Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
0d882d52 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95 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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* Allow config.h to undefine symbols found here. */ | |
21 | #include <signal.h> | |
22 | ||
18160b98 | 23 | #include <config.h> |
284f4730 | 24 | #include <stdio.h> |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
27 | #include "lisp.h" | |
28 | #include "termhooks.h" | |
29 | #include "macros.h" | |
ff11dfa1 | 30 | #include "frame.h" |
284f4730 JB |
31 | #include "window.h" |
32 | #include "commands.h" | |
33 | #include "buffer.h" | |
34 | #include "disptab.h" | |
f4255cd1 | 35 | #include "dispextern.h" |
284f4730 | 36 | #include "keyboard.h" |
497ba7a1 | 37 | #include "intervals.h" |
9ac0d9e0 | 38 | #include "blockinput.h" |
284f4730 JB |
39 | #include <setjmp.h> |
40 | #include <errno.h> | |
41 | ||
80e4aa30 RS |
42 | #ifdef MSDOS |
43 | #include "msdos.h" | |
44 | #include <time.h> | |
45 | #else /* not MSDOS */ | |
284f4730 JB |
46 | #ifndef VMS |
47 | #include <sys/ioctl.h> | |
284f4730 | 48 | #endif |
80e4aa30 | 49 | #endif /* not MSDOS */ |
284f4730 | 50 | |
52baf19e | 51 | #include "syssignal.h" |
6ef5b54f | 52 | #include "systty.h" |
52baf19e | 53 | |
c5e3b6c5 RS |
54 | /* This is to get the definitions of the XK_ symbols. */ |
55 | #ifdef HAVE_X_WINDOWS | |
56 | #include "xterm.h" | |
57 | #endif | |
58 | ||
0c2611c5 RS |
59 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
60 | #include "systime.h" | |
61 | ||
52baf19e JB |
62 | extern int errno; |
63 | ||
9ac0d9e0 JB |
64 | /* Variables for blockinput.h: */ |
65 | ||
66 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 67 | int interrupt_input_blocked; |
9ac0d9e0 JB |
68 | |
69 | /* Nonzero means an input interrupt has arrived | |
70 | during the current critical section. */ | |
63927c41 | 71 | int interrupt_input_pending; |
9ac0d9e0 JB |
72 | |
73 | ||
437f6112 RS |
74 | /* File descriptor to use for input. */ |
75 | extern int input_fd; | |
284f4730 | 76 | |
bcce3e02 | 77 | #ifdef HAVE_X_WINDOWS |
284f4730 JB |
78 | /* Make all keyboard buffers much bigger when using X windows. */ |
79 | #define KBD_BUFFER_SIZE 4096 | |
80 | #else /* No X-windows, character input */ | |
81 | #define KBD_BUFFER_SIZE 256 | |
82 | #endif /* No X-windows */ | |
83 | ||
84 | /* Following definition copied from eval.c */ | |
85 | ||
86 | struct backtrace | |
87 | { | |
88 | struct backtrace *next; | |
89 | Lisp_Object *function; | |
90 | Lisp_Object *args; /* Points to vector of args. */ | |
91 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
92 | args points to slot holding list of | |
93 | unevalled args */ | |
94 | char evalargs; | |
95 | }; | |
96 | ||
c5fdd383 KH |
97 | #ifdef MULTI_KBOARD |
98 | KBOARD *initial_kboard; | |
99 | KBOARD *current_kboard; | |
100 | KBOARD *all_kboards; | |
1e8bd3da | 101 | int single_kboard; |
6c6083a9 | 102 | #else |
c5fdd383 | 103 | KBOARD the_only_kboard; |
6c6083a9 | 104 | #endif |
612b78ef | 105 | |
284f4730 JB |
106 | /* Non-nil disable property on a command means |
107 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 108 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
109 | |
110 | #define NUM_RECENT_KEYS (100) | |
111 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
112 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 113 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 114 | |
6569cc8d JB |
115 | /* Vector holding the key sequence that invoked the current command. |
116 | It is reused for each command, and it may be longer than the current | |
117 | sequence; this_command_key_count indicates how many elements | |
118 | actually mean something. | |
119 | It's easier to staticpro a single Lisp_Object than an array. */ | |
120 | Lisp_Object this_command_keys; | |
121 | int this_command_key_count; | |
284f4730 | 122 | |
71918b75 RS |
123 | /* Record values of this_command_key_count and echo_length () |
124 | before this command was read. */ | |
125 | static int before_command_key_count; | |
126 | static int before_command_echo_length; | |
127 | /* Values of before_command_key_count and before_command_echo_length | |
128 | saved by reset-this-command-lengths. */ | |
129 | static int before_command_key_count_1; | |
130 | static int before_command_echo_length_1; | |
131 | /* Flag set by reset-this-command-lengths, | |
132 | saying to reset the lengths when add_command_key is called. */ | |
133 | static int before_command_restore_flag; | |
134 | ||
284f4730 JB |
135 | extern int minbuf_level; |
136 | ||
137 | extern struct backtrace *backtrace_list; | |
138 | ||
139 | /* Nonzero means do menu prompting. */ | |
140 | static int menu_prompting; | |
141 | ||
142 | /* Character to see next line of menu prompt. */ | |
143 | static Lisp_Object menu_prompt_more_char; | |
144 | ||
145 | /* For longjmp to where kbd input is being done. */ | |
146 | static jmp_buf getcjmp; | |
147 | ||
148 | /* True while doing kbd input. */ | |
149 | int waiting_for_input; | |
150 | ||
151 | /* True while displaying for echoing. Delays C-g throwing. */ | |
152 | static int echoing; | |
153 | ||
03361bcc RS |
154 | /* Nonzero means disregard local maps for the menu bar. */ |
155 | static int inhibit_local_menu_bar_menus; | |
156 | ||
80e4aa30 | 157 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
158 | int immediate_quit; |
159 | ||
160 | /* Character to recognize as the help char. */ | |
7e85b935 | 161 | Lisp_Object Vhelp_char; |
284f4730 | 162 | |
ecb7cb34 KH |
163 | /* List of other event types to recognize as meaning "help". */ |
164 | Lisp_Object Vhelp_event_list; | |
165 | ||
284f4730 JB |
166 | /* Form to execute when help char is typed. */ |
167 | Lisp_Object Vhelp_form; | |
168 | ||
7e85b935 RS |
169 | /* Command to run when the help character follows a prefix key. */ |
170 | Lisp_Object Vprefix_help_command; | |
171 | ||
9f9c0e27 RS |
172 | /* List of items that should move to the end of the menu bar. */ |
173 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 174 | |
284f4730 JB |
175 | /* Character that causes a quit. Normally C-g. |
176 | ||
177 | If we are running on an ordinary terminal, this must be an ordinary | |
178 | ASCII char, since we want to make it our interrupt character. | |
179 | ||
180 | If we are not running on an ordinary terminal, it still needs to be | |
181 | an ordinary ASCII char. This character needs to be recognized in | |
182 | the input interrupt handler. At this point, the keystroke is | |
183 | represented as a struct input_event, while the desired quit | |
184 | character is specified as a lispy event. The mapping from struct | |
185 | input_events to lispy events cannot run in an interrupt handler, | |
186 | and the reverse mapping is difficult for anything but ASCII | |
187 | keystrokes. | |
188 | ||
189 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
190 | ASCII character. */ | |
191 | int quit_char; | |
192 | ||
193 | extern Lisp_Object current_global_map; | |
194 | extern int minibuf_level; | |
195 | ||
9dd3131c RS |
196 | /* If non-nil, this is a map that overrides all other local maps. */ |
197 | Lisp_Object Voverriding_local_map; | |
198 | ||
d0a49716 RS |
199 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
200 | Lisp_Object Voverriding_local_map_menu_flag; | |
201 | ||
7f07d5ca RS |
202 | /* Keymap that defines special misc events that should |
203 | be processed immediately at a low level. */ | |
204 | Lisp_Object Vspecial_event_map; | |
205 | ||
284f4730 JB |
206 | /* Current depth in recursive edits. */ |
207 | int command_loop_level; | |
208 | ||
209 | /* Total number of times command_loop has read a key sequence. */ | |
210 | int num_input_keys; | |
211 | ||
212 | /* Last input character read as a command. */ | |
213 | Lisp_Object last_command_char; | |
214 | ||
7d6de002 RS |
215 | /* Last input character read as a command, not counting menus |
216 | reached by the mouse. */ | |
217 | Lisp_Object last_nonmenu_event; | |
218 | ||
284f4730 JB |
219 | /* Last input character read for any purpose. */ |
220 | Lisp_Object last_input_char; | |
221 | ||
dbc4e1c1 | 222 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 223 | Lisp_Object Vunread_command_events; |
284f4730 | 224 | |
86e5706b RS |
225 | /* If not -1, an event to be read as subsequent command input. */ |
226 | int unread_command_char; | |
227 | ||
cd21b839 JB |
228 | /* If not Qnil, this is a switch-frame event which we decided to put |
229 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 230 | next command input, after any unread_command_events. |
8f805655 JB |
231 | |
232 | read_key_sequence uses this to delay switch-frame events until the | |
233 | end of the key sequence; Fread_char uses it to put off switch-frame | |
234 | events until a non-ASCII event is acceptable as input. */ | |
235 | Lisp_Object unread_switch_frame; | |
cd21b839 | 236 | |
9fa4395d RS |
237 | /* A mask of extra modifier bits to put into every keyboard char. */ |
238 | int extra_keyboard_modifiers; | |
239 | ||
284f4730 JB |
240 | /* Char to use as prefix when a meta character is typed in. |
241 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
242 | ||
243 | Lisp_Object meta_prefix_char; | |
244 | ||
245 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
246 | static int last_non_minibuf_size; | |
247 | ||
06ef7355 | 248 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
249 | static Lisp_Object Vauto_save_timeout; |
250 | ||
251 | /* Total number of times read_char has returned. */ | |
252 | int num_input_chars; | |
253 | ||
51172b6d RS |
254 | /* Total number of times read_char has returned, outside of macros. */ |
255 | int num_nonmacro_input_chars; | |
256 | ||
284f4730 JB |
257 | /* Auto-save automatically when this many characters have been typed |
258 | since the last time. */ | |
259 | ||
260 | static int auto_save_interval; | |
261 | ||
51172b6d | 262 | /* Value of num_nonmacro_input_chars as of last auto save. */ |
284f4730 JB |
263 | |
264 | int last_auto_save; | |
265 | ||
284f4730 | 266 | /* The command being executed by the command loop. |
6c7178b9 KH |
267 | Commands may set this, and the value set will be copied into |
268 | current_kboard->Vlast_command instead of the actual command. */ | |
284f4730 JB |
269 | Lisp_Object this_command; |
270 | ||
b453f72e KH |
271 | /* The value of point when the last command was executed. */ |
272 | int last_point_position; | |
273 | ||
047688cb RS |
274 | /* The buffer that was current when the last command was started. */ |
275 | Lisp_Object last_point_position_buffer; | |
276 | ||
4c52b668 KH |
277 | #ifdef MULTI_FRAME |
278 | /* The frame in which the last input event occurred, or Qmacro if the | |
279 | last event came from a macro. We use this to determine when to | |
280 | generate switch-frame events. This may be cleared by functions | |
281 | like Fselect_frame, to make sure that a switch-frame event is | |
282 | generated by the next character. */ | |
283 | Lisp_Object internal_last_event_frame; | |
284 | #endif | |
285 | ||
286 | /* A user-visible version of the above, intended to allow users to | |
287 | figure out where the last event came from, if the event doesn't | |
288 | carry that information itself (i.e. if it was a character). */ | |
289 | Lisp_Object Vlast_event_frame; | |
290 | ||
1113d9db JB |
291 | /* The timestamp of the last input event we received from the X server. |
292 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
293 | unsigned long last_event_timestamp; |
294 | ||
295 | Lisp_Object Qself_insert_command; | |
296 | Lisp_Object Qforward_char; | |
297 | Lisp_Object Qbackward_char; | |
e58aa385 | 298 | Lisp_Object Qundefined; |
284f4730 JB |
299 | |
300 | /* read_key_sequence stores here the command definition of the | |
301 | key sequence that it reads. */ | |
302 | Lisp_Object read_key_sequence_cmd; | |
303 | ||
304 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
305 | Lisp_Object Vtop_level; | |
306 | ||
307 | /* User-supplied string to translate input characters through. */ | |
308 | Lisp_Object Vkeyboard_translate_table; | |
309 | ||
310 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
311 | extern Lisp_Object Vfunction_key_map; | |
312 | ||
a612e298 RS |
313 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ |
314 | Lisp_Object Vkey_translation_map; | |
315 | ||
86e5706b RS |
316 | /* Non-nil means deactivate the mark at end of this command. */ |
317 | Lisp_Object Vdeactivate_mark; | |
318 | ||
48e416d4 RS |
319 | /* Menu bar specified in Lucid Emacs fashion. */ |
320 | ||
321 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
322 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
323 | ||
86e5706b RS |
324 | /* Hooks to run before and after each command. */ |
325 | Lisp_Object Qpre_command_hook, Qpost_command_hook; | |
326 | Lisp_Object Vpre_command_hook, Vpost_command_hook; | |
40932d1a | 327 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 328 | |
8a792f3a RS |
329 | /* List of deferred actions to be performed at a later time. |
330 | The precise format isn't relevant here; we just check whether it is nil. */ | |
331 | Lisp_Object Vdeferred_action_list; | |
332 | ||
333 | /* Function to call to handle deferred actions, when there are any. */ | |
334 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 335 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 336 | |
284f4730 JB |
337 | /* File in which we write all commands we read. */ |
338 | FILE *dribble; | |
339 | ||
340 | /* Nonzero if input is available. */ | |
341 | int input_pending; | |
342 | ||
b04904fb RS |
343 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
344 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
345 | ||
284f4730 JB |
346 | int meta_key; |
347 | ||
348 | extern char *pending_malloc_warning; | |
349 | ||
beecf6a1 KH |
350 | /* Circular buffer for pre-read keyboard input. */ |
351 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
352 | ||
353 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
354 | ||
355 | The interrupt-level event handlers will never enqueue an event on a | |
356 | frame which is not in Vframe_list, and once an event is dequeued, | |
357 | internal_last_event_frame or the event itself points to the frame. | |
358 | So that's all fine. | |
359 | ||
360 | But while the event is sitting in the queue, it's completely | |
361 | unprotected. Suppose the user types one command which will run for | |
362 | a while and then delete a frame, and then types another event at | |
363 | the frame that will be deleted, before the command gets around to | |
364 | it. Suppose there are no references to this frame elsewhere in | |
365 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
366 | have an event referring to a freed frame, which will crash Emacs | |
367 | when it is dequeued. | |
368 | ||
369 | Similar things happen when an event on a scroll bar is enqueued; the | |
370 | window may be deleted while the event is in the queue. | |
371 | ||
372 | So, we use this vector to protect the frame_or_window field in the | |
373 | event queue. That way, they'll be dequeued as dead frames or | |
374 | windows, but still valid lisp objects. | |
375 | ||
376 | If kbd_buffer[i].kind != no_event, then | |
377 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
378 | == kbd_buffer[i].frame_or_window. */ | |
379 | static Lisp_Object kbd_buffer_frame_or_window; | |
380 | ||
381 | /* Pointer to next available character in kbd_buffer. | |
382 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
383 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
384 | next available char is in kbd_buffer[0]. */ | |
385 | static struct input_event *kbd_fetch_ptr; | |
386 | ||
387 | /* Pointer to next place to store character in kbd_buffer. This | |
388 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
389 | character should go in kbd_buffer[0]. */ | |
390 | static volatile struct input_event *kbd_store_ptr; | |
391 | ||
392 | /* The above pair of variables forms a "queue empty" flag. When we | |
393 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
394 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
395 | there is input available iff the two pointers are not equal. | |
396 | ||
397 | Why not just have a flag set and cleared by the enqueuing and | |
398 | dequeuing functions? Such a flag could be screwed up by interrupts | |
399 | at inopportune times. */ | |
400 | ||
f3253854 | 401 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
402 | mouse moves, and motion events will appear in the input stream. |
403 | Otherwise, mouse motion is ignored. */ | |
404 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 405 | |
284f4730 JB |
406 | /* Symbols to head events. */ |
407 | Lisp_Object Qmouse_movement; | |
3c370943 | 408 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 409 | Lisp_Object Qswitch_frame; |
bbdc2092 | 410 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
411 | Lisp_Object Qiconify_frame; |
412 | Lisp_Object Qmake_frame_visible; | |
cd21b839 | 413 | |
284f4730 JB |
414 | /* Symbols to denote kinds of events. */ |
415 | Lisp_Object Qfunction_key; | |
416 | Lisp_Object Qmouse_click; | |
417 | /* Lisp_Object Qmouse_movement; - also an event header */ | |
284f4730 JB |
418 | |
419 | /* Properties of event headers. */ | |
420 | Lisp_Object Qevent_kind; | |
88cb0656 | 421 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 422 | |
598a9fa7 JB |
423 | Lisp_Object Qmenu_enable; |
424 | ||
0a7f1fc0 JB |
425 | /* An event header symbol HEAD may have a property named |
426 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
427 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
428 | mask of modifiers applied to it. If present, this is used to help | |
429 | speed up parse_modifiers. */ | |
430 | Lisp_Object Qevent_symbol_element_mask; | |
431 | ||
432 | /* An unmodified event header BASE may have a property named | |
433 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
434 | modified versions of BASE. If present, this helps speed up | |
435 | apply_modifiers. */ | |
436 | Lisp_Object Qmodifier_cache; | |
437 | ||
5ec75a55 | 438 | /* Symbols to use for parts of windows. */ |
284f4730 | 439 | Lisp_Object Qmode_line; |
e5d77022 | 440 | Lisp_Object Qvertical_line; |
3c370943 | 441 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
442 | Lisp_Object Qmenu_bar; |
443 | ||
444 | extern Lisp_Object Qmenu_enable; | |
284f4730 | 445 | |
f4255cd1 JB |
446 | Lisp_Object recursive_edit_unwind (), command_loop (); |
447 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 448 | Lisp_Object Qextended_command_history; |
284f4730 | 449 | |
2c834fb3 KH |
450 | extern char *x_get_keysym_name (); |
451 | ||
f4eef8b4 RS |
452 | Lisp_Object Qpolling_period; |
453 | ||
a9f16aa9 KH |
454 | extern Lisp_Object Vprint_level, Vprint_length; |
455 | ||
ffd56f97 JB |
456 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
457 | happens. */ | |
458 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
459 | |
460 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
461 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
462 | int interrupt_input; | |
463 | ||
464 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
465 | int interrupts_deferred; | |
466 | ||
467 | /* nonzero means use ^S/^Q for flow control. */ | |
468 | int flow_control; | |
469 | ||
284f4730 JB |
470 | /* Allow m- file to inhibit use of FIONREAD. */ |
471 | #ifdef BROKEN_FIONREAD | |
472 | #undef FIONREAD | |
473 | #endif | |
474 | ||
475 | /* We are unable to use interrupts if FIONREAD is not available, | |
476 | so flush SIGIO so we won't try. */ | |
477 | #ifndef FIONREAD | |
478 | #ifdef SIGIO | |
479 | #undef SIGIO | |
480 | #endif | |
481 | #endif | |
482 | ||
34f04431 RS |
483 | /* If we support X Windows, turn on the code to poll periodically |
484 | to detect C-g. It isn't actually used when doing interrupt input. */ | |
284f4730 | 485 | #ifdef HAVE_X_WINDOWS |
284f4730 JB |
486 | #define POLL_FOR_INPUT |
487 | #endif | |
284f4730 JB |
488 | \f |
489 | /* Global variable declarations. */ | |
490 | ||
491 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
492 | void (*keyboard_init_hook) (); | |
493 | ||
494 | static int read_avail_input (); | |
495 | static void get_input_pending (); | |
9fd7d808 | 496 | static int readable_events (); |
8150596a RS |
497 | static Lisp_Object read_char_x_menu_prompt (); |
498 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 499 | static Lisp_Object make_lispy_event (); |
514354e9 | 500 | #ifdef HAVE_MOUSE |
a612e298 | 501 | static Lisp_Object make_lispy_movement (); |
514354e9 | 502 | #endif |
a612e298 RS |
503 | static Lisp_Object modify_event_symbol (); |
504 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 505 | static int parse_solitary_modifier (); |
284f4730 JB |
506 | |
507 | /* > 0 if we are to echo keystrokes. */ | |
508 | static int echo_keystrokes; | |
509 | ||
8026024c KH |
510 | /* Nonzero means don't try to suspend even if the operating system seems |
511 | to support it. */ | |
512 | static int cannot_suspend; | |
513 | ||
284f4730 JB |
514 | #define min(a,b) ((a)<(b)?(a):(b)) |
515 | #define max(a,b) ((a)>(b)?(a):(b)) | |
516 | ||
517 | /* Install the string STR as the beginning of the string of echoing, | |
518 | so that it serves as a prompt for the next character. | |
519 | Also start echoing. */ | |
520 | ||
521 | echo_prompt (str) | |
522 | char *str; | |
523 | { | |
524 | int len = strlen (str); | |
7a80a6f6 | 525 | |
ba72822c KH |
526 | if (len > ECHOBUFSIZE - 4) |
527 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
528 | bcopy (str, current_kboard->echobuf, len); |
529 | current_kboard->echoptr = current_kboard->echobuf + len; | |
530 | *current_kboard->echoptr = '\0'; | |
284f4730 | 531 | |
c5fdd383 | 532 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 533 | |
284f4730 JB |
534 | echo (); |
535 | } | |
536 | ||
df0f2ba1 | 537 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
538 | C can be a character, which is printed prettily ("M-C-x" and all that |
539 | jazz), or a symbol, whose name is printed. */ | |
540 | ||
541 | echo_char (c) | |
542 | Lisp_Object c; | |
543 | { | |
544 | extern char *push_key_description (); | |
545 | ||
c5fdd383 | 546 | if (current_kboard->immediate_echo) |
284f4730 | 547 | { |
c5fdd383 | 548 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 549 | |
c5fdd383 | 550 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
551 | *ptr++ = ' '; |
552 | ||
553 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 554 | c = EVENT_HEAD (c); |
284f4730 | 555 | |
8c18cbfb | 556 | if (INTEGERP (c)) |
284f4730 | 557 | { |
c5fdd383 | 558 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
559 | return; |
560 | ||
cb5df6ae | 561 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 562 | } |
8c18cbfb | 563 | else if (SYMBOLP (c)) |
284f4730 JB |
564 | { |
565 | struct Lisp_String *name = XSYMBOL (c)->name; | |
c5fdd383 | 566 | if ((ptr - current_kboard->echobuf) + name->size + 4 > ECHOBUFSIZE) |
284f4730 JB |
567 | return; |
568 | bcopy (name->data, ptr, name->size); | |
569 | ptr += name->size; | |
570 | } | |
571 | ||
c5fdd383 | 572 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 573 | && help_char_p (c)) |
284f4730 JB |
574 | { |
575 | strcpy (ptr, " (Type ? for further options)"); | |
576 | ptr += strlen (ptr); | |
577 | } | |
578 | ||
579 | *ptr = 0; | |
c5fdd383 | 580 | current_kboard->echoptr = ptr; |
284f4730 JB |
581 | |
582 | echo (); | |
583 | } | |
584 | } | |
585 | ||
586 | /* Temporarily add a dash to the end of the echo string if it's not | |
587 | empty, so that it serves as a mini-prompt for the very next character. */ | |
588 | ||
589 | echo_dash () | |
590 | { | |
c5fdd383 KH |
591 | if (!current_kboard->immediate_echo |
592 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 593 | return; |
7a80a6f6 | 594 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
595 | if (current_kboard->echo_after_prompt |
596 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 597 | return; |
4bafa972 | 598 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 599 | if (current_kboard->echoptr == 0) |
4bafa972 | 600 | return; |
284f4730 JB |
601 | |
602 | /* Put a dash at the end of the buffer temporarily, | |
603 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
604 | current_kboard->echoptr[0] = '-'; |
605 | current_kboard->echoptr[1] = 0; | |
284f4730 JB |
606 | |
607 | echo (); | |
608 | } | |
609 | ||
610 | /* Display the current echo string, and begin echoing if not already | |
611 | doing so. */ | |
612 | ||
613 | echo () | |
614 | { | |
c5fdd383 | 615 | if (!current_kboard->immediate_echo) |
284f4730 JB |
616 | { |
617 | int i; | |
c5fdd383 | 618 | current_kboard->immediate_echo = 1; |
284f4730 JB |
619 | |
620 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
621 | { |
622 | Lisp_Object c; | |
623 | c = XVECTOR (this_command_keys)->contents[i]; | |
624 | if (! (EVENT_HAS_PARAMETERS (c) | |
625 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
626 | echo_char (c); | |
627 | } | |
284f4730 JB |
628 | echo_dash (); |
629 | } | |
630 | ||
631 | echoing = 1; | |
c5fdd383 | 632 | message1_nolog (current_kboard->echobuf); |
284f4730 JB |
633 | echoing = 0; |
634 | ||
635 | if (waiting_for_input && !NILP (Vquit_flag)) | |
636 | quit_throw_to_read_char (); | |
637 | } | |
638 | ||
639 | /* Turn off echoing, for the start of a new command. */ | |
640 | ||
641 | cancel_echoing () | |
642 | { | |
c5fdd383 KH |
643 | current_kboard->immediate_echo = 0; |
644 | current_kboard->echoptr = current_kboard->echobuf; | |
645 | current_kboard->echo_after_prompt = -1; | |
284f4730 JB |
646 | } |
647 | ||
648 | /* Return the length of the current echo string. */ | |
649 | ||
650 | static int | |
651 | echo_length () | |
652 | { | |
c5fdd383 | 653 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
654 | } |
655 | ||
656 | /* Truncate the current echo message to its first LEN chars. | |
657 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 658 | switches frames while entering a key sequence. */ |
284f4730 JB |
659 | |
660 | static void | |
661 | echo_truncate (len) | |
662 | int len; | |
663 | { | |
c5fdd383 KH |
664 | current_kboard->echobuf[len] = '\0'; |
665 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 666 | truncate_echo_area (len); |
284f4730 JB |
667 | } |
668 | ||
669 | \f | |
670 | /* Functions for manipulating this_command_keys. */ | |
671 | static void | |
672 | add_command_key (key) | |
673 | Lisp_Object key; | |
674 | { | |
6569cc8d JB |
675 | int size = XVECTOR (this_command_keys)->size; |
676 | ||
71918b75 RS |
677 | /* If reset-this-command-length was called recently, obey it now. |
678 | See the doc string of that function for an explanation of why. */ | |
679 | if (before_command_restore_flag) | |
680 | { | |
681 | this_command_key_count = before_command_key_count_1; | |
682 | echo_truncate (before_command_echo_length_1); | |
683 | before_command_restore_flag = 0; | |
684 | } | |
685 | ||
6569cc8d | 686 | if (this_command_key_count >= size) |
284f4730 | 687 | { |
9b8eb840 | 688 | Lisp_Object new_keys; |
6569cc8d | 689 | |
9b8eb840 | 690 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
691 | bcopy (XVECTOR (this_command_keys)->contents, |
692 | XVECTOR (new_keys)->contents, | |
8f805655 | 693 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
694 | |
695 | this_command_keys = new_keys; | |
284f4730 | 696 | } |
6569cc8d JB |
697 | |
698 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
699 | } |
700 | \f | |
701 | Lisp_Object | |
702 | recursive_edit_1 () | |
703 | { | |
704 | int count = specpdl_ptr - specpdl; | |
705 | Lisp_Object val; | |
706 | ||
707 | if (command_loop_level > 0) | |
708 | { | |
709 | specbind (Qstandard_output, Qt); | |
710 | specbind (Qstandard_input, Qt); | |
711 | } | |
712 | ||
713 | val = command_loop (); | |
714 | if (EQ (val, Qt)) | |
715 | Fsignal (Qquit, Qnil); | |
716 | ||
cb5df6ae | 717 | return unbind_to (count, Qnil); |
284f4730 JB |
718 | } |
719 | ||
720 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 721 | |
284f4730 JB |
722 | record_auto_save () |
723 | { | |
51172b6d | 724 | last_auto_save = num_nonmacro_input_chars; |
284f4730 | 725 | } |
5846638c RS |
726 | |
727 | /* Make an auto save happen as soon as possible at command level. */ | |
728 | ||
729 | force_auto_save_soon () | |
730 | { | |
731 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
732 | |
733 | record_asynch_buffer_change (); | |
5846638c | 734 | } |
284f4730 | 735 | \f |
284f4730 JB |
736 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
737 | "Invoke the editor command loop recursively.\n\ | |
738 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
739 | that tells this function to return.\n\ | |
740 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
741 | This function is called by the editor initialization to begin editing.") | |
742 | () | |
743 | { | |
744 | int count = specpdl_ptr - specpdl; | |
745 | Lisp_Object val; | |
746 | ||
747 | command_loop_level++; | |
748 | update_mode_lines = 1; | |
749 | ||
750 | record_unwind_protect (recursive_edit_unwind, | |
751 | (command_loop_level | |
752 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
753 | ? Fcurrent_buffer () | |
754 | : Qnil); | |
755 | recursive_edit_1 (); | |
756 | return unbind_to (count, Qnil); | |
757 | } | |
758 | ||
759 | Lisp_Object | |
760 | recursive_edit_unwind (buffer) | |
761 | Lisp_Object buffer; | |
762 | { | |
763 | if (!NILP (buffer)) | |
764 | Fset_buffer (buffer); | |
765 | ||
766 | command_loop_level--; | |
767 | update_mode_lines = 1; | |
768 | return Qnil; | |
769 | } | |
770 | \f | |
604ccd1d | 771 | static void |
1e8bd3da | 772 | any_kboard_state () |
604ccd1d | 773 | { |
1e8bd3da RS |
774 | #ifdef MULTI_KBOARD |
775 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
776 | it will right away be read by read_key_sequence, | |
777 | and then if we do switch KBOARDS, it will go into the side | |
778 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 779 | if (CONSP (Vunread_command_events)) |
4524b161 | 780 | { |
c5fdd383 KH |
781 | current_kboard->kbd_queue |
782 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
783 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 784 | } |
604ccd1d | 785 | Vunread_command_events = Qnil; |
1e8bd3da RS |
786 | #endif |
787 | single_kboard = 0; | |
788 | #endif | |
604ccd1d | 789 | } |
1e8bd3da RS |
790 | |
791 | /* Switch to the single-kboard state, making current_kboard | |
792 | the only KBOARD from which further input is accepted. */ | |
793 | ||
794 | void | |
795 | single_kboard_state () | |
796 | { | |
797 | #ifdef MULTI_KBOARD | |
798 | single_kboard = 1; | |
604ccd1d | 799 | #endif |
1e8bd3da RS |
800 | } |
801 | ||
802 | /* Maintain a stack of kboards, so other parts of Emacs | |
803 | can switch temporarily to the kboard of a given frame | |
804 | and then revert to the previous status. */ | |
805 | ||
806 | struct kboard_stack | |
807 | { | |
808 | KBOARD *kboard; | |
809 | struct kboard_stack *next; | |
810 | }; | |
811 | ||
812 | static struct kboard_stack *kboard_stack; | |
813 | ||
814 | void | |
815 | push_frame_kboard (f) | |
816 | FRAME_PTR f; | |
817 | { | |
ab48365b | 818 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
819 | struct kboard_stack *p |
820 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
821 | ||
822 | p->next = kboard_stack; | |
823 | p->kboard = current_kboard; | |
824 | kboard_stack = p; | |
825 | ||
826 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 827 | #endif |
1e8bd3da RS |
828 | } |
829 | ||
830 | void | |
831 | pop_frame_kboard () | |
832 | { | |
ab48365b | 833 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
834 | struct kboard_stack *p = kboard_stack; |
835 | current_kboard = p->kboard; | |
836 | kboard_stack = p->next; | |
837 | xfree (p); | |
ab48365b | 838 | #endif |
1e8bd3da RS |
839 | } |
840 | \f | |
841 | /* Handle errors that are not handled at inner levels | |
842 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 843 | |
284f4730 JB |
844 | Lisp_Object |
845 | cmd_error (data) | |
846 | Lisp_Object data; | |
a1341f75 | 847 | { |
a9f16aa9 KH |
848 | Lisp_Object old_level, old_length; |
849 | ||
a1341f75 RS |
850 | Vstandard_output = Qt; |
851 | Vstandard_input = Qt; | |
852 | Vexecuting_macro = Qnil; | |
d8bcf58e | 853 | current_kboard->Vprefix_arg = Qnil; |
df0f2ba1 | 854 | cancel_echoing (); |
a9f16aa9 KH |
855 | |
856 | /* Avoid unquittable loop if data contains a circular list. */ | |
857 | old_level = Vprint_level; | |
858 | old_length = Vprint_length; | |
859 | XSETFASTINT(Vprint_level, 10); | |
860 | XSETFASTINT(Vprint_length, 10); | |
6de34814 | 861 | cmd_error_internal (data, NULL); |
a9f16aa9 KH |
862 | Vprint_level = old_level; |
863 | Vprint_length = old_length; | |
a1341f75 RS |
864 | |
865 | Vquit_flag = Qnil; | |
866 | ||
867 | Vinhibit_quit = Qnil; | |
c5fdd383 | 868 | #ifdef MULTI_KBOARD |
1e8bd3da | 869 | any_kboard_state (); |
ff4b06d3 | 870 | #endif |
a1341f75 RS |
871 | |
872 | return make_number (0); | |
873 | } | |
874 | ||
875 | cmd_error_internal (data, context) | |
876 | Lisp_Object data; | |
877 | char *context; | |
284f4730 JB |
878 | { |
879 | Lisp_Object errmsg, tail, errname, file_error; | |
880 | Lisp_Object stream; | |
881 | struct gcpro gcpro1; | |
882 | int i; | |
883 | ||
884 | Vquit_flag = Qnil; | |
885 | Vinhibit_quit = Qt; | |
284f4730 JB |
886 | echo_area_glyphs = 0; |
887 | ||
ff11dfa1 | 888 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
889 | yet, or we're not interactive, it's best to dump this message out |
890 | to stderr and exit. */ | |
ff11dfa1 | 891 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
892 | || noninteractive) |
893 | stream = Qexternal_debugging_output; | |
894 | else | |
895 | { | |
896 | Fdiscard_input (); | |
897 | bitch_at_user (); | |
898 | stream = Qt; | |
899 | } | |
900 | ||
a1341f75 RS |
901 | if (context != 0) |
902 | write_string_1 (context, -1, stream); | |
903 | ||
284f4730 JB |
904 | errname = Fcar (data); |
905 | ||
906 | if (EQ (errname, Qerror)) | |
907 | { | |
908 | data = Fcdr (data); | |
909 | if (!CONSP (data)) data = Qnil; | |
910 | errmsg = Fcar (data); | |
911 | file_error = Qnil; | |
912 | } | |
913 | else | |
914 | { | |
915 | errmsg = Fget (errname, Qerror_message); | |
916 | file_error = Fmemq (Qfile_error, | |
917 | Fget (errname, Qerror_conditions)); | |
918 | } | |
919 | ||
920 | /* Print an error message including the data items. | |
921 | This is done by printing it into a scratch buffer | |
922 | and then making a copy of the text in the buffer. */ | |
923 | ||
924 | if (!CONSP (data)) data = Qnil; | |
925 | tail = Fcdr (data); | |
926 | GCPRO1 (tail); | |
927 | ||
928 | /* For file-error, make error message by concatenating | |
929 | all the data items. They are all strings. */ | |
930 | if (!NILP (file_error) && !NILP (tail)) | |
931 | errmsg = XCONS (tail)->car, tail = XCONS (tail)->cdr; | |
932 | ||
8c18cbfb | 933 | if (STRINGP (errmsg)) |
284f4730 JB |
934 | Fprinc (errmsg, stream); |
935 | else | |
936 | write_string_1 ("peculiar error", -1, stream); | |
937 | ||
938 | for (i = 0; CONSP (tail); tail = Fcdr (tail), i++) | |
939 | { | |
940 | write_string_1 (i ? ", " : ": ", 2, stream); | |
941 | if (!NILP (file_error)) | |
942 | Fprinc (Fcar (tail), stream); | |
943 | else | |
944 | Fprin1 (Fcar (tail), stream); | |
945 | } | |
946 | UNGCPRO; | |
947 | ||
ff11dfa1 | 948 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 949 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
ff11dfa1 | 950 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
951 | || noninteractive) |
952 | { | |
953 | Fterpri (stream); | |
954 | Fkill_emacs (make_number (-1)); | |
955 | } | |
284f4730 JB |
956 | } |
957 | \f | |
958 | Lisp_Object command_loop_1 (); | |
959 | Lisp_Object command_loop_2 (); | |
960 | Lisp_Object top_level_1 (); | |
961 | ||
962 | /* Entry to editor-command-loop. | |
963 | This level has the catches for exiting/returning to editor command loop. | |
964 | It returns nil to exit recursive edit, t to abort it. */ | |
965 | ||
966 | Lisp_Object | |
967 | command_loop () | |
968 | { | |
969 | if (command_loop_level > 0 || minibuf_level > 0) | |
970 | { | |
971 | return internal_catch (Qexit, command_loop_2, Qnil); | |
972 | } | |
973 | else | |
974 | while (1) | |
975 | { | |
976 | internal_catch (Qtop_level, top_level_1, Qnil); | |
977 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
df0f2ba1 | 978 | |
284f4730 JB |
979 | /* End of file in -batch run causes exit here. */ |
980 | if (noninteractive) | |
981 | Fkill_emacs (Qt); | |
982 | } | |
983 | } | |
984 | ||
985 | /* Here we catch errors in execution of commands within the | |
986 | editing loop, and reenter the editing loop. | |
987 | When there is an error, cmd_error runs and returns a non-nil | |
988 | value to us. A value of nil means that cmd_loop_1 itself | |
989 | returned due to end of file (or end of kbd macro). */ | |
990 | ||
991 | Lisp_Object | |
992 | command_loop_2 () | |
993 | { | |
994 | register Lisp_Object val; | |
995 | ||
996 | do | |
997 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
998 | while (!NILP (val)); | |
999 | ||
1000 | return Qnil; | |
1001 | } | |
1002 | ||
1003 | Lisp_Object | |
1004 | top_level_2 () | |
1005 | { | |
1006 | return Feval (Vtop_level); | |
1007 | } | |
1008 | ||
1009 | Lisp_Object | |
1010 | top_level_1 () | |
1011 | { | |
1012 | /* On entry to the outer level, run the startup file */ | |
1013 | if (!NILP (Vtop_level)) | |
1014 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1015 | else if (!NILP (Vpurify_flag)) | |
1016 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1017 | else | |
1018 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1019 | return Qnil; | |
1020 | } | |
1021 | ||
1022 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1023 | "Exit all recursive editing levels.") | |
1024 | () | |
1025 | { | |
1026 | Fthrow (Qtop_level, Qnil); | |
1027 | } | |
1028 | ||
1029 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1030 | "Exit from the innermost recursive edit or minibuffer.") | |
1031 | () | |
1032 | { | |
1033 | if (command_loop_level > 0 || minibuf_level > 0) | |
1034 | Fthrow (Qexit, Qnil); | |
1035 | ||
1036 | error ("No recursive edit is in progress"); | |
1037 | } | |
1038 | ||
1039 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1040 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1041 | () | |
1042 | { | |
1043 | if (command_loop_level > 0 || minibuf_level > 0) | |
1044 | Fthrow (Qexit, Qt); | |
1045 | ||
1046 | error ("No recursive edit is in progress"); | |
1047 | } | |
1048 | \f | |
1049 | /* This is the actual command reading loop, | |
1050 | sans error-handling encapsulation. */ | |
1051 | ||
1052 | Lisp_Object Fcommand_execute (); | |
1053 | static int read_key_sequence (); | |
1c9784c9 | 1054 | static void safe_run_hooks (); |
284f4730 JB |
1055 | |
1056 | Lisp_Object | |
1057 | command_loop_1 () | |
1058 | { | |
48e416d4 | 1059 | Lisp_Object cmd, tem; |
284f4730 JB |
1060 | int lose; |
1061 | int nonundocount; | |
1062 | Lisp_Object keybuf[30]; | |
1063 | int i; | |
1064 | int no_redisplay; | |
1065 | int no_direct; | |
86e5706b RS |
1066 | int prev_modiff; |
1067 | struct buffer *prev_buffer; | |
c5fdd383 | 1068 | #ifdef MULTI_KBOARD |
1e8bd3da | 1069 | int was_locked = single_kboard; |
bded54dd | 1070 | #endif |
284f4730 | 1071 | |
d9b641bb | 1072 | current_kboard->Vprefix_arg = Qnil; |
86e5706b | 1073 | Vdeactivate_mark = Qnil; |
284f4730 | 1074 | waiting_for_input = 0; |
df0f2ba1 | 1075 | cancel_echoing (); |
284f4730 | 1076 | |
284f4730 JB |
1077 | nonundocount = 0; |
1078 | no_redisplay = 0; | |
1079 | this_command_key_count = 0; | |
1080 | ||
a612e298 RS |
1081 | /* Make sure this hook runs after commands that get errors and |
1082 | throw to top level. */ | |
a98ea3f9 RS |
1083 | /* Note that the value cell will never directly contain nil |
1084 | if the symbol is a local variable. */ | |
1085 | if (!NILP (XSYMBOL (Qpost_command_hook)->value) && !NILP (Vrun_hooks)) | |
1086 | safe_run_hooks (Qpost_command_hook); | |
a612e298 | 1087 | |
8a792f3a RS |
1088 | if (!NILP (Vdeferred_action_list)) |
1089 | call0 (Vdeferred_action_function); | |
1090 | ||
51d5a2c9 | 1091 | /* Do this after running Vpost_command_hook, for consistency. */ |
6c7178b9 | 1092 | current_kboard->Vlast_command = this_command; |
51d5a2c9 | 1093 | |
284f4730 JB |
1094 | while (1) |
1095 | { | |
284f4730 JB |
1096 | /* Make sure the current window's buffer is selected. */ |
1097 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1098 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1099 | ||
1100 | /* Display any malloc warning that just came out. Use while because | |
1101 | displaying one warning can cause another. */ | |
1102 | ||
1103 | while (pending_malloc_warning) | |
1104 | display_malloc_warning (); | |
1105 | ||
1106 | no_direct = 0; | |
1107 | ||
86e5706b RS |
1108 | Vdeactivate_mark = Qnil; |
1109 | ||
284f4730 | 1110 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1111 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1112 | |
93127526 RS |
1113 | if (minibuf_level && echo_area_glyphs |
1114 | && EQ (minibuf_window, echo_area_window)) | |
284f4730 | 1115 | { |
f1bed6d8 RS |
1116 | /* Bind inhibit-quit to t so that C-g gets read in |
1117 | rather than quitting back to the minibuffer. */ | |
1118 | int count = specpdl_ptr - specpdl; | |
1119 | specbind (Qinhibit_quit, Qt); | |
284f4730 | 1120 | Fsit_for (make_number (2), Qnil, Qnil); |
cb5df6ae | 1121 | unbind_to (count, Qnil); |
f1bed6d8 | 1122 | |
284f4730 JB |
1123 | echo_area_glyphs = 0; |
1124 | no_direct = 1; | |
1125 | if (!NILP (Vquit_flag)) | |
1126 | { | |
1127 | Vquit_flag = Qnil; | |
24597608 | 1128 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1129 | } |
1130 | } | |
1131 | ||
1132 | #ifdef C_ALLOCA | |
ff4b06d3 | 1133 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1134 | /* Since we can free the most stuff here. */ |
1135 | #endif /* C_ALLOCA */ | |
1136 | ||
8f805655 | 1137 | #if 0 |
ff11dfa1 | 1138 | #ifdef MULTI_FRAME |
8f805655 JB |
1139 | /* Select the frame that the last event came from. Usually, |
1140 | switch-frame events will take care of this, but if some lisp | |
1141 | code swallows a switch-frame event, we'll fix things up here. | |
1142 | Is this a good idea? */ | |
8c18cbfb | 1143 | if (FRAMEP (internal_last_event_frame) |
3c370943 JB |
1144 | && XFRAME (internal_last_event_frame) != selected_frame) |
1145 | Fselect_frame (internal_last_event_frame, Qnil); | |
cd21b839 | 1146 | #endif |
284f4730 | 1147 | #endif |
48e416d4 RS |
1148 | /* If it has changed current-menubar from previous value, |
1149 | really recompute the menubar from the value. */ | |
a646e520 RS |
1150 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1151 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1152 | call0 (Qrecompute_lucid_menubar); |
1153 | ||
71918b75 RS |
1154 | before_command_key_count = this_command_key_count; |
1155 | before_command_echo_length = echo_length (); | |
1156 | ||
8f805655 | 1157 | /* Read next key sequence; i gets its length. */ |
ce98e608 KH |
1158 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
1159 | Qnil, 0, 1); | |
8f805655 JB |
1160 | |
1161 | ++num_input_keys; | |
1162 | ||
284f4730 JB |
1163 | /* Now we have read a key sequence of length I, |
1164 | or else I is 0 and we found end of file. */ | |
1165 | ||
1166 | if (i == 0) /* End of file -- happens only in */ | |
1167 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1168 | /* -1 means read_key_sequence got a menu that was rejected. |
1169 | Just loop around and read another command. */ | |
1170 | if (i == -1) | |
1171 | { | |
1172 | cancel_echoing (); | |
1173 | this_command_key_count = 0; | |
ff4b06d3 | 1174 | goto finalize; |
dcc408a0 | 1175 | } |
284f4730 | 1176 | |
284f4730 JB |
1177 | last_command_char = keybuf[i - 1]; |
1178 | ||
75c0b143 RS |
1179 | /* If the previous command tried to force a specific window-start, |
1180 | forget about that, in case this command moves point far away | |
c422836d KH |
1181 | from that position. But also throw away beg_unchanged and |
1182 | end_unchanged information in that case, so that redisplay will | |
1183 | update the whole window properly. */ | |
1184 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1185 | { | |
1186 | XWINDOW (selected_window)->force_start = Qnil; | |
1187 | beg_unchanged = end_unchanged = 0; | |
1188 | } | |
75c0b143 | 1189 | |
284f4730 JB |
1190 | cmd = read_key_sequence_cmd; |
1191 | if (!NILP (Vexecuting_macro)) | |
1192 | { | |
1193 | if (!NILP (Vquit_flag)) | |
1194 | { | |
1195 | Vexecuting_macro = Qt; | |
1196 | QUIT; /* Make some noise. */ | |
1197 | /* Will return since macro now empty. */ | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1202 | cases identified below that set no_redisplay to 1. |
1203 | (actually, there's currently no way to prevent the redisplay, | |
1204 | and no_redisplay is ignored. | |
beecf6a1 | 1205 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1206 | no_redisplay = 0; |
1207 | ||
86e5706b RS |
1208 | prev_buffer = current_buffer; |
1209 | prev_modiff = MODIFF; | |
8746da95 | 1210 | last_point_position = PT; |
18cd2eeb | 1211 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1212 | |
284f4730 JB |
1213 | /* Execute the command. */ |
1214 | ||
86e5706b | 1215 | this_command = cmd; |
a98ea3f9 RS |
1216 | /* Note that the value cell will never directly contain nil |
1217 | if the symbol is a local variable. */ | |
1218 | if (!NILP (XSYMBOL (Qpre_command_hook)->value) && !NILP (Vrun_hooks)) | |
1219 | safe_run_hooks (Qpre_command_hook); | |
86e5706b | 1220 | |
258bf746 | 1221 | if (NILP (this_command)) |
284f4730 JB |
1222 | { |
1223 | /* nil means key is undefined. */ | |
1224 | bitch_at_user (); | |
c5fdd383 | 1225 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1226 | update_mode_lines = 1; |
d8bcf58e | 1227 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1228 | } |
1229 | else | |
1230 | { | |
d8bcf58e | 1231 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 JB |
1232 | { |
1233 | /* Recognize some common commands in common situations and | |
1234 | do them directly. */ | |
8001d352 | 1235 | if (EQ (this_command, Qforward_char) && PT < ZV) |
284f4730 JB |
1236 | { |
1237 | struct Lisp_Vector *dp | |
1238 | = window_display_table (XWINDOW (selected_window)); | |
8001d352 KH |
1239 | lose = FETCH_CHAR (PT); |
1240 | SET_PT (PT + 1); | |
0f7a8fee | 1241 | if ((dp |
82ba47d7 | 1242 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1243 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1244 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1245 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1246 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1247 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1248 | >= MODIFF) | |
1249 | && (XFASTINT (XWINDOW (selected_window)->last_point) | |
8001d352 | 1250 | == PT - 1) |
284f4730 JB |
1251 | && !windows_or_buffers_changed |
1252 | && EQ (current_buffer->selective_display, Qnil) | |
1253 | && !detect_input_pending () | |
1254 | && NILP (Vexecuting_macro)) | |
1255 | no_redisplay = direct_output_forward_char (1); | |
1256 | goto directly_done; | |
1257 | } | |
8001d352 | 1258 | else if (EQ (this_command, Qbackward_char) && PT > BEGV) |
284f4730 JB |
1259 | { |
1260 | struct Lisp_Vector *dp | |
1261 | = window_display_table (XWINDOW (selected_window)); | |
8001d352 KH |
1262 | SET_PT (PT - 1); |
1263 | lose = FETCH_CHAR (PT); | |
0f7a8fee | 1264 | if ((dp |
ca873d73 | 1265 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1266 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1267 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1268 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1269 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1270 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1271 | >= MODIFF) | |
1272 | && (XFASTINT (XWINDOW (selected_window)->last_point) | |
8001d352 | 1273 | == PT + 1) |
284f4730 JB |
1274 | && !windows_or_buffers_changed |
1275 | && EQ (current_buffer->selective_display, Qnil) | |
1276 | && !detect_input_pending () | |
1277 | && NILP (Vexecuting_macro)) | |
1278 | no_redisplay = direct_output_forward_char (-1); | |
1279 | goto directly_done; | |
1280 | } | |
258bf746 | 1281 | else if (EQ (this_command, Qself_insert_command) |
284f4730 | 1282 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1283 | && INTEGERP (last_command_char)) |
284f4730 JB |
1284 | { |
1285 | unsigned char c = XINT (last_command_char); | |
fc9cce4e | 1286 | int value; |
284f4730 | 1287 | |
fc9cce4e RS |
1288 | if (NILP (Vexecuting_macro) |
1289 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1290 | { |
1291 | if (!nonundocount || nonundocount >= 20) | |
1292 | { | |
1293 | Fundo_boundary (); | |
1294 | nonundocount = 0; | |
1295 | } | |
1296 | nonundocount++; | |
1297 | } | |
fc9cce4e RS |
1298 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1299 | < MODIFF) | |
1300 | || (XFASTINT (XWINDOW (selected_window)->last_point) | |
1301 | != PT) | |
4c61f38e | 1302 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1303 | || windows_or_buffers_changed |
1304 | || !EQ (current_buffer->selective_display, Qnil) | |
1305 | || detect_input_pending () | |
1306 | || !NILP (Vexecuting_macro)); | |
1307 | value = internal_self_insert (c, 0); | |
1308 | if (value) | |
1309 | lose = 1; | |
1310 | if (value == 2) | |
1311 | nonundocount = 0; | |
1312 | ||
1313 | if (!lose | |
1314 | && (PT == ZV || FETCH_CHAR (PT) == '\n')) | |
284f4730 JB |
1315 | { |
1316 | struct Lisp_Vector *dp | |
1317 | = window_display_table (XWINDOW (selected_window)); | |
b8d9050d | 1318 | int lose = c; |
284f4730 | 1319 | |
0f7a8fee JB |
1320 | if (dp) |
1321 | { | |
9b8eb840 | 1322 | Lisp_Object obj; |
0f7a8fee | 1323 | |
9b8eb840 | 1324 | obj = DISP_CHAR_VECTOR (dp, lose); |
054c8675 | 1325 | if (NILP (obj)) |
8e91f441 RS |
1326 | { |
1327 | /* Do it only for char codes | |
1328 | that by default display as themselves. */ | |
1329 | if (lose >= 0x20 && lose <= 0x7e) | |
1330 | no_redisplay = direct_output_for_insert (lose); | |
1331 | } | |
8c18cbfb | 1332 | else if (VECTORP (obj) |
054c8675 | 1333 | && XVECTOR (obj)->size == 1 |
8c18cbfb KH |
1334 | && (obj = XVECTOR (obj)->contents[0], |
1335 | INTEGERP (obj)) | |
054c8675 RS |
1336 | /* Insist face not specified in glyph. */ |
1337 | && (XINT (obj) & ((-1) << 8)) == 0) | |
bd48a052 RS |
1338 | no_redisplay |
1339 | = direct_output_for_insert (XINT (obj)); | |
0f7a8fee JB |
1340 | } |
1341 | else | |
1342 | { | |
1343 | if (lose >= 0x20 && lose <= 0x7e) | |
1344 | no_redisplay = direct_output_for_insert (lose); | |
1345 | } | |
284f4730 JB |
1346 | } |
1347 | goto directly_done; | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | /* Here for a command that isn't executed directly */ | |
1352 | ||
1353 | nonundocount = 0; | |
d8bcf58e | 1354 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1355 | Fundo_boundary (); |
258bf746 | 1356 | Fcommand_execute (this_command, Qnil); |
284f4730 | 1357 | |
284f4730 | 1358 | } |
a764a753 | 1359 | directly_done: ; |
284f4730 | 1360 | |
a98ea3f9 RS |
1361 | /* Note that the value cell will never directly contain nil |
1362 | if the symbol is a local variable. */ | |
1363 | if (!NILP (XSYMBOL (Qpost_command_hook)->value) && !NILP (Vrun_hooks)) | |
1364 | safe_run_hooks (Qpost_command_hook); | |
86e5706b | 1365 | |
8a792f3a | 1366 | if (!NILP (Vdeferred_action_list)) |
3ef14e46 | 1367 | safe_run_hooks (Qdeferred_action_function); |
8a792f3a | 1368 | |
284f4730 | 1369 | /* If there is a prefix argument, |
6c7178b9 KH |
1370 | 1) We don't want Vlast_command to be ``universal-argument'' |
1371 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1372 | 2) we want to leave echoing on so that the prefix will be |
1373 | echoed as part of this key sequence, so don't call | |
1374 | cancel_echoing, and | |
1375 | 3) we want to leave this_command_key_count non-zero, so that | |
1376 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1377 | not echo it a second time. |
1378 | ||
1379 | If the command didn't actually create a prefix arg, | |
1380 | but is merely a frame event that is transparent to prefix args, | |
1381 | then the above doesn't apply. */ | |
1382 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1383 | { |
6c7178b9 | 1384 | current_kboard->Vlast_command = this_command; |
284f4730 JB |
1385 | cancel_echoing (); |
1386 | this_command_key_count = 0; | |
1387 | } | |
86e5706b | 1388 | |
88ce066e | 1389 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1390 | { |
1391 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1392 | { | |
1393 | current_buffer->mark_active = Qnil; | |
1394 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1395 | } | |
1396 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1397 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1398 | } | |
ff4b06d3 KH |
1399 | |
1400 | finalize: | |
1401 | /* Install chars successfully executed in kbd macro. */ | |
1402 | ||
d8bcf58e KH |
1403 | if (!NILP (current_kboard->defining_kbd_macro) |
1404 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1405 | finalize_kbd_macro_chars (); |
1406 | ||
c5fdd383 | 1407 | #ifdef MULTI_KBOARD |
604ccd1d | 1408 | if (!was_locked) |
1e8bd3da | 1409 | any_kboard_state (); |
ff4b06d3 | 1410 | #endif |
284f4730 JB |
1411 | } |
1412 | } | |
1c9784c9 | 1413 | |
0bc3db2b RS |
1414 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1415 | ||
1416 | static Lisp_Object | |
1417 | safe_run_hooks_1 (hook) | |
1418 | Lisp_Object hook; | |
1419 | { | |
1420 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1421 | } | |
1422 | ||
1423 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1424 | ||
1425 | static Lisp_Object | |
1426 | safe_run_hooks_error (data) | |
1427 | Lisp_Object data; | |
1428 | { | |
1429 | Fset (Vinhibit_quit, Qnil); | |
1430 | } | |
1431 | ||
1c9784c9 KH |
1432 | /* If we get an error while running the hook, cause the hook variable |
1433 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1434 | to mysteriously evaporate. */ | |
0bc3db2b | 1435 | |
1c9784c9 KH |
1436 | static void |
1437 | safe_run_hooks (hook) | |
a98ea3f9 | 1438 | Lisp_Object hook; |
1c9784c9 | 1439 | { |
68553292 | 1440 | Lisp_Object value; |
1c9784c9 | 1441 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1442 | specbind (Qinhibit_quit, hook); |
1443 | ||
1444 | internal_condition_case (safe_run_hooks_1, Qerror, safe_run_hooks_error); | |
1c9784c9 KH |
1445 | |
1446 | unbind_to (count, Qnil); | |
1447 | } | |
284f4730 JB |
1448 | \f |
1449 | /* Number of seconds between polling for input. */ | |
1450 | int polling_period; | |
1451 | ||
eb8c3be9 | 1452 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1453 | int poll_suppress_count; |
1454 | ||
36922b18 | 1455 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1456 | int polling_for_input; |
1457 | ||
36922b18 RS |
1458 | #ifdef POLL_FOR_INPUT |
1459 | ||
284f4730 JB |
1460 | /* Handle an alarm once each second and read pending input |
1461 | so as to handle a C-g if it comces in. */ | |
1462 | ||
1463 | SIGTYPE | |
91c049d4 RS |
1464 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1465 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1466 | { |
9ac0d9e0 JB |
1467 | if (interrupt_input_blocked == 0 |
1468 | && !waiting_for_input) | |
1469 | read_avail_input (0); | |
284f4730 JB |
1470 | signal (SIGALRM, input_poll_signal); |
1471 | alarm (polling_period); | |
1472 | } | |
1473 | ||
1474 | #endif | |
1475 | ||
1476 | /* Begin signals to poll for input, if they are appropriate. | |
1477 | This function is called unconditionally from various places. */ | |
1478 | ||
1479 | start_polling () | |
1480 | { | |
1481 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1482 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1483 | { |
1484 | poll_suppress_count--; | |
1485 | if (poll_suppress_count == 0) | |
1486 | { | |
1487 | signal (SIGALRM, input_poll_signal); | |
1488 | polling_for_input = 1; | |
1489 | alarm (polling_period); | |
1490 | } | |
1491 | } | |
1492 | #endif | |
1493 | } | |
1494 | ||
1d3195db RS |
1495 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1496 | ||
1497 | int | |
1498 | input_polling_used () | |
1499 | { | |
1500 | #ifdef POLL_FOR_INPUT | |
1501 | return read_socket_hook && !interrupt_input; | |
1502 | #else | |
1503 | return 0; | |
1504 | #endif | |
1505 | } | |
1506 | ||
284f4730 JB |
1507 | /* Turn off polling. */ |
1508 | ||
1509 | stop_polling () | |
1510 | { | |
1511 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1512 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1513 | { |
1514 | if (poll_suppress_count == 0) | |
1515 | { | |
1516 | polling_for_input = 0; | |
1517 | alarm (0); | |
1518 | } | |
1519 | poll_suppress_count++; | |
1520 | } | |
1521 | #endif | |
1522 | } | |
fe8aeef3 RS |
1523 | |
1524 | /* Set the value of poll_suppress_count to COUNT | |
1525 | and start or stop polling accordingly. */ | |
1526 | ||
1527 | void | |
1528 | set_poll_suppress_count (count) | |
1529 | int count; | |
1530 | { | |
1531 | #ifdef POLL_FOR_INPUT | |
1532 | if (count == 0 && poll_suppress_count != 0) | |
1533 | { | |
1534 | poll_suppress_count = 1; | |
1535 | start_polling (); | |
1536 | } | |
1537 | else if (count != 0 && poll_suppress_count == 0) | |
1538 | { | |
1539 | stop_polling (); | |
1540 | } | |
1541 | poll_suppress_count = count; | |
1542 | #endif | |
1543 | } | |
f4eef8b4 | 1544 | |
d0a57728 RS |
1545 | /* Bind polling_period to a value at least N. |
1546 | But don't decrease it. */ | |
1547 | ||
f4eef8b4 RS |
1548 | bind_polling_period (n) |
1549 | int n; | |
1550 | { | |
1551 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1552 | int new = polling_period; |
1553 | ||
1554 | if (n > new) | |
1555 | new = n; | |
1556 | ||
f4eef8b4 | 1557 | stop_polling (); |
d0a57728 RS |
1558 | specbind (Qpolling_period, make_number (new)); |
1559 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1560 | start_polling (); |
1561 | #endif | |
1562 | } | |
284f4730 | 1563 | \f |
6da3dd3a RS |
1564 | /* Apply the control modifier to CHARACTER. */ |
1565 | ||
faf5e407 JB |
1566 | int |
1567 | make_ctrl_char (c) | |
1568 | int c; | |
1569 | { | |
d205953b JB |
1570 | /* Save the upper bits here. */ |
1571 | int upper = c & ~0177; | |
1572 | ||
1573 | c &= 0177; | |
1574 | ||
1575 | /* Everything in the columns containing the upper-case letters | |
1576 | denotes a control character. */ | |
1577 | if (c >= 0100 && c < 0140) | |
1578 | { | |
1579 | int oc = c; | |
1580 | c &= ~0140; | |
1581 | /* Set the shift modifier for a control char | |
1582 | made from a shifted letter. But only for letters! */ | |
1583 | if (oc >= 'A' && oc <= 'Z') | |
1584 | c |= shift_modifier; | |
1585 | } | |
1586 | ||
1587 | /* The lower-case letters denote control characters too. */ | |
1588 | else if (c >= 'a' && c <= 'z') | |
1589 | c &= ~0140; | |
1590 | ||
1591 | /* Include the bits for control and shift | |
1592 | only if the basic ASCII code can't indicate them. */ | |
1593 | else if (c >= ' ') | |
1594 | c |= ctrl_modifier; | |
1595 | ||
1596 | /* Replace the high bits. */ | |
1597 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1598 | |
1599 | return c; | |
1600 | } | |
1601 | ||
1602 | ||
1603 | \f | |
284f4730 JB |
1604 | /* Input of single characters from keyboard */ |
1605 | ||
1606 | Lisp_Object print_help (); | |
1607 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1608 | static void record_char (); |
284f4730 | 1609 | |
c5fdd383 KH |
1610 | #ifdef MULTI_KBOARD |
1611 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1612 | #endif |
beecf6a1 | 1613 | |
284f4730 JB |
1614 | /* read a character from the keyboard; call the redisplay if needed */ |
1615 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1616 | -1 means do not do redisplay, but do do autosaving. | |
1617 | 1 means do both. */ | |
1618 | ||
7d6de002 RS |
1619 | /* The arguments MAPS and NMAPS are for menu prompting. |
1620 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1621 | ||
1622 | PREV_EVENT is the previous input event, or nil if we are reading | |
1623 | the first event of a key sequence. | |
1624 | ||
83d68044 | 1625 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1626 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1627 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1628 | |
1629 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1630 | |
284f4730 | 1631 | Lisp_Object |
7d6de002 | 1632 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1633 | int commandflag; |
7d6de002 RS |
1634 | int nmaps; |
1635 | Lisp_Object *maps; | |
1636 | Lisp_Object prev_event; | |
1637 | int *used_mouse_menu; | |
284f4730 JB |
1638 | { |
1639 | register Lisp_Object c; | |
1640 | int count; | |
410d4de9 | 1641 | jmp_buf local_getcjmp; |
284f4730 | 1642 | jmp_buf save_jump; |
a1341f75 | 1643 | int key_already_recorded = 0; |
017c7cb6 | 1644 | Lisp_Object tem, save; |
e4fe371d RS |
1645 | Lisp_Object also_record; |
1646 | also_record = Qnil; | |
284f4730 | 1647 | |
71918b75 RS |
1648 | before_command_key_count = this_command_key_count; |
1649 | before_command_echo_length = echo_length (); | |
1650 | ||
7f07d5ca RS |
1651 | retry: |
1652 | ||
24597608 | 1653 | if (CONSP (Vunread_command_events)) |
284f4730 | 1654 | { |
24597608 RS |
1655 | c = XCONS (Vunread_command_events)->car; |
1656 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
284f4730 | 1657 | |
284f4730 JB |
1658 | if (this_command_key_count == 0) |
1659 | goto reread_first; | |
1660 | else | |
1661 | goto reread; | |
1662 | } | |
1663 | ||
86e5706b RS |
1664 | if (unread_command_char != -1) |
1665 | { | |
18cd2eeb | 1666 | XSETINT (c, unread_command_char); |
86e5706b RS |
1667 | unread_command_char = -1; |
1668 | ||
1669 | if (this_command_key_count == 0) | |
1670 | goto reread_first; | |
1671 | else | |
1672 | goto reread; | |
1673 | } | |
1674 | ||
71918b75 RS |
1675 | /* If there is no function key translated before |
1676 | reset-this-command-lengths takes effect, forget about it. */ | |
1677 | before_command_restore_flag = 0; | |
1678 | ||
284f4730 JB |
1679 | if (!NILP (Vexecuting_macro)) |
1680 | { | |
07d2b8de | 1681 | #ifdef MULTI_FRAME |
fce33686 JB |
1682 | /* We set this to Qmacro; since that's not a frame, nobody will |
1683 | try to switch frames on us, and the selected window will | |
1684 | remain unchanged. | |
1685 | ||
1686 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1687 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1688 | real event came from. Normally, a switch-frame event selects |
1689 | internal_last_event_frame after each command is read, but | |
1690 | events read from a macro should never cause a new frame to be | |
1691 | selected. */ | |
4c52b668 | 1692 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
07d2b8de | 1693 | #endif |
fce33686 | 1694 | |
663258f2 JB |
1695 | /* Exit the macro if we are at the end. |
1696 | Also, some things replace the macro with t | |
1697 | to force an early exit. */ | |
1698 | if (EQ (Vexecuting_macro, Qt) | |
1699 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1700 | { |
18cd2eeb | 1701 | XSETINT (c, -1); |
284f4730 JB |
1702 | return c; |
1703 | } | |
df0f2ba1 | 1704 | |
284f4730 | 1705 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1706 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1707 | && (XINT (c) & 0x80)) |
bb9e9bed | 1708 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1709 | |
284f4730 JB |
1710 | executing_macro_index++; |
1711 | ||
1712 | goto from_macro; | |
1713 | } | |
1714 | ||
cd21b839 JB |
1715 | if (!NILP (unread_switch_frame)) |
1716 | { | |
1717 | c = unread_switch_frame; | |
1718 | unread_switch_frame = Qnil; | |
1719 | ||
1720 | /* This event should make it into this_command_keys, and get echoed | |
f4255cd1 JB |
1721 | again, so we go to reread_first, rather than reread. */ |
1722 | goto reread_first; | |
cd21b839 JB |
1723 | } |
1724 | ||
410d4de9 RS |
1725 | if (commandflag >= 0 && !input_pending && !detect_input_pending ()) |
1726 | redisplay (); | |
e9bf89a0 | 1727 | |
410d4de9 RS |
1728 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
1729 | if (echo_area_glyphs && *echo_area_glyphs | |
1730 | && echo_area_glyphs != current_kboard->echobuf) | |
1731 | cancel_echoing (); | |
1732 | else | |
1733 | /* If already echoing, continue. */ | |
1734 | echo_dash (); | |
284f4730 | 1735 | |
410d4de9 RS |
1736 | /* Try reading a character via menu prompting in the minibuf. |
1737 | Try this before the sit-for, because the sit-for | |
1738 | would do the wrong thing if we are supposed to do | |
1739 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1740 | after a mouse event so don't try a minibuf menu. */ | |
1741 | c = Qnil; | |
1742 | if (nmaps > 0 && INTERACTIVE | |
1743 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
1744 | /* Don't bring up a menu if we already have another event. */ | |
1745 | && NILP (Vunread_command_events) | |
1746 | && unread_command_char < 0 | |
1747 | && !detect_input_pending ()) | |
1748 | { | |
1749 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
1750 | if (! NILP (c)) | |
1751 | { | |
1752 | key_already_recorded = 1; | |
1753 | goto non_reread_1; | |
1754 | } | |
1755 | } | |
284f4730 | 1756 | |
410d4de9 RS |
1757 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
1758 | We will do that below, temporarily for short sections of code, | |
1759 | when appropriate. local_getcjmp must be in effect | |
1760 | around any call to sit_for or kbd_buffer_get_event; | |
1761 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 1762 | |
410d4de9 | 1763 | if (_setjmp (local_getcjmp)) |
284f4730 | 1764 | { |
18cd2eeb | 1765 | XSETINT (c, quit_char); |
07d2b8de | 1766 | #ifdef MULTI_FRAME |
4c52b668 KH |
1767 | XSETFRAME (internal_last_event_frame, selected_frame); |
1768 | Vlast_event_frame = internal_last_event_frame; | |
07d2b8de | 1769 | #endif |
04904c29 RS |
1770 | /* If we report the quit char as an event, |
1771 | don't do so more than once. */ | |
1772 | if (!NILP (Vinhibit_quit)) | |
1773 | Vquit_flag = Qnil; | |
284f4730 | 1774 | |
c5fdd383 | 1775 | #ifdef MULTI_KBOARD |
df0f2ba1 | 1776 | { |
c5fdd383 KH |
1777 | KBOARD *kb = FRAME_KBOARD (selected_frame); |
1778 | if (kb != current_kboard) | |
df0f2ba1 | 1779 | { |
c5fdd383 | 1780 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
1781 | /* We shouldn't get here if we were in single-kboard mode! */ |
1782 | if (single_kboard) | |
df0f2ba1 KH |
1783 | abort (); |
1784 | while (CONSP (*tailp)) | |
1785 | tailp = &XCONS (*tailp)->cdr; | |
1786 | if (!NILP (*tailp)) | |
1787 | abort (); | |
1788 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
1789 | kb->kbd_queue_has_data = 1; |
1790 | current_kboard = kb; | |
1791 | longjmp (wrong_kboard_jmpbuf, 1); | |
df0f2ba1 KH |
1792 | } |
1793 | } | |
1794 | #endif | |
284f4730 JB |
1795 | goto non_reread; |
1796 | } | |
1797 | ||
284f4730 JB |
1798 | /* If in middle of key sequence and minibuffer not active, |
1799 | start echoing if enough time elapses. */ | |
410d4de9 | 1800 | |
c5fdd383 | 1801 | if (minibuf_level == 0 && !current_kboard->immediate_echo |
6c6083a9 | 1802 | && this_command_key_count > 0 |
27203ead | 1803 | && ! noninteractive |
284f4730 JB |
1804 | && echo_keystrokes > 0 |
1805 | && (echo_area_glyphs == 0 || *echo_area_glyphs == 0)) | |
1806 | { | |
1807 | Lisp_Object tem0; | |
1808 | ||
7d6de002 RS |
1809 | /* After a mouse event, start echoing right away. |
1810 | This is because we are probably about to display a menu, | |
1811 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 1812 | if (EVENT_HAS_PARAMETERS (prev_event)) |
284f4730 | 1813 | echo (); |
7d6de002 RS |
1814 | else |
1815 | { | |
410d4de9 RS |
1816 | save_getcjmp (save_jump); |
1817 | restore_getcjmp (local_getcjmp); | |
7d6de002 | 1818 | tem0 = sit_for (echo_keystrokes, 0, 1, 1); |
410d4de9 | 1819 | restore_getcjmp (save_jump); |
7d6de002 RS |
1820 | if (EQ (tem0, Qt)) |
1821 | echo (); | |
1822 | } | |
284f4730 JB |
1823 | } |
1824 | ||
410d4de9 | 1825 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
1826 | |
1827 | if (commandflag != 0 | |
1828 | && auto_save_interval > 0 | |
51172b6d | 1829 | && num_nonmacro_input_chars - last_auto_save > max (auto_save_interval, 20) |
284f4730 JB |
1830 | && !detect_input_pending ()) |
1831 | { | |
284f4730 | 1832 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
1833 | /* Hooks can actually change some buffers in auto save. */ |
1834 | redisplay (); | |
284f4730 JB |
1835 | } |
1836 | ||
8150596a | 1837 | /* Try reading using an X menu. |
24597608 RS |
1838 | This is never confused with reading using the minibuf |
1839 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
1840 | does not pass on any keymaps. */ | |
410d4de9 | 1841 | |
24597608 | 1842 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
1843 | && !NILP (prev_event) |
1844 | && EVENT_HAS_PARAMETERS (prev_event) | |
1845 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
24597608 RS |
1846 | /* Don't bring up a menu if we already have another event. */ |
1847 | && NILP (Vunread_command_events) | |
b8556aee | 1848 | && unread_command_char < 0) |
8150596a | 1849 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); |
7d6de002 | 1850 | |
410d4de9 RS |
1851 | /* Maybe autosave and/or garbage collect due to idleness. */ |
1852 | ||
26c1639e | 1853 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
1854 | { |
1855 | int delay_level, buffer_size; | |
1856 | ||
410d4de9 RS |
1857 | /* Slow down auto saves logarithmically in size of current buffer, |
1858 | and garbage collect while we're at it. */ | |
7d6de002 RS |
1859 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
1860 | last_non_minibuf_size = Z - BEG; | |
1861 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
1862 | delay_level = 0; | |
1863 | while (buffer_size > 64) | |
1864 | delay_level++, buffer_size -= buffer_size >> 2; | |
1865 | if (delay_level < 4) delay_level = 4; | |
1866 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
1867 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
1868 | ||
1869 | /* Auto save if enough time goes by without input. */ | |
1870 | if (commandflag != 0 | |
51172b6d | 1871 | && num_nonmacro_input_chars > last_auto_save |
8c18cbfb | 1872 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
1873 | && XINT (Vauto_save_timeout) > 0) |
1874 | { | |
1875 | Lisp_Object tem0; | |
1876 | int delay = delay_level * XFASTINT (Vauto_save_timeout) / 4; | |
410d4de9 RS |
1877 | |
1878 | save_getcjmp (save_jump); | |
1879 | restore_getcjmp (local_getcjmp); | |
7d6de002 | 1880 | tem0 = sit_for (delay, 0, 1, 1); |
410d4de9 RS |
1881 | restore_getcjmp (save_jump); |
1882 | ||
7d6de002 RS |
1883 | if (EQ (tem0, Qt)) |
1884 | { | |
7d6de002 | 1885 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
1886 | |
1887 | /* If we have auto-saved and there is still no input | |
1888 | available, garbage collect if there has been enough | |
1889 | consing going on to make it worthwhile. */ | |
1890 | if (!detect_input_pending () | |
1891 | && consing_since_gc > gc_cons_threshold / 2) | |
ef8fd672 | 1892 | Fgarbage_collect (); |
410d4de9 | 1893 | |
ef8fd672 | 1894 | redisplay (); |
7d6de002 RS |
1895 | } |
1896 | } | |
1897 | } | |
284f4730 | 1898 | |
410d4de9 RS |
1899 | /* Read something from current KBOARD's side queue, if possible. */ |
1900 | ||
beecf6a1 | 1901 | if (NILP (c)) |
1e12dd87 | 1902 | { |
c5fdd383 | 1903 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 1904 | { |
c5fdd383 | 1905 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 1906 | abort (); |
c5fdd383 KH |
1907 | c = XCONS (current_kboard->kbd_queue)->car; |
1908 | current_kboard->kbd_queue | |
1909 | = XCONS (current_kboard->kbd_queue)->cdr; | |
1910 | if (NILP (current_kboard->kbd_queue)) | |
1911 | current_kboard->kbd_queue_has_data = 0; | |
4c52b668 KH |
1912 | input_pending = readable_events (); |
1913 | #ifdef MULTI_FRAME | |
1914 | if (EVENT_HAS_PARAMETERS (c) | |
1915 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
1916 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
1917 | Vlast_event_frame = internal_last_event_frame; | |
1918 | #endif | |
beecf6a1 | 1919 | } |
1e8bd3da RS |
1920 | } |
1921 | ||
c5fdd383 | 1922 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1923 | /* If current_kboard's side queue is empty check the other kboards. |
1924 | If one of them has data that we have not yet seen here, | |
1925 | switch to it and process the data waiting for it. | |
1926 | ||
1927 | Note: if the events queued up for another kboard | |
1928 | have already been seen here, and therefore are not a complete command, | |
1929 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
1930 | That's to avoid an infinite loop switching between kboards here. */ | |
1931 | if (NILP (c) && !single_kboard) | |
1932 | { | |
1933 | KBOARD *kb; | |
1934 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
1935 | if (kb->kbd_queue_has_data) | |
1936 | { | |
1937 | current_kboard = kb; | |
1938 | longjmp (wrong_kboard_jmpbuf, 1); | |
1939 | } | |
1940 | } | |
df0f2ba1 KH |
1941 | #endif |
1942 | ||
410d4de9 RS |
1943 | wrong_kboard: |
1944 | ||
1945 | stop_polling (); | |
1946 | ||
1e8bd3da RS |
1947 | /* Finally, we read from the main queue, |
1948 | and if that gives us something we can't use yet, we put it on the | |
1949 | appropriate side queue and try again. */ | |
410d4de9 | 1950 | |
1e8bd3da RS |
1951 | if (NILP (c)) |
1952 | { | |
1953 | KBOARD *kb; | |
1954 | ||
1e8bd3da | 1955 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
1956 | save_getcjmp (save_jump); |
1957 | restore_getcjmp (local_getcjmp); | |
83d68044 | 1958 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
1959 | restore_getcjmp (save_jump); |
1960 | ||
c5fdd383 | 1961 | #ifdef MULTI_KBOARD |
410d4de9 | 1962 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
1963 | { |
1964 | Lisp_Object *tailp = &kb->kbd_queue; | |
1965 | while (CONSP (*tailp)) | |
1966 | tailp = &XCONS (*tailp)->cdr; | |
1967 | if (!NILP (*tailp)) | |
1968 | abort (); | |
1969 | *tailp = Fcons (c, Qnil); | |
1970 | kb->kbd_queue_has_data = 1; | |
46b84797 | 1971 | c = Qnil; |
1e8bd3da RS |
1972 | if (single_kboard) |
1973 | goto wrong_kboard; | |
1974 | current_kboard = kb; | |
1975 | longjmp (wrong_kboard_jmpbuf, 1); | |
df0f2ba1 | 1976 | } |
1e8bd3da | 1977 | #endif |
beecf6a1 | 1978 | } |
1e8bd3da | 1979 | |
284f4730 | 1980 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 1981 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
1982 | Fkill_emacs (make_number (1)); |
1983 | ||
8c18cbfb | 1984 | if (INTEGERP (c)) |
80645119 JB |
1985 | { |
1986 | /* Add in any extra modifiers, where appropriate. */ | |
1987 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
1988 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
1989 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 1990 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
1991 | |
1992 | /* Transfer any other modifier bits directly from | |
1993 | extra_keyboard_modifiers to c. Ignore the actual character code | |
1994 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 1995 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 1996 | } |
9fa4395d | 1997 | |
284f4730 JB |
1998 | non_reread: |
1999 | ||
284f4730 JB |
2000 | start_polling (); |
2001 | ||
410d4de9 RS |
2002 | if (NILP (c)) |
2003 | { | |
2004 | if (commandflag >= 0 | |
2005 | && !input_pending && !detect_input_pending ()) | |
2006 | redisplay (); | |
2007 | ||
2008 | goto wrong_kboard; | |
2009 | } | |
2010 | ||
2011 | non_reread_1: | |
2012 | ||
dfd11da7 RS |
2013 | /* Buffer switch events are only for internal wakeups |
2014 | so don't show them to the user. */ | |
8c18cbfb | 2015 | if (BUFFERP (c)) |
dfd11da7 RS |
2016 | return c; |
2017 | ||
a1341f75 RS |
2018 | if (key_already_recorded) |
2019 | return c; | |
2020 | ||
7f07d5ca RS |
2021 | /* Process special events within read_char |
2022 | and loop around to read another event. */ | |
017c7cb6 RS |
2023 | save = Vquit_flag; |
2024 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2025 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2026 | c, 0, 0), 1); | |
017c7cb6 | 2027 | Vquit_flag = save; |
7f07d5ca RS |
2028 | |
2029 | if (!NILP (tem)) | |
2030 | { | |
2031 | last_input_char = c; | |
2032 | Fcommand_execute (tem, Qnil); | |
2033 | goto retry; | |
2034 | } | |
2035 | ||
dfd11da7 RS |
2036 | /* Wipe the echo area. */ |
2037 | echo_area_glyphs = 0; | |
284f4730 JB |
2038 | |
2039 | /* Handle things that only apply to characters. */ | |
8c18cbfb | 2040 | if (INTEGERP (c)) |
284f4730 JB |
2041 | { |
2042 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2043 | if (XINT (c) == -1) |
284f4730 JB |
2044 | return c; |
2045 | ||
8c18cbfb | 2046 | if (STRINGP (Vkeyboard_translate_table) |
f4255cd1 JB |
2047 | && XSTRING (Vkeyboard_translate_table)->size > XFASTINT (c)) |
2048 | XSETINT (c, XSTRING (Vkeyboard_translate_table)->data[XFASTINT (c)]); | |
284f4730 JB |
2049 | } |
2050 | ||
e4fe371d RS |
2051 | /* If this event is a mouse click in the menu bar, |
2052 | return just menu-bar for now. Modify the mouse click event | |
2053 | so we won't do this twice, then queue it up. */ | |
2054 | if (EVENT_HAS_PARAMETERS (c) | |
2055 | && CONSP (XCONS (c)->cdr) | |
2056 | && CONSP (EVENT_START (c)) | |
2057 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2058 | { |
e4fe371d | 2059 | Lisp_Object posn; |
284f4730 | 2060 | |
e4fe371d RS |
2061 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2062 | /* Handle menu-bar events: | |
2063 | insert the dummy prefix event `menu-bar'. */ | |
2064 | if (EQ (posn, Qmenu_bar)) | |
2065 | { | |
2066 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2067 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2068 | |
e4fe371d RS |
2069 | also_record = c; |
2070 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2071 | c = posn; | |
284f4730 | 2072 | } |
284f4730 JB |
2073 | } |
2074 | ||
e4fe371d RS |
2075 | record_char (c); |
2076 | if (! NILP (also_record)) | |
2077 | record_char (also_record); | |
51172b6d | 2078 | |
284f4730 JB |
2079 | from_macro: |
2080 | reread_first: | |
71918b75 RS |
2081 | before_command_key_count = this_command_key_count; |
2082 | before_command_echo_length = echo_length (); | |
284f4730 | 2083 | |
b8556aee | 2084 | /* Don't echo mouse motion events. */ |
8ea231fc RS |
2085 | if (echo_keystrokes |
2086 | && ! (EVENT_HAS_PARAMETERS (c) | |
2087 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
e4fe371d RS |
2088 | { |
2089 | echo_char (c); | |
2090 | if (! NILP (also_record)) | |
2091 | echo_char (also_record); | |
2092 | } | |
b8556aee | 2093 | |
db8c1663 | 2094 | /* Record this character as part of the current key. */ |
b8556aee | 2095 | add_command_key (c); |
e4fe371d RS |
2096 | if (! NILP (also_record)) |
2097 | add_command_key (also_record); | |
284f4730 JB |
2098 | |
2099 | /* Re-reading in the middle of a command */ | |
2100 | reread: | |
2101 | last_input_char = c; | |
2102 | num_input_chars++; | |
2103 | ||
2104 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2105 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2106 | { |
2107 | Lisp_Object tem0; | |
2108 | count = specpdl_ptr - specpdl; | |
2109 | ||
2110 | record_unwind_protect (Fset_window_configuration, | |
2111 | Fcurrent_window_configuration (Qnil)); | |
2112 | ||
2113 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2114 | if (STRINGP (tem0)) |
284f4730 JB |
2115 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2116 | ||
2117 | cancel_echoing (); | |
3cb81011 KH |
2118 | do |
2119 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2120 | while (BUFFERP (c)); |
ff11dfa1 | 2121 | /* Remove the help from the frame */ |
284f4730 | 2122 | unbind_to (count, Qnil); |
410d4de9 | 2123 | |
284f4730 JB |
2124 | redisplay (); |
2125 | if (EQ (c, make_number (040))) | |
2126 | { | |
2127 | cancel_echoing (); | |
3cb81011 KH |
2128 | do |
2129 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2130 | while (BUFFERP (c)); |
284f4730 JB |
2131 | } |
2132 | } | |
2133 | ||
2134 | return c; | |
2135 | } | |
2136 | ||
ecb7cb34 KH |
2137 | /* Return 1 if should recognize C as "the help character". */ |
2138 | ||
2139 | int | |
2140 | help_char_p (c) | |
2141 | Lisp_Object c; | |
2142 | { | |
2143 | Lisp_Object tail; | |
2144 | ||
2145 | if (EQ (c, Vhelp_char)) | |
2146 | return 1; | |
2147 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2148 | if (EQ (c, XCONS (tail)->car)) | |
2149 | return 1; | |
2150 | return 0; | |
2151 | } | |
2152 | ||
e4fe371d RS |
2153 | /* Record the input event C in various ways. */ |
2154 | ||
2155 | static void | |
2156 | record_char (c) | |
2157 | Lisp_Object c; | |
2158 | { | |
2159 | total_keys++; | |
2160 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2161 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2162 | recent_keys_index = 0; | |
2163 | ||
2164 | /* Write c to the dribble file. If c is a lispy event, write | |
2165 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2166 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2167 | if (dribble) | |
2168 | { | |
2169 | if (INTEGERP (c)) | |
2170 | { | |
2171 | if (XUINT (c) < 0x100) | |
2172 | putc (XINT (c), dribble); | |
2173 | else | |
6de34814 | 2174 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2175 | } |
2176 | else | |
2177 | { | |
2178 | Lisp_Object dribblee; | |
2179 | ||
2180 | /* If it's a structured event, take the event header. */ | |
2181 | dribblee = EVENT_HEAD (c); | |
2182 | ||
2183 | if (SYMBOLP (dribblee)) | |
2184 | { | |
2185 | putc ('<', dribble); | |
2186 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
2187 | XSYMBOL (dribblee)->name->size, | |
2188 | dribble); | |
2189 | putc ('>', dribble); | |
2190 | } | |
2191 | } | |
2192 | ||
2193 | fflush (dribble); | |
2194 | } | |
2195 | ||
2196 | store_kbd_macro_char (c); | |
2197 | ||
2198 | num_nonmacro_input_chars++; | |
2199 | } | |
2200 | ||
284f4730 JB |
2201 | Lisp_Object |
2202 | print_help (object) | |
2203 | Lisp_Object object; | |
2204 | { | |
622de3e9 | 2205 | struct buffer *old = current_buffer; |
284f4730 | 2206 | Fprinc (object, Qnil); |
622de3e9 KH |
2207 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2208 | call0 (intern ("help-mode")); | |
2209 | set_buffer_internal (old); | |
284f4730 JB |
2210 | return Qnil; |
2211 | } | |
2212 | ||
2213 | /* Copy out or in the info on where C-g should throw to. | |
2214 | This is used when running Lisp code from within get_char, | |
2215 | in case get_char is called recursively. | |
2216 | See read_process_output. */ | |
2217 | ||
2218 | save_getcjmp (temp) | |
2219 | jmp_buf temp; | |
2220 | { | |
2221 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2222 | } | |
2223 | ||
2224 | restore_getcjmp (temp) | |
2225 | jmp_buf temp; | |
2226 | { | |
2227 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2228 | } | |
284f4730 | 2229 | \f |
2eb6bfbe RM |
2230 | #ifdef HAVE_MOUSE |
2231 | ||
284f4730 JB |
2232 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2233 | of this function. */ | |
a9d77f1f | 2234 | |
284f4730 JB |
2235 | static Lisp_Object |
2236 | tracking_off (old_value) | |
2237 | Lisp_Object old_value; | |
2238 | { | |
71edead1 RS |
2239 | do_mouse_tracking = old_value; |
2240 | if (NILP (old_value)) | |
284f4730 | 2241 | { |
284f4730 JB |
2242 | /* Redisplay may have been preempted because there was input |
2243 | available, and it assumes it will be called again after the | |
2244 | input has been processed. If the only input available was | |
2245 | the sort that we have just disabled, then we need to call | |
2246 | redisplay. */ | |
2247 | if (!readable_events ()) | |
2248 | { | |
2249 | redisplay_preserve_echo_area (); | |
2250 | get_input_pending (&input_pending); | |
2251 | } | |
2252 | } | |
2253 | } | |
2254 | ||
2255 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2256 | "Evaluate BODY with mouse movement events enabled.\n\ |
2257 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2258 | you can read with `read-event'.\n\ | |
2259 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2260 | (args) |
2261 | Lisp_Object args; | |
2262 | { | |
2263 | int count = specpdl_ptr - specpdl; | |
2264 | Lisp_Object val; | |
2265 | ||
a9d77f1f | 2266 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2267 | |
f3253854 | 2268 | do_mouse_tracking = Qt; |
df0f2ba1 | 2269 | |
284f4730 JB |
2270 | val = Fprogn (args); |
2271 | return unbind_to (count, val); | |
2272 | } | |
2eb6bfbe | 2273 | |
f3253854 KH |
2274 | /* If mouse has moved on some frame, return one of those frames. |
2275 | Return 0 otherwise. */ | |
2276 | ||
2277 | static FRAME_PTR | |
2278 | some_mouse_moved () | |
2279 | { | |
2280 | Lisp_Object tail, frame; | |
2281 | ||
2282 | FOR_EACH_FRAME (tail, frame) | |
2283 | { | |
2284 | if (XFRAME (frame)->mouse_moved) | |
2285 | return XFRAME (frame); | |
2286 | } | |
2287 | ||
2288 | return 0; | |
2289 | } | |
2290 | ||
2eb6bfbe | 2291 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2292 | \f |
2293 | /* Low level keyboard/mouse input. | |
2294 | kbd_buffer_store_event places events in kbd_buffer, and | |
2295 | kbd_buffer_get_event retrieves them. | |
2296 | mouse_moved indicates when the mouse has moved again, and | |
2297 | *mouse_position_hook provides the mouse position. */ | |
2298 | ||
2299 | /* Return true iff there are any events in the queue that read-char | |
2300 | would return. If this returns false, a read-char would block. */ | |
2301 | static int | |
2302 | readable_events () | |
2303 | { | |
beecf6a1 KH |
2304 | if (kbd_fetch_ptr != kbd_store_ptr) |
2305 | return 1; | |
2306 | #ifdef HAVE_MOUSE | |
f3253854 | 2307 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2308 | return 1; |
2309 | #endif | |
1e8bd3da | 2310 | if (single_kboard) |
4c52b668 | 2311 | { |
c5fdd383 | 2312 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2313 | return 1; |
2314 | } | |
2315 | else | |
2316 | { | |
c5fdd383 KH |
2317 | KBOARD *kb; |
2318 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2319 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2320 | return 1; |
2321 | } | |
beecf6a1 | 2322 | return 0; |
a612e298 RS |
2323 | } |
2324 | ||
2325 | /* Set this for debugging, to have a way to get out */ | |
2326 | int stop_character; | |
284f4730 | 2327 | |
c5fdd383 KH |
2328 | #ifdef MULTI_KBOARD |
2329 | static KBOARD * | |
2330 | event_to_kboard (event) | |
5798cf15 KH |
2331 | struct input_event *event; |
2332 | { | |
2333 | Lisp_Object frame; | |
2334 | frame = event->frame_or_window; | |
2335 | if (CONSP (frame)) | |
2336 | frame = XCONS (frame)->car; | |
2337 | else if (WINDOWP (frame)) | |
2338 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2339 | ||
2340 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2341 | For now, just ignore the problem. |
2342 | Also ignore dead frames here. */ | |
2343 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2344 | return 0; |
2345 | else | |
c5fdd383 | 2346 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2347 | } |
2348 | #endif | |
2349 | ||
284f4730 JB |
2350 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2351 | ||
2352 | void | |
2353 | kbd_buffer_store_event (event) | |
2354 | register struct input_event *event; | |
2355 | { | |
2356 | if (event->kind == no_event) | |
2357 | abort (); | |
2358 | ||
2359 | if (event->kind == ascii_keystroke) | |
2360 | { | |
e9bf89a0 | 2361 | register int c = event->code & 0377; |
284f4730 | 2362 | |
faf5e407 JB |
2363 | if (event->modifiers & ctrl_modifier) |
2364 | c = make_ctrl_char (c); | |
2365 | ||
9fd7d808 RS |
2366 | c |= (event->modifiers |
2367 | & (meta_modifier | alt_modifier | |
2368 | | hyper_modifier | super_modifier)); | |
2369 | ||
86e5706b | 2370 | if (c == quit_char) |
284f4730 | 2371 | { |
3e51c7b7 | 2372 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2373 | #ifdef MULTI_KBOARD |
2374 | KBOARD *kb; | |
5798cf15 KH |
2375 | struct input_event *sp; |
2376 | ||
1e8bd3da | 2377 | if (single_kboard |
c5fdd383 KH |
2378 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2379 | kb != current_kboard)) | |
5798cf15 | 2380 | { |
c5fdd383 | 2381 | kb->kbd_queue |
5798cf15 KH |
2382 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2383 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2384 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2385 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2386 | { | |
2387 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2388 | sp = kbd_buffer; | |
2389 | ||
c5fdd383 | 2390 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2391 | { |
2392 | sp->kind = no_event; | |
2393 | sp->frame_or_window = Qnil; | |
2394 | } | |
2395 | } | |
2396 | return; | |
2397 | } | |
2398 | #endif | |
3e51c7b7 | 2399 | |
07d2b8de | 2400 | #ifdef MULTI_FRAME |
284f4730 | 2401 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2402 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2403 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2404 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2405 | { |
9b8eb840 | 2406 | Lisp_Object focus; |
4bb994d1 | 2407 | |
9b8eb840 | 2408 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2409 | if (NILP (focus)) |
beecf6a1 | 2410 | focus = event->frame_or_window; |
4c52b668 KH |
2411 | internal_last_event_frame = focus; |
2412 | Vlast_event_frame = focus; | |
4bb994d1 | 2413 | } |
07d2b8de | 2414 | #endif |
3e51c7b7 | 2415 | |
ffd56f97 | 2416 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2417 | interrupt_signal (); |
2418 | return; | |
2419 | } | |
2420 | ||
2421 | if (c && c == stop_character) | |
2422 | { | |
2423 | sys_suspend (); | |
2424 | return; | |
2425 | } | |
284f4730 JB |
2426 | } |
2427 | ||
beecf6a1 KH |
2428 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2429 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2430 | |
2431 | /* Don't let the very last slot in the buffer become full, | |
2432 | since that would make the two pointers equal, | |
2433 | and that is indistinguishable from an empty buffer. | |
2434 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2435 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2436 | { |
beecf6a1 | 2437 | volatile struct input_event *sp = kbd_store_ptr; |
612b78ef | 2438 | sp->kind = event->kind; |
27203ead RS |
2439 | if (event->kind == selection_request_event) |
2440 | { | |
2441 | /* We must not use the ordinary copying code for this case, | |
2442 | since `part' is an enum and copying it might not copy enough | |
2443 | in this case. */ | |
612b78ef | 2444 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2445 | } |
2446 | else | |
2447 | { | |
612b78ef KH |
2448 | sp->code = event->code; |
2449 | sp->part = event->part; | |
2450 | sp->frame_or_window = event->frame_or_window; | |
2451 | sp->modifiers = event->modifiers; | |
2452 | sp->x = event->x; | |
2453 | sp->y = event->y; | |
2454 | sp->timestamp = event->timestamp; | |
27203ead | 2455 | } |
beecf6a1 KH |
2456 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2457 | - kbd_buffer] | |
7b4aedb9 | 2458 | = event->frame_or_window); |
284f4730 | 2459 | |
beecf6a1 | 2460 | kbd_store_ptr++; |
284f4730 JB |
2461 | } |
2462 | } | |
a612e298 RS |
2463 | \f |
2464 | /* Read one event from the event buffer, waiting if necessary. | |
2465 | The value is a Lisp object representing the event. | |
2466 | The value is nil for an event that should be ignored, | |
2467 | or that was handled here. | |
2468 | We always read and discard one event. */ | |
284f4730 JB |
2469 | |
2470 | static Lisp_Object | |
83d68044 | 2471 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2472 | KBOARD **kbp; |
83d68044 | 2473 | int *used_mouse_menu; |
284f4730 JB |
2474 | { |
2475 | register int c; | |
2476 | Lisp_Object obj; | |
2477 | ||
2478 | if (noninteractive) | |
2479 | { | |
2480 | c = getchar (); | |
18cd2eeb | 2481 | XSETINT (obj, c); |
f5b56972 | 2482 | *kbp = current_kboard; |
284f4730 JB |
2483 | return obj; |
2484 | } | |
2485 | ||
2486 | /* Wait until there is input available. */ | |
2487 | for (;;) | |
2488 | { | |
beecf6a1 KH |
2489 | if (kbd_fetch_ptr != kbd_store_ptr) |
2490 | break; | |
2491 | #ifdef HAVE_MOUSE | |
f3253854 | 2492 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2493 | break; |
beecf6a1 | 2494 | #endif |
284f4730 JB |
2495 | |
2496 | /* If the quit flag is set, then read_char will return | |
2497 | quit_char, so that counts as "available input." */ | |
2498 | if (!NILP (Vquit_flag)) | |
2499 | quit_throw_to_read_char (); | |
2500 | ||
2501 | /* One way or another, wait until input is available; then, if | |
2502 | interrupt handlers have not read it, read it now. */ | |
2503 | ||
2504 | #ifdef OLDVMS | |
2505 | wait_for_kbd_input (); | |
2506 | #else | |
2507 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
2508 | #ifdef SIGIO | |
2509 | gobble_input (0); | |
2510 | #endif /* SIGIO */ | |
beecf6a1 KH |
2511 | if (kbd_fetch_ptr != kbd_store_ptr) |
2512 | break; | |
2513 | #ifdef HAVE_MOUSE | |
f3253854 | 2514 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2515 | break; |
2516 | #endif | |
2517 | { | |
2518 | Lisp_Object minus_one; | |
f76475ad | 2519 | |
beecf6a1 KH |
2520 | XSETINT (minus_one, -1); |
2521 | wait_reading_process_input (0, 0, minus_one, 1); | |
284f4730 | 2522 | |
beecf6a1 KH |
2523 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
2524 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
2525 | read_avail_input (1); | |
2526 | } | |
284f4730 JB |
2527 | #endif /* not VMS */ |
2528 | } | |
2529 | ||
2530 | /* At this point, we know that there is a readable event available | |
2531 | somewhere. If the event queue is empty, then there must be a | |
2532 | mouse movement enabled and available. */ | |
beecf6a1 | 2533 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 2534 | { |
cd21b839 | 2535 | struct input_event *event; |
3e51c7b7 | 2536 | |
beecf6a1 KH |
2537 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2538 | ? kbd_fetch_ptr | |
2539 | : kbd_buffer); | |
3e51c7b7 | 2540 | |
cd21b839 | 2541 | last_event_timestamp = event->timestamp; |
cd21b839 | 2542 | |
c5fdd383 KH |
2543 | #ifdef MULTI_KBOARD |
2544 | *kbp = event_to_kboard (event); | |
2545 | if (*kbp == 0) | |
2546 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 2547 | #else |
c5fdd383 | 2548 | *kbp = &the_only_kboard; |
5798cf15 | 2549 | #endif |
beecf6a1 | 2550 | |
4bb994d1 JB |
2551 | obj = Qnil; |
2552 | ||
48e416d4 | 2553 | /* These two kinds of events get special handling |
a612e298 RS |
2554 | and don't actually appear to the command loop. |
2555 | We return nil for them. */ | |
48e416d4 RS |
2556 | if (event->kind == selection_request_event) |
2557 | { | |
598a9fa7 | 2558 | #ifdef HAVE_X11 |
1e8bd3da RS |
2559 | struct input_event copy; |
2560 | ||
4581e928 RS |
2561 | /* Remove it from the buffer before processing it, |
2562 | since otherwise swallow_events will see it | |
2563 | and process it again. */ | |
1e8bd3da | 2564 | copy = *event; |
beecf6a1 | 2565 | kbd_fetch_ptr = event + 1; |
4581e928 | 2566 | x_handle_selection_request (©); |
598a9fa7 JB |
2567 | #else |
2568 | /* We're getting selection request events, but we don't have | |
2569 | a window system. */ | |
2570 | abort (); | |
2571 | #endif | |
48e416d4 RS |
2572 | } |
2573 | ||
1e12dd87 | 2574 | else if (event->kind == selection_clear_event) |
48e416d4 | 2575 | { |
598a9fa7 | 2576 | #ifdef HAVE_X11 |
beecf6a1 | 2577 | kbd_fetch_ptr = event + 1; |
f3253854 | 2578 | x_handle_selection_clear (event); |
598a9fa7 JB |
2579 | #else |
2580 | /* We're getting selection request events, but we don't have | |
2581 | a window system. */ | |
2582 | abort (); | |
2583 | #endif | |
48e416d4 | 2584 | } |
990acea3 RS |
2585 | #ifdef HAVE_X11 |
2586 | else if (event->kind == delete_window_event) | |
2587 | { | |
bbdc2092 RS |
2588 | /* Make an event (delete-frame (FRAME)). */ |
2589 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 2590 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 2591 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2592 | } |
2593 | else if (event->kind == iconify_event) | |
2594 | { | |
2595 | /* Make an event (iconify-frame (FRAME)). */ | |
2596 | obj = Fcons (event->frame_or_window, Qnil); | |
2597 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 2598 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
2599 | } |
2600 | else if (event->kind == deiconify_event) | |
2601 | { | |
2602 | /* Make an event (make-frame-visible (FRAME)). */ | |
2603 | obj = Fcons (event->frame_or_window, Qnil); | |
2604 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 2605 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
2606 | } |
2607 | #endif | |
a8015ab5 KH |
2608 | else if (event->kind == buffer_switch_event) |
2609 | { | |
2610 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 2611 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 2612 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 2613 | } |
099787c1 RS |
2614 | #ifdef USE_X_TOOLKIT |
2615 | else if (event->kind == menu_bar_activate_event) | |
2616 | { | |
2617 | kbd_fetch_ptr = event + 1; | |
2618 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
2619 | } | |
2620 | #endif | |
a612e298 | 2621 | /* Just discard these, by returning nil. |
c5fdd383 | 2622 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
2623 | when we need to randomly delete events from the queue. |
2624 | (They shouldn't otherwise be found in the buffer, | |
2625 | but on some machines it appears they do show up | |
c5fdd383 | 2626 | even without MULTI_KBOARD.) */ |
a612e298 | 2627 | else if (event->kind == no_event) |
beecf6a1 | 2628 | kbd_fetch_ptr = event + 1; |
48e416d4 | 2629 | |
4bb994d1 JB |
2630 | /* If this event is on a different frame, return a switch-frame this |
2631 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
2632 | else |
2633 | { | |
a6d53864 | 2634 | #ifdef MULTI_FRAME |
9b8eb840 | 2635 | Lisp_Object frame; |
1e12dd87 | 2636 | Lisp_Object focus; |
7b4aedb9 | 2637 | |
9b8eb840 | 2638 | frame = event->frame_or_window; |
2470a66f KH |
2639 | if (CONSP (frame)) |
2640 | frame = XCONS (frame)->car; | |
2641 | else if (WINDOWP (frame)) | |
1e12dd87 | 2642 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 2643 | |
1e12dd87 RS |
2644 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
2645 | if (! NILP (focus)) | |
2646 | frame = focus; | |
07d2b8de | 2647 | |
4c52b668 | 2648 | if (! EQ (frame, internal_last_event_frame) |
1e12dd87 RS |
2649 | && XFRAME (frame) != selected_frame) |
2650 | obj = make_lispy_switch_frame (frame); | |
4c52b668 | 2651 | internal_last_event_frame = frame; |
a6d53864 | 2652 | #endif /* MULTI_FRAME */ |
4bb994d1 | 2653 | |
1e12dd87 RS |
2654 | /* If we didn't decide to make a switch-frame event, go ahead |
2655 | and build a real event from the queue entry. */ | |
cd21b839 | 2656 | |
1e12dd87 RS |
2657 | if (NILP (obj)) |
2658 | { | |
2659 | obj = make_lispy_event (event); | |
83d68044 KH |
2660 | #ifdef USE_X_TOOLKIT |
2661 | /* If this was a menu selection, then set the flag to inhibit | |
2662 | writing to last_nonmenu_event. Don't do this if the event | |
2663 | we're returning is (menu-bar), though; that indicates the | |
2664 | beginning of the menu sequence, and we might as well leave | |
2665 | that as the `event with parameters' for this selection. */ | |
2666 | if (event->kind == menu_bar_event | |
2667 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) | |
2668 | && used_mouse_menu) | |
2669 | *used_mouse_menu = 1; | |
2670 | #endif | |
1e12dd87 RS |
2671 | |
2672 | /* Wipe out this event, to catch bugs. */ | |
2673 | event->kind = no_event; | |
beecf6a1 | 2674 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 2675 | |
beecf6a1 | 2676 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 2677 | } |
4bb994d1 | 2678 | } |
284f4730 | 2679 | } |
2eb6bfbe | 2680 | #ifdef HAVE_MOUSE |
a612e298 | 2681 | /* Try generating a mouse motion event. */ |
f3253854 | 2682 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2683 | { |
f3253854 | 2684 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 2685 | Lisp_Object bar_window; |
3c370943 | 2686 | enum scroll_bar_part part; |
e5d77022 JB |
2687 | Lisp_Object x, y; |
2688 | unsigned long time; | |
284f4730 | 2689 | |
c5fdd383 | 2690 | *kbp = current_kboard; |
e177ac3a RS |
2691 | /* Note that this uses F to determine which display to look at. |
2692 | If there is no valid info, it does not store anything | |
2693 | so x remains nil. */ | |
2694 | x = Qnil; | |
dd26ab75 | 2695 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
2696 | |
2697 | obj = Qnil; | |
284f4730 | 2698 | |
07d2b8de | 2699 | #ifdef MULTI_FRAME |
4bb994d1 JB |
2700 | /* Decide if we should generate a switch-frame event. Don't |
2701 | generate switch-frame events for motion outside of all Emacs | |
2702 | frames. */ | |
e177ac3a | 2703 | if (!NILP (x) && f) |
cd21b839 | 2704 | { |
9b8eb840 | 2705 | Lisp_Object frame; |
4bb994d1 | 2706 | |
9b8eb840 | 2707 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 2708 | if (NILP (frame)) |
18cd2eeb | 2709 | XSETFRAME (frame, f); |
4bb994d1 | 2710 | |
4c52b668 | 2711 | if (! EQ (frame, internal_last_event_frame) |
80645119 | 2712 | && XFRAME (frame) != selected_frame) |
764cb3f9 | 2713 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 2714 | internal_last_event_frame = frame; |
cd21b839 | 2715 | } |
68553292 | 2716 | #endif |
4bb994d1 | 2717 | |
df0f2ba1 | 2718 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 2719 | return a mouse-motion event. */ |
e177ac3a | 2720 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 2721 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 2722 | } |
2eb6bfbe | 2723 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
2724 | else |
2725 | /* We were promised by the above while loop that there was | |
2726 | something for us to read! */ | |
2727 | abort (); | |
2728 | ||
2729 | input_pending = readable_events (); | |
2730 | ||
3c370943 | 2731 | #ifdef MULTI_FRAME |
4c52b668 | 2732 | Vlast_event_frame = internal_last_event_frame; |
3c370943 JB |
2733 | #endif |
2734 | ||
284f4730 JB |
2735 | return (obj); |
2736 | } | |
a612e298 RS |
2737 | \f |
2738 | /* Process any events that are not user-visible, | |
2739 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
2740 | |
2741 | void | |
2742 | swallow_events () | |
2743 | { | |
beecf6a1 | 2744 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
2745 | { |
2746 | struct input_event *event; | |
2747 | ||
beecf6a1 KH |
2748 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2749 | ? kbd_fetch_ptr | |
2750 | : kbd_buffer); | |
3a3b9632 RS |
2751 | |
2752 | last_event_timestamp = event->timestamp; | |
2753 | ||
2754 | /* These two kinds of events get special handling | |
2755 | and don't actually appear to the command loop. */ | |
2756 | if (event->kind == selection_request_event) | |
2757 | { | |
2758 | #ifdef HAVE_X11 | |
4581e928 RS |
2759 | struct input_event copy; |
2760 | copy = *event; | |
beecf6a1 | 2761 | kbd_fetch_ptr = event + 1; |
4581e928 | 2762 | x_handle_selection_request (©); |
3a3b9632 RS |
2763 | #else |
2764 | /* We're getting selection request events, but we don't have | |
2765 | a window system. */ | |
2766 | abort (); | |
2767 | #endif | |
2768 | } | |
2769 | ||
2770 | else if (event->kind == selection_clear_event) | |
2771 | { | |
2772 | #ifdef HAVE_X11 | |
2773 | x_handle_selection_clear (event); | |
beecf6a1 | 2774 | kbd_fetch_ptr = event + 1; |
3a3b9632 RS |
2775 | #else |
2776 | /* We're getting selection request events, but we don't have | |
2777 | a window system. */ | |
2778 | abort (); | |
2779 | #endif | |
2780 | } | |
2781 | else | |
2782 | break; | |
2783 | } | |
2784 | ||
2785 | get_input_pending (&input_pending); | |
2786 | } | |
a612e298 | 2787 | \f |
284f4730 | 2788 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 2789 | static Lisp_Object accent_key_syms; |
284f4730 JB |
2790 | static Lisp_Object func_key_syms; |
2791 | static Lisp_Object mouse_syms; | |
2792 | ||
e9bf89a0 RS |
2793 | /* This is a list of keysym codes for special "accent" characters. |
2794 | It parallels lispy_accent_keys. */ | |
2795 | ||
2796 | static int lispy_accent_codes[] = | |
2797 | { | |
79a7046c | 2798 | #ifdef XK_dead_circumflex |
e9bf89a0 | 2799 | XK_dead_circumflex, |
79a7046c RS |
2800 | #else |
2801 | 0, | |
2802 | #endif | |
2803 | #ifdef XK_dead_grave | |
e9bf89a0 | 2804 | XK_dead_grave, |
79a7046c RS |
2805 | #else |
2806 | 0, | |
2807 | #endif | |
2808 | #ifdef XK_dead_tilde | |
e9bf89a0 | 2809 | XK_dead_tilde, |
79a7046c RS |
2810 | #else |
2811 | 0, | |
2812 | #endif | |
2813 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 2814 | XK_dead_diaeresis, |
79a7046c RS |
2815 | #else |
2816 | 0, | |
2817 | #endif | |
2818 | #ifdef XK_dead_macron | |
e9bf89a0 | 2819 | XK_dead_macron, |
79a7046c RS |
2820 | #else |
2821 | 0, | |
2822 | #endif | |
2823 | #ifdef XK_dead_degree | |
e9bf89a0 | 2824 | XK_dead_degree, |
79a7046c RS |
2825 | #else |
2826 | 0, | |
2827 | #endif | |
2828 | #ifdef XK_dead_acute | |
e9bf89a0 | 2829 | XK_dead_acute, |
79a7046c RS |
2830 | #else |
2831 | 0, | |
2832 | #endif | |
2833 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 2834 | XK_dead_cedilla, |
79a7046c RS |
2835 | #else |
2836 | 0, | |
2837 | #endif | |
2838 | #ifdef XK_dead_breve | |
e9bf89a0 | 2839 | XK_dead_breve, |
79a7046c RS |
2840 | #else |
2841 | 0, | |
2842 | #endif | |
2843 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 2844 | XK_dead_ogonek, |
79a7046c RS |
2845 | #else |
2846 | 0, | |
2847 | #endif | |
2848 | #ifdef XK_dead_caron | |
e9bf89a0 | 2849 | XK_dead_caron, |
79a7046c RS |
2850 | #else |
2851 | 0, | |
2852 | #endif | |
2853 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 2854 | XK_dead_doubleacute, |
79a7046c RS |
2855 | #else |
2856 | 0, | |
2857 | #endif | |
2858 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 2859 | XK_dead_abovedot, |
79a7046c RS |
2860 | #else |
2861 | 0, | |
2862 | #endif | |
e9bf89a0 RS |
2863 | }; |
2864 | ||
2865 | /* This is a list of Lisp names for special "accent" characters. | |
2866 | It parallels lispy_accent_codes. */ | |
2867 | ||
2868 | static char *lispy_accent_keys[] = | |
2869 | { | |
2870 | "dead-circumflex", | |
2871 | "dead-grave", | |
2872 | "dead-tilde", | |
2873 | "dead-diaeresis", | |
2874 | "dead-macron", | |
2875 | "dead-degree", | |
2876 | "dead-acute", | |
2877 | "dead-cedilla", | |
2878 | "dead-breve", | |
2879 | "dead-ogonek", | |
2880 | "dead-caron", | |
2881 | "dead-doubleacute", | |
2882 | "dead-abovedot", | |
2883 | }; | |
2884 | ||
284f4730 JB |
2885 | /* You'll notice that this table is arranged to be conveniently |
2886 | indexed by X Windows keysym values. */ | |
2887 | static char *lispy_function_keys[] = | |
2888 | { | |
2889 | /* X Keysym value */ | |
2890 | ||
80e4aa30 | 2891 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00 */ |
86e5706b RS |
2892 | "backspace", |
2893 | "tab", | |
2894 | "linefeed", | |
2895 | "clear", | |
2896 | 0, | |
2897 | "return", | |
2898 | 0, 0, | |
2899 | 0, 0, 0, /* 0xff10 */ | |
2900 | "pause", | |
2901 | 0, 0, 0, 0, 0, 0, 0, | |
2902 | "escape", | |
2903 | 0, 0, 0, 0, | |
2904 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff20...2f */ | |
2905 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff30...3f */ | |
2906 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ | |
2907 | ||
284f4730 JB |
2908 | "home", /* 0xff50 */ /* IsCursorKey */ |
2909 | "left", | |
2910 | "up", | |
2911 | "right", | |
2912 | "down", | |
2913 | "prior", | |
2914 | "next", | |
2915 | "end", | |
2916 | "begin", | |
2917 | 0, /* 0xff59 */ | |
2918 | 0, 0, 0, 0, 0, 0, | |
2919 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ | |
2920 | "print", | |
2921 | "execute", | |
2922 | "insert", | |
2923 | 0, /* 0xff64 */ | |
2924 | "undo", | |
2925 | "redo", | |
2926 | "menu", | |
2927 | "find", | |
2928 | "cancel", | |
2929 | "help", | |
2930 | "break", /* 0xff6b */ | |
2931 | ||
9fdbfdf8 | 2932 | 0, 0, 0, 0, 0, 0, 0, 0, "backtab", 0, |
284f4730 | 2933 | 0, /* 0xff76 */ |
36ae397e | 2934 | 0, 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff7f */ |
284f4730 JB |
2935 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
2936 | 0, 0, 0, 0, 0, 0, 0, 0, | |
2937 | "kp-tab", /* 0xff89 */ | |
2938 | 0, 0, 0, | |
2939 | "kp-enter", /* 0xff8d */ | |
2940 | 0, 0, 0, | |
2941 | "kp-f1", /* 0xff91 */ | |
2942 | "kp-f2", | |
2943 | "kp-f3", | |
2944 | "kp-f4", | |
872157e7 RS |
2945 | "kp-home", /* 0xff95 */ |
2946 | "kp-left", | |
2947 | "kp-up", | |
2948 | "kp-right", | |
2949 | "kp-down", | |
2950 | "kp-prior", /* kp-page-up */ | |
2951 | "kp-next", /* kp-page-down */ | |
2952 | "kp-end", | |
2953 | "kp-begin", | |
2954 | "kp-insert", | |
2955 | "kp-delete", | |
2956 | 0, /* 0xffa0 */ | |
2957 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
2958 | "kp-multiply", /* 0xffaa */ |
2959 | "kp-add", | |
2960 | "kp-separator", | |
2961 | "kp-subtract", | |
2962 | "kp-decimal", | |
2963 | "kp-divide", /* 0xffaf */ | |
2964 | "kp-0", /* 0xffb0 */ | |
2965 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
2966 | 0, /* 0xffba */ | |
2967 | 0, 0, | |
2968 | "kp-equal", /* 0xffbd */ | |
2969 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
2970 | "f2", |
2971 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
2972 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
2973 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
2974 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
2975 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
2976 | 0, 0, 0, 0, 0, 0, 0, 0, | |
2977 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
2978 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
284f4730 JB |
2979 | }; |
2980 | ||
df0f2ba1 | 2981 | static char *lispy_mouse_names[] = |
284f4730 JB |
2982 | { |
2983 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
2984 | }; | |
2985 | ||
3c370943 | 2986 | /* Scroll bar parts. */ |
4bb994d1 JB |
2987 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
2988 | ||
3c370943 JB |
2989 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
2990 | Lisp_Object *scroll_bar_parts[] = { | |
4bb994d1 JB |
2991 | &Qabove_handle, &Qhandle, &Qbelow_handle |
2992 | }; | |
2993 | ||
2994 | ||
7b4aedb9 | 2995 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 2996 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
2997 | |
2998 | The elements have the form | |
2999 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
3000 | where REST is the cdr of a position as it would be reported in the event. | |
3001 | ||
3002 | The make_lispy_event function stores positions here to tell the | |
3003 | difference between click and drag events, and to store the starting | |
3004 | location to be included in drag events. */ | |
3005 | ||
3006 | static Lisp_Object button_down_location; | |
88cb0656 | 3007 | |
fbcd35bd JB |
3008 | /* Information about the most recent up-going button event: Which |
3009 | button, what location, and what time. */ | |
3010 | ||
559f9d04 RS |
3011 | static int last_mouse_button; |
3012 | static int last_mouse_x; | |
3013 | static int last_mouse_y; | |
3014 | static unsigned long button_down_time; | |
fbcd35bd | 3015 | |
564dc952 JB |
3016 | /* The maximum time between clicks to make a double-click, |
3017 | or Qnil to disable double-click detection, | |
3018 | or Qt for no time limit. */ | |
3019 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
3020 | |
3021 | /* The number of clicks in this multiple-click. */ | |
3022 | ||
3023 | int double_click_count; | |
3024 | ||
284f4730 JB |
3025 | /* Given a struct input_event, build the lisp event which represents |
3026 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
3027 | movement buffer, which should have a movement event in it. |
3028 | ||
3029 | Note that events must be passed to this function in the order they | |
3030 | are received; this function stores the location of button presses | |
3031 | in order to build drag events when the button is released. */ | |
284f4730 JB |
3032 | |
3033 | static Lisp_Object | |
3034 | make_lispy_event (event) | |
3035 | struct input_event *event; | |
3036 | { | |
79a7046c RS |
3037 | int i; |
3038 | ||
0220c518 | 3039 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 3040 | { |
284f4730 JB |
3041 | /* A simple keystroke. */ |
3042 | case ascii_keystroke: | |
86e5706b | 3043 | { |
9343ab07 | 3044 | Lisp_Object lispy_c; |
e9bf89a0 | 3045 | int c = event->code & 0377; |
5a1c6df8 JB |
3046 | /* Turn ASCII characters into control characters |
3047 | when proper. */ | |
3048 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
3049 | c = make_ctrl_char (c); |
3050 | ||
3051 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
3052 | just above, and the shift key was taken care of by the X code, | |
3053 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
3054 | c |= (event->modifiers |
3055 | & (meta_modifier | alt_modifier | |
3056 | | hyper_modifier | super_modifier)); | |
559f9d04 | 3057 | button_down_time = 0; |
bb9e9bed | 3058 | XSETFASTINT (lispy_c, c); |
9343ab07 | 3059 | return lispy_c; |
86e5706b | 3060 | } |
284f4730 JB |
3061 | |
3062 | /* A function key. The symbol may need to have modifier prefixes | |
3063 | tacked onto it. */ | |
3064 | case non_ascii_keystroke: | |
559f9d04 | 3065 | button_down_time = 0; |
e9bf89a0 RS |
3066 | |
3067 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
3068 | if (event->code == lispy_accent_codes[i]) | |
3069 | return modify_event_symbol (i, | |
3070 | event->modifiers, | |
80e4aa30 | 3071 | Qfunction_key, Qnil, |
e9bf89a0 RS |
3072 | lispy_accent_keys, &accent_key_syms, |
3073 | (sizeof (lispy_accent_keys) | |
3074 | / sizeof (lispy_accent_keys[0]))); | |
3075 | ||
270a208f | 3076 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
3077 | if (event->code & (1 << 28)) |
3078 | { | |
3079 | /* We need to use an alist rather than a vector as the cache | |
3080 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
3081 | if (NILP (current_kboard->system_key_syms)) |
3082 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 3083 | return modify_event_symbol (event->code, |
80e4aa30 | 3084 | event->modifiers, |
7c97ffdc KH |
3085 | Qfunction_key, |
3086 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
3087 | 0, ¤t_kboard->system_key_syms, |
3088 | (unsigned)-1); | |
80e4aa30 RS |
3089 | } |
3090 | ||
e9bf89a0 RS |
3091 | return modify_event_symbol (event->code - 0xff00, |
3092 | event->modifiers, | |
80e4aa30 | 3093 | Qfunction_key, Qnil, |
284f4730 JB |
3094 | lispy_function_keys, &func_key_syms, |
3095 | (sizeof (lispy_function_keys) | |
3096 | / sizeof (lispy_function_keys[0]))); | |
3097 | break; | |
3098 | ||
514354e9 | 3099 | #ifdef HAVE_MOUSE |
df0f2ba1 | 3100 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 3101 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 3102 | case mouse_click: |
3c370943 | 3103 | case scroll_bar_click: |
284f4730 | 3104 | { |
e9bf89a0 | 3105 | int button = event->code; |
559f9d04 | 3106 | int is_double; |
7b4aedb9 | 3107 | Lisp_Object position; |
dbc4e1c1 JB |
3108 | Lisp_Object *start_pos_ptr; |
3109 | Lisp_Object start_pos; | |
284f4730 | 3110 | |
7b4aedb9 | 3111 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
3112 | abort (); |
3113 | ||
7b4aedb9 JB |
3114 | /* Build the position as appropriate for this mouse click. */ |
3115 | if (event->kind == mouse_click) | |
284f4730 | 3116 | { |
7b4aedb9 | 3117 | int part; |
598a9fa7 | 3118 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 3119 | Lisp_Object window; |
7b4aedb9 | 3120 | Lisp_Object posn; |
9e20143a RS |
3121 | int row, column; |
3122 | ||
5da3133a RS |
3123 | /* Ignore mouse events that were made on frame that |
3124 | have been deleted. */ | |
3125 | if (! FRAME_LIVE_P (f)) | |
3126 | return Qnil; | |
3127 | ||
9e20143a | 3128 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), |
6c6a9be8 | 3129 | &column, &row, NULL, 1); |
7b4aedb9 | 3130 | |
eef045bf RS |
3131 | #ifndef USE_X_TOOLKIT |
3132 | /* In the non-toolkit version, clicks on the menu bar | |
3133 | are ordinary button events in the event buffer. | |
3134 | Distinguish them, and invoke the menu. | |
3135 | ||
3136 | (In the toolkit version, the toolkit handles the menu bar | |
3137 | and Emacs doesn't know about it until after the user | |
3138 | makes a selection.) */ | |
3139 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f)) | |
bb936752 | 3140 | { |
b7c49376 | 3141 | Lisp_Object items, item; |
0a0e8fe6 RS |
3142 | int hpos; |
3143 | int i; | |
3144 | ||
3145 | /* Activate the menu bar on the down event. If the | |
3146 | up event comes in before the menu code can deal with it, | |
3147 | just ignore it. */ | |
3148 | if (! (event->modifiers & down_modifier)) | |
3149 | return Qnil; | |
0aafc975 | 3150 | |
f2ae6b3f | 3151 | item = Qnil; |
5ec75a55 | 3152 | items = FRAME_MENU_BAR_ITEMS (f); |
b7c49376 | 3153 | for (i = 0; i < XVECTOR (items)->size; i += 3) |
5ec75a55 RS |
3154 | { |
3155 | Lisp_Object pos, string; | |
b7c49376 RS |
3156 | string = XVECTOR (items)->contents[i + 1]; |
3157 | pos = XVECTOR (items)->contents[i + 2]; | |
3158 | if (NILP (string)) | |
3159 | break; | |
9e20143a RS |
3160 | if (column >= XINT (pos) |
3161 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
3162 | { |
3163 | item = XVECTOR (items)->contents[i]; | |
3164 | break; | |
3165 | } | |
5ec75a55 | 3166 | } |
9e20143a | 3167 | |
5ec75a55 RS |
3168 | position |
3169 | = Fcons (event->frame_or_window, | |
3170 | Fcons (Qmenu_bar, | |
3171 | Fcons (Fcons (event->x, event->y), | |
3172 | Fcons (make_number (event->timestamp), | |
3173 | Qnil)))); | |
3174 | ||
b7c49376 | 3175 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 3176 | } |
eef045bf | 3177 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 3178 | |
9e20143a | 3179 | window = window_from_coordinates (f, column, row, &part); |
0aafc975 | 3180 | |
8c18cbfb | 3181 | if (!WINDOWP (window)) |
78ced549 RS |
3182 | { |
3183 | window = event->frame_or_window; | |
3184 | posn = Qnil; | |
3185 | } | |
284f4730 | 3186 | else |
7b4aedb9 | 3187 | { |
9e20143a RS |
3188 | int pixcolumn, pixrow; |
3189 | column -= XINT (XWINDOW (window)->left); | |
3190 | row -= XINT (XWINDOW (window)->top); | |
3191 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
3192 | XSETINT (event->x, pixcolumn); | |
3193 | XSETINT (event->y, pixrow); | |
dbc4e1c1 | 3194 | |
7b4aedb9 JB |
3195 | if (part == 1) |
3196 | posn = Qmode_line; | |
3197 | else if (part == 2) | |
3198 | posn = Qvertical_line; | |
3199 | else | |
18cd2eeb KH |
3200 | XSETINT (posn, |
3201 | buffer_posn_from_coords (XWINDOW (window), | |
3202 | column, row)); | |
7b4aedb9 JB |
3203 | } |
3204 | ||
5ec75a55 RS |
3205 | position |
3206 | = Fcons (window, | |
3207 | Fcons (posn, | |
3208 | Fcons (Fcons (event->x, event->y), | |
3209 | Fcons (make_number (event->timestamp), | |
3210 | Qnil)))); | |
284f4730 | 3211 | } |
7b4aedb9 | 3212 | else |
88cb0656 | 3213 | { |
9e20143a RS |
3214 | Lisp_Object window; |
3215 | Lisp_Object portion_whole; | |
3216 | Lisp_Object part; | |
3217 | ||
3218 | window = event->frame_or_window; | |
3219 | portion_whole = Fcons (event->x, event->y); | |
3220 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 JB |
3221 | |
3222 | position = | |
3223 | Fcons (window, | |
3c370943 | 3224 | Fcons (Qvertical_scroll_bar, |
7b4aedb9 JB |
3225 | Fcons (portion_whole, |
3226 | Fcons (make_number (event->timestamp), | |
9e20143a | 3227 | Fcons (part, Qnil))))); |
88cb0656 JB |
3228 | } |
3229 | ||
dbc4e1c1 JB |
3230 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
3231 | ||
3232 | start_pos = *start_pos_ptr; | |
3233 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 3234 | |
559f9d04 RS |
3235 | is_double = (button == last_mouse_button |
3236 | && XINT (event->x) == last_mouse_x | |
3237 | && XINT (event->y) == last_mouse_y | |
3238 | && button_down_time != 0 | |
3239 | && (EQ (Vdouble_click_time, Qt) | |
3240 | || (INTEGERP (Vdouble_click_time) | |
3241 | && ((int)(event->timestamp - button_down_time) | |
3242 | < XINT (Vdouble_click_time))))); | |
3243 | last_mouse_button = button; | |
3244 | last_mouse_x = XINT (event->x); | |
3245 | last_mouse_y = XINT (event->y); | |
3246 | ||
7b4aedb9 JB |
3247 | /* If this is a button press, squirrel away the location, so |
3248 | we can decide later whether it was a click or a drag. */ | |
3249 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
3250 | { |
3251 | if (is_double) | |
3252 | { | |
3253 | double_click_count++; | |
3254 | event->modifiers |= ((double_click_count > 2) | |
3255 | ? triple_modifier | |
3256 | : double_modifier); | |
3257 | } | |
3258 | else | |
3259 | double_click_count = 1; | |
3260 | button_down_time = event->timestamp; | |
3261 | *start_pos_ptr = Fcopy_alist (position); | |
3262 | } | |
7b4aedb9 | 3263 | |
88cb0656 | 3264 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 3265 | see if this was a click or a drag. */ |
88cb0656 JB |
3266 | else if (event->modifiers & up_modifier) |
3267 | { | |
48e416d4 RS |
3268 | /* If we did not see a down before this up, |
3269 | ignore the up. Probably this happened because | |
3270 | the down event chose a menu item. | |
3271 | It would be an annoyance to treat the release | |
3272 | of the button that chose the menu item | |
3273 | as a separate event. */ | |
3274 | ||
8c18cbfb | 3275 | if (!CONSP (start_pos)) |
48e416d4 RS |
3276 | return Qnil; |
3277 | ||
88cb0656 | 3278 | event->modifiers &= ~up_modifier; |
48e416d4 | 3279 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 3280 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
3281 | event->modifiers |= click_modifier; |
3282 | else | |
48e416d4 | 3283 | #endif |
dbc4e1c1 JB |
3284 | { |
3285 | /* The third element of every position should be the (x,y) | |
3286 | pair. */ | |
9b8eb840 | 3287 | Lisp_Object down; |
dbc4e1c1 | 3288 | |
9b8eb840 | 3289 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
3290 | if (EQ (event->x, XCONS (down)->car) |
3291 | && EQ (event->y, XCONS (down)->cdr)) | |
3292 | { | |
bc536d84 | 3293 | event->modifiers |= click_modifier; |
fbcd35bd JB |
3294 | } |
3295 | else | |
3296 | { | |
559f9d04 | 3297 | button_down_time = 0; |
fbcd35bd JB |
3298 | event->modifiers |= drag_modifier; |
3299 | } | |
bc536d84 RS |
3300 | /* Don't check is_double; treat this as multiple |
3301 | if the down-event was multiple. */ | |
3302 | if (double_click_count > 1) | |
3303 | event->modifiers |= ((double_click_count > 2) | |
3304 | ? triple_modifier | |
3305 | : double_modifier); | |
dbc4e1c1 | 3306 | } |
88cb0656 JB |
3307 | } |
3308 | else | |
3309 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 3310 | the up_modifier set. */ |
88cb0656 JB |
3311 | abort (); |
3312 | ||
88cb0656 | 3313 | { |
7b4aedb9 | 3314 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
3315 | Lisp_Object head; |
3316 | ||
3317 | head = modify_event_symbol (button, | |
3318 | event->modifiers, | |
3319 | Qmouse_click, Qnil, | |
3320 | lispy_mouse_names, &mouse_syms, | |
3321 | (sizeof (lispy_mouse_names) | |
3322 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 3323 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
3324 | return Fcons (head, |
3325 | Fcons (start_pos, | |
3326 | Fcons (position, | |
3327 | Qnil))); | |
fbcd35bd JB |
3328 | else if (event->modifiers & (double_modifier | triple_modifier)) |
3329 | return Fcons (head, | |
3330 | Fcons (position, | |
3331 | Fcons (make_number (double_click_count), | |
3332 | Qnil))); | |
88cb0656 JB |
3333 | else |
3334 | return Fcons (head, | |
7b4aedb9 | 3335 | Fcons (position, |
88cb0656 JB |
3336 | Qnil)); |
3337 | } | |
284f4730 | 3338 | } |
514354e9 | 3339 | #endif /* HAVE_MOUSE */ |
284f4730 | 3340 | |
2470a66f KH |
3341 | #ifdef USE_X_TOOLKIT |
3342 | case menu_bar_event: | |
3343 | /* The event value is in the cdr of the frame_or_window slot. */ | |
3344 | if (!CONSP (event->frame_or_window)) | |
3345 | abort (); | |
3346 | return XCONS (event->frame_or_window)->cdr; | |
3347 | #endif | |
3348 | ||
284f4730 JB |
3349 | /* The 'kind' field of the event is something we don't recognize. */ |
3350 | default: | |
48e416d4 | 3351 | abort (); |
284f4730 JB |
3352 | } |
3353 | } | |
3354 | ||
514354e9 | 3355 | #ifdef HAVE_MOUSE |
6cbff1cb | 3356 | |
284f4730 | 3357 | static Lisp_Object |
7b4aedb9 | 3358 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 3359 | FRAME_PTR frame; |
7b4aedb9 | 3360 | Lisp_Object bar_window; |
3c370943 | 3361 | enum scroll_bar_part part; |
284f4730 | 3362 | Lisp_Object x, y; |
e5d77022 | 3363 | unsigned long time; |
284f4730 | 3364 | { |
68553292 | 3365 | #ifdef MULTI_FRAME |
3c370943 | 3366 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 3367 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 3368 | { |
9b8eb840 | 3369 | Lisp_Object part_sym; |
4bb994d1 | 3370 | |
9b8eb840 | 3371 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 3372 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 3373 | (Fcons (Fcons (bar_window, |
3c370943 | 3374 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
3375 | Fcons (Fcons (x, y), |
3376 | Fcons (make_number (time), | |
cb5df6ae | 3377 | Fcons (part_sym, |
4bb994d1 JB |
3378 | Qnil))))), |
3379 | Qnil))); | |
3380 | } | |
3381 | ||
3382 | /* Or is it an ordinary mouse movement? */ | |
284f4730 | 3383 | else |
68553292 | 3384 | #endif /* MULTI_FRAME */ |
284f4730 | 3385 | { |
4bb994d1 | 3386 | int area; |
9e20143a | 3387 | Lisp_Object window; |
4bb994d1 | 3388 | Lisp_Object posn; |
9e20143a RS |
3389 | int column, row; |
3390 | ||
68553292 | 3391 | #ifdef MULTI_FRAME |
9e20143a | 3392 | if (frame) |
68553292 RS |
3393 | #else |
3394 | if (1) | |
3395 | #endif | |
047688cb RS |
3396 | { |
3397 | /* It's in a frame; which window on that frame? */ | |
6c6a9be8 KH |
3398 | pixel_to_glyph_coords (frame, XINT (x), XINT (y), &column, &row, |
3399 | NULL, 1); | |
047688cb RS |
3400 | window = window_from_coordinates (frame, column, row, &area); |
3401 | } | |
9e20143a RS |
3402 | else |
3403 | window = Qnil; | |
4bb994d1 | 3404 | |
8c18cbfb | 3405 | if (WINDOWP (window)) |
4bb994d1 | 3406 | { |
9e20143a RS |
3407 | int pixcolumn, pixrow; |
3408 | column -= XINT (XWINDOW (window)->left); | |
3409 | row -= XINT (XWINDOW (window)->top); | |
3410 | glyph_to_pixel_coords (frame, column, row, &pixcolumn, &pixrow); | |
3411 | XSETINT (x, pixcolumn); | |
3412 | XSETINT (y, pixrow); | |
4bb994d1 JB |
3413 | |
3414 | if (area == 1) | |
3415 | posn = Qmode_line; | |
3416 | else if (area == 2) | |
3417 | posn = Qvertical_line; | |
3418 | else | |
18cd2eeb KH |
3419 | XSETINT (posn, |
3420 | buffer_posn_from_coords (XWINDOW (window), column, row)); | |
4bb994d1 | 3421 | } |
68553292 | 3422 | #ifdef MULTI_FRAME |
e9bf89a0 RS |
3423 | else if (frame != 0) |
3424 | { | |
18cd2eeb | 3425 | XSETFRAME (window, frame); |
e9bf89a0 RS |
3426 | posn = Qnil; |
3427 | } | |
68553292 | 3428 | #endif |
284f4730 | 3429 | else |
4bb994d1 JB |
3430 | { |
3431 | window = Qnil; | |
3432 | posn = Qnil; | |
bb9e9bed KH |
3433 | XSETFASTINT (x, 0); |
3434 | XSETFASTINT (y, 0); | |
4bb994d1 | 3435 | } |
284f4730 | 3436 | |
4bb994d1 JB |
3437 | return Fcons (Qmouse_movement, |
3438 | Fcons (Fcons (window, | |
3439 | Fcons (posn, | |
3440 | Fcons (Fcons (x, y), | |
3441 | Fcons (make_number (time), | |
3442 | Qnil)))), | |
3443 | Qnil)); | |
3444 | } | |
284f4730 JB |
3445 | } |
3446 | ||
514354e9 | 3447 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 3448 | |
cd21b839 JB |
3449 | /* Construct a switch frame event. */ |
3450 | static Lisp_Object | |
3451 | make_lispy_switch_frame (frame) | |
3452 | Lisp_Object frame; | |
3453 | { | |
3454 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
3455 | } | |
0a7f1fc0 JB |
3456 | \f |
3457 | /* Manipulating modifiers. */ | |
284f4730 | 3458 | |
0a7f1fc0 | 3459 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 3460 | |
0a7f1fc0 JB |
3461 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
3462 | SYMBOL's name of the end of the modifiers; the string from this | |
3463 | position is the unmodified symbol name. | |
284f4730 | 3464 | |
0a7f1fc0 | 3465 | This doesn't use any caches. */ |
6da3dd3a | 3466 | |
0a7f1fc0 JB |
3467 | static int |
3468 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 3469 | Lisp_Object symbol; |
0a7f1fc0 | 3470 | int *modifier_end; |
284f4730 JB |
3471 | { |
3472 | struct Lisp_String *name; | |
3473 | int i; | |
3474 | int modifiers; | |
284f4730 JB |
3475 | |
3476 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 3477 | |
284f4730 JB |
3478 | modifiers = 0; |
3479 | name = XSYMBOL (symbol)->name; | |
3480 | ||
0a7f1fc0 | 3481 | for (i = 0; i+2 <= name->size; ) |
6da3dd3a RS |
3482 | { |
3483 | int this_mod_end = 0; | |
3484 | int this_mod = 0; | |
284f4730 | 3485 | |
6da3dd3a RS |
3486 | /* See if the name continues with a modifier word. |
3487 | Check that the word appears, but don't check what follows it. | |
3488 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 3489 | |
6da3dd3a RS |
3490 | switch (name->data[i]) |
3491 | { | |
3492 | #define SINGLE_LETTER_MOD(BIT) \ | |
3493 | (this_mod_end = i + 1, this_mod = BIT) | |
3494 | ||
6da3dd3a RS |
3495 | case 'A': |
3496 | SINGLE_LETTER_MOD (alt_modifier); | |
3497 | break; | |
284f4730 | 3498 | |
6da3dd3a RS |
3499 | case 'C': |
3500 | SINGLE_LETTER_MOD (ctrl_modifier); | |
3501 | break; | |
284f4730 | 3502 | |
6da3dd3a RS |
3503 | case 'H': |
3504 | SINGLE_LETTER_MOD (hyper_modifier); | |
3505 | break; | |
3506 | ||
6da3dd3a RS |
3507 | case 'M': |
3508 | SINGLE_LETTER_MOD (meta_modifier); | |
3509 | break; | |
3510 | ||
6da3dd3a RS |
3511 | case 'S': |
3512 | SINGLE_LETTER_MOD (shift_modifier); | |
3513 | break; | |
3514 | ||
3515 | case 's': | |
6da3dd3a RS |
3516 | SINGLE_LETTER_MOD (super_modifier); |
3517 | break; | |
3518 | ||
0a7f1fc0 | 3519 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
3520 | } |
3521 | ||
3522 | /* If we found no modifier, stop looking for them. */ | |
3523 | if (this_mod_end == 0) | |
3524 | break; | |
3525 | ||
3526 | /* Check there is a dash after the modifier, so that it | |
3527 | really is a modifier. */ | |
3528 | if (this_mod_end >= name->size || name->data[this_mod_end] != '-') | |
3529 | break; | |
3530 | ||
3531 | /* This modifier is real; look for another. */ | |
3532 | modifiers |= this_mod; | |
3533 | i = this_mod_end + 1; | |
3534 | } | |
284f4730 | 3535 | |
0a7f1fc0 | 3536 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
3537 | if (! (modifiers & (down_modifier | drag_modifier |
3538 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 3539 | && i + 7 == name->size |
4bb994d1 | 3540 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 3541 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
3542 | modifiers |= click_modifier; |
3543 | ||
3544 | if (modifier_end) | |
3545 | *modifier_end = i; | |
3546 | ||
3547 | return modifiers; | |
3548 | } | |
3549 | ||
0a7f1fc0 JB |
3550 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
3551 | prepended to the string BASE[0..BASE_LEN-1]. | |
3552 | This doesn't use any caches. */ | |
3553 | static Lisp_Object | |
3554 | apply_modifiers_uncached (modifiers, base, base_len) | |
3555 | int modifiers; | |
3556 | char *base; | |
3557 | int base_len; | |
3558 | { | |
3559 | /* Since BASE could contain nulls, we can't use intern here; we have | |
3560 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
3561 | reference to it. */ | |
3562 | char *new_mods = | |
fbcd35bd | 3563 | (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); |
0a7f1fc0 | 3564 | int mod_len; |
284f4730 | 3565 | |
284f4730 | 3566 | { |
0a7f1fc0 JB |
3567 | char *p = new_mods; |
3568 | ||
3569 | /* Only the event queue may use the `up' modifier; it should always | |
3570 | be turned into a click or drag event before presented to lisp code. */ | |
3571 | if (modifiers & up_modifier) | |
3572 | abort (); | |
3573 | ||
3574 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
3575 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
3576 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
3577 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
3578 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 3579 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
3580 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
3581 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
3582 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
3583 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
3584 | /* The click modifier is denoted by the absence of other modifiers. */ |
3585 | ||
3586 | *p = '\0'; | |
3587 | ||
3588 | mod_len = p - new_mods; | |
3589 | } | |
284f4730 | 3590 | |
0a7f1fc0 | 3591 | { |
9b8eb840 | 3592 | Lisp_Object new_name; |
df0f2ba1 | 3593 | |
9b8eb840 | 3594 | new_name = make_uninit_string (mod_len + base_len); |
0a7f1fc0 JB |
3595 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
3596 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len); | |
284f4730 JB |
3597 | |
3598 | return Fintern (new_name, Qnil); | |
3599 | } | |
3600 | } | |
3601 | ||
3602 | ||
0a7f1fc0 JB |
3603 | static char *modifier_names[] = |
3604 | { | |
fbcd35bd | 3605 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
1dfdf9e2 | 3606 | 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 3607 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 3608 | }; |
80645119 | 3609 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
3610 | |
3611 | static Lisp_Object modifier_symbols; | |
3612 | ||
3613 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
3614 | static Lisp_Object | |
3615 | lispy_modifier_list (modifiers) | |
3616 | int modifiers; | |
3617 | { | |
3618 | Lisp_Object modifier_list; | |
3619 | int i; | |
3620 | ||
3621 | modifier_list = Qnil; | |
80645119 | 3622 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 3623 | if (modifiers & (1<<i)) |
80645119 JB |
3624 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
3625 | modifier_list); | |
0a7f1fc0 JB |
3626 | |
3627 | return modifier_list; | |
3628 | } | |
3629 | ||
3630 | ||
3631 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
3632 | where UNMODIFIED is the unmodified form of SYMBOL, | |
3633 | MASK is the set of modifiers present in SYMBOL's name. | |
3634 | This is similar to parse_modifiers_uncached, but uses the cache in | |
3635 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
3636 | Qevent_symbol_elements property. */ | |
3d31316f | 3637 | |
0a7f1fc0 JB |
3638 | static Lisp_Object |
3639 | parse_modifiers (symbol) | |
3640 | Lisp_Object symbol; | |
3641 | { | |
9b8eb840 | 3642 | Lisp_Object elements; |
0a7f1fc0 | 3643 | |
9b8eb840 | 3644 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
3645 | if (CONSP (elements)) |
3646 | return elements; | |
3647 | else | |
3648 | { | |
3649 | int end; | |
ec0faad2 | 3650 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 3651 | Lisp_Object unmodified; |
0a7f1fc0 JB |
3652 | Lisp_Object mask; |
3653 | ||
9b8eb840 KH |
3654 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
3655 | XSYMBOL (symbol)->name->size - end), | |
3656 | Qnil); | |
3657 | ||
ec0faad2 | 3658 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 3659 | abort (); |
bb9e9bed | 3660 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
3661 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
3662 | ||
3663 | /* Cache the parsing results on SYMBOL. */ | |
3664 | Fput (symbol, Qevent_symbol_element_mask, | |
3665 | elements); | |
3666 | Fput (symbol, Qevent_symbol_elements, | |
3667 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
3668 | ||
3669 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
3670 | it would be nice to put that in unmodified's cache. | |
3671 | But we can't, since we're not sure that parse_modifiers is | |
3672 | canonical. */ | |
3673 | ||
3674 | return elements; | |
3675 | } | |
3676 | } | |
3677 | ||
3678 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
3679 | BASE must be unmodified. | |
3680 | ||
3681 | This is like apply_modifiers_uncached, but uses BASE's | |
3682 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
3683 | Qevent_symbol_elements properties, since it has that info anyway. |
3684 | ||
3685 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
3686 | the modified symbol. */ | |
0a7f1fc0 JB |
3687 | static Lisp_Object |
3688 | apply_modifiers (modifiers, base) | |
3689 | int modifiers; | |
3690 | Lisp_Object base; | |
3691 | { | |
7b4aedb9 | 3692 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 3693 | |
80645119 | 3694 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 3695 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 3696 | |
0a7f1fc0 | 3697 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 3698 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 3699 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 3700 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
3701 | |
3702 | if (CONSP (entry)) | |
7b4aedb9 JB |
3703 | new_symbol = XCONS (entry)->cdr; |
3704 | else | |
3705 | { | |
df0f2ba1 | 3706 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
3707 | new_symbol = apply_modifiers_uncached (modifiers, |
3708 | XSYMBOL (base)->name->data, | |
3709 | XSYMBOL (base)->name->size); | |
3710 | ||
3711 | /* Add the new symbol to the base's cache. */ | |
3712 | entry = Fcons (index, new_symbol); | |
3713 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
3714 | ||
3715 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 3716 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
3717 | Fput (new_symbol, Qevent_symbol_element_mask, |
3718 | Fcons (base, Fcons (index, Qnil))); | |
3719 | Fput (new_symbol, Qevent_symbol_elements, | |
3720 | Fcons (base, lispy_modifier_list (modifiers))); | |
3721 | } | |
0a7f1fc0 | 3722 | |
df0f2ba1 | 3723 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
3724 | |
3725 | You'd think we could just set this once and for all when we | |
3726 | intern the symbol above, but reorder_modifiers may call us when | |
3727 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
3728 | because it has a Qmodifier_cache property it must have its |
3729 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
3730 | if (NILP (Fget (new_symbol, Qevent_kind))) |
3731 | { | |
9b8eb840 | 3732 | Lisp_Object kind; |
7b4aedb9 | 3733 | |
9b8eb840 | 3734 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
3735 | if (! NILP (kind)) |
3736 | Fput (new_symbol, Qevent_kind, kind); | |
3737 | } | |
3738 | ||
3739 | return new_symbol; | |
0a7f1fc0 JB |
3740 | } |
3741 | ||
3742 | ||
3743 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
3744 | return a symbol with the modifiers placed in the canonical order. | |
3745 | Canonical order is alphabetical, except for down and drag, which | |
3746 | always come last. The 'click' modifier is never written out. | |
3747 | ||
3748 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
3749 | and M-C-foo end up being equivalent in the keymap. */ | |
3750 | ||
3751 | Lisp_Object | |
3752 | reorder_modifiers (symbol) | |
3753 | Lisp_Object symbol; | |
3754 | { | |
3755 | /* It's hopefully okay to write the code this way, since everything | |
3756 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 3757 | Lisp_Object parsed; |
0a7f1fc0 | 3758 | |
9b8eb840 | 3759 | parsed = parse_modifiers (symbol); |
54593ed9 | 3760 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
3761 | XCONS (parsed)->car); |
3762 | } | |
3763 | ||
3764 | ||
284f4730 JB |
3765 | /* For handling events, we often want to produce a symbol whose name |
3766 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
3767 | to some base, like the name of a function key or mouse button. | |
3768 | modify_event_symbol produces symbols of this sort. | |
3769 | ||
3770 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
3771 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
3772 | in the table. | |
3773 | ||
80e4aa30 RS |
3774 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
3775 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
3776 | ||
284f4730 JB |
3777 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
3778 | persist between calls to modify_event_symbol that it can use to | |
3779 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 3780 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
3781 | |
3782 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 3783 | |
284f4730 JB |
3784 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
3785 | whose prefixes should be applied to the symbol name. | |
3786 | ||
3787 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 3788 | the returned symbol. |
88cb0656 JB |
3789 | |
3790 | The symbols we create are supposed to have an | |
eb8c3be9 | 3791 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
3792 | in the symbol's name. */ |
3793 | ||
284f4730 | 3794 | static Lisp_Object |
80e4aa30 RS |
3795 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
3796 | name_table, symbol_table, table_size) | |
284f4730 JB |
3797 | int symbol_num; |
3798 | unsigned modifiers; | |
3799 | Lisp_Object symbol_kind; | |
80e4aa30 | 3800 | Lisp_Object name_alist; |
284f4730 JB |
3801 | char **name_table; |
3802 | Lisp_Object *symbol_table; | |
2c834fb3 | 3803 | unsigned int table_size; |
284f4730 | 3804 | { |
80e4aa30 RS |
3805 | Lisp_Object value; |
3806 | Lisp_Object symbol_int; | |
3807 | ||
2c834fb3 KH |
3808 | /* Get rid of the "vendor-specific" bit here. */ |
3809 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
3810 | |
3811 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 3812 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 3813 | return Qnil; |
284f4730 | 3814 | |
80e4aa30 RS |
3815 | if (CONSP (*symbol_table)) |
3816 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
3817 | ||
0a7f1fc0 | 3818 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 3819 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
3820 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
3821 | we've never used that symbol before. */ | |
80e4aa30 | 3822 | else |
88cb0656 | 3823 | { |
80e4aa30 RS |
3824 | if (! VECTORP (*symbol_table) |
3825 | || XVECTOR (*symbol_table)->size != table_size) | |
3826 | { | |
3827 | Lisp_Object size; | |
0a7f1fc0 | 3828 | |
bb9e9bed | 3829 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
3830 | *symbol_table = Fmake_vector (size, Qnil); |
3831 | } | |
284f4730 | 3832 | |
80e4aa30 RS |
3833 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
3834 | } | |
284f4730 | 3835 | |
0a7f1fc0 | 3836 | /* Have we already used this symbol before? */ |
80e4aa30 | 3837 | if (NILP (value)) |
284f4730 | 3838 | { |
0a7f1fc0 | 3839 | /* No; let's create it. */ |
80e4aa30 | 3840 | if (!NILP (name_alist)) |
b64b4075 | 3841 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
80e4aa30 RS |
3842 | else if (name_table[symbol_num]) |
3843 | value = intern (name_table[symbol_num]); | |
b64b4075 | 3844 | |
2c834fb3 KH |
3845 | #ifdef HAVE_X_WINDOWS |
3846 | if (NILP (value)) | |
3847 | { | |
3848 | char *name = x_get_keysym_name (symbol_num); | |
3849 | if (name) | |
3850 | value = intern (name); | |
3851 | } | |
3852 | #endif | |
3853 | ||
b64b4075 | 3854 | if (NILP (value)) |
d1f50460 RS |
3855 | { |
3856 | char buf[20]; | |
3857 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 3858 | value = intern (buf); |
d1f50460 | 3859 | } |
0a7f1fc0 | 3860 | |
80e4aa30 RS |
3861 | if (CONSP (*symbol_table)) |
3862 | *symbol_table = Fcons (value, *symbol_table); | |
3863 | else | |
3864 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
3865 | ||
df0f2ba1 | 3866 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
3867 | builds the Qevent_symbol_elements property, which the user |
3868 | cares about. */ | |
80e4aa30 RS |
3869 | apply_modifiers (modifiers & click_modifier, value); |
3870 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 3871 | } |
88cb0656 | 3872 | |
0a7f1fc0 | 3873 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 3874 | return apply_modifiers (modifiers, value); |
284f4730 | 3875 | } |
6da3dd3a RS |
3876 | \f |
3877 | /* Convert a list that represents an event type, | |
3878 | such as (ctrl meta backspace), into the usual representation of that | |
3879 | event type as a number or a symbol. */ | |
3880 | ||
a1706c30 KH |
3881 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
3882 | "Convert the event description LIST to an event type.\n\ | |
3883 | LIST should contain one base event type (a character or symbol)\n\ | |
3884 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ | |
3885 | drag, down, double or triple).\n\ | |
3886 | The return value is an event type (a character or symbol) which\n\ | |
3887 | has the same base event type and all the specified modifiers.") | |
3888 | (event) | |
6da3dd3a RS |
3889 | Lisp_Object event; |
3890 | { | |
3891 | Lisp_Object base; | |
3892 | int modifiers = 0; | |
3893 | Lisp_Object rest; | |
3894 | ||
3895 | base = Qnil; | |
3896 | rest = event; | |
3897 | while (CONSP (rest)) | |
3898 | { | |
3899 | Lisp_Object elt; | |
3900 | int this = 0; | |
3901 | ||
3902 | elt = XCONS (rest)->car; | |
3903 | ||
3d31316f | 3904 | /* Given a symbol, see if it is a modifier name. */ |
6da3dd3a | 3905 | if (SYMBOLP (elt)) |
3d31316f | 3906 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
3907 | |
3908 | if (this != 0) | |
3909 | modifiers |= this; | |
3910 | else if (!NILP (base)) | |
3911 | error ("Two bases given in one event"); | |
3912 | else | |
3913 | base = elt; | |
3914 | ||
3915 | rest = XCONS (rest)->cdr; | |
3916 | } | |
3917 | ||
3d31316f RS |
3918 | /* Let the symbol A refer to the character A. */ |
3919 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
3920 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
3921 | ||
6da3dd3a RS |
3922 | if (INTEGERP (base)) |
3923 | { | |
3d31316f RS |
3924 | /* Turn (shift a) into A. */ |
3925 | if ((modifiers & shift_modifier) != 0 | |
3926 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
3927 | { | |
3928 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
3929 | modifiers &= ~shift_modifier; | |
3930 | } | |
3931 | ||
3932 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 3933 | if (modifiers & ctrl_modifier) |
3d31316f | 3934 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
3935 | | make_ctrl_char (XINT (base))); |
3936 | else | |
3937 | return make_number (modifiers | XINT (base)); | |
3938 | } | |
3939 | else if (SYMBOLP (base)) | |
3940 | return apply_modifiers (modifiers, base); | |
3941 | else | |
3942 | error ("Invalid base event"); | |
3943 | } | |
3944 | ||
3d31316f RS |
3945 | /* Try to recognize SYMBOL as a modifier name. |
3946 | Return the modifier flag bit, or 0 if not recognized. */ | |
3947 | ||
3948 | static int | |
3949 | parse_solitary_modifier (symbol) | |
3950 | Lisp_Object symbol; | |
3951 | { | |
3952 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
3953 | ||
3954 | switch (name->data[0]) | |
3955 | { | |
3956 | #define SINGLE_LETTER_MOD(BIT) \ | |
3957 | if (name->size == 1) \ | |
3958 | return BIT; | |
3959 | ||
3960 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
3961 | if (LEN == name->size \ | |
3962 | && ! strncmp (name->data, NAME, LEN)) \ | |
3963 | return BIT; | |
3964 | ||
3965 | case 'A': | |
3966 | SINGLE_LETTER_MOD (alt_modifier); | |
3967 | break; | |
3968 | ||
3969 | case 'a': | |
3970 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
3971 | break; | |
3972 | ||
3973 | case 'C': | |
3974 | SINGLE_LETTER_MOD (ctrl_modifier); | |
3975 | break; | |
3976 | ||
3977 | case 'c': | |
3978 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
3979 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
3980 | break; | |
3981 | ||
3982 | case 'H': | |
3983 | SINGLE_LETTER_MOD (hyper_modifier); | |
3984 | break; | |
3985 | ||
3986 | case 'h': | |
3987 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
3988 | break; | |
3989 | ||
3990 | case 'M': | |
3991 | SINGLE_LETTER_MOD (meta_modifier); | |
3992 | break; | |
3993 | ||
3994 | case 'm': | |
3995 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
3996 | break; | |
3997 | ||
3998 | case 'S': | |
3999 | SINGLE_LETTER_MOD (shift_modifier); | |
4000 | break; | |
4001 | ||
4002 | case 's': | |
4003 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
4004 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
4005 | SINGLE_LETTER_MOD (super_modifier); | |
4006 | break; | |
4007 | ||
4008 | case 'd': | |
4009 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
4010 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
4011 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
4012 | break; | |
4013 | ||
4014 | case 't': | |
4015 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
4016 | break; | |
4017 | ||
4018 | #undef SINGLE_LETTER_MOD | |
4019 | #undef MULTI_LETTER_MOD | |
4020 | } | |
4021 | ||
4022 | return 0; | |
4023 | } | |
4024 | ||
6da3dd3a RS |
4025 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
4026 | Such a list is not valid as an event, | |
4027 | but it can be a Lucid-style event type list. */ | |
4028 | ||
4029 | int | |
4030 | lucid_event_type_list_p (object) | |
4031 | Lisp_Object object; | |
4032 | { | |
4033 | Lisp_Object tail; | |
4034 | ||
4035 | if (! CONSP (object)) | |
4036 | return 0; | |
4037 | ||
4038 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
4039 | { | |
4040 | Lisp_Object elt; | |
4041 | elt = XCONS (tail)->car; | |
4042 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
4043 | return 0; | |
4044 | } | |
4045 | ||
4046 | return NILP (tail); | |
4047 | } | |
284f4730 | 4048 | \f |
284f4730 JB |
4049 | /* Store into *addr a value nonzero if terminal input chars are available. |
4050 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
4051 | but works even if FIONREAD does not exist. | |
4052 | (In fact, this may actually read some input.) */ | |
4053 | ||
4054 | static void | |
4055 | get_input_pending (addr) | |
4056 | int *addr; | |
4057 | { | |
4058 | /* First of all, have we already counted some input? */ | |
4059 | *addr = !NILP (Vquit_flag) || readable_events (); | |
4060 | ||
4061 | /* If input is being read as it arrives, and we have none, there is none. */ | |
4062 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
4063 | return; | |
4064 | ||
4065 | /* Try to read some input and see how much we get. */ | |
4066 | gobble_input (0); | |
4067 | *addr = !NILP (Vquit_flag) || readable_events (); | |
4068 | } | |
4069 | ||
81931ba1 | 4070 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 JB |
4071 | |
4072 | int | |
4073 | gobble_input (expected) | |
4074 | int expected; | |
4075 | { | |
4076 | #ifndef VMS | |
4077 | #ifdef SIGIO | |
4078 | if (interrupt_input) | |
4079 | { | |
32676c08 | 4080 | SIGMASKTYPE mask; |
e065a56e | 4081 | mask = sigblockx (SIGIO); |
284f4730 | 4082 | read_avail_input (expected); |
e065a56e | 4083 | sigsetmask (mask); |
284f4730 JB |
4084 | } |
4085 | else | |
81931ba1 RS |
4086 | #ifdef POLL_FOR_INPUT |
4087 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
4088 | { | |
4089 | SIGMASKTYPE mask; | |
4090 | mask = sigblockx (SIGALRM); | |
4091 | read_avail_input (expected); | |
4092 | sigsetmask (mask); | |
4093 | } | |
4094 | else | |
87485d6f | 4095 | #endif |
284f4730 JB |
4096 | #endif |
4097 | read_avail_input (expected); | |
4098 | #endif | |
4099 | } | |
a8015ab5 | 4100 | |
241ceaf7 RS |
4101 | /* Put a buffer_switch_event in the buffer |
4102 | so that read_key_sequence will notice the new current buffer. */ | |
4103 | ||
a8015ab5 KH |
4104 | record_asynch_buffer_change () |
4105 | { | |
4106 | struct input_event event; | |
a30f0615 RS |
4107 | Lisp_Object tem; |
4108 | ||
a8015ab5 KH |
4109 | event.kind = buffer_switch_event; |
4110 | event.frame_or_window = Qnil; | |
241ceaf7 | 4111 | |
f65e6f7d | 4112 | #ifdef subprocesses |
a30f0615 RS |
4113 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
4114 | The purpose of the event is to make read_key_sequence look up the | |
4115 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
4116 | and the event could cause trouble by messing up (input-pending-p). */ | |
4117 | tem = Fwaiting_for_user_input_p (); | |
4118 | if (NILP (tem)) | |
4119 | return; | |
f65e6f7d RS |
4120 | #else |
4121 | /* We never need these events if we have no asynchronous subprocesses. */ | |
4122 | return; | |
4123 | #endif | |
a30f0615 | 4124 | |
241ceaf7 RS |
4125 | /* Make sure no interrupt happens while storing the event. */ |
4126 | #ifdef SIGIO | |
4127 | if (interrupt_input) | |
4128 | { | |
4129 | SIGMASKTYPE mask; | |
4130 | mask = sigblockx (SIGIO); | |
4131 | kbd_buffer_store_event (&event); | |
4132 | sigsetmask (mask); | |
4133 | } | |
4134 | else | |
4135 | #endif | |
4136 | { | |
4137 | stop_polling (); | |
4138 | kbd_buffer_store_event (&event); | |
4139 | start_polling (); | |
4140 | } | |
a8015ab5 | 4141 | } |
284f4730 JB |
4142 | \f |
4143 | #ifndef VMS | |
4144 | ||
4145 | /* Read any terminal input already buffered up by the system | |
4146 | into the kbd_buffer, but do not wait. | |
4147 | ||
4148 | EXPECTED should be nonzero if the caller knows there is some input. | |
4149 | ||
4150 | Except on VMS, all input is read by this function. | |
4151 | If interrupt_input is nonzero, this function MUST be called | |
4152 | only when SIGIO is blocked. | |
4153 | ||
4154 | Returns the number of keyboard chars read, or -1 meaning | |
4155 | this is a bad time to try to read input. */ | |
4156 | ||
4157 | static int | |
4158 | read_avail_input (expected) | |
4159 | int expected; | |
4160 | { | |
4161 | struct input_event buf[KBD_BUFFER_SIZE]; | |
4162 | register int i; | |
4163 | int nread; | |
4164 | ||
4165 | if (read_socket_hook) | |
4166 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
437f6112 RS |
4167 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, |
4168 | expected, expected); | |
284f4730 JB |
4169 | else |
4170 | { | |
17270835 RS |
4171 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
4172 | the kbd_buffer can really hold. That may prevent loss | |
4173 | of characters on some systems when input is stuffed at us. */ | |
4174 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 4175 | int n_to_read; |
284f4730 | 4176 | |
58788063 | 4177 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
4178 | #ifdef WINDOWSNT |
4179 | return 0; | |
4180 | #else /* not WINDOWSNT */ | |
80e4aa30 | 4181 | #ifdef MSDOS |
58788063 RS |
4182 | n_to_read = dos_keysns (); |
4183 | if (n_to_read == 0) | |
4184 | return 0; | |
c3a2738c | 4185 | #else /* not MSDOS */ |
284f4730 JB |
4186 | #ifdef FIONREAD |
4187 | /* Find out how much input is available. */ | |
437f6112 | 4188 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
4189 | /* Formerly simply reported no input, but that sometimes led to |
4190 | a failure of Emacs to terminate. | |
4191 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
4192 | /* ??? Is it really right to send the signal just to this process |
4193 | rather than to the whole process group? | |
4194 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 4195 | kill (getpid (), SIGHUP); |
58788063 | 4196 | if (n_to_read == 0) |
284f4730 | 4197 | return 0; |
58788063 RS |
4198 | if (n_to_read > sizeof cbuf) |
4199 | n_to_read = sizeof cbuf; | |
284f4730 | 4200 | #else /* no FIONREAD */ |
482952ef | 4201 | #if defined(USG) || defined(DGUX) |
284f4730 | 4202 | /* Read some input if available, but don't wait. */ |
58788063 | 4203 | n_to_read = sizeof cbuf; |
437f6112 | 4204 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
4205 | #else |
4206 | you lose; | |
4207 | #endif | |
4208 | #endif | |
80e4aa30 | 4209 | #endif /* not MSDOS */ |
bc536d84 | 4210 | #endif /* not WINDOWSNT */ |
284f4730 | 4211 | |
58788063 RS |
4212 | /* Now read; for one reason or another, this will not block. |
4213 | NREAD is set to the number of chars read. */ | |
9134775b | 4214 | do |
284f4730 | 4215 | { |
80e4aa30 RS |
4216 | #ifdef MSDOS |
4217 | cbuf[0] = dos_keyread(); | |
4218 | nread = 1; | |
4219 | #else | |
437f6112 | 4220 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 4221 | #endif |
762f2b92 | 4222 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
4223 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
4224 | This looks incorrect, but it isn't, because _BSD causes | |
4225 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
4226 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 4227 | if (nread == 0) |
80e4aa30 | 4228 | kill (0, SIGHUP); |
284f4730 | 4229 | #endif |
9134775b | 4230 | } |
791587ee KH |
4231 | while ( |
4232 | /* We used to retry the read if it was interrupted. | |
4233 | But this does the wrong thing when O_NDELAY causes | |
4234 | an EAGAIN error. Does anybody know of a situation | |
4235 | where a retry is actually needed? */ | |
4236 | #if 0 | |
4237 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 4238 | #ifdef EFAULT |
9134775b | 4239 | || errno == EFAULT |
80e4aa30 | 4240 | #endif |
284f4730 | 4241 | #ifdef EBADSLT |
9134775b | 4242 | || errno == EBADSLT |
284f4730 | 4243 | #endif |
791587ee KH |
4244 | ) |
4245 | #else | |
4246 | 0 | |
4247 | #endif | |
4248 | ); | |
284f4730 JB |
4249 | |
4250 | #ifndef FIONREAD | |
02c2c53f | 4251 | #if defined (USG) || defined (DGUX) |
437f6112 | 4252 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 4253 | #endif /* USG or DGUX */ |
284f4730 JB |
4254 | #endif /* no FIONREAD */ |
4255 | for (i = 0; i < nread; i++) | |
4256 | { | |
4257 | buf[i].kind = ascii_keystroke; | |
86e5706b | 4258 | buf[i].modifiers = 0; |
b04904fb | 4259 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 4260 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
4261 | if (meta_key != 2) |
4262 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
4263 | |
4264 | buf[i].code = cbuf[i]; | |
7b4aedb9 | 4265 | #ifdef MULTI_FRAME |
18cd2eeb | 4266 | XSETFRAME (buf[i].frame_or_window, selected_frame); |
7b4aedb9 JB |
4267 | #else |
4268 | buf[i].frame_or_window = Qnil; | |
4269 | #endif | |
284f4730 JB |
4270 | } |
4271 | } | |
4272 | ||
4273 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
4274 | for (i = 0; i < nread; i++) | |
4275 | { | |
4276 | kbd_buffer_store_event (&buf[i]); | |
4277 | /* Don't look at input that follows a C-g too closely. | |
4278 | This reduces lossage due to autorepeat on C-g. */ | |
4279 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 4280 | && buf[i].code == quit_char) |
284f4730 JB |
4281 | break; |
4282 | } | |
4283 | ||
4284 | return nread; | |
4285 | } | |
4286 | #endif /* not VMS */ | |
4287 | \f | |
4288 | #ifdef SIGIO /* for entire page */ | |
4289 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4290 | ||
2ce30ea2 | 4291 | SIGTYPE |
284f4730 JB |
4292 | input_available_signal (signo) |
4293 | int signo; | |
4294 | { | |
4295 | /* Must preserve main program's value of errno. */ | |
4296 | int old_errno = errno; | |
4297 | #ifdef BSD4_1 | |
4298 | extern int select_alarmed; | |
4299 | #endif | |
4300 | ||
4301 | #ifdef USG | |
4302 | /* USG systems forget handlers when they are used; | |
4303 | must reestablish each time */ | |
4304 | signal (signo, input_available_signal); | |
4305 | #endif /* USG */ | |
4306 | ||
4307 | #ifdef BSD4_1 | |
4308 | sigisheld (SIGIO); | |
4309 | #endif | |
4310 | ||
ffd56f97 JB |
4311 | if (input_available_clear_time) |
4312 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
4313 | |
4314 | while (1) | |
4315 | { | |
4316 | int nread; | |
4317 | nread = read_avail_input (1); | |
4318 | /* -1 means it's not ok to read the input now. | |
4319 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
4320 | 0 means there was no keyboard input available. */ | |
4321 | if (nread <= 0) | |
4322 | break; | |
4323 | ||
4324 | #ifdef BSD4_1 | |
4325 | select_alarmed = 1; /* Force the select emulator back to life */ | |
4326 | #endif | |
4327 | } | |
4328 | ||
4329 | #ifdef BSD4_1 | |
4330 | sigfree (); | |
4331 | #endif | |
4332 | errno = old_errno; | |
4333 | } | |
4334 | #endif /* SIGIO */ | |
ad163903 JB |
4335 | |
4336 | /* Send ourselves a SIGIO. | |
4337 | ||
4338 | This function exists so that the UNBLOCK_INPUT macro in | |
4339 | blockinput.h can have some way to take care of input we put off | |
4340 | dealing with, without assuming that every file which uses | |
4341 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
4342 | void | |
4343 | reinvoke_input_signal () | |
4344 | { | |
df0f2ba1 | 4345 | #ifdef SIGIO |
ad163903 JB |
4346 | kill (0, SIGIO); |
4347 | #endif | |
4348 | } | |
4349 | ||
4350 | ||
284f4730 JB |
4351 | \f |
4352 | /* Return the prompt-string of a sparse keymap. | |
4353 | This is the first element which is a string. | |
4354 | Return nil if there is none. */ | |
4355 | ||
4356 | Lisp_Object | |
4357 | map_prompt (map) | |
4358 | Lisp_Object map; | |
4359 | { | |
4360 | while (CONSP (map)) | |
4361 | { | |
4362 | register Lisp_Object tem; | |
4363 | tem = Fcar (map); | |
8c18cbfb | 4364 | if (STRINGP (tem)) |
284f4730 JB |
4365 | return tem; |
4366 | map = Fcdr (map); | |
4367 | } | |
4368 | return Qnil; | |
4369 | } | |
4370 | ||
b7c49376 RS |
4371 | static void menu_bar_item (); |
4372 | static void menu_bar_one_keymap (); | |
4373 | ||
4374 | /* These variables hold the vector under construction within | |
4375 | menu_bar_items and its subroutines, and the current index | |
4376 | for storing into that vector. */ | |
4377 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 4378 | static int menu_bar_items_index; |
5ec75a55 | 4379 | |
b7c49376 RS |
4380 | /* Return a vector of menu items for a menu bar, appropriate |
4381 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 4382 | KEY STRING MAPLIST. |
b7c49376 RS |
4383 | |
4384 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
4385 | |
4386 | Lisp_Object | |
b7c49376 RS |
4387 | menu_bar_items (old) |
4388 | Lisp_Object old; | |
5ec75a55 RS |
4389 | { |
4390 | /* The number of keymaps we're scanning right now, and the number of | |
4391 | keymaps we have allocated space for. */ | |
4392 | int nmaps; | |
4393 | ||
4394 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
4395 | in the current keymaps, or nil where it is not a prefix. */ | |
4396 | Lisp_Object *maps; | |
4397 | ||
9f9c0e27 | 4398 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
4399 | |
4400 | Lisp_Object result; | |
4401 | ||
4402 | int mapno; | |
47d319aa | 4403 | Lisp_Object oquit; |
5ec75a55 | 4404 | |
b7c49376 RS |
4405 | int i; |
4406 | ||
4407 | struct gcpro gcpro1; | |
4408 | ||
db60d856 JB |
4409 | /* In order to build the menus, we need to call the keymap |
4410 | accessors. They all call QUIT. But this function is called | |
4411 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
4412 | quitting while building the menus. |
4413 | We do this instead of specbind because (1) errors will clear it anyway | |
4414 | and (2) this avoids risk of specpdl overflow. */ | |
4415 | oquit = Vinhibit_quit; | |
df0f2ba1 | 4416 | Vinhibit_quit = Qt; |
db60d856 | 4417 | |
b7c49376 RS |
4418 | if (!NILP (old)) |
4419 | menu_bar_items_vector = old; | |
4420 | else | |
4421 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
4422 | menu_bar_items_index = 0; | |
4423 | ||
4424 | GCPRO1 (menu_bar_items_vector); | |
4425 | ||
5ec75a55 RS |
4426 | /* Build our list of keymaps. |
4427 | If we recognize a function key and replace its escape sequence in | |
4428 | keybuf with its symbol, or if the sequence starts with a mouse | |
4429 | click and we need to switch buffers, we jump back here to rebuild | |
4430 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 4431 | { |
5ec75a55 RS |
4432 | Lisp_Object *tmaps; |
4433 | ||
217258d5 | 4434 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 4435 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 4436 | { |
217258d5 KH |
4437 | /* Yes, use them (if non-nil) as well as the global map. */ |
4438 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
4439 | nmaps = 0; | |
4440 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
4441 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
4442 | if (!NILP (Voverriding_local_map)) | |
4443 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
4444 | } |
4445 | else | |
4446 | { | |
d0a49716 | 4447 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
4448 | nmaps = current_minor_maps (NULL, &tmaps); |
4449 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
4450 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 4451 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 4452 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 4453 | #else |
217258d5 | 4454 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 4455 | #endif |
9dd3131c | 4456 | } |
217258d5 | 4457 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
4458 | } |
4459 | ||
4460 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
4461 | ||
4462 | result = Qnil; | |
4463 | ||
e58aa385 | 4464 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
4465 | { |
4466 | if (! NILP (maps[mapno])) | |
e74fbc70 | 4467 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0)); |
5ec75a55 RS |
4468 | else |
4469 | def = Qnil; | |
4470 | ||
4471 | tem = Fkeymapp (def); | |
4472 | if (!NILP (tem)) | |
b7c49376 | 4473 | menu_bar_one_keymap (def); |
5ec75a55 RS |
4474 | } |
4475 | ||
b7c49376 RS |
4476 | /* Move to the end those items that should be at the end. */ |
4477 | ||
9f9c0e27 RS |
4478 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
4479 | { | |
b7c49376 RS |
4480 | int i; |
4481 | int end = menu_bar_items_index; | |
4482 | ||
4483 | for (i = 0; i < end; i += 3) | |
4484 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4485 | { | |
0301268e RS |
4486 | Lisp_Object tem0, tem1, tem2; |
4487 | /* Move the item at index I to the end, | |
4488 | shifting all the others forward. */ | |
4489 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
4490 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
4491 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4492 | if (end > i + 3) | |
4493 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 3], | |
4494 | &XVECTOR (menu_bar_items_vector)->contents[i], | |
4495 | (end - i - 3) * sizeof (Lisp_Object)); | |
4496 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem0; | |
4497 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem1; | |
4498 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem2; | |
4499 | break; | |
b7c49376 RS |
4500 | } |
4501 | } | |
9f9c0e27 | 4502 | |
b7c49376 RS |
4503 | /* Add nil, nil, nil at the end. */ |
4504 | i = menu_bar_items_index; | |
4505 | if (i + 3 > XVECTOR (menu_bar_items_vector)->size) | |
4506 | { | |
4507 | Lisp_Object tem; | |
4508 | int newsize = 2 * i; | |
4509 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
4510 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
4511 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
4512 | menu_bar_items_vector = tem; | |
9f9c0e27 | 4513 | } |
b7c49376 RS |
4514 | /* Add this item. */ |
4515 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4516 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4517 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
4518 | menu_bar_items_index = i; | |
a73c5e29 | 4519 | |
47d319aa | 4520 | Vinhibit_quit = oquit; |
b7c49376 RS |
4521 | UNGCPRO; |
4522 | return menu_bar_items_vector; | |
5ec75a55 RS |
4523 | } |
4524 | \f | |
4525 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 4526 | in menu_bar_items_vector. */ |
5ec75a55 | 4527 | |
b7c49376 RS |
4528 | static void |
4529 | menu_bar_one_keymap (keymap) | |
4530 | Lisp_Object keymap; | |
5ec75a55 RS |
4531 | { |
4532 | Lisp_Object tail, item, key, binding, item_string, table; | |
4533 | ||
4534 | /* Loop over all keymap entries that have menu strings. */ | |
8c18cbfb | 4535 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
4536 | { |
4537 | item = XCONS (tail)->car; | |
8c18cbfb | 4538 | if (CONSP (item)) |
5ec75a55 RS |
4539 | { |
4540 | key = XCONS (item)->car; | |
4541 | binding = XCONS (item)->cdr; | |
8c18cbfb | 4542 | if (CONSP (binding)) |
5ec75a55 RS |
4543 | { |
4544 | item_string = XCONS (binding)->car; | |
8c18cbfb | 4545 | if (STRINGP (item_string)) |
b7c49376 | 4546 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 4547 | } |
e58aa385 | 4548 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 4549 | menu_bar_item (key, Qnil, binding); |
5ec75a55 | 4550 | } |
8c18cbfb | 4551 | else if (VECTORP (item)) |
5ec75a55 RS |
4552 | { |
4553 | /* Loop over the char values represented in the vector. */ | |
4554 | int len = XVECTOR (item)->size; | |
4555 | int c; | |
4556 | for (c = 0; c < len; c++) | |
4557 | { | |
4558 | Lisp_Object character; | |
bb9e9bed | 4559 | XSETFASTINT (character, c); |
5ec75a55 | 4560 | binding = XVECTOR (item)->contents[c]; |
8c18cbfb | 4561 | if (CONSP (binding)) |
5ec75a55 RS |
4562 | { |
4563 | item_string = XCONS (binding)->car; | |
8c18cbfb | 4564 | if (STRINGP (item_string)) |
b7c49376 | 4565 | menu_bar_item (key, item_string, Fcdr (binding)); |
5ec75a55 | 4566 | } |
e58aa385 | 4567 | else if (EQ (binding, Qundefined)) |
8aa034e1 | 4568 | menu_bar_item (key, Qnil, binding); |
5ec75a55 RS |
4569 | } |
4570 | } | |
4571 | } | |
5ec75a55 RS |
4572 | } |
4573 | ||
047a8ea7 RS |
4574 | /* This is used as the handler when calling internal_condition_case_1. */ |
4575 | ||
4576 | static Lisp_Object | |
4577 | menu_bar_item_1 (arg) | |
4578 | Lisp_Object arg; | |
4579 | { | |
4580 | return Qnil; | |
4581 | } | |
4582 | ||
f5e09c8b RS |
4583 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
4584 | If there's already an item for KEY, add this DEF to it. */ | |
4585 | ||
b7c49376 RS |
4586 | static void |
4587 | menu_bar_item (key, item_string, def) | |
4588 | Lisp_Object key, item_string, def; | |
5ec75a55 | 4589 | { |
e58aa385 | 4590 | Lisp_Object tem; |
5ec75a55 | 4591 | Lisp_Object enabled; |
b7c49376 | 4592 | int i; |
5ec75a55 | 4593 | |
e58aa385 RS |
4594 | if (EQ (def, Qundefined)) |
4595 | { | |
f5e09c8b | 4596 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 4597 | discard any previously made menu bar item. */ |
b7c49376 RS |
4598 | |
4599 | for (i = 0; i < menu_bar_items_index; i += 3) | |
4600 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4601 | { | |
4602 | if (menu_bar_items_index > i + 3) | |
4603 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 3], | |
4604 | &XVECTOR (menu_bar_items_vector)->contents[i], | |
4605 | (menu_bar_items_index - i - 3) * sizeof (Lisp_Object)); | |
4606 | menu_bar_items_index -= 3; | |
4607 | return; | |
4608 | } | |
8aa034e1 RS |
4609 | |
4610 | /* If there's no definition for this key yet, | |
4611 | just ignore `undefined'. */ | |
4612 | return; | |
e58aa385 RS |
4613 | } |
4614 | ||
5ec75a55 RS |
4615 | /* See if this entry is enabled. */ |
4616 | enabled = Qt; | |
4617 | ||
8c18cbfb | 4618 | if (SYMBOLP (def)) |
5ec75a55 RS |
4619 | { |
4620 | /* No property, or nil, means enable. | |
4621 | Otherwise, enable if value is not nil. */ | |
4622 | tem = Fget (def, Qmenu_enable); | |
4623 | if (!NILP (tem)) | |
047a8ea7 RS |
4624 | /* (condition-case nil (eval tem) |
4625 | (error nil)) */ | |
4626 | enabled = internal_condition_case_1 (Feval, tem, Qerror, | |
4627 | menu_bar_item_1); | |
5ec75a55 RS |
4628 | } |
4629 | ||
b7c49376 RS |
4630 | /* Ignore this item if it's not enabled. */ |
4631 | if (NILP (enabled)) | |
4632 | return; | |
5ec75a55 | 4633 | |
f5e09c8b | 4634 | /* Find any existing item for this KEY. */ |
b7c49376 RS |
4635 | for (i = 0; i < menu_bar_items_index; i += 3) |
4636 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) | |
4637 | break; | |
4638 | ||
f5e09c8b | 4639 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
4640 | if (i == menu_bar_items_index) |
4641 | { | |
4642 | /* If vector is too small, get a bigger one. */ | |
4643 | if (i + 3 > XVECTOR (menu_bar_items_vector)->size) | |
4644 | { | |
4645 | Lisp_Object tem; | |
4646 | int newsize = 2 * i; | |
4647 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
4648 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
4649 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
4650 | menu_bar_items_vector = tem; | |
4651 | } | |
4652 | /* Add this item. */ | |
4653 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
4654 | XVECTOR (menu_bar_items_vector)->contents[i++] = item_string; | |
f5e09c8b | 4655 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (def, Qnil); |
b7c49376 RS |
4656 | menu_bar_items_index = i; |
4657 | } | |
f5e09c8b RS |
4658 | /* We did find an item for this KEY. Add DEF to its list of maps. */ |
4659 | else | |
4660 | { | |
4661 | Lisp_Object old; | |
4662 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4663 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (def, old); | |
4664 | } | |
5ec75a55 RS |
4665 | } |
4666 | \f | |
dcc408a0 RS |
4667 | /* Read a character using menus based on maps in the array MAPS. |
4668 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
4669 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
4670 | |
4671 | PREV_EVENT is the previous input event, or nil if we are reading | |
4672 | the first event of a key sequence. | |
4673 | ||
83d68044 | 4674 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 4675 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 4676 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
4677 | |
4678 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 4679 | and the strings associated with various map elements. |
8150596a RS |
4680 | |
4681 | This can be done with X menus or with menus put in the minibuf. | |
4682 | These are done in different ways, depending on how the input will be read. | |
4683 | Menus using X are done after auto-saving in read-char, getting the input | |
4684 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
4685 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 4686 | |
7617111f | 4687 | static Lisp_Object |
8150596a | 4688 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
4689 | int nmaps; |
4690 | Lisp_Object *maps; | |
4691 | Lisp_Object prev_event; | |
4692 | int *used_mouse_menu; | |
284f4730 | 4693 | { |
7d6de002 RS |
4694 | int mapno; |
4695 | register Lisp_Object name; | |
7d6de002 RS |
4696 | Lisp_Object rest, vector; |
4697 | ||
6569cc8d JB |
4698 | if (used_mouse_menu) |
4699 | *used_mouse_menu = 0; | |
284f4730 JB |
4700 | |
4701 | /* Use local over global Menu maps */ | |
4702 | ||
7d6de002 RS |
4703 | if (! menu_prompting) |
4704 | return Qnil; | |
4705 | ||
03361bcc RS |
4706 | /* Optionally disregard all but the global map. */ |
4707 | if (inhibit_local_menu_bar_menus) | |
4708 | { | |
4709 | maps += (nmaps - 1); | |
4710 | nmaps = 1; | |
4711 | } | |
4712 | ||
7d6de002 RS |
4713 | /* Get the menu name from the first map that has one (a prompt string). */ |
4714 | for (mapno = 0; mapno < nmaps; mapno++) | |
4715 | { | |
4716 | name = map_prompt (maps[mapno]); | |
4717 | if (!NILP (name)) | |
4718 | break; | |
4719 | } | |
284f4730 | 4720 | |
7d6de002 | 4721 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 4722 | if (mapno >= nmaps) |
7d6de002 RS |
4723 | return Qnil; |
4724 | ||
87485d6f | 4725 | #if (defined (HAVE_X_WINDOWS) && defined (HAVE_X_MENU)) || defined (MSDOS) |
7d6de002 RS |
4726 | /* If we got to this point via a mouse click, |
4727 | use a real menu for mouse selection. */ | |
5a8d99e0 KH |
4728 | if (EVENT_HAS_PARAMETERS (prev_event) |
4729 | && !EQ (XCONS (prev_event)->car, Qmenu_bar)) | |
7d6de002 RS |
4730 | { |
4731 | /* Display the menu and get the selection. */ | |
4732 | Lisp_Object *realmaps | |
4733 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
4734 | Lisp_Object value; | |
4735 | int nmaps1 = 0; | |
4736 | ||
4737 | /* Use the maps that are not nil. */ | |
4738 | for (mapno = 0; mapno < nmaps; mapno++) | |
4739 | if (!NILP (maps[mapno])) | |
4740 | realmaps[nmaps1++] = maps[mapno]; | |
4741 | ||
4742 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
4743 | if (CONSP (value)) |
4744 | { | |
4745 | /* If we got more than one event, put all but the first | |
4746 | onto this list to be read later. | |
4747 | Return just the first event now. */ | |
24597608 RS |
4748 | Vunread_command_events |
4749 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
4750 | value = XCONS (value)->car; |
4751 | } | |
1c90c381 | 4752 | else if (NILP (value)) |
dcc408a0 | 4753 | value = Qt; |
6569cc8d JB |
4754 | if (used_mouse_menu) |
4755 | *used_mouse_menu = 1; | |
7d6de002 RS |
4756 | return value; |
4757 | } | |
87485d6f | 4758 | #endif /* (HAVE_X_WINDOWS && HAVE_X_MENU) || MSDOS */ |
8150596a RS |
4759 | return Qnil ; |
4760 | } | |
4761 | ||
4762 | static Lisp_Object | |
24597608 | 4763 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
4764 | int commandflag ; |
4765 | int nmaps; | |
4766 | Lisp_Object *maps; | |
4767 | { | |
4768 | int mapno; | |
4769 | register Lisp_Object name; | |
4770 | int nlength; | |
4771 | int width = FRAME_WIDTH (selected_frame) - 4; | |
4772 | char *menu = (char *) alloca (width + 4); | |
4773 | int idx = -1; | |
9fdbfdf8 | 4774 | int nobindings = 1; |
8150596a RS |
4775 | Lisp_Object rest, vector; |
4776 | ||
4777 | if (! menu_prompting) | |
4778 | return Qnil; | |
4779 | ||
4780 | /* Get the menu name from the first map that has one (a prompt string). */ | |
4781 | for (mapno = 0; mapno < nmaps; mapno++) | |
4782 | { | |
4783 | name = map_prompt (maps[mapno]); | |
4784 | if (!NILP (name)) | |
4785 | break; | |
4786 | } | |
4787 | ||
4788 | /* If we don't have any menus, just read a character normally. */ | |
4789 | if (mapno >= nmaps) | |
4790 | return Qnil; | |
284f4730 JB |
4791 | |
4792 | /* Prompt string always starts with map's prompt, and a space. */ | |
4793 | strcpy (menu, XSTRING (name)->data); | |
4794 | nlength = XSTRING (name)->size; | |
7d6de002 | 4795 | menu[nlength++] = ':'; |
284f4730 JB |
4796 | menu[nlength++] = ' '; |
4797 | menu[nlength] = 0; | |
4798 | ||
7d6de002 RS |
4799 | /* Start prompting at start of first map. */ |
4800 | mapno = 0; | |
4801 | rest = maps[mapno]; | |
284f4730 JB |
4802 | |
4803 | /* Present the documented bindings, a line at a time. */ | |
4804 | while (1) | |
4805 | { | |
4806 | int notfirst = 0; | |
4807 | int i = nlength; | |
4808 | Lisp_Object obj; | |
4809 | int ch; | |
8066f1a1 | 4810 | Lisp_Object orig_defn_macro; |
284f4730 | 4811 | |
284f4730 | 4812 | /* Loop over elements of map. */ |
7d6de002 | 4813 | while (i < width) |
284f4730 | 4814 | { |
7d6de002 | 4815 | Lisp_Object s, elt; |
284f4730 | 4816 | |
7d6de002 RS |
4817 | /* If reached end of map, start at beginning of next map. */ |
4818 | if (NILP (rest)) | |
4819 | { | |
4820 | mapno++; | |
4821 | /* At end of last map, wrap around to first map if just starting, | |
4822 | or end this line if already have something on it. */ | |
4823 | if (mapno == nmaps) | |
284f4730 | 4824 | { |
8150596a | 4825 | mapno = 0; |
40932d1a | 4826 | if (notfirst || nobindings) break; |
284f4730 | 4827 | } |
7d6de002 | 4828 | rest = maps[mapno]; |
284f4730 | 4829 | } |
7d6de002 RS |
4830 | |
4831 | /* Look at the next element of the map. */ | |
4832 | if (idx >= 0) | |
4833 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 4834 | else |
7d6de002 RS |
4835 | elt = Fcar_safe (rest); |
4836 | ||
8c18cbfb | 4837 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 4838 | { |
7d6de002 RS |
4839 | /* If we found a dense table in the keymap, |
4840 | advanced past it, but start scanning its contents. */ | |
4841 | rest = Fcdr_safe (rest); | |
4842 | vector = elt; | |
4843 | idx = 0; | |
284f4730 | 4844 | } |
7d6de002 RS |
4845 | else |
4846 | { | |
4847 | /* An ordinary element. */ | |
0a2ea221 KH |
4848 | Lisp_Object event; |
4849 | ||
4850 | if (idx < 0) | |
4851 | { | |
4852 | s = Fcar_safe (Fcdr_safe (elt)); /* alist */ | |
4853 | event = Fcar_safe (elt); | |
4854 | } | |
8150596a | 4855 | else |
7d6de002 | 4856 | { |
0a2ea221 KH |
4857 | s = Fcar_safe (elt); /* vector */ |
4858 | XSETINT (event, idx); | |
4859 | } | |
4860 | ||
4861 | /* Ignore the element if it has no prompt string. */ | |
4862 | if (STRINGP (s) && INTEGERP (event)) | |
4863 | { | |
4864 | /* 1 if the char to type matches the string. */ | |
4865 | int char_matches; | |
4866 | Lisp_Object upcased_event, downcased_event; | |
4867 | Lisp_Object desc; | |
4868 | ||
4869 | upcased_event = Fupcase (event); | |
4870 | downcased_event = Fdowncase (event); | |
4871 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
4872 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
4873 | if (! char_matches) | |
4874 | desc = Fsingle_key_description (event); | |
4875 | ||
4876 | /* If we have room for the prompt string, add it to this line. | |
4877 | If this is the first on the line, always add it. */ | |
4878 | if ((XSTRING (s)->size + i + 2 | |
4879 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
4880 | < width | |
4881 | || !notfirst) | |
4882 | { | |
4883 | int thiswidth; | |
4884 | ||
4885 | /* Punctuate between strings. */ | |
4886 | if (notfirst) | |
4887 | { | |
4888 | strcpy (menu + i, ", "); | |
4889 | i += 2; | |
4890 | } | |
4891 | notfirst = 1; | |
4892 | nobindings = 0 ; | |
284f4730 | 4893 | |
0a2ea221 KH |
4894 | /* If the char to type doesn't match the string's |
4895 | first char, explicitly show what char to type. */ | |
4896 | if (! char_matches) | |
4897 | { | |
4898 | /* Add as much of string as fits. */ | |
4899 | thiswidth = XSTRING (desc)->size; | |
4900 | if (thiswidth + i > width) | |
4901 | thiswidth = width - i; | |
4902 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
4903 | i += thiswidth; | |
4904 | strcpy (menu + i, " = "); | |
4905 | i += 3; | |
4906 | } | |
4907 | ||
4908 | /* Add as much of string as fits. */ | |
4909 | thiswidth = XSTRING (s)->size; | |
4910 | if (thiswidth + i > width) | |
4911 | thiswidth = width - i; | |
4912 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
4913 | i += thiswidth; | |
4914 | menu[i] = 0; | |
4915 | } | |
4916 | else | |
7d6de002 | 4917 | { |
0a2ea221 KH |
4918 | /* If this element does not fit, end the line now, |
4919 | and save the element for the next line. */ | |
4920 | strcpy (menu + i, "..."); | |
4921 | break; | |
7d6de002 | 4922 | } |
7d6de002 RS |
4923 | } |
4924 | ||
4925 | /* Move past this element. */ | |
8150596a | 4926 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
4927 | /* Handle reaching end of dense table. */ |
4928 | idx = -1; | |
4929 | if (idx >= 0) | |
4930 | idx++; | |
4931 | else | |
4932 | rest = Fcdr_safe (rest); | |
4933 | } | |
284f4730 JB |
4934 | } |
4935 | ||
4936 | /* Prompt with that and read response. */ | |
4937 | message1 (menu); | |
8150596a | 4938 | |
df0f2ba1 | 4939 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
4940 | is pressed. Help characters are not recorded because menu prompting |
4941 | is not used on replay. | |
4942 | */ | |
c5fdd383 KH |
4943 | orig_defn_macro = current_kboard->defining_kbd_macro; |
4944 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
4945 | do |
4946 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 4947 | while (BUFFERP (obj)); |
c5fdd383 | 4948 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 4949 | |
8c18cbfb | 4950 | if (!INTEGERP (obj)) |
284f4730 JB |
4951 | return obj; |
4952 | else | |
4953 | ch = XINT (obj); | |
4954 | ||
f4255cd1 | 4955 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 4956 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 4957 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 4958 | { |
c5fdd383 | 4959 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 4960 | store_kbd_macro_char (obj); |
8150596a RS |
4961 | return obj; |
4962 | } | |
4963 | /* Help char - go round again */ | |
284f4730 JB |
4964 | } |
4965 | } | |
284f4730 JB |
4966 | \f |
4967 | /* Reading key sequences. */ | |
4968 | ||
4969 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
4970 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
4971 | keymap, or nil otherwise. Return the index of the first keymap in | |
4972 | which KEY has any binding, or NMAPS if no map has a binding. | |
4973 | ||
4974 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
4975 | followed by the corresponding non-meta character. Keymaps in | |
4976 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
4977 | NEXT. | |
4978 | ||
88cb0656 JB |
4979 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
4980 | unmodified. | |
4981 | ||
284f4730 JB |
4982 | NEXT may == CURRENT. */ |
4983 | ||
4984 | static int | |
4e50f26a | 4985 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
4986 | Lisp_Object key; |
4987 | Lisp_Object *current, *defs, *next; | |
4988 | int nmaps; | |
4989 | { | |
4990 | int i, first_binding; | |
4991 | ||
4992 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
4993 | followed by the corresponding non-meta character. */ | |
8c18cbfb | 4994 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
4995 | { |
4996 | for (i = 0; i < nmaps; i++) | |
4997 | if (! NILP (current[i])) | |
4998 | { | |
cd21b839 | 4999 | next[i] = |
e74fbc70 | 5000 | get_keyelt (access_keymap (current[i], meta_prefix_char, 1, 0)); |
284f4730 JB |
5001 | |
5002 | /* Note that since we pass the resulting bindings through | |
5003 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
5004 | disappear. */ | |
f4255cd1 | 5005 | next[i] = get_keymap_1 (next[i], 0, 1); |
284f4730 JB |
5006 | } |
5007 | else | |
5008 | next[i] = Qnil; | |
5009 | ||
5010 | current = next; | |
18cd2eeb | 5011 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
5012 | } |
5013 | ||
5014 | first_binding = nmaps; | |
5015 | for (i = nmaps - 1; i >= 0; i--) | |
5016 | { | |
5017 | if (! NILP (current[i])) | |
5018 | { | |
e74fbc70 | 5019 | defs[i] = get_keyelt (access_keymap (current[i], key, 1, 0)); |
284f4730 JB |
5020 | if (! NILP (defs[i])) |
5021 | first_binding = i; | |
5022 | } | |
5023 | else | |
5024 | defs[i] = Qnil; | |
5025 | } | |
5026 | ||
284f4730 | 5027 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
5028 | if (first_binding < nmaps) |
5029 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 5030 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
5031 | |
5032 | return first_binding; | |
5033 | } | |
5034 | ||
df0f2ba1 | 5035 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
5036 | storing it in KEYBUF, a buffer of size BUFSIZE. |
5037 | Prompt with PROMPT. | |
284f4730 | 5038 | Return the length of the key sequence stored. |
dcc408a0 | 5039 | Return -1 if the user rejected a command menu. |
284f4730 | 5040 | |
f4255cd1 JB |
5041 | Echo starting immediately unless `prompt' is 0. |
5042 | ||
5043 | Where a key sequence ends depends on the currently active keymaps. | |
5044 | These include any minor mode keymaps active in the current buffer, | |
5045 | the current buffer's local map, and the global map. | |
5046 | ||
5047 | If a key sequence has no other bindings, we check Vfunction_key_map | |
5048 | to see if some trailing subsequence might be the beginning of a | |
5049 | function key's sequence. If so, we try to read the whole function | |
5050 | key, and substitute its symbolic name into the key sequence. | |
5051 | ||
fbcd35bd JB |
5052 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
5053 | `double-' events into similar click events, if that would make them | |
5054 | bound. We try to turn `triple-' events first into `double-' events, | |
5055 | then into clicks. | |
f4255cd1 JB |
5056 | |
5057 | If we get a mouse click in a mode line, vertical divider, or other | |
5058 | non-text area, we treat the click as if it were prefixed by the | |
5059 | symbol denoting that area - `mode-line', `vertical-line', or | |
5060 | whatever. | |
5061 | ||
5062 | If the sequence starts with a mouse click, we read the key sequence | |
5063 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 5064 | |
f4255cd1 JB |
5065 | If the user switches frames in the midst of a key sequence, we put |
5066 | off the switch-frame event until later; the next call to | |
5067 | read_char will return it. */ | |
48e416d4 | 5068 | |
284f4730 | 5069 | static int |
ce98e608 KH |
5070 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
5071 | can_return_switch_frame) | |
284f4730 JB |
5072 | Lisp_Object *keybuf; |
5073 | int bufsize; | |
84d91fda | 5074 | Lisp_Object prompt; |
309b0fc8 | 5075 | int dont_downcase_last; |
ce98e608 | 5076 | int can_return_switch_frame; |
284f4730 | 5077 | { |
f4255cd1 JB |
5078 | int count = specpdl_ptr - specpdl; |
5079 | ||
284f4730 JB |
5080 | /* How many keys there are in the current key sequence. */ |
5081 | int t; | |
5082 | ||
284f4730 JB |
5083 | /* The length of the echo buffer when we started reading, and |
5084 | the length of this_command_keys when we started reading. */ | |
5085 | int echo_start; | |
f4255cd1 | 5086 | int keys_start; |
284f4730 JB |
5087 | |
5088 | /* The number of keymaps we're scanning right now, and the number of | |
5089 | keymaps we have allocated space for. */ | |
5090 | int nmaps; | |
5091 | int nmaps_allocated = 0; | |
5092 | ||
284f4730 JB |
5093 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
5094 | the current keymaps. */ | |
5095 | Lisp_Object *defs; | |
5096 | ||
f4255cd1 JB |
5097 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
5098 | in the current keymaps, or nil where it is not a prefix. */ | |
5099 | Lisp_Object *submaps; | |
5100 | ||
e0dff5f6 RS |
5101 | /* The local map to start out with at start of key sequence. */ |
5102 | Lisp_Object orig_local_map; | |
5103 | ||
5104 | /* 1 if we have already considered switching to the local-map property | |
5105 | of the place where a mouse click occurred. */ | |
5106 | int localized_local_map = 0; | |
5107 | ||
f4255cd1 JB |
5108 | /* The index in defs[] of the first keymap that has a binding for |
5109 | this key sequence. In other words, the lowest i such that | |
5110 | defs[i] is non-nil. */ | |
284f4730 JB |
5111 | int first_binding; |
5112 | ||
f4255cd1 | 5113 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
5114 | input key. |
5115 | ||
5116 | We use this to recover after recognizing a function key. Once we | |
5117 | realize that a suffix of the current key sequence is actually a | |
5118 | function key's escape sequence, we replace the suffix with the | |
5119 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
5120 | contains a new and different key sequence, so the echo area, |
5121 | this_command_keys, and the submaps and defs arrays are wrong. In | |
5122 | this situation, we set mock_input to t, set t to 0, and jump to | |
5123 | restart_sequence; the loop will read keys from keybuf up until | |
5124 | mock_input, thus rebuilding the state; and then it will resume | |
5125 | reading characters from the keyboard. */ | |
284f4730 JB |
5126 | int mock_input = 0; |
5127 | ||
253598e4 | 5128 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
5129 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
5130 | and fkey_map is its binding. | |
253598e4 | 5131 | |
f4255cd1 JB |
5132 | These might be > t, indicating that all function key scanning |
5133 | should hold off until t reaches them. We do this when we've just | |
5134 | recognized a function key, to avoid searching for the function | |
5135 | key's again in Vfunction_key_map. */ | |
284f4730 | 5136 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 5137 | Lisp_Object fkey_map; |
284f4730 | 5138 | |
a612e298 RS |
5139 | /* Likewise, for key_translation_map. */ |
5140 | int keytran_start = 0, keytran_end = 0; | |
5141 | Lisp_Object keytran_map; | |
5142 | ||
cd21b839 JB |
5143 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
5144 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 5145 | Lisp_Object delayed_switch_frame; |
cd21b839 | 5146 | |
51763820 BF |
5147 | /* See the comment below... */ |
5148 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 5149 | Lisp_Object first_event; |
51763820 | 5150 | #endif |
4efda7dd | 5151 | |
309b0fc8 RS |
5152 | Lisp_Object original_uppercase; |
5153 | int original_uppercase_position = -1; | |
5154 | ||
bc536d84 | 5155 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 5156 | int dummyflag = 0; |
bc536d84 | 5157 | |
3b9189f8 RS |
5158 | struct buffer *starting_buffer; |
5159 | ||
e9bf89a0 RS |
5160 | /* Nonzero if we seem to have got the beginning of a binding |
5161 | in function_key_map. */ | |
5162 | int function_key_possible = 0; | |
00a78037 | 5163 | int key_translation_possible = 0; |
e9bf89a0 | 5164 | |
4efda7dd RS |
5165 | int junk; |
5166 | ||
5167 | last_nonmenu_event = Qnil; | |
5168 | ||
5169 | delayed_switch_frame = Qnil; | |
5170 | fkey_map = Vfunction_key_map; | |
a612e298 | 5171 | keytran_map = Vkey_translation_map; |
f4255cd1 | 5172 | |
a612e298 | 5173 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
5174 | if (NILP (Fkeymapp (Vfunction_key_map))) |
5175 | fkey_start = fkey_end = bufsize + 1; | |
5176 | ||
a612e298 RS |
5177 | /* If there is no key-translation-map, turn off scanning. */ |
5178 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
5179 | keytran_start = keytran_end = bufsize + 1; | |
5180 | ||
284f4730 JB |
5181 | if (INTERACTIVE) |
5182 | { | |
84d91fda RS |
5183 | if (!NILP (prompt)) |
5184 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 5185 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
5186 | /* This doesn't put in a dash if the echo buffer is empty, so |
5187 | you don't always see a dash hanging out in the minibuffer. */ | |
5188 | echo_dash (); | |
284f4730 JB |
5189 | } |
5190 | ||
f4255cd1 JB |
5191 | /* Record the initial state of the echo area and this_command_keys; |
5192 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 5193 | if (INTERACTIVE) |
df0f2ba1 | 5194 | echo_start = echo_length (); |
f4255cd1 | 5195 | keys_start = this_command_key_count; |
0a7f1fc0 | 5196 | |
51763820 BF |
5197 | #if defined (GOBBLE_FIRST_EVENT) |
5198 | /* This doesn't quite work, because some of the things that read_char | |
5199 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 5200 | this work right. */ |
51763820 | 5201 | |
4efda7dd RS |
5202 | /* Read the first char of the sequence specially, before setting |
5203 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 5204 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 5205 | &junk); |
51763820 | 5206 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 5207 | |
e0dff5f6 RS |
5208 | orig_local_map = get_local_map (PT, current_buffer); |
5209 | ||
7b4aedb9 JB |
5210 | /* We jump here when the key sequence has been thoroughly changed, and |
5211 | we need to rescan it starting from the beginning. When we jump here, | |
5212 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 5213 | replay_sequence: |
7b4aedb9 | 5214 | |
3b9189f8 | 5215 | starting_buffer = current_buffer; |
e9bf89a0 | 5216 | function_key_possible = 0; |
00a78037 | 5217 | key_translation_possible = 0; |
3b9189f8 | 5218 | |
f4255cd1 | 5219 | /* Build our list of keymaps. |
07d2b8de JB |
5220 | If we recognize a function key and replace its escape sequence in |
5221 | keybuf with its symbol, or if the sequence starts with a mouse | |
5222 | click and we need to switch buffers, we jump back here to rebuild | |
5223 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5224 | { |
284f4730 JB |
5225 | Lisp_Object *maps; |
5226 | ||
217258d5 KH |
5227 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
5228 | || !NILP (Voverriding_local_map)) | |
284f4730 | 5229 | { |
217258d5 | 5230 | if (3 > nmaps_allocated) |
9dd3131c | 5231 | { |
217258d5 KH |
5232 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
5233 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
5234 | nmaps_allocated = 3; | |
9dd3131c | 5235 | } |
217258d5 KH |
5236 | nmaps = 0; |
5237 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5238 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5239 | if (!NILP (Voverriding_local_map)) | |
5240 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 5241 | } |
9dd3131c RS |
5242 | else |
5243 | { | |
217258d5 KH |
5244 | nmaps = current_minor_maps (0, &maps); |
5245 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 5246 | { |
217258d5 KH |
5247 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
5248 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
5249 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 5250 | } |
217258d5 | 5251 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 5252 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5253 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 5254 | #else |
217258d5 | 5255 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 5256 | #endif |
9dd3131c | 5257 | } |
217258d5 | 5258 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
5259 | } |
5260 | ||
5261 | /* Find an accurate initial value for first_binding. */ | |
5262 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 5263 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
5264 | break; |
5265 | ||
3b9189f8 | 5266 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
5267 | t = 0; |
5268 | ||
5269 | /* These are no-ops the first time through, but if we restart, they | |
5270 | revert the echo area and this_command_keys to their original state. */ | |
5271 | this_command_key_count = keys_start; | |
df0f2ba1 | 5272 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
5273 | echo_truncate (echo_start); |
5274 | ||
cca310da JB |
5275 | /* If the best binding for the current key sequence is a keymap, or |
5276 | we may be looking at a function key's escape sequence, keep on | |
5277 | reading. */ | |
253598e4 | 5278 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
5279 | || (first_binding >= nmaps |
5280 | && fkey_start < t | |
5281 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 5282 | && mock_input <= fkey_start) |
0d882d52 KH |
5283 | || (first_binding >= nmaps |
5284 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
5285 | /* Don't return in the middle of a possible function key sequence, |
5286 | if the only bindings we found were via case conversion. | |
5287 | Thus, if ESC O a has a function-key-map translation | |
5288 | and ESC o has a binding, don't return after ESC O, | |
5289 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 5290 | ) |
284f4730 JB |
5291 | { |
5292 | Lisp_Object key; | |
7d6de002 | 5293 | int used_mouse_menu = 0; |
284f4730 | 5294 | |
7b4aedb9 JB |
5295 | /* Where the last real key started. If we need to throw away a |
5296 | key that has expanded into more than one element of keybuf | |
5297 | (say, a mouse click on the mode line which is being treated | |
5298 | as [mode-line (mouse-...)], then we backtrack to this point | |
5299 | of keybuf. */ | |
5300 | int last_real_key_start; | |
5301 | ||
0a7f1fc0 JB |
5302 | /* These variables are analogous to echo_start and keys_start; |
5303 | while those allow us to restart the entire key sequence, | |
5304 | echo_local_start and keys_local_start allow us to throw away | |
5305 | just one key. */ | |
f4255cd1 JB |
5306 | int echo_local_start, keys_local_start, local_first_binding; |
5307 | ||
284f4730 JB |
5308 | if (t >= bufsize) |
5309 | error ("key sequence too long"); | |
5310 | ||
f4255cd1 JB |
5311 | if (INTERACTIVE) |
5312 | echo_local_start = echo_length (); | |
5313 | keys_local_start = this_command_key_count; | |
5314 | local_first_binding = first_binding; | |
df0f2ba1 | 5315 | |
f4255cd1 | 5316 | replay_key: |
0a7f1fc0 | 5317 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
5318 | jumped back up to replay_key; in that case, these restore the |
5319 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 5320 | loop. */ |
40932d1a | 5321 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 5322 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
5323 | this_command_key_count = keys_local_start; |
5324 | first_binding = local_first_binding; | |
5325 | ||
7e85b935 RS |
5326 | /* By default, assume each event is "real". */ |
5327 | last_real_key_start = t; | |
5328 | ||
f4255cd1 | 5329 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
5330 | if (t < mock_input) |
5331 | { | |
5332 | key = keybuf[t]; | |
5333 | add_command_key (key); | |
a98ea3f9 RS |
5334 | if (echo_keystrokes) |
5335 | echo_char (key); | |
284f4730 | 5336 | } |
253598e4 JB |
5337 | |
5338 | /* If not, we should actually read a character. */ | |
284f4730 JB |
5339 | else |
5340 | { | |
a6d53864 RS |
5341 | struct buffer *buf = current_buffer; |
5342 | ||
beecf6a1 | 5343 | { |
c5fdd383 KH |
5344 | #ifdef MULTI_KBOARD |
5345 | KBOARD *interrupted_kboard = current_kboard; | |
df0f2ba1 | 5346 | struct frame *interrupted_frame = selected_frame; |
c5fdd383 | 5347 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 5348 | { |
5798cf15 KH |
5349 | if (!NILP (delayed_switch_frame)) |
5350 | { | |
c5fdd383 | 5351 | interrupted_kboard->kbd_queue |
5798cf15 | 5352 | = Fcons (delayed_switch_frame, |
c5fdd383 | 5353 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
5354 | delayed_switch_frame = Qnil; |
5355 | } | |
beecf6a1 | 5356 | while (t > 0) |
c5fdd383 KH |
5357 | interrupted_kboard->kbd_queue |
5358 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
5359 | |
5360 | /* If the side queue is non-empty, ensure it begins with a | |
5361 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
5362 | if (CONSP (interrupted_kboard->kbd_queue) |
5363 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
5364 | !(EVENT_HAS_PARAMETERS (key) |
5365 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
5366 | Qswitch_frame)))) | |
df0f2ba1 KH |
5367 | { |
5368 | Lisp_Object frame; | |
5369 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 5370 | interrupted_kboard->kbd_queue |
df0f2ba1 | 5371 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 5372 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 5373 | } |
beecf6a1 | 5374 | mock_input = 0; |
a6e0153c | 5375 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
5376 | goto replay_sequence; |
5377 | } | |
bded54dd | 5378 | #endif |
beecf6a1 KH |
5379 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
5380 | &used_mouse_menu); | |
5381 | } | |
284f4730 | 5382 | |
dcc408a0 RS |
5383 | /* read_char returns t when it shows a menu and the user rejects it. |
5384 | Just return -1. */ | |
5385 | if (EQ (key, Qt)) | |
5386 | return -1; | |
5387 | ||
f4255cd1 | 5388 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
5389 | Emacs 18 handles this by returning immediately with a |
5390 | zero, so that's what we'll do. */ | |
8c18cbfb | 5391 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 5392 | { |
f4255cd1 | 5393 | t = 0; |
bc536d84 RS |
5394 | /* The Microsoft C compiler can't handle the goto that |
5395 | would go here. */ | |
309b0fc8 | 5396 | dummyflag = 1; |
bc536d84 | 5397 | break; |
cd21b839 | 5398 | } |
df0f2ba1 | 5399 | |
3cb81011 KH |
5400 | /* If the current buffer has been changed from under us, the |
5401 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 5402 | if (BUFFERP (key)) |
3cb81011 KH |
5403 | { |
5404 | mock_input = t; | |
a6e0153c | 5405 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
5406 | goto replay_sequence; |
5407 | } | |
5408 | ||
3b9189f8 RS |
5409 | /* If we have a quit that was typed in another frame, and |
5410 | quit_throw_to_read_char switched buffers, | |
5411 | replay to get the right keymap. */ | |
9343ab07 | 5412 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 RS |
5413 | { |
5414 | keybuf[t++] = key; | |
5415 | mock_input = t; | |
5416 | Vquit_flag = Qnil; | |
a6e0153c | 5417 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
5418 | goto replay_sequence; |
5419 | } | |
3cb81011 | 5420 | |
284f4730 | 5421 | Vquit_flag = Qnil; |
7e85b935 | 5422 | } |
284f4730 | 5423 | |
df0f2ba1 | 5424 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
5425 | in their CHAR-ADDRESS field. For example, a click on |
5426 | the mode line is prefixed by the symbol `mode-line'. | |
5427 | ||
5428 | Furthermore, key sequences beginning with mouse clicks | |
5429 | are read using the keymaps of the buffer clicked on, not | |
5430 | the current buffer. So we may have to switch the buffer | |
5431 | here. | |
5432 | ||
5433 | When we turn one event into two events, we must make sure | |
5434 | that neither of the two looks like the original--so that, | |
5435 | if we replay the events, they won't be expanded again. | |
5436 | If not for this, such reexpansion could happen either here | |
5437 | or when user programs play with this-command-keys. */ | |
5438 | if (EVENT_HAS_PARAMETERS (key)) | |
5439 | { | |
9b8eb840 | 5440 | Lisp_Object kind; |
cca310da | 5441 | |
9b8eb840 | 5442 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 5443 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 5444 | { |
9b8eb840 | 5445 | Lisp_Object window, posn; |
f4255cd1 | 5446 | |
9b8eb840 KH |
5447 | window = POSN_WINDOW (EVENT_START (key)); |
5448 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
8c18cbfb | 5449 | if (CONSP (posn)) |
0a7f1fc0 | 5450 | { |
7e85b935 RS |
5451 | /* We're looking at the second event of a |
5452 | sequence which we expanded before. Set | |
5453 | last_real_key_start appropriately. */ | |
5454 | if (t > 0) | |
5455 | last_real_key_start = t - 1; | |
cd21b839 | 5456 | } |
7e85b935 RS |
5457 | |
5458 | /* Key sequences beginning with mouse clicks are | |
5459 | read using the keymaps in the buffer clicked on, | |
5460 | not the current buffer. If we're at the | |
5461 | beginning of a key sequence, switch buffers. */ | |
5462 | if (last_real_key_start == 0 | |
8c18cbfb KH |
5463 | && WINDOWP (window) |
5464 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 5465 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 5466 | { |
7e85b935 RS |
5467 | keybuf[t] = key; |
5468 | mock_input = t + 1; | |
5469 | ||
5470 | /* Arrange to go back to the original buffer once we're | |
5471 | done reading the key sequence. Note that we can't | |
5472 | use save_excursion_{save,restore} here, because they | |
5473 | save point as well as the current buffer; we don't | |
5474 | want to save point, because redisplay may change it, | |
5475 | to accommodate a Fset_window_start or something. We | |
5476 | don't want to do this at the top of the function, | |
5477 | because we may get input from a subprocess which | |
5478 | wants to change the selected window and stuff (say, | |
5479 | emacsclient). */ | |
5480 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
5481 | ||
5482 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); | |
e0dff5f6 | 5483 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 5484 | goto replay_sequence; |
0a7f1fc0 | 5485 | } |
e0dff5f6 RS |
5486 | /* For a mouse click, get the local text-property keymap |
5487 | of the place clicked on, rather than point. */ | |
5488 | if (last_real_key_start == 0 && CONSP (XCONS (key)->cdr) | |
5489 | && ! localized_local_map) | |
5ec75a55 | 5490 | { |
e0dff5f6 RS |
5491 | Lisp_Object map_here, start, pos; |
5492 | ||
5493 | localized_local_map = 1; | |
5494 | start = EVENT_START (key); | |
5495 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) | |
5496 | { | |
5497 | pos = POSN_BUFFER_POSN (start); | |
5498 | if (INTEGERP (pos)) | |
5499 | { | |
5500 | map_here = get_local_map (XINT (pos), current_buffer); | |
5501 | if (!EQ (map_here, orig_local_map)) | |
5502 | { | |
5503 | orig_local_map = map_here; | |
5504 | keybuf[t] = key; | |
5505 | mock_input = t + 1; | |
5ec75a55 | 5506 | |
e0dff5f6 RS |
5507 | goto replay_sequence; |
5508 | } | |
5509 | } | |
5510 | } | |
5511 | } | |
5512 | ||
5513 | /* Expand mode-line and scroll-bar events into two events: | |
5514 | use posn as a fake prefix key. */ | |
5515 | if (SYMBOLP (posn)) | |
5516 | { | |
7e85b935 RS |
5517 | if (t + 1 >= bufsize) |
5518 | error ("key sequence too long"); | |
5519 | keybuf[t] = posn; | |
5520 | keybuf[t+1] = key; | |
5521 | mock_input = t + 2; | |
5522 | ||
5523 | /* Zap the position in key, so we know that we've | |
5524 | expanded it, and don't try to do so again. */ | |
5525 | POSN_BUFFER_POSN (EVENT_START (key)) | |
5526 | = Fcons (posn, Qnil); | |
5527 | goto replay_key; | |
5ec75a55 | 5528 | } |
0a7f1fc0 | 5529 | } |
7e85b935 | 5530 | else if (EQ (kind, Qswitch_frame)) |
a6d53864 | 5531 | { |
ce98e608 KH |
5532 | /* If we're at the beginning of a key sequence, and the caller |
5533 | says it's okay, go ahead and return this event. If we're | |
5534 | in the midst of a key sequence, delay it until the end. */ | |
5535 | if (t > 0 || !can_return_switch_frame) | |
7e85b935 RS |
5536 | { |
5537 | delayed_switch_frame = key; | |
5538 | goto replay_key; | |
5539 | } | |
5540 | } | |
7a80a6f6 RS |
5541 | else if (CONSP (XCONS (key)->cdr) |
5542 | && CONSP (EVENT_START (key)) | |
5543 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 5544 | { |
9b8eb840 | 5545 | Lisp_Object posn; |
7e85b935 | 5546 | |
9b8eb840 | 5547 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
5548 | /* Handle menu-bar events: |
5549 | insert the dummy prefix event `menu-bar'. */ | |
5550 | if (EQ (posn, Qmenu_bar)) | |
5551 | { | |
5552 | if (t + 1 >= bufsize) | |
5553 | error ("key sequence too long"); | |
7e85b935 RS |
5554 | keybuf[t] = posn; |
5555 | keybuf[t+1] = key; | |
5556 | ||
5557 | /* Zap the position in key, so we know that we've | |
5558 | expanded it, and don't try to do so again. */ | |
5559 | POSN_BUFFER_POSN (EVENT_START (key)) | |
5560 | = Fcons (posn, Qnil); | |
5561 | ||
5562 | mock_input = t + 2; | |
5563 | goto replay_sequence; | |
5564 | } | |
8c18cbfb | 5565 | else if (CONSP (posn)) |
7e85b935 RS |
5566 | { |
5567 | /* We're looking at the second event of a | |
5568 | sequence which we expanded before. Set | |
5569 | last_real_key_start appropriately. */ | |
5570 | if (last_real_key_start == t && t > 0) | |
5571 | last_real_key_start = t - 1; | |
5572 | } | |
a6d53864 | 5573 | } |
284f4730 | 5574 | } |
f4255cd1 JB |
5575 | |
5576 | /* We have finally decided that KEY is something we might want | |
5577 | to look up. */ | |
284f4730 JB |
5578 | first_binding = (follow_key (key, |
5579 | nmaps - first_binding, | |
253598e4 | 5580 | submaps + first_binding, |
284f4730 | 5581 | defs + first_binding, |
4e50f26a | 5582 | submaps + first_binding) |
284f4730 | 5583 | + first_binding); |
0a7f1fc0 | 5584 | |
f4255cd1 | 5585 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
5586 | if (first_binding >= nmaps) |
5587 | { | |
9b8eb840 | 5588 | Lisp_Object head; |
0a7f1fc0 | 5589 | |
9b8eb840 | 5590 | head = EVENT_HEAD (key); |
24736fbc | 5591 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
5592 | { |
5593 | read_key_sequence_cmd = Vprefix_help_command; | |
5594 | keybuf[t++] = key; | |
5595 | last_nonmenu_event = key; | |
bc536d84 RS |
5596 | /* The Microsoft C compiler can't handle the goto that |
5597 | would go here. */ | |
309b0fc8 | 5598 | dummyflag = 1; |
0d882d52 | 5599 | break; |
7e85b935 RS |
5600 | } |
5601 | ||
8c18cbfb | 5602 | if (SYMBOLP (head)) |
0a7f1fc0 | 5603 | { |
9b8eb840 KH |
5604 | Lisp_Object breakdown; |
5605 | int modifiers; | |
0a7f1fc0 | 5606 | |
9b8eb840 KH |
5607 | breakdown = parse_modifiers (head); |
5608 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
5609 | /* Attempt to reduce an unbound mouse event to a simpler |
5610 | event that is bound: | |
5611 | Drags reduce to clicks. | |
5612 | Double-clicks reduce to clicks. | |
5613 | Triple-clicks reduce to double-clicks, then to clicks. | |
5614 | Down-clicks are eliminated. | |
5615 | Double-downs reduce to downs, then are eliminated. | |
5616 | Triple-downs reduce to double-downs, then to downs, | |
5617 | then are eliminated. */ | |
5618 | if (modifiers & (down_modifier | drag_modifier | |
5619 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 5620 | { |
559f9d04 RS |
5621 | while (modifiers & (down_modifier | drag_modifier |
5622 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
5623 | { |
5624 | Lisp_Object new_head, new_click; | |
5625 | if (modifiers & triple_modifier) | |
5626 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
5627 | else if (modifiers & double_modifier) |
5628 | modifiers &= ~double_modifier; | |
5629 | else if (modifiers & drag_modifier) | |
5630 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
5631 | else |
5632 | { | |
5633 | /* Dispose of this `down' event by simply jumping | |
5634 | back to replay_key, to get another event. | |
5635 | ||
5636 | Note that if this event came from mock input, | |
5637 | then just jumping back to replay_key will just | |
5638 | hand it to us again. So we have to wipe out any | |
5639 | mock input. | |
5640 | ||
5641 | We could delete keybuf[t] and shift everything | |
5642 | after that to the left by one spot, but we'd also | |
5643 | have to fix up any variable that points into | |
5644 | keybuf, and shifting isn't really necessary | |
5645 | anyway. | |
5646 | ||
5647 | Adding prefixes for non-textual mouse clicks | |
5648 | creates two characters of mock input, and both | |
5649 | must be thrown away. If we're only looking at | |
5650 | the prefix now, we can just jump back to | |
5651 | replay_key. On the other hand, if we've already | |
5652 | processed the prefix, and now the actual click | |
5653 | itself is giving us trouble, then we've lost the | |
5654 | state of the keymaps we want to backtrack to, and | |
5655 | we need to replay the whole sequence to rebuild | |
5656 | it. | |
5657 | ||
5658 | Beyond that, only function key expansion could | |
5659 | create more than two keys, but that should never | |
5660 | generate mouse events, so it's okay to zero | |
5661 | mock_input in that case too. | |
5662 | ||
5663 | Isn't this just the most wonderful code ever? */ | |
5664 | if (t == last_real_key_start) | |
5665 | { | |
5666 | mock_input = 0; | |
5667 | goto replay_key; | |
5668 | } | |
5669 | else | |
5670 | { | |
5671 | mock_input = last_real_key_start; | |
5672 | goto replay_sequence; | |
5673 | } | |
5674 | } | |
5675 | ||
27203ead RS |
5676 | new_head |
5677 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
5678 | new_click | |
5679 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
5680 | |
5681 | /* Look for a binding for this new key. follow_key | |
5682 | promises that it didn't munge submaps the | |
5683 | last time we called it, since key was unbound. */ | |
27203ead RS |
5684 | first_binding |
5685 | = (follow_key (new_click, | |
5686 | nmaps - local_first_binding, | |
5687 | submaps + local_first_binding, | |
5688 | defs + local_first_binding, | |
4e50f26a | 5689 | submaps + local_first_binding) |
27203ead | 5690 | + local_first_binding); |
fbcd35bd JB |
5691 | |
5692 | /* If that click is bound, go for it. */ | |
5693 | if (first_binding < nmaps) | |
5694 | { | |
5695 | key = new_click; | |
5696 | break; | |
5697 | } | |
5698 | /* Otherwise, we'll leave key set to the drag event. */ | |
5699 | } | |
0a7f1fc0 JB |
5700 | } |
5701 | } | |
5702 | } | |
5703 | ||
284f4730 | 5704 | keybuf[t++] = key; |
7d6de002 RS |
5705 | /* Normally, last_nonmenu_event gets the previous key we read. |
5706 | But when a mouse popup menu is being used, | |
5707 | we don't update last_nonmenu_event; it continues to hold the mouse | |
5708 | event that preceded the first level of menu. */ | |
5709 | if (!used_mouse_menu) | |
5710 | last_nonmenu_event = key; | |
284f4730 JB |
5711 | |
5712 | /* If the sequence is unbound, see if we can hang a function key | |
253598e4 JB |
5713 | off the end of it. We only want to scan real keyboard input |
5714 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 5715 | re-reading old events, don't examine it. */ |
4e50f26a | 5716 | if (first_binding >= nmaps |
253598e4 | 5717 | && t >= mock_input) |
284f4730 JB |
5718 | { |
5719 | Lisp_Object fkey_next; | |
5720 | ||
e9bf89a0 RS |
5721 | /* Continue scan from fkey_end until we find a bound suffix. |
5722 | If we fail, increment fkey_start | |
5723 | and start fkey_end from there. */ | |
284f4730 JB |
5724 | while (fkey_end < t) |
5725 | { | |
f4255cd1 JB |
5726 | Lisp_Object key; |
5727 | ||
5728 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
5729 | /* Look up meta-characters by prefixing them |
5730 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 5731 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 5732 | { |
e74fbc70 RS |
5733 | fkey_next |
5734 | = get_keymap_1 | |
f4255cd1 | 5735 | (get_keyelt |
e74fbc70 | 5736 | (access_keymap (fkey_map, meta_prefix_char, 1, 0)), |
f4255cd1 | 5737 | 0, 1); |
bb9e9bed | 5738 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 5739 | } |
067ffa38 JB |
5740 | else |
5741 | fkey_next = fkey_map; | |
5742 | ||
e74fbc70 RS |
5743 | fkey_next |
5744 | = get_keyelt (access_keymap (fkey_next, key, 1, 0)); | |
067ffa38 | 5745 | |
7a80a6f6 RS |
5746 | #if 0 /* I didn't turn this on, because it might cause trouble |
5747 | for the mapping of return into C-m and tab into C-i. */ | |
5748 | /* Optionally don't map function keys into other things. | |
5749 | This enables the user to redefine kp- keys easily. */ | |
5750 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
5751 | fkey_next = Qnil; | |
5752 | #endif | |
5753 | ||
1abe6abe RS |
5754 | /* If the function key map gives a function, not an |
5755 | array, then call the function with no args and use | |
5756 | its value instead. */ | |
5757 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
5758 | && fkey_end == t) | |
5759 | { | |
5760 | struct gcpro gcpro1, gcpro2, gcpro3; | |
5761 | Lisp_Object tem; | |
5762 | tem = fkey_next; | |
5763 | ||
5764 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 5765 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
5766 | UNGCPRO; |
5767 | /* If the function returned something invalid, | |
5768 | barf--don't ignore it. | |
df0f2ba1 | 5769 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
5770 | other variables.) */ |
5771 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
5772 | error ("Function in function-key-map returns invalid key sequence"); | |
5773 | } | |
5774 | ||
e9bf89a0 RS |
5775 | function_key_possible = ! NILP (fkey_next); |
5776 | ||
85bc5181 | 5777 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 5778 | function key map and it's a suffix of the current |
85bc5181 | 5779 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 5780 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 5781 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
5782 | && fkey_end == t) |
5783 | { | |
2e864a76 | 5784 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
5785 | |
5786 | t = fkey_start + len; | |
284f4730 JB |
5787 | if (t >= bufsize) |
5788 | error ("key sequence too long"); | |
5789 | ||
f5ea6163 JB |
5790 | if (VECTORP (fkey_next)) |
5791 | bcopy (XVECTOR (fkey_next)->contents, | |
5792 | keybuf + fkey_start, | |
5793 | (t - fkey_start) * sizeof (keybuf[0])); | |
5794 | else if (STRINGP (fkey_next)) | |
5795 | { | |
5796 | int i; | |
5797 | ||
5798 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
5799 | XSETFASTINT (keybuf[fkey_start + i], |
5800 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 5801 | } |
df0f2ba1 | 5802 | |
284f4730 JB |
5803 | mock_input = t; |
5804 | fkey_start = fkey_end = t; | |
32e6d806 | 5805 | fkey_map = Vfunction_key_map; |
284f4730 | 5806 | |
00a78037 RS |
5807 | /* Do pass the results through key-translation-map. */ |
5808 | keytran_start = keytran_end = 0; | |
5809 | keytran_map = Vkey_translation_map; | |
5810 | ||
f4255cd1 | 5811 | goto replay_sequence; |
284f4730 | 5812 | } |
df0f2ba1 | 5813 | |
f4255cd1 | 5814 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 5815 | |
df0f2ba1 | 5816 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 5817 | fkey_start. */ |
284f4730 JB |
5818 | if (NILP (fkey_map)) |
5819 | { | |
5820 | fkey_end = ++fkey_start; | |
5821 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 5822 | function_key_possible = 0; |
284f4730 JB |
5823 | } |
5824 | } | |
5825 | } | |
a612e298 RS |
5826 | |
5827 | /* Look for this sequence in key-translation-map. */ | |
5828 | { | |
5829 | Lisp_Object keytran_next; | |
5830 | ||
5831 | /* Scan from keytran_end until we find a bound suffix. */ | |
5832 | while (keytran_end < t) | |
5833 | { | |
5834 | Lisp_Object key; | |
5835 | ||
5836 | key = keybuf[keytran_end++]; | |
5837 | /* Look up meta-characters by prefixing them | |
5838 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 5839 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
5840 | { |
5841 | keytran_next | |
5842 | = get_keymap_1 | |
5843 | (get_keyelt | |
5844 | (access_keymap (keytran_map, meta_prefix_char, 1, 0)), | |
5845 | 0, 1); | |
bb9e9bed | 5846 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
5847 | } |
5848 | else | |
5849 | keytran_next = keytran_map; | |
5850 | ||
5851 | keytran_next | |
5852 | = get_keyelt (access_keymap (keytran_next, key, 1, 0)); | |
5853 | ||
1abe6abe RS |
5854 | /* If the key translation map gives a function, not an |
5855 | array, then call the function with no args and use | |
5856 | its value instead. */ | |
5857 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
5858 | && keytran_end == t) | |
5859 | { | |
5860 | struct gcpro gcpro1, gcpro2, gcpro3; | |
5861 | Lisp_Object tem; | |
5862 | tem = keytran_next; | |
5863 | ||
40932d1a | 5864 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 5865 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
5866 | UNGCPRO; |
5867 | /* If the function returned something invalid, | |
5868 | barf--don't ignore it. | |
df0f2ba1 | 5869 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
5870 | other variables.) */ |
5871 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 5872 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
5873 | } |
5874 | ||
00a78037 RS |
5875 | key_translation_possible = ! NILP (keytran_next); |
5876 | ||
a612e298 | 5877 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 5878 | key translation map and it's a suffix of the current |
a612e298 RS |
5879 | sequence (i.e. keytran_end == t), replace it with |
5880 | the binding and restart with keytran_start at the end. */ | |
5881 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
5882 | && keytran_end == t) | |
5883 | { | |
2e864a76 | 5884 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
5885 | |
5886 | t = keytran_start + len; | |
5887 | if (t >= bufsize) | |
5888 | error ("key sequence too long"); | |
5889 | ||
5890 | if (VECTORP (keytran_next)) | |
5891 | bcopy (XVECTOR (keytran_next)->contents, | |
5892 | keybuf + keytran_start, | |
5893 | (t - keytran_start) * sizeof (keybuf[0])); | |
5894 | else if (STRINGP (keytran_next)) | |
5895 | { | |
5896 | int i; | |
5897 | ||
5898 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
5899 | XSETFASTINT (keybuf[keytran_start + i], |
5900 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
5901 | } |
5902 | ||
5903 | mock_input = t; | |
5904 | keytran_start = keytran_end = t; | |
5905 | keytran_map = Vkey_translation_map; | |
5906 | ||
00a78037 RS |
5907 | /* Don't pass the results of key-translation-map |
5908 | through function-key-map. */ | |
5909 | fkey_start = fkey_end = t; | |
5910 | fkey_map = Vkey_translation_map; | |
5911 | ||
a612e298 RS |
5912 | goto replay_sequence; |
5913 | } | |
5914 | ||
5915 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
5916 | ||
df0f2ba1 | 5917 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
5918 | keytran_start. */ |
5919 | if (NILP (keytran_map)) | |
5920 | { | |
5921 | keytran_end = ++keytran_start; | |
5922 | keytran_map = Vkey_translation_map; | |
00a78037 | 5923 | key_translation_possible = 0; |
a612e298 RS |
5924 | } |
5925 | } | |
5926 | } | |
4e50f26a RS |
5927 | |
5928 | /* If KEY is not defined in any of the keymaps, | |
5929 | and cannot be part of a function key or translation, | |
5930 | and is an upper case letter | |
5931 | use the corresponding lower-case letter instead. */ | |
5932 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 5933 | && ! key_translation_possible |
8c18cbfb | 5934 | && INTEGERP (key) |
4e50f26a RS |
5935 | && ((((XINT (key) & 0x3ffff) |
5936 | < XSTRING (current_buffer->downcase_table)->size) | |
5937 | && UPPERCASEP (XINT (key) & 0x3ffff)) | |
5938 | || (XINT (key) & shift_modifier))) | |
5939 | { | |
309b0fc8 RS |
5940 | original_uppercase = key; |
5941 | original_uppercase_position = t - 1; | |
5942 | ||
4e50f26a RS |
5943 | if (XINT (key) & shift_modifier) |
5944 | XSETINT (key, XINT (key) & ~shift_modifier); | |
5945 | else | |
5946 | XSETINT (key, (DOWNCASE (XINT (key) & 0x3ffff) | |
5947 | | (XINT (key) & ~0x3ffff))); | |
5948 | ||
5949 | keybuf[t - 1] = key; | |
5950 | mock_input = t; | |
5951 | goto replay_sequence; | |
5952 | } | |
ef8fd672 RS |
5953 | /* If KEY is not defined in any of the keymaps, |
5954 | and cannot be part of a function key or translation, | |
5955 | and is a shifted function key, | |
5956 | use the corresponding unshifted function key instead. */ | |
5957 | if (first_binding == nmaps && ! function_key_possible | |
5958 | && ! key_translation_possible | |
5959 | && SYMBOLP (key)) | |
5960 | { | |
5961 | Lisp_Object breakdown; | |
5962 | int modifiers; | |
5963 | ||
309b0fc8 RS |
5964 | original_uppercase = key; |
5965 | original_uppercase_position = t - 1; | |
5966 | ||
ef8fd672 RS |
5967 | breakdown = parse_modifiers (key); |
5968 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
5969 | if (modifiers & shift_modifier) | |
5970 | { | |
5971 | modifiers &= ~shift_modifier; | |
ec0faad2 | 5972 | key = apply_modifiers (modifiers, |
ef8fd672 RS |
5973 | XCONS (breakdown)->car); |
5974 | ||
5975 | keybuf[t - 1] = key; | |
5976 | mock_input = t; | |
5977 | goto replay_sequence; | |
5978 | } | |
5979 | } | |
284f4730 JB |
5980 | } |
5981 | ||
309b0fc8 | 5982 | if (!dummyflag) |
bc536d84 RS |
5983 | read_key_sequence_cmd = (first_binding < nmaps |
5984 | ? defs[first_binding] | |
5985 | : Qnil); | |
284f4730 | 5986 | |
cd21b839 | 5987 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 5988 | unbind_to (count, Qnil); |
07f76a14 | 5989 | |
309b0fc8 RS |
5990 | if (dont_downcase_last && t - 1 == original_uppercase_position) |
5991 | keybuf[t - 1] = original_uppercase; | |
5992 | ||
07f76a14 JB |
5993 | /* Occasionally we fabricate events, perhaps by expanding something |
5994 | according to function-key-map, or by adding a prefix symbol to a | |
5995 | mouse click in the scroll bar or modeline. In this cases, return | |
5996 | the entire generated key sequence, even if we hit an unbound | |
5997 | prefix or a definition before the end. This means that you will | |
5998 | be able to push back the event properly, and also means that | |
5999 | read-key-sequence will always return a logical unit. | |
6000 | ||
6001 | Better ideas? */ | |
cca310da JB |
6002 | for (; t < mock_input; t++) |
6003 | { | |
a98ea3f9 RS |
6004 | if (echo_keystrokes) |
6005 | echo_char (keybuf[t]); | |
cca310da JB |
6006 | add_command_key (keybuf[t]); |
6007 | } | |
07f76a14 | 6008 | |
284f4730 JB |
6009 | return t; |
6010 | } | |
6011 | ||
a612e298 RS |
6012 | #if 0 /* This doc string is too long for some compilers. |
6013 | This commented-out definition serves for DOC. */ | |
ce98e608 | 6014 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
6015 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
6016 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
6017 | current local and global maps.\n\ | |
6018 | \n\ | |
c0a58692 RS |
6019 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
6020 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
6021 | as a continuation of the previous key.\n\ | |
284f4730 | 6022 | \n\ |
309b0fc8 RS |
6023 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
6024 | convert the last event to lower case. (Normally any upper case event\n\ | |
6025 | is converted to lower case if the original event is undefined and the lower\n\ | |
6026 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
6027 | a key sequence to be defined.\n\ | |
6028 | \n\ | |
cb5df6ae JB |
6029 | A C-g typed while in this function is treated like any other character,\n\ |
6030 | and `quit-flag' is not set.\n\ | |
6031 | \n\ | |
6032 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
6033 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
6034 | of the selected window as normal.\n\ | |
ede41463 | 6035 | ""\n\ |
cb5df6ae JB |
6036 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
6037 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
6038 | or multi-click event is unbound, but the corresponding click event would\n\ |
6039 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 6040 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 6041 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
6042 | \n\ |
6043 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
6044 | lines separating windows, and scroll bars with imaginary keys\n\ |
6045 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 6046 | \n\ |
ce98e608 KH |
6047 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
6048 | function will process a switch-frame event if the user switches frames\n\ | |
6049 | before typing anything. If the user switches frames in the middle of a\n\ | |
6050 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
6051 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
6052 | \n\ |
6053 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
6054 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
4bb994d1 | 6055 | `function-key-map' for more details.") |
11e08aab | 6056 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
a612e298 RS |
6057 | #endif |
6058 | ||
ce98e608 | 6059 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
a612e298 | 6060 | 0) |
ce98e608 | 6061 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame) |
309b0fc8 | 6062 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
ce98e608 | 6063 | Lisp_Object can_return_switch_frame; |
284f4730 JB |
6064 | { |
6065 | Lisp_Object keybuf[30]; | |
6066 | register int i; | |
6067 | struct gcpro gcpro1, gcpro2; | |
6068 | ||
6069 | if (!NILP (prompt)) | |
6070 | CHECK_STRING (prompt, 0); | |
6071 | QUIT; | |
6072 | ||
6073 | bzero (keybuf, sizeof keybuf); | |
6074 | GCPRO1 (keybuf[0]); | |
6075 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
6076 | ||
daa37602 | 6077 | if (NILP (continue_echo)) |
c0a58692 RS |
6078 | this_command_key_count = 0; |
6079 | ||
309b0fc8 | 6080 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 KH |
6081 | prompt, ! NILP (dont_downcase_last), |
6082 | ! NILP (can_return_switch_frame)); | |
284f4730 | 6083 | |
dcc408a0 RS |
6084 | if (i == -1) |
6085 | { | |
6086 | Vquit_flag = Qt; | |
6087 | QUIT; | |
6088 | } | |
284f4730 | 6089 | UNGCPRO; |
86e5706b | 6090 | return make_event_array (i, keybuf); |
284f4730 JB |
6091 | } |
6092 | \f | |
6093 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 2, 0, | |
6094 | "Execute CMD as an editor command.\n\ | |
6095 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
6096 | Optional second arg RECORD-FLAG non-nil\n\ | |
6097 | means unconditionally put this command in `command-history'.\n\ | |
6098 | Otherwise, that is done only if an arg is read using the minibuffer.") | |
6099 | (cmd, record) | |
6100 | Lisp_Object cmd, record; | |
6101 | { | |
6102 | register Lisp_Object final; | |
6103 | register Lisp_Object tem; | |
6104 | Lisp_Object prefixarg; | |
6105 | struct backtrace backtrace; | |
6106 | extern int debug_on_next_call; | |
6107 | ||
d8bcf58e KH |
6108 | prefixarg = current_kboard->Vprefix_arg; |
6109 | current_kboard->Vprefix_arg = Qnil; | |
4c52b668 | 6110 | Vcurrent_prefix_arg = prefixarg; |
284f4730 JB |
6111 | debug_on_next_call = 0; |
6112 | ||
8c18cbfb | 6113 | if (SYMBOLP (cmd)) |
284f4730 JB |
6114 | { |
6115 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 6116 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
2e894dab | 6117 | return call1 (Vrun_hooks, Qdisabled_command_hook); |
284f4730 JB |
6118 | } |
6119 | ||
6120 | while (1) | |
6121 | { | |
ffd56f97 | 6122 | final = Findirect_function (cmd); |
284f4730 JB |
6123 | |
6124 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
6125 | do_autoload (final, cmd); | |
6126 | else | |
6127 | break; | |
6128 | } | |
6129 | ||
8c18cbfb | 6130 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
6131 | { |
6132 | /* If requested, place the macro in the command history. For | |
6133 | other sorts of commands, call-interactively takes care of | |
6134 | this. */ | |
6135 | if (!NILP (record)) | |
6136 | Vcommand_history | |
6137 | = Fcons (Fcons (Qexecute_kbd_macro, | |
6138 | Fcons (final, Fcons (prefixarg, Qnil))), | |
6139 | Vcommand_history); | |
6140 | ||
6141 | return Fexecute_kbd_macro (final, prefixarg); | |
6142 | } | |
8c18cbfb | 6143 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
6144 | { |
6145 | backtrace.next = backtrace_list; | |
6146 | backtrace_list = &backtrace; | |
6147 | backtrace.function = &Qcall_interactively; | |
6148 | backtrace.args = &cmd; | |
6149 | backtrace.nargs = 1; | |
6150 | backtrace.evalargs = 0; | |
6151 | ||
6152 | tem = Fcall_interactively (cmd, record); | |
6153 | ||
6154 | backtrace_list = backtrace.next; | |
6155 | return tem; | |
6156 | } | |
6157 | return Qnil; | |
6158 | } | |
6159 | \f | |
284f4730 JB |
6160 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
6161 | 1, 1, "P", | |
6162 | "Read function name, then read its arguments and call it.") | |
6163 | (prefixarg) | |
6164 | Lisp_Object prefixarg; | |
6165 | { | |
6166 | Lisp_Object function; | |
6167 | char buf[40]; | |
6168 | Lisp_Object saved_keys; | |
6169 | struct gcpro gcpro1; | |
6170 | ||
b0f2a7bf KH |
6171 | saved_keys = Fvector (this_command_key_count, |
6172 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
6173 | buf[0] = 0; |
6174 | GCPRO1 (saved_keys); | |
6175 | ||
6176 | if (EQ (prefixarg, Qminus)) | |
6177 | strcpy (buf, "- "); | |
6178 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
6179 | strcpy (buf, "C-u "); | |
8c18cbfb | 6180 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
6181 | { |
6182 | if (sizeof (int) == sizeof (EMACS_INT)) | |
6183 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
6184 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6185 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
6186 | else | |
6187 | abort (); | |
6188 | } | |
8c18cbfb | 6189 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
6190 | { |
6191 | if (sizeof (int) == sizeof (EMACS_INT)) | |
6192 | sprintf (buf, "%d ", XINT (prefixarg)); | |
6193 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6194 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
6195 | else | |
6196 | abort (); | |
6197 | } | |
284f4730 JB |
6198 | |
6199 | /* This isn't strictly correct if execute-extended-command | |
6200 | is bound to anything else. Perhaps it should use | |
6201 | this_command_keys? */ | |
6202 | strcat (buf, "M-x "); | |
6203 | ||
6204 | /* Prompt with buf, and then read a string, completing from and | |
6205 | restricting to the set of all defined commands. Don't provide | |
51763820 | 6206 | any initial input. Save the command read on the extended-command |
03b4122a | 6207 | history list. */ |
284f4730 JB |
6208 | function = Fcompleting_read (build_string (buf), |
6209 | Vobarray, Qcommandp, | |
03b4122a | 6210 | Qt, Qnil, Qextended_command_history); |
284f4730 | 6211 | |
1113d9db JB |
6212 | /* Set this_command_keys to the concatenation of saved_keys and |
6213 | function, followed by a RET. */ | |
284f4730 | 6214 | { |
1113d9db | 6215 | struct Lisp_String *str; |
b0f2a7bf | 6216 | Lisp_Object *keys; |
284f4730 JB |
6217 | int i; |
6218 | Lisp_Object tem; | |
6219 | ||
1113d9db JB |
6220 | this_command_key_count = 0; |
6221 | ||
b0f2a7bf KH |
6222 | keys = XVECTOR (saved_keys)->contents; |
6223 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
6224 | add_command_key (keys[i]); | |
1113d9db JB |
6225 | |
6226 | str = XSTRING (function); | |
6227 | for (i = 0; i < str->size; i++) | |
6228 | { | |
bb9e9bed | 6229 | XSETFASTINT (tem, str->data[i]); |
1113d9db JB |
6230 | add_command_key (tem); |
6231 | } | |
6232 | ||
bb9e9bed | 6233 | XSETFASTINT (tem, '\015'); |
1113d9db | 6234 | add_command_key (tem); |
284f4730 JB |
6235 | } |
6236 | ||
6237 | UNGCPRO; | |
6238 | ||
0a7f1fc0 | 6239 | function = Fintern (function, Qnil); |
d8bcf58e | 6240 | current_kboard->Vprefix_arg = prefixarg; |
284f4730 JB |
6241 | this_command = function; |
6242 | ||
6243 | return Fcommand_execute (function, Qt); | |
6244 | } | |
6245 | \f | |
6246 | ||
6247 | detect_input_pending () | |
6248 | { | |
6249 | if (!input_pending) | |
6250 | get_input_pending (&input_pending); | |
6251 | ||
6252 | return input_pending; | |
6253 | } | |
6254 | ||
ffd56f97 JB |
6255 | /* This is called in some cases before a possible quit. |
6256 | It cases the next call to detect_input_pending to recompute input_pending. | |
6257 | So calling this function unnecessarily can't do any harm. */ | |
6258 | clear_input_pending () | |
6259 | { | |
6260 | input_pending = 0; | |
6261 | } | |
6262 | ||
284f4730 JB |
6263 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
6264 | "T if command input is currently available with no waiting.\n\ | |
6265 | Actually, the value is nil only if we can be sure that no input is available.") | |
6266 | () | |
6267 | { | |
24597608 | 6268 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
6269 | return (Qt); |
6270 | ||
6271 | return detect_input_pending () ? Qt : Qnil; | |
6272 | } | |
6273 | ||
6274 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 6275 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
6276 | () |
6277 | { | |
5160df46 | 6278 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
6279 | Lisp_Object val; |
6280 | ||
6281 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 6282 | return Fvector (total_keys, keys); |
284f4730 JB |
6283 | else |
6284 | { | |
5160df46 JB |
6285 | val = Fvector (NUM_RECENT_KEYS, keys); |
6286 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
6287 | XVECTOR (val)->contents, |
6288 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 6289 | bcopy (keys, |
284f4730 JB |
6290 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
6291 | recent_keys_index * sizeof (Lisp_Object)); | |
6292 | return val; | |
6293 | } | |
6294 | } | |
6295 | ||
6296 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
6297 | "Return the key sequence that invoked this command.\n\ |
6298 | The value is a string or a vector.") | |
284f4730 JB |
6299 | () |
6300 | { | |
86e5706b RS |
6301 | return make_event_array (this_command_key_count, |
6302 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
6303 | } |
6304 | ||
71918b75 RS |
6305 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
6306 | Sreset_this_command_lengths, 0, 0, 0, | |
6307 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
6308 | \n\ | |
6309 | `universal-argument-other-key' rereads the event just typed.\n\ | |
6310 | It then gets translated through `function-key-map'.\n\ | |
6311 | The translated event gets included in the echo area and in\n\ | |
6312 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
6313 | That is not right.\n\ | |
6314 | \n\ | |
6315 | Calling this function directs the translated event to replace\n\ | |
6316 | the original event, so that only one version of the event actually\n\ | |
6317 | appears in the echo area and in the value of `this-command-keys.'.") | |
6318 | () | |
6319 | { | |
6320 | before_command_restore_flag = 1; | |
6321 | before_command_key_count_1 = before_command_key_count; | |
6322 | before_command_echo_length_1 = before_command_echo_length; | |
6323 | } | |
6324 | ||
284f4730 JB |
6325 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
6326 | "Return the current depth in recursive edits.") | |
6327 | () | |
6328 | { | |
6329 | Lisp_Object temp; | |
bb9e9bed | 6330 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
6331 | return temp; |
6332 | } | |
6333 | ||
6334 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
6335 | "FOpen dribble file: ", | |
9b2471df RS |
6336 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
6337 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
6338 | (file) |
6339 | Lisp_Object file; | |
6340 | { | |
6341 | if (NILP (file)) | |
6342 | { | |
d0011c11 RS |
6343 | if (dribble) |
6344 | { | |
6345 | fclose (dribble); | |
6346 | dribble = 0; | |
6347 | } | |
284f4730 JB |
6348 | } |
6349 | else | |
6350 | { | |
6351 | file = Fexpand_file_name (file, Qnil); | |
6352 | dribble = fopen (XSTRING (file)->data, "w"); | |
6353 | } | |
6354 | return Qnil; | |
6355 | } | |
6356 | ||
6357 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
6358 | "Discard the contents of the terminal input buffer.\n\ | |
6359 | Also cancel any kbd macro being defined.") | |
6360 | () | |
6361 | { | |
c5fdd383 | 6362 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
6363 | update_mode_lines++; |
6364 | ||
24597608 | 6365 | Vunread_command_events = Qnil; |
86e5706b | 6366 | unread_command_char = -1; |
284f4730 JB |
6367 | |
6368 | discard_tty_input (); | |
6369 | ||
ff0b5f4c JB |
6370 | /* Without the cast, GCC complains that this assignment loses the |
6371 | volatile qualifier of kbd_store_ptr. Is there anything wrong | |
6372 | with that? */ | |
beecf6a1 KH |
6373 | kbd_fetch_ptr = (struct input_event *) kbd_store_ptr; |
6374 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
284f4730 JB |
6375 | input_pending = 0; |
6376 | ||
6377 | return Qnil; | |
6378 | } | |
6379 | \f | |
6380 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
6381 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
6382 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
6383 | control, run a subshell instead.\n\n\ | |
284f4730 | 6384 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
6385 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
6386 | \n\ | |
bbdc2092 RS |
6387 | Before suspending, run the normal hook `suspend-hook'.\n\ |
6388 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
6389 | \n\ |
6390 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 6391 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
6392 | (stuffstring) |
6393 | Lisp_Object stuffstring; | |
6394 | { | |
3a69360c | 6395 | Lisp_Object tem; |
284f4730 JB |
6396 | int count = specpdl_ptr - specpdl; |
6397 | int old_height, old_width; | |
6398 | int width, height; | |
b7d2ebbf | 6399 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
6400 | extern init_sys_modes (); |
6401 | ||
6402 | if (!NILP (stuffstring)) | |
6403 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 6404 | |
1e95ed28 JB |
6405 | /* Run the functions in suspend-hook. */ |
6406 | if (!NILP (Vrun_hooks)) | |
6407 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 6408 | |
b7d2ebbf | 6409 | GCPRO1 (stuffstring); |
ff11dfa1 | 6410 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
6411 | reset_sys_modes (); |
6412 | /* sys_suspend can get an error if it tries to fork a subshell | |
6413 | and the system resources aren't available for that. */ | |
6414 | record_unwind_protect (init_sys_modes, 0); | |
6415 | stuff_buffered_input (stuffstring); | |
8026024c KH |
6416 | if (cannot_suspend) |
6417 | sys_subshell (); | |
6418 | else | |
6419 | sys_suspend (); | |
284f4730 JB |
6420 | unbind_to (count, Qnil); |
6421 | ||
6422 | /* Check if terminal/window size has changed. | |
6423 | Note that this is not useful when we are running directly | |
6424 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 6425 | get_frame_size (&width, &height); |
284f4730 | 6426 | if (width != old_width || height != old_height) |
f5ea6163 | 6427 | change_frame_size (selected_frame, height, width, 0, 0); |
284f4730 | 6428 | |
1e95ed28 | 6429 | /* Run suspend-resume-hook. */ |
284f4730 JB |
6430 | if (!NILP (Vrun_hooks)) |
6431 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 6432 | |
284f4730 JB |
6433 | UNGCPRO; |
6434 | return Qnil; | |
6435 | } | |
6436 | ||
6437 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 6438 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 JB |
6439 | |
6440 | stuff_buffered_input (stuffstring) | |
6441 | Lisp_Object stuffstring; | |
6442 | { | |
284f4730 JB |
6443 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6444 | #ifdef BSD | |
6445 | #ifndef BSD4_1 | |
612b78ef | 6446 | register unsigned char *p; |
612b78ef | 6447 | |
8c18cbfb | 6448 | if (STRINGP (stuffstring)) |
284f4730 JB |
6449 | { |
6450 | register int count; | |
6451 | ||
6452 | p = XSTRING (stuffstring)->data; | |
6453 | count = XSTRING (stuffstring)->size; | |
6454 | while (count-- > 0) | |
6455 | stuff_char (*p++); | |
6456 | stuff_char ('\n'); | |
6457 | } | |
6458 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 6459 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 6460 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 6461 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 6462 | { |
beecf6a1 KH |
6463 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
6464 | kbd_fetch_ptr = kbd_buffer; | |
6465 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
6466 | stuff_char (kbd_fetch_ptr->code); | |
6467 | kbd_fetch_ptr->kind = no_event; | |
6468 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
6469 | - kbd_buffer] | |
7b4aedb9 | 6470 | = Qnil); |
284f4730 JB |
6471 | } |
6472 | input_pending = 0; | |
6473 | #endif | |
6474 | #endif /* BSD and not BSD4_1 */ | |
6475 | } | |
6476 | \f | |
ffd56f97 JB |
6477 | set_waiting_for_input (time_to_clear) |
6478 | EMACS_TIME *time_to_clear; | |
284f4730 | 6479 | { |
ffd56f97 | 6480 | input_available_clear_time = time_to_clear; |
284f4730 JB |
6481 | |
6482 | /* Tell interrupt_signal to throw back to read_char, */ | |
6483 | waiting_for_input = 1; | |
6484 | ||
6485 | /* If interrupt_signal was called before and buffered a C-g, | |
6486 | make it run again now, to avoid timing error. */ | |
6487 | if (!NILP (Vquit_flag)) | |
6488 | quit_throw_to_read_char (); | |
284f4730 JB |
6489 | } |
6490 | ||
6491 | clear_waiting_for_input () | |
6492 | { | |
6493 | /* Tell interrupt_signal not to throw back to read_char, */ | |
6494 | waiting_for_input = 0; | |
ffd56f97 | 6495 | input_available_clear_time = 0; |
284f4730 JB |
6496 | } |
6497 | ||
6498 | /* This routine is called at interrupt level in response to C-G. | |
6499 | If interrupt_input, this is the handler for SIGINT. | |
6500 | Otherwise, it is called from kbd_buffer_store_event, | |
6501 | in handling SIGIO or SIGTINT. | |
6502 | ||
6503 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
6504 | immediately throw back to read_char. | |
6505 | ||
6506 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
6507 | This causes eval to throw, when it gets a chance. | |
6508 | If quit-flag is already non-nil, it stops the job right away. */ | |
6509 | ||
6510 | SIGTYPE | |
91c049d4 RS |
6511 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
6512 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
6513 | { |
6514 | char c; | |
6515 | /* Must preserve main program's value of errno. */ | |
6516 | int old_errno = errno; | |
284f4730 JB |
6517 | |
6518 | #ifdef USG | |
7a80a6f6 RS |
6519 | if (!read_socket_hook && NILP (Vwindow_system)) |
6520 | { | |
6521 | /* USG systems forget handlers when they are used; | |
6522 | must reestablish each time */ | |
6523 | signal (SIGINT, interrupt_signal); | |
6524 | signal (SIGQUIT, interrupt_signal); | |
6525 | } | |
284f4730 JB |
6526 | #endif /* USG */ |
6527 | ||
6528 | cancel_echoing (); | |
6529 | ||
d5045cf9 | 6530 | if (!NILP (Vquit_flag) && FRAME_TERMCAP_P (selected_frame)) |
284f4730 JB |
6531 | { |
6532 | fflush (stdout); | |
6533 | reset_sys_modes (); | |
6534 | sigfree (); | |
6535 | #ifdef SIGTSTP /* Support possible in later USG versions */ | |
6536 | /* | |
6537 | * On systems which can suspend the current process and return to the original | |
6538 | * shell, this command causes the user to end up back at the shell. | |
6539 | * The "Auto-save" and "Abort" questions are not asked until | |
6540 | * the user elects to return to emacs, at which point he can save the current | |
6541 | * job and either dump core or continue. | |
6542 | */ | |
6543 | sys_suspend (); | |
6544 | #else | |
6545 | #ifdef VMS | |
6546 | if (sys_suspend () == -1) | |
6547 | { | |
6548 | printf ("Not running as a subprocess;\n"); | |
6549 | printf ("you can continue or abort.\n"); | |
6550 | } | |
6551 | #else /* not VMS */ | |
6552 | /* Perhaps should really fork an inferior shell? | |
6553 | But that would not provide any way to get back | |
6554 | to the original shell, ever. */ | |
6555 | printf ("No support for stopping a process on this operating system;\n"); | |
6556 | printf ("you can continue or abort.\n"); | |
6557 | #endif /* not VMS */ | |
6558 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
6559 | #ifdef MSDOS |
6560 | /* We must remain inside the screen area when the internal terminal | |
6561 | is used. Note that [Enter] is not echoed by dos. */ | |
6562 | cursor_to (0, 0); | |
6563 | #endif | |
284f4730 JB |
6564 | printf ("Auto-save? (y or n) "); |
6565 | fflush (stdout); | |
6566 | if (((c = getchar ()) & ~040) == 'Y') | |
9fd7d808 RS |
6567 | { |
6568 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 RS |
6569 | #ifdef MSDOS |
6570 | printf ("\r\nAuto-save done"); | |
6571 | #else /* not MSDOS */ | |
9fd7d808 | 6572 | printf ("Auto-save done\n"); |
80e4aa30 | 6573 | #endif /* not MSDOS */ |
9fd7d808 | 6574 | } |
284f4730 | 6575 | while (c != '\n') c = getchar (); |
80e4aa30 RS |
6576 | #ifdef MSDOS |
6577 | printf ("\r\nAbort? (y or n) "); | |
6578 | #else /* not MSDOS */ | |
284f4730 JB |
6579 | #ifdef VMS |
6580 | printf ("Abort (and enter debugger)? (y or n) "); | |
6581 | #else /* not VMS */ | |
6582 | printf ("Abort (and dump core)? (y or n) "); | |
6583 | #endif /* not VMS */ | |
80e4aa30 | 6584 | #endif /* not MSDOS */ |
284f4730 JB |
6585 | fflush (stdout); |
6586 | if (((c = getchar ()) & ~040) == 'Y') | |
6587 | abort (); | |
6588 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
6589 | #ifdef MSDOS |
6590 | printf ("\r\nContinuing...\r\n"); | |
6591 | #else /* not MSDOS */ | |
284f4730 | 6592 | printf ("Continuing...\n"); |
80e4aa30 | 6593 | #endif /* not MSDOS */ |
284f4730 JB |
6594 | fflush (stdout); |
6595 | init_sys_modes (); | |
6596 | } | |
6597 | else | |
6598 | { | |
6599 | /* If executing a function that wants to be interrupted out of | |
6600 | and the user has not deferred quitting by binding `inhibit-quit' | |
6601 | then quit right away. */ | |
6602 | if (immediate_quit && NILP (Vinhibit_quit)) | |
6603 | { | |
6604 | immediate_quit = 0; | |
6605 | sigfree (); | |
6606 | Fsignal (Qquit, Qnil); | |
6607 | } | |
6608 | else | |
6609 | /* Else request quit when it's safe */ | |
6610 | Vquit_flag = Qt; | |
6611 | } | |
6612 | ||
6613 | if (waiting_for_input && !echoing) | |
6614 | quit_throw_to_read_char (); | |
6615 | ||
6616 | errno = old_errno; | |
6617 | } | |
6618 | ||
6619 | /* Handle a C-g by making read_char return C-g. */ | |
6620 | ||
6621 | quit_throw_to_read_char () | |
6622 | { | |
6623 | quit_error_check (); | |
6624 | sigfree (); | |
6625 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 6626 | clear_waiting_for_input (); |
284f4730 JB |
6627 | input_pending = 0; |
6628 | ||
24597608 | 6629 | Vunread_command_events = Qnil; |
86e5706b | 6630 | unread_command_char = -1; |
284f4730 | 6631 | |
087feab3 RS |
6632 | #if 0 /* Currently, sit_for is called from read_char without turning |
6633 | off polling. And that can call set_waiting_for_input. | |
6634 | It seems to be harmless. */ | |
e6b01c14 JB |
6635 | #ifdef POLL_FOR_INPUT |
6636 | /* May be > 1 if in recursive minibuffer. */ | |
6637 | if (poll_suppress_count == 0) | |
6638 | abort (); | |
6639 | #endif | |
087feab3 | 6640 | #endif |
0dfcc832 | 6641 | #ifdef MULTI_FRAME |
4c52b668 KH |
6642 | if (FRAMEP (internal_last_event_frame) |
6643 | && XFRAME (internal_last_event_frame) != selected_frame) | |
719191cf RS |
6644 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
6645 | Qnil, 0); | |
0dfcc832 | 6646 | #endif |
e6b01c14 | 6647 | |
284f4730 JB |
6648 | _longjmp (getcjmp, 1); |
6649 | } | |
6650 | \f | |
6651 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
6652 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
6653 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
6654 | nil means use CBREAK mode.\n\ | |
6655 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 6656 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
6657 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
6658 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
6659 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
6660 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
6661 | See also `current-input-mode'.") | |
284f4730 JB |
6662 | (interrupt, flow, meta, quit) |
6663 | Lisp_Object interrupt, flow, meta, quit; | |
6664 | { | |
6665 | if (!NILP (quit) | |
8c18cbfb | 6666 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
6667 | error ("set-input-mode: QUIT must be an ASCII character"); |
6668 | ||
6669 | #ifdef POLL_FOR_INPUT | |
6670 | stop_polling (); | |
6671 | #endif | |
284f4730 JB |
6672 | |
6673 | reset_sys_modes (); | |
6674 | #ifdef SIGIO | |
6675 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 6676 | if (read_socket_hook) |
9a0f60bb KH |
6677 | { |
6678 | /* When using X, don't give the user a real choice, | |
6679 | because we haven't implemented the mechanisms to support it. */ | |
6680 | #ifdef NO_SOCK_SIGIO | |
6681 | interrupt_input = 0; | |
6682 | #else /* not NO_SOCK_SIGIO */ | |
6683 | interrupt_input = 1; | |
284f4730 | 6684 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
6685 | } |
6686 | else | |
284f4730 JB |
6687 | interrupt_input = !NILP (interrupt); |
6688 | #else /* not SIGIO */ | |
6689 | interrupt_input = 0; | |
6690 | #endif /* not SIGIO */ | |
9a0f60bb | 6691 | |
284f4730 JB |
6692 | /* Our VMS input only works by interrupts, as of now. */ |
6693 | #ifdef VMS | |
6694 | interrupt_input = 1; | |
6695 | #endif | |
9a0f60bb | 6696 | |
284f4730 | 6697 | flow_control = !NILP (flow); |
b04904fb RS |
6698 | if (NILP (meta)) |
6699 | meta_key = 0; | |
6700 | else if (EQ (meta, Qt)) | |
6701 | meta_key = 1; | |
6702 | else | |
6703 | meta_key = 2; | |
284f4730 JB |
6704 | if (!NILP (quit)) |
6705 | /* Don't let this value be out of range. */ | |
6706 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
6707 | ||
6708 | init_sys_modes (); | |
34f04431 RS |
6709 | |
6710 | #ifdef POLL_FOR_INPUT | |
6711 | poll_suppress_count = 1; | |
6712 | start_polling (); | |
6713 | #endif | |
284f4730 JB |
6714 | return Qnil; |
6715 | } | |
80645119 JB |
6716 | |
6717 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
6718 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
6719 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
6720 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
6721 | nil, Emacs is using CBREAK mode.\n\ | |
6722 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
6723 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
6724 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
6725 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
6726 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
6727 | all 8 bits as the character code.\n\ | |
80645119 JB |
6728 | QUIT is the character Emacs currently uses to quit.\n\ |
6729 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 6730 | `set-input-mode'.") |
80645119 JB |
6731 | () |
6732 | { | |
6733 | Lisp_Object val[4]; | |
6734 | ||
6735 | val[0] = interrupt_input ? Qt : Qnil; | |
6736 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 6737 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 6738 | XSETFASTINT (val[3], quit_char); |
80645119 | 6739 | |
bf673a7a | 6740 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
6741 | } |
6742 | ||
284f4730 | 6743 | \f |
6c6083a9 | 6744 | /* |
c5fdd383 | 6745 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
6746 | */ |
6747 | void | |
c5fdd383 KH |
6748 | init_kboard (kb) |
6749 | KBOARD *kb; | |
6c6083a9 | 6750 | { |
217258d5 | 6751 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 6752 | kb->Vlast_command = Qnil; |
d8bcf58e | 6753 | kb->Vprefix_arg = Qnil; |
c5fdd383 KH |
6754 | kb->kbd_queue = Qnil; |
6755 | kb->kbd_queue_has_data = 0; | |
6756 | kb->immediate_echo = 0; | |
6757 | kb->echoptr = kb->echobuf; | |
6758 | kb->echo_after_prompt = -1; | |
6759 | kb->kbd_macro_buffer = 0; | |
6760 | kb->kbd_macro_bufsize = 0; | |
6761 | kb->defining_kbd_macro = Qnil; | |
6762 | kb->Vlast_kbd_macro = Qnil; | |
6763 | kb->reference_count = 0; | |
7c97ffdc | 6764 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 6765 | kb->system_key_syms = Qnil; |
9ba47203 | 6766 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
6767 | } |
6768 | ||
6769 | /* | |
c5fdd383 | 6770 | * Destroy the contents of a kboard object, but not the object itself. |
6c6083a9 KH |
6771 | * We use this just before deleteing it, or if we're going to initialize |
6772 | * it a second time. | |
6773 | */ | |
e50b8090 | 6774 | static void |
c5fdd383 KH |
6775 | wipe_kboard (kb) |
6776 | KBOARD *kb; | |
6c6083a9 | 6777 | { |
c5fdd383 KH |
6778 | if (kb->kbd_macro_buffer) |
6779 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
6780 | } |
6781 | ||
e50b8090 KH |
6782 | #ifdef MULTI_KBOARD |
6783 | void | |
6784 | delete_kboard (kb) | |
6785 | KBOARD *kb; | |
6786 | { | |
6787 | KBOARD **kbp; | |
6788 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
6789 | if (*kbp == NULL) | |
6790 | abort (); | |
6791 | *kbp = kb->next_kboard; | |
6792 | wipe_kboard (kb); | |
6793 | xfree (kb); | |
6794 | } | |
6795 | #endif | |
6796 | ||
284f4730 JB |
6797 | init_keyboard () |
6798 | { | |
284f4730 JB |
6799 | /* This is correct before outermost invocation of the editor loop */ |
6800 | command_loop_level = -1; | |
6801 | immediate_quit = 0; | |
6802 | quit_char = Ctl ('g'); | |
24597608 | 6803 | Vunread_command_events = Qnil; |
86e5706b | 6804 | unread_command_char = -1; |
284f4730 | 6805 | total_keys = 0; |
9deb415a | 6806 | recent_keys_index = 0; |
beecf6a1 KH |
6807 | kbd_fetch_ptr = kbd_buffer; |
6808 | kbd_store_ptr = kbd_buffer; | |
6809 | kbd_buffer_frame_or_window | |
6810 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 6811 | #ifdef HAVE_MOUSE |
a9d77f1f | 6812 | do_mouse_tracking = Qnil; |
2eb6bfbe | 6813 | #endif |
284f4730 JB |
6814 | input_pending = 0; |
6815 | ||
4c52b668 KH |
6816 | #ifdef MULTI_FRAME |
6817 | /* This means that command_loop_1 won't try to select anything the first | |
6818 | time through. */ | |
6819 | internal_last_event_frame = Qnil; | |
6820 | Vlast_event_frame = internal_last_event_frame; | |
6821 | #endif | |
6822 | ||
c5fdd383 | 6823 | #ifdef MULTI_KBOARD |
aaca43a1 | 6824 | current_kboard = initial_kboard; |
6c6083a9 | 6825 | #endif |
aaca43a1 | 6826 | wipe_kboard (current_kboard); |
c5fdd383 | 6827 | init_kboard (current_kboard); |
07d2b8de | 6828 | |
beecf6a1 KH |
6829 | if (initialized) |
6830 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
6831 | ||
6832 | kbd_buffer_frame_or_window | |
6833 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 6834 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
6835 | { |
6836 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 6837 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
6838 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
6839 | SIGQUIT and we can't tell which one it will give us. */ | |
6840 | signal (SIGQUIT, interrupt_signal); | |
6841 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 6842 | } |
284f4730 JB |
6843 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
6844 | #ifdef SIGIO | |
7a80a6f6 RS |
6845 | if (!noninteractive) |
6846 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 6847 | #endif /* SIGIO */ |
284f4730 JB |
6848 | |
6849 | /* Use interrupt input by default, if it works and noninterrupt input | |
6850 | has deficiencies. */ | |
6851 | ||
6852 | #ifdef INTERRUPT_INPUT | |
6853 | interrupt_input = 1; | |
6854 | #else | |
6855 | interrupt_input = 0; | |
6856 | #endif | |
6857 | ||
6858 | /* Our VMS input only works by interrupts, as of now. */ | |
6859 | #ifdef VMS | |
6860 | interrupt_input = 1; | |
6861 | #endif | |
6862 | ||
6863 | sigfree (); | |
6864 | dribble = 0; | |
6865 | ||
6866 | if (keyboard_init_hook) | |
6867 | (*keyboard_init_hook) (); | |
6868 | ||
6869 | #ifdef POLL_FOR_INPUT | |
6870 | poll_suppress_count = 1; | |
6871 | start_polling (); | |
6872 | #endif | |
6873 | } | |
6874 | ||
df0f2ba1 | 6875 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
6876 | event header symbols and put properties on them. */ |
6877 | struct event_head { | |
6878 | Lisp_Object *var; | |
6879 | char *name; | |
6880 | Lisp_Object *kind; | |
6881 | }; | |
6882 | ||
6883 | struct event_head head_table[] = { | |
7b4aedb9 | 6884 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 6885 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 6886 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 6887 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
6888 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
6889 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
6890 | }; |
6891 | ||
6892 | syms_of_keyboard () | |
6893 | { | |
2e894dab RS |
6894 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
6895 | staticpro (&Qdisabled_command_hook); | |
6896 | ||
284f4730 JB |
6897 | Qself_insert_command = intern ("self-insert-command"); |
6898 | staticpro (&Qself_insert_command); | |
6899 | ||
6900 | Qforward_char = intern ("forward-char"); | |
6901 | staticpro (&Qforward_char); | |
6902 | ||
6903 | Qbackward_char = intern ("backward-char"); | |
6904 | staticpro (&Qbackward_char); | |
6905 | ||
6906 | Qdisabled = intern ("disabled"); | |
6907 | staticpro (&Qdisabled); | |
6908 | ||
e58aa385 RS |
6909 | Qundefined = intern ("undefined"); |
6910 | staticpro (&Qundefined); | |
6911 | ||
86e5706b RS |
6912 | Qpre_command_hook = intern ("pre-command-hook"); |
6913 | staticpro (&Qpre_command_hook); | |
6914 | ||
6915 | Qpost_command_hook = intern ("post-command-hook"); | |
6916 | staticpro (&Qpost_command_hook); | |
6917 | ||
3ef14e46 RS |
6918 | Qdeferred_action_function = intern ("deferred-action-function"); |
6919 | staticpro (&Qdeferred_action_function); | |
6920 | ||
40932d1a RS |
6921 | Qcommand_hook_internal = intern ("command-hook-internal"); |
6922 | staticpro (&Qcommand_hook_internal); | |
6923 | ||
284f4730 JB |
6924 | Qfunction_key = intern ("function-key"); |
6925 | staticpro (&Qfunction_key); | |
13b5e56c | 6926 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 6927 | staticpro (&Qmouse_click); |
284f4730 | 6928 | |
598a9fa7 JB |
6929 | Qmenu_enable = intern ("menu-enable"); |
6930 | staticpro (&Qmenu_enable); | |
6931 | ||
284f4730 JB |
6932 | Qmode_line = intern ("mode-line"); |
6933 | staticpro (&Qmode_line); | |
e5d77022 JB |
6934 | Qvertical_line = intern ("vertical-line"); |
6935 | staticpro (&Qvertical_line); | |
3c370943 JB |
6936 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
6937 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
6938 | Qmenu_bar = intern ("menu-bar"); |
6939 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
6940 | |
6941 | Qabove_handle = intern ("above-handle"); | |
6942 | staticpro (&Qabove_handle); | |
6943 | Qhandle = intern ("handle"); | |
6944 | staticpro (&Qhandle); | |
6945 | Qbelow_handle = intern ("below-handle"); | |
6946 | staticpro (&Qbelow_handle); | |
284f4730 | 6947 | |
cd21b839 | 6948 | Qevent_kind = intern ("event-kind"); |
284f4730 | 6949 | staticpro (&Qevent_kind); |
88cb0656 JB |
6950 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
6951 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
6952 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
6953 | staticpro (&Qevent_symbol_element_mask); | |
6954 | Qmodifier_cache = intern ("modifier-cache"); | |
6955 | staticpro (&Qmodifier_cache); | |
284f4730 | 6956 | |
48e416d4 RS |
6957 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
6958 | staticpro (&Qrecompute_lucid_menubar); | |
6959 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
6960 | staticpro (&Qactivate_menubar_hook); | |
6961 | ||
f4eef8b4 RS |
6962 | Qpolling_period = intern ("polling-period"); |
6963 | staticpro (&Qpolling_period); | |
6964 | ||
284f4730 JB |
6965 | { |
6966 | struct event_head *p; | |
6967 | ||
6968 | for (p = head_table; | |
6969 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
6970 | p++) | |
6971 | { | |
6972 | *p->var = intern (p->name); | |
6973 | staticpro (p->var); | |
6974 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 6975 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
6976 | } |
6977 | } | |
6978 | ||
7b4aedb9 JB |
6979 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
6980 | staticpro (&button_down_location); | |
88cb0656 JB |
6981 | |
6982 | { | |
6983 | int i; | |
6984 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
6985 | ||
6986 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
6987 | for (i = 0; i < len; i++) | |
86e5706b RS |
6988 | if (modifier_names[i]) |
6989 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
6990 | staticpro (&modifier_symbols); |
6991 | } | |
6992 | ||
9deb415a JB |
6993 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
6994 | staticpro (&recent_keys); | |
6995 | ||
6569cc8d | 6996 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 6997 | staticpro (&this_command_keys); |
6569cc8d | 6998 | |
03b4122a BF |
6999 | Qextended_command_history = intern ("extended-command-history"); |
7000 | Fset (Qextended_command_history, Qnil); | |
7001 | staticpro (&Qextended_command_history); | |
7002 | ||
beecf6a1 KH |
7003 | kbd_buffer_frame_or_window |
7004 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7005 | staticpro (&kbd_buffer_frame_or_window); | |
7006 | ||
24597608 RS |
7007 | accent_key_syms = Qnil; |
7008 | staticpro (&accent_key_syms); | |
7009 | ||
284f4730 JB |
7010 | func_key_syms = Qnil; |
7011 | staticpro (&func_key_syms); | |
7012 | ||
7013 | mouse_syms = Qnil; | |
7014 | staticpro (&mouse_syms); | |
7015 | ||
cd21b839 JB |
7016 | unread_switch_frame = Qnil; |
7017 | staticpro (&unread_switch_frame); | |
7018 | ||
a1706c30 | 7019 | defsubr (&Sevent_convert_list); |
284f4730 JB |
7020 | defsubr (&Sread_key_sequence); |
7021 | defsubr (&Srecursive_edit); | |
2eb6bfbe | 7022 | #ifdef HAVE_MOUSE |
284f4730 | 7023 | defsubr (&Strack_mouse); |
2eb6bfbe | 7024 | #endif |
284f4730 JB |
7025 | defsubr (&Sinput_pending_p); |
7026 | defsubr (&Scommand_execute); | |
7027 | defsubr (&Srecent_keys); | |
7028 | defsubr (&Sthis_command_keys); | |
71918b75 | 7029 | defsubr (&Sreset_this_command_lengths); |
284f4730 JB |
7030 | defsubr (&Ssuspend_emacs); |
7031 | defsubr (&Sabort_recursive_edit); | |
7032 | defsubr (&Sexit_recursive_edit); | |
7033 | defsubr (&Srecursion_depth); | |
7034 | defsubr (&Stop_level); | |
7035 | defsubr (&Sdiscard_input); | |
7036 | defsubr (&Sopen_dribble_file); | |
7037 | defsubr (&Sset_input_mode); | |
80645119 | 7038 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
7039 | defsubr (&Sexecute_extended_command); |
7040 | ||
284f4730 | 7041 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
7042 | "Last input event that was part of a command."); |
7043 | ||
186cf719 | 7044 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 7045 | "Last input event that was part of a command."); |
284f4730 | 7046 | |
7d6de002 | 7047 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 7048 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
7049 | Mouse menus give back keys that don't look like mouse events;\n\ |
7050 | this variable holds the actual mouse event that led to the menu,\n\ | |
7051 | so that you can determine whether the command was run by mouse or not."); | |
7052 | ||
284f4730 | 7053 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
7054 | "Last input event."); |
7055 | ||
186cf719 | 7056 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 7057 | "Last input event."); |
284f4730 | 7058 | |
24597608 | 7059 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
1c07d0a6 | 7060 | "List of objects to be read as next command input events."); |
284f4730 | 7061 | |
86e5706b RS |
7062 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
7063 | "If not -1, an object to be read as next command input event."); | |
7064 | ||
284f4730 JB |
7065 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
7066 | "Meta-prefix character code. Meta-foo as command input\n\ | |
7067 | turns into this character followed by foo."); | |
18cd2eeb | 7068 | XSETINT (meta_prefix_char, 033); |
284f4730 | 7069 | |
6c7178b9 | 7070 | DEFVAR_KBOARD ("last-command", Vlast_command, |
284f4730 JB |
7071 | "The last command executed. Normally a symbol with a function definition,\n\ |
7072 | but can be whatever was found in the keymap, or whatever the variable\n\ | |
18f29056 RS |
7073 | `this-command' was set to by that command.\n\ |
7074 | \n\ | |
7075 | The value `mode-exit' is special; it means that the previous command\n\ | |
7076 | read an event that told it to exit, and it did so and unread that event.\n\ | |
7077 | In other words, the present command is the event that made the previous\n\ | |
7078 | command exit.\n\ | |
7079 | \n\ | |
7080 | The value `kill-region' is special; it means that the previous command\n\ | |
7081 | was a kill command."); | |
284f4730 JB |
7082 | |
7083 | DEFVAR_LISP ("this-command", &this_command, | |
7084 | "The command now being executed.\n\ | |
7085 | The command can set this variable; whatever is put here\n\ | |
7086 | will be in `last-command' during the following command."); | |
7087 | this_command = Qnil; | |
7088 | ||
7089 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
7090 | "*Number of keyboard input characters between auto-saves.\n\ | |
7091 | Zero means disable autosaving due to number of characters typed."); | |
7092 | auto_save_interval = 300; | |
7093 | ||
7094 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
7095 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
7096 | Zero or nil means disable auto-saving due to idleness.\n\ |
7097 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 7098 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 7099 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
7100 | |
7101 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
7102 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
7103 | echo_keystrokes = 1; | |
7104 | ||
7105 | DEFVAR_INT ("polling-period", &polling_period, | |
7106 | "*Interval between polling for input during Lisp execution.\n\ | |
7107 | The reason for polling is to make C-g work to stop a running program.\n\ | |
7108 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
7109 | Polling is automatically disabled in all other cases."); | |
7110 | polling_period = 2; | |
df0f2ba1 | 7111 | |
564dc952 | 7112 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 7113 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
7114 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
7115 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 7116 | by position only."); |
aab06933 | 7117 | Vdouble_click_time = make_number (500); |
fbcd35bd | 7118 | |
03361bcc RS |
7119 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
7120 | "*Non-nil means inhibit local map menu bar menus."); | |
7121 | inhibit_local_menu_bar_menus = 0; | |
7122 | ||
284f4730 | 7123 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
e0dff5f6 | 7124 | "Number of complete keys read from the keyboard so far."); |
284f4730 JB |
7125 | num_input_keys = 0; |
7126 | ||
4c52b668 KH |
7127 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
7128 | "The frame in which the most recently read event occurred.\n\ | |
7129 | If the last event came from a keyboard macro, this is set to `macro'."); | |
7130 | Vlast_event_frame = Qnil; | |
7131 | ||
7e85b935 | 7132 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
7133 | "Character to recognize as meaning Help.\n\ |
7134 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
7135 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 7136 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 7137 | |
ecb7cb34 KH |
7138 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
7139 | "List of input events to recognize as meaning Help.\n\ | |
7140 | These work just like the value of `help-char' (see that)."); | |
7141 | Vhelp_event_list = Qnil; | |
7142 | ||
284f4730 | 7143 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 7144 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
7145 | If the form returns a string, that string is displayed.\n\ |
7146 | If `help-form' is nil, the help char is not recognized."); | |
7147 | Vhelp_form = Qnil; | |
7148 | ||
7e85b935 RS |
7149 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
7150 | "Command to run when `help-char' character follows a prefix key.\n\ | |
7151 | This command is used only when there is no actual binding\n\ | |
7152 | for that character after that prefix key."); | |
7153 | Vprefix_help_command = Qnil; | |
7154 | ||
284f4730 JB |
7155 | DEFVAR_LISP ("top-level", &Vtop_level, |
7156 | "Form to evaluate when Emacs starts up.\n\ | |
7157 | Useful to set before you dump a modified Emacs."); | |
7158 | Vtop_level = Qnil; | |
7159 | ||
7160 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
7161 | "String used as translate table for keyboard input, or nil.\n\ | |
7162 | Each character is looked up in this string and the contents used instead.\n\ | |
7163 | If string is of length N, character codes N and up are untranslated."); | |
7164 | Vkeyboard_translate_table = Qnil; | |
7165 | ||
a612e298 RS |
7166 | DEFVAR_LISP ("key-translation-map", &Vkey_translation_map, |
7167 | "Keymap of key translations that can override keymaps.\n\ | |
7168 | This keymap works like `function-key-map', but comes after that,\n\ | |
7169 | and applies even for keys that have ordinary bindings."); | |
7170 | Vkey_translation_map = Qnil; | |
7171 | ||
8026024c KH |
7172 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
7173 | "Non-nil means to always spawn a subshell instead of suspending,\n\ | |
7174 | even if the operating system has support for stopping a process."); | |
7175 | cannot_suspend = 0; | |
7176 | ||
284f4730 | 7177 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 7178 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 7179 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
7180 | for elements that have prompt strings.\n\ |
7181 | The menu is displayed on the screen\n\ | |
7182 | if X menus were enabled at configuration\n\ | |
7183 | time and the previous event was a mouse click prefix key.\n\ | |
7184 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
7185 | menu_prompting = 1; |
7186 | ||
7187 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
7188 | "Character to see next line of menu prompt.\n\ | |
7189 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 7190 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
7191 | |
7192 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
7193 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
7194 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
7195 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 7196 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
7197 | all input characters will have the control modifier applied to them.\n\ |
7198 | \n\ | |
9d9f56dd | 7199 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 7200 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 7201 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 7202 | cancels any modification."); |
9fa4395d | 7203 | extra_keyboard_modifiers = 0; |
86e5706b RS |
7204 | |
7205 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
7206 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
7207 | The command loop sets this to nil before each command,\n\ | |
7208 | and tests the value when the command returns.\n\ | |
7209 | Buffer modification stores t in this variable."); | |
7210 | Vdeactivate_mark = Qnil; | |
7211 | ||
b0f2a7bf KH |
7212 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
7213 | "Temporary storage of pre-command-hook or post-command-hook."); | |
7214 | Vcommand_hook_internal = Qnil; | |
7215 | ||
86e5706b | 7216 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 RS |
7217 | "Normal hook run before each command is executed.\n\ |
7218 | While the hook is run, its value is temporarily set to nil\n\ | |
7219 | to avoid an unbreakable infinite loop if a hook function gets an error.\n\ | |
7220 | As a result, a hook function cannot straightforwardly alter the value of\n\ | |
7221 | `pre-command-hook'. See the Emacs Lisp manual for a way of\n\ | |
7222 | implementing hook functions that alter the set of hook functions."); | |
86e5706b RS |
7223 | Vpre_command_hook = Qnil; |
7224 | ||
7225 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 RS |
7226 | "Normal hook run after each command is executed.\n\ |
7227 | While the hook is run, its value is temporarily set to nil\n\ | |
7228 | to avoid an unbreakable infinite loop if a hook function gets an error.\n\ | |
7229 | As a result, a hook function cannot straightforwardly alter the value of\n\ | |
7230 | `post-command-hook'. See the Emacs Lisp manual for a way of\n\ | |
7231 | implementing hook functions that alter the set of hook functions."); | |
86e5706b | 7232 | Vpost_command_hook = Qnil; |
48e416d4 RS |
7233 | |
7234 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, | |
7235 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
7236 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 7237 | |
9f9c0e27 RS |
7238 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
7239 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 7240 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 7241 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 7242 | |
217258d5 KH |
7243 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
7244 | Voverriding_terminal_local_map, | |
7245 | "Keymap that overrides all other local keymaps.\n\ | |
7246 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
7247 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
7248 | ||
9dd3131c RS |
7249 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
7250 | "Keymap that overrides all other local keymaps.\n\ | |
7251 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
7252 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
7253 | Voverriding_local_map = Qnil; | |
7254 | ||
d0a49716 RS |
7255 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
7256 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
7257 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
7258 | and the minor mode maps regardless of `overriding-local-map'."); | |
7259 | Voverriding_local_map_menu_flag = Qnil; | |
7260 | ||
7f07d5ca RS |
7261 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
7262 | "Keymap defining bindings for special events to execute at low level."); | |
7263 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
7264 | ||
71edead1 | 7265 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 7266 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 7267 | |
7c97ffdc | 7268 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 7269 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 7270 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 7271 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 7272 | and SYMBOL is its name."); |
8a792f3a RS |
7273 | |
7274 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
7275 | "List of deferred actions to be performed at a later time.\n\ | |
7276 | The precise format isn't relevant here; we just check whether it is nil."); | |
7277 | Vdeferred_action_list = Qnil; | |
7278 | ||
7279 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
7280 | "Function to call to handle deferred actions, after each command.\n\ | |
7281 | This function is called with no arguments after each command\n\ | |
7282 | whenever `deferred-action-list' is non-nil."); | |
7283 | Vdeferred_action_function = Qnil; | |
284f4730 JB |
7284 | } |
7285 | ||
7286 | keys_of_keyboard () | |
7287 | { | |
7288 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
7289 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
7290 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
7291 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
7292 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
7293 | |
7294 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
7295 | "handle-delete-frame"); | |
7296 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
7297 | "ignore-event"); | |
7298 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
7299 | "ignore-event"); | |
284f4730 | 7300 | } |