Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
68c45bf0 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99 Free Software Foundation, Inc. |
284f4730 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 8 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
284f4730 | 20 | |
18160b98 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <signal.h> |
284f4730 | 23 | #include <stdio.h> |
284f4730 JB |
24 | #include "termchar.h" |
25 | #include "termopts.h" | |
26 | #include "lisp.h" | |
27 | #include "termhooks.h" | |
28 | #include "macros.h" | |
ff11dfa1 | 29 | #include "frame.h" |
284f4730 JB |
30 | #include "window.h" |
31 | #include "commands.h" | |
32 | #include "buffer.h" | |
37cd9f30 | 33 | #include "charset.h" |
284f4730 | 34 | #include "disptab.h" |
f4255cd1 | 35 | #include "dispextern.h" |
284f4730 | 36 | #include "keyboard.h" |
e39da3d7 | 37 | #include "syntax.h" |
497ba7a1 | 38 | #include "intervals.h" |
9ac0d9e0 | 39 | #include "blockinput.h" |
e8886a1d | 40 | #include "puresize.h" |
8a9f5d3c GM |
41 | #include "systime.h" |
42 | #include "atimer.h" | |
284f4730 JB |
43 | #include <setjmp.h> |
44 | #include <errno.h> | |
45 | ||
80e4aa30 RS |
46 | #ifdef MSDOS |
47 | #include "msdos.h" | |
48 | #include <time.h> | |
49 | #else /* not MSDOS */ | |
284f4730 JB |
50 | #ifndef VMS |
51 | #include <sys/ioctl.h> | |
284f4730 | 52 | #endif |
80e4aa30 | 53 | #endif /* not MSDOS */ |
284f4730 | 54 | |
52baf19e | 55 | #include "syssignal.h" |
6ef5b54f | 56 | #include "systty.h" |
52baf19e | 57 | |
03cee6ae GM |
58 | #include <sys/types.h> |
59 | #ifdef HAVE_UNISTD_H | |
60 | #include <unistd.h> | |
61 | #endif | |
62 | ||
c5e3b6c5 RS |
63 | /* This is to get the definitions of the XK_ symbols. */ |
64 | #ifdef HAVE_X_WINDOWS | |
65 | #include "xterm.h" | |
66 | #endif | |
67 | ||
e98a93eb GV |
68 | #ifdef HAVE_NTGUI |
69 | #include "w32term.h" | |
70 | #endif /* HAVE_NTGUI */ | |
71 | ||
0c2611c5 RS |
72 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
73 | #include "systime.h" | |
74 | ||
52baf19e JB |
75 | extern int errno; |
76 | ||
9ac0d9e0 JB |
77 | /* Variables for blockinput.h: */ |
78 | ||
79 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 80 | int interrupt_input_blocked; |
9ac0d9e0 JB |
81 | |
82 | /* Nonzero means an input interrupt has arrived | |
83 | during the current critical section. */ | |
63927c41 | 84 | int interrupt_input_pending; |
9ac0d9e0 JB |
85 | |
86 | ||
437f6112 RS |
87 | /* File descriptor to use for input. */ |
88 | extern int input_fd; | |
284f4730 | 89 | |
e98a93eb | 90 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 91 | /* Make all keyboard buffers much bigger when using X windows. */ |
f019cded RS |
92 | #ifdef macintosh |
93 | /* But not too big (local data > 32K error) if on macintosh */ | |
94 | #define KBD_BUFFER_SIZE 512 | |
95 | #else | |
284f4730 | 96 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 97 | #endif |
284f4730 JB |
98 | #else /* No X-windows, character input */ |
99 | #define KBD_BUFFER_SIZE 256 | |
100 | #endif /* No X-windows */ | |
101 | ||
102 | /* Following definition copied from eval.c */ | |
103 | ||
104 | struct backtrace | |
105 | { | |
106 | struct backtrace *next; | |
107 | Lisp_Object *function; | |
108 | Lisp_Object *args; /* Points to vector of args. */ | |
109 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
110 | args points to slot holding list of | |
111 | unevalled args */ | |
112 | char evalargs; | |
113 | }; | |
114 | ||
c5fdd383 KH |
115 | #ifdef MULTI_KBOARD |
116 | KBOARD *initial_kboard; | |
117 | KBOARD *current_kboard; | |
118 | KBOARD *all_kboards; | |
1e8bd3da | 119 | int single_kboard; |
6c6083a9 | 120 | #else |
c5fdd383 | 121 | KBOARD the_only_kboard; |
6c6083a9 | 122 | #endif |
612b78ef | 123 | |
284f4730 JB |
124 | /* Non-nil disable property on a command means |
125 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 126 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
127 | |
128 | #define NUM_RECENT_KEYS (100) | |
129 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
130 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 131 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 132 | |
6569cc8d JB |
133 | /* Vector holding the key sequence that invoked the current command. |
134 | It is reused for each command, and it may be longer than the current | |
135 | sequence; this_command_key_count indicates how many elements | |
136 | actually mean something. | |
137 | It's easier to staticpro a single Lisp_Object than an array. */ | |
138 | Lisp_Object this_command_keys; | |
139 | int this_command_key_count; | |
284f4730 | 140 | |
7d18f9ae RS |
141 | /* This vector is used as a buffer to record the events that were actually read |
142 | by read_key_sequence. */ | |
143 | Lisp_Object raw_keybuf; | |
144 | int raw_keybuf_count; | |
145 | ||
146 | #define GROW_RAW_KEYBUF \ | |
147 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
148 | { \ | |
149 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
150 | Lisp_Object new; \ | |
151 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
152 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
153 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
154 | raw_keybuf = new; \ | |
155 | } | |
156 | ||
6321824f RS |
157 | /* Number of elements of this_command_keys |
158 | that precede this key sequence. */ | |
159 | int this_single_command_key_start; | |
160 | ||
71918b75 RS |
161 | /* Record values of this_command_key_count and echo_length () |
162 | before this command was read. */ | |
163 | static int before_command_key_count; | |
164 | static int before_command_echo_length; | |
165 | /* Values of before_command_key_count and before_command_echo_length | |
166 | saved by reset-this-command-lengths. */ | |
167 | static int before_command_key_count_1; | |
168 | static int before_command_echo_length_1; | |
169 | /* Flag set by reset-this-command-lengths, | |
170 | saying to reset the lengths when add_command_key is called. */ | |
171 | static int before_command_restore_flag; | |
172 | ||
284f4730 JB |
173 | extern int minbuf_level; |
174 | ||
a59b172a RS |
175 | extern int message_enable_multibyte; |
176 | ||
284f4730 JB |
177 | extern struct backtrace *backtrace_list; |
178 | ||
7ee32cda GM |
179 | /* If non-nil, the function that implements the display of help. |
180 | It's called with one argument, the help string to display. */ | |
181 | ||
182 | Lisp_Object Vshow_help_function; | |
183 | ||
284f4730 JB |
184 | /* Nonzero means do menu prompting. */ |
185 | static int menu_prompting; | |
186 | ||
187 | /* Character to see next line of menu prompt. */ | |
188 | static Lisp_Object menu_prompt_more_char; | |
189 | ||
190 | /* For longjmp to where kbd input is being done. */ | |
191 | static jmp_buf getcjmp; | |
192 | ||
193 | /* True while doing kbd input. */ | |
194 | int waiting_for_input; | |
195 | ||
196 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 197 | |
284f4730 JB |
198 | static int echoing; |
199 | ||
985f9f66 GM |
200 | /* Non-null means we can start echoing at the next input pause even |
201 | though there is something in the echo area. */ | |
202 | ||
203 | static struct kboard *ok_to_echo_at_next_pause; | |
204 | ||
205 | /* The kboard currently echoing, or null for none. Set in echo_now to | |
206 | the kboard echoing. Reset to 0 in cancel_echoing. If non-null, | |
207 | and a current echo area message exists, we know that it comes from | |
208 | echoing. */ | |
209 | ||
210 | static struct kboard *echo_kboard; | |
1fc93d49 | 211 | |
03361bcc RS |
212 | /* Nonzero means disregard local maps for the menu bar. */ |
213 | static int inhibit_local_menu_bar_menus; | |
214 | ||
80e4aa30 | 215 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
216 | int immediate_quit; |
217 | ||
fa90970d RS |
218 | /* The user's ERASE setting. */ |
219 | Lisp_Object Vtty_erase_char; | |
220 | ||
284f4730 | 221 | /* Character to recognize as the help char. */ |
7e85b935 | 222 | Lisp_Object Vhelp_char; |
284f4730 | 223 | |
ecb7cb34 KH |
224 | /* List of other event types to recognize as meaning "help". */ |
225 | Lisp_Object Vhelp_event_list; | |
226 | ||
284f4730 JB |
227 | /* Form to execute when help char is typed. */ |
228 | Lisp_Object Vhelp_form; | |
229 | ||
7e85b935 RS |
230 | /* Command to run when the help character follows a prefix key. */ |
231 | Lisp_Object Vprefix_help_command; | |
232 | ||
9f9c0e27 RS |
233 | /* List of items that should move to the end of the menu bar. */ |
234 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 235 | |
6526ab49 RS |
236 | /* Non-nil means show the equivalent key-binding for |
237 | any M-x command that has one. | |
238 | The value can be a length of time to show the message for. | |
239 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
240 | Lisp_Object Vsuggest_key_bindings; | |
241 | ||
284f4730 JB |
242 | /* Character that causes a quit. Normally C-g. |
243 | ||
244 | If we are running on an ordinary terminal, this must be an ordinary | |
245 | ASCII char, since we want to make it our interrupt character. | |
246 | ||
247 | If we are not running on an ordinary terminal, it still needs to be | |
248 | an ordinary ASCII char. This character needs to be recognized in | |
249 | the input interrupt handler. At this point, the keystroke is | |
250 | represented as a struct input_event, while the desired quit | |
251 | character is specified as a lispy event. The mapping from struct | |
252 | input_events to lispy events cannot run in an interrupt handler, | |
253 | and the reverse mapping is difficult for anything but ASCII | |
254 | keystrokes. | |
255 | ||
256 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
257 | ASCII character. */ | |
258 | int quit_char; | |
259 | ||
260 | extern Lisp_Object current_global_map; | |
261 | extern int minibuf_level; | |
262 | ||
9dd3131c RS |
263 | /* If non-nil, this is a map that overrides all other local maps. */ |
264 | Lisp_Object Voverriding_local_map; | |
265 | ||
d0a49716 RS |
266 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
267 | Lisp_Object Voverriding_local_map_menu_flag; | |
268 | ||
7f07d5ca RS |
269 | /* Keymap that defines special misc events that should |
270 | be processed immediately at a low level. */ | |
271 | Lisp_Object Vspecial_event_map; | |
272 | ||
284f4730 JB |
273 | /* Current depth in recursive edits. */ |
274 | int command_loop_level; | |
275 | ||
276 | /* Total number of times command_loop has read a key sequence. */ | |
277 | int num_input_keys; | |
278 | ||
279 | /* Last input character read as a command. */ | |
280 | Lisp_Object last_command_char; | |
281 | ||
7d6de002 RS |
282 | /* Last input character read as a command, not counting menus |
283 | reached by the mouse. */ | |
284 | Lisp_Object last_nonmenu_event; | |
285 | ||
284f4730 JB |
286 | /* Last input character read for any purpose. */ |
287 | Lisp_Object last_input_char; | |
288 | ||
dbc4e1c1 | 289 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 290 | Lisp_Object Vunread_command_events; |
284f4730 | 291 | |
7d18f9ae RS |
292 | /* If not Qnil, a list of objects to be read as subsequent command input |
293 | including input method processing. */ | |
294 | Lisp_Object Vunread_input_method_events; | |
295 | ||
296 | /* If not Qnil, a list of objects to be read as subsequent command input | |
297 | but NOT including input method processing. */ | |
298 | Lisp_Object Vunread_post_input_method_events; | |
299 | ||
86e5706b RS |
300 | /* If not -1, an event to be read as subsequent command input. */ |
301 | int unread_command_char; | |
302 | ||
cd21b839 JB |
303 | /* If not Qnil, this is a switch-frame event which we decided to put |
304 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 305 | next command input, after any unread_command_events. |
8f805655 JB |
306 | |
307 | read_key_sequence uses this to delay switch-frame events until the | |
308 | end of the key sequence; Fread_char uses it to put off switch-frame | |
309 | events until a non-ASCII event is acceptable as input. */ | |
310 | Lisp_Object unread_switch_frame; | |
cd21b839 | 311 | |
9fa4395d RS |
312 | /* A mask of extra modifier bits to put into every keyboard char. */ |
313 | int extra_keyboard_modifiers; | |
314 | ||
284f4730 JB |
315 | /* Char to use as prefix when a meta character is typed in. |
316 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
317 | ||
318 | Lisp_Object meta_prefix_char; | |
319 | ||
320 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
321 | static int last_non_minibuf_size; | |
322 | ||
06ef7355 | 323 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
324 | static Lisp_Object Vauto_save_timeout; |
325 | ||
326 | /* Total number of times read_char has returned. */ | |
4abfba1f | 327 | int num_input_events; |
284f4730 | 328 | |
51172b6d | 329 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 330 | int num_nonmacro_input_events; |
51172b6d | 331 | |
284f4730 JB |
332 | /* Auto-save automatically when this many characters have been typed |
333 | since the last time. */ | |
334 | ||
335 | static int auto_save_interval; | |
336 | ||
c43b1734 | 337 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
338 | |
339 | int last_auto_save; | |
340 | ||
284f4730 | 341 | /* The command being executed by the command loop. |
6c7178b9 KH |
342 | Commands may set this, and the value set will be copied into |
343 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
344 | Lisp_Object Vthis_command; |
345 | ||
346 | /* This is like Vthis_command, except that commands never set it. */ | |
347 | Lisp_Object real_this_command; | |
284f4730 | 348 | |
b453f72e KH |
349 | /* The value of point when the last command was executed. */ |
350 | int last_point_position; | |
351 | ||
047688cb RS |
352 | /* The buffer that was current when the last command was started. */ |
353 | Lisp_Object last_point_position_buffer; | |
354 | ||
4c52b668 KH |
355 | /* The frame in which the last input event occurred, or Qmacro if the |
356 | last event came from a macro. We use this to determine when to | |
357 | generate switch-frame events. This may be cleared by functions | |
358 | like Fselect_frame, to make sure that a switch-frame event is | |
359 | generated by the next character. */ | |
360 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
361 | |
362 | /* A user-visible version of the above, intended to allow users to | |
363 | figure out where the last event came from, if the event doesn't | |
364 | carry that information itself (i.e. if it was a character). */ | |
365 | Lisp_Object Vlast_event_frame; | |
366 | ||
1113d9db JB |
367 | /* The timestamp of the last input event we received from the X server. |
368 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
369 | unsigned long last_event_timestamp; |
370 | ||
371 | Lisp_Object Qself_insert_command; | |
372 | Lisp_Object Qforward_char; | |
373 | Lisp_Object Qbackward_char; | |
e58aa385 | 374 | Lisp_Object Qundefined; |
d925fb39 | 375 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
376 | |
377 | /* read_key_sequence stores here the command definition of the | |
378 | key sequence that it reads. */ | |
379 | Lisp_Object read_key_sequence_cmd; | |
380 | ||
381 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
382 | Lisp_Object Vtop_level; | |
383 | ||
384 | /* User-supplied string to translate input characters through. */ | |
385 | Lisp_Object Vkeyboard_translate_table; | |
386 | ||
387 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
388 | extern Lisp_Object Vfunction_key_map; | |
389 | ||
e0301c07 RS |
390 | /* Another keymap that maps key sequences into key sequences. |
391 | This one takes precedence over ordinary definitions. */ | |
392 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 393 | |
7d18f9ae RS |
394 | /* If non-nil, this implements the current input method. */ |
395 | Lisp_Object Vinput_method_function; | |
396 | Lisp_Object Qinput_method_function; | |
397 | ||
d5eecefb RS |
398 | /* When we call Vinput_method_function, |
399 | this holds the echo area message that was just erased. */ | |
400 | Lisp_Object Vinput_method_previous_message; | |
401 | ||
86e5706b RS |
402 | /* Non-nil means deactivate the mark at end of this command. */ |
403 | Lisp_Object Vdeactivate_mark; | |
404 | ||
48e416d4 RS |
405 | /* Menu bar specified in Lucid Emacs fashion. */ |
406 | ||
407 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
408 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
409 | ||
cdb9d665 RS |
410 | Lisp_Object Qecho_area_clear_hook; |
411 | ||
86e5706b | 412 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
413 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
414 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 415 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
416 | /* Hook run after a command if there's no more input soon. */ |
417 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
418 | ||
419 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
420 | int post_command_idle_delay; | |
86e5706b | 421 | |
8a792f3a RS |
422 | /* List of deferred actions to be performed at a later time. |
423 | The precise format isn't relevant here; we just check whether it is nil. */ | |
424 | Lisp_Object Vdeferred_action_list; | |
425 | ||
426 | /* Function to call to handle deferred actions, when there are any. */ | |
427 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 428 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 429 | |
d5eecefb RS |
430 | Lisp_Object Qinput_method_exit_on_first_char; |
431 | Lisp_Object Qinput_method_use_echo_area; | |
432 | ||
284f4730 JB |
433 | /* File in which we write all commands we read. */ |
434 | FILE *dribble; | |
435 | ||
436 | /* Nonzero if input is available. */ | |
437 | int input_pending; | |
438 | ||
b04904fb RS |
439 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
440 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
441 | ||
284f4730 JB |
442 | int meta_key; |
443 | ||
444 | extern char *pending_malloc_warning; | |
445 | ||
beecf6a1 KH |
446 | /* Circular buffer for pre-read keyboard input. */ |
447 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
448 | ||
449 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
450 | ||
451 | The interrupt-level event handlers will never enqueue an event on a | |
452 | frame which is not in Vframe_list, and once an event is dequeued, | |
453 | internal_last_event_frame or the event itself points to the frame. | |
454 | So that's all fine. | |
455 | ||
456 | But while the event is sitting in the queue, it's completely | |
457 | unprotected. Suppose the user types one command which will run for | |
458 | a while and then delete a frame, and then types another event at | |
459 | the frame that will be deleted, before the command gets around to | |
460 | it. Suppose there are no references to this frame elsewhere in | |
461 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
462 | have an event referring to a freed frame, which will crash Emacs | |
463 | when it is dequeued. | |
464 | ||
465 | Similar things happen when an event on a scroll bar is enqueued; the | |
466 | window may be deleted while the event is in the queue. | |
467 | ||
468 | So, we use this vector to protect the frame_or_window field in the | |
469 | event queue. That way, they'll be dequeued as dead frames or | |
470 | windows, but still valid lisp objects. | |
471 | ||
472 | If kbd_buffer[i].kind != no_event, then | |
473 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
474 | == kbd_buffer[i].frame_or_window. */ | |
475 | static Lisp_Object kbd_buffer_frame_or_window; | |
476 | ||
477 | /* Pointer to next available character in kbd_buffer. | |
478 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
479 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
480 | next available char is in kbd_buffer[0]. */ | |
481 | static struct input_event *kbd_fetch_ptr; | |
482 | ||
483 | /* Pointer to next place to store character in kbd_buffer. This | |
484 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
485 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 486 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
487 | |
488 | /* The above pair of variables forms a "queue empty" flag. When we | |
489 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
490 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
491 | there is input available iff the two pointers are not equal. | |
492 | ||
493 | Why not just have a flag set and cleared by the enqueuing and | |
494 | dequeuing functions? Such a flag could be screwed up by interrupts | |
495 | at inopportune times. */ | |
496 | ||
f3253854 | 497 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
498 | mouse moves, and motion events will appear in the input stream. |
499 | Otherwise, mouse motion is ignored. */ | |
500 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 501 | |
284f4730 JB |
502 | /* Symbols to head events. */ |
503 | Lisp_Object Qmouse_movement; | |
3c370943 | 504 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 505 | Lisp_Object Qswitch_frame; |
bbdc2092 | 506 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
507 | Lisp_Object Qiconify_frame; |
508 | Lisp_Object Qmake_frame_visible; | |
7ee32cda | 509 | Lisp_Object Qhelp_echo; |
cd21b839 | 510 | |
284f4730 JB |
511 | /* Symbols to denote kinds of events. */ |
512 | Lisp_Object Qfunction_key; | |
513 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
514 | #ifdef WINDOWSNT |
515 | Lisp_Object Qmouse_wheel; | |
1161d367 | 516 | Lisp_Object Qlanguage_change; |
07de30b9 | 517 | #endif |
a24dc617 | 518 | Lisp_Object Qdrag_n_drop; |
284f4730 | 519 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
520 | |
521 | /* Properties of event headers. */ | |
522 | Lisp_Object Qevent_kind; | |
88cb0656 | 523 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 524 | |
e8886a1d RS |
525 | /* menu item parts */ |
526 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 527 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
528 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
529 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
530 | extern Lisp_Object Vdefine_key_rebound_commands; |
531 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 532 | |
0a7f1fc0 JB |
533 | /* An event header symbol HEAD may have a property named |
534 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
535 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
536 | mask of modifiers applied to it. If present, this is used to help | |
537 | speed up parse_modifiers. */ | |
538 | Lisp_Object Qevent_symbol_element_mask; | |
539 | ||
540 | /* An unmodified event header BASE may have a property named | |
541 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
542 | modified versions of BASE. If present, this helps speed up | |
543 | apply_modifiers. */ | |
544 | Lisp_Object Qmodifier_cache; | |
545 | ||
5ec75a55 | 546 | /* Symbols to use for parts of windows. */ |
284f4730 | 547 | Lisp_Object Qmode_line; |
e5d77022 | 548 | Lisp_Object Qvertical_line; |
3c370943 | 549 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
550 | Lisp_Object Qmenu_bar; |
551 | ||
f4255cd1 JB |
552 | Lisp_Object recursive_edit_unwind (), command_loop (); |
553 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 554 | Lisp_Object Qextended_command_history; |
c04cbc3b | 555 | EMACS_TIME timer_check (); |
284f4730 | 556 | |
f4385381 RS |
557 | extern Lisp_Object Vhistory_length; |
558 | ||
2c834fb3 KH |
559 | extern char *x_get_keysym_name (); |
560 | ||
8eb4d8ef RS |
561 | static void record_menu_key (); |
562 | ||
f4eef8b4 RS |
563 | Lisp_Object Qpolling_period; |
564 | ||
d9d4c147 | 565 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
566 | Lisp_Object Vtimer_list; |
567 | ||
d9d4c147 KH |
568 | /* List of idle time timers. Appears in order of next scheduled event. */ |
569 | Lisp_Object Vtimer_idle_list; | |
570 | ||
87dd9b9b RS |
571 | /* Incremented whenever a timer is run. */ |
572 | int timers_run; | |
573 | ||
a9f16aa9 KH |
574 | extern Lisp_Object Vprint_level, Vprint_length; |
575 | ||
ffd56f97 JB |
576 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
577 | happens. */ | |
578 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
579 | |
580 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
581 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
582 | int interrupt_input; | |
583 | ||
584 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
585 | int interrupts_deferred; | |
586 | ||
87dd9b9b | 587 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
588 | int flow_control; |
589 | ||
284f4730 JB |
590 | /* Allow m- file to inhibit use of FIONREAD. */ |
591 | #ifdef BROKEN_FIONREAD | |
592 | #undef FIONREAD | |
593 | #endif | |
594 | ||
595 | /* We are unable to use interrupts if FIONREAD is not available, | |
596 | so flush SIGIO so we won't try. */ | |
597 | #ifndef FIONREAD | |
598 | #ifdef SIGIO | |
599 | #undef SIGIO | |
600 | #endif | |
601 | #endif | |
602 | ||
e98a93eb | 603 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 604 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 605 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
606 | #define POLL_FOR_INPUT |
607 | #endif | |
adf5cb9c KH |
608 | |
609 | /* After a command is executed, if point is moved into a region that | |
610 | has specific properties (e.g. composition, display), we adjust | |
611 | point to the boundary of the region. But, if a command sets this | |
612 | valiable to non-nil, we suppress this point adjustment. This | |
613 | variable is set to nil before reading a command. */ | |
614 | Lisp_Object Vdisable_point_adjustment; | |
615 | ||
616 | /* If non-nil, always disable point adjustment. */ | |
617 | Lisp_Object Vglobal_disable_point_adjustment; | |
618 | ||
284f4730 JB |
619 | \f |
620 | /* Global variable declarations. */ | |
621 | ||
622 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
623 | void (*keyboard_init_hook) (); | |
624 | ||
625 | static int read_avail_input (); | |
626 | static void get_input_pending (); | |
9fd7d808 | 627 | static int readable_events (); |
8150596a RS |
628 | static Lisp_Object read_char_x_menu_prompt (); |
629 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 630 | static Lisp_Object make_lispy_event (); |
514354e9 | 631 | #ifdef HAVE_MOUSE |
a612e298 | 632 | static Lisp_Object make_lispy_movement (); |
514354e9 | 633 | #endif |
a612e298 RS |
634 | static Lisp_Object modify_event_symbol (); |
635 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 636 | static int parse_solitary_modifier (); |
dfcf069d AS |
637 | static void save_getcjmp (); |
638 | static void restore_getcjmp (); | |
7ee32cda | 639 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
284f4730 JB |
640 | |
641 | /* > 0 if we are to echo keystrokes. */ | |
642 | static int echo_keystrokes; | |
643 | ||
8026024c KH |
644 | /* Nonzero means don't try to suspend even if the operating system seems |
645 | to support it. */ | |
646 | static int cannot_suspend; | |
647 | ||
284f4730 JB |
648 | #define min(a,b) ((a)<(b)?(a):(b)) |
649 | #define max(a,b) ((a)>(b)?(a):(b)) | |
650 | ||
651 | /* Install the string STR as the beginning of the string of echoing, | |
652 | so that it serves as a prompt for the next character. | |
653 | Also start echoing. */ | |
654 | ||
dfcf069d | 655 | void |
284f4730 JB |
656 | echo_prompt (str) |
657 | char *str; | |
658 | { | |
659 | int len = strlen (str); | |
7a80a6f6 | 660 | |
ba72822c KH |
661 | if (len > ECHOBUFSIZE - 4) |
662 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
663 | bcopy (str, current_kboard->echobuf, len); |
664 | current_kboard->echoptr = current_kboard->echobuf + len; | |
665 | *current_kboard->echoptr = '\0'; | |
284f4730 | 666 | |
c5fdd383 | 667 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 668 | |
3dbd9ee4 | 669 | echo_now (); |
284f4730 JB |
670 | } |
671 | ||
df0f2ba1 | 672 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
673 | C can be a character, which is printed prettily ("M-C-x" and all that |
674 | jazz), or a symbol, whose name is printed. */ | |
675 | ||
dfcf069d | 676 | void |
284f4730 JB |
677 | echo_char (c) |
678 | Lisp_Object c; | |
679 | { | |
680 | extern char *push_key_description (); | |
681 | ||
c5fdd383 | 682 | if (current_kboard->immediate_echo) |
284f4730 | 683 | { |
c5fdd383 | 684 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 685 | |
c5fdd383 | 686 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
687 | *ptr++ = ' '; |
688 | ||
689 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 690 | c = EVENT_HEAD (c); |
284f4730 | 691 | |
8c18cbfb | 692 | if (INTEGERP (c)) |
284f4730 | 693 | { |
2d0ffc9a KH |
694 | if (ptr - current_kboard->echobuf |
695 | > ECHOBUFSIZE - KEY_DESCRIPTION_SIZE) | |
284f4730 JB |
696 | return; |
697 | ||
cb5df6ae | 698 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 699 | } |
8c18cbfb | 700 | else if (SYMBOLP (c)) |
284f4730 JB |
701 | { |
702 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 703 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 704 | > ECHOBUFSIZE) |
284f4730 | 705 | return; |
fc932ac6 RS |
706 | bcopy (name->data, ptr, STRING_BYTES (name)); |
707 | ptr += STRING_BYTES (name); | |
284f4730 JB |
708 | } |
709 | ||
c5fdd383 | 710 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 711 | && help_char_p (c)) |
284f4730 JB |
712 | { |
713 | strcpy (ptr, " (Type ? for further options)"); | |
714 | ptr += strlen (ptr); | |
715 | } | |
716 | ||
717 | *ptr = 0; | |
c5fdd383 | 718 | current_kboard->echoptr = ptr; |
284f4730 | 719 | |
3dbd9ee4 | 720 | echo_now (); |
284f4730 JB |
721 | } |
722 | } | |
723 | ||
724 | /* Temporarily add a dash to the end of the echo string if it's not | |
725 | empty, so that it serves as a mini-prompt for the very next character. */ | |
726 | ||
dfcf069d | 727 | void |
284f4730 JB |
728 | echo_dash () |
729 | { | |
c5fdd383 KH |
730 | if (!current_kboard->immediate_echo |
731 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 732 | return; |
7a80a6f6 | 733 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
734 | if (current_kboard->echo_after_prompt |
735 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 736 | return; |
4bafa972 | 737 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 738 | if (current_kboard->echoptr == 0) |
4bafa972 | 739 | return; |
284f4730 JB |
740 | |
741 | /* Put a dash at the end of the buffer temporarily, | |
742 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
743 | current_kboard->echoptr[0] = '-'; |
744 | current_kboard->echoptr[1] = 0; | |
284f4730 | 745 | |
3dbd9ee4 | 746 | echo_now (); |
284f4730 JB |
747 | } |
748 | ||
749 | /* Display the current echo string, and begin echoing if not already | |
750 | doing so. */ | |
751 | ||
07a59269 | 752 | void |
3dbd9ee4 | 753 | echo_now () |
284f4730 | 754 | { |
c5fdd383 | 755 | if (!current_kboard->immediate_echo) |
284f4730 JB |
756 | { |
757 | int i; | |
c5fdd383 | 758 | current_kboard->immediate_echo = 1; |
284f4730 JB |
759 | |
760 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
761 | { |
762 | Lisp_Object c; | |
763 | c = XVECTOR (this_command_keys)->contents[i]; | |
764 | if (! (EVENT_HAS_PARAMETERS (c) | |
765 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
766 | echo_char (c); | |
767 | } | |
284f4730 JB |
768 | echo_dash (); |
769 | } | |
770 | ||
771 | echoing = 1; | |
985f9f66 | 772 | echo_kboard = current_kboard; |
301738ed RS |
773 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
774 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 JB |
775 | echoing = 0; |
776 | ||
777 | if (waiting_for_input && !NILP (Vquit_flag)) | |
778 | quit_throw_to_read_char (); | |
779 | } | |
780 | ||
781 | /* Turn off echoing, for the start of a new command. */ | |
782 | ||
dfcf069d | 783 | void |
284f4730 JB |
784 | cancel_echoing () |
785 | { | |
c5fdd383 KH |
786 | current_kboard->immediate_echo = 0; |
787 | current_kboard->echoptr = current_kboard->echobuf; | |
788 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 789 | ok_to_echo_at_next_pause = 0; |
985f9f66 | 790 | echo_kboard = 0; |
284f4730 JB |
791 | } |
792 | ||
793 | /* Return the length of the current echo string. */ | |
794 | ||
795 | static int | |
796 | echo_length () | |
797 | { | |
c5fdd383 | 798 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
799 | } |
800 | ||
801 | /* Truncate the current echo message to its first LEN chars. | |
802 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 803 | switches frames while entering a key sequence. */ |
284f4730 JB |
804 | |
805 | static void | |
806 | echo_truncate (len) | |
807 | int len; | |
808 | { | |
c5fdd383 KH |
809 | current_kboard->echobuf[len] = '\0'; |
810 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 811 | truncate_echo_area (len); |
284f4730 JB |
812 | } |
813 | ||
814 | \f | |
815 | /* Functions for manipulating this_command_keys. */ | |
816 | static void | |
817 | add_command_key (key) | |
818 | Lisp_Object key; | |
819 | { | |
6569cc8d JB |
820 | int size = XVECTOR (this_command_keys)->size; |
821 | ||
71918b75 RS |
822 | /* If reset-this-command-length was called recently, obey it now. |
823 | See the doc string of that function for an explanation of why. */ | |
824 | if (before_command_restore_flag) | |
825 | { | |
826 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
827 | if (this_command_key_count < this_single_command_key_start) |
828 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
829 | echo_truncate (before_command_echo_length_1); |
830 | before_command_restore_flag = 0; | |
831 | } | |
832 | ||
6569cc8d | 833 | if (this_command_key_count >= size) |
284f4730 | 834 | { |
9b8eb840 | 835 | Lisp_Object new_keys; |
6569cc8d | 836 | |
9b8eb840 | 837 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
838 | bcopy (XVECTOR (this_command_keys)->contents, |
839 | XVECTOR (new_keys)->contents, | |
8f805655 | 840 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
841 | |
842 | this_command_keys = new_keys; | |
284f4730 | 843 | } |
6569cc8d JB |
844 | |
845 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
846 | } |
847 | \f | |
848 | Lisp_Object | |
849 | recursive_edit_1 () | |
850 | { | |
851 | int count = specpdl_ptr - specpdl; | |
852 | Lisp_Object val; | |
853 | ||
854 | if (command_loop_level > 0) | |
855 | { | |
856 | specbind (Qstandard_output, Qt); | |
857 | specbind (Qstandard_input, Qt); | |
858 | } | |
859 | ||
860 | val = command_loop (); | |
861 | if (EQ (val, Qt)) | |
862 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
863 | /* Handle throw from read_minibuf when using minibuffer |
864 | while it's active but we're in another window. */ | |
865 | if (STRINGP (val)) | |
866 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 867 | |
cb5df6ae | 868 | return unbind_to (count, Qnil); |
284f4730 JB |
869 | } |
870 | ||
871 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 872 | |
07a59269 | 873 | void |
284f4730 JB |
874 | record_auto_save () |
875 | { | |
c43b1734 | 876 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 877 | } |
5846638c RS |
878 | |
879 | /* Make an auto save happen as soon as possible at command level. */ | |
880 | ||
dfcf069d | 881 | void |
5846638c RS |
882 | force_auto_save_soon () |
883 | { | |
884 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
885 | |
886 | record_asynch_buffer_change (); | |
5846638c | 887 | } |
284f4730 | 888 | \f |
284f4730 JB |
889 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
890 | "Invoke the editor command loop recursively.\n\ | |
891 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
892 | that tells this function to return.\n\ | |
893 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
894 | This function is called by the editor initialization to begin editing.") | |
895 | () | |
896 | { | |
897 | int count = specpdl_ptr - specpdl; | |
284f4730 JB |
898 | |
899 | command_loop_level++; | |
900 | update_mode_lines = 1; | |
901 | ||
902 | record_unwind_protect (recursive_edit_unwind, | |
903 | (command_loop_level | |
904 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
905 | ? Fcurrent_buffer () | |
906 | : Qnil); | |
907 | recursive_edit_1 (); | |
908 | return unbind_to (count, Qnil); | |
909 | } | |
910 | ||
911 | Lisp_Object | |
912 | recursive_edit_unwind (buffer) | |
913 | Lisp_Object buffer; | |
914 | { | |
915 | if (!NILP (buffer)) | |
916 | Fset_buffer (buffer); | |
917 | ||
918 | command_loop_level--; | |
919 | update_mode_lines = 1; | |
920 | return Qnil; | |
921 | } | |
922 | \f | |
604ccd1d | 923 | static void |
1e8bd3da | 924 | any_kboard_state () |
604ccd1d | 925 | { |
1e8bd3da RS |
926 | #ifdef MULTI_KBOARD |
927 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
928 | it will right away be read by read_key_sequence, | |
929 | and then if we do switch KBOARDS, it will go into the side | |
930 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 931 | if (CONSP (Vunread_command_events)) |
4524b161 | 932 | { |
c5fdd383 KH |
933 | current_kboard->kbd_queue |
934 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
935 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 936 | } |
604ccd1d | 937 | Vunread_command_events = Qnil; |
1e8bd3da RS |
938 | #endif |
939 | single_kboard = 0; | |
940 | #endif | |
604ccd1d | 941 | } |
1e8bd3da RS |
942 | |
943 | /* Switch to the single-kboard state, making current_kboard | |
944 | the only KBOARD from which further input is accepted. */ | |
945 | ||
946 | void | |
947 | single_kboard_state () | |
948 | { | |
949 | #ifdef MULTI_KBOARD | |
950 | single_kboard = 1; | |
604ccd1d | 951 | #endif |
1e8bd3da RS |
952 | } |
953 | ||
954 | /* Maintain a stack of kboards, so other parts of Emacs | |
955 | can switch temporarily to the kboard of a given frame | |
956 | and then revert to the previous status. */ | |
957 | ||
958 | struct kboard_stack | |
959 | { | |
960 | KBOARD *kboard; | |
961 | struct kboard_stack *next; | |
962 | }; | |
963 | ||
964 | static struct kboard_stack *kboard_stack; | |
965 | ||
966 | void | |
967 | push_frame_kboard (f) | |
968 | FRAME_PTR f; | |
969 | { | |
ab48365b | 970 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
971 | struct kboard_stack *p |
972 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
973 | ||
974 | p->next = kboard_stack; | |
975 | p->kboard = current_kboard; | |
976 | kboard_stack = p; | |
977 | ||
978 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 979 | #endif |
1e8bd3da RS |
980 | } |
981 | ||
982 | void | |
983 | pop_frame_kboard () | |
984 | { | |
ab48365b | 985 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
986 | struct kboard_stack *p = kboard_stack; |
987 | current_kboard = p->kboard; | |
988 | kboard_stack = p->next; | |
989 | xfree (p); | |
ab48365b | 990 | #endif |
1e8bd3da RS |
991 | } |
992 | \f | |
993 | /* Handle errors that are not handled at inner levels | |
994 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 995 | |
284f4730 JB |
996 | Lisp_Object |
997 | cmd_error (data) | |
998 | Lisp_Object data; | |
a1341f75 | 999 | { |
a9f16aa9 | 1000 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1001 | char macroerror[50]; |
1002 | ||
1003 | if (!NILP (executing_macro)) | |
1004 | { | |
1005 | if (executing_macro_iterations == 1) | |
1006 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1007 | else | |
1008 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1009 | executing_macro_iterations); | |
1010 | } | |
1011 | else | |
1012 | *macroerror = 0; | |
a9f16aa9 | 1013 | |
a1341f75 RS |
1014 | Vstandard_output = Qt; |
1015 | Vstandard_input = Qt; | |
1016 | Vexecuting_macro = Qnil; | |
9f58e89e | 1017 | executing_macro = Qnil; |
d8bcf58e | 1018 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1019 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1020 | cancel_echoing (); |
a9f16aa9 KH |
1021 | |
1022 | /* Avoid unquittable loop if data contains a circular list. */ | |
1023 | old_level = Vprint_level; | |
1024 | old_length = Vprint_length; | |
0c04a67e RS |
1025 | XSETFASTINT (Vprint_level, 10); |
1026 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1027 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1028 | Vprint_level = old_level; |
1029 | Vprint_length = old_length; | |
a1341f75 RS |
1030 | |
1031 | Vquit_flag = Qnil; | |
1032 | ||
1033 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1034 | #ifdef MULTI_KBOARD |
1e8bd3da | 1035 | any_kboard_state (); |
ff4b06d3 | 1036 | #endif |
a1341f75 RS |
1037 | |
1038 | return make_number (0); | |
1039 | } | |
1040 | ||
301738ed RS |
1041 | /* Take actions on handling an error. DATA is the data that describes |
1042 | the error. | |
1043 | ||
1044 | CONTEXT is a C-string containing ASCII characters only which | |
1045 | describes the context in which the error happened. If we need to | |
1046 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1047 | string. */ | |
1048 | ||
07a59269 | 1049 | void |
a1341f75 RS |
1050 | cmd_error_internal (data, context) |
1051 | Lisp_Object data; | |
1052 | char *context; | |
284f4730 | 1053 | { |
284f4730 | 1054 | Lisp_Object stream; |
7ee32cda | 1055 | int kill_emacs_p = 0; |
788f89eb | 1056 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1057 | |
1058 | Vquit_flag = Qnil; | |
1059 | Vinhibit_quit = Qt; | |
985f9f66 | 1060 | clear_message (1, 0); |
284f4730 | 1061 | |
ff11dfa1 | 1062 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1063 | yet, or we're not interactive, it's best to dump this message out |
1064 | to stderr and exit. */ | |
788f89eb | 1065 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1066 | /* This is the case of the frame dumped with Emacs, when we're |
1067 | running under a window system. */ | |
1068 | || (!NILP (Vwindow_system) | |
1069 | && !inhibit_window_system | |
788f89eb | 1070 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1071 | || noninteractive) |
7ee32cda GM |
1072 | { |
1073 | stream = Qexternal_debugging_output; | |
1074 | kill_emacs_p = 1; | |
1075 | } | |
284f4730 JB |
1076 | else |
1077 | { | |
1078 | Fdiscard_input (); | |
1079 | bitch_at_user (); | |
1080 | stream = Qt; | |
1081 | } | |
1082 | ||
a1341f75 RS |
1083 | if (context != 0) |
1084 | write_string_1 (context, -1, stream); | |
1085 | ||
22a51344 | 1086 | print_error_message (data, stream); |
284f4730 | 1087 | |
ff11dfa1 | 1088 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1089 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1090 | if (kill_emacs_p) |
284f4730 JB |
1091 | { |
1092 | Fterpri (stream); | |
1093 | Fkill_emacs (make_number (-1)); | |
1094 | } | |
284f4730 JB |
1095 | } |
1096 | \f | |
1097 | Lisp_Object command_loop_1 (); | |
1098 | Lisp_Object command_loop_2 (); | |
1099 | Lisp_Object top_level_1 (); | |
1100 | ||
1101 | /* Entry to editor-command-loop. | |
1102 | This level has the catches for exiting/returning to editor command loop. | |
1103 | It returns nil to exit recursive edit, t to abort it. */ | |
1104 | ||
1105 | Lisp_Object | |
1106 | command_loop () | |
1107 | { | |
1108 | if (command_loop_level > 0 || minibuf_level > 0) | |
1109 | { | |
07ba902e RS |
1110 | Lisp_Object val; |
1111 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1112 | executing_macro = Qnil; |
1113 | return val; | |
284f4730 JB |
1114 | } |
1115 | else | |
1116 | while (1) | |
1117 | { | |
1118 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1119 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1120 | executing_macro = Qnil; |
df0f2ba1 | 1121 | |
284f4730 JB |
1122 | /* End of file in -batch run causes exit here. */ |
1123 | if (noninteractive) | |
1124 | Fkill_emacs (Qt); | |
1125 | } | |
1126 | } | |
1127 | ||
1128 | /* Here we catch errors in execution of commands within the | |
1129 | editing loop, and reenter the editing loop. | |
1130 | When there is an error, cmd_error runs and returns a non-nil | |
1131 | value to us. A value of nil means that cmd_loop_1 itself | |
1132 | returned due to end of file (or end of kbd macro). */ | |
1133 | ||
1134 | Lisp_Object | |
1135 | command_loop_2 () | |
1136 | { | |
1137 | register Lisp_Object val; | |
1138 | ||
1139 | do | |
1140 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1141 | while (!NILP (val)); | |
1142 | ||
1143 | return Qnil; | |
1144 | } | |
1145 | ||
1146 | Lisp_Object | |
1147 | top_level_2 () | |
1148 | { | |
1149 | return Feval (Vtop_level); | |
1150 | } | |
1151 | ||
1152 | Lisp_Object | |
1153 | top_level_1 () | |
1154 | { | |
1155 | /* On entry to the outer level, run the startup file */ | |
1156 | if (!NILP (Vtop_level)) | |
1157 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1158 | else if (!NILP (Vpurify_flag)) | |
1159 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1160 | else | |
1161 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1162 | return Qnil; | |
1163 | } | |
1164 | ||
1165 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1166 | "Exit all recursive editing levels.") | |
1167 | () | |
1168 | { | |
1169 | Fthrow (Qtop_level, Qnil); | |
1170 | } | |
1171 | ||
1172 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1173 | "Exit from the innermost recursive edit or minibuffer.") | |
1174 | () | |
1175 | { | |
1176 | if (command_loop_level > 0 || minibuf_level > 0) | |
1177 | Fthrow (Qexit, Qnil); | |
1178 | ||
1179 | error ("No recursive edit is in progress"); | |
1180 | } | |
1181 | ||
1182 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1183 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1184 | () | |
1185 | { | |
1186 | if (command_loop_level > 0 || minibuf_level > 0) | |
1187 | Fthrow (Qexit, Qt); | |
1188 | ||
1189 | error ("No recursive edit is in progress"); | |
1190 | } | |
1191 | \f | |
1192 | /* This is the actual command reading loop, | |
1193 | sans error-handling encapsulation. */ | |
1194 | ||
1195 | Lisp_Object Fcommand_execute (); | |
1196 | static int read_key_sequence (); | |
68f297c5 | 1197 | void safe_run_hooks (); |
adf5cb9c | 1198 | static void adjust_point_for_property (); |
284f4730 JB |
1199 | |
1200 | Lisp_Object | |
1201 | command_loop_1 () | |
1202 | { | |
03cee6ae GM |
1203 | Lisp_Object cmd; |
1204 | int lose; | |
284f4730 JB |
1205 | int nonundocount; |
1206 | Lisp_Object keybuf[30]; | |
1207 | int i; | |
284f4730 | 1208 | int no_direct; |
86e5706b RS |
1209 | int prev_modiff; |
1210 | struct buffer *prev_buffer; | |
c5fdd383 | 1211 | #ifdef MULTI_KBOARD |
1e8bd3da | 1212 | int was_locked = single_kboard; |
bded54dd | 1213 | #endif |
284f4730 | 1214 | |
d9b641bb | 1215 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1216 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1217 | Vdeactivate_mark = Qnil; |
284f4730 | 1218 | waiting_for_input = 0; |
df0f2ba1 | 1219 | cancel_echoing (); |
284f4730 | 1220 | |
284f4730 | 1221 | nonundocount = 0; |
284f4730 | 1222 | this_command_key_count = 0; |
6321824f | 1223 | this_single_command_key_start = 0; |
284f4730 | 1224 | |
a612e298 RS |
1225 | /* Make sure this hook runs after commands that get errors and |
1226 | throw to top level. */ | |
a98ea3f9 RS |
1227 | /* Note that the value cell will never directly contain nil |
1228 | if the symbol is a local variable. */ | |
e98a93eb | 1229 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1230 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1231 | |
8f12e41d GM |
1232 | /* If displaying a message, resize the echo area window to fit |
1233 | that message's size exactly. */ | |
1234 | if (!NILP (echo_area_buffer[0])) | |
1235 | resize_echo_area_axactly (); | |
1236 | ||
8a792f3a RS |
1237 | if (!NILP (Vdeferred_action_list)) |
1238 | call0 (Vdeferred_action_function); | |
1239 | ||
e98a93eb | 1240 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1241 | { |
1242 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1243 | && NILP (Vunread_input_method_events) |
1244 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1245 | && NILP (Vexecuting_macro) |
41365083 | 1246 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1247 | safe_run_hooks (Qpost_command_idle_hook); |
1248 | } | |
1249 | ||
51d5a2c9 | 1250 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1251 | current_kboard->Vlast_command = Vthis_command; |
1252 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1253 | |
284f4730 JB |
1254 | while (1) |
1255 | { | |
788f89eb | 1256 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1257 | Fkill_emacs (Qnil); |
1258 | ||
284f4730 JB |
1259 | /* Make sure the current window's buffer is selected. */ |
1260 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1261 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1262 | ||
1263 | /* Display any malloc warning that just came out. Use while because | |
1264 | displaying one warning can cause another. */ | |
1265 | ||
1266 | while (pending_malloc_warning) | |
1267 | display_malloc_warning (); | |
1268 | ||
1269 | no_direct = 0; | |
1270 | ||
86e5706b RS |
1271 | Vdeactivate_mark = Qnil; |
1272 | ||
284f4730 | 1273 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1274 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1275 | |
7ee32cda | 1276 | if (minibuf_level |
985f9f66 | 1277 | && !NILP (echo_area_buffer[0]) |
93127526 | 1278 | && EQ (minibuf_window, echo_area_window)) |
284f4730 | 1279 | { |
f1bed6d8 RS |
1280 | /* Bind inhibit-quit to t so that C-g gets read in |
1281 | rather than quitting back to the minibuffer. */ | |
1282 | int count = specpdl_ptr - specpdl; | |
1283 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1284 | |
db08707d | 1285 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1286 | /* Clear the echo area. */ |
301738ed | 1287 | message2 (0, 0, 0); |
cdb9d665 | 1288 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1289 | |
db08707d RS |
1290 | unbind_to (count, Qnil); |
1291 | ||
e6aa7813 | 1292 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1293 | if (!NILP (Vquit_flag)) |
1294 | { | |
1295 | Vquit_flag = Qnil; | |
24597608 | 1296 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1297 | } |
1298 | } | |
1299 | ||
1300 | #ifdef C_ALLOCA | |
ff4b06d3 | 1301 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1302 | /* Since we can free the most stuff here. */ |
1303 | #endif /* C_ALLOCA */ | |
1304 | ||
8f805655 | 1305 | #if 0 |
8f805655 JB |
1306 | /* Select the frame that the last event came from. Usually, |
1307 | switch-frame events will take care of this, but if some lisp | |
1308 | code swallows a switch-frame event, we'll fix things up here. | |
1309 | Is this a good idea? */ | |
8c18cbfb | 1310 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1311 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1312 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1313 | #endif |
48e416d4 RS |
1314 | /* If it has changed current-menubar from previous value, |
1315 | really recompute the menubar from the value. */ | |
a646e520 RS |
1316 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1317 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1318 | call0 (Qrecompute_lucid_menubar); |
1319 | ||
71918b75 RS |
1320 | before_command_key_count = this_command_key_count; |
1321 | before_command_echo_length = echo_length (); | |
1322 | ||
d5eecefb RS |
1323 | Vthis_command = Qnil; |
1324 | real_this_command = Qnil; | |
d7437ef6 | 1325 | |
8f805655 | 1326 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1327 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1328 | Qnil, 0, 1, 1); |
8f805655 | 1329 | |
6fac1409 | 1330 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1331 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1332 | Fkill_emacs (Qnil); |
6fac1409 RS |
1333 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1334 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1335 | ||
8f805655 JB |
1336 | ++num_input_keys; |
1337 | ||
284f4730 JB |
1338 | /* Now we have read a key sequence of length I, |
1339 | or else I is 0 and we found end of file. */ | |
1340 | ||
1341 | if (i == 0) /* End of file -- happens only in */ | |
1342 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1343 | /* -1 means read_key_sequence got a menu that was rejected. |
1344 | Just loop around and read another command. */ | |
1345 | if (i == -1) | |
1346 | { | |
1347 | cancel_echoing (); | |
1348 | this_command_key_count = 0; | |
6321824f | 1349 | this_single_command_key_start = 0; |
ff4b06d3 | 1350 | goto finalize; |
dcc408a0 | 1351 | } |
284f4730 | 1352 | |
284f4730 JB |
1353 | last_command_char = keybuf[i - 1]; |
1354 | ||
75c0b143 RS |
1355 | /* If the previous command tried to force a specific window-start, |
1356 | forget about that, in case this command moves point far away | |
c422836d KH |
1357 | from that position. But also throw away beg_unchanged and |
1358 | end_unchanged information in that case, so that redisplay will | |
1359 | update the whole window properly. */ | |
1360 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1361 | { | |
9351ebd0 | 1362 | struct buffer *b; |
c422836d | 1363 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1364 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1365 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1366 | } |
75c0b143 | 1367 | |
284f4730 JB |
1368 | cmd = read_key_sequence_cmd; |
1369 | if (!NILP (Vexecuting_macro)) | |
1370 | { | |
1371 | if (!NILP (Vquit_flag)) | |
1372 | { | |
1373 | Vexecuting_macro = Qt; | |
1374 | QUIT; /* Make some noise. */ | |
1375 | /* Will return since macro now empty. */ | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1380 | cases identified below. */ |
86e5706b RS |
1381 | prev_buffer = current_buffer; |
1382 | prev_modiff = MODIFF; | |
8746da95 | 1383 | last_point_position = PT; |
18cd2eeb | 1384 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1385 | |
adf5cb9c KH |
1386 | /* By default, we adjust point to a boundary of a region that |
1387 | has such a property that should be treated intangible | |
1388 | (e.g. composition, display). But, some commands will set | |
1389 | this variable differently. */ | |
1390 | Vdisable_point_adjustment = Qnil; | |
1391 | ||
284f4730 JB |
1392 | /* Execute the command. */ |
1393 | ||
d5eecefb RS |
1394 | Vthis_command = cmd; |
1395 | real_this_command = cmd; | |
a98ea3f9 RS |
1396 | /* Note that the value cell will never directly contain nil |
1397 | if the symbol is a local variable. */ | |
e98a93eb | 1398 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1399 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1400 | |
d5eecefb | 1401 | if (NILP (Vthis_command)) |
284f4730 JB |
1402 | { |
1403 | /* nil means key is undefined. */ | |
1404 | bitch_at_user (); | |
c5fdd383 | 1405 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1406 | update_mode_lines = 1; |
d8bcf58e | 1407 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1408 | } |
1409 | else | |
1410 | { | |
d8bcf58e | 1411 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1412 | { |
75045dcb RS |
1413 | /* In case we jump to directly_done. */ |
1414 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1415 | ||
284f4730 JB |
1416 | /* Recognize some common commands in common situations and |
1417 | do them directly. */ | |
d5eecefb | 1418 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1419 | { |
51ad8a68 | 1420 | struct Lisp_Char_Table *dp |
284f4730 | 1421 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1422 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1423 | SET_PT (PT + 1); |
0f7a8fee | 1424 | if ((dp |
82ba47d7 | 1425 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1426 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1427 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1428 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1429 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1430 | /* To extract the case of continuation on |
1431 | wide-column characters. */ | |
8458ede6 | 1432 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1433 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1434 | >= MODIFF) | |
598ba4c7 RS |
1435 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1436 | >= OVERLAY_MODIFF) | |
284f4730 | 1437 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1438 | == PT - 1) |
284f4730 JB |
1439 | && !windows_or_buffers_changed |
1440 | && EQ (current_buffer->selective_display, Qnil) | |
1441 | && !detect_input_pending () | |
962ae636 | 1442 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1443 | && NILP (Vexecuting_macro)) |
e35b6123 | 1444 | direct_output_forward_char (1); |
284f4730 JB |
1445 | goto directly_done; |
1446 | } | |
d5eecefb | 1447 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1448 | { |
51ad8a68 | 1449 | struct Lisp_Char_Table *dp |
284f4730 | 1450 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1451 | SET_PT (PT - 1); |
aaf35234 | 1452 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1453 | if ((dp |
ca873d73 | 1454 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1455 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1456 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1457 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1458 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1459 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1460 | >= MODIFF) | |
598ba4c7 RS |
1461 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1462 | >= OVERLAY_MODIFF) | |
284f4730 | 1463 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1464 | == PT + 1) |
284f4730 JB |
1465 | && !windows_or_buffers_changed |
1466 | && EQ (current_buffer->selective_display, Qnil) | |
1467 | && !detect_input_pending () | |
962ae636 | 1468 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1469 | && NILP (Vexecuting_macro)) |
e35b6123 | 1470 | direct_output_forward_char (-1); |
284f4730 JB |
1471 | goto directly_done; |
1472 | } | |
d5eecefb | 1473 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1474 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1475 | && INTEGERP (last_command_char)) |
284f4730 | 1476 | { |
89599794 | 1477 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1478 | int value; |
fc9cce4e RS |
1479 | if (NILP (Vexecuting_macro) |
1480 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1481 | { |
1482 | if (!nonundocount || nonundocount >= 20) | |
1483 | { | |
1484 | Fundo_boundary (); | |
1485 | nonundocount = 0; | |
1486 | } | |
1487 | nonundocount++; | |
1488 | } | |
7ee32cda | 1489 | |
fc9cce4e RS |
1490 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1491 | < MODIFF) | |
598ba4c7 RS |
1492 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1493 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1494 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1495 | != PT) | |
4c61f38e | 1496 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1497 | || windows_or_buffers_changed |
1498 | || !EQ (current_buffer->selective_display, Qnil) | |
1499 | || detect_input_pending () | |
962ae636 | 1500 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1501 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1502 | |
fc9cce4e | 1503 | value = internal_self_insert (c, 0); |
7ee32cda | 1504 | |
fc9cce4e RS |
1505 | if (value == 2) |
1506 | nonundocount = 0; | |
1507 | ||
7ee32cda GM |
1508 | /* VALUE == 1 when AFTER-CHANGE functions are |
1509 | installed which is the case most of the time | |
1510 | because FONT-LOCK installs one. */ | |
1511 | if (!lose && !value) | |
e35b6123 | 1512 | direct_output_for_insert (c); |
284f4730 JB |
1513 | goto directly_done; |
1514 | } | |
1515 | } | |
1516 | ||
1517 | /* Here for a command that isn't executed directly */ | |
1518 | ||
7ee32cda GM |
1519 | #ifdef HAVE_X_WINDOWS |
1520 | if (display_busy_cursor_p) | |
1521 | { | |
1522 | if (inhibit_busy_cursor != 2) | |
1523 | inhibit_busy_cursor = 0; | |
1524 | if (!inhibit_busy_cursor) | |
1525 | Fx_show_busy_cursor (); | |
1526 | } | |
1527 | #endif | |
1528 | ||
284f4730 | 1529 | nonundocount = 0; |
d8bcf58e | 1530 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1531 | Fundo_boundary (); |
d5eecefb | 1532 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
284f4730 | 1533 | } |
a764a753 | 1534 | directly_done: ; |
75045dcb | 1535 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1536 | |
84ee6048 RS |
1537 | /* Note that the value cell will never directly contain nil |
1538 | if the symbol is a local variable. */ | |
1539 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1540 | safe_run_hooks (Qpost_command_hook); | |
1541 | ||
8f12e41d GM |
1542 | /* If displaying a message, resize the echo area window to fit |
1543 | that message's size exactly. */ | |
1544 | if (!NILP (echo_area_buffer[0])) | |
1545 | resize_echo_area_axactly (); | |
1546 | ||
84ee6048 RS |
1547 | if (!NILP (Vdeferred_action_list)) |
1548 | safe_run_hooks (Qdeferred_action_function); | |
1549 | ||
1550 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1551 | { | |
1552 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1553 | && NILP (Vunread_input_method_events) |
1554 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1555 | && NILP (Vexecuting_macro) |
1556 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1557 | safe_run_hooks (Qpost_command_idle_hook); | |
1558 | } | |
1559 | ||
284f4730 | 1560 | /* If there is a prefix argument, |
6c7178b9 KH |
1561 | 1) We don't want Vlast_command to be ``universal-argument'' |
1562 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1563 | 2) we want to leave echoing on so that the prefix will be |
1564 | echoed as part of this key sequence, so don't call | |
1565 | cancel_echoing, and | |
1566 | 3) we want to leave this_command_key_count non-zero, so that | |
1567 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1568 | not echo it a second time. |
1569 | ||
1570 | If the command didn't actually create a prefix arg, | |
1571 | but is merely a frame event that is transparent to prefix args, | |
1572 | then the above doesn't apply. */ | |
1573 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1574 | { |
d5eecefb RS |
1575 | current_kboard->Vlast_command = Vthis_command; |
1576 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1577 | cancel_echoing (); |
1578 | this_command_key_count = 0; | |
6321824f | 1579 | this_single_command_key_start = 0; |
284f4730 | 1580 | } |
86e5706b | 1581 | |
88ce066e | 1582 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1583 | { |
1584 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1585 | { | |
1586 | current_buffer->mark_active = Qnil; | |
1587 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1588 | } | |
1589 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1590 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1591 | } | |
ff4b06d3 KH |
1592 | |
1593 | finalize: | |
adf5cb9c KH |
1594 | |
1595 | if (current_buffer == prev_buffer | |
1596 | && last_point_position != PT | |
1597 | && NILP (Vdisable_point_adjustment) | |
1598 | && NILP (Vglobal_disable_point_adjustment)) | |
1599 | adjust_point_for_property (last_point_position); | |
1600 | ||
ff4b06d3 KH |
1601 | /* Install chars successfully executed in kbd macro. */ |
1602 | ||
d8bcf58e KH |
1603 | if (!NILP (current_kboard->defining_kbd_macro) |
1604 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1605 | finalize_kbd_macro_chars (); |
1606 | ||
c5fdd383 | 1607 | #ifdef MULTI_KBOARD |
604ccd1d | 1608 | if (!was_locked) |
1e8bd3da | 1609 | any_kboard_state (); |
ff4b06d3 | 1610 | #endif |
284f4730 JB |
1611 | } |
1612 | } | |
1c9784c9 | 1613 | |
adf5cb9c KH |
1614 | extern Lisp_Object Qcomposition, Qdisplay; |
1615 | ||
1616 | /* Adjust point to a boundary of a region that has such a property | |
1617 | that should be treated intangible. For the moment, we check | |
1618 | `composition' and `display' property. LAST_PT is the last position | |
1619 | of point. */ | |
1620 | ||
1621 | static void | |
1622 | adjust_point_for_property (last_pt) | |
1623 | int last_pt; | |
1624 | { | |
1625 | int start, end; | |
1626 | Lisp_Object val; | |
1627 | int check_composition = 1, check_display = 1; | |
1628 | ||
1629 | while (check_composition || check_display) | |
1630 | { | |
1631 | if (check_composition | |
1632 | && PT > BEGV && PT < ZV | |
1633 | && get_property_and_range (PT, Qcomposition, &val, &start, &end, Qnil) | |
1634 | && COMPOSITION_VALID_P (start, end, val) | |
1635 | && start < PT && end > PT | |
1636 | && (last_pt <= start || last_pt >= end)) | |
1637 | { | |
1638 | if (PT < last_pt) | |
1639 | SET_PT (start); | |
1640 | else | |
1641 | SET_PT (end); | |
1642 | check_display = 1; | |
1643 | } | |
1644 | check_composition = 0; | |
1645 | if (check_display | |
1646 | && PT > BEGV && PT < ZV | |
1647 | && get_property_and_range (PT, Qdisplay, &val, &start, &end, Qnil) | |
1648 | && start < PT && end > PT | |
1649 | && (last_pt <= start || last_pt >= end)) | |
1650 | { | |
1651 | if (PT < last_pt) | |
1652 | SET_PT (start); | |
1653 | else | |
1654 | SET_PT (end); | |
1655 | check_composition = 1; | |
1656 | } | |
1657 | check_display = 0; | |
1658 | } | |
1659 | } | |
1660 | ||
0bc3db2b RS |
1661 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1662 | ||
1663 | static Lisp_Object | |
1664 | safe_run_hooks_1 (hook) | |
1665 | Lisp_Object hook; | |
1666 | { | |
1667 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1668 | } | |
1669 | ||
1670 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1671 | ||
1672 | static Lisp_Object | |
1673 | safe_run_hooks_error (data) | |
1674 | Lisp_Object data; | |
1675 | { | |
1676 | Fset (Vinhibit_quit, Qnil); | |
1677 | } | |
1678 | ||
1c9784c9 KH |
1679 | /* If we get an error while running the hook, cause the hook variable |
1680 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1681 | to mysteriously evaporate. */ | |
0bc3db2b | 1682 | |
68f297c5 | 1683 | void |
1c9784c9 | 1684 | safe_run_hooks (hook) |
a98ea3f9 | 1685 | Lisp_Object hook; |
1c9784c9 KH |
1686 | { |
1687 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1688 | specbind (Qinhibit_quit, hook); |
1689 | ||
e702932d | 1690 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1691 | |
1692 | unbind_to (count, Qnil); | |
1693 | } | |
8a9f5d3c | 1694 | |
284f4730 | 1695 | \f |
8a9f5d3c GM |
1696 | /* Number of seconds between polling for input. This is a Lisp |
1697 | variable that can be bound. */ | |
1698 | ||
284f4730 JB |
1699 | int polling_period; |
1700 | ||
eb8c3be9 | 1701 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1702 | |
284f4730 JB |
1703 | int poll_suppress_count; |
1704 | ||
8a9f5d3c GM |
1705 | /* Asynchronous timer for polling. */ |
1706 | ||
1707 | struct atimer *poll_timer; | |
1708 | ||
284f4730 | 1709 | |
36922b18 RS |
1710 | #ifdef POLL_FOR_INPUT |
1711 | ||
8a9f5d3c GM |
1712 | /* Poll for input, so what we catch a C-g if it comes in. This |
1713 | function is called from x_make_frame_visible, see comment | |
1714 | there. */ | |
284f4730 | 1715 | |
8a9f5d3c GM |
1716 | void |
1717 | poll_for_input_1 () | |
284f4730 | 1718 | { |
9ac0d9e0 JB |
1719 | if (interrupt_input_blocked == 0 |
1720 | && !waiting_for_input) | |
1721 | read_avail_input (0); | |
284f4730 JB |
1722 | } |
1723 | ||
8a9f5d3c GM |
1724 | /* Timer callback function for poll_timer. TIMER is equal to |
1725 | poll_timer. */ | |
1726 | ||
1727 | void | |
1728 | poll_for_input (timer) | |
1729 | struct atimer *timer; | |
1730 | { | |
1731 | if (poll_suppress_count == 0) | |
1732 | poll_for_input_1 (); | |
1733 | } | |
1734 | ||
1735 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1736 | |
1737 | /* Begin signals to poll for input, if they are appropriate. | |
1738 | This function is called unconditionally from various places. */ | |
1739 | ||
07a59269 | 1740 | void |
284f4730 JB |
1741 | start_polling () |
1742 | { | |
1743 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1744 | if (read_socket_hook && !interrupt_input) |
284f4730 | 1745 | { |
8a9f5d3c GM |
1746 | /* Turn alarm handling on unconditionally. It might have |
1747 | been turned off in process.c. */ | |
1748 | turn_on_atimers (1); | |
1749 | ||
1750 | /* If poll timer doesn't exist, are we need one with | |
1751 | a different interval, start a new one. */ | |
1752 | if (poll_timer == NULL | |
1753 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1754 | { |
8a9f5d3c GM |
1755 | EMACS_TIME interval; |
1756 | ||
1757 | if (poll_timer) | |
1758 | cancel_atimer (poll_timer); | |
1759 | ||
1760 | EMACS_SET_SECS_USECS (interval, polling_period, 0); | |
1761 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1762 | poll_for_input, NULL); | |
284f4730 | 1763 | } |
8a9f5d3c GM |
1764 | |
1765 | /* Let the timer's callback function poll for input | |
1766 | if this becomes zero. */ | |
1767 | --poll_suppress_count; | |
284f4730 JB |
1768 | } |
1769 | #endif | |
1770 | } | |
1771 | ||
1d3195db RS |
1772 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1773 | ||
1774 | int | |
1775 | input_polling_used () | |
1776 | { | |
1777 | #ifdef POLL_FOR_INPUT | |
1778 | return read_socket_hook && !interrupt_input; | |
1779 | #else | |
1780 | return 0; | |
1781 | #endif | |
1782 | } | |
1783 | ||
284f4730 JB |
1784 | /* Turn off polling. */ |
1785 | ||
07a59269 | 1786 | void |
284f4730 JB |
1787 | stop_polling () |
1788 | { | |
1789 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1790 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 1791 | ++poll_suppress_count; |
284f4730 JB |
1792 | #endif |
1793 | } | |
fe8aeef3 RS |
1794 | |
1795 | /* Set the value of poll_suppress_count to COUNT | |
1796 | and start or stop polling accordingly. */ | |
1797 | ||
1798 | void | |
1799 | set_poll_suppress_count (count) | |
1800 | int count; | |
1801 | { | |
1802 | #ifdef POLL_FOR_INPUT | |
1803 | if (count == 0 && poll_suppress_count != 0) | |
1804 | { | |
1805 | poll_suppress_count = 1; | |
1806 | start_polling (); | |
1807 | } | |
1808 | else if (count != 0 && poll_suppress_count == 0) | |
1809 | { | |
1810 | stop_polling (); | |
1811 | } | |
1812 | poll_suppress_count = count; | |
1813 | #endif | |
1814 | } | |
f4eef8b4 | 1815 | |
d0a57728 RS |
1816 | /* Bind polling_period to a value at least N. |
1817 | But don't decrease it. */ | |
1818 | ||
07a59269 | 1819 | void |
f4eef8b4 RS |
1820 | bind_polling_period (n) |
1821 | int n; | |
1822 | { | |
1823 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1824 | int new = polling_period; |
1825 | ||
1826 | if (n > new) | |
1827 | new = n; | |
1828 | ||
6fe007f7 | 1829 | stop_other_atimers (poll_timer); |
f4eef8b4 | 1830 | stop_polling (); |
d0a57728 RS |
1831 | specbind (Qpolling_period, make_number (new)); |
1832 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1833 | start_polling (); |
1834 | #endif | |
1835 | } | |
284f4730 | 1836 | \f |
6da3dd3a RS |
1837 | /* Apply the control modifier to CHARACTER. */ |
1838 | ||
faf5e407 JB |
1839 | int |
1840 | make_ctrl_char (c) | |
1841 | int c; | |
1842 | { | |
d205953b JB |
1843 | /* Save the upper bits here. */ |
1844 | int upper = c & ~0177; | |
1845 | ||
1846 | c &= 0177; | |
1847 | ||
1848 | /* Everything in the columns containing the upper-case letters | |
1849 | denotes a control character. */ | |
1850 | if (c >= 0100 && c < 0140) | |
1851 | { | |
1852 | int oc = c; | |
1853 | c &= ~0140; | |
1854 | /* Set the shift modifier for a control char | |
1855 | made from a shifted letter. But only for letters! */ | |
1856 | if (oc >= 'A' && oc <= 'Z') | |
1857 | c |= shift_modifier; | |
1858 | } | |
1859 | ||
1860 | /* The lower-case letters denote control characters too. */ | |
1861 | else if (c >= 'a' && c <= 'z') | |
1862 | c &= ~0140; | |
1863 | ||
1864 | /* Include the bits for control and shift | |
1865 | only if the basic ASCII code can't indicate them. */ | |
1866 | else if (c >= ' ') | |
1867 | c |= ctrl_modifier; | |
1868 | ||
1869 | /* Replace the high bits. */ | |
1870 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1871 | |
1872 | return c; | |
1873 | } | |
1874 | ||
1875 | ||
1876 | \f | |
284f4730 JB |
1877 | /* Input of single characters from keyboard */ |
1878 | ||
1879 | Lisp_Object print_help (); | |
1880 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1881 | static void record_char (); |
284f4730 | 1882 | |
c5fdd383 KH |
1883 | #ifdef MULTI_KBOARD |
1884 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1885 | #endif |
beecf6a1 | 1886 | |
284f4730 JB |
1887 | /* read a character from the keyboard; call the redisplay if needed */ |
1888 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1889 | -1 means do not do redisplay, but do do autosaving. | |
1890 | 1 means do both. */ | |
1891 | ||
7d6de002 RS |
1892 | /* The arguments MAPS and NMAPS are for menu prompting. |
1893 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1894 | ||
1895 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
1896 | the first event of a key sequence (or not reading a key sequence). |
1897 | If PREV_EVENT is t, that is a "magic" value that says | |
1898 | not to run input methods, but in other respects to act as if | |
1899 | not reading a key sequence. | |
7d6de002 | 1900 | |
83d68044 | 1901 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1902 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1903 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1904 | |
1905 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1906 | |
284f4730 | 1907 | Lisp_Object |
7d6de002 | 1908 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1909 | int commandflag; |
7d6de002 RS |
1910 | int nmaps; |
1911 | Lisp_Object *maps; | |
1912 | Lisp_Object prev_event; | |
1913 | int *used_mouse_menu; | |
284f4730 | 1914 | { |
7c3bc944 | 1915 | Lisp_Object c; |
284f4730 | 1916 | int count; |
410d4de9 | 1917 | jmp_buf local_getcjmp; |
284f4730 | 1918 | jmp_buf save_jump; |
a1341f75 | 1919 | int key_already_recorded = 0; |
017c7cb6 | 1920 | Lisp_Object tem, save; |
7ee32cda | 1921 | Lisp_Object previous_echo_area_message; |
e4fe371d | 1922 | Lisp_Object also_record; |
7d18f9ae | 1923 | int reread; |
d5eecefb | 1924 | struct gcpro gcpro1, gcpro2; |
7c3bc944 | 1925 | |
e4fe371d | 1926 | also_record = Qnil; |
284f4730 | 1927 | |
71918b75 RS |
1928 | before_command_key_count = this_command_key_count; |
1929 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1930 | c = Qnil; |
7ee32cda | 1931 | previous_echo_area_message = Qnil; |
71918b75 | 1932 | |
7ee32cda | 1933 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 1934 | |
7f07d5ca RS |
1935 | retry: |
1936 | ||
7d18f9ae RS |
1937 | reread = 0; |
1938 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 1939 | { |
7539e11f | 1940 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 1941 | Vunread_post_input_method_events |
7539e11f | 1942 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 1943 | |
2479e91e RS |
1944 | /* Undo what read_char_x_menu_prompt did when it unread |
1945 | additional keys returned by Fx_popup_menu. */ | |
1946 | if (CONSP (c) | |
7539e11f KR |
1947 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1948 | && NILP (XCDR (c))) | |
1949 | c = XCAR (c); | |
2479e91e | 1950 | |
7d18f9ae RS |
1951 | reread = 1; |
1952 | goto reread_first; | |
284f4730 JB |
1953 | } |
1954 | ||
86e5706b RS |
1955 | if (unread_command_char != -1) |
1956 | { | |
18cd2eeb | 1957 | XSETINT (c, unread_command_char); |
86e5706b RS |
1958 | unread_command_char = -1; |
1959 | ||
7d18f9ae RS |
1960 | reread = 1; |
1961 | goto reread_first; | |
1962 | } | |
1963 | ||
1964 | if (CONSP (Vunread_command_events)) | |
1965 | { | |
7539e11f KR |
1966 | c = XCAR (Vunread_command_events); |
1967 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
1968 | |
1969 | /* Undo what read_char_x_menu_prompt did when it unread | |
1970 | additional keys returned by Fx_popup_menu. */ | |
1971 | if (CONSP (c) | |
7539e11f KR |
1972 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1973 | && NILP (XCDR (c))) | |
1974 | c = XCAR (c); | |
7d18f9ae RS |
1975 | |
1976 | reread = 1; | |
1977 | goto reread_for_input_method; | |
1978 | } | |
1979 | ||
1980 | if (CONSP (Vunread_input_method_events)) | |
1981 | { | |
7539e11f KR |
1982 | c = XCAR (Vunread_input_method_events); |
1983 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
1984 | |
1985 | /* Undo what read_char_x_menu_prompt did when it unread | |
1986 | additional keys returned by Fx_popup_menu. */ | |
1987 | if (CONSP (c) | |
7539e11f KR |
1988 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1989 | && NILP (XCDR (c))) | |
1990 | c = XCAR (c); | |
7d18f9ae RS |
1991 | reread = 1; |
1992 | goto reread_for_input_method; | |
86e5706b RS |
1993 | } |
1994 | ||
71918b75 RS |
1995 | /* If there is no function key translated before |
1996 | reset-this-command-lengths takes effect, forget about it. */ | |
1997 | before_command_restore_flag = 0; | |
1998 | ||
284f4730 JB |
1999 | if (!NILP (Vexecuting_macro)) |
2000 | { | |
fce33686 JB |
2001 | /* We set this to Qmacro; since that's not a frame, nobody will |
2002 | try to switch frames on us, and the selected window will | |
2003 | remain unchanged. | |
2004 | ||
2005 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2006 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2007 | real event came from. Normally, a switch-frame event selects |
2008 | internal_last_event_frame after each command is read, but | |
2009 | events read from a macro should never cause a new frame to be | |
2010 | selected. */ | |
4c52b668 | 2011 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2012 | |
663258f2 JB |
2013 | /* Exit the macro if we are at the end. |
2014 | Also, some things replace the macro with t | |
2015 | to force an early exit. */ | |
2016 | if (EQ (Vexecuting_macro, Qt) | |
2017 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2018 | { |
18cd2eeb | 2019 | XSETINT (c, -1); |
7c3bc944 | 2020 | RETURN_UNGCPRO (c); |
284f4730 | 2021 | } |
df0f2ba1 | 2022 | |
284f4730 | 2023 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2024 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2025 | && (XINT (c) & 0x80)) |
bb9e9bed | 2026 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2027 | |
284f4730 JB |
2028 | executing_macro_index++; |
2029 | ||
2030 | goto from_macro; | |
2031 | } | |
2032 | ||
cd21b839 JB |
2033 | if (!NILP (unread_switch_frame)) |
2034 | { | |
2035 | c = unread_switch_frame; | |
2036 | unread_switch_frame = Qnil; | |
2037 | ||
2038 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2039 | again, so we do not set `reread'. */ |
f4255cd1 | 2040 | goto reread_first; |
cd21b839 JB |
2041 | } |
2042 | ||
adc1d5c8 | 2043 | /* if redisplay was requested */ |
6e4e64a8 RS |
2044 | if (commandflag >= 0) |
2045 | { | |
adc1d5c8 RS |
2046 | /* If there is pending input, process any events which are not |
2047 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2048 | if (input_pending |
2049 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2050 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2051 | |
adc1d5c8 RS |
2052 | /* Redisplay if no pending input. */ |
2053 | while (!input_pending) | |
2054 | { | |
2055 | redisplay (); | |
2056 | ||
2057 | if (!input_pending) | |
2058 | /* Normal case: no input arrived during redisplay. */ | |
2059 | break; | |
2060 | ||
2061 | /* Input arrived and pre-empted redisplay. | |
2062 | Process any events which are not user-visible. */ | |
2063 | swallow_events (0); | |
2064 | /* If that cleared input_pending, try again to redisplay. */ | |
2065 | } | |
6e4e64a8 | 2066 | } |
e9bf89a0 | 2067 | |
410d4de9 | 2068 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
985f9f66 GM |
2069 | if (/* There is a current message. */ |
2070 | !NILP (echo_area_buffer[0]) | |
2071 | /* And we're not echoing from this kboard. */ | |
2072 | && echo_kboard != current_kboard | |
2073 | /* And it's either not ok to echo (ok_to_echo == NULL), or the | |
2074 | last char echoed was from a different kboard. */ | |
2075 | && ok_to_echo_at_next_pause != echo_kboard) | |
7ee32cda | 2076 | cancel_echoing (); |
410d4de9 RS |
2077 | else |
2078 | /* If already echoing, continue. */ | |
2079 | echo_dash (); | |
284f4730 | 2080 | |
410d4de9 RS |
2081 | /* Try reading a character via menu prompting in the minibuf. |
2082 | Try this before the sit-for, because the sit-for | |
2083 | would do the wrong thing if we are supposed to do | |
2084 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2085 | after a mouse event so don't try a minibuf menu. */ | |
2086 | c = Qnil; | |
2087 | if (nmaps > 0 && INTERACTIVE | |
2088 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2089 | /* Don't bring up a menu if we already have another event. */ | |
2090 | && NILP (Vunread_command_events) | |
2091 | && unread_command_char < 0 | |
4ec4ed6a | 2092 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2093 | { |
2094 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2095 | if (! NILP (c)) | |
2096 | { | |
2097 | key_already_recorded = 1; | |
2098 | goto non_reread_1; | |
2099 | } | |
2100 | } | |
284f4730 | 2101 | |
410d4de9 RS |
2102 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2103 | We will do that below, temporarily for short sections of code, | |
2104 | when appropriate. local_getcjmp must be in effect | |
2105 | around any call to sit_for or kbd_buffer_get_event; | |
2106 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2107 | |
410d4de9 | 2108 | if (_setjmp (local_getcjmp)) |
284f4730 | 2109 | { |
18cd2eeb | 2110 | XSETINT (c, quit_char); |
788f89eb | 2111 | internal_last_event_frame = selected_frame; |
4c52b668 | 2112 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2113 | /* If we report the quit char as an event, |
2114 | don't do so more than once. */ | |
2115 | if (!NILP (Vinhibit_quit)) | |
2116 | Vquit_flag = Qnil; | |
284f4730 | 2117 | |
c5fdd383 | 2118 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2119 | { |
788f89eb | 2120 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2121 | if (kb != current_kboard) |
df0f2ba1 | 2122 | { |
c5fdd383 | 2123 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2124 | /* We shouldn't get here if we were in single-kboard mode! */ |
2125 | if (single_kboard) | |
df0f2ba1 KH |
2126 | abort (); |
2127 | while (CONSP (*tailp)) | |
7539e11f | 2128 | tailp = &XCDR (*tailp); |
df0f2ba1 KH |
2129 | if (!NILP (*tailp)) |
2130 | abort (); | |
2131 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2132 | kb->kbd_queue_has_data = 1; |
2133 | current_kboard = kb; | |
ef6661f7 RS |
2134 | /* This is going to exit from read_char |
2135 | so we had better get rid of this frame's stuff. */ | |
2136 | UNGCPRO; | |
c5fdd383 | 2137 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2138 | } |
2139 | } | |
2140 | #endif | |
284f4730 JB |
2141 | goto non_reread; |
2142 | } | |
2143 | ||
d9d4c147 KH |
2144 | timer_start_idle (); |
2145 | ||
284f4730 JB |
2146 | /* If in middle of key sequence and minibuffer not active, |
2147 | start echoing if enough time elapses. */ | |
410d4de9 | 2148 | |
7ee32cda GM |
2149 | if (minibuf_level == 0 |
2150 | && !current_kboard->immediate_echo | |
6c6083a9 | 2151 | && this_command_key_count > 0 |
27203ead | 2152 | && ! noninteractive |
284f4730 | 2153 | && echo_keystrokes > 0 |
985f9f66 GM |
2154 | && (/* No message. */ |
2155 | NILP (echo_area_buffer[0]) | |
2156 | /* Or empty message. */ | |
2157 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2158 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2159 | /* Or already echoing from same kboard. */ | |
2160 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2161 | /* Or not echoing before and echoing allowed. */ | |
2162 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2163 | { |
2164 | Lisp_Object tem0; | |
985f9f66 | 2165 | |
7d6de002 RS |
2166 | /* After a mouse event, start echoing right away. |
2167 | This is because we are probably about to display a menu, | |
2168 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2169 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2170 | echo_now (); |
7d6de002 RS |
2171 | else |
2172 | { | |
410d4de9 RS |
2173 | save_getcjmp (save_jump); |
2174 | restore_getcjmp (local_getcjmp); | |
41365083 | 2175 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 2176 | restore_getcjmp (save_jump); |
303b5b3f RS |
2177 | if (EQ (tem0, Qt) |
2178 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2179 | echo_now (); |
7d6de002 | 2180 | } |
284f4730 JB |
2181 | } |
2182 | ||
410d4de9 | 2183 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2184 | |
2185 | if (commandflag != 0 | |
2186 | && auto_save_interval > 0 | |
c43b1734 | 2187 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2188 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2189 | { |
284f4730 | 2190 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2191 | /* Hooks can actually change some buffers in auto save. */ |
2192 | redisplay (); | |
284f4730 JB |
2193 | } |
2194 | ||
8150596a | 2195 | /* Try reading using an X menu. |
24597608 RS |
2196 | This is never confused with reading using the minibuf |
2197 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2198 | does not pass on any keymaps. */ | |
410d4de9 | 2199 | |
24597608 | 2200 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2201 | && !NILP (prev_event) |
2202 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2203 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2204 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2205 | /* Don't bring up a menu if we already have another event. */ |
2206 | && NILP (Vunread_command_events) | |
b8556aee | 2207 | && unread_command_char < 0) |
8eb4d8ef RS |
2208 | { |
2209 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2210 | ||
2211 | /* Now that we have read an event, Emacs is not idle. */ | |
2212 | timer_stop_idle (); | |
2213 | ||
7c3bc944 | 2214 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2215 | } |
7d6de002 | 2216 | |
410d4de9 RS |
2217 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2218 | ||
26c1639e | 2219 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2220 | { |
2221 | int delay_level, buffer_size; | |
2222 | ||
410d4de9 RS |
2223 | /* Slow down auto saves logarithmically in size of current buffer, |
2224 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2225 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2226 | last_non_minibuf_size = Z - BEG; | |
2227 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2228 | delay_level = 0; | |
2229 | while (buffer_size > 64) | |
2230 | delay_level++, buffer_size -= buffer_size >> 2; | |
2231 | if (delay_level < 4) delay_level = 4; | |
2232 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2233 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2234 | ||
2235 | /* Auto save if enough time goes by without input. */ | |
2236 | if (commandflag != 0 | |
c43b1734 | 2237 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2238 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2239 | && XINT (Vauto_save_timeout) > 0) |
2240 | { | |
2241 | Lisp_Object tem0; | |
410d4de9 RS |
2242 | |
2243 | save_getcjmp (save_jump); | |
2244 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2245 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2246 | 0, 1, 1, 0); |
410d4de9 RS |
2247 | restore_getcjmp (save_jump); |
2248 | ||
303b5b3f RS |
2249 | if (EQ (tem0, Qt) |
2250 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2251 | { |
7d6de002 | 2252 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2253 | |
2254 | /* If we have auto-saved and there is still no input | |
2255 | available, garbage collect if there has been enough | |
2256 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2257 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2258 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2259 | Fgarbage_collect (); |
410d4de9 | 2260 | |
ef8fd672 | 2261 | redisplay (); |
7d6de002 RS |
2262 | } |
2263 | } | |
2264 | } | |
284f4730 | 2265 | |
303b5b3f RS |
2266 | /* If this has become non-nil here, it has been set by a timer |
2267 | or sentinel or filter. */ | |
2268 | if (CONSP (Vunread_command_events)) | |
2269 | { | |
7539e11f KR |
2270 | c = XCAR (Vunread_command_events); |
2271 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2272 | } |
2273 | ||
410d4de9 RS |
2274 | /* Read something from current KBOARD's side queue, if possible. */ |
2275 | ||
beecf6a1 | 2276 | if (NILP (c)) |
1e12dd87 | 2277 | { |
c5fdd383 | 2278 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2279 | { |
c5fdd383 | 2280 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2281 | abort (); |
7539e11f | 2282 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2283 | current_kboard->kbd_queue |
7539e11f | 2284 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2285 | if (NILP (current_kboard->kbd_queue)) |
2286 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2287 | input_pending = readable_events (0); |
4c52b668 KH |
2288 | if (EVENT_HAS_PARAMETERS (c) |
2289 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2290 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2291 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2292 | } |
1e8bd3da RS |
2293 | } |
2294 | ||
c5fdd383 | 2295 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2296 | /* If current_kboard's side queue is empty check the other kboards. |
2297 | If one of them has data that we have not yet seen here, | |
2298 | switch to it and process the data waiting for it. | |
2299 | ||
2300 | Note: if the events queued up for another kboard | |
2301 | have already been seen here, and therefore are not a complete command, | |
2302 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2303 | That's to avoid an infinite loop switching between kboards here. */ | |
2304 | if (NILP (c) && !single_kboard) | |
2305 | { | |
2306 | KBOARD *kb; | |
2307 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2308 | if (kb->kbd_queue_has_data) | |
2309 | { | |
2310 | current_kboard = kb; | |
ef6661f7 RS |
2311 | /* This is going to exit from read_char |
2312 | so we had better get rid of this frame's stuff. */ | |
2313 | UNGCPRO; | |
1e8bd3da RS |
2314 | longjmp (wrong_kboard_jmpbuf, 1); |
2315 | } | |
2316 | } | |
df0f2ba1 KH |
2317 | #endif |
2318 | ||
410d4de9 RS |
2319 | wrong_kboard: |
2320 | ||
2321 | stop_polling (); | |
2322 | ||
1e8bd3da RS |
2323 | /* Finally, we read from the main queue, |
2324 | and if that gives us something we can't use yet, we put it on the | |
2325 | appropriate side queue and try again. */ | |
410d4de9 | 2326 | |
1e8bd3da RS |
2327 | if (NILP (c)) |
2328 | { | |
2329 | KBOARD *kb; | |
2330 | ||
1e8bd3da | 2331 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2332 | save_getcjmp (save_jump); |
2333 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2334 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2335 | restore_getcjmp (save_jump); |
2336 | ||
c5fdd383 | 2337 | #ifdef MULTI_KBOARD |
410d4de9 | 2338 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2339 | { |
2340 | Lisp_Object *tailp = &kb->kbd_queue; | |
2341 | while (CONSP (*tailp)) | |
7539e11f | 2342 | tailp = &XCDR (*tailp); |
1e8bd3da RS |
2343 | if (!NILP (*tailp)) |
2344 | abort (); | |
2345 | *tailp = Fcons (c, Qnil); | |
2346 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2347 | c = Qnil; |
1e8bd3da RS |
2348 | if (single_kboard) |
2349 | goto wrong_kboard; | |
2350 | current_kboard = kb; | |
ef6661f7 RS |
2351 | /* This is going to exit from read_char |
2352 | so we had better get rid of this frame's stuff. */ | |
2353 | UNGCPRO; | |
1e8bd3da | 2354 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2355 | } |
1e8bd3da | 2356 | #endif |
beecf6a1 | 2357 | } |
1e8bd3da | 2358 | |
284f4730 | 2359 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2360 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2361 | Fkill_emacs (make_number (1)); |
2362 | ||
8c18cbfb | 2363 | if (INTEGERP (c)) |
80645119 JB |
2364 | { |
2365 | /* Add in any extra modifiers, where appropriate. */ | |
2366 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2367 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2368 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2369 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2370 | |
2371 | /* Transfer any other modifier bits directly from | |
2372 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2373 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2374 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2375 | } |
9fa4395d | 2376 | |
284f4730 JB |
2377 | non_reread: |
2378 | ||
2fb9049e | 2379 | timer_stop_idle (); |
d9d4c147 | 2380 | |
284f4730 JB |
2381 | start_polling (); |
2382 | ||
410d4de9 RS |
2383 | if (NILP (c)) |
2384 | { | |
2385 | if (commandflag >= 0 | |
4ec4ed6a | 2386 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2387 | redisplay (); |
2388 | ||
2389 | goto wrong_kboard; | |
2390 | } | |
2391 | ||
2392 | non_reread_1: | |
2393 | ||
dfd11da7 | 2394 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2395 | so don't show them to the user. |
2396 | Also, don't record a key if we already did. */ | |
2397 | if (BUFFERP (c) || key_already_recorded) | |
2398 | RETURN_UNGCPRO (c); | |
a1341f75 | 2399 | |
7f07d5ca RS |
2400 | /* Process special events within read_char |
2401 | and loop around to read another event. */ | |
017c7cb6 RS |
2402 | save = Vquit_flag; |
2403 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2404 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2405 | c, 0, 0), 1); | |
017c7cb6 | 2406 | Vquit_flag = save; |
7f07d5ca RS |
2407 | |
2408 | if (!NILP (tem)) | |
2409 | { | |
ba8dfba8 RS |
2410 | int was_locked = single_kboard; |
2411 | ||
7f07d5ca | 2412 | last_input_char = c; |
158f7532 | 2413 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2414 | |
2415 | /* Resume allowing input from any kboard, if that was true before. */ | |
2416 | if (!was_locked) | |
2417 | any_kboard_state (); | |
2418 | ||
7f07d5ca RS |
2419 | goto retry; |
2420 | } | |
2421 | ||
284f4730 | 2422 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2423 | if (INTEGERP (c)) |
284f4730 JB |
2424 | { |
2425 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2426 | if (XINT (c) == -1) |
7c3bc944 | 2427 | RETURN_UNGCPRO (c); |
284f4730 | 2428 | |
301738ed RS |
2429 | if ((STRINGP (Vkeyboard_translate_table) |
2430 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2431 | || (VECTORP (Vkeyboard_translate_table) | |
2432 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2433 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2434 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2435 | { |
2436 | Lisp_Object d; | |
2437 | d = Faref (Vkeyboard_translate_table, c); | |
2438 | /* nil in keyboard-translate-table means no translation. */ | |
2439 | if (!NILP (d)) | |
2440 | c = d; | |
2441 | } | |
284f4730 JB |
2442 | } |
2443 | ||
e4fe371d RS |
2444 | /* If this event is a mouse click in the menu bar, |
2445 | return just menu-bar for now. Modify the mouse click event | |
2446 | so we won't do this twice, then queue it up. */ | |
2447 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2448 | && CONSP (XCDR (c)) |
e4fe371d | 2449 | && CONSP (EVENT_START (c)) |
7539e11f | 2450 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2451 | { |
e4fe371d | 2452 | Lisp_Object posn; |
284f4730 | 2453 | |
e4fe371d RS |
2454 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2455 | /* Handle menu-bar events: | |
2456 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2457 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2458 | { |
2459 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2460 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2461 | |
e4fe371d RS |
2462 | also_record = c; |
2463 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2464 | c = posn; | |
284f4730 | 2465 | } |
284f4730 JB |
2466 | } |
2467 | ||
7d18f9ae RS |
2468 | /* Store these characters into recent_keys, the dribble file if any, |
2469 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2470 | record_char (c); |
2471 | if (! NILP (also_record)) | |
2472 | record_char (also_record); | |
51172b6d | 2473 | |
d5eecefb RS |
2474 | /* Wipe the echo area. |
2475 | But first, if we are about to use an input method, | |
2476 | save the echo area contents for it to refer to. */ | |
2477 | if (INTEGERP (c) | |
2478 | && ! NILP (Vinput_method_function) | |
2479 | && (unsigned) XINT (c) >= ' ' | |
2480 | && (unsigned) XINT (c) < 127) | |
7ee32cda GM |
2481 | { |
2482 | previous_echo_area_message = Fcurrent_message (); | |
2483 | Vinput_method_previous_message = previous_echo_area_message; | |
2484 | } | |
d5eecefb RS |
2485 | |
2486 | /* Now wipe the echo area. */ | |
985f9f66 | 2487 | if (!NILP (echo_area_buffer[0])) |
d5eecefb | 2488 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2489 | clear_message (1, 0); |
d5eecefb | 2490 | |
7d18f9ae | 2491 | reread_for_input_method: |
284f4730 | 2492 | from_macro: |
7d18f9ae | 2493 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2494 | if (INTEGERP (c) |
2495 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2496 | /* Don't run the input method within a key sequence, |
2497 | after the first event of the key sequence. */ | |
2498 | && NILP (prev_event) | |
d5eecefb RS |
2499 | && (unsigned) XINT (c) >= ' ' |
2500 | && (unsigned) XINT (c) < 127) | |
2501 | { | |
2502 | Lisp_Object keys; | |
6e5742a0 | 2503 | int key_count; |
d5eecefb | 2504 | struct gcpro gcpro1; |
b638f328 | 2505 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2506 | |
6e5742a0 RS |
2507 | /* Save the echo status. */ |
2508 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2509 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2510 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2511 | ||
2512 | if (before_command_restore_flag) | |
2513 | { | |
2514 | this_command_key_count = before_command_key_count_1; | |
2515 | if (this_command_key_count < this_single_command_key_start) | |
2516 | this_single_command_key_start = this_command_key_count; | |
2517 | echo_truncate (before_command_echo_length_1); | |
2518 | before_command_restore_flag = 0; | |
2519 | } | |
2520 | ||
2521 | /* Save the this_command_keys status. */ | |
2522 | key_count = this_command_key_count; | |
2523 | ||
2524 | if (key_count > 0) | |
2525 | keys = Fcopy_sequence (this_command_keys); | |
2526 | else | |
2527 | keys = Qnil; | |
d5eecefb | 2528 | GCPRO1 (keys); |
6e5742a0 RS |
2529 | |
2530 | /* Clear out this_command_keys. */ | |
2531 | this_command_key_count = 0; | |
2532 | ||
2533 | /* Now wipe the echo area. */ | |
985f9f66 | 2534 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2535 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2536 | clear_message (1, 0); |
6e5742a0 RS |
2537 | echo_truncate (0); |
2538 | ||
b638f328 RS |
2539 | /* If we are not reading a key sequence, |
2540 | never use the echo area. */ | |
2541 | if (maps == 0) | |
2542 | { | |
b638f328 RS |
2543 | specbind (Qinput_method_use_echo_area, Qt); |
2544 | } | |
2545 | ||
6e5742a0 | 2546 | /* Call the input method. */ |
d5eecefb | 2547 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2548 | |
2549 | tem = unbind_to (count, tem); | |
2550 | ||
6e5742a0 RS |
2551 | /* Restore the saved echoing state |
2552 | and this_command_keys state. */ | |
2553 | this_command_key_count = key_count; | |
2554 | if (key_count > 0) | |
2555 | this_command_keys = keys; | |
2556 | ||
2557 | cancel_echoing (); | |
2558 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2559 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2560 | if (saved_immediate_echo) | |
2561 | echo_now (); | |
2562 | ||
d5eecefb | 2563 | UNGCPRO; |
6e5742a0 | 2564 | |
d5eecefb RS |
2565 | /* The input method can return no events. */ |
2566 | if (! CONSP (tem)) | |
7d18f9ae | 2567 | { |
d5eecefb | 2568 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2569 | if (! NILP (previous_echo_area_message)) |
2570 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2571 | goto retry; |
7d18f9ae | 2572 | } |
d5eecefb | 2573 | /* It returned one event or more. */ |
7539e11f | 2574 | c = XCAR (tem); |
d5eecefb | 2575 | Vunread_post_input_method_events |
7539e11f | 2576 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2577 | } |
7c3bc944 | 2578 | |
7d18f9ae | 2579 | reread_first: |
284f4730 | 2580 | |
7ee32cda GM |
2581 | /* Display help if not echoing. */ |
2582 | if (CONSP (c) | |
2583 | && EQ (XCAR (c), Qhelp_echo)) | |
2584 | { | |
2585 | Lisp_Object msg = XCDR (XCDR (c)); | |
2586 | ||
2587 | if (!NILP (Vshow_help_function)) | |
2588 | call1 (Vshow_help_function, msg); | |
2589 | else if (!echoing && !MINI_WINDOW_P (XWINDOW (selected_window))) | |
2590 | { | |
2591 | if (STRINGP (msg)) | |
2592 | message3_nolog (msg, XSTRING (msg)->size, STRING_MULTIBYTE (msg)); | |
2593 | else | |
2594 | message (0); | |
2595 | } | |
2596 | ||
2597 | goto retry; | |
2598 | } | |
2599 | ||
7d18f9ae | 2600 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2601 | { |
7d18f9ae RS |
2602 | before_command_key_count = this_command_key_count; |
2603 | before_command_echo_length = echo_length (); | |
2604 | ||
2605 | /* Don't echo mouse motion events. */ | |
2606 | if (echo_keystrokes | |
2607 | && ! (EVENT_HAS_PARAMETERS (c) | |
2608 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2609 | { | |
2610 | echo_char (c); | |
2611 | if (! NILP (also_record)) | |
2612 | echo_char (also_record); | |
2613 | /* Once we reread a character, echoing can happen | |
2614 | the next time we pause to read a new one. */ | |
985f9f66 | 2615 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2616 | } |
2617 | ||
2618 | /* Record this character as part of the current key. */ | |
2619 | add_command_key (c); | |
e4fe371d | 2620 | if (! NILP (also_record)) |
7d18f9ae | 2621 | add_command_key (also_record); |
e4fe371d | 2622 | } |
b8556aee | 2623 | |
284f4730 | 2624 | last_input_char = c; |
c43b1734 | 2625 | num_input_events++; |
284f4730 JB |
2626 | |
2627 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2628 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2629 | { |
2630 | Lisp_Object tem0; | |
2631 | count = specpdl_ptr - specpdl; | |
2632 | ||
2633 | record_unwind_protect (Fset_window_configuration, | |
2634 | Fcurrent_window_configuration (Qnil)); | |
2635 | ||
2636 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2637 | if (STRINGP (tem0)) |
284f4730 JB |
2638 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2639 | ||
2640 | cancel_echoing (); | |
3cb81011 KH |
2641 | do |
2642 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2643 | while (BUFFERP (c)); |
ff11dfa1 | 2644 | /* Remove the help from the frame */ |
284f4730 | 2645 | unbind_to (count, Qnil); |
410d4de9 | 2646 | |
284f4730 JB |
2647 | redisplay (); |
2648 | if (EQ (c, make_number (040))) | |
2649 | { | |
2650 | cancel_echoing (); | |
3cb81011 KH |
2651 | do |
2652 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2653 | while (BUFFERP (c)); |
284f4730 JB |
2654 | } |
2655 | } | |
2656 | ||
7c3bc944 | 2657 | RETURN_UNGCPRO (c); |
284f4730 JB |
2658 | } |
2659 | ||
8eb4d8ef RS |
2660 | /* Record a key that came from a mouse menu. |
2661 | Record it for echoing, for this-command-keys, and so on. */ | |
2662 | ||
2663 | static void | |
2664 | record_menu_key (c) | |
2665 | Lisp_Object c; | |
2666 | { | |
2667 | /* Wipe the echo area. */ | |
985f9f66 | 2668 | clear_message (1, 0); |
8eb4d8ef RS |
2669 | |
2670 | record_char (c); | |
2671 | ||
2672 | before_command_key_count = this_command_key_count; | |
2673 | before_command_echo_length = echo_length (); | |
2674 | ||
2675 | /* Don't echo mouse motion events. */ | |
2676 | if (echo_keystrokes) | |
2677 | { | |
2678 | echo_char (c); | |
2679 | ||
2680 | /* Once we reread a character, echoing can happen | |
2681 | the next time we pause to read a new one. */ | |
2682 | ok_to_echo_at_next_pause = 0; | |
2683 | } | |
2684 | ||
2685 | /* Record this character as part of the current key. */ | |
2686 | add_command_key (c); | |
2687 | ||
2688 | /* Re-reading in the middle of a command */ | |
2689 | last_input_char = c; | |
c43b1734 | 2690 | num_input_events++; |
8eb4d8ef RS |
2691 | } |
2692 | ||
ecb7cb34 KH |
2693 | /* Return 1 if should recognize C as "the help character". */ |
2694 | ||
2695 | int | |
2696 | help_char_p (c) | |
2697 | Lisp_Object c; | |
2698 | { | |
2699 | Lisp_Object tail; | |
2700 | ||
2701 | if (EQ (c, Vhelp_char)) | |
2702 | return 1; | |
7539e11f KR |
2703 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
2704 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
2705 | return 1; |
2706 | return 0; | |
2707 | } | |
2708 | ||
e4fe371d RS |
2709 | /* Record the input event C in various ways. */ |
2710 | ||
2711 | static void | |
2712 | record_char (c) | |
2713 | Lisp_Object c; | |
2714 | { | |
2715 | total_keys++; | |
2716 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2717 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2718 | recent_keys_index = 0; | |
2719 | ||
2720 | /* Write c to the dribble file. If c is a lispy event, write | |
2721 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2722 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2723 | if (dribble) | |
2724 | { | |
2725 | if (INTEGERP (c)) | |
2726 | { | |
2727 | if (XUINT (c) < 0x100) | |
2728 | putc (XINT (c), dribble); | |
2729 | else | |
6de34814 | 2730 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2731 | } |
2732 | else | |
2733 | { | |
2734 | Lisp_Object dribblee; | |
2735 | ||
2736 | /* If it's a structured event, take the event header. */ | |
2737 | dribblee = EVENT_HEAD (c); | |
2738 | ||
2739 | if (SYMBOLP (dribblee)) | |
2740 | { | |
2741 | putc ('<', dribble); | |
2742 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 2743 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
2744 | dribble); |
2745 | putc ('>', dribble); | |
2746 | } | |
2747 | } | |
2748 | ||
2749 | fflush (dribble); | |
2750 | } | |
2751 | ||
2752 | store_kbd_macro_char (c); | |
2753 | ||
c43b1734 | 2754 | num_nonmacro_input_events++; |
e4fe371d RS |
2755 | } |
2756 | ||
284f4730 JB |
2757 | Lisp_Object |
2758 | print_help (object) | |
2759 | Lisp_Object object; | |
2760 | { | |
622de3e9 | 2761 | struct buffer *old = current_buffer; |
284f4730 | 2762 | Fprinc (object, Qnil); |
622de3e9 KH |
2763 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2764 | call0 (intern ("help-mode")); | |
2765 | set_buffer_internal (old); | |
284f4730 JB |
2766 | return Qnil; |
2767 | } | |
2768 | ||
2769 | /* Copy out or in the info on where C-g should throw to. | |
2770 | This is used when running Lisp code from within get_char, | |
2771 | in case get_char is called recursively. | |
2772 | See read_process_output. */ | |
2773 | ||
dfcf069d | 2774 | static void |
284f4730 JB |
2775 | save_getcjmp (temp) |
2776 | jmp_buf temp; | |
2777 | { | |
2778 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2779 | } | |
2780 | ||
dfcf069d | 2781 | static void |
284f4730 JB |
2782 | restore_getcjmp (temp) |
2783 | jmp_buf temp; | |
2784 | { | |
2785 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2786 | } | |
284f4730 | 2787 | \f |
2eb6bfbe RM |
2788 | #ifdef HAVE_MOUSE |
2789 | ||
284f4730 JB |
2790 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2791 | of this function. */ | |
a9d77f1f | 2792 | |
284f4730 JB |
2793 | static Lisp_Object |
2794 | tracking_off (old_value) | |
2795 | Lisp_Object old_value; | |
2796 | { | |
71edead1 RS |
2797 | do_mouse_tracking = old_value; |
2798 | if (NILP (old_value)) | |
284f4730 | 2799 | { |
284f4730 JB |
2800 | /* Redisplay may have been preempted because there was input |
2801 | available, and it assumes it will be called again after the | |
2802 | input has been processed. If the only input available was | |
2803 | the sort that we have just disabled, then we need to call | |
2804 | redisplay. */ | |
d9d4c147 | 2805 | if (!readable_events (1)) |
284f4730 JB |
2806 | { |
2807 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2808 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2809 | } |
2810 | } | |
2811 | } | |
2812 | ||
2813 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2814 | "Evaluate BODY with mouse movement events enabled.\n\ |
2815 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2816 | you can read with `read-event'.\n\ | |
2817 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2818 | (args) |
2819 | Lisp_Object args; | |
2820 | { | |
2821 | int count = specpdl_ptr - specpdl; | |
2822 | Lisp_Object val; | |
2823 | ||
a9d77f1f | 2824 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2825 | |
f3253854 | 2826 | do_mouse_tracking = Qt; |
df0f2ba1 | 2827 | |
284f4730 JB |
2828 | val = Fprogn (args); |
2829 | return unbind_to (count, val); | |
2830 | } | |
2eb6bfbe | 2831 | |
f3253854 KH |
2832 | /* If mouse has moved on some frame, return one of those frames. |
2833 | Return 0 otherwise. */ | |
2834 | ||
2835 | static FRAME_PTR | |
2836 | some_mouse_moved () | |
2837 | { | |
2838 | Lisp_Object tail, frame; | |
2839 | ||
2840 | FOR_EACH_FRAME (tail, frame) | |
2841 | { | |
2842 | if (XFRAME (frame)->mouse_moved) | |
2843 | return XFRAME (frame); | |
2844 | } | |
2845 | ||
2846 | return 0; | |
2847 | } | |
2848 | ||
2eb6bfbe | 2849 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2850 | \f |
2851 | /* Low level keyboard/mouse input. | |
2852 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2853 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2854 | |
2855 | /* Return true iff there are any events in the queue that read-char | |
2856 | would return. If this returns false, a read-char would block. */ | |
2857 | static int | |
d9d4c147 KH |
2858 | readable_events (do_timers_now) |
2859 | int do_timers_now; | |
a612e298 | 2860 | { |
4ec4ed6a RS |
2861 | if (do_timers_now) |
2862 | timer_check (do_timers_now); | |
2863 | ||
beecf6a1 KH |
2864 | if (kbd_fetch_ptr != kbd_store_ptr) |
2865 | return 1; | |
2866 | #ifdef HAVE_MOUSE | |
f3253854 | 2867 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2868 | return 1; |
2869 | #endif | |
1e8bd3da | 2870 | if (single_kboard) |
4c52b668 | 2871 | { |
c5fdd383 | 2872 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2873 | return 1; |
2874 | } | |
2875 | else | |
2876 | { | |
c5fdd383 KH |
2877 | KBOARD *kb; |
2878 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2879 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2880 | return 1; |
2881 | } | |
beecf6a1 | 2882 | return 0; |
a612e298 RS |
2883 | } |
2884 | ||
2885 | /* Set this for debugging, to have a way to get out */ | |
2886 | int stop_character; | |
284f4730 | 2887 | |
c5fdd383 KH |
2888 | #ifdef MULTI_KBOARD |
2889 | static KBOARD * | |
2890 | event_to_kboard (event) | |
5798cf15 KH |
2891 | struct input_event *event; |
2892 | { | |
2893 | Lisp_Object frame; | |
2894 | frame = event->frame_or_window; | |
2895 | if (CONSP (frame)) | |
7539e11f | 2896 | frame = XCAR (frame); |
5798cf15 KH |
2897 | else if (WINDOWP (frame)) |
2898 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2899 | ||
2900 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2901 | For now, just ignore the problem. |
2902 | Also ignore dead frames here. */ | |
2903 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2904 | return 0; |
2905 | else | |
c5fdd383 | 2906 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2907 | } |
2908 | #endif | |
2909 | ||
284f4730 JB |
2910 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2911 | ||
2912 | void | |
2913 | kbd_buffer_store_event (event) | |
2914 | register struct input_event *event; | |
2915 | { | |
2916 | if (event->kind == no_event) | |
2917 | abort (); | |
2918 | ||
2919 | if (event->kind == ascii_keystroke) | |
2920 | { | |
e9bf89a0 | 2921 | register int c = event->code & 0377; |
284f4730 | 2922 | |
faf5e407 JB |
2923 | if (event->modifiers & ctrl_modifier) |
2924 | c = make_ctrl_char (c); | |
2925 | ||
9fd7d808 RS |
2926 | c |= (event->modifiers |
2927 | & (meta_modifier | alt_modifier | |
2928 | | hyper_modifier | super_modifier)); | |
2929 | ||
86e5706b | 2930 | if (c == quit_char) |
284f4730 | 2931 | { |
3e51c7b7 | 2932 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2933 | #ifdef MULTI_KBOARD |
2934 | KBOARD *kb; | |
5798cf15 KH |
2935 | struct input_event *sp; |
2936 | ||
1e8bd3da | 2937 | if (single_kboard |
c5fdd383 KH |
2938 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2939 | kb != current_kboard)) | |
5798cf15 | 2940 | { |
c5fdd383 | 2941 | kb->kbd_queue |
5798cf15 KH |
2942 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2943 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2944 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2945 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2946 | { | |
2947 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2948 | sp = kbd_buffer; | |
2949 | ||
c5fdd383 | 2950 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2951 | { |
2952 | sp->kind = no_event; | |
2953 | sp->frame_or_window = Qnil; | |
2954 | } | |
2955 | } | |
2956 | return; | |
2957 | } | |
2958 | #endif | |
3e51c7b7 | 2959 | |
284f4730 | 2960 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2961 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2962 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2963 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2964 | { |
9b8eb840 | 2965 | Lisp_Object focus; |
4bb994d1 | 2966 | |
9b8eb840 | 2967 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2968 | if (NILP (focus)) |
beecf6a1 | 2969 | focus = event->frame_or_window; |
4c52b668 KH |
2970 | internal_last_event_frame = focus; |
2971 | Vlast_event_frame = focus; | |
4bb994d1 | 2972 | } |
3e51c7b7 | 2973 | |
ffd56f97 | 2974 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2975 | interrupt_signal (); |
2976 | return; | |
2977 | } | |
2978 | ||
2979 | if (c && c == stop_character) | |
2980 | { | |
2981 | sys_suspend (); | |
2982 | return; | |
2983 | } | |
284f4730 | 2984 | } |
3fe8e9a2 RS |
2985 | /* Don't insert two buffer_switch_event's in a row. |
2986 | Just ignore the second one. */ | |
2987 | else if (event->kind == buffer_switch_event | |
2988 | && kbd_fetch_ptr != kbd_store_ptr | |
2989 | && kbd_store_ptr->kind == buffer_switch_event) | |
2990 | return; | |
284f4730 | 2991 | |
beecf6a1 KH |
2992 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2993 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2994 | |
2995 | /* Don't let the very last slot in the buffer become full, | |
2996 | since that would make the two pointers equal, | |
2997 | and that is indistinguishable from an empty buffer. | |
2998 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2999 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3000 | { |
7ee32cda | 3001 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3002 | sp->kind = event->kind; |
27203ead RS |
3003 | if (event->kind == selection_request_event) |
3004 | { | |
3005 | /* We must not use the ordinary copying code for this case, | |
3006 | since `part' is an enum and copying it might not copy enough | |
3007 | in this case. */ | |
612b78ef | 3008 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3009 | } |
3010 | else | |
3011 | { | |
612b78ef KH |
3012 | sp->code = event->code; |
3013 | sp->part = event->part; | |
3014 | sp->frame_or_window = event->frame_or_window; | |
3015 | sp->modifiers = event->modifiers; | |
3016 | sp->x = event->x; | |
3017 | sp->y = event->y; | |
3018 | sp->timestamp = event->timestamp; | |
27203ead | 3019 | } |
beecf6a1 KH |
3020 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
3021 | - kbd_buffer] | |
7b4aedb9 | 3022 | = event->frame_or_window); |
284f4730 | 3023 | |
beecf6a1 | 3024 | kbd_store_ptr++; |
284f4730 JB |
3025 | } |
3026 | } | |
a612e298 | 3027 | \f |
07de30b9 GV |
3028 | /* Discard any mouse events in the event buffer by setting them to |
3029 | no_event. */ | |
3030 | void | |
3031 | discard_mouse_events () | |
3032 | { | |
3033 | struct input_event *sp; | |
3034 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3035 | { | |
3036 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3037 | sp = kbd_buffer; | |
3038 | ||
3039 | if (sp->kind == mouse_click | |
3040 | #ifdef WINDOWSNT | |
3041 | || sp->kind == w32_scroll_bar_click | |
3042 | #endif | |
3043 | || sp->kind == scroll_bar_click) | |
3044 | { | |
3045 | sp->kind = no_event; | |
3046 | } | |
3047 | } | |
3048 | } | |
3049 | \f | |
a612e298 RS |
3050 | /* Read one event from the event buffer, waiting if necessary. |
3051 | The value is a Lisp object representing the event. | |
3052 | The value is nil for an event that should be ignored, | |
3053 | or that was handled here. | |
3054 | We always read and discard one event. */ | |
284f4730 JB |
3055 | |
3056 | static Lisp_Object | |
83d68044 | 3057 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3058 | KBOARD **kbp; |
83d68044 | 3059 | int *used_mouse_menu; |
284f4730 JB |
3060 | { |
3061 | register int c; | |
3062 | Lisp_Object obj; | |
3063 | ||
3064 | if (noninteractive) | |
3065 | { | |
3066 | c = getchar (); | |
18cd2eeb | 3067 | XSETINT (obj, c); |
f5b56972 | 3068 | *kbp = current_kboard; |
284f4730 JB |
3069 | return obj; |
3070 | } | |
3071 | ||
3072 | /* Wait until there is input available. */ | |
3073 | for (;;) | |
3074 | { | |
beecf6a1 KH |
3075 | if (kbd_fetch_ptr != kbd_store_ptr) |
3076 | break; | |
3077 | #ifdef HAVE_MOUSE | |
f3253854 | 3078 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3079 | break; |
beecf6a1 | 3080 | #endif |
284f4730 JB |
3081 | |
3082 | /* If the quit flag is set, then read_char will return | |
3083 | quit_char, so that counts as "available input." */ | |
3084 | if (!NILP (Vquit_flag)) | |
3085 | quit_throw_to_read_char (); | |
3086 | ||
3087 | /* One way or another, wait until input is available; then, if | |
3088 | interrupt handlers have not read it, read it now. */ | |
3089 | ||
3090 | #ifdef OLDVMS | |
3091 | wait_for_kbd_input (); | |
3092 | #else | |
3093 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3094 | #ifdef SIGIO | |
3095 | gobble_input (0); | |
3096 | #endif /* SIGIO */ | |
beecf6a1 KH |
3097 | if (kbd_fetch_ptr != kbd_store_ptr) |
3098 | break; | |
3099 | #ifdef HAVE_MOUSE | |
f3253854 | 3100 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3101 | break; |
3102 | #endif | |
3103 | { | |
3104 | Lisp_Object minus_one; | |
f76475ad | 3105 | |
beecf6a1 | 3106 | XSETINT (minus_one, -1); |
d9d4c147 | 3107 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3108 | |
beecf6a1 KH |
3109 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3110 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3111 | read_avail_input (1); | |
3112 | } | |
284f4730 JB |
3113 | #endif /* not VMS */ |
3114 | } | |
3115 | ||
303b5b3f RS |
3116 | if (CONSP (Vunread_command_events)) |
3117 | { | |
3118 | Lisp_Object first; | |
7539e11f KR |
3119 | first = XCAR (Vunread_command_events); |
3120 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3121 | *kbp = current_kboard; |
3122 | return first; | |
3123 | } | |
3124 | ||
284f4730 JB |
3125 | /* At this point, we know that there is a readable event available |
3126 | somewhere. If the event queue is empty, then there must be a | |
3127 | mouse movement enabled and available. */ | |
beecf6a1 | 3128 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3129 | { |
cd21b839 | 3130 | struct input_event *event; |
3e51c7b7 | 3131 | |
beecf6a1 KH |
3132 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3133 | ? kbd_fetch_ptr | |
3134 | : kbd_buffer); | |
3e51c7b7 | 3135 | |
cd21b839 | 3136 | last_event_timestamp = event->timestamp; |
cd21b839 | 3137 | |
c5fdd383 KH |
3138 | #ifdef MULTI_KBOARD |
3139 | *kbp = event_to_kboard (event); | |
3140 | if (*kbp == 0) | |
3141 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3142 | #else |
c5fdd383 | 3143 | *kbp = &the_only_kboard; |
5798cf15 | 3144 | #endif |
beecf6a1 | 3145 | |
4bb994d1 JB |
3146 | obj = Qnil; |
3147 | ||
48e416d4 | 3148 | /* These two kinds of events get special handling |
a612e298 RS |
3149 | and don't actually appear to the command loop. |
3150 | We return nil for them. */ | |
48e416d4 RS |
3151 | if (event->kind == selection_request_event) |
3152 | { | |
598a9fa7 | 3153 | #ifdef HAVE_X11 |
1e8bd3da RS |
3154 | struct input_event copy; |
3155 | ||
4581e928 RS |
3156 | /* Remove it from the buffer before processing it, |
3157 | since otherwise swallow_events will see it | |
3158 | and process it again. */ | |
1e8bd3da | 3159 | copy = *event; |
beecf6a1 | 3160 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3161 | input_pending = readable_events (0); |
4581e928 | 3162 | x_handle_selection_request (©); |
598a9fa7 JB |
3163 | #else |
3164 | /* We're getting selection request events, but we don't have | |
3165 | a window system. */ | |
3166 | abort (); | |
3167 | #endif | |
48e416d4 RS |
3168 | } |
3169 | ||
1e12dd87 | 3170 | else if (event->kind == selection_clear_event) |
48e416d4 | 3171 | { |
598a9fa7 | 3172 | #ifdef HAVE_X11 |
e0301c07 RS |
3173 | struct input_event copy; |
3174 | ||
3175 | /* Remove it from the buffer before processing it. */ | |
3176 | copy = *event; | |
beecf6a1 | 3177 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3178 | input_pending = readable_events (0); |
90c2bb0c | 3179 | x_handle_selection_clear (©); |
598a9fa7 JB |
3180 | #else |
3181 | /* We're getting selection request events, but we don't have | |
3182 | a window system. */ | |
3183 | abort (); | |
3184 | #endif | |
48e416d4 | 3185 | } |
e98a93eb | 3186 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
3187 | else if (event->kind == delete_window_event) |
3188 | { | |
bbdc2092 RS |
3189 | /* Make an event (delete-frame (FRAME)). */ |
3190 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3191 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3192 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3193 | } |
3194 | else if (event->kind == iconify_event) | |
3195 | { | |
3196 | /* Make an event (iconify-frame (FRAME)). */ | |
3197 | obj = Fcons (event->frame_or_window, Qnil); | |
3198 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3199 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3200 | } |
3201 | else if (event->kind == deiconify_event) | |
3202 | { | |
3203 | /* Make an event (make-frame-visible (FRAME)). */ | |
3204 | obj = Fcons (event->frame_or_window, Qnil); | |
3205 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3206 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3207 | } |
3208 | #endif | |
a8015ab5 KH |
3209 | else if (event->kind == buffer_switch_event) |
3210 | { | |
3211 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3212 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3213 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3214 | } |
07de30b9 | 3215 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
3216 | else if (event->kind == menu_bar_activate_event) |
3217 | { | |
3218 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3219 | input_pending = readable_events (0); |
e649d076 RS |
3220 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3221 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3222 | } |
1161d367 GV |
3223 | #endif |
3224 | #ifdef WINDOWSNT | |
3225 | else if (event->kind == language_change_event) | |
3226 | { | |
3227 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3228 | obj = Fcons (event->modifiers, Qnil); | |
3229 | obj = Fcons (event->code, Qnil); | |
3230 | obj = Fcons (event->frame_or_window, obj); | |
3231 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3232 | kbd_fetch_ptr = event + 1; | |
3233 | } | |
099787c1 | 3234 | #endif |
a612e298 | 3235 | /* Just discard these, by returning nil. |
c5fdd383 | 3236 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3237 | when we need to randomly delete events from the queue. |
3238 | (They shouldn't otherwise be found in the buffer, | |
3239 | but on some machines it appears they do show up | |
c5fdd383 | 3240 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3241 | /* On Windows NT/9X, no_event is used to delete extraneous |
3242 | mouse events during a popup-menu call. */ | |
a612e298 | 3243 | else if (event->kind == no_event) |
beecf6a1 | 3244 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3245 | else if (event->kind == HELP_EVENT) |
3246 | { | |
3247 | /* The car of event->frame_or_window is a frame, | |
3248 | the cdr is the help to display. */ | |
3249 | obj = Fcons (Qhelp_echo, event->frame_or_window); | |
3250 | kbd_fetch_ptr = event + 1; | |
3251 | } | |
4bb994d1 JB |
3252 | /* If this event is on a different frame, return a switch-frame this |
3253 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
3254 | else |
3255 | { | |
9b8eb840 | 3256 | Lisp_Object frame; |
1e12dd87 | 3257 | Lisp_Object focus; |
7b4aedb9 | 3258 | |
9b8eb840 | 3259 | frame = event->frame_or_window; |
2470a66f | 3260 | if (CONSP (frame)) |
7539e11f | 3261 | frame = XCAR (frame); |
2470a66f | 3262 | else if (WINDOWP (frame)) |
1e12dd87 | 3263 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3264 | |
1e12dd87 RS |
3265 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3266 | if (! NILP (focus)) | |
3267 | frame = focus; | |
07d2b8de | 3268 | |
4c52b668 | 3269 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3270 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3271 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3272 | internal_last_event_frame = frame; |
4bb994d1 | 3273 | |
1e12dd87 RS |
3274 | /* If we didn't decide to make a switch-frame event, go ahead |
3275 | and build a real event from the queue entry. */ | |
cd21b839 | 3276 | |
1e12dd87 RS |
3277 | if (NILP (obj)) |
3278 | { | |
3279 | obj = make_lispy_event (event); | |
e98a93eb | 3280 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3281 | /* If this was a menu selection, then set the flag to inhibit |
3282 | writing to last_nonmenu_event. Don't do this if the event | |
3283 | we're returning is (menu-bar), though; that indicates the | |
3284 | beginning of the menu sequence, and we might as well leave | |
3285 | that as the `event with parameters' for this selection. */ | |
7ee32cda | 3286 | if ((event->kind == menu_bar_event |
9ea173e8 | 3287 | || event->kind == TOOL_BAR_EVENT) |
7539e11f KR |
3288 | && !(CONSP (obj) && EQ (XCAR (obj), Qmenu_bar)) |
3289 | && !(CONSP (obj) && EQ (XCAR (obj), Qtool_bar)) | |
83d68044 KH |
3290 | && used_mouse_menu) |
3291 | *used_mouse_menu = 1; | |
3292 | #endif | |
1e12dd87 RS |
3293 | |
3294 | /* Wipe out this event, to catch bugs. */ | |
3295 | event->kind = no_event; | |
beecf6a1 | 3296 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 3297 | |
beecf6a1 | 3298 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3299 | } |
4bb994d1 | 3300 | } |
284f4730 | 3301 | } |
2eb6bfbe | 3302 | #ifdef HAVE_MOUSE |
a612e298 | 3303 | /* Try generating a mouse motion event. */ |
f3253854 | 3304 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3305 | { |
f3253854 | 3306 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3307 | Lisp_Object bar_window; |
3c370943 | 3308 | enum scroll_bar_part part; |
e5d77022 JB |
3309 | Lisp_Object x, y; |
3310 | unsigned long time; | |
284f4730 | 3311 | |
c5fdd383 | 3312 | *kbp = current_kboard; |
e177ac3a RS |
3313 | /* Note that this uses F to determine which display to look at. |
3314 | If there is no valid info, it does not store anything | |
3315 | so x remains nil. */ | |
3316 | x = Qnil; | |
dd26ab75 | 3317 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3318 | |
3319 | obj = Qnil; | |
284f4730 | 3320 | |
4bb994d1 JB |
3321 | /* Decide if we should generate a switch-frame event. Don't |
3322 | generate switch-frame events for motion outside of all Emacs | |
3323 | frames. */ | |
e177ac3a | 3324 | if (!NILP (x) && f) |
cd21b839 | 3325 | { |
9b8eb840 | 3326 | Lisp_Object frame; |
4bb994d1 | 3327 | |
9b8eb840 | 3328 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3329 | if (NILP (frame)) |
18cd2eeb | 3330 | XSETFRAME (frame, f); |
4bb994d1 | 3331 | |
4c52b668 | 3332 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3333 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3334 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3335 | internal_last_event_frame = frame; |
cd21b839 | 3336 | } |
4bb994d1 | 3337 | |
df0f2ba1 | 3338 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3339 | return a mouse-motion event. */ |
e177ac3a | 3340 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3341 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3342 | } |
2eb6bfbe | 3343 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3344 | else |
3345 | /* We were promised by the above while loop that there was | |
3346 | something for us to read! */ | |
3347 | abort (); | |
3348 | ||
d9d4c147 | 3349 | input_pending = readable_events (0); |
284f4730 | 3350 | |
4c52b668 | 3351 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3352 | |
284f4730 JB |
3353 | return (obj); |
3354 | } | |
a612e298 RS |
3355 | \f |
3356 | /* Process any events that are not user-visible, | |
3357 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3358 | |
3359 | void | |
d9d4c147 KH |
3360 | swallow_events (do_display) |
3361 | int do_display; | |
3a3b9632 | 3362 | { |
87dd9b9b RS |
3363 | int old_timers_run; |
3364 | ||
beecf6a1 | 3365 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3366 | { |
3367 | struct input_event *event; | |
3368 | ||
beecf6a1 KH |
3369 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3370 | ? kbd_fetch_ptr | |
3371 | : kbd_buffer); | |
3a3b9632 RS |
3372 | |
3373 | last_event_timestamp = event->timestamp; | |
3374 | ||
3375 | /* These two kinds of events get special handling | |
3376 | and don't actually appear to the command loop. */ | |
3377 | if (event->kind == selection_request_event) | |
3378 | { | |
3379 | #ifdef HAVE_X11 | |
4581e928 | 3380 | struct input_event copy; |
e0301c07 RS |
3381 | |
3382 | /* Remove it from the buffer before processing it, | |
3383 | since otherwise swallow_events called recursively could see it | |
3384 | and process it again. */ | |
4581e928 | 3385 | copy = *event; |
beecf6a1 | 3386 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3387 | input_pending = readable_events (0); |
4581e928 | 3388 | x_handle_selection_request (©); |
3a3b9632 RS |
3389 | #else |
3390 | /* We're getting selection request events, but we don't have | |
3391 | a window system. */ | |
3392 | abort (); | |
3393 | #endif | |
3394 | } | |
3395 | ||
3396 | else if (event->kind == selection_clear_event) | |
3397 | { | |
3398 | #ifdef HAVE_X11 | |
e0301c07 RS |
3399 | struct input_event copy; |
3400 | ||
3401 | /* Remove it from the buffer before processing it, */ | |
3402 | copy = *event; | |
3403 | ||
beecf6a1 | 3404 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3405 | input_pending = readable_events (0); |
90c2bb0c | 3406 | x_handle_selection_clear (©); |
3a3b9632 RS |
3407 | #else |
3408 | /* We're getting selection request events, but we don't have | |
3409 | a window system. */ | |
3410 | abort (); | |
3411 | #endif | |
3412 | } | |
3413 | else | |
3414 | break; | |
3415 | } | |
3416 | ||
87dd9b9b | 3417 | old_timers_run = timers_run; |
d9d4c147 | 3418 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3419 | |
3420 | if (timers_run != old_timers_run && do_display) | |
3421 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3422 | } |
a612e298 | 3423 | \f |
d9d4c147 KH |
3424 | static EMACS_TIME timer_idleness_start_time; |
3425 | ||
3426 | /* Record the start of when Emacs is idle, | |
3427 | for the sake of running idle-time timers. */ | |
3428 | ||
07a59269 | 3429 | void |
d9d4c147 KH |
3430 | timer_start_idle () |
3431 | { | |
3432 | Lisp_Object timers; | |
3433 | ||
3434 | /* If we are already in the idle state, do nothing. */ | |
3435 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3436 | return; | |
3437 | ||
3438 | EMACS_GET_TIME (timer_idleness_start_time); | |
3439 | ||
3440 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3441 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3442 | { |
3443 | Lisp_Object timer; | |
3444 | ||
7539e11f | 3445 | timer = XCAR (timers); |
d9d4c147 KH |
3446 | |
3447 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3448 | continue; | |
3449 | XVECTOR (timer)->contents[0] = Qnil; | |
3450 | } | |
3451 | } | |
3452 | ||
3453 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3454 | ||
07a59269 | 3455 | void |
d9d4c147 KH |
3456 | timer_stop_idle () |
3457 | { | |
3458 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3459 | } | |
3460 | ||
e044e87c RS |
3461 | /* This is only for debugging. */ |
3462 | struct input_event last_timer_event; | |
3463 | ||
c04cbc3b RS |
3464 | /* Check whether a timer has fired. To prevent larger problems we simply |
3465 | disregard elements that are not proper timers. Do not make a circular | |
3466 | timer list for the time being. | |
3467 | ||
3468 | Returns the number of seconds to wait until the next timer fires. If a | |
3469 | timer is triggering now, return zero seconds. | |
3470 | If no timer is active, return -1 seconds. | |
3471 | ||
4ec4ed6a RS |
3472 | If a timer is ripe, we run it, with quitting turned off. |
3473 | ||
3474 | DO_IT_NOW is now ignored. It used to mean that we should | |
3475 | run the timer directly instead of queueing a timer-event. | |
3476 | Now we always run timers directly. */ | |
c04cbc3b RS |
3477 | |
3478 | EMACS_TIME | |
3479 | timer_check (do_it_now) | |
3480 | int do_it_now; | |
3481 | { | |
3482 | EMACS_TIME nexttime; | |
9291c072 RS |
3483 | EMACS_TIME now, idleness_now; |
3484 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3485 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3486 | |
c04cbc3b RS |
3487 | EMACS_SET_SECS (nexttime, -1); |
3488 | EMACS_SET_USECS (nexttime, -1); | |
3489 | ||
9291c072 | 3490 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3491 | timers = Vtimer_list; |
9291c072 RS |
3492 | /* Consider the idle timers only if Emacs is idle. */ |
3493 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3494 | idle_timers = Vtimer_idle_list; | |
3495 | else | |
3496 | idle_timers = Qnil; | |
3497 | chosen_timer = Qnil; | |
3498 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3499 | |
9291c072 | 3500 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3501 | { |
9291c072 RS |
3502 | EMACS_GET_TIME (now); |
3503 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3504 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3505 | } | |
c04cbc3b | 3506 | |
9291c072 RS |
3507 | while (CONSP (timers) || CONSP (idle_timers)) |
3508 | { | |
9291c072 RS |
3509 | Lisp_Object *vector; |
3510 | Lisp_Object timer, idle_timer; | |
3511 | EMACS_TIME timer_time, idle_timer_time; | |
3512 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3513 | ||
3514 | /* Skip past invalid timers and timers already handled. */ | |
3515 | if (!NILP (timers)) | |
c04cbc3b | 3516 | { |
7539e11f | 3517 | timer = XCAR (timers); |
9291c072 RS |
3518 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3519 | { | |
7539e11f | 3520 | timers = XCDR (timers); |
9291c072 RS |
3521 | continue; |
3522 | } | |
3523 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3524 | |
9291c072 RS |
3525 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3526 | || !INTEGERP (vector[3]) | |
3527 | || ! NILP (vector[0])) | |
3528 | { | |
7539e11f | 3529 | timers = XCDR (timers); |
9291c072 RS |
3530 | continue; |
3531 | } | |
3532 | } | |
3533 | if (!NILP (idle_timers)) | |
3534 | { | |
7539e11f | 3535 | timer = XCAR (idle_timers); |
d9d4c147 | 3536 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 3537 | { |
7539e11f | 3538 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3539 | continue; |
3540 | } | |
d9d4c147 KH |
3541 | vector = XVECTOR (timer)->contents; |
3542 | ||
3543 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3544 | || !INTEGERP (vector[3]) |
3545 | || ! NILP (vector[0])) | |
3546 | { | |
7539e11f | 3547 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3548 | continue; |
3549 | } | |
3550 | } | |
d9d4c147 | 3551 | |
9291c072 RS |
3552 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3553 | based on the next ordinary timer. | |
3554 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3555 | this timer becomes ripe (negative if it's already ripe). */ | |
3556 | if (!NILP (timers)) | |
3557 | { | |
7539e11f | 3558 | timer = XCAR (timers); |
9291c072 | 3559 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
3560 | EMACS_SET_SECS (timer_time, |
3561 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3562 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3563 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3564 | } | |
ba8dfba8 | 3565 | |
9291c072 RS |
3566 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3567 | based on the next idle timer. */ | |
3568 | if (!NILP (idle_timers)) | |
3569 | { | |
7539e11f | 3570 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
3571 | vector = XVECTOR (idle_timer)->contents; |
3572 | EMACS_SET_SECS (idle_timer_time, | |
3573 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3574 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3575 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3576 | } | |
ba8dfba8 | 3577 | |
9291c072 RS |
3578 | /* Decide which timer is the next timer, |
3579 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3580 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3581 | |
9291c072 RS |
3582 | if (! NILP (timers) && ! NILP (idle_timers)) |
3583 | { | |
3584 | EMACS_TIME temp; | |
3585 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3586 | if (EMACS_TIME_NEG_P (temp)) | |
3587 | { | |
3588 | chosen_timer = timer; | |
7539e11f | 3589 | timers = XCDR (timers); |
9291c072 | 3590 | difference = timer_difference; |
c04cbc3b | 3591 | } |
d9d4c147 | 3592 | else |
d9d4c147 | 3593 | { |
9291c072 | 3594 | chosen_timer = idle_timer; |
7539e11f | 3595 | idle_timers = XCDR (idle_timers); |
9291c072 | 3596 | difference = idle_timer_difference; |
d9d4c147 | 3597 | } |
7ea13e12 | 3598 | } |
9291c072 RS |
3599 | else if (! NILP (timers)) |
3600 | { | |
3601 | chosen_timer = timer; | |
7539e11f | 3602 | timers = XCDR (timers); |
9291c072 RS |
3603 | difference = timer_difference; |
3604 | } | |
3605 | else | |
3606 | { | |
3607 | chosen_timer = idle_timer; | |
7539e11f | 3608 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3609 | difference = idle_timer_difference; |
3610 | } | |
3611 | vector = XVECTOR (chosen_timer)->contents; | |
3612 | ||
3613 | /* If timer is rupe, run it if it hasn't been run. */ | |
3614 | if (EMACS_TIME_NEG_P (difference) | |
3615 | || (EMACS_SECS (difference) == 0 | |
3616 | && EMACS_USECS (difference) == 0)) | |
3617 | { | |
3618 | if (NILP (vector[0])) | |
3619 | { | |
d925fb39 RS |
3620 | int was_locked = single_kboard; |
3621 | int count = specpdl_ptr - specpdl; | |
7ee32cda GM |
3622 | #ifdef HAVE_WINDOW_SYSTEM |
3623 | int old_inhibit_busy_cursor = inhibit_busy_cursor; | |
3624 | #endif | |
d925fb39 | 3625 | |
9291c072 RS |
3626 | /* Mark the timer as triggered to prevent problems if the lisp |
3627 | code fails to reschedule it right. */ | |
3628 | vector[0] = Qt; | |
3629 | ||
d925fb39 | 3630 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3631 | |
7ee32cda GM |
3632 | #ifdef HAVE_WINDOW_SYSTEM |
3633 | inhibit_busy_cursor = 2; | |
3634 | #endif | |
3635 | ||
d925fb39 RS |
3636 | call1 (Qtimer_event_handler, chosen_timer); |
3637 | timers_run++; | |
9291c072 | 3638 | |
7ee32cda GM |
3639 | #ifdef HAVE_WINDOW_SYSTEM |
3640 | inhibit_busy_cursor = old_inhibit_busy_cursor; | |
3641 | #endif | |
3642 | ||
d925fb39 | 3643 | unbind_to (count, Qnil); |
4ec4ed6a | 3644 | |
d925fb39 RS |
3645 | /* Resume allowing input from any kboard, if that was true before. */ |
3646 | if (!was_locked) | |
3647 | any_kboard_state (); | |
9291c072 | 3648 | |
d925fb39 RS |
3649 | /* Since we have handled the event, |
3650 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3651 | } |
3652 | } | |
3653 | else | |
3654 | /* When we encounter a timer that is still waiting, | |
3655 | return the amount of time to wait before it is ripe. */ | |
3656 | { | |
3657 | UNGCPRO; | |
9291c072 RS |
3658 | return difference; |
3659 | } | |
c04cbc3b | 3660 | } |
9291c072 | 3661 | |
7ea13e12 RS |
3662 | /* No timers are pending in the future. */ |
3663 | /* Return 0 if we generated an event, and -1 if not. */ | |
3664 | UNGCPRO; | |
c04cbc3b RS |
3665 | return nexttime; |
3666 | } | |
3667 | \f | |
284f4730 | 3668 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3669 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3670 | static Lisp_Object func_key_syms; |
3671 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3672 | #ifdef WINDOWSNT |
3673 | static Lisp_Object mouse_wheel_syms; | |
3674 | #endif | |
a24dc617 | 3675 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 3676 | |
e9bf89a0 RS |
3677 | /* This is a list of keysym codes for special "accent" characters. |
3678 | It parallels lispy_accent_keys. */ | |
3679 | ||
3680 | static int lispy_accent_codes[] = | |
3681 | { | |
79a7046c | 3682 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3683 | XK_dead_circumflex, |
79a7046c RS |
3684 | #else |
3685 | 0, | |
3686 | #endif | |
3687 | #ifdef XK_dead_grave | |
e9bf89a0 | 3688 | XK_dead_grave, |
79a7046c RS |
3689 | #else |
3690 | 0, | |
3691 | #endif | |
3692 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3693 | XK_dead_tilde, |
79a7046c RS |
3694 | #else |
3695 | 0, | |
3696 | #endif | |
3697 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3698 | XK_dead_diaeresis, |
79a7046c RS |
3699 | #else |
3700 | 0, | |
3701 | #endif | |
3702 | #ifdef XK_dead_macron | |
e9bf89a0 | 3703 | XK_dead_macron, |
79a7046c RS |
3704 | #else |
3705 | 0, | |
3706 | #endif | |
3707 | #ifdef XK_dead_degree | |
e9bf89a0 | 3708 | XK_dead_degree, |
79a7046c RS |
3709 | #else |
3710 | 0, | |
3711 | #endif | |
3712 | #ifdef XK_dead_acute | |
e9bf89a0 | 3713 | XK_dead_acute, |
79a7046c RS |
3714 | #else |
3715 | 0, | |
3716 | #endif | |
3717 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3718 | XK_dead_cedilla, |
79a7046c RS |
3719 | #else |
3720 | 0, | |
3721 | #endif | |
3722 | #ifdef XK_dead_breve | |
e9bf89a0 | 3723 | XK_dead_breve, |
79a7046c RS |
3724 | #else |
3725 | 0, | |
3726 | #endif | |
3727 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3728 | XK_dead_ogonek, |
79a7046c RS |
3729 | #else |
3730 | 0, | |
3731 | #endif | |
3732 | #ifdef XK_dead_caron | |
e9bf89a0 | 3733 | XK_dead_caron, |
79a7046c RS |
3734 | #else |
3735 | 0, | |
3736 | #endif | |
3737 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3738 | XK_dead_doubleacute, |
79a7046c RS |
3739 | #else |
3740 | 0, | |
3741 | #endif | |
3742 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3743 | XK_dead_abovedot, |
79a7046c RS |
3744 | #else |
3745 | 0, | |
3746 | #endif | |
e9bf89a0 RS |
3747 | }; |
3748 | ||
3749 | /* This is a list of Lisp names for special "accent" characters. | |
3750 | It parallels lispy_accent_codes. */ | |
3751 | ||
3752 | static char *lispy_accent_keys[] = | |
3753 | { | |
3754 | "dead-circumflex", | |
3755 | "dead-grave", | |
3756 | "dead-tilde", | |
3757 | "dead-diaeresis", | |
3758 | "dead-macron", | |
3759 | "dead-degree", | |
3760 | "dead-acute", | |
3761 | "dead-cedilla", | |
3762 | "dead-breve", | |
3763 | "dead-ogonek", | |
3764 | "dead-caron", | |
3765 | "dead-doubleacute", | |
3766 | "dead-abovedot", | |
3767 | }; | |
3768 | ||
e98a93eb GV |
3769 | #ifdef HAVE_NTGUI |
3770 | #define FUNCTION_KEY_OFFSET 0x0 | |
3771 | ||
3772 | char *lispy_function_keys[] = | |
3773 | { | |
3774 | 0, /* 0 */ | |
3775 | ||
3776 | 0, /* VK_LBUTTON 0x01 */ | |
3777 | 0, /* VK_RBUTTON 0x02 */ | |
3778 | "cancel", /* VK_CANCEL 0x03 */ | |
3779 | 0, /* VK_MBUTTON 0x04 */ | |
3780 | ||
3781 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3782 | ||
3783 | "backspace", /* VK_BACK 0x08 */ | |
3784 | "tab", /* VK_TAB 0x09 */ | |
3785 | ||
3786 | 0, 0, /* 0x0A .. 0x0B */ | |
3787 | ||
3788 | "clear", /* VK_CLEAR 0x0C */ | |
3789 | "return", /* VK_RETURN 0x0D */ | |
3790 | ||
3791 | 0, 0, /* 0x0E .. 0x0F */ | |
3792 | ||
1161d367 GV |
3793 | 0, /* VK_SHIFT 0x10 */ |
3794 | 0, /* VK_CONTROL 0x11 */ | |
3795 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 3796 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 3797 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
3798 | |
3799 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3800 | ||
1161d367 | 3801 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
3802 | |
3803 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3804 | ||
3805 | 0, /* VK_SPACE 0x20 */ | |
3806 | "prior", /* VK_PRIOR 0x21 */ | |
3807 | "next", /* VK_NEXT 0x22 */ | |
3808 | "end", /* VK_END 0x23 */ | |
3809 | "home", /* VK_HOME 0x24 */ | |
3810 | "left", /* VK_LEFT 0x25 */ | |
3811 | "up", /* VK_UP 0x26 */ | |
3812 | "right", /* VK_RIGHT 0x27 */ | |
3813 | "down", /* VK_DOWN 0x28 */ | |
3814 | "select", /* VK_SELECT 0x29 */ | |
3815 | "print", /* VK_PRINT 0x2A */ | |
3816 | "execute", /* VK_EXECUTE 0x2B */ | |
3817 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3818 | "insert", /* VK_INSERT 0x2D */ | |
3819 | "delete", /* VK_DELETE 0x2E */ | |
3820 | "help", /* VK_HELP 0x2F */ | |
3821 | ||
3822 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3823 | ||
3824 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3825 | ||
3826 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3827 | ||
3828 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3829 | ||
3830 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3831 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3832 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3833 | ||
e376f90d RS |
3834 | "lwindow", /* VK_LWIN 0x5B */ |
3835 | "rwindow", /* VK_RWIN 0x5C */ | |
3836 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3837 | |
3838 | 0, 0, /* 0x5E .. 0x5F */ | |
3839 | ||
3840 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3841 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3842 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3843 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3844 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3845 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3846 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3847 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3848 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3849 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3850 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3851 | "kp-add", /* VK_ADD 0x6B */ | |
3852 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3853 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3854 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3855 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3856 | "f1", /* VK_F1 0x70 */ | |
3857 | "f2", /* VK_F2 0x71 */ | |
3858 | "f3", /* VK_F3 0x72 */ | |
3859 | "f4", /* VK_F4 0x73 */ | |
3860 | "f5", /* VK_F5 0x74 */ | |
3861 | "f6", /* VK_F6 0x75 */ | |
3862 | "f7", /* VK_F7 0x76 */ | |
3863 | "f8", /* VK_F8 0x77 */ | |
3864 | "f9", /* VK_F9 0x78 */ | |
3865 | "f10", /* VK_F10 0x79 */ | |
3866 | "f11", /* VK_F11 0x7A */ | |
3867 | "f12", /* VK_F12 0x7B */ | |
3868 | "f13", /* VK_F13 0x7C */ | |
3869 | "f14", /* VK_F14 0x7D */ | |
3870 | "f15", /* VK_F15 0x7E */ | |
3871 | "f16", /* VK_F16 0x7F */ | |
3872 | "f17", /* VK_F17 0x80 */ | |
3873 | "f18", /* VK_F18 0x81 */ | |
3874 | "f19", /* VK_F19 0x82 */ | |
3875 | "f20", /* VK_F20 0x83 */ | |
3876 | "f21", /* VK_F21 0x84 */ | |
3877 | "f22", /* VK_F22 0x85 */ | |
3878 | "f23", /* VK_F23 0x86 */ | |
3879 | "f24", /* VK_F24 0x87 */ | |
3880 | ||
3881 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3882 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3883 | ||
3884 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3885 | "scroll", /* VK_SCROLL 0x91 */ | |
3886 | ||
e376f90d RS |
3887 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3888 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3889 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3890 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3891 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3892 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3893 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3894 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3895 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3896 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3897 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3898 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3899 | ||
3900 | 0, 0, /* 0x9E .. 0x9F */ | |
3901 | ||
e98a93eb GV |
3902 | /* |
3903 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 3904 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
3905 | * No other API or message will distinguish left and right keys this way. |
3906 | */ | |
3907 | /* 0xA0 .. 0xEF */ | |
3908 | ||
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 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3912 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3913 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3914 | ||
3915 | /* 0xF0 .. 0xF5 */ | |
3916 | ||
3917 | 0, 0, 0, 0, 0, 0, | |
3918 | ||
3919 | "attn", /* VK_ATTN 0xF6 */ | |
3920 | "crsel", /* VK_CRSEL 0xF7 */ | |
3921 | "exsel", /* VK_EXSEL 0xF8 */ | |
3922 | "ereof", /* VK_EREOF 0xF9 */ | |
3923 | "play", /* VK_PLAY 0xFA */ | |
3924 | "zoom", /* VK_ZOOM 0xFB */ | |
3925 | "noname", /* VK_NONAME 0xFC */ | |
3926 | "pa1", /* VK_PA1 0xFD */ | |
3927 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 3928 | 0 /* 0xFF */ |
e98a93eb GV |
3929 | }; |
3930 | ||
04f215f0 | 3931 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3932 | |
37cd9f30 KH |
3933 | #ifdef XK_kana_A |
3934 | static char *lispy_kana_keys[] = | |
3935 | { | |
3936 | /* X Keysym value */ | |
3937 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3938 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3939 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3940 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3941 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3942 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3943 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3944 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3945 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3946 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3947 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3948 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3949 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3950 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3951 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3952 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3953 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3954 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3955 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3956 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3957 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3958 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3959 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3960 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3961 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3962 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3963 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3964 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3965 | }; | |
3966 | #endif /* XK_kana_A */ | |
3967 | ||
04f215f0 RS |
3968 | #define FUNCTION_KEY_OFFSET 0xff00 |
3969 | ||
284f4730 JB |
3970 | /* You'll notice that this table is arranged to be conveniently |
3971 | indexed by X Windows keysym values. */ | |
3972 | static char *lispy_function_keys[] = | |
3973 | { | |
3974 | /* X Keysym value */ | |
3975 | ||
75045dcb RS |
3976 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
3977 | "backspace", "tab", "linefeed", "clear", | |
3978 | 0, "return", 0, 0, | |
3979 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
3980 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 3981 | 0, 0, 0, 0, |
75045dcb RS |
3982 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
3983 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
3984 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
3985 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
3986 | "eisu-toggle", /* 0xff30...3f */ | |
3987 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
3988 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
3989 | ||
75045dcb RS |
3990 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
3991 | "down", "prior", "next", "end", | |
3992 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3993 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
3994 | "print", | |
3995 | "execute", | |
3996 | "insert", | |
3997 | 0, /* 0xff64 */ | |
3998 | "undo", | |
3999 | "redo", | |
4000 | "menu", | |
4001 | "find", | |
4002 | "cancel", | |
4003 | "help", | |
4004 | "break", /* 0xff6b */ | |
4005 | ||
75045dcb RS |
4006 | 0, 0, 0, 0, |
4007 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4008 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4009 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4010 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4011 | "kp-tab", /* 0xff89 */ | |
4012 | 0, 0, 0, | |
4013 | "kp-enter", /* 0xff8d */ | |
4014 | 0, 0, 0, | |
4015 | "kp-f1", /* 0xff91 */ | |
4016 | "kp-f2", | |
4017 | "kp-f3", | |
4018 | "kp-f4", | |
872157e7 RS |
4019 | "kp-home", /* 0xff95 */ |
4020 | "kp-left", | |
4021 | "kp-up", | |
4022 | "kp-right", | |
4023 | "kp-down", | |
4024 | "kp-prior", /* kp-page-up */ | |
4025 | "kp-next", /* kp-page-down */ | |
4026 | "kp-end", | |
4027 | "kp-begin", | |
4028 | "kp-insert", | |
4029 | "kp-delete", | |
4030 | 0, /* 0xffa0 */ | |
4031 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4032 | "kp-multiply", /* 0xffaa */ |
4033 | "kp-add", | |
4034 | "kp-separator", | |
4035 | "kp-subtract", | |
4036 | "kp-decimal", | |
4037 | "kp-divide", /* 0xffaf */ | |
4038 | "kp-0", /* 0xffb0 */ | |
4039 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4040 | 0, /* 0xffba */ | |
4041 | 0, 0, | |
4042 | "kp-equal", /* 0xffbd */ | |
4043 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4044 | "f2", |
4045 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4046 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4047 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4048 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4049 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4050 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4051 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4052 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4053 | }; |
284f4730 | 4054 | |
04f215f0 RS |
4055 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4056 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4057 | ||
4058 | static char *iso_lispy_function_keys[] = | |
4059 | { | |
4060 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4061 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4062 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4063 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4064 | "iso-lefttab", /* 0xfe20 */ | |
4065 | "iso-move-line-up", "iso-move-line-down", | |
4066 | "iso-partial-line-up", "iso-partial-line-down", | |
4067 | "iso-partial-space-left", "iso-partial-space-right", | |
4068 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
4069 | "iso-release-margin-left", "iso-release-margin-right", | |
4070 | "iso-release-both-margins", | |
4071 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4072 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4073 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4074 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4075 | }; | |
4076 | ||
4077 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4078 | |
df0f2ba1 | 4079 | static char *lispy_mouse_names[] = |
284f4730 JB |
4080 | { |
4081 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
4082 | }; | |
4083 | ||
07de30b9 GV |
4084 | #ifdef WINDOWSNT |
4085 | /* mouse-wheel events are generated by the wheel on devices such as | |
4086 | the MS Intellimouse. The wheel sits in between the left and right | |
4087 | mouse buttons, and is typically used to scroll or zoom the window | |
4088 | underneath the pointer. mouse-wheel events specify the object on | |
4089 | which they operate, and a delta corresponding to the amount and | |
4090 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4091 | generates a mouse-2 event. */ | |
4092 | static char *lispy_mouse_wheel_names[] = | |
4093 | { | |
4094 | "mouse-wheel" | |
4095 | }; | |
a24dc617 | 4096 | |
07de30b9 GV |
4097 | #endif /* WINDOWSNT */ |
4098 | ||
a24dc617 RS |
4099 | /* drag-n-drop events are generated when a set of selected files are |
4100 | dragged from another application and dropped onto an Emacs window. */ | |
4101 | static char *lispy_drag_n_drop_names[] = | |
4102 | { | |
4103 | "drag-n-drop" | |
4104 | }; | |
4105 | ||
3c370943 | 4106 | /* Scroll bar parts. */ |
4bb994d1 | 4107 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4108 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4109 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4110 | |
3c370943 JB |
4111 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4112 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4113 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4114 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4115 | }; |
4116 | ||
5bf68f6e AS |
4117 | /* User signal events. */ |
4118 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4119 | ||
4120 | Lisp_Object *lispy_user_signals[] = | |
4121 | { | |
4122 | &Qusr1_signal, &Qusr2_signal | |
4123 | }; | |
4124 | ||
4bb994d1 | 4125 | |
7b4aedb9 | 4126 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4127 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4128 | |
4129 | The elements have the form | |
4130 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4131 | where REST is the cdr of a position as it would be reported in the event. | |
4132 | ||
4133 | The make_lispy_event function stores positions here to tell the | |
4134 | difference between click and drag events, and to store the starting | |
4135 | location to be included in drag events. */ | |
4136 | ||
4137 | static Lisp_Object button_down_location; | |
88cb0656 | 4138 | |
fbcd35bd JB |
4139 | /* Information about the most recent up-going button event: Which |
4140 | button, what location, and what time. */ | |
4141 | ||
559f9d04 RS |
4142 | static int last_mouse_button; |
4143 | static int last_mouse_x; | |
4144 | static int last_mouse_y; | |
4145 | static unsigned long button_down_time; | |
fbcd35bd | 4146 | |
564dc952 JB |
4147 | /* The maximum time between clicks to make a double-click, |
4148 | or Qnil to disable double-click detection, | |
4149 | or Qt for no time limit. */ | |
4150 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
4151 | |
4152 | /* The number of clicks in this multiple-click. */ | |
4153 | ||
4154 | int double_click_count; | |
4155 | ||
284f4730 JB |
4156 | /* Given a struct input_event, build the lisp event which represents |
4157 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4158 | movement buffer, which should have a movement event in it. |
4159 | ||
4160 | Note that events must be passed to this function in the order they | |
4161 | are received; this function stores the location of button presses | |
4162 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4163 | |
4164 | static Lisp_Object | |
4165 | make_lispy_event (event) | |
4166 | struct input_event *event; | |
4167 | { | |
79a7046c RS |
4168 | int i; |
4169 | ||
0220c518 | 4170 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4171 | { |
284f4730 JB |
4172 | /* A simple keystroke. */ |
4173 | case ascii_keystroke: | |
86e5706b | 4174 | { |
9343ab07 | 4175 | Lisp_Object lispy_c; |
e9bf89a0 | 4176 | int c = event->code & 0377; |
5a1c6df8 JB |
4177 | /* Turn ASCII characters into control characters |
4178 | when proper. */ | |
4179 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4180 | c = make_ctrl_char (c); |
4181 | ||
4182 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4183 | just above, and the shift key was taken care of by the X code, | |
4184 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4185 | c |= (event->modifiers |
4186 | & (meta_modifier | alt_modifier | |
4187 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4188 | /* Distinguish Shift-SPC from SPC. */ |
4189 | if ((event->code & 0377) == 040 | |
4190 | && event->modifiers & shift_modifier) | |
4191 | c |= shift_modifier; | |
559f9d04 | 4192 | button_down_time = 0; |
bb9e9bed | 4193 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4194 | return lispy_c; |
86e5706b | 4195 | } |
284f4730 JB |
4196 | |
4197 | /* A function key. The symbol may need to have modifier prefixes | |
4198 | tacked onto it. */ | |
4199 | case non_ascii_keystroke: | |
559f9d04 | 4200 | button_down_time = 0; |
e9bf89a0 RS |
4201 | |
4202 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4203 | if (event->code == lispy_accent_codes[i]) | |
4204 | return modify_event_symbol (i, | |
4205 | event->modifiers, | |
80e4aa30 | 4206 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4207 | lispy_accent_keys, &accent_key_syms, |
4208 | (sizeof (lispy_accent_keys) | |
4209 | / sizeof (lispy_accent_keys[0]))); | |
4210 | ||
270a208f | 4211 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4212 | if (event->code & (1 << 28)) |
4213 | { | |
4214 | /* We need to use an alist rather than a vector as the cache | |
4215 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4216 | if (NILP (current_kboard->system_key_syms)) |
4217 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4218 | return modify_event_symbol (event->code, |
80e4aa30 | 4219 | event->modifiers, |
7c97ffdc KH |
4220 | Qfunction_key, |
4221 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4222 | 0, ¤t_kboard->system_key_syms, |
4223 | (unsigned)-1); | |
80e4aa30 RS |
4224 | } |
4225 | ||
37cd9f30 KH |
4226 | #ifdef XK_kana_A |
4227 | if (event->code >= 0x400 && event->code < 0x500) | |
4228 | return modify_event_symbol (event->code - 0x400, | |
4229 | event->modifiers & ~shift_modifier, | |
4230 | Qfunction_key, Qnil, | |
4231 | lispy_kana_keys, &func_key_syms, | |
4232 | (sizeof (lispy_kana_keys) | |
4233 | / sizeof (lispy_kana_keys[0]))); | |
4234 | #endif /* XK_kana_A */ | |
4235 | ||
111c4138 | 4236 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4237 | if (event->code < FUNCTION_KEY_OFFSET |
4238 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4239 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4240 | event->modifiers, | |
4241 | Qfunction_key, Qnil, | |
4242 | iso_lispy_function_keys, &func_key_syms, | |
4243 | (sizeof (iso_lispy_function_keys) | |
4244 | / sizeof (iso_lispy_function_keys[0]))); | |
4245 | else | |
111c4138 | 4246 | #endif |
04f215f0 RS |
4247 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4248 | event->modifiers, | |
4249 | Qfunction_key, Qnil, | |
4250 | lispy_function_keys, &func_key_syms, | |
4251 | (sizeof (lispy_function_keys) | |
4252 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4253 | |
514354e9 | 4254 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4255 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4256 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4257 | case mouse_click: |
7ee32cda | 4258 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4259 | case scroll_bar_click: |
7ee32cda | 4260 | #endif |
284f4730 | 4261 | { |
e9bf89a0 | 4262 | int button = event->code; |
559f9d04 | 4263 | int is_double; |
7b4aedb9 | 4264 | Lisp_Object position; |
dbc4e1c1 JB |
4265 | Lisp_Object *start_pos_ptr; |
4266 | Lisp_Object start_pos; | |
284f4730 | 4267 | |
7b4aedb9 | 4268 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
4269 | abort (); |
4270 | ||
7b4aedb9 JB |
4271 | /* Build the position as appropriate for this mouse click. */ |
4272 | if (event->kind == mouse_click) | |
284f4730 | 4273 | { |
7b4aedb9 | 4274 | int part; |
598a9fa7 | 4275 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4276 | Lisp_Object window; |
7b4aedb9 | 4277 | Lisp_Object posn; |
7ee32cda | 4278 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4279 | int row, column; |
4280 | ||
5da3133a RS |
4281 | /* Ignore mouse events that were made on frame that |
4282 | have been deleted. */ | |
4283 | if (! FRAME_LIVE_P (f)) | |
4284 | return Qnil; | |
4285 | ||
7ee32cda GM |
4286 | /* EVENT->x and EVENT->y are frame-relative pixel |
4287 | coordinates at this place. Under old redisplay, COLUMN | |
4288 | and ROW are set to frame relative glyph coordinates | |
4289 | which are then used to determine whether this click is | |
4290 | in a menu (non-toolkit version). */ | |
4291 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4292 | &column, &row, NULL, 1); | |
7b4aedb9 | 4293 | |
eef045bf RS |
4294 | #ifndef USE_X_TOOLKIT |
4295 | /* In the non-toolkit version, clicks on the menu bar | |
4296 | are ordinary button events in the event buffer. | |
4297 | Distinguish them, and invoke the menu. | |
4298 | ||
4299 | (In the toolkit version, the toolkit handles the menu bar | |
4300 | and Emacs doesn't know about it until after the user | |
4301 | makes a selection.) */ | |
2ee250ec RS |
4302 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4303 | && (event->modifiers & down_modifier)) | |
bb936752 | 4304 | { |
b7c49376 | 4305 | Lisp_Object items, item; |
0a0e8fe6 RS |
4306 | int hpos; |
4307 | int i; | |
4308 | ||
2ee250ec | 4309 | #if 0 |
0a0e8fe6 RS |
4310 | /* Activate the menu bar on the down event. If the |
4311 | up event comes in before the menu code can deal with it, | |
4312 | just ignore it. */ | |
4313 | if (! (event->modifiers & down_modifier)) | |
4314 | return Qnil; | |
2ee250ec | 4315 | #endif |
0aafc975 | 4316 | |
7ee32cda | 4317 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4318 | item = Qnil; |
5ec75a55 | 4319 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4320 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4321 | { |
4322 | Lisp_Object pos, string; | |
b7c49376 | 4323 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 4324 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
4325 | if (NILP (string)) |
4326 | break; | |
9e20143a RS |
4327 | if (column >= XINT (pos) |
4328 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
4329 | { |
4330 | item = XVECTOR (items)->contents[i]; | |
4331 | break; | |
4332 | } | |
5ec75a55 | 4333 | } |
9e20143a | 4334 | |
7ee32cda GM |
4335 | /* ELisp manual 2.4b says (x y) are window relative but |
4336 | code says they are frame-relative. */ | |
5ec75a55 RS |
4337 | position |
4338 | = Fcons (event->frame_or_window, | |
4339 | Fcons (Qmenu_bar, | |
4340 | Fcons (Fcons (event->x, event->y), | |
4341 | Fcons (make_number (event->timestamp), | |
4342 | Qnil)))); | |
4343 | ||
b7c49376 | 4344 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4345 | } |
eef045bf | 4346 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4347 | |
7ee32cda GM |
4348 | /* Set `window' to the window under frame pixel coordinates |
4349 | event->x/event->y. */ | |
4350 | window = window_from_coordinates (f, XINT (event->x), | |
4351 | XINT (event->y), &part, 0); | |
0aafc975 | 4352 | |
8c18cbfb | 4353 | if (!WINDOWP (window)) |
78ced549 RS |
4354 | { |
4355 | window = event->frame_or_window; | |
4356 | posn = Qnil; | |
4357 | } | |
284f4730 | 4358 | else |
7b4aedb9 | 4359 | { |
7ee32cda GM |
4360 | /* It's a click in window window at frame coordinates |
4361 | event->x/ event->y. */ | |
4362 | struct window *w = XWINDOW (window); | |
4363 | ||
4364 | /* Get window relative coordinates. Original code | |
4365 | `rounded' this to glyph boundaries. */ | |
4366 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4367 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4368 | ||
4369 | /* Set event coordinates to window-relative coordinates | |
4370 | for constructing the Lisp event below. */ | |
4371 | XSETINT (event->x, wx); | |
4372 | XSETINT (event->y, wy); | |
4373 | ||
4374 | if (part == 1 || part == 3) | |
4375 | { | |
4376 | /* Mode line or top line. Look for a string under | |
4377 | the mouse that may have a `local-map' property. */ | |
4378 | Lisp_Object string; | |
4379 | int charpos; | |
4380 | ||
045dee35 | 4381 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4382 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4383 | if (STRINGP (string)) | |
4384 | string_info = Fcons (string, make_number (charpos)); | |
4385 | } | |
7b4aedb9 JB |
4386 | else if (part == 2) |
4387 | posn = Qvertical_line; | |
4388 | else | |
7ee32cda | 4389 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
7b4aedb9 JB |
4390 | } |
4391 | ||
5ec75a55 RS |
4392 | position |
4393 | = Fcons (window, | |
4394 | Fcons (posn, | |
4395 | Fcons (Fcons (event->x, event->y), | |
4396 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4397 | (NILP (string_info) |
4398 | ? Qnil | |
4399 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4400 | } |
7ee32cda | 4401 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4402 | else |
88cb0656 | 4403 | { |
7ee32cda | 4404 | /* It's a scrollbar click. */ |
9e20143a RS |
4405 | Lisp_Object window; |
4406 | Lisp_Object portion_whole; | |
4407 | Lisp_Object part; | |
4408 | ||
4409 | window = event->frame_or_window; | |
4410 | portion_whole = Fcons (event->x, event->y); | |
4411 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4412 | |
db08707d RS |
4413 | position |
4414 | = Fcons (window, | |
4415 | Fcons (Qvertical_scroll_bar, | |
4416 | Fcons (portion_whole, | |
4417 | Fcons (make_number (event->timestamp), | |
4418 | Fcons (part, Qnil))))); | |
88cb0656 | 4419 | } |
7ee32cda | 4420 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4421 | |
dbc4e1c1 JB |
4422 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
4423 | ||
4424 | start_pos = *start_pos_ptr; | |
4425 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4426 | |
559f9d04 RS |
4427 | is_double = (button == last_mouse_button |
4428 | && XINT (event->x) == last_mouse_x | |
4429 | && XINT (event->y) == last_mouse_y | |
4430 | && button_down_time != 0 | |
4431 | && (EQ (Vdouble_click_time, Qt) | |
4432 | || (INTEGERP (Vdouble_click_time) | |
4433 | && ((int)(event->timestamp - button_down_time) | |
4434 | < XINT (Vdouble_click_time))))); | |
4435 | last_mouse_button = button; | |
4436 | last_mouse_x = XINT (event->x); | |
4437 | last_mouse_y = XINT (event->y); | |
4438 | ||
7b4aedb9 JB |
4439 | /* If this is a button press, squirrel away the location, so |
4440 | we can decide later whether it was a click or a drag. */ | |
4441 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4442 | { |
4443 | if (is_double) | |
4444 | { | |
4445 | double_click_count++; | |
4446 | event->modifiers |= ((double_click_count > 2) | |
4447 | ? triple_modifier | |
4448 | : double_modifier); | |
4449 | } | |
4450 | else | |
4451 | double_click_count = 1; | |
4452 | button_down_time = event->timestamp; | |
4453 | *start_pos_ptr = Fcopy_alist (position); | |
4454 | } | |
7b4aedb9 | 4455 | |
88cb0656 | 4456 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4457 | see if this was a click or a drag. */ |
88cb0656 JB |
4458 | else if (event->modifiers & up_modifier) |
4459 | { | |
48e416d4 RS |
4460 | /* If we did not see a down before this up, |
4461 | ignore the up. Probably this happened because | |
4462 | the down event chose a menu item. | |
4463 | It would be an annoyance to treat the release | |
4464 | of the button that chose the menu item | |
4465 | as a separate event. */ | |
4466 | ||
8c18cbfb | 4467 | if (!CONSP (start_pos)) |
48e416d4 RS |
4468 | return Qnil; |
4469 | ||
88cb0656 | 4470 | event->modifiers &= ~up_modifier; |
48e416d4 | 4471 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4472 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4473 | event->modifiers |= click_modifier; |
4474 | else | |
48e416d4 | 4475 | #endif |
dbc4e1c1 JB |
4476 | { |
4477 | /* The third element of every position should be the (x,y) | |
4478 | pair. */ | |
9b8eb840 | 4479 | Lisp_Object down; |
dbc4e1c1 | 4480 | |
9b8eb840 | 4481 | down = Fnth (make_number (2), start_pos); |
7539e11f KR |
4482 | if (EQ (event->x, XCAR (down)) |
4483 | && EQ (event->y, XCDR (down))) | |
fbcd35bd | 4484 | { |
bc536d84 | 4485 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4486 | } |
4487 | else | |
4488 | { | |
559f9d04 | 4489 | button_down_time = 0; |
fbcd35bd JB |
4490 | event->modifiers |= drag_modifier; |
4491 | } | |
bc536d84 RS |
4492 | /* Don't check is_double; treat this as multiple |
4493 | if the down-event was multiple. */ | |
4494 | if (double_click_count > 1) | |
4495 | event->modifiers |= ((double_click_count > 2) | |
4496 | ? triple_modifier | |
4497 | : double_modifier); | |
dbc4e1c1 | 4498 | } |
88cb0656 JB |
4499 | } |
4500 | else | |
4501 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4502 | the up_modifier set. */ |
88cb0656 JB |
4503 | abort (); |
4504 | ||
88cb0656 | 4505 | { |
7b4aedb9 | 4506 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4507 | Lisp_Object head; |
4508 | ||
4509 | head = modify_event_symbol (button, | |
4510 | event->modifiers, | |
4511 | Qmouse_click, Qnil, | |
4512 | lispy_mouse_names, &mouse_syms, | |
4513 | (sizeof (lispy_mouse_names) | |
4514 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4515 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4516 | return Fcons (head, |
4517 | Fcons (start_pos, | |
4518 | Fcons (position, | |
4519 | Qnil))); | |
fbcd35bd JB |
4520 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4521 | return Fcons (head, | |
4522 | Fcons (position, | |
4523 | Fcons (make_number (double_click_count), | |
4524 | Qnil))); | |
88cb0656 JB |
4525 | else |
4526 | return Fcons (head, | |
7b4aedb9 | 4527 | Fcons (position, |
88cb0656 JB |
4528 | Qnil)); |
4529 | } | |
284f4730 | 4530 | } |
db08707d | 4531 | |
7ee32cda GM |
4532 | #if USE_TOOLKIT_SCROLL_BARS |
4533 | ||
4534 | /* We don't have down and up events if using toolkit scroll bars, | |
4535 | so make this always a click event. Store in the `part' of | |
4536 | the Lisp event a symbol which maps to the following actions: | |
4537 | ||
4538 | `above_handle' page up | |
4539 | `below_handle' page down | |
4540 | `up' line up | |
4541 | `down' line down | |
4542 | `top' top of buffer | |
4543 | `bottom' bottom of buffer | |
4544 | `handle' thumb has been dragged. | |
4545 | `end-scroll' end of interaction with scroll bar | |
4546 | ||
4547 | The incoming input_event contains in its `part' member an | |
4548 | index of type `enum scroll_bar_part' which we can use as an | |
4549 | index in scroll_bar_parts to get the appropriate symbol. */ | |
4550 | ||
4551 | case scroll_bar_click: | |
4552 | { | |
4553 | Lisp_Object position, head, window, portion_whole, part; | |
4554 | ||
4555 | window = event->frame_or_window; | |
4556 | portion_whole = Fcons (event->x, event->y); | |
4557 | part = *scroll_bar_parts[(int) event->part]; | |
4558 | ||
4559 | position | |
4560 | = Fcons (window, | |
4561 | Fcons (Qvertical_scroll_bar, | |
4562 | Fcons (portion_whole, | |
4563 | Fcons (make_number (event->timestamp), | |
4564 | Fcons (part, Qnil))))); | |
4565 | ||
4566 | /* Always treat scroll bar events as clicks. */ | |
4567 | event->modifiers |= click_modifier; | |
4568 | ||
4569 | /* Get the symbol we should use for the mouse click. */ | |
4570 | head = modify_event_symbol (event->code, | |
4571 | event->modifiers, | |
4572 | Qmouse_click, Qnil, | |
4573 | lispy_mouse_names, &mouse_syms, | |
4574 | (sizeof (lispy_mouse_names) | |
4575 | / sizeof (lispy_mouse_names[0]))); | |
4576 | return Fcons (head, Fcons (position, Qnil)); | |
4577 | } | |
4578 | ||
4579 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
4580 | ||
db08707d | 4581 | #ifdef WINDOWSNT |
fbd6baed | 4582 | case w32_scroll_bar_click: |
db08707d RS |
4583 | { |
4584 | int button = event->code; | |
4585 | int is_double; | |
4586 | Lisp_Object position; | |
4587 | Lisp_Object *start_pos_ptr; | |
4588 | Lisp_Object start_pos; | |
4589 | ||
4590 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4591 | abort (); | |
4592 | ||
4593 | { | |
4594 | Lisp_Object window; | |
4595 | Lisp_Object portion_whole; | |
4596 | Lisp_Object part; | |
4597 | ||
4598 | window = event->frame_or_window; | |
4599 | portion_whole = Fcons (event->x, event->y); | |
4600 | part = *scroll_bar_parts[(int) event->part]; | |
4601 | ||
e8886a1d RS |
4602 | position |
4603 | = Fcons (window, | |
4604 | Fcons (Qvertical_scroll_bar, | |
4605 | Fcons (portion_whole, | |
4606 | Fcons (make_number (event->timestamp), | |
4607 | Fcons (part, Qnil))))); | |
db08707d RS |
4608 | } |
4609 | ||
fbd6baed | 4610 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4611 | event->modifiers |= click_modifier; |
4612 | ||
4613 | { | |
4614 | /* Get the symbol we should use for the mouse click. */ | |
4615 | Lisp_Object head; | |
4616 | ||
4617 | head = modify_event_symbol (button, | |
4618 | event->modifiers, | |
4619 | Qmouse_click, Qnil, | |
4620 | lispy_mouse_names, &mouse_syms, | |
4621 | (sizeof (lispy_mouse_names) | |
4622 | / sizeof (lispy_mouse_names[0]))); | |
4623 | return Fcons (head, | |
4624 | Fcons (position, | |
4625 | Qnil)); | |
4626 | } | |
4627 | } | |
07de30b9 GV |
4628 | case mouse_wheel: |
4629 | { | |
4630 | int part; | |
4631 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4632 | Lisp_Object window; | |
4633 | Lisp_Object posn; | |
4634 | Lisp_Object head, position; | |
4635 | int row, column; | |
4636 | ||
4637 | /* Ignore mouse events that were made on frame that | |
4638 | have been deleted. */ | |
4639 | if (! FRAME_LIVE_P (f)) | |
4640 | return Qnil; | |
4641 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4642 | &column, &row, NULL, 1); | |
7ee32cda | 4643 | window = window_from_coordinates (f, column, row, &part, 0); |
07de30b9 GV |
4644 | |
4645 | if (!WINDOWP (window)) | |
4646 | { | |
4647 | window = event->frame_or_window; | |
4648 | posn = Qnil; | |
4649 | } | |
4650 | else | |
4651 | { | |
4652 | int pixcolumn, pixrow; | |
4653 | column -= XINT (XWINDOW (window)->left); | |
4654 | row -= XINT (XWINDOW (window)->top); | |
4655 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4656 | XSETINT (event->x, pixcolumn); | |
4657 | XSETINT (event->y, pixrow); | |
4658 | ||
4659 | if (part == 1) | |
4660 | posn = Qmode_line; | |
4661 | else if (part == 2) | |
4662 | posn = Qvertical_line; | |
7ee32cda | 4663 | else if (part == 3) |
045dee35 | 4664 | posn = Qheader_line; |
07de30b9 GV |
4665 | else |
4666 | XSETINT (posn, | |
4667 | buffer_posn_from_coords (XWINDOW (window), | |
4668 | column, row)); | |
4669 | } | |
db08707d | 4670 | |
07de30b9 GV |
4671 | { |
4672 | Lisp_Object head, position; | |
4673 | ||
4674 | position | |
4675 | = Fcons (window, | |
4676 | Fcons (posn, | |
4677 | Fcons (Fcons (event->x, event->y), | |
4678 | Fcons (make_number (event->timestamp), | |
4679 | Qnil)))); | |
4680 | ||
4681 | head = modify_event_symbol (0, event->modifiers, | |
4682 | Qmouse_wheel, Qnil, | |
4683 | lispy_mouse_wheel_names, | |
4684 | &mouse_wheel_syms, 1); | |
4685 | return Fcons (head, | |
4686 | Fcons (position, | |
4687 | Fcons (make_number (event->code), | |
4688 | Qnil))); | |
4689 | } | |
4690 | } | |
4691 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
4692 | |
4693 | case drag_n_drop: | |
4694 | { | |
4695 | int part; | |
4696 | FRAME_PTR f; | |
4697 | Lisp_Object window; | |
4698 | Lisp_Object posn; | |
a24dc617 RS |
4699 | Lisp_Object files; |
4700 | int row, column; | |
4701 | ||
4702 | /* The frame_or_window field should be a cons of the frame in | |
4703 | which the event occurred and a list of the filenames | |
4704 | dropped. */ | |
4705 | if (! CONSP (event->frame_or_window)) | |
4706 | abort (); | |
4707 | ||
7539e11f KR |
4708 | f = XFRAME (XCAR (event->frame_or_window)); |
4709 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
4710 | |
4711 | /* Ignore mouse events that were made on frames that | |
4712 | have been deleted. */ | |
4713 | if (! FRAME_LIVE_P (f)) | |
4714 | return Qnil; | |
4715 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4716 | &column, &row, NULL, 1); | |
7ee32cda | 4717 | window = window_from_coordinates (f, column, row, &part, 0); |
a24dc617 RS |
4718 | |
4719 | if (!WINDOWP (window)) | |
4720 | { | |
7539e11f | 4721 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
4722 | posn = Qnil; |
4723 | } | |
4724 | else | |
4725 | { | |
7ee32cda GM |
4726 | /* It's an event in window `window' at frame coordinates |
4727 | event->x/ event->y. */ | |
4728 | struct window *w = XWINDOW (window); | |
4729 | ||
4730 | /* Get window relative coordinates. */ | |
4731 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4732 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4733 | ||
4734 | /* Set event coordinates to window-relative coordinates | |
4735 | for constructing the Lisp event below. */ | |
4736 | XSETINT (event->x, wx); | |
4737 | XSETINT (event->y, wy); | |
a24dc617 RS |
4738 | |
4739 | if (part == 1) | |
4740 | posn = Qmode_line; | |
4741 | else if (part == 2) | |
4742 | posn = Qvertical_line; | |
7ee32cda | 4743 | else if (part == 3) |
045dee35 | 4744 | posn = Qheader_line; |
a24dc617 | 4745 | else |
7ee32cda | 4746 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
a24dc617 RS |
4747 | } |
4748 | ||
4749 | { | |
4750 | Lisp_Object head, position; | |
4751 | ||
4752 | position | |
4753 | = Fcons (window, | |
4754 | Fcons (posn, | |
4755 | Fcons (Fcons (event->x, event->y), | |
4756 | Fcons (make_number (event->timestamp), | |
4757 | Qnil)))); | |
4758 | ||
4759 | head = modify_event_symbol (0, event->modifiers, | |
4760 | Qdrag_n_drop, Qnil, | |
4761 | lispy_drag_n_drop_names, | |
4762 | &drag_n_drop_syms, 1); | |
4763 | return Fcons (head, | |
4764 | Fcons (position, | |
4765 | Fcons (files, | |
4766 | Qnil))); | |
4767 | } | |
4768 | } | |
514354e9 | 4769 | #endif /* HAVE_MOUSE */ |
284f4730 | 4770 | |
e98a93eb | 4771 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4772 | case menu_bar_event: |
4773 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4774 | if (!CONSP (event->frame_or_window)) | |
4775 | abort (); | |
7539e11f | 4776 | return XCDR (event->frame_or_window); |
2470a66f KH |
4777 | #endif |
4778 | ||
9ea173e8 | 4779 | case TOOL_BAR_EVENT: |
7ee32cda GM |
4780 | { |
4781 | Lisp_Object key; | |
4782 | if (!CONSP (event->frame_or_window)) | |
4783 | abort (); | |
4784 | key = XCDR (event->frame_or_window); | |
4785 | if (SYMBOLP (key)) | |
4786 | key = apply_modifiers (event->modifiers, key); | |
4787 | return key; | |
4788 | } | |
4789 | ||
5bf68f6e AS |
4790 | case user_signal: |
4791 | /* A user signal. */ | |
4792 | return *lispy_user_signals[event->code]; | |
4793 | ||
284f4730 JB |
4794 | /* The 'kind' field of the event is something we don't recognize. */ |
4795 | default: | |
48e416d4 | 4796 | abort (); |
284f4730 JB |
4797 | } |
4798 | } | |
4799 | ||
514354e9 | 4800 | #ifdef HAVE_MOUSE |
6cbff1cb | 4801 | |
284f4730 | 4802 | static Lisp_Object |
7b4aedb9 | 4803 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4804 | FRAME_PTR frame; |
7b4aedb9 | 4805 | Lisp_Object bar_window; |
3c370943 | 4806 | enum scroll_bar_part part; |
284f4730 | 4807 | Lisp_Object x, y; |
e5d77022 | 4808 | unsigned long time; |
284f4730 | 4809 | { |
3c370943 | 4810 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4811 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4812 | { |
9b8eb840 | 4813 | Lisp_Object part_sym; |
4bb994d1 | 4814 | |
9b8eb840 | 4815 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4816 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4817 | (Fcons (Fcons (bar_window, |
3c370943 | 4818 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4819 | Fcons (Fcons (x, y), |
4820 | Fcons (make_number (time), | |
cb5df6ae | 4821 | Fcons (part_sym, |
4bb994d1 JB |
4822 | Qnil))))), |
4823 | Qnil))); | |
4824 | } | |
4825 | ||
4826 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4827 | else |
4828 | { | |
4bb994d1 | 4829 | int area; |
9e20143a | 4830 | Lisp_Object window; |
4bb994d1 | 4831 | Lisp_Object posn; |
9e20143a | 4832 | |
9e20143a | 4833 | if (frame) |
7ee32cda GM |
4834 | /* It's in a frame; which window on that frame? */ |
4835 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
4836 | else |
4837 | window = Qnil; | |
4bb994d1 | 4838 | |
8c18cbfb | 4839 | if (WINDOWP (window)) |
4bb994d1 | 4840 | { |
7ee32cda | 4841 | struct window *w = XWINDOW (window); |
7ee32cda | 4842 | int wx, wy; |
7ee32cda GM |
4843 | |
4844 | /* Get window relative coordinates. */ | |
4845 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
4846 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
4847 | XSETINT (x, wx); | |
4848 | XSETINT (y, wy); | |
4849 | ||
4bb994d1 JB |
4850 | if (area == 1) |
4851 | posn = Qmode_line; | |
4852 | else if (area == 2) | |
4853 | posn = Qvertical_line; | |
7ee32cda | 4854 | else if (area == 3) |
045dee35 | 4855 | posn = Qheader_line; |
4bb994d1 | 4856 | else |
7ee32cda | 4857 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
4bb994d1 | 4858 | } |
e9bf89a0 RS |
4859 | else if (frame != 0) |
4860 | { | |
18cd2eeb | 4861 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4862 | posn = Qnil; |
4863 | } | |
284f4730 | 4864 | else |
4bb994d1 JB |
4865 | { |
4866 | window = Qnil; | |
4867 | posn = Qnil; | |
bb9e9bed KH |
4868 | XSETFASTINT (x, 0); |
4869 | XSETFASTINT (y, 0); | |
4bb994d1 | 4870 | } |
284f4730 | 4871 | |
4bb994d1 JB |
4872 | return Fcons (Qmouse_movement, |
4873 | Fcons (Fcons (window, | |
4874 | Fcons (posn, | |
4875 | Fcons (Fcons (x, y), | |
4876 | Fcons (make_number (time), | |
4877 | Qnil)))), | |
4878 | Qnil)); | |
4879 | } | |
284f4730 JB |
4880 | } |
4881 | ||
514354e9 | 4882 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4883 | |
cd21b839 JB |
4884 | /* Construct a switch frame event. */ |
4885 | static Lisp_Object | |
4886 | make_lispy_switch_frame (frame) | |
4887 | Lisp_Object frame; | |
4888 | { | |
4889 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4890 | } | |
0a7f1fc0 JB |
4891 | \f |
4892 | /* Manipulating modifiers. */ | |
284f4730 | 4893 | |
0a7f1fc0 | 4894 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4895 | |
0a7f1fc0 JB |
4896 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4897 | SYMBOL's name of the end of the modifiers; the string from this | |
4898 | position is the unmodified symbol name. | |
284f4730 | 4899 | |
0a7f1fc0 | 4900 | This doesn't use any caches. */ |
6da3dd3a | 4901 | |
0a7f1fc0 JB |
4902 | static int |
4903 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4904 | Lisp_Object symbol; |
0a7f1fc0 | 4905 | int *modifier_end; |
284f4730 JB |
4906 | { |
4907 | struct Lisp_String *name; | |
4908 | int i; | |
4909 | int modifiers; | |
284f4730 JB |
4910 | |
4911 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4912 | |
284f4730 JB |
4913 | modifiers = 0; |
4914 | name = XSYMBOL (symbol)->name; | |
4915 | ||
fc932ac6 | 4916 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
4917 | { |
4918 | int this_mod_end = 0; | |
4919 | int this_mod = 0; | |
284f4730 | 4920 | |
6da3dd3a RS |
4921 | /* See if the name continues with a modifier word. |
4922 | Check that the word appears, but don't check what follows it. | |
4923 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4924 | |
6da3dd3a RS |
4925 | switch (name->data[i]) |
4926 | { | |
4927 | #define SINGLE_LETTER_MOD(BIT) \ | |
4928 | (this_mod_end = i + 1, this_mod = BIT) | |
4929 | ||
6da3dd3a RS |
4930 | case 'A': |
4931 | SINGLE_LETTER_MOD (alt_modifier); | |
4932 | break; | |
284f4730 | 4933 | |
6da3dd3a RS |
4934 | case 'C': |
4935 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4936 | break; | |
284f4730 | 4937 | |
6da3dd3a RS |
4938 | case 'H': |
4939 | SINGLE_LETTER_MOD (hyper_modifier); | |
4940 | break; | |
4941 | ||
6da3dd3a RS |
4942 | case 'M': |
4943 | SINGLE_LETTER_MOD (meta_modifier); | |
4944 | break; | |
4945 | ||
6da3dd3a RS |
4946 | case 'S': |
4947 | SINGLE_LETTER_MOD (shift_modifier); | |
4948 | break; | |
4949 | ||
4950 | case 's': | |
6da3dd3a RS |
4951 | SINGLE_LETTER_MOD (super_modifier); |
4952 | break; | |
4953 | ||
0a7f1fc0 | 4954 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4955 | } |
4956 | ||
4957 | /* If we found no modifier, stop looking for them. */ | |
4958 | if (this_mod_end == 0) | |
4959 | break; | |
4960 | ||
4961 | /* Check there is a dash after the modifier, so that it | |
4962 | really is a modifier. */ | |
fc932ac6 RS |
4963 | if (this_mod_end >= STRING_BYTES (name) |
4964 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
4965 | break; |
4966 | ||
4967 | /* This modifier is real; look for another. */ | |
4968 | modifiers |= this_mod; | |
4969 | i = this_mod_end + 1; | |
4970 | } | |
284f4730 | 4971 | |
0a7f1fc0 | 4972 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4973 | if (! (modifiers & (down_modifier | drag_modifier |
4974 | | double_modifier | triple_modifier)) | |
fc932ac6 | 4975 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 4976 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4977 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4978 | modifiers |= click_modifier; |
4979 | ||
4980 | if (modifier_end) | |
4981 | *modifier_end = i; | |
4982 | ||
4983 | return modifiers; | |
4984 | } | |
4985 | ||
0a7f1fc0 JB |
4986 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4987 | prepended to the string BASE[0..BASE_LEN-1]. | |
4988 | This doesn't use any caches. */ | |
4989 | static Lisp_Object | |
301738ed | 4990 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4991 | int modifiers; |
4992 | char *base; | |
301738ed | 4993 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4994 | { |
4995 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4996 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4997 | reference to it. */ | |
301738ed RS |
4998 | char *new_mods |
4999 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5000 | int mod_len; |
284f4730 | 5001 | |
284f4730 | 5002 | { |
0a7f1fc0 JB |
5003 | char *p = new_mods; |
5004 | ||
5005 | /* Only the event queue may use the `up' modifier; it should always | |
5006 | be turned into a click or drag event before presented to lisp code. */ | |
5007 | if (modifiers & up_modifier) | |
5008 | abort (); | |
5009 | ||
5010 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5011 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5012 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5013 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5014 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5015 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5016 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5017 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5018 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5019 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5020 | /* The click modifier is denoted by the absence of other modifiers. */ |
5021 | ||
5022 | *p = '\0'; | |
5023 | ||
5024 | mod_len = p - new_mods; | |
5025 | } | |
284f4730 | 5026 | |
0a7f1fc0 | 5027 | { |
9b8eb840 | 5028 | Lisp_Object new_name; |
df0f2ba1 | 5029 | |
301738ed RS |
5030 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5031 | mod_len + base_len_byte); | |
0a7f1fc0 | 5032 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 5033 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
5034 | |
5035 | return Fintern (new_name, Qnil); | |
5036 | } | |
5037 | } | |
5038 | ||
5039 | ||
0a7f1fc0 JB |
5040 | static char *modifier_names[] = |
5041 | { | |
fbcd35bd | 5042 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5043 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5044 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5045 | }; |
80645119 | 5046 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5047 | |
5048 | static Lisp_Object modifier_symbols; | |
5049 | ||
5050 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5051 | static Lisp_Object | |
5052 | lispy_modifier_list (modifiers) | |
5053 | int modifiers; | |
5054 | { | |
5055 | Lisp_Object modifier_list; | |
5056 | int i; | |
5057 | ||
5058 | modifier_list = Qnil; | |
80645119 | 5059 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5060 | if (modifiers & (1<<i)) |
80645119 JB |
5061 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5062 | modifier_list); | |
0a7f1fc0 JB |
5063 | |
5064 | return modifier_list; | |
5065 | } | |
5066 | ||
5067 | ||
5068 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5069 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5070 | MASK is the set of modifiers present in SYMBOL's name. | |
5071 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5072 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5073 | Qevent_symbol_elements property. */ | |
3d31316f | 5074 | |
1161d367 | 5075 | Lisp_Object |
0a7f1fc0 JB |
5076 | parse_modifiers (symbol) |
5077 | Lisp_Object symbol; | |
5078 | { | |
9b8eb840 | 5079 | Lisp_Object elements; |
0a7f1fc0 | 5080 | |
9b8eb840 | 5081 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5082 | if (CONSP (elements)) |
5083 | return elements; | |
5084 | else | |
5085 | { | |
5086 | int end; | |
ec0faad2 | 5087 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5088 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5089 | Lisp_Object mask; |
5090 | ||
9b8eb840 | 5091 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5092 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5093 | Qnil); |
5094 | ||
ec0faad2 | 5095 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 5096 | abort (); |
bb9e9bed | 5097 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5098 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5099 | ||
5100 | /* Cache the parsing results on SYMBOL. */ | |
5101 | Fput (symbol, Qevent_symbol_element_mask, | |
5102 | elements); | |
5103 | Fput (symbol, Qevent_symbol_elements, | |
5104 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5105 | ||
5106 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5107 | it would be nice to put that in unmodified's cache. | |
5108 | But we can't, since we're not sure that parse_modifiers is | |
5109 | canonical. */ | |
5110 | ||
5111 | return elements; | |
5112 | } | |
5113 | } | |
5114 | ||
5115 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5116 | BASE must be unmodified. | |
5117 | ||
5118 | This is like apply_modifiers_uncached, but uses BASE's | |
5119 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5120 | Qevent_symbol_elements properties, since it has that info anyway. |
5121 | ||
5122 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5123 | the modified symbol. */ | |
0a7f1fc0 JB |
5124 | static Lisp_Object |
5125 | apply_modifiers (modifiers, base) | |
5126 | int modifiers; | |
5127 | Lisp_Object base; | |
5128 | { | |
7b4aedb9 | 5129 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5130 | |
80645119 | 5131 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 5132 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 5133 | |
0a7f1fc0 | 5134 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5135 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5136 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5137 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5138 | |
5139 | if (CONSP (entry)) | |
7539e11f | 5140 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5141 | else |
5142 | { | |
df0f2ba1 | 5143 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5144 | new_symbol = apply_modifiers_uncached (modifiers, |
5145 | XSYMBOL (base)->name->data, | |
301738ed | 5146 | XSYMBOL (base)->name->size, |
fc932ac6 | 5147 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5148 | |
5149 | /* Add the new symbol to the base's cache. */ | |
5150 | entry = Fcons (index, new_symbol); | |
5151 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5152 | ||
5153 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5154 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5155 | Fput (new_symbol, Qevent_symbol_element_mask, |
5156 | Fcons (base, Fcons (index, Qnil))); | |
5157 | Fput (new_symbol, Qevent_symbol_elements, | |
5158 | Fcons (base, lispy_modifier_list (modifiers))); | |
5159 | } | |
0a7f1fc0 | 5160 | |
df0f2ba1 | 5161 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5162 | |
5163 | You'd think we could just set this once and for all when we | |
5164 | intern the symbol above, but reorder_modifiers may call us when | |
5165 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5166 | because it has a Qmodifier_cache property it must have its |
5167 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5168 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5169 | { | |
9b8eb840 | 5170 | Lisp_Object kind; |
7b4aedb9 | 5171 | |
9b8eb840 | 5172 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5173 | if (! NILP (kind)) |
5174 | Fput (new_symbol, Qevent_kind, kind); | |
5175 | } | |
5176 | ||
5177 | return new_symbol; | |
0a7f1fc0 JB |
5178 | } |
5179 | ||
5180 | ||
5181 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5182 | return a symbol with the modifiers placed in the canonical order. | |
5183 | Canonical order is alphabetical, except for down and drag, which | |
5184 | always come last. The 'click' modifier is never written out. | |
5185 | ||
5186 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5187 | and M-C-foo end up being equivalent in the keymap. */ | |
5188 | ||
5189 | Lisp_Object | |
5190 | reorder_modifiers (symbol) | |
5191 | Lisp_Object symbol; | |
5192 | { | |
5193 | /* It's hopefully okay to write the code this way, since everything | |
5194 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5195 | Lisp_Object parsed; |
0a7f1fc0 | 5196 | |
9b8eb840 | 5197 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5198 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5199 | XCAR (parsed)); | |
0a7f1fc0 JB |
5200 | } |
5201 | ||
5202 | ||
284f4730 JB |
5203 | /* For handling events, we often want to produce a symbol whose name |
5204 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5205 | to some base, like the name of a function key or mouse button. | |
5206 | modify_event_symbol produces symbols of this sort. | |
5207 | ||
5208 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5209 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5210 | in the table. | |
5211 | ||
80e4aa30 RS |
5212 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
5213 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
5214 | ||
284f4730 JB |
5215 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5216 | persist between calls to modify_event_symbol that it can use to | |
5217 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5218 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5219 | |
5220 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5221 | |
284f4730 JB |
5222 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5223 | whose prefixes should be applied to the symbol name. | |
5224 | ||
5225 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5226 | the returned symbol. |
88cb0656 JB |
5227 | |
5228 | The symbols we create are supposed to have an | |
eb8c3be9 | 5229 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5230 | in the symbol's name. */ |
5231 | ||
284f4730 | 5232 | static Lisp_Object |
80e4aa30 RS |
5233 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
5234 | name_table, symbol_table, table_size) | |
284f4730 JB |
5235 | int symbol_num; |
5236 | unsigned modifiers; | |
5237 | Lisp_Object symbol_kind; | |
80e4aa30 | 5238 | Lisp_Object name_alist; |
284f4730 JB |
5239 | char **name_table; |
5240 | Lisp_Object *symbol_table; | |
2c834fb3 | 5241 | unsigned int table_size; |
284f4730 | 5242 | { |
80e4aa30 RS |
5243 | Lisp_Object value; |
5244 | Lisp_Object symbol_int; | |
5245 | ||
2c834fb3 KH |
5246 | /* Get rid of the "vendor-specific" bit here. */ |
5247 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5248 | |
5249 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5250 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5251 | return Qnil; |
284f4730 | 5252 | |
80e4aa30 RS |
5253 | if (CONSP (*symbol_table)) |
5254 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5255 | ||
0a7f1fc0 | 5256 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5257 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5258 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5259 | we've never used that symbol before. */ | |
80e4aa30 | 5260 | else |
88cb0656 | 5261 | { |
80e4aa30 RS |
5262 | if (! VECTORP (*symbol_table) |
5263 | || XVECTOR (*symbol_table)->size != table_size) | |
5264 | { | |
5265 | Lisp_Object size; | |
0a7f1fc0 | 5266 | |
bb9e9bed | 5267 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5268 | *symbol_table = Fmake_vector (size, Qnil); |
5269 | } | |
284f4730 | 5270 | |
80e4aa30 RS |
5271 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5272 | } | |
284f4730 | 5273 | |
0a7f1fc0 | 5274 | /* Have we already used this symbol before? */ |
80e4aa30 | 5275 | if (NILP (value)) |
284f4730 | 5276 | { |
0a7f1fc0 | 5277 | /* No; let's create it. */ |
80e4aa30 | 5278 | if (!NILP (name_alist)) |
b64b4075 | 5279 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 5280 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5281 | value = intern (name_table[symbol_num]); |
b64b4075 | 5282 | |
e98a93eb | 5283 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5284 | if (NILP (value)) |
5285 | { | |
5286 | char *name = x_get_keysym_name (symbol_num); | |
5287 | if (name) | |
5288 | value = intern (name); | |
5289 | } | |
5290 | #endif | |
5291 | ||
b64b4075 | 5292 | if (NILP (value)) |
d1f50460 RS |
5293 | { |
5294 | char buf[20]; | |
5295 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5296 | value = intern (buf); |
d1f50460 | 5297 | } |
0a7f1fc0 | 5298 | |
80e4aa30 | 5299 | if (CONSP (*symbol_table)) |
4205cb08 | 5300 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5301 | else |
5302 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5303 | ||
df0f2ba1 | 5304 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5305 | builds the Qevent_symbol_elements property, which the user |
5306 | cares about. */ | |
80e4aa30 RS |
5307 | apply_modifiers (modifiers & click_modifier, value); |
5308 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5309 | } |
88cb0656 | 5310 | |
0a7f1fc0 | 5311 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5312 | return apply_modifiers (modifiers, value); |
284f4730 | 5313 | } |
6da3dd3a RS |
5314 | \f |
5315 | /* Convert a list that represents an event type, | |
5316 | such as (ctrl meta backspace), into the usual representation of that | |
5317 | event type as a number or a symbol. */ | |
5318 | ||
a1706c30 | 5319 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5320 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5321 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5322 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5323 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5324 | The return value is an event type (a character or symbol) which\n\ |
5325 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5326 | (event_desc) |
5327 | Lisp_Object event_desc; | |
6da3dd3a RS |
5328 | { |
5329 | Lisp_Object base; | |
5330 | int modifiers = 0; | |
5331 | Lisp_Object rest; | |
5332 | ||
5333 | base = Qnil; | |
e57d8fd8 | 5334 | rest = event_desc; |
6da3dd3a RS |
5335 | while (CONSP (rest)) |
5336 | { | |
5337 | Lisp_Object elt; | |
5338 | int this = 0; | |
5339 | ||
7539e11f KR |
5340 | elt = XCAR (rest); |
5341 | rest = XCDR (rest); | |
6da3dd3a | 5342 | |
3d31316f | 5343 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5344 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5345 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5346 | |
5347 | if (this != 0) | |
5348 | modifiers |= this; | |
5349 | else if (!NILP (base)) | |
5350 | error ("Two bases given in one event"); | |
5351 | else | |
5352 | base = elt; | |
5353 | ||
6da3dd3a RS |
5354 | } |
5355 | ||
3d31316f RS |
5356 | /* Let the symbol A refer to the character A. */ |
5357 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5358 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5359 | ||
6da3dd3a RS |
5360 | if (INTEGERP (base)) |
5361 | { | |
3d31316f RS |
5362 | /* Turn (shift a) into A. */ |
5363 | if ((modifiers & shift_modifier) != 0 | |
5364 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5365 | { | |
5366 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5367 | modifiers &= ~shift_modifier; | |
5368 | } | |
5369 | ||
5370 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5371 | if (modifiers & ctrl_modifier) |
3d31316f | 5372 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5373 | | make_ctrl_char (XINT (base))); |
5374 | else | |
5375 | return make_number (modifiers | XINT (base)); | |
5376 | } | |
5377 | else if (SYMBOLP (base)) | |
5378 | return apply_modifiers (modifiers, base); | |
5379 | else | |
5380 | error ("Invalid base event"); | |
5381 | } | |
5382 | ||
3d31316f RS |
5383 | /* Try to recognize SYMBOL as a modifier name. |
5384 | Return the modifier flag bit, or 0 if not recognized. */ | |
5385 | ||
5386 | static int | |
5387 | parse_solitary_modifier (symbol) | |
5388 | Lisp_Object symbol; | |
5389 | { | |
5390 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5391 | ||
5392 | switch (name->data[0]) | |
5393 | { | |
5394 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5395 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5396 | return BIT; |
5397 | ||
5398 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5399 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5400 | && ! strncmp (name->data, NAME, LEN)) \ |
5401 | return BIT; | |
5402 | ||
5403 | case 'A': | |
5404 | SINGLE_LETTER_MOD (alt_modifier); | |
5405 | break; | |
5406 | ||
5407 | case 'a': | |
5408 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5409 | break; | |
5410 | ||
5411 | case 'C': | |
5412 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5413 | break; | |
5414 | ||
5415 | case 'c': | |
5416 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5417 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5418 | break; | |
5419 | ||
5420 | case 'H': | |
5421 | SINGLE_LETTER_MOD (hyper_modifier); | |
5422 | break; | |
5423 | ||
5424 | case 'h': | |
5425 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5426 | break; | |
5427 | ||
5428 | case 'M': | |
5429 | SINGLE_LETTER_MOD (meta_modifier); | |
5430 | break; | |
5431 | ||
5432 | case 'm': | |
5433 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5434 | break; | |
5435 | ||
5436 | case 'S': | |
5437 | SINGLE_LETTER_MOD (shift_modifier); | |
5438 | break; | |
5439 | ||
5440 | case 's': | |
5441 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5442 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5443 | SINGLE_LETTER_MOD (super_modifier); | |
5444 | break; | |
5445 | ||
5446 | case 'd': | |
5447 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5448 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5449 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5450 | break; | |
5451 | ||
5452 | case 't': | |
5453 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5454 | break; | |
5455 | ||
5456 | #undef SINGLE_LETTER_MOD | |
5457 | #undef MULTI_LETTER_MOD | |
5458 | } | |
5459 | ||
5460 | return 0; | |
5461 | } | |
5462 | ||
6da3dd3a RS |
5463 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5464 | Such a list is not valid as an event, | |
5465 | but it can be a Lucid-style event type list. */ | |
5466 | ||
5467 | int | |
5468 | lucid_event_type_list_p (object) | |
5469 | Lisp_Object object; | |
5470 | { | |
5471 | Lisp_Object tail; | |
5472 | ||
5473 | if (! CONSP (object)) | |
5474 | return 0; | |
5475 | ||
7539e11f | 5476 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
5477 | { |
5478 | Lisp_Object elt; | |
7539e11f | 5479 | elt = XCAR (tail); |
6da3dd3a RS |
5480 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
5481 | return 0; | |
5482 | } | |
5483 | ||
5484 | return NILP (tail); | |
5485 | } | |
284f4730 | 5486 | \f |
284f4730 JB |
5487 | /* Store into *addr a value nonzero if terminal input chars are available. |
5488 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5489 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5490 | (In fact, this may actually read some input.) |
5491 | ||
5492 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5493 | |
5494 | static void | |
d9d4c147 | 5495 | get_input_pending (addr, do_timers_now) |
284f4730 | 5496 | int *addr; |
d9d4c147 | 5497 | int do_timers_now; |
284f4730 JB |
5498 | { |
5499 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5500 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5501 | |
5502 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5503 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5504 | return; | |
5505 | ||
5506 | /* Try to read some input and see how much we get. */ | |
5507 | gobble_input (0); | |
d9d4c147 | 5508 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5509 | } |
5510 | ||
81931ba1 | 5511 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 5512 | |
07a59269 | 5513 | void |
284f4730 JB |
5514 | gobble_input (expected) |
5515 | int expected; | |
5516 | { | |
5517 | #ifndef VMS | |
5518 | #ifdef SIGIO | |
5519 | if (interrupt_input) | |
5520 | { | |
32676c08 | 5521 | SIGMASKTYPE mask; |
4f8aaa74 | 5522 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 5523 | read_avail_input (expected); |
e065a56e | 5524 | sigsetmask (mask); |
284f4730 JB |
5525 | } |
5526 | else | |
81931ba1 RS |
5527 | #ifdef POLL_FOR_INPUT |
5528 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
5529 | { | |
5530 | SIGMASKTYPE mask; | |
4f8aaa74 | 5531 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
5532 | read_avail_input (expected); |
5533 | sigsetmask (mask); | |
5534 | } | |
5535 | else | |
87485d6f | 5536 | #endif |
284f4730 JB |
5537 | #endif |
5538 | read_avail_input (expected); | |
5539 | #endif | |
5540 | } | |
a8015ab5 | 5541 | |
241ceaf7 RS |
5542 | /* Put a buffer_switch_event in the buffer |
5543 | so that read_key_sequence will notice the new current buffer. */ | |
5544 | ||
07a59269 | 5545 | void |
a8015ab5 KH |
5546 | record_asynch_buffer_change () |
5547 | { | |
5548 | struct input_event event; | |
a30f0615 RS |
5549 | Lisp_Object tem; |
5550 | ||
a8015ab5 KH |
5551 | event.kind = buffer_switch_event; |
5552 | event.frame_or_window = Qnil; | |
241ceaf7 | 5553 | |
f65e6f7d | 5554 | #ifdef subprocesses |
a30f0615 RS |
5555 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
5556 | The purpose of the event is to make read_key_sequence look up the | |
5557 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
5558 | and the event could cause trouble by messing up (input-pending-p). */ | |
5559 | tem = Fwaiting_for_user_input_p (); | |
5560 | if (NILP (tem)) | |
5561 | return; | |
f65e6f7d RS |
5562 | #else |
5563 | /* We never need these events if we have no asynchronous subprocesses. */ | |
5564 | return; | |
5565 | #endif | |
a30f0615 | 5566 | |
241ceaf7 RS |
5567 | /* Make sure no interrupt happens while storing the event. */ |
5568 | #ifdef SIGIO | |
5569 | if (interrupt_input) | |
5570 | { | |
5571 | SIGMASKTYPE mask; | |
4f8aaa74 | 5572 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
5573 | kbd_buffer_store_event (&event); |
5574 | sigsetmask (mask); | |
5575 | } | |
5576 | else | |
5577 | #endif | |
5578 | { | |
5579 | stop_polling (); | |
5580 | kbd_buffer_store_event (&event); | |
5581 | start_polling (); | |
5582 | } | |
a8015ab5 | 5583 | } |
284f4730 JB |
5584 | \f |
5585 | #ifndef VMS | |
5586 | ||
5587 | /* Read any terminal input already buffered up by the system | |
5588 | into the kbd_buffer, but do not wait. | |
5589 | ||
5590 | EXPECTED should be nonzero if the caller knows there is some input. | |
5591 | ||
5592 | Except on VMS, all input is read by this function. | |
5593 | If interrupt_input is nonzero, this function MUST be called | |
5594 | only when SIGIO is blocked. | |
5595 | ||
5596 | Returns the number of keyboard chars read, or -1 meaning | |
5597 | this is a bad time to try to read input. */ | |
5598 | ||
5599 | static int | |
5600 | read_avail_input (expected) | |
5601 | int expected; | |
5602 | { | |
5603 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5604 | register int i; | |
5605 | int nread; | |
5606 | ||
5607 | if (read_socket_hook) | |
5608 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5609 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5610 | else |
5611 | { | |
17270835 RS |
5612 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5613 | the kbd_buffer can really hold. That may prevent loss | |
5614 | of characters on some systems when input is stuffed at us. */ | |
5615 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5616 | int n_to_read; |
284f4730 | 5617 | |
58788063 | 5618 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5619 | #ifdef WINDOWSNT |
5620 | return 0; | |
5621 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5622 | #ifdef MSDOS |
58788063 RS |
5623 | n_to_read = dos_keysns (); |
5624 | if (n_to_read == 0) | |
5625 | return 0; | |
c3a2738c | 5626 | #else /* not MSDOS */ |
284f4730 JB |
5627 | #ifdef FIONREAD |
5628 | /* Find out how much input is available. */ | |
437f6112 | 5629 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5630 | /* Formerly simply reported no input, but that sometimes led to |
5631 | a failure of Emacs to terminate. | |
5632 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5633 | /* ??? Is it really right to send the signal just to this process |
5634 | rather than to the whole process group? | |
5635 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5636 | kill (getpid (), SIGHUP); |
58788063 | 5637 | if (n_to_read == 0) |
284f4730 | 5638 | return 0; |
58788063 RS |
5639 | if (n_to_read > sizeof cbuf) |
5640 | n_to_read = sizeof cbuf; | |
284f4730 | 5641 | #else /* no FIONREAD */ |
0c04a67e | 5642 | #if defined (USG) || defined (DGUX) |
284f4730 | 5643 | /* Read some input if available, but don't wait. */ |
58788063 | 5644 | n_to_read = sizeof cbuf; |
437f6112 | 5645 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5646 | #else |
5647 | you lose; | |
5648 | #endif | |
5649 | #endif | |
80e4aa30 | 5650 | #endif /* not MSDOS */ |
bc536d84 | 5651 | #endif /* not WINDOWSNT */ |
284f4730 | 5652 | |
58788063 RS |
5653 | /* Now read; for one reason or another, this will not block. |
5654 | NREAD is set to the number of chars read. */ | |
9134775b | 5655 | do |
284f4730 | 5656 | { |
80e4aa30 | 5657 | #ifdef MSDOS |
0c04a67e | 5658 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5659 | nread = 1; |
5660 | #else | |
68c45bf0 | 5661 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5662 | #endif |
49854566 RS |
5663 | /* POSIX infers that processes which are not in the session leader's |
5664 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 5665 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
5666 | when the control tty is taken away. |
5667 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5668 | if (nread == -1 && errno == EIO) | |
5669 | kill (0, SIGHUP); | |
762f2b92 | 5670 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5671 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5672 | This looks incorrect, but it isn't, because _BSD causes | |
5673 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5674 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5675 | if (nread == 0) |
80e4aa30 | 5676 | kill (0, SIGHUP); |
284f4730 | 5677 | #endif |
9134775b | 5678 | } |
791587ee KH |
5679 | while ( |
5680 | /* We used to retry the read if it was interrupted. | |
5681 | But this does the wrong thing when O_NDELAY causes | |
5682 | an EAGAIN error. Does anybody know of a situation | |
5683 | where a retry is actually needed? */ | |
5684 | #if 0 | |
5685 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5686 | #ifdef EFAULT |
9134775b | 5687 | || errno == EFAULT |
80e4aa30 | 5688 | #endif |
284f4730 | 5689 | #ifdef EBADSLT |
9134775b | 5690 | || errno == EBADSLT |
284f4730 | 5691 | #endif |
791587ee KH |
5692 | ) |
5693 | #else | |
5694 | 0 | |
5695 | #endif | |
5696 | ); | |
284f4730 JB |
5697 | |
5698 | #ifndef FIONREAD | |
02c2c53f | 5699 | #if defined (USG) || defined (DGUX) |
437f6112 | 5700 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5701 | #endif /* USG or DGUX */ |
284f4730 JB |
5702 | #endif /* no FIONREAD */ |
5703 | for (i = 0; i < nread; i++) | |
5704 | { | |
5705 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5706 | buf[i].modifiers = 0; |
b04904fb | 5707 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5708 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5709 | if (meta_key != 2) |
5710 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5711 | |
5712 | buf[i].code = cbuf[i]; | |
788f89eb | 5713 | buf[i].frame_or_window = selected_frame; |
284f4730 JB |
5714 | } |
5715 | } | |
5716 | ||
5717 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5718 | for (i = 0; i < nread; i++) | |
5719 | { | |
5720 | kbd_buffer_store_event (&buf[i]); | |
5721 | /* Don't look at input that follows a C-g too closely. | |
5722 | This reduces lossage due to autorepeat on C-g. */ | |
5723 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5724 | && buf[i].code == quit_char) |
284f4730 JB |
5725 | break; |
5726 | } | |
5727 | ||
5728 | return nread; | |
5729 | } | |
5730 | #endif /* not VMS */ | |
5731 | \f | |
5732 | #ifdef SIGIO /* for entire page */ | |
5733 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5734 | ||
2ce30ea2 | 5735 | SIGTYPE |
284f4730 JB |
5736 | input_available_signal (signo) |
5737 | int signo; | |
5738 | { | |
5739 | /* Must preserve main program's value of errno. */ | |
5740 | int old_errno = errno; | |
5741 | #ifdef BSD4_1 | |
5742 | extern int select_alarmed; | |
5743 | #endif | |
5744 | ||
5970a8cb | 5745 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5746 | /* USG systems forget handlers when they are used; |
5747 | must reestablish each time */ | |
5748 | signal (signo, input_available_signal); | |
5749 | #endif /* USG */ | |
5750 | ||
5751 | #ifdef BSD4_1 | |
5752 | sigisheld (SIGIO); | |
5753 | #endif | |
5754 | ||
ffd56f97 JB |
5755 | if (input_available_clear_time) |
5756 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5757 | |
5758 | while (1) | |
5759 | { | |
5760 | int nread; | |
5761 | nread = read_avail_input (1); | |
5762 | /* -1 means it's not ok to read the input now. | |
5763 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5764 | 0 means there was no keyboard input available. */ | |
5765 | if (nread <= 0) | |
5766 | break; | |
5767 | ||
5768 | #ifdef BSD4_1 | |
5769 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5770 | #endif | |
5771 | } | |
5772 | ||
5773 | #ifdef BSD4_1 | |
5774 | sigfree (); | |
5775 | #endif | |
5776 | errno = old_errno; | |
5777 | } | |
5778 | #endif /* SIGIO */ | |
ad163903 JB |
5779 | |
5780 | /* Send ourselves a SIGIO. | |
5781 | ||
5782 | This function exists so that the UNBLOCK_INPUT macro in | |
5783 | blockinput.h can have some way to take care of input we put off | |
5784 | dealing with, without assuming that every file which uses | |
5785 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5786 | void | |
5787 | reinvoke_input_signal () | |
5788 | { | |
df0f2ba1 | 5789 | #ifdef SIGIO |
87dd9b9b | 5790 | kill (getpid (), SIGIO); |
ad163903 JB |
5791 | #endif |
5792 | } | |
5793 | ||
5794 | ||
284f4730 JB |
5795 | \f |
5796 | /* Return the prompt-string of a sparse keymap. | |
5797 | This is the first element which is a string. | |
5798 | Return nil if there is none. */ | |
5799 | ||
5800 | Lisp_Object | |
5801 | map_prompt (map) | |
5802 | Lisp_Object map; | |
5803 | { | |
5804 | while (CONSP (map)) | |
5805 | { | |
5806 | register Lisp_Object tem; | |
5807 | tem = Fcar (map); | |
8c18cbfb | 5808 | if (STRINGP (tem)) |
284f4730 JB |
5809 | return tem; |
5810 | map = Fcdr (map); | |
5811 | } | |
5812 | return Qnil; | |
5813 | } | |
5814 | ||
b7c49376 RS |
5815 | static void menu_bar_item (); |
5816 | static void menu_bar_one_keymap (); | |
5817 | ||
5818 | /* These variables hold the vector under construction within | |
5819 | menu_bar_items and its subroutines, and the current index | |
5820 | for storing into that vector. */ | |
5821 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5822 | static int menu_bar_items_index; |
5ec75a55 | 5823 | |
b7c49376 RS |
5824 | /* Return a vector of menu items for a menu bar, appropriate |
5825 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5826 | KEY STRING MAPLIST. |
b7c49376 RS |
5827 | |
5828 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5829 | |
5830 | Lisp_Object | |
b7c49376 RS |
5831 | menu_bar_items (old) |
5832 | Lisp_Object old; | |
5ec75a55 RS |
5833 | { |
5834 | /* The number of keymaps we're scanning right now, and the number of | |
5835 | keymaps we have allocated space for. */ | |
5836 | int nmaps; | |
5837 | ||
5838 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5839 | in the current keymaps, or nil where it is not a prefix. */ | |
5840 | Lisp_Object *maps; | |
5841 | ||
9f9c0e27 | 5842 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5843 | |
5844 | Lisp_Object result; | |
5845 | ||
5846 | int mapno; | |
47d319aa | 5847 | Lisp_Object oquit; |
5ec75a55 | 5848 | |
b7c49376 RS |
5849 | int i; |
5850 | ||
5851 | struct gcpro gcpro1; | |
5852 | ||
db60d856 JB |
5853 | /* In order to build the menus, we need to call the keymap |
5854 | accessors. They all call QUIT. But this function is called | |
5855 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5856 | quitting while building the menus. |
5857 | We do this instead of specbind because (1) errors will clear it anyway | |
5858 | and (2) this avoids risk of specpdl overflow. */ | |
5859 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5860 | Vinhibit_quit = Qt; |
db60d856 | 5861 | |
b7c49376 RS |
5862 | if (!NILP (old)) |
5863 | menu_bar_items_vector = old; | |
5864 | else | |
5865 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5866 | menu_bar_items_index = 0; | |
5867 | ||
5868 | GCPRO1 (menu_bar_items_vector); | |
5869 | ||
5ec75a55 RS |
5870 | /* Build our list of keymaps. |
5871 | If we recognize a function key and replace its escape sequence in | |
5872 | keybuf with its symbol, or if the sequence starts with a mouse | |
5873 | click and we need to switch buffers, we jump back here to rebuild | |
5874 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5875 | { |
5ec75a55 RS |
5876 | Lisp_Object *tmaps; |
5877 | ||
217258d5 | 5878 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5879 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5880 | { |
217258d5 KH |
5881 | /* Yes, use them (if non-nil) as well as the global map. */ |
5882 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5883 | nmaps = 0; | |
5884 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5885 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5886 | if (!NILP (Voverriding_local_map)) | |
5887 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5888 | } |
5889 | else | |
5890 | { | |
d0a49716 | 5891 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5892 | nmaps = current_minor_maps (NULL, &tmaps); |
5893 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5894 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
217258d5 | 5895 | maps[nmaps++] = get_local_map (PT, current_buffer); |
9dd3131c | 5896 | } |
217258d5 | 5897 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5898 | } |
5899 | ||
5900 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5901 | ||
5902 | result = Qnil; | |
5903 | ||
e58aa385 | 5904 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5905 | { |
5906 | if (! NILP (maps[mapno])) | |
c6a67acd | 5907 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5908 | else |
5909 | def = Qnil; | |
5910 | ||
5911 | tem = Fkeymapp (def); | |
5912 | if (!NILP (tem)) | |
b7c49376 | 5913 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5914 | } |
5915 | ||
b7c49376 RS |
5916 | /* Move to the end those items that should be at the end. */ |
5917 | ||
7539e11f | 5918 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 5919 | { |
b7c49376 RS |
5920 | int i; |
5921 | int end = menu_bar_items_index; | |
5922 | ||
35b3402f | 5923 | for (i = 0; i < end; i += 4) |
7539e11f | 5924 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 5925 | { |
35b3402f | 5926 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5927 | /* Move the item at index I to the end, |
5928 | shifting all the others forward. */ | |
5929 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5930 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5931 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5932 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5933 | if (end > i + 4) | |
5934 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5935 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5936 | (end - i - 4) * sizeof (Lisp_Object)); |
5937 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5938 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5939 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5940 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5941 | break; |
b7c49376 RS |
5942 | } |
5943 | } | |
9f9c0e27 | 5944 | |
0c9071cd | 5945 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5946 | i = menu_bar_items_index; |
35b3402f | 5947 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5948 | { |
5949 | Lisp_Object tem; | |
b7c49376 RS |
5950 | tem = Fmake_vector (make_number (2 * i), Qnil); |
5951 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5952 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5953 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5954 | } |
b7c49376 RS |
5955 | /* Add this item. */ |
5956 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5957 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5958 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5959 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5960 | menu_bar_items_index = i; |
a73c5e29 | 5961 | |
47d319aa | 5962 | Vinhibit_quit = oquit; |
b7c49376 RS |
5963 | UNGCPRO; |
5964 | return menu_bar_items_vector; | |
5ec75a55 RS |
5965 | } |
5966 | \f | |
5967 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5968 | in menu_bar_items_vector. */ |
5ec75a55 | 5969 | |
759860a6 RS |
5970 | static Lisp_Object menu_bar_one_keymap_changed_items; |
5971 | ||
b7c49376 RS |
5972 | static void |
5973 | menu_bar_one_keymap (keymap) | |
5974 | Lisp_Object keymap; | |
5ec75a55 | 5975 | { |
03cee6ae | 5976 | Lisp_Object tail, item; |
5ec75a55 | 5977 | |
759860a6 RS |
5978 | menu_bar_one_keymap_changed_items = Qnil; |
5979 | ||
5ec75a55 | 5980 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 5981 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 5982 | { |
7539e11f | 5983 | item = XCAR (tail); |
8c18cbfb | 5984 | if (CONSP (item)) |
7539e11f | 5985 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 5986 | else if (VECTORP (item)) |
5ec75a55 RS |
5987 | { |
5988 | /* Loop over the char values represented in the vector. */ | |
5989 | int len = XVECTOR (item)->size; | |
5990 | int c; | |
5991 | for (c = 0; c < len; c++) | |
5992 | { | |
5993 | Lisp_Object character; | |
bb9e9bed | 5994 | XSETFASTINT (character, c); |
e8886a1d | 5995 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
5996 | } |
5997 | } | |
5998 | } | |
5ec75a55 RS |
5999 | } |
6000 | ||
f5e09c8b RS |
6001 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6002 | If there's already an item for KEY, add this DEF to it. */ | |
6003 | ||
e8886a1d RS |
6004 | Lisp_Object item_properties; |
6005 | ||
b7c49376 | 6006 | static void |
e8886a1d RS |
6007 | menu_bar_item (key, item) |
6008 | Lisp_Object key, item; | |
5ec75a55 | 6009 | { |
e8886a1d | 6010 | struct gcpro gcpro1; |
b7c49376 | 6011 | int i; |
759860a6 | 6012 | Lisp_Object tem; |
5ec75a55 | 6013 | |
e8886a1d | 6014 | if (EQ (item, Qundefined)) |
e58aa385 | 6015 | { |
f5e09c8b | 6016 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6017 | discard any previously made menu bar item. */ |
b7c49376 | 6018 | |
35b3402f | 6019 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6020 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6021 | { | |
35b3402f RS |
6022 | if (menu_bar_items_index > i + 4) |
6023 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6024 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6025 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6026 | menu_bar_items_index -= 4; | |
b7c49376 RS |
6027 | return; |
6028 | } | |
8aa034e1 RS |
6029 | |
6030 | /* If there's no definition for this key yet, | |
6031 | just ignore `undefined'. */ | |
6032 | return; | |
e58aa385 RS |
6033 | } |
6034 | ||
e8886a1d RS |
6035 | GCPRO1 (key); /* Is this necessary? */ |
6036 | i = parse_menu_item (item, 0, 1); | |
6037 | UNGCPRO; | |
6038 | if (!i) | |
b7c49376 | 6039 | return; |
5ec75a55 | 6040 | |
759860a6 RS |
6041 | /* If this keymap has already contributed to this KEY, |
6042 | don't contribute to it a second time. */ | |
6043 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
6044 | if (!NILP (tem)) | |
6045 | return; | |
6046 | ||
6047 | menu_bar_one_keymap_changed_items | |
6048 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6049 | ||
e8886a1d RS |
6050 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6051 | ||
f5e09c8b | 6052 | /* Find any existing item for this KEY. */ |
35b3402f | 6053 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6054 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6055 | break; | |
6056 | ||
f5e09c8b | 6057 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6058 | if (i == menu_bar_items_index) |
6059 | { | |
6060 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6061 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6062 | { |
6063 | Lisp_Object tem; | |
b7c49376 RS |
6064 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6065 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6066 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6067 | menu_bar_items_vector = tem; | |
6068 | } | |
e8886a1d | 6069 | |
b7c49376 RS |
6070 | /* Add this item. */ |
6071 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6072 | XVECTOR (menu_bar_items_vector)->contents[i++] |
6073 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6074 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 6075 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
6076 | menu_bar_items_index = i; |
6077 | } | |
e8886a1d | 6078 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6079 | else |
6080 | { | |
6081 | Lisp_Object old; | |
6082 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6083 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6084 | } |
5ec75a55 RS |
6085 | } |
6086 | \f | |
e8886a1d RS |
6087 | /* This is used as the handler when calling menu_item_eval_property. */ |
6088 | static Lisp_Object | |
6089 | menu_item_eval_property_1 (arg) | |
6090 | Lisp_Object arg; | |
6091 | { | |
6092 | /* If we got a quit from within the menu computation, | |
6093 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6094 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6095 | Fsignal (Qquit, Qnil); |
6096 | ||
6097 | return Qnil; | |
6098 | } | |
6099 | ||
6100 | /* Evaluate an expression and return the result (or nil if something | |
6101 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6102 | Lisp_Object |
e8886a1d RS |
6103 | menu_item_eval_property (sexpr) |
6104 | Lisp_Object sexpr; | |
6105 | { | |
44e553a3 | 6106 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6107 | Lisp_Object val; |
44e553a3 | 6108 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6109 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6110 | menu_item_eval_property_1); | |
44e553a3 | 6111 | return unbind_to (count, val); |
e8886a1d RS |
6112 | } |
6113 | ||
6114 | /* This function parses a menu item and leaves the result in the | |
6115 | vector item_properties. | |
6116 | ITEM is a key binding, a possible menu item. | |
6117 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6118 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6119 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6120 | top level. |
fd3613d7 | 6121 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6122 | parse_menu_item returns true if the item is a menu item and false |
6123 | otherwise. */ | |
6124 | ||
6125 | int | |
6126 | parse_menu_item (item, notreal, inmenubar) | |
6127 | Lisp_Object item; | |
6128 | int notreal, inmenubar; | |
6129 | { | |
adc1d5c8 | 6130 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6131 | Lisp_Object cachelist; |
6132 | Lisp_Object filter; | |
6133 | Lisp_Object keyhint; | |
e8886a1d | 6134 | int i; |
74c1de23 RS |
6135 | int newcache = 0; |
6136 | ||
07ba902e RS |
6137 | cachelist = Qnil; |
6138 | filter = Qnil; | |
6139 | keyhint = Qnil; | |
6140 | ||
e8886a1d RS |
6141 | if (!CONSP (item)) |
6142 | return 0; | |
6143 | ||
e8886a1d RS |
6144 | /* Create item_properties vector if necessary. */ |
6145 | if (NILP (item_properties)) | |
6146 | item_properties | |
6147 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6148 | ||
6149 | /* Initialize optional entries. */ | |
6150 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
6151 | XVECTOR (item_properties)->contents[i] = Qnil; | |
6152 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = Qt; | |
6153 | ||
6154 | /* Save the item here to protect it from GC. */ | |
6155 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ITEM] = item; | |
6156 | ||
7539e11f | 6157 | item_string = XCAR (item); |
e8886a1d RS |
6158 | |
6159 | start = item; | |
7539e11f | 6160 | item = XCDR (item); |
e8886a1d RS |
6161 | if (STRINGP (item_string)) |
6162 | { | |
6163 | /* Old format menu item. */ | |
6164 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; | |
6165 | ||
6166 | /* Maybe help string. */ | |
7539e11f | 6167 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d RS |
6168 | { |
6169 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6170 | = XCAR (item); |
e8886a1d | 6171 | start = item; |
7539e11f | 6172 | item = XCDR (item); |
e8886a1d RS |
6173 | } |
6174 | ||
6175 | /* Maybee key binding cache. */ | |
7539e11f KR |
6176 | if (CONSP (item) && CONSP (XCAR (item)) |
6177 | && (NILP (XCAR (XCAR (item))) | |
6178 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6179 | { |
7539e11f KR |
6180 | cachelist = XCAR (item); |
6181 | item = XCDR (item); | |
e8886a1d RS |
6182 | } |
6183 | ||
6184 | /* This is the real definition--the function to run. */ | |
6185 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = item; | |
6186 | ||
6187 | /* Get enable property, if any. */ | |
6188 | if (SYMBOLP (item)) | |
6189 | { | |
6190 | tem = Fget (item, Qmenu_enable); | |
6191 | if (!NILP (tem)) | |
6192 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; | |
6193 | } | |
6194 | } | |
6195 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6196 | { | |
6197 | /* New format menu item. */ | |
6198 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] | |
7539e11f KR |
6199 | = XCAR (item); |
6200 | start = XCDR (item); | |
e8886a1d RS |
6201 | if (CONSP (start)) |
6202 | { | |
6203 | /* We have a real binding. */ | |
6204 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] | |
7539e11f | 6205 | = XCAR (start); |
e8886a1d | 6206 | |
7539e11f | 6207 | item = XCDR (start); |
e8886a1d | 6208 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6209 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6210 | { |
7539e11f KR |
6211 | cachelist = XCAR (item); |
6212 | item = XCDR (item); | |
e8886a1d RS |
6213 | } |
6214 | ||
6215 | /* Parse properties. */ | |
7539e11f | 6216 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6217 | { |
7539e11f KR |
6218 | tem = XCAR (item); |
6219 | item = XCDR (item); | |
e8886a1d RS |
6220 | |
6221 | if (EQ (tem, QCenable)) | |
6222 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] | |
7539e11f | 6223 | = XCAR (item); |
e8886a1d RS |
6224 | else if (EQ (tem, QCvisible) && !notreal) |
6225 | { | |
6226 | /* If got a visible property and that evaluates to nil | |
6227 | then ignore this item. */ | |
7539e11f | 6228 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6229 | if (NILP (tem)) |
adc1d5c8 | 6230 | return 0; |
e8886a1d RS |
6231 | } |
6232 | else if (EQ (tem, QChelp)) | |
6233 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6234 | = XCAR (item); |
e8886a1d | 6235 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6236 | filter = item; |
6237 | else if (EQ (tem, QCkey_sequence)) | |
6238 | { | |
7539e11f | 6239 | tem = XCAR (item); |
74c1de23 RS |
6240 | if (NILP (cachelist) |
6241 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6242 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6243 | keyhint = item; | |
6244 | } | |
6245 | else if (EQ (tem, QCkeys)) | |
6246 | { | |
7539e11f | 6247 | tem = XCAR (item); |
03cee6ae | 6248 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
74c1de23 RS |
6249 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] |
6250 | = tem; | |
6251 | } | |
7539e11f | 6252 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6253 | { |
74c1de23 | 6254 | Lisp_Object type; |
7539e11f KR |
6255 | tem = XCAR (item); |
6256 | type = XCAR (tem); | |
e8886a1d RS |
6257 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6258 | { | |
6259 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
7539e11f | 6260 | = XCDR (tem); |
e8886a1d RS |
6261 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE] |
6262 | = type; | |
6263 | } | |
6264 | } | |
7539e11f | 6265 | item = XCDR (item); |
e8886a1d RS |
6266 | } |
6267 | } | |
6268 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6269 | return 0; |
e8886a1d RS |
6270 | } |
6271 | else | |
adc1d5c8 | 6272 | return 0; /* not a menu item */ |
e8886a1d RS |
6273 | |
6274 | /* If item string is not a string, evaluate it to get string. | |
6275 | If we don't get a string, skip this item. */ | |
6276 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6277 | if (!(STRINGP (item_string) || notreal)) | |
6278 | { | |
6279 | item_string = menu_item_eval_property (item_string); | |
6280 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6281 | return 0; |
e8886a1d RS |
6282 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; |
6283 | } | |
6284 | ||
6285 | /* If got a filter apply it on definition. */ | |
6286 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; | |
6287 | if (!NILP (filter)) | |
6288 | { | |
7539e11f | 6289 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6290 | list2 (Qquote, def))); |
6291 | ||
e8886a1d RS |
6292 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = def; |
6293 | } | |
6294 | ||
6295 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6296 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6297 | if (NILP (def)) |
adc1d5c8 | 6298 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6299 | |
6300 | /* Enable or disable selection of item. */ | |
6301 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; | |
6302 | if (!EQ (tem, Qt)) | |
6303 | { | |
6304 | if (notreal) | |
6305 | tem = Qt; | |
6306 | else | |
6307 | tem = menu_item_eval_property (tem); | |
6308 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6309 | return 0; /* Ignore disabled items in menu bar. */ |
e8886a1d RS |
6310 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; |
6311 | } | |
6312 | ||
6313 | /* See if this is a separate pane or a submenu. */ | |
74c1de23 | 6314 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
e8886a1d | 6315 | tem = get_keymap_1 (def, 0, 1); |
9ac425d1 | 6316 | /* For a subkeymap, just record its details and exit. */ |
e8886a1d RS |
6317 | if (!NILP (tem)) |
6318 | { | |
6319 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP] = tem; | |
6320 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = tem; | |
e8886a1d RS |
6321 | return 1; |
6322 | } | |
9ac425d1 RS |
6323 | /* At the top level in the menu bar, do likewise for commands also. |
6324 | The menu bar does not display equivalent key bindings anyway. | |
6325 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6326 | if (inmenubar > 0) | |
6327 | return 1; | |
e8886a1d RS |
6328 | |
6329 | /* This is a command. See if there is an equivalent key binding. */ | |
6330 | if (NILP (cachelist)) | |
6331 | { | |
74c1de23 | 6332 | /* We have to create a cachelist. */ |
e8886a1d | 6333 | CHECK_IMPURE (start); |
7539e11f KR |
6334 | XCDR (start) = Fcons (Fcons (Qnil, Qnil), XCDR (start)); |
6335 | cachelist = XCAR (XCDR (start)); | |
74c1de23 RS |
6336 | newcache = 1; |
6337 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6338 | if (!NILP (keyhint)) | |
6339 | { | |
7539e11f | 6340 | XCAR (cachelist) = XCAR (keyhint); |
74c1de23 RS |
6341 | newcache = 0; |
6342 | } | |
6343 | else if (STRINGP (tem)) | |
6344 | { | |
7539e11f KR |
6345 | XCDR (cachelist) = Fsubstitute_command_keys (tem); |
6346 | XCAR (cachelist) = Qt; | |
74c1de23 RS |
6347 | } |
6348 | } | |
7539e11f | 6349 | tem = XCAR (cachelist); |
74c1de23 RS |
6350 | if (!EQ (tem, Qt)) |
6351 | { | |
6352 | int chkcache = 0; | |
6353 | Lisp_Object prefix; | |
6354 | ||
6355 | if (!NILP (tem)) | |
6356 | tem = Fkey_binding (tem, Qnil); | |
6357 | ||
6358 | prefix = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6359 | if (CONSP (prefix)) | |
6360 | { | |
7539e11f KR |
6361 | def = XCAR (prefix); |
6362 | prefix = XCDR (prefix); | |
74c1de23 | 6363 | } |
e8886a1d | 6364 | else |
74c1de23 RS |
6365 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6366 | ||
7539e11f | 6367 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
6368 | { |
6369 | if (newcache /* Always check first time. */ | |
6370 | /* Should we check everything when precomputing key | |
6371 | bindings? */ | |
6372 | /* || notreal */ | |
6373 | /* If something had no key binding before, don't recheck it | |
6374 | because that is too slow--except if we have a list of | |
6375 | rebound commands in Vdefine_key_rebound_commands, do | |
6376 | recheck any command that appears in that list. */ | |
6377 | || (CONSP (Vdefine_key_rebound_commands) | |
6378 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6379 | chkcache = 1; | |
6380 | } | |
6381 | /* We had a saved key. Is it still bound to the command? */ | |
6382 | else if (NILP (tem) | |
03cee6ae GM |
6383 | || (!EQ (tem, def) |
6384 | /* If the command is an alias for another | |
6385 | (such as lmenu.el set it up), check if the | |
6386 | original command matches the cached command. */ | |
6387 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
6388 | chkcache = 1; /* Need to recompute key binding. */ |
6389 | ||
6390 | if (chkcache) | |
6391 | { | |
6392 | /* Recompute equivalent key binding. If the command is an alias | |
6393 | for another (such as lmenu.el set it up), see if the original | |
6394 | command name has equivalent keys. Otherwise look up the | |
6395 | specified command itself. We don't try both, because that | |
6396 | makes lmenu menus slow. */ | |
6397 | if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function) | |
6398 | && ! NILP (Fget (def, Qmenu_alias))) | |
6399 | def = XSYMBOL (def)->function; | |
6400 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
7539e11f | 6401 | XCAR (cachelist) = tem; |
74c1de23 RS |
6402 | if (NILP (tem)) |
6403 | { | |
7539e11f | 6404 | XCDR (cachelist) = Qnil; |
74c1de23 RS |
6405 | chkcache = 0; |
6406 | } | |
6407 | } | |
7539e11f | 6408 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 6409 | { |
7539e11f | 6410 | tem = XCAR (cachelist); |
74c1de23 RS |
6411 | chkcache = 1; |
6412 | } | |
6413 | ||
6414 | newcache = chkcache; | |
6415 | if (chkcache) | |
6416 | { | |
6417 | tem = Fkey_description (tem); | |
6418 | if (CONSP (prefix)) | |
6419 | { | |
7539e11f KR |
6420 | if (STRINGP (XCAR (prefix))) |
6421 | tem = concat2 (XCAR (prefix), tem); | |
6422 | if (STRINGP (XCDR (prefix))) | |
6423 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 6424 | } |
7539e11f | 6425 | XCDR (cachelist) = tem; |
74c1de23 RS |
6426 | } |
6427 | } | |
6428 | ||
7539e11f | 6429 | tem = XCDR (cachelist); |
74c1de23 | 6430 | if (newcache && !NILP (tem)) |
e8886a1d | 6431 | { |
74c1de23 | 6432 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
7539e11f | 6433 | XCDR (cachelist) = tem; |
e8886a1d RS |
6434 | } |
6435 | ||
6436 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6437 | if (notreal) | |
adc1d5c8 | 6438 | return 1; |
e8886a1d RS |
6439 | |
6440 | /* If we have an equivalent key binding, use that. */ | |
adc1d5c8 RS |
6441 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] = tem; |
6442 | ||
6443 | /* Include this when menu help is implemented. | |
6444 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6445 | if (!(NILP (tem) || STRINGP (tem))) | |
6446 | { | |
6447 | tem = menu_item_eval_property (tem); | |
6448 | if (!STRINGP (tem)) | |
6449 | tem = Qnil; | |
6450 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6451 | } | |
e8886a1d RS |
6452 | */ |
6453 | ||
6454 | /* Handle radio buttons or toggle boxes. */ | |
6455 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6456 | if (!NILP (tem)) | |
6457 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6458 | = menu_item_eval_property (tem); | |
6459 | ||
e8886a1d RS |
6460 | return 1; |
6461 | } | |
7ee32cda GM |
6462 | |
6463 | ||
6464 | \f | |
6465 | /*********************************************************************** | |
6466 | Tool-bars | |
6467 | ***********************************************************************/ | |
6468 | ||
9ea173e8 GM |
6469 | /* A vector holding tool bar items while they are parsed in function |
6470 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
6471 | in the vector. */ | |
7ee32cda | 6472 | |
9ea173e8 | 6473 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 6474 | |
9ea173e8 GM |
6475 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
6476 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 6477 | |
9ea173e8 | 6478 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 6479 | |
9ea173e8 | 6480 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 6481 | |
9ea173e8 | 6482 | static int ntool_bar_items; |
7ee32cda | 6483 | |
9ea173e8 | 6484 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 6485 | |
9ea173e8 | 6486 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
6487 | Lisp_Object QCimage; |
6488 | ||
6489 | /* Function prototypes. */ | |
6490 | ||
9ea173e8 GM |
6491 | static void init_tool_bar_items P_ ((Lisp_Object)); |
6492 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6493 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6494 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
6495 | |
6496 | ||
9ea173e8 | 6497 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 6498 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 6499 | tool bar items found. */ |
7ee32cda GM |
6500 | |
6501 | Lisp_Object | |
9ea173e8 | 6502 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
6503 | Lisp_Object reuse; |
6504 | int *nitems; | |
6505 | { | |
6506 | Lisp_Object *maps; | |
6507 | int nmaps, i; | |
6508 | Lisp_Object oquit; | |
6509 | Lisp_Object *tmaps; | |
6510 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
6511 | extern Lisp_Object Voverriding_local_map; | |
6512 | ||
6513 | *nitems = 0; | |
6514 | ||
6515 | /* In order to build the menus, we need to call the keymap | |
6516 | accessors. They all call QUIT. But this function is called | |
6517 | during redisplay, during which a quit is fatal. So inhibit | |
6518 | quitting while building the menus. We do this instead of | |
6519 | specbind because (1) errors will clear it anyway and (2) this | |
6520 | avoids risk of specpdl overflow. */ | |
6521 | oquit = Vinhibit_quit; | |
6522 | Vinhibit_quit = Qt; | |
6523 | ||
9ea173e8 GM |
6524 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
6525 | init_tool_bar_items (reuse); | |
7ee32cda GM |
6526 | |
6527 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
6528 | to process. */ | |
6529 | ||
6530 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
6531 | if (!NILP (Voverriding_local_map_menu_flag)) | |
6532 | { | |
6533 | /* Yes, use them (if non-nil) as well as the global map. */ | |
6534 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6535 | nmaps = 0; | |
6536 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6537 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6538 | if (!NILP (Voverriding_local_map)) | |
6539 | maps[nmaps++] = Voverriding_local_map; | |
6540 | } | |
6541 | else | |
6542 | { | |
6543 | /* No, so use major and minor mode keymaps. */ | |
6544 | nmaps = current_minor_maps (NULL, &tmaps); | |
6545 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
6546 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
7ee32cda | 6547 | maps[nmaps++] = get_local_map (PT, current_buffer); |
7ee32cda GM |
6548 | } |
6549 | ||
6550 | /* Add global keymap at the end. */ | |
6551 | maps[nmaps++] = current_global_map; | |
6552 | ||
6553 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 6554 | key `tool-bar'. */ |
7ee32cda GM |
6555 | for (i = nmaps - 1; i >= 0; --i) |
6556 | if (!NILP (maps[i])) | |
6557 | { | |
6558 | Lisp_Object keymap; | |
6559 | ||
9ea173e8 | 6560 | keymap = get_keyelt (access_keymap (maps[i], Qtool_bar, 1, 1), 0); |
7ee32cda GM |
6561 | if (!NILP (Fkeymapp (keymap))) |
6562 | { | |
6563 | Lisp_Object tail; | |
6564 | ||
6565 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 6566 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
6567 | { |
6568 | Lisp_Object keydef = XCAR (tail); | |
6569 | if (CONSP (keydef)) | |
9ea173e8 | 6570 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
6571 | } |
6572 | } | |
6573 | } | |
6574 | ||
6575 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
6576 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
6577 | return tool_bar_items_vector; | |
7ee32cda GM |
6578 | } |
6579 | ||
6580 | ||
6581 | /* Process the definition of KEY which is DEF. */ | |
6582 | ||
6583 | static void | |
9ea173e8 | 6584 | process_tool_bar_item (key, def) |
7ee32cda GM |
6585 | Lisp_Object key, def; |
6586 | { | |
6587 | int i; | |
6588 | extern Lisp_Object Qundefined; | |
6589 | struct gcpro gcpro1, gcpro2; | |
6590 | ||
9ea173e8 | 6591 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
6592 | eval. */ |
6593 | GCPRO2 (key, def); | |
6594 | ||
6595 | if (EQ (def, Qundefined)) | |
6596 | { | |
6597 | /* If a map has an explicit `undefined' as definition, | |
6598 | discard any previously made item. */ | |
9ea173e8 | 6599 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 6600 | { |
9ea173e8 | 6601 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 6602 | |
9ea173e8 | 6603 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 6604 | { |
9ea173e8 GM |
6605 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
6606 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
6607 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 6608 | * sizeof (Lisp_Object))); |
9ea173e8 | 6609 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
6610 | break; |
6611 | } | |
6612 | } | |
6613 | } | |
9ea173e8 GM |
6614 | else if (parse_tool_bar_item (key, def)) |
6615 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 6616 | more than one definition for the same key. */ |
9ea173e8 | 6617 | append_tool_bar_item (); |
7ee32cda GM |
6618 | |
6619 | UNGCPRO; | |
6620 | } | |
6621 | ||
6622 | ||
9ea173e8 GM |
6623 | /* Parse a tool bar item specification ITEM for key KEY and return the |
6624 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
6625 | invalid. |
6626 | ||
6627 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
6628 | ||
6629 | CAPTION is the caption of the item, If it's not a string, it is | |
6630 | evaluated to get a string. | |
6631 | ||
9ea173e8 | 6632 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
6633 | as binding are currently ignored. |
6634 | ||
6635 | The following properties are recognized: | |
6636 | ||
6637 | - `:enable FORM'. | |
6638 | ||
9ea173e8 GM |
6639 | FORM is evaluated and specifies whether the tool bar item is |
6640 | enabled or disabled. | |
7ee32cda GM |
6641 | |
6642 | - `:visible FORM' | |
6643 | ||
9ea173e8 | 6644 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
6645 | |
6646 | - `:filter FUNCTION' | |
6647 | ||
6648 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
6649 | result is stored as the new binding. | |
6650 | ||
6651 | - `:button (TYPE SELECTED)' | |
6652 | ||
6653 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
6654 | and specifies whether the button is selected (pressed) or not. | |
6655 | ||
6656 | - `:image IMAGES' | |
6657 | ||
6658 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 6659 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
6660 | |
6661 | - `:help HELP-STRING'. | |
6662 | ||
9ea173e8 | 6663 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
6664 | |
6665 | static int | |
9ea173e8 | 6666 | parse_tool_bar_item (key, item) |
7ee32cda GM |
6667 | Lisp_Object key, item; |
6668 | { | |
9ea173e8 GM |
6669 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
6670 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
6671 | |
6672 | Lisp_Object filter = Qnil; | |
6673 | Lisp_Object caption; | |
6674 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
6675 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
6676 | int i; | |
7ee32cda | 6677 | |
9ea173e8 | 6678 | /* Defininition looks like `(tool-bar-item CAPTION BINDING |
7ee32cda | 6679 | PROPS...)'. Rule out items that aren't lists, don't start with |
9ea173e8 | 6680 | `tool-bar-item' or whose rest following `tool-bar-item' is not a |
7ee32cda GM |
6681 | list. */ |
6682 | if (!CONSP (item) | |
6683 | || !EQ (XCAR (item), Qmenu_item) | |
6684 | || (item = XCDR (item), | |
6685 | !CONSP (item))) | |
6686 | return 0; | |
6687 | ||
9ea173e8 | 6688 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 6689 | defaults. */ |
9ea173e8 | 6690 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 6691 | { |
9ea173e8 | 6692 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
6693 | PROP (i) = Qnil; |
6694 | } | |
6695 | else | |
9ea173e8 GM |
6696 | tool_bar_item_properties |
6697 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
6698 | |
6699 | /* Set defaults. */ | |
9ea173e8 GM |
6700 | PROP (TOOL_BAR_ITEM_KEY) = key; |
6701 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
6702 | |
6703 | /* Get the caption of the item. If the caption is not a string, | |
6704 | evaluate it to get a string. If we don't get a string, skip this | |
6705 | item. */ | |
6706 | caption = XCAR (item); | |
6707 | if (!STRINGP (caption)) | |
6708 | { | |
6709 | caption = menu_item_eval_property (caption); | |
6710 | if (!STRINGP (caption)) | |
6711 | return 0; | |
6712 | } | |
9ea173e8 | 6713 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
6714 | |
6715 | /* Give up if rest following the caption is not a list. */ | |
6716 | item = XCDR (item); | |
6717 | if (!CONSP (item)) | |
6718 | return 0; | |
6719 | ||
6720 | /* Store the binding. */ | |
9ea173e8 | 6721 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
6722 | item = XCDR (item); |
6723 | ||
6724 | /* Process the rest of the properties. */ | |
6725 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
6726 | { | |
6727 | Lisp_Object key, value; | |
6728 | ||
6729 | key = XCAR (item); | |
6730 | value = XCAR (XCDR (item)); | |
6731 | ||
6732 | if (EQ (key, QCenable)) | |
6733 | /* `:enable FORM'. */ | |
9ea173e8 | 6734 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
6735 | else if (EQ (key, QCvisible)) |
6736 | { | |
6737 | /* `:visible FORM'. If got a visible property and that | |
6738 | evaluates to nil then ignore this item. */ | |
6739 | if (NILP (menu_item_eval_property (value))) | |
6740 | return 0; | |
6741 | } | |
6742 | else if (EQ (key, QChelp)) | |
6743 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 6744 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
6745 | else if (EQ (key, QCfilter)) |
6746 | /* ':filter FORM'. */ | |
6747 | filter = value; | |
6748 | else if (EQ (key, QCbutton) && CONSP (value)) | |
6749 | { | |
6750 | /* `:button (TYPE . SELECTED)'. */ | |
6751 | Lisp_Object type, selected; | |
6752 | ||
6753 | type = XCAR (value); | |
6754 | selected = XCDR (value); | |
6755 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
6756 | { | |
9ea173e8 GM |
6757 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
6758 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
6759 | } |
6760 | } | |
6761 | else if (EQ (key, QCimage) | |
6762 | && (CONSP (value) | |
6763 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
6764 | /* Value is either a single image specification or a vector | |
6765 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 6766 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
6767 | } |
6768 | ||
6769 | /* If got a filter apply it on binding. */ | |
6770 | if (!NILP (filter)) | |
9ea173e8 | 6771 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
6772 | = menu_item_eval_property (list2 (filter, |
6773 | list2 (Qquote, | |
9ea173e8 | 6774 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
6775 | |
6776 | /* See if the binding is a keymap. Give up if it is. */ | |
9ea173e8 | 6777 | if (!NILP (get_keymap_1 (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
6778 | return 0; |
6779 | ||
6780 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
6781 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
6782 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
6783 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
6784 | |
6785 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
6786 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
6787 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
6788 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
6789 | |
6790 | return 1; | |
6791 | ||
6792 | #undef PROP | |
6793 | } | |
6794 | ||
6795 | ||
9ea173e8 GM |
6796 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
6797 | that can be reused. */ | |
7ee32cda GM |
6798 | |
6799 | static void | |
9ea173e8 | 6800 | init_tool_bar_items (reuse) |
7ee32cda GM |
6801 | Lisp_Object reuse; |
6802 | { | |
6803 | if (VECTORP (reuse)) | |
9ea173e8 | 6804 | tool_bar_items_vector = reuse; |
7ee32cda | 6805 | else |
9ea173e8 GM |
6806 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
6807 | ntool_bar_items = 0; | |
7ee32cda GM |
6808 | } |
6809 | ||
6810 | ||
9ea173e8 GM |
6811 | /* Append parsed tool bar item properties from |
6812 | tool_bar_item_properties */ | |
7ee32cda GM |
6813 | |
6814 | static void | |
9ea173e8 | 6815 | append_tool_bar_item () |
7ee32cda GM |
6816 | { |
6817 | Lisp_Object *to, *from; | |
6818 | ||
9ea173e8 GM |
6819 | /* Enlarge tool_bar_items_vector if necessary. */ |
6820 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
6821 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
6822 | { |
6823 | Lisp_Object new_vector; | |
9ea173e8 | 6824 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
6825 | |
6826 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 6827 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
6828 | XVECTOR (new_vector)->contents, |
6829 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 6830 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
6831 | } |
6832 | ||
9ea173e8 GM |
6833 | /* Append entries from tool_bar_item_properties to the end of |
6834 | tool_bar_items_vector. */ | |
6835 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
6836 | from = XVECTOR (tool_bar_item_properties)->contents; | |
6837 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
6838 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
6839 | } |
6840 | ||
6841 | ||
6842 | ||
6843 | ||
e8886a1d | 6844 | \f |
dcc408a0 RS |
6845 | /* Read a character using menus based on maps in the array MAPS. |
6846 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
6847 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
6848 | |
6849 | PREV_EVENT is the previous input event, or nil if we are reading | |
6850 | the first event of a key sequence. | |
6851 | ||
83d68044 | 6852 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 6853 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 6854 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
6855 | |
6856 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 6857 | and the strings associated with various map elements. |
8150596a RS |
6858 | |
6859 | This can be done with X menus or with menus put in the minibuf. | |
6860 | These are done in different ways, depending on how the input will be read. | |
6861 | Menus using X are done after auto-saving in read-char, getting the input | |
6862 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
6863 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 6864 | |
7617111f | 6865 | static Lisp_Object |
8150596a | 6866 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
6867 | int nmaps; |
6868 | Lisp_Object *maps; | |
6869 | Lisp_Object prev_event; | |
6870 | int *used_mouse_menu; | |
284f4730 | 6871 | { |
7d6de002 RS |
6872 | int mapno; |
6873 | register Lisp_Object name; | |
7d6de002 | 6874 | |
6569cc8d JB |
6875 | if (used_mouse_menu) |
6876 | *used_mouse_menu = 0; | |
284f4730 JB |
6877 | |
6878 | /* Use local over global Menu maps */ | |
6879 | ||
7d6de002 RS |
6880 | if (! menu_prompting) |
6881 | return Qnil; | |
6882 | ||
03361bcc RS |
6883 | /* Optionally disregard all but the global map. */ |
6884 | if (inhibit_local_menu_bar_menus) | |
6885 | { | |
6886 | maps += (nmaps - 1); | |
6887 | nmaps = 1; | |
6888 | } | |
6889 | ||
7d6de002 RS |
6890 | /* Get the menu name from the first map that has one (a prompt string). */ |
6891 | for (mapno = 0; mapno < nmaps; mapno++) | |
6892 | { | |
6893 | name = map_prompt (maps[mapno]); | |
6894 | if (!NILP (name)) | |
6895 | break; | |
6896 | } | |
284f4730 | 6897 | |
7d6de002 | 6898 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 6899 | if (mapno >= nmaps) |
7d6de002 RS |
6900 | return Qnil; |
6901 | ||
1f5b1641 | 6902 | #ifdef HAVE_MENUS |
7d6de002 RS |
6903 | /* If we got to this point via a mouse click, |
6904 | use a real menu for mouse selection. */ | |
5a8d99e0 | 6905 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
6906 | && !EQ (XCAR (prev_event), Qmenu_bar) |
6907 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
6908 | { |
6909 | /* Display the menu and get the selection. */ | |
6910 | Lisp_Object *realmaps | |
6911 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
6912 | Lisp_Object value; | |
6913 | int nmaps1 = 0; | |
6914 | ||
6915 | /* Use the maps that are not nil. */ | |
6916 | for (mapno = 0; mapno < nmaps; mapno++) | |
6917 | if (!NILP (maps[mapno])) | |
6918 | realmaps[nmaps1++] = maps[mapno]; | |
6919 | ||
6920 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
6921 | if (CONSP (value)) |
6922 | { | |
68f297c5 RS |
6923 | Lisp_Object tem; |
6924 | ||
7539e11f | 6925 | record_menu_key (XCAR (value)); |
8eb4d8ef | 6926 | |
68f297c5 RS |
6927 | /* If we got multiple events, unread all but |
6928 | the first. | |
6929 | There is no way to prevent those unread events | |
6930 | from showing up later in last_nonmenu_event. | |
6931 | So turn symbol and integer events into lists, | |
6932 | to indicate that they came from a mouse menu, | |
6933 | so that when present in last_nonmenu_event | |
6934 | they won't confuse things. */ | |
7539e11f KR |
6935 | for (tem = XCDR (value); !NILP (tem); |
6936 | tem = XCDR (tem)) | |
8eb4d8ef | 6937 | { |
7539e11f KR |
6938 | record_menu_key (XCAR (tem)); |
6939 | if (SYMBOLP (XCAR (tem)) | |
6940 | || INTEGERP (XCAR (tem))) | |
6941 | XCAR (tem) | |
6942 | = Fcons (XCAR (tem), Qnil); | |
8eb4d8ef | 6943 | } |
68f297c5 | 6944 | |
663258f2 JB |
6945 | /* If we got more than one event, put all but the first |
6946 | onto this list to be read later. | |
6947 | Return just the first event now. */ | |
24597608 | 6948 | Vunread_command_events |
7539e11f KR |
6949 | = nconc2 (XCDR (value), Vunread_command_events); |
6950 | value = XCAR (value); | |
663258f2 | 6951 | } |
1c90c381 | 6952 | else if (NILP (value)) |
dcc408a0 | 6953 | value = Qt; |
6569cc8d JB |
6954 | if (used_mouse_menu) |
6955 | *used_mouse_menu = 1; | |
7d6de002 RS |
6956 | return value; |
6957 | } | |
1f5b1641 | 6958 | #endif /* HAVE_MENUS */ |
8150596a RS |
6959 | return Qnil ; |
6960 | } | |
6961 | ||
68e0de82 RS |
6962 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
6963 | We make this bigger when necessary, and never free it. */ | |
6964 | static char *read_char_minibuf_menu_text; | |
6965 | /* Size of that buffer. */ | |
6966 | static int read_char_minibuf_menu_width; | |
6967 | ||
8150596a | 6968 | static Lisp_Object |
24597608 | 6969 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
6970 | int commandflag ; |
6971 | int nmaps; | |
6972 | Lisp_Object *maps; | |
6973 | { | |
6974 | int mapno; | |
6975 | register Lisp_Object name; | |
6976 | int nlength; | |
788f89eb | 6977 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 6978 | int idx = -1; |
9fdbfdf8 | 6979 | int nobindings = 1; |
8150596a | 6980 | Lisp_Object rest, vector; |
68e0de82 | 6981 | char *menu; |
8150596a RS |
6982 | |
6983 | if (! menu_prompting) | |
6984 | return Qnil; | |
6985 | ||
68e0de82 RS |
6986 | /* Make sure we have a big enough buffer for the menu text. */ |
6987 | if (read_char_minibuf_menu_text == 0) | |
6988 | { | |
6989 | read_char_minibuf_menu_width = width + 4; | |
6990 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
6991 | } | |
6992 | else if (width + 4 > read_char_minibuf_menu_width) | |
6993 | { | |
6994 | read_char_minibuf_menu_width = width + 4; | |
6995 | read_char_minibuf_menu_text | |
6996 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
6997 | } | |
6998 | menu = read_char_minibuf_menu_text; | |
6999 | ||
8150596a RS |
7000 | /* Get the menu name from the first map that has one (a prompt string). */ |
7001 | for (mapno = 0; mapno < nmaps; mapno++) | |
7002 | { | |
7003 | name = map_prompt (maps[mapno]); | |
7004 | if (!NILP (name)) | |
7005 | break; | |
7006 | } | |
7007 | ||
7008 | /* If we don't have any menus, just read a character normally. */ | |
7009 | if (mapno >= nmaps) | |
7010 | return Qnil; | |
284f4730 JB |
7011 | |
7012 | /* Prompt string always starts with map's prompt, and a space. */ | |
7013 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 7014 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 7015 | menu[nlength++] = ':'; |
284f4730 JB |
7016 | menu[nlength++] = ' '; |
7017 | menu[nlength] = 0; | |
7018 | ||
7d6de002 RS |
7019 | /* Start prompting at start of first map. */ |
7020 | mapno = 0; | |
7021 | rest = maps[mapno]; | |
284f4730 JB |
7022 | |
7023 | /* Present the documented bindings, a line at a time. */ | |
7024 | while (1) | |
7025 | { | |
7026 | int notfirst = 0; | |
7027 | int i = nlength; | |
7028 | Lisp_Object obj; | |
7029 | int ch; | |
8066f1a1 | 7030 | Lisp_Object orig_defn_macro; |
284f4730 | 7031 | |
284f4730 | 7032 | /* Loop over elements of map. */ |
7d6de002 | 7033 | while (i < width) |
284f4730 | 7034 | { |
fd3613d7 | 7035 | Lisp_Object elt; |
284f4730 | 7036 | |
7d6de002 RS |
7037 | /* If reached end of map, start at beginning of next map. */ |
7038 | if (NILP (rest)) | |
7039 | { | |
7040 | mapno++; | |
7041 | /* At end of last map, wrap around to first map if just starting, | |
7042 | or end this line if already have something on it. */ | |
7043 | if (mapno == nmaps) | |
284f4730 | 7044 | { |
8150596a | 7045 | mapno = 0; |
40932d1a | 7046 | if (notfirst || nobindings) break; |
284f4730 | 7047 | } |
7d6de002 | 7048 | rest = maps[mapno]; |
284f4730 | 7049 | } |
7d6de002 RS |
7050 | |
7051 | /* Look at the next element of the map. */ | |
7052 | if (idx >= 0) | |
7053 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 7054 | else |
7d6de002 RS |
7055 | elt = Fcar_safe (rest); |
7056 | ||
8c18cbfb | 7057 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7058 | { |
7d6de002 RS |
7059 | /* If we found a dense table in the keymap, |
7060 | advanced past it, but start scanning its contents. */ | |
7061 | rest = Fcdr_safe (rest); | |
7062 | vector = elt; | |
7063 | idx = 0; | |
284f4730 | 7064 | } |
7d6de002 RS |
7065 | else |
7066 | { | |
7067 | /* An ordinary element. */ | |
fd3613d7 | 7068 | Lisp_Object event, tem; |
0a2ea221 KH |
7069 | |
7070 | if (idx < 0) | |
7071 | { | |
fd3613d7 RS |
7072 | event = Fcar_safe (elt); /* alist */ |
7073 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7074 | } |
8150596a | 7075 | else |
7d6de002 | 7076 | { |
fd3613d7 | 7077 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7078 | } |
7079 | ||
7080 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7081 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7082 | { |
7083 | /* 1 if the char to type matches the string. */ | |
7084 | int char_matches; | |
7085 | Lisp_Object upcased_event, downcased_event; | |
7086 | Lisp_Object desc; | |
fd3613d7 RS |
7087 | Lisp_Object s |
7088 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7089 | |
7090 | upcased_event = Fupcase (event); | |
7091 | downcased_event = Fdowncase (event); | |
7092 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7093 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7094 | if (! char_matches) | |
7095 | desc = Fsingle_key_description (event); | |
7096 | ||
fd3613d7 RS |
7097 | tem |
7098 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7099 | if (!NILP (tem)) | |
7100 | /* Insert equivalent keybinding. */ | |
7101 | s = concat2 (s, tem); | |
7102 | ||
7103 | tem | |
7104 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7105 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7106 | { | |
7107 | /* Insert button prefix. */ | |
7108 | Lisp_Object selected | |
7109 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7110 | if (EQ (tem, QCradio)) | |
7111 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7112 | else | |
7113 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7114 | s = concat2 (tem, s); | |
7115 | } | |
7116 | ||
7117 | ||
0a2ea221 KH |
7118 | /* If we have room for the prompt string, add it to this line. |
7119 | If this is the first on the line, always add it. */ | |
7120 | if ((XSTRING (s)->size + i + 2 | |
7121 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7122 | < width | |
7123 | || !notfirst) | |
7124 | { | |
7125 | int thiswidth; | |
7126 | ||
7127 | /* Punctuate between strings. */ | |
7128 | if (notfirst) | |
7129 | { | |
7130 | strcpy (menu + i, ", "); | |
7131 | i += 2; | |
7132 | } | |
7133 | notfirst = 1; | |
7134 | nobindings = 0 ; | |
284f4730 | 7135 | |
0a2ea221 KH |
7136 | /* If the char to type doesn't match the string's |
7137 | first char, explicitly show what char to type. */ | |
7138 | if (! char_matches) | |
7139 | { | |
7140 | /* Add as much of string as fits. */ | |
7141 | thiswidth = XSTRING (desc)->size; | |
7142 | if (thiswidth + i > width) | |
7143 | thiswidth = width - i; | |
7144 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7145 | i += thiswidth; | |
7146 | strcpy (menu + i, " = "); | |
7147 | i += 3; | |
7148 | } | |
7149 | ||
7150 | /* Add as much of string as fits. */ | |
7151 | thiswidth = XSTRING (s)->size; | |
7152 | if (thiswidth + i > width) | |
7153 | thiswidth = width - i; | |
7154 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7155 | i += thiswidth; | |
7156 | menu[i] = 0; | |
7157 | } | |
7158 | else | |
7d6de002 | 7159 | { |
0a2ea221 KH |
7160 | /* If this element does not fit, end the line now, |
7161 | and save the element for the next line. */ | |
7162 | strcpy (menu + i, "..."); | |
7163 | break; | |
7d6de002 | 7164 | } |
7d6de002 RS |
7165 | } |
7166 | ||
7167 | /* Move past this element. */ | |
8150596a | 7168 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7169 | /* Handle reaching end of dense table. */ |
7170 | idx = -1; | |
7171 | if (idx >= 0) | |
7172 | idx++; | |
7173 | else | |
7174 | rest = Fcdr_safe (rest); | |
7175 | } | |
284f4730 JB |
7176 | } |
7177 | ||
7178 | /* Prompt with that and read response. */ | |
301738ed RS |
7179 | message2_nolog (menu, strlen (menu), |
7180 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7181 | |
df0f2ba1 | 7182 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7183 | is pressed. Help characters are not recorded because menu prompting |
7184 | is not used on replay. | |
7185 | */ | |
c5fdd383 KH |
7186 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7187 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
7188 | do |
7189 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 7190 | while (BUFFERP (obj)); |
c5fdd383 | 7191 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7192 | |
8c18cbfb | 7193 | if (!INTEGERP (obj)) |
284f4730 JB |
7194 | return obj; |
7195 | else | |
7196 | ch = XINT (obj); | |
7197 | ||
f4255cd1 | 7198 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7199 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7200 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7201 | { |
c5fdd383 | 7202 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7203 | store_kbd_macro_char (obj); |
8150596a RS |
7204 | return obj; |
7205 | } | |
7206 | /* Help char - go round again */ | |
284f4730 JB |
7207 | } |
7208 | } | |
284f4730 JB |
7209 | \f |
7210 | /* Reading key sequences. */ | |
7211 | ||
7212 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7213 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7214 | keymap, or nil otherwise. Return the index of the first keymap in | |
7215 | which KEY has any binding, or NMAPS if no map has a binding. | |
7216 | ||
7217 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7218 | followed by the corresponding non-meta character. Keymaps in | |
7219 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7220 | NEXT. | |
7221 | ||
88cb0656 JB |
7222 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7223 | unmodified. | |
7224 | ||
569871d2 | 7225 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7226 | |
7227 | static int | |
4e50f26a | 7228 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7229 | Lisp_Object key; |
7230 | Lisp_Object *current, *defs, *next; | |
7231 | int nmaps; | |
7232 | { | |
7233 | int i, first_binding; | |
569871d2 | 7234 | int did_meta = 0; |
284f4730 JB |
7235 | |
7236 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
7237 | followed by the corresponding non-meta character. |
7238 | Put the results into DEFS, since we are going to alter that anyway. | |
7239 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 7240 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
7241 | { |
7242 | for (i = 0; i < nmaps; i++) | |
7243 | if (! NILP (current[i])) | |
7244 | { | |
569871d2 RS |
7245 | Lisp_Object def; |
7246 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 7247 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
7248 | |
7249 | /* Note that since we pass the resulting bindings through | |
7250 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
7251 | disappear. */ | |
569871d2 | 7252 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
7253 | } |
7254 | else | |
569871d2 | 7255 | defs[i] = Qnil; |
284f4730 | 7256 | |
569871d2 | 7257 | did_meta = 1; |
18cd2eeb | 7258 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
7259 | } |
7260 | ||
7261 | first_binding = nmaps; | |
7262 | for (i = nmaps - 1; i >= 0; i--) | |
7263 | { | |
7264 | if (! NILP (current[i])) | |
7265 | { | |
569871d2 RS |
7266 | Lisp_Object map; |
7267 | if (did_meta) | |
7268 | map = defs[i]; | |
7269 | else | |
7270 | map = current[i]; | |
7271 | ||
c6a67acd | 7272 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
7273 | if (! NILP (defs[i])) |
7274 | first_binding = i; | |
7275 | } | |
7276 | else | |
7277 | defs[i] = Qnil; | |
7278 | } | |
7279 | ||
284f4730 | 7280 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7281 | if (first_binding < nmaps) |
7282 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 7283 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
7284 | |
7285 | return first_binding; | |
7286 | } | |
7287 | ||
df0f2ba1 | 7288 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7289 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7290 | Prompt with PROMPT. | |
284f4730 | 7291 | Return the length of the key sequence stored. |
dcc408a0 | 7292 | Return -1 if the user rejected a command menu. |
284f4730 | 7293 | |
f4255cd1 JB |
7294 | Echo starting immediately unless `prompt' is 0. |
7295 | ||
7296 | Where a key sequence ends depends on the currently active keymaps. | |
7297 | These include any minor mode keymaps active in the current buffer, | |
7298 | the current buffer's local map, and the global map. | |
7299 | ||
7300 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7301 | to see if some trailing subsequence might be the beginning of a | |
7302 | function key's sequence. If so, we try to read the whole function | |
7303 | key, and substitute its symbolic name into the key sequence. | |
7304 | ||
fbcd35bd JB |
7305 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7306 | `double-' events into similar click events, if that would make them | |
7307 | bound. We try to turn `triple-' events first into `double-' events, | |
7308 | then into clicks. | |
f4255cd1 JB |
7309 | |
7310 | If we get a mouse click in a mode line, vertical divider, or other | |
7311 | non-text area, we treat the click as if it were prefixed by the | |
7312 | symbol denoting that area - `mode-line', `vertical-line', or | |
7313 | whatever. | |
7314 | ||
7315 | If the sequence starts with a mouse click, we read the key sequence | |
7316 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7317 | |
f4255cd1 JB |
7318 | If the user switches frames in the midst of a key sequence, we put |
7319 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7320 | read_char will return it. |
7321 | ||
7322 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7323 | from the selected window's buffer. */ | |
48e416d4 | 7324 | |
284f4730 | 7325 | static int |
ce98e608 | 7326 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7327 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7328 | Lisp_Object *keybuf; |
7329 | int bufsize; | |
84d91fda | 7330 | Lisp_Object prompt; |
309b0fc8 | 7331 | int dont_downcase_last; |
ce98e608 | 7332 | int can_return_switch_frame; |
f571ae0d | 7333 | int fix_current_buffer; |
284f4730 | 7334 | { |
f4255cd1 JB |
7335 | int count = specpdl_ptr - specpdl; |
7336 | ||
284f4730 JB |
7337 | /* How many keys there are in the current key sequence. */ |
7338 | int t; | |
7339 | ||
284f4730 JB |
7340 | /* The length of the echo buffer when we started reading, and |
7341 | the length of this_command_keys when we started reading. */ | |
7342 | int echo_start; | |
f4255cd1 | 7343 | int keys_start; |
284f4730 JB |
7344 | |
7345 | /* The number of keymaps we're scanning right now, and the number of | |
7346 | keymaps we have allocated space for. */ | |
7347 | int nmaps; | |
7348 | int nmaps_allocated = 0; | |
7349 | ||
284f4730 JB |
7350 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7351 | the current keymaps. */ | |
7352 | Lisp_Object *defs; | |
7353 | ||
f4255cd1 JB |
7354 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7355 | in the current keymaps, or nil where it is not a prefix. */ | |
7356 | Lisp_Object *submaps; | |
7357 | ||
e0dff5f6 RS |
7358 | /* The local map to start out with at start of key sequence. */ |
7359 | Lisp_Object orig_local_map; | |
7360 | ||
7361 | /* 1 if we have already considered switching to the local-map property | |
7362 | of the place where a mouse click occurred. */ | |
7363 | int localized_local_map = 0; | |
7364 | ||
f4255cd1 JB |
7365 | /* The index in defs[] of the first keymap that has a binding for |
7366 | this key sequence. In other words, the lowest i such that | |
7367 | defs[i] is non-nil. */ | |
284f4730 JB |
7368 | int first_binding; |
7369 | ||
f4255cd1 | 7370 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7371 | input key. |
7372 | ||
7373 | We use this to recover after recognizing a function key. Once we | |
7374 | realize that a suffix of the current key sequence is actually a | |
7375 | function key's escape sequence, we replace the suffix with the | |
7376 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7377 | contains a new and different key sequence, so the echo area, |
7378 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7379 | this situation, we set mock_input to t, set t to 0, and jump to | |
7380 | restart_sequence; the loop will read keys from keybuf up until | |
7381 | mock_input, thus rebuilding the state; and then it will resume | |
7382 | reading characters from the keyboard. */ | |
284f4730 JB |
7383 | int mock_input = 0; |
7384 | ||
253598e4 | 7385 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7386 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7387 | and fkey_map is its binding. | |
253598e4 | 7388 | |
f4255cd1 JB |
7389 | These might be > t, indicating that all function key scanning |
7390 | should hold off until t reaches them. We do this when we've just | |
7391 | recognized a function key, to avoid searching for the function | |
7392 | key's again in Vfunction_key_map. */ | |
284f4730 | 7393 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 7394 | Lisp_Object fkey_map; |
284f4730 | 7395 | |
a612e298 RS |
7396 | /* Likewise, for key_translation_map. */ |
7397 | int keytran_start = 0, keytran_end = 0; | |
7398 | Lisp_Object keytran_map; | |
7399 | ||
cd21b839 JB |
7400 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7401 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 7402 | Lisp_Object delayed_switch_frame; |
cd21b839 | 7403 | |
51763820 BF |
7404 | /* See the comment below... */ |
7405 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7406 | Lisp_Object first_event; |
51763820 | 7407 | #endif |
4efda7dd | 7408 | |
309b0fc8 RS |
7409 | Lisp_Object original_uppercase; |
7410 | int original_uppercase_position = -1; | |
7411 | ||
bc536d84 | 7412 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7413 | int dummyflag = 0; |
bc536d84 | 7414 | |
3b9189f8 RS |
7415 | struct buffer *starting_buffer; |
7416 | ||
e9bf89a0 RS |
7417 | /* Nonzero if we seem to have got the beginning of a binding |
7418 | in function_key_map. */ | |
7419 | int function_key_possible = 0; | |
00a78037 | 7420 | int key_translation_possible = 0; |
e9bf89a0 | 7421 | |
3fe8e9a2 RS |
7422 | /* Save the status of key translation before each step, |
7423 | so that we can restore this after downcasing. */ | |
7424 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7425 | int prev_fkey_start; |
7426 | int prev_fkey_end; | |
3fe8e9a2 RS |
7427 | |
7428 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7429 | int prev_keytran_start; |
7430 | int prev_keytran_end; | |
3fe8e9a2 | 7431 | |
03cee6ae | 7432 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 7433 | int junk; |
03cee6ae | 7434 | #endif |
4efda7dd | 7435 | |
7d18f9ae RS |
7436 | raw_keybuf_count = 0; |
7437 | ||
4efda7dd RS |
7438 | last_nonmenu_event = Qnil; |
7439 | ||
7440 | delayed_switch_frame = Qnil; | |
7441 | fkey_map = Vfunction_key_map; | |
a612e298 | 7442 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7443 | |
a612e298 | 7444 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
7445 | if (NILP (Fkeymapp (Vfunction_key_map))) |
7446 | fkey_start = fkey_end = bufsize + 1; | |
7447 | ||
a612e298 RS |
7448 | /* If there is no key-translation-map, turn off scanning. */ |
7449 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
7450 | keytran_start = keytran_end = bufsize + 1; | |
7451 | ||
284f4730 JB |
7452 | if (INTERACTIVE) |
7453 | { | |
84d91fda RS |
7454 | if (!NILP (prompt)) |
7455 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 7456 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
7457 | /* This doesn't put in a dash if the echo buffer is empty, so |
7458 | you don't always see a dash hanging out in the minibuffer. */ | |
7459 | echo_dash (); | |
284f4730 JB |
7460 | } |
7461 | ||
f4255cd1 JB |
7462 | /* Record the initial state of the echo area and this_command_keys; |
7463 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 7464 | if (INTERACTIVE) |
df0f2ba1 | 7465 | echo_start = echo_length (); |
f4255cd1 | 7466 | keys_start = this_command_key_count; |
6321824f | 7467 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 7468 | |
51763820 BF |
7469 | #if defined (GOBBLE_FIRST_EVENT) |
7470 | /* This doesn't quite work, because some of the things that read_char | |
7471 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 7472 | this work right. */ |
51763820 | 7473 | |
4efda7dd RS |
7474 | /* Read the first char of the sequence specially, before setting |
7475 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 7476 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 7477 | &junk); |
51763820 | 7478 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 7479 | |
e0dff5f6 RS |
7480 | orig_local_map = get_local_map (PT, current_buffer); |
7481 | ||
7b4aedb9 JB |
7482 | /* We jump here when the key sequence has been thoroughly changed, and |
7483 | we need to rescan it starting from the beginning. When we jump here, | |
7484 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 7485 | replay_sequence: |
7b4aedb9 | 7486 | |
3b9189f8 | 7487 | starting_buffer = current_buffer; |
e9bf89a0 | 7488 | function_key_possible = 0; |
00a78037 | 7489 | key_translation_possible = 0; |
3b9189f8 | 7490 | |
f4255cd1 | 7491 | /* Build our list of keymaps. |
07d2b8de JB |
7492 | If we recognize a function key and replace its escape sequence in |
7493 | keybuf with its symbol, or if the sequence starts with a mouse | |
7494 | click and we need to switch buffers, we jump back here to rebuild | |
7495 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7496 | { |
284f4730 JB |
7497 | Lisp_Object *maps; |
7498 | ||
217258d5 KH |
7499 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
7500 | || !NILP (Voverriding_local_map)) | |
284f4730 | 7501 | { |
217258d5 | 7502 | if (3 > nmaps_allocated) |
9dd3131c | 7503 | { |
217258d5 KH |
7504 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
7505 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
7506 | nmaps_allocated = 3; | |
9dd3131c | 7507 | } |
217258d5 KH |
7508 | nmaps = 0; |
7509 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7510 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7511 | if (!NILP (Voverriding_local_map)) | |
7512 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 7513 | } |
9dd3131c RS |
7514 | else |
7515 | { | |
217258d5 KH |
7516 | nmaps = current_minor_maps (0, &maps); |
7517 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 7518 | { |
217258d5 KH |
7519 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
7520 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
7521 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 7522 | } |
217258d5 | 7523 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
217258d5 | 7524 | submaps[nmaps++] = orig_local_map; |
9dd3131c | 7525 | } |
217258d5 | 7526 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
7527 | } |
7528 | ||
7529 | /* Find an accurate initial value for first_binding. */ | |
7530 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 7531 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
7532 | break; |
7533 | ||
3b9189f8 | 7534 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
7535 | t = 0; |
7536 | ||
7537 | /* These are no-ops the first time through, but if we restart, they | |
7538 | revert the echo area and this_command_keys to their original state. */ | |
7539 | this_command_key_count = keys_start; | |
df0f2ba1 | 7540 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
7541 | echo_truncate (echo_start); |
7542 | ||
cca310da JB |
7543 | /* If the best binding for the current key sequence is a keymap, or |
7544 | we may be looking at a function key's escape sequence, keep on | |
7545 | reading. */ | |
253598e4 | 7546 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
7547 | || (first_binding >= nmaps |
7548 | && fkey_start < t | |
7549 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 7550 | && mock_input <= fkey_start) |
0d882d52 KH |
7551 | || (first_binding >= nmaps |
7552 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
7553 | /* Don't return in the middle of a possible function key sequence, |
7554 | if the only bindings we found were via case conversion. | |
7555 | Thus, if ESC O a has a function-key-map translation | |
7556 | and ESC o has a binding, don't return after ESC O, | |
7557 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 7558 | ) |
284f4730 JB |
7559 | { |
7560 | Lisp_Object key; | |
7d6de002 | 7561 | int used_mouse_menu = 0; |
284f4730 | 7562 | |
7b4aedb9 JB |
7563 | /* Where the last real key started. If we need to throw away a |
7564 | key that has expanded into more than one element of keybuf | |
7565 | (say, a mouse click on the mode line which is being treated | |
7566 | as [mode-line (mouse-...)], then we backtrack to this point | |
7567 | of keybuf. */ | |
7568 | int last_real_key_start; | |
7569 | ||
0a7f1fc0 JB |
7570 | /* These variables are analogous to echo_start and keys_start; |
7571 | while those allow us to restart the entire key sequence, | |
7572 | echo_local_start and keys_local_start allow us to throw away | |
7573 | just one key. */ | |
f4255cd1 JB |
7574 | int echo_local_start, keys_local_start, local_first_binding; |
7575 | ||
284f4730 | 7576 | if (t >= bufsize) |
3fe8e9a2 | 7577 | error ("Key sequence too long"); |
284f4730 | 7578 | |
f4255cd1 JB |
7579 | if (INTERACTIVE) |
7580 | echo_local_start = echo_length (); | |
7581 | keys_local_start = this_command_key_count; | |
7582 | local_first_binding = first_binding; | |
df0f2ba1 | 7583 | |
f4255cd1 | 7584 | replay_key: |
0a7f1fc0 | 7585 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
7586 | jumped back up to replay_key; in that case, these restore the |
7587 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 7588 | loop. */ |
40932d1a | 7589 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 7590 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
7591 | this_command_key_count = keys_local_start; |
7592 | first_binding = local_first_binding; | |
7593 | ||
7e85b935 RS |
7594 | /* By default, assume each event is "real". */ |
7595 | last_real_key_start = t; | |
7596 | ||
f4255cd1 | 7597 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
7598 | if (t < mock_input) |
7599 | { | |
7600 | key = keybuf[t]; | |
7601 | add_command_key (key); | |
a98ea3f9 RS |
7602 | if (echo_keystrokes) |
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 | { | |
a98ea3f9 RS |
8391 | if (echo_keystrokes) |
8392 | echo_char (keybuf[t]); | |
cca310da JB |
8393 | add_command_key (keybuf[t]); |
8394 | } | |
07f76a14 | 8395 | |
7d18f9ae RS |
8396 | |
8397 | ||
284f4730 JB |
8398 | return t; |
8399 | } | |
8400 | ||
a612e298 RS |
8401 | #if 0 /* This doc string is too long for some compilers. |
8402 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8403 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8404 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8405 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8406 | current local and global maps.\n\ | |
8407 | \n\ | |
c0a58692 RS |
8408 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8409 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8410 | as a continuation of the previous key.\n\ | |
284f4730 | 8411 | \n\ |
309b0fc8 RS |
8412 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8413 | convert the last event to lower case. (Normally any upper case event\n\ | |
8414 | is converted to lower case if the original event is undefined and the lower\n\ | |
8415 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
8416 | a key sequence to be defined.\n\ | |
8417 | \n\ | |
cb5df6ae JB |
8418 | A C-g typed while in this function is treated like any other character,\n\ |
8419 | and `quit-flag' is not set.\n\ | |
8420 | \n\ | |
8421 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
8422 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
8423 | of the selected window as normal.\n\ | |
ede41463 | 8424 | ""\n\ |
cb5df6ae JB |
8425 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
8426 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
8427 | or multi-click event is unbound, but the corresponding click event would\n\ |
8428 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 8429 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 8430 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
8431 | \n\ |
8432 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
8433 | lines separating windows, and scroll bars with imaginary keys\n\ |
8434 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 8435 | \n\ |
ce98e608 KH |
8436 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
8437 | function will process a switch-frame event if the user switches frames\n\ | |
8438 | before typing anything. If the user switches frames in the middle of a\n\ | |
8439 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
8440 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
8441 | \n\ |
8442 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
8443 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
8444 | `function-key-map' for more details.\n\ |
8445 | \n\ | |
8446 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
8447 | that this key sequence is being read by something that will\n\ | |
8448 | read commands one after another. It should be nil if the caller\n\ | |
8449 | will read just one key sequence.") | |
b638f328 | 8450 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
8451 | #endif |
8452 | ||
d5eecefb | 8453 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 8454 | 0) |
d5eecefb RS |
8455 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8456 | command_loop) | |
309b0fc8 | 8457 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8458 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
8459 | { |
8460 | Lisp_Object keybuf[30]; | |
8461 | register int i; | |
03cee6ae | 8462 | struct gcpro gcpro1; |
d5eecefb | 8463 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
8464 | |
8465 | if (!NILP (prompt)) | |
8466 | CHECK_STRING (prompt, 0); | |
8467 | QUIT; | |
8468 | ||
d5eecefb RS |
8469 | specbind (Qinput_method_exit_on_first_char, |
8470 | (NILP (command_loop) ? Qt : Qnil)); | |
8471 | specbind (Qinput_method_use_echo_area, | |
8472 | (NILP (command_loop) ? Qt : Qnil)); | |
8473 | ||
284f4730 JB |
8474 | bzero (keybuf, sizeof keybuf); |
8475 | GCPRO1 (keybuf[0]); | |
8476 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8477 | ||
daa37602 | 8478 | if (NILP (continue_echo)) |
6321824f RS |
8479 | { |
8480 | this_command_key_count = 0; | |
8481 | this_single_command_key_start = 0; | |
8482 | } | |
c0a58692 | 8483 | |
309b0fc8 | 8484 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 8485 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 8486 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 8487 | |
dcc408a0 RS |
8488 | if (i == -1) |
8489 | { | |
8490 | Vquit_flag = Qt; | |
8491 | QUIT; | |
8492 | } | |
284f4730 | 8493 | UNGCPRO; |
d5eecefb | 8494 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 8495 | } |
e39da3d7 RS |
8496 | |
8497 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 8498 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 8499 | "Like `read-key-sequence' but always return a vector.") |
d5eecefb RS |
8500 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8501 | command_loop) | |
e39da3d7 | 8502 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8503 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
8504 | { |
8505 | Lisp_Object keybuf[30]; | |
8506 | register int i; | |
03cee6ae | 8507 | struct gcpro gcpro1; |
d5eecefb | 8508 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
8509 | |
8510 | if (!NILP (prompt)) | |
8511 | CHECK_STRING (prompt, 0); | |
8512 | QUIT; | |
8513 | ||
d5eecefb RS |
8514 | specbind (Qinput_method_exit_on_first_char, |
8515 | (NILP (command_loop) ? Qt : Qnil)); | |
8516 | specbind (Qinput_method_use_echo_area, | |
8517 | (NILP (command_loop) ? Qt : Qnil)); | |
8518 | ||
e39da3d7 RS |
8519 | bzero (keybuf, sizeof keybuf); |
8520 | GCPRO1 (keybuf[0]); | |
8521 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8522 | ||
8523 | if (NILP (continue_echo)) | |
8524 | { | |
8525 | this_command_key_count = 0; | |
8526 | this_single_command_key_start = 0; | |
8527 | } | |
8528 | ||
8529 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), | |
8530 | prompt, ! NILP (dont_downcase_last), | |
8531 | ! NILP (can_return_switch_frame), 0); | |
8532 | ||
8533 | if (i == -1) | |
8534 | { | |
8535 | Vquit_flag = Qt; | |
8536 | QUIT; | |
8537 | } | |
8538 | UNGCPRO; | |
d5eecefb | 8539 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 8540 | } |
284f4730 | 8541 | \f |
158f7532 | 8542 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
8543 | "Execute CMD as an editor command.\n\ |
8544 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
8545 | Optional second arg RECORD-FLAG non-nil\n\ | |
8546 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
8547 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
8548 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 8549 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
8550 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
8551 | a special event, so ignore the prefix argument and don't clear it.") | |
8552 | (cmd, record_flag, keys, special) | |
8553 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
8554 | { |
8555 | register Lisp_Object final; | |
8556 | register Lisp_Object tem; | |
8557 | Lisp_Object prefixarg; | |
8558 | struct backtrace backtrace; | |
8559 | extern int debug_on_next_call; | |
8560 | ||
284f4730 JB |
8561 | debug_on_next_call = 0; |
8562 | ||
158f7532 RS |
8563 | if (NILP (special)) |
8564 | { | |
8565 | prefixarg = current_kboard->Vprefix_arg; | |
8566 | Vcurrent_prefix_arg = prefixarg; | |
8567 | current_kboard->Vprefix_arg = Qnil; | |
8568 | } | |
8569 | else | |
8570 | prefixarg = Qnil; | |
8571 | ||
8c18cbfb | 8572 | if (SYMBOLP (cmd)) |
284f4730 JB |
8573 | { |
8574 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 8575 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
8576 | { |
8577 | tem = Fsymbol_value (Qdisabled_command_hook); | |
8578 | if (!NILP (tem)) | |
8579 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
8580 | } | |
284f4730 JB |
8581 | } |
8582 | ||
01e26217 | 8583 | while (1) |
284f4730 | 8584 | { |
ffd56f97 | 8585 | final = Findirect_function (cmd); |
284f4730 JB |
8586 | |
8587 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
8588 | { |
8589 | struct gcpro gcpro1, gcpro2; | |
8590 | ||
8591 | GCPRO2 (cmd, prefixarg); | |
8592 | do_autoload (final, cmd); | |
8593 | UNGCPRO; | |
8594 | } | |
284f4730 JB |
8595 | else |
8596 | break; | |
8597 | } | |
8598 | ||
8c18cbfb | 8599 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
8600 | { |
8601 | /* If requested, place the macro in the command history. For | |
8602 | other sorts of commands, call-interactively takes care of | |
8603 | this. */ | |
e57d8fd8 | 8604 | if (!NILP (record_flag)) |
f4385381 RS |
8605 | { |
8606 | Vcommand_history | |
8607 | = Fcons (Fcons (Qexecute_kbd_macro, | |
8608 | Fcons (final, Fcons (prefixarg, Qnil))), | |
8609 | Vcommand_history); | |
8610 | ||
8611 | /* Don't keep command history around forever. */ | |
8612 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
8613 | { | |
8614 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
8615 | if (CONSP (tem)) | |
7539e11f | 8616 | XCDR (tem) = Qnil; |
f4385381 RS |
8617 | } |
8618 | } | |
284f4730 JB |
8619 | |
8620 | return Fexecute_kbd_macro (final, prefixarg); | |
8621 | } | |
f4385381 | 8622 | |
8c18cbfb | 8623 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
8624 | { |
8625 | backtrace.next = backtrace_list; | |
8626 | backtrace_list = &backtrace; | |
8627 | backtrace.function = &Qcall_interactively; | |
8628 | backtrace.args = &cmd; | |
8629 | backtrace.nargs = 1; | |
8630 | backtrace.evalargs = 0; | |
8631 | ||
e57d8fd8 | 8632 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
8633 | |
8634 | backtrace_list = backtrace.next; | |
8635 | return tem; | |
8636 | } | |
8637 | return Qnil; | |
8638 | } | |
8639 | \f | |
284f4730 JB |
8640 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
8641 | 1, 1, "P", | |
8642 | "Read function name, then read its arguments and call it.") | |
8643 | (prefixarg) | |
8644 | Lisp_Object prefixarg; | |
8645 | { | |
8646 | Lisp_Object function; | |
8647 | char buf[40]; | |
8648 | Lisp_Object saved_keys; | |
5434fce6 | 8649 | Lisp_Object bindings, value; |
214360e9 | 8650 | struct gcpro gcpro1, gcpro2; |
284f4730 | 8651 | |
b0f2a7bf KH |
8652 | saved_keys = Fvector (this_command_key_count, |
8653 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 8654 | buf[0] = 0; |
fde7aff8 | 8655 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
8656 | |
8657 | if (EQ (prefixarg, Qminus)) | |
8658 | strcpy (buf, "- "); | |
7539e11f | 8659 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 8660 | strcpy (buf, "C-u "); |
7539e11f | 8661 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
8662 | { |
8663 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 8664 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 8665 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 8666 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
8667 | else |
8668 | abort (); | |
8669 | } | |
8c18cbfb | 8670 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
8671 | { |
8672 | if (sizeof (int) == sizeof (EMACS_INT)) | |
8673 | sprintf (buf, "%d ", XINT (prefixarg)); | |
8674 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 8675 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
8676 | else |
8677 | abort (); | |
8678 | } | |
284f4730 JB |
8679 | |
8680 | /* This isn't strictly correct if execute-extended-command | |
8681 | is bound to anything else. Perhaps it should use | |
8682 | this_command_keys? */ | |
8683 | strcat (buf, "M-x "); | |
8684 | ||
8685 | /* Prompt with buf, and then read a string, completing from and | |
8686 | restricting to the set of all defined commands. Don't provide | |
51763820 | 8687 | any initial input. Save the command read on the extended-command |
03b4122a | 8688 | history list. */ |
284f4730 JB |
8689 | function = Fcompleting_read (build_string (buf), |
8690 | Vobarray, Qcommandp, | |
4328577a KH |
8691 | Qt, Qnil, Qextended_command_history, Qnil, |
8692 | Qnil); | |
284f4730 | 8693 | |
1f5b1641 RS |
8694 | if (STRINGP (function) && XSTRING (function)->size == 0) |
8695 | error ("No command name given"); | |
8696 | ||
1113d9db JB |
8697 | /* Set this_command_keys to the concatenation of saved_keys and |
8698 | function, followed by a RET. */ | |
284f4730 | 8699 | { |
1113d9db | 8700 | struct Lisp_String *str; |
b0f2a7bf | 8701 | Lisp_Object *keys; |
284f4730 | 8702 | int i; |
284f4730 | 8703 | |
1113d9db | 8704 | this_command_key_count = 0; |
6321824f | 8705 | this_single_command_key_start = 0; |
1113d9db | 8706 | |
b0f2a7bf KH |
8707 | keys = XVECTOR (saved_keys)->contents; |
8708 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
8709 | add_command_key (keys[i]); | |
1113d9db JB |
8710 | |
8711 | str = XSTRING (function); | |
8712 | for (i = 0; i < str->size; i++) | |
301738ed | 8713 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 8714 | |
301738ed | 8715 | add_command_key (make_number ('\015')); |
284f4730 JB |
8716 | } |
8717 | ||
8718 | UNGCPRO; | |
8719 | ||
0a7f1fc0 | 8720 | function = Fintern (function, Qnil); |
d8bcf58e | 8721 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
8722 | Vthis_command = function; |
8723 | real_this_command = function; | |
284f4730 | 8724 | |
6526ab49 RS |
8725 | /* If enabled, show which key runs this command. */ |
8726 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 8727 | && NILP (Vexecuting_macro) |
6526ab49 | 8728 | && SYMBOLP (function)) |
5434fce6 RS |
8729 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8730 | Qt, Qnil); | |
8731 | else | |
8732 | bindings = Qnil; | |
6526ab49 | 8733 | |
5434fce6 RS |
8734 | value = Qnil; |
8735 | GCPRO2 (bindings, value); | |
8736 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 8737 | |
5434fce6 | 8738 | /* If the command has a key binding, print it now. */ |
3ababa60 | 8739 | if (!NILP (bindings) |
ee112567 KH |
8740 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
8741 | Qmouse_movement))) | |
5434fce6 RS |
8742 | { |
8743 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 8744 | int delay_time; |
985f9f66 | 8745 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
8746 | /* This command displayed something in the echo area; |
8747 | so wait a few seconds, then display our suggestion message. */ | |
8748 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
8749 | ? XINT (Vsuggest_key_bindings) : 2); | |
8750 | else | |
8751 | /* This command left the echo area empty, | |
8752 | so display our message immediately. */ | |
8753 | delay_time = 0; | |
8754 | ||
8755 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 8756 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 8757 | { |
5434fce6 RS |
8758 | Lisp_Object binding; |
8759 | char *newmessage; | |
985f9f66 | 8760 | int message_p = push_message (); |
5434fce6 RS |
8761 | |
8762 | binding = Fkey_description (bindings); | |
8763 | ||
8764 | newmessage | |
8765 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 8766 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 8767 | + 100); |
3ababa60 | 8768 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 8769 | XSYMBOL (function)->name->data, |
5434fce6 | 8770 | XSTRING (binding)->data); |
301738ed RS |
8771 | message2_nolog (newmessage, |
8772 | strlen (newmessage), | |
8773 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
8774 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
8775 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
8776 | Qnil, Qnil)) |
8777 | && message_p) | |
8778 | restore_message (); | |
8779 | ||
8780 | pop_message (); | |
6526ab49 RS |
8781 | } |
8782 | } | |
8783 | ||
5434fce6 | 8784 | RETURN_UNGCPRO (value); |
284f4730 | 8785 | } |
6526ab49 RS |
8786 | |
8787 | /* Find the set of keymaps now active. | |
8788 | Store into *MAPS_P a vector holding the various maps | |
8789 | and return the number of them. The vector was malloc'd | |
8790 | and the caller should free it. */ | |
8791 | ||
8792 | int | |
8793 | current_active_maps (maps_p) | |
8794 | Lisp_Object **maps_p; | |
8795 | { | |
8796 | Lisp_Object *tmaps, *maps; | |
8797 | int nmaps; | |
8798 | ||
8799 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
8800 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8801 | { | |
8802 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8803 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
8804 | nmaps = 0; | |
8805 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8806 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8807 | if (!NILP (Voverriding_local_map)) | |
8808 | maps[nmaps++] = Voverriding_local_map; | |
8809 | } | |
8810 | else | |
8811 | { | |
8812 | /* No, so use major and minor mode keymaps. */ | |
8813 | nmaps = current_minor_maps (NULL, &tmaps); | |
8814 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
8815 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
6526ab49 | 8816 | maps[nmaps++] = get_local_map (PT, current_buffer); |
6526ab49 RS |
8817 | } |
8818 | maps[nmaps++] = current_global_map; | |
8819 | ||
8820 | *maps_p = maps; | |
8821 | return nmaps; | |
8822 | } | |
284f4730 | 8823 | \f |
d9d4c147 | 8824 | /* Return nonzero if input events are pending. */ |
284f4730 | 8825 | |
dfcf069d | 8826 | int |
284f4730 JB |
8827 | detect_input_pending () |
8828 | { | |
8829 | if (!input_pending) | |
d9d4c147 KH |
8830 | get_input_pending (&input_pending, 0); |
8831 | ||
8832 | return input_pending; | |
8833 | } | |
8834 | ||
b1878f45 | 8835 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 8836 | |
dfcf069d | 8837 | int |
87dd9b9b RS |
8838 | detect_input_pending_run_timers (do_display) |
8839 | int do_display; | |
d9d4c147 | 8840 | { |
87dd9b9b RS |
8841 | int old_timers_run = timers_run; |
8842 | ||
d9d4c147 KH |
8843 | if (!input_pending) |
8844 | get_input_pending (&input_pending, 1); | |
284f4730 | 8845 | |
87dd9b9b | 8846 | if (old_timers_run != timers_run && do_display) |
7ee32cda GM |
8847 | { |
8848 | redisplay_preserve_echo_area (); | |
8849 | /* The following fixes a bug when using lazy-lock with | |
8850 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
8851 | from an idle timer function. The symptom of the bug is that | |
8852 | the cursor sometimes doesn't become visible until the next X | |
8853 | event is processed. --gerd. */ | |
8854 | if (rif) | |
8855 | rif->flush_display (NULL); | |
8856 | } | |
87dd9b9b | 8857 | |
284f4730 JB |
8858 | return input_pending; |
8859 | } | |
8860 | ||
ffd56f97 JB |
8861 | /* This is called in some cases before a possible quit. |
8862 | It cases the next call to detect_input_pending to recompute input_pending. | |
8863 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
8864 | |
8865 | void | |
ffd56f97 JB |
8866 | clear_input_pending () |
8867 | { | |
8868 | input_pending = 0; | |
8869 | } | |
8870 | ||
b1878f45 RS |
8871 | /* Return nonzero if there are pending requeued events. |
8872 | This isn't used yet. The hope is to make wait_reading_process_input | |
8873 | call it, and return return if it runs Lisp code that unreads something. | |
8874 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
8875 | to do in that case. It isn't trivial. */ | |
8876 | ||
dfcf069d | 8877 | int |
b1878f45 RS |
8878 | requeued_events_pending_p () |
8879 | { | |
8880 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
8881 | } | |
8882 | ||
8883 | ||
284f4730 JB |
8884 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
8885 | "T if command input is currently available with no waiting.\n\ | |
8886 | Actually, the value is nil only if we can be sure that no input is available.") | |
8887 | () | |
8888 | { | |
24597608 | 8889 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
8890 | return (Qt); |
8891 | ||
d9d4c147 KH |
8892 | get_input_pending (&input_pending, 1); |
8893 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
8894 | } |
8895 | ||
8896 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 8897 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
8898 | () |
8899 | { | |
5160df46 | 8900 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
8901 | Lisp_Object val; |
8902 | ||
8903 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 8904 | return Fvector (total_keys, keys); |
284f4730 JB |
8905 | else |
8906 | { | |
5160df46 JB |
8907 | val = Fvector (NUM_RECENT_KEYS, keys); |
8908 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
8909 | XVECTOR (val)->contents, |
8910 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 8911 | bcopy (keys, |
284f4730 JB |
8912 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
8913 | recent_keys_index * sizeof (Lisp_Object)); | |
8914 | return val; | |
8915 | } | |
8916 | } | |
8917 | ||
8918 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
8919 | "Return the key sequence that invoked this command.\n\ |
8920 | The value is a string or a vector.") | |
284f4730 JB |
8921 | () |
8922 | { | |
86e5706b RS |
8923 | return make_event_array (this_command_key_count, |
8924 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
8925 | } |
8926 | ||
e39da3d7 RS |
8927 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
8928 | "Return the key sequence that invoked this command, as a vector.") | |
8929 | () | |
8930 | { | |
8931 | return Fvector (this_command_key_count, | |
8932 | XVECTOR (this_command_keys)->contents); | |
8933 | } | |
8934 | ||
6321824f RS |
8935 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
8936 | Sthis_single_command_keys, 0, 0, 0, | |
8937 | "Return the key sequence that invoked this command.\n\ | |
8938 | Unlike `this-command-keys', this function's value\n\ | |
8939 | does not include prefix arguments.\n\ | |
e39da3d7 | 8940 | The value is always a vector.") |
6321824f RS |
8941 | () |
8942 | { | |
e39da3d7 RS |
8943 | return Fvector (this_command_key_count |
8944 | - this_single_command_key_start, | |
8945 | (XVECTOR (this_command_keys)->contents | |
8946 | + this_single_command_key_start)); | |
6321824f RS |
8947 | } |
8948 | ||
7d18f9ae RS |
8949 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
8950 | Sthis_single_command_raw_keys, 0, 0, 0, | |
8951 | "Return the raw events that were read for this command.\n\ | |
8952 | Unlike `this-single-command-keys', this function's value\n\ | |
8953 | shows the events before all translations (except for input methods).\n\ | |
8954 | The value is always a vector.") | |
8955 | () | |
8956 | { | |
8957 | return Fvector (raw_keybuf_count, | |
8958 | (XVECTOR (raw_keybuf)->contents)); | |
8959 | } | |
8960 | ||
71918b75 RS |
8961 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
8962 | Sreset_this_command_lengths, 0, 0, 0, | |
8963 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
8964 | \n\ | |
8965 | `universal-argument-other-key' rereads the event just typed.\n\ | |
8966 | It then gets translated through `function-key-map'.\n\ | |
8967 | The translated event gets included in the echo area and in\n\ | |
8968 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
8969 | That is not right.\n\ | |
8970 | \n\ | |
8971 | Calling this function directs the translated event to replace\n\ | |
8972 | the original event, so that only one version of the event actually\n\ | |
8973 | appears in the echo area and in the value of `this-command-keys.'.") | |
8974 | () | |
8975 | { | |
8976 | before_command_restore_flag = 1; | |
8977 | before_command_key_count_1 = before_command_key_count; | |
8978 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 8979 | return Qnil; |
71918b75 RS |
8980 | } |
8981 | ||
82e6e5af RS |
8982 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
8983 | Sclear_this_command_keys, 0, 0, 0, | |
e27b53f6 GM |
8984 | "Clear out the vector that `this-command-keys' returns.\n\ |
8985 | Clear vector containing last 100 events.") | |
82e6e5af RS |
8986 | () |
8987 | { | |
fb0dde6c GM |
8988 | int i; |
8989 | ||
82e6e5af | 8990 | this_command_key_count = 0; |
fb0dde6c GM |
8991 | |
8992 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
8993 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
8994 | total_keys = 0; | |
8995 | recent_keys_index = 0; | |
82e6e5af RS |
8996 | return Qnil; |
8997 | } | |
8998 | ||
284f4730 JB |
8999 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
9000 | "Return the current depth in recursive edits.") | |
9001 | () | |
9002 | { | |
9003 | Lisp_Object temp; | |
bb9e9bed | 9004 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9005 | return temp; |
9006 | } | |
9007 | ||
9008 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
9009 | "FOpen dribble file: ", | |
9b2471df RS |
9010 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
9011 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
9012 | (file) |
9013 | Lisp_Object file; | |
9014 | { | |
6cb52def | 9015 | if (dribble) |
284f4730 | 9016 | { |
6cb52def KH |
9017 | fclose (dribble); |
9018 | dribble = 0; | |
284f4730 | 9019 | } |
6cb52def | 9020 | if (!NILP (file)) |
284f4730 JB |
9021 | { |
9022 | file = Fexpand_file_name (file, Qnil); | |
9023 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
9024 | if (dribble == 0) |
9025 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9026 | } |
9027 | return Qnil; | |
9028 | } | |
9029 | ||
9030 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
9031 | "Discard the contents of the terminal input buffer.\n\ | |
9032 | Also cancel any kbd macro being defined.") | |
9033 | () | |
9034 | { | |
c5fdd383 | 9035 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
9036 | update_mode_lines++; |
9037 | ||
24597608 | 9038 | Vunread_command_events = Qnil; |
86e5706b | 9039 | unread_command_char = -1; |
284f4730 JB |
9040 | |
9041 | discard_tty_input (); | |
9042 | ||
7ee32cda | 9043 | kbd_fetch_ptr = kbd_store_ptr; |
beecf6a1 | 9044 | Ffillarray (kbd_buffer_frame_or_window, Qnil); |
284f4730 JB |
9045 | input_pending = 0; |
9046 | ||
9047 | return Qnil; | |
9048 | } | |
9049 | \f | |
9050 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
9051 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
9052 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
9053 | control, run a subshell instead.\n\n\ | |
284f4730 | 9054 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
9055 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
9056 | \n\ | |
bbdc2092 RS |
9057 | Before suspending, run the normal hook `suspend-hook'.\n\ |
9058 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
9059 | \n\ |
9060 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 9061 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
9062 | (stuffstring) |
9063 | Lisp_Object stuffstring; | |
9064 | { | |
284f4730 JB |
9065 | int count = specpdl_ptr - specpdl; |
9066 | int old_height, old_width; | |
9067 | int width, height; | |
03cee6ae | 9068 | struct gcpro gcpro1; |
284f4730 JB |
9069 | |
9070 | if (!NILP (stuffstring)) | |
9071 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 9072 | |
1e95ed28 JB |
9073 | /* Run the functions in suspend-hook. */ |
9074 | if (!NILP (Vrun_hooks)) | |
9075 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9076 | |
b7d2ebbf | 9077 | GCPRO1 (stuffstring); |
ff11dfa1 | 9078 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9079 | reset_sys_modes (); |
9080 | /* sys_suspend can get an error if it tries to fork a subshell | |
9081 | and the system resources aren't available for that. */ | |
91a0da02 | 9082 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9083 | Qnil); |
284f4730 | 9084 | stuff_buffered_input (stuffstring); |
8026024c KH |
9085 | if (cannot_suspend) |
9086 | sys_subshell (); | |
9087 | else | |
9088 | sys_suspend (); | |
284f4730 JB |
9089 | unbind_to (count, Qnil); |
9090 | ||
9091 | /* Check if terminal/window size has changed. | |
9092 | Note that this is not useful when we are running directly | |
9093 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9094 | get_frame_size (&width, &height); |
284f4730 | 9095 | if (width != old_width || height != old_height) |
788f89eb | 9096 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9097 | |
1e95ed28 | 9098 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9099 | if (!NILP (Vrun_hooks)) |
9100 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9101 | |
284f4730 JB |
9102 | UNGCPRO; |
9103 | return Qnil; | |
9104 | } | |
9105 | ||
9106 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9107 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9108 | |
07a59269 | 9109 | void |
284f4730 JB |
9110 | stuff_buffered_input (stuffstring) |
9111 | Lisp_Object stuffstring; | |
9112 | { | |
284f4730 | 9113 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9114 | #ifdef BSD_SYSTEM |
284f4730 | 9115 | #ifndef BSD4_1 |
612b78ef | 9116 | register unsigned char *p; |
612b78ef | 9117 | |
8c18cbfb | 9118 | if (STRINGP (stuffstring)) |
284f4730 JB |
9119 | { |
9120 | register int count; | |
9121 | ||
9122 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9123 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9124 | while (count-- > 0) |
9125 | stuff_char (*p++); | |
9126 | stuff_char ('\n'); | |
9127 | } | |
9128 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 9129 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9130 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9131 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9132 | { |
beecf6a1 KH |
9133 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9134 | kbd_fetch_ptr = kbd_buffer; | |
9135 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9136 | stuff_char (kbd_fetch_ptr->code); | |
9137 | kbd_fetch_ptr->kind = no_event; | |
9138 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
9139 | - kbd_buffer] | |
7b4aedb9 | 9140 | = Qnil); |
284f4730 JB |
9141 | } |
9142 | input_pending = 0; | |
9143 | #endif | |
6df54671 | 9144 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9145 | } |
9146 | \f | |
dfcf069d | 9147 | void |
ffd56f97 JB |
9148 | set_waiting_for_input (time_to_clear) |
9149 | EMACS_TIME *time_to_clear; | |
284f4730 | 9150 | { |
ffd56f97 | 9151 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9152 | |
9153 | /* Tell interrupt_signal to throw back to read_char, */ | |
9154 | waiting_for_input = 1; | |
9155 | ||
9156 | /* If interrupt_signal was called before and buffered a C-g, | |
9157 | make it run again now, to avoid timing error. */ | |
9158 | if (!NILP (Vquit_flag)) | |
9159 | quit_throw_to_read_char (); | |
284f4730 JB |
9160 | } |
9161 | ||
07a59269 | 9162 | void |
284f4730 JB |
9163 | clear_waiting_for_input () |
9164 | { | |
9165 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9166 | waiting_for_input = 0; | |
ffd56f97 | 9167 | input_available_clear_time = 0; |
284f4730 JB |
9168 | } |
9169 | ||
9170 | /* This routine is called at interrupt level in response to C-G. | |
9171 | If interrupt_input, this is the handler for SIGINT. | |
9172 | Otherwise, it is called from kbd_buffer_store_event, | |
9173 | in handling SIGIO or SIGTINT. | |
9174 | ||
9175 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
9176 | immediately throw back to read_char. | |
9177 | ||
9178 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
9179 | This causes eval to throw, when it gets a chance. | |
9180 | If quit-flag is already non-nil, it stops the job right away. */ | |
9181 | ||
9182 | SIGTYPE | |
91c049d4 RS |
9183 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9184 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9185 | { |
9186 | char c; | |
9187 | /* Must preserve main program's value of errno. */ | |
9188 | int old_errno = errno; | |
788f89eb | 9189 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9190 | |
5970a8cb | 9191 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9192 | if (!read_socket_hook && NILP (Vwindow_system)) |
9193 | { | |
9194 | /* USG systems forget handlers when they are used; | |
9195 | must reestablish each time */ | |
9196 | signal (SIGINT, interrupt_signal); | |
9197 | signal (SIGQUIT, interrupt_signal); | |
9198 | } | |
284f4730 JB |
9199 | #endif /* USG */ |
9200 | ||
9201 | cancel_echoing (); | |
9202 | ||
31e4e97b | 9203 | if (!NILP (Vquit_flag) |
788f89eb | 9204 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9205 | { |
31e4e97b EZ |
9206 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9207 | another SIGINT, it might be harmful due to non-reentrancy | |
9208 | in I/O functions. */ | |
9209 | sigblock (sigmask (SIGINT)); | |
9210 | ||
284f4730 JB |
9211 | fflush (stdout); |
9212 | reset_sys_modes (); | |
31e4e97b | 9213 | |
284f4730 JB |
9214 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9215 | /* | |
9216 | * On systems which can suspend the current process and return to the original | |
9217 | * shell, this command causes the user to end up back at the shell. | |
9218 | * The "Auto-save" and "Abort" questions are not asked until | |
9219 | * the user elects to return to emacs, at which point he can save the current | |
9220 | * job and either dump core or continue. | |
9221 | */ | |
9222 | sys_suspend (); | |
9223 | #else | |
9224 | #ifdef VMS | |
9225 | if (sys_suspend () == -1) | |
9226 | { | |
9227 | printf ("Not running as a subprocess;\n"); | |
9228 | printf ("you can continue or abort.\n"); | |
9229 | } | |
9230 | #else /* not VMS */ | |
9231 | /* Perhaps should really fork an inferior shell? | |
9232 | But that would not provide any way to get back | |
9233 | to the original shell, ever. */ | |
9234 | printf ("No support for stopping a process on this operating system;\n"); | |
9235 | printf ("you can continue or abort.\n"); | |
9236 | #endif /* not VMS */ | |
9237 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9238 | #ifdef MSDOS |
9239 | /* We must remain inside the screen area when the internal terminal | |
9240 | is used. Note that [Enter] is not echoed by dos. */ | |
9241 | cursor_to (0, 0); | |
9242 | #endif | |
118d6ca9 RS |
9243 | /* It doesn't work to autosave while GC is in progress; |
9244 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9245 | if (!gc_in_progress) | |
9fd7d808 | 9246 | { |
118d6ca9 RS |
9247 | printf ("Auto-save? (y or n) "); |
9248 | fflush (stdout); | |
9249 | if (((c = getchar ()) & ~040) == 'Y') | |
9250 | { | |
9251 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9252 | #ifdef MSDOS |
118d6ca9 | 9253 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9254 | #else /* not MSDOS */ |
118d6ca9 | 9255 | printf ("Auto-save done\n"); |
80e4aa30 | 9256 | #endif /* not MSDOS */ |
118d6ca9 RS |
9257 | } |
9258 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9259 | } |
118d6ca9 RS |
9260 | else |
9261 | { | |
9262 | /* During GC, it must be safe to reenable quitting again. */ | |
9263 | Vinhibit_quit = Qnil; | |
9264 | #ifdef MSDOS | |
9265 | printf ("\r\n"); | |
9266 | #endif /* not MSDOS */ | |
9267 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9268 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9269 | fflush (stdout); | |
9270 | } | |
9271 | ||
80e4aa30 RS |
9272 | #ifdef MSDOS |
9273 | printf ("\r\nAbort? (y or n) "); | |
9274 | #else /* not MSDOS */ | |
284f4730 JB |
9275 | #ifdef VMS |
9276 | printf ("Abort (and enter debugger)? (y or n) "); | |
9277 | #else /* not VMS */ | |
9278 | printf ("Abort (and dump core)? (y or n) "); | |
9279 | #endif /* not VMS */ | |
80e4aa30 | 9280 | #endif /* not MSDOS */ |
284f4730 JB |
9281 | fflush (stdout); |
9282 | if (((c = getchar ()) & ~040) == 'Y') | |
9283 | abort (); | |
9284 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9285 | #ifdef MSDOS |
9286 | printf ("\r\nContinuing...\r\n"); | |
9287 | #else /* not MSDOS */ | |
284f4730 | 9288 | printf ("Continuing...\n"); |
80e4aa30 | 9289 | #endif /* not MSDOS */ |
284f4730 JB |
9290 | fflush (stdout); |
9291 | init_sys_modes (); | |
31e4e97b | 9292 | sigfree (); |
284f4730 JB |
9293 | } |
9294 | else | |
9295 | { | |
9296 | /* If executing a function that wants to be interrupted out of | |
9297 | and the user has not deferred quitting by binding `inhibit-quit' | |
9298 | then quit right away. */ | |
9299 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9300 | { | |
e39da3d7 RS |
9301 | struct gl_state_s saved; |
9302 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9303 | ||
284f4730 JB |
9304 | immediate_quit = 0; |
9305 | sigfree (); | |
e39da3d7 RS |
9306 | saved = gl_state; |
9307 | GCPRO4 (saved.object, saved.global_code, | |
9308 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9309 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9310 | gl_state = saved; |
9311 | UNGCPRO; | |
284f4730 JB |
9312 | } |
9313 | else | |
9314 | /* Else request quit when it's safe */ | |
9315 | Vquit_flag = Qt; | |
9316 | } | |
9317 | ||
9318 | if (waiting_for_input && !echoing) | |
9319 | quit_throw_to_read_char (); | |
9320 | ||
9321 | errno = old_errno; | |
9322 | } | |
9323 | ||
9324 | /* Handle a C-g by making read_char return C-g. */ | |
9325 | ||
07a59269 | 9326 | void |
284f4730 JB |
9327 | quit_throw_to_read_char () |
9328 | { | |
284f4730 JB |
9329 | sigfree (); |
9330 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9331 | clear_waiting_for_input (); |
284f4730 JB |
9332 | input_pending = 0; |
9333 | ||
24597608 | 9334 | Vunread_command_events = Qnil; |
86e5706b | 9335 | unread_command_char = -1; |
284f4730 | 9336 | |
087feab3 RS |
9337 | #if 0 /* Currently, sit_for is called from read_char without turning |
9338 | off polling. And that can call set_waiting_for_input. | |
9339 | It seems to be harmless. */ | |
e6b01c14 JB |
9340 | #ifdef POLL_FOR_INPUT |
9341 | /* May be > 1 if in recursive minibuffer. */ | |
9342 | if (poll_suppress_count == 0) | |
9343 | abort (); | |
9344 | #endif | |
087feab3 | 9345 | #endif |
4c52b668 | 9346 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9347 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf RS |
9348 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
9349 | Qnil, 0); | |
e6b01c14 | 9350 | |
284f4730 JB |
9351 | _longjmp (getcjmp, 1); |
9352 | } | |
9353 | \f | |
9354 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9355 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9356 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9357 | nil means use CBREAK mode.\n\ | |
9358 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9359 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9360 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9361 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9362 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9363 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9364 | See also `current-input-mode'.") | |
284f4730 JB |
9365 | (interrupt, flow, meta, quit) |
9366 | Lisp_Object interrupt, flow, meta, quit; | |
9367 | { | |
9368 | if (!NILP (quit) | |
8c18cbfb | 9369 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9370 | error ("set-input-mode: QUIT must be an ASCII character"); |
9371 | ||
9372 | #ifdef POLL_FOR_INPUT | |
9373 | stop_polling (); | |
9374 | #endif | |
284f4730 | 9375 | |
07de30b9 | 9376 | #ifndef DOS_NT |
2ee250ec | 9377 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 9378 | reset_sys_modes (); |
2ee250ec RS |
9379 | #endif |
9380 | ||
284f4730 JB |
9381 | #ifdef SIGIO |
9382 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 9383 | if (read_socket_hook) |
9a0f60bb KH |
9384 | { |
9385 | /* When using X, don't give the user a real choice, | |
9386 | because we haven't implemented the mechanisms to support it. */ | |
9387 | #ifdef NO_SOCK_SIGIO | |
9388 | interrupt_input = 0; | |
9389 | #else /* not NO_SOCK_SIGIO */ | |
9390 | interrupt_input = 1; | |
284f4730 | 9391 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
9392 | } |
9393 | else | |
284f4730 JB |
9394 | interrupt_input = !NILP (interrupt); |
9395 | #else /* not SIGIO */ | |
9396 | interrupt_input = 0; | |
9397 | #endif /* not SIGIO */ | |
9a0f60bb | 9398 | |
284f4730 JB |
9399 | /* Our VMS input only works by interrupts, as of now. */ |
9400 | #ifdef VMS | |
9401 | interrupt_input = 1; | |
9402 | #endif | |
9a0f60bb | 9403 | |
284f4730 | 9404 | flow_control = !NILP (flow); |
b04904fb RS |
9405 | if (NILP (meta)) |
9406 | meta_key = 0; | |
9407 | else if (EQ (meta, Qt)) | |
9408 | meta_key = 1; | |
9409 | else | |
9410 | meta_key = 2; | |
284f4730 JB |
9411 | if (!NILP (quit)) |
9412 | /* Don't let this value be out of range. */ | |
9413 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
9414 | ||
07de30b9 | 9415 | #ifndef DOS_NT |
284f4730 | 9416 | init_sys_modes (); |
2ee250ec | 9417 | #endif |
34f04431 RS |
9418 | |
9419 | #ifdef POLL_FOR_INPUT | |
9420 | poll_suppress_count = 1; | |
9421 | start_polling (); | |
9422 | #endif | |
284f4730 JB |
9423 | return Qnil; |
9424 | } | |
80645119 JB |
9425 | |
9426 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
9427 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
9428 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
9429 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
9430 | nil, Emacs is using CBREAK mode.\n\ | |
9431 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
9432 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
9433 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
9434 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
9435 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
9436 | all 8 bits as the character code.\n\ | |
80645119 JB |
9437 | QUIT is the character Emacs currently uses to quit.\n\ |
9438 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 9439 | `set-input-mode'.") |
80645119 JB |
9440 | () |
9441 | { | |
9442 | Lisp_Object val[4]; | |
9443 | ||
9444 | val[0] = interrupt_input ? Qt : Qnil; | |
9445 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 9446 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 9447 | XSETFASTINT (val[3], quit_char); |
80645119 | 9448 | |
bf673a7a | 9449 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
9450 | } |
9451 | ||
284f4730 | 9452 | \f |
6c6083a9 | 9453 | /* |
c5fdd383 | 9454 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
9455 | */ |
9456 | void | |
c5fdd383 KH |
9457 | init_kboard (kb) |
9458 | KBOARD *kb; | |
6c6083a9 | 9459 | { |
217258d5 | 9460 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 9461 | kb->Vlast_command = Qnil; |
75045dcb | 9462 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 9463 | kb->Vprefix_arg = Qnil; |
75045dcb | 9464 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
9465 | kb->kbd_queue = Qnil; |
9466 | kb->kbd_queue_has_data = 0; | |
9467 | kb->immediate_echo = 0; | |
9468 | kb->echoptr = kb->echobuf; | |
9469 | kb->echo_after_prompt = -1; | |
9470 | kb->kbd_macro_buffer = 0; | |
9471 | kb->kbd_macro_bufsize = 0; | |
9472 | kb->defining_kbd_macro = Qnil; | |
9473 | kb->Vlast_kbd_macro = Qnil; | |
9474 | kb->reference_count = 0; | |
7c97ffdc | 9475 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 9476 | kb->system_key_syms = Qnil; |
9ba47203 | 9477 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
9478 | } |
9479 | ||
9480 | /* | |
c5fdd383 | 9481 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 9482 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
9483 | * it a second time. |
9484 | */ | |
e50b8090 | 9485 | static void |
c5fdd383 KH |
9486 | wipe_kboard (kb) |
9487 | KBOARD *kb; | |
6c6083a9 | 9488 | { |
c5fdd383 KH |
9489 | if (kb->kbd_macro_buffer) |
9490 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
9491 | } |
9492 | ||
e50b8090 KH |
9493 | #ifdef MULTI_KBOARD |
9494 | void | |
9495 | delete_kboard (kb) | |
9496 | KBOARD *kb; | |
9497 | { | |
9498 | KBOARD **kbp; | |
9499 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
9500 | if (*kbp == NULL) | |
9501 | abort (); | |
9502 | *kbp = kb->next_kboard; | |
9503 | wipe_kboard (kb); | |
9504 | xfree (kb); | |
9505 | } | |
9506 | #endif | |
9507 | ||
dfcf069d | 9508 | void |
284f4730 JB |
9509 | init_keyboard () |
9510 | { | |
284f4730 JB |
9511 | /* This is correct before outermost invocation of the editor loop */ |
9512 | command_loop_level = -1; | |
9513 | immediate_quit = 0; | |
9514 | quit_char = Ctl ('g'); | |
24597608 | 9515 | Vunread_command_events = Qnil; |
86e5706b | 9516 | unread_command_char = -1; |
87dd9b9b | 9517 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 9518 | total_keys = 0; |
9deb415a | 9519 | recent_keys_index = 0; |
beecf6a1 KH |
9520 | kbd_fetch_ptr = kbd_buffer; |
9521 | kbd_store_ptr = kbd_buffer; | |
9522 | kbd_buffer_frame_or_window | |
9523 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 9524 | #ifdef HAVE_MOUSE |
a9d77f1f | 9525 | do_mouse_tracking = Qnil; |
2eb6bfbe | 9526 | #endif |
284f4730 JB |
9527 | input_pending = 0; |
9528 | ||
4c52b668 KH |
9529 | /* This means that command_loop_1 won't try to select anything the first |
9530 | time through. */ | |
9531 | internal_last_event_frame = Qnil; | |
9532 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 9533 | |
c5fdd383 | 9534 | #ifdef MULTI_KBOARD |
aaca43a1 | 9535 | current_kboard = initial_kboard; |
6c6083a9 | 9536 | #endif |
aaca43a1 | 9537 | wipe_kboard (current_kboard); |
c5fdd383 | 9538 | init_kboard (current_kboard); |
07d2b8de | 9539 | |
beecf6a1 KH |
9540 | if (initialized) |
9541 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
9542 | ||
9543 | kbd_buffer_frame_or_window | |
9544 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 9545 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
9546 | { |
9547 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 9548 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
9549 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
9550 | SIGQUIT and we can't tell which one it will give us. */ | |
9551 | signal (SIGQUIT, interrupt_signal); | |
9552 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 9553 | } |
284f4730 JB |
9554 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
9555 | #ifdef SIGIO | |
7a80a6f6 RS |
9556 | if (!noninteractive) |
9557 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 9558 | #endif /* SIGIO */ |
284f4730 JB |
9559 | |
9560 | /* Use interrupt input by default, if it works and noninterrupt input | |
9561 | has deficiencies. */ | |
9562 | ||
9563 | #ifdef INTERRUPT_INPUT | |
9564 | interrupt_input = 1; | |
9565 | #else | |
9566 | interrupt_input = 0; | |
9567 | #endif | |
9568 | ||
9569 | /* Our VMS input only works by interrupts, as of now. */ | |
9570 | #ifdef VMS | |
9571 | interrupt_input = 1; | |
9572 | #endif | |
9573 | ||
9574 | sigfree (); | |
9575 | dribble = 0; | |
9576 | ||
9577 | if (keyboard_init_hook) | |
9578 | (*keyboard_init_hook) (); | |
9579 | ||
9580 | #ifdef POLL_FOR_INPUT | |
9581 | poll_suppress_count = 1; | |
9582 | start_polling (); | |
9583 | #endif | |
9584 | } | |
9585 | ||
df0f2ba1 | 9586 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
9587 | event header symbols and put properties on them. */ |
9588 | struct event_head { | |
9589 | Lisp_Object *var; | |
9590 | char *name; | |
9591 | Lisp_Object *kind; | |
9592 | }; | |
9593 | ||
9594 | struct event_head head_table[] = { | |
7b4aedb9 | 9595 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 9596 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 9597 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 9598 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
9599 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
9600 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
9601 | }; |
9602 | ||
dfcf069d | 9603 | void |
284f4730 JB |
9604 | syms_of_keyboard () |
9605 | { | |
9ea173e8 | 9606 | /* Tool-bars. */ |
7ee32cda GM |
9607 | QCimage = intern (":image"); |
9608 | staticpro (&QCimage); | |
9609 | ||
9610 | staticpro (&Qhelp_echo); | |
9611 | Qhelp_echo = intern ("help-echo"); | |
9612 | ||
e8886a1d RS |
9613 | staticpro (&item_properties); |
9614 | item_properties = Qnil; | |
9615 | ||
9ea173e8 GM |
9616 | staticpro (&tool_bar_item_properties); |
9617 | tool_bar_item_properties = Qnil; | |
9618 | staticpro (&tool_bar_items_vector); | |
9619 | tool_bar_items_vector = Qnil; | |
7ee32cda | 9620 | |
d5eecefb RS |
9621 | staticpro (&real_this_command); |
9622 | real_this_command = Qnil; | |
9623 | ||
d925fb39 RS |
9624 | Qtimer_event_handler = intern ("timer-event-handler"); |
9625 | staticpro (&Qtimer_event_handler); | |
9626 | ||
2e894dab RS |
9627 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
9628 | staticpro (&Qdisabled_command_hook); | |
9629 | ||
284f4730 JB |
9630 | Qself_insert_command = intern ("self-insert-command"); |
9631 | staticpro (&Qself_insert_command); | |
9632 | ||
9633 | Qforward_char = intern ("forward-char"); | |
9634 | staticpro (&Qforward_char); | |
9635 | ||
9636 | Qbackward_char = intern ("backward-char"); | |
9637 | staticpro (&Qbackward_char); | |
9638 | ||
9639 | Qdisabled = intern ("disabled"); | |
9640 | staticpro (&Qdisabled); | |
9641 | ||
e58aa385 RS |
9642 | Qundefined = intern ("undefined"); |
9643 | staticpro (&Qundefined); | |
9644 | ||
86e5706b RS |
9645 | Qpre_command_hook = intern ("pre-command-hook"); |
9646 | staticpro (&Qpre_command_hook); | |
9647 | ||
9648 | Qpost_command_hook = intern ("post-command-hook"); | |
9649 | staticpro (&Qpost_command_hook); | |
9650 | ||
59aadc81 RS |
9651 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
9652 | staticpro (&Qpost_command_idle_hook); | |
9653 | ||
3ef14e46 RS |
9654 | Qdeferred_action_function = intern ("deferred-action-function"); |
9655 | staticpro (&Qdeferred_action_function); | |
9656 | ||
40932d1a RS |
9657 | Qcommand_hook_internal = intern ("command-hook-internal"); |
9658 | staticpro (&Qcommand_hook_internal); | |
9659 | ||
284f4730 JB |
9660 | Qfunction_key = intern ("function-key"); |
9661 | staticpro (&Qfunction_key); | |
13b5e56c | 9662 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 9663 | staticpro (&Qmouse_click); |
07de30b9 GV |
9664 | #ifdef WINDOWSNT |
9665 | Qmouse_wheel = intern ("mouse-wheel"); | |
9666 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
9667 | Qlanguage_change = intern ("language-change"); |
9668 | staticpro (&Qlanguage_change); | |
07de30b9 | 9669 | #endif |
a24dc617 RS |
9670 | Qdrag_n_drop = intern ("drag-n-drop"); |
9671 | staticpro (&Qdrag_n_drop); | |
284f4730 | 9672 | |
5bf68f6e AS |
9673 | Qusr1_signal = intern ("usr1-signal"); |
9674 | staticpro (&Qusr1_signal); | |
9675 | Qusr2_signal = intern ("usr2-signal"); | |
9676 | staticpro (&Qusr2_signal); | |
9677 | ||
598a9fa7 JB |
9678 | Qmenu_enable = intern ("menu-enable"); |
9679 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
9680 | Qmenu_alias = intern ("menu-alias"); |
9681 | staticpro (&Qmenu_alias); | |
9682 | QCenable = intern (":enable"); | |
9683 | staticpro (&QCenable); | |
9684 | QCvisible = intern (":visible"); | |
9685 | staticpro (&QCvisible); | |
7ee32cda GM |
9686 | QChelp = intern (":help"); |
9687 | staticpro (&QChelp); | |
e8886a1d RS |
9688 | QCfilter = intern (":filter"); |
9689 | staticpro (&QCfilter); | |
9690 | QCbutton = intern (":button"); | |
9691 | staticpro (&QCbutton); | |
74c1de23 RS |
9692 | QCkeys = intern (":keys"); |
9693 | staticpro (&QCkeys); | |
9694 | QCkey_sequence = intern (":key-sequence"); | |
9695 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
9696 | QCtoggle = intern (":toggle"); |
9697 | staticpro (&QCtoggle); | |
9698 | QCradio = intern (":radio"); | |
9699 | staticpro (&QCradio); | |
598a9fa7 | 9700 | |
284f4730 JB |
9701 | Qmode_line = intern ("mode-line"); |
9702 | staticpro (&Qmode_line); | |
e5d77022 JB |
9703 | Qvertical_line = intern ("vertical-line"); |
9704 | staticpro (&Qvertical_line); | |
3c370943 JB |
9705 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
9706 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
9707 | Qmenu_bar = intern ("menu-bar"); |
9708 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
9709 | |
9710 | Qabove_handle = intern ("above-handle"); | |
9711 | staticpro (&Qabove_handle); | |
9712 | Qhandle = intern ("handle"); | |
9713 | staticpro (&Qhandle); | |
9714 | Qbelow_handle = intern ("below-handle"); | |
9715 | staticpro (&Qbelow_handle); | |
db08707d RS |
9716 | Qup = intern ("up"); |
9717 | staticpro (&Qup); | |
9718 | Qdown = intern ("down"); | |
9719 | staticpro (&Qdown); | |
7ee32cda GM |
9720 | Qtop = intern ("top"); |
9721 | staticpro (&Qtop); | |
9722 | Qbottom = intern ("bottom"); | |
9723 | staticpro (&Qbottom); | |
9724 | Qend_scroll = intern ("end-scroll"); | |
9725 | staticpro (&Qend_scroll); | |
eef28553 SM |
9726 | Qratio = intern ("ratio"); |
9727 | staticpro (&Qratio); | |
284f4730 | 9728 | |
cd21b839 | 9729 | Qevent_kind = intern ("event-kind"); |
284f4730 | 9730 | staticpro (&Qevent_kind); |
88cb0656 JB |
9731 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
9732 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
9733 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
9734 | staticpro (&Qevent_symbol_element_mask); | |
9735 | Qmodifier_cache = intern ("modifier-cache"); | |
9736 | staticpro (&Qmodifier_cache); | |
284f4730 | 9737 | |
48e416d4 RS |
9738 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
9739 | staticpro (&Qrecompute_lucid_menubar); | |
9740 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
9741 | staticpro (&Qactivate_menubar_hook); | |
9742 | ||
f4eef8b4 RS |
9743 | Qpolling_period = intern ("polling-period"); |
9744 | staticpro (&Qpolling_period); | |
9745 | ||
7d18f9ae RS |
9746 | Qinput_method_function = intern ("input-method-function"); |
9747 | staticpro (&Qinput_method_function); | |
9748 | ||
d5eecefb RS |
9749 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
9750 | staticpro (&Qinput_method_exit_on_first_char); | |
9751 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
9752 | staticpro (&Qinput_method_use_echo_area); | |
9753 | ||
9754 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
9755 | Fset (Qinput_method_use_echo_area, Qnil); | |
9756 | ||
284f4730 JB |
9757 | { |
9758 | struct event_head *p; | |
9759 | ||
9760 | for (p = head_table; | |
9761 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
9762 | p++) | |
9763 | { | |
9764 | *p->var = intern (p->name); | |
9765 | staticpro (p->var); | |
9766 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 9767 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
9768 | } |
9769 | } | |
9770 | ||
7b4aedb9 JB |
9771 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
9772 | staticpro (&button_down_location); | |
88cb0656 JB |
9773 | |
9774 | { | |
9775 | int i; | |
9776 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
9777 | ||
9778 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
9779 | for (i = 0; i < len; i++) | |
86e5706b RS |
9780 | if (modifier_names[i]) |
9781 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
9782 | staticpro (&modifier_symbols); |
9783 | } | |
9784 | ||
9deb415a JB |
9785 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
9786 | staticpro (&recent_keys); | |
9787 | ||
6569cc8d | 9788 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 9789 | staticpro (&this_command_keys); |
6569cc8d | 9790 | |
7d18f9ae RS |
9791 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
9792 | staticpro (&raw_keybuf); | |
9793 | ||
03b4122a BF |
9794 | Qextended_command_history = intern ("extended-command-history"); |
9795 | Fset (Qextended_command_history, Qnil); | |
9796 | staticpro (&Qextended_command_history); | |
9797 | ||
beecf6a1 KH |
9798 | kbd_buffer_frame_or_window |
9799 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
9800 | staticpro (&kbd_buffer_frame_or_window); | |
9801 | ||
24597608 RS |
9802 | accent_key_syms = Qnil; |
9803 | staticpro (&accent_key_syms); | |
9804 | ||
284f4730 JB |
9805 | func_key_syms = Qnil; |
9806 | staticpro (&func_key_syms); | |
9807 | ||
9808 | mouse_syms = Qnil; | |
9809 | staticpro (&mouse_syms); | |
9810 | ||
07de30b9 GV |
9811 | #ifdef WINDOWSNT |
9812 | mouse_wheel_syms = Qnil; | |
9813 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
9814 | |
9815 | drag_n_drop_syms = Qnil; | |
9816 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
9817 | #endif |
9818 | ||
cd21b839 JB |
9819 | unread_switch_frame = Qnil; |
9820 | staticpro (&unread_switch_frame); | |
9821 | ||
fe412364 EN |
9822 | internal_last_event_frame = Qnil; |
9823 | staticpro (&internal_last_event_frame); | |
9824 | ||
9825 | read_key_sequence_cmd = Qnil; | |
9826 | staticpro (&read_key_sequence_cmd); | |
9827 | ||
759860a6 RS |
9828 | menu_bar_one_keymap_changed_items = Qnil; |
9829 | staticpro (&menu_bar_one_keymap_changed_items); | |
9830 | ||
a1706c30 | 9831 | defsubr (&Sevent_convert_list); |
284f4730 | 9832 | defsubr (&Sread_key_sequence); |
e39da3d7 | 9833 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 9834 | defsubr (&Srecursive_edit); |
2eb6bfbe | 9835 | #ifdef HAVE_MOUSE |
284f4730 | 9836 | defsubr (&Strack_mouse); |
2eb6bfbe | 9837 | #endif |
284f4730 JB |
9838 | defsubr (&Sinput_pending_p); |
9839 | defsubr (&Scommand_execute); | |
9840 | defsubr (&Srecent_keys); | |
9841 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 9842 | defsubr (&Sthis_command_keys_vector); |
6321824f | 9843 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 9844 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 9845 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 9846 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
9847 | defsubr (&Ssuspend_emacs); |
9848 | defsubr (&Sabort_recursive_edit); | |
9849 | defsubr (&Sexit_recursive_edit); | |
9850 | defsubr (&Srecursion_depth); | |
9851 | defsubr (&Stop_level); | |
9852 | defsubr (&Sdiscard_input); | |
9853 | defsubr (&Sopen_dribble_file); | |
9854 | defsubr (&Sset_input_mode); | |
80645119 | 9855 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
9856 | defsubr (&Sexecute_extended_command); |
9857 | ||
284f4730 | 9858 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
9859 | "Last input event that was part of a command."); |
9860 | ||
186cf719 | 9861 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 9862 | "Last input event that was part of a command."); |
284f4730 | 9863 | |
7d6de002 | 9864 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 9865 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
9866 | Mouse menus give back keys that don't look like mouse events;\n\ |
9867 | this variable holds the actual mouse event that led to the menu,\n\ | |
9868 | so that you can determine whether the command was run by mouse or not."); | |
9869 | ||
284f4730 | 9870 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
9871 | "Last input event."); |
9872 | ||
186cf719 | 9873 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 9874 | "Last input event."); |
284f4730 | 9875 | |
24597608 | 9876 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
9877 | "List of events to be read as the command input.\n\ |
9878 | These events are processed first, before actual keyboard input."); | |
9879 | Vunread_command_events = Qnil; | |
284f4730 | 9880 | |
86e5706b RS |
9881 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
9882 | "If not -1, an object to be read as next command input event."); | |
9883 | ||
7d18f9ae RS |
9884 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
9885 | "List of events to be processed as input by input methods.\n\ | |
9886 | These events are processed after `unread-command-events', but\n\ | |
9887 | before actual keyboard input."); | |
9888 | Vunread_post_input_method_events = Qnil; | |
9889 | ||
9890 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
9891 | "List of events to be processed as input by input methods.\n\ | |
9892 | These events are processed after `unread-command-events', but\n\ | |
9893 | before actual keyboard input."); | |
9894 | Vunread_input_method_events = Qnil; | |
9895 | ||
284f4730 | 9896 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
9897 | "Meta-prefix character code.\n\ |
9898 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 9899 | XSETINT (meta_prefix_char, 033); |
284f4730 | 9900 | |
6c7178b9 | 9901 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
9902 | "The last command executed.\n\ |
9903 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
9904 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
9905 | command.\n\ | |
18f29056 RS |
9906 | \n\ |
9907 | The value `mode-exit' is special; it means that the previous command\n\ | |
9908 | read an event that told it to exit, and it did so and unread that event.\n\ | |
9909 | In other words, the present command is the event that made the previous\n\ | |
9910 | command exit.\n\ | |
9911 | \n\ | |
9912 | The value `kill-region' is special; it means that the previous command\n\ | |
9913 | was a kill command."); | |
284f4730 | 9914 | |
75045dcb RS |
9915 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
9916 | "Same as `last-command', but never altered by Lisp code."); | |
9917 | ||
d5eecefb | 9918 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
9919 | "The command now being executed.\n\ |
9920 | The command can set this variable; whatever is put here\n\ | |
9921 | will be in `last-command' during the following command."); | |
d5eecefb | 9922 | Vthis_command = Qnil; |
284f4730 JB |
9923 | |
9924 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
dace7f4e | 9925 | "*Number of input events between auto-saves.\n\ |
284f4730 JB |
9926 | Zero means disable autosaving due to number of characters typed."); |
9927 | auto_save_interval = 300; | |
9928 | ||
9929 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
9930 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
9931 | Zero or nil means disable auto-saving due to idleness.\n\ |
9932 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 9933 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 9934 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
9935 | |
9936 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
9937 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
9938 | echo_keystrokes = 1; | |
9939 | ||
9940 | DEFVAR_INT ("polling-period", &polling_period, | |
9941 | "*Interval between polling for input during Lisp execution.\n\ | |
9942 | The reason for polling is to make C-g work to stop a running program.\n\ | |
9943 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
9944 | Polling is automatically disabled in all other cases."); | |
9945 | polling_period = 2; | |
df0f2ba1 | 9946 | |
564dc952 | 9947 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 9948 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
9949 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
9950 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 9951 | by position only."); |
aab06933 | 9952 | Vdouble_click_time = make_number (500); |
fbcd35bd | 9953 | |
03361bcc RS |
9954 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
9955 | "*Non-nil means inhibit local map menu bar menus."); | |
9956 | inhibit_local_menu_bar_menus = 0; | |
9957 | ||
284f4730 | 9958 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 9959 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
9960 | This includes key sequences read from keyboard macros.\n\ |
9961 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
9962 | num_input_keys = 0; |
9963 | ||
c43b1734 RS |
9964 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
9965 | "Number of input events read from the keyboard so far.\n\ | |
9966 | This does not include events generated by keyboard macros."); | |
9967 | num_nonmacro_input_events = 0; | |
fa90970d | 9968 | |
4c52b668 KH |
9969 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
9970 | "The frame in which the most recently read event occurred.\n\ | |
9971 | If the last event came from a keyboard macro, this is set to `macro'."); | |
9972 | Vlast_event_frame = Qnil; | |
9973 | ||
fa90970d RS |
9974 | /* This variable is set up in sysdep.c. */ |
9975 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
9976 | "The ERASE character as set by the user with stty."); | |
9977 | ||
7e85b935 | 9978 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
9979 | "Character to recognize as meaning Help.\n\ |
9980 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
9981 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 9982 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 9983 | |
ecb7cb34 KH |
9984 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
9985 | "List of input events to recognize as meaning Help.\n\ | |
9986 | These work just like the value of `help-char' (see that)."); | |
9987 | Vhelp_event_list = Qnil; | |
9988 | ||
284f4730 | 9989 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 9990 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
9991 | If the form returns a string, that string is displayed.\n\ |
9992 | If `help-form' is nil, the help char is not recognized."); | |
9993 | Vhelp_form = Qnil; | |
9994 | ||
7e85b935 RS |
9995 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
9996 | "Command to run when `help-char' character follows a prefix key.\n\ | |
9997 | This command is used only when there is no actual binding\n\ | |
9998 | for that character after that prefix key."); | |
9999 | Vprefix_help_command = Qnil; | |
10000 | ||
284f4730 JB |
10001 | DEFVAR_LISP ("top-level", &Vtop_level, |
10002 | "Form to evaluate when Emacs starts up.\n\ | |
10003 | Useful to set before you dump a modified Emacs."); | |
10004 | Vtop_level = Qnil; | |
10005 | ||
10006 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 10007 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 10008 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
10009 | The value may be a string, a vector, or a char-table.\n\ |
10010 | If it is a string or vector of length N,\n\ | |
10011 | character codes N and up are untranslated.\n\ | |
10012 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
10013 | Vkeyboard_translate_table = Qnil; |
10014 | ||
8026024c | 10015 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
10016 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
10017 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
10018 | cannot_suspend = 0; |
10019 | ||
284f4730 | 10020 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 10021 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 10022 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
10023 | for elements that have prompt strings.\n\ |
10024 | The menu is displayed on the screen\n\ | |
10025 | if X menus were enabled at configuration\n\ | |
10026 | time and the previous event was a mouse click prefix key.\n\ | |
10027 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
10028 | menu_prompting = 1; |
10029 | ||
10030 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
10031 | "Character to see next line of menu prompt.\n\ | |
10032 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 10033 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
10034 | |
10035 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
10036 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
10037 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
10038 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 10039 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
10040 | all input characters will have the control modifier applied to them.\n\ |
10041 | \n\ | |
9d9f56dd | 10042 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 10043 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 10044 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 10045 | cancels any modification."); |
9fa4395d | 10046 | extra_keyboard_modifiers = 0; |
86e5706b RS |
10047 | |
10048 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
10049 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
10050 | The command loop sets this to nil before each command,\n\ | |
10051 | and tests the value when the command returns.\n\ | |
10052 | Buffer modification stores t in this variable."); | |
10053 | Vdeactivate_mark = Qnil; | |
10054 | ||
b0f2a7bf KH |
10055 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
10056 | "Temporary storage of pre-command-hook or post-command-hook."); | |
10057 | Vcommand_hook_internal = Qnil; | |
10058 | ||
86e5706b | 10059 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 10060 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
10061 | If an unhandled error happens in running this hook,\n\ |
10062 | the hook value is set to nil, since otherwise the error\n\ | |
10063 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
10064 | Vpre_command_hook = Qnil; |
10065 | ||
10066 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 10067 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
10068 | If an unhandled error happens in running this hook,\n\ |
10069 | the hook value is set to nil, since otherwise the error\n\ | |
10070 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 10071 | Vpost_command_hook = Qnil; |
48e416d4 | 10072 | |
59aadc81 RS |
10073 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
10074 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
10075 | Errors running the hook are caught and ignored.\n\ |
10076 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
10077 | Vpost_command_idle_hook = Qnil; |
10078 | ||
10079 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 10080 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
10081 | This is measured in microseconds."); |
10082 | post_command_idle_delay = 100000; | |
10083 | ||
cdb9d665 RS |
10084 | #if 0 |
10085 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
10086 | "Normal hook run when clearing the echo area."); | |
10087 | #endif | |
10088 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10089 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
10090 | ||
48e416d4 RS |
10091 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
10092 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
10093 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 10094 | |
9f9c0e27 RS |
10095 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
10096 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 10097 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10098 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10099 | |
217258d5 KH |
10100 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10101 | Voverriding_terminal_local_map, | |
779b34df | 10102 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10103 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
10104 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
10105 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
10106 | set up a different keymap for reading the next command."); | |
217258d5 | 10107 | |
9dd3131c RS |
10108 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10109 | "Keymap that overrides all other local keymaps.\n\ | |
10110 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10111 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10112 | Voverriding_local_map = Qnil; | |
10113 | ||
d0a49716 RS |
10114 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10115 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10116 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10117 | and the minor mode maps regardless of `overriding-local-map'."); | |
10118 | Voverriding_local_map_menu_flag = Qnil; | |
10119 | ||
7f07d5ca RS |
10120 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10121 | "Keymap defining bindings for special events to execute at low level."); | |
10122 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10123 | ||
71edead1 | 10124 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10125 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10126 | |
7c97ffdc | 10127 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10128 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10129 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10130 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10131 | and SYMBOL is its name."); |
8a792f3a RS |
10132 | |
10133 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10134 | "List of deferred actions to be performed at a later time.\n\ | |
10135 | The precise format isn't relevant here; we just check whether it is nil."); | |
10136 | Vdeferred_action_list = Qnil; | |
10137 | ||
10138 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10139 | "Function to call to handle deferred actions, after each command.\n\ | |
10140 | This function is called with no arguments after each command\n\ | |
10141 | whenever `deferred-action-list' is non-nil."); | |
10142 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10143 | |
10144 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10145 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10146 | The value can be a length of time to show the message for.\n\ |
10147 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10148 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10149 | |
c04cbc3b | 10150 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10151 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10152 | Vtimer_list = Qnil; |
d9d4c147 KH |
10153 | |
10154 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10155 | "List of active idle-time timers in order of increasing time"); | |
10156 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10157 | |
10158 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10159 | "If non-nil, the function that implements the current input method.\n\ | |
10160 | It's called with one argument, a printing character that was just read.\n\ | |
10161 | \(That means a character with code 040...0176.)\n\ | |
10162 | Typically this function uses `read-event' to read additional events.\n\ | |
10163 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10164 | so it will not be called recursively.\n\ | |
10165 | \n\ | |
10166 | The function should return a list of zero or more events\n\ | |
10167 | to be used as input. If it wants to put back some events\n\ | |
10168 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10169 | it can add them to the beginning of `unread-command-events'.\n\ |
10170 | \n\ | |
10171 | The input method function can find in `input-method-previous-method'\n\ | |
10172 | the previous echo area message.\n\ | |
10173 | \n\ | |
10174 | The input method function should refer to the variables\n\ | |
10175 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10176 | for guidance on what to do."); | |
7d18f9ae | 10177 | Vinput_method_function = Qnil; |
d5eecefb RS |
10178 | |
10179 | DEFVAR_LISP ("input-method-previous-message", | |
10180 | &Vinput_method_previous_message, | |
a8b13665 | 10181 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10182 | This variable exists because `read-event' clears the echo area\n\ |
10183 | before running the input method. It is nil if there was no message."); | |
10184 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10185 | |
10186 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10187 | "If non-nil, the function that implements the display of help.\n\ | |
10188 | It's called with one argument, the help string to display."); | |
10189 | Vshow_help_function = Qnil; | |
adf5cb9c KH |
10190 | |
10191 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
10192 | "If non-nil, suppress point adjustment after executing a command.\n\ | |
10193 | \n\ | |
10194 | After a command is executed, if point is moved into a region that has\n\ | |
10195 | special properties (e.g. composition, display), we adjust point to\n\ | |
10196 | the boundary of the region. But, several special commands sets this\n\ | |
10197 | variable to non-nil, then we suppress the point adjustment.\n\ | |
10198 | \n\ | |
10199 | This variable is set to nil before reading a command, and is checked\n\ | |
10200 | just after executing the command"); | |
10201 | Vdisable_point_adjustment = Qnil; | |
10202 | ||
10203 | DEFVAR_LISP ("global-disable-point-adjustment", | |
10204 | &Vglobal_disable_point_adjustment, | |
10205 | "*If non-nil, always suppress point adjustment.\n\ | |
10206 | \n\ | |
10207 | The default value is nil, in which case, point adjustment are\n\ | |
10208 | suppressed only after special commands that set\n\ | |
10209 | `disable-point-adjustment' (which see) to non-nil."); | |
10210 | Vglobal_disable_point_adjustment = Qnil; | |
284f4730 JB |
10211 | } |
10212 | ||
dfcf069d | 10213 | void |
284f4730 JB |
10214 | keys_of_keyboard () |
10215 | { | |
10216 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10217 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10218 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10219 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10220 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10221 | |
10222 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10223 | "handle-delete-frame"); | |
10224 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10225 | "ignore-event"); | |
10226 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10227 | "ignore-event"); | |
284f4730 | 10228 | } |