Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
526a058f | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000, 2001 |
39aab679 | 3 | Free Software Foundation, Inc. |
284f4730 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 9 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
284f4730 | 21 | |
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
284f4730 | 24 | #include <stdio.h> |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
27 | #include "lisp.h" | |
28 | #include "termhooks.h" | |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.h" |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.h" |
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 | ||
1a578e9b AC |
74 | #ifdef macintosh |
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. */ |
f019cded | 97 | #ifdef macintosh |
1a578e9b | 98 | /* But not too big (local data > 32K error) if on macintosh. */ |
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 KH |
507 | |
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; | |
07de30b9 GV |
553 | #ifdef WINDOWSNT |
554 | Lisp_Object Qmouse_wheel; | |
1161d367 | 555 | Lisp_Object Qlanguage_change; |
07de30b9 | 556 | #endif |
a24dc617 | 557 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
558 | Lisp_Object Qsave_session; |
559 | ||
284f4730 | 560 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
561 | |
562 | /* Properties of event headers. */ | |
563 | Lisp_Object Qevent_kind; | |
88cb0656 | 564 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 565 | |
e8886a1d RS |
566 | /* menu item parts */ |
567 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 568 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
569 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
570 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
571 | extern Lisp_Object Vdefine_key_rebound_commands; |
572 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 573 | |
0a7f1fc0 JB |
574 | /* An event header symbol HEAD may have a property named |
575 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
576 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
577 | mask of modifiers applied to it. If present, this is used to help | |
578 | speed up parse_modifiers. */ | |
579 | Lisp_Object Qevent_symbol_element_mask; | |
580 | ||
581 | /* An unmodified event header BASE may have a property named | |
582 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
583 | modified versions of BASE. If present, this helps speed up | |
584 | apply_modifiers. */ | |
585 | Lisp_Object Qmodifier_cache; | |
586 | ||
5ec75a55 | 587 | /* Symbols to use for parts of windows. */ |
284f4730 | 588 | Lisp_Object Qmode_line; |
e5d77022 | 589 | Lisp_Object Qvertical_line; |
3c370943 | 590 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
591 | Lisp_Object Qmenu_bar; |
592 | ||
f4255cd1 JB |
593 | Lisp_Object recursive_edit_unwind (), command_loop (); |
594 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 595 | Lisp_Object Qextended_command_history; |
c04cbc3b | 596 | EMACS_TIME timer_check (); |
284f4730 | 597 | |
f4385381 RS |
598 | extern Lisp_Object Vhistory_length; |
599 | ||
2c834fb3 KH |
600 | extern char *x_get_keysym_name (); |
601 | ||
8eb4d8ef RS |
602 | static void record_menu_key (); |
603 | ||
f4eef8b4 RS |
604 | Lisp_Object Qpolling_period; |
605 | ||
d9d4c147 | 606 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
607 | Lisp_Object Vtimer_list; |
608 | ||
d9d4c147 KH |
609 | /* List of idle time timers. Appears in order of next scheduled event. */ |
610 | Lisp_Object Vtimer_idle_list; | |
611 | ||
87dd9b9b RS |
612 | /* Incremented whenever a timer is run. */ |
613 | int timers_run; | |
614 | ||
a9f16aa9 KH |
615 | extern Lisp_Object Vprint_level, Vprint_length; |
616 | ||
ffd56f97 JB |
617 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
618 | happens. */ | |
619 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
620 | |
621 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
622 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
623 | int interrupt_input; | |
624 | ||
625 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
626 | int interrupts_deferred; | |
627 | ||
87dd9b9b | 628 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
629 | int flow_control; |
630 | ||
284f4730 JB |
631 | /* Allow m- file to inhibit use of FIONREAD. */ |
632 | #ifdef BROKEN_FIONREAD | |
633 | #undef FIONREAD | |
634 | #endif | |
635 | ||
636 | /* We are unable to use interrupts if FIONREAD is not available, | |
637 | so flush SIGIO so we won't try. */ | |
638 | #ifndef FIONREAD | |
639 | #ifdef SIGIO | |
640 | #undef SIGIO | |
641 | #endif | |
642 | #endif | |
643 | ||
e98a93eb | 644 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 645 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 646 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
647 | #define POLL_FOR_INPUT |
648 | #endif | |
adf5cb9c KH |
649 | |
650 | /* After a command is executed, if point is moved into a region that | |
651 | has specific properties (e.g. composition, display), we adjust | |
652 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 653 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 654 | variable is set to nil before reading a command. */ |
da8f7368 | 655 | |
adf5cb9c KH |
656 | Lisp_Object Vdisable_point_adjustment; |
657 | ||
658 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 659 | |
adf5cb9c KH |
660 | Lisp_Object Vglobal_disable_point_adjustment; |
661 | ||
fdbb67fe GM |
662 | /* The time when Emacs started being idle. */ |
663 | ||
664 | static EMACS_TIME timer_idleness_start_time; | |
665 | ||
284f4730 JB |
666 | \f |
667 | /* Global variable declarations. */ | |
668 | ||
669 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
670 | void (*keyboard_init_hook) (); | |
671 | ||
0bbfdc25 GM |
672 | static int read_avail_input P_ ((int)); |
673 | static void get_input_pending P_ ((int *, int)); | |
674 | static int readable_events P_ ((int)); | |
675 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
676 | Lisp_Object, int *)); | |
8150596a | 677 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
678 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
679 | Lisp_Object *)); | |
680 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 681 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
682 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
683 | enum scroll_bar_part, | |
684 | Lisp_Object, Lisp_Object, | |
685 | unsigned long)); | |
514354e9 | 686 | #endif |
0bbfdc25 GM |
687 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
688 | Lisp_Object, char **, | |
689 | Lisp_Object *, unsigned)); | |
690 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
691 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 692 | static int parse_solitary_modifier (); |
0bbfdc25 | 693 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 694 | static void save_getcjmp (); |
0bbfdc25 | 695 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 696 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 697 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 698 | static void any_kboard_state P_ ((void)); |
284f4730 | 699 | |
8026024c KH |
700 | /* Nonzero means don't try to suspend even if the operating system seems |
701 | to support it. */ | |
702 | static int cannot_suspend; | |
703 | ||
284f4730 JB |
704 | /* Install the string STR as the beginning of the string of echoing, |
705 | so that it serves as a prompt for the next character. | |
706 | Also start echoing. */ | |
707 | ||
dfcf069d | 708 | void |
284f4730 | 709 | echo_prompt (str) |
a4ef85ee | 710 | Lisp_Object str; |
284f4730 | 711 | { |
678e9d18 | 712 | current_kboard->echo_string = str; |
0d121f7c | 713 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 714 | echo_now (); |
284f4730 JB |
715 | } |
716 | ||
df0f2ba1 | 717 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
718 | C can be a character, which is printed prettily ("M-C-x" and all that |
719 | jazz), or a symbol, whose name is printed. */ | |
720 | ||
dfcf069d | 721 | void |
284f4730 JB |
722 | echo_char (c) |
723 | Lisp_Object c; | |
724 | { | |
c5fdd383 | 725 | if (current_kboard->immediate_echo) |
284f4730 | 726 | { |
678e9d18 GM |
727 | int size = KEY_DESCRIPTION_SIZE + 100; |
728 | char *buffer = (char *) alloca (size); | |
729 | char *ptr = buffer; | |
730 | Lisp_Object echo_string; | |
284f4730 | 731 | |
0d121f7c GM |
732 | echo_string = current_kboard->echo_string; |
733 | ||
284f4730 | 734 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 735 | c = EVENT_HEAD (c); |
284f4730 | 736 | |
8c18cbfb | 737 | if (INTEGERP (c)) |
284f4730 | 738 | { |
678e9d18 | 739 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 740 | } |
8c18cbfb | 741 | else if (SYMBOLP (c)) |
284f4730 JB |
742 | { |
743 | struct Lisp_String *name = XSYMBOL (c)->name; | |
0d121f7c | 744 | int nbytes = STRING_BYTES (name); |
678e9d18 | 745 | |
0d121f7c | 746 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
747 | { |
748 | int offset = ptr - buffer; | |
0d121f7c | 749 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
750 | buffer = (char *) alloca (size); |
751 | ptr = buffer + offset; | |
752 | } | |
753 | ||
0d121f7c | 754 | ptr += copy_text (name->data, ptr, nbytes, |
a4ef85ee | 755 | name->size_byte >= 0, 1); |
284f4730 JB |
756 | } |
757 | ||
0d121f7c | 758 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 759 | && help_char_p (c)) |
284f4730 | 760 | { |
678e9d18 GM |
761 | const char *text = " (Type ? for further options)"; |
762 | int len = strlen (text); | |
763 | ||
764 | if (size - (ptr - buffer) < len) | |
765 | { | |
766 | int offset = ptr - buffer; | |
767 | size += len; | |
768 | buffer = (char *) alloca (size); | |
769 | ptr = buffer + offset; | |
770 | } | |
771 | ||
772 | bcopy (text, ptr, len); | |
773 | ptr += len; | |
284f4730 JB |
774 | } |
775 | ||
0d121f7c GM |
776 | /* Replace a dash from echo_dash with a space, otherwise |
777 | add a space at the end as a separator between keys. */ | |
678e9d18 | 778 | if (STRINGP (echo_string) |
0d121f7c GM |
779 | && SCHARS (echo_string) > 0) |
780 | { | |
781 | Lisp_Object last_char, idx; | |
782 | ||
783 | idx = make_number (SCHARS (echo_string) - 1); | |
784 | last_char = Faref (echo_string, idx); | |
785 | ||
786 | if (XINT (last_char) == '-') | |
787 | Faset (echo_string, idx, make_number (' ')); | |
788 | else | |
789 | echo_string = concat2 (echo_string, build_string (" ")); | |
790 | } | |
678e9d18 GM |
791 | |
792 | current_kboard->echo_string | |
793 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 794 | |
3dbd9ee4 | 795 | echo_now (); |
284f4730 JB |
796 | } |
797 | } | |
798 | ||
799 | /* Temporarily add a dash to the end of the echo string if it's not | |
800 | empty, so that it serves as a mini-prompt for the very next character. */ | |
801 | ||
dfcf069d | 802 | void |
284f4730 JB |
803 | echo_dash () |
804 | { | |
678e9d18 GM |
805 | /* Do nothing if not echoing at all. */ |
806 | if (NILP (current_kboard->echo_string)) | |
807 | return; | |
808 | ||
c5fdd383 | 809 | if (!current_kboard->immediate_echo |
0d121f7c | 810 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 811 | return; |
678e9d18 | 812 | |
7a80a6f6 | 813 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 814 | if (current_kboard->echo_after_prompt |
0d121f7c | 815 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 816 | return; |
678e9d18 | 817 | |
284f4730 JB |
818 | /* Put a dash at the end of the buffer temporarily, |
819 | but make it go away when the next character is added. */ | |
678e9d18 GM |
820 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
821 | build_string ("-")); | |
3dbd9ee4 | 822 | echo_now (); |
284f4730 JB |
823 | } |
824 | ||
825 | /* Display the current echo string, and begin echoing if not already | |
826 | doing so. */ | |
827 | ||
07a59269 | 828 | void |
3dbd9ee4 | 829 | echo_now () |
284f4730 | 830 | { |
c5fdd383 | 831 | if (!current_kboard->immediate_echo) |
284f4730 JB |
832 | { |
833 | int i; | |
c5fdd383 | 834 | current_kboard->immediate_echo = 1; |
284f4730 JB |
835 | |
836 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
837 | { |
838 | Lisp_Object c; | |
839 | c = XVECTOR (this_command_keys)->contents[i]; | |
840 | if (! (EVENT_HAS_PARAMETERS (c) | |
841 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
842 | echo_char (c); | |
843 | } | |
284f4730 JB |
844 | echo_dash (); |
845 | } | |
846 | ||
847 | echoing = 1; | |
678e9d18 | 848 | message3_nolog (current_kboard->echo_string, |
0d121f7c GM |
849 | SBYTES (current_kboard->echo_string), |
850 | SMBP (current_kboard->echo_string)); | |
284f4730 JB |
851 | echoing = 0; |
852 | ||
59a84f8e GM |
853 | /* Record in what buffer we echoed, and from which kboard. */ |
854 | echo_message_buffer = echo_area_buffer[0]; | |
855 | echo_kboard = current_kboard; | |
856 | ||
284f4730 JB |
857 | if (waiting_for_input && !NILP (Vquit_flag)) |
858 | quit_throw_to_read_char (); | |
859 | } | |
860 | ||
861 | /* Turn off echoing, for the start of a new command. */ | |
862 | ||
dfcf069d | 863 | void |
284f4730 JB |
864 | cancel_echoing () |
865 | { | |
c5fdd383 | 866 | current_kboard->immediate_echo = 0; |
c5fdd383 | 867 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 868 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
869 | ok_to_echo_at_next_pause = NULL; |
870 | echo_kboard = NULL; | |
871 | echo_message_buffer = Qnil; | |
284f4730 JB |
872 | } |
873 | ||
874 | /* Return the length of the current echo string. */ | |
875 | ||
876 | static int | |
877 | echo_length () | |
878 | { | |
678e9d18 | 879 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 880 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 881 | : 0); |
284f4730 JB |
882 | } |
883 | ||
884 | /* Truncate the current echo message to its first LEN chars. | |
885 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 886 | switches frames while entering a key sequence. */ |
284f4730 JB |
887 | |
888 | static void | |
678e9d18 GM |
889 | echo_truncate (nchars) |
890 | int nchars; | |
891 | { | |
892 | if (STRINGP (current_kboard->echo_string)) | |
893 | current_kboard->echo_string | |
894 | = Fsubstring (current_kboard->echo_string, | |
895 | make_number (0), make_number (nchars)); | |
896 | truncate_echo_area (nchars); | |
284f4730 JB |
897 | } |
898 | ||
899 | \f | |
900 | /* Functions for manipulating this_command_keys. */ | |
901 | static void | |
902 | add_command_key (key) | |
903 | Lisp_Object key; | |
904 | { | |
71918b75 RS |
905 | /* If reset-this-command-length was called recently, obey it now. |
906 | See the doc string of that function for an explanation of why. */ | |
907 | if (before_command_restore_flag) | |
908 | { | |
909 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
910 | if (this_command_key_count < this_single_command_key_start) |
911 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
912 | echo_truncate (before_command_echo_length_1); |
913 | before_command_restore_flag = 0; | |
914 | } | |
915 | ||
f4e05d97 GM |
916 | if (this_command_key_count >= ASIZE (this_command_keys)) |
917 | this_command_keys = larger_vector (this_command_keys, | |
918 | 2 * ASIZE (this_command_keys), | |
919 | Qnil); | |
6569cc8d | 920 | |
f4e05d97 GM |
921 | AREF (this_command_keys, this_command_key_count) = key; |
922 | ++this_command_key_count; | |
284f4730 | 923 | } |
f4e05d97 | 924 | |
284f4730 JB |
925 | \f |
926 | Lisp_Object | |
927 | recursive_edit_1 () | |
928 | { | |
929 | int count = specpdl_ptr - specpdl; | |
930 | Lisp_Object val; | |
931 | ||
932 | if (command_loop_level > 0) | |
933 | { | |
934 | specbind (Qstandard_output, Qt); | |
935 | specbind (Qstandard_input, Qt); | |
936 | } | |
937 | ||
84265027 | 938 | #ifdef HAVE_X_WINDOWS |
526a058f | 939 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 940 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
941 | can take some time. Do not check for display_hourglass_p here, |
942 | because it could already be nil. */ | |
526a058f | 943 | cancel_hourglass (); |
84265027 GM |
944 | #endif |
945 | ||
980a2d69 GM |
946 | /* This function may have been called from a debugger called from |
947 | within redisplay, for instance by Edebugging a function called | |
948 | from fontification-functions. We want to allow redisplay in | |
949 | the debugging session. | |
950 | ||
951 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
952 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
953 | recursive edit, the original redisplay leading to the recursive | |
954 | edit will be unwound. The outcome should therefore be safe. */ | |
955 | specbind (Qinhibit_redisplay, Qnil); | |
956 | redisplaying_p = 0; | |
957 | ||
284f4730 JB |
958 | val = command_loop (); |
959 | if (EQ (val, Qt)) | |
960 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
961 | /* Handle throw from read_minibuf when using minibuffer |
962 | while it's active but we're in another window. */ | |
963 | if (STRINGP (val)) | |
964 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 965 | |
cb5df6ae | 966 | return unbind_to (count, Qnil); |
284f4730 JB |
967 | } |
968 | ||
969 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 970 | |
07a59269 | 971 | void |
284f4730 JB |
972 | record_auto_save () |
973 | { | |
c43b1734 | 974 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 975 | } |
5846638c RS |
976 | |
977 | /* Make an auto save happen as soon as possible at command level. */ | |
978 | ||
dfcf069d | 979 | void |
5846638c RS |
980 | force_auto_save_soon () |
981 | { | |
982 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
983 | |
984 | record_asynch_buffer_change (); | |
5846638c | 985 | } |
284f4730 | 986 | \f |
284f4730 | 987 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
988 | doc: /* Invoke the editor command loop recursively. |
989 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
990 | that tells this function to return. | |
991 | Alternately, `(throw 'exit t)' makes this function signal an error. | |
992 | This function is called by the editor initialization to begin editing. */) | |
993 | () | |
284f4730 JB |
994 | { |
995 | int count = specpdl_ptr - specpdl; | |
9ce50b1e | 996 | Lisp_Object buffer; |
284f4730 JB |
997 | |
998 | command_loop_level++; | |
999 | update_mode_lines = 1; | |
1000 | ||
9ce50b1e GM |
1001 | if (command_loop_level |
1002 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1003 | buffer = Fcurrent_buffer (); | |
1004 | else | |
1005 | buffer = Qnil; | |
1006 | ||
1007 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1008 | like it is done in the splash screen display, we have to | |
1009 | make sure that we restore single_kboard as command_loop_1 | |
1010 | would have done if it were left normally. */ | |
284f4730 | 1011 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1012 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1013 | ||
284f4730 JB |
1014 | recursive_edit_1 (); |
1015 | return unbind_to (count, Qnil); | |
1016 | } | |
1017 | ||
1018 | Lisp_Object | |
9ce50b1e GM |
1019 | recursive_edit_unwind (info) |
1020 | Lisp_Object info; | |
284f4730 | 1021 | { |
9ce50b1e GM |
1022 | if (BUFFERP (XCAR (info))) |
1023 | Fset_buffer (XCAR (info)); | |
1024 | ||
1025 | if (NILP (XCDR (info))) | |
1026 | any_kboard_state (); | |
1027 | else | |
1028 | single_kboard_state (); | |
1029 | ||
284f4730 JB |
1030 | command_loop_level--; |
1031 | update_mode_lines = 1; | |
1032 | return Qnil; | |
1033 | } | |
9ce50b1e | 1034 | |
284f4730 | 1035 | \f |
604ccd1d | 1036 | static void |
1e8bd3da | 1037 | any_kboard_state () |
604ccd1d | 1038 | { |
1e8bd3da RS |
1039 | #ifdef MULTI_KBOARD |
1040 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1041 | it will right away be read by read_key_sequence, | |
1042 | and then if we do switch KBOARDS, it will go into the side | |
1043 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1044 | if (CONSP (Vunread_command_events)) |
4524b161 | 1045 | { |
c5fdd383 KH |
1046 | current_kboard->kbd_queue |
1047 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1048 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1049 | } |
604ccd1d | 1050 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1051 | #endif |
1052 | single_kboard = 0; | |
1053 | #endif | |
604ccd1d | 1054 | } |
1e8bd3da RS |
1055 | |
1056 | /* Switch to the single-kboard state, making current_kboard | |
1057 | the only KBOARD from which further input is accepted. */ | |
1058 | ||
1059 | void | |
1060 | single_kboard_state () | |
1061 | { | |
1062 | #ifdef MULTI_KBOARD | |
1063 | single_kboard = 1; | |
604ccd1d | 1064 | #endif |
1e8bd3da RS |
1065 | } |
1066 | ||
1067 | /* Maintain a stack of kboards, so other parts of Emacs | |
1068 | can switch temporarily to the kboard of a given frame | |
1069 | and then revert to the previous status. */ | |
1070 | ||
1071 | struct kboard_stack | |
1072 | { | |
1073 | KBOARD *kboard; | |
1074 | struct kboard_stack *next; | |
1075 | }; | |
1076 | ||
1077 | static struct kboard_stack *kboard_stack; | |
1078 | ||
1079 | void | |
1080 | push_frame_kboard (f) | |
1081 | FRAME_PTR f; | |
1082 | { | |
ab48365b | 1083 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1084 | struct kboard_stack *p |
1085 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1086 | ||
1087 | p->next = kboard_stack; | |
1088 | p->kboard = current_kboard; | |
1089 | kboard_stack = p; | |
1090 | ||
1091 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1092 | #endif |
1e8bd3da RS |
1093 | } |
1094 | ||
1095 | void | |
1096 | pop_frame_kboard () | |
1097 | { | |
ab48365b | 1098 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1099 | struct kboard_stack *p = kboard_stack; |
1100 | current_kboard = p->kboard; | |
1101 | kboard_stack = p->next; | |
1102 | xfree (p); | |
ab48365b | 1103 | #endif |
1e8bd3da RS |
1104 | } |
1105 | \f | |
1106 | /* Handle errors that are not handled at inner levels | |
1107 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1108 | |
284f4730 JB |
1109 | Lisp_Object |
1110 | cmd_error (data) | |
1111 | Lisp_Object data; | |
a1341f75 | 1112 | { |
a9f16aa9 | 1113 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1114 | char macroerror[50]; |
1115 | ||
1116 | if (!NILP (executing_macro)) | |
1117 | { | |
1118 | if (executing_macro_iterations == 1) | |
1119 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1120 | else | |
1121 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1122 | executing_macro_iterations); | |
1123 | } | |
1124 | else | |
1125 | *macroerror = 0; | |
a9f16aa9 | 1126 | |
a1341f75 RS |
1127 | Vstandard_output = Qt; |
1128 | Vstandard_input = Qt; | |
1129 | Vexecuting_macro = Qnil; | |
9f58e89e | 1130 | executing_macro = Qnil; |
d8bcf58e | 1131 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1132 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1133 | cancel_echoing (); |
a9f16aa9 KH |
1134 | |
1135 | /* Avoid unquittable loop if data contains a circular list. */ | |
1136 | old_level = Vprint_level; | |
1137 | old_length = Vprint_length; | |
0c04a67e RS |
1138 | XSETFASTINT (Vprint_level, 10); |
1139 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1140 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1141 | Vprint_level = old_level; |
1142 | Vprint_length = old_length; | |
a1341f75 RS |
1143 | |
1144 | Vquit_flag = Qnil; | |
1145 | ||
1146 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1147 | #ifdef MULTI_KBOARD |
1e8bd3da | 1148 | any_kboard_state (); |
ff4b06d3 | 1149 | #endif |
a1341f75 RS |
1150 | |
1151 | return make_number (0); | |
1152 | } | |
1153 | ||
301738ed RS |
1154 | /* Take actions on handling an error. DATA is the data that describes |
1155 | the error. | |
1156 | ||
1157 | CONTEXT is a C-string containing ASCII characters only which | |
1158 | describes the context in which the error happened. If we need to | |
1159 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1160 | string. */ | |
1161 | ||
07a59269 | 1162 | void |
a1341f75 RS |
1163 | cmd_error_internal (data, context) |
1164 | Lisp_Object data; | |
1165 | char *context; | |
284f4730 | 1166 | { |
284f4730 | 1167 | Lisp_Object stream; |
7ee32cda | 1168 | int kill_emacs_p = 0; |
788f89eb | 1169 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1170 | |
1171 | Vquit_flag = Qnil; | |
1172 | Vinhibit_quit = Qt; | |
985f9f66 | 1173 | clear_message (1, 0); |
284f4730 | 1174 | |
ff11dfa1 | 1175 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1176 | yet, or we're not interactive, it's best to dump this message out |
1177 | to stderr and exit. */ | |
788f89eb | 1178 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1179 | /* This is the case of the frame dumped with Emacs, when we're |
1180 | running under a window system. */ | |
1181 | || (!NILP (Vwindow_system) | |
1182 | && !inhibit_window_system | |
788f89eb | 1183 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1184 | || noninteractive) |
7ee32cda GM |
1185 | { |
1186 | stream = Qexternal_debugging_output; | |
1187 | kill_emacs_p = 1; | |
1188 | } | |
284f4730 JB |
1189 | else |
1190 | { | |
1191 | Fdiscard_input (); | |
1192 | bitch_at_user (); | |
1193 | stream = Qt; | |
1194 | } | |
1195 | ||
a1341f75 RS |
1196 | if (context != 0) |
1197 | write_string_1 (context, -1, stream); | |
1198 | ||
22a51344 | 1199 | print_error_message (data, stream); |
284f4730 | 1200 | |
ff11dfa1 | 1201 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1202 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1203 | if (kill_emacs_p) |
284f4730 JB |
1204 | { |
1205 | Fterpri (stream); | |
1206 | Fkill_emacs (make_number (-1)); | |
1207 | } | |
284f4730 JB |
1208 | } |
1209 | \f | |
1210 | Lisp_Object command_loop_1 (); | |
1211 | Lisp_Object command_loop_2 (); | |
1212 | Lisp_Object top_level_1 (); | |
1213 | ||
1214 | /* Entry to editor-command-loop. | |
1215 | This level has the catches for exiting/returning to editor command loop. | |
1216 | It returns nil to exit recursive edit, t to abort it. */ | |
1217 | ||
1218 | Lisp_Object | |
1219 | command_loop () | |
1220 | { | |
1221 | if (command_loop_level > 0 || minibuf_level > 0) | |
1222 | { | |
07ba902e RS |
1223 | Lisp_Object val; |
1224 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1225 | executing_macro = Qnil; |
1226 | return val; | |
284f4730 JB |
1227 | } |
1228 | else | |
1229 | while (1) | |
1230 | { | |
1231 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1232 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1233 | executing_macro = Qnil; |
df0f2ba1 | 1234 | |
284f4730 JB |
1235 | /* End of file in -batch run causes exit here. */ |
1236 | if (noninteractive) | |
1237 | Fkill_emacs (Qt); | |
1238 | } | |
1239 | } | |
1240 | ||
1241 | /* Here we catch errors in execution of commands within the | |
1242 | editing loop, and reenter the editing loop. | |
1243 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1244 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1245 | returned due to end of file (or end of kbd macro). */ |
1246 | ||
1247 | Lisp_Object | |
1248 | command_loop_2 () | |
1249 | { | |
1250 | register Lisp_Object val; | |
1251 | ||
1252 | do | |
1253 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1254 | while (!NILP (val)); | |
1255 | ||
1256 | return Qnil; | |
1257 | } | |
1258 | ||
1259 | Lisp_Object | |
1260 | top_level_2 () | |
1261 | { | |
1262 | return Feval (Vtop_level); | |
1263 | } | |
1264 | ||
1265 | Lisp_Object | |
1266 | top_level_1 () | |
1267 | { | |
1268 | /* On entry to the outer level, run the startup file */ | |
1269 | if (!NILP (Vtop_level)) | |
1270 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1271 | else if (!NILP (Vpurify_flag)) | |
1272 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1273 | else | |
1274 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1275 | return Qnil; | |
1276 | } | |
1277 | ||
1278 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1279 | doc: /* Exit all recursive editing levels. */) |
1280 | () | |
284f4730 | 1281 | { |
2c9cf2c8 | 1282 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1283 | if (display_hourglass_p) |
1284 | cancel_hourglass (); | |
2c9cf2c8 | 1285 | #endif |
8c907a56 | 1286 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1287 | } |
1288 | ||
1289 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1290 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1291 | () | |
284f4730 JB |
1292 | { |
1293 | if (command_loop_level > 0 || minibuf_level > 0) | |
1294 | Fthrow (Qexit, Qnil); | |
1295 | ||
1296 | error ("No recursive edit is in progress"); | |
8c907a56 | 1297 | return Qnil; |
284f4730 JB |
1298 | } |
1299 | ||
1300 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1301 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1302 | () | |
284f4730 JB |
1303 | { |
1304 | if (command_loop_level > 0 || minibuf_level > 0) | |
1305 | Fthrow (Qexit, Qt); | |
1306 | ||
1307 | error ("No recursive edit is in progress"); | |
8c907a56 | 1308 | return Qnil; |
284f4730 JB |
1309 | } |
1310 | \f | |
1311 | /* This is the actual command reading loop, | |
1312 | sans error-handling encapsulation. */ | |
1313 | ||
a7b772c1 GM |
1314 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1315 | int, int, int)); | |
1316 | void safe_run_hooks P_ ((Lisp_Object)); | |
1317 | static void adjust_point_for_property P_ ((int)); | |
284f4730 JB |
1318 | |
1319 | Lisp_Object | |
1320 | command_loop_1 () | |
1321 | { | |
03cee6ae GM |
1322 | Lisp_Object cmd; |
1323 | int lose; | |
284f4730 JB |
1324 | int nonundocount; |
1325 | Lisp_Object keybuf[30]; | |
1326 | int i; | |
284f4730 | 1327 | int no_direct; |
86e5706b | 1328 | int prev_modiff; |
8c907a56 | 1329 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1330 | #ifdef MULTI_KBOARD |
1e8bd3da | 1331 | int was_locked = single_kboard; |
bded54dd | 1332 | #endif |
284f4730 | 1333 | |
d9b641bb | 1334 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1335 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1336 | Vdeactivate_mark = Qnil; |
284f4730 | 1337 | waiting_for_input = 0; |
df0f2ba1 | 1338 | cancel_echoing (); |
284f4730 | 1339 | |
284f4730 | 1340 | nonundocount = 0; |
284f4730 | 1341 | this_command_key_count = 0; |
6321824f | 1342 | this_single_command_key_start = 0; |
284f4730 | 1343 | |
a612e298 RS |
1344 | /* Make sure this hook runs after commands that get errors and |
1345 | throw to top level. */ | |
a98ea3f9 RS |
1346 | /* Note that the value cell will never directly contain nil |
1347 | if the symbol is a local variable. */ | |
e98a93eb | 1348 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1349 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1350 | |
8f12e41d GM |
1351 | /* If displaying a message, resize the echo area window to fit |
1352 | that message's size exactly. */ | |
1353 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1354 | resize_echo_area_exactly (); |
8f12e41d | 1355 | |
8a792f3a RS |
1356 | if (!NILP (Vdeferred_action_list)) |
1357 | call0 (Vdeferred_action_function); | |
1358 | ||
e98a93eb | 1359 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1360 | { |
1361 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1362 | && NILP (Vunread_input_method_events) |
1363 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1364 | && NILP (Vexecuting_macro) |
41365083 | 1365 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1366 | safe_run_hooks (Qpost_command_idle_hook); |
1367 | } | |
1368 | ||
51d5a2c9 | 1369 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1370 | current_kboard->Vlast_command = Vthis_command; |
1371 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1372 | |
284f4730 JB |
1373 | while (1) |
1374 | { | |
788f89eb | 1375 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1376 | Fkill_emacs (Qnil); |
1377 | ||
284f4730 JB |
1378 | /* Make sure the current window's buffer is selected. */ |
1379 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1380 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1381 | ||
1382 | /* Display any malloc warning that just came out. Use while because | |
1383 | displaying one warning can cause another. */ | |
1384 | ||
1385 | while (pending_malloc_warning) | |
1386 | display_malloc_warning (); | |
1387 | ||
1388 | no_direct = 0; | |
1389 | ||
86e5706b RS |
1390 | Vdeactivate_mark = Qnil; |
1391 | ||
284f4730 | 1392 | /* If minibuffer on and echo area in use, |
00392ce6 | 1393 | wait a short time and redraw minibuffer. */ |
284f4730 | 1394 | |
7ee32cda | 1395 | if (minibuf_level |
985f9f66 | 1396 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1397 | && EQ (minibuf_window, echo_area_window) |
1398 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1399 | { |
f1bed6d8 RS |
1400 | /* Bind inhibit-quit to t so that C-g gets read in |
1401 | rather than quitting back to the minibuffer. */ | |
1402 | int count = specpdl_ptr - specpdl; | |
1403 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1404 | |
00392ce6 | 1405 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1406 | /* Clear the echo area. */ |
301738ed | 1407 | message2 (0, 0, 0); |
cdb9d665 | 1408 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1409 | |
db08707d RS |
1410 | unbind_to (count, Qnil); |
1411 | ||
e6aa7813 | 1412 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1413 | if (!NILP (Vquit_flag)) |
1414 | { | |
1415 | Vquit_flag = Qnil; | |
24597608 | 1416 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1417 | } |
1418 | } | |
1419 | ||
1420 | #ifdef C_ALLOCA | |
ff4b06d3 | 1421 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1422 | /* Since we can free the most stuff here. */ |
1423 | #endif /* C_ALLOCA */ | |
1424 | ||
8f805655 | 1425 | #if 0 |
8f805655 JB |
1426 | /* Select the frame that the last event came from. Usually, |
1427 | switch-frame events will take care of this, but if some lisp | |
1428 | code swallows a switch-frame event, we'll fix things up here. | |
1429 | Is this a good idea? */ | |
8c18cbfb | 1430 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1431 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1432 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1433 | #endif |
48e416d4 RS |
1434 | /* If it has changed current-menubar from previous value, |
1435 | really recompute the menubar from the value. */ | |
a646e520 RS |
1436 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1437 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1438 | call0 (Qrecompute_lucid_menubar); |
1439 | ||
71918b75 RS |
1440 | before_command_key_count = this_command_key_count; |
1441 | before_command_echo_length = echo_length (); | |
1442 | ||
d5eecefb RS |
1443 | Vthis_command = Qnil; |
1444 | real_this_command = Qnil; | |
d7437ef6 | 1445 | |
8f805655 | 1446 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1447 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1448 | Qnil, 0, 1, 1); |
8f805655 | 1449 | |
6fac1409 | 1450 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1451 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1452 | Fkill_emacs (Qnil); |
6fac1409 RS |
1453 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1454 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1455 | ||
8f805655 JB |
1456 | ++num_input_keys; |
1457 | ||
284f4730 JB |
1458 | /* Now we have read a key sequence of length I, |
1459 | or else I is 0 and we found end of file. */ | |
1460 | ||
1461 | if (i == 0) /* End of file -- happens only in */ | |
1462 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1463 | /* -1 means read_key_sequence got a menu that was rejected. |
1464 | Just loop around and read another command. */ | |
1465 | if (i == -1) | |
1466 | { | |
1467 | cancel_echoing (); | |
1468 | this_command_key_count = 0; | |
6321824f | 1469 | this_single_command_key_start = 0; |
ff4b06d3 | 1470 | goto finalize; |
dcc408a0 | 1471 | } |
284f4730 | 1472 | |
284f4730 JB |
1473 | last_command_char = keybuf[i - 1]; |
1474 | ||
75c0b143 RS |
1475 | /* If the previous command tried to force a specific window-start, |
1476 | forget about that, in case this command moves point far away | |
c422836d KH |
1477 | from that position. But also throw away beg_unchanged and |
1478 | end_unchanged information in that case, so that redisplay will | |
1479 | update the whole window properly. */ | |
1480 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1481 | { | |
9351ebd0 | 1482 | struct buffer *b; |
c422836d | 1483 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1484 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1485 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1486 | } |
75c0b143 | 1487 | |
284f4730 JB |
1488 | cmd = read_key_sequence_cmd; |
1489 | if (!NILP (Vexecuting_macro)) | |
1490 | { | |
1491 | if (!NILP (Vquit_flag)) | |
1492 | { | |
1493 | Vexecuting_macro = Qt; | |
1494 | QUIT; /* Make some noise. */ | |
1495 | /* Will return since macro now empty. */ | |
1496 | } | |
1497 | } | |
1498 | ||
1499 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1500 | cases identified below. */ |
86e5706b RS |
1501 | prev_buffer = current_buffer; |
1502 | prev_modiff = MODIFF; | |
8746da95 | 1503 | last_point_position = PT; |
18cd2eeb | 1504 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1505 | |
adf5cb9c KH |
1506 | /* By default, we adjust point to a boundary of a region that |
1507 | has such a property that should be treated intangible | |
1508 | (e.g. composition, display). But, some commands will set | |
1509 | this variable differently. */ | |
1510 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1511 | |
be2488ca GM |
1512 | /* Process filters and timers may have messed with deactivate-mark. |
1513 | reset it before we execute the command. */ | |
1514 | Vdeactivate_mark = Qnil; | |
1515 | ||
8b9940e6 KS |
1516 | /* Remap command through active keymaps */ |
1517 | Vthis_original_command = cmd; | |
a34cb674 | 1518 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1519 | { |
1520 | Lisp_Object cmd1; | |
a34cb674 | 1521 | if (cmd1 = Fremap_command (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1522 | cmd = cmd1; |
1523 | } | |
1524 | ||
284f4730 JB |
1525 | /* Execute the command. */ |
1526 | ||
d5eecefb RS |
1527 | Vthis_command = cmd; |
1528 | real_this_command = cmd; | |
a98ea3f9 RS |
1529 | /* Note that the value cell will never directly contain nil |
1530 | if the symbol is a local variable. */ | |
e98a93eb | 1531 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1532 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1533 | |
d5eecefb | 1534 | if (NILP (Vthis_command)) |
284f4730 JB |
1535 | { |
1536 | /* nil means key is undefined. */ | |
1537 | bitch_at_user (); | |
c5fdd383 | 1538 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1539 | update_mode_lines = 1; |
d8bcf58e | 1540 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1541 | } |
1542 | else | |
1543 | { | |
d8bcf58e | 1544 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1545 | { |
75045dcb RS |
1546 | /* In case we jump to directly_done. */ |
1547 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1548 | ||
284f4730 JB |
1549 | /* Recognize some common commands in common situations and |
1550 | do them directly. */ | |
d5eecefb | 1551 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1552 | { |
51ad8a68 | 1553 | struct Lisp_Char_Table *dp |
284f4730 | 1554 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1555 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1556 | SET_PT (PT + 1); |
0f7a8fee | 1557 | if ((dp |
82ba47d7 | 1558 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1559 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1560 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1561 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1562 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1563 | /* To extract the case of continuation on |
1564 | wide-column characters. */ | |
8458ede6 | 1565 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1566 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1567 | >= MODIFF) | |
598ba4c7 RS |
1568 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1569 | >= OVERLAY_MODIFF) | |
284f4730 | 1570 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1571 | == PT - 1) |
284f4730 JB |
1572 | && !windows_or_buffers_changed |
1573 | && EQ (current_buffer->selective_display, Qnil) | |
1574 | && !detect_input_pending () | |
962ae636 | 1575 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1576 | && NILP (Vexecuting_macro)) |
e35b6123 | 1577 | direct_output_forward_char (1); |
284f4730 JB |
1578 | goto directly_done; |
1579 | } | |
d5eecefb | 1580 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1581 | { |
51ad8a68 | 1582 | struct Lisp_Char_Table *dp |
284f4730 | 1583 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1584 | SET_PT (PT - 1); |
aaf35234 | 1585 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1586 | if ((dp |
ca873d73 | 1587 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1588 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1589 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1590 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1591 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1592 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1593 | >= MODIFF) | |
598ba4c7 RS |
1594 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1595 | >= OVERLAY_MODIFF) | |
284f4730 | 1596 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1597 | == PT + 1) |
284f4730 JB |
1598 | && !windows_or_buffers_changed |
1599 | && EQ (current_buffer->selective_display, Qnil) | |
1600 | && !detect_input_pending () | |
962ae636 | 1601 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1602 | && NILP (Vexecuting_macro)) |
e35b6123 | 1603 | direct_output_forward_char (-1); |
284f4730 JB |
1604 | goto directly_done; |
1605 | } | |
d5eecefb | 1606 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1607 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1608 | && INTEGERP (last_command_char)) |
284f4730 | 1609 | { |
89599794 | 1610 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1611 | int value; |
fc9cce4e RS |
1612 | if (NILP (Vexecuting_macro) |
1613 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1614 | { |
1615 | if (!nonundocount || nonundocount >= 20) | |
1616 | { | |
1617 | Fundo_boundary (); | |
1618 | nonundocount = 0; | |
1619 | } | |
1620 | nonundocount++; | |
1621 | } | |
7ee32cda | 1622 | |
fc9cce4e RS |
1623 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1624 | < MODIFF) | |
598ba4c7 RS |
1625 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1626 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1627 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1628 | != PT) | |
4c61f38e | 1629 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1630 | || windows_or_buffers_changed |
1631 | || !EQ (current_buffer->selective_display, Qnil) | |
1632 | || detect_input_pending () | |
962ae636 | 1633 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1634 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1635 | |
fc9cce4e | 1636 | value = internal_self_insert (c, 0); |
7ee32cda | 1637 | |
fc9cce4e RS |
1638 | if (value == 2) |
1639 | nonundocount = 0; | |
1640 | ||
7ee32cda GM |
1641 | /* VALUE == 1 when AFTER-CHANGE functions are |
1642 | installed which is the case most of the time | |
1643 | because FONT-LOCK installs one. */ | |
1644 | if (!lose && !value) | |
e35b6123 | 1645 | direct_output_for_insert (c); |
284f4730 JB |
1646 | goto directly_done; |
1647 | } | |
1648 | } | |
1649 | ||
1650 | /* Here for a command that isn't executed directly */ | |
1651 | ||
7ee32cda | 1652 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1653 | if (display_hourglass_p) |
1654 | start_hourglass (); | |
7ee32cda GM |
1655 | #endif |
1656 | ||
284f4730 | 1657 | nonundocount = 0; |
d8bcf58e | 1658 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1659 | Fundo_boundary (); |
d5eecefb | 1660 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1661 | |
1662 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1663 | /* Do not check display_hourglass_p here, because |
1664 | Fcommand_execute could change it, but we should cancel | |
1665 | hourglass cursor anyway. */ | |
1666 | cancel_hourglass (); | |
d0c48478 | 1667 | #endif |
284f4730 | 1668 | } |
a764a753 | 1669 | directly_done: ; |
75045dcb | 1670 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1671 | |
84ee6048 RS |
1672 | /* Note that the value cell will never directly contain nil |
1673 | if the symbol is a local variable. */ | |
1674 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1675 | safe_run_hooks (Qpost_command_hook); | |
1676 | ||
8f12e41d GM |
1677 | /* If displaying a message, resize the echo area window to fit |
1678 | that message's size exactly. */ | |
1679 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1680 | resize_echo_area_exactly (); |
8f12e41d | 1681 | |
84ee6048 RS |
1682 | if (!NILP (Vdeferred_action_list)) |
1683 | safe_run_hooks (Qdeferred_action_function); | |
1684 | ||
1685 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1686 | { | |
1687 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1688 | && NILP (Vunread_input_method_events) |
1689 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1690 | && NILP (Vexecuting_macro) |
1691 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1692 | safe_run_hooks (Qpost_command_idle_hook); | |
1693 | } | |
1694 | ||
284f4730 | 1695 | /* If there is a prefix argument, |
6c7178b9 KH |
1696 | 1) We don't want Vlast_command to be ``universal-argument'' |
1697 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1698 | 2) we want to leave echoing on so that the prefix will be |
1699 | echoed as part of this key sequence, so don't call | |
1700 | cancel_echoing, and | |
1701 | 3) we want to leave this_command_key_count non-zero, so that | |
1702 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1703 | not echo it a second time. |
1704 | ||
1705 | If the command didn't actually create a prefix arg, | |
1706 | but is merely a frame event that is transparent to prefix args, | |
1707 | then the above doesn't apply. */ | |
1708 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1709 | { |
d5eecefb RS |
1710 | current_kboard->Vlast_command = Vthis_command; |
1711 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1712 | cancel_echoing (); |
1713 | this_command_key_count = 0; | |
6321824f | 1714 | this_single_command_key_start = 0; |
284f4730 | 1715 | } |
86e5706b | 1716 | |
88ce066e | 1717 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1718 | { |
1719 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1720 | { | |
1721 | current_buffer->mark_active = Qnil; | |
1722 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1723 | } | |
1724 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1725 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1726 | } | |
ff4b06d3 KH |
1727 | |
1728 | finalize: | |
adf5cb9c KH |
1729 | |
1730 | if (current_buffer == prev_buffer | |
1731 | && last_point_position != PT | |
1732 | && NILP (Vdisable_point_adjustment) | |
1733 | && NILP (Vglobal_disable_point_adjustment)) | |
1734 | adjust_point_for_property (last_point_position); | |
1735 | ||
ff4b06d3 KH |
1736 | /* Install chars successfully executed in kbd macro. */ |
1737 | ||
d8bcf58e KH |
1738 | if (!NILP (current_kboard->defining_kbd_macro) |
1739 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1740 | finalize_kbd_macro_chars (); |
1741 | ||
c5fdd383 | 1742 | #ifdef MULTI_KBOARD |
604ccd1d | 1743 | if (!was_locked) |
1e8bd3da | 1744 | any_kboard_state (); |
ff4b06d3 | 1745 | #endif |
284f4730 JB |
1746 | } |
1747 | } | |
1c9784c9 | 1748 | |
adf5cb9c KH |
1749 | extern Lisp_Object Qcomposition, Qdisplay; |
1750 | ||
1751 | /* Adjust point to a boundary of a region that has such a property | |
1752 | that should be treated intangible. For the moment, we check | |
1753 | `composition' and `display' property. LAST_PT is the last position | |
1754 | of point. */ | |
1755 | ||
1756 | static void | |
1757 | adjust_point_for_property (last_pt) | |
1758 | int last_pt; | |
1759 | { | |
1760 | int start, end; | |
1761 | Lisp_Object val; | |
1762 | int check_composition = 1, check_display = 1; | |
1763 | ||
1764 | while (check_composition || check_display) | |
1765 | { | |
1766 | if (check_composition | |
1767 | && PT > BEGV && PT < ZV | |
1768 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1769 | && COMPOSITION_VALID_P (start, end, val) | |
1770 | && start < PT && end > PT | |
1771 | && (last_pt <= start || last_pt >= end)) | |
1772 | { | |
1773 | if (PT < last_pt) | |
1774 | SET_PT (start); | |
1775 | else | |
1776 | SET_PT (end); | |
1777 | check_display = 1; | |
1778 | } | |
1779 | check_composition = 0; | |
1780 | if (check_display | |
1781 | && PT > BEGV && PT < ZV | |
1782 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
3e9ac4b7 | 1783 | && display_prop_intangible_p (val) |
adf5cb9c KH |
1784 | && start < PT && end > PT |
1785 | && (last_pt <= start || last_pt >= end)) | |
1786 | { | |
1787 | if (PT < last_pt) | |
1788 | SET_PT (start); | |
1789 | else | |
1790 | SET_PT (end); | |
1791 | check_composition = 1; | |
1792 | } | |
1793 | check_display = 0; | |
1794 | } | |
1795 | } | |
1796 | ||
0bc3db2b RS |
1797 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1798 | ||
1799 | static Lisp_Object | |
1800 | safe_run_hooks_1 (hook) | |
1801 | Lisp_Object hook; | |
1802 | { | |
1803 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1804 | } | |
1805 | ||
1806 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1807 | ||
1808 | static Lisp_Object | |
1809 | safe_run_hooks_error (data) | |
1810 | Lisp_Object data; | |
1811 | { | |
30690496 | 1812 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1813 | } |
1814 | ||
1c9784c9 KH |
1815 | /* If we get an error while running the hook, cause the hook variable |
1816 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1817 | to mysteriously evaporate. */ | |
0bc3db2b | 1818 | |
68f297c5 | 1819 | void |
1c9784c9 | 1820 | safe_run_hooks (hook) |
a98ea3f9 | 1821 | Lisp_Object hook; |
1c9784c9 KH |
1822 | { |
1823 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1824 | specbind (Qinhibit_quit, hook); |
1825 | ||
e702932d | 1826 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1827 | |
1828 | unbind_to (count, Qnil); | |
1829 | } | |
8a9f5d3c | 1830 | |
284f4730 | 1831 | \f |
8a9f5d3c GM |
1832 | /* Number of seconds between polling for input. This is a Lisp |
1833 | variable that can be bound. */ | |
1834 | ||
31ade731 | 1835 | EMACS_INT polling_period; |
284f4730 | 1836 | |
eb8c3be9 | 1837 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1838 | |
284f4730 JB |
1839 | int poll_suppress_count; |
1840 | ||
8a9f5d3c GM |
1841 | /* Asynchronous timer for polling. */ |
1842 | ||
1843 | struct atimer *poll_timer; | |
1844 | ||
284f4730 | 1845 | |
36922b18 RS |
1846 | #ifdef POLL_FOR_INPUT |
1847 | ||
8a9f5d3c GM |
1848 | /* Poll for input, so what we catch a C-g if it comes in. This |
1849 | function is called from x_make_frame_visible, see comment | |
1850 | there. */ | |
284f4730 | 1851 | |
8a9f5d3c GM |
1852 | void |
1853 | poll_for_input_1 () | |
284f4730 | 1854 | { |
9ac0d9e0 JB |
1855 | if (interrupt_input_blocked == 0 |
1856 | && !waiting_for_input) | |
1857 | read_avail_input (0); | |
284f4730 JB |
1858 | } |
1859 | ||
8a9f5d3c GM |
1860 | /* Timer callback function for poll_timer. TIMER is equal to |
1861 | poll_timer. */ | |
1862 | ||
1863 | void | |
1864 | poll_for_input (timer) | |
1865 | struct atimer *timer; | |
1866 | { | |
1867 | if (poll_suppress_count == 0) | |
1868 | poll_for_input_1 (); | |
1869 | } | |
1870 | ||
1871 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1872 | |
1873 | /* Begin signals to poll for input, if they are appropriate. | |
1874 | This function is called unconditionally from various places. */ | |
1875 | ||
07a59269 | 1876 | void |
284f4730 JB |
1877 | start_polling () |
1878 | { | |
1879 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1880 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1881 | { |
8a9f5d3c GM |
1882 | /* Turn alarm handling on unconditionally. It might have |
1883 | been turned off in process.c. */ | |
1884 | turn_on_atimers (1); | |
1885 | ||
1886 | /* If poll timer doesn't exist, are we need one with | |
1887 | a different interval, start a new one. */ | |
1888 | if (poll_timer == NULL | |
1889 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1890 | { |
8a9f5d3c GM |
1891 | EMACS_TIME interval; |
1892 | ||
1893 | if (poll_timer) | |
1894 | cancel_atimer (poll_timer); | |
1895 | ||
1896 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1897 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1898 | poll_for_input, NULL); | |
284f4730 | 1899 | } |
8a9f5d3c GM |
1900 | |
1901 | /* Let the timer's callback function poll for input | |
1902 | if this becomes zero. */ | |
1903 | --poll_suppress_count; | |
284f4730 JB |
1904 | } |
1905 | #endif | |
1906 | } | |
1907 | ||
1d3195db RS |
1908 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1909 | ||
1910 | int | |
1911 | input_polling_used () | |
1912 | { | |
1913 | #ifdef POLL_FOR_INPUT | |
1914 | return read_socket_hook && !interrupt_input; | |
1915 | #else | |
1916 | return 0; | |
1917 | #endif | |
1918 | } | |
1919 | ||
284f4730 JB |
1920 | /* Turn off polling. */ |
1921 | ||
07a59269 | 1922 | void |
284f4730 JB |
1923 | stop_polling () |
1924 | { | |
1925 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1926 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1927 | ++poll_suppress_count; |
284f4730 JB |
1928 | #endif |
1929 | } | |
fe8aeef3 RS |
1930 | |
1931 | /* Set the value of poll_suppress_count to COUNT | |
1932 | and start or stop polling accordingly. */ | |
1933 | ||
1934 | void | |
1935 | set_poll_suppress_count (count) | |
1936 | int count; | |
1937 | { | |
1938 | #ifdef POLL_FOR_INPUT | |
1939 | if (count == 0 && poll_suppress_count != 0) | |
1940 | { | |
1941 | poll_suppress_count = 1; | |
1942 | start_polling (); | |
1943 | } | |
1944 | else if (count != 0 && poll_suppress_count == 0) | |
1945 | { | |
1946 | stop_polling (); | |
1947 | } | |
1948 | poll_suppress_count = count; | |
1949 | #endif | |
1950 | } | |
f4eef8b4 | 1951 | |
d0a57728 RS |
1952 | /* Bind polling_period to a value at least N. |
1953 | But don't decrease it. */ | |
1954 | ||
07a59269 | 1955 | void |
f4eef8b4 RS |
1956 | bind_polling_period (n) |
1957 | int n; | |
1958 | { | |
1959 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1960 | int new = polling_period; |
1961 | ||
1962 | if (n > new) | |
1963 | new = n; | |
1964 | ||
6fe007f7 | 1965 | stop_other_atimers (poll_timer); |
f4eef8b4 | 1966 | stop_polling (); |
d0a57728 RS |
1967 | specbind (Qpolling_period, make_number (new)); |
1968 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1969 | start_polling (); |
1970 | #endif | |
1971 | } | |
284f4730 | 1972 | \f |
6da3dd3a RS |
1973 | /* Apply the control modifier to CHARACTER. */ |
1974 | ||
faf5e407 JB |
1975 | int |
1976 | make_ctrl_char (c) | |
1977 | int c; | |
1978 | { | |
d205953b JB |
1979 | /* Save the upper bits here. */ |
1980 | int upper = c & ~0177; | |
1981 | ||
1982 | c &= 0177; | |
1983 | ||
1984 | /* Everything in the columns containing the upper-case letters | |
1985 | denotes a control character. */ | |
1986 | if (c >= 0100 && c < 0140) | |
1987 | { | |
1988 | int oc = c; | |
1989 | c &= ~0140; | |
1990 | /* Set the shift modifier for a control char | |
1991 | made from a shifted letter. But only for letters! */ | |
1992 | if (oc >= 'A' && oc <= 'Z') | |
1993 | c |= shift_modifier; | |
1994 | } | |
1995 | ||
1996 | /* The lower-case letters denote control characters too. */ | |
1997 | else if (c >= 'a' && c <= 'z') | |
1998 | c &= ~0140; | |
1999 | ||
2000 | /* Include the bits for control and shift | |
2001 | only if the basic ASCII code can't indicate them. */ | |
2002 | else if (c >= ' ') | |
2003 | c |= ctrl_modifier; | |
2004 | ||
2005 | /* Replace the high bits. */ | |
2006 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2007 | |
2008 | return c; | |
2009 | } | |
2010 | ||
d4e68eea GM |
2011 | /* Display help echo in the echo area. |
2012 | ||
8dfd92c9 GM |
2013 | HELP a string means display that string, HELP nil means clear the |
2014 | help echo. If HELP is a function, call it with OBJECT and POS as | |
2015 | arguments; the function should return a help string or nil for | |
2016 | none. For all other types of HELP evaluate it to obtain a string. | |
2017 | ||
2190735a GM |
2018 | WINDOW is the window in which the help was generated, if any. |
2019 | It is nil if not in a window. | |
2020 | ||
5b2ec2d0 GM |
2021 | If OBJECT is a buffer, POS is the position in the buffer where the |
2022 | `help-echo' text property was found. | |
2023 | ||
2024 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2025 | and POS is the position in the overlay's buffer under the mouse. | |
2026 | ||
2027 | If OBJECT is a string (an overlay string or a string displayed with | |
2028 | the `display' property). POS is the position in that string under | |
2029 | the mouse. | |
d4e68eea | 2030 | |
27fd22dc | 2031 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2032 | echo overwrites a keystroke echo currently displayed in the echo |
2033 | area. | |
2034 | ||
8dfd92c9 GM |
2035 | Note: this function may only be called with HELP nil or a string |
2036 | from X code running asynchronously. */ | |
d4e68eea | 2037 | |
31f84d03 | 2038 | void |
2190735a GM |
2039 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2040 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2041 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2042 | { |
8dfd92c9 | 2043 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2044 | { |
8dfd92c9 GM |
2045 | if (FUNCTIONP (help)) |
2046 | { | |
2190735a | 2047 | Lisp_Object args[4]; |
8dfd92c9 | 2048 | args[0] = help; |
2190735a GM |
2049 | args[1] = window; |
2050 | args[2] = object; | |
2051 | args[3] = pos; | |
1db0076e | 2052 | help = safe_call (4, args); |
8dfd92c9 GM |
2053 | } |
2054 | else | |
1db0076e | 2055 | help = safe_eval (help); |
8dfd92c9 GM |
2056 | |
2057 | if (!STRINGP (help)) | |
d4e68eea | 2058 | return; |
31f84d03 SM |
2059 | } |
2060 | ||
8dfd92c9 | 2061 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2062 | { |
2063 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2064 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2065 | else if (/* Don't overwrite minibuffer contents. */ |
2066 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2067 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2068 | && (NILP (echo_message_buffer) |
2069 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2070 | /* Don't overwrite a prompt. */ |
2071 | && !cursor_in_echo_area) | |
2072 | { | |
8dfd92c9 | 2073 | if (STRINGP (help)) |
d4e68eea | 2074 | { |
f0c1cc56 GM |
2075 | int count = BINDING_STACK_SIZE (); |
2076 | ||
2077 | if (!help_echo_showing_p) | |
2078 | Vpre_help_message = current_message (); | |
2079 | ||
d4e68eea | 2080 | specbind (Qmessage_truncate_lines, Qt); |
5ca020fc | 2081 | message3_nolog (help, STRING_BYTES (XSTRING (help)), |
8dfd92c9 | 2082 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2083 | unbind_to (count, Qnil); |
2084 | } | |
f0c1cc56 GM |
2085 | else if (STRINGP (Vpre_help_message)) |
2086 | { | |
2087 | message3_nolog (Vpre_help_message, | |
2088 | STRING_BYTES (XSTRING (Vpre_help_message)), | |
2089 | STRING_MULTIBYTE (Vpre_help_message)); | |
2090 | Vpre_help_message = Qnil; | |
2091 | } | |
d4e68eea | 2092 | else |
f0c1cc56 | 2093 | message (0); |
d4e68eea | 2094 | } |
5295a500 GM |
2095 | |
2096 | help_echo_showing_p = STRINGP (help); | |
d4e68eea | 2097 | } |
31f84d03 SM |
2098 | } |
2099 | ||
faf5e407 JB |
2100 | |
2101 | \f | |
284f4730 JB |
2102 | /* Input of single characters from keyboard */ |
2103 | ||
2104 | Lisp_Object print_help (); | |
2105 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2106 | static void record_char (); |
284f4730 | 2107 | |
c5fdd383 KH |
2108 | #ifdef MULTI_KBOARD |
2109 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2110 | #endif |
beecf6a1 | 2111 | |
284f4730 JB |
2112 | /* read a character from the keyboard; call the redisplay if needed */ |
2113 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2114 | -1 means do not do redisplay, but do do autosaving. | |
2115 | 1 means do both. */ | |
2116 | ||
7d6de002 RS |
2117 | /* The arguments MAPS and NMAPS are for menu prompting. |
2118 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2119 | ||
2120 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2121 | the first event of a key sequence (or not reading a key sequence). |
2122 | If PREV_EVENT is t, that is a "magic" value that says | |
2123 | not to run input methods, but in other respects to act as if | |
2124 | not reading a key sequence. | |
7d6de002 | 2125 | |
83d68044 | 2126 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2127 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2128 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2129 | |
2130 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2131 | |
284f4730 | 2132 | Lisp_Object |
7d6de002 | 2133 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2134 | int commandflag; |
7d6de002 RS |
2135 | int nmaps; |
2136 | Lisp_Object *maps; | |
2137 | Lisp_Object prev_event; | |
2138 | int *used_mouse_menu; | |
284f4730 | 2139 | { |
8c907a56 | 2140 | volatile Lisp_Object c; |
284f4730 | 2141 | int count; |
410d4de9 | 2142 | jmp_buf local_getcjmp; |
284f4730 | 2143 | jmp_buf save_jump; |
8c907a56 | 2144 | volatile int key_already_recorded = 0; |
017c7cb6 | 2145 | Lisp_Object tem, save; |
8c907a56 GM |
2146 | volatile Lisp_Object previous_echo_area_message; |
2147 | volatile Lisp_Object also_record; | |
2148 | volatile int reread; | |
d5eecefb | 2149 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2150 | EMACS_TIME last_idle_start; |
7c3bc944 | 2151 | |
e4fe371d | 2152 | also_record = Qnil; |
284f4730 | 2153 | |
71918b75 RS |
2154 | before_command_key_count = this_command_key_count; |
2155 | before_command_echo_length = echo_length (); | |
ef6661f7 | 2156 | c = Qnil; |
7ee32cda | 2157 | previous_echo_area_message = Qnil; |
71918b75 | 2158 | |
7ee32cda | 2159 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2160 | |
7f07d5ca RS |
2161 | retry: |
2162 | ||
7d18f9ae RS |
2163 | reread = 0; |
2164 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2165 | { |
7539e11f | 2166 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2167 | Vunread_post_input_method_events |
7539e11f | 2168 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2169 | |
2479e91e RS |
2170 | /* Undo what read_char_x_menu_prompt did when it unread |
2171 | additional keys returned by Fx_popup_menu. */ | |
2172 | if (CONSP (c) | |
7539e11f KR |
2173 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2174 | && NILP (XCDR (c))) | |
2175 | c = XCAR (c); | |
2479e91e | 2176 | |
7d18f9ae RS |
2177 | reread = 1; |
2178 | goto reread_first; | |
284f4730 JB |
2179 | } |
2180 | ||
86e5706b RS |
2181 | if (unread_command_char != -1) |
2182 | { | |
18cd2eeb | 2183 | XSETINT (c, unread_command_char); |
86e5706b RS |
2184 | unread_command_char = -1; |
2185 | ||
7d18f9ae RS |
2186 | reread = 1; |
2187 | goto reread_first; | |
2188 | } | |
2189 | ||
2190 | if (CONSP (Vunread_command_events)) | |
2191 | { | |
7539e11f KR |
2192 | c = XCAR (Vunread_command_events); |
2193 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2194 | |
2195 | /* Undo what read_char_x_menu_prompt did when it unread | |
2196 | additional keys returned by Fx_popup_menu. */ | |
2197 | if (CONSP (c) | |
f4e05d97 GM |
2198 | && EQ (XCDR (c), Qdisabled) |
2199 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2200 | c = XCAR (c); |
f4e05d97 | 2201 | |
d17e49a8 GM |
2202 | /* If the queued event is something that used the mouse, |
2203 | set used_mouse_menu accordingly. */ | |
2204 | if (used_mouse_menu | |
2205 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2206 | *used_mouse_menu = 1; | |
2207 | ||
7d18f9ae RS |
2208 | reread = 1; |
2209 | goto reread_for_input_method; | |
2210 | } | |
2211 | ||
2212 | if (CONSP (Vunread_input_method_events)) | |
2213 | { | |
7539e11f KR |
2214 | c = XCAR (Vunread_input_method_events); |
2215 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2216 | |
2217 | /* Undo what read_char_x_menu_prompt did when it unread | |
2218 | additional keys returned by Fx_popup_menu. */ | |
2219 | if (CONSP (c) | |
7539e11f KR |
2220 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2221 | && NILP (XCDR (c))) | |
2222 | c = XCAR (c); | |
7d18f9ae RS |
2223 | reread = 1; |
2224 | goto reread_for_input_method; | |
86e5706b RS |
2225 | } |
2226 | ||
71918b75 RS |
2227 | /* If there is no function key translated before |
2228 | reset-this-command-lengths takes effect, forget about it. */ | |
2229 | before_command_restore_flag = 0; | |
2230 | ||
284f4730 JB |
2231 | if (!NILP (Vexecuting_macro)) |
2232 | { | |
fce33686 JB |
2233 | /* We set this to Qmacro; since that's not a frame, nobody will |
2234 | try to switch frames on us, and the selected window will | |
2235 | remain unchanged. | |
2236 | ||
2237 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2238 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2239 | real event came from. Normally, a switch-frame event selects |
2240 | internal_last_event_frame after each command is read, but | |
2241 | events read from a macro should never cause a new frame to be | |
2242 | selected. */ | |
4c52b668 | 2243 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2244 | |
663258f2 JB |
2245 | /* Exit the macro if we are at the end. |
2246 | Also, some things replace the macro with t | |
2247 | to force an early exit. */ | |
2248 | if (EQ (Vexecuting_macro, Qt) | |
2249 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2250 | { |
18cd2eeb | 2251 | XSETINT (c, -1); |
7c3bc944 | 2252 | RETURN_UNGCPRO (c); |
284f4730 | 2253 | } |
df0f2ba1 | 2254 | |
284f4730 | 2255 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2256 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2257 | && (XINT (c) & 0x80)) |
bb9e9bed | 2258 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2259 | |
284f4730 JB |
2260 | executing_macro_index++; |
2261 | ||
2262 | goto from_macro; | |
2263 | } | |
2264 | ||
cd21b839 JB |
2265 | if (!NILP (unread_switch_frame)) |
2266 | { | |
2267 | c = unread_switch_frame; | |
2268 | unread_switch_frame = Qnil; | |
2269 | ||
2270 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2271 | again, so we do not set `reread'. */ |
f4255cd1 | 2272 | goto reread_first; |
cd21b839 JB |
2273 | } |
2274 | ||
adc1d5c8 | 2275 | /* if redisplay was requested */ |
6e4e64a8 RS |
2276 | if (commandflag >= 0) |
2277 | { | |
adc1d5c8 RS |
2278 | /* If there is pending input, process any events which are not |
2279 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2280 | if (input_pending |
2281 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2282 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2283 | |
adc1d5c8 RS |
2284 | /* Redisplay if no pending input. */ |
2285 | while (!input_pending) | |
2286 | { | |
5295a500 | 2287 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2288 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2289 | else |
2290 | redisplay (); | |
adc1d5c8 RS |
2291 | |
2292 | if (!input_pending) | |
2293 | /* Normal case: no input arrived during redisplay. */ | |
2294 | break; | |
2295 | ||
2296 | /* Input arrived and pre-empted redisplay. | |
2297 | Process any events which are not user-visible. */ | |
2298 | swallow_events (0); | |
2299 | /* If that cleared input_pending, try again to redisplay. */ | |
2300 | } | |
6e4e64a8 | 2301 | } |
e9bf89a0 | 2302 | |
59a84f8e GM |
2303 | /* Message turns off echoing unless more keystrokes turn it on again. |
2304 | ||
2305 | The code in 20.x for the condition was | |
2306 | ||
2307 | 1. echo_area_glyphs && *echo_area_glyphs | |
2308 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2309 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2310 | ||
2311 | (1) means there's a current message displayed | |
2312 | ||
2313 | (2) means it's not the message from echoing from the current | |
2314 | kboard. | |
2315 | ||
2316 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause | |
2317 | is set to a non-null value. This is done in read_char and it is | |
2318 | set to echo_area_glyphs after a call to echo_char. That means | |
2319 | ok_to_echo_at_next_pause is either null or | |
2320 | current_kboard->echobuf with the appropriate current_kboard at | |
2321 | that time. | |
2322 | ||
2323 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2324 | must be either null, or the current message isn't from echoing at | |
2325 | all, or it's from echoing from a different kboard than the | |
2326 | current one. */ | |
2327 | ||
27fd22dc | 2328 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2329 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2330 | && (/* And it's either not from echoing. */ |
2331 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2332 | /* Or it's an echo from a different kboard. */ | |
2333 | || echo_kboard != current_kboard | |
2334 | /* Or we explicitly allow overwriting whatever there is. */ | |
2335 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2336 | cancel_echoing (); |
410d4de9 | 2337 | else |
410d4de9 | 2338 | echo_dash (); |
59a84f8e | 2339 | |
410d4de9 RS |
2340 | /* Try reading a character via menu prompting in the minibuf. |
2341 | Try this before the sit-for, because the sit-for | |
2342 | would do the wrong thing if we are supposed to do | |
2343 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2344 | after a mouse event so don't try a minibuf menu. */ | |
2345 | c = Qnil; | |
2346 | if (nmaps > 0 && INTERACTIVE | |
2347 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2348 | /* Don't bring up a menu if we already have another event. */ | |
2349 | && NILP (Vunread_command_events) | |
2350 | && unread_command_char < 0 | |
4ec4ed6a | 2351 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2352 | { |
2353 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2354 | if (! NILP (c)) | |
2355 | { | |
2356 | key_already_recorded = 1; | |
2357 | goto non_reread_1; | |
2358 | } | |
2359 | } | |
284f4730 | 2360 | |
410d4de9 RS |
2361 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2362 | We will do that below, temporarily for short sections of code, | |
2363 | when appropriate. local_getcjmp must be in effect | |
2364 | around any call to sit_for or kbd_buffer_get_event; | |
2365 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2366 | |
410d4de9 | 2367 | if (_setjmp (local_getcjmp)) |
284f4730 | 2368 | { |
18cd2eeb | 2369 | XSETINT (c, quit_char); |
788f89eb | 2370 | internal_last_event_frame = selected_frame; |
4c52b668 | 2371 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2372 | /* If we report the quit char as an event, |
2373 | don't do so more than once. */ | |
2374 | if (!NILP (Vinhibit_quit)) | |
2375 | Vquit_flag = Qnil; | |
284f4730 | 2376 | |
c5fdd383 | 2377 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2378 | { |
788f89eb | 2379 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2380 | if (kb != current_kboard) |
df0f2ba1 | 2381 | { |
f3fbd155 | 2382 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2383 | /* We shouldn't get here if we were in single-kboard mode! */ |
2384 | if (single_kboard) | |
df0f2ba1 | 2385 | abort (); |
f3fbd155 KR |
2386 | if (CONSP (link)) |
2387 | { | |
2388 | while (CONSP (XCDR (link))) | |
2389 | link = XCDR (link); | |
2390 | if (!NILP (XCDR (link))) | |
2391 | abort (); | |
2392 | } | |
2393 | if (!CONSP (link)) | |
2394 | kb->kbd_queue = Fcons (c, Qnil); | |
2395 | else | |
2396 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2397 | kb->kbd_queue_has_data = 1; |
2398 | current_kboard = kb; | |
ef6661f7 RS |
2399 | /* This is going to exit from read_char |
2400 | so we had better get rid of this frame's stuff. */ | |
2401 | UNGCPRO; | |
c5fdd383 | 2402 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2403 | } |
2404 | } | |
2405 | #endif | |
284f4730 JB |
2406 | goto non_reread; |
2407 | } | |
2408 | ||
d9d4c147 KH |
2409 | timer_start_idle (); |
2410 | ||
284f4730 JB |
2411 | /* If in middle of key sequence and minibuffer not active, |
2412 | start echoing if enough time elapses. */ | |
410d4de9 | 2413 | |
7ee32cda GM |
2414 | if (minibuf_level == 0 |
2415 | && !current_kboard->immediate_echo | |
6c6083a9 | 2416 | && this_command_key_count > 0 |
27203ead | 2417 | && ! noninteractive |
f2647d04 DL |
2418 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2419 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2420 | && (/* No message. */ |
2421 | NILP (echo_area_buffer[0]) | |
2422 | /* Or empty message. */ | |
2423 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2424 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2425 | /* Or already echoing from same kboard. */ | |
2426 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2427 | /* Or not echoing before and echoing allowed. */ | |
2428 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2429 | { |
2430 | Lisp_Object tem0; | |
985f9f66 | 2431 | |
7d6de002 RS |
2432 | /* After a mouse event, start echoing right away. |
2433 | This is because we are probably about to display a menu, | |
2434 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2435 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2436 | echo_now (); |
7d6de002 RS |
2437 | else |
2438 | { | |
39aab679 DL |
2439 | int sec, usec; |
2440 | double duration = extract_float (Vecho_keystrokes); | |
2441 | sec = (int) duration; | |
15fa88ab | 2442 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2443 | save_getcjmp (save_jump); |
2444 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2445 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2446 | restore_getcjmp (save_jump); |
303b5b3f RS |
2447 | if (EQ (tem0, Qt) |
2448 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2449 | echo_now (); |
7d6de002 | 2450 | } |
284f4730 JB |
2451 | } |
2452 | ||
410d4de9 | 2453 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2454 | |
2455 | if (commandflag != 0 | |
2456 | && auto_save_interval > 0 | |
c43b1734 | 2457 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2458 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2459 | { |
284f4730 | 2460 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2461 | /* Hooks can actually change some buffers in auto save. */ |
2462 | redisplay (); | |
284f4730 JB |
2463 | } |
2464 | ||
8150596a | 2465 | /* Try reading using an X menu. |
24597608 RS |
2466 | This is never confused with reading using the minibuf |
2467 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2468 | does not pass on any keymaps. */ | |
410d4de9 | 2469 | |
24597608 | 2470 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2471 | && !NILP (prev_event) |
2472 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2473 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2474 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2475 | /* Don't bring up a menu if we already have another event. */ |
2476 | && NILP (Vunread_command_events) | |
b8556aee | 2477 | && unread_command_char < 0) |
8eb4d8ef RS |
2478 | { |
2479 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2480 | ||
2481 | /* Now that we have read an event, Emacs is not idle. */ | |
2482 | timer_stop_idle (); | |
2483 | ||
7c3bc944 | 2484 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2485 | } |
7d6de002 | 2486 | |
410d4de9 RS |
2487 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2488 | ||
26c1639e | 2489 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2490 | { |
2491 | int delay_level, buffer_size; | |
2492 | ||
410d4de9 RS |
2493 | /* Slow down auto saves logarithmically in size of current buffer, |
2494 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2495 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2496 | last_non_minibuf_size = Z - BEG; | |
2497 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2498 | delay_level = 0; | |
2499 | while (buffer_size > 64) | |
2500 | delay_level++, buffer_size -= buffer_size >> 2; | |
2501 | if (delay_level < 4) delay_level = 4; | |
2502 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2503 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2504 | ||
2505 | /* Auto save if enough time goes by without input. */ | |
2506 | if (commandflag != 0 | |
c43b1734 | 2507 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2508 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2509 | && XINT (Vauto_save_timeout) > 0) |
2510 | { | |
2511 | Lisp_Object tem0; | |
410d4de9 RS |
2512 | |
2513 | save_getcjmp (save_jump); | |
2514 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2515 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2516 | 0, 1, 1, 0); |
410d4de9 RS |
2517 | restore_getcjmp (save_jump); |
2518 | ||
303b5b3f RS |
2519 | if (EQ (tem0, Qt) |
2520 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2521 | { |
7d6de002 | 2522 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2523 | |
2524 | /* If we have auto-saved and there is still no input | |
2525 | available, garbage collect if there has been enough | |
2526 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2527 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2528 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2529 | Fgarbage_collect (); |
410d4de9 | 2530 | |
ef8fd672 | 2531 | redisplay (); |
7d6de002 RS |
2532 | } |
2533 | } | |
2534 | } | |
284f4730 | 2535 | |
303b5b3f RS |
2536 | /* If this has become non-nil here, it has been set by a timer |
2537 | or sentinel or filter. */ | |
2538 | if (CONSP (Vunread_command_events)) | |
2539 | { | |
7539e11f KR |
2540 | c = XCAR (Vunread_command_events); |
2541 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2542 | } |
2543 | ||
410d4de9 RS |
2544 | /* Read something from current KBOARD's side queue, if possible. */ |
2545 | ||
beecf6a1 | 2546 | if (NILP (c)) |
1e12dd87 | 2547 | { |
c5fdd383 | 2548 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2549 | { |
c5fdd383 | 2550 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2551 | abort (); |
7539e11f | 2552 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2553 | current_kboard->kbd_queue |
7539e11f | 2554 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2555 | if (NILP (current_kboard->kbd_queue)) |
2556 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2557 | input_pending = readable_events (0); |
4c52b668 KH |
2558 | if (EVENT_HAS_PARAMETERS (c) |
2559 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2560 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2561 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2562 | } |
1e8bd3da RS |
2563 | } |
2564 | ||
c5fdd383 | 2565 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2566 | /* If current_kboard's side queue is empty check the other kboards. |
2567 | If one of them has data that we have not yet seen here, | |
2568 | switch to it and process the data waiting for it. | |
2569 | ||
2570 | Note: if the events queued up for another kboard | |
2571 | have already been seen here, and therefore are not a complete command, | |
2572 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2573 | That's to avoid an infinite loop switching between kboards here. */ | |
2574 | if (NILP (c) && !single_kboard) | |
2575 | { | |
2576 | KBOARD *kb; | |
2577 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2578 | if (kb->kbd_queue_has_data) | |
2579 | { | |
2580 | current_kboard = kb; | |
ef6661f7 RS |
2581 | /* This is going to exit from read_char |
2582 | so we had better get rid of this frame's stuff. */ | |
2583 | UNGCPRO; | |
1e8bd3da RS |
2584 | longjmp (wrong_kboard_jmpbuf, 1); |
2585 | } | |
2586 | } | |
df0f2ba1 KH |
2587 | #endif |
2588 | ||
410d4de9 RS |
2589 | wrong_kboard: |
2590 | ||
2591 | stop_polling (); | |
2592 | ||
1e8bd3da RS |
2593 | /* Finally, we read from the main queue, |
2594 | and if that gives us something we can't use yet, we put it on the | |
2595 | appropriate side queue and try again. */ | |
410d4de9 | 2596 | |
1e8bd3da RS |
2597 | if (NILP (c)) |
2598 | { | |
2599 | KBOARD *kb; | |
2600 | ||
1e8bd3da | 2601 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2602 | save_getcjmp (save_jump); |
2603 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2604 | timer_start_idle (); |
83d68044 | 2605 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2606 | restore_getcjmp (save_jump); |
2607 | ||
c5fdd383 | 2608 | #ifdef MULTI_KBOARD |
410d4de9 | 2609 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2610 | { |
f3fbd155 KR |
2611 | Lisp_Object link = kb->kbd_queue; |
2612 | if (CONSP (link)) | |
2613 | { | |
2614 | while (CONSP (XCDR (link))) | |
2615 | link = XCDR (link); | |
2616 | if (!NILP (XCDR (link))) | |
2617 | abort (); | |
2618 | } | |
2619 | if (!CONSP (link)) | |
2620 | kb->kbd_queue = Fcons (c, Qnil); | |
2621 | else | |
2622 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2623 | kb->kbd_queue_has_data = 1; |
46b84797 | 2624 | c = Qnil; |
1e8bd3da RS |
2625 | if (single_kboard) |
2626 | goto wrong_kboard; | |
2627 | current_kboard = kb; | |
ef6661f7 RS |
2628 | /* This is going to exit from read_char |
2629 | so we had better get rid of this frame's stuff. */ | |
2630 | UNGCPRO; | |
1e8bd3da | 2631 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2632 | } |
1e8bd3da | 2633 | #endif |
beecf6a1 | 2634 | } |
1e8bd3da | 2635 | |
284f4730 | 2636 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2637 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2638 | Fkill_emacs (make_number (1)); |
2639 | ||
8c18cbfb | 2640 | if (INTEGERP (c)) |
80645119 JB |
2641 | { |
2642 | /* Add in any extra modifiers, where appropriate. */ | |
2643 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2644 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2645 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2646 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2647 | |
2648 | /* Transfer any other modifier bits directly from | |
2649 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2650 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2651 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2652 | } |
9fa4395d | 2653 | |
284f4730 JB |
2654 | non_reread: |
2655 | ||
fdbb67fe GM |
2656 | /* Record the last idle start time so that we can reset it |
2657 | should the next event read be a help-echo. */ | |
2658 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2659 | timer_stop_idle (); |
284f4730 JB |
2660 | start_polling (); |
2661 | ||
410d4de9 RS |
2662 | if (NILP (c)) |
2663 | { | |
2664 | if (commandflag >= 0 | |
4ec4ed6a | 2665 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2666 | redisplay (); |
2667 | ||
2668 | goto wrong_kboard; | |
2669 | } | |
2670 | ||
2671 | non_reread_1: | |
2672 | ||
dfd11da7 | 2673 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2674 | so don't show them to the user. |
2675 | Also, don't record a key if we already did. */ | |
2676 | if (BUFFERP (c) || key_already_recorded) | |
2677 | RETURN_UNGCPRO (c); | |
a1341f75 | 2678 | |
7f07d5ca RS |
2679 | /* Process special events within read_char |
2680 | and loop around to read another event. */ | |
017c7cb6 RS |
2681 | save = Vquit_flag; |
2682 | Vquit_flag = Qnil; | |
02067692 | 2683 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2684 | Vquit_flag = save; |
7f07d5ca RS |
2685 | |
2686 | if (!NILP (tem)) | |
2687 | { | |
ba8dfba8 RS |
2688 | int was_locked = single_kboard; |
2689 | ||
7f07d5ca | 2690 | last_input_char = c; |
158f7532 | 2691 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2692 | |
5d12f14d EZ |
2693 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2694 | /* We stopped being idle for this event; undo that. This | |
2695 | prevents automatic window selection (under | |
2696 | autoselect_window_p from acting as a real input event, for | |
2697 | example banishing the mouse under mouse-avoidance-mode. */ | |
2698 | timer_idleness_start_time = last_idle_start; | |
2699 | ||
ba8dfba8 RS |
2700 | /* Resume allowing input from any kboard, if that was true before. */ |
2701 | if (!was_locked) | |
2702 | any_kboard_state (); | |
2703 | ||
7f07d5ca RS |
2704 | goto retry; |
2705 | } | |
2706 | ||
284f4730 | 2707 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2708 | if (INTEGERP (c)) |
284f4730 JB |
2709 | { |
2710 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2711 | if (XINT (c) == -1) |
7c3bc944 | 2712 | RETURN_UNGCPRO (c); |
284f4730 | 2713 | |
301738ed RS |
2714 | if ((STRINGP (Vkeyboard_translate_table) |
2715 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2716 | || (VECTORP (Vkeyboard_translate_table) | |
2717 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2718 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2719 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2720 | { |
2721 | Lisp_Object d; | |
2722 | d = Faref (Vkeyboard_translate_table, c); | |
2723 | /* nil in keyboard-translate-table means no translation. */ | |
2724 | if (!NILP (d)) | |
2725 | c = d; | |
2726 | } | |
284f4730 JB |
2727 | } |
2728 | ||
e4fe371d RS |
2729 | /* If this event is a mouse click in the menu bar, |
2730 | return just menu-bar for now. Modify the mouse click event | |
2731 | so we won't do this twice, then queue it up. */ | |
2732 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2733 | && CONSP (XCDR (c)) |
e4fe371d | 2734 | && CONSP (EVENT_START (c)) |
7539e11f | 2735 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2736 | { |
e4fe371d | 2737 | Lisp_Object posn; |
284f4730 | 2738 | |
e4fe371d RS |
2739 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2740 | /* Handle menu-bar events: | |
2741 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2742 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2743 | { |
2744 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
f3fbd155 | 2745 | POSN_BUFFER_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2746 | |
e4fe371d RS |
2747 | also_record = c; |
2748 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2749 | c = posn; | |
284f4730 | 2750 | } |
284f4730 JB |
2751 | } |
2752 | ||
7d18f9ae RS |
2753 | /* Store these characters into recent_keys, the dribble file if any, |
2754 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2755 | record_char (c); |
2756 | if (! NILP (also_record)) | |
2757 | record_char (also_record); | |
51172b6d | 2758 | |
d5eecefb RS |
2759 | /* Wipe the echo area. |
2760 | But first, if we are about to use an input method, | |
2761 | save the echo area contents for it to refer to. */ | |
2762 | if (INTEGERP (c) | |
2763 | && ! NILP (Vinput_method_function) | |
2764 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2765 | && (unsigned) XINT (c) != 127 |
2766 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2767 | { |
2768 | previous_echo_area_message = Fcurrent_message (); | |
2769 | Vinput_method_previous_message = previous_echo_area_message; | |
2770 | } | |
d5eecefb | 2771 | |
1172eb8d GM |
2772 | /* Now wipe the echo area, except for help events which do their |
2773 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2774 | if (!CONSP (c) |
2775 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2776 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2777 | { |
2778 | if (!NILP (echo_area_buffer[0])) | |
2779 | safe_run_hooks (Qecho_area_clear_hook); | |
2780 | clear_message (1, 0); | |
2781 | } | |
d5eecefb | 2782 | |
7d18f9ae | 2783 | reread_for_input_method: |
284f4730 | 2784 | from_macro: |
7d18f9ae | 2785 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2786 | if (INTEGERP (c) |
2787 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2788 | /* Don't run the input method within a key sequence, |
2789 | after the first event of the key sequence. */ | |
2790 | && NILP (prev_event) | |
d5eecefb | 2791 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2792 | && (unsigned) XINT (c) != 127 |
2793 | && (unsigned) XINT (c) < 256) | |
d5eecefb RS |
2794 | { |
2795 | Lisp_Object keys; | |
6e5742a0 | 2796 | int key_count; |
d5eecefb | 2797 | struct gcpro gcpro1; |
b638f328 | 2798 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2799 | |
6e5742a0 RS |
2800 | /* Save the echo status. */ |
2801 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2802 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2803 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2804 | ||
2805 | if (before_command_restore_flag) | |
2806 | { | |
2807 | this_command_key_count = before_command_key_count_1; | |
2808 | if (this_command_key_count < this_single_command_key_start) | |
2809 | this_single_command_key_start = this_command_key_count; | |
2810 | echo_truncate (before_command_echo_length_1); | |
2811 | before_command_restore_flag = 0; | |
2812 | } | |
2813 | ||
2814 | /* Save the this_command_keys status. */ | |
2815 | key_count = this_command_key_count; | |
2816 | ||
2817 | if (key_count > 0) | |
2818 | keys = Fcopy_sequence (this_command_keys); | |
2819 | else | |
2820 | keys = Qnil; | |
d5eecefb | 2821 | GCPRO1 (keys); |
6e5742a0 RS |
2822 | |
2823 | /* Clear out this_command_keys. */ | |
2824 | this_command_key_count = 0; | |
2825 | ||
2826 | /* Now wipe the echo area. */ | |
985f9f66 | 2827 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2828 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2829 | clear_message (1, 0); |
6e5742a0 RS |
2830 | echo_truncate (0); |
2831 | ||
b638f328 RS |
2832 | /* If we are not reading a key sequence, |
2833 | never use the echo area. */ | |
2834 | if (maps == 0) | |
2835 | { | |
b638f328 RS |
2836 | specbind (Qinput_method_use_echo_area, Qt); |
2837 | } | |
2838 | ||
6e5742a0 | 2839 | /* Call the input method. */ |
d5eecefb | 2840 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2841 | |
2842 | tem = unbind_to (count, tem); | |
2843 | ||
6e5742a0 RS |
2844 | /* Restore the saved echoing state |
2845 | and this_command_keys state. */ | |
2846 | this_command_key_count = key_count; | |
2847 | if (key_count > 0) | |
2848 | this_command_keys = keys; | |
2849 | ||
2850 | cancel_echoing (); | |
2851 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2852 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2853 | if (saved_immediate_echo) | |
2854 | echo_now (); | |
2855 | ||
d5eecefb | 2856 | UNGCPRO; |
6e5742a0 | 2857 | |
d5eecefb RS |
2858 | /* The input method can return no events. */ |
2859 | if (! CONSP (tem)) | |
7d18f9ae | 2860 | { |
d5eecefb | 2861 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2862 | if (! NILP (previous_echo_area_message)) |
2863 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2864 | goto retry; |
7d18f9ae | 2865 | } |
d5eecefb | 2866 | /* It returned one event or more. */ |
7539e11f | 2867 | c = XCAR (tem); |
d5eecefb | 2868 | Vunread_post_input_method_events |
7539e11f | 2869 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2870 | } |
7c3bc944 | 2871 | |
7d18f9ae | 2872 | reread_first: |
284f4730 | 2873 | |
7ee32cda | 2874 | /* Display help if not echoing. */ |
1172eb8d | 2875 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 2876 | { |
2190735a | 2877 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
2878 | Lisp_Object help, object, position, window, tem; |
2879 | ||
2880 | tem = Fcdr (XCDR (c)); | |
2881 | help = Fcar (tem); | |
2882 | tem = Fcdr (tem); | |
2883 | window = Fcar (tem); | |
2884 | tem = Fcdr (tem); | |
2885 | object = Fcar (tem); | |
2886 | tem = Fcdr (tem); | |
2887 | position = Fcar (tem); | |
2888 | ||
2190735a | 2889 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
2890 | |
2891 | /* We stopped being idle for this event; undo that. */ | |
2892 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
2893 | goto retry; |
2894 | } | |
2895 | ||
7d18f9ae | 2896 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2897 | { |
7d18f9ae RS |
2898 | before_command_key_count = this_command_key_count; |
2899 | before_command_echo_length = echo_length (); | |
2900 | ||
2901 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2902 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2903 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2904 | && ! (EVENT_HAS_PARAMETERS (c) |
2905 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2906 | { | |
2907 | echo_char (c); | |
2908 | if (! NILP (also_record)) | |
2909 | echo_char (also_record); | |
2910 | /* Once we reread a character, echoing can happen | |
2911 | the next time we pause to read a new one. */ | |
985f9f66 | 2912 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2913 | } |
2914 | ||
2915 | /* Record this character as part of the current key. */ | |
2916 | add_command_key (c); | |
e4fe371d | 2917 | if (! NILP (also_record)) |
7d18f9ae | 2918 | add_command_key (also_record); |
e4fe371d | 2919 | } |
b8556aee | 2920 | |
284f4730 | 2921 | last_input_char = c; |
c43b1734 | 2922 | num_input_events++; |
284f4730 JB |
2923 | |
2924 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2925 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2926 | { |
2927 | Lisp_Object tem0; | |
2928 | count = specpdl_ptr - specpdl; | |
2929 | ||
2930 | record_unwind_protect (Fset_window_configuration, | |
2931 | Fcurrent_window_configuration (Qnil)); | |
2932 | ||
2933 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2934 | if (STRINGP (tem0)) |
284f4730 JB |
2935 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2936 | ||
2937 | cancel_echoing (); | |
3cb81011 KH |
2938 | do |
2939 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2940 | while (BUFFERP (c)); |
ff11dfa1 | 2941 | /* Remove the help from the frame */ |
284f4730 | 2942 | unbind_to (count, Qnil); |
410d4de9 | 2943 | |
284f4730 JB |
2944 | redisplay (); |
2945 | if (EQ (c, make_number (040))) | |
2946 | { | |
2947 | cancel_echoing (); | |
3cb81011 KH |
2948 | do |
2949 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2950 | while (BUFFERP (c)); |
284f4730 JB |
2951 | } |
2952 | } | |
2953 | ||
7c3bc944 | 2954 | RETURN_UNGCPRO (c); |
284f4730 JB |
2955 | } |
2956 | ||
8eb4d8ef RS |
2957 | /* Record a key that came from a mouse menu. |
2958 | Record it for echoing, for this-command-keys, and so on. */ | |
2959 | ||
2960 | static void | |
2961 | record_menu_key (c) | |
2962 | Lisp_Object c; | |
2963 | { | |
2964 | /* Wipe the echo area. */ | |
985f9f66 | 2965 | clear_message (1, 0); |
8eb4d8ef RS |
2966 | |
2967 | record_char (c); | |
2968 | ||
2969 | before_command_key_count = this_command_key_count; | |
2970 | before_command_echo_length = echo_length (); | |
2971 | ||
2972 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2973 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2974 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
2975 | { |
2976 | echo_char (c); | |
2977 | ||
2978 | /* Once we reread a character, echoing can happen | |
2979 | the next time we pause to read a new one. */ | |
2980 | ok_to_echo_at_next_pause = 0; | |
2981 | } | |
2982 | ||
2983 | /* Record this character as part of the current key. */ | |
2984 | add_command_key (c); | |
2985 | ||
2986 | /* Re-reading in the middle of a command */ | |
2987 | last_input_char = c; | |
c43b1734 | 2988 | num_input_events++; |
8eb4d8ef RS |
2989 | } |
2990 | ||
ecb7cb34 KH |
2991 | /* Return 1 if should recognize C as "the help character". */ |
2992 | ||
2993 | int | |
2994 | help_char_p (c) | |
2995 | Lisp_Object c; | |
2996 | { | |
2997 | Lisp_Object tail; | |
2998 | ||
2999 | if (EQ (c, Vhelp_char)) | |
3000 | return 1; | |
7539e11f KR |
3001 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3002 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3003 | return 1; |
3004 | return 0; | |
3005 | } | |
3006 | ||
e4fe371d RS |
3007 | /* Record the input event C in various ways. */ |
3008 | ||
3009 | static void | |
3010 | record_char (c) | |
3011 | Lisp_Object c; | |
3012 | { | |
090c68b9 | 3013 | int recorded = 0; |
52be17cc | 3014 | |
090c68b9 KS |
3015 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3016 | { | |
3017 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3018 | events, we filter out repeated help-echo events, only store the | |
3019 | first and last in a series of mouse-movement events, and don't | |
3020 | store repeated help-echo events which are only separated by | |
3021 | mouse-movement events. */ | |
3022 | ||
3023 | Lisp_Object ev1, ev2, ev3; | |
3024 | int ix1, ix2, ix3; | |
3025 | ||
3026 | if ((ix1 = recent_keys_index - 1) < 0) | |
3027 | ix1 = NUM_RECENT_KEYS - 1; | |
3028 | ev1 = AREF (recent_keys, ix1); | |
3029 | ||
3030 | if ((ix2 = ix1 - 1) < 0) | |
3031 | ix2 = NUM_RECENT_KEYS - 1; | |
3032 | ev2 = AREF (recent_keys, ix2); | |
3033 | ||
3034 | if ((ix3 = ix2 - 1) < 0) | |
3035 | ix3 = NUM_RECENT_KEYS - 1; | |
3036 | ev3 = AREF (recent_keys, ix3); | |
3037 | ||
3038 | if (EQ (XCAR (c), Qhelp_echo)) | |
3039 | { | |
3040 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3041 | message, and a different help than the previously recorded |
090c68b9 KS |
3042 | event. */ |
3043 | Lisp_Object help, last_help; | |
3044 | ||
3045 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3046 | if (!STRINGP (help)) | |
3047 | recorded = 1; | |
3048 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3049 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3050 | recorded = 1; | |
3051 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3052 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3053 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3054 | recorded = -1; | |
3055 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3056 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3057 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3058 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3059 | recorded = -2; | |
3060 | } | |
3061 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3062 | { |
090c68b9 KS |
3063 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3064 | So additional mouse movement events replace the last element. */ | |
3065 | Lisp_Object last_window, window; | |
3066 | ||
3067 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3068 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3069 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3070 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3071 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3072 | { |
090c68b9 KS |
3073 | ASET (recent_keys, ix1, c); |
3074 | recorded = 1; | |
52be17cc GM |
3075 | } |
3076 | } | |
3077 | } | |
3078 | else | |
090c68b9 KS |
3079 | store_kbd_macro_char (c); |
3080 | ||
3081 | if (!recorded) | |
e8a50785 GM |
3082 | { |
3083 | total_keys++; | |
3084 | ASET (recent_keys, recent_keys_index, c); | |
3085 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3086 | recent_keys_index = 0; | |
3087 | } | |
090c68b9 KS |
3088 | else if (recorded < 0) |
3089 | { | |
3090 | /* We need to remove one or two events from recent_keys. | |
3091 | To do this, we simply put nil at those events and move the | |
3092 | recent_keys_index backwards over those events. Usually, | |
3093 | users will never see those nil events, as they will be | |
3094 | overwritten by the command keys entered to see recent_keys | |
3095 | (e.g. C-h l). */ | |
3096 | ||
3097 | while (recorded++ < 0 && total_keys > 0) | |
3098 | { | |
3099 | if (total_keys < NUM_RECENT_KEYS) | |
3100 | total_keys--; | |
3101 | if (--recent_keys_index < 0) | |
3102 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3103 | ASET (recent_keys, recent_keys_index, Qnil); | |
3104 | } | |
3105 | } | |
3106 | ||
3107 | num_nonmacro_input_events++; | |
52be17cc | 3108 | |
e4fe371d RS |
3109 | /* Write c to the dribble file. If c is a lispy event, write |
3110 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3111 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3112 | if (dribble) | |
3113 | { | |
3114 | if (INTEGERP (c)) | |
3115 | { | |
3116 | if (XUINT (c) < 0x100) | |
3117 | putc (XINT (c), dribble); | |
3118 | else | |
6de34814 | 3119 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3120 | } |
3121 | else | |
3122 | { | |
3123 | Lisp_Object dribblee; | |
3124 | ||
3125 | /* If it's a structured event, take the event header. */ | |
3126 | dribblee = EVENT_HEAD (c); | |
3127 | ||
3128 | if (SYMBOLP (dribblee)) | |
3129 | { | |
3130 | putc ('<', dribble); | |
3131 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 3132 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
3133 | dribble); |
3134 | putc ('>', dribble); | |
3135 | } | |
3136 | } | |
3137 | ||
3138 | fflush (dribble); | |
3139 | } | |
e4fe371d RS |
3140 | } |
3141 | ||
284f4730 JB |
3142 | Lisp_Object |
3143 | print_help (object) | |
3144 | Lisp_Object object; | |
3145 | { | |
622de3e9 | 3146 | struct buffer *old = current_buffer; |
284f4730 | 3147 | Fprinc (object, Qnil); |
622de3e9 KH |
3148 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3149 | call0 (intern ("help-mode")); | |
3150 | set_buffer_internal (old); | |
284f4730 JB |
3151 | return Qnil; |
3152 | } | |
3153 | ||
3154 | /* Copy out or in the info on where C-g should throw to. | |
3155 | This is used when running Lisp code from within get_char, | |
3156 | in case get_char is called recursively. | |
3157 | See read_process_output. */ | |
3158 | ||
dfcf069d | 3159 | static void |
284f4730 JB |
3160 | save_getcjmp (temp) |
3161 | jmp_buf temp; | |
3162 | { | |
3163 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3164 | } | |
3165 | ||
dfcf069d | 3166 | static void |
284f4730 JB |
3167 | restore_getcjmp (temp) |
3168 | jmp_buf temp; | |
3169 | { | |
3170 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3171 | } | |
284f4730 | 3172 | \f |
2eb6bfbe RM |
3173 | #ifdef HAVE_MOUSE |
3174 | ||
284f4730 JB |
3175 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3176 | of this function. */ | |
a9d77f1f | 3177 | |
284f4730 JB |
3178 | static Lisp_Object |
3179 | tracking_off (old_value) | |
3180 | Lisp_Object old_value; | |
3181 | { | |
71edead1 RS |
3182 | do_mouse_tracking = old_value; |
3183 | if (NILP (old_value)) | |
284f4730 | 3184 | { |
284f4730 JB |
3185 | /* Redisplay may have been preempted because there was input |
3186 | available, and it assumes it will be called again after the | |
3187 | input has been processed. If the only input available was | |
3188 | the sort that we have just disabled, then we need to call | |
3189 | redisplay. */ | |
d9d4c147 | 3190 | if (!readable_events (1)) |
284f4730 | 3191 | { |
3007ebfb | 3192 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3193 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3194 | } |
3195 | } | |
30690496 | 3196 | return Qnil; |
284f4730 JB |
3197 | } |
3198 | ||
3199 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3200 | doc: /* Evaluate BODY with mouse movement events enabled. |
3201 | Within a `track-mouse' form, mouse motion generates input events that | |
3202 | you can read with `read-event'. | |
3203 | Normally, mouse motion is ignored. | |
3204 | usage: (track-mouse BODY ...) */) | |
3205 | (args) | |
284f4730 JB |
3206 | Lisp_Object args; |
3207 | { | |
3208 | int count = specpdl_ptr - specpdl; | |
3209 | Lisp_Object val; | |
3210 | ||
a9d77f1f | 3211 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3212 | |
f3253854 | 3213 | do_mouse_tracking = Qt; |
df0f2ba1 | 3214 | |
284f4730 JB |
3215 | val = Fprogn (args); |
3216 | return unbind_to (count, val); | |
3217 | } | |
2eb6bfbe | 3218 | |
f3253854 KH |
3219 | /* If mouse has moved on some frame, return one of those frames. |
3220 | Return 0 otherwise. */ | |
3221 | ||
3222 | static FRAME_PTR | |
3223 | some_mouse_moved () | |
3224 | { | |
3225 | Lisp_Object tail, frame; | |
3226 | ||
3227 | FOR_EACH_FRAME (tail, frame) | |
3228 | { | |
3229 | if (XFRAME (frame)->mouse_moved) | |
3230 | return XFRAME (frame); | |
3231 | } | |
3232 | ||
3233 | return 0; | |
3234 | } | |
3235 | ||
2eb6bfbe | 3236 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3237 | \f |
3238 | /* Low level keyboard/mouse input. | |
3239 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3240 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3241 | |
3242 | /* Return true iff there are any events in the queue that read-char | |
3243 | would return. If this returns false, a read-char would block. */ | |
3244 | static int | |
d9d4c147 KH |
3245 | readable_events (do_timers_now) |
3246 | int do_timers_now; | |
a612e298 | 3247 | { |
4ec4ed6a RS |
3248 | if (do_timers_now) |
3249 | timer_check (do_timers_now); | |
3250 | ||
beecf6a1 KH |
3251 | if (kbd_fetch_ptr != kbd_store_ptr) |
3252 | return 1; | |
3253 | #ifdef HAVE_MOUSE | |
f3253854 | 3254 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3255 | return 1; |
3256 | #endif | |
1e8bd3da | 3257 | if (single_kboard) |
4c52b668 | 3258 | { |
c5fdd383 | 3259 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3260 | return 1; |
3261 | } | |
3262 | else | |
3263 | { | |
c5fdd383 KH |
3264 | KBOARD *kb; |
3265 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3266 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3267 | return 1; |
3268 | } | |
beecf6a1 | 3269 | return 0; |
a612e298 RS |
3270 | } |
3271 | ||
3272 | /* Set this for debugging, to have a way to get out */ | |
3273 | int stop_character; | |
284f4730 | 3274 | |
c5fdd383 KH |
3275 | #ifdef MULTI_KBOARD |
3276 | static KBOARD * | |
3277 | event_to_kboard (event) | |
5798cf15 KH |
3278 | struct input_event *event; |
3279 | { | |
3280 | Lisp_Object frame; | |
3281 | frame = event->frame_or_window; | |
3282 | if (CONSP (frame)) | |
7539e11f | 3283 | frame = XCAR (frame); |
5798cf15 KH |
3284 | else if (WINDOWP (frame)) |
3285 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3286 | ||
3287 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3288 | For now, just ignore the problem. |
3289 | Also ignore dead frames here. */ | |
3290 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3291 | return 0; |
3292 | else | |
c5fdd383 | 3293 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3294 | } |
3295 | #endif | |
3296 | ||
284f4730 JB |
3297 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3298 | ||
3299 | void | |
3300 | kbd_buffer_store_event (event) | |
3301 | register struct input_event *event; | |
3302 | { | |
3303 | if (event->kind == no_event) | |
3304 | abort (); | |
3305 | ||
3306 | if (event->kind == ascii_keystroke) | |
3307 | { | |
e9bf89a0 | 3308 | register int c = event->code & 0377; |
284f4730 | 3309 | |
faf5e407 JB |
3310 | if (event->modifiers & ctrl_modifier) |
3311 | c = make_ctrl_char (c); | |
3312 | ||
9fd7d808 RS |
3313 | c |= (event->modifiers |
3314 | & (meta_modifier | alt_modifier | |
3315 | | hyper_modifier | super_modifier)); | |
3316 | ||
86e5706b | 3317 | if (c == quit_char) |
284f4730 | 3318 | { |
7189cad8 | 3319 | static SIGTYPE interrupt_signal (int); |
c5fdd383 KH |
3320 | #ifdef MULTI_KBOARD |
3321 | KBOARD *kb; | |
5798cf15 KH |
3322 | struct input_event *sp; |
3323 | ||
1e8bd3da | 3324 | if (single_kboard |
c5fdd383 KH |
3325 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3326 | kb != current_kboard)) | |
5798cf15 | 3327 | { |
c5fdd383 | 3328 | kb->kbd_queue |
5798cf15 KH |
3329 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3330 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3331 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3332 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3333 | { | |
3334 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3335 | sp = kbd_buffer; | |
3336 | ||
c5fdd383 | 3337 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
3338 | { |
3339 | sp->kind = no_event; | |
3340 | sp->frame_or_window = Qnil; | |
da8f7368 | 3341 | sp->arg = Qnil; |
5798cf15 KH |
3342 | } |
3343 | } | |
3344 | return; | |
3345 | } | |
3346 | #endif | |
3e51c7b7 | 3347 | |
284f4730 | 3348 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3349 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3350 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3351 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3352 | { |
9b8eb840 | 3353 | Lisp_Object focus; |
4bb994d1 | 3354 | |
9b8eb840 | 3355 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3356 | if (NILP (focus)) |
beecf6a1 | 3357 | focus = event->frame_or_window; |
4c52b668 KH |
3358 | internal_last_event_frame = focus; |
3359 | Vlast_event_frame = focus; | |
4bb994d1 | 3360 | } |
3e51c7b7 | 3361 | |
ffd56f97 | 3362 | last_event_timestamp = event->timestamp; |
7189cad8 | 3363 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3364 | return; |
3365 | } | |
3366 | ||
3367 | if (c && c == stop_character) | |
3368 | { | |
3369 | sys_suspend (); | |
3370 | return; | |
3371 | } | |
284f4730 | 3372 | } |
3fe8e9a2 RS |
3373 | /* Don't insert two buffer_switch_event's in a row. |
3374 | Just ignore the second one. */ | |
3375 | else if (event->kind == buffer_switch_event | |
3376 | && kbd_fetch_ptr != kbd_store_ptr | |
3377 | && kbd_store_ptr->kind == buffer_switch_event) | |
3378 | return; | |
284f4730 | 3379 | |
beecf6a1 KH |
3380 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3381 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3382 | |
3383 | /* Don't let the very last slot in the buffer become full, | |
3384 | since that would make the two pointers equal, | |
3385 | and that is indistinguishable from an empty buffer. | |
3386 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3387 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3388 | { |
da8f7368 GM |
3389 | int idx; |
3390 | ||
3391 | #if 0 /* The selection_request_event case looks bogus, and it's error | |
3392 | prone to assign individual members for other events, in case | |
3393 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3394 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3395 | sp->kind = event->kind; |
27203ead RS |
3396 | if (event->kind == selection_request_event) |
3397 | { | |
3398 | /* We must not use the ordinary copying code for this case, | |
3399 | since `part' is an enum and copying it might not copy enough | |
3400 | in this case. */ | |
612b78ef | 3401 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3402 | } |
3403 | else | |
da8f7368 | 3404 | |
27203ead | 3405 | { |
612b78ef KH |
3406 | sp->code = event->code; |
3407 | sp->part = event->part; | |
3408 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3409 | sp->arg = event->arg; |
612b78ef KH |
3410 | sp->modifiers = event->modifiers; |
3411 | sp->x = event->x; | |
3412 | sp->y = event->y; | |
3413 | sp->timestamp = event->timestamp; | |
27203ead | 3414 | } |
da8f7368 GM |
3415 | #else |
3416 | *kbd_store_ptr = *event; | |
3417 | #endif | |
284f4730 | 3418 | |
da8f7368 GM |
3419 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3420 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3421 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3422 | ++kbd_store_ptr; | |
284f4730 JB |
3423 | } |
3424 | } | |
8dfd92c9 GM |
3425 | |
3426 | ||
f139e559 | 3427 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3428 | SIZE events. If there's not enough room in BUFP, ignore this |
3429 | event. | |
8dfd92c9 GM |
3430 | |
3431 | HELP is the help form. | |
3432 | ||
3433 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3434 | Lisp object where the help was found (a buffer, a string, an |
3435 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3436 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3437 | |
3438 | Value is the number of input_events generated. */ | |
3439 | ||
3440 | int | |
0bbfdc25 | 3441 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3442 | struct input_event *bufp; |
0bbfdc25 | 3443 | int size; |
2190735a | 3444 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3445 | int pos; |
3446 | { | |
0bbfdc25 GM |
3447 | int nevents_stored = 0; |
3448 | ||
3449 | if (size >= 2) | |
3450 | { | |
3451 | bufp->kind = HELP_EVENT; | |
3452 | bufp->frame_or_window = frame; | |
3453 | bufp->arg = object; | |
3454 | bufp->x = make_number (pos); | |
3455 | bufp->code = 0; | |
8dfd92c9 | 3456 | |
0bbfdc25 GM |
3457 | ++bufp; |
3458 | bufp->kind = HELP_EVENT; | |
3459 | bufp->frame_or_window = WINDOWP (window) ? window : frame; | |
3460 | bufp->arg = help; | |
3461 | bufp->code = 1; | |
3462 | nevents_stored = 2; | |
3463 | } | |
2190735a | 3464 | |
0bbfdc25 | 3465 | return nevents_stored; |
8dfd92c9 GM |
3466 | } |
3467 | ||
3468 | ||
3469 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3470 | ||
3471 | void | |
3472 | kbd_buffer_store_help_event (frame, help) | |
3473 | Lisp_Object frame, help; | |
3474 | { | |
3475 | struct input_event event; | |
3476 | ||
3477 | event.kind = HELP_EVENT; | |
3478 | event.frame_or_window = frame; | |
3479 | event.arg = Qnil; | |
3480 | event.x = make_number (0); | |
3481 | event.code = 0; | |
3482 | kbd_buffer_store_event (&event); | |
3483 | ||
3484 | event.kind = HELP_EVENT; | |
3485 | event.frame_or_window = frame; | |
3486 | event.arg = help; | |
3487 | event.x = make_number (0); | |
3488 | event.code = 1; | |
3489 | kbd_buffer_store_event (&event); | |
3490 | } | |
3491 | ||
a612e298 | 3492 | \f |
07de30b9 GV |
3493 | /* Discard any mouse events in the event buffer by setting them to |
3494 | no_event. */ | |
3495 | void | |
3496 | discard_mouse_events () | |
3497 | { | |
3498 | struct input_event *sp; | |
3499 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3500 | { | |
3501 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3502 | sp = kbd_buffer; | |
3503 | ||
3504 | if (sp->kind == mouse_click | |
3505 | #ifdef WINDOWSNT | |
3506 | || sp->kind == w32_scroll_bar_click | |
3507 | #endif | |
3508 | || sp->kind == scroll_bar_click) | |
3509 | { | |
3510 | sp->kind = no_event; | |
3511 | } | |
3512 | } | |
3513 | } | |
eeabfe76 | 3514 | |
0bbfdc25 GM |
3515 | |
3516 | /* Return non-zero if there are any real events waiting in the event | |
3517 | buffer, not counting `no_event's. | |
3518 | ||
3519 | If DISCARD is non-zero, discard no_event events at the front of | |
3520 | the input queue, possibly leaving the input queue empty if there | |
3521 | are no real input events. */ | |
3522 | ||
eeabfe76 EZ |
3523 | int |
3524 | kbd_buffer_events_waiting (discard) | |
3525 | int discard; | |
3526 | { | |
3527 | struct input_event *sp; | |
0bbfdc25 GM |
3528 | |
3529 | for (sp = kbd_fetch_ptr; | |
3530 | sp != kbd_store_ptr && sp->kind == no_event; | |
3531 | ++sp) | |
eeabfe76 EZ |
3532 | { |
3533 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3534 | sp = kbd_buffer; | |
eeabfe76 | 3535 | } |
0bbfdc25 | 3536 | |
eeabfe76 EZ |
3537 | if (discard) |
3538 | kbd_fetch_ptr = sp; | |
0bbfdc25 GM |
3539 | |
3540 | return sp != kbd_store_ptr && sp->kind != no_event; | |
eeabfe76 | 3541 | } |
0bbfdc25 | 3542 | |
07de30b9 | 3543 | \f |
0bbfdc25 GM |
3544 | /* Clear input event EVENT. */ |
3545 | ||
3546 | static INLINE void | |
3547 | clear_event (event) | |
3548 | struct input_event *event; | |
3549 | { | |
3550 | int idx = 2 * (event - kbd_buffer); | |
3551 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3552 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3553 | event->kind = no_event; | |
3554 | } | |
3555 | ||
3556 | ||
a612e298 RS |
3557 | /* Read one event from the event buffer, waiting if necessary. |
3558 | The value is a Lisp object representing the event. | |
3559 | The value is nil for an event that should be ignored, | |
3560 | or that was handled here. | |
3561 | We always read and discard one event. */ | |
284f4730 JB |
3562 | |
3563 | static Lisp_Object | |
83d68044 | 3564 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3565 | KBOARD **kbp; |
83d68044 | 3566 | int *used_mouse_menu; |
284f4730 JB |
3567 | { |
3568 | register int c; | |
3569 | Lisp_Object obj; | |
3570 | ||
3571 | if (noninteractive) | |
3572 | { | |
3573 | c = getchar (); | |
18cd2eeb | 3574 | XSETINT (obj, c); |
f5b56972 | 3575 | *kbp = current_kboard; |
284f4730 JB |
3576 | return obj; |
3577 | } | |
3578 | ||
3579 | /* Wait until there is input available. */ | |
3580 | for (;;) | |
3581 | { | |
beecf6a1 KH |
3582 | if (kbd_fetch_ptr != kbd_store_ptr) |
3583 | break; | |
3584 | #ifdef HAVE_MOUSE | |
f3253854 | 3585 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3586 | break; |
beecf6a1 | 3587 | #endif |
284f4730 JB |
3588 | |
3589 | /* If the quit flag is set, then read_char will return | |
3590 | quit_char, so that counts as "available input." */ | |
3591 | if (!NILP (Vquit_flag)) | |
3592 | quit_throw_to_read_char (); | |
3593 | ||
3594 | /* One way or another, wait until input is available; then, if | |
3595 | interrupt handlers have not read it, read it now. */ | |
3596 | ||
3597 | #ifdef OLDVMS | |
3598 | wait_for_kbd_input (); | |
3599 | #else | |
3600 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3601 | #ifdef SIGIO | |
3602 | gobble_input (0); | |
3603 | #endif /* SIGIO */ | |
beecf6a1 KH |
3604 | if (kbd_fetch_ptr != kbd_store_ptr) |
3605 | break; | |
3606 | #ifdef HAVE_MOUSE | |
f3253854 | 3607 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3608 | break; |
3609 | #endif | |
3610 | { | |
3611 | Lisp_Object minus_one; | |
f76475ad | 3612 | |
beecf6a1 | 3613 | XSETINT (minus_one, -1); |
d9d4c147 | 3614 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3615 | |
beecf6a1 KH |
3616 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3617 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3618 | read_avail_input (1); | |
3619 | } | |
284f4730 JB |
3620 | #endif /* not VMS */ |
3621 | } | |
3622 | ||
303b5b3f RS |
3623 | if (CONSP (Vunread_command_events)) |
3624 | { | |
3625 | Lisp_Object first; | |
7539e11f KR |
3626 | first = XCAR (Vunread_command_events); |
3627 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3628 | *kbp = current_kboard; |
3629 | return first; | |
3630 | } | |
3631 | ||
284f4730 JB |
3632 | /* At this point, we know that there is a readable event available |
3633 | somewhere. If the event queue is empty, then there must be a | |
3634 | mouse movement enabled and available. */ | |
beecf6a1 | 3635 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3636 | { |
cd21b839 | 3637 | struct input_event *event; |
3e51c7b7 | 3638 | |
beecf6a1 KH |
3639 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3640 | ? kbd_fetch_ptr | |
3641 | : kbd_buffer); | |
3e51c7b7 | 3642 | |
cd21b839 | 3643 | last_event_timestamp = event->timestamp; |
cd21b839 | 3644 | |
c5fdd383 KH |
3645 | #ifdef MULTI_KBOARD |
3646 | *kbp = event_to_kboard (event); | |
3647 | if (*kbp == 0) | |
3648 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3649 | #else |
c5fdd383 | 3650 | *kbp = &the_only_kboard; |
5798cf15 | 3651 | #endif |
beecf6a1 | 3652 | |
4bb994d1 JB |
3653 | obj = Qnil; |
3654 | ||
48e416d4 | 3655 | /* These two kinds of events get special handling |
a612e298 RS |
3656 | and don't actually appear to the command loop. |
3657 | We return nil for them. */ | |
48e416d4 RS |
3658 | if (event->kind == selection_request_event) |
3659 | { | |
598a9fa7 | 3660 | #ifdef HAVE_X11 |
1e8bd3da RS |
3661 | struct input_event copy; |
3662 | ||
4581e928 RS |
3663 | /* Remove it from the buffer before processing it, |
3664 | since otherwise swallow_events will see it | |
3665 | and process it again. */ | |
1e8bd3da | 3666 | copy = *event; |
beecf6a1 | 3667 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3668 | input_pending = readable_events (0); |
4581e928 | 3669 | x_handle_selection_request (©); |
598a9fa7 JB |
3670 | #else |
3671 | /* We're getting selection request events, but we don't have | |
3672 | a window system. */ | |
3673 | abort (); | |
3674 | #endif | |
48e416d4 RS |
3675 | } |
3676 | ||
1e12dd87 | 3677 | else if (event->kind == selection_clear_event) |
48e416d4 | 3678 | { |
598a9fa7 | 3679 | #ifdef HAVE_X11 |
e0301c07 RS |
3680 | struct input_event copy; |
3681 | ||
3682 | /* Remove it from the buffer before processing it. */ | |
3683 | copy = *event; | |
beecf6a1 | 3684 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3685 | input_pending = readable_events (0); |
90c2bb0c | 3686 | x_handle_selection_clear (©); |
598a9fa7 JB |
3687 | #else |
3688 | /* We're getting selection request events, but we don't have | |
3689 | a window system. */ | |
3690 | abort (); | |
3691 | #endif | |
48e416d4 | 3692 | } |
1a578e9b | 3693 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (macintosh) |
990acea3 RS |
3694 | else if (event->kind == delete_window_event) |
3695 | { | |
bbdc2092 RS |
3696 | /* Make an event (delete-frame (FRAME)). */ |
3697 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3698 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3699 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3700 | } |
1a578e9b AC |
3701 | #endif |
3702 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
af17bd2b KH |
3703 | else if (event->kind == iconify_event) |
3704 | { | |
3705 | /* Make an event (iconify-frame (FRAME)). */ | |
3706 | obj = Fcons (event->frame_or_window, Qnil); | |
3707 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3708 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3709 | } |
3710 | else if (event->kind == deiconify_event) | |
3711 | { | |
3712 | /* Make an event (make-frame-visible (FRAME)). */ | |
3713 | obj = Fcons (event->frame_or_window, Qnil); | |
3714 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3715 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3716 | } |
3717 | #endif | |
a8015ab5 KH |
3718 | else if (event->kind == buffer_switch_event) |
3719 | { | |
3720 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3721 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3722 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3723 | } |
1a578e9b | 3724 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
099787c1 RS |
3725 | else if (event->kind == menu_bar_activate_event) |
3726 | { | |
3727 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3728 | input_pending = readable_events (0); |
e649d076 RS |
3729 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3730 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3731 | } |
1161d367 GV |
3732 | #endif |
3733 | #ifdef WINDOWSNT | |
3734 | else if (event->kind == language_change_event) | |
3735 | { | |
3736 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3737 | obj = Fcons (event->modifiers, Qnil); | |
15fdc2e3 | 3738 | obj = Fcons (event->code, obj); |
1161d367 GV |
3739 | obj = Fcons (event->frame_or_window, obj); |
3740 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3741 | kbd_fetch_ptr = event + 1; | |
3742 | } | |
099787c1 | 3743 | #endif |
4ebc27a5 JD |
3744 | else if (event->kind == save_session_event) |
3745 | { | |
3746 | obj = Fcons (Qsave_session, Qnil); | |
3747 | kbd_fetch_ptr = event + 1; | |
3748 | } | |
a612e298 | 3749 | /* Just discard these, by returning nil. |
c5fdd383 | 3750 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3751 | when we need to randomly delete events from the queue. |
3752 | (They shouldn't otherwise be found in the buffer, | |
3753 | but on some machines it appears they do show up | |
c5fdd383 | 3754 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3755 | /* On Windows NT/9X, no_event is used to delete extraneous |
3756 | mouse events during a popup-menu call. */ | |
a612e298 | 3757 | else if (event->kind == no_event) |
beecf6a1 | 3758 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3759 | else if (event->kind == HELP_EVENT) |
3760 | { | |
e4457b09 | 3761 | /* There are always two HELP_EVENTs in the input queue. */ |
2190735a | 3762 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3763 | |
8dfd92c9 GM |
3764 | xassert (event->code == 0); |
3765 | frame = event->frame_or_window; | |
3766 | object = event->arg; | |
3767 | position = event->x; | |
0bbfdc25 | 3768 | clear_event (event); |
e4457b09 GM |
3769 | |
3770 | kbd_fetch_ptr = event + 1; | |
3771 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3772 | ? kbd_fetch_ptr | |
3773 | : kbd_buffer); | |
3774 | xassert (event->code == 1); | |
3775 | help = event->arg; | |
3776 | window = event->frame_or_window; | |
2190735a GM |
3777 | if (!WINDOWP (window)) |
3778 | window = Qnil; | |
3779 | obj = Fcons (Qhelp_echo, | |
3780 | list5 (frame, help, window, object, position)); | |
0bbfdc25 | 3781 | clear_event (event); |
e4457b09 | 3782 | kbd_fetch_ptr = event + 1; |
7ee32cda | 3783 | } |
c51c7093 GM |
3784 | else if (event->kind == FOCUS_IN_EVENT) |
3785 | { | |
3786 | /* Notification of a FocusIn event. The frame receiving the | |
3787 | focus is in event->frame_or_window. Generate a | |
3788 | switch-frame event if necessary. */ | |
3789 | Lisp_Object frame, focus; | |
3790 | ||
3791 | frame = event->frame_or_window; | |
3792 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3793 | if (FRAMEP (focus)) | |
3794 | frame = focus; | |
3795 | ||
3796 | if (!EQ (frame, internal_last_event_frame) | |
3797 | && !EQ (frame, selected_frame)) | |
3798 | obj = make_lispy_switch_frame (frame); | |
3799 | internal_last_event_frame = frame; | |
a697f886 PJ |
3800 | kbd_fetch_ptr = event + 1; |
3801 | } | |
3802 | else if (event->kind == SELECT_WINDOW_EVENT) | |
3803 | { | |
3804 | /* Make an event (select-window (WINDOW)). */ | |
3805 | obj = Fcons (event->frame_or_window, Qnil); | |
3806 | obj = Fcons (Qselect_window, Fcons (obj, Qnil)); | |
3807 | ||
c51c7093 GM |
3808 | kbd_fetch_ptr = event + 1; |
3809 | } | |
1e12dd87 RS |
3810 | else |
3811 | { | |
c51c7093 GM |
3812 | /* If this event is on a different frame, return a switch-frame this |
3813 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3814 | Lisp_Object frame; |
1e12dd87 | 3815 | Lisp_Object focus; |
7b4aedb9 | 3816 | |
9b8eb840 | 3817 | frame = event->frame_or_window; |
2470a66f | 3818 | if (CONSP (frame)) |
7539e11f | 3819 | frame = XCAR (frame); |
2470a66f | 3820 | else if (WINDOWP (frame)) |
1e12dd87 | 3821 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3822 | |
1e12dd87 RS |
3823 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3824 | if (! NILP (focus)) | |
3825 | frame = focus; | |
07d2b8de | 3826 | |
4c52b668 | 3827 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3828 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3829 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3830 | internal_last_event_frame = frame; |
4bb994d1 | 3831 | |
1e12dd87 RS |
3832 | /* If we didn't decide to make a switch-frame event, go ahead |
3833 | and build a real event from the queue entry. */ | |
cd21b839 | 3834 | |
1e12dd87 RS |
3835 | if (NILP (obj)) |
3836 | { | |
3837 | obj = make_lispy_event (event); | |
da8f7368 | 3838 | |
e98a93eb | 3839 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3840 | /* If this was a menu selection, then set the flag to inhibit |
3841 | writing to last_nonmenu_event. Don't do this if the event | |
3842 | we're returning is (menu-bar), though; that indicates the | |
3843 | beginning of the menu sequence, and we might as well leave | |
3844 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
3845 | if (used_mouse_menu |
3846 | && !EQ (event->frame_or_window, event->arg) | |
3847 | && (event->kind == MENU_BAR_EVENT | |
3848 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
3849 | *used_mouse_menu = 1; |
3850 | #endif | |
1e12dd87 RS |
3851 | |
3852 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 3853 | clear_event (event); |
beecf6a1 | 3854 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3855 | } |
4bb994d1 | 3856 | } |
284f4730 | 3857 | } |
2eb6bfbe | 3858 | #ifdef HAVE_MOUSE |
a612e298 | 3859 | /* Try generating a mouse motion event. */ |
f3253854 | 3860 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3861 | { |
f3253854 | 3862 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3863 | Lisp_Object bar_window; |
3c370943 | 3864 | enum scroll_bar_part part; |
e5d77022 JB |
3865 | Lisp_Object x, y; |
3866 | unsigned long time; | |
284f4730 | 3867 | |
c5fdd383 | 3868 | *kbp = current_kboard; |
e177ac3a RS |
3869 | /* Note that this uses F to determine which display to look at. |
3870 | If there is no valid info, it does not store anything | |
3871 | so x remains nil. */ | |
3872 | x = Qnil; | |
dd26ab75 | 3873 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3874 | |
3875 | obj = Qnil; | |
284f4730 | 3876 | |
4bb994d1 JB |
3877 | /* Decide if we should generate a switch-frame event. Don't |
3878 | generate switch-frame events for motion outside of all Emacs | |
3879 | frames. */ | |
e177ac3a | 3880 | if (!NILP (x) && f) |
cd21b839 | 3881 | { |
9b8eb840 | 3882 | Lisp_Object frame; |
4bb994d1 | 3883 | |
9b8eb840 | 3884 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3885 | if (NILP (frame)) |
18cd2eeb | 3886 | XSETFRAME (frame, f); |
4bb994d1 | 3887 | |
4c52b668 | 3888 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3889 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3890 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3891 | internal_last_event_frame = frame; |
cd21b839 | 3892 | } |
4bb994d1 | 3893 | |
df0f2ba1 | 3894 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3895 | return a mouse-motion event. */ |
e177ac3a | 3896 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3897 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3898 | } |
2eb6bfbe | 3899 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3900 | else |
3901 | /* We were promised by the above while loop that there was | |
3902 | something for us to read! */ | |
3903 | abort (); | |
3904 | ||
d9d4c147 | 3905 | input_pending = readable_events (0); |
284f4730 | 3906 | |
4c52b668 | 3907 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3908 | |
284f4730 JB |
3909 | return (obj); |
3910 | } | |
a612e298 RS |
3911 | \f |
3912 | /* Process any events that are not user-visible, | |
3913 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3914 | |
3915 | void | |
d9d4c147 KH |
3916 | swallow_events (do_display) |
3917 | int do_display; | |
3a3b9632 | 3918 | { |
87dd9b9b RS |
3919 | int old_timers_run; |
3920 | ||
beecf6a1 | 3921 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3922 | { |
3923 | struct input_event *event; | |
3924 | ||
beecf6a1 KH |
3925 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3926 | ? kbd_fetch_ptr | |
3927 | : kbd_buffer); | |
3a3b9632 RS |
3928 | |
3929 | last_event_timestamp = event->timestamp; | |
3930 | ||
3931 | /* These two kinds of events get special handling | |
3932 | and don't actually appear to the command loop. */ | |
3933 | if (event->kind == selection_request_event) | |
3934 | { | |
3935 | #ifdef HAVE_X11 | |
4581e928 | 3936 | struct input_event copy; |
e0301c07 RS |
3937 | |
3938 | /* Remove it from the buffer before processing it, | |
3939 | since otherwise swallow_events called recursively could see it | |
3940 | and process it again. */ | |
4581e928 | 3941 | copy = *event; |
beecf6a1 | 3942 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3943 | input_pending = readable_events (0); |
4581e928 | 3944 | x_handle_selection_request (©); |
3a3b9632 RS |
3945 | #else |
3946 | /* We're getting selection request events, but we don't have | |
3947 | a window system. */ | |
3948 | abort (); | |
3949 | #endif | |
3950 | } | |
3951 | ||
3952 | else if (event->kind == selection_clear_event) | |
3953 | { | |
3954 | #ifdef HAVE_X11 | |
e0301c07 RS |
3955 | struct input_event copy; |
3956 | ||
3957 | /* Remove it from the buffer before processing it, */ | |
3958 | copy = *event; | |
3959 | ||
beecf6a1 | 3960 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3961 | input_pending = readable_events (0); |
90c2bb0c | 3962 | x_handle_selection_clear (©); |
3a3b9632 RS |
3963 | #else |
3964 | /* We're getting selection request events, but we don't have | |
3965 | a window system. */ | |
3966 | abort (); | |
3967 | #endif | |
3968 | } | |
3969 | else | |
3970 | break; | |
3971 | } | |
3972 | ||
87dd9b9b | 3973 | old_timers_run = timers_run; |
d9d4c147 | 3974 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3975 | |
3976 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 3977 | redisplay_preserve_echo_area (7); |
3a3b9632 | 3978 | } |
a612e298 | 3979 | \f |
d9d4c147 KH |
3980 | /* Record the start of when Emacs is idle, |
3981 | for the sake of running idle-time timers. */ | |
3982 | ||
07a59269 | 3983 | void |
d9d4c147 KH |
3984 | timer_start_idle () |
3985 | { | |
3986 | Lisp_Object timers; | |
3987 | ||
3988 | /* If we are already in the idle state, do nothing. */ | |
3989 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3990 | return; | |
3991 | ||
3992 | EMACS_GET_TIME (timer_idleness_start_time); | |
3993 | ||
3994 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3995 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3996 | { |
3997 | Lisp_Object timer; | |
3998 | ||
7539e11f | 3999 | timer = XCAR (timers); |
d9d4c147 KH |
4000 | |
4001 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4002 | continue; | |
4003 | XVECTOR (timer)->contents[0] = Qnil; | |
4004 | } | |
4005 | } | |
4006 | ||
4007 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4008 | ||
07a59269 | 4009 | void |
d9d4c147 KH |
4010 | timer_stop_idle () |
4011 | { | |
4012 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4013 | } | |
4014 | ||
e044e87c RS |
4015 | /* This is only for debugging. */ |
4016 | struct input_event last_timer_event; | |
4017 | ||
c04cbc3b RS |
4018 | /* Check whether a timer has fired. To prevent larger problems we simply |
4019 | disregard elements that are not proper timers. Do not make a circular | |
4020 | timer list for the time being. | |
4021 | ||
4022 | Returns the number of seconds to wait until the next timer fires. If a | |
4023 | timer is triggering now, return zero seconds. | |
4024 | If no timer is active, return -1 seconds. | |
4025 | ||
4ec4ed6a RS |
4026 | If a timer is ripe, we run it, with quitting turned off. |
4027 | ||
4028 | DO_IT_NOW is now ignored. It used to mean that we should | |
4029 | run the timer directly instead of queueing a timer-event. | |
4030 | Now we always run timers directly. */ | |
c04cbc3b RS |
4031 | |
4032 | EMACS_TIME | |
4033 | timer_check (do_it_now) | |
4034 | int do_it_now; | |
4035 | { | |
4036 | EMACS_TIME nexttime; | |
9291c072 RS |
4037 | EMACS_TIME now, idleness_now; |
4038 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4039 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4040 | |
c04cbc3b RS |
4041 | EMACS_SET_SECS (nexttime, -1); |
4042 | EMACS_SET_USECS (nexttime, -1); | |
4043 | ||
9291c072 | 4044 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4045 | timers = Vtimer_list; |
9291c072 RS |
4046 | /* Consider the idle timers only if Emacs is idle. */ |
4047 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4048 | idle_timers = Vtimer_idle_list; | |
4049 | else | |
4050 | idle_timers = Qnil; | |
4051 | chosen_timer = Qnil; | |
4052 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4053 | |
9291c072 | 4054 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4055 | { |
9291c072 RS |
4056 | EMACS_GET_TIME (now); |
4057 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4058 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4059 | } | |
c04cbc3b | 4060 | |
9291c072 RS |
4061 | while (CONSP (timers) || CONSP (idle_timers)) |
4062 | { | |
9291c072 | 4063 | Lisp_Object *vector; |
8c907a56 | 4064 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4065 | EMACS_TIME timer_time, idle_timer_time; |
4066 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4067 | ||
4068 | /* Skip past invalid timers and timers already handled. */ | |
4069 | if (!NILP (timers)) | |
c04cbc3b | 4070 | { |
7539e11f | 4071 | timer = XCAR (timers); |
9291c072 RS |
4072 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4073 | { | |
7539e11f | 4074 | timers = XCDR (timers); |
9291c072 RS |
4075 | continue; |
4076 | } | |
4077 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4078 | |
9291c072 RS |
4079 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4080 | || !INTEGERP (vector[3]) | |
4081 | || ! NILP (vector[0])) | |
4082 | { | |
7539e11f | 4083 | timers = XCDR (timers); |
9291c072 RS |
4084 | continue; |
4085 | } | |
4086 | } | |
4087 | if (!NILP (idle_timers)) | |
4088 | { | |
7539e11f | 4089 | timer = XCAR (idle_timers); |
d9d4c147 | 4090 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4091 | { |
7539e11f | 4092 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4093 | continue; |
4094 | } | |
d9d4c147 KH |
4095 | vector = XVECTOR (timer)->contents; |
4096 | ||
4097 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4098 | || !INTEGERP (vector[3]) |
4099 | || ! NILP (vector[0])) | |
4100 | { | |
7539e11f | 4101 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4102 | continue; |
4103 | } | |
4104 | } | |
d9d4c147 | 4105 | |
9291c072 RS |
4106 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4107 | based on the next ordinary timer. | |
4108 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4109 | this timer becomes ripe (negative if it's already ripe). */ | |
4110 | if (!NILP (timers)) | |
4111 | { | |
7539e11f | 4112 | timer = XCAR (timers); |
9291c072 | 4113 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4114 | EMACS_SET_SECS (timer_time, |
4115 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4116 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4117 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4118 | } | |
ba8dfba8 | 4119 | |
9291c072 RS |
4120 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4121 | based on the next idle timer. */ | |
4122 | if (!NILP (idle_timers)) | |
4123 | { | |
7539e11f | 4124 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4125 | vector = XVECTOR (idle_timer)->contents; |
4126 | EMACS_SET_SECS (idle_timer_time, | |
4127 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4128 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4129 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4130 | } | |
ba8dfba8 | 4131 | |
9291c072 RS |
4132 | /* Decide which timer is the next timer, |
4133 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4134 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4135 | |
9291c072 RS |
4136 | if (! NILP (timers) && ! NILP (idle_timers)) |
4137 | { | |
4138 | EMACS_TIME temp; | |
4139 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4140 | if (EMACS_TIME_NEG_P (temp)) | |
4141 | { | |
4142 | chosen_timer = timer; | |
7539e11f | 4143 | timers = XCDR (timers); |
9291c072 | 4144 | difference = timer_difference; |
c04cbc3b | 4145 | } |
d9d4c147 | 4146 | else |
d9d4c147 | 4147 | { |
9291c072 | 4148 | chosen_timer = idle_timer; |
7539e11f | 4149 | idle_timers = XCDR (idle_timers); |
9291c072 | 4150 | difference = idle_timer_difference; |
d9d4c147 | 4151 | } |
7ea13e12 | 4152 | } |
9291c072 RS |
4153 | else if (! NILP (timers)) |
4154 | { | |
4155 | chosen_timer = timer; | |
7539e11f | 4156 | timers = XCDR (timers); |
9291c072 RS |
4157 | difference = timer_difference; |
4158 | } | |
4159 | else | |
4160 | { | |
4161 | chosen_timer = idle_timer; | |
7539e11f | 4162 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4163 | difference = idle_timer_difference; |
4164 | } | |
4165 | vector = XVECTOR (chosen_timer)->contents; | |
4166 | ||
bd55b860 | 4167 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4168 | if (EMACS_TIME_NEG_P (difference) |
4169 | || (EMACS_SECS (difference) == 0 | |
4170 | && EMACS_USECS (difference) == 0)) | |
4171 | { | |
4172 | if (NILP (vector[0])) | |
4173 | { | |
d925fb39 | 4174 | int was_locked = single_kboard; |
d0bbfc99 GM |
4175 | int count = BINDING_STACK_SIZE (); |
4176 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; | |
d925fb39 | 4177 | |
9291c072 RS |
4178 | /* Mark the timer as triggered to prevent problems if the lisp |
4179 | code fails to reschedule it right. */ | |
4180 | vector[0] = Qt; | |
4181 | ||
d925fb39 | 4182 | specbind (Qinhibit_quit, Qt); |
d0bbfc99 | 4183 | |
d925fb39 | 4184 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4185 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4186 | timers_run++; |
d925fb39 | 4187 | unbind_to (count, Qnil); |
4ec4ed6a | 4188 | |
d925fb39 RS |
4189 | /* Resume allowing input from any kboard, if that was true before. */ |
4190 | if (!was_locked) | |
4191 | any_kboard_state (); | |
9291c072 | 4192 | |
d925fb39 RS |
4193 | /* Since we have handled the event, |
4194 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4195 | } |
4196 | } | |
4197 | else | |
4198 | /* When we encounter a timer that is still waiting, | |
4199 | return the amount of time to wait before it is ripe. */ | |
4200 | { | |
4201 | UNGCPRO; | |
9291c072 RS |
4202 | return difference; |
4203 | } | |
c04cbc3b | 4204 | } |
9291c072 | 4205 | |
7ea13e12 RS |
4206 | /* No timers are pending in the future. */ |
4207 | /* Return 0 if we generated an event, and -1 if not. */ | |
4208 | UNGCPRO; | |
c04cbc3b RS |
4209 | return nexttime; |
4210 | } | |
4211 | \f | |
284f4730 | 4212 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4213 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4214 | static Lisp_Object func_key_syms; |
4215 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
4216 | #ifdef WINDOWSNT |
4217 | static Lisp_Object mouse_wheel_syms; | |
4218 | #endif | |
a24dc617 | 4219 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4220 | |
e9bf89a0 RS |
4221 | /* This is a list of keysym codes for special "accent" characters. |
4222 | It parallels lispy_accent_keys. */ | |
4223 | ||
4224 | static int lispy_accent_codes[] = | |
4225 | { | |
79a7046c | 4226 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4227 | XK_dead_circumflex, |
79a7046c RS |
4228 | #else |
4229 | 0, | |
4230 | #endif | |
4231 | #ifdef XK_dead_grave | |
e9bf89a0 | 4232 | XK_dead_grave, |
79a7046c RS |
4233 | #else |
4234 | 0, | |
4235 | #endif | |
4236 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4237 | XK_dead_tilde, |
79a7046c RS |
4238 | #else |
4239 | 0, | |
4240 | #endif | |
4241 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4242 | XK_dead_diaeresis, |
79a7046c RS |
4243 | #else |
4244 | 0, | |
4245 | #endif | |
4246 | #ifdef XK_dead_macron | |
e9bf89a0 | 4247 | XK_dead_macron, |
79a7046c RS |
4248 | #else |
4249 | 0, | |
4250 | #endif | |
4251 | #ifdef XK_dead_degree | |
e9bf89a0 | 4252 | XK_dead_degree, |
79a7046c RS |
4253 | #else |
4254 | 0, | |
4255 | #endif | |
4256 | #ifdef XK_dead_acute | |
e9bf89a0 | 4257 | XK_dead_acute, |
79a7046c RS |
4258 | #else |
4259 | 0, | |
4260 | #endif | |
4261 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4262 | XK_dead_cedilla, |
79a7046c RS |
4263 | #else |
4264 | 0, | |
4265 | #endif | |
4266 | #ifdef XK_dead_breve | |
e9bf89a0 | 4267 | XK_dead_breve, |
79a7046c RS |
4268 | #else |
4269 | 0, | |
4270 | #endif | |
4271 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4272 | XK_dead_ogonek, |
79a7046c RS |
4273 | #else |
4274 | 0, | |
4275 | #endif | |
4276 | #ifdef XK_dead_caron | |
e9bf89a0 | 4277 | XK_dead_caron, |
79a7046c RS |
4278 | #else |
4279 | 0, | |
4280 | #endif | |
4281 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4282 | XK_dead_doubleacute, |
79a7046c RS |
4283 | #else |
4284 | 0, | |
4285 | #endif | |
4286 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4287 | XK_dead_abovedot, |
79a7046c RS |
4288 | #else |
4289 | 0, | |
4290 | #endif | |
e9bf89a0 RS |
4291 | }; |
4292 | ||
4293 | /* This is a list of Lisp names for special "accent" characters. | |
4294 | It parallels lispy_accent_codes. */ | |
4295 | ||
4296 | static char *lispy_accent_keys[] = | |
4297 | { | |
4298 | "dead-circumflex", | |
4299 | "dead-grave", | |
4300 | "dead-tilde", | |
4301 | "dead-diaeresis", | |
4302 | "dead-macron", | |
4303 | "dead-degree", | |
4304 | "dead-acute", | |
4305 | "dead-cedilla", | |
4306 | "dead-breve", | |
4307 | "dead-ogonek", | |
4308 | "dead-caron", | |
4309 | "dead-doubleacute", | |
4310 | "dead-abovedot", | |
4311 | }; | |
4312 | ||
e98a93eb GV |
4313 | #ifdef HAVE_NTGUI |
4314 | #define FUNCTION_KEY_OFFSET 0x0 | |
4315 | ||
4316 | char *lispy_function_keys[] = | |
4317 | { | |
4318 | 0, /* 0 */ | |
4319 | ||
4320 | 0, /* VK_LBUTTON 0x01 */ | |
4321 | 0, /* VK_RBUTTON 0x02 */ | |
4322 | "cancel", /* VK_CANCEL 0x03 */ | |
4323 | 0, /* VK_MBUTTON 0x04 */ | |
4324 | ||
4325 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
4326 | ||
4327 | "backspace", /* VK_BACK 0x08 */ | |
4328 | "tab", /* VK_TAB 0x09 */ | |
4329 | ||
4330 | 0, 0, /* 0x0A .. 0x0B */ | |
4331 | ||
4332 | "clear", /* VK_CLEAR 0x0C */ | |
4333 | "return", /* VK_RETURN 0x0D */ | |
4334 | ||
4335 | 0, 0, /* 0x0E .. 0x0F */ | |
4336 | ||
1161d367 GV |
4337 | 0, /* VK_SHIFT 0x10 */ |
4338 | 0, /* VK_CONTROL 0x11 */ | |
4339 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4340 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4341 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
4342 | |
4343 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
4344 | ||
1161d367 | 4345 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
4346 | |
4347 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
4348 | ||
4349 | 0, /* VK_SPACE 0x20 */ | |
4350 | "prior", /* VK_PRIOR 0x21 */ | |
4351 | "next", /* VK_NEXT 0x22 */ | |
4352 | "end", /* VK_END 0x23 */ | |
4353 | "home", /* VK_HOME 0x24 */ | |
4354 | "left", /* VK_LEFT 0x25 */ | |
4355 | "up", /* VK_UP 0x26 */ | |
4356 | "right", /* VK_RIGHT 0x27 */ | |
4357 | "down", /* VK_DOWN 0x28 */ | |
4358 | "select", /* VK_SELECT 0x29 */ | |
4359 | "print", /* VK_PRINT 0x2A */ | |
4360 | "execute", /* VK_EXECUTE 0x2B */ | |
4361 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4362 | "insert", /* VK_INSERT 0x2D */ | |
4363 | "delete", /* VK_DELETE 0x2E */ | |
4364 | "help", /* VK_HELP 0x2F */ | |
4365 | ||
4366 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
4367 | ||
4368 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4369 | ||
4370 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
4371 | ||
4372 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
4373 | ||
4374 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4375 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4376 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4377 | ||
e376f90d RS |
4378 | "lwindow", /* VK_LWIN 0x5B */ |
4379 | "rwindow", /* VK_RWIN 0x5C */ | |
4380 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
4381 | |
4382 | 0, 0, /* 0x5E .. 0x5F */ | |
4383 | ||
4384 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
4385 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4386 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4387 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4388 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4389 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4390 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4391 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4392 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4393 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4394 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4395 | "kp-add", /* VK_ADD 0x6B */ | |
4396 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4397 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4398 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4399 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4400 | "f1", /* VK_F1 0x70 */ | |
4401 | "f2", /* VK_F2 0x71 */ | |
4402 | "f3", /* VK_F3 0x72 */ | |
4403 | "f4", /* VK_F4 0x73 */ | |
4404 | "f5", /* VK_F5 0x74 */ | |
4405 | "f6", /* VK_F6 0x75 */ | |
4406 | "f7", /* VK_F7 0x76 */ | |
4407 | "f8", /* VK_F8 0x77 */ | |
4408 | "f9", /* VK_F9 0x78 */ | |
4409 | "f10", /* VK_F10 0x79 */ | |
4410 | "f11", /* VK_F11 0x7A */ | |
4411 | "f12", /* VK_F12 0x7B */ | |
4412 | "f13", /* VK_F13 0x7C */ | |
4413 | "f14", /* VK_F14 0x7D */ | |
4414 | "f15", /* VK_F15 0x7E */ | |
4415 | "f16", /* VK_F16 0x7F */ | |
4416 | "f17", /* VK_F17 0x80 */ | |
4417 | "f18", /* VK_F18 0x81 */ | |
4418 | "f19", /* VK_F19 0x82 */ | |
4419 | "f20", /* VK_F20 0x83 */ | |
4420 | "f21", /* VK_F21 0x84 */ | |
4421 | "f22", /* VK_F22 0x85 */ | |
4422 | "f23", /* VK_F23 0x86 */ | |
4423 | "f24", /* VK_F24 0x87 */ | |
4424 | ||
4425 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
4426 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
4427 | ||
4428 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
4429 | "scroll", /* VK_SCROLL 0x91 */ | |
4430 | ||
e376f90d RS |
4431 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4432 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4433 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4434 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4435 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4436 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4437 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4438 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4439 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4440 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4441 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4442 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4443 | ||
4444 | 0, 0, /* 0x9E .. 0x9F */ | |
4445 | ||
e98a93eb GV |
4446 | /* |
4447 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4448 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4449 | * No other API or message will distinguish left and right keys this way. |
4450 | */ | |
4451 | /* 0xA0 .. 0xEF */ | |
4452 | ||
4453 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4454 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4455 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4456 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4457 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4458 | ||
4459 | /* 0xF0 .. 0xF5 */ | |
4460 | ||
4461 | 0, 0, 0, 0, 0, 0, | |
4462 | ||
4463 | "attn", /* VK_ATTN 0xF6 */ | |
4464 | "crsel", /* VK_CRSEL 0xF7 */ | |
4465 | "exsel", /* VK_EXSEL 0xF8 */ | |
4466 | "ereof", /* VK_EREOF 0xF9 */ | |
4467 | "play", /* VK_PLAY 0xFA */ | |
4468 | "zoom", /* VK_ZOOM 0xFB */ | |
4469 | "noname", /* VK_NONAME 0xFC */ | |
4470 | "pa1", /* VK_PA1 0xFD */ | |
4471 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4472 | 0 /* 0xFF */ |
e98a93eb GV |
4473 | }; |
4474 | ||
04f215f0 | 4475 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4476 | |
37cd9f30 KH |
4477 | #ifdef XK_kana_A |
4478 | static char *lispy_kana_keys[] = | |
4479 | { | |
4480 | /* X Keysym value */ | |
4481 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4482 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4483 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4484 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4485 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4486 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4487 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4488 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4489 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4490 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
4491 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
4492 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
4493 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4494 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4495 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4496 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4497 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4498 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4499 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4500 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4501 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4502 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4503 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4504 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4505 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4506 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4507 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4508 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4509 | }; | |
4510 | #endif /* XK_kana_A */ | |
4511 | ||
04f215f0 RS |
4512 | #define FUNCTION_KEY_OFFSET 0xff00 |
4513 | ||
284f4730 JB |
4514 | /* You'll notice that this table is arranged to be conveniently |
4515 | indexed by X Windows keysym values. */ | |
4516 | static char *lispy_function_keys[] = | |
4517 | { | |
4518 | /* X Keysym value */ | |
4519 | ||
75045dcb RS |
4520 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4521 | "backspace", "tab", "linefeed", "clear", | |
4522 | 0, "return", 0, 0, | |
4523 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4524 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4525 | 0, 0, 0, 0, |
75045dcb RS |
4526 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4527 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4528 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4529 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4530 | "eisu-toggle", /* 0xff30...3f */ | |
4531 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4532 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4533 | ||
75045dcb RS |
4534 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4535 | "down", "prior", "next", "end", | |
4536 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4537 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4538 | "print", | |
4539 | "execute", | |
4540 | "insert", | |
4541 | 0, /* 0xff64 */ | |
4542 | "undo", | |
4543 | "redo", | |
4544 | "menu", | |
4545 | "find", | |
4546 | "cancel", | |
4547 | "help", | |
4548 | "break", /* 0xff6b */ | |
4549 | ||
75045dcb RS |
4550 | 0, 0, 0, 0, |
4551 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4552 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4553 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4554 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4555 | "kp-tab", /* 0xff89 */ | |
4556 | 0, 0, 0, | |
4557 | "kp-enter", /* 0xff8d */ | |
4558 | 0, 0, 0, | |
4559 | "kp-f1", /* 0xff91 */ | |
4560 | "kp-f2", | |
4561 | "kp-f3", | |
4562 | "kp-f4", | |
872157e7 RS |
4563 | "kp-home", /* 0xff95 */ |
4564 | "kp-left", | |
4565 | "kp-up", | |
4566 | "kp-right", | |
4567 | "kp-down", | |
4568 | "kp-prior", /* kp-page-up */ | |
4569 | "kp-next", /* kp-page-down */ | |
4570 | "kp-end", | |
4571 | "kp-begin", | |
4572 | "kp-insert", | |
4573 | "kp-delete", | |
4574 | 0, /* 0xffa0 */ | |
4575 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4576 | "kp-multiply", /* 0xffaa */ |
4577 | "kp-add", | |
4578 | "kp-separator", | |
4579 | "kp-subtract", | |
4580 | "kp-decimal", | |
4581 | "kp-divide", /* 0xffaf */ | |
4582 | "kp-0", /* 0xffb0 */ | |
4583 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4584 | 0, /* 0xffba */ | |
4585 | 0, 0, | |
4586 | "kp-equal", /* 0xffbd */ | |
4587 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4588 | "f2", |
4589 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4590 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4591 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4592 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4593 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4594 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4595 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4596 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4597 | }; |
284f4730 | 4598 | |
04f215f0 RS |
4599 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4600 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4601 | ||
4602 | static char *iso_lispy_function_keys[] = | |
4603 | { | |
4604 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4605 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4606 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4607 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4608 | "iso-lefttab", /* 0xfe20 */ | |
4609 | "iso-move-line-up", "iso-move-line-down", | |
4610 | "iso-partial-line-up", "iso-partial-line-down", | |
4611 | "iso-partial-space-left", "iso-partial-space-right", | |
4612 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4613 | "iso-release-margin-left", "iso-release-margin-right", | |
4614 | "iso-release-both-margins", | |
4615 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4616 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4617 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4618 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4619 | }; | |
4620 | ||
4621 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4622 | |
8e1e4240 | 4623 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4624 | |
07de30b9 GV |
4625 | #ifdef WINDOWSNT |
4626 | /* mouse-wheel events are generated by the wheel on devices such as | |
4627 | the MS Intellimouse. The wheel sits in between the left and right | |
4628 | mouse buttons, and is typically used to scroll or zoom the window | |
4629 | underneath the pointer. mouse-wheel events specify the object on | |
4630 | which they operate, and a delta corresponding to the amount and | |
4631 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4632 | generates a mouse-2 event. */ | |
4633 | static char *lispy_mouse_wheel_names[] = | |
4634 | { | |
4635 | "mouse-wheel" | |
4636 | }; | |
a24dc617 | 4637 | |
07de30b9 GV |
4638 | #endif /* WINDOWSNT */ |
4639 | ||
a24dc617 RS |
4640 | /* drag-n-drop events are generated when a set of selected files are |
4641 | dragged from another application and dropped onto an Emacs window. */ | |
4642 | static char *lispy_drag_n_drop_names[] = | |
4643 | { | |
4644 | "drag-n-drop" | |
4645 | }; | |
4646 | ||
3c370943 | 4647 | /* Scroll bar parts. */ |
4bb994d1 | 4648 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4649 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4650 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4651 | |
3c370943 JB |
4652 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4653 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4654 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4655 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4656 | }; |
4657 | ||
5bf68f6e AS |
4658 | /* User signal events. */ |
4659 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4660 | ||
4661 | Lisp_Object *lispy_user_signals[] = | |
4662 | { | |
4663 | &Qusr1_signal, &Qusr2_signal | |
4664 | }; | |
4665 | ||
4bb994d1 | 4666 | |
7b4aedb9 | 4667 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4668 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4669 | |
4670 | The elements have the form | |
4671 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4672 | where REST is the cdr of a position as it would be reported in the event. | |
4673 | ||
4674 | The make_lispy_event function stores positions here to tell the | |
4675 | difference between click and drag events, and to store the starting | |
4676 | location to be included in drag events. */ | |
4677 | ||
4678 | static Lisp_Object button_down_location; | |
88cb0656 | 4679 | |
fbcd35bd JB |
4680 | /* Information about the most recent up-going button event: Which |
4681 | button, what location, and what time. */ | |
4682 | ||
559f9d04 RS |
4683 | static int last_mouse_button; |
4684 | static int last_mouse_x; | |
4685 | static int last_mouse_y; | |
4686 | static unsigned long button_down_time; | |
fbcd35bd | 4687 | |
222d557c GM |
4688 | /* The maximum time between clicks to make a double-click, or Qnil to |
4689 | disable double-click detection, or Qt for no time limit. */ | |
4690 | ||
564dc952 | 4691 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4692 | |
222d557c GM |
4693 | /* Maximum number of pixels the mouse may be moved between clicks |
4694 | to make a double-click. */ | |
4695 | ||
31ade731 | 4696 | EMACS_INT double_click_fuzz; |
222d557c | 4697 | |
fbcd35bd JB |
4698 | /* The number of clicks in this multiple-click. */ |
4699 | ||
4700 | int double_click_count; | |
4701 | ||
284f4730 JB |
4702 | /* Given a struct input_event, build the lisp event which represents |
4703 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4704 | movement buffer, which should have a movement event in it. |
4705 | ||
4706 | Note that events must be passed to this function in the order they | |
4707 | are received; this function stores the location of button presses | |
4708 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4709 | |
4710 | static Lisp_Object | |
4711 | make_lispy_event (event) | |
4712 | struct input_event *event; | |
4713 | { | |
79a7046c RS |
4714 | int i; |
4715 | ||
0220c518 | 4716 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4717 | { |
284f4730 JB |
4718 | /* A simple keystroke. */ |
4719 | case ascii_keystroke: | |
86e5706b | 4720 | { |
9343ab07 | 4721 | Lisp_Object lispy_c; |
e9bf89a0 | 4722 | int c = event->code & 0377; |
5a1c6df8 JB |
4723 | /* Turn ASCII characters into control characters |
4724 | when proper. */ | |
4725 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4726 | c = make_ctrl_char (c); |
4727 | ||
4728 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4729 | just above, and the shift key was taken care of by the X code, | |
4730 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4731 | c |= (event->modifiers |
4732 | & (meta_modifier | alt_modifier | |
4733 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4734 | /* Distinguish Shift-SPC from SPC. */ |
4735 | if ((event->code & 0377) == 040 | |
4736 | && event->modifiers & shift_modifier) | |
4737 | c |= shift_modifier; | |
559f9d04 | 4738 | button_down_time = 0; |
bb9e9bed | 4739 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4740 | return lispy_c; |
86e5706b | 4741 | } |
284f4730 | 4742 | |
a50e723f KH |
4743 | case multibyte_char_keystroke: |
4744 | { | |
4745 | Lisp_Object lispy_c; | |
4746 | ||
4747 | XSETFASTINT (lispy_c, event->code); | |
4748 | return lispy_c; | |
4749 | } | |
4750 | ||
284f4730 JB |
4751 | /* A function key. The symbol may need to have modifier prefixes |
4752 | tacked onto it. */ | |
4753 | case non_ascii_keystroke: | |
559f9d04 | 4754 | button_down_time = 0; |
e9bf89a0 RS |
4755 | |
4756 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4757 | if (event->code == lispy_accent_codes[i]) | |
4758 | return modify_event_symbol (i, | |
4759 | event->modifiers, | |
80e4aa30 | 4760 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4761 | lispy_accent_keys, &accent_key_syms, |
4762 | (sizeof (lispy_accent_keys) | |
4763 | / sizeof (lispy_accent_keys[0]))); | |
4764 | ||
270a208f | 4765 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4766 | if (event->code & (1 << 28)) |
4767 | { | |
4768 | /* We need to use an alist rather than a vector as the cache | |
4769 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4770 | if (NILP (current_kboard->system_key_syms)) |
4771 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4772 | return modify_event_symbol (event->code, |
80e4aa30 | 4773 | event->modifiers, |
7c97ffdc KH |
4774 | Qfunction_key, |
4775 | current_kboard->Vsystem_key_alist, | |
142e6c73 | 4776 | 0, ¤t_kboard->system_key_syms, |
27fd22dc | 4777 | (unsigned) -1); |
80e4aa30 RS |
4778 | } |
4779 | ||
37cd9f30 KH |
4780 | #ifdef XK_kana_A |
4781 | if (event->code >= 0x400 && event->code < 0x500) | |
4782 | return modify_event_symbol (event->code - 0x400, | |
4783 | event->modifiers & ~shift_modifier, | |
4784 | Qfunction_key, Qnil, | |
4785 | lispy_kana_keys, &func_key_syms, | |
4786 | (sizeof (lispy_kana_keys) | |
4787 | / sizeof (lispy_kana_keys[0]))); | |
4788 | #endif /* XK_kana_A */ | |
4789 | ||
111c4138 | 4790 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4791 | if (event->code < FUNCTION_KEY_OFFSET |
4792 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4793 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4794 | event->modifiers, | |
4795 | Qfunction_key, Qnil, | |
4796 | iso_lispy_function_keys, &func_key_syms, | |
4797 | (sizeof (iso_lispy_function_keys) | |
4798 | / sizeof (iso_lispy_function_keys[0]))); | |
4799 | else | |
111c4138 | 4800 | #endif |
656280a6 GM |
4801 | |
4802 | #ifdef HAVE_X_WINDOWS | |
4803 | if (event->code - FUNCTION_KEY_OFFSET < 0 | |
4804 | || (event->code - FUNCTION_KEY_OFFSET | |
4805 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys)) | |
4806 | { | |
4807 | /* EVENT->code is an unknown keysym, for example someone | |
4808 | assigned `ccaron' to a key in a locale where | |
4809 | XmbLookupString doesn't return a translation for it. */ | |
4810 | char *name; | |
4811 | Lisp_Object symbol; | |
4812 | ||
4813 | BLOCK_INPUT; | |
4814 | /* This returns a pointer to a static area. Don't free it. */ | |
4815 | name = XKeysymToString (event->code); | |
4816 | symbol = name ? intern (name) : Qnil; | |
4817 | UNBLOCK_INPUT; | |
4818 | ||
4819 | if (!NILP (symbol)) | |
4820 | return apply_modifiers (event->modifiers, symbol); | |
4821 | } | |
4822 | #endif /* HAVE_X_WINDOWS */ | |
4823 | ||
4824 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
4825 | event->modifiers, | |
4826 | Qfunction_key, Qnil, | |
4827 | lispy_function_keys, &func_key_syms, | |
4828 | (sizeof (lispy_function_keys) | |
4829 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4830 | |
514354e9 | 4831 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4832 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4833 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4834 | case mouse_click: |
7ee32cda | 4835 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4836 | case scroll_bar_click: |
7ee32cda | 4837 | #endif |
284f4730 | 4838 | { |
e9bf89a0 | 4839 | int button = event->code; |
559f9d04 | 4840 | int is_double; |
7b4aedb9 | 4841 | Lisp_Object position; |
dbc4e1c1 JB |
4842 | Lisp_Object *start_pos_ptr; |
4843 | Lisp_Object start_pos; | |
c5cf2109 | 4844 | Lisp_Object window; |
284f4730 | 4845 | |
8c907a56 GM |
4846 | position = Qnil; |
4847 | ||
7b4aedb9 JB |
4848 | /* Build the position as appropriate for this mouse click. */ |
4849 | if (event->kind == mouse_click) | |
284f4730 | 4850 | { |
7b4aedb9 | 4851 | int part; |
c5cf2109 | 4852 | struct frame *f = XFRAME (event->frame_or_window); |
7b4aedb9 | 4853 | Lisp_Object posn; |
7ee32cda | 4854 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4855 | int row, column; |
4856 | ||
5da3133a RS |
4857 | /* Ignore mouse events that were made on frame that |
4858 | have been deleted. */ | |
4859 | if (! FRAME_LIVE_P (f)) | |
4860 | return Qnil; | |
4861 | ||
7ee32cda GM |
4862 | /* EVENT->x and EVENT->y are frame-relative pixel |
4863 | coordinates at this place. Under old redisplay, COLUMN | |
4864 | and ROW are set to frame relative glyph coordinates | |
4865 | which are then used to determine whether this click is | |
4866 | in a menu (non-toolkit version). */ | |
4867 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4868 | &column, &row, NULL, 1); | |
7b4aedb9 | 4869 | |
eef045bf RS |
4870 | #ifndef USE_X_TOOLKIT |
4871 | /* In the non-toolkit version, clicks on the menu bar | |
4872 | are ordinary button events in the event buffer. | |
4873 | Distinguish them, and invoke the menu. | |
4874 | ||
4875 | (In the toolkit version, the toolkit handles the menu bar | |
4876 | and Emacs doesn't know about it until after the user | |
4877 | makes a selection.) */ | |
2ee250ec RS |
4878 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4879 | && (event->modifiers & down_modifier)) | |
bb936752 | 4880 | { |
b7c49376 | 4881 | Lisp_Object items, item; |
0a0e8fe6 RS |
4882 | int hpos; |
4883 | int i; | |
4884 | ||
2ee250ec | 4885 | #if 0 |
0a0e8fe6 RS |
4886 | /* Activate the menu bar on the down event. If the |
4887 | up event comes in before the menu code can deal with it, | |
4888 | just ignore it. */ | |
4889 | if (! (event->modifiers & down_modifier)) | |
4890 | return Qnil; | |
2ee250ec | 4891 | #endif |
0aafc975 | 4892 | |
7ee32cda | 4893 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4894 | item = Qnil; |
5ec75a55 | 4895 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4896 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4897 | { |
4898 | Lisp_Object pos, string; | |
129004d3 GM |
4899 | string = AREF (items, i + 1); |
4900 | pos = AREF (items, i + 3); | |
b7c49376 RS |
4901 | if (NILP (string)) |
4902 | break; | |
9e20143a RS |
4903 | if (column >= XINT (pos) |
4904 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 | 4905 | { |
129004d3 | 4906 | item = AREF (items, i); |
b7c49376 RS |
4907 | break; |
4908 | } | |
5ec75a55 | 4909 | } |
9e20143a | 4910 | |
7ee32cda GM |
4911 | /* ELisp manual 2.4b says (x y) are window relative but |
4912 | code says they are frame-relative. */ | |
5ec75a55 RS |
4913 | position |
4914 | = Fcons (event->frame_or_window, | |
4915 | Fcons (Qmenu_bar, | |
4916 | Fcons (Fcons (event->x, event->y), | |
4917 | Fcons (make_number (event->timestamp), | |
4918 | Qnil)))); | |
4919 | ||
b7c49376 | 4920 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4921 | } |
eef045bf | 4922 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4923 | |
7ee32cda GM |
4924 | /* Set `window' to the window under frame pixel coordinates |
4925 | event->x/event->y. */ | |
4926 | window = window_from_coordinates (f, XINT (event->x), | |
4927 | XINT (event->y), &part, 0); | |
0aafc975 | 4928 | |
8c18cbfb | 4929 | if (!WINDOWP (window)) |
78ced549 RS |
4930 | { |
4931 | window = event->frame_or_window; | |
4932 | posn = Qnil; | |
4933 | } | |
284f4730 | 4934 | else |
7b4aedb9 | 4935 | { |
7ee32cda GM |
4936 | /* It's a click in window window at frame coordinates |
4937 | event->x/ event->y. */ | |
4938 | struct window *w = XWINDOW (window); | |
4939 | ||
4940 | /* Get window relative coordinates. Original code | |
4941 | `rounded' this to glyph boundaries. */ | |
4942 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4943 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4944 | ||
4945 | /* Set event coordinates to window-relative coordinates | |
4946 | for constructing the Lisp event below. */ | |
4947 | XSETINT (event->x, wx); | |
4948 | XSETINT (event->y, wy); | |
4949 | ||
4950 | if (part == 1 || part == 3) | |
4951 | { | |
902ae620 | 4952 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
4953 | the mouse that may have a `local-map' property. */ |
4954 | Lisp_Object string; | |
4955 | int charpos; | |
4956 | ||
045dee35 | 4957 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4958 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4959 | if (STRINGP (string)) | |
4960 | string_info = Fcons (string, make_number (charpos)); | |
4961 | } | |
7b4aedb9 JB |
4962 | else if (part == 2) |
4963 | posn = Qvertical_line; | |
4964 | else | |
a955ffa2 GM |
4965 | { |
4966 | Lisp_Object object; | |
4967 | struct display_pos p; | |
4968 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
4969 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
4970 | if (STRINGP (object)) |
4971 | string_info | |
4972 | = Fcons (object, | |
4973 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 4974 | } |
7b4aedb9 JB |
4975 | } |
4976 | ||
5ec75a55 RS |
4977 | position |
4978 | = Fcons (window, | |
4979 | Fcons (posn, | |
4980 | Fcons (Fcons (event->x, event->y), | |
4981 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4982 | (NILP (string_info) |
4983 | ? Qnil | |
4984 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4985 | } |
7ee32cda | 4986 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4987 | else |
88cb0656 | 4988 | { |
7ee32cda | 4989 | /* It's a scrollbar click. */ |
9e20143a RS |
4990 | Lisp_Object portion_whole; |
4991 | Lisp_Object part; | |
4992 | ||
4993 | window = event->frame_or_window; | |
4994 | portion_whole = Fcons (event->x, event->y); | |
4995 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4996 | |
db08707d RS |
4997 | position |
4998 | = Fcons (window, | |
4999 | Fcons (Qvertical_scroll_bar, | |
5000 | Fcons (portion_whole, | |
5001 | Fcons (make_number (event->timestamp), | |
5002 | Fcons (part, Qnil))))); | |
88cb0656 | 5003 | } |
7ee32cda | 5004 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5005 | |
129004d3 | 5006 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5007 | { |
5008 | button_down_location = larger_vector (button_down_location, | |
5009 | button + 1, Qnil); | |
5010 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5011 | } | |
5012 | ||
129004d3 | 5013 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5014 | start_pos = *start_pos_ptr; |
5015 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5016 | |
c5cf2109 GM |
5017 | { |
5018 | /* On window-system frames, use the value of | |
5019 | double-click-fuzz as is. On other frames, interpret it | |
5020 | as a multiple of 1/8 characters. */ | |
5021 | struct frame *f; | |
5022 | int fuzz; | |
5023 | ||
5024 | if (WINDOWP (event->frame_or_window)) | |
5025 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5026 | else if (FRAMEP (event->frame_or_window)) | |
5027 | f = XFRAME (event->frame_or_window); | |
5028 | else | |
5029 | abort (); | |
5030 | ||
5031 | if (FRAME_WINDOW_P (f)) | |
5032 | fuzz = double_click_fuzz; | |
5033 | else | |
5034 | fuzz = double_click_fuzz / 8; | |
5035 | ||
5036 | is_double = (button == last_mouse_button | |
5037 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5038 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5039 | && button_down_time != 0 | |
5040 | && (EQ (Vdouble_click_time, Qt) | |
5041 | || (INTEGERP (Vdouble_click_time) | |
5042 | && ((int)(event->timestamp - button_down_time) | |
5043 | < XINT (Vdouble_click_time))))); | |
5044 | } | |
222d557c | 5045 | |
559f9d04 RS |
5046 | last_mouse_button = button; |
5047 | last_mouse_x = XINT (event->x); | |
5048 | last_mouse_y = XINT (event->y); | |
5049 | ||
7b4aedb9 JB |
5050 | /* If this is a button press, squirrel away the location, so |
5051 | we can decide later whether it was a click or a drag. */ | |
5052 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5053 | { |
5054 | if (is_double) | |
5055 | { | |
5056 | double_click_count++; | |
5057 | event->modifiers |= ((double_click_count > 2) | |
5058 | ? triple_modifier | |
5059 | : double_modifier); | |
5060 | } | |
5061 | else | |
5062 | double_click_count = 1; | |
5063 | button_down_time = event->timestamp; | |
5064 | *start_pos_ptr = Fcopy_alist (position); | |
5065 | } | |
7b4aedb9 | 5066 | |
88cb0656 | 5067 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5068 | see if this was a click or a drag. */ |
88cb0656 JB |
5069 | else if (event->modifiers & up_modifier) |
5070 | { | |
129004d3 GM |
5071 | /* If we did not see a down before this up, ignore the up. |
5072 | Probably this happened because the down event chose a | |
5073 | menu item. It would be an annoyance to treat the | |
5074 | release of the button that chose the menu item as a | |
5075 | separate event. */ | |
48e416d4 | 5076 | |
8c18cbfb | 5077 | if (!CONSP (start_pos)) |
48e416d4 RS |
5078 | return Qnil; |
5079 | ||
88cb0656 | 5080 | event->modifiers &= ~up_modifier; |
48e416d4 | 5081 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5082 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5083 | event->modifiers |= click_modifier; |
5084 | else | |
48e416d4 | 5085 | #endif |
dbc4e1c1 | 5086 | { |
9b8eb840 | 5087 | Lisp_Object down; |
d31053f9 | 5088 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5089 | |
d31053f9 RS |
5090 | /* The third element of every position |
5091 | should be the (x,y) pair. */ | |
5092 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5093 | if (CONSP (down) |
5094 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5095 | { |
7a6a97d7 SM |
5096 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5097 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5098 | } |
5099 | ||
5100 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5101 | && ydiff < double_click_fuzz | |
5102 | && ydiff > - double_click_fuzz) | |
5103 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5104 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5105 | else |
5106 | { | |
d31053f9 RS |
5107 | button_down_time = 0; |
5108 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5109 | } |
129004d3 | 5110 | |
bc536d84 RS |
5111 | /* Don't check is_double; treat this as multiple |
5112 | if the down-event was multiple. */ | |
5113 | if (double_click_count > 1) | |
5114 | event->modifiers |= ((double_click_count > 2) | |
5115 | ? triple_modifier | |
5116 | : double_modifier); | |
dbc4e1c1 | 5117 | } |
88cb0656 JB |
5118 | } |
5119 | else | |
5120 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5121 | the up_modifier set. */ |
88cb0656 JB |
5122 | abort (); |
5123 | ||
88cb0656 | 5124 | { |
7b4aedb9 | 5125 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5126 | Lisp_Object head; |
5127 | ||
5128 | head = modify_event_symbol (button, | |
5129 | event->modifiers, | |
8e1e4240 GM |
5130 | Qmouse_click, Vlispy_mouse_stem, |
5131 | NULL, | |
5132 | &mouse_syms, | |
5133 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5134 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5135 | return Fcons (head, |
5136 | Fcons (start_pos, | |
5137 | Fcons (position, | |
5138 | Qnil))); | |
fbcd35bd JB |
5139 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5140 | return Fcons (head, | |
5141 | Fcons (position, | |
5142 | Fcons (make_number (double_click_count), | |
5143 | Qnil))); | |
88cb0656 JB |
5144 | else |
5145 | return Fcons (head, | |
7b4aedb9 | 5146 | Fcons (position, |
88cb0656 JB |
5147 | Qnil)); |
5148 | } | |
284f4730 | 5149 | } |
db08707d | 5150 | |
7ee32cda GM |
5151 | #if USE_TOOLKIT_SCROLL_BARS |
5152 | ||
5153 | /* We don't have down and up events if using toolkit scroll bars, | |
5154 | so make this always a click event. Store in the `part' of | |
5155 | the Lisp event a symbol which maps to the following actions: | |
5156 | ||
5157 | `above_handle' page up | |
5158 | `below_handle' page down | |
5159 | `up' line up | |
5160 | `down' line down | |
5161 | `top' top of buffer | |
5162 | `bottom' bottom of buffer | |
5163 | `handle' thumb has been dragged. | |
5164 | `end-scroll' end of interaction with scroll bar | |
5165 | ||
5166 | The incoming input_event contains in its `part' member an | |
5167 | index of type `enum scroll_bar_part' which we can use as an | |
5168 | index in scroll_bar_parts to get the appropriate symbol. */ | |
5169 | ||
5170 | case scroll_bar_click: | |
5171 | { | |
5172 | Lisp_Object position, head, window, portion_whole, part; | |
5173 | ||
5174 | window = event->frame_or_window; | |
5175 | portion_whole = Fcons (event->x, event->y); | |
5176 | part = *scroll_bar_parts[(int) event->part]; | |
5177 | ||
5178 | position | |
5179 | = Fcons (window, | |
5180 | Fcons (Qvertical_scroll_bar, | |
5181 | Fcons (portion_whole, | |
5182 | Fcons (make_number (event->timestamp), | |
5183 | Fcons (part, Qnil))))); | |
5184 | ||
5185 | /* Always treat scroll bar events as clicks. */ | |
5186 | event->modifiers |= click_modifier; | |
5187 | ||
5188 | /* Get the symbol we should use for the mouse click. */ | |
5189 | head = modify_event_symbol (event->code, | |
5190 | event->modifiers, | |
8e1e4240 GM |
5191 | Qmouse_click, |
5192 | Vlispy_mouse_stem, | |
5193 | NULL, &mouse_syms, | |
5194 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5195 | return Fcons (head, Fcons (position, Qnil)); |
5196 | } | |
5197 | ||
5198 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
5199 | ||
db08707d | 5200 | #ifdef WINDOWSNT |
fbd6baed | 5201 | case w32_scroll_bar_click: |
db08707d RS |
5202 | { |
5203 | int button = event->code; | |
5204 | int is_double; | |
5205 | Lisp_Object position; | |
5206 | Lisp_Object *start_pos_ptr; | |
5207 | Lisp_Object start_pos; | |
5208 | ||
db08707d RS |
5209 | { |
5210 | Lisp_Object window; | |
5211 | Lisp_Object portion_whole; | |
5212 | Lisp_Object part; | |
5213 | ||
5214 | window = event->frame_or_window; | |
5215 | portion_whole = Fcons (event->x, event->y); | |
5216 | part = *scroll_bar_parts[(int) event->part]; | |
5217 | ||
e8886a1d RS |
5218 | position |
5219 | = Fcons (window, | |
5220 | Fcons (Qvertical_scroll_bar, | |
5221 | Fcons (portion_whole, | |
5222 | Fcons (make_number (event->timestamp), | |
5223 | Fcons (part, Qnil))))); | |
db08707d RS |
5224 | } |
5225 | ||
fbd6baed | 5226 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5227 | event->modifiers |= click_modifier; |
5228 | ||
5229 | { | |
5230 | /* Get the symbol we should use for the mouse click. */ | |
5231 | Lisp_Object head; | |
5232 | ||
5233 | head = modify_event_symbol (button, | |
5234 | event->modifiers, | |
8e1e4240 GM |
5235 | Qmouse_click, |
5236 | Vlispy_mouse_stem, | |
5237 | NULL, &mouse_syms, | |
5238 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5239 | return Fcons (head, |
5240 | Fcons (position, | |
5241 | Qnil)); | |
5242 | } | |
5243 | } | |
07de30b9 GV |
5244 | case mouse_wheel: |
5245 | { | |
5246 | int part; | |
5247 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5248 | Lisp_Object window; | |
5249 | Lisp_Object posn; | |
5250 | Lisp_Object head, position; | |
5251 | int row, column; | |
5252 | ||
5253 | /* Ignore mouse events that were made on frame that | |
5254 | have been deleted. */ | |
5255 | if (! FRAME_LIVE_P (f)) | |
5256 | return Qnil; | |
5257 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5258 | &column, &row, NULL, 1); | |
afabdbe5 JR |
5259 | window = window_from_coordinates (f, XINT (event->x), |
5260 | XINT (event->y), &part, 0); | |
07de30b9 GV |
5261 | |
5262 | if (!WINDOWP (window)) | |
5263 | { | |
5264 | window = event->frame_or_window; | |
5265 | posn = Qnil; | |
5266 | } | |
5267 | else | |
5268 | { | |
5269 | int pixcolumn, pixrow; | |
5270 | column -= XINT (XWINDOW (window)->left); | |
5271 | row -= XINT (XWINDOW (window)->top); | |
e1bfeab2 JR |
5272 | glyph_to_pixel_coords (XWINDOW(window), column, row, |
5273 | &pixcolumn, &pixrow); | |
07de30b9 GV |
5274 | XSETINT (event->x, pixcolumn); |
5275 | XSETINT (event->y, pixrow); | |
5276 | ||
5277 | if (part == 1) | |
5278 | posn = Qmode_line; | |
5279 | else if (part == 2) | |
5280 | posn = Qvertical_line; | |
7ee32cda | 5281 | else if (part == 3) |
045dee35 | 5282 | posn = Qheader_line; |
07de30b9 | 5283 | else |
a955ffa2 GM |
5284 | { |
5285 | Lisp_Object object; | |
5286 | struct display_pos p; | |
5287 | buffer_posn_from_coords (XWINDOW (window), &column, &row, | |
5288 | &object, &p); | |
5289 | posn = make_number (CHARPOS (p.pos)); | |
5290 | } | |
07de30b9 | 5291 | } |
db08707d | 5292 | |
07de30b9 GV |
5293 | { |
5294 | Lisp_Object head, position; | |
5295 | ||
5296 | position | |
5297 | = Fcons (window, | |
5298 | Fcons (posn, | |
5299 | Fcons (Fcons (event->x, event->y), | |
5300 | Fcons (make_number (event->timestamp), | |
5301 | Qnil)))); | |
5302 | ||
5303 | head = modify_event_symbol (0, event->modifiers, | |
5304 | Qmouse_wheel, Qnil, | |
5305 | lispy_mouse_wheel_names, | |
5306 | &mouse_wheel_syms, 1); | |
5307 | return Fcons (head, | |
5308 | Fcons (position, | |
5309 | Fcons (make_number (event->code), | |
5310 | Qnil))); | |
5311 | } | |
5312 | } | |
5313 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
5314 | |
5315 | case drag_n_drop: | |
5316 | { | |
5317 | int part; | |
5318 | FRAME_PTR f; | |
5319 | Lisp_Object window; | |
5320 | Lisp_Object posn; | |
a24dc617 | 5321 | Lisp_Object files; |
a24dc617 RS |
5322 | |
5323 | /* The frame_or_window field should be a cons of the frame in | |
5324 | which the event occurred and a list of the filenames | |
5325 | dropped. */ | |
5326 | if (! CONSP (event->frame_or_window)) | |
5327 | abort (); | |
5328 | ||
7539e11f KR |
5329 | f = XFRAME (XCAR (event->frame_or_window)); |
5330 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5331 | |
5332 | /* Ignore mouse events that were made on frames that | |
5333 | have been deleted. */ | |
5334 | if (! FRAME_LIVE_P (f)) | |
5335 | return Qnil; | |
afabdbe5 JR |
5336 | |
5337 | window = window_from_coordinates (f, XINT (event->x), | |
5338 | XINT (event->y), &part, 0); | |
a24dc617 RS |
5339 | |
5340 | if (!WINDOWP (window)) | |
5341 | { | |
7539e11f | 5342 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5343 | posn = Qnil; |
5344 | } | |
5345 | else | |
5346 | { | |
7ee32cda GM |
5347 | /* It's an event in window `window' at frame coordinates |
5348 | event->x/ event->y. */ | |
5349 | struct window *w = XWINDOW (window); | |
5350 | ||
5351 | /* Get window relative coordinates. */ | |
5352 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5353 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5354 | ||
5355 | /* Set event coordinates to window-relative coordinates | |
5356 | for constructing the Lisp event below. */ | |
5357 | XSETINT (event->x, wx); | |
5358 | XSETINT (event->y, wy); | |
a24dc617 RS |
5359 | |
5360 | if (part == 1) | |
5361 | posn = Qmode_line; | |
5362 | else if (part == 2) | |
5363 | posn = Qvertical_line; | |
7ee32cda | 5364 | else if (part == 3) |
045dee35 | 5365 | posn = Qheader_line; |
a24dc617 | 5366 | else |
a955ffa2 GM |
5367 | { |
5368 | Lisp_Object object; | |
5369 | struct display_pos p; | |
5370 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5371 | posn = make_number (CHARPOS (p.pos)); | |
5372 | } | |
a24dc617 RS |
5373 | } |
5374 | ||
5375 | { | |
5376 | Lisp_Object head, position; | |
5377 | ||
5378 | position | |
5379 | = Fcons (window, | |
5380 | Fcons (posn, | |
5381 | Fcons (Fcons (event->x, event->y), | |
5382 | Fcons (make_number (event->timestamp), | |
5383 | Qnil)))); | |
5384 | ||
5385 | head = modify_event_symbol (0, event->modifiers, | |
5386 | Qdrag_n_drop, Qnil, | |
5387 | lispy_drag_n_drop_names, | |
5388 | &drag_n_drop_syms, 1); | |
5389 | return Fcons (head, | |
5390 | Fcons (position, | |
5391 | Fcons (files, | |
5392 | Qnil))); | |
5393 | } | |
5394 | } | |
514354e9 | 5395 | #endif /* HAVE_MOUSE */ |
284f4730 | 5396 | |
1a578e9b | 5397 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh) |
da8f7368 GM |
5398 | case MENU_BAR_EVENT: |
5399 | if (EQ (event->arg, event->frame_or_window)) | |
5400 | /* This is the prefix key. We translate this to | |
5401 | `(menu_bar)' because the code in keyboard.c for menu | |
5402 | events, which we use, relies on this. */ | |
5403 | return Fcons (Qmenu_bar, Qnil); | |
5404 | return event->arg; | |
2470a66f KH |
5405 | #endif |
5406 | ||
9ea173e8 | 5407 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5408 | if (EQ (event->arg, event->frame_or_window)) |
5409 | /* This is the prefix key. We translate this to | |
27fd22dc | 5410 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5411 | events, which we use, relies on this. */ |
5412 | return Fcons (Qtool_bar, Qnil); | |
5413 | else if (SYMBOLP (event->arg)) | |
5414 | return apply_modifiers (event->modifiers, event->arg); | |
5415 | return event->arg; | |
5416 | ||
5417 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5418 | /* A user signal. */ |
5419 | return *lispy_user_signals[event->code]; | |
5420 | ||
4ebc27a5 JD |
5421 | case save_session_event: |
5422 | return Qsave_session; | |
5423 | ||
284f4730 JB |
5424 | /* The 'kind' field of the event is something we don't recognize. */ |
5425 | default: | |
48e416d4 | 5426 | abort (); |
284f4730 JB |
5427 | } |
5428 | } | |
5429 | ||
514354e9 | 5430 | #ifdef HAVE_MOUSE |
6cbff1cb | 5431 | |
284f4730 | 5432 | static Lisp_Object |
7b4aedb9 | 5433 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5434 | FRAME_PTR frame; |
7b4aedb9 | 5435 | Lisp_Object bar_window; |
3c370943 | 5436 | enum scroll_bar_part part; |
284f4730 | 5437 | Lisp_Object x, y; |
e5d77022 | 5438 | unsigned long time; |
284f4730 | 5439 | { |
3c370943 | 5440 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5441 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5442 | { |
9b8eb840 | 5443 | Lisp_Object part_sym; |
4bb994d1 | 5444 | |
9b8eb840 | 5445 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5446 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5447 | (Fcons (Fcons (bar_window, |
3c370943 | 5448 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5449 | Fcons (Fcons (x, y), |
5450 | Fcons (make_number (time), | |
cb5df6ae | 5451 | Fcons (part_sym, |
4bb994d1 JB |
5452 | Qnil))))), |
5453 | Qnil))); | |
5454 | } | |
5455 | ||
5456 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5457 | else |
5458 | { | |
4bb994d1 | 5459 | int area; |
9e20143a | 5460 | Lisp_Object window; |
4bb994d1 | 5461 | Lisp_Object posn; |
9e20143a | 5462 | |
9e20143a | 5463 | if (frame) |
7ee32cda GM |
5464 | /* It's in a frame; which window on that frame? */ |
5465 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
5466 | else |
5467 | window = Qnil; | |
4bb994d1 | 5468 | |
8c18cbfb | 5469 | if (WINDOWP (window)) |
4bb994d1 | 5470 | { |
7ee32cda | 5471 | struct window *w = XWINDOW (window); |
7ee32cda | 5472 | int wx, wy; |
7ee32cda GM |
5473 | |
5474 | /* Get window relative coordinates. */ | |
5475 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
5476 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
5477 | XSETINT (x, wx); | |
5478 | XSETINT (y, wy); | |
5479 | ||
4bb994d1 JB |
5480 | if (area == 1) |
5481 | posn = Qmode_line; | |
5482 | else if (area == 2) | |
5483 | posn = Qvertical_line; | |
7ee32cda | 5484 | else if (area == 3) |
045dee35 | 5485 | posn = Qheader_line; |
4bb994d1 | 5486 | else |
a955ffa2 GM |
5487 | { |
5488 | Lisp_Object object; | |
5489 | struct display_pos p; | |
5490 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5491 | posn = make_number (CHARPOS (p.pos)); | |
5492 | } | |
4bb994d1 | 5493 | } |
e9bf89a0 RS |
5494 | else if (frame != 0) |
5495 | { | |
18cd2eeb | 5496 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5497 | posn = Qnil; |
5498 | } | |
284f4730 | 5499 | else |
4bb994d1 JB |
5500 | { |
5501 | window = Qnil; | |
5502 | posn = Qnil; | |
bb9e9bed KH |
5503 | XSETFASTINT (x, 0); |
5504 | XSETFASTINT (y, 0); | |
4bb994d1 | 5505 | } |
284f4730 | 5506 | |
4bb994d1 JB |
5507 | return Fcons (Qmouse_movement, |
5508 | Fcons (Fcons (window, | |
5509 | Fcons (posn, | |
5510 | Fcons (Fcons (x, y), | |
5511 | Fcons (make_number (time), | |
5512 | Qnil)))), | |
5513 | Qnil)); | |
5514 | } | |
284f4730 JB |
5515 | } |
5516 | ||
514354e9 | 5517 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5518 | |
cd21b839 JB |
5519 | /* Construct a switch frame event. */ |
5520 | static Lisp_Object | |
5521 | make_lispy_switch_frame (frame) | |
5522 | Lisp_Object frame; | |
5523 | { | |
5524 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5525 | } | |
0a7f1fc0 JB |
5526 | \f |
5527 | /* Manipulating modifiers. */ | |
284f4730 | 5528 | |
0a7f1fc0 | 5529 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5530 | |
0a7f1fc0 JB |
5531 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5532 | SYMBOL's name of the end of the modifiers; the string from this | |
5533 | position is the unmodified symbol name. | |
284f4730 | 5534 | |
0a7f1fc0 | 5535 | This doesn't use any caches. */ |
6da3dd3a | 5536 | |
0a7f1fc0 JB |
5537 | static int |
5538 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5539 | Lisp_Object symbol; |
0a7f1fc0 | 5540 | int *modifier_end; |
284f4730 JB |
5541 | { |
5542 | struct Lisp_String *name; | |
5543 | int i; | |
5544 | int modifiers; | |
284f4730 | 5545 | |
b7826503 | 5546 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5547 | |
284f4730 JB |
5548 | modifiers = 0; |
5549 | name = XSYMBOL (symbol)->name; | |
5550 | ||
fc932ac6 | 5551 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
5552 | { |
5553 | int this_mod_end = 0; | |
5554 | int this_mod = 0; | |
284f4730 | 5555 | |
6da3dd3a RS |
5556 | /* See if the name continues with a modifier word. |
5557 | Check that the word appears, but don't check what follows it. | |
5558 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5559 | |
6da3dd3a RS |
5560 | switch (name->data[i]) |
5561 | { | |
5562 | #define SINGLE_LETTER_MOD(BIT) \ | |
5563 | (this_mod_end = i + 1, this_mod = BIT) | |
5564 | ||
6da3dd3a RS |
5565 | case 'A': |
5566 | SINGLE_LETTER_MOD (alt_modifier); | |
5567 | break; | |
284f4730 | 5568 | |
6da3dd3a RS |
5569 | case 'C': |
5570 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5571 | break; | |
284f4730 | 5572 | |
6da3dd3a RS |
5573 | case 'H': |
5574 | SINGLE_LETTER_MOD (hyper_modifier); | |
5575 | break; | |
5576 | ||
6da3dd3a RS |
5577 | case 'M': |
5578 | SINGLE_LETTER_MOD (meta_modifier); | |
5579 | break; | |
5580 | ||
6da3dd3a RS |
5581 | case 'S': |
5582 | SINGLE_LETTER_MOD (shift_modifier); | |
5583 | break; | |
5584 | ||
5585 | case 's': | |
6da3dd3a RS |
5586 | SINGLE_LETTER_MOD (super_modifier); |
5587 | break; | |
5588 | ||
0a7f1fc0 | 5589 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
5590 | } |
5591 | ||
5592 | /* If we found no modifier, stop looking for them. */ | |
5593 | if (this_mod_end == 0) | |
5594 | break; | |
5595 | ||
5596 | /* Check there is a dash after the modifier, so that it | |
5597 | really is a modifier. */ | |
fc932ac6 RS |
5598 | if (this_mod_end >= STRING_BYTES (name) |
5599 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
5600 | break; |
5601 | ||
5602 | /* This modifier is real; look for another. */ | |
5603 | modifiers |= this_mod; | |
5604 | i = this_mod_end + 1; | |
5605 | } | |
284f4730 | 5606 | |
0a7f1fc0 | 5607 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5608 | if (! (modifiers & (down_modifier | drag_modifier |
5609 | | double_modifier | triple_modifier)) | |
fc932ac6 | 5610 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 5611 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 5612 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
5613 | modifiers |= click_modifier; |
5614 | ||
5615 | if (modifier_end) | |
5616 | *modifier_end = i; | |
5617 | ||
5618 | return modifiers; | |
5619 | } | |
5620 | ||
0a7f1fc0 JB |
5621 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5622 | prepended to the string BASE[0..BASE_LEN-1]. | |
5623 | This doesn't use any caches. */ | |
5624 | static Lisp_Object | |
301738ed | 5625 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5626 | int modifiers; |
5627 | char *base; | |
301738ed | 5628 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5629 | { |
5630 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5631 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5632 | reference to it. */ | |
301738ed RS |
5633 | char *new_mods |
5634 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5635 | int mod_len; |
284f4730 | 5636 | |
284f4730 | 5637 | { |
0a7f1fc0 JB |
5638 | char *p = new_mods; |
5639 | ||
5640 | /* Only the event queue may use the `up' modifier; it should always | |
5641 | be turned into a click or drag event before presented to lisp code. */ | |
5642 | if (modifiers & up_modifier) | |
5643 | abort (); | |
5644 | ||
5645 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5646 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5647 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5648 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5649 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5650 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5651 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5652 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5653 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5654 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5655 | /* The click modifier is denoted by the absence of other modifiers. */ |
5656 | ||
5657 | *p = '\0'; | |
5658 | ||
5659 | mod_len = p - new_mods; | |
5660 | } | |
284f4730 | 5661 | |
0a7f1fc0 | 5662 | { |
9b8eb840 | 5663 | Lisp_Object new_name; |
df0f2ba1 | 5664 | |
301738ed RS |
5665 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5666 | mod_len + base_len_byte); | |
0a7f1fc0 | 5667 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 5668 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
5669 | |
5670 | return Fintern (new_name, Qnil); | |
5671 | } | |
5672 | } | |
5673 | ||
5674 | ||
0a7f1fc0 JB |
5675 | static char *modifier_names[] = |
5676 | { | |
fbcd35bd | 5677 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5678 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5679 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5680 | }; |
80645119 | 5681 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5682 | |
5683 | static Lisp_Object modifier_symbols; | |
5684 | ||
5685 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5686 | static Lisp_Object | |
5687 | lispy_modifier_list (modifiers) | |
5688 | int modifiers; | |
5689 | { | |
5690 | Lisp_Object modifier_list; | |
5691 | int i; | |
5692 | ||
5693 | modifier_list = Qnil; | |
80645119 | 5694 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5695 | if (modifiers & (1<<i)) |
80645119 JB |
5696 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5697 | modifier_list); | |
0a7f1fc0 JB |
5698 | |
5699 | return modifier_list; | |
5700 | } | |
5701 | ||
5702 | ||
5703 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5704 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5705 | MASK is the set of modifiers present in SYMBOL's name. | |
5706 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5707 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5708 | Qevent_symbol_elements property. */ | |
3d31316f | 5709 | |
1161d367 | 5710 | Lisp_Object |
0a7f1fc0 JB |
5711 | parse_modifiers (symbol) |
5712 | Lisp_Object symbol; | |
5713 | { | |
9b8eb840 | 5714 | Lisp_Object elements; |
0a7f1fc0 | 5715 | |
9b8eb840 | 5716 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5717 | if (CONSP (elements)) |
5718 | return elements; | |
5719 | else | |
5720 | { | |
5721 | int end; | |
ec0faad2 | 5722 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5723 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5724 | Lisp_Object mask; |
5725 | ||
9b8eb840 | 5726 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5727 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5728 | Qnil); |
5729 | ||
c4aeb9d8 | 5730 | if (modifiers & ~VALMASK) |
734fef94 | 5731 | abort (); |
bb9e9bed | 5732 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5733 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5734 | ||
5735 | /* Cache the parsing results on SYMBOL. */ | |
5736 | Fput (symbol, Qevent_symbol_element_mask, | |
5737 | elements); | |
5738 | Fput (symbol, Qevent_symbol_elements, | |
5739 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5740 | ||
5741 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5742 | it would be nice to put that in unmodified's cache. | |
5743 | But we can't, since we're not sure that parse_modifiers is | |
5744 | canonical. */ | |
5745 | ||
5746 | return elements; | |
5747 | } | |
5748 | } | |
5749 | ||
5750 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5751 | BASE must be unmodified. | |
5752 | ||
5753 | This is like apply_modifiers_uncached, but uses BASE's | |
5754 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5755 | Qevent_symbol_elements properties, since it has that info anyway. |
5756 | ||
5757 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5758 | the modified symbol. */ | |
0a7f1fc0 JB |
5759 | static Lisp_Object |
5760 | apply_modifiers (modifiers, base) | |
5761 | int modifiers; | |
5762 | Lisp_Object base; | |
5763 | { | |
7b4aedb9 | 5764 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5765 | |
80645119 | 5766 | /* Mask out upper bits. We don't know where this value's been. */ |
c4aeb9d8 | 5767 | modifiers &= VALMASK; |
80645119 | 5768 | |
0a7f1fc0 | 5769 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5770 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5771 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5772 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5773 | |
5774 | if (CONSP (entry)) | |
7539e11f | 5775 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5776 | else |
5777 | { | |
df0f2ba1 | 5778 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5779 | new_symbol = apply_modifiers_uncached (modifiers, |
5780 | XSYMBOL (base)->name->data, | |
301738ed | 5781 | XSYMBOL (base)->name->size, |
fc932ac6 | 5782 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5783 | |
5784 | /* Add the new symbol to the base's cache. */ | |
5785 | entry = Fcons (index, new_symbol); | |
5786 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5787 | ||
5788 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5789 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5790 | Fput (new_symbol, Qevent_symbol_element_mask, |
5791 | Fcons (base, Fcons (index, Qnil))); | |
5792 | Fput (new_symbol, Qevent_symbol_elements, | |
5793 | Fcons (base, lispy_modifier_list (modifiers))); | |
5794 | } | |
0a7f1fc0 | 5795 | |
df0f2ba1 | 5796 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5797 | |
5798 | You'd think we could just set this once and for all when we | |
5799 | intern the symbol above, but reorder_modifiers may call us when | |
5800 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5801 | because it has a Qmodifier_cache property it must have its |
5802 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5803 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5804 | { | |
9b8eb840 | 5805 | Lisp_Object kind; |
7b4aedb9 | 5806 | |
9b8eb840 | 5807 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5808 | if (! NILP (kind)) |
5809 | Fput (new_symbol, Qevent_kind, kind); | |
5810 | } | |
5811 | ||
5812 | return new_symbol; | |
0a7f1fc0 JB |
5813 | } |
5814 | ||
5815 | ||
5816 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5817 | return a symbol with the modifiers placed in the canonical order. | |
5818 | Canonical order is alphabetical, except for down and drag, which | |
5819 | always come last. The 'click' modifier is never written out. | |
5820 | ||
5821 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5822 | and M-C-foo end up being equivalent in the keymap. */ | |
5823 | ||
5824 | Lisp_Object | |
5825 | reorder_modifiers (symbol) | |
5826 | Lisp_Object symbol; | |
5827 | { | |
5828 | /* It's hopefully okay to write the code this way, since everything | |
5829 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5830 | Lisp_Object parsed; |
0a7f1fc0 | 5831 | |
9b8eb840 | 5832 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5833 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5834 | XCAR (parsed)); | |
0a7f1fc0 JB |
5835 | } |
5836 | ||
5837 | ||
284f4730 JB |
5838 | /* For handling events, we often want to produce a symbol whose name |
5839 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5840 | to some base, like the name of a function key or mouse button. | |
5841 | modify_event_symbol produces symbols of this sort. | |
5842 | ||
5843 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5844 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5845 | in the table. | |
5846 | ||
8e1e4240 GM |
5847 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
5848 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 5849 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
5850 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
5851 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 5852 | |
284f4730 JB |
5853 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5854 | persist between calls to modify_event_symbol that it can use to | |
5855 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5856 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5857 | |
5858 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5859 | |
284f4730 JB |
5860 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5861 | whose prefixes should be applied to the symbol name. | |
5862 | ||
5863 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5864 | the returned symbol. |
88cb0656 JB |
5865 | |
5866 | The symbols we create are supposed to have an | |
eb8c3be9 | 5867 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5868 | in the symbol's name. */ |
5869 | ||
284f4730 | 5870 | static Lisp_Object |
8e1e4240 | 5871 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 5872 | name_table, symbol_table, table_size) |
284f4730 JB |
5873 | int symbol_num; |
5874 | unsigned modifiers; | |
5875 | Lisp_Object symbol_kind; | |
8e1e4240 | 5876 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
5877 | char **name_table; |
5878 | Lisp_Object *symbol_table; | |
2c834fb3 | 5879 | unsigned int table_size; |
284f4730 | 5880 | { |
80e4aa30 RS |
5881 | Lisp_Object value; |
5882 | Lisp_Object symbol_int; | |
5883 | ||
2c834fb3 KH |
5884 | /* Get rid of the "vendor-specific" bit here. */ |
5885 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5886 | |
5887 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5888 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5889 | return Qnil; |
284f4730 | 5890 | |
80e4aa30 RS |
5891 | if (CONSP (*symbol_table)) |
5892 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5893 | ||
0a7f1fc0 | 5894 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5895 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5896 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5897 | we've never used that symbol before. */ | |
80e4aa30 | 5898 | else |
88cb0656 | 5899 | { |
80e4aa30 RS |
5900 | if (! VECTORP (*symbol_table) |
5901 | || XVECTOR (*symbol_table)->size != table_size) | |
5902 | { | |
5903 | Lisp_Object size; | |
0a7f1fc0 | 5904 | |
bb9e9bed | 5905 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5906 | *symbol_table = Fmake_vector (size, Qnil); |
5907 | } | |
284f4730 | 5908 | |
80e4aa30 RS |
5909 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5910 | } | |
284f4730 | 5911 | |
0a7f1fc0 | 5912 | /* Have we already used this symbol before? */ |
80e4aa30 | 5913 | if (NILP (value)) |
284f4730 | 5914 | { |
0a7f1fc0 | 5915 | /* No; let's create it. */ |
8e1e4240 GM |
5916 | if (CONSP (name_alist_or_stem)) |
5917 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
5918 | else if (STRINGP (name_alist_or_stem)) | |
5919 | { | |
5920 | int len = STRING_BYTES (XSTRING (name_alist_or_stem)); | |
5921 | char *buf = (char *) alloca (len + 50); | |
5922 | sprintf (buf, "%s-%d", XSTRING (name_alist_or_stem)->data, | |
5923 | XINT (symbol_int) + 1); | |
5924 | value = intern (buf); | |
5925 | } | |
2ff6714d | 5926 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5927 | value = intern (name_table[symbol_num]); |
b64b4075 | 5928 | |
e98a93eb | 5929 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5930 | if (NILP (value)) |
5931 | { | |
5932 | char *name = x_get_keysym_name (symbol_num); | |
5933 | if (name) | |
5934 | value = intern (name); | |
5935 | } | |
5936 | #endif | |
5937 | ||
b64b4075 | 5938 | if (NILP (value)) |
d1f50460 RS |
5939 | { |
5940 | char buf[20]; | |
5941 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5942 | value = intern (buf); |
d1f50460 | 5943 | } |
0a7f1fc0 | 5944 | |
80e4aa30 | 5945 | if (CONSP (*symbol_table)) |
4205cb08 | 5946 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5947 | else |
5948 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5949 | ||
df0f2ba1 | 5950 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5951 | builds the Qevent_symbol_elements property, which the user |
5952 | cares about. */ | |
80e4aa30 RS |
5953 | apply_modifiers (modifiers & click_modifier, value); |
5954 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5955 | } |
88cb0656 | 5956 | |
0a7f1fc0 | 5957 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5958 | return apply_modifiers (modifiers, value); |
284f4730 | 5959 | } |
6da3dd3a RS |
5960 | \f |
5961 | /* Convert a list that represents an event type, | |
5962 | such as (ctrl meta backspace), into the usual representation of that | |
5963 | event type as a number or a symbol. */ | |
5964 | ||
a1706c30 | 5965 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
5966 | doc: /* Convert the event description list EVENT-DESC to an event type. |
5967 | EVENT-DESC should contain one base event type (a character or symbol) | |
5968 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
5969 | drag, down, double or triple). The base must be last. | |
5970 | The return value is an event type (a character or symbol) which | |
5971 | has the same base event type and all the specified modifiers. */) | |
5972 | (event_desc) | |
e57d8fd8 | 5973 | Lisp_Object event_desc; |
6da3dd3a RS |
5974 | { |
5975 | Lisp_Object base; | |
5976 | int modifiers = 0; | |
5977 | Lisp_Object rest; | |
5978 | ||
5979 | base = Qnil; | |
e57d8fd8 | 5980 | rest = event_desc; |
6da3dd3a RS |
5981 | while (CONSP (rest)) |
5982 | { | |
5983 | Lisp_Object elt; | |
5984 | int this = 0; | |
5985 | ||
7539e11f KR |
5986 | elt = XCAR (rest); |
5987 | rest = XCDR (rest); | |
6da3dd3a | 5988 | |
3d31316f | 5989 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5990 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5991 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5992 | |
5993 | if (this != 0) | |
5994 | modifiers |= this; | |
5995 | else if (!NILP (base)) | |
5996 | error ("Two bases given in one event"); | |
5997 | else | |
5998 | base = elt; | |
5999 | ||
6da3dd3a RS |
6000 | } |
6001 | ||
3d31316f RS |
6002 | /* Let the symbol A refer to the character A. */ |
6003 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
6004 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
6005 | ||
6da3dd3a RS |
6006 | if (INTEGERP (base)) |
6007 | { | |
3d31316f RS |
6008 | /* Turn (shift a) into A. */ |
6009 | if ((modifiers & shift_modifier) != 0 | |
6010 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6011 | { | |
6012 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6013 | modifiers &= ~shift_modifier; | |
6014 | } | |
6015 | ||
6016 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6017 | if (modifiers & ctrl_modifier) |
3d31316f | 6018 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6019 | | make_ctrl_char (XINT (base))); |
6020 | else | |
6021 | return make_number (modifiers | XINT (base)); | |
6022 | } | |
6023 | else if (SYMBOLP (base)) | |
6024 | return apply_modifiers (modifiers, base); | |
6025 | else | |
8c907a56 GM |
6026 | { |
6027 | error ("Invalid base event"); | |
6028 | return Qnil; | |
6029 | } | |
6da3dd3a RS |
6030 | } |
6031 | ||
3d31316f RS |
6032 | /* Try to recognize SYMBOL as a modifier name. |
6033 | Return the modifier flag bit, or 0 if not recognized. */ | |
6034 | ||
6035 | static int | |
6036 | parse_solitary_modifier (symbol) | |
6037 | Lisp_Object symbol; | |
6038 | { | |
6039 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
6040 | ||
6041 | switch (name->data[0]) | |
6042 | { | |
6043 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 6044 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
6045 | return BIT; |
6046 | ||
6047 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 6048 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
6049 | && ! strncmp (name->data, NAME, LEN)) \ |
6050 | return BIT; | |
6051 | ||
6052 | case 'A': | |
6053 | SINGLE_LETTER_MOD (alt_modifier); | |
6054 | break; | |
6055 | ||
6056 | case 'a': | |
6057 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6058 | break; | |
6059 | ||
6060 | case 'C': | |
6061 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6062 | break; | |
6063 | ||
6064 | case 'c': | |
6065 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6066 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6067 | break; | |
6068 | ||
6069 | case 'H': | |
6070 | SINGLE_LETTER_MOD (hyper_modifier); | |
6071 | break; | |
6072 | ||
6073 | case 'h': | |
6074 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6075 | break; | |
6076 | ||
6077 | case 'M': | |
6078 | SINGLE_LETTER_MOD (meta_modifier); | |
6079 | break; | |
6080 | ||
6081 | case 'm': | |
6082 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6083 | break; | |
6084 | ||
6085 | case 'S': | |
6086 | SINGLE_LETTER_MOD (shift_modifier); | |
6087 | break; | |
6088 | ||
6089 | case 's': | |
6090 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6091 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6092 | SINGLE_LETTER_MOD (super_modifier); | |
6093 | break; | |
6094 | ||
6095 | case 'd': | |
6096 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6097 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6098 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6099 | break; | |
6100 | ||
6101 | case 't': | |
6102 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6103 | break; | |
6104 | ||
6105 | #undef SINGLE_LETTER_MOD | |
6106 | #undef MULTI_LETTER_MOD | |
6107 | } | |
6108 | ||
6109 | return 0; | |
6110 | } | |
6111 | ||
6da3dd3a RS |
6112 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6113 | Such a list is not valid as an event, | |
6114 | but it can be a Lucid-style event type list. */ | |
6115 | ||
6116 | int | |
6117 | lucid_event_type_list_p (object) | |
6118 | Lisp_Object object; | |
6119 | { | |
6120 | Lisp_Object tail; | |
6121 | ||
6122 | if (! CONSP (object)) | |
6123 | return 0; | |
902ae620 GM |
6124 | |
6125 | if (EQ (XCAR (object), Qhelp_echo) | |
6126 | || EQ (XCAR (object), Qvertical_line) | |
6127 | || EQ (XCAR (object), Qmode_line) | |
6128 | || EQ (XCAR (object), Qheader_line)) | |
6129 | return 0; | |
6da3dd3a | 6130 | |
7539e11f | 6131 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6132 | { |
6133 | Lisp_Object elt; | |
7539e11f | 6134 | elt = XCAR (tail); |
6da3dd3a RS |
6135 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6136 | return 0; | |
6137 | } | |
6138 | ||
6139 | return NILP (tail); | |
6140 | } | |
284f4730 | 6141 | \f |
284f4730 JB |
6142 | /* Store into *addr a value nonzero if terminal input chars are available. |
6143 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6144 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6145 | (In fact, this may actually read some input.) |
6146 | ||
6147 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
6148 | |
6149 | static void | |
d9d4c147 | 6150 | get_input_pending (addr, do_timers_now) |
284f4730 | 6151 | int *addr; |
d9d4c147 | 6152 | int do_timers_now; |
284f4730 JB |
6153 | { |
6154 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 6155 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
6156 | |
6157 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6158 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6159 | return; | |
6160 | ||
6161 | /* Try to read some input and see how much we get. */ | |
6162 | gobble_input (0); | |
d9d4c147 | 6163 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
6164 | } |
6165 | ||
81931ba1 | 6166 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6167 | |
07a59269 | 6168 | void |
284f4730 JB |
6169 | gobble_input (expected) |
6170 | int expected; | |
6171 | { | |
6172 | #ifndef VMS | |
6173 | #ifdef SIGIO | |
6174 | if (interrupt_input) | |
6175 | { | |
32676c08 | 6176 | SIGMASKTYPE mask; |
4f8aaa74 | 6177 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6178 | read_avail_input (expected); |
e065a56e | 6179 | sigsetmask (mask); |
284f4730 JB |
6180 | } |
6181 | else | |
81931ba1 RS |
6182 | #ifdef POLL_FOR_INPUT |
6183 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6184 | { | |
6185 | SIGMASKTYPE mask; | |
4f8aaa74 | 6186 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6187 | read_avail_input (expected); |
6188 | sigsetmask (mask); | |
6189 | } | |
6190 | else | |
87485d6f | 6191 | #endif |
284f4730 JB |
6192 | #endif |
6193 | read_avail_input (expected); | |
6194 | #endif | |
6195 | } | |
a8015ab5 | 6196 | |
241ceaf7 RS |
6197 | /* Put a buffer_switch_event in the buffer |
6198 | so that read_key_sequence will notice the new current buffer. */ | |
6199 | ||
07a59269 | 6200 | void |
a8015ab5 KH |
6201 | record_asynch_buffer_change () |
6202 | { | |
6203 | struct input_event event; | |
a30f0615 RS |
6204 | Lisp_Object tem; |
6205 | ||
a8015ab5 KH |
6206 | event.kind = buffer_switch_event; |
6207 | event.frame_or_window = Qnil; | |
da8f7368 | 6208 | event.arg = Qnil; |
241ceaf7 | 6209 | |
f65e6f7d | 6210 | #ifdef subprocesses |
a30f0615 RS |
6211 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6212 | The purpose of the event is to make read_key_sequence look up the | |
6213 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6214 | and the event could cause trouble by messing up (input-pending-p). */ | |
6215 | tem = Fwaiting_for_user_input_p (); | |
6216 | if (NILP (tem)) | |
6217 | return; | |
f65e6f7d RS |
6218 | #else |
6219 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6220 | return; | |
6221 | #endif | |
a30f0615 | 6222 | |
241ceaf7 RS |
6223 | /* Make sure no interrupt happens while storing the event. */ |
6224 | #ifdef SIGIO | |
6225 | if (interrupt_input) | |
6226 | { | |
6227 | SIGMASKTYPE mask; | |
4f8aaa74 | 6228 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6229 | kbd_buffer_store_event (&event); |
6230 | sigsetmask (mask); | |
6231 | } | |
6232 | else | |
6233 | #endif | |
6234 | { | |
6235 | stop_polling (); | |
6236 | kbd_buffer_store_event (&event); | |
6237 | start_polling (); | |
6238 | } | |
a8015ab5 | 6239 | } |
284f4730 JB |
6240 | \f |
6241 | #ifndef VMS | |
6242 | ||
6243 | /* Read any terminal input already buffered up by the system | |
6244 | into the kbd_buffer, but do not wait. | |
6245 | ||
6246 | EXPECTED should be nonzero if the caller knows there is some input. | |
6247 | ||
6248 | Except on VMS, all input is read by this function. | |
6249 | If interrupt_input is nonzero, this function MUST be called | |
6250 | only when SIGIO is blocked. | |
6251 | ||
6252 | Returns the number of keyboard chars read, or -1 meaning | |
6253 | this is a bad time to try to read input. */ | |
6254 | ||
6255 | static int | |
6256 | read_avail_input (expected) | |
6257 | int expected; | |
6258 | { | |
6259 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6260 | register int i; | |
6261 | int nread; | |
6262 | ||
6263 | if (read_socket_hook) | |
6264 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6265 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6266 | else |
6267 | { | |
17270835 RS |
6268 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6269 | the kbd_buffer can really hold. That may prevent loss | |
6270 | of characters on some systems when input is stuffed at us. */ | |
6271 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6272 | int n_to_read; |
284f4730 | 6273 | |
58788063 | 6274 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6275 | #ifdef WINDOWSNT |
6276 | return 0; | |
6277 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6278 | #ifdef MSDOS |
58788063 RS |
6279 | n_to_read = dos_keysns (); |
6280 | if (n_to_read == 0) | |
6281 | return 0; | |
c3a2738c | 6282 | #else /* not MSDOS */ |
284f4730 JB |
6283 | #ifdef FIONREAD |
6284 | /* Find out how much input is available. */ | |
437f6112 | 6285 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6286 | /* Formerly simply reported no input, but that sometimes led to |
6287 | a failure of Emacs to terminate. | |
6288 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6289 | /* ??? Is it really right to send the signal just to this process |
6290 | rather than to the whole process group? | |
6291 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 6292 | kill (getpid (), SIGHUP); |
58788063 | 6293 | if (n_to_read == 0) |
284f4730 | 6294 | return 0; |
58788063 RS |
6295 | if (n_to_read > sizeof cbuf) |
6296 | n_to_read = sizeof cbuf; | |
284f4730 | 6297 | #else /* no FIONREAD */ |
0c04a67e | 6298 | #if defined (USG) || defined (DGUX) |
284f4730 | 6299 | /* Read some input if available, but don't wait. */ |
58788063 | 6300 | n_to_read = sizeof cbuf; |
437f6112 | 6301 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6302 | #else |
6303 | you lose; | |
6304 | #endif | |
6305 | #endif | |
80e4aa30 | 6306 | #endif /* not MSDOS */ |
bc536d84 | 6307 | #endif /* not WINDOWSNT */ |
284f4730 | 6308 | |
58788063 RS |
6309 | /* Now read; for one reason or another, this will not block. |
6310 | NREAD is set to the number of chars read. */ | |
9134775b | 6311 | do |
284f4730 | 6312 | { |
80e4aa30 | 6313 | #ifdef MSDOS |
0c04a67e | 6314 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6315 | nread = 1; |
6316 | #else | |
68c45bf0 | 6317 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6318 | #endif |
49854566 RS |
6319 | /* POSIX infers that processes which are not in the session leader's |
6320 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6321 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6322 | when the control tty is taken away. |
6323 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6324 | if (nread == -1 && errno == EIO) | |
6325 | kill (0, SIGHUP); | |
762f2b92 | 6326 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6327 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6328 | This looks incorrect, but it isn't, because _BSD causes | |
6329 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6330 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6331 | if (nread == 0) |
80e4aa30 | 6332 | kill (0, SIGHUP); |
284f4730 | 6333 | #endif |
9134775b | 6334 | } |
791587ee KH |
6335 | while ( |
6336 | /* We used to retry the read if it was interrupted. | |
6337 | But this does the wrong thing when O_NDELAY causes | |
6338 | an EAGAIN error. Does anybody know of a situation | |
6339 | where a retry is actually needed? */ | |
6340 | #if 0 | |
6341 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6342 | #ifdef EFAULT |
9134775b | 6343 | || errno == EFAULT |
80e4aa30 | 6344 | #endif |
284f4730 | 6345 | #ifdef EBADSLT |
9134775b | 6346 | || errno == EBADSLT |
284f4730 | 6347 | #endif |
791587ee KH |
6348 | ) |
6349 | #else | |
6350 | 0 | |
6351 | #endif | |
6352 | ); | |
284f4730 JB |
6353 | |
6354 | #ifndef FIONREAD | |
02c2c53f | 6355 | #if defined (USG) || defined (DGUX) |
437f6112 | 6356 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 6357 | #endif /* USG or DGUX */ |
284f4730 JB |
6358 | #endif /* no FIONREAD */ |
6359 | for (i = 0; i < nread; i++) | |
6360 | { | |
6361 | buf[i].kind = ascii_keystroke; | |
86e5706b | 6362 | buf[i].modifiers = 0; |
b04904fb | 6363 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6364 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6365 | if (meta_key != 2) |
6366 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6367 | |
6368 | buf[i].code = cbuf[i]; | |
788f89eb | 6369 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6370 | buf[i].arg = Qnil; |
284f4730 JB |
6371 | } |
6372 | } | |
6373 | ||
6374 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6375 | for (i = 0; i < nread; i++) | |
6376 | { | |
6377 | kbd_buffer_store_event (&buf[i]); | |
6378 | /* Don't look at input that follows a C-g too closely. | |
6379 | This reduces lossage due to autorepeat on C-g. */ | |
6380 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 6381 | && buf[i].code == quit_char) |
284f4730 JB |
6382 | break; |
6383 | } | |
6384 | ||
6385 | return nread; | |
6386 | } | |
6387 | #endif /* not VMS */ | |
6388 | \f | |
6389 | #ifdef SIGIO /* for entire page */ | |
6390 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6391 | ||
2ce30ea2 | 6392 | SIGTYPE |
284f4730 JB |
6393 | input_available_signal (signo) |
6394 | int signo; | |
6395 | { | |
6396 | /* Must preserve main program's value of errno. */ | |
6397 | int old_errno = errno; | |
6398 | #ifdef BSD4_1 | |
6399 | extern int select_alarmed; | |
6400 | #endif | |
6401 | ||
5970a8cb | 6402 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6403 | /* USG systems forget handlers when they are used; |
6404 | must reestablish each time */ | |
6405 | signal (signo, input_available_signal); | |
6406 | #endif /* USG */ | |
6407 | ||
6408 | #ifdef BSD4_1 | |
6409 | sigisheld (SIGIO); | |
6410 | #endif | |
6411 | ||
ffd56f97 JB |
6412 | if (input_available_clear_time) |
6413 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6414 | |
6415 | while (1) | |
6416 | { | |
6417 | int nread; | |
6418 | nread = read_avail_input (1); | |
6419 | /* -1 means it's not ok to read the input now. | |
6420 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6421 | 0 means there was no keyboard input available. */ | |
6422 | if (nread <= 0) | |
6423 | break; | |
6424 | ||
6425 | #ifdef BSD4_1 | |
6426 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6427 | #endif | |
6428 | } | |
6429 | ||
6430 | #ifdef BSD4_1 | |
6431 | sigfree (); | |
6432 | #endif | |
6433 | errno = old_errno; | |
6434 | } | |
6435 | #endif /* SIGIO */ | |
ad163903 JB |
6436 | |
6437 | /* Send ourselves a SIGIO. | |
6438 | ||
6439 | This function exists so that the UNBLOCK_INPUT macro in | |
6440 | blockinput.h can have some way to take care of input we put off | |
6441 | dealing with, without assuming that every file which uses | |
6442 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6443 | void | |
6444 | reinvoke_input_signal () | |
6445 | { | |
df0f2ba1 | 6446 | #ifdef SIGIO |
87dd9b9b | 6447 | kill (getpid (), SIGIO); |
ad163903 JB |
6448 | #endif |
6449 | } | |
6450 | ||
6451 | ||
284f4730 | 6452 | \f |
25126faa GM |
6453 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object)); |
6454 | static void menu_bar_one_keymap P_ ((Lisp_Object)); | |
b7c49376 RS |
6455 | |
6456 | /* These variables hold the vector under construction within | |
6457 | menu_bar_items and its subroutines, and the current index | |
6458 | for storing into that vector. */ | |
6459 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6460 | static int menu_bar_items_index; |
5ec75a55 | 6461 | |
b7c49376 RS |
6462 | /* Return a vector of menu items for a menu bar, appropriate |
6463 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6464 | KEY STRING MAPLIST. |
b7c49376 RS |
6465 | |
6466 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6467 | |
6468 | Lisp_Object | |
b7c49376 RS |
6469 | menu_bar_items (old) |
6470 | Lisp_Object old; | |
5ec75a55 RS |
6471 | { |
6472 | /* The number of keymaps we're scanning right now, and the number of | |
6473 | keymaps we have allocated space for. */ | |
6474 | int nmaps; | |
6475 | ||
6476 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6477 | in the current keymaps, or nil where it is not a prefix. */ | |
6478 | Lisp_Object *maps; | |
6479 | ||
aebfea68 | 6480 | Lisp_Object def, tail; |
5ec75a55 RS |
6481 | |
6482 | Lisp_Object result; | |
6483 | ||
6484 | int mapno; | |
47d319aa | 6485 | Lisp_Object oquit; |
5ec75a55 | 6486 | |
b7c49376 RS |
6487 | int i; |
6488 | ||
6489 | struct gcpro gcpro1; | |
6490 | ||
db60d856 JB |
6491 | /* In order to build the menus, we need to call the keymap |
6492 | accessors. They all call QUIT. But this function is called | |
6493 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6494 | quitting while building the menus. |
6495 | We do this instead of specbind because (1) errors will clear it anyway | |
6496 | and (2) this avoids risk of specpdl overflow. */ | |
6497 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6498 | Vinhibit_quit = Qt; |
db60d856 | 6499 | |
b7c49376 RS |
6500 | if (!NILP (old)) |
6501 | menu_bar_items_vector = old; | |
6502 | else | |
6503 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6504 | menu_bar_items_index = 0; | |
6505 | ||
6506 | GCPRO1 (menu_bar_items_vector); | |
6507 | ||
5ec75a55 RS |
6508 | /* Build our list of keymaps. |
6509 | If we recognize a function key and replace its escape sequence in | |
6510 | keybuf with its symbol, or if the sequence starts with a mouse | |
6511 | click and we need to switch buffers, we jump back here to rebuild | |
6512 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6513 | { |
5ec75a55 RS |
6514 | Lisp_Object *tmaps; |
6515 | ||
217258d5 | 6516 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6517 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6518 | { |
217258d5 KH |
6519 | /* Yes, use them (if non-nil) as well as the global map. */ |
6520 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6521 | nmaps = 0; | |
6522 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6523 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6524 | if (!NILP (Voverriding_local_map)) | |
6525 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6526 | } |
6527 | else | |
6528 | { | |
fd646341 KS |
6529 | /* No, so use major and minor mode keymaps and keymap property. |
6530 | Note that menu-bar bindings in the local-map and keymap | |
6531 | properties may not work reliable, as they are only | |
6532 | recognized when the menu-bar (or mode-line) is updated, | |
6533 | which does not normally happen after every command. */ | |
6534 | Lisp_Object tem; | |
6535 | int nminor; | |
6536 | nminor = current_minor_maps (NULL, &tmaps); | |
6537 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6538 | nmaps = 0; | |
6539 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6540 | maps[nmaps++] = tem; | |
6541 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6542 | nmaps += nminor; | |
6543 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6544 | } |
217258d5 | 6545 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6546 | } |
6547 | ||
6548 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6549 | ||
6550 | result = Qnil; | |
6551 | ||
e58aa385 | 6552 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6553 | if (!NILP (maps[mapno])) |
6554 | { | |
341a09cf SM |
6555 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6556 | 0, 1); | |
02067692 | 6557 | if (CONSP (def)) |
25126faa GM |
6558 | menu_bar_one_keymap (def); |
6559 | } | |
5ec75a55 | 6560 | |
b7c49376 RS |
6561 | /* Move to the end those items that should be at the end. */ |
6562 | ||
7539e11f | 6563 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6564 | { |
b7c49376 RS |
6565 | int i; |
6566 | int end = menu_bar_items_index; | |
6567 | ||
35b3402f | 6568 | for (i = 0; i < end; i += 4) |
7539e11f | 6569 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6570 | { |
35b3402f | 6571 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6572 | /* Move the item at index I to the end, |
6573 | shifting all the others forward. */ | |
6574 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6575 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6576 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6577 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6578 | if (end > i + 4) | |
6579 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6580 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6581 | (end - i - 4) * sizeof (Lisp_Object)); |
6582 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6583 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6584 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6585 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6586 | break; |
b7c49376 RS |
6587 | } |
6588 | } | |
9f9c0e27 | 6589 | |
0c9071cd | 6590 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6591 | i = menu_bar_items_index; |
35b3402f | 6592 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6593 | { |
6594 | Lisp_Object tem; | |
b7c49376 RS |
6595 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6596 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6597 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6598 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6599 | } |
b7c49376 RS |
6600 | /* Add this item. */ |
6601 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6602 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6603 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6604 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6605 | menu_bar_items_index = i; |
a73c5e29 | 6606 | |
47d319aa | 6607 | Vinhibit_quit = oquit; |
b7c49376 RS |
6608 | UNGCPRO; |
6609 | return menu_bar_items_vector; | |
5ec75a55 RS |
6610 | } |
6611 | \f | |
6612 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 6613 | in menu_bar_items_vector. */ |
5ec75a55 | 6614 | |
759860a6 RS |
6615 | static Lisp_Object menu_bar_one_keymap_changed_items; |
6616 | ||
b7c49376 RS |
6617 | static void |
6618 | menu_bar_one_keymap (keymap) | |
6619 | Lisp_Object keymap; | |
5ec75a55 | 6620 | { |
03cee6ae | 6621 | Lisp_Object tail, item; |
5ec75a55 | 6622 | |
759860a6 RS |
6623 | menu_bar_one_keymap_changed_items = Qnil; |
6624 | ||
5ec75a55 | 6625 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 6626 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 6627 | { |
7539e11f | 6628 | item = XCAR (tail); |
8c18cbfb | 6629 | if (CONSP (item)) |
7539e11f | 6630 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 6631 | else if (VECTORP (item)) |
5ec75a55 RS |
6632 | { |
6633 | /* Loop over the char values represented in the vector. */ | |
6634 | int len = XVECTOR (item)->size; | |
6635 | int c; | |
6636 | for (c = 0; c < len; c++) | |
6637 | { | |
6638 | Lisp_Object character; | |
bb9e9bed | 6639 | XSETFASTINT (character, c); |
e8886a1d | 6640 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
6641 | } |
6642 | } | |
6643 | } | |
5ec75a55 RS |
6644 | } |
6645 | ||
f5e09c8b RS |
6646 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6647 | If there's already an item for KEY, add this DEF to it. */ | |
6648 | ||
e8886a1d RS |
6649 | Lisp_Object item_properties; |
6650 | ||
b7c49376 | 6651 | static void |
e8886a1d RS |
6652 | menu_bar_item (key, item) |
6653 | Lisp_Object key, item; | |
5ec75a55 | 6654 | { |
e8886a1d | 6655 | struct gcpro gcpro1; |
b7c49376 | 6656 | int i; |
759860a6 | 6657 | Lisp_Object tem; |
5ec75a55 | 6658 | |
e8886a1d | 6659 | if (EQ (item, Qundefined)) |
e58aa385 | 6660 | { |
f5e09c8b | 6661 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6662 | discard any previously made menu bar item. */ |
b7c49376 | 6663 | |
35b3402f | 6664 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6665 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6666 | { | |
35b3402f RS |
6667 | if (menu_bar_items_index > i + 4) |
6668 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6669 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6670 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6671 | menu_bar_items_index -= 4; | |
b7c49376 | 6672 | } |
e58aa385 RS |
6673 | } |
6674 | ||
759860a6 RS |
6675 | /* If this keymap has already contributed to this KEY, |
6676 | don't contribute to it a second time. */ | |
6677 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6678 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6679 | return; |
6680 | ||
6681 | menu_bar_one_keymap_changed_items | |
6682 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6683 | ||
9cd2ced7 SM |
6684 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6685 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6686 | it still correctly hides any further menu item. */ | |
6687 | GCPRO1 (key); | |
6688 | i = parse_menu_item (item, 0, 1); | |
6689 | UNGCPRO; | |
6690 | if (!i) | |
6691 | return; | |
6692 | ||
e8886a1d RS |
6693 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6694 | ||
f5e09c8b | 6695 | /* Find any existing item for this KEY. */ |
35b3402f | 6696 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6697 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6698 | break; | |
6699 | ||
f5e09c8b | 6700 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6701 | if (i == menu_bar_items_index) |
6702 | { | |
6703 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6704 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6705 | { |
6706 | Lisp_Object tem; | |
b7c49376 RS |
6707 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6708 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6709 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6710 | menu_bar_items_vector = tem; | |
6711 | } | |
e8886a1d | 6712 | |
b7c49376 RS |
6713 | /* Add this item. */ |
6714 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6715 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6716 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6717 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6718 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6719 | menu_bar_items_index = i; |
6720 | } | |
e8886a1d | 6721 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6722 | else |
6723 | { | |
6724 | Lisp_Object old; | |
6725 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6726 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6727 | } |
5ec75a55 RS |
6728 | } |
6729 | \f | |
e8886a1d RS |
6730 | /* This is used as the handler when calling menu_item_eval_property. */ |
6731 | static Lisp_Object | |
6732 | menu_item_eval_property_1 (arg) | |
6733 | Lisp_Object arg; | |
6734 | { | |
6735 | /* If we got a quit from within the menu computation, | |
6736 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6737 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6738 | Fsignal (Qquit, Qnil); |
6739 | ||
6740 | return Qnil; | |
6741 | } | |
6742 | ||
6743 | /* Evaluate an expression and return the result (or nil if something | |
6744 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6745 | Lisp_Object |
e8886a1d RS |
6746 | menu_item_eval_property (sexpr) |
6747 | Lisp_Object sexpr; | |
6748 | { | |
44e553a3 | 6749 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6750 | Lisp_Object val; |
44e553a3 | 6751 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6752 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6753 | menu_item_eval_property_1); | |
44e553a3 | 6754 | return unbind_to (count, val); |
e8886a1d RS |
6755 | } |
6756 | ||
6757 | /* This function parses a menu item and leaves the result in the | |
6758 | vector item_properties. | |
6759 | ITEM is a key binding, a possible menu item. | |
6760 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6761 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6762 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6763 | top level. |
fd3613d7 | 6764 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6765 | parse_menu_item returns true if the item is a menu item and false |
6766 | otherwise. */ | |
6767 | ||
6768 | int | |
6769 | parse_menu_item (item, notreal, inmenubar) | |
6770 | Lisp_Object item; | |
6771 | int notreal, inmenubar; | |
6772 | { | |
adc1d5c8 | 6773 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6774 | Lisp_Object cachelist; |
6775 | Lisp_Object filter; | |
6776 | Lisp_Object keyhint; | |
e8886a1d | 6777 | int i; |
74c1de23 RS |
6778 | int newcache = 0; |
6779 | ||
07ba902e RS |
6780 | cachelist = Qnil; |
6781 | filter = Qnil; | |
6782 | keyhint = Qnil; | |
6783 | ||
e8886a1d RS |
6784 | if (!CONSP (item)) |
6785 | return 0; | |
6786 | ||
e8886a1d RS |
6787 | /* Create item_properties vector if necessary. */ |
6788 | if (NILP (item_properties)) | |
6789 | item_properties | |
6790 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6791 | ||
6792 | /* Initialize optional entries. */ | |
6793 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
6794 | AREF (item_properties, i) = Qnil; |
6795 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
e8886a1d RS |
6796 | |
6797 | /* Save the item here to protect it from GC. */ | |
3626fb1a | 6798 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 6799 | |
7539e11f | 6800 | item_string = XCAR (item); |
e8886a1d RS |
6801 | |
6802 | start = item; | |
7539e11f | 6803 | item = XCDR (item); |
e8886a1d RS |
6804 | if (STRINGP (item_string)) |
6805 | { | |
6806 | /* Old format menu item. */ | |
3626fb1a | 6807 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6808 | |
6809 | /* Maybe help string. */ | |
7539e11f | 6810 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 6811 | { |
3626fb1a | 6812 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6813 | start = item; |
7539e11f | 6814 | item = XCDR (item); |
e8886a1d RS |
6815 | } |
6816 | ||
31f84d03 | 6817 | /* Maybe key binding cache. */ |
7539e11f KR |
6818 | if (CONSP (item) && CONSP (XCAR (item)) |
6819 | && (NILP (XCAR (XCAR (item))) | |
6820 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6821 | { |
7539e11f KR |
6822 | cachelist = XCAR (item); |
6823 | item = XCDR (item); | |
e8886a1d RS |
6824 | } |
6825 | ||
6826 | /* This is the real definition--the function to run. */ | |
3626fb1a | 6827 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
6828 | |
6829 | /* Get enable property, if any. */ | |
6830 | if (SYMBOLP (item)) | |
6831 | { | |
6832 | tem = Fget (item, Qmenu_enable); | |
6833 | if (!NILP (tem)) | |
3626fb1a | 6834 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6835 | } |
6836 | } | |
6837 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6838 | { | |
6839 | /* New format menu item. */ | |
3626fb1a | 6840 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 6841 | start = XCDR (item); |
e8886a1d RS |
6842 | if (CONSP (start)) |
6843 | { | |
6844 | /* We have a real binding. */ | |
3626fb1a | 6845 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 6846 | |
7539e11f | 6847 | item = XCDR (start); |
e8886a1d | 6848 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6849 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6850 | { |
7539e11f KR |
6851 | cachelist = XCAR (item); |
6852 | item = XCDR (item); | |
e8886a1d RS |
6853 | } |
6854 | ||
6855 | /* Parse properties. */ | |
7539e11f | 6856 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6857 | { |
7539e11f KR |
6858 | tem = XCAR (item); |
6859 | item = XCDR (item); | |
e8886a1d RS |
6860 | |
6861 | if (EQ (tem, QCenable)) | |
3626fb1a | 6862 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
6863 | else if (EQ (tem, QCvisible) && !notreal) |
6864 | { | |
6865 | /* If got a visible property and that evaluates to nil | |
6866 | then ignore this item. */ | |
7539e11f | 6867 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6868 | if (NILP (tem)) |
adc1d5c8 | 6869 | return 0; |
e8886a1d RS |
6870 | } |
6871 | else if (EQ (tem, QChelp)) | |
3626fb1a | 6872 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6873 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6874 | filter = item; |
6875 | else if (EQ (tem, QCkey_sequence)) | |
6876 | { | |
7539e11f | 6877 | tem = XCAR (item); |
74c1de23 RS |
6878 | if (NILP (cachelist) |
6879 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6880 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6881 | keyhint = item; | |
6882 | } | |
6883 | else if (EQ (tem, QCkeys)) | |
6884 | { | |
7539e11f | 6885 | tem = XCAR (item); |
03cee6ae | 6886 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 6887 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 6888 | } |
7539e11f | 6889 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6890 | { |
74c1de23 | 6891 | Lisp_Object type; |
7539e11f KR |
6892 | tem = XCAR (item); |
6893 | type = XCAR (tem); | |
e8886a1d RS |
6894 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6895 | { | |
3626fb1a | 6896 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 6897 | = XCDR (tem); |
3626fb1a | 6898 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
6899 | = type; |
6900 | } | |
6901 | } | |
7539e11f | 6902 | item = XCDR (item); |
e8886a1d RS |
6903 | } |
6904 | } | |
6905 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6906 | return 0; |
e8886a1d RS |
6907 | } |
6908 | else | |
adc1d5c8 | 6909 | return 0; /* not a menu item */ |
e8886a1d RS |
6910 | |
6911 | /* If item string is not a string, evaluate it to get string. | |
6912 | If we don't get a string, skip this item. */ | |
3626fb1a | 6913 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
6914 | if (!(STRINGP (item_string) || notreal)) |
6915 | { | |
6916 | item_string = menu_item_eval_property (item_string); | |
6917 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6918 | return 0; |
3626fb1a | 6919 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6920 | } |
6921 | ||
6922 | /* If got a filter apply it on definition. */ | |
3626fb1a | 6923 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
6924 | if (!NILP (filter)) |
6925 | { | |
7539e11f | 6926 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6927 | list2 (Qquote, def))); |
6928 | ||
3626fb1a | 6929 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
6930 | } |
6931 | ||
e8886a1d | 6932 | /* Enable or disable selection of item. */ |
3626fb1a | 6933 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
6934 | if (!EQ (tem, Qt)) |
6935 | { | |
6936 | if (notreal) | |
6937 | tem = Qt; | |
6938 | else | |
6939 | tem = menu_item_eval_property (tem); | |
6940 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6941 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 6942 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6943 | } |
6944 | ||
7189cad8 SM |
6945 | /* If we got no definition, this item is just unselectable text which |
6946 | is OK in a submenu but not in the menubar. */ | |
6947 | if (NILP (def)) | |
6948 | return (inmenubar ? 0 : 1); | |
6949 | ||
e8886a1d | 6950 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 6951 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 6952 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 6953 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 6954 | if (CONSP (tem)) |
e8886a1d | 6955 | { |
3626fb1a GM |
6956 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
6957 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
6958 | return 1; |
6959 | } | |
3626fb1a | 6960 | |
9ac425d1 RS |
6961 | /* At the top level in the menu bar, do likewise for commands also. |
6962 | The menu bar does not display equivalent key bindings anyway. | |
6963 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6964 | if (inmenubar > 0) | |
6965 | return 1; | |
e8886a1d RS |
6966 | |
6967 | /* This is a command. See if there is an equivalent key binding. */ | |
6968 | if (NILP (cachelist)) | |
6969 | { | |
74c1de23 | 6970 | /* We have to create a cachelist. */ |
e8886a1d | 6971 | CHECK_IMPURE (start); |
f3fbd155 | 6972 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 6973 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 6974 | newcache = 1; |
3626fb1a | 6975 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6976 | if (!NILP (keyhint)) |
6977 | { | |
f3fbd155 | 6978 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
6979 | newcache = 0; |
6980 | } | |
6981 | else if (STRINGP (tem)) | |
6982 | { | |
f3fbd155 KR |
6983 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
6984 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
6985 | } |
6986 | } | |
3626fb1a | 6987 | |
7539e11f | 6988 | tem = XCAR (cachelist); |
74c1de23 RS |
6989 | if (!EQ (tem, Qt)) |
6990 | { | |
6991 | int chkcache = 0; | |
6992 | Lisp_Object prefix; | |
6993 | ||
6994 | if (!NILP (tem)) | |
8b9940e6 | 6995 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 6996 | |
3626fb1a | 6997 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
6998 | if (CONSP (prefix)) |
6999 | { | |
7539e11f KR |
7000 | def = XCAR (prefix); |
7001 | prefix = XCDR (prefix); | |
74c1de23 | 7002 | } |
e8886a1d | 7003 | else |
3626fb1a | 7004 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7005 | |
3626fb1a GM |
7006 | if (!update_menu_bindings) |
7007 | chkcache = 0; | |
7008 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7009 | { |
7010 | if (newcache /* Always check first time. */ | |
7011 | /* Should we check everything when precomputing key | |
7012 | bindings? */ | |
74c1de23 RS |
7013 | /* If something had no key binding before, don't recheck it |
7014 | because that is too slow--except if we have a list of | |
7015 | rebound commands in Vdefine_key_rebound_commands, do | |
7016 | recheck any command that appears in that list. */ | |
7017 | || (CONSP (Vdefine_key_rebound_commands) | |
7018 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7019 | chkcache = 1; | |
7020 | } | |
7021 | /* We had a saved key. Is it still bound to the command? */ | |
7022 | else if (NILP (tem) | |
03cee6ae GM |
7023 | || (!EQ (tem, def) |
7024 | /* If the command is an alias for another | |
7025 | (such as lmenu.el set it up), check if the | |
7026 | original command matches the cached command. */ | |
7027 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7028 | chkcache = 1; /* Need to recompute key binding. */ |
7029 | ||
7030 | if (chkcache) | |
7031 | { | |
7032 | /* Recompute equivalent key binding. If the command is an alias | |
7033 | for another (such as lmenu.el set it up), see if the original | |
7034 | command name has equivalent keys. Otherwise look up the | |
7035 | specified command itself. We don't try both, because that | |
7036 | makes lmenu menus slow. */ | |
3626fb1a GM |
7037 | if (SYMBOLP (def) |
7038 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7039 | && ! NILP (Fget (def, Qmenu_alias))) |
7040 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7041 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7042 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7043 | if (NILP (tem)) |
7044 | { | |
f3fbd155 | 7045 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7046 | chkcache = 0; |
7047 | } | |
7048 | } | |
7539e11f | 7049 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7050 | { |
7539e11f | 7051 | tem = XCAR (cachelist); |
74c1de23 RS |
7052 | chkcache = 1; |
7053 | } | |
7054 | ||
7055 | newcache = chkcache; | |
7056 | if (chkcache) | |
7057 | { | |
7058 | tem = Fkey_description (tem); | |
7059 | if (CONSP (prefix)) | |
7060 | { | |
7539e11f KR |
7061 | if (STRINGP (XCAR (prefix))) |
7062 | tem = concat2 (XCAR (prefix), tem); | |
7063 | if (STRINGP (XCDR (prefix))) | |
7064 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7065 | } |
f3fbd155 | 7066 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7067 | } |
7068 | } | |
7069 | ||
7539e11f | 7070 | tem = XCDR (cachelist); |
74c1de23 | 7071 | if (newcache && !NILP (tem)) |
e8886a1d | 7072 | { |
74c1de23 | 7073 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7074 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7075 | } |
7076 | ||
7077 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7078 | if (notreal) | |
adc1d5c8 | 7079 | return 1; |
e8886a1d RS |
7080 | |
7081 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7082 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7083 | |
7084 | /* Include this when menu help is implemented. | |
7085 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7086 | if (!(NILP (tem) || STRINGP (tem))) | |
7087 | { | |
7088 | tem = menu_item_eval_property (tem); | |
7089 | if (!STRINGP (tem)) | |
7090 | tem = Qnil; | |
7091 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7092 | } | |
e8886a1d RS |
7093 | */ |
7094 | ||
7095 | /* Handle radio buttons or toggle boxes. */ | |
3626fb1a | 7096 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7097 | if (!NILP (tem)) |
3626fb1a | 7098 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7099 | = menu_item_eval_property (tem); |
7100 | ||
e8886a1d RS |
7101 | return 1; |
7102 | } | |
7ee32cda GM |
7103 | |
7104 | ||
7105 | \f | |
7106 | /*********************************************************************** | |
7107 | Tool-bars | |
7108 | ***********************************************************************/ | |
7109 | ||
9ea173e8 | 7110 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7111 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7112 | in the vector. */ |
7ee32cda | 7113 | |
9ea173e8 | 7114 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7115 | |
9ea173e8 GM |
7116 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7117 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7118 | |
9ea173e8 | 7119 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7120 | |
9ea173e8 | 7121 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7122 | |
9ea173e8 | 7123 | static int ntool_bar_items; |
7ee32cda | 7124 | |
9ea173e8 | 7125 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7126 | |
9ea173e8 | 7127 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7128 | Lisp_Object QCimage; |
7129 | ||
7130 | /* Function prototypes. */ | |
7131 | ||
9ea173e8 GM |
7132 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7133 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7134 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7135 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7136 | |
7137 | ||
9ea173e8 | 7138 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7139 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7140 | tool bar items found. */ |
7ee32cda GM |
7141 | |
7142 | Lisp_Object | |
9ea173e8 | 7143 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7144 | Lisp_Object reuse; |
7145 | int *nitems; | |
7146 | { | |
7147 | Lisp_Object *maps; | |
7148 | int nmaps, i; | |
7149 | Lisp_Object oquit; | |
7150 | Lisp_Object *tmaps; | |
7151 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
7152 | extern Lisp_Object Voverriding_local_map; | |
7153 | ||
7154 | *nitems = 0; | |
7155 | ||
7156 | /* In order to build the menus, we need to call the keymap | |
7157 | accessors. They all call QUIT. But this function is called | |
7158 | during redisplay, during which a quit is fatal. So inhibit | |
7159 | quitting while building the menus. We do this instead of | |
7160 | specbind because (1) errors will clear it anyway and (2) this | |
7161 | avoids risk of specpdl overflow. */ | |
7162 | oquit = Vinhibit_quit; | |
7163 | Vinhibit_quit = Qt; | |
7164 | ||
9ea173e8 GM |
7165 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7166 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7167 | |
7168 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7169 | to process. */ | |
7170 | ||
7171 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7172 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7173 | { | |
7174 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7175 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7176 | nmaps = 0; | |
7177 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7178 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7179 | if (!NILP (Voverriding_local_map)) | |
7180 | maps[nmaps++] = Voverriding_local_map; | |
7181 | } | |
7182 | else | |
7183 | { | |
fd646341 KS |
7184 | /* No, so use major and minor mode keymaps and keymap property. |
7185 | Note that tool-bar bindings in the local-map and keymap | |
7186 | properties may not work reliable, as they are only | |
7187 | recognized when the tool-bar (or mode-line) is updated, | |
7188 | which does not normally happen after every command. */ | |
7189 | Lisp_Object tem; | |
7190 | int nminor; | |
7191 | nminor = current_minor_maps (NULL, &tmaps); | |
7192 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7193 | nmaps = 0; | |
7194 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7195 | maps[nmaps++] = tem; | |
7196 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7197 | nmaps += nminor; | |
7198 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7199 | } |
7200 | ||
7201 | /* Add global keymap at the end. */ | |
7202 | maps[nmaps++] = current_global_map; | |
7203 | ||
7204 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7205 | key `tool-bar'. */ |
7ee32cda GM |
7206 | for (i = nmaps - 1; i >= 0; --i) |
7207 | if (!NILP (maps[i])) | |
7208 | { | |
7209 | Lisp_Object keymap; | |
db785038 | 7210 | |
341a09cf | 7211 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7212 | if (CONSP (keymap)) |
7ee32cda GM |
7213 | { |
7214 | Lisp_Object tail; | |
7215 | ||
7216 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 7217 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7218 | { |
7219 | Lisp_Object keydef = XCAR (tail); | |
7220 | if (CONSP (keydef)) | |
9ea173e8 | 7221 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7222 | } |
7223 | } | |
7224 | } | |
7225 | ||
7226 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7227 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7228 | return tool_bar_items_vector; | |
7ee32cda GM |
7229 | } |
7230 | ||
7231 | ||
7232 | /* Process the definition of KEY which is DEF. */ | |
7233 | ||
7234 | static void | |
9ea173e8 | 7235 | process_tool_bar_item (key, def) |
7ee32cda GM |
7236 | Lisp_Object key, def; |
7237 | { | |
7238 | int i; | |
7239 | extern Lisp_Object Qundefined; | |
7240 | struct gcpro gcpro1, gcpro2; | |
7241 | ||
9ea173e8 | 7242 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7243 | eval. */ |
7244 | GCPRO2 (key, def); | |
7245 | ||
7246 | if (EQ (def, Qundefined)) | |
7247 | { | |
7248 | /* If a map has an explicit `undefined' as definition, | |
7249 | discard any previously made item. */ | |
9ea173e8 | 7250 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7251 | { |
9ea173e8 | 7252 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 7253 | |
9ea173e8 | 7254 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7255 | { |
9ea173e8 GM |
7256 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7257 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7258 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7259 | * sizeof (Lisp_Object))); |
9ea173e8 | 7260 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7261 | break; |
7262 | } | |
7263 | } | |
7264 | } | |
9ea173e8 GM |
7265 | else if (parse_tool_bar_item (key, def)) |
7266 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7267 | more than one definition for the same key. */ |
9ea173e8 | 7268 | append_tool_bar_item (); |
7ee32cda GM |
7269 | |
7270 | UNGCPRO; | |
7271 | } | |
7272 | ||
7273 | ||
9ea173e8 GM |
7274 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7275 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7276 | invalid. |
7277 | ||
7278 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
7279 | ||
7280 | CAPTION is the caption of the item, If it's not a string, it is | |
7281 | evaluated to get a string. | |
7282 | ||
9ea173e8 | 7283 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7284 | as binding are currently ignored. |
7285 | ||
7286 | The following properties are recognized: | |
7287 | ||
7288 | - `:enable FORM'. | |
7289 | ||
9ea173e8 GM |
7290 | FORM is evaluated and specifies whether the tool bar item is |
7291 | enabled or disabled. | |
7ee32cda GM |
7292 | |
7293 | - `:visible FORM' | |
7294 | ||
9ea173e8 | 7295 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
7296 | |
7297 | - `:filter FUNCTION' | |
7298 | ||
7299 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7300 | result is stored as the new binding. | |
7301 | ||
7302 | - `:button (TYPE SELECTED)' | |
7303 | ||
7304 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7305 | and specifies whether the button is selected (pressed) or not. | |
7306 | ||
7307 | - `:image IMAGES' | |
7308 | ||
7309 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7310 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
7311 | |
7312 | - `:help HELP-STRING'. | |
7313 | ||
9ea173e8 | 7314 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7315 | |
7316 | static int | |
9ea173e8 | 7317 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7318 | Lisp_Object key, item; |
7319 | { | |
9ea173e8 GM |
7320 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7321 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7322 | |
7323 | Lisp_Object filter = Qnil; | |
7324 | Lisp_Object caption; | |
7ee32cda | 7325 | int i; |
7ee32cda | 7326 | |
8c907a56 GM |
7327 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7328 | Rule out items that aren't lists, don't start with | |
7329 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7330 | list. */ |
7331 | if (!CONSP (item) | |
7332 | || !EQ (XCAR (item), Qmenu_item) | |
7333 | || (item = XCDR (item), | |
7334 | !CONSP (item))) | |
7335 | return 0; | |
7336 | ||
9ea173e8 | 7337 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7338 | defaults. */ |
9ea173e8 | 7339 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7340 | { |
9ea173e8 | 7341 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7342 | PROP (i) = Qnil; |
7343 | } | |
7344 | else | |
9ea173e8 GM |
7345 | tool_bar_item_properties |
7346 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
7347 | |
7348 | /* Set defaults. */ | |
9ea173e8 GM |
7349 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7350 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
7351 | |
7352 | /* Get the caption of the item. If the caption is not a string, | |
7353 | evaluate it to get a string. If we don't get a string, skip this | |
7354 | item. */ | |
7355 | caption = XCAR (item); | |
7356 | if (!STRINGP (caption)) | |
7357 | { | |
7358 | caption = menu_item_eval_property (caption); | |
7359 | if (!STRINGP (caption)) | |
7360 | return 0; | |
7361 | } | |
9ea173e8 | 7362 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7363 | |
7364 | /* Give up if rest following the caption is not a list. */ | |
7365 | item = XCDR (item); | |
7366 | if (!CONSP (item)) | |
7367 | return 0; | |
7368 | ||
7369 | /* Store the binding. */ | |
9ea173e8 | 7370 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7371 | item = XCDR (item); |
7372 | ||
8c907a56 GM |
7373 | /* Ignore cached key binding, if any. */ |
7374 | if (CONSP (item) && CONSP (XCAR (item))) | |
7375 | item = XCDR (item); | |
7376 | ||
7ee32cda GM |
7377 | /* Process the rest of the properties. */ |
7378 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7379 | { | |
7380 | Lisp_Object key, value; | |
7381 | ||
7382 | key = XCAR (item); | |
7383 | value = XCAR (XCDR (item)); | |
7384 | ||
7385 | if (EQ (key, QCenable)) | |
7386 | /* `:enable FORM'. */ | |
9ea173e8 | 7387 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7388 | else if (EQ (key, QCvisible)) |
7389 | { | |
7390 | /* `:visible FORM'. If got a visible property and that | |
7391 | evaluates to nil then ignore this item. */ | |
7392 | if (NILP (menu_item_eval_property (value))) | |
7393 | return 0; | |
7394 | } | |
7395 | else if (EQ (key, QChelp)) | |
7396 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7397 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7398 | else if (EQ (key, QCfilter)) |
7399 | /* ':filter FORM'. */ | |
7400 | filter = value; | |
7401 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7402 | { | |
7403 | /* `:button (TYPE . SELECTED)'. */ | |
7404 | Lisp_Object type, selected; | |
7405 | ||
7406 | type = XCAR (value); | |
7407 | selected = XCDR (value); | |
7408 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7409 | { | |
9ea173e8 GM |
7410 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7411 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7412 | } |
7413 | } | |
7414 | else if (EQ (key, QCimage) | |
7415 | && (CONSP (value) | |
7416 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7417 | /* Value is either a single image specification or a vector | |
27fd22dc | 7418 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7419 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7420 | } |
7421 | ||
7422 | /* If got a filter apply it on binding. */ | |
7423 | if (!NILP (filter)) | |
9ea173e8 | 7424 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7425 | = menu_item_eval_property (list2 (filter, |
7426 | list2 (Qquote, | |
9ea173e8 | 7427 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7428 | |
7429 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7430 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7431 | return 0; |
7432 | ||
7433 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7434 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7435 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7436 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
7437 | |
7438 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
7439 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7440 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7441 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7442 | |
7443 | return 1; | |
7444 | ||
7445 | #undef PROP | |
7446 | } | |
7447 | ||
7448 | ||
9ea173e8 GM |
7449 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7450 | that can be reused. */ | |
7ee32cda GM |
7451 | |
7452 | static void | |
9ea173e8 | 7453 | init_tool_bar_items (reuse) |
7ee32cda GM |
7454 | Lisp_Object reuse; |
7455 | { | |
7456 | if (VECTORP (reuse)) | |
9ea173e8 | 7457 | tool_bar_items_vector = reuse; |
7ee32cda | 7458 | else |
9ea173e8 GM |
7459 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7460 | ntool_bar_items = 0; | |
7ee32cda GM |
7461 | } |
7462 | ||
7463 | ||
9ea173e8 GM |
7464 | /* Append parsed tool bar item properties from |
7465 | tool_bar_item_properties */ | |
7ee32cda GM |
7466 | |
7467 | static void | |
9ea173e8 | 7468 | append_tool_bar_item () |
7ee32cda GM |
7469 | { |
7470 | Lisp_Object *to, *from; | |
7471 | ||
9ea173e8 GM |
7472 | /* Enlarge tool_bar_items_vector if necessary. */ |
7473 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7474 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7475 | { |
7476 | Lisp_Object new_vector; | |
9ea173e8 | 7477 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7478 | |
7479 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7480 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7481 | XVECTOR (new_vector)->contents, |
7482 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7483 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7484 | } |
7485 | ||
9ea173e8 GM |
7486 | /* Append entries from tool_bar_item_properties to the end of |
7487 | tool_bar_items_vector. */ | |
7488 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7489 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7490 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7491 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7492 | } |
7493 | ||
7494 | ||
7495 | ||
7496 | ||
e8886a1d | 7497 | \f |
dcc408a0 RS |
7498 | /* Read a character using menus based on maps in the array MAPS. |
7499 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7500 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7501 | |
7502 | PREV_EVENT is the previous input event, or nil if we are reading | |
7503 | the first event of a key sequence. | |
7504 | ||
83d68044 | 7505 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7506 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7507 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7508 | |
7509 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7510 | and the strings associated with various map elements. |
8150596a RS |
7511 | |
7512 | This can be done with X menus or with menus put in the minibuf. | |
7513 | These are done in different ways, depending on how the input will be read. | |
7514 | Menus using X are done after auto-saving in read-char, getting the input | |
7515 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7516 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7517 | |
7617111f | 7518 | static Lisp_Object |
8150596a | 7519 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7520 | int nmaps; |
7521 | Lisp_Object *maps; | |
7522 | Lisp_Object prev_event; | |
7523 | int *used_mouse_menu; | |
284f4730 | 7524 | { |
7d6de002 RS |
7525 | int mapno; |
7526 | register Lisp_Object name; | |
7d6de002 | 7527 | |
6569cc8d JB |
7528 | if (used_mouse_menu) |
7529 | *used_mouse_menu = 0; | |
284f4730 JB |
7530 | |
7531 | /* Use local over global Menu maps */ | |
7532 | ||
7d6de002 RS |
7533 | if (! menu_prompting) |
7534 | return Qnil; | |
7535 | ||
03361bcc RS |
7536 | /* Optionally disregard all but the global map. */ |
7537 | if (inhibit_local_menu_bar_menus) | |
7538 | { | |
7539 | maps += (nmaps - 1); | |
7540 | nmaps = 1; | |
7541 | } | |
7542 | ||
7d6de002 RS |
7543 | /* Get the menu name from the first map that has one (a prompt string). */ |
7544 | for (mapno = 0; mapno < nmaps; mapno++) | |
7545 | { | |
bdb7aa47 | 7546 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7547 | if (!NILP (name)) |
7548 | break; | |
7549 | } | |
284f4730 | 7550 | |
7d6de002 | 7551 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 7552 | if (mapno >= nmaps) |
7d6de002 RS |
7553 | return Qnil; |
7554 | ||
1f5b1641 | 7555 | #ifdef HAVE_MENUS |
7d6de002 RS |
7556 | /* If we got to this point via a mouse click, |
7557 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7558 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7559 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7560 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7561 | { |
7562 | /* Display the menu and get the selection. */ | |
7563 | Lisp_Object *realmaps | |
7564 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7565 | Lisp_Object value; | |
7566 | int nmaps1 = 0; | |
7567 | ||
7568 | /* Use the maps that are not nil. */ | |
7569 | for (mapno = 0; mapno < nmaps; mapno++) | |
7570 | if (!NILP (maps[mapno])) | |
7571 | realmaps[nmaps1++] = maps[mapno]; | |
7572 | ||
7573 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7574 | if (CONSP (value)) |
7575 | { | |
68f297c5 RS |
7576 | Lisp_Object tem; |
7577 | ||
7539e11f | 7578 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7579 | |
68f297c5 RS |
7580 | /* If we got multiple events, unread all but |
7581 | the first. | |
7582 | There is no way to prevent those unread events | |
7583 | from showing up later in last_nonmenu_event. | |
7584 | So turn symbol and integer events into lists, | |
7585 | to indicate that they came from a mouse menu, | |
7586 | so that when present in last_nonmenu_event | |
7587 | they won't confuse things. */ | |
f4e05d97 | 7588 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7589 | { |
7539e11f KR |
7590 | record_menu_key (XCAR (tem)); |
7591 | if (SYMBOLP (XCAR (tem)) | |
7592 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 7593 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 7594 | } |
68f297c5 | 7595 | |
663258f2 JB |
7596 | /* If we got more than one event, put all but the first |
7597 | onto this list to be read later. | |
7598 | Return just the first event now. */ | |
24597608 | 7599 | Vunread_command_events |
7539e11f KR |
7600 | = nconc2 (XCDR (value), Vunread_command_events); |
7601 | value = XCAR (value); | |
663258f2 | 7602 | } |
1c90c381 | 7603 | else if (NILP (value)) |
dcc408a0 | 7604 | value = Qt; |
6569cc8d JB |
7605 | if (used_mouse_menu) |
7606 | *used_mouse_menu = 1; | |
7d6de002 RS |
7607 | return value; |
7608 | } | |
1f5b1641 | 7609 | #endif /* HAVE_MENUS */ |
8150596a RS |
7610 | return Qnil ; |
7611 | } | |
7612 | ||
68e0de82 RS |
7613 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7614 | We make this bigger when necessary, and never free it. */ | |
7615 | static char *read_char_minibuf_menu_text; | |
7616 | /* Size of that buffer. */ | |
7617 | static int read_char_minibuf_menu_width; | |
7618 | ||
8150596a | 7619 | static Lisp_Object |
24597608 | 7620 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7621 | int commandflag ; |
7622 | int nmaps; | |
7623 | Lisp_Object *maps; | |
7624 | { | |
7625 | int mapno; | |
7626 | register Lisp_Object name; | |
7627 | int nlength; | |
788f89eb | 7628 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 7629 | int idx = -1; |
9fdbfdf8 | 7630 | int nobindings = 1; |
8150596a | 7631 | Lisp_Object rest, vector; |
68e0de82 | 7632 | char *menu; |
8150596a | 7633 | |
8c907a56 | 7634 | vector = Qnil; |
7189cad8 | 7635 | name = Qnil; |
8c907a56 | 7636 | |
8150596a RS |
7637 | if (! menu_prompting) |
7638 | return Qnil; | |
7639 | ||
68e0de82 RS |
7640 | /* Make sure we have a big enough buffer for the menu text. */ |
7641 | if (read_char_minibuf_menu_text == 0) | |
7642 | { | |
7643 | read_char_minibuf_menu_width = width + 4; | |
7644 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7645 | } | |
7646 | else if (width + 4 > read_char_minibuf_menu_width) | |
7647 | { | |
7648 | read_char_minibuf_menu_width = width + 4; | |
7649 | read_char_minibuf_menu_text | |
7650 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7651 | } | |
7652 | menu = read_char_minibuf_menu_text; | |
7653 | ||
8150596a RS |
7654 | /* Get the menu name from the first map that has one (a prompt string). */ |
7655 | for (mapno = 0; mapno < nmaps; mapno++) | |
7656 | { | |
bdb7aa47 | 7657 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
7658 | if (!NILP (name)) |
7659 | break; | |
7660 | } | |
7661 | ||
7662 | /* If we don't have any menus, just read a character normally. */ | |
7189cad8 | 7663 | if (!STRINGP (name)); |
8150596a | 7664 | return Qnil; |
284f4730 JB |
7665 | |
7666 | /* Prompt string always starts with map's prompt, and a space. */ | |
7667 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 7668 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 7669 | menu[nlength++] = ':'; |
284f4730 JB |
7670 | menu[nlength++] = ' '; |
7671 | menu[nlength] = 0; | |
7672 | ||
7d6de002 RS |
7673 | /* Start prompting at start of first map. */ |
7674 | mapno = 0; | |
7675 | rest = maps[mapno]; | |
284f4730 JB |
7676 | |
7677 | /* Present the documented bindings, a line at a time. */ | |
7678 | while (1) | |
7679 | { | |
7680 | int notfirst = 0; | |
7681 | int i = nlength; | |
7682 | Lisp_Object obj; | |
7683 | int ch; | |
8066f1a1 | 7684 | Lisp_Object orig_defn_macro; |
284f4730 | 7685 | |
284f4730 | 7686 | /* Loop over elements of map. */ |
7d6de002 | 7687 | while (i < width) |
284f4730 | 7688 | { |
fd3613d7 | 7689 | Lisp_Object elt; |
284f4730 | 7690 | |
7d6de002 RS |
7691 | /* If reached end of map, start at beginning of next map. */ |
7692 | if (NILP (rest)) | |
7693 | { | |
7694 | mapno++; | |
7695 | /* At end of last map, wrap around to first map if just starting, | |
7696 | or end this line if already have something on it. */ | |
7697 | if (mapno == nmaps) | |
284f4730 | 7698 | { |
8150596a | 7699 | mapno = 0; |
40932d1a | 7700 | if (notfirst || nobindings) break; |
284f4730 | 7701 | } |
7d6de002 | 7702 | rest = maps[mapno]; |
284f4730 | 7703 | } |
7d6de002 RS |
7704 | |
7705 | /* Look at the next element of the map. */ | |
7706 | if (idx >= 0) | |
7707 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 7708 | else |
7d6de002 RS |
7709 | elt = Fcar_safe (rest); |
7710 | ||
8c18cbfb | 7711 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7712 | { |
7d6de002 RS |
7713 | /* If we found a dense table in the keymap, |
7714 | advanced past it, but start scanning its contents. */ | |
7715 | rest = Fcdr_safe (rest); | |
7716 | vector = elt; | |
7717 | idx = 0; | |
284f4730 | 7718 | } |
7d6de002 RS |
7719 | else |
7720 | { | |
7721 | /* An ordinary element. */ | |
fd3613d7 | 7722 | Lisp_Object event, tem; |
0a2ea221 KH |
7723 | |
7724 | if (idx < 0) | |
7725 | { | |
fd3613d7 RS |
7726 | event = Fcar_safe (elt); /* alist */ |
7727 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7728 | } |
8150596a | 7729 | else |
7d6de002 | 7730 | { |
fd3613d7 | 7731 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7732 | } |
7733 | ||
7734 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7735 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7736 | { |
7737 | /* 1 if the char to type matches the string. */ | |
7738 | int char_matches; | |
7739 | Lisp_Object upcased_event, downcased_event; | |
8c907a56 | 7740 | Lisp_Object desc = Qnil; |
fd3613d7 RS |
7741 | Lisp_Object s |
7742 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7743 | |
7744 | upcased_event = Fupcase (event); | |
7745 | downcased_event = Fdowncase (event); | |
7746 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7747 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7748 | if (! char_matches) | |
efff6e49 | 7749 | desc = Fsingle_key_description (event, Qnil); |
0a2ea221 | 7750 | |
fd3613d7 RS |
7751 | tem |
7752 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7753 | if (!NILP (tem)) | |
7754 | /* Insert equivalent keybinding. */ | |
7755 | s = concat2 (s, tem); | |
7756 | ||
7757 | tem | |
7758 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7759 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7760 | { | |
7761 | /* Insert button prefix. */ | |
7762 | Lisp_Object selected | |
7763 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7764 | if (EQ (tem, QCradio)) | |
7765 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7766 | else | |
7767 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7768 | s = concat2 (tem, s); | |
7769 | } | |
7770 | ||
7771 | ||
0a2ea221 KH |
7772 | /* If we have room for the prompt string, add it to this line. |
7773 | If this is the first on the line, always add it. */ | |
7774 | if ((XSTRING (s)->size + i + 2 | |
7775 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7776 | < width | |
7777 | || !notfirst) | |
7778 | { | |
7779 | int thiswidth; | |
7780 | ||
7781 | /* Punctuate between strings. */ | |
7782 | if (notfirst) | |
7783 | { | |
7784 | strcpy (menu + i, ", "); | |
7785 | i += 2; | |
7786 | } | |
7787 | notfirst = 1; | |
7788 | nobindings = 0 ; | |
284f4730 | 7789 | |
0a2ea221 KH |
7790 | /* If the char to type doesn't match the string's |
7791 | first char, explicitly show what char to type. */ | |
7792 | if (! char_matches) | |
7793 | { | |
7794 | /* Add as much of string as fits. */ | |
7795 | thiswidth = XSTRING (desc)->size; | |
7796 | if (thiswidth + i > width) | |
7797 | thiswidth = width - i; | |
7798 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7799 | i += thiswidth; | |
7800 | strcpy (menu + i, " = "); | |
7801 | i += 3; | |
7802 | } | |
7803 | ||
7804 | /* Add as much of string as fits. */ | |
7805 | thiswidth = XSTRING (s)->size; | |
7806 | if (thiswidth + i > width) | |
7807 | thiswidth = width - i; | |
7808 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7809 | i += thiswidth; | |
7810 | menu[i] = 0; | |
7811 | } | |
7812 | else | |
7d6de002 | 7813 | { |
0a2ea221 KH |
7814 | /* If this element does not fit, end the line now, |
7815 | and save the element for the next line. */ | |
7816 | strcpy (menu + i, "..."); | |
7817 | break; | |
7d6de002 | 7818 | } |
7d6de002 RS |
7819 | } |
7820 | ||
7821 | /* Move past this element. */ | |
8150596a | 7822 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7823 | /* Handle reaching end of dense table. */ |
7824 | idx = -1; | |
7825 | if (idx >= 0) | |
7826 | idx++; | |
7827 | else | |
7828 | rest = Fcdr_safe (rest); | |
7829 | } | |
284f4730 JB |
7830 | } |
7831 | ||
7832 | /* Prompt with that and read response. */ | |
301738ed RS |
7833 | message2_nolog (menu, strlen (menu), |
7834 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7835 | |
df0f2ba1 | 7836 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7837 | is pressed. Help characters are not recorded because menu prompting |
7838 | is not used on replay. | |
7839 | */ | |
c5fdd383 KH |
7840 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7841 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 | 7842 | do |
7735786b | 7843 | obj = read_char (commandflag, 0, 0, Qt, 0); |
8c18cbfb | 7844 | while (BUFFERP (obj)); |
c5fdd383 | 7845 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7846 | |
8c18cbfb | 7847 | if (!INTEGERP (obj)) |
284f4730 JB |
7848 | return obj; |
7849 | else | |
7850 | ch = XINT (obj); | |
7851 | ||
f4255cd1 | 7852 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7853 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7854 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7855 | { |
c5fdd383 | 7856 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7857 | store_kbd_macro_char (obj); |
8150596a RS |
7858 | return obj; |
7859 | } | |
7860 | /* Help char - go round again */ | |
284f4730 JB |
7861 | } |
7862 | } | |
284f4730 JB |
7863 | \f |
7864 | /* Reading key sequences. */ | |
7865 | ||
7866 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7867 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7868 | keymap, or nil otherwise. Return the index of the first keymap in | |
7869 | which KEY has any binding, or NMAPS if no map has a binding. | |
7870 | ||
7871 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7872 | followed by the corresponding non-meta character. Keymaps in | |
7873 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7874 | NEXT. | |
7875 | ||
88cb0656 JB |
7876 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7877 | unmodified. | |
7878 | ||
569871d2 | 7879 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7880 | |
7881 | static int | |
4e50f26a | 7882 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7883 | Lisp_Object key; |
7884 | Lisp_Object *current, *defs, *next; | |
7885 | int nmaps; | |
7886 | { | |
7887 | int i, first_binding; | |
569871d2 | 7888 | int did_meta = 0; |
284f4730 | 7889 | |
284f4730 JB |
7890 | first_binding = nmaps; |
7891 | for (i = nmaps - 1; i >= 0; i--) | |
7892 | { | |
7893 | if (! NILP (current[i])) | |
7894 | { | |
569871d2 RS |
7895 | Lisp_Object map; |
7896 | if (did_meta) | |
7897 | map = defs[i]; | |
7898 | else | |
7899 | map = current[i]; | |
7900 | ||
db785038 | 7901 | defs[i] = access_keymap (map, key, 1, 0, 1); |
284f4730 JB |
7902 | if (! NILP (defs[i])) |
7903 | first_binding = i; | |
7904 | } | |
7905 | else | |
7906 | defs[i] = Qnil; | |
7907 | } | |
7908 | ||
284f4730 | 7909 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7910 | if (first_binding < nmaps) |
7911 | for (i = 0; i < nmaps; i++) | |
02067692 | 7912 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
7913 | |
7914 | return first_binding; | |
7915 | } | |
7916 | ||
df0f2ba1 | 7917 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7918 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7919 | Prompt with PROMPT. | |
284f4730 | 7920 | Return the length of the key sequence stored. |
dcc408a0 | 7921 | Return -1 if the user rejected a command menu. |
284f4730 | 7922 | |
f4255cd1 JB |
7923 | Echo starting immediately unless `prompt' is 0. |
7924 | ||
7925 | Where a key sequence ends depends on the currently active keymaps. | |
7926 | These include any minor mode keymaps active in the current buffer, | |
7927 | the current buffer's local map, and the global map. | |
7928 | ||
7929 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7930 | to see if some trailing subsequence might be the beginning of a | |
7931 | function key's sequence. If so, we try to read the whole function | |
7932 | key, and substitute its symbolic name into the key sequence. | |
7933 | ||
fbcd35bd JB |
7934 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7935 | `double-' events into similar click events, if that would make them | |
7936 | bound. We try to turn `triple-' events first into `double-' events, | |
7937 | then into clicks. | |
f4255cd1 JB |
7938 | |
7939 | If we get a mouse click in a mode line, vertical divider, or other | |
7940 | non-text area, we treat the click as if it were prefixed by the | |
7941 | symbol denoting that area - `mode-line', `vertical-line', or | |
7942 | whatever. | |
7943 | ||
7944 | If the sequence starts with a mouse click, we read the key sequence | |
7945 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7946 | |
f4255cd1 JB |
7947 | If the user switches frames in the midst of a key sequence, we put |
7948 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7949 | read_char will return it. |
7950 | ||
7951 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7952 | from the selected window's buffer. */ | |
48e416d4 | 7953 | |
284f4730 | 7954 | static int |
ce98e608 | 7955 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7956 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7957 | Lisp_Object *keybuf; |
7958 | int bufsize; | |
84d91fda | 7959 | Lisp_Object prompt; |
309b0fc8 | 7960 | int dont_downcase_last; |
ce98e608 | 7961 | int can_return_switch_frame; |
f571ae0d | 7962 | int fix_current_buffer; |
284f4730 | 7963 | { |
db14cfc5 | 7964 | volatile Lisp_Object from_string; |
8c907a56 | 7965 | volatile int count = specpdl_ptr - specpdl; |
f4255cd1 | 7966 | |
284f4730 | 7967 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 7968 | volatile int t; |
284f4730 | 7969 | |
284f4730 JB |
7970 | /* The length of the echo buffer when we started reading, and |
7971 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
7972 | volatile int echo_start; |
7973 | volatile int keys_start; | |
284f4730 JB |
7974 | |
7975 | /* The number of keymaps we're scanning right now, and the number of | |
7976 | keymaps we have allocated space for. */ | |
8c907a56 GM |
7977 | volatile int nmaps; |
7978 | volatile int nmaps_allocated = 0; | |
284f4730 | 7979 | |
284f4730 JB |
7980 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7981 | the current keymaps. */ | |
8c907a56 | 7982 | Lisp_Object *volatile defs = NULL; |
284f4730 | 7983 | |
f4255cd1 JB |
7984 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7985 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 7986 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 7987 | |
e0dff5f6 | 7988 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 7989 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 7990 | |
30690496 DL |
7991 | /* The map from the `keymap' property to start out with at start of |
7992 | key sequence. */ | |
8c907a56 | 7993 | volatile Lisp_Object orig_keymap; |
30690496 | 7994 | |
e0dff5f6 RS |
7995 | /* 1 if we have already considered switching to the local-map property |
7996 | of the place where a mouse click occurred. */ | |
8c907a56 | 7997 | volatile int localized_local_map = 0; |
e0dff5f6 | 7998 | |
f4255cd1 JB |
7999 | /* The index in defs[] of the first keymap that has a binding for |
8000 | this key sequence. In other words, the lowest i such that | |
8001 | defs[i] is non-nil. */ | |
8c907a56 | 8002 | volatile int first_binding; |
7189cad8 SM |
8003 | /* Index of the first key that has no binding. |
8004 | It is useless to try fkey_start larger than that. */ | |
8005 | volatile int first_unbound; | |
284f4730 | 8006 | |
f4255cd1 | 8007 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8008 | input key. |
8009 | ||
8010 | We use this to recover after recognizing a function key. Once we | |
8011 | realize that a suffix of the current key sequence is actually a | |
8012 | function key's escape sequence, we replace the suffix with the | |
8013 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8014 | contains a new and different key sequence, so the echo area, |
8015 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8016 | this situation, we set mock_input to t, set t to 0, and jump to | |
8017 | restart_sequence; the loop will read keys from keybuf up until | |
8018 | mock_input, thus rebuilding the state; and then it will resume | |
8019 | reading characters from the keyboard. */ | |
8c907a56 | 8020 | volatile int mock_input = 0; |
284f4730 | 8021 | |
253598e4 | 8022 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
8023 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
8024 | and fkey_map is its binding. | |
253598e4 | 8025 | |
f4255cd1 JB |
8026 | These might be > t, indicating that all function key scanning |
8027 | should hold off until t reaches them. We do this when we've just | |
8028 | recognized a function key, to avoid searching for the function | |
8029 | key's again in Vfunction_key_map. */ | |
8c907a56 GM |
8030 | volatile int fkey_start = 0, fkey_end = 0; |
8031 | volatile Lisp_Object fkey_map; | |
284f4730 | 8032 | |
a612e298 | 8033 | /* Likewise, for key_translation_map. */ |
8c907a56 GM |
8034 | volatile int keytran_start = 0, keytran_end = 0; |
8035 | volatile Lisp_Object keytran_map; | |
a612e298 | 8036 | |
cd21b839 JB |
8037 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
8038 | we put it off for later. While we're reading, we keep the event here. */ | |
8c907a56 | 8039 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8040 | |
51763820 BF |
8041 | /* See the comment below... */ |
8042 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8043 | Lisp_Object first_event; |
51763820 | 8044 | #endif |
4efda7dd | 8045 | |
8c907a56 GM |
8046 | volatile Lisp_Object original_uppercase; |
8047 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8048 | |
bc536d84 | 8049 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8050 | int dummyflag = 0; |
bc536d84 | 8051 | |
3b9189f8 RS |
8052 | struct buffer *starting_buffer; |
8053 | ||
e9bf89a0 RS |
8054 | /* Nonzero if we seem to have got the beginning of a binding |
8055 | in function_key_map. */ | |
8c907a56 GM |
8056 | volatile int function_key_possible = 0; |
8057 | volatile int key_translation_possible = 0; | |
e9bf89a0 | 8058 | |
2dc00208 GM |
8059 | /* List of events for which a fake prefix key has been generated. */ |
8060 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8061 | ||
3fe8e9a2 RS |
8062 | /* Save the status of key translation before each step, |
8063 | so that we can restore this after downcasing. */ | |
8064 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
8065 | int prev_fkey_start; |
8066 | int prev_fkey_end; | |
3fe8e9a2 RS |
8067 | |
8068 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
8069 | int prev_keytran_start; |
8070 | int prev_keytran_end; | |
3fe8e9a2 | 8071 | |
03cee6ae | 8072 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8073 | int junk; |
03cee6ae | 8074 | #endif |
4efda7dd | 8075 | |
2dc00208 GM |
8076 | struct gcpro gcpro1; |
8077 | ||
8078 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8079 | raw_keybuf_count = 0; |
8080 | ||
4efda7dd RS |
8081 | last_nonmenu_event = Qnil; |
8082 | ||
8083 | delayed_switch_frame = Qnil; | |
8084 | fkey_map = Vfunction_key_map; | |
a612e298 | 8085 | keytran_map = Vkey_translation_map; |
f4255cd1 | 8086 | |
a612e298 | 8087 | /* If there is no function-key-map, turn off function key scanning. */ |
02067692 | 8088 | if (!KEYMAPP (Vfunction_key_map)) |
f4255cd1 JB |
8089 | fkey_start = fkey_end = bufsize + 1; |
8090 | ||
a612e298 | 8091 | /* If there is no key-translation-map, turn off scanning. */ |
02067692 | 8092 | if (!KEYMAPP (Vkey_translation_map)) |
a612e298 RS |
8093 | keytran_start = keytran_end = bufsize + 1; |
8094 | ||
284f4730 JB |
8095 | if (INTERACTIVE) |
8096 | { | |
84d91fda | 8097 | if (!NILP (prompt)) |
a4ef85ee | 8098 | echo_prompt (prompt); |
f2647d04 DL |
8099 | else if (cursor_in_echo_area |
8100 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8101 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8102 | /* This doesn't put in a dash if the echo buffer is empty, so |
8103 | you don't always see a dash hanging out in the minibuffer. */ | |
8104 | echo_dash (); | |
284f4730 JB |
8105 | } |
8106 | ||
f4255cd1 JB |
8107 | /* Record the initial state of the echo area and this_command_keys; |
8108 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8109 | if (INTERACTIVE) |
df0f2ba1 | 8110 | echo_start = echo_length (); |
f4255cd1 | 8111 | keys_start = this_command_key_count; |
6321824f | 8112 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8113 | |
51763820 BF |
8114 | #if defined (GOBBLE_FIRST_EVENT) |
8115 | /* This doesn't quite work, because some of the things that read_char | |
8116 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8117 | this work right. */ |
51763820 | 8118 | |
4efda7dd RS |
8119 | /* Read the first char of the sequence specially, before setting |
8120 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8121 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8122 | &junk); |
51763820 | 8123 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8124 | |
24a40fbb GM |
8125 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8126 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8127 | from_string = Qnil; |
e0dff5f6 | 8128 | |
7b4aedb9 JB |
8129 | /* We jump here when the key sequence has been thoroughly changed, and |
8130 | we need to rescan it starting from the beginning. When we jump here, | |
8131 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8132 | replay_sequence: |
7b4aedb9 | 8133 | |
3b9189f8 | 8134 | starting_buffer = current_buffer; |
e9bf89a0 | 8135 | function_key_possible = 0; |
00a78037 | 8136 | key_translation_possible = 0; |
7189cad8 | 8137 | first_unbound = bufsize + 1; |
3b9189f8 | 8138 | |
f4255cd1 | 8139 | /* Build our list of keymaps. |
07d2b8de JB |
8140 | If we recognize a function key and replace its escape sequence in |
8141 | keybuf with its symbol, or if the sequence starts with a mouse | |
8142 | click and we need to switch buffers, we jump back here to rebuild | |
8143 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8144 | nmaps = 0; |
284f4730 | 8145 | |
4cbedc16 RS |
8146 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8147 | || !NILP (Voverriding_local_map)) | |
8148 | { | |
8149 | if (3 > nmaps_allocated) | |
8150 | { | |
8151 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8152 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8153 | nmaps_allocated = 3; | |
8154 | } | |
8155 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8156 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8157 | if (!NILP (Voverriding_local_map)) | |
8158 | submaps[nmaps++] = Voverriding_local_map; | |
8159 | } | |
8160 | else | |
8161 | { | |
4cbedc16 RS |
8162 | int nminor; |
8163 | int total; | |
8164 | Lisp_Object *maps; | |
8165 | ||
8166 | nminor = current_minor_maps (0, &maps); | |
8167 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8168 | ||
8169 | if (total > nmaps_allocated) | |
8170 | { | |
8171 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8172 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8173 | nmaps_allocated = total; | |
8174 | } | |
8175 | ||
8176 | if (!NILP (orig_keymap)) | |
8177 | submaps[nmaps++] = orig_keymap; | |
8178 | ||
7d1c4866 | 8179 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8180 | nminor * sizeof (submaps[0])); |
8181 | ||
8182 | nmaps += nminor; | |
8183 | ||
8184 | submaps[nmaps++] = orig_local_map; | |
8185 | } | |
8186 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8187 | |
8188 | /* Find an accurate initial value for first_binding. */ | |
8189 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8190 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8191 | break; |
8192 | ||
3b9189f8 | 8193 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8194 | t = 0; |
8195 | ||
8196 | /* These are no-ops the first time through, but if we restart, they | |
8197 | revert the echo area and this_command_keys to their original state. */ | |
8198 | this_command_key_count = keys_start; | |
df0f2ba1 | 8199 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8200 | echo_truncate (echo_start); |
8201 | ||
cca310da JB |
8202 | /* If the best binding for the current key sequence is a keymap, or |
8203 | we may be looking at a function key's escape sequence, keep on | |
8204 | reading. */ | |
253598e4 | 8205 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da | 8206 | || (first_binding >= nmaps |
7189cad8 | 8207 | && fkey_start < t) |
0d882d52 KH |
8208 | || (first_binding >= nmaps |
8209 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
8210 | /* Don't return in the middle of a possible function key sequence, |
8211 | if the only bindings we found were via case conversion. | |
8212 | Thus, if ESC O a has a function-key-map translation | |
8213 | and ESC o has a binding, don't return after ESC O, | |
8214 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 8215 | ) |
284f4730 JB |
8216 | { |
8217 | Lisp_Object key; | |
7d6de002 | 8218 | int used_mouse_menu = 0; |
284f4730 | 8219 | |
7b4aedb9 JB |
8220 | /* Where the last real key started. If we need to throw away a |
8221 | key that has expanded into more than one element of keybuf | |
8222 | (say, a mouse click on the mode line which is being treated | |
8223 | as [mode-line (mouse-...)], then we backtrack to this point | |
8224 | of keybuf. */ | |
8c907a56 | 8225 | volatile int last_real_key_start; |
7b4aedb9 | 8226 | |
0a7f1fc0 JB |
8227 | /* These variables are analogous to echo_start and keys_start; |
8228 | while those allow us to restart the entire key sequence, | |
8229 | echo_local_start and keys_local_start allow us to throw away | |
8230 | just one key. */ | |
8c907a56 | 8231 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8232 | |
7189cad8 SM |
8233 | |
8234 | if (first_unbound < fkey_start && first_unbound < keytran_start) | |
8235 | { /* The prefix upto first_unbound has no binding and has | |
8236 | no translation left to do either, so we know it's unbound. | |
8237 | If we don't stop now, we risk staying here indefinitely | |
8238 | (if the user keeps entering fkey or keytran prefixes | |
8239 | like C-c ESC ESC ESC ESC ...) */ | |
8240 | int i; | |
8241 | for (i = first_unbound + 1; i < t; i++) | |
8242 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8243 | mock_input = t - first_unbound - 1; | |
8244 | fkey_end = fkey_start -= first_unbound + 1; | |
8245 | fkey_map = Vfunction_key_map; | |
8246 | keytran_end = keytran_start -= first_unbound + 1; | |
8247 | keytran_map = Vkey_translation_map; | |
8248 | goto replay_sequence; | |
8249 | } | |
8250 | ||
284f4730 | 8251 | if (t >= bufsize) |
3fe8e9a2 | 8252 | error ("Key sequence too long"); |
284f4730 | 8253 | |
f4255cd1 JB |
8254 | if (INTERACTIVE) |
8255 | echo_local_start = echo_length (); | |
8256 | keys_local_start = this_command_key_count; | |
8257 | local_first_binding = first_binding; | |
df0f2ba1 | 8258 | |
f4255cd1 | 8259 | replay_key: |
0a7f1fc0 | 8260 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8261 | jumped back up to replay_key; in that case, these restore the |
8262 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8263 | loop. */ |
40932d1a | 8264 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8265 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8266 | this_command_key_count = keys_local_start; |
8267 | first_binding = local_first_binding; | |
8268 | ||
7e85b935 RS |
8269 | /* By default, assume each event is "real". */ |
8270 | last_real_key_start = t; | |
8271 | ||
f4255cd1 | 8272 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8273 | if (t < mock_input) |
8274 | { | |
8275 | key = keybuf[t]; | |
8276 | add_command_key (key); | |
f2647d04 DL |
8277 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8278 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8279 | echo_char (key); |
284f4730 | 8280 | } |
253598e4 JB |
8281 | |
8282 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8283 | else |
8284 | { | |
beecf6a1 | 8285 | { |
c5fdd383 KH |
8286 | #ifdef MULTI_KBOARD |
8287 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8288 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8289 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8290 | { |
5798cf15 KH |
8291 | if (!NILP (delayed_switch_frame)) |
8292 | { | |
c5fdd383 | 8293 | interrupted_kboard->kbd_queue |
5798cf15 | 8294 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8295 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8296 | delayed_switch_frame = Qnil; |
8297 | } | |
beecf6a1 | 8298 | while (t > 0) |
c5fdd383 KH |
8299 | interrupted_kboard->kbd_queue |
8300 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8301 | |
8302 | /* If the side queue is non-empty, ensure it begins with a | |
8303 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8304 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8305 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8306 | !(EVENT_HAS_PARAMETERS (key) |
8307 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8308 | Qswitch_frame)))) | |
df0f2ba1 KH |
8309 | { |
8310 | Lisp_Object frame; | |
8311 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8312 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8313 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8314 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8315 | } |
beecf6a1 | 8316 | mock_input = 0; |
24a40fbb GM |
8317 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8318 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8319 | goto replay_sequence; |
8320 | } | |
bded54dd | 8321 | #endif |
8c907a56 GM |
8322 | key = read_char (NILP (prompt), nmaps, |
8323 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8324 | &used_mouse_menu); |
8325 | } | |
284f4730 | 8326 | |
dcc408a0 RS |
8327 | /* read_char returns t when it shows a menu and the user rejects it. |
8328 | Just return -1. */ | |
8329 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8330 | { |
8331 | unbind_to (count, Qnil); | |
2dc00208 | 8332 | UNGCPRO; |
7d18f9ae RS |
8333 | return -1; |
8334 | } | |
dcc408a0 | 8335 | |
f4255cd1 | 8336 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8337 | Emacs 18 handles this by returning immediately with a |
8338 | zero, so that's what we'll do. */ | |
8c18cbfb | 8339 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8340 | { |
f4255cd1 | 8341 | t = 0; |
bc536d84 RS |
8342 | /* The Microsoft C compiler can't handle the goto that |
8343 | would go here. */ | |
309b0fc8 | 8344 | dummyflag = 1; |
bc536d84 | 8345 | break; |
cd21b839 | 8346 | } |
df0f2ba1 | 8347 | |
3cb81011 KH |
8348 | /* If the current buffer has been changed from under us, the |
8349 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8350 | if (BUFFERP (key)) |
3cb81011 KH |
8351 | { |
8352 | mock_input = t; | |
f571ae0d RS |
8353 | /* Reset the current buffer from the selected window |
8354 | in case something changed the former and not the latter. | |
8355 | This is to be more consistent with the behavior | |
8356 | of the command_loop_1. */ | |
8357 | if (fix_current_buffer) | |
a94a4335 | 8358 | { |
788f89eb | 8359 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8360 | Fkill_emacs (Qnil); |
8361 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8362 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8363 | } | |
f571ae0d | 8364 | |
24a40fbb GM |
8365 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8366 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8367 | goto replay_sequence; |
8368 | } | |
8369 | ||
3b9189f8 RS |
8370 | /* If we have a quit that was typed in another frame, and |
8371 | quit_throw_to_read_char switched buffers, | |
8372 | replay to get the right keymap. */ | |
f4e05d97 GM |
8373 | if (INTEGERP (key) |
8374 | && XINT (key) == quit_char | |
8375 | && current_buffer != starting_buffer) | |
3b9189f8 | 8376 | { |
7d18f9ae RS |
8377 | GROW_RAW_KEYBUF; |
8378 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8379 | keybuf[t++] = key; |
8380 | mock_input = t; | |
8381 | Vquit_flag = Qnil; | |
24a40fbb GM |
8382 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8383 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8384 | goto replay_sequence; |
8385 | } | |
3cb81011 | 8386 | |
284f4730 | 8387 | Vquit_flag = Qnil; |
7d18f9ae RS |
8388 | |
8389 | if (EVENT_HAS_PARAMETERS (key) | |
8390 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
8391 | { | |
8392 | /* If we're at the beginning of a key sequence, and the caller | |
8393 | says it's okay, go ahead and return this event. If we're | |
8394 | in the midst of a key sequence, delay it until the end. */ | |
8395 | if (t > 0 || !can_return_switch_frame) | |
8396 | { | |
8397 | delayed_switch_frame = key; | |
8398 | goto replay_key; | |
8399 | } | |
8400 | } | |
8401 | ||
8402 | GROW_RAW_KEYBUF; | |
8403 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8404 | } |
284f4730 | 8405 | |
df0f2ba1 | 8406 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8407 | in their CHAR-ADDRESS field. For example, a click on |
8408 | the mode line is prefixed by the symbol `mode-line'. | |
8409 | ||
8410 | Furthermore, key sequences beginning with mouse clicks | |
8411 | are read using the keymaps of the buffer clicked on, not | |
8412 | the current buffer. So we may have to switch the buffer | |
8413 | here. | |
8414 | ||
8415 | When we turn one event into two events, we must make sure | |
8416 | that neither of the two looks like the original--so that, | |
8417 | if we replay the events, they won't be expanded again. | |
8418 | If not for this, such reexpansion could happen either here | |
8419 | or when user programs play with this-command-keys. */ | |
8420 | if (EVENT_HAS_PARAMETERS (key)) | |
8421 | { | |
9b8eb840 | 8422 | Lisp_Object kind; |
cca310da | 8423 | |
9b8eb840 | 8424 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8425 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8426 | { |
9b8eb840 | 8427 | Lisp_Object window, posn; |
f4255cd1 | 8428 | |
9b8eb840 KH |
8429 | window = POSN_WINDOW (EVENT_START (key)); |
8430 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8431 | |
2cf066c3 GM |
8432 | if (CONSP (posn) |
8433 | || (!NILP (fake_prefixed_keys) | |
8434 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8435 | { |
2cf066c3 GM |
8436 | /* We're looking a second time at an event for which |
8437 | we generated a fake prefix key. Set | |
7e85b935 RS |
8438 | last_real_key_start appropriately. */ |
8439 | if (t > 0) | |
8440 | last_real_key_start = t - 1; | |
cd21b839 | 8441 | } |
7e85b935 RS |
8442 | |
8443 | /* Key sequences beginning with mouse clicks are | |
8444 | read using the keymaps in the buffer clicked on, | |
8445 | not the current buffer. If we're at the | |
8446 | beginning of a key sequence, switch buffers. */ | |
8447 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8448 | && WINDOWP (window) |
8449 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8450 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8451 | { |
7d18f9ae | 8452 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8453 | keybuf[t] = key; |
8454 | mock_input = t + 1; | |
8455 | ||
8456 | /* Arrange to go back to the original buffer once we're | |
8457 | done reading the key sequence. Note that we can't | |
8458 | use save_excursion_{save,restore} here, because they | |
8459 | save point as well as the current buffer; we don't | |
8460 | want to save point, because redisplay may change it, | |
8461 | to accommodate a Fset_window_start or something. We | |
8462 | don't want to do this at the top of the function, | |
8463 | because we may get input from a subprocess which | |
8464 | wants to change the selected window and stuff (say, | |
8465 | emacsclient). */ | |
8466 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8467 | ||
788f89eb | 8468 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8469 | Fkill_emacs (Qnil); |
24a40fbb | 8470 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8471 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8472 | Qlocal_map); |
8473 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8474 | goto replay_sequence; |
0a7f1fc0 | 8475 | } |
7ee32cda | 8476 | |
e0dff5f6 RS |
8477 | /* For a mouse click, get the local text-property keymap |
8478 | of the place clicked on, rather than point. */ | |
7ee32cda | 8479 | if (last_real_key_start == 0 |
7539e11f | 8480 | && CONSP (XCDR (key)) |
e0dff5f6 | 8481 | && ! localized_local_map) |
5ec75a55 | 8482 | { |
e0dff5f6 RS |
8483 | Lisp_Object map_here, start, pos; |
8484 | ||
8485 | localized_local_map = 1; | |
8486 | start = EVENT_START (key); | |
7ee32cda | 8487 | |
7539e11f | 8488 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8489 | { |
8490 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8491 | if (INTEGERP (pos) |
8492 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8493 | { |
30690496 | 8494 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8495 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8496 | if (!EQ (map_here, orig_local_map)) |
8497 | { | |
8498 | orig_local_map = map_here; | |
8499 | keybuf[t] = key; | |
8500 | mock_input = t + 1; | |
5ec75a55 | 8501 | |
30690496 DL |
8502 | goto replay_sequence; |
8503 | } | |
8504 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8505 | current_buffer, Qkeymap); |
30690496 DL |
8506 | if (!EQ (map_here, orig_keymap)) |
8507 | { | |
8508 | orig_keymap = map_here; | |
8509 | keybuf[t] = key; | |
8510 | mock_input = t + 1; | |
8511 | ||
e0dff5f6 RS |
8512 | goto replay_sequence; |
8513 | } | |
8514 | } | |
8515 | } | |
8516 | } | |
8517 | ||
8518 | /* Expand mode-line and scroll-bar events into two events: | |
8519 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8520 | if (SYMBOLP (posn) |
8521 | && (NILP (fake_prefixed_keys) | |
8522 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8523 | { |
7e85b935 | 8524 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8525 | error ("Key sequence too long"); |
7ee32cda | 8526 | |
2dc00208 GM |
8527 | keybuf[t] = posn; |
8528 | keybuf[t + 1] = key; | |
8529 | mock_input = t + 2; | |
8530 | ||
8531 | /* Record that a fake prefix key has been generated | |
8532 | for KEY. Don't modify the event; this would | |
8533 | prevent proper action when the event is pushed | |
8534 | back tino unread-command-events. */ | |
8535 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); | |
7ee32cda GM |
8536 | |
8537 | /* If on a mode line string with a local keymap, | |
8538 | reconsider the key sequence with that keymap. */ | |
8539 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8540 | { | |
30690496 | 8541 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8542 | |
8543 | string = POSN_STRING (EVENT_START (key)); | |
8544 | pos = XCDR (string); | |
8545 | string = XCAR (string); | |
52e386c2 KR |
8546 | if (XINT (pos) >= 0 |
8547 | && XINT (pos) < XSTRING (string)->size) | |
30690496 DL |
8548 | { |
8549 | map = Fget_text_property (pos, Qlocal_map, string); | |
8550 | if (!NILP (map)) | |
8551 | orig_local_map = map; | |
8552 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8553 | if (!NILP (map2)) | |
8554 | orig_keymap = map2; | |
8555 | if (!NILP (map) || !NILP (map2)) | |
8556 | goto replay_sequence; | |
8557 | } | |
7ee32cda GM |
8558 | } |
8559 | ||
7e85b935 | 8560 | goto replay_key; |
5ec75a55 | 8561 | } |
db14cfc5 GM |
8562 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8563 | && NILP (from_string)) | |
8564 | { | |
8565 | /* For a click on a string, i.e. overlay string or a | |
8566 | string displayed via the `display' property, | |
8567 | consider `local-map' and `keymap' properties of | |
8568 | that string. */ | |
8569 | Lisp_Object string, pos, map, map2; | |
8570 | ||
8571 | string = POSN_STRING (EVENT_START (key)); | |
8572 | pos = XCDR (string); | |
8573 | string = XCAR (string); | |
8574 | if (XINT (pos) >= 0 | |
8575 | && XINT (pos) < XSTRING (string)->size) | |
8576 | { | |
8577 | map = Fget_text_property (pos, Qlocal_map, string); | |
8578 | if (!NILP (map)) | |
8579 | orig_local_map = map; | |
8580 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8581 | if (!NILP (map2)) | |
8582 | orig_keymap = map2; | |
8583 | ||
8584 | if (!NILP (map) || !NILP (map2)) | |
8585 | { | |
8586 | from_string = string; | |
8587 | goto replay_sequence; | |
8588 | } | |
8589 | } | |
8590 | } | |
0a7f1fc0 | 8591 | } |
7539e11f | 8592 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8593 | && CONSP (EVENT_START (key)) |
7539e11f | 8594 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8595 | { |
9b8eb840 | 8596 | Lisp_Object posn; |
7e85b935 | 8597 | |
9b8eb840 | 8598 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8599 | /* Handle menu-bar events: |
8600 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8601 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8602 | { |
8603 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8604 | error ("Key sequence too long"); |
7e85b935 RS |
8605 | keybuf[t] = posn; |
8606 | keybuf[t+1] = key; | |
8607 | ||
8608 | /* Zap the position in key, so we know that we've | |
8609 | expanded it, and don't try to do so again. */ | |
f3fbd155 KR |
8610 | POSN_BUFFER_SET_POSN (EVENT_START (key), |
8611 | Fcons (posn, Qnil)); | |
7e85b935 RS |
8612 | |
8613 | mock_input = t + 2; | |
8614 | goto replay_sequence; | |
8615 | } | |
8c18cbfb | 8616 | else if (CONSP (posn)) |
7e85b935 RS |
8617 | { |
8618 | /* We're looking at the second event of a | |
8619 | sequence which we expanded before. Set | |
8620 | last_real_key_start appropriately. */ | |
8621 | if (last_real_key_start == t && t > 0) | |
8622 | last_real_key_start = t - 1; | |
8623 | } | |
a6d53864 | 8624 | } |
284f4730 | 8625 | } |
f4255cd1 JB |
8626 | |
8627 | /* We have finally decided that KEY is something we might want | |
8628 | to look up. */ | |
284f4730 JB |
8629 | first_binding = (follow_key (key, |
8630 | nmaps - first_binding, | |
253598e4 | 8631 | submaps + first_binding, |
284f4730 | 8632 | defs + first_binding, |
4e50f26a | 8633 | submaps + first_binding) |
284f4730 | 8634 | + first_binding); |
0a7f1fc0 | 8635 | |
f4255cd1 | 8636 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
8637 | if (first_binding >= nmaps) |
8638 | { | |
9b8eb840 | 8639 | Lisp_Object head; |
7189cad8 SM |
8640 | |
8641 | /* Remember the position to put an upper bound on fkey_start. */ | |
8642 | first_unbound = min (t, first_unbound); | |
0a7f1fc0 | 8643 | |
9b8eb840 | 8644 | head = EVENT_HEAD (key); |
24736fbc | 8645 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
8646 | { |
8647 | read_key_sequence_cmd = Vprefix_help_command; | |
8648 | keybuf[t++] = key; | |
8649 | last_nonmenu_event = key; | |
bc536d84 RS |
8650 | /* The Microsoft C compiler can't handle the goto that |
8651 | would go here. */ | |
309b0fc8 | 8652 | dummyflag = 1; |
0d882d52 | 8653 | break; |
7e85b935 RS |
8654 | } |
8655 | ||
8c18cbfb | 8656 | if (SYMBOLP (head)) |
0a7f1fc0 | 8657 | { |
9b8eb840 KH |
8658 | Lisp_Object breakdown; |
8659 | int modifiers; | |
0a7f1fc0 | 8660 | |
9b8eb840 | 8661 | breakdown = parse_modifiers (head); |
7539e11f | 8662 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
8663 | /* Attempt to reduce an unbound mouse event to a simpler |
8664 | event that is bound: | |
8665 | Drags reduce to clicks. | |
8666 | Double-clicks reduce to clicks. | |
8667 | Triple-clicks reduce to double-clicks, then to clicks. | |
8668 | Down-clicks are eliminated. | |
8669 | Double-downs reduce to downs, then are eliminated. | |
8670 | Triple-downs reduce to double-downs, then to downs, | |
8671 | then are eliminated. */ | |
8672 | if (modifiers & (down_modifier | drag_modifier | |
8673 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 8674 | { |
559f9d04 RS |
8675 | while (modifiers & (down_modifier | drag_modifier |
8676 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
8677 | { |
8678 | Lisp_Object new_head, new_click; | |
8679 | if (modifiers & triple_modifier) | |
8680 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
8681 | else if (modifiers & double_modifier) |
8682 | modifiers &= ~double_modifier; | |
8683 | else if (modifiers & drag_modifier) | |
8684 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
8685 | else |
8686 | { | |
8687 | /* Dispose of this `down' event by simply jumping | |
8688 | back to replay_key, to get another event. | |
8689 | ||
8690 | Note that if this event came from mock input, | |
8691 | then just jumping back to replay_key will just | |
8692 | hand it to us again. So we have to wipe out any | |
8693 | mock input. | |
8694 | ||
8695 | We could delete keybuf[t] and shift everything | |
8696 | after that to the left by one spot, but we'd also | |
8697 | have to fix up any variable that points into | |
8698 | keybuf, and shifting isn't really necessary | |
8699 | anyway. | |
8700 | ||
8701 | Adding prefixes for non-textual mouse clicks | |
8702 | creates two characters of mock input, and both | |
8703 | must be thrown away. If we're only looking at | |
8704 | the prefix now, we can just jump back to | |
8705 | replay_key. On the other hand, if we've already | |
8706 | processed the prefix, and now the actual click | |
8707 | itself is giving us trouble, then we've lost the | |
8708 | state of the keymaps we want to backtrack to, and | |
8709 | we need to replay the whole sequence to rebuild | |
8710 | it. | |
8711 | ||
8712 | Beyond that, only function key expansion could | |
8713 | create more than two keys, but that should never | |
8714 | generate mouse events, so it's okay to zero | |
8715 | mock_input in that case too. | |
8716 | ||
8717 | Isn't this just the most wonderful code ever? */ | |
8718 | if (t == last_real_key_start) | |
8719 | { | |
8720 | mock_input = 0; | |
8721 | goto replay_key; | |
8722 | } | |
8723 | else | |
8724 | { | |
8725 | mock_input = last_real_key_start; | |
8726 | goto replay_sequence; | |
8727 | } | |
8728 | } | |
8729 | ||
27203ead | 8730 | new_head |
7539e11f | 8731 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
8732 | new_click |
8733 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
8734 | |
8735 | /* Look for a binding for this new key. follow_key | |
8736 | promises that it didn't munge submaps the | |
8737 | last time we called it, since key was unbound. */ | |
27203ead RS |
8738 | first_binding |
8739 | = (follow_key (new_click, | |
8740 | nmaps - local_first_binding, | |
8741 | submaps + local_first_binding, | |
8742 | defs + local_first_binding, | |
4e50f26a | 8743 | submaps + local_first_binding) |
27203ead | 8744 | + local_first_binding); |
fbcd35bd JB |
8745 | |
8746 | /* If that click is bound, go for it. */ | |
8747 | if (first_binding < nmaps) | |
8748 | { | |
8749 | key = new_click; | |
8750 | break; | |
8751 | } | |
8752 | /* Otherwise, we'll leave key set to the drag event. */ | |
8753 | } | |
0a7f1fc0 JB |
8754 | } |
8755 | } | |
8756 | } | |
8757 | ||
284f4730 | 8758 | keybuf[t++] = key; |
7d6de002 RS |
8759 | /* Normally, last_nonmenu_event gets the previous key we read. |
8760 | But when a mouse popup menu is being used, | |
8761 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8762 | event that preceded the first level of menu. */ | |
8763 | if (!used_mouse_menu) | |
8764 | last_nonmenu_event = key; | |
284f4730 | 8765 | |
6321824f RS |
8766 | /* Record what part of this_command_keys is the current key sequence. */ |
8767 | this_single_command_key_start = this_command_key_count - t; | |
8768 | ||
3fe8e9a2 RS |
8769 | prev_fkey_map = fkey_map; |
8770 | prev_fkey_start = fkey_start; | |
8771 | prev_fkey_end = fkey_end; | |
8772 | ||
8773 | prev_keytran_map = keytran_map; | |
8774 | prev_keytran_start = keytran_start; | |
8775 | prev_keytran_end = keytran_end; | |
8776 | ||
284f4730 | 8777 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
8778 | off the end of it. We only want to scan real keyboard input |
8779 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 8780 | re-reading old events, don't examine it. */ |
4e50f26a | 8781 | if (first_binding >= nmaps |
253598e4 | 8782 | && t >= mock_input) |
284f4730 JB |
8783 | { |
8784 | Lisp_Object fkey_next; | |
8785 | ||
e9bf89a0 RS |
8786 | /* Continue scan from fkey_end until we find a bound suffix. |
8787 | If we fail, increment fkey_start | |
8788 | and start fkey_end from there. */ | |
284f4730 JB |
8789 | while (fkey_end < t) |
8790 | { | |
f4255cd1 JB |
8791 | Lisp_Object key; |
8792 | ||
8793 | key = keybuf[fkey_end++]; | |
e74fbc70 | 8794 | fkey_next |
db785038 | 8795 | = access_keymap (fkey_map, key, 1, 0, 1); |
c700c260 RS |
8796 | |
8797 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8798 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8799 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 8800 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
8801 | do_autoload (XSYMBOL (fkey_next)->function, |
8802 | fkey_next); | |
c700c260 RS |
8803 | |
8804 | /* Handle a symbol whose function definition is a keymap | |
8805 | or an array. */ | |
0afc861b RS |
8806 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8807 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
02067692 | 8808 | || KEYMAPP (XSYMBOL (fkey_next)->function))) |
0afc861b | 8809 | fkey_next = XSYMBOL (fkey_next)->function; |
067ffa38 | 8810 | |
7a80a6f6 RS |
8811 | #if 0 /* I didn't turn this on, because it might cause trouble |
8812 | for the mapping of return into C-m and tab into C-i. */ | |
8813 | /* Optionally don't map function keys into other things. | |
8814 | This enables the user to redefine kp- keys easily. */ | |
8815 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8816 | fkey_next = Qnil; | |
8817 | #endif | |
8818 | ||
1abe6abe RS |
8819 | /* If the function key map gives a function, not an |
8820 | array, then call the function with no args and use | |
8821 | its value instead. */ | |
8822 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8823 | && fkey_end == t) | |
8824 | { | |
8825 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8826 | Lisp_Object tem; | |
8827 | tem = fkey_next; | |
8828 | ||
8829 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8830 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8831 | UNGCPRO; |
8832 | /* If the function returned something invalid, | |
8833 | barf--don't ignore it. | |
df0f2ba1 | 8834 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8835 | other variables.) */ |
8836 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8837 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8838 | } |
8839 | ||
e9bf89a0 RS |
8840 | function_key_possible = ! NILP (fkey_next); |
8841 | ||
85bc5181 | 8842 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8843 | function key map and it's a suffix of the current |
85bc5181 | 8844 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8845 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8846 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8847 | && fkey_end == t) |
8848 | { | |
2e864a76 | 8849 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8850 | |
8851 | t = fkey_start + len; | |
284f4730 | 8852 | if (t >= bufsize) |
3fe8e9a2 | 8853 | error ("Key sequence too long"); |
284f4730 | 8854 | |
f5ea6163 JB |
8855 | if (VECTORP (fkey_next)) |
8856 | bcopy (XVECTOR (fkey_next)->contents, | |
8857 | keybuf + fkey_start, | |
8858 | (t - fkey_start) * sizeof (keybuf[0])); | |
8859 | else if (STRINGP (fkey_next)) | |
8860 | { | |
8861 | int i; | |
8862 | ||
8863 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8864 | XSETFASTINT (keybuf[fkey_start + i], |
8865 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8866 | } |
df0f2ba1 | 8867 | |
284f4730 JB |
8868 | mock_input = t; |
8869 | fkey_start = fkey_end = t; | |
32e6d806 | 8870 | fkey_map = Vfunction_key_map; |
284f4730 | 8871 | |
3bd0dffb KH |
8872 | /* Do pass the results through key-translation-map. |
8873 | But don't retranslate what key-translation-map | |
8874 | has already translated. */ | |
8875 | keytran_end = keytran_start; | |
00a78037 RS |
8876 | keytran_map = Vkey_translation_map; |
8877 | ||
f4255cd1 | 8878 | goto replay_sequence; |
284f4730 | 8879 | } |
df0f2ba1 | 8880 | |
02067692 | 8881 | fkey_map = get_keymap (fkey_next, 0, 1); |
284f4730 | 8882 | |
df0f2ba1 | 8883 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8884 | fkey_start. */ |
02067692 | 8885 | if (!CONSP (fkey_map)) |
284f4730 JB |
8886 | { |
8887 | fkey_end = ++fkey_start; | |
8888 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8889 | function_key_possible = 0; |
284f4730 JB |
8890 | } |
8891 | } | |
8892 | } | |
a612e298 RS |
8893 | |
8894 | /* Look for this sequence in key-translation-map. */ | |
8895 | { | |
8896 | Lisp_Object keytran_next; | |
8897 | ||
8898 | /* Scan from keytran_end until we find a bound suffix. */ | |
8899 | while (keytran_end < t) | |
8900 | { | |
8901 | Lisp_Object key; | |
8902 | ||
8903 | key = keybuf[keytran_end++]; | |
a612e298 | 8904 | keytran_next |
db785038 | 8905 | = access_keymap (keytran_map, key, 1, 0, 1); |
a612e298 | 8906 | |
c700c260 | 8907 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8908 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8909 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8910 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8911 | do_autoload (XSYMBOL (keytran_next)->function, |
8912 | keytran_next); | |
8913 | ||
c700c260 RS |
8914 | /* Handle a symbol whose function definition is a keymap |
8915 | or an array. */ | |
e83f6bb0 | 8916 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 | 8917 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
02067692 | 8918 | || KEYMAPP (XSYMBOL (keytran_next)->function))) |
e83f6bb0 RS |
8919 | keytran_next = XSYMBOL (keytran_next)->function; |
8920 | ||
1abe6abe | 8921 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8922 | array, then call the function with one arg and use |
1abe6abe RS |
8923 | its value instead. */ |
8924 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8925 | && keytran_end == t) | |
8926 | { | |
8927 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8928 | Lisp_Object tem; | |
8929 | tem = keytran_next; | |
8930 | ||
40932d1a | 8931 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8932 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8933 | UNGCPRO; |
8934 | /* If the function returned something invalid, | |
8935 | barf--don't ignore it. | |
df0f2ba1 | 8936 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8937 | other variables.) */ |
8938 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8939 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8940 | } |
8941 | ||
00a78037 RS |
8942 | key_translation_possible = ! NILP (keytran_next); |
8943 | ||
a612e298 | 8944 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8945 | key translation map and it's a suffix of the current |
a612e298 RS |
8946 | sequence (i.e. keytran_end == t), replace it with |
8947 | the binding and restart with keytran_start at the end. */ | |
8948 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8949 | && keytran_end == t) | |
8950 | { | |
2e864a76 | 8951 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8952 | |
8953 | t = keytran_start + len; | |
8954 | if (t >= bufsize) | |
3fe8e9a2 | 8955 | error ("Key sequence too long"); |
a612e298 RS |
8956 | |
8957 | if (VECTORP (keytran_next)) | |
8958 | bcopy (XVECTOR (keytran_next)->contents, | |
8959 | keybuf + keytran_start, | |
8960 | (t - keytran_start) * sizeof (keybuf[0])); | |
8961 | else if (STRINGP (keytran_next)) | |
8962 | { | |
8963 | int i; | |
8964 | ||
8965 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8966 | XSETFASTINT (keybuf[keytran_start + i], |
8967 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8968 | } |
8969 | ||
8970 | mock_input = t; | |
8971 | keytran_start = keytran_end = t; | |
8972 | keytran_map = Vkey_translation_map; | |
8973 | ||
00a78037 RS |
8974 | /* Don't pass the results of key-translation-map |
8975 | through function-key-map. */ | |
8976 | fkey_start = fkey_end = t; | |
3bd0dffb | 8977 | fkey_map = Vfunction_key_map; |
00a78037 | 8978 | |
a612e298 RS |
8979 | goto replay_sequence; |
8980 | } | |
8981 | ||
02067692 | 8982 | keytran_map = get_keymap (keytran_next, 0, 1); |
a612e298 | 8983 | |
df0f2ba1 | 8984 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 | 8985 | keytran_start. */ |
02067692 | 8986 | if (!CONSP (keytran_map)) |
a612e298 RS |
8987 | { |
8988 | keytran_end = ++keytran_start; | |
8989 | keytran_map = Vkey_translation_map; | |
00a78037 | 8990 | key_translation_possible = 0; |
a612e298 RS |
8991 | } |
8992 | } | |
8993 | } | |
4e50f26a RS |
8994 | |
8995 | /* If KEY is not defined in any of the keymaps, | |
8996 | and cannot be part of a function key or translation, | |
8997 | and is an upper case letter | |
8998 | use the corresponding lower-case letter instead. */ | |
8999 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 9000 | && ! key_translation_possible |
8c18cbfb | 9001 | && INTEGERP (key) |
4e50f26a | 9002 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9003 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9004 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9005 | || (XINT (key) & shift_modifier))) | |
9006 | { | |
569871d2 | 9007 | Lisp_Object new_key; |
569871d2 | 9008 | |
309b0fc8 RS |
9009 | original_uppercase = key; |
9010 | original_uppercase_position = t - 1; | |
9011 | ||
831f35a2 | 9012 | if (XINT (key) & shift_modifier) |
569871d2 | 9013 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9014 | else |
569871d2 RS |
9015 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9016 | | (XINT (key) & ~0x3ffff))); | |
9017 | ||
3fe8e9a2 RS |
9018 | /* We have to do this unconditionally, regardless of whether |
9019 | the lower-case char is defined in the keymaps, because they | |
9020 | might get translated through function-key-map. */ | |
9021 | keybuf[t - 1] = new_key; | |
9022 | mock_input = t; | |
9023 | ||
9024 | fkey_map = prev_fkey_map; | |
9025 | fkey_start = prev_fkey_start; | |
9026 | fkey_end = prev_fkey_end; | |
9027 | ||
9028 | keytran_map = prev_keytran_map; | |
9029 | keytran_start = prev_keytran_start; | |
9030 | keytran_end = prev_keytran_end; | |
9031 | ||
9032 | goto replay_sequence; | |
4e50f26a | 9033 | } |
ef8fd672 RS |
9034 | /* If KEY is not defined in any of the keymaps, |
9035 | and cannot be part of a function key or translation, | |
9036 | and is a shifted function key, | |
9037 | use the corresponding unshifted function key instead. */ | |
9038 | if (first_binding == nmaps && ! function_key_possible | |
9039 | && ! key_translation_possible | |
9040 | && SYMBOLP (key)) | |
9041 | { | |
9042 | Lisp_Object breakdown; | |
9043 | int modifiers; | |
9044 | ||
9045 | breakdown = parse_modifiers (key); | |
7539e11f | 9046 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9047 | if (modifiers & shift_modifier) |
9048 | { | |
569871d2 | 9049 | Lisp_Object new_key; |
3fe8e9a2 RS |
9050 | |
9051 | original_uppercase = key; | |
9052 | original_uppercase_position = t - 1; | |
ef8fd672 | 9053 | |
569871d2 RS |
9054 | modifiers &= ~shift_modifier; |
9055 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9056 | XCAR (breakdown)); |
569871d2 | 9057 | |
3fe8e9a2 RS |
9058 | keybuf[t - 1] = new_key; |
9059 | mock_input = t; | |
9060 | ||
9061 | fkey_map = prev_fkey_map; | |
9062 | fkey_start = prev_fkey_start; | |
9063 | fkey_end = prev_fkey_end; | |
9064 | ||
9065 | keytran_map = prev_keytran_map; | |
9066 | keytran_start = prev_keytran_start; | |
9067 | keytran_end = prev_keytran_end; | |
9068 | ||
9069 | goto replay_sequence; | |
ef8fd672 RS |
9070 | } |
9071 | } | |
284f4730 JB |
9072 | } |
9073 | ||
309b0fc8 | 9074 | if (!dummyflag) |
bc536d84 RS |
9075 | read_key_sequence_cmd = (first_binding < nmaps |
9076 | ? defs[first_binding] | |
9077 | : Qnil); | |
284f4730 | 9078 | |
cd21b839 | 9079 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9080 | unbind_to (count, Qnil); |
07f76a14 | 9081 | |
3fe8e9a2 RS |
9082 | /* Don't downcase the last character if the caller says don't. |
9083 | Don't downcase it if the result is undefined, either. */ | |
9084 | if ((dont_downcase_last || first_binding >= nmaps) | |
9085 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9086 | keybuf[t - 1] = original_uppercase; |
9087 | ||
07f76a14 JB |
9088 | /* Occasionally we fabricate events, perhaps by expanding something |
9089 | according to function-key-map, or by adding a prefix symbol to a | |
9090 | mouse click in the scroll bar or modeline. In this cases, return | |
9091 | the entire generated key sequence, even if we hit an unbound | |
9092 | prefix or a definition before the end. This means that you will | |
9093 | be able to push back the event properly, and also means that | |
9094 | read-key-sequence will always return a logical unit. | |
9095 | ||
9096 | Better ideas? */ | |
cca310da JB |
9097 | for (; t < mock_input; t++) |
9098 | { | |
f2647d04 DL |
9099 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9100 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9101 | echo_char (keybuf[t]); |
cca310da JB |
9102 | add_command_key (keybuf[t]); |
9103 | } | |
07f76a14 | 9104 | |
7d18f9ae RS |
9105 | |
9106 | ||
2dc00208 | 9107 | UNGCPRO; |
284f4730 JB |
9108 | return t; |
9109 | } | |
9110 | ||
d5eecefb | 9111 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9112 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9113 | The sequence is sufficient to specify a non-prefix command in the | |
9114 | current local and global maps. | |
9115 | ||
9116 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9117 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9118 | as a continuation of the previous key. | |
9119 | ||
9120 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9121 | convert the last event to lower case. (Normally any upper case event | |
9122 | is converted to lower case if the original event is undefined and the lower | |
9123 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9124 | a key sequence to be defined. | |
9125 | ||
9126 | A C-g typed while in this function is treated like any other character, | |
9127 | and `quit-flag' is not set. | |
9128 | ||
9129 | If the key sequence starts with a mouse click, then the sequence is read | |
9130 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9131 | of the selected window as normal. | |
9132 | ||
9133 | `read-key-sequence' drops unbound button-down events, since you normally | |
9134 | only care about the click or drag events which follow them. If a drag | |
9135 | or multi-click event is unbound, but the corresponding click event would | |
9136 | be bound, `read-key-sequence' turns the event into a click event at the | |
9137 | drag's starting position. This means that you don't have to distinguish | |
9138 | between click and drag, double, or triple events unless you want to. | |
9139 | ||
9140 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9141 | lines separating windows, and scroll bars with imaginary keys | |
9142 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9143 | ||
9144 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9145 | function will process a switch-frame event if the user switches frames | |
9146 | before typing anything. If the user switches frames in the middle of a | |
9147 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9148 | is nil, then the event will be put off until after the current key sequence. | |
9149 | ||
9150 | `read-key-sequence' checks `function-key-map' for function key | |
9151 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9152 | `function-key-map' for more details. | |
9153 | ||
9154 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9155 | that this key sequence is being read by something that will | |
9156 | read commands one after another. It should be nil if the caller | |
9157 | will read just one key sequence. */) | |
d5eecefb RS |
9158 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9159 | command_loop) | |
309b0fc8 | 9160 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9161 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9162 | { |
9163 | Lisp_Object keybuf[30]; | |
9164 | register int i; | |
03cee6ae | 9165 | struct gcpro gcpro1; |
d5eecefb | 9166 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
9167 | |
9168 | if (!NILP (prompt)) | |
b7826503 | 9169 | CHECK_STRING (prompt); |
284f4730 JB |
9170 | QUIT; |
9171 | ||
d5eecefb RS |
9172 | specbind (Qinput_method_exit_on_first_char, |
9173 | (NILP (command_loop) ? Qt : Qnil)); | |
9174 | specbind (Qinput_method_use_echo_area, | |
9175 | (NILP (command_loop) ? Qt : Qnil)); | |
9176 | ||
284f4730 JB |
9177 | bzero (keybuf, sizeof keybuf); |
9178 | GCPRO1 (keybuf[0]); | |
9179 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9180 | ||
daa37602 | 9181 | if (NILP (continue_echo)) |
6321824f RS |
9182 | { |
9183 | this_command_key_count = 0; | |
9184 | this_single_command_key_start = 0; | |
9185 | } | |
c0a58692 | 9186 | |
d0c48478 | 9187 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9188 | if (display_hourglass_p) |
9189 | cancel_hourglass (); | |
d0c48478 GM |
9190 | #endif |
9191 | ||
309b0fc8 | 9192 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9193 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9194 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9195 | |
ae18aa3b | 9196 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9197 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9198 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9199 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9200 | if (display_hourglass_p) |
9201 | start_hourglass (); | |
ae18aa3b | 9202 | #endif |
d0c48478 GM |
9203 | #endif |
9204 | ||
dcc408a0 RS |
9205 | if (i == -1) |
9206 | { | |
9207 | Vquit_flag = Qt; | |
9208 | QUIT; | |
9209 | } | |
284f4730 | 9210 | UNGCPRO; |
d5eecefb | 9211 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9212 | } |
e39da3d7 RS |
9213 | |
9214 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9215 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9216 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9217 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9218 | command_loop) | |
e39da3d7 | 9219 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9220 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9221 | { |
9222 | Lisp_Object keybuf[30]; | |
9223 | register int i; | |
03cee6ae | 9224 | struct gcpro gcpro1; |
d5eecefb | 9225 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
9226 | |
9227 | if (!NILP (prompt)) | |
b7826503 | 9228 | CHECK_STRING (prompt); |
e39da3d7 RS |
9229 | QUIT; |
9230 | ||
d5eecefb RS |
9231 | specbind (Qinput_method_exit_on_first_char, |
9232 | (NILP (command_loop) ? Qt : Qnil)); | |
9233 | specbind (Qinput_method_use_echo_area, | |
9234 | (NILP (command_loop) ? Qt : Qnil)); | |
9235 | ||
e39da3d7 RS |
9236 | bzero (keybuf, sizeof keybuf); |
9237 | GCPRO1 (keybuf[0]); | |
9238 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9239 | ||
9240 | if (NILP (continue_echo)) | |
9241 | { | |
9242 | this_command_key_count = 0; | |
9243 | this_single_command_key_start = 0; | |
9244 | } | |
9245 | ||
d0c48478 | 9246 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9247 | if (display_hourglass_p) |
9248 | cancel_hourglass (); | |
d0c48478 GM |
9249 | #endif |
9250 | ||
e39da3d7 RS |
9251 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9252 | prompt, ! NILP (dont_downcase_last), | |
9253 | ! NILP (can_return_switch_frame), 0); | |
9254 | ||
d0c48478 | 9255 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9256 | if (display_hourglass_p) |
9257 | start_hourglass (); | |
d0c48478 GM |
9258 | #endif |
9259 | ||
e39da3d7 RS |
9260 | if (i == -1) |
9261 | { | |
9262 | Vquit_flag = Qt; | |
9263 | QUIT; | |
9264 | } | |
9265 | UNGCPRO; | |
d5eecefb | 9266 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9267 | } |
284f4730 | 9268 | \f |
158f7532 | 9269 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9270 | doc: /* Execute CMD as an editor command. |
9271 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9272 | Optional second arg RECORD-FLAG non-nil | |
9273 | means unconditionally put this command in `command-history'. | |
9274 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9275 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9276 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9277 | The argument SPECIAL, if non-nil, means that this command is executing | |
9278 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9279 | (cmd, record_flag, keys, special) |
9280 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9281 | { |
9282 | register Lisp_Object final; | |
9283 | register Lisp_Object tem; | |
9284 | Lisp_Object prefixarg; | |
9285 | struct backtrace backtrace; | |
9286 | extern int debug_on_next_call; | |
9287 | ||
284f4730 JB |
9288 | debug_on_next_call = 0; |
9289 | ||
158f7532 RS |
9290 | if (NILP (special)) |
9291 | { | |
9292 | prefixarg = current_kboard->Vprefix_arg; | |
9293 | Vcurrent_prefix_arg = prefixarg; | |
9294 | current_kboard->Vprefix_arg = Qnil; | |
9295 | } | |
9296 | else | |
9297 | prefixarg = Qnil; | |
9298 | ||
8c18cbfb | 9299 | if (SYMBOLP (cmd)) |
284f4730 JB |
9300 | { |
9301 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9302 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9303 | { |
9304 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9305 | if (!NILP (tem)) | |
9306 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9307 | } | |
284f4730 JB |
9308 | } |
9309 | ||
01e26217 | 9310 | while (1) |
284f4730 | 9311 | { |
ffd56f97 | 9312 | final = Findirect_function (cmd); |
284f4730 JB |
9313 | |
9314 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9315 | { |
9316 | struct gcpro gcpro1, gcpro2; | |
9317 | ||
9318 | GCPRO2 (cmd, prefixarg); | |
9319 | do_autoload (final, cmd); | |
9320 | UNGCPRO; | |
9321 | } | |
284f4730 JB |
9322 | else |
9323 | break; | |
9324 | } | |
9325 | ||
8c18cbfb | 9326 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9327 | { |
9328 | /* If requested, place the macro in the command history. For | |
9329 | other sorts of commands, call-interactively takes care of | |
9330 | this. */ | |
e57d8fd8 | 9331 | if (!NILP (record_flag)) |
f4385381 RS |
9332 | { |
9333 | Vcommand_history | |
9334 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9335 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9336 | Vcommand_history); | |
9337 | ||
9338 | /* Don't keep command history around forever. */ | |
9339 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9340 | { | |
9341 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9342 | if (CONSP (tem)) | |
f3fbd155 | 9343 | XSETCDR (tem, Qnil); |
f4385381 RS |
9344 | } |
9345 | } | |
284f4730 JB |
9346 | |
9347 | return Fexecute_kbd_macro (final, prefixarg); | |
9348 | } | |
f4385381 | 9349 | |
8c18cbfb | 9350 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9351 | { |
9352 | backtrace.next = backtrace_list; | |
9353 | backtrace_list = &backtrace; | |
9354 | backtrace.function = &Qcall_interactively; | |
9355 | backtrace.args = &cmd; | |
9356 | backtrace.nargs = 1; | |
9357 | backtrace.evalargs = 0; | |
9358 | ||
e57d8fd8 | 9359 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9360 | |
9361 | backtrace_list = backtrace.next; | |
9362 | return tem; | |
9363 | } | |
9364 | return Qnil; | |
9365 | } | |
c970a760 GM |
9366 | |
9367 | ||
284f4730 | 9368 | \f |
284f4730 | 9369 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9370 | 1, 1, "P", |
9371 | doc: /* Read function name, then read its arguments and call it. */) | |
9372 | (prefixarg) | |
284f4730 JB |
9373 | Lisp_Object prefixarg; |
9374 | { | |
9375 | Lisp_Object function; | |
9376 | char buf[40]; | |
9377 | Lisp_Object saved_keys; | |
5434fce6 | 9378 | Lisp_Object bindings, value; |
214360e9 | 9379 | struct gcpro gcpro1, gcpro2; |
284f4730 | 9380 | |
b0f2a7bf KH |
9381 | saved_keys = Fvector (this_command_key_count, |
9382 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 9383 | buf[0] = 0; |
fde7aff8 | 9384 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
9385 | |
9386 | if (EQ (prefixarg, Qminus)) | |
9387 | strcpy (buf, "- "); | |
7539e11f | 9388 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9389 | strcpy (buf, "C-u "); |
7539e11f | 9390 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9391 | { |
9392 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9393 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9394 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9395 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9396 | else |
9397 | abort (); | |
9398 | } | |
8c18cbfb | 9399 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9400 | { |
9401 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9402 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9403 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9404 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9405 | else |
9406 | abort (); | |
9407 | } | |
284f4730 JB |
9408 | |
9409 | /* This isn't strictly correct if execute-extended-command | |
9410 | is bound to anything else. Perhaps it should use | |
9411 | this_command_keys? */ | |
9412 | strcat (buf, "M-x "); | |
9413 | ||
9414 | /* Prompt with buf, and then read a string, completing from and | |
9415 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9416 | any initial input. Save the command read on the extended-command |
03b4122a | 9417 | history list. */ |
284f4730 JB |
9418 | function = Fcompleting_read (build_string (buf), |
9419 | Vobarray, Qcommandp, | |
4328577a KH |
9420 | Qt, Qnil, Qextended_command_history, Qnil, |
9421 | Qnil); | |
284f4730 | 9422 | |
1f5b1641 RS |
9423 | if (STRINGP (function) && XSTRING (function)->size == 0) |
9424 | error ("No command name given"); | |
9425 | ||
1113d9db JB |
9426 | /* Set this_command_keys to the concatenation of saved_keys and |
9427 | function, followed by a RET. */ | |
284f4730 | 9428 | { |
1113d9db | 9429 | struct Lisp_String *str; |
b0f2a7bf | 9430 | Lisp_Object *keys; |
284f4730 | 9431 | int i; |
284f4730 | 9432 | |
1113d9db | 9433 | this_command_key_count = 0; |
6321824f | 9434 | this_single_command_key_start = 0; |
1113d9db | 9435 | |
b0f2a7bf KH |
9436 | keys = XVECTOR (saved_keys)->contents; |
9437 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9438 | add_command_key (keys[i]); | |
1113d9db JB |
9439 | |
9440 | str = XSTRING (function); | |
9441 | for (i = 0; i < str->size; i++) | |
301738ed | 9442 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9443 | |
301738ed | 9444 | add_command_key (make_number ('\015')); |
284f4730 JB |
9445 | } |
9446 | ||
9447 | UNGCPRO; | |
9448 | ||
0a7f1fc0 | 9449 | function = Fintern (function, Qnil); |
d8bcf58e | 9450 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9451 | Vthis_command = function; |
9452 | real_this_command = function; | |
284f4730 | 9453 | |
6526ab49 RS |
9454 | /* If enabled, show which key runs this command. */ |
9455 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9456 | && NILP (Vexecuting_macro) |
6526ab49 | 9457 | && SYMBOLP (function)) |
5434fce6 | 9458 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9459 | Qt, Qnil, Qnil); |
5434fce6 RS |
9460 | else |
9461 | bindings = Qnil; | |
6526ab49 | 9462 | |
5434fce6 RS |
9463 | value = Qnil; |
9464 | GCPRO2 (bindings, value); | |
9465 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9466 | |
5434fce6 | 9467 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9468 | if (!NILP (bindings) |
ee112567 KH |
9469 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9470 | Qmouse_movement))) | |
5434fce6 RS |
9471 | { |
9472 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9473 | int delay_time; |
985f9f66 | 9474 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9475 | /* This command displayed something in the echo area; |
9476 | so wait a few seconds, then display our suggestion message. */ | |
9477 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9478 | ? XINT (Vsuggest_key_bindings) : 2); | |
9479 | else | |
9480 | /* This command left the echo area empty, | |
9481 | so display our message immediately. */ | |
9482 | delay_time = 0; | |
9483 | ||
9484 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9485 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9486 | { |
5434fce6 RS |
9487 | Lisp_Object binding; |
9488 | char *newmessage; | |
985f9f66 | 9489 | int message_p = push_message (); |
c970a760 | 9490 | int count = BINDING_STACK_SIZE (); |
5434fce6 | 9491 | |
c970a760 | 9492 | record_unwind_protect (push_message_unwind, Qnil); |
5434fce6 RS |
9493 | binding = Fkey_description (bindings); |
9494 | ||
9495 | newmessage | |
9496 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 9497 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 9498 | + 100); |
3ababa60 | 9499 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 9500 | XSYMBOL (function)->name->data, |
5434fce6 | 9501 | XSTRING (binding)->data); |
301738ed RS |
9502 | message2_nolog (newmessage, |
9503 | strlen (newmessage), | |
9504 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9505 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9506 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9507 | Qnil, Qnil)) |
9508 | && message_p) | |
9509 | restore_message (); | |
9510 | ||
c970a760 | 9511 | unbind_to (count, Qnil); |
6526ab49 RS |
9512 | } |
9513 | } | |
9514 | ||
5434fce6 | 9515 | RETURN_UNGCPRO (value); |
284f4730 | 9516 | } |
6526ab49 | 9517 | |
284f4730 | 9518 | \f |
d9d4c147 | 9519 | /* Return nonzero if input events are pending. */ |
284f4730 | 9520 | |
dfcf069d | 9521 | int |
284f4730 JB |
9522 | detect_input_pending () |
9523 | { | |
9524 | if (!input_pending) | |
d9d4c147 KH |
9525 | get_input_pending (&input_pending, 0); |
9526 | ||
9527 | return input_pending; | |
9528 | } | |
9529 | ||
b1878f45 | 9530 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9531 | |
dfcf069d | 9532 | int |
87dd9b9b RS |
9533 | detect_input_pending_run_timers (do_display) |
9534 | int do_display; | |
d9d4c147 | 9535 | { |
87dd9b9b RS |
9536 | int old_timers_run = timers_run; |
9537 | ||
d9d4c147 KH |
9538 | if (!input_pending) |
9539 | get_input_pending (&input_pending, 1); | |
284f4730 | 9540 | |
87dd9b9b | 9541 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9542 | { |
3007ebfb | 9543 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9544 | /* The following fixes a bug when using lazy-lock with |
9545 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9546 | from an idle timer function. The symptom of the bug is that | |
9547 | the cursor sometimes doesn't become visible until the next X | |
9548 | event is processed. --gerd. */ | |
9549 | if (rif) | |
9550 | rif->flush_display (NULL); | |
9551 | } | |
87dd9b9b | 9552 | |
284f4730 JB |
9553 | return input_pending; |
9554 | } | |
9555 | ||
ffd56f97 JB |
9556 | /* This is called in some cases before a possible quit. |
9557 | It cases the next call to detect_input_pending to recompute input_pending. | |
9558 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9559 | |
9560 | void | |
ffd56f97 JB |
9561 | clear_input_pending () |
9562 | { | |
9563 | input_pending = 0; | |
9564 | } | |
9565 | ||
b1878f45 RS |
9566 | /* Return nonzero if there are pending requeued events. |
9567 | This isn't used yet. The hope is to make wait_reading_process_input | |
27fd22dc | 9568 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9569 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9570 | to do in that case. It isn't trivial. */ | |
9571 | ||
dfcf069d | 9572 | int |
b1878f45 RS |
9573 | requeued_events_pending_p () |
9574 | { | |
9575 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9576 | } | |
9577 | ||
9578 | ||
284f4730 | 9579 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9580 | doc: /* Return t if command input is currently available with no wait. |
9581 | Actually, the value is nil only if we can be sure that no input is available; | |
9582 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9583 | () |
284f4730 | 9584 | { |
24597608 | 9585 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9586 | return (Qt); |
9587 | ||
d9d4c147 KH |
9588 | get_input_pending (&input_pending, 1); |
9589 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
9590 | } |
9591 | ||
9592 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
9593 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
9594 | () | |
284f4730 | 9595 | { |
5160df46 | 9596 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9597 | Lisp_Object val; |
9598 | ||
9599 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9600 | return Fvector (total_keys, keys); |
284f4730 JB |
9601 | else |
9602 | { | |
5160df46 JB |
9603 | val = Fvector (NUM_RECENT_KEYS, keys); |
9604 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9605 | XVECTOR (val)->contents, |
9606 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9607 | bcopy (keys, |
284f4730 JB |
9608 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9609 | recent_keys_index * sizeof (Lisp_Object)); | |
9610 | return val; | |
9611 | } | |
9612 | } | |
9613 | ||
9614 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 9615 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
9616 | However, if the command has called `read-key-sequence', it returns |
9617 | the the last key sequence that has been read. | |
4707d2d0 PJ |
9618 | The value is a string or a vector. */) |
9619 | () | |
284f4730 | 9620 | { |
86e5706b RS |
9621 | return make_event_array (this_command_key_count, |
9622 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9623 | } |
9624 | ||
e39da3d7 | 9625 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
9626 | doc: /* Return the key sequence that invoked this command, as a vector. |
9627 | However, if the command has called `read-key-sequence', it returns | |
9628 | the the last key sequence that has been read. */) | |
4707d2d0 | 9629 | () |
e39da3d7 RS |
9630 | { |
9631 | return Fvector (this_command_key_count, | |
9632 | XVECTOR (this_command_keys)->contents); | |
9633 | } | |
9634 | ||
6321824f RS |
9635 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9636 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 9637 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
9638 | More generally, it returns the last key sequence read, either by |
9639 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9640 | Unlike `this-command-keys', this function's value |
9641 | does not include prefix arguments. | |
9642 | The value is always a vector. */) | |
9643 | () | |
6321824f | 9644 | { |
e39da3d7 RS |
9645 | return Fvector (this_command_key_count |
9646 | - this_single_command_key_start, | |
9647 | (XVECTOR (this_command_keys)->contents | |
9648 | + this_single_command_key_start)); | |
6321824f RS |
9649 | } |
9650 | ||
7d18f9ae RS |
9651 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9652 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 9653 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
9654 | More generally, it returns the last key sequence read, either by |
9655 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9656 | Unlike `this-single-command-keys', this function's value |
9657 | shows the events before all translations (except for input methods). | |
9658 | The value is always a vector. */) | |
9659 | () | |
7d18f9ae RS |
9660 | { |
9661 | return Fvector (raw_keybuf_count, | |
9662 | (XVECTOR (raw_keybuf)->contents)); | |
9663 | } | |
9664 | ||
71918b75 | 9665 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 PJ |
9666 | Sreset_this_command_lengths, 0, 0, 0, |
9667 | doc: /* Used for complicated reasons in `universal-argument-other-key'. | |
9668 | ||
9669 | `universal-argument-other-key' rereads the event just typed. | |
9670 | It then gets translated through `function-key-map'. | |
9671 | The translated event gets included in the echo area and in | |
9672 | the value of `this-command-keys' in addition to the raw original event. | |
9673 | That is not right. | |
9674 | ||
9675 | Calling this function directs the translated event to replace | |
9676 | the original event, so that only one version of the event actually | |
9677 | appears in the echo area and in the value of `this-command-keys'. */) | |
9678 | () | |
71918b75 RS |
9679 | { |
9680 | before_command_restore_flag = 1; | |
9681 | before_command_key_count_1 = before_command_key_count; | |
9682 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9683 | return Qnil; |
71918b75 RS |
9684 | } |
9685 | ||
82e6e5af | 9686 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
4707d2d0 PJ |
9687 | Sclear_this_command_keys, 0, 0, 0, |
9688 | doc: /* Clear out the vector that `this-command-keys' returns. | |
92501652 | 9689 | Also clear the record of the last 100 events. */) |
4707d2d0 | 9690 | () |
82e6e5af | 9691 | { |
fb0dde6c GM |
9692 | int i; |
9693 | ||
82e6e5af | 9694 | this_command_key_count = 0; |
fb0dde6c GM |
9695 | |
9696 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9697 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9698 | total_keys = 0; | |
9699 | recent_keys_index = 0; | |
82e6e5af RS |
9700 | return Qnil; |
9701 | } | |
9702 | ||
284f4730 | 9703 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
9704 | doc: /* Return the current depth in recursive edits. */) |
9705 | () | |
284f4730 JB |
9706 | { |
9707 | Lisp_Object temp; | |
bb9e9bed | 9708 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9709 | return temp; |
9710 | } | |
9711 | ||
9712 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
9713 | "FOpen dribble file: ", |
9714 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
9715 | If FILE is nil, close any open dribble file. */) | |
9716 | (file) | |
284f4730 JB |
9717 | Lisp_Object file; |
9718 | { | |
6cb52def | 9719 | if (dribble) |
284f4730 | 9720 | { |
6cb52def KH |
9721 | fclose (dribble); |
9722 | dribble = 0; | |
284f4730 | 9723 | } |
6cb52def | 9724 | if (!NILP (file)) |
284f4730 JB |
9725 | { |
9726 | file = Fexpand_file_name (file, Qnil); | |
9727 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
9728 | if (dribble == 0) |
9729 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9730 | } |
9731 | return Qnil; | |
9732 | } | |
9733 | ||
9734 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 PJ |
9735 | doc: /* Discard the contents of the terminal input buffer. |
9736 | Also cancel any kbd macro being defined. */) | |
9737 | () | |
284f4730 | 9738 | { |
c5fdd383 | 9739 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9740 | update_mode_lines++; |
9741 | ||
24597608 | 9742 | Vunread_command_events = Qnil; |
86e5706b | 9743 | unread_command_char = -1; |
284f4730 JB |
9744 | |
9745 | discard_tty_input (); | |
9746 | ||
7ee32cda | 9747 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 9748 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
9749 | input_pending = 0; |
9750 | ||
9751 | return Qnil; | |
9752 | } | |
9753 | \f | |
9754 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
9755 | doc: /* Stop Emacs and return to superior process. You can resume later. |
9756 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
9757 | control, run a subshell instead. | |
9758 | ||
9759 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
9760 | to be read as terminal input by Emacs's parent, after suspension. | |
9761 | ||
9762 | Before suspending, run the normal hook `suspend-hook'. | |
9763 | After resumption run the normal hook `suspend-resume-hook'. | |
9764 | ||
9765 | Some operating systems cannot stop the Emacs process and resume it later. | |
9766 | On such systems, Emacs starts a subshell instead of suspending. */) | |
9767 | (stuffstring) | |
284f4730 JB |
9768 | Lisp_Object stuffstring; |
9769 | { | |
284f4730 JB |
9770 | int count = specpdl_ptr - specpdl; |
9771 | int old_height, old_width; | |
9772 | int width, height; | |
03cee6ae | 9773 | struct gcpro gcpro1; |
284f4730 JB |
9774 | |
9775 | if (!NILP (stuffstring)) | |
b7826503 | 9776 | CHECK_STRING (stuffstring); |
284f4730 | 9777 | |
1e95ed28 JB |
9778 | /* Run the functions in suspend-hook. */ |
9779 | if (!NILP (Vrun_hooks)) | |
9780 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9781 | |
b7d2ebbf | 9782 | GCPRO1 (stuffstring); |
ff11dfa1 | 9783 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9784 | reset_sys_modes (); |
9785 | /* sys_suspend can get an error if it tries to fork a subshell | |
9786 | and the system resources aren't available for that. */ | |
91a0da02 | 9787 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9788 | Qnil); |
284f4730 | 9789 | stuff_buffered_input (stuffstring); |
8026024c KH |
9790 | if (cannot_suspend) |
9791 | sys_subshell (); | |
9792 | else | |
9793 | sys_suspend (); | |
284f4730 JB |
9794 | unbind_to (count, Qnil); |
9795 | ||
9796 | /* Check if terminal/window size has changed. | |
9797 | Note that this is not useful when we are running directly | |
9798 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9799 | get_frame_size (&width, &height); |
284f4730 | 9800 | if (width != old_width || height != old_height) |
788f89eb | 9801 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9802 | |
1e95ed28 | 9803 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9804 | if (!NILP (Vrun_hooks)) |
9805 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9806 | |
284f4730 JB |
9807 | UNGCPRO; |
9808 | return Qnil; | |
9809 | } | |
9810 | ||
9811 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9812 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9813 | |
07a59269 | 9814 | void |
284f4730 JB |
9815 | stuff_buffered_input (stuffstring) |
9816 | Lisp_Object stuffstring; | |
9817 | { | |
284f4730 | 9818 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9819 | #ifdef BSD_SYSTEM |
284f4730 | 9820 | #ifndef BSD4_1 |
612b78ef | 9821 | register unsigned char *p; |
612b78ef | 9822 | |
8c18cbfb | 9823 | if (STRINGP (stuffstring)) |
284f4730 JB |
9824 | { |
9825 | register int count; | |
9826 | ||
9827 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9828 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9829 | while (count-- > 0) |
9830 | stuff_char (*p++); | |
9831 | stuff_char ('\n'); | |
9832 | } | |
da8f7368 | 9833 | |
284f4730 | 9834 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 9835 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9836 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9837 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9838 | { |
da8f7368 GM |
9839 | int idx; |
9840 | ||
beecf6a1 KH |
9841 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9842 | kbd_fetch_ptr = kbd_buffer; | |
9843 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9844 | stuff_char (kbd_fetch_ptr->code); | |
da8f7368 | 9845 | |
beecf6a1 | 9846 | kbd_fetch_ptr->kind = no_event; |
da8f7368 GM |
9847 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
9848 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
9849 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 9850 | } |
da8f7368 | 9851 | |
284f4730 JB |
9852 | input_pending = 0; |
9853 | #endif | |
6df54671 | 9854 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9855 | } |
9856 | \f | |
dfcf069d | 9857 | void |
ffd56f97 JB |
9858 | set_waiting_for_input (time_to_clear) |
9859 | EMACS_TIME *time_to_clear; | |
284f4730 | 9860 | { |
ffd56f97 | 9861 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9862 | |
9863 | /* Tell interrupt_signal to throw back to read_char, */ | |
9864 | waiting_for_input = 1; | |
9865 | ||
9866 | /* If interrupt_signal was called before and buffered a C-g, | |
9867 | make it run again now, to avoid timing error. */ | |
9868 | if (!NILP (Vquit_flag)) | |
9869 | quit_throw_to_read_char (); | |
284f4730 JB |
9870 | } |
9871 | ||
07a59269 | 9872 | void |
284f4730 JB |
9873 | clear_waiting_for_input () |
9874 | { | |
9875 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9876 | waiting_for_input = 0; | |
ffd56f97 | 9877 | input_available_clear_time = 0; |
284f4730 JB |
9878 | } |
9879 | ||
27fd22dc | 9880 | /* This routine is called at interrupt level in response to C-g. |
d4e68eea GM |
9881 | |
9882 | If interrupt_input, this is the handler for SIGINT. Otherwise, it | |
9883 | is called from kbd_buffer_store_event, in handling SIGIO or | |
9884 | SIGTINT. | |
284f4730 | 9885 | |
d4e68eea GM |
9886 | If `waiting_for_input' is non zero, then unless `echoing' is |
9887 | nonzero, immediately throw back to read_char. | |
284f4730 | 9888 | |
d4e68eea GM |
9889 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
9890 | eval to throw, when it gets a chance. If quit-flag is already | |
9891 | non-nil, it stops the job right away. */ | |
284f4730 JB |
9892 | |
9893 | SIGTYPE | |
91c049d4 RS |
9894 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9895 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9896 | { |
9897 | char c; | |
9898 | /* Must preserve main program's value of errno. */ | |
9899 | int old_errno = errno; | |
788f89eb | 9900 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9901 | |
5970a8cb | 9902 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9903 | if (!read_socket_hook && NILP (Vwindow_system)) |
9904 | { | |
9905 | /* USG systems forget handlers when they are used; | |
9906 | must reestablish each time */ | |
9907 | signal (SIGINT, interrupt_signal); | |
9908 | signal (SIGQUIT, interrupt_signal); | |
9909 | } | |
284f4730 JB |
9910 | #endif /* USG */ |
9911 | ||
9912 | cancel_echoing (); | |
9913 | ||
31e4e97b | 9914 | if (!NILP (Vquit_flag) |
788f89eb | 9915 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9916 | { |
31e4e97b EZ |
9917 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9918 | another SIGINT, it might be harmful due to non-reentrancy | |
9919 | in I/O functions. */ | |
9920 | sigblock (sigmask (SIGINT)); | |
9921 | ||
284f4730 JB |
9922 | fflush (stdout); |
9923 | reset_sys_modes (); | |
31e4e97b | 9924 | |
284f4730 JB |
9925 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9926 | /* | |
9927 | * On systems which can suspend the current process and return to the original | |
9928 | * shell, this command causes the user to end up back at the shell. | |
9929 | * The "Auto-save" and "Abort" questions are not asked until | |
9930 | * the user elects to return to emacs, at which point he can save the current | |
9931 | * job and either dump core or continue. | |
9932 | */ | |
9933 | sys_suspend (); | |
9934 | #else | |
9935 | #ifdef VMS | |
9936 | if (sys_suspend () == -1) | |
9937 | { | |
9938 | printf ("Not running as a subprocess;\n"); | |
9939 | printf ("you can continue or abort.\n"); | |
9940 | } | |
9941 | #else /* not VMS */ | |
9942 | /* Perhaps should really fork an inferior shell? | |
9943 | But that would not provide any way to get back | |
9944 | to the original shell, ever. */ | |
9945 | printf ("No support for stopping a process on this operating system;\n"); | |
9946 | printf ("you can continue or abort.\n"); | |
9947 | #endif /* not VMS */ | |
9948 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9949 | #ifdef MSDOS |
9950 | /* We must remain inside the screen area when the internal terminal | |
9951 | is used. Note that [Enter] is not echoed by dos. */ | |
9952 | cursor_to (0, 0); | |
9953 | #endif | |
118d6ca9 RS |
9954 | /* It doesn't work to autosave while GC is in progress; |
9955 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9956 | if (!gc_in_progress) | |
9fd7d808 | 9957 | { |
118d6ca9 RS |
9958 | printf ("Auto-save? (y or n) "); |
9959 | fflush (stdout); | |
9960 | if (((c = getchar ()) & ~040) == 'Y') | |
9961 | { | |
9962 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9963 | #ifdef MSDOS |
118d6ca9 | 9964 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9965 | #else /* not MSDOS */ |
118d6ca9 | 9966 | printf ("Auto-save done\n"); |
80e4aa30 | 9967 | #endif /* not MSDOS */ |
118d6ca9 RS |
9968 | } |
9969 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9970 | } |
118d6ca9 RS |
9971 | else |
9972 | { | |
9973 | /* During GC, it must be safe to reenable quitting again. */ | |
9974 | Vinhibit_quit = Qnil; | |
9975 | #ifdef MSDOS | |
9976 | printf ("\r\n"); | |
9977 | #endif /* not MSDOS */ | |
9978 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9979 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9980 | fflush (stdout); | |
9981 | } | |
9982 | ||
80e4aa30 RS |
9983 | #ifdef MSDOS |
9984 | printf ("\r\nAbort? (y or n) "); | |
9985 | #else /* not MSDOS */ | |
284f4730 JB |
9986 | #ifdef VMS |
9987 | printf ("Abort (and enter debugger)? (y or n) "); | |
9988 | #else /* not VMS */ | |
9989 | printf ("Abort (and dump core)? (y or n) "); | |
9990 | #endif /* not VMS */ | |
80e4aa30 | 9991 | #endif /* not MSDOS */ |
284f4730 JB |
9992 | fflush (stdout); |
9993 | if (((c = getchar ()) & ~040) == 'Y') | |
9994 | abort (); | |
9995 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9996 | #ifdef MSDOS |
9997 | printf ("\r\nContinuing...\r\n"); | |
9998 | #else /* not MSDOS */ | |
284f4730 | 9999 | printf ("Continuing...\n"); |
80e4aa30 | 10000 | #endif /* not MSDOS */ |
284f4730 JB |
10001 | fflush (stdout); |
10002 | init_sys_modes (); | |
31e4e97b | 10003 | sigfree (); |
284f4730 JB |
10004 | } |
10005 | else | |
10006 | { | |
10007 | /* If executing a function that wants to be interrupted out of | |
10008 | and the user has not deferred quitting by binding `inhibit-quit' | |
10009 | then quit right away. */ | |
10010 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10011 | { | |
e39da3d7 RS |
10012 | struct gl_state_s saved; |
10013 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10014 | ||
284f4730 JB |
10015 | immediate_quit = 0; |
10016 | sigfree (); | |
e39da3d7 RS |
10017 | saved = gl_state; |
10018 | GCPRO4 (saved.object, saved.global_code, | |
10019 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10020 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10021 | gl_state = saved; |
10022 | UNGCPRO; | |
284f4730 JB |
10023 | } |
10024 | else | |
10025 | /* Else request quit when it's safe */ | |
10026 | Vquit_flag = Qt; | |
10027 | } | |
10028 | ||
10029 | if (waiting_for_input && !echoing) | |
10030 | quit_throw_to_read_char (); | |
10031 | ||
10032 | errno = old_errno; | |
10033 | } | |
10034 | ||
10035 | /* Handle a C-g by making read_char return C-g. */ | |
10036 | ||
07a59269 | 10037 | void |
284f4730 JB |
10038 | quit_throw_to_read_char () |
10039 | { | |
284f4730 JB |
10040 | sigfree (); |
10041 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10042 | clear_waiting_for_input (); |
284f4730 JB |
10043 | input_pending = 0; |
10044 | ||
24597608 | 10045 | Vunread_command_events = Qnil; |
86e5706b | 10046 | unread_command_char = -1; |
284f4730 | 10047 | |
087feab3 RS |
10048 | #if 0 /* Currently, sit_for is called from read_char without turning |
10049 | off polling. And that can call set_waiting_for_input. | |
10050 | It seems to be harmless. */ | |
e6b01c14 JB |
10051 | #ifdef POLL_FOR_INPUT |
10052 | /* May be > 1 if in recursive minibuffer. */ | |
10053 | if (poll_suppress_count == 0) | |
10054 | abort (); | |
10055 | #endif | |
087feab3 | 10056 | #endif |
4c52b668 | 10057 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10058 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10059 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10060 | 0, 0); |
e6b01c14 | 10061 | |
284f4730 JB |
10062 | _longjmp (getcjmp, 1); |
10063 | } | |
10064 | \f | |
10065 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10066 | doc: /* Set mode of reading keyboard input. |
10067 | First arg INTERRUPT non-nil means use input interrupts; | |
10068 | nil means use CBREAK mode. | |
10069 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10070 | (no effect except in CBREAK mode). | |
10071 | Third arg META t means accept 8-bit input (for a Meta key). | |
10072 | META nil means ignore the top bit, on the assumption it is parity. | |
10073 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10074 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10075 | See also `current-input-mode'. */) | |
10076 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10077 | Lisp_Object interrupt, flow, meta, quit; |
10078 | { | |
10079 | if (!NILP (quit) | |
8c18cbfb | 10080 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10081 | error ("set-input-mode: QUIT must be an ASCII character"); |
10082 | ||
10083 | #ifdef POLL_FOR_INPUT | |
10084 | stop_polling (); | |
10085 | #endif | |
284f4730 | 10086 | |
07de30b9 | 10087 | #ifndef DOS_NT |
2ee250ec | 10088 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10089 | reset_sys_modes (); |
2ee250ec RS |
10090 | #endif |
10091 | ||
284f4730 JB |
10092 | #ifdef SIGIO |
10093 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10094 | if (read_socket_hook) |
9a0f60bb KH |
10095 | { |
10096 | /* When using X, don't give the user a real choice, | |
10097 | because we haven't implemented the mechanisms to support it. */ | |
10098 | #ifdef NO_SOCK_SIGIO | |
10099 | interrupt_input = 0; | |
10100 | #else /* not NO_SOCK_SIGIO */ | |
10101 | interrupt_input = 1; | |
284f4730 | 10102 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10103 | } |
10104 | else | |
284f4730 JB |
10105 | interrupt_input = !NILP (interrupt); |
10106 | #else /* not SIGIO */ | |
10107 | interrupt_input = 0; | |
10108 | #endif /* not SIGIO */ | |
9a0f60bb | 10109 | |
284f4730 JB |
10110 | /* Our VMS input only works by interrupts, as of now. */ |
10111 | #ifdef VMS | |
10112 | interrupt_input = 1; | |
10113 | #endif | |
9a0f60bb | 10114 | |
284f4730 | 10115 | flow_control = !NILP (flow); |
b04904fb RS |
10116 | if (NILP (meta)) |
10117 | meta_key = 0; | |
10118 | else if (EQ (meta, Qt)) | |
10119 | meta_key = 1; | |
10120 | else | |
10121 | meta_key = 2; | |
284f4730 JB |
10122 | if (!NILP (quit)) |
10123 | /* Don't let this value be out of range. */ | |
10124 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10125 | ||
07de30b9 | 10126 | #ifndef DOS_NT |
284f4730 | 10127 | init_sys_modes (); |
2ee250ec | 10128 | #endif |
34f04431 RS |
10129 | |
10130 | #ifdef POLL_FOR_INPUT | |
10131 | poll_suppress_count = 1; | |
10132 | start_polling (); | |
10133 | #endif | |
284f4730 JB |
10134 | return Qnil; |
10135 | } | |
80645119 JB |
10136 | |
10137 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10138 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10139 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10140 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10141 | nil, Emacs is using CBREAK mode. | |
10142 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10143 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10144 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10145 | META nil means ignoring the top bit, on the assumption it is parity. | |
10146 | META is neither t nor nil if accepting 8-bit input and using | |
10147 | all 8 bits as the character code. | |
10148 | QUIT is the character Emacs currently uses to quit. | |
10149 | The elements of this list correspond to the arguments of | |
10150 | `set-input-mode'. */) | |
10151 | () | |
80645119 JB |
10152 | { |
10153 | Lisp_Object val[4]; | |
10154 | ||
10155 | val[0] = interrupt_input ? Qt : Qnil; | |
10156 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10157 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10158 | XSETFASTINT (val[3], quit_char); |
80645119 | 10159 | |
bf673a7a | 10160 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10161 | } |
10162 | ||
284f4730 | 10163 | \f |
6c6083a9 | 10164 | /* |
c5fdd383 | 10165 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10166 | */ |
10167 | void | |
c5fdd383 KH |
10168 | init_kboard (kb) |
10169 | KBOARD *kb; | |
6c6083a9 | 10170 | { |
217258d5 | 10171 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10172 | kb->Vlast_command = Qnil; |
75045dcb | 10173 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10174 | kb->Vprefix_arg = Qnil; |
75045dcb | 10175 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10176 | kb->kbd_queue = Qnil; |
10177 | kb->kbd_queue_has_data = 0; | |
10178 | kb->immediate_echo = 0; | |
678e9d18 | 10179 | kb->echo_string = Qnil; |
c5fdd383 KH |
10180 | kb->echo_after_prompt = -1; |
10181 | kb->kbd_macro_buffer = 0; | |
10182 | kb->kbd_macro_bufsize = 0; | |
10183 | kb->defining_kbd_macro = Qnil; | |
10184 | kb->Vlast_kbd_macro = Qnil; | |
10185 | kb->reference_count = 0; | |
7c97ffdc | 10186 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10187 | kb->system_key_syms = Qnil; |
9ba47203 | 10188 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10189 | } |
10190 | ||
10191 | /* | |
c5fdd383 | 10192 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10193 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10194 | * it a second time. |
10195 | */ | |
e50b8090 | 10196 | static void |
c5fdd383 KH |
10197 | wipe_kboard (kb) |
10198 | KBOARD *kb; | |
6c6083a9 | 10199 | { |
c5fdd383 KH |
10200 | if (kb->kbd_macro_buffer) |
10201 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10202 | } |
10203 | ||
e50b8090 | 10204 | #ifdef MULTI_KBOARD |
a122a38e GM |
10205 | |
10206 | /* Free KB and memory referenced from it. */ | |
10207 | ||
e50b8090 KH |
10208 | void |
10209 | delete_kboard (kb) | |
a122a38e | 10210 | KBOARD *kb; |
e50b8090 KH |
10211 | { |
10212 | KBOARD **kbp; | |
a122a38e | 10213 | |
e50b8090 KH |
10214 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10215 | if (*kbp == NULL) | |
10216 | abort (); | |
10217 | *kbp = kb->next_kboard; | |
a122a38e GM |
10218 | |
10219 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10220 | if (kb == current_kboard |
10221 | && FRAMEP (selected_frame) | |
10222 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10223 | { |
18f534df | 10224 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10225 | if (current_kboard == kb) |
10226 | abort (); | |
10227 | } | |
10228 | ||
e50b8090 KH |
10229 | wipe_kboard (kb); |
10230 | xfree (kb); | |
10231 | } | |
a122a38e GM |
10232 | |
10233 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10234 | |
dfcf069d | 10235 | void |
284f4730 JB |
10236 | init_keyboard () |
10237 | { | |
284f4730 JB |
10238 | /* This is correct before outermost invocation of the editor loop */ |
10239 | command_loop_level = -1; | |
10240 | immediate_quit = 0; | |
10241 | quit_char = Ctl ('g'); | |
24597608 | 10242 | Vunread_command_events = Qnil; |
86e5706b | 10243 | unread_command_char = -1; |
87dd9b9b | 10244 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10245 | total_keys = 0; |
9deb415a | 10246 | recent_keys_index = 0; |
beecf6a1 KH |
10247 | kbd_fetch_ptr = kbd_buffer; |
10248 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10249 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10250 | #ifdef HAVE_MOUSE |
a9d77f1f | 10251 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10252 | #endif |
284f4730 JB |
10253 | input_pending = 0; |
10254 | ||
4c52b668 KH |
10255 | /* This means that command_loop_1 won't try to select anything the first |
10256 | time through. */ | |
10257 | internal_last_event_frame = Qnil; | |
10258 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10259 | |
c5fdd383 | 10260 | #ifdef MULTI_KBOARD |
aaca43a1 | 10261 | current_kboard = initial_kboard; |
6c6083a9 | 10262 | #endif |
aaca43a1 | 10263 | wipe_kboard (current_kboard); |
c5fdd383 | 10264 | init_kboard (current_kboard); |
07d2b8de | 10265 | |
7a80a6f6 | 10266 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10267 | { |
10268 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10269 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10270 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10271 | SIGQUIT and we can't tell which one it will give us. */ | |
10272 | signal (SIGQUIT, interrupt_signal); | |
10273 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10274 | } |
284f4730 JB |
10275 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10276 | #ifdef SIGIO | |
7a80a6f6 RS |
10277 | if (!noninteractive) |
10278 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10279 | #endif /* SIGIO */ |
284f4730 JB |
10280 | |
10281 | /* Use interrupt input by default, if it works and noninterrupt input | |
10282 | has deficiencies. */ | |
10283 | ||
10284 | #ifdef INTERRUPT_INPUT | |
10285 | interrupt_input = 1; | |
10286 | #else | |
10287 | interrupt_input = 0; | |
10288 | #endif | |
10289 | ||
10290 | /* Our VMS input only works by interrupts, as of now. */ | |
10291 | #ifdef VMS | |
10292 | interrupt_input = 1; | |
10293 | #endif | |
10294 | ||
10295 | sigfree (); | |
10296 | dribble = 0; | |
10297 | ||
10298 | if (keyboard_init_hook) | |
10299 | (*keyboard_init_hook) (); | |
10300 | ||
10301 | #ifdef POLL_FOR_INPUT | |
10302 | poll_suppress_count = 1; | |
10303 | start_polling (); | |
10304 | #endif | |
10305 | } | |
10306 | ||
df0f2ba1 | 10307 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10308 | event header symbols and put properties on them. */ |
10309 | struct event_head { | |
10310 | Lisp_Object *var; | |
10311 | char *name; | |
10312 | Lisp_Object *kind; | |
10313 | }; | |
10314 | ||
10315 | struct event_head head_table[] = { | |
7406e988 PJ |
10316 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10317 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10318 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10319 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10320 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 PJ |
10321 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
10322 | {&Qselect_window, "select-window", &Qselect_window} | |
284f4730 JB |
10323 | }; |
10324 | ||
dfcf069d | 10325 | void |
284f4730 JB |
10326 | syms_of_keyboard () |
10327 | { | |
f0c1cc56 GM |
10328 | Vpre_help_message = Qnil; |
10329 | staticpro (&Vpre_help_message); | |
10330 | ||
8e1e4240 GM |
10331 | Vlispy_mouse_stem = build_string ("mouse"); |
10332 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10333 | |
9ea173e8 | 10334 | /* Tool-bars. */ |
7ee32cda GM |
10335 | QCimage = intern (":image"); |
10336 | staticpro (&QCimage); | |
10337 | ||
10338 | staticpro (&Qhelp_echo); | |
10339 | Qhelp_echo = intern ("help-echo"); | |
10340 | ||
e8886a1d RS |
10341 | staticpro (&item_properties); |
10342 | item_properties = Qnil; | |
10343 | ||
9ea173e8 GM |
10344 | staticpro (&tool_bar_item_properties); |
10345 | tool_bar_item_properties = Qnil; | |
10346 | staticpro (&tool_bar_items_vector); | |
10347 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10348 | |
d5eecefb RS |
10349 | staticpro (&real_this_command); |
10350 | real_this_command = Qnil; | |
10351 | ||
d925fb39 RS |
10352 | Qtimer_event_handler = intern ("timer-event-handler"); |
10353 | staticpro (&Qtimer_event_handler); | |
10354 | ||
2e894dab RS |
10355 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10356 | staticpro (&Qdisabled_command_hook); | |
10357 | ||
284f4730 JB |
10358 | Qself_insert_command = intern ("self-insert-command"); |
10359 | staticpro (&Qself_insert_command); | |
10360 | ||
10361 | Qforward_char = intern ("forward-char"); | |
10362 | staticpro (&Qforward_char); | |
10363 | ||
10364 | Qbackward_char = intern ("backward-char"); | |
10365 | staticpro (&Qbackward_char); | |
10366 | ||
10367 | Qdisabled = intern ("disabled"); | |
10368 | staticpro (&Qdisabled); | |
10369 | ||
e58aa385 RS |
10370 | Qundefined = intern ("undefined"); |
10371 | staticpro (&Qundefined); | |
10372 | ||
86e5706b RS |
10373 | Qpre_command_hook = intern ("pre-command-hook"); |
10374 | staticpro (&Qpre_command_hook); | |
10375 | ||
10376 | Qpost_command_hook = intern ("post-command-hook"); | |
10377 | staticpro (&Qpost_command_hook); | |
10378 | ||
59aadc81 RS |
10379 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10380 | staticpro (&Qpost_command_idle_hook); | |
10381 | ||
3ef14e46 RS |
10382 | Qdeferred_action_function = intern ("deferred-action-function"); |
10383 | staticpro (&Qdeferred_action_function); | |
10384 | ||
40932d1a RS |
10385 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10386 | staticpro (&Qcommand_hook_internal); | |
10387 | ||
284f4730 JB |
10388 | Qfunction_key = intern ("function-key"); |
10389 | staticpro (&Qfunction_key); | |
13b5e56c | 10390 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10391 | staticpro (&Qmouse_click); |
07de30b9 GV |
10392 | #ifdef WINDOWSNT |
10393 | Qmouse_wheel = intern ("mouse-wheel"); | |
10394 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
10395 | Qlanguage_change = intern ("language-change"); |
10396 | staticpro (&Qlanguage_change); | |
07de30b9 | 10397 | #endif |
a24dc617 RS |
10398 | Qdrag_n_drop = intern ("drag-n-drop"); |
10399 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10400 | |
4ebc27a5 JD |
10401 | Qsave_session = intern ("save-session"); |
10402 | staticpro(&Qsave_session); | |
10403 | ||
5bf68f6e AS |
10404 | Qusr1_signal = intern ("usr1-signal"); |
10405 | staticpro (&Qusr1_signal); | |
10406 | Qusr2_signal = intern ("usr2-signal"); | |
10407 | staticpro (&Qusr2_signal); | |
10408 | ||
598a9fa7 JB |
10409 | Qmenu_enable = intern ("menu-enable"); |
10410 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10411 | Qmenu_alias = intern ("menu-alias"); |
10412 | staticpro (&Qmenu_alias); | |
10413 | QCenable = intern (":enable"); | |
10414 | staticpro (&QCenable); | |
10415 | QCvisible = intern (":visible"); | |
10416 | staticpro (&QCvisible); | |
7ee32cda GM |
10417 | QChelp = intern (":help"); |
10418 | staticpro (&QChelp); | |
e8886a1d RS |
10419 | QCfilter = intern (":filter"); |
10420 | staticpro (&QCfilter); | |
10421 | QCbutton = intern (":button"); | |
10422 | staticpro (&QCbutton); | |
74c1de23 RS |
10423 | QCkeys = intern (":keys"); |
10424 | staticpro (&QCkeys); | |
10425 | QCkey_sequence = intern (":key-sequence"); | |
10426 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10427 | QCtoggle = intern (":toggle"); |
10428 | staticpro (&QCtoggle); | |
10429 | QCradio = intern (":radio"); | |
10430 | staticpro (&QCradio); | |
598a9fa7 | 10431 | |
284f4730 JB |
10432 | Qmode_line = intern ("mode-line"); |
10433 | staticpro (&Qmode_line); | |
e5d77022 JB |
10434 | Qvertical_line = intern ("vertical-line"); |
10435 | staticpro (&Qvertical_line); | |
3c370943 JB |
10436 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10437 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10438 | Qmenu_bar = intern ("menu-bar"); |
10439 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10440 | |
10441 | Qabove_handle = intern ("above-handle"); | |
10442 | staticpro (&Qabove_handle); | |
10443 | Qhandle = intern ("handle"); | |
10444 | staticpro (&Qhandle); | |
10445 | Qbelow_handle = intern ("below-handle"); | |
10446 | staticpro (&Qbelow_handle); | |
db08707d RS |
10447 | Qup = intern ("up"); |
10448 | staticpro (&Qup); | |
10449 | Qdown = intern ("down"); | |
10450 | staticpro (&Qdown); | |
7ee32cda GM |
10451 | Qtop = intern ("top"); |
10452 | staticpro (&Qtop); | |
10453 | Qbottom = intern ("bottom"); | |
10454 | staticpro (&Qbottom); | |
10455 | Qend_scroll = intern ("end-scroll"); | |
10456 | staticpro (&Qend_scroll); | |
eef28553 SM |
10457 | Qratio = intern ("ratio"); |
10458 | staticpro (&Qratio); | |
284f4730 | 10459 | |
cd21b839 | 10460 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10461 | staticpro (&Qevent_kind); |
88cb0656 JB |
10462 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10463 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10464 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10465 | staticpro (&Qevent_symbol_element_mask); | |
10466 | Qmodifier_cache = intern ("modifier-cache"); | |
10467 | staticpro (&Qmodifier_cache); | |
284f4730 | 10468 | |
48e416d4 RS |
10469 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10470 | staticpro (&Qrecompute_lucid_menubar); | |
10471 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10472 | staticpro (&Qactivate_menubar_hook); | |
10473 | ||
f4eef8b4 RS |
10474 | Qpolling_period = intern ("polling-period"); |
10475 | staticpro (&Qpolling_period); | |
10476 | ||
7d18f9ae RS |
10477 | Qinput_method_function = intern ("input-method-function"); |
10478 | staticpro (&Qinput_method_function); | |
10479 | ||
d5eecefb RS |
10480 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10481 | staticpro (&Qinput_method_exit_on_first_char); | |
10482 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10483 | staticpro (&Qinput_method_use_echo_area); | |
10484 | ||
10485 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10486 | Fset (Qinput_method_use_echo_area, Qnil); | |
10487 | ||
e18dfbf4 KR |
10488 | last_point_position_buffer = Qnil; |
10489 | ||
284f4730 JB |
10490 | { |
10491 | struct event_head *p; | |
10492 | ||
10493 | for (p = head_table; | |
10494 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10495 | p++) | |
10496 | { | |
10497 | *p->var = intern (p->name); | |
10498 | staticpro (p->var); | |
10499 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10500 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10501 | } |
10502 | } | |
10503 | ||
8e1e4240 | 10504 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10505 | staticpro (&button_down_location); |
8e1e4240 GM |
10506 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10507 | staticpro (&mouse_syms); | |
88cb0656 JB |
10508 | |
10509 | { | |
10510 | int i; | |
10511 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10512 | ||
10513 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10514 | for (i = 0; i < len; i++) | |
86e5706b RS |
10515 | if (modifier_names[i]) |
10516 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10517 | staticpro (&modifier_symbols); |
10518 | } | |
10519 | ||
9deb415a JB |
10520 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10521 | staticpro (&recent_keys); | |
10522 | ||
6569cc8d | 10523 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10524 | staticpro (&this_command_keys); |
6569cc8d | 10525 | |
7d18f9ae RS |
10526 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10527 | staticpro (&raw_keybuf); | |
10528 | ||
03b4122a BF |
10529 | Qextended_command_history = intern ("extended-command-history"); |
10530 | Fset (Qextended_command_history, Qnil); | |
10531 | staticpro (&Qextended_command_history); | |
10532 | ||
da8f7368 GM |
10533 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10534 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10535 | |
24597608 RS |
10536 | accent_key_syms = Qnil; |
10537 | staticpro (&accent_key_syms); | |
10538 | ||
284f4730 JB |
10539 | func_key_syms = Qnil; |
10540 | staticpro (&func_key_syms); | |
10541 | ||
07de30b9 GV |
10542 | #ifdef WINDOWSNT |
10543 | mouse_wheel_syms = Qnil; | |
10544 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
10545 | |
10546 | drag_n_drop_syms = Qnil; | |
10547 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
10548 | #endif |
10549 | ||
cd21b839 JB |
10550 | unread_switch_frame = Qnil; |
10551 | staticpro (&unread_switch_frame); | |
10552 | ||
fe412364 EN |
10553 | internal_last_event_frame = Qnil; |
10554 | staticpro (&internal_last_event_frame); | |
10555 | ||
10556 | read_key_sequence_cmd = Qnil; | |
10557 | staticpro (&read_key_sequence_cmd); | |
10558 | ||
759860a6 RS |
10559 | menu_bar_one_keymap_changed_items = Qnil; |
10560 | staticpro (&menu_bar_one_keymap_changed_items); | |
10561 | ||
a1706c30 | 10562 | defsubr (&Sevent_convert_list); |
284f4730 | 10563 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10564 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10565 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10566 | #ifdef HAVE_MOUSE |
284f4730 | 10567 | defsubr (&Strack_mouse); |
2eb6bfbe | 10568 | #endif |
284f4730 JB |
10569 | defsubr (&Sinput_pending_p); |
10570 | defsubr (&Scommand_execute); | |
10571 | defsubr (&Srecent_keys); | |
10572 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10573 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10574 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10575 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10576 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10577 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10578 | defsubr (&Ssuspend_emacs); |
10579 | defsubr (&Sabort_recursive_edit); | |
10580 | defsubr (&Sexit_recursive_edit); | |
10581 | defsubr (&Srecursion_depth); | |
10582 | defsubr (&Stop_level); | |
10583 | defsubr (&Sdiscard_input); | |
10584 | defsubr (&Sopen_dribble_file); | |
10585 | defsubr (&Sset_input_mode); | |
80645119 | 10586 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10587 | defsubr (&Sexecute_extended_command); |
10588 | ||
284f4730 | 10589 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 10590 | doc: /* Last input event that was part of a command. */); |
86e5706b | 10591 | |
186cf719 | 10592 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 10593 | doc: /* Last input event that was part of a command. */); |
284f4730 | 10594 | |
7d6de002 | 10595 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
10596 | doc: /* Last input event in a command, except for mouse menu events. |
10597 | Mouse menus give back keys that don't look like mouse events; | |
10598 | this variable holds the actual mouse event that led to the menu, | |
10599 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 10600 | |
284f4730 | 10601 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 10602 | doc: /* Last input event. */); |
86e5706b | 10603 | |
186cf719 | 10604 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 10605 | doc: /* Last input event. */); |
284f4730 | 10606 | |
24597608 | 10607 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
10608 | doc: /* List of events to be read as the command input. |
10609 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 10610 | Vunread_command_events = Qnil; |
284f4730 | 10611 | |
86e5706b | 10612 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 10613 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 10614 | |
7d18f9ae | 10615 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
10616 | doc: /* List of events to be processed as input by input methods. |
10617 | These events are processed after `unread-command-events', but | |
10618 | before actual keyboard input. */); | |
7d18f9ae RS |
10619 | Vunread_post_input_method_events = Qnil; |
10620 | ||
10621 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
10622 | doc: /* List of events to be processed as input by input methods. |
10623 | These events are processed after `unread-command-events', but | |
10624 | before actual keyboard input. */); | |
7d18f9ae RS |
10625 | Vunread_input_method_events = Qnil; |
10626 | ||
284f4730 | 10627 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
10628 | doc: /* Meta-prefix character code. |
10629 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 10630 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10631 | |
6c7178b9 | 10632 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
10633 | doc: /* The last command executed. |
10634 | Normally a symbol with a function definition, but can be whatever was found | |
10635 | in the keymap, or whatever the variable `this-command' was set to by that | |
10636 | command. | |
10637 | ||
10638 | The value `mode-exit' is special; it means that the previous command | |
10639 | read an event that told it to exit, and it did so and unread that event. | |
10640 | In other words, the present command is the event that made the previous | |
10641 | command exit. | |
10642 | ||
10643 | The value `kill-region' is special; it means that the previous command | |
10644 | was a kill command. */); | |
284f4730 | 10645 | |
75045dcb | 10646 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 10647 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 10648 | |
d5eecefb | 10649 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
10650 | doc: /* The command now being executed. |
10651 | The command can set this variable; whatever is put here | |
10652 | will be in `last-command' during the following command. */); | |
d5eecefb | 10653 | Vthis_command = Qnil; |
284f4730 | 10654 | |
8b9940e6 KS |
10655 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
10656 | doc: /* If non-nil, the original command bound to the current key sequence. | |
10657 | The value of `this-command' is the result of looking up the original | |
10658 | command in the active keymaps. */); | |
10659 | Vthis_original_command = Qnil; | |
10660 | ||
284f4730 | 10661 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
10662 | doc: /* *Number of input events between auto-saves. |
10663 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
10664 | auto_save_interval = 300; |
10665 | ||
10666 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
10667 | doc: /* *Number of seconds idle time before auto-save. |
10668 | Zero or nil means disable auto-saving due to idleness. | |
10669 | After auto-saving due to this many seconds of idle time, | |
10670 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 10671 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10672 | |
39aab679 | 10673 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
10674 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
10675 | The value may be integer or floating point. */); | |
39aab679 | 10676 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10677 | |
10678 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
10679 | doc: /* *Interval between polling for input during Lisp execution. |
10680 | The reason for polling is to make C-g work to stop a running program. | |
10681 | Polling is needed only when using X windows and SIGIO does not work. | |
10682 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 10683 | polling_period = 2; |
df0f2ba1 | 10684 | |
564dc952 | 10685 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
10686 | doc: /* *Maximum time between mouse clicks to make a double-click. |
10687 | Measured in milliseconds. nil means disable double-click recognition; | |
10688 | t means double-clicks have no time limit and are detected | |
10689 | by position only. */); | |
aab06933 | 10690 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10691 | |
222d557c | 10692 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
10693 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
10694 | On window-system frames, value is the number of pixels the mouse may have | |
10695 | moved horizontally or vertically between two clicks to make a double-click. | |
10696 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
10697 | instead of pixels. |
10698 | ||
10699 | This variable is also the threshold for motion of the mouse | |
10700 | to count as a drag. */); | |
222d557c GM |
10701 | double_click_fuzz = 3; |
10702 | ||
03361bcc | 10703 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 10704 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
10705 | inhibit_local_menu_bar_menus = 0; |
10706 | ||
284f4730 | 10707 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
10708 | doc: /* Number of complete key sequences read as input so far. |
10709 | This includes key sequences read from keyboard macros. | |
10710 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
10711 | num_input_keys = 0; |
10712 | ||
c43b1734 | 10713 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
10714 | doc: /* Number of input events read from the keyboard so far. |
10715 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 10716 | num_nonmacro_input_events = 0; |
fa90970d | 10717 | |
4c52b668 | 10718 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
10719 | doc: /* The frame in which the most recently read event occurred. |
10720 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
10721 | Vlast_event_frame = Qnil; |
10722 | ||
fa90970d RS |
10723 | /* This variable is set up in sysdep.c. */ |
10724 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 10725 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 10726 | |
7e85b935 | 10727 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
10728 | doc: /* Character to recognize as meaning Help. |
10729 | When it is read, do `(eval help-form)', and display result if it's a string. | |
10730 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 10731 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10732 | |
ecb7cb34 | 10733 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
10734 | doc: /* List of input events to recognize as meaning Help. |
10735 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
10736 | Vhelp_event_list = Qnil; |
10737 | ||
284f4730 | 10738 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
10739 | doc: /* Form to execute when character `help-char' is read. |
10740 | If the form returns a string, that string is displayed. | |
10741 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
10742 | Vhelp_form = Qnil; |
10743 | ||
7e85b935 | 10744 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
10745 | doc: /* Command to run when `help-char' character follows a prefix key. |
10746 | This command is used only when there is no actual binding | |
10747 | for that character after that prefix key. */); | |
7e85b935 RS |
10748 | Vprefix_help_command = Qnil; |
10749 | ||
284f4730 | 10750 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
10751 | doc: /* Form to evaluate when Emacs starts up. |
10752 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
10753 | Vtop_level = Qnil; |
10754 | ||
10755 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 PJ |
10756 | doc: /* Translate table for keyboard input, or nil. |
10757 | Each character is looked up in this string and the contents used instead. | |
10758 | The value may be a string, a vector, or a char-table. | |
10759 | If it is a string or vector of length N, | |
10760 | character codes N and up are untranslated. | |
10761 | In a vector or a char-table, an element which is nil means "no translation". */); | |
284f4730 JB |
10762 | Vkeyboard_translate_table = Qnil; |
10763 | ||
8026024c | 10764 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
10765 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
10766 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
10767 | cannot_suspend = 0; |
10768 | ||
284f4730 | 10769 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
10770 | doc: /* Non-nil means prompt with menus when appropriate. |
10771 | This is done when reading from a keymap that has a prompt string, | |
10772 | for elements that have prompt strings. | |
10773 | The menu is displayed on the screen | |
10774 | if X menus were enabled at configuration | |
10775 | time and the previous event was a mouse click prefix key. | |
10776 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
10777 | menu_prompting = 1; |
10778 | ||
10779 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
10780 | doc: /* Character to see next line of menu prompt. |
10781 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 10782 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10783 | |
10784 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
10785 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
10786 | Emacs applies the modifiers of the character stored here to each keyboard | |
10787 | character it reads. For example, after evaluating the expression | |
10788 | (setq extra-keyboard-modifiers ?\\C-x) | |
10789 | all input characters will have the control modifier applied to them. | |
10790 | ||
10791 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
10792 | not count as a control character; rather, it counts as a character | |
10793 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
10794 | cancels any modification. */); | |
9fa4395d | 10795 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10796 | |
10797 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
10798 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
10799 | The command loop sets this to nil before each command, | |
10800 | and tests the value when the command returns. | |
10801 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
10802 | Vdeactivate_mark = Qnil; |
10803 | ||
b0f2a7bf | 10804 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 10805 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
10806 | Vcommand_hook_internal = Qnil; |
10807 | ||
86e5706b | 10808 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
10809 | doc: /* Normal hook run before each command is executed. |
10810 | If an unhandled error happens in running this hook, | |
10811 | the hook value is set to nil, since otherwise the error | |
10812 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
10813 | Vpre_command_hook = Qnil; |
10814 | ||
10815 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
10816 | doc: /* Normal hook run after each command is executed. |
10817 | If an unhandled error happens in running this hook, | |
10818 | the hook value is set to nil, since otherwise the error | |
10819 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 10820 | Vpost_command_hook = Qnil; |
48e416d4 | 10821 | |
59aadc81 | 10822 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
4707d2d0 PJ |
10823 | doc: /* Normal hook run after each command is executed, if idle. |
10824 | Errors running the hook are caught and ignored. | |
10825 | This feature is obsolete; use idle timers instead. See `etc/NEWS'. */); | |
59aadc81 RS |
10826 | Vpost_command_idle_hook = Qnil; |
10827 | ||
10828 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
4707d2d0 PJ |
10829 | doc: /* Delay time before running `post-command-idle-hook'. |
10830 | This is measured in microseconds. */); | |
59aadc81 RS |
10831 | post_command_idle_delay = 100000; |
10832 | ||
cf24f894 RS |
10833 | #if 0 |
10834 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 10835 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
10836 | #endif |
10837 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10838 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); | |
cdb9d665 | 10839 | |
48e416d4 | 10840 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 10841 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 10842 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 10843 | |
9f9c0e27 | 10844 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
10845 | doc: /* List of menu bar items to move to the end of the menu bar. |
10846 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 10847 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10848 | |
217258d5 KH |
10849 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10850 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
10851 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
10852 | If this variable is non-nil, it is used as a keymap instead of the | |
10853 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
10854 | This variable is intended to let commands such as `universal-argument' | |
10855 | set up a different keymap for reading the next command. */); | |
217258d5 | 10856 | |
9dd3131c | 10857 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 PJ |
10858 | doc: /* Keymap that overrides all other local keymaps. |
10859 | If this variable is non-nil, it is used as a keymap instead of the | |
10860 | buffer's local map, and the minor mode keymaps and text property keymaps. */); | |
9dd3131c RS |
10861 | Voverriding_local_map = Qnil; |
10862 | ||
d0a49716 | 10863 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
10864 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
10865 | Otherwise, the menu bar continues to reflect the buffer's local map | |
10866 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
10867 | Voverriding_local_map_menu_flag = Qnil; |
10868 | ||
7f07d5ca | 10869 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 10870 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
10871 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
10872 | ||
71edead1 | 10873 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 10874 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 10875 | |
7c97ffdc | 10876 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
10877 | doc: /* Alist of system-specific X windows key symbols. |
10878 | Each element should have the form (N . SYMBOL) where N is the | |
10879 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
10880 | and SYMBOL is its name. */); | |
8a792f3a RS |
10881 | |
10882 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
10883 | doc: /* List of deferred actions to be performed at a later time. |
10884 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
10885 | Vdeferred_action_list = Qnil; |
10886 | ||
10887 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
10888 | doc: /* Function to call to handle deferred actions, after each command. |
10889 | This function is called with no arguments after each command | |
10890 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 10891 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
10892 | |
10893 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
10894 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
10895 | The value can be a length of time to show the message for. | |
10896 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 10897 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 10898 | |
c04cbc3b | 10899 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 10900 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 10901 | Vtimer_list = Qnil; |
d9d4c147 KH |
10902 | |
10903 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 10904 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 10905 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
10906 | |
10907 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
10908 | doc: /* If non-nil, the function that implements the current input method. |
10909 | It's called with one argument, a printing character that was just read. | |
10910 | \(That means a character with code 040...0176.) | |
10911 | Typically this function uses `read-event' to read additional events. | |
10912 | When it does so, it should first bind `input-method-function' to nil | |
10913 | so it will not be called recursively. | |
10914 | ||
10915 | The function should return a list of zero or more events | |
10916 | to be used as input. If it wants to put back some events | |
10917 | to be reconsidered, separately, by the input method, | |
10918 | it can add them to the beginning of `unread-command-events'. | |
10919 | ||
10920 | The input method function can find in `input-method-previous-method' | |
10921 | the previous echo area message. | |
10922 | ||
10923 | The input method function should refer to the variables | |
10924 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
10925 | for guidance on what to do. */); | |
7d18f9ae | 10926 | Vinput_method_function = Qnil; |
d5eecefb RS |
10927 | |
10928 | DEFVAR_LISP ("input-method-previous-message", | |
10929 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
10930 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
10931 | This variable exists because `read-event' clears the echo area | |
10932 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 10933 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
10934 | |
10935 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
10936 | doc: /* If non-nil, the function that implements the display of help. |
10937 | It's called with one argument, the help string to display. */); | |
7ee32cda | 10938 | Vshow_help_function = Qnil; |
adf5cb9c KH |
10939 | |
10940 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
10941 | doc: /* If non-nil, suppress point adjustment after executing a command. |
10942 | ||
10943 | After a command is executed, if point is moved into a region that has | |
10944 | special properties (e.g. composition, display), we adjust point to | |
10945 | the boundary of the region. But, several special commands sets this | |
10946 | variable to non-nil, then we suppress the point adjustment. | |
10947 | ||
10948 | This variable is set to nil before reading a command, and is checked | |
10949 | just after executing the command. */); | |
adf5cb9c KH |
10950 | Vdisable_point_adjustment = Qnil; |
10951 | ||
10952 | DEFVAR_LISP ("global-disable-point-adjustment", | |
10953 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
10954 | doc: /* *If non-nil, always suppress point adjustment. |
10955 | ||
10956 | The default value is nil, in which case, point adjustment are | |
10957 | suppressed only after special commands that set | |
10958 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 10959 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 10960 | |
a1d34b1e | 10961 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
10962 | doc: /* Non-nil means updating menu bindings is allowed. |
10963 | A value of nil means menu bindings should not be updated. | |
10964 | Used during Emacs' startup. */); | |
3626fb1a | 10965 | update_menu_bindings = 1; |
00392ce6 MB |
10966 | |
10967 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
10968 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
10969 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 10970 | Vminibuffer_message_timeout = make_number (2); |
284f4730 JB |
10971 | } |
10972 | ||
dfcf069d | 10973 | void |
284f4730 JB |
10974 | keys_of_keyboard () |
10975 | { | |
10976 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10977 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10978 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10979 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10980 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10981 | |
10982 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10983 | "handle-delete-frame"); | |
10984 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10985 | "ignore-event"); | |
10986 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10987 | "ignore-event"); | |
a697f886 PJ |
10988 | initial_define_lispy_key (Vspecial_event_map, "select-window", |
10989 | "handle-select-window"); | |
4ebc27a5 JD |
10990 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
10991 | "handle-save-session"); | |
284f4730 | 10992 | } |