Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
f9f1e1fc | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000, 01, 02 |
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" |
bdb7aa47 | 40 | #include "keymap.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
8a9f5d3c GM |
43 | #include "systime.h" |
44 | #include "atimer.h" | |
284f4730 JB |
45 | #include <setjmp.h> |
46 | #include <errno.h> | |
47 | ||
80e4aa30 RS |
48 | #ifdef MSDOS |
49 | #include "msdos.h" | |
50 | #include <time.h> | |
51 | #else /* not MSDOS */ | |
284f4730 JB |
52 | #ifndef VMS |
53 | #include <sys/ioctl.h> | |
284f4730 | 54 | #endif |
80e4aa30 | 55 | #endif /* not MSDOS */ |
284f4730 | 56 | |
52baf19e | 57 | #include "syssignal.h" |
6ef5b54f | 58 | #include "systty.h" |
52baf19e | 59 | |
03cee6ae GM |
60 | #include <sys/types.h> |
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
64 | ||
c5e3b6c5 RS |
65 | /* This is to get the definitions of the XK_ symbols. */ |
66 | #ifdef HAVE_X_WINDOWS | |
67 | #include "xterm.h" | |
68 | #endif | |
69 | ||
e98a93eb GV |
70 | #ifdef HAVE_NTGUI |
71 | #include "w32term.h" | |
72 | #endif /* HAVE_NTGUI */ | |
73 | ||
e0f712ba | 74 | #ifdef MAC_OS |
1a578e9b AC |
75 | #include "macterm.h" |
76 | #endif | |
77 | ||
02639609 | 78 | #ifndef USE_CRT_DLL |
52baf19e | 79 | extern int errno; |
02639609 | 80 | #endif |
52baf19e | 81 | |
9ac0d9e0 JB |
82 | /* Variables for blockinput.h: */ |
83 | ||
84 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 85 | int interrupt_input_blocked; |
9ac0d9e0 JB |
86 | |
87 | /* Nonzero means an input interrupt has arrived | |
88 | during the current critical section. */ | |
63927c41 | 89 | int interrupt_input_pending; |
9ac0d9e0 JB |
90 | |
91 | ||
437f6112 RS |
92 | /* File descriptor to use for input. */ |
93 | extern int input_fd; | |
284f4730 | 94 | |
e98a93eb | 95 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 96 | /* Make all keyboard buffers much bigger when using X windows. */ |
e0f712ba AC |
97 | #ifdef MAC_OS8 |
98 | /* But not too big (local data > 32K error) if on Mac OS Classic. */ | |
f019cded RS |
99 | #define KBD_BUFFER_SIZE 512 |
100 | #else | |
284f4730 | 101 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 102 | #endif |
284f4730 | 103 | #else /* No X-windows, character input */ |
de11c1ea | 104 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
105 | #endif /* No X-windows */ |
106 | ||
222d557c GM |
107 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
108 | ||
284f4730 JB |
109 | /* Following definition copied from eval.c */ |
110 | ||
111 | struct backtrace | |
112 | { | |
113 | struct backtrace *next; | |
114 | Lisp_Object *function; | |
115 | Lisp_Object *args; /* Points to vector of args. */ | |
116 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
117 | args points to slot holding list of | |
118 | unevalled args */ | |
119 | char evalargs; | |
120 | }; | |
121 | ||
c5fdd383 KH |
122 | #ifdef MULTI_KBOARD |
123 | KBOARD *initial_kboard; | |
124 | KBOARD *current_kboard; | |
125 | KBOARD *all_kboards; | |
1e8bd3da | 126 | int single_kboard; |
6c6083a9 | 127 | #else |
c5fdd383 | 128 | KBOARD the_only_kboard; |
6c6083a9 | 129 | #endif |
612b78ef | 130 | |
284f4730 JB |
131 | /* Non-nil disable property on a command means |
132 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 133 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
134 | |
135 | #define NUM_RECENT_KEYS (100) | |
136 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
137 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 138 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 139 | |
6569cc8d JB |
140 | /* Vector holding the key sequence that invoked the current command. |
141 | It is reused for each command, and it may be longer than the current | |
142 | sequence; this_command_key_count indicates how many elements | |
143 | actually mean something. | |
144 | It's easier to staticpro a single Lisp_Object than an array. */ | |
145 | Lisp_Object this_command_keys; | |
146 | int this_command_key_count; | |
284f4730 | 147 | |
7d18f9ae RS |
148 | /* This vector is used as a buffer to record the events that were actually read |
149 | by read_key_sequence. */ | |
150 | Lisp_Object raw_keybuf; | |
151 | int raw_keybuf_count; | |
152 | ||
153 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 154 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
7d18f9ae RS |
155 | { \ |
156 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
157 | Lisp_Object new; \ | |
158 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
159 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
160 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
161 | raw_keybuf = new; \ | |
162 | } | |
163 | ||
6321824f RS |
164 | /* Number of elements of this_command_keys |
165 | that precede this key sequence. */ | |
166 | int this_single_command_key_start; | |
167 | ||
71918b75 RS |
168 | /* Record values of this_command_key_count and echo_length () |
169 | before this command was read. */ | |
170 | static int before_command_key_count; | |
171 | static int before_command_echo_length; | |
172 | /* Values of before_command_key_count and before_command_echo_length | |
173 | saved by reset-this-command-lengths. */ | |
174 | static int before_command_key_count_1; | |
175 | static int before_command_echo_length_1; | |
176 | /* Flag set by reset-this-command-lengths, | |
177 | saying to reset the lengths when add_command_key is called. */ | |
178 | static int before_command_restore_flag; | |
179 | ||
284f4730 JB |
180 | extern int minbuf_level; |
181 | ||
a59b172a RS |
182 | extern int message_enable_multibyte; |
183 | ||
284f4730 JB |
184 | extern struct backtrace *backtrace_list; |
185 | ||
7ee32cda GM |
186 | /* If non-nil, the function that implements the display of help. |
187 | It's called with one argument, the help string to display. */ | |
188 | ||
189 | Lisp_Object Vshow_help_function; | |
190 | ||
f0c1cc56 GM |
191 | /* If a string, the message displayed before displaying a help-echo |
192 | in the echo area. */ | |
193 | ||
194 | Lisp_Object Vpre_help_message; | |
195 | ||
284f4730 | 196 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 197 | |
284f4730 JB |
198 | static int menu_prompting; |
199 | ||
200 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 201 | |
284f4730 JB |
202 | static Lisp_Object menu_prompt_more_char; |
203 | ||
204 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 205 | |
284f4730 JB |
206 | static jmp_buf getcjmp; |
207 | ||
208 | /* True while doing kbd input. */ | |
209 | int waiting_for_input; | |
210 | ||
211 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 212 | |
c843d6c6 | 213 | int echoing; |
284f4730 | 214 | |
985f9f66 GM |
215 | /* Non-null means we can start echoing at the next input pause even |
216 | though there is something in the echo area. */ | |
217 | ||
218 | static struct kboard *ok_to_echo_at_next_pause; | |
219 | ||
59a84f8e GM |
220 | /* The kboard last echoing, or null for none. Reset to 0 in |
221 | cancel_echoing. If non-null, and a current echo area message | |
222 | exists, and echo_message_buffer is eq to the current message | |
223 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 224 | |
f49aedfd | 225 | struct kboard *echo_kboard; |
1fc93d49 | 226 | |
59a84f8e GM |
227 | /* The buffer used for echoing. Set in echo_now, reset in |
228 | cancel_echoing. */ | |
229 | ||
c843d6c6 | 230 | Lisp_Object echo_message_buffer; |
59a84f8e | 231 | |
03361bcc RS |
232 | /* Nonzero means disregard local maps for the menu bar. */ |
233 | static int inhibit_local_menu_bar_menus; | |
234 | ||
80e4aa30 | 235 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
236 | int immediate_quit; |
237 | ||
fa90970d RS |
238 | /* The user's ERASE setting. */ |
239 | Lisp_Object Vtty_erase_char; | |
240 | ||
284f4730 | 241 | /* Character to recognize as the help char. */ |
7e85b935 | 242 | Lisp_Object Vhelp_char; |
284f4730 | 243 | |
ecb7cb34 KH |
244 | /* List of other event types to recognize as meaning "help". */ |
245 | Lisp_Object Vhelp_event_list; | |
246 | ||
284f4730 JB |
247 | /* Form to execute when help char is typed. */ |
248 | Lisp_Object Vhelp_form; | |
249 | ||
7e85b935 RS |
250 | /* Command to run when the help character follows a prefix key. */ |
251 | Lisp_Object Vprefix_help_command; | |
252 | ||
9f9c0e27 RS |
253 | /* List of items that should move to the end of the menu bar. */ |
254 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 255 | |
6526ab49 RS |
256 | /* Non-nil means show the equivalent key-binding for |
257 | any M-x command that has one. | |
258 | The value can be a length of time to show the message for. | |
259 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
260 | Lisp_Object Vsuggest_key_bindings; | |
261 | ||
00392ce6 MB |
262 | /* How long to display an echo-area message when the minibuffer is active. |
263 | If the value is not a number, such messages don't time out. */ | |
264 | Lisp_Object Vminibuffer_message_timeout; | |
265 | ||
284f4730 JB |
266 | /* Character that causes a quit. Normally C-g. |
267 | ||
268 | If we are running on an ordinary terminal, this must be an ordinary | |
269 | ASCII char, since we want to make it our interrupt character. | |
270 | ||
271 | If we are not running on an ordinary terminal, it still needs to be | |
272 | an ordinary ASCII char. This character needs to be recognized in | |
273 | the input interrupt handler. At this point, the keystroke is | |
274 | represented as a struct input_event, while the desired quit | |
275 | character is specified as a lispy event. The mapping from struct | |
276 | input_events to lispy events cannot run in an interrupt handler, | |
277 | and the reverse mapping is difficult for anything but ASCII | |
278 | keystrokes. | |
279 | ||
280 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
281 | ASCII character. */ | |
282 | int quit_char; | |
283 | ||
284 | extern Lisp_Object current_global_map; | |
285 | extern int minibuf_level; | |
286 | ||
9dd3131c RS |
287 | /* If non-nil, this is a map that overrides all other local maps. */ |
288 | Lisp_Object Voverriding_local_map; | |
289 | ||
d0a49716 RS |
290 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
291 | Lisp_Object Voverriding_local_map_menu_flag; | |
292 | ||
7f07d5ca RS |
293 | /* Keymap that defines special misc events that should |
294 | be processed immediately at a low level. */ | |
295 | Lisp_Object Vspecial_event_map; | |
296 | ||
284f4730 JB |
297 | /* Current depth in recursive edits. */ |
298 | int command_loop_level; | |
299 | ||
300 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 301 | EMACS_INT num_input_keys; |
284f4730 JB |
302 | |
303 | /* Last input character read as a command. */ | |
304 | Lisp_Object last_command_char; | |
305 | ||
7d6de002 RS |
306 | /* Last input character read as a command, not counting menus |
307 | reached by the mouse. */ | |
308 | Lisp_Object last_nonmenu_event; | |
309 | ||
284f4730 JB |
310 | /* Last input character read for any purpose. */ |
311 | Lisp_Object last_input_char; | |
312 | ||
dbc4e1c1 | 313 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 314 | Lisp_Object Vunread_command_events; |
284f4730 | 315 | |
7d18f9ae RS |
316 | /* If not Qnil, a list of objects to be read as subsequent command input |
317 | including input method processing. */ | |
318 | Lisp_Object Vunread_input_method_events; | |
319 | ||
320 | /* If not Qnil, a list of objects to be read as subsequent command input | |
321 | but NOT including input method processing. */ | |
322 | Lisp_Object Vunread_post_input_method_events; | |
323 | ||
86e5706b | 324 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 325 | EMACS_INT unread_command_char; |
86e5706b | 326 | |
cd21b839 JB |
327 | /* If not Qnil, this is a switch-frame event which we decided to put |
328 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 329 | next command input, after any unread_command_events. |
8f805655 JB |
330 | |
331 | read_key_sequence uses this to delay switch-frame events until the | |
332 | end of the key sequence; Fread_char uses it to put off switch-frame | |
333 | events until a non-ASCII event is acceptable as input. */ | |
334 | Lisp_Object unread_switch_frame; | |
cd21b839 | 335 | |
9fa4395d | 336 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 337 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 338 | |
284f4730 JB |
339 | /* Char to use as prefix when a meta character is typed in. |
340 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
341 | ||
342 | Lisp_Object meta_prefix_char; | |
343 | ||
344 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
345 | static int last_non_minibuf_size; | |
346 | ||
06ef7355 | 347 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
348 | static Lisp_Object Vauto_save_timeout; |
349 | ||
350 | /* Total number of times read_char has returned. */ | |
4abfba1f | 351 | int num_input_events; |
284f4730 | 352 | |
51172b6d | 353 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 354 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 355 | |
284f4730 JB |
356 | /* Auto-save automatically when this many characters have been typed |
357 | since the last time. */ | |
358 | ||
31ade731 | 359 | static EMACS_INT auto_save_interval; |
284f4730 | 360 | |
c43b1734 | 361 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
362 | |
363 | int last_auto_save; | |
364 | ||
284f4730 | 365 | /* The command being executed by the command loop. |
6c7178b9 KH |
366 | Commands may set this, and the value set will be copied into |
367 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
368 | Lisp_Object Vthis_command; |
369 | ||
370 | /* This is like Vthis_command, except that commands never set it. */ | |
371 | Lisp_Object real_this_command; | |
284f4730 | 372 | |
8b9940e6 KS |
373 | /* If the lookup of the command returns a binding, the original |
374 | command is stored in this-original-command. It is nil otherwise. */ | |
375 | Lisp_Object Vthis_original_command; | |
376 | ||
b453f72e KH |
377 | /* The value of point when the last command was executed. */ |
378 | int last_point_position; | |
379 | ||
047688cb RS |
380 | /* The buffer that was current when the last command was started. */ |
381 | Lisp_Object last_point_position_buffer; | |
382 | ||
4c52b668 KH |
383 | /* The frame in which the last input event occurred, or Qmacro if the |
384 | last event came from a macro. We use this to determine when to | |
385 | generate switch-frame events. This may be cleared by functions | |
386 | like Fselect_frame, to make sure that a switch-frame event is | |
387 | generated by the next character. */ | |
388 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
389 | |
390 | /* A user-visible version of the above, intended to allow users to | |
391 | figure out where the last event came from, if the event doesn't | |
392 | carry that information itself (i.e. if it was a character). */ | |
393 | Lisp_Object Vlast_event_frame; | |
394 | ||
1113d9db JB |
395 | /* The timestamp of the last input event we received from the X server. |
396 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
397 | unsigned long last_event_timestamp; |
398 | ||
399 | Lisp_Object Qself_insert_command; | |
400 | Lisp_Object Qforward_char; | |
401 | Lisp_Object Qbackward_char; | |
e58aa385 | 402 | Lisp_Object Qundefined; |
d925fb39 | 403 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
404 | |
405 | /* read_key_sequence stores here the command definition of the | |
406 | key sequence that it reads. */ | |
407 | Lisp_Object read_key_sequence_cmd; | |
408 | ||
39aab679 DL |
409 | /* Echo unfinished commands after this many seconds of pause. */ |
410 | Lisp_Object Vecho_keystrokes; | |
411 | ||
284f4730 JB |
412 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
413 | Lisp_Object Vtop_level; | |
414 | ||
415 | /* User-supplied string to translate input characters through. */ | |
416 | Lisp_Object Vkeyboard_translate_table; | |
417 | ||
418 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
419 | extern Lisp_Object Vfunction_key_map; | |
420 | ||
e0301c07 RS |
421 | /* Another keymap that maps key sequences into key sequences. |
422 | This one takes precedence over ordinary definitions. */ | |
423 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 424 | |
7d18f9ae RS |
425 | /* If non-nil, this implements the current input method. */ |
426 | Lisp_Object Vinput_method_function; | |
427 | Lisp_Object Qinput_method_function; | |
428 | ||
d5eecefb RS |
429 | /* When we call Vinput_method_function, |
430 | this holds the echo area message that was just erased. */ | |
431 | Lisp_Object Vinput_method_previous_message; | |
432 | ||
86e5706b RS |
433 | /* Non-nil means deactivate the mark at end of this command. */ |
434 | Lisp_Object Vdeactivate_mark; | |
435 | ||
48e416d4 RS |
436 | /* Menu bar specified in Lucid Emacs fashion. */ |
437 | ||
438 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
439 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
440 | ||
cf24f894 | 441 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 442 | |
86e5706b | 443 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
444 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
445 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 446 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
447 | /* Hook run after a command if there's no more input soon. */ |
448 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
449 | ||
450 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
31ade731 | 451 | EMACS_INT post_command_idle_delay; |
86e5706b | 452 | |
8a792f3a RS |
453 | /* List of deferred actions to be performed at a later time. |
454 | The precise format isn't relevant here; we just check whether it is nil. */ | |
455 | Lisp_Object Vdeferred_action_list; | |
456 | ||
457 | /* Function to call to handle deferred actions, when there are any. */ | |
458 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 459 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 460 | |
d5eecefb RS |
461 | Lisp_Object Qinput_method_exit_on_first_char; |
462 | Lisp_Object Qinput_method_use_echo_area; | |
463 | ||
284f4730 JB |
464 | /* File in which we write all commands we read. */ |
465 | FILE *dribble; | |
466 | ||
467 | /* Nonzero if input is available. */ | |
468 | int input_pending; | |
469 | ||
b04904fb RS |
470 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
471 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
472 | ||
284f4730 JB |
473 | int meta_key; |
474 | ||
3626fb1a GM |
475 | /* Non-zero means force key bindings update in parse_menu_item. */ |
476 | ||
477 | int update_menu_bindings; | |
478 | ||
284f4730 JB |
479 | extern char *pending_malloc_warning; |
480 | ||
beecf6a1 | 481 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 482 | |
beecf6a1 KH |
483 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
484 | ||
da8f7368 | 485 | /* Vector to GCPRO the Lisp objects referenced from kbd_buffer. |
beecf6a1 KH |
486 | |
487 | The interrupt-level event handlers will never enqueue an event on a | |
488 | frame which is not in Vframe_list, and once an event is dequeued, | |
489 | internal_last_event_frame or the event itself points to the frame. | |
490 | So that's all fine. | |
491 | ||
492 | But while the event is sitting in the queue, it's completely | |
493 | unprotected. Suppose the user types one command which will run for | |
494 | a while and then delete a frame, and then types another event at | |
495 | the frame that will be deleted, before the command gets around to | |
496 | it. Suppose there are no references to this frame elsewhere in | |
497 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
498 | have an event referring to a freed frame, which will crash Emacs | |
499 | when it is dequeued. | |
500 | ||
501 | Similar things happen when an event on a scroll bar is enqueued; the | |
502 | window may be deleted while the event is in the queue. | |
503 | ||
da8f7368 GM |
504 | So, we use this vector to protect the Lisp_Objects in the event |
505 | queue. That way, they'll be dequeued as dead frames or windows, | |
506 | but still valid Lisp objects. | |
beecf6a1 | 507 | |
3b8f9651 | 508 | If kbd_buffer[i].kind != NO_EVENT, then |
da8f7368 GM |
509 | |
510 | AREF (kbd_buffer_gcpro, 2 * i) == kbd_buffer[i].frame_or_window. | |
511 | AREF (kbd_buffer_gcpro, 2 * i + 1) == kbd_buffer[i].arg. */ | |
512 | ||
513 | static Lisp_Object kbd_buffer_gcpro; | |
beecf6a1 KH |
514 | |
515 | /* Pointer to next available character in kbd_buffer. | |
516 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 517 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
518 | next available char is in kbd_buffer[0]. */ |
519 | static struct input_event *kbd_fetch_ptr; | |
520 | ||
521 | /* Pointer to next place to store character in kbd_buffer. This | |
522 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
523 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 524 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
525 | |
526 | /* The above pair of variables forms a "queue empty" flag. When we | |
527 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
528 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
529 | there is input available iff the two pointers are not equal. | |
530 | ||
531 | Why not just have a flag set and cleared by the enqueuing and | |
532 | dequeuing functions? Such a flag could be screwed up by interrupts | |
533 | at inopportune times. */ | |
534 | ||
f3253854 | 535 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
536 | mouse moves, and motion events will appear in the input stream. |
537 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 538 | Lisp_Object do_mouse_tracking; |
284f4730 | 539 | |
284f4730 JB |
540 | /* Symbols to head events. */ |
541 | Lisp_Object Qmouse_movement; | |
3c370943 | 542 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 543 | Lisp_Object Qswitch_frame; |
bbdc2092 | 544 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
545 | Lisp_Object Qiconify_frame; |
546 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 547 | Lisp_Object Qselect_window; |
7ee32cda | 548 | Lisp_Object Qhelp_echo; |
cd21b839 | 549 | |
284f4730 JB |
550 | /* Symbols to denote kinds of events. */ |
551 | Lisp_Object Qfunction_key; | |
552 | Lisp_Object Qmouse_click; | |
742fbed7 | 553 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 | 554 | Lisp_Object Qmouse_wheel; |
742fbed7 AC |
555 | #endif |
556 | #ifdef WINDOWSNT | |
1161d367 | 557 | Lisp_Object Qlanguage_change; |
07de30b9 | 558 | #endif |
a24dc617 | 559 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
560 | Lisp_Object Qsave_session; |
561 | ||
284f4730 | 562 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
563 | |
564 | /* Properties of event headers. */ | |
565 | Lisp_Object Qevent_kind; | |
88cb0656 | 566 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 567 | |
e8886a1d RS |
568 | /* menu item parts */ |
569 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 570 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
571 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
572 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
573 | extern Lisp_Object Vdefine_key_rebound_commands; |
574 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 575 | |
0a7f1fc0 JB |
576 | /* An event header symbol HEAD may have a property named |
577 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
578 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
579 | mask of modifiers applied to it. If present, this is used to help | |
580 | speed up parse_modifiers. */ | |
581 | Lisp_Object Qevent_symbol_element_mask; | |
582 | ||
583 | /* An unmodified event header BASE may have a property named | |
584 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
585 | modified versions of BASE. If present, this helps speed up | |
586 | apply_modifiers. */ | |
587 | Lisp_Object Qmodifier_cache; | |
588 | ||
5ec75a55 | 589 | /* Symbols to use for parts of windows. */ |
284f4730 | 590 | Lisp_Object Qmode_line; |
e5d77022 | 591 | Lisp_Object Qvertical_line; |
3c370943 | 592 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 593 | Lisp_Object Qmenu_bar; |
7d60ad8a | 594 | extern Lisp_Object Qleft_margin, Qright_margin; |
5ec75a55 | 595 | |
f4255cd1 JB |
596 | Lisp_Object recursive_edit_unwind (), command_loop (); |
597 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 598 | Lisp_Object Qextended_command_history; |
c04cbc3b | 599 | EMACS_TIME timer_check (); |
284f4730 | 600 | |
f4385381 RS |
601 | extern Lisp_Object Vhistory_length; |
602 | ||
2c834fb3 KH |
603 | extern char *x_get_keysym_name (); |
604 | ||
8eb4d8ef RS |
605 | static void record_menu_key (); |
606 | ||
f4eef8b4 RS |
607 | Lisp_Object Qpolling_period; |
608 | ||
d9d4c147 | 609 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
610 | Lisp_Object Vtimer_list; |
611 | ||
d9d4c147 KH |
612 | /* List of idle time timers. Appears in order of next scheduled event. */ |
613 | Lisp_Object Vtimer_idle_list; | |
614 | ||
87dd9b9b RS |
615 | /* Incremented whenever a timer is run. */ |
616 | int timers_run; | |
617 | ||
a9f16aa9 KH |
618 | extern Lisp_Object Vprint_level, Vprint_length; |
619 | ||
ffd56f97 JB |
620 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
621 | happens. */ | |
622 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
623 | |
624 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
625 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
626 | int interrupt_input; | |
627 | ||
628 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
629 | int interrupts_deferred; | |
630 | ||
87dd9b9b | 631 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
632 | int flow_control; |
633 | ||
284f4730 JB |
634 | /* Allow m- file to inhibit use of FIONREAD. */ |
635 | #ifdef BROKEN_FIONREAD | |
636 | #undef FIONREAD | |
637 | #endif | |
638 | ||
639 | /* We are unable to use interrupts if FIONREAD is not available, | |
640 | so flush SIGIO so we won't try. */ | |
641 | #ifndef FIONREAD | |
642 | #ifdef SIGIO | |
643 | #undef SIGIO | |
644 | #endif | |
645 | #endif | |
646 | ||
e98a93eb | 647 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 648 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 649 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
650 | #define POLL_FOR_INPUT |
651 | #endif | |
adf5cb9c KH |
652 | |
653 | /* After a command is executed, if point is moved into a region that | |
654 | has specific properties (e.g. composition, display), we adjust | |
655 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 656 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 657 | variable is set to nil before reading a command. */ |
da8f7368 | 658 | |
adf5cb9c KH |
659 | Lisp_Object Vdisable_point_adjustment; |
660 | ||
661 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 662 | |
adf5cb9c KH |
663 | Lisp_Object Vglobal_disable_point_adjustment; |
664 | ||
fdbb67fe GM |
665 | /* The time when Emacs started being idle. */ |
666 | ||
667 | static EMACS_TIME timer_idleness_start_time; | |
668 | ||
3021d3a9 RS |
669 | /* After Emacs stops being idle, this saves the last value |
670 | of timer_idleness_start_time from when it was idle. */ | |
671 | ||
672 | static EMACS_TIME timer_last_idleness_start_time; | |
673 | ||
284f4730 JB |
674 | \f |
675 | /* Global variable declarations. */ | |
676 | ||
677 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
678 | void (*keyboard_init_hook) (); | |
679 | ||
0bbfdc25 GM |
680 | static int read_avail_input P_ ((int)); |
681 | static void get_input_pending P_ ((int *, int)); | |
20057d52 | 682 | static void get_filtered_input_pending P_ ((int *, int, int)); |
0bbfdc25 | 683 | static int readable_events P_ ((int)); |
20057d52 | 684 | static int readable_filtered_events P_ ((int, int)); |
0bbfdc25 GM |
685 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, |
686 | Lisp_Object, int *)); | |
8150596a | 687 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
688 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
689 | Lisp_Object *)); | |
690 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 691 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
692 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
693 | enum scroll_bar_part, | |
694 | Lisp_Object, Lisp_Object, | |
695 | unsigned long)); | |
514354e9 | 696 | #endif |
0bbfdc25 GM |
697 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
698 | Lisp_Object, char **, | |
699 | Lisp_Object *, unsigned)); | |
700 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
701 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 702 | static int parse_solitary_modifier (); |
0bbfdc25 | 703 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 704 | static void save_getcjmp (); |
0bbfdc25 | 705 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 706 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 707 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 708 | static void any_kboard_state P_ ((void)); |
284f4730 | 709 | |
8026024c KH |
710 | /* Nonzero means don't try to suspend even if the operating system seems |
711 | to support it. */ | |
712 | static int cannot_suspend; | |
713 | ||
284f4730 JB |
714 | /* Install the string STR as the beginning of the string of echoing, |
715 | so that it serves as a prompt for the next character. | |
716 | Also start echoing. */ | |
717 | ||
dfcf069d | 718 | void |
284f4730 | 719 | echo_prompt (str) |
a4ef85ee | 720 | Lisp_Object str; |
284f4730 | 721 | { |
678e9d18 | 722 | current_kboard->echo_string = str; |
0d121f7c | 723 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 724 | echo_now (); |
284f4730 JB |
725 | } |
726 | ||
df0f2ba1 | 727 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
728 | C can be a character, which is printed prettily ("M-C-x" and all that |
729 | jazz), or a symbol, whose name is printed. */ | |
730 | ||
dfcf069d | 731 | void |
284f4730 JB |
732 | echo_char (c) |
733 | Lisp_Object c; | |
734 | { | |
c5fdd383 | 735 | if (current_kboard->immediate_echo) |
284f4730 | 736 | { |
678e9d18 GM |
737 | int size = KEY_DESCRIPTION_SIZE + 100; |
738 | char *buffer = (char *) alloca (size); | |
739 | char *ptr = buffer; | |
740 | Lisp_Object echo_string; | |
284f4730 | 741 | |
0d121f7c GM |
742 | echo_string = current_kboard->echo_string; |
743 | ||
284f4730 | 744 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 745 | c = EVENT_HEAD (c); |
284f4730 | 746 | |
8c18cbfb | 747 | if (INTEGERP (c)) |
284f4730 | 748 | { |
678e9d18 | 749 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 750 | } |
8c18cbfb | 751 | else if (SYMBOLP (c)) |
284f4730 | 752 | { |
1b049b51 KR |
753 | Lisp_Object name = SYMBOL_NAME (c); |
754 | int nbytes = SBYTES (name); | |
678e9d18 | 755 | |
0d121f7c | 756 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
757 | { |
758 | int offset = ptr - buffer; | |
0d121f7c | 759 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
760 | buffer = (char *) alloca (size); |
761 | ptr = buffer + offset; | |
762 | } | |
763 | ||
1b049b51 KR |
764 | ptr += copy_text (SDATA (name), ptr, nbytes, |
765 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
766 | } |
767 | ||
0d121f7c | 768 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 769 | && help_char_p (c)) |
284f4730 | 770 | { |
678e9d18 GM |
771 | const char *text = " (Type ? for further options)"; |
772 | int len = strlen (text); | |
773 | ||
774 | if (size - (ptr - buffer) < len) | |
775 | { | |
776 | int offset = ptr - buffer; | |
777 | size += len; | |
778 | buffer = (char *) alloca (size); | |
779 | ptr = buffer + offset; | |
780 | } | |
781 | ||
782 | bcopy (text, ptr, len); | |
783 | ptr += len; | |
284f4730 JB |
784 | } |
785 | ||
0d121f7c GM |
786 | /* Replace a dash from echo_dash with a space, otherwise |
787 | add a space at the end as a separator between keys. */ | |
678e9d18 | 788 | if (STRINGP (echo_string) |
0d121f7c GM |
789 | && SCHARS (echo_string) > 0) |
790 | { | |
791 | Lisp_Object last_char, idx; | |
792 | ||
793 | idx = make_number (SCHARS (echo_string) - 1); | |
794 | last_char = Faref (echo_string, idx); | |
795 | ||
796 | if (XINT (last_char) == '-') | |
797 | Faset (echo_string, idx, make_number (' ')); | |
798 | else | |
799 | echo_string = concat2 (echo_string, build_string (" ")); | |
800 | } | |
678e9d18 GM |
801 | |
802 | current_kboard->echo_string | |
803 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 804 | |
3dbd9ee4 | 805 | echo_now (); |
284f4730 JB |
806 | } |
807 | } | |
808 | ||
809 | /* Temporarily add a dash to the end of the echo string if it's not | |
810 | empty, so that it serves as a mini-prompt for the very next character. */ | |
811 | ||
dfcf069d | 812 | void |
284f4730 JB |
813 | echo_dash () |
814 | { | |
678e9d18 GM |
815 | /* Do nothing if not echoing at all. */ |
816 | if (NILP (current_kboard->echo_string)) | |
817 | return; | |
818 | ||
c5fdd383 | 819 | if (!current_kboard->immediate_echo |
0d121f7c | 820 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 821 | return; |
678e9d18 | 822 | |
7a80a6f6 | 823 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 824 | if (current_kboard->echo_after_prompt |
0d121f7c | 825 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 826 | return; |
678e9d18 | 827 | |
284f4730 JB |
828 | /* Put a dash at the end of the buffer temporarily, |
829 | but make it go away when the next character is added. */ | |
678e9d18 GM |
830 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
831 | build_string ("-")); | |
3dbd9ee4 | 832 | echo_now (); |
284f4730 JB |
833 | } |
834 | ||
835 | /* Display the current echo string, and begin echoing if not already | |
836 | doing so. */ | |
837 | ||
07a59269 | 838 | void |
3dbd9ee4 | 839 | echo_now () |
284f4730 | 840 | { |
c5fdd383 | 841 | if (!current_kboard->immediate_echo) |
284f4730 JB |
842 | { |
843 | int i; | |
c5fdd383 | 844 | current_kboard->immediate_echo = 1; |
284f4730 JB |
845 | |
846 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
847 | { |
848 | Lisp_Object c; | |
849 | c = XVECTOR (this_command_keys)->contents[i]; | |
850 | if (! (EVENT_HAS_PARAMETERS (c) | |
851 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
852 | echo_char (c); | |
853 | } | |
284f4730 JB |
854 | echo_dash (); |
855 | } | |
856 | ||
857 | echoing = 1; | |
678e9d18 | 858 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 859 | SBYTES (current_kboard->echo_string), |
d5db4077 | 860 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
861 | echoing = 0; |
862 | ||
59a84f8e GM |
863 | /* Record in what buffer we echoed, and from which kboard. */ |
864 | echo_message_buffer = echo_area_buffer[0]; | |
865 | echo_kboard = current_kboard; | |
866 | ||
284f4730 JB |
867 | if (waiting_for_input && !NILP (Vquit_flag)) |
868 | quit_throw_to_read_char (); | |
869 | } | |
870 | ||
871 | /* Turn off echoing, for the start of a new command. */ | |
872 | ||
dfcf069d | 873 | void |
284f4730 JB |
874 | cancel_echoing () |
875 | { | |
c5fdd383 | 876 | current_kboard->immediate_echo = 0; |
c5fdd383 | 877 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 878 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
879 | ok_to_echo_at_next_pause = NULL; |
880 | echo_kboard = NULL; | |
881 | echo_message_buffer = Qnil; | |
284f4730 JB |
882 | } |
883 | ||
884 | /* Return the length of the current echo string. */ | |
885 | ||
886 | static int | |
887 | echo_length () | |
888 | { | |
678e9d18 | 889 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 890 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 891 | : 0); |
284f4730 JB |
892 | } |
893 | ||
894 | /* Truncate the current echo message to its first LEN chars. | |
895 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 896 | switches frames while entering a key sequence. */ |
284f4730 JB |
897 | |
898 | static void | |
678e9d18 GM |
899 | echo_truncate (nchars) |
900 | int nchars; | |
901 | { | |
902 | if (STRINGP (current_kboard->echo_string)) | |
903 | current_kboard->echo_string | |
904 | = Fsubstring (current_kboard->echo_string, | |
905 | make_number (0), make_number (nchars)); | |
906 | truncate_echo_area (nchars); | |
284f4730 JB |
907 | } |
908 | ||
909 | \f | |
910 | /* Functions for manipulating this_command_keys. */ | |
911 | static void | |
912 | add_command_key (key) | |
913 | Lisp_Object key; | |
914 | { | |
71918b75 RS |
915 | /* If reset-this-command-length was called recently, obey it now. |
916 | See the doc string of that function for an explanation of why. */ | |
917 | if (before_command_restore_flag) | |
918 | { | |
919 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
920 | if (this_command_key_count < this_single_command_key_start) |
921 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
922 | echo_truncate (before_command_echo_length_1); |
923 | before_command_restore_flag = 0; | |
924 | } | |
925 | ||
f4e05d97 GM |
926 | if (this_command_key_count >= ASIZE (this_command_keys)) |
927 | this_command_keys = larger_vector (this_command_keys, | |
928 | 2 * ASIZE (this_command_keys), | |
929 | Qnil); | |
6569cc8d | 930 | |
f4e05d97 GM |
931 | AREF (this_command_keys, this_command_key_count) = key; |
932 | ++this_command_key_count; | |
284f4730 | 933 | } |
f4e05d97 | 934 | |
284f4730 JB |
935 | \f |
936 | Lisp_Object | |
937 | recursive_edit_1 () | |
938 | { | |
aed13378 | 939 | int count = SPECPDL_INDEX (); |
284f4730 JB |
940 | Lisp_Object val; |
941 | ||
942 | if (command_loop_level > 0) | |
943 | { | |
944 | specbind (Qstandard_output, Qt); | |
945 | specbind (Qstandard_input, Qt); | |
946 | } | |
947 | ||
84265027 | 948 | #ifdef HAVE_X_WINDOWS |
526a058f | 949 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 950 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
951 | can take some time. Do not check for display_hourglass_p here, |
952 | because it could already be nil. */ | |
526a058f | 953 | cancel_hourglass (); |
84265027 GM |
954 | #endif |
955 | ||
980a2d69 GM |
956 | /* This function may have been called from a debugger called from |
957 | within redisplay, for instance by Edebugging a function called | |
958 | from fontification-functions. We want to allow redisplay in | |
959 | the debugging session. | |
960 | ||
961 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
962 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
963 | recursive edit, the original redisplay leading to the recursive | |
964 | edit will be unwound. The outcome should therefore be safe. */ | |
965 | specbind (Qinhibit_redisplay, Qnil); | |
966 | redisplaying_p = 0; | |
967 | ||
284f4730 JB |
968 | val = command_loop (); |
969 | if (EQ (val, Qt)) | |
970 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
971 | /* Handle throw from read_minibuf when using minibuffer |
972 | while it's active but we're in another window. */ | |
973 | if (STRINGP (val)) | |
974 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 975 | |
cb5df6ae | 976 | return unbind_to (count, Qnil); |
284f4730 JB |
977 | } |
978 | ||
979 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 980 | |
07a59269 | 981 | void |
284f4730 JB |
982 | record_auto_save () |
983 | { | |
c43b1734 | 984 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 985 | } |
5846638c RS |
986 | |
987 | /* Make an auto save happen as soon as possible at command level. */ | |
988 | ||
dfcf069d | 989 | void |
5846638c RS |
990 | force_auto_save_soon () |
991 | { | |
992 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
993 | |
994 | record_asynch_buffer_change (); | |
5846638c | 995 | } |
284f4730 | 996 | \f |
284f4730 | 997 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
998 | doc: /* Invoke the editor command loop recursively. |
999 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1000 | that tells this function to return. | |
1001 | Alternately, `(throw 'exit t)' makes this function signal an error. | |
1002 | This function is called by the editor initialization to begin editing. */) | |
1003 | () | |
284f4730 | 1004 | { |
aed13378 | 1005 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1006 | Lisp_Object buffer; |
284f4730 JB |
1007 | |
1008 | command_loop_level++; | |
1009 | update_mode_lines = 1; | |
1010 | ||
9ce50b1e GM |
1011 | if (command_loop_level |
1012 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1013 | buffer = Fcurrent_buffer (); | |
1014 | else | |
1015 | buffer = Qnil; | |
1016 | ||
1017 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1018 | like it is done in the splash screen display, we have to | |
1019 | make sure that we restore single_kboard as command_loop_1 | |
1020 | would have done if it were left normally. */ | |
284f4730 | 1021 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1022 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1023 | ||
284f4730 JB |
1024 | recursive_edit_1 (); |
1025 | return unbind_to (count, Qnil); | |
1026 | } | |
1027 | ||
1028 | Lisp_Object | |
9ce50b1e GM |
1029 | recursive_edit_unwind (info) |
1030 | Lisp_Object info; | |
284f4730 | 1031 | { |
9ce50b1e GM |
1032 | if (BUFFERP (XCAR (info))) |
1033 | Fset_buffer (XCAR (info)); | |
1034 | ||
1035 | if (NILP (XCDR (info))) | |
1036 | any_kboard_state (); | |
1037 | else | |
1038 | single_kboard_state (); | |
1039 | ||
284f4730 JB |
1040 | command_loop_level--; |
1041 | update_mode_lines = 1; | |
1042 | return Qnil; | |
1043 | } | |
9ce50b1e | 1044 | |
284f4730 | 1045 | \f |
604ccd1d | 1046 | static void |
1e8bd3da | 1047 | any_kboard_state () |
604ccd1d | 1048 | { |
1e8bd3da RS |
1049 | #ifdef MULTI_KBOARD |
1050 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1051 | it will right away be read by read_key_sequence, | |
1052 | and then if we do switch KBOARDS, it will go into the side | |
1053 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1054 | if (CONSP (Vunread_command_events)) |
4524b161 | 1055 | { |
c5fdd383 KH |
1056 | current_kboard->kbd_queue |
1057 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1058 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1059 | } |
604ccd1d | 1060 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1061 | #endif |
1062 | single_kboard = 0; | |
1063 | #endif | |
604ccd1d | 1064 | } |
1e8bd3da RS |
1065 | |
1066 | /* Switch to the single-kboard state, making current_kboard | |
1067 | the only KBOARD from which further input is accepted. */ | |
1068 | ||
1069 | void | |
1070 | single_kboard_state () | |
1071 | { | |
1072 | #ifdef MULTI_KBOARD | |
1073 | single_kboard = 1; | |
604ccd1d | 1074 | #endif |
1e8bd3da RS |
1075 | } |
1076 | ||
1077 | /* Maintain a stack of kboards, so other parts of Emacs | |
1078 | can switch temporarily to the kboard of a given frame | |
1079 | and then revert to the previous status. */ | |
1080 | ||
1081 | struct kboard_stack | |
1082 | { | |
1083 | KBOARD *kboard; | |
1084 | struct kboard_stack *next; | |
1085 | }; | |
1086 | ||
1087 | static struct kboard_stack *kboard_stack; | |
1088 | ||
1089 | void | |
1090 | push_frame_kboard (f) | |
1091 | FRAME_PTR f; | |
1092 | { | |
ab48365b | 1093 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1094 | struct kboard_stack *p |
1095 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1096 | ||
1097 | p->next = kboard_stack; | |
1098 | p->kboard = current_kboard; | |
1099 | kboard_stack = p; | |
1100 | ||
1101 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1102 | #endif |
1e8bd3da RS |
1103 | } |
1104 | ||
1105 | void | |
1106 | pop_frame_kboard () | |
1107 | { | |
ab48365b | 1108 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1109 | struct kboard_stack *p = kboard_stack; |
1110 | current_kboard = p->kboard; | |
1111 | kboard_stack = p->next; | |
1112 | xfree (p); | |
ab48365b | 1113 | #endif |
1e8bd3da RS |
1114 | } |
1115 | \f | |
1116 | /* Handle errors that are not handled at inner levels | |
1117 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1118 | |
284f4730 JB |
1119 | Lisp_Object |
1120 | cmd_error (data) | |
1121 | Lisp_Object data; | |
a1341f75 | 1122 | { |
a9f16aa9 | 1123 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1124 | char macroerror[50]; |
1125 | ||
160552c5 RS |
1126 | #ifdef HAVE_X_WINDOWS |
1127 | if (display_hourglass_p) | |
1128 | cancel_hourglass (); | |
1129 | #endif | |
1130 | ||
e881d8b2 RS |
1131 | if (!NILP (executing_macro)) |
1132 | { | |
1133 | if (executing_macro_iterations == 1) | |
1134 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1135 | else | |
1136 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1137 | executing_macro_iterations); | |
1138 | } | |
1139 | else | |
1140 | *macroerror = 0; | |
a9f16aa9 | 1141 | |
a1341f75 RS |
1142 | Vstandard_output = Qt; |
1143 | Vstandard_input = Qt; | |
1144 | Vexecuting_macro = Qnil; | |
9f58e89e | 1145 | executing_macro = Qnil; |
d8bcf58e | 1146 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1147 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1148 | cancel_echoing (); |
a9f16aa9 KH |
1149 | |
1150 | /* Avoid unquittable loop if data contains a circular list. */ | |
1151 | old_level = Vprint_level; | |
1152 | old_length = Vprint_length; | |
0c04a67e RS |
1153 | XSETFASTINT (Vprint_level, 10); |
1154 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1155 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1156 | Vprint_level = old_level; |
1157 | Vprint_length = old_length; | |
a1341f75 RS |
1158 | |
1159 | Vquit_flag = Qnil; | |
1160 | ||
1161 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1162 | #ifdef MULTI_KBOARD |
1e8bd3da | 1163 | any_kboard_state (); |
ff4b06d3 | 1164 | #endif |
a1341f75 RS |
1165 | |
1166 | return make_number (0); | |
1167 | } | |
1168 | ||
301738ed RS |
1169 | /* Take actions on handling an error. DATA is the data that describes |
1170 | the error. | |
1171 | ||
1172 | CONTEXT is a C-string containing ASCII characters only which | |
1173 | describes the context in which the error happened. If we need to | |
1174 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1175 | string. */ | |
1176 | ||
07a59269 | 1177 | void |
a1341f75 RS |
1178 | cmd_error_internal (data, context) |
1179 | Lisp_Object data; | |
1180 | char *context; | |
284f4730 | 1181 | { |
284f4730 | 1182 | Lisp_Object stream; |
7ee32cda | 1183 | int kill_emacs_p = 0; |
788f89eb | 1184 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1185 | |
1186 | Vquit_flag = Qnil; | |
1187 | Vinhibit_quit = Qt; | |
985f9f66 | 1188 | clear_message (1, 0); |
284f4730 | 1189 | |
ff11dfa1 | 1190 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1191 | yet, or we're not interactive, it's best to dump this message out |
1192 | to stderr and exit. */ | |
788f89eb | 1193 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1194 | /* This is the case of the frame dumped with Emacs, when we're |
1195 | running under a window system. */ | |
1196 | || (!NILP (Vwindow_system) | |
1197 | && !inhibit_window_system | |
788f89eb | 1198 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1199 | || noninteractive) |
7ee32cda GM |
1200 | { |
1201 | stream = Qexternal_debugging_output; | |
1202 | kill_emacs_p = 1; | |
1203 | } | |
284f4730 JB |
1204 | else |
1205 | { | |
1206 | Fdiscard_input (); | |
dc4854ce | 1207 | message_log_maybe_newline (); |
284f4730 JB |
1208 | bitch_at_user (); |
1209 | stream = Qt; | |
1210 | } | |
1211 | ||
dc4854ce RS |
1212 | /* The immediate context is not interesting for Quits, |
1213 | since they are asyncronous. */ | |
1214 | if (EQ (XCAR (data), Qquit)) | |
1215 | Vsignaling_function = Qnil; | |
1216 | ||
1217 | print_error_message (data, stream, context, Vsignaling_function); | |
a1341f75 | 1218 | |
dc4854ce | 1219 | Vsignaling_function = Qnil; |
284f4730 | 1220 | |
ff11dfa1 | 1221 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1222 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1223 | if (kill_emacs_p) |
284f4730 JB |
1224 | { |
1225 | Fterpri (stream); | |
1226 | Fkill_emacs (make_number (-1)); | |
1227 | } | |
284f4730 JB |
1228 | } |
1229 | \f | |
1230 | Lisp_Object command_loop_1 (); | |
1231 | Lisp_Object command_loop_2 (); | |
1232 | Lisp_Object top_level_1 (); | |
1233 | ||
1234 | /* Entry to editor-command-loop. | |
1235 | This level has the catches for exiting/returning to editor command loop. | |
1236 | It returns nil to exit recursive edit, t to abort it. */ | |
1237 | ||
1238 | Lisp_Object | |
1239 | command_loop () | |
1240 | { | |
1241 | if (command_loop_level > 0 || minibuf_level > 0) | |
1242 | { | |
07ba902e RS |
1243 | Lisp_Object val; |
1244 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1245 | executing_macro = Qnil; |
1246 | return val; | |
284f4730 JB |
1247 | } |
1248 | else | |
1249 | while (1) | |
1250 | { | |
1251 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1252 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1253 | executing_macro = Qnil; |
df0f2ba1 | 1254 | |
284f4730 JB |
1255 | /* End of file in -batch run causes exit here. */ |
1256 | if (noninteractive) | |
1257 | Fkill_emacs (Qt); | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | /* Here we catch errors in execution of commands within the | |
1262 | editing loop, and reenter the editing loop. | |
1263 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1264 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1265 | returned due to end of file (or end of kbd macro). */ |
1266 | ||
1267 | Lisp_Object | |
1268 | command_loop_2 () | |
1269 | { | |
1270 | register Lisp_Object val; | |
1271 | ||
1272 | do | |
1273 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1274 | while (!NILP (val)); | |
1275 | ||
1276 | return Qnil; | |
1277 | } | |
1278 | ||
1279 | Lisp_Object | |
1280 | top_level_2 () | |
1281 | { | |
1282 | return Feval (Vtop_level); | |
1283 | } | |
1284 | ||
1285 | Lisp_Object | |
1286 | top_level_1 () | |
1287 | { | |
1288 | /* On entry to the outer level, run the startup file */ | |
1289 | if (!NILP (Vtop_level)) | |
1290 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1291 | else if (!NILP (Vpurify_flag)) | |
1292 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1293 | else | |
1294 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1295 | return Qnil; | |
1296 | } | |
1297 | ||
1298 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1299 | doc: /* Exit all recursive editing levels. */) |
1300 | () | |
284f4730 | 1301 | { |
2c9cf2c8 | 1302 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1303 | if (display_hourglass_p) |
1304 | cancel_hourglass (); | |
2c9cf2c8 | 1305 | #endif |
8c907a56 | 1306 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1307 | } |
1308 | ||
1309 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1310 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1311 | () | |
284f4730 JB |
1312 | { |
1313 | if (command_loop_level > 0 || minibuf_level > 0) | |
1314 | Fthrow (Qexit, Qnil); | |
1315 | ||
1316 | error ("No recursive edit is in progress"); | |
8c907a56 | 1317 | return Qnil; |
284f4730 JB |
1318 | } |
1319 | ||
1320 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1321 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1322 | () | |
284f4730 JB |
1323 | { |
1324 | if (command_loop_level > 0 || minibuf_level > 0) | |
1325 | Fthrow (Qexit, Qt); | |
1326 | ||
1327 | error ("No recursive edit is in progress"); | |
8c907a56 | 1328 | return Qnil; |
284f4730 JB |
1329 | } |
1330 | \f | |
1331 | /* This is the actual command reading loop, | |
1332 | sans error-handling encapsulation. */ | |
1333 | ||
a7b772c1 GM |
1334 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1335 | int, int, int)); | |
1336 | void safe_run_hooks P_ ((Lisp_Object)); | |
1337 | static void adjust_point_for_property P_ ((int)); | |
284f4730 JB |
1338 | |
1339 | Lisp_Object | |
1340 | command_loop_1 () | |
1341 | { | |
03cee6ae GM |
1342 | Lisp_Object cmd; |
1343 | int lose; | |
284f4730 JB |
1344 | int nonundocount; |
1345 | Lisp_Object keybuf[30]; | |
1346 | int i; | |
284f4730 | 1347 | int no_direct; |
86e5706b | 1348 | int prev_modiff; |
8c907a56 | 1349 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1350 | #ifdef MULTI_KBOARD |
1e8bd3da | 1351 | int was_locked = single_kboard; |
bded54dd | 1352 | #endif |
284f4730 | 1353 | |
d9b641bb | 1354 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1355 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1356 | Vdeactivate_mark = Qnil; |
284f4730 | 1357 | waiting_for_input = 0; |
df0f2ba1 | 1358 | cancel_echoing (); |
284f4730 | 1359 | |
284f4730 | 1360 | nonundocount = 0; |
284f4730 | 1361 | this_command_key_count = 0; |
6321824f | 1362 | this_single_command_key_start = 0; |
284f4730 | 1363 | |
325309f5 | 1364 | if (NILP (Vmemory_full)) |
59aadc81 | 1365 | { |
10ffcb64 RS |
1366 | /* Make sure this hook runs after commands that get errors and |
1367 | throw to top level. */ | |
1368 | /* Note that the value cell will never directly contain nil | |
1369 | if the symbol is a local variable. */ | |
1370 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1371 | safe_run_hooks (Qpost_command_hook); | |
1372 | ||
1373 | /* If displaying a message, resize the echo area window to fit | |
1374 | that message's size exactly. */ | |
1375 | if (!NILP (echo_area_buffer[0])) | |
1376 | resize_echo_area_exactly (); | |
1377 | ||
1378 | if (!NILP (Vdeferred_action_list)) | |
1379 | call0 (Vdeferred_action_function); | |
1380 | ||
1381 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1382 | { | |
1383 | if (NILP (Vunread_command_events) | |
1384 | && NILP (Vunread_input_method_events) | |
1385 | && NILP (Vunread_post_input_method_events) | |
1386 | && NILP (Vexecuting_macro) | |
1387 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1388 | safe_run_hooks (Qpost_command_idle_hook); | |
1389 | } | |
59aadc81 RS |
1390 | } |
1391 | ||
10ffcb64 RS |
1392 | Vmemory_full = Qnil; |
1393 | ||
51d5a2c9 | 1394 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1395 | current_kboard->Vlast_command = Vthis_command; |
1396 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1397 | |
284f4730 JB |
1398 | while (1) |
1399 | { | |
788f89eb | 1400 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1401 | Fkill_emacs (Qnil); |
1402 | ||
284f4730 JB |
1403 | /* Make sure the current window's buffer is selected. */ |
1404 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1405 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1406 | ||
1407 | /* Display any malloc warning that just came out. Use while because | |
1408 | displaying one warning can cause another. */ | |
1409 | ||
1410 | while (pending_malloc_warning) | |
1411 | display_malloc_warning (); | |
1412 | ||
1413 | no_direct = 0; | |
1414 | ||
86e5706b RS |
1415 | Vdeactivate_mark = Qnil; |
1416 | ||
284f4730 | 1417 | /* If minibuffer on and echo area in use, |
00392ce6 | 1418 | wait a short time and redraw minibuffer. */ |
284f4730 | 1419 | |
7ee32cda | 1420 | if (minibuf_level |
985f9f66 | 1421 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1422 | && EQ (minibuf_window, echo_area_window) |
1423 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1424 | { |
f1bed6d8 RS |
1425 | /* Bind inhibit-quit to t so that C-g gets read in |
1426 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1427 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1428 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1429 | |
00392ce6 | 1430 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1431 | /* Clear the echo area. */ |
301738ed | 1432 | message2 (0, 0, 0); |
cdb9d665 | 1433 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1434 | |
db08707d RS |
1435 | unbind_to (count, Qnil); |
1436 | ||
e6aa7813 | 1437 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1438 | if (!NILP (Vquit_flag)) |
1439 | { | |
1440 | Vquit_flag = Qnil; | |
24597608 | 1441 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1442 | } |
1443 | } | |
1444 | ||
1445 | #ifdef C_ALLOCA | |
ff4b06d3 | 1446 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1447 | /* Since we can free the most stuff here. */ |
1448 | #endif /* C_ALLOCA */ | |
1449 | ||
8f805655 | 1450 | #if 0 |
8f805655 JB |
1451 | /* Select the frame that the last event came from. Usually, |
1452 | switch-frame events will take care of this, but if some lisp | |
1453 | code swallows a switch-frame event, we'll fix things up here. | |
1454 | Is this a good idea? */ | |
8c18cbfb | 1455 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1456 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1457 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1458 | #endif |
48e416d4 RS |
1459 | /* If it has changed current-menubar from previous value, |
1460 | really recompute the menubar from the value. */ | |
a646e520 RS |
1461 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1462 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1463 | call0 (Qrecompute_lucid_menubar); |
1464 | ||
71918b75 RS |
1465 | before_command_key_count = this_command_key_count; |
1466 | before_command_echo_length = echo_length (); | |
1467 | ||
d5eecefb RS |
1468 | Vthis_command = Qnil; |
1469 | real_this_command = Qnil; | |
d7437ef6 | 1470 | |
8f805655 | 1471 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1472 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1473 | Qnil, 0, 1, 1); |
8f805655 | 1474 | |
6fac1409 | 1475 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1476 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1477 | Fkill_emacs (Qnil); |
6fac1409 RS |
1478 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1479 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1480 | ||
8f805655 JB |
1481 | ++num_input_keys; |
1482 | ||
284f4730 JB |
1483 | /* Now we have read a key sequence of length I, |
1484 | or else I is 0 and we found end of file. */ | |
1485 | ||
1486 | if (i == 0) /* End of file -- happens only in */ | |
1487 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1488 | /* -1 means read_key_sequence got a menu that was rejected. |
1489 | Just loop around and read another command. */ | |
1490 | if (i == -1) | |
1491 | { | |
1492 | cancel_echoing (); | |
1493 | this_command_key_count = 0; | |
6321824f | 1494 | this_single_command_key_start = 0; |
ff4b06d3 | 1495 | goto finalize; |
dcc408a0 | 1496 | } |
284f4730 | 1497 | |
284f4730 JB |
1498 | last_command_char = keybuf[i - 1]; |
1499 | ||
75c0b143 RS |
1500 | /* If the previous command tried to force a specific window-start, |
1501 | forget about that, in case this command moves point far away | |
c422836d KH |
1502 | from that position. But also throw away beg_unchanged and |
1503 | end_unchanged information in that case, so that redisplay will | |
1504 | update the whole window properly. */ | |
1505 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1506 | { | |
9351ebd0 | 1507 | struct buffer *b; |
c422836d | 1508 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1509 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1510 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1511 | } |
75c0b143 | 1512 | |
284f4730 JB |
1513 | cmd = read_key_sequence_cmd; |
1514 | if (!NILP (Vexecuting_macro)) | |
1515 | { | |
1516 | if (!NILP (Vquit_flag)) | |
1517 | { | |
1518 | Vexecuting_macro = Qt; | |
1519 | QUIT; /* Make some noise. */ | |
1520 | /* Will return since macro now empty. */ | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1525 | cases identified below. */ |
86e5706b RS |
1526 | prev_buffer = current_buffer; |
1527 | prev_modiff = MODIFF; | |
8746da95 | 1528 | last_point_position = PT; |
18cd2eeb | 1529 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1530 | |
adf5cb9c KH |
1531 | /* By default, we adjust point to a boundary of a region that |
1532 | has such a property that should be treated intangible | |
1533 | (e.g. composition, display). But, some commands will set | |
1534 | this variable differently. */ | |
1535 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1536 | |
be2488ca GM |
1537 | /* Process filters and timers may have messed with deactivate-mark. |
1538 | reset it before we execute the command. */ | |
1539 | Vdeactivate_mark = Qnil; | |
1540 | ||
8b9940e6 KS |
1541 | /* Remap command through active keymaps */ |
1542 | Vthis_original_command = cmd; | |
a34cb674 | 1543 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1544 | { |
1545 | Lisp_Object cmd1; | |
a34cb674 | 1546 | if (cmd1 = Fremap_command (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1547 | cmd = cmd1; |
1548 | } | |
1549 | ||
284f4730 JB |
1550 | /* Execute the command. */ |
1551 | ||
d5eecefb RS |
1552 | Vthis_command = cmd; |
1553 | real_this_command = cmd; | |
a98ea3f9 RS |
1554 | /* Note that the value cell will never directly contain nil |
1555 | if the symbol is a local variable. */ | |
e98a93eb | 1556 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1557 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1558 | |
d5eecefb | 1559 | if (NILP (Vthis_command)) |
284f4730 JB |
1560 | { |
1561 | /* nil means key is undefined. */ | |
1562 | bitch_at_user (); | |
c5fdd383 | 1563 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1564 | update_mode_lines = 1; |
d8bcf58e | 1565 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1566 | } |
1567 | else | |
1568 | { | |
d8bcf58e | 1569 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1570 | { |
75045dcb RS |
1571 | /* In case we jump to directly_done. */ |
1572 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1573 | ||
284f4730 JB |
1574 | /* Recognize some common commands in common situations and |
1575 | do them directly. */ | |
d5eecefb | 1576 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1577 | { |
51ad8a68 | 1578 | struct Lisp_Char_Table *dp |
284f4730 | 1579 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1580 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1581 | SET_PT (PT + 1); |
0f7a8fee | 1582 | if ((dp |
82ba47d7 | 1583 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1584 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1585 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1586 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1587 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1588 | /* To extract the case of continuation on |
1589 | wide-column characters. */ | |
8458ede6 | 1590 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1591 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1592 | >= MODIFF) | |
598ba4c7 RS |
1593 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1594 | >= OVERLAY_MODIFF) | |
284f4730 | 1595 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1596 | == PT - 1) |
284f4730 JB |
1597 | && !windows_or_buffers_changed |
1598 | && EQ (current_buffer->selective_display, Qnil) | |
1599 | && !detect_input_pending () | |
962ae636 | 1600 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1601 | && NILP (Vexecuting_macro)) |
e35b6123 | 1602 | direct_output_forward_char (1); |
284f4730 JB |
1603 | goto directly_done; |
1604 | } | |
d5eecefb | 1605 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1606 | { |
51ad8a68 | 1607 | struct Lisp_Char_Table *dp |
284f4730 | 1608 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1609 | SET_PT (PT - 1); |
aaf35234 | 1610 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1611 | if ((dp |
ca873d73 | 1612 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1613 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1614 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1615 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1616 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1617 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1618 | >= MODIFF) | |
598ba4c7 RS |
1619 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1620 | >= OVERLAY_MODIFF) | |
284f4730 | 1621 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1622 | == PT + 1) |
284f4730 JB |
1623 | && !windows_or_buffers_changed |
1624 | && EQ (current_buffer->selective_display, Qnil) | |
1625 | && !detect_input_pending () | |
962ae636 | 1626 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1627 | && NILP (Vexecuting_macro)) |
e35b6123 | 1628 | direct_output_forward_char (-1); |
284f4730 JB |
1629 | goto directly_done; |
1630 | } | |
d5eecefb | 1631 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1632 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1633 | && INTEGERP (last_command_char)) |
284f4730 | 1634 | { |
89599794 | 1635 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1636 | int value; |
fc9cce4e RS |
1637 | if (NILP (Vexecuting_macro) |
1638 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1639 | { |
1640 | if (!nonundocount || nonundocount >= 20) | |
1641 | { | |
1642 | Fundo_boundary (); | |
1643 | nonundocount = 0; | |
1644 | } | |
1645 | nonundocount++; | |
1646 | } | |
7ee32cda | 1647 | |
fc9cce4e RS |
1648 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1649 | < MODIFF) | |
598ba4c7 RS |
1650 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1651 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1652 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1653 | != PT) | |
4c61f38e | 1654 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1655 | || windows_or_buffers_changed |
1656 | || !EQ (current_buffer->selective_display, Qnil) | |
1657 | || detect_input_pending () | |
962ae636 | 1658 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1659 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1660 | |
fc9cce4e | 1661 | value = internal_self_insert (c, 0); |
7ee32cda | 1662 | |
fc9cce4e RS |
1663 | if (value == 2) |
1664 | nonundocount = 0; | |
1665 | ||
7ee32cda GM |
1666 | /* VALUE == 1 when AFTER-CHANGE functions are |
1667 | installed which is the case most of the time | |
1668 | because FONT-LOCK installs one. */ | |
1669 | if (!lose && !value) | |
e35b6123 | 1670 | direct_output_for_insert (c); |
284f4730 JB |
1671 | goto directly_done; |
1672 | } | |
1673 | } | |
1674 | ||
1675 | /* Here for a command that isn't executed directly */ | |
1676 | ||
7ee32cda | 1677 | #ifdef HAVE_X_WINDOWS |
e1204d39 RS |
1678 | if (display_hourglass_p |
1679 | && NILP (Vexecuting_macro)) | |
526a058f | 1680 | start_hourglass (); |
7ee32cda GM |
1681 | #endif |
1682 | ||
284f4730 | 1683 | nonundocount = 0; |
d8bcf58e | 1684 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1685 | Fundo_boundary (); |
d5eecefb | 1686 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1687 | |
1688 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1689 | /* Do not check display_hourglass_p here, because |
1690 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1691 | hourglass cursor anyway. |
1692 | But don't cancel the hourglass within a macro | |
1693 | just because a command in the macro finishes. */ | |
1694 | if (NILP (Vexecuting_macro)) | |
1695 | cancel_hourglass (); | |
d0c48478 | 1696 | #endif |
284f4730 | 1697 | } |
a764a753 | 1698 | directly_done: ; |
75045dcb | 1699 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1700 | |
84ee6048 RS |
1701 | /* Note that the value cell will never directly contain nil |
1702 | if the symbol is a local variable. */ | |
1703 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1704 | safe_run_hooks (Qpost_command_hook); | |
1705 | ||
8f12e41d GM |
1706 | /* If displaying a message, resize the echo area window to fit |
1707 | that message's size exactly. */ | |
1708 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1709 | resize_echo_area_exactly (); |
8f12e41d | 1710 | |
84ee6048 RS |
1711 | if (!NILP (Vdeferred_action_list)) |
1712 | safe_run_hooks (Qdeferred_action_function); | |
1713 | ||
1714 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1715 | { | |
1716 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1717 | && NILP (Vunread_input_method_events) |
1718 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1719 | && NILP (Vexecuting_macro) |
1720 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1721 | safe_run_hooks (Qpost_command_idle_hook); | |
1722 | } | |
1723 | ||
284f4730 | 1724 | /* If there is a prefix argument, |
6c7178b9 KH |
1725 | 1) We don't want Vlast_command to be ``universal-argument'' |
1726 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1727 | 2) we want to leave echoing on so that the prefix will be |
1728 | echoed as part of this key sequence, so don't call | |
1729 | cancel_echoing, and | |
1730 | 3) we want to leave this_command_key_count non-zero, so that | |
1731 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1732 | not echo it a second time. |
1733 | ||
1734 | If the command didn't actually create a prefix arg, | |
1735 | but is merely a frame event that is transparent to prefix args, | |
1736 | then the above doesn't apply. */ | |
1737 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1738 | { |
d5eecefb RS |
1739 | current_kboard->Vlast_command = Vthis_command; |
1740 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1741 | cancel_echoing (); |
1742 | this_command_key_count = 0; | |
6321824f | 1743 | this_single_command_key_start = 0; |
284f4730 | 1744 | } |
86e5706b | 1745 | |
88ce066e | 1746 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1747 | { |
1748 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1749 | { | |
2e1a49ad SM |
1750 | /* We could also call `deactivate'mark'. */ |
1751 | if (EQ (Vtransient_mark_mode, Qlambda)) | |
1752 | Vtransient_mark_mode = Qnil; | |
1753 | else | |
1754 | { | |
1755 | current_buffer->mark_active = Qnil; | |
1756 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1757 | } | |
86e5706b RS |
1758 | } |
1759 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1760 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1761 | } | |
ff4b06d3 KH |
1762 | |
1763 | finalize: | |
adf5cb9c KH |
1764 | |
1765 | if (current_buffer == prev_buffer | |
1766 | && last_point_position != PT | |
1767 | && NILP (Vdisable_point_adjustment) | |
1768 | && NILP (Vglobal_disable_point_adjustment)) | |
1769 | adjust_point_for_property (last_point_position); | |
1770 | ||
ff4b06d3 KH |
1771 | /* Install chars successfully executed in kbd macro. */ |
1772 | ||
d8bcf58e KH |
1773 | if (!NILP (current_kboard->defining_kbd_macro) |
1774 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1775 | finalize_kbd_macro_chars (); |
1776 | ||
c5fdd383 | 1777 | #ifdef MULTI_KBOARD |
604ccd1d | 1778 | if (!was_locked) |
1e8bd3da | 1779 | any_kboard_state (); |
ff4b06d3 | 1780 | #endif |
284f4730 JB |
1781 | } |
1782 | } | |
1c9784c9 | 1783 | |
adf5cb9c KH |
1784 | extern Lisp_Object Qcomposition, Qdisplay; |
1785 | ||
1786 | /* Adjust point to a boundary of a region that has such a property | |
1787 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1788 | `composition', `display' and `invisible' properties. |
1789 | LAST_PT is the last position of point. */ | |
adf5cb9c KH |
1790 | |
1791 | static void | |
1792 | adjust_point_for_property (last_pt) | |
1793 | int last_pt; | |
1794 | { | |
7e16ef60 SM |
1795 | int beg, end; |
1796 | Lisp_Object val, overlay, tmp; | |
1797 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
adf5cb9c | 1798 | |
7e16ef60 | 1799 | while (check_composition || check_display || check_invisible) |
adf5cb9c KH |
1800 | { |
1801 | if (check_composition | |
1802 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1803 | && get_property_and_range (PT, Qcomposition, &val, &beg, &end, Qnil) |
1804 | && COMPOSITION_VALID_P (beg, end, val) | |
1805 | && beg < PT /* && end > PT <- It's always the case. */ | |
1806 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 1807 | { |
7e16ef60 | 1808 | SET_PT (PT < last_pt ? beg : end); |
adf5cb9c | 1809 | check_display = 1; |
7e16ef60 | 1810 | check_invisible = 1; |
adf5cb9c KH |
1811 | } |
1812 | check_composition = 0; | |
1813 | if (check_display | |
1814 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1815 | && !NILP (val = get_char_property_and_overlay |
1816 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 1817 | && display_prop_intangible_p (val) |
7e16ef60 SM |
1818 | && (!OVERLAYP (overlay) |
1819 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
1820 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
1821 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
1822 | && beg < PT /* && end > PT <- It's always the case. */ | |
1823 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 1824 | { |
7e16ef60 | 1825 | SET_PT (PT < last_pt ? beg : end); |
adf5cb9c | 1826 | check_composition = 1; |
7e16ef60 | 1827 | check_invisible = 1; |
adf5cb9c KH |
1828 | } |
1829 | check_display = 0; | |
7e16ef60 SM |
1830 | if (check_invisible |
1831 | && PT > BEGV && PT < ZV | |
1832 | && !NILP (val = get_char_property_and_overlay | |
1833 | (make_number (PT), Qinvisible, Qnil, &overlay)) | |
1834 | && TEXT_PROP_MEANS_INVISIBLE (val) | |
1835 | && (tmp = Fprevious_single_char_property_change | |
1836 | (make_number (PT + 1), Qinvisible, Qnil, Qnil), | |
1837 | beg = NILP (tmp) ? BEGV : XFASTINT (tmp), | |
1838 | beg < PT) | |
1839 | && (tmp = Fnext_single_char_property_change | |
1840 | (make_number (PT), Qinvisible, Qnil, Qnil), | |
3a6607a2 | 1841 | end = NILP (tmp) ? ZV : XFASTINT (tmp), |
7e16ef60 SM |
1842 | (last_pt <= beg || last_pt >= end))) |
1843 | { | |
1844 | SET_PT (PT < last_pt ? beg : end); | |
1845 | check_composition = 1; | |
1846 | check_display = 1; | |
1847 | } | |
1848 | check_invisible = 0; | |
adf5cb9c KH |
1849 | } |
1850 | } | |
1851 | ||
0bc3db2b RS |
1852 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1853 | ||
1854 | static Lisp_Object | |
1855 | safe_run_hooks_1 (hook) | |
1856 | Lisp_Object hook; | |
1857 | { | |
1858 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1859 | } | |
1860 | ||
1861 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1862 | ||
1863 | static Lisp_Object | |
1864 | safe_run_hooks_error (data) | |
1865 | Lisp_Object data; | |
1866 | { | |
30690496 | 1867 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1868 | } |
1869 | ||
1c9784c9 KH |
1870 | /* If we get an error while running the hook, cause the hook variable |
1871 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1872 | to mysteriously evaporate. */ | |
0bc3db2b | 1873 | |
68f297c5 | 1874 | void |
1c9784c9 | 1875 | safe_run_hooks (hook) |
a98ea3f9 | 1876 | Lisp_Object hook; |
1c9784c9 | 1877 | { |
aed13378 | 1878 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
1879 | specbind (Qinhibit_quit, hook); |
1880 | ||
e702932d | 1881 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1882 | |
1883 | unbind_to (count, Qnil); | |
1884 | } | |
8a9f5d3c | 1885 | |
284f4730 | 1886 | \f |
8a9f5d3c GM |
1887 | /* Number of seconds between polling for input. This is a Lisp |
1888 | variable that can be bound. */ | |
1889 | ||
31ade731 | 1890 | EMACS_INT polling_period; |
284f4730 | 1891 | |
eb8c3be9 | 1892 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1893 | |
284f4730 JB |
1894 | int poll_suppress_count; |
1895 | ||
8a9f5d3c GM |
1896 | /* Asynchronous timer for polling. */ |
1897 | ||
1898 | struct atimer *poll_timer; | |
1899 | ||
284f4730 | 1900 | |
36922b18 RS |
1901 | #ifdef POLL_FOR_INPUT |
1902 | ||
8a9f5d3c GM |
1903 | /* Poll for input, so what we catch a C-g if it comes in. This |
1904 | function is called from x_make_frame_visible, see comment | |
1905 | there. */ | |
284f4730 | 1906 | |
8a9f5d3c GM |
1907 | void |
1908 | poll_for_input_1 () | |
284f4730 | 1909 | { |
9ac0d9e0 JB |
1910 | if (interrupt_input_blocked == 0 |
1911 | && !waiting_for_input) | |
1912 | read_avail_input (0); | |
284f4730 JB |
1913 | } |
1914 | ||
8a9f5d3c GM |
1915 | /* Timer callback function for poll_timer. TIMER is equal to |
1916 | poll_timer. */ | |
1917 | ||
1918 | void | |
1919 | poll_for_input (timer) | |
1920 | struct atimer *timer; | |
1921 | { | |
1922 | if (poll_suppress_count == 0) | |
1923 | poll_for_input_1 (); | |
1924 | } | |
1925 | ||
1926 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1927 | |
1928 | /* Begin signals to poll for input, if they are appropriate. | |
1929 | This function is called unconditionally from various places. */ | |
1930 | ||
07a59269 | 1931 | void |
284f4730 JB |
1932 | start_polling () |
1933 | { | |
1934 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1935 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1936 | { |
8a9f5d3c GM |
1937 | /* Turn alarm handling on unconditionally. It might have |
1938 | been turned off in process.c. */ | |
1939 | turn_on_atimers (1); | |
1940 | ||
1941 | /* If poll timer doesn't exist, are we need one with | |
1942 | a different interval, start a new one. */ | |
1943 | if (poll_timer == NULL | |
1944 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1945 | { |
8a9f5d3c GM |
1946 | EMACS_TIME interval; |
1947 | ||
1948 | if (poll_timer) | |
1949 | cancel_atimer (poll_timer); | |
1950 | ||
1951 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1952 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1953 | poll_for_input, NULL); | |
284f4730 | 1954 | } |
8a9f5d3c GM |
1955 | |
1956 | /* Let the timer's callback function poll for input | |
1957 | if this becomes zero. */ | |
1958 | --poll_suppress_count; | |
284f4730 JB |
1959 | } |
1960 | #endif | |
1961 | } | |
1962 | ||
1d3195db RS |
1963 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1964 | ||
1965 | int | |
1966 | input_polling_used () | |
1967 | { | |
1968 | #ifdef POLL_FOR_INPUT | |
1969 | return read_socket_hook && !interrupt_input; | |
1970 | #else | |
1971 | return 0; | |
1972 | #endif | |
1973 | } | |
1974 | ||
284f4730 JB |
1975 | /* Turn off polling. */ |
1976 | ||
07a59269 | 1977 | void |
284f4730 JB |
1978 | stop_polling () |
1979 | { | |
1980 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1981 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1982 | ++poll_suppress_count; |
284f4730 JB |
1983 | #endif |
1984 | } | |
fe8aeef3 RS |
1985 | |
1986 | /* Set the value of poll_suppress_count to COUNT | |
1987 | and start or stop polling accordingly. */ | |
1988 | ||
1989 | void | |
1990 | set_poll_suppress_count (count) | |
1991 | int count; | |
1992 | { | |
1993 | #ifdef POLL_FOR_INPUT | |
1994 | if (count == 0 && poll_suppress_count != 0) | |
1995 | { | |
1996 | poll_suppress_count = 1; | |
1997 | start_polling (); | |
1998 | } | |
1999 | else if (count != 0 && poll_suppress_count == 0) | |
2000 | { | |
2001 | stop_polling (); | |
2002 | } | |
2003 | poll_suppress_count = count; | |
2004 | #endif | |
2005 | } | |
f4eef8b4 | 2006 | |
d0a57728 RS |
2007 | /* Bind polling_period to a value at least N. |
2008 | But don't decrease it. */ | |
2009 | ||
07a59269 | 2010 | void |
f4eef8b4 RS |
2011 | bind_polling_period (n) |
2012 | int n; | |
2013 | { | |
2014 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2015 | int new = polling_period; |
2016 | ||
2017 | if (n > new) | |
2018 | new = n; | |
2019 | ||
6fe007f7 | 2020 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2021 | stop_polling (); |
d0a57728 RS |
2022 | specbind (Qpolling_period, make_number (new)); |
2023 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2024 | start_polling (); |
2025 | #endif | |
2026 | } | |
284f4730 | 2027 | \f |
6da3dd3a RS |
2028 | /* Apply the control modifier to CHARACTER. */ |
2029 | ||
faf5e407 JB |
2030 | int |
2031 | make_ctrl_char (c) | |
2032 | int c; | |
2033 | { | |
d205953b JB |
2034 | /* Save the upper bits here. */ |
2035 | int upper = c & ~0177; | |
2036 | ||
2037 | c &= 0177; | |
2038 | ||
2039 | /* Everything in the columns containing the upper-case letters | |
2040 | denotes a control character. */ | |
2041 | if (c >= 0100 && c < 0140) | |
2042 | { | |
2043 | int oc = c; | |
2044 | c &= ~0140; | |
2045 | /* Set the shift modifier for a control char | |
2046 | made from a shifted letter. But only for letters! */ | |
2047 | if (oc >= 'A' && oc <= 'Z') | |
2048 | c |= shift_modifier; | |
2049 | } | |
2050 | ||
2051 | /* The lower-case letters denote control characters too. */ | |
2052 | else if (c >= 'a' && c <= 'z') | |
2053 | c &= ~0140; | |
2054 | ||
2055 | /* Include the bits for control and shift | |
2056 | only if the basic ASCII code can't indicate them. */ | |
2057 | else if (c >= ' ') | |
2058 | c |= ctrl_modifier; | |
2059 | ||
2060 | /* Replace the high bits. */ | |
2061 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2062 | |
2063 | return c; | |
2064 | } | |
2065 | ||
d4e68eea GM |
2066 | /* Display help echo in the echo area. |
2067 | ||
8dfd92c9 GM |
2068 | HELP a string means display that string, HELP nil means clear the |
2069 | help echo. If HELP is a function, call it with OBJECT and POS as | |
2070 | arguments; the function should return a help string or nil for | |
2071 | none. For all other types of HELP evaluate it to obtain a string. | |
2072 | ||
2190735a GM |
2073 | WINDOW is the window in which the help was generated, if any. |
2074 | It is nil if not in a window. | |
2075 | ||
5b2ec2d0 GM |
2076 | If OBJECT is a buffer, POS is the position in the buffer where the |
2077 | `help-echo' text property was found. | |
2078 | ||
2079 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2080 | and POS is the position in the overlay's buffer under the mouse. | |
2081 | ||
2082 | If OBJECT is a string (an overlay string or a string displayed with | |
2083 | the `display' property). POS is the position in that string under | |
2084 | the mouse. | |
d4e68eea | 2085 | |
27fd22dc | 2086 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2087 | echo overwrites a keystroke echo currently displayed in the echo |
2088 | area. | |
2089 | ||
8dfd92c9 GM |
2090 | Note: this function may only be called with HELP nil or a string |
2091 | from X code running asynchronously. */ | |
d4e68eea | 2092 | |
31f84d03 | 2093 | void |
2190735a GM |
2094 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2095 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2096 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2097 | { |
8dfd92c9 | 2098 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2099 | { |
8dfd92c9 GM |
2100 | if (FUNCTIONP (help)) |
2101 | { | |
2190735a | 2102 | Lisp_Object args[4]; |
8dfd92c9 | 2103 | args[0] = help; |
2190735a GM |
2104 | args[1] = window; |
2105 | args[2] = object; | |
2106 | args[3] = pos; | |
1db0076e | 2107 | help = safe_call (4, args); |
8dfd92c9 GM |
2108 | } |
2109 | else | |
1db0076e | 2110 | help = safe_eval (help); |
8dfd92c9 GM |
2111 | |
2112 | if (!STRINGP (help)) | |
d4e68eea | 2113 | return; |
31f84d03 SM |
2114 | } |
2115 | ||
8dfd92c9 | 2116 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2117 | { |
2118 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2119 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2120 | else if (/* Don't overwrite minibuffer contents. */ |
2121 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2122 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2123 | && (NILP (echo_message_buffer) |
2124 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2125 | /* Don't overwrite a prompt. */ |
2126 | && !cursor_in_echo_area) | |
2127 | { | |
8dfd92c9 | 2128 | if (STRINGP (help)) |
d4e68eea | 2129 | { |
331379bf | 2130 | int count = SPECPDL_INDEX (); |
f0c1cc56 GM |
2131 | |
2132 | if (!help_echo_showing_p) | |
2133 | Vpre_help_message = current_message (); | |
2134 | ||
d4e68eea | 2135 | specbind (Qmessage_truncate_lines, Qt); |
d5db4077 | 2136 | message3_nolog (help, SBYTES (help), |
8dfd92c9 | 2137 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2138 | unbind_to (count, Qnil); |
2139 | } | |
f0c1cc56 GM |
2140 | else if (STRINGP (Vpre_help_message)) |
2141 | { | |
2142 | message3_nolog (Vpre_help_message, | |
d5db4077 | 2143 | SBYTES (Vpre_help_message), |
f0c1cc56 GM |
2144 | STRING_MULTIBYTE (Vpre_help_message)); |
2145 | Vpre_help_message = Qnil; | |
2146 | } | |
d4e68eea | 2147 | else |
f0c1cc56 | 2148 | message (0); |
d4e68eea | 2149 | } |
5295a500 GM |
2150 | |
2151 | help_echo_showing_p = STRINGP (help); | |
d4e68eea | 2152 | } |
31f84d03 SM |
2153 | } |
2154 | ||
faf5e407 JB |
2155 | |
2156 | \f | |
284f4730 JB |
2157 | /* Input of single characters from keyboard */ |
2158 | ||
2159 | Lisp_Object print_help (); | |
2160 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2161 | static void record_char (); |
284f4730 | 2162 | |
c5fdd383 KH |
2163 | #ifdef MULTI_KBOARD |
2164 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2165 | #endif |
beecf6a1 | 2166 | |
184c3d81 RS |
2167 | #define STOP_POLLING \ |
2168 | do { if (! polling_stopped_here) stop_polling (); \ | |
2169 | polling_stopped_here = 1; } while (0) | |
2170 | ||
2171 | #define RESUME_POLLING \ | |
2172 | do { if (polling_stopped_here) start_polling (); \ | |
2173 | polling_stopped_here = 0; } while (0) | |
2174 | ||
284f4730 JB |
2175 | /* read a character from the keyboard; call the redisplay if needed */ |
2176 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2177 | -1 means do not do redisplay, but do do autosaving. | |
2178 | 1 means do both. */ | |
2179 | ||
7d6de002 RS |
2180 | /* The arguments MAPS and NMAPS are for menu prompting. |
2181 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2182 | ||
2183 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2184 | the first event of a key sequence (or not reading a key sequence). |
2185 | If PREV_EVENT is t, that is a "magic" value that says | |
2186 | not to run input methods, but in other respects to act as if | |
2187 | not reading a key sequence. | |
7d6de002 | 2188 | |
83d68044 | 2189 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2190 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2191 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2192 | |
2193 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2194 | |
284f4730 | 2195 | Lisp_Object |
7d6de002 | 2196 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2197 | int commandflag; |
7d6de002 RS |
2198 | int nmaps; |
2199 | Lisp_Object *maps; | |
2200 | Lisp_Object prev_event; | |
2201 | int *used_mouse_menu; | |
284f4730 | 2202 | { |
8c907a56 | 2203 | volatile Lisp_Object c; |
284f4730 | 2204 | int count; |
410d4de9 | 2205 | jmp_buf local_getcjmp; |
284f4730 | 2206 | jmp_buf save_jump; |
8c907a56 | 2207 | volatile int key_already_recorded = 0; |
017c7cb6 | 2208 | Lisp_Object tem, save; |
8c907a56 GM |
2209 | volatile Lisp_Object previous_echo_area_message; |
2210 | volatile Lisp_Object also_record; | |
2211 | volatile int reread; | |
d5eecefb | 2212 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2213 | EMACS_TIME last_idle_start; |
184c3d81 | 2214 | int polling_stopped_here = 0; |
7c3bc944 | 2215 | |
e4fe371d | 2216 | also_record = Qnil; |
284f4730 | 2217 | |
71918b75 RS |
2218 | before_command_key_count = this_command_key_count; |
2219 | before_command_echo_length = echo_length (); | |
ef6661f7 | 2220 | c = Qnil; |
7ee32cda | 2221 | previous_echo_area_message = Qnil; |
71918b75 | 2222 | |
7ee32cda | 2223 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2224 | |
7f07d5ca RS |
2225 | retry: |
2226 | ||
7d18f9ae RS |
2227 | reread = 0; |
2228 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2229 | { |
7539e11f | 2230 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2231 | Vunread_post_input_method_events |
7539e11f | 2232 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2233 | |
2479e91e RS |
2234 | /* Undo what read_char_x_menu_prompt did when it unread |
2235 | additional keys returned by Fx_popup_menu. */ | |
2236 | if (CONSP (c) | |
7539e11f KR |
2237 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2238 | && NILP (XCDR (c))) | |
2239 | c = XCAR (c); | |
2479e91e | 2240 | |
7d18f9ae RS |
2241 | reread = 1; |
2242 | goto reread_first; | |
284f4730 JB |
2243 | } |
2244 | ||
86e5706b RS |
2245 | if (unread_command_char != -1) |
2246 | { | |
18cd2eeb | 2247 | XSETINT (c, unread_command_char); |
86e5706b RS |
2248 | unread_command_char = -1; |
2249 | ||
7d18f9ae RS |
2250 | reread = 1; |
2251 | goto reread_first; | |
2252 | } | |
2253 | ||
2254 | if (CONSP (Vunread_command_events)) | |
2255 | { | |
7539e11f KR |
2256 | c = XCAR (Vunread_command_events); |
2257 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2258 | |
2259 | /* Undo what read_char_x_menu_prompt did when it unread | |
2260 | additional keys returned by Fx_popup_menu. */ | |
2261 | if (CONSP (c) | |
f4e05d97 GM |
2262 | && EQ (XCDR (c), Qdisabled) |
2263 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2264 | c = XCAR (c); |
f4e05d97 | 2265 | |
d17e49a8 GM |
2266 | /* If the queued event is something that used the mouse, |
2267 | set used_mouse_menu accordingly. */ | |
2268 | if (used_mouse_menu | |
2269 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2270 | *used_mouse_menu = 1; | |
2271 | ||
7d18f9ae RS |
2272 | reread = 1; |
2273 | goto reread_for_input_method; | |
2274 | } | |
2275 | ||
2276 | if (CONSP (Vunread_input_method_events)) | |
2277 | { | |
7539e11f KR |
2278 | c = XCAR (Vunread_input_method_events); |
2279 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2280 | |
2281 | /* Undo what read_char_x_menu_prompt did when it unread | |
2282 | additional keys returned by Fx_popup_menu. */ | |
2283 | if (CONSP (c) | |
7539e11f KR |
2284 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2285 | && NILP (XCDR (c))) | |
2286 | c = XCAR (c); | |
7d18f9ae RS |
2287 | reread = 1; |
2288 | goto reread_for_input_method; | |
86e5706b RS |
2289 | } |
2290 | ||
71918b75 RS |
2291 | /* If there is no function key translated before |
2292 | reset-this-command-lengths takes effect, forget about it. */ | |
2293 | before_command_restore_flag = 0; | |
2294 | ||
284f4730 JB |
2295 | if (!NILP (Vexecuting_macro)) |
2296 | { | |
fce33686 JB |
2297 | /* We set this to Qmacro; since that's not a frame, nobody will |
2298 | try to switch frames on us, and the selected window will | |
2299 | remain unchanged. | |
2300 | ||
2301 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2302 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2303 | real event came from. Normally, a switch-frame event selects |
2304 | internal_last_event_frame after each command is read, but | |
2305 | events read from a macro should never cause a new frame to be | |
2306 | selected. */ | |
4c52b668 | 2307 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2308 | |
663258f2 JB |
2309 | /* Exit the macro if we are at the end. |
2310 | Also, some things replace the macro with t | |
2311 | to force an early exit. */ | |
2312 | if (EQ (Vexecuting_macro, Qt) | |
2313 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2314 | { |
18cd2eeb | 2315 | XSETINT (c, -1); |
184c3d81 | 2316 | goto exit; |
284f4730 | 2317 | } |
df0f2ba1 | 2318 | |
284f4730 | 2319 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2320 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2321 | && (XINT (c) & 0x80)) |
bb9e9bed | 2322 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2323 | |
284f4730 JB |
2324 | executing_macro_index++; |
2325 | ||
2326 | goto from_macro; | |
2327 | } | |
2328 | ||
cd21b839 JB |
2329 | if (!NILP (unread_switch_frame)) |
2330 | { | |
2331 | c = unread_switch_frame; | |
2332 | unread_switch_frame = Qnil; | |
2333 | ||
2334 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2335 | again, so we do not set `reread'. */ |
f4255cd1 | 2336 | goto reread_first; |
cd21b839 JB |
2337 | } |
2338 | ||
adc1d5c8 | 2339 | /* if redisplay was requested */ |
6e4e64a8 RS |
2340 | if (commandflag >= 0) |
2341 | { | |
adc1d5c8 RS |
2342 | /* If there is pending input, process any events which are not |
2343 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2344 | if (input_pending |
2345 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2346 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2347 | |
adc1d5c8 RS |
2348 | /* Redisplay if no pending input. */ |
2349 | while (!input_pending) | |
2350 | { | |
5295a500 | 2351 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2352 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2353 | else |
2354 | redisplay (); | |
adc1d5c8 RS |
2355 | |
2356 | if (!input_pending) | |
2357 | /* Normal case: no input arrived during redisplay. */ | |
2358 | break; | |
2359 | ||
2360 | /* Input arrived and pre-empted redisplay. | |
2361 | Process any events which are not user-visible. */ | |
2362 | swallow_events (0); | |
2363 | /* If that cleared input_pending, try again to redisplay. */ | |
2364 | } | |
6e4e64a8 | 2365 | } |
e9bf89a0 | 2366 | |
59a84f8e GM |
2367 | /* Message turns off echoing unless more keystrokes turn it on again. |
2368 | ||
2369 | The code in 20.x for the condition was | |
2370 | ||
2371 | 1. echo_area_glyphs && *echo_area_glyphs | |
2372 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2373 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2374 | ||
2375 | (1) means there's a current message displayed | |
2376 | ||
2377 | (2) means it's not the message from echoing from the current | |
2378 | kboard. | |
2379 | ||
2380 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause | |
2381 | is set to a non-null value. This is done in read_char and it is | |
2382 | set to echo_area_glyphs after a call to echo_char. That means | |
2383 | ok_to_echo_at_next_pause is either null or | |
2384 | current_kboard->echobuf with the appropriate current_kboard at | |
2385 | that time. | |
2386 | ||
2387 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2388 | must be either null, or the current message isn't from echoing at | |
2389 | all, or it's from echoing from a different kboard than the | |
2390 | current one. */ | |
2391 | ||
27fd22dc | 2392 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2393 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2394 | && (/* And it's either not from echoing. */ |
2395 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2396 | /* Or it's an echo from a different kboard. */ | |
2397 | || echo_kboard != current_kboard | |
2398 | /* Or we explicitly allow overwriting whatever there is. */ | |
2399 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2400 | cancel_echoing (); |
410d4de9 | 2401 | else |
410d4de9 | 2402 | echo_dash (); |
59a84f8e | 2403 | |
410d4de9 RS |
2404 | /* Try reading a character via menu prompting in the minibuf. |
2405 | Try this before the sit-for, because the sit-for | |
2406 | would do the wrong thing if we are supposed to do | |
2407 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2408 | after a mouse event so don't try a minibuf menu. */ | |
2409 | c = Qnil; | |
2410 | if (nmaps > 0 && INTERACTIVE | |
2411 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2412 | /* Don't bring up a menu if we already have another event. */ | |
2413 | && NILP (Vunread_command_events) | |
2414 | && unread_command_char < 0 | |
4ec4ed6a | 2415 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2416 | { |
2417 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2418 | if (! NILP (c)) | |
2419 | { | |
2420 | key_already_recorded = 1; | |
2421 | goto non_reread_1; | |
2422 | } | |
2423 | } | |
284f4730 | 2424 | |
410d4de9 RS |
2425 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2426 | We will do that below, temporarily for short sections of code, | |
2427 | when appropriate. local_getcjmp must be in effect | |
2428 | around any call to sit_for or kbd_buffer_get_event; | |
2429 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2430 | |
410d4de9 | 2431 | if (_setjmp (local_getcjmp)) |
284f4730 | 2432 | { |
18cd2eeb | 2433 | XSETINT (c, quit_char); |
788f89eb | 2434 | internal_last_event_frame = selected_frame; |
4c52b668 | 2435 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2436 | /* If we report the quit char as an event, |
2437 | don't do so more than once. */ | |
2438 | if (!NILP (Vinhibit_quit)) | |
2439 | Vquit_flag = Qnil; | |
284f4730 | 2440 | |
c5fdd383 | 2441 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2442 | { |
788f89eb | 2443 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2444 | if (kb != current_kboard) |
df0f2ba1 | 2445 | { |
f3fbd155 | 2446 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2447 | /* We shouldn't get here if we were in single-kboard mode! */ |
2448 | if (single_kboard) | |
df0f2ba1 | 2449 | abort (); |
f3fbd155 KR |
2450 | if (CONSP (link)) |
2451 | { | |
2452 | while (CONSP (XCDR (link))) | |
2453 | link = XCDR (link); | |
2454 | if (!NILP (XCDR (link))) | |
2455 | abort (); | |
2456 | } | |
2457 | if (!CONSP (link)) | |
2458 | kb->kbd_queue = Fcons (c, Qnil); | |
2459 | else | |
2460 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2461 | kb->kbd_queue_has_data = 1; |
2462 | current_kboard = kb; | |
ef6661f7 RS |
2463 | /* This is going to exit from read_char |
2464 | so we had better get rid of this frame's stuff. */ | |
2465 | UNGCPRO; | |
c5fdd383 | 2466 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2467 | } |
2468 | } | |
2469 | #endif | |
284f4730 JB |
2470 | goto non_reread; |
2471 | } | |
2472 | ||
d9d4c147 KH |
2473 | timer_start_idle (); |
2474 | ||
284f4730 JB |
2475 | /* If in middle of key sequence and minibuffer not active, |
2476 | start echoing if enough time elapses. */ | |
410d4de9 | 2477 | |
7ee32cda GM |
2478 | if (minibuf_level == 0 |
2479 | && !current_kboard->immediate_echo | |
6c6083a9 | 2480 | && this_command_key_count > 0 |
27203ead | 2481 | && ! noninteractive |
f2647d04 DL |
2482 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2483 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2484 | && (/* No message. */ |
2485 | NILP (echo_area_buffer[0]) | |
2486 | /* Or empty message. */ | |
2487 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2488 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2489 | /* Or already echoing from same kboard. */ | |
2490 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2491 | /* Or not echoing before and echoing allowed. */ | |
2492 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2493 | { |
2494 | Lisp_Object tem0; | |
985f9f66 | 2495 | |
7d6de002 RS |
2496 | /* After a mouse event, start echoing right away. |
2497 | This is because we are probably about to display a menu, | |
2498 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2499 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2500 | echo_now (); |
7d6de002 RS |
2501 | else |
2502 | { | |
39aab679 DL |
2503 | int sec, usec; |
2504 | double duration = extract_float (Vecho_keystrokes); | |
2505 | sec = (int) duration; | |
15fa88ab | 2506 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2507 | save_getcjmp (save_jump); |
2508 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2509 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2510 | restore_getcjmp (save_jump); |
303b5b3f RS |
2511 | if (EQ (tem0, Qt) |
2512 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2513 | echo_now (); |
7d6de002 | 2514 | } |
284f4730 JB |
2515 | } |
2516 | ||
410d4de9 | 2517 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2518 | |
2519 | if (commandflag != 0 | |
2520 | && auto_save_interval > 0 | |
c43b1734 | 2521 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2522 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2523 | { |
284f4730 | 2524 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2525 | /* Hooks can actually change some buffers in auto save. */ |
2526 | redisplay (); | |
284f4730 JB |
2527 | } |
2528 | ||
8150596a | 2529 | /* Try reading using an X menu. |
24597608 RS |
2530 | This is never confused with reading using the minibuf |
2531 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2532 | does not pass on any keymaps. */ | |
410d4de9 | 2533 | |
24597608 | 2534 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2535 | && !NILP (prev_event) |
2536 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2537 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2538 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2539 | /* Don't bring up a menu if we already have another event. */ |
2540 | && NILP (Vunread_command_events) | |
b8556aee | 2541 | && unread_command_char < 0) |
8eb4d8ef RS |
2542 | { |
2543 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2544 | ||
2545 | /* Now that we have read an event, Emacs is not idle. */ | |
2546 | timer_stop_idle (); | |
2547 | ||
184c3d81 | 2548 | goto exit; |
8eb4d8ef | 2549 | } |
7d6de002 | 2550 | |
410d4de9 RS |
2551 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2552 | ||
26c1639e | 2553 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2554 | { |
2555 | int delay_level, buffer_size; | |
2556 | ||
410d4de9 RS |
2557 | /* Slow down auto saves logarithmically in size of current buffer, |
2558 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2559 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2560 | last_non_minibuf_size = Z - BEG; | |
2561 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2562 | delay_level = 0; | |
2563 | while (buffer_size > 64) | |
2564 | delay_level++, buffer_size -= buffer_size >> 2; | |
2565 | if (delay_level < 4) delay_level = 4; | |
2566 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2567 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2568 | ||
2569 | /* Auto save if enough time goes by without input. */ | |
2570 | if (commandflag != 0 | |
c43b1734 | 2571 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2572 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2573 | && XINT (Vauto_save_timeout) > 0) |
2574 | { | |
2575 | Lisp_Object tem0; | |
410d4de9 RS |
2576 | |
2577 | save_getcjmp (save_jump); | |
2578 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2579 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2580 | 0, 1, 1, 0); |
410d4de9 RS |
2581 | restore_getcjmp (save_jump); |
2582 | ||
303b5b3f RS |
2583 | if (EQ (tem0, Qt) |
2584 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2585 | { |
7d6de002 | 2586 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2587 | |
2588 | /* If we have auto-saved and there is still no input | |
2589 | available, garbage collect if there has been enough | |
2590 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2591 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2592 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2593 | Fgarbage_collect (); |
410d4de9 | 2594 | |
ef8fd672 | 2595 | redisplay (); |
7d6de002 RS |
2596 | } |
2597 | } | |
2598 | } | |
284f4730 | 2599 | |
303b5b3f RS |
2600 | /* If this has become non-nil here, it has been set by a timer |
2601 | or sentinel or filter. */ | |
2602 | if (CONSP (Vunread_command_events)) | |
2603 | { | |
7539e11f KR |
2604 | c = XCAR (Vunread_command_events); |
2605 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2606 | } |
2607 | ||
410d4de9 RS |
2608 | /* Read something from current KBOARD's side queue, if possible. */ |
2609 | ||
beecf6a1 | 2610 | if (NILP (c)) |
1e12dd87 | 2611 | { |
c5fdd383 | 2612 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2613 | { |
c5fdd383 | 2614 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2615 | abort (); |
7539e11f | 2616 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2617 | current_kboard->kbd_queue |
7539e11f | 2618 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2619 | if (NILP (current_kboard->kbd_queue)) |
2620 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2621 | input_pending = readable_events (0); |
4c52b668 KH |
2622 | if (EVENT_HAS_PARAMETERS (c) |
2623 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2624 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2625 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2626 | } |
1e8bd3da RS |
2627 | } |
2628 | ||
c5fdd383 | 2629 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2630 | /* If current_kboard's side queue is empty check the other kboards. |
2631 | If one of them has data that we have not yet seen here, | |
2632 | switch to it and process the data waiting for it. | |
2633 | ||
2634 | Note: if the events queued up for another kboard | |
2635 | have already been seen here, and therefore are not a complete command, | |
2636 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2637 | That's to avoid an infinite loop switching between kboards here. */ | |
2638 | if (NILP (c) && !single_kboard) | |
2639 | { | |
2640 | KBOARD *kb; | |
2641 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2642 | if (kb->kbd_queue_has_data) | |
2643 | { | |
2644 | current_kboard = kb; | |
ef6661f7 RS |
2645 | /* This is going to exit from read_char |
2646 | so we had better get rid of this frame's stuff. */ | |
2647 | UNGCPRO; | |
1e8bd3da RS |
2648 | longjmp (wrong_kboard_jmpbuf, 1); |
2649 | } | |
2650 | } | |
df0f2ba1 KH |
2651 | #endif |
2652 | ||
410d4de9 RS |
2653 | wrong_kboard: |
2654 | ||
184c3d81 | 2655 | STOP_POLLING; |
410d4de9 | 2656 | |
1e8bd3da RS |
2657 | /* Finally, we read from the main queue, |
2658 | and if that gives us something we can't use yet, we put it on the | |
2659 | appropriate side queue and try again. */ | |
410d4de9 | 2660 | |
1e8bd3da RS |
2661 | if (NILP (c)) |
2662 | { | |
2663 | KBOARD *kb; | |
2664 | ||
1e8bd3da | 2665 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2666 | save_getcjmp (save_jump); |
2667 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2668 | timer_start_idle (); |
83d68044 | 2669 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2670 | restore_getcjmp (save_jump); |
2671 | ||
c5fdd383 | 2672 | #ifdef MULTI_KBOARD |
410d4de9 | 2673 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2674 | { |
f3fbd155 KR |
2675 | Lisp_Object link = kb->kbd_queue; |
2676 | if (CONSP (link)) | |
2677 | { | |
2678 | while (CONSP (XCDR (link))) | |
2679 | link = XCDR (link); | |
2680 | if (!NILP (XCDR (link))) | |
2681 | abort (); | |
2682 | } | |
2683 | if (!CONSP (link)) | |
2684 | kb->kbd_queue = Fcons (c, Qnil); | |
2685 | else | |
2686 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2687 | kb->kbd_queue_has_data = 1; |
46b84797 | 2688 | c = Qnil; |
1e8bd3da RS |
2689 | if (single_kboard) |
2690 | goto wrong_kboard; | |
2691 | current_kboard = kb; | |
ef6661f7 RS |
2692 | /* This is going to exit from read_char |
2693 | so we had better get rid of this frame's stuff. */ | |
2694 | UNGCPRO; | |
1e8bd3da | 2695 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2696 | } |
1e8bd3da | 2697 | #endif |
beecf6a1 | 2698 | } |
1e8bd3da | 2699 | |
284f4730 | 2700 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2701 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2702 | Fkill_emacs (make_number (1)); |
2703 | ||
8c18cbfb | 2704 | if (INTEGERP (c)) |
80645119 JB |
2705 | { |
2706 | /* Add in any extra modifiers, where appropriate. */ | |
2707 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2708 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2709 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2710 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2711 | |
2712 | /* Transfer any other modifier bits directly from | |
2713 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2714 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2715 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2716 | } |
9fa4395d | 2717 | |
284f4730 JB |
2718 | non_reread: |
2719 | ||
fdbb67fe GM |
2720 | /* Record the last idle start time so that we can reset it |
2721 | should the next event read be a help-echo. */ | |
2722 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2723 | timer_stop_idle (); |
184c3d81 | 2724 | RESUME_POLLING; |
284f4730 | 2725 | |
410d4de9 RS |
2726 | if (NILP (c)) |
2727 | { | |
2728 | if (commandflag >= 0 | |
4ec4ed6a | 2729 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2730 | redisplay (); |
2731 | ||
2732 | goto wrong_kboard; | |
2733 | } | |
2734 | ||
2735 | non_reread_1: | |
2736 | ||
dfd11da7 | 2737 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2738 | so don't show them to the user. |
2739 | Also, don't record a key if we already did. */ | |
2740 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 2741 | goto exit; |
a1341f75 | 2742 | |
7f07d5ca RS |
2743 | /* Process special events within read_char |
2744 | and loop around to read another event. */ | |
017c7cb6 RS |
2745 | save = Vquit_flag; |
2746 | Vquit_flag = Qnil; | |
02067692 | 2747 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2748 | Vquit_flag = save; |
7f07d5ca RS |
2749 | |
2750 | if (!NILP (tem)) | |
2751 | { | |
ba8dfba8 RS |
2752 | int was_locked = single_kboard; |
2753 | ||
7f07d5ca | 2754 | last_input_char = c; |
158f7532 | 2755 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2756 | |
5d12f14d EZ |
2757 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2758 | /* We stopped being idle for this event; undo that. This | |
2759 | prevents automatic window selection (under | |
0b9a1d3d | 2760 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d EZ |
2761 | example banishing the mouse under mouse-avoidance-mode. */ |
2762 | timer_idleness_start_time = last_idle_start; | |
2763 | ||
ba8dfba8 RS |
2764 | /* Resume allowing input from any kboard, if that was true before. */ |
2765 | if (!was_locked) | |
2766 | any_kboard_state (); | |
2767 | ||
7f07d5ca RS |
2768 | goto retry; |
2769 | } | |
2770 | ||
284f4730 | 2771 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2772 | if (INTEGERP (c)) |
284f4730 JB |
2773 | { |
2774 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2775 | if (XINT (c) == -1) |
184c3d81 | 2776 | goto exit; |
284f4730 | 2777 | |
301738ed | 2778 | if ((STRINGP (Vkeyboard_translate_table) |
d5db4077 | 2779 | && SCHARS (Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) |
301738ed RS |
2780 | || (VECTORP (Vkeyboard_translate_table) |
2781 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2782 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
5e3cb80d | 2783 | && CHAR_VALID_P (XINT (c), 0))) |
f9414d62 RS |
2784 | { |
2785 | Lisp_Object d; | |
2786 | d = Faref (Vkeyboard_translate_table, c); | |
2787 | /* nil in keyboard-translate-table means no translation. */ | |
2788 | if (!NILP (d)) | |
2789 | c = d; | |
2790 | } | |
284f4730 JB |
2791 | } |
2792 | ||
e4fe371d RS |
2793 | /* If this event is a mouse click in the menu bar, |
2794 | return just menu-bar for now. Modify the mouse click event | |
2795 | so we won't do this twice, then queue it up. */ | |
2796 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2797 | && CONSP (XCDR (c)) |
e4fe371d | 2798 | && CONSP (EVENT_START (c)) |
7539e11f | 2799 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2800 | { |
e4fe371d | 2801 | Lisp_Object posn; |
284f4730 | 2802 | |
e4fe371d RS |
2803 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2804 | /* Handle menu-bar events: | |
2805 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2806 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2807 | { |
2808 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
f3fbd155 | 2809 | POSN_BUFFER_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2810 | |
e4fe371d RS |
2811 | also_record = c; |
2812 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2813 | c = posn; | |
284f4730 | 2814 | } |
284f4730 JB |
2815 | } |
2816 | ||
7d18f9ae RS |
2817 | /* Store these characters into recent_keys, the dribble file if any, |
2818 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2819 | record_char (c); |
2820 | if (! NILP (also_record)) | |
2821 | record_char (also_record); | |
51172b6d | 2822 | |
d5eecefb RS |
2823 | /* Wipe the echo area. |
2824 | But first, if we are about to use an input method, | |
2825 | save the echo area contents for it to refer to. */ | |
2826 | if (INTEGERP (c) | |
2827 | && ! NILP (Vinput_method_function) | |
2828 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2829 | && (unsigned) XINT (c) != 127 |
2830 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2831 | { |
2832 | previous_echo_area_message = Fcurrent_message (); | |
2833 | Vinput_method_previous_message = previous_echo_area_message; | |
2834 | } | |
d5eecefb | 2835 | |
1172eb8d GM |
2836 | /* Now wipe the echo area, except for help events which do their |
2837 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2838 | if (!CONSP (c) |
2839 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2840 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2841 | { |
2842 | if (!NILP (echo_area_buffer[0])) | |
2843 | safe_run_hooks (Qecho_area_clear_hook); | |
2844 | clear_message (1, 0); | |
2845 | } | |
d5eecefb | 2846 | |
7d18f9ae | 2847 | reread_for_input_method: |
284f4730 | 2848 | from_macro: |
7d18f9ae | 2849 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2850 | if (INTEGERP (c) |
2851 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2852 | /* Don't run the input method within a key sequence, |
2853 | after the first event of the key sequence. */ | |
2854 | && NILP (prev_event) | |
d5eecefb | 2855 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2856 | && (unsigned) XINT (c) != 127 |
2857 | && (unsigned) XINT (c) < 256) | |
d5eecefb RS |
2858 | { |
2859 | Lisp_Object keys; | |
6e5742a0 | 2860 | int key_count; |
d5eecefb | 2861 | struct gcpro gcpro1; |
aed13378 | 2862 | int count = SPECPDL_INDEX (); |
d5eecefb | 2863 | |
6e5742a0 RS |
2864 | /* Save the echo status. */ |
2865 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2866 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2867 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2868 | ||
2869 | if (before_command_restore_flag) | |
2870 | { | |
2871 | this_command_key_count = before_command_key_count_1; | |
2872 | if (this_command_key_count < this_single_command_key_start) | |
2873 | this_single_command_key_start = this_command_key_count; | |
2874 | echo_truncate (before_command_echo_length_1); | |
2875 | before_command_restore_flag = 0; | |
2876 | } | |
2877 | ||
2878 | /* Save the this_command_keys status. */ | |
2879 | key_count = this_command_key_count; | |
2880 | ||
2881 | if (key_count > 0) | |
2882 | keys = Fcopy_sequence (this_command_keys); | |
2883 | else | |
2884 | keys = Qnil; | |
d5eecefb | 2885 | GCPRO1 (keys); |
6e5742a0 RS |
2886 | |
2887 | /* Clear out this_command_keys. */ | |
2888 | this_command_key_count = 0; | |
2889 | ||
2890 | /* Now wipe the echo area. */ | |
985f9f66 | 2891 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2892 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2893 | clear_message (1, 0); |
6e5742a0 RS |
2894 | echo_truncate (0); |
2895 | ||
b638f328 RS |
2896 | /* If we are not reading a key sequence, |
2897 | never use the echo area. */ | |
2898 | if (maps == 0) | |
2899 | { | |
b638f328 RS |
2900 | specbind (Qinput_method_use_echo_area, Qt); |
2901 | } | |
2902 | ||
6e5742a0 | 2903 | /* Call the input method. */ |
d5eecefb | 2904 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2905 | |
2906 | tem = unbind_to (count, tem); | |
2907 | ||
6e5742a0 RS |
2908 | /* Restore the saved echoing state |
2909 | and this_command_keys state. */ | |
2910 | this_command_key_count = key_count; | |
2911 | if (key_count > 0) | |
2912 | this_command_keys = keys; | |
2913 | ||
2914 | cancel_echoing (); | |
2915 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2916 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2917 | if (saved_immediate_echo) | |
2918 | echo_now (); | |
2919 | ||
d5eecefb | 2920 | UNGCPRO; |
6e5742a0 | 2921 | |
d5eecefb RS |
2922 | /* The input method can return no events. */ |
2923 | if (! CONSP (tem)) | |
7d18f9ae | 2924 | { |
d5eecefb | 2925 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2926 | if (! NILP (previous_echo_area_message)) |
2927 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2928 | goto retry; |
7d18f9ae | 2929 | } |
d5eecefb | 2930 | /* It returned one event or more. */ |
7539e11f | 2931 | c = XCAR (tem); |
d5eecefb | 2932 | Vunread_post_input_method_events |
7539e11f | 2933 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2934 | } |
7c3bc944 | 2935 | |
7d18f9ae | 2936 | reread_first: |
284f4730 | 2937 | |
7ee32cda | 2938 | /* Display help if not echoing. */ |
1172eb8d | 2939 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 2940 | { |
2190735a | 2941 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
2942 | Lisp_Object help, object, position, window, tem; |
2943 | ||
2944 | tem = Fcdr (XCDR (c)); | |
2945 | help = Fcar (tem); | |
2946 | tem = Fcdr (tem); | |
2947 | window = Fcar (tem); | |
2948 | tem = Fcdr (tem); | |
2949 | object = Fcar (tem); | |
2950 | tem = Fcdr (tem); | |
2951 | position = Fcar (tem); | |
2952 | ||
2190735a | 2953 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
2954 | |
2955 | /* We stopped being idle for this event; undo that. */ | |
2956 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
2957 | goto retry; |
2958 | } | |
2959 | ||
7d18f9ae | 2960 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2961 | { |
7d18f9ae RS |
2962 | before_command_key_count = this_command_key_count; |
2963 | before_command_echo_length = echo_length (); | |
2964 | ||
2965 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2966 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2967 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2968 | && ! (EVENT_HAS_PARAMETERS (c) |
2969 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2970 | { | |
2971 | echo_char (c); | |
2972 | if (! NILP (also_record)) | |
2973 | echo_char (also_record); | |
2974 | /* Once we reread a character, echoing can happen | |
2975 | the next time we pause to read a new one. */ | |
985f9f66 | 2976 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2977 | } |
2978 | ||
2979 | /* Record this character as part of the current key. */ | |
2980 | add_command_key (c); | |
e4fe371d | 2981 | if (! NILP (also_record)) |
7d18f9ae | 2982 | add_command_key (also_record); |
e4fe371d | 2983 | } |
b8556aee | 2984 | |
284f4730 | 2985 | last_input_char = c; |
c43b1734 | 2986 | num_input_events++; |
284f4730 JB |
2987 | |
2988 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2989 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2990 | { |
2991 | Lisp_Object tem0; | |
aed13378 | 2992 | count = SPECPDL_INDEX (); |
284f4730 JB |
2993 | |
2994 | record_unwind_protect (Fset_window_configuration, | |
2995 | Fcurrent_window_configuration (Qnil)); | |
2996 | ||
2997 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2998 | if (STRINGP (tem0)) |
284f4730 JB |
2999 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3000 | ||
3001 | cancel_echoing (); | |
3cb81011 KH |
3002 | do |
3003 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3004 | while (BUFFERP (c)); |
ff11dfa1 | 3005 | /* Remove the help from the frame */ |
284f4730 | 3006 | unbind_to (count, Qnil); |
410d4de9 | 3007 | |
284f4730 JB |
3008 | redisplay (); |
3009 | if (EQ (c, make_number (040))) | |
3010 | { | |
3011 | cancel_echoing (); | |
3cb81011 KH |
3012 | do |
3013 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3014 | while (BUFFERP (c)); |
284f4730 JB |
3015 | } |
3016 | } | |
3017 | ||
184c3d81 RS |
3018 | exit: |
3019 | RESUME_POLLING; | |
7c3bc944 | 3020 | RETURN_UNGCPRO (c); |
284f4730 JB |
3021 | } |
3022 | ||
8eb4d8ef RS |
3023 | /* Record a key that came from a mouse menu. |
3024 | Record it for echoing, for this-command-keys, and so on. */ | |
3025 | ||
3026 | static void | |
3027 | record_menu_key (c) | |
3028 | Lisp_Object c; | |
3029 | { | |
3030 | /* Wipe the echo area. */ | |
985f9f66 | 3031 | clear_message (1, 0); |
8eb4d8ef RS |
3032 | |
3033 | record_char (c); | |
3034 | ||
3035 | before_command_key_count = this_command_key_count; | |
3036 | before_command_echo_length = echo_length (); | |
3037 | ||
3038 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3039 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3040 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3041 | { |
3042 | echo_char (c); | |
3043 | ||
3044 | /* Once we reread a character, echoing can happen | |
3045 | the next time we pause to read a new one. */ | |
3046 | ok_to_echo_at_next_pause = 0; | |
3047 | } | |
3048 | ||
3049 | /* Record this character as part of the current key. */ | |
3050 | add_command_key (c); | |
3051 | ||
3052 | /* Re-reading in the middle of a command */ | |
3053 | last_input_char = c; | |
c43b1734 | 3054 | num_input_events++; |
8eb4d8ef RS |
3055 | } |
3056 | ||
ecb7cb34 KH |
3057 | /* Return 1 if should recognize C as "the help character". */ |
3058 | ||
3059 | int | |
3060 | help_char_p (c) | |
3061 | Lisp_Object c; | |
3062 | { | |
3063 | Lisp_Object tail; | |
3064 | ||
3065 | if (EQ (c, Vhelp_char)) | |
3066 | return 1; | |
7539e11f KR |
3067 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3068 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3069 | return 1; |
3070 | return 0; | |
3071 | } | |
3072 | ||
e4fe371d RS |
3073 | /* Record the input event C in various ways. */ |
3074 | ||
3075 | static void | |
3076 | record_char (c) | |
3077 | Lisp_Object c; | |
3078 | { | |
090c68b9 | 3079 | int recorded = 0; |
52be17cc | 3080 | |
090c68b9 KS |
3081 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3082 | { | |
3083 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3084 | events, we filter out repeated help-echo events, only store the | |
3085 | first and last in a series of mouse-movement events, and don't | |
3086 | store repeated help-echo events which are only separated by | |
3087 | mouse-movement events. */ | |
3088 | ||
3089 | Lisp_Object ev1, ev2, ev3; | |
3090 | int ix1, ix2, ix3; | |
3091 | ||
3092 | if ((ix1 = recent_keys_index - 1) < 0) | |
3093 | ix1 = NUM_RECENT_KEYS - 1; | |
3094 | ev1 = AREF (recent_keys, ix1); | |
3095 | ||
3096 | if ((ix2 = ix1 - 1) < 0) | |
3097 | ix2 = NUM_RECENT_KEYS - 1; | |
3098 | ev2 = AREF (recent_keys, ix2); | |
3099 | ||
3100 | if ((ix3 = ix2 - 1) < 0) | |
3101 | ix3 = NUM_RECENT_KEYS - 1; | |
3102 | ev3 = AREF (recent_keys, ix3); | |
3103 | ||
3104 | if (EQ (XCAR (c), Qhelp_echo)) | |
3105 | { | |
3106 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3107 | message, and a different help than the previously recorded |
090c68b9 KS |
3108 | event. */ |
3109 | Lisp_Object help, last_help; | |
3110 | ||
3111 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3112 | if (!STRINGP (help)) | |
3113 | recorded = 1; | |
3114 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3115 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3116 | recorded = 1; | |
3117 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3118 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3119 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3120 | recorded = -1; | |
3121 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3122 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3123 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3124 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3125 | recorded = -2; | |
3126 | } | |
3127 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3128 | { |
090c68b9 KS |
3129 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3130 | So additional mouse movement events replace the last element. */ | |
3131 | Lisp_Object last_window, window; | |
3132 | ||
3133 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3134 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3135 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3136 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3137 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3138 | { |
090c68b9 KS |
3139 | ASET (recent_keys, ix1, c); |
3140 | recorded = 1; | |
52be17cc GM |
3141 | } |
3142 | } | |
3143 | } | |
3144 | else | |
090c68b9 KS |
3145 | store_kbd_macro_char (c); |
3146 | ||
3147 | if (!recorded) | |
e8a50785 GM |
3148 | { |
3149 | total_keys++; | |
3150 | ASET (recent_keys, recent_keys_index, c); | |
3151 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3152 | recent_keys_index = 0; | |
3153 | } | |
090c68b9 KS |
3154 | else if (recorded < 0) |
3155 | { | |
3156 | /* We need to remove one or two events from recent_keys. | |
3157 | To do this, we simply put nil at those events and move the | |
3158 | recent_keys_index backwards over those events. Usually, | |
3159 | users will never see those nil events, as they will be | |
3160 | overwritten by the command keys entered to see recent_keys | |
3161 | (e.g. C-h l). */ | |
3162 | ||
3163 | while (recorded++ < 0 && total_keys > 0) | |
3164 | { | |
3165 | if (total_keys < NUM_RECENT_KEYS) | |
3166 | total_keys--; | |
3167 | if (--recent_keys_index < 0) | |
3168 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3169 | ASET (recent_keys, recent_keys_index, Qnil); | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | num_nonmacro_input_events++; | |
52be17cc | 3174 | |
e4fe371d RS |
3175 | /* Write c to the dribble file. If c is a lispy event, write |
3176 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3177 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3178 | if (dribble) | |
3179 | { | |
3180 | if (INTEGERP (c)) | |
3181 | { | |
3182 | if (XUINT (c) < 0x100) | |
3183 | putc (XINT (c), dribble); | |
3184 | else | |
6de34814 | 3185 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3186 | } |
3187 | else | |
3188 | { | |
3189 | Lisp_Object dribblee; | |
3190 | ||
3191 | /* If it's a structured event, take the event header. */ | |
3192 | dribblee = EVENT_HEAD (c); | |
3193 | ||
3194 | if (SYMBOLP (dribblee)) | |
3195 | { | |
3196 | putc ('<', dribble); | |
d5db4077 KR |
3197 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3198 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3199 | dribble); |
3200 | putc ('>', dribble); | |
3201 | } | |
3202 | } | |
3203 | ||
3204 | fflush (dribble); | |
3205 | } | |
e4fe371d RS |
3206 | } |
3207 | ||
284f4730 JB |
3208 | Lisp_Object |
3209 | print_help (object) | |
3210 | Lisp_Object object; | |
3211 | { | |
622de3e9 | 3212 | struct buffer *old = current_buffer; |
284f4730 | 3213 | Fprinc (object, Qnil); |
622de3e9 KH |
3214 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3215 | call0 (intern ("help-mode")); | |
3216 | set_buffer_internal (old); | |
284f4730 JB |
3217 | return Qnil; |
3218 | } | |
3219 | ||
3220 | /* Copy out or in the info on where C-g should throw to. | |
3221 | This is used when running Lisp code from within get_char, | |
3222 | in case get_char is called recursively. | |
3223 | See read_process_output. */ | |
3224 | ||
dfcf069d | 3225 | static void |
284f4730 JB |
3226 | save_getcjmp (temp) |
3227 | jmp_buf temp; | |
3228 | { | |
3229 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3230 | } | |
3231 | ||
dfcf069d | 3232 | static void |
284f4730 JB |
3233 | restore_getcjmp (temp) |
3234 | jmp_buf temp; | |
3235 | { | |
3236 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3237 | } | |
284f4730 | 3238 | \f |
2eb6bfbe RM |
3239 | #ifdef HAVE_MOUSE |
3240 | ||
284f4730 JB |
3241 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3242 | of this function. */ | |
a9d77f1f | 3243 | |
284f4730 JB |
3244 | static Lisp_Object |
3245 | tracking_off (old_value) | |
3246 | Lisp_Object old_value; | |
3247 | { | |
71edead1 RS |
3248 | do_mouse_tracking = old_value; |
3249 | if (NILP (old_value)) | |
284f4730 | 3250 | { |
284f4730 JB |
3251 | /* Redisplay may have been preempted because there was input |
3252 | available, and it assumes it will be called again after the | |
3253 | input has been processed. If the only input available was | |
3254 | the sort that we have just disabled, then we need to call | |
3255 | redisplay. */ | |
d9d4c147 | 3256 | if (!readable_events (1)) |
284f4730 | 3257 | { |
3007ebfb | 3258 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3259 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3260 | } |
3261 | } | |
30690496 | 3262 | return Qnil; |
284f4730 JB |
3263 | } |
3264 | ||
3265 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3266 | doc: /* Evaluate BODY with mouse movement events enabled. |
3267 | Within a `track-mouse' form, mouse motion generates input events that | |
3268 | you can read with `read-event'. | |
3269 | Normally, mouse motion is ignored. | |
3270 | usage: (track-mouse BODY ...) */) | |
3271 | (args) | |
284f4730 JB |
3272 | Lisp_Object args; |
3273 | { | |
aed13378 | 3274 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3275 | Lisp_Object val; |
3276 | ||
a9d77f1f | 3277 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3278 | |
f3253854 | 3279 | do_mouse_tracking = Qt; |
df0f2ba1 | 3280 | |
284f4730 JB |
3281 | val = Fprogn (args); |
3282 | return unbind_to (count, val); | |
3283 | } | |
2eb6bfbe | 3284 | |
f3253854 KH |
3285 | /* If mouse has moved on some frame, return one of those frames. |
3286 | Return 0 otherwise. */ | |
3287 | ||
3288 | static FRAME_PTR | |
3289 | some_mouse_moved () | |
3290 | { | |
3291 | Lisp_Object tail, frame; | |
3292 | ||
3293 | FOR_EACH_FRAME (tail, frame) | |
3294 | { | |
3295 | if (XFRAME (frame)->mouse_moved) | |
3296 | return XFRAME (frame); | |
3297 | } | |
3298 | ||
3299 | return 0; | |
3300 | } | |
3301 | ||
2eb6bfbe | 3302 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3303 | \f |
3304 | /* Low level keyboard/mouse input. | |
3305 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3306 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3307 | |
3308 | /* Return true iff there are any events in the queue that read-char | |
3309 | would return. If this returns false, a read-char would block. */ | |
3310 | static int | |
20057d52 | 3311 | readable_filtered_events (do_timers_now, filter_events) |
d9d4c147 | 3312 | int do_timers_now; |
20057d52 | 3313 | int filter_events; |
a612e298 | 3314 | { |
4ec4ed6a RS |
3315 | if (do_timers_now) |
3316 | timer_check (do_timers_now); | |
3317 | ||
a0ba8995 | 3318 | /* If the buffer contains only FOCUS_IN_EVENT events, |
20057d52 | 3319 | and FILTER_EVENTS is nonzero, report it as empty. */ |
beecf6a1 | 3320 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3321 | { |
20057d52 | 3322 | int have_live_event = 1; |
a0ba8995 | 3323 | |
20057d52 JD |
3324 | if (filter_events) |
3325 | { | |
3326 | struct input_event *event; | |
3327 | ||
3328 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3329 | ? kbd_fetch_ptr | |
3330 | : kbd_buffer); | |
3331 | ||
3332 | while (have_live_event && event->kind == FOCUS_IN_EVENT) | |
3333 | { | |
3334 | event++; | |
3335 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
3336 | event = kbd_buffer; | |
3337 | if (event == kbd_store_ptr) | |
3338 | have_live_event = 0; | |
3339 | } | |
3340 | } | |
3341 | if (have_live_event) return 1; | |
a0ba8995 RS |
3342 | } |
3343 | ||
beecf6a1 | 3344 | #ifdef HAVE_MOUSE |
f3253854 | 3345 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3346 | return 1; |
3347 | #endif | |
1e8bd3da | 3348 | if (single_kboard) |
4c52b668 | 3349 | { |
c5fdd383 | 3350 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3351 | return 1; |
3352 | } | |
3353 | else | |
3354 | { | |
c5fdd383 KH |
3355 | KBOARD *kb; |
3356 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3357 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3358 | return 1; |
3359 | } | |
beecf6a1 | 3360 | return 0; |
a612e298 RS |
3361 | } |
3362 | ||
20057d52 JD |
3363 | /* Return true iff there are any events in the queue that read-char |
3364 | would return. If this returns false, a read-char would block. */ | |
3365 | static int | |
3366 | readable_events (do_timers_now) | |
3367 | int do_timers_now; | |
3368 | { | |
3369 | return readable_filtered_events (do_timers_now, 0); | |
3370 | } | |
3371 | ||
a612e298 RS |
3372 | /* Set this for debugging, to have a way to get out */ |
3373 | int stop_character; | |
284f4730 | 3374 | |
c5fdd383 KH |
3375 | #ifdef MULTI_KBOARD |
3376 | static KBOARD * | |
3377 | event_to_kboard (event) | |
5798cf15 KH |
3378 | struct input_event *event; |
3379 | { | |
3380 | Lisp_Object frame; | |
3381 | frame = event->frame_or_window; | |
3382 | if (CONSP (frame)) | |
7539e11f | 3383 | frame = XCAR (frame); |
5798cf15 KH |
3384 | else if (WINDOWP (frame)) |
3385 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3386 | ||
3387 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3388 | For now, just ignore the problem. |
3389 | Also ignore dead frames here. */ | |
3390 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3391 | return 0; |
3392 | else | |
c5fdd383 | 3393 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3394 | } |
3395 | #endif | |
3396 | ||
284f4730 JB |
3397 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3398 | ||
3399 | void | |
3400 | kbd_buffer_store_event (event) | |
3401 | register struct input_event *event; | |
3402 | { | |
3b8f9651 | 3403 | if (event->kind == NO_EVENT) |
284f4730 JB |
3404 | abort (); |
3405 | ||
3b8f9651 | 3406 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3407 | { |
e9bf89a0 | 3408 | register int c = event->code & 0377; |
284f4730 | 3409 | |
faf5e407 JB |
3410 | if (event->modifiers & ctrl_modifier) |
3411 | c = make_ctrl_char (c); | |
3412 | ||
9fd7d808 RS |
3413 | c |= (event->modifiers |
3414 | & (meta_modifier | alt_modifier | |
3415 | | hyper_modifier | super_modifier)); | |
3416 | ||
86e5706b | 3417 | if (c == quit_char) |
284f4730 | 3418 | { |
f9f1e1fc | 3419 | static SIGTYPE interrupt_signal P_ ((int)); |
c5fdd383 KH |
3420 | #ifdef MULTI_KBOARD |
3421 | KBOARD *kb; | |
5798cf15 KH |
3422 | struct input_event *sp; |
3423 | ||
1e8bd3da | 3424 | if (single_kboard |
c5fdd383 KH |
3425 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3426 | kb != current_kboard)) | |
5798cf15 | 3427 | { |
c5fdd383 | 3428 | kb->kbd_queue |
5798cf15 KH |
3429 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3430 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3431 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3432 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3433 | { | |
3434 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3435 | sp = kbd_buffer; | |
3436 | ||
c5fdd383 | 3437 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3438 | { |
3b8f9651 | 3439 | sp->kind = NO_EVENT; |
5798cf15 | 3440 | sp->frame_or_window = Qnil; |
da8f7368 | 3441 | sp->arg = Qnil; |
5798cf15 KH |
3442 | } |
3443 | } | |
3444 | return; | |
3445 | } | |
3446 | #endif | |
3e51c7b7 | 3447 | |
284f4730 | 3448 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3449 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3450 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3451 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3452 | { |
9b8eb840 | 3453 | Lisp_Object focus; |
4bb994d1 | 3454 | |
9b8eb840 | 3455 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3456 | if (NILP (focus)) |
beecf6a1 | 3457 | focus = event->frame_or_window; |
4c52b668 KH |
3458 | internal_last_event_frame = focus; |
3459 | Vlast_event_frame = focus; | |
4bb994d1 | 3460 | } |
3e51c7b7 | 3461 | |
ffd56f97 | 3462 | last_event_timestamp = event->timestamp; |
7189cad8 | 3463 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3464 | return; |
3465 | } | |
3466 | ||
3467 | if (c && c == stop_character) | |
3468 | { | |
3469 | sys_suspend (); | |
3470 | return; | |
3471 | } | |
284f4730 | 3472 | } |
3b8f9651 | 3473 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3474 | Just ignore the second one. */ |
3b8f9651 | 3475 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3476 | && kbd_fetch_ptr != kbd_store_ptr |
3b8f9651 | 3477 | && kbd_store_ptr->kind == BUFFER_SWITCH_EVENT) |
3fe8e9a2 | 3478 | return; |
284f4730 | 3479 | |
beecf6a1 KH |
3480 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3481 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3482 | |
3483 | /* Don't let the very last slot in the buffer become full, | |
3484 | since that would make the two pointers equal, | |
3485 | and that is indistinguishable from an empty buffer. | |
3486 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3487 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3488 | { |
da8f7368 GM |
3489 | int idx; |
3490 | ||
3b8f9651 | 3491 | #if 0 /* The SELECTION_REQUEST_EVENT case looks bogus, and it's error |
da8f7368 GM |
3492 | prone to assign individual members for other events, in case |
3493 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3494 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3495 | sp->kind = event->kind; |
3b8f9651 | 3496 | if (event->kind == SELECTION_REQUEST_EVENT) |
27203ead RS |
3497 | { |
3498 | /* We must not use the ordinary copying code for this case, | |
3499 | since `part' is an enum and copying it might not copy enough | |
3500 | in this case. */ | |
612b78ef | 3501 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3502 | } |
3503 | else | |
da8f7368 | 3504 | |
27203ead | 3505 | { |
612b78ef KH |
3506 | sp->code = event->code; |
3507 | sp->part = event->part; | |
3508 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3509 | sp->arg = event->arg; |
612b78ef KH |
3510 | sp->modifiers = event->modifiers; |
3511 | sp->x = event->x; | |
3512 | sp->y = event->y; | |
3513 | sp->timestamp = event->timestamp; | |
27203ead | 3514 | } |
da8f7368 GM |
3515 | #else |
3516 | *kbd_store_ptr = *event; | |
3517 | #endif | |
284f4730 | 3518 | |
da8f7368 GM |
3519 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3520 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3521 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3522 | ++kbd_store_ptr; | |
284f4730 JB |
3523 | } |
3524 | } | |
8dfd92c9 GM |
3525 | |
3526 | ||
f139e559 | 3527 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3528 | SIZE events. If there's not enough room in BUFP, ignore this |
3529 | event. | |
8dfd92c9 GM |
3530 | |
3531 | HELP is the help form. | |
3532 | ||
3533 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3534 | Lisp object where the help was found (a buffer, a string, an |
3535 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3536 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3537 | |
3538 | Value is the number of input_events generated. */ | |
3539 | ||
3540 | int | |
0bbfdc25 | 3541 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3542 | struct input_event *bufp; |
0bbfdc25 | 3543 | int size; |
2190735a | 3544 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3545 | int pos; |
3546 | { | |
2e1a49ad | 3547 | if (size >= 1) |
0bbfdc25 GM |
3548 | { |
3549 | bufp->kind = HELP_EVENT; | |
3550 | bufp->frame_or_window = frame; | |
3551 | bufp->arg = object; | |
2e1a49ad SM |
3552 | bufp->x = WINDOWP (window) ? window : frame; |
3553 | bufp->y = help; | |
78134789 | 3554 | bufp->code = pos; |
2e1a49ad | 3555 | return 1; |
0bbfdc25 | 3556 | } |
2e1a49ad | 3557 | return 0; |
8dfd92c9 GM |
3558 | } |
3559 | ||
3560 | ||
3561 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3562 | ||
3563 | void | |
3564 | kbd_buffer_store_help_event (frame, help) | |
3565 | Lisp_Object frame, help; | |
3566 | { | |
3567 | struct input_event event; | |
3568 | ||
3569 | event.kind = HELP_EVENT; | |
3570 | event.frame_or_window = frame; | |
3571 | event.arg = Qnil; | |
2e1a49ad SM |
3572 | event.x = Qnil; |
3573 | event.y = help; | |
8dfd92c9 GM |
3574 | event.code = 0; |
3575 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3576 | } |
3577 | ||
a612e298 | 3578 | \f |
07de30b9 | 3579 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3580 | NO_EVENT. */ |
07de30b9 GV |
3581 | void |
3582 | discard_mouse_events () | |
3583 | { | |
3584 | struct input_event *sp; | |
3585 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3586 | { | |
3587 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3588 | sp = kbd_buffer; | |
3589 | ||
3b8f9651 | 3590 | if (sp->kind == MOUSE_CLICK_EVENT |
07de30b9 | 3591 | #ifdef WINDOWSNT |
3b8f9651 | 3592 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3593 | #endif |
3b8f9651 | 3594 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3595 | { |
3b8f9651 | 3596 | sp->kind = NO_EVENT; |
07de30b9 GV |
3597 | } |
3598 | } | |
3599 | } | |
eeabfe76 | 3600 | |
0bbfdc25 GM |
3601 | |
3602 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3603 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3604 | |
3b8f9651 | 3605 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3606 | the input queue, possibly leaving the input queue empty if there |
3607 | are no real input events. */ | |
3608 | ||
eeabfe76 EZ |
3609 | int |
3610 | kbd_buffer_events_waiting (discard) | |
3611 | int discard; | |
3612 | { | |
3613 | struct input_event *sp; | |
0bbfdc25 GM |
3614 | |
3615 | for (sp = kbd_fetch_ptr; | |
3b8f9651 | 3616 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3617 | ++sp) |
eeabfe76 EZ |
3618 | { |
3619 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3620 | sp = kbd_buffer; | |
eeabfe76 | 3621 | } |
0bbfdc25 | 3622 | |
eeabfe76 EZ |
3623 | if (discard) |
3624 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3625 | |
3b8f9651 | 3626 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3627 | } |
0bbfdc25 | 3628 | |
07de30b9 | 3629 | \f |
0bbfdc25 GM |
3630 | /* Clear input event EVENT. */ |
3631 | ||
3632 | static INLINE void | |
3633 | clear_event (event) | |
3634 | struct input_event *event; | |
3635 | { | |
3636 | int idx = 2 * (event - kbd_buffer); | |
3637 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3638 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3b8f9651 | 3639 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3640 | } |
3641 | ||
3642 | ||
a612e298 RS |
3643 | /* Read one event from the event buffer, waiting if necessary. |
3644 | The value is a Lisp object representing the event. | |
3645 | The value is nil for an event that should be ignored, | |
3646 | or that was handled here. | |
3647 | We always read and discard one event. */ | |
284f4730 JB |
3648 | |
3649 | static Lisp_Object | |
83d68044 | 3650 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3651 | KBOARD **kbp; |
83d68044 | 3652 | int *used_mouse_menu; |
284f4730 JB |
3653 | { |
3654 | register int c; | |
3655 | Lisp_Object obj; | |
3656 | ||
3657 | if (noninteractive) | |
3658 | { | |
3659 | c = getchar (); | |
18cd2eeb | 3660 | XSETINT (obj, c); |
f5b56972 | 3661 | *kbp = current_kboard; |
284f4730 JB |
3662 | return obj; |
3663 | } | |
3664 | ||
3665 | /* Wait until there is input available. */ | |
3666 | for (;;) | |
3667 | { | |
beecf6a1 KH |
3668 | if (kbd_fetch_ptr != kbd_store_ptr) |
3669 | break; | |
3670 | #ifdef HAVE_MOUSE | |
f3253854 | 3671 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3672 | break; |
beecf6a1 | 3673 | #endif |
284f4730 JB |
3674 | |
3675 | /* If the quit flag is set, then read_char will return | |
3676 | quit_char, so that counts as "available input." */ | |
3677 | if (!NILP (Vquit_flag)) | |
3678 | quit_throw_to_read_char (); | |
3679 | ||
3680 | /* One way or another, wait until input is available; then, if | |
3681 | interrupt handlers have not read it, read it now. */ | |
3682 | ||
3683 | #ifdef OLDVMS | |
3684 | wait_for_kbd_input (); | |
3685 | #else | |
3686 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3687 | #ifdef SIGIO | |
3688 | gobble_input (0); | |
3689 | #endif /* SIGIO */ | |
beecf6a1 KH |
3690 | if (kbd_fetch_ptr != kbd_store_ptr) |
3691 | break; | |
3692 | #ifdef HAVE_MOUSE | |
f3253854 | 3693 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3694 | break; |
3695 | #endif | |
3696 | { | |
3697 | Lisp_Object minus_one; | |
f76475ad | 3698 | |
beecf6a1 | 3699 | XSETINT (minus_one, -1); |
d9d4c147 | 3700 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3701 | |
beecf6a1 KH |
3702 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3703 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3704 | read_avail_input (1); | |
3705 | } | |
284f4730 JB |
3706 | #endif /* not VMS */ |
3707 | } | |
3708 | ||
303b5b3f RS |
3709 | if (CONSP (Vunread_command_events)) |
3710 | { | |
3711 | Lisp_Object first; | |
7539e11f KR |
3712 | first = XCAR (Vunread_command_events); |
3713 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3714 | *kbp = current_kboard; |
3715 | return first; | |
3716 | } | |
3717 | ||
284f4730 JB |
3718 | /* At this point, we know that there is a readable event available |
3719 | somewhere. If the event queue is empty, then there must be a | |
3720 | mouse movement enabled and available. */ | |
beecf6a1 | 3721 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3722 | { |
cd21b839 | 3723 | struct input_event *event; |
3e51c7b7 | 3724 | |
beecf6a1 KH |
3725 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3726 | ? kbd_fetch_ptr | |
3727 | : kbd_buffer); | |
3e51c7b7 | 3728 | |
cd21b839 | 3729 | last_event_timestamp = event->timestamp; |
cd21b839 | 3730 | |
c5fdd383 KH |
3731 | #ifdef MULTI_KBOARD |
3732 | *kbp = event_to_kboard (event); | |
3733 | if (*kbp == 0) | |
3734 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3735 | #else |
c5fdd383 | 3736 | *kbp = &the_only_kboard; |
5798cf15 | 3737 | #endif |
beecf6a1 | 3738 | |
4bb994d1 JB |
3739 | obj = Qnil; |
3740 | ||
48e416d4 | 3741 | /* These two kinds of events get special handling |
a612e298 RS |
3742 | and don't actually appear to the command loop. |
3743 | We return nil for them. */ | |
3b8f9651 | 3744 | if (event->kind == SELECTION_REQUEST_EVENT) |
48e416d4 | 3745 | { |
598a9fa7 | 3746 | #ifdef HAVE_X11 |
1e8bd3da RS |
3747 | struct input_event copy; |
3748 | ||
4581e928 RS |
3749 | /* Remove it from the buffer before processing it, |
3750 | since otherwise swallow_events will see it | |
3751 | and process it again. */ | |
1e8bd3da | 3752 | copy = *event; |
beecf6a1 | 3753 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3754 | input_pending = readable_events (0); |
4581e928 | 3755 | x_handle_selection_request (©); |
598a9fa7 JB |
3756 | #else |
3757 | /* We're getting selection request events, but we don't have | |
3758 | a window system. */ | |
3759 | abort (); | |
3760 | #endif | |
48e416d4 RS |
3761 | } |
3762 | ||
3b8f9651 | 3763 | else if (event->kind == SELECTION_CLEAR_EVENT) |
48e416d4 | 3764 | { |
598a9fa7 | 3765 | #ifdef HAVE_X11 |
e0301c07 RS |
3766 | struct input_event copy; |
3767 | ||
3768 | /* Remove it from the buffer before processing it. */ | |
3769 | copy = *event; | |
beecf6a1 | 3770 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3771 | input_pending = readable_events (0); |
90c2bb0c | 3772 | x_handle_selection_clear (©); |
598a9fa7 JB |
3773 | #else |
3774 | /* We're getting selection request events, but we don't have | |
3775 | a window system. */ | |
3776 | abort (); | |
3777 | #endif | |
48e416d4 | 3778 | } |
e0f712ba | 3779 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3780 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3781 | { |
bbdc2092 RS |
3782 | /* Make an event (delete-frame (FRAME)). */ |
3783 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3784 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3785 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3786 | } |
1a578e9b AC |
3787 | #endif |
3788 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
3b8f9651 | 3789 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
3790 | { |
3791 | /* Make an event (iconify-frame (FRAME)). */ | |
3792 | obj = Fcons (event->frame_or_window, Qnil); | |
3793 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3794 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3795 | } |
3b8f9651 | 3796 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
3797 | { |
3798 | /* Make an event (make-frame-visible (FRAME)). */ | |
3799 | obj = Fcons (event->frame_or_window, Qnil); | |
3800 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3801 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3802 | } |
3803 | #endif | |
3b8f9651 | 3804 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
3805 | { |
3806 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3807 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3808 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3809 | } |
e0f712ba | 3810 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3811 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
3812 | { |
3813 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3814 | input_pending = readable_events (0); |
e649d076 RS |
3815 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3816 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3817 | } |
1161d367 GV |
3818 | #endif |
3819 | #ifdef WINDOWSNT | |
3b8f9651 | 3820 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
3821 | { |
3822 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3823 | obj = Fcons (event->modifiers, Qnil); | |
15fdc2e3 | 3824 | obj = Fcons (event->code, obj); |
1161d367 GV |
3825 | obj = Fcons (event->frame_or_window, obj); |
3826 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3827 | kbd_fetch_ptr = event + 1; | |
3828 | } | |
099787c1 | 3829 | #endif |
3b8f9651 | 3830 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
3831 | { |
3832 | obj = Fcons (Qsave_session, Qnil); | |
3833 | kbd_fetch_ptr = event + 1; | |
3834 | } | |
a612e298 | 3835 | /* Just discard these, by returning nil. |
c5fdd383 | 3836 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3837 | when we need to randomly delete events from the queue. |
3838 | (They shouldn't otherwise be found in the buffer, | |
3839 | but on some machines it appears they do show up | |
c5fdd383 | 3840 | even without MULTI_KBOARD.) */ |
3b8f9651 | 3841 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 3842 | mouse events during a popup-menu call. */ |
3b8f9651 | 3843 | else if (event->kind == NO_EVENT) |
beecf6a1 | 3844 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3845 | else if (event->kind == HELP_EVENT) |
3846 | { | |
2190735a | 3847 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3848 | |
8dfd92c9 GM |
3849 | frame = event->frame_or_window; |
3850 | object = event->arg; | |
2e1a49ad SM |
3851 | position = make_number (event->code); |
3852 | window = event->x; | |
3853 | help = event->y; | |
0bbfdc25 | 3854 | clear_event (event); |
e4457b09 GM |
3855 | |
3856 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
3857 | if (!WINDOWP (window)) |
3858 | window = Qnil; | |
3859 | obj = Fcons (Qhelp_echo, | |
3860 | list5 (frame, help, window, object, position)); | |
7ee32cda | 3861 | } |
c51c7093 GM |
3862 | else if (event->kind == FOCUS_IN_EVENT) |
3863 | { | |
3864 | /* Notification of a FocusIn event. The frame receiving the | |
3865 | focus is in event->frame_or_window. Generate a | |
3866 | switch-frame event if necessary. */ | |
3867 | Lisp_Object frame, focus; | |
3868 | ||
3869 | frame = event->frame_or_window; | |
3870 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3871 | if (FRAMEP (focus)) | |
3872 | frame = focus; | |
3873 | ||
3874 | if (!EQ (frame, internal_last_event_frame) | |
3875 | && !EQ (frame, selected_frame)) | |
3876 | obj = make_lispy_switch_frame (frame); | |
3877 | internal_last_event_frame = frame; | |
a697f886 PJ |
3878 | kbd_fetch_ptr = event + 1; |
3879 | } | |
3880 | else if (event->kind == SELECT_WINDOW_EVENT) | |
3881 | { | |
3882 | /* Make an event (select-window (WINDOW)). */ | |
3883 | obj = Fcons (event->frame_or_window, Qnil); | |
3884 | obj = Fcons (Qselect_window, Fcons (obj, Qnil)); | |
3885 | ||
c51c7093 GM |
3886 | kbd_fetch_ptr = event + 1; |
3887 | } | |
1e12dd87 RS |
3888 | else |
3889 | { | |
c51c7093 GM |
3890 | /* If this event is on a different frame, return a switch-frame this |
3891 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3892 | Lisp_Object frame; |
1e12dd87 | 3893 | Lisp_Object focus; |
7b4aedb9 | 3894 | |
9b8eb840 | 3895 | frame = event->frame_or_window; |
2470a66f | 3896 | if (CONSP (frame)) |
7539e11f | 3897 | frame = XCAR (frame); |
2470a66f | 3898 | else if (WINDOWP (frame)) |
1e12dd87 | 3899 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3900 | |
1e12dd87 RS |
3901 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3902 | if (! NILP (focus)) | |
3903 | frame = focus; | |
07d2b8de | 3904 | |
4c52b668 | 3905 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3906 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3907 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3908 | internal_last_event_frame = frame; |
4bb994d1 | 3909 | |
1e12dd87 RS |
3910 | /* If we didn't decide to make a switch-frame event, go ahead |
3911 | and build a real event from the queue entry. */ | |
cd21b839 | 3912 | |
1e12dd87 RS |
3913 | if (NILP (obj)) |
3914 | { | |
3915 | obj = make_lispy_event (event); | |
da8f7368 | 3916 | |
742fbed7 | 3917 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) |
83d68044 KH |
3918 | /* If this was a menu selection, then set the flag to inhibit |
3919 | writing to last_nonmenu_event. Don't do this if the event | |
3920 | we're returning is (menu-bar), though; that indicates the | |
3921 | beginning of the menu sequence, and we might as well leave | |
3922 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
3923 | if (used_mouse_menu |
3924 | && !EQ (event->frame_or_window, event->arg) | |
3925 | && (event->kind == MENU_BAR_EVENT | |
3926 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
3927 | *used_mouse_menu = 1; |
3928 | #endif | |
1e12dd87 RS |
3929 | |
3930 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 3931 | clear_event (event); |
beecf6a1 | 3932 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3933 | } |
4bb994d1 | 3934 | } |
284f4730 | 3935 | } |
2eb6bfbe | 3936 | #ifdef HAVE_MOUSE |
a612e298 | 3937 | /* Try generating a mouse motion event. */ |
f3253854 | 3938 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3939 | { |
f3253854 | 3940 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3941 | Lisp_Object bar_window; |
3c370943 | 3942 | enum scroll_bar_part part; |
e5d77022 JB |
3943 | Lisp_Object x, y; |
3944 | unsigned long time; | |
284f4730 | 3945 | |
c5fdd383 | 3946 | *kbp = current_kboard; |
e177ac3a RS |
3947 | /* Note that this uses F to determine which display to look at. |
3948 | If there is no valid info, it does not store anything | |
3949 | so x remains nil. */ | |
3950 | x = Qnil; | |
dd26ab75 | 3951 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3952 | |
3953 | obj = Qnil; | |
284f4730 | 3954 | |
4bb994d1 JB |
3955 | /* Decide if we should generate a switch-frame event. Don't |
3956 | generate switch-frame events for motion outside of all Emacs | |
3957 | frames. */ | |
e177ac3a | 3958 | if (!NILP (x) && f) |
cd21b839 | 3959 | { |
9b8eb840 | 3960 | Lisp_Object frame; |
4bb994d1 | 3961 | |
9b8eb840 | 3962 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3963 | if (NILP (frame)) |
18cd2eeb | 3964 | XSETFRAME (frame, f); |
4bb994d1 | 3965 | |
4c52b668 | 3966 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3967 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3968 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3969 | internal_last_event_frame = frame; |
cd21b839 | 3970 | } |
4bb994d1 | 3971 | |
df0f2ba1 | 3972 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3973 | return a mouse-motion event. */ |
e177ac3a | 3974 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3975 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3976 | } |
2eb6bfbe | 3977 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3978 | else |
3979 | /* We were promised by the above while loop that there was | |
3980 | something for us to read! */ | |
3981 | abort (); | |
3982 | ||
d9d4c147 | 3983 | input_pending = readable_events (0); |
284f4730 | 3984 | |
4c52b668 | 3985 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3986 | |
284f4730 JB |
3987 | return (obj); |
3988 | } | |
a612e298 RS |
3989 | \f |
3990 | /* Process any events that are not user-visible, | |
3991 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3992 | |
3993 | void | |
d9d4c147 KH |
3994 | swallow_events (do_display) |
3995 | int do_display; | |
3a3b9632 | 3996 | { |
87dd9b9b RS |
3997 | int old_timers_run; |
3998 | ||
beecf6a1 | 3999 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4000 | { |
4001 | struct input_event *event; | |
4002 | ||
beecf6a1 KH |
4003 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4004 | ? kbd_fetch_ptr | |
4005 | : kbd_buffer); | |
3a3b9632 RS |
4006 | |
4007 | last_event_timestamp = event->timestamp; | |
4008 | ||
4009 | /* These two kinds of events get special handling | |
4010 | and don't actually appear to the command loop. */ | |
3b8f9651 | 4011 | if (event->kind == SELECTION_REQUEST_EVENT) |
3a3b9632 RS |
4012 | { |
4013 | #ifdef HAVE_X11 | |
4581e928 | 4014 | struct input_event copy; |
e0301c07 RS |
4015 | |
4016 | /* Remove it from the buffer before processing it, | |
4017 | since otherwise swallow_events called recursively could see it | |
4018 | and process it again. */ | |
4581e928 | 4019 | copy = *event; |
beecf6a1 | 4020 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4021 | input_pending = readable_events (0); |
4581e928 | 4022 | x_handle_selection_request (©); |
3a3b9632 RS |
4023 | #else |
4024 | /* We're getting selection request events, but we don't have | |
4025 | a window system. */ | |
4026 | abort (); | |
4027 | #endif | |
4028 | } | |
4029 | ||
3b8f9651 | 4030 | else if (event->kind == SELECTION_CLEAR_EVENT) |
3a3b9632 RS |
4031 | { |
4032 | #ifdef HAVE_X11 | |
e0301c07 RS |
4033 | struct input_event copy; |
4034 | ||
4035 | /* Remove it from the buffer before processing it, */ | |
4036 | copy = *event; | |
4037 | ||
beecf6a1 | 4038 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4039 | input_pending = readable_events (0); |
90c2bb0c | 4040 | x_handle_selection_clear (©); |
3a3b9632 RS |
4041 | #else |
4042 | /* We're getting selection request events, but we don't have | |
4043 | a window system. */ | |
4044 | abort (); | |
4045 | #endif | |
4046 | } | |
4047 | else | |
4048 | break; | |
4049 | } | |
4050 | ||
87dd9b9b | 4051 | old_timers_run = timers_run; |
d9d4c147 | 4052 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
4053 | |
4054 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4055 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4056 | } |
a612e298 | 4057 | \f |
d9d4c147 KH |
4058 | /* Record the start of when Emacs is idle, |
4059 | for the sake of running idle-time timers. */ | |
4060 | ||
07a59269 | 4061 | void |
d9d4c147 KH |
4062 | timer_start_idle () |
4063 | { | |
4064 | Lisp_Object timers; | |
4065 | ||
4066 | /* If we are already in the idle state, do nothing. */ | |
4067 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4068 | return; | |
4069 | ||
4070 | EMACS_GET_TIME (timer_idleness_start_time); | |
4071 | ||
3021d3a9 RS |
4072 | timer_last_idleness_start_time = timer_idleness_start_time; |
4073 | ||
d9d4c147 | 4074 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4075 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4076 | { |
4077 | Lisp_Object timer; | |
4078 | ||
7539e11f | 4079 | timer = XCAR (timers); |
d9d4c147 KH |
4080 | |
4081 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4082 | continue; | |
4083 | XVECTOR (timer)->contents[0] = Qnil; | |
4084 | } | |
4085 | } | |
4086 | ||
4087 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4088 | ||
07a59269 | 4089 | void |
d9d4c147 KH |
4090 | timer_stop_idle () |
4091 | { | |
4092 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4093 | } | |
4094 | ||
e044e87c RS |
4095 | /* This is only for debugging. */ |
4096 | struct input_event last_timer_event; | |
4097 | ||
c04cbc3b RS |
4098 | /* Check whether a timer has fired. To prevent larger problems we simply |
4099 | disregard elements that are not proper timers. Do not make a circular | |
4100 | timer list for the time being. | |
4101 | ||
4102 | Returns the number of seconds to wait until the next timer fires. If a | |
4103 | timer is triggering now, return zero seconds. | |
4104 | If no timer is active, return -1 seconds. | |
4105 | ||
4ec4ed6a RS |
4106 | If a timer is ripe, we run it, with quitting turned off. |
4107 | ||
4108 | DO_IT_NOW is now ignored. It used to mean that we should | |
4109 | run the timer directly instead of queueing a timer-event. | |
4110 | Now we always run timers directly. */ | |
c04cbc3b RS |
4111 | |
4112 | EMACS_TIME | |
4113 | timer_check (do_it_now) | |
4114 | int do_it_now; | |
4115 | { | |
4116 | EMACS_TIME nexttime; | |
9291c072 RS |
4117 | EMACS_TIME now, idleness_now; |
4118 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4119 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4120 | |
c04cbc3b RS |
4121 | EMACS_SET_SECS (nexttime, -1); |
4122 | EMACS_SET_USECS (nexttime, -1); | |
4123 | ||
9291c072 | 4124 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4125 | timers = Vtimer_list; |
9291c072 RS |
4126 | /* Consider the idle timers only if Emacs is idle. */ |
4127 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4128 | idle_timers = Vtimer_idle_list; | |
4129 | else | |
4130 | idle_timers = Qnil; | |
4131 | chosen_timer = Qnil; | |
4132 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4133 | |
9291c072 | 4134 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4135 | { |
9291c072 RS |
4136 | EMACS_GET_TIME (now); |
4137 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4138 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4139 | } | |
c04cbc3b | 4140 | |
9291c072 RS |
4141 | while (CONSP (timers) || CONSP (idle_timers)) |
4142 | { | |
9291c072 | 4143 | Lisp_Object *vector; |
8c907a56 | 4144 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4145 | EMACS_TIME timer_time, idle_timer_time; |
4146 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4147 | ||
4148 | /* Skip past invalid timers and timers already handled. */ | |
4149 | if (!NILP (timers)) | |
c04cbc3b | 4150 | { |
7539e11f | 4151 | timer = XCAR (timers); |
9291c072 RS |
4152 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4153 | { | |
7539e11f | 4154 | timers = XCDR (timers); |
9291c072 RS |
4155 | continue; |
4156 | } | |
4157 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4158 | |
9291c072 RS |
4159 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4160 | || !INTEGERP (vector[3]) | |
4161 | || ! NILP (vector[0])) | |
4162 | { | |
7539e11f | 4163 | timers = XCDR (timers); |
9291c072 RS |
4164 | continue; |
4165 | } | |
4166 | } | |
4167 | if (!NILP (idle_timers)) | |
4168 | { | |
7539e11f | 4169 | timer = XCAR (idle_timers); |
d9d4c147 | 4170 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4171 | { |
7539e11f | 4172 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4173 | continue; |
4174 | } | |
d9d4c147 KH |
4175 | vector = XVECTOR (timer)->contents; |
4176 | ||
4177 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4178 | || !INTEGERP (vector[3]) |
4179 | || ! NILP (vector[0])) | |
4180 | { | |
7539e11f | 4181 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4182 | continue; |
4183 | } | |
4184 | } | |
d9d4c147 | 4185 | |
9291c072 RS |
4186 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4187 | based on the next ordinary timer. | |
4188 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4189 | this timer becomes ripe (negative if it's already ripe). */ | |
4190 | if (!NILP (timers)) | |
4191 | { | |
7539e11f | 4192 | timer = XCAR (timers); |
9291c072 | 4193 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4194 | EMACS_SET_SECS (timer_time, |
4195 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4196 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4197 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4198 | } | |
ba8dfba8 | 4199 | |
9291c072 RS |
4200 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4201 | based on the next idle timer. */ | |
4202 | if (!NILP (idle_timers)) | |
4203 | { | |
7539e11f | 4204 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4205 | vector = XVECTOR (idle_timer)->contents; |
4206 | EMACS_SET_SECS (idle_timer_time, | |
4207 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4208 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4209 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4210 | } | |
ba8dfba8 | 4211 | |
9291c072 RS |
4212 | /* Decide which timer is the next timer, |
4213 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4214 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4215 | |
9291c072 RS |
4216 | if (! NILP (timers) && ! NILP (idle_timers)) |
4217 | { | |
4218 | EMACS_TIME temp; | |
4219 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4220 | if (EMACS_TIME_NEG_P (temp)) | |
4221 | { | |
4222 | chosen_timer = timer; | |
7539e11f | 4223 | timers = XCDR (timers); |
9291c072 | 4224 | difference = timer_difference; |
c04cbc3b | 4225 | } |
d9d4c147 | 4226 | else |
d9d4c147 | 4227 | { |
9291c072 | 4228 | chosen_timer = idle_timer; |
7539e11f | 4229 | idle_timers = XCDR (idle_timers); |
9291c072 | 4230 | difference = idle_timer_difference; |
d9d4c147 | 4231 | } |
7ea13e12 | 4232 | } |
9291c072 RS |
4233 | else if (! NILP (timers)) |
4234 | { | |
4235 | chosen_timer = timer; | |
7539e11f | 4236 | timers = XCDR (timers); |
9291c072 RS |
4237 | difference = timer_difference; |
4238 | } | |
4239 | else | |
4240 | { | |
4241 | chosen_timer = idle_timer; | |
7539e11f | 4242 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4243 | difference = idle_timer_difference; |
4244 | } | |
4245 | vector = XVECTOR (chosen_timer)->contents; | |
4246 | ||
bd55b860 | 4247 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4248 | if (EMACS_TIME_NEG_P (difference) |
4249 | || (EMACS_SECS (difference) == 0 | |
4250 | && EMACS_USECS (difference) == 0)) | |
4251 | { | |
4252 | if (NILP (vector[0])) | |
4253 | { | |
d925fb39 | 4254 | int was_locked = single_kboard; |
331379bf | 4255 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4256 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4257 | |
9291c072 RS |
4258 | /* Mark the timer as triggered to prevent problems if the lisp |
4259 | code fails to reschedule it right. */ | |
4260 | vector[0] = Qt; | |
4261 | ||
d925fb39 | 4262 | specbind (Qinhibit_quit, Qt); |
d0bbfc99 | 4263 | |
d925fb39 | 4264 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4265 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4266 | timers_run++; |
d925fb39 | 4267 | unbind_to (count, Qnil); |
4ec4ed6a | 4268 | |
d925fb39 RS |
4269 | /* Resume allowing input from any kboard, if that was true before. */ |
4270 | if (!was_locked) | |
4271 | any_kboard_state (); | |
9291c072 | 4272 | |
d925fb39 RS |
4273 | /* Since we have handled the event, |
4274 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4275 | } |
4276 | } | |
4277 | else | |
4278 | /* When we encounter a timer that is still waiting, | |
4279 | return the amount of time to wait before it is ripe. */ | |
4280 | { | |
4281 | UNGCPRO; | |
9291c072 RS |
4282 | return difference; |
4283 | } | |
c04cbc3b | 4284 | } |
9291c072 | 4285 | |
7ea13e12 RS |
4286 | /* No timers are pending in the future. */ |
4287 | /* Return 0 if we generated an event, and -1 if not. */ | |
4288 | UNGCPRO; | |
c04cbc3b RS |
4289 | return nexttime; |
4290 | } | |
4291 | \f | |
284f4730 | 4292 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4293 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4294 | static Lisp_Object func_key_syms; |
4295 | static Lisp_Object mouse_syms; | |
742fbed7 | 4296 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
4297 | static Lisp_Object mouse_wheel_syms; |
4298 | #endif | |
a24dc617 | 4299 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4300 | |
e9bf89a0 RS |
4301 | /* This is a list of keysym codes for special "accent" characters. |
4302 | It parallels lispy_accent_keys. */ | |
4303 | ||
4304 | static int lispy_accent_codes[] = | |
4305 | { | |
79a7046c | 4306 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4307 | XK_dead_circumflex, |
79a7046c RS |
4308 | #else |
4309 | 0, | |
4310 | #endif | |
4311 | #ifdef XK_dead_grave | |
e9bf89a0 | 4312 | XK_dead_grave, |
79a7046c RS |
4313 | #else |
4314 | 0, | |
4315 | #endif | |
4316 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4317 | XK_dead_tilde, |
79a7046c RS |
4318 | #else |
4319 | 0, | |
4320 | #endif | |
4321 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4322 | XK_dead_diaeresis, |
79a7046c RS |
4323 | #else |
4324 | 0, | |
4325 | #endif | |
4326 | #ifdef XK_dead_macron | |
e9bf89a0 | 4327 | XK_dead_macron, |
79a7046c RS |
4328 | #else |
4329 | 0, | |
4330 | #endif | |
4331 | #ifdef XK_dead_degree | |
e9bf89a0 | 4332 | XK_dead_degree, |
79a7046c RS |
4333 | #else |
4334 | 0, | |
4335 | #endif | |
4336 | #ifdef XK_dead_acute | |
e9bf89a0 | 4337 | XK_dead_acute, |
79a7046c RS |
4338 | #else |
4339 | 0, | |
4340 | #endif | |
4341 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4342 | XK_dead_cedilla, |
79a7046c RS |
4343 | #else |
4344 | 0, | |
4345 | #endif | |
4346 | #ifdef XK_dead_breve | |
e9bf89a0 | 4347 | XK_dead_breve, |
79a7046c RS |
4348 | #else |
4349 | 0, | |
4350 | #endif | |
4351 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4352 | XK_dead_ogonek, |
79a7046c RS |
4353 | #else |
4354 | 0, | |
4355 | #endif | |
4356 | #ifdef XK_dead_caron | |
e9bf89a0 | 4357 | XK_dead_caron, |
79a7046c RS |
4358 | #else |
4359 | 0, | |
4360 | #endif | |
4361 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4362 | XK_dead_doubleacute, |
79a7046c RS |
4363 | #else |
4364 | 0, | |
4365 | #endif | |
4366 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4367 | XK_dead_abovedot, |
79a7046c RS |
4368 | #else |
4369 | 0, | |
4370 | #endif | |
ed3230db DL |
4371 | #ifdef XK_dead_abovering |
4372 | XK_dead_abovering, | |
4373 | #else | |
4374 | 0, | |
4375 | #endif | |
4376 | #ifdef XK_dead_iota | |
4377 | XK_dead_iota, | |
4378 | #else | |
4379 | 0, | |
4380 | #endif | |
4381 | #ifdef XK_dead_belowdot | |
4382 | XK_dead_belowdot, | |
4383 | #else | |
4384 | 0, | |
4385 | #endif | |
4386 | #ifdef XK_dead_voiced_sound | |
4387 | XK_dead_voiced_sound, | |
4388 | #else | |
4389 | 0, | |
4390 | #endif | |
4391 | #ifdef XK_dead_semivoiced_sound | |
4392 | XK_dead_semivoiced_sound, | |
4393 | #else | |
4394 | 0, | |
4395 | #endif | |
4396 | #ifdef XK_dead_hook | |
4397 | XK_dead_hook, | |
4398 | #else | |
4399 | 0, | |
4400 | #endif | |
4401 | #ifdef XK_dead_horn | |
4402 | XK_dead_horn, | |
4403 | #else | |
4404 | 0, | |
4405 | #endif | |
e9bf89a0 RS |
4406 | }; |
4407 | ||
4408 | /* This is a list of Lisp names for special "accent" characters. | |
4409 | It parallels lispy_accent_codes. */ | |
4410 | ||
4411 | static char *lispy_accent_keys[] = | |
4412 | { | |
4413 | "dead-circumflex", | |
4414 | "dead-grave", | |
4415 | "dead-tilde", | |
4416 | "dead-diaeresis", | |
4417 | "dead-macron", | |
4418 | "dead-degree", | |
4419 | "dead-acute", | |
4420 | "dead-cedilla", | |
4421 | "dead-breve", | |
4422 | "dead-ogonek", | |
4423 | "dead-caron", | |
4424 | "dead-doubleacute", | |
4425 | "dead-abovedot", | |
ed3230db DL |
4426 | "dead-abovering", |
4427 | "dead-iota", | |
4428 | "dead-belowdot", | |
4429 | "dead-voiced-sound", | |
4430 | "dead-semivoiced-sound", | |
4431 | "dead-hook", | |
4432 | "dead-horn", | |
e9bf89a0 RS |
4433 | }; |
4434 | ||
e98a93eb GV |
4435 | #ifdef HAVE_NTGUI |
4436 | #define FUNCTION_KEY_OFFSET 0x0 | |
4437 | ||
4438 | char *lispy_function_keys[] = | |
4439 | { | |
4440 | 0, /* 0 */ | |
4441 | ||
4442 | 0, /* VK_LBUTTON 0x01 */ | |
4443 | 0, /* VK_RBUTTON 0x02 */ | |
4444 | "cancel", /* VK_CANCEL 0x03 */ | |
4445 | 0, /* VK_MBUTTON 0x04 */ | |
4446 | ||
4447 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
4448 | ||
4449 | "backspace", /* VK_BACK 0x08 */ | |
4450 | "tab", /* VK_TAB 0x09 */ | |
4451 | ||
4452 | 0, 0, /* 0x0A .. 0x0B */ | |
4453 | ||
4454 | "clear", /* VK_CLEAR 0x0C */ | |
4455 | "return", /* VK_RETURN 0x0D */ | |
4456 | ||
4457 | 0, 0, /* 0x0E .. 0x0F */ | |
4458 | ||
1161d367 GV |
4459 | 0, /* VK_SHIFT 0x10 */ |
4460 | 0, /* VK_CONTROL 0x11 */ | |
4461 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4462 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4463 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
4464 | |
4465 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
4466 | ||
1161d367 | 4467 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
4468 | |
4469 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
4470 | ||
4471 | 0, /* VK_SPACE 0x20 */ | |
4472 | "prior", /* VK_PRIOR 0x21 */ | |
4473 | "next", /* VK_NEXT 0x22 */ | |
4474 | "end", /* VK_END 0x23 */ | |
4475 | "home", /* VK_HOME 0x24 */ | |
4476 | "left", /* VK_LEFT 0x25 */ | |
4477 | "up", /* VK_UP 0x26 */ | |
4478 | "right", /* VK_RIGHT 0x27 */ | |
4479 | "down", /* VK_DOWN 0x28 */ | |
4480 | "select", /* VK_SELECT 0x29 */ | |
4481 | "print", /* VK_PRINT 0x2A */ | |
4482 | "execute", /* VK_EXECUTE 0x2B */ | |
4483 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4484 | "insert", /* VK_INSERT 0x2D */ | |
4485 | "delete", /* VK_DELETE 0x2E */ | |
4486 | "help", /* VK_HELP 0x2F */ | |
4487 | ||
4488 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
4489 | ||
4490 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4491 | ||
4492 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
4493 | ||
4494 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
4495 | ||
4496 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4497 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4498 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4499 | ||
e376f90d RS |
4500 | "lwindow", /* VK_LWIN 0x5B */ |
4501 | "rwindow", /* VK_RWIN 0x5C */ | |
4502 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
4503 | |
4504 | 0, 0, /* 0x5E .. 0x5F */ | |
4505 | ||
4506 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
4507 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4508 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4509 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4510 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4511 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4512 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4513 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4514 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4515 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4516 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4517 | "kp-add", /* VK_ADD 0x6B */ | |
4518 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4519 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4520 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4521 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4522 | "f1", /* VK_F1 0x70 */ | |
4523 | "f2", /* VK_F2 0x71 */ | |
4524 | "f3", /* VK_F3 0x72 */ | |
4525 | "f4", /* VK_F4 0x73 */ | |
4526 | "f5", /* VK_F5 0x74 */ | |
4527 | "f6", /* VK_F6 0x75 */ | |
4528 | "f7", /* VK_F7 0x76 */ | |
4529 | "f8", /* VK_F8 0x77 */ | |
4530 | "f9", /* VK_F9 0x78 */ | |
4531 | "f10", /* VK_F10 0x79 */ | |
4532 | "f11", /* VK_F11 0x7A */ | |
4533 | "f12", /* VK_F12 0x7B */ | |
4534 | "f13", /* VK_F13 0x7C */ | |
4535 | "f14", /* VK_F14 0x7D */ | |
4536 | "f15", /* VK_F15 0x7E */ | |
4537 | "f16", /* VK_F16 0x7F */ | |
4538 | "f17", /* VK_F17 0x80 */ | |
4539 | "f18", /* VK_F18 0x81 */ | |
4540 | "f19", /* VK_F19 0x82 */ | |
4541 | "f20", /* VK_F20 0x83 */ | |
4542 | "f21", /* VK_F21 0x84 */ | |
4543 | "f22", /* VK_F22 0x85 */ | |
4544 | "f23", /* VK_F23 0x86 */ | |
4545 | "f24", /* VK_F24 0x87 */ | |
4546 | ||
4547 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
4548 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
4549 | ||
4550 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
4551 | "scroll", /* VK_SCROLL 0x91 */ | |
4552 | ||
e376f90d RS |
4553 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4554 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4555 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4556 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4557 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4558 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4559 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4560 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4561 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4562 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4563 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4564 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4565 | ||
4566 | 0, 0, /* 0x9E .. 0x9F */ | |
4567 | ||
e98a93eb GV |
4568 | /* |
4569 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4570 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4571 | * No other API or message will distinguish left and right keys this way. |
4572 | */ | |
4573 | /* 0xA0 .. 0xEF */ | |
4574 | ||
4575 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4576 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4577 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4578 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4579 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4580 | ||
4581 | /* 0xF0 .. 0xF5 */ | |
4582 | ||
4583 | 0, 0, 0, 0, 0, 0, | |
4584 | ||
4585 | "attn", /* VK_ATTN 0xF6 */ | |
4586 | "crsel", /* VK_CRSEL 0xF7 */ | |
4587 | "exsel", /* VK_EXSEL 0xF8 */ | |
4588 | "ereof", /* VK_EREOF 0xF9 */ | |
4589 | "play", /* VK_PLAY 0xFA */ | |
4590 | "zoom", /* VK_ZOOM 0xFB */ | |
4591 | "noname", /* VK_NONAME 0xFC */ | |
4592 | "pa1", /* VK_PA1 0xFD */ | |
4593 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4594 | 0 /* 0xFF */ |
e98a93eb GV |
4595 | }; |
4596 | ||
04f215f0 | 4597 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4598 | |
ed3230db DL |
4599 | /* This should be dealt with in XTread_socket now, and that doesn't |
4600 | depend on the client system having the Kana syms defined. See also | |
4601 | the XK_kana_A case below. */ | |
4602 | #if 0 | |
37cd9f30 KH |
4603 | #ifdef XK_kana_A |
4604 | static char *lispy_kana_keys[] = | |
4605 | { | |
4606 | /* X Keysym value */ | |
4607 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4608 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4609 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4610 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4611 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4612 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4613 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4614 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4615 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4616 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
4617 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
4618 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
4619 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4620 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4621 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4622 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4623 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4624 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4625 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4626 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4627 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4628 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4629 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4630 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4631 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4632 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4633 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4634 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4635 | }; | |
4636 | #endif /* XK_kana_A */ | |
ed3230db | 4637 | #endif /* 0 */ |
37cd9f30 | 4638 | |
04f215f0 RS |
4639 | #define FUNCTION_KEY_OFFSET 0xff00 |
4640 | ||
284f4730 JB |
4641 | /* You'll notice that this table is arranged to be conveniently |
4642 | indexed by X Windows keysym values. */ | |
4643 | static char *lispy_function_keys[] = | |
4644 | { | |
4645 | /* X Keysym value */ | |
4646 | ||
75045dcb RS |
4647 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4648 | "backspace", "tab", "linefeed", "clear", | |
4649 | 0, "return", 0, 0, | |
4650 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4651 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4652 | 0, 0, 0, 0, |
75045dcb RS |
4653 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4654 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4655 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4656 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4657 | "eisu-toggle", /* 0xff30...3f */ | |
4658 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4659 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4660 | ||
75045dcb RS |
4661 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4662 | "down", "prior", "next", "end", | |
4663 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4664 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4665 | "print", | |
4666 | "execute", | |
4667 | "insert", | |
4668 | 0, /* 0xff64 */ | |
4669 | "undo", | |
4670 | "redo", | |
4671 | "menu", | |
4672 | "find", | |
4673 | "cancel", | |
4674 | "help", | |
4675 | "break", /* 0xff6b */ | |
4676 | ||
75045dcb RS |
4677 | 0, 0, 0, 0, |
4678 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4679 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4680 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4681 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4682 | "kp-tab", /* 0xff89 */ | |
4683 | 0, 0, 0, | |
4684 | "kp-enter", /* 0xff8d */ | |
4685 | 0, 0, 0, | |
4686 | "kp-f1", /* 0xff91 */ | |
4687 | "kp-f2", | |
4688 | "kp-f3", | |
4689 | "kp-f4", | |
872157e7 RS |
4690 | "kp-home", /* 0xff95 */ |
4691 | "kp-left", | |
4692 | "kp-up", | |
4693 | "kp-right", | |
4694 | "kp-down", | |
4695 | "kp-prior", /* kp-page-up */ | |
4696 | "kp-next", /* kp-page-down */ | |
4697 | "kp-end", | |
4698 | "kp-begin", | |
4699 | "kp-insert", | |
4700 | "kp-delete", | |
4701 | 0, /* 0xffa0 */ | |
4702 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4703 | "kp-multiply", /* 0xffaa */ |
4704 | "kp-add", | |
4705 | "kp-separator", | |
4706 | "kp-subtract", | |
4707 | "kp-decimal", | |
4708 | "kp-divide", /* 0xffaf */ | |
4709 | "kp-0", /* 0xffb0 */ | |
4710 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4711 | 0, /* 0xffba */ | |
4712 | 0, 0, | |
4713 | "kp-equal", /* 0xffbd */ | |
4714 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4715 | "f2", |
4716 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4717 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4718 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4719 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4720 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4721 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4722 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4723 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4724 | }; |
284f4730 | 4725 | |
04f215f0 RS |
4726 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4727 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4728 | ||
4729 | static char *iso_lispy_function_keys[] = | |
4730 | { | |
4731 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4732 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4733 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4734 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4735 | "iso-lefttab", /* 0xfe20 */ | |
4736 | "iso-move-line-up", "iso-move-line-down", | |
4737 | "iso-partial-line-up", "iso-partial-line-down", | |
4738 | "iso-partial-space-left", "iso-partial-space-right", | |
4739 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4740 | "iso-release-margin-left", "iso-release-margin-right", | |
4741 | "iso-release-both-margins", | |
4742 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4743 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4744 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4745 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4746 | }; | |
4747 | ||
4748 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4749 | |
8e1e4240 | 4750 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4751 | |
742fbed7 | 4752 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
4753 | /* mouse-wheel events are generated by the wheel on devices such as |
4754 | the MS Intellimouse. The wheel sits in between the left and right | |
4755 | mouse buttons, and is typically used to scroll or zoom the window | |
4756 | underneath the pointer. mouse-wheel events specify the object on | |
4757 | which they operate, and a delta corresponding to the amount and | |
4758 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4759 | generates a mouse-2 event. */ | |
4760 | static char *lispy_mouse_wheel_names[] = | |
4761 | { | |
4762 | "mouse-wheel" | |
4763 | }; | |
a24dc617 | 4764 | |
07de30b9 GV |
4765 | #endif /* WINDOWSNT */ |
4766 | ||
a24dc617 RS |
4767 | /* drag-n-drop events are generated when a set of selected files are |
4768 | dragged from another application and dropped onto an Emacs window. */ | |
4769 | static char *lispy_drag_n_drop_names[] = | |
4770 | { | |
4771 | "drag-n-drop" | |
4772 | }; | |
4773 | ||
3c370943 | 4774 | /* Scroll bar parts. */ |
4bb994d1 | 4775 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4776 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4777 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4778 | |
3c370943 JB |
4779 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4780 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4781 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4782 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4783 | }; |
4784 | ||
5bf68f6e AS |
4785 | /* User signal events. */ |
4786 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4787 | ||
4788 | Lisp_Object *lispy_user_signals[] = | |
4789 | { | |
4790 | &Qusr1_signal, &Qusr2_signal | |
4791 | }; | |
4792 | ||
4bb994d1 | 4793 | |
7b4aedb9 | 4794 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4795 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4796 | |
4797 | The elements have the form | |
4798 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4799 | where REST is the cdr of a position as it would be reported in the event. | |
4800 | ||
4801 | The make_lispy_event function stores positions here to tell the | |
4802 | difference between click and drag events, and to store the starting | |
4803 | location to be included in drag events. */ | |
4804 | ||
4805 | static Lisp_Object button_down_location; | |
88cb0656 | 4806 | |
fbcd35bd JB |
4807 | /* Information about the most recent up-going button event: Which |
4808 | button, what location, and what time. */ | |
4809 | ||
559f9d04 RS |
4810 | static int last_mouse_button; |
4811 | static int last_mouse_x; | |
4812 | static int last_mouse_y; | |
4813 | static unsigned long button_down_time; | |
fbcd35bd | 4814 | |
222d557c GM |
4815 | /* The maximum time between clicks to make a double-click, or Qnil to |
4816 | disable double-click detection, or Qt for no time limit. */ | |
4817 | ||
564dc952 | 4818 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4819 | |
222d557c GM |
4820 | /* Maximum number of pixels the mouse may be moved between clicks |
4821 | to make a double-click. */ | |
4822 | ||
31ade731 | 4823 | EMACS_INT double_click_fuzz; |
222d557c | 4824 | |
fbcd35bd JB |
4825 | /* The number of clicks in this multiple-click. */ |
4826 | ||
4827 | int double_click_count; | |
4828 | ||
284f4730 JB |
4829 | /* Given a struct input_event, build the lisp event which represents |
4830 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4831 | movement buffer, which should have a movement event in it. |
4832 | ||
4833 | Note that events must be passed to this function in the order they | |
4834 | are received; this function stores the location of button presses | |
4835 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4836 | |
4837 | static Lisp_Object | |
4838 | make_lispy_event (event) | |
4839 | struct input_event *event; | |
4840 | { | |
79a7046c RS |
4841 | int i; |
4842 | ||
0220c518 | 4843 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4844 | { |
284f4730 | 4845 | /* A simple keystroke. */ |
3b8f9651 | 4846 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 4847 | { |
9343ab07 | 4848 | Lisp_Object lispy_c; |
e9bf89a0 | 4849 | int c = event->code & 0377; |
5a1c6df8 JB |
4850 | /* Turn ASCII characters into control characters |
4851 | when proper. */ | |
4852 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4853 | c = make_ctrl_char (c); |
4854 | ||
4855 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4856 | just above, and the shift key was taken care of by the X code, | |
4857 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4858 | c |= (event->modifiers |
4859 | & (meta_modifier | alt_modifier | |
4860 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4861 | /* Distinguish Shift-SPC from SPC. */ |
4862 | if ((event->code & 0377) == 040 | |
4863 | && event->modifiers & shift_modifier) | |
4864 | c |= shift_modifier; | |
559f9d04 | 4865 | button_down_time = 0; |
bb9e9bed | 4866 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4867 | return lispy_c; |
86e5706b | 4868 | } |
284f4730 | 4869 | |
3b8f9651 | 4870 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
4871 | { |
4872 | Lisp_Object lispy_c; | |
4873 | ||
4874 | XSETFASTINT (lispy_c, event->code); | |
4875 | return lispy_c; | |
4876 | } | |
4877 | ||
284f4730 JB |
4878 | /* A function key. The symbol may need to have modifier prefixes |
4879 | tacked onto it. */ | |
3b8f9651 | 4880 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 4881 | button_down_time = 0; |
e9bf89a0 RS |
4882 | |
4883 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4884 | if (event->code == lispy_accent_codes[i]) | |
4885 | return modify_event_symbol (i, | |
4886 | event->modifiers, | |
80e4aa30 | 4887 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4888 | lispy_accent_keys, &accent_key_syms, |
4889 | (sizeof (lispy_accent_keys) | |
4890 | / sizeof (lispy_accent_keys[0]))); | |
4891 | ||
ed3230db | 4892 | #if 0 |
37cd9f30 KH |
4893 | #ifdef XK_kana_A |
4894 | if (event->code >= 0x400 && event->code < 0x500) | |
4895 | return modify_event_symbol (event->code - 0x400, | |
4896 | event->modifiers & ~shift_modifier, | |
4897 | Qfunction_key, Qnil, | |
4898 | lispy_kana_keys, &func_key_syms, | |
4899 | (sizeof (lispy_kana_keys) | |
4900 | / sizeof (lispy_kana_keys[0]))); | |
4901 | #endif /* XK_kana_A */ | |
ed3230db | 4902 | #endif /* 0 */ |
37cd9f30 | 4903 | |
111c4138 | 4904 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4905 | if (event->code < FUNCTION_KEY_OFFSET |
4906 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4907 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4908 | event->modifiers, | |
4909 | Qfunction_key, Qnil, | |
4910 | iso_lispy_function_keys, &func_key_syms, | |
4911 | (sizeof (iso_lispy_function_keys) | |
4912 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 4913 | #endif |
656280a6 | 4914 | |
4c8bc894 SM |
4915 | /* Handle system-specific or unknown keysyms. */ |
4916 | if (event->code & (1 << 28) | |
4917 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 4918 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
4919 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
4920 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 4921 | { |
4c8bc894 SM |
4922 | /* We need to use an alist rather than a vector as the cache |
4923 | since we can't make a vector long enuf. */ | |
4924 | if (NILP (current_kboard->system_key_syms)) | |
4925 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
4926 | return modify_event_symbol (event->code, | |
4927 | event->modifiers, | |
4928 | Qfunction_key, | |
4929 | current_kboard->Vsystem_key_alist, | |
4930 | 0, ¤t_kboard->system_key_syms, | |
4931 | (unsigned) -1); | |
656280a6 | 4932 | } |
656280a6 GM |
4933 | |
4934 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
4935 | event->modifiers, | |
4936 | Qfunction_key, Qnil, | |
4937 | lispy_function_keys, &func_key_syms, | |
4938 | (sizeof (lispy_function_keys) | |
4939 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4940 | |
514354e9 | 4941 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4942 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4943 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 4944 | case MOUSE_CLICK_EVENT: |
7ee32cda | 4945 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 4946 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 4947 | #endif |
284f4730 | 4948 | { |
e9bf89a0 | 4949 | int button = event->code; |
559f9d04 | 4950 | int is_double; |
7b4aedb9 | 4951 | Lisp_Object position; |
dbc4e1c1 JB |
4952 | Lisp_Object *start_pos_ptr; |
4953 | Lisp_Object start_pos; | |
c5cf2109 | 4954 | Lisp_Object window; |
284f4730 | 4955 | |
8c907a56 GM |
4956 | position = Qnil; |
4957 | ||
7b4aedb9 | 4958 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 4959 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 4960 | { |
7b4aedb9 | 4961 | int part; |
c5cf2109 | 4962 | struct frame *f = XFRAME (event->frame_or_window); |
7b4aedb9 | 4963 | Lisp_Object posn; |
7ee32cda | 4964 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4965 | int row, column; |
4966 | ||
5da3133a RS |
4967 | /* Ignore mouse events that were made on frame that |
4968 | have been deleted. */ | |
4969 | if (! FRAME_LIVE_P (f)) | |
4970 | return Qnil; | |
4971 | ||
7ee32cda GM |
4972 | /* EVENT->x and EVENT->y are frame-relative pixel |
4973 | coordinates at this place. Under old redisplay, COLUMN | |
4974 | and ROW are set to frame relative glyph coordinates | |
4975 | which are then used to determine whether this click is | |
4976 | in a menu (non-toolkit version). */ | |
4977 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4978 | &column, &row, NULL, 1); | |
7b4aedb9 | 4979 | |
eef045bf RS |
4980 | #ifndef USE_X_TOOLKIT |
4981 | /* In the non-toolkit version, clicks on the menu bar | |
4982 | are ordinary button events in the event buffer. | |
4983 | Distinguish them, and invoke the menu. | |
4984 | ||
4985 | (In the toolkit version, the toolkit handles the menu bar | |
4986 | and Emacs doesn't know about it until after the user | |
4987 | makes a selection.) */ | |
2ee250ec RS |
4988 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4989 | && (event->modifiers & down_modifier)) | |
bb936752 | 4990 | { |
b7c49376 | 4991 | Lisp_Object items, item; |
0a0e8fe6 RS |
4992 | int hpos; |
4993 | int i; | |
4994 | ||
2ee250ec | 4995 | #if 0 |
0a0e8fe6 RS |
4996 | /* Activate the menu bar on the down event. If the |
4997 | up event comes in before the menu code can deal with it, | |
4998 | just ignore it. */ | |
4999 | if (! (event->modifiers & down_modifier)) | |
5000 | return Qnil; | |
2ee250ec | 5001 | #endif |
0aafc975 | 5002 | |
7ee32cda | 5003 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5004 | item = Qnil; |
5ec75a55 | 5005 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5006 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5007 | { |
5008 | Lisp_Object pos, string; | |
129004d3 GM |
5009 | string = AREF (items, i + 1); |
5010 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5011 | if (NILP (string)) |
5012 | break; | |
9e20143a | 5013 | if (column >= XINT (pos) |
d5db4077 | 5014 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5015 | { |
129004d3 | 5016 | item = AREF (items, i); |
b7c49376 RS |
5017 | break; |
5018 | } | |
5ec75a55 | 5019 | } |
9e20143a | 5020 | |
7ee32cda GM |
5021 | /* ELisp manual 2.4b says (x y) are window relative but |
5022 | code says they are frame-relative. */ | |
5ec75a55 RS |
5023 | position |
5024 | = Fcons (event->frame_or_window, | |
5025 | Fcons (Qmenu_bar, | |
5026 | Fcons (Fcons (event->x, event->y), | |
5027 | Fcons (make_number (event->timestamp), | |
5028 | Qnil)))); | |
5029 | ||
b7c49376 | 5030 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5031 | } |
eef045bf | 5032 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 5033 | |
7ee32cda GM |
5034 | /* Set `window' to the window under frame pixel coordinates |
5035 | event->x/event->y. */ | |
5036 | window = window_from_coordinates (f, XINT (event->x), | |
5037 | XINT (event->y), &part, 0); | |
0aafc975 | 5038 | |
8c18cbfb | 5039 | if (!WINDOWP (window)) |
78ced549 RS |
5040 | { |
5041 | window = event->frame_or_window; | |
5042 | posn = Qnil; | |
5043 | } | |
284f4730 | 5044 | else |
7b4aedb9 | 5045 | { |
7ee32cda GM |
5046 | /* It's a click in window window at frame coordinates |
5047 | event->x/ event->y. */ | |
5048 | struct window *w = XWINDOW (window); | |
5049 | ||
5050 | /* Get window relative coordinates. Original code | |
5051 | `rounded' this to glyph boundaries. */ | |
5052 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5053 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5054 | ||
5055 | /* Set event coordinates to window-relative coordinates | |
5056 | for constructing the Lisp event below. */ | |
5057 | XSETINT (event->x, wx); | |
5058 | XSETINT (event->y, wy); | |
5059 | ||
5060 | if (part == 1 || part == 3) | |
5061 | { | |
902ae620 | 5062 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
5063 | the mouse that may have a `local-map' property. */ |
5064 | Lisp_Object string; | |
5065 | int charpos; | |
5066 | ||
045dee35 | 5067 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
5068 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
5069 | if (STRINGP (string)) | |
5070 | string_info = Fcons (string, make_number (charpos)); | |
5071 | } | |
7b4aedb9 JB |
5072 | else if (part == 2) |
5073 | posn = Qvertical_line; | |
7d60ad8a GM |
5074 | else if (part == 6 || part == 7) |
5075 | { | |
5076 | int charpos; | |
5077 | Lisp_Object object = marginal_area_string (w, wx, wy, part, | |
5078 | &charpos); | |
5079 | posn = (part == 6) ? Qleft_margin : Qright_margin; | |
5080 | if (STRINGP (object)) | |
5081 | string_info = Fcons (object, make_number (charpos)); | |
5082 | } | |
7b4aedb9 | 5083 | else |
a955ffa2 GM |
5084 | { |
5085 | Lisp_Object object; | |
5086 | struct display_pos p; | |
5087 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5088 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
5089 | if (STRINGP (object)) |
5090 | string_info | |
5091 | = Fcons (object, | |
5092 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 5093 | } |
7b4aedb9 JB |
5094 | } |
5095 | ||
5ec75a55 RS |
5096 | position |
5097 | = Fcons (window, | |
5098 | Fcons (posn, | |
5099 | Fcons (Fcons (event->x, event->y), | |
5100 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
5101 | (NILP (string_info) |
5102 | ? Qnil | |
5103 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 5104 | } |
7ee32cda | 5105 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5106 | else |
88cb0656 | 5107 | { |
7ee32cda | 5108 | /* It's a scrollbar click. */ |
9e20143a RS |
5109 | Lisp_Object portion_whole; |
5110 | Lisp_Object part; | |
5111 | ||
5112 | window = event->frame_or_window; | |
5113 | portion_whole = Fcons (event->x, event->y); | |
5114 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5115 | |
db08707d RS |
5116 | position |
5117 | = Fcons (window, | |
5118 | Fcons (Qvertical_scroll_bar, | |
5119 | Fcons (portion_whole, | |
5120 | Fcons (make_number (event->timestamp), | |
5121 | Fcons (part, Qnil))))); | |
88cb0656 | 5122 | } |
7ee32cda | 5123 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5124 | |
129004d3 | 5125 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5126 | { |
5127 | button_down_location = larger_vector (button_down_location, | |
5128 | button + 1, Qnil); | |
5129 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5130 | } | |
5131 | ||
129004d3 | 5132 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5133 | start_pos = *start_pos_ptr; |
5134 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5135 | |
c5cf2109 GM |
5136 | { |
5137 | /* On window-system frames, use the value of | |
5138 | double-click-fuzz as is. On other frames, interpret it | |
5139 | as a multiple of 1/8 characters. */ | |
5140 | struct frame *f; | |
5141 | int fuzz; | |
5142 | ||
5143 | if (WINDOWP (event->frame_or_window)) | |
5144 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5145 | else if (FRAMEP (event->frame_or_window)) | |
5146 | f = XFRAME (event->frame_or_window); | |
5147 | else | |
5148 | abort (); | |
5149 | ||
5150 | if (FRAME_WINDOW_P (f)) | |
5151 | fuzz = double_click_fuzz; | |
5152 | else | |
5153 | fuzz = double_click_fuzz / 8; | |
5154 | ||
5155 | is_double = (button == last_mouse_button | |
5156 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5157 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5158 | && button_down_time != 0 | |
5159 | && (EQ (Vdouble_click_time, Qt) | |
5160 | || (INTEGERP (Vdouble_click_time) | |
5161 | && ((int)(event->timestamp - button_down_time) | |
5162 | < XINT (Vdouble_click_time))))); | |
5163 | } | |
222d557c | 5164 | |
559f9d04 RS |
5165 | last_mouse_button = button; |
5166 | last_mouse_x = XINT (event->x); | |
5167 | last_mouse_y = XINT (event->y); | |
5168 | ||
7b4aedb9 JB |
5169 | /* If this is a button press, squirrel away the location, so |
5170 | we can decide later whether it was a click or a drag. */ | |
5171 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5172 | { |
5173 | if (is_double) | |
5174 | { | |
5175 | double_click_count++; | |
5176 | event->modifiers |= ((double_click_count > 2) | |
5177 | ? triple_modifier | |
5178 | : double_modifier); | |
5179 | } | |
5180 | else | |
5181 | double_click_count = 1; | |
5182 | button_down_time = event->timestamp; | |
5183 | *start_pos_ptr = Fcopy_alist (position); | |
5184 | } | |
7b4aedb9 | 5185 | |
88cb0656 | 5186 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5187 | see if this was a click or a drag. */ |
88cb0656 JB |
5188 | else if (event->modifiers & up_modifier) |
5189 | { | |
129004d3 GM |
5190 | /* If we did not see a down before this up, ignore the up. |
5191 | Probably this happened because the down event chose a | |
5192 | menu item. It would be an annoyance to treat the | |
5193 | release of the button that chose the menu item as a | |
5194 | separate event. */ | |
48e416d4 | 5195 | |
8c18cbfb | 5196 | if (!CONSP (start_pos)) |
48e416d4 RS |
5197 | return Qnil; |
5198 | ||
88cb0656 | 5199 | event->modifiers &= ~up_modifier; |
48e416d4 | 5200 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5201 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5202 | event->modifiers |= click_modifier; |
5203 | else | |
48e416d4 | 5204 | #endif |
dbc4e1c1 | 5205 | { |
9b8eb840 | 5206 | Lisp_Object down; |
d31053f9 | 5207 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5208 | |
d31053f9 RS |
5209 | /* The third element of every position |
5210 | should be the (x,y) pair. */ | |
5211 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5212 | if (CONSP (down) |
5213 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5214 | { |
7a6a97d7 SM |
5215 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5216 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5217 | } |
5218 | ||
5219 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5220 | && ydiff < double_click_fuzz | |
5221 | && ydiff > - double_click_fuzz) | |
5222 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5223 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5224 | else |
5225 | { | |
d31053f9 RS |
5226 | button_down_time = 0; |
5227 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5228 | } |
129004d3 | 5229 | |
bc536d84 RS |
5230 | /* Don't check is_double; treat this as multiple |
5231 | if the down-event was multiple. */ | |
5232 | if (double_click_count > 1) | |
5233 | event->modifiers |= ((double_click_count > 2) | |
5234 | ? triple_modifier | |
5235 | : double_modifier); | |
dbc4e1c1 | 5236 | } |
88cb0656 JB |
5237 | } |
5238 | else | |
5239 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5240 | the up_modifier set. */ |
88cb0656 JB |
5241 | abort (); |
5242 | ||
88cb0656 | 5243 | { |
7b4aedb9 | 5244 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5245 | Lisp_Object head; |
5246 | ||
5247 | head = modify_event_symbol (button, | |
5248 | event->modifiers, | |
8e1e4240 GM |
5249 | Qmouse_click, Vlispy_mouse_stem, |
5250 | NULL, | |
5251 | &mouse_syms, | |
5252 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5253 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5254 | return Fcons (head, |
5255 | Fcons (start_pos, | |
5256 | Fcons (position, | |
5257 | Qnil))); | |
fbcd35bd JB |
5258 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5259 | return Fcons (head, | |
5260 | Fcons (position, | |
5261 | Fcons (make_number (double_click_count), | |
5262 | Qnil))); | |
88cb0656 JB |
5263 | else |
5264 | return Fcons (head, | |
7b4aedb9 | 5265 | Fcons (position, |
88cb0656 JB |
5266 | Qnil)); |
5267 | } | |
284f4730 | 5268 | } |
db08707d | 5269 | |
05be3964 | 5270 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5271 | |
5272 | /* We don't have down and up events if using toolkit scroll bars, | |
5273 | so make this always a click event. Store in the `part' of | |
5274 | the Lisp event a symbol which maps to the following actions: | |
5275 | ||
5276 | `above_handle' page up | |
5277 | `below_handle' page down | |
5278 | `up' line up | |
5279 | `down' line down | |
5280 | `top' top of buffer | |
5281 | `bottom' bottom of buffer | |
5282 | `handle' thumb has been dragged. | |
5283 | `end-scroll' end of interaction with scroll bar | |
5284 | ||
5285 | The incoming input_event contains in its `part' member an | |
5286 | index of type `enum scroll_bar_part' which we can use as an | |
5287 | index in scroll_bar_parts to get the appropriate symbol. */ | |
5288 | ||
3b8f9651 | 5289 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5290 | { |
5291 | Lisp_Object position, head, window, portion_whole, part; | |
5292 | ||
5293 | window = event->frame_or_window; | |
5294 | portion_whole = Fcons (event->x, event->y); | |
5295 | part = *scroll_bar_parts[(int) event->part]; | |
5296 | ||
5297 | position | |
5298 | = Fcons (window, | |
5299 | Fcons (Qvertical_scroll_bar, | |
5300 | Fcons (portion_whole, | |
5301 | Fcons (make_number (event->timestamp), | |
5302 | Fcons (part, Qnil))))); | |
5303 | ||
5304 | /* Always treat scroll bar events as clicks. */ | |
5305 | event->modifiers |= click_modifier; | |
05be3964 | 5306 | event->modifiers &= ~up_modifier; |
7ee32cda GM |
5307 | |
5308 | /* Get the symbol we should use for the mouse click. */ | |
5309 | head = modify_event_symbol (event->code, | |
5310 | event->modifiers, | |
8e1e4240 GM |
5311 | Qmouse_click, |
5312 | Vlispy_mouse_stem, | |
5313 | NULL, &mouse_syms, | |
5314 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5315 | return Fcons (head, Fcons (position, Qnil)); |
5316 | } | |
5317 | ||
5318 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
5319 | ||
db08707d | 5320 | #ifdef WINDOWSNT |
3b8f9651 | 5321 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5322 | { |
5323 | int button = event->code; | |
5324 | int is_double; | |
5325 | Lisp_Object position; | |
5326 | Lisp_Object *start_pos_ptr; | |
5327 | Lisp_Object start_pos; | |
5328 | ||
db08707d RS |
5329 | { |
5330 | Lisp_Object window; | |
5331 | Lisp_Object portion_whole; | |
5332 | Lisp_Object part; | |
5333 | ||
5334 | window = event->frame_or_window; | |
5335 | portion_whole = Fcons (event->x, event->y); | |
5336 | part = *scroll_bar_parts[(int) event->part]; | |
5337 | ||
e8886a1d RS |
5338 | position |
5339 | = Fcons (window, | |
5340 | Fcons (Qvertical_scroll_bar, | |
5341 | Fcons (portion_whole, | |
5342 | Fcons (make_number (event->timestamp), | |
5343 | Fcons (part, Qnil))))); | |
db08707d RS |
5344 | } |
5345 | ||
fbd6baed | 5346 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5347 | event->modifiers |= click_modifier; |
5348 | ||
5349 | { | |
5350 | /* Get the symbol we should use for the mouse click. */ | |
5351 | Lisp_Object head; | |
5352 | ||
5353 | head = modify_event_symbol (button, | |
5354 | event->modifiers, | |
8e1e4240 GM |
5355 | Qmouse_click, |
5356 | Vlispy_mouse_stem, | |
5357 | NULL, &mouse_syms, | |
5358 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5359 | return Fcons (head, |
5360 | Fcons (position, | |
5361 | Qnil)); | |
5362 | } | |
5363 | } | |
1e7c162f RS |
5364 | #endif /* WINDOWSNT */ |
5365 | #if defined(WINDOWSNT) || defined(MAC_OSX) | |
3b8f9651 | 5366 | case MOUSE_WHEEL_EVENT: |
07de30b9 GV |
5367 | { |
5368 | int part; | |
5369 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5370 | Lisp_Object window; | |
5371 | Lisp_Object posn; | |
5372 | Lisp_Object head, position; | |
5373 | int row, column; | |
5374 | ||
5375 | /* Ignore mouse events that were made on frame that | |
5376 | have been deleted. */ | |
5377 | if (! FRAME_LIVE_P (f)) | |
5378 | return Qnil; | |
5379 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5380 | &column, &row, NULL, 1); | |
afabdbe5 JR |
5381 | window = window_from_coordinates (f, XINT (event->x), |
5382 | XINT (event->y), &part, 0); | |
07de30b9 GV |
5383 | |
5384 | if (!WINDOWP (window)) | |
5385 | { | |
5386 | window = event->frame_or_window; | |
5387 | posn = Qnil; | |
5388 | } | |
5389 | else | |
5390 | { | |
5391 | int pixcolumn, pixrow; | |
5392 | column -= XINT (XWINDOW (window)->left); | |
5393 | row -= XINT (XWINDOW (window)->top); | |
e1bfeab2 JR |
5394 | glyph_to_pixel_coords (XWINDOW(window), column, row, |
5395 | &pixcolumn, &pixrow); | |
07de30b9 GV |
5396 | XSETINT (event->x, pixcolumn); |
5397 | XSETINT (event->y, pixrow); | |
5398 | ||
5399 | if (part == 1) | |
5400 | posn = Qmode_line; | |
5401 | else if (part == 2) | |
5402 | posn = Qvertical_line; | |
7ee32cda | 5403 | else if (part == 3) |
045dee35 | 5404 | posn = Qheader_line; |
07de30b9 | 5405 | else |
a955ffa2 GM |
5406 | { |
5407 | Lisp_Object object; | |
5408 | struct display_pos p; | |
5409 | buffer_posn_from_coords (XWINDOW (window), &column, &row, | |
5410 | &object, &p); | |
5411 | posn = make_number (CHARPOS (p.pos)); | |
5412 | } | |
07de30b9 | 5413 | } |
db08707d | 5414 | |
07de30b9 GV |
5415 | { |
5416 | Lisp_Object head, position; | |
5417 | ||
5418 | position | |
5419 | = Fcons (window, | |
5420 | Fcons (posn, | |
5421 | Fcons (Fcons (event->x, event->y), | |
5422 | Fcons (make_number (event->timestamp), | |
5423 | Qnil)))); | |
5424 | ||
5425 | head = modify_event_symbol (0, event->modifiers, | |
5426 | Qmouse_wheel, Qnil, | |
5427 | lispy_mouse_wheel_names, | |
5428 | &mouse_wheel_syms, 1); | |
5429 | return Fcons (head, | |
5430 | Fcons (position, | |
406b073d JR |
5431 | /* Insert 1 here so event-click-count works. */ |
5432 | Fcons (make_number (1), | |
5433 | Fcons (make_number (event->code), | |
5434 | Qnil)))); | |
07de30b9 GV |
5435 | } |
5436 | } | |
742fbed7 | 5437 | #endif /* WINDOWSNT || MAC_OSX */ |
a24dc617 | 5438 | |
3b8f9651 | 5439 | case DRAG_N_DROP_EVENT: |
a24dc617 RS |
5440 | { |
5441 | int part; | |
5442 | FRAME_PTR f; | |
5443 | Lisp_Object window; | |
5444 | Lisp_Object posn; | |
a24dc617 | 5445 | Lisp_Object files; |
a24dc617 RS |
5446 | |
5447 | /* The frame_or_window field should be a cons of the frame in | |
5448 | which the event occurred and a list of the filenames | |
5449 | dropped. */ | |
5450 | if (! CONSP (event->frame_or_window)) | |
5451 | abort (); | |
5452 | ||
7539e11f KR |
5453 | f = XFRAME (XCAR (event->frame_or_window)); |
5454 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5455 | |
5456 | /* Ignore mouse events that were made on frames that | |
5457 | have been deleted. */ | |
5458 | if (! FRAME_LIVE_P (f)) | |
5459 | return Qnil; | |
afabdbe5 JR |
5460 | |
5461 | window = window_from_coordinates (f, XINT (event->x), | |
5462 | XINT (event->y), &part, 0); | |
a24dc617 RS |
5463 | |
5464 | if (!WINDOWP (window)) | |
5465 | { | |
7539e11f | 5466 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5467 | posn = Qnil; |
5468 | } | |
5469 | else | |
5470 | { | |
7ee32cda GM |
5471 | /* It's an event in window `window' at frame coordinates |
5472 | event->x/ event->y. */ | |
5473 | struct window *w = XWINDOW (window); | |
5474 | ||
5475 | /* Get window relative coordinates. */ | |
5476 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5477 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5478 | ||
5479 | /* Set event coordinates to window-relative coordinates | |
5480 | for constructing the Lisp event below. */ | |
5481 | XSETINT (event->x, wx); | |
5482 | XSETINT (event->y, wy); | |
a24dc617 RS |
5483 | |
5484 | if (part == 1) | |
5485 | posn = Qmode_line; | |
5486 | else if (part == 2) | |
5487 | posn = Qvertical_line; | |
7ee32cda | 5488 | else if (part == 3) |
045dee35 | 5489 | posn = Qheader_line; |
a24dc617 | 5490 | else |
a955ffa2 GM |
5491 | { |
5492 | Lisp_Object object; | |
5493 | struct display_pos p; | |
5494 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5495 | posn = make_number (CHARPOS (p.pos)); | |
5496 | } | |
a24dc617 RS |
5497 | } |
5498 | ||
5499 | { | |
5500 | Lisp_Object head, position; | |
5501 | ||
5502 | position | |
5503 | = Fcons (window, | |
5504 | Fcons (posn, | |
5505 | Fcons (Fcons (event->x, event->y), | |
5506 | Fcons (make_number (event->timestamp), | |
5507 | Qnil)))); | |
5508 | ||
5509 | head = modify_event_symbol (0, event->modifiers, | |
5510 | Qdrag_n_drop, Qnil, | |
5511 | lispy_drag_n_drop_names, | |
5512 | &drag_n_drop_syms, 1); | |
5513 | return Fcons (head, | |
5514 | Fcons (position, | |
5515 | Fcons (files, | |
5516 | Qnil))); | |
5517 | } | |
5518 | } | |
514354e9 | 5519 | #endif /* HAVE_MOUSE */ |
284f4730 | 5520 | |
e0f712ba | 5521 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) |
da8f7368 GM |
5522 | case MENU_BAR_EVENT: |
5523 | if (EQ (event->arg, event->frame_or_window)) | |
5524 | /* This is the prefix key. We translate this to | |
5525 | `(menu_bar)' because the code in keyboard.c for menu | |
5526 | events, which we use, relies on this. */ | |
5527 | return Fcons (Qmenu_bar, Qnil); | |
5528 | return event->arg; | |
2470a66f KH |
5529 | #endif |
5530 | ||
9ea173e8 | 5531 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5532 | if (EQ (event->arg, event->frame_or_window)) |
5533 | /* This is the prefix key. We translate this to | |
27fd22dc | 5534 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5535 | events, which we use, relies on this. */ |
5536 | return Fcons (Qtool_bar, Qnil); | |
5537 | else if (SYMBOLP (event->arg)) | |
5538 | return apply_modifiers (event->modifiers, event->arg); | |
5539 | return event->arg; | |
5540 | ||
5541 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5542 | /* A user signal. */ |
5543 | return *lispy_user_signals[event->code]; | |
5544 | ||
3b8f9651 | 5545 | case SAVE_SESSION_EVENT: |
4ebc27a5 JD |
5546 | return Qsave_session; |
5547 | ||
284f4730 JB |
5548 | /* The 'kind' field of the event is something we don't recognize. */ |
5549 | default: | |
48e416d4 | 5550 | abort (); |
284f4730 JB |
5551 | } |
5552 | } | |
5553 | ||
514354e9 | 5554 | #ifdef HAVE_MOUSE |
6cbff1cb | 5555 | |
284f4730 | 5556 | static Lisp_Object |
7b4aedb9 | 5557 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5558 | FRAME_PTR frame; |
7b4aedb9 | 5559 | Lisp_Object bar_window; |
3c370943 | 5560 | enum scroll_bar_part part; |
284f4730 | 5561 | Lisp_Object x, y; |
e5d77022 | 5562 | unsigned long time; |
284f4730 | 5563 | { |
3c370943 | 5564 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5565 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5566 | { |
9b8eb840 | 5567 | Lisp_Object part_sym; |
4bb994d1 | 5568 | |
9b8eb840 | 5569 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5570 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5571 | (Fcons (Fcons (bar_window, |
3c370943 | 5572 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5573 | Fcons (Fcons (x, y), |
5574 | Fcons (make_number (time), | |
cb5df6ae | 5575 | Fcons (part_sym, |
4bb994d1 JB |
5576 | Qnil))))), |
5577 | Qnil))); | |
5578 | } | |
5579 | ||
5580 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5581 | else |
5582 | { | |
4bb994d1 | 5583 | int area; |
9e20143a | 5584 | Lisp_Object window; |
4bb994d1 | 5585 | Lisp_Object posn; |
9e20143a | 5586 | |
9e20143a | 5587 | if (frame) |
7ee32cda GM |
5588 | /* It's in a frame; which window on that frame? */ |
5589 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
5590 | else |
5591 | window = Qnil; | |
4bb994d1 | 5592 | |
8c18cbfb | 5593 | if (WINDOWP (window)) |
4bb994d1 | 5594 | { |
7ee32cda | 5595 | struct window *w = XWINDOW (window); |
7ee32cda | 5596 | int wx, wy; |
7ee32cda GM |
5597 | |
5598 | /* Get window relative coordinates. */ | |
5599 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
5600 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
5601 | XSETINT (x, wx); | |
5602 | XSETINT (y, wy); | |
5603 | ||
4bb994d1 JB |
5604 | if (area == 1) |
5605 | posn = Qmode_line; | |
5606 | else if (area == 2) | |
5607 | posn = Qvertical_line; | |
7ee32cda | 5608 | else if (area == 3) |
045dee35 | 5609 | posn = Qheader_line; |
4bb994d1 | 5610 | else |
a955ffa2 GM |
5611 | { |
5612 | Lisp_Object object; | |
5613 | struct display_pos p; | |
5614 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5615 | posn = make_number (CHARPOS (p.pos)); | |
5616 | } | |
4bb994d1 | 5617 | } |
e9bf89a0 RS |
5618 | else if (frame != 0) |
5619 | { | |
18cd2eeb | 5620 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5621 | posn = Qnil; |
5622 | } | |
284f4730 | 5623 | else |
4bb994d1 JB |
5624 | { |
5625 | window = Qnil; | |
5626 | posn = Qnil; | |
bb9e9bed KH |
5627 | XSETFASTINT (x, 0); |
5628 | XSETFASTINT (y, 0); | |
4bb994d1 | 5629 | } |
284f4730 | 5630 | |
4bb994d1 JB |
5631 | return Fcons (Qmouse_movement, |
5632 | Fcons (Fcons (window, | |
5633 | Fcons (posn, | |
5634 | Fcons (Fcons (x, y), | |
5635 | Fcons (make_number (time), | |
5636 | Qnil)))), | |
5637 | Qnil)); | |
5638 | } | |
284f4730 JB |
5639 | } |
5640 | ||
514354e9 | 5641 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5642 | |
cd21b839 JB |
5643 | /* Construct a switch frame event. */ |
5644 | static Lisp_Object | |
5645 | make_lispy_switch_frame (frame) | |
5646 | Lisp_Object frame; | |
5647 | { | |
5648 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5649 | } | |
0a7f1fc0 JB |
5650 | \f |
5651 | /* Manipulating modifiers. */ | |
284f4730 | 5652 | |
0a7f1fc0 | 5653 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5654 | |
0a7f1fc0 JB |
5655 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5656 | SYMBOL's name of the end of the modifiers; the string from this | |
5657 | position is the unmodified symbol name. | |
284f4730 | 5658 | |
0a7f1fc0 | 5659 | This doesn't use any caches. */ |
6da3dd3a | 5660 | |
0a7f1fc0 JB |
5661 | static int |
5662 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5663 | Lisp_Object symbol; |
0a7f1fc0 | 5664 | int *modifier_end; |
284f4730 | 5665 | { |
1b049b51 | 5666 | Lisp_Object name; |
284f4730 JB |
5667 | int i; |
5668 | int modifiers; | |
284f4730 | 5669 | |
b7826503 | 5670 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5671 | |
284f4730 | 5672 | modifiers = 0; |
1b049b51 | 5673 | name = SYMBOL_NAME (symbol); |
284f4730 | 5674 | |
1b049b51 | 5675 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5676 | { |
5677 | int this_mod_end = 0; | |
5678 | int this_mod = 0; | |
284f4730 | 5679 | |
6da3dd3a RS |
5680 | /* See if the name continues with a modifier word. |
5681 | Check that the word appears, but don't check what follows it. | |
5682 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5683 | |
1b049b51 | 5684 | switch (SREF (name, i)) |
6da3dd3a RS |
5685 | { |
5686 | #define SINGLE_LETTER_MOD(BIT) \ | |
5687 | (this_mod_end = i + 1, this_mod = BIT) | |
5688 | ||
6da3dd3a RS |
5689 | case 'A': |
5690 | SINGLE_LETTER_MOD (alt_modifier); | |
5691 | break; | |
284f4730 | 5692 | |
6da3dd3a RS |
5693 | case 'C': |
5694 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5695 | break; | |
284f4730 | 5696 | |
6da3dd3a RS |
5697 | case 'H': |
5698 | SINGLE_LETTER_MOD (hyper_modifier); | |
5699 | break; | |
5700 | ||
6da3dd3a RS |
5701 | case 'M': |
5702 | SINGLE_LETTER_MOD (meta_modifier); | |
5703 | break; | |
5704 | ||
6da3dd3a RS |
5705 | case 'S': |
5706 | SINGLE_LETTER_MOD (shift_modifier); | |
5707 | break; | |
5708 | ||
5709 | case 's': | |
6da3dd3a RS |
5710 | SINGLE_LETTER_MOD (super_modifier); |
5711 | break; | |
5712 | ||
0a7f1fc0 | 5713 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
5714 | } |
5715 | ||
5716 | /* If we found no modifier, stop looking for them. */ | |
5717 | if (this_mod_end == 0) | |
5718 | break; | |
5719 | ||
5720 | /* Check there is a dash after the modifier, so that it | |
5721 | really is a modifier. */ | |
1b049b51 KR |
5722 | if (this_mod_end >= SBYTES (name) |
5723 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
5724 | break; |
5725 | ||
5726 | /* This modifier is real; look for another. */ | |
5727 | modifiers |= this_mod; | |
5728 | i = this_mod_end + 1; | |
5729 | } | |
284f4730 | 5730 | |
0a7f1fc0 | 5731 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5732 | if (! (modifiers & (down_modifier | drag_modifier |
5733 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
5734 | && i + 7 == SBYTES (name) |
5735 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
5736 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
5737 | modifiers |= click_modifier; |
5738 | ||
5739 | if (modifier_end) | |
5740 | *modifier_end = i; | |
5741 | ||
5742 | return modifiers; | |
5743 | } | |
5744 | ||
0a7f1fc0 JB |
5745 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5746 | prepended to the string BASE[0..BASE_LEN-1]. | |
5747 | This doesn't use any caches. */ | |
5748 | static Lisp_Object | |
301738ed | 5749 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5750 | int modifiers; |
5751 | char *base; | |
301738ed | 5752 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5753 | { |
5754 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5755 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5756 | reference to it. */ | |
301738ed RS |
5757 | char *new_mods |
5758 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5759 | int mod_len; |
284f4730 | 5760 | |
284f4730 | 5761 | { |
0a7f1fc0 JB |
5762 | char *p = new_mods; |
5763 | ||
5764 | /* Only the event queue may use the `up' modifier; it should always | |
5765 | be turned into a click or drag event before presented to lisp code. */ | |
5766 | if (modifiers & up_modifier) | |
5767 | abort (); | |
5768 | ||
5769 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5770 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5771 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5772 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5773 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5774 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5775 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5776 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5777 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5778 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5779 | /* The click modifier is denoted by the absence of other modifiers. */ |
5780 | ||
5781 | *p = '\0'; | |
5782 | ||
5783 | mod_len = p - new_mods; | |
5784 | } | |
284f4730 | 5785 | |
0a7f1fc0 | 5786 | { |
9b8eb840 | 5787 | Lisp_Object new_name; |
df0f2ba1 | 5788 | |
301738ed RS |
5789 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5790 | mod_len + base_len_byte); | |
d5db4077 KR |
5791 | bcopy (new_mods, SDATA (new_name), mod_len); |
5792 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
5793 | |
5794 | return Fintern (new_name, Qnil); | |
5795 | } | |
5796 | } | |
5797 | ||
5798 | ||
0a7f1fc0 JB |
5799 | static char *modifier_names[] = |
5800 | { | |
fbcd35bd | 5801 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5802 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5803 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5804 | }; |
80645119 | 5805 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5806 | |
5807 | static Lisp_Object modifier_symbols; | |
5808 | ||
5809 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5810 | static Lisp_Object | |
5811 | lispy_modifier_list (modifiers) | |
5812 | int modifiers; | |
5813 | { | |
5814 | Lisp_Object modifier_list; | |
5815 | int i; | |
5816 | ||
5817 | modifier_list = Qnil; | |
80645119 | 5818 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5819 | if (modifiers & (1<<i)) |
80645119 JB |
5820 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5821 | modifier_list); | |
0a7f1fc0 JB |
5822 | |
5823 | return modifier_list; | |
5824 | } | |
5825 | ||
5826 | ||
5827 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5828 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5829 | MASK is the set of modifiers present in SYMBOL's name. | |
5830 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5831 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5832 | Qevent_symbol_elements property. */ | |
3d31316f | 5833 | |
1161d367 | 5834 | Lisp_Object |
0a7f1fc0 JB |
5835 | parse_modifiers (symbol) |
5836 | Lisp_Object symbol; | |
5837 | { | |
9b8eb840 | 5838 | Lisp_Object elements; |
0a7f1fc0 | 5839 | |
9b8eb840 | 5840 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5841 | if (CONSP (elements)) |
5842 | return elements; | |
5843 | else | |
5844 | { | |
5845 | int end; | |
ec0faad2 | 5846 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5847 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5848 | Lisp_Object mask; |
5849 | ||
d5db4077 KR |
5850 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
5851 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
5852 | Qnil); |
5853 | ||
c4aeb9d8 | 5854 | if (modifiers & ~VALMASK) |
734fef94 | 5855 | abort (); |
bb9e9bed | 5856 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5857 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5858 | ||
5859 | /* Cache the parsing results on SYMBOL. */ | |
5860 | Fput (symbol, Qevent_symbol_element_mask, | |
5861 | elements); | |
5862 | Fput (symbol, Qevent_symbol_elements, | |
5863 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5864 | ||
5865 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5866 | it would be nice to put that in unmodified's cache. | |
5867 | But we can't, since we're not sure that parse_modifiers is | |
5868 | canonical. */ | |
5869 | ||
5870 | return elements; | |
5871 | } | |
5872 | } | |
5873 | ||
5874 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5875 | BASE must be unmodified. | |
5876 | ||
5877 | This is like apply_modifiers_uncached, but uses BASE's | |
5878 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5879 | Qevent_symbol_elements properties, since it has that info anyway. |
5880 | ||
5881 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5882 | the modified symbol. */ | |
0a7f1fc0 JB |
5883 | static Lisp_Object |
5884 | apply_modifiers (modifiers, base) | |
5885 | int modifiers; | |
5886 | Lisp_Object base; | |
5887 | { | |
7b4aedb9 | 5888 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5889 | |
80645119 | 5890 | /* Mask out upper bits. We don't know where this value's been. */ |
c4aeb9d8 | 5891 | modifiers &= VALMASK; |
80645119 | 5892 | |
0a7f1fc0 | 5893 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5894 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5895 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5896 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5897 | |
5898 | if (CONSP (entry)) | |
7539e11f | 5899 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5900 | else |
5901 | { | |
df0f2ba1 | 5902 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 5903 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
5904 | SDATA (SYMBOL_NAME (base)), |
5905 | SCHARS (SYMBOL_NAME (base)), | |
5906 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
5907 | |
5908 | /* Add the new symbol to the base's cache. */ | |
5909 | entry = Fcons (index, new_symbol); | |
5910 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5911 | ||
5912 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5913 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5914 | Fput (new_symbol, Qevent_symbol_element_mask, |
5915 | Fcons (base, Fcons (index, Qnil))); | |
5916 | Fput (new_symbol, Qevent_symbol_elements, | |
5917 | Fcons (base, lispy_modifier_list (modifiers))); | |
5918 | } | |
0a7f1fc0 | 5919 | |
df0f2ba1 | 5920 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5921 | |
5922 | You'd think we could just set this once and for all when we | |
5923 | intern the symbol above, but reorder_modifiers may call us when | |
5924 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5925 | because it has a Qmodifier_cache property it must have its |
5926 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5927 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5928 | { | |
9b8eb840 | 5929 | Lisp_Object kind; |
7b4aedb9 | 5930 | |
9b8eb840 | 5931 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5932 | if (! NILP (kind)) |
5933 | Fput (new_symbol, Qevent_kind, kind); | |
5934 | } | |
5935 | ||
5936 | return new_symbol; | |
0a7f1fc0 JB |
5937 | } |
5938 | ||
5939 | ||
5940 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5941 | return a symbol with the modifiers placed in the canonical order. | |
5942 | Canonical order is alphabetical, except for down and drag, which | |
5943 | always come last. The 'click' modifier is never written out. | |
5944 | ||
5945 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5946 | and M-C-foo end up being equivalent in the keymap. */ | |
5947 | ||
5948 | Lisp_Object | |
5949 | reorder_modifiers (symbol) | |
5950 | Lisp_Object symbol; | |
5951 | { | |
5952 | /* It's hopefully okay to write the code this way, since everything | |
5953 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5954 | Lisp_Object parsed; |
0a7f1fc0 | 5955 | |
9b8eb840 | 5956 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5957 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5958 | XCAR (parsed)); | |
0a7f1fc0 JB |
5959 | } |
5960 | ||
5961 | ||
284f4730 JB |
5962 | /* For handling events, we often want to produce a symbol whose name |
5963 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5964 | to some base, like the name of a function key or mouse button. | |
5965 | modify_event_symbol produces symbols of this sort. | |
5966 | ||
5967 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5968 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5969 | in the table. | |
5970 | ||
8e1e4240 GM |
5971 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
5972 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 5973 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
5974 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
5975 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 5976 | |
284f4730 JB |
5977 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5978 | persist between calls to modify_event_symbol that it can use to | |
5979 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5980 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5981 | |
5982 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5983 | |
284f4730 JB |
5984 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5985 | whose prefixes should be applied to the symbol name. | |
5986 | ||
5987 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5988 | the returned symbol. |
88cb0656 JB |
5989 | |
5990 | The symbols we create are supposed to have an | |
eb8c3be9 | 5991 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5992 | in the symbol's name. */ |
5993 | ||
284f4730 | 5994 | static Lisp_Object |
8e1e4240 | 5995 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 5996 | name_table, symbol_table, table_size) |
284f4730 JB |
5997 | int symbol_num; |
5998 | unsigned modifiers; | |
5999 | Lisp_Object symbol_kind; | |
8e1e4240 | 6000 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6001 | char **name_table; |
6002 | Lisp_Object *symbol_table; | |
2c834fb3 | 6003 | unsigned int table_size; |
284f4730 | 6004 | { |
80e4aa30 RS |
6005 | Lisp_Object value; |
6006 | Lisp_Object symbol_int; | |
6007 | ||
2c834fb3 KH |
6008 | /* Get rid of the "vendor-specific" bit here. */ |
6009 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6010 | |
6011 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6012 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6013 | return Qnil; |
284f4730 | 6014 | |
80e4aa30 RS |
6015 | if (CONSP (*symbol_table)) |
6016 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6017 | ||
0a7f1fc0 | 6018 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6019 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6020 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6021 | we've never used that symbol before. */ | |
80e4aa30 | 6022 | else |
88cb0656 | 6023 | { |
80e4aa30 RS |
6024 | if (! VECTORP (*symbol_table) |
6025 | || XVECTOR (*symbol_table)->size != table_size) | |
6026 | { | |
6027 | Lisp_Object size; | |
0a7f1fc0 | 6028 | |
bb9e9bed | 6029 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6030 | *symbol_table = Fmake_vector (size, Qnil); |
6031 | } | |
284f4730 | 6032 | |
80e4aa30 RS |
6033 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6034 | } | |
284f4730 | 6035 | |
0a7f1fc0 | 6036 | /* Have we already used this symbol before? */ |
80e4aa30 | 6037 | if (NILP (value)) |
284f4730 | 6038 | { |
0a7f1fc0 | 6039 | /* No; let's create it. */ |
8e1e4240 GM |
6040 | if (CONSP (name_alist_or_stem)) |
6041 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6042 | else if (STRINGP (name_alist_or_stem)) | |
6043 | { | |
d5db4077 | 6044 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6045 | char *buf = (char *) alloca (len + 50); |
ed3230db DL |
6046 | if (sizeof (int) == sizeof (EMACS_INT)) |
6047 | sprintf (buf, "%s-%d", SDATA (name_alist_or_stem), | |
6048 | XINT (symbol_int) + 1); | |
6049 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6050 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), | |
6051 | XINT (symbol_int) + 1); | |
8e1e4240 GM |
6052 | value = intern (buf); |
6053 | } | |
2ff6714d | 6054 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6055 | value = intern (name_table[symbol_num]); |
b64b4075 | 6056 | |
e98a93eb | 6057 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6058 | if (NILP (value)) |
6059 | { | |
6060 | char *name = x_get_keysym_name (symbol_num); | |
6061 | if (name) | |
6062 | value = intern (name); | |
6063 | } | |
6064 | #endif | |
6065 | ||
b64b4075 | 6066 | if (NILP (value)) |
d1f50460 RS |
6067 | { |
6068 | char buf[20]; | |
6069 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6070 | value = intern (buf); |
d1f50460 | 6071 | } |
0a7f1fc0 | 6072 | |
80e4aa30 | 6073 | if (CONSP (*symbol_table)) |
4205cb08 | 6074 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6075 | else |
6076 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6077 | ||
df0f2ba1 | 6078 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6079 | builds the Qevent_symbol_elements property, which the user |
6080 | cares about. */ | |
80e4aa30 RS |
6081 | apply_modifiers (modifiers & click_modifier, value); |
6082 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6083 | } |
88cb0656 | 6084 | |
0a7f1fc0 | 6085 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6086 | return apply_modifiers (modifiers, value); |
284f4730 | 6087 | } |
6da3dd3a RS |
6088 | \f |
6089 | /* Convert a list that represents an event type, | |
6090 | such as (ctrl meta backspace), into the usual representation of that | |
6091 | event type as a number or a symbol. */ | |
6092 | ||
a1706c30 | 6093 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6094 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6095 | EVENT-DESC should contain one base event type (a character or symbol) | |
6096 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6097 | drag, down, double or triple). The base must be last. | |
6098 | The return value is an event type (a character or symbol) which | |
6099 | has the same base event type and all the specified modifiers. */) | |
6100 | (event_desc) | |
e57d8fd8 | 6101 | Lisp_Object event_desc; |
6da3dd3a RS |
6102 | { |
6103 | Lisp_Object base; | |
6104 | int modifiers = 0; | |
6105 | Lisp_Object rest; | |
6106 | ||
6107 | base = Qnil; | |
e57d8fd8 | 6108 | rest = event_desc; |
6da3dd3a RS |
6109 | while (CONSP (rest)) |
6110 | { | |
6111 | Lisp_Object elt; | |
6112 | int this = 0; | |
6113 | ||
7539e11f KR |
6114 | elt = XCAR (rest); |
6115 | rest = XCDR (rest); | |
6da3dd3a | 6116 | |
3d31316f | 6117 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6118 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6119 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6120 | |
6121 | if (this != 0) | |
6122 | modifiers |= this; | |
6123 | else if (!NILP (base)) | |
6124 | error ("Two bases given in one event"); | |
6125 | else | |
6126 | base = elt; | |
6127 | ||
6da3dd3a RS |
6128 | } |
6129 | ||
3d31316f | 6130 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6131 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6132 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6133 | |
6da3dd3a RS |
6134 | if (INTEGERP (base)) |
6135 | { | |
3d31316f RS |
6136 | /* Turn (shift a) into A. */ |
6137 | if ((modifiers & shift_modifier) != 0 | |
6138 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6139 | { | |
6140 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6141 | modifiers &= ~shift_modifier; | |
6142 | } | |
6143 | ||
6144 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6145 | if (modifiers & ctrl_modifier) |
3d31316f | 6146 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6147 | | make_ctrl_char (XINT (base))); |
6148 | else | |
6149 | return make_number (modifiers | XINT (base)); | |
6150 | } | |
6151 | else if (SYMBOLP (base)) | |
6152 | return apply_modifiers (modifiers, base); | |
6153 | else | |
8c907a56 GM |
6154 | { |
6155 | error ("Invalid base event"); | |
6156 | return Qnil; | |
6157 | } | |
6da3dd3a RS |
6158 | } |
6159 | ||
3d31316f RS |
6160 | /* Try to recognize SYMBOL as a modifier name. |
6161 | Return the modifier flag bit, or 0 if not recognized. */ | |
6162 | ||
6163 | static int | |
6164 | parse_solitary_modifier (symbol) | |
6165 | Lisp_Object symbol; | |
6166 | { | |
1b049b51 | 6167 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6168 | |
1b049b51 | 6169 | switch (SREF (name, 0)) |
3d31316f RS |
6170 | { |
6171 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6172 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6173 | return BIT; |
6174 | ||
6175 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6176 | if (LEN == SBYTES (name) \ |
6177 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6178 | return BIT; |
6179 | ||
6180 | case 'A': | |
6181 | SINGLE_LETTER_MOD (alt_modifier); | |
6182 | break; | |
6183 | ||
6184 | case 'a': | |
6185 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6186 | break; | |
6187 | ||
6188 | case 'C': | |
6189 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6190 | break; | |
6191 | ||
6192 | case 'c': | |
6193 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6194 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6195 | break; | |
6196 | ||
6197 | case 'H': | |
6198 | SINGLE_LETTER_MOD (hyper_modifier); | |
6199 | break; | |
6200 | ||
6201 | case 'h': | |
6202 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6203 | break; | |
6204 | ||
6205 | case 'M': | |
6206 | SINGLE_LETTER_MOD (meta_modifier); | |
6207 | break; | |
6208 | ||
6209 | case 'm': | |
6210 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6211 | break; | |
6212 | ||
6213 | case 'S': | |
6214 | SINGLE_LETTER_MOD (shift_modifier); | |
6215 | break; | |
6216 | ||
6217 | case 's': | |
6218 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6219 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6220 | SINGLE_LETTER_MOD (super_modifier); | |
6221 | break; | |
6222 | ||
6223 | case 'd': | |
6224 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6225 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6226 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6227 | break; | |
6228 | ||
6229 | case 't': | |
6230 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6231 | break; | |
6232 | ||
6233 | #undef SINGLE_LETTER_MOD | |
6234 | #undef MULTI_LETTER_MOD | |
6235 | } | |
6236 | ||
6237 | return 0; | |
6238 | } | |
6239 | ||
6da3dd3a RS |
6240 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6241 | Such a list is not valid as an event, | |
6242 | but it can be a Lucid-style event type list. */ | |
6243 | ||
6244 | int | |
6245 | lucid_event_type_list_p (object) | |
6246 | Lisp_Object object; | |
6247 | { | |
6248 | Lisp_Object tail; | |
6249 | ||
6250 | if (! CONSP (object)) | |
6251 | return 0; | |
902ae620 GM |
6252 | |
6253 | if (EQ (XCAR (object), Qhelp_echo) | |
6254 | || EQ (XCAR (object), Qvertical_line) | |
6255 | || EQ (XCAR (object), Qmode_line) | |
6256 | || EQ (XCAR (object), Qheader_line)) | |
6257 | return 0; | |
6da3dd3a | 6258 | |
7539e11f | 6259 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6260 | { |
6261 | Lisp_Object elt; | |
7539e11f | 6262 | elt = XCAR (tail); |
6da3dd3a RS |
6263 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6264 | return 0; | |
6265 | } | |
6266 | ||
6267 | return NILP (tail); | |
6268 | } | |
284f4730 | 6269 | \f |
284f4730 JB |
6270 | /* Store into *addr a value nonzero if terminal input chars are available. |
6271 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6272 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6273 | (In fact, this may actually read some input.) |
6274 | ||
20057d52 JD |
6275 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. |
6276 | If FILTER_EVENTS is nonzero, ignore internal events (FOCUS_IN_EVENT). */ | |
284f4730 JB |
6277 | |
6278 | static void | |
20057d52 | 6279 | get_filtered_input_pending (addr, do_timers_now, filter_events) |
284f4730 | 6280 | int *addr; |
d9d4c147 | 6281 | int do_timers_now; |
20057d52 | 6282 | int filter_events; |
284f4730 JB |
6283 | { |
6284 | /* First of all, have we already counted some input? */ | |
20057d52 JD |
6285 | *addr = (!NILP (Vquit_flag) |
6286 | || readable_filtered_events (do_timers_now, filter_events)); | |
284f4730 JB |
6287 | |
6288 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6289 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6290 | return; | |
6291 | ||
6292 | /* Try to read some input and see how much we get. */ | |
6293 | gobble_input (0); | |
20057d52 JD |
6294 | *addr = (!NILP (Vquit_flag) |
6295 | || readable_filtered_events (do_timers_now, filter_events)); | |
6296 | } | |
6297 | ||
6298 | /* Store into *addr a value nonzero if terminal input chars are available. | |
6299 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6300 | but works even if FIONREAD does not exist. | |
6301 | (In fact, this may actually read some input.) | |
6302 | ||
6303 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
6304 | ||
6305 | static void | |
6306 | get_input_pending (addr, do_timers_now) | |
6307 | int *addr; | |
6308 | int do_timers_now; | |
6309 | { | |
6310 | get_filtered_input_pending (addr, do_timers_now, 0); | |
284f4730 JB |
6311 | } |
6312 | ||
81931ba1 | 6313 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6314 | |
07a59269 | 6315 | void |
284f4730 JB |
6316 | gobble_input (expected) |
6317 | int expected; | |
6318 | { | |
6319 | #ifndef VMS | |
6320 | #ifdef SIGIO | |
6321 | if (interrupt_input) | |
6322 | { | |
32676c08 | 6323 | SIGMASKTYPE mask; |
4f8aaa74 | 6324 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6325 | read_avail_input (expected); |
e065a56e | 6326 | sigsetmask (mask); |
284f4730 JB |
6327 | } |
6328 | else | |
81931ba1 RS |
6329 | #ifdef POLL_FOR_INPUT |
6330 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6331 | { | |
6332 | SIGMASKTYPE mask; | |
4f8aaa74 | 6333 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6334 | read_avail_input (expected); |
6335 | sigsetmask (mask); | |
6336 | } | |
6337 | else | |
87485d6f | 6338 | #endif |
284f4730 JB |
6339 | #endif |
6340 | read_avail_input (expected); | |
6341 | #endif | |
6342 | } | |
a8015ab5 | 6343 | |
3b8f9651 | 6344 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6345 | so that read_key_sequence will notice the new current buffer. */ |
6346 | ||
07a59269 | 6347 | void |
a8015ab5 KH |
6348 | record_asynch_buffer_change () |
6349 | { | |
6350 | struct input_event event; | |
a30f0615 RS |
6351 | Lisp_Object tem; |
6352 | ||
3b8f9651 | 6353 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6354 | event.frame_or_window = Qnil; |
da8f7368 | 6355 | event.arg = Qnil; |
241ceaf7 | 6356 | |
f65e6f7d | 6357 | #ifdef subprocesses |
a30f0615 RS |
6358 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6359 | The purpose of the event is to make read_key_sequence look up the | |
6360 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6361 | and the event could cause trouble by messing up (input-pending-p). */ | |
6362 | tem = Fwaiting_for_user_input_p (); | |
6363 | if (NILP (tem)) | |
6364 | return; | |
f65e6f7d RS |
6365 | #else |
6366 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6367 | return; | |
6368 | #endif | |
a30f0615 | 6369 | |
241ceaf7 RS |
6370 | /* Make sure no interrupt happens while storing the event. */ |
6371 | #ifdef SIGIO | |
6372 | if (interrupt_input) | |
6373 | { | |
6374 | SIGMASKTYPE mask; | |
4f8aaa74 | 6375 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6376 | kbd_buffer_store_event (&event); |
6377 | sigsetmask (mask); | |
6378 | } | |
6379 | else | |
6380 | #endif | |
6381 | { | |
6382 | stop_polling (); | |
6383 | kbd_buffer_store_event (&event); | |
6384 | start_polling (); | |
6385 | } | |
a8015ab5 | 6386 | } |
284f4730 JB |
6387 | \f |
6388 | #ifndef VMS | |
6389 | ||
6390 | /* Read any terminal input already buffered up by the system | |
6391 | into the kbd_buffer, but do not wait. | |
6392 | ||
6393 | EXPECTED should be nonzero if the caller knows there is some input. | |
6394 | ||
6395 | Except on VMS, all input is read by this function. | |
6396 | If interrupt_input is nonzero, this function MUST be called | |
6397 | only when SIGIO is blocked. | |
6398 | ||
6399 | Returns the number of keyboard chars read, or -1 meaning | |
6400 | this is a bad time to try to read input. */ | |
6401 | ||
6402 | static int | |
6403 | read_avail_input (expected) | |
6404 | int expected; | |
6405 | { | |
6406 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6407 | register int i; | |
6408 | int nread; | |
6409 | ||
6410 | if (read_socket_hook) | |
6411 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6412 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6413 | else |
6414 | { | |
17270835 RS |
6415 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6416 | the kbd_buffer can really hold. That may prevent loss | |
6417 | of characters on some systems when input is stuffed at us. */ | |
6418 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6419 | int n_to_read; |
284f4730 | 6420 | |
58788063 | 6421 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6422 | #ifdef WINDOWSNT |
6423 | return 0; | |
6424 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6425 | #ifdef MSDOS |
58788063 RS |
6426 | n_to_read = dos_keysns (); |
6427 | if (n_to_read == 0) | |
6428 | return 0; | |
c3a2738c | 6429 | #else /* not MSDOS */ |
284f4730 JB |
6430 | #ifdef FIONREAD |
6431 | /* Find out how much input is available. */ | |
437f6112 | 6432 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6433 | /* Formerly simply reported no input, but that sometimes led to |
6434 | a failure of Emacs to terminate. | |
6435 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6436 | /* ??? Is it really right to send the signal just to this process |
6437 | rather than to the whole process group? | |
6438 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 6439 | kill (getpid (), SIGHUP); |
58788063 | 6440 | if (n_to_read == 0) |
284f4730 | 6441 | return 0; |
58788063 RS |
6442 | if (n_to_read > sizeof cbuf) |
6443 | n_to_read = sizeof cbuf; | |
284f4730 | 6444 | #else /* no FIONREAD */ |
0c04a67e | 6445 | #if defined (USG) || defined (DGUX) |
284f4730 | 6446 | /* Read some input if available, but don't wait. */ |
58788063 | 6447 | n_to_read = sizeof cbuf; |
437f6112 | 6448 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6449 | #else |
6450 | you lose; | |
6451 | #endif | |
6452 | #endif | |
80e4aa30 | 6453 | #endif /* not MSDOS */ |
bc536d84 | 6454 | #endif /* not WINDOWSNT */ |
284f4730 | 6455 | |
58788063 RS |
6456 | /* Now read; for one reason or another, this will not block. |
6457 | NREAD is set to the number of chars read. */ | |
9134775b | 6458 | do |
284f4730 | 6459 | { |
80e4aa30 | 6460 | #ifdef MSDOS |
0c04a67e | 6461 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6462 | nread = 1; |
6463 | #else | |
68c45bf0 | 6464 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6465 | #endif |
49854566 RS |
6466 | /* POSIX infers that processes which are not in the session leader's |
6467 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6468 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6469 | when the control tty is taken away. |
6470 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6471 | if (nread == -1 && errno == EIO) | |
6472 | kill (0, SIGHUP); | |
762f2b92 | 6473 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6474 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6475 | This looks incorrect, but it isn't, because _BSD causes | |
6476 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6477 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6478 | if (nread == 0) |
80e4aa30 | 6479 | kill (0, SIGHUP); |
284f4730 | 6480 | #endif |
9134775b | 6481 | } |
791587ee KH |
6482 | while ( |
6483 | /* We used to retry the read if it was interrupted. | |
6484 | But this does the wrong thing when O_NDELAY causes | |
6485 | an EAGAIN error. Does anybody know of a situation | |
6486 | where a retry is actually needed? */ | |
6487 | #if 0 | |
6488 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6489 | #ifdef EFAULT |
9134775b | 6490 | || errno == EFAULT |
80e4aa30 | 6491 | #endif |
284f4730 | 6492 | #ifdef EBADSLT |
9134775b | 6493 | || errno == EBADSLT |
284f4730 | 6494 | #endif |
791587ee KH |
6495 | ) |
6496 | #else | |
6497 | 0 | |
6498 | #endif | |
6499 | ); | |
284f4730 JB |
6500 | |
6501 | #ifndef FIONREAD | |
02c2c53f | 6502 | #if defined (USG) || defined (DGUX) |
437f6112 | 6503 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 6504 | #endif /* USG or DGUX */ |
284f4730 JB |
6505 | #endif /* no FIONREAD */ |
6506 | for (i = 0; i < nread; i++) | |
6507 | { | |
3b8f9651 | 6508 | buf[i].kind = ASCII_KEYSTROKE_EVENT; |
86e5706b | 6509 | buf[i].modifiers = 0; |
b04904fb | 6510 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6511 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6512 | if (meta_key != 2) |
6513 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6514 | |
6515 | buf[i].code = cbuf[i]; | |
788f89eb | 6516 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6517 | buf[i].arg = Qnil; |
284f4730 JB |
6518 | } |
6519 | } | |
6520 | ||
6521 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6522 | for (i = 0; i < nread; i++) | |
6523 | { | |
6524 | kbd_buffer_store_event (&buf[i]); | |
6525 | /* Don't look at input that follows a C-g too closely. | |
6526 | This reduces lossage due to autorepeat on C-g. */ | |
3b8f9651 | 6527 | if (buf[i].kind == ASCII_KEYSTROKE_EVENT |
9343ab07 | 6528 | && buf[i].code == quit_char) |
284f4730 JB |
6529 | break; |
6530 | } | |
6531 | ||
6532 | return nread; | |
6533 | } | |
6534 | #endif /* not VMS */ | |
6535 | \f | |
6536 | #ifdef SIGIO /* for entire page */ | |
6537 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6538 | ||
2ce30ea2 | 6539 | SIGTYPE |
284f4730 JB |
6540 | input_available_signal (signo) |
6541 | int signo; | |
6542 | { | |
6543 | /* Must preserve main program's value of errno. */ | |
6544 | int old_errno = errno; | |
6545 | #ifdef BSD4_1 | |
6546 | extern int select_alarmed; | |
6547 | #endif | |
6548 | ||
5970a8cb | 6549 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6550 | /* USG systems forget handlers when they are used; |
6551 | must reestablish each time */ | |
6552 | signal (signo, input_available_signal); | |
6553 | #endif /* USG */ | |
6554 | ||
6555 | #ifdef BSD4_1 | |
6556 | sigisheld (SIGIO); | |
6557 | #endif | |
6558 | ||
ffd56f97 JB |
6559 | if (input_available_clear_time) |
6560 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6561 | |
6562 | while (1) | |
6563 | { | |
6564 | int nread; | |
6565 | nread = read_avail_input (1); | |
6566 | /* -1 means it's not ok to read the input now. | |
6567 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6568 | 0 means there was no keyboard input available. */ | |
6569 | if (nread <= 0) | |
6570 | break; | |
6571 | ||
6572 | #ifdef BSD4_1 | |
6573 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6574 | #endif | |
6575 | } | |
6576 | ||
6577 | #ifdef BSD4_1 | |
6578 | sigfree (); | |
6579 | #endif | |
6580 | errno = old_errno; | |
6581 | } | |
6582 | #endif /* SIGIO */ | |
ad163903 JB |
6583 | |
6584 | /* Send ourselves a SIGIO. | |
6585 | ||
6586 | This function exists so that the UNBLOCK_INPUT macro in | |
6587 | blockinput.h can have some way to take care of input we put off | |
6588 | dealing with, without assuming that every file which uses | |
6589 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6590 | void | |
6591 | reinvoke_input_signal () | |
6592 | { | |
df0f2ba1 | 6593 | #ifdef SIGIO |
87dd9b9b | 6594 | kill (getpid (), SIGIO); |
ad163903 JB |
6595 | #endif |
6596 | } | |
6597 | ||
6598 | ||
284f4730 | 6599 | \f |
25126faa GM |
6600 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object)); |
6601 | static void menu_bar_one_keymap P_ ((Lisp_Object)); | |
b7c49376 RS |
6602 | |
6603 | /* These variables hold the vector under construction within | |
6604 | menu_bar_items and its subroutines, and the current index | |
6605 | for storing into that vector. */ | |
6606 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6607 | static int menu_bar_items_index; |
5ec75a55 | 6608 | |
b7c49376 RS |
6609 | /* Return a vector of menu items for a menu bar, appropriate |
6610 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6611 | KEY STRING MAPLIST. |
b7c49376 RS |
6612 | |
6613 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6614 | |
6615 | Lisp_Object | |
b7c49376 RS |
6616 | menu_bar_items (old) |
6617 | Lisp_Object old; | |
5ec75a55 RS |
6618 | { |
6619 | /* The number of keymaps we're scanning right now, and the number of | |
6620 | keymaps we have allocated space for. */ | |
6621 | int nmaps; | |
6622 | ||
6623 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6624 | in the current keymaps, or nil where it is not a prefix. */ | |
6625 | Lisp_Object *maps; | |
6626 | ||
aebfea68 | 6627 | Lisp_Object def, tail; |
5ec75a55 RS |
6628 | |
6629 | Lisp_Object result; | |
6630 | ||
6631 | int mapno; | |
47d319aa | 6632 | Lisp_Object oquit; |
5ec75a55 | 6633 | |
b7c49376 RS |
6634 | int i; |
6635 | ||
6636 | struct gcpro gcpro1; | |
6637 | ||
db60d856 JB |
6638 | /* In order to build the menus, we need to call the keymap |
6639 | accessors. They all call QUIT. But this function is called | |
6640 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6641 | quitting while building the menus. |
6642 | We do this instead of specbind because (1) errors will clear it anyway | |
6643 | and (2) this avoids risk of specpdl overflow. */ | |
6644 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6645 | Vinhibit_quit = Qt; |
db60d856 | 6646 | |
b7c49376 RS |
6647 | if (!NILP (old)) |
6648 | menu_bar_items_vector = old; | |
6649 | else | |
6650 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6651 | menu_bar_items_index = 0; | |
6652 | ||
6653 | GCPRO1 (menu_bar_items_vector); | |
6654 | ||
5ec75a55 RS |
6655 | /* Build our list of keymaps. |
6656 | If we recognize a function key and replace its escape sequence in | |
6657 | keybuf with its symbol, or if the sequence starts with a mouse | |
6658 | click and we need to switch buffers, we jump back here to rebuild | |
6659 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6660 | { |
5ec75a55 RS |
6661 | Lisp_Object *tmaps; |
6662 | ||
217258d5 | 6663 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6664 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6665 | { |
217258d5 KH |
6666 | /* Yes, use them (if non-nil) as well as the global map. */ |
6667 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6668 | nmaps = 0; | |
6669 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6670 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6671 | if (!NILP (Voverriding_local_map)) | |
6672 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6673 | } |
6674 | else | |
6675 | { | |
fd646341 KS |
6676 | /* No, so use major and minor mode keymaps and keymap property. |
6677 | Note that menu-bar bindings in the local-map and keymap | |
6678 | properties may not work reliable, as they are only | |
6679 | recognized when the menu-bar (or mode-line) is updated, | |
6680 | which does not normally happen after every command. */ | |
6681 | Lisp_Object tem; | |
6682 | int nminor; | |
6683 | nminor = current_minor_maps (NULL, &tmaps); | |
6684 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6685 | nmaps = 0; | |
6686 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6687 | maps[nmaps++] = tem; | |
6688 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6689 | nmaps += nminor; | |
6690 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6691 | } |
217258d5 | 6692 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6693 | } |
6694 | ||
6695 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6696 | ||
6697 | result = Qnil; | |
6698 | ||
e58aa385 | 6699 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6700 | if (!NILP (maps[mapno])) |
6701 | { | |
341a09cf SM |
6702 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6703 | 0, 1); | |
02067692 | 6704 | if (CONSP (def)) |
25126faa GM |
6705 | menu_bar_one_keymap (def); |
6706 | } | |
5ec75a55 | 6707 | |
b7c49376 RS |
6708 | /* Move to the end those items that should be at the end. */ |
6709 | ||
7539e11f | 6710 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6711 | { |
b7c49376 RS |
6712 | int i; |
6713 | int end = menu_bar_items_index; | |
6714 | ||
35b3402f | 6715 | for (i = 0; i < end; i += 4) |
7539e11f | 6716 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6717 | { |
35b3402f | 6718 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6719 | /* Move the item at index I to the end, |
6720 | shifting all the others forward. */ | |
6721 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6722 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6723 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6724 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6725 | if (end > i + 4) | |
6726 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6727 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6728 | (end - i - 4) * sizeof (Lisp_Object)); |
6729 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6730 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6731 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6732 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6733 | break; |
b7c49376 RS |
6734 | } |
6735 | } | |
9f9c0e27 | 6736 | |
0c9071cd | 6737 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6738 | i = menu_bar_items_index; |
35b3402f | 6739 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6740 | { |
6741 | Lisp_Object tem; | |
b7c49376 RS |
6742 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6743 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6744 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6745 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6746 | } |
b7c49376 RS |
6747 | /* Add this item. */ |
6748 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6749 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6750 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6751 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6752 | menu_bar_items_index = i; |
a73c5e29 | 6753 | |
47d319aa | 6754 | Vinhibit_quit = oquit; |
b7c49376 RS |
6755 | UNGCPRO; |
6756 | return menu_bar_items_vector; | |
5ec75a55 RS |
6757 | } |
6758 | \f | |
6759 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 6760 | in menu_bar_items_vector. */ |
5ec75a55 | 6761 | |
759860a6 RS |
6762 | static Lisp_Object menu_bar_one_keymap_changed_items; |
6763 | ||
b7c49376 RS |
6764 | static void |
6765 | menu_bar_one_keymap (keymap) | |
6766 | Lisp_Object keymap; | |
5ec75a55 | 6767 | { |
03cee6ae | 6768 | Lisp_Object tail, item; |
5ec75a55 | 6769 | |
759860a6 RS |
6770 | menu_bar_one_keymap_changed_items = Qnil; |
6771 | ||
5ec75a55 | 6772 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 6773 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 6774 | { |
7539e11f | 6775 | item = XCAR (tail); |
8c18cbfb | 6776 | if (CONSP (item)) |
7539e11f | 6777 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 6778 | else if (VECTORP (item)) |
5ec75a55 RS |
6779 | { |
6780 | /* Loop over the char values represented in the vector. */ | |
6781 | int len = XVECTOR (item)->size; | |
6782 | int c; | |
6783 | for (c = 0; c < len; c++) | |
6784 | { | |
6785 | Lisp_Object character; | |
bb9e9bed | 6786 | XSETFASTINT (character, c); |
e8886a1d | 6787 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
6788 | } |
6789 | } | |
6790 | } | |
5ec75a55 RS |
6791 | } |
6792 | ||
f5e09c8b RS |
6793 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6794 | If there's already an item for KEY, add this DEF to it. */ | |
6795 | ||
e8886a1d RS |
6796 | Lisp_Object item_properties; |
6797 | ||
b7c49376 | 6798 | static void |
e8886a1d RS |
6799 | menu_bar_item (key, item) |
6800 | Lisp_Object key, item; | |
5ec75a55 | 6801 | { |
e8886a1d | 6802 | struct gcpro gcpro1; |
b7c49376 | 6803 | int i; |
759860a6 | 6804 | Lisp_Object tem; |
5ec75a55 | 6805 | |
e8886a1d | 6806 | if (EQ (item, Qundefined)) |
e58aa385 | 6807 | { |
f5e09c8b | 6808 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6809 | discard any previously made menu bar item. */ |
b7c49376 | 6810 | |
35b3402f | 6811 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6812 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6813 | { | |
35b3402f RS |
6814 | if (menu_bar_items_index > i + 4) |
6815 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6816 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6817 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6818 | menu_bar_items_index -= 4; | |
b7c49376 | 6819 | } |
e58aa385 RS |
6820 | } |
6821 | ||
759860a6 RS |
6822 | /* If this keymap has already contributed to this KEY, |
6823 | don't contribute to it a second time. */ | |
6824 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6825 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6826 | return; |
6827 | ||
6828 | menu_bar_one_keymap_changed_items | |
6829 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6830 | ||
9cd2ced7 SM |
6831 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6832 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6833 | it still correctly hides any further menu item. */ | |
6834 | GCPRO1 (key); | |
6835 | i = parse_menu_item (item, 0, 1); | |
6836 | UNGCPRO; | |
6837 | if (!i) | |
6838 | return; | |
6839 | ||
e8886a1d RS |
6840 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6841 | ||
f5e09c8b | 6842 | /* Find any existing item for this KEY. */ |
35b3402f | 6843 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6844 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6845 | break; | |
6846 | ||
f5e09c8b | 6847 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6848 | if (i == menu_bar_items_index) |
6849 | { | |
6850 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6851 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6852 | { |
6853 | Lisp_Object tem; | |
b7c49376 RS |
6854 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6855 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6856 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6857 | menu_bar_items_vector = tem; | |
6858 | } | |
e8886a1d | 6859 | |
b7c49376 RS |
6860 | /* Add this item. */ |
6861 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6862 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6863 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6864 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6865 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6866 | menu_bar_items_index = i; |
6867 | } | |
e8886a1d | 6868 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6869 | else |
6870 | { | |
6871 | Lisp_Object old; | |
6872 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6873 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6874 | } |
5ec75a55 RS |
6875 | } |
6876 | \f | |
e8886a1d RS |
6877 | /* This is used as the handler when calling menu_item_eval_property. */ |
6878 | static Lisp_Object | |
6879 | menu_item_eval_property_1 (arg) | |
6880 | Lisp_Object arg; | |
6881 | { | |
6882 | /* If we got a quit from within the menu computation, | |
6883 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6884 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6885 | Fsignal (Qquit, Qnil); |
6886 | ||
6887 | return Qnil; | |
6888 | } | |
6889 | ||
6890 | /* Evaluate an expression and return the result (or nil if something | |
6891 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6892 | Lisp_Object |
e8886a1d RS |
6893 | menu_item_eval_property (sexpr) |
6894 | Lisp_Object sexpr; | |
6895 | { | |
aed13378 | 6896 | int count = SPECPDL_INDEX (); |
e8886a1d | 6897 | Lisp_Object val; |
44e553a3 | 6898 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6899 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6900 | menu_item_eval_property_1); | |
44e553a3 | 6901 | return unbind_to (count, val); |
e8886a1d RS |
6902 | } |
6903 | ||
6904 | /* This function parses a menu item and leaves the result in the | |
6905 | vector item_properties. | |
6906 | ITEM is a key binding, a possible menu item. | |
6907 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6908 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6909 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6910 | top level. |
fd3613d7 | 6911 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6912 | parse_menu_item returns true if the item is a menu item and false |
6913 | otherwise. */ | |
6914 | ||
6915 | int | |
6916 | parse_menu_item (item, notreal, inmenubar) | |
6917 | Lisp_Object item; | |
6918 | int notreal, inmenubar; | |
6919 | { | |
adc1d5c8 | 6920 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6921 | Lisp_Object cachelist; |
6922 | Lisp_Object filter; | |
6923 | Lisp_Object keyhint; | |
e8886a1d | 6924 | int i; |
74c1de23 RS |
6925 | int newcache = 0; |
6926 | ||
07ba902e RS |
6927 | cachelist = Qnil; |
6928 | filter = Qnil; | |
6929 | keyhint = Qnil; | |
6930 | ||
e8886a1d RS |
6931 | if (!CONSP (item)) |
6932 | return 0; | |
6933 | ||
e8886a1d RS |
6934 | /* Create item_properties vector if necessary. */ |
6935 | if (NILP (item_properties)) | |
6936 | item_properties | |
6937 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6938 | ||
6939 | /* Initialize optional entries. */ | |
6940 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
6941 | AREF (item_properties, i) = Qnil; |
6942 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
e8886a1d RS |
6943 | |
6944 | /* Save the item here to protect it from GC. */ | |
3626fb1a | 6945 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 6946 | |
7539e11f | 6947 | item_string = XCAR (item); |
e8886a1d RS |
6948 | |
6949 | start = item; | |
7539e11f | 6950 | item = XCDR (item); |
e8886a1d RS |
6951 | if (STRINGP (item_string)) |
6952 | { | |
6953 | /* Old format menu item. */ | |
3626fb1a | 6954 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6955 | |
6956 | /* Maybe help string. */ | |
7539e11f | 6957 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 6958 | { |
3626fb1a | 6959 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6960 | start = item; |
7539e11f | 6961 | item = XCDR (item); |
e8886a1d RS |
6962 | } |
6963 | ||
31f84d03 | 6964 | /* Maybe key binding cache. */ |
7539e11f KR |
6965 | if (CONSP (item) && CONSP (XCAR (item)) |
6966 | && (NILP (XCAR (XCAR (item))) | |
6967 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6968 | { |
7539e11f KR |
6969 | cachelist = XCAR (item); |
6970 | item = XCDR (item); | |
e8886a1d RS |
6971 | } |
6972 | ||
6973 | /* This is the real definition--the function to run. */ | |
3626fb1a | 6974 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
6975 | |
6976 | /* Get enable property, if any. */ | |
6977 | if (SYMBOLP (item)) | |
6978 | { | |
6979 | tem = Fget (item, Qmenu_enable); | |
6980 | if (!NILP (tem)) | |
3626fb1a | 6981 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6982 | } |
6983 | } | |
6984 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6985 | { | |
6986 | /* New format menu item. */ | |
3626fb1a | 6987 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 6988 | start = XCDR (item); |
e8886a1d RS |
6989 | if (CONSP (start)) |
6990 | { | |
6991 | /* We have a real binding. */ | |
3626fb1a | 6992 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 6993 | |
7539e11f | 6994 | item = XCDR (start); |
e8886a1d | 6995 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6996 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6997 | { |
7539e11f KR |
6998 | cachelist = XCAR (item); |
6999 | item = XCDR (item); | |
e8886a1d RS |
7000 | } |
7001 | ||
7002 | /* Parse properties. */ | |
7539e11f | 7003 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7004 | { |
7539e11f KR |
7005 | tem = XCAR (item); |
7006 | item = XCDR (item); | |
e8886a1d RS |
7007 | |
7008 | if (EQ (tem, QCenable)) | |
3626fb1a | 7009 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
7010 | else if (EQ (tem, QCvisible) && !notreal) |
7011 | { | |
7012 | /* If got a visible property and that evaluates to nil | |
7013 | then ignore this item. */ | |
7539e11f | 7014 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7015 | if (NILP (tem)) |
adc1d5c8 | 7016 | return 0; |
e8886a1d RS |
7017 | } |
7018 | else if (EQ (tem, QChelp)) | |
3626fb1a | 7019 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7020 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7021 | filter = item; |
7022 | else if (EQ (tem, QCkey_sequence)) | |
7023 | { | |
7539e11f | 7024 | tem = XCAR (item); |
74c1de23 RS |
7025 | if (NILP (cachelist) |
7026 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7027 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7028 | keyhint = item; | |
7029 | } | |
7030 | else if (EQ (tem, QCkeys)) | |
7031 | { | |
7539e11f | 7032 | tem = XCAR (item); |
03cee6ae | 7033 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 7034 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 7035 | } |
7539e11f | 7036 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7037 | { |
74c1de23 | 7038 | Lisp_Object type; |
7539e11f KR |
7039 | tem = XCAR (item); |
7040 | type = XCAR (tem); | |
e8886a1d RS |
7041 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7042 | { | |
3626fb1a | 7043 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 7044 | = XCDR (tem); |
3626fb1a | 7045 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
7046 | = type; |
7047 | } | |
7048 | } | |
7539e11f | 7049 | item = XCDR (item); |
e8886a1d RS |
7050 | } |
7051 | } | |
7052 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7053 | return 0; |
e8886a1d RS |
7054 | } |
7055 | else | |
adc1d5c8 | 7056 | return 0; /* not a menu item */ |
e8886a1d RS |
7057 | |
7058 | /* If item string is not a string, evaluate it to get string. | |
7059 | If we don't get a string, skip this item. */ | |
3626fb1a | 7060 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7061 | if (!(STRINGP (item_string) || notreal)) |
7062 | { | |
7063 | item_string = menu_item_eval_property (item_string); | |
7064 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7065 | return 0; |
3626fb1a | 7066 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
7067 | } |
7068 | ||
7069 | /* If got a filter apply it on definition. */ | |
3626fb1a | 7070 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7071 | if (!NILP (filter)) |
7072 | { | |
7539e11f | 7073 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7074 | list2 (Qquote, def))); |
7075 | ||
3626fb1a | 7076 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
7077 | } |
7078 | ||
e8886a1d | 7079 | /* Enable or disable selection of item. */ |
3626fb1a | 7080 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7081 | if (!EQ (tem, Qt)) |
7082 | { | |
7083 | if (notreal) | |
7084 | tem = Qt; | |
7085 | else | |
7086 | tem = menu_item_eval_property (tem); | |
7087 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7088 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7089 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7090 | } |
7091 | ||
7189cad8 SM |
7092 | /* If we got no definition, this item is just unselectable text which |
7093 | is OK in a submenu but not in the menubar. */ | |
7094 | if (NILP (def)) | |
7095 | return (inmenubar ? 0 : 1); | |
7096 | ||
e8886a1d | 7097 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7098 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7099 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7100 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7101 | if (CONSP (tem)) |
e8886a1d | 7102 | { |
3626fb1a GM |
7103 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7104 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7105 | return 1; |
7106 | } | |
3626fb1a | 7107 | |
9ac425d1 RS |
7108 | /* At the top level in the menu bar, do likewise for commands also. |
7109 | The menu bar does not display equivalent key bindings anyway. | |
7110 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7111 | if (inmenubar > 0) | |
7112 | return 1; | |
e8886a1d RS |
7113 | |
7114 | /* This is a command. See if there is an equivalent key binding. */ | |
7115 | if (NILP (cachelist)) | |
7116 | { | |
74c1de23 | 7117 | /* We have to create a cachelist. */ |
e8886a1d | 7118 | CHECK_IMPURE (start); |
f3fbd155 | 7119 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7120 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7121 | newcache = 1; |
3626fb1a | 7122 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7123 | if (!NILP (keyhint)) |
7124 | { | |
f3fbd155 | 7125 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7126 | newcache = 0; |
7127 | } | |
7128 | else if (STRINGP (tem)) | |
7129 | { | |
f3fbd155 KR |
7130 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7131 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7132 | } |
7133 | } | |
3626fb1a | 7134 | |
7539e11f | 7135 | tem = XCAR (cachelist); |
74c1de23 RS |
7136 | if (!EQ (tem, Qt)) |
7137 | { | |
7138 | int chkcache = 0; | |
7139 | Lisp_Object prefix; | |
7140 | ||
7141 | if (!NILP (tem)) | |
8b9940e6 | 7142 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7143 | |
3626fb1a | 7144 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7145 | if (CONSP (prefix)) |
7146 | { | |
7539e11f KR |
7147 | def = XCAR (prefix); |
7148 | prefix = XCDR (prefix); | |
74c1de23 | 7149 | } |
e8886a1d | 7150 | else |
3626fb1a | 7151 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7152 | |
3626fb1a GM |
7153 | if (!update_menu_bindings) |
7154 | chkcache = 0; | |
7155 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7156 | { |
7157 | if (newcache /* Always check first time. */ | |
7158 | /* Should we check everything when precomputing key | |
7159 | bindings? */ | |
74c1de23 RS |
7160 | /* If something had no key binding before, don't recheck it |
7161 | because that is too slow--except if we have a list of | |
7162 | rebound commands in Vdefine_key_rebound_commands, do | |
7163 | recheck any command that appears in that list. */ | |
7164 | || (CONSP (Vdefine_key_rebound_commands) | |
7165 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7166 | chkcache = 1; | |
7167 | } | |
7168 | /* We had a saved key. Is it still bound to the command? */ | |
7169 | else if (NILP (tem) | |
03cee6ae GM |
7170 | || (!EQ (tem, def) |
7171 | /* If the command is an alias for another | |
7172 | (such as lmenu.el set it up), check if the | |
7173 | original command matches the cached command. */ | |
7174 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7175 | chkcache = 1; /* Need to recompute key binding. */ |
7176 | ||
7177 | if (chkcache) | |
7178 | { | |
7179 | /* Recompute equivalent key binding. If the command is an alias | |
7180 | for another (such as lmenu.el set it up), see if the original | |
7181 | command name has equivalent keys. Otherwise look up the | |
7182 | specified command itself. We don't try both, because that | |
7183 | makes lmenu menus slow. */ | |
3626fb1a GM |
7184 | if (SYMBOLP (def) |
7185 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7186 | && ! NILP (Fget (def, Qmenu_alias))) |
7187 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7188 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7189 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7190 | if (NILP (tem)) |
7191 | { | |
f3fbd155 | 7192 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7193 | chkcache = 0; |
7194 | } | |
7195 | } | |
7539e11f | 7196 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7197 | { |
7539e11f | 7198 | tem = XCAR (cachelist); |
74c1de23 RS |
7199 | chkcache = 1; |
7200 | } | |
7201 | ||
7202 | newcache = chkcache; | |
7203 | if (chkcache) | |
7204 | { | |
7205 | tem = Fkey_description (tem); | |
7206 | if (CONSP (prefix)) | |
7207 | { | |
7539e11f KR |
7208 | if (STRINGP (XCAR (prefix))) |
7209 | tem = concat2 (XCAR (prefix), tem); | |
7210 | if (STRINGP (XCDR (prefix))) | |
7211 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7212 | } |
f3fbd155 | 7213 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7214 | } |
7215 | } | |
7216 | ||
7539e11f | 7217 | tem = XCDR (cachelist); |
74c1de23 | 7218 | if (newcache && !NILP (tem)) |
e8886a1d | 7219 | { |
74c1de23 | 7220 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7221 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7222 | } |
7223 | ||
7224 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7225 | if (notreal) | |
adc1d5c8 | 7226 | return 1; |
e8886a1d RS |
7227 | |
7228 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7229 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7230 | |
7231 | /* Include this when menu help is implemented. | |
7232 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7233 | if (!(NILP (tem) || STRINGP (tem))) | |
7234 | { | |
7235 | tem = menu_item_eval_property (tem); | |
7236 | if (!STRINGP (tem)) | |
7237 | tem = Qnil; | |
7238 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7239 | } | |
e8886a1d RS |
7240 | */ |
7241 | ||
7242 | /* Handle radio buttons or toggle boxes. */ | |
3626fb1a | 7243 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7244 | if (!NILP (tem)) |
3626fb1a | 7245 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7246 | = menu_item_eval_property (tem); |
7247 | ||
e8886a1d RS |
7248 | return 1; |
7249 | } | |
7ee32cda GM |
7250 | |
7251 | ||
7252 | \f | |
7253 | /*********************************************************************** | |
7254 | Tool-bars | |
7255 | ***********************************************************************/ | |
7256 | ||
9ea173e8 | 7257 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7258 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7259 | in the vector. */ |
7ee32cda | 7260 | |
9ea173e8 | 7261 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7262 | |
9ea173e8 GM |
7263 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7264 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7265 | |
9ea173e8 | 7266 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7267 | |
9ea173e8 | 7268 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7269 | |
9ea173e8 | 7270 | static int ntool_bar_items; |
7ee32cda | 7271 | |
9ea173e8 | 7272 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7273 | |
9ea173e8 | 7274 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7275 | Lisp_Object QCimage; |
7276 | ||
7277 | /* Function prototypes. */ | |
7278 | ||
9ea173e8 GM |
7279 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7280 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7281 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7282 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7283 | |
7284 | ||
9ea173e8 | 7285 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7286 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7287 | tool bar items found. */ |
7ee32cda GM |
7288 | |
7289 | Lisp_Object | |
9ea173e8 | 7290 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7291 | Lisp_Object reuse; |
7292 | int *nitems; | |
7293 | { | |
7294 | Lisp_Object *maps; | |
7295 | int nmaps, i; | |
7296 | Lisp_Object oquit; | |
7297 | Lisp_Object *tmaps; | |
7ee32cda GM |
7298 | |
7299 | *nitems = 0; | |
7300 | ||
7301 | /* In order to build the menus, we need to call the keymap | |
7302 | accessors. They all call QUIT. But this function is called | |
7303 | during redisplay, during which a quit is fatal. So inhibit | |
7304 | quitting while building the menus. We do this instead of | |
7305 | specbind because (1) errors will clear it anyway and (2) this | |
7306 | avoids risk of specpdl overflow. */ | |
7307 | oquit = Vinhibit_quit; | |
7308 | Vinhibit_quit = Qt; | |
7309 | ||
9ea173e8 GM |
7310 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7311 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7312 | |
7313 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7314 | to process. */ | |
7315 | ||
7316 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7317 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7318 | { | |
7319 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7320 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7321 | nmaps = 0; | |
7322 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7323 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7324 | if (!NILP (Voverriding_local_map)) | |
7325 | maps[nmaps++] = Voverriding_local_map; | |
7326 | } | |
7327 | else | |
7328 | { | |
fd646341 KS |
7329 | /* No, so use major and minor mode keymaps and keymap property. |
7330 | Note that tool-bar bindings in the local-map and keymap | |
7331 | properties may not work reliable, as they are only | |
7332 | recognized when the tool-bar (or mode-line) is updated, | |
7333 | which does not normally happen after every command. */ | |
7334 | Lisp_Object tem; | |
7335 | int nminor; | |
7336 | nminor = current_minor_maps (NULL, &tmaps); | |
7337 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7338 | nmaps = 0; | |
7339 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7340 | maps[nmaps++] = tem; | |
7341 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7342 | nmaps += nminor; | |
7343 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7344 | } |
7345 | ||
7346 | /* Add global keymap at the end. */ | |
7347 | maps[nmaps++] = current_global_map; | |
7348 | ||
7349 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7350 | key `tool-bar'. */ |
7ee32cda GM |
7351 | for (i = nmaps - 1; i >= 0; --i) |
7352 | if (!NILP (maps[i])) | |
7353 | { | |
7354 | Lisp_Object keymap; | |
db785038 | 7355 | |
341a09cf | 7356 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7357 | if (CONSP (keymap)) |
7ee32cda GM |
7358 | { |
7359 | Lisp_Object tail; | |
7360 | ||
7361 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 7362 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7363 | { |
7364 | Lisp_Object keydef = XCAR (tail); | |
7365 | if (CONSP (keydef)) | |
9ea173e8 | 7366 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7367 | } |
7368 | } | |
7369 | } | |
7370 | ||
7371 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7372 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7373 | return tool_bar_items_vector; | |
7ee32cda GM |
7374 | } |
7375 | ||
7376 | ||
7377 | /* Process the definition of KEY which is DEF. */ | |
7378 | ||
7379 | static void | |
9ea173e8 | 7380 | process_tool_bar_item (key, def) |
7ee32cda GM |
7381 | Lisp_Object key, def; |
7382 | { | |
7383 | int i; | |
7384 | extern Lisp_Object Qundefined; | |
7385 | struct gcpro gcpro1, gcpro2; | |
7386 | ||
9ea173e8 | 7387 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7388 | eval. */ |
7389 | GCPRO2 (key, def); | |
7390 | ||
7391 | if (EQ (def, Qundefined)) | |
7392 | { | |
7393 | /* If a map has an explicit `undefined' as definition, | |
7394 | discard any previously made item. */ | |
9ea173e8 | 7395 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7396 | { |
9ea173e8 | 7397 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 7398 | |
9ea173e8 | 7399 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7400 | { |
9ea173e8 GM |
7401 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7402 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7403 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7404 | * sizeof (Lisp_Object))); |
9ea173e8 | 7405 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7406 | break; |
7407 | } | |
7408 | } | |
7409 | } | |
9ea173e8 GM |
7410 | else if (parse_tool_bar_item (key, def)) |
7411 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7412 | more than one definition for the same key. */ |
9ea173e8 | 7413 | append_tool_bar_item (); |
7ee32cda GM |
7414 | |
7415 | UNGCPRO; | |
7416 | } | |
7417 | ||
7418 | ||
9ea173e8 GM |
7419 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7420 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7421 | invalid. |
7422 | ||
7423 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
7424 | ||
7425 | CAPTION is the caption of the item, If it's not a string, it is | |
7426 | evaluated to get a string. | |
7427 | ||
9ea173e8 | 7428 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7429 | as binding are currently ignored. |
7430 | ||
7431 | The following properties are recognized: | |
7432 | ||
7433 | - `:enable FORM'. | |
7434 | ||
9ea173e8 GM |
7435 | FORM is evaluated and specifies whether the tool bar item is |
7436 | enabled or disabled. | |
7ee32cda GM |
7437 | |
7438 | - `:visible FORM' | |
7439 | ||
9ea173e8 | 7440 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
7441 | |
7442 | - `:filter FUNCTION' | |
7443 | ||
7444 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7445 | result is stored as the new binding. | |
7446 | ||
7447 | - `:button (TYPE SELECTED)' | |
7448 | ||
7449 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7450 | and specifies whether the button is selected (pressed) or not. | |
7451 | ||
7452 | - `:image IMAGES' | |
7453 | ||
7454 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7455 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
7456 | |
7457 | - `:help HELP-STRING'. | |
7458 | ||
9ea173e8 | 7459 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7460 | |
7461 | static int | |
9ea173e8 | 7462 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7463 | Lisp_Object key, item; |
7464 | { | |
9ea173e8 GM |
7465 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7466 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7467 | |
7468 | Lisp_Object filter = Qnil; | |
7469 | Lisp_Object caption; | |
7ee32cda | 7470 | int i; |
7ee32cda | 7471 | |
8c907a56 GM |
7472 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7473 | Rule out items that aren't lists, don't start with | |
7474 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7475 | list. */ |
7476 | if (!CONSP (item) | |
7477 | || !EQ (XCAR (item), Qmenu_item) | |
7478 | || (item = XCDR (item), | |
7479 | !CONSP (item))) | |
7480 | return 0; | |
7481 | ||
9ea173e8 | 7482 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7483 | defaults. */ |
9ea173e8 | 7484 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7485 | { |
9ea173e8 | 7486 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7487 | PROP (i) = Qnil; |
7488 | } | |
7489 | else | |
9ea173e8 GM |
7490 | tool_bar_item_properties |
7491 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
7492 | |
7493 | /* Set defaults. */ | |
9ea173e8 GM |
7494 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7495 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
7496 | |
7497 | /* Get the caption of the item. If the caption is not a string, | |
7498 | evaluate it to get a string. If we don't get a string, skip this | |
7499 | item. */ | |
7500 | caption = XCAR (item); | |
7501 | if (!STRINGP (caption)) | |
7502 | { | |
7503 | caption = menu_item_eval_property (caption); | |
7504 | if (!STRINGP (caption)) | |
7505 | return 0; | |
7506 | } | |
9ea173e8 | 7507 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7508 | |
7509 | /* Give up if rest following the caption is not a list. */ | |
7510 | item = XCDR (item); | |
7511 | if (!CONSP (item)) | |
7512 | return 0; | |
7513 | ||
7514 | /* Store the binding. */ | |
9ea173e8 | 7515 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7516 | item = XCDR (item); |
7517 | ||
8c907a56 GM |
7518 | /* Ignore cached key binding, if any. */ |
7519 | if (CONSP (item) && CONSP (XCAR (item))) | |
7520 | item = XCDR (item); | |
7521 | ||
7ee32cda GM |
7522 | /* Process the rest of the properties. */ |
7523 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7524 | { | |
7525 | Lisp_Object key, value; | |
7526 | ||
7527 | key = XCAR (item); | |
7528 | value = XCAR (XCDR (item)); | |
7529 | ||
7530 | if (EQ (key, QCenable)) | |
7531 | /* `:enable FORM'. */ | |
9ea173e8 | 7532 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7533 | else if (EQ (key, QCvisible)) |
7534 | { | |
7535 | /* `:visible FORM'. If got a visible property and that | |
7536 | evaluates to nil then ignore this item. */ | |
7537 | if (NILP (menu_item_eval_property (value))) | |
7538 | return 0; | |
7539 | } | |
7540 | else if (EQ (key, QChelp)) | |
7541 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7542 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7543 | else if (EQ (key, QCfilter)) |
7544 | /* ':filter FORM'. */ | |
7545 | filter = value; | |
7546 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7547 | { | |
7548 | /* `:button (TYPE . SELECTED)'. */ | |
7549 | Lisp_Object type, selected; | |
7550 | ||
7551 | type = XCAR (value); | |
7552 | selected = XCDR (value); | |
7553 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7554 | { | |
9ea173e8 GM |
7555 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7556 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7557 | } |
7558 | } | |
7559 | else if (EQ (key, QCimage) | |
7560 | && (CONSP (value) | |
7561 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7562 | /* Value is either a single image specification or a vector | |
27fd22dc | 7563 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7564 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7565 | } |
7566 | ||
7567 | /* If got a filter apply it on binding. */ | |
7568 | if (!NILP (filter)) | |
9ea173e8 | 7569 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7570 | = menu_item_eval_property (list2 (filter, |
7571 | list2 (Qquote, | |
9ea173e8 | 7572 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7573 | |
7574 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7575 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7576 | return 0; |
7577 | ||
7578 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7579 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7580 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7581 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
7582 | |
7583 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
7584 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7585 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7586 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7587 | |
7588 | return 1; | |
7589 | ||
7590 | #undef PROP | |
7591 | } | |
7592 | ||
7593 | ||
9ea173e8 GM |
7594 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7595 | that can be reused. */ | |
7ee32cda GM |
7596 | |
7597 | static void | |
9ea173e8 | 7598 | init_tool_bar_items (reuse) |
7ee32cda GM |
7599 | Lisp_Object reuse; |
7600 | { | |
7601 | if (VECTORP (reuse)) | |
9ea173e8 | 7602 | tool_bar_items_vector = reuse; |
7ee32cda | 7603 | else |
9ea173e8 GM |
7604 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7605 | ntool_bar_items = 0; | |
7ee32cda GM |
7606 | } |
7607 | ||
7608 | ||
9ea173e8 GM |
7609 | /* Append parsed tool bar item properties from |
7610 | tool_bar_item_properties */ | |
7ee32cda GM |
7611 | |
7612 | static void | |
9ea173e8 | 7613 | append_tool_bar_item () |
7ee32cda GM |
7614 | { |
7615 | Lisp_Object *to, *from; | |
7616 | ||
9ea173e8 GM |
7617 | /* Enlarge tool_bar_items_vector if necessary. */ |
7618 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7619 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7620 | { |
7621 | Lisp_Object new_vector; | |
9ea173e8 | 7622 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7623 | |
7624 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7625 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7626 | XVECTOR (new_vector)->contents, |
7627 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7628 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7629 | } |
7630 | ||
9ea173e8 GM |
7631 | /* Append entries from tool_bar_item_properties to the end of |
7632 | tool_bar_items_vector. */ | |
7633 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7634 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7635 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7636 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7637 | } |
7638 | ||
7639 | ||
7640 | ||
7641 | ||
e8886a1d | 7642 | \f |
dcc408a0 RS |
7643 | /* Read a character using menus based on maps in the array MAPS. |
7644 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7645 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7646 | |
7647 | PREV_EVENT is the previous input event, or nil if we are reading | |
7648 | the first event of a key sequence. | |
7649 | ||
83d68044 | 7650 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7651 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7652 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7653 | |
7654 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7655 | and the strings associated with various map elements. |
8150596a RS |
7656 | |
7657 | This can be done with X menus or with menus put in the minibuf. | |
7658 | These are done in different ways, depending on how the input will be read. | |
7659 | Menus using X are done after auto-saving in read-char, getting the input | |
7660 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7661 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7662 | |
7617111f | 7663 | static Lisp_Object |
8150596a | 7664 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7665 | int nmaps; |
7666 | Lisp_Object *maps; | |
7667 | Lisp_Object prev_event; | |
7668 | int *used_mouse_menu; | |
284f4730 | 7669 | { |
7d6de002 RS |
7670 | int mapno; |
7671 | register Lisp_Object name; | |
7d6de002 | 7672 | |
6569cc8d JB |
7673 | if (used_mouse_menu) |
7674 | *used_mouse_menu = 0; | |
284f4730 JB |
7675 | |
7676 | /* Use local over global Menu maps */ | |
7677 | ||
7d6de002 RS |
7678 | if (! menu_prompting) |
7679 | return Qnil; | |
7680 | ||
03361bcc RS |
7681 | /* Optionally disregard all but the global map. */ |
7682 | if (inhibit_local_menu_bar_menus) | |
7683 | { | |
7684 | maps += (nmaps - 1); | |
7685 | nmaps = 1; | |
7686 | } | |
7687 | ||
7d6de002 RS |
7688 | /* Get the menu name from the first map that has one (a prompt string). */ |
7689 | for (mapno = 0; mapno < nmaps; mapno++) | |
7690 | { | |
bdb7aa47 | 7691 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7692 | if (!NILP (name)) |
7693 | break; | |
7694 | } | |
284f4730 | 7695 | |
7d6de002 | 7696 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 7697 | if (!STRINGP (name)) |
7d6de002 RS |
7698 | return Qnil; |
7699 | ||
1f5b1641 | 7700 | #ifdef HAVE_MENUS |
7d6de002 RS |
7701 | /* If we got to this point via a mouse click, |
7702 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7703 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7704 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7705 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7706 | { |
7707 | /* Display the menu and get the selection. */ | |
7708 | Lisp_Object *realmaps | |
7709 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7710 | Lisp_Object value; | |
7711 | int nmaps1 = 0; | |
7712 | ||
7713 | /* Use the maps that are not nil. */ | |
7714 | for (mapno = 0; mapno < nmaps; mapno++) | |
7715 | if (!NILP (maps[mapno])) | |
7716 | realmaps[nmaps1++] = maps[mapno]; | |
7717 | ||
7718 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7719 | if (CONSP (value)) |
7720 | { | |
68f297c5 RS |
7721 | Lisp_Object tem; |
7722 | ||
7539e11f | 7723 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7724 | |
68f297c5 RS |
7725 | /* If we got multiple events, unread all but |
7726 | the first. | |
7727 | There is no way to prevent those unread events | |
7728 | from showing up later in last_nonmenu_event. | |
7729 | So turn symbol and integer events into lists, | |
7730 | to indicate that they came from a mouse menu, | |
7731 | so that when present in last_nonmenu_event | |
7732 | they won't confuse things. */ | |
f4e05d97 | 7733 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7734 | { |
7539e11f KR |
7735 | record_menu_key (XCAR (tem)); |
7736 | if (SYMBOLP (XCAR (tem)) | |
7737 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 7738 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 7739 | } |
68f297c5 | 7740 | |
663258f2 JB |
7741 | /* If we got more than one event, put all but the first |
7742 | onto this list to be read later. | |
7743 | Return just the first event now. */ | |
24597608 | 7744 | Vunread_command_events |
7539e11f KR |
7745 | = nconc2 (XCDR (value), Vunread_command_events); |
7746 | value = XCAR (value); | |
663258f2 | 7747 | } |
1c90c381 | 7748 | else if (NILP (value)) |
dcc408a0 | 7749 | value = Qt; |
6569cc8d JB |
7750 | if (used_mouse_menu) |
7751 | *used_mouse_menu = 1; | |
7d6de002 RS |
7752 | return value; |
7753 | } | |
1f5b1641 | 7754 | #endif /* HAVE_MENUS */ |
8150596a RS |
7755 | return Qnil ; |
7756 | } | |
7757 | ||
af2b7cc9 KS |
7758 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7759 | We make this bigger when necessary, and never free it. */ | |
7760 | static char *read_char_minibuf_menu_text; | |
7761 | /* Size of that buffer. */ | |
7762 | static int read_char_minibuf_menu_width; | |
7763 | ||
8150596a | 7764 | static Lisp_Object |
24597608 | 7765 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7766 | int commandflag ; |
7767 | int nmaps; | |
7768 | Lisp_Object *maps; | |
7769 | { | |
7770 | int mapno; | |
7771 | register Lisp_Object name; | |
af2b7cc9 KS |
7772 | int nlength; |
7773 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; | |
8150596a | 7774 | int idx = -1; |
af2b7cc9 | 7775 | int nobindings = 1; |
8150596a | 7776 | Lisp_Object rest, vector; |
af2b7cc9 | 7777 | char *menu; |
8150596a | 7778 | |
8c907a56 | 7779 | vector = Qnil; |
7189cad8 | 7780 | name = Qnil; |
8c907a56 | 7781 | |
8150596a RS |
7782 | if (! menu_prompting) |
7783 | return Qnil; | |
7784 | ||
af2b7cc9 KS |
7785 | /* Make sure we have a big enough buffer for the menu text. */ |
7786 | if (read_char_minibuf_menu_text == 0) | |
7787 | { | |
7788 | read_char_minibuf_menu_width = width + 4; | |
7789 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7790 | } | |
7791 | else if (width + 4 > read_char_minibuf_menu_width) | |
7792 | { | |
7793 | read_char_minibuf_menu_width = width + 4; | |
7794 | read_char_minibuf_menu_text | |
7795 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7796 | } | |
7797 | menu = read_char_minibuf_menu_text; | |
7798 | ||
8150596a RS |
7799 | /* Get the menu name from the first map that has one (a prompt string). */ |
7800 | for (mapno = 0; mapno < nmaps; mapno++) | |
7801 | { | |
bdb7aa47 | 7802 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
7803 | if (!NILP (name)) |
7804 | break; | |
7805 | } | |
7806 | ||
7807 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 7808 | if (!STRINGP (name)) |
8150596a | 7809 | return Qnil; |
284f4730 | 7810 | |
af2b7cc9 | 7811 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
7812 | strcpy (menu, SDATA (name)); |
7813 | nlength = SBYTES (name); | |
af2b7cc9 KS |
7814 | menu[nlength++] = ':'; |
7815 | menu[nlength++] = ' '; | |
7816 | menu[nlength] = 0; | |
7817 | ||
7d6de002 RS |
7818 | /* Start prompting at start of first map. */ |
7819 | mapno = 0; | |
7820 | rest = maps[mapno]; | |
284f4730 | 7821 | |
af2b7cc9 KS |
7822 | /* Present the documented bindings, a line at a time. */ |
7823 | while (1) | |
284f4730 | 7824 | { |
af2b7cc9 KS |
7825 | int notfirst = 0; |
7826 | int i = nlength; | |
7827 | Lisp_Object obj; | |
7828 | int ch; | |
7829 | Lisp_Object orig_defn_macro; | |
284f4730 | 7830 | |
af2b7cc9 KS |
7831 | /* Loop over elements of map. */ |
7832 | while (i < width) | |
284f4730 | 7833 | { |
af2b7cc9 | 7834 | Lisp_Object elt; |
284f4730 | 7835 | |
af2b7cc9 KS |
7836 | /* If reached end of map, start at beginning of next map. */ |
7837 | if (NILP (rest)) | |
7838 | { | |
7839 | mapno++; | |
7840 | /* At end of last map, wrap around to first map if just starting, | |
7841 | or end this line if already have something on it. */ | |
7842 | if (mapno == nmaps) | |
7843 | { | |
7844 | mapno = 0; | |
7845 | if (notfirst || nobindings) break; | |
7846 | } | |
7847 | rest = maps[mapno]; | |
7848 | } | |
7d6de002 | 7849 | |
af2b7cc9 KS |
7850 | /* Look at the next element of the map. */ |
7851 | if (idx >= 0) | |
7852 | elt = XVECTOR (vector)->contents[idx]; | |
7853 | else | |
7854 | elt = Fcar_safe (rest); | |
7d6de002 | 7855 | |
af2b7cc9 | 7856 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7857 | { |
af2b7cc9 KS |
7858 | /* If we found a dense table in the keymap, |
7859 | advanced past it, but start scanning its contents. */ | |
7860 | rest = Fcdr_safe (rest); | |
7861 | vector = elt; | |
7862 | idx = 0; | |
284f4730 | 7863 | } |
7d6de002 RS |
7864 | else |
7865 | { | |
af2b7cc9 KS |
7866 | /* An ordinary element. */ |
7867 | Lisp_Object event, tem; | |
7d6de002 | 7868 | |
af2b7cc9 KS |
7869 | if (idx < 0) |
7870 | { | |
7871 | event = Fcar_safe (elt); /* alist */ | |
7872 | elt = Fcdr_safe (elt); | |
7873 | } | |
7874 | else | |
7875 | { | |
7876 | XSETINT (event, idx); /* vector */ | |
7877 | } | |
284f4730 | 7878 | |
af2b7cc9 KS |
7879 | /* Ignore the element if it has no prompt string. */ |
7880 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
7881 | { | |
7882 | /* 1 if the char to type matches the string. */ | |
7883 | int char_matches; | |
7884 | Lisp_Object upcased_event, downcased_event; | |
7885 | Lisp_Object desc = Qnil; | |
7886 | Lisp_Object s | |
7887 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7888 | ||
7889 | upcased_event = Fupcase (event); | |
7890 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
7891 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
7892 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
7893 | if (! char_matches) |
7894 | desc = Fsingle_key_description (event, Qnil); | |
7895 | ||
7896 | #if 0 /* It is redundant to list the equivalent key bindings because | |
7897 | the prefix is what the user has already typed. */ | |
7898 | tem | |
7899 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7900 | if (!NILP (tem)) | |
7901 | /* Insert equivalent keybinding. */ | |
7902 | s = concat2 (s, tem); | |
7903 | #endif | |
7904 | tem | |
7905 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7906 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7907 | { | |
7908 | /* Insert button prefix. */ | |
7909 | Lisp_Object selected | |
7910 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7911 | if (EQ (tem, QCradio)) | |
7912 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7913 | else | |
7914 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7915 | s = concat2 (tem, s); | |
7916 | } | |
7917 | ||
7918 | ||
7919 | /* If we have room for the prompt string, add it to this line. | |
7920 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
7921 | if ((SCHARS (s) + i + 2 |
7922 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
7923 | < width |
7924 | || !notfirst) | |
7925 | { | |
7926 | int thiswidth; | |
7927 | ||
7928 | /* Punctuate between strings. */ | |
7929 | if (notfirst) | |
7930 | { | |
7931 | strcpy (menu + i, ", "); | |
7932 | i += 2; | |
7933 | } | |
7934 | notfirst = 1; | |
7935 | nobindings = 0 ; | |
7936 | ||
7937 | /* If the char to type doesn't match the string's | |
7938 | first char, explicitly show what char to type. */ | |
7939 | if (! char_matches) | |
7940 | { | |
7941 | /* Add as much of string as fits. */ | |
d5db4077 | 7942 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
7943 | if (thiswidth + i > width) |
7944 | thiswidth = width - i; | |
d5db4077 | 7945 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
7946 | i += thiswidth; |
7947 | strcpy (menu + i, " = "); | |
7948 | i += 3; | |
7949 | } | |
7950 | ||
7951 | /* Add as much of string as fits. */ | |
d5db4077 | 7952 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
7953 | if (thiswidth + i > width) |
7954 | thiswidth = width - i; | |
d5db4077 | 7955 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
7956 | i += thiswidth; |
7957 | menu[i] = 0; | |
7958 | } | |
7959 | else | |
7960 | { | |
7961 | /* If this element does not fit, end the line now, | |
7962 | and save the element for the next line. */ | |
7963 | strcpy (menu + i, "..."); | |
7964 | break; | |
7965 | } | |
7966 | } | |
7967 | ||
7968 | /* Move past this element. */ | |
7969 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
7970 | /* Handle reaching end of dense table. */ | |
7971 | idx = -1; | |
7972 | if (idx >= 0) | |
7973 | idx++; | |
7974 | else | |
7975 | rest = Fcdr_safe (rest); | |
7976 | } | |
325309f5 | 7977 | } |
8150596a | 7978 | |
af2b7cc9 KS |
7979 | /* Prompt with that and read response. */ |
7980 | message2_nolog (menu, strlen (menu), | |
7981 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 | 7982 | |
af2b7cc9 KS |
7983 | /* Make believe its not a keyboard macro in case the help char |
7984 | is pressed. Help characters are not recorded because menu prompting | |
7985 | is not used on replay. | |
7986 | */ | |
7987 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
7988 | current_kboard->defining_kbd_macro = Qnil; | |
7989 | do | |
7990 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
7991 | while (BUFFERP (obj)); | |
7992 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 7993 | |
af2b7cc9 KS |
7994 | if (!INTEGERP (obj)) |
7995 | return obj; | |
7996 | else | |
7997 | ch = XINT (obj); | |
7998 | ||
7999 | if (! EQ (obj, menu_prompt_more_char) | |
8000 | && (!INTEGERP (menu_prompt_more_char) | |
8001 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8002 | { | |
8003 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8004 | store_kbd_macro_char (obj); | |
8005 | return obj; | |
8006 | } | |
8007 | /* Help char - go round again */ | |
8008 | } | |
284f4730 | 8009 | } |
284f4730 JB |
8010 | \f |
8011 | /* Reading key sequences. */ | |
8012 | ||
8013 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8014 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8015 | keymap, or nil otherwise. Return the index of the first keymap in | |
8016 | which KEY has any binding, or NMAPS if no map has a binding. | |
8017 | ||
8018 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8019 | followed by the corresponding non-meta character. Keymaps in | |
8020 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8021 | NEXT. | |
8022 | ||
88cb0656 JB |
8023 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8024 | unmodified. | |
8025 | ||
569871d2 | 8026 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8027 | |
8028 | static int | |
4e50f26a | 8029 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8030 | Lisp_Object key; |
8031 | Lisp_Object *current, *defs, *next; | |
8032 | int nmaps; | |
8033 | { | |
8034 | int i, first_binding; | |
569871d2 | 8035 | int did_meta = 0; |
284f4730 | 8036 | |
284f4730 JB |
8037 | first_binding = nmaps; |
8038 | for (i = nmaps - 1; i >= 0; i--) | |
8039 | { | |
8040 | if (! NILP (current[i])) | |
8041 | { | |
569871d2 RS |
8042 | Lisp_Object map; |
8043 | if (did_meta) | |
8044 | map = defs[i]; | |
8045 | else | |
8046 | map = current[i]; | |
8047 | ||
db785038 | 8048 | defs[i] = access_keymap (map, key, 1, 0, 1); |
284f4730 JB |
8049 | if (! NILP (defs[i])) |
8050 | first_binding = i; | |
8051 | } | |
8052 | else | |
8053 | defs[i] = Qnil; | |
8054 | } | |
8055 | ||
284f4730 | 8056 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8057 | if (first_binding < nmaps) |
8058 | for (i = 0; i < nmaps; i++) | |
02067692 | 8059 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8060 | |
8061 | return first_binding; | |
8062 | } | |
8063 | ||
a7f26f28 SM |
8064 | /* Structure used to keep track of partial application of key remapping |
8065 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8066 | typedef struct keyremap | |
8067 | { | |
8068 | Lisp_Object map; | |
8069 | int start, end; | |
8070 | } keyremap; | |
8071 | ||
8072 | ||
df0f2ba1 | 8073 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8074 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8075 | Prompt with PROMPT. | |
284f4730 | 8076 | Return the length of the key sequence stored. |
dcc408a0 | 8077 | Return -1 if the user rejected a command menu. |
284f4730 | 8078 | |
f4255cd1 JB |
8079 | Echo starting immediately unless `prompt' is 0. |
8080 | ||
8081 | Where a key sequence ends depends on the currently active keymaps. | |
8082 | These include any minor mode keymaps active in the current buffer, | |
8083 | the current buffer's local map, and the global map. | |
8084 | ||
8085 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8086 | to see if some trailing subsequence might be the beginning of a | |
8087 | function key's sequence. If so, we try to read the whole function | |
8088 | key, and substitute its symbolic name into the key sequence. | |
8089 | ||
fbcd35bd JB |
8090 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8091 | `double-' events into similar click events, if that would make them | |
8092 | bound. We try to turn `triple-' events first into `double-' events, | |
8093 | then into clicks. | |
f4255cd1 JB |
8094 | |
8095 | If we get a mouse click in a mode line, vertical divider, or other | |
8096 | non-text area, we treat the click as if it were prefixed by the | |
8097 | symbol denoting that area - `mode-line', `vertical-line', or | |
8098 | whatever. | |
8099 | ||
8100 | If the sequence starts with a mouse click, we read the key sequence | |
8101 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8102 | |
f4255cd1 JB |
8103 | If the user switches frames in the midst of a key sequence, we put |
8104 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8105 | read_char will return it. |
8106 | ||
8107 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8108 | from the selected window's buffer. */ | |
48e416d4 | 8109 | |
284f4730 | 8110 | static int |
ce98e608 | 8111 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8112 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8113 | Lisp_Object *keybuf; |
8114 | int bufsize; | |
84d91fda | 8115 | Lisp_Object prompt; |
309b0fc8 | 8116 | int dont_downcase_last; |
ce98e608 | 8117 | int can_return_switch_frame; |
f571ae0d | 8118 | int fix_current_buffer; |
284f4730 | 8119 | { |
db14cfc5 | 8120 | volatile Lisp_Object from_string; |
aed13378 | 8121 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8122 | |
284f4730 | 8123 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8124 | volatile int t; |
284f4730 | 8125 | |
284f4730 JB |
8126 | /* The length of the echo buffer when we started reading, and |
8127 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8128 | volatile int echo_start; |
8129 | volatile int keys_start; | |
284f4730 JB |
8130 | |
8131 | /* The number of keymaps we're scanning right now, and the number of | |
8132 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8133 | volatile int nmaps; |
8134 | volatile int nmaps_allocated = 0; | |
284f4730 | 8135 | |
284f4730 JB |
8136 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8137 | the current keymaps. */ | |
8c907a56 | 8138 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8139 | |
f4255cd1 JB |
8140 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8141 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8142 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8143 | |
e0dff5f6 | 8144 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8145 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8146 | |
30690496 DL |
8147 | /* The map from the `keymap' property to start out with at start of |
8148 | key sequence. */ | |
8c907a56 | 8149 | volatile Lisp_Object orig_keymap; |
30690496 | 8150 | |
e0dff5f6 RS |
8151 | /* 1 if we have already considered switching to the local-map property |
8152 | of the place where a mouse click occurred. */ | |
8c907a56 | 8153 | volatile int localized_local_map = 0; |
e0dff5f6 | 8154 | |
f4255cd1 JB |
8155 | /* The index in defs[] of the first keymap that has a binding for |
8156 | this key sequence. In other words, the lowest i such that | |
8157 | defs[i] is non-nil. */ | |
8c907a56 | 8158 | volatile int first_binding; |
7189cad8 | 8159 | /* Index of the first key that has no binding. |
a7f26f28 | 8160 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 8161 | volatile int first_unbound; |
284f4730 | 8162 | |
f4255cd1 | 8163 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8164 | input key. |
8165 | ||
8166 | We use this to recover after recognizing a function key. Once we | |
8167 | realize that a suffix of the current key sequence is actually a | |
8168 | function key's escape sequence, we replace the suffix with the | |
8169 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8170 | contains a new and different key sequence, so the echo area, |
8171 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8172 | this situation, we set mock_input to t, set t to 0, and jump to | |
8173 | restart_sequence; the loop will read keys from keybuf up until | |
8174 | mock_input, thus rebuilding the state; and then it will resume | |
8175 | reading characters from the keyboard. */ | |
8c907a56 | 8176 | volatile int mock_input = 0; |
284f4730 | 8177 | |
253598e4 | 8178 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8179 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8180 | and fkey.map is its binding. | |
253598e4 | 8181 | |
f4255cd1 JB |
8182 | These might be > t, indicating that all function key scanning |
8183 | should hold off until t reaches them. We do this when we've just | |
8184 | recognized a function key, to avoid searching for the function | |
8185 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 8186 | volatile keyremap fkey; |
284f4730 | 8187 | |
a612e298 | 8188 | /* Likewise, for key_translation_map. */ |
a7f26f28 | 8189 | volatile keyremap keytran; |
a612e298 | 8190 | |
cd21b839 JB |
8191 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
8192 | we put it off for later. While we're reading, we keep the event here. */ | |
8c907a56 | 8193 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8194 | |
51763820 BF |
8195 | /* See the comment below... */ |
8196 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8197 | Lisp_Object first_event; |
51763820 | 8198 | #endif |
4efda7dd | 8199 | |
8c907a56 GM |
8200 | volatile Lisp_Object original_uppercase; |
8201 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8202 | |
bc536d84 | 8203 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8204 | int dummyflag = 0; |
bc536d84 | 8205 | |
3b9189f8 RS |
8206 | struct buffer *starting_buffer; |
8207 | ||
2dc00208 GM |
8208 | /* List of events for which a fake prefix key has been generated. */ |
8209 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8210 | ||
03cee6ae | 8211 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8212 | int junk; |
03cee6ae | 8213 | #endif |
4efda7dd | 8214 | |
2dc00208 GM |
8215 | struct gcpro gcpro1; |
8216 | ||
8217 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8218 | raw_keybuf_count = 0; |
8219 | ||
4efda7dd RS |
8220 | last_nonmenu_event = Qnil; |
8221 | ||
8222 | delayed_switch_frame = Qnil; | |
a7f26f28 SM |
8223 | fkey.map = Vfunction_key_map; |
8224 | keytran.map = Vkey_translation_map; | |
8225 | /* If there is no translation-map, turn off scanning. */ | |
8226 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; | |
8227 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
a612e298 | 8228 | |
284f4730 JB |
8229 | if (INTERACTIVE) |
8230 | { | |
84d91fda | 8231 | if (!NILP (prompt)) |
a4ef85ee | 8232 | echo_prompt (prompt); |
f2647d04 DL |
8233 | else if (cursor_in_echo_area |
8234 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8235 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8236 | /* This doesn't put in a dash if the echo buffer is empty, so |
8237 | you don't always see a dash hanging out in the minibuffer. */ | |
8238 | echo_dash (); | |
284f4730 JB |
8239 | } |
8240 | ||
f4255cd1 JB |
8241 | /* Record the initial state of the echo area and this_command_keys; |
8242 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8243 | if (INTERACTIVE) |
df0f2ba1 | 8244 | echo_start = echo_length (); |
f4255cd1 | 8245 | keys_start = this_command_key_count; |
6321824f | 8246 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8247 | |
51763820 BF |
8248 | #if defined (GOBBLE_FIRST_EVENT) |
8249 | /* This doesn't quite work, because some of the things that read_char | |
8250 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8251 | this work right. */ |
51763820 | 8252 | |
4efda7dd RS |
8253 | /* Read the first char of the sequence specially, before setting |
8254 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8255 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8256 | &junk); |
51763820 | 8257 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8258 | |
24a40fbb GM |
8259 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8260 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8261 | from_string = Qnil; |
e0dff5f6 | 8262 | |
7b4aedb9 JB |
8263 | /* We jump here when the key sequence has been thoroughly changed, and |
8264 | we need to rescan it starting from the beginning. When we jump here, | |
8265 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8266 | replay_sequence: |
7b4aedb9 | 8267 | |
3b9189f8 | 8268 | starting_buffer = current_buffer; |
7189cad8 | 8269 | first_unbound = bufsize + 1; |
3b9189f8 | 8270 | |
f4255cd1 | 8271 | /* Build our list of keymaps. |
07d2b8de JB |
8272 | If we recognize a function key and replace its escape sequence in |
8273 | keybuf with its symbol, or if the sequence starts with a mouse | |
8274 | click and we need to switch buffers, we jump back here to rebuild | |
8275 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8276 | nmaps = 0; |
284f4730 | 8277 | |
4cbedc16 RS |
8278 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8279 | || !NILP (Voverriding_local_map)) | |
8280 | { | |
8281 | if (3 > nmaps_allocated) | |
8282 | { | |
8283 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8284 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8285 | nmaps_allocated = 3; | |
8286 | } | |
8287 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8288 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8289 | if (!NILP (Voverriding_local_map)) | |
8290 | submaps[nmaps++] = Voverriding_local_map; | |
8291 | } | |
8292 | else | |
8293 | { | |
4cbedc16 RS |
8294 | int nminor; |
8295 | int total; | |
8296 | Lisp_Object *maps; | |
8297 | ||
8298 | nminor = current_minor_maps (0, &maps); | |
8299 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8300 | ||
8301 | if (total > nmaps_allocated) | |
8302 | { | |
8303 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8304 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8305 | nmaps_allocated = total; | |
8306 | } | |
8307 | ||
8308 | if (!NILP (orig_keymap)) | |
8309 | submaps[nmaps++] = orig_keymap; | |
8310 | ||
7d1c4866 | 8311 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8312 | nminor * sizeof (submaps[0])); |
8313 | ||
8314 | nmaps += nminor; | |
8315 | ||
8316 | submaps[nmaps++] = orig_local_map; | |
8317 | } | |
8318 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8319 | |
8320 | /* Find an accurate initial value for first_binding. */ | |
8321 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8322 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8323 | break; |
8324 | ||
3b9189f8 | 8325 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8326 | t = 0; |
8327 | ||
8328 | /* These are no-ops the first time through, but if we restart, they | |
8329 | revert the echo area and this_command_keys to their original state. */ | |
8330 | this_command_key_count = keys_start; | |
df0f2ba1 | 8331 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8332 | echo_truncate (echo_start); |
8333 | ||
cca310da JB |
8334 | /* If the best binding for the current key sequence is a keymap, or |
8335 | we may be looking at a function key's escape sequence, keep on | |
8336 | reading. */ | |
a7f26f28 SM |
8337 | while (first_binding < nmaps |
8338 | /* Keep reading as long as there's a prefix binding. */ | |
8339 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
8340 | /* Don't return in the middle of a possible function key sequence, |
8341 | if the only bindings we found were via case conversion. | |
8342 | Thus, if ESC O a has a function-key-map translation | |
8343 | and ESC o has a binding, don't return after ESC O, | |
8344 | so that we can translate ESC O plus the next character. */ | |
a7f26f28 | 8345 | : (fkey.start < t || keytran.start < t)) |
284f4730 JB |
8346 | { |
8347 | Lisp_Object key; | |
7d6de002 | 8348 | int used_mouse_menu = 0; |
284f4730 | 8349 | |
7b4aedb9 JB |
8350 | /* Where the last real key started. If we need to throw away a |
8351 | key that has expanded into more than one element of keybuf | |
8352 | (say, a mouse click on the mode line which is being treated | |
8353 | as [mode-line (mouse-...)], then we backtrack to this point | |
8354 | of keybuf. */ | |
8c907a56 | 8355 | volatile int last_real_key_start; |
7b4aedb9 | 8356 | |
0a7f1fc0 JB |
8357 | /* These variables are analogous to echo_start and keys_start; |
8358 | while those allow us to restart the entire key sequence, | |
8359 | echo_local_start and keys_local_start allow us to throw away | |
8360 | just one key. */ | |
8c907a56 | 8361 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8362 | |
2cf4b7b2 | 8363 | /* key-translation-map is applied *after* function-key-map. */ |
a7f26f28 | 8364 | eassert (keytran.end <= fkey.start); |
7189cad8 | 8365 | |
a7f26f28 | 8366 | if (first_unbound < fkey.start && first_unbound < keytran.start) |
7189cad8 SM |
8367 | { /* The prefix upto first_unbound has no binding and has |
8368 | no translation left to do either, so we know it's unbound. | |
8369 | If we don't stop now, we risk staying here indefinitely | |
8370 | (if the user keeps entering fkey or keytran prefixes | |
8371 | like C-c ESC ESC ESC ESC ...) */ | |
8372 | int i; | |
8373 | for (i = first_unbound + 1; i < t; i++) | |
8374 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8375 | mock_input = t - first_unbound - 1; | |
a7f26f28 SM |
8376 | fkey.end = fkey.start -= first_unbound + 1; |
8377 | fkey.map = Vfunction_key_map; | |
8378 | keytran.end = keytran.start -= first_unbound + 1; | |
8379 | keytran.map = Vkey_translation_map; | |
7189cad8 SM |
8380 | goto replay_sequence; |
8381 | } | |
8382 | ||
284f4730 | 8383 | if (t >= bufsize) |
3fe8e9a2 | 8384 | error ("Key sequence too long"); |
284f4730 | 8385 | |
f4255cd1 JB |
8386 | if (INTERACTIVE) |
8387 | echo_local_start = echo_length (); | |
8388 | keys_local_start = this_command_key_count; | |
8389 | local_first_binding = first_binding; | |
df0f2ba1 | 8390 | |
f4255cd1 | 8391 | replay_key: |
0a7f1fc0 | 8392 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8393 | jumped back up to replay_key; in that case, these restore the |
8394 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8395 | loop. */ |
40932d1a | 8396 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8397 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8398 | this_command_key_count = keys_local_start; |
8399 | first_binding = local_first_binding; | |
8400 | ||
7e85b935 RS |
8401 | /* By default, assume each event is "real". */ |
8402 | last_real_key_start = t; | |
8403 | ||
f4255cd1 | 8404 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8405 | if (t < mock_input) |
8406 | { | |
8407 | key = keybuf[t]; | |
8408 | add_command_key (key); | |
f2647d04 DL |
8409 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8410 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8411 | echo_char (key); |
284f4730 | 8412 | } |
253598e4 JB |
8413 | |
8414 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8415 | else |
8416 | { | |
beecf6a1 | 8417 | { |
c5fdd383 KH |
8418 | #ifdef MULTI_KBOARD |
8419 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8420 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8421 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8422 | { |
5798cf15 KH |
8423 | if (!NILP (delayed_switch_frame)) |
8424 | { | |
c5fdd383 | 8425 | interrupted_kboard->kbd_queue |
5798cf15 | 8426 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8427 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8428 | delayed_switch_frame = Qnil; |
8429 | } | |
beecf6a1 | 8430 | while (t > 0) |
c5fdd383 KH |
8431 | interrupted_kboard->kbd_queue |
8432 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8433 | |
8434 | /* If the side queue is non-empty, ensure it begins with a | |
8435 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8436 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8437 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8438 | !(EVENT_HAS_PARAMETERS (key) |
8439 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8440 | Qswitch_frame)))) | |
df0f2ba1 KH |
8441 | { |
8442 | Lisp_Object frame; | |
8443 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8444 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8445 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8446 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8447 | } |
beecf6a1 | 8448 | mock_input = 0; |
24a40fbb GM |
8449 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8450 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8451 | goto replay_sequence; |
8452 | } | |
bded54dd | 8453 | #endif |
8c907a56 GM |
8454 | key = read_char (NILP (prompt), nmaps, |
8455 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8456 | &used_mouse_menu); |
8457 | } | |
284f4730 | 8458 | |
dcc408a0 RS |
8459 | /* read_char returns t when it shows a menu and the user rejects it. |
8460 | Just return -1. */ | |
8461 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8462 | { |
8463 | unbind_to (count, Qnil); | |
2dc00208 | 8464 | UNGCPRO; |
7d18f9ae RS |
8465 | return -1; |
8466 | } | |
dcc408a0 | 8467 | |
f4255cd1 | 8468 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8469 | Emacs 18 handles this by returning immediately with a |
8470 | zero, so that's what we'll do. */ | |
8c18cbfb | 8471 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8472 | { |
f4255cd1 | 8473 | t = 0; |
bc536d84 RS |
8474 | /* The Microsoft C compiler can't handle the goto that |
8475 | would go here. */ | |
309b0fc8 | 8476 | dummyflag = 1; |
bc536d84 | 8477 | break; |
cd21b839 | 8478 | } |
df0f2ba1 | 8479 | |
3cb81011 KH |
8480 | /* If the current buffer has been changed from under us, the |
8481 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8482 | if (BUFFERP (key)) |
3cb81011 | 8483 | { |
e431fcda DL |
8484 | EMACS_TIME initial_idleness_start_time; |
8485 | EMACS_SET_SECS_USECS (initial_idleness_start_time, | |
8486 | EMACS_SECS (timer_last_idleness_start_time), | |
8487 | EMACS_USECS (timer_last_idleness_start_time)); | |
3021d3a9 RS |
8488 | |
8489 | /* Resume idle state, using the same start-time as before. */ | |
8490 | timer_start_idle (); | |
8491 | timer_idleness_start_time = initial_idleness_start_time; | |
8492 | ||
3cb81011 | 8493 | mock_input = t; |
f571ae0d RS |
8494 | /* Reset the current buffer from the selected window |
8495 | in case something changed the former and not the latter. | |
8496 | This is to be more consistent with the behavior | |
8497 | of the command_loop_1. */ | |
8498 | if (fix_current_buffer) | |
a94a4335 | 8499 | { |
788f89eb | 8500 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8501 | Fkill_emacs (Qnil); |
8502 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8503 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8504 | } | |
f571ae0d | 8505 | |
24a40fbb GM |
8506 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8507 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8508 | goto replay_sequence; |
8509 | } | |
8510 | ||
3b9189f8 RS |
8511 | /* If we have a quit that was typed in another frame, and |
8512 | quit_throw_to_read_char switched buffers, | |
8513 | replay to get the right keymap. */ | |
f4e05d97 GM |
8514 | if (INTEGERP (key) |
8515 | && XINT (key) == quit_char | |
8516 | && current_buffer != starting_buffer) | |
3b9189f8 | 8517 | { |
7d18f9ae RS |
8518 | GROW_RAW_KEYBUF; |
8519 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8520 | keybuf[t++] = key; |
8521 | mock_input = t; | |
8522 | Vquit_flag = Qnil; | |
24a40fbb GM |
8523 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8524 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8525 | goto replay_sequence; |
8526 | } | |
3cb81011 | 8527 | |
284f4730 | 8528 | Vquit_flag = Qnil; |
7d18f9ae RS |
8529 | |
8530 | if (EVENT_HAS_PARAMETERS (key) | |
8531 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
8532 | { | |
8533 | /* If we're at the beginning of a key sequence, and the caller | |
8534 | says it's okay, go ahead and return this event. If we're | |
8535 | in the midst of a key sequence, delay it until the end. */ | |
8536 | if (t > 0 || !can_return_switch_frame) | |
8537 | { | |
8538 | delayed_switch_frame = key; | |
8539 | goto replay_key; | |
8540 | } | |
8541 | } | |
8542 | ||
8543 | GROW_RAW_KEYBUF; | |
8544 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8545 | } |
284f4730 | 8546 | |
df0f2ba1 | 8547 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8548 | in their CHAR-ADDRESS field. For example, a click on |
8549 | the mode line is prefixed by the symbol `mode-line'. | |
8550 | ||
8551 | Furthermore, key sequences beginning with mouse clicks | |
8552 | are read using the keymaps of the buffer clicked on, not | |
8553 | the current buffer. So we may have to switch the buffer | |
8554 | here. | |
8555 | ||
8556 | When we turn one event into two events, we must make sure | |
8557 | that neither of the two looks like the original--so that, | |
8558 | if we replay the events, they won't be expanded again. | |
8559 | If not for this, such reexpansion could happen either here | |
8560 | or when user programs play with this-command-keys. */ | |
8561 | if (EVENT_HAS_PARAMETERS (key)) | |
8562 | { | |
9b8eb840 | 8563 | Lisp_Object kind; |
cca310da | 8564 | |
9b8eb840 | 8565 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8566 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8567 | { |
9b8eb840 | 8568 | Lisp_Object window, posn; |
f4255cd1 | 8569 | |
9b8eb840 KH |
8570 | window = POSN_WINDOW (EVENT_START (key)); |
8571 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8572 | |
2cf066c3 GM |
8573 | if (CONSP (posn) |
8574 | || (!NILP (fake_prefixed_keys) | |
8575 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8576 | { |
2cf066c3 GM |
8577 | /* We're looking a second time at an event for which |
8578 | we generated a fake prefix key. Set | |
7e85b935 RS |
8579 | last_real_key_start appropriately. */ |
8580 | if (t > 0) | |
8581 | last_real_key_start = t - 1; | |
cd21b839 | 8582 | } |
7e85b935 RS |
8583 | |
8584 | /* Key sequences beginning with mouse clicks are | |
8585 | read using the keymaps in the buffer clicked on, | |
8586 | not the current buffer. If we're at the | |
8587 | beginning of a key sequence, switch buffers. */ | |
8588 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8589 | && WINDOWP (window) |
8590 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8591 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8592 | { |
7d18f9ae | 8593 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8594 | keybuf[t] = key; |
8595 | mock_input = t + 1; | |
8596 | ||
8597 | /* Arrange to go back to the original buffer once we're | |
8598 | done reading the key sequence. Note that we can't | |
8599 | use save_excursion_{save,restore} here, because they | |
8600 | save point as well as the current buffer; we don't | |
8601 | want to save point, because redisplay may change it, | |
8602 | to accommodate a Fset_window_start or something. We | |
8603 | don't want to do this at the top of the function, | |
8604 | because we may get input from a subprocess which | |
8605 | wants to change the selected window and stuff (say, | |
8606 | emacsclient). */ | |
8607 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8608 | ||
788f89eb | 8609 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8610 | Fkill_emacs (Qnil); |
24a40fbb | 8611 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8612 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8613 | Qlocal_map); |
8614 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8615 | goto replay_sequence; |
0a7f1fc0 | 8616 | } |
7ee32cda | 8617 | |
e0dff5f6 RS |
8618 | /* For a mouse click, get the local text-property keymap |
8619 | of the place clicked on, rather than point. */ | |
7ee32cda | 8620 | if (last_real_key_start == 0 |
7539e11f | 8621 | && CONSP (XCDR (key)) |
e0dff5f6 | 8622 | && ! localized_local_map) |
5ec75a55 | 8623 | { |
e0dff5f6 RS |
8624 | Lisp_Object map_here, start, pos; |
8625 | ||
8626 | localized_local_map = 1; | |
8627 | start = EVENT_START (key); | |
7ee32cda | 8628 | |
7539e11f | 8629 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8630 | { |
8631 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8632 | if (INTEGERP (pos) |
8633 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8634 | { |
30690496 | 8635 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8636 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8637 | if (!EQ (map_here, orig_local_map)) |
8638 | { | |
8639 | orig_local_map = map_here; | |
8640 | keybuf[t] = key; | |
8641 | mock_input = t + 1; | |
5ec75a55 | 8642 | |
30690496 DL |
8643 | goto replay_sequence; |
8644 | } | |
8645 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8646 | current_buffer, Qkeymap); |
30690496 DL |
8647 | if (!EQ (map_here, orig_keymap)) |
8648 | { | |
8649 | orig_keymap = map_here; | |
8650 | keybuf[t] = key; | |
8651 | mock_input = t + 1; | |
8652 | ||
e0dff5f6 RS |
8653 | goto replay_sequence; |
8654 | } | |
8655 | } | |
8656 | } | |
8657 | } | |
8658 | ||
8659 | /* Expand mode-line and scroll-bar events into two events: | |
8660 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8661 | if (SYMBOLP (posn) |
8662 | && (NILP (fake_prefixed_keys) | |
8663 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8664 | { |
7e85b935 | 8665 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8666 | error ("Key sequence too long"); |
7ee32cda | 8667 | |
2dc00208 GM |
8668 | keybuf[t] = posn; |
8669 | keybuf[t + 1] = key; | |
8670 | mock_input = t + 2; | |
8671 | ||
8672 | /* Record that a fake prefix key has been generated | |
8673 | for KEY. Don't modify the event; this would | |
8674 | prevent proper action when the event is pushed | |
c7f4f573 | 8675 | back into unread-command-events. */ |
2dc00208 | 8676 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
8677 | |
8678 | /* If on a mode line string with a local keymap, | |
8679 | reconsider the key sequence with that keymap. */ | |
8680 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8681 | { | |
30690496 | 8682 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8683 | |
8684 | string = POSN_STRING (EVENT_START (key)); | |
8685 | pos = XCDR (string); | |
8686 | string = XCAR (string); | |
52e386c2 | 8687 | if (XINT (pos) >= 0 |
d5db4077 | 8688 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
8689 | { |
8690 | map = Fget_text_property (pos, Qlocal_map, string); | |
8691 | if (!NILP (map)) | |
8692 | orig_local_map = map; | |
8693 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8694 | if (!NILP (map2)) | |
8695 | orig_keymap = map2; | |
8696 | if (!NILP (map) || !NILP (map2)) | |
8697 | goto replay_sequence; | |
8698 | } | |
7ee32cda GM |
8699 | } |
8700 | ||
7e85b935 | 8701 | goto replay_key; |
5ec75a55 | 8702 | } |
db14cfc5 GM |
8703 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8704 | && NILP (from_string)) | |
8705 | { | |
8706 | /* For a click on a string, i.e. overlay string or a | |
8707 | string displayed via the `display' property, | |
8708 | consider `local-map' and `keymap' properties of | |
8709 | that string. */ | |
8710 | Lisp_Object string, pos, map, map2; | |
8711 | ||
8712 | string = POSN_STRING (EVENT_START (key)); | |
8713 | pos = XCDR (string); | |
8714 | string = XCAR (string); | |
8715 | if (XINT (pos) >= 0 | |
d5db4077 | 8716 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
8717 | { |
8718 | map = Fget_text_property (pos, Qlocal_map, string); | |
8719 | if (!NILP (map)) | |
8720 | orig_local_map = map; | |
8721 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8722 | if (!NILP (map2)) | |
8723 | orig_keymap = map2; | |
8724 | ||
8725 | if (!NILP (map) || !NILP (map2)) | |
8726 | { | |
8727 | from_string = string; | |
8728 | goto replay_sequence; | |
8729 | } | |
8730 | } | |
8731 | } | |
0a7f1fc0 | 8732 | } |
7539e11f | 8733 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8734 | && CONSP (EVENT_START (key)) |
7539e11f | 8735 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8736 | { |
9b8eb840 | 8737 | Lisp_Object posn; |
7e85b935 | 8738 | |
9b8eb840 | 8739 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8740 | /* Handle menu-bar events: |
8741 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8742 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8743 | { |
8744 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8745 | error ("Key sequence too long"); |
7e85b935 RS |
8746 | keybuf[t] = posn; |
8747 | keybuf[t+1] = key; | |
8748 | ||
8749 | /* Zap the position in key, so we know that we've | |
8750 | expanded it, and don't try to do so again. */ | |
f3fbd155 KR |
8751 | POSN_BUFFER_SET_POSN (EVENT_START (key), |
8752 | Fcons (posn, Qnil)); | |
7e85b935 RS |
8753 | |
8754 | mock_input = t + 2; | |
8755 | goto replay_sequence; | |
8756 | } | |
8c18cbfb | 8757 | else if (CONSP (posn)) |
7e85b935 RS |
8758 | { |
8759 | /* We're looking at the second event of a | |
8760 | sequence which we expanded before. Set | |
8761 | last_real_key_start appropriately. */ | |
8762 | if (last_real_key_start == t && t > 0) | |
8763 | last_real_key_start = t - 1; | |
8764 | } | |
a6d53864 | 8765 | } |
284f4730 | 8766 | } |
f4255cd1 JB |
8767 | |
8768 | /* We have finally decided that KEY is something we might want | |
8769 | to look up. */ | |
284f4730 JB |
8770 | first_binding = (follow_key (key, |
8771 | nmaps - first_binding, | |
253598e4 | 8772 | submaps + first_binding, |
284f4730 | 8773 | defs + first_binding, |
4e50f26a | 8774 | submaps + first_binding) |
284f4730 | 8775 | + first_binding); |
0a7f1fc0 | 8776 | |
f4255cd1 | 8777 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
8778 | if (first_binding < nmaps) |
8779 | /* This is needed for the following scenario: | |
8780 | event 0: a down-event that gets dropped by calling replay_key. | |
8781 | event 1: some normal prefix like C-h. | |
a7f26f28 SM |
8782 | After event 0, first_unbound is 0, after event 1 fkey.start |
8783 | and keytran.start are both 1, so when we see that C-h is bound, | |
65e0fbbf SM |
8784 | we need to update first_unbound. */ |
8785 | first_unbound = max (t + 1, first_unbound); | |
8786 | else | |
0a7f1fc0 | 8787 | { |
9b8eb840 | 8788 | Lisp_Object head; |
7189cad8 | 8789 | |
a7f26f28 | 8790 | /* Remember the position to put an upper bound on fkey.start. */ |
7189cad8 | 8791 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 8792 | |
9b8eb840 | 8793 | head = EVENT_HEAD (key); |
24736fbc | 8794 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
8795 | { |
8796 | read_key_sequence_cmd = Vprefix_help_command; | |
8797 | keybuf[t++] = key; | |
8798 | last_nonmenu_event = key; | |
bc536d84 RS |
8799 | /* The Microsoft C compiler can't handle the goto that |
8800 | would go here. */ | |
309b0fc8 | 8801 | dummyflag = 1; |
0d882d52 | 8802 | break; |
7e85b935 RS |
8803 | } |
8804 | ||
8c18cbfb | 8805 | if (SYMBOLP (head)) |
0a7f1fc0 | 8806 | { |
9b8eb840 KH |
8807 | Lisp_Object breakdown; |
8808 | int modifiers; | |
0a7f1fc0 | 8809 | |
9b8eb840 | 8810 | breakdown = parse_modifiers (head); |
7539e11f | 8811 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
8812 | /* Attempt to reduce an unbound mouse event to a simpler |
8813 | event that is bound: | |
8814 | Drags reduce to clicks. | |
8815 | Double-clicks reduce to clicks. | |
8816 | Triple-clicks reduce to double-clicks, then to clicks. | |
8817 | Down-clicks are eliminated. | |
8818 | Double-downs reduce to downs, then are eliminated. | |
8819 | Triple-downs reduce to double-downs, then to downs, | |
8820 | then are eliminated. */ | |
8821 | if (modifiers & (down_modifier | drag_modifier | |
8822 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 8823 | { |
559f9d04 RS |
8824 | while (modifiers & (down_modifier | drag_modifier |
8825 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
8826 | { |
8827 | Lisp_Object new_head, new_click; | |
8828 | if (modifiers & triple_modifier) | |
8829 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
8830 | else if (modifiers & double_modifier) |
8831 | modifiers &= ~double_modifier; | |
8832 | else if (modifiers & drag_modifier) | |
8833 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
8834 | else |
8835 | { | |
8836 | /* Dispose of this `down' event by simply jumping | |
8837 | back to replay_key, to get another event. | |
8838 | ||
8839 | Note that if this event came from mock input, | |
8840 | then just jumping back to replay_key will just | |
8841 | hand it to us again. So we have to wipe out any | |
8842 | mock input. | |
8843 | ||
8844 | We could delete keybuf[t] and shift everything | |
8845 | after that to the left by one spot, but we'd also | |
8846 | have to fix up any variable that points into | |
8847 | keybuf, and shifting isn't really necessary | |
8848 | anyway. | |
8849 | ||
8850 | Adding prefixes for non-textual mouse clicks | |
8851 | creates two characters of mock input, and both | |
8852 | must be thrown away. If we're only looking at | |
8853 | the prefix now, we can just jump back to | |
8854 | replay_key. On the other hand, if we've already | |
8855 | processed the prefix, and now the actual click | |
8856 | itself is giving us trouble, then we've lost the | |
8857 | state of the keymaps we want to backtrack to, and | |
8858 | we need to replay the whole sequence to rebuild | |
8859 | it. | |
8860 | ||
8861 | Beyond that, only function key expansion could | |
8862 | create more than two keys, but that should never | |
8863 | generate mouse events, so it's okay to zero | |
8864 | mock_input in that case too. | |
8865 | ||
65e0fbbf SM |
8866 | FIXME: The above paragraph seems just plain |
8867 | wrong, if you consider things like | |
8868 | xterm-mouse-mode. -stef | |
8869 | ||
559f9d04 RS |
8870 | Isn't this just the most wonderful code ever? */ |
8871 | if (t == last_real_key_start) | |
8872 | { | |
8873 | mock_input = 0; | |
8874 | goto replay_key; | |
8875 | } | |
8876 | else | |
8877 | { | |
8878 | mock_input = last_real_key_start; | |
8879 | goto replay_sequence; | |
8880 | } | |
8881 | } | |
8882 | ||
27203ead | 8883 | new_head |
7539e11f | 8884 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
8885 | new_click |
8886 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
8887 | |
8888 | /* Look for a binding for this new key. follow_key | |
8889 | promises that it didn't munge submaps the | |
8890 | last time we called it, since key was unbound. */ | |
27203ead RS |
8891 | first_binding |
8892 | = (follow_key (new_click, | |
8893 | nmaps - local_first_binding, | |
8894 | submaps + local_first_binding, | |
8895 | defs + local_first_binding, | |
4e50f26a | 8896 | submaps + local_first_binding) |
27203ead | 8897 | + local_first_binding); |
fbcd35bd JB |
8898 | |
8899 | /* If that click is bound, go for it. */ | |
8900 | if (first_binding < nmaps) | |
8901 | { | |
8902 | key = new_click; | |
8903 | break; | |
8904 | } | |
8905 | /* Otherwise, we'll leave key set to the drag event. */ | |
8906 | } | |
0a7f1fc0 JB |
8907 | } |
8908 | } | |
8909 | } | |
8910 | ||
284f4730 | 8911 | keybuf[t++] = key; |
7d6de002 RS |
8912 | /* Normally, last_nonmenu_event gets the previous key we read. |
8913 | But when a mouse popup menu is being used, | |
8914 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8915 | event that preceded the first level of menu. */ | |
8916 | if (!used_mouse_menu) | |
8917 | last_nonmenu_event = key; | |
284f4730 | 8918 | |
6321824f RS |
8919 | /* Record what part of this_command_keys is the current key sequence. */ |
8920 | this_single_command_key_start = this_command_key_count - t; | |
8921 | ||
65e0fbbf SM |
8922 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
8923 | /* There is a binding and it's not a prefix. | |
8924 | There is thus no function-key in this sequence. | |
8925 | Moving fkey.start is important in this case to allow keytran.start | |
8926 | to go over the sequence before we return (since we keep the | |
8927 | invariant that keytran.end <= fkey.start). */ | |
8928 | { | |
a7f26f28 SM |
8929 | if (fkey.start < t) |
8930 | (fkey.start = fkey.end = t, fkey.map = Vfunction_key_map); | |
65e0fbbf SM |
8931 | } |
8932 | else | |
8933 | /* If the sequence is unbound, see if we can hang a function key | |
8934 | off the end of it. */ | |
284f4730 | 8935 | { |
a7f26f28 | 8936 | Lisp_Object next; |
284f4730 | 8937 | |
a7f26f28 SM |
8938 | /* Continue scan from fkey.end until we find a bound suffix. |
8939 | If we fail, increment fkey.start and start over from there. */ | |
8940 | while (fkey.end < t) | |
284f4730 | 8941 | { |
f4255cd1 JB |
8942 | Lisp_Object key; |
8943 | ||
a7f26f28 SM |
8944 | key = keybuf[fkey.end++]; |
8945 | next = access_keymap (fkey.map, key, 1, 0, 1); | |
c700c260 RS |
8946 | |
8947 | /* Handle symbol with autoload definition. */ | |
a7f26f28 SM |
8948 | if (SYMBOLP (next) && ! NILP (Ffboundp (next)) |
8949 | && CONSP (XSYMBOL (next)->function) | |
8950 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8951 | do_autoload (XSYMBOL (next)->function, next); | |
c700c260 RS |
8952 | |
8953 | /* Handle a symbol whose function definition is a keymap | |
8954 | or an array. */ | |
a7f26f28 SM |
8955 | if (SYMBOLP (next) && ! NILP (Ffboundp (next)) |
8956 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
8957 | || KEYMAPP (XSYMBOL (next)->function))) | |
8958 | next = XSYMBOL (next)->function; | |
067ffa38 | 8959 | |
7a80a6f6 RS |
8960 | #if 0 /* I didn't turn this on, because it might cause trouble |
8961 | for the mapping of return into C-m and tab into C-i. */ | |
8962 | /* Optionally don't map function keys into other things. | |
8963 | This enables the user to redefine kp- keys easily. */ | |
8964 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
a7f26f28 | 8965 | next = Qnil; |
7a80a6f6 RS |
8966 | #endif |
8967 | ||
1abe6abe RS |
8968 | /* If the function key map gives a function, not an |
8969 | array, then call the function with no args and use | |
8970 | its value instead. */ | |
a7f26f28 | 8971 | if (SYMBOLP (next) && ! NILP (Ffboundp (next)) |
65e0fbbf SM |
8972 | /* If there's a binding (i.e. first_binding >= nmaps) |
8973 | we don't want to apply this function-key-mapping. */ | |
a7f26f28 | 8974 | && fkey.end == t && first_binding >= nmaps) |
1abe6abe RS |
8975 | { |
8976 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8977 | Lisp_Object tem; | |
a7f26f28 | 8978 | tem = next; |
1abe6abe | 8979 | |
a7f26f28 SM |
8980 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
8981 | next = call1 (next, prompt); | |
1abe6abe RS |
8982 | UNGCPRO; |
8983 | /* If the function returned something invalid, | |
8984 | barf--don't ignore it. | |
df0f2ba1 | 8985 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe | 8986 | other variables.) */ |
a7f26f28 | 8987 | if (! (VECTORP (next) || STRINGP (next))) |
6321824f | 8988 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8989 | } |
8990 | ||
a7f26f28 | 8991 | /* If keybuf[fkey.start..fkey.end] is bound in the |
a764a753 | 8992 | function key map and it's a suffix of the current |
a7f26f28 SM |
8993 | sequence (i.e. fkey.end == t), replace it with |
8994 | the binding and restart with fkey.start at the end. */ | |
8995 | if ((VECTORP (next) || STRINGP (next)) | |
65e0fbbf SM |
8996 | /* If there's a binding (i.e. first_binding >= nmaps) |
8997 | we don't want to apply this function-key-mapping. */ | |
a7f26f28 | 8998 | && fkey.end == t && first_binding >= nmaps) |
284f4730 | 8999 | { |
a7f26f28 | 9000 | int len = XFASTINT (Flength (next)); |
f5ea6163 | 9001 | |
a7f26f28 | 9002 | t = fkey.start + len; |
284f4730 | 9003 | if (t >= bufsize) |
3fe8e9a2 | 9004 | error ("Key sequence too long"); |
284f4730 | 9005 | |
a7f26f28 SM |
9006 | if (VECTORP (next)) |
9007 | bcopy (XVECTOR (next)->contents, | |
9008 | keybuf + fkey.start, | |
9009 | (t - fkey.start) * sizeof (keybuf[0])); | |
9010 | else if (STRINGP (next)) | |
f5ea6163 JB |
9011 | { |
9012 | int i; | |
9013 | ||
9014 | for (i = 0; i < len; i++) | |
a7f26f28 | 9015 | XSETFASTINT (keybuf[fkey.start + i], SREF (next, i)); |
f5ea6163 | 9016 | } |
df0f2ba1 | 9017 | |
284f4730 | 9018 | mock_input = t; |
a7f26f28 SM |
9019 | fkey.start = fkey.end = t; |
9020 | fkey.map = Vfunction_key_map; | |
284f4730 | 9021 | |
3bd0dffb KH |
9022 | /* Do pass the results through key-translation-map. |
9023 | But don't retranslate what key-translation-map | |
9024 | has already translated. */ | |
a7f26f28 SM |
9025 | keytran.end = keytran.start; |
9026 | keytran.map = Vkey_translation_map; | |
00a78037 | 9027 | |
f4255cd1 | 9028 | goto replay_sequence; |
284f4730 | 9029 | } |
df0f2ba1 | 9030 | |
a7f26f28 | 9031 | fkey.map = get_keymap (next, 0, 1); |
284f4730 | 9032 | |
df0f2ba1 | 9033 | /* If we no longer have a bound suffix, try a new positions for |
a7f26f28 SM |
9034 | fkey.start. */ |
9035 | if (!CONSP (fkey.map)) | |
284f4730 | 9036 | { |
a7f26f28 SM |
9037 | fkey.end = ++fkey.start; |
9038 | fkey.map = Vfunction_key_map; | |
284f4730 JB |
9039 | } |
9040 | } | |
9041 | } | |
a612e298 RS |
9042 | |
9043 | /* Look for this sequence in key-translation-map. */ | |
9044 | { | |
a7f26f28 | 9045 | Lisp_Object next; |
a612e298 | 9046 | |
a7f26f28 SM |
9047 | /* Scan from keytran.end until we find a bound suffix. */ |
9048 | while (keytran.end < fkey.start) | |
a612e298 RS |
9049 | { |
9050 | Lisp_Object key; | |
9051 | ||
a7f26f28 SM |
9052 | key = keybuf[keytran.end++]; |
9053 | next = access_keymap (keytran.map, key, 1, 0, 1); | |
a612e298 | 9054 | |
c700c260 | 9055 | /* Handle symbol with autoload definition. */ |
a7f26f28 SM |
9056 | if (SYMBOLP (next) && ! NILP (Ffboundp (next)) |
9057 | && CONSP (XSYMBOL (next)->function) | |
9058 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
9059 | do_autoload (XSYMBOL (next)->function, next); | |
e83f6bb0 | 9060 | |
c700c260 RS |
9061 | /* Handle a symbol whose function definition is a keymap |
9062 | or an array. */ | |
a7f26f28 SM |
9063 | if (SYMBOLP (next) && ! NILP (Ffboundp (next)) |
9064 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
9065 | || KEYMAPP (XSYMBOL (next)->function))) | |
9066 | next = XSYMBOL (next)->function; | |
e83f6bb0 | 9067 | |
1abe6abe | 9068 | /* If the key translation map gives a function, not an |
e83f6bb0 | 9069 | array, then call the function with one arg and use |
1abe6abe | 9070 | its value instead. */ |
a7f26f28 | 9071 | if (SYMBOLP (next) && ! NILP (Ffboundp (next))) |
1abe6abe RS |
9072 | { |
9073 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9074 | Lisp_Object tem; | |
a7f26f28 | 9075 | tem = next; |
1abe6abe | 9076 | |
a7f26f28 SM |
9077 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
9078 | next = call1 (next, prompt); | |
1abe6abe RS |
9079 | UNGCPRO; |
9080 | /* If the function returned something invalid, | |
9081 | barf--don't ignore it. | |
df0f2ba1 | 9082 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe | 9083 | other variables.) */ |
a7f26f28 | 9084 | if (! (VECTORP (next) || STRINGP (next))) |
40932d1a | 9085 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
9086 | } |
9087 | ||
a7f26f28 | 9088 | /* If keybuf[keytran.start..keytran.end] is bound in the |
1abe6abe | 9089 | key translation map and it's a suffix of the current |
a7f26f28 SM |
9090 | sequence (i.e. keytran.end == t), replace it with |
9091 | the binding and restart with keytran.start at the end. */ | |
9092 | if ((VECTORP (next) || STRINGP (next))) | |
a612e298 | 9093 | { |
a7f26f28 SM |
9094 | int len = XFASTINT (Flength (next)); |
9095 | int i, diff = len - (keytran.end - keytran.start); | |
a612e298 | 9096 | |
2cf4b7b2 SM |
9097 | mock_input = max (t, mock_input); |
9098 | if (mock_input + diff >= bufsize) | |
3fe8e9a2 | 9099 | error ("Key sequence too long"); |
a612e298 | 9100 | |
a7f26f28 | 9101 | /* Shift the keys that are after keytran.end. */ |
2cf4b7b2 | 9102 | if (diff < 0) |
a7f26f28 | 9103 | for (i = keytran.end; i < mock_input; i++) |
2cf4b7b2 SM |
9104 | keybuf[i + diff] = keybuf[i]; |
9105 | else if (diff > 0) | |
a7f26f28 | 9106 | for (i = mock_input - 1; i >= keytran.end; i--) |
2cf4b7b2 | 9107 | keybuf[i + diff] = keybuf[i]; |
a7f26f28 SM |
9108 | /* Replace the keys between keytran.start and keytran.end |
9109 | with those from next. */ | |
2cf4b7b2 | 9110 | for (i = 0; i < len; i++) |
a7f26f28 SM |
9111 | keybuf[keytran.start + i] |
9112 | = Faref (next, make_number (i)); | |
2cf4b7b2 SM |
9113 | |
9114 | mock_input += diff; | |
a7f26f28 SM |
9115 | keytran.start = keytran.end += diff; |
9116 | keytran.map = Vkey_translation_map; | |
a612e298 | 9117 | |
2cf4b7b2 | 9118 | /* Adjust the function-key-map counters. */ |
a7f26f28 SM |
9119 | fkey.start += diff; |
9120 | fkey.end += diff; | |
00a78037 | 9121 | |
a612e298 RS |
9122 | goto replay_sequence; |
9123 | } | |
9124 | ||
a7f26f28 | 9125 | keytran.map = get_keymap (next, 0, 1); |
a612e298 | 9126 | |
df0f2ba1 | 9127 | /* If we no longer have a bound suffix, try a new positions for |
a7f26f28 SM |
9128 | keytran.start. */ |
9129 | if (!CONSP (keytran.map)) | |
a612e298 | 9130 | { |
a7f26f28 SM |
9131 | keytran.end = ++keytran.start; |
9132 | keytran.map = Vkey_translation_map; | |
a612e298 RS |
9133 | } |
9134 | } | |
9135 | } | |
4e50f26a RS |
9136 | |
9137 | /* If KEY is not defined in any of the keymaps, | |
9138 | and cannot be part of a function key or translation, | |
9139 | and is an upper case letter | |
9140 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9141 | if (first_binding >= nmaps |
a7f26f28 | 9142 | && fkey.start >= t && keytran.start >= t |
8c18cbfb | 9143 | && INTEGERP (key) |
4e50f26a | 9144 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9145 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9146 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9147 | || (XINT (key) & shift_modifier))) | |
9148 | { | |
569871d2 | 9149 | Lisp_Object new_key; |
569871d2 | 9150 | |
309b0fc8 RS |
9151 | original_uppercase = key; |
9152 | original_uppercase_position = t - 1; | |
9153 | ||
831f35a2 | 9154 | if (XINT (key) & shift_modifier) |
569871d2 | 9155 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9156 | else |
569871d2 RS |
9157 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9158 | | (XINT (key) & ~0x3ffff))); | |
9159 | ||
3fe8e9a2 RS |
9160 | /* We have to do this unconditionally, regardless of whether |
9161 | the lower-case char is defined in the keymaps, because they | |
9162 | might get translated through function-key-map. */ | |
9163 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9164 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9165 | |
9166 | goto replay_sequence; | |
4e50f26a | 9167 | } |
ef8fd672 RS |
9168 | /* If KEY is not defined in any of the keymaps, |
9169 | and cannot be part of a function key or translation, | |
9170 | and is a shifted function key, | |
9171 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9172 | if (first_binding >= nmaps |
a7f26f28 | 9173 | && fkey.start >= t && keytran.start >= t |
ef8fd672 RS |
9174 | && SYMBOLP (key)) |
9175 | { | |
9176 | Lisp_Object breakdown; | |
9177 | int modifiers; | |
9178 | ||
9179 | breakdown = parse_modifiers (key); | |
7539e11f | 9180 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9181 | if (modifiers & shift_modifier) |
9182 | { | |
569871d2 | 9183 | Lisp_Object new_key; |
3fe8e9a2 RS |
9184 | |
9185 | original_uppercase = key; | |
9186 | original_uppercase_position = t - 1; | |
ef8fd672 | 9187 | |
569871d2 RS |
9188 | modifiers &= ~shift_modifier; |
9189 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9190 | XCAR (breakdown)); |
569871d2 | 9191 | |
3fe8e9a2 | 9192 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9193 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9194 | |
9195 | goto replay_sequence; | |
ef8fd672 RS |
9196 | } |
9197 | } | |
284f4730 JB |
9198 | } |
9199 | ||
309b0fc8 | 9200 | if (!dummyflag) |
bc536d84 RS |
9201 | read_key_sequence_cmd = (first_binding < nmaps |
9202 | ? defs[first_binding] | |
9203 | : Qnil); | |
284f4730 | 9204 | |
cd21b839 | 9205 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9206 | unbind_to (count, Qnil); |
07f76a14 | 9207 | |
3fe8e9a2 RS |
9208 | /* Don't downcase the last character if the caller says don't. |
9209 | Don't downcase it if the result is undefined, either. */ | |
9210 | if ((dont_downcase_last || first_binding >= nmaps) | |
9211 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9212 | keybuf[t - 1] = original_uppercase; |
9213 | ||
07f76a14 JB |
9214 | /* Occasionally we fabricate events, perhaps by expanding something |
9215 | according to function-key-map, or by adding a prefix symbol to a | |
9216 | mouse click in the scroll bar or modeline. In this cases, return | |
9217 | the entire generated key sequence, even if we hit an unbound | |
9218 | prefix or a definition before the end. This means that you will | |
9219 | be able to push back the event properly, and also means that | |
9220 | read-key-sequence will always return a logical unit. | |
9221 | ||
9222 | Better ideas? */ | |
cca310da JB |
9223 | for (; t < mock_input; t++) |
9224 | { | |
f2647d04 DL |
9225 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9226 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9227 | echo_char (keybuf[t]); |
cca310da JB |
9228 | add_command_key (keybuf[t]); |
9229 | } | |
07f76a14 | 9230 | |
7d18f9ae RS |
9231 | |
9232 | ||
2dc00208 | 9233 | UNGCPRO; |
284f4730 JB |
9234 | return t; |
9235 | } | |
9236 | ||
d5eecefb | 9237 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9238 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9239 | The sequence is sufficient to specify a non-prefix command in the | |
9240 | current local and global maps. | |
9241 | ||
9242 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9243 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9244 | as a continuation of the previous key. | |
9245 | ||
9246 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9247 | convert the last event to lower case. (Normally any upper case event | |
9248 | is converted to lower case if the original event is undefined and the lower | |
9249 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9250 | a key sequence to be defined. | |
9251 | ||
9252 | A C-g typed while in this function is treated like any other character, | |
9253 | and `quit-flag' is not set. | |
9254 | ||
9255 | If the key sequence starts with a mouse click, then the sequence is read | |
9256 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9257 | of the selected window as normal. | |
9258 | ||
9259 | `read-key-sequence' drops unbound button-down events, since you normally | |
9260 | only care about the click or drag events which follow them. If a drag | |
9261 | or multi-click event is unbound, but the corresponding click event would | |
9262 | be bound, `read-key-sequence' turns the event into a click event at the | |
9263 | drag's starting position. This means that you don't have to distinguish | |
9264 | between click and drag, double, or triple events unless you want to. | |
9265 | ||
9266 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9267 | lines separating windows, and scroll bars with imaginary keys | |
9268 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9269 | ||
9270 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9271 | function will process a switch-frame event if the user switches frames | |
9272 | before typing anything. If the user switches frames in the middle of a | |
9273 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9274 | is nil, then the event will be put off until after the current key sequence. | |
9275 | ||
9276 | `read-key-sequence' checks `function-key-map' for function key | |
9277 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9278 | `function-key-map' for more details. | |
9279 | ||
9280 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9281 | that this key sequence is being read by something that will | |
9282 | read commands one after another. It should be nil if the caller | |
9283 | will read just one key sequence. */) | |
d5eecefb RS |
9284 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9285 | command_loop) | |
309b0fc8 | 9286 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9287 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9288 | { |
9289 | Lisp_Object keybuf[30]; | |
9290 | register int i; | |
03cee6ae | 9291 | struct gcpro gcpro1; |
aed13378 | 9292 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9293 | |
9294 | if (!NILP (prompt)) | |
b7826503 | 9295 | CHECK_STRING (prompt); |
284f4730 JB |
9296 | QUIT; |
9297 | ||
d5eecefb RS |
9298 | specbind (Qinput_method_exit_on_first_char, |
9299 | (NILP (command_loop) ? Qt : Qnil)); | |
9300 | specbind (Qinput_method_use_echo_area, | |
9301 | (NILP (command_loop) ? Qt : Qnil)); | |
9302 | ||
284f4730 JB |
9303 | bzero (keybuf, sizeof keybuf); |
9304 | GCPRO1 (keybuf[0]); | |
9305 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9306 | ||
daa37602 | 9307 | if (NILP (continue_echo)) |
6321824f RS |
9308 | { |
9309 | this_command_key_count = 0; | |
9310 | this_single_command_key_start = 0; | |
9311 | } | |
c0a58692 | 9312 | |
d0c48478 | 9313 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9314 | if (display_hourglass_p) |
9315 | cancel_hourglass (); | |
d0c48478 GM |
9316 | #endif |
9317 | ||
309b0fc8 | 9318 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9319 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9320 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9321 | |
ae18aa3b | 9322 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9323 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9324 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9325 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9326 | if (display_hourglass_p) |
9327 | start_hourglass (); | |
ae18aa3b | 9328 | #endif |
d0c48478 GM |
9329 | #endif |
9330 | ||
dcc408a0 RS |
9331 | if (i == -1) |
9332 | { | |
9333 | Vquit_flag = Qt; | |
9334 | QUIT; | |
9335 | } | |
284f4730 | 9336 | UNGCPRO; |
d5eecefb | 9337 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9338 | } |
e39da3d7 RS |
9339 | |
9340 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9341 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9342 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9343 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9344 | command_loop) | |
e39da3d7 | 9345 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9346 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9347 | { |
9348 | Lisp_Object keybuf[30]; | |
9349 | register int i; | |
03cee6ae | 9350 | struct gcpro gcpro1; |
aed13378 | 9351 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9352 | |
9353 | if (!NILP (prompt)) | |
b7826503 | 9354 | CHECK_STRING (prompt); |
e39da3d7 RS |
9355 | QUIT; |
9356 | ||
d5eecefb RS |
9357 | specbind (Qinput_method_exit_on_first_char, |
9358 | (NILP (command_loop) ? Qt : Qnil)); | |
9359 | specbind (Qinput_method_use_echo_area, | |
9360 | (NILP (command_loop) ? Qt : Qnil)); | |
9361 | ||
e39da3d7 RS |
9362 | bzero (keybuf, sizeof keybuf); |
9363 | GCPRO1 (keybuf[0]); | |
9364 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9365 | ||
9366 | if (NILP (continue_echo)) | |
9367 | { | |
9368 | this_command_key_count = 0; | |
9369 | this_single_command_key_start = 0; | |
9370 | } | |
9371 | ||
d0c48478 | 9372 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9373 | if (display_hourglass_p) |
9374 | cancel_hourglass (); | |
d0c48478 GM |
9375 | #endif |
9376 | ||
e39da3d7 RS |
9377 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9378 | prompt, ! NILP (dont_downcase_last), | |
9379 | ! NILP (can_return_switch_frame), 0); | |
9380 | ||
d0c48478 | 9381 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9382 | if (display_hourglass_p) |
9383 | start_hourglass (); | |
d0c48478 GM |
9384 | #endif |
9385 | ||
e39da3d7 RS |
9386 | if (i == -1) |
9387 | { | |
9388 | Vquit_flag = Qt; | |
9389 | QUIT; | |
9390 | } | |
9391 | UNGCPRO; | |
d5eecefb | 9392 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9393 | } |
284f4730 | 9394 | \f |
158f7532 | 9395 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9396 | doc: /* Execute CMD as an editor command. |
9397 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9398 | Optional second arg RECORD-FLAG non-nil | |
9399 | means unconditionally put this command in `command-history'. | |
9400 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9401 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9402 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9403 | The argument SPECIAL, if non-nil, means that this command is executing | |
9404 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9405 | (cmd, record_flag, keys, special) |
9406 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9407 | { |
9408 | register Lisp_Object final; | |
9409 | register Lisp_Object tem; | |
9410 | Lisp_Object prefixarg; | |
9411 | struct backtrace backtrace; | |
9412 | extern int debug_on_next_call; | |
9413 | ||
284f4730 JB |
9414 | debug_on_next_call = 0; |
9415 | ||
158f7532 RS |
9416 | if (NILP (special)) |
9417 | { | |
9418 | prefixarg = current_kboard->Vprefix_arg; | |
9419 | Vcurrent_prefix_arg = prefixarg; | |
9420 | current_kboard->Vprefix_arg = Qnil; | |
9421 | } | |
9422 | else | |
9423 | prefixarg = Qnil; | |
9424 | ||
8c18cbfb | 9425 | if (SYMBOLP (cmd)) |
284f4730 JB |
9426 | { |
9427 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9428 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9429 | { |
9430 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9431 | if (!NILP (tem)) | |
9432 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9433 | } | |
284f4730 JB |
9434 | } |
9435 | ||
01e26217 | 9436 | while (1) |
284f4730 | 9437 | { |
ffd56f97 | 9438 | final = Findirect_function (cmd); |
284f4730 JB |
9439 | |
9440 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9441 | { |
9442 | struct gcpro gcpro1, gcpro2; | |
9443 | ||
9444 | GCPRO2 (cmd, prefixarg); | |
9445 | do_autoload (final, cmd); | |
9446 | UNGCPRO; | |
9447 | } | |
284f4730 JB |
9448 | else |
9449 | break; | |
9450 | } | |
9451 | ||
8c18cbfb | 9452 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9453 | { |
9454 | /* If requested, place the macro in the command history. For | |
9455 | other sorts of commands, call-interactively takes care of | |
9456 | this. */ | |
e57d8fd8 | 9457 | if (!NILP (record_flag)) |
f4385381 RS |
9458 | { |
9459 | Vcommand_history | |
9460 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9461 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9462 | Vcommand_history); | |
9463 | ||
9464 | /* Don't keep command history around forever. */ | |
9465 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9466 | { | |
9467 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9468 | if (CONSP (tem)) | |
f3fbd155 | 9469 | XSETCDR (tem, Qnil); |
f4385381 RS |
9470 | } |
9471 | } | |
284f4730 | 9472 | |
caa06051 | 9473 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 9474 | } |
f4385381 | 9475 | |
8c18cbfb | 9476 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9477 | { |
9478 | backtrace.next = backtrace_list; | |
9479 | backtrace_list = &backtrace; | |
9480 | backtrace.function = &Qcall_interactively; | |
9481 | backtrace.args = &cmd; | |
9482 | backtrace.nargs = 1; | |
9483 | backtrace.evalargs = 0; | |
9484 | ||
e57d8fd8 | 9485 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9486 | |
9487 | backtrace_list = backtrace.next; | |
9488 | return tem; | |
9489 | } | |
9490 | return Qnil; | |
9491 | } | |
c970a760 GM |
9492 | |
9493 | ||
284f4730 | 9494 | \f |
284f4730 | 9495 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9496 | 1, 1, "P", |
9497 | doc: /* Read function name, then read its arguments and call it. */) | |
9498 | (prefixarg) | |
284f4730 JB |
9499 | Lisp_Object prefixarg; |
9500 | { | |
9501 | Lisp_Object function; | |
9502 | char buf[40]; | |
2e1a49ad SM |
9503 | int saved_last_point_position; |
9504 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9505 | Lisp_Object bindings, value; |
2e1a49ad | 9506 | struct gcpro gcpro1, gcpro2, gcpro3; |
284f4730 | 9507 | |
b0f2a7bf KH |
9508 | saved_keys = Fvector (this_command_key_count, |
9509 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9510 | saved_last_point_position_buffer = last_point_position_buffer; |
9511 | saved_last_point_position = last_point_position; | |
284f4730 | 9512 | buf[0] = 0; |
2e1a49ad | 9513 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9514 | |
9515 | if (EQ (prefixarg, Qminus)) | |
9516 | strcpy (buf, "- "); | |
7539e11f | 9517 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9518 | strcpy (buf, "C-u "); |
7539e11f | 9519 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9520 | { |
9521 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9522 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9523 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9524 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9525 | else |
9526 | abort (); | |
9527 | } | |
8c18cbfb | 9528 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9529 | { |
9530 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9531 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9532 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9533 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9534 | else |
9535 | abort (); | |
9536 | } | |
284f4730 JB |
9537 | |
9538 | /* This isn't strictly correct if execute-extended-command | |
9539 | is bound to anything else. Perhaps it should use | |
9540 | this_command_keys? */ | |
9541 | strcat (buf, "M-x "); | |
9542 | ||
9543 | /* Prompt with buf, and then read a string, completing from and | |
9544 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9545 | any initial input. Save the command read on the extended-command |
03b4122a | 9546 | history list. */ |
284f4730 JB |
9547 | function = Fcompleting_read (build_string (buf), |
9548 | Vobarray, Qcommandp, | |
4328577a KH |
9549 | Qt, Qnil, Qextended_command_history, Qnil, |
9550 | Qnil); | |
284f4730 | 9551 | |
d5db4077 | 9552 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9553 | error ("No command name given"); |
9554 | ||
1113d9db JB |
9555 | /* Set this_command_keys to the concatenation of saved_keys and |
9556 | function, followed by a RET. */ | |
284f4730 | 9557 | { |
b0f2a7bf | 9558 | Lisp_Object *keys; |
284f4730 | 9559 | int i; |
284f4730 | 9560 | |
1113d9db | 9561 | this_command_key_count = 0; |
6321824f | 9562 | this_single_command_key_start = 0; |
1113d9db | 9563 | |
b0f2a7bf KH |
9564 | keys = XVECTOR (saved_keys)->contents; |
9565 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9566 | add_command_key (keys[i]); | |
1113d9db | 9567 | |
1b049b51 | 9568 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9569 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9570 | |
301738ed | 9571 | add_command_key (make_number ('\015')); |
284f4730 JB |
9572 | } |
9573 | ||
2e1a49ad SM |
9574 | last_point_position = saved_last_point_position; |
9575 | last_point_position_buffer = saved_last_point_position_buffer; | |
9576 | ||
284f4730 JB |
9577 | UNGCPRO; |
9578 | ||
0a7f1fc0 | 9579 | function = Fintern (function, Qnil); |
d8bcf58e | 9580 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9581 | Vthis_command = function; |
9582 | real_this_command = function; | |
284f4730 | 9583 | |
6526ab49 RS |
9584 | /* If enabled, show which key runs this command. */ |
9585 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9586 | && NILP (Vexecuting_macro) |
6526ab49 | 9587 | && SYMBOLP (function)) |
5434fce6 | 9588 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9589 | Qt, Qnil, Qnil); |
5434fce6 RS |
9590 | else |
9591 | bindings = Qnil; | |
6526ab49 | 9592 | |
5434fce6 RS |
9593 | value = Qnil; |
9594 | GCPRO2 (bindings, value); | |
9595 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9596 | |
5434fce6 | 9597 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9598 | if (!NILP (bindings) |
ee112567 KH |
9599 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9600 | Qmouse_movement))) | |
5434fce6 RS |
9601 | { |
9602 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9603 | int delay_time; |
985f9f66 | 9604 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9605 | /* This command displayed something in the echo area; |
9606 | so wait a few seconds, then display our suggestion message. */ | |
9607 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9608 | ? XINT (Vsuggest_key_bindings) : 2); | |
9609 | else | |
9610 | /* This command left the echo area empty, | |
9611 | so display our message immediately. */ | |
9612 | delay_time = 0; | |
9613 | ||
9614 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9615 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9616 | { |
5434fce6 RS |
9617 | Lisp_Object binding; |
9618 | char *newmessage; | |
985f9f66 | 9619 | int message_p = push_message (); |
331379bf | 9620 | int count = SPECPDL_INDEX (); |
5434fce6 | 9621 | |
65efd7da | 9622 | record_unwind_protect (pop_message_unwind, Qnil); |
5434fce6 RS |
9623 | binding = Fkey_description (bindings); |
9624 | ||
9625 | newmessage | |
d5db4077 KR |
9626 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
9627 | + SBYTES (binding) | |
5434fce6 | 9628 | + 100); |
3ababa60 | 9629 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
9630 | SDATA (SYMBOL_NAME (function)), |
9631 | SDATA (binding)); | |
301738ed RS |
9632 | message2_nolog (newmessage, |
9633 | strlen (newmessage), | |
9634 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9635 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9636 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9637 | Qnil, Qnil)) |
9638 | && message_p) | |
9639 | restore_message (); | |
9640 | ||
c970a760 | 9641 | unbind_to (count, Qnil); |
6526ab49 RS |
9642 | } |
9643 | } | |
9644 | ||
5434fce6 | 9645 | RETURN_UNGCPRO (value); |
284f4730 | 9646 | } |
6526ab49 | 9647 | |
284f4730 | 9648 | \f |
d9d4c147 | 9649 | /* Return nonzero if input events are pending. */ |
284f4730 | 9650 | |
dfcf069d | 9651 | int |
284f4730 JB |
9652 | detect_input_pending () |
9653 | { | |
9654 | if (!input_pending) | |
d9d4c147 KH |
9655 | get_input_pending (&input_pending, 0); |
9656 | ||
9657 | return input_pending; | |
9658 | } | |
9659 | ||
b1878f45 | 9660 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9661 | |
dfcf069d | 9662 | int |
87dd9b9b RS |
9663 | detect_input_pending_run_timers (do_display) |
9664 | int do_display; | |
d9d4c147 | 9665 | { |
87dd9b9b RS |
9666 | int old_timers_run = timers_run; |
9667 | ||
d9d4c147 KH |
9668 | if (!input_pending) |
9669 | get_input_pending (&input_pending, 1); | |
284f4730 | 9670 | |
87dd9b9b | 9671 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9672 | { |
3007ebfb | 9673 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9674 | /* The following fixes a bug when using lazy-lock with |
9675 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9676 | from an idle timer function. The symptom of the bug is that | |
9677 | the cursor sometimes doesn't become visible until the next X | |
9678 | event is processed. --gerd. */ | |
9679 | if (rif) | |
9680 | rif->flush_display (NULL); | |
9681 | } | |
87dd9b9b | 9682 | |
284f4730 JB |
9683 | return input_pending; |
9684 | } | |
9685 | ||
ffd56f97 JB |
9686 | /* This is called in some cases before a possible quit. |
9687 | It cases the next call to detect_input_pending to recompute input_pending. | |
9688 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9689 | |
9690 | void | |
ffd56f97 JB |
9691 | clear_input_pending () |
9692 | { | |
9693 | input_pending = 0; | |
9694 | } | |
9695 | ||
b1878f45 RS |
9696 | /* Return nonzero if there are pending requeued events. |
9697 | This isn't used yet. The hope is to make wait_reading_process_input | |
27fd22dc | 9698 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9699 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9700 | to do in that case. It isn't trivial. */ | |
9701 | ||
dfcf069d | 9702 | int |
b1878f45 RS |
9703 | requeued_events_pending_p () |
9704 | { | |
9705 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9706 | } | |
9707 | ||
9708 | ||
284f4730 | 9709 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9710 | doc: /* Return t if command input is currently available with no wait. |
9711 | Actually, the value is nil only if we can be sure that no input is available; | |
9712 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9713 | () |
284f4730 | 9714 | { |
24597608 | 9715 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9716 | return (Qt); |
9717 | ||
20057d52 | 9718 | get_filtered_input_pending (&input_pending, 1, 1); |
d9d4c147 | 9719 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
9720 | } |
9721 | ||
9722 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
9723 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
9724 | () | |
284f4730 | 9725 | { |
5160df46 | 9726 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9727 | Lisp_Object val; |
9728 | ||
9729 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9730 | return Fvector (total_keys, keys); |
284f4730 JB |
9731 | else |
9732 | { | |
5160df46 JB |
9733 | val = Fvector (NUM_RECENT_KEYS, keys); |
9734 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9735 | XVECTOR (val)->contents, |
9736 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9737 | bcopy (keys, |
284f4730 JB |
9738 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9739 | recent_keys_index * sizeof (Lisp_Object)); | |
9740 | return val; | |
9741 | } | |
9742 | } | |
9743 | ||
9744 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 9745 | doc: /* Return the key sequence that invoked this command. |
92501652 | 9746 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 9747 | the last key sequence that has been read. |
4707d2d0 PJ |
9748 | The value is a string or a vector. */) |
9749 | () | |
284f4730 | 9750 | { |
86e5706b RS |
9751 | return make_event_array (this_command_key_count, |
9752 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9753 | } |
9754 | ||
e39da3d7 | 9755 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
9756 | doc: /* Return the key sequence that invoked this command, as a vector. |
9757 | However, if the command has called `read-key-sequence', it returns | |
4052e7bb | 9758 | the last key sequence that has been read. */) |
4707d2d0 | 9759 | () |
e39da3d7 RS |
9760 | { |
9761 | return Fvector (this_command_key_count, | |
9762 | XVECTOR (this_command_keys)->contents); | |
9763 | } | |
9764 | ||
6321824f RS |
9765 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9766 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 9767 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
9768 | More generally, it returns the last key sequence read, either by |
9769 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9770 | Unlike `this-command-keys', this function's value |
9771 | does not include prefix arguments. | |
9772 | The value is always a vector. */) | |
9773 | () | |
6321824f | 9774 | { |
e39da3d7 RS |
9775 | return Fvector (this_command_key_count |
9776 | - this_single_command_key_start, | |
9777 | (XVECTOR (this_command_keys)->contents | |
9778 | + this_single_command_key_start)); | |
6321824f RS |
9779 | } |
9780 | ||
7d18f9ae RS |
9781 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9782 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 9783 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
9784 | More generally, it returns the last key sequence read, either by |
9785 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9786 | Unlike `this-single-command-keys', this function's value |
9787 | shows the events before all translations (except for input methods). | |
9788 | The value is always a vector. */) | |
9789 | () | |
7d18f9ae RS |
9790 | { |
9791 | return Fvector (raw_keybuf_count, | |
9792 | (XVECTOR (raw_keybuf)->contents)); | |
9793 | } | |
9794 | ||
71918b75 | 9795 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 PJ |
9796 | Sreset_this_command_lengths, 0, 0, 0, |
9797 | doc: /* Used for complicated reasons in `universal-argument-other-key'. | |
9798 | ||
9799 | `universal-argument-other-key' rereads the event just typed. | |
9800 | It then gets translated through `function-key-map'. | |
9801 | The translated event gets included in the echo area and in | |
9802 | the value of `this-command-keys' in addition to the raw original event. | |
9803 | That is not right. | |
9804 | ||
9805 | Calling this function directs the translated event to replace | |
9806 | the original event, so that only one version of the event actually | |
9807 | appears in the echo area and in the value of `this-command-keys'. */) | |
9808 | () | |
71918b75 RS |
9809 | { |
9810 | before_command_restore_flag = 1; | |
9811 | before_command_key_count_1 = before_command_key_count; | |
9812 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9813 | return Qnil; |
71918b75 RS |
9814 | } |
9815 | ||
82e6e5af | 9816 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 9817 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 9818 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
9819 | Also clear the record of the last 100 events, unless optional arg |
9820 | KEEP-RECORD is non-nil. */) | |
9821 | (keep_record) | |
9822 | Lisp_Object keep_record; | |
82e6e5af | 9823 | { |
fb0dde6c GM |
9824 | int i; |
9825 | ||
82e6e5af | 9826 | this_command_key_count = 0; |
fb0dde6c | 9827 | |
ab1959fc KS |
9828 | if (NILP (keep_record)) |
9829 | { | |
9830 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9831 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9832 | total_keys = 0; | |
9833 | recent_keys_index = 0; | |
9834 | } | |
82e6e5af RS |
9835 | return Qnil; |
9836 | } | |
9837 | ||
284f4730 | 9838 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
9839 | doc: /* Return the current depth in recursive edits. */) |
9840 | () | |
284f4730 JB |
9841 | { |
9842 | Lisp_Object temp; | |
bb9e9bed | 9843 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9844 | return temp; |
9845 | } | |
9846 | ||
9847 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
9848 | "FOpen dribble file: ", |
9849 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
9850 | If FILE is nil, close any open dribble file. */) | |
9851 | (file) | |
284f4730 JB |
9852 | Lisp_Object file; |
9853 | { | |
6cb52def | 9854 | if (dribble) |
284f4730 | 9855 | { |
6cb52def KH |
9856 | fclose (dribble); |
9857 | dribble = 0; | |
284f4730 | 9858 | } |
6cb52def | 9859 | if (!NILP (file)) |
284f4730 JB |
9860 | { |
9861 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 9862 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
9863 | if (dribble == 0) |
9864 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9865 | } |
9866 | return Qnil; | |
9867 | } | |
9868 | ||
9869 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 9870 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 9871 | Also end any kbd macro being defined. */) |
4707d2d0 | 9872 | () |
284f4730 | 9873 | { |
2b17d5ed KS |
9874 | if (!NILP (current_kboard->defining_kbd_macro)) |
9875 | { | |
9876 | /* Discard the last command from the macro. */ | |
9877 | Fcancel_kbd_macro_events (); | |
9878 | end_kbd_macro (); | |
9879 | } | |
9880 | ||
284f4730 JB |
9881 | update_mode_lines++; |
9882 | ||
24597608 | 9883 | Vunread_command_events = Qnil; |
86e5706b | 9884 | unread_command_char = -1; |
284f4730 JB |
9885 | |
9886 | discard_tty_input (); | |
9887 | ||
7ee32cda | 9888 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 9889 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
9890 | input_pending = 0; |
9891 | ||
9892 | return Qnil; | |
9893 | } | |
9894 | \f | |
9895 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
9896 | doc: /* Stop Emacs and return to superior process. You can resume later. |
9897 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
9898 | control, run a subshell instead. | |
9899 | ||
9900 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
9901 | to be read as terminal input by Emacs's parent, after suspension. | |
9902 | ||
9903 | Before suspending, run the normal hook `suspend-hook'. | |
9904 | After resumption run the normal hook `suspend-resume-hook'. | |
9905 | ||
9906 | Some operating systems cannot stop the Emacs process and resume it later. | |
9907 | On such systems, Emacs starts a subshell instead of suspending. */) | |
9908 | (stuffstring) | |
284f4730 JB |
9909 | Lisp_Object stuffstring; |
9910 | { | |
aed13378 | 9911 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9912 | int old_height, old_width; |
9913 | int width, height; | |
03cee6ae | 9914 | struct gcpro gcpro1; |
284f4730 JB |
9915 | |
9916 | if (!NILP (stuffstring)) | |
b7826503 | 9917 | CHECK_STRING (stuffstring); |
284f4730 | 9918 | |
1e95ed28 JB |
9919 | /* Run the functions in suspend-hook. */ |
9920 | if (!NILP (Vrun_hooks)) | |
9921 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9922 | |
b7d2ebbf | 9923 | GCPRO1 (stuffstring); |
ff11dfa1 | 9924 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9925 | reset_sys_modes (); |
9926 | /* sys_suspend can get an error if it tries to fork a subshell | |
9927 | and the system resources aren't available for that. */ | |
91a0da02 | 9928 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9929 | Qnil); |
284f4730 | 9930 | stuff_buffered_input (stuffstring); |
8026024c KH |
9931 | if (cannot_suspend) |
9932 | sys_subshell (); | |
9933 | else | |
9934 | sys_suspend (); | |
284f4730 JB |
9935 | unbind_to (count, Qnil); |
9936 | ||
9937 | /* Check if terminal/window size has changed. | |
9938 | Note that this is not useful when we are running directly | |
9939 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9940 | get_frame_size (&width, &height); |
284f4730 | 9941 | if (width != old_width || height != old_height) |
788f89eb | 9942 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9943 | |
1e95ed28 | 9944 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9945 | if (!NILP (Vrun_hooks)) |
9946 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9947 | |
284f4730 JB |
9948 | UNGCPRO; |
9949 | return Qnil; | |
9950 | } | |
9951 | ||
9952 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9953 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9954 | |
07a59269 | 9955 | void |
284f4730 JB |
9956 | stuff_buffered_input (stuffstring) |
9957 | Lisp_Object stuffstring; | |
9958 | { | |
284f4730 | 9959 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9960 | #ifdef BSD_SYSTEM |
284f4730 | 9961 | #ifndef BSD4_1 |
612b78ef | 9962 | register unsigned char *p; |
612b78ef | 9963 | |
8c18cbfb | 9964 | if (STRINGP (stuffstring)) |
284f4730 JB |
9965 | { |
9966 | register int count; | |
9967 | ||
d5db4077 KR |
9968 | p = SDATA (stuffstring); |
9969 | count = SBYTES (stuffstring); | |
284f4730 JB |
9970 | while (count-- > 0) |
9971 | stuff_char (*p++); | |
9972 | stuff_char ('\n'); | |
9973 | } | |
da8f7368 | 9974 | |
284f4730 | 9975 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 9976 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9977 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9978 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9979 | { |
da8f7368 GM |
9980 | int idx; |
9981 | ||
beecf6a1 KH |
9982 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9983 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 9984 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 9985 | stuff_char (kbd_fetch_ptr->code); |
da8f7368 | 9986 | |
3b8f9651 | 9987 | kbd_fetch_ptr->kind = NO_EVENT; |
da8f7368 GM |
9988 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
9989 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
9990 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 9991 | } |
da8f7368 | 9992 | |
284f4730 JB |
9993 | input_pending = 0; |
9994 | #endif | |
6df54671 | 9995 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9996 | } |
9997 | \f | |
dfcf069d | 9998 | void |
ffd56f97 JB |
9999 | set_waiting_for_input (time_to_clear) |
10000 | EMACS_TIME *time_to_clear; | |
284f4730 | 10001 | { |
ffd56f97 | 10002 | input_available_clear_time = time_to_clear; |
284f4730 JB |
10003 | |
10004 | /* Tell interrupt_signal to throw back to read_char, */ | |
10005 | waiting_for_input = 1; | |
10006 | ||
10007 | /* If interrupt_signal was called before and buffered a C-g, | |
10008 | make it run again now, to avoid timing error. */ | |
10009 | if (!NILP (Vquit_flag)) | |
10010 | quit_throw_to_read_char (); | |
284f4730 JB |
10011 | } |
10012 | ||
07a59269 | 10013 | void |
284f4730 JB |
10014 | clear_waiting_for_input () |
10015 | { | |
10016 | /* Tell interrupt_signal not to throw back to read_char, */ | |
10017 | waiting_for_input = 0; | |
ffd56f97 | 10018 | input_available_clear_time = 0; |
284f4730 JB |
10019 | } |
10020 | ||
27fd22dc | 10021 | /* This routine is called at interrupt level in response to C-g. |
d4e68eea GM |
10022 | |
10023 | If interrupt_input, this is the handler for SIGINT. Otherwise, it | |
10024 | is called from kbd_buffer_store_event, in handling SIGIO or | |
10025 | SIGTINT. | |
284f4730 | 10026 | |
d4e68eea GM |
10027 | If `waiting_for_input' is non zero, then unless `echoing' is |
10028 | nonzero, immediately throw back to read_char. | |
284f4730 | 10029 | |
d4e68eea GM |
10030 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
10031 | eval to throw, when it gets a chance. If quit-flag is already | |
10032 | non-nil, it stops the job right away. */ | |
284f4730 JB |
10033 | |
10034 | SIGTYPE | |
91c049d4 RS |
10035 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10036 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
10037 | { |
10038 | char c; | |
10039 | /* Must preserve main program's value of errno. */ | |
10040 | int old_errno = errno; | |
788f89eb | 10041 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 10042 | |
5970a8cb | 10043 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
10044 | if (!read_socket_hook && NILP (Vwindow_system)) |
10045 | { | |
10046 | /* USG systems forget handlers when they are used; | |
10047 | must reestablish each time */ | |
10048 | signal (SIGINT, interrupt_signal); | |
10049 | signal (SIGQUIT, interrupt_signal); | |
10050 | } | |
284f4730 JB |
10051 | #endif /* USG */ |
10052 | ||
10053 | cancel_echoing (); | |
10054 | ||
31e4e97b | 10055 | if (!NILP (Vquit_flag) |
788f89eb | 10056 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 10057 | { |
31e4e97b EZ |
10058 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10059 | another SIGINT, it might be harmful due to non-reentrancy | |
10060 | in I/O functions. */ | |
10061 | sigblock (sigmask (SIGINT)); | |
10062 | ||
284f4730 JB |
10063 | fflush (stdout); |
10064 | reset_sys_modes (); | |
31e4e97b | 10065 | |
284f4730 JB |
10066 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10067 | /* | |
10068 | * On systems which can suspend the current process and return to the original | |
10069 | * shell, this command causes the user to end up back at the shell. | |
10070 | * The "Auto-save" and "Abort" questions are not asked until | |
10071 | * the user elects to return to emacs, at which point he can save the current | |
10072 | * job and either dump core or continue. | |
10073 | */ | |
10074 | sys_suspend (); | |
10075 | #else | |
10076 | #ifdef VMS | |
10077 | if (sys_suspend () == -1) | |
10078 | { | |
10079 | printf ("Not running as a subprocess;\n"); | |
10080 | printf ("you can continue or abort.\n"); | |
10081 | } | |
10082 | #else /* not VMS */ | |
10083 | /* Perhaps should really fork an inferior shell? | |
10084 | But that would not provide any way to get back | |
10085 | to the original shell, ever. */ | |
10086 | printf ("No support for stopping a process on this operating system;\n"); | |
10087 | printf ("you can continue or abort.\n"); | |
10088 | #endif /* not VMS */ | |
10089 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
10090 | #ifdef MSDOS |
10091 | /* We must remain inside the screen area when the internal terminal | |
10092 | is used. Note that [Enter] is not echoed by dos. */ | |
10093 | cursor_to (0, 0); | |
10094 | #endif | |
118d6ca9 RS |
10095 | /* It doesn't work to autosave while GC is in progress; |
10096 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10097 | if (!gc_in_progress) | |
9fd7d808 | 10098 | { |
118d6ca9 RS |
10099 | printf ("Auto-save? (y or n) "); |
10100 | fflush (stdout); | |
10101 | if (((c = getchar ()) & ~040) == 'Y') | |
10102 | { | |
10103 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10104 | #ifdef MSDOS |
118d6ca9 | 10105 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10106 | #else /* not MSDOS */ |
118d6ca9 | 10107 | printf ("Auto-save done\n"); |
80e4aa30 | 10108 | #endif /* not MSDOS */ |
118d6ca9 RS |
10109 | } |
10110 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10111 | } |
118d6ca9 RS |
10112 | else |
10113 | { | |
10114 | /* During GC, it must be safe to reenable quitting again. */ | |
10115 | Vinhibit_quit = Qnil; | |
10116 | #ifdef MSDOS | |
10117 | printf ("\r\n"); | |
10118 | #endif /* not MSDOS */ | |
10119 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10120 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10121 | fflush (stdout); | |
10122 | } | |
10123 | ||
80e4aa30 RS |
10124 | #ifdef MSDOS |
10125 | printf ("\r\nAbort? (y or n) "); | |
10126 | #else /* not MSDOS */ | |
284f4730 JB |
10127 | #ifdef VMS |
10128 | printf ("Abort (and enter debugger)? (y or n) "); | |
10129 | #else /* not VMS */ | |
10130 | printf ("Abort (and dump core)? (y or n) "); | |
10131 | #endif /* not VMS */ | |
80e4aa30 | 10132 | #endif /* not MSDOS */ |
284f4730 JB |
10133 | fflush (stdout); |
10134 | if (((c = getchar ()) & ~040) == 'Y') | |
10135 | abort (); | |
10136 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10137 | #ifdef MSDOS |
10138 | printf ("\r\nContinuing...\r\n"); | |
10139 | #else /* not MSDOS */ | |
284f4730 | 10140 | printf ("Continuing...\n"); |
80e4aa30 | 10141 | #endif /* not MSDOS */ |
284f4730 JB |
10142 | fflush (stdout); |
10143 | init_sys_modes (); | |
31e4e97b | 10144 | sigfree (); |
284f4730 JB |
10145 | } |
10146 | else | |
10147 | { | |
10148 | /* If executing a function that wants to be interrupted out of | |
10149 | and the user has not deferred quitting by binding `inhibit-quit' | |
10150 | then quit right away. */ | |
10151 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10152 | { | |
e39da3d7 RS |
10153 | struct gl_state_s saved; |
10154 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10155 | ||
284f4730 JB |
10156 | immediate_quit = 0; |
10157 | sigfree (); | |
e39da3d7 RS |
10158 | saved = gl_state; |
10159 | GCPRO4 (saved.object, saved.global_code, | |
10160 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10161 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10162 | gl_state = saved; |
10163 | UNGCPRO; | |
284f4730 JB |
10164 | } |
10165 | else | |
10166 | /* Else request quit when it's safe */ | |
10167 | Vquit_flag = Qt; | |
10168 | } | |
10169 | ||
10170 | if (waiting_for_input && !echoing) | |
10171 | quit_throw_to_read_char (); | |
10172 | ||
10173 | errno = old_errno; | |
10174 | } | |
10175 | ||
10176 | /* Handle a C-g by making read_char return C-g. */ | |
10177 | ||
07a59269 | 10178 | void |
284f4730 JB |
10179 | quit_throw_to_read_char () |
10180 | { | |
284f4730 JB |
10181 | sigfree (); |
10182 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10183 | clear_waiting_for_input (); |
284f4730 JB |
10184 | input_pending = 0; |
10185 | ||
24597608 | 10186 | Vunread_command_events = Qnil; |
86e5706b | 10187 | unread_command_char = -1; |
284f4730 | 10188 | |
087feab3 RS |
10189 | #if 0 /* Currently, sit_for is called from read_char without turning |
10190 | off polling. And that can call set_waiting_for_input. | |
10191 | It seems to be harmless. */ | |
e6b01c14 JB |
10192 | #ifdef POLL_FOR_INPUT |
10193 | /* May be > 1 if in recursive minibuffer. */ | |
10194 | if (poll_suppress_count == 0) | |
10195 | abort (); | |
10196 | #endif | |
087feab3 | 10197 | #endif |
4c52b668 | 10198 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10199 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10200 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10201 | 0, 0); |
e6b01c14 | 10202 | |
284f4730 JB |
10203 | _longjmp (getcjmp, 1); |
10204 | } | |
10205 | \f | |
10206 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10207 | doc: /* Set mode of reading keyboard input. |
10208 | First arg INTERRUPT non-nil means use input interrupts; | |
10209 | nil means use CBREAK mode. | |
10210 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10211 | (no effect except in CBREAK mode). | |
10212 | Third arg META t means accept 8-bit input (for a Meta key). | |
10213 | META nil means ignore the top bit, on the assumption it is parity. | |
10214 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10215 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10216 | See also `current-input-mode'. */) | |
10217 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10218 | Lisp_Object interrupt, flow, meta, quit; |
10219 | { | |
10220 | if (!NILP (quit) | |
8c18cbfb | 10221 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10222 | error ("set-input-mode: QUIT must be an ASCII character"); |
10223 | ||
10224 | #ifdef POLL_FOR_INPUT | |
10225 | stop_polling (); | |
10226 | #endif | |
284f4730 | 10227 | |
07de30b9 | 10228 | #ifndef DOS_NT |
2ee250ec | 10229 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10230 | reset_sys_modes (); |
2ee250ec RS |
10231 | #endif |
10232 | ||
284f4730 JB |
10233 | #ifdef SIGIO |
10234 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10235 | if (read_socket_hook) |
9a0f60bb KH |
10236 | { |
10237 | /* When using X, don't give the user a real choice, | |
10238 | because we haven't implemented the mechanisms to support it. */ | |
10239 | #ifdef NO_SOCK_SIGIO | |
10240 | interrupt_input = 0; | |
10241 | #else /* not NO_SOCK_SIGIO */ | |
10242 | interrupt_input = 1; | |
284f4730 | 10243 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10244 | } |
10245 | else | |
284f4730 JB |
10246 | interrupt_input = !NILP (interrupt); |
10247 | #else /* not SIGIO */ | |
10248 | interrupt_input = 0; | |
10249 | #endif /* not SIGIO */ | |
9a0f60bb | 10250 | |
284f4730 JB |
10251 | /* Our VMS input only works by interrupts, as of now. */ |
10252 | #ifdef VMS | |
10253 | interrupt_input = 1; | |
10254 | #endif | |
9a0f60bb | 10255 | |
284f4730 | 10256 | flow_control = !NILP (flow); |
b04904fb RS |
10257 | if (NILP (meta)) |
10258 | meta_key = 0; | |
10259 | else if (EQ (meta, Qt)) | |
10260 | meta_key = 1; | |
10261 | else | |
10262 | meta_key = 2; | |
284f4730 JB |
10263 | if (!NILP (quit)) |
10264 | /* Don't let this value be out of range. */ | |
10265 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10266 | ||
07de30b9 | 10267 | #ifndef DOS_NT |
284f4730 | 10268 | init_sys_modes (); |
2ee250ec | 10269 | #endif |
34f04431 RS |
10270 | |
10271 | #ifdef POLL_FOR_INPUT | |
10272 | poll_suppress_count = 1; | |
10273 | start_polling (); | |
10274 | #endif | |
284f4730 JB |
10275 | return Qnil; |
10276 | } | |
80645119 JB |
10277 | |
10278 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10279 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10280 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10281 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10282 | nil, Emacs is using CBREAK mode. | |
10283 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10284 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10285 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10286 | META nil means ignoring the top bit, on the assumption it is parity. | |
10287 | META is neither t nor nil if accepting 8-bit input and using | |
10288 | all 8 bits as the character code. | |
10289 | QUIT is the character Emacs currently uses to quit. | |
10290 | The elements of this list correspond to the arguments of | |
10291 | `set-input-mode'. */) | |
10292 | () | |
80645119 JB |
10293 | { |
10294 | Lisp_Object val[4]; | |
10295 | ||
10296 | val[0] = interrupt_input ? Qt : Qnil; | |
10297 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10298 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10299 | XSETFASTINT (val[3], quit_char); |
80645119 | 10300 | |
bf673a7a | 10301 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10302 | } |
10303 | ||
284f4730 | 10304 | \f |
6c6083a9 | 10305 | /* |
c5fdd383 | 10306 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10307 | */ |
10308 | void | |
c5fdd383 KH |
10309 | init_kboard (kb) |
10310 | KBOARD *kb; | |
6c6083a9 | 10311 | { |
217258d5 | 10312 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10313 | kb->Vlast_command = Qnil; |
75045dcb | 10314 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10315 | kb->Vprefix_arg = Qnil; |
75045dcb | 10316 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10317 | kb->kbd_queue = Qnil; |
10318 | kb->kbd_queue_has_data = 0; | |
10319 | kb->immediate_echo = 0; | |
678e9d18 | 10320 | kb->echo_string = Qnil; |
c5fdd383 KH |
10321 | kb->echo_after_prompt = -1; |
10322 | kb->kbd_macro_buffer = 0; | |
10323 | kb->kbd_macro_bufsize = 0; | |
10324 | kb->defining_kbd_macro = Qnil; | |
10325 | kb->Vlast_kbd_macro = Qnil; | |
10326 | kb->reference_count = 0; | |
7c97ffdc | 10327 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10328 | kb->system_key_syms = Qnil; |
9ba47203 | 10329 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10330 | } |
10331 | ||
10332 | /* | |
c5fdd383 | 10333 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10334 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10335 | * it a second time. |
10336 | */ | |
e50b8090 | 10337 | static void |
c5fdd383 KH |
10338 | wipe_kboard (kb) |
10339 | KBOARD *kb; | |
6c6083a9 | 10340 | { |
c5fdd383 KH |
10341 | if (kb->kbd_macro_buffer) |
10342 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10343 | } |
10344 | ||
e50b8090 | 10345 | #ifdef MULTI_KBOARD |
a122a38e GM |
10346 | |
10347 | /* Free KB and memory referenced from it. */ | |
10348 | ||
e50b8090 KH |
10349 | void |
10350 | delete_kboard (kb) | |
a122a38e | 10351 | KBOARD *kb; |
e50b8090 KH |
10352 | { |
10353 | KBOARD **kbp; | |
a122a38e | 10354 | |
e50b8090 KH |
10355 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10356 | if (*kbp == NULL) | |
10357 | abort (); | |
10358 | *kbp = kb->next_kboard; | |
a122a38e GM |
10359 | |
10360 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10361 | if (kb == current_kboard |
10362 | && FRAMEP (selected_frame) | |
10363 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10364 | { |
18f534df | 10365 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10366 | if (current_kboard == kb) |
10367 | abort (); | |
10368 | } | |
10369 | ||
e50b8090 KH |
10370 | wipe_kboard (kb); |
10371 | xfree (kb); | |
10372 | } | |
a122a38e GM |
10373 | |
10374 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10375 | |
dfcf069d | 10376 | void |
284f4730 JB |
10377 | init_keyboard () |
10378 | { | |
284f4730 JB |
10379 | /* This is correct before outermost invocation of the editor loop */ |
10380 | command_loop_level = -1; | |
10381 | immediate_quit = 0; | |
10382 | quit_char = Ctl ('g'); | |
24597608 | 10383 | Vunread_command_events = Qnil; |
86e5706b | 10384 | unread_command_char = -1; |
87dd9b9b | 10385 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10386 | total_keys = 0; |
9deb415a | 10387 | recent_keys_index = 0; |
beecf6a1 KH |
10388 | kbd_fetch_ptr = kbd_buffer; |
10389 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10390 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10391 | #ifdef HAVE_MOUSE |
a9d77f1f | 10392 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10393 | #endif |
284f4730 JB |
10394 | input_pending = 0; |
10395 | ||
4c52b668 KH |
10396 | /* This means that command_loop_1 won't try to select anything the first |
10397 | time through. */ | |
10398 | internal_last_event_frame = Qnil; | |
10399 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10400 | |
c5fdd383 | 10401 | #ifdef MULTI_KBOARD |
aaca43a1 | 10402 | current_kboard = initial_kboard; |
6c6083a9 | 10403 | #endif |
aaca43a1 | 10404 | wipe_kboard (current_kboard); |
c5fdd383 | 10405 | init_kboard (current_kboard); |
07d2b8de | 10406 | |
7a80a6f6 | 10407 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10408 | { |
10409 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10410 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10411 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10412 | SIGQUIT and we can't tell which one it will give us. */ | |
10413 | signal (SIGQUIT, interrupt_signal); | |
10414 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10415 | } |
284f4730 JB |
10416 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10417 | #ifdef SIGIO | |
7a80a6f6 RS |
10418 | if (!noninteractive) |
10419 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10420 | #endif /* SIGIO */ |
284f4730 JB |
10421 | |
10422 | /* Use interrupt input by default, if it works and noninterrupt input | |
10423 | has deficiencies. */ | |
10424 | ||
10425 | #ifdef INTERRUPT_INPUT | |
10426 | interrupt_input = 1; | |
10427 | #else | |
10428 | interrupt_input = 0; | |
10429 | #endif | |
10430 | ||
10431 | /* Our VMS input only works by interrupts, as of now. */ | |
10432 | #ifdef VMS | |
10433 | interrupt_input = 1; | |
10434 | #endif | |
10435 | ||
10436 | sigfree (); | |
10437 | dribble = 0; | |
10438 | ||
10439 | if (keyboard_init_hook) | |
10440 | (*keyboard_init_hook) (); | |
10441 | ||
10442 | #ifdef POLL_FOR_INPUT | |
10443 | poll_suppress_count = 1; | |
10444 | start_polling (); | |
10445 | #endif | |
10446 | } | |
10447 | ||
df0f2ba1 | 10448 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10449 | event header symbols and put properties on them. */ |
10450 | struct event_head { | |
10451 | Lisp_Object *var; | |
10452 | char *name; | |
10453 | Lisp_Object *kind; | |
10454 | }; | |
10455 | ||
10456 | struct event_head head_table[] = { | |
7406e988 PJ |
10457 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10458 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10459 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10460 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10461 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 PJ |
10462 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
10463 | {&Qselect_window, "select-window", &Qselect_window} | |
284f4730 JB |
10464 | }; |
10465 | ||
dfcf069d | 10466 | void |
284f4730 JB |
10467 | syms_of_keyboard () |
10468 | { | |
f0c1cc56 GM |
10469 | Vpre_help_message = Qnil; |
10470 | staticpro (&Vpre_help_message); | |
10471 | ||
8e1e4240 GM |
10472 | Vlispy_mouse_stem = build_string ("mouse"); |
10473 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10474 | |
9ea173e8 | 10475 | /* Tool-bars. */ |
7ee32cda GM |
10476 | QCimage = intern (":image"); |
10477 | staticpro (&QCimage); | |
10478 | ||
10479 | staticpro (&Qhelp_echo); | |
10480 | Qhelp_echo = intern ("help-echo"); | |
10481 | ||
e8886a1d RS |
10482 | staticpro (&item_properties); |
10483 | item_properties = Qnil; | |
10484 | ||
9ea173e8 GM |
10485 | staticpro (&tool_bar_item_properties); |
10486 | tool_bar_item_properties = Qnil; | |
10487 | staticpro (&tool_bar_items_vector); | |
10488 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10489 | |
d5eecefb RS |
10490 | staticpro (&real_this_command); |
10491 | real_this_command = Qnil; | |
10492 | ||
d925fb39 RS |
10493 | Qtimer_event_handler = intern ("timer-event-handler"); |
10494 | staticpro (&Qtimer_event_handler); | |
10495 | ||
2e894dab RS |
10496 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10497 | staticpro (&Qdisabled_command_hook); | |
10498 | ||
284f4730 JB |
10499 | Qself_insert_command = intern ("self-insert-command"); |
10500 | staticpro (&Qself_insert_command); | |
10501 | ||
10502 | Qforward_char = intern ("forward-char"); | |
10503 | staticpro (&Qforward_char); | |
10504 | ||
10505 | Qbackward_char = intern ("backward-char"); | |
10506 | staticpro (&Qbackward_char); | |
10507 | ||
10508 | Qdisabled = intern ("disabled"); | |
10509 | staticpro (&Qdisabled); | |
10510 | ||
e58aa385 RS |
10511 | Qundefined = intern ("undefined"); |
10512 | staticpro (&Qundefined); | |
10513 | ||
86e5706b RS |
10514 | Qpre_command_hook = intern ("pre-command-hook"); |
10515 | staticpro (&Qpre_command_hook); | |
10516 | ||
10517 | Qpost_command_hook = intern ("post-command-hook"); | |
10518 | staticpro (&Qpost_command_hook); | |
10519 | ||
59aadc81 RS |
10520 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10521 | staticpro (&Qpost_command_idle_hook); | |
10522 | ||
3ef14e46 RS |
10523 | Qdeferred_action_function = intern ("deferred-action-function"); |
10524 | staticpro (&Qdeferred_action_function); | |
10525 | ||
40932d1a RS |
10526 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10527 | staticpro (&Qcommand_hook_internal); | |
10528 | ||
284f4730 JB |
10529 | Qfunction_key = intern ("function-key"); |
10530 | staticpro (&Qfunction_key); | |
13b5e56c | 10531 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10532 | staticpro (&Qmouse_click); |
742fbed7 | 10533 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
10534 | Qmouse_wheel = intern ("mouse-wheel"); |
10535 | staticpro (&Qmouse_wheel); | |
742fbed7 AC |
10536 | #endif |
10537 | #ifdef WINDOWSNT | |
1161d367 GV |
10538 | Qlanguage_change = intern ("language-change"); |
10539 | staticpro (&Qlanguage_change); | |
07de30b9 | 10540 | #endif |
a24dc617 RS |
10541 | Qdrag_n_drop = intern ("drag-n-drop"); |
10542 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10543 | |
4ebc27a5 JD |
10544 | Qsave_session = intern ("save-session"); |
10545 | staticpro(&Qsave_session); | |
10546 | ||
5bf68f6e AS |
10547 | Qusr1_signal = intern ("usr1-signal"); |
10548 | staticpro (&Qusr1_signal); | |
10549 | Qusr2_signal = intern ("usr2-signal"); | |
10550 | staticpro (&Qusr2_signal); | |
10551 | ||
598a9fa7 JB |
10552 | Qmenu_enable = intern ("menu-enable"); |
10553 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10554 | Qmenu_alias = intern ("menu-alias"); |
10555 | staticpro (&Qmenu_alias); | |
10556 | QCenable = intern (":enable"); | |
10557 | staticpro (&QCenable); | |
10558 | QCvisible = intern (":visible"); | |
10559 | staticpro (&QCvisible); | |
7ee32cda GM |
10560 | QChelp = intern (":help"); |
10561 | staticpro (&QChelp); | |
e8886a1d RS |
10562 | QCfilter = intern (":filter"); |
10563 | staticpro (&QCfilter); | |
10564 | QCbutton = intern (":button"); | |
10565 | staticpro (&QCbutton); | |
74c1de23 RS |
10566 | QCkeys = intern (":keys"); |
10567 | staticpro (&QCkeys); | |
10568 | QCkey_sequence = intern (":key-sequence"); | |
10569 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10570 | QCtoggle = intern (":toggle"); |
10571 | staticpro (&QCtoggle); | |
10572 | QCradio = intern (":radio"); | |
10573 | staticpro (&QCradio); | |
598a9fa7 | 10574 | |
284f4730 JB |
10575 | Qmode_line = intern ("mode-line"); |
10576 | staticpro (&Qmode_line); | |
e5d77022 JB |
10577 | Qvertical_line = intern ("vertical-line"); |
10578 | staticpro (&Qvertical_line); | |
3c370943 JB |
10579 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10580 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10581 | Qmenu_bar = intern ("menu-bar"); |
10582 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10583 | |
10584 | Qabove_handle = intern ("above-handle"); | |
10585 | staticpro (&Qabove_handle); | |
10586 | Qhandle = intern ("handle"); | |
10587 | staticpro (&Qhandle); | |
10588 | Qbelow_handle = intern ("below-handle"); | |
10589 | staticpro (&Qbelow_handle); | |
db08707d RS |
10590 | Qup = intern ("up"); |
10591 | staticpro (&Qup); | |
10592 | Qdown = intern ("down"); | |
10593 | staticpro (&Qdown); | |
7ee32cda GM |
10594 | Qtop = intern ("top"); |
10595 | staticpro (&Qtop); | |
10596 | Qbottom = intern ("bottom"); | |
10597 | staticpro (&Qbottom); | |
10598 | Qend_scroll = intern ("end-scroll"); | |
10599 | staticpro (&Qend_scroll); | |
eef28553 SM |
10600 | Qratio = intern ("ratio"); |
10601 | staticpro (&Qratio); | |
284f4730 | 10602 | |
cd21b839 | 10603 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10604 | staticpro (&Qevent_kind); |
88cb0656 JB |
10605 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10606 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10607 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10608 | staticpro (&Qevent_symbol_element_mask); | |
10609 | Qmodifier_cache = intern ("modifier-cache"); | |
10610 | staticpro (&Qmodifier_cache); | |
284f4730 | 10611 | |
48e416d4 RS |
10612 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10613 | staticpro (&Qrecompute_lucid_menubar); | |
10614 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10615 | staticpro (&Qactivate_menubar_hook); | |
10616 | ||
f4eef8b4 RS |
10617 | Qpolling_period = intern ("polling-period"); |
10618 | staticpro (&Qpolling_period); | |
10619 | ||
7d18f9ae RS |
10620 | Qinput_method_function = intern ("input-method-function"); |
10621 | staticpro (&Qinput_method_function); | |
10622 | ||
d5eecefb RS |
10623 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10624 | staticpro (&Qinput_method_exit_on_first_char); | |
10625 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10626 | staticpro (&Qinput_method_use_echo_area); | |
10627 | ||
10628 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10629 | Fset (Qinput_method_use_echo_area, Qnil); | |
10630 | ||
e18dfbf4 KR |
10631 | last_point_position_buffer = Qnil; |
10632 | ||
284f4730 JB |
10633 | { |
10634 | struct event_head *p; | |
10635 | ||
10636 | for (p = head_table; | |
10637 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10638 | p++) | |
10639 | { | |
10640 | *p->var = intern (p->name); | |
10641 | staticpro (p->var); | |
10642 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10643 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10644 | } |
10645 | } | |
10646 | ||
8e1e4240 | 10647 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10648 | staticpro (&button_down_location); |
8e1e4240 GM |
10649 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10650 | staticpro (&mouse_syms); | |
88cb0656 JB |
10651 | |
10652 | { | |
10653 | int i; | |
10654 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10655 | ||
10656 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10657 | for (i = 0; i < len; i++) | |
86e5706b RS |
10658 | if (modifier_names[i]) |
10659 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10660 | staticpro (&modifier_symbols); |
10661 | } | |
10662 | ||
9deb415a JB |
10663 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10664 | staticpro (&recent_keys); | |
10665 | ||
6569cc8d | 10666 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10667 | staticpro (&this_command_keys); |
6569cc8d | 10668 | |
7d18f9ae RS |
10669 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10670 | staticpro (&raw_keybuf); | |
10671 | ||
03b4122a BF |
10672 | Qextended_command_history = intern ("extended-command-history"); |
10673 | Fset (Qextended_command_history, Qnil); | |
10674 | staticpro (&Qextended_command_history); | |
10675 | ||
da8f7368 GM |
10676 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10677 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10678 | |
24597608 RS |
10679 | accent_key_syms = Qnil; |
10680 | staticpro (&accent_key_syms); | |
10681 | ||
284f4730 JB |
10682 | func_key_syms = Qnil; |
10683 | staticpro (&func_key_syms); | |
10684 | ||
742fbed7 | 10685 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
10686 | mouse_wheel_syms = Qnil; |
10687 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
10688 | drag_n_drop_syms = Qnil; |
10689 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
10690 | #endif |
10691 | ||
cd21b839 JB |
10692 | unread_switch_frame = Qnil; |
10693 | staticpro (&unread_switch_frame); | |
10694 | ||
fe412364 EN |
10695 | internal_last_event_frame = Qnil; |
10696 | staticpro (&internal_last_event_frame); | |
10697 | ||
10698 | read_key_sequence_cmd = Qnil; | |
10699 | staticpro (&read_key_sequence_cmd); | |
10700 | ||
759860a6 RS |
10701 | menu_bar_one_keymap_changed_items = Qnil; |
10702 | staticpro (&menu_bar_one_keymap_changed_items); | |
10703 | ||
a1706c30 | 10704 | defsubr (&Sevent_convert_list); |
284f4730 | 10705 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10706 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10707 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10708 | #ifdef HAVE_MOUSE |
284f4730 | 10709 | defsubr (&Strack_mouse); |
2eb6bfbe | 10710 | #endif |
284f4730 JB |
10711 | defsubr (&Sinput_pending_p); |
10712 | defsubr (&Scommand_execute); | |
10713 | defsubr (&Srecent_keys); | |
10714 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10715 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10716 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10717 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10718 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10719 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10720 | defsubr (&Ssuspend_emacs); |
10721 | defsubr (&Sabort_recursive_edit); | |
10722 | defsubr (&Sexit_recursive_edit); | |
10723 | defsubr (&Srecursion_depth); | |
10724 | defsubr (&Stop_level); | |
10725 | defsubr (&Sdiscard_input); | |
10726 | defsubr (&Sopen_dribble_file); | |
10727 | defsubr (&Sset_input_mode); | |
80645119 | 10728 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10729 | defsubr (&Sexecute_extended_command); |
10730 | ||
284f4730 | 10731 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 10732 | doc: /* Last input event that was part of a command. */); |
86e5706b | 10733 | |
186cf719 | 10734 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 10735 | doc: /* Last input event that was part of a command. */); |
284f4730 | 10736 | |
7d6de002 | 10737 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
10738 | doc: /* Last input event in a command, except for mouse menu events. |
10739 | Mouse menus give back keys that don't look like mouse events; | |
10740 | this variable holds the actual mouse event that led to the menu, | |
10741 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 10742 | |
284f4730 | 10743 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 10744 | doc: /* Last input event. */); |
86e5706b | 10745 | |
186cf719 | 10746 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 10747 | doc: /* Last input event. */); |
284f4730 | 10748 | |
24597608 | 10749 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
10750 | doc: /* List of events to be read as the command input. |
10751 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 10752 | Vunread_command_events = Qnil; |
284f4730 | 10753 | |
86e5706b | 10754 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 10755 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 10756 | |
7d18f9ae | 10757 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
10758 | doc: /* List of events to be processed as input by input methods. |
10759 | These events are processed after `unread-command-events', but | |
10760 | before actual keyboard input. */); | |
7d18f9ae RS |
10761 | Vunread_post_input_method_events = Qnil; |
10762 | ||
10763 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
10764 | doc: /* List of events to be processed as input by input methods. |
10765 | These events are processed after `unread-command-events', but | |
10766 | before actual keyboard input. */); | |
7d18f9ae RS |
10767 | Vunread_input_method_events = Qnil; |
10768 | ||
284f4730 | 10769 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
10770 | doc: /* Meta-prefix character code. |
10771 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 10772 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10773 | |
6c7178b9 | 10774 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
10775 | doc: /* The last command executed. |
10776 | Normally a symbol with a function definition, but can be whatever was found | |
10777 | in the keymap, or whatever the variable `this-command' was set to by that | |
10778 | command. | |
10779 | ||
10780 | The value `mode-exit' is special; it means that the previous command | |
10781 | read an event that told it to exit, and it did so and unread that event. | |
10782 | In other words, the present command is the event that made the previous | |
10783 | command exit. | |
10784 | ||
10785 | The value `kill-region' is special; it means that the previous command | |
10786 | was a kill command. */); | |
284f4730 | 10787 | |
75045dcb | 10788 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 10789 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 10790 | |
d5eecefb | 10791 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
10792 | doc: /* The command now being executed. |
10793 | The command can set this variable; whatever is put here | |
10794 | will be in `last-command' during the following command. */); | |
d5eecefb | 10795 | Vthis_command = Qnil; |
284f4730 | 10796 | |
8b9940e6 KS |
10797 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
10798 | doc: /* If non-nil, the original command bound to the current key sequence. | |
10799 | The value of `this-command' is the result of looking up the original | |
10800 | command in the active keymaps. */); | |
10801 | Vthis_original_command = Qnil; | |
10802 | ||
284f4730 | 10803 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
10804 | doc: /* *Number of input events between auto-saves. |
10805 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
10806 | auto_save_interval = 300; |
10807 | ||
10808 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
10809 | doc: /* *Number of seconds idle time before auto-save. |
10810 | Zero or nil means disable auto-saving due to idleness. | |
10811 | After auto-saving due to this many seconds of idle time, | |
10812 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 10813 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10814 | |
39aab679 | 10815 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
10816 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
10817 | The value may be integer or floating point. */); | |
39aab679 | 10818 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10819 | |
10820 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
10821 | doc: /* *Interval between polling for input during Lisp execution. |
10822 | The reason for polling is to make C-g work to stop a running program. | |
10823 | Polling is needed only when using X windows and SIGIO does not work. | |
10824 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 10825 | polling_period = 2; |
df0f2ba1 | 10826 | |
564dc952 | 10827 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
10828 | doc: /* *Maximum time between mouse clicks to make a double-click. |
10829 | Measured in milliseconds. nil means disable double-click recognition; | |
10830 | t means double-clicks have no time limit and are detected | |
10831 | by position only. */); | |
aab06933 | 10832 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10833 | |
222d557c | 10834 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
10835 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
10836 | On window-system frames, value is the number of pixels the mouse may have | |
10837 | moved horizontally or vertically between two clicks to make a double-click. | |
10838 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
10839 | instead of pixels. |
10840 | ||
10841 | This variable is also the threshold for motion of the mouse | |
10842 | to count as a drag. */); | |
222d557c GM |
10843 | double_click_fuzz = 3; |
10844 | ||
03361bcc | 10845 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 10846 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
10847 | inhibit_local_menu_bar_menus = 0; |
10848 | ||
284f4730 | 10849 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
10850 | doc: /* Number of complete key sequences read as input so far. |
10851 | This includes key sequences read from keyboard macros. | |
10852 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
10853 | num_input_keys = 0; |
10854 | ||
c43b1734 | 10855 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
10856 | doc: /* Number of input events read from the keyboard so far. |
10857 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 10858 | num_nonmacro_input_events = 0; |
fa90970d | 10859 | |
4c52b668 | 10860 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
10861 | doc: /* The frame in which the most recently read event occurred. |
10862 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
10863 | Vlast_event_frame = Qnil; |
10864 | ||
fa90970d RS |
10865 | /* This variable is set up in sysdep.c. */ |
10866 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 10867 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 10868 | |
7e85b935 | 10869 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
10870 | doc: /* Character to recognize as meaning Help. |
10871 | When it is read, do `(eval help-form)', and display result if it's a string. | |
10872 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 10873 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10874 | |
ecb7cb34 | 10875 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
10876 | doc: /* List of input events to recognize as meaning Help. |
10877 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
10878 | Vhelp_event_list = Qnil; |
10879 | ||
284f4730 | 10880 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
10881 | doc: /* Form to execute when character `help-char' is read. |
10882 | If the form returns a string, that string is displayed. | |
10883 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
10884 | Vhelp_form = Qnil; |
10885 | ||
7e85b935 | 10886 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
10887 | doc: /* Command to run when `help-char' character follows a prefix key. |
10888 | This command is used only when there is no actual binding | |
10889 | for that character after that prefix key. */); | |
7e85b935 RS |
10890 | Vprefix_help_command = Qnil; |
10891 | ||
284f4730 | 10892 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
10893 | doc: /* Form to evaluate when Emacs starts up. |
10894 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
10895 | Vtop_level = Qnil; |
10896 | ||
10897 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 PJ |
10898 | doc: /* Translate table for keyboard input, or nil. |
10899 | Each character is looked up in this string and the contents used instead. | |
10900 | The value may be a string, a vector, or a char-table. | |
10901 | If it is a string or vector of length N, | |
10902 | character codes N and up are untranslated. | |
10903 | In a vector or a char-table, an element which is nil means "no translation". */); | |
284f4730 JB |
10904 | Vkeyboard_translate_table = Qnil; |
10905 | ||
8026024c | 10906 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
10907 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
10908 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
10909 | cannot_suspend = 0; |
10910 | ||
284f4730 | 10911 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
10912 | doc: /* Non-nil means prompt with menus when appropriate. |
10913 | This is done when reading from a keymap that has a prompt string, | |
10914 | for elements that have prompt strings. | |
10915 | The menu is displayed on the screen | |
10916 | if X menus were enabled at configuration | |
10917 | time and the previous event was a mouse click prefix key. | |
10918 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
10919 | menu_prompting = 1; |
10920 | ||
10921 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
10922 | doc: /* Character to see next line of menu prompt. |
10923 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 10924 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10925 | |
10926 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
10927 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
10928 | Emacs applies the modifiers of the character stored here to each keyboard | |
10929 | character it reads. For example, after evaluating the expression | |
10930 | (setq extra-keyboard-modifiers ?\\C-x) | |
10931 | all input characters will have the control modifier applied to them. | |
10932 | ||
10933 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
10934 | not count as a control character; rather, it counts as a character | |
10935 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
10936 | cancels any modification. */); | |
9fa4395d | 10937 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10938 | |
10939 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
10940 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
10941 | The command loop sets this to nil before each command, | |
10942 | and tests the value when the command returns. | |
10943 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
10944 | Vdeactivate_mark = Qnil; |
10945 | ||
b0f2a7bf | 10946 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 10947 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
10948 | Vcommand_hook_internal = Qnil; |
10949 | ||
86e5706b | 10950 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
10951 | doc: /* Normal hook run before each command is executed. |
10952 | If an unhandled error happens in running this hook, | |
10953 | the hook value is set to nil, since otherwise the error | |
10954 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
10955 | Vpre_command_hook = Qnil; |
10956 | ||
10957 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
10958 | doc: /* Normal hook run after each command is executed. |
10959 | If an unhandled error happens in running this hook, | |
10960 | the hook value is set to nil, since otherwise the error | |
10961 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 10962 | Vpost_command_hook = Qnil; |
48e416d4 | 10963 | |
59aadc81 | 10964 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
4707d2d0 | 10965 | doc: /* Normal hook run after each command is executed, if idle. |
cf9b6656 | 10966 | Errors running the hook are caught and ignored. */); |
59aadc81 RS |
10967 | Vpost_command_idle_hook = Qnil; |
10968 | ||
10969 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
4707d2d0 PJ |
10970 | doc: /* Delay time before running `post-command-idle-hook'. |
10971 | This is measured in microseconds. */); | |
59aadc81 RS |
10972 | post_command_idle_delay = 100000; |
10973 | ||
cf24f894 RS |
10974 | #if 0 |
10975 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 10976 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
10977 | #endif |
10978 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10979 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); | |
cdb9d665 | 10980 | |
48e416d4 | 10981 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 10982 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 10983 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 10984 | |
9f9c0e27 | 10985 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
10986 | doc: /* List of menu bar items to move to the end of the menu bar. |
10987 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 10988 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10989 | |
217258d5 KH |
10990 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10991 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
10992 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
10993 | If this variable is non-nil, it is used as a keymap instead of the | |
10994 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
10995 | This variable is intended to let commands such as `universal-argument' | |
10996 | set up a different keymap for reading the next command. */); | |
217258d5 | 10997 | |
9dd3131c | 10998 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 PJ |
10999 | doc: /* Keymap that overrides all other local keymaps. |
11000 | If this variable is non-nil, it is used as a keymap instead of the | |
11001 | buffer's local map, and the minor mode keymaps and text property keymaps. */); | |
9dd3131c RS |
11002 | Voverriding_local_map = Qnil; |
11003 | ||
d0a49716 | 11004 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11005 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11006 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11007 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11008 | Voverriding_local_map_menu_flag = Qnil; |
11009 | ||
7f07d5ca | 11010 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 11011 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
11012 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
11013 | ||
71edead1 | 11014 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 11015 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11016 | |
7c97ffdc | 11017 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11018 | doc: /* Alist of system-specific X windows key symbols. |
11019 | Each element should have the form (N . SYMBOL) where N is the | |
11020 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
11021 | and SYMBOL is its name. */); | |
8a792f3a RS |
11022 | |
11023 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
11024 | doc: /* List of deferred actions to be performed at a later time. |
11025 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
11026 | Vdeferred_action_list = Qnil; |
11027 | ||
11028 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
11029 | doc: /* Function to call to handle deferred actions, after each command. |
11030 | This function is called with no arguments after each command | |
11031 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 11032 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
11033 | |
11034 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
11035 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
11036 | The value can be a length of time to show the message for. | |
11037 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 11038 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 11039 | |
c04cbc3b | 11040 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 11041 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 11042 | Vtimer_list = Qnil; |
d9d4c147 KH |
11043 | |
11044 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 11045 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 11046 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
11047 | |
11048 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
11049 | doc: /* If non-nil, the function that implements the current input method. |
11050 | It's called with one argument, a printing character that was just read. | |
11051 | \(That means a character with code 040...0176.) | |
11052 | Typically this function uses `read-event' to read additional events. | |
11053 | When it does so, it should first bind `input-method-function' to nil | |
11054 | so it will not be called recursively. | |
11055 | ||
11056 | The function should return a list of zero or more events | |
11057 | to be used as input. If it wants to put back some events | |
11058 | to be reconsidered, separately, by the input method, | |
11059 | it can add them to the beginning of `unread-command-events'. | |
11060 | ||
11061 | The input method function can find in `input-method-previous-method' | |
11062 | the previous echo area message. | |
11063 | ||
11064 | The input method function should refer to the variables | |
11065 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
11066 | for guidance on what to do. */); | |
7d18f9ae | 11067 | Vinput_method_function = Qnil; |
d5eecefb RS |
11068 | |
11069 | DEFVAR_LISP ("input-method-previous-message", | |
11070 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
11071 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
11072 | This variable exists because `read-event' clears the echo area | |
11073 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 11074 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
11075 | |
11076 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
11077 | doc: /* If non-nil, the function that implements the display of help. |
11078 | It's called with one argument, the help string to display. */); | |
7ee32cda | 11079 | Vshow_help_function = Qnil; |
adf5cb9c KH |
11080 | |
11081 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
11082 | doc: /* If non-nil, suppress point adjustment after executing a command. |
11083 | ||
11084 | After a command is executed, if point is moved into a region that has | |
11085 | special properties (e.g. composition, display), we adjust point to | |
11086 | the boundary of the region. But, several special commands sets this | |
11087 | variable to non-nil, then we suppress the point adjustment. | |
11088 | ||
11089 | This variable is set to nil before reading a command, and is checked | |
11090 | just after executing the command. */); | |
adf5cb9c KH |
11091 | Vdisable_point_adjustment = Qnil; |
11092 | ||
11093 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11094 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11095 | doc: /* *If non-nil, always suppress point adjustment. |
11096 | ||
11097 | The default value is nil, in which case, point adjustment are | |
11098 | suppressed only after special commands that set | |
11099 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11100 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11101 | |
a1d34b1e | 11102 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
11103 | doc: /* Non-nil means updating menu bindings is allowed. |
11104 | A value of nil means menu bindings should not be updated. | |
11105 | Used during Emacs' startup. */); | |
3626fb1a | 11106 | update_menu_bindings = 1; |
00392ce6 MB |
11107 | |
11108 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
11109 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11110 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11111 | Vminibuffer_message_timeout = make_number (2); |
284f4730 JB |
11112 | } |
11113 | ||
dfcf069d | 11114 | void |
284f4730 JB |
11115 | keys_of_keyboard () |
11116 | { | |
11117 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11118 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11119 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11120 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11121 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11122 | |
11123 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11124 | "handle-delete-frame"); | |
11125 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
11126 | "ignore-event"); | |
11127 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
11128 | "ignore-event"); | |
a697f886 PJ |
11129 | initial_define_lispy_key (Vspecial_event_map, "select-window", |
11130 | "handle-select-window"); | |
4ebc27a5 JD |
11131 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11132 | "handle-save-session"); | |
284f4730 | 11133 | } |