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" |
284f4730 JB |
41 | #include <setjmp.h> |
42 | #include <errno.h> | |
43 | ||
80e4aa30 RS |
44 | #ifdef MSDOS |
45 | #include "msdos.h" | |
46 | #include <time.h> | |
47 | #else /* not MSDOS */ | |
284f4730 JB |
48 | #ifndef VMS |
49 | #include <sys/ioctl.h> | |
284f4730 | 50 | #endif |
80e4aa30 | 51 | #endif /* not MSDOS */ |
284f4730 | 52 | |
52baf19e | 53 | #include "syssignal.h" |
6ef5b54f | 54 | #include "systty.h" |
52baf19e | 55 | |
03cee6ae GM |
56 | #include <sys/types.h> |
57 | #ifdef HAVE_UNISTD_H | |
58 | #include <unistd.h> | |
59 | #endif | |
60 | ||
c5e3b6c5 RS |
61 | /* This is to get the definitions of the XK_ symbols. */ |
62 | #ifdef HAVE_X_WINDOWS | |
63 | #include "xterm.h" | |
64 | #endif | |
65 | ||
e98a93eb GV |
66 | #ifdef HAVE_NTGUI |
67 | #include "w32term.h" | |
68 | #endif /* HAVE_NTGUI */ | |
69 | ||
0c2611c5 RS |
70 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
71 | #include "systime.h" | |
72 | ||
52baf19e JB |
73 | extern int errno; |
74 | ||
9ac0d9e0 JB |
75 | /* Variables for blockinput.h: */ |
76 | ||
77 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 78 | int interrupt_input_blocked; |
9ac0d9e0 JB |
79 | |
80 | /* Nonzero means an input interrupt has arrived | |
81 | during the current critical section. */ | |
63927c41 | 82 | int interrupt_input_pending; |
9ac0d9e0 JB |
83 | |
84 | ||
437f6112 RS |
85 | /* File descriptor to use for input. */ |
86 | extern int input_fd; | |
284f4730 | 87 | |
e98a93eb | 88 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 89 | /* Make all keyboard buffers much bigger when using X windows. */ |
f019cded RS |
90 | #ifdef macintosh |
91 | /* But not too big (local data > 32K error) if on macintosh */ | |
92 | #define KBD_BUFFER_SIZE 512 | |
93 | #else | |
284f4730 | 94 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 95 | #endif |
284f4730 JB |
96 | #else /* No X-windows, character input */ |
97 | #define KBD_BUFFER_SIZE 256 | |
98 | #endif /* No X-windows */ | |
99 | ||
100 | /* Following definition copied from eval.c */ | |
101 | ||
102 | struct backtrace | |
103 | { | |
104 | struct backtrace *next; | |
105 | Lisp_Object *function; | |
106 | Lisp_Object *args; /* Points to vector of args. */ | |
107 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
108 | args points to slot holding list of | |
109 | unevalled args */ | |
110 | char evalargs; | |
111 | }; | |
112 | ||
c5fdd383 KH |
113 | #ifdef MULTI_KBOARD |
114 | KBOARD *initial_kboard; | |
115 | KBOARD *current_kboard; | |
116 | KBOARD *all_kboards; | |
1e8bd3da | 117 | int single_kboard; |
6c6083a9 | 118 | #else |
c5fdd383 | 119 | KBOARD the_only_kboard; |
6c6083a9 | 120 | #endif |
612b78ef | 121 | |
284f4730 JB |
122 | /* Non-nil disable property on a command means |
123 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 124 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
125 | |
126 | #define NUM_RECENT_KEYS (100) | |
127 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
128 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 129 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 130 | |
6569cc8d JB |
131 | /* Vector holding the key sequence that invoked the current command. |
132 | It is reused for each command, and it may be longer than the current | |
133 | sequence; this_command_key_count indicates how many elements | |
134 | actually mean something. | |
135 | It's easier to staticpro a single Lisp_Object than an array. */ | |
136 | Lisp_Object this_command_keys; | |
137 | int this_command_key_count; | |
284f4730 | 138 | |
7d18f9ae RS |
139 | /* This vector is used as a buffer to record the events that were actually read |
140 | by read_key_sequence. */ | |
141 | Lisp_Object raw_keybuf; | |
142 | int raw_keybuf_count; | |
143 | ||
144 | #define GROW_RAW_KEYBUF \ | |
145 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
146 | { \ | |
147 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
148 | Lisp_Object new; \ | |
149 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
150 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
151 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
152 | raw_keybuf = new; \ | |
153 | } | |
154 | ||
6321824f RS |
155 | /* Number of elements of this_command_keys |
156 | that precede this key sequence. */ | |
157 | int this_single_command_key_start; | |
158 | ||
71918b75 RS |
159 | /* Record values of this_command_key_count and echo_length () |
160 | before this command was read. */ | |
161 | static int before_command_key_count; | |
162 | static int before_command_echo_length; | |
163 | /* Values of before_command_key_count and before_command_echo_length | |
164 | saved by reset-this-command-lengths. */ | |
165 | static int before_command_key_count_1; | |
166 | static int before_command_echo_length_1; | |
167 | /* Flag set by reset-this-command-lengths, | |
168 | saying to reset the lengths when add_command_key is called. */ | |
169 | static int before_command_restore_flag; | |
170 | ||
284f4730 JB |
171 | extern int minbuf_level; |
172 | ||
a59b172a RS |
173 | extern int message_enable_multibyte; |
174 | ||
284f4730 JB |
175 | extern struct backtrace *backtrace_list; |
176 | ||
7ee32cda GM |
177 | /* If non-nil, the function that implements the display of help. |
178 | It's called with one argument, the help string to display. */ | |
179 | ||
180 | Lisp_Object Vshow_help_function; | |
181 | ||
284f4730 JB |
182 | /* Nonzero means do menu prompting. */ |
183 | static int menu_prompting; | |
184 | ||
185 | /* Character to see next line of menu prompt. */ | |
186 | static Lisp_Object menu_prompt_more_char; | |
187 | ||
188 | /* For longjmp to where kbd input is being done. */ | |
189 | static jmp_buf getcjmp; | |
190 | ||
191 | /* True while doing kbd input. */ | |
192 | int waiting_for_input; | |
193 | ||
194 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 195 | |
284f4730 JB |
196 | static int echoing; |
197 | ||
985f9f66 GM |
198 | /* Non-null means we can start echoing at the next input pause even |
199 | though there is something in the echo area. */ | |
200 | ||
201 | static struct kboard *ok_to_echo_at_next_pause; | |
202 | ||
203 | /* The kboard currently echoing, or null for none. Set in echo_now to | |
204 | the kboard echoing. Reset to 0 in cancel_echoing. If non-null, | |
205 | and a current echo area message exists, we know that it comes from | |
206 | echoing. */ | |
207 | ||
208 | static struct kboard *echo_kboard; | |
1fc93d49 | 209 | |
03361bcc RS |
210 | /* Nonzero means disregard local maps for the menu bar. */ |
211 | static int inhibit_local_menu_bar_menus; | |
212 | ||
80e4aa30 | 213 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
214 | int immediate_quit; |
215 | ||
fa90970d RS |
216 | /* The user's ERASE setting. */ |
217 | Lisp_Object Vtty_erase_char; | |
218 | ||
284f4730 | 219 | /* Character to recognize as the help char. */ |
7e85b935 | 220 | Lisp_Object Vhelp_char; |
284f4730 | 221 | |
ecb7cb34 KH |
222 | /* List of other event types to recognize as meaning "help". */ |
223 | Lisp_Object Vhelp_event_list; | |
224 | ||
284f4730 JB |
225 | /* Form to execute when help char is typed. */ |
226 | Lisp_Object Vhelp_form; | |
227 | ||
7e85b935 RS |
228 | /* Command to run when the help character follows a prefix key. */ |
229 | Lisp_Object Vprefix_help_command; | |
230 | ||
9f9c0e27 RS |
231 | /* List of items that should move to the end of the menu bar. */ |
232 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 233 | |
6526ab49 RS |
234 | /* Non-nil means show the equivalent key-binding for |
235 | any M-x command that has one. | |
236 | The value can be a length of time to show the message for. | |
237 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
238 | Lisp_Object Vsuggest_key_bindings; | |
239 | ||
284f4730 JB |
240 | /* Character that causes a quit. Normally C-g. |
241 | ||
242 | If we are running on an ordinary terminal, this must be an ordinary | |
243 | ASCII char, since we want to make it our interrupt character. | |
244 | ||
245 | If we are not running on an ordinary terminal, it still needs to be | |
246 | an ordinary ASCII char. This character needs to be recognized in | |
247 | the input interrupt handler. At this point, the keystroke is | |
248 | represented as a struct input_event, while the desired quit | |
249 | character is specified as a lispy event. The mapping from struct | |
250 | input_events to lispy events cannot run in an interrupt handler, | |
251 | and the reverse mapping is difficult for anything but ASCII | |
252 | keystrokes. | |
253 | ||
254 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
255 | ASCII character. */ | |
256 | int quit_char; | |
257 | ||
258 | extern Lisp_Object current_global_map; | |
259 | extern int minibuf_level; | |
260 | ||
9dd3131c RS |
261 | /* If non-nil, this is a map that overrides all other local maps. */ |
262 | Lisp_Object Voverriding_local_map; | |
263 | ||
d0a49716 RS |
264 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
265 | Lisp_Object Voverriding_local_map_menu_flag; | |
266 | ||
7f07d5ca RS |
267 | /* Keymap that defines special misc events that should |
268 | be processed immediately at a low level. */ | |
269 | Lisp_Object Vspecial_event_map; | |
270 | ||
284f4730 JB |
271 | /* Current depth in recursive edits. */ |
272 | int command_loop_level; | |
273 | ||
274 | /* Total number of times command_loop has read a key sequence. */ | |
275 | int num_input_keys; | |
276 | ||
277 | /* Last input character read as a command. */ | |
278 | Lisp_Object last_command_char; | |
279 | ||
7d6de002 RS |
280 | /* Last input character read as a command, not counting menus |
281 | reached by the mouse. */ | |
282 | Lisp_Object last_nonmenu_event; | |
283 | ||
284f4730 JB |
284 | /* Last input character read for any purpose. */ |
285 | Lisp_Object last_input_char; | |
286 | ||
dbc4e1c1 | 287 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 288 | Lisp_Object Vunread_command_events; |
284f4730 | 289 | |
7d18f9ae RS |
290 | /* If not Qnil, a list of objects to be read as subsequent command input |
291 | including input method processing. */ | |
292 | Lisp_Object Vunread_input_method_events; | |
293 | ||
294 | /* If not Qnil, a list of objects to be read as subsequent command input | |
295 | but NOT including input method processing. */ | |
296 | Lisp_Object Vunread_post_input_method_events; | |
297 | ||
86e5706b RS |
298 | /* If not -1, an event to be read as subsequent command input. */ |
299 | int unread_command_char; | |
300 | ||
cd21b839 JB |
301 | /* If not Qnil, this is a switch-frame event which we decided to put |
302 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 303 | next command input, after any unread_command_events. |
8f805655 JB |
304 | |
305 | read_key_sequence uses this to delay switch-frame events until the | |
306 | end of the key sequence; Fread_char uses it to put off switch-frame | |
307 | events until a non-ASCII event is acceptable as input. */ | |
308 | Lisp_Object unread_switch_frame; | |
cd21b839 | 309 | |
9fa4395d RS |
310 | /* A mask of extra modifier bits to put into every keyboard char. */ |
311 | int extra_keyboard_modifiers; | |
312 | ||
284f4730 JB |
313 | /* Char to use as prefix when a meta character is typed in. |
314 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
315 | ||
316 | Lisp_Object meta_prefix_char; | |
317 | ||
318 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
319 | static int last_non_minibuf_size; | |
320 | ||
06ef7355 | 321 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
322 | static Lisp_Object Vauto_save_timeout; |
323 | ||
324 | /* Total number of times read_char has returned. */ | |
4abfba1f | 325 | int num_input_events; |
284f4730 | 326 | |
51172b6d | 327 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 328 | int num_nonmacro_input_events; |
51172b6d | 329 | |
284f4730 JB |
330 | /* Auto-save automatically when this many characters have been typed |
331 | since the last time. */ | |
332 | ||
333 | static int auto_save_interval; | |
334 | ||
c43b1734 | 335 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
336 | |
337 | int last_auto_save; | |
338 | ||
284f4730 | 339 | /* The command being executed by the command loop. |
6c7178b9 KH |
340 | Commands may set this, and the value set will be copied into |
341 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
342 | Lisp_Object Vthis_command; |
343 | ||
344 | /* This is like Vthis_command, except that commands never set it. */ | |
345 | Lisp_Object real_this_command; | |
284f4730 | 346 | |
b453f72e KH |
347 | /* The value of point when the last command was executed. */ |
348 | int last_point_position; | |
349 | ||
047688cb RS |
350 | /* The buffer that was current when the last command was started. */ |
351 | Lisp_Object last_point_position_buffer; | |
352 | ||
4c52b668 KH |
353 | /* The frame in which the last input event occurred, or Qmacro if the |
354 | last event came from a macro. We use this to determine when to | |
355 | generate switch-frame events. This may be cleared by functions | |
356 | like Fselect_frame, to make sure that a switch-frame event is | |
357 | generated by the next character. */ | |
358 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
359 | |
360 | /* A user-visible version of the above, intended to allow users to | |
361 | figure out where the last event came from, if the event doesn't | |
362 | carry that information itself (i.e. if it was a character). */ | |
363 | Lisp_Object Vlast_event_frame; | |
364 | ||
1113d9db JB |
365 | /* The timestamp of the last input event we received from the X server. |
366 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
367 | unsigned long last_event_timestamp; |
368 | ||
369 | Lisp_Object Qself_insert_command; | |
370 | Lisp_Object Qforward_char; | |
371 | Lisp_Object Qbackward_char; | |
e58aa385 | 372 | Lisp_Object Qundefined; |
d925fb39 | 373 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
374 | |
375 | /* read_key_sequence stores here the command definition of the | |
376 | key sequence that it reads. */ | |
377 | Lisp_Object read_key_sequence_cmd; | |
378 | ||
379 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
380 | Lisp_Object Vtop_level; | |
381 | ||
382 | /* User-supplied string to translate input characters through. */ | |
383 | Lisp_Object Vkeyboard_translate_table; | |
384 | ||
385 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
386 | extern Lisp_Object Vfunction_key_map; | |
387 | ||
e0301c07 RS |
388 | /* Another keymap that maps key sequences into key sequences. |
389 | This one takes precedence over ordinary definitions. */ | |
390 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 391 | |
7d18f9ae RS |
392 | /* If non-nil, this implements the current input method. */ |
393 | Lisp_Object Vinput_method_function; | |
394 | Lisp_Object Qinput_method_function; | |
395 | ||
d5eecefb RS |
396 | /* When we call Vinput_method_function, |
397 | this holds the echo area message that was just erased. */ | |
398 | Lisp_Object Vinput_method_previous_message; | |
399 | ||
86e5706b RS |
400 | /* Non-nil means deactivate the mark at end of this command. */ |
401 | Lisp_Object Vdeactivate_mark; | |
402 | ||
48e416d4 RS |
403 | /* Menu bar specified in Lucid Emacs fashion. */ |
404 | ||
405 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
406 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
407 | ||
cdb9d665 RS |
408 | Lisp_Object Qecho_area_clear_hook; |
409 | ||
86e5706b | 410 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
411 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
412 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 413 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
414 | /* Hook run after a command if there's no more input soon. */ |
415 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
416 | ||
417 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
418 | int post_command_idle_delay; | |
86e5706b | 419 | |
8a792f3a RS |
420 | /* List of deferred actions to be performed at a later time. |
421 | The precise format isn't relevant here; we just check whether it is nil. */ | |
422 | Lisp_Object Vdeferred_action_list; | |
423 | ||
424 | /* Function to call to handle deferred actions, when there are any. */ | |
425 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 426 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 427 | |
d5eecefb RS |
428 | Lisp_Object Qinput_method_exit_on_first_char; |
429 | Lisp_Object Qinput_method_use_echo_area; | |
430 | ||
284f4730 JB |
431 | /* File in which we write all commands we read. */ |
432 | FILE *dribble; | |
433 | ||
434 | /* Nonzero if input is available. */ | |
435 | int input_pending; | |
436 | ||
b04904fb RS |
437 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
438 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
439 | ||
284f4730 JB |
440 | int meta_key; |
441 | ||
442 | extern char *pending_malloc_warning; | |
443 | ||
beecf6a1 KH |
444 | /* Circular buffer for pre-read keyboard input. */ |
445 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
446 | ||
447 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
448 | ||
449 | The interrupt-level event handlers will never enqueue an event on a | |
450 | frame which is not in Vframe_list, and once an event is dequeued, | |
451 | internal_last_event_frame or the event itself points to the frame. | |
452 | So that's all fine. | |
453 | ||
454 | But while the event is sitting in the queue, it's completely | |
455 | unprotected. Suppose the user types one command which will run for | |
456 | a while and then delete a frame, and then types another event at | |
457 | the frame that will be deleted, before the command gets around to | |
458 | it. Suppose there are no references to this frame elsewhere in | |
459 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
460 | have an event referring to a freed frame, which will crash Emacs | |
461 | when it is dequeued. | |
462 | ||
463 | Similar things happen when an event on a scroll bar is enqueued; the | |
464 | window may be deleted while the event is in the queue. | |
465 | ||
466 | So, we use this vector to protect the frame_or_window field in the | |
467 | event queue. That way, they'll be dequeued as dead frames or | |
468 | windows, but still valid lisp objects. | |
469 | ||
470 | If kbd_buffer[i].kind != no_event, then | |
471 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
472 | == kbd_buffer[i].frame_or_window. */ | |
473 | static Lisp_Object kbd_buffer_frame_or_window; | |
474 | ||
475 | /* Pointer to next available character in kbd_buffer. | |
476 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
477 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
478 | next available char is in kbd_buffer[0]. */ | |
479 | static struct input_event *kbd_fetch_ptr; | |
480 | ||
481 | /* Pointer to next place to store character in kbd_buffer. This | |
482 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
483 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 484 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
485 | |
486 | /* The above pair of variables forms a "queue empty" flag. When we | |
487 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
488 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
489 | there is input available iff the two pointers are not equal. | |
490 | ||
491 | Why not just have a flag set and cleared by the enqueuing and | |
492 | dequeuing functions? Such a flag could be screwed up by interrupts | |
493 | at inopportune times. */ | |
494 | ||
f3253854 | 495 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
496 | mouse moves, and motion events will appear in the input stream. |
497 | Otherwise, mouse motion is ignored. */ | |
498 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 499 | |
284f4730 JB |
500 | /* Symbols to head events. */ |
501 | Lisp_Object Qmouse_movement; | |
3c370943 | 502 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 503 | Lisp_Object Qswitch_frame; |
bbdc2092 | 504 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
505 | Lisp_Object Qiconify_frame; |
506 | Lisp_Object Qmake_frame_visible; | |
7ee32cda | 507 | Lisp_Object Qhelp_echo; |
cd21b839 | 508 | |
284f4730 JB |
509 | /* Symbols to denote kinds of events. */ |
510 | Lisp_Object Qfunction_key; | |
511 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
512 | #ifdef WINDOWSNT |
513 | Lisp_Object Qmouse_wheel; | |
1161d367 | 514 | Lisp_Object Qlanguage_change; |
07de30b9 | 515 | #endif |
a24dc617 | 516 | Lisp_Object Qdrag_n_drop; |
284f4730 | 517 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
518 | |
519 | /* Properties of event headers. */ | |
520 | Lisp_Object Qevent_kind; | |
88cb0656 | 521 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 522 | |
e8886a1d RS |
523 | /* menu item parts */ |
524 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 525 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
526 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
527 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
528 | extern Lisp_Object Vdefine_key_rebound_commands; |
529 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 530 | |
0a7f1fc0 JB |
531 | /* An event header symbol HEAD may have a property named |
532 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
533 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
534 | mask of modifiers applied to it. If present, this is used to help | |
535 | speed up parse_modifiers. */ | |
536 | Lisp_Object Qevent_symbol_element_mask; | |
537 | ||
538 | /* An unmodified event header BASE may have a property named | |
539 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
540 | modified versions of BASE. If present, this helps speed up | |
541 | apply_modifiers. */ | |
542 | Lisp_Object Qmodifier_cache; | |
543 | ||
5ec75a55 | 544 | /* Symbols to use for parts of windows. */ |
284f4730 | 545 | Lisp_Object Qmode_line; |
e5d77022 | 546 | Lisp_Object Qvertical_line; |
3c370943 | 547 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
548 | Lisp_Object Qmenu_bar; |
549 | ||
f4255cd1 JB |
550 | Lisp_Object recursive_edit_unwind (), command_loop (); |
551 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 552 | Lisp_Object Qextended_command_history; |
c04cbc3b | 553 | EMACS_TIME timer_check (); |
284f4730 | 554 | |
f4385381 RS |
555 | extern Lisp_Object Vhistory_length; |
556 | ||
2c834fb3 KH |
557 | extern char *x_get_keysym_name (); |
558 | ||
8eb4d8ef RS |
559 | static void record_menu_key (); |
560 | ||
f4eef8b4 RS |
561 | Lisp_Object Qpolling_period; |
562 | ||
d9d4c147 | 563 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
564 | Lisp_Object Vtimer_list; |
565 | ||
d9d4c147 KH |
566 | /* List of idle time timers. Appears in order of next scheduled event. */ |
567 | Lisp_Object Vtimer_idle_list; | |
568 | ||
87dd9b9b RS |
569 | /* Incremented whenever a timer is run. */ |
570 | int timers_run; | |
571 | ||
a9f16aa9 KH |
572 | extern Lisp_Object Vprint_level, Vprint_length; |
573 | ||
ffd56f97 JB |
574 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
575 | happens. */ | |
576 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
577 | |
578 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
579 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
580 | int interrupt_input; | |
581 | ||
582 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
583 | int interrupts_deferred; | |
584 | ||
87dd9b9b | 585 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
586 | int flow_control; |
587 | ||
284f4730 JB |
588 | /* Allow m- file to inhibit use of FIONREAD. */ |
589 | #ifdef BROKEN_FIONREAD | |
590 | #undef FIONREAD | |
591 | #endif | |
592 | ||
593 | /* We are unable to use interrupts if FIONREAD is not available, | |
594 | so flush SIGIO so we won't try. */ | |
595 | #ifndef FIONREAD | |
596 | #ifdef SIGIO | |
597 | #undef SIGIO | |
598 | #endif | |
599 | #endif | |
600 | ||
e98a93eb | 601 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 602 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 603 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
604 | #define POLL_FOR_INPUT |
605 | #endif | |
284f4730 JB |
606 | \f |
607 | /* Global variable declarations. */ | |
608 | ||
609 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
610 | void (*keyboard_init_hook) (); | |
611 | ||
612 | static int read_avail_input (); | |
613 | static void get_input_pending (); | |
9fd7d808 | 614 | static int readable_events (); |
8150596a RS |
615 | static Lisp_Object read_char_x_menu_prompt (); |
616 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 617 | static Lisp_Object make_lispy_event (); |
514354e9 | 618 | #ifdef HAVE_MOUSE |
a612e298 | 619 | static Lisp_Object make_lispy_movement (); |
514354e9 | 620 | #endif |
a612e298 RS |
621 | static Lisp_Object modify_event_symbol (); |
622 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 623 | static int parse_solitary_modifier (); |
dfcf069d AS |
624 | static void save_getcjmp (); |
625 | static void restore_getcjmp (); | |
7ee32cda | 626 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
284f4730 JB |
627 | |
628 | /* > 0 if we are to echo keystrokes. */ | |
629 | static int echo_keystrokes; | |
630 | ||
8026024c KH |
631 | /* Nonzero means don't try to suspend even if the operating system seems |
632 | to support it. */ | |
633 | static int cannot_suspend; | |
634 | ||
284f4730 JB |
635 | #define min(a,b) ((a)<(b)?(a):(b)) |
636 | #define max(a,b) ((a)>(b)?(a):(b)) | |
637 | ||
638 | /* Install the string STR as the beginning of the string of echoing, | |
639 | so that it serves as a prompt for the next character. | |
640 | Also start echoing. */ | |
641 | ||
dfcf069d | 642 | void |
284f4730 JB |
643 | echo_prompt (str) |
644 | char *str; | |
645 | { | |
646 | int len = strlen (str); | |
7a80a6f6 | 647 | |
ba72822c KH |
648 | if (len > ECHOBUFSIZE - 4) |
649 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
650 | bcopy (str, current_kboard->echobuf, len); |
651 | current_kboard->echoptr = current_kboard->echobuf + len; | |
652 | *current_kboard->echoptr = '\0'; | |
284f4730 | 653 | |
c5fdd383 | 654 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 655 | |
3dbd9ee4 | 656 | echo_now (); |
284f4730 JB |
657 | } |
658 | ||
df0f2ba1 | 659 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
660 | C can be a character, which is printed prettily ("M-C-x" and all that |
661 | jazz), or a symbol, whose name is printed. */ | |
662 | ||
dfcf069d | 663 | void |
284f4730 JB |
664 | echo_char (c) |
665 | Lisp_Object c; | |
666 | { | |
667 | extern char *push_key_description (); | |
668 | ||
c5fdd383 | 669 | if (current_kboard->immediate_echo) |
284f4730 | 670 | { |
c5fdd383 | 671 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 672 | |
c5fdd383 | 673 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
674 | *ptr++ = ' '; |
675 | ||
676 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 677 | c = EVENT_HEAD (c); |
284f4730 | 678 | |
8c18cbfb | 679 | if (INTEGERP (c)) |
284f4730 | 680 | { |
c5fdd383 | 681 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
682 | return; |
683 | ||
cb5df6ae | 684 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 685 | } |
8c18cbfb | 686 | else if (SYMBOLP (c)) |
284f4730 JB |
687 | { |
688 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 689 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 690 | > ECHOBUFSIZE) |
284f4730 | 691 | return; |
fc932ac6 RS |
692 | bcopy (name->data, ptr, STRING_BYTES (name)); |
693 | ptr += STRING_BYTES (name); | |
284f4730 JB |
694 | } |
695 | ||
c5fdd383 | 696 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 697 | && help_char_p (c)) |
284f4730 JB |
698 | { |
699 | strcpy (ptr, " (Type ? for further options)"); | |
700 | ptr += strlen (ptr); | |
701 | } | |
702 | ||
703 | *ptr = 0; | |
c5fdd383 | 704 | current_kboard->echoptr = ptr; |
284f4730 | 705 | |
3dbd9ee4 | 706 | echo_now (); |
284f4730 JB |
707 | } |
708 | } | |
709 | ||
710 | /* Temporarily add a dash to the end of the echo string if it's not | |
711 | empty, so that it serves as a mini-prompt for the very next character. */ | |
712 | ||
dfcf069d | 713 | void |
284f4730 JB |
714 | echo_dash () |
715 | { | |
c5fdd383 KH |
716 | if (!current_kboard->immediate_echo |
717 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 718 | return; |
7a80a6f6 | 719 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
720 | if (current_kboard->echo_after_prompt |
721 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 722 | return; |
4bafa972 | 723 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 724 | if (current_kboard->echoptr == 0) |
4bafa972 | 725 | return; |
284f4730 JB |
726 | |
727 | /* Put a dash at the end of the buffer temporarily, | |
728 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
729 | current_kboard->echoptr[0] = '-'; |
730 | current_kboard->echoptr[1] = 0; | |
284f4730 | 731 | |
3dbd9ee4 | 732 | echo_now (); |
284f4730 JB |
733 | } |
734 | ||
735 | /* Display the current echo string, and begin echoing if not already | |
736 | doing so. */ | |
737 | ||
07a59269 | 738 | void |
3dbd9ee4 | 739 | echo_now () |
284f4730 | 740 | { |
c5fdd383 | 741 | if (!current_kboard->immediate_echo) |
284f4730 JB |
742 | { |
743 | int i; | |
c5fdd383 | 744 | current_kboard->immediate_echo = 1; |
284f4730 JB |
745 | |
746 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
747 | { |
748 | Lisp_Object c; | |
749 | c = XVECTOR (this_command_keys)->contents[i]; | |
750 | if (! (EVENT_HAS_PARAMETERS (c) | |
751 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
752 | echo_char (c); | |
753 | } | |
284f4730 JB |
754 | echo_dash (); |
755 | } | |
756 | ||
757 | echoing = 1; | |
985f9f66 | 758 | echo_kboard = current_kboard; |
301738ed RS |
759 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
760 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 JB |
761 | echoing = 0; |
762 | ||
763 | if (waiting_for_input && !NILP (Vquit_flag)) | |
764 | quit_throw_to_read_char (); | |
765 | } | |
766 | ||
767 | /* Turn off echoing, for the start of a new command. */ | |
768 | ||
dfcf069d | 769 | void |
284f4730 JB |
770 | cancel_echoing () |
771 | { | |
c5fdd383 KH |
772 | current_kboard->immediate_echo = 0; |
773 | current_kboard->echoptr = current_kboard->echobuf; | |
774 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 775 | ok_to_echo_at_next_pause = 0; |
985f9f66 | 776 | echo_kboard = 0; |
284f4730 JB |
777 | } |
778 | ||
779 | /* Return the length of the current echo string. */ | |
780 | ||
781 | static int | |
782 | echo_length () | |
783 | { | |
c5fdd383 | 784 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
785 | } |
786 | ||
787 | /* Truncate the current echo message to its first LEN chars. | |
788 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 789 | switches frames while entering a key sequence. */ |
284f4730 JB |
790 | |
791 | static void | |
792 | echo_truncate (len) | |
793 | int len; | |
794 | { | |
c5fdd383 KH |
795 | current_kboard->echobuf[len] = '\0'; |
796 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 797 | truncate_echo_area (len); |
284f4730 JB |
798 | } |
799 | ||
800 | \f | |
801 | /* Functions for manipulating this_command_keys. */ | |
802 | static void | |
803 | add_command_key (key) | |
804 | Lisp_Object key; | |
805 | { | |
6569cc8d JB |
806 | int size = XVECTOR (this_command_keys)->size; |
807 | ||
71918b75 RS |
808 | /* If reset-this-command-length was called recently, obey it now. |
809 | See the doc string of that function for an explanation of why. */ | |
810 | if (before_command_restore_flag) | |
811 | { | |
812 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
813 | if (this_command_key_count < this_single_command_key_start) |
814 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
815 | echo_truncate (before_command_echo_length_1); |
816 | before_command_restore_flag = 0; | |
817 | } | |
818 | ||
6569cc8d | 819 | if (this_command_key_count >= size) |
284f4730 | 820 | { |
9b8eb840 | 821 | Lisp_Object new_keys; |
6569cc8d | 822 | |
9b8eb840 | 823 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
824 | bcopy (XVECTOR (this_command_keys)->contents, |
825 | XVECTOR (new_keys)->contents, | |
8f805655 | 826 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
827 | |
828 | this_command_keys = new_keys; | |
284f4730 | 829 | } |
6569cc8d JB |
830 | |
831 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
832 | } |
833 | \f | |
834 | Lisp_Object | |
835 | recursive_edit_1 () | |
836 | { | |
837 | int count = specpdl_ptr - specpdl; | |
838 | Lisp_Object val; | |
839 | ||
840 | if (command_loop_level > 0) | |
841 | { | |
842 | specbind (Qstandard_output, Qt); | |
843 | specbind (Qstandard_input, Qt); | |
844 | } | |
845 | ||
846 | val = command_loop (); | |
847 | if (EQ (val, Qt)) | |
848 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
849 | /* Handle throw from read_minibuf when using minibuffer |
850 | while it's active but we're in another window. */ | |
851 | if (STRINGP (val)) | |
852 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 853 | |
cb5df6ae | 854 | return unbind_to (count, Qnil); |
284f4730 JB |
855 | } |
856 | ||
857 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 858 | |
07a59269 | 859 | void |
284f4730 JB |
860 | record_auto_save () |
861 | { | |
c43b1734 | 862 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 863 | } |
5846638c RS |
864 | |
865 | /* Make an auto save happen as soon as possible at command level. */ | |
866 | ||
dfcf069d | 867 | void |
5846638c RS |
868 | force_auto_save_soon () |
869 | { | |
870 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
871 | |
872 | record_asynch_buffer_change (); | |
5846638c | 873 | } |
284f4730 | 874 | \f |
284f4730 JB |
875 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
876 | "Invoke the editor command loop recursively.\n\ | |
877 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
878 | that tells this function to return.\n\ | |
879 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
880 | This function is called by the editor initialization to begin editing.") | |
881 | () | |
882 | { | |
883 | int count = specpdl_ptr - specpdl; | |
284f4730 JB |
884 | |
885 | command_loop_level++; | |
886 | update_mode_lines = 1; | |
887 | ||
888 | record_unwind_protect (recursive_edit_unwind, | |
889 | (command_loop_level | |
890 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
891 | ? Fcurrent_buffer () | |
892 | : Qnil); | |
893 | recursive_edit_1 (); | |
894 | return unbind_to (count, Qnil); | |
895 | } | |
896 | ||
897 | Lisp_Object | |
898 | recursive_edit_unwind (buffer) | |
899 | Lisp_Object buffer; | |
900 | { | |
901 | if (!NILP (buffer)) | |
902 | Fset_buffer (buffer); | |
903 | ||
904 | command_loop_level--; | |
905 | update_mode_lines = 1; | |
906 | return Qnil; | |
907 | } | |
908 | \f | |
604ccd1d | 909 | static void |
1e8bd3da | 910 | any_kboard_state () |
604ccd1d | 911 | { |
1e8bd3da RS |
912 | #ifdef MULTI_KBOARD |
913 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
914 | it will right away be read by read_key_sequence, | |
915 | and then if we do switch KBOARDS, it will go into the side | |
916 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 917 | if (CONSP (Vunread_command_events)) |
4524b161 | 918 | { |
c5fdd383 KH |
919 | current_kboard->kbd_queue |
920 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
921 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 922 | } |
604ccd1d | 923 | Vunread_command_events = Qnil; |
1e8bd3da RS |
924 | #endif |
925 | single_kboard = 0; | |
926 | #endif | |
604ccd1d | 927 | } |
1e8bd3da RS |
928 | |
929 | /* Switch to the single-kboard state, making current_kboard | |
930 | the only KBOARD from which further input is accepted. */ | |
931 | ||
932 | void | |
933 | single_kboard_state () | |
934 | { | |
935 | #ifdef MULTI_KBOARD | |
936 | single_kboard = 1; | |
604ccd1d | 937 | #endif |
1e8bd3da RS |
938 | } |
939 | ||
940 | /* Maintain a stack of kboards, so other parts of Emacs | |
941 | can switch temporarily to the kboard of a given frame | |
942 | and then revert to the previous status. */ | |
943 | ||
944 | struct kboard_stack | |
945 | { | |
946 | KBOARD *kboard; | |
947 | struct kboard_stack *next; | |
948 | }; | |
949 | ||
950 | static struct kboard_stack *kboard_stack; | |
951 | ||
952 | void | |
953 | push_frame_kboard (f) | |
954 | FRAME_PTR f; | |
955 | { | |
ab48365b | 956 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
957 | struct kboard_stack *p |
958 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
959 | ||
960 | p->next = kboard_stack; | |
961 | p->kboard = current_kboard; | |
962 | kboard_stack = p; | |
963 | ||
964 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 965 | #endif |
1e8bd3da RS |
966 | } |
967 | ||
968 | void | |
969 | pop_frame_kboard () | |
970 | { | |
ab48365b | 971 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
972 | struct kboard_stack *p = kboard_stack; |
973 | current_kboard = p->kboard; | |
974 | kboard_stack = p->next; | |
975 | xfree (p); | |
ab48365b | 976 | #endif |
1e8bd3da RS |
977 | } |
978 | \f | |
979 | /* Handle errors that are not handled at inner levels | |
980 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 981 | |
284f4730 JB |
982 | Lisp_Object |
983 | cmd_error (data) | |
984 | Lisp_Object data; | |
a1341f75 | 985 | { |
a9f16aa9 | 986 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
987 | char macroerror[50]; |
988 | ||
989 | if (!NILP (executing_macro)) | |
990 | { | |
991 | if (executing_macro_iterations == 1) | |
992 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
993 | else | |
994 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
995 | executing_macro_iterations); | |
996 | } | |
997 | else | |
998 | *macroerror = 0; | |
a9f16aa9 | 999 | |
a1341f75 RS |
1000 | Vstandard_output = Qt; |
1001 | Vstandard_input = Qt; | |
1002 | Vexecuting_macro = Qnil; | |
9f58e89e | 1003 | executing_macro = Qnil; |
d8bcf58e | 1004 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1005 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1006 | cancel_echoing (); |
a9f16aa9 KH |
1007 | |
1008 | /* Avoid unquittable loop if data contains a circular list. */ | |
1009 | old_level = Vprint_level; | |
1010 | old_length = Vprint_length; | |
0c04a67e RS |
1011 | XSETFASTINT (Vprint_level, 10); |
1012 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1013 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1014 | Vprint_level = old_level; |
1015 | Vprint_length = old_length; | |
a1341f75 RS |
1016 | |
1017 | Vquit_flag = Qnil; | |
1018 | ||
1019 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1020 | #ifdef MULTI_KBOARD |
1e8bd3da | 1021 | any_kboard_state (); |
ff4b06d3 | 1022 | #endif |
a1341f75 RS |
1023 | |
1024 | return make_number (0); | |
1025 | } | |
1026 | ||
301738ed RS |
1027 | /* Take actions on handling an error. DATA is the data that describes |
1028 | the error. | |
1029 | ||
1030 | CONTEXT is a C-string containing ASCII characters only which | |
1031 | describes the context in which the error happened. If we need to | |
1032 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1033 | string. */ | |
1034 | ||
07a59269 | 1035 | void |
a1341f75 RS |
1036 | cmd_error_internal (data, context) |
1037 | Lisp_Object data; | |
1038 | char *context; | |
284f4730 | 1039 | { |
284f4730 | 1040 | Lisp_Object stream; |
7ee32cda | 1041 | int kill_emacs_p = 0; |
788f89eb | 1042 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1043 | |
1044 | Vquit_flag = Qnil; | |
1045 | Vinhibit_quit = Qt; | |
985f9f66 | 1046 | clear_message (1, 0); |
284f4730 | 1047 | |
ff11dfa1 | 1048 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1049 | yet, or we're not interactive, it's best to dump this message out |
1050 | to stderr and exit. */ | |
788f89eb | 1051 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1052 | /* This is the case of the frame dumped with Emacs, when we're |
1053 | running under a window system. */ | |
1054 | || (!NILP (Vwindow_system) | |
1055 | && !inhibit_window_system | |
788f89eb | 1056 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1057 | || noninteractive) |
7ee32cda GM |
1058 | { |
1059 | stream = Qexternal_debugging_output; | |
1060 | kill_emacs_p = 1; | |
1061 | } | |
284f4730 JB |
1062 | else |
1063 | { | |
1064 | Fdiscard_input (); | |
1065 | bitch_at_user (); | |
1066 | stream = Qt; | |
1067 | } | |
1068 | ||
a1341f75 RS |
1069 | if (context != 0) |
1070 | write_string_1 (context, -1, stream); | |
1071 | ||
22a51344 | 1072 | print_error_message (data, stream); |
284f4730 | 1073 | |
ff11dfa1 | 1074 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1075 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1076 | if (kill_emacs_p) |
284f4730 JB |
1077 | { |
1078 | Fterpri (stream); | |
1079 | Fkill_emacs (make_number (-1)); | |
1080 | } | |
284f4730 JB |
1081 | } |
1082 | \f | |
1083 | Lisp_Object command_loop_1 (); | |
1084 | Lisp_Object command_loop_2 (); | |
1085 | Lisp_Object top_level_1 (); | |
1086 | ||
1087 | /* Entry to editor-command-loop. | |
1088 | This level has the catches for exiting/returning to editor command loop. | |
1089 | It returns nil to exit recursive edit, t to abort it. */ | |
1090 | ||
1091 | Lisp_Object | |
1092 | command_loop () | |
1093 | { | |
1094 | if (command_loop_level > 0 || minibuf_level > 0) | |
1095 | { | |
07ba902e RS |
1096 | Lisp_Object val; |
1097 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1098 | executing_macro = Qnil; |
1099 | return val; | |
284f4730 JB |
1100 | } |
1101 | else | |
1102 | while (1) | |
1103 | { | |
1104 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1105 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1106 | executing_macro = Qnil; |
df0f2ba1 | 1107 | |
284f4730 JB |
1108 | /* End of file in -batch run causes exit here. */ |
1109 | if (noninteractive) | |
1110 | Fkill_emacs (Qt); | |
1111 | } | |
1112 | } | |
1113 | ||
1114 | /* Here we catch errors in execution of commands within the | |
1115 | editing loop, and reenter the editing loop. | |
1116 | When there is an error, cmd_error runs and returns a non-nil | |
1117 | value to us. A value of nil means that cmd_loop_1 itself | |
1118 | returned due to end of file (or end of kbd macro). */ | |
1119 | ||
1120 | Lisp_Object | |
1121 | command_loop_2 () | |
1122 | { | |
1123 | register Lisp_Object val; | |
1124 | ||
1125 | do | |
1126 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1127 | while (!NILP (val)); | |
1128 | ||
1129 | return Qnil; | |
1130 | } | |
1131 | ||
1132 | Lisp_Object | |
1133 | top_level_2 () | |
1134 | { | |
1135 | return Feval (Vtop_level); | |
1136 | } | |
1137 | ||
1138 | Lisp_Object | |
1139 | top_level_1 () | |
1140 | { | |
1141 | /* On entry to the outer level, run the startup file */ | |
1142 | if (!NILP (Vtop_level)) | |
1143 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1144 | else if (!NILP (Vpurify_flag)) | |
1145 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1146 | else | |
1147 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1148 | return Qnil; | |
1149 | } | |
1150 | ||
1151 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1152 | "Exit all recursive editing levels.") | |
1153 | () | |
1154 | { | |
1155 | Fthrow (Qtop_level, Qnil); | |
1156 | } | |
1157 | ||
1158 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1159 | "Exit from the innermost recursive edit or minibuffer.") | |
1160 | () | |
1161 | { | |
1162 | if (command_loop_level > 0 || minibuf_level > 0) | |
1163 | Fthrow (Qexit, Qnil); | |
1164 | ||
1165 | error ("No recursive edit is in progress"); | |
1166 | } | |
1167 | ||
1168 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1169 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1170 | () | |
1171 | { | |
1172 | if (command_loop_level > 0 || minibuf_level > 0) | |
1173 | Fthrow (Qexit, Qt); | |
1174 | ||
1175 | error ("No recursive edit is in progress"); | |
1176 | } | |
1177 | \f | |
1178 | /* This is the actual command reading loop, | |
1179 | sans error-handling encapsulation. */ | |
1180 | ||
1181 | Lisp_Object Fcommand_execute (); | |
1182 | static int read_key_sequence (); | |
68f297c5 | 1183 | void safe_run_hooks (); |
284f4730 JB |
1184 | |
1185 | Lisp_Object | |
1186 | command_loop_1 () | |
1187 | { | |
03cee6ae GM |
1188 | Lisp_Object cmd; |
1189 | int lose; | |
284f4730 JB |
1190 | int nonundocount; |
1191 | Lisp_Object keybuf[30]; | |
1192 | int i; | |
1193 | int no_redisplay; | |
1194 | int no_direct; | |
86e5706b RS |
1195 | int prev_modiff; |
1196 | struct buffer *prev_buffer; | |
c5fdd383 | 1197 | #ifdef MULTI_KBOARD |
1e8bd3da | 1198 | int was_locked = single_kboard; |
bded54dd | 1199 | #endif |
284f4730 | 1200 | |
d9b641bb | 1201 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1202 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1203 | Vdeactivate_mark = Qnil; |
284f4730 | 1204 | waiting_for_input = 0; |
df0f2ba1 | 1205 | cancel_echoing (); |
284f4730 | 1206 | |
284f4730 JB |
1207 | nonundocount = 0; |
1208 | no_redisplay = 0; | |
1209 | this_command_key_count = 0; | |
6321824f | 1210 | this_single_command_key_start = 0; |
284f4730 | 1211 | |
a612e298 RS |
1212 | /* Make sure this hook runs after commands that get errors and |
1213 | throw to top level. */ | |
a98ea3f9 RS |
1214 | /* Note that the value cell will never directly contain nil |
1215 | if the symbol is a local variable. */ | |
e98a93eb | 1216 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1217 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1218 | |
8f12e41d GM |
1219 | /* If displaying a message, resize the echo area window to fit |
1220 | that message's size exactly. */ | |
1221 | if (!NILP (echo_area_buffer[0])) | |
1222 | resize_echo_area_axactly (); | |
1223 | ||
8a792f3a RS |
1224 | if (!NILP (Vdeferred_action_list)) |
1225 | call0 (Vdeferred_action_function); | |
1226 | ||
e98a93eb | 1227 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1228 | { |
1229 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1230 | && NILP (Vunread_input_method_events) |
1231 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1232 | && NILP (Vexecuting_macro) |
41365083 | 1233 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1234 | safe_run_hooks (Qpost_command_idle_hook); |
1235 | } | |
1236 | ||
51d5a2c9 | 1237 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1238 | current_kboard->Vlast_command = Vthis_command; |
1239 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1240 | |
284f4730 JB |
1241 | while (1) |
1242 | { | |
788f89eb | 1243 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1244 | Fkill_emacs (Qnil); |
1245 | ||
284f4730 JB |
1246 | /* Make sure the current window's buffer is selected. */ |
1247 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1248 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1249 | ||
1250 | /* Display any malloc warning that just came out. Use while because | |
1251 | displaying one warning can cause another. */ | |
1252 | ||
1253 | while (pending_malloc_warning) | |
1254 | display_malloc_warning (); | |
1255 | ||
1256 | no_direct = 0; | |
1257 | ||
86e5706b RS |
1258 | Vdeactivate_mark = Qnil; |
1259 | ||
284f4730 | 1260 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1261 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1262 | |
7ee32cda | 1263 | if (minibuf_level |
985f9f66 | 1264 | && !NILP (echo_area_buffer[0]) |
93127526 | 1265 | && EQ (minibuf_window, echo_area_window)) |
284f4730 | 1266 | { |
f1bed6d8 RS |
1267 | /* Bind inhibit-quit to t so that C-g gets read in |
1268 | rather than quitting back to the minibuffer. */ | |
1269 | int count = specpdl_ptr - specpdl; | |
1270 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1271 | |
db08707d | 1272 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1273 | /* Clear the echo area. */ |
301738ed | 1274 | message2 (0, 0, 0); |
cdb9d665 | 1275 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1276 | |
db08707d RS |
1277 | unbind_to (count, Qnil); |
1278 | ||
e6aa7813 | 1279 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1280 | if (!NILP (Vquit_flag)) |
1281 | { | |
1282 | Vquit_flag = Qnil; | |
24597608 | 1283 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1284 | } |
1285 | } | |
1286 | ||
1287 | #ifdef C_ALLOCA | |
ff4b06d3 | 1288 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1289 | /* Since we can free the most stuff here. */ |
1290 | #endif /* C_ALLOCA */ | |
1291 | ||
8f805655 | 1292 | #if 0 |
8f805655 JB |
1293 | /* Select the frame that the last event came from. Usually, |
1294 | switch-frame events will take care of this, but if some lisp | |
1295 | code swallows a switch-frame event, we'll fix things up here. | |
1296 | Is this a good idea? */ | |
8c18cbfb | 1297 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1298 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1299 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1300 | #endif |
48e416d4 RS |
1301 | /* If it has changed current-menubar from previous value, |
1302 | really recompute the menubar from the value. */ | |
a646e520 RS |
1303 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1304 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1305 | call0 (Qrecompute_lucid_menubar); |
1306 | ||
71918b75 RS |
1307 | before_command_key_count = this_command_key_count; |
1308 | before_command_echo_length = echo_length (); | |
1309 | ||
d5eecefb RS |
1310 | Vthis_command = Qnil; |
1311 | real_this_command = Qnil; | |
d7437ef6 | 1312 | |
8f805655 | 1313 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1314 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1315 | Qnil, 0, 1, 1); |
8f805655 | 1316 | |
6fac1409 | 1317 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1318 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1319 | Fkill_emacs (Qnil); |
6fac1409 RS |
1320 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1321 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1322 | ||
8f805655 JB |
1323 | ++num_input_keys; |
1324 | ||
284f4730 JB |
1325 | /* Now we have read a key sequence of length I, |
1326 | or else I is 0 and we found end of file. */ | |
1327 | ||
1328 | if (i == 0) /* End of file -- happens only in */ | |
1329 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1330 | /* -1 means read_key_sequence got a menu that was rejected. |
1331 | Just loop around and read another command. */ | |
1332 | if (i == -1) | |
1333 | { | |
1334 | cancel_echoing (); | |
1335 | this_command_key_count = 0; | |
6321824f | 1336 | this_single_command_key_start = 0; |
ff4b06d3 | 1337 | goto finalize; |
dcc408a0 | 1338 | } |
284f4730 | 1339 | |
284f4730 JB |
1340 | last_command_char = keybuf[i - 1]; |
1341 | ||
75c0b143 RS |
1342 | /* If the previous command tried to force a specific window-start, |
1343 | forget about that, in case this command moves point far away | |
c422836d KH |
1344 | from that position. But also throw away beg_unchanged and |
1345 | end_unchanged information in that case, so that redisplay will | |
1346 | update the whole window properly. */ | |
1347 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1348 | { | |
9351ebd0 | 1349 | struct buffer *b; |
c422836d | 1350 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1351 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1352 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1353 | } |
75c0b143 | 1354 | |
284f4730 JB |
1355 | cmd = read_key_sequence_cmd; |
1356 | if (!NILP (Vexecuting_macro)) | |
1357 | { | |
1358 | if (!NILP (Vquit_flag)) | |
1359 | { | |
1360 | Vexecuting_macro = Qt; | |
1361 | QUIT; /* Make some noise. */ | |
1362 | /* Will return since macro now empty. */ | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1367 | cases identified below that set no_redisplay to 1. |
1368 | (actually, there's currently no way to prevent the redisplay, | |
1369 | and no_redisplay is ignored. | |
beecf6a1 | 1370 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1371 | no_redisplay = 0; |
1372 | ||
86e5706b RS |
1373 | prev_buffer = current_buffer; |
1374 | prev_modiff = MODIFF; | |
8746da95 | 1375 | last_point_position = PT; |
18cd2eeb | 1376 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1377 | |
284f4730 JB |
1378 | /* Execute the command. */ |
1379 | ||
d5eecefb RS |
1380 | Vthis_command = cmd; |
1381 | real_this_command = cmd; | |
a98ea3f9 RS |
1382 | /* Note that the value cell will never directly contain nil |
1383 | if the symbol is a local variable. */ | |
e98a93eb | 1384 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1385 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1386 | |
d5eecefb | 1387 | if (NILP (Vthis_command)) |
284f4730 JB |
1388 | { |
1389 | /* nil means key is undefined. */ | |
1390 | bitch_at_user (); | |
c5fdd383 | 1391 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1392 | update_mode_lines = 1; |
d8bcf58e | 1393 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1394 | } |
1395 | else | |
1396 | { | |
d8bcf58e | 1397 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1398 | { |
75045dcb RS |
1399 | /* In case we jump to directly_done. */ |
1400 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1401 | ||
284f4730 JB |
1402 | /* Recognize some common commands in common situations and |
1403 | do them directly. */ | |
d5eecefb | 1404 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1405 | { |
51ad8a68 | 1406 | struct Lisp_Char_Table *dp |
284f4730 | 1407 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1408 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1409 | SET_PT (PT + 1); |
0f7a8fee | 1410 | if ((dp |
82ba47d7 | 1411 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1412 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1413 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1414 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1415 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1416 | /* To extract the case of continuation on |
1417 | wide-column characters. */ | |
8458ede6 | 1418 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1419 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1420 | >= MODIFF) | |
598ba4c7 RS |
1421 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1422 | >= OVERLAY_MODIFF) | |
284f4730 | 1423 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1424 | == PT - 1) |
284f4730 JB |
1425 | && !windows_or_buffers_changed |
1426 | && EQ (current_buffer->selective_display, Qnil) | |
1427 | && !detect_input_pending () | |
962ae636 | 1428 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1429 | && NILP (Vexecuting_macro)) |
1430 | no_redisplay = direct_output_forward_char (1); | |
1431 | goto directly_done; | |
1432 | } | |
d5eecefb | 1433 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1434 | { |
51ad8a68 | 1435 | struct Lisp_Char_Table *dp |
284f4730 | 1436 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1437 | SET_PT (PT - 1); |
aaf35234 | 1438 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1439 | if ((dp |
ca873d73 | 1440 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1441 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1442 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1443 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1444 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1445 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1446 | >= MODIFF) | |
598ba4c7 RS |
1447 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1448 | >= OVERLAY_MODIFF) | |
284f4730 | 1449 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1450 | == PT + 1) |
284f4730 JB |
1451 | && !windows_or_buffers_changed |
1452 | && EQ (current_buffer->selective_display, Qnil) | |
1453 | && !detect_input_pending () | |
962ae636 | 1454 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1455 | && NILP (Vexecuting_macro)) |
1456 | no_redisplay = direct_output_forward_char (-1); | |
1457 | goto directly_done; | |
1458 | } | |
d5eecefb | 1459 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1460 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1461 | && INTEGERP (last_command_char)) |
284f4730 | 1462 | { |
89599794 | 1463 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1464 | int value; |
fc9cce4e RS |
1465 | if (NILP (Vexecuting_macro) |
1466 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1467 | { |
1468 | if (!nonundocount || nonundocount >= 20) | |
1469 | { | |
1470 | Fundo_boundary (); | |
1471 | nonundocount = 0; | |
1472 | } | |
1473 | nonundocount++; | |
1474 | } | |
7ee32cda | 1475 | |
fc9cce4e RS |
1476 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1477 | < MODIFF) | |
598ba4c7 RS |
1478 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1479 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1480 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1481 | != PT) | |
4c61f38e | 1482 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1483 | || windows_or_buffers_changed |
1484 | || !EQ (current_buffer->selective_display, Qnil) | |
1485 | || detect_input_pending () | |
962ae636 | 1486 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1487 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1488 | |
fc9cce4e | 1489 | value = internal_self_insert (c, 0); |
7ee32cda | 1490 | |
fc9cce4e RS |
1491 | if (value == 2) |
1492 | nonundocount = 0; | |
1493 | ||
7ee32cda GM |
1494 | /* VALUE == 1 when AFTER-CHANGE functions are |
1495 | installed which is the case most of the time | |
1496 | because FONT-LOCK installs one. */ | |
1497 | if (!lose && !value) | |
1498 | no_redisplay = direct_output_for_insert (c); | |
284f4730 JB |
1499 | goto directly_done; |
1500 | } | |
1501 | } | |
1502 | ||
1503 | /* Here for a command that isn't executed directly */ | |
1504 | ||
7ee32cda GM |
1505 | #ifdef HAVE_X_WINDOWS |
1506 | if (display_busy_cursor_p) | |
1507 | { | |
1508 | if (inhibit_busy_cursor != 2) | |
1509 | inhibit_busy_cursor = 0; | |
1510 | if (!inhibit_busy_cursor) | |
1511 | Fx_show_busy_cursor (); | |
1512 | } | |
1513 | #endif | |
1514 | ||
284f4730 | 1515 | nonundocount = 0; |
d8bcf58e | 1516 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1517 | Fundo_boundary (); |
d5eecefb | 1518 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
284f4730 | 1519 | } |
a764a753 | 1520 | directly_done: ; |
75045dcb | 1521 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1522 | |
84ee6048 RS |
1523 | /* Note that the value cell will never directly contain nil |
1524 | if the symbol is a local variable. */ | |
1525 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1526 | safe_run_hooks (Qpost_command_hook); | |
1527 | ||
8f12e41d GM |
1528 | /* If displaying a message, resize the echo area window to fit |
1529 | that message's size exactly. */ | |
1530 | if (!NILP (echo_area_buffer[0])) | |
1531 | resize_echo_area_axactly (); | |
1532 | ||
84ee6048 RS |
1533 | if (!NILP (Vdeferred_action_list)) |
1534 | safe_run_hooks (Qdeferred_action_function); | |
1535 | ||
1536 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1537 | { | |
1538 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1539 | && NILP (Vunread_input_method_events) |
1540 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1541 | && NILP (Vexecuting_macro) |
1542 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1543 | safe_run_hooks (Qpost_command_idle_hook); | |
1544 | } | |
1545 | ||
284f4730 | 1546 | /* If there is a prefix argument, |
6c7178b9 KH |
1547 | 1) We don't want Vlast_command to be ``universal-argument'' |
1548 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1549 | 2) we want to leave echoing on so that the prefix will be |
1550 | echoed as part of this key sequence, so don't call | |
1551 | cancel_echoing, and | |
1552 | 3) we want to leave this_command_key_count non-zero, so that | |
1553 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1554 | not echo it a second time. |
1555 | ||
1556 | If the command didn't actually create a prefix arg, | |
1557 | but is merely a frame event that is transparent to prefix args, | |
1558 | then the above doesn't apply. */ | |
1559 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1560 | { |
d5eecefb RS |
1561 | current_kboard->Vlast_command = Vthis_command; |
1562 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1563 | cancel_echoing (); |
1564 | this_command_key_count = 0; | |
6321824f | 1565 | this_single_command_key_start = 0; |
284f4730 | 1566 | } |
86e5706b | 1567 | |
88ce066e | 1568 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1569 | { |
1570 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1571 | { | |
1572 | current_buffer->mark_active = Qnil; | |
1573 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1574 | } | |
1575 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1576 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1577 | } | |
ff4b06d3 KH |
1578 | |
1579 | finalize: | |
1580 | /* Install chars successfully executed in kbd macro. */ | |
1581 | ||
d8bcf58e KH |
1582 | if (!NILP (current_kboard->defining_kbd_macro) |
1583 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1584 | finalize_kbd_macro_chars (); |
1585 | ||
c5fdd383 | 1586 | #ifdef MULTI_KBOARD |
604ccd1d | 1587 | if (!was_locked) |
1e8bd3da | 1588 | any_kboard_state (); |
ff4b06d3 | 1589 | #endif |
284f4730 JB |
1590 | } |
1591 | } | |
1c9784c9 | 1592 | |
0bc3db2b RS |
1593 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1594 | ||
1595 | static Lisp_Object | |
1596 | safe_run_hooks_1 (hook) | |
1597 | Lisp_Object hook; | |
1598 | { | |
1599 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1600 | } | |
1601 | ||
1602 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1603 | ||
1604 | static Lisp_Object | |
1605 | safe_run_hooks_error (data) | |
1606 | Lisp_Object data; | |
1607 | { | |
1608 | Fset (Vinhibit_quit, Qnil); | |
1609 | } | |
1610 | ||
1c9784c9 KH |
1611 | /* If we get an error while running the hook, cause the hook variable |
1612 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1613 | to mysteriously evaporate. */ | |
0bc3db2b | 1614 | |
68f297c5 | 1615 | void |
1c9784c9 | 1616 | safe_run_hooks (hook) |
a98ea3f9 | 1617 | Lisp_Object hook; |
1c9784c9 KH |
1618 | { |
1619 | int count = specpdl_ptr - specpdl; | |
0bc3db2b RS |
1620 | specbind (Qinhibit_quit, hook); |
1621 | ||
e702932d | 1622 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1623 | |
1624 | unbind_to (count, Qnil); | |
1625 | } | |
284f4730 JB |
1626 | \f |
1627 | /* Number of seconds between polling for input. */ | |
1628 | int polling_period; | |
1629 | ||
eb8c3be9 | 1630 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1631 | int poll_suppress_count; |
1632 | ||
36922b18 | 1633 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1634 | int polling_for_input; |
1635 | ||
36922b18 RS |
1636 | #ifdef POLL_FOR_INPUT |
1637 | ||
284f4730 JB |
1638 | /* Handle an alarm once each second and read pending input |
1639 | so as to handle a C-g if it comces in. */ | |
1640 | ||
1641 | SIGTYPE | |
91c049d4 RS |
1642 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1643 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1644 | { |
87dd9b9b RS |
1645 | /* This causes the call to start_polling at the end |
1646 | to do its job. It also arranges for a quit or error | |
1647 | from within read_avail_input to resume polling. */ | |
1648 | poll_suppress_count++; | |
9ac0d9e0 JB |
1649 | if (interrupt_input_blocked == 0 |
1650 | && !waiting_for_input) | |
1651 | read_avail_input (0); | |
87dd9b9b RS |
1652 | /* Turn on the SIGALRM handler and request another alarm. */ |
1653 | start_polling (); | |
284f4730 JB |
1654 | } |
1655 | ||
1656 | #endif | |
1657 | ||
1658 | /* Begin signals to poll for input, if they are appropriate. | |
1659 | This function is called unconditionally from various places. */ | |
1660 | ||
07a59269 | 1661 | void |
284f4730 JB |
1662 | start_polling () |
1663 | { | |
1664 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1665 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1666 | { |
1667 | poll_suppress_count--; | |
1668 | if (poll_suppress_count == 0) | |
1669 | { | |
1670 | signal (SIGALRM, input_poll_signal); | |
1671 | polling_for_input = 1; | |
1672 | alarm (polling_period); | |
1673 | } | |
1674 | } | |
1675 | #endif | |
1676 | } | |
1677 | ||
1d3195db RS |
1678 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1679 | ||
1680 | int | |
1681 | input_polling_used () | |
1682 | { | |
1683 | #ifdef POLL_FOR_INPUT | |
1684 | return read_socket_hook && !interrupt_input; | |
1685 | #else | |
1686 | return 0; | |
1687 | #endif | |
1688 | } | |
1689 | ||
284f4730 JB |
1690 | /* Turn off polling. */ |
1691 | ||
07a59269 | 1692 | void |
284f4730 JB |
1693 | stop_polling () |
1694 | { | |
1695 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1696 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1697 | { |
1698 | if (poll_suppress_count == 0) | |
1699 | { | |
1700 | polling_for_input = 0; | |
1701 | alarm (0); | |
1702 | } | |
1703 | poll_suppress_count++; | |
1704 | } | |
1705 | #endif | |
1706 | } | |
fe8aeef3 RS |
1707 | |
1708 | /* Set the value of poll_suppress_count to COUNT | |
1709 | and start or stop polling accordingly. */ | |
1710 | ||
1711 | void | |
1712 | set_poll_suppress_count (count) | |
1713 | int count; | |
1714 | { | |
1715 | #ifdef POLL_FOR_INPUT | |
1716 | if (count == 0 && poll_suppress_count != 0) | |
1717 | { | |
1718 | poll_suppress_count = 1; | |
1719 | start_polling (); | |
1720 | } | |
1721 | else if (count != 0 && poll_suppress_count == 0) | |
1722 | { | |
1723 | stop_polling (); | |
1724 | } | |
1725 | poll_suppress_count = count; | |
1726 | #endif | |
1727 | } | |
f4eef8b4 | 1728 | |
d0a57728 RS |
1729 | /* Bind polling_period to a value at least N. |
1730 | But don't decrease it. */ | |
1731 | ||
07a59269 | 1732 | void |
f4eef8b4 RS |
1733 | bind_polling_period (n) |
1734 | int n; | |
1735 | { | |
1736 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1737 | int new = polling_period; |
1738 | ||
1739 | if (n > new) | |
1740 | new = n; | |
1741 | ||
f4eef8b4 | 1742 | stop_polling (); |
d0a57728 RS |
1743 | specbind (Qpolling_period, make_number (new)); |
1744 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1745 | start_polling (); |
1746 | #endif | |
1747 | } | |
284f4730 | 1748 | \f |
6da3dd3a RS |
1749 | /* Apply the control modifier to CHARACTER. */ |
1750 | ||
faf5e407 JB |
1751 | int |
1752 | make_ctrl_char (c) | |
1753 | int c; | |
1754 | { | |
d205953b JB |
1755 | /* Save the upper bits here. */ |
1756 | int upper = c & ~0177; | |
1757 | ||
1758 | c &= 0177; | |
1759 | ||
1760 | /* Everything in the columns containing the upper-case letters | |
1761 | denotes a control character. */ | |
1762 | if (c >= 0100 && c < 0140) | |
1763 | { | |
1764 | int oc = c; | |
1765 | c &= ~0140; | |
1766 | /* Set the shift modifier for a control char | |
1767 | made from a shifted letter. But only for letters! */ | |
1768 | if (oc >= 'A' && oc <= 'Z') | |
1769 | c |= shift_modifier; | |
1770 | } | |
1771 | ||
1772 | /* The lower-case letters denote control characters too. */ | |
1773 | else if (c >= 'a' && c <= 'z') | |
1774 | c &= ~0140; | |
1775 | ||
1776 | /* Include the bits for control and shift | |
1777 | only if the basic ASCII code can't indicate them. */ | |
1778 | else if (c >= ' ') | |
1779 | c |= ctrl_modifier; | |
1780 | ||
1781 | /* Replace the high bits. */ | |
1782 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1783 | |
1784 | return c; | |
1785 | } | |
1786 | ||
1787 | ||
1788 | \f | |
284f4730 JB |
1789 | /* Input of single characters from keyboard */ |
1790 | ||
1791 | Lisp_Object print_help (); | |
1792 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1793 | static void record_char (); |
284f4730 | 1794 | |
c5fdd383 KH |
1795 | #ifdef MULTI_KBOARD |
1796 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1797 | #endif |
beecf6a1 | 1798 | |
284f4730 JB |
1799 | /* read a character from the keyboard; call the redisplay if needed */ |
1800 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1801 | -1 means do not do redisplay, but do do autosaving. | |
1802 | 1 means do both. */ | |
1803 | ||
7d6de002 RS |
1804 | /* The arguments MAPS and NMAPS are for menu prompting. |
1805 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1806 | ||
1807 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
1808 | the first event of a key sequence (or not reading a key sequence). |
1809 | If PREV_EVENT is t, that is a "magic" value that says | |
1810 | not to run input methods, but in other respects to act as if | |
1811 | not reading a key sequence. | |
7d6de002 | 1812 | |
83d68044 | 1813 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1814 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1815 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1816 | |
1817 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1818 | |
284f4730 | 1819 | Lisp_Object |
7d6de002 | 1820 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1821 | int commandflag; |
7d6de002 RS |
1822 | int nmaps; |
1823 | Lisp_Object *maps; | |
1824 | Lisp_Object prev_event; | |
1825 | int *used_mouse_menu; | |
284f4730 | 1826 | { |
7c3bc944 | 1827 | Lisp_Object c; |
284f4730 | 1828 | int count; |
410d4de9 | 1829 | jmp_buf local_getcjmp; |
284f4730 | 1830 | jmp_buf save_jump; |
a1341f75 | 1831 | int key_already_recorded = 0; |
017c7cb6 | 1832 | Lisp_Object tem, save; |
7ee32cda | 1833 | Lisp_Object previous_echo_area_message; |
e4fe371d | 1834 | Lisp_Object also_record; |
7d18f9ae | 1835 | int reread; |
d5eecefb | 1836 | struct gcpro gcpro1, gcpro2; |
7c3bc944 | 1837 | |
e4fe371d | 1838 | also_record = Qnil; |
284f4730 | 1839 | |
71918b75 RS |
1840 | before_command_key_count = this_command_key_count; |
1841 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1842 | c = Qnil; |
7ee32cda | 1843 | previous_echo_area_message = Qnil; |
71918b75 | 1844 | |
7ee32cda | 1845 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 1846 | |
7f07d5ca RS |
1847 | retry: |
1848 | ||
7d18f9ae RS |
1849 | reread = 0; |
1850 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 1851 | { |
7539e11f | 1852 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 1853 | Vunread_post_input_method_events |
7539e11f | 1854 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 1855 | |
2479e91e RS |
1856 | /* Undo what read_char_x_menu_prompt did when it unread |
1857 | additional keys returned by Fx_popup_menu. */ | |
1858 | if (CONSP (c) | |
7539e11f KR |
1859 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1860 | && NILP (XCDR (c))) | |
1861 | c = XCAR (c); | |
2479e91e | 1862 | |
7d18f9ae RS |
1863 | reread = 1; |
1864 | goto reread_first; | |
284f4730 JB |
1865 | } |
1866 | ||
86e5706b RS |
1867 | if (unread_command_char != -1) |
1868 | { | |
18cd2eeb | 1869 | XSETINT (c, unread_command_char); |
86e5706b RS |
1870 | unread_command_char = -1; |
1871 | ||
7d18f9ae RS |
1872 | reread = 1; |
1873 | goto reread_first; | |
1874 | } | |
1875 | ||
1876 | if (CONSP (Vunread_command_events)) | |
1877 | { | |
7539e11f KR |
1878 | c = XCAR (Vunread_command_events); |
1879 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
1880 | |
1881 | /* Undo what read_char_x_menu_prompt did when it unread | |
1882 | additional keys returned by Fx_popup_menu. */ | |
1883 | if (CONSP (c) | |
7539e11f KR |
1884 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1885 | && NILP (XCDR (c))) | |
1886 | c = XCAR (c); | |
7d18f9ae RS |
1887 | |
1888 | reread = 1; | |
1889 | goto reread_for_input_method; | |
1890 | } | |
1891 | ||
1892 | if (CONSP (Vunread_input_method_events)) | |
1893 | { | |
7539e11f KR |
1894 | c = XCAR (Vunread_input_method_events); |
1895 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
1896 | |
1897 | /* Undo what read_char_x_menu_prompt did when it unread | |
1898 | additional keys returned by Fx_popup_menu. */ | |
1899 | if (CONSP (c) | |
7539e11f KR |
1900 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
1901 | && NILP (XCDR (c))) | |
1902 | c = XCAR (c); | |
7d18f9ae RS |
1903 | reread = 1; |
1904 | goto reread_for_input_method; | |
86e5706b RS |
1905 | } |
1906 | ||
71918b75 RS |
1907 | /* If there is no function key translated before |
1908 | reset-this-command-lengths takes effect, forget about it. */ | |
1909 | before_command_restore_flag = 0; | |
1910 | ||
284f4730 JB |
1911 | if (!NILP (Vexecuting_macro)) |
1912 | { | |
fce33686 JB |
1913 | /* We set this to Qmacro; since that's not a frame, nobody will |
1914 | try to switch frames on us, and the selected window will | |
1915 | remain unchanged. | |
1916 | ||
1917 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1918 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1919 | real event came from. Normally, a switch-frame event selects |
1920 | internal_last_event_frame after each command is read, but | |
1921 | events read from a macro should never cause a new frame to be | |
1922 | selected. */ | |
4c52b668 | 1923 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 1924 | |
663258f2 JB |
1925 | /* Exit the macro if we are at the end. |
1926 | Also, some things replace the macro with t | |
1927 | to force an early exit. */ | |
1928 | if (EQ (Vexecuting_macro, Qt) | |
1929 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1930 | { |
18cd2eeb | 1931 | XSETINT (c, -1); |
7c3bc944 | 1932 | RETURN_UNGCPRO (c); |
284f4730 | 1933 | } |
df0f2ba1 | 1934 | |
284f4730 | 1935 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1936 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1937 | && (XINT (c) & 0x80)) |
bb9e9bed | 1938 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1939 | |
284f4730 JB |
1940 | executing_macro_index++; |
1941 | ||
1942 | goto from_macro; | |
1943 | } | |
1944 | ||
cd21b839 JB |
1945 | if (!NILP (unread_switch_frame)) |
1946 | { | |
1947 | c = unread_switch_frame; | |
1948 | unread_switch_frame = Qnil; | |
1949 | ||
1950 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 1951 | again, so we do not set `reread'. */ |
f4255cd1 | 1952 | goto reread_first; |
cd21b839 JB |
1953 | } |
1954 | ||
adc1d5c8 | 1955 | /* if redisplay was requested */ |
6e4e64a8 RS |
1956 | if (commandflag >= 0) |
1957 | { | |
adc1d5c8 RS |
1958 | /* If there is pending input, process any events which are not |
1959 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
1960 | if (input_pending |
1961 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 1962 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 1963 | |
adc1d5c8 RS |
1964 | /* Redisplay if no pending input. */ |
1965 | while (!input_pending) | |
1966 | { | |
1967 | redisplay (); | |
1968 | ||
1969 | if (!input_pending) | |
1970 | /* Normal case: no input arrived during redisplay. */ | |
1971 | break; | |
1972 | ||
1973 | /* Input arrived and pre-empted redisplay. | |
1974 | Process any events which are not user-visible. */ | |
1975 | swallow_events (0); | |
1976 | /* If that cleared input_pending, try again to redisplay. */ | |
1977 | } | |
6e4e64a8 | 1978 | } |
e9bf89a0 | 1979 | |
410d4de9 | 1980 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
985f9f66 GM |
1981 | if (/* There is a current message. */ |
1982 | !NILP (echo_area_buffer[0]) | |
1983 | /* And we're not echoing from this kboard. */ | |
1984 | && echo_kboard != current_kboard | |
1985 | /* And it's either not ok to echo (ok_to_echo == NULL), or the | |
1986 | last char echoed was from a different kboard. */ | |
1987 | && ok_to_echo_at_next_pause != echo_kboard) | |
7ee32cda | 1988 | cancel_echoing (); |
410d4de9 RS |
1989 | else |
1990 | /* If already echoing, continue. */ | |
1991 | echo_dash (); | |
284f4730 | 1992 | |
410d4de9 RS |
1993 | /* Try reading a character via menu prompting in the minibuf. |
1994 | Try this before the sit-for, because the sit-for | |
1995 | would do the wrong thing if we are supposed to do | |
1996 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1997 | after a mouse event so don't try a minibuf menu. */ | |
1998 | c = Qnil; | |
1999 | if (nmaps > 0 && INTERACTIVE | |
2000 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2001 | /* Don't bring up a menu if we already have another event. */ | |
2002 | && NILP (Vunread_command_events) | |
2003 | && unread_command_char < 0 | |
4ec4ed6a | 2004 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2005 | { |
2006 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2007 | if (! NILP (c)) | |
2008 | { | |
2009 | key_already_recorded = 1; | |
2010 | goto non_reread_1; | |
2011 | } | |
2012 | } | |
284f4730 | 2013 | |
410d4de9 RS |
2014 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2015 | We will do that below, temporarily for short sections of code, | |
2016 | when appropriate. local_getcjmp must be in effect | |
2017 | around any call to sit_for or kbd_buffer_get_event; | |
2018 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2019 | |
410d4de9 | 2020 | if (_setjmp (local_getcjmp)) |
284f4730 | 2021 | { |
18cd2eeb | 2022 | XSETINT (c, quit_char); |
788f89eb | 2023 | internal_last_event_frame = selected_frame; |
4c52b668 | 2024 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2025 | /* If we report the quit char as an event, |
2026 | don't do so more than once. */ | |
2027 | if (!NILP (Vinhibit_quit)) | |
2028 | Vquit_flag = Qnil; | |
284f4730 | 2029 | |
c5fdd383 | 2030 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2031 | { |
788f89eb | 2032 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2033 | if (kb != current_kboard) |
df0f2ba1 | 2034 | { |
c5fdd383 | 2035 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2036 | /* We shouldn't get here if we were in single-kboard mode! */ |
2037 | if (single_kboard) | |
df0f2ba1 KH |
2038 | abort (); |
2039 | while (CONSP (*tailp)) | |
7539e11f | 2040 | tailp = &XCDR (*tailp); |
df0f2ba1 KH |
2041 | if (!NILP (*tailp)) |
2042 | abort (); | |
2043 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2044 | kb->kbd_queue_has_data = 1; |
2045 | current_kboard = kb; | |
ef6661f7 RS |
2046 | /* This is going to exit from read_char |
2047 | so we had better get rid of this frame's stuff. */ | |
2048 | UNGCPRO; | |
c5fdd383 | 2049 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2050 | } |
2051 | } | |
2052 | #endif | |
284f4730 JB |
2053 | goto non_reread; |
2054 | } | |
2055 | ||
d9d4c147 KH |
2056 | timer_start_idle (); |
2057 | ||
284f4730 JB |
2058 | /* If in middle of key sequence and minibuffer not active, |
2059 | start echoing if enough time elapses. */ | |
410d4de9 | 2060 | |
7ee32cda GM |
2061 | if (minibuf_level == 0 |
2062 | && !current_kboard->immediate_echo | |
6c6083a9 | 2063 | && this_command_key_count > 0 |
27203ead | 2064 | && ! noninteractive |
284f4730 | 2065 | && echo_keystrokes > 0 |
985f9f66 GM |
2066 | && (/* No message. */ |
2067 | NILP (echo_area_buffer[0]) | |
2068 | /* Or empty message. */ | |
2069 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2070 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2071 | /* Or already echoing from same kboard. */ | |
2072 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2073 | /* Or not echoing before and echoing allowed. */ | |
2074 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2075 | { |
2076 | Lisp_Object tem0; | |
985f9f66 | 2077 | |
7d6de002 RS |
2078 | /* After a mouse event, start echoing right away. |
2079 | This is because we are probably about to display a menu, | |
2080 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2081 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2082 | echo_now (); |
7d6de002 RS |
2083 | else |
2084 | { | |
410d4de9 RS |
2085 | save_getcjmp (save_jump); |
2086 | restore_getcjmp (local_getcjmp); | |
41365083 | 2087 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 2088 | restore_getcjmp (save_jump); |
303b5b3f RS |
2089 | if (EQ (tem0, Qt) |
2090 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2091 | echo_now (); |
7d6de002 | 2092 | } |
284f4730 JB |
2093 | } |
2094 | ||
410d4de9 | 2095 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2096 | |
2097 | if (commandflag != 0 | |
2098 | && auto_save_interval > 0 | |
c43b1734 | 2099 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2100 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2101 | { |
284f4730 | 2102 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2103 | /* Hooks can actually change some buffers in auto save. */ |
2104 | redisplay (); | |
284f4730 JB |
2105 | } |
2106 | ||
8150596a | 2107 | /* Try reading using an X menu. |
24597608 RS |
2108 | This is never confused with reading using the minibuf |
2109 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2110 | does not pass on any keymaps. */ | |
410d4de9 | 2111 | |
24597608 | 2112 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2113 | && !NILP (prev_event) |
2114 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2115 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2116 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2117 | /* Don't bring up a menu if we already have another event. */ |
2118 | && NILP (Vunread_command_events) | |
b8556aee | 2119 | && unread_command_char < 0) |
8eb4d8ef RS |
2120 | { |
2121 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2122 | ||
2123 | /* Now that we have read an event, Emacs is not idle. */ | |
2124 | timer_stop_idle (); | |
2125 | ||
7c3bc944 | 2126 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2127 | } |
7d6de002 | 2128 | |
410d4de9 RS |
2129 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2130 | ||
26c1639e | 2131 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2132 | { |
2133 | int delay_level, buffer_size; | |
2134 | ||
410d4de9 RS |
2135 | /* Slow down auto saves logarithmically in size of current buffer, |
2136 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2137 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2138 | last_non_minibuf_size = Z - BEG; | |
2139 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2140 | delay_level = 0; | |
2141 | while (buffer_size > 64) | |
2142 | delay_level++, buffer_size -= buffer_size >> 2; | |
2143 | if (delay_level < 4) delay_level = 4; | |
2144 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2145 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2146 | ||
2147 | /* Auto save if enough time goes by without input. */ | |
2148 | if (commandflag != 0 | |
c43b1734 | 2149 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2150 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2151 | && XINT (Vauto_save_timeout) > 0) |
2152 | { | |
2153 | Lisp_Object tem0; | |
410d4de9 RS |
2154 | |
2155 | save_getcjmp (save_jump); | |
2156 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2157 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2158 | 0, 1, 1, 0); |
410d4de9 RS |
2159 | restore_getcjmp (save_jump); |
2160 | ||
303b5b3f RS |
2161 | if (EQ (tem0, Qt) |
2162 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2163 | { |
7d6de002 | 2164 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2165 | |
2166 | /* If we have auto-saved and there is still no input | |
2167 | available, garbage collect if there has been enough | |
2168 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2169 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2170 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2171 | Fgarbage_collect (); |
410d4de9 | 2172 | |
ef8fd672 | 2173 | redisplay (); |
7d6de002 RS |
2174 | } |
2175 | } | |
2176 | } | |
284f4730 | 2177 | |
303b5b3f RS |
2178 | /* If this has become non-nil here, it has been set by a timer |
2179 | or sentinel or filter. */ | |
2180 | if (CONSP (Vunread_command_events)) | |
2181 | { | |
7539e11f KR |
2182 | c = XCAR (Vunread_command_events); |
2183 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2184 | } |
2185 | ||
410d4de9 RS |
2186 | /* Read something from current KBOARD's side queue, if possible. */ |
2187 | ||
beecf6a1 | 2188 | if (NILP (c)) |
1e12dd87 | 2189 | { |
c5fdd383 | 2190 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2191 | { |
c5fdd383 | 2192 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2193 | abort (); |
7539e11f | 2194 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2195 | current_kboard->kbd_queue |
7539e11f | 2196 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2197 | if (NILP (current_kboard->kbd_queue)) |
2198 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2199 | input_pending = readable_events (0); |
4c52b668 KH |
2200 | if (EVENT_HAS_PARAMETERS (c) |
2201 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2202 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2203 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2204 | } |
1e8bd3da RS |
2205 | } |
2206 | ||
c5fdd383 | 2207 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2208 | /* If current_kboard's side queue is empty check the other kboards. |
2209 | If one of them has data that we have not yet seen here, | |
2210 | switch to it and process the data waiting for it. | |
2211 | ||
2212 | Note: if the events queued up for another kboard | |
2213 | have already been seen here, and therefore are not a complete command, | |
2214 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2215 | That's to avoid an infinite loop switching between kboards here. */ | |
2216 | if (NILP (c) && !single_kboard) | |
2217 | { | |
2218 | KBOARD *kb; | |
2219 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2220 | if (kb->kbd_queue_has_data) | |
2221 | { | |
2222 | current_kboard = kb; | |
ef6661f7 RS |
2223 | /* This is going to exit from read_char |
2224 | so we had better get rid of this frame's stuff. */ | |
2225 | UNGCPRO; | |
1e8bd3da RS |
2226 | longjmp (wrong_kboard_jmpbuf, 1); |
2227 | } | |
2228 | } | |
df0f2ba1 KH |
2229 | #endif |
2230 | ||
410d4de9 RS |
2231 | wrong_kboard: |
2232 | ||
2233 | stop_polling (); | |
2234 | ||
1e8bd3da RS |
2235 | /* Finally, we read from the main queue, |
2236 | and if that gives us something we can't use yet, we put it on the | |
2237 | appropriate side queue and try again. */ | |
410d4de9 | 2238 | |
1e8bd3da RS |
2239 | if (NILP (c)) |
2240 | { | |
2241 | KBOARD *kb; | |
2242 | ||
1e8bd3da | 2243 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2244 | save_getcjmp (save_jump); |
2245 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2246 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2247 | restore_getcjmp (save_jump); |
2248 | ||
c5fdd383 | 2249 | #ifdef MULTI_KBOARD |
410d4de9 | 2250 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2251 | { |
2252 | Lisp_Object *tailp = &kb->kbd_queue; | |
2253 | while (CONSP (*tailp)) | |
7539e11f | 2254 | tailp = &XCDR (*tailp); |
1e8bd3da RS |
2255 | if (!NILP (*tailp)) |
2256 | abort (); | |
2257 | *tailp = Fcons (c, Qnil); | |
2258 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2259 | c = Qnil; |
1e8bd3da RS |
2260 | if (single_kboard) |
2261 | goto wrong_kboard; | |
2262 | current_kboard = kb; | |
ef6661f7 RS |
2263 | /* This is going to exit from read_char |
2264 | so we had better get rid of this frame's stuff. */ | |
2265 | UNGCPRO; | |
1e8bd3da | 2266 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2267 | } |
1e8bd3da | 2268 | #endif |
beecf6a1 | 2269 | } |
1e8bd3da | 2270 | |
284f4730 | 2271 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2272 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2273 | Fkill_emacs (make_number (1)); |
2274 | ||
8c18cbfb | 2275 | if (INTEGERP (c)) |
80645119 JB |
2276 | { |
2277 | /* Add in any extra modifiers, where appropriate. */ | |
2278 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2279 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2280 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2281 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2282 | |
2283 | /* Transfer any other modifier bits directly from | |
2284 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2285 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2286 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2287 | } |
9fa4395d | 2288 | |
284f4730 JB |
2289 | non_reread: |
2290 | ||
2fb9049e | 2291 | timer_stop_idle (); |
d9d4c147 | 2292 | |
284f4730 JB |
2293 | start_polling (); |
2294 | ||
410d4de9 RS |
2295 | if (NILP (c)) |
2296 | { | |
2297 | if (commandflag >= 0 | |
4ec4ed6a | 2298 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2299 | redisplay (); |
2300 | ||
2301 | goto wrong_kboard; | |
2302 | } | |
2303 | ||
2304 | non_reread_1: | |
2305 | ||
dfd11da7 | 2306 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2307 | so don't show them to the user. |
2308 | Also, don't record a key if we already did. */ | |
2309 | if (BUFFERP (c) || key_already_recorded) | |
2310 | RETURN_UNGCPRO (c); | |
a1341f75 | 2311 | |
7f07d5ca RS |
2312 | /* Process special events within read_char |
2313 | and loop around to read another event. */ | |
017c7cb6 RS |
2314 | save = Vquit_flag; |
2315 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2316 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2317 | c, 0, 0), 1); | |
017c7cb6 | 2318 | Vquit_flag = save; |
7f07d5ca RS |
2319 | |
2320 | if (!NILP (tem)) | |
2321 | { | |
ba8dfba8 RS |
2322 | int was_locked = single_kboard; |
2323 | ||
7f07d5ca | 2324 | last_input_char = c; |
158f7532 | 2325 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2326 | |
2327 | /* Resume allowing input from any kboard, if that was true before. */ | |
2328 | if (!was_locked) | |
2329 | any_kboard_state (); | |
2330 | ||
7f07d5ca RS |
2331 | goto retry; |
2332 | } | |
2333 | ||
284f4730 | 2334 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2335 | if (INTEGERP (c)) |
284f4730 JB |
2336 | { |
2337 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2338 | if (XINT (c) == -1) |
7c3bc944 | 2339 | RETURN_UNGCPRO (c); |
284f4730 | 2340 | |
301738ed RS |
2341 | if ((STRINGP (Vkeyboard_translate_table) |
2342 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2343 | || (VECTORP (Vkeyboard_translate_table) | |
2344 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2345 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2346 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2347 | { |
2348 | Lisp_Object d; | |
2349 | d = Faref (Vkeyboard_translate_table, c); | |
2350 | /* nil in keyboard-translate-table means no translation. */ | |
2351 | if (!NILP (d)) | |
2352 | c = d; | |
2353 | } | |
284f4730 JB |
2354 | } |
2355 | ||
e4fe371d RS |
2356 | /* If this event is a mouse click in the menu bar, |
2357 | return just menu-bar for now. Modify the mouse click event | |
2358 | so we won't do this twice, then queue it up. */ | |
2359 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2360 | && CONSP (XCDR (c)) |
e4fe371d | 2361 | && CONSP (EVENT_START (c)) |
7539e11f | 2362 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2363 | { |
e4fe371d | 2364 | Lisp_Object posn; |
284f4730 | 2365 | |
e4fe371d RS |
2366 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2367 | /* Handle menu-bar events: | |
2368 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2369 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2370 | { |
2371 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2372 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2373 | |
e4fe371d RS |
2374 | also_record = c; |
2375 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2376 | c = posn; | |
284f4730 | 2377 | } |
284f4730 JB |
2378 | } |
2379 | ||
7d18f9ae RS |
2380 | /* Store these characters into recent_keys, the dribble file if any, |
2381 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2382 | record_char (c); |
2383 | if (! NILP (also_record)) | |
2384 | record_char (also_record); | |
51172b6d | 2385 | |
d5eecefb RS |
2386 | /* Wipe the echo area. |
2387 | But first, if we are about to use an input method, | |
2388 | save the echo area contents for it to refer to. */ | |
2389 | if (INTEGERP (c) | |
2390 | && ! NILP (Vinput_method_function) | |
2391 | && (unsigned) XINT (c) >= ' ' | |
2392 | && (unsigned) XINT (c) < 127) | |
7ee32cda GM |
2393 | { |
2394 | previous_echo_area_message = Fcurrent_message (); | |
2395 | Vinput_method_previous_message = previous_echo_area_message; | |
2396 | } | |
d5eecefb RS |
2397 | |
2398 | /* Now wipe the echo area. */ | |
985f9f66 | 2399 | if (!NILP (echo_area_buffer[0])) |
d5eecefb | 2400 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2401 | clear_message (1, 0); |
d5eecefb | 2402 | |
7d18f9ae | 2403 | reread_for_input_method: |
284f4730 | 2404 | from_macro: |
7d18f9ae | 2405 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2406 | if (INTEGERP (c) |
2407 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2408 | /* Don't run the input method within a key sequence, |
2409 | after the first event of the key sequence. */ | |
2410 | && NILP (prev_event) | |
d5eecefb RS |
2411 | && (unsigned) XINT (c) >= ' ' |
2412 | && (unsigned) XINT (c) < 127) | |
2413 | { | |
2414 | Lisp_Object keys; | |
6e5742a0 | 2415 | int key_count; |
d5eecefb | 2416 | struct gcpro gcpro1; |
b638f328 | 2417 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2418 | |
6e5742a0 RS |
2419 | /* Save the echo status. */ |
2420 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2421 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2422 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2423 | ||
2424 | if (before_command_restore_flag) | |
2425 | { | |
2426 | this_command_key_count = before_command_key_count_1; | |
2427 | if (this_command_key_count < this_single_command_key_start) | |
2428 | this_single_command_key_start = this_command_key_count; | |
2429 | echo_truncate (before_command_echo_length_1); | |
2430 | before_command_restore_flag = 0; | |
2431 | } | |
2432 | ||
2433 | /* Save the this_command_keys status. */ | |
2434 | key_count = this_command_key_count; | |
2435 | ||
2436 | if (key_count > 0) | |
2437 | keys = Fcopy_sequence (this_command_keys); | |
2438 | else | |
2439 | keys = Qnil; | |
d5eecefb | 2440 | GCPRO1 (keys); |
6e5742a0 RS |
2441 | |
2442 | /* Clear out this_command_keys. */ | |
2443 | this_command_key_count = 0; | |
2444 | ||
2445 | /* Now wipe the echo area. */ | |
985f9f66 | 2446 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2447 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2448 | clear_message (1, 0); |
6e5742a0 RS |
2449 | echo_truncate (0); |
2450 | ||
b638f328 RS |
2451 | /* If we are not reading a key sequence, |
2452 | never use the echo area. */ | |
2453 | if (maps == 0) | |
2454 | { | |
b638f328 RS |
2455 | specbind (Qinput_method_use_echo_area, Qt); |
2456 | } | |
2457 | ||
6e5742a0 | 2458 | /* Call the input method. */ |
d5eecefb | 2459 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2460 | |
2461 | tem = unbind_to (count, tem); | |
2462 | ||
6e5742a0 RS |
2463 | /* Restore the saved echoing state |
2464 | and this_command_keys state. */ | |
2465 | this_command_key_count = key_count; | |
2466 | if (key_count > 0) | |
2467 | this_command_keys = keys; | |
2468 | ||
2469 | cancel_echoing (); | |
2470 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2471 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2472 | if (saved_immediate_echo) | |
2473 | echo_now (); | |
2474 | ||
d5eecefb | 2475 | UNGCPRO; |
6e5742a0 | 2476 | |
d5eecefb RS |
2477 | /* The input method can return no events. */ |
2478 | if (! CONSP (tem)) | |
7d18f9ae | 2479 | { |
d5eecefb | 2480 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2481 | if (! NILP (previous_echo_area_message)) |
2482 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2483 | goto retry; |
7d18f9ae | 2484 | } |
d5eecefb | 2485 | /* It returned one event or more. */ |
7539e11f | 2486 | c = XCAR (tem); |
d5eecefb | 2487 | Vunread_post_input_method_events |
7539e11f | 2488 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2489 | } |
7c3bc944 | 2490 | |
7d18f9ae | 2491 | reread_first: |
284f4730 | 2492 | |
7ee32cda GM |
2493 | /* Display help if not echoing. */ |
2494 | if (CONSP (c) | |
2495 | && EQ (XCAR (c), Qhelp_echo)) | |
2496 | { | |
2497 | Lisp_Object msg = XCDR (XCDR (c)); | |
2498 | ||
2499 | if (!NILP (Vshow_help_function)) | |
2500 | call1 (Vshow_help_function, msg); | |
2501 | else if (!echoing && !MINI_WINDOW_P (XWINDOW (selected_window))) | |
2502 | { | |
2503 | if (STRINGP (msg)) | |
2504 | message3_nolog (msg, XSTRING (msg)->size, STRING_MULTIBYTE (msg)); | |
2505 | else | |
2506 | message (0); | |
2507 | } | |
2508 | ||
2509 | goto retry; | |
2510 | } | |
2511 | ||
7d18f9ae | 2512 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2513 | { |
7d18f9ae RS |
2514 | before_command_key_count = this_command_key_count; |
2515 | before_command_echo_length = echo_length (); | |
2516 | ||
2517 | /* Don't echo mouse motion events. */ | |
2518 | if (echo_keystrokes | |
2519 | && ! (EVENT_HAS_PARAMETERS (c) | |
2520 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2521 | { | |
2522 | echo_char (c); | |
2523 | if (! NILP (also_record)) | |
2524 | echo_char (also_record); | |
2525 | /* Once we reread a character, echoing can happen | |
2526 | the next time we pause to read a new one. */ | |
985f9f66 | 2527 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2528 | } |
2529 | ||
2530 | /* Record this character as part of the current key. */ | |
2531 | add_command_key (c); | |
e4fe371d | 2532 | if (! NILP (also_record)) |
7d18f9ae | 2533 | add_command_key (also_record); |
e4fe371d | 2534 | } |
b8556aee | 2535 | |
284f4730 | 2536 | last_input_char = c; |
c43b1734 | 2537 | num_input_events++; |
284f4730 JB |
2538 | |
2539 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2540 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2541 | { |
2542 | Lisp_Object tem0; | |
2543 | count = specpdl_ptr - specpdl; | |
2544 | ||
2545 | record_unwind_protect (Fset_window_configuration, | |
2546 | Fcurrent_window_configuration (Qnil)); | |
2547 | ||
2548 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2549 | if (STRINGP (tem0)) |
284f4730 JB |
2550 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2551 | ||
2552 | cancel_echoing (); | |
3cb81011 KH |
2553 | do |
2554 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2555 | while (BUFFERP (c)); |
ff11dfa1 | 2556 | /* Remove the help from the frame */ |
284f4730 | 2557 | unbind_to (count, Qnil); |
410d4de9 | 2558 | |
284f4730 JB |
2559 | redisplay (); |
2560 | if (EQ (c, make_number (040))) | |
2561 | { | |
2562 | cancel_echoing (); | |
3cb81011 KH |
2563 | do |
2564 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2565 | while (BUFFERP (c)); |
284f4730 JB |
2566 | } |
2567 | } | |
2568 | ||
7c3bc944 | 2569 | RETURN_UNGCPRO (c); |
284f4730 JB |
2570 | } |
2571 | ||
8eb4d8ef RS |
2572 | /* Record a key that came from a mouse menu. |
2573 | Record it for echoing, for this-command-keys, and so on. */ | |
2574 | ||
2575 | static void | |
2576 | record_menu_key (c) | |
2577 | Lisp_Object c; | |
2578 | { | |
2579 | /* Wipe the echo area. */ | |
985f9f66 | 2580 | clear_message (1, 0); |
8eb4d8ef RS |
2581 | |
2582 | record_char (c); | |
2583 | ||
2584 | before_command_key_count = this_command_key_count; | |
2585 | before_command_echo_length = echo_length (); | |
2586 | ||
2587 | /* Don't echo mouse motion events. */ | |
2588 | if (echo_keystrokes) | |
2589 | { | |
2590 | echo_char (c); | |
2591 | ||
2592 | /* Once we reread a character, echoing can happen | |
2593 | the next time we pause to read a new one. */ | |
2594 | ok_to_echo_at_next_pause = 0; | |
2595 | } | |
2596 | ||
2597 | /* Record this character as part of the current key. */ | |
2598 | add_command_key (c); | |
2599 | ||
2600 | /* Re-reading in the middle of a command */ | |
2601 | last_input_char = c; | |
c43b1734 | 2602 | num_input_events++; |
8eb4d8ef RS |
2603 | } |
2604 | ||
ecb7cb34 KH |
2605 | /* Return 1 if should recognize C as "the help character". */ |
2606 | ||
2607 | int | |
2608 | help_char_p (c) | |
2609 | Lisp_Object c; | |
2610 | { | |
2611 | Lisp_Object tail; | |
2612 | ||
2613 | if (EQ (c, Vhelp_char)) | |
2614 | return 1; | |
7539e11f KR |
2615 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
2616 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
2617 | return 1; |
2618 | return 0; | |
2619 | } | |
2620 | ||
e4fe371d RS |
2621 | /* Record the input event C in various ways. */ |
2622 | ||
2623 | static void | |
2624 | record_char (c) | |
2625 | Lisp_Object c; | |
2626 | { | |
2627 | total_keys++; | |
2628 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2629 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2630 | recent_keys_index = 0; | |
2631 | ||
2632 | /* Write c to the dribble file. If c is a lispy event, write | |
2633 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2634 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2635 | if (dribble) | |
2636 | { | |
2637 | if (INTEGERP (c)) | |
2638 | { | |
2639 | if (XUINT (c) < 0x100) | |
2640 | putc (XINT (c), dribble); | |
2641 | else | |
6de34814 | 2642 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2643 | } |
2644 | else | |
2645 | { | |
2646 | Lisp_Object dribblee; | |
2647 | ||
2648 | /* If it's a structured event, take the event header. */ | |
2649 | dribblee = EVENT_HEAD (c); | |
2650 | ||
2651 | if (SYMBOLP (dribblee)) | |
2652 | { | |
2653 | putc ('<', dribble); | |
2654 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 2655 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
2656 | dribble); |
2657 | putc ('>', dribble); | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | fflush (dribble); | |
2662 | } | |
2663 | ||
2664 | store_kbd_macro_char (c); | |
2665 | ||
c43b1734 | 2666 | num_nonmacro_input_events++; |
e4fe371d RS |
2667 | } |
2668 | ||
284f4730 JB |
2669 | Lisp_Object |
2670 | print_help (object) | |
2671 | Lisp_Object object; | |
2672 | { | |
622de3e9 | 2673 | struct buffer *old = current_buffer; |
284f4730 | 2674 | Fprinc (object, Qnil); |
622de3e9 KH |
2675 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2676 | call0 (intern ("help-mode")); | |
2677 | set_buffer_internal (old); | |
284f4730 JB |
2678 | return Qnil; |
2679 | } | |
2680 | ||
2681 | /* Copy out or in the info on where C-g should throw to. | |
2682 | This is used when running Lisp code from within get_char, | |
2683 | in case get_char is called recursively. | |
2684 | See read_process_output. */ | |
2685 | ||
dfcf069d | 2686 | static void |
284f4730 JB |
2687 | save_getcjmp (temp) |
2688 | jmp_buf temp; | |
2689 | { | |
2690 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2691 | } | |
2692 | ||
dfcf069d | 2693 | static void |
284f4730 JB |
2694 | restore_getcjmp (temp) |
2695 | jmp_buf temp; | |
2696 | { | |
2697 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2698 | } | |
284f4730 | 2699 | \f |
2eb6bfbe RM |
2700 | #ifdef HAVE_MOUSE |
2701 | ||
284f4730 JB |
2702 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2703 | of this function. */ | |
a9d77f1f | 2704 | |
284f4730 JB |
2705 | static Lisp_Object |
2706 | tracking_off (old_value) | |
2707 | Lisp_Object old_value; | |
2708 | { | |
71edead1 RS |
2709 | do_mouse_tracking = old_value; |
2710 | if (NILP (old_value)) | |
284f4730 | 2711 | { |
284f4730 JB |
2712 | /* Redisplay may have been preempted because there was input |
2713 | available, and it assumes it will be called again after the | |
2714 | input has been processed. If the only input available was | |
2715 | the sort that we have just disabled, then we need to call | |
2716 | redisplay. */ | |
d9d4c147 | 2717 | if (!readable_events (1)) |
284f4730 JB |
2718 | { |
2719 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2720 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2721 | } |
2722 | } | |
2723 | } | |
2724 | ||
2725 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2726 | "Evaluate BODY with mouse movement events enabled.\n\ |
2727 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2728 | you can read with `read-event'.\n\ | |
2729 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2730 | (args) |
2731 | Lisp_Object args; | |
2732 | { | |
2733 | int count = specpdl_ptr - specpdl; | |
2734 | Lisp_Object val; | |
2735 | ||
a9d77f1f | 2736 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2737 | |
f3253854 | 2738 | do_mouse_tracking = Qt; |
df0f2ba1 | 2739 | |
284f4730 JB |
2740 | val = Fprogn (args); |
2741 | return unbind_to (count, val); | |
2742 | } | |
2eb6bfbe | 2743 | |
f3253854 KH |
2744 | /* If mouse has moved on some frame, return one of those frames. |
2745 | Return 0 otherwise. */ | |
2746 | ||
2747 | static FRAME_PTR | |
2748 | some_mouse_moved () | |
2749 | { | |
2750 | Lisp_Object tail, frame; | |
2751 | ||
2752 | FOR_EACH_FRAME (tail, frame) | |
2753 | { | |
2754 | if (XFRAME (frame)->mouse_moved) | |
2755 | return XFRAME (frame); | |
2756 | } | |
2757 | ||
2758 | return 0; | |
2759 | } | |
2760 | ||
2eb6bfbe | 2761 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2762 | \f |
2763 | /* Low level keyboard/mouse input. | |
2764 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2765 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2766 | |
2767 | /* Return true iff there are any events in the queue that read-char | |
2768 | would return. If this returns false, a read-char would block. */ | |
2769 | static int | |
d9d4c147 KH |
2770 | readable_events (do_timers_now) |
2771 | int do_timers_now; | |
a612e298 | 2772 | { |
4ec4ed6a RS |
2773 | if (do_timers_now) |
2774 | timer_check (do_timers_now); | |
2775 | ||
beecf6a1 KH |
2776 | if (kbd_fetch_ptr != kbd_store_ptr) |
2777 | return 1; | |
2778 | #ifdef HAVE_MOUSE | |
f3253854 | 2779 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2780 | return 1; |
2781 | #endif | |
1e8bd3da | 2782 | if (single_kboard) |
4c52b668 | 2783 | { |
c5fdd383 | 2784 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2785 | return 1; |
2786 | } | |
2787 | else | |
2788 | { | |
c5fdd383 KH |
2789 | KBOARD *kb; |
2790 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2791 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2792 | return 1; |
2793 | } | |
beecf6a1 | 2794 | return 0; |
a612e298 RS |
2795 | } |
2796 | ||
2797 | /* Set this for debugging, to have a way to get out */ | |
2798 | int stop_character; | |
284f4730 | 2799 | |
c5fdd383 KH |
2800 | #ifdef MULTI_KBOARD |
2801 | static KBOARD * | |
2802 | event_to_kboard (event) | |
5798cf15 KH |
2803 | struct input_event *event; |
2804 | { | |
2805 | Lisp_Object frame; | |
2806 | frame = event->frame_or_window; | |
2807 | if (CONSP (frame)) | |
7539e11f | 2808 | frame = XCAR (frame); |
5798cf15 KH |
2809 | else if (WINDOWP (frame)) |
2810 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2811 | ||
2812 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2813 | For now, just ignore the problem. |
2814 | Also ignore dead frames here. */ | |
2815 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2816 | return 0; |
2817 | else | |
c5fdd383 | 2818 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2819 | } |
2820 | #endif | |
2821 | ||
284f4730 JB |
2822 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2823 | ||
2824 | void | |
2825 | kbd_buffer_store_event (event) | |
2826 | register struct input_event *event; | |
2827 | { | |
2828 | if (event->kind == no_event) | |
2829 | abort (); | |
2830 | ||
2831 | if (event->kind == ascii_keystroke) | |
2832 | { | |
e9bf89a0 | 2833 | register int c = event->code & 0377; |
284f4730 | 2834 | |
faf5e407 JB |
2835 | if (event->modifiers & ctrl_modifier) |
2836 | c = make_ctrl_char (c); | |
2837 | ||
9fd7d808 RS |
2838 | c |= (event->modifiers |
2839 | & (meta_modifier | alt_modifier | |
2840 | | hyper_modifier | super_modifier)); | |
2841 | ||
86e5706b | 2842 | if (c == quit_char) |
284f4730 | 2843 | { |
3e51c7b7 | 2844 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2845 | #ifdef MULTI_KBOARD |
2846 | KBOARD *kb; | |
5798cf15 KH |
2847 | struct input_event *sp; |
2848 | ||
1e8bd3da | 2849 | if (single_kboard |
c5fdd383 KH |
2850 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2851 | kb != current_kboard)) | |
5798cf15 | 2852 | { |
c5fdd383 | 2853 | kb->kbd_queue |
5798cf15 KH |
2854 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2855 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2856 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2857 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2858 | { | |
2859 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2860 | sp = kbd_buffer; | |
2861 | ||
c5fdd383 | 2862 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2863 | { |
2864 | sp->kind = no_event; | |
2865 | sp->frame_or_window = Qnil; | |
2866 | } | |
2867 | } | |
2868 | return; | |
2869 | } | |
2870 | #endif | |
3e51c7b7 | 2871 | |
284f4730 | 2872 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2873 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2874 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2875 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2876 | { |
9b8eb840 | 2877 | Lisp_Object focus; |
4bb994d1 | 2878 | |
9b8eb840 | 2879 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2880 | if (NILP (focus)) |
beecf6a1 | 2881 | focus = event->frame_or_window; |
4c52b668 KH |
2882 | internal_last_event_frame = focus; |
2883 | Vlast_event_frame = focus; | |
4bb994d1 | 2884 | } |
3e51c7b7 | 2885 | |
ffd56f97 | 2886 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2887 | interrupt_signal (); |
2888 | return; | |
2889 | } | |
2890 | ||
2891 | if (c && c == stop_character) | |
2892 | { | |
2893 | sys_suspend (); | |
2894 | return; | |
2895 | } | |
284f4730 | 2896 | } |
3fe8e9a2 RS |
2897 | /* Don't insert two buffer_switch_event's in a row. |
2898 | Just ignore the second one. */ | |
2899 | else if (event->kind == buffer_switch_event | |
2900 | && kbd_fetch_ptr != kbd_store_ptr | |
2901 | && kbd_store_ptr->kind == buffer_switch_event) | |
2902 | return; | |
284f4730 | 2903 | |
beecf6a1 KH |
2904 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2905 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2906 | |
2907 | /* Don't let the very last slot in the buffer become full, | |
2908 | since that would make the two pointers equal, | |
2909 | and that is indistinguishable from an empty buffer. | |
2910 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2911 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2912 | { |
7ee32cda | 2913 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 2914 | sp->kind = event->kind; |
27203ead RS |
2915 | if (event->kind == selection_request_event) |
2916 | { | |
2917 | /* We must not use the ordinary copying code for this case, | |
2918 | since `part' is an enum and copying it might not copy enough | |
2919 | in this case. */ | |
612b78ef | 2920 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2921 | } |
2922 | else | |
2923 | { | |
612b78ef KH |
2924 | sp->code = event->code; |
2925 | sp->part = event->part; | |
2926 | sp->frame_or_window = event->frame_or_window; | |
2927 | sp->modifiers = event->modifiers; | |
2928 | sp->x = event->x; | |
2929 | sp->y = event->y; | |
2930 | sp->timestamp = event->timestamp; | |
27203ead | 2931 | } |
beecf6a1 KH |
2932 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2933 | - kbd_buffer] | |
7b4aedb9 | 2934 | = event->frame_or_window); |
284f4730 | 2935 | |
beecf6a1 | 2936 | kbd_store_ptr++; |
284f4730 JB |
2937 | } |
2938 | } | |
a612e298 | 2939 | \f |
07de30b9 GV |
2940 | /* Discard any mouse events in the event buffer by setting them to |
2941 | no_event. */ | |
2942 | void | |
2943 | discard_mouse_events () | |
2944 | { | |
2945 | struct input_event *sp; | |
2946 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
2947 | { | |
2948 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2949 | sp = kbd_buffer; | |
2950 | ||
2951 | if (sp->kind == mouse_click | |
2952 | #ifdef WINDOWSNT | |
2953 | || sp->kind == w32_scroll_bar_click | |
2954 | #endif | |
2955 | || sp->kind == scroll_bar_click) | |
2956 | { | |
2957 | sp->kind = no_event; | |
2958 | } | |
2959 | } | |
2960 | } | |
2961 | \f | |
a612e298 RS |
2962 | /* Read one event from the event buffer, waiting if necessary. |
2963 | The value is a Lisp object representing the event. | |
2964 | The value is nil for an event that should be ignored, | |
2965 | or that was handled here. | |
2966 | We always read and discard one event. */ | |
284f4730 JB |
2967 | |
2968 | static Lisp_Object | |
83d68044 | 2969 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2970 | KBOARD **kbp; |
83d68044 | 2971 | int *used_mouse_menu; |
284f4730 JB |
2972 | { |
2973 | register int c; | |
2974 | Lisp_Object obj; | |
2975 | ||
2976 | if (noninteractive) | |
2977 | { | |
2978 | c = getchar (); | |
18cd2eeb | 2979 | XSETINT (obj, c); |
f5b56972 | 2980 | *kbp = current_kboard; |
284f4730 JB |
2981 | return obj; |
2982 | } | |
2983 | ||
2984 | /* Wait until there is input available. */ | |
2985 | for (;;) | |
2986 | { | |
beecf6a1 KH |
2987 | if (kbd_fetch_ptr != kbd_store_ptr) |
2988 | break; | |
2989 | #ifdef HAVE_MOUSE | |
f3253854 | 2990 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2991 | break; |
beecf6a1 | 2992 | #endif |
284f4730 JB |
2993 | |
2994 | /* If the quit flag is set, then read_char will return | |
2995 | quit_char, so that counts as "available input." */ | |
2996 | if (!NILP (Vquit_flag)) | |
2997 | quit_throw_to_read_char (); | |
2998 | ||
2999 | /* One way or another, wait until input is available; then, if | |
3000 | interrupt handlers have not read it, read it now. */ | |
3001 | ||
3002 | #ifdef OLDVMS | |
3003 | wait_for_kbd_input (); | |
3004 | #else | |
3005 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3006 | #ifdef SIGIO | |
3007 | gobble_input (0); | |
3008 | #endif /* SIGIO */ | |
beecf6a1 KH |
3009 | if (kbd_fetch_ptr != kbd_store_ptr) |
3010 | break; | |
3011 | #ifdef HAVE_MOUSE | |
f3253854 | 3012 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3013 | break; |
3014 | #endif | |
3015 | { | |
3016 | Lisp_Object minus_one; | |
f76475ad | 3017 | |
beecf6a1 | 3018 | XSETINT (minus_one, -1); |
d9d4c147 | 3019 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3020 | |
beecf6a1 KH |
3021 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3022 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3023 | read_avail_input (1); | |
3024 | } | |
284f4730 JB |
3025 | #endif /* not VMS */ |
3026 | } | |
3027 | ||
303b5b3f RS |
3028 | if (CONSP (Vunread_command_events)) |
3029 | { | |
3030 | Lisp_Object first; | |
7539e11f KR |
3031 | first = XCAR (Vunread_command_events); |
3032 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3033 | *kbp = current_kboard; |
3034 | return first; | |
3035 | } | |
3036 | ||
284f4730 JB |
3037 | /* At this point, we know that there is a readable event available |
3038 | somewhere. If the event queue is empty, then there must be a | |
3039 | mouse movement enabled and available. */ | |
beecf6a1 | 3040 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3041 | { |
cd21b839 | 3042 | struct input_event *event; |
3e51c7b7 | 3043 | |
beecf6a1 KH |
3044 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3045 | ? kbd_fetch_ptr | |
3046 | : kbd_buffer); | |
3e51c7b7 | 3047 | |
cd21b839 | 3048 | last_event_timestamp = event->timestamp; |
cd21b839 | 3049 | |
c5fdd383 KH |
3050 | #ifdef MULTI_KBOARD |
3051 | *kbp = event_to_kboard (event); | |
3052 | if (*kbp == 0) | |
3053 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3054 | #else |
c5fdd383 | 3055 | *kbp = &the_only_kboard; |
5798cf15 | 3056 | #endif |
beecf6a1 | 3057 | |
4bb994d1 JB |
3058 | obj = Qnil; |
3059 | ||
48e416d4 | 3060 | /* These two kinds of events get special handling |
a612e298 RS |
3061 | and don't actually appear to the command loop. |
3062 | We return nil for them. */ | |
48e416d4 RS |
3063 | if (event->kind == selection_request_event) |
3064 | { | |
598a9fa7 | 3065 | #ifdef HAVE_X11 |
1e8bd3da RS |
3066 | struct input_event copy; |
3067 | ||
4581e928 RS |
3068 | /* Remove it from the buffer before processing it, |
3069 | since otherwise swallow_events will see it | |
3070 | and process it again. */ | |
1e8bd3da | 3071 | copy = *event; |
beecf6a1 | 3072 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3073 | input_pending = readable_events (0); |
4581e928 | 3074 | x_handle_selection_request (©); |
598a9fa7 JB |
3075 | #else |
3076 | /* We're getting selection request events, but we don't have | |
3077 | a window system. */ | |
3078 | abort (); | |
3079 | #endif | |
48e416d4 RS |
3080 | } |
3081 | ||
1e12dd87 | 3082 | else if (event->kind == selection_clear_event) |
48e416d4 | 3083 | { |
598a9fa7 | 3084 | #ifdef HAVE_X11 |
e0301c07 RS |
3085 | struct input_event copy; |
3086 | ||
3087 | /* Remove it from the buffer before processing it. */ | |
3088 | copy = *event; | |
beecf6a1 | 3089 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3090 | input_pending = readable_events (0); |
90c2bb0c | 3091 | x_handle_selection_clear (©); |
598a9fa7 JB |
3092 | #else |
3093 | /* We're getting selection request events, but we don't have | |
3094 | a window system. */ | |
3095 | abort (); | |
3096 | #endif | |
48e416d4 | 3097 | } |
e98a93eb | 3098 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
3099 | else if (event->kind == delete_window_event) |
3100 | { | |
bbdc2092 RS |
3101 | /* Make an event (delete-frame (FRAME)). */ |
3102 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3103 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3104 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3105 | } |
3106 | else if (event->kind == iconify_event) | |
3107 | { | |
3108 | /* Make an event (iconify-frame (FRAME)). */ | |
3109 | obj = Fcons (event->frame_or_window, Qnil); | |
3110 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3111 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3112 | } |
3113 | else if (event->kind == deiconify_event) | |
3114 | { | |
3115 | /* Make an event (make-frame-visible (FRAME)). */ | |
3116 | obj = Fcons (event->frame_or_window, Qnil); | |
3117 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3118 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3119 | } |
3120 | #endif | |
a8015ab5 KH |
3121 | else if (event->kind == buffer_switch_event) |
3122 | { | |
3123 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3124 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3125 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3126 | } |
07de30b9 | 3127 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
3128 | else if (event->kind == menu_bar_activate_event) |
3129 | { | |
3130 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3131 | input_pending = readable_events (0); |
e649d076 RS |
3132 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3133 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3134 | } |
1161d367 GV |
3135 | #endif |
3136 | #ifdef WINDOWSNT | |
3137 | else if (event->kind == language_change_event) | |
3138 | { | |
3139 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3140 | obj = Fcons (event->modifiers, Qnil); | |
3141 | obj = Fcons (event->code, Qnil); | |
3142 | obj = Fcons (event->frame_or_window, obj); | |
3143 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3144 | kbd_fetch_ptr = event + 1; | |
3145 | } | |
099787c1 | 3146 | #endif |
a612e298 | 3147 | /* Just discard these, by returning nil. |
c5fdd383 | 3148 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3149 | when we need to randomly delete events from the queue. |
3150 | (They shouldn't otherwise be found in the buffer, | |
3151 | but on some machines it appears they do show up | |
c5fdd383 | 3152 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3153 | /* On Windows NT/9X, no_event is used to delete extraneous |
3154 | mouse events during a popup-menu call. */ | |
a612e298 | 3155 | else if (event->kind == no_event) |
beecf6a1 | 3156 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3157 | else if (event->kind == HELP_EVENT) |
3158 | { | |
3159 | /* The car of event->frame_or_window is a frame, | |
3160 | the cdr is the help to display. */ | |
3161 | obj = Fcons (Qhelp_echo, event->frame_or_window); | |
3162 | kbd_fetch_ptr = event + 1; | |
3163 | } | |
4bb994d1 JB |
3164 | /* If this event is on a different frame, return a switch-frame this |
3165 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
3166 | else |
3167 | { | |
9b8eb840 | 3168 | Lisp_Object frame; |
1e12dd87 | 3169 | Lisp_Object focus; |
7b4aedb9 | 3170 | |
9b8eb840 | 3171 | frame = event->frame_or_window; |
2470a66f | 3172 | if (CONSP (frame)) |
7539e11f | 3173 | frame = XCAR (frame); |
2470a66f | 3174 | else if (WINDOWP (frame)) |
1e12dd87 | 3175 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3176 | |
1e12dd87 RS |
3177 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3178 | if (! NILP (focus)) | |
3179 | frame = focus; | |
07d2b8de | 3180 | |
4c52b668 | 3181 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3182 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3183 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3184 | internal_last_event_frame = frame; |
4bb994d1 | 3185 | |
1e12dd87 RS |
3186 | /* If we didn't decide to make a switch-frame event, go ahead |
3187 | and build a real event from the queue entry. */ | |
cd21b839 | 3188 | |
1e12dd87 RS |
3189 | if (NILP (obj)) |
3190 | { | |
3191 | obj = make_lispy_event (event); | |
e98a93eb | 3192 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3193 | /* If this was a menu selection, then set the flag to inhibit |
3194 | writing to last_nonmenu_event. Don't do this if the event | |
3195 | we're returning is (menu-bar), though; that indicates the | |
3196 | beginning of the menu sequence, and we might as well leave | |
3197 | that as the `event with parameters' for this selection. */ | |
7ee32cda | 3198 | if ((event->kind == menu_bar_event |
9ea173e8 | 3199 | || event->kind == TOOL_BAR_EVENT) |
7539e11f KR |
3200 | && !(CONSP (obj) && EQ (XCAR (obj), Qmenu_bar)) |
3201 | && !(CONSP (obj) && EQ (XCAR (obj), Qtool_bar)) | |
83d68044 KH |
3202 | && used_mouse_menu) |
3203 | *used_mouse_menu = 1; | |
3204 | #endif | |
1e12dd87 RS |
3205 | |
3206 | /* Wipe out this event, to catch bugs. */ | |
3207 | event->kind = no_event; | |
beecf6a1 | 3208 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 3209 | |
beecf6a1 | 3210 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3211 | } |
4bb994d1 | 3212 | } |
284f4730 | 3213 | } |
2eb6bfbe | 3214 | #ifdef HAVE_MOUSE |
a612e298 | 3215 | /* Try generating a mouse motion event. */ |
f3253854 | 3216 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3217 | { |
f3253854 | 3218 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3219 | Lisp_Object bar_window; |
3c370943 | 3220 | enum scroll_bar_part part; |
e5d77022 JB |
3221 | Lisp_Object x, y; |
3222 | unsigned long time; | |
284f4730 | 3223 | |
c5fdd383 | 3224 | *kbp = current_kboard; |
e177ac3a RS |
3225 | /* Note that this uses F to determine which display to look at. |
3226 | If there is no valid info, it does not store anything | |
3227 | so x remains nil. */ | |
3228 | x = Qnil; | |
dd26ab75 | 3229 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3230 | |
3231 | obj = Qnil; | |
284f4730 | 3232 | |
4bb994d1 JB |
3233 | /* Decide if we should generate a switch-frame event. Don't |
3234 | generate switch-frame events for motion outside of all Emacs | |
3235 | frames. */ | |
e177ac3a | 3236 | if (!NILP (x) && f) |
cd21b839 | 3237 | { |
9b8eb840 | 3238 | Lisp_Object frame; |
4bb994d1 | 3239 | |
9b8eb840 | 3240 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3241 | if (NILP (frame)) |
18cd2eeb | 3242 | XSETFRAME (frame, f); |
4bb994d1 | 3243 | |
4c52b668 | 3244 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3245 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3246 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3247 | internal_last_event_frame = frame; |
cd21b839 | 3248 | } |
4bb994d1 | 3249 | |
df0f2ba1 | 3250 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3251 | return a mouse-motion event. */ |
e177ac3a | 3252 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3253 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3254 | } |
2eb6bfbe | 3255 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3256 | else |
3257 | /* We were promised by the above while loop that there was | |
3258 | something for us to read! */ | |
3259 | abort (); | |
3260 | ||
d9d4c147 | 3261 | input_pending = readable_events (0); |
284f4730 | 3262 | |
4c52b668 | 3263 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3264 | |
284f4730 JB |
3265 | return (obj); |
3266 | } | |
a612e298 RS |
3267 | \f |
3268 | /* Process any events that are not user-visible, | |
3269 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3270 | |
3271 | void | |
d9d4c147 KH |
3272 | swallow_events (do_display) |
3273 | int do_display; | |
3a3b9632 | 3274 | { |
87dd9b9b RS |
3275 | int old_timers_run; |
3276 | ||
beecf6a1 | 3277 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3278 | { |
3279 | struct input_event *event; | |
3280 | ||
beecf6a1 KH |
3281 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3282 | ? kbd_fetch_ptr | |
3283 | : kbd_buffer); | |
3a3b9632 RS |
3284 | |
3285 | last_event_timestamp = event->timestamp; | |
3286 | ||
3287 | /* These two kinds of events get special handling | |
3288 | and don't actually appear to the command loop. */ | |
3289 | if (event->kind == selection_request_event) | |
3290 | { | |
3291 | #ifdef HAVE_X11 | |
4581e928 | 3292 | struct input_event copy; |
e0301c07 RS |
3293 | |
3294 | /* Remove it from the buffer before processing it, | |
3295 | since otherwise swallow_events called recursively could see it | |
3296 | and process it again. */ | |
4581e928 | 3297 | copy = *event; |
beecf6a1 | 3298 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3299 | input_pending = readable_events (0); |
4581e928 | 3300 | x_handle_selection_request (©); |
3a3b9632 RS |
3301 | #else |
3302 | /* We're getting selection request events, but we don't have | |
3303 | a window system. */ | |
3304 | abort (); | |
3305 | #endif | |
3306 | } | |
3307 | ||
3308 | else if (event->kind == selection_clear_event) | |
3309 | { | |
3310 | #ifdef HAVE_X11 | |
e0301c07 RS |
3311 | struct input_event copy; |
3312 | ||
3313 | /* Remove it from the buffer before processing it, */ | |
3314 | copy = *event; | |
3315 | ||
beecf6a1 | 3316 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3317 | input_pending = readable_events (0); |
90c2bb0c | 3318 | x_handle_selection_clear (©); |
3a3b9632 RS |
3319 | #else |
3320 | /* We're getting selection request events, but we don't have | |
3321 | a window system. */ | |
3322 | abort (); | |
3323 | #endif | |
3324 | } | |
3325 | else | |
3326 | break; | |
3327 | } | |
3328 | ||
87dd9b9b | 3329 | old_timers_run = timers_run; |
d9d4c147 | 3330 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3331 | |
3332 | if (timers_run != old_timers_run && do_display) | |
3333 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3334 | } |
a612e298 | 3335 | \f |
d9d4c147 KH |
3336 | static EMACS_TIME timer_idleness_start_time; |
3337 | ||
3338 | /* Record the start of when Emacs is idle, | |
3339 | for the sake of running idle-time timers. */ | |
3340 | ||
07a59269 | 3341 | void |
d9d4c147 KH |
3342 | timer_start_idle () |
3343 | { | |
3344 | Lisp_Object timers; | |
3345 | ||
3346 | /* If we are already in the idle state, do nothing. */ | |
3347 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3348 | return; | |
3349 | ||
3350 | EMACS_GET_TIME (timer_idleness_start_time); | |
3351 | ||
3352 | /* Mark all idle-time timers as once again candidates for running. */ | |
7539e11f | 3353 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
3354 | { |
3355 | Lisp_Object timer; | |
3356 | ||
7539e11f | 3357 | timer = XCAR (timers); |
d9d4c147 KH |
3358 | |
3359 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3360 | continue; | |
3361 | XVECTOR (timer)->contents[0] = Qnil; | |
3362 | } | |
3363 | } | |
3364 | ||
3365 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3366 | ||
07a59269 | 3367 | void |
d9d4c147 KH |
3368 | timer_stop_idle () |
3369 | { | |
3370 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3371 | } | |
3372 | ||
e044e87c RS |
3373 | /* This is only for debugging. */ |
3374 | struct input_event last_timer_event; | |
3375 | ||
c04cbc3b RS |
3376 | /* Check whether a timer has fired. To prevent larger problems we simply |
3377 | disregard elements that are not proper timers. Do not make a circular | |
3378 | timer list for the time being. | |
3379 | ||
3380 | Returns the number of seconds to wait until the next timer fires. If a | |
3381 | timer is triggering now, return zero seconds. | |
3382 | If no timer is active, return -1 seconds. | |
3383 | ||
4ec4ed6a RS |
3384 | If a timer is ripe, we run it, with quitting turned off. |
3385 | ||
3386 | DO_IT_NOW is now ignored. It used to mean that we should | |
3387 | run the timer directly instead of queueing a timer-event. | |
3388 | Now we always run timers directly. */ | |
c04cbc3b RS |
3389 | |
3390 | EMACS_TIME | |
3391 | timer_check (do_it_now) | |
3392 | int do_it_now; | |
3393 | { | |
3394 | EMACS_TIME nexttime; | |
9291c072 RS |
3395 | EMACS_TIME now, idleness_now; |
3396 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3397 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3398 | |
c04cbc3b RS |
3399 | EMACS_SET_SECS (nexttime, -1); |
3400 | EMACS_SET_USECS (nexttime, -1); | |
3401 | ||
9291c072 | 3402 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3403 | timers = Vtimer_list; |
9291c072 RS |
3404 | /* Consider the idle timers only if Emacs is idle. */ |
3405 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3406 | idle_timers = Vtimer_idle_list; | |
3407 | else | |
3408 | idle_timers = Qnil; | |
3409 | chosen_timer = Qnil; | |
3410 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3411 | |
9291c072 | 3412 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3413 | { |
9291c072 RS |
3414 | EMACS_GET_TIME (now); |
3415 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3416 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3417 | } | |
c04cbc3b | 3418 | |
9291c072 RS |
3419 | while (CONSP (timers) || CONSP (idle_timers)) |
3420 | { | |
9291c072 RS |
3421 | Lisp_Object *vector; |
3422 | Lisp_Object timer, idle_timer; | |
3423 | EMACS_TIME timer_time, idle_timer_time; | |
3424 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3425 | ||
3426 | /* Skip past invalid timers and timers already handled. */ | |
3427 | if (!NILP (timers)) | |
c04cbc3b | 3428 | { |
7539e11f | 3429 | timer = XCAR (timers); |
9291c072 RS |
3430 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3431 | { | |
7539e11f | 3432 | timers = XCDR (timers); |
9291c072 RS |
3433 | continue; |
3434 | } | |
3435 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3436 | |
9291c072 RS |
3437 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3438 | || !INTEGERP (vector[3]) | |
3439 | || ! NILP (vector[0])) | |
3440 | { | |
7539e11f | 3441 | timers = XCDR (timers); |
9291c072 RS |
3442 | continue; |
3443 | } | |
3444 | } | |
3445 | if (!NILP (idle_timers)) | |
3446 | { | |
7539e11f | 3447 | timer = XCAR (idle_timers); |
d9d4c147 | 3448 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 3449 | { |
7539e11f | 3450 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3451 | continue; |
3452 | } | |
d9d4c147 KH |
3453 | vector = XVECTOR (timer)->contents; |
3454 | ||
3455 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3456 | || !INTEGERP (vector[3]) |
3457 | || ! NILP (vector[0])) | |
3458 | { | |
7539e11f | 3459 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3460 | continue; |
3461 | } | |
3462 | } | |
d9d4c147 | 3463 | |
9291c072 RS |
3464 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3465 | based on the next ordinary timer. | |
3466 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3467 | this timer becomes ripe (negative if it's already ripe). */ | |
3468 | if (!NILP (timers)) | |
3469 | { | |
7539e11f | 3470 | timer = XCAR (timers); |
9291c072 | 3471 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
3472 | EMACS_SET_SECS (timer_time, |
3473 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3474 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3475 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3476 | } | |
ba8dfba8 | 3477 | |
9291c072 RS |
3478 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3479 | based on the next idle timer. */ | |
3480 | if (!NILP (idle_timers)) | |
3481 | { | |
7539e11f | 3482 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
3483 | vector = XVECTOR (idle_timer)->contents; |
3484 | EMACS_SET_SECS (idle_timer_time, | |
3485 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3486 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3487 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3488 | } | |
ba8dfba8 | 3489 | |
9291c072 RS |
3490 | /* Decide which timer is the next timer, |
3491 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3492 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3493 | |
9291c072 RS |
3494 | if (! NILP (timers) && ! NILP (idle_timers)) |
3495 | { | |
3496 | EMACS_TIME temp; | |
3497 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3498 | if (EMACS_TIME_NEG_P (temp)) | |
3499 | { | |
3500 | chosen_timer = timer; | |
7539e11f | 3501 | timers = XCDR (timers); |
9291c072 | 3502 | difference = timer_difference; |
c04cbc3b | 3503 | } |
d9d4c147 | 3504 | else |
d9d4c147 | 3505 | { |
9291c072 | 3506 | chosen_timer = idle_timer; |
7539e11f | 3507 | idle_timers = XCDR (idle_timers); |
9291c072 | 3508 | difference = idle_timer_difference; |
d9d4c147 | 3509 | } |
7ea13e12 | 3510 | } |
9291c072 RS |
3511 | else if (! NILP (timers)) |
3512 | { | |
3513 | chosen_timer = timer; | |
7539e11f | 3514 | timers = XCDR (timers); |
9291c072 RS |
3515 | difference = timer_difference; |
3516 | } | |
3517 | else | |
3518 | { | |
3519 | chosen_timer = idle_timer; | |
7539e11f | 3520 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
3521 | difference = idle_timer_difference; |
3522 | } | |
3523 | vector = XVECTOR (chosen_timer)->contents; | |
3524 | ||
3525 | /* If timer is rupe, run it if it hasn't been run. */ | |
3526 | if (EMACS_TIME_NEG_P (difference) | |
3527 | || (EMACS_SECS (difference) == 0 | |
3528 | && EMACS_USECS (difference) == 0)) | |
3529 | { | |
3530 | if (NILP (vector[0])) | |
3531 | { | |
d925fb39 RS |
3532 | int was_locked = single_kboard; |
3533 | int count = specpdl_ptr - specpdl; | |
7ee32cda GM |
3534 | #ifdef HAVE_WINDOW_SYSTEM |
3535 | int old_inhibit_busy_cursor = inhibit_busy_cursor; | |
3536 | #endif | |
d925fb39 | 3537 | |
9291c072 RS |
3538 | /* Mark the timer as triggered to prevent problems if the lisp |
3539 | code fails to reschedule it right. */ | |
3540 | vector[0] = Qt; | |
3541 | ||
d925fb39 | 3542 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3543 | |
7ee32cda GM |
3544 | #ifdef HAVE_WINDOW_SYSTEM |
3545 | inhibit_busy_cursor = 2; | |
3546 | #endif | |
3547 | ||
d925fb39 RS |
3548 | call1 (Qtimer_event_handler, chosen_timer); |
3549 | timers_run++; | |
9291c072 | 3550 | |
7ee32cda GM |
3551 | #ifdef HAVE_WINDOW_SYSTEM |
3552 | inhibit_busy_cursor = old_inhibit_busy_cursor; | |
3553 | #endif | |
3554 | ||
d925fb39 | 3555 | unbind_to (count, Qnil); |
4ec4ed6a | 3556 | |
d925fb39 RS |
3557 | /* Resume allowing input from any kboard, if that was true before. */ |
3558 | if (!was_locked) | |
3559 | any_kboard_state (); | |
9291c072 | 3560 | |
d925fb39 RS |
3561 | /* Since we have handled the event, |
3562 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3563 | } |
3564 | } | |
3565 | else | |
3566 | /* When we encounter a timer that is still waiting, | |
3567 | return the amount of time to wait before it is ripe. */ | |
3568 | { | |
3569 | UNGCPRO; | |
9291c072 RS |
3570 | return difference; |
3571 | } | |
c04cbc3b | 3572 | } |
9291c072 | 3573 | |
7ea13e12 RS |
3574 | /* No timers are pending in the future. */ |
3575 | /* Return 0 if we generated an event, and -1 if not. */ | |
3576 | UNGCPRO; | |
c04cbc3b RS |
3577 | return nexttime; |
3578 | } | |
3579 | \f | |
284f4730 | 3580 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3581 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3582 | static Lisp_Object func_key_syms; |
3583 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3584 | #ifdef WINDOWSNT |
3585 | static Lisp_Object mouse_wheel_syms; | |
3586 | #endif | |
a24dc617 | 3587 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 3588 | |
e9bf89a0 RS |
3589 | /* This is a list of keysym codes for special "accent" characters. |
3590 | It parallels lispy_accent_keys. */ | |
3591 | ||
3592 | static int lispy_accent_codes[] = | |
3593 | { | |
79a7046c | 3594 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3595 | XK_dead_circumflex, |
79a7046c RS |
3596 | #else |
3597 | 0, | |
3598 | #endif | |
3599 | #ifdef XK_dead_grave | |
e9bf89a0 | 3600 | XK_dead_grave, |
79a7046c RS |
3601 | #else |
3602 | 0, | |
3603 | #endif | |
3604 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3605 | XK_dead_tilde, |
79a7046c RS |
3606 | #else |
3607 | 0, | |
3608 | #endif | |
3609 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3610 | XK_dead_diaeresis, |
79a7046c RS |
3611 | #else |
3612 | 0, | |
3613 | #endif | |
3614 | #ifdef XK_dead_macron | |
e9bf89a0 | 3615 | XK_dead_macron, |
79a7046c RS |
3616 | #else |
3617 | 0, | |
3618 | #endif | |
3619 | #ifdef XK_dead_degree | |
e9bf89a0 | 3620 | XK_dead_degree, |
79a7046c RS |
3621 | #else |
3622 | 0, | |
3623 | #endif | |
3624 | #ifdef XK_dead_acute | |
e9bf89a0 | 3625 | XK_dead_acute, |
79a7046c RS |
3626 | #else |
3627 | 0, | |
3628 | #endif | |
3629 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3630 | XK_dead_cedilla, |
79a7046c RS |
3631 | #else |
3632 | 0, | |
3633 | #endif | |
3634 | #ifdef XK_dead_breve | |
e9bf89a0 | 3635 | XK_dead_breve, |
79a7046c RS |
3636 | #else |
3637 | 0, | |
3638 | #endif | |
3639 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3640 | XK_dead_ogonek, |
79a7046c RS |
3641 | #else |
3642 | 0, | |
3643 | #endif | |
3644 | #ifdef XK_dead_caron | |
e9bf89a0 | 3645 | XK_dead_caron, |
79a7046c RS |
3646 | #else |
3647 | 0, | |
3648 | #endif | |
3649 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3650 | XK_dead_doubleacute, |
79a7046c RS |
3651 | #else |
3652 | 0, | |
3653 | #endif | |
3654 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3655 | XK_dead_abovedot, |
79a7046c RS |
3656 | #else |
3657 | 0, | |
3658 | #endif | |
e9bf89a0 RS |
3659 | }; |
3660 | ||
3661 | /* This is a list of Lisp names for special "accent" characters. | |
3662 | It parallels lispy_accent_codes. */ | |
3663 | ||
3664 | static char *lispy_accent_keys[] = | |
3665 | { | |
3666 | "dead-circumflex", | |
3667 | "dead-grave", | |
3668 | "dead-tilde", | |
3669 | "dead-diaeresis", | |
3670 | "dead-macron", | |
3671 | "dead-degree", | |
3672 | "dead-acute", | |
3673 | "dead-cedilla", | |
3674 | "dead-breve", | |
3675 | "dead-ogonek", | |
3676 | "dead-caron", | |
3677 | "dead-doubleacute", | |
3678 | "dead-abovedot", | |
3679 | }; | |
3680 | ||
e98a93eb GV |
3681 | #ifdef HAVE_NTGUI |
3682 | #define FUNCTION_KEY_OFFSET 0x0 | |
3683 | ||
3684 | char *lispy_function_keys[] = | |
3685 | { | |
3686 | 0, /* 0 */ | |
3687 | ||
3688 | 0, /* VK_LBUTTON 0x01 */ | |
3689 | 0, /* VK_RBUTTON 0x02 */ | |
3690 | "cancel", /* VK_CANCEL 0x03 */ | |
3691 | 0, /* VK_MBUTTON 0x04 */ | |
3692 | ||
3693 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3694 | ||
3695 | "backspace", /* VK_BACK 0x08 */ | |
3696 | "tab", /* VK_TAB 0x09 */ | |
3697 | ||
3698 | 0, 0, /* 0x0A .. 0x0B */ | |
3699 | ||
3700 | "clear", /* VK_CLEAR 0x0C */ | |
3701 | "return", /* VK_RETURN 0x0D */ | |
3702 | ||
3703 | 0, 0, /* 0x0E .. 0x0F */ | |
3704 | ||
1161d367 GV |
3705 | 0, /* VK_SHIFT 0x10 */ |
3706 | 0, /* VK_CONTROL 0x11 */ | |
3707 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 3708 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 3709 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
3710 | |
3711 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3712 | ||
1161d367 | 3713 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
3714 | |
3715 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3716 | ||
3717 | 0, /* VK_SPACE 0x20 */ | |
3718 | "prior", /* VK_PRIOR 0x21 */ | |
3719 | "next", /* VK_NEXT 0x22 */ | |
3720 | "end", /* VK_END 0x23 */ | |
3721 | "home", /* VK_HOME 0x24 */ | |
3722 | "left", /* VK_LEFT 0x25 */ | |
3723 | "up", /* VK_UP 0x26 */ | |
3724 | "right", /* VK_RIGHT 0x27 */ | |
3725 | "down", /* VK_DOWN 0x28 */ | |
3726 | "select", /* VK_SELECT 0x29 */ | |
3727 | "print", /* VK_PRINT 0x2A */ | |
3728 | "execute", /* VK_EXECUTE 0x2B */ | |
3729 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3730 | "insert", /* VK_INSERT 0x2D */ | |
3731 | "delete", /* VK_DELETE 0x2E */ | |
3732 | "help", /* VK_HELP 0x2F */ | |
3733 | ||
3734 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3735 | ||
3736 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3737 | ||
3738 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3739 | ||
3740 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3741 | ||
3742 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3743 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3744 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3745 | ||
e376f90d RS |
3746 | "lwindow", /* VK_LWIN 0x5B */ |
3747 | "rwindow", /* VK_RWIN 0x5C */ | |
3748 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3749 | |
3750 | 0, 0, /* 0x5E .. 0x5F */ | |
3751 | ||
3752 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3753 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3754 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3755 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3756 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3757 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3758 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3759 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3760 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3761 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3762 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3763 | "kp-add", /* VK_ADD 0x6B */ | |
3764 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3765 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3766 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3767 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3768 | "f1", /* VK_F1 0x70 */ | |
3769 | "f2", /* VK_F2 0x71 */ | |
3770 | "f3", /* VK_F3 0x72 */ | |
3771 | "f4", /* VK_F4 0x73 */ | |
3772 | "f5", /* VK_F5 0x74 */ | |
3773 | "f6", /* VK_F6 0x75 */ | |
3774 | "f7", /* VK_F7 0x76 */ | |
3775 | "f8", /* VK_F8 0x77 */ | |
3776 | "f9", /* VK_F9 0x78 */ | |
3777 | "f10", /* VK_F10 0x79 */ | |
3778 | "f11", /* VK_F11 0x7A */ | |
3779 | "f12", /* VK_F12 0x7B */ | |
3780 | "f13", /* VK_F13 0x7C */ | |
3781 | "f14", /* VK_F14 0x7D */ | |
3782 | "f15", /* VK_F15 0x7E */ | |
3783 | "f16", /* VK_F16 0x7F */ | |
3784 | "f17", /* VK_F17 0x80 */ | |
3785 | "f18", /* VK_F18 0x81 */ | |
3786 | "f19", /* VK_F19 0x82 */ | |
3787 | "f20", /* VK_F20 0x83 */ | |
3788 | "f21", /* VK_F21 0x84 */ | |
3789 | "f22", /* VK_F22 0x85 */ | |
3790 | "f23", /* VK_F23 0x86 */ | |
3791 | "f24", /* VK_F24 0x87 */ | |
3792 | ||
3793 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3794 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3795 | ||
3796 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3797 | "scroll", /* VK_SCROLL 0x91 */ | |
3798 | ||
e376f90d RS |
3799 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3800 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3801 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3802 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3803 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3804 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3805 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3806 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3807 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3808 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3809 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3810 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3811 | ||
3812 | 0, 0, /* 0x9E .. 0x9F */ | |
3813 | ||
e98a93eb GV |
3814 | /* |
3815 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 3816 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
3817 | * No other API or message will distinguish left and right keys this way. |
3818 | */ | |
3819 | /* 0xA0 .. 0xEF */ | |
3820 | ||
3821 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3822 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3823 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3824 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3825 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3826 | ||
3827 | /* 0xF0 .. 0xF5 */ | |
3828 | ||
3829 | 0, 0, 0, 0, 0, 0, | |
3830 | ||
3831 | "attn", /* VK_ATTN 0xF6 */ | |
3832 | "crsel", /* VK_CRSEL 0xF7 */ | |
3833 | "exsel", /* VK_EXSEL 0xF8 */ | |
3834 | "ereof", /* VK_EREOF 0xF9 */ | |
3835 | "play", /* VK_PLAY 0xFA */ | |
3836 | "zoom", /* VK_ZOOM 0xFB */ | |
3837 | "noname", /* VK_NONAME 0xFC */ | |
3838 | "pa1", /* VK_PA1 0xFD */ | |
3839 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 3840 | 0 /* 0xFF */ |
e98a93eb GV |
3841 | }; |
3842 | ||
04f215f0 | 3843 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3844 | |
37cd9f30 KH |
3845 | #ifdef XK_kana_A |
3846 | static char *lispy_kana_keys[] = | |
3847 | { | |
3848 | /* X Keysym value */ | |
3849 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3850 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3851 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3852 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3853 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3854 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3855 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3856 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3857 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3858 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3859 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3860 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3861 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3862 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3863 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3864 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3865 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3866 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3867 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3868 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3869 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3870 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3871 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3872 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3873 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3874 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3875 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3876 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3877 | }; | |
3878 | #endif /* XK_kana_A */ | |
3879 | ||
04f215f0 RS |
3880 | #define FUNCTION_KEY_OFFSET 0xff00 |
3881 | ||
284f4730 JB |
3882 | /* You'll notice that this table is arranged to be conveniently |
3883 | indexed by X Windows keysym values. */ | |
3884 | static char *lispy_function_keys[] = | |
3885 | { | |
3886 | /* X Keysym value */ | |
3887 | ||
75045dcb RS |
3888 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
3889 | "backspace", "tab", "linefeed", "clear", | |
3890 | 0, "return", 0, 0, | |
3891 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
3892 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 3893 | 0, 0, 0, 0, |
75045dcb RS |
3894 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
3895 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
3896 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
3897 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
3898 | "eisu-toggle", /* 0xff30...3f */ | |
3899 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
3900 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
3901 | ||
75045dcb RS |
3902 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
3903 | "down", "prior", "next", "end", | |
3904 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3905 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
3906 | "print", | |
3907 | "execute", | |
3908 | "insert", | |
3909 | 0, /* 0xff64 */ | |
3910 | "undo", | |
3911 | "redo", | |
3912 | "menu", | |
3913 | "find", | |
3914 | "cancel", | |
3915 | "help", | |
3916 | "break", /* 0xff6b */ | |
3917 | ||
75045dcb RS |
3918 | 0, 0, 0, 0, |
3919 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
3920 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
3921 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3922 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3923 | "kp-tab", /* 0xff89 */ | |
3924 | 0, 0, 0, | |
3925 | "kp-enter", /* 0xff8d */ | |
3926 | 0, 0, 0, | |
3927 | "kp-f1", /* 0xff91 */ | |
3928 | "kp-f2", | |
3929 | "kp-f3", | |
3930 | "kp-f4", | |
872157e7 RS |
3931 | "kp-home", /* 0xff95 */ |
3932 | "kp-left", | |
3933 | "kp-up", | |
3934 | "kp-right", | |
3935 | "kp-down", | |
3936 | "kp-prior", /* kp-page-up */ | |
3937 | "kp-next", /* kp-page-down */ | |
3938 | "kp-end", | |
3939 | "kp-begin", | |
3940 | "kp-insert", | |
3941 | "kp-delete", | |
3942 | 0, /* 0xffa0 */ | |
3943 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3944 | "kp-multiply", /* 0xffaa */ |
3945 | "kp-add", | |
3946 | "kp-separator", | |
3947 | "kp-subtract", | |
3948 | "kp-decimal", | |
3949 | "kp-divide", /* 0xffaf */ | |
3950 | "kp-0", /* 0xffb0 */ | |
3951 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3952 | 0, /* 0xffba */ | |
3953 | 0, 0, | |
3954 | "kp-equal", /* 0xffbd */ | |
3955 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3956 | "f2", |
3957 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3958 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3959 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3960 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3961 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3962 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3963 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3964 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 3965 | }; |
284f4730 | 3966 | |
04f215f0 RS |
3967 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
3968 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
3969 | ||
3970 | static char *iso_lispy_function_keys[] = | |
3971 | { | |
3972 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
3973 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
3974 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
3975 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
3976 | "iso-lefttab", /* 0xfe20 */ | |
3977 | "iso-move-line-up", "iso-move-line-down", | |
3978 | "iso-partial-line-up", "iso-partial-line-down", | |
3979 | "iso-partial-space-left", "iso-partial-space-right", | |
3980 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
3981 | "iso-release-margin-left", "iso-release-margin-right", | |
3982 | "iso-release-both-margins", | |
3983 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
3984 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
3985 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
3986 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
3987 | }; | |
3988 | ||
3989 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 3990 | |
df0f2ba1 | 3991 | static char *lispy_mouse_names[] = |
284f4730 JB |
3992 | { |
3993 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3994 | }; | |
3995 | ||
07de30b9 GV |
3996 | #ifdef WINDOWSNT |
3997 | /* mouse-wheel events are generated by the wheel on devices such as | |
3998 | the MS Intellimouse. The wheel sits in between the left and right | |
3999 | mouse buttons, and is typically used to scroll or zoom the window | |
4000 | underneath the pointer. mouse-wheel events specify the object on | |
4001 | which they operate, and a delta corresponding to the amount and | |
4002 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4003 | generates a mouse-2 event. */ | |
4004 | static char *lispy_mouse_wheel_names[] = | |
4005 | { | |
4006 | "mouse-wheel" | |
4007 | }; | |
a24dc617 | 4008 | |
07de30b9 GV |
4009 | #endif /* WINDOWSNT */ |
4010 | ||
a24dc617 RS |
4011 | /* drag-n-drop events are generated when a set of selected files are |
4012 | dragged from another application and dropped onto an Emacs window. */ | |
4013 | static char *lispy_drag_n_drop_names[] = | |
4014 | { | |
4015 | "drag-n-drop" | |
4016 | }; | |
4017 | ||
3c370943 | 4018 | /* Scroll bar parts. */ |
4bb994d1 | 4019 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda GM |
4020 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
4021 | Lisp_Object Qtop; | |
4bb994d1 | 4022 | |
3c370943 JB |
4023 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4024 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4025 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
7ee32cda | 4026 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll |
4bb994d1 JB |
4027 | }; |
4028 | ||
5bf68f6e AS |
4029 | /* User signal events. */ |
4030 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4031 | ||
4032 | Lisp_Object *lispy_user_signals[] = | |
4033 | { | |
4034 | &Qusr1_signal, &Qusr2_signal | |
4035 | }; | |
4036 | ||
4bb994d1 | 4037 | |
7b4aedb9 | 4038 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4039 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4040 | |
4041 | The elements have the form | |
4042 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4043 | where REST is the cdr of a position as it would be reported in the event. | |
4044 | ||
4045 | The make_lispy_event function stores positions here to tell the | |
4046 | difference between click and drag events, and to store the starting | |
4047 | location to be included in drag events. */ | |
4048 | ||
4049 | static Lisp_Object button_down_location; | |
88cb0656 | 4050 | |
fbcd35bd JB |
4051 | /* Information about the most recent up-going button event: Which |
4052 | button, what location, and what time. */ | |
4053 | ||
559f9d04 RS |
4054 | static int last_mouse_button; |
4055 | static int last_mouse_x; | |
4056 | static int last_mouse_y; | |
4057 | static unsigned long button_down_time; | |
fbcd35bd | 4058 | |
564dc952 JB |
4059 | /* The maximum time between clicks to make a double-click, |
4060 | or Qnil to disable double-click detection, | |
4061 | or Qt for no time limit. */ | |
4062 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
4063 | |
4064 | /* The number of clicks in this multiple-click. */ | |
4065 | ||
4066 | int double_click_count; | |
4067 | ||
284f4730 JB |
4068 | /* Given a struct input_event, build the lisp event which represents |
4069 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4070 | movement buffer, which should have a movement event in it. |
4071 | ||
4072 | Note that events must be passed to this function in the order they | |
4073 | are received; this function stores the location of button presses | |
4074 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4075 | |
4076 | static Lisp_Object | |
4077 | make_lispy_event (event) | |
4078 | struct input_event *event; | |
4079 | { | |
79a7046c RS |
4080 | int i; |
4081 | ||
0220c518 | 4082 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4083 | { |
284f4730 JB |
4084 | /* A simple keystroke. */ |
4085 | case ascii_keystroke: | |
86e5706b | 4086 | { |
9343ab07 | 4087 | Lisp_Object lispy_c; |
e9bf89a0 | 4088 | int c = event->code & 0377; |
5a1c6df8 JB |
4089 | /* Turn ASCII characters into control characters |
4090 | when proper. */ | |
4091 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4092 | c = make_ctrl_char (c); |
4093 | ||
4094 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4095 | just above, and the shift key was taken care of by the X code, | |
4096 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4097 | c |= (event->modifiers |
4098 | & (meta_modifier | alt_modifier | |
4099 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4100 | /* Distinguish Shift-SPC from SPC. */ |
4101 | if ((event->code & 0377) == 040 | |
4102 | && event->modifiers & shift_modifier) | |
4103 | c |= shift_modifier; | |
559f9d04 | 4104 | button_down_time = 0; |
bb9e9bed | 4105 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4106 | return lispy_c; |
86e5706b | 4107 | } |
284f4730 JB |
4108 | |
4109 | /* A function key. The symbol may need to have modifier prefixes | |
4110 | tacked onto it. */ | |
4111 | case non_ascii_keystroke: | |
559f9d04 | 4112 | button_down_time = 0; |
e9bf89a0 RS |
4113 | |
4114 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4115 | if (event->code == lispy_accent_codes[i]) | |
4116 | return modify_event_symbol (i, | |
4117 | event->modifiers, | |
80e4aa30 | 4118 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4119 | lispy_accent_keys, &accent_key_syms, |
4120 | (sizeof (lispy_accent_keys) | |
4121 | / sizeof (lispy_accent_keys[0]))); | |
4122 | ||
270a208f | 4123 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4124 | if (event->code & (1 << 28)) |
4125 | { | |
4126 | /* We need to use an alist rather than a vector as the cache | |
4127 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4128 | if (NILP (current_kboard->system_key_syms)) |
4129 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4130 | return modify_event_symbol (event->code, |
80e4aa30 | 4131 | event->modifiers, |
7c97ffdc KH |
4132 | Qfunction_key, |
4133 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4134 | 0, ¤t_kboard->system_key_syms, |
4135 | (unsigned)-1); | |
80e4aa30 RS |
4136 | } |
4137 | ||
37cd9f30 KH |
4138 | #ifdef XK_kana_A |
4139 | if (event->code >= 0x400 && event->code < 0x500) | |
4140 | return modify_event_symbol (event->code - 0x400, | |
4141 | event->modifiers & ~shift_modifier, | |
4142 | Qfunction_key, Qnil, | |
4143 | lispy_kana_keys, &func_key_syms, | |
4144 | (sizeof (lispy_kana_keys) | |
4145 | / sizeof (lispy_kana_keys[0]))); | |
4146 | #endif /* XK_kana_A */ | |
4147 | ||
111c4138 | 4148 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4149 | if (event->code < FUNCTION_KEY_OFFSET |
4150 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4151 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4152 | event->modifiers, | |
4153 | Qfunction_key, Qnil, | |
4154 | iso_lispy_function_keys, &func_key_syms, | |
4155 | (sizeof (iso_lispy_function_keys) | |
4156 | / sizeof (iso_lispy_function_keys[0]))); | |
4157 | else | |
111c4138 | 4158 | #endif |
04f215f0 RS |
4159 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4160 | event->modifiers, | |
4161 | Qfunction_key, Qnil, | |
4162 | lispy_function_keys, &func_key_syms, | |
4163 | (sizeof (lispy_function_keys) | |
4164 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4165 | |
514354e9 | 4166 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4167 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4168 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4169 | case mouse_click: |
7ee32cda | 4170 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4171 | case scroll_bar_click: |
7ee32cda | 4172 | #endif |
284f4730 | 4173 | { |
e9bf89a0 | 4174 | int button = event->code; |
559f9d04 | 4175 | int is_double; |
7b4aedb9 | 4176 | Lisp_Object position; |
dbc4e1c1 JB |
4177 | Lisp_Object *start_pos_ptr; |
4178 | Lisp_Object start_pos; | |
284f4730 | 4179 | |
7b4aedb9 | 4180 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
4181 | abort (); |
4182 | ||
7b4aedb9 JB |
4183 | /* Build the position as appropriate for this mouse click. */ |
4184 | if (event->kind == mouse_click) | |
284f4730 | 4185 | { |
7b4aedb9 | 4186 | int part; |
598a9fa7 | 4187 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4188 | Lisp_Object window; |
7b4aedb9 | 4189 | Lisp_Object posn; |
7ee32cda | 4190 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4191 | int row, column; |
4192 | ||
5da3133a RS |
4193 | /* Ignore mouse events that were made on frame that |
4194 | have been deleted. */ | |
4195 | if (! FRAME_LIVE_P (f)) | |
4196 | return Qnil; | |
4197 | ||
7ee32cda GM |
4198 | /* EVENT->x and EVENT->y are frame-relative pixel |
4199 | coordinates at this place. Under old redisplay, COLUMN | |
4200 | and ROW are set to frame relative glyph coordinates | |
4201 | which are then used to determine whether this click is | |
4202 | in a menu (non-toolkit version). */ | |
4203 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4204 | &column, &row, NULL, 1); | |
7b4aedb9 | 4205 | |
eef045bf RS |
4206 | #ifndef USE_X_TOOLKIT |
4207 | /* In the non-toolkit version, clicks on the menu bar | |
4208 | are ordinary button events in the event buffer. | |
4209 | Distinguish them, and invoke the menu. | |
4210 | ||
4211 | (In the toolkit version, the toolkit handles the menu bar | |
4212 | and Emacs doesn't know about it until after the user | |
4213 | makes a selection.) */ | |
2ee250ec RS |
4214 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4215 | && (event->modifiers & down_modifier)) | |
bb936752 | 4216 | { |
b7c49376 | 4217 | Lisp_Object items, item; |
0a0e8fe6 RS |
4218 | int hpos; |
4219 | int i; | |
4220 | ||
2ee250ec | 4221 | #if 0 |
0a0e8fe6 RS |
4222 | /* Activate the menu bar on the down event. If the |
4223 | up event comes in before the menu code can deal with it, | |
4224 | just ignore it. */ | |
4225 | if (! (event->modifiers & down_modifier)) | |
4226 | return Qnil; | |
2ee250ec | 4227 | #endif |
0aafc975 | 4228 | |
7ee32cda | 4229 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4230 | item = Qnil; |
5ec75a55 | 4231 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4232 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4233 | { |
4234 | Lisp_Object pos, string; | |
b7c49376 | 4235 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 4236 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
4237 | if (NILP (string)) |
4238 | break; | |
9e20143a RS |
4239 | if (column >= XINT (pos) |
4240 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
4241 | { |
4242 | item = XVECTOR (items)->contents[i]; | |
4243 | break; | |
4244 | } | |
5ec75a55 | 4245 | } |
9e20143a | 4246 | |
7ee32cda GM |
4247 | /* ELisp manual 2.4b says (x y) are window relative but |
4248 | code says they are frame-relative. */ | |
5ec75a55 RS |
4249 | position |
4250 | = Fcons (event->frame_or_window, | |
4251 | Fcons (Qmenu_bar, | |
4252 | Fcons (Fcons (event->x, event->y), | |
4253 | Fcons (make_number (event->timestamp), | |
4254 | Qnil)))); | |
4255 | ||
b7c49376 | 4256 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4257 | } |
eef045bf | 4258 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4259 | |
7ee32cda GM |
4260 | /* Set `window' to the window under frame pixel coordinates |
4261 | event->x/event->y. */ | |
4262 | window = window_from_coordinates (f, XINT (event->x), | |
4263 | XINT (event->y), &part, 0); | |
0aafc975 | 4264 | |
8c18cbfb | 4265 | if (!WINDOWP (window)) |
78ced549 RS |
4266 | { |
4267 | window = event->frame_or_window; | |
4268 | posn = Qnil; | |
4269 | } | |
284f4730 | 4270 | else |
7b4aedb9 | 4271 | { |
7ee32cda GM |
4272 | /* It's a click in window window at frame coordinates |
4273 | event->x/ event->y. */ | |
4274 | struct window *w = XWINDOW (window); | |
4275 | ||
4276 | /* Get window relative coordinates. Original code | |
4277 | `rounded' this to glyph boundaries. */ | |
4278 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4279 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4280 | ||
4281 | /* Set event coordinates to window-relative coordinates | |
4282 | for constructing the Lisp event below. */ | |
4283 | XSETINT (event->x, wx); | |
4284 | XSETINT (event->y, wy); | |
4285 | ||
4286 | if (part == 1 || part == 3) | |
4287 | { | |
4288 | /* Mode line or top line. Look for a string under | |
4289 | the mouse that may have a `local-map' property. */ | |
4290 | Lisp_Object string; | |
4291 | int charpos; | |
4292 | ||
045dee35 | 4293 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4294 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4295 | if (STRINGP (string)) | |
4296 | string_info = Fcons (string, make_number (charpos)); | |
4297 | } | |
7b4aedb9 JB |
4298 | else if (part == 2) |
4299 | posn = Qvertical_line; | |
4300 | else | |
7ee32cda | 4301 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
7b4aedb9 JB |
4302 | } |
4303 | ||
5ec75a55 RS |
4304 | position |
4305 | = Fcons (window, | |
4306 | Fcons (posn, | |
4307 | Fcons (Fcons (event->x, event->y), | |
4308 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4309 | (NILP (string_info) |
4310 | ? Qnil | |
4311 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4312 | } |
7ee32cda | 4313 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4314 | else |
88cb0656 | 4315 | { |
7ee32cda | 4316 | /* It's a scrollbar click. */ |
9e20143a RS |
4317 | Lisp_Object window; |
4318 | Lisp_Object portion_whole; | |
4319 | Lisp_Object part; | |
4320 | ||
4321 | window = event->frame_or_window; | |
4322 | portion_whole = Fcons (event->x, event->y); | |
4323 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4324 | |
db08707d RS |
4325 | position |
4326 | = Fcons (window, | |
4327 | Fcons (Qvertical_scroll_bar, | |
4328 | Fcons (portion_whole, | |
4329 | Fcons (make_number (event->timestamp), | |
4330 | Fcons (part, Qnil))))); | |
88cb0656 | 4331 | } |
7ee32cda | 4332 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4333 | |
dbc4e1c1 JB |
4334 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
4335 | ||
4336 | start_pos = *start_pos_ptr; | |
4337 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4338 | |
559f9d04 RS |
4339 | is_double = (button == last_mouse_button |
4340 | && XINT (event->x) == last_mouse_x | |
4341 | && XINT (event->y) == last_mouse_y | |
4342 | && button_down_time != 0 | |
4343 | && (EQ (Vdouble_click_time, Qt) | |
4344 | || (INTEGERP (Vdouble_click_time) | |
4345 | && ((int)(event->timestamp - button_down_time) | |
4346 | < XINT (Vdouble_click_time))))); | |
4347 | last_mouse_button = button; | |
4348 | last_mouse_x = XINT (event->x); | |
4349 | last_mouse_y = XINT (event->y); | |
4350 | ||
7b4aedb9 JB |
4351 | /* If this is a button press, squirrel away the location, so |
4352 | we can decide later whether it was a click or a drag. */ | |
4353 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4354 | { |
4355 | if (is_double) | |
4356 | { | |
4357 | double_click_count++; | |
4358 | event->modifiers |= ((double_click_count > 2) | |
4359 | ? triple_modifier | |
4360 | : double_modifier); | |
4361 | } | |
4362 | else | |
4363 | double_click_count = 1; | |
4364 | button_down_time = event->timestamp; | |
4365 | *start_pos_ptr = Fcopy_alist (position); | |
4366 | } | |
7b4aedb9 | 4367 | |
88cb0656 | 4368 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4369 | see if this was a click or a drag. */ |
88cb0656 JB |
4370 | else if (event->modifiers & up_modifier) |
4371 | { | |
48e416d4 RS |
4372 | /* If we did not see a down before this up, |
4373 | ignore the up. Probably this happened because | |
4374 | the down event chose a menu item. | |
4375 | It would be an annoyance to treat the release | |
4376 | of the button that chose the menu item | |
4377 | as a separate event. */ | |
4378 | ||
8c18cbfb | 4379 | if (!CONSP (start_pos)) |
48e416d4 RS |
4380 | return Qnil; |
4381 | ||
88cb0656 | 4382 | event->modifiers &= ~up_modifier; |
48e416d4 | 4383 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4384 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4385 | event->modifiers |= click_modifier; |
4386 | else | |
48e416d4 | 4387 | #endif |
dbc4e1c1 JB |
4388 | { |
4389 | /* The third element of every position should be the (x,y) | |
4390 | pair. */ | |
9b8eb840 | 4391 | Lisp_Object down; |
dbc4e1c1 | 4392 | |
9b8eb840 | 4393 | down = Fnth (make_number (2), start_pos); |
7539e11f KR |
4394 | if (EQ (event->x, XCAR (down)) |
4395 | && EQ (event->y, XCDR (down))) | |
fbcd35bd | 4396 | { |
bc536d84 | 4397 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4398 | } |
4399 | else | |
4400 | { | |
559f9d04 | 4401 | button_down_time = 0; |
fbcd35bd JB |
4402 | event->modifiers |= drag_modifier; |
4403 | } | |
bc536d84 RS |
4404 | /* Don't check is_double; treat this as multiple |
4405 | if the down-event was multiple. */ | |
4406 | if (double_click_count > 1) | |
4407 | event->modifiers |= ((double_click_count > 2) | |
4408 | ? triple_modifier | |
4409 | : double_modifier); | |
dbc4e1c1 | 4410 | } |
88cb0656 JB |
4411 | } |
4412 | else | |
4413 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4414 | the up_modifier set. */ |
88cb0656 JB |
4415 | abort (); |
4416 | ||
88cb0656 | 4417 | { |
7b4aedb9 | 4418 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4419 | Lisp_Object head; |
4420 | ||
4421 | head = modify_event_symbol (button, | |
4422 | event->modifiers, | |
4423 | Qmouse_click, Qnil, | |
4424 | lispy_mouse_names, &mouse_syms, | |
4425 | (sizeof (lispy_mouse_names) | |
4426 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4427 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4428 | return Fcons (head, |
4429 | Fcons (start_pos, | |
4430 | Fcons (position, | |
4431 | Qnil))); | |
fbcd35bd JB |
4432 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4433 | return Fcons (head, | |
4434 | Fcons (position, | |
4435 | Fcons (make_number (double_click_count), | |
4436 | Qnil))); | |
88cb0656 JB |
4437 | else |
4438 | return Fcons (head, | |
7b4aedb9 | 4439 | Fcons (position, |
88cb0656 JB |
4440 | Qnil)); |
4441 | } | |
284f4730 | 4442 | } |
db08707d | 4443 | |
7ee32cda GM |
4444 | #if USE_TOOLKIT_SCROLL_BARS |
4445 | ||
4446 | /* We don't have down and up events if using toolkit scroll bars, | |
4447 | so make this always a click event. Store in the `part' of | |
4448 | the Lisp event a symbol which maps to the following actions: | |
4449 | ||
4450 | `above_handle' page up | |
4451 | `below_handle' page down | |
4452 | `up' line up | |
4453 | `down' line down | |
4454 | `top' top of buffer | |
4455 | `bottom' bottom of buffer | |
4456 | `handle' thumb has been dragged. | |
4457 | `end-scroll' end of interaction with scroll bar | |
4458 | ||
4459 | The incoming input_event contains in its `part' member an | |
4460 | index of type `enum scroll_bar_part' which we can use as an | |
4461 | index in scroll_bar_parts to get the appropriate symbol. */ | |
4462 | ||
4463 | case scroll_bar_click: | |
4464 | { | |
4465 | Lisp_Object position, head, window, portion_whole, part; | |
4466 | ||
4467 | window = event->frame_or_window; | |
4468 | portion_whole = Fcons (event->x, event->y); | |
4469 | part = *scroll_bar_parts[(int) event->part]; | |
4470 | ||
4471 | position | |
4472 | = Fcons (window, | |
4473 | Fcons (Qvertical_scroll_bar, | |
4474 | Fcons (portion_whole, | |
4475 | Fcons (make_number (event->timestamp), | |
4476 | Fcons (part, Qnil))))); | |
4477 | ||
4478 | /* Always treat scroll bar events as clicks. */ | |
4479 | event->modifiers |= click_modifier; | |
4480 | ||
4481 | /* Get the symbol we should use for the mouse click. */ | |
4482 | head = modify_event_symbol (event->code, | |
4483 | event->modifiers, | |
4484 | Qmouse_click, Qnil, | |
4485 | lispy_mouse_names, &mouse_syms, | |
4486 | (sizeof (lispy_mouse_names) | |
4487 | / sizeof (lispy_mouse_names[0]))); | |
4488 | return Fcons (head, Fcons (position, Qnil)); | |
4489 | } | |
4490 | ||
4491 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
4492 | ||
db08707d | 4493 | #ifdef WINDOWSNT |
fbd6baed | 4494 | case w32_scroll_bar_click: |
db08707d RS |
4495 | { |
4496 | int button = event->code; | |
4497 | int is_double; | |
4498 | Lisp_Object position; | |
4499 | Lisp_Object *start_pos_ptr; | |
4500 | Lisp_Object start_pos; | |
4501 | ||
4502 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4503 | abort (); | |
4504 | ||
4505 | { | |
4506 | Lisp_Object window; | |
4507 | Lisp_Object portion_whole; | |
4508 | Lisp_Object part; | |
4509 | ||
4510 | window = event->frame_or_window; | |
4511 | portion_whole = Fcons (event->x, event->y); | |
4512 | part = *scroll_bar_parts[(int) event->part]; | |
4513 | ||
e8886a1d RS |
4514 | position |
4515 | = Fcons (window, | |
4516 | Fcons (Qvertical_scroll_bar, | |
4517 | Fcons (portion_whole, | |
4518 | Fcons (make_number (event->timestamp), | |
4519 | Fcons (part, Qnil))))); | |
db08707d RS |
4520 | } |
4521 | ||
fbd6baed | 4522 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4523 | event->modifiers |= click_modifier; |
4524 | ||
4525 | { | |
4526 | /* Get the symbol we should use for the mouse click. */ | |
4527 | Lisp_Object head; | |
4528 | ||
4529 | head = modify_event_symbol (button, | |
4530 | event->modifiers, | |
4531 | Qmouse_click, Qnil, | |
4532 | lispy_mouse_names, &mouse_syms, | |
4533 | (sizeof (lispy_mouse_names) | |
4534 | / sizeof (lispy_mouse_names[0]))); | |
4535 | return Fcons (head, | |
4536 | Fcons (position, | |
4537 | Qnil)); | |
4538 | } | |
4539 | } | |
07de30b9 GV |
4540 | case mouse_wheel: |
4541 | { | |
4542 | int part; | |
4543 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4544 | Lisp_Object window; | |
4545 | Lisp_Object posn; | |
4546 | Lisp_Object head, position; | |
4547 | int row, column; | |
4548 | ||
4549 | /* Ignore mouse events that were made on frame that | |
4550 | have been deleted. */ | |
4551 | if (! FRAME_LIVE_P (f)) | |
4552 | return Qnil; | |
4553 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4554 | &column, &row, NULL, 1); | |
7ee32cda | 4555 | window = window_from_coordinates (f, column, row, &part, 0); |
07de30b9 GV |
4556 | |
4557 | if (!WINDOWP (window)) | |
4558 | { | |
4559 | window = event->frame_or_window; | |
4560 | posn = Qnil; | |
4561 | } | |
4562 | else | |
4563 | { | |
4564 | int pixcolumn, pixrow; | |
4565 | column -= XINT (XWINDOW (window)->left); | |
4566 | row -= XINT (XWINDOW (window)->top); | |
4567 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4568 | XSETINT (event->x, pixcolumn); | |
4569 | XSETINT (event->y, pixrow); | |
4570 | ||
4571 | if (part == 1) | |
4572 | posn = Qmode_line; | |
4573 | else if (part == 2) | |
4574 | posn = Qvertical_line; | |
7ee32cda | 4575 | else if (part == 3) |
045dee35 | 4576 | posn = Qheader_line; |
07de30b9 GV |
4577 | else |
4578 | XSETINT (posn, | |
4579 | buffer_posn_from_coords (XWINDOW (window), | |
4580 | column, row)); | |
4581 | } | |
db08707d | 4582 | |
07de30b9 GV |
4583 | { |
4584 | Lisp_Object head, position; | |
4585 | ||
4586 | position | |
4587 | = Fcons (window, | |
4588 | Fcons (posn, | |
4589 | Fcons (Fcons (event->x, event->y), | |
4590 | Fcons (make_number (event->timestamp), | |
4591 | Qnil)))); | |
4592 | ||
4593 | head = modify_event_symbol (0, event->modifiers, | |
4594 | Qmouse_wheel, Qnil, | |
4595 | lispy_mouse_wheel_names, | |
4596 | &mouse_wheel_syms, 1); | |
4597 | return Fcons (head, | |
4598 | Fcons (position, | |
4599 | Fcons (make_number (event->code), | |
4600 | Qnil))); | |
4601 | } | |
4602 | } | |
4603 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
4604 | |
4605 | case drag_n_drop: | |
4606 | { | |
4607 | int part; | |
4608 | FRAME_PTR f; | |
4609 | Lisp_Object window; | |
4610 | Lisp_Object posn; | |
a24dc617 RS |
4611 | Lisp_Object files; |
4612 | int row, column; | |
4613 | ||
4614 | /* The frame_or_window field should be a cons of the frame in | |
4615 | which the event occurred and a list of the filenames | |
4616 | dropped. */ | |
4617 | if (! CONSP (event->frame_or_window)) | |
4618 | abort (); | |
4619 | ||
7539e11f KR |
4620 | f = XFRAME (XCAR (event->frame_or_window)); |
4621 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
4622 | |
4623 | /* Ignore mouse events that were made on frames that | |
4624 | have been deleted. */ | |
4625 | if (! FRAME_LIVE_P (f)) | |
4626 | return Qnil; | |
4627 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4628 | &column, &row, NULL, 1); | |
7ee32cda | 4629 | window = window_from_coordinates (f, column, row, &part, 0); |
a24dc617 RS |
4630 | |
4631 | if (!WINDOWP (window)) | |
4632 | { | |
7539e11f | 4633 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
4634 | posn = Qnil; |
4635 | } | |
4636 | else | |
4637 | { | |
7ee32cda GM |
4638 | /* It's an event in window `window' at frame coordinates |
4639 | event->x/ event->y. */ | |
4640 | struct window *w = XWINDOW (window); | |
4641 | ||
4642 | /* Get window relative coordinates. */ | |
4643 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4644 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4645 | ||
4646 | /* Set event coordinates to window-relative coordinates | |
4647 | for constructing the Lisp event below. */ | |
4648 | XSETINT (event->x, wx); | |
4649 | XSETINT (event->y, wy); | |
a24dc617 RS |
4650 | |
4651 | if (part == 1) | |
4652 | posn = Qmode_line; | |
4653 | else if (part == 2) | |
4654 | posn = Qvertical_line; | |
7ee32cda | 4655 | else if (part == 3) |
045dee35 | 4656 | posn = Qheader_line; |
a24dc617 | 4657 | else |
7ee32cda | 4658 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
a24dc617 RS |
4659 | } |
4660 | ||
4661 | { | |
4662 | Lisp_Object head, position; | |
4663 | ||
4664 | position | |
4665 | = Fcons (window, | |
4666 | Fcons (posn, | |
4667 | Fcons (Fcons (event->x, event->y), | |
4668 | Fcons (make_number (event->timestamp), | |
4669 | Qnil)))); | |
4670 | ||
4671 | head = modify_event_symbol (0, event->modifiers, | |
4672 | Qdrag_n_drop, Qnil, | |
4673 | lispy_drag_n_drop_names, | |
4674 | &drag_n_drop_syms, 1); | |
4675 | return Fcons (head, | |
4676 | Fcons (position, | |
4677 | Fcons (files, | |
4678 | Qnil))); | |
4679 | } | |
4680 | } | |
514354e9 | 4681 | #endif /* HAVE_MOUSE */ |
284f4730 | 4682 | |
e98a93eb | 4683 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4684 | case menu_bar_event: |
4685 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4686 | if (!CONSP (event->frame_or_window)) | |
4687 | abort (); | |
7539e11f | 4688 | return XCDR (event->frame_or_window); |
2470a66f KH |
4689 | #endif |
4690 | ||
9ea173e8 | 4691 | case TOOL_BAR_EVENT: |
7ee32cda GM |
4692 | { |
4693 | Lisp_Object key; | |
4694 | if (!CONSP (event->frame_or_window)) | |
4695 | abort (); | |
4696 | key = XCDR (event->frame_or_window); | |
4697 | if (SYMBOLP (key)) | |
4698 | key = apply_modifiers (event->modifiers, key); | |
4699 | return key; | |
4700 | } | |
4701 | ||
5bf68f6e AS |
4702 | case user_signal: |
4703 | /* A user signal. */ | |
4704 | return *lispy_user_signals[event->code]; | |
4705 | ||
284f4730 JB |
4706 | /* The 'kind' field of the event is something we don't recognize. */ |
4707 | default: | |
48e416d4 | 4708 | abort (); |
284f4730 JB |
4709 | } |
4710 | } | |
4711 | ||
514354e9 | 4712 | #ifdef HAVE_MOUSE |
6cbff1cb | 4713 | |
284f4730 | 4714 | static Lisp_Object |
7b4aedb9 | 4715 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4716 | FRAME_PTR frame; |
7b4aedb9 | 4717 | Lisp_Object bar_window; |
3c370943 | 4718 | enum scroll_bar_part part; |
284f4730 | 4719 | Lisp_Object x, y; |
e5d77022 | 4720 | unsigned long time; |
284f4730 | 4721 | { |
3c370943 | 4722 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4723 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4724 | { |
9b8eb840 | 4725 | Lisp_Object part_sym; |
4bb994d1 | 4726 | |
9b8eb840 | 4727 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4728 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4729 | (Fcons (Fcons (bar_window, |
3c370943 | 4730 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4731 | Fcons (Fcons (x, y), |
4732 | Fcons (make_number (time), | |
cb5df6ae | 4733 | Fcons (part_sym, |
4bb994d1 JB |
4734 | Qnil))))), |
4735 | Qnil))); | |
4736 | } | |
4737 | ||
4738 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4739 | else |
4740 | { | |
4bb994d1 | 4741 | int area; |
9e20143a | 4742 | Lisp_Object window; |
4bb994d1 | 4743 | Lisp_Object posn; |
9e20143a | 4744 | |
9e20143a | 4745 | if (frame) |
7ee32cda GM |
4746 | /* It's in a frame; which window on that frame? */ |
4747 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
4748 | else |
4749 | window = Qnil; | |
4bb994d1 | 4750 | |
8c18cbfb | 4751 | if (WINDOWP (window)) |
4bb994d1 | 4752 | { |
7ee32cda | 4753 | struct window *w = XWINDOW (window); |
7ee32cda | 4754 | int wx, wy; |
7ee32cda GM |
4755 | |
4756 | /* Get window relative coordinates. */ | |
4757 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
4758 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
4759 | XSETINT (x, wx); | |
4760 | XSETINT (y, wy); | |
4761 | ||
4bb994d1 JB |
4762 | if (area == 1) |
4763 | posn = Qmode_line; | |
4764 | else if (area == 2) | |
4765 | posn = Qvertical_line; | |
7ee32cda | 4766 | else if (area == 3) |
045dee35 | 4767 | posn = Qheader_line; |
4bb994d1 | 4768 | else |
7ee32cda | 4769 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
4bb994d1 | 4770 | } |
e9bf89a0 RS |
4771 | else if (frame != 0) |
4772 | { | |
18cd2eeb | 4773 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4774 | posn = Qnil; |
4775 | } | |
284f4730 | 4776 | else |
4bb994d1 JB |
4777 | { |
4778 | window = Qnil; | |
4779 | posn = Qnil; | |
bb9e9bed KH |
4780 | XSETFASTINT (x, 0); |
4781 | XSETFASTINT (y, 0); | |
4bb994d1 | 4782 | } |
284f4730 | 4783 | |
4bb994d1 JB |
4784 | return Fcons (Qmouse_movement, |
4785 | Fcons (Fcons (window, | |
4786 | Fcons (posn, | |
4787 | Fcons (Fcons (x, y), | |
4788 | Fcons (make_number (time), | |
4789 | Qnil)))), | |
4790 | Qnil)); | |
4791 | } | |
284f4730 JB |
4792 | } |
4793 | ||
514354e9 | 4794 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4795 | |
cd21b839 JB |
4796 | /* Construct a switch frame event. */ |
4797 | static Lisp_Object | |
4798 | make_lispy_switch_frame (frame) | |
4799 | Lisp_Object frame; | |
4800 | { | |
4801 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4802 | } | |
0a7f1fc0 JB |
4803 | \f |
4804 | /* Manipulating modifiers. */ | |
284f4730 | 4805 | |
0a7f1fc0 | 4806 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4807 | |
0a7f1fc0 JB |
4808 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4809 | SYMBOL's name of the end of the modifiers; the string from this | |
4810 | position is the unmodified symbol name. | |
284f4730 | 4811 | |
0a7f1fc0 | 4812 | This doesn't use any caches. */ |
6da3dd3a | 4813 | |
0a7f1fc0 JB |
4814 | static int |
4815 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4816 | Lisp_Object symbol; |
0a7f1fc0 | 4817 | int *modifier_end; |
284f4730 JB |
4818 | { |
4819 | struct Lisp_String *name; | |
4820 | int i; | |
4821 | int modifiers; | |
284f4730 JB |
4822 | |
4823 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4824 | |
284f4730 JB |
4825 | modifiers = 0; |
4826 | name = XSYMBOL (symbol)->name; | |
4827 | ||
fc932ac6 | 4828 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
4829 | { |
4830 | int this_mod_end = 0; | |
4831 | int this_mod = 0; | |
284f4730 | 4832 | |
6da3dd3a RS |
4833 | /* See if the name continues with a modifier word. |
4834 | Check that the word appears, but don't check what follows it. | |
4835 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4836 | |
6da3dd3a RS |
4837 | switch (name->data[i]) |
4838 | { | |
4839 | #define SINGLE_LETTER_MOD(BIT) \ | |
4840 | (this_mod_end = i + 1, this_mod = BIT) | |
4841 | ||
6da3dd3a RS |
4842 | case 'A': |
4843 | SINGLE_LETTER_MOD (alt_modifier); | |
4844 | break; | |
284f4730 | 4845 | |
6da3dd3a RS |
4846 | case 'C': |
4847 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4848 | break; | |
284f4730 | 4849 | |
6da3dd3a RS |
4850 | case 'H': |
4851 | SINGLE_LETTER_MOD (hyper_modifier); | |
4852 | break; | |
4853 | ||
6da3dd3a RS |
4854 | case 'M': |
4855 | SINGLE_LETTER_MOD (meta_modifier); | |
4856 | break; | |
4857 | ||
6da3dd3a RS |
4858 | case 'S': |
4859 | SINGLE_LETTER_MOD (shift_modifier); | |
4860 | break; | |
4861 | ||
4862 | case 's': | |
6da3dd3a RS |
4863 | SINGLE_LETTER_MOD (super_modifier); |
4864 | break; | |
4865 | ||
0a7f1fc0 | 4866 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4867 | } |
4868 | ||
4869 | /* If we found no modifier, stop looking for them. */ | |
4870 | if (this_mod_end == 0) | |
4871 | break; | |
4872 | ||
4873 | /* Check there is a dash after the modifier, so that it | |
4874 | really is a modifier. */ | |
fc932ac6 RS |
4875 | if (this_mod_end >= STRING_BYTES (name) |
4876 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
4877 | break; |
4878 | ||
4879 | /* This modifier is real; look for another. */ | |
4880 | modifiers |= this_mod; | |
4881 | i = this_mod_end + 1; | |
4882 | } | |
284f4730 | 4883 | |
0a7f1fc0 | 4884 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4885 | if (! (modifiers & (down_modifier | drag_modifier |
4886 | | double_modifier | triple_modifier)) | |
fc932ac6 | 4887 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 4888 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4889 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4890 | modifiers |= click_modifier; |
4891 | ||
4892 | if (modifier_end) | |
4893 | *modifier_end = i; | |
4894 | ||
4895 | return modifiers; | |
4896 | } | |
4897 | ||
0a7f1fc0 JB |
4898 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4899 | prepended to the string BASE[0..BASE_LEN-1]. | |
4900 | This doesn't use any caches. */ | |
4901 | static Lisp_Object | |
301738ed | 4902 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4903 | int modifiers; |
4904 | char *base; | |
301738ed | 4905 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4906 | { |
4907 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4908 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4909 | reference to it. */ | |
301738ed RS |
4910 | char *new_mods |
4911 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 4912 | int mod_len; |
284f4730 | 4913 | |
284f4730 | 4914 | { |
0a7f1fc0 JB |
4915 | char *p = new_mods; |
4916 | ||
4917 | /* Only the event queue may use the `up' modifier; it should always | |
4918 | be turned into a click or drag event before presented to lisp code. */ | |
4919 | if (modifiers & up_modifier) | |
4920 | abort (); | |
4921 | ||
4922 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
4923 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
4924 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
4925 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
4926 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 4927 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
4928 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
4929 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
4930 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
4931 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
4932 | /* The click modifier is denoted by the absence of other modifiers. */ |
4933 | ||
4934 | *p = '\0'; | |
4935 | ||
4936 | mod_len = p - new_mods; | |
4937 | } | |
284f4730 | 4938 | |
0a7f1fc0 | 4939 | { |
9b8eb840 | 4940 | Lisp_Object new_name; |
df0f2ba1 | 4941 | |
301738ed RS |
4942 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
4943 | mod_len + base_len_byte); | |
0a7f1fc0 | 4944 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 4945 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
4946 | |
4947 | return Fintern (new_name, Qnil); | |
4948 | } | |
4949 | } | |
4950 | ||
4951 | ||
0a7f1fc0 JB |
4952 | static char *modifier_names[] = |
4953 | { | |
fbcd35bd | 4954 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 4955 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 4956 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 4957 | }; |
80645119 | 4958 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
4959 | |
4960 | static Lisp_Object modifier_symbols; | |
4961 | ||
4962 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
4963 | static Lisp_Object | |
4964 | lispy_modifier_list (modifiers) | |
4965 | int modifiers; | |
4966 | { | |
4967 | Lisp_Object modifier_list; | |
4968 | int i; | |
4969 | ||
4970 | modifier_list = Qnil; | |
80645119 | 4971 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 4972 | if (modifiers & (1<<i)) |
80645119 JB |
4973 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
4974 | modifier_list); | |
0a7f1fc0 JB |
4975 | |
4976 | return modifier_list; | |
4977 | } | |
4978 | ||
4979 | ||
4980 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
4981 | where UNMODIFIED is the unmodified form of SYMBOL, | |
4982 | MASK is the set of modifiers present in SYMBOL's name. | |
4983 | This is similar to parse_modifiers_uncached, but uses the cache in | |
4984 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
4985 | Qevent_symbol_elements property. */ | |
3d31316f | 4986 | |
1161d367 | 4987 | Lisp_Object |
0a7f1fc0 JB |
4988 | parse_modifiers (symbol) |
4989 | Lisp_Object symbol; | |
4990 | { | |
9b8eb840 | 4991 | Lisp_Object elements; |
0a7f1fc0 | 4992 | |
9b8eb840 | 4993 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
4994 | if (CONSP (elements)) |
4995 | return elements; | |
4996 | else | |
4997 | { | |
4998 | int end; | |
ec0faad2 | 4999 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5000 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5001 | Lisp_Object mask; |
5002 | ||
9b8eb840 | 5003 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5004 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5005 | Qnil); |
5006 | ||
ec0faad2 | 5007 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 5008 | abort (); |
bb9e9bed | 5009 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5010 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5011 | ||
5012 | /* Cache the parsing results on SYMBOL. */ | |
5013 | Fput (symbol, Qevent_symbol_element_mask, | |
5014 | elements); | |
5015 | Fput (symbol, Qevent_symbol_elements, | |
5016 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5017 | ||
5018 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5019 | it would be nice to put that in unmodified's cache. | |
5020 | But we can't, since we're not sure that parse_modifiers is | |
5021 | canonical. */ | |
5022 | ||
5023 | return elements; | |
5024 | } | |
5025 | } | |
5026 | ||
5027 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5028 | BASE must be unmodified. | |
5029 | ||
5030 | This is like apply_modifiers_uncached, but uses BASE's | |
5031 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5032 | Qevent_symbol_elements properties, since it has that info anyway. |
5033 | ||
5034 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5035 | the modified symbol. */ | |
0a7f1fc0 JB |
5036 | static Lisp_Object |
5037 | apply_modifiers (modifiers, base) | |
5038 | int modifiers; | |
5039 | Lisp_Object base; | |
5040 | { | |
7b4aedb9 | 5041 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5042 | |
80645119 | 5043 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 5044 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 5045 | |
0a7f1fc0 | 5046 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5047 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5048 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5049 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5050 | |
5051 | if (CONSP (entry)) | |
7539e11f | 5052 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
5053 | else |
5054 | { | |
df0f2ba1 | 5055 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5056 | new_symbol = apply_modifiers_uncached (modifiers, |
5057 | XSYMBOL (base)->name->data, | |
301738ed | 5058 | XSYMBOL (base)->name->size, |
fc932ac6 | 5059 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5060 | |
5061 | /* Add the new symbol to the base's cache. */ | |
5062 | entry = Fcons (index, new_symbol); | |
5063 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5064 | ||
5065 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5066 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5067 | Fput (new_symbol, Qevent_symbol_element_mask, |
5068 | Fcons (base, Fcons (index, Qnil))); | |
5069 | Fput (new_symbol, Qevent_symbol_elements, | |
5070 | Fcons (base, lispy_modifier_list (modifiers))); | |
5071 | } | |
0a7f1fc0 | 5072 | |
df0f2ba1 | 5073 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5074 | |
5075 | You'd think we could just set this once and for all when we | |
5076 | intern the symbol above, but reorder_modifiers may call us when | |
5077 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5078 | because it has a Qmodifier_cache property it must have its |
5079 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5080 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5081 | { | |
9b8eb840 | 5082 | Lisp_Object kind; |
7b4aedb9 | 5083 | |
9b8eb840 | 5084 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5085 | if (! NILP (kind)) |
5086 | Fput (new_symbol, Qevent_kind, kind); | |
5087 | } | |
5088 | ||
5089 | return new_symbol; | |
0a7f1fc0 JB |
5090 | } |
5091 | ||
5092 | ||
5093 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5094 | return a symbol with the modifiers placed in the canonical order. | |
5095 | Canonical order is alphabetical, except for down and drag, which | |
5096 | always come last. The 'click' modifier is never written out. | |
5097 | ||
5098 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5099 | and M-C-foo end up being equivalent in the keymap. */ | |
5100 | ||
5101 | Lisp_Object | |
5102 | reorder_modifiers (symbol) | |
5103 | Lisp_Object symbol; | |
5104 | { | |
5105 | /* It's hopefully okay to write the code this way, since everything | |
5106 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5107 | Lisp_Object parsed; |
0a7f1fc0 | 5108 | |
9b8eb840 | 5109 | parsed = parse_modifiers (symbol); |
7539e11f KR |
5110 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
5111 | XCAR (parsed)); | |
0a7f1fc0 JB |
5112 | } |
5113 | ||
5114 | ||
284f4730 JB |
5115 | /* For handling events, we often want to produce a symbol whose name |
5116 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5117 | to some base, like the name of a function key or mouse button. | |
5118 | modify_event_symbol produces symbols of this sort. | |
5119 | ||
5120 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5121 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5122 | in the table. | |
5123 | ||
80e4aa30 RS |
5124 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
5125 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
5126 | ||
284f4730 JB |
5127 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5128 | persist between calls to modify_event_symbol that it can use to | |
5129 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5130 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5131 | |
5132 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5133 | |
284f4730 JB |
5134 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5135 | whose prefixes should be applied to the symbol name. | |
5136 | ||
5137 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5138 | the returned symbol. |
88cb0656 JB |
5139 | |
5140 | The symbols we create are supposed to have an | |
eb8c3be9 | 5141 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5142 | in the symbol's name. */ |
5143 | ||
284f4730 | 5144 | static Lisp_Object |
80e4aa30 RS |
5145 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
5146 | name_table, symbol_table, table_size) | |
284f4730 JB |
5147 | int symbol_num; |
5148 | unsigned modifiers; | |
5149 | Lisp_Object symbol_kind; | |
80e4aa30 | 5150 | Lisp_Object name_alist; |
284f4730 JB |
5151 | char **name_table; |
5152 | Lisp_Object *symbol_table; | |
2c834fb3 | 5153 | unsigned int table_size; |
284f4730 | 5154 | { |
80e4aa30 RS |
5155 | Lisp_Object value; |
5156 | Lisp_Object symbol_int; | |
5157 | ||
2c834fb3 KH |
5158 | /* Get rid of the "vendor-specific" bit here. */ |
5159 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5160 | |
5161 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5162 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5163 | return Qnil; |
284f4730 | 5164 | |
80e4aa30 RS |
5165 | if (CONSP (*symbol_table)) |
5166 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5167 | ||
0a7f1fc0 | 5168 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5169 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5170 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5171 | we've never used that symbol before. */ | |
80e4aa30 | 5172 | else |
88cb0656 | 5173 | { |
80e4aa30 RS |
5174 | if (! VECTORP (*symbol_table) |
5175 | || XVECTOR (*symbol_table)->size != table_size) | |
5176 | { | |
5177 | Lisp_Object size; | |
0a7f1fc0 | 5178 | |
bb9e9bed | 5179 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5180 | *symbol_table = Fmake_vector (size, Qnil); |
5181 | } | |
284f4730 | 5182 | |
80e4aa30 RS |
5183 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5184 | } | |
284f4730 | 5185 | |
0a7f1fc0 | 5186 | /* Have we already used this symbol before? */ |
80e4aa30 | 5187 | if (NILP (value)) |
284f4730 | 5188 | { |
0a7f1fc0 | 5189 | /* No; let's create it. */ |
80e4aa30 | 5190 | if (!NILP (name_alist)) |
b64b4075 | 5191 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 5192 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5193 | value = intern (name_table[symbol_num]); |
b64b4075 | 5194 | |
e98a93eb | 5195 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5196 | if (NILP (value)) |
5197 | { | |
5198 | char *name = x_get_keysym_name (symbol_num); | |
5199 | if (name) | |
5200 | value = intern (name); | |
5201 | } | |
5202 | #endif | |
5203 | ||
b64b4075 | 5204 | if (NILP (value)) |
d1f50460 RS |
5205 | { |
5206 | char buf[20]; | |
5207 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5208 | value = intern (buf); |
d1f50460 | 5209 | } |
0a7f1fc0 | 5210 | |
80e4aa30 | 5211 | if (CONSP (*symbol_table)) |
4205cb08 | 5212 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5213 | else |
5214 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5215 | ||
df0f2ba1 | 5216 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5217 | builds the Qevent_symbol_elements property, which the user |
5218 | cares about. */ | |
80e4aa30 RS |
5219 | apply_modifiers (modifiers & click_modifier, value); |
5220 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5221 | } |
88cb0656 | 5222 | |
0a7f1fc0 | 5223 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5224 | return apply_modifiers (modifiers, value); |
284f4730 | 5225 | } |
6da3dd3a RS |
5226 | \f |
5227 | /* Convert a list that represents an event type, | |
5228 | such as (ctrl meta backspace), into the usual representation of that | |
5229 | event type as a number or a symbol. */ | |
5230 | ||
a1706c30 | 5231 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5232 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5233 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5234 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5235 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5236 | The return value is an event type (a character or symbol) which\n\ |
5237 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5238 | (event_desc) |
5239 | Lisp_Object event_desc; | |
6da3dd3a RS |
5240 | { |
5241 | Lisp_Object base; | |
5242 | int modifiers = 0; | |
5243 | Lisp_Object rest; | |
5244 | ||
5245 | base = Qnil; | |
e57d8fd8 | 5246 | rest = event_desc; |
6da3dd3a RS |
5247 | while (CONSP (rest)) |
5248 | { | |
5249 | Lisp_Object elt; | |
5250 | int this = 0; | |
5251 | ||
7539e11f KR |
5252 | elt = XCAR (rest); |
5253 | rest = XCDR (rest); | |
6da3dd3a | 5254 | |
3d31316f | 5255 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5256 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5257 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5258 | |
5259 | if (this != 0) | |
5260 | modifiers |= this; | |
5261 | else if (!NILP (base)) | |
5262 | error ("Two bases given in one event"); | |
5263 | else | |
5264 | base = elt; | |
5265 | ||
6da3dd3a RS |
5266 | } |
5267 | ||
3d31316f RS |
5268 | /* Let the symbol A refer to the character A. */ |
5269 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5270 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5271 | ||
6da3dd3a RS |
5272 | if (INTEGERP (base)) |
5273 | { | |
3d31316f RS |
5274 | /* Turn (shift a) into A. */ |
5275 | if ((modifiers & shift_modifier) != 0 | |
5276 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5277 | { | |
5278 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5279 | modifiers &= ~shift_modifier; | |
5280 | } | |
5281 | ||
5282 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5283 | if (modifiers & ctrl_modifier) |
3d31316f | 5284 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5285 | | make_ctrl_char (XINT (base))); |
5286 | else | |
5287 | return make_number (modifiers | XINT (base)); | |
5288 | } | |
5289 | else if (SYMBOLP (base)) | |
5290 | return apply_modifiers (modifiers, base); | |
5291 | else | |
5292 | error ("Invalid base event"); | |
5293 | } | |
5294 | ||
3d31316f RS |
5295 | /* Try to recognize SYMBOL as a modifier name. |
5296 | Return the modifier flag bit, or 0 if not recognized. */ | |
5297 | ||
5298 | static int | |
5299 | parse_solitary_modifier (symbol) | |
5300 | Lisp_Object symbol; | |
5301 | { | |
5302 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5303 | ||
5304 | switch (name->data[0]) | |
5305 | { | |
5306 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5307 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5308 | return BIT; |
5309 | ||
5310 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5311 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5312 | && ! strncmp (name->data, NAME, LEN)) \ |
5313 | return BIT; | |
5314 | ||
5315 | case 'A': | |
5316 | SINGLE_LETTER_MOD (alt_modifier); | |
5317 | break; | |
5318 | ||
5319 | case 'a': | |
5320 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5321 | break; | |
5322 | ||
5323 | case 'C': | |
5324 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5325 | break; | |
5326 | ||
5327 | case 'c': | |
5328 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5329 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5330 | break; | |
5331 | ||
5332 | case 'H': | |
5333 | SINGLE_LETTER_MOD (hyper_modifier); | |
5334 | break; | |
5335 | ||
5336 | case 'h': | |
5337 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5338 | break; | |
5339 | ||
5340 | case 'M': | |
5341 | SINGLE_LETTER_MOD (meta_modifier); | |
5342 | break; | |
5343 | ||
5344 | case 'm': | |
5345 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5346 | break; | |
5347 | ||
5348 | case 'S': | |
5349 | SINGLE_LETTER_MOD (shift_modifier); | |
5350 | break; | |
5351 | ||
5352 | case 's': | |
5353 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5354 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5355 | SINGLE_LETTER_MOD (super_modifier); | |
5356 | break; | |
5357 | ||
5358 | case 'd': | |
5359 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5360 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5361 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5362 | break; | |
5363 | ||
5364 | case 't': | |
5365 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5366 | break; | |
5367 | ||
5368 | #undef SINGLE_LETTER_MOD | |
5369 | #undef MULTI_LETTER_MOD | |
5370 | } | |
5371 | ||
5372 | return 0; | |
5373 | } | |
5374 | ||
6da3dd3a RS |
5375 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5376 | Such a list is not valid as an event, | |
5377 | but it can be a Lucid-style event type list. */ | |
5378 | ||
5379 | int | |
5380 | lucid_event_type_list_p (object) | |
5381 | Lisp_Object object; | |
5382 | { | |
5383 | Lisp_Object tail; | |
5384 | ||
5385 | if (! CONSP (object)) | |
5386 | return 0; | |
5387 | ||
7539e11f | 5388 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
5389 | { |
5390 | Lisp_Object elt; | |
7539e11f | 5391 | elt = XCAR (tail); |
6da3dd3a RS |
5392 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
5393 | return 0; | |
5394 | } | |
5395 | ||
5396 | return NILP (tail); | |
5397 | } | |
284f4730 | 5398 | \f |
284f4730 JB |
5399 | /* Store into *addr a value nonzero if terminal input chars are available. |
5400 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5401 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5402 | (In fact, this may actually read some input.) |
5403 | ||
5404 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5405 | |
5406 | static void | |
d9d4c147 | 5407 | get_input_pending (addr, do_timers_now) |
284f4730 | 5408 | int *addr; |
d9d4c147 | 5409 | int do_timers_now; |
284f4730 JB |
5410 | { |
5411 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5412 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5413 | |
5414 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5415 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5416 | return; | |
5417 | ||
5418 | /* Try to read some input and see how much we get. */ | |
5419 | gobble_input (0); | |
d9d4c147 | 5420 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5421 | } |
5422 | ||
81931ba1 | 5423 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 5424 | |
07a59269 | 5425 | void |
284f4730 JB |
5426 | gobble_input (expected) |
5427 | int expected; | |
5428 | { | |
5429 | #ifndef VMS | |
5430 | #ifdef SIGIO | |
5431 | if (interrupt_input) | |
5432 | { | |
32676c08 | 5433 | SIGMASKTYPE mask; |
4f8aaa74 | 5434 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 5435 | read_avail_input (expected); |
e065a56e | 5436 | sigsetmask (mask); |
284f4730 JB |
5437 | } |
5438 | else | |
81931ba1 RS |
5439 | #ifdef POLL_FOR_INPUT |
5440 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
5441 | { | |
5442 | SIGMASKTYPE mask; | |
4f8aaa74 | 5443 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
5444 | read_avail_input (expected); |
5445 | sigsetmask (mask); | |
5446 | } | |
5447 | else | |
87485d6f | 5448 | #endif |
284f4730 JB |
5449 | #endif |
5450 | read_avail_input (expected); | |
5451 | #endif | |
5452 | } | |
a8015ab5 | 5453 | |
241ceaf7 RS |
5454 | /* Put a buffer_switch_event in the buffer |
5455 | so that read_key_sequence will notice the new current buffer. */ | |
5456 | ||
07a59269 | 5457 | void |
a8015ab5 KH |
5458 | record_asynch_buffer_change () |
5459 | { | |
5460 | struct input_event event; | |
a30f0615 RS |
5461 | Lisp_Object tem; |
5462 | ||
a8015ab5 KH |
5463 | event.kind = buffer_switch_event; |
5464 | event.frame_or_window = Qnil; | |
241ceaf7 | 5465 | |
f65e6f7d | 5466 | #ifdef subprocesses |
a30f0615 RS |
5467 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
5468 | The purpose of the event is to make read_key_sequence look up the | |
5469 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
5470 | and the event could cause trouble by messing up (input-pending-p). */ | |
5471 | tem = Fwaiting_for_user_input_p (); | |
5472 | if (NILP (tem)) | |
5473 | return; | |
f65e6f7d RS |
5474 | #else |
5475 | /* We never need these events if we have no asynchronous subprocesses. */ | |
5476 | return; | |
5477 | #endif | |
a30f0615 | 5478 | |
241ceaf7 RS |
5479 | /* Make sure no interrupt happens while storing the event. */ |
5480 | #ifdef SIGIO | |
5481 | if (interrupt_input) | |
5482 | { | |
5483 | SIGMASKTYPE mask; | |
4f8aaa74 | 5484 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
5485 | kbd_buffer_store_event (&event); |
5486 | sigsetmask (mask); | |
5487 | } | |
5488 | else | |
5489 | #endif | |
5490 | { | |
5491 | stop_polling (); | |
5492 | kbd_buffer_store_event (&event); | |
5493 | start_polling (); | |
5494 | } | |
a8015ab5 | 5495 | } |
284f4730 JB |
5496 | \f |
5497 | #ifndef VMS | |
5498 | ||
5499 | /* Read any terminal input already buffered up by the system | |
5500 | into the kbd_buffer, but do not wait. | |
5501 | ||
5502 | EXPECTED should be nonzero if the caller knows there is some input. | |
5503 | ||
5504 | Except on VMS, all input is read by this function. | |
5505 | If interrupt_input is nonzero, this function MUST be called | |
5506 | only when SIGIO is blocked. | |
5507 | ||
5508 | Returns the number of keyboard chars read, or -1 meaning | |
5509 | this is a bad time to try to read input. */ | |
5510 | ||
5511 | static int | |
5512 | read_avail_input (expected) | |
5513 | int expected; | |
5514 | { | |
5515 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5516 | register int i; | |
5517 | int nread; | |
5518 | ||
5519 | if (read_socket_hook) | |
5520 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5521 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5522 | else |
5523 | { | |
17270835 RS |
5524 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5525 | the kbd_buffer can really hold. That may prevent loss | |
5526 | of characters on some systems when input is stuffed at us. */ | |
5527 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5528 | int n_to_read; |
284f4730 | 5529 | |
58788063 | 5530 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5531 | #ifdef WINDOWSNT |
5532 | return 0; | |
5533 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5534 | #ifdef MSDOS |
58788063 RS |
5535 | n_to_read = dos_keysns (); |
5536 | if (n_to_read == 0) | |
5537 | return 0; | |
c3a2738c | 5538 | #else /* not MSDOS */ |
284f4730 JB |
5539 | #ifdef FIONREAD |
5540 | /* Find out how much input is available. */ | |
437f6112 | 5541 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5542 | /* Formerly simply reported no input, but that sometimes led to |
5543 | a failure of Emacs to terminate. | |
5544 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5545 | /* ??? Is it really right to send the signal just to this process |
5546 | rather than to the whole process group? | |
5547 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5548 | kill (getpid (), SIGHUP); |
58788063 | 5549 | if (n_to_read == 0) |
284f4730 | 5550 | return 0; |
58788063 RS |
5551 | if (n_to_read > sizeof cbuf) |
5552 | n_to_read = sizeof cbuf; | |
284f4730 | 5553 | #else /* no FIONREAD */ |
0c04a67e | 5554 | #if defined (USG) || defined (DGUX) |
284f4730 | 5555 | /* Read some input if available, but don't wait. */ |
58788063 | 5556 | n_to_read = sizeof cbuf; |
437f6112 | 5557 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5558 | #else |
5559 | you lose; | |
5560 | #endif | |
5561 | #endif | |
80e4aa30 | 5562 | #endif /* not MSDOS */ |
bc536d84 | 5563 | #endif /* not WINDOWSNT */ |
284f4730 | 5564 | |
58788063 RS |
5565 | /* Now read; for one reason or another, this will not block. |
5566 | NREAD is set to the number of chars read. */ | |
9134775b | 5567 | do |
284f4730 | 5568 | { |
80e4aa30 | 5569 | #ifdef MSDOS |
0c04a67e | 5570 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5571 | nread = 1; |
5572 | #else | |
68c45bf0 | 5573 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5574 | #endif |
49854566 RS |
5575 | /* POSIX infers that processes which are not in the session leader's |
5576 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 5577 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
5578 | when the control tty is taken away. |
5579 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5580 | if (nread == -1 && errno == EIO) | |
5581 | kill (0, SIGHUP); | |
762f2b92 | 5582 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5583 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5584 | This looks incorrect, but it isn't, because _BSD causes | |
5585 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5586 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5587 | if (nread == 0) |
80e4aa30 | 5588 | kill (0, SIGHUP); |
284f4730 | 5589 | #endif |
9134775b | 5590 | } |
791587ee KH |
5591 | while ( |
5592 | /* We used to retry the read if it was interrupted. | |
5593 | But this does the wrong thing when O_NDELAY causes | |
5594 | an EAGAIN error. Does anybody know of a situation | |
5595 | where a retry is actually needed? */ | |
5596 | #if 0 | |
5597 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5598 | #ifdef EFAULT |
9134775b | 5599 | || errno == EFAULT |
80e4aa30 | 5600 | #endif |
284f4730 | 5601 | #ifdef EBADSLT |
9134775b | 5602 | || errno == EBADSLT |
284f4730 | 5603 | #endif |
791587ee KH |
5604 | ) |
5605 | #else | |
5606 | 0 | |
5607 | #endif | |
5608 | ); | |
284f4730 JB |
5609 | |
5610 | #ifndef FIONREAD | |
02c2c53f | 5611 | #if defined (USG) || defined (DGUX) |
437f6112 | 5612 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5613 | #endif /* USG or DGUX */ |
284f4730 JB |
5614 | #endif /* no FIONREAD */ |
5615 | for (i = 0; i < nread; i++) | |
5616 | { | |
5617 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5618 | buf[i].modifiers = 0; |
b04904fb | 5619 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5620 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5621 | if (meta_key != 2) |
5622 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5623 | |
5624 | buf[i].code = cbuf[i]; | |
788f89eb | 5625 | buf[i].frame_or_window = selected_frame; |
284f4730 JB |
5626 | } |
5627 | } | |
5628 | ||
5629 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5630 | for (i = 0; i < nread; i++) | |
5631 | { | |
5632 | kbd_buffer_store_event (&buf[i]); | |
5633 | /* Don't look at input that follows a C-g too closely. | |
5634 | This reduces lossage due to autorepeat on C-g. */ | |
5635 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5636 | && buf[i].code == quit_char) |
284f4730 JB |
5637 | break; |
5638 | } | |
5639 | ||
5640 | return nread; | |
5641 | } | |
5642 | #endif /* not VMS */ | |
5643 | \f | |
5644 | #ifdef SIGIO /* for entire page */ | |
5645 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5646 | ||
2ce30ea2 | 5647 | SIGTYPE |
284f4730 JB |
5648 | input_available_signal (signo) |
5649 | int signo; | |
5650 | { | |
5651 | /* Must preserve main program's value of errno. */ | |
5652 | int old_errno = errno; | |
5653 | #ifdef BSD4_1 | |
5654 | extern int select_alarmed; | |
5655 | #endif | |
5656 | ||
5970a8cb | 5657 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5658 | /* USG systems forget handlers when they are used; |
5659 | must reestablish each time */ | |
5660 | signal (signo, input_available_signal); | |
5661 | #endif /* USG */ | |
5662 | ||
5663 | #ifdef BSD4_1 | |
5664 | sigisheld (SIGIO); | |
5665 | #endif | |
5666 | ||
ffd56f97 JB |
5667 | if (input_available_clear_time) |
5668 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5669 | |
5670 | while (1) | |
5671 | { | |
5672 | int nread; | |
5673 | nread = read_avail_input (1); | |
5674 | /* -1 means it's not ok to read the input now. | |
5675 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5676 | 0 means there was no keyboard input available. */ | |
5677 | if (nread <= 0) | |
5678 | break; | |
5679 | ||
5680 | #ifdef BSD4_1 | |
5681 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5682 | #endif | |
5683 | } | |
5684 | ||
5685 | #ifdef BSD4_1 | |
5686 | sigfree (); | |
5687 | #endif | |
5688 | errno = old_errno; | |
5689 | } | |
5690 | #endif /* SIGIO */ | |
ad163903 JB |
5691 | |
5692 | /* Send ourselves a SIGIO. | |
5693 | ||
5694 | This function exists so that the UNBLOCK_INPUT macro in | |
5695 | blockinput.h can have some way to take care of input we put off | |
5696 | dealing with, without assuming that every file which uses | |
5697 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5698 | void | |
5699 | reinvoke_input_signal () | |
5700 | { | |
df0f2ba1 | 5701 | #ifdef SIGIO |
87dd9b9b | 5702 | kill (getpid (), SIGIO); |
ad163903 JB |
5703 | #endif |
5704 | } | |
5705 | ||
5706 | ||
284f4730 JB |
5707 | \f |
5708 | /* Return the prompt-string of a sparse keymap. | |
5709 | This is the first element which is a string. | |
5710 | Return nil if there is none. */ | |
5711 | ||
5712 | Lisp_Object | |
5713 | map_prompt (map) | |
5714 | Lisp_Object map; | |
5715 | { | |
5716 | while (CONSP (map)) | |
5717 | { | |
5718 | register Lisp_Object tem; | |
5719 | tem = Fcar (map); | |
8c18cbfb | 5720 | if (STRINGP (tem)) |
284f4730 JB |
5721 | return tem; |
5722 | map = Fcdr (map); | |
5723 | } | |
5724 | return Qnil; | |
5725 | } | |
5726 | ||
b7c49376 RS |
5727 | static void menu_bar_item (); |
5728 | static void menu_bar_one_keymap (); | |
5729 | ||
5730 | /* These variables hold the vector under construction within | |
5731 | menu_bar_items and its subroutines, and the current index | |
5732 | for storing into that vector. */ | |
5733 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5734 | static int menu_bar_items_index; |
5ec75a55 | 5735 | |
b7c49376 RS |
5736 | /* Return a vector of menu items for a menu bar, appropriate |
5737 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5738 | KEY STRING MAPLIST. |
b7c49376 RS |
5739 | |
5740 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5741 | |
5742 | Lisp_Object | |
b7c49376 RS |
5743 | menu_bar_items (old) |
5744 | Lisp_Object old; | |
5ec75a55 RS |
5745 | { |
5746 | /* The number of keymaps we're scanning right now, and the number of | |
5747 | keymaps we have allocated space for. */ | |
5748 | int nmaps; | |
5749 | ||
5750 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5751 | in the current keymaps, or nil where it is not a prefix. */ | |
5752 | Lisp_Object *maps; | |
5753 | ||
9f9c0e27 | 5754 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5755 | |
5756 | Lisp_Object result; | |
5757 | ||
5758 | int mapno; | |
47d319aa | 5759 | Lisp_Object oquit; |
5ec75a55 | 5760 | |
b7c49376 RS |
5761 | int i; |
5762 | ||
5763 | struct gcpro gcpro1; | |
5764 | ||
db60d856 JB |
5765 | /* In order to build the menus, we need to call the keymap |
5766 | accessors. They all call QUIT. But this function is called | |
5767 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5768 | quitting while building the menus. |
5769 | We do this instead of specbind because (1) errors will clear it anyway | |
5770 | and (2) this avoids risk of specpdl overflow. */ | |
5771 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5772 | Vinhibit_quit = Qt; |
db60d856 | 5773 | |
b7c49376 RS |
5774 | if (!NILP (old)) |
5775 | menu_bar_items_vector = old; | |
5776 | else | |
5777 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5778 | menu_bar_items_index = 0; | |
5779 | ||
5780 | GCPRO1 (menu_bar_items_vector); | |
5781 | ||
5ec75a55 RS |
5782 | /* Build our list of keymaps. |
5783 | If we recognize a function key and replace its escape sequence in | |
5784 | keybuf with its symbol, or if the sequence starts with a mouse | |
5785 | click and we need to switch buffers, we jump back here to rebuild | |
5786 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5787 | { |
5ec75a55 RS |
5788 | Lisp_Object *tmaps; |
5789 | ||
217258d5 | 5790 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5791 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5792 | { |
217258d5 KH |
5793 | /* Yes, use them (if non-nil) as well as the global map. */ |
5794 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5795 | nmaps = 0; | |
5796 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5797 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5798 | if (!NILP (Voverriding_local_map)) | |
5799 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5800 | } |
5801 | else | |
5802 | { | |
d0a49716 | 5803 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5804 | nmaps = current_minor_maps (NULL, &tmaps); |
5805 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5806 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
217258d5 | 5807 | maps[nmaps++] = get_local_map (PT, current_buffer); |
9dd3131c | 5808 | } |
217258d5 | 5809 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5810 | } |
5811 | ||
5812 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5813 | ||
5814 | result = Qnil; | |
5815 | ||
e58aa385 | 5816 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5817 | { |
5818 | if (! NILP (maps[mapno])) | |
c6a67acd | 5819 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5820 | else |
5821 | def = Qnil; | |
5822 | ||
5823 | tem = Fkeymapp (def); | |
5824 | if (!NILP (tem)) | |
b7c49376 | 5825 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5826 | } |
5827 | ||
b7c49376 RS |
5828 | /* Move to the end those items that should be at the end. */ |
5829 | ||
7539e11f | 5830 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 5831 | { |
b7c49376 RS |
5832 | int i; |
5833 | int end = menu_bar_items_index; | |
5834 | ||
35b3402f | 5835 | for (i = 0; i < end; i += 4) |
7539e11f | 5836 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 5837 | { |
35b3402f | 5838 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5839 | /* Move the item at index I to the end, |
5840 | shifting all the others forward. */ | |
5841 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5842 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5843 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5844 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5845 | if (end > i + 4) | |
5846 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5847 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5848 | (end - i - 4) * sizeof (Lisp_Object)); |
5849 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5850 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5851 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5852 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5853 | break; |
b7c49376 RS |
5854 | } |
5855 | } | |
9f9c0e27 | 5856 | |
0c9071cd | 5857 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5858 | i = menu_bar_items_index; |
35b3402f | 5859 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5860 | { |
5861 | Lisp_Object tem; | |
b7c49376 RS |
5862 | tem = Fmake_vector (make_number (2 * i), Qnil); |
5863 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5864 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5865 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5866 | } |
b7c49376 RS |
5867 | /* Add this item. */ |
5868 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5869 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5870 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5871 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5872 | menu_bar_items_index = i; |
a73c5e29 | 5873 | |
47d319aa | 5874 | Vinhibit_quit = oquit; |
b7c49376 RS |
5875 | UNGCPRO; |
5876 | return menu_bar_items_vector; | |
5ec75a55 RS |
5877 | } |
5878 | \f | |
5879 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5880 | in menu_bar_items_vector. */ |
5ec75a55 | 5881 | |
759860a6 RS |
5882 | static Lisp_Object menu_bar_one_keymap_changed_items; |
5883 | ||
b7c49376 RS |
5884 | static void |
5885 | menu_bar_one_keymap (keymap) | |
5886 | Lisp_Object keymap; | |
5ec75a55 | 5887 | { |
03cee6ae | 5888 | Lisp_Object tail, item; |
5ec75a55 | 5889 | |
759860a6 RS |
5890 | menu_bar_one_keymap_changed_items = Qnil; |
5891 | ||
5ec75a55 | 5892 | /* Loop over all keymap entries that have menu strings. */ |
7539e11f | 5893 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
5ec75a55 | 5894 | { |
7539e11f | 5895 | item = XCAR (tail); |
8c18cbfb | 5896 | if (CONSP (item)) |
7539e11f | 5897 | menu_bar_item (XCAR (item), XCDR (item)); |
8c18cbfb | 5898 | else if (VECTORP (item)) |
5ec75a55 RS |
5899 | { |
5900 | /* Loop over the char values represented in the vector. */ | |
5901 | int len = XVECTOR (item)->size; | |
5902 | int c; | |
5903 | for (c = 0; c < len; c++) | |
5904 | { | |
5905 | Lisp_Object character; | |
bb9e9bed | 5906 | XSETFASTINT (character, c); |
e8886a1d | 5907 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
5908 | } |
5909 | } | |
5910 | } | |
5ec75a55 RS |
5911 | } |
5912 | ||
f5e09c8b RS |
5913 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5914 | If there's already an item for KEY, add this DEF to it. */ | |
5915 | ||
e8886a1d RS |
5916 | Lisp_Object item_properties; |
5917 | ||
b7c49376 | 5918 | static void |
e8886a1d RS |
5919 | menu_bar_item (key, item) |
5920 | Lisp_Object key, item; | |
5ec75a55 | 5921 | { |
e8886a1d | 5922 | struct gcpro gcpro1; |
b7c49376 | 5923 | int i; |
759860a6 | 5924 | Lisp_Object tem; |
5ec75a55 | 5925 | |
e8886a1d | 5926 | if (EQ (item, Qundefined)) |
e58aa385 | 5927 | { |
f5e09c8b | 5928 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 5929 | discard any previously made menu bar item. */ |
b7c49376 | 5930 | |
35b3402f | 5931 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5932 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5933 | { | |
35b3402f RS |
5934 | if (menu_bar_items_index > i + 4) |
5935 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 5936 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5937 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
5938 | menu_bar_items_index -= 4; | |
b7c49376 RS |
5939 | return; |
5940 | } | |
8aa034e1 RS |
5941 | |
5942 | /* If there's no definition for this key yet, | |
5943 | just ignore `undefined'. */ | |
5944 | return; | |
e58aa385 RS |
5945 | } |
5946 | ||
e8886a1d RS |
5947 | GCPRO1 (key); /* Is this necessary? */ |
5948 | i = parse_menu_item (item, 0, 1); | |
5949 | UNGCPRO; | |
5950 | if (!i) | |
b7c49376 | 5951 | return; |
5ec75a55 | 5952 | |
759860a6 RS |
5953 | /* If this keymap has already contributed to this KEY, |
5954 | don't contribute to it a second time. */ | |
5955 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
5956 | if (!NILP (tem)) | |
5957 | return; | |
5958 | ||
5959 | menu_bar_one_keymap_changed_items | |
5960 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
5961 | ||
e8886a1d RS |
5962 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
5963 | ||
f5e09c8b | 5964 | /* Find any existing item for this KEY. */ |
35b3402f | 5965 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5966 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5967 | break; | |
5968 | ||
f5e09c8b | 5969 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
5970 | if (i == menu_bar_items_index) |
5971 | { | |
5972 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 5973 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5974 | { |
5975 | Lisp_Object tem; | |
b7c49376 RS |
5976 | tem = Fmake_vector (make_number (2 * i), Qnil); |
5977 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5978 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5979 | menu_bar_items_vector = tem; | |
5980 | } | |
e8886a1d | 5981 | |
b7c49376 RS |
5982 | /* Add this item. */ |
5983 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
5984 | XVECTOR (menu_bar_items_vector)->contents[i++] |
5985 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
5986 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 5987 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
5988 | menu_bar_items_index = i; |
5989 | } | |
e8886a1d | 5990 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
5991 | else |
5992 | { | |
5993 | Lisp_Object old; | |
5994 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 5995 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 5996 | } |
5ec75a55 RS |
5997 | } |
5998 | \f | |
e8886a1d RS |
5999 | /* This is used as the handler when calling menu_item_eval_property. */ |
6000 | static Lisp_Object | |
6001 | menu_item_eval_property_1 (arg) | |
6002 | Lisp_Object arg; | |
6003 | { | |
6004 | /* If we got a quit from within the menu computation, | |
6005 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 6006 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
6007 | Fsignal (Qquit, Qnil); |
6008 | ||
6009 | return Qnil; | |
6010 | } | |
6011 | ||
6012 | /* Evaluate an expression and return the result (or nil if something | |
6013 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6014 | Lisp_Object |
e8886a1d RS |
6015 | menu_item_eval_property (sexpr) |
6016 | Lisp_Object sexpr; | |
6017 | { | |
44e553a3 | 6018 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6019 | Lisp_Object val; |
44e553a3 | 6020 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6021 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6022 | menu_item_eval_property_1); | |
44e553a3 | 6023 | return unbind_to (count, val); |
e8886a1d RS |
6024 | } |
6025 | ||
6026 | /* This function parses a menu item and leaves the result in the | |
6027 | vector item_properties. | |
6028 | ITEM is a key binding, a possible menu item. | |
6029 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6030 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6031 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6032 | top level. |
fd3613d7 | 6033 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6034 | parse_menu_item returns true if the item is a menu item and false |
6035 | otherwise. */ | |
6036 | ||
6037 | int | |
6038 | parse_menu_item (item, notreal, inmenubar) | |
6039 | Lisp_Object item; | |
6040 | int notreal, inmenubar; | |
6041 | { | |
adc1d5c8 | 6042 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6043 | Lisp_Object cachelist; |
6044 | Lisp_Object filter; | |
6045 | Lisp_Object keyhint; | |
e8886a1d | 6046 | int i; |
74c1de23 RS |
6047 | int newcache = 0; |
6048 | ||
07ba902e RS |
6049 | cachelist = Qnil; |
6050 | filter = Qnil; | |
6051 | keyhint = Qnil; | |
6052 | ||
e8886a1d RS |
6053 | if (!CONSP (item)) |
6054 | return 0; | |
6055 | ||
e8886a1d RS |
6056 | /* Create item_properties vector if necessary. */ |
6057 | if (NILP (item_properties)) | |
6058 | item_properties | |
6059 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6060 | ||
6061 | /* Initialize optional entries. */ | |
6062 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
6063 | XVECTOR (item_properties)->contents[i] = Qnil; | |
6064 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = Qt; | |
6065 | ||
6066 | /* Save the item here to protect it from GC. */ | |
6067 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ITEM] = item; | |
6068 | ||
7539e11f | 6069 | item_string = XCAR (item); |
e8886a1d RS |
6070 | |
6071 | start = item; | |
7539e11f | 6072 | item = XCDR (item); |
e8886a1d RS |
6073 | if (STRINGP (item_string)) |
6074 | { | |
6075 | /* Old format menu item. */ | |
6076 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; | |
6077 | ||
6078 | /* Maybe help string. */ | |
7539e11f | 6079 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d RS |
6080 | { |
6081 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6082 | = XCAR (item); |
e8886a1d | 6083 | start = item; |
7539e11f | 6084 | item = XCDR (item); |
e8886a1d RS |
6085 | } |
6086 | ||
6087 | /* Maybee key binding cache. */ | |
7539e11f KR |
6088 | if (CONSP (item) && CONSP (XCAR (item)) |
6089 | && (NILP (XCAR (XCAR (item))) | |
6090 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 6091 | { |
7539e11f KR |
6092 | cachelist = XCAR (item); |
6093 | item = XCDR (item); | |
e8886a1d RS |
6094 | } |
6095 | ||
6096 | /* This is the real definition--the function to run. */ | |
6097 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = item; | |
6098 | ||
6099 | /* Get enable property, if any. */ | |
6100 | if (SYMBOLP (item)) | |
6101 | { | |
6102 | tem = Fget (item, Qmenu_enable); | |
6103 | if (!NILP (tem)) | |
6104 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; | |
6105 | } | |
6106 | } | |
6107 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6108 | { | |
6109 | /* New format menu item. */ | |
6110 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] | |
7539e11f KR |
6111 | = XCAR (item); |
6112 | start = XCDR (item); | |
e8886a1d RS |
6113 | if (CONSP (start)) |
6114 | { | |
6115 | /* We have a real binding. */ | |
6116 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] | |
7539e11f | 6117 | = XCAR (start); |
e8886a1d | 6118 | |
7539e11f | 6119 | item = XCDR (start); |
e8886a1d | 6120 | /* Is there a cache list with key equivalences. */ |
7539e11f | 6121 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 6122 | { |
7539e11f KR |
6123 | cachelist = XCAR (item); |
6124 | item = XCDR (item); | |
e8886a1d RS |
6125 | } |
6126 | ||
6127 | /* Parse properties. */ | |
7539e11f | 6128 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 6129 | { |
7539e11f KR |
6130 | tem = XCAR (item); |
6131 | item = XCDR (item); | |
e8886a1d RS |
6132 | |
6133 | if (EQ (tem, QCenable)) | |
6134 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] | |
7539e11f | 6135 | = XCAR (item); |
e8886a1d RS |
6136 | else if (EQ (tem, QCvisible) && !notreal) |
6137 | { | |
6138 | /* If got a visible property and that evaluates to nil | |
6139 | then ignore this item. */ | |
7539e11f | 6140 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 6141 | if (NILP (tem)) |
adc1d5c8 | 6142 | return 0; |
e8886a1d RS |
6143 | } |
6144 | else if (EQ (tem, QChelp)) | |
6145 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
7539e11f | 6146 | = XCAR (item); |
e8886a1d | 6147 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
6148 | filter = item; |
6149 | else if (EQ (tem, QCkey_sequence)) | |
6150 | { | |
7539e11f | 6151 | tem = XCAR (item); |
74c1de23 RS |
6152 | if (NILP (cachelist) |
6153 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6154 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6155 | keyhint = item; | |
6156 | } | |
6157 | else if (EQ (tem, QCkeys)) | |
6158 | { | |
7539e11f | 6159 | tem = XCAR (item); |
03cee6ae | 6160 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
74c1de23 RS |
6161 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] |
6162 | = tem; | |
6163 | } | |
7539e11f | 6164 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 6165 | { |
74c1de23 | 6166 | Lisp_Object type; |
7539e11f KR |
6167 | tem = XCAR (item); |
6168 | type = XCAR (tem); | |
e8886a1d RS |
6169 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
6170 | { | |
6171 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
7539e11f | 6172 | = XCDR (tem); |
e8886a1d RS |
6173 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE] |
6174 | = type; | |
6175 | } | |
6176 | } | |
7539e11f | 6177 | item = XCDR (item); |
e8886a1d RS |
6178 | } |
6179 | } | |
6180 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6181 | return 0; |
e8886a1d RS |
6182 | } |
6183 | else | |
adc1d5c8 | 6184 | return 0; /* not a menu item */ |
e8886a1d RS |
6185 | |
6186 | /* If item string is not a string, evaluate it to get string. | |
6187 | If we don't get a string, skip this item. */ | |
6188 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6189 | if (!(STRINGP (item_string) || notreal)) | |
6190 | { | |
6191 | item_string = menu_item_eval_property (item_string); | |
6192 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6193 | return 0; |
e8886a1d RS |
6194 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; |
6195 | } | |
6196 | ||
6197 | /* If got a filter apply it on definition. */ | |
6198 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; | |
6199 | if (!NILP (filter)) | |
6200 | { | |
7539e11f | 6201 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
6202 | list2 (Qquote, def))); |
6203 | ||
e8886a1d RS |
6204 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = def; |
6205 | } | |
6206 | ||
6207 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6208 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6209 | if (NILP (def)) |
adc1d5c8 | 6210 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6211 | |
6212 | /* Enable or disable selection of item. */ | |
6213 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; | |
6214 | if (!EQ (tem, Qt)) | |
6215 | { | |
6216 | if (notreal) | |
6217 | tem = Qt; | |
6218 | else | |
6219 | tem = menu_item_eval_property (tem); | |
6220 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6221 | return 0; /* Ignore disabled items in menu bar. */ |
e8886a1d RS |
6222 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; |
6223 | } | |
6224 | ||
6225 | /* See if this is a separate pane or a submenu. */ | |
74c1de23 | 6226 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
e8886a1d | 6227 | tem = get_keymap_1 (def, 0, 1); |
9ac425d1 | 6228 | /* For a subkeymap, just record its details and exit. */ |
e8886a1d RS |
6229 | if (!NILP (tem)) |
6230 | { | |
6231 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP] = tem; | |
6232 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = tem; | |
e8886a1d RS |
6233 | return 1; |
6234 | } | |
9ac425d1 RS |
6235 | /* At the top level in the menu bar, do likewise for commands also. |
6236 | The menu bar does not display equivalent key bindings anyway. | |
6237 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6238 | if (inmenubar > 0) | |
6239 | return 1; | |
e8886a1d RS |
6240 | |
6241 | /* This is a command. See if there is an equivalent key binding. */ | |
6242 | if (NILP (cachelist)) | |
6243 | { | |
74c1de23 | 6244 | /* We have to create a cachelist. */ |
e8886a1d | 6245 | CHECK_IMPURE (start); |
7539e11f KR |
6246 | XCDR (start) = Fcons (Fcons (Qnil, Qnil), XCDR (start)); |
6247 | cachelist = XCAR (XCDR (start)); | |
74c1de23 RS |
6248 | newcache = 1; |
6249 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6250 | if (!NILP (keyhint)) | |
6251 | { | |
7539e11f | 6252 | XCAR (cachelist) = XCAR (keyhint); |
74c1de23 RS |
6253 | newcache = 0; |
6254 | } | |
6255 | else if (STRINGP (tem)) | |
6256 | { | |
7539e11f KR |
6257 | XCDR (cachelist) = Fsubstitute_command_keys (tem); |
6258 | XCAR (cachelist) = Qt; | |
74c1de23 RS |
6259 | } |
6260 | } | |
7539e11f | 6261 | tem = XCAR (cachelist); |
74c1de23 RS |
6262 | if (!EQ (tem, Qt)) |
6263 | { | |
6264 | int chkcache = 0; | |
6265 | Lisp_Object prefix; | |
6266 | ||
6267 | if (!NILP (tem)) | |
6268 | tem = Fkey_binding (tem, Qnil); | |
6269 | ||
6270 | prefix = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6271 | if (CONSP (prefix)) | |
6272 | { | |
7539e11f KR |
6273 | def = XCAR (prefix); |
6274 | prefix = XCDR (prefix); | |
74c1de23 | 6275 | } |
e8886a1d | 6276 | else |
74c1de23 RS |
6277 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6278 | ||
7539e11f | 6279 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
6280 | { |
6281 | if (newcache /* Always check first time. */ | |
6282 | /* Should we check everything when precomputing key | |
6283 | bindings? */ | |
6284 | /* || notreal */ | |
6285 | /* If something had no key binding before, don't recheck it | |
6286 | because that is too slow--except if we have a list of | |
6287 | rebound commands in Vdefine_key_rebound_commands, do | |
6288 | recheck any command that appears in that list. */ | |
6289 | || (CONSP (Vdefine_key_rebound_commands) | |
6290 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6291 | chkcache = 1; | |
6292 | } | |
6293 | /* We had a saved key. Is it still bound to the command? */ | |
6294 | else if (NILP (tem) | |
03cee6ae GM |
6295 | || (!EQ (tem, def) |
6296 | /* If the command is an alias for another | |
6297 | (such as lmenu.el set it up), check if the | |
6298 | original command matches the cached command. */ | |
6299 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
6300 | chkcache = 1; /* Need to recompute key binding. */ |
6301 | ||
6302 | if (chkcache) | |
6303 | { | |
6304 | /* Recompute equivalent key binding. If the command is an alias | |
6305 | for another (such as lmenu.el set it up), see if the original | |
6306 | command name has equivalent keys. Otherwise look up the | |
6307 | specified command itself. We don't try both, because that | |
6308 | makes lmenu menus slow. */ | |
6309 | if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function) | |
6310 | && ! NILP (Fget (def, Qmenu_alias))) | |
6311 | def = XSYMBOL (def)->function; | |
6312 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
7539e11f | 6313 | XCAR (cachelist) = tem; |
74c1de23 RS |
6314 | if (NILP (tem)) |
6315 | { | |
7539e11f | 6316 | XCDR (cachelist) = Qnil; |
74c1de23 RS |
6317 | chkcache = 0; |
6318 | } | |
6319 | } | |
7539e11f | 6320 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 6321 | { |
7539e11f | 6322 | tem = XCAR (cachelist); |
74c1de23 RS |
6323 | chkcache = 1; |
6324 | } | |
6325 | ||
6326 | newcache = chkcache; | |
6327 | if (chkcache) | |
6328 | { | |
6329 | tem = Fkey_description (tem); | |
6330 | if (CONSP (prefix)) | |
6331 | { | |
7539e11f KR |
6332 | if (STRINGP (XCAR (prefix))) |
6333 | tem = concat2 (XCAR (prefix), tem); | |
6334 | if (STRINGP (XCDR (prefix))) | |
6335 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 6336 | } |
7539e11f | 6337 | XCDR (cachelist) = tem; |
74c1de23 RS |
6338 | } |
6339 | } | |
6340 | ||
7539e11f | 6341 | tem = XCDR (cachelist); |
74c1de23 | 6342 | if (newcache && !NILP (tem)) |
e8886a1d | 6343 | { |
74c1de23 | 6344 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
7539e11f | 6345 | XCDR (cachelist) = tem; |
e8886a1d RS |
6346 | } |
6347 | ||
6348 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6349 | if (notreal) | |
adc1d5c8 | 6350 | return 1; |
e8886a1d RS |
6351 | |
6352 | /* If we have an equivalent key binding, use that. */ | |
adc1d5c8 RS |
6353 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] = tem; |
6354 | ||
6355 | /* Include this when menu help is implemented. | |
6356 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6357 | if (!(NILP (tem) || STRINGP (tem))) | |
6358 | { | |
6359 | tem = menu_item_eval_property (tem); | |
6360 | if (!STRINGP (tem)) | |
6361 | tem = Qnil; | |
6362 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6363 | } | |
e8886a1d RS |
6364 | */ |
6365 | ||
6366 | /* Handle radio buttons or toggle boxes. */ | |
6367 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6368 | if (!NILP (tem)) | |
6369 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6370 | = menu_item_eval_property (tem); | |
6371 | ||
e8886a1d RS |
6372 | return 1; |
6373 | } | |
7ee32cda GM |
6374 | |
6375 | ||
6376 | \f | |
6377 | /*********************************************************************** | |
6378 | Tool-bars | |
6379 | ***********************************************************************/ | |
6380 | ||
9ea173e8 GM |
6381 | /* A vector holding tool bar items while they are parsed in function |
6382 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
6383 | in the vector. */ | |
7ee32cda | 6384 | |
9ea173e8 | 6385 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 6386 | |
9ea173e8 GM |
6387 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
6388 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 6389 | |
9ea173e8 | 6390 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 6391 | |
9ea173e8 | 6392 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 6393 | |
9ea173e8 | 6394 | static int ntool_bar_items; |
7ee32cda | 6395 | |
9ea173e8 | 6396 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 6397 | |
9ea173e8 | 6398 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
6399 | Lisp_Object QCimage; |
6400 | ||
6401 | /* Function prototypes. */ | |
6402 | ||
9ea173e8 GM |
6403 | static void init_tool_bar_items P_ ((Lisp_Object)); |
6404 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6405 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6406 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
6407 | |
6408 | ||
9ea173e8 | 6409 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 6410 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 6411 | tool bar items found. */ |
7ee32cda GM |
6412 | |
6413 | Lisp_Object | |
9ea173e8 | 6414 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
6415 | Lisp_Object reuse; |
6416 | int *nitems; | |
6417 | { | |
6418 | Lisp_Object *maps; | |
6419 | int nmaps, i; | |
6420 | Lisp_Object oquit; | |
6421 | Lisp_Object *tmaps; | |
6422 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
6423 | extern Lisp_Object Voverriding_local_map; | |
6424 | ||
6425 | *nitems = 0; | |
6426 | ||
6427 | /* In order to build the menus, we need to call the keymap | |
6428 | accessors. They all call QUIT. But this function is called | |
6429 | during redisplay, during which a quit is fatal. So inhibit | |
6430 | quitting while building the menus. We do this instead of | |
6431 | specbind because (1) errors will clear it anyway and (2) this | |
6432 | avoids risk of specpdl overflow. */ | |
6433 | oquit = Vinhibit_quit; | |
6434 | Vinhibit_quit = Qt; | |
6435 | ||
9ea173e8 GM |
6436 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
6437 | init_tool_bar_items (reuse); | |
7ee32cda GM |
6438 | |
6439 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
6440 | to process. */ | |
6441 | ||
6442 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
6443 | if (!NILP (Voverriding_local_map_menu_flag)) | |
6444 | { | |
6445 | /* Yes, use them (if non-nil) as well as the global map. */ | |
6446 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6447 | nmaps = 0; | |
6448 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6449 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6450 | if (!NILP (Voverriding_local_map)) | |
6451 | maps[nmaps++] = Voverriding_local_map; | |
6452 | } | |
6453 | else | |
6454 | { | |
6455 | /* No, so use major and minor mode keymaps. */ | |
6456 | nmaps = current_minor_maps (NULL, &tmaps); | |
6457 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
6458 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
7ee32cda | 6459 | maps[nmaps++] = get_local_map (PT, current_buffer); |
7ee32cda GM |
6460 | } |
6461 | ||
6462 | /* Add global keymap at the end. */ | |
6463 | maps[nmaps++] = current_global_map; | |
6464 | ||
6465 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 6466 | key `tool-bar'. */ |
7ee32cda GM |
6467 | for (i = nmaps - 1; i >= 0; --i) |
6468 | if (!NILP (maps[i])) | |
6469 | { | |
6470 | Lisp_Object keymap; | |
6471 | ||
9ea173e8 | 6472 | keymap = get_keyelt (access_keymap (maps[i], Qtool_bar, 1, 1), 0); |
7ee32cda GM |
6473 | if (!NILP (Fkeymapp (keymap))) |
6474 | { | |
6475 | Lisp_Object tail; | |
6476 | ||
6477 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
7539e11f | 6478 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
6479 | { |
6480 | Lisp_Object keydef = XCAR (tail); | |
6481 | if (CONSP (keydef)) | |
9ea173e8 | 6482 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
6483 | } |
6484 | } | |
6485 | } | |
6486 | ||
6487 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
6488 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
6489 | return tool_bar_items_vector; | |
7ee32cda GM |
6490 | } |
6491 | ||
6492 | ||
6493 | /* Process the definition of KEY which is DEF. */ | |
6494 | ||
6495 | static void | |
9ea173e8 | 6496 | process_tool_bar_item (key, def) |
7ee32cda GM |
6497 | Lisp_Object key, def; |
6498 | { | |
6499 | int i; | |
6500 | extern Lisp_Object Qundefined; | |
6501 | struct gcpro gcpro1, gcpro2; | |
6502 | ||
9ea173e8 | 6503 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
6504 | eval. */ |
6505 | GCPRO2 (key, def); | |
6506 | ||
6507 | if (EQ (def, Qundefined)) | |
6508 | { | |
6509 | /* If a map has an explicit `undefined' as definition, | |
6510 | discard any previously made item. */ | |
9ea173e8 | 6511 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 6512 | { |
9ea173e8 | 6513 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 6514 | |
9ea173e8 | 6515 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 6516 | { |
9ea173e8 GM |
6517 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
6518 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
6519 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 6520 | * sizeof (Lisp_Object))); |
9ea173e8 | 6521 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
6522 | break; |
6523 | } | |
6524 | } | |
6525 | } | |
9ea173e8 GM |
6526 | else if (parse_tool_bar_item (key, def)) |
6527 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 6528 | more than one definition for the same key. */ |
9ea173e8 | 6529 | append_tool_bar_item (); |
7ee32cda GM |
6530 | |
6531 | UNGCPRO; | |
6532 | } | |
6533 | ||
6534 | ||
9ea173e8 GM |
6535 | /* Parse a tool bar item specification ITEM for key KEY and return the |
6536 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
6537 | invalid. |
6538 | ||
6539 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
6540 | ||
6541 | CAPTION is the caption of the item, If it's not a string, it is | |
6542 | evaluated to get a string. | |
6543 | ||
9ea173e8 | 6544 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
6545 | as binding are currently ignored. |
6546 | ||
6547 | The following properties are recognized: | |
6548 | ||
6549 | - `:enable FORM'. | |
6550 | ||
9ea173e8 GM |
6551 | FORM is evaluated and specifies whether the tool bar item is |
6552 | enabled or disabled. | |
7ee32cda GM |
6553 | |
6554 | - `:visible FORM' | |
6555 | ||
9ea173e8 | 6556 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
6557 | |
6558 | - `:filter FUNCTION' | |
6559 | ||
6560 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
6561 | result is stored as the new binding. | |
6562 | ||
6563 | - `:button (TYPE SELECTED)' | |
6564 | ||
6565 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
6566 | and specifies whether the button is selected (pressed) or not. | |
6567 | ||
6568 | - `:image IMAGES' | |
6569 | ||
6570 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 6571 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
6572 | |
6573 | - `:help HELP-STRING'. | |
6574 | ||
9ea173e8 | 6575 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
6576 | |
6577 | static int | |
9ea173e8 | 6578 | parse_tool_bar_item (key, item) |
7ee32cda GM |
6579 | Lisp_Object key, item; |
6580 | { | |
9ea173e8 GM |
6581 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
6582 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
6583 | |
6584 | Lisp_Object filter = Qnil; | |
6585 | Lisp_Object caption; | |
6586 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
6587 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
6588 | int i; | |
7ee32cda | 6589 | |
9ea173e8 | 6590 | /* Defininition looks like `(tool-bar-item CAPTION BINDING |
7ee32cda | 6591 | PROPS...)'. Rule out items that aren't lists, don't start with |
9ea173e8 | 6592 | `tool-bar-item' or whose rest following `tool-bar-item' is not a |
7ee32cda GM |
6593 | list. */ |
6594 | if (!CONSP (item) | |
6595 | || !EQ (XCAR (item), Qmenu_item) | |
6596 | || (item = XCDR (item), | |
6597 | !CONSP (item))) | |
6598 | return 0; | |
6599 | ||
9ea173e8 | 6600 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 6601 | defaults. */ |
9ea173e8 | 6602 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 6603 | { |
9ea173e8 | 6604 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
6605 | PROP (i) = Qnil; |
6606 | } | |
6607 | else | |
9ea173e8 GM |
6608 | tool_bar_item_properties |
6609 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
6610 | |
6611 | /* Set defaults. */ | |
9ea173e8 GM |
6612 | PROP (TOOL_BAR_ITEM_KEY) = key; |
6613 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
6614 | |
6615 | /* Get the caption of the item. If the caption is not a string, | |
6616 | evaluate it to get a string. If we don't get a string, skip this | |
6617 | item. */ | |
6618 | caption = XCAR (item); | |
6619 | if (!STRINGP (caption)) | |
6620 | { | |
6621 | caption = menu_item_eval_property (caption); | |
6622 | if (!STRINGP (caption)) | |
6623 | return 0; | |
6624 | } | |
9ea173e8 | 6625 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
6626 | |
6627 | /* Give up if rest following the caption is not a list. */ | |
6628 | item = XCDR (item); | |
6629 | if (!CONSP (item)) | |
6630 | return 0; | |
6631 | ||
6632 | /* Store the binding. */ | |
9ea173e8 | 6633 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
6634 | item = XCDR (item); |
6635 | ||
6636 | /* Process the rest of the properties. */ | |
6637 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
6638 | { | |
6639 | Lisp_Object key, value; | |
6640 | ||
6641 | key = XCAR (item); | |
6642 | value = XCAR (XCDR (item)); | |
6643 | ||
6644 | if (EQ (key, QCenable)) | |
6645 | /* `:enable FORM'. */ | |
9ea173e8 | 6646 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
6647 | else if (EQ (key, QCvisible)) |
6648 | { | |
6649 | /* `:visible FORM'. If got a visible property and that | |
6650 | evaluates to nil then ignore this item. */ | |
6651 | if (NILP (menu_item_eval_property (value))) | |
6652 | return 0; | |
6653 | } | |
6654 | else if (EQ (key, QChelp)) | |
6655 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 6656 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
6657 | else if (EQ (key, QCfilter)) |
6658 | /* ':filter FORM'. */ | |
6659 | filter = value; | |
6660 | else if (EQ (key, QCbutton) && CONSP (value)) | |
6661 | { | |
6662 | /* `:button (TYPE . SELECTED)'. */ | |
6663 | Lisp_Object type, selected; | |
6664 | ||
6665 | type = XCAR (value); | |
6666 | selected = XCDR (value); | |
6667 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
6668 | { | |
9ea173e8 GM |
6669 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
6670 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
6671 | } |
6672 | } | |
6673 | else if (EQ (key, QCimage) | |
6674 | && (CONSP (value) | |
6675 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
6676 | /* Value is either a single image specification or a vector | |
6677 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 6678 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
6679 | } |
6680 | ||
6681 | /* If got a filter apply it on binding. */ | |
6682 | if (!NILP (filter)) | |
9ea173e8 | 6683 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
6684 | = menu_item_eval_property (list2 (filter, |
6685 | list2 (Qquote, | |
9ea173e8 | 6686 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
6687 | |
6688 | /* See if the binding is a keymap. Give up if it is. */ | |
9ea173e8 | 6689 | if (!NILP (get_keymap_1 (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
6690 | return 0; |
6691 | ||
6692 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
6693 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
6694 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
6695 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
6696 | |
6697 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
6698 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
6699 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
6700 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
6701 | |
6702 | return 1; | |
6703 | ||
6704 | #undef PROP | |
6705 | } | |
6706 | ||
6707 | ||
9ea173e8 GM |
6708 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
6709 | that can be reused. */ | |
7ee32cda GM |
6710 | |
6711 | static void | |
9ea173e8 | 6712 | init_tool_bar_items (reuse) |
7ee32cda GM |
6713 | Lisp_Object reuse; |
6714 | { | |
6715 | if (VECTORP (reuse)) | |
9ea173e8 | 6716 | tool_bar_items_vector = reuse; |
7ee32cda | 6717 | else |
9ea173e8 GM |
6718 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
6719 | ntool_bar_items = 0; | |
7ee32cda GM |
6720 | } |
6721 | ||
6722 | ||
9ea173e8 GM |
6723 | /* Append parsed tool bar item properties from |
6724 | tool_bar_item_properties */ | |
7ee32cda GM |
6725 | |
6726 | static void | |
9ea173e8 | 6727 | append_tool_bar_item () |
7ee32cda GM |
6728 | { |
6729 | Lisp_Object *to, *from; | |
6730 | ||
9ea173e8 GM |
6731 | /* Enlarge tool_bar_items_vector if necessary. */ |
6732 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
6733 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
6734 | { |
6735 | Lisp_Object new_vector; | |
9ea173e8 | 6736 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
6737 | |
6738 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 6739 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
6740 | XVECTOR (new_vector)->contents, |
6741 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 6742 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
6743 | } |
6744 | ||
9ea173e8 GM |
6745 | /* Append entries from tool_bar_item_properties to the end of |
6746 | tool_bar_items_vector. */ | |
6747 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
6748 | from = XVECTOR (tool_bar_item_properties)->contents; | |
6749 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
6750 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
6751 | } |
6752 | ||
6753 | ||
6754 | ||
6755 | ||
e8886a1d | 6756 | \f |
dcc408a0 RS |
6757 | /* Read a character using menus based on maps in the array MAPS. |
6758 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
6759 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
6760 | |
6761 | PREV_EVENT is the previous input event, or nil if we are reading | |
6762 | the first event of a key sequence. | |
6763 | ||
83d68044 | 6764 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 6765 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 6766 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
6767 | |
6768 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 6769 | and the strings associated with various map elements. |
8150596a RS |
6770 | |
6771 | This can be done with X menus or with menus put in the minibuf. | |
6772 | These are done in different ways, depending on how the input will be read. | |
6773 | Menus using X are done after auto-saving in read-char, getting the input | |
6774 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
6775 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 6776 | |
7617111f | 6777 | static Lisp_Object |
8150596a | 6778 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
6779 | int nmaps; |
6780 | Lisp_Object *maps; | |
6781 | Lisp_Object prev_event; | |
6782 | int *used_mouse_menu; | |
284f4730 | 6783 | { |
7d6de002 RS |
6784 | int mapno; |
6785 | register Lisp_Object name; | |
7d6de002 | 6786 | |
6569cc8d JB |
6787 | if (used_mouse_menu) |
6788 | *used_mouse_menu = 0; | |
284f4730 JB |
6789 | |
6790 | /* Use local over global Menu maps */ | |
6791 | ||
7d6de002 RS |
6792 | if (! menu_prompting) |
6793 | return Qnil; | |
6794 | ||
03361bcc RS |
6795 | /* Optionally disregard all but the global map. */ |
6796 | if (inhibit_local_menu_bar_menus) | |
6797 | { | |
6798 | maps += (nmaps - 1); | |
6799 | nmaps = 1; | |
6800 | } | |
6801 | ||
7d6de002 RS |
6802 | /* Get the menu name from the first map that has one (a prompt string). */ |
6803 | for (mapno = 0; mapno < nmaps; mapno++) | |
6804 | { | |
6805 | name = map_prompt (maps[mapno]); | |
6806 | if (!NILP (name)) | |
6807 | break; | |
6808 | } | |
284f4730 | 6809 | |
7d6de002 | 6810 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 6811 | if (mapno >= nmaps) |
7d6de002 RS |
6812 | return Qnil; |
6813 | ||
1f5b1641 | 6814 | #ifdef HAVE_MENUS |
7d6de002 RS |
6815 | /* If we got to this point via a mouse click, |
6816 | use a real menu for mouse selection. */ | |
5a8d99e0 | 6817 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
6818 | && !EQ (XCAR (prev_event), Qmenu_bar) |
6819 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
6820 | { |
6821 | /* Display the menu and get the selection. */ | |
6822 | Lisp_Object *realmaps | |
6823 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
6824 | Lisp_Object value; | |
6825 | int nmaps1 = 0; | |
6826 | ||
6827 | /* Use the maps that are not nil. */ | |
6828 | for (mapno = 0; mapno < nmaps; mapno++) | |
6829 | if (!NILP (maps[mapno])) | |
6830 | realmaps[nmaps1++] = maps[mapno]; | |
6831 | ||
6832 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
6833 | if (CONSP (value)) |
6834 | { | |
68f297c5 RS |
6835 | Lisp_Object tem; |
6836 | ||
7539e11f | 6837 | record_menu_key (XCAR (value)); |
8eb4d8ef | 6838 | |
68f297c5 RS |
6839 | /* If we got multiple events, unread all but |
6840 | the first. | |
6841 | There is no way to prevent those unread events | |
6842 | from showing up later in last_nonmenu_event. | |
6843 | So turn symbol and integer events into lists, | |
6844 | to indicate that they came from a mouse menu, | |
6845 | so that when present in last_nonmenu_event | |
6846 | they won't confuse things. */ | |
7539e11f KR |
6847 | for (tem = XCDR (value); !NILP (tem); |
6848 | tem = XCDR (tem)) | |
8eb4d8ef | 6849 | { |
7539e11f KR |
6850 | record_menu_key (XCAR (tem)); |
6851 | if (SYMBOLP (XCAR (tem)) | |
6852 | || INTEGERP (XCAR (tem))) | |
6853 | XCAR (tem) | |
6854 | = Fcons (XCAR (tem), Qnil); | |
8eb4d8ef | 6855 | } |
68f297c5 | 6856 | |
663258f2 JB |
6857 | /* If we got more than one event, put all but the first |
6858 | onto this list to be read later. | |
6859 | Return just the first event now. */ | |
24597608 | 6860 | Vunread_command_events |
7539e11f KR |
6861 | = nconc2 (XCDR (value), Vunread_command_events); |
6862 | value = XCAR (value); | |
663258f2 | 6863 | } |
1c90c381 | 6864 | else if (NILP (value)) |
dcc408a0 | 6865 | value = Qt; |
6569cc8d JB |
6866 | if (used_mouse_menu) |
6867 | *used_mouse_menu = 1; | |
7d6de002 RS |
6868 | return value; |
6869 | } | |
1f5b1641 | 6870 | #endif /* HAVE_MENUS */ |
8150596a RS |
6871 | return Qnil ; |
6872 | } | |
6873 | ||
68e0de82 RS |
6874 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
6875 | We make this bigger when necessary, and never free it. */ | |
6876 | static char *read_char_minibuf_menu_text; | |
6877 | /* Size of that buffer. */ | |
6878 | static int read_char_minibuf_menu_width; | |
6879 | ||
8150596a | 6880 | static Lisp_Object |
24597608 | 6881 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
6882 | int commandflag ; |
6883 | int nmaps; | |
6884 | Lisp_Object *maps; | |
6885 | { | |
6886 | int mapno; | |
6887 | register Lisp_Object name; | |
6888 | int nlength; | |
788f89eb | 6889 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 6890 | int idx = -1; |
9fdbfdf8 | 6891 | int nobindings = 1; |
8150596a | 6892 | Lisp_Object rest, vector; |
68e0de82 | 6893 | char *menu; |
8150596a RS |
6894 | |
6895 | if (! menu_prompting) | |
6896 | return Qnil; | |
6897 | ||
68e0de82 RS |
6898 | /* Make sure we have a big enough buffer for the menu text. */ |
6899 | if (read_char_minibuf_menu_text == 0) | |
6900 | { | |
6901 | read_char_minibuf_menu_width = width + 4; | |
6902 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
6903 | } | |
6904 | else if (width + 4 > read_char_minibuf_menu_width) | |
6905 | { | |
6906 | read_char_minibuf_menu_width = width + 4; | |
6907 | read_char_minibuf_menu_text | |
6908 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
6909 | } | |
6910 | menu = read_char_minibuf_menu_text; | |
6911 | ||
8150596a RS |
6912 | /* Get the menu name from the first map that has one (a prompt string). */ |
6913 | for (mapno = 0; mapno < nmaps; mapno++) | |
6914 | { | |
6915 | name = map_prompt (maps[mapno]); | |
6916 | if (!NILP (name)) | |
6917 | break; | |
6918 | } | |
6919 | ||
6920 | /* If we don't have any menus, just read a character normally. */ | |
6921 | if (mapno >= nmaps) | |
6922 | return Qnil; | |
284f4730 JB |
6923 | |
6924 | /* Prompt string always starts with map's prompt, and a space. */ | |
6925 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 6926 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 6927 | menu[nlength++] = ':'; |
284f4730 JB |
6928 | menu[nlength++] = ' '; |
6929 | menu[nlength] = 0; | |
6930 | ||
7d6de002 RS |
6931 | /* Start prompting at start of first map. */ |
6932 | mapno = 0; | |
6933 | rest = maps[mapno]; | |
284f4730 JB |
6934 | |
6935 | /* Present the documented bindings, a line at a time. */ | |
6936 | while (1) | |
6937 | { | |
6938 | int notfirst = 0; | |
6939 | int i = nlength; | |
6940 | Lisp_Object obj; | |
6941 | int ch; | |
8066f1a1 | 6942 | Lisp_Object orig_defn_macro; |
284f4730 | 6943 | |
284f4730 | 6944 | /* Loop over elements of map. */ |
7d6de002 | 6945 | while (i < width) |
284f4730 | 6946 | { |
fd3613d7 | 6947 | Lisp_Object elt; |
284f4730 | 6948 | |
7d6de002 RS |
6949 | /* If reached end of map, start at beginning of next map. */ |
6950 | if (NILP (rest)) | |
6951 | { | |
6952 | mapno++; | |
6953 | /* At end of last map, wrap around to first map if just starting, | |
6954 | or end this line if already have something on it. */ | |
6955 | if (mapno == nmaps) | |
284f4730 | 6956 | { |
8150596a | 6957 | mapno = 0; |
40932d1a | 6958 | if (notfirst || nobindings) break; |
284f4730 | 6959 | } |
7d6de002 | 6960 | rest = maps[mapno]; |
284f4730 | 6961 | } |
7d6de002 RS |
6962 | |
6963 | /* Look at the next element of the map. */ | |
6964 | if (idx >= 0) | |
6965 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 6966 | else |
7d6de002 RS |
6967 | elt = Fcar_safe (rest); |
6968 | ||
8c18cbfb | 6969 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 6970 | { |
7d6de002 RS |
6971 | /* If we found a dense table in the keymap, |
6972 | advanced past it, but start scanning its contents. */ | |
6973 | rest = Fcdr_safe (rest); | |
6974 | vector = elt; | |
6975 | idx = 0; | |
284f4730 | 6976 | } |
7d6de002 RS |
6977 | else |
6978 | { | |
6979 | /* An ordinary element. */ | |
fd3613d7 | 6980 | Lisp_Object event, tem; |
0a2ea221 KH |
6981 | |
6982 | if (idx < 0) | |
6983 | { | |
fd3613d7 RS |
6984 | event = Fcar_safe (elt); /* alist */ |
6985 | elt = Fcdr_safe (elt); | |
0a2ea221 | 6986 | } |
8150596a | 6987 | else |
7d6de002 | 6988 | { |
fd3613d7 | 6989 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
6990 | } |
6991 | ||
6992 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 6993 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
6994 | { |
6995 | /* 1 if the char to type matches the string. */ | |
6996 | int char_matches; | |
6997 | Lisp_Object upcased_event, downcased_event; | |
6998 | Lisp_Object desc; | |
fd3613d7 RS |
6999 | Lisp_Object s |
7000 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7001 | |
7002 | upcased_event = Fupcase (event); | |
7003 | downcased_event = Fdowncase (event); | |
7004 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7005 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7006 | if (! char_matches) | |
7007 | desc = Fsingle_key_description (event); | |
7008 | ||
fd3613d7 RS |
7009 | tem |
7010 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7011 | if (!NILP (tem)) | |
7012 | /* Insert equivalent keybinding. */ | |
7013 | s = concat2 (s, tem); | |
7014 | ||
7015 | tem | |
7016 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7017 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7018 | { | |
7019 | /* Insert button prefix. */ | |
7020 | Lisp_Object selected | |
7021 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7022 | if (EQ (tem, QCradio)) | |
7023 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7024 | else | |
7025 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7026 | s = concat2 (tem, s); | |
7027 | } | |
7028 | ||
7029 | ||
0a2ea221 KH |
7030 | /* If we have room for the prompt string, add it to this line. |
7031 | If this is the first on the line, always add it. */ | |
7032 | if ((XSTRING (s)->size + i + 2 | |
7033 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7034 | < width | |
7035 | || !notfirst) | |
7036 | { | |
7037 | int thiswidth; | |
7038 | ||
7039 | /* Punctuate between strings. */ | |
7040 | if (notfirst) | |
7041 | { | |
7042 | strcpy (menu + i, ", "); | |
7043 | i += 2; | |
7044 | } | |
7045 | notfirst = 1; | |
7046 | nobindings = 0 ; | |
284f4730 | 7047 | |
0a2ea221 KH |
7048 | /* If the char to type doesn't match the string's |
7049 | first char, explicitly show what char to type. */ | |
7050 | if (! char_matches) | |
7051 | { | |
7052 | /* Add as much of string as fits. */ | |
7053 | thiswidth = XSTRING (desc)->size; | |
7054 | if (thiswidth + i > width) | |
7055 | thiswidth = width - i; | |
7056 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7057 | i += thiswidth; | |
7058 | strcpy (menu + i, " = "); | |
7059 | i += 3; | |
7060 | } | |
7061 | ||
7062 | /* Add as much of string as fits. */ | |
7063 | thiswidth = XSTRING (s)->size; | |
7064 | if (thiswidth + i > width) | |
7065 | thiswidth = width - i; | |
7066 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7067 | i += thiswidth; | |
7068 | menu[i] = 0; | |
7069 | } | |
7070 | else | |
7d6de002 | 7071 | { |
0a2ea221 KH |
7072 | /* If this element does not fit, end the line now, |
7073 | and save the element for the next line. */ | |
7074 | strcpy (menu + i, "..."); | |
7075 | break; | |
7d6de002 | 7076 | } |
7d6de002 RS |
7077 | } |
7078 | ||
7079 | /* Move past this element. */ | |
8150596a | 7080 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7081 | /* Handle reaching end of dense table. */ |
7082 | idx = -1; | |
7083 | if (idx >= 0) | |
7084 | idx++; | |
7085 | else | |
7086 | rest = Fcdr_safe (rest); | |
7087 | } | |
284f4730 JB |
7088 | } |
7089 | ||
7090 | /* Prompt with that and read response. */ | |
301738ed RS |
7091 | message2_nolog (menu, strlen (menu), |
7092 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7093 | |
df0f2ba1 | 7094 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7095 | is pressed. Help characters are not recorded because menu prompting |
7096 | is not used on replay. | |
7097 | */ | |
c5fdd383 KH |
7098 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7099 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
7100 | do |
7101 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 7102 | while (BUFFERP (obj)); |
c5fdd383 | 7103 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7104 | |
8c18cbfb | 7105 | if (!INTEGERP (obj)) |
284f4730 JB |
7106 | return obj; |
7107 | else | |
7108 | ch = XINT (obj); | |
7109 | ||
f4255cd1 | 7110 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7111 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7112 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7113 | { |
c5fdd383 | 7114 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7115 | store_kbd_macro_char (obj); |
8150596a RS |
7116 | return obj; |
7117 | } | |
7118 | /* Help char - go round again */ | |
284f4730 JB |
7119 | } |
7120 | } | |
284f4730 JB |
7121 | \f |
7122 | /* Reading key sequences. */ | |
7123 | ||
7124 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7125 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7126 | keymap, or nil otherwise. Return the index of the first keymap in | |
7127 | which KEY has any binding, or NMAPS if no map has a binding. | |
7128 | ||
7129 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7130 | followed by the corresponding non-meta character. Keymaps in | |
7131 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7132 | NEXT. | |
7133 | ||
88cb0656 JB |
7134 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7135 | unmodified. | |
7136 | ||
569871d2 | 7137 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7138 | |
7139 | static int | |
4e50f26a | 7140 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7141 | Lisp_Object key; |
7142 | Lisp_Object *current, *defs, *next; | |
7143 | int nmaps; | |
7144 | { | |
7145 | int i, first_binding; | |
569871d2 | 7146 | int did_meta = 0; |
284f4730 JB |
7147 | |
7148 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
7149 | followed by the corresponding non-meta character. |
7150 | Put the results into DEFS, since we are going to alter that anyway. | |
7151 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 7152 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
7153 | { |
7154 | for (i = 0; i < nmaps; i++) | |
7155 | if (! NILP (current[i])) | |
7156 | { | |
569871d2 RS |
7157 | Lisp_Object def; |
7158 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 7159 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
7160 | |
7161 | /* Note that since we pass the resulting bindings through | |
7162 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
7163 | disappear. */ | |
569871d2 | 7164 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
7165 | } |
7166 | else | |
569871d2 | 7167 | defs[i] = Qnil; |
284f4730 | 7168 | |
569871d2 | 7169 | did_meta = 1; |
18cd2eeb | 7170 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
7171 | } |
7172 | ||
7173 | first_binding = nmaps; | |
7174 | for (i = nmaps - 1; i >= 0; i--) | |
7175 | { | |
7176 | if (! NILP (current[i])) | |
7177 | { | |
569871d2 RS |
7178 | Lisp_Object map; |
7179 | if (did_meta) | |
7180 | map = defs[i]; | |
7181 | else | |
7182 | map = current[i]; | |
7183 | ||
c6a67acd | 7184 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
7185 | if (! NILP (defs[i])) |
7186 | first_binding = i; | |
7187 | } | |
7188 | else | |
7189 | defs[i] = Qnil; | |
7190 | } | |
7191 | ||
284f4730 | 7192 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7193 | if (first_binding < nmaps) |
7194 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 7195 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
7196 | |
7197 | return first_binding; | |
7198 | } | |
7199 | ||
df0f2ba1 | 7200 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7201 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7202 | Prompt with PROMPT. | |
284f4730 | 7203 | Return the length of the key sequence stored. |
dcc408a0 | 7204 | Return -1 if the user rejected a command menu. |
284f4730 | 7205 | |
f4255cd1 JB |
7206 | Echo starting immediately unless `prompt' is 0. |
7207 | ||
7208 | Where a key sequence ends depends on the currently active keymaps. | |
7209 | These include any minor mode keymaps active in the current buffer, | |
7210 | the current buffer's local map, and the global map. | |
7211 | ||
7212 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7213 | to see if some trailing subsequence might be the beginning of a | |
7214 | function key's sequence. If so, we try to read the whole function | |
7215 | key, and substitute its symbolic name into the key sequence. | |
7216 | ||
fbcd35bd JB |
7217 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7218 | `double-' events into similar click events, if that would make them | |
7219 | bound. We try to turn `triple-' events first into `double-' events, | |
7220 | then into clicks. | |
f4255cd1 JB |
7221 | |
7222 | If we get a mouse click in a mode line, vertical divider, or other | |
7223 | non-text area, we treat the click as if it were prefixed by the | |
7224 | symbol denoting that area - `mode-line', `vertical-line', or | |
7225 | whatever. | |
7226 | ||
7227 | If the sequence starts with a mouse click, we read the key sequence | |
7228 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7229 | |
f4255cd1 JB |
7230 | If the user switches frames in the midst of a key sequence, we put |
7231 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7232 | read_char will return it. |
7233 | ||
7234 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7235 | from the selected window's buffer. */ | |
48e416d4 | 7236 | |
284f4730 | 7237 | static int |
ce98e608 | 7238 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7239 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7240 | Lisp_Object *keybuf; |
7241 | int bufsize; | |
84d91fda | 7242 | Lisp_Object prompt; |
309b0fc8 | 7243 | int dont_downcase_last; |
ce98e608 | 7244 | int can_return_switch_frame; |
f571ae0d | 7245 | int fix_current_buffer; |
284f4730 | 7246 | { |
f4255cd1 JB |
7247 | int count = specpdl_ptr - specpdl; |
7248 | ||
284f4730 JB |
7249 | /* How many keys there are in the current key sequence. */ |
7250 | int t; | |
7251 | ||
284f4730 JB |
7252 | /* The length of the echo buffer when we started reading, and |
7253 | the length of this_command_keys when we started reading. */ | |
7254 | int echo_start; | |
f4255cd1 | 7255 | int keys_start; |
284f4730 JB |
7256 | |
7257 | /* The number of keymaps we're scanning right now, and the number of | |
7258 | keymaps we have allocated space for. */ | |
7259 | int nmaps; | |
7260 | int nmaps_allocated = 0; | |
7261 | ||
284f4730 JB |
7262 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7263 | the current keymaps. */ | |
7264 | Lisp_Object *defs; | |
7265 | ||
f4255cd1 JB |
7266 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7267 | in the current keymaps, or nil where it is not a prefix. */ | |
7268 | Lisp_Object *submaps; | |
7269 | ||
e0dff5f6 RS |
7270 | /* The local map to start out with at start of key sequence. */ |
7271 | Lisp_Object orig_local_map; | |
7272 | ||
7273 | /* 1 if we have already considered switching to the local-map property | |
7274 | of the place where a mouse click occurred. */ | |
7275 | int localized_local_map = 0; | |
7276 | ||
f4255cd1 JB |
7277 | /* The index in defs[] of the first keymap that has a binding for |
7278 | this key sequence. In other words, the lowest i such that | |
7279 | defs[i] is non-nil. */ | |
284f4730 JB |
7280 | int first_binding; |
7281 | ||
f4255cd1 | 7282 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7283 | input key. |
7284 | ||
7285 | We use this to recover after recognizing a function key. Once we | |
7286 | realize that a suffix of the current key sequence is actually a | |
7287 | function key's escape sequence, we replace the suffix with the | |
7288 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7289 | contains a new and different key sequence, so the echo area, |
7290 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7291 | this situation, we set mock_input to t, set t to 0, and jump to | |
7292 | restart_sequence; the loop will read keys from keybuf up until | |
7293 | mock_input, thus rebuilding the state; and then it will resume | |
7294 | reading characters from the keyboard. */ | |
284f4730 JB |
7295 | int mock_input = 0; |
7296 | ||
253598e4 | 7297 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7298 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7299 | and fkey_map is its binding. | |
253598e4 | 7300 | |
f4255cd1 JB |
7301 | These might be > t, indicating that all function key scanning |
7302 | should hold off until t reaches them. We do this when we've just | |
7303 | recognized a function key, to avoid searching for the function | |
7304 | key's again in Vfunction_key_map. */ | |
284f4730 | 7305 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 7306 | Lisp_Object fkey_map; |
284f4730 | 7307 | |
a612e298 RS |
7308 | /* Likewise, for key_translation_map. */ |
7309 | int keytran_start = 0, keytran_end = 0; | |
7310 | Lisp_Object keytran_map; | |
7311 | ||
cd21b839 JB |
7312 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7313 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 7314 | Lisp_Object delayed_switch_frame; |
cd21b839 | 7315 | |
51763820 BF |
7316 | /* See the comment below... */ |
7317 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7318 | Lisp_Object first_event; |
51763820 | 7319 | #endif |
4efda7dd | 7320 | |
309b0fc8 RS |
7321 | Lisp_Object original_uppercase; |
7322 | int original_uppercase_position = -1; | |
7323 | ||
bc536d84 | 7324 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7325 | int dummyflag = 0; |
bc536d84 | 7326 | |
3b9189f8 RS |
7327 | struct buffer *starting_buffer; |
7328 | ||
e9bf89a0 RS |
7329 | /* Nonzero if we seem to have got the beginning of a binding |
7330 | in function_key_map. */ | |
7331 | int function_key_possible = 0; | |
00a78037 | 7332 | int key_translation_possible = 0; |
e9bf89a0 | 7333 | |
3fe8e9a2 RS |
7334 | /* Save the status of key translation before each step, |
7335 | so that we can restore this after downcasing. */ | |
7336 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7337 | int prev_fkey_start; |
7338 | int prev_fkey_end; | |
3fe8e9a2 RS |
7339 | |
7340 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7341 | int prev_keytran_start; |
7342 | int prev_keytran_end; | |
3fe8e9a2 | 7343 | |
03cee6ae | 7344 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 7345 | int junk; |
03cee6ae | 7346 | #endif |
4efda7dd | 7347 | |
7d18f9ae RS |
7348 | raw_keybuf_count = 0; |
7349 | ||
4efda7dd RS |
7350 | last_nonmenu_event = Qnil; |
7351 | ||
7352 | delayed_switch_frame = Qnil; | |
7353 | fkey_map = Vfunction_key_map; | |
a612e298 | 7354 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7355 | |
a612e298 | 7356 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
7357 | if (NILP (Fkeymapp (Vfunction_key_map))) |
7358 | fkey_start = fkey_end = bufsize + 1; | |
7359 | ||
a612e298 RS |
7360 | /* If there is no key-translation-map, turn off scanning. */ |
7361 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
7362 | keytran_start = keytran_end = bufsize + 1; | |
7363 | ||
284f4730 JB |
7364 | if (INTERACTIVE) |
7365 | { | |
84d91fda RS |
7366 | if (!NILP (prompt)) |
7367 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 7368 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
7369 | /* This doesn't put in a dash if the echo buffer is empty, so |
7370 | you don't always see a dash hanging out in the minibuffer. */ | |
7371 | echo_dash (); | |
284f4730 JB |
7372 | } |
7373 | ||
f4255cd1 JB |
7374 | /* Record the initial state of the echo area and this_command_keys; |
7375 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 7376 | if (INTERACTIVE) |
df0f2ba1 | 7377 | echo_start = echo_length (); |
f4255cd1 | 7378 | keys_start = this_command_key_count; |
6321824f | 7379 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 7380 | |
51763820 BF |
7381 | #if defined (GOBBLE_FIRST_EVENT) |
7382 | /* This doesn't quite work, because some of the things that read_char | |
7383 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 7384 | this work right. */ |
51763820 | 7385 | |
4efda7dd RS |
7386 | /* Read the first char of the sequence specially, before setting |
7387 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 7388 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 7389 | &junk); |
51763820 | 7390 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 7391 | |
e0dff5f6 RS |
7392 | orig_local_map = get_local_map (PT, current_buffer); |
7393 | ||
7b4aedb9 JB |
7394 | /* We jump here when the key sequence has been thoroughly changed, and |
7395 | we need to rescan it starting from the beginning. When we jump here, | |
7396 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 7397 | replay_sequence: |
7b4aedb9 | 7398 | |
3b9189f8 | 7399 | starting_buffer = current_buffer; |
e9bf89a0 | 7400 | function_key_possible = 0; |
00a78037 | 7401 | key_translation_possible = 0; |
3b9189f8 | 7402 | |
f4255cd1 | 7403 | /* Build our list of keymaps. |
07d2b8de JB |
7404 | If we recognize a function key and replace its escape sequence in |
7405 | keybuf with its symbol, or if the sequence starts with a mouse | |
7406 | click and we need to switch buffers, we jump back here to rebuild | |
7407 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7408 | { |
284f4730 JB |
7409 | Lisp_Object *maps; |
7410 | ||
217258d5 KH |
7411 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
7412 | || !NILP (Voverriding_local_map)) | |
284f4730 | 7413 | { |
217258d5 | 7414 | if (3 > nmaps_allocated) |
9dd3131c | 7415 | { |
217258d5 KH |
7416 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
7417 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
7418 | nmaps_allocated = 3; | |
9dd3131c | 7419 | } |
217258d5 KH |
7420 | nmaps = 0; |
7421 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7422 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7423 | if (!NILP (Voverriding_local_map)) | |
7424 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 7425 | } |
9dd3131c RS |
7426 | else |
7427 | { | |
217258d5 KH |
7428 | nmaps = current_minor_maps (0, &maps); |
7429 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 7430 | { |
217258d5 KH |
7431 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
7432 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
7433 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 7434 | } |
217258d5 | 7435 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
217258d5 | 7436 | submaps[nmaps++] = orig_local_map; |
9dd3131c | 7437 | } |
217258d5 | 7438 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
7439 | } |
7440 | ||
7441 | /* Find an accurate initial value for first_binding. */ | |
7442 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 7443 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
7444 | break; |
7445 | ||
3b9189f8 | 7446 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
7447 | t = 0; |
7448 | ||
7449 | /* These are no-ops the first time through, but if we restart, they | |
7450 | revert the echo area and this_command_keys to their original state. */ | |
7451 | this_command_key_count = keys_start; | |
df0f2ba1 | 7452 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
7453 | echo_truncate (echo_start); |
7454 | ||
cca310da JB |
7455 | /* If the best binding for the current key sequence is a keymap, or |
7456 | we may be looking at a function key's escape sequence, keep on | |
7457 | reading. */ | |
253598e4 | 7458 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
7459 | || (first_binding >= nmaps |
7460 | && fkey_start < t | |
7461 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 7462 | && mock_input <= fkey_start) |
0d882d52 KH |
7463 | || (first_binding >= nmaps |
7464 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
7465 | /* Don't return in the middle of a possible function key sequence, |
7466 | if the only bindings we found were via case conversion. | |
7467 | Thus, if ESC O a has a function-key-map translation | |
7468 | and ESC o has a binding, don't return after ESC O, | |
7469 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 7470 | ) |
284f4730 JB |
7471 | { |
7472 | Lisp_Object key; | |
7d6de002 | 7473 | int used_mouse_menu = 0; |
284f4730 | 7474 | |
7b4aedb9 JB |
7475 | /* Where the last real key started. If we need to throw away a |
7476 | key that has expanded into more than one element of keybuf | |
7477 | (say, a mouse click on the mode line which is being treated | |
7478 | as [mode-line (mouse-...)], then we backtrack to this point | |
7479 | of keybuf. */ | |
7480 | int last_real_key_start; | |
7481 | ||
0a7f1fc0 JB |
7482 | /* These variables are analogous to echo_start and keys_start; |
7483 | while those allow us to restart the entire key sequence, | |
7484 | echo_local_start and keys_local_start allow us to throw away | |
7485 | just one key. */ | |
f4255cd1 JB |
7486 | int echo_local_start, keys_local_start, local_first_binding; |
7487 | ||
284f4730 | 7488 | if (t >= bufsize) |
3fe8e9a2 | 7489 | error ("Key sequence too long"); |
284f4730 | 7490 | |
f4255cd1 JB |
7491 | if (INTERACTIVE) |
7492 | echo_local_start = echo_length (); | |
7493 | keys_local_start = this_command_key_count; | |
7494 | local_first_binding = first_binding; | |
df0f2ba1 | 7495 | |
f4255cd1 | 7496 | replay_key: |
0a7f1fc0 | 7497 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
7498 | jumped back up to replay_key; in that case, these restore the |
7499 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 7500 | loop. */ |
40932d1a | 7501 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 7502 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
7503 | this_command_key_count = keys_local_start; |
7504 | first_binding = local_first_binding; | |
7505 | ||
7e85b935 RS |
7506 | /* By default, assume each event is "real". */ |
7507 | last_real_key_start = t; | |
7508 | ||
f4255cd1 | 7509 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
7510 | if (t < mock_input) |
7511 | { | |
7512 | key = keybuf[t]; | |
7513 | add_command_key (key); | |
a98ea3f9 RS |
7514 | if (echo_keystrokes) |
7515 | echo_char (key); | |
284f4730 | 7516 | } |
253598e4 JB |
7517 | |
7518 | /* If not, we should actually read a character. */ | |
284f4730 JB |
7519 | else |
7520 | { | |
beecf6a1 | 7521 | { |
c5fdd383 KH |
7522 | #ifdef MULTI_KBOARD |
7523 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 7524 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 7525 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 7526 | { |
5798cf15 KH |
7527 | if (!NILP (delayed_switch_frame)) |
7528 | { | |
c5fdd383 | 7529 | interrupted_kboard->kbd_queue |
5798cf15 | 7530 | = Fcons (delayed_switch_frame, |
c5fdd383 | 7531 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
7532 | delayed_switch_frame = Qnil; |
7533 | } | |
beecf6a1 | 7534 | while (t > 0) |
c5fdd383 KH |
7535 | interrupted_kboard->kbd_queue |
7536 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
7537 | |
7538 | /* If the side queue is non-empty, ensure it begins with a | |
7539 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 7540 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 7541 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
7542 | !(EVENT_HAS_PARAMETERS (key) |
7543 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
7544 | Qswitch_frame)))) | |
df0f2ba1 KH |
7545 | { |
7546 | Lisp_Object frame; | |
7547 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 7548 | interrupted_kboard->kbd_queue |
df0f2ba1 | 7549 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 7550 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 7551 | } |
beecf6a1 | 7552 | mock_input = 0; |
a6e0153c | 7553 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
7554 | goto replay_sequence; |
7555 | } | |
bded54dd | 7556 | #endif |
beecf6a1 KH |
7557 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
7558 | &used_mouse_menu); | |
7559 | } | |
284f4730 | 7560 | |
dcc408a0 RS |
7561 | /* read_char returns t when it shows a menu and the user rejects it. |
7562 | Just return -1. */ | |
7563 | if (EQ (key, Qt)) | |
7d18f9ae RS |
7564 | { |
7565 | unbind_to (count, Qnil); | |
7566 | return -1; | |
7567 | } | |
dcc408a0 | 7568 | |
f4255cd1 | 7569 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
7570 | Emacs 18 handles this by returning immediately with a |
7571 | zero, so that's what we'll do. */ | |
8c18cbfb | 7572 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 7573 | { |
f4255cd1 | 7574 | t = 0; |
bc536d84 RS |
7575 | /* The Microsoft C compiler can't handle the goto that |
7576 | would go here. */ | |
309b0fc8 | 7577 | dummyflag = 1; |
bc536d84 | 7578 | break; |
cd21b839 | 7579 | } |
df0f2ba1 | 7580 | |
3cb81011 KH |
7581 | /* If the current buffer has been changed from under us, the |
7582 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 7583 | if (BUFFERP (key)) |
3cb81011 KH |
7584 | { |
7585 | mock_input = t; | |
f571ae0d RS |
7586 | /* Reset the current buffer from the selected window |
7587 | in case something changed the former and not the latter. | |
7588 | This is to be more consistent with the behavior | |
7589 | of the command_loop_1. */ | |
7590 | if (fix_current_buffer) | |
a94a4335 | 7591 | { |
788f89eb | 7592 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
7593 | Fkill_emacs (Qnil); |
7594 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
7595 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
7596 | } | |
f571ae0d | 7597 | |
a6e0153c | 7598 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
7599 | goto replay_sequence; |
7600 | } | |
7601 | ||
3b9189f8 RS |
7602 | /* If we have a quit that was typed in another frame, and |
7603 | quit_throw_to_read_char switched buffers, | |
7604 | replay to get the right keymap. */ | |
9343ab07 | 7605 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 | 7606 | { |
7d18f9ae RS |
7607 | GROW_RAW_KEYBUF; |
7608 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
7609 | keybuf[t++] = key; |
7610 | mock_input = t; | |
7611 | Vquit_flag = Qnil; | |
a6e0153c | 7612 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
7613 | goto replay_sequence; |
7614 | } | |
3cb81011 | 7615 | |
284f4730 | 7616 | Vquit_flag = Qnil; |
7d18f9ae RS |
7617 | |
7618 | if (EVENT_HAS_PARAMETERS (key) | |
7619 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
7620 | { | |
7621 | /* If we're at the beginning of a key sequence, and the caller | |
7622 | says it's okay, go ahead and return this event. If we're | |
7623 | in the midst of a key sequence, delay it until the end. */ | |
7624 | if (t > 0 || !can_return_switch_frame) | |
7625 | { | |
7626 | delayed_switch_frame = key; | |
7627 | goto replay_key; | |
7628 | } | |
7629 | } | |
7630 | ||
7631 | GROW_RAW_KEYBUF; | |
7632 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 7633 | } |
284f4730 | 7634 | |
df0f2ba1 | 7635 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
7636 | in their CHAR-ADDRESS field. For example, a click on |
7637 | the mode line is prefixed by the symbol `mode-line'. | |
7638 | ||
7639 | Furthermore, key sequences beginning with mouse clicks | |
7640 | are read using the keymaps of the buffer clicked on, not | |
7641 | the current buffer. So we may have to switch the buffer | |
7642 | here. | |
7643 | ||
7644 | When we turn one event into two events, we must make sure | |
7645 | that neither of the two looks like the original--so that, | |
7646 | if we replay the events, they won't be expanded again. | |
7647 | If not for this, such reexpansion could happen either here | |
7648 | or when user programs play with this-command-keys. */ | |
7649 | if (EVENT_HAS_PARAMETERS (key)) | |
7650 | { | |
9b8eb840 | 7651 | Lisp_Object kind; |
cca310da | 7652 | |
9b8eb840 | 7653 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 7654 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 7655 | { |
9b8eb840 | 7656 | Lisp_Object window, posn; |
f4255cd1 | 7657 | |
9b8eb840 KH |
7658 | window = POSN_WINDOW (EVENT_START (key)); |
7659 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 7660 | |
8c18cbfb | 7661 | if (CONSP (posn)) |
0a7f1fc0 | 7662 | { |
7e85b935 RS |
7663 | /* We're looking at the second event of a |
7664 | sequence which we expanded before. Set | |
7665 | last_real_key_start appropriately. */ | |
7666 | if (t > 0) | |
7667 | last_real_key_start = t - 1; | |
cd21b839 | 7668 | } |
7e85b935 RS |
7669 | |
7670 | /* Key sequences beginning with mouse clicks are | |
7671 | read using the keymaps in the buffer clicked on, | |
7672 | not the current buffer. If we're at the | |
7673 | beginning of a key sequence, switch buffers. */ | |
7674 | if (last_real_key_start == 0 | |
8c18cbfb KH |
7675 | && WINDOWP (window) |
7676 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 7677 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 7678 | { |
7d18f9ae | 7679 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
7680 | keybuf[t] = key; |
7681 | mock_input = t + 1; | |
7682 | ||
7683 | /* Arrange to go back to the original buffer once we're | |
7684 | done reading the key sequence. Note that we can't | |
7685 | use save_excursion_{save,restore} here, because they | |
7686 | save point as well as the current buffer; we don't | |
7687 | want to save point, because redisplay may change it, | |
7688 | to accommodate a Fset_window_start or something. We | |
7689 | don't want to do this at the top of the function, | |
7690 | because we may get input from a subprocess which | |
7691 | wants to change the selected window and stuff (say, | |
7692 | emacsclient). */ | |
7693 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
7694 | ||
788f89eb | 7695 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 7696 | Fkill_emacs (Qnil); |
7e85b935 | 7697 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
e0dff5f6 | 7698 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 7699 | goto replay_sequence; |
0a7f1fc0 | 7700 | } |
7ee32cda | 7701 | |
e0dff5f6 RS |
7702 | /* For a mouse click, get the local text-property keymap |
7703 | of the place clicked on, rather than point. */ | |
7ee32cda | 7704 | if (last_real_key_start == 0 |
7539e11f | 7705 | && CONSP (XCDR (key)) |
e0dff5f6 | 7706 | && ! localized_local_map) |
5ec75a55 | 7707 | { |
e0dff5f6 RS |
7708 | Lisp_Object map_here, start, pos; |
7709 | ||
7710 | localized_local_map = 1; | |
7711 | start = EVENT_START (key); | |
7ee32cda | 7712 | |
7539e11f | 7713 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
7714 | { |
7715 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
7716 | if (INTEGERP (pos) |
7717 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
7718 | { |
7719 | map_here = get_local_map (XINT (pos), current_buffer); | |
7720 | if (!EQ (map_here, orig_local_map)) | |
7721 | { | |
7722 | orig_local_map = map_here; | |
7723 | keybuf[t] = key; | |
7724 | mock_input = t + 1; | |
5ec75a55 | 7725 | |
e0dff5f6 RS |
7726 | goto replay_sequence; |
7727 | } | |
7728 | } | |
7729 | } | |
7730 | } | |
7731 | ||
7732 | /* Expand mode-line and scroll-bar events into two events: | |
7733 | use posn as a fake prefix key. */ | |
7734 | if (SYMBOLP (posn)) | |
7735 | { | |
7e85b935 | 7736 | if (t + 1 >= bufsize) |
3fe8e9a2 | 7737 | error ("Key sequence too long"); |
7e85b935 RS |
7738 | keybuf[t] = posn; |
7739 | keybuf[t+1] = key; | |
7740 | mock_input = t + 2; | |
7ee32cda | 7741 | |
7e85b935 RS |
7742 | /* Zap the position in key, so we know that we've |
7743 | expanded it, and don't try to do so again. */ | |
7744 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7745 | = Fcons (posn, Qnil); | |
7ee32cda GM |
7746 | |
7747 | /* If on a mode line string with a local keymap, | |
7748 | reconsider the key sequence with that keymap. */ | |
7749 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
7750 | { | |
7751 | Lisp_Object string, pos, map; | |
7752 | ||
7753 | string = POSN_STRING (EVENT_START (key)); | |
7754 | pos = XCDR (string); | |
7755 | string = XCAR (string); | |
7756 | ||
7757 | if (pos >= 0 | |
7758 | && pos < XSTRING (string)->size | |
7759 | && (map = Fget_text_property (pos, Qlocal_map, | |
7760 | string), | |
7761 | !NILP (map))) | |
7762 | { | |
7763 | orig_local_map = map; | |
7764 | goto replay_sequence; | |
7765 | } | |
7766 | } | |
7767 | ||
7e85b935 | 7768 | goto replay_key; |
5ec75a55 | 7769 | } |
0a7f1fc0 | 7770 | } |
7539e11f | 7771 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 7772 | && CONSP (EVENT_START (key)) |
7539e11f | 7773 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 7774 | { |
9b8eb840 | 7775 | Lisp_Object posn; |
7e85b935 | 7776 | |
9b8eb840 | 7777 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
7778 | /* Handle menu-bar events: |
7779 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 7780 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
7781 | { |
7782 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 7783 | error ("Key sequence too long"); |
7e85b935 RS |
7784 | keybuf[t] = posn; |
7785 | keybuf[t+1] = key; | |
7786 | ||
7787 | /* Zap the position in key, so we know that we've | |
7788 | expanded it, and don't try to do so again. */ | |
7789 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7790 | = Fcons (posn, Qnil); | |
7791 | ||
7792 | mock_input = t + 2; | |
7793 | goto replay_sequence; | |
7794 | } | |
8c18cbfb | 7795 | else if (CONSP (posn)) |
7e85b935 RS |
7796 | { |
7797 | /* We're looking at the second event of a | |
7798 | sequence which we expanded before. Set | |
7799 | last_real_key_start appropriately. */ | |
7800 | if (last_real_key_start == t && t > 0) | |
7801 | last_real_key_start = t - 1; | |
7802 | } | |
a6d53864 | 7803 | } |
284f4730 | 7804 | } |
f4255cd1 JB |
7805 | |
7806 | /* We have finally decided that KEY is something we might want | |
7807 | to look up. */ | |
284f4730 JB |
7808 | first_binding = (follow_key (key, |
7809 | nmaps - first_binding, | |
253598e4 | 7810 | submaps + first_binding, |
284f4730 | 7811 | defs + first_binding, |
4e50f26a | 7812 | submaps + first_binding) |
284f4730 | 7813 | + first_binding); |
0a7f1fc0 | 7814 | |
f4255cd1 | 7815 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
7816 | if (first_binding >= nmaps) |
7817 | { | |
9b8eb840 | 7818 | Lisp_Object head; |
0a7f1fc0 | 7819 | |
9b8eb840 | 7820 | head = EVENT_HEAD (key); |
24736fbc | 7821 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
7822 | { |
7823 | read_key_sequence_cmd = Vprefix_help_command; | |
7824 | keybuf[t++] = key; | |
7825 | last_nonmenu_event = key; | |
bc536d84 RS |
7826 | /* The Microsoft C compiler can't handle the goto that |
7827 | would go here. */ | |
309b0fc8 | 7828 | dummyflag = 1; |
0d882d52 | 7829 | break; |
7e85b935 RS |
7830 | } |
7831 | ||
8c18cbfb | 7832 | if (SYMBOLP (head)) |
0a7f1fc0 | 7833 | { |
9b8eb840 KH |
7834 | Lisp_Object breakdown; |
7835 | int modifiers; | |
0a7f1fc0 | 7836 | |
9b8eb840 | 7837 | breakdown = parse_modifiers (head); |
7539e11f | 7838 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
7839 | /* Attempt to reduce an unbound mouse event to a simpler |
7840 | event that is bound: | |
7841 | Drags reduce to clicks. | |
7842 | Double-clicks reduce to clicks. | |
7843 | Triple-clicks reduce to double-clicks, then to clicks. | |
7844 | Down-clicks are eliminated. | |
7845 | Double-downs reduce to downs, then are eliminated. | |
7846 | Triple-downs reduce to double-downs, then to downs, | |
7847 | then are eliminated. */ | |
7848 | if (modifiers & (down_modifier | drag_modifier | |
7849 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 7850 | { |
559f9d04 RS |
7851 | while (modifiers & (down_modifier | drag_modifier |
7852 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
7853 | { |
7854 | Lisp_Object new_head, new_click; | |
7855 | if (modifiers & triple_modifier) | |
7856 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
7857 | else if (modifiers & double_modifier) |
7858 | modifiers &= ~double_modifier; | |
7859 | else if (modifiers & drag_modifier) | |
7860 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
7861 | else |
7862 | { | |
7863 | /* Dispose of this `down' event by simply jumping | |
7864 | back to replay_key, to get another event. | |
7865 | ||
7866 | Note that if this event came from mock input, | |
7867 | then just jumping back to replay_key will just | |
7868 | hand it to us again. So we have to wipe out any | |
7869 | mock input. | |
7870 | ||
7871 | We could delete keybuf[t] and shift everything | |
7872 | after that to the left by one spot, but we'd also | |
7873 | have to fix up any variable that points into | |
7874 | keybuf, and shifting isn't really necessary | |
7875 | anyway. | |
7876 | ||
7877 | Adding prefixes for non-textual mouse clicks | |
7878 | creates two characters of mock input, and both | |
7879 | must be thrown away. If we're only looking at | |
7880 | the prefix now, we can just jump back to | |
7881 | replay_key. On the other hand, if we've already | |
7882 | processed the prefix, and now the actual click | |
7883 | itself is giving us trouble, then we've lost the | |
7884 | state of the keymaps we want to backtrack to, and | |
7885 | we need to replay the whole sequence to rebuild | |
7886 | it. | |
7887 | ||
7888 | Beyond that, only function key expansion could | |
7889 | create more than two keys, but that should never | |
7890 | generate mouse events, so it's okay to zero | |
7891 | mock_input in that case too. | |
7892 | ||
7893 | Isn't this just the most wonderful code ever? */ | |
7894 | if (t == last_real_key_start) | |
7895 | { | |
7896 | mock_input = 0; | |
7897 | goto replay_key; | |
7898 | } | |
7899 | else | |
7900 | { | |
7901 | mock_input = last_real_key_start; | |
7902 | goto replay_sequence; | |
7903 | } | |
7904 | } | |
7905 | ||
27203ead | 7906 | new_head |
7539e11f | 7907 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
7908 | new_click |
7909 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
7910 | |
7911 | /* Look for a binding for this new key. follow_key | |
7912 | promises that it didn't munge submaps the | |
7913 | last time we called it, since key was unbound. */ | |
27203ead RS |
7914 | first_binding |
7915 | = (follow_key (new_click, | |
7916 | nmaps - local_first_binding, | |
7917 | submaps + local_first_binding, | |
7918 | defs + local_first_binding, | |
4e50f26a | 7919 | submaps + local_first_binding) |
27203ead | 7920 | + local_first_binding); |
fbcd35bd JB |
7921 | |
7922 | /* If that click is bound, go for it. */ | |
7923 | if (first_binding < nmaps) | |
7924 | { | |
7925 | key = new_click; | |
7926 | break; | |
7927 | } | |
7928 | /* Otherwise, we'll leave key set to the drag event. */ | |
7929 | } | |
0a7f1fc0 JB |
7930 | } |
7931 | } | |
7932 | } | |
7933 | ||
284f4730 | 7934 | keybuf[t++] = key; |
7d6de002 RS |
7935 | /* Normally, last_nonmenu_event gets the previous key we read. |
7936 | But when a mouse popup menu is being used, | |
7937 | we don't update last_nonmenu_event; it continues to hold the mouse | |
7938 | event that preceded the first level of menu. */ | |
7939 | if (!used_mouse_menu) | |
7940 | last_nonmenu_event = key; | |
284f4730 | 7941 | |
6321824f RS |
7942 | /* Record what part of this_command_keys is the current key sequence. */ |
7943 | this_single_command_key_start = this_command_key_count - t; | |
7944 | ||
3fe8e9a2 RS |
7945 | prev_fkey_map = fkey_map; |
7946 | prev_fkey_start = fkey_start; | |
7947 | prev_fkey_end = fkey_end; | |
7948 | ||
7949 | prev_keytran_map = keytran_map; | |
7950 | prev_keytran_start = keytran_start; | |
7951 | prev_keytran_end = keytran_end; | |
7952 | ||
284f4730 | 7953 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
7954 | off the end of it. We only want to scan real keyboard input |
7955 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 7956 | re-reading old events, don't examine it. */ |
4e50f26a | 7957 | if (first_binding >= nmaps |
253598e4 | 7958 | && t >= mock_input) |
284f4730 JB |
7959 | { |
7960 | Lisp_Object fkey_next; | |
7961 | ||
e9bf89a0 RS |
7962 | /* Continue scan from fkey_end until we find a bound suffix. |
7963 | If we fail, increment fkey_start | |
7964 | and start fkey_end from there. */ | |
284f4730 JB |
7965 | while (fkey_end < t) |
7966 | { | |
f4255cd1 JB |
7967 | Lisp_Object key; |
7968 | ||
7969 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
7970 | /* Look up meta-characters by prefixing them |
7971 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 7972 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 7973 | { |
e74fbc70 RS |
7974 | fkey_next |
7975 | = get_keymap_1 | |
f4255cd1 | 7976 | (get_keyelt |
c6a67acd | 7977 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 7978 | 0, 1); |
bb9e9bed | 7979 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 7980 | } |
067ffa38 JB |
7981 | else |
7982 | fkey_next = fkey_map; | |
7983 | ||
e74fbc70 | 7984 | fkey_next |
c700c260 RS |
7985 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 1); |
7986 | ||
7987 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
7988 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
7989 | && CONSP (XSYMBOL (fkey_next)->function) | |
7539e11f | 7990 | && EQ (XCAR (XSYMBOL (fkey_next)->function), Qautoload)) |
0afc861b RS |
7991 | do_autoload (XSYMBOL (fkey_next)->function, |
7992 | fkey_next); | |
c700c260 RS |
7993 | |
7994 | /* Handle a symbol whose function definition is a keymap | |
7995 | or an array. */ | |
0afc861b RS |
7996 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
7997 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
7998 | || !NILP (Fkeymapp (XSYMBOL (fkey_next)->function)))) | |
7999 | fkey_next = XSYMBOL (fkey_next)->function; | |
067ffa38 | 8000 | |
7a80a6f6 RS |
8001 | #if 0 /* I didn't turn this on, because it might cause trouble |
8002 | for the mapping of return into C-m and tab into C-i. */ | |
8003 | /* Optionally don't map function keys into other things. | |
8004 | This enables the user to redefine kp- keys easily. */ | |
8005 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8006 | fkey_next = Qnil; | |
8007 | #endif | |
8008 | ||
1abe6abe RS |
8009 | /* If the function key map gives a function, not an |
8010 | array, then call the function with no args and use | |
8011 | its value instead. */ | |
8012 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8013 | && fkey_end == t) | |
8014 | { | |
8015 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8016 | Lisp_Object tem; | |
8017 | tem = fkey_next; | |
8018 | ||
8019 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8020 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8021 | UNGCPRO; |
8022 | /* If the function returned something invalid, | |
8023 | barf--don't ignore it. | |
df0f2ba1 | 8024 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8025 | other variables.) */ |
8026 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8027 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8028 | } |
8029 | ||
e9bf89a0 RS |
8030 | function_key_possible = ! NILP (fkey_next); |
8031 | ||
85bc5181 | 8032 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8033 | function key map and it's a suffix of the current |
85bc5181 | 8034 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8035 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8036 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8037 | && fkey_end == t) |
8038 | { | |
2e864a76 | 8039 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8040 | |
8041 | t = fkey_start + len; | |
284f4730 | 8042 | if (t >= bufsize) |
3fe8e9a2 | 8043 | error ("Key sequence too long"); |
284f4730 | 8044 | |
f5ea6163 JB |
8045 | if (VECTORP (fkey_next)) |
8046 | bcopy (XVECTOR (fkey_next)->contents, | |
8047 | keybuf + fkey_start, | |
8048 | (t - fkey_start) * sizeof (keybuf[0])); | |
8049 | else if (STRINGP (fkey_next)) | |
8050 | { | |
8051 | int i; | |
8052 | ||
8053 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8054 | XSETFASTINT (keybuf[fkey_start + i], |
8055 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8056 | } |
df0f2ba1 | 8057 | |
284f4730 JB |
8058 | mock_input = t; |
8059 | fkey_start = fkey_end = t; | |
32e6d806 | 8060 | fkey_map = Vfunction_key_map; |
284f4730 | 8061 | |
3bd0dffb KH |
8062 | /* Do pass the results through key-translation-map. |
8063 | But don't retranslate what key-translation-map | |
8064 | has already translated. */ | |
8065 | keytran_end = keytran_start; | |
00a78037 RS |
8066 | keytran_map = Vkey_translation_map; |
8067 | ||
f4255cd1 | 8068 | goto replay_sequence; |
284f4730 | 8069 | } |
df0f2ba1 | 8070 | |
f4255cd1 | 8071 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 8072 | |
df0f2ba1 | 8073 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8074 | fkey_start. */ |
284f4730 JB |
8075 | if (NILP (fkey_map)) |
8076 | { | |
8077 | fkey_end = ++fkey_start; | |
8078 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8079 | function_key_possible = 0; |
284f4730 JB |
8080 | } |
8081 | } | |
8082 | } | |
a612e298 RS |
8083 | |
8084 | /* Look for this sequence in key-translation-map. */ | |
8085 | { | |
8086 | Lisp_Object keytran_next; | |
8087 | ||
8088 | /* Scan from keytran_end until we find a bound suffix. */ | |
8089 | while (keytran_end < t) | |
8090 | { | |
8091 | Lisp_Object key; | |
8092 | ||
8093 | key = keybuf[keytran_end++]; | |
8094 | /* Look up meta-characters by prefixing them | |
8095 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 8096 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
8097 | { |
8098 | keytran_next | |
8099 | = get_keymap_1 | |
8100 | (get_keyelt | |
c6a67acd | 8101 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 8102 | 0, 1); |
bb9e9bed | 8103 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
8104 | } |
8105 | else | |
8106 | keytran_next = keytran_map; | |
8107 | ||
8108 | keytran_next | |
e83f6bb0 | 8109 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 1); |
a612e298 | 8110 | |
c700c260 | 8111 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8112 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8113 | && CONSP (XSYMBOL (keytran_next)->function) | |
7539e11f | 8114 | && EQ (XCAR (XSYMBOL (keytran_next)->function), Qautoload)) |
e83f6bb0 RS |
8115 | do_autoload (XSYMBOL (keytran_next)->function, |
8116 | keytran_next); | |
8117 | ||
c700c260 RS |
8118 | /* Handle a symbol whose function definition is a keymap |
8119 | or an array. */ | |
e83f6bb0 | 8120 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 RS |
8121 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
8122 | || !NILP (Fkeymapp (XSYMBOL (keytran_next)->function)))) | |
e83f6bb0 RS |
8123 | keytran_next = XSYMBOL (keytran_next)->function; |
8124 | ||
1abe6abe | 8125 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8126 | array, then call the function with one arg and use |
1abe6abe RS |
8127 | its value instead. */ |
8128 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8129 | && keytran_end == t) | |
8130 | { | |
8131 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8132 | Lisp_Object tem; | |
8133 | tem = keytran_next; | |
8134 | ||
40932d1a | 8135 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8136 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8137 | UNGCPRO; |
8138 | /* If the function returned something invalid, | |
8139 | barf--don't ignore it. | |
df0f2ba1 | 8140 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8141 | other variables.) */ |
8142 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8143 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8144 | } |
8145 | ||
00a78037 RS |
8146 | key_translation_possible = ! NILP (keytran_next); |
8147 | ||
a612e298 | 8148 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8149 | key translation map and it's a suffix of the current |
a612e298 RS |
8150 | sequence (i.e. keytran_end == t), replace it with |
8151 | the binding and restart with keytran_start at the end. */ | |
8152 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8153 | && keytran_end == t) | |
8154 | { | |
2e864a76 | 8155 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8156 | |
8157 | t = keytran_start + len; | |
8158 | if (t >= bufsize) | |
3fe8e9a2 | 8159 | error ("Key sequence too long"); |
a612e298 RS |
8160 | |
8161 | if (VECTORP (keytran_next)) | |
8162 | bcopy (XVECTOR (keytran_next)->contents, | |
8163 | keybuf + keytran_start, | |
8164 | (t - keytran_start) * sizeof (keybuf[0])); | |
8165 | else if (STRINGP (keytran_next)) | |
8166 | { | |
8167 | int i; | |
8168 | ||
8169 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8170 | XSETFASTINT (keybuf[keytran_start + i], |
8171 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8172 | } |
8173 | ||
8174 | mock_input = t; | |
8175 | keytran_start = keytran_end = t; | |
8176 | keytran_map = Vkey_translation_map; | |
8177 | ||
00a78037 RS |
8178 | /* Don't pass the results of key-translation-map |
8179 | through function-key-map. */ | |
8180 | fkey_start = fkey_end = t; | |
3bd0dffb | 8181 | fkey_map = Vfunction_key_map; |
00a78037 | 8182 | |
a612e298 RS |
8183 | goto replay_sequence; |
8184 | } | |
8185 | ||
8186 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
8187 | ||
df0f2ba1 | 8188 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
8189 | keytran_start. */ |
8190 | if (NILP (keytran_map)) | |
8191 | { | |
8192 | keytran_end = ++keytran_start; | |
8193 | keytran_map = Vkey_translation_map; | |
00a78037 | 8194 | key_translation_possible = 0; |
a612e298 RS |
8195 | } |
8196 | } | |
8197 | } | |
4e50f26a RS |
8198 | |
8199 | /* If KEY is not defined in any of the keymaps, | |
8200 | and cannot be part of a function key or translation, | |
8201 | and is an upper case letter | |
8202 | use the corresponding lower-case letter instead. */ | |
8203 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 8204 | && ! key_translation_possible |
8c18cbfb | 8205 | && INTEGERP (key) |
4e50f26a | 8206 | && ((((XINT (key) & 0x3ffff) |
301738ed | 8207 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
8208 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
8209 | || (XINT (key) & shift_modifier))) | |
8210 | { | |
569871d2 | 8211 | Lisp_Object new_key; |
569871d2 | 8212 | |
309b0fc8 RS |
8213 | original_uppercase = key; |
8214 | original_uppercase_position = t - 1; | |
8215 | ||
831f35a2 | 8216 | if (XINT (key) & shift_modifier) |
569871d2 | 8217 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 8218 | else |
569871d2 RS |
8219 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
8220 | | (XINT (key) & ~0x3ffff))); | |
8221 | ||
3fe8e9a2 RS |
8222 | /* We have to do this unconditionally, regardless of whether |
8223 | the lower-case char is defined in the keymaps, because they | |
8224 | might get translated through function-key-map. */ | |
8225 | keybuf[t - 1] = new_key; | |
8226 | mock_input = t; | |
8227 | ||
8228 | fkey_map = prev_fkey_map; | |
8229 | fkey_start = prev_fkey_start; | |
8230 | fkey_end = prev_fkey_end; | |
8231 | ||
8232 | keytran_map = prev_keytran_map; | |
8233 | keytran_start = prev_keytran_start; | |
8234 | keytran_end = prev_keytran_end; | |
8235 | ||
8236 | goto replay_sequence; | |
4e50f26a | 8237 | } |
ef8fd672 RS |
8238 | /* If KEY is not defined in any of the keymaps, |
8239 | and cannot be part of a function key or translation, | |
8240 | and is a shifted function key, | |
8241 | use the corresponding unshifted function key instead. */ | |
8242 | if (first_binding == nmaps && ! function_key_possible | |
8243 | && ! key_translation_possible | |
8244 | && SYMBOLP (key)) | |
8245 | { | |
8246 | Lisp_Object breakdown; | |
8247 | int modifiers; | |
8248 | ||
8249 | breakdown = parse_modifiers (key); | |
7539e11f | 8250 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
8251 | if (modifiers & shift_modifier) |
8252 | { | |
569871d2 | 8253 | Lisp_Object new_key; |
3fe8e9a2 RS |
8254 | |
8255 | original_uppercase = key; | |
8256 | original_uppercase_position = t - 1; | |
ef8fd672 | 8257 | |
569871d2 RS |
8258 | modifiers &= ~shift_modifier; |
8259 | new_key = apply_modifiers (modifiers, | |
7539e11f | 8260 | XCAR (breakdown)); |
569871d2 | 8261 | |
3fe8e9a2 RS |
8262 | keybuf[t - 1] = new_key; |
8263 | mock_input = t; | |
8264 | ||
8265 | fkey_map = prev_fkey_map; | |
8266 | fkey_start = prev_fkey_start; | |
8267 | fkey_end = prev_fkey_end; | |
8268 | ||
8269 | keytran_map = prev_keytran_map; | |
8270 | keytran_start = prev_keytran_start; | |
8271 | keytran_end = prev_keytran_end; | |
8272 | ||
8273 | goto replay_sequence; | |
ef8fd672 RS |
8274 | } |
8275 | } | |
284f4730 JB |
8276 | } |
8277 | ||
309b0fc8 | 8278 | if (!dummyflag) |
bc536d84 RS |
8279 | read_key_sequence_cmd = (first_binding < nmaps |
8280 | ? defs[first_binding] | |
8281 | : Qnil); | |
284f4730 | 8282 | |
cd21b839 | 8283 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 8284 | unbind_to (count, Qnil); |
07f76a14 | 8285 | |
3fe8e9a2 RS |
8286 | /* Don't downcase the last character if the caller says don't. |
8287 | Don't downcase it if the result is undefined, either. */ | |
8288 | if ((dont_downcase_last || first_binding >= nmaps) | |
8289 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
8290 | keybuf[t - 1] = original_uppercase; |
8291 | ||
07f76a14 JB |
8292 | /* Occasionally we fabricate events, perhaps by expanding something |
8293 | according to function-key-map, or by adding a prefix symbol to a | |
8294 | mouse click in the scroll bar or modeline. In this cases, return | |
8295 | the entire generated key sequence, even if we hit an unbound | |
8296 | prefix or a definition before the end. This means that you will | |
8297 | be able to push back the event properly, and also means that | |
8298 | read-key-sequence will always return a logical unit. | |
8299 | ||
8300 | Better ideas? */ | |
cca310da JB |
8301 | for (; t < mock_input; t++) |
8302 | { | |
a98ea3f9 RS |
8303 | if (echo_keystrokes) |
8304 | echo_char (keybuf[t]); | |
cca310da JB |
8305 | add_command_key (keybuf[t]); |
8306 | } | |
07f76a14 | 8307 | |
7d18f9ae RS |
8308 | |
8309 | ||
284f4730 JB |
8310 | return t; |
8311 | } | |
8312 | ||
a612e298 RS |
8313 | #if 0 /* This doc string is too long for some compilers. |
8314 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8315 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8316 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8317 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8318 | current local and global maps.\n\ | |
8319 | \n\ | |
c0a58692 RS |
8320 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8321 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8322 | as a continuation of the previous key.\n\ | |
284f4730 | 8323 | \n\ |
309b0fc8 RS |
8324 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8325 | convert the last event to lower case. (Normally any upper case event\n\ | |
8326 | is converted to lower case if the original event is undefined and the lower\n\ | |
8327 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
8328 | a key sequence to be defined.\n\ | |
8329 | \n\ | |
cb5df6ae JB |
8330 | A C-g typed while in this function is treated like any other character,\n\ |
8331 | and `quit-flag' is not set.\n\ | |
8332 | \n\ | |
8333 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
8334 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
8335 | of the selected window as normal.\n\ | |
ede41463 | 8336 | ""\n\ |
cb5df6ae JB |
8337 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
8338 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
8339 | or multi-click event is unbound, but the corresponding click event would\n\ |
8340 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 8341 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 8342 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
8343 | \n\ |
8344 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
8345 | lines separating windows, and scroll bars with imaginary keys\n\ |
8346 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 8347 | \n\ |
ce98e608 KH |
8348 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
8349 | function will process a switch-frame event if the user switches frames\n\ | |
8350 | before typing anything. If the user switches frames in the middle of a\n\ | |
8351 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
8352 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
8353 | \n\ |
8354 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
8355 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
8356 | `function-key-map' for more details.\n\ |
8357 | \n\ | |
8358 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
8359 | that this key sequence is being read by something that will\n\ | |
8360 | read commands one after another. It should be nil if the caller\n\ | |
8361 | will read just one key sequence.") | |
b638f328 | 8362 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
8363 | #endif |
8364 | ||
d5eecefb | 8365 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 8366 | 0) |
d5eecefb RS |
8367 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8368 | command_loop) | |
309b0fc8 | 8369 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8370 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
8371 | { |
8372 | Lisp_Object keybuf[30]; | |
8373 | register int i; | |
03cee6ae | 8374 | struct gcpro gcpro1; |
d5eecefb | 8375 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
8376 | |
8377 | if (!NILP (prompt)) | |
8378 | CHECK_STRING (prompt, 0); | |
8379 | QUIT; | |
8380 | ||
d5eecefb RS |
8381 | specbind (Qinput_method_exit_on_first_char, |
8382 | (NILP (command_loop) ? Qt : Qnil)); | |
8383 | specbind (Qinput_method_use_echo_area, | |
8384 | (NILP (command_loop) ? Qt : Qnil)); | |
8385 | ||
284f4730 JB |
8386 | bzero (keybuf, sizeof keybuf); |
8387 | GCPRO1 (keybuf[0]); | |
8388 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8389 | ||
daa37602 | 8390 | if (NILP (continue_echo)) |
6321824f RS |
8391 | { |
8392 | this_command_key_count = 0; | |
8393 | this_single_command_key_start = 0; | |
8394 | } | |
c0a58692 | 8395 | |
309b0fc8 | 8396 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 8397 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 8398 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 8399 | |
dcc408a0 RS |
8400 | if (i == -1) |
8401 | { | |
8402 | Vquit_flag = Qt; | |
8403 | QUIT; | |
8404 | } | |
284f4730 | 8405 | UNGCPRO; |
d5eecefb | 8406 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 8407 | } |
e39da3d7 RS |
8408 | |
8409 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 8410 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 8411 | "Like `read-key-sequence' but always return a vector.") |
d5eecefb RS |
8412 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8413 | command_loop) | |
e39da3d7 | 8414 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8415 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
8416 | { |
8417 | Lisp_Object keybuf[30]; | |
8418 | register int i; | |
03cee6ae | 8419 | struct gcpro gcpro1; |
d5eecefb | 8420 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
8421 | |
8422 | if (!NILP (prompt)) | |
8423 | CHECK_STRING (prompt, 0); | |
8424 | QUIT; | |
8425 | ||
d5eecefb RS |
8426 | specbind (Qinput_method_exit_on_first_char, |
8427 | (NILP (command_loop) ? Qt : Qnil)); | |
8428 | specbind (Qinput_method_use_echo_area, | |
8429 | (NILP (command_loop) ? Qt : Qnil)); | |
8430 | ||
e39da3d7 RS |
8431 | bzero (keybuf, sizeof keybuf); |
8432 | GCPRO1 (keybuf[0]); | |
8433 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8434 | ||
8435 | if (NILP (continue_echo)) | |
8436 | { | |
8437 | this_command_key_count = 0; | |
8438 | this_single_command_key_start = 0; | |
8439 | } | |
8440 | ||
8441 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), | |
8442 | prompt, ! NILP (dont_downcase_last), | |
8443 | ! NILP (can_return_switch_frame), 0); | |
8444 | ||
8445 | if (i == -1) | |
8446 | { | |
8447 | Vquit_flag = Qt; | |
8448 | QUIT; | |
8449 | } | |
8450 | UNGCPRO; | |
d5eecefb | 8451 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 8452 | } |
284f4730 | 8453 | \f |
158f7532 | 8454 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
8455 | "Execute CMD as an editor command.\n\ |
8456 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
8457 | Optional second arg RECORD-FLAG non-nil\n\ | |
8458 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
8459 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
8460 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 8461 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
8462 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
8463 | a special event, so ignore the prefix argument and don't clear it.") | |
8464 | (cmd, record_flag, keys, special) | |
8465 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
8466 | { |
8467 | register Lisp_Object final; | |
8468 | register Lisp_Object tem; | |
8469 | Lisp_Object prefixarg; | |
8470 | struct backtrace backtrace; | |
8471 | extern int debug_on_next_call; | |
8472 | ||
284f4730 JB |
8473 | debug_on_next_call = 0; |
8474 | ||
158f7532 RS |
8475 | if (NILP (special)) |
8476 | { | |
8477 | prefixarg = current_kboard->Vprefix_arg; | |
8478 | Vcurrent_prefix_arg = prefixarg; | |
8479 | current_kboard->Vprefix_arg = Qnil; | |
8480 | } | |
8481 | else | |
8482 | prefixarg = Qnil; | |
8483 | ||
8c18cbfb | 8484 | if (SYMBOLP (cmd)) |
284f4730 JB |
8485 | { |
8486 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 8487 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
8488 | { |
8489 | tem = Fsymbol_value (Qdisabled_command_hook); | |
8490 | if (!NILP (tem)) | |
8491 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
8492 | } | |
284f4730 JB |
8493 | } |
8494 | ||
01e26217 | 8495 | while (1) |
284f4730 | 8496 | { |
ffd56f97 | 8497 | final = Findirect_function (cmd); |
284f4730 JB |
8498 | |
8499 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
8500 | { |
8501 | struct gcpro gcpro1, gcpro2; | |
8502 | ||
8503 | GCPRO2 (cmd, prefixarg); | |
8504 | do_autoload (final, cmd); | |
8505 | UNGCPRO; | |
8506 | } | |
284f4730 JB |
8507 | else |
8508 | break; | |
8509 | } | |
8510 | ||
8c18cbfb | 8511 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
8512 | { |
8513 | /* If requested, place the macro in the command history. For | |
8514 | other sorts of commands, call-interactively takes care of | |
8515 | this. */ | |
e57d8fd8 | 8516 | if (!NILP (record_flag)) |
f4385381 RS |
8517 | { |
8518 | Vcommand_history | |
8519 | = Fcons (Fcons (Qexecute_kbd_macro, | |
8520 | Fcons (final, Fcons (prefixarg, Qnil))), | |
8521 | Vcommand_history); | |
8522 | ||
8523 | /* Don't keep command history around forever. */ | |
8524 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
8525 | { | |
8526 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
8527 | if (CONSP (tem)) | |
7539e11f | 8528 | XCDR (tem) = Qnil; |
f4385381 RS |
8529 | } |
8530 | } | |
284f4730 JB |
8531 | |
8532 | return Fexecute_kbd_macro (final, prefixarg); | |
8533 | } | |
f4385381 | 8534 | |
8c18cbfb | 8535 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
8536 | { |
8537 | backtrace.next = backtrace_list; | |
8538 | backtrace_list = &backtrace; | |
8539 | backtrace.function = &Qcall_interactively; | |
8540 | backtrace.args = &cmd; | |
8541 | backtrace.nargs = 1; | |
8542 | backtrace.evalargs = 0; | |
8543 | ||
e57d8fd8 | 8544 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
8545 | |
8546 | backtrace_list = backtrace.next; | |
8547 | return tem; | |
8548 | } | |
8549 | return Qnil; | |
8550 | } | |
8551 | \f | |
284f4730 JB |
8552 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
8553 | 1, 1, "P", | |
8554 | "Read function name, then read its arguments and call it.") | |
8555 | (prefixarg) | |
8556 | Lisp_Object prefixarg; | |
8557 | { | |
8558 | Lisp_Object function; | |
8559 | char buf[40]; | |
8560 | Lisp_Object saved_keys; | |
5434fce6 | 8561 | Lisp_Object bindings, value; |
214360e9 | 8562 | struct gcpro gcpro1, gcpro2; |
284f4730 | 8563 | |
b0f2a7bf KH |
8564 | saved_keys = Fvector (this_command_key_count, |
8565 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 8566 | buf[0] = 0; |
fde7aff8 | 8567 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
8568 | |
8569 | if (EQ (prefixarg, Qminus)) | |
8570 | strcpy (buf, "- "); | |
7539e11f | 8571 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 8572 | strcpy (buf, "C-u "); |
7539e11f | 8573 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
8574 | { |
8575 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 8576 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 8577 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 8578 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
8579 | else |
8580 | abort (); | |
8581 | } | |
8c18cbfb | 8582 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
8583 | { |
8584 | if (sizeof (int) == sizeof (EMACS_INT)) | |
8585 | sprintf (buf, "%d ", XINT (prefixarg)); | |
8586 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 8587 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
8588 | else |
8589 | abort (); | |
8590 | } | |
284f4730 JB |
8591 | |
8592 | /* This isn't strictly correct if execute-extended-command | |
8593 | is bound to anything else. Perhaps it should use | |
8594 | this_command_keys? */ | |
8595 | strcat (buf, "M-x "); | |
8596 | ||
8597 | /* Prompt with buf, and then read a string, completing from and | |
8598 | restricting to the set of all defined commands. Don't provide | |
51763820 | 8599 | any initial input. Save the command read on the extended-command |
03b4122a | 8600 | history list. */ |
284f4730 JB |
8601 | function = Fcompleting_read (build_string (buf), |
8602 | Vobarray, Qcommandp, | |
4328577a KH |
8603 | Qt, Qnil, Qextended_command_history, Qnil, |
8604 | Qnil); | |
284f4730 | 8605 | |
1f5b1641 RS |
8606 | if (STRINGP (function) && XSTRING (function)->size == 0) |
8607 | error ("No command name given"); | |
8608 | ||
1113d9db JB |
8609 | /* Set this_command_keys to the concatenation of saved_keys and |
8610 | function, followed by a RET. */ | |
284f4730 | 8611 | { |
1113d9db | 8612 | struct Lisp_String *str; |
b0f2a7bf | 8613 | Lisp_Object *keys; |
284f4730 | 8614 | int i; |
284f4730 | 8615 | |
1113d9db | 8616 | this_command_key_count = 0; |
6321824f | 8617 | this_single_command_key_start = 0; |
1113d9db | 8618 | |
b0f2a7bf KH |
8619 | keys = XVECTOR (saved_keys)->contents; |
8620 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
8621 | add_command_key (keys[i]); | |
1113d9db JB |
8622 | |
8623 | str = XSTRING (function); | |
8624 | for (i = 0; i < str->size; i++) | |
301738ed | 8625 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 8626 | |
301738ed | 8627 | add_command_key (make_number ('\015')); |
284f4730 JB |
8628 | } |
8629 | ||
8630 | UNGCPRO; | |
8631 | ||
0a7f1fc0 | 8632 | function = Fintern (function, Qnil); |
d8bcf58e | 8633 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
8634 | Vthis_command = function; |
8635 | real_this_command = function; | |
284f4730 | 8636 | |
6526ab49 RS |
8637 | /* If enabled, show which key runs this command. */ |
8638 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 8639 | && NILP (Vexecuting_macro) |
6526ab49 | 8640 | && SYMBOLP (function)) |
5434fce6 RS |
8641 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8642 | Qt, Qnil); | |
8643 | else | |
8644 | bindings = Qnil; | |
6526ab49 | 8645 | |
5434fce6 RS |
8646 | value = Qnil; |
8647 | GCPRO2 (bindings, value); | |
8648 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 8649 | |
5434fce6 | 8650 | /* If the command has a key binding, print it now. */ |
3ababa60 | 8651 | if (!NILP (bindings) |
ee112567 KH |
8652 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
8653 | Qmouse_movement))) | |
5434fce6 RS |
8654 | { |
8655 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 8656 | int delay_time; |
985f9f66 | 8657 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
8658 | /* This command displayed something in the echo area; |
8659 | so wait a few seconds, then display our suggestion message. */ | |
8660 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
8661 | ? XINT (Vsuggest_key_bindings) : 2); | |
8662 | else | |
8663 | /* This command left the echo area empty, | |
8664 | so display our message immediately. */ | |
8665 | delay_time = 0; | |
8666 | ||
8667 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 8668 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 8669 | { |
5434fce6 RS |
8670 | Lisp_Object binding; |
8671 | char *newmessage; | |
985f9f66 | 8672 | int message_p = push_message (); |
5434fce6 RS |
8673 | |
8674 | binding = Fkey_description (bindings); | |
8675 | ||
8676 | newmessage | |
8677 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 8678 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 8679 | + 100); |
3ababa60 | 8680 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 8681 | XSYMBOL (function)->name->data, |
5434fce6 | 8682 | XSTRING (binding)->data); |
301738ed RS |
8683 | message2_nolog (newmessage, |
8684 | strlen (newmessage), | |
8685 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
8686 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
8687 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
8688 | Qnil, Qnil)) |
8689 | && message_p) | |
8690 | restore_message (); | |
8691 | ||
8692 | pop_message (); | |
6526ab49 RS |
8693 | } |
8694 | } | |
8695 | ||
5434fce6 | 8696 | RETURN_UNGCPRO (value); |
284f4730 | 8697 | } |
6526ab49 RS |
8698 | |
8699 | /* Find the set of keymaps now active. | |
8700 | Store into *MAPS_P a vector holding the various maps | |
8701 | and return the number of them. The vector was malloc'd | |
8702 | and the caller should free it. */ | |
8703 | ||
8704 | int | |
8705 | current_active_maps (maps_p) | |
8706 | Lisp_Object **maps_p; | |
8707 | { | |
8708 | Lisp_Object *tmaps, *maps; | |
8709 | int nmaps; | |
8710 | ||
8711 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
8712 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8713 | { | |
8714 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8715 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
8716 | nmaps = 0; | |
8717 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8718 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8719 | if (!NILP (Voverriding_local_map)) | |
8720 | maps[nmaps++] = Voverriding_local_map; | |
8721 | } | |
8722 | else | |
8723 | { | |
8724 | /* No, so use major and minor mode keymaps. */ | |
8725 | nmaps = current_minor_maps (NULL, &tmaps); | |
8726 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
8727 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
6526ab49 | 8728 | maps[nmaps++] = get_local_map (PT, current_buffer); |
6526ab49 RS |
8729 | } |
8730 | maps[nmaps++] = current_global_map; | |
8731 | ||
8732 | *maps_p = maps; | |
8733 | return nmaps; | |
8734 | } | |
284f4730 | 8735 | \f |
d9d4c147 | 8736 | /* Return nonzero if input events are pending. */ |
284f4730 | 8737 | |
dfcf069d | 8738 | int |
284f4730 JB |
8739 | detect_input_pending () |
8740 | { | |
8741 | if (!input_pending) | |
d9d4c147 KH |
8742 | get_input_pending (&input_pending, 0); |
8743 | ||
8744 | return input_pending; | |
8745 | } | |
8746 | ||
b1878f45 | 8747 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 8748 | |
dfcf069d | 8749 | int |
87dd9b9b RS |
8750 | detect_input_pending_run_timers (do_display) |
8751 | int do_display; | |
d9d4c147 | 8752 | { |
87dd9b9b RS |
8753 | int old_timers_run = timers_run; |
8754 | ||
d9d4c147 KH |
8755 | if (!input_pending) |
8756 | get_input_pending (&input_pending, 1); | |
284f4730 | 8757 | |
87dd9b9b | 8758 | if (old_timers_run != timers_run && do_display) |
7ee32cda GM |
8759 | { |
8760 | redisplay_preserve_echo_area (); | |
8761 | /* The following fixes a bug when using lazy-lock with | |
8762 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
8763 | from an idle timer function. The symptom of the bug is that | |
8764 | the cursor sometimes doesn't become visible until the next X | |
8765 | event is processed. --gerd. */ | |
8766 | if (rif) | |
8767 | rif->flush_display (NULL); | |
8768 | } | |
87dd9b9b | 8769 | |
284f4730 JB |
8770 | return input_pending; |
8771 | } | |
8772 | ||
ffd56f97 JB |
8773 | /* This is called in some cases before a possible quit. |
8774 | It cases the next call to detect_input_pending to recompute input_pending. | |
8775 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
8776 | |
8777 | void | |
ffd56f97 JB |
8778 | clear_input_pending () |
8779 | { | |
8780 | input_pending = 0; | |
8781 | } | |
8782 | ||
b1878f45 RS |
8783 | /* Return nonzero if there are pending requeued events. |
8784 | This isn't used yet. The hope is to make wait_reading_process_input | |
8785 | call it, and return return if it runs Lisp code that unreads something. | |
8786 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
8787 | to do in that case. It isn't trivial. */ | |
8788 | ||
dfcf069d | 8789 | int |
b1878f45 RS |
8790 | requeued_events_pending_p () |
8791 | { | |
8792 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
8793 | } | |
8794 | ||
8795 | ||
284f4730 JB |
8796 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
8797 | "T if command input is currently available with no waiting.\n\ | |
8798 | Actually, the value is nil only if we can be sure that no input is available.") | |
8799 | () | |
8800 | { | |
24597608 | 8801 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
8802 | return (Qt); |
8803 | ||
d9d4c147 KH |
8804 | get_input_pending (&input_pending, 1); |
8805 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
8806 | } |
8807 | ||
8808 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 8809 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
8810 | () |
8811 | { | |
5160df46 | 8812 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
8813 | Lisp_Object val; |
8814 | ||
8815 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 8816 | return Fvector (total_keys, keys); |
284f4730 JB |
8817 | else |
8818 | { | |
5160df46 JB |
8819 | val = Fvector (NUM_RECENT_KEYS, keys); |
8820 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
8821 | XVECTOR (val)->contents, |
8822 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 8823 | bcopy (keys, |
284f4730 JB |
8824 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
8825 | recent_keys_index * sizeof (Lisp_Object)); | |
8826 | return val; | |
8827 | } | |
8828 | } | |
8829 | ||
8830 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
8831 | "Return the key sequence that invoked this command.\n\ |
8832 | The value is a string or a vector.") | |
284f4730 JB |
8833 | () |
8834 | { | |
86e5706b RS |
8835 | return make_event_array (this_command_key_count, |
8836 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
8837 | } |
8838 | ||
e39da3d7 RS |
8839 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
8840 | "Return the key sequence that invoked this command, as a vector.") | |
8841 | () | |
8842 | { | |
8843 | return Fvector (this_command_key_count, | |
8844 | XVECTOR (this_command_keys)->contents); | |
8845 | } | |
8846 | ||
6321824f RS |
8847 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
8848 | Sthis_single_command_keys, 0, 0, 0, | |
8849 | "Return the key sequence that invoked this command.\n\ | |
8850 | Unlike `this-command-keys', this function's value\n\ | |
8851 | does not include prefix arguments.\n\ | |
e39da3d7 | 8852 | The value is always a vector.") |
6321824f RS |
8853 | () |
8854 | { | |
e39da3d7 RS |
8855 | return Fvector (this_command_key_count |
8856 | - this_single_command_key_start, | |
8857 | (XVECTOR (this_command_keys)->contents | |
8858 | + this_single_command_key_start)); | |
6321824f RS |
8859 | } |
8860 | ||
7d18f9ae RS |
8861 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
8862 | Sthis_single_command_raw_keys, 0, 0, 0, | |
8863 | "Return the raw events that were read for this command.\n\ | |
8864 | Unlike `this-single-command-keys', this function's value\n\ | |
8865 | shows the events before all translations (except for input methods).\n\ | |
8866 | The value is always a vector.") | |
8867 | () | |
8868 | { | |
8869 | return Fvector (raw_keybuf_count, | |
8870 | (XVECTOR (raw_keybuf)->contents)); | |
8871 | } | |
8872 | ||
71918b75 RS |
8873 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
8874 | Sreset_this_command_lengths, 0, 0, 0, | |
8875 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
8876 | \n\ | |
8877 | `universal-argument-other-key' rereads the event just typed.\n\ | |
8878 | It then gets translated through `function-key-map'.\n\ | |
8879 | The translated event gets included in the echo area and in\n\ | |
8880 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
8881 | That is not right.\n\ | |
8882 | \n\ | |
8883 | Calling this function directs the translated event to replace\n\ | |
8884 | the original event, so that only one version of the event actually\n\ | |
8885 | appears in the echo area and in the value of `this-command-keys.'.") | |
8886 | () | |
8887 | { | |
8888 | before_command_restore_flag = 1; | |
8889 | before_command_key_count_1 = before_command_key_count; | |
8890 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 8891 | return Qnil; |
71918b75 RS |
8892 | } |
8893 | ||
82e6e5af RS |
8894 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
8895 | Sclear_this_command_keys, 0, 0, 0, | |
8896 | "Clear out the vector that `this-command-keys' returns.") | |
8897 | () | |
8898 | { | |
8899 | this_command_key_count = 0; | |
8900 | return Qnil; | |
8901 | } | |
8902 | ||
284f4730 JB |
8903 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
8904 | "Return the current depth in recursive edits.") | |
8905 | () | |
8906 | { | |
8907 | Lisp_Object temp; | |
bb9e9bed | 8908 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
8909 | return temp; |
8910 | } | |
8911 | ||
8912 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
8913 | "FOpen dribble file: ", | |
9b2471df RS |
8914 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
8915 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
8916 | (file) |
8917 | Lisp_Object file; | |
8918 | { | |
6cb52def | 8919 | if (dribble) |
284f4730 | 8920 | { |
6cb52def KH |
8921 | fclose (dribble); |
8922 | dribble = 0; | |
284f4730 | 8923 | } |
6cb52def | 8924 | if (!NILP (file)) |
284f4730 JB |
8925 | { |
8926 | file = Fexpand_file_name (file, Qnil); | |
8927 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
8928 | if (dribble == 0) |
8929 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
8930 | } |
8931 | return Qnil; | |
8932 | } | |
8933 | ||
8934 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
8935 | "Discard the contents of the terminal input buffer.\n\ | |
8936 | Also cancel any kbd macro being defined.") | |
8937 | () | |
8938 | { | |
c5fdd383 | 8939 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
8940 | update_mode_lines++; |
8941 | ||
24597608 | 8942 | Vunread_command_events = Qnil; |
86e5706b | 8943 | unread_command_char = -1; |
284f4730 JB |
8944 | |
8945 | discard_tty_input (); | |
8946 | ||
7ee32cda | 8947 | kbd_fetch_ptr = kbd_store_ptr; |
beecf6a1 | 8948 | Ffillarray (kbd_buffer_frame_or_window, Qnil); |
284f4730 JB |
8949 | input_pending = 0; |
8950 | ||
8951 | return Qnil; | |
8952 | } | |
8953 | \f | |
8954 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
8955 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
8956 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
8957 | control, run a subshell instead.\n\n\ | |
284f4730 | 8958 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
8959 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
8960 | \n\ | |
bbdc2092 RS |
8961 | Before suspending, run the normal hook `suspend-hook'.\n\ |
8962 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
8963 | \n\ |
8964 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 8965 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
8966 | (stuffstring) |
8967 | Lisp_Object stuffstring; | |
8968 | { | |
284f4730 JB |
8969 | int count = specpdl_ptr - specpdl; |
8970 | int old_height, old_width; | |
8971 | int width, height; | |
03cee6ae | 8972 | struct gcpro gcpro1; |
284f4730 JB |
8973 | |
8974 | if (!NILP (stuffstring)) | |
8975 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 8976 | |
1e95ed28 JB |
8977 | /* Run the functions in suspend-hook. */ |
8978 | if (!NILP (Vrun_hooks)) | |
8979 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 8980 | |
b7d2ebbf | 8981 | GCPRO1 (stuffstring); |
ff11dfa1 | 8982 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
8983 | reset_sys_modes (); |
8984 | /* sys_suspend can get an error if it tries to fork a subshell | |
8985 | and the system resources aren't available for that. */ | |
91a0da02 | 8986 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 8987 | Qnil); |
284f4730 | 8988 | stuff_buffered_input (stuffstring); |
8026024c KH |
8989 | if (cannot_suspend) |
8990 | sys_subshell (); | |
8991 | else | |
8992 | sys_suspend (); | |
284f4730 JB |
8993 | unbind_to (count, Qnil); |
8994 | ||
8995 | /* Check if terminal/window size has changed. | |
8996 | Note that this is not useful when we are running directly | |
8997 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 8998 | get_frame_size (&width, &height); |
284f4730 | 8999 | if (width != old_width || height != old_height) |
788f89eb | 9000 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9001 | |
1e95ed28 | 9002 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9003 | if (!NILP (Vrun_hooks)) |
9004 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9005 | |
284f4730 JB |
9006 | UNGCPRO; |
9007 | return Qnil; | |
9008 | } | |
9009 | ||
9010 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9011 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9012 | |
07a59269 | 9013 | void |
284f4730 JB |
9014 | stuff_buffered_input (stuffstring) |
9015 | Lisp_Object stuffstring; | |
9016 | { | |
284f4730 | 9017 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9018 | #ifdef BSD_SYSTEM |
284f4730 | 9019 | #ifndef BSD4_1 |
612b78ef | 9020 | register unsigned char *p; |
612b78ef | 9021 | |
8c18cbfb | 9022 | if (STRINGP (stuffstring)) |
284f4730 JB |
9023 | { |
9024 | register int count; | |
9025 | ||
9026 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9027 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9028 | while (count-- > 0) |
9029 | stuff_char (*p++); | |
9030 | stuff_char ('\n'); | |
9031 | } | |
9032 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 9033 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9034 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9035 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9036 | { |
beecf6a1 KH |
9037 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9038 | kbd_fetch_ptr = kbd_buffer; | |
9039 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9040 | stuff_char (kbd_fetch_ptr->code); | |
9041 | kbd_fetch_ptr->kind = no_event; | |
9042 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
9043 | - kbd_buffer] | |
7b4aedb9 | 9044 | = Qnil); |
284f4730 JB |
9045 | } |
9046 | input_pending = 0; | |
9047 | #endif | |
6df54671 | 9048 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9049 | } |
9050 | \f | |
dfcf069d | 9051 | void |
ffd56f97 JB |
9052 | set_waiting_for_input (time_to_clear) |
9053 | EMACS_TIME *time_to_clear; | |
284f4730 | 9054 | { |
ffd56f97 | 9055 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9056 | |
9057 | /* Tell interrupt_signal to throw back to read_char, */ | |
9058 | waiting_for_input = 1; | |
9059 | ||
9060 | /* If interrupt_signal was called before and buffered a C-g, | |
9061 | make it run again now, to avoid timing error. */ | |
9062 | if (!NILP (Vquit_flag)) | |
9063 | quit_throw_to_read_char (); | |
284f4730 JB |
9064 | } |
9065 | ||
07a59269 | 9066 | void |
284f4730 JB |
9067 | clear_waiting_for_input () |
9068 | { | |
9069 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9070 | waiting_for_input = 0; | |
ffd56f97 | 9071 | input_available_clear_time = 0; |
284f4730 JB |
9072 | } |
9073 | ||
9074 | /* This routine is called at interrupt level in response to C-G. | |
9075 | If interrupt_input, this is the handler for SIGINT. | |
9076 | Otherwise, it is called from kbd_buffer_store_event, | |
9077 | in handling SIGIO or SIGTINT. | |
9078 | ||
9079 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
9080 | immediately throw back to read_char. | |
9081 | ||
9082 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
9083 | This causes eval to throw, when it gets a chance. | |
9084 | If quit-flag is already non-nil, it stops the job right away. */ | |
9085 | ||
9086 | SIGTYPE | |
91c049d4 RS |
9087 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9088 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9089 | { |
9090 | char c; | |
9091 | /* Must preserve main program's value of errno. */ | |
9092 | int old_errno = errno; | |
788f89eb | 9093 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9094 | |
5970a8cb | 9095 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9096 | if (!read_socket_hook && NILP (Vwindow_system)) |
9097 | { | |
9098 | /* USG systems forget handlers when they are used; | |
9099 | must reestablish each time */ | |
9100 | signal (SIGINT, interrupt_signal); | |
9101 | signal (SIGQUIT, interrupt_signal); | |
9102 | } | |
284f4730 JB |
9103 | #endif /* USG */ |
9104 | ||
9105 | cancel_echoing (); | |
9106 | ||
31e4e97b | 9107 | if (!NILP (Vquit_flag) |
788f89eb | 9108 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9109 | { |
31e4e97b EZ |
9110 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9111 | another SIGINT, it might be harmful due to non-reentrancy | |
9112 | in I/O functions. */ | |
9113 | sigblock (sigmask (SIGINT)); | |
9114 | ||
284f4730 JB |
9115 | fflush (stdout); |
9116 | reset_sys_modes (); | |
31e4e97b | 9117 | |
284f4730 JB |
9118 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9119 | /* | |
9120 | * On systems which can suspend the current process and return to the original | |
9121 | * shell, this command causes the user to end up back at the shell. | |
9122 | * The "Auto-save" and "Abort" questions are not asked until | |
9123 | * the user elects to return to emacs, at which point he can save the current | |
9124 | * job and either dump core or continue. | |
9125 | */ | |
9126 | sys_suspend (); | |
9127 | #else | |
9128 | #ifdef VMS | |
9129 | if (sys_suspend () == -1) | |
9130 | { | |
9131 | printf ("Not running as a subprocess;\n"); | |
9132 | printf ("you can continue or abort.\n"); | |
9133 | } | |
9134 | #else /* not VMS */ | |
9135 | /* Perhaps should really fork an inferior shell? | |
9136 | But that would not provide any way to get back | |
9137 | to the original shell, ever. */ | |
9138 | printf ("No support for stopping a process on this operating system;\n"); | |
9139 | printf ("you can continue or abort.\n"); | |
9140 | #endif /* not VMS */ | |
9141 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9142 | #ifdef MSDOS |
9143 | /* We must remain inside the screen area when the internal terminal | |
9144 | is used. Note that [Enter] is not echoed by dos. */ | |
9145 | cursor_to (0, 0); | |
9146 | #endif | |
118d6ca9 RS |
9147 | /* It doesn't work to autosave while GC is in progress; |
9148 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9149 | if (!gc_in_progress) | |
9fd7d808 | 9150 | { |
118d6ca9 RS |
9151 | printf ("Auto-save? (y or n) "); |
9152 | fflush (stdout); | |
9153 | if (((c = getchar ()) & ~040) == 'Y') | |
9154 | { | |
9155 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9156 | #ifdef MSDOS |
118d6ca9 | 9157 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9158 | #else /* not MSDOS */ |
118d6ca9 | 9159 | printf ("Auto-save done\n"); |
80e4aa30 | 9160 | #endif /* not MSDOS */ |
118d6ca9 RS |
9161 | } |
9162 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9163 | } |
118d6ca9 RS |
9164 | else |
9165 | { | |
9166 | /* During GC, it must be safe to reenable quitting again. */ | |
9167 | Vinhibit_quit = Qnil; | |
9168 | #ifdef MSDOS | |
9169 | printf ("\r\n"); | |
9170 | #endif /* not MSDOS */ | |
9171 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9172 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9173 | fflush (stdout); | |
9174 | } | |
9175 | ||
80e4aa30 RS |
9176 | #ifdef MSDOS |
9177 | printf ("\r\nAbort? (y or n) "); | |
9178 | #else /* not MSDOS */ | |
284f4730 JB |
9179 | #ifdef VMS |
9180 | printf ("Abort (and enter debugger)? (y or n) "); | |
9181 | #else /* not VMS */ | |
9182 | printf ("Abort (and dump core)? (y or n) "); | |
9183 | #endif /* not VMS */ | |
80e4aa30 | 9184 | #endif /* not MSDOS */ |
284f4730 JB |
9185 | fflush (stdout); |
9186 | if (((c = getchar ()) & ~040) == 'Y') | |
9187 | abort (); | |
9188 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9189 | #ifdef MSDOS |
9190 | printf ("\r\nContinuing...\r\n"); | |
9191 | #else /* not MSDOS */ | |
284f4730 | 9192 | printf ("Continuing...\n"); |
80e4aa30 | 9193 | #endif /* not MSDOS */ |
284f4730 JB |
9194 | fflush (stdout); |
9195 | init_sys_modes (); | |
31e4e97b | 9196 | sigfree (); |
284f4730 JB |
9197 | } |
9198 | else | |
9199 | { | |
9200 | /* If executing a function that wants to be interrupted out of | |
9201 | and the user has not deferred quitting by binding `inhibit-quit' | |
9202 | then quit right away. */ | |
9203 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9204 | { | |
e39da3d7 RS |
9205 | struct gl_state_s saved; |
9206 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9207 | ||
284f4730 JB |
9208 | immediate_quit = 0; |
9209 | sigfree (); | |
e39da3d7 RS |
9210 | saved = gl_state; |
9211 | GCPRO4 (saved.object, saved.global_code, | |
9212 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9213 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9214 | gl_state = saved; |
9215 | UNGCPRO; | |
284f4730 JB |
9216 | } |
9217 | else | |
9218 | /* Else request quit when it's safe */ | |
9219 | Vquit_flag = Qt; | |
9220 | } | |
9221 | ||
9222 | if (waiting_for_input && !echoing) | |
9223 | quit_throw_to_read_char (); | |
9224 | ||
9225 | errno = old_errno; | |
9226 | } | |
9227 | ||
9228 | /* Handle a C-g by making read_char return C-g. */ | |
9229 | ||
07a59269 | 9230 | void |
284f4730 JB |
9231 | quit_throw_to_read_char () |
9232 | { | |
284f4730 JB |
9233 | sigfree (); |
9234 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9235 | clear_waiting_for_input (); |
284f4730 JB |
9236 | input_pending = 0; |
9237 | ||
24597608 | 9238 | Vunread_command_events = Qnil; |
86e5706b | 9239 | unread_command_char = -1; |
284f4730 | 9240 | |
087feab3 RS |
9241 | #if 0 /* Currently, sit_for is called from read_char without turning |
9242 | off polling. And that can call set_waiting_for_input. | |
9243 | It seems to be harmless. */ | |
e6b01c14 JB |
9244 | #ifdef POLL_FOR_INPUT |
9245 | /* May be > 1 if in recursive minibuffer. */ | |
9246 | if (poll_suppress_count == 0) | |
9247 | abort (); | |
9248 | #endif | |
087feab3 | 9249 | #endif |
4c52b668 | 9250 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9251 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf RS |
9252 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
9253 | Qnil, 0); | |
e6b01c14 | 9254 | |
284f4730 JB |
9255 | _longjmp (getcjmp, 1); |
9256 | } | |
9257 | \f | |
9258 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9259 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9260 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9261 | nil means use CBREAK mode.\n\ | |
9262 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9263 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9264 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9265 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9266 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9267 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9268 | See also `current-input-mode'.") | |
284f4730 JB |
9269 | (interrupt, flow, meta, quit) |
9270 | Lisp_Object interrupt, flow, meta, quit; | |
9271 | { | |
9272 | if (!NILP (quit) | |
8c18cbfb | 9273 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9274 | error ("set-input-mode: QUIT must be an ASCII character"); |
9275 | ||
9276 | #ifdef POLL_FOR_INPUT | |
9277 | stop_polling (); | |
9278 | #endif | |
284f4730 | 9279 | |
07de30b9 | 9280 | #ifndef DOS_NT |
2ee250ec | 9281 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 9282 | reset_sys_modes (); |
2ee250ec RS |
9283 | #endif |
9284 | ||
284f4730 JB |
9285 | #ifdef SIGIO |
9286 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 9287 | if (read_socket_hook) |
9a0f60bb KH |
9288 | { |
9289 | /* When using X, don't give the user a real choice, | |
9290 | because we haven't implemented the mechanisms to support it. */ | |
9291 | #ifdef NO_SOCK_SIGIO | |
9292 | interrupt_input = 0; | |
9293 | #else /* not NO_SOCK_SIGIO */ | |
9294 | interrupt_input = 1; | |
284f4730 | 9295 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
9296 | } |
9297 | else | |
284f4730 JB |
9298 | interrupt_input = !NILP (interrupt); |
9299 | #else /* not SIGIO */ | |
9300 | interrupt_input = 0; | |
9301 | #endif /* not SIGIO */ | |
9a0f60bb | 9302 | |
284f4730 JB |
9303 | /* Our VMS input only works by interrupts, as of now. */ |
9304 | #ifdef VMS | |
9305 | interrupt_input = 1; | |
9306 | #endif | |
9a0f60bb | 9307 | |
284f4730 | 9308 | flow_control = !NILP (flow); |
b04904fb RS |
9309 | if (NILP (meta)) |
9310 | meta_key = 0; | |
9311 | else if (EQ (meta, Qt)) | |
9312 | meta_key = 1; | |
9313 | else | |
9314 | meta_key = 2; | |
284f4730 JB |
9315 | if (!NILP (quit)) |
9316 | /* Don't let this value be out of range. */ | |
9317 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
9318 | ||
07de30b9 | 9319 | #ifndef DOS_NT |
284f4730 | 9320 | init_sys_modes (); |
2ee250ec | 9321 | #endif |
34f04431 RS |
9322 | |
9323 | #ifdef POLL_FOR_INPUT | |
9324 | poll_suppress_count = 1; | |
9325 | start_polling (); | |
9326 | #endif | |
284f4730 JB |
9327 | return Qnil; |
9328 | } | |
80645119 JB |
9329 | |
9330 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
9331 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
9332 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
9333 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
9334 | nil, Emacs is using CBREAK mode.\n\ | |
9335 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
9336 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
9337 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
9338 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
9339 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
9340 | all 8 bits as the character code.\n\ | |
80645119 JB |
9341 | QUIT is the character Emacs currently uses to quit.\n\ |
9342 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 9343 | `set-input-mode'.") |
80645119 JB |
9344 | () |
9345 | { | |
9346 | Lisp_Object val[4]; | |
9347 | ||
9348 | val[0] = interrupt_input ? Qt : Qnil; | |
9349 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 9350 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 9351 | XSETFASTINT (val[3], quit_char); |
80645119 | 9352 | |
bf673a7a | 9353 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
9354 | } |
9355 | ||
284f4730 | 9356 | \f |
6c6083a9 | 9357 | /* |
c5fdd383 | 9358 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
9359 | */ |
9360 | void | |
c5fdd383 KH |
9361 | init_kboard (kb) |
9362 | KBOARD *kb; | |
6c6083a9 | 9363 | { |
217258d5 | 9364 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 9365 | kb->Vlast_command = Qnil; |
75045dcb | 9366 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 9367 | kb->Vprefix_arg = Qnil; |
75045dcb | 9368 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
9369 | kb->kbd_queue = Qnil; |
9370 | kb->kbd_queue_has_data = 0; | |
9371 | kb->immediate_echo = 0; | |
9372 | kb->echoptr = kb->echobuf; | |
9373 | kb->echo_after_prompt = -1; | |
9374 | kb->kbd_macro_buffer = 0; | |
9375 | kb->kbd_macro_bufsize = 0; | |
9376 | kb->defining_kbd_macro = Qnil; | |
9377 | kb->Vlast_kbd_macro = Qnil; | |
9378 | kb->reference_count = 0; | |
7c97ffdc | 9379 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 9380 | kb->system_key_syms = Qnil; |
9ba47203 | 9381 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
9382 | } |
9383 | ||
9384 | /* | |
c5fdd383 | 9385 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 9386 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
9387 | * it a second time. |
9388 | */ | |
e50b8090 | 9389 | static void |
c5fdd383 KH |
9390 | wipe_kboard (kb) |
9391 | KBOARD *kb; | |
6c6083a9 | 9392 | { |
c5fdd383 KH |
9393 | if (kb->kbd_macro_buffer) |
9394 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
9395 | } |
9396 | ||
e50b8090 KH |
9397 | #ifdef MULTI_KBOARD |
9398 | void | |
9399 | delete_kboard (kb) | |
9400 | KBOARD *kb; | |
9401 | { | |
9402 | KBOARD **kbp; | |
9403 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
9404 | if (*kbp == NULL) | |
9405 | abort (); | |
9406 | *kbp = kb->next_kboard; | |
9407 | wipe_kboard (kb); | |
9408 | xfree (kb); | |
9409 | } | |
9410 | #endif | |
9411 | ||
dfcf069d | 9412 | void |
284f4730 JB |
9413 | init_keyboard () |
9414 | { | |
284f4730 JB |
9415 | /* This is correct before outermost invocation of the editor loop */ |
9416 | command_loop_level = -1; | |
9417 | immediate_quit = 0; | |
9418 | quit_char = Ctl ('g'); | |
24597608 | 9419 | Vunread_command_events = Qnil; |
86e5706b | 9420 | unread_command_char = -1; |
87dd9b9b | 9421 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 9422 | total_keys = 0; |
9deb415a | 9423 | recent_keys_index = 0; |
beecf6a1 KH |
9424 | kbd_fetch_ptr = kbd_buffer; |
9425 | kbd_store_ptr = kbd_buffer; | |
9426 | kbd_buffer_frame_or_window | |
9427 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 9428 | #ifdef HAVE_MOUSE |
a9d77f1f | 9429 | do_mouse_tracking = Qnil; |
2eb6bfbe | 9430 | #endif |
284f4730 JB |
9431 | input_pending = 0; |
9432 | ||
4c52b668 KH |
9433 | /* This means that command_loop_1 won't try to select anything the first |
9434 | time through. */ | |
9435 | internal_last_event_frame = Qnil; | |
9436 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 9437 | |
c5fdd383 | 9438 | #ifdef MULTI_KBOARD |
aaca43a1 | 9439 | current_kboard = initial_kboard; |
6c6083a9 | 9440 | #endif |
aaca43a1 | 9441 | wipe_kboard (current_kboard); |
c5fdd383 | 9442 | init_kboard (current_kboard); |
07d2b8de | 9443 | |
beecf6a1 KH |
9444 | if (initialized) |
9445 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
9446 | ||
9447 | kbd_buffer_frame_or_window | |
9448 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 9449 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
9450 | { |
9451 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 9452 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
9453 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
9454 | SIGQUIT and we can't tell which one it will give us. */ | |
9455 | signal (SIGQUIT, interrupt_signal); | |
9456 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 9457 | } |
284f4730 JB |
9458 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
9459 | #ifdef SIGIO | |
7a80a6f6 RS |
9460 | if (!noninteractive) |
9461 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 9462 | #endif /* SIGIO */ |
284f4730 JB |
9463 | |
9464 | /* Use interrupt input by default, if it works and noninterrupt input | |
9465 | has deficiencies. */ | |
9466 | ||
9467 | #ifdef INTERRUPT_INPUT | |
9468 | interrupt_input = 1; | |
9469 | #else | |
9470 | interrupt_input = 0; | |
9471 | #endif | |
9472 | ||
9473 | /* Our VMS input only works by interrupts, as of now. */ | |
9474 | #ifdef VMS | |
9475 | interrupt_input = 1; | |
9476 | #endif | |
9477 | ||
9478 | sigfree (); | |
9479 | dribble = 0; | |
9480 | ||
9481 | if (keyboard_init_hook) | |
9482 | (*keyboard_init_hook) (); | |
9483 | ||
9484 | #ifdef POLL_FOR_INPUT | |
9485 | poll_suppress_count = 1; | |
9486 | start_polling (); | |
9487 | #endif | |
9488 | } | |
9489 | ||
df0f2ba1 | 9490 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
9491 | event header symbols and put properties on them. */ |
9492 | struct event_head { | |
9493 | Lisp_Object *var; | |
9494 | char *name; | |
9495 | Lisp_Object *kind; | |
9496 | }; | |
9497 | ||
9498 | struct event_head head_table[] = { | |
7b4aedb9 | 9499 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 9500 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 9501 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 9502 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
9503 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
9504 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
9505 | }; |
9506 | ||
dfcf069d | 9507 | void |
284f4730 JB |
9508 | syms_of_keyboard () |
9509 | { | |
9ea173e8 | 9510 | /* Tool-bars. */ |
7ee32cda GM |
9511 | QCimage = intern (":image"); |
9512 | staticpro (&QCimage); | |
9513 | ||
9514 | staticpro (&Qhelp_echo); | |
9515 | Qhelp_echo = intern ("help-echo"); | |
9516 | ||
e8886a1d RS |
9517 | staticpro (&item_properties); |
9518 | item_properties = Qnil; | |
9519 | ||
9ea173e8 GM |
9520 | staticpro (&tool_bar_item_properties); |
9521 | tool_bar_item_properties = Qnil; | |
9522 | staticpro (&tool_bar_items_vector); | |
9523 | tool_bar_items_vector = Qnil; | |
7ee32cda | 9524 | |
d5eecefb RS |
9525 | staticpro (&real_this_command); |
9526 | real_this_command = Qnil; | |
9527 | ||
d925fb39 RS |
9528 | Qtimer_event_handler = intern ("timer-event-handler"); |
9529 | staticpro (&Qtimer_event_handler); | |
9530 | ||
2e894dab RS |
9531 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
9532 | staticpro (&Qdisabled_command_hook); | |
9533 | ||
284f4730 JB |
9534 | Qself_insert_command = intern ("self-insert-command"); |
9535 | staticpro (&Qself_insert_command); | |
9536 | ||
9537 | Qforward_char = intern ("forward-char"); | |
9538 | staticpro (&Qforward_char); | |
9539 | ||
9540 | Qbackward_char = intern ("backward-char"); | |
9541 | staticpro (&Qbackward_char); | |
9542 | ||
9543 | Qdisabled = intern ("disabled"); | |
9544 | staticpro (&Qdisabled); | |
9545 | ||
e58aa385 RS |
9546 | Qundefined = intern ("undefined"); |
9547 | staticpro (&Qundefined); | |
9548 | ||
86e5706b RS |
9549 | Qpre_command_hook = intern ("pre-command-hook"); |
9550 | staticpro (&Qpre_command_hook); | |
9551 | ||
9552 | Qpost_command_hook = intern ("post-command-hook"); | |
9553 | staticpro (&Qpost_command_hook); | |
9554 | ||
59aadc81 RS |
9555 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
9556 | staticpro (&Qpost_command_idle_hook); | |
9557 | ||
3ef14e46 RS |
9558 | Qdeferred_action_function = intern ("deferred-action-function"); |
9559 | staticpro (&Qdeferred_action_function); | |
9560 | ||
40932d1a RS |
9561 | Qcommand_hook_internal = intern ("command-hook-internal"); |
9562 | staticpro (&Qcommand_hook_internal); | |
9563 | ||
284f4730 JB |
9564 | Qfunction_key = intern ("function-key"); |
9565 | staticpro (&Qfunction_key); | |
13b5e56c | 9566 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 9567 | staticpro (&Qmouse_click); |
07de30b9 GV |
9568 | #ifdef WINDOWSNT |
9569 | Qmouse_wheel = intern ("mouse-wheel"); | |
9570 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
9571 | Qlanguage_change = intern ("language-change"); |
9572 | staticpro (&Qlanguage_change); | |
07de30b9 | 9573 | #endif |
a24dc617 RS |
9574 | Qdrag_n_drop = intern ("drag-n-drop"); |
9575 | staticpro (&Qdrag_n_drop); | |
284f4730 | 9576 | |
5bf68f6e AS |
9577 | Qusr1_signal = intern ("usr1-signal"); |
9578 | staticpro (&Qusr1_signal); | |
9579 | Qusr2_signal = intern ("usr2-signal"); | |
9580 | staticpro (&Qusr2_signal); | |
9581 | ||
598a9fa7 JB |
9582 | Qmenu_enable = intern ("menu-enable"); |
9583 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
9584 | Qmenu_alias = intern ("menu-alias"); |
9585 | staticpro (&Qmenu_alias); | |
9586 | QCenable = intern (":enable"); | |
9587 | staticpro (&QCenable); | |
9588 | QCvisible = intern (":visible"); | |
9589 | staticpro (&QCvisible); | |
7ee32cda GM |
9590 | QChelp = intern (":help"); |
9591 | staticpro (&QChelp); | |
e8886a1d RS |
9592 | QCfilter = intern (":filter"); |
9593 | staticpro (&QCfilter); | |
9594 | QCbutton = intern (":button"); | |
9595 | staticpro (&QCbutton); | |
74c1de23 RS |
9596 | QCkeys = intern (":keys"); |
9597 | staticpro (&QCkeys); | |
9598 | QCkey_sequence = intern (":key-sequence"); | |
9599 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
9600 | QCtoggle = intern (":toggle"); |
9601 | staticpro (&QCtoggle); | |
9602 | QCradio = intern (":radio"); | |
9603 | staticpro (&QCradio); | |
598a9fa7 | 9604 | |
284f4730 JB |
9605 | Qmode_line = intern ("mode-line"); |
9606 | staticpro (&Qmode_line); | |
e5d77022 JB |
9607 | Qvertical_line = intern ("vertical-line"); |
9608 | staticpro (&Qvertical_line); | |
3c370943 JB |
9609 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
9610 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
9611 | Qmenu_bar = intern ("menu-bar"); |
9612 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
9613 | |
9614 | Qabove_handle = intern ("above-handle"); | |
9615 | staticpro (&Qabove_handle); | |
9616 | Qhandle = intern ("handle"); | |
9617 | staticpro (&Qhandle); | |
9618 | Qbelow_handle = intern ("below-handle"); | |
9619 | staticpro (&Qbelow_handle); | |
db08707d RS |
9620 | Qup = intern ("up"); |
9621 | staticpro (&Qup); | |
9622 | Qdown = intern ("down"); | |
9623 | staticpro (&Qdown); | |
7ee32cda GM |
9624 | Qtop = intern ("top"); |
9625 | staticpro (&Qtop); | |
9626 | Qbottom = intern ("bottom"); | |
9627 | staticpro (&Qbottom); | |
9628 | Qend_scroll = intern ("end-scroll"); | |
9629 | staticpro (&Qend_scroll); | |
284f4730 | 9630 | |
cd21b839 | 9631 | Qevent_kind = intern ("event-kind"); |
284f4730 | 9632 | staticpro (&Qevent_kind); |
88cb0656 JB |
9633 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
9634 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
9635 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
9636 | staticpro (&Qevent_symbol_element_mask); | |
9637 | Qmodifier_cache = intern ("modifier-cache"); | |
9638 | staticpro (&Qmodifier_cache); | |
284f4730 | 9639 | |
48e416d4 RS |
9640 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
9641 | staticpro (&Qrecompute_lucid_menubar); | |
9642 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
9643 | staticpro (&Qactivate_menubar_hook); | |
9644 | ||
f4eef8b4 RS |
9645 | Qpolling_period = intern ("polling-period"); |
9646 | staticpro (&Qpolling_period); | |
9647 | ||
7d18f9ae RS |
9648 | Qinput_method_function = intern ("input-method-function"); |
9649 | staticpro (&Qinput_method_function); | |
9650 | ||
d5eecefb RS |
9651 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
9652 | staticpro (&Qinput_method_exit_on_first_char); | |
9653 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
9654 | staticpro (&Qinput_method_use_echo_area); | |
9655 | ||
9656 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
9657 | Fset (Qinput_method_use_echo_area, Qnil); | |
9658 | ||
284f4730 JB |
9659 | { |
9660 | struct event_head *p; | |
9661 | ||
9662 | for (p = head_table; | |
9663 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
9664 | p++) | |
9665 | { | |
9666 | *p->var = intern (p->name); | |
9667 | staticpro (p->var); | |
9668 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 9669 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
9670 | } |
9671 | } | |
9672 | ||
7b4aedb9 JB |
9673 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
9674 | staticpro (&button_down_location); | |
88cb0656 JB |
9675 | |
9676 | { | |
9677 | int i; | |
9678 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
9679 | ||
9680 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
9681 | for (i = 0; i < len; i++) | |
86e5706b RS |
9682 | if (modifier_names[i]) |
9683 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
9684 | staticpro (&modifier_symbols); |
9685 | } | |
9686 | ||
9deb415a JB |
9687 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
9688 | staticpro (&recent_keys); | |
9689 | ||
6569cc8d | 9690 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 9691 | staticpro (&this_command_keys); |
6569cc8d | 9692 | |
7d18f9ae RS |
9693 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
9694 | staticpro (&raw_keybuf); | |
9695 | ||
03b4122a BF |
9696 | Qextended_command_history = intern ("extended-command-history"); |
9697 | Fset (Qextended_command_history, Qnil); | |
9698 | staticpro (&Qextended_command_history); | |
9699 | ||
beecf6a1 KH |
9700 | kbd_buffer_frame_or_window |
9701 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
9702 | staticpro (&kbd_buffer_frame_or_window); | |
9703 | ||
24597608 RS |
9704 | accent_key_syms = Qnil; |
9705 | staticpro (&accent_key_syms); | |
9706 | ||
284f4730 JB |
9707 | func_key_syms = Qnil; |
9708 | staticpro (&func_key_syms); | |
9709 | ||
9710 | mouse_syms = Qnil; | |
9711 | staticpro (&mouse_syms); | |
9712 | ||
07de30b9 GV |
9713 | #ifdef WINDOWSNT |
9714 | mouse_wheel_syms = Qnil; | |
9715 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
9716 | |
9717 | drag_n_drop_syms = Qnil; | |
9718 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
9719 | #endif |
9720 | ||
cd21b839 JB |
9721 | unread_switch_frame = Qnil; |
9722 | staticpro (&unread_switch_frame); | |
9723 | ||
fe412364 EN |
9724 | internal_last_event_frame = Qnil; |
9725 | staticpro (&internal_last_event_frame); | |
9726 | ||
9727 | read_key_sequence_cmd = Qnil; | |
9728 | staticpro (&read_key_sequence_cmd); | |
9729 | ||
759860a6 RS |
9730 | menu_bar_one_keymap_changed_items = Qnil; |
9731 | staticpro (&menu_bar_one_keymap_changed_items); | |
9732 | ||
a1706c30 | 9733 | defsubr (&Sevent_convert_list); |
284f4730 | 9734 | defsubr (&Sread_key_sequence); |
e39da3d7 | 9735 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 9736 | defsubr (&Srecursive_edit); |
2eb6bfbe | 9737 | #ifdef HAVE_MOUSE |
284f4730 | 9738 | defsubr (&Strack_mouse); |
2eb6bfbe | 9739 | #endif |
284f4730 JB |
9740 | defsubr (&Sinput_pending_p); |
9741 | defsubr (&Scommand_execute); | |
9742 | defsubr (&Srecent_keys); | |
9743 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 9744 | defsubr (&Sthis_command_keys_vector); |
6321824f | 9745 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 9746 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 9747 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 9748 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
9749 | defsubr (&Ssuspend_emacs); |
9750 | defsubr (&Sabort_recursive_edit); | |
9751 | defsubr (&Sexit_recursive_edit); | |
9752 | defsubr (&Srecursion_depth); | |
9753 | defsubr (&Stop_level); | |
9754 | defsubr (&Sdiscard_input); | |
9755 | defsubr (&Sopen_dribble_file); | |
9756 | defsubr (&Sset_input_mode); | |
80645119 | 9757 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
9758 | defsubr (&Sexecute_extended_command); |
9759 | ||
284f4730 | 9760 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
9761 | "Last input event that was part of a command."); |
9762 | ||
186cf719 | 9763 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 9764 | "Last input event that was part of a command."); |
284f4730 | 9765 | |
7d6de002 | 9766 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 9767 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
9768 | Mouse menus give back keys that don't look like mouse events;\n\ |
9769 | this variable holds the actual mouse event that led to the menu,\n\ | |
9770 | so that you can determine whether the command was run by mouse or not."); | |
9771 | ||
284f4730 | 9772 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
9773 | "Last input event."); |
9774 | ||
186cf719 | 9775 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 9776 | "Last input event."); |
284f4730 | 9777 | |
24597608 | 9778 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
9779 | "List of events to be read as the command input.\n\ |
9780 | These events are processed first, before actual keyboard input."); | |
9781 | Vunread_command_events = Qnil; | |
284f4730 | 9782 | |
86e5706b RS |
9783 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
9784 | "If not -1, an object to be read as next command input event."); | |
9785 | ||
7d18f9ae RS |
9786 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
9787 | "List of events to be processed as input by input methods.\n\ | |
9788 | These events are processed after `unread-command-events', but\n\ | |
9789 | before actual keyboard input."); | |
9790 | Vunread_post_input_method_events = Qnil; | |
9791 | ||
9792 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
9793 | "List of events to be processed as input by input methods.\n\ | |
9794 | These events are processed after `unread-command-events', but\n\ | |
9795 | before actual keyboard input."); | |
9796 | Vunread_input_method_events = Qnil; | |
9797 | ||
284f4730 | 9798 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
9799 | "Meta-prefix character code.\n\ |
9800 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 9801 | XSETINT (meta_prefix_char, 033); |
284f4730 | 9802 | |
6c7178b9 | 9803 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
9804 | "The last command executed.\n\ |
9805 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
9806 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
9807 | command.\n\ | |
18f29056 RS |
9808 | \n\ |
9809 | The value `mode-exit' is special; it means that the previous command\n\ | |
9810 | read an event that told it to exit, and it did so and unread that event.\n\ | |
9811 | In other words, the present command is the event that made the previous\n\ | |
9812 | command exit.\n\ | |
9813 | \n\ | |
9814 | The value `kill-region' is special; it means that the previous command\n\ | |
9815 | was a kill command."); | |
284f4730 | 9816 | |
75045dcb RS |
9817 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
9818 | "Same as `last-command', but never altered by Lisp code."); | |
9819 | ||
d5eecefb | 9820 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
9821 | "The command now being executed.\n\ |
9822 | The command can set this variable; whatever is put here\n\ | |
9823 | will be in `last-command' during the following command."); | |
d5eecefb | 9824 | Vthis_command = Qnil; |
284f4730 JB |
9825 | |
9826 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
dace7f4e | 9827 | "*Number of input events between auto-saves.\n\ |
284f4730 JB |
9828 | Zero means disable autosaving due to number of characters typed."); |
9829 | auto_save_interval = 300; | |
9830 | ||
9831 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
9832 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
9833 | Zero or nil means disable auto-saving due to idleness.\n\ |
9834 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 9835 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 9836 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
9837 | |
9838 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
9839 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
9840 | echo_keystrokes = 1; | |
9841 | ||
9842 | DEFVAR_INT ("polling-period", &polling_period, | |
9843 | "*Interval between polling for input during Lisp execution.\n\ | |
9844 | The reason for polling is to make C-g work to stop a running program.\n\ | |
9845 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
9846 | Polling is automatically disabled in all other cases."); | |
9847 | polling_period = 2; | |
df0f2ba1 | 9848 | |
564dc952 | 9849 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 9850 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
9851 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
9852 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 9853 | by position only."); |
aab06933 | 9854 | Vdouble_click_time = make_number (500); |
fbcd35bd | 9855 | |
03361bcc RS |
9856 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
9857 | "*Non-nil means inhibit local map menu bar menus."); | |
9858 | inhibit_local_menu_bar_menus = 0; | |
9859 | ||
284f4730 | 9860 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 9861 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
9862 | This includes key sequences read from keyboard macros.\n\ |
9863 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
9864 | num_input_keys = 0; |
9865 | ||
c43b1734 RS |
9866 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
9867 | "Number of input events read from the keyboard so far.\n\ | |
9868 | This does not include events generated by keyboard macros."); | |
9869 | num_nonmacro_input_events = 0; | |
fa90970d | 9870 | |
4c52b668 KH |
9871 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
9872 | "The frame in which the most recently read event occurred.\n\ | |
9873 | If the last event came from a keyboard macro, this is set to `macro'."); | |
9874 | Vlast_event_frame = Qnil; | |
9875 | ||
fa90970d RS |
9876 | /* This variable is set up in sysdep.c. */ |
9877 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
9878 | "The ERASE character as set by the user with stty."); | |
9879 | ||
7e85b935 | 9880 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
9881 | "Character to recognize as meaning Help.\n\ |
9882 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
9883 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 9884 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 9885 | |
ecb7cb34 KH |
9886 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
9887 | "List of input events to recognize as meaning Help.\n\ | |
9888 | These work just like the value of `help-char' (see that)."); | |
9889 | Vhelp_event_list = Qnil; | |
9890 | ||
284f4730 | 9891 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 9892 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
9893 | If the form returns a string, that string is displayed.\n\ |
9894 | If `help-form' is nil, the help char is not recognized."); | |
9895 | Vhelp_form = Qnil; | |
9896 | ||
7e85b935 RS |
9897 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
9898 | "Command to run when `help-char' character follows a prefix key.\n\ | |
9899 | This command is used only when there is no actual binding\n\ | |
9900 | for that character after that prefix key."); | |
9901 | Vprefix_help_command = Qnil; | |
9902 | ||
284f4730 JB |
9903 | DEFVAR_LISP ("top-level", &Vtop_level, |
9904 | "Form to evaluate when Emacs starts up.\n\ | |
9905 | Useful to set before you dump a modified Emacs."); | |
9906 | Vtop_level = Qnil; | |
9907 | ||
9908 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 9909 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 9910 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
9911 | The value may be a string, a vector, or a char-table.\n\ |
9912 | If it is a string or vector of length N,\n\ | |
9913 | character codes N and up are untranslated.\n\ | |
9914 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
9915 | Vkeyboard_translate_table = Qnil; |
9916 | ||
8026024c | 9917 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
9918 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
9919 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
9920 | cannot_suspend = 0; |
9921 | ||
284f4730 | 9922 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 9923 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 9924 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
9925 | for elements that have prompt strings.\n\ |
9926 | The menu is displayed on the screen\n\ | |
9927 | if X menus were enabled at configuration\n\ | |
9928 | time and the previous event was a mouse click prefix key.\n\ | |
9929 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
9930 | menu_prompting = 1; |
9931 | ||
9932 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
9933 | "Character to see next line of menu prompt.\n\ | |
9934 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 9935 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
9936 | |
9937 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
9938 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
9939 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
9940 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 9941 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
9942 | all input characters will have the control modifier applied to them.\n\ |
9943 | \n\ | |
9d9f56dd | 9944 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 9945 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 9946 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 9947 | cancels any modification."); |
9fa4395d | 9948 | extra_keyboard_modifiers = 0; |
86e5706b RS |
9949 | |
9950 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
9951 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
9952 | The command loop sets this to nil before each command,\n\ | |
9953 | and tests the value when the command returns.\n\ | |
9954 | Buffer modification stores t in this variable."); | |
9955 | Vdeactivate_mark = Qnil; | |
9956 | ||
b0f2a7bf KH |
9957 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
9958 | "Temporary storage of pre-command-hook or post-command-hook."); | |
9959 | Vcommand_hook_internal = Qnil; | |
9960 | ||
86e5706b | 9961 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 9962 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
9963 | If an unhandled error happens in running this hook,\n\ |
9964 | the hook value is set to nil, since otherwise the error\n\ | |
9965 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
9966 | Vpre_command_hook = Qnil; |
9967 | ||
9968 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 9969 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
9970 | If an unhandled error happens in running this hook,\n\ |
9971 | the hook value is set to nil, since otherwise the error\n\ | |
9972 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 9973 | Vpost_command_hook = Qnil; |
48e416d4 | 9974 | |
59aadc81 RS |
9975 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
9976 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
9977 | Errors running the hook are caught and ignored.\n\ |
9978 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
9979 | Vpost_command_idle_hook = Qnil; |
9980 | ||
9981 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 9982 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
9983 | This is measured in microseconds."); |
9984 | post_command_idle_delay = 100000; | |
9985 | ||
cdb9d665 RS |
9986 | #if 0 |
9987 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
9988 | "Normal hook run when clearing the echo area."); | |
9989 | #endif | |
9990 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
9991 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
9992 | ||
48e416d4 RS |
9993 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
9994 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
9995 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 9996 | |
9f9c0e27 RS |
9997 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
9998 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 9999 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10000 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10001 | |
217258d5 KH |
10002 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10003 | Voverriding_terminal_local_map, | |
779b34df | 10004 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10005 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
10006 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
10007 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
10008 | set up a different keymap for reading the next command."); | |
217258d5 | 10009 | |
9dd3131c RS |
10010 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10011 | "Keymap that overrides all other local keymaps.\n\ | |
10012 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10013 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10014 | Voverriding_local_map = Qnil; | |
10015 | ||
d0a49716 RS |
10016 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10017 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10018 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10019 | and the minor mode maps regardless of `overriding-local-map'."); | |
10020 | Voverriding_local_map_menu_flag = Qnil; | |
10021 | ||
7f07d5ca RS |
10022 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10023 | "Keymap defining bindings for special events to execute at low level."); | |
10024 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10025 | ||
71edead1 | 10026 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10027 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10028 | |
7c97ffdc | 10029 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10030 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10031 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10032 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10033 | and SYMBOL is its name."); |
8a792f3a RS |
10034 | |
10035 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10036 | "List of deferred actions to be performed at a later time.\n\ | |
10037 | The precise format isn't relevant here; we just check whether it is nil."); | |
10038 | Vdeferred_action_list = Qnil; | |
10039 | ||
10040 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10041 | "Function to call to handle deferred actions, after each command.\n\ | |
10042 | This function is called with no arguments after each command\n\ | |
10043 | whenever `deferred-action-list' is non-nil."); | |
10044 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10045 | |
10046 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10047 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10048 | The value can be a length of time to show the message for.\n\ |
10049 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10050 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10051 | |
c04cbc3b | 10052 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10053 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10054 | Vtimer_list = Qnil; |
d9d4c147 KH |
10055 | |
10056 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10057 | "List of active idle-time timers in order of increasing time"); | |
10058 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10059 | |
10060 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10061 | "If non-nil, the function that implements the current input method.\n\ | |
10062 | It's called with one argument, a printing character that was just read.\n\ | |
10063 | \(That means a character with code 040...0176.)\n\ | |
10064 | Typically this function uses `read-event' to read additional events.\n\ | |
10065 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10066 | so it will not be called recursively.\n\ | |
10067 | \n\ | |
10068 | The function should return a list of zero or more events\n\ | |
10069 | to be used as input. If it wants to put back some events\n\ | |
10070 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10071 | it can add them to the beginning of `unread-command-events'.\n\ |
10072 | \n\ | |
10073 | The input method function can find in `input-method-previous-method'\n\ | |
10074 | the previous echo area message.\n\ | |
10075 | \n\ | |
10076 | The input method function should refer to the variables\n\ | |
10077 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10078 | for guidance on what to do."); | |
7d18f9ae | 10079 | Vinput_method_function = Qnil; |
d5eecefb RS |
10080 | |
10081 | DEFVAR_LISP ("input-method-previous-message", | |
10082 | &Vinput_method_previous_message, | |
a8b13665 | 10083 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10084 | This variable exists because `read-event' clears the echo area\n\ |
10085 | before running the input method. It is nil if there was no message."); | |
10086 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10087 | |
10088 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10089 | "If non-nil, the function that implements the display of help.\n\ | |
10090 | It's called with one argument, the help string to display."); | |
10091 | Vshow_help_function = Qnil; | |
284f4730 JB |
10092 | } |
10093 | ||
dfcf069d | 10094 | void |
284f4730 JB |
10095 | keys_of_keyboard () |
10096 | { | |
10097 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10098 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10099 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10100 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10101 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10102 | |
10103 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10104 | "handle-delete-frame"); | |
10105 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10106 | "ignore-event"); | |
10107 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10108 | "ignore-event"); | |
284f4730 | 10109 | } |