Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
f9f1e1fc | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000, 01, 02 |
39aab679 | 3 | Free Software Foundation, Inc. |
284f4730 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 9 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
284f4730 | 21 | |
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
284f4730 | 24 | #include <stdio.h> |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
27 | #include "lisp.h" | |
28 | #include "termhooks.h" | |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.h" |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.h" |
bdb7aa47 | 40 | #include "keymap.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
8a9f5d3c GM |
43 | #include "systime.h" |
44 | #include "atimer.h" | |
284f4730 JB |
45 | #include <setjmp.h> |
46 | #include <errno.h> | |
47 | ||
80e4aa30 RS |
48 | #ifdef MSDOS |
49 | #include "msdos.h" | |
50 | #include <time.h> | |
51 | #else /* not MSDOS */ | |
284f4730 JB |
52 | #ifndef VMS |
53 | #include <sys/ioctl.h> | |
284f4730 | 54 | #endif |
80e4aa30 | 55 | #endif /* not MSDOS */ |
284f4730 | 56 | |
52baf19e | 57 | #include "syssignal.h" |
6ef5b54f | 58 | #include "systty.h" |
52baf19e | 59 | |
03cee6ae GM |
60 | #include <sys/types.h> |
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
64 | ||
c5e3b6c5 RS |
65 | /* This is to get the definitions of the XK_ symbols. */ |
66 | #ifdef HAVE_X_WINDOWS | |
67 | #include "xterm.h" | |
68 | #endif | |
69 | ||
e98a93eb GV |
70 | #ifdef HAVE_NTGUI |
71 | #include "w32term.h" | |
72 | #endif /* HAVE_NTGUI */ | |
73 | ||
e0f712ba | 74 | #ifdef MAC_OS |
1a578e9b AC |
75 | #include "macterm.h" |
76 | #endif | |
77 | ||
02639609 | 78 | #ifndef USE_CRT_DLL |
52baf19e | 79 | extern int errno; |
02639609 | 80 | #endif |
52baf19e | 81 | |
9ac0d9e0 JB |
82 | /* Variables for blockinput.h: */ |
83 | ||
84 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 85 | int interrupt_input_blocked; |
9ac0d9e0 JB |
86 | |
87 | /* Nonzero means an input interrupt has arrived | |
88 | during the current critical section. */ | |
63927c41 | 89 | int interrupt_input_pending; |
9ac0d9e0 JB |
90 | |
91 | ||
437f6112 RS |
92 | /* File descriptor to use for input. */ |
93 | extern int input_fd; | |
284f4730 | 94 | |
e98a93eb | 95 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 96 | /* Make all keyboard buffers much bigger when using X windows. */ |
e0f712ba AC |
97 | #ifdef MAC_OS8 |
98 | /* But not too big (local data > 32K error) if on Mac OS Classic. */ | |
f019cded RS |
99 | #define KBD_BUFFER_SIZE 512 |
100 | #else | |
284f4730 | 101 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 102 | #endif |
284f4730 | 103 | #else /* No X-windows, character input */ |
de11c1ea | 104 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
105 | #endif /* No X-windows */ |
106 | ||
222d557c GM |
107 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
108 | ||
284f4730 JB |
109 | /* Following definition copied from eval.c */ |
110 | ||
111 | struct backtrace | |
112 | { | |
113 | struct backtrace *next; | |
114 | Lisp_Object *function; | |
115 | Lisp_Object *args; /* Points to vector of args. */ | |
116 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
117 | args points to slot holding list of | |
118 | unevalled args */ | |
119 | char evalargs; | |
120 | }; | |
121 | ||
c5fdd383 KH |
122 | #ifdef MULTI_KBOARD |
123 | KBOARD *initial_kboard; | |
124 | KBOARD *current_kboard; | |
125 | KBOARD *all_kboards; | |
1e8bd3da | 126 | int single_kboard; |
6c6083a9 | 127 | #else |
c5fdd383 | 128 | KBOARD the_only_kboard; |
6c6083a9 | 129 | #endif |
612b78ef | 130 | |
284f4730 JB |
131 | /* Non-nil disable property on a command means |
132 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 133 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
134 | |
135 | #define NUM_RECENT_KEYS (100) | |
136 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
137 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 138 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 139 | |
6569cc8d JB |
140 | /* Vector holding the key sequence that invoked the current command. |
141 | It is reused for each command, and it may be longer than the current | |
142 | sequence; this_command_key_count indicates how many elements | |
143 | actually mean something. | |
144 | It's easier to staticpro a single Lisp_Object than an array. */ | |
145 | Lisp_Object this_command_keys; | |
146 | int this_command_key_count; | |
284f4730 | 147 | |
7d18f9ae RS |
148 | /* This vector is used as a buffer to record the events that were actually read |
149 | by read_key_sequence. */ | |
150 | Lisp_Object raw_keybuf; | |
151 | int raw_keybuf_count; | |
152 | ||
153 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 154 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
7d18f9ae RS |
155 | { \ |
156 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
157 | Lisp_Object new; \ | |
158 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
159 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
160 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
161 | raw_keybuf = new; \ | |
162 | } | |
163 | ||
6321824f RS |
164 | /* Number of elements of this_command_keys |
165 | that precede this key sequence. */ | |
166 | int this_single_command_key_start; | |
167 | ||
71918b75 RS |
168 | /* Record values of this_command_key_count and echo_length () |
169 | before this command was read. */ | |
170 | static int before_command_key_count; | |
171 | static int before_command_echo_length; | |
172 | /* Values of before_command_key_count and before_command_echo_length | |
173 | saved by reset-this-command-lengths. */ | |
174 | static int before_command_key_count_1; | |
175 | static int before_command_echo_length_1; | |
176 | /* Flag set by reset-this-command-lengths, | |
177 | saying to reset the lengths when add_command_key is called. */ | |
178 | static int before_command_restore_flag; | |
179 | ||
284f4730 JB |
180 | extern int minbuf_level; |
181 | ||
a59b172a RS |
182 | extern int message_enable_multibyte; |
183 | ||
284f4730 JB |
184 | extern struct backtrace *backtrace_list; |
185 | ||
7ee32cda GM |
186 | /* If non-nil, the function that implements the display of help. |
187 | It's called with one argument, the help string to display. */ | |
188 | ||
189 | Lisp_Object Vshow_help_function; | |
190 | ||
f0c1cc56 GM |
191 | /* If a string, the message displayed before displaying a help-echo |
192 | in the echo area. */ | |
193 | ||
194 | Lisp_Object Vpre_help_message; | |
195 | ||
284f4730 | 196 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 197 | |
284f4730 JB |
198 | static int menu_prompting; |
199 | ||
200 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 201 | |
284f4730 JB |
202 | static Lisp_Object menu_prompt_more_char; |
203 | ||
204 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 205 | |
284f4730 JB |
206 | static jmp_buf getcjmp; |
207 | ||
208 | /* True while doing kbd input. */ | |
209 | int waiting_for_input; | |
210 | ||
211 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 212 | |
c843d6c6 | 213 | int echoing; |
284f4730 | 214 | |
985f9f66 GM |
215 | /* Non-null means we can start echoing at the next input pause even |
216 | though there is something in the echo area. */ | |
217 | ||
218 | static struct kboard *ok_to_echo_at_next_pause; | |
219 | ||
59a84f8e GM |
220 | /* The kboard last echoing, or null for none. Reset to 0 in |
221 | cancel_echoing. If non-null, and a current echo area message | |
222 | exists, and echo_message_buffer is eq to the current message | |
223 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 224 | |
f49aedfd | 225 | struct kboard *echo_kboard; |
1fc93d49 | 226 | |
59a84f8e GM |
227 | /* The buffer used for echoing. Set in echo_now, reset in |
228 | cancel_echoing. */ | |
229 | ||
c843d6c6 | 230 | Lisp_Object echo_message_buffer; |
59a84f8e | 231 | |
03361bcc RS |
232 | /* Nonzero means disregard local maps for the menu bar. */ |
233 | static int inhibit_local_menu_bar_menus; | |
234 | ||
80e4aa30 | 235 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
236 | int immediate_quit; |
237 | ||
fa90970d RS |
238 | /* The user's ERASE setting. */ |
239 | Lisp_Object Vtty_erase_char; | |
240 | ||
284f4730 | 241 | /* Character to recognize as the help char. */ |
7e85b935 | 242 | Lisp_Object Vhelp_char; |
284f4730 | 243 | |
ecb7cb34 KH |
244 | /* List of other event types to recognize as meaning "help". */ |
245 | Lisp_Object Vhelp_event_list; | |
246 | ||
284f4730 JB |
247 | /* Form to execute when help char is typed. */ |
248 | Lisp_Object Vhelp_form; | |
249 | ||
7e85b935 RS |
250 | /* Command to run when the help character follows a prefix key. */ |
251 | Lisp_Object Vprefix_help_command; | |
252 | ||
9f9c0e27 RS |
253 | /* List of items that should move to the end of the menu bar. */ |
254 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 255 | |
6526ab49 RS |
256 | /* Non-nil means show the equivalent key-binding for |
257 | any M-x command that has one. | |
258 | The value can be a length of time to show the message for. | |
259 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
260 | Lisp_Object Vsuggest_key_bindings; | |
261 | ||
00392ce6 MB |
262 | /* How long to display an echo-area message when the minibuffer is active. |
263 | If the value is not a number, such messages don't time out. */ | |
264 | Lisp_Object Vminibuffer_message_timeout; | |
265 | ||
284f4730 JB |
266 | /* Character that causes a quit. Normally C-g. |
267 | ||
268 | If we are running on an ordinary terminal, this must be an ordinary | |
269 | ASCII char, since we want to make it our interrupt character. | |
270 | ||
271 | If we are not running on an ordinary terminal, it still needs to be | |
272 | an ordinary ASCII char. This character needs to be recognized in | |
273 | the input interrupt handler. At this point, the keystroke is | |
274 | represented as a struct input_event, while the desired quit | |
275 | character is specified as a lispy event. The mapping from struct | |
276 | input_events to lispy events cannot run in an interrupt handler, | |
277 | and the reverse mapping is difficult for anything but ASCII | |
278 | keystrokes. | |
279 | ||
280 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
281 | ASCII character. */ | |
282 | int quit_char; | |
283 | ||
284 | extern Lisp_Object current_global_map; | |
285 | extern int minibuf_level; | |
286 | ||
9dd3131c RS |
287 | /* If non-nil, this is a map that overrides all other local maps. */ |
288 | Lisp_Object Voverriding_local_map; | |
289 | ||
d0a49716 RS |
290 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
291 | Lisp_Object Voverriding_local_map_menu_flag; | |
292 | ||
7f07d5ca RS |
293 | /* Keymap that defines special misc events that should |
294 | be processed immediately at a low level. */ | |
295 | Lisp_Object Vspecial_event_map; | |
296 | ||
284f4730 JB |
297 | /* Current depth in recursive edits. */ |
298 | int command_loop_level; | |
299 | ||
300 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 301 | EMACS_INT num_input_keys; |
284f4730 JB |
302 | |
303 | /* Last input character read as a command. */ | |
304 | Lisp_Object last_command_char; | |
305 | ||
7d6de002 RS |
306 | /* Last input character read as a command, not counting menus |
307 | reached by the mouse. */ | |
308 | Lisp_Object last_nonmenu_event; | |
309 | ||
284f4730 JB |
310 | /* Last input character read for any purpose. */ |
311 | Lisp_Object last_input_char; | |
312 | ||
dbc4e1c1 | 313 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 314 | Lisp_Object Vunread_command_events; |
284f4730 | 315 | |
7d18f9ae RS |
316 | /* If not Qnil, a list of objects to be read as subsequent command input |
317 | including input method processing. */ | |
318 | Lisp_Object Vunread_input_method_events; | |
319 | ||
320 | /* If not Qnil, a list of objects to be read as subsequent command input | |
321 | but NOT including input method processing. */ | |
322 | Lisp_Object Vunread_post_input_method_events; | |
323 | ||
86e5706b | 324 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 325 | EMACS_INT unread_command_char; |
86e5706b | 326 | |
cd21b839 JB |
327 | /* If not Qnil, this is a switch-frame event which we decided to put |
328 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 329 | next command input, after any unread_command_events. |
8f805655 JB |
330 | |
331 | read_key_sequence uses this to delay switch-frame events until the | |
332 | end of the key sequence; Fread_char uses it to put off switch-frame | |
333 | events until a non-ASCII event is acceptable as input. */ | |
334 | Lisp_Object unread_switch_frame; | |
cd21b839 | 335 | |
9fa4395d | 336 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 337 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 338 | |
284f4730 JB |
339 | /* Char to use as prefix when a meta character is typed in. |
340 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
341 | ||
342 | Lisp_Object meta_prefix_char; | |
343 | ||
344 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
345 | static int last_non_minibuf_size; | |
346 | ||
06ef7355 | 347 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
348 | static Lisp_Object Vauto_save_timeout; |
349 | ||
350 | /* Total number of times read_char has returned. */ | |
4abfba1f | 351 | int num_input_events; |
284f4730 | 352 | |
51172b6d | 353 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 354 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 355 | |
284f4730 JB |
356 | /* Auto-save automatically when this many characters have been typed |
357 | since the last time. */ | |
358 | ||
31ade731 | 359 | static EMACS_INT auto_save_interval; |
284f4730 | 360 | |
c43b1734 | 361 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
362 | |
363 | int last_auto_save; | |
364 | ||
284f4730 | 365 | /* The command being executed by the command loop. |
6c7178b9 KH |
366 | Commands may set this, and the value set will be copied into |
367 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
368 | Lisp_Object Vthis_command; |
369 | ||
370 | /* This is like Vthis_command, except that commands never set it. */ | |
371 | Lisp_Object real_this_command; | |
284f4730 | 372 | |
8b9940e6 KS |
373 | /* If the lookup of the command returns a binding, the original |
374 | command is stored in this-original-command. It is nil otherwise. */ | |
375 | Lisp_Object Vthis_original_command; | |
376 | ||
b453f72e KH |
377 | /* The value of point when the last command was executed. */ |
378 | int last_point_position; | |
379 | ||
047688cb RS |
380 | /* The buffer that was current when the last command was started. */ |
381 | Lisp_Object last_point_position_buffer; | |
382 | ||
4c52b668 KH |
383 | /* The frame in which the last input event occurred, or Qmacro if the |
384 | last event came from a macro. We use this to determine when to | |
385 | generate switch-frame events. This may be cleared by functions | |
386 | like Fselect_frame, to make sure that a switch-frame event is | |
387 | generated by the next character. */ | |
388 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
389 | |
390 | /* A user-visible version of the above, intended to allow users to | |
391 | figure out where the last event came from, if the event doesn't | |
392 | carry that information itself (i.e. if it was a character). */ | |
393 | Lisp_Object Vlast_event_frame; | |
394 | ||
1113d9db JB |
395 | /* The timestamp of the last input event we received from the X server. |
396 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
397 | unsigned long last_event_timestamp; |
398 | ||
399 | Lisp_Object Qself_insert_command; | |
400 | Lisp_Object Qforward_char; | |
401 | Lisp_Object Qbackward_char; | |
e58aa385 | 402 | Lisp_Object Qundefined; |
d925fb39 | 403 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
404 | |
405 | /* read_key_sequence stores here the command definition of the | |
406 | key sequence that it reads. */ | |
407 | Lisp_Object read_key_sequence_cmd; | |
408 | ||
39aab679 DL |
409 | /* Echo unfinished commands after this many seconds of pause. */ |
410 | Lisp_Object Vecho_keystrokes; | |
411 | ||
284f4730 JB |
412 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
413 | Lisp_Object Vtop_level; | |
414 | ||
415 | /* User-supplied string to translate input characters through. */ | |
416 | Lisp_Object Vkeyboard_translate_table; | |
417 | ||
418 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
419 | extern Lisp_Object Vfunction_key_map; | |
420 | ||
e0301c07 RS |
421 | /* Another keymap that maps key sequences into key sequences. |
422 | This one takes precedence over ordinary definitions. */ | |
423 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 424 | |
7d18f9ae RS |
425 | /* If non-nil, this implements the current input method. */ |
426 | Lisp_Object Vinput_method_function; | |
427 | Lisp_Object Qinput_method_function; | |
428 | ||
d5eecefb RS |
429 | /* When we call Vinput_method_function, |
430 | this holds the echo area message that was just erased. */ | |
431 | Lisp_Object Vinput_method_previous_message; | |
432 | ||
86e5706b RS |
433 | /* Non-nil means deactivate the mark at end of this command. */ |
434 | Lisp_Object Vdeactivate_mark; | |
435 | ||
48e416d4 RS |
436 | /* Menu bar specified in Lucid Emacs fashion. */ |
437 | ||
438 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
439 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
440 | ||
cf24f894 | 441 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 442 | |
86e5706b | 443 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
444 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
445 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 446 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
447 | /* Hook run after a command if there's no more input soon. */ |
448 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
449 | ||
450 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
31ade731 | 451 | EMACS_INT post_command_idle_delay; |
86e5706b | 452 | |
8a792f3a RS |
453 | /* List of deferred actions to be performed at a later time. |
454 | The precise format isn't relevant here; we just check whether it is nil. */ | |
455 | Lisp_Object Vdeferred_action_list; | |
456 | ||
457 | /* Function to call to handle deferred actions, when there are any. */ | |
458 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 459 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 460 | |
d5eecefb RS |
461 | Lisp_Object Qinput_method_exit_on_first_char; |
462 | Lisp_Object Qinput_method_use_echo_area; | |
463 | ||
284f4730 JB |
464 | /* File in which we write all commands we read. */ |
465 | FILE *dribble; | |
466 | ||
467 | /* Nonzero if input is available. */ | |
468 | int input_pending; | |
469 | ||
b04904fb RS |
470 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
471 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
472 | ||
284f4730 JB |
473 | int meta_key; |
474 | ||
3626fb1a GM |
475 | /* Non-zero means force key bindings update in parse_menu_item. */ |
476 | ||
477 | int update_menu_bindings; | |
478 | ||
284f4730 JB |
479 | extern char *pending_malloc_warning; |
480 | ||
beecf6a1 | 481 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 482 | |
beecf6a1 KH |
483 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
484 | ||
da8f7368 | 485 | /* Vector to GCPRO the Lisp objects referenced from kbd_buffer. |
beecf6a1 KH |
486 | |
487 | The interrupt-level event handlers will never enqueue an event on a | |
488 | frame which is not in Vframe_list, and once an event is dequeued, | |
489 | internal_last_event_frame or the event itself points to the frame. | |
490 | So that's all fine. | |
491 | ||
492 | But while the event is sitting in the queue, it's completely | |
493 | unprotected. Suppose the user types one command which will run for | |
494 | a while and then delete a frame, and then types another event at | |
495 | the frame that will be deleted, before the command gets around to | |
496 | it. Suppose there are no references to this frame elsewhere in | |
497 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
498 | have an event referring to a freed frame, which will crash Emacs | |
499 | when it is dequeued. | |
500 | ||
501 | Similar things happen when an event on a scroll bar is enqueued; the | |
502 | window may be deleted while the event is in the queue. | |
503 | ||
da8f7368 GM |
504 | So, we use this vector to protect the Lisp_Objects in the event |
505 | queue. That way, they'll be dequeued as dead frames or windows, | |
506 | but still valid Lisp objects. | |
beecf6a1 | 507 | |
3b8f9651 | 508 | If kbd_buffer[i].kind != NO_EVENT, then |
da8f7368 GM |
509 | |
510 | AREF (kbd_buffer_gcpro, 2 * i) == kbd_buffer[i].frame_or_window. | |
511 | AREF (kbd_buffer_gcpro, 2 * i + 1) == kbd_buffer[i].arg. */ | |
512 | ||
513 | static Lisp_Object kbd_buffer_gcpro; | |
beecf6a1 KH |
514 | |
515 | /* Pointer to next available character in kbd_buffer. | |
516 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 517 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
518 | next available char is in kbd_buffer[0]. */ |
519 | static struct input_event *kbd_fetch_ptr; | |
520 | ||
521 | /* Pointer to next place to store character in kbd_buffer. This | |
522 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
523 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 524 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
525 | |
526 | /* The above pair of variables forms a "queue empty" flag. When we | |
527 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
528 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
529 | there is input available iff the two pointers are not equal. | |
530 | ||
531 | Why not just have a flag set and cleared by the enqueuing and | |
532 | dequeuing functions? Such a flag could be screwed up by interrupts | |
533 | at inopportune times. */ | |
534 | ||
f3253854 | 535 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
536 | mouse moves, and motion events will appear in the input stream. |
537 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 538 | Lisp_Object do_mouse_tracking; |
284f4730 | 539 | |
284f4730 JB |
540 | /* Symbols to head events. */ |
541 | Lisp_Object Qmouse_movement; | |
3c370943 | 542 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 543 | Lisp_Object Qswitch_frame; |
bbdc2092 | 544 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
545 | Lisp_Object Qiconify_frame; |
546 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 547 | Lisp_Object Qselect_window; |
7ee32cda | 548 | Lisp_Object Qhelp_echo; |
cd21b839 | 549 | |
284f4730 JB |
550 | /* Symbols to denote kinds of events. */ |
551 | Lisp_Object Qfunction_key; | |
552 | Lisp_Object Qmouse_click; | |
742fbed7 | 553 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 | 554 | Lisp_Object Qmouse_wheel; |
742fbed7 AC |
555 | #endif |
556 | #ifdef WINDOWSNT | |
1161d367 | 557 | Lisp_Object Qlanguage_change; |
07de30b9 | 558 | #endif |
a24dc617 | 559 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
560 | Lisp_Object Qsave_session; |
561 | ||
284f4730 | 562 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
563 | |
564 | /* Properties of event headers. */ | |
565 | Lisp_Object Qevent_kind; | |
88cb0656 | 566 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 567 | |
e8886a1d RS |
568 | /* menu item parts */ |
569 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 570 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
571 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
572 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
573 | extern Lisp_Object Vdefine_key_rebound_commands; |
574 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 575 | |
0a7f1fc0 JB |
576 | /* An event header symbol HEAD may have a property named |
577 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
578 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
579 | mask of modifiers applied to it. If present, this is used to help | |
580 | speed up parse_modifiers. */ | |
581 | Lisp_Object Qevent_symbol_element_mask; | |
582 | ||
583 | /* An unmodified event header BASE may have a property named | |
584 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
585 | modified versions of BASE. If present, this helps speed up | |
586 | apply_modifiers. */ | |
587 | Lisp_Object Qmodifier_cache; | |
588 | ||
5ec75a55 | 589 | /* Symbols to use for parts of windows. */ |
284f4730 | 590 | Lisp_Object Qmode_line; |
e5d77022 | 591 | Lisp_Object Qvertical_line; |
3c370943 | 592 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 593 | Lisp_Object Qmenu_bar; |
7d60ad8a | 594 | extern Lisp_Object Qleft_margin, Qright_margin; |
5ec75a55 | 595 | |
f4255cd1 JB |
596 | Lisp_Object recursive_edit_unwind (), command_loop (); |
597 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 598 | Lisp_Object Qextended_command_history; |
c04cbc3b | 599 | EMACS_TIME timer_check (); |
284f4730 | 600 | |
f4385381 RS |
601 | extern Lisp_Object Vhistory_length; |
602 | ||
2c834fb3 KH |
603 | extern char *x_get_keysym_name (); |
604 | ||
8eb4d8ef RS |
605 | static void record_menu_key (); |
606 | ||
f4eef8b4 RS |
607 | Lisp_Object Qpolling_period; |
608 | ||
d9d4c147 | 609 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
610 | Lisp_Object Vtimer_list; |
611 | ||
d9d4c147 KH |
612 | /* List of idle time timers. Appears in order of next scheduled event. */ |
613 | Lisp_Object Vtimer_idle_list; | |
614 | ||
87dd9b9b RS |
615 | /* Incremented whenever a timer is run. */ |
616 | int timers_run; | |
617 | ||
a9f16aa9 KH |
618 | extern Lisp_Object Vprint_level, Vprint_length; |
619 | ||
ffd56f97 JB |
620 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
621 | happens. */ | |
622 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
623 | |
624 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
625 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
626 | int interrupt_input; | |
627 | ||
628 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
629 | int interrupts_deferred; | |
630 | ||
87dd9b9b | 631 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
632 | int flow_control; |
633 | ||
284f4730 JB |
634 | /* Allow m- file to inhibit use of FIONREAD. */ |
635 | #ifdef BROKEN_FIONREAD | |
636 | #undef FIONREAD | |
637 | #endif | |
638 | ||
639 | /* We are unable to use interrupts if FIONREAD is not available, | |
640 | so flush SIGIO so we won't try. */ | |
641 | #ifndef FIONREAD | |
642 | #ifdef SIGIO | |
643 | #undef SIGIO | |
644 | #endif | |
645 | #endif | |
646 | ||
e98a93eb | 647 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 648 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 649 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
650 | #define POLL_FOR_INPUT |
651 | #endif | |
adf5cb9c KH |
652 | |
653 | /* After a command is executed, if point is moved into a region that | |
654 | has specific properties (e.g. composition, display), we adjust | |
655 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 656 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 657 | variable is set to nil before reading a command. */ |
da8f7368 | 658 | |
adf5cb9c KH |
659 | Lisp_Object Vdisable_point_adjustment; |
660 | ||
661 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 662 | |
adf5cb9c KH |
663 | Lisp_Object Vglobal_disable_point_adjustment; |
664 | ||
fdbb67fe GM |
665 | /* The time when Emacs started being idle. */ |
666 | ||
667 | static EMACS_TIME timer_idleness_start_time; | |
668 | ||
3021d3a9 RS |
669 | /* After Emacs stops being idle, this saves the last value |
670 | of timer_idleness_start_time from when it was idle. */ | |
671 | ||
672 | static EMACS_TIME timer_last_idleness_start_time; | |
673 | ||
284f4730 JB |
674 | \f |
675 | /* Global variable declarations. */ | |
676 | ||
677 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
678 | void (*keyboard_init_hook) (); | |
679 | ||
0bbfdc25 GM |
680 | static int read_avail_input P_ ((int)); |
681 | static void get_input_pending P_ ((int *, int)); | |
20057d52 | 682 | static void get_filtered_input_pending P_ ((int *, int, int)); |
0bbfdc25 | 683 | static int readable_events P_ ((int)); |
20057d52 | 684 | static int readable_filtered_events P_ ((int, int)); |
0bbfdc25 GM |
685 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, |
686 | Lisp_Object, int *)); | |
8150596a | 687 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
688 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
689 | Lisp_Object *)); | |
690 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 691 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
692 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
693 | enum scroll_bar_part, | |
694 | Lisp_Object, Lisp_Object, | |
695 | unsigned long)); | |
514354e9 | 696 | #endif |
0bbfdc25 GM |
697 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
698 | Lisp_Object, char **, | |
699 | Lisp_Object *, unsigned)); | |
700 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
701 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 702 | static int parse_solitary_modifier (); |
0bbfdc25 | 703 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 704 | static void save_getcjmp (); |
0bbfdc25 | 705 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 706 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 707 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 708 | static void any_kboard_state P_ ((void)); |
284f4730 | 709 | |
8026024c KH |
710 | /* Nonzero means don't try to suspend even if the operating system seems |
711 | to support it. */ | |
712 | static int cannot_suspend; | |
713 | ||
284f4730 JB |
714 | /* Install the string STR as the beginning of the string of echoing, |
715 | so that it serves as a prompt for the next character. | |
716 | Also start echoing. */ | |
717 | ||
dfcf069d | 718 | void |
284f4730 | 719 | echo_prompt (str) |
a4ef85ee | 720 | Lisp_Object str; |
284f4730 | 721 | { |
678e9d18 | 722 | current_kboard->echo_string = str; |
0d121f7c | 723 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 724 | echo_now (); |
284f4730 JB |
725 | } |
726 | ||
df0f2ba1 | 727 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
728 | C can be a character, which is printed prettily ("M-C-x" and all that |
729 | jazz), or a symbol, whose name is printed. */ | |
730 | ||
dfcf069d | 731 | void |
284f4730 JB |
732 | echo_char (c) |
733 | Lisp_Object c; | |
734 | { | |
c5fdd383 | 735 | if (current_kboard->immediate_echo) |
284f4730 | 736 | { |
678e9d18 GM |
737 | int size = KEY_DESCRIPTION_SIZE + 100; |
738 | char *buffer = (char *) alloca (size); | |
739 | char *ptr = buffer; | |
740 | Lisp_Object echo_string; | |
284f4730 | 741 | |
0d121f7c GM |
742 | echo_string = current_kboard->echo_string; |
743 | ||
284f4730 | 744 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 745 | c = EVENT_HEAD (c); |
284f4730 | 746 | |
8c18cbfb | 747 | if (INTEGERP (c)) |
284f4730 | 748 | { |
678e9d18 | 749 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 750 | } |
8c18cbfb | 751 | else if (SYMBOLP (c)) |
284f4730 | 752 | { |
1b049b51 KR |
753 | Lisp_Object name = SYMBOL_NAME (c); |
754 | int nbytes = SBYTES (name); | |
678e9d18 | 755 | |
0d121f7c | 756 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
757 | { |
758 | int offset = ptr - buffer; | |
0d121f7c | 759 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
760 | buffer = (char *) alloca (size); |
761 | ptr = buffer + offset; | |
762 | } | |
763 | ||
1b049b51 KR |
764 | ptr += copy_text (SDATA (name), ptr, nbytes, |
765 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
766 | } |
767 | ||
0d121f7c | 768 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 769 | && help_char_p (c)) |
284f4730 | 770 | { |
678e9d18 GM |
771 | const char *text = " (Type ? for further options)"; |
772 | int len = strlen (text); | |
773 | ||
774 | if (size - (ptr - buffer) < len) | |
775 | { | |
776 | int offset = ptr - buffer; | |
777 | size += len; | |
778 | buffer = (char *) alloca (size); | |
779 | ptr = buffer + offset; | |
780 | } | |
781 | ||
782 | bcopy (text, ptr, len); | |
783 | ptr += len; | |
284f4730 JB |
784 | } |
785 | ||
0d121f7c GM |
786 | /* Replace a dash from echo_dash with a space, otherwise |
787 | add a space at the end as a separator between keys. */ | |
678e9d18 | 788 | if (STRINGP (echo_string) |
0d121f7c GM |
789 | && SCHARS (echo_string) > 0) |
790 | { | |
791 | Lisp_Object last_char, idx; | |
792 | ||
793 | idx = make_number (SCHARS (echo_string) - 1); | |
794 | last_char = Faref (echo_string, idx); | |
795 | ||
796 | if (XINT (last_char) == '-') | |
797 | Faset (echo_string, idx, make_number (' ')); | |
798 | else | |
799 | echo_string = concat2 (echo_string, build_string (" ")); | |
800 | } | |
678e9d18 GM |
801 | |
802 | current_kboard->echo_string | |
803 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 804 | |
3dbd9ee4 | 805 | echo_now (); |
284f4730 JB |
806 | } |
807 | } | |
808 | ||
809 | /* Temporarily add a dash to the end of the echo string if it's not | |
810 | empty, so that it serves as a mini-prompt for the very next character. */ | |
811 | ||
dfcf069d | 812 | void |
284f4730 JB |
813 | echo_dash () |
814 | { | |
678e9d18 GM |
815 | /* Do nothing if not echoing at all. */ |
816 | if (NILP (current_kboard->echo_string)) | |
817 | return; | |
818 | ||
c5fdd383 | 819 | if (!current_kboard->immediate_echo |
0d121f7c | 820 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 821 | return; |
678e9d18 | 822 | |
7a80a6f6 | 823 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 824 | if (current_kboard->echo_after_prompt |
0d121f7c | 825 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 826 | return; |
678e9d18 | 827 | |
284f4730 JB |
828 | /* Put a dash at the end of the buffer temporarily, |
829 | but make it go away when the next character is added. */ | |
678e9d18 GM |
830 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
831 | build_string ("-")); | |
3dbd9ee4 | 832 | echo_now (); |
284f4730 JB |
833 | } |
834 | ||
835 | /* Display the current echo string, and begin echoing if not already | |
836 | doing so. */ | |
837 | ||
07a59269 | 838 | void |
3dbd9ee4 | 839 | echo_now () |
284f4730 | 840 | { |
c5fdd383 | 841 | if (!current_kboard->immediate_echo) |
284f4730 JB |
842 | { |
843 | int i; | |
c5fdd383 | 844 | current_kboard->immediate_echo = 1; |
284f4730 JB |
845 | |
846 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
847 | { |
848 | Lisp_Object c; | |
849 | c = XVECTOR (this_command_keys)->contents[i]; | |
850 | if (! (EVENT_HAS_PARAMETERS (c) | |
851 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
852 | echo_char (c); | |
853 | } | |
284f4730 JB |
854 | echo_dash (); |
855 | } | |
856 | ||
857 | echoing = 1; | |
678e9d18 | 858 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 859 | SBYTES (current_kboard->echo_string), |
d5db4077 | 860 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
861 | echoing = 0; |
862 | ||
59a84f8e GM |
863 | /* Record in what buffer we echoed, and from which kboard. */ |
864 | echo_message_buffer = echo_area_buffer[0]; | |
865 | echo_kboard = current_kboard; | |
866 | ||
284f4730 JB |
867 | if (waiting_for_input && !NILP (Vquit_flag)) |
868 | quit_throw_to_read_char (); | |
869 | } | |
870 | ||
871 | /* Turn off echoing, for the start of a new command. */ | |
872 | ||
dfcf069d | 873 | void |
284f4730 JB |
874 | cancel_echoing () |
875 | { | |
c5fdd383 | 876 | current_kboard->immediate_echo = 0; |
c5fdd383 | 877 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 878 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
879 | ok_to_echo_at_next_pause = NULL; |
880 | echo_kboard = NULL; | |
881 | echo_message_buffer = Qnil; | |
284f4730 JB |
882 | } |
883 | ||
884 | /* Return the length of the current echo string. */ | |
885 | ||
886 | static int | |
887 | echo_length () | |
888 | { | |
678e9d18 | 889 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 890 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 891 | : 0); |
284f4730 JB |
892 | } |
893 | ||
894 | /* Truncate the current echo message to its first LEN chars. | |
895 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 896 | switches frames while entering a key sequence. */ |
284f4730 JB |
897 | |
898 | static void | |
678e9d18 GM |
899 | echo_truncate (nchars) |
900 | int nchars; | |
901 | { | |
902 | if (STRINGP (current_kboard->echo_string)) | |
903 | current_kboard->echo_string | |
904 | = Fsubstring (current_kboard->echo_string, | |
905 | make_number (0), make_number (nchars)); | |
906 | truncate_echo_area (nchars); | |
284f4730 JB |
907 | } |
908 | ||
909 | \f | |
910 | /* Functions for manipulating this_command_keys. */ | |
911 | static void | |
912 | add_command_key (key) | |
913 | Lisp_Object key; | |
914 | { | |
71918b75 RS |
915 | /* If reset-this-command-length was called recently, obey it now. |
916 | See the doc string of that function for an explanation of why. */ | |
917 | if (before_command_restore_flag) | |
918 | { | |
919 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
920 | if (this_command_key_count < this_single_command_key_start) |
921 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
922 | echo_truncate (before_command_echo_length_1); |
923 | before_command_restore_flag = 0; | |
924 | } | |
925 | ||
f4e05d97 GM |
926 | if (this_command_key_count >= ASIZE (this_command_keys)) |
927 | this_command_keys = larger_vector (this_command_keys, | |
928 | 2 * ASIZE (this_command_keys), | |
929 | Qnil); | |
6569cc8d | 930 | |
f4e05d97 GM |
931 | AREF (this_command_keys, this_command_key_count) = key; |
932 | ++this_command_key_count; | |
284f4730 | 933 | } |
f4e05d97 | 934 | |
284f4730 JB |
935 | \f |
936 | Lisp_Object | |
937 | recursive_edit_1 () | |
938 | { | |
aed13378 | 939 | int count = SPECPDL_INDEX (); |
284f4730 JB |
940 | Lisp_Object val; |
941 | ||
942 | if (command_loop_level > 0) | |
943 | { | |
944 | specbind (Qstandard_output, Qt); | |
945 | specbind (Qstandard_input, Qt); | |
946 | } | |
947 | ||
84265027 | 948 | #ifdef HAVE_X_WINDOWS |
526a058f | 949 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 950 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
951 | can take some time. Do not check for display_hourglass_p here, |
952 | because it could already be nil. */ | |
526a058f | 953 | cancel_hourglass (); |
84265027 GM |
954 | #endif |
955 | ||
980a2d69 GM |
956 | /* This function may have been called from a debugger called from |
957 | within redisplay, for instance by Edebugging a function called | |
958 | from fontification-functions. We want to allow redisplay in | |
959 | the debugging session. | |
960 | ||
961 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
962 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
963 | recursive edit, the original redisplay leading to the recursive | |
964 | edit will be unwound. The outcome should therefore be safe. */ | |
965 | specbind (Qinhibit_redisplay, Qnil); | |
966 | redisplaying_p = 0; | |
967 | ||
284f4730 JB |
968 | val = command_loop (); |
969 | if (EQ (val, Qt)) | |
970 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
971 | /* Handle throw from read_minibuf when using minibuffer |
972 | while it's active but we're in another window. */ | |
973 | if (STRINGP (val)) | |
974 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 975 | |
cb5df6ae | 976 | return unbind_to (count, Qnil); |
284f4730 JB |
977 | } |
978 | ||
979 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 980 | |
07a59269 | 981 | void |
284f4730 JB |
982 | record_auto_save () |
983 | { | |
c43b1734 | 984 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 985 | } |
5846638c RS |
986 | |
987 | /* Make an auto save happen as soon as possible at command level. */ | |
988 | ||
dfcf069d | 989 | void |
5846638c RS |
990 | force_auto_save_soon () |
991 | { | |
992 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
993 | |
994 | record_asynch_buffer_change (); | |
5846638c | 995 | } |
284f4730 | 996 | \f |
284f4730 | 997 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
998 | doc: /* Invoke the editor command loop recursively. |
999 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1000 | that tells this function to return. | |
1001 | Alternately, `(throw 'exit t)' makes this function signal an error. | |
1002 | This function is called by the editor initialization to begin editing. */) | |
1003 | () | |
284f4730 | 1004 | { |
aed13378 | 1005 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1006 | Lisp_Object buffer; |
284f4730 JB |
1007 | |
1008 | command_loop_level++; | |
1009 | update_mode_lines = 1; | |
1010 | ||
9ce50b1e GM |
1011 | if (command_loop_level |
1012 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1013 | buffer = Fcurrent_buffer (); | |
1014 | else | |
1015 | buffer = Qnil; | |
1016 | ||
1017 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1018 | like it is done in the splash screen display, we have to | |
1019 | make sure that we restore single_kboard as command_loop_1 | |
1020 | would have done if it were left normally. */ | |
284f4730 | 1021 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1022 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1023 | ||
284f4730 JB |
1024 | recursive_edit_1 (); |
1025 | return unbind_to (count, Qnil); | |
1026 | } | |
1027 | ||
1028 | Lisp_Object | |
9ce50b1e GM |
1029 | recursive_edit_unwind (info) |
1030 | Lisp_Object info; | |
284f4730 | 1031 | { |
9ce50b1e GM |
1032 | if (BUFFERP (XCAR (info))) |
1033 | Fset_buffer (XCAR (info)); | |
1034 | ||
1035 | if (NILP (XCDR (info))) | |
1036 | any_kboard_state (); | |
1037 | else | |
1038 | single_kboard_state (); | |
1039 | ||
284f4730 JB |
1040 | command_loop_level--; |
1041 | update_mode_lines = 1; | |
1042 | return Qnil; | |
1043 | } | |
9ce50b1e | 1044 | |
284f4730 | 1045 | \f |
604ccd1d | 1046 | static void |
1e8bd3da | 1047 | any_kboard_state () |
604ccd1d | 1048 | { |
1e8bd3da RS |
1049 | #ifdef MULTI_KBOARD |
1050 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1051 | it will right away be read by read_key_sequence, | |
1052 | and then if we do switch KBOARDS, it will go into the side | |
1053 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1054 | if (CONSP (Vunread_command_events)) |
4524b161 | 1055 | { |
c5fdd383 KH |
1056 | current_kboard->kbd_queue |
1057 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1058 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1059 | } |
604ccd1d | 1060 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1061 | #endif |
1062 | single_kboard = 0; | |
1063 | #endif | |
604ccd1d | 1064 | } |
1e8bd3da RS |
1065 | |
1066 | /* Switch to the single-kboard state, making current_kboard | |
1067 | the only KBOARD from which further input is accepted. */ | |
1068 | ||
1069 | void | |
1070 | single_kboard_state () | |
1071 | { | |
1072 | #ifdef MULTI_KBOARD | |
1073 | single_kboard = 1; | |
604ccd1d | 1074 | #endif |
1e8bd3da RS |
1075 | } |
1076 | ||
1077 | /* Maintain a stack of kboards, so other parts of Emacs | |
1078 | can switch temporarily to the kboard of a given frame | |
1079 | and then revert to the previous status. */ | |
1080 | ||
1081 | struct kboard_stack | |
1082 | { | |
1083 | KBOARD *kboard; | |
1084 | struct kboard_stack *next; | |
1085 | }; | |
1086 | ||
1087 | static struct kboard_stack *kboard_stack; | |
1088 | ||
1089 | void | |
1090 | push_frame_kboard (f) | |
1091 | FRAME_PTR f; | |
1092 | { | |
ab48365b | 1093 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1094 | struct kboard_stack *p |
1095 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1096 | ||
1097 | p->next = kboard_stack; | |
1098 | p->kboard = current_kboard; | |
1099 | kboard_stack = p; | |
1100 | ||
1101 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1102 | #endif |
1e8bd3da RS |
1103 | } |
1104 | ||
1105 | void | |
1106 | pop_frame_kboard () | |
1107 | { | |
ab48365b | 1108 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1109 | struct kboard_stack *p = kboard_stack; |
1110 | current_kboard = p->kboard; | |
1111 | kboard_stack = p->next; | |
1112 | xfree (p); | |
ab48365b | 1113 | #endif |
1e8bd3da RS |
1114 | } |
1115 | \f | |
1116 | /* Handle errors that are not handled at inner levels | |
1117 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1118 | |
284f4730 JB |
1119 | Lisp_Object |
1120 | cmd_error (data) | |
1121 | Lisp_Object data; | |
a1341f75 | 1122 | { |
a9f16aa9 | 1123 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1124 | char macroerror[50]; |
1125 | ||
160552c5 RS |
1126 | #ifdef HAVE_X_WINDOWS |
1127 | if (display_hourglass_p) | |
1128 | cancel_hourglass (); | |
1129 | #endif | |
1130 | ||
e881d8b2 RS |
1131 | if (!NILP (executing_macro)) |
1132 | { | |
1133 | if (executing_macro_iterations == 1) | |
1134 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1135 | else | |
1136 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1137 | executing_macro_iterations); | |
1138 | } | |
1139 | else | |
1140 | *macroerror = 0; | |
a9f16aa9 | 1141 | |
a1341f75 RS |
1142 | Vstandard_output = Qt; |
1143 | Vstandard_input = Qt; | |
1144 | Vexecuting_macro = Qnil; | |
9f58e89e | 1145 | executing_macro = Qnil; |
d8bcf58e | 1146 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1147 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1148 | cancel_echoing (); |
a9f16aa9 KH |
1149 | |
1150 | /* Avoid unquittable loop if data contains a circular list. */ | |
1151 | old_level = Vprint_level; | |
1152 | old_length = Vprint_length; | |
0c04a67e RS |
1153 | XSETFASTINT (Vprint_level, 10); |
1154 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1155 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1156 | Vprint_level = old_level; |
1157 | Vprint_length = old_length; | |
a1341f75 RS |
1158 | |
1159 | Vquit_flag = Qnil; | |
1160 | ||
1161 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1162 | #ifdef MULTI_KBOARD |
1e8bd3da | 1163 | any_kboard_state (); |
ff4b06d3 | 1164 | #endif |
a1341f75 RS |
1165 | |
1166 | return make_number (0); | |
1167 | } | |
1168 | ||
301738ed RS |
1169 | /* Take actions on handling an error. DATA is the data that describes |
1170 | the error. | |
1171 | ||
1172 | CONTEXT is a C-string containing ASCII characters only which | |
1173 | describes the context in which the error happened. If we need to | |
1174 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1175 | string. */ | |
1176 | ||
07a59269 | 1177 | void |
a1341f75 RS |
1178 | cmd_error_internal (data, context) |
1179 | Lisp_Object data; | |
1180 | char *context; | |
284f4730 | 1181 | { |
284f4730 | 1182 | Lisp_Object stream; |
7ee32cda | 1183 | int kill_emacs_p = 0; |
788f89eb | 1184 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1185 | |
1186 | Vquit_flag = Qnil; | |
1187 | Vinhibit_quit = Qt; | |
985f9f66 | 1188 | clear_message (1, 0); |
284f4730 | 1189 | |
ff11dfa1 | 1190 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1191 | yet, or we're not interactive, it's best to dump this message out |
1192 | to stderr and exit. */ | |
788f89eb | 1193 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1194 | /* This is the case of the frame dumped with Emacs, when we're |
1195 | running under a window system. */ | |
1196 | || (!NILP (Vwindow_system) | |
1197 | && !inhibit_window_system | |
788f89eb | 1198 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1199 | || noninteractive) |
7ee32cda GM |
1200 | { |
1201 | stream = Qexternal_debugging_output; | |
1202 | kill_emacs_p = 1; | |
1203 | } | |
284f4730 JB |
1204 | else |
1205 | { | |
1206 | Fdiscard_input (); | |
dc4854ce | 1207 | message_log_maybe_newline (); |
284f4730 JB |
1208 | bitch_at_user (); |
1209 | stream = Qt; | |
1210 | } | |
1211 | ||
dc4854ce RS |
1212 | /* The immediate context is not interesting for Quits, |
1213 | since they are asyncronous. */ | |
1214 | if (EQ (XCAR (data), Qquit)) | |
1215 | Vsignaling_function = Qnil; | |
1216 | ||
1217 | print_error_message (data, stream, context, Vsignaling_function); | |
a1341f75 | 1218 | |
dc4854ce | 1219 | Vsignaling_function = Qnil; |
284f4730 | 1220 | |
ff11dfa1 | 1221 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1222 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1223 | if (kill_emacs_p) |
284f4730 JB |
1224 | { |
1225 | Fterpri (stream); | |
1226 | Fkill_emacs (make_number (-1)); | |
1227 | } | |
284f4730 JB |
1228 | } |
1229 | \f | |
1230 | Lisp_Object command_loop_1 (); | |
1231 | Lisp_Object command_loop_2 (); | |
1232 | Lisp_Object top_level_1 (); | |
1233 | ||
1234 | /* Entry to editor-command-loop. | |
1235 | This level has the catches for exiting/returning to editor command loop. | |
1236 | It returns nil to exit recursive edit, t to abort it. */ | |
1237 | ||
1238 | Lisp_Object | |
1239 | command_loop () | |
1240 | { | |
1241 | if (command_loop_level > 0 || minibuf_level > 0) | |
1242 | { | |
07ba902e RS |
1243 | Lisp_Object val; |
1244 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1245 | executing_macro = Qnil; |
1246 | return val; | |
284f4730 JB |
1247 | } |
1248 | else | |
1249 | while (1) | |
1250 | { | |
1251 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1252 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1253 | executing_macro = Qnil; |
df0f2ba1 | 1254 | |
284f4730 JB |
1255 | /* End of file in -batch run causes exit here. */ |
1256 | if (noninteractive) | |
1257 | Fkill_emacs (Qt); | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | /* Here we catch errors in execution of commands within the | |
1262 | editing loop, and reenter the editing loop. | |
1263 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1264 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1265 | returned due to end of file (or end of kbd macro). */ |
1266 | ||
1267 | Lisp_Object | |
1268 | command_loop_2 () | |
1269 | { | |
1270 | register Lisp_Object val; | |
1271 | ||
1272 | do | |
1273 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1274 | while (!NILP (val)); | |
1275 | ||
1276 | return Qnil; | |
1277 | } | |
1278 | ||
1279 | Lisp_Object | |
1280 | top_level_2 () | |
1281 | { | |
1282 | return Feval (Vtop_level); | |
1283 | } | |
1284 | ||
1285 | Lisp_Object | |
1286 | top_level_1 () | |
1287 | { | |
1288 | /* On entry to the outer level, run the startup file */ | |
1289 | if (!NILP (Vtop_level)) | |
1290 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1291 | else if (!NILP (Vpurify_flag)) | |
1292 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1293 | else | |
1294 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1295 | return Qnil; | |
1296 | } | |
1297 | ||
1298 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1299 | doc: /* Exit all recursive editing levels. */) |
1300 | () | |
284f4730 | 1301 | { |
2c9cf2c8 | 1302 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1303 | if (display_hourglass_p) |
1304 | cancel_hourglass (); | |
2c9cf2c8 | 1305 | #endif |
8c907a56 | 1306 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1307 | } |
1308 | ||
1309 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1310 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1311 | () | |
284f4730 JB |
1312 | { |
1313 | if (command_loop_level > 0 || minibuf_level > 0) | |
1314 | Fthrow (Qexit, Qnil); | |
1315 | ||
1316 | error ("No recursive edit is in progress"); | |
8c907a56 | 1317 | return Qnil; |
284f4730 JB |
1318 | } |
1319 | ||
1320 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1321 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1322 | () | |
284f4730 JB |
1323 | { |
1324 | if (command_loop_level > 0 || minibuf_level > 0) | |
1325 | Fthrow (Qexit, Qt); | |
1326 | ||
1327 | error ("No recursive edit is in progress"); | |
8c907a56 | 1328 | return Qnil; |
284f4730 JB |
1329 | } |
1330 | \f | |
1331 | /* This is the actual command reading loop, | |
1332 | sans error-handling encapsulation. */ | |
1333 | ||
a7b772c1 GM |
1334 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1335 | int, int, int)); | |
1336 | void safe_run_hooks P_ ((Lisp_Object)); | |
1337 | static void adjust_point_for_property P_ ((int)); | |
284f4730 JB |
1338 | |
1339 | Lisp_Object | |
1340 | command_loop_1 () | |
1341 | { | |
03cee6ae GM |
1342 | Lisp_Object cmd; |
1343 | int lose; | |
284f4730 JB |
1344 | int nonundocount; |
1345 | Lisp_Object keybuf[30]; | |
1346 | int i; | |
284f4730 | 1347 | int no_direct; |
86e5706b | 1348 | int prev_modiff; |
8c907a56 | 1349 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1350 | #ifdef MULTI_KBOARD |
1e8bd3da | 1351 | int was_locked = single_kboard; |
bded54dd | 1352 | #endif |
284f4730 | 1353 | |
d9b641bb | 1354 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1355 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1356 | Vdeactivate_mark = Qnil; |
284f4730 | 1357 | waiting_for_input = 0; |
df0f2ba1 | 1358 | cancel_echoing (); |
284f4730 | 1359 | |
284f4730 | 1360 | nonundocount = 0; |
284f4730 | 1361 | this_command_key_count = 0; |
6321824f | 1362 | this_single_command_key_start = 0; |
284f4730 | 1363 | |
325309f5 | 1364 | if (NILP (Vmemory_full)) |
59aadc81 | 1365 | { |
10ffcb64 RS |
1366 | /* Make sure this hook runs after commands that get errors and |
1367 | throw to top level. */ | |
1368 | /* Note that the value cell will never directly contain nil | |
1369 | if the symbol is a local variable. */ | |
1370 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1371 | safe_run_hooks (Qpost_command_hook); | |
1372 | ||
1373 | /* If displaying a message, resize the echo area window to fit | |
1374 | that message's size exactly. */ | |
1375 | if (!NILP (echo_area_buffer[0])) | |
1376 | resize_echo_area_exactly (); | |
1377 | ||
1378 | if (!NILP (Vdeferred_action_list)) | |
1379 | call0 (Vdeferred_action_function); | |
1380 | ||
1381 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1382 | { | |
1383 | if (NILP (Vunread_command_events) | |
1384 | && NILP (Vunread_input_method_events) | |
1385 | && NILP (Vunread_post_input_method_events) | |
1386 | && NILP (Vexecuting_macro) | |
1387 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1388 | safe_run_hooks (Qpost_command_idle_hook); | |
1389 | } | |
59aadc81 RS |
1390 | } |
1391 | ||
10ffcb64 RS |
1392 | Vmemory_full = Qnil; |
1393 | ||
51d5a2c9 | 1394 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1395 | current_kboard->Vlast_command = Vthis_command; |
1396 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1397 | |
284f4730 JB |
1398 | while (1) |
1399 | { | |
788f89eb | 1400 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1401 | Fkill_emacs (Qnil); |
1402 | ||
284f4730 JB |
1403 | /* Make sure the current window's buffer is selected. */ |
1404 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1405 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1406 | ||
1407 | /* Display any malloc warning that just came out. Use while because | |
1408 | displaying one warning can cause another. */ | |
1409 | ||
1410 | while (pending_malloc_warning) | |
1411 | display_malloc_warning (); | |
1412 | ||
1413 | no_direct = 0; | |
1414 | ||
86e5706b RS |
1415 | Vdeactivate_mark = Qnil; |
1416 | ||
284f4730 | 1417 | /* If minibuffer on and echo area in use, |
00392ce6 | 1418 | wait a short time and redraw minibuffer. */ |
284f4730 | 1419 | |
7ee32cda | 1420 | if (minibuf_level |
985f9f66 | 1421 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1422 | && EQ (minibuf_window, echo_area_window) |
1423 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1424 | { |
f1bed6d8 RS |
1425 | /* Bind inhibit-quit to t so that C-g gets read in |
1426 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1427 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1428 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1429 | |
00392ce6 | 1430 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1431 | /* Clear the echo area. */ |
301738ed | 1432 | message2 (0, 0, 0); |
cdb9d665 | 1433 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1434 | |
db08707d RS |
1435 | unbind_to (count, Qnil); |
1436 | ||
e6aa7813 | 1437 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1438 | if (!NILP (Vquit_flag)) |
1439 | { | |
1440 | Vquit_flag = Qnil; | |
24597608 | 1441 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1442 | } |
1443 | } | |
1444 | ||
1445 | #ifdef C_ALLOCA | |
ff4b06d3 | 1446 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1447 | /* Since we can free the most stuff here. */ |
1448 | #endif /* C_ALLOCA */ | |
1449 | ||
8f805655 | 1450 | #if 0 |
8f805655 JB |
1451 | /* Select the frame that the last event came from. Usually, |
1452 | switch-frame events will take care of this, but if some lisp | |
1453 | code swallows a switch-frame event, we'll fix things up here. | |
1454 | Is this a good idea? */ | |
8c18cbfb | 1455 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1456 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1457 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1458 | #endif |
48e416d4 RS |
1459 | /* If it has changed current-menubar from previous value, |
1460 | really recompute the menubar from the value. */ | |
a646e520 RS |
1461 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1462 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1463 | call0 (Qrecompute_lucid_menubar); |
1464 | ||
71918b75 RS |
1465 | before_command_key_count = this_command_key_count; |
1466 | before_command_echo_length = echo_length (); | |
1467 | ||
d5eecefb RS |
1468 | Vthis_command = Qnil; |
1469 | real_this_command = Qnil; | |
d7437ef6 | 1470 | |
8f805655 | 1471 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1472 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1473 | Qnil, 0, 1, 1); |
8f805655 | 1474 | |
6fac1409 | 1475 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1476 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1477 | Fkill_emacs (Qnil); |
6fac1409 RS |
1478 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1479 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1480 | ||
8f805655 JB |
1481 | ++num_input_keys; |
1482 | ||
284f4730 JB |
1483 | /* Now we have read a key sequence of length I, |
1484 | or else I is 0 and we found end of file. */ | |
1485 | ||
1486 | if (i == 0) /* End of file -- happens only in */ | |
1487 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1488 | /* -1 means read_key_sequence got a menu that was rejected. |
1489 | Just loop around and read another command. */ | |
1490 | if (i == -1) | |
1491 | { | |
1492 | cancel_echoing (); | |
1493 | this_command_key_count = 0; | |
6321824f | 1494 | this_single_command_key_start = 0; |
ff4b06d3 | 1495 | goto finalize; |
dcc408a0 | 1496 | } |
284f4730 | 1497 | |
284f4730 JB |
1498 | last_command_char = keybuf[i - 1]; |
1499 | ||
75c0b143 RS |
1500 | /* If the previous command tried to force a specific window-start, |
1501 | forget about that, in case this command moves point far away | |
c422836d KH |
1502 | from that position. But also throw away beg_unchanged and |
1503 | end_unchanged information in that case, so that redisplay will | |
1504 | update the whole window properly. */ | |
1505 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1506 | { | |
9351ebd0 | 1507 | struct buffer *b; |
c422836d | 1508 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1509 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1510 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1511 | } |
75c0b143 | 1512 | |
284f4730 JB |
1513 | cmd = read_key_sequence_cmd; |
1514 | if (!NILP (Vexecuting_macro)) | |
1515 | { | |
1516 | if (!NILP (Vquit_flag)) | |
1517 | { | |
1518 | Vexecuting_macro = Qt; | |
1519 | QUIT; /* Make some noise. */ | |
1520 | /* Will return since macro now empty. */ | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1525 | cases identified below. */ |
86e5706b RS |
1526 | prev_buffer = current_buffer; |
1527 | prev_modiff = MODIFF; | |
8746da95 | 1528 | last_point_position = PT; |
18cd2eeb | 1529 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1530 | |
adf5cb9c KH |
1531 | /* By default, we adjust point to a boundary of a region that |
1532 | has such a property that should be treated intangible | |
1533 | (e.g. composition, display). But, some commands will set | |
1534 | this variable differently. */ | |
1535 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1536 | |
be2488ca GM |
1537 | /* Process filters and timers may have messed with deactivate-mark. |
1538 | reset it before we execute the command. */ | |
1539 | Vdeactivate_mark = Qnil; | |
1540 | ||
8b9940e6 KS |
1541 | /* Remap command through active keymaps */ |
1542 | Vthis_original_command = cmd; | |
a34cb674 | 1543 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1544 | { |
1545 | Lisp_Object cmd1; | |
a34cb674 | 1546 | if (cmd1 = Fremap_command (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1547 | cmd = cmd1; |
1548 | } | |
1549 | ||
284f4730 JB |
1550 | /* Execute the command. */ |
1551 | ||
d5eecefb RS |
1552 | Vthis_command = cmd; |
1553 | real_this_command = cmd; | |
a98ea3f9 RS |
1554 | /* Note that the value cell will never directly contain nil |
1555 | if the symbol is a local variable. */ | |
e98a93eb | 1556 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1557 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1558 | |
d5eecefb | 1559 | if (NILP (Vthis_command)) |
284f4730 JB |
1560 | { |
1561 | /* nil means key is undefined. */ | |
1562 | bitch_at_user (); | |
c5fdd383 | 1563 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1564 | update_mode_lines = 1; |
d8bcf58e | 1565 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1566 | } |
1567 | else | |
1568 | { | |
d8bcf58e | 1569 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1570 | { |
75045dcb RS |
1571 | /* In case we jump to directly_done. */ |
1572 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1573 | ||
284f4730 JB |
1574 | /* Recognize some common commands in common situations and |
1575 | do them directly. */ | |
d5eecefb | 1576 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1577 | { |
51ad8a68 | 1578 | struct Lisp_Char_Table *dp |
284f4730 | 1579 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1580 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1581 | SET_PT (PT + 1); |
0f7a8fee | 1582 | if ((dp |
82ba47d7 | 1583 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1584 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1585 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1586 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1587 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1588 | /* To extract the case of continuation on |
1589 | wide-column characters. */ | |
8458ede6 | 1590 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1591 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1592 | >= MODIFF) | |
598ba4c7 RS |
1593 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1594 | >= OVERLAY_MODIFF) | |
284f4730 | 1595 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1596 | == PT - 1) |
284f4730 JB |
1597 | && !windows_or_buffers_changed |
1598 | && EQ (current_buffer->selective_display, Qnil) | |
1599 | && !detect_input_pending () | |
962ae636 | 1600 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1601 | && NILP (Vexecuting_macro)) |
e35b6123 | 1602 | direct_output_forward_char (1); |
284f4730 JB |
1603 | goto directly_done; |
1604 | } | |
d5eecefb | 1605 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1606 | { |
51ad8a68 | 1607 | struct Lisp_Char_Table *dp |
284f4730 | 1608 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1609 | SET_PT (PT - 1); |
aaf35234 | 1610 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1611 | if ((dp |
ca873d73 | 1612 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1613 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1614 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1615 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1616 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1617 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1618 | >= MODIFF) | |
598ba4c7 RS |
1619 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1620 | >= OVERLAY_MODIFF) | |
284f4730 | 1621 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1622 | == PT + 1) |
284f4730 JB |
1623 | && !windows_or_buffers_changed |
1624 | && EQ (current_buffer->selective_display, Qnil) | |
1625 | && !detect_input_pending () | |
962ae636 | 1626 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1627 | && NILP (Vexecuting_macro)) |
e35b6123 | 1628 | direct_output_forward_char (-1); |
284f4730 JB |
1629 | goto directly_done; |
1630 | } | |
d5eecefb | 1631 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1632 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1633 | && INTEGERP (last_command_char)) |
284f4730 | 1634 | { |
89599794 | 1635 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1636 | int value; |
fc9cce4e RS |
1637 | if (NILP (Vexecuting_macro) |
1638 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1639 | { |
1640 | if (!nonundocount || nonundocount >= 20) | |
1641 | { | |
1642 | Fundo_boundary (); | |
1643 | nonundocount = 0; | |
1644 | } | |
1645 | nonundocount++; | |
1646 | } | |
7ee32cda | 1647 | |
fc9cce4e RS |
1648 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1649 | < MODIFF) | |
598ba4c7 RS |
1650 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1651 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1652 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1653 | != PT) | |
4c61f38e | 1654 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1655 | || windows_or_buffers_changed |
1656 | || !EQ (current_buffer->selective_display, Qnil) | |
1657 | || detect_input_pending () | |
962ae636 | 1658 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1659 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1660 | |
fc9cce4e | 1661 | value = internal_self_insert (c, 0); |
7ee32cda | 1662 | |
fc9cce4e RS |
1663 | if (value == 2) |
1664 | nonundocount = 0; | |
1665 | ||
7ee32cda GM |
1666 | /* VALUE == 1 when AFTER-CHANGE functions are |
1667 | installed which is the case most of the time | |
1668 | because FONT-LOCK installs one. */ | |
1669 | if (!lose && !value) | |
e35b6123 | 1670 | direct_output_for_insert (c); |
284f4730 JB |
1671 | goto directly_done; |
1672 | } | |
1673 | } | |
1674 | ||
1675 | /* Here for a command that isn't executed directly */ | |
1676 | ||
7ee32cda | 1677 | #ifdef HAVE_X_WINDOWS |
e1204d39 RS |
1678 | if (display_hourglass_p |
1679 | && NILP (Vexecuting_macro)) | |
526a058f | 1680 | start_hourglass (); |
7ee32cda GM |
1681 | #endif |
1682 | ||
284f4730 | 1683 | nonundocount = 0; |
d8bcf58e | 1684 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1685 | Fundo_boundary (); |
d5eecefb | 1686 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1687 | |
1688 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1689 | /* Do not check display_hourglass_p here, because |
1690 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1691 | hourglass cursor anyway. |
1692 | But don't cancel the hourglass within a macro | |
1693 | just because a command in the macro finishes. */ | |
1694 | if (NILP (Vexecuting_macro)) | |
1695 | cancel_hourglass (); | |
d0c48478 | 1696 | #endif |
284f4730 | 1697 | } |
a764a753 | 1698 | directly_done: ; |
75045dcb | 1699 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1700 | |
84ee6048 RS |
1701 | /* Note that the value cell will never directly contain nil |
1702 | if the symbol is a local variable. */ | |
1703 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1704 | safe_run_hooks (Qpost_command_hook); | |
1705 | ||
8f12e41d GM |
1706 | /* If displaying a message, resize the echo area window to fit |
1707 | that message's size exactly. */ | |
1708 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1709 | resize_echo_area_exactly (); |
8f12e41d | 1710 | |
84ee6048 RS |
1711 | if (!NILP (Vdeferred_action_list)) |
1712 | safe_run_hooks (Qdeferred_action_function); | |
1713 | ||
1714 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1715 | { | |
1716 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1717 | && NILP (Vunread_input_method_events) |
1718 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1719 | && NILP (Vexecuting_macro) |
1720 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1721 | safe_run_hooks (Qpost_command_idle_hook); | |
1722 | } | |
1723 | ||
284f4730 | 1724 | /* If there is a prefix argument, |
6c7178b9 KH |
1725 | 1) We don't want Vlast_command to be ``universal-argument'' |
1726 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1727 | 2) we want to leave echoing on so that the prefix will be |
1728 | echoed as part of this key sequence, so don't call | |
1729 | cancel_echoing, and | |
1730 | 3) we want to leave this_command_key_count non-zero, so that | |
1731 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1732 | not echo it a second time. |
1733 | ||
1734 | If the command didn't actually create a prefix arg, | |
1735 | but is merely a frame event that is transparent to prefix args, | |
1736 | then the above doesn't apply. */ | |
1737 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1738 | { |
d5eecefb RS |
1739 | current_kboard->Vlast_command = Vthis_command; |
1740 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1741 | cancel_echoing (); |
1742 | this_command_key_count = 0; | |
6321824f | 1743 | this_single_command_key_start = 0; |
284f4730 | 1744 | } |
86e5706b | 1745 | |
88ce066e | 1746 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1747 | { |
1748 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1749 | { | |
2e1a49ad SM |
1750 | /* We could also call `deactivate'mark'. */ |
1751 | if (EQ (Vtransient_mark_mode, Qlambda)) | |
1752 | Vtransient_mark_mode = Qnil; | |
1753 | else | |
1754 | { | |
1755 | current_buffer->mark_active = Qnil; | |
1756 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1757 | } | |
86e5706b RS |
1758 | } |
1759 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1760 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1761 | } | |
ff4b06d3 KH |
1762 | |
1763 | finalize: | |
adf5cb9c KH |
1764 | |
1765 | if (current_buffer == prev_buffer | |
1766 | && last_point_position != PT | |
1767 | && NILP (Vdisable_point_adjustment) | |
1768 | && NILP (Vglobal_disable_point_adjustment)) | |
1769 | adjust_point_for_property (last_point_position); | |
1770 | ||
ff4b06d3 KH |
1771 | /* Install chars successfully executed in kbd macro. */ |
1772 | ||
d8bcf58e KH |
1773 | if (!NILP (current_kboard->defining_kbd_macro) |
1774 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1775 | finalize_kbd_macro_chars (); |
1776 | ||
c5fdd383 | 1777 | #ifdef MULTI_KBOARD |
604ccd1d | 1778 | if (!was_locked) |
1e8bd3da | 1779 | any_kboard_state (); |
ff4b06d3 | 1780 | #endif |
284f4730 JB |
1781 | } |
1782 | } | |
1c9784c9 | 1783 | |
adf5cb9c KH |
1784 | extern Lisp_Object Qcomposition, Qdisplay; |
1785 | ||
1786 | /* Adjust point to a boundary of a region that has such a property | |
1787 | that should be treated intangible. For the moment, we check | |
1788 | `composition' and `display' property. LAST_PT is the last position | |
1789 | of point. */ | |
1790 | ||
1791 | static void | |
1792 | adjust_point_for_property (last_pt) | |
1793 | int last_pt; | |
1794 | { | |
1795 | int start, end; | |
1796 | Lisp_Object val; | |
1797 | int check_composition = 1, check_display = 1; | |
1798 | ||
1799 | while (check_composition || check_display) | |
1800 | { | |
1801 | if (check_composition | |
1802 | && PT > BEGV && PT < ZV | |
1803 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1804 | && COMPOSITION_VALID_P (start, end, val) | |
1805 | && start < PT && end > PT | |
1806 | && (last_pt <= start || last_pt >= end)) | |
1807 | { | |
1808 | if (PT < last_pt) | |
1809 | SET_PT (start); | |
1810 | else | |
1811 | SET_PT (end); | |
1812 | check_display = 1; | |
1813 | } | |
1814 | check_composition = 0; | |
1815 | if (check_display | |
1816 | && PT > BEGV && PT < ZV | |
1817 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
3e9ac4b7 | 1818 | && display_prop_intangible_p (val) |
adf5cb9c KH |
1819 | && start < PT && end > PT |
1820 | && (last_pt <= start || last_pt >= end)) | |
1821 | { | |
1822 | if (PT < last_pt) | |
1823 | SET_PT (start); | |
1824 | else | |
1825 | SET_PT (end); | |
1826 | check_composition = 1; | |
1827 | } | |
1828 | check_display = 0; | |
1829 | } | |
1830 | } | |
1831 | ||
0bc3db2b RS |
1832 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1833 | ||
1834 | static Lisp_Object | |
1835 | safe_run_hooks_1 (hook) | |
1836 | Lisp_Object hook; | |
1837 | { | |
1838 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1839 | } | |
1840 | ||
1841 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1842 | ||
1843 | static Lisp_Object | |
1844 | safe_run_hooks_error (data) | |
1845 | Lisp_Object data; | |
1846 | { | |
30690496 | 1847 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1848 | } |
1849 | ||
1c9784c9 KH |
1850 | /* If we get an error while running the hook, cause the hook variable |
1851 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1852 | to mysteriously evaporate. */ | |
0bc3db2b | 1853 | |
68f297c5 | 1854 | void |
1c9784c9 | 1855 | safe_run_hooks (hook) |
a98ea3f9 | 1856 | Lisp_Object hook; |
1c9784c9 | 1857 | { |
aed13378 | 1858 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
1859 | specbind (Qinhibit_quit, hook); |
1860 | ||
e702932d | 1861 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1862 | |
1863 | unbind_to (count, Qnil); | |
1864 | } | |
8a9f5d3c | 1865 | |
284f4730 | 1866 | \f |
8a9f5d3c GM |
1867 | /* Number of seconds between polling for input. This is a Lisp |
1868 | variable that can be bound. */ | |
1869 | ||
31ade731 | 1870 | EMACS_INT polling_period; |
284f4730 | 1871 | |
eb8c3be9 | 1872 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1873 | |
284f4730 JB |
1874 | int poll_suppress_count; |
1875 | ||
8a9f5d3c GM |
1876 | /* Asynchronous timer for polling. */ |
1877 | ||
1878 | struct atimer *poll_timer; | |
1879 | ||
284f4730 | 1880 | |
36922b18 RS |
1881 | #ifdef POLL_FOR_INPUT |
1882 | ||
8a9f5d3c GM |
1883 | /* Poll for input, so what we catch a C-g if it comes in. This |
1884 | function is called from x_make_frame_visible, see comment | |
1885 | there. */ | |
284f4730 | 1886 | |
8a9f5d3c GM |
1887 | void |
1888 | poll_for_input_1 () | |
284f4730 | 1889 | { |
9ac0d9e0 JB |
1890 | if (interrupt_input_blocked == 0 |
1891 | && !waiting_for_input) | |
1892 | read_avail_input (0); | |
284f4730 JB |
1893 | } |
1894 | ||
8a9f5d3c GM |
1895 | /* Timer callback function for poll_timer. TIMER is equal to |
1896 | poll_timer. */ | |
1897 | ||
1898 | void | |
1899 | poll_for_input (timer) | |
1900 | struct atimer *timer; | |
1901 | { | |
1902 | if (poll_suppress_count == 0) | |
1903 | poll_for_input_1 (); | |
1904 | } | |
1905 | ||
1906 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1907 | |
1908 | /* Begin signals to poll for input, if they are appropriate. | |
1909 | This function is called unconditionally from various places. */ | |
1910 | ||
07a59269 | 1911 | void |
284f4730 JB |
1912 | start_polling () |
1913 | { | |
1914 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1915 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1916 | { |
8a9f5d3c GM |
1917 | /* Turn alarm handling on unconditionally. It might have |
1918 | been turned off in process.c. */ | |
1919 | turn_on_atimers (1); | |
1920 | ||
1921 | /* If poll timer doesn't exist, are we need one with | |
1922 | a different interval, start a new one. */ | |
1923 | if (poll_timer == NULL | |
1924 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1925 | { |
8a9f5d3c GM |
1926 | EMACS_TIME interval; |
1927 | ||
1928 | if (poll_timer) | |
1929 | cancel_atimer (poll_timer); | |
1930 | ||
1931 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1932 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1933 | poll_for_input, NULL); | |
284f4730 | 1934 | } |
8a9f5d3c GM |
1935 | |
1936 | /* Let the timer's callback function poll for input | |
1937 | if this becomes zero. */ | |
1938 | --poll_suppress_count; | |
284f4730 JB |
1939 | } |
1940 | #endif | |
1941 | } | |
1942 | ||
1d3195db RS |
1943 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1944 | ||
1945 | int | |
1946 | input_polling_used () | |
1947 | { | |
1948 | #ifdef POLL_FOR_INPUT | |
1949 | return read_socket_hook && !interrupt_input; | |
1950 | #else | |
1951 | return 0; | |
1952 | #endif | |
1953 | } | |
1954 | ||
284f4730 JB |
1955 | /* Turn off polling. */ |
1956 | ||
07a59269 | 1957 | void |
284f4730 JB |
1958 | stop_polling () |
1959 | { | |
1960 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1961 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1962 | ++poll_suppress_count; |
284f4730 JB |
1963 | #endif |
1964 | } | |
fe8aeef3 RS |
1965 | |
1966 | /* Set the value of poll_suppress_count to COUNT | |
1967 | and start or stop polling accordingly. */ | |
1968 | ||
1969 | void | |
1970 | set_poll_suppress_count (count) | |
1971 | int count; | |
1972 | { | |
1973 | #ifdef POLL_FOR_INPUT | |
1974 | if (count == 0 && poll_suppress_count != 0) | |
1975 | { | |
1976 | poll_suppress_count = 1; | |
1977 | start_polling (); | |
1978 | } | |
1979 | else if (count != 0 && poll_suppress_count == 0) | |
1980 | { | |
1981 | stop_polling (); | |
1982 | } | |
1983 | poll_suppress_count = count; | |
1984 | #endif | |
1985 | } | |
f4eef8b4 | 1986 | |
d0a57728 RS |
1987 | /* Bind polling_period to a value at least N. |
1988 | But don't decrease it. */ | |
1989 | ||
07a59269 | 1990 | void |
f4eef8b4 RS |
1991 | bind_polling_period (n) |
1992 | int n; | |
1993 | { | |
1994 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1995 | int new = polling_period; |
1996 | ||
1997 | if (n > new) | |
1998 | new = n; | |
1999 | ||
6fe007f7 | 2000 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2001 | stop_polling (); |
d0a57728 RS |
2002 | specbind (Qpolling_period, make_number (new)); |
2003 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2004 | start_polling (); |
2005 | #endif | |
2006 | } | |
284f4730 | 2007 | \f |
6da3dd3a RS |
2008 | /* Apply the control modifier to CHARACTER. */ |
2009 | ||
faf5e407 JB |
2010 | int |
2011 | make_ctrl_char (c) | |
2012 | int c; | |
2013 | { | |
d205953b JB |
2014 | /* Save the upper bits here. */ |
2015 | int upper = c & ~0177; | |
2016 | ||
2017 | c &= 0177; | |
2018 | ||
2019 | /* Everything in the columns containing the upper-case letters | |
2020 | denotes a control character. */ | |
2021 | if (c >= 0100 && c < 0140) | |
2022 | { | |
2023 | int oc = c; | |
2024 | c &= ~0140; | |
2025 | /* Set the shift modifier for a control char | |
2026 | made from a shifted letter. But only for letters! */ | |
2027 | if (oc >= 'A' && oc <= 'Z') | |
2028 | c |= shift_modifier; | |
2029 | } | |
2030 | ||
2031 | /* The lower-case letters denote control characters too. */ | |
2032 | else if (c >= 'a' && c <= 'z') | |
2033 | c &= ~0140; | |
2034 | ||
2035 | /* Include the bits for control and shift | |
2036 | only if the basic ASCII code can't indicate them. */ | |
2037 | else if (c >= ' ') | |
2038 | c |= ctrl_modifier; | |
2039 | ||
2040 | /* Replace the high bits. */ | |
2041 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2042 | |
2043 | return c; | |
2044 | } | |
2045 | ||
d4e68eea GM |
2046 | /* Display help echo in the echo area. |
2047 | ||
8dfd92c9 GM |
2048 | HELP a string means display that string, HELP nil means clear the |
2049 | help echo. If HELP is a function, call it with OBJECT and POS as | |
2050 | arguments; the function should return a help string or nil for | |
2051 | none. For all other types of HELP evaluate it to obtain a string. | |
2052 | ||
2190735a GM |
2053 | WINDOW is the window in which the help was generated, if any. |
2054 | It is nil if not in a window. | |
2055 | ||
5b2ec2d0 GM |
2056 | If OBJECT is a buffer, POS is the position in the buffer where the |
2057 | `help-echo' text property was found. | |
2058 | ||
2059 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2060 | and POS is the position in the overlay's buffer under the mouse. | |
2061 | ||
2062 | If OBJECT is a string (an overlay string or a string displayed with | |
2063 | the `display' property). POS is the position in that string under | |
2064 | the mouse. | |
d4e68eea | 2065 | |
27fd22dc | 2066 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2067 | echo overwrites a keystroke echo currently displayed in the echo |
2068 | area. | |
2069 | ||
8dfd92c9 GM |
2070 | Note: this function may only be called with HELP nil or a string |
2071 | from X code running asynchronously. */ | |
d4e68eea | 2072 | |
31f84d03 | 2073 | void |
2190735a GM |
2074 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2075 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2076 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2077 | { |
8dfd92c9 | 2078 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2079 | { |
8dfd92c9 GM |
2080 | if (FUNCTIONP (help)) |
2081 | { | |
2190735a | 2082 | Lisp_Object args[4]; |
8dfd92c9 | 2083 | args[0] = help; |
2190735a GM |
2084 | args[1] = window; |
2085 | args[2] = object; | |
2086 | args[3] = pos; | |
1db0076e | 2087 | help = safe_call (4, args); |
8dfd92c9 GM |
2088 | } |
2089 | else | |
1db0076e | 2090 | help = safe_eval (help); |
8dfd92c9 GM |
2091 | |
2092 | if (!STRINGP (help)) | |
d4e68eea | 2093 | return; |
31f84d03 SM |
2094 | } |
2095 | ||
8dfd92c9 | 2096 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2097 | { |
2098 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2099 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2100 | else if (/* Don't overwrite minibuffer contents. */ |
2101 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2102 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2103 | && (NILP (echo_message_buffer) |
2104 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2105 | /* Don't overwrite a prompt. */ |
2106 | && !cursor_in_echo_area) | |
2107 | { | |
8dfd92c9 | 2108 | if (STRINGP (help)) |
d4e68eea | 2109 | { |
331379bf | 2110 | int count = SPECPDL_INDEX (); |
f0c1cc56 GM |
2111 | |
2112 | if (!help_echo_showing_p) | |
2113 | Vpre_help_message = current_message (); | |
2114 | ||
d4e68eea | 2115 | specbind (Qmessage_truncate_lines, Qt); |
d5db4077 | 2116 | message3_nolog (help, SBYTES (help), |
8dfd92c9 | 2117 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2118 | unbind_to (count, Qnil); |
2119 | } | |
f0c1cc56 GM |
2120 | else if (STRINGP (Vpre_help_message)) |
2121 | { | |
2122 | message3_nolog (Vpre_help_message, | |
d5db4077 | 2123 | SBYTES (Vpre_help_message), |
f0c1cc56 GM |
2124 | STRING_MULTIBYTE (Vpre_help_message)); |
2125 | Vpre_help_message = Qnil; | |
2126 | } | |
d4e68eea | 2127 | else |
f0c1cc56 | 2128 | message (0); |
d4e68eea | 2129 | } |
5295a500 GM |
2130 | |
2131 | help_echo_showing_p = STRINGP (help); | |
d4e68eea | 2132 | } |
31f84d03 SM |
2133 | } |
2134 | ||
faf5e407 JB |
2135 | |
2136 | \f | |
284f4730 JB |
2137 | /* Input of single characters from keyboard */ |
2138 | ||
2139 | Lisp_Object print_help (); | |
2140 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2141 | static void record_char (); |
284f4730 | 2142 | |
c5fdd383 KH |
2143 | #ifdef MULTI_KBOARD |
2144 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2145 | #endif |
beecf6a1 | 2146 | |
284f4730 JB |
2147 | /* read a character from the keyboard; call the redisplay if needed */ |
2148 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2149 | -1 means do not do redisplay, but do do autosaving. | |
2150 | 1 means do both. */ | |
2151 | ||
7d6de002 RS |
2152 | /* The arguments MAPS and NMAPS are for menu prompting. |
2153 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2154 | ||
2155 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2156 | the first event of a key sequence (or not reading a key sequence). |
2157 | If PREV_EVENT is t, that is a "magic" value that says | |
2158 | not to run input methods, but in other respects to act as if | |
2159 | not reading a key sequence. | |
7d6de002 | 2160 | |
83d68044 | 2161 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2162 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2163 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2164 | |
2165 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2166 | |
284f4730 | 2167 | Lisp_Object |
7d6de002 | 2168 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2169 | int commandflag; |
7d6de002 RS |
2170 | int nmaps; |
2171 | Lisp_Object *maps; | |
2172 | Lisp_Object prev_event; | |
2173 | int *used_mouse_menu; | |
284f4730 | 2174 | { |
8c907a56 | 2175 | volatile Lisp_Object c; |
284f4730 | 2176 | int count; |
410d4de9 | 2177 | jmp_buf local_getcjmp; |
284f4730 | 2178 | jmp_buf save_jump; |
8c907a56 | 2179 | volatile int key_already_recorded = 0; |
017c7cb6 | 2180 | Lisp_Object tem, save; |
8c907a56 GM |
2181 | volatile Lisp_Object previous_echo_area_message; |
2182 | volatile Lisp_Object also_record; | |
2183 | volatile int reread; | |
d5eecefb | 2184 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2185 | EMACS_TIME last_idle_start; |
7c3bc944 | 2186 | |
e4fe371d | 2187 | also_record = Qnil; |
284f4730 | 2188 | |
71918b75 RS |
2189 | before_command_key_count = this_command_key_count; |
2190 | before_command_echo_length = echo_length (); | |
ef6661f7 | 2191 | c = Qnil; |
7ee32cda | 2192 | previous_echo_area_message = Qnil; |
71918b75 | 2193 | |
7ee32cda | 2194 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2195 | |
7f07d5ca RS |
2196 | retry: |
2197 | ||
7d18f9ae RS |
2198 | reread = 0; |
2199 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2200 | { |
7539e11f | 2201 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2202 | Vunread_post_input_method_events |
7539e11f | 2203 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2204 | |
2479e91e RS |
2205 | /* Undo what read_char_x_menu_prompt did when it unread |
2206 | additional keys returned by Fx_popup_menu. */ | |
2207 | if (CONSP (c) | |
7539e11f KR |
2208 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2209 | && NILP (XCDR (c))) | |
2210 | c = XCAR (c); | |
2479e91e | 2211 | |
7d18f9ae RS |
2212 | reread = 1; |
2213 | goto reread_first; | |
284f4730 JB |
2214 | } |
2215 | ||
86e5706b RS |
2216 | if (unread_command_char != -1) |
2217 | { | |
18cd2eeb | 2218 | XSETINT (c, unread_command_char); |
86e5706b RS |
2219 | unread_command_char = -1; |
2220 | ||
7d18f9ae RS |
2221 | reread = 1; |
2222 | goto reread_first; | |
2223 | } | |
2224 | ||
2225 | if (CONSP (Vunread_command_events)) | |
2226 | { | |
7539e11f KR |
2227 | c = XCAR (Vunread_command_events); |
2228 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2229 | |
2230 | /* Undo what read_char_x_menu_prompt did when it unread | |
2231 | additional keys returned by Fx_popup_menu. */ | |
2232 | if (CONSP (c) | |
f4e05d97 GM |
2233 | && EQ (XCDR (c), Qdisabled) |
2234 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2235 | c = XCAR (c); |
f4e05d97 | 2236 | |
d17e49a8 GM |
2237 | /* If the queued event is something that used the mouse, |
2238 | set used_mouse_menu accordingly. */ | |
2239 | if (used_mouse_menu | |
2240 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2241 | *used_mouse_menu = 1; | |
2242 | ||
7d18f9ae RS |
2243 | reread = 1; |
2244 | goto reread_for_input_method; | |
2245 | } | |
2246 | ||
2247 | if (CONSP (Vunread_input_method_events)) | |
2248 | { | |
7539e11f KR |
2249 | c = XCAR (Vunread_input_method_events); |
2250 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2251 | |
2252 | /* Undo what read_char_x_menu_prompt did when it unread | |
2253 | additional keys returned by Fx_popup_menu. */ | |
2254 | if (CONSP (c) | |
7539e11f KR |
2255 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2256 | && NILP (XCDR (c))) | |
2257 | c = XCAR (c); | |
7d18f9ae RS |
2258 | reread = 1; |
2259 | goto reread_for_input_method; | |
86e5706b RS |
2260 | } |
2261 | ||
71918b75 RS |
2262 | /* If there is no function key translated before |
2263 | reset-this-command-lengths takes effect, forget about it. */ | |
2264 | before_command_restore_flag = 0; | |
2265 | ||
284f4730 JB |
2266 | if (!NILP (Vexecuting_macro)) |
2267 | { | |
fce33686 JB |
2268 | /* We set this to Qmacro; since that's not a frame, nobody will |
2269 | try to switch frames on us, and the selected window will | |
2270 | remain unchanged. | |
2271 | ||
2272 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2273 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2274 | real event came from. Normally, a switch-frame event selects |
2275 | internal_last_event_frame after each command is read, but | |
2276 | events read from a macro should never cause a new frame to be | |
2277 | selected. */ | |
4c52b668 | 2278 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2279 | |
663258f2 JB |
2280 | /* Exit the macro if we are at the end. |
2281 | Also, some things replace the macro with t | |
2282 | to force an early exit. */ | |
2283 | if (EQ (Vexecuting_macro, Qt) | |
2284 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2285 | { |
18cd2eeb | 2286 | XSETINT (c, -1); |
7c3bc944 | 2287 | RETURN_UNGCPRO (c); |
284f4730 | 2288 | } |
df0f2ba1 | 2289 | |
284f4730 | 2290 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2291 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2292 | && (XINT (c) & 0x80)) |
bb9e9bed | 2293 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2294 | |
284f4730 JB |
2295 | executing_macro_index++; |
2296 | ||
2297 | goto from_macro; | |
2298 | } | |
2299 | ||
cd21b839 JB |
2300 | if (!NILP (unread_switch_frame)) |
2301 | { | |
2302 | c = unread_switch_frame; | |
2303 | unread_switch_frame = Qnil; | |
2304 | ||
2305 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2306 | again, so we do not set `reread'. */ |
f4255cd1 | 2307 | goto reread_first; |
cd21b839 JB |
2308 | } |
2309 | ||
adc1d5c8 | 2310 | /* if redisplay was requested */ |
6e4e64a8 RS |
2311 | if (commandflag >= 0) |
2312 | { | |
adc1d5c8 RS |
2313 | /* If there is pending input, process any events which are not |
2314 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2315 | if (input_pending |
2316 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2317 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2318 | |
adc1d5c8 RS |
2319 | /* Redisplay if no pending input. */ |
2320 | while (!input_pending) | |
2321 | { | |
5295a500 | 2322 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2323 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2324 | else |
2325 | redisplay (); | |
adc1d5c8 RS |
2326 | |
2327 | if (!input_pending) | |
2328 | /* Normal case: no input arrived during redisplay. */ | |
2329 | break; | |
2330 | ||
2331 | /* Input arrived and pre-empted redisplay. | |
2332 | Process any events which are not user-visible. */ | |
2333 | swallow_events (0); | |
2334 | /* If that cleared input_pending, try again to redisplay. */ | |
2335 | } | |
6e4e64a8 | 2336 | } |
e9bf89a0 | 2337 | |
59a84f8e GM |
2338 | /* Message turns off echoing unless more keystrokes turn it on again. |
2339 | ||
2340 | The code in 20.x for the condition was | |
2341 | ||
2342 | 1. echo_area_glyphs && *echo_area_glyphs | |
2343 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2344 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2345 | ||
2346 | (1) means there's a current message displayed | |
2347 | ||
2348 | (2) means it's not the message from echoing from the current | |
2349 | kboard. | |
2350 | ||
2351 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause | |
2352 | is set to a non-null value. This is done in read_char and it is | |
2353 | set to echo_area_glyphs after a call to echo_char. That means | |
2354 | ok_to_echo_at_next_pause is either null or | |
2355 | current_kboard->echobuf with the appropriate current_kboard at | |
2356 | that time. | |
2357 | ||
2358 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2359 | must be either null, or the current message isn't from echoing at | |
2360 | all, or it's from echoing from a different kboard than the | |
2361 | current one. */ | |
2362 | ||
27fd22dc | 2363 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2364 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2365 | && (/* And it's either not from echoing. */ |
2366 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2367 | /* Or it's an echo from a different kboard. */ | |
2368 | || echo_kboard != current_kboard | |
2369 | /* Or we explicitly allow overwriting whatever there is. */ | |
2370 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2371 | cancel_echoing (); |
410d4de9 | 2372 | else |
410d4de9 | 2373 | echo_dash (); |
59a84f8e | 2374 | |
410d4de9 RS |
2375 | /* Try reading a character via menu prompting in the minibuf. |
2376 | Try this before the sit-for, because the sit-for | |
2377 | would do the wrong thing if we are supposed to do | |
2378 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2379 | after a mouse event so don't try a minibuf menu. */ | |
2380 | c = Qnil; | |
2381 | if (nmaps > 0 && INTERACTIVE | |
2382 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2383 | /* Don't bring up a menu if we already have another event. */ | |
2384 | && NILP (Vunread_command_events) | |
2385 | && unread_command_char < 0 | |
4ec4ed6a | 2386 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2387 | { |
2388 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2389 | if (! NILP (c)) | |
2390 | { | |
2391 | key_already_recorded = 1; | |
2392 | goto non_reread_1; | |
2393 | } | |
2394 | } | |
284f4730 | 2395 | |
410d4de9 RS |
2396 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2397 | We will do that below, temporarily for short sections of code, | |
2398 | when appropriate. local_getcjmp must be in effect | |
2399 | around any call to sit_for or kbd_buffer_get_event; | |
2400 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2401 | |
410d4de9 | 2402 | if (_setjmp (local_getcjmp)) |
284f4730 | 2403 | { |
18cd2eeb | 2404 | XSETINT (c, quit_char); |
788f89eb | 2405 | internal_last_event_frame = selected_frame; |
4c52b668 | 2406 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2407 | /* If we report the quit char as an event, |
2408 | don't do so more than once. */ | |
2409 | if (!NILP (Vinhibit_quit)) | |
2410 | Vquit_flag = Qnil; | |
284f4730 | 2411 | |
c5fdd383 | 2412 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2413 | { |
788f89eb | 2414 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2415 | if (kb != current_kboard) |
df0f2ba1 | 2416 | { |
f3fbd155 | 2417 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2418 | /* We shouldn't get here if we were in single-kboard mode! */ |
2419 | if (single_kboard) | |
df0f2ba1 | 2420 | abort (); |
f3fbd155 KR |
2421 | if (CONSP (link)) |
2422 | { | |
2423 | while (CONSP (XCDR (link))) | |
2424 | link = XCDR (link); | |
2425 | if (!NILP (XCDR (link))) | |
2426 | abort (); | |
2427 | } | |
2428 | if (!CONSP (link)) | |
2429 | kb->kbd_queue = Fcons (c, Qnil); | |
2430 | else | |
2431 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2432 | kb->kbd_queue_has_data = 1; |
2433 | current_kboard = kb; | |
ef6661f7 RS |
2434 | /* This is going to exit from read_char |
2435 | so we had better get rid of this frame's stuff. */ | |
2436 | UNGCPRO; | |
c5fdd383 | 2437 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2438 | } |
2439 | } | |
2440 | #endif | |
284f4730 JB |
2441 | goto non_reread; |
2442 | } | |
2443 | ||
d9d4c147 KH |
2444 | timer_start_idle (); |
2445 | ||
284f4730 JB |
2446 | /* If in middle of key sequence and minibuffer not active, |
2447 | start echoing if enough time elapses. */ | |
410d4de9 | 2448 | |
7ee32cda GM |
2449 | if (minibuf_level == 0 |
2450 | && !current_kboard->immediate_echo | |
6c6083a9 | 2451 | && this_command_key_count > 0 |
27203ead | 2452 | && ! noninteractive |
f2647d04 DL |
2453 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2454 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2455 | && (/* No message. */ |
2456 | NILP (echo_area_buffer[0]) | |
2457 | /* Or empty message. */ | |
2458 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2459 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2460 | /* Or already echoing from same kboard. */ | |
2461 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2462 | /* Or not echoing before and echoing allowed. */ | |
2463 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2464 | { |
2465 | Lisp_Object tem0; | |
985f9f66 | 2466 | |
7d6de002 RS |
2467 | /* After a mouse event, start echoing right away. |
2468 | This is because we are probably about to display a menu, | |
2469 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2470 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2471 | echo_now (); |
7d6de002 RS |
2472 | else |
2473 | { | |
39aab679 DL |
2474 | int sec, usec; |
2475 | double duration = extract_float (Vecho_keystrokes); | |
2476 | sec = (int) duration; | |
15fa88ab | 2477 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2478 | save_getcjmp (save_jump); |
2479 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2480 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2481 | restore_getcjmp (save_jump); |
303b5b3f RS |
2482 | if (EQ (tem0, Qt) |
2483 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2484 | echo_now (); |
7d6de002 | 2485 | } |
284f4730 JB |
2486 | } |
2487 | ||
410d4de9 | 2488 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2489 | |
2490 | if (commandflag != 0 | |
2491 | && auto_save_interval > 0 | |
c43b1734 | 2492 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2493 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2494 | { |
284f4730 | 2495 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2496 | /* Hooks can actually change some buffers in auto save. */ |
2497 | redisplay (); | |
284f4730 JB |
2498 | } |
2499 | ||
8150596a | 2500 | /* Try reading using an X menu. |
24597608 RS |
2501 | This is never confused with reading using the minibuf |
2502 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2503 | does not pass on any keymaps. */ | |
410d4de9 | 2504 | |
24597608 | 2505 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2506 | && !NILP (prev_event) |
2507 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2508 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2509 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2510 | /* Don't bring up a menu if we already have another event. */ |
2511 | && NILP (Vunread_command_events) | |
b8556aee | 2512 | && unread_command_char < 0) |
8eb4d8ef RS |
2513 | { |
2514 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2515 | ||
2516 | /* Now that we have read an event, Emacs is not idle. */ | |
2517 | timer_stop_idle (); | |
2518 | ||
7c3bc944 | 2519 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2520 | } |
7d6de002 | 2521 | |
410d4de9 RS |
2522 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2523 | ||
26c1639e | 2524 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2525 | { |
2526 | int delay_level, buffer_size; | |
2527 | ||
410d4de9 RS |
2528 | /* Slow down auto saves logarithmically in size of current buffer, |
2529 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2530 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2531 | last_non_minibuf_size = Z - BEG; | |
2532 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2533 | delay_level = 0; | |
2534 | while (buffer_size > 64) | |
2535 | delay_level++, buffer_size -= buffer_size >> 2; | |
2536 | if (delay_level < 4) delay_level = 4; | |
2537 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2538 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2539 | ||
2540 | /* Auto save if enough time goes by without input. */ | |
2541 | if (commandflag != 0 | |
c43b1734 | 2542 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2543 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2544 | && XINT (Vauto_save_timeout) > 0) |
2545 | { | |
2546 | Lisp_Object tem0; | |
410d4de9 RS |
2547 | |
2548 | save_getcjmp (save_jump); | |
2549 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2550 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2551 | 0, 1, 1, 0); |
410d4de9 RS |
2552 | restore_getcjmp (save_jump); |
2553 | ||
303b5b3f RS |
2554 | if (EQ (tem0, Qt) |
2555 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2556 | { |
7d6de002 | 2557 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2558 | |
2559 | /* If we have auto-saved and there is still no input | |
2560 | available, garbage collect if there has been enough | |
2561 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2562 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2563 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2564 | Fgarbage_collect (); |
410d4de9 | 2565 | |
ef8fd672 | 2566 | redisplay (); |
7d6de002 RS |
2567 | } |
2568 | } | |
2569 | } | |
284f4730 | 2570 | |
303b5b3f RS |
2571 | /* If this has become non-nil here, it has been set by a timer |
2572 | or sentinel or filter. */ | |
2573 | if (CONSP (Vunread_command_events)) | |
2574 | { | |
7539e11f KR |
2575 | c = XCAR (Vunread_command_events); |
2576 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2577 | } |
2578 | ||
410d4de9 RS |
2579 | /* Read something from current KBOARD's side queue, if possible. */ |
2580 | ||
beecf6a1 | 2581 | if (NILP (c)) |
1e12dd87 | 2582 | { |
c5fdd383 | 2583 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2584 | { |
c5fdd383 | 2585 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2586 | abort (); |
7539e11f | 2587 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2588 | current_kboard->kbd_queue |
7539e11f | 2589 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2590 | if (NILP (current_kboard->kbd_queue)) |
2591 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2592 | input_pending = readable_events (0); |
4c52b668 KH |
2593 | if (EVENT_HAS_PARAMETERS (c) |
2594 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2595 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2596 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2597 | } |
1e8bd3da RS |
2598 | } |
2599 | ||
c5fdd383 | 2600 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2601 | /* If current_kboard's side queue is empty check the other kboards. |
2602 | If one of them has data that we have not yet seen here, | |
2603 | switch to it and process the data waiting for it. | |
2604 | ||
2605 | Note: if the events queued up for another kboard | |
2606 | have already been seen here, and therefore are not a complete command, | |
2607 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2608 | That's to avoid an infinite loop switching between kboards here. */ | |
2609 | if (NILP (c) && !single_kboard) | |
2610 | { | |
2611 | KBOARD *kb; | |
2612 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2613 | if (kb->kbd_queue_has_data) | |
2614 | { | |
2615 | current_kboard = kb; | |
ef6661f7 RS |
2616 | /* This is going to exit from read_char |
2617 | so we had better get rid of this frame's stuff. */ | |
2618 | UNGCPRO; | |
1e8bd3da RS |
2619 | longjmp (wrong_kboard_jmpbuf, 1); |
2620 | } | |
2621 | } | |
df0f2ba1 KH |
2622 | #endif |
2623 | ||
410d4de9 RS |
2624 | wrong_kboard: |
2625 | ||
2626 | stop_polling (); | |
2627 | ||
1e8bd3da RS |
2628 | /* Finally, we read from the main queue, |
2629 | and if that gives us something we can't use yet, we put it on the | |
2630 | appropriate side queue and try again. */ | |
410d4de9 | 2631 | |
1e8bd3da RS |
2632 | if (NILP (c)) |
2633 | { | |
2634 | KBOARD *kb; | |
2635 | ||
1e8bd3da | 2636 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2637 | save_getcjmp (save_jump); |
2638 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2639 | timer_start_idle (); |
83d68044 | 2640 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2641 | restore_getcjmp (save_jump); |
2642 | ||
c5fdd383 | 2643 | #ifdef MULTI_KBOARD |
410d4de9 | 2644 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2645 | { |
f3fbd155 KR |
2646 | Lisp_Object link = kb->kbd_queue; |
2647 | if (CONSP (link)) | |
2648 | { | |
2649 | while (CONSP (XCDR (link))) | |
2650 | link = XCDR (link); | |
2651 | if (!NILP (XCDR (link))) | |
2652 | abort (); | |
2653 | } | |
2654 | if (!CONSP (link)) | |
2655 | kb->kbd_queue = Fcons (c, Qnil); | |
2656 | else | |
2657 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2658 | kb->kbd_queue_has_data = 1; |
46b84797 | 2659 | c = Qnil; |
1e8bd3da RS |
2660 | if (single_kboard) |
2661 | goto wrong_kboard; | |
2662 | current_kboard = kb; | |
ef6661f7 RS |
2663 | /* This is going to exit from read_char |
2664 | so we had better get rid of this frame's stuff. */ | |
2665 | UNGCPRO; | |
1e8bd3da | 2666 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2667 | } |
1e8bd3da | 2668 | #endif |
beecf6a1 | 2669 | } |
1e8bd3da | 2670 | |
284f4730 | 2671 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2672 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2673 | Fkill_emacs (make_number (1)); |
2674 | ||
8c18cbfb | 2675 | if (INTEGERP (c)) |
80645119 JB |
2676 | { |
2677 | /* Add in any extra modifiers, where appropriate. */ | |
2678 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2679 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2680 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2681 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2682 | |
2683 | /* Transfer any other modifier bits directly from | |
2684 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2685 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2686 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2687 | } |
9fa4395d | 2688 | |
284f4730 JB |
2689 | non_reread: |
2690 | ||
fdbb67fe GM |
2691 | /* Record the last idle start time so that we can reset it |
2692 | should the next event read be a help-echo. */ | |
2693 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2694 | timer_stop_idle (); |
284f4730 JB |
2695 | start_polling (); |
2696 | ||
410d4de9 RS |
2697 | if (NILP (c)) |
2698 | { | |
2699 | if (commandflag >= 0 | |
4ec4ed6a | 2700 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2701 | redisplay (); |
2702 | ||
2703 | goto wrong_kboard; | |
2704 | } | |
2705 | ||
2706 | non_reread_1: | |
2707 | ||
dfd11da7 | 2708 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2709 | so don't show them to the user. |
2710 | Also, don't record a key if we already did. */ | |
2711 | if (BUFFERP (c) || key_already_recorded) | |
2712 | RETURN_UNGCPRO (c); | |
a1341f75 | 2713 | |
7f07d5ca RS |
2714 | /* Process special events within read_char |
2715 | and loop around to read another event. */ | |
017c7cb6 RS |
2716 | save = Vquit_flag; |
2717 | Vquit_flag = Qnil; | |
02067692 | 2718 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2719 | Vquit_flag = save; |
7f07d5ca RS |
2720 | |
2721 | if (!NILP (tem)) | |
2722 | { | |
ba8dfba8 RS |
2723 | int was_locked = single_kboard; |
2724 | ||
7f07d5ca | 2725 | last_input_char = c; |
158f7532 | 2726 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2727 | |
5d12f14d EZ |
2728 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2729 | /* We stopped being idle for this event; undo that. This | |
2730 | prevents automatic window selection (under | |
0b9a1d3d | 2731 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d EZ |
2732 | example banishing the mouse under mouse-avoidance-mode. */ |
2733 | timer_idleness_start_time = last_idle_start; | |
2734 | ||
ba8dfba8 RS |
2735 | /* Resume allowing input from any kboard, if that was true before. */ |
2736 | if (!was_locked) | |
2737 | any_kboard_state (); | |
2738 | ||
7f07d5ca RS |
2739 | goto retry; |
2740 | } | |
2741 | ||
284f4730 | 2742 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2743 | if (INTEGERP (c)) |
284f4730 JB |
2744 | { |
2745 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2746 | if (XINT (c) == -1) |
7c3bc944 | 2747 | RETURN_UNGCPRO (c); |
284f4730 | 2748 | |
301738ed | 2749 | if ((STRINGP (Vkeyboard_translate_table) |
d5db4077 | 2750 | && SCHARS (Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) |
301738ed RS |
2751 | || (VECTORP (Vkeyboard_translate_table) |
2752 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2753 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2754 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2755 | { |
2756 | Lisp_Object d; | |
2757 | d = Faref (Vkeyboard_translate_table, c); | |
2758 | /* nil in keyboard-translate-table means no translation. */ | |
2759 | if (!NILP (d)) | |
2760 | c = d; | |
2761 | } | |
284f4730 JB |
2762 | } |
2763 | ||
e4fe371d RS |
2764 | /* If this event is a mouse click in the menu bar, |
2765 | return just menu-bar for now. Modify the mouse click event | |
2766 | so we won't do this twice, then queue it up. */ | |
2767 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2768 | && CONSP (XCDR (c)) |
e4fe371d | 2769 | && CONSP (EVENT_START (c)) |
7539e11f | 2770 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2771 | { |
e4fe371d | 2772 | Lisp_Object posn; |
284f4730 | 2773 | |
e4fe371d RS |
2774 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2775 | /* Handle menu-bar events: | |
2776 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2777 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2778 | { |
2779 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
f3fbd155 | 2780 | POSN_BUFFER_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2781 | |
e4fe371d RS |
2782 | also_record = c; |
2783 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2784 | c = posn; | |
284f4730 | 2785 | } |
284f4730 JB |
2786 | } |
2787 | ||
7d18f9ae RS |
2788 | /* Store these characters into recent_keys, the dribble file if any, |
2789 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2790 | record_char (c); |
2791 | if (! NILP (also_record)) | |
2792 | record_char (also_record); | |
51172b6d | 2793 | |
d5eecefb RS |
2794 | /* Wipe the echo area. |
2795 | But first, if we are about to use an input method, | |
2796 | save the echo area contents for it to refer to. */ | |
2797 | if (INTEGERP (c) | |
2798 | && ! NILP (Vinput_method_function) | |
2799 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2800 | && (unsigned) XINT (c) != 127 |
2801 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2802 | { |
2803 | previous_echo_area_message = Fcurrent_message (); | |
2804 | Vinput_method_previous_message = previous_echo_area_message; | |
2805 | } | |
d5eecefb | 2806 | |
1172eb8d GM |
2807 | /* Now wipe the echo area, except for help events which do their |
2808 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2809 | if (!CONSP (c) |
2810 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2811 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2812 | { |
2813 | if (!NILP (echo_area_buffer[0])) | |
2814 | safe_run_hooks (Qecho_area_clear_hook); | |
2815 | clear_message (1, 0); | |
2816 | } | |
d5eecefb | 2817 | |
7d18f9ae | 2818 | reread_for_input_method: |
284f4730 | 2819 | from_macro: |
7d18f9ae | 2820 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2821 | if (INTEGERP (c) |
2822 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2823 | /* Don't run the input method within a key sequence, |
2824 | after the first event of the key sequence. */ | |
2825 | && NILP (prev_event) | |
d5eecefb | 2826 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2827 | && (unsigned) XINT (c) != 127 |
2828 | && (unsigned) XINT (c) < 256) | |
d5eecefb RS |
2829 | { |
2830 | Lisp_Object keys; | |
6e5742a0 | 2831 | int key_count; |
d5eecefb | 2832 | struct gcpro gcpro1; |
aed13378 | 2833 | int count = SPECPDL_INDEX (); |
d5eecefb | 2834 | |
6e5742a0 RS |
2835 | /* Save the echo status. */ |
2836 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2837 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2838 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2839 | ||
2840 | if (before_command_restore_flag) | |
2841 | { | |
2842 | this_command_key_count = before_command_key_count_1; | |
2843 | if (this_command_key_count < this_single_command_key_start) | |
2844 | this_single_command_key_start = this_command_key_count; | |
2845 | echo_truncate (before_command_echo_length_1); | |
2846 | before_command_restore_flag = 0; | |
2847 | } | |
2848 | ||
2849 | /* Save the this_command_keys status. */ | |
2850 | key_count = this_command_key_count; | |
2851 | ||
2852 | if (key_count > 0) | |
2853 | keys = Fcopy_sequence (this_command_keys); | |
2854 | else | |
2855 | keys = Qnil; | |
d5eecefb | 2856 | GCPRO1 (keys); |
6e5742a0 RS |
2857 | |
2858 | /* Clear out this_command_keys. */ | |
2859 | this_command_key_count = 0; | |
2860 | ||
2861 | /* Now wipe the echo area. */ | |
985f9f66 | 2862 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2863 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2864 | clear_message (1, 0); |
6e5742a0 RS |
2865 | echo_truncate (0); |
2866 | ||
b638f328 RS |
2867 | /* If we are not reading a key sequence, |
2868 | never use the echo area. */ | |
2869 | if (maps == 0) | |
2870 | { | |
b638f328 RS |
2871 | specbind (Qinput_method_use_echo_area, Qt); |
2872 | } | |
2873 | ||
6e5742a0 | 2874 | /* Call the input method. */ |
d5eecefb | 2875 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2876 | |
2877 | tem = unbind_to (count, tem); | |
2878 | ||
6e5742a0 RS |
2879 | /* Restore the saved echoing state |
2880 | and this_command_keys state. */ | |
2881 | this_command_key_count = key_count; | |
2882 | if (key_count > 0) | |
2883 | this_command_keys = keys; | |
2884 | ||
2885 | cancel_echoing (); | |
2886 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2887 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2888 | if (saved_immediate_echo) | |
2889 | echo_now (); | |
2890 | ||
d5eecefb | 2891 | UNGCPRO; |
6e5742a0 | 2892 | |
d5eecefb RS |
2893 | /* The input method can return no events. */ |
2894 | if (! CONSP (tem)) | |
7d18f9ae | 2895 | { |
d5eecefb | 2896 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2897 | if (! NILP (previous_echo_area_message)) |
2898 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2899 | goto retry; |
7d18f9ae | 2900 | } |
d5eecefb | 2901 | /* It returned one event or more. */ |
7539e11f | 2902 | c = XCAR (tem); |
d5eecefb | 2903 | Vunread_post_input_method_events |
7539e11f | 2904 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2905 | } |
7c3bc944 | 2906 | |
7d18f9ae | 2907 | reread_first: |
284f4730 | 2908 | |
7ee32cda | 2909 | /* Display help if not echoing. */ |
1172eb8d | 2910 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 2911 | { |
2190735a | 2912 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
2913 | Lisp_Object help, object, position, window, tem; |
2914 | ||
2915 | tem = Fcdr (XCDR (c)); | |
2916 | help = Fcar (tem); | |
2917 | tem = Fcdr (tem); | |
2918 | window = Fcar (tem); | |
2919 | tem = Fcdr (tem); | |
2920 | object = Fcar (tem); | |
2921 | tem = Fcdr (tem); | |
2922 | position = Fcar (tem); | |
2923 | ||
2190735a | 2924 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
2925 | |
2926 | /* We stopped being idle for this event; undo that. */ | |
2927 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
2928 | goto retry; |
2929 | } | |
2930 | ||
7d18f9ae | 2931 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2932 | { |
7d18f9ae RS |
2933 | before_command_key_count = this_command_key_count; |
2934 | before_command_echo_length = echo_length (); | |
2935 | ||
2936 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2937 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2938 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2939 | && ! (EVENT_HAS_PARAMETERS (c) |
2940 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2941 | { | |
2942 | echo_char (c); | |
2943 | if (! NILP (also_record)) | |
2944 | echo_char (also_record); | |
2945 | /* Once we reread a character, echoing can happen | |
2946 | the next time we pause to read a new one. */ | |
985f9f66 | 2947 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2948 | } |
2949 | ||
2950 | /* Record this character as part of the current key. */ | |
2951 | add_command_key (c); | |
e4fe371d | 2952 | if (! NILP (also_record)) |
7d18f9ae | 2953 | add_command_key (also_record); |
e4fe371d | 2954 | } |
b8556aee | 2955 | |
284f4730 | 2956 | last_input_char = c; |
c43b1734 | 2957 | num_input_events++; |
284f4730 JB |
2958 | |
2959 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2960 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2961 | { |
2962 | Lisp_Object tem0; | |
aed13378 | 2963 | count = SPECPDL_INDEX (); |
284f4730 JB |
2964 | |
2965 | record_unwind_protect (Fset_window_configuration, | |
2966 | Fcurrent_window_configuration (Qnil)); | |
2967 | ||
2968 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2969 | if (STRINGP (tem0)) |
284f4730 JB |
2970 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2971 | ||
2972 | cancel_echoing (); | |
3cb81011 KH |
2973 | do |
2974 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2975 | while (BUFFERP (c)); |
ff11dfa1 | 2976 | /* Remove the help from the frame */ |
284f4730 | 2977 | unbind_to (count, Qnil); |
410d4de9 | 2978 | |
284f4730 JB |
2979 | redisplay (); |
2980 | if (EQ (c, make_number (040))) | |
2981 | { | |
2982 | cancel_echoing (); | |
3cb81011 KH |
2983 | do |
2984 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2985 | while (BUFFERP (c)); |
284f4730 JB |
2986 | } |
2987 | } | |
2988 | ||
7c3bc944 | 2989 | RETURN_UNGCPRO (c); |
284f4730 JB |
2990 | } |
2991 | ||
8eb4d8ef RS |
2992 | /* Record a key that came from a mouse menu. |
2993 | Record it for echoing, for this-command-keys, and so on. */ | |
2994 | ||
2995 | static void | |
2996 | record_menu_key (c) | |
2997 | Lisp_Object c; | |
2998 | { | |
2999 | /* Wipe the echo area. */ | |
985f9f66 | 3000 | clear_message (1, 0); |
8eb4d8ef RS |
3001 | |
3002 | record_char (c); | |
3003 | ||
3004 | before_command_key_count = this_command_key_count; | |
3005 | before_command_echo_length = echo_length (); | |
3006 | ||
3007 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3008 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3009 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3010 | { |
3011 | echo_char (c); | |
3012 | ||
3013 | /* Once we reread a character, echoing can happen | |
3014 | the next time we pause to read a new one. */ | |
3015 | ok_to_echo_at_next_pause = 0; | |
3016 | } | |
3017 | ||
3018 | /* Record this character as part of the current key. */ | |
3019 | add_command_key (c); | |
3020 | ||
3021 | /* Re-reading in the middle of a command */ | |
3022 | last_input_char = c; | |
c43b1734 | 3023 | num_input_events++; |
8eb4d8ef RS |
3024 | } |
3025 | ||
ecb7cb34 KH |
3026 | /* Return 1 if should recognize C as "the help character". */ |
3027 | ||
3028 | int | |
3029 | help_char_p (c) | |
3030 | Lisp_Object c; | |
3031 | { | |
3032 | Lisp_Object tail; | |
3033 | ||
3034 | if (EQ (c, Vhelp_char)) | |
3035 | return 1; | |
7539e11f KR |
3036 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3037 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3038 | return 1; |
3039 | return 0; | |
3040 | } | |
3041 | ||
e4fe371d RS |
3042 | /* Record the input event C in various ways. */ |
3043 | ||
3044 | static void | |
3045 | record_char (c) | |
3046 | Lisp_Object c; | |
3047 | { | |
090c68b9 | 3048 | int recorded = 0; |
52be17cc | 3049 | |
090c68b9 KS |
3050 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3051 | { | |
3052 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3053 | events, we filter out repeated help-echo events, only store the | |
3054 | first and last in a series of mouse-movement events, and don't | |
3055 | store repeated help-echo events which are only separated by | |
3056 | mouse-movement events. */ | |
3057 | ||
3058 | Lisp_Object ev1, ev2, ev3; | |
3059 | int ix1, ix2, ix3; | |
3060 | ||
3061 | if ((ix1 = recent_keys_index - 1) < 0) | |
3062 | ix1 = NUM_RECENT_KEYS - 1; | |
3063 | ev1 = AREF (recent_keys, ix1); | |
3064 | ||
3065 | if ((ix2 = ix1 - 1) < 0) | |
3066 | ix2 = NUM_RECENT_KEYS - 1; | |
3067 | ev2 = AREF (recent_keys, ix2); | |
3068 | ||
3069 | if ((ix3 = ix2 - 1) < 0) | |
3070 | ix3 = NUM_RECENT_KEYS - 1; | |
3071 | ev3 = AREF (recent_keys, ix3); | |
3072 | ||
3073 | if (EQ (XCAR (c), Qhelp_echo)) | |
3074 | { | |
3075 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3076 | message, and a different help than the previously recorded |
090c68b9 KS |
3077 | event. */ |
3078 | Lisp_Object help, last_help; | |
3079 | ||
3080 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3081 | if (!STRINGP (help)) | |
3082 | recorded = 1; | |
3083 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3084 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3085 | recorded = 1; | |
3086 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3087 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3088 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3089 | recorded = -1; | |
3090 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3091 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3092 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3093 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3094 | recorded = -2; | |
3095 | } | |
3096 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3097 | { |
090c68b9 KS |
3098 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3099 | So additional mouse movement events replace the last element. */ | |
3100 | Lisp_Object last_window, window; | |
3101 | ||
3102 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3103 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3104 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3105 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3106 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3107 | { |
090c68b9 KS |
3108 | ASET (recent_keys, ix1, c); |
3109 | recorded = 1; | |
52be17cc GM |
3110 | } |
3111 | } | |
3112 | } | |
3113 | else | |
090c68b9 KS |
3114 | store_kbd_macro_char (c); |
3115 | ||
3116 | if (!recorded) | |
e8a50785 GM |
3117 | { |
3118 | total_keys++; | |
3119 | ASET (recent_keys, recent_keys_index, c); | |
3120 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3121 | recent_keys_index = 0; | |
3122 | } | |
090c68b9 KS |
3123 | else if (recorded < 0) |
3124 | { | |
3125 | /* We need to remove one or two events from recent_keys. | |
3126 | To do this, we simply put nil at those events and move the | |
3127 | recent_keys_index backwards over those events. Usually, | |
3128 | users will never see those nil events, as they will be | |
3129 | overwritten by the command keys entered to see recent_keys | |
3130 | (e.g. C-h l). */ | |
3131 | ||
3132 | while (recorded++ < 0 && total_keys > 0) | |
3133 | { | |
3134 | if (total_keys < NUM_RECENT_KEYS) | |
3135 | total_keys--; | |
3136 | if (--recent_keys_index < 0) | |
3137 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3138 | ASET (recent_keys, recent_keys_index, Qnil); | |
3139 | } | |
3140 | } | |
3141 | ||
3142 | num_nonmacro_input_events++; | |
52be17cc | 3143 | |
e4fe371d RS |
3144 | /* Write c to the dribble file. If c is a lispy event, write |
3145 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3146 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3147 | if (dribble) | |
3148 | { | |
3149 | if (INTEGERP (c)) | |
3150 | { | |
3151 | if (XUINT (c) < 0x100) | |
3152 | putc (XINT (c), dribble); | |
3153 | else | |
6de34814 | 3154 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3155 | } |
3156 | else | |
3157 | { | |
3158 | Lisp_Object dribblee; | |
3159 | ||
3160 | /* If it's a structured event, take the event header. */ | |
3161 | dribblee = EVENT_HEAD (c); | |
3162 | ||
3163 | if (SYMBOLP (dribblee)) | |
3164 | { | |
3165 | putc ('<', dribble); | |
d5db4077 KR |
3166 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3167 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3168 | dribble); |
3169 | putc ('>', dribble); | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | fflush (dribble); | |
3174 | } | |
e4fe371d RS |
3175 | } |
3176 | ||
284f4730 JB |
3177 | Lisp_Object |
3178 | print_help (object) | |
3179 | Lisp_Object object; | |
3180 | { | |
622de3e9 | 3181 | struct buffer *old = current_buffer; |
284f4730 | 3182 | Fprinc (object, Qnil); |
622de3e9 KH |
3183 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3184 | call0 (intern ("help-mode")); | |
3185 | set_buffer_internal (old); | |
284f4730 JB |
3186 | return Qnil; |
3187 | } | |
3188 | ||
3189 | /* Copy out or in the info on where C-g should throw to. | |
3190 | This is used when running Lisp code from within get_char, | |
3191 | in case get_char is called recursively. | |
3192 | See read_process_output. */ | |
3193 | ||
dfcf069d | 3194 | static void |
284f4730 JB |
3195 | save_getcjmp (temp) |
3196 | jmp_buf temp; | |
3197 | { | |
3198 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3199 | } | |
3200 | ||
dfcf069d | 3201 | static void |
284f4730 JB |
3202 | restore_getcjmp (temp) |
3203 | jmp_buf temp; | |
3204 | { | |
3205 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3206 | } | |
284f4730 | 3207 | \f |
2eb6bfbe RM |
3208 | #ifdef HAVE_MOUSE |
3209 | ||
284f4730 JB |
3210 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3211 | of this function. */ | |
a9d77f1f | 3212 | |
284f4730 JB |
3213 | static Lisp_Object |
3214 | tracking_off (old_value) | |
3215 | Lisp_Object old_value; | |
3216 | { | |
71edead1 RS |
3217 | do_mouse_tracking = old_value; |
3218 | if (NILP (old_value)) | |
284f4730 | 3219 | { |
284f4730 JB |
3220 | /* Redisplay may have been preempted because there was input |
3221 | available, and it assumes it will be called again after the | |
3222 | input has been processed. If the only input available was | |
3223 | the sort that we have just disabled, then we need to call | |
3224 | redisplay. */ | |
d9d4c147 | 3225 | if (!readable_events (1)) |
284f4730 | 3226 | { |
3007ebfb | 3227 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3228 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3229 | } |
3230 | } | |
30690496 | 3231 | return Qnil; |
284f4730 JB |
3232 | } |
3233 | ||
3234 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3235 | doc: /* Evaluate BODY with mouse movement events enabled. |
3236 | Within a `track-mouse' form, mouse motion generates input events that | |
3237 | you can read with `read-event'. | |
3238 | Normally, mouse motion is ignored. | |
3239 | usage: (track-mouse BODY ...) */) | |
3240 | (args) | |
284f4730 JB |
3241 | Lisp_Object args; |
3242 | { | |
aed13378 | 3243 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3244 | Lisp_Object val; |
3245 | ||
a9d77f1f | 3246 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3247 | |
f3253854 | 3248 | do_mouse_tracking = Qt; |
df0f2ba1 | 3249 | |
284f4730 JB |
3250 | val = Fprogn (args); |
3251 | return unbind_to (count, val); | |
3252 | } | |
2eb6bfbe | 3253 | |
f3253854 KH |
3254 | /* If mouse has moved on some frame, return one of those frames. |
3255 | Return 0 otherwise. */ | |
3256 | ||
3257 | static FRAME_PTR | |
3258 | some_mouse_moved () | |
3259 | { | |
3260 | Lisp_Object tail, frame; | |
3261 | ||
3262 | FOR_EACH_FRAME (tail, frame) | |
3263 | { | |
3264 | if (XFRAME (frame)->mouse_moved) | |
3265 | return XFRAME (frame); | |
3266 | } | |
3267 | ||
3268 | return 0; | |
3269 | } | |
3270 | ||
2eb6bfbe | 3271 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3272 | \f |
3273 | /* Low level keyboard/mouse input. | |
3274 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3275 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3276 | |
3277 | /* Return true iff there are any events in the queue that read-char | |
3278 | would return. If this returns false, a read-char would block. */ | |
3279 | static int | |
20057d52 | 3280 | readable_filtered_events (do_timers_now, filter_events) |
d9d4c147 | 3281 | int do_timers_now; |
20057d52 | 3282 | int filter_events; |
a612e298 | 3283 | { |
4ec4ed6a RS |
3284 | if (do_timers_now) |
3285 | timer_check (do_timers_now); | |
3286 | ||
a0ba8995 | 3287 | /* If the buffer contains only FOCUS_IN_EVENT events, |
20057d52 | 3288 | and FILTER_EVENTS is nonzero, report it as empty. */ |
beecf6a1 | 3289 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3290 | { |
20057d52 | 3291 | int have_live_event = 1; |
a0ba8995 | 3292 | |
20057d52 JD |
3293 | if (filter_events) |
3294 | { | |
3295 | struct input_event *event; | |
3296 | ||
3297 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3298 | ? kbd_fetch_ptr | |
3299 | : kbd_buffer); | |
3300 | ||
3301 | while (have_live_event && event->kind == FOCUS_IN_EVENT) | |
3302 | { | |
3303 | event++; | |
3304 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
3305 | event = kbd_buffer; | |
3306 | if (event == kbd_store_ptr) | |
3307 | have_live_event = 0; | |
3308 | } | |
3309 | } | |
3310 | if (have_live_event) return 1; | |
a0ba8995 RS |
3311 | } |
3312 | ||
beecf6a1 | 3313 | #ifdef HAVE_MOUSE |
f3253854 | 3314 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3315 | return 1; |
3316 | #endif | |
1e8bd3da | 3317 | if (single_kboard) |
4c52b668 | 3318 | { |
c5fdd383 | 3319 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3320 | return 1; |
3321 | } | |
3322 | else | |
3323 | { | |
c5fdd383 KH |
3324 | KBOARD *kb; |
3325 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3326 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3327 | return 1; |
3328 | } | |
beecf6a1 | 3329 | return 0; |
a612e298 RS |
3330 | } |
3331 | ||
20057d52 JD |
3332 | /* Return true iff there are any events in the queue that read-char |
3333 | would return. If this returns false, a read-char would block. */ | |
3334 | static int | |
3335 | readable_events (do_timers_now) | |
3336 | int do_timers_now; | |
3337 | { | |
3338 | return readable_filtered_events (do_timers_now, 0); | |
3339 | } | |
3340 | ||
a612e298 RS |
3341 | /* Set this for debugging, to have a way to get out */ |
3342 | int stop_character; | |
284f4730 | 3343 | |
c5fdd383 KH |
3344 | #ifdef MULTI_KBOARD |
3345 | static KBOARD * | |
3346 | event_to_kboard (event) | |
5798cf15 KH |
3347 | struct input_event *event; |
3348 | { | |
3349 | Lisp_Object frame; | |
3350 | frame = event->frame_or_window; | |
3351 | if (CONSP (frame)) | |
7539e11f | 3352 | frame = XCAR (frame); |
5798cf15 KH |
3353 | else if (WINDOWP (frame)) |
3354 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3355 | ||
3356 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3357 | For now, just ignore the problem. |
3358 | Also ignore dead frames here. */ | |
3359 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3360 | return 0; |
3361 | else | |
c5fdd383 | 3362 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3363 | } |
3364 | #endif | |
3365 | ||
284f4730 JB |
3366 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3367 | ||
3368 | void | |
3369 | kbd_buffer_store_event (event) | |
3370 | register struct input_event *event; | |
3371 | { | |
3b8f9651 | 3372 | if (event->kind == NO_EVENT) |
284f4730 JB |
3373 | abort (); |
3374 | ||
3b8f9651 | 3375 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3376 | { |
e9bf89a0 | 3377 | register int c = event->code & 0377; |
284f4730 | 3378 | |
faf5e407 JB |
3379 | if (event->modifiers & ctrl_modifier) |
3380 | c = make_ctrl_char (c); | |
3381 | ||
9fd7d808 RS |
3382 | c |= (event->modifiers |
3383 | & (meta_modifier | alt_modifier | |
3384 | | hyper_modifier | super_modifier)); | |
3385 | ||
86e5706b | 3386 | if (c == quit_char) |
284f4730 | 3387 | { |
f9f1e1fc | 3388 | static SIGTYPE interrupt_signal P_ ((int)); |
c5fdd383 KH |
3389 | #ifdef MULTI_KBOARD |
3390 | KBOARD *kb; | |
5798cf15 KH |
3391 | struct input_event *sp; |
3392 | ||
1e8bd3da | 3393 | if (single_kboard |
c5fdd383 KH |
3394 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3395 | kb != current_kboard)) | |
5798cf15 | 3396 | { |
c5fdd383 | 3397 | kb->kbd_queue |
5798cf15 KH |
3398 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3399 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3400 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3401 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3402 | { | |
3403 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3404 | sp = kbd_buffer; | |
3405 | ||
c5fdd383 | 3406 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3407 | { |
3b8f9651 | 3408 | sp->kind = NO_EVENT; |
5798cf15 | 3409 | sp->frame_or_window = Qnil; |
da8f7368 | 3410 | sp->arg = Qnil; |
5798cf15 KH |
3411 | } |
3412 | } | |
3413 | return; | |
3414 | } | |
3415 | #endif | |
3e51c7b7 | 3416 | |
284f4730 | 3417 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3418 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3419 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3420 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3421 | { |
9b8eb840 | 3422 | Lisp_Object focus; |
4bb994d1 | 3423 | |
9b8eb840 | 3424 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3425 | if (NILP (focus)) |
beecf6a1 | 3426 | focus = event->frame_or_window; |
4c52b668 KH |
3427 | internal_last_event_frame = focus; |
3428 | Vlast_event_frame = focus; | |
4bb994d1 | 3429 | } |
3e51c7b7 | 3430 | |
ffd56f97 | 3431 | last_event_timestamp = event->timestamp; |
7189cad8 | 3432 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3433 | return; |
3434 | } | |
3435 | ||
3436 | if (c && c == stop_character) | |
3437 | { | |
3438 | sys_suspend (); | |
3439 | return; | |
3440 | } | |
284f4730 | 3441 | } |
3b8f9651 | 3442 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3443 | Just ignore the second one. */ |
3b8f9651 | 3444 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3445 | && kbd_fetch_ptr != kbd_store_ptr |
3b8f9651 | 3446 | && kbd_store_ptr->kind == BUFFER_SWITCH_EVENT) |
3fe8e9a2 | 3447 | return; |
284f4730 | 3448 | |
beecf6a1 KH |
3449 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3450 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3451 | |
3452 | /* Don't let the very last slot in the buffer become full, | |
3453 | since that would make the two pointers equal, | |
3454 | and that is indistinguishable from an empty buffer. | |
3455 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3456 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3457 | { |
da8f7368 GM |
3458 | int idx; |
3459 | ||
3b8f9651 | 3460 | #if 0 /* The SELECTION_REQUEST_EVENT case looks bogus, and it's error |
da8f7368 GM |
3461 | prone to assign individual members for other events, in case |
3462 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3463 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3464 | sp->kind = event->kind; |
3b8f9651 | 3465 | if (event->kind == SELECTION_REQUEST_EVENT) |
27203ead RS |
3466 | { |
3467 | /* We must not use the ordinary copying code for this case, | |
3468 | since `part' is an enum and copying it might not copy enough | |
3469 | in this case. */ | |
612b78ef | 3470 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3471 | } |
3472 | else | |
da8f7368 | 3473 | |
27203ead | 3474 | { |
612b78ef KH |
3475 | sp->code = event->code; |
3476 | sp->part = event->part; | |
3477 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3478 | sp->arg = event->arg; |
612b78ef KH |
3479 | sp->modifiers = event->modifiers; |
3480 | sp->x = event->x; | |
3481 | sp->y = event->y; | |
3482 | sp->timestamp = event->timestamp; | |
27203ead | 3483 | } |
da8f7368 GM |
3484 | #else |
3485 | *kbd_store_ptr = *event; | |
3486 | #endif | |
284f4730 | 3487 | |
da8f7368 GM |
3488 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3489 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3490 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3491 | ++kbd_store_ptr; | |
284f4730 JB |
3492 | } |
3493 | } | |
8dfd92c9 GM |
3494 | |
3495 | ||
f139e559 | 3496 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3497 | SIZE events. If there's not enough room in BUFP, ignore this |
3498 | event. | |
8dfd92c9 GM |
3499 | |
3500 | HELP is the help form. | |
3501 | ||
3502 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3503 | Lisp object where the help was found (a buffer, a string, an |
3504 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3505 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3506 | |
3507 | Value is the number of input_events generated. */ | |
3508 | ||
3509 | int | |
0bbfdc25 | 3510 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3511 | struct input_event *bufp; |
0bbfdc25 | 3512 | int size; |
2190735a | 3513 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3514 | int pos; |
3515 | { | |
2e1a49ad | 3516 | if (size >= 1) |
0bbfdc25 GM |
3517 | { |
3518 | bufp->kind = HELP_EVENT; | |
3519 | bufp->frame_or_window = frame; | |
3520 | bufp->arg = object; | |
2e1a49ad SM |
3521 | bufp->x = WINDOWP (window) ? window : frame; |
3522 | bufp->y = help; | |
78134789 | 3523 | bufp->code = pos; |
2e1a49ad | 3524 | return 1; |
0bbfdc25 | 3525 | } |
2e1a49ad | 3526 | return 0; |
8dfd92c9 GM |
3527 | } |
3528 | ||
3529 | ||
3530 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3531 | ||
3532 | void | |
3533 | kbd_buffer_store_help_event (frame, help) | |
3534 | Lisp_Object frame, help; | |
3535 | { | |
3536 | struct input_event event; | |
3537 | ||
3538 | event.kind = HELP_EVENT; | |
3539 | event.frame_or_window = frame; | |
3540 | event.arg = Qnil; | |
2e1a49ad SM |
3541 | event.x = Qnil; |
3542 | event.y = help; | |
8dfd92c9 GM |
3543 | event.code = 0; |
3544 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3545 | } |
3546 | ||
a612e298 | 3547 | \f |
07de30b9 | 3548 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3549 | NO_EVENT. */ |
07de30b9 GV |
3550 | void |
3551 | discard_mouse_events () | |
3552 | { | |
3553 | struct input_event *sp; | |
3554 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3555 | { | |
3556 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3557 | sp = kbd_buffer; | |
3558 | ||
3b8f9651 | 3559 | if (sp->kind == MOUSE_CLICK_EVENT |
07de30b9 | 3560 | #ifdef WINDOWSNT |
3b8f9651 | 3561 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3562 | #endif |
3b8f9651 | 3563 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3564 | { |
3b8f9651 | 3565 | sp->kind = NO_EVENT; |
07de30b9 GV |
3566 | } |
3567 | } | |
3568 | } | |
eeabfe76 | 3569 | |
0bbfdc25 GM |
3570 | |
3571 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3572 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3573 | |
3b8f9651 | 3574 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3575 | the input queue, possibly leaving the input queue empty if there |
3576 | are no real input events. */ | |
3577 | ||
eeabfe76 EZ |
3578 | int |
3579 | kbd_buffer_events_waiting (discard) | |
3580 | int discard; | |
3581 | { | |
3582 | struct input_event *sp; | |
0bbfdc25 GM |
3583 | |
3584 | for (sp = kbd_fetch_ptr; | |
3b8f9651 | 3585 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3586 | ++sp) |
eeabfe76 EZ |
3587 | { |
3588 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3589 | sp = kbd_buffer; | |
eeabfe76 | 3590 | } |
0bbfdc25 | 3591 | |
eeabfe76 EZ |
3592 | if (discard) |
3593 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3594 | |
3b8f9651 | 3595 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3596 | } |
0bbfdc25 | 3597 | |
07de30b9 | 3598 | \f |
0bbfdc25 GM |
3599 | /* Clear input event EVENT. */ |
3600 | ||
3601 | static INLINE void | |
3602 | clear_event (event) | |
3603 | struct input_event *event; | |
3604 | { | |
3605 | int idx = 2 * (event - kbd_buffer); | |
3606 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3607 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3b8f9651 | 3608 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3609 | } |
3610 | ||
3611 | ||
a612e298 RS |
3612 | /* Read one event from the event buffer, waiting if necessary. |
3613 | The value is a Lisp object representing the event. | |
3614 | The value is nil for an event that should be ignored, | |
3615 | or that was handled here. | |
3616 | We always read and discard one event. */ | |
284f4730 JB |
3617 | |
3618 | static Lisp_Object | |
83d68044 | 3619 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3620 | KBOARD **kbp; |
83d68044 | 3621 | int *used_mouse_menu; |
284f4730 JB |
3622 | { |
3623 | register int c; | |
3624 | Lisp_Object obj; | |
3625 | ||
3626 | if (noninteractive) | |
3627 | { | |
3628 | c = getchar (); | |
18cd2eeb | 3629 | XSETINT (obj, c); |
f5b56972 | 3630 | *kbp = current_kboard; |
284f4730 JB |
3631 | return obj; |
3632 | } | |
3633 | ||
3634 | /* Wait until there is input available. */ | |
3635 | for (;;) | |
3636 | { | |
beecf6a1 KH |
3637 | if (kbd_fetch_ptr != kbd_store_ptr) |
3638 | break; | |
3639 | #ifdef HAVE_MOUSE | |
f3253854 | 3640 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3641 | break; |
beecf6a1 | 3642 | #endif |
284f4730 JB |
3643 | |
3644 | /* If the quit flag is set, then read_char will return | |
3645 | quit_char, so that counts as "available input." */ | |
3646 | if (!NILP (Vquit_flag)) | |
3647 | quit_throw_to_read_char (); | |
3648 | ||
3649 | /* One way or another, wait until input is available; then, if | |
3650 | interrupt handlers have not read it, read it now. */ | |
3651 | ||
3652 | #ifdef OLDVMS | |
3653 | wait_for_kbd_input (); | |
3654 | #else | |
3655 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3656 | #ifdef SIGIO | |
3657 | gobble_input (0); | |
3658 | #endif /* SIGIO */ | |
beecf6a1 KH |
3659 | if (kbd_fetch_ptr != kbd_store_ptr) |
3660 | break; | |
3661 | #ifdef HAVE_MOUSE | |
f3253854 | 3662 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3663 | break; |
3664 | #endif | |
3665 | { | |
3666 | Lisp_Object minus_one; | |
f76475ad | 3667 | |
beecf6a1 | 3668 | XSETINT (minus_one, -1); |
d9d4c147 | 3669 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3670 | |
beecf6a1 KH |
3671 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3672 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3673 | read_avail_input (1); | |
3674 | } | |
284f4730 JB |
3675 | #endif /* not VMS */ |
3676 | } | |
3677 | ||
303b5b3f RS |
3678 | if (CONSP (Vunread_command_events)) |
3679 | { | |
3680 | Lisp_Object first; | |
7539e11f KR |
3681 | first = XCAR (Vunread_command_events); |
3682 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3683 | *kbp = current_kboard; |
3684 | return first; | |
3685 | } | |
3686 | ||
284f4730 JB |
3687 | /* At this point, we know that there is a readable event available |
3688 | somewhere. If the event queue is empty, then there must be a | |
3689 | mouse movement enabled and available. */ | |
beecf6a1 | 3690 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3691 | { |
cd21b839 | 3692 | struct input_event *event; |
3e51c7b7 | 3693 | |
beecf6a1 KH |
3694 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3695 | ? kbd_fetch_ptr | |
3696 | : kbd_buffer); | |
3e51c7b7 | 3697 | |
cd21b839 | 3698 | last_event_timestamp = event->timestamp; |
cd21b839 | 3699 | |
c5fdd383 KH |
3700 | #ifdef MULTI_KBOARD |
3701 | *kbp = event_to_kboard (event); | |
3702 | if (*kbp == 0) | |
3703 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3704 | #else |
c5fdd383 | 3705 | *kbp = &the_only_kboard; |
5798cf15 | 3706 | #endif |
beecf6a1 | 3707 | |
4bb994d1 JB |
3708 | obj = Qnil; |
3709 | ||
48e416d4 | 3710 | /* These two kinds of events get special handling |
a612e298 RS |
3711 | and don't actually appear to the command loop. |
3712 | We return nil for them. */ | |
3b8f9651 | 3713 | if (event->kind == SELECTION_REQUEST_EVENT) |
48e416d4 | 3714 | { |
598a9fa7 | 3715 | #ifdef HAVE_X11 |
1e8bd3da RS |
3716 | struct input_event copy; |
3717 | ||
4581e928 RS |
3718 | /* Remove it from the buffer before processing it, |
3719 | since otherwise swallow_events will see it | |
3720 | and process it again. */ | |
1e8bd3da | 3721 | copy = *event; |
beecf6a1 | 3722 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3723 | input_pending = readable_events (0); |
4581e928 | 3724 | x_handle_selection_request (©); |
598a9fa7 JB |
3725 | #else |
3726 | /* We're getting selection request events, but we don't have | |
3727 | a window system. */ | |
3728 | abort (); | |
3729 | #endif | |
48e416d4 RS |
3730 | } |
3731 | ||
3b8f9651 | 3732 | else if (event->kind == SELECTION_CLEAR_EVENT) |
48e416d4 | 3733 | { |
598a9fa7 | 3734 | #ifdef HAVE_X11 |
e0301c07 RS |
3735 | struct input_event copy; |
3736 | ||
3737 | /* Remove it from the buffer before processing it. */ | |
3738 | copy = *event; | |
beecf6a1 | 3739 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3740 | input_pending = readable_events (0); |
90c2bb0c | 3741 | x_handle_selection_clear (©); |
598a9fa7 JB |
3742 | #else |
3743 | /* We're getting selection request events, but we don't have | |
3744 | a window system. */ | |
3745 | abort (); | |
3746 | #endif | |
48e416d4 | 3747 | } |
e0f712ba | 3748 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3749 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3750 | { |
bbdc2092 RS |
3751 | /* Make an event (delete-frame (FRAME)). */ |
3752 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3753 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3754 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3755 | } |
1a578e9b AC |
3756 | #endif |
3757 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
3b8f9651 | 3758 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
3759 | { |
3760 | /* Make an event (iconify-frame (FRAME)). */ | |
3761 | obj = Fcons (event->frame_or_window, Qnil); | |
3762 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3763 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3764 | } |
3b8f9651 | 3765 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
3766 | { |
3767 | /* Make an event (make-frame-visible (FRAME)). */ | |
3768 | obj = Fcons (event->frame_or_window, Qnil); | |
3769 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3770 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3771 | } |
3772 | #endif | |
3b8f9651 | 3773 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
3774 | { |
3775 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3776 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3777 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3778 | } |
e0f712ba | 3779 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3780 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
3781 | { |
3782 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3783 | input_pending = readable_events (0); |
e649d076 RS |
3784 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3785 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3786 | } |
1161d367 GV |
3787 | #endif |
3788 | #ifdef WINDOWSNT | |
3b8f9651 | 3789 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
3790 | { |
3791 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3792 | obj = Fcons (event->modifiers, Qnil); | |
15fdc2e3 | 3793 | obj = Fcons (event->code, obj); |
1161d367 GV |
3794 | obj = Fcons (event->frame_or_window, obj); |
3795 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3796 | kbd_fetch_ptr = event + 1; | |
3797 | } | |
099787c1 | 3798 | #endif |
3b8f9651 | 3799 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
3800 | { |
3801 | obj = Fcons (Qsave_session, Qnil); | |
3802 | kbd_fetch_ptr = event + 1; | |
3803 | } | |
a612e298 | 3804 | /* Just discard these, by returning nil. |
c5fdd383 | 3805 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3806 | when we need to randomly delete events from the queue. |
3807 | (They shouldn't otherwise be found in the buffer, | |
3808 | but on some machines it appears they do show up | |
c5fdd383 | 3809 | even without MULTI_KBOARD.) */ |
3b8f9651 | 3810 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 3811 | mouse events during a popup-menu call. */ |
3b8f9651 | 3812 | else if (event->kind == NO_EVENT) |
beecf6a1 | 3813 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3814 | else if (event->kind == HELP_EVENT) |
3815 | { | |
2190735a | 3816 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3817 | |
8dfd92c9 GM |
3818 | frame = event->frame_or_window; |
3819 | object = event->arg; | |
2e1a49ad SM |
3820 | position = make_number (event->code); |
3821 | window = event->x; | |
3822 | help = event->y; | |
0bbfdc25 | 3823 | clear_event (event); |
e4457b09 GM |
3824 | |
3825 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
3826 | if (!WINDOWP (window)) |
3827 | window = Qnil; | |
3828 | obj = Fcons (Qhelp_echo, | |
3829 | list5 (frame, help, window, object, position)); | |
7ee32cda | 3830 | } |
c51c7093 GM |
3831 | else if (event->kind == FOCUS_IN_EVENT) |
3832 | { | |
3833 | /* Notification of a FocusIn event. The frame receiving the | |
3834 | focus is in event->frame_or_window. Generate a | |
3835 | switch-frame event if necessary. */ | |
3836 | Lisp_Object frame, focus; | |
3837 | ||
3838 | frame = event->frame_or_window; | |
3839 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3840 | if (FRAMEP (focus)) | |
3841 | frame = focus; | |
3842 | ||
3843 | if (!EQ (frame, internal_last_event_frame) | |
3844 | && !EQ (frame, selected_frame)) | |
3845 | obj = make_lispy_switch_frame (frame); | |
3846 | internal_last_event_frame = frame; | |
a697f886 PJ |
3847 | kbd_fetch_ptr = event + 1; |
3848 | } | |
3849 | else if (event->kind == SELECT_WINDOW_EVENT) | |
3850 | { | |
3851 | /* Make an event (select-window (WINDOW)). */ | |
3852 | obj = Fcons (event->frame_or_window, Qnil); | |
3853 | obj = Fcons (Qselect_window, Fcons (obj, Qnil)); | |
3854 | ||
c51c7093 GM |
3855 | kbd_fetch_ptr = event + 1; |
3856 | } | |
1e12dd87 RS |
3857 | else |
3858 | { | |
c51c7093 GM |
3859 | /* If this event is on a different frame, return a switch-frame this |
3860 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3861 | Lisp_Object frame; |
1e12dd87 | 3862 | Lisp_Object focus; |
7b4aedb9 | 3863 | |
9b8eb840 | 3864 | frame = event->frame_or_window; |
2470a66f | 3865 | if (CONSP (frame)) |
7539e11f | 3866 | frame = XCAR (frame); |
2470a66f | 3867 | else if (WINDOWP (frame)) |
1e12dd87 | 3868 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3869 | |
1e12dd87 RS |
3870 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3871 | if (! NILP (focus)) | |
3872 | frame = focus; | |
07d2b8de | 3873 | |
4c52b668 | 3874 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3875 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3876 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3877 | internal_last_event_frame = frame; |
4bb994d1 | 3878 | |
1e12dd87 RS |
3879 | /* If we didn't decide to make a switch-frame event, go ahead |
3880 | and build a real event from the queue entry. */ | |
cd21b839 | 3881 | |
1e12dd87 RS |
3882 | if (NILP (obj)) |
3883 | { | |
3884 | obj = make_lispy_event (event); | |
da8f7368 | 3885 | |
742fbed7 | 3886 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) |
83d68044 KH |
3887 | /* If this was a menu selection, then set the flag to inhibit |
3888 | writing to last_nonmenu_event. Don't do this if the event | |
3889 | we're returning is (menu-bar), though; that indicates the | |
3890 | beginning of the menu sequence, and we might as well leave | |
3891 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
3892 | if (used_mouse_menu |
3893 | && !EQ (event->frame_or_window, event->arg) | |
3894 | && (event->kind == MENU_BAR_EVENT | |
3895 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
3896 | *used_mouse_menu = 1; |
3897 | #endif | |
1e12dd87 RS |
3898 | |
3899 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 3900 | clear_event (event); |
beecf6a1 | 3901 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3902 | } |
4bb994d1 | 3903 | } |
284f4730 | 3904 | } |
2eb6bfbe | 3905 | #ifdef HAVE_MOUSE |
a612e298 | 3906 | /* Try generating a mouse motion event. */ |
f3253854 | 3907 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3908 | { |
f3253854 | 3909 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3910 | Lisp_Object bar_window; |
3c370943 | 3911 | enum scroll_bar_part part; |
e5d77022 JB |
3912 | Lisp_Object x, y; |
3913 | unsigned long time; | |
284f4730 | 3914 | |
c5fdd383 | 3915 | *kbp = current_kboard; |
e177ac3a RS |
3916 | /* Note that this uses F to determine which display to look at. |
3917 | If there is no valid info, it does not store anything | |
3918 | so x remains nil. */ | |
3919 | x = Qnil; | |
dd26ab75 | 3920 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3921 | |
3922 | obj = Qnil; | |
284f4730 | 3923 | |
4bb994d1 JB |
3924 | /* Decide if we should generate a switch-frame event. Don't |
3925 | generate switch-frame events for motion outside of all Emacs | |
3926 | frames. */ | |
e177ac3a | 3927 | if (!NILP (x) && f) |
cd21b839 | 3928 | { |
9b8eb840 | 3929 | Lisp_Object frame; |
4bb994d1 | 3930 | |
9b8eb840 | 3931 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3932 | if (NILP (frame)) |
18cd2eeb | 3933 | XSETFRAME (frame, f); |
4bb994d1 | 3934 | |
4c52b668 | 3935 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3936 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3937 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3938 | internal_last_event_frame = frame; |
cd21b839 | 3939 | } |
4bb994d1 | 3940 | |
df0f2ba1 | 3941 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3942 | return a mouse-motion event. */ |
e177ac3a | 3943 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3944 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3945 | } |
2eb6bfbe | 3946 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3947 | else |
3948 | /* We were promised by the above while loop that there was | |
3949 | something for us to read! */ | |
3950 | abort (); | |
3951 | ||
d9d4c147 | 3952 | input_pending = readable_events (0); |
284f4730 | 3953 | |
4c52b668 | 3954 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3955 | |
284f4730 JB |
3956 | return (obj); |
3957 | } | |
a612e298 RS |
3958 | \f |
3959 | /* Process any events that are not user-visible, | |
3960 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3961 | |
3962 | void | |
d9d4c147 KH |
3963 | swallow_events (do_display) |
3964 | int do_display; | |
3a3b9632 | 3965 | { |
87dd9b9b RS |
3966 | int old_timers_run; |
3967 | ||
beecf6a1 | 3968 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3969 | { |
3970 | struct input_event *event; | |
3971 | ||
beecf6a1 KH |
3972 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3973 | ? kbd_fetch_ptr | |
3974 | : kbd_buffer); | |
3a3b9632 RS |
3975 | |
3976 | last_event_timestamp = event->timestamp; | |
3977 | ||
3978 | /* These two kinds of events get special handling | |
3979 | and don't actually appear to the command loop. */ | |
3b8f9651 | 3980 | if (event->kind == SELECTION_REQUEST_EVENT) |
3a3b9632 RS |
3981 | { |
3982 | #ifdef HAVE_X11 | |
4581e928 | 3983 | struct input_event copy; |
e0301c07 RS |
3984 | |
3985 | /* Remove it from the buffer before processing it, | |
3986 | since otherwise swallow_events called recursively could see it | |
3987 | and process it again. */ | |
4581e928 | 3988 | copy = *event; |
beecf6a1 | 3989 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3990 | input_pending = readable_events (0); |
4581e928 | 3991 | x_handle_selection_request (©); |
3a3b9632 RS |
3992 | #else |
3993 | /* We're getting selection request events, but we don't have | |
3994 | a window system. */ | |
3995 | abort (); | |
3996 | #endif | |
3997 | } | |
3998 | ||
3b8f9651 | 3999 | else if (event->kind == SELECTION_CLEAR_EVENT) |
3a3b9632 RS |
4000 | { |
4001 | #ifdef HAVE_X11 | |
e0301c07 RS |
4002 | struct input_event copy; |
4003 | ||
4004 | /* Remove it from the buffer before processing it, */ | |
4005 | copy = *event; | |
4006 | ||
beecf6a1 | 4007 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4008 | input_pending = readable_events (0); |
90c2bb0c | 4009 | x_handle_selection_clear (©); |
3a3b9632 RS |
4010 | #else |
4011 | /* We're getting selection request events, but we don't have | |
4012 | a window system. */ | |
4013 | abort (); | |
4014 | #endif | |
4015 | } | |
4016 | else | |
4017 | break; | |
4018 | } | |
4019 | ||
87dd9b9b | 4020 | old_timers_run = timers_run; |
d9d4c147 | 4021 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
4022 | |
4023 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4024 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4025 | } |
a612e298 | 4026 | \f |
d9d4c147 KH |
4027 | /* Record the start of when Emacs is idle, |
4028 | for the sake of running idle-time timers. */ | |
4029 | ||
07a59269 | 4030 | void |
d9d4c147 KH |
4031 | timer_start_idle () |
4032 | { | |
4033 | Lisp_Object timers; | |
4034 | ||
4035 | /* If we are already in the idle state, do nothing. */ | |
4036 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4037 | return; | |
4038 | ||
4039 | EMACS_GET_TIME (timer_idleness_start_time); | |
4040 | ||
3021d3a9 RS |
4041 | timer_last_idleness_start_time = timer_idleness_start_time; |
4042 | ||
d9d4c147 | 4043 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4044 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4045 | { |
4046 | Lisp_Object timer; | |
4047 | ||
7539e11f | 4048 | timer = XCAR (timers); |
d9d4c147 KH |
4049 | |
4050 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4051 | continue; | |
4052 | XVECTOR (timer)->contents[0] = Qnil; | |
4053 | } | |
4054 | } | |
4055 | ||
4056 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4057 | ||
07a59269 | 4058 | void |
d9d4c147 KH |
4059 | timer_stop_idle () |
4060 | { | |
4061 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4062 | } | |
4063 | ||
e044e87c RS |
4064 | /* This is only for debugging. */ |
4065 | struct input_event last_timer_event; | |
4066 | ||
c04cbc3b RS |
4067 | /* Check whether a timer has fired. To prevent larger problems we simply |
4068 | disregard elements that are not proper timers. Do not make a circular | |
4069 | timer list for the time being. | |
4070 | ||
4071 | Returns the number of seconds to wait until the next timer fires. If a | |
4072 | timer is triggering now, return zero seconds. | |
4073 | If no timer is active, return -1 seconds. | |
4074 | ||
4ec4ed6a RS |
4075 | If a timer is ripe, we run it, with quitting turned off. |
4076 | ||
4077 | DO_IT_NOW is now ignored. It used to mean that we should | |
4078 | run the timer directly instead of queueing a timer-event. | |
4079 | Now we always run timers directly. */ | |
c04cbc3b RS |
4080 | |
4081 | EMACS_TIME | |
4082 | timer_check (do_it_now) | |
4083 | int do_it_now; | |
4084 | { | |
4085 | EMACS_TIME nexttime; | |
9291c072 RS |
4086 | EMACS_TIME now, idleness_now; |
4087 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4088 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4089 | |
c04cbc3b RS |
4090 | EMACS_SET_SECS (nexttime, -1); |
4091 | EMACS_SET_USECS (nexttime, -1); | |
4092 | ||
9291c072 | 4093 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4094 | timers = Vtimer_list; |
9291c072 RS |
4095 | /* Consider the idle timers only if Emacs is idle. */ |
4096 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4097 | idle_timers = Vtimer_idle_list; | |
4098 | else | |
4099 | idle_timers = Qnil; | |
4100 | chosen_timer = Qnil; | |
4101 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4102 | |
9291c072 | 4103 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4104 | { |
9291c072 RS |
4105 | EMACS_GET_TIME (now); |
4106 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4107 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4108 | } | |
c04cbc3b | 4109 | |
9291c072 RS |
4110 | while (CONSP (timers) || CONSP (idle_timers)) |
4111 | { | |
9291c072 | 4112 | Lisp_Object *vector; |
8c907a56 | 4113 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4114 | EMACS_TIME timer_time, idle_timer_time; |
4115 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4116 | ||
4117 | /* Skip past invalid timers and timers already handled. */ | |
4118 | if (!NILP (timers)) | |
c04cbc3b | 4119 | { |
7539e11f | 4120 | timer = XCAR (timers); |
9291c072 RS |
4121 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4122 | { | |
7539e11f | 4123 | timers = XCDR (timers); |
9291c072 RS |
4124 | continue; |
4125 | } | |
4126 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4127 | |
9291c072 RS |
4128 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4129 | || !INTEGERP (vector[3]) | |
4130 | || ! NILP (vector[0])) | |
4131 | { | |
7539e11f | 4132 | timers = XCDR (timers); |
9291c072 RS |
4133 | continue; |
4134 | } | |
4135 | } | |
4136 | if (!NILP (idle_timers)) | |
4137 | { | |
7539e11f | 4138 | timer = XCAR (idle_timers); |
d9d4c147 | 4139 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4140 | { |
7539e11f | 4141 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4142 | continue; |
4143 | } | |
d9d4c147 KH |
4144 | vector = XVECTOR (timer)->contents; |
4145 | ||
4146 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4147 | || !INTEGERP (vector[3]) |
4148 | || ! NILP (vector[0])) | |
4149 | { | |
7539e11f | 4150 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4151 | continue; |
4152 | } | |
4153 | } | |
d9d4c147 | 4154 | |
9291c072 RS |
4155 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4156 | based on the next ordinary timer. | |
4157 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4158 | this timer becomes ripe (negative if it's already ripe). */ | |
4159 | if (!NILP (timers)) | |
4160 | { | |
7539e11f | 4161 | timer = XCAR (timers); |
9291c072 | 4162 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4163 | EMACS_SET_SECS (timer_time, |
4164 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4165 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4166 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4167 | } | |
ba8dfba8 | 4168 | |
9291c072 RS |
4169 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4170 | based on the next idle timer. */ | |
4171 | if (!NILP (idle_timers)) | |
4172 | { | |
7539e11f | 4173 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4174 | vector = XVECTOR (idle_timer)->contents; |
4175 | EMACS_SET_SECS (idle_timer_time, | |
4176 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4177 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4178 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4179 | } | |
ba8dfba8 | 4180 | |
9291c072 RS |
4181 | /* Decide which timer is the next timer, |
4182 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4183 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4184 | |
9291c072 RS |
4185 | if (! NILP (timers) && ! NILP (idle_timers)) |
4186 | { | |
4187 | EMACS_TIME temp; | |
4188 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4189 | if (EMACS_TIME_NEG_P (temp)) | |
4190 | { | |
4191 | chosen_timer = timer; | |
7539e11f | 4192 | timers = XCDR (timers); |
9291c072 | 4193 | difference = timer_difference; |
c04cbc3b | 4194 | } |
d9d4c147 | 4195 | else |
d9d4c147 | 4196 | { |
9291c072 | 4197 | chosen_timer = idle_timer; |
7539e11f | 4198 | idle_timers = XCDR (idle_timers); |
9291c072 | 4199 | difference = idle_timer_difference; |
d9d4c147 | 4200 | } |
7ea13e12 | 4201 | } |
9291c072 RS |
4202 | else if (! NILP (timers)) |
4203 | { | |
4204 | chosen_timer = timer; | |
7539e11f | 4205 | timers = XCDR (timers); |
9291c072 RS |
4206 | difference = timer_difference; |
4207 | } | |
4208 | else | |
4209 | { | |
4210 | chosen_timer = idle_timer; | |
7539e11f | 4211 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4212 | difference = idle_timer_difference; |
4213 | } | |
4214 | vector = XVECTOR (chosen_timer)->contents; | |
4215 | ||
bd55b860 | 4216 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4217 | if (EMACS_TIME_NEG_P (difference) |
4218 | || (EMACS_SECS (difference) == 0 | |
4219 | && EMACS_USECS (difference) == 0)) | |
4220 | { | |
4221 | if (NILP (vector[0])) | |
4222 | { | |
d925fb39 | 4223 | int was_locked = single_kboard; |
331379bf | 4224 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4225 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4226 | |
9291c072 RS |
4227 | /* Mark the timer as triggered to prevent problems if the lisp |
4228 | code fails to reschedule it right. */ | |
4229 | vector[0] = Qt; | |
4230 | ||
d925fb39 | 4231 | specbind (Qinhibit_quit, Qt); |
d0bbfc99 | 4232 | |
d925fb39 | 4233 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4234 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4235 | timers_run++; |
d925fb39 | 4236 | unbind_to (count, Qnil); |
4ec4ed6a | 4237 | |
d925fb39 RS |
4238 | /* Resume allowing input from any kboard, if that was true before. */ |
4239 | if (!was_locked) | |
4240 | any_kboard_state (); | |
9291c072 | 4241 | |
d925fb39 RS |
4242 | /* Since we have handled the event, |
4243 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4244 | } |
4245 | } | |
4246 | else | |
4247 | /* When we encounter a timer that is still waiting, | |
4248 | return the amount of time to wait before it is ripe. */ | |
4249 | { | |
4250 | UNGCPRO; | |
9291c072 RS |
4251 | return difference; |
4252 | } | |
c04cbc3b | 4253 | } |
9291c072 | 4254 | |
7ea13e12 RS |
4255 | /* No timers are pending in the future. */ |
4256 | /* Return 0 if we generated an event, and -1 if not. */ | |
4257 | UNGCPRO; | |
c04cbc3b RS |
4258 | return nexttime; |
4259 | } | |
4260 | \f | |
284f4730 | 4261 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4262 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4263 | static Lisp_Object func_key_syms; |
4264 | static Lisp_Object mouse_syms; | |
742fbed7 | 4265 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
4266 | static Lisp_Object mouse_wheel_syms; |
4267 | #endif | |
a24dc617 | 4268 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4269 | |
e9bf89a0 RS |
4270 | /* This is a list of keysym codes for special "accent" characters. |
4271 | It parallels lispy_accent_keys. */ | |
4272 | ||
4273 | static int lispy_accent_codes[] = | |
4274 | { | |
79a7046c | 4275 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4276 | XK_dead_circumflex, |
79a7046c RS |
4277 | #else |
4278 | 0, | |
4279 | #endif | |
4280 | #ifdef XK_dead_grave | |
e9bf89a0 | 4281 | XK_dead_grave, |
79a7046c RS |
4282 | #else |
4283 | 0, | |
4284 | #endif | |
4285 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4286 | XK_dead_tilde, |
79a7046c RS |
4287 | #else |
4288 | 0, | |
4289 | #endif | |
4290 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4291 | XK_dead_diaeresis, |
79a7046c RS |
4292 | #else |
4293 | 0, | |
4294 | #endif | |
4295 | #ifdef XK_dead_macron | |
e9bf89a0 | 4296 | XK_dead_macron, |
79a7046c RS |
4297 | #else |
4298 | 0, | |
4299 | #endif | |
4300 | #ifdef XK_dead_degree | |
e9bf89a0 | 4301 | XK_dead_degree, |
79a7046c RS |
4302 | #else |
4303 | 0, | |
4304 | #endif | |
4305 | #ifdef XK_dead_acute | |
e9bf89a0 | 4306 | XK_dead_acute, |
79a7046c RS |
4307 | #else |
4308 | 0, | |
4309 | #endif | |
4310 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4311 | XK_dead_cedilla, |
79a7046c RS |
4312 | #else |
4313 | 0, | |
4314 | #endif | |
4315 | #ifdef XK_dead_breve | |
e9bf89a0 | 4316 | XK_dead_breve, |
79a7046c RS |
4317 | #else |
4318 | 0, | |
4319 | #endif | |
4320 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4321 | XK_dead_ogonek, |
79a7046c RS |
4322 | #else |
4323 | 0, | |
4324 | #endif | |
4325 | #ifdef XK_dead_caron | |
e9bf89a0 | 4326 | XK_dead_caron, |
79a7046c RS |
4327 | #else |
4328 | 0, | |
4329 | #endif | |
4330 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4331 | XK_dead_doubleacute, |
79a7046c RS |
4332 | #else |
4333 | 0, | |
4334 | #endif | |
4335 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4336 | XK_dead_abovedot, |
79a7046c RS |
4337 | #else |
4338 | 0, | |
4339 | #endif | |
e9bf89a0 RS |
4340 | }; |
4341 | ||
4342 | /* This is a list of Lisp names for special "accent" characters. | |
4343 | It parallels lispy_accent_codes. */ | |
4344 | ||
4345 | static char *lispy_accent_keys[] = | |
4346 | { | |
4347 | "dead-circumflex", | |
4348 | "dead-grave", | |
4349 | "dead-tilde", | |
4350 | "dead-diaeresis", | |
4351 | "dead-macron", | |
4352 | "dead-degree", | |
4353 | "dead-acute", | |
4354 | "dead-cedilla", | |
4355 | "dead-breve", | |
4356 | "dead-ogonek", | |
4357 | "dead-caron", | |
4358 | "dead-doubleacute", | |
4359 | "dead-abovedot", | |
4360 | }; | |
4361 | ||
e98a93eb GV |
4362 | #ifdef HAVE_NTGUI |
4363 | #define FUNCTION_KEY_OFFSET 0x0 | |
4364 | ||
4365 | char *lispy_function_keys[] = | |
4366 | { | |
4367 | 0, /* 0 */ | |
4368 | ||
4369 | 0, /* VK_LBUTTON 0x01 */ | |
4370 | 0, /* VK_RBUTTON 0x02 */ | |
4371 | "cancel", /* VK_CANCEL 0x03 */ | |
4372 | 0, /* VK_MBUTTON 0x04 */ | |
4373 | ||
4374 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
4375 | ||
4376 | "backspace", /* VK_BACK 0x08 */ | |
4377 | "tab", /* VK_TAB 0x09 */ | |
4378 | ||
4379 | 0, 0, /* 0x0A .. 0x0B */ | |
4380 | ||
4381 | "clear", /* VK_CLEAR 0x0C */ | |
4382 | "return", /* VK_RETURN 0x0D */ | |
4383 | ||
4384 | 0, 0, /* 0x0E .. 0x0F */ | |
4385 | ||
1161d367 GV |
4386 | 0, /* VK_SHIFT 0x10 */ |
4387 | 0, /* VK_CONTROL 0x11 */ | |
4388 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4389 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4390 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
4391 | |
4392 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
4393 | ||
1161d367 | 4394 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
4395 | |
4396 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
4397 | ||
4398 | 0, /* VK_SPACE 0x20 */ | |
4399 | "prior", /* VK_PRIOR 0x21 */ | |
4400 | "next", /* VK_NEXT 0x22 */ | |
4401 | "end", /* VK_END 0x23 */ | |
4402 | "home", /* VK_HOME 0x24 */ | |
4403 | "left", /* VK_LEFT 0x25 */ | |
4404 | "up", /* VK_UP 0x26 */ | |
4405 | "right", /* VK_RIGHT 0x27 */ | |
4406 | "down", /* VK_DOWN 0x28 */ | |
4407 | "select", /* VK_SELECT 0x29 */ | |
4408 | "print", /* VK_PRINT 0x2A */ | |
4409 | "execute", /* VK_EXECUTE 0x2B */ | |
4410 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4411 | "insert", /* VK_INSERT 0x2D */ | |
4412 | "delete", /* VK_DELETE 0x2E */ | |
4413 | "help", /* VK_HELP 0x2F */ | |
4414 | ||
4415 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
4416 | ||
4417 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4418 | ||
4419 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
4420 | ||
4421 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
4422 | ||
4423 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4424 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4425 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4426 | ||
e376f90d RS |
4427 | "lwindow", /* VK_LWIN 0x5B */ |
4428 | "rwindow", /* VK_RWIN 0x5C */ | |
4429 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
4430 | |
4431 | 0, 0, /* 0x5E .. 0x5F */ | |
4432 | ||
4433 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
4434 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4435 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4436 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4437 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4438 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4439 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4440 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4441 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4442 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4443 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4444 | "kp-add", /* VK_ADD 0x6B */ | |
4445 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4446 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4447 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4448 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4449 | "f1", /* VK_F1 0x70 */ | |
4450 | "f2", /* VK_F2 0x71 */ | |
4451 | "f3", /* VK_F3 0x72 */ | |
4452 | "f4", /* VK_F4 0x73 */ | |
4453 | "f5", /* VK_F5 0x74 */ | |
4454 | "f6", /* VK_F6 0x75 */ | |
4455 | "f7", /* VK_F7 0x76 */ | |
4456 | "f8", /* VK_F8 0x77 */ | |
4457 | "f9", /* VK_F9 0x78 */ | |
4458 | "f10", /* VK_F10 0x79 */ | |
4459 | "f11", /* VK_F11 0x7A */ | |
4460 | "f12", /* VK_F12 0x7B */ | |
4461 | "f13", /* VK_F13 0x7C */ | |
4462 | "f14", /* VK_F14 0x7D */ | |
4463 | "f15", /* VK_F15 0x7E */ | |
4464 | "f16", /* VK_F16 0x7F */ | |
4465 | "f17", /* VK_F17 0x80 */ | |
4466 | "f18", /* VK_F18 0x81 */ | |
4467 | "f19", /* VK_F19 0x82 */ | |
4468 | "f20", /* VK_F20 0x83 */ | |
4469 | "f21", /* VK_F21 0x84 */ | |
4470 | "f22", /* VK_F22 0x85 */ | |
4471 | "f23", /* VK_F23 0x86 */ | |
4472 | "f24", /* VK_F24 0x87 */ | |
4473 | ||
4474 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
4475 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
4476 | ||
4477 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
4478 | "scroll", /* VK_SCROLL 0x91 */ | |
4479 | ||
e376f90d RS |
4480 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4481 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4482 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4483 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4484 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4485 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4486 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4487 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4488 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4489 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4490 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4491 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4492 | ||
4493 | 0, 0, /* 0x9E .. 0x9F */ | |
4494 | ||
e98a93eb GV |
4495 | /* |
4496 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4497 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4498 | * No other API or message will distinguish left and right keys this way. |
4499 | */ | |
4500 | /* 0xA0 .. 0xEF */ | |
4501 | ||
4502 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4503 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4504 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4505 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4506 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4507 | ||
4508 | /* 0xF0 .. 0xF5 */ | |
4509 | ||
4510 | 0, 0, 0, 0, 0, 0, | |
4511 | ||
4512 | "attn", /* VK_ATTN 0xF6 */ | |
4513 | "crsel", /* VK_CRSEL 0xF7 */ | |
4514 | "exsel", /* VK_EXSEL 0xF8 */ | |
4515 | "ereof", /* VK_EREOF 0xF9 */ | |
4516 | "play", /* VK_PLAY 0xFA */ | |
4517 | "zoom", /* VK_ZOOM 0xFB */ | |
4518 | "noname", /* VK_NONAME 0xFC */ | |
4519 | "pa1", /* VK_PA1 0xFD */ | |
4520 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4521 | 0 /* 0xFF */ |
e98a93eb GV |
4522 | }; |
4523 | ||
04f215f0 | 4524 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4525 | |
37cd9f30 KH |
4526 | #ifdef XK_kana_A |
4527 | static char *lispy_kana_keys[] = | |
4528 | { | |
4529 | /* X Keysym value */ | |
4530 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4531 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4532 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4533 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4534 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4535 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4536 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4537 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4538 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4539 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
4540 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
4541 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
4542 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4543 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4544 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4545 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4546 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4547 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4548 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4549 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4550 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4551 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4552 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4553 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4554 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4555 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4556 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4557 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4558 | }; | |
4559 | #endif /* XK_kana_A */ | |
4560 | ||
04f215f0 RS |
4561 | #define FUNCTION_KEY_OFFSET 0xff00 |
4562 | ||
284f4730 JB |
4563 | /* You'll notice that this table is arranged to be conveniently |
4564 | indexed by X Windows keysym values. */ | |
4565 | static char *lispy_function_keys[] = | |
4566 | { | |
4567 | /* X Keysym value */ | |
4568 | ||
75045dcb RS |
4569 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4570 | "backspace", "tab", "linefeed", "clear", | |
4571 | 0, "return", 0, 0, | |
4572 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4573 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4574 | 0, 0, 0, 0, |
75045dcb RS |
4575 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4576 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4577 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4578 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4579 | "eisu-toggle", /* 0xff30...3f */ | |
4580 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4581 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4582 | ||
75045dcb RS |
4583 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4584 | "down", "prior", "next", "end", | |
4585 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4586 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4587 | "print", | |
4588 | "execute", | |
4589 | "insert", | |
4590 | 0, /* 0xff64 */ | |
4591 | "undo", | |
4592 | "redo", | |
4593 | "menu", | |
4594 | "find", | |
4595 | "cancel", | |
4596 | "help", | |
4597 | "break", /* 0xff6b */ | |
4598 | ||
75045dcb RS |
4599 | 0, 0, 0, 0, |
4600 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4601 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4602 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4603 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4604 | "kp-tab", /* 0xff89 */ | |
4605 | 0, 0, 0, | |
4606 | "kp-enter", /* 0xff8d */ | |
4607 | 0, 0, 0, | |
4608 | "kp-f1", /* 0xff91 */ | |
4609 | "kp-f2", | |
4610 | "kp-f3", | |
4611 | "kp-f4", | |
872157e7 RS |
4612 | "kp-home", /* 0xff95 */ |
4613 | "kp-left", | |
4614 | "kp-up", | |
4615 | "kp-right", | |
4616 | "kp-down", | |
4617 | "kp-prior", /* kp-page-up */ | |
4618 | "kp-next", /* kp-page-down */ | |
4619 | "kp-end", | |
4620 | "kp-begin", | |
4621 | "kp-insert", | |
4622 | "kp-delete", | |
4623 | 0, /* 0xffa0 */ | |
4624 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4625 | "kp-multiply", /* 0xffaa */ |
4626 | "kp-add", | |
4627 | "kp-separator", | |
4628 | "kp-subtract", | |
4629 | "kp-decimal", | |
4630 | "kp-divide", /* 0xffaf */ | |
4631 | "kp-0", /* 0xffb0 */ | |
4632 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4633 | 0, /* 0xffba */ | |
4634 | 0, 0, | |
4635 | "kp-equal", /* 0xffbd */ | |
4636 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4637 | "f2", |
4638 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4639 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4640 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4641 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4642 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4643 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4644 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4645 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4646 | }; |
284f4730 | 4647 | |
04f215f0 RS |
4648 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4649 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4650 | ||
4651 | static char *iso_lispy_function_keys[] = | |
4652 | { | |
4653 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4654 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4655 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4656 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4657 | "iso-lefttab", /* 0xfe20 */ | |
4658 | "iso-move-line-up", "iso-move-line-down", | |
4659 | "iso-partial-line-up", "iso-partial-line-down", | |
4660 | "iso-partial-space-left", "iso-partial-space-right", | |
4661 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4662 | "iso-release-margin-left", "iso-release-margin-right", | |
4663 | "iso-release-both-margins", | |
4664 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4665 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4666 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4667 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4668 | }; | |
4669 | ||
4670 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4671 | |
8e1e4240 | 4672 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4673 | |
742fbed7 | 4674 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
4675 | /* mouse-wheel events are generated by the wheel on devices such as |
4676 | the MS Intellimouse. The wheel sits in between the left and right | |
4677 | mouse buttons, and is typically used to scroll or zoom the window | |
4678 | underneath the pointer. mouse-wheel events specify the object on | |
4679 | which they operate, and a delta corresponding to the amount and | |
4680 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4681 | generates a mouse-2 event. */ | |
4682 | static char *lispy_mouse_wheel_names[] = | |
4683 | { | |
4684 | "mouse-wheel" | |
4685 | }; | |
a24dc617 | 4686 | |
07de30b9 GV |
4687 | #endif /* WINDOWSNT */ |
4688 | ||
a24dc617 RS |
4689 | /* drag-n-drop events are generated when a set of selected files are |
4690 | dragged from another application and dropped onto an Emacs window. */ | |
4691 | static char *lispy_drag_n_drop_names[] = | |
4692 | { | |
4693 | "drag-n-drop" | |
4694 | }; | |
4695 | ||
3c370943 | 4696 | /* Scroll bar parts. */ |
4bb994d1 | 4697 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4698 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4699 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4700 | |
3c370943 JB |
4701 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4702 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4703 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4704 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4705 | }; |
4706 | ||
5bf68f6e AS |
4707 | /* User signal events. */ |
4708 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4709 | ||
4710 | Lisp_Object *lispy_user_signals[] = | |
4711 | { | |
4712 | &Qusr1_signal, &Qusr2_signal | |
4713 | }; | |
4714 | ||
4bb994d1 | 4715 | |
7b4aedb9 | 4716 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4717 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4718 | |
4719 | The elements have the form | |
4720 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4721 | where REST is the cdr of a position as it would be reported in the event. | |
4722 | ||
4723 | The make_lispy_event function stores positions here to tell the | |
4724 | difference between click and drag events, and to store the starting | |
4725 | location to be included in drag events. */ | |
4726 | ||
4727 | static Lisp_Object button_down_location; | |
88cb0656 | 4728 | |
fbcd35bd JB |
4729 | /* Information about the most recent up-going button event: Which |
4730 | button, what location, and what time. */ | |
4731 | ||
559f9d04 RS |
4732 | static int last_mouse_button; |
4733 | static int last_mouse_x; | |
4734 | static int last_mouse_y; | |
4735 | static unsigned long button_down_time; | |
fbcd35bd | 4736 | |
222d557c GM |
4737 | /* The maximum time between clicks to make a double-click, or Qnil to |
4738 | disable double-click detection, or Qt for no time limit. */ | |
4739 | ||
564dc952 | 4740 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4741 | |
222d557c GM |
4742 | /* Maximum number of pixels the mouse may be moved between clicks |
4743 | to make a double-click. */ | |
4744 | ||
31ade731 | 4745 | EMACS_INT double_click_fuzz; |
222d557c | 4746 | |
fbcd35bd JB |
4747 | /* The number of clicks in this multiple-click. */ |
4748 | ||
4749 | int double_click_count; | |
4750 | ||
284f4730 JB |
4751 | /* Given a struct input_event, build the lisp event which represents |
4752 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4753 | movement buffer, which should have a movement event in it. |
4754 | ||
4755 | Note that events must be passed to this function in the order they | |
4756 | are received; this function stores the location of button presses | |
4757 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4758 | |
4759 | static Lisp_Object | |
4760 | make_lispy_event (event) | |
4761 | struct input_event *event; | |
4762 | { | |
79a7046c RS |
4763 | int i; |
4764 | ||
0220c518 | 4765 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4766 | { |
284f4730 | 4767 | /* A simple keystroke. */ |
3b8f9651 | 4768 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 4769 | { |
9343ab07 | 4770 | Lisp_Object lispy_c; |
e9bf89a0 | 4771 | int c = event->code & 0377; |
5a1c6df8 JB |
4772 | /* Turn ASCII characters into control characters |
4773 | when proper. */ | |
4774 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4775 | c = make_ctrl_char (c); |
4776 | ||
4777 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4778 | just above, and the shift key was taken care of by the X code, | |
4779 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4780 | c |= (event->modifiers |
4781 | & (meta_modifier | alt_modifier | |
4782 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4783 | /* Distinguish Shift-SPC from SPC. */ |
4784 | if ((event->code & 0377) == 040 | |
4785 | && event->modifiers & shift_modifier) | |
4786 | c |= shift_modifier; | |
559f9d04 | 4787 | button_down_time = 0; |
bb9e9bed | 4788 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4789 | return lispy_c; |
86e5706b | 4790 | } |
284f4730 | 4791 | |
3b8f9651 | 4792 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
4793 | { |
4794 | Lisp_Object lispy_c; | |
4795 | ||
4796 | XSETFASTINT (lispy_c, event->code); | |
4797 | return lispy_c; | |
4798 | } | |
4799 | ||
284f4730 JB |
4800 | /* A function key. The symbol may need to have modifier prefixes |
4801 | tacked onto it. */ | |
3b8f9651 | 4802 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 4803 | button_down_time = 0; |
e9bf89a0 RS |
4804 | |
4805 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4806 | if (event->code == lispy_accent_codes[i]) | |
4807 | return modify_event_symbol (i, | |
4808 | event->modifiers, | |
80e4aa30 | 4809 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4810 | lispy_accent_keys, &accent_key_syms, |
4811 | (sizeof (lispy_accent_keys) | |
4812 | / sizeof (lispy_accent_keys[0]))); | |
4813 | ||
37cd9f30 KH |
4814 | #ifdef XK_kana_A |
4815 | if (event->code >= 0x400 && event->code < 0x500) | |
4816 | return modify_event_symbol (event->code - 0x400, | |
4817 | event->modifiers & ~shift_modifier, | |
4818 | Qfunction_key, Qnil, | |
4819 | lispy_kana_keys, &func_key_syms, | |
4820 | (sizeof (lispy_kana_keys) | |
4821 | / sizeof (lispy_kana_keys[0]))); | |
4822 | #endif /* XK_kana_A */ | |
4823 | ||
111c4138 | 4824 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4825 | if (event->code < FUNCTION_KEY_OFFSET |
4826 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4827 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4828 | event->modifiers, | |
4829 | Qfunction_key, Qnil, | |
4830 | iso_lispy_function_keys, &func_key_syms, | |
4831 | (sizeof (iso_lispy_function_keys) | |
4832 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 4833 | #endif |
656280a6 | 4834 | |
4c8bc894 SM |
4835 | /* Handle system-specific or unknown keysyms. */ |
4836 | if (event->code & (1 << 28) | |
4837 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 4838 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
4839 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
4840 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 4841 | { |
4c8bc894 SM |
4842 | /* We need to use an alist rather than a vector as the cache |
4843 | since we can't make a vector long enuf. */ | |
4844 | if (NILP (current_kboard->system_key_syms)) | |
4845 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
4846 | return modify_event_symbol (event->code, | |
4847 | event->modifiers, | |
4848 | Qfunction_key, | |
4849 | current_kboard->Vsystem_key_alist, | |
4850 | 0, ¤t_kboard->system_key_syms, | |
4851 | (unsigned) -1); | |
656280a6 | 4852 | } |
656280a6 GM |
4853 | |
4854 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
4855 | event->modifiers, | |
4856 | Qfunction_key, Qnil, | |
4857 | lispy_function_keys, &func_key_syms, | |
4858 | (sizeof (lispy_function_keys) | |
4859 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4860 | |
514354e9 | 4861 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4862 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4863 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 4864 | case MOUSE_CLICK_EVENT: |
7ee32cda | 4865 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 4866 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 4867 | #endif |
284f4730 | 4868 | { |
e9bf89a0 | 4869 | int button = event->code; |
559f9d04 | 4870 | int is_double; |
7b4aedb9 | 4871 | Lisp_Object position; |
dbc4e1c1 JB |
4872 | Lisp_Object *start_pos_ptr; |
4873 | Lisp_Object start_pos; | |
c5cf2109 | 4874 | Lisp_Object window; |
284f4730 | 4875 | |
8c907a56 GM |
4876 | position = Qnil; |
4877 | ||
7b4aedb9 | 4878 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 4879 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 4880 | { |
7b4aedb9 | 4881 | int part; |
c5cf2109 | 4882 | struct frame *f = XFRAME (event->frame_or_window); |
7b4aedb9 | 4883 | Lisp_Object posn; |
7ee32cda | 4884 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4885 | int row, column; |
4886 | ||
5da3133a RS |
4887 | /* Ignore mouse events that were made on frame that |
4888 | have been deleted. */ | |
4889 | if (! FRAME_LIVE_P (f)) | |
4890 | return Qnil; | |
4891 | ||
7ee32cda GM |
4892 | /* EVENT->x and EVENT->y are frame-relative pixel |
4893 | coordinates at this place. Under old redisplay, COLUMN | |
4894 | and ROW are set to frame relative glyph coordinates | |
4895 | which are then used to determine whether this click is | |
4896 | in a menu (non-toolkit version). */ | |
4897 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4898 | &column, &row, NULL, 1); | |
7b4aedb9 | 4899 | |
eef045bf RS |
4900 | #ifndef USE_X_TOOLKIT |
4901 | /* In the non-toolkit version, clicks on the menu bar | |
4902 | are ordinary button events in the event buffer. | |
4903 | Distinguish them, and invoke the menu. | |
4904 | ||
4905 | (In the toolkit version, the toolkit handles the menu bar | |
4906 | and Emacs doesn't know about it until after the user | |
4907 | makes a selection.) */ | |
2ee250ec RS |
4908 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4909 | && (event->modifiers & down_modifier)) | |
bb936752 | 4910 | { |
b7c49376 | 4911 | Lisp_Object items, item; |
0a0e8fe6 RS |
4912 | int hpos; |
4913 | int i; | |
4914 | ||
2ee250ec | 4915 | #if 0 |
0a0e8fe6 RS |
4916 | /* Activate the menu bar on the down event. If the |
4917 | up event comes in before the menu code can deal with it, | |
4918 | just ignore it. */ | |
4919 | if (! (event->modifiers & down_modifier)) | |
4920 | return Qnil; | |
2ee250ec | 4921 | #endif |
0aafc975 | 4922 | |
7ee32cda | 4923 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4924 | item = Qnil; |
5ec75a55 | 4925 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4926 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4927 | { |
4928 | Lisp_Object pos, string; | |
129004d3 GM |
4929 | string = AREF (items, i + 1); |
4930 | pos = AREF (items, i + 3); | |
b7c49376 RS |
4931 | if (NILP (string)) |
4932 | break; | |
9e20143a | 4933 | if (column >= XINT (pos) |
d5db4077 | 4934 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 4935 | { |
129004d3 | 4936 | item = AREF (items, i); |
b7c49376 RS |
4937 | break; |
4938 | } | |
5ec75a55 | 4939 | } |
9e20143a | 4940 | |
7ee32cda GM |
4941 | /* ELisp manual 2.4b says (x y) are window relative but |
4942 | code says they are frame-relative. */ | |
5ec75a55 RS |
4943 | position |
4944 | = Fcons (event->frame_or_window, | |
4945 | Fcons (Qmenu_bar, | |
4946 | Fcons (Fcons (event->x, event->y), | |
4947 | Fcons (make_number (event->timestamp), | |
4948 | Qnil)))); | |
4949 | ||
b7c49376 | 4950 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4951 | } |
eef045bf | 4952 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4953 | |
7ee32cda GM |
4954 | /* Set `window' to the window under frame pixel coordinates |
4955 | event->x/event->y. */ | |
4956 | window = window_from_coordinates (f, XINT (event->x), | |
4957 | XINT (event->y), &part, 0); | |
0aafc975 | 4958 | |
8c18cbfb | 4959 | if (!WINDOWP (window)) |
78ced549 RS |
4960 | { |
4961 | window = event->frame_or_window; | |
4962 | posn = Qnil; | |
4963 | } | |
284f4730 | 4964 | else |
7b4aedb9 | 4965 | { |
7ee32cda GM |
4966 | /* It's a click in window window at frame coordinates |
4967 | event->x/ event->y. */ | |
4968 | struct window *w = XWINDOW (window); | |
4969 | ||
4970 | /* Get window relative coordinates. Original code | |
4971 | `rounded' this to glyph boundaries. */ | |
4972 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4973 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4974 | ||
4975 | /* Set event coordinates to window-relative coordinates | |
4976 | for constructing the Lisp event below. */ | |
4977 | XSETINT (event->x, wx); | |
4978 | XSETINT (event->y, wy); | |
4979 | ||
4980 | if (part == 1 || part == 3) | |
4981 | { | |
902ae620 | 4982 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
4983 | the mouse that may have a `local-map' property. */ |
4984 | Lisp_Object string; | |
4985 | int charpos; | |
4986 | ||
045dee35 | 4987 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4988 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4989 | if (STRINGP (string)) | |
4990 | string_info = Fcons (string, make_number (charpos)); | |
4991 | } | |
7b4aedb9 JB |
4992 | else if (part == 2) |
4993 | posn = Qvertical_line; | |
7d60ad8a GM |
4994 | else if (part == 6 || part == 7) |
4995 | { | |
4996 | int charpos; | |
4997 | Lisp_Object object = marginal_area_string (w, wx, wy, part, | |
4998 | &charpos); | |
4999 | posn = (part == 6) ? Qleft_margin : Qright_margin; | |
5000 | if (STRINGP (object)) | |
5001 | string_info = Fcons (object, make_number (charpos)); | |
5002 | } | |
7b4aedb9 | 5003 | else |
a955ffa2 GM |
5004 | { |
5005 | Lisp_Object object; | |
5006 | struct display_pos p; | |
5007 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5008 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
5009 | if (STRINGP (object)) |
5010 | string_info | |
5011 | = Fcons (object, | |
5012 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 5013 | } |
7b4aedb9 JB |
5014 | } |
5015 | ||
5ec75a55 RS |
5016 | position |
5017 | = Fcons (window, | |
5018 | Fcons (posn, | |
5019 | Fcons (Fcons (event->x, event->y), | |
5020 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
5021 | (NILP (string_info) |
5022 | ? Qnil | |
5023 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 5024 | } |
7ee32cda | 5025 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5026 | else |
88cb0656 | 5027 | { |
7ee32cda | 5028 | /* It's a scrollbar click. */ |
9e20143a RS |
5029 | Lisp_Object portion_whole; |
5030 | Lisp_Object part; | |
5031 | ||
5032 | window = event->frame_or_window; | |
5033 | portion_whole = Fcons (event->x, event->y); | |
5034 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5035 | |
db08707d RS |
5036 | position |
5037 | = Fcons (window, | |
5038 | Fcons (Qvertical_scroll_bar, | |
5039 | Fcons (portion_whole, | |
5040 | Fcons (make_number (event->timestamp), | |
5041 | Fcons (part, Qnil))))); | |
88cb0656 | 5042 | } |
7ee32cda | 5043 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5044 | |
129004d3 | 5045 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5046 | { |
5047 | button_down_location = larger_vector (button_down_location, | |
5048 | button + 1, Qnil); | |
5049 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5050 | } | |
5051 | ||
129004d3 | 5052 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5053 | start_pos = *start_pos_ptr; |
5054 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5055 | |
c5cf2109 GM |
5056 | { |
5057 | /* On window-system frames, use the value of | |
5058 | double-click-fuzz as is. On other frames, interpret it | |
5059 | as a multiple of 1/8 characters. */ | |
5060 | struct frame *f; | |
5061 | int fuzz; | |
5062 | ||
5063 | if (WINDOWP (event->frame_or_window)) | |
5064 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5065 | else if (FRAMEP (event->frame_or_window)) | |
5066 | f = XFRAME (event->frame_or_window); | |
5067 | else | |
5068 | abort (); | |
5069 | ||
5070 | if (FRAME_WINDOW_P (f)) | |
5071 | fuzz = double_click_fuzz; | |
5072 | else | |
5073 | fuzz = double_click_fuzz / 8; | |
5074 | ||
5075 | is_double = (button == last_mouse_button | |
5076 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5077 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5078 | && button_down_time != 0 | |
5079 | && (EQ (Vdouble_click_time, Qt) | |
5080 | || (INTEGERP (Vdouble_click_time) | |
5081 | && ((int)(event->timestamp - button_down_time) | |
5082 | < XINT (Vdouble_click_time))))); | |
5083 | } | |
222d557c | 5084 | |
559f9d04 RS |
5085 | last_mouse_button = button; |
5086 | last_mouse_x = XINT (event->x); | |
5087 | last_mouse_y = XINT (event->y); | |
5088 | ||
7b4aedb9 JB |
5089 | /* If this is a button press, squirrel away the location, so |
5090 | we can decide later whether it was a click or a drag. */ | |
5091 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5092 | { |
5093 | if (is_double) | |
5094 | { | |
5095 | double_click_count++; | |
5096 | event->modifiers |= ((double_click_count > 2) | |
5097 | ? triple_modifier | |
5098 | : double_modifier); | |
5099 | } | |
5100 | else | |
5101 | double_click_count = 1; | |
5102 | button_down_time = event->timestamp; | |
5103 | *start_pos_ptr = Fcopy_alist (position); | |
5104 | } | |
7b4aedb9 | 5105 | |
88cb0656 | 5106 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5107 | see if this was a click or a drag. */ |
88cb0656 JB |
5108 | else if (event->modifiers & up_modifier) |
5109 | { | |
129004d3 GM |
5110 | /* If we did not see a down before this up, ignore the up. |
5111 | Probably this happened because the down event chose a | |
5112 | menu item. It would be an annoyance to treat the | |
5113 | release of the button that chose the menu item as a | |
5114 | separate event. */ | |
48e416d4 | 5115 | |
8c18cbfb | 5116 | if (!CONSP (start_pos)) |
48e416d4 RS |
5117 | return Qnil; |
5118 | ||
88cb0656 | 5119 | event->modifiers &= ~up_modifier; |
48e416d4 | 5120 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5121 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5122 | event->modifiers |= click_modifier; |
5123 | else | |
48e416d4 | 5124 | #endif |
dbc4e1c1 | 5125 | { |
9b8eb840 | 5126 | Lisp_Object down; |
d31053f9 | 5127 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5128 | |
d31053f9 RS |
5129 | /* The third element of every position |
5130 | should be the (x,y) pair. */ | |
5131 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5132 | if (CONSP (down) |
5133 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5134 | { |
7a6a97d7 SM |
5135 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5136 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5137 | } |
5138 | ||
5139 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5140 | && ydiff < double_click_fuzz | |
5141 | && ydiff > - double_click_fuzz) | |
5142 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5143 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5144 | else |
5145 | { | |
d31053f9 RS |
5146 | button_down_time = 0; |
5147 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5148 | } |
129004d3 | 5149 | |
bc536d84 RS |
5150 | /* Don't check is_double; treat this as multiple |
5151 | if the down-event was multiple. */ | |
5152 | if (double_click_count > 1) | |
5153 | event->modifiers |= ((double_click_count > 2) | |
5154 | ? triple_modifier | |
5155 | : double_modifier); | |
dbc4e1c1 | 5156 | } |
88cb0656 JB |
5157 | } |
5158 | else | |
5159 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5160 | the up_modifier set. */ |
88cb0656 JB |
5161 | abort (); |
5162 | ||
88cb0656 | 5163 | { |
7b4aedb9 | 5164 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5165 | Lisp_Object head; |
5166 | ||
5167 | head = modify_event_symbol (button, | |
5168 | event->modifiers, | |
8e1e4240 GM |
5169 | Qmouse_click, Vlispy_mouse_stem, |
5170 | NULL, | |
5171 | &mouse_syms, | |
5172 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5173 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5174 | return Fcons (head, |
5175 | Fcons (start_pos, | |
5176 | Fcons (position, | |
5177 | Qnil))); | |
fbcd35bd JB |
5178 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5179 | return Fcons (head, | |
5180 | Fcons (position, | |
5181 | Fcons (make_number (double_click_count), | |
5182 | Qnil))); | |
88cb0656 JB |
5183 | else |
5184 | return Fcons (head, | |
7b4aedb9 | 5185 | Fcons (position, |
88cb0656 JB |
5186 | Qnil)); |
5187 | } | |
284f4730 | 5188 | } |
db08707d | 5189 | |
05be3964 | 5190 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5191 | |
5192 | /* We don't have down and up events if using toolkit scroll bars, | |
5193 | so make this always a click event. Store in the `part' of | |
5194 | the Lisp event a symbol which maps to the following actions: | |
5195 | ||
5196 | `above_handle' page up | |
5197 | `below_handle' page down | |
5198 | `up' line up | |
5199 | `down' line down | |
5200 | `top' top of buffer | |
5201 | `bottom' bottom of buffer | |
5202 | `handle' thumb has been dragged. | |
5203 | `end-scroll' end of interaction with scroll bar | |
5204 | ||
5205 | The incoming input_event contains in its `part' member an | |
5206 | index of type `enum scroll_bar_part' which we can use as an | |
5207 | index in scroll_bar_parts to get the appropriate symbol. */ | |
5208 | ||
3b8f9651 | 5209 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5210 | { |
5211 | Lisp_Object position, head, window, portion_whole, part; | |
5212 | ||
5213 | window = event->frame_or_window; | |
5214 | portion_whole = Fcons (event->x, event->y); | |
5215 | part = *scroll_bar_parts[(int) event->part]; | |
5216 | ||
5217 | position | |
5218 | = Fcons (window, | |
5219 | Fcons (Qvertical_scroll_bar, | |
5220 | Fcons (portion_whole, | |
5221 | Fcons (make_number (event->timestamp), | |
5222 | Fcons (part, Qnil))))); | |
5223 | ||
5224 | /* Always treat scroll bar events as clicks. */ | |
5225 | event->modifiers |= click_modifier; | |
05be3964 | 5226 | event->modifiers &= ~up_modifier; |
7ee32cda GM |
5227 | |
5228 | /* Get the symbol we should use for the mouse click. */ | |
5229 | head = modify_event_symbol (event->code, | |
5230 | event->modifiers, | |
8e1e4240 GM |
5231 | Qmouse_click, |
5232 | Vlispy_mouse_stem, | |
5233 | NULL, &mouse_syms, | |
5234 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5235 | return Fcons (head, Fcons (position, Qnil)); |
5236 | } | |
5237 | ||
5238 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
5239 | ||
db08707d | 5240 | #ifdef WINDOWSNT |
3b8f9651 | 5241 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5242 | { |
5243 | int button = event->code; | |
5244 | int is_double; | |
5245 | Lisp_Object position; | |
5246 | Lisp_Object *start_pos_ptr; | |
5247 | Lisp_Object start_pos; | |
5248 | ||
db08707d RS |
5249 | { |
5250 | Lisp_Object window; | |
5251 | Lisp_Object portion_whole; | |
5252 | Lisp_Object part; | |
5253 | ||
5254 | window = event->frame_or_window; | |
5255 | portion_whole = Fcons (event->x, event->y); | |
5256 | part = *scroll_bar_parts[(int) event->part]; | |
5257 | ||
e8886a1d RS |
5258 | position |
5259 | = Fcons (window, | |
5260 | Fcons (Qvertical_scroll_bar, | |
5261 | Fcons (portion_whole, | |
5262 | Fcons (make_number (event->timestamp), | |
5263 | Fcons (part, Qnil))))); | |
db08707d RS |
5264 | } |
5265 | ||
fbd6baed | 5266 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5267 | event->modifiers |= click_modifier; |
5268 | ||
5269 | { | |
5270 | /* Get the symbol we should use for the mouse click. */ | |
5271 | Lisp_Object head; | |
5272 | ||
5273 | head = modify_event_symbol (button, | |
5274 | event->modifiers, | |
8e1e4240 GM |
5275 | Qmouse_click, |
5276 | Vlispy_mouse_stem, | |
5277 | NULL, &mouse_syms, | |
5278 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5279 | return Fcons (head, |
5280 | Fcons (position, | |
5281 | Qnil)); | |
5282 | } | |
5283 | } | |
742fbed7 AC |
5284 | #endif /* WINDOWS_NT */ |
5285 | #if defined(WINDOWS_NT) || defined(MAC_OSX) | |
3b8f9651 | 5286 | case MOUSE_WHEEL_EVENT: |
07de30b9 GV |
5287 | { |
5288 | int part; | |
5289 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5290 | Lisp_Object window; | |
5291 | Lisp_Object posn; | |
5292 | Lisp_Object head, position; | |
5293 | int row, column; | |
5294 | ||
5295 | /* Ignore mouse events that were made on frame that | |
5296 | have been deleted. */ | |
5297 | if (! FRAME_LIVE_P (f)) | |
5298 | return Qnil; | |
5299 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5300 | &column, &row, NULL, 1); | |
afabdbe5 JR |
5301 | window = window_from_coordinates (f, XINT (event->x), |
5302 | XINT (event->y), &part, 0); | |
07de30b9 GV |
5303 | |
5304 | if (!WINDOWP (window)) | |
5305 | { | |
5306 | window = event->frame_or_window; | |
5307 | posn = Qnil; | |
5308 | } | |
5309 | else | |
5310 | { | |
5311 | int pixcolumn, pixrow; | |
5312 | column -= XINT (XWINDOW (window)->left); | |
5313 | row -= XINT (XWINDOW (window)->top); | |
e1bfeab2 JR |
5314 | glyph_to_pixel_coords (XWINDOW(window), column, row, |
5315 | &pixcolumn, &pixrow); | |
07de30b9 GV |
5316 | XSETINT (event->x, pixcolumn); |
5317 | XSETINT (event->y, pixrow); | |
5318 | ||
5319 | if (part == 1) | |
5320 | posn = Qmode_line; | |
5321 | else if (part == 2) | |
5322 | posn = Qvertical_line; | |
7ee32cda | 5323 | else if (part == 3) |
045dee35 | 5324 | posn = Qheader_line; |
07de30b9 | 5325 | else |
a955ffa2 GM |
5326 | { |
5327 | Lisp_Object object; | |
5328 | struct display_pos p; | |
5329 | buffer_posn_from_coords (XWINDOW (window), &column, &row, | |
5330 | &object, &p); | |
5331 | posn = make_number (CHARPOS (p.pos)); | |
5332 | } | |
07de30b9 | 5333 | } |
db08707d | 5334 | |
07de30b9 GV |
5335 | { |
5336 | Lisp_Object head, position; | |
5337 | ||
5338 | position | |
5339 | = Fcons (window, | |
5340 | Fcons (posn, | |
5341 | Fcons (Fcons (event->x, event->y), | |
5342 | Fcons (make_number (event->timestamp), | |
5343 | Qnil)))); | |
5344 | ||
5345 | head = modify_event_symbol (0, event->modifiers, | |
5346 | Qmouse_wheel, Qnil, | |
5347 | lispy_mouse_wheel_names, | |
5348 | &mouse_wheel_syms, 1); | |
5349 | return Fcons (head, | |
5350 | Fcons (position, | |
406b073d JR |
5351 | /* Insert 1 here so event-click-count works. */ |
5352 | Fcons (make_number (1), | |
5353 | Fcons (make_number (event->code), | |
5354 | Qnil)))); | |
07de30b9 GV |
5355 | } |
5356 | } | |
742fbed7 | 5357 | #endif /* WINDOWSNT || MAC_OSX */ |
a24dc617 | 5358 | |
3b8f9651 | 5359 | case DRAG_N_DROP_EVENT: |
a24dc617 RS |
5360 | { |
5361 | int part; | |
5362 | FRAME_PTR f; | |
5363 | Lisp_Object window; | |
5364 | Lisp_Object posn; | |
a24dc617 | 5365 | Lisp_Object files; |
a24dc617 RS |
5366 | |
5367 | /* The frame_or_window field should be a cons of the frame in | |
5368 | which the event occurred and a list of the filenames | |
5369 | dropped. */ | |
5370 | if (! CONSP (event->frame_or_window)) | |
5371 | abort (); | |
5372 | ||
7539e11f KR |
5373 | f = XFRAME (XCAR (event->frame_or_window)); |
5374 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5375 | |
5376 | /* Ignore mouse events that were made on frames that | |
5377 | have been deleted. */ | |
5378 | if (! FRAME_LIVE_P (f)) | |
5379 | return Qnil; | |
afabdbe5 JR |
5380 | |
5381 | window = window_from_coordinates (f, XINT (event->x), | |
5382 | XINT (event->y), &part, 0); | |
a24dc617 RS |
5383 | |
5384 | if (!WINDOWP (window)) | |
5385 | { | |
7539e11f | 5386 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5387 | posn = Qnil; |
5388 | } | |
5389 | else | |
5390 | { | |
7ee32cda GM |
5391 | /* It's an event in window `window' at frame coordinates |
5392 | event->x/ event->y. */ | |
5393 | struct window *w = XWINDOW (window); | |
5394 | ||
5395 | /* Get window relative coordinates. */ | |
5396 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
5397 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
5398 | ||
5399 | /* Set event coordinates to window-relative coordinates | |
5400 | for constructing the Lisp event below. */ | |
5401 | XSETINT (event->x, wx); | |
5402 | XSETINT (event->y, wy); | |
a24dc617 RS |
5403 | |
5404 | if (part == 1) | |
5405 | posn = Qmode_line; | |
5406 | else if (part == 2) | |
5407 | posn = Qvertical_line; | |
7ee32cda | 5408 | else if (part == 3) |
045dee35 | 5409 | posn = Qheader_line; |
a24dc617 | 5410 | else |
a955ffa2 GM |
5411 | { |
5412 | Lisp_Object object; | |
5413 | struct display_pos p; | |
5414 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5415 | posn = make_number (CHARPOS (p.pos)); | |
5416 | } | |
a24dc617 RS |
5417 | } |
5418 | ||
5419 | { | |
5420 | Lisp_Object head, position; | |
5421 | ||
5422 | position | |
5423 | = Fcons (window, | |
5424 | Fcons (posn, | |
5425 | Fcons (Fcons (event->x, event->y), | |
5426 | Fcons (make_number (event->timestamp), | |
5427 | Qnil)))); | |
5428 | ||
5429 | head = modify_event_symbol (0, event->modifiers, | |
5430 | Qdrag_n_drop, Qnil, | |
5431 | lispy_drag_n_drop_names, | |
5432 | &drag_n_drop_syms, 1); | |
5433 | return Fcons (head, | |
5434 | Fcons (position, | |
5435 | Fcons (files, | |
5436 | Qnil))); | |
5437 | } | |
5438 | } | |
514354e9 | 5439 | #endif /* HAVE_MOUSE */ |
284f4730 | 5440 | |
e0f712ba | 5441 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) |
da8f7368 GM |
5442 | case MENU_BAR_EVENT: |
5443 | if (EQ (event->arg, event->frame_or_window)) | |
5444 | /* This is the prefix key. We translate this to | |
5445 | `(menu_bar)' because the code in keyboard.c for menu | |
5446 | events, which we use, relies on this. */ | |
5447 | return Fcons (Qmenu_bar, Qnil); | |
5448 | return event->arg; | |
2470a66f KH |
5449 | #endif |
5450 | ||
9ea173e8 | 5451 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5452 | if (EQ (event->arg, event->frame_or_window)) |
5453 | /* This is the prefix key. We translate this to | |
27fd22dc | 5454 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5455 | events, which we use, relies on this. */ |
5456 | return Fcons (Qtool_bar, Qnil); | |
5457 | else if (SYMBOLP (event->arg)) | |
5458 | return apply_modifiers (event->modifiers, event->arg); | |
5459 | return event->arg; | |
5460 | ||
5461 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5462 | /* A user signal. */ |
5463 | return *lispy_user_signals[event->code]; | |
5464 | ||
3b8f9651 | 5465 | case SAVE_SESSION_EVENT: |
4ebc27a5 JD |
5466 | return Qsave_session; |
5467 | ||
284f4730 JB |
5468 | /* The 'kind' field of the event is something we don't recognize. */ |
5469 | default: | |
48e416d4 | 5470 | abort (); |
284f4730 JB |
5471 | } |
5472 | } | |
5473 | ||
514354e9 | 5474 | #ifdef HAVE_MOUSE |
6cbff1cb | 5475 | |
284f4730 | 5476 | static Lisp_Object |
7b4aedb9 | 5477 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5478 | FRAME_PTR frame; |
7b4aedb9 | 5479 | Lisp_Object bar_window; |
3c370943 | 5480 | enum scroll_bar_part part; |
284f4730 | 5481 | Lisp_Object x, y; |
e5d77022 | 5482 | unsigned long time; |
284f4730 | 5483 | { |
3c370943 | 5484 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5485 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5486 | { |
9b8eb840 | 5487 | Lisp_Object part_sym; |
4bb994d1 | 5488 | |
9b8eb840 | 5489 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5490 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5491 | (Fcons (Fcons (bar_window, |
3c370943 | 5492 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5493 | Fcons (Fcons (x, y), |
5494 | Fcons (make_number (time), | |
cb5df6ae | 5495 | Fcons (part_sym, |
4bb994d1 JB |
5496 | Qnil))))), |
5497 | Qnil))); | |
5498 | } | |
5499 | ||
5500 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5501 | else |
5502 | { | |
4bb994d1 | 5503 | int area; |
9e20143a | 5504 | Lisp_Object window; |
4bb994d1 | 5505 | Lisp_Object posn; |
9e20143a | 5506 | |
9e20143a | 5507 | if (frame) |
7ee32cda GM |
5508 | /* It's in a frame; which window on that frame? */ |
5509 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
5510 | else |
5511 | window = Qnil; | |
4bb994d1 | 5512 | |
8c18cbfb | 5513 | if (WINDOWP (window)) |
4bb994d1 | 5514 | { |
7ee32cda | 5515 | struct window *w = XWINDOW (window); |
7ee32cda | 5516 | int wx, wy; |
7ee32cda GM |
5517 | |
5518 | /* Get window relative coordinates. */ | |
5519 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
5520 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
5521 | XSETINT (x, wx); | |
5522 | XSETINT (y, wy); | |
5523 | ||
4bb994d1 JB |
5524 | if (area == 1) |
5525 | posn = Qmode_line; | |
5526 | else if (area == 2) | |
5527 | posn = Qvertical_line; | |
7ee32cda | 5528 | else if (area == 3) |
045dee35 | 5529 | posn = Qheader_line; |
4bb994d1 | 5530 | else |
a955ffa2 GM |
5531 | { |
5532 | Lisp_Object object; | |
5533 | struct display_pos p; | |
5534 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5535 | posn = make_number (CHARPOS (p.pos)); | |
5536 | } | |
4bb994d1 | 5537 | } |
e9bf89a0 RS |
5538 | else if (frame != 0) |
5539 | { | |
18cd2eeb | 5540 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5541 | posn = Qnil; |
5542 | } | |
284f4730 | 5543 | else |
4bb994d1 JB |
5544 | { |
5545 | window = Qnil; | |
5546 | posn = Qnil; | |
bb9e9bed KH |
5547 | XSETFASTINT (x, 0); |
5548 | XSETFASTINT (y, 0); | |
4bb994d1 | 5549 | } |
284f4730 | 5550 | |
4bb994d1 JB |
5551 | return Fcons (Qmouse_movement, |
5552 | Fcons (Fcons (window, | |
5553 | Fcons (posn, | |
5554 | Fcons (Fcons (x, y), | |
5555 | Fcons (make_number (time), | |
5556 | Qnil)))), | |
5557 | Qnil)); | |
5558 | } | |
284f4730 JB |
5559 | } |
5560 | ||
514354e9 | 5561 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5562 | |
cd21b839 JB |
5563 | /* Construct a switch frame event. */ |
5564 | static Lisp_Object | |
5565 | make_lispy_switch_frame (frame) | |
5566 | Lisp_Object frame; | |
5567 | { | |
5568 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5569 | } | |
0a7f1fc0 JB |
5570 | \f |
5571 | /* Manipulating modifiers. */ | |
284f4730 | 5572 | |
0a7f1fc0 | 5573 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5574 | |
0a7f1fc0 JB |
5575 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5576 | SYMBOL's name of the end of the modifiers; the string from this | |
5577 | position is the unmodified symbol name. | |
284f4730 | 5578 | |
0a7f1fc0 | 5579 | This doesn't use any caches. */ |
6da3dd3a | 5580 | |
0a7f1fc0 JB |
5581 | static int |
5582 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5583 | Lisp_Object symbol; |
0a7f1fc0 | 5584 | int *modifier_end; |
284f4730 | 5585 | { |
1b049b51 | 5586 | Lisp_Object name; |
284f4730 JB |
5587 | int i; |
5588 | int modifiers; | |
284f4730 | 5589 | |
b7826503 | 5590 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5591 | |
284f4730 | 5592 | modifiers = 0; |
1b049b51 | 5593 | name = SYMBOL_NAME (symbol); |
284f4730 | 5594 | |
1b049b51 | 5595 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5596 | { |
5597 | int this_mod_end = 0; | |
5598 | int this_mod = 0; | |
284f4730 | 5599 | |
6da3dd3a RS |
5600 | /* See if the name continues with a modifier word. |
5601 | Check that the word appears, but don't check what follows it. | |
5602 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5603 | |
1b049b51 | 5604 | switch (SREF (name, i)) |
6da3dd3a RS |
5605 | { |
5606 | #define SINGLE_LETTER_MOD(BIT) \ | |
5607 | (this_mod_end = i + 1, this_mod = BIT) | |
5608 | ||
6da3dd3a RS |
5609 | case 'A': |
5610 | SINGLE_LETTER_MOD (alt_modifier); | |
5611 | break; | |
284f4730 | 5612 | |
6da3dd3a RS |
5613 | case 'C': |
5614 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5615 | break; | |
284f4730 | 5616 | |
6da3dd3a RS |
5617 | case 'H': |
5618 | SINGLE_LETTER_MOD (hyper_modifier); | |
5619 | break; | |
5620 | ||
6da3dd3a RS |
5621 | case 'M': |
5622 | SINGLE_LETTER_MOD (meta_modifier); | |
5623 | break; | |
5624 | ||
6da3dd3a RS |
5625 | case 'S': |
5626 | SINGLE_LETTER_MOD (shift_modifier); | |
5627 | break; | |
5628 | ||
5629 | case 's': | |
6da3dd3a RS |
5630 | SINGLE_LETTER_MOD (super_modifier); |
5631 | break; | |
5632 | ||
0a7f1fc0 | 5633 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
5634 | } |
5635 | ||
5636 | /* If we found no modifier, stop looking for them. */ | |
5637 | if (this_mod_end == 0) | |
5638 | break; | |
5639 | ||
5640 | /* Check there is a dash after the modifier, so that it | |
5641 | really is a modifier. */ | |
1b049b51 KR |
5642 | if (this_mod_end >= SBYTES (name) |
5643 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
5644 | break; |
5645 | ||
5646 | /* This modifier is real; look for another. */ | |
5647 | modifiers |= this_mod; | |
5648 | i = this_mod_end + 1; | |
5649 | } | |
284f4730 | 5650 | |
0a7f1fc0 | 5651 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5652 | if (! (modifiers & (down_modifier | drag_modifier |
5653 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
5654 | && i + 7 == SBYTES (name) |
5655 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
5656 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
5657 | modifiers |= click_modifier; |
5658 | ||
5659 | if (modifier_end) | |
5660 | *modifier_end = i; | |
5661 | ||
5662 | return modifiers; | |
5663 | } | |
5664 | ||
0a7f1fc0 JB |
5665 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5666 | prepended to the string BASE[0..BASE_LEN-1]. | |
5667 | This doesn't use any caches. */ | |
5668 | static Lisp_Object | |
301738ed | 5669 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5670 | int modifiers; |
5671 | char *base; | |
301738ed | 5672 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5673 | { |
5674 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5675 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5676 | reference to it. */ | |
301738ed RS |
5677 | char *new_mods |
5678 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5679 | int mod_len; |
284f4730 | 5680 | |
284f4730 | 5681 | { |
0a7f1fc0 JB |
5682 | char *p = new_mods; |
5683 | ||
5684 | /* Only the event queue may use the `up' modifier; it should always | |
5685 | be turned into a click or drag event before presented to lisp code. */ | |
5686 | if (modifiers & up_modifier) | |
5687 | abort (); | |
5688 | ||
5689 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5690 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5691 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5692 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5693 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5694 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5695 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5696 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5697 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5698 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5699 | /* The click modifier is denoted by the absence of other modifiers. */ |
5700 | ||
5701 | *p = '\0'; | |
5702 | ||
5703 | mod_len = p - new_mods; | |
5704 | } | |
284f4730 | 5705 | |
0a7f1fc0 | 5706 | { |
9b8eb840 | 5707 | Lisp_Object new_name; |
df0f2ba1 | 5708 | |
301738ed RS |
5709 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5710 | mod_len + base_len_byte); | |
d5db4077 KR |
5711 | bcopy (new_mods, SDATA (new_name), mod_len); |
5712 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
5713 | |
5714 | return Fintern (new_name, Qnil); | |
5715 | } | |
5716 | } | |
5717 | ||
5718 | ||
0a7f1fc0 JB |
5719 | static char *modifier_names[] = |
5720 | { | |
fbcd35bd | 5721 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5722 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5723 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5724 | }; |
80645119 | 5725 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5726 | |
5727 | static Lisp_Object modifier_symbols; | |
5728 | ||
5729 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5730 | static Lisp_Object | |
5731 | lispy_modifier_list (modifiers) | |
5732 | int modifiers; | |
5733 | { | |
5734 | Lisp_Object modifier_list; | |
5735 | int i; | |
5736 | ||
5737 | modifier_list = Qnil; | |
80645119 | 5738 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5739 | if (modifiers & (1<<i)) |
80645119 JB |
5740 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5741 | modifier_list); | |
0a7f1fc0 JB |
5742 | |
5743 | return modifier_list; | |
5744 | } | |
5745 | ||
5746 | ||
5747 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5748 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5749 | MASK is the set of modifiers present in SYMBOL's name. | |
5750 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5751 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5752 | Qevent_symbol_elements property. */ | |
3d31316f | 5753 | |
1161d367 | 5754 | Lisp_Object |
0a7f1fc0 JB |
5755 | parse_modifiers (symbol) |
5756 | Lisp_Object symbol; | |
5757 | { | |
9b8eb840 | 5758 | Lisp_Object elements; |
0a7f1fc0 | 5759 | |
9b8eb840 | 5760 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5761 | if (CONSP (elements)) |
5762 | return elements; | |
5763 | else | |
5764 | { | |
5765 | int end; | |
ec0faad2 | 5766 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5767 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5768 | Lisp_Object mask; |
5769 | ||
d5db4077 KR |
5770 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
5771 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
5772 | Qnil); |
5773 | ||
c4aeb9d8 | 5774 | if (modifiers & ~VALMASK) |
734fef94 | 5775 | abort (); |
bb9e9bed | 5776 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5777 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5778 | ||
5779 | /* Cache the parsing results on SYMBOL. */ | |
5780 | Fput (symbol, Qevent_symbol_element_mask, | |
5781 | elements); | |
5782 | Fput (symbol, Qevent_symbol_elements, | |
5783 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5784 | ||
5785 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5786 | it would be nice to put that in unmodified's cache. | |
5787 | But we can't, since we're not sure that parse_modifiers is | |
5788 | canonical. */ | |
5789 | ||
5790 | return elements; | |
5791 | } | |
5792 | } | |
5793 | ||
5794 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5795 | BASE must be unmodified. | |
5796 | ||
5797 | This is like apply_modifiers_uncached, but uses BASE's | |
5798 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5799 | Qevent_symbol_elements properties, since it has that info anyway. |
5800 | ||
5801 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5802 | the modified symbol. */ | |
0a7f1fc0 JB |
5803 | static Lisp_Object |
5804 | apply_modifiers (modifiers, base) | |
5805 | int modifiers; | |
5806 | Lisp_Object base; | |
5807 | { | |
7b4aedb9 | 5808 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5809 | |
80645119 | 5810 | /* Mask out upper bits. We don't know where this value's been. */ |
c4aeb9d8 | 5811 | modifiers &= VALMASK; |
80645119 | 5812 | |
0a7f1fc0 | 5813 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5814 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5815 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5816 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5817 | |
5818 | if (CONSP (entry)) | |
7539e11f | 5819 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5820 | else |
5821 | { | |
df0f2ba1 | 5822 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 5823 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
5824 | SDATA (SYMBOL_NAME (base)), |
5825 | SCHARS (SYMBOL_NAME (base)), | |
5826 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
5827 | |
5828 | /* Add the new symbol to the base's cache. */ | |
5829 | entry = Fcons (index, new_symbol); | |
5830 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5831 | ||
5832 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5833 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5834 | Fput (new_symbol, Qevent_symbol_element_mask, |
5835 | Fcons (base, Fcons (index, Qnil))); | |
5836 | Fput (new_symbol, Qevent_symbol_elements, | |
5837 | Fcons (base, lispy_modifier_list (modifiers))); | |
5838 | } | |
0a7f1fc0 | 5839 | |
df0f2ba1 | 5840 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5841 | |
5842 | You'd think we could just set this once and for all when we | |
5843 | intern the symbol above, but reorder_modifiers may call us when | |
5844 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5845 | because it has a Qmodifier_cache property it must have its |
5846 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5847 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5848 | { | |
9b8eb840 | 5849 | Lisp_Object kind; |
7b4aedb9 | 5850 | |
9b8eb840 | 5851 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5852 | if (! NILP (kind)) |
5853 | Fput (new_symbol, Qevent_kind, kind); | |
5854 | } | |
5855 | ||
5856 | return new_symbol; | |
0a7f1fc0 JB |
5857 | } |
5858 | ||
5859 | ||
5860 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5861 | return a symbol with the modifiers placed in the canonical order. | |
5862 | Canonical order is alphabetical, except for down and drag, which | |
5863 | always come last. The 'click' modifier is never written out. | |
5864 | ||
5865 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5866 | and M-C-foo end up being equivalent in the keymap. */ | |
5867 | ||
5868 | Lisp_Object | |
5869 | reorder_modifiers (symbol) | |
5870 | Lisp_Object symbol; | |
5871 | { | |
5872 | /* It's hopefully okay to write the code this way, since everything | |
5873 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5874 | Lisp_Object parsed; |
0a7f1fc0 | 5875 | |
9b8eb840 | 5876 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5877 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5878 | XCAR (parsed)); | |
0a7f1fc0 JB |
5879 | } |
5880 | ||
5881 | ||
284f4730 JB |
5882 | /* For handling events, we often want to produce a symbol whose name |
5883 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5884 | to some base, like the name of a function key or mouse button. | |
5885 | modify_event_symbol produces symbols of this sort. | |
5886 | ||
5887 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5888 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5889 | in the table. | |
5890 | ||
8e1e4240 GM |
5891 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
5892 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 5893 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
5894 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
5895 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 5896 | |
284f4730 JB |
5897 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5898 | persist between calls to modify_event_symbol that it can use to | |
5899 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5900 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5901 | |
5902 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5903 | |
284f4730 JB |
5904 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5905 | whose prefixes should be applied to the symbol name. | |
5906 | ||
5907 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5908 | the returned symbol. |
88cb0656 JB |
5909 | |
5910 | The symbols we create are supposed to have an | |
eb8c3be9 | 5911 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5912 | in the symbol's name. */ |
5913 | ||
284f4730 | 5914 | static Lisp_Object |
8e1e4240 | 5915 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 5916 | name_table, symbol_table, table_size) |
284f4730 JB |
5917 | int symbol_num; |
5918 | unsigned modifiers; | |
5919 | Lisp_Object symbol_kind; | |
8e1e4240 | 5920 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
5921 | char **name_table; |
5922 | Lisp_Object *symbol_table; | |
2c834fb3 | 5923 | unsigned int table_size; |
284f4730 | 5924 | { |
80e4aa30 RS |
5925 | Lisp_Object value; |
5926 | Lisp_Object symbol_int; | |
5927 | ||
2c834fb3 KH |
5928 | /* Get rid of the "vendor-specific" bit here. */ |
5929 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5930 | |
5931 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5932 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5933 | return Qnil; |
284f4730 | 5934 | |
80e4aa30 RS |
5935 | if (CONSP (*symbol_table)) |
5936 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5937 | ||
0a7f1fc0 | 5938 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5939 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5940 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5941 | we've never used that symbol before. */ | |
80e4aa30 | 5942 | else |
88cb0656 | 5943 | { |
80e4aa30 RS |
5944 | if (! VECTORP (*symbol_table) |
5945 | || XVECTOR (*symbol_table)->size != table_size) | |
5946 | { | |
5947 | Lisp_Object size; | |
0a7f1fc0 | 5948 | |
bb9e9bed | 5949 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5950 | *symbol_table = Fmake_vector (size, Qnil); |
5951 | } | |
284f4730 | 5952 | |
80e4aa30 RS |
5953 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5954 | } | |
284f4730 | 5955 | |
0a7f1fc0 | 5956 | /* Have we already used this symbol before? */ |
80e4aa30 | 5957 | if (NILP (value)) |
284f4730 | 5958 | { |
0a7f1fc0 | 5959 | /* No; let's create it. */ |
8e1e4240 GM |
5960 | if (CONSP (name_alist_or_stem)) |
5961 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
5962 | else if (STRINGP (name_alist_or_stem)) | |
5963 | { | |
d5db4077 | 5964 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 5965 | char *buf = (char *) alloca (len + 50); |
d5db4077 | 5966 | sprintf (buf, "%s-%d", SDATA (name_alist_or_stem), |
8e1e4240 GM |
5967 | XINT (symbol_int) + 1); |
5968 | value = intern (buf); | |
5969 | } | |
2ff6714d | 5970 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5971 | value = intern (name_table[symbol_num]); |
b64b4075 | 5972 | |
e98a93eb | 5973 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5974 | if (NILP (value)) |
5975 | { | |
5976 | char *name = x_get_keysym_name (symbol_num); | |
5977 | if (name) | |
5978 | value = intern (name); | |
5979 | } | |
5980 | #endif | |
5981 | ||
b64b4075 | 5982 | if (NILP (value)) |
d1f50460 RS |
5983 | { |
5984 | char buf[20]; | |
5985 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5986 | value = intern (buf); |
d1f50460 | 5987 | } |
0a7f1fc0 | 5988 | |
80e4aa30 | 5989 | if (CONSP (*symbol_table)) |
4205cb08 | 5990 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5991 | else |
5992 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5993 | ||
df0f2ba1 | 5994 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5995 | builds the Qevent_symbol_elements property, which the user |
5996 | cares about. */ | |
80e4aa30 RS |
5997 | apply_modifiers (modifiers & click_modifier, value); |
5998 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5999 | } |
88cb0656 | 6000 | |
0a7f1fc0 | 6001 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6002 | return apply_modifiers (modifiers, value); |
284f4730 | 6003 | } |
6da3dd3a RS |
6004 | \f |
6005 | /* Convert a list that represents an event type, | |
6006 | such as (ctrl meta backspace), into the usual representation of that | |
6007 | event type as a number or a symbol. */ | |
6008 | ||
a1706c30 | 6009 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6010 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6011 | EVENT-DESC should contain one base event type (a character or symbol) | |
6012 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6013 | drag, down, double or triple). The base must be last. | |
6014 | The return value is an event type (a character or symbol) which | |
6015 | has the same base event type and all the specified modifiers. */) | |
6016 | (event_desc) | |
e57d8fd8 | 6017 | Lisp_Object event_desc; |
6da3dd3a RS |
6018 | { |
6019 | Lisp_Object base; | |
6020 | int modifiers = 0; | |
6021 | Lisp_Object rest; | |
6022 | ||
6023 | base = Qnil; | |
e57d8fd8 | 6024 | rest = event_desc; |
6da3dd3a RS |
6025 | while (CONSP (rest)) |
6026 | { | |
6027 | Lisp_Object elt; | |
6028 | int this = 0; | |
6029 | ||
7539e11f KR |
6030 | elt = XCAR (rest); |
6031 | rest = XCDR (rest); | |
6da3dd3a | 6032 | |
3d31316f | 6033 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6034 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6035 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6036 | |
6037 | if (this != 0) | |
6038 | modifiers |= this; | |
6039 | else if (!NILP (base)) | |
6040 | error ("Two bases given in one event"); | |
6041 | else | |
6042 | base = elt; | |
6043 | ||
6da3dd3a RS |
6044 | } |
6045 | ||
3d31316f | 6046 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6047 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6048 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6049 | |
6da3dd3a RS |
6050 | if (INTEGERP (base)) |
6051 | { | |
3d31316f RS |
6052 | /* Turn (shift a) into A. */ |
6053 | if ((modifiers & shift_modifier) != 0 | |
6054 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6055 | { | |
6056 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6057 | modifiers &= ~shift_modifier; | |
6058 | } | |
6059 | ||
6060 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6061 | if (modifiers & ctrl_modifier) |
3d31316f | 6062 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6063 | | make_ctrl_char (XINT (base))); |
6064 | else | |
6065 | return make_number (modifiers | XINT (base)); | |
6066 | } | |
6067 | else if (SYMBOLP (base)) | |
6068 | return apply_modifiers (modifiers, base); | |
6069 | else | |
8c907a56 GM |
6070 | { |
6071 | error ("Invalid base event"); | |
6072 | return Qnil; | |
6073 | } | |
6da3dd3a RS |
6074 | } |
6075 | ||
3d31316f RS |
6076 | /* Try to recognize SYMBOL as a modifier name. |
6077 | Return the modifier flag bit, or 0 if not recognized. */ | |
6078 | ||
6079 | static int | |
6080 | parse_solitary_modifier (symbol) | |
6081 | Lisp_Object symbol; | |
6082 | { | |
1b049b51 | 6083 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6084 | |
1b049b51 | 6085 | switch (SREF (name, 0)) |
3d31316f RS |
6086 | { |
6087 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6088 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6089 | return BIT; |
6090 | ||
6091 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6092 | if (LEN == SBYTES (name) \ |
6093 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6094 | return BIT; |
6095 | ||
6096 | case 'A': | |
6097 | SINGLE_LETTER_MOD (alt_modifier); | |
6098 | break; | |
6099 | ||
6100 | case 'a': | |
6101 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6102 | break; | |
6103 | ||
6104 | case 'C': | |
6105 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6106 | break; | |
6107 | ||
6108 | case 'c': | |
6109 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6110 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6111 | break; | |
6112 | ||
6113 | case 'H': | |
6114 | SINGLE_LETTER_MOD (hyper_modifier); | |
6115 | break; | |
6116 | ||
6117 | case 'h': | |
6118 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6119 | break; | |
6120 | ||
6121 | case 'M': | |
6122 | SINGLE_LETTER_MOD (meta_modifier); | |
6123 | break; | |
6124 | ||
6125 | case 'm': | |
6126 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6127 | break; | |
6128 | ||
6129 | case 'S': | |
6130 | SINGLE_LETTER_MOD (shift_modifier); | |
6131 | break; | |
6132 | ||
6133 | case 's': | |
6134 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6135 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6136 | SINGLE_LETTER_MOD (super_modifier); | |
6137 | break; | |
6138 | ||
6139 | case 'd': | |
6140 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6141 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6142 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6143 | break; | |
6144 | ||
6145 | case 't': | |
6146 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6147 | break; | |
6148 | ||
6149 | #undef SINGLE_LETTER_MOD | |
6150 | #undef MULTI_LETTER_MOD | |
6151 | } | |
6152 | ||
6153 | return 0; | |
6154 | } | |
6155 | ||
6da3dd3a RS |
6156 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6157 | Such a list is not valid as an event, | |
6158 | but it can be a Lucid-style event type list. */ | |
6159 | ||
6160 | int | |
6161 | lucid_event_type_list_p (object) | |
6162 | Lisp_Object object; | |
6163 | { | |
6164 | Lisp_Object tail; | |
6165 | ||
6166 | if (! CONSP (object)) | |
6167 | return 0; | |
902ae620 GM |
6168 | |
6169 | if (EQ (XCAR (object), Qhelp_echo) | |
6170 | || EQ (XCAR (object), Qvertical_line) | |
6171 | || EQ (XCAR (object), Qmode_line) | |
6172 | || EQ (XCAR (object), Qheader_line)) | |
6173 | return 0; | |
6da3dd3a | 6174 | |
7539e11f | 6175 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6176 | { |
6177 | Lisp_Object elt; | |
7539e11f | 6178 | elt = XCAR (tail); |
6da3dd3a RS |
6179 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6180 | return 0; | |
6181 | } | |
6182 | ||
6183 | return NILP (tail); | |
6184 | } | |
284f4730 | 6185 | \f |
284f4730 JB |
6186 | /* Store into *addr a value nonzero if terminal input chars are available. |
6187 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6188 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6189 | (In fact, this may actually read some input.) |
6190 | ||
20057d52 JD |
6191 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. |
6192 | If FILTER_EVENTS is nonzero, ignore internal events (FOCUS_IN_EVENT). */ | |
284f4730 JB |
6193 | |
6194 | static void | |
20057d52 | 6195 | get_filtered_input_pending (addr, do_timers_now, filter_events) |
284f4730 | 6196 | int *addr; |
d9d4c147 | 6197 | int do_timers_now; |
20057d52 | 6198 | int filter_events; |
284f4730 JB |
6199 | { |
6200 | /* First of all, have we already counted some input? */ | |
20057d52 JD |
6201 | *addr = (!NILP (Vquit_flag) |
6202 | || readable_filtered_events (do_timers_now, filter_events)); | |
284f4730 JB |
6203 | |
6204 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6205 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6206 | return; | |
6207 | ||
6208 | /* Try to read some input and see how much we get. */ | |
6209 | gobble_input (0); | |
20057d52 JD |
6210 | *addr = (!NILP (Vquit_flag) |
6211 | || readable_filtered_events (do_timers_now, filter_events)); | |
6212 | } | |
6213 | ||
6214 | /* Store into *addr a value nonzero if terminal input chars are available. | |
6215 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6216 | but works even if FIONREAD does not exist. | |
6217 | (In fact, this may actually read some input.) | |
6218 | ||
6219 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
6220 | ||
6221 | static void | |
6222 | get_input_pending (addr, do_timers_now) | |
6223 | int *addr; | |
6224 | int do_timers_now; | |
6225 | { | |
6226 | get_filtered_input_pending (addr, do_timers_now, 0); | |
284f4730 JB |
6227 | } |
6228 | ||
81931ba1 | 6229 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6230 | |
07a59269 | 6231 | void |
284f4730 JB |
6232 | gobble_input (expected) |
6233 | int expected; | |
6234 | { | |
6235 | #ifndef VMS | |
6236 | #ifdef SIGIO | |
6237 | if (interrupt_input) | |
6238 | { | |
32676c08 | 6239 | SIGMASKTYPE mask; |
4f8aaa74 | 6240 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6241 | read_avail_input (expected); |
e065a56e | 6242 | sigsetmask (mask); |
284f4730 JB |
6243 | } |
6244 | else | |
81931ba1 RS |
6245 | #ifdef POLL_FOR_INPUT |
6246 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6247 | { | |
6248 | SIGMASKTYPE mask; | |
4f8aaa74 | 6249 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6250 | read_avail_input (expected); |
6251 | sigsetmask (mask); | |
6252 | } | |
6253 | else | |
87485d6f | 6254 | #endif |
284f4730 JB |
6255 | #endif |
6256 | read_avail_input (expected); | |
6257 | #endif | |
6258 | } | |
a8015ab5 | 6259 | |
3b8f9651 | 6260 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6261 | so that read_key_sequence will notice the new current buffer. */ |
6262 | ||
07a59269 | 6263 | void |
a8015ab5 KH |
6264 | record_asynch_buffer_change () |
6265 | { | |
6266 | struct input_event event; | |
a30f0615 RS |
6267 | Lisp_Object tem; |
6268 | ||
3b8f9651 | 6269 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6270 | event.frame_or_window = Qnil; |
da8f7368 | 6271 | event.arg = Qnil; |
241ceaf7 | 6272 | |
f65e6f7d | 6273 | #ifdef subprocesses |
a30f0615 RS |
6274 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6275 | The purpose of the event is to make read_key_sequence look up the | |
6276 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6277 | and the event could cause trouble by messing up (input-pending-p). */ | |
6278 | tem = Fwaiting_for_user_input_p (); | |
6279 | if (NILP (tem)) | |
6280 | return; | |
f65e6f7d RS |
6281 | #else |
6282 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6283 | return; | |
6284 | #endif | |
a30f0615 | 6285 | |
241ceaf7 RS |
6286 | /* Make sure no interrupt happens while storing the event. */ |
6287 | #ifdef SIGIO | |
6288 | if (interrupt_input) | |
6289 | { | |
6290 | SIGMASKTYPE mask; | |
4f8aaa74 | 6291 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6292 | kbd_buffer_store_event (&event); |
6293 | sigsetmask (mask); | |
6294 | } | |
6295 | else | |
6296 | #endif | |
6297 | { | |
6298 | stop_polling (); | |
6299 | kbd_buffer_store_event (&event); | |
6300 | start_polling (); | |
6301 | } | |
a8015ab5 | 6302 | } |
284f4730 JB |
6303 | \f |
6304 | #ifndef VMS | |
6305 | ||
6306 | /* Read any terminal input already buffered up by the system | |
6307 | into the kbd_buffer, but do not wait. | |
6308 | ||
6309 | EXPECTED should be nonzero if the caller knows there is some input. | |
6310 | ||
6311 | Except on VMS, all input is read by this function. | |
6312 | If interrupt_input is nonzero, this function MUST be called | |
6313 | only when SIGIO is blocked. | |
6314 | ||
6315 | Returns the number of keyboard chars read, or -1 meaning | |
6316 | this is a bad time to try to read input. */ | |
6317 | ||
6318 | static int | |
6319 | read_avail_input (expected) | |
6320 | int expected; | |
6321 | { | |
6322 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6323 | register int i; | |
6324 | int nread; | |
6325 | ||
6326 | if (read_socket_hook) | |
6327 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6328 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6329 | else |
6330 | { | |
17270835 RS |
6331 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6332 | the kbd_buffer can really hold. That may prevent loss | |
6333 | of characters on some systems when input is stuffed at us. */ | |
6334 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6335 | int n_to_read; |
284f4730 | 6336 | |
58788063 | 6337 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6338 | #ifdef WINDOWSNT |
6339 | return 0; | |
6340 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6341 | #ifdef MSDOS |
58788063 RS |
6342 | n_to_read = dos_keysns (); |
6343 | if (n_to_read == 0) | |
6344 | return 0; | |
c3a2738c | 6345 | #else /* not MSDOS */ |
284f4730 JB |
6346 | #ifdef FIONREAD |
6347 | /* Find out how much input is available. */ | |
437f6112 | 6348 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6349 | /* Formerly simply reported no input, but that sometimes led to |
6350 | a failure of Emacs to terminate. | |
6351 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6352 | /* ??? Is it really right to send the signal just to this process |
6353 | rather than to the whole process group? | |
6354 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 6355 | kill (getpid (), SIGHUP); |
58788063 | 6356 | if (n_to_read == 0) |
284f4730 | 6357 | return 0; |
58788063 RS |
6358 | if (n_to_read > sizeof cbuf) |
6359 | n_to_read = sizeof cbuf; | |
284f4730 | 6360 | #else /* no FIONREAD */ |
0c04a67e | 6361 | #if defined (USG) || defined (DGUX) |
284f4730 | 6362 | /* Read some input if available, but don't wait. */ |
58788063 | 6363 | n_to_read = sizeof cbuf; |
437f6112 | 6364 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6365 | #else |
6366 | you lose; | |
6367 | #endif | |
6368 | #endif | |
80e4aa30 | 6369 | #endif /* not MSDOS */ |
bc536d84 | 6370 | #endif /* not WINDOWSNT */ |
284f4730 | 6371 | |
58788063 RS |
6372 | /* Now read; for one reason or another, this will not block. |
6373 | NREAD is set to the number of chars read. */ | |
9134775b | 6374 | do |
284f4730 | 6375 | { |
80e4aa30 | 6376 | #ifdef MSDOS |
0c04a67e | 6377 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6378 | nread = 1; |
6379 | #else | |
68c45bf0 | 6380 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6381 | #endif |
49854566 RS |
6382 | /* POSIX infers that processes which are not in the session leader's |
6383 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6384 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6385 | when the control tty is taken away. |
6386 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6387 | if (nread == -1 && errno == EIO) | |
6388 | kill (0, SIGHUP); | |
762f2b92 | 6389 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6390 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6391 | This looks incorrect, but it isn't, because _BSD causes | |
6392 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6393 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6394 | if (nread == 0) |
80e4aa30 | 6395 | kill (0, SIGHUP); |
284f4730 | 6396 | #endif |
9134775b | 6397 | } |
791587ee KH |
6398 | while ( |
6399 | /* We used to retry the read if it was interrupted. | |
6400 | But this does the wrong thing when O_NDELAY causes | |
6401 | an EAGAIN error. Does anybody know of a situation | |
6402 | where a retry is actually needed? */ | |
6403 | #if 0 | |
6404 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6405 | #ifdef EFAULT |
9134775b | 6406 | || errno == EFAULT |
80e4aa30 | 6407 | #endif |
284f4730 | 6408 | #ifdef EBADSLT |
9134775b | 6409 | || errno == EBADSLT |
284f4730 | 6410 | #endif |
791587ee KH |
6411 | ) |
6412 | #else | |
6413 | 0 | |
6414 | #endif | |
6415 | ); | |
284f4730 JB |
6416 | |
6417 | #ifndef FIONREAD | |
02c2c53f | 6418 | #if defined (USG) || defined (DGUX) |
437f6112 | 6419 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 6420 | #endif /* USG or DGUX */ |
284f4730 JB |
6421 | #endif /* no FIONREAD */ |
6422 | for (i = 0; i < nread; i++) | |
6423 | { | |
3b8f9651 | 6424 | buf[i].kind = ASCII_KEYSTROKE_EVENT; |
86e5706b | 6425 | buf[i].modifiers = 0; |
b04904fb | 6426 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6427 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6428 | if (meta_key != 2) |
6429 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6430 | |
6431 | buf[i].code = cbuf[i]; | |
788f89eb | 6432 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6433 | buf[i].arg = Qnil; |
284f4730 JB |
6434 | } |
6435 | } | |
6436 | ||
6437 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6438 | for (i = 0; i < nread; i++) | |
6439 | { | |
6440 | kbd_buffer_store_event (&buf[i]); | |
6441 | /* Don't look at input that follows a C-g too closely. | |
6442 | This reduces lossage due to autorepeat on C-g. */ | |
3b8f9651 | 6443 | if (buf[i].kind == ASCII_KEYSTROKE_EVENT |
9343ab07 | 6444 | && buf[i].code == quit_char) |
284f4730 JB |
6445 | break; |
6446 | } | |
6447 | ||
6448 | return nread; | |
6449 | } | |
6450 | #endif /* not VMS */ | |
6451 | \f | |
6452 | #ifdef SIGIO /* for entire page */ | |
6453 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6454 | ||
2ce30ea2 | 6455 | SIGTYPE |
284f4730 JB |
6456 | input_available_signal (signo) |
6457 | int signo; | |
6458 | { | |
6459 | /* Must preserve main program's value of errno. */ | |
6460 | int old_errno = errno; | |
6461 | #ifdef BSD4_1 | |
6462 | extern int select_alarmed; | |
6463 | #endif | |
6464 | ||
5970a8cb | 6465 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6466 | /* USG systems forget handlers when they are used; |
6467 | must reestablish each time */ | |
6468 | signal (signo, input_available_signal); | |
6469 | #endif /* USG */ | |
6470 | ||
6471 | #ifdef BSD4_1 | |
6472 | sigisheld (SIGIO); | |
6473 | #endif | |
6474 | ||
ffd56f97 JB |
6475 | if (input_available_clear_time) |
6476 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6477 | |
6478 | while (1) | |
6479 | { | |
6480 | int nread; | |
6481 | nread = read_avail_input (1); | |
6482 | /* -1 means it's not ok to read the input now. | |
6483 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6484 | 0 means there was no keyboard input available. */ | |
6485 | if (nread <= 0) | |
6486 | break; | |
6487 | ||
6488 | #ifdef BSD4_1 | |
6489 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6490 | #endif | |
6491 | } | |
6492 | ||
6493 | #ifdef BSD4_1 | |
6494 | sigfree (); | |
6495 | #endif | |
6496 | errno = old_errno; | |
6497 | } | |
6498 | #endif /* SIGIO */ | |
ad163903 JB |
6499 | |
6500 | /* Send ourselves a SIGIO. | |
6501 | ||
6502 | This function exists so that the UNBLOCK_INPUT macro in | |
6503 | blockinput.h can have some way to take care of input we put off | |
6504 | dealing with, without assuming that every file which uses | |
6505 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6506 | void | |
6507 | reinvoke_input_signal () | |
6508 | { | |
df0f2ba1 | 6509 | #ifdef SIGIO |
87dd9b9b | 6510 | kill (getpid (), SIGIO); |
ad163903 JB |
6511 | #endif |
6512 | } | |
6513 | ||
6514 | ||
284f4730 | 6515 | \f |
25126faa GM |
6516 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object)); |
6517 | static void menu_bar_one_keymap P_ ((Lisp_Object)); | |
b7c49376 RS |
6518 | |
6519 | /* These variables hold the vector under construction within | |
6520 | menu_bar_items and its subroutines, and the current index | |
6521 | for storing into that vector. */ | |
6522 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6523 | static int menu_bar_items_index; |
5ec75a55 | 6524 | |
b7c49376 RS |
6525 | /* Return a vector of menu items for a menu bar, appropriate |
6526 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6527 | KEY STRING MAPLIST. |
b7c49376 RS |
6528 | |
6529 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6530 | |
6531 | Lisp_Object | |
b7c49376 RS |
6532 | menu_bar_items (old) |
6533 | Lisp_Object old; | |
5ec75a55 RS |
6534 | { |
6535 | /* The number of keymaps we're scanning right now, and the number of | |
6536 | keymaps we have allocated space for. */ | |
6537 | int nmaps; | |
6538 | ||
6539 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6540 | in the current keymaps, or nil where it is not a prefix. */ | |
6541 | Lisp_Object *maps; | |
6542 | ||
aebfea68 | 6543 | Lisp_Object def, tail; |
5ec75a55 RS |
6544 | |
6545 | Lisp_Object result; | |
6546 | ||
6547 | int mapno; | |
47d319aa | 6548 | Lisp_Object oquit; |
5ec75a55 | 6549 | |
b7c49376 RS |
6550 | int i; |
6551 | ||
6552 | struct gcpro gcpro1; | |
6553 | ||
db60d856 JB |
6554 | /* In order to build the menus, we need to call the keymap |
6555 | accessors. They all call QUIT. But this function is called | |
6556 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6557 | quitting while building the menus. |
6558 | We do this instead of specbind because (1) errors will clear it anyway | |
6559 | and (2) this avoids risk of specpdl overflow. */ | |
6560 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6561 | Vinhibit_quit = Qt; |
db60d856 | 6562 | |
b7c49376 RS |
6563 | if (!NILP (old)) |
6564 | menu_bar_items_vector = old; | |
6565 | else | |
6566 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6567 | menu_bar_items_index = 0; | |
6568 | ||
6569 | GCPRO1 (menu_bar_items_vector); | |
6570 | ||
5ec75a55 RS |
6571 | /* Build our list of keymaps. |
6572 | If we recognize a function key and replace its escape sequence in | |
6573 | keybuf with its symbol, or if the sequence starts with a mouse | |
6574 | click and we need to switch buffers, we jump back here to rebuild | |
6575 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6576 | { |
5ec75a55 RS |
6577 | Lisp_Object *tmaps; |
6578 | ||
217258d5 | 6579 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6580 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6581 | { |
217258d5 KH |
6582 | /* Yes, use them (if non-nil) as well as the global map. */ |
6583 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6584 | nmaps = 0; | |
6585 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6586 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6587 | if (!NILP (Voverriding_local_map)) | |
6588 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6589 | } |
6590 | else | |
6591 | { | |
fd646341 KS |
6592 | /* No, so use major and minor mode keymaps and keymap property. |
6593 | Note that menu-bar bindings in the local-map and keymap | |
6594 | properties may not work reliable, as they are only | |
6595 | recognized when the menu-bar (or mode-line) is updated, | |
6596 | which does not normally happen after every command. */ | |
6597 | Lisp_Object tem; | |
6598 | int nminor; | |
6599 | nminor = current_minor_maps (NULL, &tmaps); | |
6600 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6601 | nmaps = 0; | |
6602 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6603 | maps[nmaps++] = tem; | |
6604 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6605 | nmaps += nminor; | |
6606 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6607 | } |
217258d5 | 6608 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6609 | } |
6610 | ||
6611 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6612 | ||
6613 | result = Qnil; | |
6614 | ||
e58aa385 | 6615 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6616 | if (!NILP (maps[mapno])) |
6617 | { | |
341a09cf SM |
6618 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6619 | 0, 1); | |
02067692 | 6620 | if (CONSP (def)) |
25126faa GM |
6621 | menu_bar_one_keymap (def); |
6622 | } | |
5ec75a55 | 6623 | |
b7c49376 RS |
6624 | /* Move to the end those items that should be at the end. */ |
6625 | ||
7539e11f | 6626 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6627 | { |
b7c49376 RS |
6628 | int i; |
6629 | int end = menu_bar_items_index; | |
6630 | ||
35b3402f | 6631 | for (i = 0; i < end; i += 4) |
7539e11f | 6632 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6633 | { |
35b3402f | 6634 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6635 | /* Move the item at index I to the end, |
6636 | shifting all the others forward. */ | |
6637 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6638 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6639 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6640 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6641 | if (end > i + 4) | |
6642 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6643 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6644 | (end - i - 4) * sizeof (Lisp_Object)); |
6645 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6646 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6647 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6648 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6649 | break; |
b7c49376 RS |
6650 | } |
6651 | } | |
9f9c0e27 | 6652 | |
0c9071cd | 6653 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6654 | i = menu_bar_items_index; |
35b3402f | 6655 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6656 | { |
6657 | Lisp_Object tem; | |
b7c49376 RS |
6658 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6659 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6660 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6661 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6662 | } |
b7c49376 RS |
6663 | /* Add this item. */ |
6664 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6665 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6666 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6667 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6668 | menu_bar_items_index = i; |
a73c5e29 | 6669 | |
47d319aa | 6670 | Vinhibit_quit = oquit; |
b7c49376 RS |
6671 | UNGCPRO; |
6672 | return menu_bar_items_vector; | |
5ec75a55 RS |
6673 | } |
6674 | \f | |
6675 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 6676 | in menu_bar_items_vector. */ |
5ec75a55 | 6677 | |
759860a6 RS |
6678 | static Lisp_Object menu_bar_one_keymap_changed_items; |
6679 | ||
b7c49376 RS |
6680 | static void |
6681 | menu_bar_one_keymap (keymap) | |
6682 | Lisp_Object keymap; | |
5ec75a55 | 6683 | { |
03cee6ae | 6684 | Lisp_Object tail, item; |
5ec75a55 | 6685 | |
759860a6 RS |
6686 | menu_bar_one_keymap_changed_items = Qnil; |
6687 | ||
5ec75a55 | 6688 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 6689 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 6690 | { |
7539e11f | 6691 | item = XCAR (tail); |
8c18cbfb | 6692 | if (CONSP (item)) |
7539e11f | 6693 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 6694 | else if (VECTORP (item)) |
5ec75a55 RS |
6695 | { |
6696 | /* Loop over the char values represented in the vector. */ | |
6697 | int len = XVECTOR (item)->size; | |
6698 | int c; | |
6699 | for (c = 0; c < len; c++) | |
6700 | { | |
6701 | Lisp_Object character; | |
bb9e9bed | 6702 | XSETFASTINT (character, c); |
e8886a1d | 6703 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
6704 | } |
6705 | } | |
6706 | } | |
5ec75a55 RS |
6707 | } |
6708 | ||
f5e09c8b RS |
6709 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6710 | If there's already an item for KEY, add this DEF to it. */ | |
6711 | ||
e8886a1d RS |
6712 | Lisp_Object item_properties; |
6713 | ||
b7c49376 | 6714 | static void |
e8886a1d RS |
6715 | menu_bar_item (key, item) |
6716 | Lisp_Object key, item; | |
5ec75a55 | 6717 | { |
e8886a1d | 6718 | struct gcpro gcpro1; |
b7c49376 | 6719 | int i; |
759860a6 | 6720 | Lisp_Object tem; |
5ec75a55 | 6721 | |
e8886a1d | 6722 | if (EQ (item, Qundefined)) |
e58aa385 | 6723 | { |
f5e09c8b | 6724 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6725 | discard any previously made menu bar item. */ |
b7c49376 | 6726 | |
35b3402f | 6727 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6728 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6729 | { | |
35b3402f RS |
6730 | if (menu_bar_items_index > i + 4) |
6731 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6732 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6733 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6734 | menu_bar_items_index -= 4; | |
b7c49376 | 6735 | } |
e58aa385 RS |
6736 | } |
6737 | ||
759860a6 RS |
6738 | /* If this keymap has already contributed to this KEY, |
6739 | don't contribute to it a second time. */ | |
6740 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6741 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6742 | return; |
6743 | ||
6744 | menu_bar_one_keymap_changed_items | |
6745 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6746 | ||
9cd2ced7 SM |
6747 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6748 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6749 | it still correctly hides any further menu item. */ | |
6750 | GCPRO1 (key); | |
6751 | i = parse_menu_item (item, 0, 1); | |
6752 | UNGCPRO; | |
6753 | if (!i) | |
6754 | return; | |
6755 | ||
e8886a1d RS |
6756 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6757 | ||
f5e09c8b | 6758 | /* Find any existing item for this KEY. */ |
35b3402f | 6759 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6760 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6761 | break; | |
6762 | ||
f5e09c8b | 6763 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6764 | if (i == menu_bar_items_index) |
6765 | { | |
6766 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6767 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6768 | { |
6769 | Lisp_Object tem; | |
b7c49376 RS |
6770 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6771 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6772 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6773 | menu_bar_items_vector = tem; | |
6774 | } | |
e8886a1d | 6775 | |
b7c49376 RS |
6776 | /* Add this item. */ |
6777 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6778 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6779 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6780 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6781 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6782 | menu_bar_items_index = i; |
6783 | } | |
e8886a1d | 6784 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6785 | else |
6786 | { | |
6787 | Lisp_Object old; | |
6788 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6789 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6790 | } |
5ec75a55 RS |
6791 | } |
6792 | \f | |
e8886a1d RS |
6793 | /* This is used as the handler when calling menu_item_eval_property. */ |
6794 | static Lisp_Object | |
6795 | menu_item_eval_property_1 (arg) | |
6796 | Lisp_Object arg; | |
6797 | { | |
6798 | /* If we got a quit from within the menu computation, | |
6799 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6800 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6801 | Fsignal (Qquit, Qnil); |
6802 | ||
6803 | return Qnil; | |
6804 | } | |
6805 | ||
6806 | /* Evaluate an expression and return the result (or nil if something | |
6807 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6808 | Lisp_Object |
e8886a1d RS |
6809 | menu_item_eval_property (sexpr) |
6810 | Lisp_Object sexpr; | |
6811 | { | |
aed13378 | 6812 | int count = SPECPDL_INDEX (); |
e8886a1d | 6813 | Lisp_Object val; |
44e553a3 | 6814 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6815 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6816 | menu_item_eval_property_1); | |
44e553a3 | 6817 | return unbind_to (count, val); |
e8886a1d RS |
6818 | } |
6819 | ||
6820 | /* This function parses a menu item and leaves the result in the | |
6821 | vector item_properties. | |
6822 | ITEM is a key binding, a possible menu item. | |
6823 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6824 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6825 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6826 | top level. |
fd3613d7 | 6827 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6828 | parse_menu_item returns true if the item is a menu item and false |
6829 | otherwise. */ | |
6830 | ||
6831 | int | |
6832 | parse_menu_item (item, notreal, inmenubar) | |
6833 | Lisp_Object item; | |
6834 | int notreal, inmenubar; | |
6835 | { | |
adc1d5c8 | 6836 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6837 | Lisp_Object cachelist; |
6838 | Lisp_Object filter; | |
6839 | Lisp_Object keyhint; | |
e8886a1d | 6840 | int i; |
74c1de23 RS |
6841 | int newcache = 0; |
6842 | ||
07ba902e RS |
6843 | cachelist = Qnil; |
6844 | filter = Qnil; | |
6845 | keyhint = Qnil; | |
6846 | ||
e8886a1d RS |
6847 | if (!CONSP (item)) |
6848 | return 0; | |
6849 | ||
e8886a1d RS |
6850 | /* Create item_properties vector if necessary. */ |
6851 | if (NILP (item_properties)) | |
6852 | item_properties | |
6853 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6854 | ||
6855 | /* Initialize optional entries. */ | |
6856 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
6857 | AREF (item_properties, i) = Qnil; |
6858 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
e8886a1d RS |
6859 | |
6860 | /* Save the item here to protect it from GC. */ | |
3626fb1a | 6861 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 6862 | |
7539e11f | 6863 | item_string = XCAR (item); |
e8886a1d RS |
6864 | |
6865 | start = item; | |
7539e11f | 6866 | item = XCDR (item); |
e8886a1d RS |
6867 | if (STRINGP (item_string)) |
6868 | { | |
6869 | /* Old format menu item. */ | |
3626fb1a | 6870 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6871 | |
6872 | /* Maybe help string. */ | |
7539e11f | 6873 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 6874 | { |
3626fb1a | 6875 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6876 | start = item; |
7539e11f | 6877 | item = XCDR (item); |
e8886a1d RS |
6878 | } |
6879 | ||
31f84d03 | 6880 | /* Maybe key binding cache. */ |
7539e11f KR |
6881 | if (CONSP (item) && CONSP (XCAR (item)) |
6882 | && (NILP (XCAR (XCAR (item))) | |
6883 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6884 | { |
7539e11f KR |
6885 | cachelist = XCAR (item); |
6886 | item = XCDR (item); | |
e8886a1d RS |
6887 | } |
6888 | ||
6889 | /* This is the real definition--the function to run. */ | |
3626fb1a | 6890 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
6891 | |
6892 | /* Get enable property, if any. */ | |
6893 | if (SYMBOLP (item)) | |
6894 | { | |
6895 | tem = Fget (item, Qmenu_enable); | |
6896 | if (!NILP (tem)) | |
3626fb1a | 6897 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
6898 | } |
6899 | } | |
6900 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6901 | { | |
6902 | /* New format menu item. */ | |
3626fb1a | 6903 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 6904 | start = XCDR (item); |
e8886a1d RS |
6905 | if (CONSP (start)) |
6906 | { | |
6907 | /* We have a real binding. */ | |
3626fb1a | 6908 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 6909 | |
7539e11f | 6910 | item = XCDR (start); |
e8886a1d | 6911 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6912 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6913 | { |
7539e11f KR |
6914 | cachelist = XCAR (item); |
6915 | item = XCDR (item); | |
e8886a1d RS |
6916 | } |
6917 | ||
6918 | /* Parse properties. */ | |
7539e11f | 6919 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6920 | { |
7539e11f KR |
6921 | tem = XCAR (item); |
6922 | item = XCDR (item); | |
e8886a1d RS |
6923 | |
6924 | if (EQ (tem, QCenable)) | |
3626fb1a | 6925 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
6926 | else if (EQ (tem, QCvisible) && !notreal) |
6927 | { | |
6928 | /* If got a visible property and that evaluates to nil | |
6929 | then ignore this item. */ | |
7539e11f | 6930 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6931 | if (NILP (tem)) |
adc1d5c8 | 6932 | return 0; |
e8886a1d RS |
6933 | } |
6934 | else if (EQ (tem, QChelp)) | |
3626fb1a | 6935 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 6936 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6937 | filter = item; |
6938 | else if (EQ (tem, QCkey_sequence)) | |
6939 | { | |
7539e11f | 6940 | tem = XCAR (item); |
74c1de23 RS |
6941 | if (NILP (cachelist) |
6942 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6943 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6944 | keyhint = item; | |
6945 | } | |
6946 | else if (EQ (tem, QCkeys)) | |
6947 | { | |
7539e11f | 6948 | tem = XCAR (item); |
03cee6ae | 6949 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 6950 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 6951 | } |
7539e11f | 6952 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6953 | { |
74c1de23 | 6954 | Lisp_Object type; |
7539e11f KR |
6955 | tem = XCAR (item); |
6956 | type = XCAR (tem); | |
e8886a1d RS |
6957 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6958 | { | |
3626fb1a | 6959 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 6960 | = XCDR (tem); |
3626fb1a | 6961 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
6962 | = type; |
6963 | } | |
6964 | } | |
7539e11f | 6965 | item = XCDR (item); |
e8886a1d RS |
6966 | } |
6967 | } | |
6968 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6969 | return 0; |
e8886a1d RS |
6970 | } |
6971 | else | |
adc1d5c8 | 6972 | return 0; /* not a menu item */ |
e8886a1d RS |
6973 | |
6974 | /* If item string is not a string, evaluate it to get string. | |
6975 | If we don't get a string, skip this item. */ | |
3626fb1a | 6976 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
6977 | if (!(STRINGP (item_string) || notreal)) |
6978 | { | |
6979 | item_string = menu_item_eval_property (item_string); | |
6980 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6981 | return 0; |
3626fb1a | 6982 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
6983 | } |
6984 | ||
6985 | /* If got a filter apply it on definition. */ | |
3626fb1a | 6986 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
6987 | if (!NILP (filter)) |
6988 | { | |
7539e11f | 6989 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6990 | list2 (Qquote, def))); |
6991 | ||
3626fb1a | 6992 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
6993 | } |
6994 | ||
e8886a1d | 6995 | /* Enable or disable selection of item. */ |
3626fb1a | 6996 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
6997 | if (!EQ (tem, Qt)) |
6998 | { | |
6999 | if (notreal) | |
7000 | tem = Qt; | |
7001 | else | |
7002 | tem = menu_item_eval_property (tem); | |
7003 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7004 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7005 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7006 | } |
7007 | ||
7189cad8 SM |
7008 | /* If we got no definition, this item is just unselectable text which |
7009 | is OK in a submenu but not in the menubar. */ | |
7010 | if (NILP (def)) | |
7011 | return (inmenubar ? 0 : 1); | |
7012 | ||
e8886a1d | 7013 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7014 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7015 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7016 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7017 | if (CONSP (tem)) |
e8886a1d | 7018 | { |
3626fb1a GM |
7019 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7020 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7021 | return 1; |
7022 | } | |
3626fb1a | 7023 | |
9ac425d1 RS |
7024 | /* At the top level in the menu bar, do likewise for commands also. |
7025 | The menu bar does not display equivalent key bindings anyway. | |
7026 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7027 | if (inmenubar > 0) | |
7028 | return 1; | |
e8886a1d RS |
7029 | |
7030 | /* This is a command. See if there is an equivalent key binding. */ | |
7031 | if (NILP (cachelist)) | |
7032 | { | |
74c1de23 | 7033 | /* We have to create a cachelist. */ |
e8886a1d | 7034 | CHECK_IMPURE (start); |
f3fbd155 | 7035 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7036 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7037 | newcache = 1; |
3626fb1a | 7038 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7039 | if (!NILP (keyhint)) |
7040 | { | |
f3fbd155 | 7041 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7042 | newcache = 0; |
7043 | } | |
7044 | else if (STRINGP (tem)) | |
7045 | { | |
f3fbd155 KR |
7046 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7047 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7048 | } |
7049 | } | |
3626fb1a | 7050 | |
7539e11f | 7051 | tem = XCAR (cachelist); |
74c1de23 RS |
7052 | if (!EQ (tem, Qt)) |
7053 | { | |
7054 | int chkcache = 0; | |
7055 | Lisp_Object prefix; | |
7056 | ||
7057 | if (!NILP (tem)) | |
8b9940e6 | 7058 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7059 | |
3626fb1a | 7060 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7061 | if (CONSP (prefix)) |
7062 | { | |
7539e11f KR |
7063 | def = XCAR (prefix); |
7064 | prefix = XCDR (prefix); | |
74c1de23 | 7065 | } |
e8886a1d | 7066 | else |
3626fb1a | 7067 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7068 | |
3626fb1a GM |
7069 | if (!update_menu_bindings) |
7070 | chkcache = 0; | |
7071 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7072 | { |
7073 | if (newcache /* Always check first time. */ | |
7074 | /* Should we check everything when precomputing key | |
7075 | bindings? */ | |
74c1de23 RS |
7076 | /* If something had no key binding before, don't recheck it |
7077 | because that is too slow--except if we have a list of | |
7078 | rebound commands in Vdefine_key_rebound_commands, do | |
7079 | recheck any command that appears in that list. */ | |
7080 | || (CONSP (Vdefine_key_rebound_commands) | |
7081 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7082 | chkcache = 1; | |
7083 | } | |
7084 | /* We had a saved key. Is it still bound to the command? */ | |
7085 | else if (NILP (tem) | |
03cee6ae GM |
7086 | || (!EQ (tem, def) |
7087 | /* If the command is an alias for another | |
7088 | (such as lmenu.el set it up), check if the | |
7089 | original command matches the cached command. */ | |
7090 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7091 | chkcache = 1; /* Need to recompute key binding. */ |
7092 | ||
7093 | if (chkcache) | |
7094 | { | |
7095 | /* Recompute equivalent key binding. If the command is an alias | |
7096 | for another (such as lmenu.el set it up), see if the original | |
7097 | command name has equivalent keys. Otherwise look up the | |
7098 | specified command itself. We don't try both, because that | |
7099 | makes lmenu menus slow. */ | |
3626fb1a GM |
7100 | if (SYMBOLP (def) |
7101 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7102 | && ! NILP (Fget (def, Qmenu_alias))) |
7103 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7104 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7105 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7106 | if (NILP (tem)) |
7107 | { | |
f3fbd155 | 7108 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7109 | chkcache = 0; |
7110 | } | |
7111 | } | |
7539e11f | 7112 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7113 | { |
7539e11f | 7114 | tem = XCAR (cachelist); |
74c1de23 RS |
7115 | chkcache = 1; |
7116 | } | |
7117 | ||
7118 | newcache = chkcache; | |
7119 | if (chkcache) | |
7120 | { | |
7121 | tem = Fkey_description (tem); | |
7122 | if (CONSP (prefix)) | |
7123 | { | |
7539e11f KR |
7124 | if (STRINGP (XCAR (prefix))) |
7125 | tem = concat2 (XCAR (prefix), tem); | |
7126 | if (STRINGP (XCDR (prefix))) | |
7127 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7128 | } |
f3fbd155 | 7129 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7130 | } |
7131 | } | |
7132 | ||
7539e11f | 7133 | tem = XCDR (cachelist); |
74c1de23 | 7134 | if (newcache && !NILP (tem)) |
e8886a1d | 7135 | { |
74c1de23 | 7136 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7137 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7138 | } |
7139 | ||
7140 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7141 | if (notreal) | |
adc1d5c8 | 7142 | return 1; |
e8886a1d RS |
7143 | |
7144 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7145 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7146 | |
7147 | /* Include this when menu help is implemented. | |
7148 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7149 | if (!(NILP (tem) || STRINGP (tem))) | |
7150 | { | |
7151 | tem = menu_item_eval_property (tem); | |
7152 | if (!STRINGP (tem)) | |
7153 | tem = Qnil; | |
7154 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7155 | } | |
e8886a1d RS |
7156 | */ |
7157 | ||
7158 | /* Handle radio buttons or toggle boxes. */ | |
3626fb1a | 7159 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7160 | if (!NILP (tem)) |
3626fb1a | 7161 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7162 | = menu_item_eval_property (tem); |
7163 | ||
e8886a1d RS |
7164 | return 1; |
7165 | } | |
7ee32cda GM |
7166 | |
7167 | ||
7168 | \f | |
7169 | /*********************************************************************** | |
7170 | Tool-bars | |
7171 | ***********************************************************************/ | |
7172 | ||
9ea173e8 | 7173 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7174 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7175 | in the vector. */ |
7ee32cda | 7176 | |
9ea173e8 | 7177 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7178 | |
9ea173e8 GM |
7179 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7180 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7181 | |
9ea173e8 | 7182 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7183 | |
9ea173e8 | 7184 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7185 | |
9ea173e8 | 7186 | static int ntool_bar_items; |
7ee32cda | 7187 | |
9ea173e8 | 7188 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7189 | |
9ea173e8 | 7190 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7191 | Lisp_Object QCimage; |
7192 | ||
7193 | /* Function prototypes. */ | |
7194 | ||
9ea173e8 GM |
7195 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7196 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7197 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7198 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7199 | |
7200 | ||
9ea173e8 | 7201 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7202 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7203 | tool bar items found. */ |
7ee32cda GM |
7204 | |
7205 | Lisp_Object | |
9ea173e8 | 7206 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7207 | Lisp_Object reuse; |
7208 | int *nitems; | |
7209 | { | |
7210 | Lisp_Object *maps; | |
7211 | int nmaps, i; | |
7212 | Lisp_Object oquit; | |
7213 | Lisp_Object *tmaps; | |
7ee32cda GM |
7214 | |
7215 | *nitems = 0; | |
7216 | ||
7217 | /* In order to build the menus, we need to call the keymap | |
7218 | accessors. They all call QUIT. But this function is called | |
7219 | during redisplay, during which a quit is fatal. So inhibit | |
7220 | quitting while building the menus. We do this instead of | |
7221 | specbind because (1) errors will clear it anyway and (2) this | |
7222 | avoids risk of specpdl overflow. */ | |
7223 | oquit = Vinhibit_quit; | |
7224 | Vinhibit_quit = Qt; | |
7225 | ||
9ea173e8 GM |
7226 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7227 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7228 | |
7229 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7230 | to process. */ | |
7231 | ||
7232 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7233 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7234 | { | |
7235 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7236 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7237 | nmaps = 0; | |
7238 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7239 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7240 | if (!NILP (Voverriding_local_map)) | |
7241 | maps[nmaps++] = Voverriding_local_map; | |
7242 | } | |
7243 | else | |
7244 | { | |
fd646341 KS |
7245 | /* No, so use major and minor mode keymaps and keymap property. |
7246 | Note that tool-bar bindings in the local-map and keymap | |
7247 | properties may not work reliable, as they are only | |
7248 | recognized when the tool-bar (or mode-line) is updated, | |
7249 | which does not normally happen after every command. */ | |
7250 | Lisp_Object tem; | |
7251 | int nminor; | |
7252 | nminor = current_minor_maps (NULL, &tmaps); | |
7253 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7254 | nmaps = 0; | |
7255 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7256 | maps[nmaps++] = tem; | |
7257 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7258 | nmaps += nminor; | |
7259 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7260 | } |
7261 | ||
7262 | /* Add global keymap at the end. */ | |
7263 | maps[nmaps++] = current_global_map; | |
7264 | ||
7265 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7266 | key `tool-bar'. */ |
7ee32cda GM |
7267 | for (i = nmaps - 1; i >= 0; --i) |
7268 | if (!NILP (maps[i])) | |
7269 | { | |
7270 | Lisp_Object keymap; | |
db785038 | 7271 | |
341a09cf | 7272 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7273 | if (CONSP (keymap)) |
7ee32cda GM |
7274 | { |
7275 | Lisp_Object tail; | |
7276 | ||
7277 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 7278 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7279 | { |
7280 | Lisp_Object keydef = XCAR (tail); | |
7281 | if (CONSP (keydef)) | |
9ea173e8 | 7282 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7283 | } |
7284 | } | |
7285 | } | |
7286 | ||
7287 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7288 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7289 | return tool_bar_items_vector; | |
7ee32cda GM |
7290 | } |
7291 | ||
7292 | ||
7293 | /* Process the definition of KEY which is DEF. */ | |
7294 | ||
7295 | static void | |
9ea173e8 | 7296 | process_tool_bar_item (key, def) |
7ee32cda GM |
7297 | Lisp_Object key, def; |
7298 | { | |
7299 | int i; | |
7300 | extern Lisp_Object Qundefined; | |
7301 | struct gcpro gcpro1, gcpro2; | |
7302 | ||
9ea173e8 | 7303 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7304 | eval. */ |
7305 | GCPRO2 (key, def); | |
7306 | ||
7307 | if (EQ (def, Qundefined)) | |
7308 | { | |
7309 | /* If a map has an explicit `undefined' as definition, | |
7310 | discard any previously made item. */ | |
9ea173e8 | 7311 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7312 | { |
9ea173e8 | 7313 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 7314 | |
9ea173e8 | 7315 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7316 | { |
9ea173e8 GM |
7317 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7318 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7319 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7320 | * sizeof (Lisp_Object))); |
9ea173e8 | 7321 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7322 | break; |
7323 | } | |
7324 | } | |
7325 | } | |
9ea173e8 GM |
7326 | else if (parse_tool_bar_item (key, def)) |
7327 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7328 | more than one definition for the same key. */ |
9ea173e8 | 7329 | append_tool_bar_item (); |
7ee32cda GM |
7330 | |
7331 | UNGCPRO; | |
7332 | } | |
7333 | ||
7334 | ||
9ea173e8 GM |
7335 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7336 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7337 | invalid. |
7338 | ||
7339 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
7340 | ||
7341 | CAPTION is the caption of the item, If it's not a string, it is | |
7342 | evaluated to get a string. | |
7343 | ||
9ea173e8 | 7344 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7345 | as binding are currently ignored. |
7346 | ||
7347 | The following properties are recognized: | |
7348 | ||
7349 | - `:enable FORM'. | |
7350 | ||
9ea173e8 GM |
7351 | FORM is evaluated and specifies whether the tool bar item is |
7352 | enabled or disabled. | |
7ee32cda GM |
7353 | |
7354 | - `:visible FORM' | |
7355 | ||
9ea173e8 | 7356 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
7357 | |
7358 | - `:filter FUNCTION' | |
7359 | ||
7360 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7361 | result is stored as the new binding. | |
7362 | ||
7363 | - `:button (TYPE SELECTED)' | |
7364 | ||
7365 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7366 | and specifies whether the button is selected (pressed) or not. | |
7367 | ||
7368 | - `:image IMAGES' | |
7369 | ||
7370 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7371 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
7372 | |
7373 | - `:help HELP-STRING'. | |
7374 | ||
9ea173e8 | 7375 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7376 | |
7377 | static int | |
9ea173e8 | 7378 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7379 | Lisp_Object key, item; |
7380 | { | |
9ea173e8 GM |
7381 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7382 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7383 | |
7384 | Lisp_Object filter = Qnil; | |
7385 | Lisp_Object caption; | |
7ee32cda | 7386 | int i; |
7ee32cda | 7387 | |
8c907a56 GM |
7388 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7389 | Rule out items that aren't lists, don't start with | |
7390 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7391 | list. */ |
7392 | if (!CONSP (item) | |
7393 | || !EQ (XCAR (item), Qmenu_item) | |
7394 | || (item = XCDR (item), | |
7395 | !CONSP (item))) | |
7396 | return 0; | |
7397 | ||
9ea173e8 | 7398 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7399 | defaults. */ |
9ea173e8 | 7400 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7401 | { |
9ea173e8 | 7402 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7403 | PROP (i) = Qnil; |
7404 | } | |
7405 | else | |
9ea173e8 GM |
7406 | tool_bar_item_properties |
7407 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
7408 | |
7409 | /* Set defaults. */ | |
9ea173e8 GM |
7410 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7411 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
7412 | |
7413 | /* Get the caption of the item. If the caption is not a string, | |
7414 | evaluate it to get a string. If we don't get a string, skip this | |
7415 | item. */ | |
7416 | caption = XCAR (item); | |
7417 | if (!STRINGP (caption)) | |
7418 | { | |
7419 | caption = menu_item_eval_property (caption); | |
7420 | if (!STRINGP (caption)) | |
7421 | return 0; | |
7422 | } | |
9ea173e8 | 7423 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7424 | |
7425 | /* Give up if rest following the caption is not a list. */ | |
7426 | item = XCDR (item); | |
7427 | if (!CONSP (item)) | |
7428 | return 0; | |
7429 | ||
7430 | /* Store the binding. */ | |
9ea173e8 | 7431 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7432 | item = XCDR (item); |
7433 | ||
8c907a56 GM |
7434 | /* Ignore cached key binding, if any. */ |
7435 | if (CONSP (item) && CONSP (XCAR (item))) | |
7436 | item = XCDR (item); | |
7437 | ||
7ee32cda GM |
7438 | /* Process the rest of the properties. */ |
7439 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7440 | { | |
7441 | Lisp_Object key, value; | |
7442 | ||
7443 | key = XCAR (item); | |
7444 | value = XCAR (XCDR (item)); | |
7445 | ||
7446 | if (EQ (key, QCenable)) | |
7447 | /* `:enable FORM'. */ | |
9ea173e8 | 7448 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7449 | else if (EQ (key, QCvisible)) |
7450 | { | |
7451 | /* `:visible FORM'. If got a visible property and that | |
7452 | evaluates to nil then ignore this item. */ | |
7453 | if (NILP (menu_item_eval_property (value))) | |
7454 | return 0; | |
7455 | } | |
7456 | else if (EQ (key, QChelp)) | |
7457 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7458 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7459 | else if (EQ (key, QCfilter)) |
7460 | /* ':filter FORM'. */ | |
7461 | filter = value; | |
7462 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7463 | { | |
7464 | /* `:button (TYPE . SELECTED)'. */ | |
7465 | Lisp_Object type, selected; | |
7466 | ||
7467 | type = XCAR (value); | |
7468 | selected = XCDR (value); | |
7469 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7470 | { | |
9ea173e8 GM |
7471 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7472 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7473 | } |
7474 | } | |
7475 | else if (EQ (key, QCimage) | |
7476 | && (CONSP (value) | |
7477 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7478 | /* Value is either a single image specification or a vector | |
27fd22dc | 7479 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7480 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7481 | } |
7482 | ||
7483 | /* If got a filter apply it on binding. */ | |
7484 | if (!NILP (filter)) | |
9ea173e8 | 7485 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7486 | = menu_item_eval_property (list2 (filter, |
7487 | list2 (Qquote, | |
9ea173e8 | 7488 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7489 | |
7490 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7491 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7492 | return 0; |
7493 | ||
7494 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7495 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7496 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7497 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
7498 | |
7499 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
7500 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7501 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7502 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7503 | |
7504 | return 1; | |
7505 | ||
7506 | #undef PROP | |
7507 | } | |
7508 | ||
7509 | ||
9ea173e8 GM |
7510 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7511 | that can be reused. */ | |
7ee32cda GM |
7512 | |
7513 | static void | |
9ea173e8 | 7514 | init_tool_bar_items (reuse) |
7ee32cda GM |
7515 | Lisp_Object reuse; |
7516 | { | |
7517 | if (VECTORP (reuse)) | |
9ea173e8 | 7518 | tool_bar_items_vector = reuse; |
7ee32cda | 7519 | else |
9ea173e8 GM |
7520 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7521 | ntool_bar_items = 0; | |
7ee32cda GM |
7522 | } |
7523 | ||
7524 | ||
9ea173e8 GM |
7525 | /* Append parsed tool bar item properties from |
7526 | tool_bar_item_properties */ | |
7ee32cda GM |
7527 | |
7528 | static void | |
9ea173e8 | 7529 | append_tool_bar_item () |
7ee32cda GM |
7530 | { |
7531 | Lisp_Object *to, *from; | |
7532 | ||
9ea173e8 GM |
7533 | /* Enlarge tool_bar_items_vector if necessary. */ |
7534 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7535 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7536 | { |
7537 | Lisp_Object new_vector; | |
9ea173e8 | 7538 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7539 | |
7540 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7541 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7542 | XVECTOR (new_vector)->contents, |
7543 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7544 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7545 | } |
7546 | ||
9ea173e8 GM |
7547 | /* Append entries from tool_bar_item_properties to the end of |
7548 | tool_bar_items_vector. */ | |
7549 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7550 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7551 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7552 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7553 | } |
7554 | ||
7555 | ||
7556 | ||
7557 | ||
e8886a1d | 7558 | \f |
dcc408a0 RS |
7559 | /* Read a character using menus based on maps in the array MAPS. |
7560 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7561 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7562 | |
7563 | PREV_EVENT is the previous input event, or nil if we are reading | |
7564 | the first event of a key sequence. | |
7565 | ||
83d68044 | 7566 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7567 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7568 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7569 | |
7570 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7571 | and the strings associated with various map elements. |
8150596a RS |
7572 | |
7573 | This can be done with X menus or with menus put in the minibuf. | |
7574 | These are done in different ways, depending on how the input will be read. | |
7575 | Menus using X are done after auto-saving in read-char, getting the input | |
7576 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7577 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7578 | |
7617111f | 7579 | static Lisp_Object |
8150596a | 7580 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7581 | int nmaps; |
7582 | Lisp_Object *maps; | |
7583 | Lisp_Object prev_event; | |
7584 | int *used_mouse_menu; | |
284f4730 | 7585 | { |
7d6de002 RS |
7586 | int mapno; |
7587 | register Lisp_Object name; | |
7d6de002 | 7588 | |
6569cc8d JB |
7589 | if (used_mouse_menu) |
7590 | *used_mouse_menu = 0; | |
284f4730 JB |
7591 | |
7592 | /* Use local over global Menu maps */ | |
7593 | ||
7d6de002 RS |
7594 | if (! menu_prompting) |
7595 | return Qnil; | |
7596 | ||
03361bcc RS |
7597 | /* Optionally disregard all but the global map. */ |
7598 | if (inhibit_local_menu_bar_menus) | |
7599 | { | |
7600 | maps += (nmaps - 1); | |
7601 | nmaps = 1; | |
7602 | } | |
7603 | ||
7d6de002 RS |
7604 | /* Get the menu name from the first map that has one (a prompt string). */ |
7605 | for (mapno = 0; mapno < nmaps; mapno++) | |
7606 | { | |
bdb7aa47 | 7607 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7608 | if (!NILP (name)) |
7609 | break; | |
7610 | } | |
284f4730 | 7611 | |
7d6de002 | 7612 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 7613 | if (!STRINGP (name)) |
7d6de002 RS |
7614 | return Qnil; |
7615 | ||
1f5b1641 | 7616 | #ifdef HAVE_MENUS |
7d6de002 RS |
7617 | /* If we got to this point via a mouse click, |
7618 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7619 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7620 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7621 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7622 | { |
7623 | /* Display the menu and get the selection. */ | |
7624 | Lisp_Object *realmaps | |
7625 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7626 | Lisp_Object value; | |
7627 | int nmaps1 = 0; | |
7628 | ||
7629 | /* Use the maps that are not nil. */ | |
7630 | for (mapno = 0; mapno < nmaps; mapno++) | |
7631 | if (!NILP (maps[mapno])) | |
7632 | realmaps[nmaps1++] = maps[mapno]; | |
7633 | ||
7634 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7635 | if (CONSP (value)) |
7636 | { | |
68f297c5 RS |
7637 | Lisp_Object tem; |
7638 | ||
7539e11f | 7639 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7640 | |
68f297c5 RS |
7641 | /* If we got multiple events, unread all but |
7642 | the first. | |
7643 | There is no way to prevent those unread events | |
7644 | from showing up later in last_nonmenu_event. | |
7645 | So turn symbol and integer events into lists, | |
7646 | to indicate that they came from a mouse menu, | |
7647 | so that when present in last_nonmenu_event | |
7648 | they won't confuse things. */ | |
f4e05d97 | 7649 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7650 | { |
7539e11f KR |
7651 | record_menu_key (XCAR (tem)); |
7652 | if (SYMBOLP (XCAR (tem)) | |
7653 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 7654 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 7655 | } |
68f297c5 | 7656 | |
663258f2 JB |
7657 | /* If we got more than one event, put all but the first |
7658 | onto this list to be read later. | |
7659 | Return just the first event now. */ | |
24597608 | 7660 | Vunread_command_events |
7539e11f KR |
7661 | = nconc2 (XCDR (value), Vunread_command_events); |
7662 | value = XCAR (value); | |
663258f2 | 7663 | } |
1c90c381 | 7664 | else if (NILP (value)) |
dcc408a0 | 7665 | value = Qt; |
6569cc8d JB |
7666 | if (used_mouse_menu) |
7667 | *used_mouse_menu = 1; | |
7d6de002 RS |
7668 | return value; |
7669 | } | |
1f5b1641 | 7670 | #endif /* HAVE_MENUS */ |
8150596a RS |
7671 | return Qnil ; |
7672 | } | |
7673 | ||
af2b7cc9 KS |
7674 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7675 | We make this bigger when necessary, and never free it. */ | |
7676 | static char *read_char_minibuf_menu_text; | |
7677 | /* Size of that buffer. */ | |
7678 | static int read_char_minibuf_menu_width; | |
7679 | ||
8150596a | 7680 | static Lisp_Object |
24597608 | 7681 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7682 | int commandflag ; |
7683 | int nmaps; | |
7684 | Lisp_Object *maps; | |
7685 | { | |
7686 | int mapno; | |
7687 | register Lisp_Object name; | |
af2b7cc9 KS |
7688 | int nlength; |
7689 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; | |
8150596a | 7690 | int idx = -1; |
af2b7cc9 | 7691 | int nobindings = 1; |
8150596a | 7692 | Lisp_Object rest, vector; |
af2b7cc9 | 7693 | char *menu; |
8150596a | 7694 | |
8c907a56 | 7695 | vector = Qnil; |
7189cad8 | 7696 | name = Qnil; |
8c907a56 | 7697 | |
8150596a RS |
7698 | if (! menu_prompting) |
7699 | return Qnil; | |
7700 | ||
af2b7cc9 KS |
7701 | /* Make sure we have a big enough buffer for the menu text. */ |
7702 | if (read_char_minibuf_menu_text == 0) | |
7703 | { | |
7704 | read_char_minibuf_menu_width = width + 4; | |
7705 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7706 | } | |
7707 | else if (width + 4 > read_char_minibuf_menu_width) | |
7708 | { | |
7709 | read_char_minibuf_menu_width = width + 4; | |
7710 | read_char_minibuf_menu_text | |
7711 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7712 | } | |
7713 | menu = read_char_minibuf_menu_text; | |
7714 | ||
8150596a RS |
7715 | /* Get the menu name from the first map that has one (a prompt string). */ |
7716 | for (mapno = 0; mapno < nmaps; mapno++) | |
7717 | { | |
bdb7aa47 | 7718 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
7719 | if (!NILP (name)) |
7720 | break; | |
7721 | } | |
7722 | ||
7723 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 7724 | if (!STRINGP (name)) |
8150596a | 7725 | return Qnil; |
284f4730 | 7726 | |
af2b7cc9 | 7727 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
7728 | strcpy (menu, SDATA (name)); |
7729 | nlength = SBYTES (name); | |
af2b7cc9 KS |
7730 | menu[nlength++] = ':'; |
7731 | menu[nlength++] = ' '; | |
7732 | menu[nlength] = 0; | |
7733 | ||
7d6de002 RS |
7734 | /* Start prompting at start of first map. */ |
7735 | mapno = 0; | |
7736 | rest = maps[mapno]; | |
284f4730 | 7737 | |
af2b7cc9 KS |
7738 | /* Present the documented bindings, a line at a time. */ |
7739 | while (1) | |
284f4730 | 7740 | { |
af2b7cc9 KS |
7741 | int notfirst = 0; |
7742 | int i = nlength; | |
7743 | Lisp_Object obj; | |
7744 | int ch; | |
7745 | Lisp_Object orig_defn_macro; | |
284f4730 | 7746 | |
af2b7cc9 KS |
7747 | /* Loop over elements of map. */ |
7748 | while (i < width) | |
284f4730 | 7749 | { |
af2b7cc9 | 7750 | Lisp_Object elt; |
284f4730 | 7751 | |
af2b7cc9 KS |
7752 | /* If reached end of map, start at beginning of next map. */ |
7753 | if (NILP (rest)) | |
7754 | { | |
7755 | mapno++; | |
7756 | /* At end of last map, wrap around to first map if just starting, | |
7757 | or end this line if already have something on it. */ | |
7758 | if (mapno == nmaps) | |
7759 | { | |
7760 | mapno = 0; | |
7761 | if (notfirst || nobindings) break; | |
7762 | } | |
7763 | rest = maps[mapno]; | |
7764 | } | |
7d6de002 | 7765 | |
af2b7cc9 KS |
7766 | /* Look at the next element of the map. */ |
7767 | if (idx >= 0) | |
7768 | elt = XVECTOR (vector)->contents[idx]; | |
7769 | else | |
7770 | elt = Fcar_safe (rest); | |
7d6de002 | 7771 | |
af2b7cc9 | 7772 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7773 | { |
af2b7cc9 KS |
7774 | /* If we found a dense table in the keymap, |
7775 | advanced past it, but start scanning its contents. */ | |
7776 | rest = Fcdr_safe (rest); | |
7777 | vector = elt; | |
7778 | idx = 0; | |
284f4730 | 7779 | } |
7d6de002 RS |
7780 | else |
7781 | { | |
af2b7cc9 KS |
7782 | /* An ordinary element. */ |
7783 | Lisp_Object event, tem; | |
7d6de002 | 7784 | |
af2b7cc9 KS |
7785 | if (idx < 0) |
7786 | { | |
7787 | event = Fcar_safe (elt); /* alist */ | |
7788 | elt = Fcdr_safe (elt); | |
7789 | } | |
7790 | else | |
7791 | { | |
7792 | XSETINT (event, idx); /* vector */ | |
7793 | } | |
284f4730 | 7794 | |
af2b7cc9 KS |
7795 | /* Ignore the element if it has no prompt string. */ |
7796 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
7797 | { | |
7798 | /* 1 if the char to type matches the string. */ | |
7799 | int char_matches; | |
7800 | Lisp_Object upcased_event, downcased_event; | |
7801 | Lisp_Object desc = Qnil; | |
7802 | Lisp_Object s | |
7803 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7804 | ||
7805 | upcased_event = Fupcase (event); | |
7806 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
7807 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
7808 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
7809 | if (! char_matches) |
7810 | desc = Fsingle_key_description (event, Qnil); | |
7811 | ||
7812 | #if 0 /* It is redundant to list the equivalent key bindings because | |
7813 | the prefix is what the user has already typed. */ | |
7814 | tem | |
7815 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7816 | if (!NILP (tem)) | |
7817 | /* Insert equivalent keybinding. */ | |
7818 | s = concat2 (s, tem); | |
7819 | #endif | |
7820 | tem | |
7821 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7822 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7823 | { | |
7824 | /* Insert button prefix. */ | |
7825 | Lisp_Object selected | |
7826 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7827 | if (EQ (tem, QCradio)) | |
7828 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7829 | else | |
7830 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7831 | s = concat2 (tem, s); | |
7832 | } | |
7833 | ||
7834 | ||
7835 | /* If we have room for the prompt string, add it to this line. | |
7836 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
7837 | if ((SCHARS (s) + i + 2 |
7838 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
7839 | < width |
7840 | || !notfirst) | |
7841 | { | |
7842 | int thiswidth; | |
7843 | ||
7844 | /* Punctuate between strings. */ | |
7845 | if (notfirst) | |
7846 | { | |
7847 | strcpy (menu + i, ", "); | |
7848 | i += 2; | |
7849 | } | |
7850 | notfirst = 1; | |
7851 | nobindings = 0 ; | |
7852 | ||
7853 | /* If the char to type doesn't match the string's | |
7854 | first char, explicitly show what char to type. */ | |
7855 | if (! char_matches) | |
7856 | { | |
7857 | /* Add as much of string as fits. */ | |
d5db4077 | 7858 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
7859 | if (thiswidth + i > width) |
7860 | thiswidth = width - i; | |
d5db4077 | 7861 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
7862 | i += thiswidth; |
7863 | strcpy (menu + i, " = "); | |
7864 | i += 3; | |
7865 | } | |
7866 | ||
7867 | /* Add as much of string as fits. */ | |
d5db4077 | 7868 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
7869 | if (thiswidth + i > width) |
7870 | thiswidth = width - i; | |
d5db4077 | 7871 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
7872 | i += thiswidth; |
7873 | menu[i] = 0; | |
7874 | } | |
7875 | else | |
7876 | { | |
7877 | /* If this element does not fit, end the line now, | |
7878 | and save the element for the next line. */ | |
7879 | strcpy (menu + i, "..."); | |
7880 | break; | |
7881 | } | |
7882 | } | |
7883 | ||
7884 | /* Move past this element. */ | |
7885 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
7886 | /* Handle reaching end of dense table. */ | |
7887 | idx = -1; | |
7888 | if (idx >= 0) | |
7889 | idx++; | |
7890 | else | |
7891 | rest = Fcdr_safe (rest); | |
7892 | } | |
325309f5 | 7893 | } |
8150596a | 7894 | |
af2b7cc9 KS |
7895 | /* Prompt with that and read response. */ |
7896 | message2_nolog (menu, strlen (menu), | |
7897 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 | 7898 | |
af2b7cc9 KS |
7899 | /* Make believe its not a keyboard macro in case the help char |
7900 | is pressed. Help characters are not recorded because menu prompting | |
7901 | is not used on replay. | |
7902 | */ | |
7903 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
7904 | current_kboard->defining_kbd_macro = Qnil; | |
7905 | do | |
7906 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
7907 | while (BUFFERP (obj)); | |
7908 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 7909 | |
af2b7cc9 KS |
7910 | if (!INTEGERP (obj)) |
7911 | return obj; | |
7912 | else | |
7913 | ch = XINT (obj); | |
7914 | ||
7915 | if (! EQ (obj, menu_prompt_more_char) | |
7916 | && (!INTEGERP (menu_prompt_more_char) | |
7917 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
7918 | { | |
7919 | if (!NILP (current_kboard->defining_kbd_macro)) | |
7920 | store_kbd_macro_char (obj); | |
7921 | return obj; | |
7922 | } | |
7923 | /* Help char - go round again */ | |
7924 | } | |
284f4730 | 7925 | } |
284f4730 JB |
7926 | \f |
7927 | /* Reading key sequences. */ | |
7928 | ||
7929 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7930 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7931 | keymap, or nil otherwise. Return the index of the first keymap in | |
7932 | which KEY has any binding, or NMAPS if no map has a binding. | |
7933 | ||
7934 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7935 | followed by the corresponding non-meta character. Keymaps in | |
7936 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7937 | NEXT. | |
7938 | ||
88cb0656 JB |
7939 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7940 | unmodified. | |
7941 | ||
569871d2 | 7942 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7943 | |
7944 | static int | |
4e50f26a | 7945 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7946 | Lisp_Object key; |
7947 | Lisp_Object *current, *defs, *next; | |
7948 | int nmaps; | |
7949 | { | |
7950 | int i, first_binding; | |
569871d2 | 7951 | int did_meta = 0; |
284f4730 | 7952 | |
284f4730 JB |
7953 | first_binding = nmaps; |
7954 | for (i = nmaps - 1; i >= 0; i--) | |
7955 | { | |
7956 | if (! NILP (current[i])) | |
7957 | { | |
569871d2 RS |
7958 | Lisp_Object map; |
7959 | if (did_meta) | |
7960 | map = defs[i]; | |
7961 | else | |
7962 | map = current[i]; | |
7963 | ||
db785038 | 7964 | defs[i] = access_keymap (map, key, 1, 0, 1); |
284f4730 JB |
7965 | if (! NILP (defs[i])) |
7966 | first_binding = i; | |
7967 | } | |
7968 | else | |
7969 | defs[i] = Qnil; | |
7970 | } | |
7971 | ||
284f4730 | 7972 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7973 | if (first_binding < nmaps) |
7974 | for (i = 0; i < nmaps; i++) | |
02067692 | 7975 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
7976 | |
7977 | return first_binding; | |
7978 | } | |
7979 | ||
df0f2ba1 | 7980 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7981 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7982 | Prompt with PROMPT. | |
284f4730 | 7983 | Return the length of the key sequence stored. |
dcc408a0 | 7984 | Return -1 if the user rejected a command menu. |
284f4730 | 7985 | |
f4255cd1 JB |
7986 | Echo starting immediately unless `prompt' is 0. |
7987 | ||
7988 | Where a key sequence ends depends on the currently active keymaps. | |
7989 | These include any minor mode keymaps active in the current buffer, | |
7990 | the current buffer's local map, and the global map. | |
7991 | ||
7992 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7993 | to see if some trailing subsequence might be the beginning of a | |
7994 | function key's sequence. If so, we try to read the whole function | |
7995 | key, and substitute its symbolic name into the key sequence. | |
7996 | ||
fbcd35bd JB |
7997 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7998 | `double-' events into similar click events, if that would make them | |
7999 | bound. We try to turn `triple-' events first into `double-' events, | |
8000 | then into clicks. | |
f4255cd1 JB |
8001 | |
8002 | If we get a mouse click in a mode line, vertical divider, or other | |
8003 | non-text area, we treat the click as if it were prefixed by the | |
8004 | symbol denoting that area - `mode-line', `vertical-line', or | |
8005 | whatever. | |
8006 | ||
8007 | If the sequence starts with a mouse click, we read the key sequence | |
8008 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8009 | |
f4255cd1 JB |
8010 | If the user switches frames in the midst of a key sequence, we put |
8011 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8012 | read_char will return it. |
8013 | ||
8014 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8015 | from the selected window's buffer. */ | |
48e416d4 | 8016 | |
284f4730 | 8017 | static int |
ce98e608 | 8018 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8019 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8020 | Lisp_Object *keybuf; |
8021 | int bufsize; | |
84d91fda | 8022 | Lisp_Object prompt; |
309b0fc8 | 8023 | int dont_downcase_last; |
ce98e608 | 8024 | int can_return_switch_frame; |
f571ae0d | 8025 | int fix_current_buffer; |
284f4730 | 8026 | { |
db14cfc5 | 8027 | volatile Lisp_Object from_string; |
aed13378 | 8028 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8029 | |
284f4730 | 8030 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8031 | volatile int t; |
284f4730 | 8032 | |
284f4730 JB |
8033 | /* The length of the echo buffer when we started reading, and |
8034 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8035 | volatile int echo_start; |
8036 | volatile int keys_start; | |
284f4730 JB |
8037 | |
8038 | /* The number of keymaps we're scanning right now, and the number of | |
8039 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8040 | volatile int nmaps; |
8041 | volatile int nmaps_allocated = 0; | |
284f4730 | 8042 | |
284f4730 JB |
8043 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8044 | the current keymaps. */ | |
8c907a56 | 8045 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8046 | |
f4255cd1 JB |
8047 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8048 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8049 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8050 | |
e0dff5f6 | 8051 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8052 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8053 | |
30690496 DL |
8054 | /* The map from the `keymap' property to start out with at start of |
8055 | key sequence. */ | |
8c907a56 | 8056 | volatile Lisp_Object orig_keymap; |
30690496 | 8057 | |
e0dff5f6 RS |
8058 | /* 1 if we have already considered switching to the local-map property |
8059 | of the place where a mouse click occurred. */ | |
8c907a56 | 8060 | volatile int localized_local_map = 0; |
e0dff5f6 | 8061 | |
f4255cd1 JB |
8062 | /* The index in defs[] of the first keymap that has a binding for |
8063 | this key sequence. In other words, the lowest i such that | |
8064 | defs[i] is non-nil. */ | |
8c907a56 | 8065 | volatile int first_binding; |
7189cad8 SM |
8066 | /* Index of the first key that has no binding. |
8067 | It is useless to try fkey_start larger than that. */ | |
8068 | volatile int first_unbound; | |
284f4730 | 8069 | |
f4255cd1 | 8070 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8071 | input key. |
8072 | ||
8073 | We use this to recover after recognizing a function key. Once we | |
8074 | realize that a suffix of the current key sequence is actually a | |
8075 | function key's escape sequence, we replace the suffix with the | |
8076 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8077 | contains a new and different key sequence, so the echo area, |
8078 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8079 | this situation, we set mock_input to t, set t to 0, and jump to | |
8080 | restart_sequence; the loop will read keys from keybuf up until | |
8081 | mock_input, thus rebuilding the state; and then it will resume | |
8082 | reading characters from the keyboard. */ | |
8c907a56 | 8083 | volatile int mock_input = 0; |
284f4730 | 8084 | |
253598e4 | 8085 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
8086 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
8087 | and fkey_map is its binding. | |
253598e4 | 8088 | |
f4255cd1 JB |
8089 | These might be > t, indicating that all function key scanning |
8090 | should hold off until t reaches them. We do this when we've just | |
8091 | recognized a function key, to avoid searching for the function | |
8092 | key's again in Vfunction_key_map. */ | |
8c907a56 GM |
8093 | volatile int fkey_start = 0, fkey_end = 0; |
8094 | volatile Lisp_Object fkey_map; | |
284f4730 | 8095 | |
a612e298 | 8096 | /* Likewise, for key_translation_map. */ |
8c907a56 GM |
8097 | volatile int keytran_start = 0, keytran_end = 0; |
8098 | volatile Lisp_Object keytran_map; | |
a612e298 | 8099 | |
cd21b839 JB |
8100 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
8101 | we put it off for later. While we're reading, we keep the event here. */ | |
8c907a56 | 8102 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8103 | |
51763820 BF |
8104 | /* See the comment below... */ |
8105 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8106 | Lisp_Object first_event; |
51763820 | 8107 | #endif |
4efda7dd | 8108 | |
8c907a56 GM |
8109 | volatile Lisp_Object original_uppercase; |
8110 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8111 | |
bc536d84 | 8112 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8113 | int dummyflag = 0; |
bc536d84 | 8114 | |
3b9189f8 RS |
8115 | struct buffer *starting_buffer; |
8116 | ||
2dc00208 GM |
8117 | /* List of events for which a fake prefix key has been generated. */ |
8118 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8119 | ||
03cee6ae | 8120 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8121 | int junk; |
03cee6ae | 8122 | #endif |
4efda7dd | 8123 | |
2dc00208 GM |
8124 | struct gcpro gcpro1; |
8125 | ||
8126 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8127 | raw_keybuf_count = 0; |
8128 | ||
4efda7dd RS |
8129 | last_nonmenu_event = Qnil; |
8130 | ||
8131 | delayed_switch_frame = Qnil; | |
8132 | fkey_map = Vfunction_key_map; | |
a612e298 | 8133 | keytran_map = Vkey_translation_map; |
f4255cd1 | 8134 | |
a612e298 | 8135 | /* If there is no function-key-map, turn off function key scanning. */ |
02067692 | 8136 | if (!KEYMAPP (Vfunction_key_map)) |
f4255cd1 JB |
8137 | fkey_start = fkey_end = bufsize + 1; |
8138 | ||
a612e298 | 8139 | /* If there is no key-translation-map, turn off scanning. */ |
02067692 | 8140 | if (!KEYMAPP (Vkey_translation_map)) |
a612e298 RS |
8141 | keytran_start = keytran_end = bufsize + 1; |
8142 | ||
284f4730 JB |
8143 | if (INTERACTIVE) |
8144 | { | |
84d91fda | 8145 | if (!NILP (prompt)) |
a4ef85ee | 8146 | echo_prompt (prompt); |
f2647d04 DL |
8147 | else if (cursor_in_echo_area |
8148 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8149 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8150 | /* This doesn't put in a dash if the echo buffer is empty, so |
8151 | you don't always see a dash hanging out in the minibuffer. */ | |
8152 | echo_dash (); | |
284f4730 JB |
8153 | } |
8154 | ||
f4255cd1 JB |
8155 | /* Record the initial state of the echo area and this_command_keys; |
8156 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8157 | if (INTERACTIVE) |
df0f2ba1 | 8158 | echo_start = echo_length (); |
f4255cd1 | 8159 | keys_start = this_command_key_count; |
6321824f | 8160 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8161 | |
51763820 BF |
8162 | #if defined (GOBBLE_FIRST_EVENT) |
8163 | /* This doesn't quite work, because some of the things that read_char | |
8164 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8165 | this work right. */ |
51763820 | 8166 | |
4efda7dd RS |
8167 | /* Read the first char of the sequence specially, before setting |
8168 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8169 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8170 | &junk); |
51763820 | 8171 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8172 | |
24a40fbb GM |
8173 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8174 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8175 | from_string = Qnil; |
e0dff5f6 | 8176 | |
7b4aedb9 JB |
8177 | /* We jump here when the key sequence has been thoroughly changed, and |
8178 | we need to rescan it starting from the beginning. When we jump here, | |
8179 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8180 | replay_sequence: |
7b4aedb9 | 8181 | |
3b9189f8 | 8182 | starting_buffer = current_buffer; |
7189cad8 | 8183 | first_unbound = bufsize + 1; |
3b9189f8 | 8184 | |
f4255cd1 | 8185 | /* Build our list of keymaps. |
07d2b8de JB |
8186 | If we recognize a function key and replace its escape sequence in |
8187 | keybuf with its symbol, or if the sequence starts with a mouse | |
8188 | click and we need to switch buffers, we jump back here to rebuild | |
8189 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8190 | nmaps = 0; |
284f4730 | 8191 | |
4cbedc16 RS |
8192 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8193 | || !NILP (Voverriding_local_map)) | |
8194 | { | |
8195 | if (3 > nmaps_allocated) | |
8196 | { | |
8197 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8198 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8199 | nmaps_allocated = 3; | |
8200 | } | |
8201 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8202 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8203 | if (!NILP (Voverriding_local_map)) | |
8204 | submaps[nmaps++] = Voverriding_local_map; | |
8205 | } | |
8206 | else | |
8207 | { | |
4cbedc16 RS |
8208 | int nminor; |
8209 | int total; | |
8210 | Lisp_Object *maps; | |
8211 | ||
8212 | nminor = current_minor_maps (0, &maps); | |
8213 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8214 | ||
8215 | if (total > nmaps_allocated) | |
8216 | { | |
8217 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8218 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8219 | nmaps_allocated = total; | |
8220 | } | |
8221 | ||
8222 | if (!NILP (orig_keymap)) | |
8223 | submaps[nmaps++] = orig_keymap; | |
8224 | ||
7d1c4866 | 8225 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8226 | nminor * sizeof (submaps[0])); |
8227 | ||
8228 | nmaps += nminor; | |
8229 | ||
8230 | submaps[nmaps++] = orig_local_map; | |
8231 | } | |
8232 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8233 | |
8234 | /* Find an accurate initial value for first_binding. */ | |
8235 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8236 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8237 | break; |
8238 | ||
3b9189f8 | 8239 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8240 | t = 0; |
8241 | ||
8242 | /* These are no-ops the first time through, but if we restart, they | |
8243 | revert the echo area and this_command_keys to their original state. */ | |
8244 | this_command_key_count = keys_start; | |
df0f2ba1 | 8245 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8246 | echo_truncate (echo_start); |
8247 | ||
cca310da JB |
8248 | /* If the best binding for the current key sequence is a keymap, or |
8249 | we may be looking at a function key's escape sequence, keep on | |
8250 | reading. */ | |
253598e4 | 8251 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
65e0fbbf SM |
8252 | || (first_binding >= nmaps && fkey_start < t) |
8253 | || (first_binding >= nmaps && keytran_start < t) | |
e9bf89a0 RS |
8254 | /* Don't return in the middle of a possible function key sequence, |
8255 | if the only bindings we found were via case conversion. | |
8256 | Thus, if ESC O a has a function-key-map translation | |
8257 | and ESC o has a binding, don't return after ESC O, | |
8258 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 8259 | ) |
284f4730 JB |
8260 | { |
8261 | Lisp_Object key; | |
7d6de002 | 8262 | int used_mouse_menu = 0; |
284f4730 | 8263 | |
7b4aedb9 JB |
8264 | /* Where the last real key started. If we need to throw away a |
8265 | key that has expanded into more than one element of keybuf | |
8266 | (say, a mouse click on the mode line which is being treated | |
8267 | as [mode-line (mouse-...)], then we backtrack to this point | |
8268 | of keybuf. */ | |
8c907a56 | 8269 | volatile int last_real_key_start; |
7b4aedb9 | 8270 | |
0a7f1fc0 JB |
8271 | /* These variables are analogous to echo_start and keys_start; |
8272 | while those allow us to restart the entire key sequence, | |
8273 | echo_local_start and keys_local_start allow us to throw away | |
8274 | just one key. */ | |
8c907a56 | 8275 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8276 | |
2cf4b7b2 SM |
8277 | /* key-translation-map is applied *after* function-key-map. */ |
8278 | eassert (keytran_end <= fkey_start); | |
7189cad8 SM |
8279 | |
8280 | if (first_unbound < fkey_start && first_unbound < keytran_start) | |
8281 | { /* The prefix upto first_unbound has no binding and has | |
8282 | no translation left to do either, so we know it's unbound. | |
8283 | If we don't stop now, we risk staying here indefinitely | |
8284 | (if the user keeps entering fkey or keytran prefixes | |
8285 | like C-c ESC ESC ESC ESC ...) */ | |
8286 | int i; | |
8287 | for (i = first_unbound + 1; i < t; i++) | |
8288 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8289 | mock_input = t - first_unbound - 1; | |
8290 | fkey_end = fkey_start -= first_unbound + 1; | |
8291 | fkey_map = Vfunction_key_map; | |
8292 | keytran_end = keytran_start -= first_unbound + 1; | |
8293 | keytran_map = Vkey_translation_map; | |
8294 | goto replay_sequence; | |
8295 | } | |
8296 | ||
284f4730 | 8297 | if (t >= bufsize) |
3fe8e9a2 | 8298 | error ("Key sequence too long"); |
284f4730 | 8299 | |
f4255cd1 JB |
8300 | if (INTERACTIVE) |
8301 | echo_local_start = echo_length (); | |
8302 | keys_local_start = this_command_key_count; | |
8303 | local_first_binding = first_binding; | |
df0f2ba1 | 8304 | |
f4255cd1 | 8305 | replay_key: |
0a7f1fc0 | 8306 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8307 | jumped back up to replay_key; in that case, these restore the |
8308 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8309 | loop. */ |
40932d1a | 8310 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8311 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8312 | this_command_key_count = keys_local_start; |
8313 | first_binding = local_first_binding; | |
8314 | ||
7e85b935 RS |
8315 | /* By default, assume each event is "real". */ |
8316 | last_real_key_start = t; | |
8317 | ||
f4255cd1 | 8318 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8319 | if (t < mock_input) |
8320 | { | |
8321 | key = keybuf[t]; | |
8322 | add_command_key (key); | |
f2647d04 DL |
8323 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8324 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8325 | echo_char (key); |
284f4730 | 8326 | } |
253598e4 JB |
8327 | |
8328 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8329 | else |
8330 | { | |
beecf6a1 | 8331 | { |
c5fdd383 KH |
8332 | #ifdef MULTI_KBOARD |
8333 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8334 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8335 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8336 | { |
5798cf15 KH |
8337 | if (!NILP (delayed_switch_frame)) |
8338 | { | |
c5fdd383 | 8339 | interrupted_kboard->kbd_queue |
5798cf15 | 8340 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8341 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8342 | delayed_switch_frame = Qnil; |
8343 | } | |
beecf6a1 | 8344 | while (t > 0) |
c5fdd383 KH |
8345 | interrupted_kboard->kbd_queue |
8346 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8347 | |
8348 | /* If the side queue is non-empty, ensure it begins with a | |
8349 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8350 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8351 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8352 | !(EVENT_HAS_PARAMETERS (key) |
8353 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8354 | Qswitch_frame)))) | |
df0f2ba1 KH |
8355 | { |
8356 | Lisp_Object frame; | |
8357 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8358 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8359 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8360 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8361 | } |
beecf6a1 | 8362 | mock_input = 0; |
24a40fbb GM |
8363 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8364 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8365 | goto replay_sequence; |
8366 | } | |
bded54dd | 8367 | #endif |
8c907a56 GM |
8368 | key = read_char (NILP (prompt), nmaps, |
8369 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8370 | &used_mouse_menu); |
8371 | } | |
284f4730 | 8372 | |
dcc408a0 RS |
8373 | /* read_char returns t when it shows a menu and the user rejects it. |
8374 | Just return -1. */ | |
8375 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8376 | { |
8377 | unbind_to (count, Qnil); | |
2dc00208 | 8378 | UNGCPRO; |
7d18f9ae RS |
8379 | return -1; |
8380 | } | |
dcc408a0 | 8381 | |
f4255cd1 | 8382 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8383 | Emacs 18 handles this by returning immediately with a |
8384 | zero, so that's what we'll do. */ | |
8c18cbfb | 8385 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8386 | { |
f4255cd1 | 8387 | t = 0; |
bc536d84 RS |
8388 | /* The Microsoft C compiler can't handle the goto that |
8389 | would go here. */ | |
309b0fc8 | 8390 | dummyflag = 1; |
bc536d84 | 8391 | break; |
cd21b839 | 8392 | } |
df0f2ba1 | 8393 | |
3cb81011 KH |
8394 | /* If the current buffer has been changed from under us, the |
8395 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8396 | if (BUFFERP (key)) |
3cb81011 | 8397 | { |
e431fcda DL |
8398 | EMACS_TIME initial_idleness_start_time; |
8399 | EMACS_SET_SECS_USECS (initial_idleness_start_time, | |
8400 | EMACS_SECS (timer_last_idleness_start_time), | |
8401 | EMACS_USECS (timer_last_idleness_start_time)); | |
3021d3a9 RS |
8402 | |
8403 | /* Resume idle state, using the same start-time as before. */ | |
8404 | timer_start_idle (); | |
8405 | timer_idleness_start_time = initial_idleness_start_time; | |
8406 | ||
3cb81011 | 8407 | mock_input = t; |
f571ae0d RS |
8408 | /* Reset the current buffer from the selected window |
8409 | in case something changed the former and not the latter. | |
8410 | This is to be more consistent with the behavior | |
8411 | of the command_loop_1. */ | |
8412 | if (fix_current_buffer) | |
a94a4335 | 8413 | { |
788f89eb | 8414 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8415 | Fkill_emacs (Qnil); |
8416 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8417 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8418 | } | |
f571ae0d | 8419 | |
24a40fbb GM |
8420 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8421 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8422 | goto replay_sequence; |
8423 | } | |
8424 | ||
3b9189f8 RS |
8425 | /* If we have a quit that was typed in another frame, and |
8426 | quit_throw_to_read_char switched buffers, | |
8427 | replay to get the right keymap. */ | |
f4e05d97 GM |
8428 | if (INTEGERP (key) |
8429 | && XINT (key) == quit_char | |
8430 | && current_buffer != starting_buffer) | |
3b9189f8 | 8431 | { |
7d18f9ae RS |
8432 | GROW_RAW_KEYBUF; |
8433 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8434 | keybuf[t++] = key; |
8435 | mock_input = t; | |
8436 | Vquit_flag = Qnil; | |
24a40fbb GM |
8437 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8438 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8439 | goto replay_sequence; |
8440 | } | |
3cb81011 | 8441 | |
284f4730 | 8442 | Vquit_flag = Qnil; |
7d18f9ae RS |
8443 | |
8444 | if (EVENT_HAS_PARAMETERS (key) | |
8445 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
8446 | { | |
8447 | /* If we're at the beginning of a key sequence, and the caller | |
8448 | says it's okay, go ahead and return this event. If we're | |
8449 | in the midst of a key sequence, delay it until the end. */ | |
8450 | if (t > 0 || !can_return_switch_frame) | |
8451 | { | |
8452 | delayed_switch_frame = key; | |
8453 | goto replay_key; | |
8454 | } | |
8455 | } | |
8456 | ||
8457 | GROW_RAW_KEYBUF; | |
8458 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8459 | } |
284f4730 | 8460 | |
df0f2ba1 | 8461 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8462 | in their CHAR-ADDRESS field. For example, a click on |
8463 | the mode line is prefixed by the symbol `mode-line'. | |
8464 | ||
8465 | Furthermore, key sequences beginning with mouse clicks | |
8466 | are read using the keymaps of the buffer clicked on, not | |
8467 | the current buffer. So we may have to switch the buffer | |
8468 | here. | |
8469 | ||
8470 | When we turn one event into two events, we must make sure | |
8471 | that neither of the two looks like the original--so that, | |
8472 | if we replay the events, they won't be expanded again. | |
8473 | If not for this, such reexpansion could happen either here | |
8474 | or when user programs play with this-command-keys. */ | |
8475 | if (EVENT_HAS_PARAMETERS (key)) | |
8476 | { | |
9b8eb840 | 8477 | Lisp_Object kind; |
cca310da | 8478 | |
9b8eb840 | 8479 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8480 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8481 | { |
9b8eb840 | 8482 | Lisp_Object window, posn; |
f4255cd1 | 8483 | |
9b8eb840 KH |
8484 | window = POSN_WINDOW (EVENT_START (key)); |
8485 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8486 | |
2cf066c3 GM |
8487 | if (CONSP (posn) |
8488 | || (!NILP (fake_prefixed_keys) | |
8489 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8490 | { |
2cf066c3 GM |
8491 | /* We're looking a second time at an event for which |
8492 | we generated a fake prefix key. Set | |
7e85b935 RS |
8493 | last_real_key_start appropriately. */ |
8494 | if (t > 0) | |
8495 | last_real_key_start = t - 1; | |
cd21b839 | 8496 | } |
7e85b935 RS |
8497 | |
8498 | /* Key sequences beginning with mouse clicks are | |
8499 | read using the keymaps in the buffer clicked on, | |
8500 | not the current buffer. If we're at the | |
8501 | beginning of a key sequence, switch buffers. */ | |
8502 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8503 | && WINDOWP (window) |
8504 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8505 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8506 | { |
7d18f9ae | 8507 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8508 | keybuf[t] = key; |
8509 | mock_input = t + 1; | |
8510 | ||
8511 | /* Arrange to go back to the original buffer once we're | |
8512 | done reading the key sequence. Note that we can't | |
8513 | use save_excursion_{save,restore} here, because they | |
8514 | save point as well as the current buffer; we don't | |
8515 | want to save point, because redisplay may change it, | |
8516 | to accommodate a Fset_window_start or something. We | |
8517 | don't want to do this at the top of the function, | |
8518 | because we may get input from a subprocess which | |
8519 | wants to change the selected window and stuff (say, | |
8520 | emacsclient). */ | |
8521 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8522 | ||
788f89eb | 8523 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8524 | Fkill_emacs (Qnil); |
24a40fbb | 8525 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8526 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8527 | Qlocal_map); |
8528 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8529 | goto replay_sequence; |
0a7f1fc0 | 8530 | } |
7ee32cda | 8531 | |
e0dff5f6 RS |
8532 | /* For a mouse click, get the local text-property keymap |
8533 | of the place clicked on, rather than point. */ | |
7ee32cda | 8534 | if (last_real_key_start == 0 |
7539e11f | 8535 | && CONSP (XCDR (key)) |
e0dff5f6 | 8536 | && ! localized_local_map) |
5ec75a55 | 8537 | { |
e0dff5f6 RS |
8538 | Lisp_Object map_here, start, pos; |
8539 | ||
8540 | localized_local_map = 1; | |
8541 | start = EVENT_START (key); | |
7ee32cda | 8542 | |
7539e11f | 8543 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8544 | { |
8545 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8546 | if (INTEGERP (pos) |
8547 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8548 | { |
30690496 | 8549 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8550 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8551 | if (!EQ (map_here, orig_local_map)) |
8552 | { | |
8553 | orig_local_map = map_here; | |
8554 | keybuf[t] = key; | |
8555 | mock_input = t + 1; | |
5ec75a55 | 8556 | |
30690496 DL |
8557 | goto replay_sequence; |
8558 | } | |
8559 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8560 | current_buffer, Qkeymap); |
30690496 DL |
8561 | if (!EQ (map_here, orig_keymap)) |
8562 | { | |
8563 | orig_keymap = map_here; | |
8564 | keybuf[t] = key; | |
8565 | mock_input = t + 1; | |
8566 | ||
e0dff5f6 RS |
8567 | goto replay_sequence; |
8568 | } | |
8569 | } | |
8570 | } | |
8571 | } | |
8572 | ||
8573 | /* Expand mode-line and scroll-bar events into two events: | |
8574 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8575 | if (SYMBOLP (posn) |
8576 | && (NILP (fake_prefixed_keys) | |
8577 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8578 | { |
7e85b935 | 8579 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8580 | error ("Key sequence too long"); |
7ee32cda | 8581 | |
2dc00208 GM |
8582 | keybuf[t] = posn; |
8583 | keybuf[t + 1] = key; | |
8584 | mock_input = t + 2; | |
8585 | ||
8586 | /* Record that a fake prefix key has been generated | |
8587 | for KEY. Don't modify the event; this would | |
8588 | prevent proper action when the event is pushed | |
c7f4f573 | 8589 | back into unread-command-events. */ |
2dc00208 | 8590 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
8591 | |
8592 | /* If on a mode line string with a local keymap, | |
8593 | reconsider the key sequence with that keymap. */ | |
8594 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8595 | { | |
30690496 | 8596 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8597 | |
8598 | string = POSN_STRING (EVENT_START (key)); | |
8599 | pos = XCDR (string); | |
8600 | string = XCAR (string); | |
52e386c2 | 8601 | if (XINT (pos) >= 0 |
d5db4077 | 8602 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
8603 | { |
8604 | map = Fget_text_property (pos, Qlocal_map, string); | |
8605 | if (!NILP (map)) | |
8606 | orig_local_map = map; | |
8607 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8608 | if (!NILP (map2)) | |
8609 | orig_keymap = map2; | |
8610 | if (!NILP (map) || !NILP (map2)) | |
8611 | goto replay_sequence; | |
8612 | } | |
7ee32cda GM |
8613 | } |
8614 | ||
7e85b935 | 8615 | goto replay_key; |
5ec75a55 | 8616 | } |
db14cfc5 GM |
8617 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8618 | && NILP (from_string)) | |
8619 | { | |
8620 | /* For a click on a string, i.e. overlay string or a | |
8621 | string displayed via the `display' property, | |
8622 | consider `local-map' and `keymap' properties of | |
8623 | that string. */ | |
8624 | Lisp_Object string, pos, map, map2; | |
8625 | ||
8626 | string = POSN_STRING (EVENT_START (key)); | |
8627 | pos = XCDR (string); | |
8628 | string = XCAR (string); | |
8629 | if (XINT (pos) >= 0 | |
d5db4077 | 8630 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
8631 | { |
8632 | map = Fget_text_property (pos, Qlocal_map, string); | |
8633 | if (!NILP (map)) | |
8634 | orig_local_map = map; | |
8635 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8636 | if (!NILP (map2)) | |
8637 | orig_keymap = map2; | |
8638 | ||
8639 | if (!NILP (map) || !NILP (map2)) | |
8640 | { | |
8641 | from_string = string; | |
8642 | goto replay_sequence; | |
8643 | } | |
8644 | } | |
8645 | } | |
0a7f1fc0 | 8646 | } |
7539e11f | 8647 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8648 | && CONSP (EVENT_START (key)) |
7539e11f | 8649 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8650 | { |
9b8eb840 | 8651 | Lisp_Object posn; |
7e85b935 | 8652 | |
9b8eb840 | 8653 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8654 | /* Handle menu-bar events: |
8655 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8656 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8657 | { |
8658 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8659 | error ("Key sequence too long"); |
7e85b935 RS |
8660 | keybuf[t] = posn; |
8661 | keybuf[t+1] = key; | |
8662 | ||
8663 | /* Zap the position in key, so we know that we've | |
8664 | expanded it, and don't try to do so again. */ | |
f3fbd155 KR |
8665 | POSN_BUFFER_SET_POSN (EVENT_START (key), |
8666 | Fcons (posn, Qnil)); | |
7e85b935 RS |
8667 | |
8668 | mock_input = t + 2; | |
8669 | goto replay_sequence; | |
8670 | } | |
8c18cbfb | 8671 | else if (CONSP (posn)) |
7e85b935 RS |
8672 | { |
8673 | /* We're looking at the second event of a | |
8674 | sequence which we expanded before. Set | |
8675 | last_real_key_start appropriately. */ | |
8676 | if (last_real_key_start == t && t > 0) | |
8677 | last_real_key_start = t - 1; | |
8678 | } | |
a6d53864 | 8679 | } |
284f4730 | 8680 | } |
f4255cd1 JB |
8681 | |
8682 | /* We have finally decided that KEY is something we might want | |
8683 | to look up. */ | |
284f4730 JB |
8684 | first_binding = (follow_key (key, |
8685 | nmaps - first_binding, | |
253598e4 | 8686 | submaps + first_binding, |
284f4730 | 8687 | defs + first_binding, |
4e50f26a | 8688 | submaps + first_binding) |
284f4730 | 8689 | + first_binding); |
0a7f1fc0 | 8690 | |
f4255cd1 | 8691 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
8692 | if (first_binding < nmaps) |
8693 | /* This is needed for the following scenario: | |
8694 | event 0: a down-event that gets dropped by calling replay_key. | |
8695 | event 1: some normal prefix like C-h. | |
8696 | After event 0, first_unbound is 0, after event 1 fkey_start | |
8697 | and keytran_start are both 1, so when we see that C-h is bound, | |
8698 | we need to update first_unbound. */ | |
8699 | first_unbound = max (t + 1, first_unbound); | |
8700 | else | |
0a7f1fc0 | 8701 | { |
9b8eb840 | 8702 | Lisp_Object head; |
7189cad8 SM |
8703 | |
8704 | /* Remember the position to put an upper bound on fkey_start. */ | |
8705 | first_unbound = min (t, first_unbound); | |
0a7f1fc0 | 8706 | |
9b8eb840 | 8707 | head = EVENT_HEAD (key); |
24736fbc | 8708 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
8709 | { |
8710 | read_key_sequence_cmd = Vprefix_help_command; | |
8711 | keybuf[t++] = key; | |
8712 | last_nonmenu_event = key; | |
bc536d84 RS |
8713 | /* The Microsoft C compiler can't handle the goto that |
8714 | would go here. */ | |
309b0fc8 | 8715 | dummyflag = 1; |
0d882d52 | 8716 | break; |
7e85b935 RS |
8717 | } |
8718 | ||
8c18cbfb | 8719 | if (SYMBOLP (head)) |
0a7f1fc0 | 8720 | { |
9b8eb840 KH |
8721 | Lisp_Object breakdown; |
8722 | int modifiers; | |
0a7f1fc0 | 8723 | |
9b8eb840 | 8724 | breakdown = parse_modifiers (head); |
7539e11f | 8725 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
8726 | /* Attempt to reduce an unbound mouse event to a simpler |
8727 | event that is bound: | |
8728 | Drags reduce to clicks. | |
8729 | Double-clicks reduce to clicks. | |
8730 | Triple-clicks reduce to double-clicks, then to clicks. | |
8731 | Down-clicks are eliminated. | |
8732 | Double-downs reduce to downs, then are eliminated. | |
8733 | Triple-downs reduce to double-downs, then to downs, | |
8734 | then are eliminated. */ | |
8735 | if (modifiers & (down_modifier | drag_modifier | |
8736 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 8737 | { |
559f9d04 RS |
8738 | while (modifiers & (down_modifier | drag_modifier |
8739 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
8740 | { |
8741 | Lisp_Object new_head, new_click; | |
8742 | if (modifiers & triple_modifier) | |
8743 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
8744 | else if (modifiers & double_modifier) |
8745 | modifiers &= ~double_modifier; | |
8746 | else if (modifiers & drag_modifier) | |
8747 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
8748 | else |
8749 | { | |
8750 | /* Dispose of this `down' event by simply jumping | |
8751 | back to replay_key, to get another event. | |
8752 | ||
8753 | Note that if this event came from mock input, | |
8754 | then just jumping back to replay_key will just | |
8755 | hand it to us again. So we have to wipe out any | |
8756 | mock input. | |
8757 | ||
8758 | We could delete keybuf[t] and shift everything | |
8759 | after that to the left by one spot, but we'd also | |
8760 | have to fix up any variable that points into | |
8761 | keybuf, and shifting isn't really necessary | |
8762 | anyway. | |
8763 | ||
8764 | Adding prefixes for non-textual mouse clicks | |
8765 | creates two characters of mock input, and both | |
8766 | must be thrown away. If we're only looking at | |
8767 | the prefix now, we can just jump back to | |
8768 | replay_key. On the other hand, if we've already | |
8769 | processed the prefix, and now the actual click | |
8770 | itself is giving us trouble, then we've lost the | |
8771 | state of the keymaps we want to backtrack to, and | |
8772 | we need to replay the whole sequence to rebuild | |
8773 | it. | |
8774 | ||
8775 | Beyond that, only function key expansion could | |
8776 | create more than two keys, but that should never | |
8777 | generate mouse events, so it's okay to zero | |
8778 | mock_input in that case too. | |
8779 | ||
65e0fbbf SM |
8780 | FIXME: The above paragraph seems just plain |
8781 | wrong, if you consider things like | |
8782 | xterm-mouse-mode. -stef | |
8783 | ||
559f9d04 RS |
8784 | Isn't this just the most wonderful code ever? */ |
8785 | if (t == last_real_key_start) | |
8786 | { | |
8787 | mock_input = 0; | |
8788 | goto replay_key; | |
8789 | } | |
8790 | else | |
8791 | { | |
8792 | mock_input = last_real_key_start; | |
8793 | goto replay_sequence; | |
8794 | } | |
8795 | } | |
8796 | ||
27203ead | 8797 | new_head |
7539e11f | 8798 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
8799 | new_click |
8800 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
8801 | |
8802 | /* Look for a binding for this new key. follow_key | |
8803 | promises that it didn't munge submaps the | |
8804 | last time we called it, since key was unbound. */ | |
27203ead RS |
8805 | first_binding |
8806 | = (follow_key (new_click, | |
8807 | nmaps - local_first_binding, | |
8808 | submaps + local_first_binding, | |
8809 | defs + local_first_binding, | |
4e50f26a | 8810 | submaps + local_first_binding) |
27203ead | 8811 | + local_first_binding); |
fbcd35bd JB |
8812 | |
8813 | /* If that click is bound, go for it. */ | |
8814 | if (first_binding < nmaps) | |
8815 | { | |
8816 | key = new_click; | |
8817 | break; | |
8818 | } | |
8819 | /* Otherwise, we'll leave key set to the drag event. */ | |
8820 | } | |
0a7f1fc0 JB |
8821 | } |
8822 | } | |
8823 | } | |
8824 | ||
284f4730 | 8825 | keybuf[t++] = key; |
7d6de002 RS |
8826 | /* Normally, last_nonmenu_event gets the previous key we read. |
8827 | But when a mouse popup menu is being used, | |
8828 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8829 | event that preceded the first level of menu. */ | |
8830 | if (!used_mouse_menu) | |
8831 | last_nonmenu_event = key; | |
284f4730 | 8832 | |
6321824f RS |
8833 | /* Record what part of this_command_keys is the current key sequence. */ |
8834 | this_single_command_key_start = this_command_key_count - t; | |
8835 | ||
65e0fbbf SM |
8836 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
8837 | /* There is a binding and it's not a prefix. | |
8838 | There is thus no function-key in this sequence. | |
8839 | Moving fkey.start is important in this case to allow keytran.start | |
8840 | to go over the sequence before we return (since we keep the | |
8841 | invariant that keytran.end <= fkey.start). */ | |
8842 | { | |
8843 | if (fkey_start < t) | |
8844 | (fkey_start = fkey_end = t, fkey_map = Vfunction_key_map); | |
8845 | } | |
8846 | else | |
8847 | /* If the sequence is unbound, see if we can hang a function key | |
8848 | off the end of it. */ | |
284f4730 JB |
8849 | { |
8850 | Lisp_Object fkey_next; | |
8851 | ||
e9bf89a0 | 8852 | /* Continue scan from fkey_end until we find a bound suffix. |
65e0fbbf | 8853 | If we fail, increment fkey_start and start over from there. */ |
284f4730 JB |
8854 | while (fkey_end < t) |
8855 | { | |
f4255cd1 JB |
8856 | Lisp_Object key; |
8857 | ||
8858 | key = keybuf[fkey_end++]; | |
65e0fbbf | 8859 | fkey_next = access_keymap (fkey_map, key, 1, 0, 1); |
c700c260 RS |
8860 | |
8861 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8862 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8863 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 8864 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
8865 | do_autoload (XSYMBOL (fkey_next)->function, |
8866 | fkey_next); | |
c700c260 RS |
8867 | |
8868 | /* Handle a symbol whose function definition is a keymap | |
8869 | or an array. */ | |
0afc861b RS |
8870 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8871 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
02067692 | 8872 | || KEYMAPP (XSYMBOL (fkey_next)->function))) |
0afc861b | 8873 | fkey_next = XSYMBOL (fkey_next)->function; |
067ffa38 | 8874 | |
7a80a6f6 RS |
8875 | #if 0 /* I didn't turn this on, because it might cause trouble |
8876 | for the mapping of return into C-m and tab into C-i. */ | |
8877 | /* Optionally don't map function keys into other things. | |
8878 | This enables the user to redefine kp- keys easily. */ | |
8879 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8880 | fkey_next = Qnil; | |
8881 | #endif | |
8882 | ||
1abe6abe RS |
8883 | /* If the function key map gives a function, not an |
8884 | array, then call the function with no args and use | |
8885 | its value instead. */ | |
8886 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
65e0fbbf SM |
8887 | /* If there's a binding (i.e. first_binding >= nmaps) |
8888 | we don't want to apply this function-key-mapping. */ | |
8889 | && fkey_end == t && first_binding >= nmaps) | |
1abe6abe RS |
8890 | { |
8891 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8892 | Lisp_Object tem; | |
8893 | tem = fkey_next; | |
8894 | ||
8895 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8896 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8897 | UNGCPRO; |
8898 | /* If the function returned something invalid, | |
8899 | barf--don't ignore it. | |
df0f2ba1 | 8900 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8901 | other variables.) */ |
8902 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8903 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8904 | } |
8905 | ||
85bc5181 | 8906 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8907 | function key map and it's a suffix of the current |
85bc5181 | 8908 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8909 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8910 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
65e0fbbf SM |
8911 | /* If there's a binding (i.e. first_binding >= nmaps) |
8912 | we don't want to apply this function-key-mapping. */ | |
8913 | && fkey_end == t && first_binding >= nmaps) | |
284f4730 | 8914 | { |
2e864a76 | 8915 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8916 | |
8917 | t = fkey_start + len; | |
284f4730 | 8918 | if (t >= bufsize) |
3fe8e9a2 | 8919 | error ("Key sequence too long"); |
284f4730 | 8920 | |
f5ea6163 JB |
8921 | if (VECTORP (fkey_next)) |
8922 | bcopy (XVECTOR (fkey_next)->contents, | |
8923 | keybuf + fkey_start, | |
8924 | (t - fkey_start) * sizeof (keybuf[0])); | |
8925 | else if (STRINGP (fkey_next)) | |
8926 | { | |
8927 | int i; | |
8928 | ||
8929 | for (i = 0; i < len; i++) | |
bb9e9bed | 8930 | XSETFASTINT (keybuf[fkey_start + i], |
d5db4077 | 8931 | SREF (fkey_next, i)); |
f5ea6163 | 8932 | } |
df0f2ba1 | 8933 | |
284f4730 JB |
8934 | mock_input = t; |
8935 | fkey_start = fkey_end = t; | |
32e6d806 | 8936 | fkey_map = Vfunction_key_map; |
284f4730 | 8937 | |
3bd0dffb KH |
8938 | /* Do pass the results through key-translation-map. |
8939 | But don't retranslate what key-translation-map | |
8940 | has already translated. */ | |
8941 | keytran_end = keytran_start; | |
00a78037 RS |
8942 | keytran_map = Vkey_translation_map; |
8943 | ||
f4255cd1 | 8944 | goto replay_sequence; |
284f4730 | 8945 | } |
df0f2ba1 | 8946 | |
02067692 | 8947 | fkey_map = get_keymap (fkey_next, 0, 1); |
284f4730 | 8948 | |
df0f2ba1 | 8949 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8950 | fkey_start. */ |
02067692 | 8951 | if (!CONSP (fkey_map)) |
284f4730 JB |
8952 | { |
8953 | fkey_end = ++fkey_start; | |
8954 | fkey_map = Vfunction_key_map; | |
8955 | } | |
8956 | } | |
8957 | } | |
a612e298 RS |
8958 | |
8959 | /* Look for this sequence in key-translation-map. */ | |
8960 | { | |
8961 | Lisp_Object keytran_next; | |
8962 | ||
8963 | /* Scan from keytran_end until we find a bound suffix. */ | |
2cf4b7b2 | 8964 | while (keytran_end < fkey_start) |
a612e298 RS |
8965 | { |
8966 | Lisp_Object key; | |
8967 | ||
8968 | key = keybuf[keytran_end++]; | |
a612e298 | 8969 | keytran_next |
db785038 | 8970 | = access_keymap (keytran_map, key, 1, 0, 1); |
a612e298 | 8971 | |
c700c260 | 8972 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8973 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8974 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8975 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8976 | do_autoload (XSYMBOL (keytran_next)->function, |
8977 | keytran_next); | |
8978 | ||
c700c260 RS |
8979 | /* Handle a symbol whose function definition is a keymap |
8980 | or an array. */ | |
e83f6bb0 | 8981 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 | 8982 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
02067692 | 8983 | || KEYMAPP (XSYMBOL (keytran_next)->function))) |
e83f6bb0 RS |
8984 | keytran_next = XSYMBOL (keytran_next)->function; |
8985 | ||
1abe6abe | 8986 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8987 | array, then call the function with one arg and use |
1abe6abe | 8988 | its value instead. */ |
2cf4b7b2 | 8989 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next))) |
1abe6abe RS |
8990 | { |
8991 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8992 | Lisp_Object tem; | |
8993 | tem = keytran_next; | |
8994 | ||
40932d1a | 8995 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8996 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8997 | UNGCPRO; |
8998 | /* If the function returned something invalid, | |
8999 | barf--don't ignore it. | |
df0f2ba1 | 9000 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
9001 | other variables.) */ |
9002 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 9003 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
9004 | } |
9005 | ||
a612e298 | 9006 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 9007 | key translation map and it's a suffix of the current |
a612e298 RS |
9008 | sequence (i.e. keytran_end == t), replace it with |
9009 | the binding and restart with keytran_start at the end. */ | |
2cf4b7b2 | 9010 | if ((VECTORP (keytran_next) || STRINGP (keytran_next))) |
a612e298 | 9011 | { |
2e864a76 | 9012 | int len = XFASTINT (Flength (keytran_next)); |
2cf4b7b2 | 9013 | int i, diff = len - (keytran_end - keytran_start); |
a612e298 | 9014 | |
2cf4b7b2 SM |
9015 | mock_input = max (t, mock_input); |
9016 | if (mock_input + diff >= bufsize) | |
3fe8e9a2 | 9017 | error ("Key sequence too long"); |
a612e298 | 9018 | |
2cf4b7b2 SM |
9019 | /* Shift the keys that are after keytran_end. */ |
9020 | if (diff < 0) | |
9021 | for (i = keytran_end; i < mock_input; i++) | |
9022 | keybuf[i + diff] = keybuf[i]; | |
9023 | else if (diff > 0) | |
9024 | for (i = mock_input - 1; i >= keytran_end; i--) | |
9025 | keybuf[i + diff] = keybuf[i]; | |
9026 | /* Replace the keys between keytran_start and keytran_end | |
9027 | with those from keytran_next. */ | |
9028 | for (i = 0; i < len; i++) | |
9029 | keybuf[keytran_start + i] | |
9030 | = Faref (keytran_next, make_number (i)); | |
9031 | ||
9032 | mock_input += diff; | |
9033 | keytran_start = keytran_end += diff; | |
a612e298 RS |
9034 | keytran_map = Vkey_translation_map; |
9035 | ||
2cf4b7b2 SM |
9036 | /* Adjust the function-key-map counters. */ |
9037 | fkey_start += diff; | |
9038 | fkey_end += diff; | |
00a78037 | 9039 | |
a612e298 RS |
9040 | goto replay_sequence; |
9041 | } | |
9042 | ||
02067692 | 9043 | keytran_map = get_keymap (keytran_next, 0, 1); |
a612e298 | 9044 | |
df0f2ba1 | 9045 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 | 9046 | keytran_start. */ |
02067692 | 9047 | if (!CONSP (keytran_map)) |
a612e298 RS |
9048 | { |
9049 | keytran_end = ++keytran_start; | |
9050 | keytran_map = Vkey_translation_map; | |
9051 | } | |
9052 | } | |
9053 | } | |
4e50f26a RS |
9054 | |
9055 | /* If KEY is not defined in any of the keymaps, | |
9056 | and cannot be part of a function key or translation, | |
9057 | and is an upper case letter | |
9058 | use the corresponding lower-case letter instead. */ | |
65e0fbbf SM |
9059 | if (first_binding >= nmaps |
9060 | && fkey_start >= t && keytran_start >= t | |
8c18cbfb | 9061 | && INTEGERP (key) |
4e50f26a | 9062 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9063 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9064 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9065 | || (XINT (key) & shift_modifier))) | |
9066 | { | |
569871d2 | 9067 | Lisp_Object new_key; |
569871d2 | 9068 | |
309b0fc8 RS |
9069 | original_uppercase = key; |
9070 | original_uppercase_position = t - 1; | |
9071 | ||
831f35a2 | 9072 | if (XINT (key) & shift_modifier) |
569871d2 | 9073 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9074 | else |
569871d2 RS |
9075 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9076 | | (XINT (key) & ~0x3ffff))); | |
9077 | ||
3fe8e9a2 RS |
9078 | /* We have to do this unconditionally, regardless of whether |
9079 | the lower-case char is defined in the keymaps, because they | |
9080 | might get translated through function-key-map. */ | |
9081 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9082 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9083 | |
9084 | goto replay_sequence; | |
4e50f26a | 9085 | } |
ef8fd672 RS |
9086 | /* If KEY is not defined in any of the keymaps, |
9087 | and cannot be part of a function key or translation, | |
9088 | and is a shifted function key, | |
9089 | use the corresponding unshifted function key instead. */ | |
65e0fbbf SM |
9090 | if (first_binding >= nmaps |
9091 | && fkey_start >= t && keytran_start >= t | |
ef8fd672 RS |
9092 | && SYMBOLP (key)) |
9093 | { | |
9094 | Lisp_Object breakdown; | |
9095 | int modifiers; | |
9096 | ||
9097 | breakdown = parse_modifiers (key); | |
7539e11f | 9098 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9099 | if (modifiers & shift_modifier) |
9100 | { | |
569871d2 | 9101 | Lisp_Object new_key; |
3fe8e9a2 RS |
9102 | |
9103 | original_uppercase = key; | |
9104 | original_uppercase_position = t - 1; | |
ef8fd672 | 9105 | |
569871d2 RS |
9106 | modifiers &= ~shift_modifier; |
9107 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9108 | XCAR (breakdown)); |
569871d2 | 9109 | |
3fe8e9a2 | 9110 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9111 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9112 | |
9113 | goto replay_sequence; | |
ef8fd672 RS |
9114 | } |
9115 | } | |
284f4730 JB |
9116 | } |
9117 | ||
309b0fc8 | 9118 | if (!dummyflag) |
bc536d84 RS |
9119 | read_key_sequence_cmd = (first_binding < nmaps |
9120 | ? defs[first_binding] | |
9121 | : Qnil); | |
284f4730 | 9122 | |
cd21b839 | 9123 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9124 | unbind_to (count, Qnil); |
07f76a14 | 9125 | |
3fe8e9a2 RS |
9126 | /* Don't downcase the last character if the caller says don't. |
9127 | Don't downcase it if the result is undefined, either. */ | |
9128 | if ((dont_downcase_last || first_binding >= nmaps) | |
9129 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9130 | keybuf[t - 1] = original_uppercase; |
9131 | ||
07f76a14 JB |
9132 | /* Occasionally we fabricate events, perhaps by expanding something |
9133 | according to function-key-map, or by adding a prefix symbol to a | |
9134 | mouse click in the scroll bar or modeline. In this cases, return | |
9135 | the entire generated key sequence, even if we hit an unbound | |
9136 | prefix or a definition before the end. This means that you will | |
9137 | be able to push back the event properly, and also means that | |
9138 | read-key-sequence will always return a logical unit. | |
9139 | ||
9140 | Better ideas? */ | |
cca310da JB |
9141 | for (; t < mock_input; t++) |
9142 | { | |
f2647d04 DL |
9143 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9144 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9145 | echo_char (keybuf[t]); |
cca310da JB |
9146 | add_command_key (keybuf[t]); |
9147 | } | |
07f76a14 | 9148 | |
7d18f9ae RS |
9149 | |
9150 | ||
2dc00208 | 9151 | UNGCPRO; |
284f4730 JB |
9152 | return t; |
9153 | } | |
9154 | ||
d5eecefb | 9155 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9156 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9157 | The sequence is sufficient to specify a non-prefix command in the | |
9158 | current local and global maps. | |
9159 | ||
9160 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9161 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9162 | as a continuation of the previous key. | |
9163 | ||
9164 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9165 | convert the last event to lower case. (Normally any upper case event | |
9166 | is converted to lower case if the original event is undefined and the lower | |
9167 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9168 | a key sequence to be defined. | |
9169 | ||
9170 | A C-g typed while in this function is treated like any other character, | |
9171 | and `quit-flag' is not set. | |
9172 | ||
9173 | If the key sequence starts with a mouse click, then the sequence is read | |
9174 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9175 | of the selected window as normal. | |
9176 | ||
9177 | `read-key-sequence' drops unbound button-down events, since you normally | |
9178 | only care about the click or drag events which follow them. If a drag | |
9179 | or multi-click event is unbound, but the corresponding click event would | |
9180 | be bound, `read-key-sequence' turns the event into a click event at the | |
9181 | drag's starting position. This means that you don't have to distinguish | |
9182 | between click and drag, double, or triple events unless you want to. | |
9183 | ||
9184 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9185 | lines separating windows, and scroll bars with imaginary keys | |
9186 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9187 | ||
9188 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9189 | function will process a switch-frame event if the user switches frames | |
9190 | before typing anything. If the user switches frames in the middle of a | |
9191 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9192 | is nil, then the event will be put off until after the current key sequence. | |
9193 | ||
9194 | `read-key-sequence' checks `function-key-map' for function key | |
9195 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9196 | `function-key-map' for more details. | |
9197 | ||
9198 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9199 | that this key sequence is being read by something that will | |
9200 | read commands one after another. It should be nil if the caller | |
9201 | will read just one key sequence. */) | |
d5eecefb RS |
9202 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9203 | command_loop) | |
309b0fc8 | 9204 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9205 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9206 | { |
9207 | Lisp_Object keybuf[30]; | |
9208 | register int i; | |
03cee6ae | 9209 | struct gcpro gcpro1; |
aed13378 | 9210 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9211 | |
9212 | if (!NILP (prompt)) | |
b7826503 | 9213 | CHECK_STRING (prompt); |
284f4730 JB |
9214 | QUIT; |
9215 | ||
d5eecefb RS |
9216 | specbind (Qinput_method_exit_on_first_char, |
9217 | (NILP (command_loop) ? Qt : Qnil)); | |
9218 | specbind (Qinput_method_use_echo_area, | |
9219 | (NILP (command_loop) ? Qt : Qnil)); | |
9220 | ||
284f4730 JB |
9221 | bzero (keybuf, sizeof keybuf); |
9222 | GCPRO1 (keybuf[0]); | |
9223 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9224 | ||
daa37602 | 9225 | if (NILP (continue_echo)) |
6321824f RS |
9226 | { |
9227 | this_command_key_count = 0; | |
9228 | this_single_command_key_start = 0; | |
9229 | } | |
c0a58692 | 9230 | |
d0c48478 | 9231 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9232 | if (display_hourglass_p) |
9233 | cancel_hourglass (); | |
d0c48478 GM |
9234 | #endif |
9235 | ||
309b0fc8 | 9236 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9237 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9238 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9239 | |
ae18aa3b | 9240 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9241 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9242 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9243 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9244 | if (display_hourglass_p) |
9245 | start_hourglass (); | |
ae18aa3b | 9246 | #endif |
d0c48478 GM |
9247 | #endif |
9248 | ||
dcc408a0 RS |
9249 | if (i == -1) |
9250 | { | |
9251 | Vquit_flag = Qt; | |
9252 | QUIT; | |
9253 | } | |
284f4730 | 9254 | UNGCPRO; |
d5eecefb | 9255 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9256 | } |
e39da3d7 RS |
9257 | |
9258 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9259 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9260 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9261 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9262 | command_loop) | |
e39da3d7 | 9263 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9264 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9265 | { |
9266 | Lisp_Object keybuf[30]; | |
9267 | register int i; | |
03cee6ae | 9268 | struct gcpro gcpro1; |
aed13378 | 9269 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9270 | |
9271 | if (!NILP (prompt)) | |
b7826503 | 9272 | CHECK_STRING (prompt); |
e39da3d7 RS |
9273 | QUIT; |
9274 | ||
d5eecefb RS |
9275 | specbind (Qinput_method_exit_on_first_char, |
9276 | (NILP (command_loop) ? Qt : Qnil)); | |
9277 | specbind (Qinput_method_use_echo_area, | |
9278 | (NILP (command_loop) ? Qt : Qnil)); | |
9279 | ||
e39da3d7 RS |
9280 | bzero (keybuf, sizeof keybuf); |
9281 | GCPRO1 (keybuf[0]); | |
9282 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9283 | ||
9284 | if (NILP (continue_echo)) | |
9285 | { | |
9286 | this_command_key_count = 0; | |
9287 | this_single_command_key_start = 0; | |
9288 | } | |
9289 | ||
d0c48478 | 9290 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9291 | if (display_hourglass_p) |
9292 | cancel_hourglass (); | |
d0c48478 GM |
9293 | #endif |
9294 | ||
e39da3d7 RS |
9295 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9296 | prompt, ! NILP (dont_downcase_last), | |
9297 | ! NILP (can_return_switch_frame), 0); | |
9298 | ||
d0c48478 | 9299 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9300 | if (display_hourglass_p) |
9301 | start_hourglass (); | |
d0c48478 GM |
9302 | #endif |
9303 | ||
e39da3d7 RS |
9304 | if (i == -1) |
9305 | { | |
9306 | Vquit_flag = Qt; | |
9307 | QUIT; | |
9308 | } | |
9309 | UNGCPRO; | |
d5eecefb | 9310 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9311 | } |
284f4730 | 9312 | \f |
158f7532 | 9313 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9314 | doc: /* Execute CMD as an editor command. |
9315 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9316 | Optional second arg RECORD-FLAG non-nil | |
9317 | means unconditionally put this command in `command-history'. | |
9318 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9319 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9320 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9321 | The argument SPECIAL, if non-nil, means that this command is executing | |
9322 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9323 | (cmd, record_flag, keys, special) |
9324 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9325 | { |
9326 | register Lisp_Object final; | |
9327 | register Lisp_Object tem; | |
9328 | Lisp_Object prefixarg; | |
9329 | struct backtrace backtrace; | |
9330 | extern int debug_on_next_call; | |
9331 | ||
284f4730 JB |
9332 | debug_on_next_call = 0; |
9333 | ||
158f7532 RS |
9334 | if (NILP (special)) |
9335 | { | |
9336 | prefixarg = current_kboard->Vprefix_arg; | |
9337 | Vcurrent_prefix_arg = prefixarg; | |
9338 | current_kboard->Vprefix_arg = Qnil; | |
9339 | } | |
9340 | else | |
9341 | prefixarg = Qnil; | |
9342 | ||
8c18cbfb | 9343 | if (SYMBOLP (cmd)) |
284f4730 JB |
9344 | { |
9345 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9346 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9347 | { |
9348 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9349 | if (!NILP (tem)) | |
9350 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9351 | } | |
284f4730 JB |
9352 | } |
9353 | ||
01e26217 | 9354 | while (1) |
284f4730 | 9355 | { |
ffd56f97 | 9356 | final = Findirect_function (cmd); |
284f4730 JB |
9357 | |
9358 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9359 | { |
9360 | struct gcpro gcpro1, gcpro2; | |
9361 | ||
9362 | GCPRO2 (cmd, prefixarg); | |
9363 | do_autoload (final, cmd); | |
9364 | UNGCPRO; | |
9365 | } | |
284f4730 JB |
9366 | else |
9367 | break; | |
9368 | } | |
9369 | ||
8c18cbfb | 9370 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9371 | { |
9372 | /* If requested, place the macro in the command history. For | |
9373 | other sorts of commands, call-interactively takes care of | |
9374 | this. */ | |
e57d8fd8 | 9375 | if (!NILP (record_flag)) |
f4385381 RS |
9376 | { |
9377 | Vcommand_history | |
9378 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9379 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9380 | Vcommand_history); | |
9381 | ||
9382 | /* Don't keep command history around forever. */ | |
9383 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9384 | { | |
9385 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9386 | if (CONSP (tem)) | |
f3fbd155 | 9387 | XSETCDR (tem, Qnil); |
f4385381 RS |
9388 | } |
9389 | } | |
284f4730 JB |
9390 | |
9391 | return Fexecute_kbd_macro (final, prefixarg); | |
9392 | } | |
f4385381 | 9393 | |
8c18cbfb | 9394 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9395 | { |
9396 | backtrace.next = backtrace_list; | |
9397 | backtrace_list = &backtrace; | |
9398 | backtrace.function = &Qcall_interactively; | |
9399 | backtrace.args = &cmd; | |
9400 | backtrace.nargs = 1; | |
9401 | backtrace.evalargs = 0; | |
9402 | ||
e57d8fd8 | 9403 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9404 | |
9405 | backtrace_list = backtrace.next; | |
9406 | return tem; | |
9407 | } | |
9408 | return Qnil; | |
9409 | } | |
c970a760 GM |
9410 | |
9411 | ||
284f4730 | 9412 | \f |
284f4730 | 9413 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9414 | 1, 1, "P", |
9415 | doc: /* Read function name, then read its arguments and call it. */) | |
9416 | (prefixarg) | |
284f4730 JB |
9417 | Lisp_Object prefixarg; |
9418 | { | |
9419 | Lisp_Object function; | |
9420 | char buf[40]; | |
2e1a49ad SM |
9421 | int saved_last_point_position; |
9422 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9423 | Lisp_Object bindings, value; |
2e1a49ad | 9424 | struct gcpro gcpro1, gcpro2, gcpro3; |
284f4730 | 9425 | |
b0f2a7bf KH |
9426 | saved_keys = Fvector (this_command_key_count, |
9427 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9428 | saved_last_point_position_buffer = last_point_position_buffer; |
9429 | saved_last_point_position = last_point_position; | |
284f4730 | 9430 | buf[0] = 0; |
2e1a49ad | 9431 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9432 | |
9433 | if (EQ (prefixarg, Qminus)) | |
9434 | strcpy (buf, "- "); | |
7539e11f | 9435 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9436 | strcpy (buf, "C-u "); |
7539e11f | 9437 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9438 | { |
9439 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9440 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9441 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9442 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9443 | else |
9444 | abort (); | |
9445 | } | |
8c18cbfb | 9446 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9447 | { |
9448 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9449 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9450 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9451 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9452 | else |
9453 | abort (); | |
9454 | } | |
284f4730 JB |
9455 | |
9456 | /* This isn't strictly correct if execute-extended-command | |
9457 | is bound to anything else. Perhaps it should use | |
9458 | this_command_keys? */ | |
9459 | strcat (buf, "M-x "); | |
9460 | ||
9461 | /* Prompt with buf, and then read a string, completing from and | |
9462 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9463 | any initial input. Save the command read on the extended-command |
03b4122a | 9464 | history list. */ |
284f4730 JB |
9465 | function = Fcompleting_read (build_string (buf), |
9466 | Vobarray, Qcommandp, | |
4328577a KH |
9467 | Qt, Qnil, Qextended_command_history, Qnil, |
9468 | Qnil); | |
284f4730 | 9469 | |
d5db4077 | 9470 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9471 | error ("No command name given"); |
9472 | ||
1113d9db JB |
9473 | /* Set this_command_keys to the concatenation of saved_keys and |
9474 | function, followed by a RET. */ | |
284f4730 | 9475 | { |
b0f2a7bf | 9476 | Lisp_Object *keys; |
284f4730 | 9477 | int i; |
284f4730 | 9478 | |
1113d9db | 9479 | this_command_key_count = 0; |
6321824f | 9480 | this_single_command_key_start = 0; |
1113d9db | 9481 | |
b0f2a7bf KH |
9482 | keys = XVECTOR (saved_keys)->contents; |
9483 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9484 | add_command_key (keys[i]); | |
1113d9db | 9485 | |
1b049b51 | 9486 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9487 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9488 | |
301738ed | 9489 | add_command_key (make_number ('\015')); |
284f4730 JB |
9490 | } |
9491 | ||
2e1a49ad SM |
9492 | last_point_position = saved_last_point_position; |
9493 | last_point_position_buffer = saved_last_point_position_buffer; | |
9494 | ||
284f4730 JB |
9495 | UNGCPRO; |
9496 | ||
0a7f1fc0 | 9497 | function = Fintern (function, Qnil); |
d8bcf58e | 9498 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9499 | Vthis_command = function; |
9500 | real_this_command = function; | |
284f4730 | 9501 | |
6526ab49 RS |
9502 | /* If enabled, show which key runs this command. */ |
9503 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9504 | && NILP (Vexecuting_macro) |
6526ab49 | 9505 | && SYMBOLP (function)) |
5434fce6 | 9506 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9507 | Qt, Qnil, Qnil); |
5434fce6 RS |
9508 | else |
9509 | bindings = Qnil; | |
6526ab49 | 9510 | |
5434fce6 RS |
9511 | value = Qnil; |
9512 | GCPRO2 (bindings, value); | |
9513 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9514 | |
5434fce6 | 9515 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9516 | if (!NILP (bindings) |
ee112567 KH |
9517 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9518 | Qmouse_movement))) | |
5434fce6 RS |
9519 | { |
9520 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9521 | int delay_time; |
985f9f66 | 9522 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9523 | /* This command displayed something in the echo area; |
9524 | so wait a few seconds, then display our suggestion message. */ | |
9525 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9526 | ? XINT (Vsuggest_key_bindings) : 2); | |
9527 | else | |
9528 | /* This command left the echo area empty, | |
9529 | so display our message immediately. */ | |
9530 | delay_time = 0; | |
9531 | ||
9532 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9533 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9534 | { |
5434fce6 RS |
9535 | Lisp_Object binding; |
9536 | char *newmessage; | |
985f9f66 | 9537 | int message_p = push_message (); |
331379bf | 9538 | int count = SPECPDL_INDEX (); |
5434fce6 | 9539 | |
c970a760 | 9540 | record_unwind_protect (push_message_unwind, Qnil); |
5434fce6 RS |
9541 | binding = Fkey_description (bindings); |
9542 | ||
9543 | newmessage | |
d5db4077 KR |
9544 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
9545 | + SBYTES (binding) | |
5434fce6 | 9546 | + 100); |
3ababa60 | 9547 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
9548 | SDATA (SYMBOL_NAME (function)), |
9549 | SDATA (binding)); | |
301738ed RS |
9550 | message2_nolog (newmessage, |
9551 | strlen (newmessage), | |
9552 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9553 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9554 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9555 | Qnil, Qnil)) |
9556 | && message_p) | |
9557 | restore_message (); | |
9558 | ||
c970a760 | 9559 | unbind_to (count, Qnil); |
6526ab49 RS |
9560 | } |
9561 | } | |
9562 | ||
5434fce6 | 9563 | RETURN_UNGCPRO (value); |
284f4730 | 9564 | } |
6526ab49 | 9565 | |
284f4730 | 9566 | \f |
d9d4c147 | 9567 | /* Return nonzero if input events are pending. */ |
284f4730 | 9568 | |
dfcf069d | 9569 | int |
284f4730 JB |
9570 | detect_input_pending () |
9571 | { | |
9572 | if (!input_pending) | |
d9d4c147 KH |
9573 | get_input_pending (&input_pending, 0); |
9574 | ||
9575 | return input_pending; | |
9576 | } | |
9577 | ||
b1878f45 | 9578 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9579 | |
dfcf069d | 9580 | int |
87dd9b9b RS |
9581 | detect_input_pending_run_timers (do_display) |
9582 | int do_display; | |
d9d4c147 | 9583 | { |
87dd9b9b RS |
9584 | int old_timers_run = timers_run; |
9585 | ||
d9d4c147 KH |
9586 | if (!input_pending) |
9587 | get_input_pending (&input_pending, 1); | |
284f4730 | 9588 | |
87dd9b9b | 9589 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9590 | { |
3007ebfb | 9591 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9592 | /* The following fixes a bug when using lazy-lock with |
9593 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9594 | from an idle timer function. The symptom of the bug is that | |
9595 | the cursor sometimes doesn't become visible until the next X | |
9596 | event is processed. --gerd. */ | |
9597 | if (rif) | |
9598 | rif->flush_display (NULL); | |
9599 | } | |
87dd9b9b | 9600 | |
284f4730 JB |
9601 | return input_pending; |
9602 | } | |
9603 | ||
ffd56f97 JB |
9604 | /* This is called in some cases before a possible quit. |
9605 | It cases the next call to detect_input_pending to recompute input_pending. | |
9606 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9607 | |
9608 | void | |
ffd56f97 JB |
9609 | clear_input_pending () |
9610 | { | |
9611 | input_pending = 0; | |
9612 | } | |
9613 | ||
b1878f45 RS |
9614 | /* Return nonzero if there are pending requeued events. |
9615 | This isn't used yet. The hope is to make wait_reading_process_input | |
27fd22dc | 9616 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9617 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9618 | to do in that case. It isn't trivial. */ | |
9619 | ||
dfcf069d | 9620 | int |
b1878f45 RS |
9621 | requeued_events_pending_p () |
9622 | { | |
9623 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9624 | } | |
9625 | ||
9626 | ||
284f4730 | 9627 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9628 | doc: /* Return t if command input is currently available with no wait. |
9629 | Actually, the value is nil only if we can be sure that no input is available; | |
9630 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9631 | () |
284f4730 | 9632 | { |
24597608 | 9633 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9634 | return (Qt); |
9635 | ||
20057d52 | 9636 | get_filtered_input_pending (&input_pending, 1, 1); |
d9d4c147 | 9637 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
9638 | } |
9639 | ||
9640 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
9641 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
9642 | () | |
284f4730 | 9643 | { |
5160df46 | 9644 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9645 | Lisp_Object val; |
9646 | ||
9647 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9648 | return Fvector (total_keys, keys); |
284f4730 JB |
9649 | else |
9650 | { | |
5160df46 JB |
9651 | val = Fvector (NUM_RECENT_KEYS, keys); |
9652 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9653 | XVECTOR (val)->contents, |
9654 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9655 | bcopy (keys, |
284f4730 JB |
9656 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9657 | recent_keys_index * sizeof (Lisp_Object)); | |
9658 | return val; | |
9659 | } | |
9660 | } | |
9661 | ||
9662 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 9663 | doc: /* Return the key sequence that invoked this command. |
92501652 | 9664 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 9665 | the last key sequence that has been read. |
4707d2d0 PJ |
9666 | The value is a string or a vector. */) |
9667 | () | |
284f4730 | 9668 | { |
86e5706b RS |
9669 | return make_event_array (this_command_key_count, |
9670 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9671 | } |
9672 | ||
e39da3d7 | 9673 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
9674 | doc: /* Return the key sequence that invoked this command, as a vector. |
9675 | However, if the command has called `read-key-sequence', it returns | |
4052e7bb | 9676 | the last key sequence that has been read. */) |
4707d2d0 | 9677 | () |
e39da3d7 RS |
9678 | { |
9679 | return Fvector (this_command_key_count, | |
9680 | XVECTOR (this_command_keys)->contents); | |
9681 | } | |
9682 | ||
6321824f RS |
9683 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9684 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 9685 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
9686 | More generally, it returns the last key sequence read, either by |
9687 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9688 | Unlike `this-command-keys', this function's value |
9689 | does not include prefix arguments. | |
9690 | The value is always a vector. */) | |
9691 | () | |
6321824f | 9692 | { |
e39da3d7 RS |
9693 | return Fvector (this_command_key_count |
9694 | - this_single_command_key_start, | |
9695 | (XVECTOR (this_command_keys)->contents | |
9696 | + this_single_command_key_start)); | |
6321824f RS |
9697 | } |
9698 | ||
7d18f9ae RS |
9699 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9700 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 9701 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
9702 | More generally, it returns the last key sequence read, either by |
9703 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9704 | Unlike `this-single-command-keys', this function's value |
9705 | shows the events before all translations (except for input methods). | |
9706 | The value is always a vector. */) | |
9707 | () | |
7d18f9ae RS |
9708 | { |
9709 | return Fvector (raw_keybuf_count, | |
9710 | (XVECTOR (raw_keybuf)->contents)); | |
9711 | } | |
9712 | ||
71918b75 | 9713 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 PJ |
9714 | Sreset_this_command_lengths, 0, 0, 0, |
9715 | doc: /* Used for complicated reasons in `universal-argument-other-key'. | |
9716 | ||
9717 | `universal-argument-other-key' rereads the event just typed. | |
9718 | It then gets translated through `function-key-map'. | |
9719 | The translated event gets included in the echo area and in | |
9720 | the value of `this-command-keys' in addition to the raw original event. | |
9721 | That is not right. | |
9722 | ||
9723 | Calling this function directs the translated event to replace | |
9724 | the original event, so that only one version of the event actually | |
9725 | appears in the echo area and in the value of `this-command-keys'. */) | |
9726 | () | |
71918b75 RS |
9727 | { |
9728 | before_command_restore_flag = 1; | |
9729 | before_command_key_count_1 = before_command_key_count; | |
9730 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9731 | return Qnil; |
71918b75 RS |
9732 | } |
9733 | ||
82e6e5af | 9734 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
4707d2d0 PJ |
9735 | Sclear_this_command_keys, 0, 0, 0, |
9736 | doc: /* Clear out the vector that `this-command-keys' returns. | |
92501652 | 9737 | Also clear the record of the last 100 events. */) |
4707d2d0 | 9738 | () |
82e6e5af | 9739 | { |
fb0dde6c GM |
9740 | int i; |
9741 | ||
82e6e5af | 9742 | this_command_key_count = 0; |
fb0dde6c GM |
9743 | |
9744 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9745 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9746 | total_keys = 0; | |
9747 | recent_keys_index = 0; | |
82e6e5af RS |
9748 | return Qnil; |
9749 | } | |
9750 | ||
284f4730 | 9751 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
9752 | doc: /* Return the current depth in recursive edits. */) |
9753 | () | |
284f4730 JB |
9754 | { |
9755 | Lisp_Object temp; | |
bb9e9bed | 9756 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9757 | return temp; |
9758 | } | |
9759 | ||
9760 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
9761 | "FOpen dribble file: ", |
9762 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
9763 | If FILE is nil, close any open dribble file. */) | |
9764 | (file) | |
284f4730 JB |
9765 | Lisp_Object file; |
9766 | { | |
6cb52def | 9767 | if (dribble) |
284f4730 | 9768 | { |
6cb52def KH |
9769 | fclose (dribble); |
9770 | dribble = 0; | |
284f4730 | 9771 | } |
6cb52def | 9772 | if (!NILP (file)) |
284f4730 JB |
9773 | { |
9774 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 9775 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
9776 | if (dribble == 0) |
9777 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9778 | } |
9779 | return Qnil; | |
9780 | } | |
9781 | ||
9782 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 PJ |
9783 | doc: /* Discard the contents of the terminal input buffer. |
9784 | Also cancel any kbd macro being defined. */) | |
9785 | () | |
284f4730 | 9786 | { |
c5fdd383 | 9787 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9788 | update_mode_lines++; |
9789 | ||
24597608 | 9790 | Vunread_command_events = Qnil; |
86e5706b | 9791 | unread_command_char = -1; |
284f4730 JB |
9792 | |
9793 | discard_tty_input (); | |
9794 | ||
7ee32cda | 9795 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 9796 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
9797 | input_pending = 0; |
9798 | ||
9799 | return Qnil; | |
9800 | } | |
9801 | \f | |
9802 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
9803 | doc: /* Stop Emacs and return to superior process. You can resume later. |
9804 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
9805 | control, run a subshell instead. | |
9806 | ||
9807 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
9808 | to be read as terminal input by Emacs's parent, after suspension. | |
9809 | ||
9810 | Before suspending, run the normal hook `suspend-hook'. | |
9811 | After resumption run the normal hook `suspend-resume-hook'. | |
9812 | ||
9813 | Some operating systems cannot stop the Emacs process and resume it later. | |
9814 | On such systems, Emacs starts a subshell instead of suspending. */) | |
9815 | (stuffstring) | |
284f4730 JB |
9816 | Lisp_Object stuffstring; |
9817 | { | |
aed13378 | 9818 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9819 | int old_height, old_width; |
9820 | int width, height; | |
03cee6ae | 9821 | struct gcpro gcpro1; |
284f4730 JB |
9822 | |
9823 | if (!NILP (stuffstring)) | |
b7826503 | 9824 | CHECK_STRING (stuffstring); |
284f4730 | 9825 | |
1e95ed28 JB |
9826 | /* Run the functions in suspend-hook. */ |
9827 | if (!NILP (Vrun_hooks)) | |
9828 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9829 | |
b7d2ebbf | 9830 | GCPRO1 (stuffstring); |
ff11dfa1 | 9831 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9832 | reset_sys_modes (); |
9833 | /* sys_suspend can get an error if it tries to fork a subshell | |
9834 | and the system resources aren't available for that. */ | |
91a0da02 | 9835 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9836 | Qnil); |
284f4730 | 9837 | stuff_buffered_input (stuffstring); |
8026024c KH |
9838 | if (cannot_suspend) |
9839 | sys_subshell (); | |
9840 | else | |
9841 | sys_suspend (); | |
284f4730 JB |
9842 | unbind_to (count, Qnil); |
9843 | ||
9844 | /* Check if terminal/window size has changed. | |
9845 | Note that this is not useful when we are running directly | |
9846 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9847 | get_frame_size (&width, &height); |
284f4730 | 9848 | if (width != old_width || height != old_height) |
788f89eb | 9849 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9850 | |
1e95ed28 | 9851 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9852 | if (!NILP (Vrun_hooks)) |
9853 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9854 | |
284f4730 JB |
9855 | UNGCPRO; |
9856 | return Qnil; | |
9857 | } | |
9858 | ||
9859 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9860 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9861 | |
07a59269 | 9862 | void |
284f4730 JB |
9863 | stuff_buffered_input (stuffstring) |
9864 | Lisp_Object stuffstring; | |
9865 | { | |
284f4730 | 9866 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9867 | #ifdef BSD_SYSTEM |
284f4730 | 9868 | #ifndef BSD4_1 |
612b78ef | 9869 | register unsigned char *p; |
612b78ef | 9870 | |
8c18cbfb | 9871 | if (STRINGP (stuffstring)) |
284f4730 JB |
9872 | { |
9873 | register int count; | |
9874 | ||
d5db4077 KR |
9875 | p = SDATA (stuffstring); |
9876 | count = SBYTES (stuffstring); | |
284f4730 JB |
9877 | while (count-- > 0) |
9878 | stuff_char (*p++); | |
9879 | stuff_char ('\n'); | |
9880 | } | |
da8f7368 | 9881 | |
284f4730 | 9882 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 9883 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9884 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9885 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9886 | { |
da8f7368 GM |
9887 | int idx; |
9888 | ||
beecf6a1 KH |
9889 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9890 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 9891 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 9892 | stuff_char (kbd_fetch_ptr->code); |
da8f7368 | 9893 | |
3b8f9651 | 9894 | kbd_fetch_ptr->kind = NO_EVENT; |
da8f7368 GM |
9895 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
9896 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
9897 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 9898 | } |
da8f7368 | 9899 | |
284f4730 JB |
9900 | input_pending = 0; |
9901 | #endif | |
6df54671 | 9902 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9903 | } |
9904 | \f | |
dfcf069d | 9905 | void |
ffd56f97 JB |
9906 | set_waiting_for_input (time_to_clear) |
9907 | EMACS_TIME *time_to_clear; | |
284f4730 | 9908 | { |
ffd56f97 | 9909 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9910 | |
9911 | /* Tell interrupt_signal to throw back to read_char, */ | |
9912 | waiting_for_input = 1; | |
9913 | ||
9914 | /* If interrupt_signal was called before and buffered a C-g, | |
9915 | make it run again now, to avoid timing error. */ | |
9916 | if (!NILP (Vquit_flag)) | |
9917 | quit_throw_to_read_char (); | |
284f4730 JB |
9918 | } |
9919 | ||
07a59269 | 9920 | void |
284f4730 JB |
9921 | clear_waiting_for_input () |
9922 | { | |
9923 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9924 | waiting_for_input = 0; | |
ffd56f97 | 9925 | input_available_clear_time = 0; |
284f4730 JB |
9926 | } |
9927 | ||
27fd22dc | 9928 | /* This routine is called at interrupt level in response to C-g. |
d4e68eea GM |
9929 | |
9930 | If interrupt_input, this is the handler for SIGINT. Otherwise, it | |
9931 | is called from kbd_buffer_store_event, in handling SIGIO or | |
9932 | SIGTINT. | |
284f4730 | 9933 | |
d4e68eea GM |
9934 | If `waiting_for_input' is non zero, then unless `echoing' is |
9935 | nonzero, immediately throw back to read_char. | |
284f4730 | 9936 | |
d4e68eea GM |
9937 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
9938 | eval to throw, when it gets a chance. If quit-flag is already | |
9939 | non-nil, it stops the job right away. */ | |
284f4730 JB |
9940 | |
9941 | SIGTYPE | |
91c049d4 RS |
9942 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9943 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9944 | { |
9945 | char c; | |
9946 | /* Must preserve main program's value of errno. */ | |
9947 | int old_errno = errno; | |
788f89eb | 9948 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9949 | |
5970a8cb | 9950 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9951 | if (!read_socket_hook && NILP (Vwindow_system)) |
9952 | { | |
9953 | /* USG systems forget handlers when they are used; | |
9954 | must reestablish each time */ | |
9955 | signal (SIGINT, interrupt_signal); | |
9956 | signal (SIGQUIT, interrupt_signal); | |
9957 | } | |
284f4730 JB |
9958 | #endif /* USG */ |
9959 | ||
9960 | cancel_echoing (); | |
9961 | ||
31e4e97b | 9962 | if (!NILP (Vquit_flag) |
788f89eb | 9963 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9964 | { |
31e4e97b EZ |
9965 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9966 | another SIGINT, it might be harmful due to non-reentrancy | |
9967 | in I/O functions. */ | |
9968 | sigblock (sigmask (SIGINT)); | |
9969 | ||
284f4730 JB |
9970 | fflush (stdout); |
9971 | reset_sys_modes (); | |
31e4e97b | 9972 | |
284f4730 JB |
9973 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9974 | /* | |
9975 | * On systems which can suspend the current process and return to the original | |
9976 | * shell, this command causes the user to end up back at the shell. | |
9977 | * The "Auto-save" and "Abort" questions are not asked until | |
9978 | * the user elects to return to emacs, at which point he can save the current | |
9979 | * job and either dump core or continue. | |
9980 | */ | |
9981 | sys_suspend (); | |
9982 | #else | |
9983 | #ifdef VMS | |
9984 | if (sys_suspend () == -1) | |
9985 | { | |
9986 | printf ("Not running as a subprocess;\n"); | |
9987 | printf ("you can continue or abort.\n"); | |
9988 | } | |
9989 | #else /* not VMS */ | |
9990 | /* Perhaps should really fork an inferior shell? | |
9991 | But that would not provide any way to get back | |
9992 | to the original shell, ever. */ | |
9993 | printf ("No support for stopping a process on this operating system;\n"); | |
9994 | printf ("you can continue or abort.\n"); | |
9995 | #endif /* not VMS */ | |
9996 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9997 | #ifdef MSDOS |
9998 | /* We must remain inside the screen area when the internal terminal | |
9999 | is used. Note that [Enter] is not echoed by dos. */ | |
10000 | cursor_to (0, 0); | |
10001 | #endif | |
118d6ca9 RS |
10002 | /* It doesn't work to autosave while GC is in progress; |
10003 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10004 | if (!gc_in_progress) | |
9fd7d808 | 10005 | { |
118d6ca9 RS |
10006 | printf ("Auto-save? (y or n) "); |
10007 | fflush (stdout); | |
10008 | if (((c = getchar ()) & ~040) == 'Y') | |
10009 | { | |
10010 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10011 | #ifdef MSDOS |
118d6ca9 | 10012 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10013 | #else /* not MSDOS */ |
118d6ca9 | 10014 | printf ("Auto-save done\n"); |
80e4aa30 | 10015 | #endif /* not MSDOS */ |
118d6ca9 RS |
10016 | } |
10017 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10018 | } |
118d6ca9 RS |
10019 | else |
10020 | { | |
10021 | /* During GC, it must be safe to reenable quitting again. */ | |
10022 | Vinhibit_quit = Qnil; | |
10023 | #ifdef MSDOS | |
10024 | printf ("\r\n"); | |
10025 | #endif /* not MSDOS */ | |
10026 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10027 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10028 | fflush (stdout); | |
10029 | } | |
10030 | ||
80e4aa30 RS |
10031 | #ifdef MSDOS |
10032 | printf ("\r\nAbort? (y or n) "); | |
10033 | #else /* not MSDOS */ | |
284f4730 JB |
10034 | #ifdef VMS |
10035 | printf ("Abort (and enter debugger)? (y or n) "); | |
10036 | #else /* not VMS */ | |
10037 | printf ("Abort (and dump core)? (y or n) "); | |
10038 | #endif /* not VMS */ | |
80e4aa30 | 10039 | #endif /* not MSDOS */ |
284f4730 JB |
10040 | fflush (stdout); |
10041 | if (((c = getchar ()) & ~040) == 'Y') | |
10042 | abort (); | |
10043 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10044 | #ifdef MSDOS |
10045 | printf ("\r\nContinuing...\r\n"); | |
10046 | #else /* not MSDOS */ | |
284f4730 | 10047 | printf ("Continuing...\n"); |
80e4aa30 | 10048 | #endif /* not MSDOS */ |
284f4730 JB |
10049 | fflush (stdout); |
10050 | init_sys_modes (); | |
31e4e97b | 10051 | sigfree (); |
284f4730 JB |
10052 | } |
10053 | else | |
10054 | { | |
10055 | /* If executing a function that wants to be interrupted out of | |
10056 | and the user has not deferred quitting by binding `inhibit-quit' | |
10057 | then quit right away. */ | |
10058 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10059 | { | |
e39da3d7 RS |
10060 | struct gl_state_s saved; |
10061 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10062 | ||
284f4730 JB |
10063 | immediate_quit = 0; |
10064 | sigfree (); | |
e39da3d7 RS |
10065 | saved = gl_state; |
10066 | GCPRO4 (saved.object, saved.global_code, | |
10067 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10068 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10069 | gl_state = saved; |
10070 | UNGCPRO; | |
284f4730 JB |
10071 | } |
10072 | else | |
10073 | /* Else request quit when it's safe */ | |
10074 | Vquit_flag = Qt; | |
10075 | } | |
10076 | ||
10077 | if (waiting_for_input && !echoing) | |
10078 | quit_throw_to_read_char (); | |
10079 | ||
10080 | errno = old_errno; | |
10081 | } | |
10082 | ||
10083 | /* Handle a C-g by making read_char return C-g. */ | |
10084 | ||
07a59269 | 10085 | void |
284f4730 JB |
10086 | quit_throw_to_read_char () |
10087 | { | |
284f4730 JB |
10088 | sigfree (); |
10089 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10090 | clear_waiting_for_input (); |
284f4730 JB |
10091 | input_pending = 0; |
10092 | ||
24597608 | 10093 | Vunread_command_events = Qnil; |
86e5706b | 10094 | unread_command_char = -1; |
284f4730 | 10095 | |
087feab3 RS |
10096 | #if 0 /* Currently, sit_for is called from read_char without turning |
10097 | off polling. And that can call set_waiting_for_input. | |
10098 | It seems to be harmless. */ | |
e6b01c14 JB |
10099 | #ifdef POLL_FOR_INPUT |
10100 | /* May be > 1 if in recursive minibuffer. */ | |
10101 | if (poll_suppress_count == 0) | |
10102 | abort (); | |
10103 | #endif | |
087feab3 | 10104 | #endif |
4c52b668 | 10105 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10106 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10107 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10108 | 0, 0); |
e6b01c14 | 10109 | |
284f4730 JB |
10110 | _longjmp (getcjmp, 1); |
10111 | } | |
10112 | \f | |
10113 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10114 | doc: /* Set mode of reading keyboard input. |
10115 | First arg INTERRUPT non-nil means use input interrupts; | |
10116 | nil means use CBREAK mode. | |
10117 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10118 | (no effect except in CBREAK mode). | |
10119 | Third arg META t means accept 8-bit input (for a Meta key). | |
10120 | META nil means ignore the top bit, on the assumption it is parity. | |
10121 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10122 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10123 | See also `current-input-mode'. */) | |
10124 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10125 | Lisp_Object interrupt, flow, meta, quit; |
10126 | { | |
10127 | if (!NILP (quit) | |
8c18cbfb | 10128 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10129 | error ("set-input-mode: QUIT must be an ASCII character"); |
10130 | ||
10131 | #ifdef POLL_FOR_INPUT | |
10132 | stop_polling (); | |
10133 | #endif | |
284f4730 | 10134 | |
07de30b9 | 10135 | #ifndef DOS_NT |
2ee250ec | 10136 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10137 | reset_sys_modes (); |
2ee250ec RS |
10138 | #endif |
10139 | ||
284f4730 JB |
10140 | #ifdef SIGIO |
10141 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10142 | if (read_socket_hook) |
9a0f60bb KH |
10143 | { |
10144 | /* When using X, don't give the user a real choice, | |
10145 | because we haven't implemented the mechanisms to support it. */ | |
10146 | #ifdef NO_SOCK_SIGIO | |
10147 | interrupt_input = 0; | |
10148 | #else /* not NO_SOCK_SIGIO */ | |
10149 | interrupt_input = 1; | |
284f4730 | 10150 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10151 | } |
10152 | else | |
284f4730 JB |
10153 | interrupt_input = !NILP (interrupt); |
10154 | #else /* not SIGIO */ | |
10155 | interrupt_input = 0; | |
10156 | #endif /* not SIGIO */ | |
9a0f60bb | 10157 | |
284f4730 JB |
10158 | /* Our VMS input only works by interrupts, as of now. */ |
10159 | #ifdef VMS | |
10160 | interrupt_input = 1; | |
10161 | #endif | |
9a0f60bb | 10162 | |
284f4730 | 10163 | flow_control = !NILP (flow); |
b04904fb RS |
10164 | if (NILP (meta)) |
10165 | meta_key = 0; | |
10166 | else if (EQ (meta, Qt)) | |
10167 | meta_key = 1; | |
10168 | else | |
10169 | meta_key = 2; | |
284f4730 JB |
10170 | if (!NILP (quit)) |
10171 | /* Don't let this value be out of range. */ | |
10172 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10173 | ||
07de30b9 | 10174 | #ifndef DOS_NT |
284f4730 | 10175 | init_sys_modes (); |
2ee250ec | 10176 | #endif |
34f04431 RS |
10177 | |
10178 | #ifdef POLL_FOR_INPUT | |
10179 | poll_suppress_count = 1; | |
10180 | start_polling (); | |
10181 | #endif | |
284f4730 JB |
10182 | return Qnil; |
10183 | } | |
80645119 JB |
10184 | |
10185 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10186 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10187 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10188 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10189 | nil, Emacs is using CBREAK mode. | |
10190 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10191 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10192 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10193 | META nil means ignoring the top bit, on the assumption it is parity. | |
10194 | META is neither t nor nil if accepting 8-bit input and using | |
10195 | all 8 bits as the character code. | |
10196 | QUIT is the character Emacs currently uses to quit. | |
10197 | The elements of this list correspond to the arguments of | |
10198 | `set-input-mode'. */) | |
10199 | () | |
80645119 JB |
10200 | { |
10201 | Lisp_Object val[4]; | |
10202 | ||
10203 | val[0] = interrupt_input ? Qt : Qnil; | |
10204 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10205 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10206 | XSETFASTINT (val[3], quit_char); |
80645119 | 10207 | |
bf673a7a | 10208 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10209 | } |
10210 | ||
284f4730 | 10211 | \f |
6c6083a9 | 10212 | /* |
c5fdd383 | 10213 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10214 | */ |
10215 | void | |
c5fdd383 KH |
10216 | init_kboard (kb) |
10217 | KBOARD *kb; | |
6c6083a9 | 10218 | { |
217258d5 | 10219 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10220 | kb->Vlast_command = Qnil; |
75045dcb | 10221 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10222 | kb->Vprefix_arg = Qnil; |
75045dcb | 10223 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10224 | kb->kbd_queue = Qnil; |
10225 | kb->kbd_queue_has_data = 0; | |
10226 | kb->immediate_echo = 0; | |
678e9d18 | 10227 | kb->echo_string = Qnil; |
c5fdd383 KH |
10228 | kb->echo_after_prompt = -1; |
10229 | kb->kbd_macro_buffer = 0; | |
10230 | kb->kbd_macro_bufsize = 0; | |
10231 | kb->defining_kbd_macro = Qnil; | |
10232 | kb->Vlast_kbd_macro = Qnil; | |
10233 | kb->reference_count = 0; | |
7c97ffdc | 10234 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10235 | kb->system_key_syms = Qnil; |
9ba47203 | 10236 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10237 | } |
10238 | ||
10239 | /* | |
c5fdd383 | 10240 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10241 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10242 | * it a second time. |
10243 | */ | |
e50b8090 | 10244 | static void |
c5fdd383 KH |
10245 | wipe_kboard (kb) |
10246 | KBOARD *kb; | |
6c6083a9 | 10247 | { |
c5fdd383 KH |
10248 | if (kb->kbd_macro_buffer) |
10249 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10250 | } |
10251 | ||
e50b8090 | 10252 | #ifdef MULTI_KBOARD |
a122a38e GM |
10253 | |
10254 | /* Free KB and memory referenced from it. */ | |
10255 | ||
e50b8090 KH |
10256 | void |
10257 | delete_kboard (kb) | |
a122a38e | 10258 | KBOARD *kb; |
e50b8090 KH |
10259 | { |
10260 | KBOARD **kbp; | |
a122a38e | 10261 | |
e50b8090 KH |
10262 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10263 | if (*kbp == NULL) | |
10264 | abort (); | |
10265 | *kbp = kb->next_kboard; | |
a122a38e GM |
10266 | |
10267 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10268 | if (kb == current_kboard |
10269 | && FRAMEP (selected_frame) | |
10270 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10271 | { |
18f534df | 10272 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10273 | if (current_kboard == kb) |
10274 | abort (); | |
10275 | } | |
10276 | ||
e50b8090 KH |
10277 | wipe_kboard (kb); |
10278 | xfree (kb); | |
10279 | } | |
a122a38e GM |
10280 | |
10281 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10282 | |
dfcf069d | 10283 | void |
284f4730 JB |
10284 | init_keyboard () |
10285 | { | |
284f4730 JB |
10286 | /* This is correct before outermost invocation of the editor loop */ |
10287 | command_loop_level = -1; | |
10288 | immediate_quit = 0; | |
10289 | quit_char = Ctl ('g'); | |
24597608 | 10290 | Vunread_command_events = Qnil; |
86e5706b | 10291 | unread_command_char = -1; |
87dd9b9b | 10292 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10293 | total_keys = 0; |
9deb415a | 10294 | recent_keys_index = 0; |
beecf6a1 KH |
10295 | kbd_fetch_ptr = kbd_buffer; |
10296 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10297 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10298 | #ifdef HAVE_MOUSE |
a9d77f1f | 10299 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10300 | #endif |
284f4730 JB |
10301 | input_pending = 0; |
10302 | ||
4c52b668 KH |
10303 | /* This means that command_loop_1 won't try to select anything the first |
10304 | time through. */ | |
10305 | internal_last_event_frame = Qnil; | |
10306 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10307 | |
c5fdd383 | 10308 | #ifdef MULTI_KBOARD |
aaca43a1 | 10309 | current_kboard = initial_kboard; |
6c6083a9 | 10310 | #endif |
aaca43a1 | 10311 | wipe_kboard (current_kboard); |
c5fdd383 | 10312 | init_kboard (current_kboard); |
07d2b8de | 10313 | |
7a80a6f6 | 10314 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10315 | { |
10316 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10317 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10318 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10319 | SIGQUIT and we can't tell which one it will give us. */ | |
10320 | signal (SIGQUIT, interrupt_signal); | |
10321 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10322 | } |
284f4730 JB |
10323 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10324 | #ifdef SIGIO | |
7a80a6f6 RS |
10325 | if (!noninteractive) |
10326 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10327 | #endif /* SIGIO */ |
284f4730 JB |
10328 | |
10329 | /* Use interrupt input by default, if it works and noninterrupt input | |
10330 | has deficiencies. */ | |
10331 | ||
10332 | #ifdef INTERRUPT_INPUT | |
10333 | interrupt_input = 1; | |
10334 | #else | |
10335 | interrupt_input = 0; | |
10336 | #endif | |
10337 | ||
10338 | /* Our VMS input only works by interrupts, as of now. */ | |
10339 | #ifdef VMS | |
10340 | interrupt_input = 1; | |
10341 | #endif | |
10342 | ||
10343 | sigfree (); | |
10344 | dribble = 0; | |
10345 | ||
10346 | if (keyboard_init_hook) | |
10347 | (*keyboard_init_hook) (); | |
10348 | ||
10349 | #ifdef POLL_FOR_INPUT | |
10350 | poll_suppress_count = 1; | |
10351 | start_polling (); | |
10352 | #endif | |
10353 | } | |
10354 | ||
df0f2ba1 | 10355 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10356 | event header symbols and put properties on them. */ |
10357 | struct event_head { | |
10358 | Lisp_Object *var; | |
10359 | char *name; | |
10360 | Lisp_Object *kind; | |
10361 | }; | |
10362 | ||
10363 | struct event_head head_table[] = { | |
7406e988 PJ |
10364 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10365 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10366 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10367 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10368 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 PJ |
10369 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
10370 | {&Qselect_window, "select-window", &Qselect_window} | |
284f4730 JB |
10371 | }; |
10372 | ||
dfcf069d | 10373 | void |
284f4730 JB |
10374 | syms_of_keyboard () |
10375 | { | |
f0c1cc56 GM |
10376 | Vpre_help_message = Qnil; |
10377 | staticpro (&Vpre_help_message); | |
10378 | ||
8e1e4240 GM |
10379 | Vlispy_mouse_stem = build_string ("mouse"); |
10380 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10381 | |
9ea173e8 | 10382 | /* Tool-bars. */ |
7ee32cda GM |
10383 | QCimage = intern (":image"); |
10384 | staticpro (&QCimage); | |
10385 | ||
10386 | staticpro (&Qhelp_echo); | |
10387 | Qhelp_echo = intern ("help-echo"); | |
10388 | ||
e8886a1d RS |
10389 | staticpro (&item_properties); |
10390 | item_properties = Qnil; | |
10391 | ||
9ea173e8 GM |
10392 | staticpro (&tool_bar_item_properties); |
10393 | tool_bar_item_properties = Qnil; | |
10394 | staticpro (&tool_bar_items_vector); | |
10395 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10396 | |
d5eecefb RS |
10397 | staticpro (&real_this_command); |
10398 | real_this_command = Qnil; | |
10399 | ||
d925fb39 RS |
10400 | Qtimer_event_handler = intern ("timer-event-handler"); |
10401 | staticpro (&Qtimer_event_handler); | |
10402 | ||
2e894dab RS |
10403 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10404 | staticpro (&Qdisabled_command_hook); | |
10405 | ||
284f4730 JB |
10406 | Qself_insert_command = intern ("self-insert-command"); |
10407 | staticpro (&Qself_insert_command); | |
10408 | ||
10409 | Qforward_char = intern ("forward-char"); | |
10410 | staticpro (&Qforward_char); | |
10411 | ||
10412 | Qbackward_char = intern ("backward-char"); | |
10413 | staticpro (&Qbackward_char); | |
10414 | ||
10415 | Qdisabled = intern ("disabled"); | |
10416 | staticpro (&Qdisabled); | |
10417 | ||
e58aa385 RS |
10418 | Qundefined = intern ("undefined"); |
10419 | staticpro (&Qundefined); | |
10420 | ||
86e5706b RS |
10421 | Qpre_command_hook = intern ("pre-command-hook"); |
10422 | staticpro (&Qpre_command_hook); | |
10423 | ||
10424 | Qpost_command_hook = intern ("post-command-hook"); | |
10425 | staticpro (&Qpost_command_hook); | |
10426 | ||
59aadc81 RS |
10427 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10428 | staticpro (&Qpost_command_idle_hook); | |
10429 | ||
3ef14e46 RS |
10430 | Qdeferred_action_function = intern ("deferred-action-function"); |
10431 | staticpro (&Qdeferred_action_function); | |
10432 | ||
40932d1a RS |
10433 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10434 | staticpro (&Qcommand_hook_internal); | |
10435 | ||
284f4730 JB |
10436 | Qfunction_key = intern ("function-key"); |
10437 | staticpro (&Qfunction_key); | |
13b5e56c | 10438 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10439 | staticpro (&Qmouse_click); |
742fbed7 | 10440 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
10441 | Qmouse_wheel = intern ("mouse-wheel"); |
10442 | staticpro (&Qmouse_wheel); | |
742fbed7 AC |
10443 | #endif |
10444 | #ifdef WINDOWSNT | |
1161d367 GV |
10445 | Qlanguage_change = intern ("language-change"); |
10446 | staticpro (&Qlanguage_change); | |
07de30b9 | 10447 | #endif |
a24dc617 RS |
10448 | Qdrag_n_drop = intern ("drag-n-drop"); |
10449 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10450 | |
4ebc27a5 JD |
10451 | Qsave_session = intern ("save-session"); |
10452 | staticpro(&Qsave_session); | |
10453 | ||
5bf68f6e AS |
10454 | Qusr1_signal = intern ("usr1-signal"); |
10455 | staticpro (&Qusr1_signal); | |
10456 | Qusr2_signal = intern ("usr2-signal"); | |
10457 | staticpro (&Qusr2_signal); | |
10458 | ||
598a9fa7 JB |
10459 | Qmenu_enable = intern ("menu-enable"); |
10460 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10461 | Qmenu_alias = intern ("menu-alias"); |
10462 | staticpro (&Qmenu_alias); | |
10463 | QCenable = intern (":enable"); | |
10464 | staticpro (&QCenable); | |
10465 | QCvisible = intern (":visible"); | |
10466 | staticpro (&QCvisible); | |
7ee32cda GM |
10467 | QChelp = intern (":help"); |
10468 | staticpro (&QChelp); | |
e8886a1d RS |
10469 | QCfilter = intern (":filter"); |
10470 | staticpro (&QCfilter); | |
10471 | QCbutton = intern (":button"); | |
10472 | staticpro (&QCbutton); | |
74c1de23 RS |
10473 | QCkeys = intern (":keys"); |
10474 | staticpro (&QCkeys); | |
10475 | QCkey_sequence = intern (":key-sequence"); | |
10476 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10477 | QCtoggle = intern (":toggle"); |
10478 | staticpro (&QCtoggle); | |
10479 | QCradio = intern (":radio"); | |
10480 | staticpro (&QCradio); | |
598a9fa7 | 10481 | |
284f4730 JB |
10482 | Qmode_line = intern ("mode-line"); |
10483 | staticpro (&Qmode_line); | |
e5d77022 JB |
10484 | Qvertical_line = intern ("vertical-line"); |
10485 | staticpro (&Qvertical_line); | |
3c370943 JB |
10486 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10487 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10488 | Qmenu_bar = intern ("menu-bar"); |
10489 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10490 | |
10491 | Qabove_handle = intern ("above-handle"); | |
10492 | staticpro (&Qabove_handle); | |
10493 | Qhandle = intern ("handle"); | |
10494 | staticpro (&Qhandle); | |
10495 | Qbelow_handle = intern ("below-handle"); | |
10496 | staticpro (&Qbelow_handle); | |
db08707d RS |
10497 | Qup = intern ("up"); |
10498 | staticpro (&Qup); | |
10499 | Qdown = intern ("down"); | |
10500 | staticpro (&Qdown); | |
7ee32cda GM |
10501 | Qtop = intern ("top"); |
10502 | staticpro (&Qtop); | |
10503 | Qbottom = intern ("bottom"); | |
10504 | staticpro (&Qbottom); | |
10505 | Qend_scroll = intern ("end-scroll"); | |
10506 | staticpro (&Qend_scroll); | |
eef28553 SM |
10507 | Qratio = intern ("ratio"); |
10508 | staticpro (&Qratio); | |
284f4730 | 10509 | |
cd21b839 | 10510 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10511 | staticpro (&Qevent_kind); |
88cb0656 JB |
10512 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10513 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10514 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10515 | staticpro (&Qevent_symbol_element_mask); | |
10516 | Qmodifier_cache = intern ("modifier-cache"); | |
10517 | staticpro (&Qmodifier_cache); | |
284f4730 | 10518 | |
48e416d4 RS |
10519 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10520 | staticpro (&Qrecompute_lucid_menubar); | |
10521 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10522 | staticpro (&Qactivate_menubar_hook); | |
10523 | ||
f4eef8b4 RS |
10524 | Qpolling_period = intern ("polling-period"); |
10525 | staticpro (&Qpolling_period); | |
10526 | ||
7d18f9ae RS |
10527 | Qinput_method_function = intern ("input-method-function"); |
10528 | staticpro (&Qinput_method_function); | |
10529 | ||
d5eecefb RS |
10530 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10531 | staticpro (&Qinput_method_exit_on_first_char); | |
10532 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10533 | staticpro (&Qinput_method_use_echo_area); | |
10534 | ||
10535 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10536 | Fset (Qinput_method_use_echo_area, Qnil); | |
10537 | ||
e18dfbf4 KR |
10538 | last_point_position_buffer = Qnil; |
10539 | ||
284f4730 JB |
10540 | { |
10541 | struct event_head *p; | |
10542 | ||
10543 | for (p = head_table; | |
10544 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10545 | p++) | |
10546 | { | |
10547 | *p->var = intern (p->name); | |
10548 | staticpro (p->var); | |
10549 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10550 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10551 | } |
10552 | } | |
10553 | ||
8e1e4240 | 10554 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10555 | staticpro (&button_down_location); |
8e1e4240 GM |
10556 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10557 | staticpro (&mouse_syms); | |
88cb0656 JB |
10558 | |
10559 | { | |
10560 | int i; | |
10561 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10562 | ||
10563 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10564 | for (i = 0; i < len; i++) | |
86e5706b RS |
10565 | if (modifier_names[i]) |
10566 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10567 | staticpro (&modifier_symbols); |
10568 | } | |
10569 | ||
9deb415a JB |
10570 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10571 | staticpro (&recent_keys); | |
10572 | ||
6569cc8d | 10573 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10574 | staticpro (&this_command_keys); |
6569cc8d | 10575 | |
7d18f9ae RS |
10576 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10577 | staticpro (&raw_keybuf); | |
10578 | ||
03b4122a BF |
10579 | Qextended_command_history = intern ("extended-command-history"); |
10580 | Fset (Qextended_command_history, Qnil); | |
10581 | staticpro (&Qextended_command_history); | |
10582 | ||
da8f7368 GM |
10583 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10584 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10585 | |
24597608 RS |
10586 | accent_key_syms = Qnil; |
10587 | staticpro (&accent_key_syms); | |
10588 | ||
284f4730 JB |
10589 | func_key_syms = Qnil; |
10590 | staticpro (&func_key_syms); | |
10591 | ||
742fbed7 | 10592 | #if defined(WINDOWSNT) || defined(MAC_OSX) |
07de30b9 GV |
10593 | mouse_wheel_syms = Qnil; |
10594 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
10595 | drag_n_drop_syms = Qnil; |
10596 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
10597 | #endif |
10598 | ||
cd21b839 JB |
10599 | unread_switch_frame = Qnil; |
10600 | staticpro (&unread_switch_frame); | |
10601 | ||
fe412364 EN |
10602 | internal_last_event_frame = Qnil; |
10603 | staticpro (&internal_last_event_frame); | |
10604 | ||
10605 | read_key_sequence_cmd = Qnil; | |
10606 | staticpro (&read_key_sequence_cmd); | |
10607 | ||
759860a6 RS |
10608 | menu_bar_one_keymap_changed_items = Qnil; |
10609 | staticpro (&menu_bar_one_keymap_changed_items); | |
10610 | ||
a1706c30 | 10611 | defsubr (&Sevent_convert_list); |
284f4730 | 10612 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10613 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10614 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10615 | #ifdef HAVE_MOUSE |
284f4730 | 10616 | defsubr (&Strack_mouse); |
2eb6bfbe | 10617 | #endif |
284f4730 JB |
10618 | defsubr (&Sinput_pending_p); |
10619 | defsubr (&Scommand_execute); | |
10620 | defsubr (&Srecent_keys); | |
10621 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10622 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10623 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10624 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10625 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10626 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10627 | defsubr (&Ssuspend_emacs); |
10628 | defsubr (&Sabort_recursive_edit); | |
10629 | defsubr (&Sexit_recursive_edit); | |
10630 | defsubr (&Srecursion_depth); | |
10631 | defsubr (&Stop_level); | |
10632 | defsubr (&Sdiscard_input); | |
10633 | defsubr (&Sopen_dribble_file); | |
10634 | defsubr (&Sset_input_mode); | |
80645119 | 10635 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10636 | defsubr (&Sexecute_extended_command); |
10637 | ||
284f4730 | 10638 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 10639 | doc: /* Last input event that was part of a command. */); |
86e5706b | 10640 | |
186cf719 | 10641 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 10642 | doc: /* Last input event that was part of a command. */); |
284f4730 | 10643 | |
7d6de002 | 10644 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
10645 | doc: /* Last input event in a command, except for mouse menu events. |
10646 | Mouse menus give back keys that don't look like mouse events; | |
10647 | this variable holds the actual mouse event that led to the menu, | |
10648 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 10649 | |
284f4730 | 10650 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 10651 | doc: /* Last input event. */); |
86e5706b | 10652 | |
186cf719 | 10653 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 10654 | doc: /* Last input event. */); |
284f4730 | 10655 | |
24597608 | 10656 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
10657 | doc: /* List of events to be read as the command input. |
10658 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 10659 | Vunread_command_events = Qnil; |
284f4730 | 10660 | |
86e5706b | 10661 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 10662 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 10663 | |
7d18f9ae | 10664 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
10665 | doc: /* List of events to be processed as input by input methods. |
10666 | These events are processed after `unread-command-events', but | |
10667 | before actual keyboard input. */); | |
7d18f9ae RS |
10668 | Vunread_post_input_method_events = Qnil; |
10669 | ||
10670 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
10671 | doc: /* List of events to be processed as input by input methods. |
10672 | These events are processed after `unread-command-events', but | |
10673 | before actual keyboard input. */); | |
7d18f9ae RS |
10674 | Vunread_input_method_events = Qnil; |
10675 | ||
284f4730 | 10676 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
10677 | doc: /* Meta-prefix character code. |
10678 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 10679 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10680 | |
6c7178b9 | 10681 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
10682 | doc: /* The last command executed. |
10683 | Normally a symbol with a function definition, but can be whatever was found | |
10684 | in the keymap, or whatever the variable `this-command' was set to by that | |
10685 | command. | |
10686 | ||
10687 | The value `mode-exit' is special; it means that the previous command | |
10688 | read an event that told it to exit, and it did so and unread that event. | |
10689 | In other words, the present command is the event that made the previous | |
10690 | command exit. | |
10691 | ||
10692 | The value `kill-region' is special; it means that the previous command | |
10693 | was a kill command. */); | |
284f4730 | 10694 | |
75045dcb | 10695 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 10696 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 10697 | |
d5eecefb | 10698 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
10699 | doc: /* The command now being executed. |
10700 | The command can set this variable; whatever is put here | |
10701 | will be in `last-command' during the following command. */); | |
d5eecefb | 10702 | Vthis_command = Qnil; |
284f4730 | 10703 | |
8b9940e6 KS |
10704 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
10705 | doc: /* If non-nil, the original command bound to the current key sequence. | |
10706 | The value of `this-command' is the result of looking up the original | |
10707 | command in the active keymaps. */); | |
10708 | Vthis_original_command = Qnil; | |
10709 | ||
284f4730 | 10710 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
10711 | doc: /* *Number of input events between auto-saves. |
10712 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
10713 | auto_save_interval = 300; |
10714 | ||
10715 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
10716 | doc: /* *Number of seconds idle time before auto-save. |
10717 | Zero or nil means disable auto-saving due to idleness. | |
10718 | After auto-saving due to this many seconds of idle time, | |
10719 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 10720 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10721 | |
39aab679 | 10722 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
10723 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
10724 | The value may be integer or floating point. */); | |
39aab679 | 10725 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10726 | |
10727 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
10728 | doc: /* *Interval between polling for input during Lisp execution. |
10729 | The reason for polling is to make C-g work to stop a running program. | |
10730 | Polling is needed only when using X windows and SIGIO does not work. | |
10731 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 10732 | polling_period = 2; |
df0f2ba1 | 10733 | |
564dc952 | 10734 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
10735 | doc: /* *Maximum time between mouse clicks to make a double-click. |
10736 | Measured in milliseconds. nil means disable double-click recognition; | |
10737 | t means double-clicks have no time limit and are detected | |
10738 | by position only. */); | |
aab06933 | 10739 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10740 | |
222d557c | 10741 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
10742 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
10743 | On window-system frames, value is the number of pixels the mouse may have | |
10744 | moved horizontally or vertically between two clicks to make a double-click. | |
10745 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
10746 | instead of pixels. |
10747 | ||
10748 | This variable is also the threshold for motion of the mouse | |
10749 | to count as a drag. */); | |
222d557c GM |
10750 | double_click_fuzz = 3; |
10751 | ||
03361bcc | 10752 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 10753 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
10754 | inhibit_local_menu_bar_menus = 0; |
10755 | ||
284f4730 | 10756 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
10757 | doc: /* Number of complete key sequences read as input so far. |
10758 | This includes key sequences read from keyboard macros. | |
10759 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
10760 | num_input_keys = 0; |
10761 | ||
c43b1734 | 10762 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
10763 | doc: /* Number of input events read from the keyboard so far. |
10764 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 10765 | num_nonmacro_input_events = 0; |
fa90970d | 10766 | |
4c52b668 | 10767 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
10768 | doc: /* The frame in which the most recently read event occurred. |
10769 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
10770 | Vlast_event_frame = Qnil; |
10771 | ||
fa90970d RS |
10772 | /* This variable is set up in sysdep.c. */ |
10773 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 10774 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 10775 | |
7e85b935 | 10776 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
10777 | doc: /* Character to recognize as meaning Help. |
10778 | When it is read, do `(eval help-form)', and display result if it's a string. | |
10779 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 10780 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10781 | |
ecb7cb34 | 10782 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
10783 | doc: /* List of input events to recognize as meaning Help. |
10784 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
10785 | Vhelp_event_list = Qnil; |
10786 | ||
284f4730 | 10787 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
10788 | doc: /* Form to execute when character `help-char' is read. |
10789 | If the form returns a string, that string is displayed. | |
10790 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
10791 | Vhelp_form = Qnil; |
10792 | ||
7e85b935 | 10793 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
10794 | doc: /* Command to run when `help-char' character follows a prefix key. |
10795 | This command is used only when there is no actual binding | |
10796 | for that character after that prefix key. */); | |
7e85b935 RS |
10797 | Vprefix_help_command = Qnil; |
10798 | ||
284f4730 | 10799 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
10800 | doc: /* Form to evaluate when Emacs starts up. |
10801 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
10802 | Vtop_level = Qnil; |
10803 | ||
10804 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 PJ |
10805 | doc: /* Translate table for keyboard input, or nil. |
10806 | Each character is looked up in this string and the contents used instead. | |
10807 | The value may be a string, a vector, or a char-table. | |
10808 | If it is a string or vector of length N, | |
10809 | character codes N and up are untranslated. | |
10810 | In a vector or a char-table, an element which is nil means "no translation". */); | |
284f4730 JB |
10811 | Vkeyboard_translate_table = Qnil; |
10812 | ||
8026024c | 10813 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
10814 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
10815 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
10816 | cannot_suspend = 0; |
10817 | ||
284f4730 | 10818 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
10819 | doc: /* Non-nil means prompt with menus when appropriate. |
10820 | This is done when reading from a keymap that has a prompt string, | |
10821 | for elements that have prompt strings. | |
10822 | The menu is displayed on the screen | |
10823 | if X menus were enabled at configuration | |
10824 | time and the previous event was a mouse click prefix key. | |
10825 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
10826 | menu_prompting = 1; |
10827 | ||
10828 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
10829 | doc: /* Character to see next line of menu prompt. |
10830 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 10831 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10832 | |
10833 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
10834 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
10835 | Emacs applies the modifiers of the character stored here to each keyboard | |
10836 | character it reads. For example, after evaluating the expression | |
10837 | (setq extra-keyboard-modifiers ?\\C-x) | |
10838 | all input characters will have the control modifier applied to them. | |
10839 | ||
10840 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
10841 | not count as a control character; rather, it counts as a character | |
10842 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
10843 | cancels any modification. */); | |
9fa4395d | 10844 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10845 | |
10846 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
10847 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
10848 | The command loop sets this to nil before each command, | |
10849 | and tests the value when the command returns. | |
10850 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
10851 | Vdeactivate_mark = Qnil; |
10852 | ||
b0f2a7bf | 10853 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 10854 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
10855 | Vcommand_hook_internal = Qnil; |
10856 | ||
86e5706b | 10857 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
10858 | doc: /* Normal hook run before each command is executed. |
10859 | If an unhandled error happens in running this hook, | |
10860 | the hook value is set to nil, since otherwise the error | |
10861 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
10862 | Vpre_command_hook = Qnil; |
10863 | ||
10864 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
10865 | doc: /* Normal hook run after each command is executed. |
10866 | If an unhandled error happens in running this hook, | |
10867 | the hook value is set to nil, since otherwise the error | |
10868 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 10869 | Vpost_command_hook = Qnil; |
48e416d4 | 10870 | |
59aadc81 | 10871 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
4707d2d0 | 10872 | doc: /* Normal hook run after each command is executed, if idle. |
cf9b6656 | 10873 | Errors running the hook are caught and ignored. */); |
59aadc81 RS |
10874 | Vpost_command_idle_hook = Qnil; |
10875 | ||
10876 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
4707d2d0 PJ |
10877 | doc: /* Delay time before running `post-command-idle-hook'. |
10878 | This is measured in microseconds. */); | |
59aadc81 RS |
10879 | post_command_idle_delay = 100000; |
10880 | ||
cf24f894 RS |
10881 | #if 0 |
10882 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 10883 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
10884 | #endif |
10885 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10886 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); | |
cdb9d665 | 10887 | |
48e416d4 | 10888 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 10889 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 10890 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 10891 | |
9f9c0e27 | 10892 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
10893 | doc: /* List of menu bar items to move to the end of the menu bar. |
10894 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 10895 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10896 | |
217258d5 KH |
10897 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10898 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
10899 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
10900 | If this variable is non-nil, it is used as a keymap instead of the | |
10901 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
10902 | This variable is intended to let commands such as `universal-argument' | |
10903 | set up a different keymap for reading the next command. */); | |
217258d5 | 10904 | |
9dd3131c | 10905 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 PJ |
10906 | doc: /* Keymap that overrides all other local keymaps. |
10907 | If this variable is non-nil, it is used as a keymap instead of the | |
10908 | buffer's local map, and the minor mode keymaps and text property keymaps. */); | |
9dd3131c RS |
10909 | Voverriding_local_map = Qnil; |
10910 | ||
d0a49716 | 10911 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
10912 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
10913 | Otherwise, the menu bar continues to reflect the buffer's local map | |
10914 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
10915 | Voverriding_local_map_menu_flag = Qnil; |
10916 | ||
7f07d5ca | 10917 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 10918 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
10919 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
10920 | ||
71edead1 | 10921 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 10922 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 10923 | |
7c97ffdc | 10924 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
10925 | doc: /* Alist of system-specific X windows key symbols. |
10926 | Each element should have the form (N . SYMBOL) where N is the | |
10927 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
10928 | and SYMBOL is its name. */); | |
8a792f3a RS |
10929 | |
10930 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
10931 | doc: /* List of deferred actions to be performed at a later time. |
10932 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
10933 | Vdeferred_action_list = Qnil; |
10934 | ||
10935 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
10936 | doc: /* Function to call to handle deferred actions, after each command. |
10937 | This function is called with no arguments after each command | |
10938 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 10939 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
10940 | |
10941 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
10942 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
10943 | The value can be a length of time to show the message for. | |
10944 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 10945 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 10946 | |
c04cbc3b | 10947 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 10948 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 10949 | Vtimer_list = Qnil; |
d9d4c147 KH |
10950 | |
10951 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 10952 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 10953 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
10954 | |
10955 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
10956 | doc: /* If non-nil, the function that implements the current input method. |
10957 | It's called with one argument, a printing character that was just read. | |
10958 | \(That means a character with code 040...0176.) | |
10959 | Typically this function uses `read-event' to read additional events. | |
10960 | When it does so, it should first bind `input-method-function' to nil | |
10961 | so it will not be called recursively. | |
10962 | ||
10963 | The function should return a list of zero or more events | |
10964 | to be used as input. If it wants to put back some events | |
10965 | to be reconsidered, separately, by the input method, | |
10966 | it can add them to the beginning of `unread-command-events'. | |
10967 | ||
10968 | The input method function can find in `input-method-previous-method' | |
10969 | the previous echo area message. | |
10970 | ||
10971 | The input method function should refer to the variables | |
10972 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
10973 | for guidance on what to do. */); | |
7d18f9ae | 10974 | Vinput_method_function = Qnil; |
d5eecefb RS |
10975 | |
10976 | DEFVAR_LISP ("input-method-previous-message", | |
10977 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
10978 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
10979 | This variable exists because `read-event' clears the echo area | |
10980 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 10981 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
10982 | |
10983 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
10984 | doc: /* If non-nil, the function that implements the display of help. |
10985 | It's called with one argument, the help string to display. */); | |
7ee32cda | 10986 | Vshow_help_function = Qnil; |
adf5cb9c KH |
10987 | |
10988 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
10989 | doc: /* If non-nil, suppress point adjustment after executing a command. |
10990 | ||
10991 | After a command is executed, if point is moved into a region that has | |
10992 | special properties (e.g. composition, display), we adjust point to | |
10993 | the boundary of the region. But, several special commands sets this | |
10994 | variable to non-nil, then we suppress the point adjustment. | |
10995 | ||
10996 | This variable is set to nil before reading a command, and is checked | |
10997 | just after executing the command. */); | |
adf5cb9c KH |
10998 | Vdisable_point_adjustment = Qnil; |
10999 | ||
11000 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11001 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11002 | doc: /* *If non-nil, always suppress point adjustment. |
11003 | ||
11004 | The default value is nil, in which case, point adjustment are | |
11005 | suppressed only after special commands that set | |
11006 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11007 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11008 | |
a1d34b1e | 11009 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
11010 | doc: /* Non-nil means updating menu bindings is allowed. |
11011 | A value of nil means menu bindings should not be updated. | |
11012 | Used during Emacs' startup. */); | |
3626fb1a | 11013 | update_menu_bindings = 1; |
00392ce6 MB |
11014 | |
11015 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
11016 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11017 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11018 | Vminibuffer_message_timeout = make_number (2); |
284f4730 JB |
11019 | } |
11020 | ||
dfcf069d | 11021 | void |
284f4730 JB |
11022 | keys_of_keyboard () |
11023 | { | |
11024 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11025 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11026 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11027 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11028 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11029 | |
11030 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11031 | "handle-delete-frame"); | |
11032 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
11033 | "ignore-event"); | |
11034 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
11035 | "ignore-event"); | |
a697f886 PJ |
11036 | initial_define_lispy_key (Vspecial_event_map, "select-window", |
11037 | "handle-select-window"); | |
4ebc27a5 JD |
11038 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11039 | "handle-save-session"); | |
284f4730 | 11040 | } |