9755 | ||
beecf6a1 KH |
9756 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9757 | kbd_fetch_ptr = kbd_buffer; | |
9758 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9759 | stuff_char (kbd_fetch_ptr->code); | |
da8f7368 | 9760 | |
beecf6a1 | 9761 | kbd_fetch_ptr->kind = no_event; |
da8f7368 GM |
9762 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
9763 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
9764 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 9765 | } |
da8f7368 | 9766 | |
284f4730 JB |
9767 | input_pending = 0; |
9768 | #endif | |
6df54671 | 9769 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9770 | } |
9771 | \f | |
dfcf069d | 9772 | void |
ffd56f97 JB |
9773 | set_waiting_for_input (time_to_clear) |
9774 | EMACS_TIME *time_to_clear; | |
284f4730 | 9775 | { |
ffd56f97 | 9776 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9777 | |
9778 | /* Tell interrupt_signal to throw back to read_char, */ | |
9779 | waiting_for_input = 1; | |
9780 | ||
9781 | /* If interrupt_signal was called before and buffered a C-g, | |
9782 | make it run again now, to avoid timing error. */ | |
9783 | if (!NILP (Vquit_flag)) | |
9784 | quit_throw_to_read_char (); | |
284f4730 JB |
9785 | } |
9786 | ||
07a59269 | 9787 | void |
284f4730 JB |
9788 | clear_waiting_for_input () |
9789 | { | |
9790 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9791 | waiting_for_input = 0; | |
ffd56f97 | 9792 | input_available_clear_time = 0; |
284f4730 JB |
9793 | } |
9794 | ||
9795 | /* This routine is called at interrupt level in response to C-G. | |
d4e68eea GM |
9796 | |
9797 | If interrupt_input, this is the handler for SIGINT. Otherwise, it | |
9798 | is called from kbd_buffer_store_event, in handling SIGIO or | |
9799 | SIGTINT. | |
284f4730 | 9800 | |
d4e68eea GM |
9801 | If `waiting_for_input' is non zero, then unless `echoing' is |
9802 | nonzero, immediately throw back to read_char. | |
284f4730 | 9803 | |
d4e68eea GM |
9804 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
9805 | eval to throw, when it gets a chance. If quit-flag is already | |
9806 | non-nil, it stops the job right away. */ | |
284f4730 JB |
9807 | |
9808 | SIGTYPE | |
91c049d4 RS |
9809 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9810 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9811 | { |
9812 | char c; | |
9813 | /* Must preserve main program's value of errno. */ | |
9814 | int old_errno = errno; | |
788f89eb | 9815 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9816 | |
5970a8cb | 9817 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9818 | if (!read_socket_hook && NILP (Vwindow_system)) |
9819 | { | |
9820 | /* USG systems forget handlers when they are used; | |
9821 | must reestablish each time */ | |
9822 | signal (SIGINT, interrupt_signal); | |
9823 | signal (SIGQUIT, interrupt_signal); | |
9824 | } | |
284f4730 JB |
9825 | #endif /* USG */ |
9826 | ||
9827 | cancel_echoing (); | |
9828 | ||
31e4e97b | 9829 | if (!NILP (Vquit_flag) |
788f89eb | 9830 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9831 | { |
31e4e97b EZ |
9832 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9833 | another SIGINT, it might be harmful due to non-reentrancy | |
9834 | in I/O functions. */ | |
9835 | sigblock (sigmask (SIGINT)); | |
9836 | ||
284f4730 JB |
9837 | fflush (stdout); |
9838 | reset_sys_modes (); | |
31e4e97b | 9839 | |
284f4730 JB |
9840 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9841 | /* | |
9842 | * On systems which can suspend the current process and return to the original | |
9843 | * shell, this command causes the user to end up back at the shell. | |
9844 | * The "Auto-save" and "Abort" questions are not asked until | |
9845 | * the user elects to return to emacs, at which point he can save the current | |
9846 | * job and either dump core or continue. | |
9847 | */ | |
9848 | sys_suspend (); | |
9849 | #else | |
9850 | #ifdef VMS | |
9851 | if (sys_suspend () == -1) | |
9852 | { | |
9853 | printf ("Not running as a subprocess;\n"); | |
9854 | printf ("you can continue or abort.\n"); | |
9855 | } | |
9856 | #else /* not VMS */ | |
9857 | /* Perhaps should really fork an inferior shell? | |
9858 | But that would not provide any way to get back | |
9859 | to the original shell, ever. */ | |
9860 | printf ("No support for stopping a process on this operating system;\n"); | |
9861 | printf ("you can continue or abort.\n"); | |
9862 | #endif /* not VMS */ | |
9863 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9864 | #ifdef MSDOS |
9865 | /* We must remain inside the screen area when the internal terminal | |
9866 | is used. Note that [Enter] is not echoed by dos. */ | |
9867 | cursor_to (0, 0); | |
9868 | #endif | |
118d6ca9 RS |
9869 | /* It doesn't work to autosave while GC is in progress; |
9870 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9871 | if (!gc_in_progress) | |
9fd7d808 | 9872 | { |
118d6ca9 RS |
9873 | printf ("Auto-save? (y or n) "); |
9874 | fflush (stdout); | |
9875 | if (((c = getchar ()) & ~040) == 'Y') | |
9876 | { | |
9877 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9878 | #ifdef MSDOS |
118d6ca9 | 9879 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9880 | #else /* not MSDOS */ |
118d6ca9 | 9881 | printf ("Auto-save done\n"); |
80e4aa30 | 9882 | #endif /* not MSDOS */ |
118d6ca9 RS |
9883 | } |
9884 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9885 | } |
118d6ca9 RS |
9886 | else |
9887 | { | |
9888 | /* During GC, it must be safe to reenable quitting again. */ | |
9889 | Vinhibit_quit = Qnil; | |
9890 | #ifdef MSDOS | |
9891 | printf ("\r\n"); | |
9892 | #endif /* not MSDOS */ | |
9893 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9894 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9895 | fflush (stdout); | |
9896 | } | |
9897 | ||
80e4aa30 RS |
9898 | #ifdef MSDOS |
9899 | printf ("\r\nAbort? (y or n) "); | |
9900 | #else /* not MSDOS */ | |
284f4730 JB |
9901 | #ifdef VMS |
9902 | printf ("Abort (and enter debugger)? (y or n) "); | |
9903 | #else /* not VMS */ | |
9904 | printf ("Abort (and dump core)? (y or n) "); | |
9905 | #endif /* not VMS */ | |
80e4aa30 | 9906 | #endif /* not MSDOS */ |
284f4730 JB |
9907 | fflush (stdout); |
9908 | if (((c = getchar ()) & ~040) == 'Y') | |
9909 | abort (); | |
9910 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9911 | #ifdef MSDOS |
9912 | printf ("\r\nContinuing...\r\n"); | |
9913 | #else /* not MSDOS */ | |
284f4730 | 9914 | printf ("Continuing...\n"); |
80e4aa30 | 9915 | #endif /* not MSDOS */ |
284f4730 JB |
9916 | fflush (stdout); |
9917 | init_sys_modes (); | |
31e4e97b | 9918 | sigfree (); |
284f4730 JB |
9919 | } |
9920 | else | |
9921 | { | |
9922 | /* If executing a function that wants to be interrupted out of | |
9923 | and the user has not deferred quitting by binding `inhibit-quit' | |
9924 | then quit right away. */ | |
9925 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9926 | { | |
e39da3d7 RS |
9927 | struct gl_state_s saved; |
9928 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9929 | ||
284f4730 JB |
9930 | immediate_quit = 0; |
9931 | sigfree (); | |
e39da3d7 RS |
9932 | saved = gl_state; |
9933 | GCPRO4 (saved.object, saved.global_code, | |
9934 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9935 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9936 | gl_state = saved; |
9937 | UNGCPRO; | |
284f4730 JB |
9938 | } |
9939 | else | |
9940 | /* Else request quit when it's safe */ | |
9941 | Vquit_flag = Qt; | |
9942 | } | |
9943 | ||
9944 | if (waiting_for_input && !echoing) | |
9945 | quit_throw_to_read_char (); | |
9946 | ||
9947 | errno = old_errno; | |
9948 | } | |
9949 | ||
9950 | /* Handle a C-g by making read_char return C-g. */ | |
9951 | ||
07a59269 | 9952 | void |
284f4730 JB |
9953 | quit_throw_to_read_char () |
9954 | { | |
284f4730 JB |
9955 | sigfree (); |
9956 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9957 | clear_waiting_for_input (); |
284f4730 JB |
9958 | input_pending = 0; |
9959 | ||
24597608 | 9960 | Vunread_command_events = Qnil; |
86e5706b | 9961 | unread_command_char = -1; |
284f4730 | 9962 | |
087feab3 RS |
9963 | #if 0 /* Currently, sit_for is called from read_char without turning |
9964 | off polling. And that can call set_waiting_for_input. | |
9965 | It seems to be harmless. */ | |
e6b01c14 JB |
9966 | #ifdef POLL_FOR_INPUT |
9967 | /* May be > 1 if in recursive minibuffer. */ | |
9968 | if (poll_suppress_count == 0) | |
9969 | abort (); | |
9970 | #endif | |
087feab3 | 9971 | #endif |
4c52b668 | 9972 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9973 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 9974 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 9975 | 0, 0); |
e6b01c14 | 9976 | |
284f4730 JB |
9977 | _longjmp (getcjmp, 1); |
9978 | } | |
9979 | \f | |
9980 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9981 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9982 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9983 | nil means use CBREAK mode.\n\ | |
9984 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9985 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9986 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9987 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9988 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9989 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9990 | See also `current-input-mode'.") | |
284f4730 JB |
9991 | (interrupt, flow, meta, quit) |
9992 | Lisp_Object interrupt, flow, meta, quit; | |
9993 | { | |
9994 | if (!NILP (quit) | |
8c18cbfb | 9995 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9996 | error ("set-input-mode: QUIT must be an ASCII character"); |
9997 | ||
9998 | #ifdef POLL_FOR_INPUT | |
9999 | stop_polling (); | |
10000 | #endif | |
284f4730 | 10001 | |
07de30b9 | 10002 | #ifndef DOS_NT |
2ee250ec | 10003 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10004 | reset_sys_modes (); |
2ee250ec RS |
10005 | #endif |
10006 | ||
284f4730 JB |
10007 | #ifdef SIGIO |
10008 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10009 | if (read_socket_hook) |
9a0f60bb KH |
10010 | { |
10011 | /* When using X, don't give the user a real choice, | |
10012 | because we haven't implemented the mechanisms to support it. */ | |
10013 | #ifdef NO_SOCK_SIGIO | |
10014 | interrupt_input = 0; | |
10015 | #else /* not NO_SOCK_SIGIO */ | |
10016 | interrupt_input = 1; | |
284f4730 | 10017 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10018 | } |
10019 | else | |
284f4730 JB |
10020 | interrupt_input = !NILP (interrupt); |
10021 | #else /* not SIGIO */ | |
10022 | interrupt_input = 0; | |
10023 | #endif /* not SIGIO */ | |
9a0f60bb | 10024 | |
284f4730 JB |
10025 | /* Our VMS input only works by interrupts, as of now. */ |
10026 | #ifdef VMS | |
10027 | interrupt_input = 1; | |
10028 | #endif | |
9a0f60bb | 10029 | |
284f4730 | 10030 | flow_control = !NILP (flow); |
b04904fb RS |
10031 | if (NILP (meta)) |
10032 | meta_key = 0; | |
10033 | else if (EQ (meta, Qt)) | |
10034 | meta_key = 1; | |
10035 | else | |
10036 | meta_key = 2; | |
284f4730 JB |
10037 | if (!NILP (quit)) |
10038 | /* Don't let this value be out of range. */ | |
10039 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10040 | ||
07de30b9 | 10041 | #ifndef DOS_NT |
284f4730 | 10042 | init_sys_modes (); |
2ee250ec | 10043 | #endif |
34f04431 RS |
10044 | |
10045 | #ifdef POLL_FOR_INPUT | |
10046 | poll_suppress_count = 1; | |
10047 | start_polling (); | |
10048 | #endif | |
284f4730 JB |
10049 | return Qnil; |
10050 | } | |
80645119 JB |
10051 | |
10052 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
10053 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
10054 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
10055 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
10056 | nil, Emacs is using CBREAK mode.\n\ | |
10057 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
10058 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
10059 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
10060 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
10061 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
10062 | all 8 bits as the character code.\n\ | |
80645119 JB |
10063 | QUIT is the character Emacs currently uses to quit.\n\ |
10064 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 10065 | `set-input-mode'.") |
80645119 JB |
10066 | () |
10067 | { | |
10068 | Lisp_Object val[4]; | |
10069 | ||
10070 | val[0] = interrupt_input ? Qt : Qnil; | |
10071 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10072 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10073 | XSETFASTINT (val[3], quit_char); |
80645119 | 10074 | |
bf673a7a | 10075 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10076 | } |
10077 | ||
284f4730 | 10078 | \f |
6c6083a9 | 10079 | /* |
c5fdd383 | 10080 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10081 | */ |
10082 | void | |
c5fdd383 KH |
10083 | init_kboard (kb) |
10084 | KBOARD *kb; | |
6c6083a9 | 10085 | { |
217258d5 | 10086 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10087 | kb->Vlast_command = Qnil; |
75045dcb | 10088 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10089 | kb->Vprefix_arg = Qnil; |
75045dcb | 10090 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10091 | kb->kbd_queue = Qnil; |
10092 | kb->kbd_queue_has_data = 0; | |
10093 | kb->immediate_echo = 0; | |
10094 | kb->echoptr = kb->echobuf; | |
10095 | kb->echo_after_prompt = -1; | |
10096 | kb->kbd_macro_buffer = 0; | |
10097 | kb->kbd_macro_bufsize = 0; | |
10098 | kb->defining_kbd_macro = Qnil; | |
10099 | kb->Vlast_kbd_macro = Qnil; | |
10100 | kb->reference_count = 0; | |
7c97ffdc | 10101 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10102 | kb->system_key_syms = Qnil; |
9ba47203 | 10103 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10104 | } |
10105 | ||
10106 | /* | |
c5fdd383 | 10107 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10108 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10109 | * it a second time. |
10110 | */ | |
e50b8090 | 10111 | static void |
c5fdd383 KH |
10112 | wipe_kboard (kb) |
10113 | KBOARD *kb; | |
6c6083a9 | 10114 | { |
c5fdd383 KH |
10115 | if (kb->kbd_macro_buffer) |
10116 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10117 | } |
10118 | ||
e50b8090 | 10119 | #ifdef MULTI_KBOARD |
a122a38e GM |
10120 | |
10121 | /* Free KB and memory referenced from it. */ | |
10122 | ||
e50b8090 KH |
10123 | void |
10124 | delete_kboard (kb) | |
a122a38e | 10125 | KBOARD *kb; |
e50b8090 KH |
10126 | { |
10127 | KBOARD **kbp; | |
a122a38e | 10128 | |
e50b8090 KH |
10129 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10130 | if (*kbp == NULL) | |
10131 | abort (); | |
10132 | *kbp = kb->next_kboard; | |
a122a38e GM |
10133 | |
10134 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10135 | if (kb == current_kboard |
10136 | && FRAMEP (selected_frame) | |
10137 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10138 | { |
18f534df | 10139 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10140 | if (current_kboard == kb) |
10141 | abort (); | |
10142 | } | |
10143 | ||
e50b8090 KH |
10144 | wipe_kboard (kb); |
10145 | xfree (kb); | |
10146 | } | |
a122a38e GM |
10147 | |
10148 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10149 | |
dfcf069d | 10150 | void |
284f4730 JB |
10151 | init_keyboard () |
10152 | { | |
284f4730 JB |
10153 | /* This is correct before outermost invocation of the editor loop */ |
10154 | command_loop_level = -1; | |
10155 | immediate_quit = 0; | |
10156 | quit_char = Ctl ('g'); | |
24597608 | 10157 | Vunread_command_events = Qnil; |
86e5706b | 10158 | unread_command_char = -1; |
87dd9b9b | 10159 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10160 | total_keys = 0; |
9deb415a | 10161 | recent_keys_index = 0; |
beecf6a1 KH |
10162 | kbd_fetch_ptr = kbd_buffer; |
10163 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10164 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10165 | #ifdef HAVE_MOUSE |
a9d77f1f | 10166 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10167 | #endif |
284f4730 JB |
10168 | input_pending = 0; |
10169 | ||
4c52b668 KH |
10170 | /* This means that command_loop_1 won't try to select anything the first |
10171 | time through. */ | |
10172 | internal_last_event_frame = Qnil; | |
10173 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10174 | |
c5fdd383 | 10175 | #ifdef MULTI_KBOARD |
aaca43a1 | 10176 | current_kboard = initial_kboard; |
6c6083a9 | 10177 | #endif |
aaca43a1 | 10178 | wipe_kboard (current_kboard); |
c5fdd383 | 10179 | init_kboard (current_kboard); |
07d2b8de | 10180 | |
7a80a6f6 | 10181 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10182 | { |
10183 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10184 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10185 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10186 | SIGQUIT and we can't tell which one it will give us. */ | |
10187 | signal (SIGQUIT, interrupt_signal); | |
10188 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10189 | } |
284f4730 JB |
10190 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10191 | #ifdef SIGIO | |
7a80a6f6 RS |
10192 | if (!noninteractive) |
10193 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10194 | #endif /* SIGIO */ |
284f4730 JB |
10195 | |
10196 | /* Use interrupt input by default, if it works and noninterrupt input | |
10197 | has deficiencies. */ | |
10198 | ||
10199 | #ifdef INTERRUPT_INPUT | |
10200 | interrupt_input = 1; | |
10201 | #else | |
10202 | interrupt_input = 0; | |
10203 | #endif | |
10204 | ||
10205 | /* Our VMS input only works by interrupts, as of now. */ | |
10206 | #ifdef VMS | |
10207 | interrupt_input = 1; | |
10208 | #endif | |
10209 | ||
10210 | sigfree (); | |
10211 | dribble = 0; | |
10212 | ||
10213 | if (keyboard_init_hook) | |
10214 | (*keyboard_init_hook) (); | |
10215 | ||
10216 | #ifdef POLL_FOR_INPUT | |
10217 | poll_suppress_count = 1; | |
10218 | start_polling (); | |
10219 | #endif | |
10220 | } | |
10221 | ||
df0f2ba1 | 10222 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10223 | event header symbols and put properties on them. */ |
10224 | struct event_head { | |
10225 | Lisp_Object *var; | |
10226 | char *name; | |
10227 | Lisp_Object *kind; | |
10228 | }; | |
10229 | ||
10230 | struct event_head head_table[] = { | |
7b4aedb9 | 10231 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 10232 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 10233 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 10234 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
10235 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
10236 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
10237 | }; |
10238 | ||
dfcf069d | 10239 | void |
284f4730 JB |
10240 | syms_of_keyboard () |
10241 | { | |
f0c1cc56 GM |
10242 | Vpre_help_message = Qnil; |
10243 | staticpro (&Vpre_help_message); | |
10244 | ||
8e1e4240 GM |
10245 | Vlispy_mouse_stem = build_string ("mouse"); |
10246 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10247 | |
9ea173e8 | 10248 | /* Tool-bars. */ |
7ee32cda GM |
10249 | QCimage = intern (":image"); |
10250 | staticpro (&QCimage); | |
10251 | ||
10252 | staticpro (&Qhelp_echo); | |
10253 | Qhelp_echo = intern ("help-echo"); | |
10254 | ||
e8886a1d RS |
10255 | staticpro (&item_properties); |
10256 | item_properties = Qnil; | |
10257 | ||
9ea173e8 GM |
10258 | staticpro (&tool_bar_item_properties); |
10259 | tool_bar_item_properties = Qnil; | |
10260 | staticpro (&tool_bar_items_vector); | |
10261 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10262 | |
d5eecefb RS |
10263 | staticpro (&real_this_command); |
10264 | real_this_command = Qnil; | |
10265 | ||
d925fb39 RS |
10266 | Qtimer_event_handler = intern ("timer-event-handler"); |
10267 | staticpro (&Qtimer_event_handler); | |
10268 | ||
2e894dab RS |
10269 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10270 | staticpro (&Qdisabled_command_hook); | |
10271 | ||
284f4730 JB |
10272 | Qself_insert_command = intern ("self-insert-command"); |
10273 | staticpro (&Qself_insert_command); | |
10274 | ||
10275 | Qforward_char = intern ("forward-char"); | |
10276 | staticpro (&Qforward_char); | |
10277 | ||
10278 | Qbackward_char = intern ("backward-char"); | |
10279 | staticpro (&Qbackward_char); | |
10280 | ||
10281 | Qdisabled = intern ("disabled"); | |
10282 | staticpro (&Qdisabled); | |
10283 | ||
e58aa385 RS |
10284 | Qundefined = intern ("undefined"); |
10285 | staticpro (&Qundefined); | |
10286 | ||
86e5706b RS |
10287 | Qpre_command_hook = intern ("pre-command-hook"); |
10288 | staticpro (&Qpre_command_hook); | |
10289 | ||
10290 | Qpost_command_hook = intern ("post-command-hook"); | |
10291 | staticpro (&Qpost_command_hook); | |
10292 | ||
59aadc81 RS |
10293 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10294 | staticpro (&Qpost_command_idle_hook); | |
10295 | ||
3ef14e46 RS |
10296 | Qdeferred_action_function = intern ("deferred-action-function"); |
10297 | staticpro (&Qdeferred_action_function); | |
10298 | ||
40932d1a RS |
10299 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10300 | staticpro (&Qcommand_hook_internal); | |
10301 | ||
284f4730 JB |
10302 | Qfunction_key = intern ("function-key"); |
10303 | staticpro (&Qfunction_key); | |
13b5e56c | 10304 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10305 | staticpro (&Qmouse_click); |
07de30b9 GV |
10306 | #ifdef WINDOWSNT |
10307 | Qmouse_wheel = intern ("mouse-wheel"); | |
10308 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
10309 | Qlanguage_change = intern ("language-change"); |
10310 | staticpro (&Qlanguage_change); | |
07de30b9 | 10311 | #endif |
a24dc617 RS |
10312 | Qdrag_n_drop = intern ("drag-n-drop"); |
10313 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10314 | |
5bf68f6e AS |
10315 | Qusr1_signal = intern ("usr1-signal"); |
10316 | staticpro (&Qusr1_signal); | |
10317 | Qusr2_signal = intern ("usr2-signal"); | |
10318 | staticpro (&Qusr2_signal); | |
10319 | ||
598a9fa7 JB |
10320 | Qmenu_enable = intern ("menu-enable"); |
10321 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10322 | Qmenu_alias = intern ("menu-alias"); |
10323 | staticpro (&Qmenu_alias); | |
10324 | QCenable = intern (":enable"); | |
10325 | staticpro (&QCenable); | |
10326 | QCvisible = intern (":visible"); | |
10327 | staticpro (&QCvisible); | |
7ee32cda GM |
10328 | QChelp = intern (":help"); |
10329 | staticpro (&QChelp); | |
e8886a1d RS |
10330 | QCfilter = intern (":filter"); |
10331 | staticpro (&QCfilter); | |
10332 | QCbutton = intern (":button"); | |
10333 | staticpro (&QCbutton); | |
74c1de23 RS |
10334 | QCkeys = intern (":keys"); |
10335 | staticpro (&QCkeys); | |
10336 | QCkey_sequence = intern (":key-sequence"); | |
10337 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10338 | QCtoggle = intern (":toggle"); |
10339 | staticpro (&QCtoggle); | |
10340 | QCradio = intern (":radio"); | |
10341 | staticpro (&QCradio); | |
598a9fa7 | 10342 | |
284f4730 JB |
10343 | Qmode_line = intern ("mode-line"); |
10344 | staticpro (&Qmode_line); | |
e5d77022 JB |
10345 | Qvertical_line = intern ("vertical-line"); |
10346 | staticpro (&Qvertical_line); | |
3c370943 JB |
10347 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10348 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10349 | Qmenu_bar = intern ("menu-bar"); |
10350 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10351 | |
10352 | Qabove_handle = intern ("above-handle"); | |
10353 | staticpro (&Qabove_handle); | |
10354 | Qhandle = intern ("handle"); | |
10355 | staticpro (&Qhandle); | |
10356 | Qbelow_handle = intern ("below-handle"); | |
10357 | staticpro (&Qbelow_handle); | |
db08707d RS |
10358 | Qup = intern ("up"); |
10359 | staticpro (&Qup); | |
10360 | Qdown = intern ("down"); | |
10361 | staticpro (&Qdown); | |
7ee32cda GM |
10362 | Qtop = intern ("top"); |
10363 | staticpro (&Qtop); | |
10364 | Qbottom = intern ("bottom"); | |
10365 | staticpro (&Qbottom); | |
10366 | Qend_scroll = intern ("end-scroll"); | |
10367 | staticpro (&Qend_scroll); | |
eef28553 SM |
10368 | Qratio = intern ("ratio"); |
10369 | staticpro (&Qratio); | |
284f4730 | 10370 | |
cd21b839 | 10371 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10372 | staticpro (&Qevent_kind); |
88cb0656 JB |
10373 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10374 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10375 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10376 | staticpro (&Qevent_symbol_element_mask); | |
10377 | Qmodifier_cache = intern ("modifier-cache"); | |
10378 | staticpro (&Qmodifier_cache); | |
284f4730 | 10379 | |
48e416d4 RS |
10380 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10381 | staticpro (&Qrecompute_lucid_menubar); | |
10382 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10383 | staticpro (&Qactivate_menubar_hook); | |
10384 | ||
f4eef8b4 RS |
10385 | Qpolling_period = intern ("polling-period"); |
10386 | staticpro (&Qpolling_period); | |
10387 | ||
7d18f9ae RS |
10388 | Qinput_method_function = intern ("input-method-function"); |
10389 | staticpro (&Qinput_method_function); | |
10390 | ||
d5eecefb RS |
10391 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10392 | staticpro (&Qinput_method_exit_on_first_char); | |
10393 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10394 | staticpro (&Qinput_method_use_echo_area); | |
10395 | ||
10396 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10397 | Fset (Qinput_method_use_echo_area, Qnil); | |
10398 | ||
e18dfbf4 KR |
10399 | last_point_position_buffer = Qnil; |
10400 | ||
284f4730 JB |
10401 | { |
10402 | struct event_head *p; | |
10403 | ||
10404 | for (p = head_table; | |
10405 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10406 | p++) | |
10407 | { | |
10408 | *p->var = intern (p->name); | |
10409 | staticpro (p->var); | |
10410 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10411 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10412 | } |
10413 | } | |
10414 | ||
8e1e4240 | 10415 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10416 | staticpro (&button_down_location); |
8e1e4240 GM |
10417 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10418 | staticpro (&mouse_syms); | |
88cb0656 JB |
10419 | |
10420 | { | |
10421 | int i; | |
10422 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10423 | ||
10424 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10425 | for (i = 0; i < len; i++) | |
86e5706b RS |
10426 | if (modifier_names[i]) |
10427 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10428 | staticpro (&modifier_symbols); |
10429 | } | |
10430 | ||
9deb415a JB |
10431 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10432 | staticpro (&recent_keys); | |
10433 | ||
6569cc8d | 10434 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10435 | staticpro (&this_command_keys); |
6569cc8d | 10436 | |
7d18f9ae RS |
10437 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10438 | staticpro (&raw_keybuf); | |
10439 | ||
03b4122a BF |
10440 | Qextended_command_history = intern ("extended-command-history"); |
10441 | Fset (Qextended_command_history, Qnil); | |
10442 | staticpro (&Qextended_command_history); | |
10443 | ||
da8f7368 GM |
10444 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10445 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10446 | |
24597608 RS |
10447 | accent_key_syms = Qnil; |
10448 | staticpro (&accent_key_syms); | |
10449 | ||
284f4730 JB |
10450 | func_key_syms = Qnil; |
10451 | staticpro (&func_key_syms); | |
10452 | ||
07de30b9 GV |
10453 | #ifdef WINDOWSNT |
10454 | mouse_wheel_syms = Qnil; | |
10455 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
10456 | |
10457 | drag_n_drop_syms = Qnil; | |
10458 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
10459 | #endif |
10460 | ||
cd21b839 JB |
10461 | unread_switch_frame = Qnil; |
10462 | staticpro (&unread_switch_frame); | |
10463 | ||
fe412364 EN |
10464 | internal_last_event_frame = Qnil; |
10465 | staticpro (&internal_last_event_frame); | |
10466 | ||
10467 | read_key_sequence_cmd = Qnil; | |
10468 | staticpro (&read_key_sequence_cmd); | |
10469 | ||
759860a6 RS |
10470 | menu_bar_one_keymap_changed_items = Qnil; |
10471 | staticpro (&menu_bar_one_keymap_changed_items); | |
10472 | ||
a1706c30 | 10473 | defsubr (&Sevent_convert_list); |
284f4730 | 10474 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10475 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10476 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10477 | #ifdef HAVE_MOUSE |
284f4730 | 10478 | defsubr (&Strack_mouse); |
2eb6bfbe | 10479 | #endif |
284f4730 JB |
10480 | defsubr (&Sinput_pending_p); |
10481 | defsubr (&Scommand_execute); | |
10482 | defsubr (&Srecent_keys); | |
10483 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10484 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10485 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10486 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10487 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10488 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10489 | defsubr (&Ssuspend_emacs); |
10490 | defsubr (&Sabort_recursive_edit); | |
10491 | defsubr (&Sexit_recursive_edit); | |
10492 | defsubr (&Srecursion_depth); | |
10493 | defsubr (&Stop_level); | |
10494 | defsubr (&Sdiscard_input); | |
10495 | defsubr (&Sopen_dribble_file); | |
10496 | defsubr (&Sset_input_mode); | |
80645119 | 10497 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10498 | defsubr (&Sexecute_extended_command); |
10499 | ||
284f4730 | 10500 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
10501 | "Last input event that was part of a command."); |
10502 | ||
186cf719 | 10503 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 10504 | "Last input event that was part of a command."); |
284f4730 | 10505 | |
7d6de002 | 10506 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 10507 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
10508 | Mouse menus give back keys that don't look like mouse events;\n\ |
10509 | this variable holds the actual mouse event that led to the menu,\n\ | |
10510 | so that you can determine whether the command was run by mouse or not."); | |
10511 | ||
284f4730 | 10512 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
10513 | "Last input event."); |
10514 | ||
186cf719 | 10515 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 10516 | "Last input event."); |
284f4730 | 10517 | |
24597608 | 10518 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
10519 | "List of events to be read as the command input.\n\ |
10520 | These events are processed first, before actual keyboard input."); | |
10521 | Vunread_command_events = Qnil; | |
284f4730 | 10522 | |
86e5706b RS |
10523 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
10524 | "If not -1, an object to be read as next command input event."); | |
10525 | ||
7d18f9ae RS |
10526 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
10527 | "List of events to be processed as input by input methods.\n\ | |
10528 | These events are processed after `unread-command-events', but\n\ | |
10529 | before actual keyboard input."); | |
10530 | Vunread_post_input_method_events = Qnil; | |
10531 | ||
10532 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
10533 | "List of events to be processed as input by input methods.\n\ | |
10534 | These events are processed after `unread-command-events', but\n\ | |
10535 | before actual keyboard input."); | |
10536 | Vunread_input_method_events = Qnil; | |
10537 | ||
284f4730 | 10538 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
10539 | "Meta-prefix character code.\n\ |
10540 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 10541 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10542 | |
6c7178b9 | 10543 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
10544 | "The last command executed.\n\ |
10545 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
10546 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
10547 | command.\n\ | |
18f29056 RS |
10548 | \n\ |
10549 | The value `mode-exit' is special; it means that the previous command\n\ | |
10550 | read an event that told it to exit, and it did so and unread that event.\n\ | |
10551 | In other words, the present command is the event that made the previous\n\ | |
10552 | command exit.\n\ | |
10553 | \n\ | |
10554 | The value `kill-region' is special; it means that the previous command\n\ | |
10555 | was a kill command."); | |
284f4730 | 10556 | |
75045dcb RS |
10557 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
10558 | "Same as `last-command', but never altered by Lisp code."); | |
10559 | ||
d5eecefb | 10560 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
10561 | "The command now being executed.\n\ |
10562 | The command can set this variable; whatever is put here\n\ | |
10563 | will be in `last-command' during the following command."); | |
d5eecefb | 10564 | Vthis_command = Qnil; |
284f4730 JB |
10565 | |
10566 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
dace7f4e | 10567 | "*Number of input events between auto-saves.\n\ |
284f4730 JB |
10568 | Zero means disable autosaving due to number of characters typed."); |
10569 | auto_save_interval = 300; | |
10570 | ||
10571 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
10572 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
10573 | Zero or nil means disable auto-saving due to idleness.\n\ |
10574 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 10575 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 10576 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10577 | |
39aab679 | 10578 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
f2647d04 DL |
10579 | "*Nonzero means echo unfinished commands after this many seconds of pause.\n\ |
10580 | The value may be integer or floating point."); | |
39aab679 | 10581 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10582 | |
10583 | DEFVAR_INT ("polling-period", &polling_period, | |
10584 | "*Interval between polling for input during Lisp execution.\n\ | |
10585 | The reason for polling is to make C-g work to stop a running program.\n\ | |
10586 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
10587 | Polling is automatically disabled in all other cases."); | |
10588 | polling_period = 2; | |
df0f2ba1 | 10589 | |
564dc952 | 10590 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 10591 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
10592 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
10593 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 10594 | by position only."); |
aab06933 | 10595 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10596 | |
222d557c GM |
10597 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
10598 | "*Maximum mouse movement between clicks to make a double-click.\n\ | |
c5cf2109 GM |
10599 | On window-system frames, value is the number of pixels the mouse may have\n\ |
10600 | moved horizontally or vertically between two clicks to make a double-click.\n\ | |
10601 | On non window-system frames, value is interpreted in units of 1/8 characters\n\ | |
10602 | instead of pixels."); | |
222d557c GM |
10603 | double_click_fuzz = 3; |
10604 | ||
03361bcc RS |
10605 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
10606 | "*Non-nil means inhibit local map menu bar menus."); | |
10607 | inhibit_local_menu_bar_menus = 0; | |
10608 | ||
284f4730 | 10609 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 10610 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
10611 | This includes key sequences read from keyboard macros.\n\ |
10612 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
10613 | num_input_keys = 0; |
10614 | ||
c43b1734 RS |
10615 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
10616 | "Number of input events read from the keyboard so far.\n\ | |
10617 | This does not include events generated by keyboard macros."); | |
10618 | num_nonmacro_input_events = 0; | |
fa90970d | 10619 | |
4c52b668 KH |
10620 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
10621 | "The frame in which the most recently read event occurred.\n\ | |
10622 | If the last event came from a keyboard macro, this is set to `macro'."); | |
10623 | Vlast_event_frame = Qnil; | |
10624 | ||
fa90970d RS |
10625 | /* This variable is set up in sysdep.c. */ |
10626 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
10627 | "The ERASE character as set by the user with stty."); | |
10628 | ||
7e85b935 | 10629 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
10630 | "Character to recognize as meaning Help.\n\ |
10631 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
10632 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 10633 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10634 | |
ecb7cb34 KH |
10635 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
10636 | "List of input events to recognize as meaning Help.\n\ | |
10637 | These work just like the value of `help-char' (see that)."); | |
10638 | Vhelp_event_list = Qnil; | |
10639 | ||
284f4730 | 10640 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 10641 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
10642 | If the form returns a string, that string is displayed.\n\ |
10643 | If `help-form' is nil, the help char is not recognized."); | |
10644 | Vhelp_form = Qnil; | |
10645 | ||
7e85b935 RS |
10646 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
10647 | "Command to run when `help-char' character follows a prefix key.\n\ | |
10648 | This command is used only when there is no actual binding\n\ | |
10649 | for that character after that prefix key."); | |
10650 | Vprefix_help_command = Qnil; | |
10651 | ||
284f4730 JB |
10652 | DEFVAR_LISP ("top-level", &Vtop_level, |
10653 | "Form to evaluate when Emacs starts up.\n\ | |
10654 | Useful to set before you dump a modified Emacs."); | |
10655 | Vtop_level = Qnil; | |
10656 | ||
10657 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 10658 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 10659 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
10660 | The value may be a string, a vector, or a char-table.\n\ |
10661 | If it is a string or vector of length N,\n\ | |
10662 | character codes N and up are untranslated.\n\ | |
10663 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
10664 | Vkeyboard_translate_table = Qnil; |
10665 | ||
8026024c | 10666 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
10667 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
10668 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
10669 | cannot_suspend = 0; |
10670 | ||
284f4730 | 10671 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 10672 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 10673 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
10674 | for elements that have prompt strings.\n\ |
10675 | The menu is displayed on the screen\n\ | |
10676 | if X menus were enabled at configuration\n\ | |
10677 | time and the previous event was a mouse click prefix key.\n\ | |
10678 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
10679 | menu_prompting = 1; |
10680 | ||
10681 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
10682 | "Character to see next line of menu prompt.\n\ | |
10683 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 10684 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10685 | |
10686 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
10687 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
10688 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
10689 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 10690 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
10691 | all input characters will have the control modifier applied to them.\n\ |
10692 | \n\ | |
9d9f56dd | 10693 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 10694 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 10695 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 10696 | cancels any modification."); |
9fa4395d | 10697 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10698 | |
10699 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
10700 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
10701 | The command loop sets this to nil before each command,\n\ | |
10702 | and tests the value when the command returns.\n\ | |
10703 | Buffer modification stores t in this variable."); | |
10704 | Vdeactivate_mark = Qnil; | |
10705 | ||
b0f2a7bf KH |
10706 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
10707 | "Temporary storage of pre-command-hook or post-command-hook."); | |
10708 | Vcommand_hook_internal = Qnil; | |
10709 | ||
86e5706b | 10710 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 10711 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
10712 | If an unhandled error happens in running this hook,\n\ |
10713 | the hook value is set to nil, since otherwise the error\n\ | |
10714 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
10715 | Vpre_command_hook = Qnil; |
10716 | ||
10717 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 10718 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
10719 | If an unhandled error happens in running this hook,\n\ |
10720 | the hook value is set to nil, since otherwise the error\n\ | |
10721 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 10722 | Vpost_command_hook = Qnil; |
48e416d4 | 10723 | |
59aadc81 RS |
10724 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
10725 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
10726 | Errors running the hook are caught and ignored.\n\ |
10727 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
10728 | Vpost_command_idle_hook = Qnil; |
10729 | ||
10730 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 10731 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
10732 | This is measured in microseconds."); |
10733 | post_command_idle_delay = 100000; | |
10734 | ||
cdb9d665 RS |
10735 | #if 0 |
10736 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
10737 | "Normal hook run when clearing the echo area."); | |
10738 | #endif | |
10739 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
656280a6 | 10740 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 10741 | |
48e416d4 RS |
10742 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
10743 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
10744 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 10745 | |
9f9c0e27 RS |
10746 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
10747 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 10748 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10749 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10750 | |
217258d5 KH |
10751 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10752 | Voverriding_terminal_local_map, | |
779b34df | 10753 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10754 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df | 10755 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
5141f9d0 | 10756 | This variable is intended to let commands such as `universal-argument'\n\ |
779b34df | 10757 | set up a different keymap for reading the next command."); |
217258d5 | 10758 | |
9dd3131c RS |
10759 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10760 | "Keymap that overrides all other local keymaps.\n\ | |
10761 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10762 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10763 | Voverriding_local_map = Qnil; | |
10764 | ||
d0a49716 RS |
10765 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10766 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10767 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10768 | and the minor mode maps regardless of `overriding-local-map'."); | |
10769 | Voverriding_local_map_menu_flag = Qnil; | |
10770 | ||
7f07d5ca RS |
10771 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10772 | "Keymap defining bindings for special events to execute at low level."); | |
10773 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10774 | ||
71edead1 | 10775 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10776 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10777 | |
7c97ffdc | 10778 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10779 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10780 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10781 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10782 | and SYMBOL is its name."); |
8a792f3a RS |
10783 | |
10784 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10785 | "List of deferred actions to be performed at a later time.\n\ | |
10786 | The precise format isn't relevant here; we just check whether it is nil."); | |
10787 | Vdeferred_action_list = Qnil; | |
10788 | ||
10789 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10790 | "Function to call to handle deferred actions, after each command.\n\ | |
10791 | This function is called with no arguments after each command\n\ | |
10792 | whenever `deferred-action-list' is non-nil."); | |
10793 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10794 | |
10795 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10796 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10797 | The value can be a length of time to show the message for.\n\ |
10798 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10799 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10800 | |
c04cbc3b | 10801 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10802 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10803 | Vtimer_list = Qnil; |
d9d4c147 KH |
10804 | |
10805 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10806 | "List of active idle-time timers in order of increasing time"); | |
10807 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10808 | |
10809 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10810 | "If non-nil, the function that implements the current input method.\n\ | |
10811 | It's called with one argument, a printing character that was just read.\n\ | |
10812 | \(That means a character with code 040...0176.)\n\ | |
10813 | Typically this function uses `read-event' to read additional events.\n\ | |
10814 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10815 | so it will not be called recursively.\n\ | |
10816 | \n\ | |
10817 | The function should return a list of zero or more events\n\ | |
10818 | to be used as input. If it wants to put back some events\n\ | |
10819 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10820 | it can add them to the beginning of `unread-command-events'.\n\ |
10821 | \n\ | |
10822 | The input method function can find in `input-method-previous-method'\n\ | |
10823 | the previous echo area message.\n\ | |
10824 | \n\ | |
10825 | The input method function should refer to the variables\n\ | |
10826 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10827 | for guidance on what to do."); | |
7d18f9ae | 10828 | Vinput_method_function = Qnil; |
d5eecefb RS |
10829 | |
10830 | DEFVAR_LISP ("input-method-previous-message", | |
10831 | &Vinput_method_previous_message, | |
a8b13665 | 10832 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10833 | This variable exists because `read-event' clears the echo area\n\ |
10834 | before running the input method. It is nil if there was no message."); | |
10835 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10836 | |
10837 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10838 | "If non-nil, the function that implements the display of help.\n\ | |
10839 | It's called with one argument, the help string to display."); | |
10840 | Vshow_help_function = Qnil; | |
adf5cb9c KH |
10841 | |
10842 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
10843 | "If non-nil, suppress point adjustment after executing a command.\n\ | |
10844 | \n\ | |
10845 | After a command is executed, if point is moved into a region that has\n\ | |
10846 | special properties (e.g. composition, display), we adjust point to\n\ | |
10847 | the boundary of the region. But, several special commands sets this\n\ | |
10848 | variable to non-nil, then we suppress the point adjustment.\n\ | |
10849 | \n\ | |
10850 | This variable is set to nil before reading a command, and is checked\n\ | |
10851 | just after executing the command"); | |
10852 | Vdisable_point_adjustment = Qnil; | |
10853 | ||
10854 | DEFVAR_LISP ("global-disable-point-adjustment", | |
10855 | &Vglobal_disable_point_adjustment, | |
10856 | "*If non-nil, always suppress point adjustment.\n\ | |
10857 | \n\ | |
10858 | The default value is nil, in which case, point adjustment are\n\ | |
10859 | suppressed only after special commands that set\n\ | |
10860 | `disable-point-adjustment' (which see) to non-nil."); | |
10861 | Vglobal_disable_point_adjustment = Qnil; | |
3626fb1a | 10862 | |
a1d34b1e | 10863 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
3626fb1a GM |
10864 | "Non-nil means updating menu bindings is allowed.\n\ |
10865 | A value of nil means menu bindings should not be updated.\n\ | |
10866 | Used during Emacs' startup."); | |
10867 | update_menu_bindings = 1; | |
00392ce6 MB |
10868 | |
10869 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
10870 | "*How long to display an echo-area message when the minibuffer is active.\n\ | |
10871 | If the value is not a number, such messages don't time out."); | |
10872 | Vminibuffer_message_timeout = make_number (2); | |
284f4730 JB |
10873 | } |
10874 | ||
dfcf069d | 10875 | void |
284f4730 JB |
10876 | keys_of_keyboard () |
10877 | { | |
10878 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10879 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10880 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10881 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10882 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10883 | |
10884 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10885 | "handle-delete-frame"); | |
10886 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10887 | "ignore-event"); | |
10888 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10889 | "ignore-event"); | |
284f4730 | 10890 | } |