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 | ||
a59b172a RS |
147 | extern int message_enable_multibyte; |
148 | ||
284f4730 JB |
149 | extern struct backtrace *backtrace_list; |
150 | ||
151 | /* Nonzero means do menu prompting. */ | |
152 | static int menu_prompting; | |
153 | ||
154 | /* Character to see next line of menu prompt. */ | |
155 | static Lisp_Object menu_prompt_more_char; | |
156 | ||
157 | /* For longjmp to where kbd input is being done. */ | |
158 | static jmp_buf getcjmp; | |
159 | ||
160 | /* True while doing kbd input. */ | |
161 | int waiting_for_input; | |
162 | ||
163 | /* True while displaying for echoing. Delays C-g throwing. */ | |
164 | static int echoing; | |
165 | ||
1fc93d49 RS |
166 | /* True means we can start echoing at the next input pause |
167 | even though there is something in the echo area. */ | |
0c04a67e | 168 | static char *ok_to_echo_at_next_pause; |
1fc93d49 | 169 | |
03361bcc RS |
170 | /* Nonzero means disregard local maps for the menu bar. */ |
171 | static int inhibit_local_menu_bar_menus; | |
172 | ||
80e4aa30 | 173 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
174 | int immediate_quit; |
175 | ||
fa90970d RS |
176 | /* The user's ERASE setting. */ |
177 | Lisp_Object Vtty_erase_char; | |
178 | ||
284f4730 | 179 | /* Character to recognize as the help char. */ |
7e85b935 | 180 | Lisp_Object Vhelp_char; |
284f4730 | 181 | |
ecb7cb34 KH |
182 | /* List of other event types to recognize as meaning "help". */ |
183 | Lisp_Object Vhelp_event_list; | |
184 | ||
284f4730 JB |
185 | /* Form to execute when help char is typed. */ |
186 | Lisp_Object Vhelp_form; | |
187 | ||
7e85b935 RS |
188 | /* Command to run when the help character follows a prefix key. */ |
189 | Lisp_Object Vprefix_help_command; | |
190 | ||
9f9c0e27 RS |
191 | /* List of items that should move to the end of the menu bar. */ |
192 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 193 | |
6526ab49 RS |
194 | /* Non-nil means show the equivalent key-binding for |
195 | any M-x command that has one. | |
196 | The value can be a length of time to show the message for. | |
197 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
198 | Lisp_Object Vsuggest_key_bindings; | |
199 | ||
284f4730 JB |
200 | /* Character that causes a quit. Normally C-g. |
201 | ||
202 | If we are running on an ordinary terminal, this must be an ordinary | |
203 | ASCII char, since we want to make it our interrupt character. | |
204 | ||
205 | If we are not running on an ordinary terminal, it still needs to be | |
206 | an ordinary ASCII char. This character needs to be recognized in | |
207 | the input interrupt handler. At this point, the keystroke is | |
208 | represented as a struct input_event, while the desired quit | |
209 | character is specified as a lispy event. The mapping from struct | |
210 | input_events to lispy events cannot run in an interrupt handler, | |
211 | and the reverse mapping is difficult for anything but ASCII | |
212 | keystrokes. | |
213 | ||
214 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
215 | ASCII character. */ | |
216 | int quit_char; | |
217 | ||
218 | extern Lisp_Object current_global_map; | |
219 | extern int minibuf_level; | |
220 | ||
9dd3131c RS |
221 | /* If non-nil, this is a map that overrides all other local maps. */ |
222 | Lisp_Object Voverriding_local_map; | |
223 | ||
d0a49716 RS |
224 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
225 | Lisp_Object Voverriding_local_map_menu_flag; | |
226 | ||
7f07d5ca RS |
227 | /* Keymap that defines special misc events that should |
228 | be processed immediately at a low level. */ | |
229 | Lisp_Object Vspecial_event_map; | |
230 | ||
284f4730 JB |
231 | /* Current depth in recursive edits. */ |
232 | int command_loop_level; | |
233 | ||
234 | /* Total number of times command_loop has read a key sequence. */ | |
235 | int num_input_keys; | |
236 | ||
237 | /* Last input character read as a command. */ | |
238 | Lisp_Object last_command_char; | |
239 | ||
7d6de002 RS |
240 | /* Last input character read as a command, not counting menus |
241 | reached by the mouse. */ | |
242 | Lisp_Object last_nonmenu_event; | |
243 | ||
284f4730 JB |
244 | /* Last input character read for any purpose. */ |
245 | Lisp_Object last_input_char; | |
246 | ||
dbc4e1c1 | 247 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 248 | Lisp_Object Vunread_command_events; |
284f4730 | 249 | |
86e5706b RS |
250 | /* If not -1, an event to be read as subsequent command input. */ |
251 | int unread_command_char; | |
252 | ||
cd21b839 JB |
253 | /* If not Qnil, this is a switch-frame event which we decided to put |
254 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 255 | next command input, after any unread_command_events. |
8f805655 JB |
256 | |
257 | read_key_sequence uses this to delay switch-frame events until the | |
258 | end of the key sequence; Fread_char uses it to put off switch-frame | |
259 | events until a non-ASCII event is acceptable as input. */ | |
260 | Lisp_Object unread_switch_frame; | |
cd21b839 | 261 | |
9fa4395d RS |
262 | /* A mask of extra modifier bits to put into every keyboard char. */ |
263 | int extra_keyboard_modifiers; | |
264 | ||
284f4730 JB |
265 | /* Char to use as prefix when a meta character is typed in. |
266 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
267 | ||
268 | Lisp_Object meta_prefix_char; | |
269 | ||
270 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
271 | static int last_non_minibuf_size; | |
272 | ||
06ef7355 | 273 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
274 | static Lisp_Object Vauto_save_timeout; |
275 | ||
276 | /* Total number of times read_char has returned. */ | |
4abfba1f | 277 | int num_input_events; |
284f4730 | 278 | |
51172b6d | 279 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 280 | int num_nonmacro_input_events; |
51172b6d | 281 | |
284f4730 JB |
282 | /* Auto-save automatically when this many characters have been typed |
283 | since the last time. */ | |
284 | ||
285 | static int auto_save_interval; | |
286 | ||
c43b1734 | 287 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
288 | |
289 | int last_auto_save; | |
290 | ||
284f4730 | 291 | /* The command being executed by the command loop. |
6c7178b9 KH |
292 | Commands may set this, and the value set will be copied into |
293 | current_kboard->Vlast_command instead of the actual command. */ | |
284f4730 JB |
294 | Lisp_Object this_command; |
295 | ||
b453f72e KH |
296 | /* The value of point when the last command was executed. */ |
297 | int last_point_position; | |
298 | ||
047688cb RS |
299 | /* The buffer that was current when the last command was started. */ |
300 | Lisp_Object last_point_position_buffer; | |
301 | ||
4c52b668 KH |
302 | /* The frame in which the last input event occurred, or Qmacro if the |
303 | last event came from a macro. We use this to determine when to | |
304 | generate switch-frame events. This may be cleared by functions | |
305 | like Fselect_frame, to make sure that a switch-frame event is | |
306 | generated by the next character. */ | |
307 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
308 | |
309 | /* A user-visible version of the above, intended to allow users to | |
310 | figure out where the last event came from, if the event doesn't | |
311 | carry that information itself (i.e. if it was a character). */ | |
312 | Lisp_Object Vlast_event_frame; | |
313 | ||
1113d9db JB |
314 | /* The timestamp of the last input event we received from the X server. |
315 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
316 | unsigned long last_event_timestamp; |
317 | ||
318 | Lisp_Object Qself_insert_command; | |
319 | Lisp_Object Qforward_char; | |
320 | Lisp_Object Qbackward_char; | |
e58aa385 | 321 | Lisp_Object Qundefined; |
d925fb39 | 322 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
323 | |
324 | /* read_key_sequence stores here the command definition of the | |
325 | key sequence that it reads. */ | |
326 | Lisp_Object read_key_sequence_cmd; | |
327 | ||
328 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
329 | Lisp_Object Vtop_level; | |
330 | ||
331 | /* User-supplied string to translate input characters through. */ | |
332 | Lisp_Object Vkeyboard_translate_table; | |
333 | ||
334 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
335 | extern Lisp_Object Vfunction_key_map; | |
336 | ||
e0301c07 RS |
337 | /* Another keymap that maps key sequences into key sequences. |
338 | This one takes precedence over ordinary definitions. */ | |
339 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 340 | |
86e5706b RS |
341 | /* Non-nil means deactivate the mark at end of this command. */ |
342 | Lisp_Object Vdeactivate_mark; | |
343 | ||
48e416d4 RS |
344 | /* Menu bar specified in Lucid Emacs fashion. */ |
345 | ||
346 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
347 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
348 | ||
cdb9d665 RS |
349 | Lisp_Object Qecho_area_clear_hook; |
350 | ||
86e5706b | 351 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
352 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
353 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 354 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
355 | /* Hook run after a command if there's no more input soon. */ |
356 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
357 | ||
358 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
359 | int post_command_idle_delay; | |
86e5706b | 360 | |
8a792f3a RS |
361 | /* List of deferred actions to be performed at a later time. |
362 | The precise format isn't relevant here; we just check whether it is nil. */ | |
363 | Lisp_Object Vdeferred_action_list; | |
364 | ||
365 | /* Function to call to handle deferred actions, when there are any. */ | |
366 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 367 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 368 | |
284f4730 JB |
369 | /* File in which we write all commands we read. */ |
370 | FILE *dribble; | |
371 | ||
372 | /* Nonzero if input is available. */ | |
373 | int input_pending; | |
374 | ||
b04904fb RS |
375 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
376 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
377 | ||
284f4730 JB |
378 | int meta_key; |
379 | ||
380 | extern char *pending_malloc_warning; | |
381 | ||
beecf6a1 KH |
382 | /* Circular buffer for pre-read keyboard input. */ |
383 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
384 | ||
385 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
386 | ||
387 | The interrupt-level event handlers will never enqueue an event on a | |
388 | frame which is not in Vframe_list, and once an event is dequeued, | |
389 | internal_last_event_frame or the event itself points to the frame. | |
390 | So that's all fine. | |
391 | ||
392 | But while the event is sitting in the queue, it's completely | |
393 | unprotected. Suppose the user types one command which will run for | |
394 | a while and then delete a frame, and then types another event at | |
395 | the frame that will be deleted, before the command gets around to | |
396 | it. Suppose there are no references to this frame elsewhere in | |
397 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
398 | have an event referring to a freed frame, which will crash Emacs | |
399 | when it is dequeued. | |
400 | ||
401 | Similar things happen when an event on a scroll bar is enqueued; the | |
402 | window may be deleted while the event is in the queue. | |
403 | ||
404 | So, we use this vector to protect the frame_or_window field in the | |
405 | event queue. That way, they'll be dequeued as dead frames or | |
406 | windows, but still valid lisp objects. | |
407 | ||
408 | If kbd_buffer[i].kind != no_event, then | |
409 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
410 | == kbd_buffer[i].frame_or_window. */ | |
411 | static Lisp_Object kbd_buffer_frame_or_window; | |
412 | ||
413 | /* Pointer to next available character in kbd_buffer. | |
414 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
415 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
416 | next available char is in kbd_buffer[0]. */ | |
417 | static struct input_event *kbd_fetch_ptr; | |
418 | ||
419 | /* Pointer to next place to store character in kbd_buffer. This | |
420 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
421 | character should go in kbd_buffer[0]. */ | |
422 | static volatile struct input_event *kbd_store_ptr; | |
423 | ||
424 | /* The above pair of variables forms a "queue empty" flag. When we | |
425 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
426 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
427 | there is input available iff the two pointers are not equal. | |
428 | ||
429 | Why not just have a flag set and cleared by the enqueuing and | |
430 | dequeuing functions? Such a flag could be screwed up by interrupts | |
431 | at inopportune times. */ | |
432 | ||
f3253854 | 433 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
434 | mouse moves, and motion events will appear in the input stream. |
435 | Otherwise, mouse motion is ignored. */ | |
436 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 437 | |
284f4730 JB |
438 | /* Symbols to head events. */ |
439 | Lisp_Object Qmouse_movement; | |
3c370943 | 440 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 441 | Lisp_Object Qswitch_frame; |
bbdc2092 | 442 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
443 | Lisp_Object Qiconify_frame; |
444 | Lisp_Object Qmake_frame_visible; | |
cd21b839 | 445 | |
284f4730 JB |
446 | /* Symbols to denote kinds of events. */ |
447 | Lisp_Object Qfunction_key; | |
448 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
449 | #ifdef WINDOWSNT |
450 | Lisp_Object Qmouse_wheel; | |
451 | #endif | |
284f4730 | 452 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
453 | |
454 | /* Properties of event headers. */ | |
455 | Lisp_Object Qevent_kind; | |
88cb0656 | 456 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 457 | |
598a9fa7 JB |
458 | Lisp_Object Qmenu_enable; |
459 | ||
0a7f1fc0 JB |
460 | /* An event header symbol HEAD may have a property named |
461 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
462 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
463 | mask of modifiers applied to it. If present, this is used to help | |
464 | speed up parse_modifiers. */ | |
465 | Lisp_Object Qevent_symbol_element_mask; | |
466 | ||
467 | /* An unmodified event header BASE may have a property named | |
468 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
469 | modified versions of BASE. If present, this helps speed up | |
470 | apply_modifiers. */ | |
471 | Lisp_Object Qmodifier_cache; | |
472 | ||
5ec75a55 | 473 | /* Symbols to use for parts of windows. */ |
284f4730 | 474 | Lisp_Object Qmode_line; |
e5d77022 | 475 | Lisp_Object Qvertical_line; |
3c370943 | 476 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
477 | Lisp_Object Qmenu_bar; |
478 | ||
479 | extern Lisp_Object Qmenu_enable; | |
284f4730 | 480 | |
f4255cd1 JB |
481 | Lisp_Object recursive_edit_unwind (), command_loop (); |
482 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 483 | Lisp_Object Qextended_command_history; |
c04cbc3b | 484 | EMACS_TIME timer_check (); |
284f4730 | 485 | |
2c834fb3 KH |
486 | extern char *x_get_keysym_name (); |
487 | ||
8eb4d8ef RS |
488 | static void record_menu_key (); |
489 | ||
6e4e64a8 RS |
490 | void swallow_events (); |
491 | ||
f4eef8b4 RS |
492 | Lisp_Object Qpolling_period; |
493 | ||
d9d4c147 | 494 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
495 | Lisp_Object Vtimer_list; |
496 | ||
d9d4c147 KH |
497 | /* List of idle time timers. Appears in order of next scheduled event. */ |
498 | Lisp_Object Vtimer_idle_list; | |
499 | ||
87dd9b9b RS |
500 | /* Incremented whenever a timer is run. */ |
501 | int timers_run; | |
502 | ||
a9f16aa9 KH |
503 | extern Lisp_Object Vprint_level, Vprint_length; |
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; | |
301738ed RS |
615 | if ((ptr - current_kboard->echobuf) + name->size_byte + 4 |
616 | > ECHOBUFSIZE) | |
284f4730 | 617 | return; |
301738ed RS |
618 | bcopy (name->data, ptr, name->size_byte); |
619 | ptr += name->size_byte; | |
284f4730 JB |
620 | } |
621 | ||
c5fdd383 | 622 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 623 | && help_char_p (c)) |
284f4730 JB |
624 | { |
625 | strcpy (ptr, " (Type ? for further options)"); | |
626 | ptr += strlen (ptr); | |
627 | } | |
628 | ||
629 | *ptr = 0; | |
c5fdd383 | 630 | current_kboard->echoptr = ptr; |
284f4730 | 631 | |
3dbd9ee4 | 632 | echo_now (); |
284f4730 JB |
633 | } |
634 | } | |
635 | ||
636 | /* Temporarily add a dash to the end of the echo string if it's not | |
637 | empty, so that it serves as a mini-prompt for the very next character. */ | |
638 | ||
639 | echo_dash () | |
640 | { | |
c5fdd383 KH |
641 | if (!current_kboard->immediate_echo |
642 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 643 | return; |
7a80a6f6 | 644 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
645 | if (current_kboard->echo_after_prompt |
646 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 647 | return; |
4bafa972 | 648 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 649 | if (current_kboard->echoptr == 0) |
4bafa972 | 650 | return; |
284f4730 JB |
651 | |
652 | /* Put a dash at the end of the buffer temporarily, | |
653 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
654 | current_kboard->echoptr[0] = '-'; |
655 | current_kboard->echoptr[1] = 0; | |
284f4730 | 656 | |
3dbd9ee4 | 657 | echo_now (); |
284f4730 JB |
658 | } |
659 | ||
660 | /* Display the current echo string, and begin echoing if not already | |
661 | doing so. */ | |
662 | ||
07a59269 | 663 | void |
3dbd9ee4 | 664 | echo_now () |
284f4730 | 665 | { |
c5fdd383 | 666 | if (!current_kboard->immediate_echo) |
284f4730 JB |
667 | { |
668 | int i; | |
c5fdd383 | 669 | current_kboard->immediate_echo = 1; |
284f4730 JB |
670 | |
671 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
672 | { |
673 | Lisp_Object c; | |
674 | c = XVECTOR (this_command_keys)->contents[i]; | |
675 | if (! (EVENT_HAS_PARAMETERS (c) | |
676 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
677 | echo_char (c); | |
678 | } | |
284f4730 JB |
679 | echo_dash (); |
680 | } | |
681 | ||
682 | echoing = 1; | |
301738ed RS |
683 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
684 | ! NILP (current_buffer->enable_multibyte_characters)); | |
685 | ||
284f4730 JB |
686 | echoing = 0; |
687 | ||
688 | if (waiting_for_input && !NILP (Vquit_flag)) | |
689 | quit_throw_to_read_char (); | |
690 | } | |
691 | ||
692 | /* Turn off echoing, for the start of a new command. */ | |
693 | ||
694 | cancel_echoing () | |
695 | { | |
c5fdd383 KH |
696 | current_kboard->immediate_echo = 0; |
697 | current_kboard->echoptr = current_kboard->echobuf; | |
698 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 699 | ok_to_echo_at_next_pause = 0; |
284f4730 JB |
700 | } |
701 | ||
702 | /* Return the length of the current echo string. */ | |
703 | ||
704 | static int | |
705 | echo_length () | |
706 | { | |
c5fdd383 | 707 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
708 | } |
709 | ||
710 | /* Truncate the current echo message to its first LEN chars. | |
711 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 712 | switches frames while entering a key sequence. */ |
284f4730 JB |
713 | |
714 | static void | |
715 | echo_truncate (len) | |
716 | int len; | |
717 | { | |
c5fdd383 KH |
718 | current_kboard->echobuf[len] = '\0'; |
719 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 720 | truncate_echo_area (len); |
284f4730 JB |
721 | } |
722 | ||
723 | \f | |
724 | /* Functions for manipulating this_command_keys. */ | |
725 | static void | |
726 | add_command_key (key) | |
727 | Lisp_Object key; | |
728 | { | |
6569cc8d JB |
729 | int size = XVECTOR (this_command_keys)->size; |
730 | ||
71918b75 RS |
731 | /* If reset-this-command-length was called recently, obey it now. |
732 | See the doc string of that function for an explanation of why. */ | |
733 | if (before_command_restore_flag) | |
734 | { | |
735 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
736 | if (this_command_key_count < this_single_command_key_start) |
737 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
738 | echo_truncate (before_command_echo_length_1); |
739 | before_command_restore_flag = 0; | |
740 | } | |
741 | ||
6569cc8d | 742 | if (this_command_key_count >= size) |
284f4730 | 743 | { |
9b8eb840 | 744 | Lisp_Object new_keys; |
6569cc8d | 745 | |
9b8eb840 | 746 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
747 | bcopy (XVECTOR (this_command_keys)->contents, |
748 | XVECTOR (new_keys)->contents, | |
8f805655 | 749 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
750 | |
751 | this_command_keys = new_keys; | |
284f4730 | 752 | } |
6569cc8d JB |
753 | |
754 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
755 | } |
756 | \f | |
757 | Lisp_Object | |
758 | recursive_edit_1 () | |
759 | { | |
760 | int count = specpdl_ptr - specpdl; | |
761 | Lisp_Object val; | |
762 | ||
763 | if (command_loop_level > 0) | |
764 | { | |
765 | specbind (Qstandard_output, Qt); | |
766 | specbind (Qstandard_input, Qt); | |
767 | } | |
768 | ||
769 | val = command_loop (); | |
770 | if (EQ (val, Qt)) | |
771 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
772 | /* Handle throw from read_minibuf when using minibuffer |
773 | while it's active but we're in another window. */ | |
774 | if (STRINGP (val)) | |
775 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 776 | |
cb5df6ae | 777 | return unbind_to (count, Qnil); |
284f4730 JB |
778 | } |
779 | ||
780 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 781 | |
07a59269 | 782 | void |
284f4730 JB |
783 | record_auto_save () |
784 | { | |
c43b1734 | 785 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 786 | } |
5846638c RS |
787 | |
788 | /* Make an auto save happen as soon as possible at command level. */ | |
789 | ||
790 | force_auto_save_soon () | |
791 | { | |
792 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
793 | |
794 | record_asynch_buffer_change (); | |
5846638c | 795 | } |
284f4730 | 796 | \f |
284f4730 JB |
797 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
798 | "Invoke the editor command loop recursively.\n\ | |
799 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
800 | that tells this function to return.\n\ | |
801 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
802 | This function is called by the editor initialization to begin editing.") | |
803 | () | |
804 | { | |
805 | int count = specpdl_ptr - specpdl; | |
806 | Lisp_Object val; | |
807 | ||
808 | command_loop_level++; | |
809 | update_mode_lines = 1; | |
810 | ||
811 | record_unwind_protect (recursive_edit_unwind, | |
812 | (command_loop_level | |
813 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
814 | ? Fcurrent_buffer () | |
815 | : Qnil); | |
816 | recursive_edit_1 (); | |
817 | return unbind_to (count, Qnil); | |
818 | } | |
819 | ||
820 | Lisp_Object | |
821 | recursive_edit_unwind (buffer) | |
822 | Lisp_Object buffer; | |
823 | { | |
824 | if (!NILP (buffer)) | |
825 | Fset_buffer (buffer); | |
826 | ||
827 | command_loop_level--; | |
828 | update_mode_lines = 1; | |
829 | return Qnil; | |
830 | } | |
831 | \f | |
604ccd1d | 832 | static void |
1e8bd3da | 833 | any_kboard_state () |
604ccd1d | 834 | { |
1e8bd3da RS |
835 | #ifdef MULTI_KBOARD |
836 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
837 | it will right away be read by read_key_sequence, | |
838 | and then if we do switch KBOARDS, it will go into the side | |
839 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 840 | if (CONSP (Vunread_command_events)) |
4524b161 | 841 | { |
c5fdd383 KH |
842 | current_kboard->kbd_queue |
843 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
844 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 845 | } |
604ccd1d | 846 | Vunread_command_events = Qnil; |
1e8bd3da RS |
847 | #endif |
848 | single_kboard = 0; | |
849 | #endif | |
604ccd1d | 850 | } |
1e8bd3da RS |
851 | |
852 | /* Switch to the single-kboard state, making current_kboard | |
853 | the only KBOARD from which further input is accepted. */ | |
854 | ||
855 | void | |
856 | single_kboard_state () | |
857 | { | |
858 | #ifdef MULTI_KBOARD | |
859 | single_kboard = 1; | |
604ccd1d | 860 | #endif |
1e8bd3da RS |
861 | } |
862 | ||
863 | /* Maintain a stack of kboards, so other parts of Emacs | |
864 | can switch temporarily to the kboard of a given frame | |
865 | and then revert to the previous status. */ | |
866 | ||
867 | struct kboard_stack | |
868 | { | |
869 | KBOARD *kboard; | |
870 | struct kboard_stack *next; | |
871 | }; | |
872 | ||
873 | static struct kboard_stack *kboard_stack; | |
874 | ||
875 | void | |
876 | push_frame_kboard (f) | |
877 | FRAME_PTR f; | |
878 | { | |
ab48365b | 879 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
880 | struct kboard_stack *p |
881 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
882 | ||
883 | p->next = kboard_stack; | |
884 | p->kboard = current_kboard; | |
885 | kboard_stack = p; | |
886 | ||
887 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 888 | #endif |
1e8bd3da RS |
889 | } |
890 | ||
891 | void | |
892 | pop_frame_kboard () | |
893 | { | |
ab48365b | 894 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
895 | struct kboard_stack *p = kboard_stack; |
896 | current_kboard = p->kboard; | |
897 | kboard_stack = p->next; | |
898 | xfree (p); | |
ab48365b | 899 | #endif |
1e8bd3da RS |
900 | } |
901 | \f | |
902 | /* Handle errors that are not handled at inner levels | |
903 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 904 | |
284f4730 JB |
905 | Lisp_Object |
906 | cmd_error (data) | |
907 | Lisp_Object data; | |
a1341f75 | 908 | { |
a9f16aa9 | 909 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
910 | char macroerror[50]; |
911 | ||
912 | if (!NILP (executing_macro)) | |
913 | { | |
914 | if (executing_macro_iterations == 1) | |
915 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
916 | else | |
917 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
918 | executing_macro_iterations); | |
919 | } | |
920 | else | |
921 | *macroerror = 0; | |
a9f16aa9 | 922 | |
a1341f75 RS |
923 | Vstandard_output = Qt; |
924 | Vstandard_input = Qt; | |
925 | Vexecuting_macro = Qnil; | |
9f58e89e | 926 | executing_macro = Qnil; |
d8bcf58e | 927 | current_kboard->Vprefix_arg = Qnil; |
df0f2ba1 | 928 | cancel_echoing (); |
a9f16aa9 KH |
929 | |
930 | /* Avoid unquittable loop if data contains a circular list. */ | |
931 | old_level = Vprint_level; | |
932 | old_length = Vprint_length; | |
0c04a67e RS |
933 | XSETFASTINT (Vprint_level, 10); |
934 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 935 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
936 | Vprint_level = old_level; |
937 | Vprint_length = old_length; | |
a1341f75 RS |
938 | |
939 | Vquit_flag = Qnil; | |
940 | ||
941 | Vinhibit_quit = Qnil; | |
c5fdd383 | 942 | #ifdef MULTI_KBOARD |
1e8bd3da | 943 | any_kboard_state (); |
ff4b06d3 | 944 | #endif |
a1341f75 RS |
945 | |
946 | return make_number (0); | |
947 | } | |
948 | ||
301738ed RS |
949 | /* Take actions on handling an error. DATA is the data that describes |
950 | the error. | |
951 | ||
952 | CONTEXT is a C-string containing ASCII characters only which | |
953 | describes the context in which the error happened. If we need to | |
954 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
955 | string. */ | |
956 | ||
07a59269 | 957 | void |
a1341f75 RS |
958 | cmd_error_internal (data, context) |
959 | Lisp_Object data; | |
960 | char *context; | |
284f4730 | 961 | { |
284f4730 | 962 | Lisp_Object stream; |
284f4730 JB |
963 | |
964 | Vquit_flag = Qnil; | |
965 | Vinhibit_quit = Qt; | |
284f4730 JB |
966 | echo_area_glyphs = 0; |
967 | ||
ff11dfa1 | 968 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
969 | yet, or we're not interactive, it's best to dump this message out |
970 | to stderr and exit. */ | |
ff11dfa1 | 971 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
972 | || noninteractive) |
973 | stream = Qexternal_debugging_output; | |
974 | else | |
975 | { | |
976 | Fdiscard_input (); | |
977 | bitch_at_user (); | |
978 | stream = Qt; | |
979 | } | |
980 | ||
a1341f75 RS |
981 | if (context != 0) |
982 | write_string_1 (context, -1, stream); | |
983 | ||
22a51344 | 984 | print_error_message (data, stream); |
284f4730 | 985 | |
ff11dfa1 | 986 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 987 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
ff11dfa1 | 988 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
989 | || noninteractive) |
990 | { | |
991 | Fterpri (stream); | |
992 | Fkill_emacs (make_number (-1)); | |
993 | } | |
284f4730 JB |
994 | } |
995 | \f | |
996 | Lisp_Object command_loop_1 (); | |
997 | Lisp_Object command_loop_2 (); | |
998 | Lisp_Object top_level_1 (); | |
999 | ||
1000 | /* Entry to editor-command-loop. | |
1001 | This level has the catches for exiting/returning to editor command loop. | |
1002 | It returns nil to exit recursive edit, t to abort it. */ | |
1003 | ||
1004 | Lisp_Object | |
1005 | command_loop () | |
1006 | { | |
1007 | if (command_loop_level > 0 || minibuf_level > 0) | |
1008 | { | |
1009 | return internal_catch (Qexit, command_loop_2, Qnil); | |
1010 | } | |
1011 | else | |
1012 | while (1) | |
1013 | { | |
1014 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1015 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
df0f2ba1 | 1016 | |
284f4730 JB |
1017 | /* End of file in -batch run causes exit here. */ |
1018 | if (noninteractive) | |
1019 | Fkill_emacs (Qt); | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | /* Here we catch errors in execution of commands within the | |
1024 | editing loop, and reenter the editing loop. | |
1025 | When there is an error, cmd_error runs and returns a non-nil | |
1026 | value to us. A value of nil means that cmd_loop_1 itself | |
1027 | returned due to end of file (or end of kbd macro). */ | |
1028 | ||
1029 | Lisp_Object | |
1030 | command_loop_2 () | |
1031 | { | |
1032 | register Lisp_Object val; | |
1033 | ||
1034 | do | |
1035 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1036 | while (!NILP (val)); | |
1037 | ||
1038 | return Qnil; | |
1039 | } | |
1040 | ||
1041 | Lisp_Object | |
1042 | top_level_2 () | |
1043 | { | |
1044 | return Feval (Vtop_level); | |
1045 | } | |
1046 | ||
1047 | Lisp_Object | |
1048 | top_level_1 () | |
1049 | { | |
1050 | /* On entry to the outer level, run the startup file */ | |
1051 | if (!NILP (Vtop_level)) | |
1052 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1053 | else if (!NILP (Vpurify_flag)) | |
1054 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1055 | else | |
1056 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1057 | return Qnil; | |
1058 | } | |
1059 | ||
1060 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1061 | "Exit all recursive editing levels.") | |
1062 | () | |
1063 | { | |
1064 | Fthrow (Qtop_level, Qnil); | |
1065 | } | |
1066 | ||
1067 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1068 | "Exit from the innermost recursive edit or minibuffer.") | |
1069 | () | |
1070 | { | |
1071 | if (command_loop_level > 0 || minibuf_level > 0) | |
1072 | Fthrow (Qexit, Qnil); | |
1073 | ||
1074 | error ("No recursive edit is in progress"); | |
1075 | } | |
1076 | ||
1077 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1078 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1079 | () | |
1080 | { | |
1081 | if (command_loop_level > 0 || minibuf_level > 0) | |
1082 | Fthrow (Qexit, Qt); | |
1083 | ||
1084 | error ("No recursive edit is in progress"); | |
1085 | } | |
1086 | \f | |
1087 | /* This is the actual command reading loop, | |
1088 | sans error-handling encapsulation. */ | |
1089 | ||
1090 | Lisp_Object Fcommand_execute (); | |
1091 | static int read_key_sequence (); | |
68f297c5 | 1092 | void safe_run_hooks (); |
284f4730 JB |
1093 | |
1094 | Lisp_Object | |
1095 | command_loop_1 () | |
1096 | { | |
48e416d4 | 1097 | Lisp_Object cmd, tem; |
37cd9f30 | 1098 | int lose, lose2; |
284f4730 JB |
1099 | int nonundocount; |
1100 | Lisp_Object keybuf[30]; | |
1101 | int i; | |
1102 | int no_redisplay; | |
1103 | int no_direct; | |
86e5706b RS |
1104 | int prev_modiff; |
1105 | struct buffer *prev_buffer; | |
c5fdd383 | 1106 | #ifdef MULTI_KBOARD |
1e8bd3da | 1107 | int was_locked = single_kboard; |
bded54dd | 1108 | #endif |
284f4730 | 1109 | |
d9b641bb | 1110 | current_kboard->Vprefix_arg = Qnil; |
86e5706b | 1111 | Vdeactivate_mark = Qnil; |
284f4730 | 1112 | waiting_for_input = 0; |
df0f2ba1 | 1113 | cancel_echoing (); |
284f4730 | 1114 | |
284f4730 JB |
1115 | nonundocount = 0; |
1116 | no_redisplay = 0; | |
1117 | this_command_key_count = 0; | |
6321824f | 1118 | this_single_command_key_start = 0; |
284f4730 | 1119 | |
a612e298 RS |
1120 | /* Make sure this hook runs after commands that get errors and |
1121 | throw to top level. */ | |
a98ea3f9 RS |
1122 | /* Note that the value cell will never directly contain nil |
1123 | if the symbol is a local variable. */ | |
e98a93eb | 1124 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1125 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1126 | |
8a792f3a RS |
1127 | if (!NILP (Vdeferred_action_list)) |
1128 | call0 (Vdeferred_action_function); | |
1129 | ||
e98a93eb | 1130 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1131 | { |
1132 | if (NILP (Vunread_command_events) | |
1133 | && NILP (Vexecuting_macro) | |
41365083 | 1134 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1135 | safe_run_hooks (Qpost_command_idle_hook); |
1136 | } | |
1137 | ||
51d5a2c9 | 1138 | /* Do this after running Vpost_command_hook, for consistency. */ |
6c7178b9 | 1139 | current_kboard->Vlast_command = this_command; |
51d5a2c9 | 1140 | |
284f4730 JB |
1141 | while (1) |
1142 | { | |
284f4730 JB |
1143 | /* Make sure the current window's buffer is selected. */ |
1144 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1145 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1146 | ||
1147 | /* Display any malloc warning that just came out. Use while because | |
1148 | displaying one warning can cause another. */ | |
1149 | ||
1150 | while (pending_malloc_warning) | |
1151 | display_malloc_warning (); | |
1152 | ||
1153 | no_direct = 0; | |
1154 | ||
86e5706b RS |
1155 | Vdeactivate_mark = Qnil; |
1156 | ||
284f4730 | 1157 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1158 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1159 | |
93127526 RS |
1160 | if (minibuf_level && echo_area_glyphs |
1161 | && EQ (minibuf_window, echo_area_window)) | |
284f4730 | 1162 | { |
f1bed6d8 RS |
1163 | /* Bind inhibit-quit to t so that C-g gets read in |
1164 | rather than quitting back to the minibuffer. */ | |
1165 | int count = specpdl_ptr - specpdl; | |
1166 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1167 | |
db08707d | 1168 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1169 | /* Clear the echo area. */ |
301738ed | 1170 | message2 (0, 0, 0); |
cdb9d665 | 1171 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1172 | |
db08707d RS |
1173 | unbind_to (count, Qnil); |
1174 | ||
e6aa7813 | 1175 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1176 | if (!NILP (Vquit_flag)) |
1177 | { | |
1178 | Vquit_flag = Qnil; | |
24597608 | 1179 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1180 | } |
1181 | } | |
1182 | ||
1183 | #ifdef C_ALLOCA | |
ff4b06d3 | 1184 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1185 | /* Since we can free the most stuff here. */ |
1186 | #endif /* C_ALLOCA */ | |
1187 | ||
8f805655 | 1188 | #if 0 |
8f805655 JB |
1189 | /* Select the frame that the last event came from. Usually, |
1190 | switch-frame events will take care of this, but if some lisp | |
1191 | code swallows a switch-frame event, we'll fix things up here. | |
1192 | Is this a good idea? */ | |
8c18cbfb | 1193 | if (FRAMEP (internal_last_event_frame) |
3c370943 JB |
1194 | && XFRAME (internal_last_event_frame) != selected_frame) |
1195 | Fselect_frame (internal_last_event_frame, Qnil); | |
284f4730 | 1196 | #endif |
48e416d4 RS |
1197 | /* If it has changed current-menubar from previous value, |
1198 | really recompute the menubar from the value. */ | |
a646e520 RS |
1199 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1200 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1201 | call0 (Qrecompute_lucid_menubar); |
1202 | ||
71918b75 RS |
1203 | before_command_key_count = this_command_key_count; |
1204 | before_command_echo_length = echo_length (); | |
1205 | ||
d7437ef6 RS |
1206 | this_command = Qnil; |
1207 | ||
8f805655 | 1208 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1209 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1210 | Qnil, 0, 1, 1); |
8f805655 | 1211 | |
6fac1409 RS |
1212 | /* A filter may have run while we were reading the input. */ |
1213 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1214 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1215 | ||
8f805655 JB |
1216 | ++num_input_keys; |
1217 | ||
284f4730 JB |
1218 | /* Now we have read a key sequence of length I, |
1219 | or else I is 0 and we found end of file. */ | |
1220 | ||
1221 | if (i == 0) /* End of file -- happens only in */ | |
1222 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1223 | /* -1 means read_key_sequence got a menu that was rejected. |
1224 | Just loop around and read another command. */ | |
1225 | if (i == -1) | |
1226 | { | |
1227 | cancel_echoing (); | |
1228 | this_command_key_count = 0; | |
6321824f | 1229 | this_single_command_key_start = 0; |
ff4b06d3 | 1230 | goto finalize; |
dcc408a0 | 1231 | } |
284f4730 | 1232 | |
284f4730 JB |
1233 | last_command_char = keybuf[i - 1]; |
1234 | ||
75c0b143 RS |
1235 | /* If the previous command tried to force a specific window-start, |
1236 | forget about that, in case this command moves point far away | |
c422836d KH |
1237 | from that position. But also throw away beg_unchanged and |
1238 | end_unchanged information in that case, so that redisplay will | |
1239 | update the whole window properly. */ | |
1240 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1241 | { | |
1242 | XWINDOW (selected_window)->force_start = Qnil; | |
1243 | beg_unchanged = end_unchanged = 0; | |
1244 | } | |
75c0b143 | 1245 | |
284f4730 JB |
1246 | cmd = read_key_sequence_cmd; |
1247 | if (!NILP (Vexecuting_macro)) | |
1248 | { | |
1249 | if (!NILP (Vquit_flag)) | |
1250 | { | |
1251 | Vexecuting_macro = Qt; | |
1252 | QUIT; /* Make some noise. */ | |
1253 | /* Will return since macro now empty. */ | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1258 | cases identified below that set no_redisplay to 1. |
1259 | (actually, there's currently no way to prevent the redisplay, | |
1260 | and no_redisplay is ignored. | |
beecf6a1 | 1261 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1262 | no_redisplay = 0; |
1263 | ||
86e5706b RS |
1264 | prev_buffer = current_buffer; |
1265 | prev_modiff = MODIFF; | |
8746da95 | 1266 | last_point_position = PT; |
18cd2eeb | 1267 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1268 | |
284f4730 JB |
1269 | /* Execute the command. */ |
1270 | ||
86e5706b | 1271 | this_command = cmd; |
a98ea3f9 RS |
1272 | /* Note that the value cell will never directly contain nil |
1273 | if the symbol is a local variable. */ | |
e98a93eb | 1274 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1275 | safe_run_hooks (Qpre_command_hook); |
86e5706b | 1276 | |
258bf746 | 1277 | if (NILP (this_command)) |
284f4730 JB |
1278 | { |
1279 | /* nil means key is undefined. */ | |
1280 | bitch_at_user (); | |
c5fdd383 | 1281 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1282 | update_mode_lines = 1; |
d8bcf58e | 1283 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1284 | } |
1285 | else | |
1286 | { | |
d8bcf58e | 1287 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 JB |
1288 | { |
1289 | /* Recognize some common commands in common situations and | |
1290 | do them directly. */ | |
8001d352 | 1291 | if (EQ (this_command, Qforward_char) && PT < ZV) |
284f4730 | 1292 | { |
51ad8a68 | 1293 | struct Lisp_Char_Table *dp |
284f4730 | 1294 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 RS |
1295 | lose = FETCH_BYTE (PT_BYTE); |
1296 | SET_PT (PT + 1); | |
0f7a8fee | 1297 | if ((dp |
82ba47d7 | 1298 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1299 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1300 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1301 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1302 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1303 | /* To extract the case of continuation on |
1304 | wide-column characters. */ | |
8458ede6 | 1305 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1306 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1307 | >= MODIFF) | |
598ba4c7 RS |
1308 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1309 | >= OVERLAY_MODIFF) | |
284f4730 | 1310 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1311 | == PT - 1) |
284f4730 JB |
1312 | && !windows_or_buffers_changed |
1313 | && EQ (current_buffer->selective_display, Qnil) | |
1314 | && !detect_input_pending () | |
962ae636 | 1315 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1316 | && NILP (Vexecuting_macro)) |
1317 | no_redisplay = direct_output_forward_char (1); | |
1318 | goto directly_done; | |
1319 | } | |
8001d352 | 1320 | else if (EQ (this_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1321 | { |
51ad8a68 | 1322 | struct Lisp_Char_Table *dp |
284f4730 | 1323 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 RS |
1324 | SET_PT (PT - 1); |
1325 | lose = FETCH_BYTE (PT_BYTE); | |
0f7a8fee | 1326 | if ((dp |
ca873d73 | 1327 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1328 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1329 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1330 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1331 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1332 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1333 | >= MODIFF) | |
598ba4c7 RS |
1334 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1335 | >= OVERLAY_MODIFF) | |
284f4730 | 1336 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1337 | == PT + 1) |
284f4730 JB |
1338 | && !windows_or_buffers_changed |
1339 | && EQ (current_buffer->selective_display, Qnil) | |
1340 | && !detect_input_pending () | |
962ae636 | 1341 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1342 | && NILP (Vexecuting_macro)) |
1343 | no_redisplay = direct_output_forward_char (-1); | |
1344 | goto directly_done; | |
1345 | } | |
258bf746 | 1346 | else if (EQ (this_command, Qself_insert_command) |
284f4730 | 1347 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1348 | && INTEGERP (last_command_char)) |
284f4730 | 1349 | { |
89599794 | 1350 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1351 | int value; |
284f4730 | 1352 | |
fc9cce4e RS |
1353 | if (NILP (Vexecuting_macro) |
1354 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1355 | { |
1356 | if (!nonundocount || nonundocount >= 20) | |
1357 | { | |
1358 | Fundo_boundary (); | |
1359 | nonundocount = 0; | |
1360 | } | |
1361 | nonundocount++; | |
1362 | } | |
fc9cce4e RS |
1363 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1364 | < MODIFF) | |
598ba4c7 RS |
1365 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1366 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1367 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1368 | != PT) | |
4c61f38e | 1369 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1370 | || windows_or_buffers_changed |
1371 | || !EQ (current_buffer->selective_display, Qnil) | |
1372 | || detect_input_pending () | |
962ae636 | 1373 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e RS |
1374 | || !NILP (Vexecuting_macro)); |
1375 | value = internal_self_insert (c, 0); | |
1376 | if (value) | |
1377 | lose = 1; | |
1378 | if (value == 2) | |
1379 | nonundocount = 0; | |
1380 | ||
1381 | if (!lose | |
8458ede6 | 1382 | && (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
284f4730 | 1383 | { |
51ad8a68 | 1384 | struct Lisp_Char_Table *dp |
284f4730 | 1385 | = window_display_table (XWINDOW (selected_window)); |
b8d9050d | 1386 | int lose = c; |
284f4730 | 1387 | |
e3ee7487 RS |
1388 | /* Add the offset to the character, for Finsert_char. |
1389 | We pass internal_self_insert the unmodified character | |
1390 | because it itself does this offsetting. */ | |
2e9dc125 RS |
1391 | if (! NILP (current_buffer->enable_multibyte_characters)) |
1392 | lose = unibyte_char_to_multibyte (lose); | |
e3ee7487 | 1393 | |
0f7a8fee JB |
1394 | if (dp) |
1395 | { | |
9b8eb840 | 1396 | Lisp_Object obj; |
0f7a8fee | 1397 | |
9b8eb840 | 1398 | obj = DISP_CHAR_VECTOR (dp, lose); |
054c8675 | 1399 | if (NILP (obj)) |
8e91f441 RS |
1400 | { |
1401 | /* Do it only for char codes | |
1402 | that by default display as themselves. */ | |
1403 | if (lose >= 0x20 && lose <= 0x7e) | |
1404 | no_redisplay = direct_output_for_insert (lose); | |
1405 | } | |
8c18cbfb | 1406 | else if (VECTORP (obj) |
054c8675 | 1407 | && XVECTOR (obj)->size == 1 |
8c18cbfb KH |
1408 | && (obj = XVECTOR (obj)->contents[0], |
1409 | INTEGERP (obj)) | |
054c8675 RS |
1410 | /* Insist face not specified in glyph. */ |
1411 | && (XINT (obj) & ((-1) << 8)) == 0) | |
bd48a052 RS |
1412 | no_redisplay |
1413 | = direct_output_for_insert (XINT (obj)); | |
0f7a8fee JB |
1414 | } |
1415 | else | |
1416 | { | |
1417 | if (lose >= 0x20 && lose <= 0x7e) | |
1418 | no_redisplay = direct_output_for_insert (lose); | |
1419 | } | |
284f4730 JB |
1420 | } |
1421 | goto directly_done; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | /* Here for a command that isn't executed directly */ | |
1426 | ||
1427 | nonundocount = 0; | |
d8bcf58e | 1428 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1429 | Fundo_boundary (); |
158f7532 | 1430 | Fcommand_execute (this_command, Qnil, Qnil, Qnil); |
284f4730 | 1431 | |
284f4730 | 1432 | } |
a764a753 | 1433 | directly_done: ; |
284f4730 | 1434 | |
84ee6048 RS |
1435 | /* Note that the value cell will never directly contain nil |
1436 | if the symbol is a local variable. */ | |
1437 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1438 | safe_run_hooks (Qpost_command_hook); | |
1439 | ||
1440 | if (!NILP (Vdeferred_action_list)) | |
1441 | safe_run_hooks (Qdeferred_action_function); | |
1442 | ||
1443 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1444 | { | |
1445 | if (NILP (Vunread_command_events) | |
1446 | && NILP (Vexecuting_macro) | |
1447 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1448 | safe_run_hooks (Qpost_command_idle_hook); | |
1449 | } | |
1450 | ||
284f4730 | 1451 | /* If there is a prefix argument, |
6c7178b9 KH |
1452 | 1) We don't want Vlast_command to be ``universal-argument'' |
1453 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1454 | 2) we want to leave echoing on so that the prefix will be |
1455 | echoed as part of this key sequence, so don't call | |
1456 | cancel_echoing, and | |
1457 | 3) we want to leave this_command_key_count non-zero, so that | |
1458 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1459 | not echo it a second time. |
1460 | ||
1461 | If the command didn't actually create a prefix arg, | |
1462 | but is merely a frame event that is transparent to prefix args, | |
1463 | then the above doesn't apply. */ | |
1464 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1465 | { |
6c7178b9 | 1466 | current_kboard->Vlast_command = this_command; |
284f4730 JB |
1467 | cancel_echoing (); |
1468 | this_command_key_count = 0; | |
6321824f | 1469 | this_single_command_key_start = 0; |
284f4730 | 1470 | } |
86e5706b | 1471 | |
88ce066e | 1472 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1473 | { |
1474 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1475 | { | |
1476 | current_buffer->mark_active = Qnil; | |
1477 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1478 | } | |
1479 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1480 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1481 | } | |
ff4b06d3 KH |
1482 | |
1483 | finalize: | |
1484 | /* Install chars successfully executed in kbd macro. */ | |
1485 | ||
d8bcf58e KH |
1486 | if (!NILP (current_kboard->defining_kbd_macro) |
1487 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1488 | finalize_kbd_macro_chars (); |
1489 | ||
c5fdd383 | 1490 | #ifdef MULTI_KBOARD |
604ccd1d | 1491 | if (!was_locked) |
1e8bd3da | 1492 | any_kboard_state (); |
ff4b06d3 | 1493 | #endif |
284f4730 JB |
1494 | } |
1495 | } | |
1c9784c9 | 1496 | |
0bc3db2b RS |
1497 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1498 | ||
1499 | static Lisp_Object | |
1500 | safe_run_hooks_1 (hook) | |
1501 | Lisp_Object hook; | |
1502 | { | |
1503 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1504 | } | |
1505 | ||
1506 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1507 | ||
1508 | static Lisp_Object | |
1509 | safe_run_hooks_error (data) | |
1510 | Lisp_Object data; | |
1511 | { | |
1512 | Fset (Vinhibit_quit, Qnil); | |
1513 | } | |
1514 | ||
1c9784c9 KH |
1515 | /* If we get an error while running the hook, cause the hook variable |
1516 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1517 | to mysteriously evaporate. */ | |
0bc3db2b | 1518 | |
68f297c5 | 1519 | void |
1c9784c9 | 1520 | safe_run_hooks (hook) |
a98ea3f9 | 1521 | Lisp_Object hook; |
1c9784c9 | 1522 | { |
68553292 | 1523 | Lisp_Object value; |
1c9784c9 | 1524 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1525 | specbind (Qinhibit_quit, hook); |
1526 | ||
e702932d | 1527 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1528 | |
1529 | unbind_to (count, Qnil); | |
1530 | } | |
284f4730 JB |
1531 | \f |
1532 | /* Number of seconds between polling for input. */ | |
1533 | int polling_period; | |
1534 | ||
eb8c3be9 | 1535 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1536 | int poll_suppress_count; |
1537 | ||
36922b18 | 1538 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1539 | int polling_for_input; |
1540 | ||
36922b18 RS |
1541 | #ifdef POLL_FOR_INPUT |
1542 | ||
284f4730 JB |
1543 | /* Handle an alarm once each second and read pending input |
1544 | so as to handle a C-g if it comces in. */ | |
1545 | ||
1546 | SIGTYPE | |
91c049d4 RS |
1547 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1548 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1549 | { |
87dd9b9b RS |
1550 | /* This causes the call to start_polling at the end |
1551 | to do its job. It also arranges for a quit or error | |
1552 | from within read_avail_input to resume polling. */ | |
1553 | poll_suppress_count++; | |
9ac0d9e0 JB |
1554 | if (interrupt_input_blocked == 0 |
1555 | && !waiting_for_input) | |
1556 | read_avail_input (0); | |
87dd9b9b RS |
1557 | /* Turn on the SIGALRM handler and request another alarm. */ |
1558 | start_polling (); | |
284f4730 JB |
1559 | } |
1560 | ||
1561 | #endif | |
1562 | ||
1563 | /* Begin signals to poll for input, if they are appropriate. | |
1564 | This function is called unconditionally from various places. */ | |
1565 | ||
07a59269 | 1566 | void |
284f4730 JB |
1567 | start_polling () |
1568 | { | |
1569 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1570 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1571 | { |
1572 | poll_suppress_count--; | |
1573 | if (poll_suppress_count == 0) | |
1574 | { | |
1575 | signal (SIGALRM, input_poll_signal); | |
1576 | polling_for_input = 1; | |
1577 | alarm (polling_period); | |
1578 | } | |
1579 | } | |
1580 | #endif | |
1581 | } | |
1582 | ||
1d3195db RS |
1583 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1584 | ||
1585 | int | |
1586 | input_polling_used () | |
1587 | { | |
1588 | #ifdef POLL_FOR_INPUT | |
1589 | return read_socket_hook && !interrupt_input; | |
1590 | #else | |
1591 | return 0; | |
1592 | #endif | |
1593 | } | |
1594 | ||
284f4730 JB |
1595 | /* Turn off polling. */ |
1596 | ||
07a59269 | 1597 | void |
284f4730 JB |
1598 | stop_polling () |
1599 | { | |
1600 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1601 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1602 | { |
1603 | if (poll_suppress_count == 0) | |
1604 | { | |
1605 | polling_for_input = 0; | |
1606 | alarm (0); | |
1607 | } | |
1608 | poll_suppress_count++; | |
1609 | } | |
1610 | #endif | |
1611 | } | |
fe8aeef3 RS |
1612 | |
1613 | /* Set the value of poll_suppress_count to COUNT | |
1614 | and start or stop polling accordingly. */ | |
1615 | ||
1616 | void | |
1617 | set_poll_suppress_count (count) | |
1618 | int count; | |
1619 | { | |
1620 | #ifdef POLL_FOR_INPUT | |
1621 | if (count == 0 && poll_suppress_count != 0) | |
1622 | { | |
1623 | poll_suppress_count = 1; | |
1624 | start_polling (); | |
1625 | } | |
1626 | else if (count != 0 && poll_suppress_count == 0) | |
1627 | { | |
1628 | stop_polling (); | |
1629 | } | |
1630 | poll_suppress_count = count; | |
1631 | #endif | |
1632 | } | |
f4eef8b4 | 1633 | |
d0a57728 RS |
1634 | /* Bind polling_period to a value at least N. |
1635 | But don't decrease it. */ | |
1636 | ||
07a59269 | 1637 | void |
f4eef8b4 RS |
1638 | bind_polling_period (n) |
1639 | int n; | |
1640 | { | |
1641 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1642 | int new = polling_period; |
1643 | ||
1644 | if (n > new) | |
1645 | new = n; | |
1646 | ||
f4eef8b4 | 1647 | stop_polling (); |
d0a57728 RS |
1648 | specbind (Qpolling_period, make_number (new)); |
1649 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1650 | start_polling (); |
1651 | #endif | |
1652 | } | |
284f4730 | 1653 | \f |
6da3dd3a RS |
1654 | /* Apply the control modifier to CHARACTER. */ |
1655 | ||
faf5e407 JB |
1656 | int |
1657 | make_ctrl_char (c) | |
1658 | int c; | |
1659 | { | |
d205953b JB |
1660 | /* Save the upper bits here. */ |
1661 | int upper = c & ~0177; | |
1662 | ||
1663 | c &= 0177; | |
1664 | ||
1665 | /* Everything in the columns containing the upper-case letters | |
1666 | denotes a control character. */ | |
1667 | if (c >= 0100 && c < 0140) | |
1668 | { | |
1669 | int oc = c; | |
1670 | c &= ~0140; | |
1671 | /* Set the shift modifier for a control char | |
1672 | made from a shifted letter. But only for letters! */ | |
1673 | if (oc >= 'A' && oc <= 'Z') | |
1674 | c |= shift_modifier; | |
1675 | } | |
1676 | ||
1677 | /* The lower-case letters denote control characters too. */ | |
1678 | else if (c >= 'a' && c <= 'z') | |
1679 | c &= ~0140; | |
1680 | ||
1681 | /* Include the bits for control and shift | |
1682 | only if the basic ASCII code can't indicate them. */ | |
1683 | else if (c >= ' ') | |
1684 | c |= ctrl_modifier; | |
1685 | ||
1686 | /* Replace the high bits. */ | |
1687 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1688 | |
1689 | return c; | |
1690 | } | |
1691 | ||
1692 | ||
1693 | \f | |
284f4730 JB |
1694 | /* Input of single characters from keyboard */ |
1695 | ||
1696 | Lisp_Object print_help (); | |
1697 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1698 | static void record_char (); |
284f4730 | 1699 | |
c5fdd383 KH |
1700 | #ifdef MULTI_KBOARD |
1701 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1702 | #endif |
beecf6a1 | 1703 | |
284f4730 JB |
1704 | /* read a character from the keyboard; call the redisplay if needed */ |
1705 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1706 | -1 means do not do redisplay, but do do autosaving. | |
1707 | 1 means do both. */ | |
1708 | ||
7d6de002 RS |
1709 | /* The arguments MAPS and NMAPS are for menu prompting. |
1710 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1711 | ||
1712 | PREV_EVENT is the previous input event, or nil if we are reading | |
1713 | the first event of a key sequence. | |
1714 | ||
83d68044 | 1715 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1716 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1717 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1718 | |
1719 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1720 | |
284f4730 | 1721 | Lisp_Object |
7d6de002 | 1722 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1723 | int commandflag; |
7d6de002 RS |
1724 | int nmaps; |
1725 | Lisp_Object *maps; | |
1726 | Lisp_Object prev_event; | |
1727 | int *used_mouse_menu; | |
284f4730 | 1728 | { |
7c3bc944 | 1729 | Lisp_Object c; |
284f4730 | 1730 | int count; |
410d4de9 | 1731 | jmp_buf local_getcjmp; |
284f4730 | 1732 | jmp_buf save_jump; |
a1341f75 | 1733 | int key_already_recorded = 0; |
017c7cb6 | 1734 | Lisp_Object tem, save; |
e4fe371d | 1735 | Lisp_Object also_record; |
7c3bc944 RS |
1736 | struct gcpro gcpro1; |
1737 | ||
e4fe371d | 1738 | also_record = Qnil; |
284f4730 | 1739 | |
71918b75 RS |
1740 | before_command_key_count = this_command_key_count; |
1741 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1742 | c = Qnil; |
71918b75 | 1743 | |
7c3bc944 RS |
1744 | GCPRO1 (c); |
1745 | ||
7f07d5ca RS |
1746 | retry: |
1747 | ||
24597608 | 1748 | if (CONSP (Vunread_command_events)) |
284f4730 | 1749 | { |
24597608 RS |
1750 | c = XCONS (Vunread_command_events)->car; |
1751 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
284f4730 | 1752 | |
2479e91e RS |
1753 | /* Undo what read_char_x_menu_prompt did when it unread |
1754 | additional keys returned by Fx_popup_menu. */ | |
1755 | if (CONSP (c) | |
1756 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1757 | && NILP (XCONS (c)->cdr)) | |
1758 | c = XCONS (c)->car; | |
1759 | ||
284f4730 JB |
1760 | if (this_command_key_count == 0) |
1761 | goto reread_first; | |
1762 | else | |
1763 | goto reread; | |
1764 | } | |
1765 | ||
86e5706b RS |
1766 | if (unread_command_char != -1) |
1767 | { | |
18cd2eeb | 1768 | XSETINT (c, unread_command_char); |
86e5706b RS |
1769 | unread_command_char = -1; |
1770 | ||
1771 | if (this_command_key_count == 0) | |
1772 | goto reread_first; | |
1773 | else | |
1774 | goto reread; | |
1775 | } | |
1776 | ||
71918b75 RS |
1777 | /* If there is no function key translated before |
1778 | reset-this-command-lengths takes effect, forget about it. */ | |
1779 | before_command_restore_flag = 0; | |
1780 | ||
284f4730 JB |
1781 | if (!NILP (Vexecuting_macro)) |
1782 | { | |
fce33686 JB |
1783 | /* We set this to Qmacro; since that's not a frame, nobody will |
1784 | try to switch frames on us, and the selected window will | |
1785 | remain unchanged. | |
1786 | ||
1787 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1788 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1789 | real event came from. Normally, a switch-frame event selects |
1790 | internal_last_event_frame after each command is read, but | |
1791 | events read from a macro should never cause a new frame to be | |
1792 | selected. */ | |
4c52b668 | 1793 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 1794 | |
663258f2 JB |
1795 | /* Exit the macro if we are at the end. |
1796 | Also, some things replace the macro with t | |
1797 | to force an early exit. */ | |
1798 | if (EQ (Vexecuting_macro, Qt) | |
1799 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1800 | { |
18cd2eeb | 1801 | XSETINT (c, -1); |
7c3bc944 | 1802 | RETURN_UNGCPRO (c); |
284f4730 | 1803 | } |
df0f2ba1 | 1804 | |
284f4730 | 1805 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1806 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1807 | && (XINT (c) & 0x80)) |
bb9e9bed | 1808 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1809 | |
284f4730 JB |
1810 | executing_macro_index++; |
1811 | ||
1812 | goto from_macro; | |
1813 | } | |
1814 | ||
cd21b839 JB |
1815 | if (!NILP (unread_switch_frame)) |
1816 | { | |
1817 | c = unread_switch_frame; | |
1818 | unread_switch_frame = Qnil; | |
1819 | ||
1820 | /* This event should make it into this_command_keys, and get echoed | |
f4255cd1 JB |
1821 | again, so we go to reread_first, rather than reread. */ |
1822 | goto reread_first; | |
cd21b839 JB |
1823 | } |
1824 | ||
6e4e64a8 RS |
1825 | if (commandflag >= 0) |
1826 | { | |
1827 | if (input_pending | |
1828 | || detect_input_pending_run_timers (0)) | |
1829 | swallow_events (0); | |
1830 | ||
1831 | if (!input_pending) | |
1832 | redisplay (); | |
1833 | } | |
e9bf89a0 | 1834 | |
410d4de9 RS |
1835 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
1836 | if (echo_area_glyphs && *echo_area_glyphs | |
1fc93d49 | 1837 | && echo_area_glyphs != current_kboard->echobuf |
0c04a67e | 1838 | && ok_to_echo_at_next_pause != echo_area_glyphs) |
410d4de9 RS |
1839 | cancel_echoing (); |
1840 | else | |
1841 | /* If already echoing, continue. */ | |
1842 | echo_dash (); | |
284f4730 | 1843 | |
410d4de9 RS |
1844 | /* Try reading a character via menu prompting in the minibuf. |
1845 | Try this before the sit-for, because the sit-for | |
1846 | would do the wrong thing if we are supposed to do | |
1847 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1848 | after a mouse event so don't try a minibuf menu. */ | |
1849 | c = Qnil; | |
1850 | if (nmaps > 0 && INTERACTIVE | |
1851 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
1852 | /* Don't bring up a menu if we already have another event. */ | |
1853 | && NILP (Vunread_command_events) | |
1854 | && unread_command_char < 0 | |
4ec4ed6a | 1855 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
1856 | { |
1857 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
1858 | if (! NILP (c)) | |
1859 | { | |
1860 | key_already_recorded = 1; | |
1861 | goto non_reread_1; | |
1862 | } | |
1863 | } | |
284f4730 | 1864 | |
410d4de9 RS |
1865 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
1866 | We will do that below, temporarily for short sections of code, | |
1867 | when appropriate. local_getcjmp must be in effect | |
1868 | around any call to sit_for or kbd_buffer_get_event; | |
1869 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 1870 | |
410d4de9 | 1871 | if (_setjmp (local_getcjmp)) |
284f4730 | 1872 | { |
18cd2eeb | 1873 | XSETINT (c, quit_char); |
4c52b668 KH |
1874 | XSETFRAME (internal_last_event_frame, selected_frame); |
1875 | Vlast_event_frame = internal_last_event_frame; | |
04904c29 RS |
1876 | /* If we report the quit char as an event, |
1877 | don't do so more than once. */ | |
1878 | if (!NILP (Vinhibit_quit)) | |
1879 | Vquit_flag = Qnil; | |
284f4730 | 1880 | |
c5fdd383 | 1881 | #ifdef MULTI_KBOARD |
df0f2ba1 | 1882 | { |
c5fdd383 KH |
1883 | KBOARD *kb = FRAME_KBOARD (selected_frame); |
1884 | if (kb != current_kboard) | |
df0f2ba1 | 1885 | { |
c5fdd383 | 1886 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
1887 | /* We shouldn't get here if we were in single-kboard mode! */ |
1888 | if (single_kboard) | |
df0f2ba1 KH |
1889 | abort (); |
1890 | while (CONSP (*tailp)) | |
1891 | tailp = &XCONS (*tailp)->cdr; | |
1892 | if (!NILP (*tailp)) | |
1893 | abort (); | |
1894 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
1895 | kb->kbd_queue_has_data = 1; |
1896 | current_kboard = kb; | |
ef6661f7 RS |
1897 | /* This is going to exit from read_char |
1898 | so we had better get rid of this frame's stuff. */ | |
1899 | UNGCPRO; | |
c5fdd383 | 1900 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
1901 | } |
1902 | } | |
1903 | #endif | |
284f4730 JB |
1904 | goto non_reread; |
1905 | } | |
1906 | ||
d9d4c147 KH |
1907 | timer_start_idle (); |
1908 | ||
284f4730 JB |
1909 | /* If in middle of key sequence and minibuffer not active, |
1910 | start echoing if enough time elapses. */ | |
410d4de9 | 1911 | |
c5fdd383 | 1912 | if (minibuf_level == 0 && !current_kboard->immediate_echo |
6c6083a9 | 1913 | && this_command_key_count > 0 |
27203ead | 1914 | && ! noninteractive |
284f4730 | 1915 | && echo_keystrokes > 0 |
1fc93d49 | 1916 | && (echo_area_glyphs == 0 || *echo_area_glyphs == 0 |
0c04a67e | 1917 | || ok_to_echo_at_next_pause == echo_area_glyphs)) |
284f4730 JB |
1918 | { |
1919 | Lisp_Object tem0; | |
1920 | ||
7d6de002 RS |
1921 | /* After a mouse event, start echoing right away. |
1922 | This is because we are probably about to display a menu, | |
1923 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 1924 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 1925 | echo_now (); |
7d6de002 RS |
1926 | else |
1927 | { | |
410d4de9 RS |
1928 | save_getcjmp (save_jump); |
1929 | restore_getcjmp (local_getcjmp); | |
41365083 | 1930 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 1931 | restore_getcjmp (save_jump); |
303b5b3f RS |
1932 | if (EQ (tem0, Qt) |
1933 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 1934 | echo_now (); |
7d6de002 | 1935 | } |
284f4730 JB |
1936 | } |
1937 | ||
410d4de9 | 1938 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
1939 | |
1940 | if (commandflag != 0 | |
1941 | && auto_save_interval > 0 | |
c43b1734 | 1942 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 1943 | && !detect_input_pending_run_timers (0)) |
284f4730 | 1944 | { |
284f4730 | 1945 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
1946 | /* Hooks can actually change some buffers in auto save. */ |
1947 | redisplay (); | |
284f4730 JB |
1948 | } |
1949 | ||
8150596a | 1950 | /* Try reading using an X menu. |
24597608 RS |
1951 | This is never confused with reading using the minibuf |
1952 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
1953 | does not pass on any keymaps. */ | |
410d4de9 | 1954 | |
24597608 | 1955 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
1956 | && !NILP (prev_event) |
1957 | && EVENT_HAS_PARAMETERS (prev_event) | |
1958 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
24597608 RS |
1959 | /* Don't bring up a menu if we already have another event. */ |
1960 | && NILP (Vunread_command_events) | |
b8556aee | 1961 | && unread_command_char < 0) |
8eb4d8ef RS |
1962 | { |
1963 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
1964 | ||
1965 | /* Now that we have read an event, Emacs is not idle. */ | |
1966 | timer_stop_idle (); | |
1967 | ||
7c3bc944 | 1968 | RETURN_UNGCPRO (c); |
8eb4d8ef | 1969 | } |
7d6de002 | 1970 | |
410d4de9 RS |
1971 | /* Maybe autosave and/or garbage collect due to idleness. */ |
1972 | ||
26c1639e | 1973 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
1974 | { |
1975 | int delay_level, buffer_size; | |
1976 | ||
410d4de9 RS |
1977 | /* Slow down auto saves logarithmically in size of current buffer, |
1978 | and garbage collect while we're at it. */ | |
7d6de002 RS |
1979 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
1980 | last_non_minibuf_size = Z - BEG; | |
1981 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
1982 | delay_level = 0; | |
1983 | while (buffer_size > 64) | |
1984 | delay_level++, buffer_size -= buffer_size >> 2; | |
1985 | if (delay_level < 4) delay_level = 4; | |
1986 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
1987 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
1988 | ||
1989 | /* Auto save if enough time goes by without input. */ | |
1990 | if (commandflag != 0 | |
c43b1734 | 1991 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 1992 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
1993 | && XINT (Vauto_save_timeout) > 0) |
1994 | { | |
1995 | Lisp_Object tem0; | |
410d4de9 RS |
1996 | |
1997 | save_getcjmp (save_jump); | |
1998 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 1999 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2000 | 0, 1, 1, 0); |
410d4de9 RS |
2001 | restore_getcjmp (save_jump); |
2002 | ||
303b5b3f RS |
2003 | if (EQ (tem0, Qt) |
2004 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2005 | { |
7d6de002 | 2006 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2007 | |
2008 | /* If we have auto-saved and there is still no input | |
2009 | available, garbage collect if there has been enough | |
2010 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2011 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2012 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2013 | Fgarbage_collect (); |
410d4de9 | 2014 | |
ef8fd672 | 2015 | redisplay (); |
7d6de002 RS |
2016 | } |
2017 | } | |
2018 | } | |
284f4730 | 2019 | |
303b5b3f RS |
2020 | /* If this has become non-nil here, it has been set by a timer |
2021 | or sentinel or filter. */ | |
2022 | if (CONSP (Vunread_command_events)) | |
2023 | { | |
2024 | c = XCONS (Vunread_command_events)->car; | |
2025 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2026 | } | |
2027 | ||
410d4de9 RS |
2028 | /* Read something from current KBOARD's side queue, if possible. */ |
2029 | ||
beecf6a1 | 2030 | if (NILP (c)) |
1e12dd87 | 2031 | { |
c5fdd383 | 2032 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2033 | { |
c5fdd383 | 2034 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2035 | abort (); |
c5fdd383 KH |
2036 | c = XCONS (current_kboard->kbd_queue)->car; |
2037 | current_kboard->kbd_queue | |
2038 | = XCONS (current_kboard->kbd_queue)->cdr; | |
2039 | if (NILP (current_kboard->kbd_queue)) | |
2040 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2041 | input_pending = readable_events (0); |
4c52b668 KH |
2042 | if (EVENT_HAS_PARAMETERS (c) |
2043 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
2044 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
2045 | Vlast_event_frame = internal_last_event_frame; | |
beecf6a1 | 2046 | } |
1e8bd3da RS |
2047 | } |
2048 | ||
c5fdd383 | 2049 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2050 | /* If current_kboard's side queue is empty check the other kboards. |
2051 | If one of them has data that we have not yet seen here, | |
2052 | switch to it and process the data waiting for it. | |
2053 | ||
2054 | Note: if the events queued up for another kboard | |
2055 | have already been seen here, and therefore are not a complete command, | |
2056 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2057 | That's to avoid an infinite loop switching between kboards here. */ | |
2058 | if (NILP (c) && !single_kboard) | |
2059 | { | |
2060 | KBOARD *kb; | |
2061 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2062 | if (kb->kbd_queue_has_data) | |
2063 | { | |
2064 | current_kboard = kb; | |
ef6661f7 RS |
2065 | /* This is going to exit from read_char |
2066 | so we had better get rid of this frame's stuff. */ | |
2067 | UNGCPRO; | |
1e8bd3da RS |
2068 | longjmp (wrong_kboard_jmpbuf, 1); |
2069 | } | |
2070 | } | |
df0f2ba1 KH |
2071 | #endif |
2072 | ||
410d4de9 RS |
2073 | wrong_kboard: |
2074 | ||
2075 | stop_polling (); | |
2076 | ||
1e8bd3da RS |
2077 | /* Finally, we read from the main queue, |
2078 | and if that gives us something we can't use yet, we put it on the | |
2079 | appropriate side queue and try again. */ | |
410d4de9 | 2080 | |
1e8bd3da RS |
2081 | if (NILP (c)) |
2082 | { | |
2083 | KBOARD *kb; | |
2084 | ||
1e8bd3da | 2085 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2086 | save_getcjmp (save_jump); |
2087 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2088 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2089 | restore_getcjmp (save_jump); |
2090 | ||
c5fdd383 | 2091 | #ifdef MULTI_KBOARD |
410d4de9 | 2092 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2093 | { |
2094 | Lisp_Object *tailp = &kb->kbd_queue; | |
2095 | while (CONSP (*tailp)) | |
2096 | tailp = &XCONS (*tailp)->cdr; | |
2097 | if (!NILP (*tailp)) | |
2098 | abort (); | |
2099 | *tailp = Fcons (c, Qnil); | |
2100 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2101 | c = Qnil; |
1e8bd3da RS |
2102 | if (single_kboard) |
2103 | goto wrong_kboard; | |
2104 | current_kboard = kb; | |
ef6661f7 RS |
2105 | /* This is going to exit from read_char |
2106 | so we had better get rid of this frame's stuff. */ | |
2107 | UNGCPRO; | |
1e8bd3da | 2108 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2109 | } |
1e8bd3da | 2110 | #endif |
beecf6a1 | 2111 | } |
1e8bd3da | 2112 | |
284f4730 | 2113 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2114 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2115 | Fkill_emacs (make_number (1)); |
2116 | ||
8c18cbfb | 2117 | if (INTEGERP (c)) |
80645119 JB |
2118 | { |
2119 | /* Add in any extra modifiers, where appropriate. */ | |
2120 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2121 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2122 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2123 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2124 | |
2125 | /* Transfer any other modifier bits directly from | |
2126 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2127 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2128 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2129 | } |
9fa4395d | 2130 | |
284f4730 JB |
2131 | non_reread: |
2132 | ||
2fb9049e | 2133 | timer_stop_idle (); |
d9d4c147 | 2134 | |
284f4730 JB |
2135 | start_polling (); |
2136 | ||
410d4de9 RS |
2137 | if (NILP (c)) |
2138 | { | |
2139 | if (commandflag >= 0 | |
4ec4ed6a | 2140 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2141 | redisplay (); |
2142 | ||
2143 | goto wrong_kboard; | |
2144 | } | |
2145 | ||
2146 | non_reread_1: | |
2147 | ||
dfd11da7 | 2148 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2149 | so don't show them to the user. |
2150 | Also, don't record a key if we already did. */ | |
2151 | if (BUFFERP (c) || key_already_recorded) | |
2152 | RETURN_UNGCPRO (c); | |
a1341f75 | 2153 | |
7f07d5ca RS |
2154 | /* Process special events within read_char |
2155 | and loop around to read another event. */ | |
017c7cb6 RS |
2156 | save = Vquit_flag; |
2157 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2158 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2159 | c, 0, 0), 1); | |
017c7cb6 | 2160 | Vquit_flag = save; |
7f07d5ca RS |
2161 | |
2162 | if (!NILP (tem)) | |
2163 | { | |
ba8dfba8 RS |
2164 | int was_locked = single_kboard; |
2165 | ||
7f07d5ca | 2166 | last_input_char = c; |
158f7532 | 2167 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2168 | |
2169 | /* Resume allowing input from any kboard, if that was true before. */ | |
2170 | if (!was_locked) | |
2171 | any_kboard_state (); | |
2172 | ||
7f07d5ca RS |
2173 | goto retry; |
2174 | } | |
2175 | ||
dfd11da7 | 2176 | /* Wipe the echo area. */ |
cdb9d665 RS |
2177 | if (echo_area_glyphs) |
2178 | safe_run_hooks (Qecho_area_clear_hook); | |
dfd11da7 | 2179 | echo_area_glyphs = 0; |
284f4730 JB |
2180 | |
2181 | /* Handle things that only apply to characters. */ | |
8c18cbfb | 2182 | if (INTEGERP (c)) |
284f4730 JB |
2183 | { |
2184 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2185 | if (XINT (c) == -1) |
7c3bc944 | 2186 | RETURN_UNGCPRO (c); |
284f4730 | 2187 | |
301738ed RS |
2188 | if ((STRINGP (Vkeyboard_translate_table) |
2189 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2190 | || (VECTORP (Vkeyboard_translate_table) | |
2191 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2192 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2193 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2194 | { |
2195 | Lisp_Object d; | |
2196 | d = Faref (Vkeyboard_translate_table, c); | |
2197 | /* nil in keyboard-translate-table means no translation. */ | |
2198 | if (!NILP (d)) | |
2199 | c = d; | |
2200 | } | |
284f4730 JB |
2201 | } |
2202 | ||
e4fe371d RS |
2203 | /* If this event is a mouse click in the menu bar, |
2204 | return just menu-bar for now. Modify the mouse click event | |
2205 | so we won't do this twice, then queue it up. */ | |
2206 | if (EVENT_HAS_PARAMETERS (c) | |
2207 | && CONSP (XCONS (c)->cdr) | |
2208 | && CONSP (EVENT_START (c)) | |
2209 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2210 | { |
e4fe371d | 2211 | Lisp_Object posn; |
284f4730 | 2212 | |
e4fe371d RS |
2213 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2214 | /* Handle menu-bar events: | |
2215 | insert the dummy prefix event `menu-bar'. */ | |
2216 | if (EQ (posn, Qmenu_bar)) | |
2217 | { | |
2218 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2219 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2220 | |
e4fe371d RS |
2221 | also_record = c; |
2222 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2223 | c = posn; | |
284f4730 | 2224 | } |
284f4730 JB |
2225 | } |
2226 | ||
e4fe371d RS |
2227 | record_char (c); |
2228 | if (! NILP (also_record)) | |
2229 | record_char (also_record); | |
51172b6d | 2230 | |
284f4730 JB |
2231 | from_macro: |
2232 | reread_first: | |
7c3bc944 | 2233 | |
71918b75 RS |
2234 | before_command_key_count = this_command_key_count; |
2235 | before_command_echo_length = echo_length (); | |
284f4730 | 2236 | |
b8556aee | 2237 | /* Don't echo mouse motion events. */ |
8ea231fc RS |
2238 | if (echo_keystrokes |
2239 | && ! (EVENT_HAS_PARAMETERS (c) | |
2240 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
e4fe371d RS |
2241 | { |
2242 | echo_char (c); | |
2243 | if (! NILP (also_record)) | |
2244 | echo_char (also_record); | |
1fc93d49 RS |
2245 | /* Once we reread a character, echoing can happen |
2246 | the next time we pause to read a new one. */ | |
0c04a67e | 2247 | ok_to_echo_at_next_pause = echo_area_glyphs; |
e4fe371d | 2248 | } |
b8556aee | 2249 | |
db8c1663 | 2250 | /* Record this character as part of the current key. */ |
b8556aee | 2251 | add_command_key (c); |
e4fe371d RS |
2252 | if (! NILP (also_record)) |
2253 | add_command_key (also_record); | |
284f4730 JB |
2254 | |
2255 | /* Re-reading in the middle of a command */ | |
2256 | reread: | |
2257 | last_input_char = c; | |
c43b1734 | 2258 | num_input_events++; |
284f4730 JB |
2259 | |
2260 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2261 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2262 | { |
2263 | Lisp_Object tem0; | |
2264 | count = specpdl_ptr - specpdl; | |
2265 | ||
2266 | record_unwind_protect (Fset_window_configuration, | |
2267 | Fcurrent_window_configuration (Qnil)); | |
2268 | ||
2269 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2270 | if (STRINGP (tem0)) |
284f4730 JB |
2271 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2272 | ||
2273 | cancel_echoing (); | |
3cb81011 KH |
2274 | do |
2275 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2276 | while (BUFFERP (c)); |
ff11dfa1 | 2277 | /* Remove the help from the frame */ |
284f4730 | 2278 | unbind_to (count, Qnil); |
410d4de9 | 2279 | |
284f4730 JB |
2280 | redisplay (); |
2281 | if (EQ (c, make_number (040))) | |
2282 | { | |
2283 | cancel_echoing (); | |
3cb81011 KH |
2284 | do |
2285 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2286 | while (BUFFERP (c)); |
284f4730 JB |
2287 | } |
2288 | } | |
2289 | ||
7c3bc944 | 2290 | RETURN_UNGCPRO (c); |
284f4730 JB |
2291 | } |
2292 | ||
8eb4d8ef RS |
2293 | /* Record a key that came from a mouse menu. |
2294 | Record it for echoing, for this-command-keys, and so on. */ | |
2295 | ||
2296 | static void | |
2297 | record_menu_key (c) | |
2298 | Lisp_Object c; | |
2299 | { | |
2300 | /* Wipe the echo area. */ | |
2301 | echo_area_glyphs = 0; | |
2302 | ||
2303 | record_char (c); | |
2304 | ||
2305 | before_command_key_count = this_command_key_count; | |
2306 | before_command_echo_length = echo_length (); | |
2307 | ||
2308 | /* Don't echo mouse motion events. */ | |
2309 | if (echo_keystrokes) | |
2310 | { | |
2311 | echo_char (c); | |
2312 | ||
2313 | /* Once we reread a character, echoing can happen | |
2314 | the next time we pause to read a new one. */ | |
2315 | ok_to_echo_at_next_pause = 0; | |
2316 | } | |
2317 | ||
2318 | /* Record this character as part of the current key. */ | |
2319 | add_command_key (c); | |
2320 | ||
2321 | /* Re-reading in the middle of a command */ | |
2322 | last_input_char = c; | |
c43b1734 | 2323 | num_input_events++; |
8eb4d8ef RS |
2324 | } |
2325 | ||
ecb7cb34 KH |
2326 | /* Return 1 if should recognize C as "the help character". */ |
2327 | ||
2328 | int | |
2329 | help_char_p (c) | |
2330 | Lisp_Object c; | |
2331 | { | |
2332 | Lisp_Object tail; | |
2333 | ||
2334 | if (EQ (c, Vhelp_char)) | |
2335 | return 1; | |
2336 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2337 | if (EQ (c, XCONS (tail)->car)) | |
2338 | return 1; | |
2339 | return 0; | |
2340 | } | |
2341 | ||
e4fe371d RS |
2342 | /* Record the input event C in various ways. */ |
2343 | ||
2344 | static void | |
2345 | record_char (c) | |
2346 | Lisp_Object c; | |
2347 | { | |
2348 | total_keys++; | |
2349 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2350 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2351 | recent_keys_index = 0; | |
2352 | ||
2353 | /* Write c to the dribble file. If c is a lispy event, write | |
2354 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2355 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2356 | if (dribble) | |
2357 | { | |
2358 | if (INTEGERP (c)) | |
2359 | { | |
2360 | if (XUINT (c) < 0x100) | |
2361 | putc (XINT (c), dribble); | |
2362 | else | |
6de34814 | 2363 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2364 | } |
2365 | else | |
2366 | { | |
2367 | Lisp_Object dribblee; | |
2368 | ||
2369 | /* If it's a structured event, take the event header. */ | |
2370 | dribblee = EVENT_HEAD (c); | |
2371 | ||
2372 | if (SYMBOLP (dribblee)) | |
2373 | { | |
2374 | putc ('<', dribble); | |
2375 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
301738ed | 2376 | XSYMBOL (dribblee)->name->size_byte, |
e4fe371d RS |
2377 | dribble); |
2378 | putc ('>', dribble); | |
2379 | } | |
2380 | } | |
2381 | ||
2382 | fflush (dribble); | |
2383 | } | |
2384 | ||
2385 | store_kbd_macro_char (c); | |
2386 | ||
c43b1734 | 2387 | num_nonmacro_input_events++; |
e4fe371d RS |
2388 | } |
2389 | ||
284f4730 JB |
2390 | Lisp_Object |
2391 | print_help (object) | |
2392 | Lisp_Object object; | |
2393 | { | |
622de3e9 | 2394 | struct buffer *old = current_buffer; |
284f4730 | 2395 | Fprinc (object, Qnil); |
622de3e9 KH |
2396 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2397 | call0 (intern ("help-mode")); | |
2398 | set_buffer_internal (old); | |
284f4730 JB |
2399 | return Qnil; |
2400 | } | |
2401 | ||
2402 | /* Copy out or in the info on where C-g should throw to. | |
2403 | This is used when running Lisp code from within get_char, | |
2404 | in case get_char is called recursively. | |
2405 | See read_process_output. */ | |
2406 | ||
2407 | save_getcjmp (temp) | |
2408 | jmp_buf temp; | |
2409 | { | |
2410 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2411 | } | |
2412 | ||
2413 | restore_getcjmp (temp) | |
2414 | jmp_buf temp; | |
2415 | { | |
2416 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2417 | } | |
284f4730 | 2418 | \f |
2eb6bfbe RM |
2419 | #ifdef HAVE_MOUSE |
2420 | ||
284f4730 JB |
2421 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2422 | of this function. */ | |
a9d77f1f | 2423 | |
284f4730 JB |
2424 | static Lisp_Object |
2425 | tracking_off (old_value) | |
2426 | Lisp_Object old_value; | |
2427 | { | |
71edead1 RS |
2428 | do_mouse_tracking = old_value; |
2429 | if (NILP (old_value)) | |
284f4730 | 2430 | { |
284f4730 JB |
2431 | /* Redisplay may have been preempted because there was input |
2432 | available, and it assumes it will be called again after the | |
2433 | input has been processed. If the only input available was | |
2434 | the sort that we have just disabled, then we need to call | |
2435 | redisplay. */ | |
d9d4c147 | 2436 | if (!readable_events (1)) |
284f4730 JB |
2437 | { |
2438 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2439 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2440 | } |
2441 | } | |
2442 | } | |
2443 | ||
2444 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2445 | "Evaluate BODY with mouse movement events enabled.\n\ |
2446 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2447 | you can read with `read-event'.\n\ | |
2448 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2449 | (args) |
2450 | Lisp_Object args; | |
2451 | { | |
2452 | int count = specpdl_ptr - specpdl; | |
2453 | Lisp_Object val; | |
2454 | ||
a9d77f1f | 2455 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2456 | |
f3253854 | 2457 | do_mouse_tracking = Qt; |
df0f2ba1 | 2458 | |
284f4730 JB |
2459 | val = Fprogn (args); |
2460 | return unbind_to (count, val); | |
2461 | } | |
2eb6bfbe | 2462 | |
f3253854 KH |
2463 | /* If mouse has moved on some frame, return one of those frames. |
2464 | Return 0 otherwise. */ | |
2465 | ||
2466 | static FRAME_PTR | |
2467 | some_mouse_moved () | |
2468 | { | |
2469 | Lisp_Object tail, frame; | |
2470 | ||
2471 | FOR_EACH_FRAME (tail, frame) | |
2472 | { | |
2473 | if (XFRAME (frame)->mouse_moved) | |
2474 | return XFRAME (frame); | |
2475 | } | |
2476 | ||
2477 | return 0; | |
2478 | } | |
2479 | ||
2eb6bfbe | 2480 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2481 | \f |
2482 | /* Low level keyboard/mouse input. | |
2483 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2484 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2485 | |
2486 | /* Return true iff there are any events in the queue that read-char | |
2487 | would return. If this returns false, a read-char would block. */ | |
2488 | static int | |
d9d4c147 KH |
2489 | readable_events (do_timers_now) |
2490 | int do_timers_now; | |
a612e298 | 2491 | { |
4ec4ed6a RS |
2492 | if (do_timers_now) |
2493 | timer_check (do_timers_now); | |
2494 | ||
beecf6a1 KH |
2495 | if (kbd_fetch_ptr != kbd_store_ptr) |
2496 | return 1; | |
2497 | #ifdef HAVE_MOUSE | |
f3253854 | 2498 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2499 | return 1; |
2500 | #endif | |
1e8bd3da | 2501 | if (single_kboard) |
4c52b668 | 2502 | { |
c5fdd383 | 2503 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2504 | return 1; |
2505 | } | |
2506 | else | |
2507 | { | |
c5fdd383 KH |
2508 | KBOARD *kb; |
2509 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2510 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2511 | return 1; |
2512 | } | |
beecf6a1 | 2513 | return 0; |
a612e298 RS |
2514 | } |
2515 | ||
2516 | /* Set this for debugging, to have a way to get out */ | |
2517 | int stop_character; | |
284f4730 | 2518 | |
c5fdd383 KH |
2519 | #ifdef MULTI_KBOARD |
2520 | static KBOARD * | |
2521 | event_to_kboard (event) | |
5798cf15 KH |
2522 | struct input_event *event; |
2523 | { | |
2524 | Lisp_Object frame; | |
2525 | frame = event->frame_or_window; | |
2526 | if (CONSP (frame)) | |
2527 | frame = XCONS (frame)->car; | |
2528 | else if (WINDOWP (frame)) | |
2529 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2530 | ||
2531 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2532 | For now, just ignore the problem. |
2533 | Also ignore dead frames here. */ | |
2534 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2535 | return 0; |
2536 | else | |
c5fdd383 | 2537 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2538 | } |
2539 | #endif | |
2540 | ||
284f4730 JB |
2541 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2542 | ||
2543 | void | |
2544 | kbd_buffer_store_event (event) | |
2545 | register struct input_event *event; | |
2546 | { | |
2547 | if (event->kind == no_event) | |
2548 | abort (); | |
2549 | ||
2550 | if (event->kind == ascii_keystroke) | |
2551 | { | |
e9bf89a0 | 2552 | register int c = event->code & 0377; |
284f4730 | 2553 | |
faf5e407 JB |
2554 | if (event->modifiers & ctrl_modifier) |
2555 | c = make_ctrl_char (c); | |
2556 | ||
9fd7d808 RS |
2557 | c |= (event->modifiers |
2558 | & (meta_modifier | alt_modifier | |
2559 | | hyper_modifier | super_modifier)); | |
2560 | ||
86e5706b | 2561 | if (c == quit_char) |
284f4730 | 2562 | { |
3e51c7b7 | 2563 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2564 | #ifdef MULTI_KBOARD |
2565 | KBOARD *kb; | |
5798cf15 KH |
2566 | struct input_event *sp; |
2567 | ||
1e8bd3da | 2568 | if (single_kboard |
c5fdd383 KH |
2569 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2570 | kb != current_kboard)) | |
5798cf15 | 2571 | { |
c5fdd383 | 2572 | kb->kbd_queue |
5798cf15 KH |
2573 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2574 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2575 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2576 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2577 | { | |
2578 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2579 | sp = kbd_buffer; | |
2580 | ||
c5fdd383 | 2581 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2582 | { |
2583 | sp->kind = no_event; | |
2584 | sp->frame_or_window = Qnil; | |
2585 | } | |
2586 | } | |
2587 | return; | |
2588 | } | |
2589 | #endif | |
3e51c7b7 | 2590 | |
284f4730 | 2591 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2592 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2593 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2594 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2595 | { |
9b8eb840 | 2596 | Lisp_Object focus; |
4bb994d1 | 2597 | |
9b8eb840 | 2598 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2599 | if (NILP (focus)) |
beecf6a1 | 2600 | focus = event->frame_or_window; |
4c52b668 KH |
2601 | internal_last_event_frame = focus; |
2602 | Vlast_event_frame = focus; | |
4bb994d1 | 2603 | } |
3e51c7b7 | 2604 | |
ffd56f97 | 2605 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2606 | interrupt_signal (); |
2607 | return; | |
2608 | } | |
2609 | ||
2610 | if (c && c == stop_character) | |
2611 | { | |
2612 | sys_suspend (); | |
2613 | return; | |
2614 | } | |
284f4730 | 2615 | } |
3fe8e9a2 RS |
2616 | /* Don't insert two buffer_switch_event's in a row. |
2617 | Just ignore the second one. */ | |
2618 | else if (event->kind == buffer_switch_event | |
2619 | && kbd_fetch_ptr != kbd_store_ptr | |
2620 | && kbd_store_ptr->kind == buffer_switch_event) | |
2621 | return; | |
284f4730 | 2622 | |
beecf6a1 KH |
2623 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2624 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2625 | |
2626 | /* Don't let the very last slot in the buffer become full, | |
2627 | since that would make the two pointers equal, | |
2628 | and that is indistinguishable from an empty buffer. | |
2629 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2630 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2631 | { |
beecf6a1 | 2632 | volatile struct input_event *sp = kbd_store_ptr; |
612b78ef | 2633 | sp->kind = event->kind; |
27203ead RS |
2634 | if (event->kind == selection_request_event) |
2635 | { | |
2636 | /* We must not use the ordinary copying code for this case, | |
2637 | since `part' is an enum and copying it might not copy enough | |
2638 | in this case. */ | |
612b78ef | 2639 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2640 | } |
2641 | else | |
2642 | { | |
612b78ef KH |
2643 | sp->code = event->code; |
2644 | sp->part = event->part; | |
2645 | sp->frame_or_window = event->frame_or_window; | |
2646 | sp->modifiers = event->modifiers; | |
2647 | sp->x = event->x; | |
2648 | sp->y = event->y; | |
2649 | sp->timestamp = event->timestamp; | |
27203ead | 2650 | } |
beecf6a1 KH |
2651 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2652 | - kbd_buffer] | |
7b4aedb9 | 2653 | = event->frame_or_window); |
284f4730 | 2654 | |
beecf6a1 | 2655 | kbd_store_ptr++; |
284f4730 JB |
2656 | } |
2657 | } | |
a612e298 | 2658 | \f |
07de30b9 GV |
2659 | /* Discard any mouse events in the event buffer by setting them to |
2660 | no_event. */ | |
2661 | void | |
2662 | discard_mouse_events () | |
2663 | { | |
2664 | struct input_event *sp; | |
2665 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
2666 | { | |
2667 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2668 | sp = kbd_buffer; | |
2669 | ||
2670 | if (sp->kind == mouse_click | |
2671 | #ifdef WINDOWSNT | |
2672 | || sp->kind == w32_scroll_bar_click | |
2673 | #endif | |
2674 | || sp->kind == scroll_bar_click) | |
2675 | { | |
2676 | sp->kind = no_event; | |
2677 | } | |
2678 | } | |
2679 | } | |
2680 | \f | |
a612e298 RS |
2681 | /* Read one event from the event buffer, waiting if necessary. |
2682 | The value is a Lisp object representing the event. | |
2683 | The value is nil for an event that should be ignored, | |
2684 | or that was handled here. | |
2685 | We always read and discard one event. */ | |
284f4730 JB |
2686 | |
2687 | static Lisp_Object | |
83d68044 | 2688 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2689 | KBOARD **kbp; |
83d68044 | 2690 | int *used_mouse_menu; |
284f4730 JB |
2691 | { |
2692 | register int c; | |
2693 | Lisp_Object obj; | |
c04cbc3b | 2694 | EMACS_TIME next_timer_delay; |
284f4730 JB |
2695 | |
2696 | if (noninteractive) | |
2697 | { | |
2698 | c = getchar (); | |
18cd2eeb | 2699 | XSETINT (obj, c); |
f5b56972 | 2700 | *kbp = current_kboard; |
284f4730 JB |
2701 | return obj; |
2702 | } | |
2703 | ||
2704 | /* Wait until there is input available. */ | |
2705 | for (;;) | |
2706 | { | |
beecf6a1 KH |
2707 | if (kbd_fetch_ptr != kbd_store_ptr) |
2708 | break; | |
2709 | #ifdef HAVE_MOUSE | |
f3253854 | 2710 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2711 | break; |
beecf6a1 | 2712 | #endif |
284f4730 JB |
2713 | |
2714 | /* If the quit flag is set, then read_char will return | |
2715 | quit_char, so that counts as "available input." */ | |
2716 | if (!NILP (Vquit_flag)) | |
2717 | quit_throw_to_read_char (); | |
2718 | ||
2719 | /* One way or another, wait until input is available; then, if | |
2720 | interrupt handlers have not read it, read it now. */ | |
2721 | ||
2722 | #ifdef OLDVMS | |
2723 | wait_for_kbd_input (); | |
2724 | #else | |
2725 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
2726 | #ifdef SIGIO | |
2727 | gobble_input (0); | |
2728 | #endif /* SIGIO */ | |
beecf6a1 KH |
2729 | if (kbd_fetch_ptr != kbd_store_ptr) |
2730 | break; | |
2731 | #ifdef HAVE_MOUSE | |
f3253854 | 2732 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2733 | break; |
2734 | #endif | |
2735 | { | |
2736 | Lisp_Object minus_one; | |
f76475ad | 2737 | |
beecf6a1 | 2738 | XSETINT (minus_one, -1); |
d9d4c147 | 2739 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 2740 | |
beecf6a1 KH |
2741 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
2742 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
2743 | read_avail_input (1); | |
2744 | } | |
284f4730 JB |
2745 | #endif /* not VMS */ |
2746 | } | |
2747 | ||
303b5b3f RS |
2748 | if (CONSP (Vunread_command_events)) |
2749 | { | |
2750 | Lisp_Object first; | |
2751 | first = XCONS (Vunread_command_events)->car; | |
2752 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2753 | *kbp = current_kboard; | |
2754 | return first; | |
2755 | } | |
2756 | ||
284f4730 JB |
2757 | /* At this point, we know that there is a readable event available |
2758 | somewhere. If the event queue is empty, then there must be a | |
2759 | mouse movement enabled and available. */ | |
beecf6a1 | 2760 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 2761 | { |
cd21b839 | 2762 | struct input_event *event; |
3e51c7b7 | 2763 | |
beecf6a1 KH |
2764 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2765 | ? kbd_fetch_ptr | |
2766 | : kbd_buffer); | |
3e51c7b7 | 2767 | |
cd21b839 | 2768 | last_event_timestamp = event->timestamp; |
cd21b839 | 2769 | |
c5fdd383 KH |
2770 | #ifdef MULTI_KBOARD |
2771 | *kbp = event_to_kboard (event); | |
2772 | if (*kbp == 0) | |
2773 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 2774 | #else |
c5fdd383 | 2775 | *kbp = &the_only_kboard; |
5798cf15 | 2776 | #endif |
beecf6a1 | 2777 | |
4bb994d1 JB |
2778 | obj = Qnil; |
2779 | ||
48e416d4 | 2780 | /* These two kinds of events get special handling |
a612e298 RS |
2781 | and don't actually appear to the command loop. |
2782 | We return nil for them. */ | |
48e416d4 RS |
2783 | if (event->kind == selection_request_event) |
2784 | { | |
598a9fa7 | 2785 | #ifdef HAVE_X11 |
1e8bd3da RS |
2786 | struct input_event copy; |
2787 | ||
4581e928 RS |
2788 | /* Remove it from the buffer before processing it, |
2789 | since otherwise swallow_events will see it | |
2790 | and process it again. */ | |
1e8bd3da | 2791 | copy = *event; |
beecf6a1 | 2792 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 2793 | input_pending = readable_events (0); |
4581e928 | 2794 | x_handle_selection_request (©); |
598a9fa7 JB |
2795 | #else |
2796 | /* We're getting selection request events, but we don't have | |
2797 | a window system. */ | |
2798 | abort (); | |
2799 | #endif | |
48e416d4 RS |
2800 | } |
2801 | ||
1e12dd87 | 2802 | else if (event->kind == selection_clear_event) |
48e416d4 | 2803 | { |
598a9fa7 | 2804 | #ifdef HAVE_X11 |
e0301c07 RS |
2805 | struct input_event copy; |
2806 | ||
2807 | /* Remove it from the buffer before processing it. */ | |
2808 | copy = *event; | |
beecf6a1 | 2809 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 2810 | input_pending = readable_events (0); |
90c2bb0c | 2811 | x_handle_selection_clear (©); |
598a9fa7 JB |
2812 | #else |
2813 | /* We're getting selection request events, but we don't have | |
2814 | a window system. */ | |
2815 | abort (); | |
2816 | #endif | |
48e416d4 | 2817 | } |
e98a93eb | 2818 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
2819 | else if (event->kind == delete_window_event) |
2820 | { | |
bbdc2092 RS |
2821 | /* Make an event (delete-frame (FRAME)). */ |
2822 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 2823 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 2824 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2825 | } |
2826 | else if (event->kind == iconify_event) | |
2827 | { | |
2828 | /* Make an event (iconify-frame (FRAME)). */ | |
2829 | obj = Fcons (event->frame_or_window, Qnil); | |
2830 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 2831 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2832 | } |
2833 | else if (event->kind == deiconify_event) | |
2834 | { | |
2835 | /* Make an event (make-frame-visible (FRAME)). */ | |
2836 | obj = Fcons (event->frame_or_window, Qnil); | |
2837 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 2838 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
2839 | } |
2840 | #endif | |
a8015ab5 KH |
2841 | else if (event->kind == buffer_switch_event) |
2842 | { | |
2843 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 2844 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 2845 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 2846 | } |
07de30b9 | 2847 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
2848 | else if (event->kind == menu_bar_activate_event) |
2849 | { | |
2850 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 2851 | input_pending = readable_events (0); |
e649d076 RS |
2852 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
2853 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 RS |
2854 | } |
2855 | #endif | |
a612e298 | 2856 | /* Just discard these, by returning nil. |
c5fdd383 | 2857 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
2858 | when we need to randomly delete events from the queue. |
2859 | (They shouldn't otherwise be found in the buffer, | |
2860 | but on some machines it appears they do show up | |
c5fdd383 | 2861 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
2862 | /* On Windows NT/9X, no_event is used to delete extraneous |
2863 | mouse events during a popup-menu call. */ | |
a612e298 | 2864 | else if (event->kind == no_event) |
beecf6a1 | 2865 | kbd_fetch_ptr = event + 1; |
48e416d4 | 2866 | |
4bb994d1 JB |
2867 | /* If this event is on a different frame, return a switch-frame this |
2868 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
2869 | else |
2870 | { | |
9b8eb840 | 2871 | Lisp_Object frame; |
1e12dd87 | 2872 | Lisp_Object focus; |
7b4aedb9 | 2873 | |
9b8eb840 | 2874 | frame = event->frame_or_window; |
2470a66f KH |
2875 | if (CONSP (frame)) |
2876 | frame = XCONS (frame)->car; | |
2877 | else if (WINDOWP (frame)) | |
1e12dd87 | 2878 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 2879 | |
1e12dd87 RS |
2880 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
2881 | if (! NILP (focus)) | |
2882 | frame = focus; | |
07d2b8de | 2883 | |
4c52b668 | 2884 | if (! EQ (frame, internal_last_event_frame) |
1e12dd87 RS |
2885 | && XFRAME (frame) != selected_frame) |
2886 | obj = make_lispy_switch_frame (frame); | |
4c52b668 | 2887 | internal_last_event_frame = frame; |
4bb994d1 | 2888 | |
1e12dd87 RS |
2889 | /* If we didn't decide to make a switch-frame event, go ahead |
2890 | and build a real event from the queue entry. */ | |
cd21b839 | 2891 | |
1e12dd87 RS |
2892 | if (NILP (obj)) |
2893 | { | |
2894 | obj = make_lispy_event (event); | |
e98a93eb | 2895 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
2896 | /* If this was a menu selection, then set the flag to inhibit |
2897 | writing to last_nonmenu_event. Don't do this if the event | |
2898 | we're returning is (menu-bar), though; that indicates the | |
2899 | beginning of the menu sequence, and we might as well leave | |
2900 | that as the `event with parameters' for this selection. */ | |
2901 | if (event->kind == menu_bar_event | |
2902 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) | |
2903 | && used_mouse_menu) | |
2904 | *used_mouse_menu = 1; | |
2905 | #endif | |
1e12dd87 RS |
2906 | |
2907 | /* Wipe out this event, to catch bugs. */ | |
2908 | event->kind = no_event; | |
beecf6a1 | 2909 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 2910 | |
beecf6a1 | 2911 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 2912 | } |
4bb994d1 | 2913 | } |
284f4730 | 2914 | } |
2eb6bfbe | 2915 | #ifdef HAVE_MOUSE |
a612e298 | 2916 | /* Try generating a mouse motion event. */ |
f3253854 | 2917 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2918 | { |
f3253854 | 2919 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 2920 | Lisp_Object bar_window; |
3c370943 | 2921 | enum scroll_bar_part part; |
e5d77022 JB |
2922 | Lisp_Object x, y; |
2923 | unsigned long time; | |
284f4730 | 2924 | |
c5fdd383 | 2925 | *kbp = current_kboard; |
e177ac3a RS |
2926 | /* Note that this uses F to determine which display to look at. |
2927 | If there is no valid info, it does not store anything | |
2928 | so x remains nil. */ | |
2929 | x = Qnil; | |
dd26ab75 | 2930 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
2931 | |
2932 | obj = Qnil; | |
284f4730 | 2933 | |
4bb994d1 JB |
2934 | /* Decide if we should generate a switch-frame event. Don't |
2935 | generate switch-frame events for motion outside of all Emacs | |
2936 | frames. */ | |
e177ac3a | 2937 | if (!NILP (x) && f) |
cd21b839 | 2938 | { |
9b8eb840 | 2939 | Lisp_Object frame; |
4bb994d1 | 2940 | |
9b8eb840 | 2941 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 2942 | if (NILP (frame)) |
18cd2eeb | 2943 | XSETFRAME (frame, f); |
4bb994d1 | 2944 | |
4c52b668 | 2945 | if (! EQ (frame, internal_last_event_frame) |
80645119 | 2946 | && XFRAME (frame) != selected_frame) |
764cb3f9 | 2947 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 2948 | internal_last_event_frame = frame; |
cd21b839 | 2949 | } |
4bb994d1 | 2950 | |
df0f2ba1 | 2951 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 2952 | return a mouse-motion event. */ |
e177ac3a | 2953 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 2954 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 2955 | } |
2eb6bfbe | 2956 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
2957 | else |
2958 | /* We were promised by the above while loop that there was | |
2959 | something for us to read! */ | |
2960 | abort (); | |
2961 | ||
d9d4c147 | 2962 | input_pending = readable_events (0); |
284f4730 | 2963 | |
4c52b668 | 2964 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 2965 | |
284f4730 JB |
2966 | return (obj); |
2967 | } | |
a612e298 RS |
2968 | \f |
2969 | /* Process any events that are not user-visible, | |
2970 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
2971 | |
2972 | void | |
d9d4c147 KH |
2973 | swallow_events (do_display) |
2974 | int do_display; | |
3a3b9632 | 2975 | { |
87dd9b9b RS |
2976 | int old_timers_run; |
2977 | ||
beecf6a1 | 2978 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
2979 | { |
2980 | struct input_event *event; | |
2981 | ||
beecf6a1 KH |
2982 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2983 | ? kbd_fetch_ptr | |
2984 | : kbd_buffer); | |
3a3b9632 RS |
2985 | |
2986 | last_event_timestamp = event->timestamp; | |
2987 | ||
2988 | /* These two kinds of events get special handling | |
2989 | and don't actually appear to the command loop. */ | |
2990 | if (event->kind == selection_request_event) | |
2991 | { | |
2992 | #ifdef HAVE_X11 | |
4581e928 | 2993 | struct input_event copy; |
e0301c07 RS |
2994 | |
2995 | /* Remove it from the buffer before processing it, | |
2996 | since otherwise swallow_events called recursively could see it | |
2997 | and process it again. */ | |
4581e928 | 2998 | copy = *event; |
beecf6a1 | 2999 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3000 | input_pending = readable_events (0); |
4581e928 | 3001 | x_handle_selection_request (©); |
3a3b9632 RS |
3002 | #else |
3003 | /* We're getting selection request events, but we don't have | |
3004 | a window system. */ | |
3005 | abort (); | |
3006 | #endif | |
3007 | } | |
3008 | ||
3009 | else if (event->kind == selection_clear_event) | |
3010 | { | |
3011 | #ifdef HAVE_X11 | |
e0301c07 RS |
3012 | struct input_event copy; |
3013 | ||
3014 | /* Remove it from the buffer before processing it, */ | |
3015 | copy = *event; | |
3016 | ||
beecf6a1 | 3017 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3018 | input_pending = readable_events (0); |
90c2bb0c | 3019 | x_handle_selection_clear (©); |
3a3b9632 RS |
3020 | #else |
3021 | /* We're getting selection request events, but we don't have | |
3022 | a window system. */ | |
3023 | abort (); | |
3024 | #endif | |
3025 | } | |
3026 | else | |
3027 | break; | |
3028 | } | |
3029 | ||
87dd9b9b | 3030 | old_timers_run = timers_run; |
d9d4c147 | 3031 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3032 | |
3033 | if (timers_run != old_timers_run && do_display) | |
3034 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3035 | } |
a612e298 | 3036 | \f |
d9d4c147 KH |
3037 | static EMACS_TIME timer_idleness_start_time; |
3038 | ||
3039 | /* Record the start of when Emacs is idle, | |
3040 | for the sake of running idle-time timers. */ | |
3041 | ||
07a59269 | 3042 | void |
d9d4c147 KH |
3043 | timer_start_idle () |
3044 | { | |
3045 | Lisp_Object timers; | |
3046 | ||
3047 | /* If we are already in the idle state, do nothing. */ | |
3048 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3049 | return; | |
3050 | ||
3051 | EMACS_GET_TIME (timer_idleness_start_time); | |
3052 | ||
3053 | /* Mark all idle-time timers as once again candidates for running. */ | |
3054 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCONS (timers)->cdr) | |
3055 | { | |
3056 | Lisp_Object timer; | |
3057 | ||
3058 | timer = XCONS (timers)->car; | |
3059 | ||
3060 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3061 | continue; | |
3062 | XVECTOR (timer)->contents[0] = Qnil; | |
3063 | } | |
3064 | } | |
3065 | ||
3066 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3067 | ||
07a59269 | 3068 | void |
d9d4c147 KH |
3069 | timer_stop_idle () |
3070 | { | |
3071 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3072 | } | |
3073 | ||
e044e87c RS |
3074 | /* This is only for debugging. */ |
3075 | struct input_event last_timer_event; | |
3076 | ||
c04cbc3b RS |
3077 | /* Check whether a timer has fired. To prevent larger problems we simply |
3078 | disregard elements that are not proper timers. Do not make a circular | |
3079 | timer list for the time being. | |
3080 | ||
3081 | Returns the number of seconds to wait until the next timer fires. If a | |
3082 | timer is triggering now, return zero seconds. | |
3083 | If no timer is active, return -1 seconds. | |
3084 | ||
4ec4ed6a RS |
3085 | If a timer is ripe, we run it, with quitting turned off. |
3086 | ||
3087 | DO_IT_NOW is now ignored. It used to mean that we should | |
3088 | run the timer directly instead of queueing a timer-event. | |
3089 | Now we always run timers directly. */ | |
c04cbc3b RS |
3090 | |
3091 | EMACS_TIME | |
3092 | timer_check (do_it_now) | |
3093 | int do_it_now; | |
3094 | { | |
3095 | EMACS_TIME nexttime; | |
9291c072 RS |
3096 | EMACS_TIME now, idleness_now; |
3097 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3098 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3099 | |
c04cbc3b RS |
3100 | EMACS_SET_SECS (nexttime, -1); |
3101 | EMACS_SET_USECS (nexttime, -1); | |
3102 | ||
9291c072 | 3103 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3104 | timers = Vtimer_list; |
9291c072 RS |
3105 | /* Consider the idle timers only if Emacs is idle. */ |
3106 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3107 | idle_timers = Vtimer_idle_list; | |
3108 | else | |
3109 | idle_timers = Qnil; | |
3110 | chosen_timer = Qnil; | |
3111 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3112 | |
9291c072 | 3113 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3114 | { |
9291c072 RS |
3115 | EMACS_GET_TIME (now); |
3116 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3117 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3118 | } | |
c04cbc3b | 3119 | |
9291c072 RS |
3120 | while (CONSP (timers) || CONSP (idle_timers)) |
3121 | { | |
3122 | int triggertime = EMACS_SECS (now); | |
3123 | Lisp_Object *vector; | |
3124 | Lisp_Object timer, idle_timer; | |
3125 | EMACS_TIME timer_time, idle_timer_time; | |
3126 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3127 | ||
3128 | /* Skip past invalid timers and timers already handled. */ | |
3129 | if (!NILP (timers)) | |
c04cbc3b | 3130 | { |
d9d4c147 | 3131 | timer = XCONS (timers)->car; |
9291c072 RS |
3132 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3133 | { | |
3134 | timers = XCONS (timers)->cdr; | |
3135 | continue; | |
3136 | } | |
3137 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3138 | |
9291c072 RS |
3139 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3140 | || !INTEGERP (vector[3]) | |
3141 | || ! NILP (vector[0])) | |
3142 | { | |
3143 | timers = XCONS (timers)->cdr; | |
3144 | continue; | |
3145 | } | |
3146 | } | |
3147 | if (!NILP (idle_timers)) | |
3148 | { | |
3149 | timer = XCONS (idle_timers)->car; | |
d9d4c147 | 3150 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 RS |
3151 | { |
3152 | idle_timers = XCONS (idle_timers)->cdr; | |
3153 | continue; | |
3154 | } | |
d9d4c147 KH |
3155 | vector = XVECTOR (timer)->contents; |
3156 | ||
3157 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3158 | || !INTEGERP (vector[3]) |
3159 | || ! NILP (vector[0])) | |
3160 | { | |
3161 | idle_timers = XCONS (idle_timers)->cdr; | |
3162 | continue; | |
3163 | } | |
3164 | } | |
d9d4c147 | 3165 | |
9291c072 RS |
3166 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3167 | based on the next ordinary timer. | |
3168 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3169 | this timer becomes ripe (negative if it's already ripe). */ | |
3170 | if (!NILP (timers)) | |
3171 | { | |
3172 | timer = XCONS (timers)->car; | |
3173 | vector = XVECTOR (timer)->contents; | |
d9d4c147 KH |
3174 | EMACS_SET_SECS (timer_time, |
3175 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3176 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3177 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3178 | } | |
ba8dfba8 | 3179 | |
9291c072 RS |
3180 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3181 | based on the next idle timer. */ | |
3182 | if (!NILP (idle_timers)) | |
3183 | { | |
3184 | idle_timer = XCONS (idle_timers)->car; | |
3185 | vector = XVECTOR (idle_timer)->contents; | |
3186 | EMACS_SET_SECS (idle_timer_time, | |
3187 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3188 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3189 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3190 | } | |
ba8dfba8 | 3191 | |
9291c072 RS |
3192 | /* Decide which timer is the next timer, |
3193 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3194 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3195 | |
9291c072 RS |
3196 | if (! NILP (timers) && ! NILP (idle_timers)) |
3197 | { | |
3198 | EMACS_TIME temp; | |
3199 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3200 | if (EMACS_TIME_NEG_P (temp)) | |
3201 | { | |
3202 | chosen_timer = timer; | |
3203 | timers = XCONS (timers)->cdr; | |
3204 | difference = timer_difference; | |
c04cbc3b | 3205 | } |
d9d4c147 | 3206 | else |
d9d4c147 | 3207 | { |
9291c072 RS |
3208 | chosen_timer = idle_timer; |
3209 | idle_timers = XCONS (idle_timers)->cdr; | |
3210 | difference = idle_timer_difference; | |
d9d4c147 | 3211 | } |
7ea13e12 | 3212 | } |
9291c072 RS |
3213 | else if (! NILP (timers)) |
3214 | { | |
3215 | chosen_timer = timer; | |
3216 | timers = XCONS (timers)->cdr; | |
3217 | difference = timer_difference; | |
3218 | } | |
3219 | else | |
3220 | { | |
3221 | chosen_timer = idle_timer; | |
3222 | idle_timers = XCONS (idle_timers)->cdr; | |
3223 | difference = idle_timer_difference; | |
3224 | } | |
3225 | vector = XVECTOR (chosen_timer)->contents; | |
3226 | ||
3227 | /* If timer is rupe, run it if it hasn't been run. */ | |
3228 | if (EMACS_TIME_NEG_P (difference) | |
3229 | || (EMACS_SECS (difference) == 0 | |
3230 | && EMACS_USECS (difference) == 0)) | |
3231 | { | |
3232 | if (NILP (vector[0])) | |
3233 | { | |
d925fb39 RS |
3234 | Lisp_Object tem; |
3235 | int was_locked = single_kboard; | |
3236 | int count = specpdl_ptr - specpdl; | |
3237 | ||
9291c072 RS |
3238 | /* Mark the timer as triggered to prevent problems if the lisp |
3239 | code fails to reschedule it right. */ | |
3240 | vector[0] = Qt; | |
3241 | ||
d925fb39 | 3242 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3243 | |
d925fb39 RS |
3244 | call1 (Qtimer_event_handler, chosen_timer); |
3245 | timers_run++; | |
9291c072 | 3246 | |
d925fb39 | 3247 | unbind_to (count, Qnil); |
4ec4ed6a | 3248 | |
d925fb39 RS |
3249 | /* Resume allowing input from any kboard, if that was true before. */ |
3250 | if (!was_locked) | |
3251 | any_kboard_state (); | |
9291c072 | 3252 | |
d925fb39 RS |
3253 | /* Since we have handled the event, |
3254 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3255 | } |
3256 | } | |
3257 | else | |
3258 | /* When we encounter a timer that is still waiting, | |
3259 | return the amount of time to wait before it is ripe. */ | |
3260 | { | |
3261 | UNGCPRO; | |
9291c072 RS |
3262 | return difference; |
3263 | } | |
c04cbc3b | 3264 | } |
9291c072 | 3265 | |
7ea13e12 RS |
3266 | /* No timers are pending in the future. */ |
3267 | /* Return 0 if we generated an event, and -1 if not. */ | |
3268 | UNGCPRO; | |
c04cbc3b RS |
3269 | return nexttime; |
3270 | } | |
3271 | \f | |
284f4730 | 3272 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3273 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3274 | static Lisp_Object func_key_syms; |
3275 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3276 | #ifdef WINDOWSNT |
3277 | static Lisp_Object mouse_wheel_syms; | |
3278 | #endif | |
284f4730 | 3279 | |
e9bf89a0 RS |
3280 | /* This is a list of keysym codes for special "accent" characters. |
3281 | It parallels lispy_accent_keys. */ | |
3282 | ||
3283 | static int lispy_accent_codes[] = | |
3284 | { | |
79a7046c | 3285 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3286 | XK_dead_circumflex, |
79a7046c RS |
3287 | #else |
3288 | 0, | |
3289 | #endif | |
3290 | #ifdef XK_dead_grave | |
e9bf89a0 | 3291 | XK_dead_grave, |
79a7046c RS |
3292 | #else |
3293 | 0, | |
3294 | #endif | |
3295 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3296 | XK_dead_tilde, |
79a7046c RS |
3297 | #else |
3298 | 0, | |
3299 | #endif | |
3300 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3301 | XK_dead_diaeresis, |
79a7046c RS |
3302 | #else |
3303 | 0, | |
3304 | #endif | |
3305 | #ifdef XK_dead_macron | |
e9bf89a0 | 3306 | XK_dead_macron, |
79a7046c RS |
3307 | #else |
3308 | 0, | |
3309 | #endif | |
3310 | #ifdef XK_dead_degree | |
e9bf89a0 | 3311 | XK_dead_degree, |
79a7046c RS |
3312 | #else |
3313 | 0, | |
3314 | #endif | |
3315 | #ifdef XK_dead_acute | |
e9bf89a0 | 3316 | XK_dead_acute, |
79a7046c RS |
3317 | #else |
3318 | 0, | |
3319 | #endif | |
3320 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3321 | XK_dead_cedilla, |
79a7046c RS |
3322 | #else |
3323 | 0, | |
3324 | #endif | |
3325 | #ifdef XK_dead_breve | |
e9bf89a0 | 3326 | XK_dead_breve, |
79a7046c RS |
3327 | #else |
3328 | 0, | |
3329 | #endif | |
3330 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3331 | XK_dead_ogonek, |
79a7046c RS |
3332 | #else |
3333 | 0, | |
3334 | #endif | |
3335 | #ifdef XK_dead_caron | |
e9bf89a0 | 3336 | XK_dead_caron, |
79a7046c RS |
3337 | #else |
3338 | 0, | |
3339 | #endif | |
3340 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3341 | XK_dead_doubleacute, |
79a7046c RS |
3342 | #else |
3343 | 0, | |
3344 | #endif | |
3345 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3346 | XK_dead_abovedot, |
79a7046c RS |
3347 | #else |
3348 | 0, | |
3349 | #endif | |
e9bf89a0 RS |
3350 | }; |
3351 | ||
3352 | /* This is a list of Lisp names for special "accent" characters. | |
3353 | It parallels lispy_accent_codes. */ | |
3354 | ||
3355 | static char *lispy_accent_keys[] = | |
3356 | { | |
3357 | "dead-circumflex", | |
3358 | "dead-grave", | |
3359 | "dead-tilde", | |
3360 | "dead-diaeresis", | |
3361 | "dead-macron", | |
3362 | "dead-degree", | |
3363 | "dead-acute", | |
3364 | "dead-cedilla", | |
3365 | "dead-breve", | |
3366 | "dead-ogonek", | |
3367 | "dead-caron", | |
3368 | "dead-doubleacute", | |
3369 | "dead-abovedot", | |
3370 | }; | |
3371 | ||
e98a93eb GV |
3372 | #ifdef HAVE_NTGUI |
3373 | #define FUNCTION_KEY_OFFSET 0x0 | |
3374 | ||
3375 | char *lispy_function_keys[] = | |
3376 | { | |
3377 | 0, /* 0 */ | |
3378 | ||
3379 | 0, /* VK_LBUTTON 0x01 */ | |
3380 | 0, /* VK_RBUTTON 0x02 */ | |
3381 | "cancel", /* VK_CANCEL 0x03 */ | |
3382 | 0, /* VK_MBUTTON 0x04 */ | |
3383 | ||
3384 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3385 | ||
3386 | "backspace", /* VK_BACK 0x08 */ | |
3387 | "tab", /* VK_TAB 0x09 */ | |
3388 | ||
3389 | 0, 0, /* 0x0A .. 0x0B */ | |
3390 | ||
3391 | "clear", /* VK_CLEAR 0x0C */ | |
3392 | "return", /* VK_RETURN 0x0D */ | |
3393 | ||
3394 | 0, 0, /* 0x0E .. 0x0F */ | |
3395 | ||
3396 | "shift", /* VK_SHIFT 0x10 */ | |
3397 | "control", /* VK_CONTROL 0x11 */ | |
3398 | "menu", /* VK_MENU 0x12 */ | |
3399 | "pause", /* VK_PAUSE 0x13 */ | |
3400 | "capital", /* VK_CAPITAL 0x14 */ | |
3401 | ||
3402 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3403 | ||
3404 | 0, /* VK_ESCAPE 0x1B */ | |
3405 | ||
3406 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3407 | ||
3408 | 0, /* VK_SPACE 0x20 */ | |
3409 | "prior", /* VK_PRIOR 0x21 */ | |
3410 | "next", /* VK_NEXT 0x22 */ | |
3411 | "end", /* VK_END 0x23 */ | |
3412 | "home", /* VK_HOME 0x24 */ | |
3413 | "left", /* VK_LEFT 0x25 */ | |
3414 | "up", /* VK_UP 0x26 */ | |
3415 | "right", /* VK_RIGHT 0x27 */ | |
3416 | "down", /* VK_DOWN 0x28 */ | |
3417 | "select", /* VK_SELECT 0x29 */ | |
3418 | "print", /* VK_PRINT 0x2A */ | |
3419 | "execute", /* VK_EXECUTE 0x2B */ | |
3420 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3421 | "insert", /* VK_INSERT 0x2D */ | |
3422 | "delete", /* VK_DELETE 0x2E */ | |
3423 | "help", /* VK_HELP 0x2F */ | |
3424 | ||
3425 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3426 | ||
3427 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3428 | ||
3429 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3430 | ||
3431 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3432 | ||
3433 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3434 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3435 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3436 | ||
e376f90d RS |
3437 | "lwindow", /* VK_LWIN 0x5B */ |
3438 | "rwindow", /* VK_RWIN 0x5C */ | |
3439 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3440 | |
3441 | 0, 0, /* 0x5E .. 0x5F */ | |
3442 | ||
3443 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3444 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3445 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3446 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3447 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3448 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3449 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3450 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3451 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3452 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3453 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3454 | "kp-add", /* VK_ADD 0x6B */ | |
3455 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3456 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3457 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3458 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3459 | "f1", /* VK_F1 0x70 */ | |
3460 | "f2", /* VK_F2 0x71 */ | |
3461 | "f3", /* VK_F3 0x72 */ | |
3462 | "f4", /* VK_F4 0x73 */ | |
3463 | "f5", /* VK_F5 0x74 */ | |
3464 | "f6", /* VK_F6 0x75 */ | |
3465 | "f7", /* VK_F7 0x76 */ | |
3466 | "f8", /* VK_F8 0x77 */ | |
3467 | "f9", /* VK_F9 0x78 */ | |
3468 | "f10", /* VK_F10 0x79 */ | |
3469 | "f11", /* VK_F11 0x7A */ | |
3470 | "f12", /* VK_F12 0x7B */ | |
3471 | "f13", /* VK_F13 0x7C */ | |
3472 | "f14", /* VK_F14 0x7D */ | |
3473 | "f15", /* VK_F15 0x7E */ | |
3474 | "f16", /* VK_F16 0x7F */ | |
3475 | "f17", /* VK_F17 0x80 */ | |
3476 | "f18", /* VK_F18 0x81 */ | |
3477 | "f19", /* VK_F19 0x82 */ | |
3478 | "f20", /* VK_F20 0x83 */ | |
3479 | "f21", /* VK_F21 0x84 */ | |
3480 | "f22", /* VK_F22 0x85 */ | |
3481 | "f23", /* VK_F23 0x86 */ | |
3482 | "f24", /* VK_F24 0x87 */ | |
3483 | ||
3484 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3485 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3486 | ||
3487 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3488 | "scroll", /* VK_SCROLL 0x91 */ | |
3489 | ||
e376f90d RS |
3490 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3491 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3492 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3493 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3494 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3495 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3496 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3497 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3498 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3499 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3500 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3501 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3502 | ||
3503 | 0, 0, /* 0x9E .. 0x9F */ | |
3504 | ||
e98a93eb GV |
3505 | /* |
3506 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
3507 | * Used only as parameters to GetAsyncKeyState() and GetKeyState(). | |
3508 | * No other API or message will distinguish left and right keys this way. | |
3509 | */ | |
3510 | /* 0xA0 .. 0xEF */ | |
3511 | ||
3512 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3513 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3514 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3515 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3516 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3517 | ||
3518 | /* 0xF0 .. 0xF5 */ | |
3519 | ||
3520 | 0, 0, 0, 0, 0, 0, | |
3521 | ||
3522 | "attn", /* VK_ATTN 0xF6 */ | |
3523 | "crsel", /* VK_CRSEL 0xF7 */ | |
3524 | "exsel", /* VK_EXSEL 0xF8 */ | |
3525 | "ereof", /* VK_EREOF 0xF9 */ | |
3526 | "play", /* VK_PLAY 0xFA */ | |
3527 | "zoom", /* VK_ZOOM 0xFB */ | |
3528 | "noname", /* VK_NONAME 0xFC */ | |
3529 | "pa1", /* VK_PA1 0xFD */ | |
3530 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
3531 | }; | |
3532 | ||
04f215f0 | 3533 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3534 | |
37cd9f30 KH |
3535 | #ifdef XK_kana_A |
3536 | static char *lispy_kana_keys[] = | |
3537 | { | |
3538 | /* X Keysym value */ | |
3539 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3540 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3541 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3542 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3543 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3544 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3545 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3546 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3547 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3548 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3549 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3550 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3551 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3552 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3553 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3554 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3555 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3556 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3557 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3558 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3559 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3560 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3561 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3562 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3563 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3564 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3565 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3566 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3567 | }; | |
3568 | #endif /* XK_kana_A */ | |
3569 | ||
04f215f0 RS |
3570 | #define FUNCTION_KEY_OFFSET 0xff00 |
3571 | ||
284f4730 JB |
3572 | /* You'll notice that this table is arranged to be conveniently |
3573 | indexed by X Windows keysym values. */ | |
3574 | static char *lispy_function_keys[] = | |
3575 | { | |
3576 | /* X Keysym value */ | |
3577 | ||
80e4aa30 | 3578 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00 */ |
86e5706b RS |
3579 | "backspace", |
3580 | "tab", | |
3581 | "linefeed", | |
3582 | "clear", | |
3583 | 0, | |
3584 | "return", | |
3585 | 0, 0, | |
3586 | 0, 0, 0, /* 0xff10 */ | |
3587 | "pause", | |
3588 | 0, 0, 0, 0, 0, 0, 0, | |
3589 | "escape", | |
3590 | 0, 0, 0, 0, | |
37cd9f30 KH |
3591 | 0, "kanji", "muhenkan", |
3592 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff20...2f */ | |
86e5706b RS |
3593 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff30...3f */ |
3594 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ | |
3595 | ||
284f4730 JB |
3596 | "home", /* 0xff50 */ /* IsCursorKey */ |
3597 | "left", | |
3598 | "up", | |
3599 | "right", | |
3600 | "down", | |
3601 | "prior", | |
3602 | "next", | |
3603 | "end", | |
3604 | "begin", | |
3605 | 0, /* 0xff59 */ | |
3606 | 0, 0, 0, 0, 0, 0, | |
3607 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ | |
3608 | "print", | |
3609 | "execute", | |
3610 | "insert", | |
3611 | 0, /* 0xff64 */ | |
3612 | "undo", | |
3613 | "redo", | |
3614 | "menu", | |
3615 | "find", | |
3616 | "cancel", | |
3617 | "help", | |
3618 | "break", /* 0xff6b */ | |
3619 | ||
9fdbfdf8 | 3620 | 0, 0, 0, 0, 0, 0, 0, 0, "backtab", 0, |
284f4730 | 3621 | 0, /* 0xff76 */ |
36ae397e | 3622 | 0, 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff7f */ |
284f4730 JB |
3623 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3624 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3625 | "kp-tab", /* 0xff89 */ | |
3626 | 0, 0, 0, | |
3627 | "kp-enter", /* 0xff8d */ | |
3628 | 0, 0, 0, | |
3629 | "kp-f1", /* 0xff91 */ | |
3630 | "kp-f2", | |
3631 | "kp-f3", | |
3632 | "kp-f4", | |
872157e7 RS |
3633 | "kp-home", /* 0xff95 */ |
3634 | "kp-left", | |
3635 | "kp-up", | |
3636 | "kp-right", | |
3637 | "kp-down", | |
3638 | "kp-prior", /* kp-page-up */ | |
3639 | "kp-next", /* kp-page-down */ | |
3640 | "kp-end", | |
3641 | "kp-begin", | |
3642 | "kp-insert", | |
3643 | "kp-delete", | |
3644 | 0, /* 0xffa0 */ | |
3645 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3646 | "kp-multiply", /* 0xffaa */ |
3647 | "kp-add", | |
3648 | "kp-separator", | |
3649 | "kp-subtract", | |
3650 | "kp-decimal", | |
3651 | "kp-divide", /* 0xffaf */ | |
3652 | "kp-0", /* 0xffb0 */ | |
3653 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3654 | 0, /* 0xffba */ | |
3655 | 0, 0, | |
3656 | "kp-equal", /* 0xffbd */ | |
3657 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3658 | "f2", |
3659 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3660 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3661 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3662 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3663 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3664 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3665 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3666 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 3667 | }; |
284f4730 | 3668 | |
04f215f0 RS |
3669 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
3670 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
3671 | ||
3672 | static char *iso_lispy_function_keys[] = | |
3673 | { | |
3674 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
3675 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
3676 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
3677 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
3678 | "iso-lefttab", /* 0xfe20 */ | |
3679 | "iso-move-line-up", "iso-move-line-down", | |
3680 | "iso-partial-line-up", "iso-partial-line-down", | |
3681 | "iso-partial-space-left", "iso-partial-space-right", | |
3682 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
3683 | "iso-release-margin-left", "iso-release-margin-right", | |
3684 | "iso-release-both-margins", | |
3685 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
3686 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
3687 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
3688 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
3689 | }; | |
3690 | ||
3691 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 3692 | |
df0f2ba1 | 3693 | static char *lispy_mouse_names[] = |
284f4730 JB |
3694 | { |
3695 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3696 | }; | |
3697 | ||
07de30b9 GV |
3698 | #ifdef WINDOWSNT |
3699 | /* mouse-wheel events are generated by the wheel on devices such as | |
3700 | the MS Intellimouse. The wheel sits in between the left and right | |
3701 | mouse buttons, and is typically used to scroll or zoom the window | |
3702 | underneath the pointer. mouse-wheel events specify the object on | |
3703 | which they operate, and a delta corresponding to the amount and | |
3704 | direction that the wheel is rotated. Clicking the mouse-wheel | |
3705 | generates a mouse-2 event. */ | |
3706 | static char *lispy_mouse_wheel_names[] = | |
3707 | { | |
3708 | "mouse-wheel" | |
3709 | }; | |
3710 | #endif /* WINDOWSNT */ | |
3711 | ||
3c370943 | 3712 | /* Scroll bar parts. */ |
4bb994d1 | 3713 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
db08707d | 3714 | Lisp_Object Qup, Qdown; |
4bb994d1 | 3715 | |
3c370943 JB |
3716 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
3717 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d RS |
3718 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
3719 | &Qup, &Qdown, | |
4bb994d1 JB |
3720 | }; |
3721 | ||
3722 | ||
7b4aedb9 | 3723 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 3724 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
3725 | |
3726 | The elements have the form | |
3727 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
3728 | where REST is the cdr of a position as it would be reported in the event. | |
3729 | ||
3730 | The make_lispy_event function stores positions here to tell the | |
3731 | difference between click and drag events, and to store the starting | |
3732 | location to be included in drag events. */ | |
3733 | ||
3734 | static Lisp_Object button_down_location; | |
88cb0656 | 3735 | |
fbcd35bd JB |
3736 | /* Information about the most recent up-going button event: Which |
3737 | button, what location, and what time. */ | |
3738 | ||
559f9d04 RS |
3739 | static int last_mouse_button; |
3740 | static int last_mouse_x; | |
3741 | static int last_mouse_y; | |
3742 | static unsigned long button_down_time; | |
fbcd35bd | 3743 | |
564dc952 JB |
3744 | /* The maximum time between clicks to make a double-click, |
3745 | or Qnil to disable double-click detection, | |
3746 | or Qt for no time limit. */ | |
3747 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
3748 | |
3749 | /* The number of clicks in this multiple-click. */ | |
3750 | ||
3751 | int double_click_count; | |
3752 | ||
284f4730 JB |
3753 | /* Given a struct input_event, build the lisp event which represents |
3754 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
3755 | movement buffer, which should have a movement event in it. |
3756 | ||
3757 | Note that events must be passed to this function in the order they | |
3758 | are received; this function stores the location of button presses | |
3759 | in order to build drag events when the button is released. */ | |
284f4730 JB |
3760 | |
3761 | static Lisp_Object | |
3762 | make_lispy_event (event) | |
3763 | struct input_event *event; | |
3764 | { | |
79a7046c RS |
3765 | int i; |
3766 | ||
0220c518 | 3767 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 3768 | { |
284f4730 JB |
3769 | /* A simple keystroke. */ |
3770 | case ascii_keystroke: | |
86e5706b | 3771 | { |
9343ab07 | 3772 | Lisp_Object lispy_c; |
e9bf89a0 | 3773 | int c = event->code & 0377; |
5a1c6df8 JB |
3774 | /* Turn ASCII characters into control characters |
3775 | when proper. */ | |
3776 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
3777 | c = make_ctrl_char (c); |
3778 | ||
3779 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
3780 | just above, and the shift key was taken care of by the X code, | |
3781 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
3782 | c |= (event->modifiers |
3783 | & (meta_modifier | alt_modifier | |
3784 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
3785 | /* Distinguish Shift-SPC from SPC. */ |
3786 | if ((event->code & 0377) == 040 | |
3787 | && event->modifiers & shift_modifier) | |
3788 | c |= shift_modifier; | |
559f9d04 | 3789 | button_down_time = 0; |
bb9e9bed | 3790 | XSETFASTINT (lispy_c, c); |
9343ab07 | 3791 | return lispy_c; |
86e5706b | 3792 | } |
284f4730 JB |
3793 | |
3794 | /* A function key. The symbol may need to have modifier prefixes | |
3795 | tacked onto it. */ | |
3796 | case non_ascii_keystroke: | |
559f9d04 | 3797 | button_down_time = 0; |
e9bf89a0 RS |
3798 | |
3799 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
3800 | if (event->code == lispy_accent_codes[i]) | |
3801 | return modify_event_symbol (i, | |
3802 | event->modifiers, | |
80e4aa30 | 3803 | Qfunction_key, Qnil, |
e9bf89a0 RS |
3804 | lispy_accent_keys, &accent_key_syms, |
3805 | (sizeof (lispy_accent_keys) | |
3806 | / sizeof (lispy_accent_keys[0]))); | |
3807 | ||
270a208f | 3808 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
3809 | if (event->code & (1 << 28)) |
3810 | { | |
3811 | /* We need to use an alist rather than a vector as the cache | |
3812 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
3813 | if (NILP (current_kboard->system_key_syms)) |
3814 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 3815 | return modify_event_symbol (event->code, |
80e4aa30 | 3816 | event->modifiers, |
7c97ffdc KH |
3817 | Qfunction_key, |
3818 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
3819 | 0, ¤t_kboard->system_key_syms, |
3820 | (unsigned)-1); | |
80e4aa30 RS |
3821 | } |
3822 | ||
37cd9f30 KH |
3823 | #ifdef XK_kana_A |
3824 | if (event->code >= 0x400 && event->code < 0x500) | |
3825 | return modify_event_symbol (event->code - 0x400, | |
3826 | event->modifiers & ~shift_modifier, | |
3827 | Qfunction_key, Qnil, | |
3828 | lispy_kana_keys, &func_key_syms, | |
3829 | (sizeof (lispy_kana_keys) | |
3830 | / sizeof (lispy_kana_keys[0]))); | |
3831 | #endif /* XK_kana_A */ | |
3832 | ||
111c4138 | 3833 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
3834 | if (event->code < FUNCTION_KEY_OFFSET |
3835 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
3836 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
3837 | event->modifiers, | |
3838 | Qfunction_key, Qnil, | |
3839 | iso_lispy_function_keys, &func_key_syms, | |
3840 | (sizeof (iso_lispy_function_keys) | |
3841 | / sizeof (iso_lispy_function_keys[0]))); | |
3842 | else | |
111c4138 | 3843 | #endif |
04f215f0 RS |
3844 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
3845 | event->modifiers, | |
3846 | Qfunction_key, Qnil, | |
3847 | lispy_function_keys, &func_key_syms, | |
3848 | (sizeof (lispy_function_keys) | |
3849 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 3850 | |
514354e9 | 3851 | #ifdef HAVE_MOUSE |
df0f2ba1 | 3852 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 3853 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 3854 | case mouse_click: |
3c370943 | 3855 | case scroll_bar_click: |
284f4730 | 3856 | { |
e9bf89a0 | 3857 | int button = event->code; |
559f9d04 | 3858 | int is_double; |
7b4aedb9 | 3859 | Lisp_Object position; |
dbc4e1c1 JB |
3860 | Lisp_Object *start_pos_ptr; |
3861 | Lisp_Object start_pos; | |
284f4730 | 3862 | |
7b4aedb9 | 3863 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
3864 | abort (); |
3865 | ||
7b4aedb9 JB |
3866 | /* Build the position as appropriate for this mouse click. */ |
3867 | if (event->kind == mouse_click) | |
284f4730 | 3868 | { |
7b4aedb9 | 3869 | int part; |
598a9fa7 | 3870 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 3871 | Lisp_Object window; |
7b4aedb9 | 3872 | Lisp_Object posn; |
9e20143a RS |
3873 | int row, column; |
3874 | ||
5da3133a RS |
3875 | /* Ignore mouse events that were made on frame that |
3876 | have been deleted. */ | |
3877 | if (! FRAME_LIVE_P (f)) | |
3878 | return Qnil; | |
3879 | ||
9e20143a | 3880 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), |
6c6a9be8 | 3881 | &column, &row, NULL, 1); |
7b4aedb9 | 3882 | |
eef045bf RS |
3883 | #ifndef USE_X_TOOLKIT |
3884 | /* In the non-toolkit version, clicks on the menu bar | |
3885 | are ordinary button events in the event buffer. | |
3886 | Distinguish them, and invoke the menu. | |
3887 | ||
3888 | (In the toolkit version, the toolkit handles the menu bar | |
3889 | and Emacs doesn't know about it until after the user | |
3890 | makes a selection.) */ | |
2ee250ec RS |
3891 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
3892 | && (event->modifiers & down_modifier)) | |
bb936752 | 3893 | { |
b7c49376 | 3894 | Lisp_Object items, item; |
0a0e8fe6 RS |
3895 | int hpos; |
3896 | int i; | |
3897 | ||
2ee250ec | 3898 | #if 0 |
0a0e8fe6 RS |
3899 | /* Activate the menu bar on the down event. If the |
3900 | up event comes in before the menu code can deal with it, | |
3901 | just ignore it. */ | |
3902 | if (! (event->modifiers & down_modifier)) | |
3903 | return Qnil; | |
2ee250ec | 3904 | #endif |
0aafc975 | 3905 | |
f2ae6b3f | 3906 | item = Qnil; |
5ec75a55 | 3907 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 3908 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
3909 | { |
3910 | Lisp_Object pos, string; | |
b7c49376 | 3911 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 3912 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
3913 | if (NILP (string)) |
3914 | break; | |
9e20143a RS |
3915 | if (column >= XINT (pos) |
3916 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
3917 | { |
3918 | item = XVECTOR (items)->contents[i]; | |
3919 | break; | |
3920 | } | |
5ec75a55 | 3921 | } |
9e20143a | 3922 | |
5ec75a55 RS |
3923 | position |
3924 | = Fcons (event->frame_or_window, | |
3925 | Fcons (Qmenu_bar, | |
3926 | Fcons (Fcons (event->x, event->y), | |
3927 | Fcons (make_number (event->timestamp), | |
3928 | Qnil)))); | |
3929 | ||
b7c49376 | 3930 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 3931 | } |
eef045bf | 3932 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 3933 | |
9e20143a | 3934 | window = window_from_coordinates (f, column, row, &part); |
0aafc975 | 3935 | |
8c18cbfb | 3936 | if (!WINDOWP (window)) |
78ced549 RS |
3937 | { |
3938 | window = event->frame_or_window; | |
3939 | posn = Qnil; | |
3940 | } | |
284f4730 | 3941 | else |
7b4aedb9 | 3942 | { |
9e20143a | 3943 | int pixcolumn, pixrow; |
c8738c33 | 3944 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
3945 | row -= XINT (XWINDOW (window)->top); |
3946 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
3947 | XSETINT (event->x, pixcolumn); | |
3948 | XSETINT (event->y, pixrow); | |
dbc4e1c1 | 3949 | |
7b4aedb9 JB |
3950 | if (part == 1) |
3951 | posn = Qmode_line; | |
3952 | else if (part == 2) | |
3953 | posn = Qvertical_line; | |
3954 | else | |
18cd2eeb KH |
3955 | XSETINT (posn, |
3956 | buffer_posn_from_coords (XWINDOW (window), | |
3957 | column, row)); | |
7b4aedb9 JB |
3958 | } |
3959 | ||
5ec75a55 RS |
3960 | position |
3961 | = Fcons (window, | |
3962 | Fcons (posn, | |
3963 | Fcons (Fcons (event->x, event->y), | |
3964 | Fcons (make_number (event->timestamp), | |
3965 | Qnil)))); | |
284f4730 | 3966 | } |
7b4aedb9 | 3967 | else |
88cb0656 | 3968 | { |
9e20143a RS |
3969 | Lisp_Object window; |
3970 | Lisp_Object portion_whole; | |
3971 | Lisp_Object part; | |
3972 | ||
3973 | window = event->frame_or_window; | |
3974 | portion_whole = Fcons (event->x, event->y); | |
3975 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 3976 | |
db08707d RS |
3977 | position |
3978 | = Fcons (window, | |
3979 | Fcons (Qvertical_scroll_bar, | |
3980 | Fcons (portion_whole, | |
3981 | Fcons (make_number (event->timestamp), | |
3982 | Fcons (part, Qnil))))); | |
88cb0656 JB |
3983 | } |
3984 | ||
dbc4e1c1 JB |
3985 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
3986 | ||
3987 | start_pos = *start_pos_ptr; | |
3988 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 3989 | |
559f9d04 RS |
3990 | is_double = (button == last_mouse_button |
3991 | && XINT (event->x) == last_mouse_x | |
3992 | && XINT (event->y) == last_mouse_y | |
3993 | && button_down_time != 0 | |
3994 | && (EQ (Vdouble_click_time, Qt) | |
3995 | || (INTEGERP (Vdouble_click_time) | |
3996 | && ((int)(event->timestamp - button_down_time) | |
3997 | < XINT (Vdouble_click_time))))); | |
3998 | last_mouse_button = button; | |
3999 | last_mouse_x = XINT (event->x); | |
4000 | last_mouse_y = XINT (event->y); | |
4001 | ||
7b4aedb9 JB |
4002 | /* If this is a button press, squirrel away the location, so |
4003 | we can decide later whether it was a click or a drag. */ | |
4004 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4005 | { |
4006 | if (is_double) | |
4007 | { | |
4008 | double_click_count++; | |
4009 | event->modifiers |= ((double_click_count > 2) | |
4010 | ? triple_modifier | |
4011 | : double_modifier); | |
4012 | } | |
4013 | else | |
4014 | double_click_count = 1; | |
4015 | button_down_time = event->timestamp; | |
4016 | *start_pos_ptr = Fcopy_alist (position); | |
4017 | } | |
7b4aedb9 | 4018 | |
88cb0656 | 4019 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4020 | see if this was a click or a drag. */ |
88cb0656 JB |
4021 | else if (event->modifiers & up_modifier) |
4022 | { | |
48e416d4 RS |
4023 | /* If we did not see a down before this up, |
4024 | ignore the up. Probably this happened because | |
4025 | the down event chose a menu item. | |
4026 | It would be an annoyance to treat the release | |
4027 | of the button that chose the menu item | |
4028 | as a separate event. */ | |
4029 | ||
8c18cbfb | 4030 | if (!CONSP (start_pos)) |
48e416d4 RS |
4031 | return Qnil; |
4032 | ||
88cb0656 | 4033 | event->modifiers &= ~up_modifier; |
48e416d4 | 4034 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4035 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4036 | event->modifiers |= click_modifier; |
4037 | else | |
48e416d4 | 4038 | #endif |
dbc4e1c1 JB |
4039 | { |
4040 | /* The third element of every position should be the (x,y) | |
4041 | pair. */ | |
9b8eb840 | 4042 | Lisp_Object down; |
dbc4e1c1 | 4043 | |
9b8eb840 | 4044 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
4045 | if (EQ (event->x, XCONS (down)->car) |
4046 | && EQ (event->y, XCONS (down)->cdr)) | |
4047 | { | |
bc536d84 | 4048 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4049 | } |
4050 | else | |
4051 | { | |
559f9d04 | 4052 | button_down_time = 0; |
fbcd35bd JB |
4053 | event->modifiers |= drag_modifier; |
4054 | } | |
bc536d84 RS |
4055 | /* Don't check is_double; treat this as multiple |
4056 | if the down-event was multiple. */ | |
4057 | if (double_click_count > 1) | |
4058 | event->modifiers |= ((double_click_count > 2) | |
4059 | ? triple_modifier | |
4060 | : double_modifier); | |
dbc4e1c1 | 4061 | } |
88cb0656 JB |
4062 | } |
4063 | else | |
4064 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4065 | the up_modifier set. */ |
88cb0656 JB |
4066 | abort (); |
4067 | ||
88cb0656 | 4068 | { |
7b4aedb9 | 4069 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4070 | Lisp_Object head; |
4071 | ||
4072 | head = modify_event_symbol (button, | |
4073 | event->modifiers, | |
4074 | Qmouse_click, Qnil, | |
4075 | lispy_mouse_names, &mouse_syms, | |
4076 | (sizeof (lispy_mouse_names) | |
4077 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4078 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4079 | return Fcons (head, |
4080 | Fcons (start_pos, | |
4081 | Fcons (position, | |
4082 | Qnil))); | |
fbcd35bd JB |
4083 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4084 | return Fcons (head, | |
4085 | Fcons (position, | |
4086 | Fcons (make_number (double_click_count), | |
4087 | Qnil))); | |
88cb0656 JB |
4088 | else |
4089 | return Fcons (head, | |
7b4aedb9 | 4090 | Fcons (position, |
88cb0656 JB |
4091 | Qnil)); |
4092 | } | |
284f4730 | 4093 | } |
db08707d RS |
4094 | |
4095 | #ifdef WINDOWSNT | |
fbd6baed | 4096 | case w32_scroll_bar_click: |
db08707d RS |
4097 | { |
4098 | int button = event->code; | |
4099 | int is_double; | |
4100 | Lisp_Object position; | |
4101 | Lisp_Object *start_pos_ptr; | |
4102 | Lisp_Object start_pos; | |
4103 | ||
4104 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4105 | abort (); | |
4106 | ||
4107 | { | |
4108 | Lisp_Object window; | |
4109 | Lisp_Object portion_whole; | |
4110 | Lisp_Object part; | |
4111 | ||
4112 | window = event->frame_or_window; | |
4113 | portion_whole = Fcons (event->x, event->y); | |
4114 | part = *scroll_bar_parts[(int) event->part]; | |
4115 | ||
4116 | position = | |
4117 | Fcons (window, | |
4118 | Fcons (Qvertical_scroll_bar, | |
4119 | Fcons (portion_whole, | |
4120 | Fcons (make_number (event->timestamp), | |
4121 | Fcons (part, Qnil))))); | |
4122 | } | |
4123 | ||
fbd6baed | 4124 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4125 | event->modifiers |= click_modifier; |
4126 | ||
4127 | { | |
4128 | /* Get the symbol we should use for the mouse click. */ | |
4129 | Lisp_Object head; | |
4130 | ||
4131 | head = modify_event_symbol (button, | |
4132 | event->modifiers, | |
4133 | Qmouse_click, Qnil, | |
4134 | lispy_mouse_names, &mouse_syms, | |
4135 | (sizeof (lispy_mouse_names) | |
4136 | / sizeof (lispy_mouse_names[0]))); | |
4137 | return Fcons (head, | |
4138 | Fcons (position, | |
4139 | Qnil)); | |
4140 | } | |
4141 | } | |
07de30b9 GV |
4142 | case mouse_wheel: |
4143 | { | |
4144 | int part; | |
4145 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4146 | Lisp_Object window; | |
4147 | Lisp_Object posn; | |
4148 | Lisp_Object head, position; | |
4149 | int row, column; | |
4150 | ||
4151 | /* Ignore mouse events that were made on frame that | |
4152 | have been deleted. */ | |
4153 | if (! FRAME_LIVE_P (f)) | |
4154 | return Qnil; | |
4155 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4156 | &column, &row, NULL, 1); | |
4157 | window = window_from_coordinates (f, column, row, &part); | |
4158 | ||
4159 | if (!WINDOWP (window)) | |
4160 | { | |
4161 | window = event->frame_or_window; | |
4162 | posn = Qnil; | |
4163 | } | |
4164 | else | |
4165 | { | |
4166 | int pixcolumn, pixrow; | |
4167 | column -= XINT (XWINDOW (window)->left); | |
4168 | row -= XINT (XWINDOW (window)->top); | |
4169 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4170 | XSETINT (event->x, pixcolumn); | |
4171 | XSETINT (event->y, pixrow); | |
4172 | ||
4173 | if (part == 1) | |
4174 | posn = Qmode_line; | |
4175 | else if (part == 2) | |
4176 | posn = Qvertical_line; | |
4177 | else | |
4178 | XSETINT (posn, | |
4179 | buffer_posn_from_coords (XWINDOW (window), | |
4180 | column, row)); | |
4181 | } | |
db08707d | 4182 | |
07de30b9 GV |
4183 | { |
4184 | Lisp_Object head, position; | |
4185 | ||
4186 | position | |
4187 | = Fcons (window, | |
4188 | Fcons (posn, | |
4189 | Fcons (Fcons (event->x, event->y), | |
4190 | Fcons (make_number (event->timestamp), | |
4191 | Qnil)))); | |
4192 | ||
4193 | head = modify_event_symbol (0, event->modifiers, | |
4194 | Qmouse_wheel, Qnil, | |
4195 | lispy_mouse_wheel_names, | |
4196 | &mouse_wheel_syms, 1); | |
4197 | return Fcons (head, | |
4198 | Fcons (position, | |
4199 | Fcons (make_number (event->code), | |
4200 | Qnil))); | |
4201 | } | |
4202 | } | |
4203 | #endif /* WINDOWSNT */ | |
514354e9 | 4204 | #endif /* HAVE_MOUSE */ |
284f4730 | 4205 | |
e98a93eb | 4206 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4207 | case menu_bar_event: |
4208 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4209 | if (!CONSP (event->frame_or_window)) | |
4210 | abort (); | |
4211 | return XCONS (event->frame_or_window)->cdr; | |
4212 | #endif | |
4213 | ||
284f4730 JB |
4214 | /* The 'kind' field of the event is something we don't recognize. */ |
4215 | default: | |
48e416d4 | 4216 | abort (); |
284f4730 JB |
4217 | } |
4218 | } | |
4219 | ||
514354e9 | 4220 | #ifdef HAVE_MOUSE |
6cbff1cb | 4221 | |
284f4730 | 4222 | static Lisp_Object |
7b4aedb9 | 4223 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4224 | FRAME_PTR frame; |
7b4aedb9 | 4225 | Lisp_Object bar_window; |
3c370943 | 4226 | enum scroll_bar_part part; |
284f4730 | 4227 | Lisp_Object x, y; |
e5d77022 | 4228 | unsigned long time; |
284f4730 | 4229 | { |
3c370943 | 4230 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4231 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4232 | { |
9b8eb840 | 4233 | Lisp_Object part_sym; |
4bb994d1 | 4234 | |
9b8eb840 | 4235 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4236 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4237 | (Fcons (Fcons (bar_window, |
3c370943 | 4238 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4239 | Fcons (Fcons (x, y), |
4240 | Fcons (make_number (time), | |
cb5df6ae | 4241 | Fcons (part_sym, |
4bb994d1 JB |
4242 | Qnil))))), |
4243 | Qnil))); | |
4244 | } | |
4245 | ||
4246 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4247 | else |
4248 | { | |
4bb994d1 | 4249 | int area; |
9e20143a | 4250 | Lisp_Object window; |
4bb994d1 | 4251 | Lisp_Object posn; |
9e20143a RS |
4252 | int column, row; |
4253 | ||
9e20143a | 4254 | if (frame) |
047688cb RS |
4255 | { |
4256 | /* It's in a frame; which window on that frame? */ | |
6c6a9be8 KH |
4257 | pixel_to_glyph_coords (frame, XINT (x), XINT (y), &column, &row, |
4258 | NULL, 1); | |
047688cb RS |
4259 | window = window_from_coordinates (frame, column, row, &area); |
4260 | } | |
9e20143a RS |
4261 | else |
4262 | window = Qnil; | |
4bb994d1 | 4263 | |
8c18cbfb | 4264 | if (WINDOWP (window)) |
4bb994d1 | 4265 | { |
9e20143a | 4266 | int pixcolumn, pixrow; |
c8738c33 | 4267 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
4268 | row -= XINT (XWINDOW (window)->top); |
4269 | glyph_to_pixel_coords (frame, column, row, &pixcolumn, &pixrow); | |
4270 | XSETINT (x, pixcolumn); | |
4271 | XSETINT (y, pixrow); | |
4bb994d1 JB |
4272 | |
4273 | if (area == 1) | |
4274 | posn = Qmode_line; | |
4275 | else if (area == 2) | |
4276 | posn = Qvertical_line; | |
4277 | else | |
18cd2eeb KH |
4278 | XSETINT (posn, |
4279 | buffer_posn_from_coords (XWINDOW (window), column, row)); | |
4bb994d1 | 4280 | } |
e9bf89a0 RS |
4281 | else if (frame != 0) |
4282 | { | |
18cd2eeb | 4283 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4284 | posn = Qnil; |
4285 | } | |
284f4730 | 4286 | else |
4bb994d1 JB |
4287 | { |
4288 | window = Qnil; | |
4289 | posn = Qnil; | |
bb9e9bed KH |
4290 | XSETFASTINT (x, 0); |
4291 | XSETFASTINT (y, 0); | |
4bb994d1 | 4292 | } |
284f4730 | 4293 | |
4bb994d1 JB |
4294 | return Fcons (Qmouse_movement, |
4295 | Fcons (Fcons (window, | |
4296 | Fcons (posn, | |
4297 | Fcons (Fcons (x, y), | |
4298 | Fcons (make_number (time), | |
4299 | Qnil)))), | |
4300 | Qnil)); | |
4301 | } | |
284f4730 JB |
4302 | } |
4303 | ||
514354e9 | 4304 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4305 | |
cd21b839 JB |
4306 | /* Construct a switch frame event. */ |
4307 | static Lisp_Object | |
4308 | make_lispy_switch_frame (frame) | |
4309 | Lisp_Object frame; | |
4310 | { | |
4311 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4312 | } | |
0a7f1fc0 JB |
4313 | \f |
4314 | /* Manipulating modifiers. */ | |
284f4730 | 4315 | |
0a7f1fc0 | 4316 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4317 | |
0a7f1fc0 JB |
4318 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4319 | SYMBOL's name of the end of the modifiers; the string from this | |
4320 | position is the unmodified symbol name. | |
284f4730 | 4321 | |
0a7f1fc0 | 4322 | This doesn't use any caches. */ |
6da3dd3a | 4323 | |
0a7f1fc0 JB |
4324 | static int |
4325 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4326 | Lisp_Object symbol; |
0a7f1fc0 | 4327 | int *modifier_end; |
284f4730 JB |
4328 | { |
4329 | struct Lisp_String *name; | |
4330 | int i; | |
4331 | int modifiers; | |
284f4730 JB |
4332 | |
4333 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4334 | |
284f4730 JB |
4335 | modifiers = 0; |
4336 | name = XSYMBOL (symbol)->name; | |
4337 | ||
301738ed | 4338 | for (i = 0; i+2 <= name->size_byte; ) |
6da3dd3a RS |
4339 | { |
4340 | int this_mod_end = 0; | |
4341 | int this_mod = 0; | |
284f4730 | 4342 | |
6da3dd3a RS |
4343 | /* See if the name continues with a modifier word. |
4344 | Check that the word appears, but don't check what follows it. | |
4345 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4346 | |
6da3dd3a RS |
4347 | switch (name->data[i]) |
4348 | { | |
4349 | #define SINGLE_LETTER_MOD(BIT) \ | |
4350 | (this_mod_end = i + 1, this_mod = BIT) | |
4351 | ||
6da3dd3a RS |
4352 | case 'A': |
4353 | SINGLE_LETTER_MOD (alt_modifier); | |
4354 | break; | |
284f4730 | 4355 | |
6da3dd3a RS |
4356 | case 'C': |
4357 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4358 | break; | |
284f4730 | 4359 | |
6da3dd3a RS |
4360 | case 'H': |
4361 | SINGLE_LETTER_MOD (hyper_modifier); | |
4362 | break; | |
4363 | ||
6da3dd3a RS |
4364 | case 'M': |
4365 | SINGLE_LETTER_MOD (meta_modifier); | |
4366 | break; | |
4367 | ||
6da3dd3a RS |
4368 | case 'S': |
4369 | SINGLE_LETTER_MOD (shift_modifier); | |
4370 | break; | |
4371 | ||
4372 | case 's': | |
6da3dd3a RS |
4373 | SINGLE_LETTER_MOD (super_modifier); |
4374 | break; | |
4375 | ||
0a7f1fc0 | 4376 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4377 | } |
4378 | ||
4379 | /* If we found no modifier, stop looking for them. */ | |
4380 | if (this_mod_end == 0) | |
4381 | break; | |
4382 | ||
4383 | /* Check there is a dash after the modifier, so that it | |
4384 | really is a modifier. */ | |
301738ed | 4385 | if (this_mod_end >= name->size_byte || name->data[this_mod_end] != '-') |
6da3dd3a RS |
4386 | break; |
4387 | ||
4388 | /* This modifier is real; look for another. */ | |
4389 | modifiers |= this_mod; | |
4390 | i = this_mod_end + 1; | |
4391 | } | |
284f4730 | 4392 | |
0a7f1fc0 | 4393 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4394 | if (! (modifiers & (down_modifier | drag_modifier |
4395 | | double_modifier | triple_modifier)) | |
301738ed | 4396 | && i + 7 == name->size_byte |
4bb994d1 | 4397 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4398 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4399 | modifiers |= click_modifier; |
4400 | ||
4401 | if (modifier_end) | |
4402 | *modifier_end = i; | |
4403 | ||
4404 | return modifiers; | |
4405 | } | |
4406 | ||
0a7f1fc0 JB |
4407 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4408 | prepended to the string BASE[0..BASE_LEN-1]. | |
4409 | This doesn't use any caches. */ | |
4410 | static Lisp_Object | |
301738ed | 4411 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4412 | int modifiers; |
4413 | char *base; | |
301738ed | 4414 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4415 | { |
4416 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4417 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4418 | reference to it. */ | |
301738ed RS |
4419 | char *new_mods |
4420 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 4421 | int mod_len; |
284f4730 | 4422 | |
284f4730 | 4423 | { |
0a7f1fc0 JB |
4424 | char *p = new_mods; |
4425 | ||
4426 | /* Only the event queue may use the `up' modifier; it should always | |
4427 | be turned into a click or drag event before presented to lisp code. */ | |
4428 | if (modifiers & up_modifier) | |
4429 | abort (); | |
4430 | ||
4431 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
4432 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
4433 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
4434 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
4435 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 4436 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
4437 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
4438 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
4439 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
4440 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
4441 | /* The click modifier is denoted by the absence of other modifiers. */ |
4442 | ||
4443 | *p = '\0'; | |
4444 | ||
4445 | mod_len = p - new_mods; | |
4446 | } | |
284f4730 | 4447 | |
0a7f1fc0 | 4448 | { |
9b8eb840 | 4449 | Lisp_Object new_name; |
df0f2ba1 | 4450 | |
301738ed RS |
4451 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
4452 | mod_len + base_len_byte); | |
0a7f1fc0 | 4453 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 4454 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
4455 | |
4456 | return Fintern (new_name, Qnil); | |
4457 | } | |
4458 | } | |
4459 | ||
4460 | ||
0a7f1fc0 JB |
4461 | static char *modifier_names[] = |
4462 | { | |
fbcd35bd | 4463 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 4464 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 4465 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 4466 | }; |
80645119 | 4467 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
4468 | |
4469 | static Lisp_Object modifier_symbols; | |
4470 | ||
4471 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
4472 | static Lisp_Object | |
4473 | lispy_modifier_list (modifiers) | |
4474 | int modifiers; | |
4475 | { | |
4476 | Lisp_Object modifier_list; | |
4477 | int i; | |
4478 | ||
4479 | modifier_list = Qnil; | |
80645119 | 4480 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 4481 | if (modifiers & (1<<i)) |
80645119 JB |
4482 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
4483 | modifier_list); | |
0a7f1fc0 JB |
4484 | |
4485 | return modifier_list; | |
4486 | } | |
4487 | ||
4488 | ||
4489 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
4490 | where UNMODIFIED is the unmodified form of SYMBOL, | |
4491 | MASK is the set of modifiers present in SYMBOL's name. | |
4492 | This is similar to parse_modifiers_uncached, but uses the cache in | |
4493 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
4494 | Qevent_symbol_elements property. */ | |
3d31316f | 4495 | |
0a7f1fc0 JB |
4496 | static Lisp_Object |
4497 | parse_modifiers (symbol) | |
4498 | Lisp_Object symbol; | |
4499 | { | |
9b8eb840 | 4500 | Lisp_Object elements; |
0a7f1fc0 | 4501 | |
9b8eb840 | 4502 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
4503 | if (CONSP (elements)) |
4504 | return elements; | |
4505 | else | |
4506 | { | |
4507 | int end; | |
ec0faad2 | 4508 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 4509 | Lisp_Object unmodified; |
0a7f1fc0 JB |
4510 | Lisp_Object mask; |
4511 | ||
9b8eb840 | 4512 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
301738ed | 4513 | XSYMBOL (symbol)->name->size_byte - end), |
9b8eb840 KH |
4514 | Qnil); |
4515 | ||
ec0faad2 | 4516 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 4517 | abort (); |
bb9e9bed | 4518 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
4519 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
4520 | ||
4521 | /* Cache the parsing results on SYMBOL. */ | |
4522 | Fput (symbol, Qevent_symbol_element_mask, | |
4523 | elements); | |
4524 | Fput (symbol, Qevent_symbol_elements, | |
4525 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
4526 | ||
4527 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
4528 | it would be nice to put that in unmodified's cache. | |
4529 | But we can't, since we're not sure that parse_modifiers is | |
4530 | canonical. */ | |
4531 | ||
4532 | return elements; | |
4533 | } | |
4534 | } | |
4535 | ||
4536 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
4537 | BASE must be unmodified. | |
4538 | ||
4539 | This is like apply_modifiers_uncached, but uses BASE's | |
4540 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
4541 | Qevent_symbol_elements properties, since it has that info anyway. |
4542 | ||
4543 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
4544 | the modified symbol. */ | |
0a7f1fc0 JB |
4545 | static Lisp_Object |
4546 | apply_modifiers (modifiers, base) | |
4547 | int modifiers; | |
4548 | Lisp_Object base; | |
4549 | { | |
7b4aedb9 | 4550 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 4551 | |
80645119 | 4552 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 4553 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 4554 | |
0a7f1fc0 | 4555 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 4556 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 4557 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 4558 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
4559 | |
4560 | if (CONSP (entry)) | |
7b4aedb9 JB |
4561 | new_symbol = XCONS (entry)->cdr; |
4562 | else | |
4563 | { | |
df0f2ba1 | 4564 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
4565 | new_symbol = apply_modifiers_uncached (modifiers, |
4566 | XSYMBOL (base)->name->data, | |
301738ed RS |
4567 | XSYMBOL (base)->name->size, |
4568 | XSYMBOL (base)->name->size_byte); | |
7b4aedb9 JB |
4569 | |
4570 | /* Add the new symbol to the base's cache. */ | |
4571 | entry = Fcons (index, new_symbol); | |
4572 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
4573 | ||
4574 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 4575 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
4576 | Fput (new_symbol, Qevent_symbol_element_mask, |
4577 | Fcons (base, Fcons (index, Qnil))); | |
4578 | Fput (new_symbol, Qevent_symbol_elements, | |
4579 | Fcons (base, lispy_modifier_list (modifiers))); | |
4580 | } | |
0a7f1fc0 | 4581 | |
df0f2ba1 | 4582 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
4583 | |
4584 | You'd think we could just set this once and for all when we | |
4585 | intern the symbol above, but reorder_modifiers may call us when | |
4586 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
4587 | because it has a Qmodifier_cache property it must have its |
4588 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
4589 | if (NILP (Fget (new_symbol, Qevent_kind))) |
4590 | { | |
9b8eb840 | 4591 | Lisp_Object kind; |
7b4aedb9 | 4592 | |
9b8eb840 | 4593 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
4594 | if (! NILP (kind)) |
4595 | Fput (new_symbol, Qevent_kind, kind); | |
4596 | } | |
4597 | ||
4598 | return new_symbol; | |
0a7f1fc0 JB |
4599 | } |
4600 | ||
4601 | ||
4602 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
4603 | return a symbol with the modifiers placed in the canonical order. | |
4604 | Canonical order is alphabetical, except for down and drag, which | |
4605 | always come last. The 'click' modifier is never written out. | |
4606 | ||
4607 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
4608 | and M-C-foo end up being equivalent in the keymap. */ | |
4609 | ||
4610 | Lisp_Object | |
4611 | reorder_modifiers (symbol) | |
4612 | Lisp_Object symbol; | |
4613 | { | |
4614 | /* It's hopefully okay to write the code this way, since everything | |
4615 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 4616 | Lisp_Object parsed; |
0a7f1fc0 | 4617 | |
9b8eb840 | 4618 | parsed = parse_modifiers (symbol); |
54593ed9 | 4619 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
4620 | XCONS (parsed)->car); |
4621 | } | |
4622 | ||
4623 | ||
284f4730 JB |
4624 | /* For handling events, we often want to produce a symbol whose name |
4625 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
4626 | to some base, like the name of a function key or mouse button. | |
4627 | modify_event_symbol produces symbols of this sort. | |
4628 | ||
4629 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
4630 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
4631 | in the table. | |
4632 | ||
80e4aa30 RS |
4633 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
4634 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
4635 | ||
284f4730 JB |
4636 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
4637 | persist between calls to modify_event_symbol that it can use to | |
4638 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 4639 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
4640 | |
4641 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 4642 | |
284f4730 JB |
4643 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
4644 | whose prefixes should be applied to the symbol name. | |
4645 | ||
4646 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 4647 | the returned symbol. |
88cb0656 JB |
4648 | |
4649 | The symbols we create are supposed to have an | |
eb8c3be9 | 4650 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
4651 | in the symbol's name. */ |
4652 | ||
284f4730 | 4653 | static Lisp_Object |
80e4aa30 RS |
4654 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
4655 | name_table, symbol_table, table_size) | |
284f4730 JB |
4656 | int symbol_num; |
4657 | unsigned modifiers; | |
4658 | Lisp_Object symbol_kind; | |
80e4aa30 | 4659 | Lisp_Object name_alist; |
284f4730 JB |
4660 | char **name_table; |
4661 | Lisp_Object *symbol_table; | |
2c834fb3 | 4662 | unsigned int table_size; |
284f4730 | 4663 | { |
80e4aa30 RS |
4664 | Lisp_Object value; |
4665 | Lisp_Object symbol_int; | |
4666 | ||
2c834fb3 KH |
4667 | /* Get rid of the "vendor-specific" bit here. */ |
4668 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
4669 | |
4670 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 4671 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 4672 | return Qnil; |
284f4730 | 4673 | |
80e4aa30 RS |
4674 | if (CONSP (*symbol_table)) |
4675 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
4676 | ||
0a7f1fc0 | 4677 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 4678 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
4679 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
4680 | we've never used that symbol before. */ | |
80e4aa30 | 4681 | else |
88cb0656 | 4682 | { |
80e4aa30 RS |
4683 | if (! VECTORP (*symbol_table) |
4684 | || XVECTOR (*symbol_table)->size != table_size) | |
4685 | { | |
4686 | Lisp_Object size; | |
0a7f1fc0 | 4687 | |
bb9e9bed | 4688 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
4689 | *symbol_table = Fmake_vector (size, Qnil); |
4690 | } | |
284f4730 | 4691 | |
80e4aa30 RS |
4692 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
4693 | } | |
284f4730 | 4694 | |
0a7f1fc0 | 4695 | /* Have we already used this symbol before? */ |
80e4aa30 | 4696 | if (NILP (value)) |
284f4730 | 4697 | { |
0a7f1fc0 | 4698 | /* No; let's create it. */ |
80e4aa30 | 4699 | if (!NILP (name_alist)) |
b64b4075 | 4700 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 4701 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 4702 | value = intern (name_table[symbol_num]); |
b64b4075 | 4703 | |
e98a93eb | 4704 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
4705 | if (NILP (value)) |
4706 | { | |
4707 | char *name = x_get_keysym_name (symbol_num); | |
4708 | if (name) | |
4709 | value = intern (name); | |
4710 | } | |
4711 | #endif | |
4712 | ||
b64b4075 | 4713 | if (NILP (value)) |
d1f50460 RS |
4714 | { |
4715 | char buf[20]; | |
4716 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 4717 | value = intern (buf); |
d1f50460 | 4718 | } |
0a7f1fc0 | 4719 | |
80e4aa30 | 4720 | if (CONSP (*symbol_table)) |
4205cb08 | 4721 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
4722 | else |
4723 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
4724 | ||
df0f2ba1 | 4725 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
4726 | builds the Qevent_symbol_elements property, which the user |
4727 | cares about. */ | |
80e4aa30 RS |
4728 | apply_modifiers (modifiers & click_modifier, value); |
4729 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 4730 | } |
88cb0656 | 4731 | |
0a7f1fc0 | 4732 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 4733 | return apply_modifiers (modifiers, value); |
284f4730 | 4734 | } |
6da3dd3a RS |
4735 | \f |
4736 | /* Convert a list that represents an event type, | |
4737 | such as (ctrl meta backspace), into the usual representation of that | |
4738 | event type as a number or a symbol. */ | |
4739 | ||
a1706c30 | 4740 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
4741 | "Convert the event description list EVENT-DESC to an event type.\n\ |
4742 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 4743 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 4744 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
4745 | The return value is an event type (a character or symbol) which\n\ |
4746 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
4747 | (event_desc) |
4748 | Lisp_Object event_desc; | |
6da3dd3a RS |
4749 | { |
4750 | Lisp_Object base; | |
4751 | int modifiers = 0; | |
4752 | Lisp_Object rest; | |
4753 | ||
4754 | base = Qnil; | |
e57d8fd8 | 4755 | rest = event_desc; |
6da3dd3a RS |
4756 | while (CONSP (rest)) |
4757 | { | |
4758 | Lisp_Object elt; | |
4759 | int this = 0; | |
4760 | ||
4761 | elt = XCONS (rest)->car; | |
377f24f5 | 4762 | rest = XCONS (rest)->cdr; |
6da3dd3a | 4763 | |
3d31316f | 4764 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 4765 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 4766 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
4767 | |
4768 | if (this != 0) | |
4769 | modifiers |= this; | |
4770 | else if (!NILP (base)) | |
4771 | error ("Two bases given in one event"); | |
4772 | else | |
4773 | base = elt; | |
4774 | ||
6da3dd3a RS |
4775 | } |
4776 | ||
3d31316f RS |
4777 | /* Let the symbol A refer to the character A. */ |
4778 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
4779 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
4780 | ||
6da3dd3a RS |
4781 | if (INTEGERP (base)) |
4782 | { | |
3d31316f RS |
4783 | /* Turn (shift a) into A. */ |
4784 | if ((modifiers & shift_modifier) != 0 | |
4785 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
4786 | { | |
4787 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
4788 | modifiers &= ~shift_modifier; | |
4789 | } | |
4790 | ||
4791 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 4792 | if (modifiers & ctrl_modifier) |
3d31316f | 4793 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
4794 | | make_ctrl_char (XINT (base))); |
4795 | else | |
4796 | return make_number (modifiers | XINT (base)); | |
4797 | } | |
4798 | else if (SYMBOLP (base)) | |
4799 | return apply_modifiers (modifiers, base); | |
4800 | else | |
4801 | error ("Invalid base event"); | |
4802 | } | |
4803 | ||
3d31316f RS |
4804 | /* Try to recognize SYMBOL as a modifier name. |
4805 | Return the modifier flag bit, or 0 if not recognized. */ | |
4806 | ||
4807 | static int | |
4808 | parse_solitary_modifier (symbol) | |
4809 | Lisp_Object symbol; | |
4810 | { | |
4811 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
4812 | ||
4813 | switch (name->data[0]) | |
4814 | { | |
4815 | #define SINGLE_LETTER_MOD(BIT) \ | |
301738ed | 4816 | if (name->size_byte == 1) \ |
3d31316f RS |
4817 | return BIT; |
4818 | ||
4819 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
301738ed | 4820 | if (LEN == name->size_byte \ |
3d31316f RS |
4821 | && ! strncmp (name->data, NAME, LEN)) \ |
4822 | return BIT; | |
4823 | ||
4824 | case 'A': | |
4825 | SINGLE_LETTER_MOD (alt_modifier); | |
4826 | break; | |
4827 | ||
4828 | case 'a': | |
4829 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
4830 | break; | |
4831 | ||
4832 | case 'C': | |
4833 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4834 | break; | |
4835 | ||
4836 | case 'c': | |
4837 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
4838 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
4839 | break; | |
4840 | ||
4841 | case 'H': | |
4842 | SINGLE_LETTER_MOD (hyper_modifier); | |
4843 | break; | |
4844 | ||
4845 | case 'h': | |
4846 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
4847 | break; | |
4848 | ||
4849 | case 'M': | |
4850 | SINGLE_LETTER_MOD (meta_modifier); | |
4851 | break; | |
4852 | ||
4853 | case 'm': | |
4854 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
4855 | break; | |
4856 | ||
4857 | case 'S': | |
4858 | SINGLE_LETTER_MOD (shift_modifier); | |
4859 | break; | |
4860 | ||
4861 | case 's': | |
4862 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
4863 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
4864 | SINGLE_LETTER_MOD (super_modifier); | |
4865 | break; | |
4866 | ||
4867 | case 'd': | |
4868 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
4869 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
4870 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
4871 | break; | |
4872 | ||
4873 | case 't': | |
4874 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
4875 | break; | |
4876 | ||
4877 | #undef SINGLE_LETTER_MOD | |
4878 | #undef MULTI_LETTER_MOD | |
4879 | } | |
4880 | ||
4881 | return 0; | |
4882 | } | |
4883 | ||
6da3dd3a RS |
4884 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
4885 | Such a list is not valid as an event, | |
4886 | but it can be a Lucid-style event type list. */ | |
4887 | ||
4888 | int | |
4889 | lucid_event_type_list_p (object) | |
4890 | Lisp_Object object; | |
4891 | { | |
4892 | Lisp_Object tail; | |
4893 | ||
4894 | if (! CONSP (object)) | |
4895 | return 0; | |
4896 | ||
4897 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
4898 | { | |
4899 | Lisp_Object elt; | |
4900 | elt = XCONS (tail)->car; | |
4901 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
4902 | return 0; | |
4903 | } | |
4904 | ||
4905 | return NILP (tail); | |
4906 | } | |
284f4730 | 4907 | \f |
284f4730 JB |
4908 | /* Store into *addr a value nonzero if terminal input chars are available. |
4909 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
4910 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
4911 | (In fact, this may actually read some input.) |
4912 | ||
4913 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
4914 | |
4915 | static void | |
d9d4c147 | 4916 | get_input_pending (addr, do_timers_now) |
284f4730 | 4917 | int *addr; |
d9d4c147 | 4918 | int do_timers_now; |
284f4730 JB |
4919 | { |
4920 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 4921 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
4922 | |
4923 | /* If input is being read as it arrives, and we have none, there is none. */ | |
4924 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
4925 | return; | |
4926 | ||
4927 | /* Try to read some input and see how much we get. */ | |
4928 | gobble_input (0); | |
d9d4c147 | 4929 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
4930 | } |
4931 | ||
81931ba1 | 4932 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 4933 | |
07a59269 | 4934 | void |
284f4730 JB |
4935 | gobble_input (expected) |
4936 | int expected; | |
4937 | { | |
4938 | #ifndef VMS | |
4939 | #ifdef SIGIO | |
4940 | if (interrupt_input) | |
4941 | { | |
32676c08 | 4942 | SIGMASKTYPE mask; |
4f8aaa74 | 4943 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 4944 | read_avail_input (expected); |
e065a56e | 4945 | sigsetmask (mask); |
284f4730 JB |
4946 | } |
4947 | else | |
81931ba1 RS |
4948 | #ifdef POLL_FOR_INPUT |
4949 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
4950 | { | |
4951 | SIGMASKTYPE mask; | |
4f8aaa74 | 4952 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
4953 | read_avail_input (expected); |
4954 | sigsetmask (mask); | |
4955 | } | |
4956 | else | |
87485d6f | 4957 | #endif |
284f4730 JB |
4958 | #endif |
4959 | read_avail_input (expected); | |
4960 | #endif | |
4961 | } | |
a8015ab5 | 4962 | |
241ceaf7 RS |
4963 | /* Put a buffer_switch_event in the buffer |
4964 | so that read_key_sequence will notice the new current buffer. */ | |
4965 | ||
07a59269 | 4966 | void |
a8015ab5 KH |
4967 | record_asynch_buffer_change () |
4968 | { | |
4969 | struct input_event event; | |
a30f0615 RS |
4970 | Lisp_Object tem; |
4971 | ||
a8015ab5 KH |
4972 | event.kind = buffer_switch_event; |
4973 | event.frame_or_window = Qnil; | |
241ceaf7 | 4974 | |
f65e6f7d | 4975 | #ifdef subprocesses |
a30f0615 RS |
4976 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
4977 | The purpose of the event is to make read_key_sequence look up the | |
4978 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
4979 | and the event could cause trouble by messing up (input-pending-p). */ | |
4980 | tem = Fwaiting_for_user_input_p (); | |
4981 | if (NILP (tem)) | |
4982 | return; | |
f65e6f7d RS |
4983 | #else |
4984 | /* We never need these events if we have no asynchronous subprocesses. */ | |
4985 | return; | |
4986 | #endif | |
a30f0615 | 4987 | |
241ceaf7 RS |
4988 | /* Make sure no interrupt happens while storing the event. */ |
4989 | #ifdef SIGIO | |
4990 | if (interrupt_input) | |
4991 | { | |
4992 | SIGMASKTYPE mask; | |
4f8aaa74 | 4993 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
4994 | kbd_buffer_store_event (&event); |
4995 | sigsetmask (mask); | |
4996 | } | |
4997 | else | |
4998 | #endif | |
4999 | { | |
5000 | stop_polling (); | |
5001 | kbd_buffer_store_event (&event); | |
5002 | start_polling (); | |
5003 | } | |
a8015ab5 | 5004 | } |
284f4730 JB |
5005 | \f |
5006 | #ifndef VMS | |
5007 | ||
5008 | /* Read any terminal input already buffered up by the system | |
5009 | into the kbd_buffer, but do not wait. | |
5010 | ||
5011 | EXPECTED should be nonzero if the caller knows there is some input. | |
5012 | ||
5013 | Except on VMS, all input is read by this function. | |
5014 | If interrupt_input is nonzero, this function MUST be called | |
5015 | only when SIGIO is blocked. | |
5016 | ||
5017 | Returns the number of keyboard chars read, or -1 meaning | |
5018 | this is a bad time to try to read input. */ | |
5019 | ||
5020 | static int | |
5021 | read_avail_input (expected) | |
5022 | int expected; | |
5023 | { | |
5024 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5025 | register int i; | |
5026 | int nread; | |
5027 | ||
5028 | if (read_socket_hook) | |
5029 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5030 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5031 | else |
5032 | { | |
17270835 RS |
5033 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5034 | the kbd_buffer can really hold. That may prevent loss | |
5035 | of characters on some systems when input is stuffed at us. */ | |
5036 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5037 | int n_to_read; |
284f4730 | 5038 | |
58788063 | 5039 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5040 | #ifdef WINDOWSNT |
5041 | return 0; | |
5042 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5043 | #ifdef MSDOS |
58788063 RS |
5044 | n_to_read = dos_keysns (); |
5045 | if (n_to_read == 0) | |
5046 | return 0; | |
c3a2738c | 5047 | #else /* not MSDOS */ |
284f4730 JB |
5048 | #ifdef FIONREAD |
5049 | /* Find out how much input is available. */ | |
437f6112 | 5050 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5051 | /* Formerly simply reported no input, but that sometimes led to |
5052 | a failure of Emacs to terminate. | |
5053 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5054 | /* ??? Is it really right to send the signal just to this process |
5055 | rather than to the whole process group? | |
5056 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5057 | kill (getpid (), SIGHUP); |
58788063 | 5058 | if (n_to_read == 0) |
284f4730 | 5059 | return 0; |
58788063 RS |
5060 | if (n_to_read > sizeof cbuf) |
5061 | n_to_read = sizeof cbuf; | |
284f4730 | 5062 | #else /* no FIONREAD */ |
0c04a67e | 5063 | #if defined (USG) || defined (DGUX) |
284f4730 | 5064 | /* Read some input if available, but don't wait. */ |
58788063 | 5065 | n_to_read = sizeof cbuf; |
437f6112 | 5066 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5067 | #else |
5068 | you lose; | |
5069 | #endif | |
5070 | #endif | |
80e4aa30 | 5071 | #endif /* not MSDOS */ |
bc536d84 | 5072 | #endif /* not WINDOWSNT */ |
284f4730 | 5073 | |
58788063 RS |
5074 | /* Now read; for one reason or another, this will not block. |
5075 | NREAD is set to the number of chars read. */ | |
9134775b | 5076 | do |
284f4730 | 5077 | { |
80e4aa30 | 5078 | #ifdef MSDOS |
0c04a67e | 5079 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5080 | nread = 1; |
5081 | #else | |
437f6112 | 5082 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5083 | #endif |
49854566 RS |
5084 | /* POSIX infers that processes which are not in the session leader's |
5085 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
5086 | this part standard and returns -1 from read(0) with errno==EIO | |
5087 | when the control tty is taken away. | |
5088 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5089 | if (nread == -1 && errno == EIO) | |
5090 | kill (0, SIGHUP); | |
762f2b92 | 5091 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5092 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5093 | This looks incorrect, but it isn't, because _BSD causes | |
5094 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5095 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5096 | if (nread == 0) |
80e4aa30 | 5097 | kill (0, SIGHUP); |
284f4730 | 5098 | #endif |
9134775b | 5099 | } |
791587ee KH |
5100 | while ( |
5101 | /* We used to retry the read if it was interrupted. | |
5102 | But this does the wrong thing when O_NDELAY causes | |
5103 | an EAGAIN error. Does anybody know of a situation | |
5104 | where a retry is actually needed? */ | |
5105 | #if 0 | |
5106 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5107 | #ifdef EFAULT |
9134775b | 5108 | || errno == EFAULT |
80e4aa30 | 5109 | #endif |
284f4730 | 5110 | #ifdef EBADSLT |
9134775b | 5111 | || errno == EBADSLT |
284f4730 | 5112 | #endif |
791587ee KH |
5113 | ) |
5114 | #else | |
5115 | 0 | |
5116 | #endif | |
5117 | ); | |
284f4730 JB |
5118 | |
5119 | #ifndef FIONREAD | |
02c2c53f | 5120 | #if defined (USG) || defined (DGUX) |
437f6112 | 5121 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5122 | #endif /* USG or DGUX */ |
284f4730 JB |
5123 | #endif /* no FIONREAD */ |
5124 | for (i = 0; i < nread; i++) | |
5125 | { | |
5126 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5127 | buf[i].modifiers = 0; |
b04904fb | 5128 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5129 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5130 | if (meta_key != 2) |
5131 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5132 | |
5133 | buf[i].code = cbuf[i]; | |
18cd2eeb | 5134 | XSETFRAME (buf[i].frame_or_window, selected_frame); |
284f4730 JB |
5135 | } |
5136 | } | |
5137 | ||
5138 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5139 | for (i = 0; i < nread; i++) | |
5140 | { | |
5141 | kbd_buffer_store_event (&buf[i]); | |
5142 | /* Don't look at input that follows a C-g too closely. | |
5143 | This reduces lossage due to autorepeat on C-g. */ | |
5144 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5145 | && buf[i].code == quit_char) |
284f4730 JB |
5146 | break; |
5147 | } | |
5148 | ||
5149 | return nread; | |
5150 | } | |
5151 | #endif /* not VMS */ | |
5152 | \f | |
5153 | #ifdef SIGIO /* for entire page */ | |
5154 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5155 | ||
2ce30ea2 | 5156 | SIGTYPE |
284f4730 JB |
5157 | input_available_signal (signo) |
5158 | int signo; | |
5159 | { | |
5160 | /* Must preserve main program's value of errno. */ | |
5161 | int old_errno = errno; | |
5162 | #ifdef BSD4_1 | |
5163 | extern int select_alarmed; | |
5164 | #endif | |
5165 | ||
5970a8cb | 5166 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5167 | /* USG systems forget handlers when they are used; |
5168 | must reestablish each time */ | |
5169 | signal (signo, input_available_signal); | |
5170 | #endif /* USG */ | |
5171 | ||
5172 | #ifdef BSD4_1 | |
5173 | sigisheld (SIGIO); | |
5174 | #endif | |
5175 | ||
ffd56f97 JB |
5176 | if (input_available_clear_time) |
5177 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5178 | |
5179 | while (1) | |
5180 | { | |
5181 | int nread; | |
5182 | nread = read_avail_input (1); | |
5183 | /* -1 means it's not ok to read the input now. | |
5184 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5185 | 0 means there was no keyboard input available. */ | |
5186 | if (nread <= 0) | |
5187 | break; | |
5188 | ||
5189 | #ifdef BSD4_1 | |
5190 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5191 | #endif | |
5192 | } | |
5193 | ||
5194 | #ifdef BSD4_1 | |
5195 | sigfree (); | |
5196 | #endif | |
5197 | errno = old_errno; | |
5198 | } | |
5199 | #endif /* SIGIO */ | |
ad163903 JB |
5200 | |
5201 | /* Send ourselves a SIGIO. | |
5202 | ||
5203 | This function exists so that the UNBLOCK_INPUT macro in | |
5204 | blockinput.h can have some way to take care of input we put off | |
5205 | dealing with, without assuming that every file which uses | |
5206 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5207 | void | |
5208 | reinvoke_input_signal () | |
5209 | { | |
df0f2ba1 | 5210 | #ifdef SIGIO |
87dd9b9b | 5211 | kill (getpid (), SIGIO); |
ad163903 JB |
5212 | #endif |
5213 | } | |
5214 | ||
5215 | ||
284f4730 JB |
5216 | \f |
5217 | /* Return the prompt-string of a sparse keymap. | |
5218 | This is the first element which is a string. | |
5219 | Return nil if there is none. */ | |
5220 | ||
5221 | Lisp_Object | |
5222 | map_prompt (map) | |
5223 | Lisp_Object map; | |
5224 | { | |
5225 | while (CONSP (map)) | |
5226 | { | |
5227 | register Lisp_Object tem; | |
5228 | tem = Fcar (map); | |
8c18cbfb | 5229 | if (STRINGP (tem)) |
284f4730 JB |
5230 | return tem; |
5231 | map = Fcdr (map); | |
5232 | } | |
5233 | return Qnil; | |
5234 | } | |
5235 | ||
b7c49376 RS |
5236 | static void menu_bar_item (); |
5237 | static void menu_bar_one_keymap (); | |
5238 | ||
5239 | /* These variables hold the vector under construction within | |
5240 | menu_bar_items and its subroutines, and the current index | |
5241 | for storing into that vector. */ | |
5242 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5243 | static int menu_bar_items_index; |
5ec75a55 | 5244 | |
b7c49376 RS |
5245 | /* Return a vector of menu items for a menu bar, appropriate |
5246 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5247 | KEY STRING MAPLIST. |
b7c49376 RS |
5248 | |
5249 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5250 | |
5251 | Lisp_Object | |
b7c49376 RS |
5252 | menu_bar_items (old) |
5253 | Lisp_Object old; | |
5ec75a55 RS |
5254 | { |
5255 | /* The number of keymaps we're scanning right now, and the number of | |
5256 | keymaps we have allocated space for. */ | |
5257 | int nmaps; | |
5258 | ||
5259 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5260 | in the current keymaps, or nil where it is not a prefix. */ | |
5261 | Lisp_Object *maps; | |
5262 | ||
9f9c0e27 | 5263 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5264 | |
5265 | Lisp_Object result; | |
5266 | ||
5267 | int mapno; | |
47d319aa | 5268 | Lisp_Object oquit; |
5ec75a55 | 5269 | |
b7c49376 RS |
5270 | int i; |
5271 | ||
5272 | struct gcpro gcpro1; | |
5273 | ||
db60d856 JB |
5274 | /* In order to build the menus, we need to call the keymap |
5275 | accessors. They all call QUIT. But this function is called | |
5276 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5277 | quitting while building the menus. |
5278 | We do this instead of specbind because (1) errors will clear it anyway | |
5279 | and (2) this avoids risk of specpdl overflow. */ | |
5280 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5281 | Vinhibit_quit = Qt; |
db60d856 | 5282 | |
b7c49376 RS |
5283 | if (!NILP (old)) |
5284 | menu_bar_items_vector = old; | |
5285 | else | |
5286 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5287 | menu_bar_items_index = 0; | |
5288 | ||
5289 | GCPRO1 (menu_bar_items_vector); | |
5290 | ||
5ec75a55 RS |
5291 | /* Build our list of keymaps. |
5292 | If we recognize a function key and replace its escape sequence in | |
5293 | keybuf with its symbol, or if the sequence starts with a mouse | |
5294 | click and we need to switch buffers, we jump back here to rebuild | |
5295 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5296 | { |
5ec75a55 RS |
5297 | Lisp_Object *tmaps; |
5298 | ||
217258d5 | 5299 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5300 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5301 | { |
217258d5 KH |
5302 | /* Yes, use them (if non-nil) as well as the global map. */ |
5303 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5304 | nmaps = 0; | |
5305 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5306 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5307 | if (!NILP (Voverriding_local_map)) | |
5308 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5309 | } |
5310 | else | |
5311 | { | |
d0a49716 | 5312 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5313 | nmaps = current_minor_maps (NULL, &tmaps); |
5314 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5315 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 5316 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5317 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 5318 | #else |
217258d5 | 5319 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 5320 | #endif |
9dd3131c | 5321 | } |
217258d5 | 5322 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5323 | } |
5324 | ||
5325 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5326 | ||
5327 | result = Qnil; | |
5328 | ||
e58aa385 | 5329 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5330 | { |
5331 | if (! NILP (maps[mapno])) | |
c6a67acd | 5332 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5333 | else |
5334 | def = Qnil; | |
5335 | ||
5336 | tem = Fkeymapp (def); | |
5337 | if (!NILP (tem)) | |
b7c49376 | 5338 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5339 | } |
5340 | ||
b7c49376 RS |
5341 | /* Move to the end those items that should be at the end. */ |
5342 | ||
9f9c0e27 RS |
5343 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
5344 | { | |
b7c49376 RS |
5345 | int i; |
5346 | int end = menu_bar_items_index; | |
5347 | ||
35b3402f | 5348 | for (i = 0; i < end; i += 4) |
b7c49376 RS |
5349 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) |
5350 | { | |
35b3402f | 5351 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5352 | /* Move the item at index I to the end, |
5353 | shifting all the others forward. */ | |
5354 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5355 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5356 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5357 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5358 | if (end > i + 4) | |
5359 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5360 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5361 | (end - i - 4) * sizeof (Lisp_Object)); |
5362 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5363 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5364 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5365 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5366 | break; |
b7c49376 RS |
5367 | } |
5368 | } | |
9f9c0e27 | 5369 | |
0c9071cd | 5370 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5371 | i = menu_bar_items_index; |
35b3402f | 5372 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5373 | { |
5374 | Lisp_Object tem; | |
5375 | int newsize = 2 * i; | |
5376 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5377 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5378 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5379 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5380 | } |
b7c49376 RS |
5381 | /* Add this item. */ |
5382 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5383 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5384 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5385 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5386 | menu_bar_items_index = i; |
a73c5e29 | 5387 | |
47d319aa | 5388 | Vinhibit_quit = oquit; |
b7c49376 RS |
5389 | UNGCPRO; |
5390 | return menu_bar_items_vector; | |
5ec75a55 RS |
5391 | } |
5392 | \f | |
5393 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5394 | in menu_bar_items_vector. */ |
5ec75a55 | 5395 | |
b7c49376 RS |
5396 | static void |
5397 | menu_bar_one_keymap (keymap) | |
5398 | Lisp_Object keymap; | |
5ec75a55 RS |
5399 | { |
5400 | Lisp_Object tail, item, key, binding, item_string, table; | |
5401 | ||
5402 | /* Loop over all keymap entries that have menu strings. */ | |
8c18cbfb | 5403 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
5404 | { |
5405 | item = XCONS (tail)->car; | |
8c18cbfb | 5406 | if (CONSP (item)) |
5ec75a55 RS |
5407 | { |
5408 | key = XCONS (item)->car; | |
5409 | binding = XCONS (item)->cdr; | |
8c18cbfb | 5410 | if (CONSP (binding)) |
5ec75a55 RS |
5411 | { |
5412 | item_string = XCONS (binding)->car; | |
8c18cbfb | 5413 | if (STRINGP (item_string)) |
b7c49376 | 5414 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 5415 | } |
e58aa385 | 5416 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 5417 | menu_bar_item (key, Qnil, binding); |
5ec75a55 | 5418 | } |
8c18cbfb | 5419 | else if (VECTORP (item)) |
5ec75a55 RS |
5420 | { |
5421 | /* Loop over the char values represented in the vector. */ | |
5422 | int len = XVECTOR (item)->size; | |
5423 | int c; | |
5424 | for (c = 0; c < len; c++) | |
5425 | { | |
5426 | Lisp_Object character; | |
bb9e9bed | 5427 | XSETFASTINT (character, c); |
5ec75a55 | 5428 | binding = XVECTOR (item)->contents[c]; |
8c18cbfb | 5429 | if (CONSP (binding)) |
5ec75a55 RS |
5430 | { |
5431 | item_string = XCONS (binding)->car; | |
8c18cbfb | 5432 | if (STRINGP (item_string)) |
b7c49376 | 5433 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 5434 | } |
e58aa385 | 5435 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 5436 | menu_bar_item (key, Qnil, binding); |
5ec75a55 RS |
5437 | } |
5438 | } | |
5439 | } | |
5ec75a55 RS |
5440 | } |
5441 | ||
047a8ea7 RS |
5442 | /* This is used as the handler when calling internal_condition_case_1. */ |
5443 | ||
5444 | static Lisp_Object | |
5445 | menu_bar_item_1 (arg) | |
5446 | Lisp_Object arg; | |
5447 | { | |
5448 | return Qnil; | |
5449 | } | |
5450 | ||
f5e09c8b RS |
5451 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5452 | If there's already an item for KEY, add this DEF to it. */ | |
5453 | ||
b7c49376 RS |
5454 | static void |
5455 | menu_bar_item (key, item_string, def) | |
5456 | Lisp_Object key, item_string, def; | |
5ec75a55 | 5457 | { |
e58aa385 | 5458 | Lisp_Object tem; |
5ec75a55 | 5459 | Lisp_Object enabled; |
b7c49376 | 5460 | int i; |
5ec75a55 | 5461 | |
210df3bf KH |
5462 | /* Skip menu-bar equiv keys data. */ |
5463 | if (CONSP (def) && CONSP (XCONS (def)->car)) | |
5464 | def = XCONS (def)->cdr; | |
5465 | ||
e58aa385 RS |
5466 | if (EQ (def, Qundefined)) |
5467 | { | |
f5e09c8b | 5468 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 5469 | discard any previously made menu bar item. */ |
b7c49376 | 5470 | |
35b3402f | 5471 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5472 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5473 | { | |
35b3402f RS |
5474 | if (menu_bar_items_index > i + 4) |
5475 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 5476 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5477 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
5478 | menu_bar_items_index -= 4; | |
b7c49376 RS |
5479 | return; |
5480 | } | |
8aa034e1 RS |
5481 | |
5482 | /* If there's no definition for this key yet, | |
5483 | just ignore `undefined'. */ | |
5484 | return; | |
e58aa385 RS |
5485 | } |
5486 | ||
5ec75a55 RS |
5487 | /* See if this entry is enabled. */ |
5488 | enabled = Qt; | |
5489 | ||
8c18cbfb | 5490 | if (SYMBOLP (def)) |
5ec75a55 RS |
5491 | { |
5492 | /* No property, or nil, means enable. | |
5493 | Otherwise, enable if value is not nil. */ | |
5494 | tem = Fget (def, Qmenu_enable); | |
5495 | if (!NILP (tem)) | |
047a8ea7 RS |
5496 | /* (condition-case nil (eval tem) |
5497 | (error nil)) */ | |
5498 | enabled = internal_condition_case_1 (Feval, tem, Qerror, | |
5499 | menu_bar_item_1); | |
5ec75a55 RS |
5500 | } |
5501 | ||
b7c49376 RS |
5502 | /* Ignore this item if it's not enabled. */ |
5503 | if (NILP (enabled)) | |
5504 | return; | |
5ec75a55 | 5505 | |
f5e09c8b | 5506 | /* Find any existing item for this KEY. */ |
35b3402f | 5507 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5508 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5509 | break; | |
5510 | ||
f5e09c8b | 5511 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
5512 | if (i == menu_bar_items_index) |
5513 | { | |
5514 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 5515 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5516 | { |
5517 | Lisp_Object tem; | |
5518 | int newsize = 2 * i; | |
5519 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5520 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5521 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5522 | menu_bar_items_vector = tem; | |
5523 | } | |
5524 | /* Add this item. */ | |
5525 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
5526 | XVECTOR (menu_bar_items_vector)->contents[i++] = item_string; | |
f5e09c8b | 5527 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (def, Qnil); |
35b3402f | 5528 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
5529 | menu_bar_items_index = i; |
5530 | } | |
f5e09c8b RS |
5531 | /* We did find an item for this KEY. Add DEF to its list of maps. */ |
5532 | else | |
5533 | { | |
5534 | Lisp_Object old; | |
5535 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
5536 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (def, old); | |
5537 | } | |
5ec75a55 RS |
5538 | } |
5539 | \f | |
dcc408a0 RS |
5540 | /* Read a character using menus based on maps in the array MAPS. |
5541 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
5542 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
5543 | |
5544 | PREV_EVENT is the previous input event, or nil if we are reading | |
5545 | the first event of a key sequence. | |
5546 | ||
83d68044 | 5547 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 5548 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 5549 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
5550 | |
5551 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 5552 | and the strings associated with various map elements. |
8150596a RS |
5553 | |
5554 | This can be done with X menus or with menus put in the minibuf. | |
5555 | These are done in different ways, depending on how the input will be read. | |
5556 | Menus using X are done after auto-saving in read-char, getting the input | |
5557 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
5558 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 5559 | |
7617111f | 5560 | static Lisp_Object |
8150596a | 5561 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
5562 | int nmaps; |
5563 | Lisp_Object *maps; | |
5564 | Lisp_Object prev_event; | |
5565 | int *used_mouse_menu; | |
284f4730 | 5566 | { |
7d6de002 RS |
5567 | int mapno; |
5568 | register Lisp_Object name; | |
7d6de002 RS |
5569 | Lisp_Object rest, vector; |
5570 | ||
6569cc8d JB |
5571 | if (used_mouse_menu) |
5572 | *used_mouse_menu = 0; | |
284f4730 JB |
5573 | |
5574 | /* Use local over global Menu maps */ | |
5575 | ||
7d6de002 RS |
5576 | if (! menu_prompting) |
5577 | return Qnil; | |
5578 | ||
03361bcc RS |
5579 | /* Optionally disregard all but the global map. */ |
5580 | if (inhibit_local_menu_bar_menus) | |
5581 | { | |
5582 | maps += (nmaps - 1); | |
5583 | nmaps = 1; | |
5584 | } | |
5585 | ||
7d6de002 RS |
5586 | /* Get the menu name from the first map that has one (a prompt string). */ |
5587 | for (mapno = 0; mapno < nmaps; mapno++) | |
5588 | { | |
5589 | name = map_prompt (maps[mapno]); | |
5590 | if (!NILP (name)) | |
5591 | break; | |
5592 | } | |
284f4730 | 5593 | |
7d6de002 | 5594 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 5595 | if (mapno >= nmaps) |
7d6de002 RS |
5596 | return Qnil; |
5597 | ||
1f5b1641 | 5598 | #ifdef HAVE_MENUS |
7d6de002 RS |
5599 | /* If we got to this point via a mouse click, |
5600 | use a real menu for mouse selection. */ | |
5a8d99e0 KH |
5601 | if (EVENT_HAS_PARAMETERS (prev_event) |
5602 | && !EQ (XCONS (prev_event)->car, Qmenu_bar)) | |
7d6de002 RS |
5603 | { |
5604 | /* Display the menu and get the selection. */ | |
5605 | Lisp_Object *realmaps | |
5606 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
5607 | Lisp_Object value; | |
5608 | int nmaps1 = 0; | |
5609 | ||
5610 | /* Use the maps that are not nil. */ | |
5611 | for (mapno = 0; mapno < nmaps; mapno++) | |
5612 | if (!NILP (maps[mapno])) | |
5613 | realmaps[nmaps1++] = maps[mapno]; | |
5614 | ||
5615 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
5616 | if (CONSP (value)) |
5617 | { | |
68f297c5 RS |
5618 | Lisp_Object tem; |
5619 | ||
8eb4d8ef RS |
5620 | record_menu_key (XCONS (value)->car); |
5621 | ||
68f297c5 RS |
5622 | /* If we got multiple events, unread all but |
5623 | the first. | |
5624 | There is no way to prevent those unread events | |
5625 | from showing up later in last_nonmenu_event. | |
5626 | So turn symbol and integer events into lists, | |
5627 | to indicate that they came from a mouse menu, | |
5628 | so that when present in last_nonmenu_event | |
5629 | they won't confuse things. */ | |
5630 | for (tem = XCONS (value)->cdr; !NILP (tem); | |
5631 | tem = XCONS (tem)->cdr) | |
8eb4d8ef RS |
5632 | { |
5633 | record_menu_key (XCONS (tem)->car); | |
5634 | if (SYMBOLP (XCONS (tem)->car) | |
5635 | || INTEGERP (XCONS (tem)->car)) | |
5636 | XCONS (tem)->car | |
5637 | = Fcons (XCONS (tem)->car, Qnil); | |
5638 | } | |
68f297c5 | 5639 | |
663258f2 JB |
5640 | /* If we got more than one event, put all but the first |
5641 | onto this list to be read later. | |
5642 | Return just the first event now. */ | |
24597608 RS |
5643 | Vunread_command_events |
5644 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
5645 | value = XCONS (value)->car; |
5646 | } | |
1c90c381 | 5647 | else if (NILP (value)) |
dcc408a0 | 5648 | value = Qt; |
6569cc8d JB |
5649 | if (used_mouse_menu) |
5650 | *used_mouse_menu = 1; | |
7d6de002 RS |
5651 | return value; |
5652 | } | |
1f5b1641 | 5653 | #endif /* HAVE_MENUS */ |
8150596a RS |
5654 | return Qnil ; |
5655 | } | |
5656 | ||
68e0de82 RS |
5657 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
5658 | We make this bigger when necessary, and never free it. */ | |
5659 | static char *read_char_minibuf_menu_text; | |
5660 | /* Size of that buffer. */ | |
5661 | static int read_char_minibuf_menu_width; | |
5662 | ||
8150596a | 5663 | static Lisp_Object |
24597608 | 5664 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
5665 | int commandflag ; |
5666 | int nmaps; | |
5667 | Lisp_Object *maps; | |
5668 | { | |
5669 | int mapno; | |
5670 | register Lisp_Object name; | |
5671 | int nlength; | |
5672 | int width = FRAME_WIDTH (selected_frame) - 4; | |
8150596a | 5673 | int idx = -1; |
9fdbfdf8 | 5674 | int nobindings = 1; |
8150596a | 5675 | Lisp_Object rest, vector; |
68e0de82 | 5676 | char *menu; |
8150596a RS |
5677 | |
5678 | if (! menu_prompting) | |
5679 | return Qnil; | |
5680 | ||
68e0de82 RS |
5681 | /* Make sure we have a big enough buffer for the menu text. */ |
5682 | if (read_char_minibuf_menu_text == 0) | |
5683 | { | |
5684 | read_char_minibuf_menu_width = width + 4; | |
5685 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
5686 | } | |
5687 | else if (width + 4 > read_char_minibuf_menu_width) | |
5688 | { | |
5689 | read_char_minibuf_menu_width = width + 4; | |
5690 | read_char_minibuf_menu_text | |
5691 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
5692 | } | |
5693 | menu = read_char_minibuf_menu_text; | |
5694 | ||
8150596a RS |
5695 | /* Get the menu name from the first map that has one (a prompt string). */ |
5696 | for (mapno = 0; mapno < nmaps; mapno++) | |
5697 | { | |
5698 | name = map_prompt (maps[mapno]); | |
5699 | if (!NILP (name)) | |
5700 | break; | |
5701 | } | |
5702 | ||
5703 | /* If we don't have any menus, just read a character normally. */ | |
5704 | if (mapno >= nmaps) | |
5705 | return Qnil; | |
284f4730 JB |
5706 | |
5707 | /* Prompt string always starts with map's prompt, and a space. */ | |
5708 | strcpy (menu, XSTRING (name)->data); | |
301738ed | 5709 | nlength = XSTRING (name)->size_byte; |
7d6de002 | 5710 | menu[nlength++] = ':'; |
284f4730 JB |
5711 | menu[nlength++] = ' '; |
5712 | menu[nlength] = 0; | |
5713 | ||
7d6de002 RS |
5714 | /* Start prompting at start of first map. */ |
5715 | mapno = 0; | |
5716 | rest = maps[mapno]; | |
284f4730 JB |
5717 | |
5718 | /* Present the documented bindings, a line at a time. */ | |
5719 | while (1) | |
5720 | { | |
5721 | int notfirst = 0; | |
5722 | int i = nlength; | |
5723 | Lisp_Object obj; | |
5724 | int ch; | |
8066f1a1 | 5725 | Lisp_Object orig_defn_macro; |
284f4730 | 5726 | |
284f4730 | 5727 | /* Loop over elements of map. */ |
7d6de002 | 5728 | while (i < width) |
284f4730 | 5729 | { |
7d6de002 | 5730 | Lisp_Object s, elt; |
284f4730 | 5731 | |
7d6de002 RS |
5732 | /* If reached end of map, start at beginning of next map. */ |
5733 | if (NILP (rest)) | |
5734 | { | |
5735 | mapno++; | |
5736 | /* At end of last map, wrap around to first map if just starting, | |
5737 | or end this line if already have something on it. */ | |
5738 | if (mapno == nmaps) | |
284f4730 | 5739 | { |
8150596a | 5740 | mapno = 0; |
40932d1a | 5741 | if (notfirst || nobindings) break; |
284f4730 | 5742 | } |
7d6de002 | 5743 | rest = maps[mapno]; |
284f4730 | 5744 | } |
7d6de002 RS |
5745 | |
5746 | /* Look at the next element of the map. */ | |
5747 | if (idx >= 0) | |
5748 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 5749 | else |
7d6de002 RS |
5750 | elt = Fcar_safe (rest); |
5751 | ||
8c18cbfb | 5752 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 5753 | { |
7d6de002 RS |
5754 | /* If we found a dense table in the keymap, |
5755 | advanced past it, but start scanning its contents. */ | |
5756 | rest = Fcdr_safe (rest); | |
5757 | vector = elt; | |
5758 | idx = 0; | |
284f4730 | 5759 | } |
7d6de002 RS |
5760 | else |
5761 | { | |
5762 | /* An ordinary element. */ | |
0a2ea221 KH |
5763 | Lisp_Object event; |
5764 | ||
5765 | if (idx < 0) | |
5766 | { | |
5767 | s = Fcar_safe (Fcdr_safe (elt)); /* alist */ | |
5768 | event = Fcar_safe (elt); | |
5769 | } | |
8150596a | 5770 | else |
7d6de002 | 5771 | { |
0a2ea221 KH |
5772 | s = Fcar_safe (elt); /* vector */ |
5773 | XSETINT (event, idx); | |
5774 | } | |
5775 | ||
5776 | /* Ignore the element if it has no prompt string. */ | |
5777 | if (STRINGP (s) && INTEGERP (event)) | |
5778 | { | |
5779 | /* 1 if the char to type matches the string. */ | |
5780 | int char_matches; | |
5781 | Lisp_Object upcased_event, downcased_event; | |
5782 | Lisp_Object desc; | |
5783 | ||
5784 | upcased_event = Fupcase (event); | |
5785 | downcased_event = Fdowncase (event); | |
5786 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
5787 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
5788 | if (! char_matches) | |
5789 | desc = Fsingle_key_description (event); | |
5790 | ||
5791 | /* If we have room for the prompt string, add it to this line. | |
5792 | If this is the first on the line, always add it. */ | |
5793 | if ((XSTRING (s)->size + i + 2 | |
5794 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
5795 | < width | |
5796 | || !notfirst) | |
5797 | { | |
5798 | int thiswidth; | |
5799 | ||
5800 | /* Punctuate between strings. */ | |
5801 | if (notfirst) | |
5802 | { | |
5803 | strcpy (menu + i, ", "); | |
5804 | i += 2; | |
5805 | } | |
5806 | notfirst = 1; | |
5807 | nobindings = 0 ; | |
284f4730 | 5808 | |
0a2ea221 KH |
5809 | /* If the char to type doesn't match the string's |
5810 | first char, explicitly show what char to type. */ | |
5811 | if (! char_matches) | |
5812 | { | |
5813 | /* Add as much of string as fits. */ | |
5814 | thiswidth = XSTRING (desc)->size; | |
5815 | if (thiswidth + i > width) | |
5816 | thiswidth = width - i; | |
5817 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
5818 | i += thiswidth; | |
5819 | strcpy (menu + i, " = "); | |
5820 | i += 3; | |
5821 | } | |
5822 | ||
5823 | /* Add as much of string as fits. */ | |
5824 | thiswidth = XSTRING (s)->size; | |
5825 | if (thiswidth + i > width) | |
5826 | thiswidth = width - i; | |
5827 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
5828 | i += thiswidth; | |
5829 | menu[i] = 0; | |
5830 | } | |
5831 | else | |
7d6de002 | 5832 | { |
0a2ea221 KH |
5833 | /* If this element does not fit, end the line now, |
5834 | and save the element for the next line. */ | |
5835 | strcpy (menu + i, "..."); | |
5836 | break; | |
7d6de002 | 5837 | } |
7d6de002 RS |
5838 | } |
5839 | ||
5840 | /* Move past this element. */ | |
8150596a | 5841 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
5842 | /* Handle reaching end of dense table. */ |
5843 | idx = -1; | |
5844 | if (idx >= 0) | |
5845 | idx++; | |
5846 | else | |
5847 | rest = Fcdr_safe (rest); | |
5848 | } | |
284f4730 JB |
5849 | } |
5850 | ||
5851 | /* Prompt with that and read response. */ | |
301738ed RS |
5852 | message2_nolog (menu, strlen (menu), |
5853 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 5854 | |
df0f2ba1 | 5855 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
5856 | is pressed. Help characters are not recorded because menu prompting |
5857 | is not used on replay. | |
5858 | */ | |
c5fdd383 KH |
5859 | orig_defn_macro = current_kboard->defining_kbd_macro; |
5860 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
5861 | do |
5862 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 5863 | while (BUFFERP (obj)); |
c5fdd383 | 5864 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 5865 | |
8c18cbfb | 5866 | if (!INTEGERP (obj)) |
284f4730 JB |
5867 | return obj; |
5868 | else | |
5869 | ch = XINT (obj); | |
5870 | ||
f4255cd1 | 5871 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 5872 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 5873 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 5874 | { |
c5fdd383 | 5875 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 5876 | store_kbd_macro_char (obj); |
8150596a RS |
5877 | return obj; |
5878 | } | |
5879 | /* Help char - go round again */ | |
284f4730 JB |
5880 | } |
5881 | } | |
284f4730 JB |
5882 | \f |
5883 | /* Reading key sequences. */ | |
5884 | ||
5885 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
5886 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
5887 | keymap, or nil otherwise. Return the index of the first keymap in | |
5888 | which KEY has any binding, or NMAPS if no map has a binding. | |
5889 | ||
5890 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
5891 | followed by the corresponding non-meta character. Keymaps in | |
5892 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
5893 | NEXT. | |
5894 | ||
88cb0656 JB |
5895 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
5896 | unmodified. | |
5897 | ||
569871d2 | 5898 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
5899 | |
5900 | static int | |
4e50f26a | 5901 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
5902 | Lisp_Object key; |
5903 | Lisp_Object *current, *defs, *next; | |
5904 | int nmaps; | |
5905 | { | |
5906 | int i, first_binding; | |
569871d2 | 5907 | int did_meta = 0; |
284f4730 JB |
5908 | |
5909 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
5910 | followed by the corresponding non-meta character. |
5911 | Put the results into DEFS, since we are going to alter that anyway. | |
5912 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 5913 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
5914 | { |
5915 | for (i = 0; i < nmaps; i++) | |
5916 | if (! NILP (current[i])) | |
5917 | { | |
569871d2 RS |
5918 | Lisp_Object def; |
5919 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 5920 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
5921 | |
5922 | /* Note that since we pass the resulting bindings through | |
5923 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
5924 | disappear. */ | |
569871d2 | 5925 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
5926 | } |
5927 | else | |
569871d2 | 5928 | defs[i] = Qnil; |
284f4730 | 5929 | |
569871d2 | 5930 | did_meta = 1; |
18cd2eeb | 5931 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
5932 | } |
5933 | ||
5934 | first_binding = nmaps; | |
5935 | for (i = nmaps - 1; i >= 0; i--) | |
5936 | { | |
5937 | if (! NILP (current[i])) | |
5938 | { | |
569871d2 RS |
5939 | Lisp_Object map; |
5940 | if (did_meta) | |
5941 | map = defs[i]; | |
5942 | else | |
5943 | map = current[i]; | |
5944 | ||
c6a67acd | 5945 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
5946 | if (! NILP (defs[i])) |
5947 | first_binding = i; | |
5948 | } | |
5949 | else | |
5950 | defs[i] = Qnil; | |
5951 | } | |
5952 | ||
284f4730 | 5953 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
5954 | if (first_binding < nmaps) |
5955 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 5956 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
5957 | |
5958 | return first_binding; | |
5959 | } | |
5960 | ||
df0f2ba1 | 5961 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
5962 | storing it in KEYBUF, a buffer of size BUFSIZE. |
5963 | Prompt with PROMPT. | |
284f4730 | 5964 | Return the length of the key sequence stored. |
dcc408a0 | 5965 | Return -1 if the user rejected a command menu. |
284f4730 | 5966 | |
f4255cd1 JB |
5967 | Echo starting immediately unless `prompt' is 0. |
5968 | ||
5969 | Where a key sequence ends depends on the currently active keymaps. | |
5970 | These include any minor mode keymaps active in the current buffer, | |
5971 | the current buffer's local map, and the global map. | |
5972 | ||
5973 | If a key sequence has no other bindings, we check Vfunction_key_map | |
5974 | to see if some trailing subsequence might be the beginning of a | |
5975 | function key's sequence. If so, we try to read the whole function | |
5976 | key, and substitute its symbolic name into the key sequence. | |
5977 | ||
fbcd35bd JB |
5978 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
5979 | `double-' events into similar click events, if that would make them | |
5980 | bound. We try to turn `triple-' events first into `double-' events, | |
5981 | then into clicks. | |
f4255cd1 JB |
5982 | |
5983 | If we get a mouse click in a mode line, vertical divider, or other | |
5984 | non-text area, we treat the click as if it were prefixed by the | |
5985 | symbol denoting that area - `mode-line', `vertical-line', or | |
5986 | whatever. | |
5987 | ||
5988 | If the sequence starts with a mouse click, we read the key sequence | |
5989 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 5990 | |
f4255cd1 JB |
5991 | If the user switches frames in the midst of a key sequence, we put |
5992 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
5993 | read_char will return it. |
5994 | ||
5995 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
5996 | from the selected window's buffer. */ | |
48e416d4 | 5997 | |
284f4730 | 5998 | static int |
ce98e608 | 5999 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 6000 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
6001 | Lisp_Object *keybuf; |
6002 | int bufsize; | |
84d91fda | 6003 | Lisp_Object prompt; |
309b0fc8 | 6004 | int dont_downcase_last; |
ce98e608 | 6005 | int can_return_switch_frame; |
f571ae0d | 6006 | int fix_current_buffer; |
284f4730 | 6007 | { |
f4255cd1 JB |
6008 | int count = specpdl_ptr - specpdl; |
6009 | ||
284f4730 JB |
6010 | /* How many keys there are in the current key sequence. */ |
6011 | int t; | |
6012 | ||
284f4730 JB |
6013 | /* The length of the echo buffer when we started reading, and |
6014 | the length of this_command_keys when we started reading. */ | |
6015 | int echo_start; | |
f4255cd1 | 6016 | int keys_start; |
284f4730 JB |
6017 | |
6018 | /* The number of keymaps we're scanning right now, and the number of | |
6019 | keymaps we have allocated space for. */ | |
6020 | int nmaps; | |
6021 | int nmaps_allocated = 0; | |
6022 | ||
284f4730 JB |
6023 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
6024 | the current keymaps. */ | |
6025 | Lisp_Object *defs; | |
6026 | ||
f4255cd1 JB |
6027 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
6028 | in the current keymaps, or nil where it is not a prefix. */ | |
6029 | Lisp_Object *submaps; | |
6030 | ||
e0dff5f6 RS |
6031 | /* The local map to start out with at start of key sequence. */ |
6032 | Lisp_Object orig_local_map; | |
6033 | ||
6034 | /* 1 if we have already considered switching to the local-map property | |
6035 | of the place where a mouse click occurred. */ | |
6036 | int localized_local_map = 0; | |
6037 | ||
f4255cd1 JB |
6038 | /* The index in defs[] of the first keymap that has a binding for |
6039 | this key sequence. In other words, the lowest i such that | |
6040 | defs[i] is non-nil. */ | |
284f4730 JB |
6041 | int first_binding; |
6042 | ||
f4255cd1 | 6043 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
6044 | input key. |
6045 | ||
6046 | We use this to recover after recognizing a function key. Once we | |
6047 | realize that a suffix of the current key sequence is actually a | |
6048 | function key's escape sequence, we replace the suffix with the | |
6049 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
6050 | contains a new and different key sequence, so the echo area, |
6051 | this_command_keys, and the submaps and defs arrays are wrong. In | |
6052 | this situation, we set mock_input to t, set t to 0, and jump to | |
6053 | restart_sequence; the loop will read keys from keybuf up until | |
6054 | mock_input, thus rebuilding the state; and then it will resume | |
6055 | reading characters from the keyboard. */ | |
284f4730 JB |
6056 | int mock_input = 0; |
6057 | ||
253598e4 | 6058 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
6059 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
6060 | and fkey_map is its binding. | |
253598e4 | 6061 | |
f4255cd1 JB |
6062 | These might be > t, indicating that all function key scanning |
6063 | should hold off until t reaches them. We do this when we've just | |
6064 | recognized a function key, to avoid searching for the function | |
6065 | key's again in Vfunction_key_map. */ | |
284f4730 | 6066 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 6067 | Lisp_Object fkey_map; |
284f4730 | 6068 | |
a612e298 RS |
6069 | /* Likewise, for key_translation_map. */ |
6070 | int keytran_start = 0, keytran_end = 0; | |
6071 | Lisp_Object keytran_map; | |
6072 | ||
cd21b839 JB |
6073 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
6074 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 6075 | Lisp_Object delayed_switch_frame; |
cd21b839 | 6076 | |
51763820 BF |
6077 | /* See the comment below... */ |
6078 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 6079 | Lisp_Object first_event; |
51763820 | 6080 | #endif |
4efda7dd | 6081 | |
309b0fc8 RS |
6082 | Lisp_Object original_uppercase; |
6083 | int original_uppercase_position = -1; | |
6084 | ||
bc536d84 | 6085 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 6086 | int dummyflag = 0; |
bc536d84 | 6087 | |
3b9189f8 RS |
6088 | struct buffer *starting_buffer; |
6089 | ||
e9bf89a0 RS |
6090 | /* Nonzero if we seem to have got the beginning of a binding |
6091 | in function_key_map. */ | |
6092 | int function_key_possible = 0; | |
00a78037 | 6093 | int key_translation_possible = 0; |
e9bf89a0 | 6094 | |
3fe8e9a2 RS |
6095 | /* Save the status of key translation before each step, |
6096 | so that we can restore this after downcasing. */ | |
6097 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
6098 | int prev_fkey_start; |
6099 | int prev_fkey_end; | |
3fe8e9a2 RS |
6100 | |
6101 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
6102 | int prev_keytran_start; |
6103 | int prev_keytran_end; | |
3fe8e9a2 | 6104 | |
4efda7dd RS |
6105 | int junk; |
6106 | ||
6107 | last_nonmenu_event = Qnil; | |
6108 | ||
6109 | delayed_switch_frame = Qnil; | |
6110 | fkey_map = Vfunction_key_map; | |
a612e298 | 6111 | keytran_map = Vkey_translation_map; |
f4255cd1 | 6112 | |
a612e298 | 6113 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
6114 | if (NILP (Fkeymapp (Vfunction_key_map))) |
6115 | fkey_start = fkey_end = bufsize + 1; | |
6116 | ||
a612e298 RS |
6117 | /* If there is no key-translation-map, turn off scanning. */ |
6118 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
6119 | keytran_start = keytran_end = bufsize + 1; | |
6120 | ||
284f4730 JB |
6121 | if (INTERACTIVE) |
6122 | { | |
84d91fda RS |
6123 | if (!NILP (prompt)) |
6124 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 6125 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
6126 | /* This doesn't put in a dash if the echo buffer is empty, so |
6127 | you don't always see a dash hanging out in the minibuffer. */ | |
6128 | echo_dash (); | |
284f4730 JB |
6129 | } |
6130 | ||
f4255cd1 JB |
6131 | /* Record the initial state of the echo area and this_command_keys; |
6132 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 6133 | if (INTERACTIVE) |
df0f2ba1 | 6134 | echo_start = echo_length (); |
f4255cd1 | 6135 | keys_start = this_command_key_count; |
6321824f | 6136 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 6137 | |
51763820 BF |
6138 | #if defined (GOBBLE_FIRST_EVENT) |
6139 | /* This doesn't quite work, because some of the things that read_char | |
6140 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 6141 | this work right. */ |
51763820 | 6142 | |
4efda7dd RS |
6143 | /* Read the first char of the sequence specially, before setting |
6144 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 6145 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 6146 | &junk); |
51763820 | 6147 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 6148 | |
e0dff5f6 RS |
6149 | orig_local_map = get_local_map (PT, current_buffer); |
6150 | ||
7b4aedb9 JB |
6151 | /* We jump here when the key sequence has been thoroughly changed, and |
6152 | we need to rescan it starting from the beginning. When we jump here, | |
6153 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 6154 | replay_sequence: |
7b4aedb9 | 6155 | |
3b9189f8 | 6156 | starting_buffer = current_buffer; |
e9bf89a0 | 6157 | function_key_possible = 0; |
00a78037 | 6158 | key_translation_possible = 0; |
3b9189f8 | 6159 | |
f4255cd1 | 6160 | /* Build our list of keymaps. |
07d2b8de JB |
6161 | If we recognize a function key and replace its escape sequence in |
6162 | keybuf with its symbol, or if the sequence starts with a mouse | |
6163 | click and we need to switch buffers, we jump back here to rebuild | |
6164 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6165 | { |
284f4730 JB |
6166 | Lisp_Object *maps; |
6167 | ||
217258d5 KH |
6168 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
6169 | || !NILP (Voverriding_local_map)) | |
284f4730 | 6170 | { |
217258d5 | 6171 | if (3 > nmaps_allocated) |
9dd3131c | 6172 | { |
217258d5 KH |
6173 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
6174 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
6175 | nmaps_allocated = 3; | |
9dd3131c | 6176 | } |
217258d5 KH |
6177 | nmaps = 0; |
6178 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6179 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6180 | if (!NILP (Voverriding_local_map)) | |
6181 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 6182 | } |
9dd3131c RS |
6183 | else |
6184 | { | |
217258d5 KH |
6185 | nmaps = current_minor_maps (0, &maps); |
6186 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 6187 | { |
217258d5 KH |
6188 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
6189 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
6190 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 6191 | } |
217258d5 | 6192 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 6193 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 6194 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 6195 | #else |
217258d5 | 6196 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 6197 | #endif |
9dd3131c | 6198 | } |
217258d5 | 6199 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
6200 | } |
6201 | ||
6202 | /* Find an accurate initial value for first_binding. */ | |
6203 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 6204 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
6205 | break; |
6206 | ||
3b9189f8 | 6207 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
6208 | t = 0; |
6209 | ||
6210 | /* These are no-ops the first time through, but if we restart, they | |
6211 | revert the echo area and this_command_keys to their original state. */ | |
6212 | this_command_key_count = keys_start; | |
df0f2ba1 | 6213 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
6214 | echo_truncate (echo_start); |
6215 | ||
cca310da JB |
6216 | /* If the best binding for the current key sequence is a keymap, or |
6217 | we may be looking at a function key's escape sequence, keep on | |
6218 | reading. */ | |
253598e4 | 6219 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
6220 | || (first_binding >= nmaps |
6221 | && fkey_start < t | |
6222 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 6223 | && mock_input <= fkey_start) |
0d882d52 KH |
6224 | || (first_binding >= nmaps |
6225 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
6226 | /* Don't return in the middle of a possible function key sequence, |
6227 | if the only bindings we found were via case conversion. | |
6228 | Thus, if ESC O a has a function-key-map translation | |
6229 | and ESC o has a binding, don't return after ESC O, | |
6230 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 6231 | ) |
284f4730 JB |
6232 | { |
6233 | Lisp_Object key; | |
7d6de002 | 6234 | int used_mouse_menu = 0; |
284f4730 | 6235 | |
7b4aedb9 JB |
6236 | /* Where the last real key started. If we need to throw away a |
6237 | key that has expanded into more than one element of keybuf | |
6238 | (say, a mouse click on the mode line which is being treated | |
6239 | as [mode-line (mouse-...)], then we backtrack to this point | |
6240 | of keybuf. */ | |
6241 | int last_real_key_start; | |
6242 | ||
0a7f1fc0 JB |
6243 | /* These variables are analogous to echo_start and keys_start; |
6244 | while those allow us to restart the entire key sequence, | |
6245 | echo_local_start and keys_local_start allow us to throw away | |
6246 | just one key. */ | |
f4255cd1 JB |
6247 | int echo_local_start, keys_local_start, local_first_binding; |
6248 | ||
284f4730 | 6249 | if (t >= bufsize) |
3fe8e9a2 | 6250 | error ("Key sequence too long"); |
284f4730 | 6251 | |
f4255cd1 JB |
6252 | if (INTERACTIVE) |
6253 | echo_local_start = echo_length (); | |
6254 | keys_local_start = this_command_key_count; | |
6255 | local_first_binding = first_binding; | |
df0f2ba1 | 6256 | |
f4255cd1 | 6257 | replay_key: |
0a7f1fc0 | 6258 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
6259 | jumped back up to replay_key; in that case, these restore the |
6260 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 6261 | loop. */ |
40932d1a | 6262 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 6263 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
6264 | this_command_key_count = keys_local_start; |
6265 | first_binding = local_first_binding; | |
6266 | ||
7e85b935 RS |
6267 | /* By default, assume each event is "real". */ |
6268 | last_real_key_start = t; | |
6269 | ||
f4255cd1 | 6270 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
6271 | if (t < mock_input) |
6272 | { | |
6273 | key = keybuf[t]; | |
6274 | add_command_key (key); | |
a98ea3f9 RS |
6275 | if (echo_keystrokes) |
6276 | echo_char (key); | |
284f4730 | 6277 | } |
253598e4 JB |
6278 | |
6279 | /* If not, we should actually read a character. */ | |
284f4730 JB |
6280 | else |
6281 | { | |
a6d53864 RS |
6282 | struct buffer *buf = current_buffer; |
6283 | ||
beecf6a1 | 6284 | { |
c5fdd383 KH |
6285 | #ifdef MULTI_KBOARD |
6286 | KBOARD *interrupted_kboard = current_kboard; | |
df0f2ba1 | 6287 | struct frame *interrupted_frame = selected_frame; |
c5fdd383 | 6288 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 6289 | { |
5798cf15 KH |
6290 | if (!NILP (delayed_switch_frame)) |
6291 | { | |
c5fdd383 | 6292 | interrupted_kboard->kbd_queue |
5798cf15 | 6293 | = Fcons (delayed_switch_frame, |
c5fdd383 | 6294 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
6295 | delayed_switch_frame = Qnil; |
6296 | } | |
beecf6a1 | 6297 | while (t > 0) |
c5fdd383 KH |
6298 | interrupted_kboard->kbd_queue |
6299 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
6300 | |
6301 | /* If the side queue is non-empty, ensure it begins with a | |
6302 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
6303 | if (CONSP (interrupted_kboard->kbd_queue) |
6304 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
6305 | !(EVENT_HAS_PARAMETERS (key) |
6306 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
6307 | Qswitch_frame)))) | |
df0f2ba1 KH |
6308 | { |
6309 | Lisp_Object frame; | |
6310 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 6311 | interrupted_kboard->kbd_queue |
df0f2ba1 | 6312 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 6313 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 6314 | } |
beecf6a1 | 6315 | mock_input = 0; |
a6e0153c | 6316 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
6317 | goto replay_sequence; |
6318 | } | |
bded54dd | 6319 | #endif |
beecf6a1 KH |
6320 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
6321 | &used_mouse_menu); | |
6322 | } | |
284f4730 | 6323 | |
dcc408a0 RS |
6324 | /* read_char returns t when it shows a menu and the user rejects it. |
6325 | Just return -1. */ | |
6326 | if (EQ (key, Qt)) | |
6327 | return -1; | |
6328 | ||
f4255cd1 | 6329 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
6330 | Emacs 18 handles this by returning immediately with a |
6331 | zero, so that's what we'll do. */ | |
8c18cbfb | 6332 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 6333 | { |
f4255cd1 | 6334 | t = 0; |
bc536d84 RS |
6335 | /* The Microsoft C compiler can't handle the goto that |
6336 | would go here. */ | |
309b0fc8 | 6337 | dummyflag = 1; |
bc536d84 | 6338 | break; |
cd21b839 | 6339 | } |
df0f2ba1 | 6340 | |
3cb81011 KH |
6341 | /* If the current buffer has been changed from under us, the |
6342 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 6343 | if (BUFFERP (key)) |
3cb81011 KH |
6344 | { |
6345 | mock_input = t; | |
f571ae0d RS |
6346 | /* Reset the current buffer from the selected window |
6347 | in case something changed the former and not the latter. | |
6348 | This is to be more consistent with the behavior | |
6349 | of the command_loop_1. */ | |
6350 | if (fix_current_buffer) | |
6351 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
6352 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
6353 | ||
a6e0153c | 6354 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
6355 | goto replay_sequence; |
6356 | } | |
6357 | ||
3b9189f8 RS |
6358 | /* If we have a quit that was typed in another frame, and |
6359 | quit_throw_to_read_char switched buffers, | |
6360 | replay to get the right keymap. */ | |
9343ab07 | 6361 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 RS |
6362 | { |
6363 | keybuf[t++] = key; | |
6364 | mock_input = t; | |
6365 | Vquit_flag = Qnil; | |
a6e0153c | 6366 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
6367 | goto replay_sequence; |
6368 | } | |
3cb81011 | 6369 | |
284f4730 | 6370 | Vquit_flag = Qnil; |
7e85b935 | 6371 | } |
284f4730 | 6372 | |
df0f2ba1 | 6373 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
6374 | in their CHAR-ADDRESS field. For example, a click on |
6375 | the mode line is prefixed by the symbol `mode-line'. | |
6376 | ||
6377 | Furthermore, key sequences beginning with mouse clicks | |
6378 | are read using the keymaps of the buffer clicked on, not | |
6379 | the current buffer. So we may have to switch the buffer | |
6380 | here. | |
6381 | ||
6382 | When we turn one event into two events, we must make sure | |
6383 | that neither of the two looks like the original--so that, | |
6384 | if we replay the events, they won't be expanded again. | |
6385 | If not for this, such reexpansion could happen either here | |
6386 | or when user programs play with this-command-keys. */ | |
6387 | if (EVENT_HAS_PARAMETERS (key)) | |
6388 | { | |
9b8eb840 | 6389 | Lisp_Object kind; |
cca310da | 6390 | |
9b8eb840 | 6391 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 6392 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 6393 | { |
9b8eb840 | 6394 | Lisp_Object window, posn; |
f4255cd1 | 6395 | |
9b8eb840 KH |
6396 | window = POSN_WINDOW (EVENT_START (key)); |
6397 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
8c18cbfb | 6398 | if (CONSP (posn)) |
0a7f1fc0 | 6399 | { |
7e85b935 RS |
6400 | /* We're looking at the second event of a |
6401 | sequence which we expanded before. Set | |
6402 | last_real_key_start appropriately. */ | |
6403 | if (t > 0) | |
6404 | last_real_key_start = t - 1; | |
cd21b839 | 6405 | } |
7e85b935 RS |
6406 | |
6407 | /* Key sequences beginning with mouse clicks are | |
6408 | read using the keymaps in the buffer clicked on, | |
6409 | not the current buffer. If we're at the | |
6410 | beginning of a key sequence, switch buffers. */ | |
6411 | if (last_real_key_start == 0 | |
8c18cbfb KH |
6412 | && WINDOWP (window) |
6413 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 6414 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 6415 | { |
7e85b935 RS |
6416 | keybuf[t] = key; |
6417 | mock_input = t + 1; | |
6418 | ||
6419 | /* Arrange to go back to the original buffer once we're | |
6420 | done reading the key sequence. Note that we can't | |
6421 | use save_excursion_{save,restore} here, because they | |
6422 | save point as well as the current buffer; we don't | |
6423 | want to save point, because redisplay may change it, | |
6424 | to accommodate a Fset_window_start or something. We | |
6425 | don't want to do this at the top of the function, | |
6426 | because we may get input from a subprocess which | |
6427 | wants to change the selected window and stuff (say, | |
6428 | emacsclient). */ | |
6429 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
6430 | ||
6431 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); | |
e0dff5f6 | 6432 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 6433 | goto replay_sequence; |
0a7f1fc0 | 6434 | } |
e0dff5f6 RS |
6435 | /* For a mouse click, get the local text-property keymap |
6436 | of the place clicked on, rather than point. */ | |
6437 | if (last_real_key_start == 0 && CONSP (XCONS (key)->cdr) | |
6438 | && ! localized_local_map) | |
5ec75a55 | 6439 | { |
e0dff5f6 RS |
6440 | Lisp_Object map_here, start, pos; |
6441 | ||
6442 | localized_local_map = 1; | |
6443 | start = EVENT_START (key); | |
6444 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) | |
6445 | { | |
6446 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
6447 | if (INTEGERP (pos) |
6448 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
6449 | { |
6450 | map_here = get_local_map (XINT (pos), current_buffer); | |
6451 | if (!EQ (map_here, orig_local_map)) | |
6452 | { | |
6453 | orig_local_map = map_here; | |
6454 | keybuf[t] = key; | |
6455 | mock_input = t + 1; | |
5ec75a55 | 6456 | |
e0dff5f6 RS |
6457 | goto replay_sequence; |
6458 | } | |
6459 | } | |
6460 | } | |
6461 | } | |
6462 | ||
6463 | /* Expand mode-line and scroll-bar events into two events: | |
6464 | use posn as a fake prefix key. */ | |
6465 | if (SYMBOLP (posn)) | |
6466 | { | |
7e85b935 | 6467 | if (t + 1 >= bufsize) |
3fe8e9a2 | 6468 | error ("Key sequence too long"); |
7e85b935 RS |
6469 | keybuf[t] = posn; |
6470 | keybuf[t+1] = key; | |
6471 | mock_input = t + 2; | |
6472 | ||
6473 | /* Zap the position in key, so we know that we've | |
6474 | expanded it, and don't try to do so again. */ | |
6475 | POSN_BUFFER_POSN (EVENT_START (key)) | |
6476 | = Fcons (posn, Qnil); | |
6477 | goto replay_key; | |
5ec75a55 | 6478 | } |
0a7f1fc0 | 6479 | } |
7e85b935 | 6480 | else if (EQ (kind, Qswitch_frame)) |
a6d53864 | 6481 | { |
ce98e608 KH |
6482 | /* If we're at the beginning of a key sequence, and the caller |
6483 | says it's okay, go ahead and return this event. If we're | |
6484 | in the midst of a key sequence, delay it until the end. */ | |
6485 | if (t > 0 || !can_return_switch_frame) | |
7e85b935 RS |
6486 | { |
6487 | delayed_switch_frame = key; | |
6488 | goto replay_key; | |
6489 | } | |
6490 | } | |
7a80a6f6 RS |
6491 | else if (CONSP (XCONS (key)->cdr) |
6492 | && CONSP (EVENT_START (key)) | |
6493 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 6494 | { |
9b8eb840 | 6495 | Lisp_Object posn; |
7e85b935 | 6496 | |
9b8eb840 | 6497 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
6498 | /* Handle menu-bar events: |
6499 | insert the dummy prefix event `menu-bar'. */ | |
6500 | if (EQ (posn, Qmenu_bar)) | |
6501 | { | |
6502 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 6503 | error ("Key sequence too long"); |
7e85b935 RS |
6504 | keybuf[t] = posn; |
6505 | keybuf[t+1] = key; | |
6506 | ||
6507 | /* Zap the position in key, so we know that we've | |
6508 | expanded it, and don't try to do so again. */ | |
6509 | POSN_BUFFER_POSN (EVENT_START (key)) | |
6510 | = Fcons (posn, Qnil); | |
6511 | ||
6512 | mock_input = t + 2; | |
6513 | goto replay_sequence; | |
6514 | } | |
8c18cbfb | 6515 | else if (CONSP (posn)) |
7e85b935 RS |
6516 | { |
6517 | /* We're looking at the second event of a | |
6518 | sequence which we expanded before. Set | |
6519 | last_real_key_start appropriately. */ | |
6520 | if (last_real_key_start == t && t > 0) | |
6521 | last_real_key_start = t - 1; | |
6522 | } | |
a6d53864 | 6523 | } |
284f4730 | 6524 | } |
f4255cd1 JB |
6525 | |
6526 | /* We have finally decided that KEY is something we might want | |
6527 | to look up. */ | |
284f4730 JB |
6528 | first_binding = (follow_key (key, |
6529 | nmaps - first_binding, | |
253598e4 | 6530 | submaps + first_binding, |
284f4730 | 6531 | defs + first_binding, |
4e50f26a | 6532 | submaps + first_binding) |
284f4730 | 6533 | + first_binding); |
0a7f1fc0 | 6534 | |
f4255cd1 | 6535 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
6536 | if (first_binding >= nmaps) |
6537 | { | |
9b8eb840 | 6538 | Lisp_Object head; |
0a7f1fc0 | 6539 | |
9b8eb840 | 6540 | head = EVENT_HEAD (key); |
24736fbc | 6541 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
6542 | { |
6543 | read_key_sequence_cmd = Vprefix_help_command; | |
6544 | keybuf[t++] = key; | |
6545 | last_nonmenu_event = key; | |
bc536d84 RS |
6546 | /* The Microsoft C compiler can't handle the goto that |
6547 | would go here. */ | |
309b0fc8 | 6548 | dummyflag = 1; |
0d882d52 | 6549 | break; |
7e85b935 RS |
6550 | } |
6551 | ||
8c18cbfb | 6552 | if (SYMBOLP (head)) |
0a7f1fc0 | 6553 | { |
9b8eb840 KH |
6554 | Lisp_Object breakdown; |
6555 | int modifiers; | |
0a7f1fc0 | 6556 | |
9b8eb840 KH |
6557 | breakdown = parse_modifiers (head); |
6558 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
6559 | /* Attempt to reduce an unbound mouse event to a simpler |
6560 | event that is bound: | |
6561 | Drags reduce to clicks. | |
6562 | Double-clicks reduce to clicks. | |
6563 | Triple-clicks reduce to double-clicks, then to clicks. | |
6564 | Down-clicks are eliminated. | |
6565 | Double-downs reduce to downs, then are eliminated. | |
6566 | Triple-downs reduce to double-downs, then to downs, | |
6567 | then are eliminated. */ | |
6568 | if (modifiers & (down_modifier | drag_modifier | |
6569 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 6570 | { |
559f9d04 RS |
6571 | while (modifiers & (down_modifier | drag_modifier |
6572 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
6573 | { |
6574 | Lisp_Object new_head, new_click; | |
6575 | if (modifiers & triple_modifier) | |
6576 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
6577 | else if (modifiers & double_modifier) |
6578 | modifiers &= ~double_modifier; | |
6579 | else if (modifiers & drag_modifier) | |
6580 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
6581 | else |
6582 | { | |
6583 | /* Dispose of this `down' event by simply jumping | |
6584 | back to replay_key, to get another event. | |
6585 | ||
6586 | Note that if this event came from mock input, | |
6587 | then just jumping back to replay_key will just | |
6588 | hand it to us again. So we have to wipe out any | |
6589 | mock input. | |
6590 | ||
6591 | We could delete keybuf[t] and shift everything | |
6592 | after that to the left by one spot, but we'd also | |
6593 | have to fix up any variable that points into | |
6594 | keybuf, and shifting isn't really necessary | |
6595 | anyway. | |
6596 | ||
6597 | Adding prefixes for non-textual mouse clicks | |
6598 | creates two characters of mock input, and both | |
6599 | must be thrown away. If we're only looking at | |
6600 | the prefix now, we can just jump back to | |
6601 | replay_key. On the other hand, if we've already | |
6602 | processed the prefix, and now the actual click | |
6603 | itself is giving us trouble, then we've lost the | |
6604 | state of the keymaps we want to backtrack to, and | |
6605 | we need to replay the whole sequence to rebuild | |
6606 | it. | |
6607 | ||
6608 | Beyond that, only function key expansion could | |
6609 | create more than two keys, but that should never | |
6610 | generate mouse events, so it's okay to zero | |
6611 | mock_input in that case too. | |
6612 | ||
6613 | Isn't this just the most wonderful code ever? */ | |
6614 | if (t == last_real_key_start) | |
6615 | { | |
6616 | mock_input = 0; | |
6617 | goto replay_key; | |
6618 | } | |
6619 | else | |
6620 | { | |
6621 | mock_input = last_real_key_start; | |
6622 | goto replay_sequence; | |
6623 | } | |
6624 | } | |
6625 | ||
27203ead RS |
6626 | new_head |
6627 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
6628 | new_click | |
6629 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
6630 | |
6631 | /* Look for a binding for this new key. follow_key | |
6632 | promises that it didn't munge submaps the | |
6633 | last time we called it, since key was unbound. */ | |
27203ead RS |
6634 | first_binding |
6635 | = (follow_key (new_click, | |
6636 | nmaps - local_first_binding, | |
6637 | submaps + local_first_binding, | |
6638 | defs + local_first_binding, | |
4e50f26a | 6639 | submaps + local_first_binding) |
27203ead | 6640 | + local_first_binding); |
fbcd35bd JB |
6641 | |
6642 | /* If that click is bound, go for it. */ | |
6643 | if (first_binding < nmaps) | |
6644 | { | |
6645 | key = new_click; | |
6646 | break; | |
6647 | } | |
6648 | /* Otherwise, we'll leave key set to the drag event. */ | |
6649 | } | |
0a7f1fc0 JB |
6650 | } |
6651 | } | |
6652 | } | |
6653 | ||
284f4730 | 6654 | keybuf[t++] = key; |
7d6de002 RS |
6655 | /* Normally, last_nonmenu_event gets the previous key we read. |
6656 | But when a mouse popup menu is being used, | |
6657 | we don't update last_nonmenu_event; it continues to hold the mouse | |
6658 | event that preceded the first level of menu. */ | |
6659 | if (!used_mouse_menu) | |
6660 | last_nonmenu_event = key; | |
284f4730 | 6661 | |
6321824f RS |
6662 | /* Record what part of this_command_keys is the current key sequence. */ |
6663 | this_single_command_key_start = this_command_key_count - t; | |
6664 | ||
3fe8e9a2 RS |
6665 | prev_fkey_map = fkey_map; |
6666 | prev_fkey_start = fkey_start; | |
6667 | prev_fkey_end = fkey_end; | |
6668 | ||
6669 | prev_keytran_map = keytran_map; | |
6670 | prev_keytran_start = keytran_start; | |
6671 | prev_keytran_end = keytran_end; | |
6672 | ||
284f4730 | 6673 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
6674 | off the end of it. We only want to scan real keyboard input |
6675 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 6676 | re-reading old events, don't examine it. */ |
4e50f26a | 6677 | if (first_binding >= nmaps |
253598e4 | 6678 | && t >= mock_input) |
284f4730 JB |
6679 | { |
6680 | Lisp_Object fkey_next; | |
6681 | ||
e9bf89a0 RS |
6682 | /* Continue scan from fkey_end until we find a bound suffix. |
6683 | If we fail, increment fkey_start | |
6684 | and start fkey_end from there. */ | |
284f4730 JB |
6685 | while (fkey_end < t) |
6686 | { | |
f4255cd1 JB |
6687 | Lisp_Object key; |
6688 | ||
6689 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
6690 | /* Look up meta-characters by prefixing them |
6691 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 6692 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 6693 | { |
e74fbc70 RS |
6694 | fkey_next |
6695 | = get_keymap_1 | |
f4255cd1 | 6696 | (get_keyelt |
c6a67acd | 6697 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 6698 | 0, 1); |
bb9e9bed | 6699 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 6700 | } |
067ffa38 JB |
6701 | else |
6702 | fkey_next = fkey_map; | |
6703 | ||
e74fbc70 | 6704 | fkey_next |
c6a67acd | 6705 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 0); |
067ffa38 | 6706 | |
7a80a6f6 RS |
6707 | #if 0 /* I didn't turn this on, because it might cause trouble |
6708 | for the mapping of return into C-m and tab into C-i. */ | |
6709 | /* Optionally don't map function keys into other things. | |
6710 | This enables the user to redefine kp- keys easily. */ | |
6711 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
6712 | fkey_next = Qnil; | |
6713 | #endif | |
6714 | ||
1abe6abe RS |
6715 | /* If the function key map gives a function, not an |
6716 | array, then call the function with no args and use | |
6717 | its value instead. */ | |
6718 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
6719 | && fkey_end == t) | |
6720 | { | |
6721 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6722 | Lisp_Object tem; | |
6723 | tem = fkey_next; | |
6724 | ||
6725 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 6726 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
6727 | UNGCPRO; |
6728 | /* If the function returned something invalid, | |
6729 | barf--don't ignore it. | |
df0f2ba1 | 6730 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6731 | other variables.) */ |
6732 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 6733 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
6734 | } |
6735 | ||
e9bf89a0 RS |
6736 | function_key_possible = ! NILP (fkey_next); |
6737 | ||
85bc5181 | 6738 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 6739 | function key map and it's a suffix of the current |
85bc5181 | 6740 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 6741 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 6742 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
6743 | && fkey_end == t) |
6744 | { | |
2e864a76 | 6745 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
6746 | |
6747 | t = fkey_start + len; | |
284f4730 | 6748 | if (t >= bufsize) |
3fe8e9a2 | 6749 | error ("Key sequence too long"); |
284f4730 | 6750 | |
f5ea6163 JB |
6751 | if (VECTORP (fkey_next)) |
6752 | bcopy (XVECTOR (fkey_next)->contents, | |
6753 | keybuf + fkey_start, | |
6754 | (t - fkey_start) * sizeof (keybuf[0])); | |
6755 | else if (STRINGP (fkey_next)) | |
6756 | { | |
6757 | int i; | |
6758 | ||
6759 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6760 | XSETFASTINT (keybuf[fkey_start + i], |
6761 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 6762 | } |
df0f2ba1 | 6763 | |
284f4730 JB |
6764 | mock_input = t; |
6765 | fkey_start = fkey_end = t; | |
32e6d806 | 6766 | fkey_map = Vfunction_key_map; |
284f4730 | 6767 | |
00a78037 RS |
6768 | /* Do pass the results through key-translation-map. */ |
6769 | keytran_start = keytran_end = 0; | |
6770 | keytran_map = Vkey_translation_map; | |
6771 | ||
f4255cd1 | 6772 | goto replay_sequence; |
284f4730 | 6773 | } |
df0f2ba1 | 6774 | |
f4255cd1 | 6775 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 6776 | |
df0f2ba1 | 6777 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 6778 | fkey_start. */ |
284f4730 JB |
6779 | if (NILP (fkey_map)) |
6780 | { | |
6781 | fkey_end = ++fkey_start; | |
6782 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 6783 | function_key_possible = 0; |
284f4730 JB |
6784 | } |
6785 | } | |
6786 | } | |
a612e298 RS |
6787 | |
6788 | /* Look for this sequence in key-translation-map. */ | |
6789 | { | |
6790 | Lisp_Object keytran_next; | |
6791 | ||
6792 | /* Scan from keytran_end until we find a bound suffix. */ | |
6793 | while (keytran_end < t) | |
6794 | { | |
6795 | Lisp_Object key; | |
6796 | ||
6797 | key = keybuf[keytran_end++]; | |
6798 | /* Look up meta-characters by prefixing them | |
6799 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 6800 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
6801 | { |
6802 | keytran_next | |
6803 | = get_keymap_1 | |
6804 | (get_keyelt | |
c6a67acd | 6805 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 6806 | 0, 1); |
bb9e9bed | 6807 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
6808 | } |
6809 | else | |
6810 | keytran_next = keytran_map; | |
6811 | ||
6812 | keytran_next | |
c6a67acd | 6813 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 0); |
a612e298 | 6814 | |
1abe6abe RS |
6815 | /* If the key translation map gives a function, not an |
6816 | array, then call the function with no args and use | |
6817 | its value instead. */ | |
6818 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
6819 | && keytran_end == t) | |
6820 | { | |
6821 | struct gcpro gcpro1, gcpro2, gcpro3; | |
6822 | Lisp_Object tem; | |
6823 | tem = keytran_next; | |
6824 | ||
40932d1a | 6825 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 6826 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
6827 | UNGCPRO; |
6828 | /* If the function returned something invalid, | |
6829 | barf--don't ignore it. | |
df0f2ba1 | 6830 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
6831 | other variables.) */ |
6832 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 6833 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
6834 | } |
6835 | ||
00a78037 RS |
6836 | key_translation_possible = ! NILP (keytran_next); |
6837 | ||
a612e298 | 6838 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 6839 | key translation map and it's a suffix of the current |
a612e298 RS |
6840 | sequence (i.e. keytran_end == t), replace it with |
6841 | the binding and restart with keytran_start at the end. */ | |
6842 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
6843 | && keytran_end == t) | |
6844 | { | |
2e864a76 | 6845 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
6846 | |
6847 | t = keytran_start + len; | |
6848 | if (t >= bufsize) | |
3fe8e9a2 | 6849 | error ("Key sequence too long"); |
a612e298 RS |
6850 | |
6851 | if (VECTORP (keytran_next)) | |
6852 | bcopy (XVECTOR (keytran_next)->contents, | |
6853 | keybuf + keytran_start, | |
6854 | (t - keytran_start) * sizeof (keybuf[0])); | |
6855 | else if (STRINGP (keytran_next)) | |
6856 | { | |
6857 | int i; | |
6858 | ||
6859 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
6860 | XSETFASTINT (keybuf[keytran_start + i], |
6861 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
6862 | } |
6863 | ||
6864 | mock_input = t; | |
6865 | keytran_start = keytran_end = t; | |
6866 | keytran_map = Vkey_translation_map; | |
6867 | ||
00a78037 RS |
6868 | /* Don't pass the results of key-translation-map |
6869 | through function-key-map. */ | |
6870 | fkey_start = fkey_end = t; | |
6871 | fkey_map = Vkey_translation_map; | |
6872 | ||
a612e298 RS |
6873 | goto replay_sequence; |
6874 | } | |
6875 | ||
6876 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
6877 | ||
df0f2ba1 | 6878 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
6879 | keytran_start. */ |
6880 | if (NILP (keytran_map)) | |
6881 | { | |
6882 | keytran_end = ++keytran_start; | |
6883 | keytran_map = Vkey_translation_map; | |
00a78037 | 6884 | key_translation_possible = 0; |
a612e298 RS |
6885 | } |
6886 | } | |
6887 | } | |
4e50f26a RS |
6888 | |
6889 | /* If KEY is not defined in any of the keymaps, | |
6890 | and cannot be part of a function key or translation, | |
6891 | and is an upper case letter | |
6892 | use the corresponding lower-case letter instead. */ | |
6893 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 6894 | && ! key_translation_possible |
8c18cbfb | 6895 | && INTEGERP (key) |
4e50f26a | 6896 | && ((((XINT (key) & 0x3ffff) |
301738ed | 6897 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
6898 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
6899 | || (XINT (key) & shift_modifier))) | |
6900 | { | |
569871d2 | 6901 | Lisp_Object new_key; |
569871d2 | 6902 | |
309b0fc8 RS |
6903 | original_uppercase = key; |
6904 | original_uppercase_position = t - 1; | |
6905 | ||
831f35a2 | 6906 | if (XINT (key) & shift_modifier) |
569871d2 | 6907 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 6908 | else |
569871d2 RS |
6909 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
6910 | | (XINT (key) & ~0x3ffff))); | |
6911 | ||
3fe8e9a2 RS |
6912 | /* We have to do this unconditionally, regardless of whether |
6913 | the lower-case char is defined in the keymaps, because they | |
6914 | might get translated through function-key-map. */ | |
6915 | keybuf[t - 1] = new_key; | |
6916 | mock_input = t; | |
6917 | ||
6918 | fkey_map = prev_fkey_map; | |
6919 | fkey_start = prev_fkey_start; | |
6920 | fkey_end = prev_fkey_end; | |
6921 | ||
6922 | keytran_map = prev_keytran_map; | |
6923 | keytran_start = prev_keytran_start; | |
6924 | keytran_end = prev_keytran_end; | |
6925 | ||
6926 | goto replay_sequence; | |
4e50f26a | 6927 | } |
ef8fd672 RS |
6928 | /* If KEY is not defined in any of the keymaps, |
6929 | and cannot be part of a function key or translation, | |
6930 | and is a shifted function key, | |
6931 | use the corresponding unshifted function key instead. */ | |
6932 | if (first_binding == nmaps && ! function_key_possible | |
6933 | && ! key_translation_possible | |
6934 | && SYMBOLP (key)) | |
6935 | { | |
6936 | Lisp_Object breakdown; | |
6937 | int modifiers; | |
6938 | ||
6939 | breakdown = parse_modifiers (key); | |
6940 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
6941 | if (modifiers & shift_modifier) | |
6942 | { | |
569871d2 | 6943 | Lisp_Object new_key; |
3fe8e9a2 RS |
6944 | |
6945 | original_uppercase = key; | |
6946 | original_uppercase_position = t - 1; | |
ef8fd672 | 6947 | |
569871d2 RS |
6948 | modifiers &= ~shift_modifier; |
6949 | new_key = apply_modifiers (modifiers, | |
6950 | XCONS (breakdown)->car); | |
6951 | ||
3fe8e9a2 RS |
6952 | keybuf[t - 1] = new_key; |
6953 | mock_input = t; | |
6954 | ||
6955 | fkey_map = prev_fkey_map; | |
6956 | fkey_start = prev_fkey_start; | |
6957 | fkey_end = prev_fkey_end; | |
6958 | ||
6959 | keytran_map = prev_keytran_map; | |
6960 | keytran_start = prev_keytran_start; | |
6961 | keytran_end = prev_keytran_end; | |
6962 | ||
6963 | goto replay_sequence; | |
ef8fd672 RS |
6964 | } |
6965 | } | |
284f4730 JB |
6966 | } |
6967 | ||
309b0fc8 | 6968 | if (!dummyflag) |
bc536d84 RS |
6969 | read_key_sequence_cmd = (first_binding < nmaps |
6970 | ? defs[first_binding] | |
6971 | : Qnil); | |
284f4730 | 6972 | |
cd21b839 | 6973 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 6974 | unbind_to (count, Qnil); |
07f76a14 | 6975 | |
3fe8e9a2 RS |
6976 | /* Don't downcase the last character if the caller says don't. |
6977 | Don't downcase it if the result is undefined, either. */ | |
6978 | if ((dont_downcase_last || first_binding >= nmaps) | |
6979 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
6980 | keybuf[t - 1] = original_uppercase; |
6981 | ||
07f76a14 JB |
6982 | /* Occasionally we fabricate events, perhaps by expanding something |
6983 | according to function-key-map, or by adding a prefix symbol to a | |
6984 | mouse click in the scroll bar or modeline. In this cases, return | |
6985 | the entire generated key sequence, even if we hit an unbound | |
6986 | prefix or a definition before the end. This means that you will | |
6987 | be able to push back the event properly, and also means that | |
6988 | read-key-sequence will always return a logical unit. | |
6989 | ||
6990 | Better ideas? */ | |
cca310da JB |
6991 | for (; t < mock_input; t++) |
6992 | { | |
a98ea3f9 RS |
6993 | if (echo_keystrokes) |
6994 | echo_char (keybuf[t]); | |
cca310da JB |
6995 | add_command_key (keybuf[t]); |
6996 | } | |
07f76a14 | 6997 | |
284f4730 JB |
6998 | return t; |
6999 | } | |
7000 | ||
a612e298 RS |
7001 | #if 0 /* This doc string is too long for some compilers. |
7002 | This commented-out definition serves for DOC. */ | |
ce98e608 | 7003 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
7004 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
7005 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
7006 | current local and global maps.\n\ | |
7007 | \n\ | |
c0a58692 RS |
7008 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
7009 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
7010 | as a continuation of the previous key.\n\ | |
284f4730 | 7011 | \n\ |
309b0fc8 RS |
7012 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
7013 | convert the last event to lower case. (Normally any upper case event\n\ | |
7014 | is converted to lower case if the original event is undefined and the lower\n\ | |
7015 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
7016 | a key sequence to be defined.\n\ | |
7017 | \n\ | |
cb5df6ae JB |
7018 | A C-g typed while in this function is treated like any other character,\n\ |
7019 | and `quit-flag' is not set.\n\ | |
7020 | \n\ | |
7021 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
7022 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
7023 | of the selected window as normal.\n\ | |
ede41463 | 7024 | ""\n\ |
cb5df6ae JB |
7025 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
7026 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
7027 | or multi-click event is unbound, but the corresponding click event would\n\ |
7028 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 7029 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 7030 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
7031 | \n\ |
7032 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
7033 | lines separating windows, and scroll bars with imaginary keys\n\ |
7034 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 7035 | \n\ |
ce98e608 KH |
7036 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
7037 | function will process a switch-frame event if the user switches frames\n\ | |
7038 | before typing anything. If the user switches frames in the middle of a\n\ | |
7039 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
7040 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
7041 | \n\ |
7042 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
7043 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
4bb994d1 | 7044 | `function-key-map' for more details.") |
11e08aab | 7045 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
a612e298 RS |
7046 | #endif |
7047 | ||
ce98e608 | 7048 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
a612e298 | 7049 | 0) |
ce98e608 | 7050 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
309b0fc8 | 7051 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
ce98e608 | 7052 | Lisp_Object can_return_switch_frame; |
284f4730 JB |
7053 | { |
7054 | Lisp_Object keybuf[30]; | |
7055 | register int i; | |
7056 | struct gcpro gcpro1, gcpro2; | |
7057 | ||
7058 | if (!NILP (prompt)) | |
7059 | CHECK_STRING (prompt, 0); | |
7060 | QUIT; | |
7061 | ||
7062 | bzero (keybuf, sizeof keybuf); | |
7063 | GCPRO1 (keybuf[0]); | |
7064 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
7065 | ||
daa37602 | 7066 | if (NILP (continue_echo)) |
6321824f RS |
7067 | { |
7068 | this_command_key_count = 0; | |
7069 | this_single_command_key_start = 0; | |
7070 | } | |
c0a58692 | 7071 | |
309b0fc8 | 7072 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 7073 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 7074 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 7075 | |
dcc408a0 RS |
7076 | if (i == -1) |
7077 | { | |
7078 | Vquit_flag = Qt; | |
7079 | QUIT; | |
7080 | } | |
284f4730 | 7081 | UNGCPRO; |
86e5706b | 7082 | return make_event_array (i, keybuf); |
284f4730 JB |
7083 | } |
7084 | \f | |
158f7532 | 7085 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
7086 | "Execute CMD as an editor command.\n\ |
7087 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
7088 | Optional second arg RECORD-FLAG non-nil\n\ | |
7089 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
7090 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
7091 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 7092 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
7093 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
7094 | a special event, so ignore the prefix argument and don't clear it.") | |
7095 | (cmd, record_flag, keys, special) | |
7096 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
7097 | { |
7098 | register Lisp_Object final; | |
7099 | register Lisp_Object tem; | |
7100 | Lisp_Object prefixarg; | |
7101 | struct backtrace backtrace; | |
7102 | extern int debug_on_next_call; | |
7103 | ||
284f4730 JB |
7104 | debug_on_next_call = 0; |
7105 | ||
158f7532 RS |
7106 | if (NILP (special)) |
7107 | { | |
7108 | prefixarg = current_kboard->Vprefix_arg; | |
7109 | Vcurrent_prefix_arg = prefixarg; | |
7110 | current_kboard->Vprefix_arg = Qnil; | |
7111 | } | |
7112 | else | |
7113 | prefixarg = Qnil; | |
7114 | ||
8c18cbfb | 7115 | if (SYMBOLP (cmd)) |
284f4730 JB |
7116 | { |
7117 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 7118 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
7119 | { |
7120 | tem = Fsymbol_value (Qdisabled_command_hook); | |
7121 | if (!NILP (tem)) | |
7122 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
7123 | } | |
284f4730 JB |
7124 | } |
7125 | ||
01e26217 | 7126 | while (1) |
284f4730 | 7127 | { |
ffd56f97 | 7128 | final = Findirect_function (cmd); |
284f4730 JB |
7129 | |
7130 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
7131 | { |
7132 | struct gcpro gcpro1, gcpro2; | |
7133 | ||
7134 | GCPRO2 (cmd, prefixarg); | |
7135 | do_autoload (final, cmd); | |
7136 | UNGCPRO; | |
7137 | } | |
284f4730 JB |
7138 | else |
7139 | break; | |
7140 | } | |
7141 | ||
8c18cbfb | 7142 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
7143 | { |
7144 | /* If requested, place the macro in the command history. For | |
7145 | other sorts of commands, call-interactively takes care of | |
7146 | this. */ | |
e57d8fd8 | 7147 | if (!NILP (record_flag)) |
284f4730 JB |
7148 | Vcommand_history |
7149 | = Fcons (Fcons (Qexecute_kbd_macro, | |
7150 | Fcons (final, Fcons (prefixarg, Qnil))), | |
7151 | Vcommand_history); | |
7152 | ||
7153 | return Fexecute_kbd_macro (final, prefixarg); | |
7154 | } | |
8c18cbfb | 7155 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
7156 | { |
7157 | backtrace.next = backtrace_list; | |
7158 | backtrace_list = &backtrace; | |
7159 | backtrace.function = &Qcall_interactively; | |
7160 | backtrace.args = &cmd; | |
7161 | backtrace.nargs = 1; | |
7162 | backtrace.evalargs = 0; | |
7163 | ||
e57d8fd8 | 7164 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
7165 | |
7166 | backtrace_list = backtrace.next; | |
7167 | return tem; | |
7168 | } | |
7169 | return Qnil; | |
7170 | } | |
7171 | \f | |
284f4730 JB |
7172 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
7173 | 1, 1, "P", | |
7174 | "Read function name, then read its arguments and call it.") | |
7175 | (prefixarg) | |
7176 | Lisp_Object prefixarg; | |
7177 | { | |
7178 | Lisp_Object function; | |
7179 | char buf[40]; | |
7180 | Lisp_Object saved_keys; | |
5434fce6 | 7181 | Lisp_Object bindings, value; |
214360e9 | 7182 | struct gcpro gcpro1, gcpro2; |
284f4730 | 7183 | |
b0f2a7bf KH |
7184 | saved_keys = Fvector (this_command_key_count, |
7185 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 7186 | buf[0] = 0; |
fde7aff8 | 7187 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
7188 | |
7189 | if (EQ (prefixarg, Qminus)) | |
7190 | strcpy (buf, "- "); | |
7191 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
7192 | strcpy (buf, "C-u "); | |
8c18cbfb | 7193 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
7194 | { |
7195 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7196 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
7197 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7198 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
7199 | else | |
7200 | abort (); | |
7201 | } | |
8c18cbfb | 7202 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
7203 | { |
7204 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7205 | sprintf (buf, "%d ", XINT (prefixarg)); | |
7206 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7207 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
7208 | else | |
7209 | abort (); | |
7210 | } | |
284f4730 JB |
7211 | |
7212 | /* This isn't strictly correct if execute-extended-command | |
7213 | is bound to anything else. Perhaps it should use | |
7214 | this_command_keys? */ | |
7215 | strcat (buf, "M-x "); | |
7216 | ||
7217 | /* Prompt with buf, and then read a string, completing from and | |
7218 | restricting to the set of all defined commands. Don't provide | |
51763820 | 7219 | any initial input. Save the command read on the extended-command |
03b4122a | 7220 | history list. */ |
284f4730 JB |
7221 | function = Fcompleting_read (build_string (buf), |
7222 | Vobarray, Qcommandp, | |
4328577a KH |
7223 | Qt, Qnil, Qextended_command_history, Qnil, |
7224 | Qnil); | |
284f4730 | 7225 | |
1f5b1641 RS |
7226 | if (STRINGP (function) && XSTRING (function)->size == 0) |
7227 | error ("No command name given"); | |
7228 | ||
1113d9db JB |
7229 | /* Set this_command_keys to the concatenation of saved_keys and |
7230 | function, followed by a RET. */ | |
284f4730 | 7231 | { |
1113d9db | 7232 | struct Lisp_String *str; |
b0f2a7bf | 7233 | Lisp_Object *keys; |
284f4730 | 7234 | int i; |
284f4730 | 7235 | |
1113d9db | 7236 | this_command_key_count = 0; |
6321824f | 7237 | this_single_command_key_start = 0; |
1113d9db | 7238 | |
b0f2a7bf KH |
7239 | keys = XVECTOR (saved_keys)->contents; |
7240 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
7241 | add_command_key (keys[i]); | |
1113d9db JB |
7242 | |
7243 | str = XSTRING (function); | |
7244 | for (i = 0; i < str->size; i++) | |
301738ed | 7245 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 7246 | |
301738ed | 7247 | add_command_key (make_number ('\015')); |
284f4730 JB |
7248 | } |
7249 | ||
7250 | UNGCPRO; | |
7251 | ||
0a7f1fc0 | 7252 | function = Fintern (function, Qnil); |
d8bcf58e | 7253 | current_kboard->Vprefix_arg = prefixarg; |
284f4730 JB |
7254 | this_command = function; |
7255 | ||
6526ab49 RS |
7256 | /* If enabled, show which key runs this command. */ |
7257 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 7258 | && NILP (Vexecuting_macro) |
6526ab49 | 7259 | && SYMBOLP (function)) |
5434fce6 RS |
7260 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
7261 | Qt, Qnil); | |
7262 | else | |
7263 | bindings = Qnil; | |
6526ab49 | 7264 | |
5434fce6 RS |
7265 | value = Qnil; |
7266 | GCPRO2 (bindings, value); | |
7267 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 7268 | |
5434fce6 | 7269 | /* If the command has a key binding, print it now. */ |
3ababa60 | 7270 | if (!NILP (bindings) |
ee112567 KH |
7271 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
7272 | Qmouse_movement))) | |
5434fce6 RS |
7273 | { |
7274 | /* But first wait, and skip the message if there is input. */ | |
7275 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) | |
7276 | ? Vsuggest_key_bindings : make_number (2)), | |
303b5b3f RS |
7277 | Qnil, Qnil)) |
7278 | && ! CONSP (Vunread_command_events)) | |
6526ab49 | 7279 | { |
5434fce6 RS |
7280 | Lisp_Object binding; |
7281 | char *newmessage; | |
7282 | char *oldmessage = echo_area_glyphs; | |
7283 | int oldmessage_len = echo_area_glyphs_length; | |
30c6e062 | 7284 | int oldmultibyte = message_enable_multibyte; |
5434fce6 RS |
7285 | |
7286 | binding = Fkey_description (bindings); | |
7287 | ||
7288 | newmessage | |
7289 | = (char *) alloca (XSYMBOL (function)->name->size | |
301738ed | 7290 | + XSTRING (binding)->size_byte |
5434fce6 | 7291 | + 100); |
3ababa60 | 7292 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 7293 | XSYMBOL (function)->name->data, |
5434fce6 | 7294 | XSTRING (binding)->data); |
301738ed RS |
7295 | message2_nolog (newmessage, |
7296 | strlen (newmessage), | |
7297 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
7298 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
7299 | ? Vsuggest_key_bindings : make_number (2)), | |
7300 | Qnil, Qnil))) | |
a59b172a | 7301 | message2_nolog (oldmessage, oldmessage_len, oldmultibyte); |
6526ab49 RS |
7302 | } |
7303 | } | |
7304 | ||
5434fce6 | 7305 | RETURN_UNGCPRO (value); |
284f4730 | 7306 | } |
6526ab49 RS |
7307 | |
7308 | /* Find the set of keymaps now active. | |
7309 | Store into *MAPS_P a vector holding the various maps | |
7310 | and return the number of them. The vector was malloc'd | |
7311 | and the caller should free it. */ | |
7312 | ||
7313 | int | |
7314 | current_active_maps (maps_p) | |
7315 | Lisp_Object **maps_p; | |
7316 | { | |
7317 | Lisp_Object *tmaps, *maps; | |
7318 | int nmaps; | |
7319 | ||
7320 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
7321 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7322 | { | |
7323 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7324 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
7325 | nmaps = 0; | |
7326 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7327 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7328 | if (!NILP (Voverriding_local_map)) | |
7329 | maps[nmaps++] = Voverriding_local_map; | |
7330 | } | |
7331 | else | |
7332 | { | |
7333 | /* No, so use major and minor mode keymaps. */ | |
7334 | nmaps = current_minor_maps (NULL, &tmaps); | |
7335 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
7336 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
7337 | #ifdef USE_TEXT_PROPERTIES | |
7338 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
7339 | #else | |
7340 | maps[nmaps++] = current_buffer->keymap; | |
7341 | #endif | |
7342 | } | |
7343 | maps[nmaps++] = current_global_map; | |
7344 | ||
7345 | *maps_p = maps; | |
7346 | return nmaps; | |
7347 | } | |
284f4730 | 7348 | \f |
d9d4c147 | 7349 | /* Return nonzero if input events are pending. */ |
284f4730 JB |
7350 | |
7351 | detect_input_pending () | |
7352 | { | |
7353 | if (!input_pending) | |
d9d4c147 KH |
7354 | get_input_pending (&input_pending, 0); |
7355 | ||
7356 | return input_pending; | |
7357 | } | |
7358 | ||
b1878f45 | 7359 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 7360 | |
87dd9b9b RS |
7361 | detect_input_pending_run_timers (do_display) |
7362 | int do_display; | |
d9d4c147 | 7363 | { |
87dd9b9b RS |
7364 | int old_timers_run = timers_run; |
7365 | ||
d9d4c147 KH |
7366 | if (!input_pending) |
7367 | get_input_pending (&input_pending, 1); | |
284f4730 | 7368 | |
87dd9b9b RS |
7369 | if (old_timers_run != timers_run && do_display) |
7370 | redisplay_preserve_echo_area (); | |
7371 | ||
284f4730 JB |
7372 | return input_pending; |
7373 | } | |
7374 | ||
ffd56f97 JB |
7375 | /* This is called in some cases before a possible quit. |
7376 | It cases the next call to detect_input_pending to recompute input_pending. | |
7377 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
7378 | |
7379 | void | |
ffd56f97 JB |
7380 | clear_input_pending () |
7381 | { | |
7382 | input_pending = 0; | |
7383 | } | |
7384 | ||
b1878f45 RS |
7385 | /* Return nonzero if there are pending requeued events. |
7386 | This isn't used yet. The hope is to make wait_reading_process_input | |
7387 | call it, and return return if it runs Lisp code that unreads something. | |
7388 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
7389 | to do in that case. It isn't trivial. */ | |
7390 | ||
7391 | requeued_events_pending_p () | |
7392 | { | |
7393 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
7394 | } | |
7395 | ||
7396 | ||
284f4730 JB |
7397 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
7398 | "T if command input is currently available with no waiting.\n\ | |
7399 | Actually, the value is nil only if we can be sure that no input is available.") | |
7400 | () | |
7401 | { | |
24597608 | 7402 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
7403 | return (Qt); |
7404 | ||
d9d4c147 KH |
7405 | get_input_pending (&input_pending, 1); |
7406 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
7407 | } |
7408 | ||
7409 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 7410 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
7411 | () |
7412 | { | |
5160df46 | 7413 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
7414 | Lisp_Object val; |
7415 | ||
7416 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 7417 | return Fvector (total_keys, keys); |
284f4730 JB |
7418 | else |
7419 | { | |
5160df46 JB |
7420 | val = Fvector (NUM_RECENT_KEYS, keys); |
7421 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
7422 | XVECTOR (val)->contents, |
7423 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 7424 | bcopy (keys, |
284f4730 JB |
7425 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
7426 | recent_keys_index * sizeof (Lisp_Object)); | |
7427 | return val; | |
7428 | } | |
7429 | } | |
7430 | ||
7431 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
7432 | "Return the key sequence that invoked this command.\n\ |
7433 | The value is a string or a vector.") | |
284f4730 JB |
7434 | () |
7435 | { | |
86e5706b RS |
7436 | return make_event_array (this_command_key_count, |
7437 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
7438 | } |
7439 | ||
6321824f RS |
7440 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
7441 | Sthis_single_command_keys, 0, 0, 0, | |
7442 | "Return the key sequence that invoked this command.\n\ | |
7443 | Unlike `this-command-keys', this function's value\n\ | |
7444 | does not include prefix arguments.\n\ | |
7445 | The value is a string or a vector.") | |
7446 | () | |
7447 | { | |
7448 | return make_event_array (this_command_key_count | |
7449 | - this_single_command_key_start, | |
7450 | (XVECTOR (this_command_keys)->contents | |
7451 | + this_single_command_key_start)); | |
7452 | } | |
7453 | ||
71918b75 RS |
7454 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
7455 | Sreset_this_command_lengths, 0, 0, 0, | |
7456 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
7457 | \n\ | |
7458 | `universal-argument-other-key' rereads the event just typed.\n\ | |
7459 | It then gets translated through `function-key-map'.\n\ | |
7460 | The translated event gets included in the echo area and in\n\ | |
7461 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
7462 | That is not right.\n\ | |
7463 | \n\ | |
7464 | Calling this function directs the translated event to replace\n\ | |
7465 | the original event, so that only one version of the event actually\n\ | |
7466 | appears in the echo area and in the value of `this-command-keys.'.") | |
7467 | () | |
7468 | { | |
7469 | before_command_restore_flag = 1; | |
7470 | before_command_key_count_1 = before_command_key_count; | |
7471 | before_command_echo_length_1 = before_command_echo_length; | |
7472 | } | |
7473 | ||
284f4730 JB |
7474 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
7475 | "Return the current depth in recursive edits.") | |
7476 | () | |
7477 | { | |
7478 | Lisp_Object temp; | |
bb9e9bed | 7479 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
7480 | return temp; |
7481 | } | |
7482 | ||
7483 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
7484 | "FOpen dribble file: ", | |
9b2471df RS |
7485 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
7486 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
7487 | (file) |
7488 | Lisp_Object file; | |
7489 | { | |
6cb52def | 7490 | if (dribble) |
284f4730 | 7491 | { |
6cb52def KH |
7492 | fclose (dribble); |
7493 | dribble = 0; | |
284f4730 | 7494 | } |
6cb52def | 7495 | if (!NILP (file)) |
284f4730 JB |
7496 | { |
7497 | file = Fexpand_file_name (file, Qnil); | |
7498 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
7499 | if (dribble == 0) |
7500 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
7501 | } |
7502 | return Qnil; | |
7503 | } | |
7504 | ||
7505 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
7506 | "Discard the contents of the terminal input buffer.\n\ | |
7507 | Also cancel any kbd macro being defined.") | |
7508 | () | |
7509 | { | |
c5fdd383 | 7510 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
7511 | update_mode_lines++; |
7512 | ||
24597608 | 7513 | Vunread_command_events = Qnil; |
86e5706b | 7514 | unread_command_char = -1; |
284f4730 JB |
7515 | |
7516 | discard_tty_input (); | |
7517 | ||
ff0b5f4c JB |
7518 | /* Without the cast, GCC complains that this assignment loses the |
7519 | volatile qualifier of kbd_store_ptr. Is there anything wrong | |
7520 | with that? */ | |
beecf6a1 KH |
7521 | kbd_fetch_ptr = (struct input_event *) kbd_store_ptr; |
7522 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
284f4730 JB |
7523 | input_pending = 0; |
7524 | ||
7525 | return Qnil; | |
7526 | } | |
7527 | \f | |
7528 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
7529 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
7530 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
7531 | control, run a subshell instead.\n\n\ | |
284f4730 | 7532 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
7533 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
7534 | \n\ | |
bbdc2092 RS |
7535 | Before suspending, run the normal hook `suspend-hook'.\n\ |
7536 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
7537 | \n\ |
7538 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 7539 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
7540 | (stuffstring) |
7541 | Lisp_Object stuffstring; | |
7542 | { | |
3a69360c | 7543 | Lisp_Object tem; |
284f4730 JB |
7544 | int count = specpdl_ptr - specpdl; |
7545 | int old_height, old_width; | |
7546 | int width, height; | |
b7d2ebbf | 7547 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
7548 | |
7549 | if (!NILP (stuffstring)) | |
7550 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 7551 | |
1e95ed28 JB |
7552 | /* Run the functions in suspend-hook. */ |
7553 | if (!NILP (Vrun_hooks)) | |
7554 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 7555 | |
b7d2ebbf | 7556 | GCPRO1 (stuffstring); |
ff11dfa1 | 7557 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
7558 | reset_sys_modes (); |
7559 | /* sys_suspend can get an error if it tries to fork a subshell | |
7560 | and the system resources aren't available for that. */ | |
91a0da02 AS |
7561 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
7562 | 0); | |
284f4730 | 7563 | stuff_buffered_input (stuffstring); |
8026024c KH |
7564 | if (cannot_suspend) |
7565 | sys_subshell (); | |
7566 | else | |
7567 | sys_suspend (); | |
284f4730 JB |
7568 | unbind_to (count, Qnil); |
7569 | ||
7570 | /* Check if terminal/window size has changed. | |
7571 | Note that this is not useful when we are running directly | |
7572 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 7573 | get_frame_size (&width, &height); |
284f4730 | 7574 | if (width != old_width || height != old_height) |
f5ea6163 | 7575 | change_frame_size (selected_frame, height, width, 0, 0); |
284f4730 | 7576 | |
1e95ed28 | 7577 | /* Run suspend-resume-hook. */ |
284f4730 JB |
7578 | if (!NILP (Vrun_hooks)) |
7579 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 7580 | |
284f4730 JB |
7581 | UNGCPRO; |
7582 | return Qnil; | |
7583 | } | |
7584 | ||
7585 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 7586 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 7587 | |
07a59269 | 7588 | void |
284f4730 JB |
7589 | stuff_buffered_input (stuffstring) |
7590 | Lisp_Object stuffstring; | |
7591 | { | |
284f4730 | 7592 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 7593 | #ifdef BSD_SYSTEM |
284f4730 | 7594 | #ifndef BSD4_1 |
612b78ef | 7595 | register unsigned char *p; |
612b78ef | 7596 | |
8c18cbfb | 7597 | if (STRINGP (stuffstring)) |
284f4730 JB |
7598 | { |
7599 | register int count; | |
7600 | ||
7601 | p = XSTRING (stuffstring)->data; | |
301738ed | 7602 | count = XSTRING (stuffstring)->size_byte; |
284f4730 JB |
7603 | while (count-- > 0) |
7604 | stuff_char (*p++); | |
7605 | stuff_char ('\n'); | |
7606 | } | |
7607 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 7608 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 7609 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 7610 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 7611 | { |
beecf6a1 KH |
7612 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
7613 | kbd_fetch_ptr = kbd_buffer; | |
7614 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
7615 | stuff_char (kbd_fetch_ptr->code); | |
7616 | kbd_fetch_ptr->kind = no_event; | |
7617 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
7618 | - kbd_buffer] | |
7b4aedb9 | 7619 | = Qnil); |
284f4730 JB |
7620 | } |
7621 | input_pending = 0; | |
7622 | #endif | |
6df54671 | 7623 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
7624 | } |
7625 | \f | |
ffd56f97 JB |
7626 | set_waiting_for_input (time_to_clear) |
7627 | EMACS_TIME *time_to_clear; | |
284f4730 | 7628 | { |
ffd56f97 | 7629 | input_available_clear_time = time_to_clear; |
284f4730 JB |
7630 | |
7631 | /* Tell interrupt_signal to throw back to read_char, */ | |
7632 | waiting_for_input = 1; | |
7633 | ||
7634 | /* If interrupt_signal was called before and buffered a C-g, | |
7635 | make it run again now, to avoid timing error. */ | |
7636 | if (!NILP (Vquit_flag)) | |
7637 | quit_throw_to_read_char (); | |
284f4730 JB |
7638 | } |
7639 | ||
07a59269 | 7640 | void |
284f4730 JB |
7641 | clear_waiting_for_input () |
7642 | { | |
7643 | /* Tell interrupt_signal not to throw back to read_char, */ | |
7644 | waiting_for_input = 0; | |
ffd56f97 | 7645 | input_available_clear_time = 0; |
284f4730 JB |
7646 | } |
7647 | ||
7648 | /* This routine is called at interrupt level in response to C-G. | |
7649 | If interrupt_input, this is the handler for SIGINT. | |
7650 | Otherwise, it is called from kbd_buffer_store_event, | |
7651 | in handling SIGIO or SIGTINT. | |
7652 | ||
7653 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
7654 | immediately throw back to read_char. | |
7655 | ||
7656 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
7657 | This causes eval to throw, when it gets a chance. | |
7658 | If quit-flag is already non-nil, it stops the job right away. */ | |
7659 | ||
7660 | SIGTYPE | |
91c049d4 RS |
7661 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
7662 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
7663 | { |
7664 | char c; | |
7665 | /* Must preserve main program's value of errno. */ | |
7666 | int old_errno = errno; | |
284f4730 | 7667 | |
5970a8cb | 7668 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
7669 | if (!read_socket_hook && NILP (Vwindow_system)) |
7670 | { | |
7671 | /* USG systems forget handlers when they are used; | |
7672 | must reestablish each time */ | |
7673 | signal (SIGINT, interrupt_signal); | |
7674 | signal (SIGQUIT, interrupt_signal); | |
7675 | } | |
284f4730 JB |
7676 | #endif /* USG */ |
7677 | ||
7678 | cancel_echoing (); | |
7679 | ||
31e4e97b EZ |
7680 | if (!NILP (Vquit_flag) |
7681 | && (FRAME_TERMCAP_P (selected_frame) || FRAME_MSDOS_P (selected_frame))) | |
284f4730 | 7682 | { |
31e4e97b EZ |
7683 | /* If SIGINT isn't blocked, don't let us be interrupted by |
7684 | another SIGINT, it might be harmful due to non-reentrancy | |
7685 | in I/O functions. */ | |
7686 | sigblock (sigmask (SIGINT)); | |
7687 | ||
284f4730 JB |
7688 | fflush (stdout); |
7689 | reset_sys_modes (); | |
31e4e97b | 7690 | |
284f4730 JB |
7691 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
7692 | /* | |
7693 | * On systems which can suspend the current process and return to the original | |
7694 | * shell, this command causes the user to end up back at the shell. | |
7695 | * The "Auto-save" and "Abort" questions are not asked until | |
7696 | * the user elects to return to emacs, at which point he can save the current | |
7697 | * job and either dump core or continue. | |
7698 | */ | |
7699 | sys_suspend (); | |
7700 | #else | |
7701 | #ifdef VMS | |
7702 | if (sys_suspend () == -1) | |
7703 | { | |
7704 | printf ("Not running as a subprocess;\n"); | |
7705 | printf ("you can continue or abort.\n"); | |
7706 | } | |
7707 | #else /* not VMS */ | |
7708 | /* Perhaps should really fork an inferior shell? | |
7709 | But that would not provide any way to get back | |
7710 | to the original shell, ever. */ | |
7711 | printf ("No support for stopping a process on this operating system;\n"); | |
7712 | printf ("you can continue or abort.\n"); | |
7713 | #endif /* not VMS */ | |
7714 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
7715 | #ifdef MSDOS |
7716 | /* We must remain inside the screen area when the internal terminal | |
7717 | is used. Note that [Enter] is not echoed by dos. */ | |
7718 | cursor_to (0, 0); | |
7719 | #endif | |
118d6ca9 RS |
7720 | /* It doesn't work to autosave while GC is in progress; |
7721 | the code used for auto-saving doesn't cope with the mark bit. */ | |
7722 | if (!gc_in_progress) | |
9fd7d808 | 7723 | { |
118d6ca9 RS |
7724 | printf ("Auto-save? (y or n) "); |
7725 | fflush (stdout); | |
7726 | if (((c = getchar ()) & ~040) == 'Y') | |
7727 | { | |
7728 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 7729 | #ifdef MSDOS |
118d6ca9 | 7730 | printf ("\r\nAuto-save done"); |
80e4aa30 | 7731 | #else /* not MSDOS */ |
118d6ca9 | 7732 | printf ("Auto-save done\n"); |
80e4aa30 | 7733 | #endif /* not MSDOS */ |
118d6ca9 RS |
7734 | } |
7735 | while (c != '\n') c = getchar (); | |
9fd7d808 | 7736 | } |
118d6ca9 RS |
7737 | else |
7738 | { | |
7739 | /* During GC, it must be safe to reenable quitting again. */ | |
7740 | Vinhibit_quit = Qnil; | |
7741 | #ifdef MSDOS | |
7742 | printf ("\r\n"); | |
7743 | #endif /* not MSDOS */ | |
7744 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
7745 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
7746 | fflush (stdout); | |
7747 | } | |
7748 | ||
80e4aa30 RS |
7749 | #ifdef MSDOS |
7750 | printf ("\r\nAbort? (y or n) "); | |
7751 | #else /* not MSDOS */ | |
284f4730 JB |
7752 | #ifdef VMS |
7753 | printf ("Abort (and enter debugger)? (y or n) "); | |
7754 | #else /* not VMS */ | |
7755 | printf ("Abort (and dump core)? (y or n) "); | |
7756 | #endif /* not VMS */ | |
80e4aa30 | 7757 | #endif /* not MSDOS */ |
284f4730 JB |
7758 | fflush (stdout); |
7759 | if (((c = getchar ()) & ~040) == 'Y') | |
7760 | abort (); | |
7761 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
7762 | #ifdef MSDOS |
7763 | printf ("\r\nContinuing...\r\n"); | |
7764 | #else /* not MSDOS */ | |
284f4730 | 7765 | printf ("Continuing...\n"); |
80e4aa30 | 7766 | #endif /* not MSDOS */ |
284f4730 JB |
7767 | fflush (stdout); |
7768 | init_sys_modes (); | |
31e4e97b | 7769 | sigfree (); |
284f4730 JB |
7770 | } |
7771 | else | |
7772 | { | |
7773 | /* If executing a function that wants to be interrupted out of | |
7774 | and the user has not deferred quitting by binding `inhibit-quit' | |
7775 | then quit right away. */ | |
7776 | if (immediate_quit && NILP (Vinhibit_quit)) | |
7777 | { | |
7778 | immediate_quit = 0; | |
7779 | sigfree (); | |
7780 | Fsignal (Qquit, Qnil); | |
7781 | } | |
7782 | else | |
7783 | /* Else request quit when it's safe */ | |
7784 | Vquit_flag = Qt; | |
7785 | } | |
7786 | ||
7787 | if (waiting_for_input && !echoing) | |
7788 | quit_throw_to_read_char (); | |
7789 | ||
7790 | errno = old_errno; | |
7791 | } | |
7792 | ||
7793 | /* Handle a C-g by making read_char return C-g. */ | |
7794 | ||
07a59269 | 7795 | void |
284f4730 JB |
7796 | quit_throw_to_read_char () |
7797 | { | |
7798 | quit_error_check (); | |
7799 | sigfree (); | |
7800 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 7801 | clear_waiting_for_input (); |
284f4730 JB |
7802 | input_pending = 0; |
7803 | ||
24597608 | 7804 | Vunread_command_events = Qnil; |
86e5706b | 7805 | unread_command_char = -1; |
284f4730 | 7806 | |
087feab3 RS |
7807 | #if 0 /* Currently, sit_for is called from read_char without turning |
7808 | off polling. And that can call set_waiting_for_input. | |
7809 | It seems to be harmless. */ | |
e6b01c14 JB |
7810 | #ifdef POLL_FOR_INPUT |
7811 | /* May be > 1 if in recursive minibuffer. */ | |
7812 | if (poll_suppress_count == 0) | |
7813 | abort (); | |
7814 | #endif | |
087feab3 | 7815 | #endif |
4c52b668 KH |
7816 | if (FRAMEP (internal_last_event_frame) |
7817 | && XFRAME (internal_last_event_frame) != selected_frame) | |
719191cf RS |
7818 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
7819 | Qnil, 0); | |
e6b01c14 | 7820 | |
284f4730 JB |
7821 | _longjmp (getcjmp, 1); |
7822 | } | |
7823 | \f | |
7824 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
7825 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
7826 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
7827 | nil means use CBREAK mode.\n\ | |
7828 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 7829 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
7830 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
7831 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
7832 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
7833 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
7834 | See also `current-input-mode'.") | |
284f4730 JB |
7835 | (interrupt, flow, meta, quit) |
7836 | Lisp_Object interrupt, flow, meta, quit; | |
7837 | { | |
7838 | if (!NILP (quit) | |
8c18cbfb | 7839 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
7840 | error ("set-input-mode: QUIT must be an ASCII character"); |
7841 | ||
7842 | #ifdef POLL_FOR_INPUT | |
7843 | stop_polling (); | |
7844 | #endif | |
284f4730 | 7845 | |
07de30b9 | 7846 | #ifndef DOS_NT |
2ee250ec | 7847 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 7848 | reset_sys_modes (); |
2ee250ec RS |
7849 | #endif |
7850 | ||
284f4730 JB |
7851 | #ifdef SIGIO |
7852 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 7853 | if (read_socket_hook) |
9a0f60bb KH |
7854 | { |
7855 | /* When using X, don't give the user a real choice, | |
7856 | because we haven't implemented the mechanisms to support it. */ | |
7857 | #ifdef NO_SOCK_SIGIO | |
7858 | interrupt_input = 0; | |
7859 | #else /* not NO_SOCK_SIGIO */ | |
7860 | interrupt_input = 1; | |
284f4730 | 7861 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
7862 | } |
7863 | else | |
284f4730 JB |
7864 | interrupt_input = !NILP (interrupt); |
7865 | #else /* not SIGIO */ | |
7866 | interrupt_input = 0; | |
7867 | #endif /* not SIGIO */ | |
9a0f60bb | 7868 | |
284f4730 JB |
7869 | /* Our VMS input only works by interrupts, as of now. */ |
7870 | #ifdef VMS | |
7871 | interrupt_input = 1; | |
7872 | #endif | |
9a0f60bb | 7873 | |
284f4730 | 7874 | flow_control = !NILP (flow); |
b04904fb RS |
7875 | if (NILP (meta)) |
7876 | meta_key = 0; | |
7877 | else if (EQ (meta, Qt)) | |
7878 | meta_key = 1; | |
7879 | else | |
7880 | meta_key = 2; | |
284f4730 JB |
7881 | if (!NILP (quit)) |
7882 | /* Don't let this value be out of range. */ | |
7883 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
7884 | ||
07de30b9 | 7885 | #ifndef DOS_NT |
284f4730 | 7886 | init_sys_modes (); |
2ee250ec | 7887 | #endif |
34f04431 RS |
7888 | |
7889 | #ifdef POLL_FOR_INPUT | |
7890 | poll_suppress_count = 1; | |
7891 | start_polling (); | |
7892 | #endif | |
284f4730 JB |
7893 | return Qnil; |
7894 | } | |
80645119 JB |
7895 | |
7896 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
7897 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
7898 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
7899 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
7900 | nil, Emacs is using CBREAK mode.\n\ | |
7901 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
7902 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
7903 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
7904 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
7905 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
7906 | all 8 bits as the character code.\n\ | |
80645119 JB |
7907 | QUIT is the character Emacs currently uses to quit.\n\ |
7908 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 7909 | `set-input-mode'.") |
80645119 JB |
7910 | () |
7911 | { | |
7912 | Lisp_Object val[4]; | |
7913 | ||
7914 | val[0] = interrupt_input ? Qt : Qnil; | |
7915 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 7916 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 7917 | XSETFASTINT (val[3], quit_char); |
80645119 | 7918 | |
bf673a7a | 7919 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
7920 | } |
7921 | ||
284f4730 | 7922 | \f |
6c6083a9 | 7923 | /* |
c5fdd383 | 7924 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
7925 | */ |
7926 | void | |
c5fdd383 KH |
7927 | init_kboard (kb) |
7928 | KBOARD *kb; | |
6c6083a9 | 7929 | { |
217258d5 | 7930 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 7931 | kb->Vlast_command = Qnil; |
d8bcf58e | 7932 | kb->Vprefix_arg = Qnil; |
c5fdd383 KH |
7933 | kb->kbd_queue = Qnil; |
7934 | kb->kbd_queue_has_data = 0; | |
7935 | kb->immediate_echo = 0; | |
7936 | kb->echoptr = kb->echobuf; | |
7937 | kb->echo_after_prompt = -1; | |
7938 | kb->kbd_macro_buffer = 0; | |
7939 | kb->kbd_macro_bufsize = 0; | |
7940 | kb->defining_kbd_macro = Qnil; | |
7941 | kb->Vlast_kbd_macro = Qnil; | |
7942 | kb->reference_count = 0; | |
7c97ffdc | 7943 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 7944 | kb->system_key_syms = Qnil; |
9ba47203 | 7945 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
7946 | } |
7947 | ||
7948 | /* | |
c5fdd383 | 7949 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 7950 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
7951 | * it a second time. |
7952 | */ | |
e50b8090 | 7953 | static void |
c5fdd383 KH |
7954 | wipe_kboard (kb) |
7955 | KBOARD *kb; | |
6c6083a9 | 7956 | { |
c5fdd383 KH |
7957 | if (kb->kbd_macro_buffer) |
7958 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
7959 | } |
7960 | ||
e50b8090 KH |
7961 | #ifdef MULTI_KBOARD |
7962 | void | |
7963 | delete_kboard (kb) | |
7964 | KBOARD *kb; | |
7965 | { | |
7966 | KBOARD **kbp; | |
7967 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
7968 | if (*kbp == NULL) | |
7969 | abort (); | |
7970 | *kbp = kb->next_kboard; | |
7971 | wipe_kboard (kb); | |
7972 | xfree (kb); | |
7973 | } | |
7974 | #endif | |
7975 | ||
284f4730 JB |
7976 | init_keyboard () |
7977 | { | |
284f4730 JB |
7978 | /* This is correct before outermost invocation of the editor loop */ |
7979 | command_loop_level = -1; | |
7980 | immediate_quit = 0; | |
7981 | quit_char = Ctl ('g'); | |
24597608 | 7982 | Vunread_command_events = Qnil; |
86e5706b | 7983 | unread_command_char = -1; |
87dd9b9b | 7984 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 7985 | total_keys = 0; |
9deb415a | 7986 | recent_keys_index = 0; |
beecf6a1 KH |
7987 | kbd_fetch_ptr = kbd_buffer; |
7988 | kbd_store_ptr = kbd_buffer; | |
7989 | kbd_buffer_frame_or_window | |
7990 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 7991 | #ifdef HAVE_MOUSE |
a9d77f1f | 7992 | do_mouse_tracking = Qnil; |
2eb6bfbe | 7993 | #endif |
284f4730 JB |
7994 | input_pending = 0; |
7995 | ||
4c52b668 KH |
7996 | /* This means that command_loop_1 won't try to select anything the first |
7997 | time through. */ | |
7998 | internal_last_event_frame = Qnil; | |
7999 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 8000 | |
c5fdd383 | 8001 | #ifdef MULTI_KBOARD |
aaca43a1 | 8002 | current_kboard = initial_kboard; |
6c6083a9 | 8003 | #endif |
aaca43a1 | 8004 | wipe_kboard (current_kboard); |
c5fdd383 | 8005 | init_kboard (current_kboard); |
07d2b8de | 8006 | |
beecf6a1 KH |
8007 | if (initialized) |
8008 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
8009 | ||
8010 | kbd_buffer_frame_or_window | |
8011 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 8012 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
8013 | { |
8014 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 8015 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
8016 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
8017 | SIGQUIT and we can't tell which one it will give us. */ | |
8018 | signal (SIGQUIT, interrupt_signal); | |
8019 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 8020 | } |
284f4730 JB |
8021 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
8022 | #ifdef SIGIO | |
7a80a6f6 RS |
8023 | if (!noninteractive) |
8024 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 8025 | #endif /* SIGIO */ |
284f4730 JB |
8026 | |
8027 | /* Use interrupt input by default, if it works and noninterrupt input | |
8028 | has deficiencies. */ | |
8029 | ||
8030 | #ifdef INTERRUPT_INPUT | |
8031 | interrupt_input = 1; | |
8032 | #else | |
8033 | interrupt_input = 0; | |
8034 | #endif | |
8035 | ||
8036 | /* Our VMS input only works by interrupts, as of now. */ | |
8037 | #ifdef VMS | |
8038 | interrupt_input = 1; | |
8039 | #endif | |
8040 | ||
8041 | sigfree (); | |
8042 | dribble = 0; | |
8043 | ||
8044 | if (keyboard_init_hook) | |
8045 | (*keyboard_init_hook) (); | |
8046 | ||
8047 | #ifdef POLL_FOR_INPUT | |
8048 | poll_suppress_count = 1; | |
8049 | start_polling (); | |
8050 | #endif | |
8051 | } | |
8052 | ||
df0f2ba1 | 8053 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
8054 | event header symbols and put properties on them. */ |
8055 | struct event_head { | |
8056 | Lisp_Object *var; | |
8057 | char *name; | |
8058 | Lisp_Object *kind; | |
8059 | }; | |
8060 | ||
8061 | struct event_head head_table[] = { | |
7b4aedb9 | 8062 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 8063 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 8064 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 8065 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
8066 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
8067 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
8068 | }; |
8069 | ||
8070 | syms_of_keyboard () | |
8071 | { | |
d925fb39 RS |
8072 | Qtimer_event_handler = intern ("timer-event-handler"); |
8073 | staticpro (&Qtimer_event_handler); | |
8074 | ||
2e894dab RS |
8075 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
8076 | staticpro (&Qdisabled_command_hook); | |
8077 | ||
284f4730 JB |
8078 | Qself_insert_command = intern ("self-insert-command"); |
8079 | staticpro (&Qself_insert_command); | |
8080 | ||
8081 | Qforward_char = intern ("forward-char"); | |
8082 | staticpro (&Qforward_char); | |
8083 | ||
8084 | Qbackward_char = intern ("backward-char"); | |
8085 | staticpro (&Qbackward_char); | |
8086 | ||
8087 | Qdisabled = intern ("disabled"); | |
8088 | staticpro (&Qdisabled); | |
8089 | ||
e58aa385 RS |
8090 | Qundefined = intern ("undefined"); |
8091 | staticpro (&Qundefined); | |
8092 | ||
86e5706b RS |
8093 | Qpre_command_hook = intern ("pre-command-hook"); |
8094 | staticpro (&Qpre_command_hook); | |
8095 | ||
8096 | Qpost_command_hook = intern ("post-command-hook"); | |
8097 | staticpro (&Qpost_command_hook); | |
8098 | ||
59aadc81 RS |
8099 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
8100 | staticpro (&Qpost_command_idle_hook); | |
8101 | ||
3ef14e46 RS |
8102 | Qdeferred_action_function = intern ("deferred-action-function"); |
8103 | staticpro (&Qdeferred_action_function); | |
8104 | ||
40932d1a RS |
8105 | Qcommand_hook_internal = intern ("command-hook-internal"); |
8106 | staticpro (&Qcommand_hook_internal); | |
8107 | ||
284f4730 JB |
8108 | Qfunction_key = intern ("function-key"); |
8109 | staticpro (&Qfunction_key); | |
13b5e56c | 8110 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 8111 | staticpro (&Qmouse_click); |
07de30b9 GV |
8112 | #ifdef WINDOWSNT |
8113 | Qmouse_wheel = intern ("mouse-wheel"); | |
8114 | staticpro (&Qmouse_wheel); | |
8115 | #endif | |
284f4730 | 8116 | |
598a9fa7 JB |
8117 | Qmenu_enable = intern ("menu-enable"); |
8118 | staticpro (&Qmenu_enable); | |
8119 | ||
284f4730 JB |
8120 | Qmode_line = intern ("mode-line"); |
8121 | staticpro (&Qmode_line); | |
e5d77022 JB |
8122 | Qvertical_line = intern ("vertical-line"); |
8123 | staticpro (&Qvertical_line); | |
3c370943 JB |
8124 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
8125 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
8126 | Qmenu_bar = intern ("menu-bar"); |
8127 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
8128 | |
8129 | Qabove_handle = intern ("above-handle"); | |
8130 | staticpro (&Qabove_handle); | |
8131 | Qhandle = intern ("handle"); | |
8132 | staticpro (&Qhandle); | |
8133 | Qbelow_handle = intern ("below-handle"); | |
8134 | staticpro (&Qbelow_handle); | |
db08707d RS |
8135 | Qup = intern ("up"); |
8136 | staticpro (&Qup); | |
8137 | Qdown = intern ("down"); | |
8138 | staticpro (&Qdown); | |
284f4730 | 8139 | |
cd21b839 | 8140 | Qevent_kind = intern ("event-kind"); |
284f4730 | 8141 | staticpro (&Qevent_kind); |
88cb0656 JB |
8142 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
8143 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
8144 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
8145 | staticpro (&Qevent_symbol_element_mask); | |
8146 | Qmodifier_cache = intern ("modifier-cache"); | |
8147 | staticpro (&Qmodifier_cache); | |
284f4730 | 8148 | |
48e416d4 RS |
8149 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
8150 | staticpro (&Qrecompute_lucid_menubar); | |
8151 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
8152 | staticpro (&Qactivate_menubar_hook); | |
8153 | ||
f4eef8b4 RS |
8154 | Qpolling_period = intern ("polling-period"); |
8155 | staticpro (&Qpolling_period); | |
8156 | ||
284f4730 JB |
8157 | { |
8158 | struct event_head *p; | |
8159 | ||
8160 | for (p = head_table; | |
8161 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
8162 | p++) | |
8163 | { | |
8164 | *p->var = intern (p->name); | |
8165 | staticpro (p->var); | |
8166 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 8167 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
8168 | } |
8169 | } | |
8170 | ||
7b4aedb9 JB |
8171 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
8172 | staticpro (&button_down_location); | |
88cb0656 JB |
8173 | |
8174 | { | |
8175 | int i; | |
8176 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
8177 | ||
8178 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
8179 | for (i = 0; i < len; i++) | |
86e5706b RS |
8180 | if (modifier_names[i]) |
8181 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
8182 | staticpro (&modifier_symbols); |
8183 | } | |
8184 | ||
9deb415a JB |
8185 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
8186 | staticpro (&recent_keys); | |
8187 | ||
6569cc8d | 8188 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 8189 | staticpro (&this_command_keys); |
6569cc8d | 8190 | |
03b4122a BF |
8191 | Qextended_command_history = intern ("extended-command-history"); |
8192 | Fset (Qextended_command_history, Qnil); | |
8193 | staticpro (&Qextended_command_history); | |
8194 | ||
beecf6a1 KH |
8195 | kbd_buffer_frame_or_window |
8196 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
8197 | staticpro (&kbd_buffer_frame_or_window); | |
8198 | ||
24597608 RS |
8199 | accent_key_syms = Qnil; |
8200 | staticpro (&accent_key_syms); | |
8201 | ||
284f4730 JB |
8202 | func_key_syms = Qnil; |
8203 | staticpro (&func_key_syms); | |
8204 | ||
8205 | mouse_syms = Qnil; | |
8206 | staticpro (&mouse_syms); | |
8207 | ||
07de30b9 GV |
8208 | #ifdef WINDOWSNT |
8209 | mouse_wheel_syms = Qnil; | |
8210 | staticpro (&mouse_wheel_syms); | |
8211 | #endif | |
8212 | ||
cd21b839 JB |
8213 | unread_switch_frame = Qnil; |
8214 | staticpro (&unread_switch_frame); | |
8215 | ||
fe412364 EN |
8216 | internal_last_event_frame = Qnil; |
8217 | staticpro (&internal_last_event_frame); | |
8218 | ||
8219 | read_key_sequence_cmd = Qnil; | |
8220 | staticpro (&read_key_sequence_cmd); | |
8221 | ||
a1706c30 | 8222 | defsubr (&Sevent_convert_list); |
284f4730 JB |
8223 | defsubr (&Sread_key_sequence); |
8224 | defsubr (&Srecursive_edit); | |
2eb6bfbe | 8225 | #ifdef HAVE_MOUSE |
284f4730 | 8226 | defsubr (&Strack_mouse); |
2eb6bfbe | 8227 | #endif |
284f4730 JB |
8228 | defsubr (&Sinput_pending_p); |
8229 | defsubr (&Scommand_execute); | |
8230 | defsubr (&Srecent_keys); | |
8231 | defsubr (&Sthis_command_keys); | |
6321824f | 8232 | defsubr (&Sthis_single_command_keys); |
71918b75 | 8233 | defsubr (&Sreset_this_command_lengths); |
284f4730 JB |
8234 | defsubr (&Ssuspend_emacs); |
8235 | defsubr (&Sabort_recursive_edit); | |
8236 | defsubr (&Sexit_recursive_edit); | |
8237 | defsubr (&Srecursion_depth); | |
8238 | defsubr (&Stop_level); | |
8239 | defsubr (&Sdiscard_input); | |
8240 | defsubr (&Sopen_dribble_file); | |
8241 | defsubr (&Sset_input_mode); | |
80645119 | 8242 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
8243 | defsubr (&Sexecute_extended_command); |
8244 | ||
284f4730 | 8245 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
8246 | "Last input event that was part of a command."); |
8247 | ||
186cf719 | 8248 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 8249 | "Last input event that was part of a command."); |
284f4730 | 8250 | |
7d6de002 | 8251 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 8252 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
8253 | Mouse menus give back keys that don't look like mouse events;\n\ |
8254 | this variable holds the actual mouse event that led to the menu,\n\ | |
8255 | so that you can determine whether the command was run by mouse or not."); | |
8256 | ||
284f4730 | 8257 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
8258 | "Last input event."); |
8259 | ||
186cf719 | 8260 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 8261 | "Last input event."); |
284f4730 | 8262 | |
24597608 | 8263 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
1c07d0a6 | 8264 | "List of objects to be read as next command input events."); |
284f4730 | 8265 | |
86e5706b RS |
8266 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
8267 | "If not -1, an object to be read as next command input event."); | |
8268 | ||
284f4730 JB |
8269 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
8270 | "Meta-prefix character code. Meta-foo as command input\n\ | |
8271 | turns into this character followed by foo."); | |
18cd2eeb | 8272 | XSETINT (meta_prefix_char, 033); |
284f4730 | 8273 | |
6c7178b9 | 8274 | DEFVAR_KBOARD ("last-command", Vlast_command, |
284f4730 JB |
8275 | "The last command executed. Normally a symbol with a function definition,\n\ |
8276 | but can be whatever was found in the keymap, or whatever the variable\n\ | |
18f29056 RS |
8277 | `this-command' was set to by that command.\n\ |
8278 | \n\ | |
8279 | The value `mode-exit' is special; it means that the previous command\n\ | |
8280 | read an event that told it to exit, and it did so and unread that event.\n\ | |
8281 | In other words, the present command is the event that made the previous\n\ | |
8282 | command exit.\n\ | |
8283 | \n\ | |
8284 | The value `kill-region' is special; it means that the previous command\n\ | |
8285 | was a kill command."); | |
284f4730 JB |
8286 | |
8287 | DEFVAR_LISP ("this-command", &this_command, | |
8288 | "The command now being executed.\n\ | |
8289 | The command can set this variable; whatever is put here\n\ | |
8290 | will be in `last-command' during the following command."); | |
8291 | this_command = Qnil; | |
8292 | ||
8293 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
8294 | "*Number of keyboard input characters between auto-saves.\n\ | |
8295 | Zero means disable autosaving due to number of characters typed."); | |
8296 | auto_save_interval = 300; | |
8297 | ||
8298 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
8299 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
8300 | Zero or nil means disable auto-saving due to idleness.\n\ |
8301 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 8302 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 8303 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
8304 | |
8305 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
8306 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
8307 | echo_keystrokes = 1; | |
8308 | ||
8309 | DEFVAR_INT ("polling-period", &polling_period, | |
8310 | "*Interval between polling for input during Lisp execution.\n\ | |
8311 | The reason for polling is to make C-g work to stop a running program.\n\ | |
8312 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
8313 | Polling is automatically disabled in all other cases."); | |
8314 | polling_period = 2; | |
df0f2ba1 | 8315 | |
564dc952 | 8316 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 8317 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
8318 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
8319 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 8320 | by position only."); |
aab06933 | 8321 | Vdouble_click_time = make_number (500); |
fbcd35bd | 8322 | |
03361bcc RS |
8323 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
8324 | "*Non-nil means inhibit local map menu bar menus."); | |
8325 | inhibit_local_menu_bar_menus = 0; | |
8326 | ||
284f4730 | 8327 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 8328 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
8329 | This includes key sequences read from keyboard macros.\n\ |
8330 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
8331 | num_input_keys = 0; |
8332 | ||
c43b1734 RS |
8333 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
8334 | "Number of input events read from the keyboard so far.\n\ | |
8335 | This does not include events generated by keyboard macros."); | |
8336 | num_nonmacro_input_events = 0; | |
fa90970d | 8337 | |
4c52b668 KH |
8338 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
8339 | "The frame in which the most recently read event occurred.\n\ | |
8340 | If the last event came from a keyboard macro, this is set to `macro'."); | |
8341 | Vlast_event_frame = Qnil; | |
8342 | ||
fa90970d RS |
8343 | /* This variable is set up in sysdep.c. */ |
8344 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
8345 | "The ERASE character as set by the user with stty."); | |
8346 | ||
7e85b935 | 8347 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
8348 | "Character to recognize as meaning Help.\n\ |
8349 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
8350 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 8351 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 8352 | |
ecb7cb34 KH |
8353 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
8354 | "List of input events to recognize as meaning Help.\n\ | |
8355 | These work just like the value of `help-char' (see that)."); | |
8356 | Vhelp_event_list = Qnil; | |
8357 | ||
284f4730 | 8358 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 8359 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
8360 | If the form returns a string, that string is displayed.\n\ |
8361 | If `help-form' is nil, the help char is not recognized."); | |
8362 | Vhelp_form = Qnil; | |
8363 | ||
7e85b935 RS |
8364 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
8365 | "Command to run when `help-char' character follows a prefix key.\n\ | |
8366 | This command is used only when there is no actual binding\n\ | |
8367 | for that character after that prefix key."); | |
8368 | Vprefix_help_command = Qnil; | |
8369 | ||
284f4730 JB |
8370 | DEFVAR_LISP ("top-level", &Vtop_level, |
8371 | "Form to evaluate when Emacs starts up.\n\ | |
8372 | Useful to set before you dump a modified Emacs."); | |
8373 | Vtop_level = Qnil; | |
8374 | ||
8375 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 8376 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 8377 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
8378 | The value may be a string, a vector, or a char-table.\n\ |
8379 | If it is a string or vector of length N,\n\ | |
8380 | character codes N and up are untranslated.\n\ | |
8381 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
8382 | Vkeyboard_translate_table = Qnil; |
8383 | ||
8026024c KH |
8384 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
8385 | "Non-nil means to always spawn a subshell instead of suspending,\n\ | |
8386 | even if the operating system has support for stopping a process."); | |
8387 | cannot_suspend = 0; | |
8388 | ||
284f4730 | 8389 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 8390 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 8391 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
8392 | for elements that have prompt strings.\n\ |
8393 | The menu is displayed on the screen\n\ | |
8394 | if X menus were enabled at configuration\n\ | |
8395 | time and the previous event was a mouse click prefix key.\n\ | |
8396 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
8397 | menu_prompting = 1; |
8398 | ||
8399 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
8400 | "Character to see next line of menu prompt.\n\ | |
8401 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 8402 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
8403 | |
8404 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
8405 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
8406 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
8407 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 8408 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
8409 | all input characters will have the control modifier applied to them.\n\ |
8410 | \n\ | |
9d9f56dd | 8411 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 8412 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 8413 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 8414 | cancels any modification."); |
9fa4395d | 8415 | extra_keyboard_modifiers = 0; |
86e5706b RS |
8416 | |
8417 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
8418 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
8419 | The command loop sets this to nil before each command,\n\ | |
8420 | and tests the value when the command returns.\n\ | |
8421 | Buffer modification stores t in this variable."); | |
8422 | Vdeactivate_mark = Qnil; | |
8423 | ||
b0f2a7bf KH |
8424 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
8425 | "Temporary storage of pre-command-hook or post-command-hook."); | |
8426 | Vcommand_hook_internal = Qnil; | |
8427 | ||
86e5706b | 8428 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 8429 | "Normal hook run before each command is executed.\n\ |
59aadc81 | 8430 | Errors running the hook are caught and ignored."); |
86e5706b RS |
8431 | Vpre_command_hook = Qnil; |
8432 | ||
8433 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 8434 | "Normal hook run after each command is executed.\n\ |
59aadc81 | 8435 | Errors running the hook are caught and ignored."); |
86e5706b | 8436 | Vpost_command_hook = Qnil; |
48e416d4 | 8437 | |
59aadc81 RS |
8438 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
8439 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
8440 | Errors running the hook are caught and ignored.\n\ |
8441 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
8442 | Vpost_command_idle_hook = Qnil; |
8443 | ||
8444 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 8445 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
8446 | This is measured in microseconds."); |
8447 | post_command_idle_delay = 100000; | |
8448 | ||
cdb9d665 RS |
8449 | #if 0 |
8450 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
8451 | "Normal hook run when clearing the echo area."); | |
8452 | #endif | |
8453 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
8454 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
8455 | ||
48e416d4 RS |
8456 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
8457 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
8458 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 8459 | |
9f9c0e27 RS |
8460 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
8461 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 8462 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 8463 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 8464 | |
217258d5 KH |
8465 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
8466 | Voverriding_terminal_local_map, | |
779b34df | 8467 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 8468 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
8469 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
8470 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
8471 | set up a different keymap for reading the next command."); | |
217258d5 | 8472 | |
9dd3131c RS |
8473 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
8474 | "Keymap that overrides all other local keymaps.\n\ | |
8475 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
8476 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
8477 | Voverriding_local_map = Qnil; | |
8478 | ||
d0a49716 RS |
8479 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
8480 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
8481 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
8482 | and the minor mode maps regardless of `overriding-local-map'."); | |
8483 | Voverriding_local_map_menu_flag = Qnil; | |
8484 | ||
7f07d5ca RS |
8485 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
8486 | "Keymap defining bindings for special events to execute at low level."); | |
8487 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
8488 | ||
71edead1 | 8489 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 8490 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 8491 | |
7c97ffdc | 8492 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 8493 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 8494 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 8495 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 8496 | and SYMBOL is its name."); |
8a792f3a RS |
8497 | |
8498 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
8499 | "List of deferred actions to be performed at a later time.\n\ | |
8500 | The precise format isn't relevant here; we just check whether it is nil."); | |
8501 | Vdeferred_action_list = Qnil; | |
8502 | ||
8503 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
8504 | "Function to call to handle deferred actions, after each command.\n\ | |
8505 | This function is called with no arguments after each command\n\ | |
8506 | whenever `deferred-action-list' is non-nil."); | |
8507 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
8508 | |
8509 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
8510 | "Non-nil means show the equivalent key-binding when M-x command has one.\n\ | |
8511 | The value can be a length of time to show the message for.\n\ | |
8512 | If the value is non-nil and not a number, we wait 2 seconds."); | |
8513 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 8514 | |
c04cbc3b | 8515 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 8516 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 8517 | Vtimer_list = Qnil; |
d9d4c147 KH |
8518 | |
8519 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
8520 | "List of active idle-time timers in order of increasing time"); | |
8521 | Vtimer_idle_list = Qnil; | |
284f4730 JB |
8522 | } |
8523 | ||
8524 | keys_of_keyboard () | |
8525 | { | |
8526 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
8527 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
8528 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
8529 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
8530 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
8531 | |
8532 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
8533 | "handle-delete-frame"); | |
8534 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
8535 | "ignore-event"); | |
8536 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
8537 | "ignore-event"); | |
284f4730 | 8538 | } |