Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
d925fb39 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97 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 JB |
20 | |
21 | /* Allow config.h to undefine symbols found here. */ | |
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
284f4730 | 25 | #include <stdio.h> |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
28 | #include "lisp.h" | |
29 | #include "termhooks.h" | |
30 | #include "macros.h" | |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
284f4730 | 38 | #include "keyboard.h" |
497ba7a1 | 39 | #include "intervals.h" |
9ac0d9e0 | 40 | #include "blockinput.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 | |
c5e3b6c5 RS |
56 | /* This is to get the definitions of the XK_ symbols. */ |
57 | #ifdef HAVE_X_WINDOWS | |
58 | #include "xterm.h" | |
59 | #endif | |
60 | ||
e98a93eb GV |
61 | #ifdef HAVE_NTGUI |
62 | #include "w32term.h" | |
63 | #endif /* HAVE_NTGUI */ | |
64 | ||
0c2611c5 RS |
65 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
66 | #include "systime.h" | |
67 | ||
52baf19e JB |
68 | extern int errno; |
69 | ||
9ac0d9e0 JB |
70 | /* Variables for blockinput.h: */ |
71 | ||
72 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 73 | int interrupt_input_blocked; |
9ac0d9e0 JB |
74 | |
75 | /* Nonzero means an input interrupt has arrived | |
76 | during the current critical section. */ | |
63927c41 | 77 | int interrupt_input_pending; |
9ac0d9e0 JB |
78 | |
79 | ||
437f6112 RS |
80 | /* File descriptor to use for input. */ |
81 | extern int input_fd; | |
284f4730 | 82 | |
e98a93eb | 83 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
84 | /* Make all keyboard buffers much bigger when using X windows. */ |
85 | #define KBD_BUFFER_SIZE 4096 | |
86 | #else /* No X-windows, character input */ | |
87 | #define KBD_BUFFER_SIZE 256 | |
88 | #endif /* No X-windows */ | |
89 | ||
90 | /* Following definition copied from eval.c */ | |
91 | ||
92 | struct backtrace | |
93 | { | |
94 | struct backtrace *next; | |
95 | Lisp_Object *function; | |
96 | Lisp_Object *args; /* Points to vector of args. */ | |
97 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
98 | args points to slot holding list of | |
99 | unevalled args */ | |
100 | char evalargs; | |
101 | }; | |
102 | ||
c5fdd383 KH |
103 | #ifdef MULTI_KBOARD |
104 | KBOARD *initial_kboard; | |
105 | KBOARD *current_kboard; | |
106 | KBOARD *all_kboards; | |
1e8bd3da | 107 | int single_kboard; |
6c6083a9 | 108 | #else |
c5fdd383 | 109 | KBOARD the_only_kboard; |
6c6083a9 | 110 | #endif |
612b78ef | 111 | |
284f4730 JB |
112 | /* Non-nil disable property on a command means |
113 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 114 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
115 | |
116 | #define NUM_RECENT_KEYS (100) | |
117 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
118 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 119 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 120 | |
6569cc8d JB |
121 | /* Vector holding the key sequence that invoked the current command. |
122 | It is reused for each command, and it may be longer than the current | |
123 | sequence; this_command_key_count indicates how many elements | |
124 | actually mean something. | |
125 | It's easier to staticpro a single Lisp_Object than an array. */ | |
126 | Lisp_Object this_command_keys; | |
127 | int this_command_key_count; | |
284f4730 | 128 | |
6321824f RS |
129 | /* Number of elements of this_command_keys |
130 | that precede this key sequence. */ | |
131 | int this_single_command_key_start; | |
132 | ||
71918b75 RS |
133 | /* Record values of this_command_key_count and echo_length () |
134 | before this command was read. */ | |
135 | static int before_command_key_count; | |
136 | static int before_command_echo_length; | |
137 | /* Values of before_command_key_count and before_command_echo_length | |
138 | saved by reset-this-command-lengths. */ | |
139 | static int before_command_key_count_1; | |
140 | static int before_command_echo_length_1; | |
141 | /* Flag set by reset-this-command-lengths, | |
142 | saying to reset the lengths when add_command_key is called. */ | |
143 | static int before_command_restore_flag; | |
144 | ||
284f4730 JB |
145 | extern int minbuf_level; |
146 | ||
147 | extern struct backtrace *backtrace_list; | |
148 | ||
149 | /* Nonzero means do menu prompting. */ | |
150 | static int menu_prompting; | |
151 | ||
152 | /* Character to see next line of menu prompt. */ | |
153 | static Lisp_Object menu_prompt_more_char; | |
154 | ||
155 | /* For longjmp to where kbd input is being done. */ | |
156 | static jmp_buf getcjmp; | |
157 | ||
158 | /* True while doing kbd input. */ | |
159 | int waiting_for_input; | |
160 | ||
161 | /* True while displaying for echoing. Delays C-g throwing. */ | |
162 | static int echoing; | |
163 | ||
1fc93d49 RS |
164 | /* True means we can start echoing at the next input pause |
165 | even though there is something in the echo area. */ | |
0c04a67e | 166 | static char *ok_to_echo_at_next_pause; |
1fc93d49 | 167 | |
03361bcc RS |
168 | /* Nonzero means disregard local maps for the menu bar. */ |
169 | static int inhibit_local_menu_bar_menus; | |
170 | ||
80e4aa30 | 171 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
172 | int immediate_quit; |
173 | ||
fa90970d RS |
174 | /* The user's ERASE setting. */ |
175 | Lisp_Object Vtty_erase_char; | |
176 | ||
284f4730 | 177 | /* Character to recognize as the help char. */ |
7e85b935 | 178 | Lisp_Object Vhelp_char; |
284f4730 | 179 | |
ecb7cb34 KH |
180 | /* List of other event types to recognize as meaning "help". */ |
181 | Lisp_Object Vhelp_event_list; | |
182 | ||
284f4730 JB |
183 | /* Form to execute when help char is typed. */ |
184 | Lisp_Object Vhelp_form; | |
185 | ||
7e85b935 RS |
186 | /* Command to run when the help character follows a prefix key. */ |
187 | Lisp_Object Vprefix_help_command; | |
188 | ||
9f9c0e27 RS |
189 | /* List of items that should move to the end of the menu bar. */ |
190 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 191 | |
6526ab49 RS |
192 | /* Non-nil means show the equivalent key-binding for |
193 | any M-x command that has one. | |
194 | The value can be a length of time to show the message for. | |
195 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
196 | Lisp_Object Vsuggest_key_bindings; | |
197 | ||
284f4730 JB |
198 | /* Character that causes a quit. Normally C-g. |
199 | ||
200 | If we are running on an ordinary terminal, this must be an ordinary | |
201 | ASCII char, since we want to make it our interrupt character. | |
202 | ||
203 | If we are not running on an ordinary terminal, it still needs to be | |
204 | an ordinary ASCII char. This character needs to be recognized in | |
205 | the input interrupt handler. At this point, the keystroke is | |
206 | represented as a struct input_event, while the desired quit | |
207 | character is specified as a lispy event. The mapping from struct | |
208 | input_events to lispy events cannot run in an interrupt handler, | |
209 | and the reverse mapping is difficult for anything but ASCII | |
210 | keystrokes. | |
211 | ||
212 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
213 | ASCII character. */ | |
214 | int quit_char; | |
215 | ||
216 | extern Lisp_Object current_global_map; | |
217 | extern int minibuf_level; | |
218 | ||
9dd3131c RS |
219 | /* If non-nil, this is a map that overrides all other local maps. */ |
220 | Lisp_Object Voverriding_local_map; | |
221 | ||
d0a49716 RS |
222 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
223 | Lisp_Object Voverriding_local_map_menu_flag; | |
224 | ||
7f07d5ca RS |
225 | /* Keymap that defines special misc events that should |
226 | be processed immediately at a low level. */ | |
227 | Lisp_Object Vspecial_event_map; | |
228 | ||
284f4730 JB |
229 | /* Current depth in recursive edits. */ |
230 | int command_loop_level; | |
231 | ||
232 | /* Total number of times command_loop has read a key sequence. */ | |
233 | int num_input_keys; | |
234 | ||
235 | /* Last input character read as a command. */ | |
236 | Lisp_Object last_command_char; | |
237 | ||
7d6de002 RS |
238 | /* Last input character read as a command, not counting menus |
239 | reached by the mouse. */ | |
240 | Lisp_Object last_nonmenu_event; | |
241 | ||
284f4730 JB |
242 | /* Last input character read for any purpose. */ |
243 | Lisp_Object last_input_char; | |
244 | ||
dbc4e1c1 | 245 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 246 | Lisp_Object Vunread_command_events; |
284f4730 | 247 | |
86e5706b RS |
248 | /* If not -1, an event to be read as subsequent command input. */ |
249 | int unread_command_char; | |
250 | ||
cd21b839 JB |
251 | /* If not Qnil, this is a switch-frame event which we decided to put |
252 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 253 | next command input, after any unread_command_events. |
8f805655 JB |
254 | |
255 | read_key_sequence uses this to delay switch-frame events until the | |
256 | end of the key sequence; Fread_char uses it to put off switch-frame | |
257 | events until a non-ASCII event is acceptable as input. */ | |
258 | Lisp_Object unread_switch_frame; | |
cd21b839 | 259 | |
9fa4395d RS |
260 | /* A mask of extra modifier bits to put into every keyboard char. */ |
261 | int extra_keyboard_modifiers; | |
262 | ||
284f4730 JB |
263 | /* Char to use as prefix when a meta character is typed in. |
264 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
265 | ||
266 | Lisp_Object meta_prefix_char; | |
267 | ||
268 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
269 | static int last_non_minibuf_size; | |
270 | ||
06ef7355 | 271 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
272 | static Lisp_Object Vauto_save_timeout; |
273 | ||
274 | /* Total number of times read_char has returned. */ | |
4abfba1f | 275 | int num_input_events; |
284f4730 | 276 | |
51172b6d | 277 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 278 | int num_nonmacro_input_events; |
51172b6d | 279 | |
284f4730 JB |
280 | /* Auto-save automatically when this many characters have been typed |
281 | since the last time. */ | |
282 | ||
283 | static int auto_save_interval; | |
284 | ||
c43b1734 | 285 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
286 | |
287 | int last_auto_save; | |
288 | ||
284f4730 | 289 | /* The command being executed by the command loop. |
6c7178b9 KH |
290 | Commands may set this, and the value set will be copied into |
291 | current_kboard->Vlast_command instead of the actual command. */ | |
284f4730 JB |
292 | Lisp_Object this_command; |
293 | ||
b453f72e KH |
294 | /* The value of point when the last command was executed. */ |
295 | int last_point_position; | |
296 | ||
047688cb RS |
297 | /* The buffer that was current when the last command was started. */ |
298 | Lisp_Object last_point_position_buffer; | |
299 | ||
4c52b668 KH |
300 | /* The frame in which the last input event occurred, or Qmacro if the |
301 | last event came from a macro. We use this to determine when to | |
302 | generate switch-frame events. This may be cleared by functions | |
303 | like Fselect_frame, to make sure that a switch-frame event is | |
304 | generated by the next character. */ | |
305 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
306 | |
307 | /* A user-visible version of the above, intended to allow users to | |
308 | figure out where the last event came from, if the event doesn't | |
309 | carry that information itself (i.e. if it was a character). */ | |
310 | Lisp_Object Vlast_event_frame; | |
311 | ||
1113d9db JB |
312 | /* The timestamp of the last input event we received from the X server. |
313 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
314 | unsigned long last_event_timestamp; |
315 | ||
316 | Lisp_Object Qself_insert_command; | |
317 | Lisp_Object Qforward_char; | |
318 | Lisp_Object Qbackward_char; | |
e58aa385 | 319 | Lisp_Object Qundefined; |
d925fb39 | 320 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
321 | |
322 | /* read_key_sequence stores here the command definition of the | |
323 | key sequence that it reads. */ | |
324 | Lisp_Object read_key_sequence_cmd; | |
325 | ||
326 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
327 | Lisp_Object Vtop_level; | |
328 | ||
329 | /* User-supplied string to translate input characters through. */ | |
330 | Lisp_Object Vkeyboard_translate_table; | |
331 | ||
332 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
333 | extern Lisp_Object Vfunction_key_map; | |
334 | ||
e0301c07 RS |
335 | /* Another keymap that maps key sequences into key sequences. |
336 | This one takes precedence over ordinary definitions. */ | |
337 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 338 | |
86e5706b RS |
339 | /* Non-nil means deactivate the mark at end of this command. */ |
340 | Lisp_Object Vdeactivate_mark; | |
341 | ||
48e416d4 RS |
342 | /* Menu bar specified in Lucid Emacs fashion. */ |
343 | ||
344 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
345 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
346 | ||
cdb9d665 RS |
347 | Lisp_Object Qecho_area_clear_hook; |
348 | ||
86e5706b | 349 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
350 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
351 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 352 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
353 | /* Hook run after a command if there's no more input soon. */ |
354 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
355 | ||
356 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
357 | int post_command_idle_delay; | |
86e5706b | 358 | |
8a792f3a RS |
359 | /* List of deferred actions to be performed at a later time. |
360 | The precise format isn't relevant here; we just check whether it is nil. */ | |
361 | Lisp_Object Vdeferred_action_list; | |
362 | ||
363 | /* Function to call to handle deferred actions, when there are any. */ | |
364 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 365 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 366 | |
284f4730 JB |
367 | /* File in which we write all commands we read. */ |
368 | FILE *dribble; | |
369 | ||
370 | /* Nonzero if input is available. */ | |
371 | int input_pending; | |
372 | ||
b04904fb RS |
373 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
374 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
375 | ||
284f4730 JB |
376 | int meta_key; |
377 | ||
378 | extern char *pending_malloc_warning; | |
379 | ||
beecf6a1 KH |
380 | /* Circular buffer for pre-read keyboard input. */ |
381 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
382 | ||
383 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
384 | ||
385 | The interrupt-level event handlers will never enqueue an event on a | |
386 | frame which is not in Vframe_list, and once an event is dequeued, | |
387 | internal_last_event_frame or the event itself points to the frame. | |
388 | So that's all fine. | |
389 | ||
390 | But while the event is sitting in the queue, it's completely | |
391 | unprotected. Suppose the user types one command which will run for | |
392 | a while and then delete a frame, and then types another event at | |
393 | the frame that will be deleted, before the command gets around to | |
394 | it. Suppose there are no references to this frame elsewhere in | |
395 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
396 | have an event referring to a freed frame, which will crash Emacs | |
397 | when it is dequeued. | |
398 | ||
399 | Similar things happen when an event on a scroll bar is enqueued; the | |
400 | window may be deleted while the event is in the queue. | |
401 | ||
402 | So, we use this vector to protect the frame_or_window field in the | |
403 | event queue. That way, they'll be dequeued as dead frames or | |
404 | windows, but still valid lisp objects. | |
405 | ||
406 | If kbd_buffer[i].kind != no_event, then | |
407 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
408 | == kbd_buffer[i].frame_or_window. */ | |
409 | static Lisp_Object kbd_buffer_frame_or_window; | |
410 | ||
411 | /* Pointer to next available character in kbd_buffer. | |
412 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
413 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
414 | next available char is in kbd_buffer[0]. */ | |
415 | static struct input_event *kbd_fetch_ptr; | |
416 | ||
417 | /* Pointer to next place to store character in kbd_buffer. This | |
418 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
419 | character should go in kbd_buffer[0]. */ | |
420 | static volatile struct input_event *kbd_store_ptr; | |
421 | ||
422 | /* The above pair of variables forms a "queue empty" flag. When we | |
423 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
424 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
425 | there is input available iff the two pointers are not equal. | |
426 | ||
427 | Why not just have a flag set and cleared by the enqueuing and | |
428 | dequeuing functions? Such a flag could be screwed up by interrupts | |
429 | at inopportune times. */ | |
430 | ||
f3253854 | 431 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
432 | mouse moves, and motion events will appear in the input stream. |
433 | Otherwise, mouse motion is ignored. */ | |
434 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 435 | |
284f4730 JB |
436 | /* Symbols to head events. */ |
437 | Lisp_Object Qmouse_movement; | |
3c370943 | 438 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 439 | Lisp_Object Qswitch_frame; |
bbdc2092 | 440 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
441 | Lisp_Object Qiconify_frame; |
442 | Lisp_Object Qmake_frame_visible; | |
cd21b839 | 443 | |
284f4730 JB |
444 | /* Symbols to denote kinds of events. */ |
445 | Lisp_Object Qfunction_key; | |
446 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
447 | #ifdef WINDOWSNT |
448 | Lisp_Object Qmouse_wheel; | |
449 | #endif | |
284f4730 | 450 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
451 | |
452 | /* Properties of event headers. */ | |
453 | Lisp_Object Qevent_kind; | |
88cb0656 | 454 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 455 | |
598a9fa7 JB |
456 | Lisp_Object Qmenu_enable; |
457 | ||
0a7f1fc0 JB |
458 | /* An event header symbol HEAD may have a property named |
459 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
460 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
461 | mask of modifiers applied to it. If present, this is used to help | |
462 | speed up parse_modifiers. */ | |
463 | Lisp_Object Qevent_symbol_element_mask; | |
464 | ||
465 | /* An unmodified event header BASE may have a property named | |
466 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
467 | modified versions of BASE. If present, this helps speed up | |
468 | apply_modifiers. */ | |
469 | Lisp_Object Qmodifier_cache; | |
470 | ||
5ec75a55 | 471 | /* Symbols to use for parts of windows. */ |
284f4730 | 472 | Lisp_Object Qmode_line; |
e5d77022 | 473 | Lisp_Object Qvertical_line; |
3c370943 | 474 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
475 | Lisp_Object Qmenu_bar; |
476 | ||
477 | extern Lisp_Object Qmenu_enable; | |
284f4730 | 478 | |
f4255cd1 JB |
479 | Lisp_Object recursive_edit_unwind (), command_loop (); |
480 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 481 | Lisp_Object Qextended_command_history; |
c04cbc3b | 482 | EMACS_TIME timer_check (); |
284f4730 | 483 | |
2c834fb3 KH |
484 | extern char *x_get_keysym_name (); |
485 | ||
8eb4d8ef RS |
486 | static void record_menu_key (); |
487 | ||
6e4e64a8 RS |
488 | void swallow_events (); |
489 | ||
f4eef8b4 RS |
490 | Lisp_Object Qpolling_period; |
491 | ||
d9d4c147 | 492 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
493 | Lisp_Object Vtimer_list; |
494 | ||
d9d4c147 KH |
495 | /* List of idle time timers. Appears in order of next scheduled event. */ |
496 | Lisp_Object Vtimer_idle_list; | |
497 | ||
87dd9b9b RS |
498 | /* Incremented whenever a timer is run. */ |
499 | int timers_run; | |
500 | ||
a9f16aa9 KH |
501 | extern Lisp_Object Vprint_level, Vprint_length; |
502 | ||
e3ee7487 RS |
503 | extern nonascii_insert_offset; |
504 | ||
ffd56f97 JB |
505 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
506 | happens. */ | |
507 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
508 | |
509 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
510 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
511 | int interrupt_input; | |
512 | ||
513 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
514 | int interrupts_deferred; | |
515 | ||
87dd9b9b | 516 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
517 | int flow_control; |
518 | ||
284f4730 JB |
519 | /* Allow m- file to inhibit use of FIONREAD. */ |
520 | #ifdef BROKEN_FIONREAD | |
521 | #undef FIONREAD | |
522 | #endif | |
523 | ||
524 | /* We are unable to use interrupts if FIONREAD is not available, | |
525 | so flush SIGIO so we won't try. */ | |
526 | #ifndef FIONREAD | |
527 | #ifdef SIGIO | |
528 | #undef SIGIO | |
529 | #endif | |
530 | #endif | |
531 | ||
e98a93eb | 532 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 533 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 534 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
535 | #define POLL_FOR_INPUT |
536 | #endif | |
284f4730 JB |
537 | \f |
538 | /* Global variable declarations. */ | |
539 | ||
540 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
541 | void (*keyboard_init_hook) (); | |
542 | ||
543 | static int read_avail_input (); | |
544 | static void get_input_pending (); | |
9fd7d808 | 545 | static int readable_events (); |
8150596a RS |
546 | static Lisp_Object read_char_x_menu_prompt (); |
547 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 548 | static Lisp_Object make_lispy_event (); |
514354e9 | 549 | #ifdef HAVE_MOUSE |
a612e298 | 550 | static Lisp_Object make_lispy_movement (); |
514354e9 | 551 | #endif |
a612e298 RS |
552 | static Lisp_Object modify_event_symbol (); |
553 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 554 | static int parse_solitary_modifier (); |
284f4730 JB |
555 | |
556 | /* > 0 if we are to echo keystrokes. */ | |
557 | static int echo_keystrokes; | |
558 | ||
8026024c KH |
559 | /* Nonzero means don't try to suspend even if the operating system seems |
560 | to support it. */ | |
561 | static int cannot_suspend; | |
562 | ||
284f4730 JB |
563 | #define min(a,b) ((a)<(b)?(a):(b)) |
564 | #define max(a,b) ((a)>(b)?(a):(b)) | |
565 | ||
566 | /* Install the string STR as the beginning of the string of echoing, | |
567 | so that it serves as a prompt for the next character. | |
568 | Also start echoing. */ | |
569 | ||
570 | echo_prompt (str) | |
571 | char *str; | |
572 | { | |
573 | int len = strlen (str); | |
7a80a6f6 | 574 | |
ba72822c KH |
575 | if (len > ECHOBUFSIZE - 4) |
576 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
577 | bcopy (str, current_kboard->echobuf, len); |
578 | current_kboard->echoptr = current_kboard->echobuf + len; | |
579 | *current_kboard->echoptr = '\0'; | |
284f4730 | 580 | |
c5fdd383 | 581 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 582 | |
3dbd9ee4 | 583 | echo_now (); |
284f4730 JB |
584 | } |
585 | ||
df0f2ba1 | 586 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
587 | C can be a character, which is printed prettily ("M-C-x" and all that |
588 | jazz), or a symbol, whose name is printed. */ | |
589 | ||
590 | echo_char (c) | |
591 | Lisp_Object c; | |
592 | { | |
593 | extern char *push_key_description (); | |
594 | ||
c5fdd383 | 595 | if (current_kboard->immediate_echo) |
284f4730 | 596 | { |
c5fdd383 | 597 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 598 | |
c5fdd383 | 599 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
600 | *ptr++ = ' '; |
601 | ||
602 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 603 | c = EVENT_HEAD (c); |
284f4730 | 604 | |
8c18cbfb | 605 | if (INTEGERP (c)) |
284f4730 | 606 | { |
c5fdd383 | 607 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
608 | return; |
609 | ||
cb5df6ae | 610 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 611 | } |
8c18cbfb | 612 | else if (SYMBOLP (c)) |
284f4730 JB |
613 | { |
614 | struct Lisp_String *name = XSYMBOL (c)->name; | |
c5fdd383 | 615 | if ((ptr - current_kboard->echobuf) + name->size + 4 > ECHOBUFSIZE) |
284f4730 JB |
616 | return; |
617 | bcopy (name->data, ptr, name->size); | |
618 | ptr += name->size; | |
619 | } | |
620 | ||
c5fdd383 | 621 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 622 | && help_char_p (c)) |
284f4730 JB |
623 | { |
624 | strcpy (ptr, " (Type ? for further options)"); | |
625 | ptr += strlen (ptr); | |
626 | } | |
627 | ||
628 | *ptr = 0; | |
c5fdd383 | 629 | current_kboard->echoptr = ptr; |
284f4730 | 630 | |
3dbd9ee4 | 631 | echo_now (); |
284f4730 JB |
632 | } |
633 | } | |
634 | ||
635 | /* Temporarily add a dash to the end of the echo string if it's not | |
636 | empty, so that it serves as a mini-prompt for the very next character. */ | |
637 | ||
638 | echo_dash () | |
639 | { | |
c5fdd383 KH |
640 | if (!current_kboard->immediate_echo |
641 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 642 | return; |
7a80a6f6 | 643 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
644 | if (current_kboard->echo_after_prompt |
645 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 646 | return; |
4bafa972 | 647 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 648 | if (current_kboard->echoptr == 0) |
4bafa972 | 649 | return; |
284f4730 JB |
650 | |
651 | /* Put a dash at the end of the buffer temporarily, | |
652 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
653 | current_kboard->echoptr[0] = '-'; |
654 | current_kboard->echoptr[1] = 0; | |
284f4730 | 655 | |
3dbd9ee4 | 656 | echo_now (); |
284f4730 JB |
657 | } |
658 | ||
659 | /* Display the current echo string, and begin echoing if not already | |
660 | doing so. */ | |
661 | ||
07a59269 | 662 | void |
3dbd9ee4 | 663 | echo_now () |
284f4730 | 664 | { |
c5fdd383 | 665 | if (!current_kboard->immediate_echo) |
284f4730 JB |
666 | { |
667 | int i; | |
c5fdd383 | 668 | current_kboard->immediate_echo = 1; |
284f4730 JB |
669 | |
670 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
671 | { |
672 | Lisp_Object c; | |
673 | c = XVECTOR (this_command_keys)->contents[i]; | |
674 | if (! (EVENT_HAS_PARAMETERS (c) | |
675 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
676 | echo_char (c); | |
677 | } | |
284f4730 JB |
678 | echo_dash (); |
679 | } | |
680 | ||
681 | echoing = 1; | |
c5fdd383 | 682 | message1_nolog (current_kboard->echobuf); |
284f4730 JB |
683 | echoing = 0; |
684 | ||
685 | if (waiting_for_input && !NILP (Vquit_flag)) | |
686 | quit_throw_to_read_char (); | |
687 | } | |
688 | ||
689 | /* Turn off echoing, for the start of a new command. */ | |
690 | ||
691 | cancel_echoing () | |
692 | { | |
c5fdd383 KH |
693 | current_kboard->immediate_echo = 0; |
694 | current_kboard->echoptr = current_kboard->echobuf; | |
695 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 696 | ok_to_echo_at_next_pause = 0; |
284f4730 JB |
697 | } |
698 | ||
699 | /* Return the length of the current echo string. */ | |
700 | ||
701 | static int | |
702 | echo_length () | |
703 | { | |
c5fdd383 | 704 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
705 | } |
706 | ||
707 | /* Truncate the current echo message to its first LEN chars. | |
708 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 709 | switches frames while entering a key sequence. */ |
284f4730 JB |
710 | |
711 | static void | |
712 | echo_truncate (len) | |
713 | int len; | |
714 | { | |
c5fdd383 KH |
715 | current_kboard->echobuf[len] = '\0'; |
716 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 717 | truncate_echo_area (len); |
284f4730 JB |
718 | } |
719 | ||
720 | \f | |
721 | /* Functions for manipulating this_command_keys. */ | |
722 | static void | |
723 | add_command_key (key) | |
724 | Lisp_Object key; | |
725 | { | |
6569cc8d JB |
726 | int size = XVECTOR (this_command_keys)->size; |
727 | ||
71918b75 RS |
728 | /* If reset-this-command-length was called recently, obey it now. |
729 | See the doc string of that function for an explanation of why. */ | |
730 | if (before_command_restore_flag) | |
731 | { | |
732 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
733 | if (this_command_key_count < this_single_command_key_start) |
734 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
735 | echo_truncate (before_command_echo_length_1); |
736 | before_command_restore_flag = 0; | |
737 | } | |
738 | ||
6569cc8d | 739 | if (this_command_key_count >= size) |
284f4730 | 740 | { |
9b8eb840 | 741 | Lisp_Object new_keys; |
6569cc8d | 742 | |
9b8eb840 | 743 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
744 | bcopy (XVECTOR (this_command_keys)->contents, |
745 | XVECTOR (new_keys)->contents, | |
8f805655 | 746 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
747 | |
748 | this_command_keys = new_keys; | |
284f4730 | 749 | } |
6569cc8d JB |
750 | |
751 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
752 | } |
753 | \f | |
754 | Lisp_Object | |
755 | recursive_edit_1 () | |
756 | { | |
757 | int count = specpdl_ptr - specpdl; | |
758 | Lisp_Object val; | |
759 | ||
760 | if (command_loop_level > 0) | |
761 | { | |
762 | specbind (Qstandard_output, Qt); | |
763 | specbind (Qstandard_input, Qt); | |
764 | } | |
765 | ||
766 | val = command_loop (); | |
767 | if (EQ (val, Qt)) | |
768 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
769 | /* Handle throw from read_minibuf when using minibuffer |
770 | while it's active but we're in another window. */ | |
771 | if (STRINGP (val)) | |
772 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 773 | |
cb5df6ae | 774 | return unbind_to (count, Qnil); |
284f4730 JB |
775 | } |
776 | ||
777 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 778 | |
07a59269 | 779 | void |
284f4730 JB |
780 | record_auto_save () |
781 | { | |
c43b1734 | 782 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 783 | } |
5846638c RS |
784 | |
785 | /* Make an auto save happen as soon as possible at command level. */ | |
786 | ||
787 | force_auto_save_soon () | |
788 | { | |
789 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
790 | |
791 | record_asynch_buffer_change (); | |
5846638c | 792 | } |
284f4730 | 793 | \f |
284f4730 JB |
794 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
795 | "Invoke the editor command loop recursively.\n\ | |
796 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
797 | that tells this function to return.\n\ | |
798 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
799 | This function is called by the editor initialization to begin editing.") | |
800 | () | |
801 | { | |
802 | int count = specpdl_ptr - specpdl; | |
803 | Lisp_Object val; | |
804 | ||
805 | command_loop_level++; | |
806 | update_mode_lines = 1; | |
807 | ||
808 | record_unwind_protect (recursive_edit_unwind, | |
809 | (command_loop_level | |
810 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
811 | ? Fcurrent_buffer () | |
812 | : Qnil); | |
813 | recursive_edit_1 (); | |
814 | return unbind_to (count, Qnil); | |
815 | } | |
816 | ||
817 | Lisp_Object | |
818 | recursive_edit_unwind (buffer) | |
819 | Lisp_Object buffer; | |
820 | { | |
821 | if (!NILP (buffer)) | |
822 | Fset_buffer (buffer); | |
823 | ||
824 | command_loop_level--; | |
825 | update_mode_lines = 1; | |
826 | return Qnil; | |
827 | } | |
828 | \f | |
604ccd1d | 829 | static void |
1e8bd3da | 830 | any_kboard_state () |
604ccd1d | 831 | { |
1e8bd3da RS |
832 | #ifdef MULTI_KBOARD |
833 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
834 | it will right away be read by read_key_sequence, | |
835 | and then if we do switch KBOARDS, it will go into the side | |
836 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 837 | if (CONSP (Vunread_command_events)) |
4524b161 | 838 | { |
c5fdd383 KH |
839 | current_kboard->kbd_queue |
840 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
841 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 842 | } |
604ccd1d | 843 | Vunread_command_events = Qnil; |
1e8bd3da RS |
844 | #endif |
845 | single_kboard = 0; | |
846 | #endif | |
604ccd1d | 847 | } |
1e8bd3da RS |
848 | |
849 | /* Switch to the single-kboard state, making current_kboard | |
850 | the only KBOARD from which further input is accepted. */ | |
851 | ||
852 | void | |
853 | single_kboard_state () | |
854 | { | |
855 | #ifdef MULTI_KBOARD | |
856 | single_kboard = 1; | |
604ccd1d | 857 | #endif |
1e8bd3da RS |
858 | } |
859 | ||
860 | /* Maintain a stack of kboards, so other parts of Emacs | |
861 | can switch temporarily to the kboard of a given frame | |
862 | and then revert to the previous status. */ | |
863 | ||
864 | struct kboard_stack | |
865 | { | |
866 | KBOARD *kboard; | |
867 | struct kboard_stack *next; | |
868 | }; | |
869 | ||
870 | static struct kboard_stack *kboard_stack; | |
871 | ||
872 | void | |
873 | push_frame_kboard (f) | |
874 | FRAME_PTR f; | |
875 | { | |
ab48365b | 876 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
877 | struct kboard_stack *p |
878 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
879 | ||
880 | p->next = kboard_stack; | |
881 | p->kboard = current_kboard; | |
882 | kboard_stack = p; | |
883 | ||
884 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 885 | #endif |
1e8bd3da RS |
886 | } |
887 | ||
888 | void | |
889 | pop_frame_kboard () | |
890 | { | |
ab48365b | 891 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
892 | struct kboard_stack *p = kboard_stack; |
893 | current_kboard = p->kboard; | |
894 | kboard_stack = p->next; | |
895 | xfree (p); | |
ab48365b | 896 | #endif |
1e8bd3da RS |
897 | } |
898 | \f | |
899 | /* Handle errors that are not handled at inner levels | |
900 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 901 | |
284f4730 JB |
902 | Lisp_Object |
903 | cmd_error (data) | |
904 | Lisp_Object data; | |
a1341f75 | 905 | { |
a9f16aa9 | 906 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
907 | char macroerror[50]; |
908 | ||
909 | if (!NILP (executing_macro)) | |
910 | { | |
911 | if (executing_macro_iterations == 1) | |
912 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
913 | else | |
914 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
915 | executing_macro_iterations); | |
916 | } | |
917 | else | |
918 | *macroerror = 0; | |
a9f16aa9 | 919 | |
a1341f75 RS |
920 | Vstandard_output = Qt; |
921 | Vstandard_input = Qt; | |
922 | Vexecuting_macro = Qnil; | |
9f58e89e | 923 | executing_macro = Qnil; |
d8bcf58e | 924 | current_kboard->Vprefix_arg = Qnil; |
df0f2ba1 | 925 | cancel_echoing (); |
a9f16aa9 KH |
926 | |
927 | /* Avoid unquittable loop if data contains a circular list. */ | |
928 | old_level = Vprint_level; | |
929 | old_length = Vprint_length; | |
0c04a67e RS |
930 | XSETFASTINT (Vprint_level, 10); |
931 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 932 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
933 | Vprint_level = old_level; |
934 | Vprint_length = old_length; | |
a1341f75 RS |
935 | |
936 | Vquit_flag = Qnil; | |
937 | ||
938 | Vinhibit_quit = Qnil; | |
c5fdd383 | 939 | #ifdef MULTI_KBOARD |
1e8bd3da | 940 | any_kboard_state (); |
ff4b06d3 | 941 | #endif |
a1341f75 RS |
942 | |
943 | return make_number (0); | |
944 | } | |
945 | ||
07a59269 | 946 | void |
a1341f75 RS |
947 | cmd_error_internal (data, context) |
948 | Lisp_Object data; | |
949 | char *context; | |
284f4730 | 950 | { |
284f4730 | 951 | Lisp_Object stream; |
284f4730 JB |
952 | |
953 | Vquit_flag = Qnil; | |
954 | Vinhibit_quit = Qt; | |
284f4730 JB |
955 | echo_area_glyphs = 0; |
956 | ||
ff11dfa1 | 957 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
958 | yet, or we're not interactive, it's best to dump this message out |
959 | to stderr and exit. */ | |
ff11dfa1 | 960 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
961 | || noninteractive) |
962 | stream = Qexternal_debugging_output; | |
963 | else | |
964 | { | |
965 | Fdiscard_input (); | |
966 | bitch_at_user (); | |
967 | stream = Qt; | |
968 | } | |
969 | ||
a1341f75 RS |
970 | if (context != 0) |
971 | write_string_1 (context, -1, stream); | |
972 | ||
22a51344 | 973 | print_error_message (data, stream); |
284f4730 | 974 | |
ff11dfa1 | 975 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 976 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
ff11dfa1 | 977 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
978 | || noninteractive) |
979 | { | |
980 | Fterpri (stream); | |
981 | Fkill_emacs (make_number (-1)); | |
982 | } | |
284f4730 JB |
983 | } |
984 | \f | |
985 | Lisp_Object command_loop_1 (); | |
986 | Lisp_Object command_loop_2 (); | |
987 | Lisp_Object top_level_1 (); | |
988 | ||
989 | /* Entry to editor-command-loop. | |
990 | This level has the catches for exiting/returning to editor command loop. | |
991 | It returns nil to exit recursive edit, t to abort it. */ | |
992 | ||
993 | Lisp_Object | |
994 | command_loop () | |
995 | { | |
996 | if (command_loop_level > 0 || minibuf_level > 0) | |
997 | { | |
998 | return internal_catch (Qexit, command_loop_2, Qnil); | |
999 | } | |
1000 | else | |
1001 | while (1) | |
1002 | { | |
1003 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1004 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
df0f2ba1 | 1005 | |
284f4730 JB |
1006 | /* End of file in -batch run causes exit here. */ |
1007 | if (noninteractive) | |
1008 | Fkill_emacs (Qt); | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | /* Here we catch errors in execution of commands within the | |
1013 | editing loop, and reenter the editing loop. | |
1014 | When there is an error, cmd_error runs and returns a non-nil | |
1015 | value to us. A value of nil means that cmd_loop_1 itself | |
1016 | returned due to end of file (or end of kbd macro). */ | |
1017 | ||
1018 | Lisp_Object | |
1019 | command_loop_2 () | |
1020 | { | |
1021 | register Lisp_Object val; | |
1022 | ||
1023 | do | |
1024 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1025 | while (!NILP (val)); | |
1026 | ||
1027 | return Qnil; | |
1028 | } | |
1029 | ||
1030 | Lisp_Object | |
1031 | top_level_2 () | |
1032 | { | |
1033 | return Feval (Vtop_level); | |
1034 | } | |
1035 | ||
1036 | Lisp_Object | |
1037 | top_level_1 () | |
1038 | { | |
1039 | /* On entry to the outer level, run the startup file */ | |
1040 | if (!NILP (Vtop_level)) | |
1041 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1042 | else if (!NILP (Vpurify_flag)) | |
1043 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1044 | else | |
1045 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1046 | return Qnil; | |
1047 | } | |
1048 | ||
1049 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1050 | "Exit all recursive editing levels.") | |
1051 | () | |
1052 | { | |
1053 | Fthrow (Qtop_level, Qnil); | |
1054 | } | |
1055 | ||
1056 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1057 | "Exit from the innermost recursive edit or minibuffer.") | |
1058 | () | |
1059 | { | |
1060 | if (command_loop_level > 0 || minibuf_level > 0) | |
1061 | Fthrow (Qexit, Qnil); | |
1062 | ||
1063 | error ("No recursive edit is in progress"); | |
1064 | } | |
1065 | ||
1066 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1067 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1068 | () | |
1069 | { | |
1070 | if (command_loop_level > 0 || minibuf_level > 0) | |
1071 | Fthrow (Qexit, Qt); | |
1072 | ||
1073 | error ("No recursive edit is in progress"); | |
1074 | } | |
1075 | \f | |
1076 | /* This is the actual command reading loop, | |
1077 | sans error-handling encapsulation. */ | |
1078 | ||
1079 | Lisp_Object Fcommand_execute (); | |
1080 | static int read_key_sequence (); | |
68f297c5 | 1081 | void safe_run_hooks (); |
284f4730 JB |
1082 | |
1083 | Lisp_Object | |
1084 | command_loop_1 () | |
1085 | { | |
48e416d4 | 1086 | Lisp_Object cmd, tem; |
37cd9f30 | 1087 | int lose, lose2; |
284f4730 JB |
1088 | int nonundocount; |
1089 | Lisp_Object keybuf[30]; | |
1090 | int i; | |
1091 | int no_redisplay; | |
1092 | int no_direct; | |
86e5706b RS |
1093 | int prev_modiff; |
1094 | struct buffer *prev_buffer; | |
c5fdd383 | 1095 | #ifdef MULTI_KBOARD |
1e8bd3da | 1096 | int was_locked = single_kboard; |
bded54dd | 1097 | #endif |
284f4730 | 1098 | |
d9b641bb | 1099 | current_kboard->Vprefix_arg = Qnil; |
86e5706b | 1100 | Vdeactivate_mark = Qnil; |
284f4730 | 1101 | waiting_for_input = 0; |
df0f2ba1 | 1102 | cancel_echoing (); |
284f4730 | 1103 | |
284f4730 JB |
1104 | nonundocount = 0; |
1105 | no_redisplay = 0; | |
1106 | this_command_key_count = 0; | |
6321824f | 1107 | this_single_command_key_start = 0; |
284f4730 | 1108 | |
a612e298 RS |
1109 | /* Make sure this hook runs after commands that get errors and |
1110 | throw to top level. */ | |
a98ea3f9 RS |
1111 | /* Note that the value cell will never directly contain nil |
1112 | if the symbol is a local variable. */ | |
e98a93eb | 1113 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1114 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1115 | |
8a792f3a RS |
1116 | if (!NILP (Vdeferred_action_list)) |
1117 | call0 (Vdeferred_action_function); | |
1118 | ||
e98a93eb | 1119 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1120 | { |
1121 | if (NILP (Vunread_command_events) | |
1122 | && NILP (Vexecuting_macro) | |
41365083 | 1123 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1124 | safe_run_hooks (Qpost_command_idle_hook); |
1125 | } | |
1126 | ||
51d5a2c9 | 1127 | /* Do this after running Vpost_command_hook, for consistency. */ |
6c7178b9 | 1128 | current_kboard->Vlast_command = this_command; |
51d5a2c9 | 1129 | |
284f4730 JB |
1130 | while (1) |
1131 | { | |
284f4730 JB |
1132 | /* Make sure the current window's buffer is selected. */ |
1133 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1134 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1135 | ||
1136 | /* Display any malloc warning that just came out. Use while because | |
1137 | displaying one warning can cause another. */ | |
1138 | ||
1139 | while (pending_malloc_warning) | |
1140 | display_malloc_warning (); | |
1141 | ||
1142 | no_direct = 0; | |
1143 | ||
86e5706b RS |
1144 | Vdeactivate_mark = Qnil; |
1145 | ||
284f4730 | 1146 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1147 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1148 | |
93127526 RS |
1149 | if (minibuf_level && echo_area_glyphs |
1150 | && EQ (minibuf_window, echo_area_window)) | |
284f4730 | 1151 | { |
f1bed6d8 RS |
1152 | /* Bind inhibit-quit to t so that C-g gets read in |
1153 | rather than quitting back to the minibuffer. */ | |
1154 | int count = specpdl_ptr - specpdl; | |
1155 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1156 | |
db08707d | 1157 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1158 | /* Clear the echo area. */ |
c6a67acd | 1159 | message2 (0, 0); |
cdb9d665 | 1160 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1161 | |
db08707d RS |
1162 | unbind_to (count, Qnil); |
1163 | ||
e6aa7813 | 1164 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1165 | if (!NILP (Vquit_flag)) |
1166 | { | |
1167 | Vquit_flag = Qnil; | |
24597608 | 1168 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1169 | } |
1170 | } | |
1171 | ||
1172 | #ifdef C_ALLOCA | |
ff4b06d3 | 1173 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1174 | /* Since we can free the most stuff here. */ |
1175 | #endif /* C_ALLOCA */ | |
1176 | ||
8f805655 | 1177 | #if 0 |
8f805655 JB |
1178 | /* Select the frame that the last event came from. Usually, |
1179 | switch-frame events will take care of this, but if some lisp | |
1180 | code swallows a switch-frame event, we'll fix things up here. | |
1181 | Is this a good idea? */ | |
8c18cbfb | 1182 | if (FRAMEP (internal_last_event_frame) |
3c370943 JB |
1183 | && XFRAME (internal_last_event_frame) != selected_frame) |
1184 | Fselect_frame (internal_last_event_frame, Qnil); | |
284f4730 | 1185 | #endif |
48e416d4 RS |
1186 | /* If it has changed current-menubar from previous value, |
1187 | really recompute the menubar from the value. */ | |
a646e520 RS |
1188 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1189 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1190 | call0 (Qrecompute_lucid_menubar); |
1191 | ||
71918b75 RS |
1192 | before_command_key_count = this_command_key_count; |
1193 | before_command_echo_length = echo_length (); | |
1194 | ||
d7437ef6 RS |
1195 | this_command = Qnil; |
1196 | ||
8f805655 | 1197 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1198 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1199 | Qnil, 0, 1, 1); |
8f805655 | 1200 | |
6fac1409 RS |
1201 | /* A filter may have run while we were reading the input. */ |
1202 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1203 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1204 | ||
8f805655 JB |
1205 | ++num_input_keys; |
1206 | ||
284f4730 JB |
1207 | /* Now we have read a key sequence of length I, |
1208 | or else I is 0 and we found end of file. */ | |
1209 | ||
1210 | if (i == 0) /* End of file -- happens only in */ | |
1211 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1212 | /* -1 means read_key_sequence got a menu that was rejected. |
1213 | Just loop around and read another command. */ | |
1214 | if (i == -1) | |
1215 | { | |
1216 | cancel_echoing (); | |
1217 | this_command_key_count = 0; | |
6321824f | 1218 | this_single_command_key_start = 0; |
ff4b06d3 | 1219 | goto finalize; |
dcc408a0 | 1220 | } |
284f4730 | 1221 | |
284f4730 JB |
1222 | last_command_char = keybuf[i - 1]; |
1223 | ||
75c0b143 RS |
1224 | /* If the previous command tried to force a specific window-start, |
1225 | forget about that, in case this command moves point far away | |
c422836d KH |
1226 | from that position. But also throw away beg_unchanged and |
1227 | end_unchanged information in that case, so that redisplay will | |
1228 | update the whole window properly. */ | |
1229 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1230 | { | |
1231 | XWINDOW (selected_window)->force_start = Qnil; | |
1232 | beg_unchanged = end_unchanged = 0; | |
1233 | } | |
75c0b143 | 1234 | |
284f4730 JB |
1235 | cmd = read_key_sequence_cmd; |
1236 | if (!NILP (Vexecuting_macro)) | |
1237 | { | |
1238 | if (!NILP (Vquit_flag)) | |
1239 | { | |
1240 | Vexecuting_macro = Qt; | |
1241 | QUIT; /* Make some noise. */ | |
1242 | /* Will return since macro now empty. */ | |
1243 | } | |
1244 | } | |
1245 | ||
1246 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1247 | cases identified below that set no_redisplay to 1. |
1248 | (actually, there's currently no way to prevent the redisplay, | |
1249 | and no_redisplay is ignored. | |
beecf6a1 | 1250 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1251 | no_redisplay = 0; |
1252 | ||
86e5706b RS |
1253 | prev_buffer = current_buffer; |
1254 | prev_modiff = MODIFF; | |
8746da95 | 1255 | last_point_position = PT; |
18cd2eeb | 1256 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1257 | |
284f4730 JB |
1258 | /* Execute the command. */ |
1259 | ||
86e5706b | 1260 | this_command = cmd; |
a98ea3f9 RS |
1261 | /* Note that the value cell will never directly contain nil |
1262 | if the symbol is a local variable. */ | |
e98a93eb | 1263 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1264 | safe_run_hooks (Qpre_command_hook); |
86e5706b | 1265 | |
258bf746 | 1266 | if (NILP (this_command)) |
284f4730 JB |
1267 | { |
1268 | /* nil means key is undefined. */ | |
1269 | bitch_at_user (); | |
c5fdd383 | 1270 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1271 | update_mode_lines = 1; |
d8bcf58e | 1272 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1273 | } |
1274 | else | |
1275 | { | |
d8bcf58e | 1276 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 JB |
1277 | { |
1278 | /* Recognize some common commands in common situations and | |
1279 | do them directly. */ | |
8001d352 | 1280 | if (EQ (this_command, Qforward_char) && PT < ZV) |
284f4730 | 1281 | { |
51ad8a68 | 1282 | struct Lisp_Char_Table *dp |
284f4730 | 1283 | = window_display_table (XWINDOW (selected_window)); |
37cd9f30 KH |
1284 | lose = FETCH_BYTE (PT); |
1285 | SET_PT (forward_point (1)); | |
0f7a8fee | 1286 | if ((dp |
82ba47d7 | 1287 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1288 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1289 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1290 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1291 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1292 | /* To extract the case of continuation on |
1293 | wide-column characters. */ | |
1294 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT)) == 1) | |
284f4730 JB |
1295 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1296 | >= MODIFF) | |
598ba4c7 RS |
1297 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1298 | >= OVERLAY_MODIFF) | |
284f4730 | 1299 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1300 | == PT - 1) |
284f4730 JB |
1301 | && !windows_or_buffers_changed |
1302 | && EQ (current_buffer->selective_display, Qnil) | |
1303 | && !detect_input_pending () | |
962ae636 | 1304 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1305 | && NILP (Vexecuting_macro)) |
1306 | no_redisplay = direct_output_forward_char (1); | |
1307 | goto directly_done; | |
1308 | } | |
8001d352 | 1309 | else if (EQ (this_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1310 | { |
51ad8a68 | 1311 | struct Lisp_Char_Table *dp |
284f4730 | 1312 | = window_display_table (XWINDOW (selected_window)); |
37cd9f30 KH |
1313 | SET_PT (forward_point (-1)); |
1314 | lose = FETCH_BYTE (PT); | |
0f7a8fee | 1315 | if ((dp |
ca873d73 | 1316 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1317 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1318 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1319 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1320 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1321 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1322 | >= MODIFF) | |
598ba4c7 RS |
1323 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1324 | >= OVERLAY_MODIFF) | |
284f4730 | 1325 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1326 | == PT + 1) |
284f4730 JB |
1327 | && !windows_or_buffers_changed |
1328 | && EQ (current_buffer->selective_display, Qnil) | |
1329 | && !detect_input_pending () | |
962ae636 | 1330 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1331 | && NILP (Vexecuting_macro)) |
1332 | no_redisplay = direct_output_forward_char (-1); | |
1333 | goto directly_done; | |
1334 | } | |
258bf746 | 1335 | else if (EQ (this_command, Qself_insert_command) |
284f4730 | 1336 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1337 | && INTEGERP (last_command_char)) |
284f4730 | 1338 | { |
89599794 | 1339 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1340 | int value; |
284f4730 | 1341 | |
fc9cce4e RS |
1342 | if (NILP (Vexecuting_macro) |
1343 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1344 | { |
1345 | if (!nonundocount || nonundocount >= 20) | |
1346 | { | |
1347 | Fundo_boundary (); | |
1348 | nonundocount = 0; | |
1349 | } | |
1350 | nonundocount++; | |
1351 | } | |
fc9cce4e RS |
1352 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1353 | < MODIFF) | |
598ba4c7 RS |
1354 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1355 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1356 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1357 | != PT) | |
4c61f38e | 1358 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1359 | || windows_or_buffers_changed |
1360 | || !EQ (current_buffer->selective_display, Qnil) | |
1361 | || detect_input_pending () | |
962ae636 | 1362 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e RS |
1363 | || !NILP (Vexecuting_macro)); |
1364 | value = internal_self_insert (c, 0); | |
1365 | if (value) | |
1366 | lose = 1; | |
1367 | if (value == 2) | |
1368 | nonundocount = 0; | |
1369 | ||
1370 | if (!lose | |
37cd9f30 | 1371 | && (PT == ZV || FETCH_BYTE (PT) == '\n')) |
284f4730 | 1372 | { |
51ad8a68 | 1373 | struct Lisp_Char_Table *dp |
284f4730 | 1374 | = window_display_table (XWINDOW (selected_window)); |
b8d9050d | 1375 | int lose = c; |
284f4730 | 1376 | |
e3ee7487 RS |
1377 | /* Add the offset to the character, for Finsert_char. |
1378 | We pass internal_self_insert the unmodified character | |
1379 | because it itself does this offsetting. */ | |
1380 | if (lose >= 0200 && lose <= 0377 | |
1381 | && ! NILP (current_buffer->enable_multibyte_characters)) | |
1382 | lose += nonascii_insert_offset; | |
1383 | ||
0f7a8fee JB |
1384 | if (dp) |
1385 | { | |
9b8eb840 | 1386 | Lisp_Object obj; |
0f7a8fee | 1387 | |
9b8eb840 | 1388 | obj = DISP_CHAR_VECTOR (dp, lose); |
054c8675 | 1389 | if (NILP (obj)) |
8e91f441 RS |
1390 | { |
1391 | /* Do it only for char codes | |
1392 | that by default display as themselves. */ | |
1393 | if (lose >= 0x20 && lose <= 0x7e) | |
1394 | no_redisplay = direct_output_for_insert (lose); | |
1395 | } | |
8c18cbfb | 1396 | else if (VECTORP (obj) |
054c8675 | 1397 | && XVECTOR (obj)->size == 1 |
8c18cbfb KH |
1398 | && (obj = XVECTOR (obj)->contents[0], |
1399 | INTEGERP (obj)) | |
054c8675 RS |
1400 | /* Insist face not specified in glyph. */ |
1401 | && (XINT (obj) & ((-1) << 8)) == 0) | |
bd48a052 RS |
1402 | no_redisplay |
1403 | = direct_output_for_insert (XINT (obj)); | |
0f7a8fee JB |
1404 | } |
1405 | else | |
1406 | { | |
1407 | if (lose >= 0x20 && lose <= 0x7e) | |
1408 | no_redisplay = direct_output_for_insert (lose); | |
1409 | } | |
284f4730 JB |
1410 | } |
1411 | goto directly_done; | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | /* Here for a command that isn't executed directly */ | |
1416 | ||
1417 | nonundocount = 0; | |
d8bcf58e | 1418 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1419 | Fundo_boundary (); |
158f7532 | 1420 | Fcommand_execute (this_command, Qnil, Qnil, Qnil); |
284f4730 | 1421 | |
284f4730 | 1422 | } |
a764a753 | 1423 | directly_done: ; |
284f4730 JB |
1424 | |
1425 | /* If there is a prefix argument, | |
6c7178b9 KH |
1426 | 1) We don't want Vlast_command to be ``universal-argument'' |
1427 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1428 | 2) we want to leave echoing on so that the prefix will be |
1429 | echoed as part of this key sequence, so don't call | |
1430 | cancel_echoing, and | |
1431 | 3) we want to leave this_command_key_count non-zero, so that | |
1432 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1433 | not echo it a second time. |
1434 | ||
1435 | If the command didn't actually create a prefix arg, | |
1436 | but is merely a frame event that is transparent to prefix args, | |
1437 | then the above doesn't apply. */ | |
1438 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1439 | { |
6c7178b9 | 1440 | current_kboard->Vlast_command = this_command; |
284f4730 JB |
1441 | cancel_echoing (); |
1442 | this_command_key_count = 0; | |
6321824f | 1443 | this_single_command_key_start = 0; |
284f4730 | 1444 | } |
86e5706b | 1445 | |
51603bd0 RS |
1446 | /* Note that the value cell will never directly contain nil |
1447 | if the symbol is a local variable. */ | |
1448 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1449 | safe_run_hooks (Qpost_command_hook); | |
1450 | ||
1451 | if (!NILP (Vdeferred_action_list)) | |
1452 | safe_run_hooks (Qdeferred_action_function); | |
1453 | ||
1454 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1455 | { | |
1456 | if (NILP (Vunread_command_events) | |
1457 | && NILP (Vexecuting_macro) | |
41365083 | 1458 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
51603bd0 RS |
1459 | safe_run_hooks (Qpost_command_idle_hook); |
1460 | } | |
1461 | ||
88ce066e | 1462 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1463 | { |
1464 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1465 | { | |
1466 | current_buffer->mark_active = Qnil; | |
1467 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1468 | } | |
1469 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1470 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1471 | } | |
ff4b06d3 KH |
1472 | |
1473 | finalize: | |
1474 | /* Install chars successfully executed in kbd macro. */ | |
1475 | ||
d8bcf58e KH |
1476 | if (!NILP (current_kboard->defining_kbd_macro) |
1477 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1478 | finalize_kbd_macro_chars (); |
1479 | ||
c5fdd383 | 1480 | #ifdef MULTI_KBOARD |
604ccd1d | 1481 | if (!was_locked) |
1e8bd3da | 1482 | any_kboard_state (); |
ff4b06d3 | 1483 | #endif |
284f4730 JB |
1484 | } |
1485 | } | |
1c9784c9 | 1486 | |
0bc3db2b RS |
1487 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1488 | ||
1489 | static Lisp_Object | |
1490 | safe_run_hooks_1 (hook) | |
1491 | Lisp_Object hook; | |
1492 | { | |
1493 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1494 | } | |
1495 | ||
1496 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1497 | ||
1498 | static Lisp_Object | |
1499 | safe_run_hooks_error (data) | |
1500 | Lisp_Object data; | |
1501 | { | |
1502 | Fset (Vinhibit_quit, Qnil); | |
1503 | } | |
1504 | ||
1c9784c9 KH |
1505 | /* If we get an error while running the hook, cause the hook variable |
1506 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1507 | to mysteriously evaporate. */ | |
0bc3db2b | 1508 | |
68f297c5 | 1509 | void |
1c9784c9 | 1510 | safe_run_hooks (hook) |
a98ea3f9 | 1511 | Lisp_Object hook; |
1c9784c9 | 1512 | { |
68553292 | 1513 | Lisp_Object value; |
1c9784c9 | 1514 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1515 | specbind (Qinhibit_quit, hook); |
1516 | ||
e702932d | 1517 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1518 | |
1519 | unbind_to (count, Qnil); | |
1520 | } | |
284f4730 JB |
1521 | \f |
1522 | /* Number of seconds between polling for input. */ | |
1523 | int polling_period; | |
1524 | ||
eb8c3be9 | 1525 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1526 | int poll_suppress_count; |
1527 | ||
36922b18 | 1528 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1529 | int polling_for_input; |
1530 | ||
36922b18 RS |
1531 | #ifdef POLL_FOR_INPUT |
1532 | ||
284f4730 JB |
1533 | /* Handle an alarm once each second and read pending input |
1534 | so as to handle a C-g if it comces in. */ | |
1535 | ||
1536 | SIGTYPE | |
91c049d4 RS |
1537 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1538 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1539 | { |
87dd9b9b RS |
1540 | /* This causes the call to start_polling at the end |
1541 | to do its job. It also arranges for a quit or error | |
1542 | from within read_avail_input to resume polling. */ | |
1543 | poll_suppress_count++; | |
9ac0d9e0 JB |
1544 | if (interrupt_input_blocked == 0 |
1545 | && !waiting_for_input) | |
1546 | read_avail_input (0); | |
87dd9b9b RS |
1547 | /* Turn on the SIGALRM handler and request another alarm. */ |
1548 | start_polling (); | |
284f4730 JB |
1549 | } |
1550 | ||
1551 | #endif | |
1552 | ||
1553 | /* Begin signals to poll for input, if they are appropriate. | |
1554 | This function is called unconditionally from various places. */ | |
1555 | ||
07a59269 | 1556 | void |
284f4730 JB |
1557 | start_polling () |
1558 | { | |
1559 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1560 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1561 | { |
1562 | poll_suppress_count--; | |
1563 | if (poll_suppress_count == 0) | |
1564 | { | |
1565 | signal (SIGALRM, input_poll_signal); | |
1566 | polling_for_input = 1; | |
1567 | alarm (polling_period); | |
1568 | } | |
1569 | } | |
1570 | #endif | |
1571 | } | |
1572 | ||
1d3195db RS |
1573 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1574 | ||
1575 | int | |
1576 | input_polling_used () | |
1577 | { | |
1578 | #ifdef POLL_FOR_INPUT | |
1579 | return read_socket_hook && !interrupt_input; | |
1580 | #else | |
1581 | return 0; | |
1582 | #endif | |
1583 | } | |
1584 | ||
284f4730 JB |
1585 | /* Turn off polling. */ |
1586 | ||
07a59269 | 1587 | void |
284f4730 JB |
1588 | stop_polling () |
1589 | { | |
1590 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1591 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1592 | { |
1593 | if (poll_suppress_count == 0) | |
1594 | { | |
1595 | polling_for_input = 0; | |
1596 | alarm (0); | |
1597 | } | |
1598 | poll_suppress_count++; | |
1599 | } | |
1600 | #endif | |
1601 | } | |
fe8aeef3 RS |
1602 | |
1603 | /* Set the value of poll_suppress_count to COUNT | |
1604 | and start or stop polling accordingly. */ | |
1605 | ||
1606 | void | |
1607 | set_poll_suppress_count (count) | |
1608 | int count; | |
1609 | { | |
1610 | #ifdef POLL_FOR_INPUT | |
1611 | if (count == 0 && poll_suppress_count != 0) | |
1612 | { | |
1613 | poll_suppress_count = 1; | |
1614 | start_polling (); | |
1615 | } | |
1616 | else if (count != 0 && poll_suppress_count == 0) | |
1617 | { | |
1618 | stop_polling (); | |
1619 | } | |
1620 | poll_suppress_count = count; | |
1621 | #endif | |
1622 | } | |
f4eef8b4 | 1623 | |
d0a57728 RS |
1624 | /* Bind polling_period to a value at least N. |
1625 | But don't decrease it. */ | |
1626 | ||
07a59269 | 1627 | void |
f4eef8b4 RS |
1628 | bind_polling_period (n) |
1629 | int n; | |
1630 | { | |
1631 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1632 | int new = polling_period; |
1633 | ||
1634 | if (n > new) | |
1635 | new = n; | |
1636 | ||
f4eef8b4 | 1637 | stop_polling (); |
d0a57728 RS |
1638 | specbind (Qpolling_period, make_number (new)); |
1639 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1640 | start_polling (); |
1641 | #endif | |
1642 | } | |
284f4730 | 1643 | \f |
6da3dd3a RS |
1644 | /* Apply the control modifier to CHARACTER. */ |
1645 | ||
faf5e407 JB |
1646 | int |
1647 | make_ctrl_char (c) | |
1648 | int c; | |
1649 | { | |
d205953b JB |
1650 | /* Save the upper bits here. */ |
1651 | int upper = c & ~0177; | |
1652 | ||
1653 | c &= 0177; | |
1654 | ||
1655 | /* Everything in the columns containing the upper-case letters | |
1656 | denotes a control character. */ | |
1657 | if (c >= 0100 && c < 0140) | |
1658 | { | |
1659 | int oc = c; | |
1660 | c &= ~0140; | |
1661 | /* Set the shift modifier for a control char | |
1662 | made from a shifted letter. But only for letters! */ | |
1663 | if (oc >= 'A' && oc <= 'Z') | |
1664 | c |= shift_modifier; | |
1665 | } | |
1666 | ||
1667 | /* The lower-case letters denote control characters too. */ | |
1668 | else if (c >= 'a' && c <= 'z') | |
1669 | c &= ~0140; | |
1670 | ||
1671 | /* Include the bits for control and shift | |
1672 | only if the basic ASCII code can't indicate them. */ | |
1673 | else if (c >= ' ') | |
1674 | c |= ctrl_modifier; | |
1675 | ||
1676 | /* Replace the high bits. */ | |
1677 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1678 | |
1679 | return c; | |
1680 | } | |
1681 | ||
1682 | ||
1683 | \f | |
284f4730 JB |
1684 | /* Input of single characters from keyboard */ |
1685 | ||
1686 | Lisp_Object print_help (); | |
1687 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1688 | static void record_char (); |
284f4730 | 1689 | |
c5fdd383 KH |
1690 | #ifdef MULTI_KBOARD |
1691 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1692 | #endif |
beecf6a1 | 1693 | |
284f4730 JB |
1694 | /* read a character from the keyboard; call the redisplay if needed */ |
1695 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1696 | -1 means do not do redisplay, but do do autosaving. | |
1697 | 1 means do both. */ | |
1698 | ||
7d6de002 RS |
1699 | /* The arguments MAPS and NMAPS are for menu prompting. |
1700 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1701 | ||
1702 | PREV_EVENT is the previous input event, or nil if we are reading | |
1703 | the first event of a key sequence. | |
1704 | ||
83d68044 | 1705 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1706 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1707 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1708 | |
1709 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1710 | |
284f4730 | 1711 | Lisp_Object |
7d6de002 | 1712 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1713 | int commandflag; |
7d6de002 RS |
1714 | int nmaps; |
1715 | Lisp_Object *maps; | |
1716 | Lisp_Object prev_event; | |
1717 | int *used_mouse_menu; | |
284f4730 | 1718 | { |
7c3bc944 | 1719 | Lisp_Object c; |
284f4730 | 1720 | int count; |
410d4de9 | 1721 | jmp_buf local_getcjmp; |
284f4730 | 1722 | jmp_buf save_jump; |
a1341f75 | 1723 | int key_already_recorded = 0; |
017c7cb6 | 1724 | Lisp_Object tem, save; |
e4fe371d | 1725 | Lisp_Object also_record; |
7c3bc944 RS |
1726 | struct gcpro gcpro1; |
1727 | ||
e4fe371d | 1728 | also_record = Qnil; |
284f4730 | 1729 | |
71918b75 RS |
1730 | before_command_key_count = this_command_key_count; |
1731 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1732 | c = Qnil; |
71918b75 | 1733 | |
7c3bc944 RS |
1734 | GCPRO1 (c); |
1735 | ||
7f07d5ca RS |
1736 | retry: |
1737 | ||
24597608 | 1738 | if (CONSP (Vunread_command_events)) |
284f4730 | 1739 | { |
24597608 RS |
1740 | c = XCONS (Vunread_command_events)->car; |
1741 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
284f4730 | 1742 | |
2479e91e RS |
1743 | /* Undo what read_char_x_menu_prompt did when it unread |
1744 | additional keys returned by Fx_popup_menu. */ | |
1745 | if (CONSP (c) | |
1746 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1747 | && NILP (XCONS (c)->cdr)) | |
1748 | c = XCONS (c)->car; | |
1749 | ||
284f4730 JB |
1750 | if (this_command_key_count == 0) |
1751 | goto reread_first; | |
1752 | else | |
1753 | goto reread; | |
1754 | } | |
1755 | ||
86e5706b RS |
1756 | if (unread_command_char != -1) |
1757 | { | |
18cd2eeb | 1758 | XSETINT (c, unread_command_char); |
86e5706b RS |
1759 | unread_command_char = -1; |
1760 | ||
1761 | if (this_command_key_count == 0) | |
1762 | goto reread_first; | |
1763 | else | |
1764 | goto reread; | |
1765 | } | |
1766 | ||
71918b75 RS |
1767 | /* If there is no function key translated before |
1768 | reset-this-command-lengths takes effect, forget about it. */ | |
1769 | before_command_restore_flag = 0; | |
1770 | ||
284f4730 JB |
1771 | if (!NILP (Vexecuting_macro)) |
1772 | { | |
fce33686 JB |
1773 | /* We set this to Qmacro; since that's not a frame, nobody will |
1774 | try to switch frames on us, and the selected window will | |
1775 | remain unchanged. | |
1776 | ||
1777 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1778 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1779 | real event came from. Normally, a switch-frame event selects |
1780 | internal_last_event_frame after each command is read, but | |
1781 | events read from a macro should never cause a new frame to be | |
1782 | selected. */ | |
4c52b668 | 1783 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 1784 | |
663258f2 JB |
1785 | /* Exit the macro if we are at the end. |
1786 | Also, some things replace the macro with t | |
1787 | to force an early exit. */ | |
1788 | if (EQ (Vexecuting_macro, Qt) | |
1789 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1790 | { |
18cd2eeb | 1791 | XSETINT (c, -1); |
7c3bc944 | 1792 | RETURN_UNGCPRO (c); |
284f4730 | 1793 | } |
df0f2ba1 | 1794 | |
284f4730 | 1795 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1796 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1797 | && (XINT (c) & 0x80)) |
bb9e9bed | 1798 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1799 | |
284f4730 JB |
1800 | executing_macro_index++; |
1801 | ||
1802 | goto from_macro; | |
1803 | } | |
1804 | ||
cd21b839 JB |
1805 | if (!NILP (unread_switch_frame)) |
1806 | { | |
1807 | c = unread_switch_frame; | |
1808 | unread_switch_frame = Qnil; | |
1809 | ||
1810 | /* This event should make it into this_command_keys, and get echoed | |
f4255cd1 JB |
1811 | again, so we go to reread_first, rather than reread. */ |
1812 | goto reread_first; | |
cd21b839 JB |
1813 | } |
1814 | ||
6e4e64a8 RS |
1815 | if (commandflag >= 0) |
1816 | { | |
1817 | if (input_pending | |
1818 | || detect_input_pending_run_timers (0)) | |
1819 | swallow_events (0); | |
1820 | ||
1821 | if (!input_pending) | |
1822 | redisplay (); | |
1823 | } | |
e9bf89a0 | 1824 | |
410d4de9 RS |
1825 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
1826 | if (echo_area_glyphs && *echo_area_glyphs | |
1fc93d49 | 1827 | && echo_area_glyphs != current_kboard->echobuf |
0c04a67e | 1828 | && ok_to_echo_at_next_pause != echo_area_glyphs) |
410d4de9 RS |
1829 | cancel_echoing (); |
1830 | else | |
1831 | /* If already echoing, continue. */ | |
1832 | echo_dash (); | |
284f4730 | 1833 | |
410d4de9 RS |
1834 | /* Try reading a character via menu prompting in the minibuf. |
1835 | Try this before the sit-for, because the sit-for | |
1836 | would do the wrong thing if we are supposed to do | |
1837 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1838 | after a mouse event so don't try a minibuf menu. */ | |
1839 | c = Qnil; | |
1840 | if (nmaps > 0 && INTERACTIVE | |
1841 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
1842 | /* Don't bring up a menu if we already have another event. */ | |
1843 | && NILP (Vunread_command_events) | |
1844 | && unread_command_char < 0 | |
4ec4ed6a | 1845 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
1846 | { |
1847 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
1848 | if (! NILP (c)) | |
1849 | { | |
1850 | key_already_recorded = 1; | |
1851 | goto non_reread_1; | |
1852 | } | |
1853 | } | |
284f4730 | 1854 | |
410d4de9 RS |
1855 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
1856 | We will do that below, temporarily for short sections of code, | |
1857 | when appropriate. local_getcjmp must be in effect | |
1858 | around any call to sit_for or kbd_buffer_get_event; | |
1859 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 1860 | |
410d4de9 | 1861 | if (_setjmp (local_getcjmp)) |
284f4730 | 1862 | { |
18cd2eeb | 1863 | XSETINT (c, quit_char); |
4c52b668 KH |
1864 | XSETFRAME (internal_last_event_frame, selected_frame); |
1865 | Vlast_event_frame = internal_last_event_frame; | |
04904c29 RS |
1866 | /* If we report the quit char as an event, |
1867 | don't do so more than once. */ | |
1868 | if (!NILP (Vinhibit_quit)) | |
1869 | Vquit_flag = Qnil; | |
284f4730 | 1870 | |
c5fdd383 | 1871 | #ifdef MULTI_KBOARD |
df0f2ba1 | 1872 | { |
c5fdd383 KH |
1873 | KBOARD *kb = FRAME_KBOARD (selected_frame); |
1874 | if (kb != current_kboard) | |
df0f2ba1 | 1875 | { |
c5fdd383 | 1876 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
1877 | /* We shouldn't get here if we were in single-kboard mode! */ |
1878 | if (single_kboard) | |
df0f2ba1 KH |
1879 | abort (); |
1880 | while (CONSP (*tailp)) | |
1881 | tailp = &XCONS (*tailp)->cdr; | |
1882 | if (!NILP (*tailp)) | |
1883 | abort (); | |
1884 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
1885 | kb->kbd_queue_has_data = 1; |
1886 | current_kboard = kb; | |
ef6661f7 RS |
1887 | /* This is going to exit from read_char |
1888 | so we had better get rid of this frame's stuff. */ | |
1889 | UNGCPRO; | |
c5fdd383 | 1890 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
1891 | } |
1892 | } | |
1893 | #endif | |
284f4730 JB |
1894 | goto non_reread; |
1895 | } | |
1896 | ||
d9d4c147 KH |
1897 | timer_start_idle (); |
1898 | ||
284f4730 JB |
1899 | /* If in middle of key sequence and minibuffer not active, |
1900 | start echoing if enough time elapses. */ | |
410d4de9 | 1901 | |
c5fdd383 | 1902 | if (minibuf_level == 0 && !current_kboard->immediate_echo |
6c6083a9 | 1903 | && this_command_key_count > 0 |
27203ead | 1904 | && ! noninteractive |
284f4730 | 1905 | && echo_keystrokes > 0 |
1fc93d49 | 1906 | && (echo_area_glyphs == 0 || *echo_area_glyphs == 0 |
0c04a67e | 1907 | || ok_to_echo_at_next_pause == echo_area_glyphs)) |
284f4730 JB |
1908 | { |
1909 | Lisp_Object tem0; | |
1910 | ||
7d6de002 RS |
1911 | /* After a mouse event, start echoing right away. |
1912 | This is because we are probably about to display a menu, | |
1913 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 1914 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 1915 | echo_now (); |
7d6de002 RS |
1916 | else |
1917 | { | |
410d4de9 RS |
1918 | save_getcjmp (save_jump); |
1919 | restore_getcjmp (local_getcjmp); | |
41365083 | 1920 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 1921 | restore_getcjmp (save_jump); |
303b5b3f RS |
1922 | if (EQ (tem0, Qt) |
1923 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 1924 | echo_now (); |
7d6de002 | 1925 | } |
284f4730 JB |
1926 | } |
1927 | ||
410d4de9 | 1928 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
1929 | |
1930 | if (commandflag != 0 | |
1931 | && auto_save_interval > 0 | |
c43b1734 | 1932 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 1933 | && !detect_input_pending_run_timers (0)) |
284f4730 | 1934 | { |
284f4730 | 1935 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
1936 | /* Hooks can actually change some buffers in auto save. */ |
1937 | redisplay (); | |
284f4730 JB |
1938 | } |
1939 | ||
8150596a | 1940 | /* Try reading using an X menu. |
24597608 RS |
1941 | This is never confused with reading using the minibuf |
1942 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
1943 | does not pass on any keymaps. */ | |
410d4de9 | 1944 | |
24597608 | 1945 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
1946 | && !NILP (prev_event) |
1947 | && EVENT_HAS_PARAMETERS (prev_event) | |
1948 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
24597608 RS |
1949 | /* Don't bring up a menu if we already have another event. */ |
1950 | && NILP (Vunread_command_events) | |
b8556aee | 1951 | && unread_command_char < 0) |
8eb4d8ef RS |
1952 | { |
1953 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
1954 | ||
1955 | /* Now that we have read an event, Emacs is not idle. */ | |
1956 | timer_stop_idle (); | |
1957 | ||
7c3bc944 | 1958 | RETURN_UNGCPRO (c); |
8eb4d8ef | 1959 | } |
7d6de002 | 1960 | |
410d4de9 RS |
1961 | /* Maybe autosave and/or garbage collect due to idleness. */ |
1962 | ||
26c1639e | 1963 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
1964 | { |
1965 | int delay_level, buffer_size; | |
1966 | ||
410d4de9 RS |
1967 | /* Slow down auto saves logarithmically in size of current buffer, |
1968 | and garbage collect while we're at it. */ | |
7d6de002 RS |
1969 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
1970 | last_non_minibuf_size = Z - BEG; | |
1971 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
1972 | delay_level = 0; | |
1973 | while (buffer_size > 64) | |
1974 | delay_level++, buffer_size -= buffer_size >> 2; | |
1975 | if (delay_level < 4) delay_level = 4; | |
1976 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
1977 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
1978 | ||
1979 | /* Auto save if enough time goes by without input. */ | |
1980 | if (commandflag != 0 | |
c43b1734 | 1981 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 1982 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
1983 | && XINT (Vauto_save_timeout) > 0) |
1984 | { | |
1985 | Lisp_Object tem0; | |
410d4de9 RS |
1986 | |
1987 | save_getcjmp (save_jump); | |
1988 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 1989 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 1990 | 0, 1, 1, 0); |
410d4de9 RS |
1991 | restore_getcjmp (save_jump); |
1992 | ||
303b5b3f RS |
1993 | if (EQ (tem0, Qt) |
1994 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 1995 | { |
7d6de002 | 1996 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
1997 | |
1998 | /* If we have auto-saved and there is still no input | |
1999 | available, garbage collect if there has been enough | |
2000 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2001 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2002 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2003 | Fgarbage_collect (); |
410d4de9 | 2004 | |
ef8fd672 | 2005 | redisplay (); |
7d6de002 RS |
2006 | } |
2007 | } | |
2008 | } | |
284f4730 | 2009 | |
303b5b3f RS |
2010 | /* If this has become non-nil here, it has been set by a timer |
2011 | or sentinel or filter. */ | |
2012 | if (CONSP (Vunread_command_events)) | |
2013 | { | |
2014 | c = XCONS (Vunread_command_events)->car; | |
2015 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2016 | } | |
2017 | ||
410d4de9 RS |
2018 | /* Read something from current KBOARD's side queue, if possible. */ |
2019 | ||
beecf6a1 | 2020 | if (NILP (c)) |
1e12dd87 | 2021 | { |
c5fdd383 | 2022 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2023 | { |
c5fdd383 | 2024 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2025 | abort (); |
c5fdd383 KH |
2026 | c = XCONS (current_kboard->kbd_queue)->car; |
2027 | current_kboard->kbd_queue | |
2028 | = XCONS (current_kboard->kbd_queue)->cdr; | |
2029 | if (NILP (current_kboard->kbd_queue)) | |
2030 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2031 | input_pending = readable_events (0); |
4c52b668 KH |
2032 | if (EVENT_HAS_PARAMETERS (c) |
2033 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
2034 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
2035 | Vlast_event_frame = internal_last_event_frame; | |
beecf6a1 | 2036 | } |
1e8bd3da RS |
2037 | } |
2038 | ||
c5fdd383 | 2039 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2040 | /* If current_kboard's side queue is empty check the other kboards. |
2041 | If one of them has data that we have not yet seen here, | |
2042 | switch to it and process the data waiting for it. | |
2043 | ||
2044 | Note: if the events queued up for another kboard | |
2045 | have already been seen here, and therefore are not a complete command, | |
2046 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2047 | That's to avoid an infinite loop switching between kboards here. */ | |
2048 | if (NILP (c) && !single_kboard) | |
2049 | { | |
2050 | KBOARD *kb; | |
2051 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2052 | if (kb->kbd_queue_has_data) | |
2053 | { | |
2054 | current_kboard = kb; | |
ef6661f7 RS |
2055 | /* This is going to exit from read_char |
2056 | so we had better get rid of this frame's stuff. */ | |
2057 | UNGCPRO; | |
1e8bd3da RS |
2058 | longjmp (wrong_kboard_jmpbuf, 1); |
2059 | } | |
2060 | } | |
df0f2ba1 KH |
2061 | #endif |
2062 | ||
410d4de9 RS |
2063 | wrong_kboard: |
2064 | ||
2065 | stop_polling (); | |
2066 | ||
1e8bd3da RS |
2067 | /* Finally, we read from the main queue, |
2068 | and if that gives us something we can't use yet, we put it on the | |
2069 | appropriate side queue and try again. */ | |
410d4de9 | 2070 | |
1e8bd3da RS |
2071 | if (NILP (c)) |
2072 | { | |
2073 | KBOARD *kb; | |
2074 | ||
1e8bd3da | 2075 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2076 | save_getcjmp (save_jump); |
2077 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2078 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2079 | restore_getcjmp (save_jump); |
2080 | ||
c5fdd383 | 2081 | #ifdef MULTI_KBOARD |
410d4de9 | 2082 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2083 | { |
2084 | Lisp_Object *tailp = &kb->kbd_queue; | |
2085 | while (CONSP (*tailp)) | |
2086 | tailp = &XCONS (*tailp)->cdr; | |
2087 | if (!NILP (*tailp)) | |
2088 | abort (); | |
2089 | *tailp = Fcons (c, Qnil); | |
2090 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2091 | c = Qnil; |
1e8bd3da RS |
2092 | if (single_kboard) |
2093 | goto wrong_kboard; | |
2094 | current_kboard = kb; | |
ef6661f7 RS |
2095 | /* This is going to exit from read_char |
2096 | so we had better get rid of this frame's stuff. */ | |
2097 | UNGCPRO; | |
1e8bd3da | 2098 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2099 | } |
1e8bd3da | 2100 | #endif |
beecf6a1 | 2101 | } |
1e8bd3da | 2102 | |
284f4730 | 2103 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2104 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2105 | Fkill_emacs (make_number (1)); |
2106 | ||
8c18cbfb | 2107 | if (INTEGERP (c)) |
80645119 JB |
2108 | { |
2109 | /* Add in any extra modifiers, where appropriate. */ | |
2110 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2111 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2112 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2113 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2114 | |
2115 | /* Transfer any other modifier bits directly from | |
2116 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2117 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2118 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2119 | } |
9fa4395d | 2120 | |
284f4730 JB |
2121 | non_reread: |
2122 | ||
2fb9049e | 2123 | timer_stop_idle (); |
d9d4c147 | 2124 | |
284f4730 JB |
2125 | start_polling (); |
2126 | ||
410d4de9 RS |
2127 | if (NILP (c)) |
2128 | { | |
2129 | if (commandflag >= 0 | |
4ec4ed6a | 2130 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2131 | redisplay (); |
2132 | ||
2133 | goto wrong_kboard; | |
2134 | } | |
2135 | ||
2136 | non_reread_1: | |
2137 | ||
dfd11da7 | 2138 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2139 | so don't show them to the user. |
2140 | Also, don't record a key if we already did. */ | |
2141 | if (BUFFERP (c) || key_already_recorded) | |
2142 | RETURN_UNGCPRO (c); | |
a1341f75 | 2143 | |
7f07d5ca RS |
2144 | /* Process special events within read_char |
2145 | and loop around to read another event. */ | |
017c7cb6 RS |
2146 | save = Vquit_flag; |
2147 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2148 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2149 | c, 0, 0), 1); | |
017c7cb6 | 2150 | Vquit_flag = save; |
7f07d5ca RS |
2151 | |
2152 | if (!NILP (tem)) | |
2153 | { | |
ba8dfba8 RS |
2154 | int was_locked = single_kboard; |
2155 | ||
7f07d5ca | 2156 | last_input_char = c; |
158f7532 | 2157 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2158 | |
2159 | /* Resume allowing input from any kboard, if that was true before. */ | |
2160 | if (!was_locked) | |
2161 | any_kboard_state (); | |
2162 | ||
7f07d5ca RS |
2163 | goto retry; |
2164 | } | |
2165 | ||
dfd11da7 | 2166 | /* Wipe the echo area. */ |
cdb9d665 RS |
2167 | if (echo_area_glyphs) |
2168 | safe_run_hooks (Qecho_area_clear_hook); | |
dfd11da7 | 2169 | echo_area_glyphs = 0; |
284f4730 JB |
2170 | |
2171 | /* Handle things that only apply to characters. */ | |
8c18cbfb | 2172 | if (INTEGERP (c)) |
284f4730 JB |
2173 | { |
2174 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2175 | if (XINT (c) == -1) |
7c3bc944 | 2176 | RETURN_UNGCPRO (c); |
284f4730 | 2177 | |
8c18cbfb | 2178 | if (STRINGP (Vkeyboard_translate_table) |
845fe94e | 2179 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) |
f4255cd1 | 2180 | XSETINT (c, XSTRING (Vkeyboard_translate_table)->data[XFASTINT (c)]); |
f9414d62 | 2181 | else if ((VECTORP (Vkeyboard_translate_table) |
845fe94e RS |
2182 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) |
2183 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2184 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2185 | { |
2186 | Lisp_Object d; | |
2187 | d = Faref (Vkeyboard_translate_table, c); | |
2188 | /* nil in keyboard-translate-table means no translation. */ | |
2189 | if (!NILP (d)) | |
2190 | c = d; | |
2191 | } | |
284f4730 JB |
2192 | } |
2193 | ||
e4fe371d RS |
2194 | /* If this event is a mouse click in the menu bar, |
2195 | return just menu-bar for now. Modify the mouse click event | |
2196 | so we won't do this twice, then queue it up. */ | |
2197 | if (EVENT_HAS_PARAMETERS (c) | |
2198 | && CONSP (XCONS (c)->cdr) | |
2199 | && CONSP (EVENT_START (c)) | |
2200 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2201 | { |
e4fe371d | 2202 | Lisp_Object posn; |
284f4730 | 2203 | |
e4fe371d RS |
2204 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2205 | /* Handle menu-bar events: | |
2206 | insert the dummy prefix event `menu-bar'. */ | |
2207 | if (EQ (posn, Qmenu_bar)) | |
2208 | { | |
2209 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2210 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2211 | |
e4fe371d RS |
2212 | also_record = c; |
2213 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2214 | c = posn; | |
284f4730 | 2215 | } |
284f4730 JB |
2216 | } |
2217 | ||
e4fe371d RS |
2218 | record_char (c); |
2219 | if (! NILP (also_record)) | |
2220 | record_char (also_record); | |
51172b6d | 2221 | |
284f4730 JB |
2222 | from_macro: |
2223 | reread_first: | |
7c3bc944 | 2224 | |
71918b75 RS |
2225 | before_command_key_count = this_command_key_count; |
2226 | before_command_echo_length = echo_length (); | |
284f4730 | 2227 | |
b8556aee | 2228 | /* Don't echo mouse motion events. */ |
8ea231fc RS |
2229 | if (echo_keystrokes |
2230 | && ! (EVENT_HAS_PARAMETERS (c) | |
2231 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
e4fe371d RS |
2232 | { |
2233 | echo_char (c); | |
2234 | if (! NILP (also_record)) | |
2235 | echo_char (also_record); | |
1fc93d49 RS |
2236 | /* Once we reread a character, echoing can happen |
2237 | the next time we pause to read a new one. */ | |
0c04a67e | 2238 | ok_to_echo_at_next_pause = echo_area_glyphs; |
e4fe371d | 2239 | } |
b8556aee | 2240 | |
db8c1663 | 2241 | /* Record this character as part of the current key. */ |
b8556aee | 2242 | add_command_key (c); |
e4fe371d RS |
2243 | if (! NILP (also_record)) |
2244 | add_command_key (also_record); | |
284f4730 JB |
2245 | |
2246 | /* Re-reading in the middle of a command */ | |
2247 | reread: | |
2248 | last_input_char = c; | |
c43b1734 | 2249 | num_input_events++; |
284f4730 JB |
2250 | |
2251 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2252 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2253 | { |
2254 | Lisp_Object tem0; | |
2255 | count = specpdl_ptr - specpdl; | |
2256 | ||
2257 | record_unwind_protect (Fset_window_configuration, | |
2258 | Fcurrent_window_configuration (Qnil)); | |
2259 | ||
2260 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2261 | if (STRINGP (tem0)) |
284f4730 JB |
2262 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2263 | ||
2264 | cancel_echoing (); | |
3cb81011 KH |
2265 | do |
2266 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2267 | while (BUFFERP (c)); |
ff11dfa1 | 2268 | /* Remove the help from the frame */ |
284f4730 | 2269 | unbind_to (count, Qnil); |
410d4de9 | 2270 | |
284f4730 JB |
2271 | redisplay (); |
2272 | if (EQ (c, make_number (040))) | |
2273 | { | |
2274 | cancel_echoing (); | |
3cb81011 KH |
2275 | do |
2276 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2277 | while (BUFFERP (c)); |
284f4730 JB |
2278 | } |
2279 | } | |
2280 | ||
7c3bc944 | 2281 | RETURN_UNGCPRO (c); |
284f4730 JB |
2282 | } |
2283 | ||
8eb4d8ef RS |
2284 | /* Record a key that came from a mouse menu. |
2285 | Record it for echoing, for this-command-keys, and so on. */ | |
2286 | ||
2287 | static void | |
2288 | record_menu_key (c) | |
2289 | Lisp_Object c; | |
2290 | { | |
2291 | /* Wipe the echo area. */ | |
2292 | echo_area_glyphs = 0; | |
2293 | ||
2294 | record_char (c); | |
2295 | ||
2296 | before_command_key_count = this_command_key_count; | |
2297 | before_command_echo_length = echo_length (); | |
2298 | ||
2299 | /* Don't echo mouse motion events. */ | |
2300 | if (echo_keystrokes) | |
2301 | { | |
2302 | echo_char (c); | |
2303 | ||
2304 | /* Once we reread a character, echoing can happen | |
2305 | the next time we pause to read a new one. */ | |
2306 | ok_to_echo_at_next_pause = 0; | |
2307 | } | |
2308 | ||
2309 | /* Record this character as part of the current key. */ | |
2310 | add_command_key (c); | |
2311 | ||
2312 | /* Re-reading in the middle of a command */ | |
2313 | last_input_char = c; | |
c43b1734 | 2314 | num_input_events++; |
8eb4d8ef RS |
2315 | } |
2316 | ||
ecb7cb34 KH |
2317 | /* Return 1 if should recognize C as "the help character". */ |
2318 | ||
2319 | int | |
2320 | help_char_p (c) | |
2321 | Lisp_Object c; | |
2322 | { | |
2323 | Lisp_Object tail; | |
2324 | ||
2325 | if (EQ (c, Vhelp_char)) | |
2326 | return 1; | |
2327 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2328 | if (EQ (c, XCONS (tail)->car)) | |
2329 | return 1; | |
2330 | return 0; | |
2331 | } | |
2332 | ||
e4fe371d RS |
2333 | /* Record the input event C in various ways. */ |
2334 | ||
2335 | static void | |
2336 | record_char (c) | |
2337 | Lisp_Object c; | |
2338 | { | |
2339 | total_keys++; | |
2340 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2341 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2342 | recent_keys_index = 0; | |
2343 | ||
2344 | /* Write c to the dribble file. If c is a lispy event, write | |
2345 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2346 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2347 | if (dribble) | |
2348 | { | |
2349 | if (INTEGERP (c)) | |
2350 | { | |
2351 | if (XUINT (c) < 0x100) | |
2352 | putc (XINT (c), dribble); | |
2353 | else | |
6de34814 | 2354 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2355 | } |
2356 | else | |
2357 | { | |
2358 | Lisp_Object dribblee; | |
2359 | ||
2360 | /* If it's a structured event, take the event header. */ | |
2361 | dribblee = EVENT_HEAD (c); | |
2362 | ||
2363 | if (SYMBOLP (dribblee)) | |
2364 | { | |
2365 | putc ('<', dribble); | |
2366 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
2367 | XSYMBOL (dribblee)->name->size, | |
2368 | dribble); | |
2369 | putc ('>', dribble); | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | fflush (dribble); | |
2374 | } | |
2375 | ||
2376 | store_kbd_macro_char (c); | |
2377 | ||
c43b1734 | 2378 | num_nonmacro_input_events++; |
e4fe371d RS |
2379 | } |
2380 | ||
284f4730 JB |
2381 | Lisp_Object |
2382 | print_help (object) | |
2383 | Lisp_Object object; | |
2384 | { | |
622de3e9 | 2385 | struct buffer *old = current_buffer; |
284f4730 | 2386 | Fprinc (object, Qnil); |
622de3e9 KH |
2387 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2388 | call0 (intern ("help-mode")); | |
2389 | set_buffer_internal (old); | |
284f4730 JB |
2390 | return Qnil; |
2391 | } | |
2392 | ||
2393 | /* Copy out or in the info on where C-g should throw to. | |
2394 | This is used when running Lisp code from within get_char, | |
2395 | in case get_char is called recursively. | |
2396 | See read_process_output. */ | |
2397 | ||
2398 | save_getcjmp (temp) | |
2399 | jmp_buf temp; | |
2400 | { | |
2401 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2402 | } | |
2403 | ||
2404 | restore_getcjmp (temp) | |
2405 | jmp_buf temp; | |
2406 | { | |
2407 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2408 | } | |
284f4730 | 2409 | \f |
2eb6bfbe RM |
2410 | #ifdef HAVE_MOUSE |
2411 | ||
284f4730 JB |
2412 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2413 | of this function. */ | |
a9d77f1f | 2414 | |
284f4730 JB |
2415 | static Lisp_Object |
2416 | tracking_off (old_value) | |
2417 | Lisp_Object old_value; | |
2418 | { | |
71edead1 RS |
2419 | do_mouse_tracking = old_value; |
2420 | if (NILP (old_value)) | |
284f4730 | 2421 | { |
284f4730 JB |
2422 | /* Redisplay may have been preempted because there was input |
2423 | available, and it assumes it will be called again after the | |
2424 | input has been processed. If the only input available was | |
2425 | the sort that we have just disabled, then we need to call | |
2426 | redisplay. */ | |
d9d4c147 | 2427 | if (!readable_events (1)) |
284f4730 JB |
2428 | { |
2429 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2430 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2431 | } |
2432 | } | |
2433 | } | |
2434 | ||
2435 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2436 | "Evaluate BODY with mouse movement events enabled.\n\ |
2437 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2438 | you can read with `read-event'.\n\ | |
2439 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2440 | (args) |
2441 | Lisp_Object args; | |
2442 | { | |
2443 | int count = specpdl_ptr - specpdl; | |
2444 | Lisp_Object val; | |
2445 | ||
a9d77f1f | 2446 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2447 | |
f3253854 | 2448 | do_mouse_tracking = Qt; |
df0f2ba1 | 2449 | |
284f4730 JB |
2450 | val = Fprogn (args); |
2451 | return unbind_to (count, val); | |
2452 | } | |
2eb6bfbe | 2453 | |
f3253854 KH |
2454 | /* If mouse has moved on some frame, return one of those frames. |
2455 | Return 0 otherwise. */ | |
2456 | ||
2457 | static FRAME_PTR | |
2458 | some_mouse_moved () | |
2459 | { | |
2460 | Lisp_Object tail, frame; | |
2461 | ||
2462 | FOR_EACH_FRAME (tail, frame) | |
2463 | { | |
2464 | if (XFRAME (frame)->mouse_moved) | |
2465 | return XFRAME (frame); | |
2466 | } | |
2467 | ||
2468 | return 0; | |
2469 | } | |
2470 | ||
2eb6bfbe | 2471 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2472 | \f |
2473 | /* Low level keyboard/mouse input. | |
2474 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2475 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2476 | |
2477 | /* Return true iff there are any events in the queue that read-char | |
2478 | would return. If this returns false, a read-char would block. */ | |
2479 | static int | |
d9d4c147 KH |
2480 | readable_events (do_timers_now) |
2481 | int do_timers_now; | |
a612e298 | 2482 | { |
4ec4ed6a RS |
2483 | if (do_timers_now) |
2484 | timer_check (do_timers_now); | |
2485 | ||
beecf6a1 KH |
2486 | if (kbd_fetch_ptr != kbd_store_ptr) |
2487 | return 1; | |
2488 | #ifdef HAVE_MOUSE | |
f3253854 | 2489 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2490 | return 1; |
2491 | #endif | |
1e8bd3da | 2492 | if (single_kboard) |
4c52b668 | 2493 | { |
c5fdd383 | 2494 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2495 | return 1; |
2496 | } | |
2497 | else | |
2498 | { | |
c5fdd383 KH |
2499 | KBOARD *kb; |
2500 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2501 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2502 | return 1; |
2503 | } | |
beecf6a1 | 2504 | return 0; |
a612e298 RS |
2505 | } |
2506 | ||
2507 | /* Set this for debugging, to have a way to get out */ | |
2508 | int stop_character; | |
284f4730 | 2509 | |
c5fdd383 KH |
2510 | #ifdef MULTI_KBOARD |
2511 | static KBOARD * | |
2512 | event_to_kboard (event) | |
5798cf15 KH |
2513 | struct input_event *event; |
2514 | { | |
2515 | Lisp_Object frame; | |
2516 | frame = event->frame_or_window; | |
2517 | if (CONSP (frame)) | |
2518 | frame = XCONS (frame)->car; | |
2519 | else if (WINDOWP (frame)) | |
2520 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2521 | ||
2522 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2523 | For now, just ignore the problem. |
2524 | Also ignore dead frames here. */ | |
2525 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2526 | return 0; |
2527 | else | |
c5fdd383 | 2528 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2529 | } |
2530 | #endif | |
2531 | ||
284f4730 JB |
2532 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2533 | ||
2534 | void | |
2535 | kbd_buffer_store_event (event) | |
2536 | register struct input_event *event; | |
2537 | { | |
2538 | if (event->kind == no_event) | |
2539 | abort (); | |
2540 | ||
2541 | if (event->kind == ascii_keystroke) | |
2542 | { | |
e9bf89a0 | 2543 | register int c = event->code & 0377; |
284f4730 | 2544 | |
faf5e407 JB |
2545 | if (event->modifiers & ctrl_modifier) |
2546 | c = make_ctrl_char (c); | |
2547 | ||
9fd7d808 RS |
2548 | c |= (event->modifiers |
2549 | & (meta_modifier | alt_modifier | |
2550 | | hyper_modifier | super_modifier)); | |
2551 | ||
86e5706b | 2552 | if (c == quit_char) |
284f4730 | 2553 | { |
3e51c7b7 | 2554 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2555 | #ifdef MULTI_KBOARD |
2556 | KBOARD *kb; | |
5798cf15 KH |
2557 | struct input_event *sp; |
2558 | ||
1e8bd3da | 2559 | if (single_kboard |
c5fdd383 KH |
2560 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2561 | kb != current_kboard)) | |
5798cf15 | 2562 | { |
c5fdd383 | 2563 | kb->kbd_queue |
5798cf15 KH |
2564 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2565 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2566 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2567 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2568 | { | |
2569 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2570 | sp = kbd_buffer; | |
2571 | ||
c5fdd383 | 2572 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2573 | { |
2574 | sp->kind = no_event; | |
2575 | sp->frame_or_window = Qnil; | |
2576 | } | |
2577 | } | |
2578 | return; | |
2579 | } | |
2580 | #endif | |
3e51c7b7 | 2581 | |
284f4730 | 2582 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2583 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2584 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2585 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2586 | { |
9b8eb840 | 2587 | Lisp_Object focus; |
4bb994d1 | 2588 | |
9b8eb840 | 2589 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2590 | if (NILP (focus)) |
beecf6a1 | 2591 | focus = event->frame_or_window; |
4c52b668 KH |
2592 | internal_last_event_frame = focus; |
2593 | Vlast_event_frame = focus; | |
4bb994d1 | 2594 | } |
3e51c7b7 | 2595 | |
ffd56f97 | 2596 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2597 | interrupt_signal (); |
2598 | return; | |
2599 | } | |
2600 | ||
2601 | if (c && c == stop_character) | |
2602 | { | |
2603 | sys_suspend (); | |
2604 | return; | |
2605 | } | |
284f4730 | 2606 | } |
3fe8e9a2 RS |
2607 | /* Don't insert two buffer_switch_event's in a row. |
2608 | Just ignore the second one. */ | |
2609 | else if (event->kind == buffer_switch_event | |
2610 | && kbd_fetch_ptr != kbd_store_ptr | |
2611 | && kbd_store_ptr->kind == buffer_switch_event) | |
2612 | return; | |
284f4730 | 2613 | |
beecf6a1 KH |
2614 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2615 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2616 | |
2617 | /* Don't let the very last slot in the buffer become full, | |
2618 | since that would make the two pointers equal, | |
2619 | and that is indistinguishable from an empty buffer. | |
2620 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2621 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2622 | { |
beecf6a1 | 2623 | volatile struct input_event *sp = kbd_store_ptr; |
612b78ef | 2624 | sp->kind = event->kind; |
27203ead RS |
2625 | if (event->kind == selection_request_event) |
2626 | { | |
2627 | /* We must not use the ordinary copying code for this case, | |
2628 | since `part' is an enum and copying it might not copy enough | |
2629 | in this case. */ | |
612b78ef | 2630 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2631 | } |
2632 | else | |
2633 | { | |
612b78ef KH |
2634 | sp->code = event->code; |
2635 | sp->part = event->part; | |
2636 | sp->frame_or_window = event->frame_or_window; | |
2637 | sp->modifiers = event->modifiers; | |
2638 | sp->x = event->x; | |
2639 | sp->y = event->y; | |
2640 | sp->timestamp = event->timestamp; | |
27203ead | 2641 | } |
beecf6a1 KH |
2642 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2643 | - kbd_buffer] | |
7b4aedb9 | 2644 | = event->frame_or_window); |
284f4730 | 2645 | |
beecf6a1 | 2646 | kbd_store_ptr++; |
284f4730 JB |
2647 | } |
2648 | } | |
a612e298 | 2649 | \f |
07de30b9 GV |
2650 | /* Discard any mouse events in the event buffer by setting them to |
2651 | no_event. */ | |
2652 | void | |
2653 | discard_mouse_events () | |
2654 | { | |
2655 | struct input_event *sp; | |
2656 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
2657 | { | |
2658 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2659 | sp = kbd_buffer; | |
2660 | ||
2661 | if (sp->kind == mouse_click | |
2662 | #ifdef WINDOWSNT | |
2663 | || sp->kind == w32_scroll_bar_click | |
2664 | #endif | |
2665 | || sp->kind == scroll_bar_click) | |
2666 | { | |
2667 | sp->kind = no_event; | |
2668 | } | |
2669 | } | |
2670 | } | |
2671 | \f | |
a612e298 RS |
2672 | /* Read one event from the event buffer, waiting if necessary. |
2673 | The value is a Lisp object representing the event. | |
2674 | The value is nil for an event that should be ignored, | |
2675 | or that was handled here. | |
2676 | We always read and discard one event. */ | |
284f4730 JB |
2677 | |
2678 | static Lisp_Object | |
83d68044 | 2679 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2680 | KBOARD **kbp; |
83d68044 | 2681 | int *used_mouse_menu; |
284f4730 JB |
2682 | { |
2683 | register int c; | |
2684 | Lisp_Object obj; | |
c04cbc3b | 2685 | EMACS_TIME next_timer_delay; |
284f4730 JB |
2686 | |
2687 | if (noninteractive) | |
2688 | { | |
2689 | c = getchar (); | |
18cd2eeb | 2690 | XSETINT (obj, c); |
f5b56972 | 2691 | *kbp = current_kboard; |
284f4730 JB |
2692 | return obj; |
2693 | } | |
2694 | ||
2695 | /* Wait until there is input available. */ | |
2696 | for (;;) | |
2697 | { | |
beecf6a1 KH |
2698 | if (kbd_fetch_ptr != kbd_store_ptr) |
2699 | break; | |
2700 | #ifdef HAVE_MOUSE | |
f3253854 | 2701 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2702 | break; |
beecf6a1 | 2703 | #endif |
284f4730 JB |
2704 | |
2705 | /* If the quit flag is set, then read_char will return | |
2706 | quit_char, so that counts as "available input." */ | |
2707 | if (!NILP (Vquit_flag)) | |
2708 | quit_throw_to_read_char (); | |
2709 | ||
2710 | /* One way or another, wait until input is available; then, if | |
2711 | interrupt handlers have not read it, read it now. */ | |
2712 | ||
2713 | #ifdef OLDVMS | |
2714 | wait_for_kbd_input (); | |
2715 | #else | |
2716 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
2717 | #ifdef SIGIO | |
2718 | gobble_input (0); | |
2719 | #endif /* SIGIO */ | |
beecf6a1 KH |
2720 | if (kbd_fetch_ptr != kbd_store_ptr) |
2721 | break; | |
2722 | #ifdef HAVE_MOUSE | |
f3253854 | 2723 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2724 | break; |
2725 | #endif | |
2726 | { | |
2727 | Lisp_Object minus_one; | |
f76475ad | 2728 | |
beecf6a1 | 2729 | XSETINT (minus_one, -1); |
d9d4c147 | 2730 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 2731 | |
beecf6a1 KH |
2732 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
2733 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
2734 | read_avail_input (1); | |
2735 | } | |
284f4730 JB |
2736 | #endif /* not VMS */ |
2737 | } | |
2738 | ||
303b5b3f RS |
2739 | if (CONSP (Vunread_command_events)) |
2740 | { | |
2741 | Lisp_Object first; | |
2742 | first = XCONS (Vunread_command_events)->car; | |
2743 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2744 | *kbp = current_kboard; | |
2745 | return first; | |
2746 | } | |
2747 | ||
284f4730 JB |
2748 | /* At this point, we know that there is a readable event available |
2749 | somewhere. If the event queue is empty, then there must be a | |
2750 | mouse movement enabled and available. */ | |
beecf6a1 | 2751 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 2752 | { |
cd21b839 | 2753 | struct input_event *event; |
3e51c7b7 | 2754 | |
beecf6a1 KH |
2755 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2756 | ? kbd_fetch_ptr | |
2757 | : kbd_buffer); | |
3e51c7b7 | 2758 | |
cd21b839 | 2759 | last_event_timestamp = event->timestamp; |
cd21b839 | 2760 | |
c5fdd383 KH |
2761 | #ifdef MULTI_KBOARD |
2762 | *kbp = event_to_kboard (event); | |
2763 | if (*kbp == 0) | |
2764 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 2765 | #else |
c5fdd383 | 2766 | *kbp = &the_only_kboard; |
5798cf15 | 2767 | #endif |
beecf6a1 | 2768 | |
4bb994d1 JB |
2769 | obj = Qnil; |
2770 | ||
48e416d4 | 2771 | /* These two kinds of events get special handling |
a612e298 RS |
2772 | and don't actually appear to the command loop. |
2773 | We return nil for them. */ | |
48e416d4 RS |
2774 | if (event->kind == selection_request_event) |
2775 | { | |
598a9fa7 | 2776 | #ifdef HAVE_X11 |
1e8bd3da RS |
2777 | struct input_event copy; |
2778 | ||
4581e928 RS |
2779 | /* Remove it from the buffer before processing it, |
2780 | since otherwise swallow_events will see it | |
2781 | and process it again. */ | |
1e8bd3da | 2782 | copy = *event; |
beecf6a1 | 2783 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 2784 | input_pending = readable_events (0); |
4581e928 | 2785 | x_handle_selection_request (©); |
598a9fa7 JB |
2786 | #else |
2787 | /* We're getting selection request events, but we don't have | |
2788 | a window system. */ | |
2789 | abort (); | |
2790 | #endif | |
48e416d4 RS |
2791 | } |
2792 | ||
1e12dd87 | 2793 | else if (event->kind == selection_clear_event) |
48e416d4 | 2794 | { |
598a9fa7 | 2795 | #ifdef HAVE_X11 |
e0301c07 RS |
2796 | struct input_event copy; |
2797 | ||
2798 | /* Remove it from the buffer before processing it. */ | |
2799 | copy = *event; | |
beecf6a1 | 2800 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 2801 | input_pending = readable_events (0); |
90c2bb0c | 2802 | x_handle_selection_clear (©); |
598a9fa7 JB |
2803 | #else |
2804 | /* We're getting selection request events, but we don't have | |
2805 | a window system. */ | |
2806 | abort (); | |
2807 | #endif | |
48e416d4 | 2808 | } |
e98a93eb | 2809 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
2810 | else if (event->kind == delete_window_event) |
2811 | { | |
bbdc2092 RS |
2812 | /* Make an event (delete-frame (FRAME)). */ |
2813 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 2814 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 2815 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2816 | } |
2817 | else if (event->kind == iconify_event) | |
2818 | { | |
2819 | /* Make an event (iconify-frame (FRAME)). */ | |
2820 | obj = Fcons (event->frame_or_window, Qnil); | |
2821 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 2822 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2823 | } |
2824 | else if (event->kind == deiconify_event) | |
2825 | { | |
2826 | /* Make an event (make-frame-visible (FRAME)). */ | |
2827 | obj = Fcons (event->frame_or_window, Qnil); | |
2828 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 2829 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
2830 | } |
2831 | #endif | |
a8015ab5 KH |
2832 | else if (event->kind == buffer_switch_event) |
2833 | { | |
2834 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 2835 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 2836 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 2837 | } |
07de30b9 | 2838 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
2839 | else if (event->kind == menu_bar_activate_event) |
2840 | { | |
2841 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 2842 | input_pending = readable_events (0); |
e649d076 RS |
2843 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
2844 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 RS |
2845 | } |
2846 | #endif | |
a612e298 | 2847 | /* Just discard these, by returning nil. |
c5fdd383 | 2848 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
2849 | when we need to randomly delete events from the queue. |
2850 | (They shouldn't otherwise be found in the buffer, | |
2851 | but on some machines it appears they do show up | |
c5fdd383 | 2852 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
2853 | /* On Windows NT/9X, no_event is used to delete extraneous |
2854 | mouse events during a popup-menu call. */ | |
a612e298 | 2855 | else if (event->kind == no_event) |
beecf6a1 | 2856 | kbd_fetch_ptr = event + 1; |
48e416d4 | 2857 | |
4bb994d1 JB |
2858 | /* If this event is on a different frame, return a switch-frame this |
2859 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
2860 | else |
2861 | { | |
9b8eb840 | 2862 | Lisp_Object frame; |
1e12dd87 | 2863 | Lisp_Object focus; |
7b4aedb9 | 2864 | |
9b8eb840 | 2865 | frame = event->frame_or_window; |
2470a66f KH |
2866 | if (CONSP (frame)) |
2867 | frame = XCONS (frame)->car; | |
2868 | else if (WINDOWP (frame)) | |
1e12dd87 | 2869 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 2870 | |
1e12dd87 RS |
2871 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
2872 | if (! NILP (focus)) | |
2873 | frame = focus; | |
07d2b8de | 2874 | |
4c52b668 | 2875 | if (! EQ (frame, internal_last_event_frame) |
1e12dd87 RS |
2876 | && XFRAME (frame) != selected_frame) |
2877 | obj = make_lispy_switch_frame (frame); | |
4c52b668 | 2878 | internal_last_event_frame = frame; |
4bb994d1 | 2879 | |
1e12dd87 RS |
2880 | /* If we didn't decide to make a switch-frame event, go ahead |
2881 | and build a real event from the queue entry. */ | |
cd21b839 | 2882 | |
1e12dd87 RS |
2883 | if (NILP (obj)) |
2884 | { | |
2885 | obj = make_lispy_event (event); | |
e98a93eb | 2886 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
2887 | /* If this was a menu selection, then set the flag to inhibit |
2888 | writing to last_nonmenu_event. Don't do this if the event | |
2889 | we're returning is (menu-bar), though; that indicates the | |
2890 | beginning of the menu sequence, and we might as well leave | |
2891 | that as the `event with parameters' for this selection. */ | |
2892 | if (event->kind == menu_bar_event | |
2893 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) | |
2894 | && used_mouse_menu) | |
2895 | *used_mouse_menu = 1; | |
2896 | #endif | |
1e12dd87 RS |
2897 | |
2898 | /* Wipe out this event, to catch bugs. */ | |
2899 | event->kind = no_event; | |
beecf6a1 | 2900 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 2901 | |
beecf6a1 | 2902 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 2903 | } |
4bb994d1 | 2904 | } |
284f4730 | 2905 | } |
2eb6bfbe | 2906 | #ifdef HAVE_MOUSE |
a612e298 | 2907 | /* Try generating a mouse motion event. */ |
f3253854 | 2908 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2909 | { |
f3253854 | 2910 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 2911 | Lisp_Object bar_window; |
3c370943 | 2912 | enum scroll_bar_part part; |
e5d77022 JB |
2913 | Lisp_Object x, y; |
2914 | unsigned long time; | |
284f4730 | 2915 | |
c5fdd383 | 2916 | *kbp = current_kboard; |
e177ac3a RS |
2917 | /* Note that this uses F to determine which display to look at. |
2918 | If there is no valid info, it does not store anything | |
2919 | so x remains nil. */ | |
2920 | x = Qnil; | |
dd26ab75 | 2921 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
2922 | |
2923 | obj = Qnil; | |
284f4730 | 2924 | |
4bb994d1 JB |
2925 | /* Decide if we should generate a switch-frame event. Don't |
2926 | generate switch-frame events for motion outside of all Emacs | |
2927 | frames. */ | |
e177ac3a | 2928 | if (!NILP (x) && f) |
cd21b839 | 2929 | { |
9b8eb840 | 2930 | Lisp_Object frame; |
4bb994d1 | 2931 | |
9b8eb840 | 2932 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 2933 | if (NILP (frame)) |
18cd2eeb | 2934 | XSETFRAME (frame, f); |
4bb994d1 | 2935 | |
4c52b668 | 2936 | if (! EQ (frame, internal_last_event_frame) |
80645119 | 2937 | && XFRAME (frame) != selected_frame) |
764cb3f9 | 2938 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 2939 | internal_last_event_frame = frame; |
cd21b839 | 2940 | } |
4bb994d1 | 2941 | |
df0f2ba1 | 2942 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 2943 | return a mouse-motion event. */ |
e177ac3a | 2944 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 2945 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 2946 | } |
2eb6bfbe | 2947 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
2948 | else |
2949 | /* We were promised by the above while loop that there was | |
2950 | something for us to read! */ | |
2951 | abort (); | |
2952 | ||
d9d4c147 | 2953 | input_pending = readable_events (0); |
284f4730 | 2954 | |
4c52b668 | 2955 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 2956 | |
284f4730 JB |
2957 | return (obj); |
2958 | } | |
a612e298 RS |
2959 | \f |
2960 | /* Process any events that are not user-visible, | |
2961 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
2962 | |
2963 | void | |
d9d4c147 KH |
2964 | swallow_events (do_display) |
2965 | int do_display; | |
3a3b9632 | 2966 | { |
87dd9b9b RS |
2967 | int old_timers_run; |
2968 | ||
beecf6a1 | 2969 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
2970 | { |
2971 | struct input_event *event; | |
2972 | ||
beecf6a1 KH |
2973 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2974 | ? kbd_fetch_ptr | |
2975 | : kbd_buffer); | |
3a3b9632 RS |
2976 | |
2977 | last_event_timestamp = event->timestamp; | |
2978 | ||
2979 | /* These two kinds of events get special handling | |
2980 | and don't actually appear to the command loop. */ | |
2981 | if (event->kind == selection_request_event) | |
2982 | { | |
2983 | #ifdef HAVE_X11 | |
4581e928 | 2984 | struct input_event copy; |
e0301c07 RS |
2985 | |
2986 | /* Remove it from the buffer before processing it, | |
2987 | since otherwise swallow_events called recursively could see it | |
2988 | and process it again. */ | |
4581e928 | 2989 | copy = *event; |
beecf6a1 | 2990 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 2991 | input_pending = readable_events (0); |
4581e928 | 2992 | x_handle_selection_request (©); |
3a3b9632 RS |
2993 | #else |
2994 | /* We're getting selection request events, but we don't have | |
2995 | a window system. */ | |
2996 | abort (); | |
2997 | #endif | |
2998 | } | |
2999 | ||
3000 | else if (event->kind == selection_clear_event) | |
3001 | { | |
3002 | #ifdef HAVE_X11 | |
e0301c07 RS |
3003 | struct input_event copy; |
3004 | ||
3005 | /* Remove it from the buffer before processing it, */ | |
3006 | copy = *event; | |
3007 | ||
beecf6a1 | 3008 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3009 | input_pending = readable_events (0); |
90c2bb0c | 3010 | x_handle_selection_clear (©); |
3a3b9632 RS |
3011 | #else |
3012 | /* We're getting selection request events, but we don't have | |
3013 | a window system. */ | |
3014 | abort (); | |
3015 | #endif | |
3016 | } | |
3017 | else | |
3018 | break; | |
3019 | } | |
3020 | ||
87dd9b9b | 3021 | old_timers_run = timers_run; |
d9d4c147 | 3022 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3023 | |
3024 | if (timers_run != old_timers_run && do_display) | |
3025 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3026 | } |
a612e298 | 3027 | \f |
d9d4c147 KH |
3028 | static EMACS_TIME timer_idleness_start_time; |
3029 | ||
3030 | /* Record the start of when Emacs is idle, | |
3031 | for the sake of running idle-time timers. */ | |
3032 | ||
07a59269 | 3033 | void |
d9d4c147 KH |
3034 | timer_start_idle () |
3035 | { | |
3036 | Lisp_Object timers; | |
3037 | ||
3038 | /* If we are already in the idle state, do nothing. */ | |
3039 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3040 | return; | |
3041 | ||
3042 | EMACS_GET_TIME (timer_idleness_start_time); | |
3043 | ||
3044 | /* Mark all idle-time timers as once again candidates for running. */ | |
3045 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCONS (timers)->cdr) | |
3046 | { | |
3047 | Lisp_Object timer; | |
3048 | ||
3049 | timer = XCONS (timers)->car; | |
3050 | ||
3051 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3052 | continue; | |
3053 | XVECTOR (timer)->contents[0] = Qnil; | |
3054 | } | |
3055 | } | |
3056 | ||
3057 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3058 | ||
07a59269 | 3059 | void |
d9d4c147 KH |
3060 | timer_stop_idle () |
3061 | { | |
3062 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3063 | } | |
3064 | ||
e044e87c RS |
3065 | /* This is only for debugging. */ |
3066 | struct input_event last_timer_event; | |
3067 | ||
c04cbc3b RS |
3068 | /* Check whether a timer has fired. To prevent larger problems we simply |
3069 | disregard elements that are not proper timers. Do not make a circular | |
3070 | timer list for the time being. | |
3071 | ||
3072 | Returns the number of seconds to wait until the next timer fires. If a | |
3073 | timer is triggering now, return zero seconds. | |
3074 | If no timer is active, return -1 seconds. | |
3075 | ||
4ec4ed6a RS |
3076 | If a timer is ripe, we run it, with quitting turned off. |
3077 | ||
3078 | DO_IT_NOW is now ignored. It used to mean that we should | |
3079 | run the timer directly instead of queueing a timer-event. | |
3080 | Now we always run timers directly. */ | |
c04cbc3b RS |
3081 | |
3082 | EMACS_TIME | |
3083 | timer_check (do_it_now) | |
3084 | int do_it_now; | |
3085 | { | |
3086 | EMACS_TIME nexttime; | |
9291c072 RS |
3087 | EMACS_TIME now, idleness_now; |
3088 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3089 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3090 | |
c04cbc3b RS |
3091 | EMACS_SET_SECS (nexttime, -1); |
3092 | EMACS_SET_USECS (nexttime, -1); | |
3093 | ||
9291c072 | 3094 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3095 | timers = Vtimer_list; |
9291c072 RS |
3096 | /* Consider the idle timers only if Emacs is idle. */ |
3097 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3098 | idle_timers = Vtimer_idle_list; | |
3099 | else | |
3100 | idle_timers = Qnil; | |
3101 | chosen_timer = Qnil; | |
3102 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3103 | |
9291c072 | 3104 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3105 | { |
9291c072 RS |
3106 | EMACS_GET_TIME (now); |
3107 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3108 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3109 | } | |
c04cbc3b | 3110 | |
9291c072 RS |
3111 | while (CONSP (timers) || CONSP (idle_timers)) |
3112 | { | |
3113 | int triggertime = EMACS_SECS (now); | |
3114 | Lisp_Object *vector; | |
3115 | Lisp_Object timer, idle_timer; | |
3116 | EMACS_TIME timer_time, idle_timer_time; | |
3117 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3118 | ||
3119 | /* Skip past invalid timers and timers already handled. */ | |
3120 | if (!NILP (timers)) | |
c04cbc3b | 3121 | { |
d9d4c147 | 3122 | timer = XCONS (timers)->car; |
9291c072 RS |
3123 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3124 | { | |
3125 | timers = XCONS (timers)->cdr; | |
3126 | continue; | |
3127 | } | |
3128 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3129 | |
9291c072 RS |
3130 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3131 | || !INTEGERP (vector[3]) | |
3132 | || ! NILP (vector[0])) | |
3133 | { | |
3134 | timers = XCONS (timers)->cdr; | |
3135 | continue; | |
3136 | } | |
3137 | } | |
3138 | if (!NILP (idle_timers)) | |
3139 | { | |
3140 | timer = XCONS (idle_timers)->car; | |
d9d4c147 | 3141 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 RS |
3142 | { |
3143 | idle_timers = XCONS (idle_timers)->cdr; | |
3144 | continue; | |
3145 | } | |
d9d4c147 KH |
3146 | vector = XVECTOR (timer)->contents; |
3147 | ||
3148 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3149 | || !INTEGERP (vector[3]) |
3150 | || ! NILP (vector[0])) | |
3151 | { | |
3152 | idle_timers = XCONS (idle_timers)->cdr; | |
3153 | continue; | |
3154 | } | |
3155 | } | |
d9d4c147 | 3156 | |
9291c072 RS |
3157 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3158 | based on the next ordinary timer. | |
3159 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3160 | this timer becomes ripe (negative if it's already ripe). */ | |
3161 | if (!NILP (timers)) | |
3162 | { | |
3163 | timer = XCONS (timers)->car; | |
3164 | vector = XVECTOR (timer)->contents; | |
d9d4c147 KH |
3165 | EMACS_SET_SECS (timer_time, |
3166 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3167 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3168 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3169 | } | |
ba8dfba8 | 3170 | |
9291c072 RS |
3171 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3172 | based on the next idle timer. */ | |
3173 | if (!NILP (idle_timers)) | |
3174 | { | |
3175 | idle_timer = XCONS (idle_timers)->car; | |
3176 | vector = XVECTOR (idle_timer)->contents; | |
3177 | EMACS_SET_SECS (idle_timer_time, | |
3178 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3179 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3180 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3181 | } | |
ba8dfba8 | 3182 | |
9291c072 RS |
3183 | /* Decide which timer is the next timer, |
3184 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3185 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3186 | |
9291c072 RS |
3187 | if (! NILP (timers) && ! NILP (idle_timers)) |
3188 | { | |
3189 | EMACS_TIME temp; | |
3190 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3191 | if (EMACS_TIME_NEG_P (temp)) | |
3192 | { | |
3193 | chosen_timer = timer; | |
3194 | timers = XCONS (timers)->cdr; | |
3195 | difference = timer_difference; | |
c04cbc3b | 3196 | } |
d9d4c147 | 3197 | else |
d9d4c147 | 3198 | { |
9291c072 RS |
3199 | chosen_timer = idle_timer; |
3200 | idle_timers = XCONS (idle_timers)->cdr; | |
3201 | difference = idle_timer_difference; | |
d9d4c147 | 3202 | } |
7ea13e12 | 3203 | } |
9291c072 RS |
3204 | else if (! NILP (timers)) |
3205 | { | |
3206 | chosen_timer = timer; | |
3207 | timers = XCONS (timers)->cdr; | |
3208 | difference = timer_difference; | |
3209 | } | |
3210 | else | |
3211 | { | |
3212 | chosen_timer = idle_timer; | |
3213 | idle_timers = XCONS (idle_timers)->cdr; | |
3214 | difference = idle_timer_difference; | |
3215 | } | |
3216 | vector = XVECTOR (chosen_timer)->contents; | |
3217 | ||
3218 | /* If timer is rupe, run it if it hasn't been run. */ | |
3219 | if (EMACS_TIME_NEG_P (difference) | |
3220 | || (EMACS_SECS (difference) == 0 | |
3221 | && EMACS_USECS (difference) == 0)) | |
3222 | { | |
3223 | if (NILP (vector[0])) | |
3224 | { | |
d925fb39 RS |
3225 | Lisp_Object tem; |
3226 | int was_locked = single_kboard; | |
3227 | int count = specpdl_ptr - specpdl; | |
3228 | ||
9291c072 RS |
3229 | /* Mark the timer as triggered to prevent problems if the lisp |
3230 | code fails to reschedule it right. */ | |
3231 | vector[0] = Qt; | |
3232 | ||
d925fb39 | 3233 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3234 | |
d925fb39 RS |
3235 | call1 (Qtimer_event_handler, chosen_timer); |
3236 | timers_run++; | |
9291c072 | 3237 | |
d925fb39 | 3238 | unbind_to (count, Qnil); |
4ec4ed6a | 3239 | |
d925fb39 RS |
3240 | /* Resume allowing input from any kboard, if that was true before. */ |
3241 | if (!was_locked) | |
3242 | any_kboard_state (); | |
9291c072 | 3243 | |
d925fb39 RS |
3244 | /* Since we have handled the event, |
3245 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3246 | } |
3247 | } | |
3248 | else | |
3249 | /* When we encounter a timer that is still waiting, | |
3250 | return the amount of time to wait before it is ripe. */ | |
3251 | { | |
3252 | UNGCPRO; | |
9291c072 RS |
3253 | return difference; |
3254 | } | |
c04cbc3b | 3255 | } |
9291c072 | 3256 | |
7ea13e12 RS |
3257 | /* No timers are pending in the future. */ |
3258 | /* Return 0 if we generated an event, and -1 if not. */ | |
3259 | UNGCPRO; | |
c04cbc3b RS |
3260 | return nexttime; |
3261 | } | |
3262 | \f | |
284f4730 | 3263 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3264 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3265 | static Lisp_Object func_key_syms; |
3266 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3267 | #ifdef WINDOWSNT |
3268 | static Lisp_Object mouse_wheel_syms; | |
3269 | #endif | |
284f4730 | 3270 | |
e9bf89a0 RS |
3271 | /* This is a list of keysym codes for special "accent" characters. |
3272 | It parallels lispy_accent_keys. */ | |
3273 | ||
3274 | static int lispy_accent_codes[] = | |
3275 | { | |
79a7046c | 3276 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3277 | XK_dead_circumflex, |
79a7046c RS |
3278 | #else |
3279 | 0, | |
3280 | #endif | |
3281 | #ifdef XK_dead_grave | |
e9bf89a0 | 3282 | XK_dead_grave, |
79a7046c RS |
3283 | #else |
3284 | 0, | |
3285 | #endif | |
3286 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3287 | XK_dead_tilde, |
79a7046c RS |
3288 | #else |
3289 | 0, | |
3290 | #endif | |
3291 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3292 | XK_dead_diaeresis, |
79a7046c RS |
3293 | #else |
3294 | 0, | |
3295 | #endif | |
3296 | #ifdef XK_dead_macron | |
e9bf89a0 | 3297 | XK_dead_macron, |
79a7046c RS |
3298 | #else |
3299 | 0, | |
3300 | #endif | |
3301 | #ifdef XK_dead_degree | |
e9bf89a0 | 3302 | XK_dead_degree, |
79a7046c RS |
3303 | #else |
3304 | 0, | |
3305 | #endif | |
3306 | #ifdef XK_dead_acute | |
e9bf89a0 | 3307 | XK_dead_acute, |
79a7046c RS |
3308 | #else |
3309 | 0, | |
3310 | #endif | |
3311 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3312 | XK_dead_cedilla, |
79a7046c RS |
3313 | #else |
3314 | 0, | |
3315 | #endif | |
3316 | #ifdef XK_dead_breve | |
e9bf89a0 | 3317 | XK_dead_breve, |
79a7046c RS |
3318 | #else |
3319 | 0, | |
3320 | #endif | |
3321 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3322 | XK_dead_ogonek, |
79a7046c RS |
3323 | #else |
3324 | 0, | |
3325 | #endif | |
3326 | #ifdef XK_dead_caron | |
e9bf89a0 | 3327 | XK_dead_caron, |
79a7046c RS |
3328 | #else |
3329 | 0, | |
3330 | #endif | |
3331 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3332 | XK_dead_doubleacute, |
79a7046c RS |
3333 | #else |
3334 | 0, | |
3335 | #endif | |
3336 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3337 | XK_dead_abovedot, |
79a7046c RS |
3338 | #else |
3339 | 0, | |
3340 | #endif | |
e9bf89a0 RS |
3341 | }; |
3342 | ||
3343 | /* This is a list of Lisp names for special "accent" characters. | |
3344 | It parallels lispy_accent_codes. */ | |
3345 | ||
3346 | static char *lispy_accent_keys[] = | |
3347 | { | |
3348 | "dead-circumflex", | |
3349 | "dead-grave", | |
3350 | "dead-tilde", | |
3351 | "dead-diaeresis", | |
3352 | "dead-macron", | |
3353 | "dead-degree", | |
3354 | "dead-acute", | |
3355 | "dead-cedilla", | |
3356 | "dead-breve", | |
3357 | "dead-ogonek", | |
3358 | "dead-caron", | |
3359 | "dead-doubleacute", | |
3360 | "dead-abovedot", | |
3361 | }; | |
3362 | ||
e98a93eb GV |
3363 | #ifdef HAVE_NTGUI |
3364 | #define FUNCTION_KEY_OFFSET 0x0 | |
3365 | ||
3366 | char *lispy_function_keys[] = | |
3367 | { | |
3368 | 0, /* 0 */ | |
3369 | ||
3370 | 0, /* VK_LBUTTON 0x01 */ | |
3371 | 0, /* VK_RBUTTON 0x02 */ | |
3372 | "cancel", /* VK_CANCEL 0x03 */ | |
3373 | 0, /* VK_MBUTTON 0x04 */ | |
3374 | ||
3375 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3376 | ||
3377 | "backspace", /* VK_BACK 0x08 */ | |
3378 | "tab", /* VK_TAB 0x09 */ | |
3379 | ||
3380 | 0, 0, /* 0x0A .. 0x0B */ | |
3381 | ||
3382 | "clear", /* VK_CLEAR 0x0C */ | |
3383 | "return", /* VK_RETURN 0x0D */ | |
3384 | ||
3385 | 0, 0, /* 0x0E .. 0x0F */ | |
3386 | ||
3387 | "shift", /* VK_SHIFT 0x10 */ | |
3388 | "control", /* VK_CONTROL 0x11 */ | |
3389 | "menu", /* VK_MENU 0x12 */ | |
3390 | "pause", /* VK_PAUSE 0x13 */ | |
3391 | "capital", /* VK_CAPITAL 0x14 */ | |
3392 | ||
3393 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3394 | ||
3395 | 0, /* VK_ESCAPE 0x1B */ | |
3396 | ||
3397 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3398 | ||
3399 | 0, /* VK_SPACE 0x20 */ | |
3400 | "prior", /* VK_PRIOR 0x21 */ | |
3401 | "next", /* VK_NEXT 0x22 */ | |
3402 | "end", /* VK_END 0x23 */ | |
3403 | "home", /* VK_HOME 0x24 */ | |
3404 | "left", /* VK_LEFT 0x25 */ | |
3405 | "up", /* VK_UP 0x26 */ | |
3406 | "right", /* VK_RIGHT 0x27 */ | |
3407 | "down", /* VK_DOWN 0x28 */ | |
3408 | "select", /* VK_SELECT 0x29 */ | |
3409 | "print", /* VK_PRINT 0x2A */ | |
3410 | "execute", /* VK_EXECUTE 0x2B */ | |
3411 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3412 | "insert", /* VK_INSERT 0x2D */ | |
3413 | "delete", /* VK_DELETE 0x2E */ | |
3414 | "help", /* VK_HELP 0x2F */ | |
3415 | ||
3416 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3417 | ||
3418 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3419 | ||
3420 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3421 | ||
3422 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3423 | ||
3424 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3425 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3426 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3427 | ||
e376f90d RS |
3428 | "lwindow", /* VK_LWIN 0x5B */ |
3429 | "rwindow", /* VK_RWIN 0x5C */ | |
3430 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3431 | |
3432 | 0, 0, /* 0x5E .. 0x5F */ | |
3433 | ||
3434 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3435 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3436 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3437 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3438 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3439 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3440 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3441 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3442 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3443 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3444 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3445 | "kp-add", /* VK_ADD 0x6B */ | |
3446 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3447 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3448 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3449 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3450 | "f1", /* VK_F1 0x70 */ | |
3451 | "f2", /* VK_F2 0x71 */ | |
3452 | "f3", /* VK_F3 0x72 */ | |
3453 | "f4", /* VK_F4 0x73 */ | |
3454 | "f5", /* VK_F5 0x74 */ | |
3455 | "f6", /* VK_F6 0x75 */ | |
3456 | "f7", /* VK_F7 0x76 */ | |
3457 | "f8", /* VK_F8 0x77 */ | |
3458 | "f9", /* VK_F9 0x78 */ | |
3459 | "f10", /* VK_F10 0x79 */ | |
3460 | "f11", /* VK_F11 0x7A */ | |
3461 | "f12", /* VK_F12 0x7B */ | |
3462 | "f13", /* VK_F13 0x7C */ | |
3463 | "f14", /* VK_F14 0x7D */ | |
3464 | "f15", /* VK_F15 0x7E */ | |
3465 | "f16", /* VK_F16 0x7F */ | |
3466 | "f17", /* VK_F17 0x80 */ | |
3467 | "f18", /* VK_F18 0x81 */ | |
3468 | "f19", /* VK_F19 0x82 */ | |
3469 | "f20", /* VK_F20 0x83 */ | |
3470 | "f21", /* VK_F21 0x84 */ | |
3471 | "f22", /* VK_F22 0x85 */ | |
3472 | "f23", /* VK_F23 0x86 */ | |
3473 | "f24", /* VK_F24 0x87 */ | |
3474 | ||
3475 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3476 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3477 | ||
3478 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3479 | "scroll", /* VK_SCROLL 0x91 */ | |
3480 | ||
e376f90d RS |
3481 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3482 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3483 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3484 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3485 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3486 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3487 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3488 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3489 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3490 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3491 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3492 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3493 | ||
3494 | 0, 0, /* 0x9E .. 0x9F */ | |
3495 | ||
e98a93eb GV |
3496 | /* |
3497 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
3498 | * Used only as parameters to GetAsyncKeyState() and GetKeyState(). | |
3499 | * No other API or message will distinguish left and right keys this way. | |
3500 | */ | |
3501 | /* 0xA0 .. 0xEF */ | |
3502 | ||
3503 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3504 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3505 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3506 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3507 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3508 | ||
3509 | /* 0xF0 .. 0xF5 */ | |
3510 | ||
3511 | 0, 0, 0, 0, 0, 0, | |
3512 | ||
3513 | "attn", /* VK_ATTN 0xF6 */ | |
3514 | "crsel", /* VK_CRSEL 0xF7 */ | |
3515 | "exsel", /* VK_EXSEL 0xF8 */ | |
3516 | "ereof", /* VK_EREOF 0xF9 */ | |
3517 | "play", /* VK_PLAY 0xFA */ | |
3518 | "zoom", /* VK_ZOOM 0xFB */ | |
3519 | "noname", /* VK_NONAME 0xFC */ | |
3520 | "pa1", /* VK_PA1 0xFD */ | |
3521 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
3522 | }; | |
3523 | ||
04f215f0 | 3524 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3525 | |
37cd9f30 KH |
3526 | #ifdef XK_kana_A |
3527 | static char *lispy_kana_keys[] = | |
3528 | { | |
3529 | /* X Keysym value */ | |
3530 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3531 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3532 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3533 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3534 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3535 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3536 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3537 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3538 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3539 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3540 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3541 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3542 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3543 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3544 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3545 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3546 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3547 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3548 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3549 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3550 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3551 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3552 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3553 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3554 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3555 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3556 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3557 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3558 | }; | |
3559 | #endif /* XK_kana_A */ | |
3560 | ||
04f215f0 RS |
3561 | #define FUNCTION_KEY_OFFSET 0xff00 |
3562 | ||
284f4730 JB |
3563 | /* You'll notice that this table is arranged to be conveniently |
3564 | indexed by X Windows keysym values. */ | |
3565 | static char *lispy_function_keys[] = | |
3566 | { | |
3567 | /* X Keysym value */ | |
3568 | ||
80e4aa30 | 3569 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00 */ |
86e5706b RS |
3570 | "backspace", |
3571 | "tab", | |
3572 | "linefeed", | |
3573 | "clear", | |
3574 | 0, | |
3575 | "return", | |
3576 | 0, 0, | |
3577 | 0, 0, 0, /* 0xff10 */ | |
3578 | "pause", | |
3579 | 0, 0, 0, 0, 0, 0, 0, | |
3580 | "escape", | |
3581 | 0, 0, 0, 0, | |
37cd9f30 KH |
3582 | 0, "kanji", "muhenkan", |
3583 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff20...2f */ | |
86e5706b RS |
3584 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff30...3f */ |
3585 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ | |
3586 | ||
284f4730 JB |
3587 | "home", /* 0xff50 */ /* IsCursorKey */ |
3588 | "left", | |
3589 | "up", | |
3590 | "right", | |
3591 | "down", | |
3592 | "prior", | |
3593 | "next", | |
3594 | "end", | |
3595 | "begin", | |
3596 | 0, /* 0xff59 */ | |
3597 | 0, 0, 0, 0, 0, 0, | |
3598 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ | |
3599 | "print", | |
3600 | "execute", | |
3601 | "insert", | |
3602 | 0, /* 0xff64 */ | |
3603 | "undo", | |
3604 | "redo", | |
3605 | "menu", | |
3606 | "find", | |
3607 | "cancel", | |
3608 | "help", | |
3609 | "break", /* 0xff6b */ | |
3610 | ||
9fdbfdf8 | 3611 | 0, 0, 0, 0, 0, 0, 0, 0, "backtab", 0, |
284f4730 | 3612 | 0, /* 0xff76 */ |
36ae397e | 3613 | 0, 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff7f */ |
284f4730 JB |
3614 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3615 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3616 | "kp-tab", /* 0xff89 */ | |
3617 | 0, 0, 0, | |
3618 | "kp-enter", /* 0xff8d */ | |
3619 | 0, 0, 0, | |
3620 | "kp-f1", /* 0xff91 */ | |
3621 | "kp-f2", | |
3622 | "kp-f3", | |
3623 | "kp-f4", | |
872157e7 RS |
3624 | "kp-home", /* 0xff95 */ |
3625 | "kp-left", | |
3626 | "kp-up", | |
3627 | "kp-right", | |
3628 | "kp-down", | |
3629 | "kp-prior", /* kp-page-up */ | |
3630 | "kp-next", /* kp-page-down */ | |
3631 | "kp-end", | |
3632 | "kp-begin", | |
3633 | "kp-insert", | |
3634 | "kp-delete", | |
3635 | 0, /* 0xffa0 */ | |
3636 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3637 | "kp-multiply", /* 0xffaa */ |
3638 | "kp-add", | |
3639 | "kp-separator", | |
3640 | "kp-subtract", | |
3641 | "kp-decimal", | |
3642 | "kp-divide", /* 0xffaf */ | |
3643 | "kp-0", /* 0xffb0 */ | |
3644 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3645 | 0, /* 0xffba */ | |
3646 | 0, 0, | |
3647 | "kp-equal", /* 0xffbd */ | |
3648 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3649 | "f2", |
3650 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3651 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3652 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3653 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3654 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3655 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3656 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3657 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 3658 | }; |
284f4730 | 3659 | |
04f215f0 RS |
3660 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
3661 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
3662 | ||
3663 | static char *iso_lispy_function_keys[] = | |
3664 | { | |
3665 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
3666 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
3667 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
3668 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
3669 | "iso-lefttab", /* 0xfe20 */ | |
3670 | "iso-move-line-up", "iso-move-line-down", | |
3671 | "iso-partial-line-up", "iso-partial-line-down", | |
3672 | "iso-partial-space-left", "iso-partial-space-right", | |
3673 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
3674 | "iso-release-margin-left", "iso-release-margin-right", | |
3675 | "iso-release-both-margins", | |
3676 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
3677 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
3678 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
3679 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
3680 | }; | |
3681 | ||
3682 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 3683 | |
df0f2ba1 | 3684 | static char *lispy_mouse_names[] = |
284f4730 JB |
3685 | { |
3686 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3687 | }; | |
3688 | ||
07de30b9 GV |
3689 | #ifdef WINDOWSNT |
3690 | /* mouse-wheel events are generated by the wheel on devices such as | |
3691 | the MS Intellimouse. The wheel sits in between the left and right | |
3692 | mouse buttons, and is typically used to scroll or zoom the window | |
3693 | underneath the pointer. mouse-wheel events specify the object on | |
3694 | which they operate, and a delta corresponding to the amount and | |
3695 | direction that the wheel is rotated. Clicking the mouse-wheel | |
3696 | generates a mouse-2 event. */ | |
3697 | static char *lispy_mouse_wheel_names[] = | |
3698 | { | |
3699 | "mouse-wheel" | |
3700 | }; | |
3701 | #endif /* WINDOWSNT */ | |
3702 | ||
3c370943 | 3703 | /* Scroll bar parts. */ |
4bb994d1 | 3704 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
db08707d | 3705 | Lisp_Object Qup, Qdown; |
4bb994d1 | 3706 | |
3c370943 JB |
3707 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
3708 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d RS |
3709 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
3710 | &Qup, &Qdown, | |
4bb994d1 JB |
3711 | }; |
3712 | ||
3713 | ||
7b4aedb9 | 3714 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 3715 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
3716 | |
3717 | The elements have the form | |
3718 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
3719 | where REST is the cdr of a position as it would be reported in the event. | |
3720 | ||
3721 | The make_lispy_event function stores positions here to tell the | |
3722 | difference between click and drag events, and to store the starting | |
3723 | location to be included in drag events. */ | |
3724 | ||
3725 | static Lisp_Object button_down_location; | |
88cb0656 | 3726 | |
fbcd35bd JB |
3727 | /* Information about the most recent up-going button event: Which |
3728 | button, what location, and what time. */ | |
3729 | ||
559f9d04 RS |
3730 | static int last_mouse_button; |
3731 | static int last_mouse_x; | |
3732 | static int last_mouse_y; | |
3733 | static unsigned long button_down_time; | |
fbcd35bd | 3734 | |
564dc952 JB |
3735 | /* The maximum time between clicks to make a double-click, |
3736 | or Qnil to disable double-click detection, | |
3737 | or Qt for no time limit. */ | |
3738 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
3739 | |
3740 | /* The number of clicks in this multiple-click. */ | |
3741 | ||
3742 | int double_click_count; | |
3743 | ||
284f4730 JB |
3744 | /* Given a struct input_event, build the lisp event which represents |
3745 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
3746 | movement buffer, which should have a movement event in it. |
3747 | ||
3748 | Note that events must be passed to this function in the order they | |
3749 | are received; this function stores the location of button presses | |
3750 | in order to build drag events when the button is released. */ | |
284f4730 JB |
3751 | |
3752 | static Lisp_Object | |
3753 | make_lispy_event (event) | |
3754 | struct input_event *event; | |
3755 | { | |
79a7046c RS |
3756 | int i; |
3757 | ||
0220c518 | 3758 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 3759 | { |
284f4730 JB |
3760 | /* A simple keystroke. */ |
3761 | case ascii_keystroke: | |
86e5706b | 3762 | { |
9343ab07 | 3763 | Lisp_Object lispy_c; |
e9bf89a0 | 3764 | int c = event->code & 0377; |
5a1c6df8 JB |
3765 | /* Turn ASCII characters into control characters |
3766 | when proper. */ | |
3767 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
3768 | c = make_ctrl_char (c); |
3769 | ||
3770 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
3771 | just above, and the shift key was taken care of by the X code, | |
3772 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
3773 | c |= (event->modifiers |
3774 | & (meta_modifier | alt_modifier | |
3775 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
3776 | /* Distinguish Shift-SPC from SPC. */ |
3777 | if ((event->code & 0377) == 040 | |
3778 | && event->modifiers & shift_modifier) | |
3779 | c |= shift_modifier; | |
559f9d04 | 3780 | button_down_time = 0; |
bb9e9bed | 3781 | XSETFASTINT (lispy_c, c); |
9343ab07 | 3782 | return lispy_c; |
86e5706b | 3783 | } |
284f4730 JB |
3784 | |
3785 | /* A function key. The symbol may need to have modifier prefixes | |
3786 | tacked onto it. */ | |
3787 | case non_ascii_keystroke: | |
559f9d04 | 3788 | button_down_time = 0; |
e9bf89a0 RS |
3789 | |
3790 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
3791 | if (event->code == lispy_accent_codes[i]) | |
3792 | return modify_event_symbol (i, | |
3793 | event->modifiers, | |
80e4aa30 | 3794 | Qfunction_key, Qnil, |
e9bf89a0 RS |
3795 | lispy_accent_keys, &accent_key_syms, |
3796 | (sizeof (lispy_accent_keys) | |
3797 | / sizeof (lispy_accent_keys[0]))); | |
3798 | ||
270a208f | 3799 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
3800 | if (event->code & (1 << 28)) |
3801 | { | |
3802 | /* We need to use an alist rather than a vector as the cache | |
3803 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
3804 | if (NILP (current_kboard->system_key_syms)) |
3805 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 3806 | return modify_event_symbol (event->code, |
80e4aa30 | 3807 | event->modifiers, |
7c97ffdc KH |
3808 | Qfunction_key, |
3809 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
3810 | 0, ¤t_kboard->system_key_syms, |
3811 | (unsigned)-1); | |
80e4aa30 RS |
3812 | } |
3813 | ||
37cd9f30 KH |
3814 | #ifdef XK_kana_A |
3815 | if (event->code >= 0x400 && event->code < 0x500) | |
3816 | return modify_event_symbol (event->code - 0x400, | |
3817 | event->modifiers & ~shift_modifier, | |
3818 | Qfunction_key, Qnil, | |
3819 | lispy_kana_keys, &func_key_syms, | |
3820 | (sizeof (lispy_kana_keys) | |
3821 | / sizeof (lispy_kana_keys[0]))); | |
3822 | #endif /* XK_kana_A */ | |
3823 | ||
111c4138 | 3824 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
3825 | if (event->code < FUNCTION_KEY_OFFSET |
3826 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
3827 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
3828 | event->modifiers, | |
3829 | Qfunction_key, Qnil, | |
3830 | iso_lispy_function_keys, &func_key_syms, | |
3831 | (sizeof (iso_lispy_function_keys) | |
3832 | / sizeof (iso_lispy_function_keys[0]))); | |
3833 | else | |
111c4138 | 3834 | #endif |
04f215f0 RS |
3835 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
3836 | event->modifiers, | |
3837 | Qfunction_key, Qnil, | |
3838 | lispy_function_keys, &func_key_syms, | |
3839 | (sizeof (lispy_function_keys) | |
3840 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 3841 | |
514354e9 | 3842 | #ifdef HAVE_MOUSE |
df0f2ba1 | 3843 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 3844 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 3845 | case mouse_click: |
3c370943 | 3846 | case scroll_bar_click: |
284f4730 | 3847 | { |
e9bf89a0 | 3848 | int button = event->code; |
559f9d04 | 3849 | int is_double; |
7b4aedb9 | 3850 | Lisp_Object position; |
dbc4e1c1 JB |
3851 | Lisp_Object *start_pos_ptr; |
3852 | Lisp_Object start_pos; | |
284f4730 | 3853 | |
7b4aedb9 | 3854 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
3855 | abort (); |
3856 | ||
7b4aedb9 JB |
3857 | /* Build the position as appropriate for this mouse click. */ |
3858 | if (event->kind == mouse_click) | |
284f4730 | 3859 | { |
7b4aedb9 | 3860 | int part; |
598a9fa7 | 3861 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 3862 | Lisp_Object window; |
7b4aedb9 | 3863 | Lisp_Object posn; |
9e20143a RS |
3864 | int row, column; |
3865 | ||
5da3133a RS |
3866 | /* Ignore mouse events that were made on frame that |
3867 | have been deleted. */ | |
3868 | if (! FRAME_LIVE_P (f)) | |
3869 | return Qnil; | |
3870 | ||
9e20143a | 3871 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), |
6c6a9be8 | 3872 | &column, &row, NULL, 1); |
7b4aedb9 | 3873 | |
eef045bf RS |
3874 | #ifndef USE_X_TOOLKIT |
3875 | /* In the non-toolkit version, clicks on the menu bar | |
3876 | are ordinary button events in the event buffer. | |
3877 | Distinguish them, and invoke the menu. | |
3878 | ||
3879 | (In the toolkit version, the toolkit handles the menu bar | |
3880 | and Emacs doesn't know about it until after the user | |
3881 | makes a selection.) */ | |
2ee250ec RS |
3882 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
3883 | && (event->modifiers & down_modifier)) | |
bb936752 | 3884 | { |
b7c49376 | 3885 | Lisp_Object items, item; |
0a0e8fe6 RS |
3886 | int hpos; |
3887 | int i; | |
3888 | ||
2ee250ec | 3889 | #if 0 |
0a0e8fe6 RS |
3890 | /* Activate the menu bar on the down event. If the |
3891 | up event comes in before the menu code can deal with it, | |
3892 | just ignore it. */ | |
3893 | if (! (event->modifiers & down_modifier)) | |
3894 | return Qnil; | |
2ee250ec | 3895 | #endif |
0aafc975 | 3896 | |
f2ae6b3f | 3897 | item = Qnil; |
5ec75a55 | 3898 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 3899 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
3900 | { |
3901 | Lisp_Object pos, string; | |
b7c49376 | 3902 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 3903 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
3904 | if (NILP (string)) |
3905 | break; | |
9e20143a RS |
3906 | if (column >= XINT (pos) |
3907 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
3908 | { |
3909 | item = XVECTOR (items)->contents[i]; | |
3910 | break; | |
3911 | } | |
5ec75a55 | 3912 | } |
9e20143a | 3913 | |
5ec75a55 RS |
3914 | position |
3915 | = Fcons (event->frame_or_window, | |
3916 | Fcons (Qmenu_bar, | |
3917 | Fcons (Fcons (event->x, event->y), | |
3918 | Fcons (make_number (event->timestamp), | |
3919 | Qnil)))); | |
3920 | ||
b7c49376 | 3921 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 3922 | } |
eef045bf | 3923 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 3924 | |
9e20143a | 3925 | window = window_from_coordinates (f, column, row, &part); |
0aafc975 | 3926 | |
8c18cbfb | 3927 | if (!WINDOWP (window)) |
78ced549 RS |
3928 | { |
3929 | window = event->frame_or_window; | |
3930 | posn = Qnil; | |
3931 | } | |
284f4730 | 3932 | else |
7b4aedb9 | 3933 | { |
9e20143a | 3934 | int pixcolumn, pixrow; |
c8738c33 | 3935 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
3936 | row -= XINT (XWINDOW (window)->top); |
3937 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
3938 | XSETINT (event->x, pixcolumn); | |
3939 | XSETINT (event->y, pixrow); | |
dbc4e1c1 | 3940 | |
7b4aedb9 JB |
3941 | if (part == 1) |
3942 | posn = Qmode_line; | |
3943 | else if (part == 2) | |
3944 | posn = Qvertical_line; | |
3945 | else | |
18cd2eeb KH |
3946 | XSETINT (posn, |
3947 | buffer_posn_from_coords (XWINDOW (window), | |
3948 | column, row)); | |
7b4aedb9 JB |
3949 | } |
3950 | ||
5ec75a55 RS |
3951 | position |
3952 | = Fcons (window, | |
3953 | Fcons (posn, | |
3954 | Fcons (Fcons (event->x, event->y), | |
3955 | Fcons (make_number (event->timestamp), | |
3956 | Qnil)))); | |
284f4730 | 3957 | } |
7b4aedb9 | 3958 | else |
88cb0656 | 3959 | { |
9e20143a RS |
3960 | Lisp_Object window; |
3961 | Lisp_Object portion_whole; | |
3962 | Lisp_Object part; | |
3963 | ||
3964 | window = event->frame_or_window; | |
3965 | portion_whole = Fcons (event->x, event->y); | |
3966 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 3967 | |
db08707d RS |
3968 | position |
3969 | = Fcons (window, | |
3970 | Fcons (Qvertical_scroll_bar, | |
3971 | Fcons (portion_whole, | |
3972 | Fcons (make_number (event->timestamp), | |
3973 | Fcons (part, Qnil))))); | |
88cb0656 JB |
3974 | } |
3975 | ||
dbc4e1c1 JB |
3976 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
3977 | ||
3978 | start_pos = *start_pos_ptr; | |
3979 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 3980 | |
559f9d04 RS |
3981 | is_double = (button == last_mouse_button |
3982 | && XINT (event->x) == last_mouse_x | |
3983 | && XINT (event->y) == last_mouse_y | |
3984 | && button_down_time != 0 | |
3985 | && (EQ (Vdouble_click_time, Qt) | |
3986 | || (INTEGERP (Vdouble_click_time) | |
3987 | && ((int)(event->timestamp - button_down_time) | |
3988 | < XINT (Vdouble_click_time))))); | |
3989 | last_mouse_button = button; | |
3990 | last_mouse_x = XINT (event->x); | |
3991 | last_mouse_y = XINT (event->y); | |
3992 | ||
7b4aedb9 JB |
3993 | /* If this is a button press, squirrel away the location, so |
3994 | we can decide later whether it was a click or a drag. */ | |
3995 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
3996 | { |
3997 | if (is_double) | |
3998 | { | |
3999 | double_click_count++; | |
4000 | event->modifiers |= ((double_click_count > 2) | |
4001 | ? triple_modifier | |
4002 | : double_modifier); | |
4003 | } | |
4004 | else | |
4005 | double_click_count = 1; | |
4006 | button_down_time = event->timestamp; | |
4007 | *start_pos_ptr = Fcopy_alist (position); | |
4008 | } | |
7b4aedb9 | 4009 | |
88cb0656 | 4010 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4011 | see if this was a click or a drag. */ |
88cb0656 JB |
4012 | else if (event->modifiers & up_modifier) |
4013 | { | |
48e416d4 RS |
4014 | /* If we did not see a down before this up, |
4015 | ignore the up. Probably this happened because | |
4016 | the down event chose a menu item. | |
4017 | It would be an annoyance to treat the release | |
4018 | of the button that chose the menu item | |
4019 | as a separate event. */ | |
4020 | ||
8c18cbfb | 4021 | if (!CONSP (start_pos)) |
48e416d4 RS |
4022 | return Qnil; |
4023 | ||
88cb0656 | 4024 | event->modifiers &= ~up_modifier; |
48e416d4 | 4025 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4026 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4027 | event->modifiers |= click_modifier; |
4028 | else | |
48e416d4 | 4029 | #endif |
dbc4e1c1 JB |
4030 | { |
4031 | /* The third element of every position should be the (x,y) | |
4032 | pair. */ | |
9b8eb840 | 4033 | Lisp_Object down; |
dbc4e1c1 | 4034 | |
9b8eb840 | 4035 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
4036 | if (EQ (event->x, XCONS (down)->car) |
4037 | && EQ (event->y, XCONS (down)->cdr)) | |
4038 | { | |
bc536d84 | 4039 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4040 | } |
4041 | else | |
4042 | { | |
559f9d04 | 4043 | button_down_time = 0; |
fbcd35bd JB |
4044 | event->modifiers |= drag_modifier; |
4045 | } | |
bc536d84 RS |
4046 | /* Don't check is_double; treat this as multiple |
4047 | if the down-event was multiple. */ | |
4048 | if (double_click_count > 1) | |
4049 | event->modifiers |= ((double_click_count > 2) | |
4050 | ? triple_modifier | |
4051 | : double_modifier); | |
dbc4e1c1 | 4052 | } |
88cb0656 JB |
4053 | } |
4054 | else | |
4055 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4056 | the up_modifier set. */ |
88cb0656 JB |
4057 | abort (); |
4058 | ||
88cb0656 | 4059 | { |
7b4aedb9 | 4060 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4061 | Lisp_Object head; |
4062 | ||
4063 | head = modify_event_symbol (button, | |
4064 | event->modifiers, | |
4065 | Qmouse_click, Qnil, | |
4066 | lispy_mouse_names, &mouse_syms, | |
4067 | (sizeof (lispy_mouse_names) | |
4068 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4069 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4070 | return Fcons (head, |
4071 | Fcons (start_pos, | |
4072 | Fcons (position, | |
4073 | Qnil))); | |
fbcd35bd JB |
4074 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4075 | return Fcons (head, | |
4076 | Fcons (position, | |
4077 | Fcons (make_number (double_click_count), | |
4078 | Qnil))); | |
88cb0656 JB |
4079 | else |
4080 | return Fcons (head, | |
7b4aedb9 | 4081 | Fcons (position, |
88cb0656 JB |
4082 | Qnil)); |
4083 | } | |
284f4730 | 4084 | } |
db08707d RS |
4085 | |
4086 | #ifdef WINDOWSNT | |
fbd6baed | 4087 | case w32_scroll_bar_click: |
db08707d RS |
4088 | { |
4089 | int button = event->code; | |
4090 | int is_double; | |
4091 | Lisp_Object position; | |
4092 | Lisp_Object *start_pos_ptr; | |
4093 | Lisp_Object start_pos; | |
4094 | ||
4095 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4096 | abort (); | |
4097 | ||
4098 | { | |
4099 | Lisp_Object window; | |
4100 | Lisp_Object portion_whole; | |
4101 | Lisp_Object part; | |
4102 | ||
4103 | window = event->frame_or_window; | |
4104 | portion_whole = Fcons (event->x, event->y); | |
4105 | part = *scroll_bar_parts[(int) event->part]; | |
4106 | ||
4107 | position = | |
4108 | Fcons (window, | |
4109 | Fcons (Qvertical_scroll_bar, | |
4110 | Fcons (portion_whole, | |
4111 | Fcons (make_number (event->timestamp), | |
4112 | Fcons (part, Qnil))))); | |
4113 | } | |
4114 | ||
fbd6baed | 4115 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4116 | event->modifiers |= click_modifier; |
4117 | ||
4118 | { | |
4119 | /* Get the symbol we should use for the mouse click. */ | |
4120 | Lisp_Object head; | |
4121 | ||
4122 | head = modify_event_symbol (button, | |
4123 | event->modifiers, | |
4124 | Qmouse_click, Qnil, | |
4125 | lispy_mouse_names, &mouse_syms, | |
4126 | (sizeof (lispy_mouse_names) | |
4127 | / sizeof (lispy_mouse_names[0]))); | |
4128 | return Fcons (head, | |
4129 | Fcons (position, | |
4130 | Qnil)); | |
4131 | } | |
4132 | } | |
07de30b9 GV |
4133 | case mouse_wheel: |
4134 | { | |
4135 | int part; | |
4136 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4137 | Lisp_Object window; | |
4138 | Lisp_Object posn; | |
4139 | Lisp_Object head, position; | |
4140 | int row, column; | |
4141 | ||
4142 | /* Ignore mouse events that were made on frame that | |
4143 | have been deleted. */ | |
4144 | if (! FRAME_LIVE_P (f)) | |
4145 | return Qnil; | |
4146 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4147 | &column, &row, NULL, 1); | |
4148 | window = window_from_coordinates (f, column, row, &part); | |
4149 | ||
4150 | if (!WINDOWP (window)) | |
4151 | { | |
4152 | window = event->frame_or_window; | |
4153 | posn = Qnil; | |
4154 | } | |
4155 | else | |
4156 | { | |
4157 | int pixcolumn, pixrow; | |
4158 | column -= XINT (XWINDOW (window)->left); | |
4159 | row -= XINT (XWINDOW (window)->top); | |
4160 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4161 | XSETINT (event->x, pixcolumn); | |
4162 | XSETINT (event->y, pixrow); | |
4163 | ||
4164 | if (part == 1) | |
4165 | posn = Qmode_line; | |
4166 | else if (part == 2) | |
4167 | posn = Qvertical_line; | |
4168 | else | |
4169 | XSETINT (posn, | |
4170 | buffer_posn_from_coords (XWINDOW (window), | |
4171 | column, row)); | |
4172 | } | |
db08707d | 4173 | |
07de30b9 GV |
4174 | { |
4175 | Lisp_Object head, position; | |
4176 | ||
4177 | position | |
4178 | = Fcons (window, | |
4179 | Fcons (posn, | |
4180 | Fcons (Fcons (event->x, event->y), | |
4181 | Fcons (make_number (event->timestamp), | |
4182 | Qnil)))); | |
4183 | ||
4184 | head = modify_event_symbol (0, event->modifiers, | |
4185 | Qmouse_wheel, Qnil, | |
4186 | lispy_mouse_wheel_names, | |
4187 | &mouse_wheel_syms, 1); | |
4188 | return Fcons (head, | |
4189 | Fcons (position, | |
4190 | Fcons (make_number (event->code), | |
4191 | Qnil))); | |
4192 | } | |
4193 | } | |
4194 | #endif /* WINDOWSNT */ | |
514354e9 | 4195 | #endif /* HAVE_MOUSE */ |
284f4730 | 4196 | |
e98a93eb | 4197 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4198 | case menu_bar_event: |
4199 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4200 | if (!CONSP (event->frame_or_window)) | |
4201 | abort (); | |
4202 | return XCONS (event->frame_or_window)->cdr; | |
4203 | #endif | |
4204 | ||
284f4730 JB |
4205 | /* The 'kind' field of the event is something we don't recognize. */ |
4206 | default: | |
48e416d4 | 4207 | abort (); |
284f4730 JB |
4208 | } |
4209 | } | |
4210 | ||
514354e9 | 4211 | #ifdef HAVE_MOUSE |
6cbff1cb | 4212 | |
284f4730 | 4213 | static Lisp_Object |
7b4aedb9 | 4214 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4215 | FRAME_PTR frame; |
7b4aedb9 | 4216 | Lisp_Object bar_window; |
3c370943 | 4217 | enum scroll_bar_part part; |
284f4730 | 4218 | Lisp_Object x, y; |
e5d77022 | 4219 | unsigned long time; |
284f4730 | 4220 | { |
3c370943 | 4221 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4222 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4223 | { |
9b8eb840 | 4224 | Lisp_Object part_sym; |
4bb994d1 | 4225 | |
9b8eb840 | 4226 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4227 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4228 | (Fcons (Fcons (bar_window, |
3c370943 | 4229 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4230 | Fcons (Fcons (x, y), |
4231 | Fcons (make_number (time), | |
cb5df6ae | 4232 | Fcons (part_sym, |
4bb994d1 JB |
4233 | Qnil))))), |
4234 | Qnil))); | |
4235 | } | |
4236 | ||
4237 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4238 | else |
4239 | { | |
4bb994d1 | 4240 | int area; |
9e20143a | 4241 | Lisp_Object window; |
4bb994d1 | 4242 | Lisp_Object posn; |
9e20143a RS |
4243 | int column, row; |
4244 | ||
9e20143a | 4245 | if (frame) |
047688cb RS |
4246 | { |
4247 | /* It's in a frame; which window on that frame? */ | |
6c6a9be8 KH |
4248 | pixel_to_glyph_coords (frame, XINT (x), XINT (y), &column, &row, |
4249 | NULL, 1); | |
047688cb RS |
4250 | window = window_from_coordinates (frame, column, row, &area); |
4251 | } | |
9e20143a RS |
4252 | else |
4253 | window = Qnil; | |
4bb994d1 | 4254 | |
8c18cbfb | 4255 | if (WINDOWP (window)) |
4bb994d1 | 4256 | { |
9e20143a | 4257 | int pixcolumn, pixrow; |
c8738c33 | 4258 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
4259 | row -= XINT (XWINDOW (window)->top); |
4260 | glyph_to_pixel_coords (frame, column, row, &pixcolumn, &pixrow); | |
4261 | XSETINT (x, pixcolumn); | |
4262 | XSETINT (y, pixrow); | |
4bb994d1 JB |
4263 | |
4264 | if (area == 1) | |
4265 | posn = Qmode_line; | |
4266 | else if (area == 2) | |
4267 | posn = Qvertical_line; | |
4268 | else | |
18cd2eeb KH |
4269 | XSETINT (posn, |
4270 | buffer_posn_from_coords (XWINDOW (window), column, row)); | |
4bb994d1 | 4271 | } |
e9bf89a0 RS |
4272 | else if (frame != 0) |
4273 | { | |
18cd2eeb | 4274 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4275 | posn = Qnil; |
4276 | } | |
284f4730 | 4277 | else |
4bb994d1 JB |
4278 | { |
4279 | window = Qnil; | |
4280 | posn = Qnil; | |
bb9e9bed KH |
4281 | XSETFASTINT (x, 0); |
4282 | XSETFASTINT (y, 0); | |
4bb994d1 | 4283 | } |
284f4730 | 4284 | |
4bb994d1 JB |
4285 | return Fcons (Qmouse_movement, |
4286 | Fcons (Fcons (window, | |
4287 | Fcons (posn, | |
4288 | Fcons (Fcons (x, y), | |
4289 | Fcons (make_number (time), | |
4290 | Qnil)))), | |
4291 | Qnil)); | |
4292 | } | |
284f4730 JB |
4293 | } |
4294 | ||
514354e9 | 4295 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4296 | |
cd21b839 JB |
4297 | /* Construct a switch frame event. */ |
4298 | static Lisp_Object | |
4299 | make_lispy_switch_frame (frame) | |
4300 | Lisp_Object frame; | |
4301 | { | |
4302 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4303 | } | |
0a7f1fc0 JB |
4304 | \f |
4305 | /* Manipulating modifiers. */ | |
284f4730 | 4306 | |
0a7f1fc0 | 4307 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4308 | |
0a7f1fc0 JB |
4309 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4310 | SYMBOL's name of the end of the modifiers; the string from this | |
4311 | position is the unmodified symbol name. | |
284f4730 | 4312 | |
0a7f1fc0 | 4313 | This doesn't use any caches. */ |
6da3dd3a | 4314 | |
0a7f1fc0 JB |
4315 | static int |
4316 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4317 | Lisp_Object symbol; |
0a7f1fc0 | 4318 | int *modifier_end; |
284f4730 JB |
4319 | { |
4320 | struct Lisp_String *name; | |
4321 | int i; | |
4322 | int modifiers; | |
284f4730 JB |
4323 | |
4324 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4325 | |
284f4730 JB |
4326 | modifiers = 0; |
4327 | name = XSYMBOL (symbol)->name; | |
4328 | ||
0a7f1fc0 | 4329 | for (i = 0; i+2 <= name->size; ) |
6da3dd3a RS |
4330 | { |
4331 | int this_mod_end = 0; | |
4332 | int this_mod = 0; | |
284f4730 | 4333 | |
6da3dd3a RS |
4334 | /* See if the name continues with a modifier word. |
4335 | Check that the word appears, but don't check what follows it. | |
4336 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4337 | |
6da3dd3a RS |
4338 | switch (name->data[i]) |
4339 | { | |
4340 | #define SINGLE_LETTER_MOD(BIT) \ | |
4341 | (this_mod_end = i + 1, this_mod = BIT) | |
4342 | ||
6da3dd3a RS |
4343 | case 'A': |
4344 | SINGLE_LETTER_MOD (alt_modifier); | |
4345 | break; | |
284f4730 | 4346 | |
6da3dd3a RS |
4347 | case 'C': |
4348 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4349 | break; | |
284f4730 | 4350 | |
6da3dd3a RS |
4351 | case 'H': |
4352 | SINGLE_LETTER_MOD (hyper_modifier); | |
4353 | break; | |
4354 | ||
6da3dd3a RS |
4355 | case 'M': |
4356 | SINGLE_LETTER_MOD (meta_modifier); | |
4357 | break; | |
4358 | ||
6da3dd3a RS |
4359 | case 'S': |
4360 | SINGLE_LETTER_MOD (shift_modifier); | |
4361 | break; | |
4362 | ||
4363 | case 's': | |
6da3dd3a RS |
4364 | SINGLE_LETTER_MOD (super_modifier); |
4365 | break; | |
4366 | ||
0a7f1fc0 | 4367 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4368 | } |
4369 | ||
4370 | /* If we found no modifier, stop looking for them. */ | |
4371 | if (this_mod_end == 0) | |
4372 | break; | |
4373 | ||
4374 | /* Check there is a dash after the modifier, so that it | |
4375 | really is a modifier. */ | |
4376 | if (this_mod_end >= name->size || name->data[this_mod_end] != '-') | |
4377 | break; | |
4378 | ||
4379 | /* This modifier is real; look for another. */ | |
4380 | modifiers |= this_mod; | |
4381 | i = this_mod_end + 1; | |
4382 | } | |
284f4730 | 4383 | |
0a7f1fc0 | 4384 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4385 | if (! (modifiers & (down_modifier | drag_modifier |
4386 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 4387 | && i + 7 == name->size |
4bb994d1 | 4388 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4389 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4390 | modifiers |= click_modifier; |
4391 | ||
4392 | if (modifier_end) | |
4393 | *modifier_end = i; | |
4394 | ||
4395 | return modifiers; | |
4396 | } | |
4397 | ||
0a7f1fc0 JB |
4398 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4399 | prepended to the string BASE[0..BASE_LEN-1]. | |
4400 | This doesn't use any caches. */ | |
4401 | static Lisp_Object | |
4402 | apply_modifiers_uncached (modifiers, base, base_len) | |
4403 | int modifiers; | |
4404 | char *base; | |
4405 | int base_len; | |
4406 | { | |
4407 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4408 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4409 | reference to it. */ | |
4410 | char *new_mods = | |
fbcd35bd | 4411 | (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); |
0a7f1fc0 | 4412 | int mod_len; |
284f4730 | 4413 | |
284f4730 | 4414 | { |
0a7f1fc0 JB |
4415 | char *p = new_mods; |
4416 | ||
4417 | /* Only the event queue may use the `up' modifier; it should always | |
4418 | be turned into a click or drag event before presented to lisp code. */ | |
4419 | if (modifiers & up_modifier) | |
4420 | abort (); | |
4421 | ||
4422 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
4423 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
4424 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
4425 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
4426 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 4427 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
4428 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
4429 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
4430 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
4431 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
4432 | /* The click modifier is denoted by the absence of other modifiers. */ |
4433 | ||
4434 | *p = '\0'; | |
4435 | ||
4436 | mod_len = p - new_mods; | |
4437 | } | |
284f4730 | 4438 | |
0a7f1fc0 | 4439 | { |
9b8eb840 | 4440 | Lisp_Object new_name; |
df0f2ba1 | 4441 | |
9b8eb840 | 4442 | new_name = make_uninit_string (mod_len + base_len); |
0a7f1fc0 JB |
4443 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
4444 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len); | |
284f4730 JB |
4445 | |
4446 | return Fintern (new_name, Qnil); | |
4447 | } | |
4448 | } | |
4449 | ||
4450 | ||
0a7f1fc0 JB |
4451 | static char *modifier_names[] = |
4452 | { | |
fbcd35bd | 4453 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 4454 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 4455 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 4456 | }; |
80645119 | 4457 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
4458 | |
4459 | static Lisp_Object modifier_symbols; | |
4460 | ||
4461 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
4462 | static Lisp_Object | |
4463 | lispy_modifier_list (modifiers) | |
4464 | int modifiers; | |
4465 | { | |
4466 | Lisp_Object modifier_list; | |
4467 | int i; | |
4468 | ||
4469 | modifier_list = Qnil; | |
80645119 | 4470 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 4471 | if (modifiers & (1<<i)) |
80645119 JB |
4472 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
4473 | modifier_list); | |
0a7f1fc0 JB |
4474 | |
4475 | return modifier_list; | |
4476 | } | |
4477 | ||
4478 | ||
4479 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
4480 | where UNMODIFIED is the unmodified form of SYMBOL, | |
4481 | MASK is the set of modifiers present in SYMBOL's name. | |
4482 | This is similar to parse_modifiers_uncached, but uses the cache in | |
4483 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
4484 | Qevent_symbol_elements property. */ | |
3d31316f | 4485 | |
0a7f1fc0 JB |
4486 | static Lisp_Object |
4487 | parse_modifiers (symbol) | |
4488 | Lisp_Object symbol; | |
4489 | { | |
9b8eb840 | 4490 | Lisp_Object elements; |
0a7f1fc0 | 4491 | |
9b8eb840 | 4492 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
4493 | if (CONSP (elements)) |
4494 | return elements; | |
4495 | else | |
4496 | { | |
4497 | int end; | |
ec0faad2 | 4498 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 4499 | Lisp_Object unmodified; |
0a7f1fc0 JB |
4500 | Lisp_Object mask; |
4501 | ||
9b8eb840 KH |
4502 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
4503 | XSYMBOL (symbol)->name->size - end), | |
4504 | Qnil); | |
4505 | ||
ec0faad2 | 4506 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 4507 | abort (); |
bb9e9bed | 4508 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
4509 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
4510 | ||
4511 | /* Cache the parsing results on SYMBOL. */ | |
4512 | Fput (symbol, Qevent_symbol_element_mask, | |
4513 | elements); | |
4514 | Fput (symbol, Qevent_symbol_elements, | |
4515 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
4516 | ||
4517 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
4518 | it would be nice to put that in unmodified's cache. | |
4519 | But we can't, since we're not sure that parse_modifiers is | |
4520 | canonical. */ | |
4521 | ||
4522 | return elements; | |
4523 | } | |
4524 | } | |
4525 | ||
4526 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
4527 | BASE must be unmodified. | |
4528 | ||
4529 | This is like apply_modifiers_uncached, but uses BASE's | |
4530 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
4531 | Qevent_symbol_elements properties, since it has that info anyway. |
4532 | ||
4533 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
4534 | the modified symbol. */ | |
0a7f1fc0 JB |
4535 | static Lisp_Object |
4536 | apply_modifiers (modifiers, base) | |
4537 | int modifiers; | |
4538 | Lisp_Object base; | |
4539 | { | |
7b4aedb9 | 4540 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 4541 | |
80645119 | 4542 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 4543 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 4544 | |
0a7f1fc0 | 4545 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 4546 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 4547 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 4548 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
4549 | |
4550 | if (CONSP (entry)) | |
7b4aedb9 JB |
4551 | new_symbol = XCONS (entry)->cdr; |
4552 | else | |
4553 | { | |
df0f2ba1 | 4554 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
4555 | new_symbol = apply_modifiers_uncached (modifiers, |
4556 | XSYMBOL (base)->name->data, | |
4557 | XSYMBOL (base)->name->size); | |
4558 | ||
4559 | /* Add the new symbol to the base's cache. */ | |
4560 | entry = Fcons (index, new_symbol); | |
4561 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
4562 | ||
4563 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 4564 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
4565 | Fput (new_symbol, Qevent_symbol_element_mask, |
4566 | Fcons (base, Fcons (index, Qnil))); | |
4567 | Fput (new_symbol, Qevent_symbol_elements, | |
4568 | Fcons (base, lispy_modifier_list (modifiers))); | |
4569 | } | |
0a7f1fc0 | 4570 | |
df0f2ba1 | 4571 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
4572 | |
4573 | You'd think we could just set this once and for all when we | |
4574 | intern the symbol above, but reorder_modifiers may call us when | |
4575 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
4576 | because it has a Qmodifier_cache property it must have its |
4577 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
4578 | if (NILP (Fget (new_symbol, Qevent_kind))) |
4579 | { | |
9b8eb840 | 4580 | Lisp_Object kind; |
7b4aedb9 | 4581 | |
9b8eb840 | 4582 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
4583 | if (! NILP (kind)) |
4584 | Fput (new_symbol, Qevent_kind, kind); | |
4585 | } | |
4586 | ||
4587 | return new_symbol; | |
0a7f1fc0 JB |
4588 | } |
4589 | ||
4590 | ||
4591 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
4592 | return a symbol with the modifiers placed in the canonical order. | |
4593 | Canonical order is alphabetical, except for down and drag, which | |
4594 | always come last. The 'click' modifier is never written out. | |
4595 | ||
4596 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
4597 | and M-C-foo end up being equivalent in the keymap. */ | |
4598 | ||
4599 | Lisp_Object | |
4600 | reorder_modifiers (symbol) | |
4601 | Lisp_Object symbol; | |
4602 | { | |
4603 | /* It's hopefully okay to write the code this way, since everything | |
4604 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 4605 | Lisp_Object parsed; |
0a7f1fc0 | 4606 | |
9b8eb840 | 4607 | parsed = parse_modifiers (symbol); |
54593ed9 | 4608 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
4609 | XCONS (parsed)->car); |
4610 | } | |
4611 | ||
4612 | ||
284f4730 JB |
4613 | /* For handling events, we often want to produce a symbol whose name |
4614 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
4615 | to some base, like the name of a function key or mouse button. | |
4616 | modify_event_symbol produces symbols of this sort. | |
4617 | ||
4618 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
4619 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
4620 | in the table. | |
4621 | ||
80e4aa30 RS |
4622 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
4623 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
4624 | ||
284f4730 JB |
4625 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
4626 | persist between calls to modify_event_symbol that it can use to | |
4627 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 4628 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
4629 | |
4630 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 4631 | |
284f4730 JB |
4632 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
4633 | whose prefixes should be applied to the symbol name. | |
4634 | ||
4635 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 4636 | the returned symbol. |
88cb0656 JB |
4637 | |
4638 | The symbols we create are supposed to have an | |
eb8c3be9 | 4639 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
4640 | in the symbol's name. */ |
4641 | ||
284f4730 | 4642 | static Lisp_Object |
80e4aa30 RS |
4643 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
4644 | name_table, symbol_table, table_size) | |
284f4730 JB |
4645 | int symbol_num; |
4646 | unsigned modifiers; | |
4647 | Lisp_Object symbol_kind; | |
80e4aa30 | 4648 | Lisp_Object name_alist; |
284f4730 JB |
4649 | char **name_table; |
4650 | Lisp_Object *symbol_table; | |
2c834fb3 | 4651 | unsigned int table_size; |
284f4730 | 4652 | { |
80e4aa30 RS |
4653 | Lisp_Object value; |
4654 | Lisp_Object symbol_int; | |
4655 | ||
2c834fb3 KH |
4656 | /* Get rid of the "vendor-specific" bit here. */ |
4657 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
4658 | |
4659 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 4660 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 4661 | return Qnil; |
284f4730 | 4662 | |
80e4aa30 RS |
4663 | if (CONSP (*symbol_table)) |
4664 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
4665 | ||
0a7f1fc0 | 4666 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 4667 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
4668 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
4669 | we've never used that symbol before. */ | |
80e4aa30 | 4670 | else |
88cb0656 | 4671 | { |
80e4aa30 RS |
4672 | if (! VECTORP (*symbol_table) |
4673 | || XVECTOR (*symbol_table)->size != table_size) | |
4674 | { | |
4675 | Lisp_Object size; | |
0a7f1fc0 | 4676 | |
bb9e9bed | 4677 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
4678 | *symbol_table = Fmake_vector (size, Qnil); |
4679 | } | |
284f4730 | 4680 | |
80e4aa30 RS |
4681 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
4682 | } | |
284f4730 | 4683 | |
0a7f1fc0 | 4684 | /* Have we already used this symbol before? */ |
80e4aa30 | 4685 | if (NILP (value)) |
284f4730 | 4686 | { |
0a7f1fc0 | 4687 | /* No; let's create it. */ |
80e4aa30 | 4688 | if (!NILP (name_alist)) |
b64b4075 | 4689 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 4690 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 4691 | value = intern (name_table[symbol_num]); |
b64b4075 | 4692 | |
e98a93eb | 4693 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
4694 | if (NILP (value)) |
4695 | { | |
4696 | char *name = x_get_keysym_name (symbol_num); | |
4697 | if (name) | |
4698 | value = intern (name); | |
4699 | } | |
4700 | #endif | |
4701 | ||
b64b4075 | 4702 | if (NILP (value)) |
d1f50460 RS |
4703 | { |
4704 | char buf[20]; | |
4705 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 4706 | value = intern (buf); |
d1f50460 | 4707 | } |
0a7f1fc0 | 4708 | |
80e4aa30 | 4709 | if (CONSP (*symbol_table)) |
4205cb08 | 4710 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
4711 | else |
4712 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
4713 | ||
df0f2ba1 | 4714 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
4715 | builds the Qevent_symbol_elements property, which the user |
4716 | cares about. */ | |
80e4aa30 RS |
4717 | apply_modifiers (modifiers & click_modifier, value); |
4718 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 4719 | } |
88cb0656 | 4720 | |
0a7f1fc0 | 4721 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 4722 | return apply_modifiers (modifiers, value); |
284f4730 | 4723 | } |
6da3dd3a RS |
4724 | \f |
4725 | /* Convert a list that represents an event type, | |
4726 | such as (ctrl meta backspace), into the usual representation of that | |
4727 | event type as a number or a symbol. */ | |
4728 | ||
a1706c30 | 4729 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
4730 | "Convert the event description list EVENT-DESC to an event type.\n\ |
4731 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 4732 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 4733 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
4734 | The return value is an event type (a character or symbol) which\n\ |
4735 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
4736 | (event_desc) |
4737 | Lisp_Object event_desc; | |
6da3dd3a RS |
4738 | { |
4739 | Lisp_Object base; | |
4740 | int modifiers = 0; | |
4741 | Lisp_Object rest; | |
4742 | ||
4743 | base = Qnil; | |
e57d8fd8 | 4744 | rest = event_desc; |
6da3dd3a RS |
4745 | while (CONSP (rest)) |
4746 | { | |
4747 | Lisp_Object elt; | |
4748 | int this = 0; | |
4749 | ||
4750 | elt = XCONS (rest)->car; | |
377f24f5 | 4751 | rest = XCONS (rest)->cdr; |
6da3dd3a | 4752 | |
3d31316f | 4753 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 4754 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 4755 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
4756 | |
4757 | if (this != 0) | |
4758 | modifiers |= this; | |
4759 | else if (!NILP (base)) | |
4760 | error ("Two bases given in one event"); | |
4761 | else | |
4762 | base = elt; | |
4763 | ||
6da3dd3a RS |
4764 | } |
4765 | ||
3d31316f RS |
4766 | /* Let the symbol A refer to the character A. */ |
4767 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
4768 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
4769 | ||
6da3dd3a RS |
4770 | if (INTEGERP (base)) |
4771 | { | |
3d31316f RS |
4772 | /* Turn (shift a) into A. */ |
4773 | if ((modifiers & shift_modifier) != 0 | |
4774 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
4775 | { | |
4776 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
4777 | modifiers &= ~shift_modifier; | |
4778 | } | |
4779 | ||
4780 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 4781 | if (modifiers & ctrl_modifier) |
3d31316f | 4782 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
4783 | | make_ctrl_char (XINT (base))); |
4784 | else | |
4785 | return make_number (modifiers | XINT (base)); | |
4786 | } | |
4787 | else if (SYMBOLP (base)) | |
4788 | return apply_modifiers (modifiers, base); | |
4789 | else | |
4790 | error ("Invalid base event"); | |
4791 | } | |
4792 | ||
3d31316f RS |
4793 | /* Try to recognize SYMBOL as a modifier name. |
4794 | Return the modifier flag bit, or 0 if not recognized. */ | |
4795 | ||
4796 | static int | |
4797 | parse_solitary_modifier (symbol) | |
4798 | Lisp_Object symbol; | |
4799 | { | |
4800 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
4801 | ||
4802 | switch (name->data[0]) | |
4803 | { | |
4804 | #define SINGLE_LETTER_MOD(BIT) \ | |
4805 | if (name->size == 1) \ | |
4806 | return BIT; | |
4807 | ||
4808 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
4809 | if (LEN == name->size \ | |
4810 | && ! strncmp (name->data, NAME, LEN)) \ | |
4811 | return BIT; | |
4812 | ||
4813 | case 'A': | |
4814 | SINGLE_LETTER_MOD (alt_modifier); | |
4815 | break; | |
4816 | ||
4817 | case 'a': | |
4818 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
4819 | break; | |
4820 | ||
4821 | case 'C': | |
4822 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4823 | break; | |
4824 | ||
4825 | case 'c': | |
4826 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
4827 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
4828 | break; | |
4829 | ||
4830 | case 'H': | |
4831 | SINGLE_LETTER_MOD (hyper_modifier); | |
4832 | break; | |
4833 | ||
4834 | case 'h': | |
4835 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
4836 | break; | |
4837 | ||
4838 | case 'M': | |
4839 | SINGLE_LETTER_MOD (meta_modifier); | |
4840 | break; | |
4841 | ||
4842 | case 'm': | |
4843 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
4844 | break; | |
4845 | ||
4846 | case 'S': | |
4847 | SINGLE_LETTER_MOD (shift_modifier); | |
4848 | break; | |
4849 | ||
4850 | case 's': | |
4851 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
4852 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
4853 | SINGLE_LETTER_MOD (super_modifier); | |
4854 | break; | |
4855 | ||
4856 | case 'd': | |
4857 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
4858 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
4859 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
4860 | break; | |
4861 | ||
4862 | case 't': | |
4863 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
4864 | break; | |
4865 | ||
4866 | #undef SINGLE_LETTER_MOD | |
4867 | #undef MULTI_LETTER_MOD | |
4868 | } | |
4869 | ||
4870 | return 0; | |
4871 | } | |
4872 | ||
6da3dd3a RS |
4873 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
4874 | Such a list is not valid as an event, | |
4875 | but it can be a Lucid-style event type list. */ | |
4876 | ||
4877 | int | |
4878 | lucid_event_type_list_p (object) | |
4879 | Lisp_Object object; | |
4880 | { | |
4881 | Lisp_Object tail; | |
4882 | ||
4883 | if (! CONSP (object)) | |
4884 | return 0; | |
4885 | ||
4886 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
4887 | { | |
4888 | Lisp_Object elt; | |
4889 | elt = XCONS (tail)->car; | |
4890 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
4891 | return 0; | |
4892 | } | |
4893 | ||
4894 | return NILP (tail); | |
4895 | } | |
284f4730 | 4896 | \f |
284f4730 JB |
4897 | /* Store into *addr a value nonzero if terminal input chars are available. |
4898 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
4899 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
4900 | (In fact, this may actually read some input.) |
4901 | ||
4902 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
4903 | |
4904 | static void | |
d9d4c147 | 4905 | get_input_pending (addr, do_timers_now) |
284f4730 | 4906 | int *addr; |
d9d4c147 | 4907 | int do_timers_now; |
284f4730 JB |
4908 | { |
4909 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 4910 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
4911 | |
4912 | /* If input is being read as it arrives, and we have none, there is none. */ | |
4913 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
4914 | return; | |
4915 | ||
4916 | /* Try to read some input and see how much we get. */ | |
4917 | gobble_input (0); | |
d9d4c147 | 4918 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
4919 | } |
4920 | ||
81931ba1 | 4921 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 4922 | |
07a59269 | 4923 | void |
284f4730 JB |
4924 | gobble_input (expected) |
4925 | int expected; | |
4926 | { | |
4927 | #ifndef VMS | |
4928 | #ifdef SIGIO | |
4929 | if (interrupt_input) | |
4930 | { | |
32676c08 | 4931 | SIGMASKTYPE mask; |
4f8aaa74 | 4932 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 4933 | read_avail_input (expected); |
e065a56e | 4934 | sigsetmask (mask); |
284f4730 JB |
4935 | } |
4936 | else | |
81931ba1 RS |
4937 | #ifdef POLL_FOR_INPUT |
4938 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
4939 | { | |
4940 | SIGMASKTYPE mask; | |
4f8aaa74 | 4941 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
4942 | read_avail_input (expected); |
4943 | sigsetmask (mask); | |
4944 | } | |
4945 | else | |
87485d6f | 4946 | #endif |
284f4730 JB |
4947 | #endif |
4948 | read_avail_input (expected); | |
4949 | #endif | |
4950 | } | |
a8015ab5 | 4951 | |
241ceaf7 RS |
4952 | /* Put a buffer_switch_event in the buffer |
4953 | so that read_key_sequence will notice the new current buffer. */ | |
4954 | ||
07a59269 | 4955 | void |
a8015ab5 KH |
4956 | record_asynch_buffer_change () |
4957 | { | |
4958 | struct input_event event; | |
a30f0615 RS |
4959 | Lisp_Object tem; |
4960 | ||
a8015ab5 KH |
4961 | event.kind = buffer_switch_event; |
4962 | event.frame_or_window = Qnil; | |
241ceaf7 | 4963 | |
f65e6f7d | 4964 | #ifdef subprocesses |
a30f0615 RS |
4965 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
4966 | The purpose of the event is to make read_key_sequence look up the | |
4967 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
4968 | and the event could cause trouble by messing up (input-pending-p). */ | |
4969 | tem = Fwaiting_for_user_input_p (); | |
4970 | if (NILP (tem)) | |
4971 | return; | |
f65e6f7d RS |
4972 | #else |
4973 | /* We never need these events if we have no asynchronous subprocesses. */ | |
4974 | return; | |
4975 | #endif | |
a30f0615 | 4976 | |
241ceaf7 RS |
4977 | /* Make sure no interrupt happens while storing the event. */ |
4978 | #ifdef SIGIO | |
4979 | if (interrupt_input) | |
4980 | { | |
4981 | SIGMASKTYPE mask; | |
4f8aaa74 | 4982 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
4983 | kbd_buffer_store_event (&event); |
4984 | sigsetmask (mask); | |
4985 | } | |
4986 | else | |
4987 | #endif | |
4988 | { | |
4989 | stop_polling (); | |
4990 | kbd_buffer_store_event (&event); | |
4991 | start_polling (); | |
4992 | } | |
a8015ab5 | 4993 | } |
284f4730 JB |
4994 | \f |
4995 | #ifndef VMS | |
4996 | ||
4997 | /* Read any terminal input already buffered up by the system | |
4998 | into the kbd_buffer, but do not wait. | |
4999 | ||
5000 | EXPECTED should be nonzero if the caller knows there is some input. | |
5001 | ||
5002 | Except on VMS, all input is read by this function. | |
5003 | If interrupt_input is nonzero, this function MUST be called | |
5004 | only when SIGIO is blocked. | |
5005 | ||
5006 | Returns the number of keyboard chars read, or -1 meaning | |
5007 | this is a bad time to try to read input. */ | |
5008 | ||
5009 | static int | |
5010 | read_avail_input (expected) | |
5011 | int expected; | |
5012 | { | |
5013 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5014 | register int i; | |
5015 | int nread; | |
5016 | ||
5017 | if (read_socket_hook) | |
5018 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5019 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5020 | else |
5021 | { | |
17270835 RS |
5022 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5023 | the kbd_buffer can really hold. That may prevent loss | |
5024 | of characters on some systems when input is stuffed at us. */ | |
5025 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5026 | int n_to_read; |
284f4730 | 5027 | |
58788063 | 5028 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5029 | #ifdef WINDOWSNT |
5030 | return 0; | |
5031 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5032 | #ifdef MSDOS |
58788063 RS |
5033 | n_to_read = dos_keysns (); |
5034 | if (n_to_read == 0) | |
5035 | return 0; | |
c3a2738c | 5036 | #else /* not MSDOS */ |
284f4730 JB |
5037 | #ifdef FIONREAD |
5038 | /* Find out how much input is available. */ | |
437f6112 | 5039 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5040 | /* Formerly simply reported no input, but that sometimes led to |
5041 | a failure of Emacs to terminate. | |
5042 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5043 | /* ??? Is it really right to send the signal just to this process |
5044 | rather than to the whole process group? | |
5045 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5046 | kill (getpid (), SIGHUP); |
58788063 | 5047 | if (n_to_read == 0) |
284f4730 | 5048 | return 0; |
58788063 RS |
5049 | if (n_to_read > sizeof cbuf) |
5050 | n_to_read = sizeof cbuf; | |
284f4730 | 5051 | #else /* no FIONREAD */ |
0c04a67e | 5052 | #if defined (USG) || defined (DGUX) |
284f4730 | 5053 | /* Read some input if available, but don't wait. */ |
58788063 | 5054 | n_to_read = sizeof cbuf; |
437f6112 | 5055 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5056 | #else |
5057 | you lose; | |
5058 | #endif | |
5059 | #endif | |
80e4aa30 | 5060 | #endif /* not MSDOS */ |
bc536d84 | 5061 | #endif /* not WINDOWSNT */ |
284f4730 | 5062 | |
58788063 RS |
5063 | /* Now read; for one reason or another, this will not block. |
5064 | NREAD is set to the number of chars read. */ | |
9134775b | 5065 | do |
284f4730 | 5066 | { |
80e4aa30 | 5067 | #ifdef MSDOS |
0c04a67e | 5068 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5069 | nread = 1; |
5070 | #else | |
437f6112 | 5071 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5072 | #endif |
49854566 RS |
5073 | /* POSIX infers that processes which are not in the session leader's |
5074 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
5075 | this part standard and returns -1 from read(0) with errno==EIO | |
5076 | when the control tty is taken away. | |
5077 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5078 | if (nread == -1 && errno == EIO) | |
5079 | kill (0, SIGHUP); | |
762f2b92 | 5080 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5081 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5082 | This looks incorrect, but it isn't, because _BSD causes | |
5083 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5084 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5085 | if (nread == 0) |
80e4aa30 | 5086 | kill (0, SIGHUP); |
284f4730 | 5087 | #endif |
9134775b | 5088 | } |
791587ee KH |
5089 | while ( |
5090 | /* We used to retry the read if it was interrupted. | |
5091 | But this does the wrong thing when O_NDELAY causes | |
5092 | an EAGAIN error. Does anybody know of a situation | |
5093 | where a retry is actually needed? */ | |
5094 | #if 0 | |
5095 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5096 | #ifdef EFAULT |
9134775b | 5097 | || errno == EFAULT |
80e4aa30 | 5098 | #endif |
284f4730 | 5099 | #ifdef EBADSLT |
9134775b | 5100 | || errno == EBADSLT |
284f4730 | 5101 | #endif |
791587ee KH |
5102 | ) |
5103 | #else | |
5104 | 0 | |
5105 | #endif | |
5106 | ); | |
284f4730 JB |
5107 | |
5108 | #ifndef FIONREAD | |
02c2c53f | 5109 | #if defined (USG) || defined (DGUX) |
437f6112 | 5110 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5111 | #endif /* USG or DGUX */ |
284f4730 JB |
5112 | #endif /* no FIONREAD */ |
5113 | for (i = 0; i < nread; i++) | |
5114 | { | |
5115 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5116 | buf[i].modifiers = 0; |
b04904fb | 5117 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5118 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5119 | if (meta_key != 2) |
5120 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5121 | |
5122 | buf[i].code = cbuf[i]; | |
18cd2eeb | 5123 | XSETFRAME (buf[i].frame_or_window, selected_frame); |
284f4730 JB |
5124 | } |
5125 | } | |
5126 | ||
5127 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5128 | for (i = 0; i < nread; i++) | |
5129 | { | |
5130 | kbd_buffer_store_event (&buf[i]); | |
5131 | /* Don't look at input that follows a C-g too closely. | |
5132 | This reduces lossage due to autorepeat on C-g. */ | |
5133 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5134 | && buf[i].code == quit_char) |
284f4730 JB |
5135 | break; |
5136 | } | |
5137 | ||
5138 | return nread; | |
5139 | } | |
5140 | #endif /* not VMS */ | |
5141 | \f | |
5142 | #ifdef SIGIO /* for entire page */ | |
5143 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5144 | ||
2ce30ea2 | 5145 | SIGTYPE |
284f4730 JB |
5146 | input_available_signal (signo) |
5147 | int signo; | |
5148 | { | |
5149 | /* Must preserve main program's value of errno. */ | |
5150 | int old_errno = errno; | |
5151 | #ifdef BSD4_1 | |
5152 | extern int select_alarmed; | |
5153 | #endif | |
5154 | ||
5970a8cb | 5155 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5156 | /* USG systems forget handlers when they are used; |
5157 | must reestablish each time */ | |
5158 | signal (signo, input_available_signal); | |
5159 | #endif /* USG */ | |
5160 | ||
5161 | #ifdef BSD4_1 | |
5162 | sigisheld (SIGIO); | |
5163 | #endif | |
5164 | ||
ffd56f97 JB |
5165 | if (input_available_clear_time) |
5166 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5167 | |
5168 | while (1) | |
5169 | { | |
5170 | int nread; | |
5171 | nread = read_avail_input (1); | |
5172 | /* -1 means it's not ok to read the input now. | |
5173 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5174 | 0 means there was no keyboard input available. */ | |
5175 | if (nread <= 0) | |
5176 | break; | |
5177 | ||
5178 | #ifdef BSD4_1 | |
5179 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5180 | #endif | |
5181 | } | |
5182 | ||
5183 | #ifdef BSD4_1 | |
5184 | sigfree (); | |
5185 | #endif | |
5186 | errno = old_errno; | |
5187 | } | |
5188 | #endif /* SIGIO */ | |
ad163903 JB |
5189 | |
5190 | /* Send ourselves a SIGIO. | |
5191 | ||
5192 | This function exists so that the UNBLOCK_INPUT macro in | |
5193 | blockinput.h can have some way to take care of input we put off | |
5194 | dealing with, without assuming that every file which uses | |
5195 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5196 | void | |
5197 | reinvoke_input_signal () | |
5198 | { | |
df0f2ba1 | 5199 | #ifdef SIGIO |
87dd9b9b | 5200 | kill (getpid (), SIGIO); |
ad163903 JB |
5201 | #endif |
5202 | } | |
5203 | ||
5204 | ||
284f4730 JB |
5205 | \f |
5206 | /* Return the prompt-string of a sparse keymap. | |
5207 | This is the first element which is a string. | |
5208 | Return nil if there is none. */ | |
5209 | ||
5210 | Lisp_Object | |
5211 | map_prompt (map) | |
5212 | Lisp_Object map; | |
5213 | { | |
5214 | while (CONSP (map)) | |
5215 | { | |
5216 | register Lisp_Object tem; | |
5217 | tem = Fcar (map); | |
8c18cbfb | 5218 | if (STRINGP (tem)) |
284f4730 JB |
5219 | return tem; |
5220 | map = Fcdr (map); | |
5221 | } | |
5222 | return Qnil; | |
5223 | } | |
5224 | ||
b7c49376 RS |
5225 | static void menu_bar_item (); |
5226 | static void menu_bar_one_keymap (); | |
5227 | ||
5228 | /* These variables hold the vector under construction within | |
5229 | menu_bar_items and its subroutines, and the current index | |
5230 | for storing into that vector. */ | |
5231 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5232 | static int menu_bar_items_index; |
5ec75a55 | 5233 | |
b7c49376 RS |
5234 | /* Return a vector of menu items for a menu bar, appropriate |
5235 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5236 | KEY STRING MAPLIST. |
b7c49376 RS |
5237 | |
5238 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5239 | |
5240 | Lisp_Object | |
b7c49376 RS |
5241 | menu_bar_items (old) |
5242 | Lisp_Object old; | |
5ec75a55 RS |
5243 | { |
5244 | /* The number of keymaps we're scanning right now, and the number of | |
5245 | keymaps we have allocated space for. */ | |
5246 | int nmaps; | |
5247 | ||
5248 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5249 | in the current keymaps, or nil where it is not a prefix. */ | |
5250 | Lisp_Object *maps; | |
5251 | ||
9f9c0e27 | 5252 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5253 | |
5254 | Lisp_Object result; | |
5255 | ||
5256 | int mapno; | |
47d319aa | 5257 | Lisp_Object oquit; |
5ec75a55 | 5258 | |
b7c49376 RS |
5259 | int i; |
5260 | ||
5261 | struct gcpro gcpro1; | |
5262 | ||
db60d856 JB |
5263 | /* In order to build the menus, we need to call the keymap |
5264 | accessors. They all call QUIT. But this function is called | |
5265 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5266 | quitting while building the menus. |
5267 | We do this instead of specbind because (1) errors will clear it anyway | |
5268 | and (2) this avoids risk of specpdl overflow. */ | |
5269 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5270 | Vinhibit_quit = Qt; |
db60d856 | 5271 | |
b7c49376 RS |
5272 | if (!NILP (old)) |
5273 | menu_bar_items_vector = old; | |
5274 | else | |
5275 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5276 | menu_bar_items_index = 0; | |
5277 | ||
5278 | GCPRO1 (menu_bar_items_vector); | |
5279 | ||
5ec75a55 RS |
5280 | /* Build our list of keymaps. |
5281 | If we recognize a function key and replace its escape sequence in | |
5282 | keybuf with its symbol, or if the sequence starts with a mouse | |
5283 | click and we need to switch buffers, we jump back here to rebuild | |
5284 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5285 | { |
5ec75a55 RS |
5286 | Lisp_Object *tmaps; |
5287 | ||
217258d5 | 5288 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5289 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5290 | { |
217258d5 KH |
5291 | /* Yes, use them (if non-nil) as well as the global map. */ |
5292 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5293 | nmaps = 0; | |
5294 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5295 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5296 | if (!NILP (Voverriding_local_map)) | |
5297 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5298 | } |
5299 | else | |
5300 | { | |
d0a49716 | 5301 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5302 | nmaps = current_minor_maps (NULL, &tmaps); |
5303 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5304 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 5305 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5306 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 5307 | #else |
217258d5 | 5308 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 5309 | #endif |
9dd3131c | 5310 | } |
217258d5 | 5311 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5312 | } |
5313 | ||
5314 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5315 | ||
5316 | result = Qnil; | |
5317 | ||
e58aa385 | 5318 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5319 | { |
5320 | if (! NILP (maps[mapno])) | |
c6a67acd | 5321 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5322 | else |
5323 | def = Qnil; | |
5324 | ||
5325 | tem = Fkeymapp (def); | |
5326 | if (!NILP (tem)) | |
b7c49376 | 5327 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5328 | } |
5329 | ||
b7c49376 RS |
5330 | /* Move to the end those items that should be at the end. */ |
5331 | ||
9f9c0e27 RS |
5332 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
5333 | { | |
b7c49376 RS |
5334 | int i; |
5335 | int end = menu_bar_items_index; | |
5336 | ||
35b3402f | 5337 | for (i = 0; i < end; i += 4) |
b7c49376 RS |
5338 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) |
5339 | { | |
35b3402f | 5340 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5341 | /* Move the item at index I to the end, |
5342 | shifting all the others forward. */ | |
5343 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5344 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5345 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5346 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5347 | if (end > i + 4) | |
5348 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5349 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5350 | (end - i - 4) * sizeof (Lisp_Object)); |
5351 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5352 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5353 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5354 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5355 | break; |
b7c49376 RS |
5356 | } |
5357 | } | |
9f9c0e27 | 5358 | |
0c9071cd | 5359 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5360 | i = menu_bar_items_index; |
35b3402f | 5361 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5362 | { |
5363 | Lisp_Object tem; | |
5364 | int newsize = 2 * i; | |
5365 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5366 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5367 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5368 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5369 | } |
b7c49376 RS |
5370 | /* Add this item. */ |
5371 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5372 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5373 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5374 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5375 | menu_bar_items_index = i; |
a73c5e29 | 5376 | |
47d319aa | 5377 | Vinhibit_quit = oquit; |
b7c49376 RS |
5378 | UNGCPRO; |
5379 | return menu_bar_items_vector; | |
5ec75a55 RS |
5380 | } |
5381 | \f | |
5382 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5383 | in menu_bar_items_vector. */ |
5ec75a55 | 5384 | |
b7c49376 RS |
5385 | static void |
5386 | menu_bar_one_keymap (keymap) | |
5387 | Lisp_Object keymap; | |
5ec75a55 RS |
5388 | { |
5389 | Lisp_Object tail, item, key, binding, item_string, table; | |
5390 | ||
5391 | /* Loop over all keymap entries that have menu strings. */ | |
8c18cbfb | 5392 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
5393 | { |
5394 | item = XCONS (tail)->car; | |
8c18cbfb | 5395 | if (CONSP (item)) |
5ec75a55 RS |
5396 | { |
5397 | key = XCONS (item)->car; | |
5398 | binding = XCONS (item)->cdr; | |
8c18cbfb | 5399 | if (CONSP (binding)) |
5ec75a55 RS |
5400 | { |
5401 | item_string = XCONS (binding)->car; | |
8c18cbfb | 5402 | if (STRINGP (item_string)) |
b7c49376 | 5403 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 5404 | } |
e58aa385 | 5405 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 5406 | menu_bar_item (key, Qnil, binding); |
5ec75a55 | 5407 | } |
8c18cbfb | 5408 | else if (VECTORP (item)) |
5ec75a55 RS |
5409 | { |
5410 | /* Loop over the char values represented in the vector. */ | |
5411 | int len = XVECTOR (item)->size; | |
5412 | int c; | |
5413 | for (c = 0; c < len; c++) | |
5414 | { | |
5415 | Lisp_Object character; | |
bb9e9bed | 5416 | XSETFASTINT (character, c); |
5ec75a55 | 5417 | binding = XVECTOR (item)->contents[c]; |
8c18cbfb | 5418 | if (CONSP (binding)) |
5ec75a55 RS |
5419 | { |
5420 | item_string = XCONS (binding)->car; | |
8c18cbfb | 5421 | if (STRINGP (item_string)) |
b7c49376 | 5422 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 5423 | } |
e58aa385 | 5424 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 5425 | menu_bar_item (key, Qnil, binding); |
5ec75a55 RS |
5426 | } |
5427 | } | |
5428 | } | |
5ec75a55 RS |
5429 | } |
5430 | ||
047a8ea7 RS |
5431 | /* This is used as the handler when calling internal_condition_case_1. */ |
5432 | ||
5433 | static Lisp_Object | |
5434 | menu_bar_item_1 (arg) | |
5435 | Lisp_Object arg; | |
5436 | { | |
5437 | return Qnil; | |
5438 | } | |
5439 | ||
f5e09c8b RS |
5440 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5441 | If there's already an item for KEY, add this DEF to it. */ | |
5442 | ||
b7c49376 RS |
5443 | static void |
5444 | menu_bar_item (key, item_string, def) | |
5445 | Lisp_Object key, item_string, def; | |
5ec75a55 | 5446 | { |
e58aa385 | 5447 | Lisp_Object tem; |
5ec75a55 | 5448 | Lisp_Object enabled; |
b7c49376 | 5449 | int i; |
5ec75a55 | 5450 | |
210df3bf KH |
5451 | /* Skip menu-bar equiv keys data. */ |
5452 | if (CONSP (def) && CONSP (XCONS (def)->car)) | |
5453 | def = XCONS (def)->cdr; | |
5454 | ||
e58aa385 RS |
5455 | if (EQ (def, Qundefined)) |
5456 | { | |
f5e09c8b | 5457 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 5458 | discard any previously made menu bar item. */ |
b7c49376 | 5459 | |
35b3402f | 5460 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5461 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5462 | { | |
35b3402f RS |
5463 | if (menu_bar_items_index > i + 4) |
5464 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 5465 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5466 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
5467 | menu_bar_items_index -= 4; | |
b7c49376 RS |
5468 | return; |
5469 | } | |
8aa034e1 RS |
5470 | |
5471 | /* If there's no definition for this key yet, | |
5472 | just ignore `undefined'. */ | |
5473 | return; | |
e58aa385 RS |
5474 | } |
5475 | ||
5ec75a55 RS |
5476 | /* See if this entry is enabled. */ |
5477 | enabled = Qt; | |
5478 | ||
8c18cbfb | 5479 | if (SYMBOLP (def)) |
5ec75a55 RS |
5480 | { |
5481 | /* No property, or nil, means enable. | |
5482 | Otherwise, enable if value is not nil. */ | |
5483 | tem = Fget (def, Qmenu_enable); | |
5484 | if (!NILP (tem)) | |
047a8ea7 RS |
5485 | /* (condition-case nil (eval tem) |
5486 | (error nil)) */ | |
5487 | enabled = internal_condition_case_1 (Feval, tem, Qerror, | |
5488 | menu_bar_item_1); | |
5ec75a55 RS |
5489 | } |
5490 | ||
b7c49376 RS |
5491 | /* Ignore this item if it's not enabled. */ |
5492 | if (NILP (enabled)) | |
5493 | return; | |
5ec75a55 | 5494 | |
f5e09c8b | 5495 | /* Find any existing item for this KEY. */ |
35b3402f | 5496 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5497 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5498 | break; | |
5499 | ||
f5e09c8b | 5500 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
5501 | if (i == menu_bar_items_index) |
5502 | { | |
5503 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 5504 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5505 | { |
5506 | Lisp_Object tem; | |
5507 | int newsize = 2 * i; | |
5508 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5509 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5510 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5511 | menu_bar_items_vector = tem; | |
5512 | } | |
5513 | /* Add this item. */ | |
5514 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
5515 | XVECTOR (menu_bar_items_vector)->contents[i++] = item_string; | |
f5e09c8b | 5516 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (def, Qnil); |
35b3402f | 5517 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
5518 | menu_bar_items_index = i; |
5519 | } | |
f5e09c8b RS |
5520 | /* We did find an item for this KEY. Add DEF to its list of maps. */ |
5521 | else | |
5522 | { | |
5523 | Lisp_Object old; | |
5524 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
5525 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (def, old); | |
5526 | } | |
5ec75a55 RS |
5527 | } |
5528 | \f | |
dcc408a0 RS |
5529 | /* Read a character using menus based on maps in the array MAPS. |
5530 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
5531 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
5532 | |
5533 | PREV_EVENT is the previous input event, or nil if we are reading | |
5534 | the first event of a key sequence. | |
5535 | ||
83d68044 | 5536 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 5537 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 5538 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
5539 | |
5540 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 5541 | and the strings associated with various map elements. |
8150596a RS |
5542 | |
5543 | This can be done with X menus or with menus put in the minibuf. | |
5544 | These are done in different ways, depending on how the input will be read. | |
5545 | Menus using X are done after auto-saving in read-char, getting the input | |
5546 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
5547 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 5548 | |
7617111f | 5549 | static Lisp_Object |
8150596a | 5550 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
5551 | int nmaps; |
5552 | Lisp_Object *maps; | |
5553 | Lisp_Object prev_event; | |
5554 | int *used_mouse_menu; | |
284f4730 | 5555 | { |
7d6de002 RS |
5556 | int mapno; |
5557 | register Lisp_Object name; | |
7d6de002 RS |
5558 | Lisp_Object rest, vector; |
5559 | ||
6569cc8d JB |
5560 | if (used_mouse_menu) |
5561 | *used_mouse_menu = 0; | |
284f4730 JB |
5562 | |
5563 | /* Use local over global Menu maps */ | |
5564 | ||
7d6de002 RS |
5565 | if (! menu_prompting) |
5566 | return Qnil; | |
5567 | ||
03361bcc RS |
5568 | /* Optionally disregard all but the global map. */ |
5569 | if (inhibit_local_menu_bar_menus) | |
5570 | { | |
5571 | maps += (nmaps - 1); | |
5572 | nmaps = 1; | |
5573 | } | |
5574 | ||
7d6de002 RS |
5575 | /* Get the menu name from the first map that has one (a prompt string). */ |
5576 | for (mapno = 0; mapno < nmaps; mapno++) | |
5577 | { | |
5578 | name = map_prompt (maps[mapno]); | |
5579 | if (!NILP (name)) | |
5580 | break; | |
5581 | } | |
284f4730 | 5582 | |
7d6de002 | 5583 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 5584 | if (mapno >= nmaps) |
7d6de002 RS |
5585 | return Qnil; |
5586 | ||
1f5b1641 | 5587 | #ifdef HAVE_MENUS |
7d6de002 RS |
5588 | /* If we got to this point via a mouse click, |
5589 | use a real menu for mouse selection. */ | |
5a8d99e0 KH |
5590 | if (EVENT_HAS_PARAMETERS (prev_event) |
5591 | && !EQ (XCONS (prev_event)->car, Qmenu_bar)) | |
7d6de002 RS |
5592 | { |
5593 | /* Display the menu and get the selection. */ | |
5594 | Lisp_Object *realmaps | |
5595 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
5596 | Lisp_Object value; | |
5597 | int nmaps1 = 0; | |
5598 | ||
5599 | /* Use the maps that are not nil. */ | |
5600 | for (mapno = 0; mapno < nmaps; mapno++) | |
5601 | if (!NILP (maps[mapno])) | |
5602 | realmaps[nmaps1++] = maps[mapno]; | |
5603 | ||
5604 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
5605 | if (CONSP (value)) |
5606 | { | |
68f297c5 RS |
5607 | Lisp_Object tem; |
5608 | ||
8eb4d8ef RS |
5609 | record_menu_key (XCONS (value)->car); |
5610 | ||
68f297c5 RS |
5611 | /* If we got multiple events, unread all but |
5612 | the first. | |
5613 | There is no way to prevent those unread events | |
5614 | from showing up later in last_nonmenu_event. | |
5615 | So turn symbol and integer events into lists, | |
5616 | to indicate that they came from a mouse menu, | |
5617 | so that when present in last_nonmenu_event | |
5618 | they won't confuse things. */ | |
5619 | for (tem = XCONS (value)->cdr; !NILP (tem); | |
5620 | tem = XCONS (tem)->cdr) | |
8eb4d8ef RS |
5621 | { |
5622 | record_menu_key (XCONS (tem)->car); | |
5623 | if (SYMBOLP (XCONS (tem)->car) | |
5624 | || INTEGERP (XCONS (tem)->car)) | |
5625 | XCONS (tem)->car | |
5626 | = Fcons (XCONS (tem)->car, Qnil); | |
5627 | } | |
68f297c5 | 5628 | |
663258f2 JB |
5629 | /* If we got more than one event, put all but the first |
5630 | onto this list to be read later. | |
5631 | Return just the first event now. */ | |
24597608 RS |
5632 | Vunread_command_events |
5633 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
5634 | value = XCONS (value)->car; |
5635 | } | |
1c90c381 | 5636 | else if (NILP (value)) |
dcc408a0 | 5637 | value = Qt; |
6569cc8d JB |
5638 | if (used_mouse_menu) |
5639 | *used_mouse_menu = 1; | |
7d6de002 RS |
5640 | return value; |
5641 | } | |
1f5b1641 | 5642 | #endif /* HAVE_MENUS */ |
8150596a RS |
5643 | return Qnil ; |
5644 | } | |
5645 | ||
68e0de82 RS |
5646 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
5647 | We make this bigger when necessary, and never free it. */ | |
5648 | static char *read_char_minibuf_menu_text; | |
5649 | /* Size of that buffer. */ | |
5650 | static int read_char_minibuf_menu_width; | |
5651 | ||
8150596a | 5652 | static Lisp_Object |
24597608 | 5653 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
5654 | int commandflag ; |
5655 | int nmaps; | |
5656 | Lisp_Object *maps; | |
5657 | { | |
5658 | int mapno; | |
5659 | register Lisp_Object name; | |
5660 | int nlength; | |
5661 | int width = FRAME_WIDTH (selected_frame) - 4; | |
8150596a | 5662 | int idx = -1; |
9fdbfdf8 | 5663 | int nobindings = 1; |
8150596a | 5664 | Lisp_Object rest, vector; |
68e0de82 | 5665 | char *menu; |
8150596a RS |
5666 | |
5667 | if (! menu_prompting) | |
5668 | return Qnil; | |
5669 | ||
68e0de82 RS |
5670 | /* Make sure we have a big enough buffer for the menu text. */ |
5671 | if (read_char_minibuf_menu_text == 0) | |
5672 | { | |
5673 | read_char_minibuf_menu_width = width + 4; | |
5674 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
5675 | } | |
5676 | else if (width + 4 > read_char_minibuf_menu_width) | |
5677 | { | |
5678 | read_char_minibuf_menu_width = width + 4; | |
5679 | read_char_minibuf_menu_text | |
5680 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
5681 | } | |
5682 | menu = read_char_minibuf_menu_text; | |
5683 | ||
8150596a RS |
5684 | /* Get the menu name from the first map that has one (a prompt string). */ |
5685 | for (mapno = 0; mapno < nmaps; mapno++) | |
5686 | { | |
5687 | name = map_prompt (maps[mapno]); | |
5688 | if (!NILP (name)) | |
5689 | break; | |
5690 | } | |
5691 | ||
5692 | /* If we don't have any menus, just read a character normally. */ | |
5693 | if (mapno >= nmaps) | |
5694 | return Qnil; | |
284f4730 JB |
5695 | |
5696 | /* Prompt string always starts with map's prompt, and a space. */ | |
5697 | strcpy (menu, XSTRING (name)->data); | |
5698 | nlength = XSTRING (name)->size; | |
7d6de002 | 5699 | menu[nlength++] = ':'; |
284f4730 JB |
5700 | menu[nlength++] = ' '; |
5701 | menu[nlength] = 0; | |
5702 | ||
7d6de002 RS |
5703 | /* Start prompting at start of first map. */ |
5704 | mapno = 0; | |
5705 | rest = maps[mapno]; | |
284f4730 JB |
5706 | |
5707 | /* Present the documented bindings, a line at a time. */ | |
5708 | while (1) | |
5709 | { | |
5710 | int notfirst = 0; | |
5711 | int i = nlength; | |
5712 | Lisp_Object obj; | |
5713 | int ch; | |
8066f1a1 | 5714 | Lisp_Object orig_defn_macro; |
284f4730 | 5715 | |
284f4730 | 5716 | /* Loop over elements of map. */ |
7d6de002 | 5717 | while (i < width) |
284f4730 | 5718 | { |
7d6de002 | 5719 | Lisp_Object s, elt; |
284f4730 | 5720 | |
7d6de002 RS |
5721 | /* If reached end of map, start at beginning of next map. */ |
5722 | if (NILP (rest)) | |
5723 | { | |
5724 | mapno++; | |
5725 | /* At end of last map, wrap around to first map if just starting, | |
5726 | or end this line if already have something on it. */ | |
5727 | if (mapno == nmaps) | |
284f4730 | 5728 | { |
8150596a | 5729 | mapno = 0; |
40932d1a | 5730 | if (notfirst || nobindings) break; |
284f4730 | 5731 | } |
7d6de002 | 5732 | rest = maps[mapno]; |
284f4730 | 5733 | } |
7d6de002 RS |
5734 | |
5735 | /* Look at the next element of the map. */ | |
5736 | if (idx >= 0) | |
5737 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 5738 | else |
7d6de002 RS |
5739 | elt = Fcar_safe (rest); |
5740 | ||
8c18cbfb | 5741 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 5742 | { |
7d6de002 RS |
5743 | /* If we found a dense table in the keymap, |
5744 | advanced past it, but start scanning its contents. */ | |
5745 | rest = Fcdr_safe (rest); | |
5746 | vector = elt; | |
5747 | idx = 0; | |
284f4730 | 5748 | } |
7d6de002 RS |
5749 | else |
5750 | { | |
5751 | /* An ordinary element. */ | |
0a2ea221 KH |
5752 | Lisp_Object event; |
5753 | ||
5754 | if (idx < 0) | |
5755 | { | |
5756 | s = Fcar_safe (Fcdr_safe (elt)); /* alist */ | |
5757 | event = Fcar_safe (elt); | |
5758 | } | |
8150596a | 5759 | else |
7d6de002 | 5760 | { |
0a2ea221 KH |
5761 | s = Fcar_safe (elt); /* vector */ |
5762 | XSETINT (event, idx); | |
5763 | } | |
5764 | ||
5765 | /* Ignore the element if it has no prompt string. */ | |
5766 | if (STRINGP (s) && INTEGERP (event)) | |
5767 | { | |
5768 | /* 1 if the char to type matches the string. */ | |
5769 | int char_matches; | |
5770 | Lisp_Object upcased_event, downcased_event; | |
5771 | Lisp_Object desc; | |
5772 | ||
5773 | upcased_event = Fupcase (event); | |
5774 | downcased_event = Fdowncase (event); | |
5775 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
5776 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
5777 | if (! char_matches) | |
5778 | desc = Fsingle_key_description (event); | |
5779 | ||
5780 | /* If we have room for the prompt string, add it to this line. | |
5781 | If this is the first on the line, always add it. */ | |
5782 | if ((XSTRING (s)->size + i + 2 | |
5783 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
5784 | < width | |
5785 | || !notfirst) | |
5786 | { | |
5787 | int thiswidth; | |
5788 | ||
5789 | /* Punctuate between strings. */ | |
5790 | if (notfirst) | |
5791 | { | |
5792 | strcpy (menu + i, ", "); | |
5793 | i += 2; | |
5794 | } | |
5795 | notfirst = 1; | |
5796 | nobindings = 0 ; | |
284f4730 | 5797 | |
0a2ea221 KH |
5798 | /* If the char to type doesn't match the string's |
5799 | first char, explicitly show what char to type. */ | |
5800 | if (! char_matches) | |
5801 | { | |
5802 | /* Add as much of string as fits. */ | |
5803 | thiswidth = XSTRING (desc)->size; | |
5804 | if (thiswidth + i > width) | |
5805 | thiswidth = width - i; | |
5806 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
5807 | i += thiswidth; | |
5808 | strcpy (menu + i, " = "); | |
5809 | i += 3; | |
5810 | } | |
5811 | ||
5812 | /* Add as much of string as fits. */ | |
5813 | thiswidth = XSTRING (s)->size; | |
5814 | if (thiswidth + i > width) | |
5815 | thiswidth = width - i; | |
5816 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
5817 | i += thiswidth; | |
5818 | menu[i] = 0; | |
5819 | } | |
5820 | else | |
7d6de002 | 5821 | { |
0a2ea221 KH |
5822 | /* If this element does not fit, end the line now, |
5823 | and save the element for the next line. */ | |
5824 | strcpy (menu + i, "..."); | |
5825 | break; | |
7d6de002 | 5826 | } |
7d6de002 RS |
5827 | } |
5828 | ||
5829 | /* Move past this element. */ | |
8150596a | 5830 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
5831 | /* Handle reaching end of dense table. */ |
5832 | idx = -1; | |
5833 | if (idx >= 0) | |
5834 | idx++; | |
5835 | else | |
5836 | rest = Fcdr_safe (rest); | |
5837 | } | |
284f4730 JB |
5838 | } |
5839 | ||
5840 | /* Prompt with that and read response. */ | |
5841 | message1 (menu); | |
8150596a | 5842 | |
df0f2ba1 | 5843 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
5844 | is pressed. Help characters are not recorded because menu prompting |
5845 | is not used on replay. | |
5846 | */ | |
c5fdd383 KH |
5847 | orig_defn_macro = current_kboard->defining_kbd_macro; |
5848 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
5849 | do |
5850 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 5851 | while (BUFFERP (obj)); |
c5fdd383 | 5852 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 5853 | |
8c18cbfb | 5854 | if (!INTEGERP (obj)) |
284f4730 JB |
5855 | return obj; |
5856 | else | |
5857 | ch = XINT (obj); | |
5858 | ||
f4255cd1 | 5859 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 5860 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 5861 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 5862 | { |
c5fdd383 | 5863 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 5864 | store_kbd_macro_char (obj); |
8150596a RS |
5865 | return obj; |
5866 | } | |
5867 | /* Help char - go round again */ | |
284f4730 JB |
5868 | } |
5869 | } | |
284f4730 JB |
5870 | \f |
5871 | /* Reading key sequences. */ | |
5872 | ||
5873 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
5874 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
5875 | keymap, or nil otherwise. Return the index of the first keymap in | |
5876 | which KEY has any binding, or NMAPS if no map has a binding. | |
5877 | ||
5878 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
5879 | followed by the corresponding non-meta character. Keymaps in | |
5880 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
5881 | NEXT. | |
5882 | ||
88cb0656 JB |
5883 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
5884 | unmodified. | |
5885 | ||
569871d2 | 5886 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
5887 | |
5888 | static int | |
4e50f26a | 5889 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
5890 | Lisp_Object key; |
5891 | Lisp_Object *current, *defs, *next; | |
5892 | int nmaps; | |
5893 | { | |
5894 | int i, first_binding; | |
569871d2 | 5895 | int did_meta = 0; |
284f4730 JB |
5896 | |
5897 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
5898 | followed by the corresponding non-meta character. |
5899 | Put the results into DEFS, since we are going to alter that anyway. | |
5900 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 5901 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
5902 | { |
5903 | for (i = 0; i < nmaps; i++) | |
5904 | if (! NILP (current[i])) | |
5905 | { | |
569871d2 RS |
5906 | Lisp_Object def; |
5907 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 5908 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
5909 | |
5910 | /* Note that since we pass the resulting bindings through | |
5911 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
5912 | disappear. */ | |
569871d2 | 5913 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
5914 | } |
5915 | else | |
569871d2 | 5916 | defs[i] = Qnil; |
284f4730 | 5917 | |
569871d2 | 5918 | did_meta = 1; |
18cd2eeb | 5919 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
5920 | } |
5921 | ||
5922 | first_binding = nmaps; | |
5923 | for (i = nmaps - 1; i >= 0; i--) | |
5924 | { | |
5925 | if (! NILP (current[i])) | |
5926 | { | |
569871d2 RS |
5927 | Lisp_Object map; |
5928 | if (did_meta) | |
5929 | map = defs[i]; | |
5930 | else | |
5931 | map = current[i]; | |
5932 | ||
c6a67acd | 5933 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
5934 | if (! NILP (defs[i])) |
5935 | first_binding = i; | |
5936 | } | |
5937 | else | |
5938 | defs[i] = Qnil; | |
5939 | } | |
5940 | ||
284f4730 | 5941 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
5942 | if (first_binding < nmaps) |
5943 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 5944 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
5945 | |
5946 | return first_binding; | |
5947 | } | |
5948 | ||
df0f2ba1 | 5949 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
5950 | storing it in KEYBUF, a buffer of size BUFSIZE. |
5951 | Prompt with PROMPT. | |
284f4730 | 5952 | Return the length of the key sequence stored. |
dcc408a0 | 5953 | Return -1 if the user rejected a command menu. |
284f4730 | 5954 | |
f4255cd1 JB |
5955 | Echo starting immediately unless `prompt' is 0. |
5956 | ||
5957 | Where a key sequence ends depends on the currently active keymaps. | |
5958 | These include any minor mode keymaps active in the current buffer, | |
5959 | the current buffer's local map, and the global map. | |
5960 | ||
5961 | If a key sequence has no other bindings, we check Vfunction_key_map | |
5962 | to see if some trailing subsequence might be the beginning of a | |
5963 | function key's sequence. If so, we try to read the whole function | |
5964 | key, and substitute its symbolic name into the key sequence. | |
5965 | ||
fbcd35bd JB |
5966 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
5967 | `double-' events into similar click events, if that would make them | |
5968 | bound. We try to turn `triple-' events first into `double-' events, | |
5969 | then into clicks. | |
f4255cd1 JB |
5970 | |
5971 | If we get a mouse click in a mode line, vertical divider, or other | |
5972 | non-text area, we treat the click as if it were prefixed by the | |
5973 | symbol denoting that area - `mode-line', `vertical-line', or | |
5974 | whatever. | |
5975 | ||
5976 | If the sequence starts with a mouse click, we read the key sequence | |
5977 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 5978 | |
f4255cd1 JB |
5979 | If the user switches frames in the midst of a key sequence, we put |
5980 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
5981 | read_char will return it. |
5982 | ||
5983 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
5984 | from the selected window's buffer. */ | |
48e416d4 | 5985 | |
284f4730 | 5986 | static int |
ce98e608 | 5987 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 5988 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
5989 | Lisp_Object *keybuf; |
5990 | int bufsize; | |
84d91fda | 5991 | Lisp_Object prompt; |
309b0fc8 | 5992 | int dont_downcase_last; |
ce98e608 | 5993 | int can_return_switch_frame; |
f571ae0d | 5994 | int fix_current_buffer; |
284f4730 | 5995 | { |
f4255cd1 JB |
5996 | int count = specpdl_ptr - specpdl; |
5997 | ||
284f4730 JB |
5998 | /* How many keys there are in the current key sequence. */ |
5999 | int t; | |
6000 | ||
284f4730 JB |
6001 | /* The length of the echo buffer when we started reading, and |
6002 | the length of this_command_keys when we started reading. */ | |
6003 | int echo_start; | |
f4255cd1 | 6004 | int keys_start; |
284f4730 JB |
6005 | |
6006 | /* The number of keymaps we're scanning right now, and the number of | |
6007 | keymaps we have allocated space for. */ | |
6008 | int nmaps; | |
6009 | int nmaps_allocated = 0; | |
6010 | ||
284f4730 JB |
6011 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
6012 | the current keymaps. */ | |
6013 | Lisp_Object *defs; | |
6014 | ||
f4255cd1 JB |
6015 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
6016 | in the current keymaps, or nil where it is not a prefix. */ | |
6017 | Lisp_Object *submaps; | |
6018 | ||
e0dff5f6 RS |
6019 | /* The local map to start out with at start of key sequence. */ |
6020 | Lisp_Object orig_local_map; | |
6021 | ||
6022 | /* 1 if we have already considered switching to the local-map property | |
6023 | of the place where a mouse click occurred. */ | |
6024 | int localized_local_map = 0; | |
6025 | ||
f4255cd1 JB |
6026 | /* The index in defs[] of the first keymap that has a binding for |
6027 | this key sequence. In other words, the lowest i such that | |
6028 | defs[i] is non-nil. */ | |
284f4730 JB |
6029 | int first_binding; |
6030 | ||
f4255cd1 | 6031 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
6032 | input key. |
6033 | ||
6034 | We use this to recover after recognizing a function key. Once we | |
6035 | realize that a suffix of the current key sequence is actually a | |
6036 | function key's escape sequence, we replace the suffix with the | |
6037 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
6038 | contains a new and different key sequence, so the echo area, |
6039 | this_command_keys, and the submaps and defs arrays are wrong. In | |
6040 | this situation, we set mock_input to t, set t to 0, and jump to | |
6041 | restart_sequence; the loop will read keys from keybuf up until | |
6042 | mock_input, thus rebuilding the state; and then it will resume | |
6043 | reading characters from the keyboard. */ | |
284f4730 JB |
6044 | int mock_input = 0; |
6045 | ||
253598e4 | 6046 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
6047 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
6048 | and fkey_map is its binding. | |
253598e4 | 6049 | |
f4255cd1 JB |
6050 | These might be > t, indicating that all function key scanning |
6051 | should hold off until t reaches them. We do this when we've just | |
6052 | recognized a function key, to avoid searching for the function | |
6053 | key's again in Vfunction_key_map. */ | |
284f4730 | 6054 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 6055 | Lisp_Object fkey_map; |
284f4730 | 6056 | |
a612e298 RS |
6057 | /* Likewise, for key_translation_map. */ |
6058 | int keytran_start = 0, keytran_end = 0; | |
6059 | Lisp_Object keytran_map; | |
6060 | ||
cd21b839 JB |
6061 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
6062 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 6063 | Lisp_Object delayed_switch_frame; |
cd21b839 | 6064 | |
51763820 BF |
6065 | /* See the comment below... */ |
6066 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 6067 | Lisp_Object first_event; |
51763820 | 6068 | #endif |
4efda7dd | 6069 | |
309b0fc8 RS |
6070 | Lisp_Object original_uppercase; |
6071 | int original_uppercase_position = -1; | |
6072 | ||
bc536d84 | 6073 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 6074 | int dummyflag = 0; |
bc536d84 | 6075 | |
3b9189f8 RS |
6076 | struct buffer *starting_buffer; |
6077 | ||
e9bf89a0 RS |
6078 | /* Nonzero if we seem to have got the beginning of a binding |
6079 | in function_key_map. */ | |
6080 | int function_key_possible = 0; | |
00a78037 | 6081 | int key_translation_possible = 0; |
e9bf89a0 | 6082 | |
3fe8e9a2 RS |
6083 | /* Save the status of key translation before each step, |
6084 | so that we can restore this after downcasing. */ | |
6085 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
6086 | int prev_fkey_start; |
6087 | int prev_fkey_end; | |
3fe8e9a2 RS |
6088 | |
6089 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
6090 | int prev_keytran_start; |
6091 | int prev_keytran_end; | |
3fe8e9a2 | 6092 | |
4efda7dd RS |
6093 | int junk; |
6094 | ||
6095 | last_nonmenu_event = Qnil; | |
6096 | ||
6097 | delayed_switch_frame = Qnil; | |
6098 | fkey_map = Vfunction_key_map; | |
a612e298 | 6099 | keytran_map = Vkey_translation_map; |
f4255cd1 | 6100 | |
a612e298 | 6101 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
6102 | if (NILP (Fkeymapp (Vfunction_key_map))) |
6103 | fkey_start = fkey_end = bufsize + 1; | |
6104 | ||
a612e298 RS |
6105 | /* If there is no key-translation-map, turn off scanning. */ |
6106 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
6107 | keytran_start = keytran_end = bufsize + 1; | |
6108 | ||
284f4730 JB |
6109 | if (INTERACTIVE) |
6110 | { | |
84d91fda RS |
6111 | if (!NILP (prompt)) |
6112 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 6113 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
6114 | /* This doesn't put in a dash if the echo buffer is empty, so |
6115 | you don't always see a dash hanging out in the minibuffer. */ | |
6116 | echo_dash (); | |
284f4730 JB |
6117 | } |
6118 | ||
f4255cd1 JB |
6119 | /* Record the initial state of the echo area and this_command_keys; |
6120 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 6121 | if (INTERACTIVE) |
df0f2ba1 | 6122 | echo_start = echo_length (); |
f4255cd1 | 6123 | keys_start = this_command_key_count; |
6321824f | 6124 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 6125 | |
51763820 BF |
6126 | #if defined (GOBBLE_FIRST_EVENT) |
6127 | /* This doesn't quite work, because some of the things that read_char | |
6128 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 6129 | this work right. */ |
51763820 | 6130 | |
4efda7dd RS |
6131 | /* Read the first char of the sequence specially, before setting |
6132 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 6133 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 6134 | &junk); |
51763820 | 6135 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 6136 | |
e0dff5f6 RS |
6137 | orig_local_map = get_local_map (PT, current_buffer); |
6138 | ||
7b4aedb9 JB |
6139 | /* We jump here when the key sequence has been thoroughly changed, and |
6140 | we need to rescan it starting from the beginning. When we jump here, | |
6141 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 6142 | replay_sequence: |
7b4aedb9 | 6143 | |
3b9189f8 | 6144 | starting_buffer = current_buffer; |
e9bf89a0 | 6145 | function_key_possible = 0; |
00a78037 | 6146 | key_translation_possible = 0; |
3b9189f8 | 6147 | |
f4255cd1 | 6148 | /* Build our list of keymaps. |
07d2b8de JB |
6149 | If we recognize a function key and replace its escape sequence in |
6150 | keybuf with its symbol, or if the sequence starts with a mouse | |
6151 | click and we need to switch buffers, we jump back here to rebuild | |
6152 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6153 | { |
284f4730 JB |
6154 | Lisp_Object *maps; |
6155 | ||
217258d5 KH |
6156 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
6157 | || !NILP (Voverriding_local_map)) | |
284f4730 | 6158 | { |
217258d5 | 6159 | if (3 > nmaps_allocated) |
9dd3131c | 6160 | { |
217258d5 KH |
6161 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
6162 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
6163 | nmaps_allocated = 3; | |
9dd3131c | 6164 | } |
217258d5 KH |
6165 | nmaps = 0; |
6166 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6167 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6168 | if (!NILP (Voverriding_local_map)) | |
6169 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 6170 | } |
9dd3131c RS |
6171 | else |
6172 | { | |
217258d5 KH |
6173 | nmaps = current_minor_maps (0, &maps); |
6174 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 6175 | { |
217258d5 KH |
6176 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
6177 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
6178 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 6179 | } |
217258d5 | 6180 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 6181 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 6182 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 6183 | #else |
217258d5 | 6184 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 6185 | #endif |
9dd3131c | 6186 | } |
217258d5 | 6187 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
6188 | } |
6189 | ||
6190 | /* Find an accurate initial value for first_binding. */ | |
6191 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 6192 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
6193 | break; |
6194 | ||
3b9189f8 | 6195 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
6196 | t = 0; |
6197 | ||
6198 | /* These are no-ops the first time through, but if we restart, they | |
6199 | revert the echo area and this_command_keys to their original state. */ | |
6200 | this_command_key_count = keys_start; | |
df0f2ba1 | 6201 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
6202 | echo_truncate (echo_start); |
6203 | ||
cca310da JB |
6204 | /* If the best binding for the current key sequence is a keymap, or |
6205 | we may be looking at a function key's escape sequence, keep on | |
6206 | reading. */ | |
253598e4 | 6207 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
6208 | || (first_binding >= nmaps |
6209 | && fkey_start < t | |
6210 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 6211 | && mock_input <= fkey_start) |
0d882d52 KH |
6212 | || (first_binding >= nmaps |
6213 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
6214 | /* Don't return in the middle of a possible function key sequence, |
6215 | if the only bindings we found were via case conversion. | |
6216 | Thus, if ESC O a has a function-key-map translation | |
6217 | and ESC o has a binding, don't return after ESC O, | |
6218 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 6219 | ) |
284f4730 JB |
6220 | { |
6221 | Lisp_Object key; | |
7d6de002 | 6222 | int used_mouse_menu = 0; |
284f4730 | 6223 | |
7b4aedb9 JB |
6224 | /* Where the last real key started. If we need to throw away a |
6225 | key that has expanded into more than one element of keybuf | |
6226 | (say, a mouse click on the mode line which is being treated | |
6227 | as [mode-line (mouse-...)], then we backtrack to this point | |
6228 | of keybuf. */ | |
6229 | int last_real_key_start; | |
6230 | ||
0a7f1fc0 JB |
6231 | /* These variables are analogous to echo_start and keys_start; |
6232 | while those allow us to restart the entire key sequence, | |
6233 | echo_local_start and keys_local_start allow us to throw away | |
6234 | just one key. */ | |
f4255cd1 JB |
6235 | int echo_local_start, keys_local_start, local_first_binding; |
6236 | ||
284f4730 | 6237 | if (t >= bufsize) |
3fe8e9a2 | 6238 | error ("Key sequence too long"); |
284f4730 | 6239 | |
f4255cd1 JB |
6240 | if (INTERACTIVE) |
6241 | echo_local_start = echo_length (); | |
6242 | keys_local_start = this_command_key_count; | |
6243 | local_first_binding = first_binding; | |
df0f2ba1 | 6244 | |
f4255cd1 | 6245 | replay_key: |
0a7f1fc0 | 6246 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
6247 | jumped back up to replay_key; in that case, these restore the |
6248 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 6249 | loop. */ |
40932d1a | 6250 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 6251 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
6252 | this_command_key_count = keys_local_start; |
6253 | first_binding = local_first_binding; | |
6254 | ||
7e85b935 RS |
6255 | /* By default, assume each event is "real". */ |
6256 | last_real_key_start = t; | |
6257 | ||
f4255cd1 | 6258 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
6259 | if (t < mock_input) |
6260 | { | |
6261 | key = keybuf[t]; | |
6262 | add_command_key (key); | |
a98ea3f9 RS |
6263 | if (echo_keystrokes) |
6264 | echo_char (key); | |
284f4730 | 6265 | } |
253598e4 JB |
6266 | |
6267 | /* If not, we should actually read a character. */ | |
284f4730 JB |
6268 | else |
6269 | { | |
a6d53864 RS |
6270 | struct buffer *buf = current_buffer; |
6271 | ||
beecf6a1 | 6272 | { |
c5fdd383 KH |
6273 | #ifdef MULTI_KBOARD |
6274 | KBOARD *interrupted_kboard = current_kboard; | |
df0f2ba1 | 6275 | struct frame *interrupted_frame = selected_frame; |
c5fdd383 | 6276 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 6277 | { |
5798cf15 KH |
6278 | if (!NILP (delayed_switch_frame)) |
6279 | { | |
c5fdd383 | 6280 | interrupted_kboard->kbd_queue |
5798cf15 | 6281 | = Fcons (delayed_switch_frame, |
c5fdd383 | 6282 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
6283 | delayed_switch_frame = Qnil; |
6284 | } | |
beecf6a1 | 6285 | while (t > 0) |
c5fdd383 KH |
6286 | interrupted_kboard->kbd_queue |
6287 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
6288 | |
6289 | /* If the side queue is non-empty, ensure it begins with a | |
6290 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
6291 | if (CONSP (interrupted_kboard->kbd_queue) |
6292 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
6293 | !(EVENT_HAS_PARAMETERS (key) |
6294 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
6295 | Qswitch_frame)))) | |
df0f2ba1 KH |
6296 | { |
6297 | Lisp_Object frame; | |
6298 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 6299 | interrupted_kboard->kbd_queue |
df0f2ba1 | 6300 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 6301 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 6302 | } |
beecf6a1 | 6303 | mock_input = 0; |
a6e0153c | 6304 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
6305 | goto replay_sequence; |
6306 | } | |
bded54dd | 6307 | #endif |
beecf6a1 KH |
6308 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
6309 | &used_mouse_menu); | |
6310 | } | |
284f4730 | 6311 | |
dcc408a0 RS |
6312 | /* read_char returns t when it shows a menu and the user rejects it. |
6313 | Just return -1. */ | |
6314 | if (EQ (key, Qt)) | |
6315 | return -1; | |
6316 | ||
f4255cd1 | 6317 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
6318 | Emacs 18 handles this by returning immediately with a |
6319 | zero, so that's what we'll do. */ | |
8c18cbfb | 6320 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 6321 | { |
f4255cd1 | 6322 | t = 0; |
bc536d84 RS |
6323 | /* The Microsoft C compiler can't handle the goto that |
6324 | would go here. */ | |
309b0fc8 | 6325 | dummyflag = 1; |
bc536d84 | 6326 | break; |
cd21b839 | 6327 | } |
df0f2ba1 | 6328 | |
3cb81011 KH |
6329 | /* If the current buffer has been changed from under us, the |
6330 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 6331 | if (BUFFERP (key)) |
3cb81011 KH |
6332 | { |
6333 | mock_input = t; | |
f571ae0d RS |
6334 | /* Reset the current buffer from the selected window |
6335 | in case something changed the former and not the latter. | |
6336 | This is to be more consistent with the behavior | |
6337 | of the command_loop_1. */ | |
6338 | if (fix_current_buffer) | |
6339 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
6340 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
6341 | ||
a6e0153c | 6342 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
6343 | goto replay_sequence; |
6344 | } | |
6345 | ||
3b9189f8 RS |
6346 | /* If we have a quit that was typed in another frame, and |
6347 | quit_throw_to_read_char switched buffers, | |
6348 | replay to get the right keymap. */ | |
9343ab07 | 6349 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 RS |
6350 | { |
6351 | keybuf[t++] = key; | |
6352 | mock_input = t; | |
6353 | Vquit_flag = Qnil; | |
a6e0153c | 6354 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
6355 | goto replay_sequence; |
6356 | } | |
3cb81011 | 6357 | |
284f4730 | 6358 | Vquit_flag = Qnil; |
7e85b935 | 6359 | } |
284f4730 | 6360 | |
df0f2ba1 | 6361 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
6362 | in their CHAR-ADDRESS field. For example, a click on |
6363 | the mode line is prefixed by the symbol `mode-line'. | |
6364 | ||
6365 | Furthermore, key sequences beginning with mouse clicks | |
6366 | are read using the keymaps of the buffer clicked on, not | |
6367 | the current buffer. So we may have to switch the buffer | |
6368 | here. | |
6369 | ||
6370 | When we turn one event into two events, we must make sure | |
6371 | that neither of the two looks like the original--so that, | |
6372 | if we replay the events, they won't be expanded again. | |
6373 | If not for this, such reexpansion could happen either here | |
6374 | or when user programs play with this-command-keys. */ | |
6375 | if (EVENT_HAS_PARAMETERS (key)) | |
6376 | { | |
9b8eb840 | 6377 | Lisp_Object kind; |
cca310da | 6378 | |
9b8eb840 | 6379 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 6380 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 6381 | { |
9b8eb840 | 6382 | Lisp_Object window, posn; |
f4255cd1 | 6383 | |
9b8eb840 KH |
6384 | window = POSN_WINDOW (EVENT_START (key)); |
6385 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
8c18cbfb | 6386 | if (CONSP (posn)) |
0a7f1fc0 | 6387 | { |
7e85b935 RS |
6388 | /* We're looking at the second event of a |
6389 | sequence which we expanded before. Set | |
6390 | last_real_key_start appropriately. */ | |
6391 | if (t > 0) | |
6392 | last_real_key_start = t - 1; | |
cd21b839 | 6393 | } |
7e85b935 RS |
6394 | |
6395 | /* Key sequences beginning with mouse clicks are | |
6396 | read using the keymaps in the buffer clicked on, | |
6397 | not the current buffer. If we're at the | |
6398 | beginning of a key sequence, switch buffers. */ | |
6399 | if (last_real_key_start == 0 | |
8c18cbfb KH |
6400 | && WINDOWP (window) |
6401 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 6402 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 6403 | { |
7e85b935 RS |
6404 | keybuf[t] = key; |
6405 | mock_input = t + 1; | |
6406 | ||
6407 | /* Arrange to go back to the original buffer once we're | |
6408 | done reading the key sequence. Note that we can't | |
6409 | use save_excursion_{save,restore} here, because they | |
6410 | save point as well as the current buffer; we don't | |
6411 | want to save point, because redisplay may change it, | |
6412 | to accommodate a Fset_window_start or something. We | |
6413 | don't want to do this at the top of the function, | |
6414 | because we may get input from a subprocess which | |
6415 | wants to change the selected window and stuff (say, | |
6416 | emacsclient). */ | |
6417 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
6418 | ||
6419 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); | |
e0dff5f6 | 6420 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 6421 | goto replay_sequence; |
0a7f1fc0 | 6422 | } |
e0dff5f6 RS |
6423 | /* For a mouse click, get the local text-property keymap |
6424 | of the place clicked on, rather than point. */ | |
6425 | if (last_real_key_start == 0 && CONSP (XCONS (key)->cdr) | |
6426 | && ! localized_local_map) | |
5ec75a55 | 6427 | { |
e0dff5f6 RS |
6428 | Lisp_Object map_here, start, pos; |
6429 | ||
6430 | localized_local_map = 1; | |
6431 | start = EVENT_START (key); | |
6432 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) | |
6433 | { | |
6434 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
6435 | if (INTEGERP (pos) |
6436 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
6437 | { |
6438 | map_here = get_local_map (XINT (pos), current_buffer); | |
6439 | if (!EQ (map_here, orig_local_map)) | |
6440 | { | |
6441 | orig_local_map = map_here; | |
6442 | keybuf[t] = key; | |
6443 | mock_input = t + 1; | |
5ec75a55 | 6444 | |
e0dff5f6 RS |
6445 | goto replay_sequence; |
6446 | } | |
6447 | } | |
6448 | } | |
6449 | } | |
6450 | ||
6451 | /* Expand mode-line and scroll-bar events into two events: | |
6452 | use posn as a fake prefix key. */ | |
6453 | if (SYMBOLP (posn)) | |
6454 | { | |
7e85b935 | 6455 | if (t + 1 >= bufsize) |
3fe8e9a2 | 6456 | error ("Key sequence too long"); |
7e85b935 RS |
6457 | keybuf[t] = posn; |
6458 | keybuf[t+1] = key; | |
6459 | mock_input = t + 2; | |
6460 | ||
6461 | /* Zap the position in key, so we know that we've | |
6462 | expanded it, and don't try to do so again. */ | |
6463 | POSN_BUFFER_POSN (EVENT_START (key)) | |
6464 | = Fcons (posn, Qnil); | |
6465 | goto replay_key; | |
5ec75a55 | 6466 | } |
0a7f1fc0 | 6467 | } |
7e85b935 | 6468 | else if (EQ (kind, Qswitch_frame)) |
a6d53864 | 6469 | { |
ce98e608 KH |
6470 | /* If we're at the beginning of a key sequence, and the caller |
6471 | says it's okay, go ahead and return this event. If we're | |
6472 | in the midst of a key sequence, delay it until the end. */ | |
6473 | if (t > 0 || !can_return_switch_frame) | |
7e85b935 RS |
6474 | { |
6475 | delayed_switch_frame = key; | |
6476 | goto replay_key; | |
6477 | } | |
6478 | } | |
7a80a6f6 RS |
6479 | else if (CONSP (XCONS (key)->cdr) |
6480 | && CONSP (EVENT_START (key)) | |
6481 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 6482 | { |
9b8eb840 | 6483 | Lisp_Object posn; |
7e85b935 | 6484 | |
9b8eb840 | 6485 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
6486 | /* Handle menu-bar events: |
6487 | insert the dummy prefix event `menu-bar'. */ | |
6488 | if (EQ (posn, Qmenu_bar)) | |
6489 | { | |
6490 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 6491 | error ("Key sequence too long"); |
7e85b935 RS |
6492 | keybuf[t] = posn; |
6493 | keybuf[t+1] = key; | |
6494 | ||
6495 | /* Zap the position in key, so we know that we've | |
6496 | expanded it, and don't try to do so again. */ | |
6497 | POSN_BUFFER_POSN (EVENT_START (key)) | |
6498 | = Fcons (posn, Qnil); | |
6499 | ||
6500 | mock_input = t + 2; | |
6501 | goto replay_sequence; | |
6502 | } | |
8c18cbfb | 6503 | else if (CONSP (posn)) |
7e85b935 RS |
6504 | { |
6505 | /* We're looking at the second event of a | |
6506 | sequence which we expanded before. Set | |
6507 | last_real_key_start appropriately. */ | |
6508 | if (last_real_key_start == t && t > 0) | |
6509 | last_real_key_start = t - 1; | |
6510 | } | |
a6d53864 | 6511 | } |
284f4730 | 6512 | } |
f4255cd1 JB |
6513 | |
6514 | /* We have finally decided that KEY is something we might want | |
6515 | to look up. */ | |
284f4730 JB |
6516 | first_binding = (follow_key (key, |
6517 | nmaps - first_binding, | |
253598e4 | 6518 | submaps + first_binding, |
284f4730 | 6519 | defs + first_binding, |
4e50f26a | 6520 | submaps + first_binding) |
284f4730 | 6521 | + first_binding); |
0a7f1fc0 | 6522 | |
f4255cd1 | 6523 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
6524 | if (first_binding >= nmaps) |
6525 | { | |
9b8eb840 | 6526 | Lisp_Object head; |
0a7f1fc0 | 6527 | |
9b8eb840 | 6528 | head = EVENT_HEAD (key); |
24736fbc | 6529 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
6530 | { |
6531 | read_key_sequence_cmd = Vprefix_help_command; | |
6532 | keybuf[t++] = key; | |
6533 | last_nonmenu_event = key; | |
bc536d84 RS |
6534 | /* The Microsoft C compiler can't handle the goto that |
6535 | would go here. */ | |
309b0fc8 | 6536 | dummyflag = 1; |
0d882d52 | 6537 | break; |
7e85b935 RS |
6538 | } |
6539 | ||
8c18cbfb | 6540 | if (SYMBOLP (head)) |
0a7f1fc0 | 6541 | { |
9b8eb840 KH |
6542 | Lisp_Object breakdown; |
6543 | int modifiers; | |
0a7f1fc0 | 6544 | |
9b8eb840 KH |
6545 | breakdown = parse_modifiers (head); |
6546 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
6547 | /* Attempt to reduce an unbound mouse event to a simpler |
6548 | event that is bound: | |
6549 | Drags reduce to clicks. | |
6550 | Double-clicks reduce to clicks. | |
6551 | Triple-clicks reduce to double-clicks, then to clicks. | |
6552 | Down-clicks are eliminated. | |
6553 | Double-downs reduce to downs, then are eliminated. | |
6554 | Triple-downs reduce to double-downs, then to downs, | |
6555 | then are eliminated. */ | |
6556 | if (modifiers & (down_modifier | drag_modifier | |
6557 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 6558 | { |
559f9d04 RS |
6559 | while (modifiers & (down_modifier | drag_modifier |
6560 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
6561 | { |
6562 | Lisp_Object new_head, new_click; | |
6563 | if (modifiers & triple_modifier) | |
6564 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
6565 | else if (modifiers & double_modifier) |
6566 | modifiers &= ~double_modifier; | |
6567 | else if (modifiers & drag_modifier) | |
6568 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
6569 | else |
6570 | { | |
6571 | /* Dispose of this `down' event by simply jumping | |
6572 | back to replay_key, to get another event. | |
6573 | ||
6574 | Note that if this event came from mock input, | |
6575 | then just jumping back to replay_key will just | |
6576 | hand it to us again. So we have to wipe out any | |
6577 | mock input. | |
6578 | ||
6579 | We could delete keybuf[t] and shift everything | |
6580 | after that to the left by one spot, but we'd also | |
6581 | have to fix up any variable that points into | |
6582 | keybuf, and shifting isn't really necessary | |
6583 | anyway. | |
6584 | ||
6585 | Adding prefixes for non-textual mouse clicks | |
6586 | creates two characters of mock input, and both | |
6587 | must be thrown away. If we're only looking at | |
6588 | the prefix now, we can just jump back to | |
6589 | replay_key. On the other hand, if we've already | |
6590 | processed the prefix, and now the actual click | |
6591 | itself is giving us trouble, then we've lost the | |
6592 | state of the keymaps we want to backtrack to, and | |
6593 | we need to replay the whole sequence to rebuild | |
6594 | it. | |
6595 | ||
6596 | Beyond that, only function key expansion could | |
6597 | create more than two keys, but that should never | |
6598 | generate mouse events, so it's okay to zero | |
6599 | mock_input in that case too. | |
6600 | ||
6601 | Isn't this just the most wonderful code ever? */ | |
6602 | if (t == last_real_key_start) | |
6603 | { | |
6604 | mock_input = 0; | |
6605 | goto replay_key; | |
6606 | } | |
6607 | else | |
6608 | { | |
6609 | mock_input = last_real_key_start; | |
6610 | goto replay_sequence; | |
6611 | } | |
6612 | } | |
6613 | ||
27203ead RS |
6614 | new_head |
6615 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
6616 | new_click | |
6617 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
6618 | |
6619 | /* Look for a binding for this new key. follow_key | |
6620 | promises that it didn't munge submaps the | |
6621 | last time we called it, since key was unbound. */ | |
27203ead RS |
6622 | first_binding |
6623 | = (follow_key (new_click, | |
6624 | nmaps - local_first_binding, | |
6625 | submaps + local_first_binding, | |
6626 | defs + local_first_binding, | |
4e50f26a | 6627 | submaps + local_first_binding) |
27203ead | 6628 | + local_first_binding); |
fbcd35bd JB |
6629 | |
6630 | /* If that click is bound, go for it. */ | |
6631 | if (first_binding < nmaps) | |
6632 | { | |
6633 | key = new_click; | |
6634 | break; | |
6635 | } | |
6636 | /* Otherwise, we'll leave key set to the drag event. */ | |
6637 | } | |
0a7f1fc0 JB |
6638 | } |
6639 | } | |
6640 | } | |
6641 | ||
284f4730 | 6642 | keybuf[t++] = key; |
7d6de002 RS |
6643 | /* Normally, last_nonmenu_event gets the previous key we read. |
6644 | But when a mouse popup menu is being used, | |
6645 | we don't update last_nonmenu_event; it continues to hold the mouse | |
6646 | event that preceded the first level of menu. */ | |
6647 | if (!used_mouse_menu) | |
6648 | last_nonmenu_event = key; | |
284f4730 | 6649 | |
6321824f RS |
6650 | /* Record what part of this_command_keys is the current key sequence. */ |
6651 | this_single_command_key_start = this_command_key_count - t; | |
6652 | ||
3fe8e9a2 RS |
6653 | prev_fkey_map = fkey_map; |
6654 | prev_fkey_start = fkey_start; | |
6655 | prev_fkey_end = fkey_end; | |
6656 | ||
6657 | prev_keytran_map = keytran_map; | |
6658 | prev_keytran_start = keytran_start; | |
6659 | prev_keytran_end = keytran_end; | |
6660 | ||
284f4730 | 6661 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
6662 | off the end of it. We only want to scan real keyboard input |
6663 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 6664 | re-reading old events, don't examine it. */ |
4e50f26a | 6665 | if (first_binding >= nmaps |
253598e4 | 6666 | && t >= mock_input) |
284f4730 JB |
6667 | { |
6668 | Lisp_Object fkey_next; | |
6669 | ||
e9bf89a0 RS |
6670 | /* Continue scan from fkey_end until we find a bound suffix. |
6671 | If we fail, increment fkey_start | |
6672 | and start fkey_end from there. */ | |
284f4730 JB |
6673 | while (fkey_end < t) |
6674 | { | |
f4255cd1 JB |
6675 | Lisp_Object key; |
6676 | ||
6677 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
6678 | /* Look up meta-characters by prefixing them |
6679 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 6680 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 6681 | { |
e74fbc70 RS |
6682 | fkey_next |
6683 | = get_keymap_1 | |
f4255cd1 | 6684 | (get_keyelt |
c6a67acd | 6685 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 6686 | 0, 1); |
bb9e9bed | 6687 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 6688 | } |
067ffa38 JB |
6689 | else |
6690 | fkey_next = fkey_map; | |
6691 | ||
e74fbc70 | 6692 | fkey_next |
c6a67acd | 6693 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 0); |
067ffa38 | 6694 | |
7a80a6f6 RS |
6695 | #if 0 /* I didn't turn this on, because it might cause trouble |
6696 | for the mapping of return into C-m and tab into C-i. */ | |
6697 | /* Optionally don't map function keys into other things. | |
6698 | This enables the user to redefine kp- keys easily. */ | |
6699 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
6700 | fkey_next = Qnil; | |
6701 | #endif | |
6702 | ||
1abe6abe RS |
6703 | /* If the function key map gives a function, not an |
6704 | array, then call the function with no args and use | |
6705 | its value instead. */ | |
6706 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
6707 | && fkey_end == t) | |
6708 | { | |
6709 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6710 | Lisp_Object tem; | |
6711 | tem = fkey_next; | |
6712 | ||
6713 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 6714 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
6715 | UNGCPRO; |
6716 | /* If the function returned something invalid, | |
6717 | barf--don't ignore it. | |
df0f2ba1 | 6718 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6719 | other variables.) */ |
6720 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 6721 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
6722 | } |
6723 | ||
e9bf89a0 RS |
6724 | function_key_possible = ! NILP (fkey_next); |
6725 | ||
85bc5181 | 6726 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 6727 | function key map and it's a suffix of the current |
85bc5181 | 6728 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 6729 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 6730 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
6731 | && fkey_end == t) |
6732 | { | |
2e864a76 | 6733 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
6734 | |
6735 | t = fkey_start + len; | |
284f4730 | 6736 | if (t >= bufsize) |
3fe8e9a2 | 6737 | error ("Key sequence too long"); |
284f4730 | 6738 | |
f5ea6163 JB |
6739 | if (VECTORP (fkey_next)) |
6740 | bcopy (XVECTOR (fkey_next)->contents, | |
6741 | keybuf + fkey_start, | |
6742 | (t - fkey_start) * sizeof (keybuf[0])); | |
6743 | else if (STRINGP (fkey_next)) | |
6744 | { | |
6745 | int i; | |
6746 | ||
6747 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6748 | XSETFASTINT (keybuf[fkey_start + i], |
6749 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 6750 | } |
df0f2ba1 | 6751 | |
284f4730 JB |
6752 | mock_input = t; |
6753 | fkey_start = fkey_end = t; | |
32e6d806 | 6754 | fkey_map = Vfunction_key_map; |
284f4730 | 6755 | |
00a78037 RS |
6756 | /* Do pass the results through key-translation-map. */ |
6757 | keytran_start = keytran_end = 0; | |
6758 | keytran_map = Vkey_translation_map; | |
6759 | ||
f4255cd1 | 6760 | goto replay_sequence; |
284f4730 | 6761 | } |
df0f2ba1 | 6762 | |
f4255cd1 | 6763 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 6764 | |
df0f2ba1 | 6765 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 6766 | fkey_start. */ |
284f4730 JB |
6767 | if (NILP (fkey_map)) |
6768 | { | |
6769 | fkey_end = ++fkey_start; | |
6770 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 6771 | function_key_possible = 0; |
284f4730 JB |
6772 | } |
6773 | } | |
6774 | } | |
a612e298 RS |
6775 | |
6776 | /* Look for this sequence in key-translation-map. */ | |
6777 | { | |
6778 | Lisp_Object keytran_next; | |
6779 | ||
6780 | /* Scan from keytran_end until we find a bound suffix. */ | |
6781 | while (keytran_end < t) | |
6782 | { | |
6783 | Lisp_Object key; | |
6784 | ||
6785 | key = keybuf[keytran_end++]; | |
6786 | /* Look up meta-characters by prefixing them | |
6787 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 6788 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
6789 | { |
6790 | keytran_next | |
6791 | = get_keymap_1 | |
6792 | (get_keyelt | |
c6a67acd | 6793 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 6794 | 0, 1); |
bb9e9bed | 6795 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
6796 | } |
6797 | else | |
6798 | keytran_next = keytran_map; | |
6799 | ||
6800 | keytran_next | |
c6a67acd | 6801 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 0); |
a612e298 | 6802 | |
1abe6abe RS |
6803 | /* If the key translation map gives a function, not an |
6804 | array, then call the function with no args and use | |
6805 | its value instead. */ | |
6806 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
6807 | && keytran_end == t) | |
6808 | { | |
6809 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6810 | Lisp_Object tem; | |
6811 | tem = keytran_next; | |
6812 | ||
40932d1a | 6813 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 6814 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
6815 | UNGCPRO; |
6816 | /* If the function returned something invalid, | |
6817 | barf--don't ignore it. | |
df0f2ba1 | 6818 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6819 | other variables.) */ |
6820 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 6821 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
6822 | } |
6823 | ||
00a78037 RS |
6824 | key_translation_possible = ! NILP (keytran_next); |
6825 | ||
a612e298 | 6826 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 6827 | key translation map and it's a suffix of the current |
a612e298 RS |
6828 | sequence (i.e. keytran_end == t), replace it with |
6829 | the binding and restart with keytran_start at the end. */ | |
6830 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
6831 | && keytran_end == t) | |
6832 | { | |
2e864a76 | 6833 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
6834 | |
6835 | t = keytran_start + len; | |
6836 | if (t >= bufsize) | |
3fe8e9a2 | 6837 | error ("Key sequence too long"); |
a612e298 RS |
6838 | |
6839 | if (VECTORP (keytran_next)) | |
6840 | bcopy (XVECTOR (keytran_next)->contents, | |
6841 | keybuf + keytran_start, | |
6842 | (t - keytran_start) * sizeof (keybuf[0])); | |
6843 | else if (STRINGP (keytran_next)) | |
6844 | { | |
6845 | int i; | |
6846 | ||
6847 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6848 | XSETFASTINT (keybuf[keytran_start + i], |
6849 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
6850 | } |
6851 | ||
6852 | mock_input = t; | |
6853 | keytran_start = keytran_end = t; | |
6854 | keytran_map = Vkey_translation_map; | |
6855 | ||
00a78037 RS |
6856 | /* Don't pass the results of key-translation-map |
6857 | through function-key-map. */ | |
6858 | fkey_start = fkey_end = t; | |
6859 | fkey_map = Vkey_translation_map; | |
6860 | ||
a612e298 RS |
6861 | goto replay_sequence; |
6862 | } | |
6863 | ||
6864 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
6865 | ||
df0f2ba1 | 6866 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
6867 | keytran_start. */ |
6868 | if (NILP (keytran_map)) | |
6869 | { | |
6870 | keytran_end = ++keytran_start; | |
6871 | keytran_map = Vkey_translation_map; | |
00a78037 | 6872 | key_translation_possible = 0; |
a612e298 RS |
6873 | } |
6874 | } | |
6875 | } | |
4e50f26a RS |
6876 | |
6877 | /* If KEY is not defined in any of the keymaps, | |
6878 | and cannot be part of a function key or translation, | |
6879 | and is an upper case letter | |
6880 | use the corresponding lower-case letter instead. */ | |
6881 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 6882 | && ! key_translation_possible |
8c18cbfb | 6883 | && INTEGERP (key) |
4e50f26a RS |
6884 | && ((((XINT (key) & 0x3ffff) |
6885 | < XSTRING (current_buffer->downcase_table)->size) | |
6886 | && UPPERCASEP (XINT (key) & 0x3ffff)) | |
6887 | || (XINT (key) & shift_modifier))) | |
6888 | { | |
569871d2 | 6889 | Lisp_Object new_key; |
569871d2 | 6890 | |
309b0fc8 RS |
6891 | original_uppercase = key; |
6892 | original_uppercase_position = t - 1; | |
6893 | ||
831f35a2 | 6894 | if (XINT (key) & shift_modifier) |
569871d2 | 6895 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 6896 | else |
569871d2 RS |
6897 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
6898 | | (XINT (key) & ~0x3ffff))); | |
6899 | ||
3fe8e9a2 RS |
6900 | /* We have to do this unconditionally, regardless of whether |
6901 | the lower-case char is defined in the keymaps, because they | |
6902 | might get translated through function-key-map. */ | |
6903 | keybuf[t - 1] = new_key; | |
6904 | mock_input = t; | |
6905 | ||
6906 | fkey_map = prev_fkey_map; | |
6907 | fkey_start = prev_fkey_start; | |
6908 | fkey_end = prev_fkey_end; | |
6909 | ||
6910 | keytran_map = prev_keytran_map; | |
6911 | keytran_start = prev_keytran_start; | |
6912 | keytran_end = prev_keytran_end; | |
6913 | ||
6914 | goto replay_sequence; | |
4e50f26a | 6915 | } |
ef8fd672 RS |
6916 | /* If KEY is not defined in any of the keymaps, |
6917 | and cannot be part of a function key or translation, | |
6918 | and is a shifted function key, | |
6919 | use the corresponding unshifted function key instead. */ | |
6920 | if (first_binding == nmaps && ! function_key_possible | |
6921 | && ! key_translation_possible | |
6922 | && SYMBOLP (key)) | |
6923 | { | |
6924 | Lisp_Object breakdown; | |
6925 | int modifiers; | |
6926 | ||
6927 | breakdown = parse_modifiers (key); | |
6928 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
6929 | if (modifiers & shift_modifier) | |
6930 | { | |
569871d2 | 6931 | Lisp_Object new_key; |
3fe8e9a2 RS |
6932 | |
6933 | original_uppercase = key; | |
6934 | original_uppercase_position = t - 1; | |
ef8fd672 | 6935 | |
569871d2 RS |
6936 | modifiers &= ~shift_modifier; |
6937 | new_key = apply_modifiers (modifiers, | |
6938 | XCONS (breakdown)->car); | |
6939 | ||
3fe8e9a2 RS |
6940 | keybuf[t - 1] = new_key; |
6941 | mock_input = t; | |
6942 | ||
6943 | fkey_map = prev_fkey_map; | |
6944 | fkey_start = prev_fkey_start; | |
6945 | fkey_end = prev_fkey_end; | |
6946 | ||
6947 | keytran_map = prev_keytran_map; | |
6948 | keytran_start = prev_keytran_start; | |
6949 | keytran_end = prev_keytran_end; | |
6950 | ||
6951 | goto replay_sequence; | |
ef8fd672 RS |
6952 | } |
6953 | } | |
284f4730 JB |
6954 | } |
6955 | ||
309b0fc8 | 6956 | if (!dummyflag) |
bc536d84 RS |
6957 | read_key_sequence_cmd = (first_binding < nmaps |
6958 | ? defs[first_binding] | |
6959 | : Qnil); | |
284f4730 | 6960 | |
cd21b839 | 6961 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 6962 | unbind_to (count, Qnil); |
07f76a14 | 6963 | |
3fe8e9a2 RS |
6964 | /* Don't downcase the last character if the caller says don't. |
6965 | Don't downcase it if the result is undefined, either. */ | |
6966 | if ((dont_downcase_last || first_binding >= nmaps) | |
6967 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
6968 | keybuf[t - 1] = original_uppercase; |
6969 | ||
07f76a14 JB |
6970 | /* Occasionally we fabricate events, perhaps by expanding something |
6971 | according to function-key-map, or by adding a prefix symbol to a | |
6972 | mouse click in the scroll bar or modeline. In this cases, return | |
6973 | the entire generated key sequence, even if we hit an unbound | |
6974 | prefix or a definition before the end. This means that you will | |
6975 | be able to push back the event properly, and also means that | |
6976 | read-key-sequence will always return a logical unit. | |
6977 | ||
6978 | Better ideas? */ | |
cca310da JB |
6979 | for (; t < mock_input; t++) |
6980 | { | |
a98ea3f9 RS |
6981 | if (echo_keystrokes) |
6982 | echo_char (keybuf[t]); | |
cca310da JB |
6983 | add_command_key (keybuf[t]); |
6984 | } | |
07f76a14 | 6985 | |
284f4730 JB |
6986 | return t; |
6987 | } | |
6988 | ||
a612e298 RS |
6989 | #if 0 /* This doc string is too long for some compilers. |
6990 | This commented-out definition serves for DOC. */ | |
ce98e608 | 6991 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
6992 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
6993 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
6994 | current local and global maps.\n\ | |
6995 | \n\ | |
c0a58692 RS |
6996 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
6997 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
6998 | as a continuation of the previous key.\n\ | |
284f4730 | 6999 | \n\ |
309b0fc8 RS |
7000 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
7001 | convert the last event to lower case. (Normally any upper case event\n\ | |
7002 | is converted to lower case if the original event is undefined and the lower\n\ | |
7003 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
7004 | a key sequence to be defined.\n\ | |
7005 | \n\ | |
cb5df6ae JB |
7006 | A C-g typed while in this function is treated like any other character,\n\ |
7007 | and `quit-flag' is not set.\n\ | |
7008 | \n\ | |
7009 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
7010 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
7011 | of the selected window as normal.\n\ | |
ede41463 | 7012 | ""\n\ |
cb5df6ae JB |
7013 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
7014 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
7015 | or multi-click event is unbound, but the corresponding click event would\n\ |
7016 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 7017 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 7018 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
7019 | \n\ |
7020 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
7021 | lines separating windows, and scroll bars with imaginary keys\n\ |
7022 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 7023 | \n\ |
ce98e608 KH |
7024 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
7025 | function will process a switch-frame event if the user switches frames\n\ | |
7026 | before typing anything. If the user switches frames in the middle of a\n\ | |
7027 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
7028 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
7029 | \n\ |
7030 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
7031 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
4bb994d1 | 7032 | `function-key-map' for more details.") |
11e08aab | 7033 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
a612e298 RS |
7034 | #endif |
7035 | ||
ce98e608 | 7036 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
a612e298 | 7037 | 0) |
ce98e608 | 7038 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
309b0fc8 | 7039 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
ce98e608 | 7040 | Lisp_Object can_return_switch_frame; |
284f4730 JB |
7041 | { |
7042 | Lisp_Object keybuf[30]; | |
7043 | register int i; | |
7044 | struct gcpro gcpro1, gcpro2; | |
7045 | ||
7046 | if (!NILP (prompt)) | |
7047 | CHECK_STRING (prompt, 0); | |
7048 | QUIT; | |
7049 | ||
7050 | bzero (keybuf, sizeof keybuf); | |
7051 | GCPRO1 (keybuf[0]); | |
7052 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
7053 | ||
daa37602 | 7054 | if (NILP (continue_echo)) |
6321824f RS |
7055 | { |
7056 | this_command_key_count = 0; | |
7057 | this_single_command_key_start = 0; | |
7058 | } | |
c0a58692 | 7059 | |
309b0fc8 | 7060 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 7061 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 7062 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 7063 | |
dcc408a0 RS |
7064 | if (i == -1) |
7065 | { | |
7066 | Vquit_flag = Qt; | |
7067 | QUIT; | |
7068 | } | |
284f4730 | 7069 | UNGCPRO; |
86e5706b | 7070 | return make_event_array (i, keybuf); |
284f4730 JB |
7071 | } |
7072 | \f | |
158f7532 | 7073 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
7074 | "Execute CMD as an editor command.\n\ |
7075 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
7076 | Optional second arg RECORD-FLAG non-nil\n\ | |
7077 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
7078 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
7079 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 7080 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
7081 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
7082 | a special event, so ignore the prefix argument and don't clear it.") | |
7083 | (cmd, record_flag, keys, special) | |
7084 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
7085 | { |
7086 | register Lisp_Object final; | |
7087 | register Lisp_Object tem; | |
7088 | Lisp_Object prefixarg; | |
7089 | struct backtrace backtrace; | |
7090 | extern int debug_on_next_call; | |
7091 | ||
284f4730 JB |
7092 | debug_on_next_call = 0; |
7093 | ||
158f7532 RS |
7094 | if (NILP (special)) |
7095 | { | |
7096 | prefixarg = current_kboard->Vprefix_arg; | |
7097 | Vcurrent_prefix_arg = prefixarg; | |
7098 | current_kboard->Vprefix_arg = Qnil; | |
7099 | } | |
7100 | else | |
7101 | prefixarg = Qnil; | |
7102 | ||
8c18cbfb | 7103 | if (SYMBOLP (cmd)) |
284f4730 JB |
7104 | { |
7105 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 7106 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
7107 | { |
7108 | tem = Fsymbol_value (Qdisabled_command_hook); | |
7109 | if (!NILP (tem)) | |
7110 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
7111 | } | |
284f4730 JB |
7112 | } |
7113 | ||
01e26217 | 7114 | while (1) |
284f4730 | 7115 | { |
ffd56f97 | 7116 | final = Findirect_function (cmd); |
284f4730 JB |
7117 | |
7118 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
7119 | { |
7120 | struct gcpro gcpro1, gcpro2; | |
7121 | ||
7122 | GCPRO2 (cmd, prefixarg); | |
7123 | do_autoload (final, cmd); | |
7124 | UNGCPRO; | |
7125 | } | |
284f4730 JB |
7126 | else |
7127 | break; | |
7128 | } | |
7129 | ||
8c18cbfb | 7130 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
7131 | { |
7132 | /* If requested, place the macro in the command history. For | |
7133 | other sorts of commands, call-interactively takes care of | |
7134 | this. */ | |
e57d8fd8 | 7135 | if (!NILP (record_flag)) |
284f4730 JB |
7136 | Vcommand_history |
7137 | = Fcons (Fcons (Qexecute_kbd_macro, | |
7138 | Fcons (final, Fcons (prefixarg, Qnil))), | |
7139 | Vcommand_history); | |
7140 | ||
7141 | return Fexecute_kbd_macro (final, prefixarg); | |
7142 | } | |
8c18cbfb | 7143 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
7144 | { |
7145 | backtrace.next = backtrace_list; | |
7146 | backtrace_list = &backtrace; | |
7147 | backtrace.function = &Qcall_interactively; | |
7148 | backtrace.args = &cmd; | |
7149 | backtrace.nargs = 1; | |
7150 | backtrace.evalargs = 0; | |
7151 | ||
e57d8fd8 | 7152 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
7153 | |
7154 | backtrace_list = backtrace.next; | |
7155 | return tem; | |
7156 | } | |
7157 | return Qnil; | |
7158 | } | |
7159 | \f | |
284f4730 JB |
7160 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
7161 | 1, 1, "P", | |
7162 | "Read function name, then read its arguments and call it.") | |
7163 | (prefixarg) | |
7164 | Lisp_Object prefixarg; | |
7165 | { | |
7166 | Lisp_Object function; | |
7167 | char buf[40]; | |
7168 | Lisp_Object saved_keys; | |
5434fce6 | 7169 | Lisp_Object bindings, value; |
214360e9 | 7170 | struct gcpro gcpro1, gcpro2; |
284f4730 | 7171 | |
b0f2a7bf KH |
7172 | saved_keys = Fvector (this_command_key_count, |
7173 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 7174 | buf[0] = 0; |
fde7aff8 | 7175 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
7176 | |
7177 | if (EQ (prefixarg, Qminus)) | |
7178 | strcpy (buf, "- "); | |
7179 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
7180 | strcpy (buf, "C-u "); | |
8c18cbfb | 7181 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
7182 | { |
7183 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7184 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
7185 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7186 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
7187 | else | |
7188 | abort (); | |
7189 | } | |
8c18cbfb | 7190 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
7191 | { |
7192 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7193 | sprintf (buf, "%d ", XINT (prefixarg)); | |
7194 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7195 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
7196 | else | |
7197 | abort (); | |
7198 | } | |
284f4730 JB |
7199 | |
7200 | /* This isn't strictly correct if execute-extended-command | |
7201 | is bound to anything else. Perhaps it should use | |
7202 | this_command_keys? */ | |
7203 | strcat (buf, "M-x "); | |
7204 | ||
7205 | /* Prompt with buf, and then read a string, completing from and | |
7206 | restricting to the set of all defined commands. Don't provide | |
51763820 | 7207 | any initial input. Save the command read on the extended-command |
03b4122a | 7208 | history list. */ |
284f4730 JB |
7209 | function = Fcompleting_read (build_string (buf), |
7210 | Vobarray, Qcommandp, | |
4328577a KH |
7211 | Qt, Qnil, Qextended_command_history, Qnil, |
7212 | Qnil); | |
284f4730 | 7213 | |
1f5b1641 RS |
7214 | if (STRINGP (function) && XSTRING (function)->size == 0) |
7215 | error ("No command name given"); | |
7216 | ||
1113d9db JB |
7217 | /* Set this_command_keys to the concatenation of saved_keys and |
7218 | function, followed by a RET. */ | |
284f4730 | 7219 | { |
1113d9db | 7220 | struct Lisp_String *str; |
b0f2a7bf | 7221 | Lisp_Object *keys; |
284f4730 JB |
7222 | int i; |
7223 | Lisp_Object tem; | |
7224 | ||
1113d9db | 7225 | this_command_key_count = 0; |
6321824f | 7226 | this_single_command_key_start = 0; |
1113d9db | 7227 | |
b0f2a7bf KH |
7228 | keys = XVECTOR (saved_keys)->contents; |
7229 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
7230 | add_command_key (keys[i]); | |
1113d9db JB |
7231 | |
7232 | str = XSTRING (function); | |
7233 | for (i = 0; i < str->size; i++) | |
7234 | { | |
bb9e9bed | 7235 | XSETFASTINT (tem, str->data[i]); |
1113d9db JB |
7236 | add_command_key (tem); |
7237 | } | |
7238 | ||
bb9e9bed | 7239 | XSETFASTINT (tem, '\015'); |
1113d9db | 7240 | add_command_key (tem); |
284f4730 JB |
7241 | } |
7242 | ||
7243 | UNGCPRO; | |
7244 | ||
0a7f1fc0 | 7245 | function = Fintern (function, Qnil); |
d8bcf58e | 7246 | current_kboard->Vprefix_arg = prefixarg; |
284f4730 JB |
7247 | this_command = function; |
7248 | ||
6526ab49 RS |
7249 | /* If enabled, show which key runs this command. */ |
7250 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 7251 | && NILP (Vexecuting_macro) |
6526ab49 | 7252 | && SYMBOLP (function)) |
5434fce6 RS |
7253 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
7254 | Qt, Qnil); | |
7255 | else | |
7256 | bindings = Qnil; | |
6526ab49 | 7257 | |
5434fce6 RS |
7258 | value = Qnil; |
7259 | GCPRO2 (bindings, value); | |
7260 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 7261 | |
5434fce6 | 7262 | /* If the command has a key binding, print it now. */ |
3ababa60 | 7263 | if (!NILP (bindings) |
9c3a2514 KH |
7264 | && ! (ARRAYP (bindings) |
7265 | && EQ (Faref (Voverriding_local_map, bindings), Qmouse_movement))) | |
5434fce6 RS |
7266 | { |
7267 | /* But first wait, and skip the message if there is input. */ | |
7268 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) | |
7269 | ? Vsuggest_key_bindings : make_number (2)), | |
303b5b3f RS |
7270 | Qnil, Qnil)) |
7271 | && ! CONSP (Vunread_command_events)) | |
6526ab49 | 7272 | { |
5434fce6 RS |
7273 | Lisp_Object binding; |
7274 | char *newmessage; | |
7275 | char *oldmessage = echo_area_glyphs; | |
7276 | int oldmessage_len = echo_area_glyphs_length; | |
7277 | ||
7278 | binding = Fkey_description (bindings); | |
7279 | ||
7280 | newmessage | |
7281 | = (char *) alloca (XSYMBOL (function)->name->size | |
7282 | + XSTRING (binding)->size | |
7283 | + 100); | |
3ababa60 | 7284 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 7285 | XSYMBOL (function)->name->data, |
5434fce6 RS |
7286 | XSTRING (binding)->data); |
7287 | message1_nolog (newmessage); | |
7288 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) | |
7289 | ? Vsuggest_key_bindings : make_number (2)), | |
7290 | Qnil, Qnil))) | |
7291 | message2_nolog (oldmessage, oldmessage_len); | |
6526ab49 RS |
7292 | } |
7293 | } | |
7294 | ||
5434fce6 | 7295 | RETURN_UNGCPRO (value); |
284f4730 | 7296 | } |
6526ab49 RS |
7297 | |
7298 | /* Find the set of keymaps now active. | |
7299 | Store into *MAPS_P a vector holding the various maps | |
7300 | and return the number of them. The vector was malloc'd | |
7301 | and the caller should free it. */ | |
7302 | ||
7303 | int | |
7304 | current_active_maps (maps_p) | |
7305 | Lisp_Object **maps_p; | |
7306 | { | |
7307 | Lisp_Object *tmaps, *maps; | |
7308 | int nmaps; | |
7309 | ||
7310 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7311 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7312 | { | |
7313 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7314 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
7315 | nmaps = 0; | |
7316 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7317 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7318 | if (!NILP (Voverriding_local_map)) | |
7319 | maps[nmaps++] = Voverriding_local_map; | |
7320 | } | |
7321 | else | |
7322 | { | |
7323 | /* No, so use major and minor mode keymaps. */ | |
7324 | nmaps = current_minor_maps (NULL, &tmaps); | |
7325 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
7326 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
7327 | #ifdef USE_TEXT_PROPERTIES | |
7328 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
7329 | #else | |
7330 | maps[nmaps++] = current_buffer->keymap; | |
7331 | #endif | |
7332 | } | |
7333 | maps[nmaps++] = current_global_map; | |
7334 | ||
7335 | *maps_p = maps; | |
7336 | return nmaps; | |
7337 | } | |
284f4730 | 7338 | \f |
d9d4c147 | 7339 | /* Return nonzero if input events are pending. */ |
284f4730 JB |
7340 | |
7341 | detect_input_pending () | |
7342 | { | |
7343 | if (!input_pending) | |
d9d4c147 KH |
7344 | get_input_pending (&input_pending, 0); |
7345 | ||
7346 | return input_pending; | |
7347 | } | |
7348 | ||
b1878f45 | 7349 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 7350 | |
87dd9b9b RS |
7351 | detect_input_pending_run_timers (do_display) |
7352 | int do_display; | |
d9d4c147 | 7353 | { |
87dd9b9b RS |
7354 | int old_timers_run = timers_run; |
7355 | ||
d9d4c147 KH |
7356 | if (!input_pending) |
7357 | get_input_pending (&input_pending, 1); | |
284f4730 | 7358 | |
87dd9b9b RS |
7359 | if (old_timers_run != timers_run && do_display) |
7360 | redisplay_preserve_echo_area (); | |
7361 | ||
284f4730 JB |
7362 | return input_pending; |
7363 | } | |
7364 | ||
ffd56f97 JB |
7365 | /* This is called in some cases before a possible quit. |
7366 | It cases the next call to detect_input_pending to recompute input_pending. | |
7367 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
7368 | |
7369 | void | |
ffd56f97 JB |
7370 | clear_input_pending () |
7371 | { | |
7372 | input_pending = 0; | |
7373 | } | |
7374 | ||
b1878f45 RS |
7375 | /* Return nonzero if there are pending requeued events. |
7376 | This isn't used yet. The hope is to make wait_reading_process_input | |
7377 | call it, and return return if it runs Lisp code that unreads something. | |
7378 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
7379 | to do in that case. It isn't trivial. */ | |
7380 | ||
7381 | requeued_events_pending_p () | |
7382 | { | |
7383 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
7384 | } | |
7385 | ||
7386 | ||
284f4730 JB |
7387 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
7388 | "T if command input is currently available with no waiting.\n\ | |
7389 | Actually, the value is nil only if we can be sure that no input is available.") | |
7390 | () | |
7391 | { | |
24597608 | 7392 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
7393 | return (Qt); |
7394 | ||
d9d4c147 KH |
7395 | get_input_pending (&input_pending, 1); |
7396 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
7397 | } |
7398 | ||
7399 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 7400 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
7401 | () |
7402 | { | |
5160df46 | 7403 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
7404 | Lisp_Object val; |
7405 | ||
7406 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 7407 | return Fvector (total_keys, keys); |
284f4730 JB |
7408 | else |
7409 | { | |
5160df46 JB |
7410 | val = Fvector (NUM_RECENT_KEYS, keys); |
7411 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
7412 | XVECTOR (val)->contents, |
7413 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 7414 | bcopy (keys, |
284f4730 JB |
7415 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
7416 | recent_keys_index * sizeof (Lisp_Object)); | |
7417 | return val; | |
7418 | } | |
7419 | } | |
7420 | ||
7421 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
7422 | "Return the key sequence that invoked this command.\n\ |
7423 | The value is a string or a vector.") | |
284f4730 JB |
7424 | () |
7425 | { | |
86e5706b RS |
7426 | return make_event_array (this_command_key_count, |
7427 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
7428 | } |
7429 | ||
6321824f RS |
7430 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
7431 | Sthis_single_command_keys, 0, 0, 0, | |
7432 | "Return the key sequence that invoked this command.\n\ | |
7433 | Unlike `this-command-keys', this function's value\n\ | |
7434 | does not include prefix arguments.\n\ | |
7435 | The value is a string or a vector.") | |
7436 | () | |
7437 | { | |
7438 | return make_event_array (this_command_key_count | |
7439 | - this_single_command_key_start, | |
7440 | (XVECTOR (this_command_keys)->contents | |
7441 | + this_single_command_key_start)); | |
7442 | } | |
7443 | ||
71918b75 RS |
7444 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
7445 | Sreset_this_command_lengths, 0, 0, 0, | |
7446 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
7447 | \n\ | |
7448 | `universal-argument-other-key' rereads the event just typed.\n\ | |
7449 | It then gets translated through `function-key-map'.\n\ | |
7450 | The translated event gets included in the echo area and in\n\ | |
7451 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
7452 | That is not right.\n\ | |
7453 | \n\ | |
7454 | Calling this function directs the translated event to replace\n\ | |
7455 | the original event, so that only one version of the event actually\n\ | |
7456 | appears in the echo area and in the value of `this-command-keys.'.") | |
7457 | () | |
7458 | { | |
7459 | before_command_restore_flag = 1; | |
7460 | before_command_key_count_1 = before_command_key_count; | |
7461 | before_command_echo_length_1 = before_command_echo_length; | |
7462 | } | |
7463 | ||
284f4730 JB |
7464 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
7465 | "Return the current depth in recursive edits.") | |
7466 | () | |
7467 | { | |
7468 | Lisp_Object temp; | |
bb9e9bed | 7469 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
7470 | return temp; |
7471 | } | |
7472 | ||
7473 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
7474 | "FOpen dribble file: ", | |
9b2471df RS |
7475 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
7476 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
7477 | (file) |
7478 | Lisp_Object file; | |
7479 | { | |
6cb52def | 7480 | if (dribble) |
284f4730 | 7481 | { |
6cb52def KH |
7482 | fclose (dribble); |
7483 | dribble = 0; | |
284f4730 | 7484 | } |
6cb52def | 7485 | if (!NILP (file)) |
284f4730 JB |
7486 | { |
7487 | file = Fexpand_file_name (file, Qnil); | |
7488 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
7489 | if (dribble == 0) |
7490 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
7491 | } |
7492 | return Qnil; | |
7493 | } | |
7494 | ||
7495 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
7496 | "Discard the contents of the terminal input buffer.\n\ | |
7497 | Also cancel any kbd macro being defined.") | |
7498 | () | |
7499 | { | |
c5fdd383 | 7500 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
7501 | update_mode_lines++; |
7502 | ||
24597608 | 7503 | Vunread_command_events = Qnil; |
86e5706b | 7504 | unread_command_char = -1; |
284f4730 JB |
7505 | |
7506 | discard_tty_input (); | |
7507 | ||
ff0b5f4c JB |
7508 | /* Without the cast, GCC complains that this assignment loses the |
7509 | volatile qualifier of kbd_store_ptr. Is there anything wrong | |
7510 | with that? */ | |
beecf6a1 KH |
7511 | kbd_fetch_ptr = (struct input_event *) kbd_store_ptr; |
7512 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
284f4730 JB |
7513 | input_pending = 0; |
7514 | ||
7515 | return Qnil; | |
7516 | } | |
7517 | \f | |
7518 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
7519 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
7520 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
7521 | control, run a subshell instead.\n\n\ | |
284f4730 | 7522 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
7523 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
7524 | \n\ | |
bbdc2092 RS |
7525 | Before suspending, run the normal hook `suspend-hook'.\n\ |
7526 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
7527 | \n\ |
7528 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 7529 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
7530 | (stuffstring) |
7531 | Lisp_Object stuffstring; | |
7532 | { | |
3a69360c | 7533 | Lisp_Object tem; |
284f4730 JB |
7534 | int count = specpdl_ptr - specpdl; |
7535 | int old_height, old_width; | |
7536 | int width, height; | |
b7d2ebbf | 7537 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
7538 | |
7539 | if (!NILP (stuffstring)) | |
7540 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 7541 | |
1e95ed28 JB |
7542 | /* Run the functions in suspend-hook. */ |
7543 | if (!NILP (Vrun_hooks)) | |
7544 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 7545 | |
b7d2ebbf | 7546 | GCPRO1 (stuffstring); |
ff11dfa1 | 7547 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
7548 | reset_sys_modes (); |
7549 | /* sys_suspend can get an error if it tries to fork a subshell | |
7550 | and the system resources aren't available for that. */ | |
7551 | record_unwind_protect (init_sys_modes, 0); | |
7552 | stuff_buffered_input (stuffstring); | |
8026024c KH |
7553 | if (cannot_suspend) |
7554 | sys_subshell (); | |
7555 | else | |
7556 | sys_suspend (); | |
284f4730 JB |
7557 | unbind_to (count, Qnil); |
7558 | ||
7559 | /* Check if terminal/window size has changed. | |
7560 | Note that this is not useful when we are running directly | |
7561 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 7562 | get_frame_size (&width, &height); |
284f4730 | 7563 | if (width != old_width || height != old_height) |
f5ea6163 | 7564 | change_frame_size (selected_frame, height, width, 0, 0); |
284f4730 | 7565 | |
1e95ed28 | 7566 | /* Run suspend-resume-hook. */ |
284f4730 JB |
7567 | if (!NILP (Vrun_hooks)) |
7568 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 7569 | |
284f4730 JB |
7570 | UNGCPRO; |
7571 | return Qnil; | |
7572 | } | |
7573 | ||
7574 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 7575 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 7576 | |
07a59269 | 7577 | void |
284f4730 JB |
7578 | stuff_buffered_input (stuffstring) |
7579 | Lisp_Object stuffstring; | |
7580 | { | |
284f4730 | 7581 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 7582 | #ifdef BSD_SYSTEM |
284f4730 | 7583 | #ifndef BSD4_1 |
612b78ef | 7584 | register unsigned char *p; |
612b78ef | 7585 | |
8c18cbfb | 7586 | if (STRINGP (stuffstring)) |
284f4730 JB |
7587 | { |
7588 | register int count; | |
7589 | ||
7590 | p = XSTRING (stuffstring)->data; | |
7591 | count = XSTRING (stuffstring)->size; | |
7592 | while (count-- > 0) | |
7593 | stuff_char (*p++); | |
7594 | stuff_char ('\n'); | |
7595 | } | |
7596 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 7597 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 7598 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 7599 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 7600 | { |
beecf6a1 KH |
7601 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
7602 | kbd_fetch_ptr = kbd_buffer; | |
7603 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
7604 | stuff_char (kbd_fetch_ptr->code); | |
7605 | kbd_fetch_ptr->kind = no_event; | |
7606 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
7607 | - kbd_buffer] | |
7b4aedb9 | 7608 | = Qnil); |
284f4730 JB |
7609 | } |
7610 | input_pending = 0; | |
7611 | #endif | |
6df54671 | 7612 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
7613 | } |
7614 | \f | |
ffd56f97 JB |
7615 | set_waiting_for_input (time_to_clear) |
7616 | EMACS_TIME *time_to_clear; | |
284f4730 | 7617 | { |
ffd56f97 | 7618 | input_available_clear_time = time_to_clear; |
284f4730 JB |
7619 | |
7620 | /* Tell interrupt_signal to throw back to read_char, */ | |
7621 | waiting_for_input = 1; | |
7622 | ||
7623 | /* If interrupt_signal was called before and buffered a C-g, | |
7624 | make it run again now, to avoid timing error. */ | |
7625 | if (!NILP (Vquit_flag)) | |
7626 | quit_throw_to_read_char (); | |
284f4730 JB |
7627 | } |
7628 | ||
07a59269 | 7629 | void |
284f4730 JB |
7630 | clear_waiting_for_input () |
7631 | { | |
7632 | /* Tell interrupt_signal not to throw back to read_char, */ | |
7633 | waiting_for_input = 0; | |
ffd56f97 | 7634 | input_available_clear_time = 0; |
284f4730 JB |
7635 | } |
7636 | ||
7637 | /* This routine is called at interrupt level in response to C-G. | |
7638 | If interrupt_input, this is the handler for SIGINT. | |
7639 | Otherwise, it is called from kbd_buffer_store_event, | |
7640 | in handling SIGIO or SIGTINT. | |
7641 | ||
7642 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
7643 | immediately throw back to read_char. | |
7644 | ||
7645 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
7646 | This causes eval to throw, when it gets a chance. | |
7647 | If quit-flag is already non-nil, it stops the job right away. */ | |
7648 | ||
7649 | SIGTYPE | |
91c049d4 RS |
7650 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
7651 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
7652 | { |
7653 | char c; | |
7654 | /* Must preserve main program's value of errno. */ | |
7655 | int old_errno = errno; | |
284f4730 | 7656 | |
5970a8cb | 7657 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
7658 | if (!read_socket_hook && NILP (Vwindow_system)) |
7659 | { | |
7660 | /* USG systems forget handlers when they are used; | |
7661 | must reestablish each time */ | |
7662 | signal (SIGINT, interrupt_signal); | |
7663 | signal (SIGQUIT, interrupt_signal); | |
7664 | } | |
284f4730 JB |
7665 | #endif /* USG */ |
7666 | ||
7667 | cancel_echoing (); | |
7668 | ||
31e4e97b EZ |
7669 | if (!NILP (Vquit_flag) |
7670 | && (FRAME_TERMCAP_P (selected_frame) || FRAME_MSDOS_P (selected_frame))) | |
284f4730 | 7671 | { |
31e4e97b EZ |
7672 | /* If SIGINT isn't blocked, don't let us be interrupted by |
7673 | another SIGINT, it might be harmful due to non-reentrancy | |
7674 | in I/O functions. */ | |
7675 | sigblock (sigmask (SIGINT)); | |
7676 | ||
284f4730 JB |
7677 | fflush (stdout); |
7678 | reset_sys_modes (); | |
31e4e97b | 7679 | |
284f4730 JB |
7680 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
7681 | /* | |
7682 | * On systems which can suspend the current process and return to the original | |
7683 | * shell, this command causes the user to end up back at the shell. | |
7684 | * The "Auto-save" and "Abort" questions are not asked until | |
7685 | * the user elects to return to emacs, at which point he can save the current | |
7686 | * job and either dump core or continue. | |
7687 | */ | |
7688 | sys_suspend (); | |
7689 | #else | |
7690 | #ifdef VMS | |
7691 | if (sys_suspend () == -1) | |
7692 | { | |
7693 | printf ("Not running as a subprocess;\n"); | |
7694 | printf ("you can continue or abort.\n"); | |
7695 | } | |
7696 | #else /* not VMS */ | |
7697 | /* Perhaps should really fork an inferior shell? | |
7698 | But that would not provide any way to get back | |
7699 | to the original shell, ever. */ | |
7700 | printf ("No support for stopping a process on this operating system;\n"); | |
7701 | printf ("you can continue or abort.\n"); | |
7702 | #endif /* not VMS */ | |
7703 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
7704 | #ifdef MSDOS |
7705 | /* We must remain inside the screen area when the internal terminal | |
7706 | is used. Note that [Enter] is not echoed by dos. */ | |
7707 | cursor_to (0, 0); | |
7708 | #endif | |
118d6ca9 RS |
7709 | /* It doesn't work to autosave while GC is in progress; |
7710 | the code used for auto-saving doesn't cope with the mark bit. */ | |
7711 | if (!gc_in_progress) | |
9fd7d808 | 7712 | { |
118d6ca9 RS |
7713 | printf ("Auto-save? (y or n) "); |
7714 | fflush (stdout); | |
7715 | if (((c = getchar ()) & ~040) == 'Y') | |
7716 | { | |
7717 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 7718 | #ifdef MSDOS |
118d6ca9 | 7719 | printf ("\r\nAuto-save done"); |
80e4aa30 | 7720 | #else /* not MSDOS */ |
118d6ca9 | 7721 | printf ("Auto-save done\n"); |
80e4aa30 | 7722 | #endif /* not MSDOS */ |
118d6ca9 RS |
7723 | } |
7724 | while (c != '\n') c = getchar (); | |
9fd7d808 | 7725 | } |
118d6ca9 RS |
7726 | else |
7727 | { | |
7728 | /* During GC, it must be safe to reenable quitting again. */ | |
7729 | Vinhibit_quit = Qnil; | |
7730 | #ifdef MSDOS | |
7731 | printf ("\r\n"); | |
7732 | #endif /* not MSDOS */ | |
7733 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
7734 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
7735 | fflush (stdout); | |
7736 | } | |
7737 | ||
80e4aa30 RS |
7738 | #ifdef MSDOS |
7739 | printf ("\r\nAbort? (y or n) "); | |
7740 | #else /* not MSDOS */ | |
284f4730 JB |
7741 | #ifdef VMS |
7742 | printf ("Abort (and enter debugger)? (y or n) "); | |
7743 | #else /* not VMS */ | |
7744 | printf ("Abort (and dump core)? (y or n) "); | |
7745 | #endif /* not VMS */ | |
80e4aa30 | 7746 | #endif /* not MSDOS */ |
284f4730 JB |
7747 | fflush (stdout); |
7748 | if (((c = getchar ()) & ~040) == 'Y') | |
7749 | abort (); | |
7750 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
7751 | #ifdef MSDOS |
7752 | printf ("\r\nContinuing...\r\n"); | |
7753 | #else /* not MSDOS */ | |
284f4730 | 7754 | printf ("Continuing...\n"); |
80e4aa30 | 7755 | #endif /* not MSDOS */ |
284f4730 JB |
7756 | fflush (stdout); |
7757 | init_sys_modes (); | |
31e4e97b | 7758 | sigfree (); |
284f4730 JB |
7759 | } |
7760 | else | |
7761 | { | |
7762 | /* If executing a function that wants to be interrupted out of | |
7763 | and the user has not deferred quitting by binding `inhibit-quit' | |
7764 | then quit right away. */ | |
7765 | if (immediate_quit && NILP (Vinhibit_quit)) | |
7766 | { | |
7767 | immediate_quit = 0; | |
7768 | sigfree (); | |
7769 | Fsignal (Qquit, Qnil); | |
7770 | } | |
7771 | else | |
7772 | /* Else request quit when it's safe */ | |
7773 | Vquit_flag = Qt; | |
7774 | } | |
7775 | ||
7776 | if (waiting_for_input && !echoing) | |
7777 | quit_throw_to_read_char (); | |
7778 | ||
7779 | errno = old_errno; | |
7780 | } | |
7781 | ||
7782 | /* Handle a C-g by making read_char return C-g. */ | |
7783 | ||
07a59269 | 7784 | void |
284f4730 JB |
7785 | quit_throw_to_read_char () |
7786 | { | |
7787 | quit_error_check (); | |
7788 | sigfree (); | |
7789 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 7790 | clear_waiting_for_input (); |
284f4730 JB |
7791 | input_pending = 0; |
7792 | ||
24597608 | 7793 | Vunread_command_events = Qnil; |
86e5706b | 7794 | unread_command_char = -1; |
284f4730 | 7795 | |
087feab3 RS |
7796 | #if 0 /* Currently, sit_for is called from read_char without turning |
7797 | off polling. And that can call set_waiting_for_input. | |
7798 | It seems to be harmless. */ | |
e6b01c14 JB |
7799 | #ifdef POLL_FOR_INPUT |
7800 | /* May be > 1 if in recursive minibuffer. */ | |
7801 | if (poll_suppress_count == 0) | |
7802 | abort (); | |
7803 | #endif | |
087feab3 | 7804 | #endif |
4c52b668 KH |
7805 | if (FRAMEP (internal_last_event_frame) |
7806 | && XFRAME (internal_last_event_frame) != selected_frame) | |
719191cf RS |
7807 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
7808 | Qnil, 0); | |
e6b01c14 | 7809 | |
284f4730 JB |
7810 | _longjmp (getcjmp, 1); |
7811 | } | |
7812 | \f | |
7813 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
7814 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
7815 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
7816 | nil means use CBREAK mode.\n\ | |
7817 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 7818 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
7819 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
7820 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
7821 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
7822 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
7823 | See also `current-input-mode'.") | |
284f4730 JB |
7824 | (interrupt, flow, meta, quit) |
7825 | Lisp_Object interrupt, flow, meta, quit; | |
7826 | { | |
7827 | if (!NILP (quit) | |
8c18cbfb | 7828 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
7829 | error ("set-input-mode: QUIT must be an ASCII character"); |
7830 | ||
7831 | #ifdef POLL_FOR_INPUT | |
7832 | stop_polling (); | |
7833 | #endif | |
284f4730 | 7834 | |
07de30b9 | 7835 | #ifndef DOS_NT |
2ee250ec | 7836 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 7837 | reset_sys_modes (); |
2ee250ec RS |
7838 | #endif |
7839 | ||
284f4730 JB |
7840 | #ifdef SIGIO |
7841 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 7842 | if (read_socket_hook) |
9a0f60bb KH |
7843 | { |
7844 | /* When using X, don't give the user a real choice, | |
7845 | because we haven't implemented the mechanisms to support it. */ | |
7846 | #ifdef NO_SOCK_SIGIO | |
7847 | interrupt_input = 0; | |
7848 | #else /* not NO_SOCK_SIGIO */ | |
7849 | interrupt_input = 1; | |
284f4730 | 7850 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
7851 | } |
7852 | else | |
284f4730 JB |
7853 | interrupt_input = !NILP (interrupt); |
7854 | #else /* not SIGIO */ | |
7855 | interrupt_input = 0; | |
7856 | #endif /* not SIGIO */ | |
9a0f60bb | 7857 | |
284f4730 JB |
7858 | /* Our VMS input only works by interrupts, as of now. */ |
7859 | #ifdef VMS | |
7860 | interrupt_input = 1; | |
7861 | #endif | |
9a0f60bb | 7862 | |
284f4730 | 7863 | flow_control = !NILP (flow); |
b04904fb RS |
7864 | if (NILP (meta)) |
7865 | meta_key = 0; | |
7866 | else if (EQ (meta, Qt)) | |
7867 | meta_key = 1; | |
7868 | else | |
7869 | meta_key = 2; | |
284f4730 JB |
7870 | if (!NILP (quit)) |
7871 | /* Don't let this value be out of range. */ | |
7872 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
7873 | ||
07de30b9 | 7874 | #ifndef DOS_NT |
284f4730 | 7875 | init_sys_modes (); |
2ee250ec | 7876 | #endif |
34f04431 RS |
7877 | |
7878 | #ifdef POLL_FOR_INPUT | |
7879 | poll_suppress_count = 1; | |
7880 | start_polling (); | |
7881 | #endif | |
284f4730 JB |
7882 | return Qnil; |
7883 | } | |
80645119 JB |
7884 | |
7885 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
7886 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
7887 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
7888 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
7889 | nil, Emacs is using CBREAK mode.\n\ | |
7890 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
7891 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
7892 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
7893 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
7894 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
7895 | all 8 bits as the character code.\n\ | |
80645119 JB |
7896 | QUIT is the character Emacs currently uses to quit.\n\ |
7897 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 7898 | `set-input-mode'.") |
80645119 JB |
7899 | () |
7900 | { | |
7901 | Lisp_Object val[4]; | |
7902 | ||
7903 | val[0] = interrupt_input ? Qt : Qnil; | |
7904 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 7905 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 7906 | XSETFASTINT (val[3], quit_char); |
80645119 | 7907 | |
bf673a7a | 7908 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
7909 | } |
7910 | ||
284f4730 | 7911 | \f |
6c6083a9 | 7912 | /* |
c5fdd383 | 7913 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
7914 | */ |
7915 | void | |
c5fdd383 KH |
7916 | init_kboard (kb) |
7917 | KBOARD *kb; | |
6c6083a9 | 7918 | { |
217258d5 | 7919 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 7920 | kb->Vlast_command = Qnil; |
d8bcf58e | 7921 | kb->Vprefix_arg = Qnil; |
c5fdd383 KH |
7922 | kb->kbd_queue = Qnil; |
7923 | kb->kbd_queue_has_data = 0; | |
7924 | kb->immediate_echo = 0; | |
7925 | kb->echoptr = kb->echobuf; | |
7926 | kb->echo_after_prompt = -1; | |
7927 | kb->kbd_macro_buffer = 0; | |
7928 | kb->kbd_macro_bufsize = 0; | |
7929 | kb->defining_kbd_macro = Qnil; | |
7930 | kb->Vlast_kbd_macro = Qnil; | |
7931 | kb->reference_count = 0; | |
7c97ffdc | 7932 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 7933 | kb->system_key_syms = Qnil; |
9ba47203 | 7934 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
7935 | } |
7936 | ||
7937 | /* | |
c5fdd383 | 7938 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 7939 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
7940 | * it a second time. |
7941 | */ | |
e50b8090 | 7942 | static void |
c5fdd383 KH |
7943 | wipe_kboard (kb) |
7944 | KBOARD *kb; | |
6c6083a9 | 7945 | { |
c5fdd383 KH |
7946 | if (kb->kbd_macro_buffer) |
7947 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
7948 | } |
7949 | ||
e50b8090 KH |
7950 | #ifdef MULTI_KBOARD |
7951 | void | |
7952 | delete_kboard (kb) | |
7953 | KBOARD *kb; | |
7954 | { | |
7955 | KBOARD **kbp; | |
7956 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
7957 | if (*kbp == NULL) | |
7958 | abort (); | |
7959 | *kbp = kb->next_kboard; | |
7960 | wipe_kboard (kb); | |
7961 | xfree (kb); | |
7962 | } | |
7963 | #endif | |
7964 | ||
284f4730 JB |
7965 | init_keyboard () |
7966 | { | |
284f4730 JB |
7967 | /* This is correct before outermost invocation of the editor loop */ |
7968 | command_loop_level = -1; | |
7969 | immediate_quit = 0; | |
7970 | quit_char = Ctl ('g'); | |
24597608 | 7971 | Vunread_command_events = Qnil; |
86e5706b | 7972 | unread_command_char = -1; |
87dd9b9b | 7973 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 7974 | total_keys = 0; |
9deb415a | 7975 | recent_keys_index = 0; |
beecf6a1 KH |
7976 | kbd_fetch_ptr = kbd_buffer; |
7977 | kbd_store_ptr = kbd_buffer; | |
7978 | kbd_buffer_frame_or_window | |
7979 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 7980 | #ifdef HAVE_MOUSE |
a9d77f1f | 7981 | do_mouse_tracking = Qnil; |
2eb6bfbe | 7982 | #endif |
284f4730 JB |
7983 | input_pending = 0; |
7984 | ||
4c52b668 KH |
7985 | /* This means that command_loop_1 won't try to select anything the first |
7986 | time through. */ | |
7987 | internal_last_event_frame = Qnil; | |
7988 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 7989 | |
c5fdd383 | 7990 | #ifdef MULTI_KBOARD |
aaca43a1 | 7991 | current_kboard = initial_kboard; |
6c6083a9 | 7992 | #endif |
aaca43a1 | 7993 | wipe_kboard (current_kboard); |
c5fdd383 | 7994 | init_kboard (current_kboard); |
07d2b8de | 7995 | |
beecf6a1 KH |
7996 | if (initialized) |
7997 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
7998 | ||
7999 | kbd_buffer_frame_or_window | |
8000 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 8001 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
8002 | { |
8003 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 8004 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
8005 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
8006 | SIGQUIT and we can't tell which one it will give us. */ | |
8007 | signal (SIGQUIT, interrupt_signal); | |
8008 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 8009 | } |
284f4730 JB |
8010 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
8011 | #ifdef SIGIO | |
7a80a6f6 RS |
8012 | if (!noninteractive) |
8013 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 8014 | #endif /* SIGIO */ |
284f4730 JB |
8015 | |
8016 | /* Use interrupt input by default, if it works and noninterrupt input | |
8017 | has deficiencies. */ | |
8018 | ||
8019 | #ifdef INTERRUPT_INPUT | |
8020 | interrupt_input = 1; | |
8021 | #else | |
8022 | interrupt_input = 0; | |
8023 | #endif | |
8024 | ||
8025 | /* Our VMS input only works by interrupts, as of now. */ | |
8026 | #ifdef VMS | |
8027 | interrupt_input = 1; | |
8028 | #endif | |
8029 | ||
8030 | sigfree (); | |
8031 | dribble = 0; | |
8032 | ||
8033 | if (keyboard_init_hook) | |
8034 | (*keyboard_init_hook) (); | |
8035 | ||
8036 | #ifdef POLL_FOR_INPUT | |
8037 | poll_suppress_count = 1; | |
8038 | start_polling (); | |
8039 | #endif | |
8040 | } | |
8041 | ||
df0f2ba1 | 8042 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
8043 | event header symbols and put properties on them. */ |
8044 | struct event_head { | |
8045 | Lisp_Object *var; | |
8046 | char *name; | |
8047 | Lisp_Object *kind; | |
8048 | }; | |
8049 | ||
8050 | struct event_head head_table[] = { | |
7b4aedb9 | 8051 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 8052 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 8053 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 8054 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
8055 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
8056 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
8057 | }; |
8058 | ||
8059 | syms_of_keyboard () | |
8060 | { | |
d925fb39 RS |
8061 | Qtimer_event_handler = intern ("timer-event-handler"); |
8062 | staticpro (&Qtimer_event_handler); | |
8063 | ||
2e894dab RS |
8064 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
8065 | staticpro (&Qdisabled_command_hook); | |
8066 | ||
284f4730 JB |
8067 | Qself_insert_command = intern ("self-insert-command"); |
8068 | staticpro (&Qself_insert_command); | |
8069 | ||
8070 | Qforward_char = intern ("forward-char"); | |
8071 | staticpro (&Qforward_char); | |
8072 | ||
8073 | Qbackward_char = intern ("backward-char"); | |
8074 | staticpro (&Qbackward_char); | |
8075 | ||
8076 | Qdisabled = intern ("disabled"); | |
8077 | staticpro (&Qdisabled); | |
8078 | ||
e58aa385 RS |
8079 | Qundefined = intern ("undefined"); |
8080 | staticpro (&Qundefined); | |
8081 | ||
86e5706b RS |
8082 | Qpre_command_hook = intern ("pre-command-hook"); |
8083 | staticpro (&Qpre_command_hook); | |
8084 | ||
8085 | Qpost_command_hook = intern ("post-command-hook"); | |
8086 | staticpro (&Qpost_command_hook); | |
8087 | ||
59aadc81 RS |
8088 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
8089 | staticpro (&Qpost_command_idle_hook); | |
8090 | ||
3ef14e46 RS |
8091 | Qdeferred_action_function = intern ("deferred-action-function"); |
8092 | staticpro (&Qdeferred_action_function); | |
8093 | ||
40932d1a RS |
8094 | Qcommand_hook_internal = intern ("command-hook-internal"); |
8095 | staticpro (&Qcommand_hook_internal); | |
8096 | ||
284f4730 JB |
8097 | Qfunction_key = intern ("function-key"); |
8098 | staticpro (&Qfunction_key); | |
13b5e56c | 8099 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 8100 | staticpro (&Qmouse_click); |
07de30b9 GV |
8101 | #ifdef WINDOWSNT |
8102 | Qmouse_wheel = intern ("mouse-wheel"); | |
8103 | staticpro (&Qmouse_wheel); | |
8104 | #endif | |
284f4730 | 8105 | |
598a9fa7 JB |
8106 | Qmenu_enable = intern ("menu-enable"); |
8107 | staticpro (&Qmenu_enable); | |
8108 | ||
284f4730 JB |
8109 | Qmode_line = intern ("mode-line"); |
8110 | staticpro (&Qmode_line); | |
e5d77022 JB |
8111 | Qvertical_line = intern ("vertical-line"); |
8112 | staticpro (&Qvertical_line); | |
3c370943 JB |
8113 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
8114 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
8115 | Qmenu_bar = intern ("menu-bar"); |
8116 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
8117 | |
8118 | Qabove_handle = intern ("above-handle"); | |
8119 | staticpro (&Qabove_handle); | |
8120 | Qhandle = intern ("handle"); | |
8121 | staticpro (&Qhandle); | |
8122 | Qbelow_handle = intern ("below-handle"); | |
8123 | staticpro (&Qbelow_handle); | |
db08707d RS |
8124 | Qup = intern ("up"); |
8125 | staticpro (&Qup); | |
8126 | Qdown = intern ("down"); | |
8127 | staticpro (&Qdown); | |
284f4730 | 8128 | |
cd21b839 | 8129 | Qevent_kind = intern ("event-kind"); |
284f4730 | 8130 | staticpro (&Qevent_kind); |
88cb0656 JB |
8131 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
8132 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
8133 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
8134 | staticpro (&Qevent_symbol_element_mask); | |
8135 | Qmodifier_cache = intern ("modifier-cache"); | |
8136 | staticpro (&Qmodifier_cache); | |
284f4730 | 8137 | |
48e416d4 RS |
8138 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
8139 | staticpro (&Qrecompute_lucid_menubar); | |
8140 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
8141 | staticpro (&Qactivate_menubar_hook); | |
8142 | ||
f4eef8b4 RS |
8143 | Qpolling_period = intern ("polling-period"); |
8144 | staticpro (&Qpolling_period); | |
8145 | ||
284f4730 JB |
8146 | { |
8147 | struct event_head *p; | |
8148 | ||
8149 | for (p = head_table; | |
8150 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
8151 | p++) | |
8152 | { | |
8153 | *p->var = intern (p->name); | |
8154 | staticpro (p->var); | |
8155 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 8156 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
8157 | } |
8158 | } | |
8159 | ||
7b4aedb9 JB |
8160 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
8161 | staticpro (&button_down_location); | |
88cb0656 JB |
8162 | |
8163 | { | |
8164 | int i; | |
8165 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
8166 | ||
8167 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
8168 | for (i = 0; i < len; i++) | |
86e5706b RS |
8169 | if (modifier_names[i]) |
8170 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
8171 | staticpro (&modifier_symbols); |
8172 | } | |
8173 | ||
9deb415a JB |
8174 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
8175 | staticpro (&recent_keys); | |
8176 | ||
6569cc8d | 8177 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 8178 | staticpro (&this_command_keys); |
6569cc8d | 8179 | |
03b4122a BF |
8180 | Qextended_command_history = intern ("extended-command-history"); |
8181 | Fset (Qextended_command_history, Qnil); | |
8182 | staticpro (&Qextended_command_history); | |
8183 | ||
beecf6a1 KH |
8184 | kbd_buffer_frame_or_window |
8185 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
8186 | staticpro (&kbd_buffer_frame_or_window); | |
8187 | ||
24597608 RS |
8188 | accent_key_syms = Qnil; |
8189 | staticpro (&accent_key_syms); | |
8190 | ||
284f4730 JB |
8191 | func_key_syms = Qnil; |
8192 | staticpro (&func_key_syms); | |
8193 | ||
8194 | mouse_syms = Qnil; | |
8195 | staticpro (&mouse_syms); | |
8196 | ||
07de30b9 GV |
8197 | #ifdef WINDOWSNT |
8198 | mouse_wheel_syms = Qnil; | |
8199 | staticpro (&mouse_wheel_syms); | |
8200 | #endif | |
8201 | ||
cd21b839 JB |
8202 | unread_switch_frame = Qnil; |
8203 | staticpro (&unread_switch_frame); | |
8204 | ||
fe412364 EN |
8205 | internal_last_event_frame = Qnil; |
8206 | staticpro (&internal_last_event_frame); | |
8207 | ||
8208 | read_key_sequence_cmd = Qnil; | |
8209 | staticpro (&read_key_sequence_cmd); | |
8210 | ||
a1706c30 | 8211 | defsubr (&Sevent_convert_list); |
284f4730 JB |
8212 | defsubr (&Sread_key_sequence); |
8213 | defsubr (&Srecursive_edit); | |
2eb6bfbe | 8214 | #ifdef HAVE_MOUSE |
284f4730 | 8215 | defsubr (&Strack_mouse); |
2eb6bfbe | 8216 | #endif |
284f4730 JB |
8217 | defsubr (&Sinput_pending_p); |
8218 | defsubr (&Scommand_execute); | |
8219 | defsubr (&Srecent_keys); | |
8220 | defsubr (&Sthis_command_keys); | |
6321824f | 8221 | defsubr (&Sthis_single_command_keys); |
71918b75 | 8222 | defsubr (&Sreset_this_command_lengths); |
284f4730 JB |
8223 | defsubr (&Ssuspend_emacs); |
8224 | defsubr (&Sabort_recursive_edit); | |
8225 | defsubr (&Sexit_recursive_edit); | |
8226 | defsubr (&Srecursion_depth); | |
8227 | defsubr (&Stop_level); | |
8228 | defsubr (&Sdiscard_input); | |
8229 | defsubr (&Sopen_dribble_file); | |
8230 | defsubr (&Sset_input_mode); | |
80645119 | 8231 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
8232 | defsubr (&Sexecute_extended_command); |
8233 | ||
284f4730 | 8234 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
8235 | "Last input event that was part of a command."); |
8236 | ||
186cf719 | 8237 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 8238 | "Last input event that was part of a command."); |
284f4730 | 8239 | |
7d6de002 | 8240 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 8241 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
8242 | Mouse menus give back keys that don't look like mouse events;\n\ |
8243 | this variable holds the actual mouse event that led to the menu,\n\ | |
8244 | so that you can determine whether the command was run by mouse or not."); | |
8245 | ||
284f4730 | 8246 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
8247 | "Last input event."); |
8248 | ||
186cf719 | 8249 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 8250 | "Last input event."); |
284f4730 | 8251 | |
24597608 | 8252 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
1c07d0a6 | 8253 | "List of objects to be read as next command input events."); |
284f4730 | 8254 | |
86e5706b RS |
8255 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
8256 | "If not -1, an object to be read as next command input event."); | |
8257 | ||
284f4730 JB |
8258 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
8259 | "Meta-prefix character code. Meta-foo as command input\n\ | |
8260 | turns into this character followed by foo."); | |
18cd2eeb | 8261 | XSETINT (meta_prefix_char, 033); |
284f4730 | 8262 | |
6c7178b9 | 8263 | DEFVAR_KBOARD ("last-command", Vlast_command, |
284f4730 JB |
8264 | "The last command executed. Normally a symbol with a function definition,\n\ |
8265 | but can be whatever was found in the keymap, or whatever the variable\n\ | |
18f29056 RS |
8266 | `this-command' was set to by that command.\n\ |
8267 | \n\ | |
8268 | The value `mode-exit' is special; it means that the previous command\n\ | |
8269 | read an event that told it to exit, and it did so and unread that event.\n\ | |
8270 | In other words, the present command is the event that made the previous\n\ | |
8271 | command exit.\n\ | |
8272 | \n\ | |
8273 | The value `kill-region' is special; it means that the previous command\n\ | |
8274 | was a kill command."); | |
284f4730 JB |
8275 | |
8276 | DEFVAR_LISP ("this-command", &this_command, | |
8277 | "The command now being executed.\n\ | |
8278 | The command can set this variable; whatever is put here\n\ | |
8279 | will be in `last-command' during the following command."); | |
8280 | this_command = Qnil; | |
8281 | ||
8282 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
8283 | "*Number of keyboard input characters between auto-saves.\n\ | |
8284 | Zero means disable autosaving due to number of characters typed."); | |
8285 | auto_save_interval = 300; | |
8286 | ||
8287 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
8288 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
8289 | Zero or nil means disable auto-saving due to idleness.\n\ |
8290 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 8291 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 8292 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
8293 | |
8294 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
8295 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
8296 | echo_keystrokes = 1; | |
8297 | ||
8298 | DEFVAR_INT ("polling-period", &polling_period, | |
8299 | "*Interval between polling for input during Lisp execution.\n\ | |
8300 | The reason for polling is to make C-g work to stop a running program.\n\ | |
8301 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
8302 | Polling is automatically disabled in all other cases."); | |
8303 | polling_period = 2; | |
df0f2ba1 | 8304 | |
564dc952 | 8305 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 8306 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
8307 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
8308 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 8309 | by position only."); |
aab06933 | 8310 | Vdouble_click_time = make_number (500); |
fbcd35bd | 8311 | |
03361bcc RS |
8312 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
8313 | "*Non-nil means inhibit local map menu bar menus."); | |
8314 | inhibit_local_menu_bar_menus = 0; | |
8315 | ||
284f4730 | 8316 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 8317 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
8318 | This includes key sequences read from keyboard macros.\n\ |
8319 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
8320 | num_input_keys = 0; |
8321 | ||
c43b1734 RS |
8322 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
8323 | "Number of input events read from the keyboard so far.\n\ | |
8324 | This does not include events generated by keyboard macros."); | |
8325 | num_nonmacro_input_events = 0; | |
fa90970d | 8326 | |
4c52b668 KH |
8327 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
8328 | "The frame in which the most recently read event occurred.\n\ | |
8329 | If the last event came from a keyboard macro, this is set to `macro'."); | |
8330 | Vlast_event_frame = Qnil; | |
8331 | ||
fa90970d RS |
8332 | /* This variable is set up in sysdep.c. */ |
8333 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
8334 | "The ERASE character as set by the user with stty."); | |
8335 | ||
7e85b935 | 8336 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
8337 | "Character to recognize as meaning Help.\n\ |
8338 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
8339 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 8340 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 8341 | |
ecb7cb34 KH |
8342 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
8343 | "List of input events to recognize as meaning Help.\n\ | |
8344 | These work just like the value of `help-char' (see that)."); | |
8345 | Vhelp_event_list = Qnil; | |
8346 | ||
284f4730 | 8347 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 8348 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
8349 | If the form returns a string, that string is displayed.\n\ |
8350 | If `help-form' is nil, the help char is not recognized."); | |
8351 | Vhelp_form = Qnil; | |
8352 | ||
7e85b935 RS |
8353 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
8354 | "Command to run when `help-char' character follows a prefix key.\n\ | |
8355 | This command is used only when there is no actual binding\n\ | |
8356 | for that character after that prefix key."); | |
8357 | Vprefix_help_command = Qnil; | |
8358 | ||
284f4730 JB |
8359 | DEFVAR_LISP ("top-level", &Vtop_level, |
8360 | "Form to evaluate when Emacs starts up.\n\ | |
8361 | Useful to set before you dump a modified Emacs."); | |
8362 | Vtop_level = Qnil; | |
8363 | ||
8364 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 8365 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 8366 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
8367 | The value may be a string, a vector, or a char-table.\n\ |
8368 | If it is a string or vector of length N,\n\ | |
8369 | character codes N and up are untranslated.\n\ | |
8370 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
8371 | Vkeyboard_translate_table = Qnil; |
8372 | ||
8026024c KH |
8373 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
8374 | "Non-nil means to always spawn a subshell instead of suspending,\n\ | |
8375 | even if the operating system has support for stopping a process."); | |
8376 | cannot_suspend = 0; | |
8377 | ||
284f4730 | 8378 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 8379 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 8380 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
8381 | for elements that have prompt strings.\n\ |
8382 | The menu is displayed on the screen\n\ | |
8383 | if X menus were enabled at configuration\n\ | |
8384 | time and the previous event was a mouse click prefix key.\n\ | |
8385 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
8386 | menu_prompting = 1; |
8387 | ||
8388 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
8389 | "Character to see next line of menu prompt.\n\ | |
8390 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 8391 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
8392 | |
8393 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
8394 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
8395 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
8396 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 8397 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
8398 | all input characters will have the control modifier applied to them.\n\ |
8399 | \n\ | |
9d9f56dd | 8400 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 8401 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 8402 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 8403 | cancels any modification."); |
9fa4395d | 8404 | extra_keyboard_modifiers = 0; |
86e5706b RS |
8405 | |
8406 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
8407 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
8408 | The command loop sets this to nil before each command,\n\ | |
8409 | and tests the value when the command returns.\n\ | |
8410 | Buffer modification stores t in this variable."); | |
8411 | Vdeactivate_mark = Qnil; | |
8412 | ||
b0f2a7bf KH |
8413 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
8414 | "Temporary storage of pre-command-hook or post-command-hook."); | |
8415 | Vcommand_hook_internal = Qnil; | |
8416 | ||
86e5706b | 8417 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 8418 | "Normal hook run before each command is executed.\n\ |
59aadc81 | 8419 | Errors running the hook are caught and ignored."); |
86e5706b RS |
8420 | Vpre_command_hook = Qnil; |
8421 | ||
8422 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 8423 | "Normal hook run after each command is executed.\n\ |
59aadc81 | 8424 | Errors running the hook are caught and ignored."); |
86e5706b | 8425 | Vpost_command_hook = Qnil; |
48e416d4 | 8426 | |
59aadc81 RS |
8427 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
8428 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
8429 | Errors running the hook are caught and ignored.\n\ |
8430 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
8431 | Vpost_command_idle_hook = Qnil; |
8432 | ||
8433 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 8434 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
8435 | This is measured in microseconds."); |
8436 | post_command_idle_delay = 100000; | |
8437 | ||
cdb9d665 RS |
8438 | #if 0 |
8439 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
8440 | "Normal hook run when clearing the echo area."); | |
8441 | #endif | |
8442 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
8443 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
8444 | ||
48e416d4 RS |
8445 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
8446 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
8447 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 8448 | |
9f9c0e27 RS |
8449 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
8450 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 8451 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 8452 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 8453 | |
217258d5 KH |
8454 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
8455 | Voverriding_terminal_local_map, | |
779b34df | 8456 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 8457 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
8458 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
8459 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
8460 | set up a different keymap for reading the next command."); | |
217258d5 | 8461 | |
9dd3131c RS |
8462 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
8463 | "Keymap that overrides all other local keymaps.\n\ | |
8464 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
8465 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
8466 | Voverriding_local_map = Qnil; | |
8467 | ||
d0a49716 RS |
8468 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
8469 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
8470 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
8471 | and the minor mode maps regardless of `overriding-local-map'."); | |
8472 | Voverriding_local_map_menu_flag = Qnil; | |
8473 | ||
7f07d5ca RS |
8474 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
8475 | "Keymap defining bindings for special events to execute at low level."); | |
8476 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
8477 | ||
71edead1 | 8478 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 8479 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 8480 | |
7c97ffdc | 8481 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 8482 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 8483 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 8484 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 8485 | and SYMBOL is its name."); |
8a792f3a RS |
8486 | |
8487 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
8488 | "List of deferred actions to be performed at a later time.\n\ | |
8489 | The precise format isn't relevant here; we just check whether it is nil."); | |
8490 | Vdeferred_action_list = Qnil; | |
8491 | ||
8492 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
8493 | "Function to call to handle deferred actions, after each command.\n\ | |
8494 | This function is called with no arguments after each command\n\ | |
8495 | whenever `deferred-action-list' is non-nil."); | |
8496 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
8497 | |
8498 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
8499 | "Non-nil means show the equivalent key-binding when M-x command has one.\n\ | |
8500 | The value can be a length of time to show the message for.\n\ | |
8501 | If the value is non-nil and not a number, we wait 2 seconds."); | |
8502 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 8503 | |
c04cbc3b | 8504 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 8505 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 8506 | Vtimer_list = Qnil; |
d9d4c147 KH |
8507 | |
8508 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
8509 | "List of active idle-time timers in order of increasing time"); | |
8510 | Vtimer_idle_list = Qnil; | |
284f4730 JB |
8511 | } |
8512 | ||
8513 | keys_of_keyboard () | |
8514 | { | |
8515 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
8516 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
8517 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
8518 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
8519 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
8520 | |
8521 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
8522 | "handle-delete-frame"); | |
8523 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
8524 | "ignore-event"); | |
8525 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
8526 | "ignore-event"); | |
284f4730 | 8527 | } |