Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
d925fb39 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97 Free Software Foundation, Inc. |
284f4730 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 8 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
284f4730 JB |
20 | |
21 | /* Allow config.h to undefine symbols found here. */ | |
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
284f4730 | 25 | #include <stdio.h> |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
28 | #include "lisp.h" | |
29 | #include "termhooks.h" | |
30 | #include "macros.h" | |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
284f4730 | 38 | #include "keyboard.h" |
e39da3d7 | 39 | #include "syntax.h" |
497ba7a1 | 40 | #include "intervals.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
284f4730 JB |
43 | #include <setjmp.h> |
44 | #include <errno.h> | |
45 | ||
80e4aa30 RS |
46 | #ifdef MSDOS |
47 | #include "msdos.h" | |
48 | #include <time.h> | |
49 | #else /* not MSDOS */ | |
284f4730 JB |
50 | #ifndef VMS |
51 | #include <sys/ioctl.h> | |
284f4730 | 52 | #endif |
80e4aa30 | 53 | #endif /* not MSDOS */ |
284f4730 | 54 | |
52baf19e | 55 | #include "syssignal.h" |
6ef5b54f | 56 | #include "systty.h" |
52baf19e | 57 | |
c5e3b6c5 RS |
58 | /* This is to get the definitions of the XK_ symbols. */ |
59 | #ifdef HAVE_X_WINDOWS | |
60 | #include "xterm.h" | |
61 | #endif | |
62 | ||
e98a93eb GV |
63 | #ifdef HAVE_NTGUI |
64 | #include "w32term.h" | |
65 | #endif /* HAVE_NTGUI */ | |
66 | ||
0c2611c5 RS |
67 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
68 | #include "systime.h" | |
69 | ||
52baf19e JB |
70 | extern int errno; |
71 | ||
9ac0d9e0 JB |
72 | /* Variables for blockinput.h: */ |
73 | ||
74 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 75 | int interrupt_input_blocked; |
9ac0d9e0 JB |
76 | |
77 | /* Nonzero means an input interrupt has arrived | |
78 | during the current critical section. */ | |
63927c41 | 79 | int interrupt_input_pending; |
9ac0d9e0 JB |
80 | |
81 | ||
437f6112 RS |
82 | /* File descriptor to use for input. */ |
83 | extern int input_fd; | |
284f4730 | 84 | |
e98a93eb | 85 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
86 | /* Make all keyboard buffers much bigger when using X windows. */ |
87 | #define KBD_BUFFER_SIZE 4096 | |
88 | #else /* No X-windows, character input */ | |
89 | #define KBD_BUFFER_SIZE 256 | |
90 | #endif /* No X-windows */ | |
91 | ||
92 | /* Following definition copied from eval.c */ | |
93 | ||
94 | struct backtrace | |
95 | { | |
96 | struct backtrace *next; | |
97 | Lisp_Object *function; | |
98 | Lisp_Object *args; /* Points to vector of args. */ | |
99 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
100 | args points to slot holding list of | |
101 | unevalled args */ | |
102 | char evalargs; | |
103 | }; | |
104 | ||
c5fdd383 KH |
105 | #ifdef MULTI_KBOARD |
106 | KBOARD *initial_kboard; | |
107 | KBOARD *current_kboard; | |
108 | KBOARD *all_kboards; | |
1e8bd3da | 109 | int single_kboard; |
6c6083a9 | 110 | #else |
c5fdd383 | 111 | KBOARD the_only_kboard; |
6c6083a9 | 112 | #endif |
612b78ef | 113 | |
284f4730 JB |
114 | /* Non-nil disable property on a command means |
115 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 116 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
117 | |
118 | #define NUM_RECENT_KEYS (100) | |
119 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
120 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 121 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 122 | |
6569cc8d JB |
123 | /* Vector holding the key sequence that invoked the current command. |
124 | It is reused for each command, and it may be longer than the current | |
125 | sequence; this_command_key_count indicates how many elements | |
126 | actually mean something. | |
127 | It's easier to staticpro a single Lisp_Object than an array. */ | |
128 | Lisp_Object this_command_keys; | |
129 | int this_command_key_count; | |
284f4730 | 130 | |
7d18f9ae RS |
131 | /* This vector is used as a buffer to record the events that were actually read |
132 | by read_key_sequence. */ | |
133 | Lisp_Object raw_keybuf; | |
134 | int raw_keybuf_count; | |
135 | ||
136 | #define GROW_RAW_KEYBUF \ | |
137 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
138 | { \ | |
139 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
140 | Lisp_Object new; \ | |
141 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
142 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
143 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
144 | raw_keybuf = new; \ | |
145 | } | |
146 | ||
6321824f RS |
147 | /* Number of elements of this_command_keys |
148 | that precede this key sequence. */ | |
149 | int this_single_command_key_start; | |
150 | ||
71918b75 RS |
151 | /* Record values of this_command_key_count and echo_length () |
152 | before this command was read. */ | |
153 | static int before_command_key_count; | |
154 | static int before_command_echo_length; | |
155 | /* Values of before_command_key_count and before_command_echo_length | |
156 | saved by reset-this-command-lengths. */ | |
157 | static int before_command_key_count_1; | |
158 | static int before_command_echo_length_1; | |
159 | /* Flag set by reset-this-command-lengths, | |
160 | saying to reset the lengths when add_command_key is called. */ | |
161 | static int before_command_restore_flag; | |
162 | ||
284f4730 JB |
163 | extern int minbuf_level; |
164 | ||
a59b172a RS |
165 | extern int message_enable_multibyte; |
166 | ||
284f4730 JB |
167 | extern struct backtrace *backtrace_list; |
168 | ||
169 | /* Nonzero means do menu prompting. */ | |
170 | static int menu_prompting; | |
171 | ||
172 | /* Character to see next line of menu prompt. */ | |
173 | static Lisp_Object menu_prompt_more_char; | |
174 | ||
175 | /* For longjmp to where kbd input is being done. */ | |
176 | static jmp_buf getcjmp; | |
177 | ||
178 | /* True while doing kbd input. */ | |
179 | int waiting_for_input; | |
180 | ||
181 | /* True while displaying for echoing. Delays C-g throwing. */ | |
182 | static int echoing; | |
183 | ||
1fc93d49 RS |
184 | /* True means we can start echoing at the next input pause |
185 | even though there is something in the echo area. */ | |
0c04a67e | 186 | static char *ok_to_echo_at_next_pause; |
1fc93d49 | 187 | |
03361bcc RS |
188 | /* Nonzero means disregard local maps for the menu bar. */ |
189 | static int inhibit_local_menu_bar_menus; | |
190 | ||
80e4aa30 | 191 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
192 | int immediate_quit; |
193 | ||
fa90970d RS |
194 | /* The user's ERASE setting. */ |
195 | Lisp_Object Vtty_erase_char; | |
196 | ||
284f4730 | 197 | /* Character to recognize as the help char. */ |
7e85b935 | 198 | Lisp_Object Vhelp_char; |
284f4730 | 199 | |
ecb7cb34 KH |
200 | /* List of other event types to recognize as meaning "help". */ |
201 | Lisp_Object Vhelp_event_list; | |
202 | ||
284f4730 JB |
203 | /* Form to execute when help char is typed. */ |
204 | Lisp_Object Vhelp_form; | |
205 | ||
7e85b935 RS |
206 | /* Command to run when the help character follows a prefix key. */ |
207 | Lisp_Object Vprefix_help_command; | |
208 | ||
9f9c0e27 RS |
209 | /* List of items that should move to the end of the menu bar. */ |
210 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 211 | |
6526ab49 RS |
212 | /* Non-nil means show the equivalent key-binding for |
213 | any M-x command that has one. | |
214 | The value can be a length of time to show the message for. | |
215 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
216 | Lisp_Object Vsuggest_key_bindings; | |
217 | ||
284f4730 JB |
218 | /* Character that causes a quit. Normally C-g. |
219 | ||
220 | If we are running on an ordinary terminal, this must be an ordinary | |
221 | ASCII char, since we want to make it our interrupt character. | |
222 | ||
223 | If we are not running on an ordinary terminal, it still needs to be | |
224 | an ordinary ASCII char. This character needs to be recognized in | |
225 | the input interrupt handler. At this point, the keystroke is | |
226 | represented as a struct input_event, while the desired quit | |
227 | character is specified as a lispy event. The mapping from struct | |
228 | input_events to lispy events cannot run in an interrupt handler, | |
229 | and the reverse mapping is difficult for anything but ASCII | |
230 | keystrokes. | |
231 | ||
232 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
233 | ASCII character. */ | |
234 | int quit_char; | |
235 | ||
236 | extern Lisp_Object current_global_map; | |
237 | extern int minibuf_level; | |
238 | ||
9dd3131c RS |
239 | /* If non-nil, this is a map that overrides all other local maps. */ |
240 | Lisp_Object Voverriding_local_map; | |
241 | ||
d0a49716 RS |
242 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
243 | Lisp_Object Voverriding_local_map_menu_flag; | |
244 | ||
7f07d5ca RS |
245 | /* Keymap that defines special misc events that should |
246 | be processed immediately at a low level. */ | |
247 | Lisp_Object Vspecial_event_map; | |
248 | ||
284f4730 JB |
249 | /* Current depth in recursive edits. */ |
250 | int command_loop_level; | |
251 | ||
252 | /* Total number of times command_loop has read a key sequence. */ | |
253 | int num_input_keys; | |
254 | ||
255 | /* Last input character read as a command. */ | |
256 | Lisp_Object last_command_char; | |
257 | ||
7d6de002 RS |
258 | /* Last input character read as a command, not counting menus |
259 | reached by the mouse. */ | |
260 | Lisp_Object last_nonmenu_event; | |
261 | ||
284f4730 JB |
262 | /* Last input character read for any purpose. */ |
263 | Lisp_Object last_input_char; | |
264 | ||
dbc4e1c1 | 265 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 266 | Lisp_Object Vunread_command_events; |
284f4730 | 267 | |
7d18f9ae RS |
268 | /* If not Qnil, a list of objects to be read as subsequent command input |
269 | including input method processing. */ | |
270 | Lisp_Object Vunread_input_method_events; | |
271 | ||
272 | /* If not Qnil, a list of objects to be read as subsequent command input | |
273 | but NOT including input method processing. */ | |
274 | Lisp_Object Vunread_post_input_method_events; | |
275 | ||
86e5706b RS |
276 | /* If not -1, an event to be read as subsequent command input. */ |
277 | int unread_command_char; | |
278 | ||
cd21b839 JB |
279 | /* If not Qnil, this is a switch-frame event which we decided to put |
280 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 281 | next command input, after any unread_command_events. |
8f805655 JB |
282 | |
283 | read_key_sequence uses this to delay switch-frame events until the | |
284 | end of the key sequence; Fread_char uses it to put off switch-frame | |
285 | events until a non-ASCII event is acceptable as input. */ | |
286 | Lisp_Object unread_switch_frame; | |
cd21b839 | 287 | |
9fa4395d RS |
288 | /* A mask of extra modifier bits to put into every keyboard char. */ |
289 | int extra_keyboard_modifiers; | |
290 | ||
284f4730 JB |
291 | /* Char to use as prefix when a meta character is typed in. |
292 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
293 | ||
294 | Lisp_Object meta_prefix_char; | |
295 | ||
296 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
297 | static int last_non_minibuf_size; | |
298 | ||
06ef7355 | 299 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
300 | static Lisp_Object Vauto_save_timeout; |
301 | ||
302 | /* Total number of times read_char has returned. */ | |
4abfba1f | 303 | int num_input_events; |
284f4730 | 304 | |
51172b6d | 305 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 306 | int num_nonmacro_input_events; |
51172b6d | 307 | |
284f4730 JB |
308 | /* Auto-save automatically when this many characters have been typed |
309 | since the last time. */ | |
310 | ||
311 | static int auto_save_interval; | |
312 | ||
c43b1734 | 313 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
314 | |
315 | int last_auto_save; | |
316 | ||
284f4730 | 317 | /* The command being executed by the command loop. |
6c7178b9 KH |
318 | Commands may set this, and the value set will be copied into |
319 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
320 | Lisp_Object Vthis_command; |
321 | ||
322 | /* This is like Vthis_command, except that commands never set it. */ | |
323 | Lisp_Object real_this_command; | |
284f4730 | 324 | |
b453f72e KH |
325 | /* The value of point when the last command was executed. */ |
326 | int last_point_position; | |
327 | ||
047688cb RS |
328 | /* The buffer that was current when the last command was started. */ |
329 | Lisp_Object last_point_position_buffer; | |
330 | ||
4c52b668 KH |
331 | /* The frame in which the last input event occurred, or Qmacro if the |
332 | last event came from a macro. We use this to determine when to | |
333 | generate switch-frame events. This may be cleared by functions | |
334 | like Fselect_frame, to make sure that a switch-frame event is | |
335 | generated by the next character. */ | |
336 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
337 | |
338 | /* A user-visible version of the above, intended to allow users to | |
339 | figure out where the last event came from, if the event doesn't | |
340 | carry that information itself (i.e. if it was a character). */ | |
341 | Lisp_Object Vlast_event_frame; | |
342 | ||
1113d9db JB |
343 | /* The timestamp of the last input event we received from the X server. |
344 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
345 | unsigned long last_event_timestamp; |
346 | ||
347 | Lisp_Object Qself_insert_command; | |
348 | Lisp_Object Qforward_char; | |
349 | Lisp_Object Qbackward_char; | |
e58aa385 | 350 | Lisp_Object Qundefined; |
d925fb39 | 351 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
352 | |
353 | /* read_key_sequence stores here the command definition of the | |
354 | key sequence that it reads. */ | |
355 | Lisp_Object read_key_sequence_cmd; | |
356 | ||
357 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
358 | Lisp_Object Vtop_level; | |
359 | ||
360 | /* User-supplied string to translate input characters through. */ | |
361 | Lisp_Object Vkeyboard_translate_table; | |
362 | ||
363 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
364 | extern Lisp_Object Vfunction_key_map; | |
365 | ||
e0301c07 RS |
366 | /* Another keymap that maps key sequences into key sequences. |
367 | This one takes precedence over ordinary definitions. */ | |
368 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 369 | |
7d18f9ae RS |
370 | /* If non-nil, this implements the current input method. */ |
371 | Lisp_Object Vinput_method_function; | |
372 | Lisp_Object Qinput_method_function; | |
373 | ||
d5eecefb RS |
374 | /* When we call Vinput_method_function, |
375 | this holds the echo area message that was just erased. */ | |
376 | Lisp_Object Vinput_method_previous_message; | |
377 | ||
86e5706b RS |
378 | /* Non-nil means deactivate the mark at end of this command. */ |
379 | Lisp_Object Vdeactivate_mark; | |
380 | ||
48e416d4 RS |
381 | /* Menu bar specified in Lucid Emacs fashion. */ |
382 | ||
383 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
384 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
385 | ||
cdb9d665 RS |
386 | Lisp_Object Qecho_area_clear_hook; |
387 | ||
86e5706b | 388 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
389 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
390 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 391 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
392 | /* Hook run after a command if there's no more input soon. */ |
393 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
394 | ||
395 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
396 | int post_command_idle_delay; | |
86e5706b | 397 | |
8a792f3a RS |
398 | /* List of deferred actions to be performed at a later time. |
399 | The precise format isn't relevant here; we just check whether it is nil. */ | |
400 | Lisp_Object Vdeferred_action_list; | |
401 | ||
402 | /* Function to call to handle deferred actions, when there are any. */ | |
403 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 404 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 405 | |
d5eecefb RS |
406 | Lisp_Object Qinput_method_exit_on_first_char; |
407 | Lisp_Object Qinput_method_use_echo_area; | |
408 | ||
284f4730 JB |
409 | /* File in which we write all commands we read. */ |
410 | FILE *dribble; | |
411 | ||
412 | /* Nonzero if input is available. */ | |
413 | int input_pending; | |
414 | ||
b04904fb RS |
415 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
416 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
417 | ||
284f4730 JB |
418 | int meta_key; |
419 | ||
420 | extern char *pending_malloc_warning; | |
421 | ||
beecf6a1 KH |
422 | /* Circular buffer for pre-read keyboard input. */ |
423 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
424 | ||
425 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
426 | ||
427 | The interrupt-level event handlers will never enqueue an event on a | |
428 | frame which is not in Vframe_list, and once an event is dequeued, | |
429 | internal_last_event_frame or the event itself points to the frame. | |
430 | So that's all fine. | |
431 | ||
432 | But while the event is sitting in the queue, it's completely | |
433 | unprotected. Suppose the user types one command which will run for | |
434 | a while and then delete a frame, and then types another event at | |
435 | the frame that will be deleted, before the command gets around to | |
436 | it. Suppose there are no references to this frame elsewhere in | |
437 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
438 | have an event referring to a freed frame, which will crash Emacs | |
439 | when it is dequeued. | |
440 | ||
441 | Similar things happen when an event on a scroll bar is enqueued; the | |
442 | window may be deleted while the event is in the queue. | |
443 | ||
444 | So, we use this vector to protect the frame_or_window field in the | |
445 | event queue. That way, they'll be dequeued as dead frames or | |
446 | windows, but still valid lisp objects. | |
447 | ||
448 | If kbd_buffer[i].kind != no_event, then | |
449 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
450 | == kbd_buffer[i].frame_or_window. */ | |
451 | static Lisp_Object kbd_buffer_frame_or_window; | |
452 | ||
453 | /* Pointer to next available character in kbd_buffer. | |
454 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
455 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
456 | next available char is in kbd_buffer[0]. */ | |
457 | static struct input_event *kbd_fetch_ptr; | |
458 | ||
459 | /* Pointer to next place to store character in kbd_buffer. This | |
460 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
461 | character should go in kbd_buffer[0]. */ | |
462 | static volatile struct input_event *kbd_store_ptr; | |
463 | ||
464 | /* The above pair of variables forms a "queue empty" flag. When we | |
465 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
466 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
467 | there is input available iff the two pointers are not equal. | |
468 | ||
469 | Why not just have a flag set and cleared by the enqueuing and | |
470 | dequeuing functions? Such a flag could be screwed up by interrupts | |
471 | at inopportune times. */ | |
472 | ||
f3253854 | 473 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
474 | mouse moves, and motion events will appear in the input stream. |
475 | Otherwise, mouse motion is ignored. */ | |
476 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 477 | |
284f4730 JB |
478 | /* Symbols to head events. */ |
479 | Lisp_Object Qmouse_movement; | |
3c370943 | 480 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 481 | Lisp_Object Qswitch_frame; |
bbdc2092 | 482 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
483 | Lisp_Object Qiconify_frame; |
484 | Lisp_Object Qmake_frame_visible; | |
cd21b839 | 485 | |
284f4730 JB |
486 | /* Symbols to denote kinds of events. */ |
487 | Lisp_Object Qfunction_key; | |
488 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
489 | #ifdef WINDOWSNT |
490 | Lisp_Object Qmouse_wheel; | |
1161d367 | 491 | Lisp_Object Qlanguage_change; |
07de30b9 | 492 | #endif |
a24dc617 | 493 | Lisp_Object Qdrag_n_drop; |
284f4730 | 494 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
495 | |
496 | /* Properties of event headers. */ | |
497 | Lisp_Object Qevent_kind; | |
88cb0656 | 498 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 499 | |
e8886a1d RS |
500 | /* menu item parts */ |
501 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 502 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
503 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
504 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
505 | extern Lisp_Object Vdefine_key_rebound_commands; |
506 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 507 | |
0a7f1fc0 JB |
508 | /* An event header symbol HEAD may have a property named |
509 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
510 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
511 | mask of modifiers applied to it. If present, this is used to help | |
512 | speed up parse_modifiers. */ | |
513 | Lisp_Object Qevent_symbol_element_mask; | |
514 | ||
515 | /* An unmodified event header BASE may have a property named | |
516 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
517 | modified versions of BASE. If present, this helps speed up | |
518 | apply_modifiers. */ | |
519 | Lisp_Object Qmodifier_cache; | |
520 | ||
5ec75a55 | 521 | /* Symbols to use for parts of windows. */ |
284f4730 | 522 | Lisp_Object Qmode_line; |
e5d77022 | 523 | Lisp_Object Qvertical_line; |
3c370943 | 524 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
525 | Lisp_Object Qmenu_bar; |
526 | ||
f4255cd1 JB |
527 | Lisp_Object recursive_edit_unwind (), command_loop (); |
528 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 529 | Lisp_Object Qextended_command_history; |
c04cbc3b | 530 | EMACS_TIME timer_check (); |
284f4730 | 531 | |
f4385381 RS |
532 | extern Lisp_Object Vhistory_length; |
533 | ||
2c834fb3 KH |
534 | extern char *x_get_keysym_name (); |
535 | ||
8eb4d8ef RS |
536 | static void record_menu_key (); |
537 | ||
f4eef8b4 RS |
538 | Lisp_Object Qpolling_period; |
539 | ||
d9d4c147 | 540 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
541 | Lisp_Object Vtimer_list; |
542 | ||
d9d4c147 KH |
543 | /* List of idle time timers. Appears in order of next scheduled event. */ |
544 | Lisp_Object Vtimer_idle_list; | |
545 | ||
87dd9b9b RS |
546 | /* Incremented whenever a timer is run. */ |
547 | int timers_run; | |
548 | ||
a9f16aa9 KH |
549 | extern Lisp_Object Vprint_level, Vprint_length; |
550 | ||
ffd56f97 JB |
551 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
552 | happens. */ | |
553 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
554 | |
555 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
556 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
557 | int interrupt_input; | |
558 | ||
559 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
560 | int interrupts_deferred; | |
561 | ||
87dd9b9b | 562 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
563 | int flow_control; |
564 | ||
284f4730 JB |
565 | /* Allow m- file to inhibit use of FIONREAD. */ |
566 | #ifdef BROKEN_FIONREAD | |
567 | #undef FIONREAD | |
568 | #endif | |
569 | ||
570 | /* We are unable to use interrupts if FIONREAD is not available, | |
571 | so flush SIGIO so we won't try. */ | |
572 | #ifndef FIONREAD | |
573 | #ifdef SIGIO | |
574 | #undef SIGIO | |
575 | #endif | |
576 | #endif | |
577 | ||
e98a93eb | 578 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 579 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 580 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
581 | #define POLL_FOR_INPUT |
582 | #endif | |
284f4730 JB |
583 | \f |
584 | /* Global variable declarations. */ | |
585 | ||
586 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
587 | void (*keyboard_init_hook) (); | |
588 | ||
589 | static int read_avail_input (); | |
590 | static void get_input_pending (); | |
9fd7d808 | 591 | static int readable_events (); |
8150596a RS |
592 | static Lisp_Object read_char_x_menu_prompt (); |
593 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 594 | static Lisp_Object make_lispy_event (); |
514354e9 | 595 | #ifdef HAVE_MOUSE |
a612e298 | 596 | static Lisp_Object make_lispy_movement (); |
514354e9 | 597 | #endif |
a612e298 RS |
598 | static Lisp_Object modify_event_symbol (); |
599 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 600 | static int parse_solitary_modifier (); |
dfcf069d AS |
601 | static void save_getcjmp (); |
602 | static void restore_getcjmp (); | |
284f4730 JB |
603 | |
604 | /* > 0 if we are to echo keystrokes. */ | |
605 | static int echo_keystrokes; | |
606 | ||
8026024c KH |
607 | /* Nonzero means don't try to suspend even if the operating system seems |
608 | to support it. */ | |
609 | static int cannot_suspend; | |
610 | ||
284f4730 JB |
611 | #define min(a,b) ((a)<(b)?(a):(b)) |
612 | #define max(a,b) ((a)>(b)?(a):(b)) | |
613 | ||
614 | /* Install the string STR as the beginning of the string of echoing, | |
615 | so that it serves as a prompt for the next character. | |
616 | Also start echoing. */ | |
617 | ||
dfcf069d | 618 | void |
284f4730 JB |
619 | echo_prompt (str) |
620 | char *str; | |
621 | { | |
622 | int len = strlen (str); | |
7a80a6f6 | 623 | |
ba72822c KH |
624 | if (len > ECHOBUFSIZE - 4) |
625 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
626 | bcopy (str, current_kboard->echobuf, len); |
627 | current_kboard->echoptr = current_kboard->echobuf + len; | |
628 | *current_kboard->echoptr = '\0'; | |
284f4730 | 629 | |
c5fdd383 | 630 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 631 | |
3dbd9ee4 | 632 | echo_now (); |
284f4730 JB |
633 | } |
634 | ||
df0f2ba1 | 635 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
636 | C can be a character, which is printed prettily ("M-C-x" and all that |
637 | jazz), or a symbol, whose name is printed. */ | |
638 | ||
dfcf069d | 639 | void |
284f4730 JB |
640 | echo_char (c) |
641 | Lisp_Object c; | |
642 | { | |
643 | extern char *push_key_description (); | |
644 | ||
c5fdd383 | 645 | if (current_kboard->immediate_echo) |
284f4730 | 646 | { |
c5fdd383 | 647 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 648 | |
c5fdd383 | 649 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
650 | *ptr++ = ' '; |
651 | ||
652 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 653 | c = EVENT_HEAD (c); |
284f4730 | 654 | |
8c18cbfb | 655 | if (INTEGERP (c)) |
284f4730 | 656 | { |
c5fdd383 | 657 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
658 | return; |
659 | ||
cb5df6ae | 660 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 661 | } |
8c18cbfb | 662 | else if (SYMBOLP (c)) |
284f4730 JB |
663 | { |
664 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 665 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 666 | > ECHOBUFSIZE) |
284f4730 | 667 | return; |
fc932ac6 RS |
668 | bcopy (name->data, ptr, STRING_BYTES (name)); |
669 | ptr += STRING_BYTES (name); | |
284f4730 JB |
670 | } |
671 | ||
c5fdd383 | 672 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 673 | && help_char_p (c)) |
284f4730 JB |
674 | { |
675 | strcpy (ptr, " (Type ? for further options)"); | |
676 | ptr += strlen (ptr); | |
677 | } | |
678 | ||
679 | *ptr = 0; | |
c5fdd383 | 680 | current_kboard->echoptr = ptr; |
284f4730 | 681 | |
3dbd9ee4 | 682 | echo_now (); |
284f4730 JB |
683 | } |
684 | } | |
685 | ||
686 | /* Temporarily add a dash to the end of the echo string if it's not | |
687 | empty, so that it serves as a mini-prompt for the very next character. */ | |
688 | ||
dfcf069d | 689 | void |
284f4730 JB |
690 | echo_dash () |
691 | { | |
c5fdd383 KH |
692 | if (!current_kboard->immediate_echo |
693 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 694 | return; |
7a80a6f6 | 695 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
696 | if (current_kboard->echo_after_prompt |
697 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 698 | return; |
4bafa972 | 699 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 700 | if (current_kboard->echoptr == 0) |
4bafa972 | 701 | return; |
284f4730 JB |
702 | |
703 | /* Put a dash at the end of the buffer temporarily, | |
704 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
705 | current_kboard->echoptr[0] = '-'; |
706 | current_kboard->echoptr[1] = 0; | |
284f4730 | 707 | |
3dbd9ee4 | 708 | echo_now (); |
284f4730 JB |
709 | } |
710 | ||
711 | /* Display the current echo string, and begin echoing if not already | |
712 | doing so. */ | |
713 | ||
07a59269 | 714 | void |
3dbd9ee4 | 715 | echo_now () |
284f4730 | 716 | { |
c5fdd383 | 717 | if (!current_kboard->immediate_echo) |
284f4730 JB |
718 | { |
719 | int i; | |
c5fdd383 | 720 | current_kboard->immediate_echo = 1; |
284f4730 JB |
721 | |
722 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
723 | { |
724 | Lisp_Object c; | |
725 | c = XVECTOR (this_command_keys)->contents[i]; | |
726 | if (! (EVENT_HAS_PARAMETERS (c) | |
727 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
728 | echo_char (c); | |
729 | } | |
284f4730 JB |
730 | echo_dash (); |
731 | } | |
732 | ||
733 | echoing = 1; | |
301738ed RS |
734 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
735 | ! NILP (current_buffer->enable_multibyte_characters)); | |
736 | ||
284f4730 JB |
737 | echoing = 0; |
738 | ||
739 | if (waiting_for_input && !NILP (Vquit_flag)) | |
740 | quit_throw_to_read_char (); | |
741 | } | |
742 | ||
743 | /* Turn off echoing, for the start of a new command. */ | |
744 | ||
dfcf069d | 745 | void |
284f4730 JB |
746 | cancel_echoing () |
747 | { | |
c5fdd383 KH |
748 | current_kboard->immediate_echo = 0; |
749 | current_kboard->echoptr = current_kboard->echobuf; | |
750 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 751 | ok_to_echo_at_next_pause = 0; |
284f4730 JB |
752 | } |
753 | ||
754 | /* Return the length of the current echo string. */ | |
755 | ||
756 | static int | |
757 | echo_length () | |
758 | { | |
c5fdd383 | 759 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
760 | } |
761 | ||
762 | /* Truncate the current echo message to its first LEN chars. | |
763 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 764 | switches frames while entering a key sequence. */ |
284f4730 JB |
765 | |
766 | static void | |
767 | echo_truncate (len) | |
768 | int len; | |
769 | { | |
c5fdd383 KH |
770 | current_kboard->echobuf[len] = '\0'; |
771 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 772 | truncate_echo_area (len); |
284f4730 JB |
773 | } |
774 | ||
775 | \f | |
776 | /* Functions for manipulating this_command_keys. */ | |
777 | static void | |
778 | add_command_key (key) | |
779 | Lisp_Object key; | |
780 | { | |
6569cc8d JB |
781 | int size = XVECTOR (this_command_keys)->size; |
782 | ||
71918b75 RS |
783 | /* If reset-this-command-length was called recently, obey it now. |
784 | See the doc string of that function for an explanation of why. */ | |
785 | if (before_command_restore_flag) | |
786 | { | |
787 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
788 | if (this_command_key_count < this_single_command_key_start) |
789 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
790 | echo_truncate (before_command_echo_length_1); |
791 | before_command_restore_flag = 0; | |
792 | } | |
793 | ||
6569cc8d | 794 | if (this_command_key_count >= size) |
284f4730 | 795 | { |
9b8eb840 | 796 | Lisp_Object new_keys; |
6569cc8d | 797 | |
9b8eb840 | 798 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
799 | bcopy (XVECTOR (this_command_keys)->contents, |
800 | XVECTOR (new_keys)->contents, | |
8f805655 | 801 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
802 | |
803 | this_command_keys = new_keys; | |
284f4730 | 804 | } |
6569cc8d JB |
805 | |
806 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
807 | } |
808 | \f | |
809 | Lisp_Object | |
810 | recursive_edit_1 () | |
811 | { | |
812 | int count = specpdl_ptr - specpdl; | |
813 | Lisp_Object val; | |
814 | ||
815 | if (command_loop_level > 0) | |
816 | { | |
817 | specbind (Qstandard_output, Qt); | |
818 | specbind (Qstandard_input, Qt); | |
819 | } | |
820 | ||
821 | val = command_loop (); | |
822 | if (EQ (val, Qt)) | |
823 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
824 | /* Handle throw from read_minibuf when using minibuffer |
825 | while it's active but we're in another window. */ | |
826 | if (STRINGP (val)) | |
827 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 828 | |
cb5df6ae | 829 | return unbind_to (count, Qnil); |
284f4730 JB |
830 | } |
831 | ||
832 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 833 | |
07a59269 | 834 | void |
284f4730 JB |
835 | record_auto_save () |
836 | { | |
c43b1734 | 837 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 838 | } |
5846638c RS |
839 | |
840 | /* Make an auto save happen as soon as possible at command level. */ | |
841 | ||
dfcf069d | 842 | void |
5846638c RS |
843 | force_auto_save_soon () |
844 | { | |
845 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
846 | |
847 | record_asynch_buffer_change (); | |
5846638c | 848 | } |
284f4730 | 849 | \f |
284f4730 JB |
850 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
851 | "Invoke the editor command loop recursively.\n\ | |
852 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
853 | that tells this function to return.\n\ | |
854 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
855 | This function is called by the editor initialization to begin editing.") | |
856 | () | |
857 | { | |
858 | int count = specpdl_ptr - specpdl; | |
859 | Lisp_Object val; | |
860 | ||
861 | command_loop_level++; | |
862 | update_mode_lines = 1; | |
863 | ||
864 | record_unwind_protect (recursive_edit_unwind, | |
865 | (command_loop_level | |
866 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
867 | ? Fcurrent_buffer () | |
868 | : Qnil); | |
869 | recursive_edit_1 (); | |
870 | return unbind_to (count, Qnil); | |
871 | } | |
872 | ||
873 | Lisp_Object | |
874 | recursive_edit_unwind (buffer) | |
875 | Lisp_Object buffer; | |
876 | { | |
877 | if (!NILP (buffer)) | |
878 | Fset_buffer (buffer); | |
879 | ||
880 | command_loop_level--; | |
881 | update_mode_lines = 1; | |
882 | return Qnil; | |
883 | } | |
884 | \f | |
604ccd1d | 885 | static void |
1e8bd3da | 886 | any_kboard_state () |
604ccd1d | 887 | { |
1e8bd3da RS |
888 | #ifdef MULTI_KBOARD |
889 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
890 | it will right away be read by read_key_sequence, | |
891 | and then if we do switch KBOARDS, it will go into the side | |
892 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 893 | if (CONSP (Vunread_command_events)) |
4524b161 | 894 | { |
c5fdd383 KH |
895 | current_kboard->kbd_queue |
896 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
897 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 898 | } |
604ccd1d | 899 | Vunread_command_events = Qnil; |
1e8bd3da RS |
900 | #endif |
901 | single_kboard = 0; | |
902 | #endif | |
604ccd1d | 903 | } |
1e8bd3da RS |
904 | |
905 | /* Switch to the single-kboard state, making current_kboard | |
906 | the only KBOARD from which further input is accepted. */ | |
907 | ||
908 | void | |
909 | single_kboard_state () | |
910 | { | |
911 | #ifdef MULTI_KBOARD | |
912 | single_kboard = 1; | |
604ccd1d | 913 | #endif |
1e8bd3da RS |
914 | } |
915 | ||
916 | /* Maintain a stack of kboards, so other parts of Emacs | |
917 | can switch temporarily to the kboard of a given frame | |
918 | and then revert to the previous status. */ | |
919 | ||
920 | struct kboard_stack | |
921 | { | |
922 | KBOARD *kboard; | |
923 | struct kboard_stack *next; | |
924 | }; | |
925 | ||
926 | static struct kboard_stack *kboard_stack; | |
927 | ||
928 | void | |
929 | push_frame_kboard (f) | |
930 | FRAME_PTR f; | |
931 | { | |
ab48365b | 932 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
933 | struct kboard_stack *p |
934 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
935 | ||
936 | p->next = kboard_stack; | |
937 | p->kboard = current_kboard; | |
938 | kboard_stack = p; | |
939 | ||
940 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 941 | #endif |
1e8bd3da RS |
942 | } |
943 | ||
944 | void | |
945 | pop_frame_kboard () | |
946 | { | |
ab48365b | 947 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
948 | struct kboard_stack *p = kboard_stack; |
949 | current_kboard = p->kboard; | |
950 | kboard_stack = p->next; | |
951 | xfree (p); | |
ab48365b | 952 | #endif |
1e8bd3da RS |
953 | } |
954 | \f | |
955 | /* Handle errors that are not handled at inner levels | |
956 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 957 | |
284f4730 JB |
958 | Lisp_Object |
959 | cmd_error (data) | |
960 | Lisp_Object data; | |
a1341f75 | 961 | { |
a9f16aa9 | 962 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
963 | char macroerror[50]; |
964 | ||
965 | if (!NILP (executing_macro)) | |
966 | { | |
967 | if (executing_macro_iterations == 1) | |
968 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
969 | else | |
970 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
971 | executing_macro_iterations); | |
972 | } | |
973 | else | |
974 | *macroerror = 0; | |
a9f16aa9 | 975 | |
a1341f75 RS |
976 | Vstandard_output = Qt; |
977 | Vstandard_input = Qt; | |
978 | Vexecuting_macro = Qnil; | |
9f58e89e | 979 | executing_macro = Qnil; |
d8bcf58e | 980 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 981 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 982 | cancel_echoing (); |
a9f16aa9 KH |
983 | |
984 | /* Avoid unquittable loop if data contains a circular list. */ | |
985 | old_level = Vprint_level; | |
986 | old_length = Vprint_length; | |
0c04a67e RS |
987 | XSETFASTINT (Vprint_level, 10); |
988 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 989 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
990 | Vprint_level = old_level; |
991 | Vprint_length = old_length; | |
a1341f75 RS |
992 | |
993 | Vquit_flag = Qnil; | |
994 | ||
995 | Vinhibit_quit = Qnil; | |
c5fdd383 | 996 | #ifdef MULTI_KBOARD |
1e8bd3da | 997 | any_kboard_state (); |
ff4b06d3 | 998 | #endif |
a1341f75 RS |
999 | |
1000 | return make_number (0); | |
1001 | } | |
1002 | ||
301738ed RS |
1003 | /* Take actions on handling an error. DATA is the data that describes |
1004 | the error. | |
1005 | ||
1006 | CONTEXT is a C-string containing ASCII characters only which | |
1007 | describes the context in which the error happened. If we need to | |
1008 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1009 | string. */ | |
1010 | ||
07a59269 | 1011 | void |
a1341f75 RS |
1012 | cmd_error_internal (data, context) |
1013 | Lisp_Object data; | |
1014 | char *context; | |
284f4730 | 1015 | { |
284f4730 | 1016 | Lisp_Object stream; |
284f4730 JB |
1017 | |
1018 | Vquit_flag = Qnil; | |
1019 | Vinhibit_quit = Qt; | |
284f4730 JB |
1020 | echo_area_glyphs = 0; |
1021 | ||
ff11dfa1 | 1022 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1023 | yet, or we're not interactive, it's best to dump this message out |
1024 | to stderr and exit. */ | |
ff11dfa1 | 1025 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
1026 | || noninteractive) |
1027 | stream = Qexternal_debugging_output; | |
1028 | else | |
1029 | { | |
1030 | Fdiscard_input (); | |
1031 | bitch_at_user (); | |
1032 | stream = Qt; | |
1033 | } | |
1034 | ||
a1341f75 RS |
1035 | if (context != 0) |
1036 | write_string_1 (context, -1, stream); | |
1037 | ||
22a51344 | 1038 | print_error_message (data, stream); |
284f4730 | 1039 | |
ff11dfa1 | 1040 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1041 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
ff11dfa1 | 1042 | if (! FRAME_MESSAGE_BUF (selected_frame) |
284f4730 JB |
1043 | || noninteractive) |
1044 | { | |
1045 | Fterpri (stream); | |
1046 | Fkill_emacs (make_number (-1)); | |
1047 | } | |
284f4730 JB |
1048 | } |
1049 | \f | |
1050 | Lisp_Object command_loop_1 (); | |
1051 | Lisp_Object command_loop_2 (); | |
1052 | Lisp_Object top_level_1 (); | |
1053 | ||
1054 | /* Entry to editor-command-loop. | |
1055 | This level has the catches for exiting/returning to editor command loop. | |
1056 | It returns nil to exit recursive edit, t to abort it. */ | |
1057 | ||
1058 | Lisp_Object | |
1059 | command_loop () | |
1060 | { | |
1061 | if (command_loop_level > 0 || minibuf_level > 0) | |
1062 | { | |
07ba902e RS |
1063 | Lisp_Object val; |
1064 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1065 | executing_macro = Qnil; |
1066 | return val; | |
284f4730 JB |
1067 | } |
1068 | else | |
1069 | while (1) | |
1070 | { | |
1071 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1072 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1073 | executing_macro = Qnil; |
df0f2ba1 | 1074 | |
284f4730 JB |
1075 | /* End of file in -batch run causes exit here. */ |
1076 | if (noninteractive) | |
1077 | Fkill_emacs (Qt); | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | /* Here we catch errors in execution of commands within the | |
1082 | editing loop, and reenter the editing loop. | |
1083 | When there is an error, cmd_error runs and returns a non-nil | |
1084 | value to us. A value of nil means that cmd_loop_1 itself | |
1085 | returned due to end of file (or end of kbd macro). */ | |
1086 | ||
1087 | Lisp_Object | |
1088 | command_loop_2 () | |
1089 | { | |
1090 | register Lisp_Object val; | |
1091 | ||
1092 | do | |
1093 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1094 | while (!NILP (val)); | |
1095 | ||
1096 | return Qnil; | |
1097 | } | |
1098 | ||
1099 | Lisp_Object | |
1100 | top_level_2 () | |
1101 | { | |
1102 | return Feval (Vtop_level); | |
1103 | } | |
1104 | ||
1105 | Lisp_Object | |
1106 | top_level_1 () | |
1107 | { | |
1108 | /* On entry to the outer level, run the startup file */ | |
1109 | if (!NILP (Vtop_level)) | |
1110 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1111 | else if (!NILP (Vpurify_flag)) | |
1112 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1113 | else | |
1114 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1115 | return Qnil; | |
1116 | } | |
1117 | ||
1118 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1119 | "Exit all recursive editing levels.") | |
1120 | () | |
1121 | { | |
1122 | Fthrow (Qtop_level, Qnil); | |
1123 | } | |
1124 | ||
1125 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1126 | "Exit from the innermost recursive edit or minibuffer.") | |
1127 | () | |
1128 | { | |
1129 | if (command_loop_level > 0 || minibuf_level > 0) | |
1130 | Fthrow (Qexit, Qnil); | |
1131 | ||
1132 | error ("No recursive edit is in progress"); | |
1133 | } | |
1134 | ||
1135 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1136 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1137 | () | |
1138 | { | |
1139 | if (command_loop_level > 0 || minibuf_level > 0) | |
1140 | Fthrow (Qexit, Qt); | |
1141 | ||
1142 | error ("No recursive edit is in progress"); | |
1143 | } | |
1144 | \f | |
1145 | /* This is the actual command reading loop, | |
1146 | sans error-handling encapsulation. */ | |
1147 | ||
1148 | Lisp_Object Fcommand_execute (); | |
1149 | static int read_key_sequence (); | |
68f297c5 | 1150 | void safe_run_hooks (); |
284f4730 JB |
1151 | |
1152 | Lisp_Object | |
1153 | command_loop_1 () | |
1154 | { | |
48e416d4 | 1155 | Lisp_Object cmd, tem; |
37cd9f30 | 1156 | int lose, lose2; |
284f4730 JB |
1157 | int nonundocount; |
1158 | Lisp_Object keybuf[30]; | |
1159 | int i; | |
1160 | int no_redisplay; | |
1161 | int no_direct; | |
86e5706b RS |
1162 | int prev_modiff; |
1163 | struct buffer *prev_buffer; | |
c5fdd383 | 1164 | #ifdef MULTI_KBOARD |
1e8bd3da | 1165 | int was_locked = single_kboard; |
bded54dd | 1166 | #endif |
284f4730 | 1167 | |
d9b641bb | 1168 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1169 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1170 | Vdeactivate_mark = Qnil; |
284f4730 | 1171 | waiting_for_input = 0; |
df0f2ba1 | 1172 | cancel_echoing (); |
284f4730 | 1173 | |
284f4730 JB |
1174 | nonundocount = 0; |
1175 | no_redisplay = 0; | |
1176 | this_command_key_count = 0; | |
6321824f | 1177 | this_single_command_key_start = 0; |
284f4730 | 1178 | |
a612e298 RS |
1179 | /* Make sure this hook runs after commands that get errors and |
1180 | throw to top level. */ | |
a98ea3f9 RS |
1181 | /* Note that the value cell will never directly contain nil |
1182 | if the symbol is a local variable. */ | |
e98a93eb | 1183 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1184 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1185 | |
8a792f3a RS |
1186 | if (!NILP (Vdeferred_action_list)) |
1187 | call0 (Vdeferred_action_function); | |
1188 | ||
e98a93eb | 1189 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1190 | { |
1191 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1192 | && NILP (Vunread_input_method_events) |
1193 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1194 | && NILP (Vexecuting_macro) |
41365083 | 1195 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1196 | safe_run_hooks (Qpost_command_idle_hook); |
1197 | } | |
1198 | ||
51d5a2c9 | 1199 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1200 | current_kboard->Vlast_command = Vthis_command; |
1201 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1202 | |
284f4730 JB |
1203 | while (1) |
1204 | { | |
a94a4335 KH |
1205 | if (! FRAME_LIVE_P (selected_frame)) |
1206 | Fkill_emacs (Qnil); | |
1207 | ||
284f4730 JB |
1208 | /* Make sure the current window's buffer is selected. */ |
1209 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1210 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1211 | ||
1212 | /* Display any malloc warning that just came out. Use while because | |
1213 | displaying one warning can cause another. */ | |
1214 | ||
1215 | while (pending_malloc_warning) | |
1216 | display_malloc_warning (); | |
1217 | ||
1218 | no_direct = 0; | |
1219 | ||
86e5706b RS |
1220 | Vdeactivate_mark = Qnil; |
1221 | ||
284f4730 | 1222 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1223 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1224 | |
93127526 RS |
1225 | if (minibuf_level && echo_area_glyphs |
1226 | && EQ (minibuf_window, echo_area_window)) | |
284f4730 | 1227 | { |
f1bed6d8 RS |
1228 | /* Bind inhibit-quit to t so that C-g gets read in |
1229 | rather than quitting back to the minibuffer. */ | |
1230 | int count = specpdl_ptr - specpdl; | |
1231 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1232 | |
db08707d | 1233 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1234 | /* Clear the echo area. */ |
301738ed | 1235 | message2 (0, 0, 0); |
cdb9d665 | 1236 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1237 | |
db08707d RS |
1238 | unbind_to (count, Qnil); |
1239 | ||
e6aa7813 | 1240 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1241 | if (!NILP (Vquit_flag)) |
1242 | { | |
1243 | Vquit_flag = Qnil; | |
24597608 | 1244 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1245 | } |
1246 | } | |
1247 | ||
1248 | #ifdef C_ALLOCA | |
ff4b06d3 | 1249 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1250 | /* Since we can free the most stuff here. */ |
1251 | #endif /* C_ALLOCA */ | |
1252 | ||
8f805655 | 1253 | #if 0 |
8f805655 JB |
1254 | /* Select the frame that the last event came from. Usually, |
1255 | switch-frame events will take care of this, but if some lisp | |
1256 | code swallows a switch-frame event, we'll fix things up here. | |
1257 | Is this a good idea? */ | |
8c18cbfb | 1258 | if (FRAMEP (internal_last_event_frame) |
3c370943 JB |
1259 | && XFRAME (internal_last_event_frame) != selected_frame) |
1260 | Fselect_frame (internal_last_event_frame, Qnil); | |
284f4730 | 1261 | #endif |
48e416d4 RS |
1262 | /* If it has changed current-menubar from previous value, |
1263 | really recompute the menubar from the value. */ | |
a646e520 RS |
1264 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1265 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1266 | call0 (Qrecompute_lucid_menubar); |
1267 | ||
71918b75 RS |
1268 | before_command_key_count = this_command_key_count; |
1269 | before_command_echo_length = echo_length (); | |
1270 | ||
d5eecefb RS |
1271 | Vthis_command = Qnil; |
1272 | real_this_command = Qnil; | |
d7437ef6 | 1273 | |
8f805655 | 1274 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1275 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1276 | Qnil, 0, 1, 1); |
8f805655 | 1277 | |
6fac1409 | 1278 | /* A filter may have run while we were reading the input. */ |
a94a4335 KH |
1279 | if (! FRAME_LIVE_P (selected_frame)) |
1280 | Fkill_emacs (Qnil); | |
6fac1409 RS |
1281 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1282 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1283 | ||
8f805655 JB |
1284 | ++num_input_keys; |
1285 | ||
284f4730 JB |
1286 | /* Now we have read a key sequence of length I, |
1287 | or else I is 0 and we found end of file. */ | |
1288 | ||
1289 | if (i == 0) /* End of file -- happens only in */ | |
1290 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1291 | /* -1 means read_key_sequence got a menu that was rejected. |
1292 | Just loop around and read another command. */ | |
1293 | if (i == -1) | |
1294 | { | |
1295 | cancel_echoing (); | |
1296 | this_command_key_count = 0; | |
6321824f | 1297 | this_single_command_key_start = 0; |
ff4b06d3 | 1298 | goto finalize; |
dcc408a0 | 1299 | } |
284f4730 | 1300 | |
284f4730 JB |
1301 | last_command_char = keybuf[i - 1]; |
1302 | ||
75c0b143 RS |
1303 | /* If the previous command tried to force a specific window-start, |
1304 | forget about that, in case this command moves point far away | |
c422836d KH |
1305 | from that position. But also throw away beg_unchanged and |
1306 | end_unchanged information in that case, so that redisplay will | |
1307 | update the whole window properly. */ | |
1308 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1309 | { | |
1310 | XWINDOW (selected_window)->force_start = Qnil; | |
1311 | beg_unchanged = end_unchanged = 0; | |
1312 | } | |
75c0b143 | 1313 | |
284f4730 JB |
1314 | cmd = read_key_sequence_cmd; |
1315 | if (!NILP (Vexecuting_macro)) | |
1316 | { | |
1317 | if (!NILP (Vquit_flag)) | |
1318 | { | |
1319 | Vexecuting_macro = Qt; | |
1320 | QUIT; /* Make some noise. */ | |
1321 | /* Will return since macro now empty. */ | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1326 | cases identified below that set no_redisplay to 1. |
1327 | (actually, there's currently no way to prevent the redisplay, | |
1328 | and no_redisplay is ignored. | |
beecf6a1 | 1329 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1330 | no_redisplay = 0; |
1331 | ||
86e5706b RS |
1332 | prev_buffer = current_buffer; |
1333 | prev_modiff = MODIFF; | |
8746da95 | 1334 | last_point_position = PT; |
18cd2eeb | 1335 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1336 | |
284f4730 JB |
1337 | /* Execute the command. */ |
1338 | ||
d5eecefb RS |
1339 | Vthis_command = cmd; |
1340 | real_this_command = cmd; | |
a98ea3f9 RS |
1341 | /* Note that the value cell will never directly contain nil |
1342 | if the symbol is a local variable. */ | |
e98a93eb | 1343 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1344 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1345 | |
d5eecefb | 1346 | if (NILP (Vthis_command)) |
284f4730 JB |
1347 | { |
1348 | /* nil means key is undefined. */ | |
1349 | bitch_at_user (); | |
c5fdd383 | 1350 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1351 | update_mode_lines = 1; |
d8bcf58e | 1352 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1353 | } |
1354 | else | |
1355 | { | |
d8bcf58e | 1356 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1357 | { |
75045dcb RS |
1358 | /* In case we jump to directly_done. */ |
1359 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1360 | ||
284f4730 JB |
1361 | /* Recognize some common commands in common situations and |
1362 | do them directly. */ | |
d5eecefb | 1363 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1364 | { |
51ad8a68 | 1365 | struct Lisp_Char_Table *dp |
284f4730 | 1366 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1367 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1368 | SET_PT (PT + 1); |
0f7a8fee | 1369 | if ((dp |
82ba47d7 | 1370 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1371 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1372 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1373 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1374 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1375 | /* To extract the case of continuation on |
1376 | wide-column characters. */ | |
8458ede6 | 1377 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1378 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1379 | >= MODIFF) | |
598ba4c7 RS |
1380 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1381 | >= OVERLAY_MODIFF) | |
284f4730 | 1382 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1383 | == PT - 1) |
284f4730 JB |
1384 | && !windows_or_buffers_changed |
1385 | && EQ (current_buffer->selective_display, Qnil) | |
1386 | && !detect_input_pending () | |
962ae636 | 1387 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1388 | && NILP (Vexecuting_macro)) |
1389 | no_redisplay = direct_output_forward_char (1); | |
1390 | goto directly_done; | |
1391 | } | |
d5eecefb | 1392 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1393 | { |
51ad8a68 | 1394 | struct Lisp_Char_Table *dp |
284f4730 | 1395 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1396 | SET_PT (PT - 1); |
aaf35234 | 1397 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1398 | if ((dp |
ca873d73 | 1399 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1400 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1401 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1402 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1403 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1404 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1405 | >= MODIFF) | |
598ba4c7 RS |
1406 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1407 | >= OVERLAY_MODIFF) | |
284f4730 | 1408 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1409 | == PT + 1) |
284f4730 JB |
1410 | && !windows_or_buffers_changed |
1411 | && EQ (current_buffer->selective_display, Qnil) | |
1412 | && !detect_input_pending () | |
962ae636 | 1413 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1414 | && NILP (Vexecuting_macro)) |
1415 | no_redisplay = direct_output_forward_char (-1); | |
1416 | goto directly_done; | |
1417 | } | |
d5eecefb | 1418 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1419 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1420 | && INTEGERP (last_command_char)) |
284f4730 | 1421 | { |
89599794 | 1422 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1423 | int value; |
284f4730 | 1424 | |
fc9cce4e RS |
1425 | if (NILP (Vexecuting_macro) |
1426 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1427 | { |
1428 | if (!nonundocount || nonundocount >= 20) | |
1429 | { | |
1430 | Fundo_boundary (); | |
1431 | nonundocount = 0; | |
1432 | } | |
1433 | nonundocount++; | |
1434 | } | |
fc9cce4e RS |
1435 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1436 | < MODIFF) | |
598ba4c7 RS |
1437 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1438 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1439 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1440 | != PT) | |
4c61f38e | 1441 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1442 | || windows_or_buffers_changed |
1443 | || !EQ (current_buffer->selective_display, Qnil) | |
1444 | || detect_input_pending () | |
962ae636 | 1445 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e RS |
1446 | || !NILP (Vexecuting_macro)); |
1447 | value = internal_self_insert (c, 0); | |
1448 | if (value) | |
1449 | lose = 1; | |
1450 | if (value == 2) | |
1451 | nonundocount = 0; | |
1452 | ||
1453 | if (!lose | |
8458ede6 | 1454 | && (PT == ZV || FETCH_BYTE (PT_BYTE) == '\n')) |
284f4730 | 1455 | { |
51ad8a68 | 1456 | struct Lisp_Char_Table *dp |
284f4730 | 1457 | = window_display_table (XWINDOW (selected_window)); |
b8d9050d | 1458 | int lose = c; |
284f4730 | 1459 | |
e3ee7487 RS |
1460 | /* Add the offset to the character, for Finsert_char. |
1461 | We pass internal_self_insert the unmodified character | |
1462 | because it itself does this offsetting. */ | |
2e9dc125 RS |
1463 | if (! NILP (current_buffer->enable_multibyte_characters)) |
1464 | lose = unibyte_char_to_multibyte (lose); | |
e3ee7487 | 1465 | |
0f7a8fee JB |
1466 | if (dp) |
1467 | { | |
9b8eb840 | 1468 | Lisp_Object obj; |
0f7a8fee | 1469 | |
9b8eb840 | 1470 | obj = DISP_CHAR_VECTOR (dp, lose); |
054c8675 | 1471 | if (NILP (obj)) |
8e91f441 RS |
1472 | { |
1473 | /* Do it only for char codes | |
1474 | that by default display as themselves. */ | |
1475 | if (lose >= 0x20 && lose <= 0x7e) | |
1476 | no_redisplay = direct_output_for_insert (lose); | |
1477 | } | |
8c18cbfb | 1478 | else if (VECTORP (obj) |
054c8675 | 1479 | && XVECTOR (obj)->size == 1 |
8c18cbfb KH |
1480 | && (obj = XVECTOR (obj)->contents[0], |
1481 | INTEGERP (obj)) | |
054c8675 RS |
1482 | /* Insist face not specified in glyph. */ |
1483 | && (XINT (obj) & ((-1) << 8)) == 0) | |
bd48a052 RS |
1484 | no_redisplay |
1485 | = direct_output_for_insert (XINT (obj)); | |
0f7a8fee JB |
1486 | } |
1487 | else | |
1488 | { | |
1489 | if (lose >= 0x20 && lose <= 0x7e) | |
1490 | no_redisplay = direct_output_for_insert (lose); | |
1491 | } | |
284f4730 JB |
1492 | } |
1493 | goto directly_done; | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | /* Here for a command that isn't executed directly */ | |
1498 | ||
1499 | nonundocount = 0; | |
d8bcf58e | 1500 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1501 | Fundo_boundary (); |
d5eecefb | 1502 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
284f4730 | 1503 | } |
a764a753 | 1504 | directly_done: ; |
75045dcb | 1505 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1506 | |
84ee6048 RS |
1507 | /* Note that the value cell will never directly contain nil |
1508 | if the symbol is a local variable. */ | |
1509 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1510 | safe_run_hooks (Qpost_command_hook); | |
1511 | ||
1512 | if (!NILP (Vdeferred_action_list)) | |
1513 | safe_run_hooks (Qdeferred_action_function); | |
1514 | ||
1515 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1516 | { | |
1517 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1518 | && NILP (Vunread_input_method_events) |
1519 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1520 | && NILP (Vexecuting_macro) |
1521 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1522 | safe_run_hooks (Qpost_command_idle_hook); | |
1523 | } | |
1524 | ||
284f4730 | 1525 | /* If there is a prefix argument, |
6c7178b9 KH |
1526 | 1) We don't want Vlast_command to be ``universal-argument'' |
1527 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1528 | 2) we want to leave echoing on so that the prefix will be |
1529 | echoed as part of this key sequence, so don't call | |
1530 | cancel_echoing, and | |
1531 | 3) we want to leave this_command_key_count non-zero, so that | |
1532 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1533 | not echo it a second time. |
1534 | ||
1535 | If the command didn't actually create a prefix arg, | |
1536 | but is merely a frame event that is transparent to prefix args, | |
1537 | then the above doesn't apply. */ | |
1538 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1539 | { |
d5eecefb RS |
1540 | current_kboard->Vlast_command = Vthis_command; |
1541 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1542 | cancel_echoing (); |
1543 | this_command_key_count = 0; | |
6321824f | 1544 | this_single_command_key_start = 0; |
284f4730 | 1545 | } |
86e5706b | 1546 | |
88ce066e | 1547 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1548 | { |
1549 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1550 | { | |
1551 | current_buffer->mark_active = Qnil; | |
1552 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1553 | } | |
1554 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1555 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1556 | } | |
ff4b06d3 KH |
1557 | |
1558 | finalize: | |
1559 | /* Install chars successfully executed in kbd macro. */ | |
1560 | ||
d8bcf58e KH |
1561 | if (!NILP (current_kboard->defining_kbd_macro) |
1562 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1563 | finalize_kbd_macro_chars (); |
1564 | ||
c5fdd383 | 1565 | #ifdef MULTI_KBOARD |
604ccd1d | 1566 | if (!was_locked) |
1e8bd3da | 1567 | any_kboard_state (); |
ff4b06d3 | 1568 | #endif |
284f4730 JB |
1569 | } |
1570 | } | |
1c9784c9 | 1571 | |
0bc3db2b RS |
1572 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1573 | ||
1574 | static Lisp_Object | |
1575 | safe_run_hooks_1 (hook) | |
1576 | Lisp_Object hook; | |
1577 | { | |
1578 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1579 | } | |
1580 | ||
1581 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1582 | ||
1583 | static Lisp_Object | |
1584 | safe_run_hooks_error (data) | |
1585 | Lisp_Object data; | |
1586 | { | |
1587 | Fset (Vinhibit_quit, Qnil); | |
1588 | } | |
1589 | ||
1c9784c9 KH |
1590 | /* If we get an error while running the hook, cause the hook variable |
1591 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1592 | to mysteriously evaporate. */ | |
0bc3db2b | 1593 | |
68f297c5 | 1594 | void |
1c9784c9 | 1595 | safe_run_hooks (hook) |
a98ea3f9 | 1596 | Lisp_Object hook; |
1c9784c9 | 1597 | { |
68553292 | 1598 | Lisp_Object value; |
1c9784c9 | 1599 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1600 | specbind (Qinhibit_quit, hook); |
1601 | ||
e702932d | 1602 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1603 | |
1604 | unbind_to (count, Qnil); | |
1605 | } | |
284f4730 JB |
1606 | \f |
1607 | /* Number of seconds between polling for input. */ | |
1608 | int polling_period; | |
1609 | ||
eb8c3be9 | 1610 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1611 | int poll_suppress_count; |
1612 | ||
36922b18 | 1613 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1614 | int polling_for_input; |
1615 | ||
36922b18 RS |
1616 | #ifdef POLL_FOR_INPUT |
1617 | ||
284f4730 JB |
1618 | /* Handle an alarm once each second and read pending input |
1619 | so as to handle a C-g if it comces in. */ | |
1620 | ||
1621 | SIGTYPE | |
91c049d4 RS |
1622 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1623 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1624 | { |
87dd9b9b RS |
1625 | /* This causes the call to start_polling at the end |
1626 | to do its job. It also arranges for a quit or error | |
1627 | from within read_avail_input to resume polling. */ | |
1628 | poll_suppress_count++; | |
9ac0d9e0 JB |
1629 | if (interrupt_input_blocked == 0 |
1630 | && !waiting_for_input) | |
1631 | read_avail_input (0); | |
87dd9b9b RS |
1632 | /* Turn on the SIGALRM handler and request another alarm. */ |
1633 | start_polling (); | |
284f4730 JB |
1634 | } |
1635 | ||
1636 | #endif | |
1637 | ||
1638 | /* Begin signals to poll for input, if they are appropriate. | |
1639 | This function is called unconditionally from various places. */ | |
1640 | ||
07a59269 | 1641 | void |
284f4730 JB |
1642 | start_polling () |
1643 | { | |
1644 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1645 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1646 | { |
1647 | poll_suppress_count--; | |
1648 | if (poll_suppress_count == 0) | |
1649 | { | |
1650 | signal (SIGALRM, input_poll_signal); | |
1651 | polling_for_input = 1; | |
1652 | alarm (polling_period); | |
1653 | } | |
1654 | } | |
1655 | #endif | |
1656 | } | |
1657 | ||
1d3195db RS |
1658 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1659 | ||
1660 | int | |
1661 | input_polling_used () | |
1662 | { | |
1663 | #ifdef POLL_FOR_INPUT | |
1664 | return read_socket_hook && !interrupt_input; | |
1665 | #else | |
1666 | return 0; | |
1667 | #endif | |
1668 | } | |
1669 | ||
284f4730 JB |
1670 | /* Turn off polling. */ |
1671 | ||
07a59269 | 1672 | void |
284f4730 JB |
1673 | stop_polling () |
1674 | { | |
1675 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1676 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1677 | { |
1678 | if (poll_suppress_count == 0) | |
1679 | { | |
1680 | polling_for_input = 0; | |
1681 | alarm (0); | |
1682 | } | |
1683 | poll_suppress_count++; | |
1684 | } | |
1685 | #endif | |
1686 | } | |
fe8aeef3 RS |
1687 | |
1688 | /* Set the value of poll_suppress_count to COUNT | |
1689 | and start or stop polling accordingly. */ | |
1690 | ||
1691 | void | |
1692 | set_poll_suppress_count (count) | |
1693 | int count; | |
1694 | { | |
1695 | #ifdef POLL_FOR_INPUT | |
1696 | if (count == 0 && poll_suppress_count != 0) | |
1697 | { | |
1698 | poll_suppress_count = 1; | |
1699 | start_polling (); | |
1700 | } | |
1701 | else if (count != 0 && poll_suppress_count == 0) | |
1702 | { | |
1703 | stop_polling (); | |
1704 | } | |
1705 | poll_suppress_count = count; | |
1706 | #endif | |
1707 | } | |
f4eef8b4 | 1708 | |
d0a57728 RS |
1709 | /* Bind polling_period to a value at least N. |
1710 | But don't decrease it. */ | |
1711 | ||
07a59269 | 1712 | void |
f4eef8b4 RS |
1713 | bind_polling_period (n) |
1714 | int n; | |
1715 | { | |
1716 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1717 | int new = polling_period; |
1718 | ||
1719 | if (n > new) | |
1720 | new = n; | |
1721 | ||
f4eef8b4 | 1722 | stop_polling (); |
d0a57728 RS |
1723 | specbind (Qpolling_period, make_number (new)); |
1724 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1725 | start_polling (); |
1726 | #endif | |
1727 | } | |
284f4730 | 1728 | \f |
6da3dd3a RS |
1729 | /* Apply the control modifier to CHARACTER. */ |
1730 | ||
faf5e407 JB |
1731 | int |
1732 | make_ctrl_char (c) | |
1733 | int c; | |
1734 | { | |
d205953b JB |
1735 | /* Save the upper bits here. */ |
1736 | int upper = c & ~0177; | |
1737 | ||
1738 | c &= 0177; | |
1739 | ||
1740 | /* Everything in the columns containing the upper-case letters | |
1741 | denotes a control character. */ | |
1742 | if (c >= 0100 && c < 0140) | |
1743 | { | |
1744 | int oc = c; | |
1745 | c &= ~0140; | |
1746 | /* Set the shift modifier for a control char | |
1747 | made from a shifted letter. But only for letters! */ | |
1748 | if (oc >= 'A' && oc <= 'Z') | |
1749 | c |= shift_modifier; | |
1750 | } | |
1751 | ||
1752 | /* The lower-case letters denote control characters too. */ | |
1753 | else if (c >= 'a' && c <= 'z') | |
1754 | c &= ~0140; | |
1755 | ||
1756 | /* Include the bits for control and shift | |
1757 | only if the basic ASCII code can't indicate them. */ | |
1758 | else if (c >= ' ') | |
1759 | c |= ctrl_modifier; | |
1760 | ||
1761 | /* Replace the high bits. */ | |
1762 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1763 | |
1764 | return c; | |
1765 | } | |
1766 | ||
1767 | ||
1768 | \f | |
284f4730 JB |
1769 | /* Input of single characters from keyboard */ |
1770 | ||
1771 | Lisp_Object print_help (); | |
1772 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1773 | static void record_char (); |
284f4730 | 1774 | |
c5fdd383 KH |
1775 | #ifdef MULTI_KBOARD |
1776 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1777 | #endif |
beecf6a1 | 1778 | |
284f4730 JB |
1779 | /* read a character from the keyboard; call the redisplay if needed */ |
1780 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1781 | -1 means do not do redisplay, but do do autosaving. | |
1782 | 1 means do both. */ | |
1783 | ||
7d6de002 RS |
1784 | /* The arguments MAPS and NMAPS are for menu prompting. |
1785 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1786 | ||
1787 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
1788 | the first event of a key sequence (or not reading a key sequence). |
1789 | If PREV_EVENT is t, that is a "magic" value that says | |
1790 | not to run input methods, but in other respects to act as if | |
1791 | not reading a key sequence. | |
7d6de002 | 1792 | |
83d68044 | 1793 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1794 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1795 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1796 | |
1797 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1798 | |
284f4730 | 1799 | Lisp_Object |
7d6de002 | 1800 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1801 | int commandflag; |
7d6de002 RS |
1802 | int nmaps; |
1803 | Lisp_Object *maps; | |
1804 | Lisp_Object prev_event; | |
1805 | int *used_mouse_menu; | |
284f4730 | 1806 | { |
7c3bc944 | 1807 | Lisp_Object c; |
284f4730 | 1808 | int count; |
410d4de9 | 1809 | jmp_buf local_getcjmp; |
284f4730 | 1810 | jmp_buf save_jump; |
a1341f75 | 1811 | int key_already_recorded = 0; |
017c7cb6 | 1812 | Lisp_Object tem, save; |
d5eecefb | 1813 | Lisp_Object echo_area_message; |
e4fe371d | 1814 | Lisp_Object also_record; |
7d18f9ae | 1815 | int reread; |
d5eecefb | 1816 | struct gcpro gcpro1, gcpro2; |
7c3bc944 | 1817 | |
e4fe371d | 1818 | also_record = Qnil; |
284f4730 | 1819 | |
71918b75 RS |
1820 | before_command_key_count = this_command_key_count; |
1821 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1822 | c = Qnil; |
d5eecefb | 1823 | echo_area_message = Qnil; |
71918b75 | 1824 | |
d5eecefb | 1825 | GCPRO2 (c, echo_area_message); |
7c3bc944 | 1826 | |
7f07d5ca RS |
1827 | retry: |
1828 | ||
7d18f9ae RS |
1829 | reread = 0; |
1830 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 1831 | { |
7d18f9ae RS |
1832 | c = XCONS (Vunread_post_input_method_events)->car; |
1833 | Vunread_post_input_method_events | |
1834 | = XCONS (Vunread_post_input_method_events)->cdr; | |
284f4730 | 1835 | |
2479e91e RS |
1836 | /* Undo what read_char_x_menu_prompt did when it unread |
1837 | additional keys returned by Fx_popup_menu. */ | |
1838 | if (CONSP (c) | |
1839 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1840 | && NILP (XCONS (c)->cdr)) | |
1841 | c = XCONS (c)->car; | |
1842 | ||
7d18f9ae RS |
1843 | reread = 1; |
1844 | goto reread_first; | |
284f4730 JB |
1845 | } |
1846 | ||
86e5706b RS |
1847 | if (unread_command_char != -1) |
1848 | { | |
18cd2eeb | 1849 | XSETINT (c, unread_command_char); |
86e5706b RS |
1850 | unread_command_char = -1; |
1851 | ||
7d18f9ae RS |
1852 | reread = 1; |
1853 | goto reread_first; | |
1854 | } | |
1855 | ||
1856 | if (CONSP (Vunread_command_events)) | |
1857 | { | |
1858 | c = XCONS (Vunread_command_events)->car; | |
1859 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
1860 | ||
1861 | /* Undo what read_char_x_menu_prompt did when it unread | |
1862 | additional keys returned by Fx_popup_menu. */ | |
1863 | if (CONSP (c) | |
1864 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1865 | && NILP (XCONS (c)->cdr)) | |
1866 | c = XCONS (c)->car; | |
1867 | ||
1868 | reread = 1; | |
1869 | goto reread_for_input_method; | |
1870 | } | |
1871 | ||
1872 | if (CONSP (Vunread_input_method_events)) | |
1873 | { | |
1874 | c = XCONS (Vunread_input_method_events)->car; | |
1875 | Vunread_input_method_events = XCONS (Vunread_input_method_events)->cdr; | |
1876 | ||
1877 | /* Undo what read_char_x_menu_prompt did when it unread | |
1878 | additional keys returned by Fx_popup_menu. */ | |
1879 | if (CONSP (c) | |
1880 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1881 | && NILP (XCONS (c)->cdr)) | |
1882 | c = XCONS (c)->car; | |
1883 | reread = 1; | |
1884 | goto reread_for_input_method; | |
86e5706b RS |
1885 | } |
1886 | ||
71918b75 RS |
1887 | /* If there is no function key translated before |
1888 | reset-this-command-lengths takes effect, forget about it. */ | |
1889 | before_command_restore_flag = 0; | |
1890 | ||
284f4730 JB |
1891 | if (!NILP (Vexecuting_macro)) |
1892 | { | |
fce33686 JB |
1893 | /* We set this to Qmacro; since that's not a frame, nobody will |
1894 | try to switch frames on us, and the selected window will | |
1895 | remain unchanged. | |
1896 | ||
1897 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1898 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1899 | real event came from. Normally, a switch-frame event selects |
1900 | internal_last_event_frame after each command is read, but | |
1901 | events read from a macro should never cause a new frame to be | |
1902 | selected. */ | |
4c52b668 | 1903 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 1904 | |
663258f2 JB |
1905 | /* Exit the macro if we are at the end. |
1906 | Also, some things replace the macro with t | |
1907 | to force an early exit. */ | |
1908 | if (EQ (Vexecuting_macro, Qt) | |
1909 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1910 | { |
18cd2eeb | 1911 | XSETINT (c, -1); |
7c3bc944 | 1912 | RETURN_UNGCPRO (c); |
284f4730 | 1913 | } |
df0f2ba1 | 1914 | |
284f4730 | 1915 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1916 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1917 | && (XINT (c) & 0x80)) |
bb9e9bed | 1918 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1919 | |
284f4730 JB |
1920 | executing_macro_index++; |
1921 | ||
1922 | goto from_macro; | |
1923 | } | |
1924 | ||
cd21b839 JB |
1925 | if (!NILP (unread_switch_frame)) |
1926 | { | |
1927 | c = unread_switch_frame; | |
1928 | unread_switch_frame = Qnil; | |
1929 | ||
1930 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 1931 | again, so we do not set `reread'. */ |
f4255cd1 | 1932 | goto reread_first; |
cd21b839 JB |
1933 | } |
1934 | ||
adc1d5c8 | 1935 | /* if redisplay was requested */ |
6e4e64a8 RS |
1936 | if (commandflag >= 0) |
1937 | { | |
adc1d5c8 RS |
1938 | /* If there is pending input, process any events which are not |
1939 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
1940 | if (input_pending |
1941 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 1942 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 1943 | |
adc1d5c8 RS |
1944 | /* Redisplay if no pending input. */ |
1945 | while (!input_pending) | |
1946 | { | |
1947 | redisplay (); | |
1948 | ||
1949 | if (!input_pending) | |
1950 | /* Normal case: no input arrived during redisplay. */ | |
1951 | break; | |
1952 | ||
1953 | /* Input arrived and pre-empted redisplay. | |
1954 | Process any events which are not user-visible. */ | |
1955 | swallow_events (0); | |
1956 | /* If that cleared input_pending, try again to redisplay. */ | |
1957 | } | |
6e4e64a8 | 1958 | } |
e9bf89a0 | 1959 | |
410d4de9 RS |
1960 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
1961 | if (echo_area_glyphs && *echo_area_glyphs | |
1fc93d49 | 1962 | && echo_area_glyphs != current_kboard->echobuf |
0c04a67e | 1963 | && ok_to_echo_at_next_pause != echo_area_glyphs) |
410d4de9 RS |
1964 | cancel_echoing (); |
1965 | else | |
1966 | /* If already echoing, continue. */ | |
1967 | echo_dash (); | |
284f4730 | 1968 | |
410d4de9 RS |
1969 | /* Try reading a character via menu prompting in the minibuf. |
1970 | Try this before the sit-for, because the sit-for | |
1971 | would do the wrong thing if we are supposed to do | |
1972 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1973 | after a mouse event so don't try a minibuf menu. */ | |
1974 | c = Qnil; | |
1975 | if (nmaps > 0 && INTERACTIVE | |
1976 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
1977 | /* Don't bring up a menu if we already have another event. */ | |
1978 | && NILP (Vunread_command_events) | |
1979 | && unread_command_char < 0 | |
4ec4ed6a | 1980 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
1981 | { |
1982 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
1983 | if (! NILP (c)) | |
1984 | { | |
1985 | key_already_recorded = 1; | |
1986 | goto non_reread_1; | |
1987 | } | |
1988 | } | |
284f4730 | 1989 | |
410d4de9 RS |
1990 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
1991 | We will do that below, temporarily for short sections of code, | |
1992 | when appropriate. local_getcjmp must be in effect | |
1993 | around any call to sit_for or kbd_buffer_get_event; | |
1994 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 1995 | |
410d4de9 | 1996 | if (_setjmp (local_getcjmp)) |
284f4730 | 1997 | { |
18cd2eeb | 1998 | XSETINT (c, quit_char); |
4c52b668 KH |
1999 | XSETFRAME (internal_last_event_frame, selected_frame); |
2000 | Vlast_event_frame = internal_last_event_frame; | |
04904c29 RS |
2001 | /* If we report the quit char as an event, |
2002 | don't do so more than once. */ | |
2003 | if (!NILP (Vinhibit_quit)) | |
2004 | Vquit_flag = Qnil; | |
284f4730 | 2005 | |
c5fdd383 | 2006 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2007 | { |
c5fdd383 KH |
2008 | KBOARD *kb = FRAME_KBOARD (selected_frame); |
2009 | if (kb != current_kboard) | |
df0f2ba1 | 2010 | { |
c5fdd383 | 2011 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2012 | /* We shouldn't get here if we were in single-kboard mode! */ |
2013 | if (single_kboard) | |
df0f2ba1 KH |
2014 | abort (); |
2015 | while (CONSP (*tailp)) | |
2016 | tailp = &XCONS (*tailp)->cdr; | |
2017 | if (!NILP (*tailp)) | |
2018 | abort (); | |
2019 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2020 | kb->kbd_queue_has_data = 1; |
2021 | current_kboard = kb; | |
ef6661f7 RS |
2022 | /* This is going to exit from read_char |
2023 | so we had better get rid of this frame's stuff. */ | |
2024 | UNGCPRO; | |
c5fdd383 | 2025 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2026 | } |
2027 | } | |
2028 | #endif | |
284f4730 JB |
2029 | goto non_reread; |
2030 | } | |
2031 | ||
d9d4c147 KH |
2032 | timer_start_idle (); |
2033 | ||
284f4730 JB |
2034 | /* If in middle of key sequence and minibuffer not active, |
2035 | start echoing if enough time elapses. */ | |
410d4de9 | 2036 | |
c5fdd383 | 2037 | if (minibuf_level == 0 && !current_kboard->immediate_echo |
6c6083a9 | 2038 | && this_command_key_count > 0 |
27203ead | 2039 | && ! noninteractive |
284f4730 | 2040 | && echo_keystrokes > 0 |
1fc93d49 | 2041 | && (echo_area_glyphs == 0 || *echo_area_glyphs == 0 |
0c04a67e | 2042 | || ok_to_echo_at_next_pause == echo_area_glyphs)) |
284f4730 JB |
2043 | { |
2044 | Lisp_Object tem0; | |
2045 | ||
7d6de002 RS |
2046 | /* After a mouse event, start echoing right away. |
2047 | This is because we are probably about to display a menu, | |
2048 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2049 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2050 | echo_now (); |
7d6de002 RS |
2051 | else |
2052 | { | |
410d4de9 RS |
2053 | save_getcjmp (save_jump); |
2054 | restore_getcjmp (local_getcjmp); | |
41365083 | 2055 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 2056 | restore_getcjmp (save_jump); |
303b5b3f RS |
2057 | if (EQ (tem0, Qt) |
2058 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2059 | echo_now (); |
7d6de002 | 2060 | } |
284f4730 JB |
2061 | } |
2062 | ||
410d4de9 | 2063 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2064 | |
2065 | if (commandflag != 0 | |
2066 | && auto_save_interval > 0 | |
c43b1734 | 2067 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2068 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2069 | { |
284f4730 | 2070 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2071 | /* Hooks can actually change some buffers in auto save. */ |
2072 | redisplay (); | |
284f4730 JB |
2073 | } |
2074 | ||
8150596a | 2075 | /* Try reading using an X menu. |
24597608 RS |
2076 | This is never confused with reading using the minibuf |
2077 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2078 | does not pass on any keymaps. */ | |
410d4de9 | 2079 | |
24597608 | 2080 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2081 | && !NILP (prev_event) |
2082 | && EVENT_HAS_PARAMETERS (prev_event) | |
2083 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
24597608 RS |
2084 | /* Don't bring up a menu if we already have another event. */ |
2085 | && NILP (Vunread_command_events) | |
b8556aee | 2086 | && unread_command_char < 0) |
8eb4d8ef RS |
2087 | { |
2088 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2089 | ||
2090 | /* Now that we have read an event, Emacs is not idle. */ | |
2091 | timer_stop_idle (); | |
2092 | ||
7c3bc944 | 2093 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2094 | } |
7d6de002 | 2095 | |
410d4de9 RS |
2096 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2097 | ||
26c1639e | 2098 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2099 | { |
2100 | int delay_level, buffer_size; | |
2101 | ||
410d4de9 RS |
2102 | /* Slow down auto saves logarithmically in size of current buffer, |
2103 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2104 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2105 | last_non_minibuf_size = Z - BEG; | |
2106 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2107 | delay_level = 0; | |
2108 | while (buffer_size > 64) | |
2109 | delay_level++, buffer_size -= buffer_size >> 2; | |
2110 | if (delay_level < 4) delay_level = 4; | |
2111 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2112 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2113 | ||
2114 | /* Auto save if enough time goes by without input. */ | |
2115 | if (commandflag != 0 | |
c43b1734 | 2116 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2117 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2118 | && XINT (Vauto_save_timeout) > 0) |
2119 | { | |
2120 | Lisp_Object tem0; | |
410d4de9 RS |
2121 | |
2122 | save_getcjmp (save_jump); | |
2123 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2124 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2125 | 0, 1, 1, 0); |
410d4de9 RS |
2126 | restore_getcjmp (save_jump); |
2127 | ||
303b5b3f RS |
2128 | if (EQ (tem0, Qt) |
2129 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2130 | { |
7d6de002 | 2131 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2132 | |
2133 | /* If we have auto-saved and there is still no input | |
2134 | available, garbage collect if there has been enough | |
2135 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2136 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2137 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2138 | Fgarbage_collect (); |
410d4de9 | 2139 | |
ef8fd672 | 2140 | redisplay (); |
7d6de002 RS |
2141 | } |
2142 | } | |
2143 | } | |
284f4730 | 2144 | |
303b5b3f RS |
2145 | /* If this has become non-nil here, it has been set by a timer |
2146 | or sentinel or filter. */ | |
2147 | if (CONSP (Vunread_command_events)) | |
2148 | { | |
2149 | c = XCONS (Vunread_command_events)->car; | |
2150 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2151 | } | |
2152 | ||
410d4de9 RS |
2153 | /* Read something from current KBOARD's side queue, if possible. */ |
2154 | ||
beecf6a1 | 2155 | if (NILP (c)) |
1e12dd87 | 2156 | { |
c5fdd383 | 2157 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2158 | { |
c5fdd383 | 2159 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2160 | abort (); |
c5fdd383 KH |
2161 | c = XCONS (current_kboard->kbd_queue)->car; |
2162 | current_kboard->kbd_queue | |
2163 | = XCONS (current_kboard->kbd_queue)->cdr; | |
2164 | if (NILP (current_kboard->kbd_queue)) | |
2165 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2166 | input_pending = readable_events (0); |
4c52b668 KH |
2167 | if (EVENT_HAS_PARAMETERS (c) |
2168 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
2169 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
2170 | Vlast_event_frame = internal_last_event_frame; | |
beecf6a1 | 2171 | } |
1e8bd3da RS |
2172 | } |
2173 | ||
c5fdd383 | 2174 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2175 | /* If current_kboard's side queue is empty check the other kboards. |
2176 | If one of them has data that we have not yet seen here, | |
2177 | switch to it and process the data waiting for it. | |
2178 | ||
2179 | Note: if the events queued up for another kboard | |
2180 | have already been seen here, and therefore are not a complete command, | |
2181 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2182 | That's to avoid an infinite loop switching between kboards here. */ | |
2183 | if (NILP (c) && !single_kboard) | |
2184 | { | |
2185 | KBOARD *kb; | |
2186 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2187 | if (kb->kbd_queue_has_data) | |
2188 | { | |
2189 | current_kboard = kb; | |
ef6661f7 RS |
2190 | /* This is going to exit from read_char |
2191 | so we had better get rid of this frame's stuff. */ | |
2192 | UNGCPRO; | |
1e8bd3da RS |
2193 | longjmp (wrong_kboard_jmpbuf, 1); |
2194 | } | |
2195 | } | |
df0f2ba1 KH |
2196 | #endif |
2197 | ||
410d4de9 RS |
2198 | wrong_kboard: |
2199 | ||
2200 | stop_polling (); | |
2201 | ||
1e8bd3da RS |
2202 | /* Finally, we read from the main queue, |
2203 | and if that gives us something we can't use yet, we put it on the | |
2204 | appropriate side queue and try again. */ | |
410d4de9 | 2205 | |
1e8bd3da RS |
2206 | if (NILP (c)) |
2207 | { | |
2208 | KBOARD *kb; | |
2209 | ||
1e8bd3da | 2210 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2211 | save_getcjmp (save_jump); |
2212 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2213 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2214 | restore_getcjmp (save_jump); |
2215 | ||
c5fdd383 | 2216 | #ifdef MULTI_KBOARD |
410d4de9 | 2217 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2218 | { |
2219 | Lisp_Object *tailp = &kb->kbd_queue; | |
2220 | while (CONSP (*tailp)) | |
2221 | tailp = &XCONS (*tailp)->cdr; | |
2222 | if (!NILP (*tailp)) | |
2223 | abort (); | |
2224 | *tailp = Fcons (c, Qnil); | |
2225 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2226 | c = Qnil; |
1e8bd3da RS |
2227 | if (single_kboard) |
2228 | goto wrong_kboard; | |
2229 | current_kboard = kb; | |
ef6661f7 RS |
2230 | /* This is going to exit from read_char |
2231 | so we had better get rid of this frame's stuff. */ | |
2232 | UNGCPRO; | |
1e8bd3da | 2233 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2234 | } |
1e8bd3da | 2235 | #endif |
beecf6a1 | 2236 | } |
1e8bd3da | 2237 | |
284f4730 | 2238 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2239 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2240 | Fkill_emacs (make_number (1)); |
2241 | ||
8c18cbfb | 2242 | if (INTEGERP (c)) |
80645119 JB |
2243 | { |
2244 | /* Add in any extra modifiers, where appropriate. */ | |
2245 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2246 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2247 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2248 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2249 | |
2250 | /* Transfer any other modifier bits directly from | |
2251 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2252 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2253 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2254 | } |
9fa4395d | 2255 | |
284f4730 JB |
2256 | non_reread: |
2257 | ||
2fb9049e | 2258 | timer_stop_idle (); |
d9d4c147 | 2259 | |
284f4730 JB |
2260 | start_polling (); |
2261 | ||
410d4de9 RS |
2262 | if (NILP (c)) |
2263 | { | |
2264 | if (commandflag >= 0 | |
4ec4ed6a | 2265 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2266 | redisplay (); |
2267 | ||
2268 | goto wrong_kboard; | |
2269 | } | |
2270 | ||
2271 | non_reread_1: | |
2272 | ||
dfd11da7 | 2273 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2274 | so don't show them to the user. |
2275 | Also, don't record a key if we already did. */ | |
2276 | if (BUFFERP (c) || key_already_recorded) | |
2277 | RETURN_UNGCPRO (c); | |
a1341f75 | 2278 | |
7f07d5ca RS |
2279 | /* Process special events within read_char |
2280 | and loop around to read another event. */ | |
017c7cb6 RS |
2281 | save = Vquit_flag; |
2282 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2283 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2284 | c, 0, 0), 1); | |
017c7cb6 | 2285 | Vquit_flag = save; |
7f07d5ca RS |
2286 | |
2287 | if (!NILP (tem)) | |
2288 | { | |
ba8dfba8 RS |
2289 | int was_locked = single_kboard; |
2290 | ||
7f07d5ca | 2291 | last_input_char = c; |
158f7532 | 2292 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2293 | |
2294 | /* Resume allowing input from any kboard, if that was true before. */ | |
2295 | if (!was_locked) | |
2296 | any_kboard_state (); | |
2297 | ||
7f07d5ca RS |
2298 | goto retry; |
2299 | } | |
2300 | ||
284f4730 | 2301 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2302 | if (INTEGERP (c)) |
284f4730 JB |
2303 | { |
2304 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2305 | if (XINT (c) == -1) |
7c3bc944 | 2306 | RETURN_UNGCPRO (c); |
284f4730 | 2307 | |
301738ed RS |
2308 | if ((STRINGP (Vkeyboard_translate_table) |
2309 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2310 | || (VECTORP (Vkeyboard_translate_table) | |
2311 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2312 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2313 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2314 | { |
2315 | Lisp_Object d; | |
2316 | d = Faref (Vkeyboard_translate_table, c); | |
2317 | /* nil in keyboard-translate-table means no translation. */ | |
2318 | if (!NILP (d)) | |
2319 | c = d; | |
2320 | } | |
284f4730 JB |
2321 | } |
2322 | ||
e4fe371d RS |
2323 | /* If this event is a mouse click in the menu bar, |
2324 | return just menu-bar for now. Modify the mouse click event | |
2325 | so we won't do this twice, then queue it up. */ | |
2326 | if (EVENT_HAS_PARAMETERS (c) | |
2327 | && CONSP (XCONS (c)->cdr) | |
2328 | && CONSP (EVENT_START (c)) | |
2329 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2330 | { |
e4fe371d | 2331 | Lisp_Object posn; |
284f4730 | 2332 | |
e4fe371d RS |
2333 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2334 | /* Handle menu-bar events: | |
2335 | insert the dummy prefix event `menu-bar'. */ | |
2336 | if (EQ (posn, Qmenu_bar)) | |
2337 | { | |
2338 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2339 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2340 | |
e4fe371d RS |
2341 | also_record = c; |
2342 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2343 | c = posn; | |
284f4730 | 2344 | } |
284f4730 JB |
2345 | } |
2346 | ||
7d18f9ae RS |
2347 | /* Store these characters into recent_keys, the dribble file if any, |
2348 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2349 | record_char (c); |
2350 | if (! NILP (also_record)) | |
2351 | record_char (also_record); | |
51172b6d | 2352 | |
d5eecefb RS |
2353 | /* Wipe the echo area. |
2354 | But first, if we are about to use an input method, | |
2355 | save the echo area contents for it to refer to. */ | |
2356 | if (INTEGERP (c) | |
2357 | && ! NILP (Vinput_method_function) | |
2358 | && (unsigned) XINT (c) >= ' ' | |
2359 | && (unsigned) XINT (c) < 127) | |
2360 | Vinput_method_previous_message = echo_area_message = Fcurrent_message (); | |
2361 | ||
2362 | /* Now wipe the echo area. */ | |
2363 | if (echo_area_glyphs) | |
2364 | safe_run_hooks (Qecho_area_clear_hook); | |
2365 | echo_area_glyphs = 0; | |
2366 | ||
7d18f9ae | 2367 | reread_for_input_method: |
284f4730 | 2368 | from_macro: |
7d18f9ae | 2369 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2370 | if (INTEGERP (c) |
2371 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2372 | /* Don't run the input method within a key sequence, |
2373 | after the first event of the key sequence. */ | |
2374 | && NILP (prev_event) | |
d5eecefb RS |
2375 | && (unsigned) XINT (c) >= ' ' |
2376 | && (unsigned) XINT (c) < 127) | |
2377 | { | |
2378 | Lisp_Object keys; | |
6e5742a0 | 2379 | int key_count; |
d5eecefb | 2380 | struct gcpro gcpro1; |
b638f328 | 2381 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2382 | |
6e5742a0 RS |
2383 | /* Save the echo status. */ |
2384 | int saved_immediate_echo = current_kboard->immediate_echo; | |
2385 | char *saved_ok_to_echo = ok_to_echo_at_next_pause; | |
2386 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; | |
2387 | ||
2388 | if (before_command_restore_flag) | |
2389 | { | |
2390 | this_command_key_count = before_command_key_count_1; | |
2391 | if (this_command_key_count < this_single_command_key_start) | |
2392 | this_single_command_key_start = this_command_key_count; | |
2393 | echo_truncate (before_command_echo_length_1); | |
2394 | before_command_restore_flag = 0; | |
2395 | } | |
2396 | ||
2397 | /* Save the this_command_keys status. */ | |
2398 | key_count = this_command_key_count; | |
2399 | ||
2400 | if (key_count > 0) | |
2401 | keys = Fcopy_sequence (this_command_keys); | |
2402 | else | |
2403 | keys = Qnil; | |
d5eecefb | 2404 | GCPRO1 (keys); |
6e5742a0 RS |
2405 | |
2406 | /* Clear out this_command_keys. */ | |
2407 | this_command_key_count = 0; | |
2408 | ||
2409 | /* Now wipe the echo area. */ | |
2410 | if (echo_area_glyphs) | |
2411 | safe_run_hooks (Qecho_area_clear_hook); | |
2412 | echo_area_glyphs = 0; | |
2413 | echo_truncate (0); | |
2414 | ||
b638f328 RS |
2415 | /* If we are not reading a key sequence, |
2416 | never use the echo area. */ | |
2417 | if (maps == 0) | |
2418 | { | |
b638f328 RS |
2419 | specbind (Qinput_method_use_echo_area, Qt); |
2420 | } | |
2421 | ||
6e5742a0 | 2422 | /* Call the input method. */ |
d5eecefb | 2423 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2424 | |
2425 | tem = unbind_to (count, tem); | |
2426 | ||
6e5742a0 RS |
2427 | /* Restore the saved echoing state |
2428 | and this_command_keys state. */ | |
2429 | this_command_key_count = key_count; | |
2430 | if (key_count > 0) | |
2431 | this_command_keys = keys; | |
2432 | ||
2433 | cancel_echoing (); | |
2434 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2435 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2436 | if (saved_immediate_echo) | |
2437 | echo_now (); | |
2438 | ||
d5eecefb | 2439 | UNGCPRO; |
6e5742a0 | 2440 | |
d5eecefb RS |
2441 | /* The input method can return no events. */ |
2442 | if (! CONSP (tem)) | |
7d18f9ae | 2443 | { |
d5eecefb | 2444 | /* Bring back the previous message, if any. */ |
6e5742a0 | 2445 | if (! NILP (echo_area_message)) |
d5eecefb | 2446 | message_with_string ("%s", echo_area_message, 0); |
d5eecefb | 2447 | goto retry; |
7d18f9ae | 2448 | } |
d5eecefb RS |
2449 | /* It returned one event or more. */ |
2450 | c = XCONS (tem)->car; | |
2451 | Vunread_post_input_method_events | |
2452 | = nconc2 (XCONS (tem)->cdr, Vunread_post_input_method_events); | |
7d18f9ae | 2453 | } |
7c3bc944 | 2454 | |
7d18f9ae | 2455 | reread_first: |
284f4730 | 2456 | |
7d18f9ae | 2457 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2458 | { |
7d18f9ae RS |
2459 | before_command_key_count = this_command_key_count; |
2460 | before_command_echo_length = echo_length (); | |
2461 | ||
2462 | /* Don't echo mouse motion events. */ | |
2463 | if (echo_keystrokes | |
2464 | && ! (EVENT_HAS_PARAMETERS (c) | |
2465 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2466 | { | |
2467 | echo_char (c); | |
2468 | if (! NILP (also_record)) | |
2469 | echo_char (also_record); | |
2470 | /* Once we reread a character, echoing can happen | |
2471 | the next time we pause to read a new one. */ | |
2472 | ok_to_echo_at_next_pause = echo_area_glyphs; | |
2473 | } | |
2474 | ||
2475 | /* Record this character as part of the current key. */ | |
2476 | add_command_key (c); | |
e4fe371d | 2477 | if (! NILP (also_record)) |
7d18f9ae | 2478 | add_command_key (also_record); |
e4fe371d | 2479 | } |
b8556aee | 2480 | |
284f4730 | 2481 | last_input_char = c; |
c43b1734 | 2482 | num_input_events++; |
284f4730 JB |
2483 | |
2484 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2485 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2486 | { |
2487 | Lisp_Object tem0; | |
2488 | count = specpdl_ptr - specpdl; | |
2489 | ||
2490 | record_unwind_protect (Fset_window_configuration, | |
2491 | Fcurrent_window_configuration (Qnil)); | |
2492 | ||
2493 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2494 | if (STRINGP (tem0)) |
284f4730 JB |
2495 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2496 | ||
2497 | cancel_echoing (); | |
3cb81011 KH |
2498 | do |
2499 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2500 | while (BUFFERP (c)); |
ff11dfa1 | 2501 | /* Remove the help from the frame */ |
284f4730 | 2502 | unbind_to (count, Qnil); |
410d4de9 | 2503 | |
284f4730 JB |
2504 | redisplay (); |
2505 | if (EQ (c, make_number (040))) | |
2506 | { | |
2507 | cancel_echoing (); | |
3cb81011 KH |
2508 | do |
2509 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2510 | while (BUFFERP (c)); |
284f4730 JB |
2511 | } |
2512 | } | |
2513 | ||
7c3bc944 | 2514 | RETURN_UNGCPRO (c); |
284f4730 JB |
2515 | } |
2516 | ||
8eb4d8ef RS |
2517 | /* Record a key that came from a mouse menu. |
2518 | Record it for echoing, for this-command-keys, and so on. */ | |
2519 | ||
2520 | static void | |
2521 | record_menu_key (c) | |
2522 | Lisp_Object c; | |
2523 | { | |
2524 | /* Wipe the echo area. */ | |
2525 | echo_area_glyphs = 0; | |
2526 | ||
2527 | record_char (c); | |
2528 | ||
2529 | before_command_key_count = this_command_key_count; | |
2530 | before_command_echo_length = echo_length (); | |
2531 | ||
2532 | /* Don't echo mouse motion events. */ | |
2533 | if (echo_keystrokes) | |
2534 | { | |
2535 | echo_char (c); | |
2536 | ||
2537 | /* Once we reread a character, echoing can happen | |
2538 | the next time we pause to read a new one. */ | |
2539 | ok_to_echo_at_next_pause = 0; | |
2540 | } | |
2541 | ||
2542 | /* Record this character as part of the current key. */ | |
2543 | add_command_key (c); | |
2544 | ||
2545 | /* Re-reading in the middle of a command */ | |
2546 | last_input_char = c; | |
c43b1734 | 2547 | num_input_events++; |
8eb4d8ef RS |
2548 | } |
2549 | ||
ecb7cb34 KH |
2550 | /* Return 1 if should recognize C as "the help character". */ |
2551 | ||
2552 | int | |
2553 | help_char_p (c) | |
2554 | Lisp_Object c; | |
2555 | { | |
2556 | Lisp_Object tail; | |
2557 | ||
2558 | if (EQ (c, Vhelp_char)) | |
2559 | return 1; | |
2560 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2561 | if (EQ (c, XCONS (tail)->car)) | |
2562 | return 1; | |
2563 | return 0; | |
2564 | } | |
2565 | ||
e4fe371d RS |
2566 | /* Record the input event C in various ways. */ |
2567 | ||
2568 | static void | |
2569 | record_char (c) | |
2570 | Lisp_Object c; | |
2571 | { | |
2572 | total_keys++; | |
2573 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2574 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2575 | recent_keys_index = 0; | |
2576 | ||
2577 | /* Write c to the dribble file. If c is a lispy event, write | |
2578 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2579 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2580 | if (dribble) | |
2581 | { | |
2582 | if (INTEGERP (c)) | |
2583 | { | |
2584 | if (XUINT (c) < 0x100) | |
2585 | putc (XINT (c), dribble); | |
2586 | else | |
6de34814 | 2587 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2588 | } |
2589 | else | |
2590 | { | |
2591 | Lisp_Object dribblee; | |
2592 | ||
2593 | /* If it's a structured event, take the event header. */ | |
2594 | dribblee = EVENT_HEAD (c); | |
2595 | ||
2596 | if (SYMBOLP (dribblee)) | |
2597 | { | |
2598 | putc ('<', dribble); | |
2599 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 2600 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
2601 | dribble); |
2602 | putc ('>', dribble); | |
2603 | } | |
2604 | } | |
2605 | ||
2606 | fflush (dribble); | |
2607 | } | |
2608 | ||
2609 | store_kbd_macro_char (c); | |
2610 | ||
c43b1734 | 2611 | num_nonmacro_input_events++; |
e4fe371d RS |
2612 | } |
2613 | ||
284f4730 JB |
2614 | Lisp_Object |
2615 | print_help (object) | |
2616 | Lisp_Object object; | |
2617 | { | |
622de3e9 | 2618 | struct buffer *old = current_buffer; |
284f4730 | 2619 | Fprinc (object, Qnil); |
622de3e9 KH |
2620 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2621 | call0 (intern ("help-mode")); | |
2622 | set_buffer_internal (old); | |
284f4730 JB |
2623 | return Qnil; |
2624 | } | |
2625 | ||
2626 | /* Copy out or in the info on where C-g should throw to. | |
2627 | This is used when running Lisp code from within get_char, | |
2628 | in case get_char is called recursively. | |
2629 | See read_process_output. */ | |
2630 | ||
dfcf069d | 2631 | static void |
284f4730 JB |
2632 | save_getcjmp (temp) |
2633 | jmp_buf temp; | |
2634 | { | |
2635 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2636 | } | |
2637 | ||
dfcf069d | 2638 | static void |
284f4730 JB |
2639 | restore_getcjmp (temp) |
2640 | jmp_buf temp; | |
2641 | { | |
2642 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2643 | } | |
284f4730 | 2644 | \f |
2eb6bfbe RM |
2645 | #ifdef HAVE_MOUSE |
2646 | ||
284f4730 JB |
2647 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2648 | of this function. */ | |
a9d77f1f | 2649 | |
284f4730 JB |
2650 | static Lisp_Object |
2651 | tracking_off (old_value) | |
2652 | Lisp_Object old_value; | |
2653 | { | |
71edead1 RS |
2654 | do_mouse_tracking = old_value; |
2655 | if (NILP (old_value)) | |
284f4730 | 2656 | { |
284f4730 JB |
2657 | /* Redisplay may have been preempted because there was input |
2658 | available, and it assumes it will be called again after the | |
2659 | input has been processed. If the only input available was | |
2660 | the sort that we have just disabled, then we need to call | |
2661 | redisplay. */ | |
d9d4c147 | 2662 | if (!readable_events (1)) |
284f4730 JB |
2663 | { |
2664 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2665 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2666 | } |
2667 | } | |
2668 | } | |
2669 | ||
2670 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2671 | "Evaluate BODY with mouse movement events enabled.\n\ |
2672 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2673 | you can read with `read-event'.\n\ | |
2674 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2675 | (args) |
2676 | Lisp_Object args; | |
2677 | { | |
2678 | int count = specpdl_ptr - specpdl; | |
2679 | Lisp_Object val; | |
2680 | ||
a9d77f1f | 2681 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2682 | |
f3253854 | 2683 | do_mouse_tracking = Qt; |
df0f2ba1 | 2684 | |
284f4730 JB |
2685 | val = Fprogn (args); |
2686 | return unbind_to (count, val); | |
2687 | } | |
2eb6bfbe | 2688 | |
f3253854 KH |
2689 | /* If mouse has moved on some frame, return one of those frames. |
2690 | Return 0 otherwise. */ | |
2691 | ||
2692 | static FRAME_PTR | |
2693 | some_mouse_moved () | |
2694 | { | |
2695 | Lisp_Object tail, frame; | |
2696 | ||
2697 | FOR_EACH_FRAME (tail, frame) | |
2698 | { | |
2699 | if (XFRAME (frame)->mouse_moved) | |
2700 | return XFRAME (frame); | |
2701 | } | |
2702 | ||
2703 | return 0; | |
2704 | } | |
2705 | ||
2eb6bfbe | 2706 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2707 | \f |
2708 | /* Low level keyboard/mouse input. | |
2709 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2710 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2711 | |
2712 | /* Return true iff there are any events in the queue that read-char | |
2713 | would return. If this returns false, a read-char would block. */ | |
2714 | static int | |
d9d4c147 KH |
2715 | readable_events (do_timers_now) |
2716 | int do_timers_now; | |
a612e298 | 2717 | { |
4ec4ed6a RS |
2718 | if (do_timers_now) |
2719 | timer_check (do_timers_now); | |
2720 | ||
beecf6a1 KH |
2721 | if (kbd_fetch_ptr != kbd_store_ptr) |
2722 | return 1; | |
2723 | #ifdef HAVE_MOUSE | |
f3253854 | 2724 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2725 | return 1; |
2726 | #endif | |
1e8bd3da | 2727 | if (single_kboard) |
4c52b668 | 2728 | { |
c5fdd383 | 2729 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2730 | return 1; |
2731 | } | |
2732 | else | |
2733 | { | |
c5fdd383 KH |
2734 | KBOARD *kb; |
2735 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2736 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2737 | return 1; |
2738 | } | |
beecf6a1 | 2739 | return 0; |
a612e298 RS |
2740 | } |
2741 | ||
2742 | /* Set this for debugging, to have a way to get out */ | |
2743 | int stop_character; | |
284f4730 | 2744 | |
c5fdd383 KH |
2745 | #ifdef MULTI_KBOARD |
2746 | static KBOARD * | |
2747 | event_to_kboard (event) | |
5798cf15 KH |
2748 | struct input_event *event; |
2749 | { | |
2750 | Lisp_Object frame; | |
2751 | frame = event->frame_or_window; | |
2752 | if (CONSP (frame)) | |
2753 | frame = XCONS (frame)->car; | |
2754 | else if (WINDOWP (frame)) | |
2755 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2756 | ||
2757 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2758 | For now, just ignore the problem. |
2759 | Also ignore dead frames here. */ | |
2760 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2761 | return 0; |
2762 | else | |
c5fdd383 | 2763 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2764 | } |
2765 | #endif | |
2766 | ||
284f4730 JB |
2767 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2768 | ||
2769 | void | |
2770 | kbd_buffer_store_event (event) | |
2771 | register struct input_event *event; | |
2772 | { | |
2773 | if (event->kind == no_event) | |
2774 | abort (); | |
2775 | ||
2776 | if (event->kind == ascii_keystroke) | |
2777 | { | |
e9bf89a0 | 2778 | register int c = event->code & 0377; |
284f4730 | 2779 | |
faf5e407 JB |
2780 | if (event->modifiers & ctrl_modifier) |
2781 | c = make_ctrl_char (c); | |
2782 | ||
9fd7d808 RS |
2783 | c |= (event->modifiers |
2784 | & (meta_modifier | alt_modifier | |
2785 | | hyper_modifier | super_modifier)); | |
2786 | ||
86e5706b | 2787 | if (c == quit_char) |
284f4730 | 2788 | { |
3e51c7b7 | 2789 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2790 | #ifdef MULTI_KBOARD |
2791 | KBOARD *kb; | |
5798cf15 KH |
2792 | struct input_event *sp; |
2793 | ||
1e8bd3da | 2794 | if (single_kboard |
c5fdd383 KH |
2795 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2796 | kb != current_kboard)) | |
5798cf15 | 2797 | { |
c5fdd383 | 2798 | kb->kbd_queue |
5798cf15 KH |
2799 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2800 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2801 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2802 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2803 | { | |
2804 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2805 | sp = kbd_buffer; | |
2806 | ||
c5fdd383 | 2807 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2808 | { |
2809 | sp->kind = no_event; | |
2810 | sp->frame_or_window = Qnil; | |
2811 | } | |
2812 | } | |
2813 | return; | |
2814 | } | |
2815 | #endif | |
3e51c7b7 | 2816 | |
284f4730 | 2817 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2818 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2819 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2820 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2821 | { |
9b8eb840 | 2822 | Lisp_Object focus; |
4bb994d1 | 2823 | |
9b8eb840 | 2824 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2825 | if (NILP (focus)) |
beecf6a1 | 2826 | focus = event->frame_or_window; |
4c52b668 KH |
2827 | internal_last_event_frame = focus; |
2828 | Vlast_event_frame = focus; | |
4bb994d1 | 2829 | } |
3e51c7b7 | 2830 | |
ffd56f97 | 2831 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2832 | interrupt_signal (); |
2833 | return; | |
2834 | } | |
2835 | ||
2836 | if (c && c == stop_character) | |
2837 | { | |
2838 | sys_suspend (); | |
2839 | return; | |
2840 | } | |
284f4730 | 2841 | } |
3fe8e9a2 RS |
2842 | /* Don't insert two buffer_switch_event's in a row. |
2843 | Just ignore the second one. */ | |
2844 | else if (event->kind == buffer_switch_event | |
2845 | && kbd_fetch_ptr != kbd_store_ptr | |
2846 | && kbd_store_ptr->kind == buffer_switch_event) | |
2847 | return; | |
284f4730 | 2848 | |
beecf6a1 KH |
2849 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2850 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2851 | |
2852 | /* Don't let the very last slot in the buffer become full, | |
2853 | since that would make the two pointers equal, | |
2854 | and that is indistinguishable from an empty buffer. | |
2855 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2856 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2857 | { |
beecf6a1 | 2858 | volatile struct input_event *sp = kbd_store_ptr; |
612b78ef | 2859 | sp->kind = event->kind; |
27203ead RS |
2860 | if (event->kind == selection_request_event) |
2861 | { | |
2862 | /* We must not use the ordinary copying code for this case, | |
2863 | since `part' is an enum and copying it might not copy enough | |
2864 | in this case. */ | |
612b78ef | 2865 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2866 | } |
2867 | else | |
2868 | { | |
612b78ef KH |
2869 | sp->code = event->code; |
2870 | sp->part = event->part; | |
2871 | sp->frame_or_window = event->frame_or_window; | |
2872 | sp->modifiers = event->modifiers; | |
2873 | sp->x = event->x; | |
2874 | sp->y = event->y; | |
2875 | sp->timestamp = event->timestamp; | |
27203ead | 2876 | } |
beecf6a1 KH |
2877 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2878 | - kbd_buffer] | |
7b4aedb9 | 2879 | = event->frame_or_window); |
284f4730 | 2880 | |
beecf6a1 | 2881 | kbd_store_ptr++; |
284f4730 JB |
2882 | } |
2883 | } | |
a612e298 | 2884 | \f |
07de30b9 GV |
2885 | /* Discard any mouse events in the event buffer by setting them to |
2886 | no_event. */ | |
2887 | void | |
2888 | discard_mouse_events () | |
2889 | { | |
2890 | struct input_event *sp; | |
2891 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
2892 | { | |
2893 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2894 | sp = kbd_buffer; | |
2895 | ||
2896 | if (sp->kind == mouse_click | |
2897 | #ifdef WINDOWSNT | |
2898 | || sp->kind == w32_scroll_bar_click | |
2899 | #endif | |
2900 | || sp->kind == scroll_bar_click) | |
2901 | { | |
2902 | sp->kind = no_event; | |
2903 | } | |
2904 | } | |
2905 | } | |
2906 | \f | |
a612e298 RS |
2907 | /* Read one event from the event buffer, waiting if necessary. |
2908 | The value is a Lisp object representing the event. | |
2909 | The value is nil for an event that should be ignored, | |
2910 | or that was handled here. | |
2911 | We always read and discard one event. */ | |
284f4730 JB |
2912 | |
2913 | static Lisp_Object | |
83d68044 | 2914 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2915 | KBOARD **kbp; |
83d68044 | 2916 | int *used_mouse_menu; |
284f4730 JB |
2917 | { |
2918 | register int c; | |
2919 | Lisp_Object obj; | |
c04cbc3b | 2920 | EMACS_TIME next_timer_delay; |
284f4730 JB |
2921 | |
2922 | if (noninteractive) | |
2923 | { | |
2924 | c = getchar (); | |
18cd2eeb | 2925 | XSETINT (obj, c); |
f5b56972 | 2926 | *kbp = current_kboard; |
284f4730 JB |
2927 | return obj; |
2928 | } | |
2929 | ||
2930 | /* Wait until there is input available. */ | |
2931 | for (;;) | |
2932 | { | |
beecf6a1 KH |
2933 | if (kbd_fetch_ptr != kbd_store_ptr) |
2934 | break; | |
2935 | #ifdef HAVE_MOUSE | |
f3253854 | 2936 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2937 | break; |
beecf6a1 | 2938 | #endif |
284f4730 JB |
2939 | |
2940 | /* If the quit flag is set, then read_char will return | |
2941 | quit_char, so that counts as "available input." */ | |
2942 | if (!NILP (Vquit_flag)) | |
2943 | quit_throw_to_read_char (); | |
2944 | ||
2945 | /* One way or another, wait until input is available; then, if | |
2946 | interrupt handlers have not read it, read it now. */ | |
2947 | ||
2948 | #ifdef OLDVMS | |
2949 | wait_for_kbd_input (); | |
2950 | #else | |
2951 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
2952 | #ifdef SIGIO | |
2953 | gobble_input (0); | |
2954 | #endif /* SIGIO */ | |
beecf6a1 KH |
2955 | if (kbd_fetch_ptr != kbd_store_ptr) |
2956 | break; | |
2957 | #ifdef HAVE_MOUSE | |
f3253854 | 2958 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2959 | break; |
2960 | #endif | |
2961 | { | |
2962 | Lisp_Object minus_one; | |
f76475ad | 2963 | |
beecf6a1 | 2964 | XSETINT (minus_one, -1); |
d9d4c147 | 2965 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 2966 | |
beecf6a1 KH |
2967 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
2968 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
2969 | read_avail_input (1); | |
2970 | } | |
284f4730 JB |
2971 | #endif /* not VMS */ |
2972 | } | |
2973 | ||
303b5b3f RS |
2974 | if (CONSP (Vunread_command_events)) |
2975 | { | |
2976 | Lisp_Object first; | |
2977 | first = XCONS (Vunread_command_events)->car; | |
2978 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2979 | *kbp = current_kboard; | |
2980 | return first; | |
2981 | } | |
2982 | ||
284f4730 JB |
2983 | /* At this point, we know that there is a readable event available |
2984 | somewhere. If the event queue is empty, then there must be a | |
2985 | mouse movement enabled and available. */ | |
beecf6a1 | 2986 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 2987 | { |
cd21b839 | 2988 | struct input_event *event; |
3e51c7b7 | 2989 | |
beecf6a1 KH |
2990 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
2991 | ? kbd_fetch_ptr | |
2992 | : kbd_buffer); | |
3e51c7b7 | 2993 | |
cd21b839 | 2994 | last_event_timestamp = event->timestamp; |
cd21b839 | 2995 | |
c5fdd383 KH |
2996 | #ifdef MULTI_KBOARD |
2997 | *kbp = event_to_kboard (event); | |
2998 | if (*kbp == 0) | |
2999 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3000 | #else |
c5fdd383 | 3001 | *kbp = &the_only_kboard; |
5798cf15 | 3002 | #endif |
beecf6a1 | 3003 | |
4bb994d1 JB |
3004 | obj = Qnil; |
3005 | ||
48e416d4 | 3006 | /* These two kinds of events get special handling |
a612e298 RS |
3007 | and don't actually appear to the command loop. |
3008 | We return nil for them. */ | |
48e416d4 RS |
3009 | if (event->kind == selection_request_event) |
3010 | { | |
598a9fa7 | 3011 | #ifdef HAVE_X11 |
1e8bd3da RS |
3012 | struct input_event copy; |
3013 | ||
4581e928 RS |
3014 | /* Remove it from the buffer before processing it, |
3015 | since otherwise swallow_events will see it | |
3016 | and process it again. */ | |
1e8bd3da | 3017 | copy = *event; |
beecf6a1 | 3018 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3019 | input_pending = readable_events (0); |
4581e928 | 3020 | x_handle_selection_request (©); |
598a9fa7 JB |
3021 | #else |
3022 | /* We're getting selection request events, but we don't have | |
3023 | a window system. */ | |
3024 | abort (); | |
3025 | #endif | |
48e416d4 RS |
3026 | } |
3027 | ||
1e12dd87 | 3028 | else if (event->kind == selection_clear_event) |
48e416d4 | 3029 | { |
598a9fa7 | 3030 | #ifdef HAVE_X11 |
e0301c07 RS |
3031 | struct input_event copy; |
3032 | ||
3033 | /* Remove it from the buffer before processing it. */ | |
3034 | copy = *event; | |
beecf6a1 | 3035 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3036 | input_pending = readable_events (0); |
90c2bb0c | 3037 | x_handle_selection_clear (©); |
598a9fa7 JB |
3038 | #else |
3039 | /* We're getting selection request events, but we don't have | |
3040 | a window system. */ | |
3041 | abort (); | |
3042 | #endif | |
48e416d4 | 3043 | } |
e98a93eb | 3044 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
3045 | else if (event->kind == delete_window_event) |
3046 | { | |
bbdc2092 RS |
3047 | /* Make an event (delete-frame (FRAME)). */ |
3048 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3049 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3050 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3051 | } |
3052 | else if (event->kind == iconify_event) | |
3053 | { | |
3054 | /* Make an event (iconify-frame (FRAME)). */ | |
3055 | obj = Fcons (event->frame_or_window, Qnil); | |
3056 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3057 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3058 | } |
3059 | else if (event->kind == deiconify_event) | |
3060 | { | |
3061 | /* Make an event (make-frame-visible (FRAME)). */ | |
3062 | obj = Fcons (event->frame_or_window, Qnil); | |
3063 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3064 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3065 | } |
3066 | #endif | |
a8015ab5 KH |
3067 | else if (event->kind == buffer_switch_event) |
3068 | { | |
3069 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3070 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3071 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3072 | } |
07de30b9 | 3073 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
3074 | else if (event->kind == menu_bar_activate_event) |
3075 | { | |
3076 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3077 | input_pending = readable_events (0); |
e649d076 RS |
3078 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3079 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3080 | } |
1161d367 GV |
3081 | #endif |
3082 | #ifdef WINDOWSNT | |
3083 | else if (event->kind == language_change_event) | |
3084 | { | |
3085 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3086 | obj = Fcons (event->modifiers, Qnil); | |
3087 | obj = Fcons (event->code, Qnil); | |
3088 | obj = Fcons (event->frame_or_window, obj); | |
3089 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3090 | kbd_fetch_ptr = event + 1; | |
3091 | } | |
099787c1 | 3092 | #endif |
a612e298 | 3093 | /* Just discard these, by returning nil. |
c5fdd383 | 3094 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3095 | when we need to randomly delete events from the queue. |
3096 | (They shouldn't otherwise be found in the buffer, | |
3097 | but on some machines it appears they do show up | |
c5fdd383 | 3098 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3099 | /* On Windows NT/9X, no_event is used to delete extraneous |
3100 | mouse events during a popup-menu call. */ | |
a612e298 | 3101 | else if (event->kind == no_event) |
beecf6a1 | 3102 | kbd_fetch_ptr = event + 1; |
48e416d4 | 3103 | |
4bb994d1 JB |
3104 | /* If this event is on a different frame, return a switch-frame this |
3105 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
3106 | else |
3107 | { | |
9b8eb840 | 3108 | Lisp_Object frame; |
1e12dd87 | 3109 | Lisp_Object focus; |
7b4aedb9 | 3110 | |
9b8eb840 | 3111 | frame = event->frame_or_window; |
2470a66f KH |
3112 | if (CONSP (frame)) |
3113 | frame = XCONS (frame)->car; | |
3114 | else if (WINDOWP (frame)) | |
1e12dd87 | 3115 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3116 | |
1e12dd87 RS |
3117 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3118 | if (! NILP (focus)) | |
3119 | frame = focus; | |
07d2b8de | 3120 | |
4c52b668 | 3121 | if (! EQ (frame, internal_last_event_frame) |
1e12dd87 RS |
3122 | && XFRAME (frame) != selected_frame) |
3123 | obj = make_lispy_switch_frame (frame); | |
4c52b668 | 3124 | internal_last_event_frame = frame; |
4bb994d1 | 3125 | |
1e12dd87 RS |
3126 | /* If we didn't decide to make a switch-frame event, go ahead |
3127 | and build a real event from the queue entry. */ | |
cd21b839 | 3128 | |
1e12dd87 RS |
3129 | if (NILP (obj)) |
3130 | { | |
3131 | obj = make_lispy_event (event); | |
e98a93eb | 3132 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3133 | /* If this was a menu selection, then set the flag to inhibit |
3134 | writing to last_nonmenu_event. Don't do this if the event | |
3135 | we're returning is (menu-bar), though; that indicates the | |
3136 | beginning of the menu sequence, and we might as well leave | |
3137 | that as the `event with parameters' for this selection. */ | |
3138 | if (event->kind == menu_bar_event | |
3139 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) | |
3140 | && used_mouse_menu) | |
3141 | *used_mouse_menu = 1; | |
3142 | #endif | |
1e12dd87 RS |
3143 | |
3144 | /* Wipe out this event, to catch bugs. */ | |
3145 | event->kind = no_event; | |
beecf6a1 | 3146 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 3147 | |
beecf6a1 | 3148 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3149 | } |
4bb994d1 | 3150 | } |
284f4730 | 3151 | } |
2eb6bfbe | 3152 | #ifdef HAVE_MOUSE |
a612e298 | 3153 | /* Try generating a mouse motion event. */ |
f3253854 | 3154 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3155 | { |
f3253854 | 3156 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3157 | Lisp_Object bar_window; |
3c370943 | 3158 | enum scroll_bar_part part; |
e5d77022 JB |
3159 | Lisp_Object x, y; |
3160 | unsigned long time; | |
284f4730 | 3161 | |
c5fdd383 | 3162 | *kbp = current_kboard; |
e177ac3a RS |
3163 | /* Note that this uses F to determine which display to look at. |
3164 | If there is no valid info, it does not store anything | |
3165 | so x remains nil. */ | |
3166 | x = Qnil; | |
dd26ab75 | 3167 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3168 | |
3169 | obj = Qnil; | |
284f4730 | 3170 | |
4bb994d1 JB |
3171 | /* Decide if we should generate a switch-frame event. Don't |
3172 | generate switch-frame events for motion outside of all Emacs | |
3173 | frames. */ | |
e177ac3a | 3174 | if (!NILP (x) && f) |
cd21b839 | 3175 | { |
9b8eb840 | 3176 | Lisp_Object frame; |
4bb994d1 | 3177 | |
9b8eb840 | 3178 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3179 | if (NILP (frame)) |
18cd2eeb | 3180 | XSETFRAME (frame, f); |
4bb994d1 | 3181 | |
4c52b668 | 3182 | if (! EQ (frame, internal_last_event_frame) |
80645119 | 3183 | && XFRAME (frame) != selected_frame) |
764cb3f9 | 3184 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3185 | internal_last_event_frame = frame; |
cd21b839 | 3186 | } |
4bb994d1 | 3187 | |
df0f2ba1 | 3188 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3189 | return a mouse-motion event. */ |
e177ac3a | 3190 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3191 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3192 | } |
2eb6bfbe | 3193 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3194 | else |
3195 | /* We were promised by the above while loop that there was | |
3196 | something for us to read! */ | |
3197 | abort (); | |
3198 | ||
d9d4c147 | 3199 | input_pending = readable_events (0); |
284f4730 | 3200 | |
4c52b668 | 3201 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3202 | |
284f4730 JB |
3203 | return (obj); |
3204 | } | |
a612e298 RS |
3205 | \f |
3206 | /* Process any events that are not user-visible, | |
3207 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3208 | |
3209 | void | |
d9d4c147 KH |
3210 | swallow_events (do_display) |
3211 | int do_display; | |
3a3b9632 | 3212 | { |
87dd9b9b RS |
3213 | int old_timers_run; |
3214 | ||
beecf6a1 | 3215 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3216 | { |
3217 | struct input_event *event; | |
3218 | ||
beecf6a1 KH |
3219 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3220 | ? kbd_fetch_ptr | |
3221 | : kbd_buffer); | |
3a3b9632 RS |
3222 | |
3223 | last_event_timestamp = event->timestamp; | |
3224 | ||
3225 | /* These two kinds of events get special handling | |
3226 | and don't actually appear to the command loop. */ | |
3227 | if (event->kind == selection_request_event) | |
3228 | { | |
3229 | #ifdef HAVE_X11 | |
4581e928 | 3230 | struct input_event copy; |
e0301c07 RS |
3231 | |
3232 | /* Remove it from the buffer before processing it, | |
3233 | since otherwise swallow_events called recursively could see it | |
3234 | and process it again. */ | |
4581e928 | 3235 | copy = *event; |
beecf6a1 | 3236 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3237 | input_pending = readable_events (0); |
4581e928 | 3238 | x_handle_selection_request (©); |
3a3b9632 RS |
3239 | #else |
3240 | /* We're getting selection request events, but we don't have | |
3241 | a window system. */ | |
3242 | abort (); | |
3243 | #endif | |
3244 | } | |
3245 | ||
3246 | else if (event->kind == selection_clear_event) | |
3247 | { | |
3248 | #ifdef HAVE_X11 | |
e0301c07 RS |
3249 | struct input_event copy; |
3250 | ||
3251 | /* Remove it from the buffer before processing it, */ | |
3252 | copy = *event; | |
3253 | ||
beecf6a1 | 3254 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3255 | input_pending = readable_events (0); |
90c2bb0c | 3256 | x_handle_selection_clear (©); |
3a3b9632 RS |
3257 | #else |
3258 | /* We're getting selection request events, but we don't have | |
3259 | a window system. */ | |
3260 | abort (); | |
3261 | #endif | |
3262 | } | |
3263 | else | |
3264 | break; | |
3265 | } | |
3266 | ||
87dd9b9b | 3267 | old_timers_run = timers_run; |
d9d4c147 | 3268 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3269 | |
3270 | if (timers_run != old_timers_run && do_display) | |
3271 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3272 | } |
a612e298 | 3273 | \f |
d9d4c147 KH |
3274 | static EMACS_TIME timer_idleness_start_time; |
3275 | ||
3276 | /* Record the start of when Emacs is idle, | |
3277 | for the sake of running idle-time timers. */ | |
3278 | ||
07a59269 | 3279 | void |
d9d4c147 KH |
3280 | timer_start_idle () |
3281 | { | |
3282 | Lisp_Object timers; | |
3283 | ||
3284 | /* If we are already in the idle state, do nothing. */ | |
3285 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3286 | return; | |
3287 | ||
3288 | EMACS_GET_TIME (timer_idleness_start_time); | |
3289 | ||
3290 | /* Mark all idle-time timers as once again candidates for running. */ | |
3291 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCONS (timers)->cdr) | |
3292 | { | |
3293 | Lisp_Object timer; | |
3294 | ||
3295 | timer = XCONS (timers)->car; | |
3296 | ||
3297 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3298 | continue; | |
3299 | XVECTOR (timer)->contents[0] = Qnil; | |
3300 | } | |
3301 | } | |
3302 | ||
3303 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3304 | ||
07a59269 | 3305 | void |
d9d4c147 KH |
3306 | timer_stop_idle () |
3307 | { | |
3308 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3309 | } | |
3310 | ||
e044e87c RS |
3311 | /* This is only for debugging. */ |
3312 | struct input_event last_timer_event; | |
3313 | ||
c04cbc3b RS |
3314 | /* Check whether a timer has fired. To prevent larger problems we simply |
3315 | disregard elements that are not proper timers. Do not make a circular | |
3316 | timer list for the time being. | |
3317 | ||
3318 | Returns the number of seconds to wait until the next timer fires. If a | |
3319 | timer is triggering now, return zero seconds. | |
3320 | If no timer is active, return -1 seconds. | |
3321 | ||
4ec4ed6a RS |
3322 | If a timer is ripe, we run it, with quitting turned off. |
3323 | ||
3324 | DO_IT_NOW is now ignored. It used to mean that we should | |
3325 | run the timer directly instead of queueing a timer-event. | |
3326 | Now we always run timers directly. */ | |
c04cbc3b RS |
3327 | |
3328 | EMACS_TIME | |
3329 | timer_check (do_it_now) | |
3330 | int do_it_now; | |
3331 | { | |
3332 | EMACS_TIME nexttime; | |
9291c072 RS |
3333 | EMACS_TIME now, idleness_now; |
3334 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3335 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3336 | |
c04cbc3b RS |
3337 | EMACS_SET_SECS (nexttime, -1); |
3338 | EMACS_SET_USECS (nexttime, -1); | |
3339 | ||
9291c072 | 3340 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3341 | timers = Vtimer_list; |
9291c072 RS |
3342 | /* Consider the idle timers only if Emacs is idle. */ |
3343 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3344 | idle_timers = Vtimer_idle_list; | |
3345 | else | |
3346 | idle_timers = Qnil; | |
3347 | chosen_timer = Qnil; | |
3348 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3349 | |
9291c072 | 3350 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3351 | { |
9291c072 RS |
3352 | EMACS_GET_TIME (now); |
3353 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3354 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3355 | } | |
c04cbc3b | 3356 | |
9291c072 RS |
3357 | while (CONSP (timers) || CONSP (idle_timers)) |
3358 | { | |
3359 | int triggertime = EMACS_SECS (now); | |
3360 | Lisp_Object *vector; | |
3361 | Lisp_Object timer, idle_timer; | |
3362 | EMACS_TIME timer_time, idle_timer_time; | |
3363 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3364 | ||
3365 | /* Skip past invalid timers and timers already handled. */ | |
3366 | if (!NILP (timers)) | |
c04cbc3b | 3367 | { |
d9d4c147 | 3368 | timer = XCONS (timers)->car; |
9291c072 RS |
3369 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3370 | { | |
3371 | timers = XCONS (timers)->cdr; | |
3372 | continue; | |
3373 | } | |
3374 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3375 | |
9291c072 RS |
3376 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3377 | || !INTEGERP (vector[3]) | |
3378 | || ! NILP (vector[0])) | |
3379 | { | |
3380 | timers = XCONS (timers)->cdr; | |
3381 | continue; | |
3382 | } | |
3383 | } | |
3384 | if (!NILP (idle_timers)) | |
3385 | { | |
3386 | timer = XCONS (idle_timers)->car; | |
d9d4c147 | 3387 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 RS |
3388 | { |
3389 | idle_timers = XCONS (idle_timers)->cdr; | |
3390 | continue; | |
3391 | } | |
d9d4c147 KH |
3392 | vector = XVECTOR (timer)->contents; |
3393 | ||
3394 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3395 | || !INTEGERP (vector[3]) |
3396 | || ! NILP (vector[0])) | |
3397 | { | |
3398 | idle_timers = XCONS (idle_timers)->cdr; | |
3399 | continue; | |
3400 | } | |
3401 | } | |
d9d4c147 | 3402 | |
9291c072 RS |
3403 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3404 | based on the next ordinary timer. | |
3405 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3406 | this timer becomes ripe (negative if it's already ripe). */ | |
3407 | if (!NILP (timers)) | |
3408 | { | |
3409 | timer = XCONS (timers)->car; | |
3410 | vector = XVECTOR (timer)->contents; | |
d9d4c147 KH |
3411 | EMACS_SET_SECS (timer_time, |
3412 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3413 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3414 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3415 | } | |
ba8dfba8 | 3416 | |
9291c072 RS |
3417 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3418 | based on the next idle timer. */ | |
3419 | if (!NILP (idle_timers)) | |
3420 | { | |
3421 | idle_timer = XCONS (idle_timers)->car; | |
3422 | vector = XVECTOR (idle_timer)->contents; | |
3423 | EMACS_SET_SECS (idle_timer_time, | |
3424 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3425 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3426 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3427 | } | |
ba8dfba8 | 3428 | |
9291c072 RS |
3429 | /* Decide which timer is the next timer, |
3430 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3431 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3432 | |
9291c072 RS |
3433 | if (! NILP (timers) && ! NILP (idle_timers)) |
3434 | { | |
3435 | EMACS_TIME temp; | |
3436 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3437 | if (EMACS_TIME_NEG_P (temp)) | |
3438 | { | |
3439 | chosen_timer = timer; | |
3440 | timers = XCONS (timers)->cdr; | |
3441 | difference = timer_difference; | |
c04cbc3b | 3442 | } |
d9d4c147 | 3443 | else |
d9d4c147 | 3444 | { |
9291c072 RS |
3445 | chosen_timer = idle_timer; |
3446 | idle_timers = XCONS (idle_timers)->cdr; | |
3447 | difference = idle_timer_difference; | |
d9d4c147 | 3448 | } |
7ea13e12 | 3449 | } |
9291c072 RS |
3450 | else if (! NILP (timers)) |
3451 | { | |
3452 | chosen_timer = timer; | |
3453 | timers = XCONS (timers)->cdr; | |
3454 | difference = timer_difference; | |
3455 | } | |
3456 | else | |
3457 | { | |
3458 | chosen_timer = idle_timer; | |
3459 | idle_timers = XCONS (idle_timers)->cdr; | |
3460 | difference = idle_timer_difference; | |
3461 | } | |
3462 | vector = XVECTOR (chosen_timer)->contents; | |
3463 | ||
3464 | /* If timer is rupe, run it if it hasn't been run. */ | |
3465 | if (EMACS_TIME_NEG_P (difference) | |
3466 | || (EMACS_SECS (difference) == 0 | |
3467 | && EMACS_USECS (difference) == 0)) | |
3468 | { | |
3469 | if (NILP (vector[0])) | |
3470 | { | |
d925fb39 RS |
3471 | Lisp_Object tem; |
3472 | int was_locked = single_kboard; | |
3473 | int count = specpdl_ptr - specpdl; | |
3474 | ||
9291c072 RS |
3475 | /* Mark the timer as triggered to prevent problems if the lisp |
3476 | code fails to reschedule it right. */ | |
3477 | vector[0] = Qt; | |
3478 | ||
d925fb39 | 3479 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3480 | |
d925fb39 RS |
3481 | call1 (Qtimer_event_handler, chosen_timer); |
3482 | timers_run++; | |
9291c072 | 3483 | |
d925fb39 | 3484 | unbind_to (count, Qnil); |
4ec4ed6a | 3485 | |
d925fb39 RS |
3486 | /* Resume allowing input from any kboard, if that was true before. */ |
3487 | if (!was_locked) | |
3488 | any_kboard_state (); | |
9291c072 | 3489 | |
d925fb39 RS |
3490 | /* Since we have handled the event, |
3491 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3492 | } |
3493 | } | |
3494 | else | |
3495 | /* When we encounter a timer that is still waiting, | |
3496 | return the amount of time to wait before it is ripe. */ | |
3497 | { | |
3498 | UNGCPRO; | |
9291c072 RS |
3499 | return difference; |
3500 | } | |
c04cbc3b | 3501 | } |
9291c072 | 3502 | |
7ea13e12 RS |
3503 | /* No timers are pending in the future. */ |
3504 | /* Return 0 if we generated an event, and -1 if not. */ | |
3505 | UNGCPRO; | |
c04cbc3b RS |
3506 | return nexttime; |
3507 | } | |
3508 | \f | |
284f4730 | 3509 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3510 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3511 | static Lisp_Object func_key_syms; |
3512 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3513 | #ifdef WINDOWSNT |
3514 | static Lisp_Object mouse_wheel_syms; | |
3515 | #endif | |
a24dc617 | 3516 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 3517 | |
e9bf89a0 RS |
3518 | /* This is a list of keysym codes for special "accent" characters. |
3519 | It parallels lispy_accent_keys. */ | |
3520 | ||
3521 | static int lispy_accent_codes[] = | |
3522 | { | |
79a7046c | 3523 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3524 | XK_dead_circumflex, |
79a7046c RS |
3525 | #else |
3526 | 0, | |
3527 | #endif | |
3528 | #ifdef XK_dead_grave | |
e9bf89a0 | 3529 | XK_dead_grave, |
79a7046c RS |
3530 | #else |
3531 | 0, | |
3532 | #endif | |
3533 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3534 | XK_dead_tilde, |
79a7046c RS |
3535 | #else |
3536 | 0, | |
3537 | #endif | |
3538 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3539 | XK_dead_diaeresis, |
79a7046c RS |
3540 | #else |
3541 | 0, | |
3542 | #endif | |
3543 | #ifdef XK_dead_macron | |
e9bf89a0 | 3544 | XK_dead_macron, |
79a7046c RS |
3545 | #else |
3546 | 0, | |
3547 | #endif | |
3548 | #ifdef XK_dead_degree | |
e9bf89a0 | 3549 | XK_dead_degree, |
79a7046c RS |
3550 | #else |
3551 | 0, | |
3552 | #endif | |
3553 | #ifdef XK_dead_acute | |
e9bf89a0 | 3554 | XK_dead_acute, |
79a7046c RS |
3555 | #else |
3556 | 0, | |
3557 | #endif | |
3558 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3559 | XK_dead_cedilla, |
79a7046c RS |
3560 | #else |
3561 | 0, | |
3562 | #endif | |
3563 | #ifdef XK_dead_breve | |
e9bf89a0 | 3564 | XK_dead_breve, |
79a7046c RS |
3565 | #else |
3566 | 0, | |
3567 | #endif | |
3568 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3569 | XK_dead_ogonek, |
79a7046c RS |
3570 | #else |
3571 | 0, | |
3572 | #endif | |
3573 | #ifdef XK_dead_caron | |
e9bf89a0 | 3574 | XK_dead_caron, |
79a7046c RS |
3575 | #else |
3576 | 0, | |
3577 | #endif | |
3578 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3579 | XK_dead_doubleacute, |
79a7046c RS |
3580 | #else |
3581 | 0, | |
3582 | #endif | |
3583 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3584 | XK_dead_abovedot, |
79a7046c RS |
3585 | #else |
3586 | 0, | |
3587 | #endif | |
e9bf89a0 RS |
3588 | }; |
3589 | ||
3590 | /* This is a list of Lisp names for special "accent" characters. | |
3591 | It parallels lispy_accent_codes. */ | |
3592 | ||
3593 | static char *lispy_accent_keys[] = | |
3594 | { | |
3595 | "dead-circumflex", | |
3596 | "dead-grave", | |
3597 | "dead-tilde", | |
3598 | "dead-diaeresis", | |
3599 | "dead-macron", | |
3600 | "dead-degree", | |
3601 | "dead-acute", | |
3602 | "dead-cedilla", | |
3603 | "dead-breve", | |
3604 | "dead-ogonek", | |
3605 | "dead-caron", | |
3606 | "dead-doubleacute", | |
3607 | "dead-abovedot", | |
3608 | }; | |
3609 | ||
e98a93eb GV |
3610 | #ifdef HAVE_NTGUI |
3611 | #define FUNCTION_KEY_OFFSET 0x0 | |
3612 | ||
3613 | char *lispy_function_keys[] = | |
3614 | { | |
3615 | 0, /* 0 */ | |
3616 | ||
3617 | 0, /* VK_LBUTTON 0x01 */ | |
3618 | 0, /* VK_RBUTTON 0x02 */ | |
3619 | "cancel", /* VK_CANCEL 0x03 */ | |
3620 | 0, /* VK_MBUTTON 0x04 */ | |
3621 | ||
3622 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3623 | ||
3624 | "backspace", /* VK_BACK 0x08 */ | |
3625 | "tab", /* VK_TAB 0x09 */ | |
3626 | ||
3627 | 0, 0, /* 0x0A .. 0x0B */ | |
3628 | ||
3629 | "clear", /* VK_CLEAR 0x0C */ | |
3630 | "return", /* VK_RETURN 0x0D */ | |
3631 | ||
3632 | 0, 0, /* 0x0E .. 0x0F */ | |
3633 | ||
1161d367 GV |
3634 | 0, /* VK_SHIFT 0x10 */ |
3635 | 0, /* VK_CONTROL 0x11 */ | |
3636 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 3637 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 3638 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
3639 | |
3640 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3641 | ||
1161d367 | 3642 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
3643 | |
3644 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3645 | ||
3646 | 0, /* VK_SPACE 0x20 */ | |
3647 | "prior", /* VK_PRIOR 0x21 */ | |
3648 | "next", /* VK_NEXT 0x22 */ | |
3649 | "end", /* VK_END 0x23 */ | |
3650 | "home", /* VK_HOME 0x24 */ | |
3651 | "left", /* VK_LEFT 0x25 */ | |
3652 | "up", /* VK_UP 0x26 */ | |
3653 | "right", /* VK_RIGHT 0x27 */ | |
3654 | "down", /* VK_DOWN 0x28 */ | |
3655 | "select", /* VK_SELECT 0x29 */ | |
3656 | "print", /* VK_PRINT 0x2A */ | |
3657 | "execute", /* VK_EXECUTE 0x2B */ | |
3658 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3659 | "insert", /* VK_INSERT 0x2D */ | |
3660 | "delete", /* VK_DELETE 0x2E */ | |
3661 | "help", /* VK_HELP 0x2F */ | |
3662 | ||
3663 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3664 | ||
3665 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3666 | ||
3667 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3668 | ||
3669 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3670 | ||
3671 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3672 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3673 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3674 | ||
e376f90d RS |
3675 | "lwindow", /* VK_LWIN 0x5B */ |
3676 | "rwindow", /* VK_RWIN 0x5C */ | |
3677 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3678 | |
3679 | 0, 0, /* 0x5E .. 0x5F */ | |
3680 | ||
3681 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3682 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3683 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3684 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3685 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3686 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3687 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3688 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3689 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3690 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3691 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3692 | "kp-add", /* VK_ADD 0x6B */ | |
3693 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3694 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3695 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3696 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3697 | "f1", /* VK_F1 0x70 */ | |
3698 | "f2", /* VK_F2 0x71 */ | |
3699 | "f3", /* VK_F3 0x72 */ | |
3700 | "f4", /* VK_F4 0x73 */ | |
3701 | "f5", /* VK_F5 0x74 */ | |
3702 | "f6", /* VK_F6 0x75 */ | |
3703 | "f7", /* VK_F7 0x76 */ | |
3704 | "f8", /* VK_F8 0x77 */ | |
3705 | "f9", /* VK_F9 0x78 */ | |
3706 | "f10", /* VK_F10 0x79 */ | |
3707 | "f11", /* VK_F11 0x7A */ | |
3708 | "f12", /* VK_F12 0x7B */ | |
3709 | "f13", /* VK_F13 0x7C */ | |
3710 | "f14", /* VK_F14 0x7D */ | |
3711 | "f15", /* VK_F15 0x7E */ | |
3712 | "f16", /* VK_F16 0x7F */ | |
3713 | "f17", /* VK_F17 0x80 */ | |
3714 | "f18", /* VK_F18 0x81 */ | |
3715 | "f19", /* VK_F19 0x82 */ | |
3716 | "f20", /* VK_F20 0x83 */ | |
3717 | "f21", /* VK_F21 0x84 */ | |
3718 | "f22", /* VK_F22 0x85 */ | |
3719 | "f23", /* VK_F23 0x86 */ | |
3720 | "f24", /* VK_F24 0x87 */ | |
3721 | ||
3722 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3723 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3724 | ||
3725 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3726 | "scroll", /* VK_SCROLL 0x91 */ | |
3727 | ||
e376f90d RS |
3728 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3729 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3730 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3731 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3732 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3733 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3734 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3735 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3736 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3737 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3738 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3739 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3740 | ||
3741 | 0, 0, /* 0x9E .. 0x9F */ | |
3742 | ||
e98a93eb GV |
3743 | /* |
3744 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 3745 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
3746 | * No other API or message will distinguish left and right keys this way. |
3747 | */ | |
3748 | /* 0xA0 .. 0xEF */ | |
3749 | ||
3750 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3751 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3752 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3753 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3754 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3755 | ||
3756 | /* 0xF0 .. 0xF5 */ | |
3757 | ||
3758 | 0, 0, 0, 0, 0, 0, | |
3759 | ||
3760 | "attn", /* VK_ATTN 0xF6 */ | |
3761 | "crsel", /* VK_CRSEL 0xF7 */ | |
3762 | "exsel", /* VK_EXSEL 0xF8 */ | |
3763 | "ereof", /* VK_EREOF 0xF9 */ | |
3764 | "play", /* VK_PLAY 0xFA */ | |
3765 | "zoom", /* VK_ZOOM 0xFB */ | |
3766 | "noname", /* VK_NONAME 0xFC */ | |
3767 | "pa1", /* VK_PA1 0xFD */ | |
3768 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 3769 | 0 /* 0xFF */ |
e98a93eb GV |
3770 | }; |
3771 | ||
04f215f0 | 3772 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3773 | |
37cd9f30 KH |
3774 | #ifdef XK_kana_A |
3775 | static char *lispy_kana_keys[] = | |
3776 | { | |
3777 | /* X Keysym value */ | |
3778 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3779 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3780 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3781 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3782 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3783 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3784 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3785 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3786 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3787 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3788 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3789 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3790 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3791 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3792 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3793 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3794 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3795 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3796 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3797 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3798 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3799 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3800 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3801 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3802 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3803 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3804 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3805 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3806 | }; | |
3807 | #endif /* XK_kana_A */ | |
3808 | ||
04f215f0 RS |
3809 | #define FUNCTION_KEY_OFFSET 0xff00 |
3810 | ||
284f4730 JB |
3811 | /* You'll notice that this table is arranged to be conveniently |
3812 | indexed by X Windows keysym values. */ | |
3813 | static char *lispy_function_keys[] = | |
3814 | { | |
3815 | /* X Keysym value */ | |
3816 | ||
75045dcb RS |
3817 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
3818 | "backspace", "tab", "linefeed", "clear", | |
3819 | 0, "return", 0, 0, | |
3820 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
3821 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 3822 | 0, 0, 0, 0, |
75045dcb RS |
3823 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
3824 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
3825 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
3826 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
3827 | "eisu-toggle", /* 0xff30...3f */ | |
3828 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
3829 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
3830 | ||
75045dcb RS |
3831 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
3832 | "down", "prior", "next", "end", | |
3833 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3834 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
3835 | "print", | |
3836 | "execute", | |
3837 | "insert", | |
3838 | 0, /* 0xff64 */ | |
3839 | "undo", | |
3840 | "redo", | |
3841 | "menu", | |
3842 | "find", | |
3843 | "cancel", | |
3844 | "help", | |
3845 | "break", /* 0xff6b */ | |
3846 | ||
75045dcb RS |
3847 | 0, 0, 0, 0, |
3848 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
3849 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
3850 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3851 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3852 | "kp-tab", /* 0xff89 */ | |
3853 | 0, 0, 0, | |
3854 | "kp-enter", /* 0xff8d */ | |
3855 | 0, 0, 0, | |
3856 | "kp-f1", /* 0xff91 */ | |
3857 | "kp-f2", | |
3858 | "kp-f3", | |
3859 | "kp-f4", | |
872157e7 RS |
3860 | "kp-home", /* 0xff95 */ |
3861 | "kp-left", | |
3862 | "kp-up", | |
3863 | "kp-right", | |
3864 | "kp-down", | |
3865 | "kp-prior", /* kp-page-up */ | |
3866 | "kp-next", /* kp-page-down */ | |
3867 | "kp-end", | |
3868 | "kp-begin", | |
3869 | "kp-insert", | |
3870 | "kp-delete", | |
3871 | 0, /* 0xffa0 */ | |
3872 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3873 | "kp-multiply", /* 0xffaa */ |
3874 | "kp-add", | |
3875 | "kp-separator", | |
3876 | "kp-subtract", | |
3877 | "kp-decimal", | |
3878 | "kp-divide", /* 0xffaf */ | |
3879 | "kp-0", /* 0xffb0 */ | |
3880 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3881 | 0, /* 0xffba */ | |
3882 | 0, 0, | |
3883 | "kp-equal", /* 0xffbd */ | |
3884 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3885 | "f2", |
3886 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3887 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3888 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3889 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3890 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3891 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3892 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3893 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 3894 | }; |
284f4730 | 3895 | |
04f215f0 RS |
3896 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
3897 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
3898 | ||
3899 | static char *iso_lispy_function_keys[] = | |
3900 | { | |
3901 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
3902 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
3903 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
3904 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
3905 | "iso-lefttab", /* 0xfe20 */ | |
3906 | "iso-move-line-up", "iso-move-line-down", | |
3907 | "iso-partial-line-up", "iso-partial-line-down", | |
3908 | "iso-partial-space-left", "iso-partial-space-right", | |
3909 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
3910 | "iso-release-margin-left", "iso-release-margin-right", | |
3911 | "iso-release-both-margins", | |
3912 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
3913 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
3914 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
3915 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
3916 | }; | |
3917 | ||
3918 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 3919 | |
df0f2ba1 | 3920 | static char *lispy_mouse_names[] = |
284f4730 JB |
3921 | { |
3922 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3923 | }; | |
3924 | ||
07de30b9 GV |
3925 | #ifdef WINDOWSNT |
3926 | /* mouse-wheel events are generated by the wheel on devices such as | |
3927 | the MS Intellimouse. The wheel sits in between the left and right | |
3928 | mouse buttons, and is typically used to scroll or zoom the window | |
3929 | underneath the pointer. mouse-wheel events specify the object on | |
3930 | which they operate, and a delta corresponding to the amount and | |
3931 | direction that the wheel is rotated. Clicking the mouse-wheel | |
3932 | generates a mouse-2 event. */ | |
3933 | static char *lispy_mouse_wheel_names[] = | |
3934 | { | |
3935 | "mouse-wheel" | |
3936 | }; | |
a24dc617 | 3937 | |
07de30b9 GV |
3938 | #endif /* WINDOWSNT */ |
3939 | ||
a24dc617 RS |
3940 | /* drag-n-drop events are generated when a set of selected files are |
3941 | dragged from another application and dropped onto an Emacs window. */ | |
3942 | static char *lispy_drag_n_drop_names[] = | |
3943 | { | |
3944 | "drag-n-drop" | |
3945 | }; | |
3946 | ||
3c370943 | 3947 | /* Scroll bar parts. */ |
4bb994d1 | 3948 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
db08707d | 3949 | Lisp_Object Qup, Qdown; |
4bb994d1 | 3950 | |
3c370943 JB |
3951 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
3952 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d RS |
3953 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
3954 | &Qup, &Qdown, | |
4bb994d1 JB |
3955 | }; |
3956 | ||
3957 | ||
7b4aedb9 | 3958 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 3959 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
3960 | |
3961 | The elements have the form | |
3962 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
3963 | where REST is the cdr of a position as it would be reported in the event. | |
3964 | ||
3965 | The make_lispy_event function stores positions here to tell the | |
3966 | difference between click and drag events, and to store the starting | |
3967 | location to be included in drag events. */ | |
3968 | ||
3969 | static Lisp_Object button_down_location; | |
88cb0656 | 3970 | |
fbcd35bd JB |
3971 | /* Information about the most recent up-going button event: Which |
3972 | button, what location, and what time. */ | |
3973 | ||
559f9d04 RS |
3974 | static int last_mouse_button; |
3975 | static int last_mouse_x; | |
3976 | static int last_mouse_y; | |
3977 | static unsigned long button_down_time; | |
fbcd35bd | 3978 | |
564dc952 JB |
3979 | /* The maximum time between clicks to make a double-click, |
3980 | or Qnil to disable double-click detection, | |
3981 | or Qt for no time limit. */ | |
3982 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
3983 | |
3984 | /* The number of clicks in this multiple-click. */ | |
3985 | ||
3986 | int double_click_count; | |
3987 | ||
284f4730 JB |
3988 | /* Given a struct input_event, build the lisp event which represents |
3989 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
3990 | movement buffer, which should have a movement event in it. |
3991 | ||
3992 | Note that events must be passed to this function in the order they | |
3993 | are received; this function stores the location of button presses | |
3994 | in order to build drag events when the button is released. */ | |
284f4730 JB |
3995 | |
3996 | static Lisp_Object | |
3997 | make_lispy_event (event) | |
3998 | struct input_event *event; | |
3999 | { | |
79a7046c RS |
4000 | int i; |
4001 | ||
0220c518 | 4002 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4003 | { |
284f4730 JB |
4004 | /* A simple keystroke. */ |
4005 | case ascii_keystroke: | |
86e5706b | 4006 | { |
9343ab07 | 4007 | Lisp_Object lispy_c; |
e9bf89a0 | 4008 | int c = event->code & 0377; |
5a1c6df8 JB |
4009 | /* Turn ASCII characters into control characters |
4010 | when proper. */ | |
4011 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4012 | c = make_ctrl_char (c); |
4013 | ||
4014 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4015 | just above, and the shift key was taken care of by the X code, | |
4016 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4017 | c |= (event->modifiers |
4018 | & (meta_modifier | alt_modifier | |
4019 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4020 | /* Distinguish Shift-SPC from SPC. */ |
4021 | if ((event->code & 0377) == 040 | |
4022 | && event->modifiers & shift_modifier) | |
4023 | c |= shift_modifier; | |
559f9d04 | 4024 | button_down_time = 0; |
bb9e9bed | 4025 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4026 | return lispy_c; |
86e5706b | 4027 | } |
284f4730 JB |
4028 | |
4029 | /* A function key. The symbol may need to have modifier prefixes | |
4030 | tacked onto it. */ | |
4031 | case non_ascii_keystroke: | |
559f9d04 | 4032 | button_down_time = 0; |
e9bf89a0 RS |
4033 | |
4034 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4035 | if (event->code == lispy_accent_codes[i]) | |
4036 | return modify_event_symbol (i, | |
4037 | event->modifiers, | |
80e4aa30 | 4038 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4039 | lispy_accent_keys, &accent_key_syms, |
4040 | (sizeof (lispy_accent_keys) | |
4041 | / sizeof (lispy_accent_keys[0]))); | |
4042 | ||
270a208f | 4043 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4044 | if (event->code & (1 << 28)) |
4045 | { | |
4046 | /* We need to use an alist rather than a vector as the cache | |
4047 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4048 | if (NILP (current_kboard->system_key_syms)) |
4049 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4050 | return modify_event_symbol (event->code, |
80e4aa30 | 4051 | event->modifiers, |
7c97ffdc KH |
4052 | Qfunction_key, |
4053 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4054 | 0, ¤t_kboard->system_key_syms, |
4055 | (unsigned)-1); | |
80e4aa30 RS |
4056 | } |
4057 | ||
37cd9f30 KH |
4058 | #ifdef XK_kana_A |
4059 | if (event->code >= 0x400 && event->code < 0x500) | |
4060 | return modify_event_symbol (event->code - 0x400, | |
4061 | event->modifiers & ~shift_modifier, | |
4062 | Qfunction_key, Qnil, | |
4063 | lispy_kana_keys, &func_key_syms, | |
4064 | (sizeof (lispy_kana_keys) | |
4065 | / sizeof (lispy_kana_keys[0]))); | |
4066 | #endif /* XK_kana_A */ | |
4067 | ||
111c4138 | 4068 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4069 | if (event->code < FUNCTION_KEY_OFFSET |
4070 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4071 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4072 | event->modifiers, | |
4073 | Qfunction_key, Qnil, | |
4074 | iso_lispy_function_keys, &func_key_syms, | |
4075 | (sizeof (iso_lispy_function_keys) | |
4076 | / sizeof (iso_lispy_function_keys[0]))); | |
4077 | else | |
111c4138 | 4078 | #endif |
04f215f0 RS |
4079 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4080 | event->modifiers, | |
4081 | Qfunction_key, Qnil, | |
4082 | lispy_function_keys, &func_key_syms, | |
4083 | (sizeof (lispy_function_keys) | |
4084 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4085 | |
514354e9 | 4086 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4087 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4088 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4089 | case mouse_click: |
3c370943 | 4090 | case scroll_bar_click: |
284f4730 | 4091 | { |
e9bf89a0 | 4092 | int button = event->code; |
559f9d04 | 4093 | int is_double; |
7b4aedb9 | 4094 | Lisp_Object position; |
dbc4e1c1 JB |
4095 | Lisp_Object *start_pos_ptr; |
4096 | Lisp_Object start_pos; | |
284f4730 | 4097 | |
7b4aedb9 | 4098 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
4099 | abort (); |
4100 | ||
7b4aedb9 JB |
4101 | /* Build the position as appropriate for this mouse click. */ |
4102 | if (event->kind == mouse_click) | |
284f4730 | 4103 | { |
7b4aedb9 | 4104 | int part; |
598a9fa7 | 4105 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4106 | Lisp_Object window; |
7b4aedb9 | 4107 | Lisp_Object posn; |
9e20143a RS |
4108 | int row, column; |
4109 | ||
5da3133a RS |
4110 | /* Ignore mouse events that were made on frame that |
4111 | have been deleted. */ | |
4112 | if (! FRAME_LIVE_P (f)) | |
4113 | return Qnil; | |
4114 | ||
9e20143a | 4115 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), |
6c6a9be8 | 4116 | &column, &row, NULL, 1); |
7b4aedb9 | 4117 | |
eef045bf RS |
4118 | #ifndef USE_X_TOOLKIT |
4119 | /* In the non-toolkit version, clicks on the menu bar | |
4120 | are ordinary button events in the event buffer. | |
4121 | Distinguish them, and invoke the menu. | |
4122 | ||
4123 | (In the toolkit version, the toolkit handles the menu bar | |
4124 | and Emacs doesn't know about it until after the user | |
4125 | makes a selection.) */ | |
2ee250ec RS |
4126 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4127 | && (event->modifiers & down_modifier)) | |
bb936752 | 4128 | { |
b7c49376 | 4129 | Lisp_Object items, item; |
0a0e8fe6 RS |
4130 | int hpos; |
4131 | int i; | |
4132 | ||
2ee250ec | 4133 | #if 0 |
0a0e8fe6 RS |
4134 | /* Activate the menu bar on the down event. If the |
4135 | up event comes in before the menu code can deal with it, | |
4136 | just ignore it. */ | |
4137 | if (! (event->modifiers & down_modifier)) | |
4138 | return Qnil; | |
2ee250ec | 4139 | #endif |
0aafc975 | 4140 | |
f2ae6b3f | 4141 | item = Qnil; |
5ec75a55 | 4142 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4143 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4144 | { |
4145 | Lisp_Object pos, string; | |
b7c49376 | 4146 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 4147 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
4148 | if (NILP (string)) |
4149 | break; | |
9e20143a RS |
4150 | if (column >= XINT (pos) |
4151 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
4152 | { |
4153 | item = XVECTOR (items)->contents[i]; | |
4154 | break; | |
4155 | } | |
5ec75a55 | 4156 | } |
9e20143a | 4157 | |
5ec75a55 RS |
4158 | position |
4159 | = Fcons (event->frame_or_window, | |
4160 | Fcons (Qmenu_bar, | |
4161 | Fcons (Fcons (event->x, event->y), | |
4162 | Fcons (make_number (event->timestamp), | |
4163 | Qnil)))); | |
4164 | ||
b7c49376 | 4165 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4166 | } |
eef045bf | 4167 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4168 | |
9e20143a | 4169 | window = window_from_coordinates (f, column, row, &part); |
0aafc975 | 4170 | |
8c18cbfb | 4171 | if (!WINDOWP (window)) |
78ced549 RS |
4172 | { |
4173 | window = event->frame_or_window; | |
4174 | posn = Qnil; | |
4175 | } | |
284f4730 | 4176 | else |
7b4aedb9 | 4177 | { |
9e20143a | 4178 | int pixcolumn, pixrow; |
c8738c33 | 4179 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
4180 | row -= XINT (XWINDOW (window)->top); |
4181 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4182 | XSETINT (event->x, pixcolumn); | |
4183 | XSETINT (event->y, pixrow); | |
dbc4e1c1 | 4184 | |
7b4aedb9 JB |
4185 | if (part == 1) |
4186 | posn = Qmode_line; | |
4187 | else if (part == 2) | |
4188 | posn = Qvertical_line; | |
4189 | else | |
18cd2eeb KH |
4190 | XSETINT (posn, |
4191 | buffer_posn_from_coords (XWINDOW (window), | |
4192 | column, row)); | |
7b4aedb9 JB |
4193 | } |
4194 | ||
5ec75a55 RS |
4195 | position |
4196 | = Fcons (window, | |
4197 | Fcons (posn, | |
4198 | Fcons (Fcons (event->x, event->y), | |
4199 | Fcons (make_number (event->timestamp), | |
4200 | Qnil)))); | |
284f4730 | 4201 | } |
7b4aedb9 | 4202 | else |
88cb0656 | 4203 | { |
9e20143a RS |
4204 | Lisp_Object window; |
4205 | Lisp_Object portion_whole; | |
4206 | Lisp_Object part; | |
4207 | ||
4208 | window = event->frame_or_window; | |
4209 | portion_whole = Fcons (event->x, event->y); | |
4210 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4211 | |
db08707d RS |
4212 | position |
4213 | = Fcons (window, | |
4214 | Fcons (Qvertical_scroll_bar, | |
4215 | Fcons (portion_whole, | |
4216 | Fcons (make_number (event->timestamp), | |
4217 | Fcons (part, Qnil))))); | |
88cb0656 JB |
4218 | } |
4219 | ||
dbc4e1c1 JB |
4220 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
4221 | ||
4222 | start_pos = *start_pos_ptr; | |
4223 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4224 | |
559f9d04 RS |
4225 | is_double = (button == last_mouse_button |
4226 | && XINT (event->x) == last_mouse_x | |
4227 | && XINT (event->y) == last_mouse_y | |
4228 | && button_down_time != 0 | |
4229 | && (EQ (Vdouble_click_time, Qt) | |
4230 | || (INTEGERP (Vdouble_click_time) | |
4231 | && ((int)(event->timestamp - button_down_time) | |
4232 | < XINT (Vdouble_click_time))))); | |
4233 | last_mouse_button = button; | |
4234 | last_mouse_x = XINT (event->x); | |
4235 | last_mouse_y = XINT (event->y); | |
4236 | ||
7b4aedb9 JB |
4237 | /* If this is a button press, squirrel away the location, so |
4238 | we can decide later whether it was a click or a drag. */ | |
4239 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4240 | { |
4241 | if (is_double) | |
4242 | { | |
4243 | double_click_count++; | |
4244 | event->modifiers |= ((double_click_count > 2) | |
4245 | ? triple_modifier | |
4246 | : double_modifier); | |
4247 | } | |
4248 | else | |
4249 | double_click_count = 1; | |
4250 | button_down_time = event->timestamp; | |
4251 | *start_pos_ptr = Fcopy_alist (position); | |
4252 | } | |
7b4aedb9 | 4253 | |
88cb0656 | 4254 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4255 | see if this was a click or a drag. */ |
88cb0656 JB |
4256 | else if (event->modifiers & up_modifier) |
4257 | { | |
48e416d4 RS |
4258 | /* If we did not see a down before this up, |
4259 | ignore the up. Probably this happened because | |
4260 | the down event chose a menu item. | |
4261 | It would be an annoyance to treat the release | |
4262 | of the button that chose the menu item | |
4263 | as a separate event. */ | |
4264 | ||
8c18cbfb | 4265 | if (!CONSP (start_pos)) |
48e416d4 RS |
4266 | return Qnil; |
4267 | ||
88cb0656 | 4268 | event->modifiers &= ~up_modifier; |
48e416d4 | 4269 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4270 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4271 | event->modifiers |= click_modifier; |
4272 | else | |
48e416d4 | 4273 | #endif |
dbc4e1c1 JB |
4274 | { |
4275 | /* The third element of every position should be the (x,y) | |
4276 | pair. */ | |
9b8eb840 | 4277 | Lisp_Object down; |
dbc4e1c1 | 4278 | |
9b8eb840 | 4279 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
4280 | if (EQ (event->x, XCONS (down)->car) |
4281 | && EQ (event->y, XCONS (down)->cdr)) | |
4282 | { | |
bc536d84 | 4283 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4284 | } |
4285 | else | |
4286 | { | |
559f9d04 | 4287 | button_down_time = 0; |
fbcd35bd JB |
4288 | event->modifiers |= drag_modifier; |
4289 | } | |
bc536d84 RS |
4290 | /* Don't check is_double; treat this as multiple |
4291 | if the down-event was multiple. */ | |
4292 | if (double_click_count > 1) | |
4293 | event->modifiers |= ((double_click_count > 2) | |
4294 | ? triple_modifier | |
4295 | : double_modifier); | |
dbc4e1c1 | 4296 | } |
88cb0656 JB |
4297 | } |
4298 | else | |
4299 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4300 | the up_modifier set. */ |
88cb0656 JB |
4301 | abort (); |
4302 | ||
88cb0656 | 4303 | { |
7b4aedb9 | 4304 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4305 | Lisp_Object head; |
4306 | ||
4307 | head = modify_event_symbol (button, | |
4308 | event->modifiers, | |
4309 | Qmouse_click, Qnil, | |
4310 | lispy_mouse_names, &mouse_syms, | |
4311 | (sizeof (lispy_mouse_names) | |
4312 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4313 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4314 | return Fcons (head, |
4315 | Fcons (start_pos, | |
4316 | Fcons (position, | |
4317 | Qnil))); | |
fbcd35bd JB |
4318 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4319 | return Fcons (head, | |
4320 | Fcons (position, | |
4321 | Fcons (make_number (double_click_count), | |
4322 | Qnil))); | |
88cb0656 JB |
4323 | else |
4324 | return Fcons (head, | |
7b4aedb9 | 4325 | Fcons (position, |
88cb0656 JB |
4326 | Qnil)); |
4327 | } | |
284f4730 | 4328 | } |
db08707d RS |
4329 | |
4330 | #ifdef WINDOWSNT | |
fbd6baed | 4331 | case w32_scroll_bar_click: |
db08707d RS |
4332 | { |
4333 | int button = event->code; | |
4334 | int is_double; | |
4335 | Lisp_Object position; | |
4336 | Lisp_Object *start_pos_ptr; | |
4337 | Lisp_Object start_pos; | |
4338 | ||
4339 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4340 | abort (); | |
4341 | ||
4342 | { | |
4343 | Lisp_Object window; | |
4344 | Lisp_Object portion_whole; | |
4345 | Lisp_Object part; | |
4346 | ||
4347 | window = event->frame_or_window; | |
4348 | portion_whole = Fcons (event->x, event->y); | |
4349 | part = *scroll_bar_parts[(int) event->part]; | |
4350 | ||
e8886a1d RS |
4351 | position |
4352 | = Fcons (window, | |
4353 | Fcons (Qvertical_scroll_bar, | |
4354 | Fcons (portion_whole, | |
4355 | Fcons (make_number (event->timestamp), | |
4356 | Fcons (part, Qnil))))); | |
db08707d RS |
4357 | } |
4358 | ||
fbd6baed | 4359 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4360 | event->modifiers |= click_modifier; |
4361 | ||
4362 | { | |
4363 | /* Get the symbol we should use for the mouse click. */ | |
4364 | Lisp_Object head; | |
4365 | ||
4366 | head = modify_event_symbol (button, | |
4367 | event->modifiers, | |
4368 | Qmouse_click, Qnil, | |
4369 | lispy_mouse_names, &mouse_syms, | |
4370 | (sizeof (lispy_mouse_names) | |
4371 | / sizeof (lispy_mouse_names[0]))); | |
4372 | return Fcons (head, | |
4373 | Fcons (position, | |
4374 | Qnil)); | |
4375 | } | |
4376 | } | |
07de30b9 GV |
4377 | case mouse_wheel: |
4378 | { | |
4379 | int part; | |
4380 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4381 | Lisp_Object window; | |
4382 | Lisp_Object posn; | |
4383 | Lisp_Object head, position; | |
4384 | int row, column; | |
4385 | ||
4386 | /* Ignore mouse events that were made on frame that | |
4387 | have been deleted. */ | |
4388 | if (! FRAME_LIVE_P (f)) | |
4389 | return Qnil; | |
4390 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4391 | &column, &row, NULL, 1); | |
4392 | window = window_from_coordinates (f, column, row, &part); | |
4393 | ||
4394 | if (!WINDOWP (window)) | |
4395 | { | |
4396 | window = event->frame_or_window; | |
4397 | posn = Qnil; | |
4398 | } | |
4399 | else | |
4400 | { | |
4401 | int pixcolumn, pixrow; | |
4402 | column -= XINT (XWINDOW (window)->left); | |
4403 | row -= XINT (XWINDOW (window)->top); | |
4404 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4405 | XSETINT (event->x, pixcolumn); | |
4406 | XSETINT (event->y, pixrow); | |
4407 | ||
4408 | if (part == 1) | |
4409 | posn = Qmode_line; | |
4410 | else if (part == 2) | |
4411 | posn = Qvertical_line; | |
4412 | else | |
4413 | XSETINT (posn, | |
4414 | buffer_posn_from_coords (XWINDOW (window), | |
4415 | column, row)); | |
4416 | } | |
db08707d | 4417 | |
07de30b9 GV |
4418 | { |
4419 | Lisp_Object head, position; | |
4420 | ||
4421 | position | |
4422 | = Fcons (window, | |
4423 | Fcons (posn, | |
4424 | Fcons (Fcons (event->x, event->y), | |
4425 | Fcons (make_number (event->timestamp), | |
4426 | Qnil)))); | |
4427 | ||
4428 | head = modify_event_symbol (0, event->modifiers, | |
4429 | Qmouse_wheel, Qnil, | |
4430 | lispy_mouse_wheel_names, | |
4431 | &mouse_wheel_syms, 1); | |
4432 | return Fcons (head, | |
4433 | Fcons (position, | |
4434 | Fcons (make_number (event->code), | |
4435 | Qnil))); | |
4436 | } | |
4437 | } | |
4438 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
4439 | |
4440 | case drag_n_drop: | |
4441 | { | |
4442 | int part; | |
4443 | FRAME_PTR f; | |
4444 | Lisp_Object window; | |
4445 | Lisp_Object posn; | |
4446 | Lisp_Object head, position; | |
4447 | Lisp_Object files; | |
4448 | int row, column; | |
4449 | ||
4450 | /* The frame_or_window field should be a cons of the frame in | |
4451 | which the event occurred and a list of the filenames | |
4452 | dropped. */ | |
4453 | if (! CONSP (event->frame_or_window)) | |
4454 | abort (); | |
4455 | ||
4456 | f = XFRAME (XCONS (event->frame_or_window)->car); | |
4457 | files = XCONS (event->frame_or_window)->cdr; | |
4458 | ||
4459 | /* Ignore mouse events that were made on frames that | |
4460 | have been deleted. */ | |
4461 | if (! FRAME_LIVE_P (f)) | |
4462 | return Qnil; | |
4463 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4464 | &column, &row, NULL, 1); | |
4465 | window = window_from_coordinates (f, column, row, &part); | |
4466 | ||
4467 | if (!WINDOWP (window)) | |
4468 | { | |
4469 | window = XCONS (event->frame_or_window)->car; | |
4470 | posn = Qnil; | |
4471 | } | |
4472 | else | |
4473 | { | |
4474 | int pixcolumn, pixrow; | |
4475 | column -= XINT (XWINDOW (window)->left); | |
4476 | row -= XINT (XWINDOW (window)->top); | |
4477 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4478 | XSETINT (event->x, pixcolumn); | |
4479 | XSETINT (event->y, pixrow); | |
4480 | ||
4481 | if (part == 1) | |
4482 | posn = Qmode_line; | |
4483 | else if (part == 2) | |
4484 | posn = Qvertical_line; | |
4485 | else | |
4486 | XSETINT (posn, | |
4487 | buffer_posn_from_coords (XWINDOW (window), | |
4488 | column, row)); | |
4489 | } | |
4490 | ||
4491 | { | |
4492 | Lisp_Object head, position; | |
4493 | ||
4494 | position | |
4495 | = Fcons (window, | |
4496 | Fcons (posn, | |
4497 | Fcons (Fcons (event->x, event->y), | |
4498 | Fcons (make_number (event->timestamp), | |
4499 | Qnil)))); | |
4500 | ||
4501 | head = modify_event_symbol (0, event->modifiers, | |
4502 | Qdrag_n_drop, Qnil, | |
4503 | lispy_drag_n_drop_names, | |
4504 | &drag_n_drop_syms, 1); | |
4505 | return Fcons (head, | |
4506 | Fcons (position, | |
4507 | Fcons (files, | |
4508 | Qnil))); | |
4509 | } | |
4510 | } | |
514354e9 | 4511 | #endif /* HAVE_MOUSE */ |
284f4730 | 4512 | |
e98a93eb | 4513 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4514 | case menu_bar_event: |
4515 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4516 | if (!CONSP (event->frame_or_window)) | |
4517 | abort (); | |
4518 | return XCONS (event->frame_or_window)->cdr; | |
4519 | #endif | |
4520 | ||
284f4730 JB |
4521 | /* The 'kind' field of the event is something we don't recognize. */ |
4522 | default: | |
48e416d4 | 4523 | abort (); |
284f4730 JB |
4524 | } |
4525 | } | |
4526 | ||
514354e9 | 4527 | #ifdef HAVE_MOUSE |
6cbff1cb | 4528 | |
284f4730 | 4529 | static Lisp_Object |
7b4aedb9 | 4530 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4531 | FRAME_PTR frame; |
7b4aedb9 | 4532 | Lisp_Object bar_window; |
3c370943 | 4533 | enum scroll_bar_part part; |
284f4730 | 4534 | Lisp_Object x, y; |
e5d77022 | 4535 | unsigned long time; |
284f4730 | 4536 | { |
3c370943 | 4537 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4538 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4539 | { |
9b8eb840 | 4540 | Lisp_Object part_sym; |
4bb994d1 | 4541 | |
9b8eb840 | 4542 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4543 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4544 | (Fcons (Fcons (bar_window, |
3c370943 | 4545 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4546 | Fcons (Fcons (x, y), |
4547 | Fcons (make_number (time), | |
cb5df6ae | 4548 | Fcons (part_sym, |
4bb994d1 JB |
4549 | Qnil))))), |
4550 | Qnil))); | |
4551 | } | |
4552 | ||
4553 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4554 | else |
4555 | { | |
4bb994d1 | 4556 | int area; |
9e20143a | 4557 | Lisp_Object window; |
4bb994d1 | 4558 | Lisp_Object posn; |
9e20143a RS |
4559 | int column, row; |
4560 | ||
9e20143a | 4561 | if (frame) |
047688cb RS |
4562 | { |
4563 | /* It's in a frame; which window on that frame? */ | |
6c6a9be8 KH |
4564 | pixel_to_glyph_coords (frame, XINT (x), XINT (y), &column, &row, |
4565 | NULL, 1); | |
047688cb RS |
4566 | window = window_from_coordinates (frame, column, row, &area); |
4567 | } | |
9e20143a RS |
4568 | else |
4569 | window = Qnil; | |
4bb994d1 | 4570 | |
8c18cbfb | 4571 | if (WINDOWP (window)) |
4bb994d1 | 4572 | { |
9e20143a | 4573 | int pixcolumn, pixrow; |
c8738c33 | 4574 | column -= WINDOW_LEFT_MARGIN (XWINDOW (window)); |
9e20143a RS |
4575 | row -= XINT (XWINDOW (window)->top); |
4576 | glyph_to_pixel_coords (frame, column, row, &pixcolumn, &pixrow); | |
4577 | XSETINT (x, pixcolumn); | |
4578 | XSETINT (y, pixrow); | |
4bb994d1 JB |
4579 | |
4580 | if (area == 1) | |
4581 | posn = Qmode_line; | |
4582 | else if (area == 2) | |
4583 | posn = Qvertical_line; | |
4584 | else | |
18cd2eeb KH |
4585 | XSETINT (posn, |
4586 | buffer_posn_from_coords (XWINDOW (window), column, row)); | |
4bb994d1 | 4587 | } |
e9bf89a0 RS |
4588 | else if (frame != 0) |
4589 | { | |
18cd2eeb | 4590 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4591 | posn = Qnil; |
4592 | } | |
284f4730 | 4593 | else |
4bb994d1 JB |
4594 | { |
4595 | window = Qnil; | |
4596 | posn = Qnil; | |
bb9e9bed KH |
4597 | XSETFASTINT (x, 0); |
4598 | XSETFASTINT (y, 0); | |
4bb994d1 | 4599 | } |
284f4730 | 4600 | |
4bb994d1 JB |
4601 | return Fcons (Qmouse_movement, |
4602 | Fcons (Fcons (window, | |
4603 | Fcons (posn, | |
4604 | Fcons (Fcons (x, y), | |
4605 | Fcons (make_number (time), | |
4606 | Qnil)))), | |
4607 | Qnil)); | |
4608 | } | |
284f4730 JB |
4609 | } |
4610 | ||
514354e9 | 4611 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4612 | |
cd21b839 JB |
4613 | /* Construct a switch frame event. */ |
4614 | static Lisp_Object | |
4615 | make_lispy_switch_frame (frame) | |
4616 | Lisp_Object frame; | |
4617 | { | |
4618 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4619 | } | |
0a7f1fc0 JB |
4620 | \f |
4621 | /* Manipulating modifiers. */ | |
284f4730 | 4622 | |
0a7f1fc0 | 4623 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4624 | |
0a7f1fc0 JB |
4625 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4626 | SYMBOL's name of the end of the modifiers; the string from this | |
4627 | position is the unmodified symbol name. | |
284f4730 | 4628 | |
0a7f1fc0 | 4629 | This doesn't use any caches. */ |
6da3dd3a | 4630 | |
0a7f1fc0 JB |
4631 | static int |
4632 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4633 | Lisp_Object symbol; |
0a7f1fc0 | 4634 | int *modifier_end; |
284f4730 JB |
4635 | { |
4636 | struct Lisp_String *name; | |
4637 | int i; | |
4638 | int modifiers; | |
284f4730 JB |
4639 | |
4640 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4641 | |
284f4730 JB |
4642 | modifiers = 0; |
4643 | name = XSYMBOL (symbol)->name; | |
4644 | ||
fc932ac6 | 4645 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
4646 | { |
4647 | int this_mod_end = 0; | |
4648 | int this_mod = 0; | |
284f4730 | 4649 | |
6da3dd3a RS |
4650 | /* See if the name continues with a modifier word. |
4651 | Check that the word appears, but don't check what follows it. | |
4652 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4653 | |
6da3dd3a RS |
4654 | switch (name->data[i]) |
4655 | { | |
4656 | #define SINGLE_LETTER_MOD(BIT) \ | |
4657 | (this_mod_end = i + 1, this_mod = BIT) | |
4658 | ||
6da3dd3a RS |
4659 | case 'A': |
4660 | SINGLE_LETTER_MOD (alt_modifier); | |
4661 | break; | |
284f4730 | 4662 | |
6da3dd3a RS |
4663 | case 'C': |
4664 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4665 | break; | |
284f4730 | 4666 | |
6da3dd3a RS |
4667 | case 'H': |
4668 | SINGLE_LETTER_MOD (hyper_modifier); | |
4669 | break; | |
4670 | ||
6da3dd3a RS |
4671 | case 'M': |
4672 | SINGLE_LETTER_MOD (meta_modifier); | |
4673 | break; | |
4674 | ||
6da3dd3a RS |
4675 | case 'S': |
4676 | SINGLE_LETTER_MOD (shift_modifier); | |
4677 | break; | |
4678 | ||
4679 | case 's': | |
6da3dd3a RS |
4680 | SINGLE_LETTER_MOD (super_modifier); |
4681 | break; | |
4682 | ||
0a7f1fc0 | 4683 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4684 | } |
4685 | ||
4686 | /* If we found no modifier, stop looking for them. */ | |
4687 | if (this_mod_end == 0) | |
4688 | break; | |
4689 | ||
4690 | /* Check there is a dash after the modifier, so that it | |
4691 | really is a modifier. */ | |
fc932ac6 RS |
4692 | if (this_mod_end >= STRING_BYTES (name) |
4693 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
4694 | break; |
4695 | ||
4696 | /* This modifier is real; look for another. */ | |
4697 | modifiers |= this_mod; | |
4698 | i = this_mod_end + 1; | |
4699 | } | |
284f4730 | 4700 | |
0a7f1fc0 | 4701 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4702 | if (! (modifiers & (down_modifier | drag_modifier |
4703 | | double_modifier | triple_modifier)) | |
fc932ac6 | 4704 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 4705 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4706 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4707 | modifiers |= click_modifier; |
4708 | ||
4709 | if (modifier_end) | |
4710 | *modifier_end = i; | |
4711 | ||
4712 | return modifiers; | |
4713 | } | |
4714 | ||
0a7f1fc0 JB |
4715 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4716 | prepended to the string BASE[0..BASE_LEN-1]. | |
4717 | This doesn't use any caches. */ | |
4718 | static Lisp_Object | |
301738ed | 4719 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4720 | int modifiers; |
4721 | char *base; | |
301738ed | 4722 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4723 | { |
4724 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4725 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4726 | reference to it. */ | |
301738ed RS |
4727 | char *new_mods |
4728 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 4729 | int mod_len; |
284f4730 | 4730 | |
284f4730 | 4731 | { |
0a7f1fc0 JB |
4732 | char *p = new_mods; |
4733 | ||
4734 | /* Only the event queue may use the `up' modifier; it should always | |
4735 | be turned into a click or drag event before presented to lisp code. */ | |
4736 | if (modifiers & up_modifier) | |
4737 | abort (); | |
4738 | ||
4739 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
4740 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
4741 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
4742 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
4743 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 4744 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
4745 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
4746 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
4747 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
4748 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
4749 | /* The click modifier is denoted by the absence of other modifiers. */ |
4750 | ||
4751 | *p = '\0'; | |
4752 | ||
4753 | mod_len = p - new_mods; | |
4754 | } | |
284f4730 | 4755 | |
0a7f1fc0 | 4756 | { |
9b8eb840 | 4757 | Lisp_Object new_name; |
df0f2ba1 | 4758 | |
301738ed RS |
4759 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
4760 | mod_len + base_len_byte); | |
0a7f1fc0 | 4761 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 4762 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
4763 | |
4764 | return Fintern (new_name, Qnil); | |
4765 | } | |
4766 | } | |
4767 | ||
4768 | ||
0a7f1fc0 JB |
4769 | static char *modifier_names[] = |
4770 | { | |
fbcd35bd | 4771 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 4772 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 4773 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 4774 | }; |
80645119 | 4775 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
4776 | |
4777 | static Lisp_Object modifier_symbols; | |
4778 | ||
4779 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
4780 | static Lisp_Object | |
4781 | lispy_modifier_list (modifiers) | |
4782 | int modifiers; | |
4783 | { | |
4784 | Lisp_Object modifier_list; | |
4785 | int i; | |
4786 | ||
4787 | modifier_list = Qnil; | |
80645119 | 4788 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 4789 | if (modifiers & (1<<i)) |
80645119 JB |
4790 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
4791 | modifier_list); | |
0a7f1fc0 JB |
4792 | |
4793 | return modifier_list; | |
4794 | } | |
4795 | ||
4796 | ||
4797 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
4798 | where UNMODIFIED is the unmodified form of SYMBOL, | |
4799 | MASK is the set of modifiers present in SYMBOL's name. | |
4800 | This is similar to parse_modifiers_uncached, but uses the cache in | |
4801 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
4802 | Qevent_symbol_elements property. */ | |
3d31316f | 4803 | |
1161d367 | 4804 | Lisp_Object |
0a7f1fc0 JB |
4805 | parse_modifiers (symbol) |
4806 | Lisp_Object symbol; | |
4807 | { | |
9b8eb840 | 4808 | Lisp_Object elements; |
0a7f1fc0 | 4809 | |
9b8eb840 | 4810 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
4811 | if (CONSP (elements)) |
4812 | return elements; | |
4813 | else | |
4814 | { | |
4815 | int end; | |
ec0faad2 | 4816 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 4817 | Lisp_Object unmodified; |
0a7f1fc0 JB |
4818 | Lisp_Object mask; |
4819 | ||
9b8eb840 | 4820 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 4821 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
4822 | Qnil); |
4823 | ||
ec0faad2 | 4824 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 4825 | abort (); |
bb9e9bed | 4826 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
4827 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
4828 | ||
4829 | /* Cache the parsing results on SYMBOL. */ | |
4830 | Fput (symbol, Qevent_symbol_element_mask, | |
4831 | elements); | |
4832 | Fput (symbol, Qevent_symbol_elements, | |
4833 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
4834 | ||
4835 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
4836 | it would be nice to put that in unmodified's cache. | |
4837 | But we can't, since we're not sure that parse_modifiers is | |
4838 | canonical. */ | |
4839 | ||
4840 | return elements; | |
4841 | } | |
4842 | } | |
4843 | ||
4844 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
4845 | BASE must be unmodified. | |
4846 | ||
4847 | This is like apply_modifiers_uncached, but uses BASE's | |
4848 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
4849 | Qevent_symbol_elements properties, since it has that info anyway. |
4850 | ||
4851 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
4852 | the modified symbol. */ | |
0a7f1fc0 JB |
4853 | static Lisp_Object |
4854 | apply_modifiers (modifiers, base) | |
4855 | int modifiers; | |
4856 | Lisp_Object base; | |
4857 | { | |
7b4aedb9 | 4858 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 4859 | |
80645119 | 4860 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 4861 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 4862 | |
0a7f1fc0 | 4863 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 4864 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 4865 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 4866 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
4867 | |
4868 | if (CONSP (entry)) | |
7b4aedb9 JB |
4869 | new_symbol = XCONS (entry)->cdr; |
4870 | else | |
4871 | { | |
df0f2ba1 | 4872 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
4873 | new_symbol = apply_modifiers_uncached (modifiers, |
4874 | XSYMBOL (base)->name->data, | |
301738ed | 4875 | XSYMBOL (base)->name->size, |
fc932ac6 | 4876 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
4877 | |
4878 | /* Add the new symbol to the base's cache. */ | |
4879 | entry = Fcons (index, new_symbol); | |
4880 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
4881 | ||
4882 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 4883 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
4884 | Fput (new_symbol, Qevent_symbol_element_mask, |
4885 | Fcons (base, Fcons (index, Qnil))); | |
4886 | Fput (new_symbol, Qevent_symbol_elements, | |
4887 | Fcons (base, lispy_modifier_list (modifiers))); | |
4888 | } | |
0a7f1fc0 | 4889 | |
df0f2ba1 | 4890 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
4891 | |
4892 | You'd think we could just set this once and for all when we | |
4893 | intern the symbol above, but reorder_modifiers may call us when | |
4894 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
4895 | because it has a Qmodifier_cache property it must have its |
4896 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
4897 | if (NILP (Fget (new_symbol, Qevent_kind))) |
4898 | { | |
9b8eb840 | 4899 | Lisp_Object kind; |
7b4aedb9 | 4900 | |
9b8eb840 | 4901 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
4902 | if (! NILP (kind)) |
4903 | Fput (new_symbol, Qevent_kind, kind); | |
4904 | } | |
4905 | ||
4906 | return new_symbol; | |
0a7f1fc0 JB |
4907 | } |
4908 | ||
4909 | ||
4910 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
4911 | return a symbol with the modifiers placed in the canonical order. | |
4912 | Canonical order is alphabetical, except for down and drag, which | |
4913 | always come last. The 'click' modifier is never written out. | |
4914 | ||
4915 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
4916 | and M-C-foo end up being equivalent in the keymap. */ | |
4917 | ||
4918 | Lisp_Object | |
4919 | reorder_modifiers (symbol) | |
4920 | Lisp_Object symbol; | |
4921 | { | |
4922 | /* It's hopefully okay to write the code this way, since everything | |
4923 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 4924 | Lisp_Object parsed; |
0a7f1fc0 | 4925 | |
9b8eb840 | 4926 | parsed = parse_modifiers (symbol); |
54593ed9 | 4927 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
4928 | XCONS (parsed)->car); |
4929 | } | |
4930 | ||
4931 | ||
284f4730 JB |
4932 | /* For handling events, we often want to produce a symbol whose name |
4933 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
4934 | to some base, like the name of a function key or mouse button. | |
4935 | modify_event_symbol produces symbols of this sort. | |
4936 | ||
4937 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
4938 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
4939 | in the table. | |
4940 | ||
80e4aa30 RS |
4941 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
4942 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
4943 | ||
284f4730 JB |
4944 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
4945 | persist between calls to modify_event_symbol that it can use to | |
4946 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 4947 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
4948 | |
4949 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 4950 | |
284f4730 JB |
4951 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
4952 | whose prefixes should be applied to the symbol name. | |
4953 | ||
4954 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 4955 | the returned symbol. |
88cb0656 JB |
4956 | |
4957 | The symbols we create are supposed to have an | |
eb8c3be9 | 4958 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
4959 | in the symbol's name. */ |
4960 | ||
284f4730 | 4961 | static Lisp_Object |
80e4aa30 RS |
4962 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
4963 | name_table, symbol_table, table_size) | |
284f4730 JB |
4964 | int symbol_num; |
4965 | unsigned modifiers; | |
4966 | Lisp_Object symbol_kind; | |
80e4aa30 | 4967 | Lisp_Object name_alist; |
284f4730 JB |
4968 | char **name_table; |
4969 | Lisp_Object *symbol_table; | |
2c834fb3 | 4970 | unsigned int table_size; |
284f4730 | 4971 | { |
80e4aa30 RS |
4972 | Lisp_Object value; |
4973 | Lisp_Object symbol_int; | |
4974 | ||
2c834fb3 KH |
4975 | /* Get rid of the "vendor-specific" bit here. */ |
4976 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
4977 | |
4978 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 4979 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 4980 | return Qnil; |
284f4730 | 4981 | |
80e4aa30 RS |
4982 | if (CONSP (*symbol_table)) |
4983 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
4984 | ||
0a7f1fc0 | 4985 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 4986 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
4987 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
4988 | we've never used that symbol before. */ | |
80e4aa30 | 4989 | else |
88cb0656 | 4990 | { |
80e4aa30 RS |
4991 | if (! VECTORP (*symbol_table) |
4992 | || XVECTOR (*symbol_table)->size != table_size) | |
4993 | { | |
4994 | Lisp_Object size; | |
0a7f1fc0 | 4995 | |
bb9e9bed | 4996 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
4997 | *symbol_table = Fmake_vector (size, Qnil); |
4998 | } | |
284f4730 | 4999 | |
80e4aa30 RS |
5000 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5001 | } | |
284f4730 | 5002 | |
0a7f1fc0 | 5003 | /* Have we already used this symbol before? */ |
80e4aa30 | 5004 | if (NILP (value)) |
284f4730 | 5005 | { |
0a7f1fc0 | 5006 | /* No; let's create it. */ |
80e4aa30 | 5007 | if (!NILP (name_alist)) |
b64b4075 | 5008 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 5009 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5010 | value = intern (name_table[symbol_num]); |
b64b4075 | 5011 | |
e98a93eb | 5012 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5013 | if (NILP (value)) |
5014 | { | |
5015 | char *name = x_get_keysym_name (symbol_num); | |
5016 | if (name) | |
5017 | value = intern (name); | |
5018 | } | |
5019 | #endif | |
5020 | ||
b64b4075 | 5021 | if (NILP (value)) |
d1f50460 RS |
5022 | { |
5023 | char buf[20]; | |
5024 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5025 | value = intern (buf); |
d1f50460 | 5026 | } |
0a7f1fc0 | 5027 | |
80e4aa30 | 5028 | if (CONSP (*symbol_table)) |
4205cb08 | 5029 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5030 | else |
5031 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5032 | ||
df0f2ba1 | 5033 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5034 | builds the Qevent_symbol_elements property, which the user |
5035 | cares about. */ | |
80e4aa30 RS |
5036 | apply_modifiers (modifiers & click_modifier, value); |
5037 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5038 | } |
88cb0656 | 5039 | |
0a7f1fc0 | 5040 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5041 | return apply_modifiers (modifiers, value); |
284f4730 | 5042 | } |
6da3dd3a RS |
5043 | \f |
5044 | /* Convert a list that represents an event type, | |
5045 | such as (ctrl meta backspace), into the usual representation of that | |
5046 | event type as a number or a symbol. */ | |
5047 | ||
a1706c30 | 5048 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5049 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5050 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5051 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5052 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5053 | The return value is an event type (a character or symbol) which\n\ |
5054 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5055 | (event_desc) |
5056 | Lisp_Object event_desc; | |
6da3dd3a RS |
5057 | { |
5058 | Lisp_Object base; | |
5059 | int modifiers = 0; | |
5060 | Lisp_Object rest; | |
5061 | ||
5062 | base = Qnil; | |
e57d8fd8 | 5063 | rest = event_desc; |
6da3dd3a RS |
5064 | while (CONSP (rest)) |
5065 | { | |
5066 | Lisp_Object elt; | |
5067 | int this = 0; | |
5068 | ||
5069 | elt = XCONS (rest)->car; | |
377f24f5 | 5070 | rest = XCONS (rest)->cdr; |
6da3dd3a | 5071 | |
3d31316f | 5072 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5073 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5074 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5075 | |
5076 | if (this != 0) | |
5077 | modifiers |= this; | |
5078 | else if (!NILP (base)) | |
5079 | error ("Two bases given in one event"); | |
5080 | else | |
5081 | base = elt; | |
5082 | ||
6da3dd3a RS |
5083 | } |
5084 | ||
3d31316f RS |
5085 | /* Let the symbol A refer to the character A. */ |
5086 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5087 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5088 | ||
6da3dd3a RS |
5089 | if (INTEGERP (base)) |
5090 | { | |
3d31316f RS |
5091 | /* Turn (shift a) into A. */ |
5092 | if ((modifiers & shift_modifier) != 0 | |
5093 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5094 | { | |
5095 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5096 | modifiers &= ~shift_modifier; | |
5097 | } | |
5098 | ||
5099 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5100 | if (modifiers & ctrl_modifier) |
3d31316f | 5101 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5102 | | make_ctrl_char (XINT (base))); |
5103 | else | |
5104 | return make_number (modifiers | XINT (base)); | |
5105 | } | |
5106 | else if (SYMBOLP (base)) | |
5107 | return apply_modifiers (modifiers, base); | |
5108 | else | |
5109 | error ("Invalid base event"); | |
5110 | } | |
5111 | ||
3d31316f RS |
5112 | /* Try to recognize SYMBOL as a modifier name. |
5113 | Return the modifier flag bit, or 0 if not recognized. */ | |
5114 | ||
5115 | static int | |
5116 | parse_solitary_modifier (symbol) | |
5117 | Lisp_Object symbol; | |
5118 | { | |
5119 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5120 | ||
5121 | switch (name->data[0]) | |
5122 | { | |
5123 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5124 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5125 | return BIT; |
5126 | ||
5127 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5128 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5129 | && ! strncmp (name->data, NAME, LEN)) \ |
5130 | return BIT; | |
5131 | ||
5132 | case 'A': | |
5133 | SINGLE_LETTER_MOD (alt_modifier); | |
5134 | break; | |
5135 | ||
5136 | case 'a': | |
5137 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5138 | break; | |
5139 | ||
5140 | case 'C': | |
5141 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5142 | break; | |
5143 | ||
5144 | case 'c': | |
5145 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5146 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5147 | break; | |
5148 | ||
5149 | case 'H': | |
5150 | SINGLE_LETTER_MOD (hyper_modifier); | |
5151 | break; | |
5152 | ||
5153 | case 'h': | |
5154 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5155 | break; | |
5156 | ||
5157 | case 'M': | |
5158 | SINGLE_LETTER_MOD (meta_modifier); | |
5159 | break; | |
5160 | ||
5161 | case 'm': | |
5162 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5163 | break; | |
5164 | ||
5165 | case 'S': | |
5166 | SINGLE_LETTER_MOD (shift_modifier); | |
5167 | break; | |
5168 | ||
5169 | case 's': | |
5170 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5171 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5172 | SINGLE_LETTER_MOD (super_modifier); | |
5173 | break; | |
5174 | ||
5175 | case 'd': | |
5176 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5177 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5178 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5179 | break; | |
5180 | ||
5181 | case 't': | |
5182 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5183 | break; | |
5184 | ||
5185 | #undef SINGLE_LETTER_MOD | |
5186 | #undef MULTI_LETTER_MOD | |
5187 | } | |
5188 | ||
5189 | return 0; | |
5190 | } | |
5191 | ||
6da3dd3a RS |
5192 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5193 | Such a list is not valid as an event, | |
5194 | but it can be a Lucid-style event type list. */ | |
5195 | ||
5196 | int | |
5197 | lucid_event_type_list_p (object) | |
5198 | Lisp_Object object; | |
5199 | { | |
5200 | Lisp_Object tail; | |
5201 | ||
5202 | if (! CONSP (object)) | |
5203 | return 0; | |
5204 | ||
5205 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
5206 | { | |
5207 | Lisp_Object elt; | |
5208 | elt = XCONS (tail)->car; | |
5209 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
5210 | return 0; | |
5211 | } | |
5212 | ||
5213 | return NILP (tail); | |
5214 | } | |
284f4730 | 5215 | \f |
284f4730 JB |
5216 | /* Store into *addr a value nonzero if terminal input chars are available. |
5217 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5218 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5219 | (In fact, this may actually read some input.) |
5220 | ||
5221 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5222 | |
5223 | static void | |
d9d4c147 | 5224 | get_input_pending (addr, do_timers_now) |
284f4730 | 5225 | int *addr; |
d9d4c147 | 5226 | int do_timers_now; |
284f4730 JB |
5227 | { |
5228 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5229 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5230 | |
5231 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5232 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5233 | return; | |
5234 | ||
5235 | /* Try to read some input and see how much we get. */ | |
5236 | gobble_input (0); | |
d9d4c147 | 5237 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5238 | } |
5239 | ||
81931ba1 | 5240 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 5241 | |
07a59269 | 5242 | void |
284f4730 JB |
5243 | gobble_input (expected) |
5244 | int expected; | |
5245 | { | |
5246 | #ifndef VMS | |
5247 | #ifdef SIGIO | |
5248 | if (interrupt_input) | |
5249 | { | |
32676c08 | 5250 | SIGMASKTYPE mask; |
4f8aaa74 | 5251 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 5252 | read_avail_input (expected); |
e065a56e | 5253 | sigsetmask (mask); |
284f4730 JB |
5254 | } |
5255 | else | |
81931ba1 RS |
5256 | #ifdef POLL_FOR_INPUT |
5257 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
5258 | { | |
5259 | SIGMASKTYPE mask; | |
4f8aaa74 | 5260 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
5261 | read_avail_input (expected); |
5262 | sigsetmask (mask); | |
5263 | } | |
5264 | else | |
87485d6f | 5265 | #endif |
284f4730 JB |
5266 | #endif |
5267 | read_avail_input (expected); | |
5268 | #endif | |
5269 | } | |
a8015ab5 | 5270 | |
241ceaf7 RS |
5271 | /* Put a buffer_switch_event in the buffer |
5272 | so that read_key_sequence will notice the new current buffer. */ | |
5273 | ||
07a59269 | 5274 | void |
a8015ab5 KH |
5275 | record_asynch_buffer_change () |
5276 | { | |
5277 | struct input_event event; | |
a30f0615 RS |
5278 | Lisp_Object tem; |
5279 | ||
a8015ab5 KH |
5280 | event.kind = buffer_switch_event; |
5281 | event.frame_or_window = Qnil; | |
241ceaf7 | 5282 | |
f65e6f7d | 5283 | #ifdef subprocesses |
a30f0615 RS |
5284 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
5285 | The purpose of the event is to make read_key_sequence look up the | |
5286 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
5287 | and the event could cause trouble by messing up (input-pending-p). */ | |
5288 | tem = Fwaiting_for_user_input_p (); | |
5289 | if (NILP (tem)) | |
5290 | return; | |
f65e6f7d RS |
5291 | #else |
5292 | /* We never need these events if we have no asynchronous subprocesses. */ | |
5293 | return; | |
5294 | #endif | |
a30f0615 | 5295 | |
241ceaf7 RS |
5296 | /* Make sure no interrupt happens while storing the event. */ |
5297 | #ifdef SIGIO | |
5298 | if (interrupt_input) | |
5299 | { | |
5300 | SIGMASKTYPE mask; | |
4f8aaa74 | 5301 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
5302 | kbd_buffer_store_event (&event); |
5303 | sigsetmask (mask); | |
5304 | } | |
5305 | else | |
5306 | #endif | |
5307 | { | |
5308 | stop_polling (); | |
5309 | kbd_buffer_store_event (&event); | |
5310 | start_polling (); | |
5311 | } | |
a8015ab5 | 5312 | } |
284f4730 JB |
5313 | \f |
5314 | #ifndef VMS | |
5315 | ||
5316 | /* Read any terminal input already buffered up by the system | |
5317 | into the kbd_buffer, but do not wait. | |
5318 | ||
5319 | EXPECTED should be nonzero if the caller knows there is some input. | |
5320 | ||
5321 | Except on VMS, all input is read by this function. | |
5322 | If interrupt_input is nonzero, this function MUST be called | |
5323 | only when SIGIO is blocked. | |
5324 | ||
5325 | Returns the number of keyboard chars read, or -1 meaning | |
5326 | this is a bad time to try to read input. */ | |
5327 | ||
5328 | static int | |
5329 | read_avail_input (expected) | |
5330 | int expected; | |
5331 | { | |
5332 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5333 | register int i; | |
5334 | int nread; | |
5335 | ||
5336 | if (read_socket_hook) | |
5337 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5338 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5339 | else |
5340 | { | |
17270835 RS |
5341 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5342 | the kbd_buffer can really hold. That may prevent loss | |
5343 | of characters on some systems when input is stuffed at us. */ | |
5344 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5345 | int n_to_read; |
284f4730 | 5346 | |
58788063 | 5347 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5348 | #ifdef WINDOWSNT |
5349 | return 0; | |
5350 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5351 | #ifdef MSDOS |
58788063 RS |
5352 | n_to_read = dos_keysns (); |
5353 | if (n_to_read == 0) | |
5354 | return 0; | |
c3a2738c | 5355 | #else /* not MSDOS */ |
284f4730 JB |
5356 | #ifdef FIONREAD |
5357 | /* Find out how much input is available. */ | |
437f6112 | 5358 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5359 | /* Formerly simply reported no input, but that sometimes led to |
5360 | a failure of Emacs to terminate. | |
5361 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5362 | /* ??? Is it really right to send the signal just to this process |
5363 | rather than to the whole process group? | |
5364 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5365 | kill (getpid (), SIGHUP); |
58788063 | 5366 | if (n_to_read == 0) |
284f4730 | 5367 | return 0; |
58788063 RS |
5368 | if (n_to_read > sizeof cbuf) |
5369 | n_to_read = sizeof cbuf; | |
284f4730 | 5370 | #else /* no FIONREAD */ |
0c04a67e | 5371 | #if defined (USG) || defined (DGUX) |
284f4730 | 5372 | /* Read some input if available, but don't wait. */ |
58788063 | 5373 | n_to_read = sizeof cbuf; |
437f6112 | 5374 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5375 | #else |
5376 | you lose; | |
5377 | #endif | |
5378 | #endif | |
80e4aa30 | 5379 | #endif /* not MSDOS */ |
bc536d84 | 5380 | #endif /* not WINDOWSNT */ |
284f4730 | 5381 | |
58788063 RS |
5382 | /* Now read; for one reason or another, this will not block. |
5383 | NREAD is set to the number of chars read. */ | |
9134775b | 5384 | do |
284f4730 | 5385 | { |
80e4aa30 | 5386 | #ifdef MSDOS |
0c04a67e | 5387 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5388 | nread = 1; |
5389 | #else | |
437f6112 | 5390 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5391 | #endif |
49854566 RS |
5392 | /* POSIX infers that processes which are not in the session leader's |
5393 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 5394 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
5395 | when the control tty is taken away. |
5396 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5397 | if (nread == -1 && errno == EIO) | |
5398 | kill (0, SIGHUP); | |
762f2b92 | 5399 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5400 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5401 | This looks incorrect, but it isn't, because _BSD causes | |
5402 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5403 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5404 | if (nread == 0) |
80e4aa30 | 5405 | kill (0, SIGHUP); |
284f4730 | 5406 | #endif |
9134775b | 5407 | } |
791587ee KH |
5408 | while ( |
5409 | /* We used to retry the read if it was interrupted. | |
5410 | But this does the wrong thing when O_NDELAY causes | |
5411 | an EAGAIN error. Does anybody know of a situation | |
5412 | where a retry is actually needed? */ | |
5413 | #if 0 | |
5414 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5415 | #ifdef EFAULT |
9134775b | 5416 | || errno == EFAULT |
80e4aa30 | 5417 | #endif |
284f4730 | 5418 | #ifdef EBADSLT |
9134775b | 5419 | || errno == EBADSLT |
284f4730 | 5420 | #endif |
791587ee KH |
5421 | ) |
5422 | #else | |
5423 | 0 | |
5424 | #endif | |
5425 | ); | |
284f4730 JB |
5426 | |
5427 | #ifndef FIONREAD | |
02c2c53f | 5428 | #if defined (USG) || defined (DGUX) |
437f6112 | 5429 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5430 | #endif /* USG or DGUX */ |
284f4730 JB |
5431 | #endif /* no FIONREAD */ |
5432 | for (i = 0; i < nread; i++) | |
5433 | { | |
5434 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5435 | buf[i].modifiers = 0; |
b04904fb | 5436 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5437 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5438 | if (meta_key != 2) |
5439 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5440 | |
5441 | buf[i].code = cbuf[i]; | |
18cd2eeb | 5442 | XSETFRAME (buf[i].frame_or_window, selected_frame); |
284f4730 JB |
5443 | } |
5444 | } | |
5445 | ||
5446 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5447 | for (i = 0; i < nread; i++) | |
5448 | { | |
5449 | kbd_buffer_store_event (&buf[i]); | |
5450 | /* Don't look at input that follows a C-g too closely. | |
5451 | This reduces lossage due to autorepeat on C-g. */ | |
5452 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5453 | && buf[i].code == quit_char) |
284f4730 JB |
5454 | break; |
5455 | } | |
5456 | ||
5457 | return nread; | |
5458 | } | |
5459 | #endif /* not VMS */ | |
5460 | \f | |
5461 | #ifdef SIGIO /* for entire page */ | |
5462 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5463 | ||
2ce30ea2 | 5464 | SIGTYPE |
284f4730 JB |
5465 | input_available_signal (signo) |
5466 | int signo; | |
5467 | { | |
5468 | /* Must preserve main program's value of errno. */ | |
5469 | int old_errno = errno; | |
5470 | #ifdef BSD4_1 | |
5471 | extern int select_alarmed; | |
5472 | #endif | |
5473 | ||
5970a8cb | 5474 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5475 | /* USG systems forget handlers when they are used; |
5476 | must reestablish each time */ | |
5477 | signal (signo, input_available_signal); | |
5478 | #endif /* USG */ | |
5479 | ||
5480 | #ifdef BSD4_1 | |
5481 | sigisheld (SIGIO); | |
5482 | #endif | |
5483 | ||
ffd56f97 JB |
5484 | if (input_available_clear_time) |
5485 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5486 | |
5487 | while (1) | |
5488 | { | |
5489 | int nread; | |
5490 | nread = read_avail_input (1); | |
5491 | /* -1 means it's not ok to read the input now. | |
5492 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5493 | 0 means there was no keyboard input available. */ | |
5494 | if (nread <= 0) | |
5495 | break; | |
5496 | ||
5497 | #ifdef BSD4_1 | |
5498 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5499 | #endif | |
5500 | } | |
5501 | ||
5502 | #ifdef BSD4_1 | |
5503 | sigfree (); | |
5504 | #endif | |
5505 | errno = old_errno; | |
5506 | } | |
5507 | #endif /* SIGIO */ | |
ad163903 JB |
5508 | |
5509 | /* Send ourselves a SIGIO. | |
5510 | ||
5511 | This function exists so that the UNBLOCK_INPUT macro in | |
5512 | blockinput.h can have some way to take care of input we put off | |
5513 | dealing with, without assuming that every file which uses | |
5514 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5515 | void | |
5516 | reinvoke_input_signal () | |
5517 | { | |
df0f2ba1 | 5518 | #ifdef SIGIO |
87dd9b9b | 5519 | kill (getpid (), SIGIO); |
ad163903 JB |
5520 | #endif |
5521 | } | |
5522 | ||
5523 | ||
284f4730 JB |
5524 | \f |
5525 | /* Return the prompt-string of a sparse keymap. | |
5526 | This is the first element which is a string. | |
5527 | Return nil if there is none. */ | |
5528 | ||
5529 | Lisp_Object | |
5530 | map_prompt (map) | |
5531 | Lisp_Object map; | |
5532 | { | |
5533 | while (CONSP (map)) | |
5534 | { | |
5535 | register Lisp_Object tem; | |
5536 | tem = Fcar (map); | |
8c18cbfb | 5537 | if (STRINGP (tem)) |
284f4730 JB |
5538 | return tem; |
5539 | map = Fcdr (map); | |
5540 | } | |
5541 | return Qnil; | |
5542 | } | |
5543 | ||
b7c49376 RS |
5544 | static void menu_bar_item (); |
5545 | static void menu_bar_one_keymap (); | |
5546 | ||
5547 | /* These variables hold the vector under construction within | |
5548 | menu_bar_items and its subroutines, and the current index | |
5549 | for storing into that vector. */ | |
5550 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5551 | static int menu_bar_items_index; |
5ec75a55 | 5552 | |
b7c49376 RS |
5553 | /* Return a vector of menu items for a menu bar, appropriate |
5554 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5555 | KEY STRING MAPLIST. |
b7c49376 RS |
5556 | |
5557 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5558 | |
5559 | Lisp_Object | |
b7c49376 RS |
5560 | menu_bar_items (old) |
5561 | Lisp_Object old; | |
5ec75a55 RS |
5562 | { |
5563 | /* The number of keymaps we're scanning right now, and the number of | |
5564 | keymaps we have allocated space for. */ | |
5565 | int nmaps; | |
5566 | ||
5567 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5568 | in the current keymaps, or nil where it is not a prefix. */ | |
5569 | Lisp_Object *maps; | |
5570 | ||
9f9c0e27 | 5571 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5572 | |
5573 | Lisp_Object result; | |
5574 | ||
5575 | int mapno; | |
47d319aa | 5576 | Lisp_Object oquit; |
5ec75a55 | 5577 | |
b7c49376 RS |
5578 | int i; |
5579 | ||
5580 | struct gcpro gcpro1; | |
5581 | ||
db60d856 JB |
5582 | /* In order to build the menus, we need to call the keymap |
5583 | accessors. They all call QUIT. But this function is called | |
5584 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5585 | quitting while building the menus. |
5586 | We do this instead of specbind because (1) errors will clear it anyway | |
5587 | and (2) this avoids risk of specpdl overflow. */ | |
5588 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5589 | Vinhibit_quit = Qt; |
db60d856 | 5590 | |
b7c49376 RS |
5591 | if (!NILP (old)) |
5592 | menu_bar_items_vector = old; | |
5593 | else | |
5594 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5595 | menu_bar_items_index = 0; | |
5596 | ||
5597 | GCPRO1 (menu_bar_items_vector); | |
5598 | ||
5ec75a55 RS |
5599 | /* Build our list of keymaps. |
5600 | If we recognize a function key and replace its escape sequence in | |
5601 | keybuf with its symbol, or if the sequence starts with a mouse | |
5602 | click and we need to switch buffers, we jump back here to rebuild | |
5603 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5604 | { |
5ec75a55 RS |
5605 | Lisp_Object *tmaps; |
5606 | ||
217258d5 | 5607 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5608 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5609 | { |
217258d5 KH |
5610 | /* Yes, use them (if non-nil) as well as the global map. */ |
5611 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5612 | nmaps = 0; | |
5613 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5614 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5615 | if (!NILP (Voverriding_local_map)) | |
5616 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5617 | } |
5618 | else | |
5619 | { | |
d0a49716 | 5620 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5621 | nmaps = current_minor_maps (NULL, &tmaps); |
5622 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5623 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 5624 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5625 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 5626 | #else |
217258d5 | 5627 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 5628 | #endif |
9dd3131c | 5629 | } |
217258d5 | 5630 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5631 | } |
5632 | ||
5633 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5634 | ||
5635 | result = Qnil; | |
5636 | ||
e58aa385 | 5637 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5638 | { |
5639 | if (! NILP (maps[mapno])) | |
c6a67acd | 5640 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5641 | else |
5642 | def = Qnil; | |
5643 | ||
5644 | tem = Fkeymapp (def); | |
5645 | if (!NILP (tem)) | |
b7c49376 | 5646 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5647 | } |
5648 | ||
b7c49376 RS |
5649 | /* Move to the end those items that should be at the end. */ |
5650 | ||
9f9c0e27 RS |
5651 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
5652 | { | |
b7c49376 RS |
5653 | int i; |
5654 | int end = menu_bar_items_index; | |
5655 | ||
35b3402f | 5656 | for (i = 0; i < end; i += 4) |
b7c49376 RS |
5657 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) |
5658 | { | |
35b3402f | 5659 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5660 | /* Move the item at index I to the end, |
5661 | shifting all the others forward. */ | |
5662 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5663 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5664 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5665 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5666 | if (end > i + 4) | |
5667 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5668 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5669 | (end - i - 4) * sizeof (Lisp_Object)); |
5670 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5671 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5672 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5673 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5674 | break; |
b7c49376 RS |
5675 | } |
5676 | } | |
9f9c0e27 | 5677 | |
0c9071cd | 5678 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5679 | i = menu_bar_items_index; |
35b3402f | 5680 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5681 | { |
5682 | Lisp_Object tem; | |
5683 | int newsize = 2 * i; | |
5684 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5685 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5686 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5687 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5688 | } |
b7c49376 RS |
5689 | /* Add this item. */ |
5690 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5691 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5692 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5693 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5694 | menu_bar_items_index = i; |
a73c5e29 | 5695 | |
47d319aa | 5696 | Vinhibit_quit = oquit; |
b7c49376 RS |
5697 | UNGCPRO; |
5698 | return menu_bar_items_vector; | |
5ec75a55 RS |
5699 | } |
5700 | \f | |
5701 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5702 | in menu_bar_items_vector. */ |
5ec75a55 | 5703 | |
b7c49376 RS |
5704 | static void |
5705 | menu_bar_one_keymap (keymap) | |
5706 | Lisp_Object keymap; | |
5ec75a55 | 5707 | { |
e8886a1d | 5708 | Lisp_Object tail, item, table; |
5ec75a55 RS |
5709 | |
5710 | /* Loop over all keymap entries that have menu strings. */ | |
8c18cbfb | 5711 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
5712 | { |
5713 | item = XCONS (tail)->car; | |
8c18cbfb | 5714 | if (CONSP (item)) |
e8886a1d | 5715 | menu_bar_item (XCONS (item)->car, XCONS (item)->cdr); |
8c18cbfb | 5716 | else if (VECTORP (item)) |
5ec75a55 RS |
5717 | { |
5718 | /* Loop over the char values represented in the vector. */ | |
5719 | int len = XVECTOR (item)->size; | |
5720 | int c; | |
5721 | for (c = 0; c < len; c++) | |
5722 | { | |
5723 | Lisp_Object character; | |
bb9e9bed | 5724 | XSETFASTINT (character, c); |
e8886a1d | 5725 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
5726 | } |
5727 | } | |
5728 | } | |
5ec75a55 RS |
5729 | } |
5730 | ||
f5e09c8b RS |
5731 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5732 | If there's already an item for KEY, add this DEF to it. */ | |
5733 | ||
e8886a1d RS |
5734 | Lisp_Object item_properties; |
5735 | ||
b7c49376 | 5736 | static void |
e8886a1d RS |
5737 | menu_bar_item (key, item) |
5738 | Lisp_Object key, item; | |
5ec75a55 | 5739 | { |
e8886a1d | 5740 | struct gcpro gcpro1; |
b7c49376 | 5741 | int i; |
5ec75a55 | 5742 | |
e8886a1d | 5743 | if (EQ (item, Qundefined)) |
e58aa385 | 5744 | { |
f5e09c8b | 5745 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 5746 | discard any previously made menu bar item. */ |
b7c49376 | 5747 | |
35b3402f | 5748 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5749 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5750 | { | |
35b3402f RS |
5751 | if (menu_bar_items_index > i + 4) |
5752 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 5753 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5754 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
5755 | menu_bar_items_index -= 4; | |
b7c49376 RS |
5756 | return; |
5757 | } | |
8aa034e1 RS |
5758 | |
5759 | /* If there's no definition for this key yet, | |
5760 | just ignore `undefined'. */ | |
5761 | return; | |
e58aa385 RS |
5762 | } |
5763 | ||
e8886a1d RS |
5764 | GCPRO1 (key); /* Is this necessary? */ |
5765 | i = parse_menu_item (item, 0, 1); | |
5766 | UNGCPRO; | |
5767 | if (!i) | |
b7c49376 | 5768 | return; |
5ec75a55 | 5769 | |
e8886a1d RS |
5770 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
5771 | ||
f5e09c8b | 5772 | /* Find any existing item for this KEY. */ |
35b3402f | 5773 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5774 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5775 | break; | |
5776 | ||
f5e09c8b | 5777 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
5778 | if (i == menu_bar_items_index) |
5779 | { | |
5780 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 5781 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5782 | { |
5783 | Lisp_Object tem; | |
5784 | int newsize = 2 * i; | |
5785 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5786 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5787 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5788 | menu_bar_items_vector = tem; | |
5789 | } | |
e8886a1d | 5790 | |
b7c49376 RS |
5791 | /* Add this item. */ |
5792 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
5793 | XVECTOR (menu_bar_items_vector)->contents[i++] |
5794 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
5795 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 5796 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
5797 | menu_bar_items_index = i; |
5798 | } | |
e8886a1d | 5799 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
5800 | else |
5801 | { | |
5802 | Lisp_Object old; | |
5803 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 5804 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 5805 | } |
5ec75a55 RS |
5806 | } |
5807 | \f | |
e8886a1d RS |
5808 | /* This is used as the handler when calling menu_item_eval_property. */ |
5809 | static Lisp_Object | |
5810 | menu_item_eval_property_1 (arg) | |
5811 | Lisp_Object arg; | |
5812 | { | |
5813 | /* If we got a quit from within the menu computation, | |
5814 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
5815 | if (CONSP (arg) && EQ (XCONS (arg)->car, Qquit)) | |
5816 | Fsignal (Qquit, Qnil); | |
5817 | ||
5818 | return Qnil; | |
5819 | } | |
5820 | ||
5821 | /* Evaluate an expression and return the result (or nil if something | |
5822 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
5823 | static Lisp_Object | |
5824 | menu_item_eval_property (sexpr) | |
5825 | Lisp_Object sexpr; | |
5826 | { | |
44e553a3 | 5827 | int count = specpdl_ptr - specpdl; |
e8886a1d | 5828 | Lisp_Object val; |
44e553a3 | 5829 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
5830 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
5831 | menu_item_eval_property_1); | |
44e553a3 | 5832 | return unbind_to (count, val); |
e8886a1d RS |
5833 | } |
5834 | ||
5835 | /* This function parses a menu item and leaves the result in the | |
5836 | vector item_properties. | |
5837 | ITEM is a key binding, a possible menu item. | |
5838 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
5839 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 5840 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 5841 | top level. |
fd3613d7 | 5842 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
5843 | parse_menu_item returns true if the item is a menu item and false |
5844 | otherwise. */ | |
5845 | ||
5846 | int | |
5847 | parse_menu_item (item, notreal, inmenubar) | |
5848 | Lisp_Object item; | |
5849 | int notreal, inmenubar; | |
5850 | { | |
adc1d5c8 | 5851 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
5852 | Lisp_Object cachelist; |
5853 | Lisp_Object filter; | |
5854 | Lisp_Object keyhint; | |
e8886a1d | 5855 | int i; |
74c1de23 RS |
5856 | int newcache = 0; |
5857 | ||
07ba902e RS |
5858 | cachelist = Qnil; |
5859 | filter = Qnil; | |
5860 | keyhint = Qnil; | |
5861 | ||
e8886a1d RS |
5862 | if (!CONSP (item)) |
5863 | return 0; | |
5864 | ||
e8886a1d RS |
5865 | /* Create item_properties vector if necessary. */ |
5866 | if (NILP (item_properties)) | |
5867 | item_properties | |
5868 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
5869 | ||
5870 | /* Initialize optional entries. */ | |
5871 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
5872 | XVECTOR (item_properties)->contents[i] = Qnil; | |
5873 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = Qt; | |
5874 | ||
5875 | /* Save the item here to protect it from GC. */ | |
5876 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ITEM] = item; | |
5877 | ||
5878 | item_string = XCONS (item)->car; | |
5879 | ||
5880 | start = item; | |
5881 | item = XCONS (item)->cdr; | |
5882 | if (STRINGP (item_string)) | |
5883 | { | |
5884 | /* Old format menu item. */ | |
5885 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; | |
5886 | ||
5887 | /* Maybe help string. */ | |
5888 | if (CONSP (item) && STRINGP (XCONS (item)->car)) | |
5889 | { | |
5890 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
5891 | = XCONS (item)->car; | |
5892 | start = item; | |
5893 | item = XCONS (item)->cdr; | |
5894 | } | |
5895 | ||
5896 | /* Maybee key binding cache. */ | |
5897 | if (CONSP (item) && CONSP (XCONS (item)->car) | |
5898 | && (NILP (XCONS (XCONS (item)->car)->car) | |
5899 | || VECTORP (XCONS (XCONS (item)->car)->car))) | |
5900 | { | |
5901 | cachelist = XCONS (item)->car; | |
5902 | item = XCONS (item)->cdr; | |
5903 | } | |
5904 | ||
5905 | /* This is the real definition--the function to run. */ | |
5906 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = item; | |
5907 | ||
5908 | /* Get enable property, if any. */ | |
5909 | if (SYMBOLP (item)) | |
5910 | { | |
5911 | tem = Fget (item, Qmenu_enable); | |
5912 | if (!NILP (tem)) | |
5913 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; | |
5914 | } | |
5915 | } | |
5916 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
5917 | { | |
5918 | /* New format menu item. */ | |
5919 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] | |
5920 | = XCONS (item)->car; | |
5921 | start = XCONS (item)->cdr; | |
5922 | if (CONSP (start)) | |
5923 | { | |
5924 | /* We have a real binding. */ | |
5925 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] | |
5926 | = XCONS (start)->car; | |
5927 | ||
5928 | item = XCONS (start)->cdr; | |
5929 | /* Is there a cache list with key equivalences. */ | |
5930 | if (CONSP (item) && CONSP (XCONS (item)->car)) | |
5931 | { | |
5932 | cachelist = XCONS (item)->car; | |
5933 | item = XCONS (item)->cdr; | |
5934 | } | |
5935 | ||
5936 | /* Parse properties. */ | |
5937 | while (CONSP (item) && CONSP (XCONS (item)->cdr)) | |
5938 | { | |
5939 | tem = XCONS (item)->car; | |
5940 | item = XCONS (item)->cdr; | |
5941 | ||
5942 | if (EQ (tem, QCenable)) | |
5943 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] | |
5944 | = XCONS (item)->car; | |
5945 | else if (EQ (tem, QCvisible) && !notreal) | |
5946 | { | |
5947 | /* If got a visible property and that evaluates to nil | |
5948 | then ignore this item. */ | |
5949 | tem = menu_item_eval_property (XCONS (item)->car); | |
5950 | if (NILP (tem)) | |
adc1d5c8 | 5951 | return 0; |
e8886a1d RS |
5952 | } |
5953 | else if (EQ (tem, QChelp)) | |
5954 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
5955 | = XCONS (item)->car; | |
5956 | else if (EQ (tem, QCfilter)) | |
74c1de23 RS |
5957 | filter = item; |
5958 | else if (EQ (tem, QCkey_sequence)) | |
5959 | { | |
5960 | tem = XCONS (item)->car; | |
5961 | if (NILP (cachelist) | |
5962 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
5963 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
5964 | keyhint = item; | |
5965 | } | |
5966 | else if (EQ (tem, QCkeys)) | |
5967 | { | |
5968 | tem = XCONS (item)->car; | |
5969 | if (CONSP (tem) || STRINGP (tem) && NILP (cachelist)) | |
5970 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] | |
5971 | = tem; | |
5972 | } | |
e8886a1d RS |
5973 | else if (EQ (tem, QCbutton) && CONSP (XCONS (item)->car)) |
5974 | { | |
74c1de23 | 5975 | Lisp_Object type; |
e8886a1d RS |
5976 | tem = XCONS (item)->car; |
5977 | type = XCONS (tem)->car; | |
5978 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
5979 | { | |
5980 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
5981 | = XCONS (tem)->cdr; | |
5982 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE] | |
5983 | = type; | |
5984 | } | |
5985 | } | |
5986 | item = XCONS (item)->cdr; | |
5987 | } | |
5988 | } | |
5989 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 5990 | return 0; |
e8886a1d RS |
5991 | } |
5992 | else | |
adc1d5c8 | 5993 | return 0; /* not a menu item */ |
e8886a1d RS |
5994 | |
5995 | /* If item string is not a string, evaluate it to get string. | |
5996 | If we don't get a string, skip this item. */ | |
5997 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
5998 | if (!(STRINGP (item_string) || notreal)) | |
5999 | { | |
6000 | item_string = menu_item_eval_property (item_string); | |
6001 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6002 | return 0; |
e8886a1d RS |
6003 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; |
6004 | } | |
6005 | ||
6006 | /* If got a filter apply it on definition. */ | |
6007 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; | |
6008 | if (!NILP (filter)) | |
6009 | { | |
c5c5a6f8 RS |
6010 | def = menu_item_eval_property (list2 (XCONS (filter)->car, |
6011 | list2 (Qquote, def))); | |
6012 | ||
e8886a1d RS |
6013 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = def; |
6014 | } | |
6015 | ||
6016 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6017 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6018 | if (NILP (def)) |
adc1d5c8 | 6019 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6020 | |
6021 | /* Enable or disable selection of item. */ | |
6022 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; | |
6023 | if (!EQ (tem, Qt)) | |
6024 | { | |
6025 | if (notreal) | |
6026 | tem = Qt; | |
6027 | else | |
6028 | tem = menu_item_eval_property (tem); | |
6029 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6030 | return 0; /* Ignore disabled items in menu bar. */ |
e8886a1d RS |
6031 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; |
6032 | } | |
6033 | ||
6034 | /* See if this is a separate pane or a submenu. */ | |
74c1de23 | 6035 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
e8886a1d | 6036 | tem = get_keymap_1 (def, 0, 1); |
9ac425d1 | 6037 | /* For a subkeymap, just record its details and exit. */ |
e8886a1d RS |
6038 | if (!NILP (tem)) |
6039 | { | |
6040 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP] = tem; | |
6041 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = tem; | |
e8886a1d RS |
6042 | return 1; |
6043 | } | |
9ac425d1 RS |
6044 | /* At the top level in the menu bar, do likewise for commands also. |
6045 | The menu bar does not display equivalent key bindings anyway. | |
6046 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6047 | if (inmenubar > 0) | |
6048 | return 1; | |
e8886a1d RS |
6049 | |
6050 | /* This is a command. See if there is an equivalent key binding. */ | |
6051 | if (NILP (cachelist)) | |
6052 | { | |
74c1de23 | 6053 | /* We have to create a cachelist. */ |
e8886a1d RS |
6054 | CHECK_IMPURE (start); |
6055 | XCONS (start)->cdr = Fcons (Fcons (Qnil, Qnil), XCONS (start)->cdr); | |
6056 | cachelist = XCONS (XCONS (start)->cdr)->car; | |
74c1de23 RS |
6057 | newcache = 1; |
6058 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6059 | if (!NILP (keyhint)) | |
6060 | { | |
6061 | XCONS (cachelist)->car = XCONS (keyhint)->car; | |
6062 | newcache = 0; | |
6063 | } | |
6064 | else if (STRINGP (tem)) | |
6065 | { | |
6066 | XCONS (cachelist)->cdr = Fsubstitute_command_keys (tem); | |
6067 | XCONS (cachelist)->car = Qt; | |
6068 | } | |
6069 | } | |
6070 | tem = XCONS (cachelist)->car; | |
6071 | if (!EQ (tem, Qt)) | |
6072 | { | |
6073 | int chkcache = 0; | |
6074 | Lisp_Object prefix; | |
6075 | ||
6076 | if (!NILP (tem)) | |
6077 | tem = Fkey_binding (tem, Qnil); | |
6078 | ||
6079 | prefix = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6080 | if (CONSP (prefix)) | |
6081 | { | |
6082 | def = XCONS (prefix)->car; | |
6083 | prefix = XCONS (prefix)->cdr; | |
6084 | } | |
e8886a1d | 6085 | else |
74c1de23 RS |
6086 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6087 | ||
6088 | if (NILP (XCONS (cachelist)->car)) /* Have no saved key. */ | |
6089 | { | |
6090 | if (newcache /* Always check first time. */ | |
6091 | /* Should we check everything when precomputing key | |
6092 | bindings? */ | |
6093 | /* || notreal */ | |
6094 | /* If something had no key binding before, don't recheck it | |
6095 | because that is too slow--except if we have a list of | |
6096 | rebound commands in Vdefine_key_rebound_commands, do | |
6097 | recheck any command that appears in that list. */ | |
6098 | || (CONSP (Vdefine_key_rebound_commands) | |
6099 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6100 | chkcache = 1; | |
6101 | } | |
6102 | /* We had a saved key. Is it still bound to the command? */ | |
6103 | else if (NILP (tem) | |
6104 | || !EQ (tem, def) | |
6105 | /* If the command is an alias for another | |
6106 | (such as lmenu.el set it up), check if the | |
6107 | original command matches the cached command. */ | |
6108 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function))) | |
6109 | chkcache = 1; /* Need to recompute key binding. */ | |
6110 | ||
6111 | if (chkcache) | |
6112 | { | |
6113 | /* Recompute equivalent key binding. If the command is an alias | |
6114 | for another (such as lmenu.el set it up), see if the original | |
6115 | command name has equivalent keys. Otherwise look up the | |
6116 | specified command itself. We don't try both, because that | |
6117 | makes lmenu menus slow. */ | |
6118 | if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function) | |
6119 | && ! NILP (Fget (def, Qmenu_alias))) | |
6120 | def = XSYMBOL (def)->function; | |
6121 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
6122 | XCONS (cachelist)->car = tem; | |
6123 | if (NILP (tem)) | |
6124 | { | |
6125 | XCONS (cachelist)->cdr = Qnil; | |
6126 | chkcache = 0; | |
6127 | } | |
6128 | } | |
6129 | else if (!NILP (keyhint) && !NILP (XCONS (cachelist)->car)) | |
6130 | { | |
6131 | tem = XCONS (cachelist)->car; | |
6132 | chkcache = 1; | |
6133 | } | |
6134 | ||
6135 | newcache = chkcache; | |
6136 | if (chkcache) | |
6137 | { | |
6138 | tem = Fkey_description (tem); | |
6139 | if (CONSP (prefix)) | |
6140 | { | |
6141 | if (STRINGP (XCONS (prefix)->car)) | |
6142 | tem = concat2 (XCONS (prefix)->car, tem); | |
6143 | if (STRINGP (XCONS (prefix)->cdr)) | |
6144 | tem = concat2 (tem, XCONS (prefix)->cdr); | |
6145 | } | |
6146 | XCONS (cachelist)->cdr = tem; | |
6147 | } | |
6148 | } | |
6149 | ||
6150 | tem = XCONS (cachelist)->cdr; | |
6151 | if (newcache && !NILP (tem)) | |
e8886a1d | 6152 | { |
74c1de23 RS |
6153 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
6154 | XCONS (cachelist)->cdr = tem; | |
e8886a1d RS |
6155 | } |
6156 | ||
6157 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6158 | if (notreal) | |
adc1d5c8 | 6159 | return 1; |
e8886a1d RS |
6160 | |
6161 | /* If we have an equivalent key binding, use that. */ | |
adc1d5c8 RS |
6162 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] = tem; |
6163 | ||
6164 | /* Include this when menu help is implemented. | |
6165 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6166 | if (!(NILP (tem) || STRINGP (tem))) | |
6167 | { | |
6168 | tem = menu_item_eval_property (tem); | |
6169 | if (!STRINGP (tem)) | |
6170 | tem = Qnil; | |
6171 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6172 | } | |
e8886a1d RS |
6173 | */ |
6174 | ||
6175 | /* Handle radio buttons or toggle boxes. */ | |
6176 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6177 | if (!NILP (tem)) | |
6178 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6179 | = menu_item_eval_property (tem); | |
6180 | ||
e8886a1d RS |
6181 | return 1; |
6182 | } | |
6183 | \f | |
dcc408a0 RS |
6184 | /* Read a character using menus based on maps in the array MAPS. |
6185 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
6186 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
6187 | |
6188 | PREV_EVENT is the previous input event, or nil if we are reading | |
6189 | the first event of a key sequence. | |
6190 | ||
83d68044 | 6191 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 6192 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 6193 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
6194 | |
6195 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 6196 | and the strings associated with various map elements. |
8150596a RS |
6197 | |
6198 | This can be done with X menus or with menus put in the minibuf. | |
6199 | These are done in different ways, depending on how the input will be read. | |
6200 | Menus using X are done after auto-saving in read-char, getting the input | |
6201 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
6202 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 6203 | |
7617111f | 6204 | static Lisp_Object |
8150596a | 6205 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
6206 | int nmaps; |
6207 | Lisp_Object *maps; | |
6208 | Lisp_Object prev_event; | |
6209 | int *used_mouse_menu; | |
284f4730 | 6210 | { |
7d6de002 RS |
6211 | int mapno; |
6212 | register Lisp_Object name; | |
7d6de002 RS |
6213 | Lisp_Object rest, vector; |
6214 | ||
6569cc8d JB |
6215 | if (used_mouse_menu) |
6216 | *used_mouse_menu = 0; | |
284f4730 JB |
6217 | |
6218 | /* Use local over global Menu maps */ | |
6219 | ||
7d6de002 RS |
6220 | if (! menu_prompting) |
6221 | return Qnil; | |
6222 | ||
03361bcc RS |
6223 | /* Optionally disregard all but the global map. */ |
6224 | if (inhibit_local_menu_bar_menus) | |
6225 | { | |
6226 | maps += (nmaps - 1); | |
6227 | nmaps = 1; | |
6228 | } | |
6229 | ||
7d6de002 RS |
6230 | /* Get the menu name from the first map that has one (a prompt string). */ |
6231 | for (mapno = 0; mapno < nmaps; mapno++) | |
6232 | { | |
6233 | name = map_prompt (maps[mapno]); | |
6234 | if (!NILP (name)) | |
6235 | break; | |
6236 | } | |
284f4730 | 6237 | |
7d6de002 | 6238 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 6239 | if (mapno >= nmaps) |
7d6de002 RS |
6240 | return Qnil; |
6241 | ||
1f5b1641 | 6242 | #ifdef HAVE_MENUS |
7d6de002 RS |
6243 | /* If we got to this point via a mouse click, |
6244 | use a real menu for mouse selection. */ | |
5a8d99e0 KH |
6245 | if (EVENT_HAS_PARAMETERS (prev_event) |
6246 | && !EQ (XCONS (prev_event)->car, Qmenu_bar)) | |
7d6de002 RS |
6247 | { |
6248 | /* Display the menu and get the selection. */ | |
6249 | Lisp_Object *realmaps | |
6250 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
6251 | Lisp_Object value; | |
6252 | int nmaps1 = 0; | |
6253 | ||
6254 | /* Use the maps that are not nil. */ | |
6255 | for (mapno = 0; mapno < nmaps; mapno++) | |
6256 | if (!NILP (maps[mapno])) | |
6257 | realmaps[nmaps1++] = maps[mapno]; | |
6258 | ||
6259 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
6260 | if (CONSP (value)) |
6261 | { | |
68f297c5 RS |
6262 | Lisp_Object tem; |
6263 | ||
8eb4d8ef RS |
6264 | record_menu_key (XCONS (value)->car); |
6265 | ||
68f297c5 RS |
6266 | /* If we got multiple events, unread all but |
6267 | the first. | |
6268 | There is no way to prevent those unread events | |
6269 | from showing up later in last_nonmenu_event. | |
6270 | So turn symbol and integer events into lists, | |
6271 | to indicate that they came from a mouse menu, | |
6272 | so that when present in last_nonmenu_event | |
6273 | they won't confuse things. */ | |
6274 | for (tem = XCONS (value)->cdr; !NILP (tem); | |
6275 | tem = XCONS (tem)->cdr) | |
8eb4d8ef RS |
6276 | { |
6277 | record_menu_key (XCONS (tem)->car); | |
6278 | if (SYMBOLP (XCONS (tem)->car) | |
6279 | || INTEGERP (XCONS (tem)->car)) | |
6280 | XCONS (tem)->car | |
6281 | = Fcons (XCONS (tem)->car, Qnil); | |
6282 | } | |
68f297c5 | 6283 | |
663258f2 JB |
6284 | /* If we got more than one event, put all but the first |
6285 | onto this list to be read later. | |
6286 | Return just the first event now. */ | |
24597608 RS |
6287 | Vunread_command_events |
6288 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
6289 | value = XCONS (value)->car; |
6290 | } | |
1c90c381 | 6291 | else if (NILP (value)) |
dcc408a0 | 6292 | value = Qt; |
6569cc8d JB |
6293 | if (used_mouse_menu) |
6294 | *used_mouse_menu = 1; | |
7d6de002 RS |
6295 | return value; |
6296 | } | |
1f5b1641 | 6297 | #endif /* HAVE_MENUS */ |
8150596a RS |
6298 | return Qnil ; |
6299 | } | |
6300 | ||
68e0de82 RS |
6301 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
6302 | We make this bigger when necessary, and never free it. */ | |
6303 | static char *read_char_minibuf_menu_text; | |
6304 | /* Size of that buffer. */ | |
6305 | static int read_char_minibuf_menu_width; | |
6306 | ||
8150596a | 6307 | static Lisp_Object |
24597608 | 6308 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
6309 | int commandflag ; |
6310 | int nmaps; | |
6311 | Lisp_Object *maps; | |
6312 | { | |
6313 | int mapno; | |
6314 | register Lisp_Object name; | |
6315 | int nlength; | |
6316 | int width = FRAME_WIDTH (selected_frame) - 4; | |
8150596a | 6317 | int idx = -1; |
9fdbfdf8 | 6318 | int nobindings = 1; |
8150596a | 6319 | Lisp_Object rest, vector; |
68e0de82 | 6320 | char *menu; |
8150596a RS |
6321 | |
6322 | if (! menu_prompting) | |
6323 | return Qnil; | |
6324 | ||
68e0de82 RS |
6325 | /* Make sure we have a big enough buffer for the menu text. */ |
6326 | if (read_char_minibuf_menu_text == 0) | |
6327 | { | |
6328 | read_char_minibuf_menu_width = width + 4; | |
6329 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
6330 | } | |
6331 | else if (width + 4 > read_char_minibuf_menu_width) | |
6332 | { | |
6333 | read_char_minibuf_menu_width = width + 4; | |
6334 | read_char_minibuf_menu_text | |
6335 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
6336 | } | |
6337 | menu = read_char_minibuf_menu_text; | |
6338 | ||
8150596a RS |
6339 | /* Get the menu name from the first map that has one (a prompt string). */ |
6340 | for (mapno = 0; mapno < nmaps; mapno++) | |
6341 | { | |
6342 | name = map_prompt (maps[mapno]); | |
6343 | if (!NILP (name)) | |
6344 | break; | |
6345 | } | |
6346 | ||
6347 | /* If we don't have any menus, just read a character normally. */ | |
6348 | if (mapno >= nmaps) | |
6349 | return Qnil; | |
284f4730 JB |
6350 | |
6351 | /* Prompt string always starts with map's prompt, and a space. */ | |
6352 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 6353 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 6354 | menu[nlength++] = ':'; |
284f4730 JB |
6355 | menu[nlength++] = ' '; |
6356 | menu[nlength] = 0; | |
6357 | ||
7d6de002 RS |
6358 | /* Start prompting at start of first map. */ |
6359 | mapno = 0; | |
6360 | rest = maps[mapno]; | |
284f4730 JB |
6361 | |
6362 | /* Present the documented bindings, a line at a time. */ | |
6363 | while (1) | |
6364 | { | |
6365 | int notfirst = 0; | |
6366 | int i = nlength; | |
6367 | Lisp_Object obj; | |
6368 | int ch; | |
8066f1a1 | 6369 | Lisp_Object orig_defn_macro; |
284f4730 | 6370 | |
284f4730 | 6371 | /* Loop over elements of map. */ |
7d6de002 | 6372 | while (i < width) |
284f4730 | 6373 | { |
fd3613d7 | 6374 | Lisp_Object elt; |
284f4730 | 6375 | |
7d6de002 RS |
6376 | /* If reached end of map, start at beginning of next map. */ |
6377 | if (NILP (rest)) | |
6378 | { | |
6379 | mapno++; | |
6380 | /* At end of last map, wrap around to first map if just starting, | |
6381 | or end this line if already have something on it. */ | |
6382 | if (mapno == nmaps) | |
284f4730 | 6383 | { |
8150596a | 6384 | mapno = 0; |
40932d1a | 6385 | if (notfirst || nobindings) break; |
284f4730 | 6386 | } |
7d6de002 | 6387 | rest = maps[mapno]; |
284f4730 | 6388 | } |
7d6de002 RS |
6389 | |
6390 | /* Look at the next element of the map. */ | |
6391 | if (idx >= 0) | |
6392 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 6393 | else |
7d6de002 RS |
6394 | elt = Fcar_safe (rest); |
6395 | ||
8c18cbfb | 6396 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 6397 | { |
7d6de002 RS |
6398 | /* If we found a dense table in the keymap, |
6399 | advanced past it, but start scanning its contents. */ | |
6400 | rest = Fcdr_safe (rest); | |
6401 | vector = elt; | |
6402 | idx = 0; | |
284f4730 | 6403 | } |
7d6de002 RS |
6404 | else |
6405 | { | |
6406 | /* An ordinary element. */ | |
fd3613d7 | 6407 | Lisp_Object event, tem; |
0a2ea221 KH |
6408 | |
6409 | if (idx < 0) | |
6410 | { | |
fd3613d7 RS |
6411 | event = Fcar_safe (elt); /* alist */ |
6412 | elt = Fcdr_safe (elt); | |
0a2ea221 | 6413 | } |
8150596a | 6414 | else |
7d6de002 | 6415 | { |
fd3613d7 | 6416 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
6417 | } |
6418 | ||
6419 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 6420 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
6421 | { |
6422 | /* 1 if the char to type matches the string. */ | |
6423 | int char_matches; | |
6424 | Lisp_Object upcased_event, downcased_event; | |
6425 | Lisp_Object desc; | |
fd3613d7 RS |
6426 | Lisp_Object s |
6427 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
6428 | |
6429 | upcased_event = Fupcase (event); | |
6430 | downcased_event = Fdowncase (event); | |
6431 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
6432 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
6433 | if (! char_matches) | |
6434 | desc = Fsingle_key_description (event); | |
6435 | ||
fd3613d7 RS |
6436 | tem |
6437 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6438 | if (!NILP (tem)) | |
6439 | /* Insert equivalent keybinding. */ | |
6440 | s = concat2 (s, tem); | |
6441 | ||
6442 | tem | |
6443 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
6444 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
6445 | { | |
6446 | /* Insert button prefix. */ | |
6447 | Lisp_Object selected | |
6448 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6449 | if (EQ (tem, QCradio)) | |
6450 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
6451 | else | |
6452 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
6453 | s = concat2 (tem, s); | |
6454 | } | |
6455 | ||
6456 | ||
0a2ea221 KH |
6457 | /* If we have room for the prompt string, add it to this line. |
6458 | If this is the first on the line, always add it. */ | |
6459 | if ((XSTRING (s)->size + i + 2 | |
6460 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
6461 | < width | |
6462 | || !notfirst) | |
6463 | { | |
6464 | int thiswidth; | |
6465 | ||
6466 | /* Punctuate between strings. */ | |
6467 | if (notfirst) | |
6468 | { | |
6469 | strcpy (menu + i, ", "); | |
6470 | i += 2; | |
6471 | } | |
6472 | notfirst = 1; | |
6473 | nobindings = 0 ; | |
284f4730 | 6474 | |
0a2ea221 KH |
6475 | /* If the char to type doesn't match the string's |
6476 | first char, explicitly show what char to type. */ | |
6477 | if (! char_matches) | |
6478 | { | |
6479 | /* Add as much of string as fits. */ | |
6480 | thiswidth = XSTRING (desc)->size; | |
6481 | if (thiswidth + i > width) | |
6482 | thiswidth = width - i; | |
6483 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
6484 | i += thiswidth; | |
6485 | strcpy (menu + i, " = "); | |
6486 | i += 3; | |
6487 | } | |
6488 | ||
6489 | /* Add as much of string as fits. */ | |
6490 | thiswidth = XSTRING (s)->size; | |
6491 | if (thiswidth + i > width) | |
6492 | thiswidth = width - i; | |
6493 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
6494 | i += thiswidth; | |
6495 | menu[i] = 0; | |
6496 | } | |
6497 | else | |
7d6de002 | 6498 | { |
0a2ea221 KH |
6499 | /* If this element does not fit, end the line now, |
6500 | and save the element for the next line. */ | |
6501 | strcpy (menu + i, "..."); | |
6502 | break; | |
7d6de002 | 6503 | } |
7d6de002 RS |
6504 | } |
6505 | ||
6506 | /* Move past this element. */ | |
8150596a | 6507 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
6508 | /* Handle reaching end of dense table. */ |
6509 | idx = -1; | |
6510 | if (idx >= 0) | |
6511 | idx++; | |
6512 | else | |
6513 | rest = Fcdr_safe (rest); | |
6514 | } | |
284f4730 JB |
6515 | } |
6516 | ||
6517 | /* Prompt with that and read response. */ | |
301738ed RS |
6518 | message2_nolog (menu, strlen (menu), |
6519 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 6520 | |
df0f2ba1 | 6521 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
6522 | is pressed. Help characters are not recorded because menu prompting |
6523 | is not used on replay. | |
6524 | */ | |
c5fdd383 KH |
6525 | orig_defn_macro = current_kboard->defining_kbd_macro; |
6526 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
6527 | do |
6528 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 6529 | while (BUFFERP (obj)); |
c5fdd383 | 6530 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 6531 | |
8c18cbfb | 6532 | if (!INTEGERP (obj)) |
284f4730 JB |
6533 | return obj; |
6534 | else | |
6535 | ch = XINT (obj); | |
6536 | ||
f4255cd1 | 6537 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 6538 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 6539 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 6540 | { |
c5fdd383 | 6541 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 6542 | store_kbd_macro_char (obj); |
8150596a RS |
6543 | return obj; |
6544 | } | |
6545 | /* Help char - go round again */ | |
284f4730 JB |
6546 | } |
6547 | } | |
284f4730 JB |
6548 | \f |
6549 | /* Reading key sequences. */ | |
6550 | ||
6551 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
6552 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
6553 | keymap, or nil otherwise. Return the index of the first keymap in | |
6554 | which KEY has any binding, or NMAPS if no map has a binding. | |
6555 | ||
6556 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
6557 | followed by the corresponding non-meta character. Keymaps in | |
6558 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
6559 | NEXT. | |
6560 | ||
88cb0656 JB |
6561 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
6562 | unmodified. | |
6563 | ||
569871d2 | 6564 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
6565 | |
6566 | static int | |
4e50f26a | 6567 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
6568 | Lisp_Object key; |
6569 | Lisp_Object *current, *defs, *next; | |
6570 | int nmaps; | |
6571 | { | |
6572 | int i, first_binding; | |
569871d2 | 6573 | int did_meta = 0; |
284f4730 JB |
6574 | |
6575 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
6576 | followed by the corresponding non-meta character. |
6577 | Put the results into DEFS, since we are going to alter that anyway. | |
6578 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 6579 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
6580 | { |
6581 | for (i = 0; i < nmaps; i++) | |
6582 | if (! NILP (current[i])) | |
6583 | { | |
569871d2 RS |
6584 | Lisp_Object def; |
6585 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 6586 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
6587 | |
6588 | /* Note that since we pass the resulting bindings through | |
6589 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
6590 | disappear. */ | |
569871d2 | 6591 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
6592 | } |
6593 | else | |
569871d2 | 6594 | defs[i] = Qnil; |
284f4730 | 6595 | |
569871d2 | 6596 | did_meta = 1; |
18cd2eeb | 6597 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
6598 | } |
6599 | ||
6600 | first_binding = nmaps; | |
6601 | for (i = nmaps - 1; i >= 0; i--) | |
6602 | { | |
6603 | if (! NILP (current[i])) | |
6604 | { | |
569871d2 RS |
6605 | Lisp_Object map; |
6606 | if (did_meta) | |
6607 | map = defs[i]; | |
6608 | else | |
6609 | map = current[i]; | |
6610 | ||
c6a67acd | 6611 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
6612 | if (! NILP (defs[i])) |
6613 | first_binding = i; | |
6614 | } | |
6615 | else | |
6616 | defs[i] = Qnil; | |
6617 | } | |
6618 | ||
284f4730 | 6619 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
6620 | if (first_binding < nmaps) |
6621 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 6622 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
6623 | |
6624 | return first_binding; | |
6625 | } | |
6626 | ||
df0f2ba1 | 6627 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
6628 | storing it in KEYBUF, a buffer of size BUFSIZE. |
6629 | Prompt with PROMPT. | |
284f4730 | 6630 | Return the length of the key sequence stored. |
dcc408a0 | 6631 | Return -1 if the user rejected a command menu. |
284f4730 | 6632 | |
f4255cd1 JB |
6633 | Echo starting immediately unless `prompt' is 0. |
6634 | ||
6635 | Where a key sequence ends depends on the currently active keymaps. | |
6636 | These include any minor mode keymaps active in the current buffer, | |
6637 | the current buffer's local map, and the global map. | |
6638 | ||
6639 | If a key sequence has no other bindings, we check Vfunction_key_map | |
6640 | to see if some trailing subsequence might be the beginning of a | |
6641 | function key's sequence. If so, we try to read the whole function | |
6642 | key, and substitute its symbolic name into the key sequence. | |
6643 | ||
fbcd35bd JB |
6644 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
6645 | `double-' events into similar click events, if that would make them | |
6646 | bound. We try to turn `triple-' events first into `double-' events, | |
6647 | then into clicks. | |
f4255cd1 JB |
6648 | |
6649 | If we get a mouse click in a mode line, vertical divider, or other | |
6650 | non-text area, we treat the click as if it were prefixed by the | |
6651 | symbol denoting that area - `mode-line', `vertical-line', or | |
6652 | whatever. | |
6653 | ||
6654 | If the sequence starts with a mouse click, we read the key sequence | |
6655 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 6656 | |
f4255cd1 JB |
6657 | If the user switches frames in the midst of a key sequence, we put |
6658 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
6659 | read_char will return it. |
6660 | ||
6661 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
6662 | from the selected window's buffer. */ | |
48e416d4 | 6663 | |
284f4730 | 6664 | static int |
ce98e608 | 6665 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 6666 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
6667 | Lisp_Object *keybuf; |
6668 | int bufsize; | |
84d91fda | 6669 | Lisp_Object prompt; |
309b0fc8 | 6670 | int dont_downcase_last; |
ce98e608 | 6671 | int can_return_switch_frame; |
f571ae0d | 6672 | int fix_current_buffer; |
284f4730 | 6673 | { |
f4255cd1 JB |
6674 | int count = specpdl_ptr - specpdl; |
6675 | ||
284f4730 JB |
6676 | /* How many keys there are in the current key sequence. */ |
6677 | int t; | |
6678 | ||
284f4730 JB |
6679 | /* The length of the echo buffer when we started reading, and |
6680 | the length of this_command_keys when we started reading. */ | |
6681 | int echo_start; | |
f4255cd1 | 6682 | int keys_start; |
284f4730 JB |
6683 | |
6684 | /* The number of keymaps we're scanning right now, and the number of | |
6685 | keymaps we have allocated space for. */ | |
6686 | int nmaps; | |
6687 | int nmaps_allocated = 0; | |
6688 | ||
284f4730 JB |
6689 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
6690 | the current keymaps. */ | |
6691 | Lisp_Object *defs; | |
6692 | ||
f4255cd1 JB |
6693 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
6694 | in the current keymaps, or nil where it is not a prefix. */ | |
6695 | Lisp_Object *submaps; | |
6696 | ||
e0dff5f6 RS |
6697 | /* The local map to start out with at start of key sequence. */ |
6698 | Lisp_Object orig_local_map; | |
6699 | ||
6700 | /* 1 if we have already considered switching to the local-map property | |
6701 | of the place where a mouse click occurred. */ | |
6702 | int localized_local_map = 0; | |
6703 | ||
f4255cd1 JB |
6704 | /* The index in defs[] of the first keymap that has a binding for |
6705 | this key sequence. In other words, the lowest i such that | |
6706 | defs[i] is non-nil. */ | |
284f4730 JB |
6707 | int first_binding; |
6708 | ||
f4255cd1 | 6709 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
6710 | input key. |
6711 | ||
6712 | We use this to recover after recognizing a function key. Once we | |
6713 | realize that a suffix of the current key sequence is actually a | |
6714 | function key's escape sequence, we replace the suffix with the | |
6715 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
6716 | contains a new and different key sequence, so the echo area, |
6717 | this_command_keys, and the submaps and defs arrays are wrong. In | |
6718 | this situation, we set mock_input to t, set t to 0, and jump to | |
6719 | restart_sequence; the loop will read keys from keybuf up until | |
6720 | mock_input, thus rebuilding the state; and then it will resume | |
6721 | reading characters from the keyboard. */ | |
284f4730 JB |
6722 | int mock_input = 0; |
6723 | ||
253598e4 | 6724 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
6725 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
6726 | and fkey_map is its binding. | |
253598e4 | 6727 | |
f4255cd1 JB |
6728 | These might be > t, indicating that all function key scanning |
6729 | should hold off until t reaches them. We do this when we've just | |
6730 | recognized a function key, to avoid searching for the function | |
6731 | key's again in Vfunction_key_map. */ | |
284f4730 | 6732 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 6733 | Lisp_Object fkey_map; |
284f4730 | 6734 | |
a612e298 RS |
6735 | /* Likewise, for key_translation_map. */ |
6736 | int keytran_start = 0, keytran_end = 0; | |
6737 | Lisp_Object keytran_map; | |
6738 | ||
cd21b839 JB |
6739 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
6740 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 6741 | Lisp_Object delayed_switch_frame; |
cd21b839 | 6742 | |
51763820 BF |
6743 | /* See the comment below... */ |
6744 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 6745 | Lisp_Object first_event; |
51763820 | 6746 | #endif |
4efda7dd | 6747 | |
309b0fc8 RS |
6748 | Lisp_Object original_uppercase; |
6749 | int original_uppercase_position = -1; | |
6750 | ||
bc536d84 | 6751 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 6752 | int dummyflag = 0; |
bc536d84 | 6753 | |
3b9189f8 RS |
6754 | struct buffer *starting_buffer; |
6755 | ||
e9bf89a0 RS |
6756 | /* Nonzero if we seem to have got the beginning of a binding |
6757 | in function_key_map. */ | |
6758 | int function_key_possible = 0; | |
00a78037 | 6759 | int key_translation_possible = 0; |
e9bf89a0 | 6760 | |
3fe8e9a2 RS |
6761 | /* Save the status of key translation before each step, |
6762 | so that we can restore this after downcasing. */ | |
6763 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
6764 | int prev_fkey_start; |
6765 | int prev_fkey_end; | |
3fe8e9a2 RS |
6766 | |
6767 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
6768 | int prev_keytran_start; |
6769 | int prev_keytran_end; | |
3fe8e9a2 | 6770 | |
4efda7dd RS |
6771 | int junk; |
6772 | ||
7d18f9ae RS |
6773 | raw_keybuf_count = 0; |
6774 | ||
4efda7dd RS |
6775 | last_nonmenu_event = Qnil; |
6776 | ||
6777 | delayed_switch_frame = Qnil; | |
6778 | fkey_map = Vfunction_key_map; | |
a612e298 | 6779 | keytran_map = Vkey_translation_map; |
f4255cd1 | 6780 | |
a612e298 | 6781 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
6782 | if (NILP (Fkeymapp (Vfunction_key_map))) |
6783 | fkey_start = fkey_end = bufsize + 1; | |
6784 | ||
a612e298 RS |
6785 | /* If there is no key-translation-map, turn off scanning. */ |
6786 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
6787 | keytran_start = keytran_end = bufsize + 1; | |
6788 | ||
284f4730 JB |
6789 | if (INTERACTIVE) |
6790 | { | |
84d91fda RS |
6791 | if (!NILP (prompt)) |
6792 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 6793 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
6794 | /* This doesn't put in a dash if the echo buffer is empty, so |
6795 | you don't always see a dash hanging out in the minibuffer. */ | |
6796 | echo_dash (); | |
284f4730 JB |
6797 | } |
6798 | ||
f4255cd1 JB |
6799 | /* Record the initial state of the echo area and this_command_keys; |
6800 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 6801 | if (INTERACTIVE) |
df0f2ba1 | 6802 | echo_start = echo_length (); |
f4255cd1 | 6803 | keys_start = this_command_key_count; |
6321824f | 6804 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 6805 | |
51763820 BF |
6806 | #if defined (GOBBLE_FIRST_EVENT) |
6807 | /* This doesn't quite work, because some of the things that read_char | |
6808 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 6809 | this work right. */ |
51763820 | 6810 | |
4efda7dd RS |
6811 | /* Read the first char of the sequence specially, before setting |
6812 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 6813 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 6814 | &junk); |
51763820 | 6815 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 6816 | |
e0dff5f6 RS |
6817 | orig_local_map = get_local_map (PT, current_buffer); |
6818 | ||
7b4aedb9 JB |
6819 | /* We jump here when the key sequence has been thoroughly changed, and |
6820 | we need to rescan it starting from the beginning. When we jump here, | |
6821 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 6822 | replay_sequence: |
7b4aedb9 | 6823 | |
3b9189f8 | 6824 | starting_buffer = current_buffer; |
e9bf89a0 | 6825 | function_key_possible = 0; |
00a78037 | 6826 | key_translation_possible = 0; |
3b9189f8 | 6827 | |
f4255cd1 | 6828 | /* Build our list of keymaps. |
07d2b8de JB |
6829 | If we recognize a function key and replace its escape sequence in |
6830 | keybuf with its symbol, or if the sequence starts with a mouse | |
6831 | click and we need to switch buffers, we jump back here to rebuild | |
6832 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6833 | { |
284f4730 JB |
6834 | Lisp_Object *maps; |
6835 | ||
217258d5 KH |
6836 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
6837 | || !NILP (Voverriding_local_map)) | |
284f4730 | 6838 | { |
217258d5 | 6839 | if (3 > nmaps_allocated) |
9dd3131c | 6840 | { |
217258d5 KH |
6841 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
6842 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
6843 | nmaps_allocated = 3; | |
9dd3131c | 6844 | } |
217258d5 KH |
6845 | nmaps = 0; |
6846 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6847 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6848 | if (!NILP (Voverriding_local_map)) | |
6849 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 6850 | } |
9dd3131c RS |
6851 | else |
6852 | { | |
217258d5 KH |
6853 | nmaps = current_minor_maps (0, &maps); |
6854 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 6855 | { |
217258d5 KH |
6856 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
6857 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
6858 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 6859 | } |
217258d5 | 6860 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 6861 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 6862 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 6863 | #else |
217258d5 | 6864 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 6865 | #endif |
9dd3131c | 6866 | } |
217258d5 | 6867 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
6868 | } |
6869 | ||
6870 | /* Find an accurate initial value for first_binding. */ | |
6871 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 6872 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
6873 | break; |
6874 | ||
3b9189f8 | 6875 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
6876 | t = 0; |
6877 | ||
6878 | /* These are no-ops the first time through, but if we restart, they | |
6879 | revert the echo area and this_command_keys to their original state. */ | |
6880 | this_command_key_count = keys_start; | |
df0f2ba1 | 6881 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
6882 | echo_truncate (echo_start); |
6883 | ||
cca310da JB |
6884 | /* If the best binding for the current key sequence is a keymap, or |
6885 | we may be looking at a function key's escape sequence, keep on | |
6886 | reading. */ | |
253598e4 | 6887 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
6888 | || (first_binding >= nmaps |
6889 | && fkey_start < t | |
6890 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 6891 | && mock_input <= fkey_start) |
0d882d52 KH |
6892 | || (first_binding >= nmaps |
6893 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
6894 | /* Don't return in the middle of a possible function key sequence, |
6895 | if the only bindings we found were via case conversion. | |
6896 | Thus, if ESC O a has a function-key-map translation | |
6897 | and ESC o has a binding, don't return after ESC O, | |
6898 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 6899 | ) |
284f4730 JB |
6900 | { |
6901 | Lisp_Object key; | |
7d6de002 | 6902 | int used_mouse_menu = 0; |
284f4730 | 6903 | |
7b4aedb9 JB |
6904 | /* Where the last real key started. If we need to throw away a |
6905 | key that has expanded into more than one element of keybuf | |
6906 | (say, a mouse click on the mode line which is being treated | |
6907 | as [mode-line (mouse-...)], then we backtrack to this point | |
6908 | of keybuf. */ | |
6909 | int last_real_key_start; | |
6910 | ||
0a7f1fc0 JB |
6911 | /* These variables are analogous to echo_start and keys_start; |
6912 | while those allow us to restart the entire key sequence, | |
6913 | echo_local_start and keys_local_start allow us to throw away | |
6914 | just one key. */ | |
f4255cd1 JB |
6915 | int echo_local_start, keys_local_start, local_first_binding; |
6916 | ||
284f4730 | 6917 | if (t >= bufsize) |
3fe8e9a2 | 6918 | error ("Key sequence too long"); |
284f4730 | 6919 | |
f4255cd1 JB |
6920 | if (INTERACTIVE) |
6921 | echo_local_start = echo_length (); | |
6922 | keys_local_start = this_command_key_count; | |
6923 | local_first_binding = first_binding; | |
df0f2ba1 | 6924 | |
f4255cd1 | 6925 | replay_key: |
0a7f1fc0 | 6926 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
6927 | jumped back up to replay_key; in that case, these restore the |
6928 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 6929 | loop. */ |
40932d1a | 6930 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 6931 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
6932 | this_command_key_count = keys_local_start; |
6933 | first_binding = local_first_binding; | |
6934 | ||
7e85b935 RS |
6935 | /* By default, assume each event is "real". */ |
6936 | last_real_key_start = t; | |
6937 | ||
f4255cd1 | 6938 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
6939 | if (t < mock_input) |
6940 | { | |
6941 | key = keybuf[t]; | |
6942 | add_command_key (key); | |
a98ea3f9 RS |
6943 | if (echo_keystrokes) |
6944 | echo_char (key); | |
284f4730 | 6945 | } |
253598e4 JB |
6946 | |
6947 | /* If not, we should actually read a character. */ | |
284f4730 JB |
6948 | else |
6949 | { | |
a6d53864 RS |
6950 | struct buffer *buf = current_buffer; |
6951 | ||
beecf6a1 | 6952 | { |
c5fdd383 KH |
6953 | #ifdef MULTI_KBOARD |
6954 | KBOARD *interrupted_kboard = current_kboard; | |
df0f2ba1 | 6955 | struct frame *interrupted_frame = selected_frame; |
c5fdd383 | 6956 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 6957 | { |
5798cf15 KH |
6958 | if (!NILP (delayed_switch_frame)) |
6959 | { | |
c5fdd383 | 6960 | interrupted_kboard->kbd_queue |
5798cf15 | 6961 | = Fcons (delayed_switch_frame, |
c5fdd383 | 6962 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
6963 | delayed_switch_frame = Qnil; |
6964 | } | |
beecf6a1 | 6965 | while (t > 0) |
c5fdd383 KH |
6966 | interrupted_kboard->kbd_queue |
6967 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
6968 | |
6969 | /* If the side queue is non-empty, ensure it begins with a | |
6970 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
6971 | if (CONSP (interrupted_kboard->kbd_queue) |
6972 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
6973 | !(EVENT_HAS_PARAMETERS (key) |
6974 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
6975 | Qswitch_frame)))) | |
df0f2ba1 KH |
6976 | { |
6977 | Lisp_Object frame; | |
6978 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 6979 | interrupted_kboard->kbd_queue |
df0f2ba1 | 6980 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 6981 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 6982 | } |
beecf6a1 | 6983 | mock_input = 0; |
a6e0153c | 6984 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
6985 | goto replay_sequence; |
6986 | } | |
bded54dd | 6987 | #endif |
beecf6a1 KH |
6988 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
6989 | &used_mouse_menu); | |
6990 | } | |
284f4730 | 6991 | |
dcc408a0 RS |
6992 | /* read_char returns t when it shows a menu and the user rejects it. |
6993 | Just return -1. */ | |
6994 | if (EQ (key, Qt)) | |
7d18f9ae RS |
6995 | { |
6996 | unbind_to (count, Qnil); | |
6997 | return -1; | |
6998 | } | |
dcc408a0 | 6999 | |
f4255cd1 | 7000 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
7001 | Emacs 18 handles this by returning immediately with a |
7002 | zero, so that's what we'll do. */ | |
8c18cbfb | 7003 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 7004 | { |
f4255cd1 | 7005 | t = 0; |
bc536d84 RS |
7006 | /* The Microsoft C compiler can't handle the goto that |
7007 | would go here. */ | |
309b0fc8 | 7008 | dummyflag = 1; |
bc536d84 | 7009 | break; |
cd21b839 | 7010 | } |
df0f2ba1 | 7011 | |
3cb81011 KH |
7012 | /* If the current buffer has been changed from under us, the |
7013 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 7014 | if (BUFFERP (key)) |
3cb81011 KH |
7015 | { |
7016 | mock_input = t; | |
f571ae0d RS |
7017 | /* Reset the current buffer from the selected window |
7018 | in case something changed the former and not the latter. | |
7019 | This is to be more consistent with the behavior | |
7020 | of the command_loop_1. */ | |
7021 | if (fix_current_buffer) | |
a94a4335 KH |
7022 | { |
7023 | if (! FRAME_LIVE_P (selected_frame)) | |
7024 | Fkill_emacs (Qnil); | |
7025 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
7026 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
7027 | } | |
f571ae0d | 7028 | |
a6e0153c | 7029 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
7030 | goto replay_sequence; |
7031 | } | |
7032 | ||
3b9189f8 RS |
7033 | /* If we have a quit that was typed in another frame, and |
7034 | quit_throw_to_read_char switched buffers, | |
7035 | replay to get the right keymap. */ | |
9343ab07 | 7036 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 | 7037 | { |
7d18f9ae RS |
7038 | GROW_RAW_KEYBUF; |
7039 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
7040 | keybuf[t++] = key; |
7041 | mock_input = t; | |
7042 | Vquit_flag = Qnil; | |
a6e0153c | 7043 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
7044 | goto replay_sequence; |
7045 | } | |
3cb81011 | 7046 | |
284f4730 | 7047 | Vquit_flag = Qnil; |
7d18f9ae RS |
7048 | |
7049 | if (EVENT_HAS_PARAMETERS (key) | |
7050 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
7051 | { | |
7052 | /* If we're at the beginning of a key sequence, and the caller | |
7053 | says it's okay, go ahead and return this event. If we're | |
7054 | in the midst of a key sequence, delay it until the end. */ | |
7055 | if (t > 0 || !can_return_switch_frame) | |
7056 | { | |
7057 | delayed_switch_frame = key; | |
7058 | goto replay_key; | |
7059 | } | |
7060 | } | |
7061 | ||
7062 | GROW_RAW_KEYBUF; | |
7063 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 7064 | } |
284f4730 | 7065 | |
df0f2ba1 | 7066 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
7067 | in their CHAR-ADDRESS field. For example, a click on |
7068 | the mode line is prefixed by the symbol `mode-line'. | |
7069 | ||
7070 | Furthermore, key sequences beginning with mouse clicks | |
7071 | are read using the keymaps of the buffer clicked on, not | |
7072 | the current buffer. So we may have to switch the buffer | |
7073 | here. | |
7074 | ||
7075 | When we turn one event into two events, we must make sure | |
7076 | that neither of the two looks like the original--so that, | |
7077 | if we replay the events, they won't be expanded again. | |
7078 | If not for this, such reexpansion could happen either here | |
7079 | or when user programs play with this-command-keys. */ | |
7080 | if (EVENT_HAS_PARAMETERS (key)) | |
7081 | { | |
9b8eb840 | 7082 | Lisp_Object kind; |
cca310da | 7083 | |
9b8eb840 | 7084 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 7085 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 7086 | { |
9b8eb840 | 7087 | Lisp_Object window, posn; |
f4255cd1 | 7088 | |
9b8eb840 KH |
7089 | window = POSN_WINDOW (EVENT_START (key)); |
7090 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
8c18cbfb | 7091 | if (CONSP (posn)) |
0a7f1fc0 | 7092 | { |
7e85b935 RS |
7093 | /* We're looking at the second event of a |
7094 | sequence which we expanded before. Set | |
7095 | last_real_key_start appropriately. */ | |
7096 | if (t > 0) | |
7097 | last_real_key_start = t - 1; | |
cd21b839 | 7098 | } |
7e85b935 RS |
7099 | |
7100 | /* Key sequences beginning with mouse clicks are | |
7101 | read using the keymaps in the buffer clicked on, | |
7102 | not the current buffer. If we're at the | |
7103 | beginning of a key sequence, switch buffers. */ | |
7104 | if (last_real_key_start == 0 | |
8c18cbfb KH |
7105 | && WINDOWP (window) |
7106 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 7107 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 7108 | { |
7d18f9ae | 7109 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
7110 | keybuf[t] = key; |
7111 | mock_input = t + 1; | |
7112 | ||
7113 | /* Arrange to go back to the original buffer once we're | |
7114 | done reading the key sequence. Note that we can't | |
7115 | use save_excursion_{save,restore} here, because they | |
7116 | save point as well as the current buffer; we don't | |
7117 | want to save point, because redisplay may change it, | |
7118 | to accommodate a Fset_window_start or something. We | |
7119 | don't want to do this at the top of the function, | |
7120 | because we may get input from a subprocess which | |
7121 | wants to change the selected window and stuff (say, | |
7122 | emacsclient). */ | |
7123 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
7124 | ||
a94a4335 KH |
7125 | if (! FRAME_LIVE_P (selected_frame)) |
7126 | Fkill_emacs (Qnil); | |
7e85b935 | 7127 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
e0dff5f6 | 7128 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 7129 | goto replay_sequence; |
0a7f1fc0 | 7130 | } |
e0dff5f6 RS |
7131 | /* For a mouse click, get the local text-property keymap |
7132 | of the place clicked on, rather than point. */ | |
7133 | if (last_real_key_start == 0 && CONSP (XCONS (key)->cdr) | |
7134 | && ! localized_local_map) | |
5ec75a55 | 7135 | { |
e0dff5f6 RS |
7136 | Lisp_Object map_here, start, pos; |
7137 | ||
7138 | localized_local_map = 1; | |
7139 | start = EVENT_START (key); | |
7140 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) | |
7141 | { | |
7142 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
7143 | if (INTEGERP (pos) |
7144 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
7145 | { |
7146 | map_here = get_local_map (XINT (pos), current_buffer); | |
7147 | if (!EQ (map_here, orig_local_map)) | |
7148 | { | |
7149 | orig_local_map = map_here; | |
7150 | keybuf[t] = key; | |
7151 | mock_input = t + 1; | |
5ec75a55 | 7152 | |
e0dff5f6 RS |
7153 | goto replay_sequence; |
7154 | } | |
7155 | } | |
7156 | } | |
7157 | } | |
7158 | ||
7159 | /* Expand mode-line and scroll-bar events into two events: | |
7160 | use posn as a fake prefix key. */ | |
7161 | if (SYMBOLP (posn)) | |
7162 | { | |
7e85b935 | 7163 | if (t + 1 >= bufsize) |
3fe8e9a2 | 7164 | error ("Key sequence too long"); |
7e85b935 RS |
7165 | keybuf[t] = posn; |
7166 | keybuf[t+1] = key; | |
7167 | mock_input = t + 2; | |
7168 | ||
7169 | /* Zap the position in key, so we know that we've | |
7170 | expanded it, and don't try to do so again. */ | |
7171 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7172 | = Fcons (posn, Qnil); | |
7173 | goto replay_key; | |
5ec75a55 | 7174 | } |
0a7f1fc0 | 7175 | } |
7a80a6f6 RS |
7176 | else if (CONSP (XCONS (key)->cdr) |
7177 | && CONSP (EVENT_START (key)) | |
7178 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 7179 | { |
9b8eb840 | 7180 | Lisp_Object posn; |
7e85b935 | 7181 | |
9b8eb840 | 7182 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
7183 | /* Handle menu-bar events: |
7184 | insert the dummy prefix event `menu-bar'. */ | |
7185 | if (EQ (posn, Qmenu_bar)) | |
7186 | { | |
7187 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 7188 | error ("Key sequence too long"); |
7e85b935 RS |
7189 | keybuf[t] = posn; |
7190 | keybuf[t+1] = key; | |
7191 | ||
7192 | /* Zap the position in key, so we know that we've | |
7193 | expanded it, and don't try to do so again. */ | |
7194 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7195 | = Fcons (posn, Qnil); | |
7196 | ||
7197 | mock_input = t + 2; | |
7198 | goto replay_sequence; | |
7199 | } | |
8c18cbfb | 7200 | else if (CONSP (posn)) |
7e85b935 RS |
7201 | { |
7202 | /* We're looking at the second event of a | |
7203 | sequence which we expanded before. Set | |
7204 | last_real_key_start appropriately. */ | |
7205 | if (last_real_key_start == t && t > 0) | |
7206 | last_real_key_start = t - 1; | |
7207 | } | |
a6d53864 | 7208 | } |
284f4730 | 7209 | } |
f4255cd1 JB |
7210 | |
7211 | /* We have finally decided that KEY is something we might want | |
7212 | to look up. */ | |
284f4730 JB |
7213 | first_binding = (follow_key (key, |
7214 | nmaps - first_binding, | |
253598e4 | 7215 | submaps + first_binding, |
284f4730 | 7216 | defs + first_binding, |
4e50f26a | 7217 | submaps + first_binding) |
284f4730 | 7218 | + first_binding); |
0a7f1fc0 | 7219 | |
f4255cd1 | 7220 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
7221 | if (first_binding >= nmaps) |
7222 | { | |
9b8eb840 | 7223 | Lisp_Object head; |
0a7f1fc0 | 7224 | |
9b8eb840 | 7225 | head = EVENT_HEAD (key); |
24736fbc | 7226 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
7227 | { |
7228 | read_key_sequence_cmd = Vprefix_help_command; | |
7229 | keybuf[t++] = key; | |
7230 | last_nonmenu_event = key; | |
bc536d84 RS |
7231 | /* The Microsoft C compiler can't handle the goto that |
7232 | would go here. */ | |
309b0fc8 | 7233 | dummyflag = 1; |
0d882d52 | 7234 | break; |
7e85b935 RS |
7235 | } |
7236 | ||
8c18cbfb | 7237 | if (SYMBOLP (head)) |
0a7f1fc0 | 7238 | { |
9b8eb840 KH |
7239 | Lisp_Object breakdown; |
7240 | int modifiers; | |
0a7f1fc0 | 7241 | |
9b8eb840 KH |
7242 | breakdown = parse_modifiers (head); |
7243 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
7244 | /* Attempt to reduce an unbound mouse event to a simpler |
7245 | event that is bound: | |
7246 | Drags reduce to clicks. | |
7247 | Double-clicks reduce to clicks. | |
7248 | Triple-clicks reduce to double-clicks, then to clicks. | |
7249 | Down-clicks are eliminated. | |
7250 | Double-downs reduce to downs, then are eliminated. | |
7251 | Triple-downs reduce to double-downs, then to downs, | |
7252 | then are eliminated. */ | |
7253 | if (modifiers & (down_modifier | drag_modifier | |
7254 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 7255 | { |
559f9d04 RS |
7256 | while (modifiers & (down_modifier | drag_modifier |
7257 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
7258 | { |
7259 | Lisp_Object new_head, new_click; | |
7260 | if (modifiers & triple_modifier) | |
7261 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
7262 | else if (modifiers & double_modifier) |
7263 | modifiers &= ~double_modifier; | |
7264 | else if (modifiers & drag_modifier) | |
7265 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
7266 | else |
7267 | { | |
7268 | /* Dispose of this `down' event by simply jumping | |
7269 | back to replay_key, to get another event. | |
7270 | ||
7271 | Note that if this event came from mock input, | |
7272 | then just jumping back to replay_key will just | |
7273 | hand it to us again. So we have to wipe out any | |
7274 | mock input. | |
7275 | ||
7276 | We could delete keybuf[t] and shift everything | |
7277 | after that to the left by one spot, but we'd also | |
7278 | have to fix up any variable that points into | |
7279 | keybuf, and shifting isn't really necessary | |
7280 | anyway. | |
7281 | ||
7282 | Adding prefixes for non-textual mouse clicks | |
7283 | creates two characters of mock input, and both | |
7284 | must be thrown away. If we're only looking at | |
7285 | the prefix now, we can just jump back to | |
7286 | replay_key. On the other hand, if we've already | |
7287 | processed the prefix, and now the actual click | |
7288 | itself is giving us trouble, then we've lost the | |
7289 | state of the keymaps we want to backtrack to, and | |
7290 | we need to replay the whole sequence to rebuild | |
7291 | it. | |
7292 | ||
7293 | Beyond that, only function key expansion could | |
7294 | create more than two keys, but that should never | |
7295 | generate mouse events, so it's okay to zero | |
7296 | mock_input in that case too. | |
7297 | ||
7298 | Isn't this just the most wonderful code ever? */ | |
7299 | if (t == last_real_key_start) | |
7300 | { | |
7301 | mock_input = 0; | |
7302 | goto replay_key; | |
7303 | } | |
7304 | else | |
7305 | { | |
7306 | mock_input = last_real_key_start; | |
7307 | goto replay_sequence; | |
7308 | } | |
7309 | } | |
7310 | ||
27203ead RS |
7311 | new_head |
7312 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
7313 | new_click | |
7314 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
7315 | |
7316 | /* Look for a binding for this new key. follow_key | |
7317 | promises that it didn't munge submaps the | |
7318 | last time we called it, since key was unbound. */ | |
27203ead RS |
7319 | first_binding |
7320 | = (follow_key (new_click, | |
7321 | nmaps - local_first_binding, | |
7322 | submaps + local_first_binding, | |
7323 | defs + local_first_binding, | |
4e50f26a | 7324 | submaps + local_first_binding) |
27203ead | 7325 | + local_first_binding); |
fbcd35bd JB |
7326 | |
7327 | /* If that click is bound, go for it. */ | |
7328 | if (first_binding < nmaps) | |
7329 | { | |
7330 | key = new_click; | |
7331 | break; | |
7332 | } | |
7333 | /* Otherwise, we'll leave key set to the drag event. */ | |
7334 | } | |
0a7f1fc0 JB |
7335 | } |
7336 | } | |
7337 | } | |
7338 | ||
284f4730 | 7339 | keybuf[t++] = key; |
7d6de002 RS |
7340 | /* Normally, last_nonmenu_event gets the previous key we read. |
7341 | But when a mouse popup menu is being used, | |
7342 | we don't update last_nonmenu_event; it continues to hold the mouse | |
7343 | event that preceded the first level of menu. */ | |
7344 | if (!used_mouse_menu) | |
7345 | last_nonmenu_event = key; | |
284f4730 | 7346 | |
6321824f RS |
7347 | /* Record what part of this_command_keys is the current key sequence. */ |
7348 | this_single_command_key_start = this_command_key_count - t; | |
7349 | ||
3fe8e9a2 RS |
7350 | prev_fkey_map = fkey_map; |
7351 | prev_fkey_start = fkey_start; | |
7352 | prev_fkey_end = fkey_end; | |
7353 | ||
7354 | prev_keytran_map = keytran_map; | |
7355 | prev_keytran_start = keytran_start; | |
7356 | prev_keytran_end = keytran_end; | |
7357 | ||
284f4730 | 7358 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
7359 | off the end of it. We only want to scan real keyboard input |
7360 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 7361 | re-reading old events, don't examine it. */ |
4e50f26a | 7362 | if (first_binding >= nmaps |
253598e4 | 7363 | && t >= mock_input) |
284f4730 JB |
7364 | { |
7365 | Lisp_Object fkey_next; | |
7366 | ||
e9bf89a0 RS |
7367 | /* Continue scan from fkey_end until we find a bound suffix. |
7368 | If we fail, increment fkey_start | |
7369 | and start fkey_end from there. */ | |
284f4730 JB |
7370 | while (fkey_end < t) |
7371 | { | |
f4255cd1 JB |
7372 | Lisp_Object key; |
7373 | ||
7374 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
7375 | /* Look up meta-characters by prefixing them |
7376 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 7377 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 7378 | { |
e74fbc70 RS |
7379 | fkey_next |
7380 | = get_keymap_1 | |
f4255cd1 | 7381 | (get_keyelt |
c6a67acd | 7382 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 7383 | 0, 1); |
bb9e9bed | 7384 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 7385 | } |
067ffa38 JB |
7386 | else |
7387 | fkey_next = fkey_map; | |
7388 | ||
e74fbc70 | 7389 | fkey_next |
c6a67acd | 7390 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 0); |
067ffa38 | 7391 | |
7a80a6f6 RS |
7392 | #if 0 /* I didn't turn this on, because it might cause trouble |
7393 | for the mapping of return into C-m and tab into C-i. */ | |
7394 | /* Optionally don't map function keys into other things. | |
7395 | This enables the user to redefine kp- keys easily. */ | |
7396 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
7397 | fkey_next = Qnil; | |
7398 | #endif | |
7399 | ||
1abe6abe RS |
7400 | /* If the function key map gives a function, not an |
7401 | array, then call the function with no args and use | |
7402 | its value instead. */ | |
7403 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
7404 | && fkey_end == t) | |
7405 | { | |
7406 | struct gcpro gcpro1, gcpro2, gcpro3; | |
7407 | Lisp_Object tem; | |
7408 | tem = fkey_next; | |
7409 | ||
7410 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 7411 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
7412 | UNGCPRO; |
7413 | /* If the function returned something invalid, | |
7414 | barf--don't ignore it. | |
df0f2ba1 | 7415 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
7416 | other variables.) */ |
7417 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 7418 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
7419 | } |
7420 | ||
e9bf89a0 RS |
7421 | function_key_possible = ! NILP (fkey_next); |
7422 | ||
85bc5181 | 7423 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 7424 | function key map and it's a suffix of the current |
85bc5181 | 7425 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 7426 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 7427 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
7428 | && fkey_end == t) |
7429 | { | |
2e864a76 | 7430 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
7431 | |
7432 | t = fkey_start + len; | |
284f4730 | 7433 | if (t >= bufsize) |
3fe8e9a2 | 7434 | error ("Key sequence too long"); |
284f4730 | 7435 | |
f5ea6163 JB |
7436 | if (VECTORP (fkey_next)) |
7437 | bcopy (XVECTOR (fkey_next)->contents, | |
7438 | keybuf + fkey_start, | |
7439 | (t - fkey_start) * sizeof (keybuf[0])); | |
7440 | else if (STRINGP (fkey_next)) | |
7441 | { | |
7442 | int i; | |
7443 | ||
7444 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
7445 | XSETFASTINT (keybuf[fkey_start + i], |
7446 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 7447 | } |
df0f2ba1 | 7448 | |
284f4730 JB |
7449 | mock_input = t; |
7450 | fkey_start = fkey_end = t; | |
32e6d806 | 7451 | fkey_map = Vfunction_key_map; |
284f4730 | 7452 | |
00a78037 RS |
7453 | /* Do pass the results through key-translation-map. */ |
7454 | keytran_start = keytran_end = 0; | |
7455 | keytran_map = Vkey_translation_map; | |
7456 | ||
f4255cd1 | 7457 | goto replay_sequence; |
284f4730 | 7458 | } |
df0f2ba1 | 7459 | |
f4255cd1 | 7460 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 7461 | |
df0f2ba1 | 7462 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 7463 | fkey_start. */ |
284f4730 JB |
7464 | if (NILP (fkey_map)) |
7465 | { | |
7466 | fkey_end = ++fkey_start; | |
7467 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 7468 | function_key_possible = 0; |
284f4730 JB |
7469 | } |
7470 | } | |
7471 | } | |
a612e298 RS |
7472 | |
7473 | /* Look for this sequence in key-translation-map. */ | |
7474 | { | |
7475 | Lisp_Object keytran_next; | |
7476 | ||
7477 | /* Scan from keytran_end until we find a bound suffix. */ | |
7478 | while (keytran_end < t) | |
7479 | { | |
7480 | Lisp_Object key; | |
7481 | ||
7482 | key = keybuf[keytran_end++]; | |
7483 | /* Look up meta-characters by prefixing them | |
7484 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 7485 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
7486 | { |
7487 | keytran_next | |
7488 | = get_keymap_1 | |
7489 | (get_keyelt | |
c6a67acd | 7490 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 7491 | 0, 1); |
bb9e9bed | 7492 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
7493 | } |
7494 | else | |
7495 | keytran_next = keytran_map; | |
7496 | ||
7497 | keytran_next | |
c6a67acd | 7498 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 0); |
a612e298 | 7499 | |
1abe6abe RS |
7500 | /* If the key translation map gives a function, not an |
7501 | array, then call the function with no args and use | |
7502 | its value instead. */ | |
7503 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
7504 | && keytran_end == t) | |
7505 | { | |
7506 | struct gcpro gcpro1, gcpro2, gcpro3; | |
7507 | Lisp_Object tem; | |
7508 | tem = keytran_next; | |
7509 | ||
40932d1a | 7510 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 7511 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
7512 | UNGCPRO; |
7513 | /* If the function returned something invalid, | |
7514 | barf--don't ignore it. | |
df0f2ba1 | 7515 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
7516 | other variables.) */ |
7517 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 7518 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
7519 | } |
7520 | ||
00a78037 RS |
7521 | key_translation_possible = ! NILP (keytran_next); |
7522 | ||
a612e298 | 7523 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 7524 | key translation map and it's a suffix of the current |
a612e298 RS |
7525 | sequence (i.e. keytran_end == t), replace it with |
7526 | the binding and restart with keytran_start at the end. */ | |
7527 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
7528 | && keytran_end == t) | |
7529 | { | |
2e864a76 | 7530 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
7531 | |
7532 | t = keytran_start + len; | |
7533 | if (t >= bufsize) | |
3fe8e9a2 | 7534 | error ("Key sequence too long"); |
a612e298 RS |
7535 | |
7536 | if (VECTORP (keytran_next)) | |
7537 | bcopy (XVECTOR (keytran_next)->contents, | |
7538 | keybuf + keytran_start, | |
7539 | (t - keytran_start) * sizeof (keybuf[0])); | |
7540 | else if (STRINGP (keytran_next)) | |
7541 | { | |
7542 | int i; | |
7543 | ||
7544 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
7545 | XSETFASTINT (keybuf[keytran_start + i], |
7546 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
7547 | } |
7548 | ||
7549 | mock_input = t; | |
7550 | keytran_start = keytran_end = t; | |
7551 | keytran_map = Vkey_translation_map; | |
7552 | ||
00a78037 RS |
7553 | /* Don't pass the results of key-translation-map |
7554 | through function-key-map. */ | |
7555 | fkey_start = fkey_end = t; | |
7556 | fkey_map = Vkey_translation_map; | |
7557 | ||
a612e298 RS |
7558 | goto replay_sequence; |
7559 | } | |
7560 | ||
7561 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
7562 | ||
df0f2ba1 | 7563 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
7564 | keytran_start. */ |
7565 | if (NILP (keytran_map)) | |
7566 | { | |
7567 | keytran_end = ++keytran_start; | |
7568 | keytran_map = Vkey_translation_map; | |
00a78037 | 7569 | key_translation_possible = 0; |
a612e298 RS |
7570 | } |
7571 | } | |
7572 | } | |
4e50f26a RS |
7573 | |
7574 | /* If KEY is not defined in any of the keymaps, | |
7575 | and cannot be part of a function key or translation, | |
7576 | and is an upper case letter | |
7577 | use the corresponding lower-case letter instead. */ | |
7578 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 7579 | && ! key_translation_possible |
8c18cbfb | 7580 | && INTEGERP (key) |
4e50f26a | 7581 | && ((((XINT (key) & 0x3ffff) |
301738ed | 7582 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
7583 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
7584 | || (XINT (key) & shift_modifier))) | |
7585 | { | |
569871d2 | 7586 | Lisp_Object new_key; |
569871d2 | 7587 | |
309b0fc8 RS |
7588 | original_uppercase = key; |
7589 | original_uppercase_position = t - 1; | |
7590 | ||
831f35a2 | 7591 | if (XINT (key) & shift_modifier) |
569871d2 | 7592 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 7593 | else |
569871d2 RS |
7594 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
7595 | | (XINT (key) & ~0x3ffff))); | |
7596 | ||
3fe8e9a2 RS |
7597 | /* We have to do this unconditionally, regardless of whether |
7598 | the lower-case char is defined in the keymaps, because they | |
7599 | might get translated through function-key-map. */ | |
7600 | keybuf[t - 1] = new_key; | |
7601 | mock_input = t; | |
7602 | ||
7603 | fkey_map = prev_fkey_map; | |
7604 | fkey_start = prev_fkey_start; | |
7605 | fkey_end = prev_fkey_end; | |
7606 | ||
7607 | keytran_map = prev_keytran_map; | |
7608 | keytran_start = prev_keytran_start; | |
7609 | keytran_end = prev_keytran_end; | |
7610 | ||
7611 | goto replay_sequence; | |
4e50f26a | 7612 | } |
ef8fd672 RS |
7613 | /* If KEY is not defined in any of the keymaps, |
7614 | and cannot be part of a function key or translation, | |
7615 | and is a shifted function key, | |
7616 | use the corresponding unshifted function key instead. */ | |
7617 | if (first_binding == nmaps && ! function_key_possible | |
7618 | && ! key_translation_possible | |
7619 | && SYMBOLP (key)) | |
7620 | { | |
7621 | Lisp_Object breakdown; | |
7622 | int modifiers; | |
7623 | ||
7624 | breakdown = parse_modifiers (key); | |
7625 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
7626 | if (modifiers & shift_modifier) | |
7627 | { | |
569871d2 | 7628 | Lisp_Object new_key; |
3fe8e9a2 RS |
7629 | |
7630 | original_uppercase = key; | |
7631 | original_uppercase_position = t - 1; | |
ef8fd672 | 7632 | |
569871d2 RS |
7633 | modifiers &= ~shift_modifier; |
7634 | new_key = apply_modifiers (modifiers, | |
7635 | XCONS (breakdown)->car); | |
7636 | ||
3fe8e9a2 RS |
7637 | keybuf[t - 1] = new_key; |
7638 | mock_input = t; | |
7639 | ||
7640 | fkey_map = prev_fkey_map; | |
7641 | fkey_start = prev_fkey_start; | |
7642 | fkey_end = prev_fkey_end; | |
7643 | ||
7644 | keytran_map = prev_keytran_map; | |
7645 | keytran_start = prev_keytran_start; | |
7646 | keytran_end = prev_keytran_end; | |
7647 | ||
7648 | goto replay_sequence; | |
ef8fd672 RS |
7649 | } |
7650 | } | |
284f4730 JB |
7651 | } |
7652 | ||
309b0fc8 | 7653 | if (!dummyflag) |
bc536d84 RS |
7654 | read_key_sequence_cmd = (first_binding < nmaps |
7655 | ? defs[first_binding] | |
7656 | : Qnil); | |
284f4730 | 7657 | |
cd21b839 | 7658 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 7659 | unbind_to (count, Qnil); |
07f76a14 | 7660 | |
3fe8e9a2 RS |
7661 | /* Don't downcase the last character if the caller says don't. |
7662 | Don't downcase it if the result is undefined, either. */ | |
7663 | if ((dont_downcase_last || first_binding >= nmaps) | |
7664 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
7665 | keybuf[t - 1] = original_uppercase; |
7666 | ||
07f76a14 JB |
7667 | /* Occasionally we fabricate events, perhaps by expanding something |
7668 | according to function-key-map, or by adding a prefix symbol to a | |
7669 | mouse click in the scroll bar or modeline. In this cases, return | |
7670 | the entire generated key sequence, even if we hit an unbound | |
7671 | prefix or a definition before the end. This means that you will | |
7672 | be able to push back the event properly, and also means that | |
7673 | read-key-sequence will always return a logical unit. | |
7674 | ||
7675 | Better ideas? */ | |
cca310da JB |
7676 | for (; t < mock_input; t++) |
7677 | { | |
a98ea3f9 RS |
7678 | if (echo_keystrokes) |
7679 | echo_char (keybuf[t]); | |
cca310da JB |
7680 | add_command_key (keybuf[t]); |
7681 | } | |
07f76a14 | 7682 | |
7d18f9ae RS |
7683 | |
7684 | ||
284f4730 JB |
7685 | return t; |
7686 | } | |
7687 | ||
a612e298 RS |
7688 | #if 0 /* This doc string is too long for some compilers. |
7689 | This commented-out definition serves for DOC. */ | |
ce98e608 | 7690 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
7691 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
7692 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
7693 | current local and global maps.\n\ | |
7694 | \n\ | |
c0a58692 RS |
7695 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
7696 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
7697 | as a continuation of the previous key.\n\ | |
284f4730 | 7698 | \n\ |
309b0fc8 RS |
7699 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
7700 | convert the last event to lower case. (Normally any upper case event\n\ | |
7701 | is converted to lower case if the original event is undefined and the lower\n\ | |
7702 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
7703 | a key sequence to be defined.\n\ | |
7704 | \n\ | |
cb5df6ae JB |
7705 | A C-g typed while in this function is treated like any other character,\n\ |
7706 | and `quit-flag' is not set.\n\ | |
7707 | \n\ | |
7708 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
7709 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
7710 | of the selected window as normal.\n\ | |
ede41463 | 7711 | ""\n\ |
cb5df6ae JB |
7712 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
7713 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
7714 | or multi-click event is unbound, but the corresponding click event would\n\ |
7715 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 7716 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 7717 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
7718 | \n\ |
7719 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
7720 | lines separating windows, and scroll bars with imaginary keys\n\ |
7721 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 7722 | \n\ |
ce98e608 KH |
7723 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
7724 | function will process a switch-frame event if the user switches frames\n\ | |
7725 | before typing anything. If the user switches frames in the middle of a\n\ | |
7726 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
7727 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
7728 | \n\ |
7729 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
7730 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
7731 | `function-key-map' for more details.\n\ |
7732 | \n\ | |
7733 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
7734 | that this key sequence is being read by something that will\n\ | |
7735 | read commands one after another. It should be nil if the caller\n\ | |
7736 | will read just one key sequence.") | |
b638f328 | 7737 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
7738 | #endif |
7739 | ||
d5eecefb | 7740 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 7741 | 0) |
d5eecefb RS |
7742 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
7743 | command_loop) | |
309b0fc8 | 7744 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 7745 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
7746 | { |
7747 | Lisp_Object keybuf[30]; | |
7748 | register int i; | |
7749 | struct gcpro gcpro1, gcpro2; | |
d5eecefb | 7750 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
7751 | |
7752 | if (!NILP (prompt)) | |
7753 | CHECK_STRING (prompt, 0); | |
7754 | QUIT; | |
7755 | ||
d5eecefb RS |
7756 | specbind (Qinput_method_exit_on_first_char, |
7757 | (NILP (command_loop) ? Qt : Qnil)); | |
7758 | specbind (Qinput_method_use_echo_area, | |
7759 | (NILP (command_loop) ? Qt : Qnil)); | |
7760 | ||
284f4730 JB |
7761 | bzero (keybuf, sizeof keybuf); |
7762 | GCPRO1 (keybuf[0]); | |
7763 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
7764 | ||
daa37602 | 7765 | if (NILP (continue_echo)) |
6321824f RS |
7766 | { |
7767 | this_command_key_count = 0; | |
7768 | this_single_command_key_start = 0; | |
7769 | } | |
c0a58692 | 7770 | |
309b0fc8 | 7771 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 7772 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 7773 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 7774 | |
dcc408a0 RS |
7775 | if (i == -1) |
7776 | { | |
7777 | Vquit_flag = Qt; | |
7778 | QUIT; | |
7779 | } | |
284f4730 | 7780 | UNGCPRO; |
d5eecefb | 7781 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 7782 | } |
e39da3d7 RS |
7783 | |
7784 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 7785 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 7786 | "Like `read-key-sequence' but always return a vector.") |
d5eecefb RS |
7787 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
7788 | command_loop) | |
e39da3d7 | 7789 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 7790 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
7791 | { |
7792 | Lisp_Object keybuf[30]; | |
7793 | register int i; | |
7794 | struct gcpro gcpro1, gcpro2; | |
d5eecefb | 7795 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
7796 | |
7797 | if (!NILP (prompt)) | |
7798 | CHECK_STRING (prompt, 0); | |
7799 | QUIT; | |
7800 | ||
d5eecefb RS |
7801 | specbind (Qinput_method_exit_on_first_char, |
7802 | (NILP (command_loop) ? Qt : Qnil)); | |
7803 | specbind (Qinput_method_use_echo_area, | |
7804 | (NILP (command_loop) ? Qt : Qnil)); | |
7805 | ||
e39da3d7 RS |
7806 | bzero (keybuf, sizeof keybuf); |
7807 | GCPRO1 (keybuf[0]); | |
7808 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
7809 | ||
7810 | if (NILP (continue_echo)) | |
7811 | { | |
7812 | this_command_key_count = 0; | |
7813 | this_single_command_key_start = 0; | |
7814 | } | |
7815 | ||
7816 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), | |
7817 | prompt, ! NILP (dont_downcase_last), | |
7818 | ! NILP (can_return_switch_frame), 0); | |
7819 | ||
7820 | if (i == -1) | |
7821 | { | |
7822 | Vquit_flag = Qt; | |
7823 | QUIT; | |
7824 | } | |
7825 | UNGCPRO; | |
d5eecefb | 7826 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 7827 | } |
284f4730 | 7828 | \f |
158f7532 | 7829 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
7830 | "Execute CMD as an editor command.\n\ |
7831 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
7832 | Optional second arg RECORD-FLAG non-nil\n\ | |
7833 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
7834 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
7835 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 7836 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
7837 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
7838 | a special event, so ignore the prefix argument and don't clear it.") | |
7839 | (cmd, record_flag, keys, special) | |
7840 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
7841 | { |
7842 | register Lisp_Object final; | |
7843 | register Lisp_Object tem; | |
7844 | Lisp_Object prefixarg; | |
7845 | struct backtrace backtrace; | |
7846 | extern int debug_on_next_call; | |
7847 | ||
284f4730 JB |
7848 | debug_on_next_call = 0; |
7849 | ||
158f7532 RS |
7850 | if (NILP (special)) |
7851 | { | |
7852 | prefixarg = current_kboard->Vprefix_arg; | |
7853 | Vcurrent_prefix_arg = prefixarg; | |
7854 | current_kboard->Vprefix_arg = Qnil; | |
7855 | } | |
7856 | else | |
7857 | prefixarg = Qnil; | |
7858 | ||
8c18cbfb | 7859 | if (SYMBOLP (cmd)) |
284f4730 JB |
7860 | { |
7861 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 7862 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
7863 | { |
7864 | tem = Fsymbol_value (Qdisabled_command_hook); | |
7865 | if (!NILP (tem)) | |
7866 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
7867 | } | |
284f4730 JB |
7868 | } |
7869 | ||
01e26217 | 7870 | while (1) |
284f4730 | 7871 | { |
ffd56f97 | 7872 | final = Findirect_function (cmd); |
284f4730 JB |
7873 | |
7874 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
7875 | { |
7876 | struct gcpro gcpro1, gcpro2; | |
7877 | ||
7878 | GCPRO2 (cmd, prefixarg); | |
7879 | do_autoload (final, cmd); | |
7880 | UNGCPRO; | |
7881 | } | |
284f4730 JB |
7882 | else |
7883 | break; | |
7884 | } | |
7885 | ||
8c18cbfb | 7886 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
7887 | { |
7888 | /* If requested, place the macro in the command history. For | |
7889 | other sorts of commands, call-interactively takes care of | |
7890 | this. */ | |
e57d8fd8 | 7891 | if (!NILP (record_flag)) |
f4385381 RS |
7892 | { |
7893 | Vcommand_history | |
7894 | = Fcons (Fcons (Qexecute_kbd_macro, | |
7895 | Fcons (final, Fcons (prefixarg, Qnil))), | |
7896 | Vcommand_history); | |
7897 | ||
7898 | /* Don't keep command history around forever. */ | |
7899 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
7900 | { | |
7901 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
7902 | if (CONSP (tem)) | |
7903 | XCONS (tem)->cdr = Qnil; | |
7904 | } | |
7905 | } | |
284f4730 JB |
7906 | |
7907 | return Fexecute_kbd_macro (final, prefixarg); | |
7908 | } | |
f4385381 | 7909 | |
8c18cbfb | 7910 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
7911 | { |
7912 | backtrace.next = backtrace_list; | |
7913 | backtrace_list = &backtrace; | |
7914 | backtrace.function = &Qcall_interactively; | |
7915 | backtrace.args = &cmd; | |
7916 | backtrace.nargs = 1; | |
7917 | backtrace.evalargs = 0; | |
7918 | ||
e57d8fd8 | 7919 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
7920 | |
7921 | backtrace_list = backtrace.next; | |
7922 | return tem; | |
7923 | } | |
7924 | return Qnil; | |
7925 | } | |
7926 | \f | |
284f4730 JB |
7927 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
7928 | 1, 1, "P", | |
7929 | "Read function name, then read its arguments and call it.") | |
7930 | (prefixarg) | |
7931 | Lisp_Object prefixarg; | |
7932 | { | |
7933 | Lisp_Object function; | |
7934 | char buf[40]; | |
7935 | Lisp_Object saved_keys; | |
5434fce6 | 7936 | Lisp_Object bindings, value; |
214360e9 | 7937 | struct gcpro gcpro1, gcpro2; |
284f4730 | 7938 | |
b0f2a7bf KH |
7939 | saved_keys = Fvector (this_command_key_count, |
7940 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 7941 | buf[0] = 0; |
fde7aff8 | 7942 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
7943 | |
7944 | if (EQ (prefixarg, Qminus)) | |
7945 | strcpy (buf, "- "); | |
7946 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
7947 | strcpy (buf, "C-u "); | |
8c18cbfb | 7948 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
7949 | { |
7950 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7951 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
7952 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7953 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
7954 | else | |
7955 | abort (); | |
7956 | } | |
8c18cbfb | 7957 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
7958 | { |
7959 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7960 | sprintf (buf, "%d ", XINT (prefixarg)); | |
7961 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
7962 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
7963 | else | |
7964 | abort (); | |
7965 | } | |
284f4730 JB |
7966 | |
7967 | /* This isn't strictly correct if execute-extended-command | |
7968 | is bound to anything else. Perhaps it should use | |
7969 | this_command_keys? */ | |
7970 | strcat (buf, "M-x "); | |
7971 | ||
7972 | /* Prompt with buf, and then read a string, completing from and | |
7973 | restricting to the set of all defined commands. Don't provide | |
51763820 | 7974 | any initial input. Save the command read on the extended-command |
03b4122a | 7975 | history list. */ |
284f4730 JB |
7976 | function = Fcompleting_read (build_string (buf), |
7977 | Vobarray, Qcommandp, | |
4328577a KH |
7978 | Qt, Qnil, Qextended_command_history, Qnil, |
7979 | Qnil); | |
284f4730 | 7980 | |
1f5b1641 RS |
7981 | if (STRINGP (function) && XSTRING (function)->size == 0) |
7982 | error ("No command name given"); | |
7983 | ||
1113d9db JB |
7984 | /* Set this_command_keys to the concatenation of saved_keys and |
7985 | function, followed by a RET. */ | |
284f4730 | 7986 | { |
1113d9db | 7987 | struct Lisp_String *str; |
b0f2a7bf | 7988 | Lisp_Object *keys; |
284f4730 | 7989 | int i; |
284f4730 | 7990 | |
1113d9db | 7991 | this_command_key_count = 0; |
6321824f | 7992 | this_single_command_key_start = 0; |
1113d9db | 7993 | |
b0f2a7bf KH |
7994 | keys = XVECTOR (saved_keys)->contents; |
7995 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
7996 | add_command_key (keys[i]); | |
1113d9db JB |
7997 | |
7998 | str = XSTRING (function); | |
7999 | for (i = 0; i < str->size; i++) | |
301738ed | 8000 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 8001 | |
301738ed | 8002 | add_command_key (make_number ('\015')); |
284f4730 JB |
8003 | } |
8004 | ||
8005 | UNGCPRO; | |
8006 | ||
0a7f1fc0 | 8007 | function = Fintern (function, Qnil); |
d8bcf58e | 8008 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
8009 | Vthis_command = function; |
8010 | real_this_command = function; | |
284f4730 | 8011 | |
6526ab49 RS |
8012 | /* If enabled, show which key runs this command. */ |
8013 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 8014 | && NILP (Vexecuting_macro) |
6526ab49 | 8015 | && SYMBOLP (function)) |
5434fce6 RS |
8016 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8017 | Qt, Qnil); | |
8018 | else | |
8019 | bindings = Qnil; | |
6526ab49 | 8020 | |
5434fce6 RS |
8021 | value = Qnil; |
8022 | GCPRO2 (bindings, value); | |
8023 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 8024 | |
5434fce6 | 8025 | /* If the command has a key binding, print it now. */ |
3ababa60 | 8026 | if (!NILP (bindings) |
ee112567 KH |
8027 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
8028 | Qmouse_movement))) | |
5434fce6 RS |
8029 | { |
8030 | /* But first wait, and skip the message if there is input. */ | |
426939cc RS |
8031 | int delay_time; |
8032 | if (echo_area_glyphs != 0) | |
8033 | /* This command displayed something in the echo area; | |
8034 | so wait a few seconds, then display our suggestion message. */ | |
8035 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
8036 | ? XINT (Vsuggest_key_bindings) : 2); | |
8037 | else | |
8038 | /* This command left the echo area empty, | |
8039 | so display our message immediately. */ | |
8040 | delay_time = 0; | |
8041 | ||
8042 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 8043 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 8044 | { |
5434fce6 RS |
8045 | Lisp_Object binding; |
8046 | char *newmessage; | |
8047 | char *oldmessage = echo_area_glyphs; | |
8048 | int oldmessage_len = echo_area_glyphs_length; | |
30c6e062 | 8049 | int oldmultibyte = message_enable_multibyte; |
5434fce6 RS |
8050 | |
8051 | binding = Fkey_description (bindings); | |
8052 | ||
8053 | newmessage | |
8054 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 8055 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 8056 | + 100); |
3ababa60 | 8057 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 8058 | XSYMBOL (function)->name->data, |
5434fce6 | 8059 | XSTRING (binding)->data); |
301738ed RS |
8060 | message2_nolog (newmessage, |
8061 | strlen (newmessage), | |
8062 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
8063 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
8064 | ? Vsuggest_key_bindings : make_number (2)), | |
8065 | Qnil, Qnil))) | |
a59b172a | 8066 | message2_nolog (oldmessage, oldmessage_len, oldmultibyte); |
6526ab49 RS |
8067 | } |
8068 | } | |
8069 | ||
5434fce6 | 8070 | RETURN_UNGCPRO (value); |
284f4730 | 8071 | } |
6526ab49 RS |
8072 | |
8073 | /* Find the set of keymaps now active. | |
8074 | Store into *MAPS_P a vector holding the various maps | |
8075 | and return the number of them. The vector was malloc'd | |
8076 | and the caller should free it. */ | |
8077 | ||
8078 | int | |
8079 | current_active_maps (maps_p) | |
8080 | Lisp_Object **maps_p; | |
8081 | { | |
8082 | Lisp_Object *tmaps, *maps; | |
8083 | int nmaps; | |
8084 | ||
8085 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
8086 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8087 | { | |
8088 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8089 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
8090 | nmaps = 0; | |
8091 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8092 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8093 | if (!NILP (Voverriding_local_map)) | |
8094 | maps[nmaps++] = Voverriding_local_map; | |
8095 | } | |
8096 | else | |
8097 | { | |
8098 | /* No, so use major and minor mode keymaps. */ | |
8099 | nmaps = current_minor_maps (NULL, &tmaps); | |
8100 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
8101 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
8102 | #ifdef USE_TEXT_PROPERTIES | |
8103 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
8104 | #else | |
8105 | maps[nmaps++] = current_buffer->keymap; | |
8106 | #endif | |
8107 | } | |
8108 | maps[nmaps++] = current_global_map; | |
8109 | ||
8110 | *maps_p = maps; | |
8111 | return nmaps; | |
8112 | } | |
284f4730 | 8113 | \f |
d9d4c147 | 8114 | /* Return nonzero if input events are pending. */ |
284f4730 | 8115 | |
dfcf069d | 8116 | int |
284f4730 JB |
8117 | detect_input_pending () |
8118 | { | |
8119 | if (!input_pending) | |
d9d4c147 KH |
8120 | get_input_pending (&input_pending, 0); |
8121 | ||
8122 | return input_pending; | |
8123 | } | |
8124 | ||
b1878f45 | 8125 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 8126 | |
dfcf069d | 8127 | int |
87dd9b9b RS |
8128 | detect_input_pending_run_timers (do_display) |
8129 | int do_display; | |
d9d4c147 | 8130 | { |
87dd9b9b RS |
8131 | int old_timers_run = timers_run; |
8132 | ||
d9d4c147 KH |
8133 | if (!input_pending) |
8134 | get_input_pending (&input_pending, 1); | |
284f4730 | 8135 | |
87dd9b9b RS |
8136 | if (old_timers_run != timers_run && do_display) |
8137 | redisplay_preserve_echo_area (); | |
8138 | ||
284f4730 JB |
8139 | return input_pending; |
8140 | } | |
8141 | ||
ffd56f97 JB |
8142 | /* This is called in some cases before a possible quit. |
8143 | It cases the next call to detect_input_pending to recompute input_pending. | |
8144 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
8145 | |
8146 | void | |
ffd56f97 JB |
8147 | clear_input_pending () |
8148 | { | |
8149 | input_pending = 0; | |
8150 | } | |
8151 | ||
b1878f45 RS |
8152 | /* Return nonzero if there are pending requeued events. |
8153 | This isn't used yet. The hope is to make wait_reading_process_input | |
8154 | call it, and return return if it runs Lisp code that unreads something. | |
8155 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
8156 | to do in that case. It isn't trivial. */ | |
8157 | ||
dfcf069d | 8158 | int |
b1878f45 RS |
8159 | requeued_events_pending_p () |
8160 | { | |
8161 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
8162 | } | |
8163 | ||
8164 | ||
284f4730 JB |
8165 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
8166 | "T if command input is currently available with no waiting.\n\ | |
8167 | Actually, the value is nil only if we can be sure that no input is available.") | |
8168 | () | |
8169 | { | |
24597608 | 8170 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
8171 | return (Qt); |
8172 | ||
d9d4c147 KH |
8173 | get_input_pending (&input_pending, 1); |
8174 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
8175 | } |
8176 | ||
8177 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 8178 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
8179 | () |
8180 | { | |
5160df46 | 8181 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
8182 | Lisp_Object val; |
8183 | ||
8184 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 8185 | return Fvector (total_keys, keys); |
284f4730 JB |
8186 | else |
8187 | { | |
5160df46 JB |
8188 | val = Fvector (NUM_RECENT_KEYS, keys); |
8189 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
8190 | XVECTOR (val)->contents, |
8191 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 8192 | bcopy (keys, |
284f4730 JB |
8193 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
8194 | recent_keys_index * sizeof (Lisp_Object)); | |
8195 | return val; | |
8196 | } | |
8197 | } | |
8198 | ||
8199 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
8200 | "Return the key sequence that invoked this command.\n\ |
8201 | The value is a string or a vector.") | |
284f4730 JB |
8202 | () |
8203 | { | |
86e5706b RS |
8204 | return make_event_array (this_command_key_count, |
8205 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
8206 | } |
8207 | ||
e39da3d7 RS |
8208 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
8209 | "Return the key sequence that invoked this command, as a vector.") | |
8210 | () | |
8211 | { | |
8212 | return Fvector (this_command_key_count, | |
8213 | XVECTOR (this_command_keys)->contents); | |
8214 | } | |
8215 | ||
6321824f RS |
8216 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
8217 | Sthis_single_command_keys, 0, 0, 0, | |
8218 | "Return the key sequence that invoked this command.\n\ | |
8219 | Unlike `this-command-keys', this function's value\n\ | |
8220 | does not include prefix arguments.\n\ | |
e39da3d7 | 8221 | The value is always a vector.") |
6321824f RS |
8222 | () |
8223 | { | |
e39da3d7 RS |
8224 | return Fvector (this_command_key_count |
8225 | - this_single_command_key_start, | |
8226 | (XVECTOR (this_command_keys)->contents | |
8227 | + this_single_command_key_start)); | |
6321824f RS |
8228 | } |
8229 | ||
7d18f9ae RS |
8230 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
8231 | Sthis_single_command_raw_keys, 0, 0, 0, | |
8232 | "Return the raw events that were read for this command.\n\ | |
8233 | Unlike `this-single-command-keys', this function's value\n\ | |
8234 | shows the events before all translations (except for input methods).\n\ | |
8235 | The value is always a vector.") | |
8236 | () | |
8237 | { | |
8238 | return Fvector (raw_keybuf_count, | |
8239 | (XVECTOR (raw_keybuf)->contents)); | |
8240 | } | |
8241 | ||
71918b75 RS |
8242 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
8243 | Sreset_this_command_lengths, 0, 0, 0, | |
8244 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
8245 | \n\ | |
8246 | `universal-argument-other-key' rereads the event just typed.\n\ | |
8247 | It then gets translated through `function-key-map'.\n\ | |
8248 | The translated event gets included in the echo area and in\n\ | |
8249 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
8250 | That is not right.\n\ | |
8251 | \n\ | |
8252 | Calling this function directs the translated event to replace\n\ | |
8253 | the original event, so that only one version of the event actually\n\ | |
8254 | appears in the echo area and in the value of `this-command-keys.'.") | |
8255 | () | |
8256 | { | |
8257 | before_command_restore_flag = 1; | |
8258 | before_command_key_count_1 = before_command_key_count; | |
8259 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 8260 | return Qnil; |
71918b75 RS |
8261 | } |
8262 | ||
82e6e5af RS |
8263 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
8264 | Sclear_this_command_keys, 0, 0, 0, | |
8265 | "Clear out the vector that `this-command-keys' returns.") | |
8266 | () | |
8267 | { | |
8268 | this_command_key_count = 0; | |
8269 | return Qnil; | |
8270 | } | |
8271 | ||
284f4730 JB |
8272 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
8273 | "Return the current depth in recursive edits.") | |
8274 | () | |
8275 | { | |
8276 | Lisp_Object temp; | |
bb9e9bed | 8277 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
8278 | return temp; |
8279 | } | |
8280 | ||
8281 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
8282 | "FOpen dribble file: ", | |
9b2471df RS |
8283 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
8284 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
8285 | (file) |
8286 | Lisp_Object file; | |
8287 | { | |
6cb52def | 8288 | if (dribble) |
284f4730 | 8289 | { |
6cb52def KH |
8290 | fclose (dribble); |
8291 | dribble = 0; | |
284f4730 | 8292 | } |
6cb52def | 8293 | if (!NILP (file)) |
284f4730 JB |
8294 | { |
8295 | file = Fexpand_file_name (file, Qnil); | |
8296 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
8297 | if (dribble == 0) |
8298 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
8299 | } |
8300 | return Qnil; | |
8301 | } | |
8302 | ||
8303 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
8304 | "Discard the contents of the terminal input buffer.\n\ | |
8305 | Also cancel any kbd macro being defined.") | |
8306 | () | |
8307 | { | |
c5fdd383 | 8308 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
8309 | update_mode_lines++; |
8310 | ||
24597608 | 8311 | Vunread_command_events = Qnil; |
86e5706b | 8312 | unread_command_char = -1; |
284f4730 JB |
8313 | |
8314 | discard_tty_input (); | |
8315 | ||
ff0b5f4c JB |
8316 | /* Without the cast, GCC complains that this assignment loses the |
8317 | volatile qualifier of kbd_store_ptr. Is there anything wrong | |
8318 | with that? */ | |
beecf6a1 KH |
8319 | kbd_fetch_ptr = (struct input_event *) kbd_store_ptr; |
8320 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
284f4730 JB |
8321 | input_pending = 0; |
8322 | ||
8323 | return Qnil; | |
8324 | } | |
8325 | \f | |
8326 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
8327 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
8328 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
8329 | control, run a subshell instead.\n\n\ | |
284f4730 | 8330 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
8331 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
8332 | \n\ | |
bbdc2092 RS |
8333 | Before suspending, run the normal hook `suspend-hook'.\n\ |
8334 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
8335 | \n\ |
8336 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 8337 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
8338 | (stuffstring) |
8339 | Lisp_Object stuffstring; | |
8340 | { | |
3a69360c | 8341 | Lisp_Object tem; |
284f4730 JB |
8342 | int count = specpdl_ptr - specpdl; |
8343 | int old_height, old_width; | |
8344 | int width, height; | |
b7d2ebbf | 8345 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
8346 | |
8347 | if (!NILP (stuffstring)) | |
8348 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 8349 | |
1e95ed28 JB |
8350 | /* Run the functions in suspend-hook. */ |
8351 | if (!NILP (Vrun_hooks)) | |
8352 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 8353 | |
b7d2ebbf | 8354 | GCPRO1 (stuffstring); |
ff11dfa1 | 8355 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
8356 | reset_sys_modes (); |
8357 | /* sys_suspend can get an error if it tries to fork a subshell | |
8358 | and the system resources aren't available for that. */ | |
91a0da02 | 8359 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 8360 | Qnil); |
284f4730 | 8361 | stuff_buffered_input (stuffstring); |
8026024c KH |
8362 | if (cannot_suspend) |
8363 | sys_subshell (); | |
8364 | else | |
8365 | sys_suspend (); | |
284f4730 JB |
8366 | unbind_to (count, Qnil); |
8367 | ||
8368 | /* Check if terminal/window size has changed. | |
8369 | Note that this is not useful when we are running directly | |
8370 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 8371 | get_frame_size (&width, &height); |
284f4730 | 8372 | if (width != old_width || height != old_height) |
f5ea6163 | 8373 | change_frame_size (selected_frame, height, width, 0, 0); |
284f4730 | 8374 | |
1e95ed28 | 8375 | /* Run suspend-resume-hook. */ |
284f4730 JB |
8376 | if (!NILP (Vrun_hooks)) |
8377 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 8378 | |
284f4730 JB |
8379 | UNGCPRO; |
8380 | return Qnil; | |
8381 | } | |
8382 | ||
8383 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 8384 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 8385 | |
07a59269 | 8386 | void |
284f4730 JB |
8387 | stuff_buffered_input (stuffstring) |
8388 | Lisp_Object stuffstring; | |
8389 | { | |
284f4730 | 8390 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 8391 | #ifdef BSD_SYSTEM |
284f4730 | 8392 | #ifndef BSD4_1 |
612b78ef | 8393 | register unsigned char *p; |
612b78ef | 8394 | |
8c18cbfb | 8395 | if (STRINGP (stuffstring)) |
284f4730 JB |
8396 | { |
8397 | register int count; | |
8398 | ||
8399 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 8400 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
8401 | while (count-- > 0) |
8402 | stuff_char (*p++); | |
8403 | stuff_char ('\n'); | |
8404 | } | |
8405 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 8406 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 8407 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 8408 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 8409 | { |
beecf6a1 KH |
8410 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
8411 | kbd_fetch_ptr = kbd_buffer; | |
8412 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
8413 | stuff_char (kbd_fetch_ptr->code); | |
8414 | kbd_fetch_ptr->kind = no_event; | |
8415 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
8416 | - kbd_buffer] | |
7b4aedb9 | 8417 | = Qnil); |
284f4730 JB |
8418 | } |
8419 | input_pending = 0; | |
8420 | #endif | |
6df54671 | 8421 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
8422 | } |
8423 | \f | |
dfcf069d | 8424 | void |
ffd56f97 JB |
8425 | set_waiting_for_input (time_to_clear) |
8426 | EMACS_TIME *time_to_clear; | |
284f4730 | 8427 | { |
ffd56f97 | 8428 | input_available_clear_time = time_to_clear; |
284f4730 JB |
8429 | |
8430 | /* Tell interrupt_signal to throw back to read_char, */ | |
8431 | waiting_for_input = 1; | |
8432 | ||
8433 | /* If interrupt_signal was called before and buffered a C-g, | |
8434 | make it run again now, to avoid timing error. */ | |
8435 | if (!NILP (Vquit_flag)) | |
8436 | quit_throw_to_read_char (); | |
284f4730 JB |
8437 | } |
8438 | ||
07a59269 | 8439 | void |
284f4730 JB |
8440 | clear_waiting_for_input () |
8441 | { | |
8442 | /* Tell interrupt_signal not to throw back to read_char, */ | |
8443 | waiting_for_input = 0; | |
ffd56f97 | 8444 | input_available_clear_time = 0; |
284f4730 JB |
8445 | } |
8446 | ||
8447 | /* This routine is called at interrupt level in response to C-G. | |
8448 | If interrupt_input, this is the handler for SIGINT. | |
8449 | Otherwise, it is called from kbd_buffer_store_event, | |
8450 | in handling SIGIO or SIGTINT. | |
8451 | ||
8452 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
8453 | immediately throw back to read_char. | |
8454 | ||
8455 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
8456 | This causes eval to throw, when it gets a chance. | |
8457 | If quit-flag is already non-nil, it stops the job right away. */ | |
8458 | ||
8459 | SIGTYPE | |
91c049d4 RS |
8460 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
8461 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
8462 | { |
8463 | char c; | |
8464 | /* Must preserve main program's value of errno. */ | |
8465 | int old_errno = errno; | |
284f4730 | 8466 | |
5970a8cb | 8467 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
8468 | if (!read_socket_hook && NILP (Vwindow_system)) |
8469 | { | |
8470 | /* USG systems forget handlers when they are used; | |
8471 | must reestablish each time */ | |
8472 | signal (SIGINT, interrupt_signal); | |
8473 | signal (SIGQUIT, interrupt_signal); | |
8474 | } | |
284f4730 JB |
8475 | #endif /* USG */ |
8476 | ||
8477 | cancel_echoing (); | |
8478 | ||
31e4e97b EZ |
8479 | if (!NILP (Vquit_flag) |
8480 | && (FRAME_TERMCAP_P (selected_frame) || FRAME_MSDOS_P (selected_frame))) | |
284f4730 | 8481 | { |
31e4e97b EZ |
8482 | /* If SIGINT isn't blocked, don't let us be interrupted by |
8483 | another SIGINT, it might be harmful due to non-reentrancy | |
8484 | in I/O functions. */ | |
8485 | sigblock (sigmask (SIGINT)); | |
8486 | ||
284f4730 JB |
8487 | fflush (stdout); |
8488 | reset_sys_modes (); | |
31e4e97b | 8489 | |
284f4730 JB |
8490 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
8491 | /* | |
8492 | * On systems which can suspend the current process and return to the original | |
8493 | * shell, this command causes the user to end up back at the shell. | |
8494 | * The "Auto-save" and "Abort" questions are not asked until | |
8495 | * the user elects to return to emacs, at which point he can save the current | |
8496 | * job and either dump core or continue. | |
8497 | */ | |
8498 | sys_suspend (); | |
8499 | #else | |
8500 | #ifdef VMS | |
8501 | if (sys_suspend () == -1) | |
8502 | { | |
8503 | printf ("Not running as a subprocess;\n"); | |
8504 | printf ("you can continue or abort.\n"); | |
8505 | } | |
8506 | #else /* not VMS */ | |
8507 | /* Perhaps should really fork an inferior shell? | |
8508 | But that would not provide any way to get back | |
8509 | to the original shell, ever. */ | |
8510 | printf ("No support for stopping a process on this operating system;\n"); | |
8511 | printf ("you can continue or abort.\n"); | |
8512 | #endif /* not VMS */ | |
8513 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
8514 | #ifdef MSDOS |
8515 | /* We must remain inside the screen area when the internal terminal | |
8516 | is used. Note that [Enter] is not echoed by dos. */ | |
8517 | cursor_to (0, 0); | |
8518 | #endif | |
118d6ca9 RS |
8519 | /* It doesn't work to autosave while GC is in progress; |
8520 | the code used for auto-saving doesn't cope with the mark bit. */ | |
8521 | if (!gc_in_progress) | |
9fd7d808 | 8522 | { |
118d6ca9 RS |
8523 | printf ("Auto-save? (y or n) "); |
8524 | fflush (stdout); | |
8525 | if (((c = getchar ()) & ~040) == 'Y') | |
8526 | { | |
8527 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 8528 | #ifdef MSDOS |
118d6ca9 | 8529 | printf ("\r\nAuto-save done"); |
80e4aa30 | 8530 | #else /* not MSDOS */ |
118d6ca9 | 8531 | printf ("Auto-save done\n"); |
80e4aa30 | 8532 | #endif /* not MSDOS */ |
118d6ca9 RS |
8533 | } |
8534 | while (c != '\n') c = getchar (); | |
9fd7d808 | 8535 | } |
118d6ca9 RS |
8536 | else |
8537 | { | |
8538 | /* During GC, it must be safe to reenable quitting again. */ | |
8539 | Vinhibit_quit = Qnil; | |
8540 | #ifdef MSDOS | |
8541 | printf ("\r\n"); | |
8542 | #endif /* not MSDOS */ | |
8543 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
8544 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
8545 | fflush (stdout); | |
8546 | } | |
8547 | ||
80e4aa30 RS |
8548 | #ifdef MSDOS |
8549 | printf ("\r\nAbort? (y or n) "); | |
8550 | #else /* not MSDOS */ | |
284f4730 JB |
8551 | #ifdef VMS |
8552 | printf ("Abort (and enter debugger)? (y or n) "); | |
8553 | #else /* not VMS */ | |
8554 | printf ("Abort (and dump core)? (y or n) "); | |
8555 | #endif /* not VMS */ | |
80e4aa30 | 8556 | #endif /* not MSDOS */ |
284f4730 JB |
8557 | fflush (stdout); |
8558 | if (((c = getchar ()) & ~040) == 'Y') | |
8559 | abort (); | |
8560 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
8561 | #ifdef MSDOS |
8562 | printf ("\r\nContinuing...\r\n"); | |
8563 | #else /* not MSDOS */ | |
284f4730 | 8564 | printf ("Continuing...\n"); |
80e4aa30 | 8565 | #endif /* not MSDOS */ |
284f4730 JB |
8566 | fflush (stdout); |
8567 | init_sys_modes (); | |
31e4e97b | 8568 | sigfree (); |
284f4730 JB |
8569 | } |
8570 | else | |
8571 | { | |
8572 | /* If executing a function that wants to be interrupted out of | |
8573 | and the user has not deferred quitting by binding `inhibit-quit' | |
8574 | then quit right away. */ | |
8575 | if (immediate_quit && NILP (Vinhibit_quit)) | |
8576 | { | |
e39da3d7 RS |
8577 | struct gl_state_s saved; |
8578 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
8579 | ||
284f4730 JB |
8580 | immediate_quit = 0; |
8581 | sigfree (); | |
e39da3d7 RS |
8582 | saved = gl_state; |
8583 | GCPRO4 (saved.object, saved.global_code, | |
8584 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 8585 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
8586 | gl_state = saved; |
8587 | UNGCPRO; | |
284f4730 JB |
8588 | } |
8589 | else | |
8590 | /* Else request quit when it's safe */ | |
8591 | Vquit_flag = Qt; | |
8592 | } | |
8593 | ||
8594 | if (waiting_for_input && !echoing) | |
8595 | quit_throw_to_read_char (); | |
8596 | ||
8597 | errno = old_errno; | |
8598 | } | |
8599 | ||
8600 | /* Handle a C-g by making read_char return C-g. */ | |
8601 | ||
07a59269 | 8602 | void |
284f4730 JB |
8603 | quit_throw_to_read_char () |
8604 | { | |
8605 | quit_error_check (); | |
8606 | sigfree (); | |
8607 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 8608 | clear_waiting_for_input (); |
284f4730 JB |
8609 | input_pending = 0; |
8610 | ||
24597608 | 8611 | Vunread_command_events = Qnil; |
86e5706b | 8612 | unread_command_char = -1; |
284f4730 | 8613 | |
087feab3 RS |
8614 | #if 0 /* Currently, sit_for is called from read_char without turning |
8615 | off polling. And that can call set_waiting_for_input. | |
8616 | It seems to be harmless. */ | |
e6b01c14 JB |
8617 | #ifdef POLL_FOR_INPUT |
8618 | /* May be > 1 if in recursive minibuffer. */ | |
8619 | if (poll_suppress_count == 0) | |
8620 | abort (); | |
8621 | #endif | |
087feab3 | 8622 | #endif |
4c52b668 KH |
8623 | if (FRAMEP (internal_last_event_frame) |
8624 | && XFRAME (internal_last_event_frame) != selected_frame) | |
719191cf RS |
8625 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
8626 | Qnil, 0); | |
e6b01c14 | 8627 | |
284f4730 JB |
8628 | _longjmp (getcjmp, 1); |
8629 | } | |
8630 | \f | |
8631 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
8632 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
8633 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
8634 | nil means use CBREAK mode.\n\ | |
8635 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 8636 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
8637 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
8638 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
8639 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
8640 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
8641 | See also `current-input-mode'.") | |
284f4730 JB |
8642 | (interrupt, flow, meta, quit) |
8643 | Lisp_Object interrupt, flow, meta, quit; | |
8644 | { | |
8645 | if (!NILP (quit) | |
8c18cbfb | 8646 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
8647 | error ("set-input-mode: QUIT must be an ASCII character"); |
8648 | ||
8649 | #ifdef POLL_FOR_INPUT | |
8650 | stop_polling (); | |
8651 | #endif | |
284f4730 | 8652 | |
07de30b9 | 8653 | #ifndef DOS_NT |
2ee250ec | 8654 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 8655 | reset_sys_modes (); |
2ee250ec RS |
8656 | #endif |
8657 | ||
284f4730 JB |
8658 | #ifdef SIGIO |
8659 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 8660 | if (read_socket_hook) |
9a0f60bb KH |
8661 | { |
8662 | /* When using X, don't give the user a real choice, | |
8663 | because we haven't implemented the mechanisms to support it. */ | |
8664 | #ifdef NO_SOCK_SIGIO | |
8665 | interrupt_input = 0; | |
8666 | #else /* not NO_SOCK_SIGIO */ | |
8667 | interrupt_input = 1; | |
284f4730 | 8668 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
8669 | } |
8670 | else | |
284f4730 JB |
8671 | interrupt_input = !NILP (interrupt); |
8672 | #else /* not SIGIO */ | |
8673 | interrupt_input = 0; | |
8674 | #endif /* not SIGIO */ | |
9a0f60bb | 8675 | |
284f4730 JB |
8676 | /* Our VMS input only works by interrupts, as of now. */ |
8677 | #ifdef VMS | |
8678 | interrupt_input = 1; | |
8679 | #endif | |
9a0f60bb | 8680 | |
284f4730 | 8681 | flow_control = !NILP (flow); |
b04904fb RS |
8682 | if (NILP (meta)) |
8683 | meta_key = 0; | |
8684 | else if (EQ (meta, Qt)) | |
8685 | meta_key = 1; | |
8686 | else | |
8687 | meta_key = 2; | |
284f4730 JB |
8688 | if (!NILP (quit)) |
8689 | /* Don't let this value be out of range. */ | |
8690 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
8691 | ||
07de30b9 | 8692 | #ifndef DOS_NT |
284f4730 | 8693 | init_sys_modes (); |
2ee250ec | 8694 | #endif |
34f04431 RS |
8695 | |
8696 | #ifdef POLL_FOR_INPUT | |
8697 | poll_suppress_count = 1; | |
8698 | start_polling (); | |
8699 | #endif | |
284f4730 JB |
8700 | return Qnil; |
8701 | } | |
80645119 JB |
8702 | |
8703 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
8704 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
8705 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
8706 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
8707 | nil, Emacs is using CBREAK mode.\n\ | |
8708 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
8709 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
8710 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
8711 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
8712 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
8713 | all 8 bits as the character code.\n\ | |
80645119 JB |
8714 | QUIT is the character Emacs currently uses to quit.\n\ |
8715 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 8716 | `set-input-mode'.") |
80645119 JB |
8717 | () |
8718 | { | |
8719 | Lisp_Object val[4]; | |
8720 | ||
8721 | val[0] = interrupt_input ? Qt : Qnil; | |
8722 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 8723 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 8724 | XSETFASTINT (val[3], quit_char); |
80645119 | 8725 | |
bf673a7a | 8726 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
8727 | } |
8728 | ||
284f4730 | 8729 | \f |
6c6083a9 | 8730 | /* |
c5fdd383 | 8731 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
8732 | */ |
8733 | void | |
c5fdd383 KH |
8734 | init_kboard (kb) |
8735 | KBOARD *kb; | |
6c6083a9 | 8736 | { |
217258d5 | 8737 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 8738 | kb->Vlast_command = Qnil; |
75045dcb | 8739 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 8740 | kb->Vprefix_arg = Qnil; |
75045dcb | 8741 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
8742 | kb->kbd_queue = Qnil; |
8743 | kb->kbd_queue_has_data = 0; | |
8744 | kb->immediate_echo = 0; | |
8745 | kb->echoptr = kb->echobuf; | |
8746 | kb->echo_after_prompt = -1; | |
8747 | kb->kbd_macro_buffer = 0; | |
8748 | kb->kbd_macro_bufsize = 0; | |
8749 | kb->defining_kbd_macro = Qnil; | |
8750 | kb->Vlast_kbd_macro = Qnil; | |
8751 | kb->reference_count = 0; | |
7c97ffdc | 8752 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 8753 | kb->system_key_syms = Qnil; |
9ba47203 | 8754 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
8755 | } |
8756 | ||
8757 | /* | |
c5fdd383 | 8758 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 8759 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
8760 | * it a second time. |
8761 | */ | |
e50b8090 | 8762 | static void |
c5fdd383 KH |
8763 | wipe_kboard (kb) |
8764 | KBOARD *kb; | |
6c6083a9 | 8765 | { |
c5fdd383 KH |
8766 | if (kb->kbd_macro_buffer) |
8767 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
8768 | } |
8769 | ||
e50b8090 KH |
8770 | #ifdef MULTI_KBOARD |
8771 | void | |
8772 | delete_kboard (kb) | |
8773 | KBOARD *kb; | |
8774 | { | |
8775 | KBOARD **kbp; | |
8776 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
8777 | if (*kbp == NULL) | |
8778 | abort (); | |
8779 | *kbp = kb->next_kboard; | |
8780 | wipe_kboard (kb); | |
8781 | xfree (kb); | |
8782 | } | |
8783 | #endif | |
8784 | ||
dfcf069d | 8785 | void |
284f4730 JB |
8786 | init_keyboard () |
8787 | { | |
284f4730 JB |
8788 | /* This is correct before outermost invocation of the editor loop */ |
8789 | command_loop_level = -1; | |
8790 | immediate_quit = 0; | |
8791 | quit_char = Ctl ('g'); | |
24597608 | 8792 | Vunread_command_events = Qnil; |
86e5706b | 8793 | unread_command_char = -1; |
87dd9b9b | 8794 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 8795 | total_keys = 0; |
9deb415a | 8796 | recent_keys_index = 0; |
beecf6a1 KH |
8797 | kbd_fetch_ptr = kbd_buffer; |
8798 | kbd_store_ptr = kbd_buffer; | |
8799 | kbd_buffer_frame_or_window | |
8800 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 8801 | #ifdef HAVE_MOUSE |
a9d77f1f | 8802 | do_mouse_tracking = Qnil; |
2eb6bfbe | 8803 | #endif |
284f4730 JB |
8804 | input_pending = 0; |
8805 | ||
4c52b668 KH |
8806 | /* This means that command_loop_1 won't try to select anything the first |
8807 | time through. */ | |
8808 | internal_last_event_frame = Qnil; | |
8809 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 8810 | |
c5fdd383 | 8811 | #ifdef MULTI_KBOARD |
aaca43a1 | 8812 | current_kboard = initial_kboard; |
6c6083a9 | 8813 | #endif |
aaca43a1 | 8814 | wipe_kboard (current_kboard); |
c5fdd383 | 8815 | init_kboard (current_kboard); |
07d2b8de | 8816 | |
beecf6a1 KH |
8817 | if (initialized) |
8818 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
8819 | ||
8820 | kbd_buffer_frame_or_window | |
8821 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 8822 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
8823 | { |
8824 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 8825 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
8826 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
8827 | SIGQUIT and we can't tell which one it will give us. */ | |
8828 | signal (SIGQUIT, interrupt_signal); | |
8829 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 8830 | } |
284f4730 JB |
8831 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
8832 | #ifdef SIGIO | |
7a80a6f6 RS |
8833 | if (!noninteractive) |
8834 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 8835 | #endif /* SIGIO */ |
284f4730 JB |
8836 | |
8837 | /* Use interrupt input by default, if it works and noninterrupt input | |
8838 | has deficiencies. */ | |
8839 | ||
8840 | #ifdef INTERRUPT_INPUT | |
8841 | interrupt_input = 1; | |
8842 | #else | |
8843 | interrupt_input = 0; | |
8844 | #endif | |
8845 | ||
8846 | /* Our VMS input only works by interrupts, as of now. */ | |
8847 | #ifdef VMS | |
8848 | interrupt_input = 1; | |
8849 | #endif | |
8850 | ||
8851 | sigfree (); | |
8852 | dribble = 0; | |
8853 | ||
8854 | if (keyboard_init_hook) | |
8855 | (*keyboard_init_hook) (); | |
8856 | ||
8857 | #ifdef POLL_FOR_INPUT | |
8858 | poll_suppress_count = 1; | |
8859 | start_polling (); | |
8860 | #endif | |
8861 | } | |
8862 | ||
df0f2ba1 | 8863 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
8864 | event header symbols and put properties on them. */ |
8865 | struct event_head { | |
8866 | Lisp_Object *var; | |
8867 | char *name; | |
8868 | Lisp_Object *kind; | |
8869 | }; | |
8870 | ||
8871 | struct event_head head_table[] = { | |
7b4aedb9 | 8872 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 8873 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 8874 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 8875 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
8876 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
8877 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
8878 | }; |
8879 | ||
dfcf069d | 8880 | void |
284f4730 JB |
8881 | syms_of_keyboard () |
8882 | { | |
e8886a1d RS |
8883 | staticpro (&item_properties); |
8884 | item_properties = Qnil; | |
8885 | ||
d5eecefb RS |
8886 | staticpro (&real_this_command); |
8887 | real_this_command = Qnil; | |
8888 | ||
d925fb39 RS |
8889 | Qtimer_event_handler = intern ("timer-event-handler"); |
8890 | staticpro (&Qtimer_event_handler); | |
8891 | ||
2e894dab RS |
8892 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
8893 | staticpro (&Qdisabled_command_hook); | |
8894 | ||
284f4730 JB |
8895 | Qself_insert_command = intern ("self-insert-command"); |
8896 | staticpro (&Qself_insert_command); | |
8897 | ||
8898 | Qforward_char = intern ("forward-char"); | |
8899 | staticpro (&Qforward_char); | |
8900 | ||
8901 | Qbackward_char = intern ("backward-char"); | |
8902 | staticpro (&Qbackward_char); | |
8903 | ||
8904 | Qdisabled = intern ("disabled"); | |
8905 | staticpro (&Qdisabled); | |
8906 | ||
e58aa385 RS |
8907 | Qundefined = intern ("undefined"); |
8908 | staticpro (&Qundefined); | |
8909 | ||
86e5706b RS |
8910 | Qpre_command_hook = intern ("pre-command-hook"); |
8911 | staticpro (&Qpre_command_hook); | |
8912 | ||
8913 | Qpost_command_hook = intern ("post-command-hook"); | |
8914 | staticpro (&Qpost_command_hook); | |
8915 | ||
59aadc81 RS |
8916 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
8917 | staticpro (&Qpost_command_idle_hook); | |
8918 | ||
3ef14e46 RS |
8919 | Qdeferred_action_function = intern ("deferred-action-function"); |
8920 | staticpro (&Qdeferred_action_function); | |
8921 | ||
40932d1a RS |
8922 | Qcommand_hook_internal = intern ("command-hook-internal"); |
8923 | staticpro (&Qcommand_hook_internal); | |
8924 | ||
284f4730 JB |
8925 | Qfunction_key = intern ("function-key"); |
8926 | staticpro (&Qfunction_key); | |
13b5e56c | 8927 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 8928 | staticpro (&Qmouse_click); |
07de30b9 GV |
8929 | #ifdef WINDOWSNT |
8930 | Qmouse_wheel = intern ("mouse-wheel"); | |
8931 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
8932 | Qlanguage_change = intern ("language-change"); |
8933 | staticpro (&Qlanguage_change); | |
07de30b9 | 8934 | #endif |
a24dc617 RS |
8935 | Qdrag_n_drop = intern ("drag-n-drop"); |
8936 | staticpro (&Qdrag_n_drop); | |
284f4730 | 8937 | |
598a9fa7 JB |
8938 | Qmenu_enable = intern ("menu-enable"); |
8939 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
8940 | Qmenu_alias = intern ("menu-alias"); |
8941 | staticpro (&Qmenu_alias); | |
8942 | QCenable = intern (":enable"); | |
8943 | staticpro (&QCenable); | |
8944 | QCvisible = intern (":visible"); | |
8945 | staticpro (&QCvisible); | |
8946 | QCfilter = intern (":filter"); | |
8947 | staticpro (&QCfilter); | |
8948 | QCbutton = intern (":button"); | |
8949 | staticpro (&QCbutton); | |
74c1de23 RS |
8950 | QCkeys = intern (":keys"); |
8951 | staticpro (&QCkeys); | |
8952 | QCkey_sequence = intern (":key-sequence"); | |
8953 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
8954 | QCtoggle = intern (":toggle"); |
8955 | staticpro (&QCtoggle); | |
8956 | QCradio = intern (":radio"); | |
8957 | staticpro (&QCradio); | |
598a9fa7 | 8958 | |
284f4730 JB |
8959 | Qmode_line = intern ("mode-line"); |
8960 | staticpro (&Qmode_line); | |
e5d77022 JB |
8961 | Qvertical_line = intern ("vertical-line"); |
8962 | staticpro (&Qvertical_line); | |
3c370943 JB |
8963 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
8964 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
8965 | Qmenu_bar = intern ("menu-bar"); |
8966 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
8967 | |
8968 | Qabove_handle = intern ("above-handle"); | |
8969 | staticpro (&Qabove_handle); | |
8970 | Qhandle = intern ("handle"); | |
8971 | staticpro (&Qhandle); | |
8972 | Qbelow_handle = intern ("below-handle"); | |
8973 | staticpro (&Qbelow_handle); | |
db08707d RS |
8974 | Qup = intern ("up"); |
8975 | staticpro (&Qup); | |
8976 | Qdown = intern ("down"); | |
8977 | staticpro (&Qdown); | |
284f4730 | 8978 | |
cd21b839 | 8979 | Qevent_kind = intern ("event-kind"); |
284f4730 | 8980 | staticpro (&Qevent_kind); |
88cb0656 JB |
8981 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
8982 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
8983 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
8984 | staticpro (&Qevent_symbol_element_mask); | |
8985 | Qmodifier_cache = intern ("modifier-cache"); | |
8986 | staticpro (&Qmodifier_cache); | |
284f4730 | 8987 | |
48e416d4 RS |
8988 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
8989 | staticpro (&Qrecompute_lucid_menubar); | |
8990 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
8991 | staticpro (&Qactivate_menubar_hook); | |
8992 | ||
f4eef8b4 RS |
8993 | Qpolling_period = intern ("polling-period"); |
8994 | staticpro (&Qpolling_period); | |
8995 | ||
7d18f9ae RS |
8996 | Qinput_method_function = intern ("input-method-function"); |
8997 | staticpro (&Qinput_method_function); | |
8998 | ||
d5eecefb RS |
8999 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
9000 | staticpro (&Qinput_method_exit_on_first_char); | |
9001 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
9002 | staticpro (&Qinput_method_use_echo_area); | |
9003 | ||
9004 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
9005 | Fset (Qinput_method_use_echo_area, Qnil); | |
9006 | ||
284f4730 JB |
9007 | { |
9008 | struct event_head *p; | |
9009 | ||
9010 | for (p = head_table; | |
9011 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
9012 | p++) | |
9013 | { | |
9014 | *p->var = intern (p->name); | |
9015 | staticpro (p->var); | |
9016 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 9017 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
9018 | } |
9019 | } | |
9020 | ||
7b4aedb9 JB |
9021 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
9022 | staticpro (&button_down_location); | |
88cb0656 JB |
9023 | |
9024 | { | |
9025 | int i; | |
9026 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
9027 | ||
9028 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
9029 | for (i = 0; i < len; i++) | |
86e5706b RS |
9030 | if (modifier_names[i]) |
9031 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
9032 | staticpro (&modifier_symbols); |
9033 | } | |
9034 | ||
9deb415a JB |
9035 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
9036 | staticpro (&recent_keys); | |
9037 | ||
6569cc8d | 9038 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 9039 | staticpro (&this_command_keys); |
6569cc8d | 9040 | |
7d18f9ae RS |
9041 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
9042 | staticpro (&raw_keybuf); | |
9043 | ||
03b4122a BF |
9044 | Qextended_command_history = intern ("extended-command-history"); |
9045 | Fset (Qextended_command_history, Qnil); | |
9046 | staticpro (&Qextended_command_history); | |
9047 | ||
beecf6a1 KH |
9048 | kbd_buffer_frame_or_window |
9049 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
9050 | staticpro (&kbd_buffer_frame_or_window); | |
9051 | ||
24597608 RS |
9052 | accent_key_syms = Qnil; |
9053 | staticpro (&accent_key_syms); | |
9054 | ||
284f4730 JB |
9055 | func_key_syms = Qnil; |
9056 | staticpro (&func_key_syms); | |
9057 | ||
9058 | mouse_syms = Qnil; | |
9059 | staticpro (&mouse_syms); | |
9060 | ||
07de30b9 GV |
9061 | #ifdef WINDOWSNT |
9062 | mouse_wheel_syms = Qnil; | |
9063 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
9064 | |
9065 | drag_n_drop_syms = Qnil; | |
9066 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
9067 | #endif |
9068 | ||
cd21b839 JB |
9069 | unread_switch_frame = Qnil; |
9070 | staticpro (&unread_switch_frame); | |
9071 | ||
fe412364 EN |
9072 | internal_last_event_frame = Qnil; |
9073 | staticpro (&internal_last_event_frame); | |
9074 | ||
9075 | read_key_sequence_cmd = Qnil; | |
9076 | staticpro (&read_key_sequence_cmd); | |
9077 | ||
a1706c30 | 9078 | defsubr (&Sevent_convert_list); |
284f4730 | 9079 | defsubr (&Sread_key_sequence); |
e39da3d7 | 9080 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 9081 | defsubr (&Srecursive_edit); |
2eb6bfbe | 9082 | #ifdef HAVE_MOUSE |
284f4730 | 9083 | defsubr (&Strack_mouse); |
2eb6bfbe | 9084 | #endif |
284f4730 JB |
9085 | defsubr (&Sinput_pending_p); |
9086 | defsubr (&Scommand_execute); | |
9087 | defsubr (&Srecent_keys); | |
9088 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 9089 | defsubr (&Sthis_command_keys_vector); |
6321824f | 9090 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 9091 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 9092 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 9093 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
9094 | defsubr (&Ssuspend_emacs); |
9095 | defsubr (&Sabort_recursive_edit); | |
9096 | defsubr (&Sexit_recursive_edit); | |
9097 | defsubr (&Srecursion_depth); | |
9098 | defsubr (&Stop_level); | |
9099 | defsubr (&Sdiscard_input); | |
9100 | defsubr (&Sopen_dribble_file); | |
9101 | defsubr (&Sset_input_mode); | |
80645119 | 9102 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
9103 | defsubr (&Sexecute_extended_command); |
9104 | ||
284f4730 | 9105 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
9106 | "Last input event that was part of a command."); |
9107 | ||
186cf719 | 9108 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 9109 | "Last input event that was part of a command."); |
284f4730 | 9110 | |
7d6de002 | 9111 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 9112 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
9113 | Mouse menus give back keys that don't look like mouse events;\n\ |
9114 | this variable holds the actual mouse event that led to the menu,\n\ | |
9115 | so that you can determine whether the command was run by mouse or not."); | |
9116 | ||
284f4730 | 9117 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
9118 | "Last input event."); |
9119 | ||
186cf719 | 9120 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 9121 | "Last input event."); |
284f4730 | 9122 | |
24597608 | 9123 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
9124 | "List of events to be read as the command input.\n\ |
9125 | These events are processed first, before actual keyboard input."); | |
9126 | Vunread_command_events = Qnil; | |
284f4730 | 9127 | |
86e5706b RS |
9128 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
9129 | "If not -1, an object to be read as next command input event."); | |
9130 | ||
7d18f9ae RS |
9131 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
9132 | "List of events to be processed as input by input methods.\n\ | |
9133 | These events are processed after `unread-command-events', but\n\ | |
9134 | before actual keyboard input."); | |
9135 | Vunread_post_input_method_events = Qnil; | |
9136 | ||
9137 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
9138 | "List of events to be processed as input by input methods.\n\ | |
9139 | These events are processed after `unread-command-events', but\n\ | |
9140 | before actual keyboard input."); | |
9141 | Vunread_input_method_events = Qnil; | |
9142 | ||
284f4730 | 9143 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
9144 | "Meta-prefix character code.\n\ |
9145 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 9146 | XSETINT (meta_prefix_char, 033); |
284f4730 | 9147 | |
6c7178b9 | 9148 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
9149 | "The last command executed.\n\ |
9150 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
9151 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
9152 | command.\n\ | |
18f29056 RS |
9153 | \n\ |
9154 | The value `mode-exit' is special; it means that the previous command\n\ | |
9155 | read an event that told it to exit, and it did so and unread that event.\n\ | |
9156 | In other words, the present command is the event that made the previous\n\ | |
9157 | command exit.\n\ | |
9158 | \n\ | |
9159 | The value `kill-region' is special; it means that the previous command\n\ | |
9160 | was a kill command."); | |
284f4730 | 9161 | |
75045dcb RS |
9162 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
9163 | "Same as `last-command', but never altered by Lisp code."); | |
9164 | ||
d5eecefb | 9165 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
9166 | "The command now being executed.\n\ |
9167 | The command can set this variable; whatever is put here\n\ | |
9168 | will be in `last-command' during the following command."); | |
d5eecefb | 9169 | Vthis_command = Qnil; |
284f4730 JB |
9170 | |
9171 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
9172 | "*Number of keyboard input characters between auto-saves.\n\ | |
9173 | Zero means disable autosaving due to number of characters typed."); | |
9174 | auto_save_interval = 300; | |
9175 | ||
9176 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
9177 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
9178 | Zero or nil means disable auto-saving due to idleness.\n\ |
9179 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 9180 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 9181 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
9182 | |
9183 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
9184 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
9185 | echo_keystrokes = 1; | |
9186 | ||
9187 | DEFVAR_INT ("polling-period", &polling_period, | |
9188 | "*Interval between polling for input during Lisp execution.\n\ | |
9189 | The reason for polling is to make C-g work to stop a running program.\n\ | |
9190 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
9191 | Polling is automatically disabled in all other cases."); | |
9192 | polling_period = 2; | |
df0f2ba1 | 9193 | |
564dc952 | 9194 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 9195 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
9196 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
9197 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 9198 | by position only."); |
aab06933 | 9199 | Vdouble_click_time = make_number (500); |
fbcd35bd | 9200 | |
03361bcc RS |
9201 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
9202 | "*Non-nil means inhibit local map menu bar menus."); | |
9203 | inhibit_local_menu_bar_menus = 0; | |
9204 | ||
284f4730 | 9205 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 9206 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
9207 | This includes key sequences read from keyboard macros.\n\ |
9208 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
9209 | num_input_keys = 0; |
9210 | ||
c43b1734 RS |
9211 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
9212 | "Number of input events read from the keyboard so far.\n\ | |
9213 | This does not include events generated by keyboard macros."); | |
9214 | num_nonmacro_input_events = 0; | |
fa90970d | 9215 | |
4c52b668 KH |
9216 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
9217 | "The frame in which the most recently read event occurred.\n\ | |
9218 | If the last event came from a keyboard macro, this is set to `macro'."); | |
9219 | Vlast_event_frame = Qnil; | |
9220 | ||
fa90970d RS |
9221 | /* This variable is set up in sysdep.c. */ |
9222 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
9223 | "The ERASE character as set by the user with stty."); | |
9224 | ||
7e85b935 | 9225 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
9226 | "Character to recognize as meaning Help.\n\ |
9227 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
9228 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 9229 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 9230 | |
ecb7cb34 KH |
9231 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
9232 | "List of input events to recognize as meaning Help.\n\ | |
9233 | These work just like the value of `help-char' (see that)."); | |
9234 | Vhelp_event_list = Qnil; | |
9235 | ||
284f4730 | 9236 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 9237 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
9238 | If the form returns a string, that string is displayed.\n\ |
9239 | If `help-form' is nil, the help char is not recognized."); | |
9240 | Vhelp_form = Qnil; | |
9241 | ||
7e85b935 RS |
9242 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
9243 | "Command to run when `help-char' character follows a prefix key.\n\ | |
9244 | This command is used only when there is no actual binding\n\ | |
9245 | for that character after that prefix key."); | |
9246 | Vprefix_help_command = Qnil; | |
9247 | ||
284f4730 JB |
9248 | DEFVAR_LISP ("top-level", &Vtop_level, |
9249 | "Form to evaluate when Emacs starts up.\n\ | |
9250 | Useful to set before you dump a modified Emacs."); | |
9251 | Vtop_level = Qnil; | |
9252 | ||
9253 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 9254 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 9255 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
9256 | The value may be a string, a vector, or a char-table.\n\ |
9257 | If it is a string or vector of length N,\n\ | |
9258 | character codes N and up are untranslated.\n\ | |
9259 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
9260 | Vkeyboard_translate_table = Qnil; |
9261 | ||
8026024c | 9262 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
9263 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
9264 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
9265 | cannot_suspend = 0; |
9266 | ||
284f4730 | 9267 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 9268 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 9269 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
9270 | for elements that have prompt strings.\n\ |
9271 | The menu is displayed on the screen\n\ | |
9272 | if X menus were enabled at configuration\n\ | |
9273 | time and the previous event was a mouse click prefix key.\n\ | |
9274 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
9275 | menu_prompting = 1; |
9276 | ||
9277 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
9278 | "Character to see next line of menu prompt.\n\ | |
9279 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 9280 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
9281 | |
9282 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
9283 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
9284 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
9285 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 9286 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
9287 | all input characters will have the control modifier applied to them.\n\ |
9288 | \n\ | |
9d9f56dd | 9289 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 9290 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 9291 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 9292 | cancels any modification."); |
9fa4395d | 9293 | extra_keyboard_modifiers = 0; |
86e5706b RS |
9294 | |
9295 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
9296 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
9297 | The command loop sets this to nil before each command,\n\ | |
9298 | and tests the value when the command returns.\n\ | |
9299 | Buffer modification stores t in this variable."); | |
9300 | Vdeactivate_mark = Qnil; | |
9301 | ||
b0f2a7bf KH |
9302 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
9303 | "Temporary storage of pre-command-hook or post-command-hook."); | |
9304 | Vcommand_hook_internal = Qnil; | |
9305 | ||
86e5706b | 9306 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 9307 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
9308 | If an unhandled error happens in running this hook,\n\ |
9309 | the hook value is set to nil, since otherwise the error\n\ | |
9310 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
9311 | Vpre_command_hook = Qnil; |
9312 | ||
9313 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 9314 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
9315 | If an unhandled error happens in running this hook,\n\ |
9316 | the hook value is set to nil, since otherwise the error\n\ | |
9317 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 9318 | Vpost_command_hook = Qnil; |
48e416d4 | 9319 | |
59aadc81 RS |
9320 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
9321 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
9322 | Errors running the hook are caught and ignored.\n\ |
9323 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
9324 | Vpost_command_idle_hook = Qnil; |
9325 | ||
9326 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 9327 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
9328 | This is measured in microseconds."); |
9329 | post_command_idle_delay = 100000; | |
9330 | ||
cdb9d665 RS |
9331 | #if 0 |
9332 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
9333 | "Normal hook run when clearing the echo area."); | |
9334 | #endif | |
9335 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
9336 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
9337 | ||
48e416d4 RS |
9338 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
9339 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
9340 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 9341 | |
9f9c0e27 RS |
9342 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
9343 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 9344 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 9345 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 9346 | |
217258d5 KH |
9347 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
9348 | Voverriding_terminal_local_map, | |
779b34df | 9349 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 9350 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
9351 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
9352 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
9353 | set up a different keymap for reading the next command."); | |
217258d5 | 9354 | |
9dd3131c RS |
9355 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
9356 | "Keymap that overrides all other local keymaps.\n\ | |
9357 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
9358 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
9359 | Voverriding_local_map = Qnil; | |
9360 | ||
d0a49716 RS |
9361 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
9362 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
9363 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
9364 | and the minor mode maps regardless of `overriding-local-map'."); | |
9365 | Voverriding_local_map_menu_flag = Qnil; | |
9366 | ||
7f07d5ca RS |
9367 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
9368 | "Keymap defining bindings for special events to execute at low level."); | |
9369 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
9370 | ||
71edead1 | 9371 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 9372 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 9373 | |
7c97ffdc | 9374 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 9375 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 9376 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 9377 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 9378 | and SYMBOL is its name."); |
8a792f3a RS |
9379 | |
9380 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
9381 | "List of deferred actions to be performed at a later time.\n\ | |
9382 | The precise format isn't relevant here; we just check whether it is nil."); | |
9383 | Vdeferred_action_list = Qnil; | |
9384 | ||
9385 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
9386 | "Function to call to handle deferred actions, after each command.\n\ | |
9387 | This function is called with no arguments after each command\n\ | |
9388 | whenever `deferred-action-list' is non-nil."); | |
9389 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
9390 | |
9391 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 9392 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
9393 | The value can be a length of time to show the message for.\n\ |
9394 | If the value is non-nil and not a number, we wait 2 seconds."); | |
9395 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 9396 | |
c04cbc3b | 9397 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 9398 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 9399 | Vtimer_list = Qnil; |
d9d4c147 KH |
9400 | |
9401 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
9402 | "List of active idle-time timers in order of increasing time"); | |
9403 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
9404 | |
9405 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
9406 | "If non-nil, the function that implements the current input method.\n\ | |
9407 | It's called with one argument, a printing character that was just read.\n\ | |
9408 | \(That means a character with code 040...0176.)\n\ | |
9409 | Typically this function uses `read-event' to read additional events.\n\ | |
9410 | When it does so, it should first bind `input-method-function' to nil\n\ | |
9411 | so it will not be called recursively.\n\ | |
9412 | \n\ | |
9413 | The function should return a list of zero or more events\n\ | |
9414 | to be used as input. If it wants to put back some events\n\ | |
9415 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
9416 | it can add them to the beginning of `unread-command-events'.\n\ |
9417 | \n\ | |
9418 | The input method function can find in `input-method-previous-method'\n\ | |
9419 | the previous echo area message.\n\ | |
9420 | \n\ | |
9421 | The input method function should refer to the variables\n\ | |
9422 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
9423 | for guidance on what to do."); | |
7d18f9ae | 9424 | Vinput_method_function = Qnil; |
d5eecefb RS |
9425 | |
9426 | DEFVAR_LISP ("input-method-previous-message", | |
9427 | &Vinput_method_previous_message, | |
a8b13665 | 9428 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
9429 | This variable exists because `read-event' clears the echo area\n\ |
9430 | before running the input method. It is nil if there was no message."); | |
9431 | Vinput_method_previous_message = Qnil; | |
284f4730 JB |
9432 | } |
9433 | ||
dfcf069d | 9434 | void |
284f4730 JB |
9435 | keys_of_keyboard () |
9436 | { | |
9437 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
9438 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
9439 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
9440 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
9441 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
9442 | |
9443 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
9444 | "handle-delete-frame"); | |
9445 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
9446 | "ignore-event"); | |
9447 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
9448 | "ignore-event"); | |
284f4730 | 9449 | } |