Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
39aab679 DL |
2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000 |
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" | |
ff11dfa1 | 30 | #include "frame.h" |
284f4730 JB |
31 | #include "window.h" |
32 | #include "commands.h" | |
33 | #include "buffer.h" | |
37cd9f30 | 34 | #include "charset.h" |
284f4730 | 35 | #include "disptab.h" |
f4255cd1 | 36 | #include "dispextern.h" |
284f4730 | 37 | #include "keyboard.h" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.h" |
9ac0d9e0 | 40 | #include "blockinput.h" |
e8886a1d | 41 | #include "puresize.h" |
8a9f5d3c GM |
42 | #include "systime.h" |
43 | #include "atimer.h" | |
284f4730 JB |
44 | #include <setjmp.h> |
45 | #include <errno.h> | |
46 | ||
80e4aa30 RS |
47 | #ifdef MSDOS |
48 | #include "msdos.h" | |
49 | #include <time.h> | |
50 | #else /* not MSDOS */ | |
284f4730 JB |
51 | #ifndef VMS |
52 | #include <sys/ioctl.h> | |
284f4730 | 53 | #endif |
80e4aa30 | 54 | #endif /* not MSDOS */ |
284f4730 | 55 | |
52baf19e | 56 | #include "syssignal.h" |
6ef5b54f | 57 | #include "systty.h" |
52baf19e | 58 | |
03cee6ae GM |
59 | #include <sys/types.h> |
60 | #ifdef HAVE_UNISTD_H | |
61 | #include <unistd.h> | |
62 | #endif | |
63 | ||
c5e3b6c5 RS |
64 | /* This is to get the definitions of the XK_ symbols. */ |
65 | #ifdef HAVE_X_WINDOWS | |
66 | #include "xterm.h" | |
67 | #endif | |
68 | ||
e98a93eb GV |
69 | #ifdef HAVE_NTGUI |
70 | #include "w32term.h" | |
71 | #endif /* HAVE_NTGUI */ | |
72 | ||
0c2611c5 RS |
73 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
74 | #include "systime.h" | |
75 | ||
52baf19e JB |
76 | extern int errno; |
77 | ||
9ac0d9e0 JB |
78 | /* Variables for blockinput.h: */ |
79 | ||
80 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 81 | int interrupt_input_blocked; |
9ac0d9e0 JB |
82 | |
83 | /* Nonzero means an input interrupt has arrived | |
84 | during the current critical section. */ | |
63927c41 | 85 | int interrupt_input_pending; |
9ac0d9e0 JB |
86 | |
87 | ||
437f6112 RS |
88 | /* File descriptor to use for input. */ |
89 | extern int input_fd; | |
284f4730 | 90 | |
e98a93eb | 91 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 92 | /* Make all keyboard buffers much bigger when using X windows. */ |
f019cded RS |
93 | #ifdef macintosh |
94 | /* But not too big (local data > 32K error) if on macintosh */ | |
95 | #define KBD_BUFFER_SIZE 512 | |
96 | #else | |
284f4730 | 97 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 98 | #endif |
284f4730 JB |
99 | #else /* No X-windows, character input */ |
100 | #define KBD_BUFFER_SIZE 256 | |
101 | #endif /* No X-windows */ | |
102 | ||
103 | /* Following definition copied from eval.c */ | |
104 | ||
105 | struct backtrace | |
106 | { | |
107 | struct backtrace *next; | |
108 | Lisp_Object *function; | |
109 | Lisp_Object *args; /* Points to vector of args. */ | |
110 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
111 | args points to slot holding list of | |
112 | unevalled args */ | |
113 | char evalargs; | |
114 | }; | |
115 | ||
c5fdd383 KH |
116 | #ifdef MULTI_KBOARD |
117 | KBOARD *initial_kboard; | |
118 | KBOARD *current_kboard; | |
119 | KBOARD *all_kboards; | |
1e8bd3da | 120 | int single_kboard; |
6c6083a9 | 121 | #else |
c5fdd383 | 122 | KBOARD the_only_kboard; |
6c6083a9 | 123 | #endif |
612b78ef | 124 | |
284f4730 JB |
125 | /* Non-nil disable property on a command means |
126 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 127 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
128 | |
129 | #define NUM_RECENT_KEYS (100) | |
130 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
131 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 132 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 133 | |
6569cc8d JB |
134 | /* Vector holding the key sequence that invoked the current command. |
135 | It is reused for each command, and it may be longer than the current | |
136 | sequence; this_command_key_count indicates how many elements | |
137 | actually mean something. | |
138 | It's easier to staticpro a single Lisp_Object than an array. */ | |
139 | Lisp_Object this_command_keys; | |
140 | int this_command_key_count; | |
284f4730 | 141 | |
7d18f9ae RS |
142 | /* This vector is used as a buffer to record the events that were actually read |
143 | by read_key_sequence. */ | |
144 | Lisp_Object raw_keybuf; | |
145 | int raw_keybuf_count; | |
146 | ||
147 | #define GROW_RAW_KEYBUF \ | |
148 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
149 | { \ | |
150 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
151 | Lisp_Object new; \ | |
152 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
153 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
154 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
155 | raw_keybuf = new; \ | |
156 | } | |
157 | ||
6321824f RS |
158 | /* Number of elements of this_command_keys |
159 | that precede this key sequence. */ | |
160 | int this_single_command_key_start; | |
161 | ||
71918b75 RS |
162 | /* Record values of this_command_key_count and echo_length () |
163 | before this command was read. */ | |
164 | static int before_command_key_count; | |
165 | static int before_command_echo_length; | |
166 | /* Values of before_command_key_count and before_command_echo_length | |
167 | saved by reset-this-command-lengths. */ | |
168 | static int before_command_key_count_1; | |
169 | static int before_command_echo_length_1; | |
170 | /* Flag set by reset-this-command-lengths, | |
171 | saying to reset the lengths when add_command_key is called. */ | |
172 | static int before_command_restore_flag; | |
173 | ||
284f4730 JB |
174 | extern int minbuf_level; |
175 | ||
a59b172a RS |
176 | extern int message_enable_multibyte; |
177 | ||
284f4730 JB |
178 | extern struct backtrace *backtrace_list; |
179 | ||
7ee32cda GM |
180 | /* If non-nil, the function that implements the display of help. |
181 | It's called with one argument, the help string to display. */ | |
182 | ||
183 | Lisp_Object Vshow_help_function; | |
184 | ||
284f4730 JB |
185 | /* Nonzero means do menu prompting. */ |
186 | static int menu_prompting; | |
187 | ||
188 | /* Character to see next line of menu prompt. */ | |
189 | static Lisp_Object menu_prompt_more_char; | |
190 | ||
191 | /* For longjmp to where kbd input is being done. */ | |
192 | static jmp_buf getcjmp; | |
193 | ||
194 | /* True while doing kbd input. */ | |
195 | int waiting_for_input; | |
196 | ||
197 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 198 | |
284f4730 JB |
199 | static int echoing; |
200 | ||
985f9f66 GM |
201 | /* Non-null means we can start echoing at the next input pause even |
202 | though there is something in the echo area. */ | |
203 | ||
204 | static struct kboard *ok_to_echo_at_next_pause; | |
205 | ||
206 | /* The kboard currently echoing, or null for none. Set in echo_now to | |
207 | the kboard echoing. Reset to 0 in cancel_echoing. If non-null, | |
208 | and a current echo area message exists, we know that it comes from | |
209 | echoing. */ | |
210 | ||
211 | static struct kboard *echo_kboard; | |
1fc93d49 | 212 | |
03361bcc RS |
213 | /* Nonzero means disregard local maps for the menu bar. */ |
214 | static int inhibit_local_menu_bar_menus; | |
215 | ||
80e4aa30 | 216 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
217 | int immediate_quit; |
218 | ||
fa90970d RS |
219 | /* The user's ERASE setting. */ |
220 | Lisp_Object Vtty_erase_char; | |
221 | ||
284f4730 | 222 | /* Character to recognize as the help char. */ |
7e85b935 | 223 | Lisp_Object Vhelp_char; |
284f4730 | 224 | |
ecb7cb34 KH |
225 | /* List of other event types to recognize as meaning "help". */ |
226 | Lisp_Object Vhelp_event_list; | |
227 | ||
284f4730 JB |
228 | /* Form to execute when help char is typed. */ |
229 | Lisp_Object Vhelp_form; | |
230 | ||
7e85b935 RS |
231 | /* Command to run when the help character follows a prefix key. */ |
232 | Lisp_Object Vprefix_help_command; | |
233 | ||
9f9c0e27 RS |
234 | /* List of items that should move to the end of the menu bar. */ |
235 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 236 | |
6526ab49 RS |
237 | /* Non-nil means show the equivalent key-binding for |
238 | any M-x command that has one. | |
239 | The value can be a length of time to show the message for. | |
240 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
241 | Lisp_Object Vsuggest_key_bindings; | |
242 | ||
284f4730 JB |
243 | /* Character that causes a quit. Normally C-g. |
244 | ||
245 | If we are running on an ordinary terminal, this must be an ordinary | |
246 | ASCII char, since we want to make it our interrupt character. | |
247 | ||
248 | If we are not running on an ordinary terminal, it still needs to be | |
249 | an ordinary ASCII char. This character needs to be recognized in | |
250 | the input interrupt handler. At this point, the keystroke is | |
251 | represented as a struct input_event, while the desired quit | |
252 | character is specified as a lispy event. The mapping from struct | |
253 | input_events to lispy events cannot run in an interrupt handler, | |
254 | and the reverse mapping is difficult for anything but ASCII | |
255 | keystrokes. | |
256 | ||
257 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
258 | ASCII character. */ | |
259 | int quit_char; | |
260 | ||
261 | extern Lisp_Object current_global_map; | |
262 | extern int minibuf_level; | |
263 | ||
9dd3131c RS |
264 | /* If non-nil, this is a map that overrides all other local maps. */ |
265 | Lisp_Object Voverriding_local_map; | |
266 | ||
d0a49716 RS |
267 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
268 | Lisp_Object Voverriding_local_map_menu_flag; | |
269 | ||
7f07d5ca RS |
270 | /* Keymap that defines special misc events that should |
271 | be processed immediately at a low level. */ | |
272 | Lisp_Object Vspecial_event_map; | |
273 | ||
284f4730 JB |
274 | /* Current depth in recursive edits. */ |
275 | int command_loop_level; | |
276 | ||
277 | /* Total number of times command_loop has read a key sequence. */ | |
278 | int num_input_keys; | |
279 | ||
280 | /* Last input character read as a command. */ | |
281 | Lisp_Object last_command_char; | |
282 | ||
7d6de002 RS |
283 | /* Last input character read as a command, not counting menus |
284 | reached by the mouse. */ | |
285 | Lisp_Object last_nonmenu_event; | |
286 | ||
284f4730 JB |
287 | /* Last input character read for any purpose. */ |
288 | Lisp_Object last_input_char; | |
289 | ||
dbc4e1c1 | 290 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 291 | Lisp_Object Vunread_command_events; |
284f4730 | 292 | |
7d18f9ae RS |
293 | /* If not Qnil, a list of objects to be read as subsequent command input |
294 | including input method processing. */ | |
295 | Lisp_Object Vunread_input_method_events; | |
296 | ||
297 | /* If not Qnil, a list of objects to be read as subsequent command input | |
298 | but NOT including input method processing. */ | |
299 | Lisp_Object Vunread_post_input_method_events; | |
300 | ||
86e5706b RS |
301 | /* If not -1, an event to be read as subsequent command input. */ |
302 | int unread_command_char; | |
303 | ||
cd21b839 JB |
304 | /* If not Qnil, this is a switch-frame event which we decided to put |
305 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 306 | next command input, after any unread_command_events. |
8f805655 JB |
307 | |
308 | read_key_sequence uses this to delay switch-frame events until the | |
309 | end of the key sequence; Fread_char uses it to put off switch-frame | |
310 | events until a non-ASCII event is acceptable as input. */ | |
311 | Lisp_Object unread_switch_frame; | |
cd21b839 | 312 | |
9fa4395d RS |
313 | /* A mask of extra modifier bits to put into every keyboard char. */ |
314 | int extra_keyboard_modifiers; | |
315 | ||
284f4730 JB |
316 | /* Char to use as prefix when a meta character is typed in. |
317 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
318 | ||
319 | Lisp_Object meta_prefix_char; | |
320 | ||
321 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
322 | static int last_non_minibuf_size; | |
323 | ||
06ef7355 | 324 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
325 | static Lisp_Object Vauto_save_timeout; |
326 | ||
327 | /* Total number of times read_char has returned. */ | |
4abfba1f | 328 | int num_input_events; |
284f4730 | 329 | |
51172b6d | 330 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 331 | int num_nonmacro_input_events; |
51172b6d | 332 | |
284f4730 JB |
333 | /* Auto-save automatically when this many characters have been typed |
334 | since the last time. */ | |
335 | ||
336 | static int auto_save_interval; | |
337 | ||
c43b1734 | 338 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
339 | |
340 | int last_auto_save; | |
341 | ||
284f4730 | 342 | /* The command being executed by the command loop. |
6c7178b9 KH |
343 | Commands may set this, and the value set will be copied into |
344 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
345 | Lisp_Object Vthis_command; |
346 | ||
347 | /* This is like Vthis_command, except that commands never set it. */ | |
348 | Lisp_Object real_this_command; | |
284f4730 | 349 | |
b453f72e KH |
350 | /* The value of point when the last command was executed. */ |
351 | int last_point_position; | |
352 | ||
047688cb RS |
353 | /* The buffer that was current when the last command was started. */ |
354 | Lisp_Object last_point_position_buffer; | |
355 | ||
4c52b668 KH |
356 | /* The frame in which the last input event occurred, or Qmacro if the |
357 | last event came from a macro. We use this to determine when to | |
358 | generate switch-frame events. This may be cleared by functions | |
359 | like Fselect_frame, to make sure that a switch-frame event is | |
360 | generated by the next character. */ | |
361 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
362 | |
363 | /* A user-visible version of the above, intended to allow users to | |
364 | figure out where the last event came from, if the event doesn't | |
365 | carry that information itself (i.e. if it was a character). */ | |
366 | Lisp_Object Vlast_event_frame; | |
367 | ||
1113d9db JB |
368 | /* The timestamp of the last input event we received from the X server. |
369 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
370 | unsigned long last_event_timestamp; |
371 | ||
372 | Lisp_Object Qself_insert_command; | |
373 | Lisp_Object Qforward_char; | |
374 | Lisp_Object Qbackward_char; | |
e58aa385 | 375 | Lisp_Object Qundefined; |
d925fb39 | 376 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
377 | |
378 | /* read_key_sequence stores here the command definition of the | |
379 | key sequence that it reads. */ | |
380 | Lisp_Object read_key_sequence_cmd; | |
381 | ||
39aab679 DL |
382 | /* Echo unfinished commands after this many seconds of pause. */ |
383 | Lisp_Object Vecho_keystrokes; | |
384 | ||
284f4730 JB |
385 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
386 | Lisp_Object Vtop_level; | |
387 | ||
388 | /* User-supplied string to translate input characters through. */ | |
389 | Lisp_Object Vkeyboard_translate_table; | |
390 | ||
391 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
392 | extern Lisp_Object Vfunction_key_map; | |
393 | ||
e0301c07 RS |
394 | /* Another keymap that maps key sequences into key sequences. |
395 | This one takes precedence over ordinary definitions. */ | |
396 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 397 | |
7d18f9ae RS |
398 | /* If non-nil, this implements the current input method. */ |
399 | Lisp_Object Vinput_method_function; | |
400 | Lisp_Object Qinput_method_function; | |
401 | ||
d5eecefb RS |
402 | /* When we call Vinput_method_function, |
403 | this holds the echo area message that was just erased. */ | |
404 | Lisp_Object Vinput_method_previous_message; | |
405 | ||
86e5706b RS |
406 | /* Non-nil means deactivate the mark at end of this command. */ |
407 | Lisp_Object Vdeactivate_mark; | |
408 | ||
48e416d4 RS |
409 | /* Menu bar specified in Lucid Emacs fashion. */ |
410 | ||
411 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
412 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
413 | ||
cdb9d665 RS |
414 | Lisp_Object Qecho_area_clear_hook; |
415 | ||
86e5706b | 416 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
417 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
418 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 419 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
420 | /* Hook run after a command if there's no more input soon. */ |
421 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
422 | ||
423 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
424 | int post_command_idle_delay; | |
86e5706b | 425 | |
8a792f3a RS |
426 | /* List of deferred actions to be performed at a later time. |
427 | The precise format isn't relevant here; we just check whether it is nil. */ | |
428 | Lisp_Object Vdeferred_action_list; | |
429 | ||
430 | /* Function to call to handle deferred actions, when there are any. */ | |
431 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 432 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 433 | |
d5eecefb RS |
434 | Lisp_Object Qinput_method_exit_on_first_char; |
435 | Lisp_Object Qinput_method_use_echo_area; | |
436 | ||
284f4730 JB |
437 | /* File in which we write all commands we read. */ |
438 | FILE *dribble; | |
439 | ||
440 | /* Nonzero if input is available. */ | |
441 | int input_pending; | |
442 | ||
b04904fb RS |
443 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
444 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
445 | ||
284f4730 JB |
446 | int meta_key; |
447 | ||
448 | extern char *pending_malloc_warning; | |
449 | ||
beecf6a1 KH |
450 | /* Circular buffer for pre-read keyboard input. */ |
451 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
452 | ||
453 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
454 | ||
455 | The interrupt-level event handlers will never enqueue an event on a | |
456 | frame which is not in Vframe_list, and once an event is dequeued, | |
457 | internal_last_event_frame or the event itself points to the frame. | |
458 | So that's all fine. | |
459 | ||
460 | But while the event is sitting in the queue, it's completely | |
461 | unprotected. Suppose the user types one command which will run for | |
462 | a while and then delete a frame, and then types another event at | |
463 | the frame that will be deleted, before the command gets around to | |
464 | it. Suppose there are no references to this frame elsewhere in | |
465 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
466 | have an event referring to a freed frame, which will crash Emacs | |
467 | when it is dequeued. | |
468 | ||
469 | Similar things happen when an event on a scroll bar is enqueued; the | |
470 | window may be deleted while the event is in the queue. | |
471 | ||
472 | So, we use this vector to protect the frame_or_window field in the | |
473 | event queue. That way, they'll be dequeued as dead frames or | |
474 | windows, but still valid lisp objects. | |
475 | ||
476 | If kbd_buffer[i].kind != no_event, then | |
477 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
478 | == kbd_buffer[i].frame_or_window. */ | |
479 | static Lisp_Object kbd_buffer_frame_or_window; | |
480 | ||
481 | /* Pointer to next available character in kbd_buffer. | |
482 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
483 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
484 | next available char is in kbd_buffer[0]. */ | |
485 | static struct input_event *kbd_fetch_ptr; | |
486 | ||
487 | /* Pointer to next place to store character in kbd_buffer. This | |
488 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
489 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 490 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
491 | |
492 | /* The above pair of variables forms a "queue empty" flag. When we | |
493 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
494 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
495 | there is input available iff the two pointers are not equal. | |
496 | ||
497 | Why not just have a flag set and cleared by the enqueuing and | |
498 | dequeuing functions? Such a flag could be screwed up by interrupts | |
499 | at inopportune times. */ | |
500 | ||
f3253854 | 501 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
502 | mouse moves, and motion events will appear in the input stream. |
503 | Otherwise, mouse motion is ignored. */ | |
504 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 505 | |
284f4730 JB |
506 | /* Symbols to head events. */ |
507 | Lisp_Object Qmouse_movement; | |
3c370943 | 508 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 509 | Lisp_Object Qswitch_frame; |
bbdc2092 | 510 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
511 | Lisp_Object Qiconify_frame; |
512 | Lisp_Object Qmake_frame_visible; | |
7ee32cda | 513 | Lisp_Object Qhelp_echo; |
cd21b839 | 514 | |
284f4730 JB |
515 | /* Symbols to denote kinds of events. */ |
516 | Lisp_Object Qfunction_key; | |
517 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
518 | #ifdef WINDOWSNT |
519 | Lisp_Object Qmouse_wheel; | |
1161d367 | 520 | Lisp_Object Qlanguage_change; |
07de30b9 | 521 | #endif |
a24dc617 | 522 | Lisp_Object Qdrag_n_drop; |
284f4730 | 523 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
524 | |
525 | /* Properties of event headers. */ | |
526 | Lisp_Object Qevent_kind; | |
88cb0656 | 527 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 528 | |
e8886a1d RS |
529 | /* menu item parts */ |
530 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 531 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
532 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
533 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
534 | extern Lisp_Object Vdefine_key_rebound_commands; |
535 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 536 | |
0a7f1fc0 JB |
537 | /* An event header symbol HEAD may have a property named |
538 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
539 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
540 | mask of modifiers applied to it. If present, this is used to help | |
541 | speed up parse_modifiers. */ | |
542 | Lisp_Object Qevent_symbol_element_mask; | |
543 | ||
544 | /* An unmodified event header BASE may have a property named | |
545 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
546 | modified versions of BASE. If present, this helps speed up | |
547 | apply_modifiers. */ | |
548 | Lisp_Object Qmodifier_cache; | |
549 | ||
5ec75a55 | 550 | /* Symbols to use for parts of windows. */ |
284f4730 | 551 | Lisp_Object Qmode_line; |
e5d77022 | 552 | Lisp_Object Qvertical_line; |
3c370943 | 553 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
554 | Lisp_Object Qmenu_bar; |
555 | ||
f4255cd1 JB |
556 | Lisp_Object recursive_edit_unwind (), command_loop (); |
557 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 558 | Lisp_Object Qextended_command_history; |
c04cbc3b | 559 | EMACS_TIME timer_check (); |
284f4730 | 560 | |
f4385381 RS |
561 | extern Lisp_Object Vhistory_length; |
562 | ||
2c834fb3 KH |
563 | extern char *x_get_keysym_name (); |
564 | ||
8eb4d8ef RS |
565 | static void record_menu_key (); |
566 | ||
f4eef8b4 RS |
567 | Lisp_Object Qpolling_period; |
568 | ||
d9d4c147 | 569 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
570 | Lisp_Object Vtimer_list; |
571 | ||
d9d4c147 KH |
572 | /* List of idle time timers. Appears in order of next scheduled event. */ |
573 | Lisp_Object Vtimer_idle_list; | |
574 | ||
87dd9b9b RS |
575 | /* Incremented whenever a timer is run. */ |
576 | int timers_run; | |
577 | ||
a9f16aa9 KH |
578 | extern Lisp_Object Vprint_level, Vprint_length; |
579 | ||
ffd56f97 JB |
580 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
581 | happens. */ | |
582 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
583 | |
584 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
585 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
586 | int interrupt_input; | |
587 | ||
588 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
589 | int interrupts_deferred; | |
590 | ||
87dd9b9b | 591 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
592 | int flow_control; |
593 | ||
284f4730 JB |
594 | /* Allow m- file to inhibit use of FIONREAD. */ |
595 | #ifdef BROKEN_FIONREAD | |
596 | #undef FIONREAD | |
597 | #endif | |
598 | ||
599 | /* We are unable to use interrupts if FIONREAD is not available, | |
600 | so flush SIGIO so we won't try. */ | |
601 | #ifndef FIONREAD | |
602 | #ifdef SIGIO | |
603 | #undef SIGIO | |
604 | #endif | |
605 | #endif | |
606 | ||
e98a93eb | 607 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 608 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 609 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
610 | #define POLL_FOR_INPUT |
611 | #endif | |
adf5cb9c KH |
612 | |
613 | /* After a command is executed, if point is moved into a region that | |
614 | has specific properties (e.g. composition, display), we adjust | |
615 | point to the boundary of the region. But, if a command sets this | |
616 | valiable to non-nil, we suppress this point adjustment. This | |
617 | variable is set to nil before reading a command. */ | |
618 | Lisp_Object Vdisable_point_adjustment; | |
619 | ||
620 | /* If non-nil, always disable point adjustment. */ | |
621 | Lisp_Object Vglobal_disable_point_adjustment; | |
622 | ||
284f4730 JB |
623 | \f |
624 | /* Global variable declarations. */ | |
625 | ||
626 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
627 | void (*keyboard_init_hook) (); | |
628 | ||
629 | static int read_avail_input (); | |
630 | static void get_input_pending (); | |
9fd7d808 | 631 | static int readable_events (); |
8150596a RS |
632 | static Lisp_Object read_char_x_menu_prompt (); |
633 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 634 | static Lisp_Object make_lispy_event (); |
514354e9 | 635 | #ifdef HAVE_MOUSE |
a612e298 | 636 | static Lisp_Object make_lispy_movement (); |
514354e9 | 637 | #endif |
a612e298 RS |
638 | static Lisp_Object modify_event_symbol (); |
639 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 640 | static int parse_solitary_modifier (); |
dfcf069d AS |
641 | static void save_getcjmp (); |
642 | static void restore_getcjmp (); | |
7ee32cda | 643 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
284f4730 | 644 | |
8026024c KH |
645 | /* Nonzero means don't try to suspend even if the operating system seems |
646 | to support it. */ | |
647 | static int cannot_suspend; | |
648 | ||
284f4730 JB |
649 | #define min(a,b) ((a)<(b)?(a):(b)) |
650 | #define max(a,b) ((a)>(b)?(a):(b)) | |
651 | ||
652 | /* Install the string STR as the beginning of the string of echoing, | |
653 | so that it serves as a prompt for the next character. | |
654 | Also start echoing. */ | |
655 | ||
dfcf069d | 656 | void |
284f4730 JB |
657 | echo_prompt (str) |
658 | char *str; | |
659 | { | |
660 | int len = strlen (str); | |
7a80a6f6 | 661 | |
ba72822c KH |
662 | if (len > ECHOBUFSIZE - 4) |
663 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
664 | bcopy (str, current_kboard->echobuf, len); |
665 | current_kboard->echoptr = current_kboard->echobuf + len; | |
666 | *current_kboard->echoptr = '\0'; | |
284f4730 | 667 | |
c5fdd383 | 668 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 669 | |
3dbd9ee4 | 670 | echo_now (); |
284f4730 JB |
671 | } |
672 | ||
df0f2ba1 | 673 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
674 | C can be a character, which is printed prettily ("M-C-x" and all that |
675 | jazz), or a symbol, whose name is printed. */ | |
676 | ||
dfcf069d | 677 | void |
284f4730 JB |
678 | echo_char (c) |
679 | Lisp_Object c; | |
680 | { | |
681 | extern char *push_key_description (); | |
682 | ||
c5fdd383 | 683 | if (current_kboard->immediate_echo) |
284f4730 | 684 | { |
c5fdd383 | 685 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 686 | |
c5fdd383 | 687 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
688 | *ptr++ = ' '; |
689 | ||
690 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 691 | c = EVENT_HEAD (c); |
284f4730 | 692 | |
8c18cbfb | 693 | if (INTEGERP (c)) |
284f4730 | 694 | { |
2d0ffc9a KH |
695 | if (ptr - current_kboard->echobuf |
696 | > ECHOBUFSIZE - KEY_DESCRIPTION_SIZE) | |
284f4730 JB |
697 | return; |
698 | ||
cb5df6ae | 699 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 700 | } |
8c18cbfb | 701 | else if (SYMBOLP (c)) |
284f4730 JB |
702 | { |
703 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 704 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 705 | > ECHOBUFSIZE) |
284f4730 | 706 | return; |
fc932ac6 RS |
707 | bcopy (name->data, ptr, STRING_BYTES (name)); |
708 | ptr += STRING_BYTES (name); | |
284f4730 JB |
709 | } |
710 | ||
c5fdd383 | 711 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 712 | && help_char_p (c)) |
284f4730 JB |
713 | { |
714 | strcpy (ptr, " (Type ? for further options)"); | |
715 | ptr += strlen (ptr); | |
716 | } | |
717 | ||
718 | *ptr = 0; | |
c5fdd383 | 719 | current_kboard->echoptr = ptr; |
284f4730 | 720 | |
3dbd9ee4 | 721 | echo_now (); |
284f4730 JB |
722 | } |
723 | } | |
724 | ||
725 | /* Temporarily add a dash to the end of the echo string if it's not | |
726 | empty, so that it serves as a mini-prompt for the very next character. */ | |
727 | ||
dfcf069d | 728 | void |
284f4730 JB |
729 | echo_dash () |
730 | { | |
c5fdd383 KH |
731 | if (!current_kboard->immediate_echo |
732 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 733 | return; |
7a80a6f6 | 734 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
735 | if (current_kboard->echo_after_prompt |
736 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 737 | return; |
4bafa972 | 738 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 739 | if (current_kboard->echoptr == 0) |
4bafa972 | 740 | return; |
284f4730 JB |
741 | |
742 | /* Put a dash at the end of the buffer temporarily, | |
743 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
744 | current_kboard->echoptr[0] = '-'; |
745 | current_kboard->echoptr[1] = 0; | |
284f4730 | 746 | |
3dbd9ee4 | 747 | echo_now (); |
284f4730 JB |
748 | } |
749 | ||
750 | /* Display the current echo string, and begin echoing if not already | |
751 | doing so. */ | |
752 | ||
07a59269 | 753 | void |
3dbd9ee4 | 754 | echo_now () |
284f4730 | 755 | { |
c5fdd383 | 756 | if (!current_kboard->immediate_echo) |
284f4730 JB |
757 | { |
758 | int i; | |
c5fdd383 | 759 | current_kboard->immediate_echo = 1; |
284f4730 JB |
760 | |
761 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
762 | { |
763 | Lisp_Object c; | |
764 | c = XVECTOR (this_command_keys)->contents[i]; | |
765 | if (! (EVENT_HAS_PARAMETERS (c) | |
766 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
767 | echo_char (c); | |
768 | } | |
284f4730 JB |
769 | echo_dash (); |
770 | } | |
771 | ||
772 | echoing = 1; | |
985f9f66 | 773 | echo_kboard = current_kboard; |
301738ed RS |
774 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
775 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 JB |
776 | echoing = 0; |
777 | ||
778 | if (waiting_for_input && !NILP (Vquit_flag)) | |
779 | quit_throw_to_read_char (); | |
780 | } | |
781 | ||
782 | /* Turn off echoing, for the start of a new command. */ | |
783 | ||
dfcf069d | 784 | void |
284f4730 JB |
785 | cancel_echoing () |
786 | { | |
c5fdd383 KH |
787 | current_kboard->immediate_echo = 0; |
788 | current_kboard->echoptr = current_kboard->echobuf; | |
789 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 790 | ok_to_echo_at_next_pause = 0; |
985f9f66 | 791 | echo_kboard = 0; |
284f4730 JB |
792 | } |
793 | ||
794 | /* Return the length of the current echo string. */ | |
795 | ||
796 | static int | |
797 | echo_length () | |
798 | { | |
c5fdd383 | 799 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
800 | } |
801 | ||
802 | /* Truncate the current echo message to its first LEN chars. | |
803 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 804 | switches frames while entering a key sequence. */ |
284f4730 JB |
805 | |
806 | static void | |
807 | echo_truncate (len) | |
808 | int len; | |
809 | { | |
c5fdd383 KH |
810 | current_kboard->echobuf[len] = '\0'; |
811 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 812 | truncate_echo_area (len); |
284f4730 JB |
813 | } |
814 | ||
815 | \f | |
816 | /* Functions for manipulating this_command_keys. */ | |
817 | static void | |
818 | add_command_key (key) | |
819 | Lisp_Object key; | |
820 | { | |
6569cc8d JB |
821 | int size = XVECTOR (this_command_keys)->size; |
822 | ||
71918b75 RS |
823 | /* If reset-this-command-length was called recently, obey it now. |
824 | See the doc string of that function for an explanation of why. */ | |
825 | if (before_command_restore_flag) | |
826 | { | |
827 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
828 | if (this_command_key_count < this_single_command_key_start) |
829 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
830 | echo_truncate (before_command_echo_length_1); |
831 | before_command_restore_flag = 0; | |
832 | } | |
833 | ||
6569cc8d | 834 | if (this_command_key_count >= size) |
284f4730 | 835 | { |
9b8eb840 | 836 | Lisp_Object new_keys; |
6569cc8d | 837 | |
9b8eb840 | 838 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
839 | bcopy (XVECTOR (this_command_keys)->contents, |
840 | XVECTOR (new_keys)->contents, | |
8f805655 | 841 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
842 | |
843 | this_command_keys = new_keys; | |
284f4730 | 844 | } |
6569cc8d JB |
845 | |
846 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
847 | } |
848 | \f | |
849 | Lisp_Object | |
850 | recursive_edit_1 () | |
851 | { | |
852 | int count = specpdl_ptr - specpdl; | |
853 | Lisp_Object val; | |
854 | ||
855 | if (command_loop_level > 0) | |
856 | { | |
857 | specbind (Qstandard_output, Qt); | |
858 | specbind (Qstandard_input, Qt); | |
859 | } | |
860 | ||
861 | val = command_loop (); | |
862 | if (EQ (val, Qt)) | |
863 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
864 | /* Handle throw from read_minibuf when using minibuffer |
865 | while it's active but we're in another window. */ | |
866 | if (STRINGP (val)) | |
867 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 868 | |
cb5df6ae | 869 | return unbind_to (count, Qnil); |
284f4730 JB |
870 | } |
871 | ||
872 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 873 | |
07a59269 | 874 | void |
284f4730 JB |
875 | record_auto_save () |
876 | { | |
c43b1734 | 877 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 878 | } |
5846638c RS |
879 | |
880 | /* Make an auto save happen as soon as possible at command level. */ | |
881 | ||
dfcf069d | 882 | void |
5846638c RS |
883 | force_auto_save_soon () |
884 | { | |
885 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
886 | |
887 | record_asynch_buffer_change (); | |
5846638c | 888 | } |
284f4730 | 889 | \f |
284f4730 JB |
890 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
891 | "Invoke the editor command loop recursively.\n\ | |
892 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
893 | that tells this function to return.\n\ | |
894 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
895 | This function is called by the editor initialization to begin editing.") | |
896 | () | |
897 | { | |
898 | int count = specpdl_ptr - specpdl; | |
284f4730 JB |
899 | |
900 | command_loop_level++; | |
901 | update_mode_lines = 1; | |
902 | ||
903 | record_unwind_protect (recursive_edit_unwind, | |
904 | (command_loop_level | |
905 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
906 | ? Fcurrent_buffer () | |
907 | : Qnil); | |
908 | recursive_edit_1 (); | |
909 | return unbind_to (count, Qnil); | |
910 | } | |
911 | ||
912 | Lisp_Object | |
913 | recursive_edit_unwind (buffer) | |
914 | Lisp_Object buffer; | |
915 | { | |
916 | if (!NILP (buffer)) | |
917 | Fset_buffer (buffer); | |
918 | ||
919 | command_loop_level--; | |
920 | update_mode_lines = 1; | |
921 | return Qnil; | |
922 | } | |
923 | \f | |
604ccd1d | 924 | static void |
1e8bd3da | 925 | any_kboard_state () |
604ccd1d | 926 | { |
1e8bd3da RS |
927 | #ifdef MULTI_KBOARD |
928 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
929 | it will right away be read by read_key_sequence, | |
930 | and then if we do switch KBOARDS, it will go into the side | |
931 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 932 | if (CONSP (Vunread_command_events)) |
4524b161 | 933 | { |
c5fdd383 KH |
934 | current_kboard->kbd_queue |
935 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
936 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 937 | } |
604ccd1d | 938 | Vunread_command_events = Qnil; |
1e8bd3da RS |
939 | #endif |
940 | single_kboard = 0; | |
941 | #endif | |
604ccd1d | 942 | } |
1e8bd3da RS |
943 | |
944 | /* Switch to the single-kboard state, making current_kboard | |
945 | the only KBOARD from which further input is accepted. */ | |
946 | ||
947 | void | |
948 | single_kboard_state () | |
949 | { | |
950 | #ifdef MULTI_KBOARD | |
951 | single_kboard = 1; | |
604ccd1d | 952 | #endif |
1e8bd3da RS |
953 | } |
954 | ||
955 | /* Maintain a stack of kboards, so other parts of Emacs | |
956 | can switch temporarily to the kboard of a given frame | |
957 | and then revert to the previous status. */ | |
958 | ||
959 | struct kboard_stack | |
960 | { | |
961 | KBOARD *kboard; | |
962 | struct kboard_stack *next; | |
963 | }; | |
964 | ||
965 | static struct kboard_stack *kboard_stack; | |
966 | ||
967 | void | |
968 | push_frame_kboard (f) | |
969 | FRAME_PTR f; | |
970 | { | |
ab48365b | 971 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
972 | struct kboard_stack *p |
973 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
974 | ||
975 | p->next = kboard_stack; | |
976 | p->kboard = current_kboard; | |
977 | kboard_stack = p; | |
978 | ||
979 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 980 | #endif |
1e8bd3da RS |
981 | } |
982 | ||
983 | void | |
984 | pop_frame_kboard () | |
985 | { | |
ab48365b | 986 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
987 | struct kboard_stack *p = kboard_stack; |
988 | current_kboard = p->kboard; | |
989 | kboard_stack = p->next; | |
990 | xfree (p); | |
ab48365b | 991 | #endif |
1e8bd3da RS |
992 | } |
993 | \f | |
994 | /* Handle errors that are not handled at inner levels | |
995 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 996 | |
284f4730 JB |
997 | Lisp_Object |
998 | cmd_error (data) | |
999 | Lisp_Object data; | |
a1341f75 | 1000 | { |
a9f16aa9 | 1001 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1002 | char macroerror[50]; |
1003 | ||
1004 | if (!NILP (executing_macro)) | |
1005 | { | |
1006 | if (executing_macro_iterations == 1) | |
1007 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1008 | else | |
1009 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1010 | executing_macro_iterations); | |
1011 | } | |
1012 | else | |
1013 | *macroerror = 0; | |
a9f16aa9 | 1014 | |
a1341f75 RS |
1015 | Vstandard_output = Qt; |
1016 | Vstandard_input = Qt; | |
1017 | Vexecuting_macro = Qnil; | |
9f58e89e | 1018 | executing_macro = Qnil; |
d8bcf58e | 1019 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1020 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1021 | cancel_echoing (); |
a9f16aa9 KH |
1022 | |
1023 | /* Avoid unquittable loop if data contains a circular list. */ | |
1024 | old_level = Vprint_level; | |
1025 | old_length = Vprint_length; | |
0c04a67e RS |
1026 | XSETFASTINT (Vprint_level, 10); |
1027 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1028 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1029 | Vprint_level = old_level; |
1030 | Vprint_length = old_length; | |
a1341f75 RS |
1031 | |
1032 | Vquit_flag = Qnil; | |
1033 | ||
1034 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1035 | #ifdef MULTI_KBOARD |
1e8bd3da | 1036 | any_kboard_state (); |
ff4b06d3 | 1037 | #endif |
a1341f75 RS |
1038 | |
1039 | return make_number (0); | |
1040 | } | |
1041 | ||
301738ed RS |
1042 | /* Take actions on handling an error. DATA is the data that describes |
1043 | the error. | |
1044 | ||
1045 | CONTEXT is a C-string containing ASCII characters only which | |
1046 | describes the context in which the error happened. If we need to | |
1047 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1048 | string. */ | |
1049 | ||
07a59269 | 1050 | void |
a1341f75 RS |
1051 | cmd_error_internal (data, context) |
1052 | Lisp_Object data; | |
1053 | char *context; | |
284f4730 | 1054 | { |
284f4730 | 1055 | Lisp_Object stream; |
7ee32cda | 1056 | int kill_emacs_p = 0; |
788f89eb | 1057 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1058 | |
1059 | Vquit_flag = Qnil; | |
1060 | Vinhibit_quit = Qt; | |
985f9f66 | 1061 | clear_message (1, 0); |
284f4730 | 1062 | |
ff11dfa1 | 1063 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1064 | yet, or we're not interactive, it's best to dump this message out |
1065 | to stderr and exit. */ | |
788f89eb | 1066 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1067 | /* This is the case of the frame dumped with Emacs, when we're |
1068 | running under a window system. */ | |
1069 | || (!NILP (Vwindow_system) | |
1070 | && !inhibit_window_system | |
788f89eb | 1071 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1072 | || noninteractive) |
7ee32cda GM |
1073 | { |
1074 | stream = Qexternal_debugging_output; | |
1075 | kill_emacs_p = 1; | |
1076 | } | |
284f4730 JB |
1077 | else |
1078 | { | |
1079 | Fdiscard_input (); | |
1080 | bitch_at_user (); | |
1081 | stream = Qt; | |
1082 | } | |
1083 | ||
a1341f75 RS |
1084 | if (context != 0) |
1085 | write_string_1 (context, -1, stream); | |
1086 | ||
22a51344 | 1087 | print_error_message (data, stream); |
284f4730 | 1088 | |
ff11dfa1 | 1089 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1090 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1091 | if (kill_emacs_p) |
284f4730 JB |
1092 | { |
1093 | Fterpri (stream); | |
1094 | Fkill_emacs (make_number (-1)); | |
1095 | } | |
284f4730 JB |
1096 | } |
1097 | \f | |
1098 | Lisp_Object command_loop_1 (); | |
1099 | Lisp_Object command_loop_2 (); | |
1100 | Lisp_Object top_level_1 (); | |
1101 | ||
1102 | /* Entry to editor-command-loop. | |
1103 | This level has the catches for exiting/returning to editor command loop. | |
1104 | It returns nil to exit recursive edit, t to abort it. */ | |
1105 | ||
1106 | Lisp_Object | |
1107 | command_loop () | |
1108 | { | |
1109 | if (command_loop_level > 0 || minibuf_level > 0) | |
1110 | { | |
07ba902e RS |
1111 | Lisp_Object val; |
1112 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1113 | executing_macro = Qnil; |
1114 | return val; | |
284f4730 JB |
1115 | } |
1116 | else | |
1117 | while (1) | |
1118 | { | |
1119 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1120 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1121 | executing_macro = Qnil; |
df0f2ba1 | 1122 | |
284f4730 JB |
1123 | /* End of file in -batch run causes exit here. */ |
1124 | if (noninteractive) | |
1125 | Fkill_emacs (Qt); | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | /* Here we catch errors in execution of commands within the | |
1130 | editing loop, and reenter the editing loop. | |
1131 | When there is an error, cmd_error runs and returns a non-nil | |
1132 | value to us. A value of nil means that cmd_loop_1 itself | |
1133 | returned due to end of file (or end of kbd macro). */ | |
1134 | ||
1135 | Lisp_Object | |
1136 | command_loop_2 () | |
1137 | { | |
1138 | register Lisp_Object val; | |
1139 | ||
1140 | do | |
1141 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1142 | while (!NILP (val)); | |
1143 | ||
1144 | return Qnil; | |
1145 | } | |
1146 | ||
1147 | Lisp_Object | |
1148 | top_level_2 () | |
1149 | { | |
1150 | return Feval (Vtop_level); | |
1151 | } | |
1152 | ||
1153 | Lisp_Object | |
1154 | top_level_1 () | |
1155 | { | |
1156 | /* On entry to the outer level, run the startup file */ | |
1157 | if (!NILP (Vtop_level)) | |
1158 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1159 | else if (!NILP (Vpurify_flag)) | |
1160 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1161 | else | |
1162 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1163 | return Qnil; | |
1164 | } | |
1165 | ||
1166 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1167 | "Exit all recursive editing levels.") | |
1168 | () | |
1169 | { | |
1170 | Fthrow (Qtop_level, Qnil); | |
1171 | } | |
1172 | ||
1173 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1174 | "Exit from the innermost recursive edit or minibuffer.") | |
1175 | () | |
1176 | { | |
1177 | if (command_loop_level > 0 || minibuf_level > 0) | |
1178 | Fthrow (Qexit, Qnil); | |
1179 | ||
1180 | error ("No recursive edit is in progress"); | |
1181 | } | |
1182 | ||
1183 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1184 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1185 | () | |
1186 | { | |
1187 | if (command_loop_level > 0 || minibuf_level > 0) | |
1188 | Fthrow (Qexit, Qt); | |
1189 | ||
1190 | error ("No recursive edit is in progress"); | |
1191 | } | |
1192 | \f | |
1193 | /* This is the actual command reading loop, | |
1194 | sans error-handling encapsulation. */ | |
1195 | ||
1196 | Lisp_Object Fcommand_execute (); | |
1197 | static int read_key_sequence (); | |
68f297c5 | 1198 | void safe_run_hooks (); |
adf5cb9c | 1199 | static void adjust_point_for_property (); |
284f4730 JB |
1200 | |
1201 | Lisp_Object | |
1202 | command_loop_1 () | |
1203 | { | |
03cee6ae GM |
1204 | Lisp_Object cmd; |
1205 | int lose; | |
284f4730 JB |
1206 | int nonundocount; |
1207 | Lisp_Object keybuf[30]; | |
1208 | int i; | |
284f4730 | 1209 | int no_direct; |
86e5706b RS |
1210 | int prev_modiff; |
1211 | struct buffer *prev_buffer; | |
c5fdd383 | 1212 | #ifdef MULTI_KBOARD |
1e8bd3da | 1213 | int was_locked = single_kboard; |
bded54dd | 1214 | #endif |
284f4730 | 1215 | |
d9b641bb | 1216 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1217 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1218 | Vdeactivate_mark = Qnil; |
284f4730 | 1219 | waiting_for_input = 0; |
df0f2ba1 | 1220 | cancel_echoing (); |
284f4730 | 1221 | |
284f4730 | 1222 | nonundocount = 0; |
284f4730 | 1223 | this_command_key_count = 0; |
6321824f | 1224 | this_single_command_key_start = 0; |
284f4730 | 1225 | |
a612e298 RS |
1226 | /* Make sure this hook runs after commands that get errors and |
1227 | throw to top level. */ | |
a98ea3f9 RS |
1228 | /* Note that the value cell will never directly contain nil |
1229 | if the symbol is a local variable. */ | |
e98a93eb | 1230 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1231 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1232 | |
8f12e41d GM |
1233 | /* If displaying a message, resize the echo area window to fit |
1234 | that message's size exactly. */ | |
1235 | if (!NILP (echo_area_buffer[0])) | |
1236 | resize_echo_area_axactly (); | |
1237 | ||
8a792f3a RS |
1238 | if (!NILP (Vdeferred_action_list)) |
1239 | call0 (Vdeferred_action_function); | |
1240 | ||
e98a93eb | 1241 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1242 | { |
1243 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1244 | && NILP (Vunread_input_method_events) |
1245 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1246 | && NILP (Vexecuting_macro) |
41365083 | 1247 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1248 | safe_run_hooks (Qpost_command_idle_hook); |
1249 | } | |
1250 | ||
51d5a2c9 | 1251 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1252 | current_kboard->Vlast_command = Vthis_command; |
1253 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1254 | |
284f4730 JB |
1255 | while (1) |
1256 | { | |
788f89eb | 1257 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1258 | Fkill_emacs (Qnil); |
1259 | ||
284f4730 JB |
1260 | /* Make sure the current window's buffer is selected. */ |
1261 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1262 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1263 | ||
1264 | /* Display any malloc warning that just came out. Use while because | |
1265 | displaying one warning can cause another. */ | |
1266 | ||
1267 | while (pending_malloc_warning) | |
1268 | display_malloc_warning (); | |
1269 | ||
1270 | no_direct = 0; | |
1271 | ||
86e5706b RS |
1272 | Vdeactivate_mark = Qnil; |
1273 | ||
284f4730 | 1274 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1275 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1276 | |
7ee32cda | 1277 | if (minibuf_level |
985f9f66 | 1278 | && !NILP (echo_area_buffer[0]) |
93127526 | 1279 | && EQ (minibuf_window, echo_area_window)) |
284f4730 | 1280 | { |
f1bed6d8 RS |
1281 | /* Bind inhibit-quit to t so that C-g gets read in |
1282 | rather than quitting back to the minibuffer. */ | |
1283 | int count = specpdl_ptr - specpdl; | |
1284 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1285 | |
db08707d | 1286 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1287 | /* Clear the echo area. */ |
301738ed | 1288 | message2 (0, 0, 0); |
cdb9d665 | 1289 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1290 | |
db08707d RS |
1291 | unbind_to (count, Qnil); |
1292 | ||
e6aa7813 | 1293 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1294 | if (!NILP (Vquit_flag)) |
1295 | { | |
1296 | Vquit_flag = Qnil; | |
24597608 | 1297 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1298 | } |
1299 | } | |
1300 | ||
1301 | #ifdef C_ALLOCA | |
ff4b06d3 | 1302 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1303 | /* Since we can free the most stuff here. */ |
1304 | #endif /* C_ALLOCA */ | |
1305 | ||
8f805655 | 1306 | #if 0 |
8f805655 JB |
1307 | /* Select the frame that the last event came from. Usually, |
1308 | switch-frame events will take care of this, but if some lisp | |
1309 | code swallows a switch-frame event, we'll fix things up here. | |
1310 | Is this a good idea? */ | |
8c18cbfb | 1311 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1312 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1313 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1314 | #endif |
48e416d4 RS |
1315 | /* If it has changed current-menubar from previous value, |
1316 | really recompute the menubar from the value. */ | |
a646e520 RS |
1317 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1318 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1319 | call0 (Qrecompute_lucid_menubar); |
1320 | ||
71918b75 RS |
1321 | before_command_key_count = this_command_key_count; |
1322 | before_command_echo_length = echo_length (); | |
1323 | ||
d5eecefb RS |
1324 | Vthis_command = Qnil; |
1325 | real_this_command = Qnil; | |
d7437ef6 | 1326 | |
8f805655 | 1327 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1328 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1329 | Qnil, 0, 1, 1); |
8f805655 | 1330 | |
6fac1409 | 1331 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1332 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1333 | Fkill_emacs (Qnil); |
6fac1409 RS |
1334 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1335 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1336 | ||
8f805655 JB |
1337 | ++num_input_keys; |
1338 | ||
284f4730 JB |
1339 | /* Now we have read a key sequence of length I, |
1340 | or else I is 0 and we found end of file. */ | |
1341 | ||
1342 | if (i == 0) /* End of file -- happens only in */ | |
1343 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1344 | /* -1 means read_key_sequence got a menu that was rejected. |
1345 | Just loop around and read another command. */ | |
1346 | if (i == -1) | |
1347 | { | |
1348 | cancel_echoing (); | |
1349 | this_command_key_count = 0; | |
6321824f | 1350 | this_single_command_key_start = 0; |
ff4b06d3 | 1351 | goto finalize; |
dcc408a0 | 1352 | } |
284f4730 | 1353 | |
284f4730 JB |
1354 | last_command_char = keybuf[i - 1]; |
1355 | ||
75c0b143 RS |
1356 | /* If the previous command tried to force a specific window-start, |
1357 | forget about that, in case this command moves point far away | |
c422836d KH |
1358 | from that position. But also throw away beg_unchanged and |
1359 | end_unchanged information in that case, so that redisplay will | |
1360 | update the whole window properly. */ | |
1361 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1362 | { | |
9351ebd0 | 1363 | struct buffer *b; |
c422836d | 1364 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1365 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1366 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1367 | } |
75c0b143 | 1368 | |
284f4730 JB |
1369 | cmd = read_key_sequence_cmd; |
1370 | if (!NILP (Vexecuting_macro)) | |
1371 | { | |
1372 | if (!NILP (Vquit_flag)) | |
1373 | { | |
1374 | Vexecuting_macro = Qt; | |
1375 | QUIT; /* Make some noise. */ | |
1376 | /* Will return since macro now empty. */ | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1381 | cases identified below. */ |
86e5706b RS |
1382 | prev_buffer = current_buffer; |
1383 | prev_modiff = MODIFF; | |
8746da95 | 1384 | last_point_position = PT; |
18cd2eeb | 1385 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1386 | |
adf5cb9c KH |
1387 | /* By default, we adjust point to a boundary of a region that |
1388 | has such a property that should be treated intangible | |
1389 | (e.g. composition, display). But, some commands will set | |
1390 | this variable differently. */ | |
1391 | Vdisable_point_adjustment = Qnil; | |
1392 | ||
284f4730 JB |
1393 | /* Execute the command. */ |
1394 | ||
d5eecefb RS |
1395 | Vthis_command = cmd; |
1396 | real_this_command = cmd; | |
a98ea3f9 RS |
1397 | /* Note that the value cell will never directly contain nil |
1398 | if the symbol is a local variable. */ | |
e98a93eb | 1399 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1400 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1401 | |
d5eecefb | 1402 | if (NILP (Vthis_command)) |
284f4730 JB |
1403 | { |
1404 | /* nil means key is undefined. */ | |
1405 | bitch_at_user (); | |
c5fdd383 | 1406 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1407 | update_mode_lines = 1; |
d8bcf58e | 1408 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1409 | } |
1410 | else | |
1411 | { | |
d8bcf58e | 1412 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1413 | { |
75045dcb RS |
1414 | /* In case we jump to directly_done. */ |
1415 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1416 | ||
284f4730 JB |
1417 | /* Recognize some common commands in common situations and |
1418 | do them directly. */ | |
d5eecefb | 1419 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1420 | { |
51ad8a68 | 1421 | struct Lisp_Char_Table *dp |
284f4730 | 1422 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1423 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1424 | SET_PT (PT + 1); |
0f7a8fee | 1425 | if ((dp |
82ba47d7 | 1426 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1427 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1428 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1429 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1430 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1431 | /* To extract the case of continuation on |
1432 | wide-column characters. */ | |
8458ede6 | 1433 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1434 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1435 | >= MODIFF) | |
598ba4c7 RS |
1436 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1437 | >= OVERLAY_MODIFF) | |
284f4730 | 1438 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1439 | == PT - 1) |
284f4730 JB |
1440 | && !windows_or_buffers_changed |
1441 | && EQ (current_buffer->selective_display, Qnil) | |
1442 | && !detect_input_pending () | |
962ae636 | 1443 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1444 | && NILP (Vexecuting_macro)) |
e35b6123 | 1445 | direct_output_forward_char (1); |
284f4730 JB |
1446 | goto directly_done; |
1447 | } | |
d5eecefb | 1448 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1449 | { |
51ad8a68 | 1450 | struct Lisp_Char_Table *dp |
284f4730 | 1451 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1452 | SET_PT (PT - 1); |
aaf35234 | 1453 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1454 | if ((dp |
ca873d73 | 1455 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1456 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1457 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1458 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1459 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1460 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1461 | >= MODIFF) | |
598ba4c7 RS |
1462 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1463 | >= OVERLAY_MODIFF) | |
284f4730 | 1464 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1465 | == PT + 1) |
284f4730 JB |
1466 | && !windows_or_buffers_changed |
1467 | && EQ (current_buffer->selective_display, Qnil) | |
1468 | && !detect_input_pending () | |
962ae636 | 1469 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1470 | && NILP (Vexecuting_macro)) |
e35b6123 | 1471 | direct_output_forward_char (-1); |
284f4730 JB |
1472 | goto directly_done; |
1473 | } | |
d5eecefb | 1474 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1475 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1476 | && INTEGERP (last_command_char)) |
284f4730 | 1477 | { |
89599794 | 1478 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1479 | int value; |
fc9cce4e RS |
1480 | if (NILP (Vexecuting_macro) |
1481 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1482 | { |
1483 | if (!nonundocount || nonundocount >= 20) | |
1484 | { | |
1485 | Fundo_boundary (); | |
1486 | nonundocount = 0; | |
1487 | } | |
1488 | nonundocount++; | |
1489 | } | |
7ee32cda | 1490 | |
fc9cce4e RS |
1491 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1492 | < MODIFF) | |
598ba4c7 RS |
1493 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1494 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1495 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1496 | != PT) | |
4c61f38e | 1497 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1498 | || windows_or_buffers_changed |
1499 | || !EQ (current_buffer->selective_display, Qnil) | |
1500 | || detect_input_pending () | |
962ae636 | 1501 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1502 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1503 | |
fc9cce4e | 1504 | value = internal_self_insert (c, 0); |
7ee32cda | 1505 | |
fc9cce4e RS |
1506 | if (value == 2) |
1507 | nonundocount = 0; | |
1508 | ||
7ee32cda GM |
1509 | /* VALUE == 1 when AFTER-CHANGE functions are |
1510 | installed which is the case most of the time | |
1511 | because FONT-LOCK installs one. */ | |
1512 | if (!lose && !value) | |
e35b6123 | 1513 | direct_output_for_insert (c); |
284f4730 JB |
1514 | goto directly_done; |
1515 | } | |
1516 | } | |
1517 | ||
1518 | /* Here for a command that isn't executed directly */ | |
1519 | ||
7ee32cda GM |
1520 | #ifdef HAVE_X_WINDOWS |
1521 | if (display_busy_cursor_p) | |
d0c48478 | 1522 | start_busy_cursor (); |
7ee32cda GM |
1523 | #endif |
1524 | ||
284f4730 | 1525 | nonundocount = 0; |
d8bcf58e | 1526 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1527 | Fundo_boundary (); |
d5eecefb | 1528 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
d0c48478 GM |
1529 | |
1530 | #ifdef HAVE_X_WINDOWS | |
1531 | if (display_busy_cursor_p) | |
1532 | cancel_busy_cursor (); | |
1533 | #endif | |
284f4730 | 1534 | } |
a764a753 | 1535 | directly_done: ; |
75045dcb | 1536 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1537 | |
84ee6048 RS |
1538 | /* Note that the value cell will never directly contain nil |
1539 | if the symbol is a local variable. */ | |
1540 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1541 | safe_run_hooks (Qpost_command_hook); | |
1542 | ||
8f12e41d GM |
1543 | /* If displaying a message, resize the echo area window to fit |
1544 | that message's size exactly. */ | |
1545 | if (!NILP (echo_area_buffer[0])) | |
1546 | resize_echo_area_axactly (); | |
1547 | ||
84ee6048 RS |
1548 | if (!NILP (Vdeferred_action_list)) |
1549 | safe_run_hooks (Qdeferred_action_function); | |
1550 | ||
1551 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1552 | { | |
1553 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1554 | && NILP (Vunread_input_method_events) |
1555 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1556 | && NILP (Vexecuting_macro) |
1557 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1558 | safe_run_hooks (Qpost_command_idle_hook); | |
1559 | } | |
1560 | ||
284f4730 | 1561 | /* If there is a prefix argument, |
6c7178b9 KH |
1562 | 1) We don't want Vlast_command to be ``universal-argument'' |
1563 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1564 | 2) we want to leave echoing on so that the prefix will be |
1565 | echoed as part of this key sequence, so don't call | |
1566 | cancel_echoing, and | |
1567 | 3) we want to leave this_command_key_count non-zero, so that | |
1568 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1569 | not echo it a second time. |
1570 | ||
1571 | If the command didn't actually create a prefix arg, | |
1572 | but is merely a frame event that is transparent to prefix args, | |
1573 | then the above doesn't apply. */ | |
1574 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1575 | { |
d5eecefb RS |
1576 | current_kboard->Vlast_command = Vthis_command; |
1577 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1578 | cancel_echoing (); |
1579 | this_command_key_count = 0; | |
6321824f | 1580 | this_single_command_key_start = 0; |
284f4730 | 1581 | } |
86e5706b | 1582 | |
88ce066e | 1583 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1584 | { |
1585 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1586 | { | |
1587 | current_buffer->mark_active = Qnil; | |
1588 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1589 | } | |
1590 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1591 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1592 | } | |
ff4b06d3 KH |
1593 | |
1594 | finalize: | |
adf5cb9c KH |
1595 | |
1596 | if (current_buffer == prev_buffer | |
1597 | && last_point_position != PT | |
1598 | && NILP (Vdisable_point_adjustment) | |
1599 | && NILP (Vglobal_disable_point_adjustment)) | |
1600 | adjust_point_for_property (last_point_position); | |
1601 | ||
ff4b06d3 KH |
1602 | /* Install chars successfully executed in kbd macro. */ |
1603 | ||
d8bcf58e KH |
1604 | if (!NILP (current_kboard->defining_kbd_macro) |
1605 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1606 | finalize_kbd_macro_chars (); |
1607 | ||
c5fdd383 | 1608 | #ifdef MULTI_KBOARD |
604ccd1d | 1609 | if (!was_locked) |
1e8bd3da | 1610 | any_kboard_state (); |
ff4b06d3 | 1611 | #endif |
284f4730 JB |
1612 | } |
1613 | } | |
1c9784c9 | 1614 | |
adf5cb9c KH |
1615 | extern Lisp_Object Qcomposition, Qdisplay; |
1616 | ||
1617 | /* Adjust point to a boundary of a region that has such a property | |
1618 | that should be treated intangible. For the moment, we check | |
1619 | `composition' and `display' property. LAST_PT is the last position | |
1620 | of point. */ | |
1621 | ||
1622 | static void | |
1623 | adjust_point_for_property (last_pt) | |
1624 | int last_pt; | |
1625 | { | |
1626 | int start, end; | |
1627 | Lisp_Object val; | |
1628 | int check_composition = 1, check_display = 1; | |
1629 | ||
1630 | while (check_composition || check_display) | |
1631 | { | |
1632 | if (check_composition | |
1633 | && PT > BEGV && PT < ZV | |
1634 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1635 | && COMPOSITION_VALID_P (start, end, val) | |
1636 | && start < PT && end > PT | |
1637 | && (last_pt <= start || last_pt >= end)) | |
1638 | { | |
1639 | if (PT < last_pt) | |
1640 | SET_PT (start); | |
1641 | else | |
1642 | SET_PT (end); | |
1643 | check_display = 1; | |
1644 | } | |
1645 | check_composition = 0; | |
1646 | if (check_display | |
1647 | && PT > BEGV && PT < ZV | |
1648 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
1649 | && start < PT && end > PT | |
1650 | && (last_pt <= start || last_pt >= end)) | |
1651 | { | |
1652 | if (PT < last_pt) | |
1653 | SET_PT (start); | |
1654 | else | |
1655 | SET_PT (end); | |
1656 | check_composition = 1; | |
1657 | } | |
1658 | check_display = 0; | |
1659 | } | |
1660 | } | |
1661 | ||
0bc3db2b RS |
1662 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1663 | ||
1664 | static Lisp_Object | |
1665 | safe_run_hooks_1 (hook) | |
1666 | Lisp_Object hook; | |
1667 | { | |
1668 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1669 | } | |
1670 | ||
1671 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1672 | ||
1673 | static Lisp_Object | |
1674 | safe_run_hooks_error (data) | |
1675 | Lisp_Object data; | |
1676 | { | |
1677 | Fset (Vinhibit_quit, Qnil); | |
1678 | } | |
1679 | ||
1c9784c9 KH |
1680 | /* If we get an error while running the hook, cause the hook variable |
1681 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1682 | to mysteriously evaporate. */ | |
0bc3db2b | 1683 | |
68f297c5 | 1684 | void |
1c9784c9 | 1685 | safe_run_hooks (hook) |
a98ea3f9 | 1686 | Lisp_Object hook; |
1c9784c9 KH |
1687 | { |
1688 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1689 | specbind (Qinhibit_quit, hook); |
1690 | ||
e702932d | 1691 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1692 | |
1693 | unbind_to (count, Qnil); | |
1694 | } | |
8a9f5d3c | 1695 | |
284f4730 | 1696 | \f |
8a9f5d3c GM |
1697 | /* Number of seconds between polling for input. This is a Lisp |
1698 | variable that can be bound. */ | |
1699 | ||
284f4730 JB |
1700 | int polling_period; |
1701 | ||
eb8c3be9 | 1702 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1703 | |
284f4730 JB |
1704 | int poll_suppress_count; |
1705 | ||
8a9f5d3c GM |
1706 | /* Asynchronous timer for polling. */ |
1707 | ||
1708 | struct atimer *poll_timer; | |
1709 | ||
284f4730 | 1710 | |
36922b18 RS |
1711 | #ifdef POLL_FOR_INPUT |
1712 | ||
8a9f5d3c GM |
1713 | /* Poll for input, so what we catch a C-g if it comes in. This |
1714 | function is called from x_make_frame_visible, see comment | |
1715 | there. */ | |
284f4730 | 1716 | |
8a9f5d3c GM |
1717 | void |
1718 | poll_for_input_1 () | |
284f4730 | 1719 | { |
9ac0d9e0 JB |
1720 | if (interrupt_input_blocked == 0 |
1721 | && !waiting_for_input) | |
1722 | read_avail_input (0); | |
284f4730 JB |
1723 | } |
1724 | ||
8a9f5d3c GM |
1725 | /* Timer callback function for poll_timer. TIMER is equal to |
1726 | poll_timer. */ | |
1727 | ||
1728 | void | |
1729 | poll_for_input (timer) | |
1730 | struct atimer *timer; | |
1731 | { | |
1732 | if (poll_suppress_count == 0) | |
1733 | poll_for_input_1 (); | |
1734 | } | |
1735 | ||
1736 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1737 | |
1738 | /* Begin signals to poll for input, if they are appropriate. | |
1739 | This function is called unconditionally from various places. */ | |
1740 | ||
07a59269 | 1741 | void |
284f4730 JB |
1742 | start_polling () |
1743 | { | |
1744 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1745 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1746 | { |
8a9f5d3c GM |
1747 | /* Turn alarm handling on unconditionally. It might have |
1748 | been turned off in process.c. */ | |
1749 | turn_on_atimers (1); | |
1750 | ||
1751 | /* If poll timer doesn't exist, are we need one with | |
1752 | a different interval, start a new one. */ | |
1753 | if (poll_timer == NULL | |
1754 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1755 | { |
8a9f5d3c GM |
1756 | EMACS_TIME interval; |
1757 | ||
1758 | if (poll_timer) | |
1759 | cancel_atimer (poll_timer); | |
1760 | ||
1761 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1762 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1763 | poll_for_input, NULL); | |
284f4730 | 1764 | } |
8a9f5d3c GM |
1765 | |
1766 | /* Let the timer's callback function poll for input | |
1767 | if this becomes zero. */ | |
1768 | --poll_suppress_count; | |
284f4730 JB |
1769 | } |
1770 | #endif | |
1771 | } | |
1772 | ||
1d3195db RS |
1773 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1774 | ||
1775 | int | |
1776 | input_polling_used () | |
1777 | { | |
1778 | #ifdef POLL_FOR_INPUT | |
1779 | return read_socket_hook && !interrupt_input; | |
1780 | #else | |
1781 | return 0; | |
1782 | #endif | |
1783 | } | |
1784 | ||
284f4730 JB |
1785 | /* Turn off polling. */ |
1786 | ||
07a59269 | 1787 | void |
284f4730 JB |
1788 | stop_polling () |
1789 | { | |
1790 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1791 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1792 | ++poll_suppress_count; |
284f4730 JB |
1793 | #endif |
1794 | } | |
fe8aeef3 RS |
1795 | |
1796 | /* Set the value of poll_suppress_count to COUNT | |
1797 | and start or stop polling accordingly. */ | |
1798 | ||
1799 | void | |
1800 | set_poll_suppress_count (count) | |
1801 | int count; | |
1802 | { | |
1803 | #ifdef POLL_FOR_INPUT | |
1804 | if (count == 0 && poll_suppress_count != 0) | |
1805 | { | |
1806 | poll_suppress_count = 1; | |
1807 | start_polling (); | |
1808 | } | |
1809 | else if (count != 0 && poll_suppress_count == 0) | |
1810 | { | |
1811 | stop_polling (); | |
1812 | } | |
1813 | poll_suppress_count = count; | |
1814 | #endif | |
1815 | } | |
f4eef8b4 | 1816 | |
d0a57728 RS |
1817 | /* Bind polling_period to a value at least N. |
1818 | But don't decrease it. */ | |
1819 | ||
07a59269 | 1820 | void |
f4eef8b4 RS |
1821 | bind_polling_period (n) |
1822 | int n; | |
1823 | { | |
1824 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1825 | int new = polling_period; |
1826 | ||
1827 | if (n > new) | |
1828 | new = n; | |
1829 | ||
6fe007f7 | 1830 | stop_other_atimers (poll_timer); |
f4eef8b4 | 1831 | stop_polling (); |
d0a57728 RS |
1832 | specbind (Qpolling_period, make_number (new)); |
1833 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1834 | start_polling (); |
1835 | #endif | |
1836 | } | |
284f4730 | 1837 | \f |
6da3dd3a RS |
1838 | /* Apply the control modifier to CHARACTER. */ |
1839 | ||
faf5e407 JB |
1840 | int |
1841 | make_ctrl_char (c) | |
1842 | int c; | |
1843 | { | |
d205953b JB |
1844 | /* Save the upper bits here. */ |
1845 | int upper = c & ~0177; | |
1846 | ||
1847 | c &= 0177; | |
1848 | ||
1849 | /* Everything in the columns containing the upper-case letters | |
1850 | denotes a control character. */ | |
1851 | if (c >= 0100 && c < 0140) | |
1852 | { | |
1853 | int oc = c; | |
1854 | c &= ~0140; | |
1855 | /* Set the shift modifier for a control char | |
1856 | made from a shifted letter. But only for letters! */ | |
1857 | if (oc >= 'A' && oc <= 'Z') | |
1858 | c |= shift_modifier; | |
1859 | } | |
1860 | ||
1861 | /* The lower-case letters denote control characters too. */ | |
1862 | else if (c >= 'a' && c <= 'z') | |
1863 | c &= ~0140; | |
1864 | ||
1865 | /* Include the bits for control and shift | |
1866 | only if the basic ASCII code can't indicate them. */ | |
1867 | else if (c >= ' ') | |
1868 | c |= ctrl_modifier; | |
1869 | ||
1870 | /* Replace the high bits. */ | |
1871 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1872 | |
1873 | return c; | |
1874 | } | |
1875 | ||
1876 | ||
1877 | \f | |
284f4730 JB |
1878 | /* Input of single characters from keyboard */ |
1879 | ||
1880 | Lisp_Object print_help (); | |
1881 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1882 | static void record_char (); |
284f4730 | 1883 | |
c5fdd383 KH |
1884 | #ifdef MULTI_KBOARD |
1885 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1886 | #endif |
beecf6a1 | 1887 | |
284f4730 JB |
1888 | /* read a character from the keyboard; call the redisplay if needed */ |
1889 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1890 | -1 means do not do redisplay, but do do autosaving. | |
1891 | 1 means do both. */ | |
1892 | ||
7d6de002 RS |
1893 | /* The arguments MAPS and NMAPS are for menu prompting. |
1894 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1895 | ||
1896 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
1897 | the first event of a key sequence (or not reading a key sequence). |
1898 | If PREV_EVENT is t, that is a "magic" value that says | |
1899 | not to run input methods, but in other respects to act as if | |
1900 | not reading a key sequence. | |
7d6de002 | 1901 | |
83d68044 | 1902 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1903 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1904 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1905 | |
1906 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1907 | |
284f4730 | 1908 | Lisp_Object |
7d6de002 | 1909 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1910 | int commandflag; |
7d6de002 RS |
1911 | int nmaps; |
1912 | Lisp_Object *maps; | |
1913 | Lisp_Object prev_event; | |
1914 | int *used_mouse_menu; | |
284f4730 | 1915 | { |
7c3bc944 | 1916 | Lisp_Object c; |
284f4730 | 1917 | int count; |
410d4de9 | 1918 | jmp_buf local_getcjmp; |
284f4730 | 1919 | jmp_buf save_jump; |
a1341f75 | 1920 | int key_already_recorded = 0; |
017c7cb6 | 1921 | Lisp_Object tem, save; |
7ee32cda | 1922 | Lisp_Object previous_echo_area_message; |
e4fe371d | 1923 | Lisp_Object also_record; |
7d18f9ae | 1924 | int reread; |
d5eecefb | 1925 | struct gcpro gcpro1, gcpro2; |
7c3bc944 | 1926 | |
e4fe371d | 1927 | also_record = Qnil; |
284f4730 | 1928 | |
71918b75 RS |
1929 | before_command_key_count = this_command_key_count; |
1930 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1931 | c = Qnil; |
7ee32cda | 1932 | previous_echo_area_message = Qnil; |
71918b75 | 1933 | |
7ee32cda | 1934 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 1935 | |
7f07d5ca RS |
1936 | retry: |
1937 | ||
7d18f9ae RS |
1938 | reread = 0; |
1939 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 1940 | { |
7539e11f | 1941 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 1942 | Vunread_post_input_method_events |
7539e11f | 1943 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 1944 | |
2479e91e RS |
1945 | /* Undo what read_char_x_menu_prompt did when it unread |
1946 | additional keys returned by Fx_popup_menu. */ | |
1947 | if (CONSP (c) | |
7539e11f KR |
1948 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1949 | && NILP (XCDR (c))) | |
1950 | c = XCAR (c); | |
2479e91e | 1951 | |
7d18f9ae RS |
1952 | reread = 1; |
1953 | goto reread_first; | |
284f4730 JB |
1954 | } |
1955 | ||
86e5706b RS |
1956 | if (unread_command_char != -1) |
1957 | { | |
18cd2eeb | 1958 | XSETINT (c, unread_command_char); |
86e5706b RS |
1959 | unread_command_char = -1; |
1960 | ||
7d18f9ae RS |
1961 | reread = 1; |
1962 | goto reread_first; | |
1963 | } | |
1964 | ||
1965 | if (CONSP (Vunread_command_events)) | |
1966 | { | |
7539e11f KR |
1967 | c = XCAR (Vunread_command_events); |
1968 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
1969 | |
1970 | /* Undo what read_char_x_menu_prompt did when it unread | |
1971 | additional keys returned by Fx_popup_menu. */ | |
1972 | if (CONSP (c) | |
7539e11f KR |
1973 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1974 | && NILP (XCDR (c))) | |
1975 | c = XCAR (c); | |
7d18f9ae RS |
1976 | |
1977 | reread = 1; | |
1978 | goto reread_for_input_method; | |
1979 | } | |
1980 | ||
1981 | if (CONSP (Vunread_input_method_events)) | |
1982 | { | |
7539e11f KR |
1983 | c = XCAR (Vunread_input_method_events); |
1984 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
1985 | |
1986 | /* Undo what read_char_x_menu_prompt did when it unread | |
1987 | additional keys returned by Fx_popup_menu. */ | |
1988 | if (CONSP (c) | |
7539e11f KR |
1989 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1990 | && NILP (XCDR (c))) | |
1991 | c = XCAR (c); | |
7d18f9ae RS |
1992 | reread = 1; |
1993 | goto reread_for_input_method; | |
86e5706b RS |
1994 | } |
1995 | ||
71918b75 RS |
1996 | /* If there is no function key translated before |
1997 | reset-this-command-lengths takes effect, forget about it. */ | |
1998 | before_command_restore_flag = 0; | |
1999 | ||
284f4730 JB |
2000 | if (!NILP (Vexecuting_macro)) |
2001 | { | |
fce33686 JB |
2002 | /* We set this to Qmacro; since that's not a frame, nobody will |
2003 | try to switch frames on us, and the selected window will | |
2004 | remain unchanged. | |
2005 | ||
2006 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2007 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2008 | real event came from. Normally, a switch-frame event selects |
2009 | internal_last_event_frame after each command is read, but | |
2010 | events read from a macro should never cause a new frame to be | |
2011 | selected. */ | |
4c52b668 | 2012 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2013 | |
663258f2 JB |
2014 | /* Exit the macro if we are at the end. |
2015 | Also, some things replace the macro with t | |
2016 | to force an early exit. */ | |
2017 | if (EQ (Vexecuting_macro, Qt) | |
2018 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2019 | { |
18cd2eeb | 2020 | XSETINT (c, -1); |
7c3bc944 | 2021 | RETURN_UNGCPRO (c); |
284f4730 | 2022 | } |
df0f2ba1 | 2023 | |
284f4730 | 2024 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2025 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2026 | && (XINT (c) & 0x80)) |
bb9e9bed | 2027 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2028 | |
284f4730 JB |
2029 | executing_macro_index++; |
2030 | ||
2031 | goto from_macro; | |
2032 | } | |
2033 | ||
cd21b839 JB |
2034 | if (!NILP (unread_switch_frame)) |
2035 | { | |
2036 | c = unread_switch_frame; | |
2037 | unread_switch_frame = Qnil; | |
2038 | ||
2039 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2040 | again, so we do not set `reread'. */ |
f4255cd1 | 2041 | goto reread_first; |
cd21b839 JB |
2042 | } |
2043 | ||
adc1d5c8 | 2044 | /* if redisplay was requested */ |
6e4e64a8 RS |
2045 | if (commandflag >= 0) |
2046 | { | |
adc1d5c8 RS |
2047 | /* If there is pending input, process any events which are not |
2048 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2049 | if (input_pending |
2050 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2051 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2052 | |
adc1d5c8 RS |
2053 | /* Redisplay if no pending input. */ |
2054 | while (!input_pending) | |
2055 | { | |
2056 | redisplay (); | |
2057 | ||
2058 | if (!input_pending) | |
2059 | /* Normal case: no input arrived during redisplay. */ | |
2060 | break; | |
2061 | ||
2062 | /* Input arrived and pre-empted redisplay. | |
2063 | Process any events which are not user-visible. */ | |
2064 | swallow_events (0); | |
2065 | /* If that cleared input_pending, try again to redisplay. */ | |
2066 | } | |
6e4e64a8 | 2067 | } |
e9bf89a0 | 2068 | |
410d4de9 | 2069 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
985f9f66 GM |
2070 | if (/* There is a current message. */ |
2071 | !NILP (echo_area_buffer[0]) | |
2072 | /* And we're not echoing from this kboard. */ | |
2073 | && echo_kboard != current_kboard | |
2074 | /* And it's either not ok to echo (ok_to_echo == NULL), or the | |
2075 | last char echoed was from a different kboard. */ | |
2076 | && ok_to_echo_at_next_pause != echo_kboard) | |
7ee32cda | 2077 | cancel_echoing (); |
410d4de9 RS |
2078 | else |
2079 | /* If already echoing, continue. */ | |
2080 | echo_dash (); | |
284f4730 | 2081 | |
410d4de9 RS |
2082 | /* Try reading a character via menu prompting in the minibuf. |
2083 | Try this before the sit-for, because the sit-for | |
2084 | would do the wrong thing if we are supposed to do | |
2085 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2086 | after a mouse event so don't try a minibuf menu. */ | |
2087 | c = Qnil; | |
2088 | if (nmaps > 0 && INTERACTIVE | |
2089 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2090 | /* Don't bring up a menu if we already have another event. */ | |
2091 | && NILP (Vunread_command_events) | |
2092 | && unread_command_char < 0 | |
4ec4ed6a | 2093 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2094 | { |
2095 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2096 | if (! NILP (c)) | |
2097 | { | |
2098 | key_already_recorded = 1; | |
2099 | goto non_reread_1; | |
2100 | } | |
2101 | } | |
284f4730 | 2102 | |
410d4de9 RS |
2103 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2104 | We will do that below, temporarily for short sections of code, | |
2105 | when appropriate. local_getcjmp must be in effect | |
2106 | around any call to sit_for or kbd_buffer_get_event; | |
2107 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2108 | |
410d4de9 | 2109 | if (_setjmp (local_getcjmp)) |
284f4730 | 2110 | { |
18cd2eeb | 2111 | XSETINT (c, quit_char); |
788f89eb | 2112 | internal_last_event_frame = selected_frame; |
4c52b668 | 2113 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2114 | /* If we report the quit char as an event, |
2115 | don't do so more than once. */ | |
2116 | if (!NILP (Vinhibit_quit)) | |
2117 | Vquit_flag = Qnil; | |
284f4730 | 2118 | |
c5fdd383 | 2119 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2120 | { |
788f89eb | 2121 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2122 | if (kb != current_kboard) |
df0f2ba1 | 2123 | { |
c5fdd383 | 2124 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2125 | /* We shouldn't get here if we were in single-kboard mode! */ |
2126 | if (single_kboard) | |
df0f2ba1 KH |
2127 | abort (); |
2128 | while (CONSP (*tailp)) | |
7539e11f | 2129 | tailp = &XCDR (*tailp); |
df0f2ba1 KH |
2130 | if (!NILP (*tailp)) |
2131 | abort (); | |
2132 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2133 | kb->kbd_queue_has_data = 1; |
2134 | current_kboard = kb; | |
ef6661f7 RS |
2135 | /* This is going to exit from read_char |
2136 | so we had better get rid of this frame's stuff. */ | |
2137 | UNGCPRO; | |
c5fdd383 | 2138 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2139 | } |
2140 | } | |
2141 | #endif | |
284f4730 JB |
2142 | goto non_reread; |
2143 | } | |
2144 | ||
d9d4c147 KH |
2145 | timer_start_idle (); |
2146 | ||
284f4730 JB |
2147 | /* If in middle of key sequence and minibuffer not active, |
2148 | start echoing if enough time elapses. */ | |
410d4de9 | 2149 | |
7ee32cda GM |
2150 | if (minibuf_level == 0 |
2151 | && !current_kboard->immediate_echo | |
6c6083a9 | 2152 | && this_command_key_count > 0 |
27203ead | 2153 | && ! noninteractive |
f2647d04 DL |
2154 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2155 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2156 | && (/* No message. */ |
2157 | NILP (echo_area_buffer[0]) | |
2158 | /* Or empty message. */ | |
2159 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2160 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2161 | /* Or already echoing from same kboard. */ | |
2162 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2163 | /* Or not echoing before and echoing allowed. */ | |
2164 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2165 | { |
2166 | Lisp_Object tem0; | |
985f9f66 | 2167 | |
7d6de002 RS |
2168 | /* After a mouse event, start echoing right away. |
2169 | This is because we are probably about to display a menu, | |
2170 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2171 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2172 | echo_now (); |
7d6de002 RS |
2173 | else |
2174 | { | |
39aab679 DL |
2175 | int sec, usec; |
2176 | double duration = extract_float (Vecho_keystrokes); | |
2177 | sec = (int) duration; | |
2178 | usec += (duration - sec) * 1000000; | |
410d4de9 RS |
2179 | save_getcjmp (save_jump); |
2180 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2181 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2182 | restore_getcjmp (save_jump); |
303b5b3f RS |
2183 | if (EQ (tem0, Qt) |
2184 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2185 | echo_now (); |
7d6de002 | 2186 | } |
284f4730 JB |
2187 | } |
2188 | ||
410d4de9 | 2189 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2190 | |
2191 | if (commandflag != 0 | |
2192 | && auto_save_interval > 0 | |
c43b1734 | 2193 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2194 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2195 | { |
284f4730 | 2196 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2197 | /* Hooks can actually change some buffers in auto save. */ |
2198 | redisplay (); | |
284f4730 JB |
2199 | } |
2200 | ||
8150596a | 2201 | /* Try reading using an X menu. |
24597608 RS |
2202 | This is never confused with reading using the minibuf |
2203 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2204 | does not pass on any keymaps. */ | |
410d4de9 | 2205 | |
24597608 | 2206 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2207 | && !NILP (prev_event) |
2208 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2209 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2210 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2211 | /* Don't bring up a menu if we already have another event. */ |
2212 | && NILP (Vunread_command_events) | |
b8556aee | 2213 | && unread_command_char < 0) |
8eb4d8ef RS |
2214 | { |
2215 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2216 | ||
2217 | /* Now that we have read an event, Emacs is not idle. */ | |
2218 | timer_stop_idle (); | |
2219 | ||
7c3bc944 | 2220 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2221 | } |
7d6de002 | 2222 | |
410d4de9 RS |
2223 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2224 | ||
26c1639e | 2225 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2226 | { |
2227 | int delay_level, buffer_size; | |
2228 | ||
410d4de9 RS |
2229 | /* Slow down auto saves logarithmically in size of current buffer, |
2230 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2231 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2232 | last_non_minibuf_size = Z - BEG; | |
2233 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2234 | delay_level = 0; | |
2235 | while (buffer_size > 64) | |
2236 | delay_level++, buffer_size -= buffer_size >> 2; | |
2237 | if (delay_level < 4) delay_level = 4; | |
2238 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2239 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2240 | ||
2241 | /* Auto save if enough time goes by without input. */ | |
2242 | if (commandflag != 0 | |
c43b1734 | 2243 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2244 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2245 | && XINT (Vauto_save_timeout) > 0) |
2246 | { | |
2247 | Lisp_Object tem0; | |
410d4de9 RS |
2248 | |
2249 | save_getcjmp (save_jump); | |
2250 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2251 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2252 | 0, 1, 1, 0); |
410d4de9 RS |
2253 | restore_getcjmp (save_jump); |
2254 | ||
303b5b3f RS |
2255 | if (EQ (tem0, Qt) |
2256 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2257 | { |
7d6de002 | 2258 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2259 | |
2260 | /* If we have auto-saved and there is still no input | |
2261 | available, garbage collect if there has been enough | |
2262 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2263 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2264 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2265 | Fgarbage_collect (); |
410d4de9 | 2266 | |
ef8fd672 | 2267 | redisplay (); |
7d6de002 RS |
2268 | } |
2269 | } | |
2270 | } | |
284f4730 | 2271 | |
303b5b3f RS |
2272 | /* If this has become non-nil here, it has been set by a timer |
2273 | or sentinel or filter. */ | |
2274 | if (CONSP (Vunread_command_events)) | |
2275 | { | |
7539e11f KR |
2276 | c = XCAR (Vunread_command_events); |
2277 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2278 | } |
2279 | ||
410d4de9 RS |
2280 | /* Read something from current KBOARD's side queue, if possible. */ |
2281 | ||
beecf6a1 | 2282 | if (NILP (c)) |
1e12dd87 | 2283 | { |
c5fdd383 | 2284 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2285 | { |
c5fdd383 | 2286 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2287 | abort (); |
7539e11f | 2288 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2289 | current_kboard->kbd_queue |
7539e11f | 2290 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2291 | if (NILP (current_kboard->kbd_queue)) |
2292 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2293 | input_pending = readable_events (0); |
4c52b668 KH |
2294 | if (EVENT_HAS_PARAMETERS (c) |
2295 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2296 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2297 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2298 | } |
1e8bd3da RS |
2299 | } |
2300 | ||
c5fdd383 | 2301 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2302 | /* If current_kboard's side queue is empty check the other kboards. |
2303 | If one of them has data that we have not yet seen here, | |
2304 | switch to it and process the data waiting for it. | |
2305 | ||
2306 | Note: if the events queued up for another kboard | |
2307 | have already been seen here, and therefore are not a complete command, | |
2308 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2309 | That's to avoid an infinite loop switching between kboards here. */ | |
2310 | if (NILP (c) && !single_kboard) | |
2311 | { | |
2312 | KBOARD *kb; | |
2313 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2314 | if (kb->kbd_queue_has_data) | |
2315 | { | |
2316 | current_kboard = kb; | |
ef6661f7 RS |
2317 | /* This is going to exit from read_char |
2318 | so we had better get rid of this frame's stuff. */ | |
2319 | UNGCPRO; | |
1e8bd3da RS |
2320 | longjmp (wrong_kboard_jmpbuf, 1); |
2321 | } | |
2322 | } | |
df0f2ba1 KH |
2323 | #endif |
2324 | ||
410d4de9 RS |
2325 | wrong_kboard: |
2326 | ||
2327 | stop_polling (); | |
2328 | ||
1e8bd3da RS |
2329 | /* Finally, we read from the main queue, |
2330 | and if that gives us something we can't use yet, we put it on the | |
2331 | appropriate side queue and try again. */ | |
410d4de9 | 2332 | |
1e8bd3da RS |
2333 | if (NILP (c)) |
2334 | { | |
2335 | KBOARD *kb; | |
2336 | ||
1e8bd3da | 2337 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2338 | save_getcjmp (save_jump); |
2339 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2340 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2341 | restore_getcjmp (save_jump); |
2342 | ||
c5fdd383 | 2343 | #ifdef MULTI_KBOARD |
410d4de9 | 2344 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2345 | { |
2346 | Lisp_Object *tailp = &kb->kbd_queue; | |
2347 | while (CONSP (*tailp)) | |
7539e11f | 2348 | tailp = &XCDR (*tailp); |
1e8bd3da RS |
2349 | if (!NILP (*tailp)) |
2350 | abort (); | |
2351 | *tailp = Fcons (c, Qnil); | |
2352 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2353 | c = Qnil; |
1e8bd3da RS |
2354 | if (single_kboard) |
2355 | goto wrong_kboard; | |
2356 | current_kboard = kb; | |
ef6661f7 RS |
2357 | /* This is going to exit from read_char |
2358 | so we had better get rid of this frame's stuff. */ | |
2359 | UNGCPRO; | |
1e8bd3da | 2360 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2361 | } |
1e8bd3da | 2362 | #endif |
beecf6a1 | 2363 | } |
1e8bd3da | 2364 | |
284f4730 | 2365 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2366 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2367 | Fkill_emacs (make_number (1)); |
2368 | ||
8c18cbfb | 2369 | if (INTEGERP (c)) |
80645119 JB |
2370 | { |
2371 | /* Add in any extra modifiers, where appropriate. */ | |
2372 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2373 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2374 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2375 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2376 | |
2377 | /* Transfer any other modifier bits directly from | |
2378 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2379 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2380 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2381 | } |
9fa4395d | 2382 | |
284f4730 JB |
2383 | non_reread: |
2384 | ||
2fb9049e | 2385 | timer_stop_idle (); |
d9d4c147 | 2386 | |
284f4730 JB |
2387 | start_polling (); |
2388 | ||
410d4de9 RS |
2389 | if (NILP (c)) |
2390 | { | |
2391 | if (commandflag >= 0 | |
4ec4ed6a | 2392 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2393 | redisplay (); |
2394 | ||
2395 | goto wrong_kboard; | |
2396 | } | |
2397 | ||
2398 | non_reread_1: | |
2399 | ||
dfd11da7 | 2400 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2401 | so don't show them to the user. |
2402 | Also, don't record a key if we already did. */ | |
2403 | if (BUFFERP (c) || key_already_recorded) | |
2404 | RETURN_UNGCPRO (c); | |
a1341f75 | 2405 | |
7f07d5ca RS |
2406 | /* Process special events within read_char |
2407 | and loop around to read another event. */ | |
017c7cb6 RS |
2408 | save = Vquit_flag; |
2409 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2410 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2411 | c, 0, 0), 1); | |
017c7cb6 | 2412 | Vquit_flag = save; |
7f07d5ca RS |
2413 | |
2414 | if (!NILP (tem)) | |
2415 | { | |
ba8dfba8 RS |
2416 | int was_locked = single_kboard; |
2417 | ||
7f07d5ca | 2418 | last_input_char = c; |
158f7532 | 2419 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2420 | |
2421 | /* Resume allowing input from any kboard, if that was true before. */ | |
2422 | if (!was_locked) | |
2423 | any_kboard_state (); | |
2424 | ||
7f07d5ca RS |
2425 | goto retry; |
2426 | } | |
2427 | ||
284f4730 | 2428 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2429 | if (INTEGERP (c)) |
284f4730 JB |
2430 | { |
2431 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2432 | if (XINT (c) == -1) |
7c3bc944 | 2433 | RETURN_UNGCPRO (c); |
284f4730 | 2434 | |
301738ed RS |
2435 | if ((STRINGP (Vkeyboard_translate_table) |
2436 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2437 | || (VECTORP (Vkeyboard_translate_table) | |
2438 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2439 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2440 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2441 | { |
2442 | Lisp_Object d; | |
2443 | d = Faref (Vkeyboard_translate_table, c); | |
2444 | /* nil in keyboard-translate-table means no translation. */ | |
2445 | if (!NILP (d)) | |
2446 | c = d; | |
2447 | } | |
284f4730 JB |
2448 | } |
2449 | ||
e4fe371d RS |
2450 | /* If this event is a mouse click in the menu bar, |
2451 | return just menu-bar for now. Modify the mouse click event | |
2452 | so we won't do this twice, then queue it up. */ | |
2453 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2454 | && CONSP (XCDR (c)) |
e4fe371d | 2455 | && CONSP (EVENT_START (c)) |
7539e11f | 2456 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2457 | { |
e4fe371d | 2458 | Lisp_Object posn; |
284f4730 | 2459 | |
e4fe371d RS |
2460 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2461 | /* Handle menu-bar events: | |
2462 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2463 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2464 | { |
2465 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2466 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2467 | |
e4fe371d RS |
2468 | also_record = c; |
2469 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2470 | c = posn; | |
284f4730 | 2471 | } |
284f4730 JB |
2472 | } |
2473 | ||
7d18f9ae RS |
2474 | /* Store these characters into recent_keys, the dribble file if any, |
2475 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2476 | record_char (c); |
2477 | if (! NILP (also_record)) | |
2478 | record_char (also_record); | |
51172b6d | 2479 | |
d5eecefb RS |
2480 | /* Wipe the echo area. |
2481 | But first, if we are about to use an input method, | |
2482 | save the echo area contents for it to refer to. */ | |
2483 | if (INTEGERP (c) | |
2484 | && ! NILP (Vinput_method_function) | |
2485 | && (unsigned) XINT (c) >= ' ' | |
2486 | && (unsigned) XINT (c) < 127) | |
7ee32cda GM |
2487 | { |
2488 | previous_echo_area_message = Fcurrent_message (); | |
2489 | Vinput_method_previous_message = previous_echo_area_message; | |
2490 | } | |
d5eecefb RS |
2491 | |
2492 | /* Now wipe the echo area. */ | |
985f9f66 | 2493 | if (!NILP (echo_area_buffer[0])) |
d5eecefb | 2494 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2495 | clear_message (1, 0); |
d5eecefb | 2496 | |
7d18f9ae | 2497 | reread_for_input_method: |
284f4730 | 2498 | from_macro: |
7d18f9ae | 2499 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2500 | if (INTEGERP (c) |
2501 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2502 | /* Don't run the input method within a key sequence, |
2503 | after the first event of the key sequence. */ | |
2504 | && NILP (prev_event) | |
d5eecefb RS |
2505 | && (unsigned) XINT (c) >= ' ' |
2506 | && (unsigned) XINT (c) < 127) | |
2507 | { | |
2508 | Lisp_Object keys; | |
6e5742a0 | 2509 | int key_count; |
d5eecefb | 2510 | struct gcpro gcpro1; |
b638f328 | 2511 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2512 | |
6e5742a0 RS |
2513 | /* Save the echo status. */ |
2514 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2515 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2516 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2517 | ||
2518 | if (before_command_restore_flag) | |
2519 | { | |
2520 | this_command_key_count = before_command_key_count_1; | |
2521 | if (this_command_key_count < this_single_command_key_start) | |
2522 | this_single_command_key_start = this_command_key_count; | |
2523 | echo_truncate (before_command_echo_length_1); | |
2524 | before_command_restore_flag = 0; | |
2525 | } | |
2526 | ||
2527 | /* Save the this_command_keys status. */ | |
2528 | key_count = this_command_key_count; | |
2529 | ||
2530 | if (key_count > 0) | |
2531 | keys = Fcopy_sequence (this_command_keys); | |
2532 | else | |
2533 | keys = Qnil; | |
d5eecefb | 2534 | GCPRO1 (keys); |
6e5742a0 RS |
2535 | |
2536 | /* Clear out this_command_keys. */ | |
2537 | this_command_key_count = 0; | |
2538 | ||
2539 | /* Now wipe the echo area. */ | |
985f9f66 | 2540 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2541 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2542 | clear_message (1, 0); |
6e5742a0 RS |
2543 | echo_truncate (0); |
2544 | ||
b638f328 RS |
2545 | /* If we are not reading a key sequence, |
2546 | never use the echo area. */ | |
2547 | if (maps == 0) | |
2548 | { | |
b638f328 RS |
2549 | specbind (Qinput_method_use_echo_area, Qt); |
2550 | } | |
2551 | ||
6e5742a0 | 2552 | /* Call the input method. */ |
d5eecefb | 2553 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2554 | |
2555 | tem = unbind_to (count, tem); | |
2556 | ||
6e5742a0 RS |
2557 | /* Restore the saved echoing state |
2558 | and this_command_keys state. */ | |
2559 | this_command_key_count = key_count; | |
2560 | if (key_count > 0) | |
2561 | this_command_keys = keys; | |
2562 | ||
2563 | cancel_echoing (); | |
2564 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2565 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2566 | if (saved_immediate_echo) | |
2567 | echo_now (); | |
2568 | ||
d5eecefb | 2569 | UNGCPRO; |
6e5742a0 | 2570 | |
d5eecefb RS |
2571 | /* The input method can return no events. */ |
2572 | if (! CONSP (tem)) | |
7d18f9ae | 2573 | { |
d5eecefb | 2574 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2575 | if (! NILP (previous_echo_area_message)) |
2576 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2577 | goto retry; |
7d18f9ae | 2578 | } |
d5eecefb | 2579 | /* It returned one event or more. */ |
7539e11f | 2580 | c = XCAR (tem); |
d5eecefb | 2581 | Vunread_post_input_method_events |
7539e11f | 2582 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2583 | } |
7c3bc944 | 2584 | |
7d18f9ae | 2585 | reread_first: |
284f4730 | 2586 | |
7ee32cda GM |
2587 | /* Display help if not echoing. */ |
2588 | if (CONSP (c) | |
2589 | && EQ (XCAR (c), Qhelp_echo)) | |
2590 | { | |
2591 | Lisp_Object msg = XCDR (XCDR (c)); | |
2592 | ||
2593 | if (!NILP (Vshow_help_function)) | |
2594 | call1 (Vshow_help_function, msg); | |
2595 | else if (!echoing && !MINI_WINDOW_P (XWINDOW (selected_window))) | |
2596 | { | |
2597 | if (STRINGP (msg)) | |
2598 | message3_nolog (msg, XSTRING (msg)->size, STRING_MULTIBYTE (msg)); | |
2599 | else | |
2600 | message (0); | |
2601 | } | |
2602 | ||
2603 | goto retry; | |
2604 | } | |
2605 | ||
7d18f9ae | 2606 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2607 | { |
7d18f9ae RS |
2608 | before_command_key_count = this_command_key_count; |
2609 | before_command_echo_length = echo_length (); | |
2610 | ||
2611 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2612 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2613 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
2614 | && ! (EVENT_HAS_PARAMETERS (c) |
2615 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2616 | { | |
2617 | echo_char (c); | |
2618 | if (! NILP (also_record)) | |
2619 | echo_char (also_record); | |
2620 | /* Once we reread a character, echoing can happen | |
2621 | the next time we pause to read a new one. */ | |
985f9f66 | 2622 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2623 | } |
2624 | ||
2625 | /* Record this character as part of the current key. */ | |
2626 | add_command_key (c); | |
e4fe371d | 2627 | if (! NILP (also_record)) |
7d18f9ae | 2628 | add_command_key (also_record); |
e4fe371d | 2629 | } |
b8556aee | 2630 | |
284f4730 | 2631 | last_input_char = c; |
c43b1734 | 2632 | num_input_events++; |
284f4730 JB |
2633 | |
2634 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2635 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2636 | { |
2637 | Lisp_Object tem0; | |
2638 | count = specpdl_ptr - specpdl; | |
2639 | ||
2640 | record_unwind_protect (Fset_window_configuration, | |
2641 | Fcurrent_window_configuration (Qnil)); | |
2642 | ||
2643 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2644 | if (STRINGP (tem0)) |
284f4730 JB |
2645 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2646 | ||
2647 | cancel_echoing (); | |
3cb81011 KH |
2648 | do |
2649 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2650 | while (BUFFERP (c)); |
ff11dfa1 | 2651 | /* Remove the help from the frame */ |
284f4730 | 2652 | unbind_to (count, Qnil); |
410d4de9 | 2653 | |
284f4730 JB |
2654 | redisplay (); |
2655 | if (EQ (c, make_number (040))) | |
2656 | { | |
2657 | cancel_echoing (); | |
3cb81011 KH |
2658 | do |
2659 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2660 | while (BUFFERP (c)); |
284f4730 JB |
2661 | } |
2662 | } | |
2663 | ||
7c3bc944 | 2664 | RETURN_UNGCPRO (c); |
284f4730 JB |
2665 | } |
2666 | ||
8eb4d8ef RS |
2667 | /* Record a key that came from a mouse menu. |
2668 | Record it for echoing, for this-command-keys, and so on. */ | |
2669 | ||
2670 | static void | |
2671 | record_menu_key (c) | |
2672 | Lisp_Object c; | |
2673 | { | |
2674 | /* Wipe the echo area. */ | |
985f9f66 | 2675 | clear_message (1, 0); |
8eb4d8ef RS |
2676 | |
2677 | record_char (c); | |
2678 | ||
2679 | before_command_key_count = this_command_key_count; | |
2680 | before_command_echo_length = echo_length (); | |
2681 | ||
2682 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
2683 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2684 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
2685 | { |
2686 | echo_char (c); | |
2687 | ||
2688 | /* Once we reread a character, echoing can happen | |
2689 | the next time we pause to read a new one. */ | |
2690 | ok_to_echo_at_next_pause = 0; | |
2691 | } | |
2692 | ||
2693 | /* Record this character as part of the current key. */ | |
2694 | add_command_key (c); | |
2695 | ||
2696 | /* Re-reading in the middle of a command */ | |
2697 | last_input_char = c; | |
c43b1734 | 2698 | num_input_events++; |
8eb4d8ef RS |
2699 | } |
2700 | ||
ecb7cb34 KH |
2701 | /* Return 1 if should recognize C as "the help character". */ |
2702 | ||
2703 | int | |
2704 | help_char_p (c) | |
2705 | Lisp_Object c; | |
2706 | { | |
2707 | Lisp_Object tail; | |
2708 | ||
2709 | if (EQ (c, Vhelp_char)) | |
2710 | return 1; | |
7539e11f KR |
2711 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
2712 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
2713 | return 1; |
2714 | return 0; | |
2715 | } | |
2716 | ||
e4fe371d RS |
2717 | /* Record the input event C in various ways. */ |
2718 | ||
2719 | static void | |
2720 | record_char (c) | |
2721 | Lisp_Object c; | |
2722 | { | |
2723 | total_keys++; | |
2724 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2725 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2726 | recent_keys_index = 0; | |
2727 | ||
2728 | /* Write c to the dribble file. If c is a lispy event, write | |
2729 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2730 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2731 | if (dribble) | |
2732 | { | |
2733 | if (INTEGERP (c)) | |
2734 | { | |
2735 | if (XUINT (c) < 0x100) | |
2736 | putc (XINT (c), dribble); | |
2737 | else | |
6de34814 | 2738 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2739 | } |
2740 | else | |
2741 | { | |
2742 | Lisp_Object dribblee; | |
2743 | ||
2744 | /* If it's a structured event, take the event header. */ | |
2745 | dribblee = EVENT_HEAD (c); | |
2746 | ||
2747 | if (SYMBOLP (dribblee)) | |
2748 | { | |
2749 | putc ('<', dribble); | |
2750 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 2751 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
2752 | dribble); |
2753 | putc ('>', dribble); | |
2754 | } | |
2755 | } | |
2756 | ||
2757 | fflush (dribble); | |
2758 | } | |
2759 | ||
2760 | store_kbd_macro_char (c); | |
2761 | ||
c43b1734 | 2762 | num_nonmacro_input_events++; |
e4fe371d RS |
2763 | } |
2764 | ||
284f4730 JB |
2765 | Lisp_Object |
2766 | print_help (object) | |
2767 | Lisp_Object object; | |
2768 | { | |
622de3e9 | 2769 | struct buffer *old = current_buffer; |
284f4730 | 2770 | Fprinc (object, Qnil); |
622de3e9 KH |
2771 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2772 | call0 (intern ("help-mode")); | |
2773 | set_buffer_internal (old); | |
284f4730 JB |
2774 | return Qnil; |
2775 | } | |
2776 | ||
2777 | /* Copy out or in the info on where C-g should throw to. | |
2778 | This is used when running Lisp code from within get_char, | |
2779 | in case get_char is called recursively. | |
2780 | See read_process_output. */ | |
2781 | ||
dfcf069d | 2782 | static void |
284f4730 JB |
2783 | save_getcjmp (temp) |
2784 | jmp_buf temp; | |
2785 | { | |
2786 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2787 | } | |
2788 | ||
dfcf069d | 2789 | static void |
284f4730 JB |
2790 | restore_getcjmp (temp) |
2791 | jmp_buf temp; | |
2792 | { | |
2793 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2794 | } | |
284f4730 | 2795 | \f |
2eb6bfbe RM |
2796 | #ifdef HAVE_MOUSE |
2797 | ||
284f4730 JB |
2798 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2799 | of this function. */ | |
a9d77f1f | 2800 | |
284f4730 JB |
2801 | static Lisp_Object |
2802 | tracking_off (old_value) | |
2803 | Lisp_Object old_value; | |
2804 | { | |
71edead1 RS |
2805 | do_mouse_tracking = old_value; |
2806 | if (NILP (old_value)) | |
284f4730 | 2807 | { |
284f4730 JB |
2808 | /* Redisplay may have been preempted because there was input |
2809 | available, and it assumes it will be called again after the | |
2810 | input has been processed. If the only input available was | |
2811 | the sort that we have just disabled, then we need to call | |
2812 | redisplay. */ | |
d9d4c147 | 2813 | if (!readable_events (1)) |
284f4730 JB |
2814 | { |
2815 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2816 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2817 | } |
2818 | } | |
2819 | } | |
2820 | ||
2821 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2822 | "Evaluate BODY with mouse movement events enabled.\n\ |
2823 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2824 | you can read with `read-event'.\n\ | |
2825 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2826 | (args) |
2827 | Lisp_Object args; | |
2828 | { | |
2829 | int count = specpdl_ptr - specpdl; | |
2830 | Lisp_Object val; | |
2831 | ||
a9d77f1f | 2832 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2833 | |
f3253854 | 2834 | do_mouse_tracking = Qt; |
df0f2ba1 | 2835 | |
284f4730 JB |
2836 | val = Fprogn (args); |
2837 | return unbind_to (count, val); | |
2838 | } | |
2eb6bfbe | 2839 | |
f3253854 KH |
2840 | /* If mouse has moved on some frame, return one of those frames. |
2841 | Return 0 otherwise. */ | |
2842 | ||
2843 | static FRAME_PTR | |
2844 | some_mouse_moved () | |
2845 | { | |
2846 | Lisp_Object tail, frame; | |
2847 | ||
2848 | FOR_EACH_FRAME (tail, frame) | |
2849 | { | |
2850 | if (XFRAME (frame)->mouse_moved) | |
2851 | return XFRAME (frame); | |
2852 | } | |
2853 | ||
2854 | return 0; | |
2855 | } | |
2856 | ||
2eb6bfbe | 2857 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2858 | \f |
2859 | /* Low level keyboard/mouse input. | |
2860 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2861 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2862 | |
2863 | /* Return true iff there are any events in the queue that read-char | |
2864 | would return. If this returns false, a read-char would block. */ | |
2865 | static int | |
d9d4c147 KH |
2866 | readable_events (do_timers_now) |
2867 | int do_timers_now; | |
a612e298 | 2868 | { |
4ec4ed6a RS |
2869 | if (do_timers_now) |
2870 | timer_check (do_timers_now); | |
2871 | ||
beecf6a1 KH |
2872 | if (kbd_fetch_ptr != kbd_store_ptr) |
2873 | return 1; | |
2874 | #ifdef HAVE_MOUSE | |
f3253854 | 2875 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2876 | return 1; |
2877 | #endif | |
1e8bd3da | 2878 | if (single_kboard) |
4c52b668 | 2879 | { |
c5fdd383 | 2880 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2881 | return 1; |
2882 | } | |
2883 | else | |
2884 | { | |
c5fdd383 KH |
2885 | KBOARD *kb; |
2886 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2887 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2888 | return 1; |
2889 | } | |
beecf6a1 | 2890 | return 0; |
a612e298 RS |
2891 | } |
2892 | ||
2893 | /* Set this for debugging, to have a way to get out */ | |
2894 | int stop_character; | |
284f4730 | 2895 | |
c5fdd383 KH |
2896 | #ifdef MULTI_KBOARD |
2897 | static KBOARD * | |
2898 | event_to_kboard (event) | |
5798cf15 KH |
2899 | struct input_event *event; |
2900 | { | |
2901 | Lisp_Object frame; | |
2902 | frame = event->frame_or_window; | |
2903 | if (CONSP (frame)) | |
7539e11f | 2904 | frame = XCAR (frame); |
5798cf15 KH |
2905 | else if (WINDOWP (frame)) |
2906 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2907 | ||
2908 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2909 | For now, just ignore the problem. |
2910 | Also ignore dead frames here. */ | |
2911 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2912 | return 0; |
2913 | else | |
c5fdd383 | 2914 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2915 | } |
2916 | #endif | |
2917 | ||
284f4730 JB |
2918 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2919 | ||
2920 | void | |
2921 | kbd_buffer_store_event (event) | |
2922 | register struct input_event *event; | |
2923 | { | |
2924 | if (event->kind == no_event) | |
2925 | abort (); | |
2926 | ||
2927 | if (event->kind == ascii_keystroke) | |
2928 | { | |
e9bf89a0 | 2929 | register int c = event->code & 0377; |
284f4730 | 2930 | |
faf5e407 JB |
2931 | if (event->modifiers & ctrl_modifier) |
2932 | c = make_ctrl_char (c); | |
2933 | ||
9fd7d808 RS |
2934 | c |= (event->modifiers |
2935 | & (meta_modifier | alt_modifier | |
2936 | | hyper_modifier | super_modifier)); | |
2937 | ||
86e5706b | 2938 | if (c == quit_char) |
284f4730 | 2939 | { |
3e51c7b7 | 2940 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2941 | #ifdef MULTI_KBOARD |
2942 | KBOARD *kb; | |
5798cf15 KH |
2943 | struct input_event *sp; |
2944 | ||
1e8bd3da | 2945 | if (single_kboard |
c5fdd383 KH |
2946 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2947 | kb != current_kboard)) | |
5798cf15 | 2948 | { |
c5fdd383 | 2949 | kb->kbd_queue |
5798cf15 KH |
2950 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2951 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2952 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2953 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2954 | { | |
2955 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2956 | sp = kbd_buffer; | |
2957 | ||
c5fdd383 | 2958 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2959 | { |
2960 | sp->kind = no_event; | |
2961 | sp->frame_or_window = Qnil; | |
2962 | } | |
2963 | } | |
2964 | return; | |
2965 | } | |
2966 | #endif | |
3e51c7b7 | 2967 | |
284f4730 | 2968 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2969 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2970 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2971 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2972 | { |
9b8eb840 | 2973 | Lisp_Object focus; |
4bb994d1 | 2974 | |
9b8eb840 | 2975 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2976 | if (NILP (focus)) |
beecf6a1 | 2977 | focus = event->frame_or_window; |
4c52b668 KH |
2978 | internal_last_event_frame = focus; |
2979 | Vlast_event_frame = focus; | |
4bb994d1 | 2980 | } |
3e51c7b7 | 2981 | |
ffd56f97 | 2982 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2983 | interrupt_signal (); |
2984 | return; | |
2985 | } | |
2986 | ||
2987 | if (c && c == stop_character) | |
2988 | { | |
2989 | sys_suspend (); | |
2990 | return; | |
2991 | } | |
284f4730 | 2992 | } |
3fe8e9a2 RS |
2993 | /* Don't insert two buffer_switch_event's in a row. |
2994 | Just ignore the second one. */ | |
2995 | else if (event->kind == buffer_switch_event | |
2996 | && kbd_fetch_ptr != kbd_store_ptr | |
2997 | && kbd_store_ptr->kind == buffer_switch_event) | |
2998 | return; | |
284f4730 | 2999 | |
beecf6a1 KH |
3000 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3001 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3002 | |
3003 | /* Don't let the very last slot in the buffer become full, | |
3004 | since that would make the two pointers equal, | |
3005 | and that is indistinguishable from an empty buffer. | |
3006 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3007 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3008 | { |
7ee32cda | 3009 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3010 | sp->kind = event->kind; |
27203ead RS |
3011 | if (event->kind == selection_request_event) |
3012 | { | |
3013 | /* We must not use the ordinary copying code for this case, | |
3014 | since `part' is an enum and copying it might not copy enough | |
3015 | in this case. */ | |
612b78ef | 3016 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3017 | } |
3018 | else | |
3019 | { | |
612b78ef KH |
3020 | sp->code = event->code; |
3021 | sp->part = event->part; | |
3022 | sp->frame_or_window = event->frame_or_window; | |
3023 | sp->modifiers = event->modifiers; | |
3024 | sp->x = event->x; | |
3025 | sp->y = event->y; | |
3026 | sp->timestamp = event->timestamp; | |
27203ead | 3027 | } |
beecf6a1 KH |
3028 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
3029 | - kbd_buffer] | |
7b4aedb9 | 3030 | = event->frame_or_window); |
284f4730 | 3031 | |
beecf6a1 | 3032 | kbd_store_ptr++; |
284f4730 JB |
3033 | } |
3034 | } | |
a612e298 | 3035 | \f |
07de30b9 GV |
3036 | /* Discard any mouse events in the event buffer by setting them to |
3037 | no_event. */ | |
3038 | void | |
3039 | discard_mouse_events () | |
3040 | { | |
3041 | struct input_event *sp; | |
3042 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3043 | { | |
3044 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3045 | sp = kbd_buffer; | |
3046 | ||
3047 | if (sp->kind == mouse_click | |
3048 | #ifdef WINDOWSNT | |
3049 | || sp->kind == w32_scroll_bar_click | |
3050 | #endif | |
3051 | || sp->kind == scroll_bar_click) | |
3052 | { | |
3053 | sp->kind = no_event; | |
3054 | } | |
3055 | } | |
3056 | } | |
3057 | \f | |
a612e298 RS |
3058 | /* Read one event from the event buffer, waiting if necessary. |
3059 | The value is a Lisp object representing the event. | |
3060 | The value is nil for an event that should be ignored, | |
3061 | or that was handled here. | |
3062 | We always read and discard one event. */ | |
284f4730 JB |
3063 | |
3064 | static Lisp_Object | |
83d68044 | 3065 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3066 | KBOARD **kbp; |
83d68044 | 3067 | int *used_mouse_menu; |
284f4730 JB |
3068 | { |
3069 | register int c; | |
3070 | Lisp_Object obj; | |
3071 | ||
3072 | if (noninteractive) | |
3073 | { | |
3074 | c = getchar (); | |
18cd2eeb | 3075 | XSETINT (obj, c); |
f5b56972 | 3076 | *kbp = current_kboard; |
284f4730 JB |
3077 | return obj; |
3078 | } | |
3079 | ||
3080 | /* Wait until there is input available. */ | |
3081 | for (;;) | |
3082 | { | |
beecf6a1 KH |
3083 | if (kbd_fetch_ptr != kbd_store_ptr) |
3084 | break; | |
3085 | #ifdef HAVE_MOUSE | |
f3253854 | 3086 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3087 | break; |
beecf6a1 | 3088 | #endif |
284f4730 JB |
3089 | |
3090 | /* If the quit flag is set, then read_char will return | |
3091 | quit_char, so that counts as "available input." */ | |
3092 | if (!NILP (Vquit_flag)) | |
3093 | quit_throw_to_read_char (); | |
3094 | ||
3095 | /* One way or another, wait until input is available; then, if | |
3096 | interrupt handlers have not read it, read it now. */ | |
3097 | ||
3098 | #ifdef OLDVMS | |
3099 | wait_for_kbd_input (); | |
3100 | #else | |
3101 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3102 | #ifdef SIGIO | |
3103 | gobble_input (0); | |
3104 | #endif /* SIGIO */ | |
beecf6a1 KH |
3105 | if (kbd_fetch_ptr != kbd_store_ptr) |
3106 | break; | |
3107 | #ifdef HAVE_MOUSE | |
f3253854 | 3108 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3109 | break; |
3110 | #endif | |
3111 | { | |
3112 | Lisp_Object minus_one; | |
f76475ad | 3113 | |
beecf6a1 | 3114 | XSETINT (minus_one, -1); |
d9d4c147 | 3115 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3116 | |
beecf6a1 KH |
3117 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3118 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3119 | read_avail_input (1); | |
3120 | } | |
284f4730 JB |
3121 | #endif /* not VMS */ |
3122 | } | |
3123 | ||
303b5b3f RS |
3124 | if (CONSP (Vunread_command_events)) |
3125 | { | |
3126 | Lisp_Object first; | |
7539e11f KR |
3127 | first = XCAR (Vunread_command_events); |
3128 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3129 | *kbp = current_kboard; |
3130 | return first; | |
3131 | } | |
3132 | ||
284f4730 JB |
3133 | /* At this point, we know that there is a readable event available |
3134 | somewhere. If the event queue is empty, then there must be a | |
3135 | mouse movement enabled and available. */ | |
beecf6a1 | 3136 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3137 | { |
cd21b839 | 3138 | struct input_event *event; |
3e51c7b7 | 3139 | |
beecf6a1 KH |
3140 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3141 | ? kbd_fetch_ptr | |
3142 | : kbd_buffer); | |
3e51c7b7 | 3143 | |
cd21b839 | 3144 | last_event_timestamp = event->timestamp; |
cd21b839 | 3145 | |
c5fdd383 KH |
3146 | #ifdef MULTI_KBOARD |
3147 | *kbp = event_to_kboard (event); | |
3148 | if (*kbp == 0) | |
3149 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3150 | #else |
c5fdd383 | 3151 | *kbp = &the_only_kboard; |
5798cf15 | 3152 | #endif |
beecf6a1 | 3153 | |
4bb994d1 JB |
3154 | obj = Qnil; |
3155 | ||
48e416d4 | 3156 | /* These two kinds of events get special handling |
a612e298 RS |
3157 | and don't actually appear to the command loop. |
3158 | We return nil for them. */ | |
48e416d4 RS |
3159 | if (event->kind == selection_request_event) |
3160 | { | |
598a9fa7 | 3161 | #ifdef HAVE_X11 |
1e8bd3da RS |
3162 | struct input_event copy; |
3163 | ||
4581e928 RS |
3164 | /* Remove it from the buffer before processing it, |
3165 | since otherwise swallow_events will see it | |
3166 | and process it again. */ | |
1e8bd3da | 3167 | copy = *event; |
beecf6a1 | 3168 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3169 | input_pending = readable_events (0); |
4581e928 | 3170 | x_handle_selection_request (©); |
598a9fa7 JB |
3171 | #else |
3172 | /* We're getting selection request events, but we don't have | |
3173 | a window system. */ | |
3174 | abort (); | |
3175 | #endif | |
48e416d4 RS |
3176 | } |
3177 | ||
1e12dd87 | 3178 | else if (event->kind == selection_clear_event) |
48e416d4 | 3179 | { |
598a9fa7 | 3180 | #ifdef HAVE_X11 |
e0301c07 RS |
3181 | struct input_event copy; |
3182 | ||
3183 | /* Remove it from the buffer before processing it. */ | |
3184 | copy = *event; | |
beecf6a1 | 3185 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3186 | input_pending = readable_events (0); |
90c2bb0c | 3187 | x_handle_selection_clear (©); |
598a9fa7 JB |
3188 | #else |
3189 | /* We're getting selection request events, but we don't have | |
3190 | a window system. */ | |
3191 | abort (); | |
3192 | #endif | |
48e416d4 | 3193 | } |
e98a93eb | 3194 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
3195 | else if (event->kind == delete_window_event) |
3196 | { | |
bbdc2092 RS |
3197 | /* Make an event (delete-frame (FRAME)). */ |
3198 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3199 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3200 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3201 | } |
3202 | else if (event->kind == iconify_event) | |
3203 | { | |
3204 | /* Make an event (iconify-frame (FRAME)). */ | |
3205 | obj = Fcons (event->frame_or_window, Qnil); | |
3206 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3207 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3208 | } |
3209 | else if (event->kind == deiconify_event) | |
3210 | { | |
3211 | /* Make an event (make-frame-visible (FRAME)). */ | |
3212 | obj = Fcons (event->frame_or_window, Qnil); | |
3213 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3214 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3215 | } |
3216 | #endif | |
a8015ab5 KH |
3217 | else if (event->kind == buffer_switch_event) |
3218 | { | |
3219 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3220 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3221 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3222 | } |
07de30b9 | 3223 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
3224 | else if (event->kind == menu_bar_activate_event) |
3225 | { | |
3226 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3227 | input_pending = readable_events (0); |
e649d076 RS |
3228 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3229 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3230 | } |
1161d367 GV |
3231 | #endif |
3232 | #ifdef WINDOWSNT | |
3233 | else if (event->kind == language_change_event) | |
3234 | { | |
3235 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3236 | obj = Fcons (event->modifiers, Qnil); | |
3237 | obj = Fcons (event->code, Qnil); | |
3238 | obj = Fcons (event->frame_or_window, obj); | |
3239 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3240 | kbd_fetch_ptr = event + 1; | |
3241 | } | |
099787c1 | 3242 | #endif |
a612e298 | 3243 | /* Just discard these, by returning nil. |
c5fdd383 | 3244 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3245 | when we need to randomly delete events from the queue. |
3246 | (They shouldn't otherwise be found in the buffer, | |
3247 | but on some machines it appears they do show up | |
c5fdd383 | 3248 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3249 | /* On Windows NT/9X, no_event is used to delete extraneous |
3250 | mouse events during a popup-menu call. */ | |
a612e298 | 3251 | else if (event->kind == no_event) |
beecf6a1 | 3252 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3253 | else if (event->kind == HELP_EVENT) |
3254 | { | |
3255 | /* The car of event->frame_or_window is a frame, | |
3256 | the cdr is the help to display. */ | |
3257 | obj = Fcons (Qhelp_echo, event->frame_or_window); | |
3258 | kbd_fetch_ptr = event + 1; | |
3259 | } | |
4bb994d1 JB |
3260 | /* If this event is on a different frame, return a switch-frame this |
3261 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
3262 | else |
3263 | { | |
9b8eb840 | 3264 | Lisp_Object frame; |
1e12dd87 | 3265 | Lisp_Object focus; |
7b4aedb9 | 3266 | |
9b8eb840 | 3267 | frame = event->frame_or_window; |
2470a66f | 3268 | if (CONSP (frame)) |
7539e11f | 3269 | frame = XCAR (frame); |
2470a66f | 3270 | else if (WINDOWP (frame)) |
1e12dd87 | 3271 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3272 | |
1e12dd87 RS |
3273 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3274 | if (! NILP (focus)) | |
3275 | frame = focus; | |
07d2b8de | 3276 | |
4c52b668 | 3277 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3278 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3279 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3280 | internal_last_event_frame = frame; |
4bb994d1 | 3281 | |
1e12dd87 RS |
3282 | /* If we didn't decide to make a switch-frame event, go ahead |
3283 | and build a real event from the queue entry. */ | |
cd21b839 | 3284 | |
1e12dd87 RS |
3285 | if (NILP (obj)) |
3286 | { | |
3287 | obj = make_lispy_event (event); | |
e98a93eb | 3288 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3289 | /* If this was a menu selection, then set the flag to inhibit |
3290 | writing to last_nonmenu_event. Don't do this if the event | |
3291 | we're returning is (menu-bar), though; that indicates the | |
3292 | beginning of the menu sequence, and we might as well leave | |
3293 | that as the `event with parameters' for this selection. */ | |
7ee32cda | 3294 | if ((event->kind == menu_bar_event |
9ea173e8 | 3295 | || event->kind == TOOL_BAR_EVENT) |
7539e11f KR |
3296 | && !(CONSP (obj) && EQ (XCAR (obj), Qmenu_bar)) |
3297 | && !(CONSP (obj) && EQ (XCAR (obj), Qtool_bar)) | |
83d68044 KH |
3298 | && used_mouse_menu) |
3299 | *used_mouse_menu = 1; | |
3300 | #endif | |
1e12dd87 RS |
3301 | |
3302 | /* Wipe out this event, to catch bugs. */ | |
3303 | event->kind = no_event; | |
beecf6a1 | 3304 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 3305 | |
beecf6a1 | 3306 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3307 | } |
4bb994d1 | 3308 | } |
284f4730 | 3309 | } |
2eb6bfbe | 3310 | #ifdef HAVE_MOUSE |
a612e298 | 3311 | /* Try generating a mouse motion event. */ |
f3253854 | 3312 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3313 | { |
f3253854 | 3314 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3315 | Lisp_Object bar_window; |
3c370943 | 3316 | enum scroll_bar_part part; |
e5d77022 JB |
3317 | Lisp_Object x, y; |
3318 | unsigned long time; | |
284f4730 | 3319 | |
c5fdd383 | 3320 | *kbp = current_kboard; |
e177ac3a RS |
3321 | /* Note that this uses F to determine which display to look at. |
3322 | If there is no valid info, it does not store anything | |
3323 | so x remains nil. */ | |
3324 | x = Qnil; | |
dd26ab75 | 3325 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3326 | |
3327 | obj = Qnil; | |
284f4730 | 3328 | |
4bb994d1 JB |
3329 | /* Decide if we should generate a switch-frame event. Don't |
3330 | generate switch-frame events for motion outside of all Emacs | |
3331 | frames. */ | |
e177ac3a | 3332 | if (!NILP (x) && f) |
cd21b839 | 3333 | { |
9b8eb840 | 3334 | Lisp_Object frame; |
4bb994d1 | 3335 | |
9b8eb840 | 3336 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3337 | if (NILP (frame)) |
18cd2eeb | 3338 | XSETFRAME (frame, f); |
4bb994d1 | 3339 | |
4c52b668 | 3340 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3341 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3342 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3343 | internal_last_event_frame = frame; |
cd21b839 | 3344 | } |
4bb994d1 | 3345 | |
df0f2ba1 | 3346 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3347 | return a mouse-motion event. */ |
e177ac3a | 3348 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3349 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3350 | } |
2eb6bfbe | 3351 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3352 | else |
3353 | /* We were promised by the above while loop that there was | |
3354 | something for us to read! */ | |
3355 | abort (); | |
3356 | ||
d9d4c147 | 3357 | input_pending = readable_events (0); |
284f4730 | 3358 | |
4c52b668 | 3359 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3360 | |
284f4730 JB |
3361 | return (obj); |
3362 | } | |
a612e298 RS |
3363 | \f |
3364 | /* Process any events that are not user-visible, | |
3365 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3366 | |
3367 | void | |
d9d4c147 KH |
3368 | swallow_events (do_display) |
3369 | int do_display; | |
3a3b9632 | 3370 | { |
87dd9b9b RS |
3371 | int old_timers_run; |
3372 | ||
beecf6a1 | 3373 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3374 | { |
3375 | struct input_event *event; | |
3376 | ||
beecf6a1 KH |
3377 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3378 | ? kbd_fetch_ptr | |
3379 | : kbd_buffer); | |
3a3b9632 RS |
3380 | |
3381 | last_event_timestamp = event->timestamp; | |
3382 | ||
3383 | /* These two kinds of events get special handling | |
3384 | and don't actually appear to the command loop. */ | |
3385 | if (event->kind == selection_request_event) | |
3386 | { | |
3387 | #ifdef HAVE_X11 | |
4581e928 | 3388 | struct input_event copy; |
e0301c07 RS |
3389 | |
3390 | /* Remove it from the buffer before processing it, | |
3391 | since otherwise swallow_events called recursively could see it | |
3392 | and process it again. */ | |
4581e928 | 3393 | copy = *event; |
beecf6a1 | 3394 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3395 | input_pending = readable_events (0); |
4581e928 | 3396 | x_handle_selection_request (©); |
3a3b9632 RS |
3397 | #else |
3398 | /* We're getting selection request events, but we don't have | |
3399 | a window system. */ | |
3400 | abort (); | |
3401 | #endif | |
3402 | } | |
3403 | ||
3404 | else if (event->kind == selection_clear_event) | |
3405 | { | |
3406 | #ifdef HAVE_X11 | |
e0301c07 RS |
3407 | struct input_event copy; |
3408 | ||
3409 | /* Remove it from the buffer before processing it, */ | |
3410 | copy = *event; | |
3411 | ||
beecf6a1 | 3412 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3413 | input_pending = readable_events (0); |
90c2bb0c | 3414 | x_handle_selection_clear (©); |
3a3b9632 RS |
3415 | #else |
3416 | /* We're getting selection request events, but we don't have | |
3417 | a window system. */ | |
3418 | abort (); | |
3419 | #endif | |
3420 | } | |
3421 | else | |
3422 | break; | |
3423 | } | |
3424 | ||
87dd9b9b | 3425 | old_timers_run = timers_run; |
d9d4c147 | 3426 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3427 | |
3428 | if (timers_run != old_timers_run && do_display) | |
3429 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3430 | } |
a612e298 | 3431 | \f |
d9d4c147 KH |
3432 | static EMACS_TIME timer_idleness_start_time; |
3433 | ||
3434 | /* Record the start of when Emacs is idle, | |
3435 | for the sake of running idle-time timers. */ | |
3436 | ||
07a59269 | 3437 | void |
d9d4c147 KH |
3438 | timer_start_idle () |
3439 | { | |
3440 | Lisp_Object timers; | |
3441 | ||
3442 | /* If we are already in the idle state, do nothing. */ | |
3443 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3444 | return; | |
3445 | ||
3446 | EMACS_GET_TIME (timer_idleness_start_time); | |
3447 | ||
3448 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3449 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3450 | { |
3451 | Lisp_Object timer; | |
3452 | ||
7539e11f | 3453 | timer = XCAR (timers); |
d9d4c147 KH |
3454 | |
3455 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3456 | continue; | |
3457 | XVECTOR (timer)->contents[0] = Qnil; | |
3458 | } | |
3459 | } | |
3460 | ||
3461 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3462 | ||
07a59269 | 3463 | void |
d9d4c147 KH |
3464 | timer_stop_idle () |
3465 | { | |
3466 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3467 | } | |
3468 | ||
e044e87c RS |
3469 | /* This is only for debugging. */ |
3470 | struct input_event last_timer_event; | |
3471 | ||
c04cbc3b RS |
3472 | /* Check whether a timer has fired. To prevent larger problems we simply |
3473 | disregard elements that are not proper timers. Do not make a circular | |
3474 | timer list for the time being. | |
3475 | ||
3476 | Returns the number of seconds to wait until the next timer fires. If a | |
3477 | timer is triggering now, return zero seconds. | |
3478 | If no timer is active, return -1 seconds. | |
3479 | ||
4ec4ed6a RS |
3480 | If a timer is ripe, we run it, with quitting turned off. |
3481 | ||
3482 | DO_IT_NOW is now ignored. It used to mean that we should | |
3483 | run the timer directly instead of queueing a timer-event. | |
3484 | Now we always run timers directly. */ | |
c04cbc3b RS |
3485 | |
3486 | EMACS_TIME | |
3487 | timer_check (do_it_now) | |
3488 | int do_it_now; | |
3489 | { | |
3490 | EMACS_TIME nexttime; | |
9291c072 RS |
3491 | EMACS_TIME now, idleness_now; |
3492 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3493 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3494 | |
c04cbc3b RS |
3495 | EMACS_SET_SECS (nexttime, -1); |
3496 | EMACS_SET_USECS (nexttime, -1); | |
3497 | ||
9291c072 | 3498 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3499 | timers = Vtimer_list; |
9291c072 RS |
3500 | /* Consider the idle timers only if Emacs is idle. */ |
3501 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3502 | idle_timers = Vtimer_idle_list; | |
3503 | else | |
3504 | idle_timers = Qnil; | |
3505 | chosen_timer = Qnil; | |
3506 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3507 | |
9291c072 | 3508 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3509 | { |
9291c072 RS |
3510 | EMACS_GET_TIME (now); |
3511 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3512 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3513 | } | |
c04cbc3b | 3514 | |
9291c072 RS |
3515 | while (CONSP (timers) || CONSP (idle_timers)) |
3516 | { | |
9291c072 RS |
3517 | Lisp_Object *vector; |
3518 | Lisp_Object timer, idle_timer; | |
3519 | EMACS_TIME timer_time, idle_timer_time; | |
3520 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3521 | ||
3522 | /* Skip past invalid timers and timers already handled. */ | |
3523 | if (!NILP (timers)) | |
c04cbc3b | 3524 | { |
7539e11f | 3525 | timer = XCAR (timers); |
9291c072 RS |
3526 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3527 | { | |
7539e11f | 3528 | timers = XCDR (timers); |
9291c072 RS |
3529 | continue; |
3530 | } | |
3531 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3532 | |
9291c072 RS |
3533 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3534 | || !INTEGERP (vector[3]) | |
3535 | || ! NILP (vector[0])) | |
3536 | { | |
7539e11f | 3537 | timers = XCDR (timers); |
9291c072 RS |
3538 | continue; |
3539 | } | |
3540 | } | |
3541 | if (!NILP (idle_timers)) | |
3542 | { | |
7539e11f | 3543 | timer = XCAR (idle_timers); |
d9d4c147 | 3544 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 3545 | { |
7539e11f | 3546 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3547 | continue; |
3548 | } | |
d9d4c147 KH |
3549 | vector = XVECTOR (timer)->contents; |
3550 | ||
3551 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3552 | || !INTEGERP (vector[3]) |
3553 | || ! NILP (vector[0])) | |
3554 | { | |
7539e11f | 3555 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3556 | continue; |
3557 | } | |
3558 | } | |
d9d4c147 | 3559 | |
9291c072 RS |
3560 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3561 | based on the next ordinary timer. | |
3562 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3563 | this timer becomes ripe (negative if it's already ripe). */ | |
3564 | if (!NILP (timers)) | |
3565 | { | |
7539e11f | 3566 | timer = XCAR (timers); |
9291c072 | 3567 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
3568 | EMACS_SET_SECS (timer_time, |
3569 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3570 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3571 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3572 | } | |
ba8dfba8 | 3573 | |
9291c072 RS |
3574 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3575 | based on the next idle timer. */ | |
3576 | if (!NILP (idle_timers)) | |
3577 | { | |
7539e11f | 3578 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
3579 | vector = XVECTOR (idle_timer)->contents; |
3580 | EMACS_SET_SECS (idle_timer_time, | |
3581 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3582 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3583 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3584 | } | |
ba8dfba8 | 3585 | |
9291c072 RS |
3586 | /* Decide which timer is the next timer, |
3587 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3588 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3589 | |
9291c072 RS |
3590 | if (! NILP (timers) && ! NILP (idle_timers)) |
3591 | { | |
3592 | EMACS_TIME temp; | |
3593 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3594 | if (EMACS_TIME_NEG_P (temp)) | |
3595 | { | |
3596 | chosen_timer = timer; | |
7539e11f | 3597 | timers = XCDR (timers); |
9291c072 | 3598 | difference = timer_difference; |
c04cbc3b | 3599 | } |
d9d4c147 | 3600 | else |
d9d4c147 | 3601 | { |
9291c072 | 3602 | chosen_timer = idle_timer; |
7539e11f | 3603 | idle_timers = XCDR (idle_timers); |
9291c072 | 3604 | difference = idle_timer_difference; |
d9d4c147 | 3605 | } |
7ea13e12 | 3606 | } |
9291c072 RS |
3607 | else if (! NILP (timers)) |
3608 | { | |
3609 | chosen_timer = timer; | |
7539e11f | 3610 | timers = XCDR (timers); |
9291c072 RS |
3611 | difference = timer_difference; |
3612 | } | |
3613 | else | |
3614 | { | |
3615 | chosen_timer = idle_timer; | |
7539e11f | 3616 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3617 | difference = idle_timer_difference; |
3618 | } | |
3619 | vector = XVECTOR (chosen_timer)->contents; | |
3620 | ||
3621 | /* If timer is rupe, run it if it hasn't been run. */ | |
3622 | if (EMACS_TIME_NEG_P (difference) | |
3623 | || (EMACS_SECS (difference) == 0 | |
3624 | && EMACS_USECS (difference) == 0)) | |
3625 | { | |
3626 | if (NILP (vector[0])) | |
3627 | { | |
d925fb39 RS |
3628 | int was_locked = single_kboard; |
3629 | int count = specpdl_ptr - specpdl; | |
3630 | ||
9291c072 RS |
3631 | /* Mark the timer as triggered to prevent problems if the lisp |
3632 | code fails to reschedule it right. */ | |
3633 | vector[0] = Qt; | |
3634 | ||
d925fb39 | 3635 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3636 | |
d925fb39 RS |
3637 | call1 (Qtimer_event_handler, chosen_timer); |
3638 | timers_run++; | |
9291c072 | 3639 | |
d925fb39 | 3640 | unbind_to (count, Qnil); |
4ec4ed6a | 3641 | |
d925fb39 RS |
3642 | /* Resume allowing input from any kboard, if that was true before. */ |
3643 | if (!was_locked) | |
3644 | any_kboard_state (); | |
9291c072 | 3645 | |
d925fb39 RS |
3646 | /* Since we have handled the event, |
3647 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3648 | } |
3649 | } | |
3650 | else | |
3651 | /* When we encounter a timer that is still waiting, | |
3652 | return the amount of time to wait before it is ripe. */ | |
3653 | { | |
3654 | UNGCPRO; | |
9291c072 RS |
3655 | return difference; |
3656 | } | |
c04cbc3b | 3657 | } |
9291c072 | 3658 | |
7ea13e12 RS |
3659 | /* No timers are pending in the future. */ |
3660 | /* Return 0 if we generated an event, and -1 if not. */ | |
3661 | UNGCPRO; | |
c04cbc3b RS |
3662 | return nexttime; |
3663 | } | |
3664 | \f | |
284f4730 | 3665 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3666 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3667 | static Lisp_Object func_key_syms; |
3668 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3669 | #ifdef WINDOWSNT |
3670 | static Lisp_Object mouse_wheel_syms; | |
3671 | #endif | |
a24dc617 | 3672 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 3673 | |
e9bf89a0 RS |
3674 | /* This is a list of keysym codes for special "accent" characters. |
3675 | It parallels lispy_accent_keys. */ | |
3676 | ||
3677 | static int lispy_accent_codes[] = | |
3678 | { | |
79a7046c | 3679 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3680 | XK_dead_circumflex, |
79a7046c RS |
3681 | #else |
3682 | 0, | |
3683 | #endif | |
3684 | #ifdef XK_dead_grave | |
e9bf89a0 | 3685 | XK_dead_grave, |
79a7046c RS |
3686 | #else |
3687 | 0, | |
3688 | #endif | |
3689 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3690 | XK_dead_tilde, |
79a7046c RS |
3691 | #else |
3692 | 0, | |
3693 | #endif | |
3694 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3695 | XK_dead_diaeresis, |
79a7046c RS |
3696 | #else |
3697 | 0, | |
3698 | #endif | |
3699 | #ifdef XK_dead_macron | |
e9bf89a0 | 3700 | XK_dead_macron, |
79a7046c RS |
3701 | #else |
3702 | 0, | |
3703 | #endif | |
3704 | #ifdef XK_dead_degree | |
e9bf89a0 | 3705 | XK_dead_degree, |
79a7046c RS |
3706 | #else |
3707 | 0, | |
3708 | #endif | |
3709 | #ifdef XK_dead_acute | |
e9bf89a0 | 3710 | XK_dead_acute, |
79a7046c RS |
3711 | #else |
3712 | 0, | |
3713 | #endif | |
3714 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3715 | XK_dead_cedilla, |
79a7046c RS |
3716 | #else |
3717 | 0, | |
3718 | #endif | |
3719 | #ifdef XK_dead_breve | |
e9bf89a0 | 3720 | XK_dead_breve, |
79a7046c RS |
3721 | #else |
3722 | 0, | |
3723 | #endif | |
3724 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3725 | XK_dead_ogonek, |
79a7046c RS |
3726 | #else |
3727 | 0, | |
3728 | #endif | |
3729 | #ifdef XK_dead_caron | |
e9bf89a0 | 3730 | XK_dead_caron, |
79a7046c RS |
3731 | #else |
3732 | 0, | |
3733 | #endif | |
3734 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3735 | XK_dead_doubleacute, |
79a7046c RS |
3736 | #else |
3737 | 0, | |
3738 | #endif | |
3739 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3740 | XK_dead_abovedot, |
79a7046c RS |
3741 | #else |
3742 | 0, | |
3743 | #endif | |
e9bf89a0 RS |
3744 | }; |
3745 | ||
3746 | /* This is a list of Lisp names for special "accent" characters. | |
3747 | It parallels lispy_accent_codes. */ | |
3748 | ||
3749 | static char *lispy_accent_keys[] = | |
3750 | { | |
3751 | "dead-circumflex", | |
3752 | "dead-grave", | |
3753 | "dead-tilde", | |
3754 | "dead-diaeresis", | |
3755 | "dead-macron", | |
3756 | "dead-degree", | |
3757 | "dead-acute", | |
3758 | "dead-cedilla", | |
3759 | "dead-breve", | |
3760 | "dead-ogonek", | |
3761 | "dead-caron", | |
3762 | "dead-doubleacute", | |
3763 | "dead-abovedot", | |
3764 | }; | |
3765 | ||
e98a93eb GV |
3766 | #ifdef HAVE_NTGUI |
3767 | #define FUNCTION_KEY_OFFSET 0x0 | |
3768 | ||
3769 | char *lispy_function_keys[] = | |
3770 | { | |
3771 | 0, /* 0 */ | |
3772 | ||
3773 | 0, /* VK_LBUTTON 0x01 */ | |
3774 | 0, /* VK_RBUTTON 0x02 */ | |
3775 | "cancel", /* VK_CANCEL 0x03 */ | |
3776 | 0, /* VK_MBUTTON 0x04 */ | |
3777 | ||
3778 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3779 | ||
3780 | "backspace", /* VK_BACK 0x08 */ | |
3781 | "tab", /* VK_TAB 0x09 */ | |
3782 | ||
3783 | 0, 0, /* 0x0A .. 0x0B */ | |
3784 | ||
3785 | "clear", /* VK_CLEAR 0x0C */ | |
3786 | "return", /* VK_RETURN 0x0D */ | |
3787 | ||
3788 | 0, 0, /* 0x0E .. 0x0F */ | |
3789 | ||
1161d367 GV |
3790 | 0, /* VK_SHIFT 0x10 */ |
3791 | 0, /* VK_CONTROL 0x11 */ | |
3792 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 3793 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 3794 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
3795 | |
3796 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3797 | ||
1161d367 | 3798 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
3799 | |
3800 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3801 | ||
3802 | 0, /* VK_SPACE 0x20 */ | |
3803 | "prior", /* VK_PRIOR 0x21 */ | |
3804 | "next", /* VK_NEXT 0x22 */ | |
3805 | "end", /* VK_END 0x23 */ | |
3806 | "home", /* VK_HOME 0x24 */ | |
3807 | "left", /* VK_LEFT 0x25 */ | |
3808 | "up", /* VK_UP 0x26 */ | |
3809 | "right", /* VK_RIGHT 0x27 */ | |
3810 | "down", /* VK_DOWN 0x28 */ | |
3811 | "select", /* VK_SELECT 0x29 */ | |
3812 | "print", /* VK_PRINT 0x2A */ | |
3813 | "execute", /* VK_EXECUTE 0x2B */ | |
3814 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3815 | "insert", /* VK_INSERT 0x2D */ | |
3816 | "delete", /* VK_DELETE 0x2E */ | |
3817 | "help", /* VK_HELP 0x2F */ | |
3818 | ||
3819 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3820 | ||
3821 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3822 | ||
3823 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3824 | ||
3825 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3826 | ||
3827 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3828 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3829 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3830 | ||
e376f90d RS |
3831 | "lwindow", /* VK_LWIN 0x5B */ |
3832 | "rwindow", /* VK_RWIN 0x5C */ | |
3833 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3834 | |
3835 | 0, 0, /* 0x5E .. 0x5F */ | |
3836 | ||
3837 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3838 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3839 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3840 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3841 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3842 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3843 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3844 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3845 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3846 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3847 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3848 | "kp-add", /* VK_ADD 0x6B */ | |
3849 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3850 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3851 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3852 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3853 | "f1", /* VK_F1 0x70 */ | |
3854 | "f2", /* VK_F2 0x71 */ | |
3855 | "f3", /* VK_F3 0x72 */ | |
3856 | "f4", /* VK_F4 0x73 */ | |
3857 | "f5", /* VK_F5 0x74 */ | |
3858 | "f6", /* VK_F6 0x75 */ | |
3859 | "f7", /* VK_F7 0x76 */ | |
3860 | "f8", /* VK_F8 0x77 */ | |
3861 | "f9", /* VK_F9 0x78 */ | |
3862 | "f10", /* VK_F10 0x79 */ | |
3863 | "f11", /* VK_F11 0x7A */ | |
3864 | "f12", /* VK_F12 0x7B */ | |
3865 | "f13", /* VK_F13 0x7C */ | |
3866 | "f14", /* VK_F14 0x7D */ | |
3867 | "f15", /* VK_F15 0x7E */ | |
3868 | "f16", /* VK_F16 0x7F */ | |
3869 | "f17", /* VK_F17 0x80 */ | |
3870 | "f18", /* VK_F18 0x81 */ | |
3871 | "f19", /* VK_F19 0x82 */ | |
3872 | "f20", /* VK_F20 0x83 */ | |
3873 | "f21", /* VK_F21 0x84 */ | |
3874 | "f22", /* VK_F22 0x85 */ | |
3875 | "f23", /* VK_F23 0x86 */ | |
3876 | "f24", /* VK_F24 0x87 */ | |
3877 | ||
3878 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3879 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3880 | ||
3881 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3882 | "scroll", /* VK_SCROLL 0x91 */ | |
3883 | ||
e376f90d RS |
3884 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3885 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3886 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3887 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3888 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3889 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3890 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3891 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3892 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3893 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3894 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3895 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3896 | ||
3897 | 0, 0, /* 0x9E .. 0x9F */ | |
3898 | ||
e98a93eb GV |
3899 | /* |
3900 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 3901 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
3902 | * No other API or message will distinguish left and right keys this way. |
3903 | */ | |
3904 | /* 0xA0 .. 0xEF */ | |
3905 | ||
3906 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3907 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3908 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3909 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3910 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3911 | ||
3912 | /* 0xF0 .. 0xF5 */ | |
3913 | ||
3914 | 0, 0, 0, 0, 0, 0, | |
3915 | ||
3916 | "attn", /* VK_ATTN 0xF6 */ | |
3917 | "crsel", /* VK_CRSEL 0xF7 */ | |
3918 | "exsel", /* VK_EXSEL 0xF8 */ | |
3919 | "ereof", /* VK_EREOF 0xF9 */ | |
3920 | "play", /* VK_PLAY 0xFA */ | |
3921 | "zoom", /* VK_ZOOM 0xFB */ | |
3922 | "noname", /* VK_NONAME 0xFC */ | |
3923 | "pa1", /* VK_PA1 0xFD */ | |
3924 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 3925 | 0 /* 0xFF */ |
e98a93eb GV |
3926 | }; |
3927 | ||
04f215f0 | 3928 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3929 | |
37cd9f30 KH |
3930 | #ifdef XK_kana_A |
3931 | static char *lispy_kana_keys[] = | |
3932 | { | |
3933 | /* X Keysym value */ | |
3934 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3935 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3936 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3937 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3938 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3939 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3940 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3941 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3942 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3943 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3944 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3945 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3946 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3947 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3948 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3949 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3950 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3951 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3952 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3953 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3954 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3955 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3956 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3957 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3958 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3959 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3960 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3961 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3962 | }; | |
3963 | #endif /* XK_kana_A */ | |
3964 | ||
04f215f0 RS |
3965 | #define FUNCTION_KEY_OFFSET 0xff00 |
3966 | ||
284f4730 JB |
3967 | /* You'll notice that this table is arranged to be conveniently |
3968 | indexed by X Windows keysym values. */ | |
3969 | static char *lispy_function_keys[] = | |
3970 | { | |
3971 | /* X Keysym value */ | |
3972 | ||
75045dcb RS |
3973 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
3974 | "backspace", "tab", "linefeed", "clear", | |
3975 | 0, "return", 0, 0, | |
3976 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
3977 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 3978 | 0, 0, 0, 0, |
75045dcb RS |
3979 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
3980 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
3981 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
3982 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
3983 | "eisu-toggle", /* 0xff30...3f */ | |
3984 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
3985 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
3986 | ||
75045dcb RS |
3987 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
3988 | "down", "prior", "next", "end", | |
3989 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3990 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
3991 | "print", | |
3992 | "execute", | |
3993 | "insert", | |
3994 | 0, /* 0xff64 */ | |
3995 | "undo", | |
3996 | "redo", | |
3997 | "menu", | |
3998 | "find", | |
3999 | "cancel", | |
4000 | "help", | |
4001 | "break", /* 0xff6b */ | |
4002 | ||
75045dcb RS |
4003 | 0, 0, 0, 0, |
4004 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4005 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4006 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4007 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4008 | "kp-tab", /* 0xff89 */ | |
4009 | 0, 0, 0, | |
4010 | "kp-enter", /* 0xff8d */ | |
4011 | 0, 0, 0, | |
4012 | "kp-f1", /* 0xff91 */ | |
4013 | "kp-f2", | |
4014 | "kp-f3", | |
4015 | "kp-f4", | |
872157e7 RS |
4016 | "kp-home", /* 0xff95 */ |
4017 | "kp-left", | |
4018 | "kp-up", | |
4019 | "kp-right", | |
4020 | "kp-down", | |
4021 | "kp-prior", /* kp-page-up */ | |
4022 | "kp-next", /* kp-page-down */ | |
4023 | "kp-end", | |
4024 | "kp-begin", | |
4025 | "kp-insert", | |
4026 | "kp-delete", | |
4027 | 0, /* 0xffa0 */ | |
4028 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4029 | "kp-multiply", /* 0xffaa */ |
4030 | "kp-add", | |
4031 | "kp-separator", | |
4032 | "kp-subtract", | |
4033 | "kp-decimal", | |
4034 | "kp-divide", /* 0xffaf */ | |
4035 | "kp-0", /* 0xffb0 */ | |
4036 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4037 | 0, /* 0xffba */ | |
4038 | 0, 0, | |
4039 | "kp-equal", /* 0xffbd */ | |
4040 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4041 | "f2", |
4042 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4043 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4044 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4045 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4046 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4047 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4048 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4049 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4050 | }; |
284f4730 | 4051 | |
04f215f0 RS |
4052 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4053 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4054 | ||
4055 | static char *iso_lispy_function_keys[] = | |
4056 | { | |
4057 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4058 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4059 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4060 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4061 | "iso-lefttab", /* 0xfe20 */ | |
4062 | "iso-move-line-up", "iso-move-line-down", | |
4063 | "iso-partial-line-up", "iso-partial-line-down", | |
4064 | "iso-partial-space-left", "iso-partial-space-right", | |
4065 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4066 | "iso-release-margin-left", "iso-release-margin-right", | |
4067 | "iso-release-both-margins", | |
4068 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4069 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4070 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4071 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4072 | }; | |
4073 | ||
4074 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4075 | |
df0f2ba1 | 4076 | static char *lispy_mouse_names[] = |
284f4730 JB |
4077 | { |
4078 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
4079 | }; | |
4080 | ||
07de30b9 GV |
4081 | #ifdef WINDOWSNT |
4082 | /* mouse-wheel events are generated by the wheel on devices such as | |
4083 | the MS Intellimouse. The wheel sits in between the left and right | |
4084 | mouse buttons, and is typically used to scroll or zoom the window | |
4085 | underneath the pointer. mouse-wheel events specify the object on | |
4086 | which they operate, and a delta corresponding to the amount and | |
4087 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4088 | generates a mouse-2 event. */ | |
4089 | static char *lispy_mouse_wheel_names[] = | |
4090 | { | |
4091 | "mouse-wheel" | |
4092 | }; | |
a24dc617 | 4093 | |
07de30b9 GV |
4094 | #endif /* WINDOWSNT */ |
4095 | ||
a24dc617 RS |
4096 | /* drag-n-drop events are generated when a set of selected files are |
4097 | dragged from another application and dropped onto an Emacs window. */ | |
4098 | static char *lispy_drag_n_drop_names[] = | |
4099 | { | |
4100 | "drag-n-drop" | |
4101 | }; | |
4102 | ||
3c370943 | 4103 | /* Scroll bar parts. */ |
4bb994d1 | 4104 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4105 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4106 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4107 | |
3c370943 JB |
4108 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4109 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4110 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4111 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4112 | }; |
4113 | ||
5bf68f6e AS |
4114 | /* User signal events. */ |
4115 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4116 | ||
4117 | Lisp_Object *lispy_user_signals[] = | |
4118 | { | |
4119 | &Qusr1_signal, &Qusr2_signal | |
4120 | }; | |
4121 | ||
4bb994d1 | 4122 | |
7b4aedb9 | 4123 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4124 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4125 | |
4126 | The elements have the form | |
4127 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4128 | where REST is the cdr of a position as it would be reported in the event. | |
4129 | ||
4130 | The make_lispy_event function stores positions here to tell the | |
4131 | difference between click and drag events, and to store the starting | |
4132 | location to be included in drag events. */ | |
4133 | ||
4134 | static Lisp_Object button_down_location; | |
88cb0656 | 4135 | |
fbcd35bd JB |
4136 | /* Information about the most recent up-going button event: Which |
4137 | button, what location, and what time. */ | |
4138 | ||
559f9d04 RS |
4139 | static int last_mouse_button; |
4140 | static int last_mouse_x; | |
4141 | static int last_mouse_y; | |
4142 | static unsigned long button_down_time; | |
fbcd35bd | 4143 | |
564dc952 JB |
4144 | /* The maximum time between clicks to make a double-click, |
4145 | or Qnil to disable double-click detection, | |
4146 | or Qt for no time limit. */ | |
4147 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
4148 | |
4149 | /* The number of clicks in this multiple-click. */ | |
4150 | ||
4151 | int double_click_count; | |
4152 | ||
284f4730 JB |
4153 | /* Given a struct input_event, build the lisp event which represents |
4154 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4155 | movement buffer, which should have a movement event in it. |
4156 | ||
4157 | Note that events must be passed to this function in the order they | |
4158 | are received; this function stores the location of button presses | |
4159 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4160 | |
4161 | static Lisp_Object | |
4162 | make_lispy_event (event) | |
4163 | struct input_event *event; | |
4164 | { | |
79a7046c RS |
4165 | int i; |
4166 | ||
0220c518 | 4167 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4168 | { |
284f4730 JB |
4169 | /* A simple keystroke. */ |
4170 | case ascii_keystroke: | |
86e5706b | 4171 | { |
9343ab07 | 4172 | Lisp_Object lispy_c; |
e9bf89a0 | 4173 | int c = event->code & 0377; |
5a1c6df8 JB |
4174 | /* Turn ASCII characters into control characters |
4175 | when proper. */ | |
4176 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4177 | c = make_ctrl_char (c); |
4178 | ||
4179 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4180 | just above, and the shift key was taken care of by the X code, | |
4181 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4182 | c |= (event->modifiers |
4183 | & (meta_modifier | alt_modifier | |
4184 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4185 | /* Distinguish Shift-SPC from SPC. */ |
4186 | if ((event->code & 0377) == 040 | |
4187 | && event->modifiers & shift_modifier) | |
4188 | c |= shift_modifier; | |
559f9d04 | 4189 | button_down_time = 0; |
bb9e9bed | 4190 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4191 | return lispy_c; |
86e5706b | 4192 | } |
284f4730 JB |
4193 | |
4194 | /* A function key. The symbol may need to have modifier prefixes | |
4195 | tacked onto it. */ | |
4196 | case non_ascii_keystroke: | |
559f9d04 | 4197 | button_down_time = 0; |
e9bf89a0 RS |
4198 | |
4199 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4200 | if (event->code == lispy_accent_codes[i]) | |
4201 | return modify_event_symbol (i, | |
4202 | event->modifiers, | |
80e4aa30 | 4203 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4204 | lispy_accent_keys, &accent_key_syms, |
4205 | (sizeof (lispy_accent_keys) | |
4206 | / sizeof (lispy_accent_keys[0]))); | |
4207 | ||
270a208f | 4208 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4209 | if (event->code & (1 << 28)) |
4210 | { | |
4211 | /* We need to use an alist rather than a vector as the cache | |
4212 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4213 | if (NILP (current_kboard->system_key_syms)) |
4214 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4215 | return modify_event_symbol (event->code, |
80e4aa30 | 4216 | event->modifiers, |
7c97ffdc KH |
4217 | Qfunction_key, |
4218 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4219 | 0, ¤t_kboard->system_key_syms, |
4220 | (unsigned)-1); | |
80e4aa30 RS |
4221 | } |
4222 | ||
37cd9f30 KH |
4223 | #ifdef XK_kana_A |
4224 | if (event->code >= 0x400 && event->code < 0x500) | |
4225 | return modify_event_symbol (event->code - 0x400, | |
4226 | event->modifiers & ~shift_modifier, | |
4227 | Qfunction_key, Qnil, | |
4228 | lispy_kana_keys, &func_key_syms, | |
4229 | (sizeof (lispy_kana_keys) | |
4230 | / sizeof (lispy_kana_keys[0]))); | |
4231 | #endif /* XK_kana_A */ | |
4232 | ||
111c4138 | 4233 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4234 | if (event->code < FUNCTION_KEY_OFFSET |
4235 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4236 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4237 | event->modifiers, | |
4238 | Qfunction_key, Qnil, | |
4239 | iso_lispy_function_keys, &func_key_syms, | |
4240 | (sizeof (iso_lispy_function_keys) | |
4241 | / sizeof (iso_lispy_function_keys[0]))); | |
4242 | else | |
111c4138 | 4243 | #endif |
04f215f0 RS |
4244 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4245 | event->modifiers, | |
4246 | Qfunction_key, Qnil, | |
4247 | lispy_function_keys, &func_key_syms, | |
4248 | (sizeof (lispy_function_keys) | |
4249 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4250 | |
514354e9 | 4251 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4252 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4253 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4254 | case mouse_click: |
7ee32cda | 4255 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4256 | case scroll_bar_click: |
7ee32cda | 4257 | #endif |
284f4730 | 4258 | { |
e9bf89a0 | 4259 | int button = event->code; |
559f9d04 | 4260 | int is_double; |
7b4aedb9 | 4261 | Lisp_Object position; |
dbc4e1c1 JB |
4262 | Lisp_Object *start_pos_ptr; |
4263 | Lisp_Object start_pos; | |
284f4730 | 4264 | |
7b4aedb9 | 4265 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
4266 | abort (); |
4267 | ||
7b4aedb9 JB |
4268 | /* Build the position as appropriate for this mouse click. */ |
4269 | if (event->kind == mouse_click) | |
284f4730 | 4270 | { |
7b4aedb9 | 4271 | int part; |
598a9fa7 | 4272 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4273 | Lisp_Object window; |
7b4aedb9 | 4274 | Lisp_Object posn; |
7ee32cda | 4275 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4276 | int row, column; |
4277 | ||
5da3133a RS |
4278 | /* Ignore mouse events that were made on frame that |
4279 | have been deleted. */ | |
4280 | if (! FRAME_LIVE_P (f)) | |
4281 | return Qnil; | |
4282 | ||
7ee32cda GM |
4283 | /* EVENT->x and EVENT->y are frame-relative pixel |
4284 | coordinates at this place. Under old redisplay, COLUMN | |
4285 | and ROW are set to frame relative glyph coordinates | |
4286 | which are then used to determine whether this click is | |
4287 | in a menu (non-toolkit version). */ | |
4288 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4289 | &column, &row, NULL, 1); | |
7b4aedb9 | 4290 | |
eef045bf RS |
4291 | #ifndef USE_X_TOOLKIT |
4292 | /* In the non-toolkit version, clicks on the menu bar | |
4293 | are ordinary button events in the event buffer. | |
4294 | Distinguish them, and invoke the menu. | |
4295 | ||
4296 | (In the toolkit version, the toolkit handles the menu bar | |
4297 | and Emacs doesn't know about it until after the user | |
4298 | makes a selection.) */ | |
2ee250ec RS |
4299 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4300 | && (event->modifiers & down_modifier)) | |
bb936752 | 4301 | { |
b7c49376 | 4302 | Lisp_Object items, item; |
0a0e8fe6 RS |
4303 | int hpos; |
4304 | int i; | |
4305 | ||
2ee250ec | 4306 | #if 0 |
0a0e8fe6 RS |
4307 | /* Activate the menu bar on the down event. If the |
4308 | up event comes in before the menu code can deal with it, | |
4309 | just ignore it. */ | |
4310 | if (! (event->modifiers & down_modifier)) | |
4311 | return Qnil; | |
2ee250ec | 4312 | #endif |
0aafc975 | 4313 | |
7ee32cda | 4314 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4315 | item = Qnil; |
5ec75a55 | 4316 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4317 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4318 | { |
4319 | Lisp_Object pos, string; | |
b7c49376 | 4320 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 4321 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
4322 | if (NILP (string)) |
4323 | break; | |
9e20143a RS |
4324 | if (column >= XINT (pos) |
4325 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
4326 | { |
4327 | item = XVECTOR (items)->contents[i]; | |
4328 | break; | |
4329 | } | |
5ec75a55 | 4330 | } |
9e20143a | 4331 | |
7ee32cda GM |
4332 | /* ELisp manual 2.4b says (x y) are window relative but |
4333 | code says they are frame-relative. */ | |
5ec75a55 RS |
4334 | position |
4335 | = Fcons (event->frame_or_window, | |
4336 | Fcons (Qmenu_bar, | |
4337 | Fcons (Fcons (event->x, event->y), | |
4338 | Fcons (make_number (event->timestamp), | |
4339 | Qnil)))); | |
4340 | ||
b7c49376 | 4341 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4342 | } |
eef045bf | 4343 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4344 | |
7ee32cda GM |
4345 | /* Set `window' to the window under frame pixel coordinates |
4346 | event->x/event->y. */ | |
4347 | window = window_from_coordinates (f, XINT (event->x), | |
4348 | XINT (event->y), &part, 0); | |
0aafc975 | 4349 | |
8c18cbfb | 4350 | if (!WINDOWP (window)) |
78ced549 RS |
4351 | { |
4352 | window = event->frame_or_window; | |
4353 | posn = Qnil; | |
4354 | } | |
284f4730 | 4355 | else |
7b4aedb9 | 4356 | { |
7ee32cda GM |
4357 | /* It's a click in window window at frame coordinates |
4358 | event->x/ event->y. */ | |
4359 | struct window *w = XWINDOW (window); | |
4360 | ||
4361 | /* Get window relative coordinates. Original code | |
4362 | `rounded' this to glyph boundaries. */ | |
4363 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4364 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4365 | ||
4366 | /* Set event coordinates to window-relative coordinates | |
4367 | for constructing the Lisp event below. */ | |
4368 | XSETINT (event->x, wx); | |
4369 | XSETINT (event->y, wy); | |
4370 | ||
4371 | if (part == 1 || part == 3) | |
4372 | { | |
4373 | /* Mode line or top line. Look for a string under | |
4374 | the mouse that may have a `local-map' property. */ | |
4375 | Lisp_Object string; | |
4376 | int charpos; | |
4377 | ||
045dee35 | 4378 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4379 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4380 | if (STRINGP (string)) | |
4381 | string_info = Fcons (string, make_number (charpos)); | |
4382 | } | |
7b4aedb9 JB |
4383 | else if (part == 2) |
4384 | posn = Qvertical_line; | |
4385 | else | |
7ee32cda | 4386 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
7b4aedb9 JB |
4387 | } |
4388 | ||
5ec75a55 RS |
4389 | position |
4390 | = Fcons (window, | |
4391 | Fcons (posn, | |
4392 | Fcons (Fcons (event->x, event->y), | |
4393 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4394 | (NILP (string_info) |
4395 | ? Qnil | |
4396 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4397 | } |
7ee32cda | 4398 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4399 | else |
88cb0656 | 4400 | { |
7ee32cda | 4401 | /* It's a scrollbar click. */ |
9e20143a RS |
4402 | Lisp_Object window; |
4403 | Lisp_Object portion_whole; | |
4404 | Lisp_Object part; | |
4405 | ||
4406 | window = event->frame_or_window; | |
4407 | portion_whole = Fcons (event->x, event->y); | |
4408 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4409 | |
db08707d RS |
4410 | position |
4411 | = Fcons (window, | |
4412 | Fcons (Qvertical_scroll_bar, | |
4413 | Fcons (portion_whole, | |
4414 | Fcons (make_number (event->timestamp), | |
4415 | Fcons (part, Qnil))))); | |
88cb0656 | 4416 | } |
7ee32cda | 4417 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4418 | |
dbc4e1c1 JB |
4419 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
4420 | ||
4421 | start_pos = *start_pos_ptr; | |
4422 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4423 | |
559f9d04 RS |
4424 | is_double = (button == last_mouse_button |
4425 | && XINT (event->x) == last_mouse_x | |
4426 | && XINT (event->y) == last_mouse_y | |
4427 | && button_down_time != 0 | |
4428 | && (EQ (Vdouble_click_time, Qt) | |
4429 | || (INTEGERP (Vdouble_click_time) | |
4430 | && ((int)(event->timestamp - button_down_time) | |
4431 | < XINT (Vdouble_click_time))))); | |
4432 | last_mouse_button = button; | |
4433 | last_mouse_x = XINT (event->x); | |
4434 | last_mouse_y = XINT (event->y); | |
4435 | ||
7b4aedb9 JB |
4436 | /* If this is a button press, squirrel away the location, so |
4437 | we can decide later whether it was a click or a drag. */ | |
4438 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4439 | { |
4440 | if (is_double) | |
4441 | { | |
4442 | double_click_count++; | |
4443 | event->modifiers |= ((double_click_count > 2) | |
4444 | ? triple_modifier | |
4445 | : double_modifier); | |
4446 | } | |
4447 | else | |
4448 | double_click_count = 1; | |
4449 | button_down_time = event->timestamp; | |
4450 | *start_pos_ptr = Fcopy_alist (position); | |
4451 | } | |
7b4aedb9 | 4452 | |
88cb0656 | 4453 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4454 | see if this was a click or a drag. */ |
88cb0656 JB |
4455 | else if (event->modifiers & up_modifier) |
4456 | { | |
48e416d4 RS |
4457 | /* If we did not see a down before this up, |
4458 | ignore the up. Probably this happened because | |
4459 | the down event chose a menu item. | |
4460 | It would be an annoyance to treat the release | |
4461 | of the button that chose the menu item | |
4462 | as a separate event. */ | |
4463 | ||
8c18cbfb | 4464 | if (!CONSP (start_pos)) |
48e416d4 RS |
4465 | return Qnil; |
4466 | ||
88cb0656 | 4467 | event->modifiers &= ~up_modifier; |
48e416d4 | 4468 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4469 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4470 | event->modifiers |= click_modifier; |
4471 | else | |
48e416d4 | 4472 | #endif |
dbc4e1c1 JB |
4473 | { |
4474 | /* The third element of every position should be the (x,y) | |
4475 | pair. */ | |
9b8eb840 | 4476 | Lisp_Object down; |
dbc4e1c1 | 4477 | |
9b8eb840 | 4478 | down = Fnth (make_number (2), start_pos); |
7539e11f KR |
4479 | if (EQ (event->x, XCAR (down)) |
4480 | && EQ (event->y, XCDR (down))) | |
fbcd35bd | 4481 | { |
bc536d84 | 4482 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4483 | } |
4484 | else | |
4485 | { | |
559f9d04 | 4486 | button_down_time = 0; |
fbcd35bd JB |
4487 | event->modifiers |= drag_modifier; |
4488 | } | |
bc536d84 RS |
4489 | /* Don't check is_double; treat this as multiple |
4490 | if the down-event was multiple. */ | |
4491 | if (double_click_count > 1) | |
4492 | event->modifiers |= ((double_click_count > 2) | |
4493 | ? triple_modifier | |
4494 | : double_modifier); | |
dbc4e1c1 | 4495 | } |
88cb0656 JB |
4496 | } |
4497 | else | |
4498 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4499 | the up_modifier set. */ |
88cb0656 JB |
4500 | abort (); |
4501 | ||
88cb0656 | 4502 | { |
7b4aedb9 | 4503 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4504 | Lisp_Object head; |
4505 | ||
4506 | head = modify_event_symbol (button, | |
4507 | event->modifiers, | |
4508 | Qmouse_click, Qnil, | |
4509 | lispy_mouse_names, &mouse_syms, | |
4510 | (sizeof (lispy_mouse_names) | |
4511 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4512 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4513 | return Fcons (head, |
4514 | Fcons (start_pos, | |
4515 | Fcons (position, | |
4516 | Qnil))); | |
fbcd35bd JB |
4517 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4518 | return Fcons (head, | |
4519 | Fcons (position, | |
4520 | Fcons (make_number (double_click_count), | |
4521 | Qnil))); | |
88cb0656 JB |
4522 | else |
4523 | return Fcons (head, | |
7b4aedb9 | 4524 | Fcons (position, |
88cb0656 JB |
4525 | Qnil)); |
4526 | } | |
284f4730 | 4527 | } |
db08707d | 4528 | |
7ee32cda GM |
4529 | #if USE_TOOLKIT_SCROLL_BARS |
4530 | ||
4531 | /* We don't have down and up events if using toolkit scroll bars, | |
4532 | so make this always a click event. Store in the `part' of | |
4533 | the Lisp event a symbol which maps to the following actions: | |
4534 | ||
4535 | `above_handle' page up | |
4536 | `below_handle' page down | |
4537 | `up' line up | |
4538 | `down' line down | |
4539 | `top' top of buffer | |
4540 | `bottom' bottom of buffer | |
4541 | `handle' thumb has been dragged. | |
4542 | `end-scroll' end of interaction with scroll bar | |
4543 | ||
4544 | The incoming input_event contains in its `part' member an | |
4545 | index of type `enum scroll_bar_part' which we can use as an | |
4546 | index in scroll_bar_parts to get the appropriate symbol. */ | |
4547 | ||
4548 | case scroll_bar_click: | |
4549 | { | |
4550 | Lisp_Object position, head, window, portion_whole, part; | |
4551 | ||
4552 | window = event->frame_or_window; | |
4553 | portion_whole = Fcons (event->x, event->y); | |
4554 | part = *scroll_bar_parts[(int) event->part]; | |
4555 | ||
4556 | position | |
4557 | = Fcons (window, | |
4558 | Fcons (Qvertical_scroll_bar, | |
4559 | Fcons (portion_whole, | |
4560 | Fcons (make_number (event->timestamp), | |
4561 | Fcons (part, Qnil))))); | |
4562 | ||
4563 | /* Always treat scroll bar events as clicks. */ | |
4564 | event->modifiers |= click_modifier; | |
4565 | ||
4566 | /* Get the symbol we should use for the mouse click. */ | |
4567 | head = modify_event_symbol (event->code, | |
4568 | event->modifiers, | |
4569 | Qmouse_click, Qnil, | |
4570 | lispy_mouse_names, &mouse_syms, | |
4571 | (sizeof (lispy_mouse_names) | |
4572 | / sizeof (lispy_mouse_names[0]))); | |
4573 | return Fcons (head, Fcons (position, Qnil)); | |
4574 | } | |
4575 | ||
4576 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
4577 | ||
db08707d | 4578 | #ifdef WINDOWSNT |
fbd6baed | 4579 | case w32_scroll_bar_click: |
db08707d RS |
4580 | { |
4581 | int button = event->code; | |
4582 | int is_double; | |
4583 | Lisp_Object position; | |
4584 | Lisp_Object *start_pos_ptr; | |
4585 | Lisp_Object start_pos; | |
4586 | ||
4587 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4588 | abort (); | |
4589 | ||
4590 | { | |
4591 | Lisp_Object window; | |
4592 | Lisp_Object portion_whole; | |
4593 | Lisp_Object part; | |
4594 | ||
4595 | window = event->frame_or_window; | |
4596 | portion_whole = Fcons (event->x, event->y); | |
4597 | part = *scroll_bar_parts[(int) event->part]; | |
4598 | ||
e8886a1d RS |
4599 | position |
4600 | = Fcons (window, | |
4601 | Fcons (Qvertical_scroll_bar, | |
4602 | Fcons (portion_whole, | |
4603 | Fcons (make_number (event->timestamp), | |
4604 | Fcons (part, Qnil))))); | |
db08707d RS |
4605 | } |
4606 | ||
fbd6baed | 4607 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4608 | event->modifiers |= click_modifier; |
4609 | ||
4610 | { | |
4611 | /* Get the symbol we should use for the mouse click. */ | |
4612 | Lisp_Object head; | |
4613 | ||
4614 | head = modify_event_symbol (button, | |
4615 | event->modifiers, | |
4616 | Qmouse_click, Qnil, | |
4617 | lispy_mouse_names, &mouse_syms, | |
4618 | (sizeof (lispy_mouse_names) | |
4619 | / sizeof (lispy_mouse_names[0]))); | |
4620 | return Fcons (head, | |
4621 | Fcons (position, | |
4622 | Qnil)); | |
4623 | } | |
4624 | } | |
07de30b9 GV |
4625 | case mouse_wheel: |
4626 | { | |
4627 | int part; | |
4628 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4629 | Lisp_Object window; | |
4630 | Lisp_Object posn; | |
4631 | Lisp_Object head, position; | |
4632 | int row, column; | |
4633 | ||
4634 | /* Ignore mouse events that were made on frame that | |
4635 | have been deleted. */ | |
4636 | if (! FRAME_LIVE_P (f)) | |
4637 | return Qnil; | |
4638 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4639 | &column, &row, NULL, 1); | |
7ee32cda | 4640 | window = window_from_coordinates (f, column, row, &part, 0); |
07de30b9 GV |
4641 | |
4642 | if (!WINDOWP (window)) | |
4643 | { | |
4644 | window = event->frame_or_window; | |
4645 | posn = Qnil; | |
4646 | } | |
4647 | else | |
4648 | { | |
4649 | int pixcolumn, pixrow; | |
4650 | column -= XINT (XWINDOW (window)->left); | |
4651 | row -= XINT (XWINDOW (window)->top); | |
4652 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4653 | XSETINT (event->x, pixcolumn); | |
4654 | XSETINT (event->y, pixrow); | |
4655 | ||
4656 | if (part == 1) | |
4657 | posn = Qmode_line; | |
4658 | else if (part == 2) | |
4659 | posn = Qvertical_line; | |
7ee32cda | 4660 | else if (part == 3) |
045dee35 | 4661 | posn = Qheader_line; |
07de30b9 GV |
4662 | else |
4663 | XSETINT (posn, | |
4664 | buffer_posn_from_coords (XWINDOW (window), | |
4665 | column, row)); | |
4666 | } | |
db08707d | 4667 | |
07de30b9 GV |
4668 | { |
4669 | Lisp_Object head, position; | |
4670 | ||
4671 | position | |
4672 | = Fcons (window, | |
4673 | Fcons (posn, | |
4674 | Fcons (Fcons (event->x, event->y), | |
4675 | Fcons (make_number (event->timestamp), | |
4676 | Qnil)))); | |
4677 | ||
4678 | head = modify_event_symbol (0, event->modifiers, | |
4679 | Qmouse_wheel, Qnil, | |
4680 | lispy_mouse_wheel_names, | |
4681 | &mouse_wheel_syms, 1); | |
4682 | return Fcons (head, | |
4683 | Fcons (position, | |
4684 | Fcons (make_number (event->code), | |
4685 | Qnil))); | |
4686 | } | |
4687 | } | |
4688 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
4689 | |
4690 | case drag_n_drop: | |
4691 | { | |
4692 | int part; | |
4693 | FRAME_PTR f; | |
4694 | Lisp_Object window; | |
4695 | Lisp_Object posn; | |
a24dc617 RS |
4696 | Lisp_Object files; |
4697 | int row, column; | |
4698 | ||
4699 | /* The frame_or_window field should be a cons of the frame in | |
4700 | which the event occurred and a list of the filenames | |
4701 | dropped. */ | |
4702 | if (! CONSP (event->frame_or_window)) | |
4703 | abort (); | |
4704 | ||
7539e11f KR |
4705 | f = XFRAME (XCAR (event->frame_or_window)); |
4706 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
4707 | |
4708 | /* Ignore mouse events that were made on frames that | |
4709 | have been deleted. */ | |
4710 | if (! FRAME_LIVE_P (f)) | |
4711 | return Qnil; | |
4712 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4713 | &column, &row, NULL, 1); | |
7ee32cda | 4714 | window = window_from_coordinates (f, column, row, &part, 0); |
a24dc617 RS |
4715 | |
4716 | if (!WINDOWP (window)) | |
4717 | { | |
7539e11f | 4718 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
4719 | posn = Qnil; |
4720 | } | |
4721 | else | |
4722 | { | |
7ee32cda GM |
4723 | /* It's an event in window `window' at frame coordinates |
4724 | event->x/ event->y. */ | |
4725 | struct window *w = XWINDOW (window); | |
4726 | ||
4727 | /* Get window relative coordinates. */ | |
4728 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4729 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4730 | ||
4731 | /* Set event coordinates to window-relative coordinates | |
4732 | for constructing the Lisp event below. */ | |
4733 | XSETINT (event->x, wx); | |
4734 | XSETINT (event->y, wy); | |
a24dc617 RS |
4735 | |
4736 | if (part == 1) | |
4737 | posn = Qmode_line; | |
4738 | else if (part == 2) | |
4739 | posn = Qvertical_line; | |
7ee32cda | 4740 | else if (part == 3) |
045dee35 | 4741 | posn = Qheader_line; |
a24dc617 | 4742 | else |
7ee32cda | 4743 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
a24dc617 RS |
4744 | } |
4745 | ||
4746 | { | |
4747 | Lisp_Object head, position; | |
4748 | ||
4749 | position | |
4750 | = Fcons (window, | |
4751 | Fcons (posn, | |
4752 | Fcons (Fcons (event->x, event->y), | |
4753 | Fcons (make_number (event->timestamp), | |
4754 | Qnil)))); | |
4755 | ||
4756 | head = modify_event_symbol (0, event->modifiers, | |
4757 | Qdrag_n_drop, Qnil, | |
4758 | lispy_drag_n_drop_names, | |
4759 | &drag_n_drop_syms, 1); | |
4760 | return Fcons (head, | |
4761 | Fcons (position, | |
4762 | Fcons (files, | |
4763 | Qnil))); | |
4764 | } | |
4765 | } | |
514354e9 | 4766 | #endif /* HAVE_MOUSE */ |
284f4730 | 4767 | |
e98a93eb | 4768 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4769 | case menu_bar_event: |
4770 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4771 | if (!CONSP (event->frame_or_window)) | |
4772 | abort (); | |
7539e11f | 4773 | return XCDR (event->frame_or_window); |
2470a66f KH |
4774 | #endif |
4775 | ||
9ea173e8 | 4776 | case TOOL_BAR_EVENT: |
7ee32cda GM |
4777 | { |
4778 | Lisp_Object key; | |
4779 | if (!CONSP (event->frame_or_window)) | |
4780 | abort (); | |
4781 | key = XCDR (event->frame_or_window); | |
4782 | if (SYMBOLP (key)) | |
4783 | key = apply_modifiers (event->modifiers, key); | |
4784 | return key; | |
4785 | } | |
4786 | ||
5bf68f6e AS |
4787 | case user_signal: |
4788 | /* A user signal. */ | |
4789 | return *lispy_user_signals[event->code]; | |
4790 | ||
284f4730 JB |
4791 | /* The 'kind' field of the event is something we don't recognize. */ |
4792 | default: | |
48e416d4 | 4793 | abort (); |
284f4730 JB |
4794 | } |
4795 | } | |
4796 | ||
514354e9 | 4797 | #ifdef HAVE_MOUSE |
6cbff1cb | 4798 | |
284f4730 | 4799 | static Lisp_Object |
7b4aedb9 | 4800 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4801 | FRAME_PTR frame; |
7b4aedb9 | 4802 | Lisp_Object bar_window; |
3c370943 | 4803 | enum scroll_bar_part part; |
284f4730 | 4804 | Lisp_Object x, y; |
e5d77022 | 4805 | unsigned long time; |
284f4730 | 4806 | { |
3c370943 | 4807 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4808 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4809 | { |
9b8eb840 | 4810 | Lisp_Object part_sym; |
4bb994d1 | 4811 | |
9b8eb840 | 4812 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4813 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4814 | (Fcons (Fcons (bar_window, |
3c370943 | 4815 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4816 | Fcons (Fcons (x, y), |
4817 | Fcons (make_number (time), | |
cb5df6ae | 4818 | Fcons (part_sym, |
4bb994d1 JB |
4819 | Qnil))))), |
4820 | Qnil))); | |
4821 | } | |
4822 | ||
4823 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4824 | else |
4825 | { | |
4bb994d1 | 4826 | int area; |
9e20143a | 4827 | Lisp_Object window; |
4bb994d1 | 4828 | Lisp_Object posn; |
9e20143a | 4829 | |
9e20143a | 4830 | if (frame) |
7ee32cda GM |
4831 | /* It's in a frame; which window on that frame? */ |
4832 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
4833 | else |
4834 | window = Qnil; | |
4bb994d1 | 4835 | |
8c18cbfb | 4836 | if (WINDOWP (window)) |
4bb994d1 | 4837 | { |
7ee32cda | 4838 | struct window *w = XWINDOW (window); |
7ee32cda | 4839 | int wx, wy; |
7ee32cda GM |
4840 | |
4841 | /* Get window relative coordinates. */ | |
4842 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
4843 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
4844 | XSETINT (x, wx); | |
4845 | XSETINT (y, wy); | |
4846 | ||
4bb994d1 JB |
4847 | if (area == 1) |
4848 | posn = Qmode_line; | |
4849 | else if (area == 2) | |
4850 | posn = Qvertical_line; | |
7ee32cda | 4851 | else if (area == 3) |
045dee35 | 4852 | posn = Qheader_line; |
4bb994d1 | 4853 | else |
7ee32cda | 4854 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
4bb994d1 | 4855 | } |
e9bf89a0 RS |
4856 | else if (frame != 0) |
4857 | { | |
18cd2eeb | 4858 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4859 | posn = Qnil; |
4860 | } | |
284f4730 | 4861 | else |
4bb994d1 JB |
4862 | { |
4863 | window = Qnil; | |
4864 | posn = Qnil; | |
bb9e9bed KH |
4865 | XSETFASTINT (x, 0); |
4866 | XSETFASTINT (y, 0); | |
4bb994d1 | 4867 | } |
284f4730 | 4868 | |
4bb994d1 JB |
4869 | return Fcons (Qmouse_movement, |
4870 | Fcons (Fcons (window, | |
4871 | Fcons (posn, | |
4872 | Fcons (Fcons (x, y), | |
4873 | Fcons (make_number (time), | |
4874 | Qnil)))), | |
4875 | Qnil)); | |
4876 | } | |
284f4730 JB |
4877 | } |
4878 | ||
514354e9 | 4879 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4880 | |
cd21b839 JB |
4881 | /* Construct a switch frame event. */ |
4882 | static Lisp_Object | |
4883 | make_lispy_switch_frame (frame) | |
4884 | Lisp_Object frame; | |
4885 | { | |
4886 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4887 | } | |
0a7f1fc0 JB |
4888 | \f |
4889 | /* Manipulating modifiers. */ | |
284f4730 | 4890 | |
0a7f1fc0 | 4891 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4892 | |
0a7f1fc0 JB |
4893 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4894 | SYMBOL's name of the end of the modifiers; the string from this | |
4895 | position is the unmodified symbol name. | |
284f4730 | 4896 | |
0a7f1fc0 | 4897 | This doesn't use any caches. */ |
6da3dd3a | 4898 | |
0a7f1fc0 JB |
4899 | static int |
4900 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4901 | Lisp_Object symbol; |
0a7f1fc0 | 4902 | int *modifier_end; |
284f4730 JB |
4903 | { |
4904 | struct Lisp_String *name; | |
4905 | int i; | |
4906 | int modifiers; | |
284f4730 JB |
4907 | |
4908 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4909 | |
284f4730 JB |
4910 | modifiers = 0; |
4911 | name = XSYMBOL (symbol)->name; | |
4912 | ||
fc932ac6 | 4913 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
4914 | { |
4915 | int this_mod_end = 0; | |
4916 | int this_mod = 0; | |
284f4730 | 4917 | |
6da3dd3a RS |
4918 | /* See if the name continues with a modifier word. |
4919 | Check that the word appears, but don't check what follows it. | |
4920 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4921 | |
6da3dd3a RS |
4922 | switch (name->data[i]) |
4923 | { | |
4924 | #define SINGLE_LETTER_MOD(BIT) \ | |
4925 | (this_mod_end = i + 1, this_mod = BIT) | |
4926 | ||
6da3dd3a RS |
4927 | case 'A': |
4928 | SINGLE_LETTER_MOD (alt_modifier); | |
4929 | break; | |
284f4730 | 4930 | |
6da3dd3a RS |
4931 | case 'C': |
4932 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4933 | break; | |
284f4730 | 4934 | |
6da3dd3a RS |
4935 | case 'H': |
4936 | SINGLE_LETTER_MOD (hyper_modifier); | |
4937 | break; | |
4938 | ||
6da3dd3a RS |
4939 | case 'M': |
4940 | SINGLE_LETTER_MOD (meta_modifier); | |
4941 | break; | |
4942 | ||
6da3dd3a RS |
4943 | case 'S': |
4944 | SINGLE_LETTER_MOD (shift_modifier); | |
4945 | break; | |
4946 | ||
4947 | case 's': | |
6da3dd3a RS |
4948 | SINGLE_LETTER_MOD (super_modifier); |
4949 | break; | |
4950 | ||
0a7f1fc0 | 4951 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4952 | } |
4953 | ||
4954 | /* If we found no modifier, stop looking for them. */ | |
4955 | if (this_mod_end == 0) | |
4956 | break; | |
4957 | ||
4958 | /* Check there is a dash after the modifier, so that it | |
4959 | really is a modifier. */ | |
fc932ac6 RS |
4960 | if (this_mod_end >= STRING_BYTES (name) |
4961 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
4962 | break; |
4963 | ||
4964 | /* This modifier is real; look for another. */ | |
4965 | modifiers |= this_mod; | |
4966 | i = this_mod_end + 1; | |
4967 | } | |
284f4730 | 4968 | |
0a7f1fc0 | 4969 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4970 | if (! (modifiers & (down_modifier | drag_modifier |
4971 | | double_modifier | triple_modifier)) | |
fc932ac6 | 4972 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 4973 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4974 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4975 | modifiers |= click_modifier; |
4976 | ||
4977 | if (modifier_end) | |
4978 | *modifier_end = i; | |
4979 | ||
4980 | return modifiers; | |
4981 | } | |
4982 | ||
0a7f1fc0 JB |
4983 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4984 | prepended to the string BASE[0..BASE_LEN-1]. | |
4985 | This doesn't use any caches. */ | |
4986 | static Lisp_Object | |
301738ed | 4987 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4988 | int modifiers; |
4989 | char *base; | |
301738ed | 4990 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4991 | { |
4992 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4993 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4994 | reference to it. */ | |
301738ed RS |
4995 | char *new_mods |
4996 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 4997 | int mod_len; |
284f4730 | 4998 | |
284f4730 | 4999 | { |
0a7f1fc0 JB |
5000 | char *p = new_mods; |
5001 | ||
5002 | /* Only the event queue may use the `up' modifier; it should always | |
5003 | be turned into a click or drag event before presented to lisp code. */ | |
5004 | if (modifiers & up_modifier) | |
5005 | abort (); | |
5006 | ||
5007 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5008 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5009 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5010 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5011 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5012 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5013 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5014 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5015 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5016 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5017 | /* The click modifier is denoted by the absence of other modifiers. */ |
5018 | ||
5019 | *p = '\0'; | |
5020 | ||
5021 | mod_len = p - new_mods; | |
5022 | } | |
284f4730 | 5023 | |
0a7f1fc0 | 5024 | { |
9b8eb840 | 5025 | Lisp_Object new_name; |
df0f2ba1 | 5026 | |
301738ed RS |
5027 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5028 | mod_len + base_len_byte); | |
0a7f1fc0 | 5029 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 5030 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
5031 | |
5032 | return Fintern (new_name, Qnil); | |
5033 | } | |
5034 | } | |
5035 | ||
5036 | ||
0a7f1fc0 JB |
5037 | static char *modifier_names[] = |
5038 | { | |
fbcd35bd | 5039 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5040 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5041 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5042 | }; |
80645119 | 5043 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5044 | |
5045 | static Lisp_Object modifier_symbols; | |
5046 | ||
5047 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5048 | static Lisp_Object | |
5049 | lispy_modifier_list (modifiers) | |
5050 | int modifiers; | |
5051 | { | |
5052 | Lisp_Object modifier_list; | |
5053 | int i; | |
5054 | ||
5055 | modifier_list = Qnil; | |
80645119 | 5056 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5057 | if (modifiers & (1<<i)) |
80645119 JB |
5058 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5059 | modifier_list); | |
0a7f1fc0 JB |
5060 | |
5061 | return modifier_list; | |
5062 | } | |
5063 | ||
5064 | ||
5065 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5066 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5067 | MASK is the set of modifiers present in SYMBOL's name. | |
5068 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5069 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5070 | Qevent_symbol_elements property. */ | |
3d31316f | 5071 | |
1161d367 | 5072 | Lisp_Object |
0a7f1fc0 JB |
5073 | parse_modifiers (symbol) |
5074 | Lisp_Object symbol; | |
5075 | { | |
9b8eb840 | 5076 | Lisp_Object elements; |
0a7f1fc0 | 5077 | |
9b8eb840 | 5078 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5079 | if (CONSP (elements)) |
5080 | return elements; | |
5081 | else | |
5082 | { | |
5083 | int end; | |
ec0faad2 | 5084 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5085 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5086 | Lisp_Object mask; |
5087 | ||
9b8eb840 | 5088 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5089 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5090 | Qnil); |
5091 | ||
ec0faad2 | 5092 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 5093 | abort (); |
bb9e9bed | 5094 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5095 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5096 | ||
5097 | /* Cache the parsing results on SYMBOL. */ | |
5098 | Fput (symbol, Qevent_symbol_element_mask, | |
5099 | elements); | |
5100 | Fput (symbol, Qevent_symbol_elements, | |
5101 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5102 | ||
5103 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5104 | it would be nice to put that in unmodified's cache. | |
5105 | But we can't, since we're not sure that parse_modifiers is | |
5106 | canonical. */ | |
5107 | ||
5108 | return elements; | |
5109 | } | |
5110 | } | |
5111 | ||
5112 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5113 | BASE must be unmodified. | |
5114 | ||
5115 | This is like apply_modifiers_uncached, but uses BASE's | |
5116 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5117 | Qevent_symbol_elements properties, since it has that info anyway. |
5118 | ||
5119 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5120 | the modified symbol. */ | |
0a7f1fc0 JB |
5121 | static Lisp_Object |
5122 | apply_modifiers (modifiers, base) | |
5123 | int modifiers; | |
5124 | Lisp_Object base; | |
5125 | { | |
7b4aedb9 | 5126 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5127 | |
80645119 | 5128 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 5129 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 5130 | |
0a7f1fc0 | 5131 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5132 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5133 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5134 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5135 | |
5136 | if (CONSP (entry)) | |
7539e11f | 5137 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5138 | else |
5139 | { | |
df0f2ba1 | 5140 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5141 | new_symbol = apply_modifiers_uncached (modifiers, |
5142 | XSYMBOL (base)->name->data, | |
301738ed | 5143 | XSYMBOL (base)->name->size, |
fc932ac6 | 5144 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5145 | |
5146 | /* Add the new symbol to the base's cache. */ | |
5147 | entry = Fcons (index, new_symbol); | |
5148 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5149 | ||
5150 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5151 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5152 | Fput (new_symbol, Qevent_symbol_element_mask, |
5153 | Fcons (base, Fcons (index, Qnil))); | |
5154 | Fput (new_symbol, Qevent_symbol_elements, | |
5155 | Fcons (base, lispy_modifier_list (modifiers))); | |
5156 | } | |
0a7f1fc0 | 5157 | |
df0f2ba1 | 5158 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5159 | |
5160 | You'd think we could just set this once and for all when we | |
5161 | intern the symbol above, but reorder_modifiers may call us when | |
5162 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5163 | because it has a Qmodifier_cache property it must have its |
5164 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5165 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5166 | { | |
9b8eb840 | 5167 | Lisp_Object kind; |
7b4aedb9 | 5168 | |
9b8eb840 | 5169 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5170 | if (! NILP (kind)) |
5171 | Fput (new_symbol, Qevent_kind, kind); | |
5172 | } | |
5173 | ||
5174 | return new_symbol; | |
0a7f1fc0 JB |
5175 | } |
5176 | ||
5177 | ||
5178 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5179 | return a symbol with the modifiers placed in the canonical order. | |
5180 | Canonical order is alphabetical, except for down and drag, which | |
5181 | always come last. The 'click' modifier is never written out. | |
5182 | ||
5183 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5184 | and M-C-foo end up being equivalent in the keymap. */ | |
5185 | ||
5186 | Lisp_Object | |
5187 | reorder_modifiers (symbol) | |
5188 | Lisp_Object symbol; | |
5189 | { | |
5190 | /* It's hopefully okay to write the code this way, since everything | |
5191 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5192 | Lisp_Object parsed; |
0a7f1fc0 | 5193 | |
9b8eb840 | 5194 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5195 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5196 | XCAR (parsed)); | |
0a7f1fc0 JB |
5197 | } |
5198 | ||
5199 | ||
284f4730 JB |
5200 | /* For handling events, we often want to produce a symbol whose name |
5201 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5202 | to some base, like the name of a function key or mouse button. | |
5203 | modify_event_symbol produces symbols of this sort. | |
5204 | ||
5205 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5206 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5207 | in the table. | |
5208 | ||
80e4aa30 RS |
5209 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
5210 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
5211 | ||
284f4730 JB |
5212 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5213 | persist between calls to modify_event_symbol that it can use to | |
5214 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5215 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5216 | |
5217 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5218 | |
284f4730 JB |
5219 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5220 | whose prefixes should be applied to the symbol name. | |
5221 | ||
5222 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5223 | the returned symbol. |
88cb0656 JB |
5224 | |
5225 | The symbols we create are supposed to have an | |
eb8c3be9 | 5226 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5227 | in the symbol's name. */ |
5228 | ||
284f4730 | 5229 | static Lisp_Object |
80e4aa30 RS |
5230 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
5231 | name_table, symbol_table, table_size) | |
284f4730 JB |
5232 | int symbol_num; |
5233 | unsigned modifiers; | |
5234 | Lisp_Object symbol_kind; | |
80e4aa30 | 5235 | Lisp_Object name_alist; |
284f4730 JB |
5236 | char **name_table; |
5237 | Lisp_Object *symbol_table; | |
2c834fb3 | 5238 | unsigned int table_size; |
284f4730 | 5239 | { |
80e4aa30 RS |
5240 | Lisp_Object value; |
5241 | Lisp_Object symbol_int; | |
5242 | ||
2c834fb3 KH |
5243 | /* Get rid of the "vendor-specific" bit here. */ |
5244 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5245 | |
5246 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5247 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5248 | return Qnil; |
284f4730 | 5249 | |
80e4aa30 RS |
5250 | if (CONSP (*symbol_table)) |
5251 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5252 | ||
0a7f1fc0 | 5253 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5254 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5255 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5256 | we've never used that symbol before. */ | |
80e4aa30 | 5257 | else |
88cb0656 | 5258 | { |
80e4aa30 RS |
5259 | if (! VECTORP (*symbol_table) |
5260 | || XVECTOR (*symbol_table)->size != table_size) | |
5261 | { | |
5262 | Lisp_Object size; | |
0a7f1fc0 | 5263 | |
bb9e9bed | 5264 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5265 | *symbol_table = Fmake_vector (size, Qnil); |
5266 | } | |
284f4730 | 5267 | |
80e4aa30 RS |
5268 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5269 | } | |
284f4730 | 5270 | |
0a7f1fc0 | 5271 | /* Have we already used this symbol before? */ |
80e4aa30 | 5272 | if (NILP (value)) |
284f4730 | 5273 | { |
0a7f1fc0 | 5274 | /* No; let's create it. */ |
80e4aa30 | 5275 | if (!NILP (name_alist)) |
b64b4075 | 5276 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 5277 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5278 | value = intern (name_table[symbol_num]); |
b64b4075 | 5279 | |
e98a93eb | 5280 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5281 | if (NILP (value)) |
5282 | { | |
5283 | char *name = x_get_keysym_name (symbol_num); | |
5284 | if (name) | |
5285 | value = intern (name); | |
5286 | } | |
5287 | #endif | |
5288 | ||
b64b4075 | 5289 | if (NILP (value)) |
d1f50460 RS |
5290 | { |
5291 | char buf[20]; | |
5292 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5293 | value = intern (buf); |
d1f50460 | 5294 | } |
0a7f1fc0 | 5295 | |
80e4aa30 | 5296 | if (CONSP (*symbol_table)) |
4205cb08 | 5297 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5298 | else |
5299 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5300 | ||
df0f2ba1 | 5301 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5302 | builds the Qevent_symbol_elements property, which the user |
5303 | cares about. */ | |
80e4aa30 RS |
5304 | apply_modifiers (modifiers & click_modifier, value); |
5305 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5306 | } |
88cb0656 | 5307 | |
0a7f1fc0 | 5308 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5309 | return apply_modifiers (modifiers, value); |
284f4730 | 5310 | } |
6da3dd3a RS |
5311 | \f |
5312 | /* Convert a list that represents an event type, | |
5313 | such as (ctrl meta backspace), into the usual representation of that | |
5314 | event type as a number or a symbol. */ | |
5315 | ||
a1706c30 | 5316 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5317 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5318 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5319 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5320 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5321 | The return value is an event type (a character or symbol) which\n\ |
5322 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5323 | (event_desc) |
5324 | Lisp_Object event_desc; | |
6da3dd3a RS |
5325 | { |
5326 | Lisp_Object base; | |
5327 | int modifiers = 0; | |
5328 | Lisp_Object rest; | |
5329 | ||
5330 | base = Qnil; | |
e57d8fd8 | 5331 | rest = event_desc; |
6da3dd3a RS |
5332 | while (CONSP (rest)) |
5333 | { | |
5334 | Lisp_Object elt; | |
5335 | int this = 0; | |
5336 | ||
7539e11f KR |
5337 | elt = XCAR (rest); |
5338 | rest = XCDR (rest); | |
6da3dd3a | 5339 | |
3d31316f | 5340 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5341 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5342 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5343 | |
5344 | if (this != 0) | |
5345 | modifiers |= this; | |
5346 | else if (!NILP (base)) | |
5347 | error ("Two bases given in one event"); | |
5348 | else | |
5349 | base = elt; | |
5350 | ||
6da3dd3a RS |
5351 | } |
5352 | ||
3d31316f RS |
5353 | /* Let the symbol A refer to the character A. */ |
5354 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5355 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5356 | ||
6da3dd3a RS |
5357 | if (INTEGERP (base)) |
5358 | { | |
3d31316f RS |
5359 | /* Turn (shift a) into A. */ |
5360 | if ((modifiers & shift_modifier) != 0 | |
5361 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5362 | { | |
5363 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5364 | modifiers &= ~shift_modifier; | |
5365 | } | |
5366 | ||
5367 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5368 | if (modifiers & ctrl_modifier) |
3d31316f | 5369 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5370 | | make_ctrl_char (XINT (base))); |
5371 | else | |
5372 | return make_number (modifiers | XINT (base)); | |
5373 | } | |
5374 | else if (SYMBOLP (base)) | |
5375 | return apply_modifiers (modifiers, base); | |
5376 | else | |
5377 | error ("Invalid base event"); | |
5378 | } | |
5379 | ||
3d31316f RS |
5380 | /* Try to recognize SYMBOL as a modifier name. |
5381 | Return the modifier flag bit, or 0 if not recognized. */ | |
5382 | ||
5383 | static int | |
5384 | parse_solitary_modifier (symbol) | |
5385 | Lisp_Object symbol; | |
5386 | { | |
5387 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5388 | ||
5389 | switch (name->data[0]) | |
5390 | { | |
5391 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5392 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5393 | return BIT; |
5394 | ||
5395 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5396 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5397 | && ! strncmp (name->data, NAME, LEN)) \ |
5398 | return BIT; | |
5399 | ||
5400 | case 'A': | |
5401 | SINGLE_LETTER_MOD (alt_modifier); | |
5402 | break; | |
5403 | ||
5404 | case 'a': | |
5405 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5406 | break; | |
5407 | ||
5408 | case 'C': | |
5409 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5410 | break; | |
5411 | ||
5412 | case 'c': | |
5413 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5414 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5415 | break; | |
5416 | ||
5417 | case 'H': | |
5418 | SINGLE_LETTER_MOD (hyper_modifier); | |
5419 | break; | |
5420 | ||
5421 | case 'h': | |
5422 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5423 | break; | |
5424 | ||
5425 | case 'M': | |
5426 | SINGLE_LETTER_MOD (meta_modifier); | |
5427 | break; | |
5428 | ||
5429 | case 'm': | |
5430 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5431 | break; | |
5432 | ||
5433 | case 'S': | |
5434 | SINGLE_LETTER_MOD (shift_modifier); | |
5435 | break; | |
5436 | ||
5437 | case 's': | |
5438 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5439 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5440 | SINGLE_LETTER_MOD (super_modifier); | |
5441 | break; | |
5442 | ||
5443 | case 'd': | |
5444 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5445 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5446 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5447 | break; | |
5448 | ||
5449 | case 't': | |
5450 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5451 | break; | |
5452 | ||
5453 | #undef SINGLE_LETTER_MOD | |
5454 | #undef MULTI_LETTER_MOD | |
5455 | } | |
5456 | ||
5457 | return 0; | |
5458 | } | |
5459 | ||
6da3dd3a RS |
5460 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5461 | Such a list is not valid as an event, | |
5462 | but it can be a Lucid-style event type list. */ | |
5463 | ||
5464 | int | |
5465 | lucid_event_type_list_p (object) | |
5466 | Lisp_Object object; | |
5467 | { | |
5468 | Lisp_Object tail; | |
5469 | ||
5470 | if (! CONSP (object)) | |
5471 | return 0; | |
5472 | ||
7539e11f | 5473 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
5474 | { |
5475 | Lisp_Object elt; | |
7539e11f | 5476 | elt = XCAR (tail); |
6da3dd3a RS |
5477 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
5478 | return 0; | |
5479 | } | |
5480 | ||
5481 | return NILP (tail); | |
5482 | } | |
284f4730 | 5483 | \f |
284f4730 JB |
5484 | /* Store into *addr a value nonzero if terminal input chars are available. |
5485 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5486 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5487 | (In fact, this may actually read some input.) |
5488 | ||
5489 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5490 | |
5491 | static void | |
d9d4c147 | 5492 | get_input_pending (addr, do_timers_now) |
284f4730 | 5493 | int *addr; |
d9d4c147 | 5494 | int do_timers_now; |
284f4730 JB |
5495 | { |
5496 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5497 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5498 | |
5499 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5500 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5501 | return; | |
5502 | ||
5503 | /* Try to read some input and see how much we get. */ | |
5504 | gobble_input (0); | |
d9d4c147 | 5505 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5506 | } |
5507 | ||
81931ba1 | 5508 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 5509 | |
07a59269 | 5510 | void |
284f4730 JB |
5511 | gobble_input (expected) |
5512 | int expected; | |
5513 | { | |
5514 | #ifndef VMS | |
5515 | #ifdef SIGIO | |
5516 | if (interrupt_input) | |
5517 | { | |
32676c08 | 5518 | SIGMASKTYPE mask; |
4f8aaa74 | 5519 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 5520 | read_avail_input (expected); |
e065a56e | 5521 | sigsetmask (mask); |
284f4730 JB |
5522 | } |
5523 | else | |
81931ba1 RS |
5524 | #ifdef POLL_FOR_INPUT |
5525 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
5526 | { | |
5527 | SIGMASKTYPE mask; | |
4f8aaa74 | 5528 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
5529 | read_avail_input (expected); |
5530 | sigsetmask (mask); | |
5531 | } | |
5532 | else | |
87485d6f | 5533 | #endif |
284f4730 JB |
5534 | #endif |
5535 | read_avail_input (expected); | |
5536 | #endif | |
5537 | } | |
a8015ab5 | 5538 | |
241ceaf7 RS |
5539 | /* Put a buffer_switch_event in the buffer |
5540 | so that read_key_sequence will notice the new current buffer. */ | |
5541 | ||
07a59269 | 5542 | void |
a8015ab5 KH |
5543 | record_asynch_buffer_change () |
5544 | { | |
5545 | struct input_event event; | |
a30f0615 RS |
5546 | Lisp_Object tem; |
5547 | ||
a8015ab5 KH |
5548 | event.kind = buffer_switch_event; |
5549 | event.frame_or_window = Qnil; | |
241ceaf7 | 5550 | |
f65e6f7d | 5551 | #ifdef subprocesses |
a30f0615 RS |
5552 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
5553 | The purpose of the event is to make read_key_sequence look up the | |
5554 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
5555 | and the event could cause trouble by messing up (input-pending-p). */ | |
5556 | tem = Fwaiting_for_user_input_p (); | |
5557 | if (NILP (tem)) | |
5558 | return; | |
f65e6f7d RS |
5559 | #else |
5560 | /* We never need these events if we have no asynchronous subprocesses. */ | |
5561 | return; | |
5562 | #endif | |
a30f0615 | 5563 | |
241ceaf7 RS |
5564 | /* Make sure no interrupt happens while storing the event. */ |
5565 | #ifdef SIGIO | |
5566 | if (interrupt_input) | |
5567 | { | |
5568 | SIGMASKTYPE mask; | |
4f8aaa74 | 5569 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
5570 | kbd_buffer_store_event (&event); |
5571 | sigsetmask (mask); | |
5572 | } | |
5573 | else | |
5574 | #endif | |
5575 | { | |
5576 | stop_polling (); | |
5577 | kbd_buffer_store_event (&event); | |
5578 | start_polling (); | |
5579 | } | |
a8015ab5 | 5580 | } |
284f4730 JB |
5581 | \f |
5582 | #ifndef VMS | |
5583 | ||
5584 | /* Read any terminal input already buffered up by the system | |
5585 | into the kbd_buffer, but do not wait. | |
5586 | ||
5587 | EXPECTED should be nonzero if the caller knows there is some input. | |
5588 | ||
5589 | Except on VMS, all input is read by this function. | |
5590 | If interrupt_input is nonzero, this function MUST be called | |
5591 | only when SIGIO is blocked. | |
5592 | ||
5593 | Returns the number of keyboard chars read, or -1 meaning | |
5594 | this is a bad time to try to read input. */ | |
5595 | ||
5596 | static int | |
5597 | read_avail_input (expected) | |
5598 | int expected; | |
5599 | { | |
5600 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5601 | register int i; | |
5602 | int nread; | |
5603 | ||
5604 | if (read_socket_hook) | |
5605 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5606 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5607 | else |
5608 | { | |
17270835 RS |
5609 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5610 | the kbd_buffer can really hold. That may prevent loss | |
5611 | of characters on some systems when input is stuffed at us. */ | |
5612 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5613 | int n_to_read; |
284f4730 | 5614 | |
58788063 | 5615 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5616 | #ifdef WINDOWSNT |
5617 | return 0; | |
5618 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5619 | #ifdef MSDOS |
58788063 RS |
5620 | n_to_read = dos_keysns (); |
5621 | if (n_to_read == 0) | |
5622 | return 0; | |
c3a2738c | 5623 | #else /* not MSDOS */ |
284f4730 JB |
5624 | #ifdef FIONREAD |
5625 | /* Find out how much input is available. */ | |
437f6112 | 5626 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5627 | /* Formerly simply reported no input, but that sometimes led to |
5628 | a failure of Emacs to terminate. | |
5629 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5630 | /* ??? Is it really right to send the signal just to this process |
5631 | rather than to the whole process group? | |
5632 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5633 | kill (getpid (), SIGHUP); |
58788063 | 5634 | if (n_to_read == 0) |
284f4730 | 5635 | return 0; |
58788063 RS |
5636 | if (n_to_read > sizeof cbuf) |
5637 | n_to_read = sizeof cbuf; | |
284f4730 | 5638 | #else /* no FIONREAD */ |
0c04a67e | 5639 | #if defined (USG) || defined (DGUX) |
284f4730 | 5640 | /* Read some input if available, but don't wait. */ |
58788063 | 5641 | n_to_read = sizeof cbuf; |
437f6112 | 5642 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5643 | #else |
5644 | you lose; | |
5645 | #endif | |
5646 | #endif | |
80e4aa30 | 5647 | #endif /* not MSDOS */ |
bc536d84 | 5648 | #endif /* not WINDOWSNT */ |
284f4730 | 5649 | |
58788063 RS |
5650 | /* Now read; for one reason or another, this will not block. |
5651 | NREAD is set to the number of chars read. */ | |
9134775b | 5652 | do |
284f4730 | 5653 | { |
80e4aa30 | 5654 | #ifdef MSDOS |
0c04a67e | 5655 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5656 | nread = 1; |
5657 | #else | |
68c45bf0 | 5658 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5659 | #endif |
49854566 RS |
5660 | /* POSIX infers that processes which are not in the session leader's |
5661 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 5662 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
5663 | when the control tty is taken away. |
5664 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5665 | if (nread == -1 && errno == EIO) | |
5666 | kill (0, SIGHUP); | |
762f2b92 | 5667 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5668 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5669 | This looks incorrect, but it isn't, because _BSD causes | |
5670 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5671 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5672 | if (nread == 0) |
80e4aa30 | 5673 | kill (0, SIGHUP); |
284f4730 | 5674 | #endif |
9134775b | 5675 | } |
791587ee KH |
5676 | while ( |
5677 | /* We used to retry the read if it was interrupted. | |
5678 | But this does the wrong thing when O_NDELAY causes | |
5679 | an EAGAIN error. Does anybody know of a situation | |
5680 | where a retry is actually needed? */ | |
5681 | #if 0 | |
5682 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5683 | #ifdef EFAULT |
9134775b | 5684 | || errno == EFAULT |
80e4aa30 | 5685 | #endif |
284f4730 | 5686 | #ifdef EBADSLT |
9134775b | 5687 | || errno == EBADSLT |
284f4730 | 5688 | #endif |
791587ee KH |
5689 | ) |
5690 | #else | |
5691 | 0 | |
5692 | #endif | |
5693 | ); | |
284f4730 JB |
5694 | |
5695 | #ifndef FIONREAD | |
02c2c53f | 5696 | #if defined (USG) || defined (DGUX) |
437f6112 | 5697 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5698 | #endif /* USG or DGUX */ |
284f4730 JB |
5699 | #endif /* no FIONREAD */ |
5700 | for (i = 0; i < nread; i++) | |
5701 | { | |
5702 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5703 | buf[i].modifiers = 0; |
b04904fb | 5704 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5705 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5706 | if (meta_key != 2) |
5707 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5708 | |
5709 | buf[i].code = cbuf[i]; | |
788f89eb | 5710 | buf[i].frame_or_window = selected_frame; |
284f4730 JB |
5711 | } |
5712 | } | |
5713 | ||
5714 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5715 | for (i = 0; i < nread; i++) | |
5716 | { | |
5717 | kbd_buffer_store_event (&buf[i]); | |
5718 | /* Don't look at input that follows a C-g too closely. | |
5719 | This reduces lossage due to autorepeat on C-g. */ | |
5720 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5721 | && buf[i].code == quit_char) |
284f4730 JB |
5722 | break; |
5723 | } | |
5724 | ||
5725 | return nread; | |
5726 | } | |
5727 | #endif /* not VMS */ | |
5728 | \f | |
5729 | #ifdef SIGIO /* for entire page */ | |
5730 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5731 | ||
2ce30ea2 | 5732 | SIGTYPE |
284f4730 JB |
5733 | input_available_signal (signo) |
5734 | int signo; | |
5735 | { | |
5736 | /* Must preserve main program's value of errno. */ | |
5737 | int old_errno = errno; | |
5738 | #ifdef BSD4_1 | |
5739 | extern int select_alarmed; | |
5740 | #endif | |
5741 | ||
5970a8cb | 5742 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5743 | /* USG systems forget handlers when they are used; |
5744 | must reestablish each time */ | |
5745 | signal (signo, input_available_signal); | |
5746 | #endif /* USG */ | |
5747 | ||
5748 | #ifdef BSD4_1 | |
5749 | sigisheld (SIGIO); | |
5750 | #endif | |
5751 | ||
ffd56f97 JB |
5752 | if (input_available_clear_time) |
5753 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5754 | |
5755 | while (1) | |
5756 | { | |
5757 | int nread; | |
5758 | nread = read_avail_input (1); | |
5759 | /* -1 means it's not ok to read the input now. | |
5760 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5761 | 0 means there was no keyboard input available. */ | |
5762 | if (nread <= 0) | |
5763 | break; | |
5764 | ||
5765 | #ifdef BSD4_1 | |
5766 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5767 | #endif | |
5768 | } | |
5769 | ||
5770 | #ifdef BSD4_1 | |
5771 | sigfree (); | |
5772 | #endif | |
5773 | errno = old_errno; | |
5774 | } | |
5775 | #endif /* SIGIO */ | |
ad163903 JB |
5776 | |
5777 | /* Send ourselves a SIGIO. | |
5778 | ||
5779 | This function exists so that the UNBLOCK_INPUT macro in | |
5780 | blockinput.h can have some way to take care of input we put off | |
5781 | dealing with, without assuming that every file which uses | |
5782 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5783 | void | |
5784 | reinvoke_input_signal () | |
5785 | { | |
df0f2ba1 | 5786 | #ifdef SIGIO |
87dd9b9b | 5787 | kill (getpid (), SIGIO); |
ad163903 JB |
5788 | #endif |
5789 | } | |
5790 | ||
5791 | ||
284f4730 JB |
5792 | \f |
5793 | /* Return the prompt-string of a sparse keymap. | |
5794 | This is the first element which is a string. | |
5795 | Return nil if there is none. */ | |
5796 | ||
5797 | Lisp_Object | |
5798 | map_prompt (map) | |
5799 | Lisp_Object map; | |
5800 | { | |
5801 | while (CONSP (map)) | |
5802 | { | |
5803 | register Lisp_Object tem; | |
5804 | tem = Fcar (map); | |
8c18cbfb | 5805 | if (STRINGP (tem)) |
284f4730 JB |
5806 | return tem; |
5807 | map = Fcdr (map); | |
5808 | } | |
5809 | return Qnil; | |
5810 | } | |
5811 | ||
b7c49376 RS |
5812 | static void menu_bar_item (); |
5813 | static void menu_bar_one_keymap (); | |
5814 | ||
5815 | /* These variables hold the vector under construction within | |
5816 | menu_bar_items and its subroutines, and the current index | |
5817 | for storing into that vector. */ | |
5818 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5819 | static int menu_bar_items_index; |
5ec75a55 | 5820 | |
b7c49376 RS |
5821 | /* Return a vector of menu items for a menu bar, appropriate |
5822 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5823 | KEY STRING MAPLIST. |
b7c49376 RS |
5824 | |
5825 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5826 | |
5827 | Lisp_Object | |
b7c49376 RS |
5828 | menu_bar_items (old) |
5829 | Lisp_Object old; | |
5ec75a55 RS |
5830 | { |
5831 | /* The number of keymaps we're scanning right now, and the number of | |
5832 | keymaps we have allocated space for. */ | |
5833 | int nmaps; | |
5834 | ||
5835 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5836 | in the current keymaps, or nil where it is not a prefix. */ | |
5837 | Lisp_Object *maps; | |
5838 | ||
9f9c0e27 | 5839 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5840 | |
5841 | Lisp_Object result; | |
5842 | ||
5843 | int mapno; | |
47d319aa | 5844 | Lisp_Object oquit; |
5ec75a55 | 5845 | |
b7c49376 RS |
5846 | int i; |
5847 | ||
5848 | struct gcpro gcpro1; | |
5849 | ||
db60d856 JB |
5850 | /* In order to build the menus, we need to call the keymap |
5851 | accessors. They all call QUIT. But this function is called | |
5852 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5853 | quitting while building the menus. |
5854 | We do this instead of specbind because (1) errors will clear it anyway | |
5855 | and (2) this avoids risk of specpdl overflow. */ | |
5856 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5857 | Vinhibit_quit = Qt; |
db60d856 | 5858 | |
b7c49376 RS |
5859 | if (!NILP (old)) |
5860 | menu_bar_items_vector = old; | |
5861 | else | |
5862 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5863 | menu_bar_items_index = 0; | |
5864 | ||
5865 | GCPRO1 (menu_bar_items_vector); | |
5866 | ||
5ec75a55 RS |
5867 | /* Build our list of keymaps. |
5868 | If we recognize a function key and replace its escape sequence in | |
5869 | keybuf with its symbol, or if the sequence starts with a mouse | |
5870 | click and we need to switch buffers, we jump back here to rebuild | |
5871 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5872 | { |
5ec75a55 RS |
5873 | Lisp_Object *tmaps; |
5874 | ||
217258d5 | 5875 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5876 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5877 | { |
217258d5 KH |
5878 | /* Yes, use them (if non-nil) as well as the global map. */ |
5879 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5880 | nmaps = 0; | |
5881 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5882 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5883 | if (!NILP (Voverriding_local_map)) | |
5884 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5885 | } |
5886 | else | |
5887 | { | |
d0a49716 | 5888 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5889 | nmaps = current_minor_maps (NULL, &tmaps); |
5890 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5891 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
217258d5 | 5892 | maps[nmaps++] = get_local_map (PT, current_buffer); |
9dd3131c | 5893 | } |
217258d5 | 5894 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5895 | } |
5896 | ||
5897 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5898 | ||
5899 | result = Qnil; | |
5900 | ||
e58aa385 | 5901 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5902 | { |
5903 | if (! NILP (maps[mapno])) | |
c6a67acd | 5904 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5905 | else |
5906 | def = Qnil; | |
5907 | ||
5908 | tem = Fkeymapp (def); | |
5909 | if (!NILP (tem)) | |
b7c49376 | 5910 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5911 | } |
5912 | ||
b7c49376 RS |
5913 | /* Move to the end those items that should be at the end. */ |
5914 | ||
7539e11f | 5915 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 5916 | { |
b7c49376 RS |
5917 | int i; |
5918 | int end = menu_bar_items_index; | |
5919 | ||
35b3402f | 5920 | for (i = 0; i < end; i += 4) |
7539e11f | 5921 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 5922 | { |
35b3402f | 5923 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5924 | /* Move the item at index I to the end, |
5925 | shifting all the others forward. */ | |
5926 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5927 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5928 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5929 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5930 | if (end > i + 4) | |
5931 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5932 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5933 | (end - i - 4) * sizeof (Lisp_Object)); |
5934 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5935 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5936 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5937 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5938 | break; |
b7c49376 RS |
5939 | } |
5940 | } | |
9f9c0e27 | 5941 | |
0c9071cd | 5942 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5943 | i = menu_bar_items_index; |
35b3402f | 5944 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5945 | { |
5946 | Lisp_Object tem; | |
b7c49376 RS |
5947 | tem = Fmake_vector (make_number (2 * i), Qnil); |
5948 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5949 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5950 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5951 | } |
b7c49376 RS |
5952 | /* Add this item. */ |
5953 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5954 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5955 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5956 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5957 | menu_bar_items_index = i; |
a73c5e29 | 5958 | |
47d319aa | 5959 | Vinhibit_quit = oquit; |
b7c49376 RS |
5960 | UNGCPRO; |
5961 | return menu_bar_items_vector; | |
5ec75a55 RS |
5962 | } |
5963 | \f | |
5964 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5965 | in menu_bar_items_vector. */ |
5ec75a55 | 5966 | |
759860a6 RS |
5967 | static Lisp_Object menu_bar_one_keymap_changed_items; |
5968 | ||
b7c49376 RS |
5969 | static void |
5970 | menu_bar_one_keymap (keymap) | |
5971 | Lisp_Object keymap; | |
5ec75a55 | 5972 | { |
03cee6ae | 5973 | Lisp_Object tail, item; |
5ec75a55 | 5974 | |
759860a6 RS |
5975 | menu_bar_one_keymap_changed_items = Qnil; |
5976 | ||
5ec75a55 | 5977 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 5978 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 5979 | { |
7539e11f | 5980 | item = XCAR (tail); |
8c18cbfb | 5981 | if (CONSP (item)) |
7539e11f | 5982 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 5983 | else if (VECTORP (item)) |
5ec75a55 RS |
5984 | { |
5985 | /* Loop over the char values represented in the vector. */ | |
5986 | int len = XVECTOR (item)->size; | |
5987 | int c; | |
5988 | for (c = 0; c < len; c++) | |
5989 | { | |
5990 | Lisp_Object character; | |
bb9e9bed | 5991 | XSETFASTINT (character, c); |
e8886a1d | 5992 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
5993 | } |
5994 | } | |
5995 | } | |
5ec75a55 RS |
5996 | } |
5997 | ||
f5e09c8b RS |
5998 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5999 | If there's already an item for KEY, add this DEF to it. */ | |
6000 | ||
e8886a1d RS |
6001 | Lisp_Object item_properties; |
6002 | ||
b7c49376 | 6003 | static void |
e8886a1d RS |
6004 | menu_bar_item (key, item) |
6005 | Lisp_Object key, item; | |
5ec75a55 | 6006 | { |
e8886a1d | 6007 | struct gcpro gcpro1; |
b7c49376 | 6008 | int i; |
759860a6 | 6009 | Lisp_Object tem; |
5ec75a55 | 6010 | |
e8886a1d | 6011 | if (EQ (item, Qundefined)) |
e58aa385 | 6012 | { |
f5e09c8b | 6013 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6014 | discard any previously made menu bar item. */ |
b7c49376 | 6015 | |
35b3402f | 6016 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6017 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6018 | { | |
35b3402f RS |
6019 | if (menu_bar_items_index > i + 4) |
6020 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6021 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6022 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6023 | menu_bar_items_index -= 4; | |
b7c49376 RS |
6024 | return; |
6025 | } | |
8aa034e1 RS |
6026 | |
6027 | /* If there's no definition for this key yet, | |
6028 | just ignore `undefined'. */ | |
6029 | return; | |
e58aa385 RS |
6030 | } |
6031 | ||
e8886a1d RS |
6032 | GCPRO1 (key); /* Is this necessary? */ |
6033 | i = parse_menu_item (item, 0, 1); | |
6034 | UNGCPRO; | |
6035 | if (!i) | |
b7c49376 | 6036 | return; |
5ec75a55 | 6037 | |
759860a6 RS |
6038 | /* If this keymap has already contributed to this KEY, |
6039 | don't contribute to it a second time. */ | |
6040 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
6041 | if (!NILP (tem)) | |
6042 | return; | |
6043 | ||
6044 | menu_bar_one_keymap_changed_items | |
6045 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6046 | ||
e8886a1d RS |
6047 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6048 | ||
f5e09c8b | 6049 | /* Find any existing item for this KEY. */ |
35b3402f | 6050 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6051 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6052 | break; | |
6053 | ||
f5e09c8b | 6054 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6055 | if (i == menu_bar_items_index) |
6056 | { | |
6057 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6058 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6059 | { |
6060 | Lisp_Object tem; | |
b7c49376 RS |
6061 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6062 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6063 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6064 | menu_bar_items_vector = tem; | |
6065 | } | |
e8886a1d | 6066 | |
b7c49376 RS |
6067 | /* Add this item. */ |
6068 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6069 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6070 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6071 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6072 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6073 | menu_bar_items_index = i; |
6074 | } | |
e8886a1d | 6075 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6076 | else |
6077 | { | |
6078 | Lisp_Object old; | |
6079 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6080 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6081 | } |
5ec75a55 RS |
6082 | } |
6083 | \f | |
e8886a1d RS |
6084 | /* This is used as the handler when calling menu_item_eval_property. */ |
6085 | static Lisp_Object | |
6086 | menu_item_eval_property_1 (arg) | |
6087 | Lisp_Object arg; | |
6088 | { | |
6089 | /* If we got a quit from within the menu computation, | |
6090 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6091 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6092 | Fsignal (Qquit, Qnil); |
6093 | ||
6094 | return Qnil; | |
6095 | } | |
6096 | ||
6097 | /* Evaluate an expression and return the result (or nil if something | |
6098 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6099 | Lisp_Object |
e8886a1d RS |
6100 | menu_item_eval_property (sexpr) |
6101 | Lisp_Object sexpr; | |
6102 | { | |
44e553a3 | 6103 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6104 | Lisp_Object val; |
44e553a3 | 6105 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6106 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6107 | menu_item_eval_property_1); | |
44e553a3 | 6108 | return unbind_to (count, val); |
e8886a1d RS |
6109 | } |
6110 | ||
6111 | /* This function parses a menu item and leaves the result in the | |
6112 | vector item_properties. | |
6113 | ITEM is a key binding, a possible menu item. | |
6114 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6115 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6116 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6117 | top level. |
fd3613d7 | 6118 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6119 | parse_menu_item returns true if the item is a menu item and false |
6120 | otherwise. */ | |
6121 | ||
6122 | int | |
6123 | parse_menu_item (item, notreal, inmenubar) | |
6124 | Lisp_Object item; | |
6125 | int notreal, inmenubar; | |
6126 | { | |
adc1d5c8 | 6127 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6128 | Lisp_Object cachelist; |
6129 | Lisp_Object filter; | |
6130 | Lisp_Object keyhint; | |
e8886a1d | 6131 | int i; |
74c1de23 RS |
6132 | int newcache = 0; |
6133 | ||
07ba902e RS |
6134 | cachelist = Qnil; |
6135 | filter = Qnil; | |
6136 | keyhint = Qnil; | |
6137 | ||
e8886a1d RS |
6138 | if (!CONSP (item)) |
6139 | return 0; | |
6140 | ||
e8886a1d RS |
6141 | /* Create item_properties vector if necessary. */ |
6142 | if (NILP (item_properties)) | |
6143 | item_properties | |
6144 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6145 | ||
6146 | /* Initialize optional entries. */ | |
6147 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
6148 | XVECTOR (item_properties)->contents[i] = Qnil; | |
6149 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = Qt; | |
6150 | ||
6151 | /* Save the item here to protect it from GC. */ | |
6152 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ITEM] = item; | |
6153 | ||
7539e11f | 6154 | item_string = XCAR (item); |
e8886a1d RS |
6155 | |
6156 | start = item; | |
7539e11f | 6157 | item = XCDR (item); |
e8886a1d RS |
6158 | if (STRINGP (item_string)) |
6159 | { | |
6160 | /* Old format menu item. */ | |
6161 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; | |
6162 | ||
6163 | /* Maybe help string. */ | |
7539e11f | 6164 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d RS |
6165 | { |
6166 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6167 | = XCAR (item); |
e8886a1d | 6168 | start = item; |
7539e11f | 6169 | item = XCDR (item); |
e8886a1d RS |
6170 | } |
6171 | ||
6172 | /* Maybee key binding cache. */ | |
7539e11f KR |
6173 | if (CONSP (item) && CONSP (XCAR (item)) |
6174 | && (NILP (XCAR (XCAR (item))) | |
6175 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6176 | { |
7539e11f KR |
6177 | cachelist = XCAR (item); |
6178 | item = XCDR (item); | |
e8886a1d RS |
6179 | } |
6180 | ||
6181 | /* This is the real definition--the function to run. */ | |
6182 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = item; | |
6183 | ||
6184 | /* Get enable property, if any. */ | |
6185 | if (SYMBOLP (item)) | |
6186 | { | |
6187 | tem = Fget (item, Qmenu_enable); | |
6188 | if (!NILP (tem)) | |
6189 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; | |
6190 | } | |
6191 | } | |
6192 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6193 | { | |
6194 | /* New format menu item. */ | |
6195 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] | |
7539e11f KR |
6196 | = XCAR (item); |
6197 | start = XCDR (item); | |
e8886a1d RS |
6198 | if (CONSP (start)) |
6199 | { | |
6200 | /* We have a real binding. */ | |
6201 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] | |
7539e11f | 6202 | = XCAR (start); |
e8886a1d | 6203 | |
7539e11f | 6204 | item = XCDR (start); |
e8886a1d | 6205 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6206 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6207 | { |
7539e11f KR |
6208 | cachelist = XCAR (item); |
6209 | item = XCDR (item); | |
e8886a1d RS |
6210 | } |
6211 | ||
6212 | /* Parse properties. */ | |
7539e11f | 6213 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6214 | { |
7539e11f KR |
6215 | tem = XCAR (item); |
6216 | item = XCDR (item); | |
e8886a1d RS |
6217 | |
6218 | if (EQ (tem, QCenable)) | |
6219 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] | |
7539e11f | 6220 | = XCAR (item); |
e8886a1d RS |
6221 | else if (EQ (tem, QCvisible) && !notreal) |
6222 | { | |
6223 | /* If got a visible property and that evaluates to nil | |
6224 | then ignore this item. */ | |
7539e11f | 6225 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6226 | if (NILP (tem)) |
adc1d5c8 | 6227 | return 0; |
e8886a1d RS |
6228 | } |
6229 | else if (EQ (tem, QChelp)) | |
6230 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6231 | = XCAR (item); |
e8886a1d | 6232 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6233 | filter = item; |
6234 | else if (EQ (tem, QCkey_sequence)) | |
6235 | { | |
7539e11f | 6236 | tem = XCAR (item); |
74c1de23 RS |
6237 | if (NILP (cachelist) |
6238 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6239 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6240 | keyhint = item; | |
6241 | } | |
6242 | else if (EQ (tem, QCkeys)) | |
6243 | { | |
7539e11f | 6244 | tem = XCAR (item); |
03cee6ae | 6245 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
74c1de23 RS |
6246 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] |
6247 | = tem; | |
6248 | } | |
7539e11f | 6249 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6250 | { |
74c1de23 | 6251 | Lisp_Object type; |
7539e11f KR |
6252 | tem = XCAR (item); |
6253 | type = XCAR (tem); | |
e8886a1d RS |
6254 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6255 | { | |
6256 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
7539e11f | 6257 | = XCDR (tem); |
e8886a1d RS |
6258 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE] |
6259 | = type; | |
6260 | } | |
6261 | } | |
7539e11f | 6262 | item = XCDR (item); |
e8886a1d RS |
6263 | } |
6264 | } | |
6265 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6266 | return 0; |
e8886a1d RS |
6267 | } |
6268 | else | |
adc1d5c8 | 6269 | return 0; /* not a menu item */ |
e8886a1d RS |
6270 | |
6271 | /* If item string is not a string, evaluate it to get string. | |
6272 | If we don't get a string, skip this item. */ | |
6273 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6274 | if (!(STRINGP (item_string) || notreal)) | |
6275 | { | |
6276 | item_string = menu_item_eval_property (item_string); | |
6277 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6278 | return 0; |
e8886a1d RS |
6279 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; |
6280 | } | |
6281 | ||
6282 | /* If got a filter apply it on definition. */ | |
6283 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; | |
6284 | if (!NILP (filter)) | |
6285 | { | |
7539e11f | 6286 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6287 | list2 (Qquote, def))); |
6288 | ||
e8886a1d RS |
6289 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = def; |
6290 | } | |
6291 | ||
6292 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6293 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6294 | if (NILP (def)) |
adc1d5c8 | 6295 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6296 | |
6297 | /* Enable or disable selection of item. */ | |
6298 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; | |
6299 | if (!EQ (tem, Qt)) | |
6300 | { | |
6301 | if (notreal) | |
6302 | tem = Qt; | |
6303 | else | |
6304 | tem = menu_item_eval_property (tem); | |
6305 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6306 | return 0; /* Ignore disabled items in menu bar. */ |
e8886a1d RS |
6307 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; |
6308 | } | |
6309 | ||
6310 | /* See if this is a separate pane or a submenu. */ | |
74c1de23 | 6311 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
e8886a1d | 6312 | tem = get_keymap_1 (def, 0, 1); |
9ac425d1 | 6313 | /* For a subkeymap, just record its details and exit. */ |
e8886a1d RS |
6314 | if (!NILP (tem)) |
6315 | { | |
6316 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP] = tem; | |
6317 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = tem; | |
e8886a1d RS |
6318 | return 1; |
6319 | } | |
9ac425d1 RS |
6320 | /* At the top level in the menu bar, do likewise for commands also. |
6321 | The menu bar does not display equivalent key bindings anyway. | |
6322 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6323 | if (inmenubar > 0) | |
6324 | return 1; | |
e8886a1d RS |
6325 | |
6326 | /* This is a command. See if there is an equivalent key binding. */ | |
6327 | if (NILP (cachelist)) | |
6328 | { | |
74c1de23 | 6329 | /* We have to create a cachelist. */ |
e8886a1d | 6330 | CHECK_IMPURE (start); |
7539e11f KR |
6331 | XCDR (start) = Fcons (Fcons (Qnil, Qnil), XCDR (start)); |
6332 | cachelist = XCAR (XCDR (start)); | |
74c1de23 RS |
6333 | newcache = 1; |
6334 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6335 | if (!NILP (keyhint)) | |
6336 | { | |
7539e11f | 6337 | XCAR (cachelist) = XCAR (keyhint); |
74c1de23 RS |
6338 | newcache = 0; |
6339 | } | |
6340 | else if (STRINGP (tem)) | |
6341 | { | |
7539e11f KR |
6342 | XCDR (cachelist) = Fsubstitute_command_keys (tem); |
6343 | XCAR (cachelist) = Qt; | |
74c1de23 RS |
6344 | } |
6345 | } | |
7539e11f | 6346 | tem = XCAR (cachelist); |
74c1de23 RS |
6347 | if (!EQ (tem, Qt)) |
6348 | { | |
6349 | int chkcache = 0; | |
6350 | Lisp_Object prefix; | |
6351 | ||
6352 | if (!NILP (tem)) | |
6353 | tem = Fkey_binding (tem, Qnil); | |
6354 | ||
6355 | prefix = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6356 | if (CONSP (prefix)) | |
6357 | { | |
7539e11f KR |
6358 | def = XCAR (prefix); |
6359 | prefix = XCDR (prefix); | |
74c1de23 | 6360 | } |
e8886a1d | 6361 | else |
74c1de23 RS |
6362 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6363 | ||
7539e11f | 6364 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
6365 | { |
6366 | if (newcache /* Always check first time. */ | |
6367 | /* Should we check everything when precomputing key | |
6368 | bindings? */ | |
6369 | /* || notreal */ | |
6370 | /* If something had no key binding before, don't recheck it | |
6371 | because that is too slow--except if we have a list of | |
6372 | rebound commands in Vdefine_key_rebound_commands, do | |
6373 | recheck any command that appears in that list. */ | |
6374 | || (CONSP (Vdefine_key_rebound_commands) | |
6375 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6376 | chkcache = 1; | |
6377 | } | |
6378 | /* We had a saved key. Is it still bound to the command? */ | |
6379 | else if (NILP (tem) | |
03cee6ae GM |
6380 | || (!EQ (tem, def) |
6381 | /* If the command is an alias for another | |
6382 | (such as lmenu.el set it up), check if the | |
6383 | original command matches the cached command. */ | |
6384 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
6385 | chkcache = 1; /* Need to recompute key binding. */ |
6386 | ||
6387 | if (chkcache) | |
6388 | { | |
6389 | /* Recompute equivalent key binding. If the command is an alias | |
6390 | for another (such as lmenu.el set it up), see if the original | |
6391 | command name has equivalent keys. Otherwise look up the | |
6392 | specified command itself. We don't try both, because that | |
6393 | makes lmenu menus slow. */ | |
6394 | if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function) | |
6395 | && ! NILP (Fget (def, Qmenu_alias))) | |
6396 | def = XSYMBOL (def)->function; | |
6397 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
7539e11f | 6398 | XCAR (cachelist) = tem; |
74c1de23 RS |
6399 | if (NILP (tem)) |
6400 | { | |
7539e11f | 6401 | XCDR (cachelist) = Qnil; |
74c1de23 RS |
6402 | chkcache = 0; |
6403 | } | |
6404 | } | |
7539e11f | 6405 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 6406 | { |
7539e11f | 6407 | tem = XCAR (cachelist); |
74c1de23 RS |
6408 | chkcache = 1; |
6409 | } | |
6410 | ||
6411 | newcache = chkcache; | |
6412 | if (chkcache) | |
6413 | { | |
6414 | tem = Fkey_description (tem); | |
6415 | if (CONSP (prefix)) | |
6416 | { | |
7539e11f KR |
6417 | if (STRINGP (XCAR (prefix))) |
6418 | tem = concat2 (XCAR (prefix), tem); | |
6419 | if (STRINGP (XCDR (prefix))) | |
6420 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 6421 | } |
7539e11f | 6422 | XCDR (cachelist) = tem; |
74c1de23 RS |
6423 | } |
6424 | } | |
6425 | ||
7539e11f | 6426 | tem = XCDR (cachelist); |
74c1de23 | 6427 | if (newcache && !NILP (tem)) |
e8886a1d | 6428 | { |
74c1de23 | 6429 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
7539e11f | 6430 | XCDR (cachelist) = tem; |
e8886a1d RS |
6431 | } |
6432 | ||
6433 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6434 | if (notreal) | |
adc1d5c8 | 6435 | return 1; |
e8886a1d RS |
6436 | |
6437 | /* If we have an equivalent key binding, use that. */ | |
adc1d5c8 RS |
6438 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] = tem; |
6439 | ||
6440 | /* Include this when menu help is implemented. | |
6441 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6442 | if (!(NILP (tem) || STRINGP (tem))) | |
6443 | { | |
6444 | tem = menu_item_eval_property (tem); | |
6445 | if (!STRINGP (tem)) | |
6446 | tem = Qnil; | |
6447 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6448 | } | |
e8886a1d RS |
6449 | */ |
6450 | ||
6451 | /* Handle radio buttons or toggle boxes. */ | |
6452 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6453 | if (!NILP (tem)) | |
6454 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6455 | = menu_item_eval_property (tem); | |
6456 | ||
e8886a1d RS |
6457 | return 1; |
6458 | } | |
7ee32cda GM |
6459 | |
6460 | ||
6461 | \f | |
6462 | /*********************************************************************** | |
6463 | Tool-bars | |
6464 | ***********************************************************************/ | |
6465 | ||
9ea173e8 GM |
6466 | /* A vector holding tool bar items while they are parsed in function |
6467 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
6468 | in the vector. */ | |
7ee32cda | 6469 | |
9ea173e8 | 6470 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 6471 | |
9ea173e8 GM |
6472 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
6473 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 6474 | |
9ea173e8 | 6475 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 6476 | |
9ea173e8 | 6477 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 6478 | |
9ea173e8 | 6479 | static int ntool_bar_items; |
7ee32cda | 6480 | |
9ea173e8 | 6481 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 6482 | |
9ea173e8 | 6483 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
6484 | Lisp_Object QCimage; |
6485 | ||
6486 | /* Function prototypes. */ | |
6487 | ||
9ea173e8 GM |
6488 | static void init_tool_bar_items P_ ((Lisp_Object)); |
6489 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6490 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6491 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
6492 | |
6493 | ||
9ea173e8 | 6494 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 6495 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 6496 | tool bar items found. */ |
7ee32cda GM |
6497 | |
6498 | Lisp_Object | |
9ea173e8 | 6499 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
6500 | Lisp_Object reuse; |
6501 | int *nitems; | |
6502 | { | |
6503 | Lisp_Object *maps; | |
6504 | int nmaps, i; | |
6505 | Lisp_Object oquit; | |
6506 | Lisp_Object *tmaps; | |
6507 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
6508 | extern Lisp_Object Voverriding_local_map; | |
6509 | ||
6510 | *nitems = 0; | |
6511 | ||
6512 | /* In order to build the menus, we need to call the keymap | |
6513 | accessors. They all call QUIT. But this function is called | |
6514 | during redisplay, during which a quit is fatal. So inhibit | |
6515 | quitting while building the menus. We do this instead of | |
6516 | specbind because (1) errors will clear it anyway and (2) this | |
6517 | avoids risk of specpdl overflow. */ | |
6518 | oquit = Vinhibit_quit; | |
6519 | Vinhibit_quit = Qt; | |
6520 | ||
9ea173e8 GM |
6521 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
6522 | init_tool_bar_items (reuse); | |
7ee32cda GM |
6523 | |
6524 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
6525 | to process. */ | |
6526 | ||
6527 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
6528 | if (!NILP (Voverriding_local_map_menu_flag)) | |
6529 | { | |
6530 | /* Yes, use them (if non-nil) as well as the global map. */ | |
6531 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6532 | nmaps = 0; | |
6533 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6534 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6535 | if (!NILP (Voverriding_local_map)) | |
6536 | maps[nmaps++] = Voverriding_local_map; | |
6537 | } | |
6538 | else | |
6539 | { | |
6540 | /* No, so use major and minor mode keymaps. */ | |
6541 | nmaps = current_minor_maps (NULL, &tmaps); | |
6542 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
6543 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
7ee32cda | 6544 | maps[nmaps++] = get_local_map (PT, current_buffer); |
7ee32cda GM |
6545 | } |
6546 | ||
6547 | /* Add global keymap at the end. */ | |
6548 | maps[nmaps++] = current_global_map; | |
6549 | ||
6550 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 6551 | key `tool-bar'. */ |
7ee32cda GM |
6552 | for (i = nmaps - 1; i >= 0; --i) |
6553 | if (!NILP (maps[i])) | |
6554 | { | |
6555 | Lisp_Object keymap; | |
6556 | ||
9ea173e8 | 6557 | keymap = get_keyelt (access_keymap (maps[i], Qtool_bar, 1, 1), 0); |
7ee32cda GM |
6558 | if (!NILP (Fkeymapp (keymap))) |
6559 | { | |
6560 | Lisp_Object tail; | |
6561 | ||
6562 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 6563 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
6564 | { |
6565 | Lisp_Object keydef = XCAR (tail); | |
6566 | if (CONSP (keydef)) | |
9ea173e8 | 6567 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
6568 | } |
6569 | } | |
6570 | } | |
6571 | ||
6572 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
6573 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
6574 | return tool_bar_items_vector; | |
7ee32cda GM |
6575 | } |
6576 | ||
6577 | ||
6578 | /* Process the definition of KEY which is DEF. */ | |
6579 | ||
6580 | static void | |
9ea173e8 | 6581 | process_tool_bar_item (key, def) |
7ee32cda GM |
6582 | Lisp_Object key, def; |
6583 | { | |
6584 | int i; | |
6585 | extern Lisp_Object Qundefined; | |
6586 | struct gcpro gcpro1, gcpro2; | |
6587 | ||
9ea173e8 | 6588 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
6589 | eval. */ |
6590 | GCPRO2 (key, def); | |
6591 | ||
6592 | if (EQ (def, Qundefined)) | |
6593 | { | |
6594 | /* If a map has an explicit `undefined' as definition, | |
6595 | discard any previously made item. */ | |
9ea173e8 | 6596 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 6597 | { |
9ea173e8 | 6598 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 6599 | |
9ea173e8 | 6600 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 6601 | { |
9ea173e8 GM |
6602 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
6603 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
6604 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 6605 | * sizeof (Lisp_Object))); |
9ea173e8 | 6606 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
6607 | break; |
6608 | } | |
6609 | } | |
6610 | } | |
9ea173e8 GM |
6611 | else if (parse_tool_bar_item (key, def)) |
6612 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 6613 | more than one definition for the same key. */ |
9ea173e8 | 6614 | append_tool_bar_item (); |
7ee32cda GM |
6615 | |
6616 | UNGCPRO; | |
6617 | } | |
6618 | ||
6619 | ||
9ea173e8 GM |
6620 | /* Parse a tool bar item specification ITEM for key KEY and return the |
6621 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
6622 | invalid. |
6623 | ||
6624 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
6625 | ||
6626 | CAPTION is the caption of the item, If it's not a string, it is | |
6627 | evaluated to get a string. | |
6628 | ||
9ea173e8 | 6629 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
6630 | as binding are currently ignored. |
6631 | ||
6632 | The following properties are recognized: | |
6633 | ||
6634 | - `:enable FORM'. | |
6635 | ||
9ea173e8 GM |
6636 | FORM is evaluated and specifies whether the tool bar item is |
6637 | enabled or disabled. | |
7ee32cda GM |
6638 | |
6639 | - `:visible FORM' | |
6640 | ||
9ea173e8 | 6641 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
6642 | |
6643 | - `:filter FUNCTION' | |
6644 | ||
6645 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
6646 | result is stored as the new binding. | |
6647 | ||
6648 | - `:button (TYPE SELECTED)' | |
6649 | ||
6650 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
6651 | and specifies whether the button is selected (pressed) or not. | |
6652 | ||
6653 | - `:image IMAGES' | |
6654 | ||
6655 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 6656 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
6657 | |
6658 | - `:help HELP-STRING'. | |
6659 | ||
9ea173e8 | 6660 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
6661 | |
6662 | static int | |
9ea173e8 | 6663 | parse_tool_bar_item (key, item) |
7ee32cda GM |
6664 | Lisp_Object key, item; |
6665 | { | |
9ea173e8 GM |
6666 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
6667 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
6668 | |
6669 | Lisp_Object filter = Qnil; | |
6670 | Lisp_Object caption; | |
6671 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
6672 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
6673 | int i; | |
7ee32cda | 6674 | |
9ea173e8 | 6675 | /* Defininition looks like `(tool-bar-item CAPTION BINDING |
7ee32cda | 6676 | PROPS...)'. Rule out items that aren't lists, don't start with |
9ea173e8 | 6677 | `tool-bar-item' or whose rest following `tool-bar-item' is not a |
7ee32cda GM |
6678 | list. */ |
6679 | if (!CONSP (item) | |
6680 | || !EQ (XCAR (item), Qmenu_item) | |
6681 | || (item = XCDR (item), | |
6682 | !CONSP (item))) | |
6683 | return 0; | |
6684 | ||
9ea173e8 | 6685 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 6686 | defaults. */ |
9ea173e8 | 6687 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 6688 | { |
9ea173e8 | 6689 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
6690 | PROP (i) = Qnil; |
6691 | } | |
6692 | else | |
9ea173e8 GM |
6693 | tool_bar_item_properties |
6694 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
6695 | |
6696 | /* Set defaults. */ | |
9ea173e8 GM |
6697 | PROP (TOOL_BAR_ITEM_KEY) = key; |
6698 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
6699 | |
6700 | /* Get the caption of the item. If the caption is not a string, | |
6701 | evaluate it to get a string. If we don't get a string, skip this | |
6702 | item. */ | |
6703 | caption = XCAR (item); | |
6704 | if (!STRINGP (caption)) | |
6705 | { | |
6706 | caption = menu_item_eval_property (caption); | |
6707 | if (!STRINGP (caption)) | |
6708 | return 0; | |
6709 | } | |
9ea173e8 | 6710 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
6711 | |
6712 | /* Give up if rest following the caption is not a list. */ | |
6713 | item = XCDR (item); | |
6714 | if (!CONSP (item)) | |
6715 | return 0; | |
6716 | ||
6717 | /* Store the binding. */ | |
9ea173e8 | 6718 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
6719 | item = XCDR (item); |
6720 | ||
6721 | /* Process the rest of the properties. */ | |
6722 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
6723 | { | |
6724 | Lisp_Object key, value; | |
6725 | ||
6726 | key = XCAR (item); | |
6727 | value = XCAR (XCDR (item)); | |
6728 | ||
6729 | if (EQ (key, QCenable)) | |
6730 | /* `:enable FORM'. */ | |
9ea173e8 | 6731 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
6732 | else if (EQ (key, QCvisible)) |
6733 | { | |
6734 | /* `:visible FORM'. If got a visible property and that | |
6735 | evaluates to nil then ignore this item. */ | |
6736 | if (NILP (menu_item_eval_property (value))) | |
6737 | return 0; | |
6738 | } | |
6739 | else if (EQ (key, QChelp)) | |
6740 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 6741 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
6742 | else if (EQ (key, QCfilter)) |
6743 | /* ':filter FORM'. */ | |
6744 | filter = value; | |
6745 | else if (EQ (key, QCbutton) && CONSP (value)) | |
6746 | { | |
6747 | /* `:button (TYPE . SELECTED)'. */ | |
6748 | Lisp_Object type, selected; | |
6749 | ||
6750 | type = XCAR (value); | |
6751 | selected = XCDR (value); | |
6752 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
6753 | { | |
9ea173e8 GM |
6754 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
6755 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
6756 | } |
6757 | } | |
6758 | else if (EQ (key, QCimage) | |
6759 | && (CONSP (value) | |
6760 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
6761 | /* Value is either a single image specification or a vector | |
6762 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 6763 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
6764 | } |
6765 | ||
6766 | /* If got a filter apply it on binding. */ | |
6767 | if (!NILP (filter)) | |
9ea173e8 | 6768 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
6769 | = menu_item_eval_property (list2 (filter, |
6770 | list2 (Qquote, | |
9ea173e8 | 6771 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
6772 | |
6773 | /* See if the binding is a keymap. Give up if it is. */ | |
9ea173e8 | 6774 | if (!NILP (get_keymap_1 (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
6775 | return 0; |
6776 | ||
6777 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
6778 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
6779 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
6780 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
6781 | |
6782 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
6783 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
6784 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
6785 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
6786 | |
6787 | return 1; | |
6788 | ||
6789 | #undef PROP | |
6790 | } | |
6791 | ||
6792 | ||
9ea173e8 GM |
6793 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
6794 | that can be reused. */ | |
7ee32cda GM |
6795 | |
6796 | static void | |
9ea173e8 | 6797 | init_tool_bar_items (reuse) |
7ee32cda GM |
6798 | Lisp_Object reuse; |
6799 | { | |
6800 | if (VECTORP (reuse)) | |
9ea173e8 | 6801 | tool_bar_items_vector = reuse; |
7ee32cda | 6802 | else |
9ea173e8 GM |
6803 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
6804 | ntool_bar_items = 0; | |
7ee32cda GM |
6805 | } |
6806 | ||
6807 | ||
9ea173e8 GM |
6808 | /* Append parsed tool bar item properties from |
6809 | tool_bar_item_properties */ | |
7ee32cda GM |
6810 | |
6811 | static void | |
9ea173e8 | 6812 | append_tool_bar_item () |
7ee32cda GM |
6813 | { |
6814 | Lisp_Object *to, *from; | |
6815 | ||
9ea173e8 GM |
6816 | /* Enlarge tool_bar_items_vector if necessary. */ |
6817 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
6818 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
6819 | { |
6820 | Lisp_Object new_vector; | |
9ea173e8 | 6821 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
6822 | |
6823 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 6824 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
6825 | XVECTOR (new_vector)->contents, |
6826 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 6827 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
6828 | } |
6829 | ||
9ea173e8 GM |
6830 | /* Append entries from tool_bar_item_properties to the end of |
6831 | tool_bar_items_vector. */ | |
6832 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
6833 | from = XVECTOR (tool_bar_item_properties)->contents; | |
6834 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
6835 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
6836 | } |
6837 | ||
6838 | ||
6839 | ||
6840 | ||
e8886a1d | 6841 | \f |
dcc408a0 RS |
6842 | /* Read a character using menus based on maps in the array MAPS. |
6843 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
6844 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
6845 | |
6846 | PREV_EVENT is the previous input event, or nil if we are reading | |
6847 | the first event of a key sequence. | |
6848 | ||
83d68044 | 6849 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 6850 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 6851 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
6852 | |
6853 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 6854 | and the strings associated with various map elements. |
8150596a RS |
6855 | |
6856 | This can be done with X menus or with menus put in the minibuf. | |
6857 | These are done in different ways, depending on how the input will be read. | |
6858 | Menus using X are done after auto-saving in read-char, getting the input | |
6859 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
6860 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 6861 | |
7617111f | 6862 | static Lisp_Object |
8150596a | 6863 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
6864 | int nmaps; |
6865 | Lisp_Object *maps; | |
6866 | Lisp_Object prev_event; | |
6867 | int *used_mouse_menu; | |
284f4730 | 6868 | { |
7d6de002 RS |
6869 | int mapno; |
6870 | register Lisp_Object name; | |
7d6de002 | 6871 | |
6569cc8d JB |
6872 | if (used_mouse_menu) |
6873 | *used_mouse_menu = 0; | |
284f4730 JB |
6874 | |
6875 | /* Use local over global Menu maps */ | |
6876 | ||
7d6de002 RS |
6877 | if (! menu_prompting) |
6878 | return Qnil; | |
6879 | ||
03361bcc RS |
6880 | /* Optionally disregard all but the global map. */ |
6881 | if (inhibit_local_menu_bar_menus) | |
6882 | { | |
6883 | maps += (nmaps - 1); | |
6884 | nmaps = 1; | |
6885 | } | |
6886 | ||
7d6de002 RS |
6887 | /* Get the menu name from the first map that has one (a prompt string). */ |
6888 | for (mapno = 0; mapno < nmaps; mapno++) | |
6889 | { | |
6890 | name = map_prompt (maps[mapno]); | |
6891 | if (!NILP (name)) | |
6892 | break; | |
6893 | } | |
284f4730 | 6894 | |
7d6de002 | 6895 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 6896 | if (mapno >= nmaps) |
7d6de002 RS |
6897 | return Qnil; |
6898 | ||
1f5b1641 | 6899 | #ifdef HAVE_MENUS |
7d6de002 RS |
6900 | /* If we got to this point via a mouse click, |
6901 | use a real menu for mouse selection. */ | |
5a8d99e0 | 6902 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
6903 | && !EQ (XCAR (prev_event), Qmenu_bar) |
6904 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
6905 | { |
6906 | /* Display the menu and get the selection. */ | |
6907 | Lisp_Object *realmaps | |
6908 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
6909 | Lisp_Object value; | |
6910 | int nmaps1 = 0; | |
6911 | ||
6912 | /* Use the maps that are not nil. */ | |
6913 | for (mapno = 0; mapno < nmaps; mapno++) | |
6914 | if (!NILP (maps[mapno])) | |
6915 | realmaps[nmaps1++] = maps[mapno]; | |
6916 | ||
6917 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
6918 | if (CONSP (value)) |
6919 | { | |
68f297c5 RS |
6920 | Lisp_Object tem; |
6921 | ||
7539e11f | 6922 | record_menu_key (XCAR (value)); |
8eb4d8ef | 6923 | |
68f297c5 RS |
6924 | /* If we got multiple events, unread all but |
6925 | the first. | |
6926 | There is no way to prevent those unread events | |
6927 | from showing up later in last_nonmenu_event. | |
6928 | So turn symbol and integer events into lists, | |
6929 | to indicate that they came from a mouse menu, | |
6930 | so that when present in last_nonmenu_event | |
6931 | they won't confuse things. */ | |
7539e11f KR |
6932 | for (tem = XCDR (value); !NILP (tem); |
6933 | tem = XCDR (tem)) | |
8eb4d8ef | 6934 | { |
7539e11f KR |
6935 | record_menu_key (XCAR (tem)); |
6936 | if (SYMBOLP (XCAR (tem)) | |
6937 | || INTEGERP (XCAR (tem))) | |
6938 | XCAR (tem) | |
6939 | = Fcons (XCAR (tem), Qnil); | |
8eb4d8ef | 6940 | } |
68f297c5 | 6941 | |
663258f2 JB |
6942 | /* If we got more than one event, put all but the first |
6943 | onto this list to be read later. | |
6944 | Return just the first event now. */ | |
24597608 | 6945 | Vunread_command_events |
7539e11f KR |
6946 | = nconc2 (XCDR (value), Vunread_command_events); |
6947 | value = XCAR (value); | |
663258f2 | 6948 | } |
1c90c381 | 6949 | else if (NILP (value)) |
dcc408a0 | 6950 | value = Qt; |
6569cc8d JB |
6951 | if (used_mouse_menu) |
6952 | *used_mouse_menu = 1; | |
7d6de002 RS |
6953 | return value; |
6954 | } | |
1f5b1641 | 6955 | #endif /* HAVE_MENUS */ |
8150596a RS |
6956 | return Qnil ; |
6957 | } | |
6958 | ||
68e0de82 RS |
6959 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
6960 | We make this bigger when necessary, and never free it. */ | |
6961 | static char *read_char_minibuf_menu_text; | |
6962 | /* Size of that buffer. */ | |
6963 | static int read_char_minibuf_menu_width; | |
6964 | ||
8150596a | 6965 | static Lisp_Object |
24597608 | 6966 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
6967 | int commandflag ; |
6968 | int nmaps; | |
6969 | Lisp_Object *maps; | |
6970 | { | |
6971 | int mapno; | |
6972 | register Lisp_Object name; | |
6973 | int nlength; | |
788f89eb | 6974 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 6975 | int idx = -1; |
9fdbfdf8 | 6976 | int nobindings = 1; |
8150596a | 6977 | Lisp_Object rest, vector; |
68e0de82 | 6978 | char *menu; |
8150596a RS |
6979 | |
6980 | if (! menu_prompting) | |
6981 | return Qnil; | |
6982 | ||
68e0de82 RS |
6983 | /* Make sure we have a big enough buffer for the menu text. */ |
6984 | if (read_char_minibuf_menu_text == 0) | |
6985 | { | |
6986 | read_char_minibuf_menu_width = width + 4; | |
6987 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
6988 | } | |
6989 | else if (width + 4 > read_char_minibuf_menu_width) | |
6990 | { | |
6991 | read_char_minibuf_menu_width = width + 4; | |
6992 | read_char_minibuf_menu_text | |
6993 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
6994 | } | |
6995 | menu = read_char_minibuf_menu_text; | |
6996 | ||
8150596a RS |
6997 | /* Get the menu name from the first map that has one (a prompt string). */ |
6998 | for (mapno = 0; mapno < nmaps; mapno++) | |
6999 | { | |
7000 | name = map_prompt (maps[mapno]); | |
7001 | if (!NILP (name)) | |
7002 | break; | |
7003 | } | |
7004 | ||
7005 | /* If we don't have any menus, just read a character normally. */ | |
7006 | if (mapno >= nmaps) | |
7007 | return Qnil; | |
284f4730 JB |
7008 | |
7009 | /* Prompt string always starts with map's prompt, and a space. */ | |
7010 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 7011 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 7012 | menu[nlength++] = ':'; |
284f4730 JB |
7013 | menu[nlength++] = ' '; |
7014 | menu[nlength] = 0; | |
7015 | ||
7d6de002 RS |
7016 | /* Start prompting at start of first map. */ |
7017 | mapno = 0; | |
7018 | rest = maps[mapno]; | |
284f4730 JB |
7019 | |
7020 | /* Present the documented bindings, a line at a time. */ | |
7021 | while (1) | |
7022 | { | |
7023 | int notfirst = 0; | |
7024 | int i = nlength; | |
7025 | Lisp_Object obj; | |
7026 | int ch; | |
8066f1a1 | 7027 | Lisp_Object orig_defn_macro; |
284f4730 | 7028 | |
284f4730 | 7029 | /* Loop over elements of map. */ |
7d6de002 | 7030 | while (i < width) |
284f4730 | 7031 | { |
fd3613d7 | 7032 | Lisp_Object elt; |
284f4730 | 7033 | |
7d6de002 RS |
7034 | /* If reached end of map, start at beginning of next map. */ |
7035 | if (NILP (rest)) | |
7036 | { | |
7037 | mapno++; | |
7038 | /* At end of last map, wrap around to first map if just starting, | |
7039 | or end this line if already have something on it. */ | |
7040 | if (mapno == nmaps) | |
284f4730 | 7041 | { |
8150596a | 7042 | mapno = 0; |
40932d1a | 7043 | if (notfirst || nobindings) break; |
284f4730 | 7044 | } |
7d6de002 | 7045 | rest = maps[mapno]; |
284f4730 | 7046 | } |
7d6de002 RS |
7047 | |
7048 | /* Look at the next element of the map. */ | |
7049 | if (idx >= 0) | |
7050 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 7051 | else |
7d6de002 RS |
7052 | elt = Fcar_safe (rest); |
7053 | ||
8c18cbfb | 7054 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7055 | { |
7d6de002 RS |
7056 | /* If we found a dense table in the keymap, |
7057 | advanced past it, but start scanning its contents. */ | |
7058 | rest = Fcdr_safe (rest); | |
7059 | vector = elt; | |
7060 | idx = 0; | |
284f4730 | 7061 | } |
7d6de002 RS |
7062 | else |
7063 | { | |
7064 | /* An ordinary element. */ | |
fd3613d7 | 7065 | Lisp_Object event, tem; |
0a2ea221 KH |
7066 | |
7067 | if (idx < 0) | |
7068 | { | |
fd3613d7 RS |
7069 | event = Fcar_safe (elt); /* alist */ |
7070 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7071 | } |
8150596a | 7072 | else |
7d6de002 | 7073 | { |
fd3613d7 | 7074 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7075 | } |
7076 | ||
7077 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7078 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7079 | { |
7080 | /* 1 if the char to type matches the string. */ | |
7081 | int char_matches; | |
7082 | Lisp_Object upcased_event, downcased_event; | |
7083 | Lisp_Object desc; | |
fd3613d7 RS |
7084 | Lisp_Object s |
7085 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7086 | |
7087 | upcased_event = Fupcase (event); | |
7088 | downcased_event = Fdowncase (event); | |
7089 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7090 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7091 | if (! char_matches) | |
7092 | desc = Fsingle_key_description (event); | |
7093 | ||
fd3613d7 RS |
7094 | tem |
7095 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7096 | if (!NILP (tem)) | |
7097 | /* Insert equivalent keybinding. */ | |
7098 | s = concat2 (s, tem); | |
7099 | ||
7100 | tem | |
7101 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7102 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7103 | { | |
7104 | /* Insert button prefix. */ | |
7105 | Lisp_Object selected | |
7106 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7107 | if (EQ (tem, QCradio)) | |
7108 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7109 | else | |
7110 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7111 | s = concat2 (tem, s); | |
7112 | } | |
7113 | ||
7114 | ||
0a2ea221 KH |
7115 | /* If we have room for the prompt string, add it to this line. |
7116 | If this is the first on the line, always add it. */ | |
7117 | if ((XSTRING (s)->size + i + 2 | |
7118 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7119 | < width | |
7120 | || !notfirst) | |
7121 | { | |
7122 | int thiswidth; | |
7123 | ||
7124 | /* Punctuate between strings. */ | |
7125 | if (notfirst) | |
7126 | { | |
7127 | strcpy (menu + i, ", "); | |
7128 | i += 2; | |
7129 | } | |
7130 | notfirst = 1; | |
7131 | nobindings = 0 ; | |
284f4730 | 7132 | |
0a2ea221 KH |
7133 | /* If the char to type doesn't match the string's |
7134 | first char, explicitly show what char to type. */ | |
7135 | if (! char_matches) | |
7136 | { | |
7137 | /* Add as much of string as fits. */ | |
7138 | thiswidth = XSTRING (desc)->size; | |
7139 | if (thiswidth + i > width) | |
7140 | thiswidth = width - i; | |
7141 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7142 | i += thiswidth; | |
7143 | strcpy (menu + i, " = "); | |
7144 | i += 3; | |
7145 | } | |
7146 | ||
7147 | /* Add as much of string as fits. */ | |
7148 | thiswidth = XSTRING (s)->size; | |
7149 | if (thiswidth + i > width) | |
7150 | thiswidth = width - i; | |
7151 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7152 | i += thiswidth; | |
7153 | menu[i] = 0; | |
7154 | } | |
7155 | else | |
7d6de002 | 7156 | { |
0a2ea221 KH |
7157 | /* If this element does not fit, end the line now, |
7158 | and save the element for the next line. */ | |
7159 | strcpy (menu + i, "..."); | |
7160 | break; | |
7d6de002 | 7161 | } |
7d6de002 RS |
7162 | } |
7163 | ||
7164 | /* Move past this element. */ | |
8150596a | 7165 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7166 | /* Handle reaching end of dense table. */ |
7167 | idx = -1; | |
7168 | if (idx >= 0) | |
7169 | idx++; | |
7170 | else | |
7171 | rest = Fcdr_safe (rest); | |
7172 | } | |
284f4730 JB |
7173 | } |
7174 | ||
7175 | /* Prompt with that and read response. */ | |
301738ed RS |
7176 | message2_nolog (menu, strlen (menu), |
7177 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7178 | |
df0f2ba1 | 7179 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7180 | is pressed. Help characters are not recorded because menu prompting |
7181 | is not used on replay. | |
7182 | */ | |
c5fdd383 KH |
7183 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7184 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
7185 | do |
7186 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 7187 | while (BUFFERP (obj)); |
c5fdd383 | 7188 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7189 | |
8c18cbfb | 7190 | if (!INTEGERP (obj)) |
284f4730 JB |
7191 | return obj; |
7192 | else | |
7193 | ch = XINT (obj); | |
7194 | ||
f4255cd1 | 7195 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7196 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7197 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7198 | { |
c5fdd383 | 7199 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7200 | store_kbd_macro_char (obj); |
8150596a RS |
7201 | return obj; |
7202 | } | |
7203 | /* Help char - go round again */ | |
284f4730 JB |
7204 | } |
7205 | } | |
284f4730 JB |
7206 | \f |
7207 | /* Reading key sequences. */ | |
7208 | ||
7209 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7210 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7211 | keymap, or nil otherwise. Return the index of the first keymap in | |
7212 | which KEY has any binding, or NMAPS if no map has a binding. | |
7213 | ||
7214 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7215 | followed by the corresponding non-meta character. Keymaps in | |
7216 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7217 | NEXT. | |
7218 | ||
88cb0656 JB |
7219 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7220 | unmodified. | |
7221 | ||
569871d2 | 7222 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7223 | |
7224 | static int | |
4e50f26a | 7225 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7226 | Lisp_Object key; |
7227 | Lisp_Object *current, *defs, *next; | |
7228 | int nmaps; | |
7229 | { | |
7230 | int i, first_binding; | |
569871d2 | 7231 | int did_meta = 0; |
284f4730 JB |
7232 | |
7233 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
7234 | followed by the corresponding non-meta character. |
7235 | Put the results into DEFS, since we are going to alter that anyway. | |
7236 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 7237 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
7238 | { |
7239 | for (i = 0; i < nmaps; i++) | |
7240 | if (! NILP (current[i])) | |
7241 | { | |
569871d2 RS |
7242 | Lisp_Object def; |
7243 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 7244 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
7245 | |
7246 | /* Note that since we pass the resulting bindings through | |
7247 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
7248 | disappear. */ | |
569871d2 | 7249 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
7250 | } |
7251 | else | |
569871d2 | 7252 | defs[i] = Qnil; |
284f4730 | 7253 | |
569871d2 | 7254 | did_meta = 1; |
18cd2eeb | 7255 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
7256 | } |
7257 | ||
7258 | first_binding = nmaps; | |
7259 | for (i = nmaps - 1; i >= 0; i--) | |
7260 | { | |
7261 | if (! NILP (current[i])) | |
7262 | { | |
569871d2 RS |
7263 | Lisp_Object map; |
7264 | if (did_meta) | |
7265 | map = defs[i]; | |
7266 | else | |
7267 | map = current[i]; | |
7268 | ||
c6a67acd | 7269 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
7270 | if (! NILP (defs[i])) |
7271 | first_binding = i; | |
7272 | } | |
7273 | else | |
7274 | defs[i] = Qnil; | |
7275 | } | |
7276 | ||
284f4730 | 7277 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7278 | if (first_binding < nmaps) |
7279 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 7280 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
7281 | |
7282 | return first_binding; | |
7283 | } | |
7284 | ||
df0f2ba1 | 7285 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7286 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7287 | Prompt with PROMPT. | |
284f4730 | 7288 | Return the length of the key sequence stored. |
dcc408a0 | 7289 | Return -1 if the user rejected a command menu. |
284f4730 | 7290 | |
f4255cd1 JB |
7291 | Echo starting immediately unless `prompt' is 0. |
7292 | ||
7293 | Where a key sequence ends depends on the currently active keymaps. | |
7294 | These include any minor mode keymaps active in the current buffer, | |
7295 | the current buffer's local map, and the global map. | |
7296 | ||
7297 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7298 | to see if some trailing subsequence might be the beginning of a | |
7299 | function key's sequence. If so, we try to read the whole function | |
7300 | key, and substitute its symbolic name into the key sequence. | |
7301 | ||
fbcd35bd JB |
7302 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7303 | `double-' events into similar click events, if that would make them | |
7304 | bound. We try to turn `triple-' events first into `double-' events, | |
7305 | then into clicks. | |
f4255cd1 JB |
7306 | |
7307 | If we get a mouse click in a mode line, vertical divider, or other | |
7308 | non-text area, we treat the click as if it were prefixed by the | |
7309 | symbol denoting that area - `mode-line', `vertical-line', or | |
7310 | whatever. | |
7311 | ||
7312 | If the sequence starts with a mouse click, we read the key sequence | |
7313 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7314 | |
f4255cd1 JB |
7315 | If the user switches frames in the midst of a key sequence, we put |
7316 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7317 | read_char will return it. |
7318 | ||
7319 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7320 | from the selected window's buffer. */ | |
48e416d4 | 7321 | |
284f4730 | 7322 | static int |
ce98e608 | 7323 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7324 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7325 | Lisp_Object *keybuf; |
7326 | int bufsize; | |
84d91fda | 7327 | Lisp_Object prompt; |
309b0fc8 | 7328 | int dont_downcase_last; |
ce98e608 | 7329 | int can_return_switch_frame; |
f571ae0d | 7330 | int fix_current_buffer; |
284f4730 | 7331 | { |
f4255cd1 JB |
7332 | int count = specpdl_ptr - specpdl; |
7333 | ||
284f4730 JB |
7334 | /* How many keys there are in the current key sequence. */ |
7335 | int t; | |
7336 | ||
284f4730 JB |
7337 | /* The length of the echo buffer when we started reading, and |
7338 | the length of this_command_keys when we started reading. */ | |
7339 | int echo_start; | |
f4255cd1 | 7340 | int keys_start; |
284f4730 JB |
7341 | |
7342 | /* The number of keymaps we're scanning right now, and the number of | |
7343 | keymaps we have allocated space for. */ | |
7344 | int nmaps; | |
7345 | int nmaps_allocated = 0; | |
7346 | ||
284f4730 JB |
7347 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7348 | the current keymaps. */ | |
7349 | Lisp_Object *defs; | |
7350 | ||
f4255cd1 JB |
7351 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7352 | in the current keymaps, or nil where it is not a prefix. */ | |
7353 | Lisp_Object *submaps; | |
7354 | ||
e0dff5f6 RS |
7355 | /* The local map to start out with at start of key sequence. */ |
7356 | Lisp_Object orig_local_map; | |
7357 | ||
7358 | /* 1 if we have already considered switching to the local-map property | |
7359 | of the place where a mouse click occurred. */ | |
7360 | int localized_local_map = 0; | |
7361 | ||
f4255cd1 JB |
7362 | /* The index in defs[] of the first keymap that has a binding for |
7363 | this key sequence. In other words, the lowest i such that | |
7364 | defs[i] is non-nil. */ | |
284f4730 JB |
7365 | int first_binding; |
7366 | ||
f4255cd1 | 7367 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7368 | input key. |
7369 | ||
7370 | We use this to recover after recognizing a function key. Once we | |
7371 | realize that a suffix of the current key sequence is actually a | |
7372 | function key's escape sequence, we replace the suffix with the | |
7373 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7374 | contains a new and different key sequence, so the echo area, |
7375 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7376 | this situation, we set mock_input to t, set t to 0, and jump to | |
7377 | restart_sequence; the loop will read keys from keybuf up until | |
7378 | mock_input, thus rebuilding the state; and then it will resume | |
7379 | reading characters from the keyboard. */ | |
284f4730 JB |
7380 | int mock_input = 0; |
7381 | ||
253598e4 | 7382 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7383 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7384 | and fkey_map is its binding. | |
253598e4 | 7385 | |
f4255cd1 JB |
7386 | These might be > t, indicating that all function key scanning |
7387 | should hold off until t reaches them. We do this when we've just | |
7388 | recognized a function key, to avoid searching for the function | |
7389 | key's again in Vfunction_key_map. */ | |
284f4730 | 7390 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 7391 | Lisp_Object fkey_map; |
284f4730 | 7392 | |
a612e298 RS |
7393 | /* Likewise, for key_translation_map. */ |
7394 | int keytran_start = 0, keytran_end = 0; | |
7395 | Lisp_Object keytran_map; | |
7396 | ||
cd21b839 JB |
7397 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7398 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 7399 | Lisp_Object delayed_switch_frame; |
cd21b839 | 7400 | |
51763820 BF |
7401 | /* See the comment below... */ |
7402 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7403 | Lisp_Object first_event; |
51763820 | 7404 | #endif |
4efda7dd | 7405 | |
309b0fc8 RS |
7406 | Lisp_Object original_uppercase; |
7407 | int original_uppercase_position = -1; | |
7408 | ||
bc536d84 | 7409 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7410 | int dummyflag = 0; |
bc536d84 | 7411 | |
3b9189f8 RS |
7412 | struct buffer *starting_buffer; |
7413 | ||
e9bf89a0 RS |
7414 | /* Nonzero if we seem to have got the beginning of a binding |
7415 | in function_key_map. */ | |
7416 | int function_key_possible = 0; | |
00a78037 | 7417 | int key_translation_possible = 0; |
e9bf89a0 | 7418 | |
3fe8e9a2 RS |
7419 | /* Save the status of key translation before each step, |
7420 | so that we can restore this after downcasing. */ | |
7421 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7422 | int prev_fkey_start; |
7423 | int prev_fkey_end; | |
3fe8e9a2 RS |
7424 | |
7425 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7426 | int prev_keytran_start; |
7427 | int prev_keytran_end; | |
3fe8e9a2 | 7428 | |
03cee6ae | 7429 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 7430 | int junk; |
03cee6ae | 7431 | #endif |
4efda7dd | 7432 | |
7d18f9ae RS |
7433 | raw_keybuf_count = 0; |
7434 | ||
4efda7dd RS |
7435 | last_nonmenu_event = Qnil; |
7436 | ||
7437 | delayed_switch_frame = Qnil; | |
7438 | fkey_map = Vfunction_key_map; | |
a612e298 | 7439 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7440 | |
a612e298 | 7441 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
7442 | if (NILP (Fkeymapp (Vfunction_key_map))) |
7443 | fkey_start = fkey_end = bufsize + 1; | |
7444 | ||
a612e298 RS |
7445 | /* If there is no key-translation-map, turn off scanning. */ |
7446 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
7447 | keytran_start = keytran_end = bufsize + 1; | |
7448 | ||
284f4730 JB |
7449 | if (INTERACTIVE) |
7450 | { | |
84d91fda RS |
7451 | if (!NILP (prompt)) |
7452 | echo_prompt (XSTRING (prompt)->data); | |
f2647d04 DL |
7453 | else if (cursor_in_echo_area |
7454 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
7455 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
7456 | /* This doesn't put in a dash if the echo buffer is empty, so |
7457 | you don't always see a dash hanging out in the minibuffer. */ | |
7458 | echo_dash (); | |
284f4730 JB |
7459 | } |
7460 | ||
f4255cd1 JB |
7461 | /* Record the initial state of the echo area and this_command_keys; |
7462 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 7463 | if (INTERACTIVE) |
df0f2ba1 | 7464 | echo_start = echo_length (); |
f4255cd1 | 7465 | keys_start = this_command_key_count; |
6321824f | 7466 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 7467 | |
51763820 BF |
7468 | #if defined (GOBBLE_FIRST_EVENT) |
7469 | /* This doesn't quite work, because some of the things that read_char | |
7470 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 7471 | this work right. */ |
51763820 | 7472 | |
4efda7dd RS |
7473 | /* Read the first char of the sequence specially, before setting |
7474 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 7475 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 7476 | &junk); |
51763820 | 7477 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 7478 | |
e0dff5f6 RS |
7479 | orig_local_map = get_local_map (PT, current_buffer); |
7480 | ||
7b4aedb9 JB |
7481 | /* We jump here when the key sequence has been thoroughly changed, and |
7482 | we need to rescan it starting from the beginning. When we jump here, | |
7483 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 7484 | replay_sequence: |
7b4aedb9 | 7485 | |
3b9189f8 | 7486 | starting_buffer = current_buffer; |
e9bf89a0 | 7487 | function_key_possible = 0; |
00a78037 | 7488 | key_translation_possible = 0; |
3b9189f8 | 7489 | |
f4255cd1 | 7490 | /* Build our list of keymaps. |
07d2b8de JB |
7491 | If we recognize a function key and replace its escape sequence in |
7492 | keybuf with its symbol, or if the sequence starts with a mouse | |
7493 | click and we need to switch buffers, we jump back here to rebuild | |
7494 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7495 | { |
284f4730 JB |
7496 | Lisp_Object *maps; |
7497 | ||
217258d5 KH |
7498 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
7499 | || !NILP (Voverriding_local_map)) | |
284f4730 | 7500 | { |
217258d5 | 7501 | if (3 > nmaps_allocated) |
9dd3131c | 7502 | { |
217258d5 KH |
7503 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
7504 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
7505 | nmaps_allocated = 3; | |
9dd3131c | 7506 | } |
217258d5 KH |
7507 | nmaps = 0; |
7508 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7509 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7510 | if (!NILP (Voverriding_local_map)) | |
7511 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 7512 | } |
9dd3131c RS |
7513 | else |
7514 | { | |
217258d5 KH |
7515 | nmaps = current_minor_maps (0, &maps); |
7516 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 7517 | { |
217258d5 KH |
7518 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
7519 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
7520 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 7521 | } |
217258d5 | 7522 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
217258d5 | 7523 | submaps[nmaps++] = orig_local_map; |
9dd3131c | 7524 | } |
217258d5 | 7525 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
7526 | } |
7527 | ||
7528 | /* Find an accurate initial value for first_binding. */ | |
7529 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 7530 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
7531 | break; |
7532 | ||
3b9189f8 | 7533 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
7534 | t = 0; |
7535 | ||
7536 | /* These are no-ops the first time through, but if we restart, they | |
7537 | revert the echo area and this_command_keys to their original state. */ | |
7538 | this_command_key_count = keys_start; | |
df0f2ba1 | 7539 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
7540 | echo_truncate (echo_start); |
7541 | ||
cca310da JB |
7542 | /* If the best binding for the current key sequence is a keymap, or |
7543 | we may be looking at a function key's escape sequence, keep on | |
7544 | reading. */ | |
253598e4 | 7545 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
7546 | || (first_binding >= nmaps |
7547 | && fkey_start < t | |
7548 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 7549 | && mock_input <= fkey_start) |
0d882d52 KH |
7550 | || (first_binding >= nmaps |
7551 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
7552 | /* Don't return in the middle of a possible function key sequence, |
7553 | if the only bindings we found were via case conversion. | |
7554 | Thus, if ESC O a has a function-key-map translation | |
7555 | and ESC o has a binding, don't return after ESC O, | |
7556 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 7557 | ) |
284f4730 JB |
7558 | { |
7559 | Lisp_Object key; | |
7d6de002 | 7560 | int used_mouse_menu = 0; |
284f4730 | 7561 | |
7b4aedb9 JB |
7562 | /* Where the last real key started. If we need to throw away a |
7563 | key that has expanded into more than one element of keybuf | |
7564 | (say, a mouse click on the mode line which is being treated | |
7565 | as [mode-line (mouse-...)], then we backtrack to this point | |
7566 | of keybuf. */ | |
7567 | int last_real_key_start; | |
7568 | ||
0a7f1fc0 JB |
7569 | /* These variables are analogous to echo_start and keys_start; |
7570 | while those allow us to restart the entire key sequence, | |
7571 | echo_local_start and keys_local_start allow us to throw away | |
7572 | just one key. */ | |
f4255cd1 JB |
7573 | int echo_local_start, keys_local_start, local_first_binding; |
7574 | ||
284f4730 | 7575 | if (t >= bufsize) |
3fe8e9a2 | 7576 | error ("Key sequence too long"); |
284f4730 | 7577 | |
f4255cd1 JB |
7578 | if (INTERACTIVE) |
7579 | echo_local_start = echo_length (); | |
7580 | keys_local_start = this_command_key_count; | |
7581 | local_first_binding = first_binding; | |
df0f2ba1 | 7582 | |
f4255cd1 | 7583 | replay_key: |
0a7f1fc0 | 7584 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
7585 | jumped back up to replay_key; in that case, these restore the |
7586 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 7587 | loop. */ |
40932d1a | 7588 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 7589 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
7590 | this_command_key_count = keys_local_start; |
7591 | first_binding = local_first_binding; | |
7592 | ||
7e85b935 RS |
7593 | /* By default, assume each event is "real". */ |
7594 | last_real_key_start = t; | |
7595 | ||
f4255cd1 | 7596 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
7597 | if (t < mock_input) |
7598 | { | |
7599 | key = keybuf[t]; | |
7600 | add_command_key (key); | |
f2647d04 DL |
7601 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
7602 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 7603 | echo_char (key); |
284f4730 | 7604 | } |
253598e4 JB |
7605 | |
7606 | /* If not, we should actually read a character. */ | |
284f4730 JB |
7607 | else |
7608 | { | |
beecf6a1 | 7609 | { |
c5fdd383 KH |
7610 | #ifdef MULTI_KBOARD |
7611 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 7612 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 7613 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 7614 | { |
5798cf15 KH |
7615 | if (!NILP (delayed_switch_frame)) |
7616 | { | |
c5fdd383 | 7617 | interrupted_kboard->kbd_queue |
5798cf15 | 7618 | = Fcons (delayed_switch_frame, |
c5fdd383 | 7619 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
7620 | delayed_switch_frame = Qnil; |
7621 | } | |
beecf6a1 | 7622 | while (t > 0) |
c5fdd383 KH |
7623 | interrupted_kboard->kbd_queue |
7624 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
7625 | |
7626 | /* If the side queue is non-empty, ensure it begins with a | |
7627 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 7628 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 7629 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
7630 | !(EVENT_HAS_PARAMETERS (key) |
7631 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
7632 | Qswitch_frame)))) | |
df0f2ba1 KH |
7633 | { |
7634 | Lisp_Object frame; | |
7635 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 7636 | interrupted_kboard->kbd_queue |
df0f2ba1 | 7637 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 7638 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 7639 | } |
beecf6a1 | 7640 | mock_input = 0; |
a6e0153c | 7641 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
7642 | goto replay_sequence; |
7643 | } | |
bded54dd | 7644 | #endif |
beecf6a1 KH |
7645 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
7646 | &used_mouse_menu); | |
7647 | } | |
284f4730 | 7648 | |
dcc408a0 RS |
7649 | /* read_char returns t when it shows a menu and the user rejects it. |
7650 | Just return -1. */ | |
7651 | if (EQ (key, Qt)) | |
7d18f9ae RS |
7652 | { |
7653 | unbind_to (count, Qnil); | |
7654 | return -1; | |
7655 | } | |
dcc408a0 | 7656 | |
f4255cd1 | 7657 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
7658 | Emacs 18 handles this by returning immediately with a |
7659 | zero, so that's what we'll do. */ | |
8c18cbfb | 7660 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 7661 | { |
f4255cd1 | 7662 | t = 0; |
bc536d84 RS |
7663 | /* The Microsoft C compiler can't handle the goto that |
7664 | would go here. */ | |
309b0fc8 | 7665 | dummyflag = 1; |
bc536d84 | 7666 | break; |
cd21b839 | 7667 | } |
df0f2ba1 | 7668 | |
3cb81011 KH |
7669 | /* If the current buffer has been changed from under us, the |
7670 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 7671 | if (BUFFERP (key)) |
3cb81011 KH |
7672 | { |
7673 | mock_input = t; | |
f571ae0d RS |
7674 | /* Reset the current buffer from the selected window |
7675 | in case something changed the former and not the latter. | |
7676 | This is to be more consistent with the behavior | |
7677 | of the command_loop_1. */ | |
7678 | if (fix_current_buffer) | |
a94a4335 | 7679 | { |
788f89eb | 7680 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
7681 | Fkill_emacs (Qnil); |
7682 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
7683 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
7684 | } | |
f571ae0d | 7685 | |
a6e0153c | 7686 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
7687 | goto replay_sequence; |
7688 | } | |
7689 | ||
3b9189f8 RS |
7690 | /* If we have a quit that was typed in another frame, and |
7691 | quit_throw_to_read_char switched buffers, | |
7692 | replay to get the right keymap. */ | |
9343ab07 | 7693 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 | 7694 | { |
7d18f9ae RS |
7695 | GROW_RAW_KEYBUF; |
7696 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
7697 | keybuf[t++] = key; |
7698 | mock_input = t; | |
7699 | Vquit_flag = Qnil; | |
a6e0153c | 7700 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
7701 | goto replay_sequence; |
7702 | } | |
3cb81011 | 7703 | |
284f4730 | 7704 | Vquit_flag = Qnil; |
7d18f9ae RS |
7705 | |
7706 | if (EVENT_HAS_PARAMETERS (key) | |
7707 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
7708 | { | |
7709 | /* If we're at the beginning of a key sequence, and the caller | |
7710 | says it's okay, go ahead and return this event. If we're | |
7711 | in the midst of a key sequence, delay it until the end. */ | |
7712 | if (t > 0 || !can_return_switch_frame) | |
7713 | { | |
7714 | delayed_switch_frame = key; | |
7715 | goto replay_key; | |
7716 | } | |
7717 | } | |
7718 | ||
7719 | GROW_RAW_KEYBUF; | |
7720 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 7721 | } |
284f4730 | 7722 | |
df0f2ba1 | 7723 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
7724 | in their CHAR-ADDRESS field. For example, a click on |
7725 | the mode line is prefixed by the symbol `mode-line'. | |
7726 | ||
7727 | Furthermore, key sequences beginning with mouse clicks | |
7728 | are read using the keymaps of the buffer clicked on, not | |
7729 | the current buffer. So we may have to switch the buffer | |
7730 | here. | |
7731 | ||
7732 | When we turn one event into two events, we must make sure | |
7733 | that neither of the two looks like the original--so that, | |
7734 | if we replay the events, they won't be expanded again. | |
7735 | If not for this, such reexpansion could happen either here | |
7736 | or when user programs play with this-command-keys. */ | |
7737 | if (EVENT_HAS_PARAMETERS (key)) | |
7738 | { | |
9b8eb840 | 7739 | Lisp_Object kind; |
cca310da | 7740 | |
9b8eb840 | 7741 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 7742 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 7743 | { |
9b8eb840 | 7744 | Lisp_Object window, posn; |
f4255cd1 | 7745 | |
9b8eb840 KH |
7746 | window = POSN_WINDOW (EVENT_START (key)); |
7747 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 7748 | |
8c18cbfb | 7749 | if (CONSP (posn)) |
0a7f1fc0 | 7750 | { |
7e85b935 RS |
7751 | /* We're looking at the second event of a |
7752 | sequence which we expanded before. Set | |
7753 | last_real_key_start appropriately. */ | |
7754 | if (t > 0) | |
7755 | last_real_key_start = t - 1; | |
cd21b839 | 7756 | } |
7e85b935 RS |
7757 | |
7758 | /* Key sequences beginning with mouse clicks are | |
7759 | read using the keymaps in the buffer clicked on, | |
7760 | not the current buffer. If we're at the | |
7761 | beginning of a key sequence, switch buffers. */ | |
7762 | if (last_real_key_start == 0 | |
8c18cbfb KH |
7763 | && WINDOWP (window) |
7764 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 7765 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 7766 | { |
7d18f9ae | 7767 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
7768 | keybuf[t] = key; |
7769 | mock_input = t + 1; | |
7770 | ||
7771 | /* Arrange to go back to the original buffer once we're | |
7772 | done reading the key sequence. Note that we can't | |
7773 | use save_excursion_{save,restore} here, because they | |
7774 | save point as well as the current buffer; we don't | |
7775 | want to save point, because redisplay may change it, | |
7776 | to accommodate a Fset_window_start or something. We | |
7777 | don't want to do this at the top of the function, | |
7778 | because we may get input from a subprocess which | |
7779 | wants to change the selected window and stuff (say, | |
7780 | emacsclient). */ | |
7781 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
7782 | ||
788f89eb | 7783 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 7784 | Fkill_emacs (Qnil); |
7e85b935 | 7785 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
e0dff5f6 | 7786 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 7787 | goto replay_sequence; |
0a7f1fc0 | 7788 | } |
7ee32cda | 7789 | |
e0dff5f6 RS |
7790 | /* For a mouse click, get the local text-property keymap |
7791 | of the place clicked on, rather than point. */ | |
7ee32cda | 7792 | if (last_real_key_start == 0 |
7539e11f | 7793 | && CONSP (XCDR (key)) |
e0dff5f6 | 7794 | && ! localized_local_map) |
5ec75a55 | 7795 | { |
e0dff5f6 RS |
7796 | Lisp_Object map_here, start, pos; |
7797 | ||
7798 | localized_local_map = 1; | |
7799 | start = EVENT_START (key); | |
7ee32cda | 7800 | |
7539e11f | 7801 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
7802 | { |
7803 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
7804 | if (INTEGERP (pos) |
7805 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
7806 | { |
7807 | map_here = get_local_map (XINT (pos), current_buffer); | |
7808 | if (!EQ (map_here, orig_local_map)) | |
7809 | { | |
7810 | orig_local_map = map_here; | |
7811 | keybuf[t] = key; | |
7812 | mock_input = t + 1; | |
5ec75a55 | 7813 | |
e0dff5f6 RS |
7814 | goto replay_sequence; |
7815 | } | |
7816 | } | |
7817 | } | |
7818 | } | |
7819 | ||
7820 | /* Expand mode-line and scroll-bar events into two events: | |
7821 | use posn as a fake prefix key. */ | |
7822 | if (SYMBOLP (posn)) | |
7823 | { | |
7e85b935 | 7824 | if (t + 1 >= bufsize) |
3fe8e9a2 | 7825 | error ("Key sequence too long"); |
7e85b935 RS |
7826 | keybuf[t] = posn; |
7827 | keybuf[t+1] = key; | |
7828 | mock_input = t + 2; | |
7ee32cda | 7829 | |
7e85b935 RS |
7830 | /* Zap the position in key, so we know that we've |
7831 | expanded it, and don't try to do so again. */ | |
7832 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7833 | = Fcons (posn, Qnil); | |
7ee32cda GM |
7834 | |
7835 | /* If on a mode line string with a local keymap, | |
7836 | reconsider the key sequence with that keymap. */ | |
7837 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
7838 | { | |
7839 | Lisp_Object string, pos, map; | |
7840 | ||
7841 | string = POSN_STRING (EVENT_START (key)); | |
7842 | pos = XCDR (string); | |
7843 | string = XCAR (string); | |
7844 | ||
7845 | if (pos >= 0 | |
7846 | && pos < XSTRING (string)->size | |
7847 | && (map = Fget_text_property (pos, Qlocal_map, | |
7848 | string), | |
7849 | !NILP (map))) | |
7850 | { | |
7851 | orig_local_map = map; | |
7852 | goto replay_sequence; | |
7853 | } | |
7854 | } | |
7855 | ||
7e85b935 | 7856 | goto replay_key; |
5ec75a55 | 7857 | } |
0a7f1fc0 | 7858 | } |
7539e11f | 7859 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 7860 | && CONSP (EVENT_START (key)) |
7539e11f | 7861 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 7862 | { |
9b8eb840 | 7863 | Lisp_Object posn; |
7e85b935 | 7864 | |
9b8eb840 | 7865 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
7866 | /* Handle menu-bar events: |
7867 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 7868 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
7869 | { |
7870 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 7871 | error ("Key sequence too long"); |
7e85b935 RS |
7872 | keybuf[t] = posn; |
7873 | keybuf[t+1] = key; | |
7874 | ||
7875 | /* Zap the position in key, so we know that we've | |
7876 | expanded it, and don't try to do so again. */ | |
7877 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7878 | = Fcons (posn, Qnil); | |
7879 | ||
7880 | mock_input = t + 2; | |
7881 | goto replay_sequence; | |
7882 | } | |
8c18cbfb | 7883 | else if (CONSP (posn)) |
7e85b935 RS |
7884 | { |
7885 | /* We're looking at the second event of a | |
7886 | sequence which we expanded before. Set | |
7887 | last_real_key_start appropriately. */ | |
7888 | if (last_real_key_start == t && t > 0) | |
7889 | last_real_key_start = t - 1; | |
7890 | } | |
a6d53864 | 7891 | } |
284f4730 | 7892 | } |
f4255cd1 JB |
7893 | |
7894 | /* We have finally decided that KEY is something we might want | |
7895 | to look up. */ | |
284f4730 JB |
7896 | first_binding = (follow_key (key, |
7897 | nmaps - first_binding, | |
253598e4 | 7898 | submaps + first_binding, |
284f4730 | 7899 | defs + first_binding, |
4e50f26a | 7900 | submaps + first_binding) |
284f4730 | 7901 | + first_binding); |
0a7f1fc0 | 7902 | |
f4255cd1 | 7903 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
7904 | if (first_binding >= nmaps) |
7905 | { | |
9b8eb840 | 7906 | Lisp_Object head; |
0a7f1fc0 | 7907 | |
9b8eb840 | 7908 | head = EVENT_HEAD (key); |
24736fbc | 7909 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
7910 | { |
7911 | read_key_sequence_cmd = Vprefix_help_command; | |
7912 | keybuf[t++] = key; | |
7913 | last_nonmenu_event = key; | |
bc536d84 RS |
7914 | /* The Microsoft C compiler can't handle the goto that |
7915 | would go here. */ | |
309b0fc8 | 7916 | dummyflag = 1; |
0d882d52 | 7917 | break; |
7e85b935 RS |
7918 | } |
7919 | ||
8c18cbfb | 7920 | if (SYMBOLP (head)) |
0a7f1fc0 | 7921 | { |
9b8eb840 KH |
7922 | Lisp_Object breakdown; |
7923 | int modifiers; | |
0a7f1fc0 | 7924 | |
9b8eb840 | 7925 | breakdown = parse_modifiers (head); |
7539e11f | 7926 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
7927 | /* Attempt to reduce an unbound mouse event to a simpler |
7928 | event that is bound: | |
7929 | Drags reduce to clicks. | |
7930 | Double-clicks reduce to clicks. | |
7931 | Triple-clicks reduce to double-clicks, then to clicks. | |
7932 | Down-clicks are eliminated. | |
7933 | Double-downs reduce to downs, then are eliminated. | |
7934 | Triple-downs reduce to double-downs, then to downs, | |
7935 | then are eliminated. */ | |
7936 | if (modifiers & (down_modifier | drag_modifier | |
7937 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 7938 | { |
559f9d04 RS |
7939 | while (modifiers & (down_modifier | drag_modifier |
7940 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
7941 | { |
7942 | Lisp_Object new_head, new_click; | |
7943 | if (modifiers & triple_modifier) | |
7944 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
7945 | else if (modifiers & double_modifier) |
7946 | modifiers &= ~double_modifier; | |
7947 | else if (modifiers & drag_modifier) | |
7948 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
7949 | else |
7950 | { | |
7951 | /* Dispose of this `down' event by simply jumping | |
7952 | back to replay_key, to get another event. | |
7953 | ||
7954 | Note that if this event came from mock input, | |
7955 | then just jumping back to replay_key will just | |
7956 | hand it to us again. So we have to wipe out any | |
7957 | mock input. | |
7958 | ||
7959 | We could delete keybuf[t] and shift everything | |
7960 | after that to the left by one spot, but we'd also | |
7961 | have to fix up any variable that points into | |
7962 | keybuf, and shifting isn't really necessary | |
7963 | anyway. | |
7964 | ||
7965 | Adding prefixes for non-textual mouse clicks | |
7966 | creates two characters of mock input, and both | |
7967 | must be thrown away. If we're only looking at | |
7968 | the prefix now, we can just jump back to | |
7969 | replay_key. On the other hand, if we've already | |
7970 | processed the prefix, and now the actual click | |
7971 | itself is giving us trouble, then we've lost the | |
7972 | state of the keymaps we want to backtrack to, and | |
7973 | we need to replay the whole sequence to rebuild | |
7974 | it. | |
7975 | ||
7976 | Beyond that, only function key expansion could | |
7977 | create more than two keys, but that should never | |
7978 | generate mouse events, so it's okay to zero | |
7979 | mock_input in that case too. | |
7980 | ||
7981 | Isn't this just the most wonderful code ever? */ | |
7982 | if (t == last_real_key_start) | |
7983 | { | |
7984 | mock_input = 0; | |
7985 | goto replay_key; | |
7986 | } | |
7987 | else | |
7988 | { | |
7989 | mock_input = last_real_key_start; | |
7990 | goto replay_sequence; | |
7991 | } | |
7992 | } | |
7993 | ||
27203ead | 7994 | new_head |
7539e11f | 7995 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
7996 | new_click |
7997 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
7998 | |
7999 | /* Look for a binding for this new key. follow_key | |
8000 | promises that it didn't munge submaps the | |
8001 | last time we called it, since key was unbound. */ | |
27203ead RS |
8002 | first_binding |
8003 | = (follow_key (new_click, | |
8004 | nmaps - local_first_binding, | |
8005 | submaps + local_first_binding, | |
8006 | defs + local_first_binding, | |
4e50f26a | 8007 | submaps + local_first_binding) |
27203ead | 8008 | + local_first_binding); |
fbcd35bd JB |
8009 | |
8010 | /* If that click is bound, go for it. */ | |
8011 | if (first_binding < nmaps) | |
8012 | { | |
8013 | key = new_click; | |
8014 | break; | |
8015 | } | |
8016 | /* Otherwise, we'll leave key set to the drag event. */ | |
8017 | } | |
0a7f1fc0 JB |
8018 | } |
8019 | } | |
8020 | } | |
8021 | ||
284f4730 | 8022 | keybuf[t++] = key; |
7d6de002 RS |
8023 | /* Normally, last_nonmenu_event gets the previous key we read. |
8024 | But when a mouse popup menu is being used, | |
8025 | we don't update last_nonmenu_event; it continues to hold the mouse | |
8026 | event that preceded the first level of menu. */ | |
8027 | if (!used_mouse_menu) | |
8028 | last_nonmenu_event = key; | |
284f4730 | 8029 | |
6321824f RS |
8030 | /* Record what part of this_command_keys is the current key sequence. */ |
8031 | this_single_command_key_start = this_command_key_count - t; | |
8032 | ||
3fe8e9a2 RS |
8033 | prev_fkey_map = fkey_map; |
8034 | prev_fkey_start = fkey_start; | |
8035 | prev_fkey_end = fkey_end; | |
8036 | ||
8037 | prev_keytran_map = keytran_map; | |
8038 | prev_keytran_start = keytran_start; | |
8039 | prev_keytran_end = keytran_end; | |
8040 | ||
284f4730 | 8041 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
8042 | off the end of it. We only want to scan real keyboard input |
8043 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 8044 | re-reading old events, don't examine it. */ |
4e50f26a | 8045 | if (first_binding >= nmaps |
253598e4 | 8046 | && t >= mock_input) |
284f4730 JB |
8047 | { |
8048 | Lisp_Object fkey_next; | |
8049 | ||
e9bf89a0 RS |
8050 | /* Continue scan from fkey_end until we find a bound suffix. |
8051 | If we fail, increment fkey_start | |
8052 | and start fkey_end from there. */ | |
284f4730 JB |
8053 | while (fkey_end < t) |
8054 | { | |
f4255cd1 JB |
8055 | Lisp_Object key; |
8056 | ||
8057 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
8058 | /* Look up meta-characters by prefixing them |
8059 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 8060 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 8061 | { |
e74fbc70 RS |
8062 | fkey_next |
8063 | = get_keymap_1 | |
f4255cd1 | 8064 | (get_keyelt |
c6a67acd | 8065 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 8066 | 0, 1); |
bb9e9bed | 8067 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 8068 | } |
067ffa38 JB |
8069 | else |
8070 | fkey_next = fkey_map; | |
8071 | ||
e74fbc70 | 8072 | fkey_next |
c700c260 RS |
8073 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 1); |
8074 | ||
8075 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8076 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8077 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 8078 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
8079 | do_autoload (XSYMBOL (fkey_next)->function, |
8080 | fkey_next); | |
c700c260 RS |
8081 | |
8082 | /* Handle a symbol whose function definition is a keymap | |
8083 | or an array. */ | |
0afc861b RS |
8084 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8085 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
8086 | || !NILP (Fkeymapp (XSYMBOL (fkey_next)->function)))) | |
8087 | fkey_next = XSYMBOL (fkey_next)->function; | |
067ffa38 | 8088 | |
7a80a6f6 RS |
8089 | #if 0 /* I didn't turn this on, because it might cause trouble |
8090 | for the mapping of return into C-m and tab into C-i. */ | |
8091 | /* Optionally don't map function keys into other things. | |
8092 | This enables the user to redefine kp- keys easily. */ | |
8093 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8094 | fkey_next = Qnil; | |
8095 | #endif | |
8096 | ||
1abe6abe RS |
8097 | /* If the function key map gives a function, not an |
8098 | array, then call the function with no args and use | |
8099 | its value instead. */ | |
8100 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8101 | && fkey_end == t) | |
8102 | { | |
8103 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8104 | Lisp_Object tem; | |
8105 | tem = fkey_next; | |
8106 | ||
8107 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8108 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8109 | UNGCPRO; |
8110 | /* If the function returned something invalid, | |
8111 | barf--don't ignore it. | |
df0f2ba1 | 8112 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8113 | other variables.) */ |
8114 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8115 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8116 | } |
8117 | ||
e9bf89a0 RS |
8118 | function_key_possible = ! NILP (fkey_next); |
8119 | ||
85bc5181 | 8120 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8121 | function key map and it's a suffix of the current |
85bc5181 | 8122 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8123 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8124 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8125 | && fkey_end == t) |
8126 | { | |
2e864a76 | 8127 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8128 | |
8129 | t = fkey_start + len; | |
284f4730 | 8130 | if (t >= bufsize) |
3fe8e9a2 | 8131 | error ("Key sequence too long"); |
284f4730 | 8132 | |
f5ea6163 JB |
8133 | if (VECTORP (fkey_next)) |
8134 | bcopy (XVECTOR (fkey_next)->contents, | |
8135 | keybuf + fkey_start, | |
8136 | (t - fkey_start) * sizeof (keybuf[0])); | |
8137 | else if (STRINGP (fkey_next)) | |
8138 | { | |
8139 | int i; | |
8140 | ||
8141 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8142 | XSETFASTINT (keybuf[fkey_start + i], |
8143 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8144 | } |
df0f2ba1 | 8145 | |
284f4730 JB |
8146 | mock_input = t; |
8147 | fkey_start = fkey_end = t; | |
32e6d806 | 8148 | fkey_map = Vfunction_key_map; |
284f4730 | 8149 | |
3bd0dffb KH |
8150 | /* Do pass the results through key-translation-map. |
8151 | But don't retranslate what key-translation-map | |
8152 | has already translated. */ | |
8153 | keytran_end = keytran_start; | |
00a78037 RS |
8154 | keytran_map = Vkey_translation_map; |
8155 | ||
f4255cd1 | 8156 | goto replay_sequence; |
284f4730 | 8157 | } |
df0f2ba1 | 8158 | |
f4255cd1 | 8159 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 8160 | |
df0f2ba1 | 8161 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8162 | fkey_start. */ |
284f4730 JB |
8163 | if (NILP (fkey_map)) |
8164 | { | |
8165 | fkey_end = ++fkey_start; | |
8166 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8167 | function_key_possible = 0; |
284f4730 JB |
8168 | } |
8169 | } | |
8170 | } | |
a612e298 RS |
8171 | |
8172 | /* Look for this sequence in key-translation-map. */ | |
8173 | { | |
8174 | Lisp_Object keytran_next; | |
8175 | ||
8176 | /* Scan from keytran_end until we find a bound suffix. */ | |
8177 | while (keytran_end < t) | |
8178 | { | |
8179 | Lisp_Object key; | |
8180 | ||
8181 | key = keybuf[keytran_end++]; | |
8182 | /* Look up meta-characters by prefixing them | |
8183 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 8184 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
8185 | { |
8186 | keytran_next | |
8187 | = get_keymap_1 | |
8188 | (get_keyelt | |
c6a67acd | 8189 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 8190 | 0, 1); |
bb9e9bed | 8191 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
8192 | } |
8193 | else | |
8194 | keytran_next = keytran_map; | |
8195 | ||
8196 | keytran_next | |
e83f6bb0 | 8197 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 1); |
a612e298 | 8198 | |
c700c260 | 8199 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8200 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8201 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8202 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8203 | do_autoload (XSYMBOL (keytran_next)->function, |
8204 | keytran_next); | |
8205 | ||
c700c260 RS |
8206 | /* Handle a symbol whose function definition is a keymap |
8207 | or an array. */ | |
e83f6bb0 | 8208 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 RS |
8209 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
8210 | || !NILP (Fkeymapp (XSYMBOL (keytran_next)->function)))) | |
e83f6bb0 RS |
8211 | keytran_next = XSYMBOL (keytran_next)->function; |
8212 | ||
1abe6abe | 8213 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8214 | array, then call the function with one arg and use |
1abe6abe RS |
8215 | its value instead. */ |
8216 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8217 | && keytran_end == t) | |
8218 | { | |
8219 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8220 | Lisp_Object tem; | |
8221 | tem = keytran_next; | |
8222 | ||
40932d1a | 8223 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8224 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8225 | UNGCPRO; |
8226 | /* If the function returned something invalid, | |
8227 | barf--don't ignore it. | |
df0f2ba1 | 8228 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8229 | other variables.) */ |
8230 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8231 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8232 | } |
8233 | ||
00a78037 RS |
8234 | key_translation_possible = ! NILP (keytran_next); |
8235 | ||
a612e298 | 8236 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8237 | key translation map and it's a suffix of the current |
a612e298 RS |
8238 | sequence (i.e. keytran_end == t), replace it with |
8239 | the binding and restart with keytran_start at the end. */ | |
8240 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8241 | && keytran_end == t) | |
8242 | { | |
2e864a76 | 8243 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8244 | |
8245 | t = keytran_start + len; | |
8246 | if (t >= bufsize) | |
3fe8e9a2 | 8247 | error ("Key sequence too long"); |
a612e298 RS |
8248 | |
8249 | if (VECTORP (keytran_next)) | |
8250 | bcopy (XVECTOR (keytran_next)->contents, | |
8251 | keybuf + keytran_start, | |
8252 | (t - keytran_start) * sizeof (keybuf[0])); | |
8253 | else if (STRINGP (keytran_next)) | |
8254 | { | |
8255 | int i; | |
8256 | ||
8257 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8258 | XSETFASTINT (keybuf[keytran_start + i], |
8259 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8260 | } |
8261 | ||
8262 | mock_input = t; | |
8263 | keytran_start = keytran_end = t; | |
8264 | keytran_map = Vkey_translation_map; | |
8265 | ||
00a78037 RS |
8266 | /* Don't pass the results of key-translation-map |
8267 | through function-key-map. */ | |
8268 | fkey_start = fkey_end = t; | |
3bd0dffb | 8269 | fkey_map = Vfunction_key_map; |
00a78037 | 8270 | |
a612e298 RS |
8271 | goto replay_sequence; |
8272 | } | |
8273 | ||
8274 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
8275 | ||
df0f2ba1 | 8276 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
8277 | keytran_start. */ |
8278 | if (NILP (keytran_map)) | |
8279 | { | |
8280 | keytran_end = ++keytran_start; | |
8281 | keytran_map = Vkey_translation_map; | |
00a78037 | 8282 | key_translation_possible = 0; |
a612e298 RS |
8283 | } |
8284 | } | |
8285 | } | |
4e50f26a RS |
8286 | |
8287 | /* If KEY is not defined in any of the keymaps, | |
8288 | and cannot be part of a function key or translation, | |
8289 | and is an upper case letter | |
8290 | use the corresponding lower-case letter instead. */ | |
8291 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 8292 | && ! key_translation_possible |
8c18cbfb | 8293 | && INTEGERP (key) |
4e50f26a | 8294 | && ((((XINT (key) & 0x3ffff) |
301738ed | 8295 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
8296 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
8297 | || (XINT (key) & shift_modifier))) | |
8298 | { | |
569871d2 | 8299 | Lisp_Object new_key; |
569871d2 | 8300 | |
309b0fc8 RS |
8301 | original_uppercase = key; |
8302 | original_uppercase_position = t - 1; | |
8303 | ||
831f35a2 | 8304 | if (XINT (key) & shift_modifier) |
569871d2 | 8305 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 8306 | else |
569871d2 RS |
8307 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
8308 | | (XINT (key) & ~0x3ffff))); | |
8309 | ||
3fe8e9a2 RS |
8310 | /* We have to do this unconditionally, regardless of whether |
8311 | the lower-case char is defined in the keymaps, because they | |
8312 | might get translated through function-key-map. */ | |
8313 | keybuf[t - 1] = new_key; | |
8314 | mock_input = t; | |
8315 | ||
8316 | fkey_map = prev_fkey_map; | |
8317 | fkey_start = prev_fkey_start; | |
8318 | fkey_end = prev_fkey_end; | |
8319 | ||
8320 | keytran_map = prev_keytran_map; | |
8321 | keytran_start = prev_keytran_start; | |
8322 | keytran_end = prev_keytran_end; | |
8323 | ||
8324 | goto replay_sequence; | |
4e50f26a | 8325 | } |
ef8fd672 RS |
8326 | /* If KEY is not defined in any of the keymaps, |
8327 | and cannot be part of a function key or translation, | |
8328 | and is a shifted function key, | |
8329 | use the corresponding unshifted function key instead. */ | |
8330 | if (first_binding == nmaps && ! function_key_possible | |
8331 | && ! key_translation_possible | |
8332 | && SYMBOLP (key)) | |
8333 | { | |
8334 | Lisp_Object breakdown; | |
8335 | int modifiers; | |
8336 | ||
8337 | breakdown = parse_modifiers (key); | |
7539e11f | 8338 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
8339 | if (modifiers & shift_modifier) |
8340 | { | |
569871d2 | 8341 | Lisp_Object new_key; |
3fe8e9a2 RS |
8342 | |
8343 | original_uppercase = key; | |
8344 | original_uppercase_position = t - 1; | |
ef8fd672 | 8345 | |
569871d2 RS |
8346 | modifiers &= ~shift_modifier; |
8347 | new_key = apply_modifiers (modifiers, | |
7539e11f | 8348 | XCAR (breakdown)); |
569871d2 | 8349 | |
3fe8e9a2 RS |
8350 | keybuf[t - 1] = new_key; |
8351 | mock_input = t; | |
8352 | ||
8353 | fkey_map = prev_fkey_map; | |
8354 | fkey_start = prev_fkey_start; | |
8355 | fkey_end = prev_fkey_end; | |
8356 | ||
8357 | keytran_map = prev_keytran_map; | |
8358 | keytran_start = prev_keytran_start; | |
8359 | keytran_end = prev_keytran_end; | |
8360 | ||
8361 | goto replay_sequence; | |
ef8fd672 RS |
8362 | } |
8363 | } | |
284f4730 JB |
8364 | } |
8365 | ||
309b0fc8 | 8366 | if (!dummyflag) |
bc536d84 RS |
8367 | read_key_sequence_cmd = (first_binding < nmaps |
8368 | ? defs[first_binding] | |
8369 | : Qnil); | |
284f4730 | 8370 | |
cd21b839 | 8371 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 8372 | unbind_to (count, Qnil); |
07f76a14 | 8373 | |
3fe8e9a2 RS |
8374 | /* Don't downcase the last character if the caller says don't. |
8375 | Don't downcase it if the result is undefined, either. */ | |
8376 | if ((dont_downcase_last || first_binding >= nmaps) | |
8377 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
8378 | keybuf[t - 1] = original_uppercase; |
8379 | ||
07f76a14 JB |
8380 | /* Occasionally we fabricate events, perhaps by expanding something |
8381 | according to function-key-map, or by adding a prefix symbol to a | |
8382 | mouse click in the scroll bar or modeline. In this cases, return | |
8383 | the entire generated key sequence, even if we hit an unbound | |
8384 | prefix or a definition before the end. This means that you will | |
8385 | be able to push back the event properly, and also means that | |
8386 | read-key-sequence will always return a logical unit. | |
8387 | ||
8388 | Better ideas? */ | |
cca310da JB |
8389 | for (; t < mock_input; t++) |
8390 | { | |
f2647d04 DL |
8391 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8392 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8393 | echo_char (keybuf[t]); |
cca310da JB |
8394 | add_command_key (keybuf[t]); |
8395 | } | |
07f76a14 | 8396 | |
7d18f9ae RS |
8397 | |
8398 | ||
284f4730 JB |
8399 | return t; |
8400 | } | |
8401 | ||
a612e298 RS |
8402 | #if 0 /* This doc string is too long for some compilers. |
8403 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8404 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8405 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8406 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8407 | current local and global maps.\n\ | |
8408 | \n\ | |
c0a58692 RS |
8409 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8410 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8411 | as a continuation of the previous key.\n\ | |
284f4730 | 8412 | \n\ |
309b0fc8 RS |
8413 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8414 | convert the last event to lower case. (Normally any upper case event\n\ | |
8415 | is converted to lower case if the original event is undefined and the lower\n\ | |
8416 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
8417 | a key sequence to be defined.\n\ | |
8418 | \n\ | |
cb5df6ae JB |
8419 | A C-g typed while in this function is treated like any other character,\n\ |
8420 | and `quit-flag' is not set.\n\ | |
8421 | \n\ | |
8422 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
8423 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
8424 | of the selected window as normal.\n\ | |
ede41463 | 8425 | ""\n\ |
cb5df6ae JB |
8426 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
8427 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
8428 | or multi-click event is unbound, but the corresponding click event would\n\ |
8429 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 8430 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 8431 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
8432 | \n\ |
8433 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
8434 | lines separating windows, and scroll bars with imaginary keys\n\ |
8435 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 8436 | \n\ |
ce98e608 KH |
8437 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
8438 | function will process a switch-frame event if the user switches frames\n\ | |
8439 | before typing anything. If the user switches frames in the middle of a\n\ | |
8440 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
8441 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
8442 | \n\ |
8443 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
8444 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
8445 | `function-key-map' for more details.\n\ |
8446 | \n\ | |
8447 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
8448 | that this key sequence is being read by something that will\n\ | |
8449 | read commands one after another. It should be nil if the caller\n\ | |
8450 | will read just one key sequence.") | |
b638f328 | 8451 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
8452 | #endif |
8453 | ||
d5eecefb | 8454 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 8455 | 0) |
d5eecefb RS |
8456 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8457 | command_loop) | |
309b0fc8 | 8458 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8459 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
8460 | { |
8461 | Lisp_Object keybuf[30]; | |
8462 | register int i; | |
03cee6ae | 8463 | struct gcpro gcpro1; |
d5eecefb | 8464 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
8465 | |
8466 | if (!NILP (prompt)) | |
8467 | CHECK_STRING (prompt, 0); | |
8468 | QUIT; | |
8469 | ||
d5eecefb RS |
8470 | specbind (Qinput_method_exit_on_first_char, |
8471 | (NILP (command_loop) ? Qt : Qnil)); | |
8472 | specbind (Qinput_method_use_echo_area, | |
8473 | (NILP (command_loop) ? Qt : Qnil)); | |
8474 | ||
284f4730 JB |
8475 | bzero (keybuf, sizeof keybuf); |
8476 | GCPRO1 (keybuf[0]); | |
8477 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8478 | ||
daa37602 | 8479 | if (NILP (continue_echo)) |
6321824f RS |
8480 | { |
8481 | this_command_key_count = 0; | |
8482 | this_single_command_key_start = 0; | |
8483 | } | |
c0a58692 | 8484 | |
d0c48478 GM |
8485 | #ifdef HAVE_X_WINDOWS |
8486 | if (display_busy_cursor_p) | |
8487 | cancel_busy_cursor (); | |
8488 | #endif | |
8489 | ||
309b0fc8 | 8490 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 8491 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 8492 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 8493 | |
d0c48478 GM |
8494 | #ifdef HAVE_X_WINDOWS |
8495 | if (display_busy_cursor_p) | |
8496 | start_busy_cursor (); | |
8497 | #endif | |
8498 | ||
dcc408a0 RS |
8499 | if (i == -1) |
8500 | { | |
8501 | Vquit_flag = Qt; | |
8502 | QUIT; | |
8503 | } | |
284f4730 | 8504 | UNGCPRO; |
d5eecefb | 8505 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 8506 | } |
e39da3d7 RS |
8507 | |
8508 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 8509 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 8510 | "Like `read-key-sequence' but always return a vector.") |
d5eecefb RS |
8511 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8512 | command_loop) | |
e39da3d7 | 8513 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8514 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
8515 | { |
8516 | Lisp_Object keybuf[30]; | |
8517 | register int i; | |
03cee6ae | 8518 | struct gcpro gcpro1; |
d5eecefb | 8519 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
8520 | |
8521 | if (!NILP (prompt)) | |
8522 | CHECK_STRING (prompt, 0); | |
8523 | QUIT; | |
8524 | ||
d5eecefb RS |
8525 | specbind (Qinput_method_exit_on_first_char, |
8526 | (NILP (command_loop) ? Qt : Qnil)); | |
8527 | specbind (Qinput_method_use_echo_area, | |
8528 | (NILP (command_loop) ? Qt : Qnil)); | |
8529 | ||
e39da3d7 RS |
8530 | bzero (keybuf, sizeof keybuf); |
8531 | GCPRO1 (keybuf[0]); | |
8532 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8533 | ||
8534 | if (NILP (continue_echo)) | |
8535 | { | |
8536 | this_command_key_count = 0; | |
8537 | this_single_command_key_start = 0; | |
8538 | } | |
8539 | ||
d0c48478 GM |
8540 | #ifdef HAVE_X_WINDOWS |
8541 | if (display_busy_cursor_p) | |
8542 | cancel_busy_cursor (); | |
8543 | #endif | |
8544 | ||
e39da3d7 RS |
8545 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
8546 | prompt, ! NILP (dont_downcase_last), | |
8547 | ! NILP (can_return_switch_frame), 0); | |
8548 | ||
d0c48478 GM |
8549 | #ifdef HAVE_X_WINDOWS |
8550 | if (display_busy_cursor_p) | |
8551 | start_busy_cursor (); | |
8552 | #endif | |
8553 | ||
e39da3d7 RS |
8554 | if (i == -1) |
8555 | { | |
8556 | Vquit_flag = Qt; | |
8557 | QUIT; | |
8558 | } | |
8559 | UNGCPRO; | |
d5eecefb | 8560 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 8561 | } |
284f4730 | 8562 | \f |
158f7532 | 8563 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
8564 | "Execute CMD as an editor command.\n\ |
8565 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
8566 | Optional second arg RECORD-FLAG non-nil\n\ | |
8567 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
8568 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
8569 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 8570 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
8571 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
8572 | a special event, so ignore the prefix argument and don't clear it.") | |
8573 | (cmd, record_flag, keys, special) | |
8574 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
8575 | { |
8576 | register Lisp_Object final; | |
8577 | register Lisp_Object tem; | |
8578 | Lisp_Object prefixarg; | |
8579 | struct backtrace backtrace; | |
8580 | extern int debug_on_next_call; | |
8581 | ||
284f4730 JB |
8582 | debug_on_next_call = 0; |
8583 | ||
158f7532 RS |
8584 | if (NILP (special)) |
8585 | { | |
8586 | prefixarg = current_kboard->Vprefix_arg; | |
8587 | Vcurrent_prefix_arg = prefixarg; | |
8588 | current_kboard->Vprefix_arg = Qnil; | |
8589 | } | |
8590 | else | |
8591 | prefixarg = Qnil; | |
8592 | ||
8c18cbfb | 8593 | if (SYMBOLP (cmd)) |
284f4730 JB |
8594 | { |
8595 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 8596 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
8597 | { |
8598 | tem = Fsymbol_value (Qdisabled_command_hook); | |
8599 | if (!NILP (tem)) | |
8600 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
8601 | } | |
284f4730 JB |
8602 | } |
8603 | ||
01e26217 | 8604 | while (1) |
284f4730 | 8605 | { |
ffd56f97 | 8606 | final = Findirect_function (cmd); |
284f4730 JB |
8607 | |
8608 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
8609 | { |
8610 | struct gcpro gcpro1, gcpro2; | |
8611 | ||
8612 | GCPRO2 (cmd, prefixarg); | |
8613 | do_autoload (final, cmd); | |
8614 | UNGCPRO; | |
8615 | } | |
284f4730 JB |
8616 | else |
8617 | break; | |
8618 | } | |
8619 | ||
8c18cbfb | 8620 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
8621 | { |
8622 | /* If requested, place the macro in the command history. For | |
8623 | other sorts of commands, call-interactively takes care of | |
8624 | this. */ | |
e57d8fd8 | 8625 | if (!NILP (record_flag)) |
f4385381 RS |
8626 | { |
8627 | Vcommand_history | |
8628 | = Fcons (Fcons (Qexecute_kbd_macro, | |
8629 | Fcons (final, Fcons (prefixarg, Qnil))), | |
8630 | Vcommand_history); | |
8631 | ||
8632 | /* Don't keep command history around forever. */ | |
8633 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
8634 | { | |
8635 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
8636 | if (CONSP (tem)) | |
7539e11f | 8637 | XCDR (tem) = Qnil; |
f4385381 RS |
8638 | } |
8639 | } | |
284f4730 JB |
8640 | |
8641 | return Fexecute_kbd_macro (final, prefixarg); | |
8642 | } | |
f4385381 | 8643 | |
8c18cbfb | 8644 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
8645 | { |
8646 | backtrace.next = backtrace_list; | |
8647 | backtrace_list = &backtrace; | |
8648 | backtrace.function = &Qcall_interactively; | |
8649 | backtrace.args = &cmd; | |
8650 | backtrace.nargs = 1; | |
8651 | backtrace.evalargs = 0; | |
8652 | ||
e57d8fd8 | 8653 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
8654 | |
8655 | backtrace_list = backtrace.next; | |
8656 | return tem; | |
8657 | } | |
8658 | return Qnil; | |
8659 | } | |
8660 | \f | |
284f4730 JB |
8661 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
8662 | 1, 1, "P", | |
8663 | "Read function name, then read its arguments and call it.") | |
8664 | (prefixarg) | |
8665 | Lisp_Object prefixarg; | |
8666 | { | |
8667 | Lisp_Object function; | |
8668 | char buf[40]; | |
8669 | Lisp_Object saved_keys; | |
5434fce6 | 8670 | Lisp_Object bindings, value; |
214360e9 | 8671 | struct gcpro gcpro1, gcpro2; |
284f4730 | 8672 | |
b0f2a7bf KH |
8673 | saved_keys = Fvector (this_command_key_count, |
8674 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 8675 | buf[0] = 0; |
fde7aff8 | 8676 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
8677 | |
8678 | if (EQ (prefixarg, Qminus)) | |
8679 | strcpy (buf, "- "); | |
7539e11f | 8680 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 8681 | strcpy (buf, "C-u "); |
7539e11f | 8682 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
8683 | { |
8684 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 8685 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 8686 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 8687 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
8688 | else |
8689 | abort (); | |
8690 | } | |
8c18cbfb | 8691 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
8692 | { |
8693 | if (sizeof (int) == sizeof (EMACS_INT)) | |
8694 | sprintf (buf, "%d ", XINT (prefixarg)); | |
8695 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 8696 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
8697 | else |
8698 | abort (); | |
8699 | } | |
284f4730 JB |
8700 | |
8701 | /* This isn't strictly correct if execute-extended-command | |
8702 | is bound to anything else. Perhaps it should use | |
8703 | this_command_keys? */ | |
8704 | strcat (buf, "M-x "); | |
8705 | ||
8706 | /* Prompt with buf, and then read a string, completing from and | |
8707 | restricting to the set of all defined commands. Don't provide | |
51763820 | 8708 | any initial input. Save the command read on the extended-command |
03b4122a | 8709 | history list. */ |
284f4730 JB |
8710 | function = Fcompleting_read (build_string (buf), |
8711 | Vobarray, Qcommandp, | |
4328577a KH |
8712 | Qt, Qnil, Qextended_command_history, Qnil, |
8713 | Qnil); | |
284f4730 | 8714 | |
1f5b1641 RS |
8715 | if (STRINGP (function) && XSTRING (function)->size == 0) |
8716 | error ("No command name given"); | |
8717 | ||
1113d9db JB |
8718 | /* Set this_command_keys to the concatenation of saved_keys and |
8719 | function, followed by a RET. */ | |
284f4730 | 8720 | { |
1113d9db | 8721 | struct Lisp_String *str; |
b0f2a7bf | 8722 | Lisp_Object *keys; |
284f4730 | 8723 | int i; |
284f4730 | 8724 | |
1113d9db | 8725 | this_command_key_count = 0; |
6321824f | 8726 | this_single_command_key_start = 0; |
1113d9db | 8727 | |
b0f2a7bf KH |
8728 | keys = XVECTOR (saved_keys)->contents; |
8729 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
8730 | add_command_key (keys[i]); | |
1113d9db JB |
8731 | |
8732 | str = XSTRING (function); | |
8733 | for (i = 0; i < str->size; i++) | |
301738ed | 8734 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 8735 | |
301738ed | 8736 | add_command_key (make_number ('\015')); |
284f4730 JB |
8737 | } |
8738 | ||
8739 | UNGCPRO; | |
8740 | ||
0a7f1fc0 | 8741 | function = Fintern (function, Qnil); |
d8bcf58e | 8742 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
8743 | Vthis_command = function; |
8744 | real_this_command = function; | |
284f4730 | 8745 | |
6526ab49 RS |
8746 | /* If enabled, show which key runs this command. */ |
8747 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 8748 | && NILP (Vexecuting_macro) |
6526ab49 | 8749 | && SYMBOLP (function)) |
5434fce6 RS |
8750 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8751 | Qt, Qnil); | |
8752 | else | |
8753 | bindings = Qnil; | |
6526ab49 | 8754 | |
5434fce6 RS |
8755 | value = Qnil; |
8756 | GCPRO2 (bindings, value); | |
8757 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 8758 | |
5434fce6 | 8759 | /* If the command has a key binding, print it now. */ |
3ababa60 | 8760 | if (!NILP (bindings) |
ee112567 KH |
8761 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
8762 | Qmouse_movement))) | |
5434fce6 RS |
8763 | { |
8764 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 8765 | int delay_time; |
985f9f66 | 8766 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
8767 | /* This command displayed something in the echo area; |
8768 | so wait a few seconds, then display our suggestion message. */ | |
8769 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
8770 | ? XINT (Vsuggest_key_bindings) : 2); | |
8771 | else | |
8772 | /* This command left the echo area empty, | |
8773 | so display our message immediately. */ | |
8774 | delay_time = 0; | |
8775 | ||
8776 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 8777 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 8778 | { |
5434fce6 RS |
8779 | Lisp_Object binding; |
8780 | char *newmessage; | |
985f9f66 | 8781 | int message_p = push_message (); |
5434fce6 RS |
8782 | |
8783 | binding = Fkey_description (bindings); | |
8784 | ||
8785 | newmessage | |
8786 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 8787 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 8788 | + 100); |
3ababa60 | 8789 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 8790 | XSYMBOL (function)->name->data, |
5434fce6 | 8791 | XSTRING (binding)->data); |
301738ed RS |
8792 | message2_nolog (newmessage, |
8793 | strlen (newmessage), | |
8794 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
8795 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
8796 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
8797 | Qnil, Qnil)) |
8798 | && message_p) | |
8799 | restore_message (); | |
8800 | ||
8801 | pop_message (); | |
6526ab49 RS |
8802 | } |
8803 | } | |
8804 | ||
5434fce6 | 8805 | RETURN_UNGCPRO (value); |
284f4730 | 8806 | } |
6526ab49 RS |
8807 | |
8808 | /* Find the set of keymaps now active. | |
8809 | Store into *MAPS_P a vector holding the various maps | |
8810 | and return the number of them. The vector was malloc'd | |
8811 | and the caller should free it. */ | |
8812 | ||
8813 | int | |
8814 | current_active_maps (maps_p) | |
8815 | Lisp_Object **maps_p; | |
8816 | { | |
8817 | Lisp_Object *tmaps, *maps; | |
8818 | int nmaps; | |
8819 | ||
8820 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
8821 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8822 | { | |
8823 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8824 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
8825 | nmaps = 0; | |
8826 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8827 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8828 | if (!NILP (Voverriding_local_map)) | |
8829 | maps[nmaps++] = Voverriding_local_map; | |
8830 | } | |
8831 | else | |
8832 | { | |
8833 | /* No, so use major and minor mode keymaps. */ | |
8834 | nmaps = current_minor_maps (NULL, &tmaps); | |
8835 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
8836 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
6526ab49 | 8837 | maps[nmaps++] = get_local_map (PT, current_buffer); |
6526ab49 RS |
8838 | } |
8839 | maps[nmaps++] = current_global_map; | |
8840 | ||
8841 | *maps_p = maps; | |
8842 | return nmaps; | |
8843 | } | |
284f4730 | 8844 | \f |
d9d4c147 | 8845 | /* Return nonzero if input events are pending. */ |
284f4730 | 8846 | |
dfcf069d | 8847 | int |
284f4730 JB |
8848 | detect_input_pending () |
8849 | { | |
8850 | if (!input_pending) | |
d9d4c147 KH |
8851 | get_input_pending (&input_pending, 0); |
8852 | ||
8853 | return input_pending; | |
8854 | } | |
8855 | ||
b1878f45 | 8856 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 8857 | |
dfcf069d | 8858 | int |
87dd9b9b RS |
8859 | detect_input_pending_run_timers (do_display) |
8860 | int do_display; | |
d9d4c147 | 8861 | { |
87dd9b9b RS |
8862 | int old_timers_run = timers_run; |
8863 | ||
d9d4c147 KH |
8864 | if (!input_pending) |
8865 | get_input_pending (&input_pending, 1); | |
284f4730 | 8866 | |
87dd9b9b | 8867 | if (old_timers_run != timers_run && do_display) |
7ee32cda GM |
8868 | { |
8869 | redisplay_preserve_echo_area (); | |
8870 | /* The following fixes a bug when using lazy-lock with | |
8871 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
8872 | from an idle timer function. The symptom of the bug is that | |
8873 | the cursor sometimes doesn't become visible until the next X | |
8874 | event is processed. --gerd. */ | |
8875 | if (rif) | |
8876 | rif->flush_display (NULL); | |
8877 | } | |
87dd9b9b | 8878 | |
284f4730 JB |
8879 | return input_pending; |
8880 | } | |
8881 | ||
ffd56f97 JB |
8882 | /* This is called in some cases before a possible quit. |
8883 | It cases the next call to detect_input_pending to recompute input_pending. | |
8884 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
8885 | |
8886 | void | |
ffd56f97 JB |
8887 | clear_input_pending () |
8888 | { | |
8889 | input_pending = 0; | |
8890 | } | |
8891 | ||
b1878f45 RS |
8892 | /* Return nonzero if there are pending requeued events. |
8893 | This isn't used yet. The hope is to make wait_reading_process_input | |
8894 | call it, and return return if it runs Lisp code that unreads something. | |
8895 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
8896 | to do in that case. It isn't trivial. */ | |
8897 | ||
dfcf069d | 8898 | int |
b1878f45 RS |
8899 | requeued_events_pending_p () |
8900 | { | |
8901 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
8902 | } | |
8903 | ||
8904 | ||
284f4730 JB |
8905 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
8906 | "T if command input is currently available with no waiting.\n\ | |
8907 | Actually, the value is nil only if we can be sure that no input is available.") | |
8908 | () | |
8909 | { | |
24597608 | 8910 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
8911 | return (Qt); |
8912 | ||
d9d4c147 KH |
8913 | get_input_pending (&input_pending, 1); |
8914 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
8915 | } |
8916 | ||
8917 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 8918 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
8919 | () |
8920 | { | |
5160df46 | 8921 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
8922 | Lisp_Object val; |
8923 | ||
8924 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 8925 | return Fvector (total_keys, keys); |
284f4730 JB |
8926 | else |
8927 | { | |
5160df46 JB |
8928 | val = Fvector (NUM_RECENT_KEYS, keys); |
8929 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
8930 | XVECTOR (val)->contents, |
8931 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 8932 | bcopy (keys, |
284f4730 JB |
8933 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
8934 | recent_keys_index * sizeof (Lisp_Object)); | |
8935 | return val; | |
8936 | } | |
8937 | } | |
8938 | ||
8939 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
8940 | "Return the key sequence that invoked this command.\n\ |
8941 | The value is a string or a vector.") | |
284f4730 JB |
8942 | () |
8943 | { | |
86e5706b RS |
8944 | return make_event_array (this_command_key_count, |
8945 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
8946 | } |
8947 | ||
e39da3d7 RS |
8948 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
8949 | "Return the key sequence that invoked this command, as a vector.") | |
8950 | () | |
8951 | { | |
8952 | return Fvector (this_command_key_count, | |
8953 | XVECTOR (this_command_keys)->contents); | |
8954 | } | |
8955 | ||
6321824f RS |
8956 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
8957 | Sthis_single_command_keys, 0, 0, 0, | |
8958 | "Return the key sequence that invoked this command.\n\ | |
8959 | Unlike `this-command-keys', this function's value\n\ | |
8960 | does not include prefix arguments.\n\ | |
e39da3d7 | 8961 | The value is always a vector.") |
6321824f RS |
8962 | () |
8963 | { | |
e39da3d7 RS |
8964 | return Fvector (this_command_key_count |
8965 | - this_single_command_key_start, | |
8966 | (XVECTOR (this_command_keys)->contents | |
8967 | + this_single_command_key_start)); | |
6321824f RS |
8968 | } |
8969 | ||
7d18f9ae RS |
8970 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
8971 | Sthis_single_command_raw_keys, 0, 0, 0, | |
8972 | "Return the raw events that were read for this command.\n\ | |
8973 | Unlike `this-single-command-keys', this function's value\n\ | |
8974 | shows the events before all translations (except for input methods).\n\ | |
8975 | The value is always a vector.") | |
8976 | () | |
8977 | { | |
8978 | return Fvector (raw_keybuf_count, | |
8979 | (XVECTOR (raw_keybuf)->contents)); | |
8980 | } | |
8981 | ||
71918b75 RS |
8982 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
8983 | Sreset_this_command_lengths, 0, 0, 0, | |
8984 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
8985 | \n\ | |
8986 | `universal-argument-other-key' rereads the event just typed.\n\ | |
8987 | It then gets translated through `function-key-map'.\n\ | |
8988 | The translated event gets included in the echo area and in\n\ | |
8989 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
8990 | That is not right.\n\ | |
8991 | \n\ | |
8992 | Calling this function directs the translated event to replace\n\ | |
8993 | the original event, so that only one version of the event actually\n\ | |
8994 | appears in the echo area and in the value of `this-command-keys.'.") | |
8995 | () | |
8996 | { | |
8997 | before_command_restore_flag = 1; | |
8998 | before_command_key_count_1 = before_command_key_count; | |
8999 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 9000 | return Qnil; |
71918b75 RS |
9001 | } |
9002 | ||
82e6e5af RS |
9003 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
9004 | Sclear_this_command_keys, 0, 0, 0, | |
e27b53f6 GM |
9005 | "Clear out the vector that `this-command-keys' returns.\n\ |
9006 | Clear vector containing last 100 events.") | |
82e6e5af RS |
9007 | () |
9008 | { | |
fb0dde6c GM |
9009 | int i; |
9010 | ||
82e6e5af | 9011 | this_command_key_count = 0; |
fb0dde6c GM |
9012 | |
9013 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9014 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9015 | total_keys = 0; | |
9016 | recent_keys_index = 0; | |
82e6e5af RS |
9017 | return Qnil; |
9018 | } | |
9019 | ||
284f4730 JB |
9020 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
9021 | "Return the current depth in recursive edits.") | |
9022 | () | |
9023 | { | |
9024 | Lisp_Object temp; | |
bb9e9bed | 9025 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9026 | return temp; |
9027 | } | |
9028 | ||
9029 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
9030 | "FOpen dribble file: ", | |
9b2471df RS |
9031 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
9032 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
9033 | (file) |
9034 | Lisp_Object file; | |
9035 | { | |
6cb52def | 9036 | if (dribble) |
284f4730 | 9037 | { |
6cb52def KH |
9038 | fclose (dribble); |
9039 | dribble = 0; | |
284f4730 | 9040 | } |
6cb52def | 9041 | if (!NILP (file)) |
284f4730 JB |
9042 | { |
9043 | file = Fexpand_file_name (file, Qnil); | |
9044 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
9045 | if (dribble == 0) |
9046 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9047 | } |
9048 | return Qnil; | |
9049 | } | |
9050 | ||
9051 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
9052 | "Discard the contents of the terminal input buffer.\n\ | |
9053 | Also cancel any kbd macro being defined.") | |
9054 | () | |
9055 | { | |
c5fdd383 | 9056 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9057 | update_mode_lines++; |
9058 | ||
24597608 | 9059 | Vunread_command_events = Qnil; |
86e5706b | 9060 | unread_command_char = -1; |
284f4730 JB |
9061 | |
9062 | discard_tty_input (); | |
9063 | ||
7ee32cda | 9064 | kbd_fetch_ptr = kbd_store_ptr; |
beecf6a1 | 9065 | Ffillarray (kbd_buffer_frame_or_window, Qnil); |
284f4730 JB |
9066 | input_pending = 0; |
9067 | ||
9068 | return Qnil; | |
9069 | } | |
9070 | \f | |
9071 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
9072 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
9073 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
9074 | control, run a subshell instead.\n\n\ | |
284f4730 | 9075 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
9076 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
9077 | \n\ | |
bbdc2092 RS |
9078 | Before suspending, run the normal hook `suspend-hook'.\n\ |
9079 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
9080 | \n\ |
9081 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 9082 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
9083 | (stuffstring) |
9084 | Lisp_Object stuffstring; | |
9085 | { | |
284f4730 JB |
9086 | int count = specpdl_ptr - specpdl; |
9087 | int old_height, old_width; | |
9088 | int width, height; | |
03cee6ae | 9089 | struct gcpro gcpro1; |
284f4730 JB |
9090 | |
9091 | if (!NILP (stuffstring)) | |
9092 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 9093 | |
1e95ed28 JB |
9094 | /* Run the functions in suspend-hook. */ |
9095 | if (!NILP (Vrun_hooks)) | |
9096 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9097 | |
b7d2ebbf | 9098 | GCPRO1 (stuffstring); |
ff11dfa1 | 9099 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9100 | reset_sys_modes (); |
9101 | /* sys_suspend can get an error if it tries to fork a subshell | |
9102 | and the system resources aren't available for that. */ | |
91a0da02 | 9103 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9104 | Qnil); |
284f4730 | 9105 | stuff_buffered_input (stuffstring); |
8026024c KH |
9106 | if (cannot_suspend) |
9107 | sys_subshell (); | |
9108 | else | |
9109 | sys_suspend (); | |
284f4730 JB |
9110 | unbind_to (count, Qnil); |
9111 | ||
9112 | /* Check if terminal/window size has changed. | |
9113 | Note that this is not useful when we are running directly | |
9114 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9115 | get_frame_size (&width, &height); |
284f4730 | 9116 | if (width != old_width || height != old_height) |
788f89eb | 9117 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9118 | |
1e95ed28 | 9119 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9120 | if (!NILP (Vrun_hooks)) |
9121 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9122 | |
284f4730 JB |
9123 | UNGCPRO; |
9124 | return Qnil; | |
9125 | } | |
9126 | ||
9127 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9128 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9129 | |
07a59269 | 9130 | void |
284f4730 JB |
9131 | stuff_buffered_input (stuffstring) |
9132 | Lisp_Object stuffstring; | |
9133 | { | |
284f4730 | 9134 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9135 | #ifdef BSD_SYSTEM |
284f4730 | 9136 | #ifndef BSD4_1 |
612b78ef | 9137 | register unsigned char *p; |
612b78ef | 9138 | |
8c18cbfb | 9139 | if (STRINGP (stuffstring)) |
284f4730 JB |
9140 | { |
9141 | register int count; | |
9142 | ||
9143 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9144 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9145 | while (count-- > 0) |
9146 | stuff_char (*p++); | |
9147 | stuff_char ('\n'); | |
9148 | } | |
9149 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 9150 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9151 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9152 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9153 | { |
beecf6a1 KH |
9154 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9155 | kbd_fetch_ptr = kbd_buffer; | |
9156 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9157 | stuff_char (kbd_fetch_ptr->code); | |
9158 | kbd_fetch_ptr->kind = no_event; | |
9159 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
9160 | - kbd_buffer] | |
7b4aedb9 | 9161 | = Qnil); |
284f4730 JB |
9162 | } |
9163 | input_pending = 0; | |
9164 | #endif | |
6df54671 | 9165 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9166 | } |
9167 | \f | |
dfcf069d | 9168 | void |
ffd56f97 JB |
9169 | set_waiting_for_input (time_to_clear) |
9170 | EMACS_TIME *time_to_clear; | |
284f4730 | 9171 | { |
ffd56f97 | 9172 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9173 | |
9174 | /* Tell interrupt_signal to throw back to read_char, */ | |
9175 | waiting_for_input = 1; | |
9176 | ||
9177 | /* If interrupt_signal was called before and buffered a C-g, | |
9178 | make it run again now, to avoid timing error. */ | |
9179 | if (!NILP (Vquit_flag)) | |
9180 | quit_throw_to_read_char (); | |
284f4730 JB |
9181 | } |
9182 | ||
07a59269 | 9183 | void |
284f4730 JB |
9184 | clear_waiting_for_input () |
9185 | { | |
9186 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9187 | waiting_for_input = 0; | |
ffd56f97 | 9188 | input_available_clear_time = 0; |
284f4730 JB |
9189 | } |
9190 | ||
9191 | /* This routine is called at interrupt level in response to C-G. | |
9192 | If interrupt_input, this is the handler for SIGINT. | |
9193 | Otherwise, it is called from kbd_buffer_store_event, | |
9194 | in handling SIGIO or SIGTINT. | |
9195 | ||
9196 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
9197 | immediately throw back to read_char. | |
9198 | ||
9199 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
9200 | This causes eval to throw, when it gets a chance. | |
9201 | If quit-flag is already non-nil, it stops the job right away. */ | |
9202 | ||
9203 | SIGTYPE | |
91c049d4 RS |
9204 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9205 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9206 | { |
9207 | char c; | |
9208 | /* Must preserve main program's value of errno. */ | |
9209 | int old_errno = errno; | |
788f89eb | 9210 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9211 | |
5970a8cb | 9212 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9213 | if (!read_socket_hook && NILP (Vwindow_system)) |
9214 | { | |
9215 | /* USG systems forget handlers when they are used; | |
9216 | must reestablish each time */ | |
9217 | signal (SIGINT, interrupt_signal); | |
9218 | signal (SIGQUIT, interrupt_signal); | |
9219 | } | |
284f4730 JB |
9220 | #endif /* USG */ |
9221 | ||
9222 | cancel_echoing (); | |
9223 | ||
31e4e97b | 9224 | if (!NILP (Vquit_flag) |
788f89eb | 9225 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9226 | { |
31e4e97b EZ |
9227 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9228 | another SIGINT, it might be harmful due to non-reentrancy | |
9229 | in I/O functions. */ | |
9230 | sigblock (sigmask (SIGINT)); | |
9231 | ||
284f4730 JB |
9232 | fflush (stdout); |
9233 | reset_sys_modes (); | |
31e4e97b | 9234 | |
284f4730 JB |
9235 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9236 | /* | |
9237 | * On systems which can suspend the current process and return to the original | |
9238 | * shell, this command causes the user to end up back at the shell. | |
9239 | * The "Auto-save" and "Abort" questions are not asked until | |
9240 | * the user elects to return to emacs, at which point he can save the current | |
9241 | * job and either dump core or continue. | |
9242 | */ | |
9243 | sys_suspend (); | |
9244 | #else | |
9245 | #ifdef VMS | |
9246 | if (sys_suspend () == -1) | |
9247 | { | |
9248 | printf ("Not running as a subprocess;\n"); | |
9249 | printf ("you can continue or abort.\n"); | |
9250 | } | |
9251 | #else /* not VMS */ | |
9252 | /* Perhaps should really fork an inferior shell? | |
9253 | But that would not provide any way to get back | |
9254 | to the original shell, ever. */ | |
9255 | printf ("No support for stopping a process on this operating system;\n"); | |
9256 | printf ("you can continue or abort.\n"); | |
9257 | #endif /* not VMS */ | |
9258 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9259 | #ifdef MSDOS |
9260 | /* We must remain inside the screen area when the internal terminal | |
9261 | is used. Note that [Enter] is not echoed by dos. */ | |
9262 | cursor_to (0, 0); | |
9263 | #endif | |
118d6ca9 RS |
9264 | /* It doesn't work to autosave while GC is in progress; |
9265 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9266 | if (!gc_in_progress) | |
9fd7d808 | 9267 | { |
118d6ca9 RS |
9268 | printf ("Auto-save? (y or n) "); |
9269 | fflush (stdout); | |
9270 | if (((c = getchar ()) & ~040) == 'Y') | |
9271 | { | |
9272 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9273 | #ifdef MSDOS |
118d6ca9 | 9274 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9275 | #else /* not MSDOS */ |
118d6ca9 | 9276 | printf ("Auto-save done\n"); |
80e4aa30 | 9277 | #endif /* not MSDOS */ |
118d6ca9 RS |
9278 | } |
9279 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9280 | } |
118d6ca9 RS |
9281 | else |
9282 | { | |
9283 | /* During GC, it must be safe to reenable quitting again. */ | |
9284 | Vinhibit_quit = Qnil; | |
9285 | #ifdef MSDOS | |
9286 | printf ("\r\n"); | |
9287 | #endif /* not MSDOS */ | |
9288 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9289 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9290 | fflush (stdout); | |
9291 | } | |
9292 | ||
80e4aa30 RS |
9293 | #ifdef MSDOS |
9294 | printf ("\r\nAbort? (y or n) "); | |
9295 | #else /* not MSDOS */ | |
284f4730 JB |
9296 | #ifdef VMS |
9297 | printf ("Abort (and enter debugger)? (y or n) "); | |
9298 | #else /* not VMS */ | |
9299 | printf ("Abort (and dump core)? (y or n) "); | |
9300 | #endif /* not VMS */ | |
80e4aa30 | 9301 | #endif /* not MSDOS */ |
284f4730 JB |
9302 | fflush (stdout); |
9303 | if (((c = getchar ()) & ~040) == 'Y') | |
9304 | abort (); | |
9305 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9306 | #ifdef MSDOS |
9307 | printf ("\r\nContinuing...\r\n"); | |
9308 | #else /* not MSDOS */ | |
284f4730 | 9309 | printf ("Continuing...\n"); |
80e4aa30 | 9310 | #endif /* not MSDOS */ |
284f4730 JB |
9311 | fflush (stdout); |
9312 | init_sys_modes (); | |
31e4e97b | 9313 | sigfree (); |
284f4730 JB |
9314 | } |
9315 | else | |
9316 | { | |
9317 | /* If executing a function that wants to be interrupted out of | |
9318 | and the user has not deferred quitting by binding `inhibit-quit' | |
9319 | then quit right away. */ | |
9320 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9321 | { | |
e39da3d7 RS |
9322 | struct gl_state_s saved; |
9323 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9324 | ||
284f4730 JB |
9325 | immediate_quit = 0; |
9326 | sigfree (); | |
e39da3d7 RS |
9327 | saved = gl_state; |
9328 | GCPRO4 (saved.object, saved.global_code, | |
9329 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9330 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9331 | gl_state = saved; |
9332 | UNGCPRO; | |
284f4730 JB |
9333 | } |
9334 | else | |
9335 | /* Else request quit when it's safe */ | |
9336 | Vquit_flag = Qt; | |
9337 | } | |
9338 | ||
9339 | if (waiting_for_input && !echoing) | |
9340 | quit_throw_to_read_char (); | |
9341 | ||
9342 | errno = old_errno; | |
9343 | } | |
9344 | ||
9345 | /* Handle a C-g by making read_char return C-g. */ | |
9346 | ||
07a59269 | 9347 | void |
284f4730 JB |
9348 | quit_throw_to_read_char () |
9349 | { | |
284f4730 JB |
9350 | sigfree (); |
9351 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9352 | clear_waiting_for_input (); |
284f4730 JB |
9353 | input_pending = 0; |
9354 | ||
24597608 | 9355 | Vunread_command_events = Qnil; |
86e5706b | 9356 | unread_command_char = -1; |
284f4730 | 9357 | |
087feab3 RS |
9358 | #if 0 /* Currently, sit_for is called from read_char without turning |
9359 | off polling. And that can call set_waiting_for_input. | |
9360 | It seems to be harmless. */ | |
e6b01c14 JB |
9361 | #ifdef POLL_FOR_INPUT |
9362 | /* May be > 1 if in recursive minibuffer. */ | |
9363 | if (poll_suppress_count == 0) | |
9364 | abort (); | |
9365 | #endif | |
087feab3 | 9366 | #endif |
4c52b668 | 9367 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9368 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf RS |
9369 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
9370 | Qnil, 0); | |
e6b01c14 | 9371 | |
284f4730 JB |
9372 | _longjmp (getcjmp, 1); |
9373 | } | |
9374 | \f | |
9375 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9376 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9377 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9378 | nil means use CBREAK mode.\n\ | |
9379 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9380 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9381 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9382 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9383 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9384 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9385 | See also `current-input-mode'.") | |
284f4730 JB |
9386 | (interrupt, flow, meta, quit) |
9387 | Lisp_Object interrupt, flow, meta, quit; | |
9388 | { | |
9389 | if (!NILP (quit) | |
8c18cbfb | 9390 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9391 | error ("set-input-mode: QUIT must be an ASCII character"); |
9392 | ||
9393 | #ifdef POLL_FOR_INPUT | |
9394 | stop_polling (); | |
9395 | #endif | |
284f4730 | 9396 | |
07de30b9 | 9397 | #ifndef DOS_NT |
2ee250ec | 9398 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 9399 | reset_sys_modes (); |
2ee250ec RS |
9400 | #endif |
9401 | ||
284f4730 JB |
9402 | #ifdef SIGIO |
9403 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 9404 | if (read_socket_hook) |
9a0f60bb KH |
9405 | { |
9406 | /* When using X, don't give the user a real choice, | |
9407 | because we haven't implemented the mechanisms to support it. */ | |
9408 | #ifdef NO_SOCK_SIGIO | |
9409 | interrupt_input = 0; | |
9410 | #else /* not NO_SOCK_SIGIO */ | |
9411 | interrupt_input = 1; | |
284f4730 | 9412 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
9413 | } |
9414 | else | |
284f4730 JB |
9415 | interrupt_input = !NILP (interrupt); |
9416 | #else /* not SIGIO */ | |
9417 | interrupt_input = 0; | |
9418 | #endif /* not SIGIO */ | |
9a0f60bb | 9419 | |
284f4730 JB |
9420 | /* Our VMS input only works by interrupts, as of now. */ |
9421 | #ifdef VMS | |
9422 | interrupt_input = 1; | |
9423 | #endif | |
9a0f60bb | 9424 | |
284f4730 | 9425 | flow_control = !NILP (flow); |
b04904fb RS |
9426 | if (NILP (meta)) |
9427 | meta_key = 0; | |
9428 | else if (EQ (meta, Qt)) | |
9429 | meta_key = 1; | |
9430 | else | |
9431 | meta_key = 2; | |
284f4730 JB |
9432 | if (!NILP (quit)) |
9433 | /* Don't let this value be out of range. */ | |
9434 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
9435 | ||
07de30b9 | 9436 | #ifndef DOS_NT |
284f4730 | 9437 | init_sys_modes (); |
2ee250ec | 9438 | #endif |
34f04431 RS |
9439 | |
9440 | #ifdef POLL_FOR_INPUT | |
9441 | poll_suppress_count = 1; | |
9442 | start_polling (); | |
9443 | #endif | |
284f4730 JB |
9444 | return Qnil; |
9445 | } | |
80645119 JB |
9446 | |
9447 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
9448 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
9449 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
9450 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
9451 | nil, Emacs is using CBREAK mode.\n\ | |
9452 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
9453 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
9454 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
9455 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
9456 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
9457 | all 8 bits as the character code.\n\ | |
80645119 JB |
9458 | QUIT is the character Emacs currently uses to quit.\n\ |
9459 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 9460 | `set-input-mode'.") |
80645119 JB |
9461 | () |
9462 | { | |
9463 | Lisp_Object val[4]; | |
9464 | ||
9465 | val[0] = interrupt_input ? Qt : Qnil; | |
9466 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 9467 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 9468 | XSETFASTINT (val[3], quit_char); |
80645119 | 9469 | |
bf673a7a | 9470 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
9471 | } |
9472 | ||
284f4730 | 9473 | \f |
6c6083a9 | 9474 | /* |
c5fdd383 | 9475 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
9476 | */ |
9477 | void | |
c5fdd383 KH |
9478 | init_kboard (kb) |
9479 | KBOARD *kb; | |
6c6083a9 | 9480 | { |
217258d5 | 9481 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 9482 | kb->Vlast_command = Qnil; |
75045dcb | 9483 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 9484 | kb->Vprefix_arg = Qnil; |
75045dcb | 9485 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
9486 | kb->kbd_queue = Qnil; |
9487 | kb->kbd_queue_has_data = 0; | |
9488 | kb->immediate_echo = 0; | |
9489 | kb->echoptr = kb->echobuf; | |
9490 | kb->echo_after_prompt = -1; | |
9491 | kb->kbd_macro_buffer = 0; | |
9492 | kb->kbd_macro_bufsize = 0; | |
9493 | kb->defining_kbd_macro = Qnil; | |
9494 | kb->Vlast_kbd_macro = Qnil; | |
9495 | kb->reference_count = 0; | |
7c97ffdc | 9496 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 9497 | kb->system_key_syms = Qnil; |
9ba47203 | 9498 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
9499 | } |
9500 | ||
9501 | /* | |
c5fdd383 | 9502 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 9503 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
9504 | * it a second time. |
9505 | */ | |
e50b8090 | 9506 | static void |
c5fdd383 KH |
9507 | wipe_kboard (kb) |
9508 | KBOARD *kb; | |
6c6083a9 | 9509 | { |
c5fdd383 KH |
9510 | if (kb->kbd_macro_buffer) |
9511 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
9512 | } |
9513 | ||
e50b8090 KH |
9514 | #ifdef MULTI_KBOARD |
9515 | void | |
9516 | delete_kboard (kb) | |
9517 | KBOARD *kb; | |
9518 | { | |
9519 | KBOARD **kbp; | |
9520 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
9521 | if (*kbp == NULL) | |
9522 | abort (); | |
9523 | *kbp = kb->next_kboard; | |
9524 | wipe_kboard (kb); | |
9525 | xfree (kb); | |
9526 | } | |
9527 | #endif | |
9528 | ||
dfcf069d | 9529 | void |
284f4730 JB |
9530 | init_keyboard () |
9531 | { | |
284f4730 JB |
9532 | /* This is correct before outermost invocation of the editor loop */ |
9533 | command_loop_level = -1; | |
9534 | immediate_quit = 0; | |
9535 | quit_char = Ctl ('g'); | |
24597608 | 9536 | Vunread_command_events = Qnil; |
86e5706b | 9537 | unread_command_char = -1; |
87dd9b9b | 9538 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 9539 | total_keys = 0; |
9deb415a | 9540 | recent_keys_index = 0; |
beecf6a1 KH |
9541 | kbd_fetch_ptr = kbd_buffer; |
9542 | kbd_store_ptr = kbd_buffer; | |
9543 | kbd_buffer_frame_or_window | |
9544 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 9545 | #ifdef HAVE_MOUSE |
a9d77f1f | 9546 | do_mouse_tracking = Qnil; |
2eb6bfbe | 9547 | #endif |
284f4730 JB |
9548 | input_pending = 0; |
9549 | ||
4c52b668 KH |
9550 | /* This means that command_loop_1 won't try to select anything the first |
9551 | time through. */ | |
9552 | internal_last_event_frame = Qnil; | |
9553 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 9554 | |
c5fdd383 | 9555 | #ifdef MULTI_KBOARD |
aaca43a1 | 9556 | current_kboard = initial_kboard; |
6c6083a9 | 9557 | #endif |
aaca43a1 | 9558 | wipe_kboard (current_kboard); |
c5fdd383 | 9559 | init_kboard (current_kboard); |
07d2b8de | 9560 | |
beecf6a1 KH |
9561 | if (initialized) |
9562 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
9563 | ||
9564 | kbd_buffer_frame_or_window | |
9565 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 9566 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
9567 | { |
9568 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 9569 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
9570 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
9571 | SIGQUIT and we can't tell which one it will give us. */ | |
9572 | signal (SIGQUIT, interrupt_signal); | |
9573 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 9574 | } |
284f4730 JB |
9575 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
9576 | #ifdef SIGIO | |
7a80a6f6 RS |
9577 | if (!noninteractive) |
9578 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 9579 | #endif /* SIGIO */ |
284f4730 JB |
9580 | |
9581 | /* Use interrupt input by default, if it works and noninterrupt input | |
9582 | has deficiencies. */ | |
9583 | ||
9584 | #ifdef INTERRUPT_INPUT | |
9585 | interrupt_input = 1; | |
9586 | #else | |
9587 | interrupt_input = 0; | |
9588 | #endif | |
9589 | ||
9590 | /* Our VMS input only works by interrupts, as of now. */ | |
9591 | #ifdef VMS | |
9592 | interrupt_input = 1; | |
9593 | #endif | |
9594 | ||
9595 | sigfree (); | |
9596 | dribble = 0; | |
9597 | ||
9598 | if (keyboard_init_hook) | |
9599 | (*keyboard_init_hook) (); | |
9600 | ||
9601 | #ifdef POLL_FOR_INPUT | |
9602 | poll_suppress_count = 1; | |
9603 | start_polling (); | |
9604 | #endif | |
9605 | } | |
9606 | ||
df0f2ba1 | 9607 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
9608 | event header symbols and put properties on them. */ |
9609 | struct event_head { | |
9610 | Lisp_Object *var; | |
9611 | char *name; | |
9612 | Lisp_Object *kind; | |
9613 | }; | |
9614 | ||
9615 | struct event_head head_table[] = { | |
7b4aedb9 | 9616 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 9617 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 9618 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 9619 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
9620 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
9621 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
9622 | }; |
9623 | ||
dfcf069d | 9624 | void |
284f4730 JB |
9625 | syms_of_keyboard () |
9626 | { | |
9ea173e8 | 9627 | /* Tool-bars. */ |
7ee32cda GM |
9628 | QCimage = intern (":image"); |
9629 | staticpro (&QCimage); | |
9630 | ||
9631 | staticpro (&Qhelp_echo); | |
9632 | Qhelp_echo = intern ("help-echo"); | |
9633 | ||
e8886a1d RS |
9634 | staticpro (&item_properties); |
9635 | item_properties = Qnil; | |
9636 | ||
9ea173e8 GM |
9637 | staticpro (&tool_bar_item_properties); |
9638 | tool_bar_item_properties = Qnil; | |
9639 | staticpro (&tool_bar_items_vector); | |
9640 | tool_bar_items_vector = Qnil; | |
7ee32cda | 9641 | |
d5eecefb RS |
9642 | staticpro (&real_this_command); |
9643 | real_this_command = Qnil; | |
9644 | ||
d925fb39 RS |
9645 | Qtimer_event_handler = intern ("timer-event-handler"); |
9646 | staticpro (&Qtimer_event_handler); | |
9647 | ||
2e894dab RS |
9648 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
9649 | staticpro (&Qdisabled_command_hook); | |
9650 | ||
284f4730 JB |
9651 | Qself_insert_command = intern ("self-insert-command"); |
9652 | staticpro (&Qself_insert_command); | |
9653 | ||
9654 | Qforward_char = intern ("forward-char"); | |
9655 | staticpro (&Qforward_char); | |
9656 | ||
9657 | Qbackward_char = intern ("backward-char"); | |
9658 | staticpro (&Qbackward_char); | |
9659 | ||
9660 | Qdisabled = intern ("disabled"); | |
9661 | staticpro (&Qdisabled); | |
9662 | ||
e58aa385 RS |
9663 | Qundefined = intern ("undefined"); |
9664 | staticpro (&Qundefined); | |
9665 | ||
86e5706b RS |
9666 | Qpre_command_hook = intern ("pre-command-hook"); |
9667 | staticpro (&Qpre_command_hook); | |
9668 | ||
9669 | Qpost_command_hook = intern ("post-command-hook"); | |
9670 | staticpro (&Qpost_command_hook); | |
9671 | ||
59aadc81 RS |
9672 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
9673 | staticpro (&Qpost_command_idle_hook); | |
9674 | ||
3ef14e46 RS |
9675 | Qdeferred_action_function = intern ("deferred-action-function"); |
9676 | staticpro (&Qdeferred_action_function); | |
9677 | ||
40932d1a RS |
9678 | Qcommand_hook_internal = intern ("command-hook-internal"); |
9679 | staticpro (&Qcommand_hook_internal); | |
9680 | ||
284f4730 JB |
9681 | Qfunction_key = intern ("function-key"); |
9682 | staticpro (&Qfunction_key); | |
13b5e56c | 9683 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 9684 | staticpro (&Qmouse_click); |
07de30b9 GV |
9685 | #ifdef WINDOWSNT |
9686 | Qmouse_wheel = intern ("mouse-wheel"); | |
9687 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
9688 | Qlanguage_change = intern ("language-change"); |
9689 | staticpro (&Qlanguage_change); | |
07de30b9 | 9690 | #endif |
a24dc617 RS |
9691 | Qdrag_n_drop = intern ("drag-n-drop"); |
9692 | staticpro (&Qdrag_n_drop); | |
284f4730 | 9693 | |
5bf68f6e AS |
9694 | Qusr1_signal = intern ("usr1-signal"); |
9695 | staticpro (&Qusr1_signal); | |
9696 | Qusr2_signal = intern ("usr2-signal"); | |
9697 | staticpro (&Qusr2_signal); | |
9698 | ||
598a9fa7 JB |
9699 | Qmenu_enable = intern ("menu-enable"); |
9700 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
9701 | Qmenu_alias = intern ("menu-alias"); |
9702 | staticpro (&Qmenu_alias); | |
9703 | QCenable = intern (":enable"); | |
9704 | staticpro (&QCenable); | |
9705 | QCvisible = intern (":visible"); | |
9706 | staticpro (&QCvisible); | |
7ee32cda GM |
9707 | QChelp = intern (":help"); |
9708 | staticpro (&QChelp); | |
e8886a1d RS |
9709 | QCfilter = intern (":filter"); |
9710 | staticpro (&QCfilter); | |
9711 | QCbutton = intern (":button"); | |
9712 | staticpro (&QCbutton); | |
74c1de23 RS |
9713 | QCkeys = intern (":keys"); |
9714 | staticpro (&QCkeys); | |
9715 | QCkey_sequence = intern (":key-sequence"); | |
9716 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
9717 | QCtoggle = intern (":toggle"); |
9718 | staticpro (&QCtoggle); | |
9719 | QCradio = intern (":radio"); | |
9720 | staticpro (&QCradio); | |
598a9fa7 | 9721 | |
284f4730 JB |
9722 | Qmode_line = intern ("mode-line"); |
9723 | staticpro (&Qmode_line); | |
e5d77022 JB |
9724 | Qvertical_line = intern ("vertical-line"); |
9725 | staticpro (&Qvertical_line); | |
3c370943 JB |
9726 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
9727 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
9728 | Qmenu_bar = intern ("menu-bar"); |
9729 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
9730 | |
9731 | Qabove_handle = intern ("above-handle"); | |
9732 | staticpro (&Qabove_handle); | |
9733 | Qhandle = intern ("handle"); | |
9734 | staticpro (&Qhandle); | |
9735 | Qbelow_handle = intern ("below-handle"); | |
9736 | staticpro (&Qbelow_handle); | |
db08707d RS |
9737 | Qup = intern ("up"); |
9738 | staticpro (&Qup); | |
9739 | Qdown = intern ("down"); | |
9740 | staticpro (&Qdown); | |
7ee32cda GM |
9741 | Qtop = intern ("top"); |
9742 | staticpro (&Qtop); | |
9743 | Qbottom = intern ("bottom"); | |
9744 | staticpro (&Qbottom); | |
9745 | Qend_scroll = intern ("end-scroll"); | |
9746 | staticpro (&Qend_scroll); | |
eef28553 SM |
9747 | Qratio = intern ("ratio"); |
9748 | staticpro (&Qratio); | |
284f4730 | 9749 | |
cd21b839 | 9750 | Qevent_kind = intern ("event-kind"); |
284f4730 | 9751 | staticpro (&Qevent_kind); |
88cb0656 JB |
9752 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
9753 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
9754 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
9755 | staticpro (&Qevent_symbol_element_mask); | |
9756 | Qmodifier_cache = intern ("modifier-cache"); | |
9757 | staticpro (&Qmodifier_cache); | |
284f4730 | 9758 | |
48e416d4 RS |
9759 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
9760 | staticpro (&Qrecompute_lucid_menubar); | |
9761 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
9762 | staticpro (&Qactivate_menubar_hook); | |
9763 | ||
f4eef8b4 RS |
9764 | Qpolling_period = intern ("polling-period"); |
9765 | staticpro (&Qpolling_period); | |
9766 | ||
7d18f9ae RS |
9767 | Qinput_method_function = intern ("input-method-function"); |
9768 | staticpro (&Qinput_method_function); | |
9769 | ||
d5eecefb RS |
9770 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
9771 | staticpro (&Qinput_method_exit_on_first_char); | |
9772 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
9773 | staticpro (&Qinput_method_use_echo_area); | |
9774 | ||
9775 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
9776 | Fset (Qinput_method_use_echo_area, Qnil); | |
9777 | ||
284f4730 JB |
9778 | { |
9779 | struct event_head *p; | |
9780 | ||
9781 | for (p = head_table; | |
9782 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
9783 | p++) | |
9784 | { | |
9785 | *p->var = intern (p->name); | |
9786 | staticpro (p->var); | |
9787 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 9788 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
9789 | } |
9790 | } | |
9791 | ||
7b4aedb9 JB |
9792 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
9793 | staticpro (&button_down_location); | |
88cb0656 JB |
9794 | |
9795 | { | |
9796 | int i; | |
9797 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
9798 | ||
9799 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
9800 | for (i = 0; i < len; i++) | |
86e5706b RS |
9801 | if (modifier_names[i]) |
9802 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
9803 | staticpro (&modifier_symbols); |
9804 | } | |
9805 | ||
9deb415a JB |
9806 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
9807 | staticpro (&recent_keys); | |
9808 | ||
6569cc8d | 9809 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 9810 | staticpro (&this_command_keys); |
6569cc8d | 9811 | |
7d18f9ae RS |
9812 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
9813 | staticpro (&raw_keybuf); | |
9814 | ||
03b4122a BF |
9815 | Qextended_command_history = intern ("extended-command-history"); |
9816 | Fset (Qextended_command_history, Qnil); | |
9817 | staticpro (&Qextended_command_history); | |
9818 | ||
beecf6a1 KH |
9819 | kbd_buffer_frame_or_window |
9820 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
9821 | staticpro (&kbd_buffer_frame_or_window); | |
9822 | ||
24597608 RS |
9823 | accent_key_syms = Qnil; |
9824 | staticpro (&accent_key_syms); | |
9825 | ||
284f4730 JB |
9826 | func_key_syms = Qnil; |
9827 | staticpro (&func_key_syms); | |
9828 | ||
9829 | mouse_syms = Qnil; | |
9830 | staticpro (&mouse_syms); | |
9831 | ||
07de30b9 GV |
9832 | #ifdef WINDOWSNT |
9833 | mouse_wheel_syms = Qnil; | |
9834 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
9835 | |
9836 | drag_n_drop_syms = Qnil; | |
9837 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
9838 | #endif |
9839 | ||
cd21b839 JB |
9840 | unread_switch_frame = Qnil; |
9841 | staticpro (&unread_switch_frame); | |
9842 | ||
fe412364 EN |
9843 | internal_last_event_frame = Qnil; |
9844 | staticpro (&internal_last_event_frame); | |
9845 | ||
9846 | read_key_sequence_cmd = Qnil; | |
9847 | staticpro (&read_key_sequence_cmd); | |
9848 | ||
759860a6 RS |
9849 | menu_bar_one_keymap_changed_items = Qnil; |
9850 | staticpro (&menu_bar_one_keymap_changed_items); | |
9851 | ||
a1706c30 | 9852 | defsubr (&Sevent_convert_list); |
284f4730 | 9853 | defsubr (&Sread_key_sequence); |
e39da3d7 | 9854 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 9855 | defsubr (&Srecursive_edit); |
2eb6bfbe | 9856 | #ifdef HAVE_MOUSE |
284f4730 | 9857 | defsubr (&Strack_mouse); |
2eb6bfbe | 9858 | #endif |
284f4730 JB |
9859 | defsubr (&Sinput_pending_p); |
9860 | defsubr (&Scommand_execute); | |
9861 | defsubr (&Srecent_keys); | |
9862 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 9863 | defsubr (&Sthis_command_keys_vector); |
6321824f | 9864 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 9865 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 9866 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 9867 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
9868 | defsubr (&Ssuspend_emacs); |
9869 | defsubr (&Sabort_recursive_edit); | |
9870 | defsubr (&Sexit_recursive_edit); | |
9871 | defsubr (&Srecursion_depth); | |
9872 | defsubr (&Stop_level); | |
9873 | defsubr (&Sdiscard_input); | |
9874 | defsubr (&Sopen_dribble_file); | |
9875 | defsubr (&Sset_input_mode); | |
80645119 | 9876 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
9877 | defsubr (&Sexecute_extended_command); |
9878 | ||
284f4730 | 9879 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
9880 | "Last input event that was part of a command."); |
9881 | ||
186cf719 | 9882 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 9883 | "Last input event that was part of a command."); |
284f4730 | 9884 | |
7d6de002 | 9885 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 9886 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
9887 | Mouse menus give back keys that don't look like mouse events;\n\ |
9888 | this variable holds the actual mouse event that led to the menu,\n\ | |
9889 | so that you can determine whether the command was run by mouse or not."); | |
9890 | ||
284f4730 | 9891 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
9892 | "Last input event."); |
9893 | ||
186cf719 | 9894 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 9895 | "Last input event."); |
284f4730 | 9896 | |
24597608 | 9897 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
9898 | "List of events to be read as the command input.\n\ |
9899 | These events are processed first, before actual keyboard input."); | |
9900 | Vunread_command_events = Qnil; | |
284f4730 | 9901 | |
86e5706b RS |
9902 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
9903 | "If not -1, an object to be read as next command input event."); | |
9904 | ||
7d18f9ae RS |
9905 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
9906 | "List of events to be processed as input by input methods.\n\ | |
9907 | These events are processed after `unread-command-events', but\n\ | |
9908 | before actual keyboard input."); | |
9909 | Vunread_post_input_method_events = Qnil; | |
9910 | ||
9911 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
9912 | "List of events to be processed as input by input methods.\n\ | |
9913 | These events are processed after `unread-command-events', but\n\ | |
9914 | before actual keyboard input."); | |
9915 | Vunread_input_method_events = Qnil; | |
9916 | ||
284f4730 | 9917 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
9918 | "Meta-prefix character code.\n\ |
9919 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 9920 | XSETINT (meta_prefix_char, 033); |
284f4730 | 9921 | |
6c7178b9 | 9922 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
9923 | "The last command executed.\n\ |
9924 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
9925 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
9926 | command.\n\ | |
18f29056 RS |
9927 | \n\ |
9928 | The value `mode-exit' is special; it means that the previous command\n\ | |
9929 | read an event that told it to exit, and it did so and unread that event.\n\ | |
9930 | In other words, the present command is the event that made the previous\n\ | |
9931 | command exit.\n\ | |
9932 | \n\ | |
9933 | The value `kill-region' is special; it means that the previous command\n\ | |
9934 | was a kill command."); | |
284f4730 | 9935 | |
75045dcb RS |
9936 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
9937 | "Same as `last-command', but never altered by Lisp code."); | |
9938 | ||
d5eecefb | 9939 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
9940 | "The command now being executed.\n\ |
9941 | The command can set this variable; whatever is put here\n\ | |
9942 | will be in `last-command' during the following command."); | |
d5eecefb | 9943 | Vthis_command = Qnil; |
284f4730 JB |
9944 | |
9945 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
dace7f4e | 9946 | "*Number of input events between auto-saves.\n\ |
284f4730 JB |
9947 | Zero means disable autosaving due to number of characters typed."); |
9948 | auto_save_interval = 300; | |
9949 | ||
9950 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
9951 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
9952 | Zero or nil means disable auto-saving due to idleness.\n\ |
9953 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 9954 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 9955 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 9956 | |
39aab679 | 9957 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
f2647d04 DL |
9958 | "*Nonzero means echo unfinished commands after this many seconds of pause.\n\ |
9959 | The value may be integer or floating point."); | |
39aab679 | 9960 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
9961 | |
9962 | DEFVAR_INT ("polling-period", &polling_period, | |
9963 | "*Interval between polling for input during Lisp execution.\n\ | |
9964 | The reason for polling is to make C-g work to stop a running program.\n\ | |
9965 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
9966 | Polling is automatically disabled in all other cases."); | |
9967 | polling_period = 2; | |
df0f2ba1 | 9968 | |
564dc952 | 9969 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 9970 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
9971 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
9972 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 9973 | by position only."); |
aab06933 | 9974 | Vdouble_click_time = make_number (500); |
fbcd35bd | 9975 | |
03361bcc RS |
9976 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
9977 | "*Non-nil means inhibit local map menu bar menus."); | |
9978 | inhibit_local_menu_bar_menus = 0; | |
9979 | ||
284f4730 | 9980 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 9981 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
9982 | This includes key sequences read from keyboard macros.\n\ |
9983 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
9984 | num_input_keys = 0; |
9985 | ||
c43b1734 RS |
9986 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
9987 | "Number of input events read from the keyboard so far.\n\ | |
9988 | This does not include events generated by keyboard macros."); | |
9989 | num_nonmacro_input_events = 0; | |
fa90970d | 9990 | |
4c52b668 KH |
9991 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
9992 | "The frame in which the most recently read event occurred.\n\ | |
9993 | If the last event came from a keyboard macro, this is set to `macro'."); | |
9994 | Vlast_event_frame = Qnil; | |
9995 | ||
fa90970d RS |
9996 | /* This variable is set up in sysdep.c. */ |
9997 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
9998 | "The ERASE character as set by the user with stty."); | |
9999 | ||
7e85b935 | 10000 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
10001 | "Character to recognize as meaning Help.\n\ |
10002 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
10003 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 10004 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 10005 | |
ecb7cb34 KH |
10006 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
10007 | "List of input events to recognize as meaning Help.\n\ | |
10008 | These work just like the value of `help-char' (see that)."); | |
10009 | Vhelp_event_list = Qnil; | |
10010 | ||
284f4730 | 10011 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 10012 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
10013 | If the form returns a string, that string is displayed.\n\ |
10014 | If `help-form' is nil, the help char is not recognized."); | |
10015 | Vhelp_form = Qnil; | |
10016 | ||
7e85b935 RS |
10017 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
10018 | "Command to run when `help-char' character follows a prefix key.\n\ | |
10019 | This command is used only when there is no actual binding\n\ | |
10020 | for that character after that prefix key."); | |
10021 | Vprefix_help_command = Qnil; | |
10022 | ||
284f4730 JB |
10023 | DEFVAR_LISP ("top-level", &Vtop_level, |
10024 | "Form to evaluate when Emacs starts up.\n\ | |
10025 | Useful to set before you dump a modified Emacs."); | |
10026 | Vtop_level = Qnil; | |
10027 | ||
10028 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 10029 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 10030 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
10031 | The value may be a string, a vector, or a char-table.\n\ |
10032 | If it is a string or vector of length N,\n\ | |
10033 | character codes N and up are untranslated.\n\ | |
10034 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
10035 | Vkeyboard_translate_table = Qnil; |
10036 | ||
8026024c | 10037 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
10038 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
10039 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
10040 | cannot_suspend = 0; |
10041 | ||
284f4730 | 10042 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 10043 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 10044 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
10045 | for elements that have prompt strings.\n\ |
10046 | The menu is displayed on the screen\n\ | |
10047 | if X menus were enabled at configuration\n\ | |
10048 | time and the previous event was a mouse click prefix key.\n\ | |
10049 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
10050 | menu_prompting = 1; |
10051 | ||
10052 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
10053 | "Character to see next line of menu prompt.\n\ | |
10054 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 10055 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10056 | |
10057 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
10058 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
10059 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
10060 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 10061 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
10062 | all input characters will have the control modifier applied to them.\n\ |
10063 | \n\ | |
9d9f56dd | 10064 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 10065 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 10066 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 10067 | cancels any modification."); |
9fa4395d | 10068 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10069 | |
10070 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
10071 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
10072 | The command loop sets this to nil before each command,\n\ | |
10073 | and tests the value when the command returns.\n\ | |
10074 | Buffer modification stores t in this variable."); | |
10075 | Vdeactivate_mark = Qnil; | |
10076 | ||
b0f2a7bf KH |
10077 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
10078 | "Temporary storage of pre-command-hook or post-command-hook."); | |
10079 | Vcommand_hook_internal = Qnil; | |
10080 | ||
86e5706b | 10081 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 10082 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
10083 | If an unhandled error happens in running this hook,\n\ |
10084 | the hook value is set to nil, since otherwise the error\n\ | |
10085 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
10086 | Vpre_command_hook = Qnil; |
10087 | ||
10088 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 10089 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
10090 | If an unhandled error happens in running this hook,\n\ |
10091 | the hook value is set to nil, since otherwise the error\n\ | |
10092 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 10093 | Vpost_command_hook = Qnil; |
48e416d4 | 10094 | |
59aadc81 RS |
10095 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
10096 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
10097 | Errors running the hook are caught and ignored.\n\ |
10098 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
10099 | Vpost_command_idle_hook = Qnil; |
10100 | ||
10101 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 10102 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
10103 | This is measured in microseconds."); |
10104 | post_command_idle_delay = 100000; | |
10105 | ||
cdb9d665 RS |
10106 | #if 0 |
10107 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
10108 | "Normal hook run when clearing the echo area."); | |
10109 | #endif | |
10110 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10111 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
10112 | ||
48e416d4 RS |
10113 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
10114 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
10115 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 10116 | |
9f9c0e27 RS |
10117 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
10118 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 10119 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10120 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10121 | |
217258d5 KH |
10122 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10123 | Voverriding_terminal_local_map, | |
779b34df | 10124 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10125 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
10126 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
10127 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
10128 | set up a different keymap for reading the next command."); | |
217258d5 | 10129 | |
9dd3131c RS |
10130 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10131 | "Keymap that overrides all other local keymaps.\n\ | |
10132 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10133 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10134 | Voverriding_local_map = Qnil; | |
10135 | ||
d0a49716 RS |
10136 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10137 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10138 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10139 | and the minor mode maps regardless of `overriding-local-map'."); | |
10140 | Voverriding_local_map_menu_flag = Qnil; | |
10141 | ||
7f07d5ca RS |
10142 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10143 | "Keymap defining bindings for special events to execute at low level."); | |
10144 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10145 | ||
71edead1 | 10146 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10147 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10148 | |
7c97ffdc | 10149 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10150 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10151 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10152 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10153 | and SYMBOL is its name."); |
8a792f3a RS |
10154 | |
10155 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10156 | "List of deferred actions to be performed at a later time.\n\ | |
10157 | The precise format isn't relevant here; we just check whether it is nil."); | |
10158 | Vdeferred_action_list = Qnil; | |
10159 | ||
10160 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10161 | "Function to call to handle deferred actions, after each command.\n\ | |
10162 | This function is called with no arguments after each command\n\ | |
10163 | whenever `deferred-action-list' is non-nil."); | |
10164 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10165 | |
10166 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10167 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10168 | The value can be a length of time to show the message for.\n\ |
10169 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10170 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10171 | |
c04cbc3b | 10172 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10173 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10174 | Vtimer_list = Qnil; |
d9d4c147 KH |
10175 | |
10176 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10177 | "List of active idle-time timers in order of increasing time"); | |
10178 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10179 | |
10180 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10181 | "If non-nil, the function that implements the current input method.\n\ | |
10182 | It's called with one argument, a printing character that was just read.\n\ | |
10183 | \(That means a character with code 040...0176.)\n\ | |
10184 | Typically this function uses `read-event' to read additional events.\n\ | |
10185 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10186 | so it will not be called recursively.\n\ | |
10187 | \n\ | |
10188 | The function should return a list of zero or more events\n\ | |
10189 | to be used as input. If it wants to put back some events\n\ | |
10190 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10191 | it can add them to the beginning of `unread-command-events'.\n\ |
10192 | \n\ | |
10193 | The input method function can find in `input-method-previous-method'\n\ | |
10194 | the previous echo area message.\n\ | |
10195 | \n\ | |
10196 | The input method function should refer to the variables\n\ | |
10197 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10198 | for guidance on what to do."); | |
7d18f9ae | 10199 | Vinput_method_function = Qnil; |
d5eecefb RS |
10200 | |
10201 | DEFVAR_LISP ("input-method-previous-message", | |
10202 | &Vinput_method_previous_message, | |
a8b13665 | 10203 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10204 | This variable exists because `read-event' clears the echo area\n\ |
10205 | before running the input method. It is nil if there was no message."); | |
10206 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10207 | |
10208 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10209 | "If non-nil, the function that implements the display of help.\n\ | |
10210 | It's called with one argument, the help string to display."); | |
10211 | Vshow_help_function = Qnil; | |
adf5cb9c KH |
10212 | |
10213 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
10214 | "If non-nil, suppress point adjustment after executing a command.\n\ | |
10215 | \n\ | |
10216 | After a command is executed, if point is moved into a region that has\n\ | |
10217 | special properties (e.g. composition, display), we adjust point to\n\ | |
10218 | the boundary of the region. But, several special commands sets this\n\ | |
10219 | variable to non-nil, then we suppress the point adjustment.\n\ | |
10220 | \n\ | |
10221 | This variable is set to nil before reading a command, and is checked\n\ | |
10222 | just after executing the command"); | |
10223 | Vdisable_point_adjustment = Qnil; | |
10224 | ||
10225 | DEFVAR_LISP ("global-disable-point-adjustment", | |
10226 | &Vglobal_disable_point_adjustment, | |
10227 | "*If non-nil, always suppress point adjustment.\n\ | |
10228 | \n\ | |
10229 | The default value is nil, in which case, point adjustment are\n\ | |
10230 | suppressed only after special commands that set\n\ | |
10231 | `disable-point-adjustment' (which see) to non-nil."); | |
10232 | Vglobal_disable_point_adjustment = Qnil; | |
284f4730 JB |
10233 | } |
10234 | ||
dfcf069d | 10235 | void |
284f4730 JB |
10236 | keys_of_keyboard () |
10237 | { | |
10238 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10239 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10240 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10241 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10242 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10243 | |
10244 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10245 | "handle-delete-frame"); | |
10246 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10247 | "ignore-event"); | |
10248 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10249 | "ignore-event"); | |
284f4730 | 10250 | } |