Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
0bbdffbd | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99,2000,01,02,03 |
39aab679 | 3 | Free Software Foundation, Inc. |
284f4730 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 9 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
284f4730 | 21 | |
18160b98 | 22 | #include <config.h> |
68c45bf0 | 23 | #include <signal.h> |
284f4730 | 24 | #include <stdio.h> |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
27 | #include "lisp.h" | |
28 | #include "termhooks.h" | |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.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" |
e39da3d7 | 38 | #include "syntax.h" |
497ba7a1 | 39 | #include "intervals.h" |
bdb7aa47 | 40 | #include "keymap.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
8a9f5d3c GM |
43 | #include "systime.h" |
44 | #include "atimer.h" | |
284f4730 JB |
45 | #include <setjmp.h> |
46 | #include <errno.h> | |
47 | ||
80e4aa30 RS |
48 | #ifdef MSDOS |
49 | #include "msdos.h" | |
50 | #include <time.h> | |
51 | #else /* not MSDOS */ | |
284f4730 JB |
52 | #ifndef VMS |
53 | #include <sys/ioctl.h> | |
284f4730 | 54 | #endif |
80e4aa30 | 55 | #endif /* not MSDOS */ |
284f4730 | 56 | |
52baf19e | 57 | #include "syssignal.h" |
6ef5b54f | 58 | #include "systty.h" |
52baf19e | 59 | |
03cee6ae GM |
60 | #include <sys/types.h> |
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
64 | ||
c5e3b6c5 RS |
65 | /* This is to get the definitions of the XK_ symbols. */ |
66 | #ifdef HAVE_X_WINDOWS | |
67 | #include "xterm.h" | |
68 | #endif | |
69 | ||
e98a93eb GV |
70 | #ifdef HAVE_NTGUI |
71 | #include "w32term.h" | |
72 | #endif /* HAVE_NTGUI */ | |
73 | ||
e0f712ba | 74 | #ifdef MAC_OS |
1a578e9b AC |
75 | #include "macterm.h" |
76 | #endif | |
77 | ||
02639609 | 78 | #ifndef USE_CRT_DLL |
52baf19e | 79 | extern int errno; |
02639609 | 80 | #endif |
52baf19e | 81 | |
9ac0d9e0 JB |
82 | /* Variables for blockinput.h: */ |
83 | ||
84 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 85 | int interrupt_input_blocked; |
9ac0d9e0 JB |
86 | |
87 | /* Nonzero means an input interrupt has arrived | |
88 | during the current critical section. */ | |
63927c41 | 89 | int interrupt_input_pending; |
9ac0d9e0 JB |
90 | |
91 | ||
437f6112 RS |
92 | /* File descriptor to use for input. */ |
93 | extern int input_fd; | |
284f4730 | 94 | |
e98a93eb | 95 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 96 | /* Make all keyboard buffers much bigger when using X windows. */ |
e0f712ba AC |
97 | #ifdef MAC_OS8 |
98 | /* But not too big (local data > 32K error) if on Mac OS Classic. */ | |
f019cded RS |
99 | #define KBD_BUFFER_SIZE 512 |
100 | #else | |
284f4730 | 101 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 102 | #endif |
284f4730 | 103 | #else /* No X-windows, character input */ |
de11c1ea | 104 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
105 | #endif /* No X-windows */ |
106 | ||
222d557c GM |
107 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
108 | ||
284f4730 JB |
109 | /* Following definition copied from eval.c */ |
110 | ||
111 | struct backtrace | |
112 | { | |
113 | struct backtrace *next; | |
114 | Lisp_Object *function; | |
115 | Lisp_Object *args; /* Points to vector of args. */ | |
116 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
117 | args points to slot holding list of | |
118 | unevalled args */ | |
119 | char evalargs; | |
120 | }; | |
121 | ||
c5fdd383 KH |
122 | #ifdef MULTI_KBOARD |
123 | KBOARD *initial_kboard; | |
124 | KBOARD *current_kboard; | |
125 | KBOARD *all_kboards; | |
1e8bd3da | 126 | int single_kboard; |
6c6083a9 | 127 | #else |
c5fdd383 | 128 | KBOARD the_only_kboard; |
6c6083a9 | 129 | #endif |
612b78ef | 130 | |
284f4730 JB |
131 | /* Non-nil disable property on a command means |
132 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 133 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
134 | |
135 | #define NUM_RECENT_KEYS (100) | |
136 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
137 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 138 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 139 | |
6569cc8d JB |
140 | /* Vector holding the key sequence that invoked the current command. |
141 | It is reused for each command, and it may be longer than the current | |
142 | sequence; this_command_key_count indicates how many elements | |
143 | actually mean something. | |
144 | It's easier to staticpro a single Lisp_Object than an array. */ | |
145 | Lisp_Object this_command_keys; | |
146 | int this_command_key_count; | |
284f4730 | 147 | |
63020c46 RS |
148 | /* 1 after calling Freset_this_command_lengths. |
149 | Usually it is 0. */ | |
150 | int this_command_key_count_reset; | |
151 | ||
7d18f9ae RS |
152 | /* This vector is used as a buffer to record the events that were actually read |
153 | by read_key_sequence. */ | |
154 | Lisp_Object raw_keybuf; | |
155 | int raw_keybuf_count; | |
156 | ||
157 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 158 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
7d18f9ae RS |
159 | { \ |
160 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
161 | Lisp_Object new; \ | |
162 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
163 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
164 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
165 | raw_keybuf = new; \ | |
166 | } | |
167 | ||
6321824f RS |
168 | /* Number of elements of this_command_keys |
169 | that precede this key sequence. */ | |
170 | int this_single_command_key_start; | |
171 | ||
71918b75 RS |
172 | /* Record values of this_command_key_count and echo_length () |
173 | before this command was read. */ | |
174 | static int before_command_key_count; | |
175 | static int before_command_echo_length; | |
71918b75 | 176 | |
284f4730 JB |
177 | extern int minbuf_level; |
178 | ||
a59b172a RS |
179 | extern int message_enable_multibyte; |
180 | ||
284f4730 JB |
181 | extern struct backtrace *backtrace_list; |
182 | ||
7ee32cda GM |
183 | /* If non-nil, the function that implements the display of help. |
184 | It's called with one argument, the help string to display. */ | |
185 | ||
186 | Lisp_Object Vshow_help_function; | |
187 | ||
f0c1cc56 GM |
188 | /* If a string, the message displayed before displaying a help-echo |
189 | in the echo area. */ | |
190 | ||
191 | Lisp_Object Vpre_help_message; | |
192 | ||
284f4730 | 193 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 194 | |
284f4730 JB |
195 | static int menu_prompting; |
196 | ||
197 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 198 | |
284f4730 JB |
199 | static Lisp_Object menu_prompt_more_char; |
200 | ||
201 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 202 | |
284f4730 JB |
203 | static jmp_buf getcjmp; |
204 | ||
205 | /* True while doing kbd input. */ | |
206 | int waiting_for_input; | |
207 | ||
208 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 209 | |
c843d6c6 | 210 | int echoing; |
284f4730 | 211 | |
985f9f66 GM |
212 | /* Non-null means we can start echoing at the next input pause even |
213 | though there is something in the echo area. */ | |
214 | ||
215 | static struct kboard *ok_to_echo_at_next_pause; | |
216 | ||
59a84f8e GM |
217 | /* The kboard last echoing, or null for none. Reset to 0 in |
218 | cancel_echoing. If non-null, and a current echo area message | |
219 | exists, and echo_message_buffer is eq to the current message | |
220 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 221 | |
f49aedfd | 222 | struct kboard *echo_kboard; |
1fc93d49 | 223 | |
59a84f8e GM |
224 | /* The buffer used for echoing. Set in echo_now, reset in |
225 | cancel_echoing. */ | |
226 | ||
c843d6c6 | 227 | Lisp_Object echo_message_buffer; |
59a84f8e | 228 | |
03361bcc RS |
229 | /* Nonzero means disregard local maps for the menu bar. */ |
230 | static int inhibit_local_menu_bar_menus; | |
231 | ||
80e4aa30 | 232 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
233 | int immediate_quit; |
234 | ||
fa90970d RS |
235 | /* The user's ERASE setting. */ |
236 | Lisp_Object Vtty_erase_char; | |
237 | ||
284f4730 | 238 | /* Character to recognize as the help char. */ |
7e85b935 | 239 | Lisp_Object Vhelp_char; |
284f4730 | 240 | |
ecb7cb34 KH |
241 | /* List of other event types to recognize as meaning "help". */ |
242 | Lisp_Object Vhelp_event_list; | |
243 | ||
284f4730 JB |
244 | /* Form to execute when help char is typed. */ |
245 | Lisp_Object Vhelp_form; | |
246 | ||
7e85b935 RS |
247 | /* Command to run when the help character follows a prefix key. */ |
248 | Lisp_Object Vprefix_help_command; | |
249 | ||
9f9c0e27 RS |
250 | /* List of items that should move to the end of the menu bar. */ |
251 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 252 | |
6526ab49 RS |
253 | /* Non-nil means show the equivalent key-binding for |
254 | any M-x command that has one. | |
255 | The value can be a length of time to show the message for. | |
256 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
257 | Lisp_Object Vsuggest_key_bindings; | |
258 | ||
00392ce6 MB |
259 | /* How long to display an echo-area message when the minibuffer is active. |
260 | If the value is not a number, such messages don't time out. */ | |
261 | Lisp_Object Vminibuffer_message_timeout; | |
262 | ||
284f4730 JB |
263 | /* Character that causes a quit. Normally C-g. |
264 | ||
265 | If we are running on an ordinary terminal, this must be an ordinary | |
266 | ASCII char, since we want to make it our interrupt character. | |
267 | ||
268 | If we are not running on an ordinary terminal, it still needs to be | |
269 | an ordinary ASCII char. This character needs to be recognized in | |
270 | the input interrupt handler. At this point, the keystroke is | |
271 | represented as a struct input_event, while the desired quit | |
272 | character is specified as a lispy event. The mapping from struct | |
273 | input_events to lispy events cannot run in an interrupt handler, | |
274 | and the reverse mapping is difficult for anything but ASCII | |
275 | keystrokes. | |
276 | ||
277 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
278 | ASCII character. */ | |
279 | int quit_char; | |
280 | ||
281 | extern Lisp_Object current_global_map; | |
282 | extern int minibuf_level; | |
283 | ||
9dd3131c RS |
284 | /* If non-nil, this is a map that overrides all other local maps. */ |
285 | Lisp_Object Voverriding_local_map; | |
286 | ||
d0a49716 RS |
287 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
288 | Lisp_Object Voverriding_local_map_menu_flag; | |
289 | ||
7f07d5ca RS |
290 | /* Keymap that defines special misc events that should |
291 | be processed immediately at a low level. */ | |
292 | Lisp_Object Vspecial_event_map; | |
293 | ||
284f4730 JB |
294 | /* Current depth in recursive edits. */ |
295 | int command_loop_level; | |
296 | ||
297 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 298 | EMACS_INT num_input_keys; |
284f4730 JB |
299 | |
300 | /* Last input character read as a command. */ | |
301 | Lisp_Object last_command_char; | |
302 | ||
7d6de002 RS |
303 | /* Last input character read as a command, not counting menus |
304 | reached by the mouse. */ | |
305 | Lisp_Object last_nonmenu_event; | |
306 | ||
284f4730 JB |
307 | /* Last input character read for any purpose. */ |
308 | Lisp_Object last_input_char; | |
309 | ||
dbc4e1c1 | 310 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 311 | Lisp_Object Vunread_command_events; |
284f4730 | 312 | |
7d18f9ae RS |
313 | /* If not Qnil, a list of objects to be read as subsequent command input |
314 | including input method processing. */ | |
315 | Lisp_Object Vunread_input_method_events; | |
316 | ||
317 | /* If not Qnil, a list of objects to be read as subsequent command input | |
318 | but NOT including input method processing. */ | |
319 | Lisp_Object Vunread_post_input_method_events; | |
320 | ||
86e5706b | 321 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 322 | EMACS_INT unread_command_char; |
86e5706b | 323 | |
cd21b839 JB |
324 | /* If not Qnil, this is a switch-frame event which we decided to put |
325 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 326 | next command input, after any unread_command_events. |
8f805655 JB |
327 | |
328 | read_key_sequence uses this to delay switch-frame events until the | |
329 | end of the key sequence; Fread_char uses it to put off switch-frame | |
330 | events until a non-ASCII event is acceptable as input. */ | |
331 | Lisp_Object unread_switch_frame; | |
cd21b839 | 332 | |
9fa4395d | 333 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 334 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 335 | |
284f4730 JB |
336 | /* Char to use as prefix when a meta character is typed in. |
337 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
338 | ||
339 | Lisp_Object meta_prefix_char; | |
340 | ||
341 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
342 | static int last_non_minibuf_size; | |
343 | ||
06ef7355 | 344 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
345 | static Lisp_Object Vauto_save_timeout; |
346 | ||
347 | /* Total number of times read_char has returned. */ | |
4abfba1f | 348 | int num_input_events; |
284f4730 | 349 | |
51172b6d | 350 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 351 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 352 | |
284f4730 JB |
353 | /* Auto-save automatically when this many characters have been typed |
354 | since the last time. */ | |
355 | ||
31ade731 | 356 | static EMACS_INT auto_save_interval; |
284f4730 | 357 | |
c43b1734 | 358 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
359 | |
360 | int last_auto_save; | |
361 | ||
284f4730 | 362 | /* The command being executed by the command loop. |
6c7178b9 KH |
363 | Commands may set this, and the value set will be copied into |
364 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
365 | Lisp_Object Vthis_command; |
366 | ||
367 | /* This is like Vthis_command, except that commands never set it. */ | |
368 | Lisp_Object real_this_command; | |
284f4730 | 369 | |
8b9940e6 KS |
370 | /* If the lookup of the command returns a binding, the original |
371 | command is stored in this-original-command. It is nil otherwise. */ | |
372 | Lisp_Object Vthis_original_command; | |
373 | ||
b453f72e KH |
374 | /* The value of point when the last command was executed. */ |
375 | int last_point_position; | |
376 | ||
047688cb RS |
377 | /* The buffer that was current when the last command was started. */ |
378 | Lisp_Object last_point_position_buffer; | |
379 | ||
4c52b668 KH |
380 | /* The frame in which the last input event occurred, or Qmacro if the |
381 | last event came from a macro. We use this to determine when to | |
382 | generate switch-frame events. This may be cleared by functions | |
383 | like Fselect_frame, to make sure that a switch-frame event is | |
384 | generated by the next character. */ | |
385 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
386 | |
387 | /* A user-visible version of the above, intended to allow users to | |
388 | figure out where the last event came from, if the event doesn't | |
389 | carry that information itself (i.e. if it was a character). */ | |
390 | Lisp_Object Vlast_event_frame; | |
391 | ||
1113d9db JB |
392 | /* The timestamp of the last input event we received from the X server. |
393 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
394 | unsigned long last_event_timestamp; |
395 | ||
396 | Lisp_Object Qself_insert_command; | |
397 | Lisp_Object Qforward_char; | |
398 | Lisp_Object Qbackward_char; | |
e58aa385 | 399 | Lisp_Object Qundefined; |
d925fb39 | 400 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
401 | |
402 | /* read_key_sequence stores here the command definition of the | |
403 | key sequence that it reads. */ | |
404 | Lisp_Object read_key_sequence_cmd; | |
405 | ||
39aab679 DL |
406 | /* Echo unfinished commands after this many seconds of pause. */ |
407 | Lisp_Object Vecho_keystrokes; | |
408 | ||
284f4730 JB |
409 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
410 | Lisp_Object Vtop_level; | |
411 | ||
a0acc6c7 | 412 | /* User-supplied table to translate input characters. */ |
284f4730 JB |
413 | Lisp_Object Vkeyboard_translate_table; |
414 | ||
415 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
416 | extern Lisp_Object Vfunction_key_map; | |
417 | ||
e0301c07 RS |
418 | /* Another keymap that maps key sequences into key sequences. |
419 | This one takes precedence over ordinary definitions. */ | |
420 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 421 | |
7d18f9ae RS |
422 | /* If non-nil, this implements the current input method. */ |
423 | Lisp_Object Vinput_method_function; | |
424 | Lisp_Object Qinput_method_function; | |
425 | ||
d5eecefb RS |
426 | /* When we call Vinput_method_function, |
427 | this holds the echo area message that was just erased. */ | |
428 | Lisp_Object Vinput_method_previous_message; | |
429 | ||
86e5706b RS |
430 | /* Non-nil means deactivate the mark at end of this command. */ |
431 | Lisp_Object Vdeactivate_mark; | |
432 | ||
48e416d4 RS |
433 | /* Menu bar specified in Lucid Emacs fashion. */ |
434 | ||
435 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
436 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
437 | ||
cf24f894 | 438 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 439 | |
86e5706b | 440 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
441 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
442 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 443 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
444 | /* Hook run after a command if there's no more input soon. */ |
445 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
446 | ||
447 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
31ade731 | 448 | EMACS_INT post_command_idle_delay; |
86e5706b | 449 | |
8a792f3a RS |
450 | /* List of deferred actions to be performed at a later time. |
451 | The precise format isn't relevant here; we just check whether it is nil. */ | |
452 | Lisp_Object Vdeferred_action_list; | |
453 | ||
454 | /* Function to call to handle deferred actions, when there are any. */ | |
455 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 456 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 457 | |
d5eecefb RS |
458 | Lisp_Object Qinput_method_exit_on_first_char; |
459 | Lisp_Object Qinput_method_use_echo_area; | |
460 | ||
284f4730 JB |
461 | /* File in which we write all commands we read. */ |
462 | FILE *dribble; | |
463 | ||
464 | /* Nonzero if input is available. */ | |
465 | int input_pending; | |
466 | ||
b04904fb RS |
467 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
468 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
469 | ||
284f4730 JB |
470 | int meta_key; |
471 | ||
3626fb1a GM |
472 | /* Non-zero means force key bindings update in parse_menu_item. */ |
473 | ||
474 | int update_menu_bindings; | |
475 | ||
284f4730 JB |
476 | extern char *pending_malloc_warning; |
477 | ||
beecf6a1 | 478 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 479 | |
beecf6a1 KH |
480 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
481 | ||
da8f7368 | 482 | /* Vector to GCPRO the Lisp objects referenced from kbd_buffer. |
beecf6a1 KH |
483 | |
484 | The interrupt-level event handlers will never enqueue an event on a | |
485 | frame which is not in Vframe_list, and once an event is dequeued, | |
486 | internal_last_event_frame or the event itself points to the frame. | |
487 | So that's all fine. | |
488 | ||
489 | But while the event is sitting in the queue, it's completely | |
490 | unprotected. Suppose the user types one command which will run for | |
491 | a while and then delete a frame, and then types another event at | |
492 | the frame that will be deleted, before the command gets around to | |
493 | it. Suppose there are no references to this frame elsewhere in | |
494 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
495 | have an event referring to a freed frame, which will crash Emacs | |
496 | when it is dequeued. | |
497 | ||
498 | Similar things happen when an event on a scroll bar is enqueued; the | |
499 | window may be deleted while the event is in the queue. | |
500 | ||
da8f7368 GM |
501 | So, we use this vector to protect the Lisp_Objects in the event |
502 | queue. That way, they'll be dequeued as dead frames or windows, | |
503 | but still valid Lisp objects. | |
beecf6a1 | 504 | |
3b8f9651 | 505 | If kbd_buffer[i].kind != NO_EVENT, then |
da8f7368 GM |
506 | |
507 | AREF (kbd_buffer_gcpro, 2 * i) == kbd_buffer[i].frame_or_window. | |
508 | AREF (kbd_buffer_gcpro, 2 * i + 1) == kbd_buffer[i].arg. */ | |
509 | ||
510 | static Lisp_Object kbd_buffer_gcpro; | |
beecf6a1 KH |
511 | |
512 | /* Pointer to next available character in kbd_buffer. | |
513 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 514 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
515 | next available char is in kbd_buffer[0]. */ |
516 | static struct input_event *kbd_fetch_ptr; | |
517 | ||
518 | /* Pointer to next place to store character in kbd_buffer. This | |
519 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
520 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 521 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
522 | |
523 | /* The above pair of variables forms a "queue empty" flag. When we | |
524 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
525 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
526 | there is input available iff the two pointers are not equal. | |
527 | ||
528 | Why not just have a flag set and cleared by the enqueuing and | |
529 | dequeuing functions? Such a flag could be screwed up by interrupts | |
530 | at inopportune times. */ | |
531 | ||
f3253854 | 532 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
533 | mouse moves, and motion events will appear in the input stream. |
534 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 535 | Lisp_Object do_mouse_tracking; |
284f4730 | 536 | |
284f4730 JB |
537 | /* Symbols to head events. */ |
538 | Lisp_Object Qmouse_movement; | |
3c370943 | 539 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 540 | Lisp_Object Qswitch_frame; |
bbdc2092 | 541 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
542 | Lisp_Object Qiconify_frame; |
543 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 544 | Lisp_Object Qselect_window; |
7ee32cda | 545 | Lisp_Object Qhelp_echo; |
cd21b839 | 546 | |
284f4730 JB |
547 | /* Symbols to denote kinds of events. */ |
548 | Lisp_Object Qfunction_key; | |
549 | Lisp_Object Qmouse_click; | |
742fbed7 | 550 | #ifdef WINDOWSNT |
1161d367 | 551 | Lisp_Object Qlanguage_change; |
07de30b9 | 552 | #endif |
a24dc617 | 553 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
554 | Lisp_Object Qsave_session; |
555 | ||
284f4730 | 556 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
557 | |
558 | /* Properties of event headers. */ | |
559 | Lisp_Object Qevent_kind; | |
88cb0656 | 560 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 561 | |
e8886a1d RS |
562 | /* menu item parts */ |
563 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 564 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
565 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
566 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
567 | extern Lisp_Object Vdefine_key_rebound_commands; |
568 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 569 | |
0a7f1fc0 JB |
570 | /* An event header symbol HEAD may have a property named |
571 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
572 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
573 | mask of modifiers applied to it. If present, this is used to help | |
574 | speed up parse_modifiers. */ | |
575 | Lisp_Object Qevent_symbol_element_mask; | |
576 | ||
577 | /* An unmodified event header BASE may have a property named | |
578 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
579 | modified versions of BASE. If present, this helps speed up | |
580 | apply_modifiers. */ | |
581 | Lisp_Object Qmodifier_cache; | |
582 | ||
5ec75a55 | 583 | /* Symbols to use for parts of windows. */ |
284f4730 | 584 | Lisp_Object Qmode_line; |
e5d77022 | 585 | Lisp_Object Qvertical_line; |
3c370943 | 586 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 587 | Lisp_Object Qmenu_bar; |
7d60ad8a | 588 | extern Lisp_Object Qleft_margin, Qright_margin; |
3d566707 | 589 | extern Lisp_Object Qleft_fringe, Qright_fringe; |
5ec75a55 | 590 | |
f4255cd1 JB |
591 | Lisp_Object recursive_edit_unwind (), command_loop (); |
592 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 593 | Lisp_Object Qextended_command_history; |
c04cbc3b | 594 | EMACS_TIME timer_check (); |
284f4730 | 595 | |
a0acc6c7 | 596 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 597 | |
2c834fb3 KH |
598 | extern char *x_get_keysym_name (); |
599 | ||
8eb4d8ef | 600 | static void record_menu_key (); |
22b94eeb | 601 | static int echo_length (); |
8eb4d8ef | 602 | |
f4eef8b4 RS |
603 | Lisp_Object Qpolling_period; |
604 | ||
d9d4c147 | 605 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
606 | Lisp_Object Vtimer_list; |
607 | ||
d9d4c147 KH |
608 | /* List of idle time timers. Appears in order of next scheduled event. */ |
609 | Lisp_Object Vtimer_idle_list; | |
610 | ||
87dd9b9b RS |
611 | /* Incremented whenever a timer is run. */ |
612 | int timers_run; | |
613 | ||
a9f16aa9 KH |
614 | extern Lisp_Object Vprint_level, Vprint_length; |
615 | ||
ffd56f97 JB |
616 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
617 | happens. */ | |
618 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
619 | |
620 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
621 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
622 | int interrupt_input; | |
623 | ||
624 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
625 | int interrupts_deferred; | |
626 | ||
87dd9b9b | 627 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
628 | int flow_control; |
629 | ||
284f4730 JB |
630 | /* Allow m- file to inhibit use of FIONREAD. */ |
631 | #ifdef BROKEN_FIONREAD | |
632 | #undef FIONREAD | |
633 | #endif | |
634 | ||
635 | /* We are unable to use interrupts if FIONREAD is not available, | |
636 | so flush SIGIO so we won't try. */ | |
637 | #ifndef FIONREAD | |
638 | #ifdef SIGIO | |
639 | #undef SIGIO | |
640 | #endif | |
641 | #endif | |
642 | ||
e98a93eb | 643 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 644 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 645 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
646 | #define POLL_FOR_INPUT |
647 | #endif | |
adf5cb9c KH |
648 | |
649 | /* After a command is executed, if point is moved into a region that | |
650 | has specific properties (e.g. composition, display), we adjust | |
651 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 652 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 653 | variable is set to nil before reading a command. */ |
da8f7368 | 654 | |
adf5cb9c KH |
655 | Lisp_Object Vdisable_point_adjustment; |
656 | ||
657 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 658 | |
adf5cb9c KH |
659 | Lisp_Object Vglobal_disable_point_adjustment; |
660 | ||
fdbb67fe GM |
661 | /* The time when Emacs started being idle. */ |
662 | ||
663 | static EMACS_TIME timer_idleness_start_time; | |
664 | ||
3021d3a9 RS |
665 | /* After Emacs stops being idle, this saves the last value |
666 | of timer_idleness_start_time from when it was idle. */ | |
667 | ||
668 | static EMACS_TIME timer_last_idleness_start_time; | |
669 | ||
284f4730 JB |
670 | \f |
671 | /* Global variable declarations. */ | |
672 | ||
673 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
674 | void (*keyboard_init_hook) (); | |
675 | ||
0bbfdc25 GM |
676 | static int read_avail_input P_ ((int)); |
677 | static void get_input_pending P_ ((int *, int)); | |
20057d52 | 678 | static void get_filtered_input_pending P_ ((int *, int, int)); |
0bbfdc25 | 679 | static int readable_events P_ ((int)); |
20057d52 | 680 | static int readable_filtered_events P_ ((int, int)); |
0bbfdc25 GM |
681 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, |
682 | Lisp_Object, int *)); | |
8150596a | 683 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
684 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
685 | Lisp_Object *)); | |
686 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 687 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
688 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
689 | enum scroll_bar_part, | |
690 | Lisp_Object, Lisp_Object, | |
691 | unsigned long)); | |
514354e9 | 692 | #endif |
0bbfdc25 GM |
693 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
694 | Lisp_Object, char **, | |
695 | Lisp_Object *, unsigned)); | |
696 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
697 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 698 | static int parse_solitary_modifier (); |
0bbfdc25 | 699 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 700 | static void save_getcjmp (); |
0bbfdc25 | 701 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 702 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 703 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 704 | static void any_kboard_state P_ ((void)); |
5598c32e | 705 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
284f4730 | 706 | |
8026024c KH |
707 | /* Nonzero means don't try to suspend even if the operating system seems |
708 | to support it. */ | |
709 | static int cannot_suspend; | |
710 | ||
284f4730 JB |
711 | /* Install the string STR as the beginning of the string of echoing, |
712 | so that it serves as a prompt for the next character. | |
713 | Also start echoing. */ | |
714 | ||
dfcf069d | 715 | void |
284f4730 | 716 | echo_prompt (str) |
a4ef85ee | 717 | Lisp_Object str; |
284f4730 | 718 | { |
678e9d18 | 719 | current_kboard->echo_string = str; |
0d121f7c | 720 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 721 | echo_now (); |
284f4730 JB |
722 | } |
723 | ||
df0f2ba1 | 724 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
725 | C can be a character, which is printed prettily ("M-C-x" and all that |
726 | jazz), or a symbol, whose name is printed. */ | |
727 | ||
dfcf069d | 728 | void |
284f4730 JB |
729 | echo_char (c) |
730 | Lisp_Object c; | |
731 | { | |
c5fdd383 | 732 | if (current_kboard->immediate_echo) |
284f4730 | 733 | { |
678e9d18 GM |
734 | int size = KEY_DESCRIPTION_SIZE + 100; |
735 | char *buffer = (char *) alloca (size); | |
736 | char *ptr = buffer; | |
737 | Lisp_Object echo_string; | |
284f4730 | 738 | |
0d121f7c | 739 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 740 | |
284f4730 | 741 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 742 | c = EVENT_HEAD (c); |
284f4730 | 743 | |
8c18cbfb | 744 | if (INTEGERP (c)) |
284f4730 | 745 | { |
678e9d18 | 746 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 747 | } |
8c18cbfb | 748 | else if (SYMBOLP (c)) |
284f4730 | 749 | { |
1b049b51 KR |
750 | Lisp_Object name = SYMBOL_NAME (c); |
751 | int nbytes = SBYTES (name); | |
c60ee5e7 | 752 | |
0d121f7c | 753 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
754 | { |
755 | int offset = ptr - buffer; | |
0d121f7c | 756 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
757 | buffer = (char *) alloca (size); |
758 | ptr = buffer + offset; | |
759 | } | |
760 | ||
1b049b51 KR |
761 | ptr += copy_text (SDATA (name), ptr, nbytes, |
762 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
763 | } |
764 | ||
0d121f7c | 765 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 766 | && help_char_p (c)) |
284f4730 | 767 | { |
678e9d18 GM |
768 | const char *text = " (Type ? for further options)"; |
769 | int len = strlen (text); | |
c60ee5e7 | 770 | |
678e9d18 GM |
771 | if (size - (ptr - buffer) < len) |
772 | { | |
773 | int offset = ptr - buffer; | |
774 | size += len; | |
775 | buffer = (char *) alloca (size); | |
776 | ptr = buffer + offset; | |
777 | } | |
778 | ||
779 | bcopy (text, ptr, len); | |
780 | ptr += len; | |
284f4730 JB |
781 | } |
782 | ||
0d121f7c GM |
783 | /* Replace a dash from echo_dash with a space, otherwise |
784 | add a space at the end as a separator between keys. */ | |
678e9d18 | 785 | if (STRINGP (echo_string) |
2ff4d3d9 | 786 | && SCHARS (echo_string) > 1) |
0d121f7c | 787 | { |
2ff4d3d9 RS |
788 | Lisp_Object last_char, prev_char, idx; |
789 | ||
790 | idx = make_number (SCHARS (echo_string) - 2); | |
791 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
792 | |
793 | idx = make_number (SCHARS (echo_string) - 1); | |
794 | last_char = Faref (echo_string, idx); | |
795 | ||
2ff4d3d9 RS |
796 | /* We test PREV_CHAR to make sure this isn't the echoing |
797 | of a minus-sign. */ | |
798 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
799 | Faset (echo_string, idx, make_number (' ')); |
800 | else | |
801 | echo_string = concat2 (echo_string, build_string (" ")); | |
802 | } | |
678e9d18 GM |
803 | |
804 | current_kboard->echo_string | |
805 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 806 | |
3dbd9ee4 | 807 | echo_now (); |
284f4730 JB |
808 | } |
809 | } | |
810 | ||
811 | /* Temporarily add a dash to the end of the echo string if it's not | |
812 | empty, so that it serves as a mini-prompt for the very next character. */ | |
813 | ||
dfcf069d | 814 | void |
284f4730 JB |
815 | echo_dash () |
816 | { | |
678e9d18 GM |
817 | /* Do nothing if not echoing at all. */ |
818 | if (NILP (current_kboard->echo_string)) | |
819 | return; | |
820 | ||
c5fdd383 | 821 | if (!current_kboard->immediate_echo |
0d121f7c | 822 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 823 | return; |
c60ee5e7 | 824 | |
7a80a6f6 | 825 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 826 | if (current_kboard->echo_after_prompt |
0d121f7c | 827 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 828 | return; |
c60ee5e7 | 829 | |
284f4730 JB |
830 | /* Put a dash at the end of the buffer temporarily, |
831 | but make it go away when the next character is added. */ | |
678e9d18 GM |
832 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
833 | build_string ("-")); | |
3dbd9ee4 | 834 | echo_now (); |
284f4730 JB |
835 | } |
836 | ||
837 | /* Display the current echo string, and begin echoing if not already | |
838 | doing so. */ | |
839 | ||
07a59269 | 840 | void |
3dbd9ee4 | 841 | echo_now () |
284f4730 | 842 | { |
c5fdd383 | 843 | if (!current_kboard->immediate_echo) |
284f4730 JB |
844 | { |
845 | int i; | |
c5fdd383 | 846 | current_kboard->immediate_echo = 1; |
284f4730 JB |
847 | |
848 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
849 | { |
850 | Lisp_Object c; | |
22b94eeb RS |
851 | |
852 | /* Set before_command_echo_length to the value that would | |
853 | have been saved before the start of this subcommand in | |
854 | command_loop_1, if we had already been echoing then. */ | |
855 | if (i == this_single_command_key_start) | |
856 | before_command_echo_length = echo_length (); | |
857 | ||
d0a57728 RS |
858 | c = XVECTOR (this_command_keys)->contents[i]; |
859 | if (! (EVENT_HAS_PARAMETERS (c) | |
860 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
861 | echo_char (c); | |
862 | } | |
22b94eeb RS |
863 | |
864 | /* Set before_command_echo_length to the value that would | |
865 | have been saved before the start of this subcommand in | |
866 | command_loop_1, if we had already been echoing then. */ | |
867 | if (this_command_key_count == this_single_command_key_start) | |
868 | before_command_echo_length = echo_length (); | |
869 | ||
870 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
871 | echo_dash (); |
872 | } | |
873 | ||
874 | echoing = 1; | |
678e9d18 | 875 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 876 | SBYTES (current_kboard->echo_string), |
d5db4077 | 877 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
878 | echoing = 0; |
879 | ||
59a84f8e GM |
880 | /* Record in what buffer we echoed, and from which kboard. */ |
881 | echo_message_buffer = echo_area_buffer[0]; | |
882 | echo_kboard = current_kboard; | |
883 | ||
284f4730 JB |
884 | if (waiting_for_input && !NILP (Vquit_flag)) |
885 | quit_throw_to_read_char (); | |
886 | } | |
887 | ||
888 | /* Turn off echoing, for the start of a new command. */ | |
889 | ||
dfcf069d | 890 | void |
284f4730 JB |
891 | cancel_echoing () |
892 | { | |
c5fdd383 | 893 | current_kboard->immediate_echo = 0; |
c5fdd383 | 894 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 895 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
896 | ok_to_echo_at_next_pause = NULL; |
897 | echo_kboard = NULL; | |
898 | echo_message_buffer = Qnil; | |
284f4730 JB |
899 | } |
900 | ||
901 | /* Return the length of the current echo string. */ | |
902 | ||
903 | static int | |
904 | echo_length () | |
905 | { | |
678e9d18 | 906 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 907 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 908 | : 0); |
284f4730 JB |
909 | } |
910 | ||
911 | /* Truncate the current echo message to its first LEN chars. | |
912 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 913 | switches frames while entering a key sequence. */ |
284f4730 JB |
914 | |
915 | static void | |
678e9d18 GM |
916 | echo_truncate (nchars) |
917 | int nchars; | |
918 | { | |
919 | if (STRINGP (current_kboard->echo_string)) | |
920 | current_kboard->echo_string | |
921 | = Fsubstring (current_kboard->echo_string, | |
922 | make_number (0), make_number (nchars)); | |
923 | truncate_echo_area (nchars); | |
284f4730 JB |
924 | } |
925 | ||
926 | \f | |
927 | /* Functions for manipulating this_command_keys. */ | |
928 | static void | |
929 | add_command_key (key) | |
930 | Lisp_Object key; | |
931 | { | |
22b94eeb RS |
932 | #if 0 /* Not needed after we made Freset_this_command_lengths |
933 | do the job immediately. */ | |
71918b75 RS |
934 | /* If reset-this-command-length was called recently, obey it now. |
935 | See the doc string of that function for an explanation of why. */ | |
936 | if (before_command_restore_flag) | |
937 | { | |
938 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
939 | if (this_command_key_count < this_single_command_key_start) |
940 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
941 | echo_truncate (before_command_echo_length_1); |
942 | before_command_restore_flag = 0; | |
943 | } | |
22b94eeb | 944 | #endif |
71918b75 | 945 | |
f4e05d97 GM |
946 | if (this_command_key_count >= ASIZE (this_command_keys)) |
947 | this_command_keys = larger_vector (this_command_keys, | |
948 | 2 * ASIZE (this_command_keys), | |
949 | Qnil); | |
6569cc8d | 950 | |
f4e05d97 GM |
951 | AREF (this_command_keys, this_command_key_count) = key; |
952 | ++this_command_key_count; | |
284f4730 | 953 | } |
f4e05d97 | 954 | |
284f4730 JB |
955 | \f |
956 | Lisp_Object | |
957 | recursive_edit_1 () | |
958 | { | |
aed13378 | 959 | int count = SPECPDL_INDEX (); |
284f4730 JB |
960 | Lisp_Object val; |
961 | ||
962 | if (command_loop_level > 0) | |
963 | { | |
964 | specbind (Qstandard_output, Qt); | |
965 | specbind (Qstandard_input, Qt); | |
966 | } | |
967 | ||
84265027 | 968 | #ifdef HAVE_X_WINDOWS |
526a058f | 969 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 970 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
971 | can take some time. Do not check for display_hourglass_p here, |
972 | because it could already be nil. */ | |
526a058f | 973 | cancel_hourglass (); |
84265027 GM |
974 | #endif |
975 | ||
980a2d69 GM |
976 | /* This function may have been called from a debugger called from |
977 | within redisplay, for instance by Edebugging a function called | |
978 | from fontification-functions. We want to allow redisplay in | |
979 | the debugging session. | |
980 | ||
981 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
982 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
983 | recursive edit, the original redisplay leading to the recursive | |
984 | edit will be unwound. The outcome should therefore be safe. */ | |
985 | specbind (Qinhibit_redisplay, Qnil); | |
986 | redisplaying_p = 0; | |
987 | ||
284f4730 JB |
988 | val = command_loop (); |
989 | if (EQ (val, Qt)) | |
990 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
991 | /* Handle throw from read_minibuf when using minibuffer |
992 | while it's active but we're in another window. */ | |
993 | if (STRINGP (val)) | |
994 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 995 | |
cb5df6ae | 996 | return unbind_to (count, Qnil); |
284f4730 JB |
997 | } |
998 | ||
999 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 1000 | |
07a59269 | 1001 | void |
284f4730 JB |
1002 | record_auto_save () |
1003 | { | |
c43b1734 | 1004 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 1005 | } |
5846638c RS |
1006 | |
1007 | /* Make an auto save happen as soon as possible at command level. */ | |
1008 | ||
dfcf069d | 1009 | void |
5846638c RS |
1010 | force_auto_save_soon () |
1011 | { | |
1012 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
1013 | |
1014 | record_asynch_buffer_change (); | |
5846638c | 1015 | } |
284f4730 | 1016 | \f |
284f4730 | 1017 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
1018 | doc: /* Invoke the editor command loop recursively. |
1019 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1020 | that tells this function to return. | |
1021 | Alternately, `(throw 'exit t)' makes this function signal an error. | |
1022 | This function is called by the editor initialization to begin editing. */) | |
1023 | () | |
284f4730 | 1024 | { |
aed13378 | 1025 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1026 | Lisp_Object buffer; |
284f4730 JB |
1027 | |
1028 | command_loop_level++; | |
1029 | update_mode_lines = 1; | |
1030 | ||
9ce50b1e GM |
1031 | if (command_loop_level |
1032 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1033 | buffer = Fcurrent_buffer (); | |
1034 | else | |
1035 | buffer = Qnil; | |
1036 | ||
1037 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1038 | like it is done in the splash screen display, we have to | |
1039 | make sure that we restore single_kboard as command_loop_1 | |
1040 | would have done if it were left normally. */ | |
284f4730 | 1041 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1042 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1043 | ||
284f4730 JB |
1044 | recursive_edit_1 (); |
1045 | return unbind_to (count, Qnil); | |
1046 | } | |
1047 | ||
1048 | Lisp_Object | |
9ce50b1e GM |
1049 | recursive_edit_unwind (info) |
1050 | Lisp_Object info; | |
284f4730 | 1051 | { |
9ce50b1e GM |
1052 | if (BUFFERP (XCAR (info))) |
1053 | Fset_buffer (XCAR (info)); | |
c60ee5e7 | 1054 | |
9ce50b1e GM |
1055 | if (NILP (XCDR (info))) |
1056 | any_kboard_state (); | |
1057 | else | |
1058 | single_kboard_state (); | |
c60ee5e7 | 1059 | |
284f4730 JB |
1060 | command_loop_level--; |
1061 | update_mode_lines = 1; | |
1062 | return Qnil; | |
1063 | } | |
9ce50b1e | 1064 | |
284f4730 | 1065 | \f |
604ccd1d | 1066 | static void |
1e8bd3da | 1067 | any_kboard_state () |
604ccd1d | 1068 | { |
1e8bd3da RS |
1069 | #ifdef MULTI_KBOARD |
1070 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1071 | it will right away be read by read_key_sequence, | |
1072 | and then if we do switch KBOARDS, it will go into the side | |
1073 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1074 | if (CONSP (Vunread_command_events)) |
4524b161 | 1075 | { |
c5fdd383 KH |
1076 | current_kboard->kbd_queue |
1077 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1078 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1079 | } |
604ccd1d | 1080 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1081 | #endif |
1082 | single_kboard = 0; | |
1083 | #endif | |
604ccd1d | 1084 | } |
1e8bd3da RS |
1085 | |
1086 | /* Switch to the single-kboard state, making current_kboard | |
1087 | the only KBOARD from which further input is accepted. */ | |
1088 | ||
1089 | void | |
1090 | single_kboard_state () | |
1091 | { | |
1092 | #ifdef MULTI_KBOARD | |
1093 | single_kboard = 1; | |
604ccd1d | 1094 | #endif |
1e8bd3da RS |
1095 | } |
1096 | ||
1097 | /* Maintain a stack of kboards, so other parts of Emacs | |
1098 | can switch temporarily to the kboard of a given frame | |
1099 | and then revert to the previous status. */ | |
1100 | ||
1101 | struct kboard_stack | |
1102 | { | |
1103 | KBOARD *kboard; | |
1104 | struct kboard_stack *next; | |
1105 | }; | |
1106 | ||
1107 | static struct kboard_stack *kboard_stack; | |
1108 | ||
1109 | void | |
1110 | push_frame_kboard (f) | |
1111 | FRAME_PTR f; | |
1112 | { | |
ab48365b | 1113 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1114 | struct kboard_stack *p |
1115 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1116 | ||
1117 | p->next = kboard_stack; | |
1118 | p->kboard = current_kboard; | |
1119 | kboard_stack = p; | |
1120 | ||
1121 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1122 | #endif |
1e8bd3da RS |
1123 | } |
1124 | ||
1125 | void | |
1126 | pop_frame_kboard () | |
1127 | { | |
ab48365b | 1128 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1129 | struct kboard_stack *p = kboard_stack; |
1130 | current_kboard = p->kboard; | |
1131 | kboard_stack = p->next; | |
1132 | xfree (p); | |
ab48365b | 1133 | #endif |
1e8bd3da RS |
1134 | } |
1135 | \f | |
1136 | /* Handle errors that are not handled at inner levels | |
1137 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1138 | |
284f4730 JB |
1139 | Lisp_Object |
1140 | cmd_error (data) | |
1141 | Lisp_Object data; | |
a1341f75 | 1142 | { |
a9f16aa9 | 1143 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1144 | char macroerror[50]; |
1145 | ||
160552c5 RS |
1146 | #ifdef HAVE_X_WINDOWS |
1147 | if (display_hourglass_p) | |
1148 | cancel_hourglass (); | |
1149 | #endif | |
1150 | ||
e881d8b2 RS |
1151 | if (!NILP (executing_macro)) |
1152 | { | |
1153 | if (executing_macro_iterations == 1) | |
1154 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1155 | else | |
1156 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1157 | executing_macro_iterations); | |
1158 | } | |
1159 | else | |
1160 | *macroerror = 0; | |
a9f16aa9 | 1161 | |
a1341f75 RS |
1162 | Vstandard_output = Qt; |
1163 | Vstandard_input = Qt; | |
1164 | Vexecuting_macro = Qnil; | |
9f58e89e | 1165 | executing_macro = Qnil; |
d8bcf58e | 1166 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1167 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1168 | cancel_echoing (); |
a9f16aa9 KH |
1169 | |
1170 | /* Avoid unquittable loop if data contains a circular list. */ | |
1171 | old_level = Vprint_level; | |
1172 | old_length = Vprint_length; | |
0c04a67e RS |
1173 | XSETFASTINT (Vprint_level, 10); |
1174 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1175 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1176 | Vprint_level = old_level; |
1177 | Vprint_length = old_length; | |
a1341f75 RS |
1178 | |
1179 | Vquit_flag = Qnil; | |
1180 | ||
1181 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1182 | #ifdef MULTI_KBOARD |
1e8bd3da | 1183 | any_kboard_state (); |
ff4b06d3 | 1184 | #endif |
a1341f75 RS |
1185 | |
1186 | return make_number (0); | |
1187 | } | |
1188 | ||
301738ed RS |
1189 | /* Take actions on handling an error. DATA is the data that describes |
1190 | the error. | |
1191 | ||
1192 | CONTEXT is a C-string containing ASCII characters only which | |
1193 | describes the context in which the error happened. If we need to | |
1194 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1195 | string. */ | |
1196 | ||
07a59269 | 1197 | void |
a1341f75 RS |
1198 | cmd_error_internal (data, context) |
1199 | Lisp_Object data; | |
1200 | char *context; | |
284f4730 | 1201 | { |
284f4730 | 1202 | Lisp_Object stream; |
7ee32cda | 1203 | int kill_emacs_p = 0; |
788f89eb | 1204 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1205 | |
1206 | Vquit_flag = Qnil; | |
1207 | Vinhibit_quit = Qt; | |
985f9f66 | 1208 | clear_message (1, 0); |
284f4730 | 1209 | |
ff11dfa1 | 1210 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1211 | yet, or we're not interactive, it's best to dump this message out |
1212 | to stderr and exit. */ | |
788f89eb | 1213 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1214 | /* This is the case of the frame dumped with Emacs, when we're |
1215 | running under a window system. */ | |
1216 | || (!NILP (Vwindow_system) | |
1217 | && !inhibit_window_system | |
788f89eb | 1218 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1219 | || noninteractive) |
7ee32cda GM |
1220 | { |
1221 | stream = Qexternal_debugging_output; | |
1222 | kill_emacs_p = 1; | |
1223 | } | |
284f4730 JB |
1224 | else |
1225 | { | |
1226 | Fdiscard_input (); | |
dc4854ce | 1227 | message_log_maybe_newline (); |
284f4730 JB |
1228 | bitch_at_user (); |
1229 | stream = Qt; | |
1230 | } | |
1231 | ||
dc4854ce RS |
1232 | /* The immediate context is not interesting for Quits, |
1233 | since they are asyncronous. */ | |
1234 | if (EQ (XCAR (data), Qquit)) | |
1235 | Vsignaling_function = Qnil; | |
c60ee5e7 | 1236 | |
dc4854ce | 1237 | print_error_message (data, stream, context, Vsignaling_function); |
a1341f75 | 1238 | |
dc4854ce | 1239 | Vsignaling_function = Qnil; |
284f4730 | 1240 | |
ff11dfa1 | 1241 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1242 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1243 | if (kill_emacs_p) |
284f4730 JB |
1244 | { |
1245 | Fterpri (stream); | |
1246 | Fkill_emacs (make_number (-1)); | |
1247 | } | |
284f4730 JB |
1248 | } |
1249 | \f | |
1250 | Lisp_Object command_loop_1 (); | |
1251 | Lisp_Object command_loop_2 (); | |
1252 | Lisp_Object top_level_1 (); | |
1253 | ||
1254 | /* Entry to editor-command-loop. | |
1255 | This level has the catches for exiting/returning to editor command loop. | |
1256 | It returns nil to exit recursive edit, t to abort it. */ | |
1257 | ||
1258 | Lisp_Object | |
1259 | command_loop () | |
1260 | { | |
1261 | if (command_loop_level > 0 || minibuf_level > 0) | |
1262 | { | |
07ba902e RS |
1263 | Lisp_Object val; |
1264 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1265 | executing_macro = Qnil; |
1266 | return val; | |
284f4730 JB |
1267 | } |
1268 | else | |
1269 | while (1) | |
1270 | { | |
1271 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1272 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1273 | executing_macro = Qnil; |
df0f2ba1 | 1274 | |
284f4730 JB |
1275 | /* End of file in -batch run causes exit here. */ |
1276 | if (noninteractive) | |
1277 | Fkill_emacs (Qt); | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* Here we catch errors in execution of commands within the | |
1282 | editing loop, and reenter the editing loop. | |
1283 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1284 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1285 | returned due to end of file (or end of kbd macro). */ |
1286 | ||
1287 | Lisp_Object | |
1288 | command_loop_2 () | |
1289 | { | |
1290 | register Lisp_Object val; | |
1291 | ||
1292 | do | |
1293 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1294 | while (!NILP (val)); | |
1295 | ||
1296 | return Qnil; | |
1297 | } | |
1298 | ||
1299 | Lisp_Object | |
1300 | top_level_2 () | |
1301 | { | |
1302 | return Feval (Vtop_level); | |
1303 | } | |
1304 | ||
1305 | Lisp_Object | |
1306 | top_level_1 () | |
1307 | { | |
1308 | /* On entry to the outer level, run the startup file */ | |
1309 | if (!NILP (Vtop_level)) | |
1310 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1311 | else if (!NILP (Vpurify_flag)) | |
1312 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1313 | else | |
1314 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1315 | return Qnil; | |
1316 | } | |
1317 | ||
1318 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1319 | doc: /* Exit all recursive editing levels. */) |
1320 | () | |
284f4730 | 1321 | { |
2c9cf2c8 | 1322 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1323 | if (display_hourglass_p) |
1324 | cancel_hourglass (); | |
2c9cf2c8 | 1325 | #endif |
8c907a56 | 1326 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1327 | } |
1328 | ||
1329 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1330 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1331 | () | |
284f4730 JB |
1332 | { |
1333 | if (command_loop_level > 0 || minibuf_level > 0) | |
1334 | Fthrow (Qexit, Qnil); | |
1335 | ||
1336 | error ("No recursive edit is in progress"); | |
8c907a56 | 1337 | return Qnil; |
284f4730 JB |
1338 | } |
1339 | ||
1340 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1341 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1342 | () | |
284f4730 JB |
1343 | { |
1344 | if (command_loop_level > 0 || minibuf_level > 0) | |
1345 | Fthrow (Qexit, Qt); | |
1346 | ||
1347 | error ("No recursive edit is in progress"); | |
8c907a56 | 1348 | return Qnil; |
284f4730 JB |
1349 | } |
1350 | \f | |
1351 | /* This is the actual command reading loop, | |
1352 | sans error-handling encapsulation. */ | |
1353 | ||
a7b772c1 GM |
1354 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1355 | int, int, int)); | |
1356 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1357 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1358 | |
0af912f0 JD |
1359 | /* Cancel hourglass from protect_unwind. |
1360 | ARG is not used. */ | |
bb8db7e1 | 1361 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1362 | static Lisp_Object |
1363 | cancel_hourglass_unwind (arg) | |
1364 | Lisp_Object arg; | |
1365 | { | |
1366 | cancel_hourglass (); | |
1367 | } | |
bb8db7e1 | 1368 | #endif |
0af912f0 | 1369 | |
284f4730 JB |
1370 | Lisp_Object |
1371 | command_loop_1 () | |
1372 | { | |
03cee6ae GM |
1373 | Lisp_Object cmd; |
1374 | int lose; | |
284f4730 JB |
1375 | int nonundocount; |
1376 | Lisp_Object keybuf[30]; | |
1377 | int i; | |
284f4730 | 1378 | int no_direct; |
86e5706b | 1379 | int prev_modiff; |
8c907a56 | 1380 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1381 | #ifdef MULTI_KBOARD |
1e8bd3da | 1382 | int was_locked = single_kboard; |
bded54dd | 1383 | #endif |
2764bebd | 1384 | int already_adjusted; |
284f4730 | 1385 | |
d9b641bb | 1386 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1387 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1388 | Vdeactivate_mark = Qnil; |
284f4730 | 1389 | waiting_for_input = 0; |
df0f2ba1 | 1390 | cancel_echoing (); |
284f4730 | 1391 | |
284f4730 | 1392 | nonundocount = 0; |
284f4730 | 1393 | this_command_key_count = 0; |
63020c46 | 1394 | this_command_key_count_reset = 0; |
6321824f | 1395 | this_single_command_key_start = 0; |
284f4730 | 1396 | |
325309f5 | 1397 | if (NILP (Vmemory_full)) |
59aadc81 | 1398 | { |
10ffcb64 RS |
1399 | /* Make sure this hook runs after commands that get errors and |
1400 | throw to top level. */ | |
1401 | /* Note that the value cell will never directly contain nil | |
1402 | if the symbol is a local variable. */ | |
1403 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1404 | safe_run_hooks (Qpost_command_hook); | |
1405 | ||
1406 | /* If displaying a message, resize the echo area window to fit | |
1407 | that message's size exactly. */ | |
1408 | if (!NILP (echo_area_buffer[0])) | |
1409 | resize_echo_area_exactly (); | |
1410 | ||
1411 | if (!NILP (Vdeferred_action_list)) | |
1412 | call0 (Vdeferred_action_function); | |
1413 | ||
1414 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1415 | { | |
1416 | if (NILP (Vunread_command_events) | |
1417 | && NILP (Vunread_input_method_events) | |
1418 | && NILP (Vunread_post_input_method_events) | |
1419 | && NILP (Vexecuting_macro) | |
1420 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1421 | safe_run_hooks (Qpost_command_idle_hook); | |
1422 | } | |
59aadc81 RS |
1423 | } |
1424 | ||
10ffcb64 RS |
1425 | Vmemory_full = Qnil; |
1426 | ||
51d5a2c9 | 1427 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1428 | current_kboard->Vlast_command = Vthis_command; |
1429 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1430 | |
284f4730 JB |
1431 | while (1) |
1432 | { | |
788f89eb | 1433 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1434 | Fkill_emacs (Qnil); |
1435 | ||
284f4730 JB |
1436 | /* Make sure the current window's buffer is selected. */ |
1437 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1438 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1439 | ||
1440 | /* Display any malloc warning that just came out. Use while because | |
1441 | displaying one warning can cause another. */ | |
1442 | ||
1443 | while (pending_malloc_warning) | |
1444 | display_malloc_warning (); | |
1445 | ||
1446 | no_direct = 0; | |
1447 | ||
86e5706b RS |
1448 | Vdeactivate_mark = Qnil; |
1449 | ||
284f4730 | 1450 | /* If minibuffer on and echo area in use, |
00392ce6 | 1451 | wait a short time and redraw minibuffer. */ |
284f4730 | 1452 | |
7ee32cda | 1453 | if (minibuf_level |
985f9f66 | 1454 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1455 | && EQ (minibuf_window, echo_area_window) |
1456 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1457 | { |
f1bed6d8 RS |
1458 | /* Bind inhibit-quit to t so that C-g gets read in |
1459 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1460 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1461 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1462 | |
00392ce6 | 1463 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1464 | /* Clear the echo area. */ |
301738ed | 1465 | message2 (0, 0, 0); |
cdb9d665 | 1466 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1467 | |
db08707d RS |
1468 | unbind_to (count, Qnil); |
1469 | ||
e6aa7813 | 1470 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1471 | if (!NILP (Vquit_flag)) |
1472 | { | |
1473 | Vquit_flag = Qnil; | |
24597608 | 1474 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1475 | } |
1476 | } | |
1477 | ||
1478 | #ifdef C_ALLOCA | |
ff4b06d3 | 1479 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1480 | /* Since we can free the most stuff here. */ |
1481 | #endif /* C_ALLOCA */ | |
1482 | ||
8f805655 | 1483 | #if 0 |
8f805655 JB |
1484 | /* Select the frame that the last event came from. Usually, |
1485 | switch-frame events will take care of this, but if some lisp | |
1486 | code swallows a switch-frame event, we'll fix things up here. | |
1487 | Is this a good idea? */ | |
8c18cbfb | 1488 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1489 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1490 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1491 | #endif |
48e416d4 RS |
1492 | /* If it has changed current-menubar from previous value, |
1493 | really recompute the menubar from the value. */ | |
a646e520 RS |
1494 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1495 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1496 | call0 (Qrecompute_lucid_menubar); |
1497 | ||
71918b75 RS |
1498 | before_command_key_count = this_command_key_count; |
1499 | before_command_echo_length = echo_length (); | |
1500 | ||
d5eecefb RS |
1501 | Vthis_command = Qnil; |
1502 | real_this_command = Qnil; | |
d7437ef6 | 1503 | |
8f805655 | 1504 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1505 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1506 | Qnil, 0, 1, 1); |
8f805655 | 1507 | |
6fac1409 | 1508 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1509 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1510 | Fkill_emacs (Qnil); |
6fac1409 RS |
1511 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1512 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1513 | ||
8f805655 JB |
1514 | ++num_input_keys; |
1515 | ||
284f4730 JB |
1516 | /* Now we have read a key sequence of length I, |
1517 | or else I is 0 and we found end of file. */ | |
1518 | ||
1519 | if (i == 0) /* End of file -- happens only in */ | |
1520 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1521 | /* -1 means read_key_sequence got a menu that was rejected. |
1522 | Just loop around and read another command. */ | |
1523 | if (i == -1) | |
1524 | { | |
1525 | cancel_echoing (); | |
1526 | this_command_key_count = 0; | |
63020c46 | 1527 | this_command_key_count_reset = 0; |
6321824f | 1528 | this_single_command_key_start = 0; |
ff4b06d3 | 1529 | goto finalize; |
dcc408a0 | 1530 | } |
284f4730 | 1531 | |
284f4730 JB |
1532 | last_command_char = keybuf[i - 1]; |
1533 | ||
75c0b143 RS |
1534 | /* If the previous command tried to force a specific window-start, |
1535 | forget about that, in case this command moves point far away | |
c422836d KH |
1536 | from that position. But also throw away beg_unchanged and |
1537 | end_unchanged information in that case, so that redisplay will | |
1538 | update the whole window properly. */ | |
1539 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1540 | { | |
9351ebd0 | 1541 | struct buffer *b; |
c422836d | 1542 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1543 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1544 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1545 | } |
75c0b143 | 1546 | |
284f4730 JB |
1547 | cmd = read_key_sequence_cmd; |
1548 | if (!NILP (Vexecuting_macro)) | |
1549 | { | |
1550 | if (!NILP (Vquit_flag)) | |
1551 | { | |
1552 | Vexecuting_macro = Qt; | |
1553 | QUIT; /* Make some noise. */ | |
1554 | /* Will return since macro now empty. */ | |
1555 | } | |
1556 | } | |
1557 | ||
1558 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1559 | cases identified below. */ |
86e5706b RS |
1560 | prev_buffer = current_buffer; |
1561 | prev_modiff = MODIFF; | |
8746da95 | 1562 | last_point_position = PT; |
18cd2eeb | 1563 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1564 | |
adf5cb9c KH |
1565 | /* By default, we adjust point to a boundary of a region that |
1566 | has such a property that should be treated intangible | |
1567 | (e.g. composition, display). But, some commands will set | |
1568 | this variable differently. */ | |
1569 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1570 | |
be2488ca GM |
1571 | /* Process filters and timers may have messed with deactivate-mark. |
1572 | reset it before we execute the command. */ | |
1573 | Vdeactivate_mark = Qnil; | |
1574 | ||
8b9940e6 KS |
1575 | /* Remap command through active keymaps */ |
1576 | Vthis_original_command = cmd; | |
a34cb674 | 1577 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1578 | { |
1579 | Lisp_Object cmd1; | |
023b93f6 | 1580 | if (cmd1 = Fcommand_remapping (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1581 | cmd = cmd1; |
1582 | } | |
1583 | ||
284f4730 JB |
1584 | /* Execute the command. */ |
1585 | ||
d5eecefb RS |
1586 | Vthis_command = cmd; |
1587 | real_this_command = cmd; | |
a98ea3f9 RS |
1588 | /* Note that the value cell will never directly contain nil |
1589 | if the symbol is a local variable. */ | |
e98a93eb | 1590 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1591 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1592 | |
2764bebd RS |
1593 | already_adjusted = 0; |
1594 | ||
d5eecefb | 1595 | if (NILP (Vthis_command)) |
284f4730 JB |
1596 | { |
1597 | /* nil means key is undefined. */ | |
1598 | bitch_at_user (); | |
c5fdd383 | 1599 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1600 | update_mode_lines = 1; |
d8bcf58e | 1601 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1602 | } |
1603 | else | |
1604 | { | |
d8bcf58e | 1605 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1606 | { |
75045dcb RS |
1607 | /* In case we jump to directly_done. */ |
1608 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1609 | ||
284f4730 JB |
1610 | /* Recognize some common commands in common situations and |
1611 | do them directly. */ | |
d5eecefb | 1612 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1613 | { |
51ad8a68 | 1614 | struct Lisp_Char_Table *dp |
284f4730 | 1615 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1616 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1617 | SET_PT (PT + 1); |
d86ba5c5 RS |
1618 | if (! NILP (Vpost_command_hook)) |
1619 | /* Put this before calling adjust_point_for_property | |
1620 | so it will only get called once in any case. */ | |
1621 | goto directly_done; | |
22b94eeb RS |
1622 | if (current_buffer == prev_buffer |
1623 | && last_point_position != PT | |
1624 | && NILP (Vdisable_point_adjustment) | |
1625 | && NILP (Vglobal_disable_point_adjustment)) | |
1626 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1627 | already_adjusted = 1; |
1628 | if (PT == last_point_position + 1 | |
1629 | && (dp | |
1630 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1631 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1632 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1633 | && (lose >= 0x20 && lose < 0x7f))) | |
1634 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1635 | /* To extract the case of continuation on |
1636 | wide-column characters. */ | |
8458ede6 | 1637 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1638 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1639 | >= MODIFF) | |
598ba4c7 RS |
1640 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1641 | >= OVERLAY_MODIFF) | |
284f4730 | 1642 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1643 | == PT - 1) |
284f4730 JB |
1644 | && !windows_or_buffers_changed |
1645 | && EQ (current_buffer->selective_display, Qnil) | |
1646 | && !detect_input_pending () | |
962ae636 | 1647 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1648 | && NILP (Vexecuting_macro)) |
e35b6123 | 1649 | direct_output_forward_char (1); |
284f4730 JB |
1650 | goto directly_done; |
1651 | } | |
d5eecefb | 1652 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1653 | { |
51ad8a68 | 1654 | struct Lisp_Char_Table *dp |
284f4730 | 1655 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1656 | SET_PT (PT - 1); |
aaf35234 | 1657 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1658 | if (! NILP (Vpost_command_hook)) |
1659 | goto directly_done; | |
22b94eeb RS |
1660 | if (current_buffer == prev_buffer |
1661 | && last_point_position != PT | |
1662 | && NILP (Vdisable_point_adjustment) | |
1663 | && NILP (Vglobal_disable_point_adjustment)) | |
1664 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1665 | already_adjusted = 1; |
1666 | if (PT == last_point_position - 1 | |
1667 | && (dp | |
1668 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1669 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1670 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1671 | && (lose >= 0x20 && lose < 0x7f))) | |
1672 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1673 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1674 | >= MODIFF) | |
598ba4c7 RS |
1675 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1676 | >= OVERLAY_MODIFF) | |
284f4730 | 1677 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1678 | == PT + 1) |
284f4730 JB |
1679 | && !windows_or_buffers_changed |
1680 | && EQ (current_buffer->selective_display, Qnil) | |
1681 | && !detect_input_pending () | |
962ae636 | 1682 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 | 1683 | && NILP (Vexecuting_macro)) |
e35b6123 | 1684 | direct_output_forward_char (-1); |
284f4730 JB |
1685 | goto directly_done; |
1686 | } | |
d5eecefb | 1687 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 SM |
1688 | /* Try this optimization only on char keystrokes. */ |
1689 | && NATNUMP (last_command_char) | |
1690 | && CHAR_VALID_P (XFASTINT (last_command_char), 0)) | |
284f4730 | 1691 | { |
d86ba5c5 RS |
1692 | unsigned int c |
1693 | = translate_char (Vtranslation_table_for_input, | |
1694 | XFASTINT (last_command_char), 0, 0, 0); | |
fc9cce4e | 1695 | int value; |
fc9cce4e RS |
1696 | if (NILP (Vexecuting_macro) |
1697 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1698 | { |
1699 | if (!nonundocount || nonundocount >= 20) | |
1700 | { | |
1701 | Fundo_boundary (); | |
1702 | nonundocount = 0; | |
1703 | } | |
1704 | nonundocount++; | |
1705 | } | |
c60ee5e7 | 1706 | |
fc9cce4e RS |
1707 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1708 | < MODIFF) | |
598ba4c7 RS |
1709 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1710 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1711 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1712 | != PT) | |
4c61f38e | 1713 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1714 | || windows_or_buffers_changed |
1715 | || !EQ (current_buffer->selective_display, Qnil) | |
1716 | || detect_input_pending () | |
962ae636 | 1717 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1718 | || !NILP (Vexecuting_macro)); |
c60ee5e7 | 1719 | |
fc9cce4e | 1720 | value = internal_self_insert (c, 0); |
7ee32cda | 1721 | |
fc9cce4e RS |
1722 | if (value == 2) |
1723 | nonundocount = 0; | |
1724 | ||
294d643a RS |
1725 | if (! NILP (Vpost_command_hook)) |
1726 | /* Put this before calling adjust_point_for_property | |
1727 | so it will only get called once in any case. */ | |
1728 | goto directly_done; | |
1729 | ||
7ee32cda GM |
1730 | /* VALUE == 1 when AFTER-CHANGE functions are |
1731 | installed which is the case most of the time | |
1732 | because FONT-LOCK installs one. */ | |
1733 | if (!lose && !value) | |
e35b6123 | 1734 | direct_output_for_insert (c); |
284f4730 JB |
1735 | goto directly_done; |
1736 | } | |
1737 | } | |
1738 | ||
1739 | /* Here for a command that isn't executed directly */ | |
1740 | ||
0af912f0 | 1741 | { |
7ee32cda | 1742 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1743 | int scount = SPECPDL_INDEX (); |
1744 | ||
1745 | if (display_hourglass_p | |
1746 | && NILP (Vexecuting_macro)) | |
1747 | { | |
1748 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1749 | start_hourglass (); | |
1750 | } | |
7ee32cda GM |
1751 | #endif |
1752 | ||
0af912f0 JD |
1753 | nonundocount = 0; |
1754 | if (NILP (current_kboard->Vprefix_arg)) | |
1755 | Fundo_boundary (); | |
1756 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 GM |
1757 | |
1758 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1759 | /* Do not check display_hourglass_p here, because |
1760 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1761 | hourglass cursor anyway. |
1762 | But don't cancel the hourglass within a macro | |
1763 | just because a command in the macro finishes. */ | |
1764 | if (NILP (Vexecuting_macro)) | |
0af912f0 | 1765 | unbind_to (scount, Qnil); |
d0c48478 | 1766 | #endif |
0af912f0 | 1767 | } |
284f4730 | 1768 | } |
a764a753 | 1769 | directly_done: ; |
75045dcb | 1770 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1771 | |
84ee6048 RS |
1772 | /* Note that the value cell will never directly contain nil |
1773 | if the symbol is a local variable. */ | |
1774 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1775 | safe_run_hooks (Qpost_command_hook); | |
1776 | ||
8f12e41d GM |
1777 | /* If displaying a message, resize the echo area window to fit |
1778 | that message's size exactly. */ | |
1779 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1780 | resize_echo_area_exactly (); |
8f12e41d | 1781 | |
84ee6048 RS |
1782 | if (!NILP (Vdeferred_action_list)) |
1783 | safe_run_hooks (Qdeferred_action_function); | |
1784 | ||
1785 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1786 | { | |
1787 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1788 | && NILP (Vunread_input_method_events) |
1789 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1790 | && NILP (Vexecuting_macro) |
1791 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1792 | safe_run_hooks (Qpost_command_idle_hook); | |
1793 | } | |
1794 | ||
284f4730 | 1795 | /* If there is a prefix argument, |
6c7178b9 KH |
1796 | 1) We don't want Vlast_command to be ``universal-argument'' |
1797 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1798 | 2) we want to leave echoing on so that the prefix will be |
1799 | echoed as part of this key sequence, so don't call | |
1800 | cancel_echoing, and | |
1801 | 3) we want to leave this_command_key_count non-zero, so that | |
1802 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1803 | not echo it a second time. |
1804 | ||
1805 | If the command didn't actually create a prefix arg, | |
1806 | but is merely a frame event that is transparent to prefix args, | |
1807 | then the above doesn't apply. */ | |
1808 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1809 | { |
d5eecefb RS |
1810 | current_kboard->Vlast_command = Vthis_command; |
1811 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1812 | cancel_echoing (); |
1813 | this_command_key_count = 0; | |
63020c46 | 1814 | this_command_key_count_reset = 0; |
6321824f | 1815 | this_single_command_key_start = 0; |
284f4730 | 1816 | } |
86e5706b | 1817 | |
88ce066e | 1818 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1819 | { |
1820 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1821 | { | |
2e1a49ad SM |
1822 | /* We could also call `deactivate'mark'. */ |
1823 | if (EQ (Vtransient_mark_mode, Qlambda)) | |
1824 | Vtransient_mark_mode = Qnil; | |
1825 | else | |
1826 | { | |
1827 | current_buffer->mark_active = Qnil; | |
1828 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1829 | } | |
86e5706b RS |
1830 | } |
1831 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1832 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1833 | } | |
ff4b06d3 KH |
1834 | |
1835 | finalize: | |
adf5cb9c KH |
1836 | |
1837 | if (current_buffer == prev_buffer | |
1838 | && last_point_position != PT | |
1839 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1840 | && NILP (Vglobal_disable_point_adjustment) |
1841 | && !already_adjusted) | |
2a026b04 | 1842 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1843 | |
ff4b06d3 KH |
1844 | /* Install chars successfully executed in kbd macro. */ |
1845 | ||
d8bcf58e KH |
1846 | if (!NILP (current_kboard->defining_kbd_macro) |
1847 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1848 | finalize_kbd_macro_chars (); |
1849 | ||
c5fdd383 | 1850 | #ifdef MULTI_KBOARD |
604ccd1d | 1851 | if (!was_locked) |
1e8bd3da | 1852 | any_kboard_state (); |
ff4b06d3 | 1853 | #endif |
284f4730 JB |
1854 | } |
1855 | } | |
1c9784c9 | 1856 | |
adf5cb9c KH |
1857 | extern Lisp_Object Qcomposition, Qdisplay; |
1858 | ||
1859 | /* Adjust point to a boundary of a region that has such a property | |
1860 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1861 | `composition', `display' and `invisible' properties. |
1862 | LAST_PT is the last position of point. */ | |
adf5cb9c | 1863 | |
14e40288 SM |
1864 | extern Lisp_Object Qafter_string, Qbefore_string; |
1865 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
1866 | ||
adf5cb9c | 1867 | static void |
2a026b04 | 1868 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 1869 | int last_pt; |
2a026b04 | 1870 | int modified; |
adf5cb9c | 1871 | { |
7e16ef60 SM |
1872 | int beg, end; |
1873 | Lisp_Object val, overlay, tmp; | |
1874 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 1875 | int orig_pt = PT; |
adf5cb9c | 1876 | |
0bbdffbd SM |
1877 | /* FIXME: cycling is probably not necessary because these properties |
1878 | can't be usefully combined anyway. */ | |
7e16ef60 | 1879 | while (check_composition || check_display || check_invisible) |
adf5cb9c KH |
1880 | { |
1881 | if (check_composition | |
1882 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1883 | && get_property_and_range (PT, Qcomposition, &val, &beg, &end, Qnil) |
1884 | && COMPOSITION_VALID_P (beg, end, val) | |
1885 | && beg < PT /* && end > PT <- It's always the case. */ | |
1886 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 1887 | { |
14e40288 | 1888 | xassert (end > PT); |
7e16ef60 | 1889 | SET_PT (PT < last_pt ? beg : end); |
14e40288 | 1890 | check_display = check_invisible = 1; |
adf5cb9c KH |
1891 | } |
1892 | check_composition = 0; | |
1893 | if (check_display | |
1894 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1895 | && !NILP (val = get_char_property_and_overlay |
1896 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 1897 | && display_prop_intangible_p (val) |
7e16ef60 SM |
1898 | && (!OVERLAYP (overlay) |
1899 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
1900 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
1901 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
14e40288 | 1902 | && beg < PT) /* && end > PT <- It's always the case. */ |
adf5cb9c | 1903 | { |
14e40288 | 1904 | xassert (end > PT); |
7e16ef60 | 1905 | SET_PT (PT < last_pt ? beg : end); |
14e40288 | 1906 | check_composition = check_invisible = 1; |
adf5cb9c KH |
1907 | } |
1908 | check_display = 0; | |
14e40288 | 1909 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 1910 | { |
14e40288 SM |
1911 | int inv, ellipsis = 0; |
1912 | beg = end = PT; | |
1913 | ||
1914 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
1915 | while (end < ZV | |
1916 | && !NILP (val = get_char_property_and_overlay | |
1917 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
1918 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1919 | { | |
1920 | ellipsis = ellipsis || inv > 1 | |
1921 | || (OVERLAYP (overlay) | |
1922 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1923 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1924 | tmp = Fnext_single_char_property_change | |
1925 | (make_number (end), Qinvisible, Qnil, Qnil); | |
1926 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
1927 | } | |
1928 | while (beg > BEGV | |
1929 | && !NILP (val = get_char_property_and_overlay | |
1930 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
1931 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1932 | { | |
1933 | ellipsis = ellipsis || inv > 1 | |
1934 | || (OVERLAYP (overlay) | |
1935 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1936 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1937 | tmp = Fprevious_single_char_property_change | |
1938 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
1939 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
1940 | } | |
c60ee5e7 | 1941 | |
14e40288 SM |
1942 | /* Move away from the inside area. */ |
1943 | if (beg < PT && end > PT) | |
1944 | { | |
0bbdffbd SM |
1945 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
1946 | /* We haven't moved yet (so we don't need to fear | |
1947 | infinite-looping) and we were outside the range | |
1948 | before (so either end of the range still corresponds | |
1949 | to a move in the right direction): pretend we moved | |
1950 | less than we actually did, so that we still have | |
1951 | more freedom below in choosing which end of the range | |
1952 | to go to. */ | |
9465a86c | 1953 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
1954 | /* We either have moved already or the last point |
1955 | was already in the range: we don't get to choose | |
1956 | which end of the range we have to go to. */ | |
1957 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
1958 | check_composition = check_display = 1; |
1959 | } | |
1960 | xassert (PT == beg || PT == end); | |
2a026b04 KH |
1961 | /* Pretend the area doesn't exist if the buffer is not |
1962 | modified. */ | |
1963 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
1964 | { |
1965 | if (last_pt == beg && PT == end && end < ZV) | |
1966 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
1967 | else if (last_pt == end && PT == beg && beg > BEGV) | |
1968 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
1969 | else if (PT == ((PT < last_pt) ? beg : end)) | |
1970 | /* We've already moved as far as we can. Trying to go | |
1971 | to the other end would mean moving backwards and thus | |
1972 | could lead to an infinite loop. */ | |
1973 | ; | |
1974 | else if (val = get_pos_property (make_number (PT), | |
1975 | Qinvisible, Qnil), | |
1976 | TEXT_PROP_MEANS_INVISIBLE (val) | |
1977 | && (val = get_pos_property | |
1978 | (make_number (PT == beg ? end : beg), | |
1979 | Qinvisible, Qnil), | |
1980 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
1981 | (check_composition = check_display = 1, | |
1982 | SET_PT (PT == beg ? end : beg)); | |
1983 | } | |
7e16ef60 SM |
1984 | } |
1985 | check_invisible = 0; | |
adf5cb9c KH |
1986 | } |
1987 | } | |
1988 | ||
0bc3db2b RS |
1989 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1990 | ||
1991 | static Lisp_Object | |
1992 | safe_run_hooks_1 (hook) | |
1993 | Lisp_Object hook; | |
1994 | { | |
1995 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1996 | } | |
1997 | ||
1998 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1999 | ||
2000 | static Lisp_Object | |
2001 | safe_run_hooks_error (data) | |
2002 | Lisp_Object data; | |
2003 | { | |
adec392e SM |
2004 | Lisp_Object args[3]; |
2005 | args[0] = build_string ("Error in %s: %s"); | |
2006 | args[1] = Vinhibit_quit; | |
2007 | args[2] = data; | |
2008 | Fmessage (3, args); | |
30690496 | 2009 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2010 | } |
2011 | ||
1c9784c9 KH |
2012 | /* If we get an error while running the hook, cause the hook variable |
2013 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2014 | to mysteriously evaporate. */ | |
0bc3db2b | 2015 | |
68f297c5 | 2016 | void |
1c9784c9 | 2017 | safe_run_hooks (hook) |
a98ea3f9 | 2018 | Lisp_Object hook; |
1c9784c9 | 2019 | { |
aed13378 | 2020 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2021 | specbind (Qinhibit_quit, hook); |
2022 | ||
e702932d | 2023 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2024 | |
2025 | unbind_to (count, Qnil); | |
2026 | } | |
8a9f5d3c | 2027 | |
284f4730 | 2028 | \f |
8a9f5d3c GM |
2029 | /* Number of seconds between polling for input. This is a Lisp |
2030 | variable that can be bound. */ | |
2031 | ||
31ade731 | 2032 | EMACS_INT polling_period; |
284f4730 | 2033 | |
eb8c3be9 | 2034 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2035 | |
284f4730 JB |
2036 | int poll_suppress_count; |
2037 | ||
8a9f5d3c GM |
2038 | /* Asynchronous timer for polling. */ |
2039 | ||
2040 | struct atimer *poll_timer; | |
2041 | ||
284f4730 | 2042 | |
36922b18 RS |
2043 | #ifdef POLL_FOR_INPUT |
2044 | ||
8a9f5d3c GM |
2045 | /* Poll for input, so what we catch a C-g if it comes in. This |
2046 | function is called from x_make_frame_visible, see comment | |
2047 | there. */ | |
284f4730 | 2048 | |
8a9f5d3c GM |
2049 | void |
2050 | poll_for_input_1 () | |
284f4730 | 2051 | { |
9ac0d9e0 JB |
2052 | if (interrupt_input_blocked == 0 |
2053 | && !waiting_for_input) | |
2054 | read_avail_input (0); | |
284f4730 JB |
2055 | } |
2056 | ||
8a9f5d3c GM |
2057 | /* Timer callback function for poll_timer. TIMER is equal to |
2058 | poll_timer. */ | |
2059 | ||
2060 | void | |
2061 | poll_for_input (timer) | |
2062 | struct atimer *timer; | |
2063 | { | |
2064 | if (poll_suppress_count == 0) | |
2065 | poll_for_input_1 (); | |
2066 | } | |
2067 | ||
2068 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2069 | |
2070 | /* Begin signals to poll for input, if they are appropriate. | |
2071 | This function is called unconditionally from various places. */ | |
2072 | ||
07a59269 | 2073 | void |
284f4730 JB |
2074 | start_polling () |
2075 | { | |
2076 | #ifdef POLL_FOR_INPUT | |
34f04431 | 2077 | if (read_socket_hook && !interrupt_input) |
284f4730 | 2078 | { |
8a9f5d3c GM |
2079 | /* Turn alarm handling on unconditionally. It might have |
2080 | been turned off in process.c. */ | |
2081 | turn_on_atimers (1); | |
c60ee5e7 | 2082 | |
8a9f5d3c GM |
2083 | /* If poll timer doesn't exist, are we need one with |
2084 | a different interval, start a new one. */ | |
2085 | if (poll_timer == NULL | |
2086 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2087 | { |
8a9f5d3c GM |
2088 | EMACS_TIME interval; |
2089 | ||
2090 | if (poll_timer) | |
2091 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2092 | |
8a9f5d3c GM |
2093 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2094 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2095 | poll_for_input, NULL); | |
284f4730 | 2096 | } |
8a9f5d3c GM |
2097 | |
2098 | /* Let the timer's callback function poll for input | |
2099 | if this becomes zero. */ | |
2100 | --poll_suppress_count; | |
284f4730 JB |
2101 | } |
2102 | #endif | |
2103 | } | |
2104 | ||
1d3195db RS |
2105 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2106 | ||
2107 | int | |
2108 | input_polling_used () | |
2109 | { | |
2110 | #ifdef POLL_FOR_INPUT | |
2111 | return read_socket_hook && !interrupt_input; | |
2112 | #else | |
2113 | return 0; | |
2114 | #endif | |
2115 | } | |
2116 | ||
284f4730 JB |
2117 | /* Turn off polling. */ |
2118 | ||
07a59269 | 2119 | void |
284f4730 JB |
2120 | stop_polling () |
2121 | { | |
2122 | #ifdef POLL_FOR_INPUT | |
34f04431 | 2123 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 2124 | ++poll_suppress_count; |
284f4730 JB |
2125 | #endif |
2126 | } | |
fe8aeef3 RS |
2127 | |
2128 | /* Set the value of poll_suppress_count to COUNT | |
2129 | and start or stop polling accordingly. */ | |
2130 | ||
2131 | void | |
2132 | set_poll_suppress_count (count) | |
2133 | int count; | |
2134 | { | |
2135 | #ifdef POLL_FOR_INPUT | |
2136 | if (count == 0 && poll_suppress_count != 0) | |
2137 | { | |
2138 | poll_suppress_count = 1; | |
2139 | start_polling (); | |
2140 | } | |
2141 | else if (count != 0 && poll_suppress_count == 0) | |
2142 | { | |
2143 | stop_polling (); | |
2144 | } | |
2145 | poll_suppress_count = count; | |
2146 | #endif | |
2147 | } | |
f4eef8b4 | 2148 | |
d0a57728 RS |
2149 | /* Bind polling_period to a value at least N. |
2150 | But don't decrease it. */ | |
2151 | ||
07a59269 | 2152 | void |
f4eef8b4 RS |
2153 | bind_polling_period (n) |
2154 | int n; | |
2155 | { | |
2156 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2157 | int new = polling_period; |
2158 | ||
2159 | if (n > new) | |
2160 | new = n; | |
2161 | ||
6fe007f7 | 2162 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2163 | stop_polling (); |
d0a57728 RS |
2164 | specbind (Qpolling_period, make_number (new)); |
2165 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2166 | start_polling (); |
2167 | #endif | |
2168 | } | |
284f4730 | 2169 | \f |
6da3dd3a RS |
2170 | /* Apply the control modifier to CHARACTER. */ |
2171 | ||
faf5e407 JB |
2172 | int |
2173 | make_ctrl_char (c) | |
2174 | int c; | |
2175 | { | |
d205953b JB |
2176 | /* Save the upper bits here. */ |
2177 | int upper = c & ~0177; | |
2178 | ||
2179 | c &= 0177; | |
2180 | ||
2181 | /* Everything in the columns containing the upper-case letters | |
2182 | denotes a control character. */ | |
2183 | if (c >= 0100 && c < 0140) | |
2184 | { | |
2185 | int oc = c; | |
2186 | c &= ~0140; | |
2187 | /* Set the shift modifier for a control char | |
2188 | made from a shifted letter. But only for letters! */ | |
2189 | if (oc >= 'A' && oc <= 'Z') | |
2190 | c |= shift_modifier; | |
2191 | } | |
2192 | ||
2193 | /* The lower-case letters denote control characters too. */ | |
2194 | else if (c >= 'a' && c <= 'z') | |
2195 | c &= ~0140; | |
2196 | ||
2197 | /* Include the bits for control and shift | |
2198 | only if the basic ASCII code can't indicate them. */ | |
2199 | else if (c >= ' ') | |
2200 | c |= ctrl_modifier; | |
2201 | ||
2202 | /* Replace the high bits. */ | |
2203 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2204 | |
2205 | return c; | |
2206 | } | |
2207 | ||
d4e68eea GM |
2208 | /* Display help echo in the echo area. |
2209 | ||
8dfd92c9 GM |
2210 | HELP a string means display that string, HELP nil means clear the |
2211 | help echo. If HELP is a function, call it with OBJECT and POS as | |
2212 | arguments; the function should return a help string or nil for | |
2213 | none. For all other types of HELP evaluate it to obtain a string. | |
2214 | ||
2190735a GM |
2215 | WINDOW is the window in which the help was generated, if any. |
2216 | It is nil if not in a window. | |
2217 | ||
5b2ec2d0 GM |
2218 | If OBJECT is a buffer, POS is the position in the buffer where the |
2219 | `help-echo' text property was found. | |
2220 | ||
2221 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2222 | and POS is the position in the overlay's buffer under the mouse. | |
2223 | ||
2224 | If OBJECT is a string (an overlay string or a string displayed with | |
2225 | the `display' property). POS is the position in that string under | |
2226 | the mouse. | |
d4e68eea | 2227 | |
27fd22dc | 2228 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2229 | echo overwrites a keystroke echo currently displayed in the echo |
2230 | area. | |
2231 | ||
8dfd92c9 GM |
2232 | Note: this function may only be called with HELP nil or a string |
2233 | from X code running asynchronously. */ | |
d4e68eea | 2234 | |
31f84d03 | 2235 | void |
2190735a GM |
2236 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2237 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2238 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2239 | { |
8dfd92c9 | 2240 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2241 | { |
8dfd92c9 GM |
2242 | if (FUNCTIONP (help)) |
2243 | { | |
2190735a | 2244 | Lisp_Object args[4]; |
8dfd92c9 | 2245 | args[0] = help; |
2190735a GM |
2246 | args[1] = window; |
2247 | args[2] = object; | |
2248 | args[3] = pos; | |
1db0076e | 2249 | help = safe_call (4, args); |
8dfd92c9 GM |
2250 | } |
2251 | else | |
1db0076e | 2252 | help = safe_eval (help); |
c60ee5e7 | 2253 | |
8dfd92c9 | 2254 | if (!STRINGP (help)) |
d4e68eea | 2255 | return; |
31f84d03 SM |
2256 | } |
2257 | ||
8dfd92c9 | 2258 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2259 | { |
2260 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2261 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2262 | else if (/* Don't overwrite minibuffer contents. */ |
2263 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2264 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2265 | && (NILP (echo_message_buffer) |
2266 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2267 | /* Don't overwrite a prompt. */ |
2268 | && !cursor_in_echo_area) | |
2269 | { | |
8dfd92c9 | 2270 | if (STRINGP (help)) |
d4e68eea | 2271 | { |
331379bf | 2272 | int count = SPECPDL_INDEX (); |
f0c1cc56 GM |
2273 | |
2274 | if (!help_echo_showing_p) | |
2275 | Vpre_help_message = current_message (); | |
c60ee5e7 | 2276 | |
d4e68eea | 2277 | specbind (Qmessage_truncate_lines, Qt); |
d5db4077 | 2278 | message3_nolog (help, SBYTES (help), |
8dfd92c9 | 2279 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2280 | unbind_to (count, Qnil); |
2281 | } | |
f0c1cc56 GM |
2282 | else if (STRINGP (Vpre_help_message)) |
2283 | { | |
2284 | message3_nolog (Vpre_help_message, | |
d5db4077 | 2285 | SBYTES (Vpre_help_message), |
f0c1cc56 GM |
2286 | STRING_MULTIBYTE (Vpre_help_message)); |
2287 | Vpre_help_message = Qnil; | |
2288 | } | |
d4e68eea | 2289 | else |
f0c1cc56 | 2290 | message (0); |
d4e68eea | 2291 | } |
c60ee5e7 | 2292 | |
5295a500 | 2293 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2294 | } |
31f84d03 SM |
2295 | } |
2296 | ||
faf5e407 JB |
2297 | |
2298 | \f | |
284f4730 JB |
2299 | /* Input of single characters from keyboard */ |
2300 | ||
2301 | Lisp_Object print_help (); | |
2302 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2303 | static void record_char (); |
284f4730 | 2304 | |
c5fdd383 KH |
2305 | #ifdef MULTI_KBOARD |
2306 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2307 | #endif |
beecf6a1 | 2308 | |
184c3d81 RS |
2309 | #define STOP_POLLING \ |
2310 | do { if (! polling_stopped_here) stop_polling (); \ | |
2311 | polling_stopped_here = 1; } while (0) | |
2312 | ||
2313 | #define RESUME_POLLING \ | |
2314 | do { if (polling_stopped_here) start_polling (); \ | |
2315 | polling_stopped_here = 0; } while (0) | |
2316 | ||
284f4730 JB |
2317 | /* read a character from the keyboard; call the redisplay if needed */ |
2318 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2319 | -1 means do not do redisplay, but do do autosaving. | |
2320 | 1 means do both. */ | |
2321 | ||
7d6de002 RS |
2322 | /* The arguments MAPS and NMAPS are for menu prompting. |
2323 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2324 | ||
2325 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2326 | the first event of a key sequence (or not reading a key sequence). |
2327 | If PREV_EVENT is t, that is a "magic" value that says | |
2328 | not to run input methods, but in other respects to act as if | |
2329 | not reading a key sequence. | |
7d6de002 | 2330 | |
83d68044 | 2331 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2332 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2333 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2334 | |
2335 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2336 | |
284f4730 | 2337 | Lisp_Object |
7d6de002 | 2338 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2339 | int commandflag; |
7d6de002 RS |
2340 | int nmaps; |
2341 | Lisp_Object *maps; | |
2342 | Lisp_Object prev_event; | |
2343 | int *used_mouse_menu; | |
284f4730 | 2344 | { |
8c907a56 | 2345 | volatile Lisp_Object c; |
284f4730 | 2346 | int count; |
410d4de9 | 2347 | jmp_buf local_getcjmp; |
284f4730 | 2348 | jmp_buf save_jump; |
8c907a56 | 2349 | volatile int key_already_recorded = 0; |
017c7cb6 | 2350 | Lisp_Object tem, save; |
8c907a56 GM |
2351 | volatile Lisp_Object previous_echo_area_message; |
2352 | volatile Lisp_Object also_record; | |
2353 | volatile int reread; | |
d5eecefb | 2354 | struct gcpro gcpro1, gcpro2; |
fdbb67fe | 2355 | EMACS_TIME last_idle_start; |
184c3d81 | 2356 | int polling_stopped_here = 0; |
7c3bc944 | 2357 | |
e4fe371d | 2358 | also_record = Qnil; |
284f4730 | 2359 | |
22b94eeb | 2360 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2361 | before_command_key_count = this_command_key_count; |
2362 | before_command_echo_length = echo_length (); | |
22b94eeb | 2363 | #endif |
ef6661f7 | 2364 | c = Qnil; |
7ee32cda | 2365 | previous_echo_area_message = Qnil; |
71918b75 | 2366 | |
7ee32cda | 2367 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2368 | |
7f07d5ca RS |
2369 | retry: |
2370 | ||
7d18f9ae RS |
2371 | reread = 0; |
2372 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2373 | { |
7539e11f | 2374 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2375 | Vunread_post_input_method_events |
7539e11f | 2376 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2377 | |
2479e91e RS |
2378 | /* Undo what read_char_x_menu_prompt did when it unread |
2379 | additional keys returned by Fx_popup_menu. */ | |
2380 | if (CONSP (c) | |
7539e11f KR |
2381 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2382 | && NILP (XCDR (c))) | |
2383 | c = XCAR (c); | |
2479e91e | 2384 | |
7d18f9ae RS |
2385 | reread = 1; |
2386 | goto reread_first; | |
284f4730 JB |
2387 | } |
2388 | ||
86e5706b RS |
2389 | if (unread_command_char != -1) |
2390 | { | |
18cd2eeb | 2391 | XSETINT (c, unread_command_char); |
86e5706b RS |
2392 | unread_command_char = -1; |
2393 | ||
7d18f9ae RS |
2394 | reread = 1; |
2395 | goto reread_first; | |
2396 | } | |
2397 | ||
2398 | if (CONSP (Vunread_command_events)) | |
2399 | { | |
7539e11f KR |
2400 | c = XCAR (Vunread_command_events); |
2401 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2402 | |
2403 | /* Undo what read_char_x_menu_prompt did when it unread | |
2404 | additional keys returned by Fx_popup_menu. */ | |
2405 | if (CONSP (c) | |
f4e05d97 GM |
2406 | && EQ (XCDR (c), Qdisabled) |
2407 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2408 | c = XCAR (c); |
c60ee5e7 | 2409 | |
d17e49a8 GM |
2410 | /* If the queued event is something that used the mouse, |
2411 | set used_mouse_menu accordingly. */ | |
2412 | if (used_mouse_menu | |
2413 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2414 | *used_mouse_menu = 1; | |
c60ee5e7 | 2415 | |
7d18f9ae RS |
2416 | reread = 1; |
2417 | goto reread_for_input_method; | |
2418 | } | |
2419 | ||
2420 | if (CONSP (Vunread_input_method_events)) | |
2421 | { | |
7539e11f KR |
2422 | c = XCAR (Vunread_input_method_events); |
2423 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2424 | |
2425 | /* Undo what read_char_x_menu_prompt did when it unread | |
2426 | additional keys returned by Fx_popup_menu. */ | |
2427 | if (CONSP (c) | |
7539e11f KR |
2428 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2429 | && NILP (XCDR (c))) | |
2430 | c = XCAR (c); | |
7d18f9ae RS |
2431 | reread = 1; |
2432 | goto reread_for_input_method; | |
86e5706b RS |
2433 | } |
2434 | ||
63020c46 RS |
2435 | this_command_key_count_reset = 0; |
2436 | ||
284f4730 JB |
2437 | if (!NILP (Vexecuting_macro)) |
2438 | { | |
fce33686 JB |
2439 | /* We set this to Qmacro; since that's not a frame, nobody will |
2440 | try to switch frames on us, and the selected window will | |
2441 | remain unchanged. | |
2442 | ||
2443 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2444 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2445 | real event came from. Normally, a switch-frame event selects |
2446 | internal_last_event_frame after each command is read, but | |
2447 | events read from a macro should never cause a new frame to be | |
2448 | selected. */ | |
4c52b668 | 2449 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2450 | |
663258f2 JB |
2451 | /* Exit the macro if we are at the end. |
2452 | Also, some things replace the macro with t | |
2453 | to force an early exit. */ | |
2454 | if (EQ (Vexecuting_macro, Qt) | |
2455 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 2456 | { |
18cd2eeb | 2457 | XSETINT (c, -1); |
184c3d81 | 2458 | goto exit; |
284f4730 | 2459 | } |
df0f2ba1 | 2460 | |
284f4730 | 2461 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 2462 | if (STRINGP (Vexecuting_macro) |
86e5706b | 2463 | && (XINT (c) & 0x80)) |
bb9e9bed | 2464 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2465 | |
284f4730 JB |
2466 | executing_macro_index++; |
2467 | ||
2468 | goto from_macro; | |
2469 | } | |
2470 | ||
cd21b839 JB |
2471 | if (!NILP (unread_switch_frame)) |
2472 | { | |
2473 | c = unread_switch_frame; | |
2474 | unread_switch_frame = Qnil; | |
2475 | ||
2476 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2477 | again, so we do not set `reread'. */ |
f4255cd1 | 2478 | goto reread_first; |
cd21b839 JB |
2479 | } |
2480 | ||
adc1d5c8 | 2481 | /* if redisplay was requested */ |
6e4e64a8 RS |
2482 | if (commandflag >= 0) |
2483 | { | |
adc1d5c8 RS |
2484 | /* If there is pending input, process any events which are not |
2485 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2486 | if (input_pending |
2487 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2488 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2489 | |
adc1d5c8 RS |
2490 | /* Redisplay if no pending input. */ |
2491 | while (!input_pending) | |
2492 | { | |
5295a500 | 2493 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2494 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2495 | else |
2496 | redisplay (); | |
adc1d5c8 RS |
2497 | |
2498 | if (!input_pending) | |
2499 | /* Normal case: no input arrived during redisplay. */ | |
2500 | break; | |
2501 | ||
2502 | /* Input arrived and pre-empted redisplay. | |
2503 | Process any events which are not user-visible. */ | |
2504 | swallow_events (0); | |
2505 | /* If that cleared input_pending, try again to redisplay. */ | |
2506 | } | |
6e4e64a8 | 2507 | } |
e9bf89a0 | 2508 | |
59a84f8e | 2509 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2510 | |
59a84f8e GM |
2511 | The code in 20.x for the condition was |
2512 | ||
2513 | 1. echo_area_glyphs && *echo_area_glyphs | |
2514 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2515 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2516 | ||
2517 | (1) means there's a current message displayed | |
c60ee5e7 | 2518 | |
59a84f8e GM |
2519 | (2) means it's not the message from echoing from the current |
2520 | kboard. | |
c60ee5e7 | 2521 | |
59a84f8e GM |
2522 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2523 | is set to a non-null value. This is done in read_char and it is | |
2524 | set to echo_area_glyphs after a call to echo_char. That means | |
2525 | ok_to_echo_at_next_pause is either null or | |
2526 | current_kboard->echobuf with the appropriate current_kboard at | |
2527 | that time. | |
2528 | ||
2529 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2530 | must be either null, or the current message isn't from echoing at | |
2531 | all, or it's from echoing from a different kboard than the | |
2532 | current one. */ | |
c60ee5e7 | 2533 | |
27fd22dc | 2534 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2535 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2536 | && (/* And it's either not from echoing. */ |
2537 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2538 | /* Or it's an echo from a different kboard. */ | |
2539 | || echo_kboard != current_kboard | |
2540 | /* Or we explicitly allow overwriting whatever there is. */ | |
2541 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2542 | cancel_echoing (); |
410d4de9 | 2543 | else |
410d4de9 | 2544 | echo_dash (); |
c60ee5e7 | 2545 | |
410d4de9 RS |
2546 | /* Try reading a character via menu prompting in the minibuf. |
2547 | Try this before the sit-for, because the sit-for | |
2548 | would do the wrong thing if we are supposed to do | |
2549 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2550 | after a mouse event so don't try a minibuf menu. */ | |
2551 | c = Qnil; | |
2552 | if (nmaps > 0 && INTERACTIVE | |
2553 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2554 | /* Don't bring up a menu if we already have another event. */ | |
2555 | && NILP (Vunread_command_events) | |
2556 | && unread_command_char < 0 | |
4ec4ed6a | 2557 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2558 | { |
2559 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2560 | if (! NILP (c)) | |
2561 | { | |
2562 | key_already_recorded = 1; | |
2563 | goto non_reread_1; | |
2564 | } | |
2565 | } | |
284f4730 | 2566 | |
410d4de9 RS |
2567 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2568 | We will do that below, temporarily for short sections of code, | |
2569 | when appropriate. local_getcjmp must be in effect | |
2570 | around any call to sit_for or kbd_buffer_get_event; | |
2571 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2572 | |
410d4de9 | 2573 | if (_setjmp (local_getcjmp)) |
284f4730 | 2574 | { |
18cd2eeb | 2575 | XSETINT (c, quit_char); |
788f89eb | 2576 | internal_last_event_frame = selected_frame; |
4c52b668 | 2577 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2578 | /* If we report the quit char as an event, |
2579 | don't do so more than once. */ | |
2580 | if (!NILP (Vinhibit_quit)) | |
2581 | Vquit_flag = Qnil; | |
284f4730 | 2582 | |
c5fdd383 | 2583 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2584 | { |
788f89eb | 2585 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2586 | if (kb != current_kboard) |
df0f2ba1 | 2587 | { |
f3fbd155 | 2588 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2589 | /* We shouldn't get here if we were in single-kboard mode! */ |
2590 | if (single_kboard) | |
df0f2ba1 | 2591 | abort (); |
f3fbd155 KR |
2592 | if (CONSP (link)) |
2593 | { | |
2594 | while (CONSP (XCDR (link))) | |
2595 | link = XCDR (link); | |
2596 | if (!NILP (XCDR (link))) | |
2597 | abort (); | |
2598 | } | |
2599 | if (!CONSP (link)) | |
2600 | kb->kbd_queue = Fcons (c, Qnil); | |
2601 | else | |
2602 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2603 | kb->kbd_queue_has_data = 1; |
2604 | current_kboard = kb; | |
ef6661f7 RS |
2605 | /* This is going to exit from read_char |
2606 | so we had better get rid of this frame's stuff. */ | |
2607 | UNGCPRO; | |
c5fdd383 | 2608 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2609 | } |
2610 | } | |
2611 | #endif | |
284f4730 JB |
2612 | goto non_reread; |
2613 | } | |
2614 | ||
d9d4c147 KH |
2615 | timer_start_idle (); |
2616 | ||
284f4730 JB |
2617 | /* If in middle of key sequence and minibuffer not active, |
2618 | start echoing if enough time elapses. */ | |
410d4de9 | 2619 | |
c60ee5e7 | 2620 | if (minibuf_level == 0 |
7ee32cda | 2621 | && !current_kboard->immediate_echo |
6c6083a9 | 2622 | && this_command_key_count > 0 |
27203ead | 2623 | && ! noninteractive |
f2647d04 DL |
2624 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2625 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2626 | && (/* No message. */ |
2627 | NILP (echo_area_buffer[0]) | |
2628 | /* Or empty message. */ | |
2629 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2630 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2631 | /* Or already echoing from same kboard. */ | |
2632 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2633 | /* Or not echoing before and echoing allowed. */ | |
2634 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2635 | { |
2636 | Lisp_Object tem0; | |
c60ee5e7 | 2637 | |
7d6de002 RS |
2638 | /* After a mouse event, start echoing right away. |
2639 | This is because we are probably about to display a menu, | |
2640 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2641 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2642 | echo_now (); |
7d6de002 RS |
2643 | else |
2644 | { | |
39aab679 DL |
2645 | int sec, usec; |
2646 | double duration = extract_float (Vecho_keystrokes); | |
2647 | sec = (int) duration; | |
15fa88ab | 2648 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2649 | save_getcjmp (save_jump); |
2650 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2651 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2652 | restore_getcjmp (save_jump); |
303b5b3f RS |
2653 | if (EQ (tem0, Qt) |
2654 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2655 | echo_now (); |
7d6de002 | 2656 | } |
284f4730 JB |
2657 | } |
2658 | ||
410d4de9 | 2659 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2660 | |
2661 | if (commandflag != 0 | |
2662 | && auto_save_interval > 0 | |
c43b1734 | 2663 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2664 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2665 | { |
284f4730 | 2666 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2667 | /* Hooks can actually change some buffers in auto save. */ |
2668 | redisplay (); | |
284f4730 JB |
2669 | } |
2670 | ||
8150596a | 2671 | /* Try reading using an X menu. |
24597608 RS |
2672 | This is never confused with reading using the minibuf |
2673 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2674 | does not pass on any keymaps. */ | |
410d4de9 | 2675 | |
24597608 | 2676 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2677 | && !NILP (prev_event) |
2678 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2679 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2680 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2681 | /* Don't bring up a menu if we already have another event. */ |
2682 | && NILP (Vunread_command_events) | |
b8556aee | 2683 | && unread_command_char < 0) |
8eb4d8ef RS |
2684 | { |
2685 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2686 | ||
2687 | /* Now that we have read an event, Emacs is not idle. */ | |
2688 | timer_stop_idle (); | |
2689 | ||
184c3d81 | 2690 | goto exit; |
8eb4d8ef | 2691 | } |
7d6de002 | 2692 | |
410d4de9 RS |
2693 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2694 | ||
26c1639e | 2695 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2696 | { |
2697 | int delay_level, buffer_size; | |
2698 | ||
410d4de9 RS |
2699 | /* Slow down auto saves logarithmically in size of current buffer, |
2700 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2701 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2702 | last_non_minibuf_size = Z - BEG; | |
2703 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2704 | delay_level = 0; | |
2705 | while (buffer_size > 64) | |
2706 | delay_level++, buffer_size -= buffer_size >> 2; | |
2707 | if (delay_level < 4) delay_level = 4; | |
2708 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2709 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2710 | ||
2711 | /* Auto save if enough time goes by without input. */ | |
2712 | if (commandflag != 0 | |
c43b1734 | 2713 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2714 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2715 | && XINT (Vauto_save_timeout) > 0) |
2716 | { | |
2717 | Lisp_Object tem0; | |
410d4de9 RS |
2718 | |
2719 | save_getcjmp (save_jump); | |
2720 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2721 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2722 | 0, 1, 1, 0); |
410d4de9 RS |
2723 | restore_getcjmp (save_jump); |
2724 | ||
303b5b3f RS |
2725 | if (EQ (tem0, Qt) |
2726 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2727 | { |
7d6de002 | 2728 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2729 | |
2730 | /* If we have auto-saved and there is still no input | |
2731 | available, garbage collect if there has been enough | |
2732 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2733 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2734 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2735 | Fgarbage_collect (); |
410d4de9 | 2736 | |
ef8fd672 | 2737 | redisplay (); |
7d6de002 RS |
2738 | } |
2739 | } | |
2740 | } | |
284f4730 | 2741 | |
303b5b3f RS |
2742 | /* If this has become non-nil here, it has been set by a timer |
2743 | or sentinel or filter. */ | |
2744 | if (CONSP (Vunread_command_events)) | |
2745 | { | |
7539e11f KR |
2746 | c = XCAR (Vunread_command_events); |
2747 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2748 | } |
2749 | ||
410d4de9 RS |
2750 | /* Read something from current KBOARD's side queue, if possible. */ |
2751 | ||
beecf6a1 | 2752 | if (NILP (c)) |
1e12dd87 | 2753 | { |
c5fdd383 | 2754 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2755 | { |
c5fdd383 | 2756 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2757 | abort (); |
7539e11f | 2758 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2759 | current_kboard->kbd_queue |
7539e11f | 2760 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2761 | if (NILP (current_kboard->kbd_queue)) |
2762 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2763 | input_pending = readable_events (0); |
4c52b668 KH |
2764 | if (EVENT_HAS_PARAMETERS (c) |
2765 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2766 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2767 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2768 | } |
1e8bd3da RS |
2769 | } |
2770 | ||
c5fdd383 | 2771 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2772 | /* If current_kboard's side queue is empty check the other kboards. |
2773 | If one of them has data that we have not yet seen here, | |
2774 | switch to it and process the data waiting for it. | |
2775 | ||
2776 | Note: if the events queued up for another kboard | |
2777 | have already been seen here, and therefore are not a complete command, | |
2778 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2779 | That's to avoid an infinite loop switching between kboards here. */ | |
2780 | if (NILP (c) && !single_kboard) | |
2781 | { | |
2782 | KBOARD *kb; | |
2783 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2784 | if (kb->kbd_queue_has_data) | |
2785 | { | |
2786 | current_kboard = kb; | |
ef6661f7 RS |
2787 | /* This is going to exit from read_char |
2788 | so we had better get rid of this frame's stuff. */ | |
2789 | UNGCPRO; | |
1e8bd3da RS |
2790 | longjmp (wrong_kboard_jmpbuf, 1); |
2791 | } | |
2792 | } | |
df0f2ba1 KH |
2793 | #endif |
2794 | ||
410d4de9 RS |
2795 | wrong_kboard: |
2796 | ||
184c3d81 | 2797 | STOP_POLLING; |
410d4de9 | 2798 | |
1e8bd3da RS |
2799 | /* Finally, we read from the main queue, |
2800 | and if that gives us something we can't use yet, we put it on the | |
2801 | appropriate side queue and try again. */ | |
410d4de9 | 2802 | |
1e8bd3da RS |
2803 | if (NILP (c)) |
2804 | { | |
2805 | KBOARD *kb; | |
2806 | ||
1e8bd3da | 2807 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2808 | save_getcjmp (save_jump); |
2809 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2810 | timer_start_idle (); |
83d68044 | 2811 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2812 | restore_getcjmp (save_jump); |
2813 | ||
c5fdd383 | 2814 | #ifdef MULTI_KBOARD |
410d4de9 | 2815 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2816 | { |
f3fbd155 KR |
2817 | Lisp_Object link = kb->kbd_queue; |
2818 | if (CONSP (link)) | |
2819 | { | |
2820 | while (CONSP (XCDR (link))) | |
2821 | link = XCDR (link); | |
2822 | if (!NILP (XCDR (link))) | |
2823 | abort (); | |
2824 | } | |
2825 | if (!CONSP (link)) | |
2826 | kb->kbd_queue = Fcons (c, Qnil); | |
2827 | else | |
2828 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2829 | kb->kbd_queue_has_data = 1; |
46b84797 | 2830 | c = Qnil; |
1e8bd3da RS |
2831 | if (single_kboard) |
2832 | goto wrong_kboard; | |
2833 | current_kboard = kb; | |
ef6661f7 RS |
2834 | /* This is going to exit from read_char |
2835 | so we had better get rid of this frame's stuff. */ | |
2836 | UNGCPRO; | |
1e8bd3da | 2837 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2838 | } |
1e8bd3da | 2839 | #endif |
beecf6a1 | 2840 | } |
1e8bd3da | 2841 | |
284f4730 | 2842 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2843 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2844 | Fkill_emacs (make_number (1)); |
2845 | ||
8c18cbfb | 2846 | if (INTEGERP (c)) |
80645119 JB |
2847 | { |
2848 | /* Add in any extra modifiers, where appropriate. */ | |
2849 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2850 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2851 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2852 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2853 | |
2854 | /* Transfer any other modifier bits directly from | |
2855 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2856 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2857 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2858 | } |
9fa4395d | 2859 | |
284f4730 JB |
2860 | non_reread: |
2861 | ||
fdbb67fe GM |
2862 | /* Record the last idle start time so that we can reset it |
2863 | should the next event read be a help-echo. */ | |
2864 | last_idle_start = timer_idleness_start_time; | |
2fb9049e | 2865 | timer_stop_idle (); |
184c3d81 | 2866 | RESUME_POLLING; |
284f4730 | 2867 | |
410d4de9 RS |
2868 | if (NILP (c)) |
2869 | { | |
2870 | if (commandflag >= 0 | |
4ec4ed6a | 2871 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2872 | redisplay (); |
2873 | ||
2874 | goto wrong_kboard; | |
2875 | } | |
2876 | ||
2877 | non_reread_1: | |
2878 | ||
dfd11da7 | 2879 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2880 | so don't show them to the user. |
2881 | Also, don't record a key if we already did. */ | |
2882 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 2883 | goto exit; |
a1341f75 | 2884 | |
7f07d5ca RS |
2885 | /* Process special events within read_char |
2886 | and loop around to read another event. */ | |
017c7cb6 RS |
2887 | save = Vquit_flag; |
2888 | Vquit_flag = Qnil; | |
02067692 | 2889 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2890 | Vquit_flag = save; |
7f07d5ca RS |
2891 | |
2892 | if (!NILP (tem)) | |
2893 | { | |
ba8dfba8 RS |
2894 | int was_locked = single_kboard; |
2895 | ||
7f07d5ca | 2896 | last_input_char = c; |
158f7532 | 2897 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2898 | |
5d12f14d EZ |
2899 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2900 | /* We stopped being idle for this event; undo that. This | |
2901 | prevents automatic window selection (under | |
0b9a1d3d | 2902 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d EZ |
2903 | example banishing the mouse under mouse-avoidance-mode. */ |
2904 | timer_idleness_start_time = last_idle_start; | |
2905 | ||
ba8dfba8 RS |
2906 | /* Resume allowing input from any kboard, if that was true before. */ |
2907 | if (!was_locked) | |
2908 | any_kboard_state (); | |
2909 | ||
7f07d5ca RS |
2910 | goto retry; |
2911 | } | |
2912 | ||
284f4730 | 2913 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2914 | if (INTEGERP (c)) |
284f4730 JB |
2915 | { |
2916 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2917 | if (XINT (c) == -1) |
184c3d81 | 2918 | goto exit; |
284f4730 | 2919 | |
301738ed | 2920 | if ((STRINGP (Vkeyboard_translate_table) |
d5db4077 | 2921 | && SCHARS (Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) |
301738ed RS |
2922 | || (VECTORP (Vkeyboard_translate_table) |
2923 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2924 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
5e3cb80d | 2925 | && CHAR_VALID_P (XINT (c), 0))) |
f9414d62 RS |
2926 | { |
2927 | Lisp_Object d; | |
2928 | d = Faref (Vkeyboard_translate_table, c); | |
2929 | /* nil in keyboard-translate-table means no translation. */ | |
2930 | if (!NILP (d)) | |
2931 | c = d; | |
2932 | } | |
284f4730 JB |
2933 | } |
2934 | ||
e4fe371d RS |
2935 | /* If this event is a mouse click in the menu bar, |
2936 | return just menu-bar for now. Modify the mouse click event | |
2937 | so we won't do this twice, then queue it up. */ | |
2938 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2939 | && CONSP (XCDR (c)) |
e4fe371d | 2940 | && CONSP (EVENT_START (c)) |
7539e11f | 2941 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2942 | { |
e4fe371d | 2943 | Lisp_Object posn; |
284f4730 | 2944 | |
e4fe371d RS |
2945 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2946 | /* Handle menu-bar events: | |
2947 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2948 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2949 | { |
2950 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
f3fbd155 | 2951 | POSN_BUFFER_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2952 | |
e4fe371d RS |
2953 | also_record = c; |
2954 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2955 | c = posn; | |
284f4730 | 2956 | } |
284f4730 JB |
2957 | } |
2958 | ||
7d18f9ae RS |
2959 | /* Store these characters into recent_keys, the dribble file if any, |
2960 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2961 | record_char (c); |
2962 | if (! NILP (also_record)) | |
2963 | record_char (also_record); | |
51172b6d | 2964 | |
d5eecefb RS |
2965 | /* Wipe the echo area. |
2966 | But first, if we are about to use an input method, | |
2967 | save the echo area contents for it to refer to. */ | |
2968 | if (INTEGERP (c) | |
2969 | && ! NILP (Vinput_method_function) | |
2970 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2971 | && (unsigned) XINT (c) != 127 |
2972 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2973 | { |
2974 | previous_echo_area_message = Fcurrent_message (); | |
2975 | Vinput_method_previous_message = previous_echo_area_message; | |
2976 | } | |
d5eecefb | 2977 | |
1172eb8d GM |
2978 | /* Now wipe the echo area, except for help events which do their |
2979 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2980 | if (!CONSP (c) |
2981 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2982 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2983 | { |
2984 | if (!NILP (echo_area_buffer[0])) | |
2985 | safe_run_hooks (Qecho_area_clear_hook); | |
2986 | clear_message (1, 0); | |
2987 | } | |
d5eecefb | 2988 | |
7d18f9ae | 2989 | reread_for_input_method: |
284f4730 | 2990 | from_macro: |
7d18f9ae | 2991 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2992 | if (INTEGERP (c) |
2993 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2994 | /* Don't run the input method within a key sequence, |
2995 | after the first event of the key sequence. */ | |
2996 | && NILP (prev_event) | |
d5eecefb | 2997 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2998 | && (unsigned) XINT (c) != 127 |
2999 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3000 | { |
c60ee5e7 | 3001 | Lisp_Object keys; |
63020c46 | 3002 | int key_count, key_count_reset; |
d5eecefb | 3003 | struct gcpro gcpro1; |
aed13378 | 3004 | int count = SPECPDL_INDEX (); |
d5eecefb | 3005 | |
6e5742a0 RS |
3006 | /* Save the echo status. */ |
3007 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3008 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
3009 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3010 | ||
22b94eeb | 3011 | #if 0 |
6e5742a0 RS |
3012 | if (before_command_restore_flag) |
3013 | { | |
3014 | this_command_key_count = before_command_key_count_1; | |
3015 | if (this_command_key_count < this_single_command_key_start) | |
3016 | this_single_command_key_start = this_command_key_count; | |
3017 | echo_truncate (before_command_echo_length_1); | |
3018 | before_command_restore_flag = 0; | |
3019 | } | |
22b94eeb | 3020 | #endif |
6e5742a0 RS |
3021 | |
3022 | /* Save the this_command_keys status. */ | |
3023 | key_count = this_command_key_count; | |
63020c46 | 3024 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3025 | |
3026 | if (key_count > 0) | |
3027 | keys = Fcopy_sequence (this_command_keys); | |
3028 | else | |
3029 | keys = Qnil; | |
d5eecefb | 3030 | GCPRO1 (keys); |
6e5742a0 RS |
3031 | |
3032 | /* Clear out this_command_keys. */ | |
3033 | this_command_key_count = 0; | |
63020c46 | 3034 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3035 | |
3036 | /* Now wipe the echo area. */ | |
985f9f66 | 3037 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3038 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3039 | clear_message (1, 0); |
6e5742a0 RS |
3040 | echo_truncate (0); |
3041 | ||
b638f328 RS |
3042 | /* If we are not reading a key sequence, |
3043 | never use the echo area. */ | |
3044 | if (maps == 0) | |
3045 | { | |
b638f328 RS |
3046 | specbind (Qinput_method_use_echo_area, Qt); |
3047 | } | |
3048 | ||
6e5742a0 | 3049 | /* Call the input method. */ |
d5eecefb | 3050 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3051 | |
3052 | tem = unbind_to (count, tem); | |
3053 | ||
6e5742a0 RS |
3054 | /* Restore the saved echoing state |
3055 | and this_command_keys state. */ | |
3056 | this_command_key_count = key_count; | |
63020c46 | 3057 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3058 | if (key_count > 0) |
3059 | this_command_keys = keys; | |
3060 | ||
3061 | cancel_echoing (); | |
3062 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
3063 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
3064 | if (saved_immediate_echo) | |
3065 | echo_now (); | |
3066 | ||
d5eecefb | 3067 | UNGCPRO; |
6e5742a0 | 3068 | |
d5eecefb RS |
3069 | /* The input method can return no events. */ |
3070 | if (! CONSP (tem)) | |
7d18f9ae | 3071 | { |
d5eecefb | 3072 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3073 | if (! NILP (previous_echo_area_message)) |
3074 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3075 | goto retry; |
7d18f9ae | 3076 | } |
d5eecefb | 3077 | /* It returned one event or more. */ |
7539e11f | 3078 | c = XCAR (tem); |
d5eecefb | 3079 | Vunread_post_input_method_events |
7539e11f | 3080 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3081 | } |
7c3bc944 | 3082 | |
7d18f9ae | 3083 | reread_first: |
284f4730 | 3084 | |
7ee32cda | 3085 | /* Display help if not echoing. */ |
1172eb8d | 3086 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3087 | { |
2190735a | 3088 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3089 | Lisp_Object help, object, position, window, tem; |
3090 | ||
3091 | tem = Fcdr (XCDR (c)); | |
3092 | help = Fcar (tem); | |
3093 | tem = Fcdr (tem); | |
3094 | window = Fcar (tem); | |
3095 | tem = Fcdr (tem); | |
3096 | object = Fcar (tem); | |
3097 | tem = Fcdr (tem); | |
3098 | position = Fcar (tem); | |
3099 | ||
2190735a | 3100 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3101 | |
3102 | /* We stopped being idle for this event; undo that. */ | |
3103 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
3104 | goto retry; |
3105 | } | |
c60ee5e7 | 3106 | |
63020c46 RS |
3107 | if (! reread || this_command_key_count == 0 |
3108 | || this_command_key_count_reset) | |
e4fe371d | 3109 | { |
7d18f9ae RS |
3110 | |
3111 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3112 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3113 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3114 | && ! (EVENT_HAS_PARAMETERS (c) |
3115 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3116 | { | |
3117 | echo_char (c); | |
3118 | if (! NILP (also_record)) | |
3119 | echo_char (also_record); | |
3120 | /* Once we reread a character, echoing can happen | |
3121 | the next time we pause to read a new one. */ | |
985f9f66 | 3122 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3123 | } |
3124 | ||
3125 | /* Record this character as part of the current key. */ | |
3126 | add_command_key (c); | |
e4fe371d | 3127 | if (! NILP (also_record)) |
7d18f9ae | 3128 | add_command_key (also_record); |
e4fe371d | 3129 | } |
b8556aee | 3130 | |
284f4730 | 3131 | last_input_char = c; |
c43b1734 | 3132 | num_input_events++; |
284f4730 JB |
3133 | |
3134 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3135 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3136 | { |
3137 | Lisp_Object tem0; | |
aed13378 | 3138 | count = SPECPDL_INDEX (); |
284f4730 JB |
3139 | |
3140 | record_unwind_protect (Fset_window_configuration, | |
3141 | Fcurrent_window_configuration (Qnil)); | |
3142 | ||
3143 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3144 | if (STRINGP (tem0)) |
284f4730 JB |
3145 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3146 | ||
3147 | cancel_echoing (); | |
3cb81011 KH |
3148 | do |
3149 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3150 | while (BUFFERP (c)); |
ff11dfa1 | 3151 | /* Remove the help from the frame */ |
284f4730 | 3152 | unbind_to (count, Qnil); |
410d4de9 | 3153 | |
284f4730 JB |
3154 | redisplay (); |
3155 | if (EQ (c, make_number (040))) | |
3156 | { | |
3157 | cancel_echoing (); | |
3cb81011 KH |
3158 | do |
3159 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3160 | while (BUFFERP (c)); |
284f4730 JB |
3161 | } |
3162 | } | |
3163 | ||
184c3d81 RS |
3164 | exit: |
3165 | RESUME_POLLING; | |
7c3bc944 | 3166 | RETURN_UNGCPRO (c); |
284f4730 JB |
3167 | } |
3168 | ||
8eb4d8ef RS |
3169 | /* Record a key that came from a mouse menu. |
3170 | Record it for echoing, for this-command-keys, and so on. */ | |
3171 | ||
3172 | static void | |
3173 | record_menu_key (c) | |
3174 | Lisp_Object c; | |
3175 | { | |
3176 | /* Wipe the echo area. */ | |
985f9f66 | 3177 | clear_message (1, 0); |
8eb4d8ef RS |
3178 | |
3179 | record_char (c); | |
3180 | ||
22b94eeb | 3181 | #if 0 |
8eb4d8ef RS |
3182 | before_command_key_count = this_command_key_count; |
3183 | before_command_echo_length = echo_length (); | |
22b94eeb | 3184 | #endif |
8eb4d8ef RS |
3185 | |
3186 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3187 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3188 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3189 | { |
3190 | echo_char (c); | |
3191 | ||
3192 | /* Once we reread a character, echoing can happen | |
3193 | the next time we pause to read a new one. */ | |
3194 | ok_to_echo_at_next_pause = 0; | |
3195 | } | |
3196 | ||
3197 | /* Record this character as part of the current key. */ | |
3198 | add_command_key (c); | |
3199 | ||
3200 | /* Re-reading in the middle of a command */ | |
3201 | last_input_char = c; | |
c43b1734 | 3202 | num_input_events++; |
8eb4d8ef RS |
3203 | } |
3204 | ||
ecb7cb34 KH |
3205 | /* Return 1 if should recognize C as "the help character". */ |
3206 | ||
3207 | int | |
3208 | help_char_p (c) | |
3209 | Lisp_Object c; | |
3210 | { | |
3211 | Lisp_Object tail; | |
3212 | ||
3213 | if (EQ (c, Vhelp_char)) | |
3214 | return 1; | |
7539e11f KR |
3215 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3216 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3217 | return 1; |
3218 | return 0; | |
3219 | } | |
3220 | ||
e4fe371d RS |
3221 | /* Record the input event C in various ways. */ |
3222 | ||
3223 | static void | |
3224 | record_char (c) | |
3225 | Lisp_Object c; | |
3226 | { | |
090c68b9 | 3227 | int recorded = 0; |
52be17cc | 3228 | |
090c68b9 KS |
3229 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3230 | { | |
3231 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3232 | events, we filter out repeated help-echo events, only store the | |
3233 | first and last in a series of mouse-movement events, and don't | |
3234 | store repeated help-echo events which are only separated by | |
3235 | mouse-movement events. */ | |
3236 | ||
3237 | Lisp_Object ev1, ev2, ev3; | |
3238 | int ix1, ix2, ix3; | |
c60ee5e7 | 3239 | |
090c68b9 KS |
3240 | if ((ix1 = recent_keys_index - 1) < 0) |
3241 | ix1 = NUM_RECENT_KEYS - 1; | |
3242 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3243 | |
090c68b9 KS |
3244 | if ((ix2 = ix1 - 1) < 0) |
3245 | ix2 = NUM_RECENT_KEYS - 1; | |
3246 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3247 | |
090c68b9 KS |
3248 | if ((ix3 = ix2 - 1) < 0) |
3249 | ix3 = NUM_RECENT_KEYS - 1; | |
3250 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3251 | |
090c68b9 KS |
3252 | if (EQ (XCAR (c), Qhelp_echo)) |
3253 | { | |
3254 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3255 | message, and a different help than the previously recorded |
090c68b9 KS |
3256 | event. */ |
3257 | Lisp_Object help, last_help; | |
3258 | ||
3259 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3260 | if (!STRINGP (help)) | |
3261 | recorded = 1; | |
3262 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3263 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3264 | recorded = 1; | |
3265 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3266 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3267 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3268 | recorded = -1; | |
3269 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3270 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3271 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3272 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3273 | recorded = -2; | |
3274 | } | |
3275 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3276 | { |
090c68b9 KS |
3277 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3278 | So additional mouse movement events replace the last element. */ | |
3279 | Lisp_Object last_window, window; | |
3280 | ||
3281 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3282 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3283 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3284 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3285 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3286 | { |
090c68b9 KS |
3287 | ASET (recent_keys, ix1, c); |
3288 | recorded = 1; | |
52be17cc GM |
3289 | } |
3290 | } | |
3291 | } | |
3292 | else | |
090c68b9 KS |
3293 | store_kbd_macro_char (c); |
3294 | ||
3295 | if (!recorded) | |
e8a50785 GM |
3296 | { |
3297 | total_keys++; | |
3298 | ASET (recent_keys, recent_keys_index, c); | |
3299 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3300 | recent_keys_index = 0; | |
3301 | } | |
090c68b9 KS |
3302 | else if (recorded < 0) |
3303 | { | |
3304 | /* We need to remove one or two events from recent_keys. | |
3305 | To do this, we simply put nil at those events and move the | |
3306 | recent_keys_index backwards over those events. Usually, | |
3307 | users will never see those nil events, as they will be | |
3308 | overwritten by the command keys entered to see recent_keys | |
3309 | (e.g. C-h l). */ | |
3310 | ||
3311 | while (recorded++ < 0 && total_keys > 0) | |
3312 | { | |
3313 | if (total_keys < NUM_RECENT_KEYS) | |
3314 | total_keys--; | |
3315 | if (--recent_keys_index < 0) | |
3316 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3317 | ASET (recent_keys, recent_keys_index, Qnil); | |
3318 | } | |
3319 | } | |
3320 | ||
3321 | num_nonmacro_input_events++; | |
c60ee5e7 | 3322 | |
e4fe371d RS |
3323 | /* Write c to the dribble file. If c is a lispy event, write |
3324 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3325 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3326 | if (dribble) | |
3327 | { | |
3328 | if (INTEGERP (c)) | |
3329 | { | |
3330 | if (XUINT (c) < 0x100) | |
3331 | putc (XINT (c), dribble); | |
3332 | else | |
6de34814 | 3333 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3334 | } |
3335 | else | |
3336 | { | |
3337 | Lisp_Object dribblee; | |
3338 | ||
3339 | /* If it's a structured event, take the event header. */ | |
3340 | dribblee = EVENT_HEAD (c); | |
3341 | ||
3342 | if (SYMBOLP (dribblee)) | |
3343 | { | |
3344 | putc ('<', dribble); | |
d5db4077 KR |
3345 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3346 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3347 | dribble); |
3348 | putc ('>', dribble); | |
3349 | } | |
3350 | } | |
3351 | ||
3352 | fflush (dribble); | |
3353 | } | |
e4fe371d RS |
3354 | } |
3355 | ||
284f4730 JB |
3356 | Lisp_Object |
3357 | print_help (object) | |
3358 | Lisp_Object object; | |
3359 | { | |
622de3e9 | 3360 | struct buffer *old = current_buffer; |
284f4730 | 3361 | Fprinc (object, Qnil); |
622de3e9 KH |
3362 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3363 | call0 (intern ("help-mode")); | |
3364 | set_buffer_internal (old); | |
284f4730 JB |
3365 | return Qnil; |
3366 | } | |
3367 | ||
3368 | /* Copy out or in the info on where C-g should throw to. | |
3369 | This is used when running Lisp code from within get_char, | |
3370 | in case get_char is called recursively. | |
3371 | See read_process_output. */ | |
3372 | ||
dfcf069d | 3373 | static void |
284f4730 JB |
3374 | save_getcjmp (temp) |
3375 | jmp_buf temp; | |
3376 | { | |
3377 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3378 | } | |
3379 | ||
dfcf069d | 3380 | static void |
284f4730 JB |
3381 | restore_getcjmp (temp) |
3382 | jmp_buf temp; | |
3383 | { | |
3384 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3385 | } | |
284f4730 | 3386 | \f |
2eb6bfbe RM |
3387 | #ifdef HAVE_MOUSE |
3388 | ||
284f4730 JB |
3389 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3390 | of this function. */ | |
a9d77f1f | 3391 | |
284f4730 JB |
3392 | static Lisp_Object |
3393 | tracking_off (old_value) | |
3394 | Lisp_Object old_value; | |
3395 | { | |
71edead1 RS |
3396 | do_mouse_tracking = old_value; |
3397 | if (NILP (old_value)) | |
284f4730 | 3398 | { |
284f4730 JB |
3399 | /* Redisplay may have been preempted because there was input |
3400 | available, and it assumes it will be called again after the | |
3401 | input has been processed. If the only input available was | |
3402 | the sort that we have just disabled, then we need to call | |
3403 | redisplay. */ | |
d9d4c147 | 3404 | if (!readable_events (1)) |
284f4730 | 3405 | { |
3007ebfb | 3406 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3407 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3408 | } |
3409 | } | |
30690496 | 3410 | return Qnil; |
284f4730 JB |
3411 | } |
3412 | ||
3413 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3414 | doc: /* Evaluate BODY with mouse movement events enabled. |
3415 | Within a `track-mouse' form, mouse motion generates input events that | |
3416 | you can read with `read-event'. | |
3417 | Normally, mouse motion is ignored. | |
3418 | usage: (track-mouse BODY ...) */) | |
3419 | (args) | |
284f4730 JB |
3420 | Lisp_Object args; |
3421 | { | |
aed13378 | 3422 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3423 | Lisp_Object val; |
3424 | ||
a9d77f1f | 3425 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3426 | |
f3253854 | 3427 | do_mouse_tracking = Qt; |
df0f2ba1 | 3428 | |
284f4730 JB |
3429 | val = Fprogn (args); |
3430 | return unbind_to (count, val); | |
3431 | } | |
2eb6bfbe | 3432 | |
f3253854 KH |
3433 | /* If mouse has moved on some frame, return one of those frames. |
3434 | Return 0 otherwise. */ | |
3435 | ||
3436 | static FRAME_PTR | |
3437 | some_mouse_moved () | |
3438 | { | |
3439 | Lisp_Object tail, frame; | |
3440 | ||
3441 | FOR_EACH_FRAME (tail, frame) | |
3442 | { | |
3443 | if (XFRAME (frame)->mouse_moved) | |
3444 | return XFRAME (frame); | |
3445 | } | |
3446 | ||
3447 | return 0; | |
3448 | } | |
3449 | ||
2eb6bfbe | 3450 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3451 | \f |
3452 | /* Low level keyboard/mouse input. | |
3453 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3454 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3455 | |
3456 | /* Return true iff there are any events in the queue that read-char | |
3457 | would return. If this returns false, a read-char would block. */ | |
3458 | static int | |
20057d52 | 3459 | readable_filtered_events (do_timers_now, filter_events) |
d9d4c147 | 3460 | int do_timers_now; |
20057d52 | 3461 | int filter_events; |
a612e298 | 3462 | { |
4ec4ed6a RS |
3463 | if (do_timers_now) |
3464 | timer_check (do_timers_now); | |
3465 | ||
a0ba8995 | 3466 | /* If the buffer contains only FOCUS_IN_EVENT events, |
20057d52 | 3467 | and FILTER_EVENTS is nonzero, report it as empty. */ |
beecf6a1 | 3468 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3469 | { |
20057d52 | 3470 | int have_live_event = 1; |
a0ba8995 | 3471 | |
20057d52 JD |
3472 | if (filter_events) |
3473 | { | |
3474 | struct input_event *event; | |
3475 | ||
3476 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3477 | ? kbd_fetch_ptr | |
3478 | : kbd_buffer); | |
3479 | ||
3480 | while (have_live_event && event->kind == FOCUS_IN_EVENT) | |
3481 | { | |
3482 | event++; | |
3483 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
3484 | event = kbd_buffer; | |
3485 | if (event == kbd_store_ptr) | |
3486 | have_live_event = 0; | |
3487 | } | |
3488 | } | |
3489 | if (have_live_event) return 1; | |
a0ba8995 RS |
3490 | } |
3491 | ||
beecf6a1 | 3492 | #ifdef HAVE_MOUSE |
f3253854 | 3493 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3494 | return 1; |
3495 | #endif | |
1e8bd3da | 3496 | if (single_kboard) |
4c52b668 | 3497 | { |
c5fdd383 | 3498 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3499 | return 1; |
3500 | } | |
3501 | else | |
3502 | { | |
c5fdd383 KH |
3503 | KBOARD *kb; |
3504 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3505 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3506 | return 1; |
3507 | } | |
beecf6a1 | 3508 | return 0; |
a612e298 RS |
3509 | } |
3510 | ||
20057d52 JD |
3511 | /* Return true iff there are any events in the queue that read-char |
3512 | would return. If this returns false, a read-char would block. */ | |
3513 | static int | |
3514 | readable_events (do_timers_now) | |
3515 | int do_timers_now; | |
3516 | { | |
3517 | return readable_filtered_events (do_timers_now, 0); | |
3518 | } | |
3519 | ||
a612e298 RS |
3520 | /* Set this for debugging, to have a way to get out */ |
3521 | int stop_character; | |
284f4730 | 3522 | |
c5fdd383 KH |
3523 | #ifdef MULTI_KBOARD |
3524 | static KBOARD * | |
3525 | event_to_kboard (event) | |
5798cf15 KH |
3526 | struct input_event *event; |
3527 | { | |
3528 | Lisp_Object frame; | |
3529 | frame = event->frame_or_window; | |
3530 | if (CONSP (frame)) | |
7539e11f | 3531 | frame = XCAR (frame); |
5798cf15 KH |
3532 | else if (WINDOWP (frame)) |
3533 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3534 | ||
3535 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3536 | For now, just ignore the problem. |
3537 | Also ignore dead frames here. */ | |
3538 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3539 | return 0; |
3540 | else | |
c5fdd383 | 3541 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3542 | } |
3543 | #endif | |
3544 | ||
284f4730 JB |
3545 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3546 | ||
3547 | void | |
3548 | kbd_buffer_store_event (event) | |
3549 | register struct input_event *event; | |
3550 | { | |
3b8f9651 | 3551 | if (event->kind == NO_EVENT) |
284f4730 JB |
3552 | abort (); |
3553 | ||
3b8f9651 | 3554 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3555 | { |
e9bf89a0 | 3556 | register int c = event->code & 0377; |
284f4730 | 3557 | |
faf5e407 JB |
3558 | if (event->modifiers & ctrl_modifier) |
3559 | c = make_ctrl_char (c); | |
3560 | ||
9fd7d808 RS |
3561 | c |= (event->modifiers |
3562 | & (meta_modifier | alt_modifier | |
3563 | | hyper_modifier | super_modifier)); | |
3564 | ||
86e5706b | 3565 | if (c == quit_char) |
284f4730 | 3566 | { |
c5fdd383 KH |
3567 | #ifdef MULTI_KBOARD |
3568 | KBOARD *kb; | |
5798cf15 KH |
3569 | struct input_event *sp; |
3570 | ||
1e8bd3da | 3571 | if (single_kboard |
c5fdd383 KH |
3572 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3573 | kb != current_kboard)) | |
5798cf15 | 3574 | { |
c5fdd383 | 3575 | kb->kbd_queue |
5798cf15 KH |
3576 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3577 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3578 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3579 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3580 | { | |
3581 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3582 | sp = kbd_buffer; | |
3583 | ||
c5fdd383 | 3584 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3585 | { |
3b8f9651 | 3586 | sp->kind = NO_EVENT; |
5798cf15 | 3587 | sp->frame_or_window = Qnil; |
da8f7368 | 3588 | sp->arg = Qnil; |
5798cf15 KH |
3589 | } |
3590 | } | |
3591 | return; | |
3592 | } | |
3593 | #endif | |
3e51c7b7 | 3594 | |
284f4730 | 3595 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3596 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3597 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3598 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3599 | { |
9b8eb840 | 3600 | Lisp_Object focus; |
4bb994d1 | 3601 | |
9b8eb840 | 3602 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3603 | if (NILP (focus)) |
beecf6a1 | 3604 | focus = event->frame_or_window; |
4c52b668 KH |
3605 | internal_last_event_frame = focus; |
3606 | Vlast_event_frame = focus; | |
4bb994d1 | 3607 | } |
3e51c7b7 | 3608 | |
ffd56f97 | 3609 | last_event_timestamp = event->timestamp; |
7189cad8 | 3610 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3611 | return; |
3612 | } | |
3613 | ||
3614 | if (c && c == stop_character) | |
3615 | { | |
3616 | sys_suspend (); | |
3617 | return; | |
3618 | } | |
284f4730 | 3619 | } |
3b8f9651 | 3620 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3621 | Just ignore the second one. */ |
3b8f9651 | 3622 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3623 | && kbd_fetch_ptr != kbd_store_ptr |
3b8f9651 | 3624 | && kbd_store_ptr->kind == BUFFER_SWITCH_EVENT) |
3fe8e9a2 | 3625 | return; |
284f4730 | 3626 | |
beecf6a1 KH |
3627 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3628 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3629 | |
3630 | /* Don't let the very last slot in the buffer become full, | |
3631 | since that would make the two pointers equal, | |
3632 | and that is indistinguishable from an empty buffer. | |
3633 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3634 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3635 | { |
da8f7368 | 3636 | int idx; |
c60ee5e7 | 3637 | |
3b8f9651 | 3638 | #if 0 /* The SELECTION_REQUEST_EVENT case looks bogus, and it's error |
da8f7368 GM |
3639 | prone to assign individual members for other events, in case |
3640 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3641 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3642 | sp->kind = event->kind; |
3b8f9651 | 3643 | if (event->kind == SELECTION_REQUEST_EVENT) |
27203ead RS |
3644 | { |
3645 | /* We must not use the ordinary copying code for this case, | |
3646 | since `part' is an enum and copying it might not copy enough | |
3647 | in this case. */ | |
612b78ef | 3648 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3649 | } |
3650 | else | |
da8f7368 | 3651 | |
27203ead | 3652 | { |
612b78ef KH |
3653 | sp->code = event->code; |
3654 | sp->part = event->part; | |
3655 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3656 | sp->arg = event->arg; |
612b78ef KH |
3657 | sp->modifiers = event->modifiers; |
3658 | sp->x = event->x; | |
3659 | sp->y = event->y; | |
3660 | sp->timestamp = event->timestamp; | |
27203ead | 3661 | } |
da8f7368 GM |
3662 | #else |
3663 | *kbd_store_ptr = *event; | |
3664 | #endif | |
284f4730 | 3665 | |
da8f7368 GM |
3666 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3667 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3668 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3669 | ++kbd_store_ptr; | |
284f4730 JB |
3670 | } |
3671 | } | |
8dfd92c9 GM |
3672 | |
3673 | ||
f139e559 | 3674 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3675 | SIZE events. If there's not enough room in BUFP, ignore this |
3676 | event. | |
8dfd92c9 GM |
3677 | |
3678 | HELP is the help form. | |
3679 | ||
3680 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3681 | Lisp object where the help was found (a buffer, a string, an |
3682 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3683 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3684 | |
3685 | Value is the number of input_events generated. */ | |
3686 | ||
3687 | int | |
0bbfdc25 | 3688 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3689 | struct input_event *bufp; |
0bbfdc25 | 3690 | int size; |
2190735a | 3691 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3692 | int pos; |
3693 | { | |
2e1a49ad | 3694 | if (size >= 1) |
0bbfdc25 GM |
3695 | { |
3696 | bufp->kind = HELP_EVENT; | |
3697 | bufp->frame_or_window = frame; | |
3698 | bufp->arg = object; | |
2e1a49ad SM |
3699 | bufp->x = WINDOWP (window) ? window : frame; |
3700 | bufp->y = help; | |
78134789 | 3701 | bufp->code = pos; |
2e1a49ad | 3702 | return 1; |
0bbfdc25 | 3703 | } |
2e1a49ad | 3704 | return 0; |
8dfd92c9 GM |
3705 | } |
3706 | ||
3707 | ||
3708 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3709 | ||
3710 | void | |
3711 | kbd_buffer_store_help_event (frame, help) | |
3712 | Lisp_Object frame, help; | |
3713 | { | |
3714 | struct input_event event; | |
3715 | ||
3716 | event.kind = HELP_EVENT; | |
3717 | event.frame_or_window = frame; | |
3718 | event.arg = Qnil; | |
2e1a49ad SM |
3719 | event.x = Qnil; |
3720 | event.y = help; | |
8dfd92c9 GM |
3721 | event.code = 0; |
3722 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3723 | } |
3724 | ||
a612e298 | 3725 | \f |
07de30b9 | 3726 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3727 | NO_EVENT. */ |
07de30b9 GV |
3728 | void |
3729 | discard_mouse_events () | |
3730 | { | |
3731 | struct input_event *sp; | |
3732 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3733 | { | |
3734 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3735 | sp = kbd_buffer; | |
3736 | ||
3b8f9651 | 3737 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3738 | || sp->kind == WHEEL_EVENT |
07de30b9 | 3739 | #ifdef WINDOWSNT |
3b8f9651 | 3740 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3741 | #endif |
3b8f9651 | 3742 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3743 | { |
3b8f9651 | 3744 | sp->kind = NO_EVENT; |
07de30b9 GV |
3745 | } |
3746 | } | |
3747 | } | |
eeabfe76 | 3748 | |
0bbfdc25 GM |
3749 | |
3750 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3751 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3752 | |
3b8f9651 | 3753 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3754 | the input queue, possibly leaving the input queue empty if there |
3755 | are no real input events. */ | |
3756 | ||
eeabfe76 EZ |
3757 | int |
3758 | kbd_buffer_events_waiting (discard) | |
3759 | int discard; | |
3760 | { | |
3761 | struct input_event *sp; | |
c60ee5e7 | 3762 | |
0bbfdc25 | 3763 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3764 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3765 | ++sp) |
eeabfe76 EZ |
3766 | { |
3767 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3768 | sp = kbd_buffer; | |
eeabfe76 | 3769 | } |
0bbfdc25 | 3770 | |
eeabfe76 EZ |
3771 | if (discard) |
3772 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3773 | |
3b8f9651 | 3774 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3775 | } |
0bbfdc25 | 3776 | |
07de30b9 | 3777 | \f |
0bbfdc25 GM |
3778 | /* Clear input event EVENT. */ |
3779 | ||
3780 | static INLINE void | |
3781 | clear_event (event) | |
3782 | struct input_event *event; | |
3783 | { | |
3784 | int idx = 2 * (event - kbd_buffer); | |
3785 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3786 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3b8f9651 | 3787 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3788 | } |
3789 | ||
3790 | ||
a612e298 RS |
3791 | /* Read one event from the event buffer, waiting if necessary. |
3792 | The value is a Lisp object representing the event. | |
3793 | The value is nil for an event that should be ignored, | |
3794 | or that was handled here. | |
3795 | We always read and discard one event. */ | |
284f4730 JB |
3796 | |
3797 | static Lisp_Object | |
83d68044 | 3798 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3799 | KBOARD **kbp; |
83d68044 | 3800 | int *used_mouse_menu; |
284f4730 JB |
3801 | { |
3802 | register int c; | |
3803 | Lisp_Object obj; | |
3804 | ||
3805 | if (noninteractive) | |
3806 | { | |
3807 | c = getchar (); | |
18cd2eeb | 3808 | XSETINT (obj, c); |
f5b56972 | 3809 | *kbp = current_kboard; |
284f4730 JB |
3810 | return obj; |
3811 | } | |
3812 | ||
3813 | /* Wait until there is input available. */ | |
3814 | for (;;) | |
3815 | { | |
beecf6a1 KH |
3816 | if (kbd_fetch_ptr != kbd_store_ptr) |
3817 | break; | |
3818 | #ifdef HAVE_MOUSE | |
f3253854 | 3819 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3820 | break; |
beecf6a1 | 3821 | #endif |
284f4730 JB |
3822 | |
3823 | /* If the quit flag is set, then read_char will return | |
3824 | quit_char, so that counts as "available input." */ | |
3825 | if (!NILP (Vquit_flag)) | |
3826 | quit_throw_to_read_char (); | |
3827 | ||
3828 | /* One way or another, wait until input is available; then, if | |
3829 | interrupt handlers have not read it, read it now. */ | |
3830 | ||
3831 | #ifdef OLDVMS | |
3832 | wait_for_kbd_input (); | |
3833 | #else | |
3834 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3835 | #ifdef SIGIO | |
3836 | gobble_input (0); | |
3837 | #endif /* SIGIO */ | |
beecf6a1 KH |
3838 | if (kbd_fetch_ptr != kbd_store_ptr) |
3839 | break; | |
3840 | #ifdef HAVE_MOUSE | |
f3253854 | 3841 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3842 | break; |
3843 | #endif | |
3844 | { | |
3845 | Lisp_Object minus_one; | |
f76475ad | 3846 | |
beecf6a1 | 3847 | XSETINT (minus_one, -1); |
d9d4c147 | 3848 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3849 | |
beecf6a1 KH |
3850 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3851 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3852 | read_avail_input (1); | |
3853 | } | |
284f4730 JB |
3854 | #endif /* not VMS */ |
3855 | } | |
3856 | ||
303b5b3f RS |
3857 | if (CONSP (Vunread_command_events)) |
3858 | { | |
3859 | Lisp_Object first; | |
7539e11f KR |
3860 | first = XCAR (Vunread_command_events); |
3861 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3862 | *kbp = current_kboard; |
3863 | return first; | |
3864 | } | |
3865 | ||
284f4730 JB |
3866 | /* At this point, we know that there is a readable event available |
3867 | somewhere. If the event queue is empty, then there must be a | |
3868 | mouse movement enabled and available. */ | |
beecf6a1 | 3869 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3870 | { |
cd21b839 | 3871 | struct input_event *event; |
3e51c7b7 | 3872 | |
beecf6a1 KH |
3873 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3874 | ? kbd_fetch_ptr | |
3875 | : kbd_buffer); | |
3e51c7b7 | 3876 | |
cd21b839 | 3877 | last_event_timestamp = event->timestamp; |
cd21b839 | 3878 | |
c5fdd383 KH |
3879 | #ifdef MULTI_KBOARD |
3880 | *kbp = event_to_kboard (event); | |
3881 | if (*kbp == 0) | |
3882 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3883 | #else |
c5fdd383 | 3884 | *kbp = &the_only_kboard; |
5798cf15 | 3885 | #endif |
beecf6a1 | 3886 | |
4bb994d1 JB |
3887 | obj = Qnil; |
3888 | ||
48e416d4 | 3889 | /* These two kinds of events get special handling |
a612e298 RS |
3890 | and don't actually appear to the command loop. |
3891 | We return nil for them. */ | |
3b8f9651 | 3892 | if (event->kind == SELECTION_REQUEST_EVENT) |
48e416d4 | 3893 | { |
598a9fa7 | 3894 | #ifdef HAVE_X11 |
1e8bd3da RS |
3895 | struct input_event copy; |
3896 | ||
4581e928 RS |
3897 | /* Remove it from the buffer before processing it, |
3898 | since otherwise swallow_events will see it | |
3899 | and process it again. */ | |
1e8bd3da | 3900 | copy = *event; |
beecf6a1 | 3901 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3902 | input_pending = readable_events (0); |
4581e928 | 3903 | x_handle_selection_request (©); |
598a9fa7 JB |
3904 | #else |
3905 | /* We're getting selection request events, but we don't have | |
3906 | a window system. */ | |
3907 | abort (); | |
3908 | #endif | |
48e416d4 RS |
3909 | } |
3910 | ||
3b8f9651 | 3911 | else if (event->kind == SELECTION_CLEAR_EVENT) |
48e416d4 | 3912 | { |
598a9fa7 | 3913 | #ifdef HAVE_X11 |
e0301c07 RS |
3914 | struct input_event copy; |
3915 | ||
3916 | /* Remove it from the buffer before processing it. */ | |
3917 | copy = *event; | |
beecf6a1 | 3918 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3919 | input_pending = readable_events (0); |
90c2bb0c | 3920 | x_handle_selection_clear (©); |
598a9fa7 JB |
3921 | #else |
3922 | /* We're getting selection request events, but we don't have | |
3923 | a window system. */ | |
3924 | abort (); | |
3925 | #endif | |
48e416d4 | 3926 | } |
e0f712ba | 3927 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3928 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3929 | { |
bbdc2092 RS |
3930 | /* Make an event (delete-frame (FRAME)). */ |
3931 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3932 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3933 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3934 | } |
1a578e9b AC |
3935 | #endif |
3936 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
3b8f9651 | 3937 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
3938 | { |
3939 | /* Make an event (iconify-frame (FRAME)). */ | |
3940 | obj = Fcons (event->frame_or_window, Qnil); | |
3941 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3942 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3943 | } |
3b8f9651 | 3944 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
3945 | { |
3946 | /* Make an event (make-frame-visible (FRAME)). */ | |
3947 | obj = Fcons (event->frame_or_window, Qnil); | |
3948 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3949 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3950 | } |
3951 | #endif | |
3b8f9651 | 3952 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
3953 | { |
3954 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3955 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3956 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3957 | } |
488dd4c4 JD |
3958 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
3959 | || defined (USE_GTK) | |
3b8f9651 | 3960 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
3961 | { |
3962 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3963 | input_pending = readable_events (0); |
e649d076 RS |
3964 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3965 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3966 | } |
1161d367 GV |
3967 | #endif |
3968 | #ifdef WINDOWSNT | |
3b8f9651 | 3969 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
3970 | { |
3971 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3972 | obj = Fcons (event->modifiers, Qnil); | |
15fdc2e3 | 3973 | obj = Fcons (event->code, obj); |
1161d367 GV |
3974 | obj = Fcons (event->frame_or_window, obj); |
3975 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3976 | kbd_fetch_ptr = event + 1; | |
3977 | } | |
099787c1 | 3978 | #endif |
3b8f9651 | 3979 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
3980 | { |
3981 | obj = Fcons (Qsave_session, Qnil); | |
3982 | kbd_fetch_ptr = event + 1; | |
3983 | } | |
a612e298 | 3984 | /* Just discard these, by returning nil. |
c5fdd383 | 3985 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3986 | when we need to randomly delete events from the queue. |
3987 | (They shouldn't otherwise be found in the buffer, | |
3988 | but on some machines it appears they do show up | |
c5fdd383 | 3989 | even without MULTI_KBOARD.) */ |
3b8f9651 | 3990 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 3991 | mouse events during a popup-menu call. */ |
3b8f9651 | 3992 | else if (event->kind == NO_EVENT) |
beecf6a1 | 3993 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3994 | else if (event->kind == HELP_EVENT) |
3995 | { | |
2190735a | 3996 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3997 | |
8dfd92c9 GM |
3998 | frame = event->frame_or_window; |
3999 | object = event->arg; | |
2e1a49ad SM |
4000 | position = make_number (event->code); |
4001 | window = event->x; | |
4002 | help = event->y; | |
0bbfdc25 | 4003 | clear_event (event); |
e4457b09 GM |
4004 | |
4005 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4006 | if (!WINDOWP (window)) |
4007 | window = Qnil; | |
4008 | obj = Fcons (Qhelp_echo, | |
4009 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4010 | } |
c51c7093 GM |
4011 | else if (event->kind == FOCUS_IN_EVENT) |
4012 | { | |
4013 | /* Notification of a FocusIn event. The frame receiving the | |
4014 | focus is in event->frame_or_window. Generate a | |
4015 | switch-frame event if necessary. */ | |
4016 | Lisp_Object frame, focus; | |
4017 | ||
4018 | frame = event->frame_or_window; | |
4019 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4020 | if (FRAMEP (focus)) | |
4021 | frame = focus; | |
4022 | ||
4023 | if (!EQ (frame, internal_last_event_frame) | |
4024 | && !EQ (frame, selected_frame)) | |
4025 | obj = make_lispy_switch_frame (frame); | |
4026 | internal_last_event_frame = frame; | |
4027 | kbd_fetch_ptr = event + 1; | |
4028 | } | |
1e12dd87 RS |
4029 | else |
4030 | { | |
c51c7093 GM |
4031 | /* If this event is on a different frame, return a switch-frame this |
4032 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4033 | Lisp_Object frame; |
1e12dd87 | 4034 | Lisp_Object focus; |
7b4aedb9 | 4035 | |
9b8eb840 | 4036 | frame = event->frame_or_window; |
2470a66f | 4037 | if (CONSP (frame)) |
7539e11f | 4038 | frame = XCAR (frame); |
2470a66f | 4039 | else if (WINDOWP (frame)) |
1e12dd87 | 4040 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4041 | |
1e12dd87 RS |
4042 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4043 | if (! NILP (focus)) | |
4044 | frame = focus; | |
07d2b8de | 4045 | |
4c52b668 | 4046 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4047 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4048 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4049 | internal_last_event_frame = frame; |
4bb994d1 | 4050 | |
1e12dd87 RS |
4051 | /* If we didn't decide to make a switch-frame event, go ahead |
4052 | and build a real event from the queue entry. */ | |
cd21b839 | 4053 | |
1e12dd87 RS |
4054 | if (NILP (obj)) |
4055 | { | |
4056 | obj = make_lispy_event (event); | |
c60ee5e7 | 4057 | |
488dd4c4 JD |
4058 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \ |
4059 | || defined (USE_GTK) | |
83d68044 KH |
4060 | /* If this was a menu selection, then set the flag to inhibit |
4061 | writing to last_nonmenu_event. Don't do this if the event | |
4062 | we're returning is (menu-bar), though; that indicates the | |
4063 | beginning of the menu sequence, and we might as well leave | |
4064 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4065 | if (used_mouse_menu |
4066 | && !EQ (event->frame_or_window, event->arg) | |
4067 | && (event->kind == MENU_BAR_EVENT | |
4068 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4069 | *used_mouse_menu = 1; |
4070 | #endif | |
1e12dd87 RS |
4071 | |
4072 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4073 | clear_event (event); |
beecf6a1 | 4074 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4075 | } |
4bb994d1 | 4076 | } |
284f4730 | 4077 | } |
2eb6bfbe | 4078 | #ifdef HAVE_MOUSE |
a612e298 | 4079 | /* Try generating a mouse motion event. */ |
f3253854 | 4080 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4081 | { |
f3253854 | 4082 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4083 | Lisp_Object bar_window; |
3c370943 | 4084 | enum scroll_bar_part part; |
e5d77022 JB |
4085 | Lisp_Object x, y; |
4086 | unsigned long time; | |
284f4730 | 4087 | |
c5fdd383 | 4088 | *kbp = current_kboard; |
e177ac3a RS |
4089 | /* Note that this uses F to determine which display to look at. |
4090 | If there is no valid info, it does not store anything | |
4091 | so x remains nil. */ | |
4092 | x = Qnil; | |
dd26ab75 | 4093 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
4094 | |
4095 | obj = Qnil; | |
284f4730 | 4096 | |
4bb994d1 JB |
4097 | /* Decide if we should generate a switch-frame event. Don't |
4098 | generate switch-frame events for motion outside of all Emacs | |
4099 | frames. */ | |
e177ac3a | 4100 | if (!NILP (x) && f) |
cd21b839 | 4101 | { |
9b8eb840 | 4102 | Lisp_Object frame; |
4bb994d1 | 4103 | |
9b8eb840 | 4104 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4105 | if (NILP (frame)) |
18cd2eeb | 4106 | XSETFRAME (frame, f); |
4bb994d1 | 4107 | |
4c52b668 | 4108 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4109 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4110 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4111 | internal_last_event_frame = frame; |
cd21b839 | 4112 | } |
4bb994d1 | 4113 | |
df0f2ba1 | 4114 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4115 | return a mouse-motion event. */ |
e177ac3a | 4116 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4117 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4118 | } |
2eb6bfbe | 4119 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
4120 | else |
4121 | /* We were promised by the above while loop that there was | |
4122 | something for us to read! */ | |
4123 | abort (); | |
4124 | ||
d9d4c147 | 4125 | input_pending = readable_events (0); |
284f4730 | 4126 | |
4c52b668 | 4127 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4128 | |
284f4730 JB |
4129 | return (obj); |
4130 | } | |
a612e298 RS |
4131 | \f |
4132 | /* Process any events that are not user-visible, | |
4133 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4134 | |
4135 | void | |
d9d4c147 KH |
4136 | swallow_events (do_display) |
4137 | int do_display; | |
3a3b9632 | 4138 | { |
87dd9b9b RS |
4139 | int old_timers_run; |
4140 | ||
beecf6a1 | 4141 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4142 | { |
4143 | struct input_event *event; | |
4144 | ||
beecf6a1 KH |
4145 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4146 | ? kbd_fetch_ptr | |
4147 | : kbd_buffer); | |
3a3b9632 RS |
4148 | |
4149 | last_event_timestamp = event->timestamp; | |
4150 | ||
4151 | /* These two kinds of events get special handling | |
4152 | and don't actually appear to the command loop. */ | |
3b8f9651 | 4153 | if (event->kind == SELECTION_REQUEST_EVENT) |
3a3b9632 RS |
4154 | { |
4155 | #ifdef HAVE_X11 | |
4581e928 | 4156 | struct input_event copy; |
e0301c07 RS |
4157 | |
4158 | /* Remove it from the buffer before processing it, | |
4159 | since otherwise swallow_events called recursively could see it | |
4160 | and process it again. */ | |
4581e928 | 4161 | copy = *event; |
beecf6a1 | 4162 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4163 | input_pending = readable_events (0); |
4581e928 | 4164 | x_handle_selection_request (©); |
3a3b9632 RS |
4165 | #else |
4166 | /* We're getting selection request events, but we don't have | |
4167 | a window system. */ | |
4168 | abort (); | |
4169 | #endif | |
4170 | } | |
4171 | ||
3b8f9651 | 4172 | else if (event->kind == SELECTION_CLEAR_EVENT) |
3a3b9632 RS |
4173 | { |
4174 | #ifdef HAVE_X11 | |
e0301c07 RS |
4175 | struct input_event copy; |
4176 | ||
4177 | /* Remove it from the buffer before processing it, */ | |
4178 | copy = *event; | |
4179 | ||
beecf6a1 | 4180 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4181 | input_pending = readable_events (0); |
90c2bb0c | 4182 | x_handle_selection_clear (©); |
3a3b9632 RS |
4183 | #else |
4184 | /* We're getting selection request events, but we don't have | |
4185 | a window system. */ | |
4186 | abort (); | |
4187 | #endif | |
4188 | } | |
4189 | else | |
4190 | break; | |
4191 | } | |
4192 | ||
87dd9b9b | 4193 | old_timers_run = timers_run; |
d9d4c147 | 4194 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
4195 | |
4196 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4197 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4198 | } |
a612e298 | 4199 | \f |
d9d4c147 KH |
4200 | /* Record the start of when Emacs is idle, |
4201 | for the sake of running idle-time timers. */ | |
4202 | ||
07a59269 | 4203 | void |
d9d4c147 KH |
4204 | timer_start_idle () |
4205 | { | |
4206 | Lisp_Object timers; | |
4207 | ||
4208 | /* If we are already in the idle state, do nothing. */ | |
4209 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4210 | return; | |
4211 | ||
4212 | EMACS_GET_TIME (timer_idleness_start_time); | |
4213 | ||
3021d3a9 RS |
4214 | timer_last_idleness_start_time = timer_idleness_start_time; |
4215 | ||
d9d4c147 | 4216 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4217 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4218 | { |
4219 | Lisp_Object timer; | |
4220 | ||
7539e11f | 4221 | timer = XCAR (timers); |
d9d4c147 KH |
4222 | |
4223 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4224 | continue; | |
4225 | XVECTOR (timer)->contents[0] = Qnil; | |
4226 | } | |
4227 | } | |
4228 | ||
4229 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4230 | ||
07a59269 | 4231 | void |
d9d4c147 KH |
4232 | timer_stop_idle () |
4233 | { | |
4234 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4235 | } | |
4236 | ||
e044e87c RS |
4237 | /* This is only for debugging. */ |
4238 | struct input_event last_timer_event; | |
4239 | ||
c04cbc3b RS |
4240 | /* Check whether a timer has fired. To prevent larger problems we simply |
4241 | disregard elements that are not proper timers. Do not make a circular | |
4242 | timer list for the time being. | |
4243 | ||
4244 | Returns the number of seconds to wait until the next timer fires. If a | |
4245 | timer is triggering now, return zero seconds. | |
4246 | If no timer is active, return -1 seconds. | |
4247 | ||
4ec4ed6a RS |
4248 | If a timer is ripe, we run it, with quitting turned off. |
4249 | ||
4250 | DO_IT_NOW is now ignored. It used to mean that we should | |
4251 | run the timer directly instead of queueing a timer-event. | |
4252 | Now we always run timers directly. */ | |
c04cbc3b RS |
4253 | |
4254 | EMACS_TIME | |
4255 | timer_check (do_it_now) | |
4256 | int do_it_now; | |
4257 | { | |
4258 | EMACS_TIME nexttime; | |
9291c072 RS |
4259 | EMACS_TIME now, idleness_now; |
4260 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4261 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4262 | |
c04cbc3b RS |
4263 | EMACS_SET_SECS (nexttime, -1); |
4264 | EMACS_SET_USECS (nexttime, -1); | |
4265 | ||
9291c072 | 4266 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4267 | timers = Vtimer_list; |
9291c072 RS |
4268 | /* Consider the idle timers only if Emacs is idle. */ |
4269 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4270 | idle_timers = Vtimer_idle_list; | |
4271 | else | |
4272 | idle_timers = Qnil; | |
4273 | chosen_timer = Qnil; | |
4274 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4275 | |
9291c072 | 4276 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4277 | { |
9291c072 RS |
4278 | EMACS_GET_TIME (now); |
4279 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4280 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4281 | } | |
c04cbc3b | 4282 | |
9291c072 RS |
4283 | while (CONSP (timers) || CONSP (idle_timers)) |
4284 | { | |
9291c072 | 4285 | Lisp_Object *vector; |
8c907a56 | 4286 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4287 | EMACS_TIME timer_time, idle_timer_time; |
4288 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4289 | ||
4290 | /* Skip past invalid timers and timers already handled. */ | |
4291 | if (!NILP (timers)) | |
c04cbc3b | 4292 | { |
7539e11f | 4293 | timer = XCAR (timers); |
9291c072 RS |
4294 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4295 | { | |
7539e11f | 4296 | timers = XCDR (timers); |
9291c072 RS |
4297 | continue; |
4298 | } | |
4299 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4300 | |
9291c072 RS |
4301 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4302 | || !INTEGERP (vector[3]) | |
4303 | || ! NILP (vector[0])) | |
4304 | { | |
7539e11f | 4305 | timers = XCDR (timers); |
9291c072 RS |
4306 | continue; |
4307 | } | |
4308 | } | |
4309 | if (!NILP (idle_timers)) | |
4310 | { | |
7539e11f | 4311 | timer = XCAR (idle_timers); |
d9d4c147 | 4312 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4313 | { |
7539e11f | 4314 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4315 | continue; |
4316 | } | |
d9d4c147 KH |
4317 | vector = XVECTOR (timer)->contents; |
4318 | ||
4319 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4320 | || !INTEGERP (vector[3]) |
4321 | || ! NILP (vector[0])) | |
4322 | { | |
7539e11f | 4323 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4324 | continue; |
4325 | } | |
4326 | } | |
d9d4c147 | 4327 | |
9291c072 RS |
4328 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4329 | based on the next ordinary timer. | |
4330 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4331 | this timer becomes ripe (negative if it's already ripe). */ | |
4332 | if (!NILP (timers)) | |
4333 | { | |
7539e11f | 4334 | timer = XCAR (timers); |
9291c072 | 4335 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4336 | EMACS_SET_SECS (timer_time, |
4337 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4338 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4339 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4340 | } | |
ba8dfba8 | 4341 | |
9291c072 RS |
4342 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4343 | based on the next idle timer. */ | |
4344 | if (!NILP (idle_timers)) | |
4345 | { | |
7539e11f | 4346 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4347 | vector = XVECTOR (idle_timer)->contents; |
4348 | EMACS_SET_SECS (idle_timer_time, | |
4349 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4350 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4351 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4352 | } | |
ba8dfba8 | 4353 | |
9291c072 RS |
4354 | /* Decide which timer is the next timer, |
4355 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4356 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4357 | |
9291c072 RS |
4358 | if (! NILP (timers) && ! NILP (idle_timers)) |
4359 | { | |
4360 | EMACS_TIME temp; | |
4361 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4362 | if (EMACS_TIME_NEG_P (temp)) | |
4363 | { | |
4364 | chosen_timer = timer; | |
7539e11f | 4365 | timers = XCDR (timers); |
9291c072 | 4366 | difference = timer_difference; |
c04cbc3b | 4367 | } |
d9d4c147 | 4368 | else |
d9d4c147 | 4369 | { |
9291c072 | 4370 | chosen_timer = idle_timer; |
7539e11f | 4371 | idle_timers = XCDR (idle_timers); |
9291c072 | 4372 | difference = idle_timer_difference; |
d9d4c147 | 4373 | } |
7ea13e12 | 4374 | } |
9291c072 RS |
4375 | else if (! NILP (timers)) |
4376 | { | |
4377 | chosen_timer = timer; | |
7539e11f | 4378 | timers = XCDR (timers); |
9291c072 RS |
4379 | difference = timer_difference; |
4380 | } | |
4381 | else | |
4382 | { | |
4383 | chosen_timer = idle_timer; | |
7539e11f | 4384 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4385 | difference = idle_timer_difference; |
4386 | } | |
4387 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4388 | |
bd55b860 | 4389 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4390 | if (EMACS_TIME_NEG_P (difference) |
4391 | || (EMACS_SECS (difference) == 0 | |
4392 | && EMACS_USECS (difference) == 0)) | |
4393 | { | |
4394 | if (NILP (vector[0])) | |
4395 | { | |
d925fb39 | 4396 | int was_locked = single_kboard; |
331379bf | 4397 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4398 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4399 | |
9291c072 RS |
4400 | /* Mark the timer as triggered to prevent problems if the lisp |
4401 | code fails to reschedule it right. */ | |
4402 | vector[0] = Qt; | |
4403 | ||
d925fb39 | 4404 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4405 | |
d925fb39 | 4406 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4407 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4408 | timers_run++; |
d925fb39 | 4409 | unbind_to (count, Qnil); |
4ec4ed6a | 4410 | |
d925fb39 RS |
4411 | /* Resume allowing input from any kboard, if that was true before. */ |
4412 | if (!was_locked) | |
4413 | any_kboard_state (); | |
9291c072 | 4414 | |
d925fb39 RS |
4415 | /* Since we have handled the event, |
4416 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4417 | } |
4418 | } | |
4419 | else | |
4420 | /* When we encounter a timer that is still waiting, | |
4421 | return the amount of time to wait before it is ripe. */ | |
4422 | { | |
4423 | UNGCPRO; | |
9291c072 RS |
4424 | return difference; |
4425 | } | |
c04cbc3b | 4426 | } |
9291c072 | 4427 | |
7ea13e12 RS |
4428 | /* No timers are pending in the future. */ |
4429 | /* Return 0 if we generated an event, and -1 if not. */ | |
4430 | UNGCPRO; | |
c04cbc3b RS |
4431 | return nexttime; |
4432 | } | |
4433 | \f | |
284f4730 | 4434 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4435 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4436 | static Lisp_Object func_key_syms; |
4437 | static Lisp_Object mouse_syms; | |
8006e4bb | 4438 | static Lisp_Object wheel_syms; |
a24dc617 | 4439 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4440 | |
e9bf89a0 RS |
4441 | /* This is a list of keysym codes for special "accent" characters. |
4442 | It parallels lispy_accent_keys. */ | |
4443 | ||
4444 | static int lispy_accent_codes[] = | |
4445 | { | |
79a7046c | 4446 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4447 | XK_dead_circumflex, |
79a7046c RS |
4448 | #else |
4449 | 0, | |
4450 | #endif | |
4451 | #ifdef XK_dead_grave | |
e9bf89a0 | 4452 | XK_dead_grave, |
79a7046c RS |
4453 | #else |
4454 | 0, | |
4455 | #endif | |
4456 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4457 | XK_dead_tilde, |
79a7046c RS |
4458 | #else |
4459 | 0, | |
4460 | #endif | |
4461 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4462 | XK_dead_diaeresis, |
79a7046c RS |
4463 | #else |
4464 | 0, | |
4465 | #endif | |
4466 | #ifdef XK_dead_macron | |
e9bf89a0 | 4467 | XK_dead_macron, |
79a7046c RS |
4468 | #else |
4469 | 0, | |
4470 | #endif | |
4471 | #ifdef XK_dead_degree | |
e9bf89a0 | 4472 | XK_dead_degree, |
79a7046c RS |
4473 | #else |
4474 | 0, | |
4475 | #endif | |
4476 | #ifdef XK_dead_acute | |
e9bf89a0 | 4477 | XK_dead_acute, |
79a7046c RS |
4478 | #else |
4479 | 0, | |
4480 | #endif | |
4481 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4482 | XK_dead_cedilla, |
79a7046c RS |
4483 | #else |
4484 | 0, | |
4485 | #endif | |
4486 | #ifdef XK_dead_breve | |
e9bf89a0 | 4487 | XK_dead_breve, |
79a7046c RS |
4488 | #else |
4489 | 0, | |
4490 | #endif | |
4491 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4492 | XK_dead_ogonek, |
79a7046c RS |
4493 | #else |
4494 | 0, | |
4495 | #endif | |
4496 | #ifdef XK_dead_caron | |
e9bf89a0 | 4497 | XK_dead_caron, |
79a7046c RS |
4498 | #else |
4499 | 0, | |
4500 | #endif | |
4501 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4502 | XK_dead_doubleacute, |
79a7046c RS |
4503 | #else |
4504 | 0, | |
4505 | #endif | |
4506 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4507 | XK_dead_abovedot, |
79a7046c RS |
4508 | #else |
4509 | 0, | |
4510 | #endif | |
ed3230db DL |
4511 | #ifdef XK_dead_abovering |
4512 | XK_dead_abovering, | |
4513 | #else | |
4514 | 0, | |
4515 | #endif | |
4516 | #ifdef XK_dead_iota | |
4517 | XK_dead_iota, | |
4518 | #else | |
4519 | 0, | |
4520 | #endif | |
4521 | #ifdef XK_dead_belowdot | |
4522 | XK_dead_belowdot, | |
4523 | #else | |
4524 | 0, | |
4525 | #endif | |
4526 | #ifdef XK_dead_voiced_sound | |
4527 | XK_dead_voiced_sound, | |
4528 | #else | |
4529 | 0, | |
4530 | #endif | |
4531 | #ifdef XK_dead_semivoiced_sound | |
4532 | XK_dead_semivoiced_sound, | |
4533 | #else | |
4534 | 0, | |
4535 | #endif | |
4536 | #ifdef XK_dead_hook | |
4537 | XK_dead_hook, | |
4538 | #else | |
4539 | 0, | |
4540 | #endif | |
4541 | #ifdef XK_dead_horn | |
4542 | XK_dead_horn, | |
4543 | #else | |
4544 | 0, | |
4545 | #endif | |
e9bf89a0 RS |
4546 | }; |
4547 | ||
4548 | /* This is a list of Lisp names for special "accent" characters. | |
4549 | It parallels lispy_accent_codes. */ | |
4550 | ||
4551 | static char *lispy_accent_keys[] = | |
4552 | { | |
4553 | "dead-circumflex", | |
4554 | "dead-grave", | |
4555 | "dead-tilde", | |
4556 | "dead-diaeresis", | |
4557 | "dead-macron", | |
4558 | "dead-degree", | |
4559 | "dead-acute", | |
4560 | "dead-cedilla", | |
4561 | "dead-breve", | |
4562 | "dead-ogonek", | |
4563 | "dead-caron", | |
4564 | "dead-doubleacute", | |
4565 | "dead-abovedot", | |
ed3230db DL |
4566 | "dead-abovering", |
4567 | "dead-iota", | |
4568 | "dead-belowdot", | |
4569 | "dead-voiced-sound", | |
4570 | "dead-semivoiced-sound", | |
4571 | "dead-hook", | |
4572 | "dead-horn", | |
e9bf89a0 RS |
4573 | }; |
4574 | ||
e98a93eb GV |
4575 | #ifdef HAVE_NTGUI |
4576 | #define FUNCTION_KEY_OFFSET 0x0 | |
4577 | ||
4578 | char *lispy_function_keys[] = | |
4579 | { | |
4580 | 0, /* 0 */ | |
c60ee5e7 | 4581 | |
e98a93eb GV |
4582 | 0, /* VK_LBUTTON 0x01 */ |
4583 | 0, /* VK_RBUTTON 0x02 */ | |
4584 | "cancel", /* VK_CANCEL 0x03 */ | |
4585 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4586 | |
e98a93eb | 4587 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4588 | |
e98a93eb GV |
4589 | "backspace", /* VK_BACK 0x08 */ |
4590 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4591 | |
e98a93eb | 4592 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4593 | |
e98a93eb GV |
4594 | "clear", /* VK_CLEAR 0x0C */ |
4595 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4596 | |
e98a93eb | 4597 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4598 | |
1161d367 GV |
4599 | 0, /* VK_SHIFT 0x10 */ |
4600 | 0, /* VK_CONTROL 0x11 */ | |
4601 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4602 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4603 | "capslock", /* VK_CAPITAL 0x14 */ |
c60ee5e7 | 4604 | |
e98a93eb | 4605 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ |
c60ee5e7 | 4606 | |
1161d367 | 4607 | "escape", /* VK_ESCAPE 0x1B */ |
c60ee5e7 | 4608 | |
e98a93eb | 4609 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ |
c60ee5e7 | 4610 | |
e98a93eb GV |
4611 | 0, /* VK_SPACE 0x20 */ |
4612 | "prior", /* VK_PRIOR 0x21 */ | |
4613 | "next", /* VK_NEXT 0x22 */ | |
4614 | "end", /* VK_END 0x23 */ | |
4615 | "home", /* VK_HOME 0x24 */ | |
4616 | "left", /* VK_LEFT 0x25 */ | |
4617 | "up", /* VK_UP 0x26 */ | |
4618 | "right", /* VK_RIGHT 0x27 */ | |
4619 | "down", /* VK_DOWN 0x28 */ | |
4620 | "select", /* VK_SELECT 0x29 */ | |
4621 | "print", /* VK_PRINT 0x2A */ | |
4622 | "execute", /* VK_EXECUTE 0x2B */ | |
4623 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4624 | "insert", /* VK_INSERT 0x2D */ | |
4625 | "delete", /* VK_DELETE 0x2E */ | |
4626 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4627 | |
e98a93eb | 4628 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4629 | |
e98a93eb | 4630 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4631 | |
e98a93eb | 4632 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4633 | |
e98a93eb | 4634 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4635 | |
4636 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4637 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4638 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4639 | |
e376f90d RS |
4640 | "lwindow", /* VK_LWIN 0x5B */ |
4641 | "rwindow", /* VK_RWIN 0x5C */ | |
4642 | "apps", /* VK_APPS 0x5D */ | |
c60ee5e7 | 4643 | |
e98a93eb | 4644 | 0, 0, /* 0x5E .. 0x5F */ |
c60ee5e7 | 4645 | |
e98a93eb GV |
4646 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4647 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4648 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4649 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4650 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4651 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4652 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4653 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4654 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4655 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4656 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4657 | "kp-add", /* VK_ADD 0x6B */ | |
4658 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4659 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4660 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4661 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4662 | "f1", /* VK_F1 0x70 */ | |
4663 | "f2", /* VK_F2 0x71 */ | |
4664 | "f3", /* VK_F3 0x72 */ | |
4665 | "f4", /* VK_F4 0x73 */ | |
4666 | "f5", /* VK_F5 0x74 */ | |
4667 | "f6", /* VK_F6 0x75 */ | |
4668 | "f7", /* VK_F7 0x76 */ | |
4669 | "f8", /* VK_F8 0x77 */ | |
4670 | "f9", /* VK_F9 0x78 */ | |
4671 | "f10", /* VK_F10 0x79 */ | |
4672 | "f11", /* VK_F11 0x7A */ | |
4673 | "f12", /* VK_F12 0x7B */ | |
4674 | "f13", /* VK_F13 0x7C */ | |
4675 | "f14", /* VK_F14 0x7D */ | |
4676 | "f15", /* VK_F15 0x7E */ | |
4677 | "f16", /* VK_F16 0x7F */ | |
4678 | "f17", /* VK_F17 0x80 */ | |
4679 | "f18", /* VK_F18 0x81 */ | |
4680 | "f19", /* VK_F19 0x82 */ | |
4681 | "f20", /* VK_F20 0x83 */ | |
4682 | "f21", /* VK_F21 0x84 */ | |
4683 | "f22", /* VK_F22 0x85 */ | |
4684 | "f23", /* VK_F23 0x86 */ | |
4685 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4686 | |
e98a93eb GV |
4687 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4688 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4689 | |
e98a93eb GV |
4690 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4691 | "scroll", /* VK_SCROLL 0x91 */ | |
c60ee5e7 | 4692 | |
e376f90d RS |
4693 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4694 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4695 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4696 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4697 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4698 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4699 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4700 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4701 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4702 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4703 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4704 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4705 | ||
4706 | 0, 0, /* 0x9E .. 0x9F */ | |
4707 | ||
e98a93eb GV |
4708 | /* |
4709 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4710 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4711 | * No other API or message will distinguish left and right keys this way. |
4712 | */ | |
4713 | /* 0xA0 .. 0xEF */ | |
c60ee5e7 | 4714 | |
e98a93eb GV |
4715 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
4716 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4717 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4718 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4719 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4720 | |
e98a93eb | 4721 | /* 0xF0 .. 0xF5 */ |
c60ee5e7 | 4722 | |
e98a93eb | 4723 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4724 | |
e98a93eb GV |
4725 | "attn", /* VK_ATTN 0xF6 */ |
4726 | "crsel", /* VK_CRSEL 0xF7 */ | |
4727 | "exsel", /* VK_EXSEL 0xF8 */ | |
4728 | "ereof", /* VK_EREOF 0xF9 */ | |
4729 | "play", /* VK_PLAY 0xFA */ | |
4730 | "zoom", /* VK_ZOOM 0xFB */ | |
4731 | "noname", /* VK_NONAME 0xFC */ | |
4732 | "pa1", /* VK_PA1 0xFD */ | |
4733 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4734 | 0 /* 0xFF */ |
e98a93eb GV |
4735 | }; |
4736 | ||
04f215f0 | 4737 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4738 | |
ed3230db DL |
4739 | /* This should be dealt with in XTread_socket now, and that doesn't |
4740 | depend on the client system having the Kana syms defined. See also | |
4741 | the XK_kana_A case below. */ | |
4742 | #if 0 | |
37cd9f30 KH |
4743 | #ifdef XK_kana_A |
4744 | static char *lispy_kana_keys[] = | |
4745 | { | |
4746 | /* X Keysym value */ | |
4747 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4748 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4749 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4750 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4751 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4752 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4753 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4754 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4755 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4756 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 4757 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
4758 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
4759 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4760 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4761 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4762 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4763 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4764 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4765 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4766 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4767 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4768 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4769 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4770 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4771 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4772 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4773 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4774 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4775 | }; | |
4776 | #endif /* XK_kana_A */ | |
ed3230db | 4777 | #endif /* 0 */ |
37cd9f30 | 4778 | |
04f215f0 RS |
4779 | #define FUNCTION_KEY_OFFSET 0xff00 |
4780 | ||
284f4730 JB |
4781 | /* You'll notice that this table is arranged to be conveniently |
4782 | indexed by X Windows keysym values. */ | |
4783 | static char *lispy_function_keys[] = | |
4784 | { | |
4785 | /* X Keysym value */ | |
4786 | ||
75045dcb RS |
4787 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4788 | "backspace", "tab", "linefeed", "clear", | |
4789 | 0, "return", 0, 0, | |
4790 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4791 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4792 | 0, 0, 0, 0, |
75045dcb RS |
4793 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4794 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4795 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4796 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4797 | "eisu-toggle", /* 0xff30...3f */ | |
4798 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4799 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4800 | ||
75045dcb RS |
4801 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4802 | "down", "prior", "next", "end", | |
4803 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4804 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4805 | "print", | |
4806 | "execute", | |
4807 | "insert", | |
4808 | 0, /* 0xff64 */ | |
4809 | "undo", | |
4810 | "redo", | |
4811 | "menu", | |
4812 | "find", | |
4813 | "cancel", | |
4814 | "help", | |
4815 | "break", /* 0xff6b */ | |
4816 | ||
75045dcb RS |
4817 | 0, 0, 0, 0, |
4818 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4819 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4820 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4821 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4822 | "kp-tab", /* 0xff89 */ | |
4823 | 0, 0, 0, | |
4824 | "kp-enter", /* 0xff8d */ | |
4825 | 0, 0, 0, | |
4826 | "kp-f1", /* 0xff91 */ | |
4827 | "kp-f2", | |
4828 | "kp-f3", | |
4829 | "kp-f4", | |
872157e7 RS |
4830 | "kp-home", /* 0xff95 */ |
4831 | "kp-left", | |
4832 | "kp-up", | |
4833 | "kp-right", | |
4834 | "kp-down", | |
4835 | "kp-prior", /* kp-page-up */ | |
4836 | "kp-next", /* kp-page-down */ | |
4837 | "kp-end", | |
4838 | "kp-begin", | |
4839 | "kp-insert", | |
4840 | "kp-delete", | |
4841 | 0, /* 0xffa0 */ | |
4842 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4843 | "kp-multiply", /* 0xffaa */ |
4844 | "kp-add", | |
4845 | "kp-separator", | |
4846 | "kp-subtract", | |
4847 | "kp-decimal", | |
4848 | "kp-divide", /* 0xffaf */ | |
4849 | "kp-0", /* 0xffb0 */ | |
4850 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4851 | 0, /* 0xffba */ | |
4852 | 0, 0, | |
4853 | "kp-equal", /* 0xffbd */ | |
4854 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4855 | "f2", |
4856 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4857 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4858 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4859 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4860 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4861 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4862 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4863 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4864 | }; |
284f4730 | 4865 | |
04f215f0 RS |
4866 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4867 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4868 | ||
4869 | static char *iso_lispy_function_keys[] = | |
4870 | { | |
4871 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4872 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4873 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4874 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4875 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
4876 | "iso-move-line-up", "iso-move-line-down", |
4877 | "iso-partial-line-up", "iso-partial-line-down", | |
4878 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
4879 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
4880 | "iso-release-margin-left", "iso-release-margin-right", | |
4881 | "iso-release-both-margins", | |
4882 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4883 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4884 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4885 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4886 | }; | |
4887 | ||
4888 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4889 | |
8e1e4240 | 4890 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4891 | |
8006e4bb JR |
4892 | static char *lispy_wheel_names[] = |
4893 | { | |
4894 | "wheel-up", "wheel-down" | |
4895 | }; | |
4896 | ||
a24dc617 RS |
4897 | /* drag-n-drop events are generated when a set of selected files are |
4898 | dragged from another application and dropped onto an Emacs window. */ | |
4899 | static char *lispy_drag_n_drop_names[] = | |
4900 | { | |
4901 | "drag-n-drop" | |
4902 | }; | |
4903 | ||
3c370943 | 4904 | /* Scroll bar parts. */ |
4bb994d1 | 4905 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4906 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4907 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4908 | |
3c370943 JB |
4909 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4910 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4911 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4912 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4913 | }; |
4914 | ||
5bf68f6e AS |
4915 | /* User signal events. */ |
4916 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4917 | ||
4918 | Lisp_Object *lispy_user_signals[] = | |
4919 | { | |
4920 | &Qusr1_signal, &Qusr2_signal | |
4921 | }; | |
4922 | ||
4bb994d1 | 4923 | |
7b4aedb9 | 4924 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4925 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4926 | |
4927 | The elements have the form | |
4928 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4929 | where REST is the cdr of a position as it would be reported in the event. | |
4930 | ||
4931 | The make_lispy_event function stores positions here to tell the | |
4932 | difference between click and drag events, and to store the starting | |
4933 | location to be included in drag events. */ | |
4934 | ||
4935 | static Lisp_Object button_down_location; | |
88cb0656 | 4936 | |
fbcd35bd JB |
4937 | /* Information about the most recent up-going button event: Which |
4938 | button, what location, and what time. */ | |
4939 | ||
559f9d04 RS |
4940 | static int last_mouse_button; |
4941 | static int last_mouse_x; | |
4942 | static int last_mouse_y; | |
4943 | static unsigned long button_down_time; | |
fbcd35bd | 4944 | |
222d557c GM |
4945 | /* The maximum time between clicks to make a double-click, or Qnil to |
4946 | disable double-click detection, or Qt for no time limit. */ | |
4947 | ||
564dc952 | 4948 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4949 | |
222d557c GM |
4950 | /* Maximum number of pixels the mouse may be moved between clicks |
4951 | to make a double-click. */ | |
4952 | ||
31ade731 | 4953 | EMACS_INT double_click_fuzz; |
222d557c | 4954 | |
fbcd35bd JB |
4955 | /* The number of clicks in this multiple-click. */ |
4956 | ||
4957 | int double_click_count; | |
4958 | ||
3d566707 KS |
4959 | /* Return position of a mouse click or wheel event */ |
4960 | ||
4961 | static Lisp_Object | |
4962 | make_lispy_position (f, x, y, time) | |
4963 | struct frame *f; | |
4964 | Lisp_Object *x, *y; | |
4965 | unsigned long time; | |
4966 | { | |
4967 | Lisp_Object window; | |
4968 | enum window_part part; | |
4969 | Lisp_Object posn = Qnil; | |
4970 | Lisp_Object extra_info = Qnil; | |
4971 | int wx, wy; | |
4972 | ||
4973 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
4974 | if (f) | |
4975 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
4976 | &part, &wx, &wy, 0); | |
4977 | else | |
4978 | window = Qnil; | |
4979 | ||
4980 | if (WINDOWP (window)) | |
4981 | { | |
4982 | /* It's a click in window window at frame coordinates (x,y) */ | |
4983 | struct window *w = XWINDOW (window); | |
4984 | Lisp_Object object = Qnil; | |
4985 | int textpos = -1, rx = -1, ry = -1; | |
4986 | ||
4987 | /* Set event coordinates to window-relative coordinates | |
4988 | for constructing the Lisp event below. */ | |
4989 | XSETINT (*x, wx); | |
4990 | XSETINT (*y, wy); | |
4991 | ||
4992 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
4993 | { | |
4994 | /* Mode line or header line. Look for a string under | |
4995 | the mouse that may have a `local-map' property. */ | |
4996 | Lisp_Object string; | |
4997 | int charpos; | |
4998 | ||
4999 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5000 | rx = wx, ry = wy; | |
5001 | string = mode_line_string (w, &rx, &ry, part, &charpos); | |
5002 | if (STRINGP (string)) | |
5003 | object = Fcons (string, make_number (charpos)); | |
5004 | if (w == XWINDOW (selected_window)) | |
5005 | textpos = PT; | |
5006 | else | |
5007 | textpos = XMARKER (w->pointm)->charpos; | |
5008 | } | |
5009 | else if (part == ON_VERTICAL_BORDER) | |
5010 | { | |
5011 | posn = Qvertical_line; | |
5012 | wx = -1; | |
5013 | } | |
5014 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5015 | { | |
5016 | Lisp_Object string; | |
5017 | int charpos; | |
5018 | ||
5019 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
5020 | rx = wx, ry = wy; | |
5021 | string = marginal_area_string (w, &rx, &ry, part, &charpos); | |
5022 | if (STRINGP (string)) | |
5023 | object = Fcons (string, make_number (charpos)); | |
5024 | } | |
5025 | else if (part == ON_LEFT_FRINGE || part == ON_RIGHT_FRINGE) | |
5026 | { | |
5027 | posn = (part == ON_LEFT_FRINGE) ? Qleft_fringe : Qright_fringe; | |
5028 | rx = 0; | |
5029 | } | |
5030 | ||
5031 | if (textpos < 0) | |
5032 | { | |
5033 | Lisp_Object string; | |
5034 | struct display_pos p; | |
5035 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); | |
5036 | buffer_posn_from_coords (w, &wx, &wy, &string, &p); | |
5037 | textpos = CHARPOS (p.pos); | |
5038 | if (rx < 0) | |
5039 | rx = wx; | |
5040 | if (ry < 0) | |
5041 | ry = wy; | |
5042 | ||
5043 | if (NILP (posn)) | |
5044 | { | |
5045 | posn = make_number (textpos); | |
5046 | if (STRINGP (string)) | |
5047 | object = Fcons (string, | |
5048 | make_number (CHARPOS (p.string_pos))); | |
5049 | } | |
5050 | } | |
5051 | ||
5052 | extra_info = Fcons (object, | |
5053 | Fcons (make_number (textpos), | |
5054 | Fcons (Fcons (make_number (rx), | |
5055 | make_number (ry)), | |
5056 | Qnil))); | |
5057 | } | |
5058 | else if (f != 0) | |
5059 | { | |
5060 | XSETFRAME (window, f); | |
5061 | } | |
5062 | else | |
5063 | { | |
5064 | window = Qnil; | |
5065 | XSETFASTINT (*x, 0); | |
5066 | XSETFASTINT (*y, 0); | |
5067 | } | |
5068 | ||
5069 | return Fcons (window, | |
5070 | Fcons (posn, | |
5071 | Fcons (Fcons (*x, *y), | |
5072 | Fcons (make_number (time), | |
5073 | extra_info)))); | |
5074 | } | |
5075 | ||
284f4730 JB |
5076 | /* Given a struct input_event, build the lisp event which represents |
5077 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5078 | movement buffer, which should have a movement event in it. |
5079 | ||
5080 | Note that events must be passed to this function in the order they | |
5081 | are received; this function stores the location of button presses | |
5082 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5083 | |
5084 | static Lisp_Object | |
5085 | make_lispy_event (event) | |
5086 | struct input_event *event; | |
5087 | { | |
79a7046c RS |
5088 | int i; |
5089 | ||
0220c518 | 5090 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5091 | { |
284f4730 | 5092 | /* A simple keystroke. */ |
3b8f9651 | 5093 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 5094 | { |
9343ab07 | 5095 | Lisp_Object lispy_c; |
e9bf89a0 | 5096 | int c = event->code & 0377; |
5a1c6df8 JB |
5097 | /* Turn ASCII characters into control characters |
5098 | when proper. */ | |
5099 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
5100 | c = make_ctrl_char (c); |
5101 | ||
5102 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
5103 | just above, and the shift key was taken care of by the X code, | |
5104 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
5105 | c |= (event->modifiers |
5106 | & (meta_modifier | alt_modifier | |
5107 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
5108 | /* Distinguish Shift-SPC from SPC. */ |
5109 | if ((event->code & 0377) == 040 | |
5110 | && event->modifiers & shift_modifier) | |
5111 | c |= shift_modifier; | |
559f9d04 | 5112 | button_down_time = 0; |
bb9e9bed | 5113 | XSETFASTINT (lispy_c, c); |
9343ab07 | 5114 | return lispy_c; |
86e5706b | 5115 | } |
284f4730 | 5116 | |
3b8f9651 | 5117 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5118 | { |
5119 | Lisp_Object lispy_c; | |
24d80a06 | 5120 | int c = event->code; |
a50e723f | 5121 | |
24d80a06 SM |
5122 | /* Add in the other modifier bits. We took care of ctrl_modifier |
5123 | just above, and the shift key was taken care of by the X code, | |
5124 | and applied to control characters by make_ctrl_char. */ | |
5125 | c |= (event->modifiers | |
5126 | & (meta_modifier | alt_modifier | |
5127 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
5128 | /* What about the `shift' modifier ? */ | |
5129 | button_down_time = 0; | |
5130 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5131 | return lispy_c; |
5132 | } | |
5133 | ||
284f4730 JB |
5134 | /* A function key. The symbol may need to have modifier prefixes |
5135 | tacked onto it. */ | |
3b8f9651 | 5136 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5137 | button_down_time = 0; |
e9bf89a0 RS |
5138 | |
5139 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5140 | if (event->code == lispy_accent_codes[i]) | |
5141 | return modify_event_symbol (i, | |
5142 | event->modifiers, | |
80e4aa30 | 5143 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5144 | lispy_accent_keys, &accent_key_syms, |
5145 | (sizeof (lispy_accent_keys) | |
5146 | / sizeof (lispy_accent_keys[0]))); | |
5147 | ||
ed3230db | 5148 | #if 0 |
37cd9f30 KH |
5149 | #ifdef XK_kana_A |
5150 | if (event->code >= 0x400 && event->code < 0x500) | |
5151 | return modify_event_symbol (event->code - 0x400, | |
5152 | event->modifiers & ~shift_modifier, | |
5153 | Qfunction_key, Qnil, | |
5154 | lispy_kana_keys, &func_key_syms, | |
5155 | (sizeof (lispy_kana_keys) | |
5156 | / sizeof (lispy_kana_keys[0]))); | |
5157 | #endif /* XK_kana_A */ | |
ed3230db | 5158 | #endif /* 0 */ |
37cd9f30 | 5159 | |
111c4138 | 5160 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5161 | if (event->code < FUNCTION_KEY_OFFSET |
5162 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5163 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5164 | event->modifiers, | |
5165 | Qfunction_key, Qnil, | |
5166 | iso_lispy_function_keys, &func_key_syms, | |
5167 | (sizeof (iso_lispy_function_keys) | |
5168 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5169 | #endif |
656280a6 | 5170 | |
4c8bc894 SM |
5171 | /* Handle system-specific or unknown keysyms. */ |
5172 | if (event->code & (1 << 28) | |
5173 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5174 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5175 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5176 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5177 | { |
4c8bc894 SM |
5178 | /* We need to use an alist rather than a vector as the cache |
5179 | since we can't make a vector long enuf. */ | |
5180 | if (NILP (current_kboard->system_key_syms)) | |
5181 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5182 | return modify_event_symbol (event->code, | |
5183 | event->modifiers, | |
5184 | Qfunction_key, | |
5185 | current_kboard->Vsystem_key_alist, | |
5186 | 0, ¤t_kboard->system_key_syms, | |
5187 | (unsigned) -1); | |
656280a6 | 5188 | } |
656280a6 GM |
5189 | |
5190 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5191 | event->modifiers, | |
5192 | Qfunction_key, Qnil, | |
5193 | lispy_function_keys, &func_key_syms, | |
5194 | (sizeof (lispy_function_keys) | |
5195 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5196 | |
514354e9 | 5197 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5198 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5199 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5200 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5201 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5202 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5203 | #endif |
284f4730 | 5204 | { |
e9bf89a0 | 5205 | int button = event->code; |
559f9d04 | 5206 | int is_double; |
7b4aedb9 | 5207 | Lisp_Object position; |
dbc4e1c1 JB |
5208 | Lisp_Object *start_pos_ptr; |
5209 | Lisp_Object start_pos; | |
284f4730 | 5210 | |
8c907a56 GM |
5211 | position = Qnil; |
5212 | ||
7b4aedb9 | 5213 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5214 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5215 | { |
c5cf2109 | 5216 | struct frame *f = XFRAME (event->frame_or_window); |
3d566707 | 5217 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
9e20143a | 5218 | int row, column; |
3d566707 | 5219 | #endif |
9e20143a | 5220 | |
5da3133a RS |
5221 | /* Ignore mouse events that were made on frame that |
5222 | have been deleted. */ | |
5223 | if (! FRAME_LIVE_P (f)) | |
5224 | return Qnil; | |
5225 | ||
3d566707 | 5226 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
7ee32cda GM |
5227 | /* EVENT->x and EVENT->y are frame-relative pixel |
5228 | coordinates at this place. Under old redisplay, COLUMN | |
5229 | and ROW are set to frame relative glyph coordinates | |
5230 | which are then used to determine whether this click is | |
5231 | in a menu (non-toolkit version). */ | |
5232 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5233 | &column, &row, NULL, 1); | |
7b4aedb9 | 5234 | |
eef045bf RS |
5235 | /* In the non-toolkit version, clicks on the menu bar |
5236 | are ordinary button events in the event buffer. | |
5237 | Distinguish them, and invoke the menu. | |
5238 | ||
5239 | (In the toolkit version, the toolkit handles the menu bar | |
5240 | and Emacs doesn't know about it until after the user | |
5241 | makes a selection.) */ | |
2ee250ec RS |
5242 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5243 | && (event->modifiers & down_modifier)) | |
bb936752 | 5244 | { |
b7c49376 | 5245 | Lisp_Object items, item; |
0a0e8fe6 RS |
5246 | int hpos; |
5247 | int i; | |
5248 | ||
2ee250ec | 5249 | #if 0 |
0a0e8fe6 RS |
5250 | /* Activate the menu bar on the down event. If the |
5251 | up event comes in before the menu code can deal with it, | |
5252 | just ignore it. */ | |
5253 | if (! (event->modifiers & down_modifier)) | |
5254 | return Qnil; | |
2ee250ec | 5255 | #endif |
0aafc975 | 5256 | |
7ee32cda | 5257 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5258 | item = Qnil; |
5ec75a55 | 5259 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5260 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5261 | { |
5262 | Lisp_Object pos, string; | |
129004d3 GM |
5263 | string = AREF (items, i + 1); |
5264 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5265 | if (NILP (string)) |
5266 | break; | |
9e20143a | 5267 | if (column >= XINT (pos) |
d5db4077 | 5268 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5269 | { |
129004d3 | 5270 | item = AREF (items, i); |
b7c49376 RS |
5271 | break; |
5272 | } | |
5ec75a55 | 5273 | } |
9e20143a | 5274 | |
7ee32cda GM |
5275 | /* ELisp manual 2.4b says (x y) are window relative but |
5276 | code says they are frame-relative. */ | |
5ec75a55 RS |
5277 | position |
5278 | = Fcons (event->frame_or_window, | |
5279 | Fcons (Qmenu_bar, | |
5280 | Fcons (Fcons (event->x, event->y), | |
5281 | Fcons (make_number (event->timestamp), | |
5282 | Qnil)))); | |
5283 | ||
b7c49376 | 5284 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5285 | } |
488dd4c4 | 5286 | #endif /* not USE_X_TOOLKIT && not USE_GTK */ |
0aafc975 | 5287 | |
3d566707 KS |
5288 | position = make_lispy_position (f, &event->x, &event->y, |
5289 | event->timestamp); | |
284f4730 | 5290 | } |
7ee32cda | 5291 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5292 | else |
88cb0656 | 5293 | { |
7ee32cda | 5294 | /* It's a scrollbar click. */ |
3d566707 | 5295 | Lisp_Object window; |
9e20143a RS |
5296 | Lisp_Object portion_whole; |
5297 | Lisp_Object part; | |
5298 | ||
5299 | window = event->frame_or_window; | |
5300 | portion_whole = Fcons (event->x, event->y); | |
5301 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5302 | |
db08707d RS |
5303 | position |
5304 | = Fcons (window, | |
5305 | Fcons (Qvertical_scroll_bar, | |
5306 | Fcons (portion_whole, | |
5307 | Fcons (make_number (event->timestamp), | |
5308 | Fcons (part, Qnil))))); | |
88cb0656 | 5309 | } |
7ee32cda | 5310 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5311 | |
129004d3 | 5312 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5313 | { |
5314 | button_down_location = larger_vector (button_down_location, | |
5315 | button + 1, Qnil); | |
5316 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5317 | } | |
c60ee5e7 | 5318 | |
129004d3 | 5319 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5320 | start_pos = *start_pos_ptr; |
5321 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5322 | |
c5cf2109 GM |
5323 | { |
5324 | /* On window-system frames, use the value of | |
5325 | double-click-fuzz as is. On other frames, interpret it | |
5326 | as a multiple of 1/8 characters. */ | |
5327 | struct frame *f; | |
5328 | int fuzz; | |
5329 | ||
5330 | if (WINDOWP (event->frame_or_window)) | |
5331 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5332 | else if (FRAMEP (event->frame_or_window)) | |
5333 | f = XFRAME (event->frame_or_window); | |
5334 | else | |
5335 | abort (); | |
5336 | ||
5337 | if (FRAME_WINDOW_P (f)) | |
5338 | fuzz = double_click_fuzz; | |
5339 | else | |
5340 | fuzz = double_click_fuzz / 8; | |
5341 | ||
5342 | is_double = (button == last_mouse_button | |
5343 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5344 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5345 | && button_down_time != 0 | |
5346 | && (EQ (Vdouble_click_time, Qt) | |
5347 | || (INTEGERP (Vdouble_click_time) | |
5348 | && ((int)(event->timestamp - button_down_time) | |
5349 | < XINT (Vdouble_click_time))))); | |
5350 | } | |
c60ee5e7 | 5351 | |
559f9d04 RS |
5352 | last_mouse_button = button; |
5353 | last_mouse_x = XINT (event->x); | |
5354 | last_mouse_y = XINT (event->y); | |
5355 | ||
7b4aedb9 JB |
5356 | /* If this is a button press, squirrel away the location, so |
5357 | we can decide later whether it was a click or a drag. */ | |
5358 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5359 | { |
5360 | if (is_double) | |
5361 | { | |
5362 | double_click_count++; | |
5363 | event->modifiers |= ((double_click_count > 2) | |
5364 | ? triple_modifier | |
5365 | : double_modifier); | |
5366 | } | |
5367 | else | |
5368 | double_click_count = 1; | |
5369 | button_down_time = event->timestamp; | |
5370 | *start_pos_ptr = Fcopy_alist (position); | |
5371 | } | |
7b4aedb9 | 5372 | |
88cb0656 | 5373 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5374 | see if this was a click or a drag. */ |
88cb0656 JB |
5375 | else if (event->modifiers & up_modifier) |
5376 | { | |
129004d3 GM |
5377 | /* If we did not see a down before this up, ignore the up. |
5378 | Probably this happened because the down event chose a | |
5379 | menu item. It would be an annoyance to treat the | |
5380 | release of the button that chose the menu item as a | |
5381 | separate event. */ | |
48e416d4 | 5382 | |
8c18cbfb | 5383 | if (!CONSP (start_pos)) |
48e416d4 RS |
5384 | return Qnil; |
5385 | ||
88cb0656 | 5386 | event->modifiers &= ~up_modifier; |
48e416d4 | 5387 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5388 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5389 | event->modifiers |= click_modifier; |
5390 | else | |
48e416d4 | 5391 | #endif |
dbc4e1c1 | 5392 | { |
9b8eb840 | 5393 | Lisp_Object down; |
d31053f9 | 5394 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5395 | |
d31053f9 RS |
5396 | /* The third element of every position |
5397 | should be the (x,y) pair. */ | |
5398 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5399 | if (CONSP (down) |
5400 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5401 | { |
7a6a97d7 SM |
5402 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5403 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5404 | } |
5405 | ||
5406 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5407 | && ydiff < double_click_fuzz | |
5408 | && ydiff > - double_click_fuzz) | |
5409 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5410 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5411 | else |
5412 | { | |
d31053f9 RS |
5413 | button_down_time = 0; |
5414 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5415 | } |
c60ee5e7 | 5416 | |
bc536d84 RS |
5417 | /* Don't check is_double; treat this as multiple |
5418 | if the down-event was multiple. */ | |
5419 | if (double_click_count > 1) | |
5420 | event->modifiers |= ((double_click_count > 2) | |
5421 | ? triple_modifier | |
5422 | : double_modifier); | |
dbc4e1c1 | 5423 | } |
88cb0656 JB |
5424 | } |
5425 | else | |
5426 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5427 | the up_modifier set. */ |
88cb0656 JB |
5428 | abort (); |
5429 | ||
88cb0656 | 5430 | { |
7b4aedb9 | 5431 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5432 | Lisp_Object head; |
5433 | ||
5434 | head = modify_event_symbol (button, | |
5435 | event->modifiers, | |
8e1e4240 GM |
5436 | Qmouse_click, Vlispy_mouse_stem, |
5437 | NULL, | |
5438 | &mouse_syms, | |
5439 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5440 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5441 | return Fcons (head, |
5442 | Fcons (start_pos, | |
5443 | Fcons (position, | |
5444 | Qnil))); | |
fbcd35bd JB |
5445 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5446 | return Fcons (head, | |
5447 | Fcons (position, | |
5448 | Fcons (make_number (double_click_count), | |
5449 | Qnil))); | |
88cb0656 JB |
5450 | else |
5451 | return Fcons (head, | |
7b4aedb9 | 5452 | Fcons (position, |
88cb0656 JB |
5453 | Qnil)); |
5454 | } | |
284f4730 | 5455 | } |
db08707d | 5456 | |
8006e4bb JR |
5457 | case WHEEL_EVENT: |
5458 | { | |
5459 | Lisp_Object position; | |
8006e4bb JR |
5460 | Lisp_Object head; |
5461 | ||
87d386ff | 5462 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5463 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5464 | |
5465 | /* Ignore wheel events that were made on frame that have been | |
5466 | deleted. */ | |
5467 | if (! FRAME_LIVE_P (f)) | |
5468 | return Qnil; | |
5469 | ||
3d566707 KS |
5470 | position = make_lispy_position (f, &event->x, &event->y, |
5471 | event->timestamp); | |
87d386ff JR |
5472 | |
5473 | /* Set double or triple modifiers to indicate the wheel speed. */ | |
5474 | { | |
5475 | /* On window-system frames, use the value of | |
5476 | double-click-fuzz as is. On other frames, interpret it | |
5477 | as a multiple of 1/8 characters. */ | |
5478 | struct frame *f; | |
5479 | int fuzz; | |
5480 | int is_double; | |
5481 | ||
5482 | if (WINDOWP (event->frame_or_window)) | |
5483 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5484 | else if (FRAMEP (event->frame_or_window)) | |
5485 | f = XFRAME (event->frame_or_window); | |
5486 | else | |
5487 | abort (); | |
5488 | ||
5489 | if (FRAME_WINDOW_P (f)) | |
5490 | fuzz = double_click_fuzz; | |
5491 | else | |
5492 | fuzz = double_click_fuzz / 8; | |
5493 | ||
5494 | is_double = (last_mouse_button < 0 | |
5495 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5496 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5497 | && button_down_time != 0 | |
5498 | && (EQ (Vdouble_click_time, Qt) | |
5499 | || (INTEGERP (Vdouble_click_time) | |
5500 | && ((int)(event->timestamp - button_down_time) | |
5501 | < XINT (Vdouble_click_time))))); | |
5502 | if (is_double) | |
5503 | { | |
5504 | double_click_count++; | |
5505 | event->modifiers |= ((double_click_count > 2) | |
5506 | ? triple_modifier | |
5507 | : double_modifier); | |
5508 | } | |
5509 | else | |
5510 | { | |
5511 | double_click_count = 1; | |
5512 | event->modifiers |= click_modifier; | |
5513 | } | |
5514 | ||
5515 | button_down_time = event->timestamp; | |
5516 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5517 | last_mouse_button = -1; | |
5518 | last_mouse_x = XINT (event->x); | |
5519 | last_mouse_y = XINT (event->y); | |
5520 | } | |
5521 | ||
5522 | { | |
5523 | int symbol_num; | |
5524 | ||
5525 | if (event->modifiers & up_modifier) | |
5526 | { | |
5527 | /* Emit a wheel-up event. */ | |
5528 | event->modifiers &= ~up_modifier; | |
5529 | symbol_num = 0; | |
5530 | } | |
5531 | else if (event->modifiers & down_modifier) | |
5532 | { | |
5533 | /* Emit a wheel-down event. */ | |
5534 | event->modifiers &= ~down_modifier; | |
5535 | symbol_num = 1; | |
5536 | } | |
5537 | else | |
5538 | /* Every wheel event should either have the down_modifier or | |
5539 | the up_modifier set. */ | |
5540 | abort (); | |
5541 | ||
5542 | /* Get the symbol we should use for the wheel event. */ | |
5543 | head = modify_event_symbol (symbol_num, | |
5544 | event->modifiers, | |
5545 | Qmouse_click, | |
5546 | Qnil, | |
5547 | lispy_wheel_names, | |
5548 | &wheel_syms, | |
5549 | ASIZE (wheel_syms)); | |
5550 | } | |
5551 | ||
5552 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5553 | return Fcons (head, | |
5554 | Fcons (position, | |
5555 | Fcons (make_number (double_click_count), | |
5556 | Qnil))); | |
5557 | else | |
5558 | return Fcons (head, | |
5559 | Fcons (position, | |
5560 | Qnil)); | |
8006e4bb JR |
5561 | } |
5562 | ||
5563 | ||
05be3964 | 5564 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5565 | |
5566 | /* We don't have down and up events if using toolkit scroll bars, | |
5567 | so make this always a click event. Store in the `part' of | |
5568 | the Lisp event a symbol which maps to the following actions: | |
5569 | ||
5570 | `above_handle' page up | |
5571 | `below_handle' page down | |
5572 | `up' line up | |
5573 | `down' line down | |
5574 | `top' top of buffer | |
5575 | `bottom' bottom of buffer | |
5576 | `handle' thumb has been dragged. | |
5577 | `end-scroll' end of interaction with scroll bar | |
5578 | ||
5579 | The incoming input_event contains in its `part' member an | |
5580 | index of type `enum scroll_bar_part' which we can use as an | |
5581 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 5582 | |
3b8f9651 | 5583 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5584 | { |
5585 | Lisp_Object position, head, window, portion_whole, part; | |
5586 | ||
5587 | window = event->frame_or_window; | |
5588 | portion_whole = Fcons (event->x, event->y); | |
5589 | part = *scroll_bar_parts[(int) event->part]; | |
5590 | ||
5591 | position | |
5592 | = Fcons (window, | |
5593 | Fcons (Qvertical_scroll_bar, | |
5594 | Fcons (portion_whole, | |
5595 | Fcons (make_number (event->timestamp), | |
5596 | Fcons (part, Qnil))))); | |
5597 | ||
5598 | /* Always treat scroll bar events as clicks. */ | |
5599 | event->modifiers |= click_modifier; | |
05be3964 | 5600 | event->modifiers &= ~up_modifier; |
7ee32cda | 5601 | |
257f40f2 JD |
5602 | if (event->code >= ASIZE (mouse_syms)) |
5603 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
5604 | ||
7ee32cda GM |
5605 | /* Get the symbol we should use for the mouse click. */ |
5606 | head = modify_event_symbol (event->code, | |
5607 | event->modifiers, | |
14e40288 | 5608 | Qmouse_click, |
8e1e4240 GM |
5609 | Vlispy_mouse_stem, |
5610 | NULL, &mouse_syms, | |
5611 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5612 | return Fcons (head, Fcons (position, Qnil)); |
5613 | } | |
c60ee5e7 | 5614 | |
7ee32cda GM |
5615 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
5616 | ||
db08707d | 5617 | #ifdef WINDOWSNT |
3b8f9651 | 5618 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5619 | { |
5620 | int button = event->code; | |
5621 | int is_double; | |
5622 | Lisp_Object position; | |
5623 | Lisp_Object *start_pos_ptr; | |
5624 | Lisp_Object start_pos; | |
5625 | ||
db08707d RS |
5626 | { |
5627 | Lisp_Object window; | |
5628 | Lisp_Object portion_whole; | |
5629 | Lisp_Object part; | |
5630 | ||
5631 | window = event->frame_or_window; | |
5632 | portion_whole = Fcons (event->x, event->y); | |
5633 | part = *scroll_bar_parts[(int) event->part]; | |
5634 | ||
e8886a1d RS |
5635 | position |
5636 | = Fcons (window, | |
5637 | Fcons (Qvertical_scroll_bar, | |
5638 | Fcons (portion_whole, | |
5639 | Fcons (make_number (event->timestamp), | |
5640 | Fcons (part, Qnil))))); | |
db08707d RS |
5641 | } |
5642 | ||
fbd6baed | 5643 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5644 | event->modifiers |= click_modifier; |
5645 | ||
5646 | { | |
5647 | /* Get the symbol we should use for the mouse click. */ | |
5648 | Lisp_Object head; | |
5649 | ||
5650 | head = modify_event_symbol (button, | |
5651 | event->modifiers, | |
c60ee5e7 | 5652 | Qmouse_click, |
8e1e4240 GM |
5653 | Vlispy_mouse_stem, |
5654 | NULL, &mouse_syms, | |
5655 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5656 | return Fcons (head, |
5657 | Fcons (position, | |
5658 | Qnil)); | |
5659 | } | |
5660 | } | |
1e7c162f | 5661 | #endif /* WINDOWSNT */ |
a24dc617 | 5662 | |
3b8f9651 | 5663 | case DRAG_N_DROP_EVENT: |
a24dc617 | 5664 | { |
a24dc617 | 5665 | FRAME_PTR f; |
3d566707 | 5666 | Lisp_Object head, position; |
a24dc617 | 5667 | Lisp_Object files; |
a24dc617 RS |
5668 | |
5669 | /* The frame_or_window field should be a cons of the frame in | |
5670 | which the event occurred and a list of the filenames | |
5671 | dropped. */ | |
5672 | if (! CONSP (event->frame_or_window)) | |
5673 | abort (); | |
5674 | ||
7539e11f KR |
5675 | f = XFRAME (XCAR (event->frame_or_window)); |
5676 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5677 | |
5678 | /* Ignore mouse events that were made on frames that | |
5679 | have been deleted. */ | |
5680 | if (! FRAME_LIVE_P (f)) | |
5681 | return Qnil; | |
afabdbe5 | 5682 | |
3d566707 KS |
5683 | position = make_lispy_position (f, &event->x, &event->y, |
5684 | event->timestamp); | |
5685 | ||
5686 | head = modify_event_symbol (0, event->modifiers, | |
5687 | Qdrag_n_drop, Qnil, | |
5688 | lispy_drag_n_drop_names, | |
5689 | &drag_n_drop_syms, 1); | |
5690 | return Fcons (head, | |
5691 | Fcons (position, | |
5692 | Fcons (files, | |
5693 | Qnil))); | |
a24dc617 | 5694 | } |
514354e9 | 5695 | #endif /* HAVE_MOUSE */ |
284f4730 | 5696 | |
488dd4c4 JD |
5697 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
5698 | || defined (USE_GTK) | |
da8f7368 GM |
5699 | case MENU_BAR_EVENT: |
5700 | if (EQ (event->arg, event->frame_or_window)) | |
5701 | /* This is the prefix key. We translate this to | |
5702 | `(menu_bar)' because the code in keyboard.c for menu | |
5703 | events, which we use, relies on this. */ | |
5704 | return Fcons (Qmenu_bar, Qnil); | |
5705 | return event->arg; | |
2470a66f KH |
5706 | #endif |
5707 | ||
a4e19f6e SM |
5708 | case SELECT_WINDOW_EVENT: |
5709 | /* Make an event (select-window (WINDOW)). */ | |
5710 | return Fcons (Qselect_window, | |
5711 | Fcons (Fcons (event->frame_or_window, Qnil), | |
5712 | Qnil)); | |
5713 | ||
9ea173e8 | 5714 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5715 | if (EQ (event->arg, event->frame_or_window)) |
5716 | /* This is the prefix key. We translate this to | |
27fd22dc | 5717 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5718 | events, which we use, relies on this. */ |
5719 | return Fcons (Qtool_bar, Qnil); | |
5720 | else if (SYMBOLP (event->arg)) | |
5721 | return apply_modifiers (event->modifiers, event->arg); | |
5722 | return event->arg; | |
5723 | ||
5724 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5725 | /* A user signal. */ |
5726 | return *lispy_user_signals[event->code]; | |
c60ee5e7 | 5727 | |
3b8f9651 | 5728 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 5729 | return Qsave_session; |
c60ee5e7 | 5730 | |
284f4730 JB |
5731 | /* The 'kind' field of the event is something we don't recognize. */ |
5732 | default: | |
48e416d4 | 5733 | abort (); |
284f4730 JB |
5734 | } |
5735 | } | |
5736 | ||
514354e9 | 5737 | #ifdef HAVE_MOUSE |
6cbff1cb | 5738 | |
284f4730 | 5739 | static Lisp_Object |
7b4aedb9 | 5740 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5741 | FRAME_PTR frame; |
7b4aedb9 | 5742 | Lisp_Object bar_window; |
3c370943 | 5743 | enum scroll_bar_part part; |
284f4730 | 5744 | Lisp_Object x, y; |
e5d77022 | 5745 | unsigned long time; |
284f4730 | 5746 | { |
3c370943 | 5747 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5748 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5749 | { |
9b8eb840 | 5750 | Lisp_Object part_sym; |
4bb994d1 | 5751 | |
9b8eb840 | 5752 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5753 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5754 | (Fcons (Fcons (bar_window, |
3c370943 | 5755 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5756 | Fcons (Fcons (x, y), |
5757 | Fcons (make_number (time), | |
cb5df6ae | 5758 | Fcons (part_sym, |
4bb994d1 JB |
5759 | Qnil))))), |
5760 | Qnil))); | |
5761 | } | |
5762 | ||
5763 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5764 | else |
5765 | { | |
3d566707 | 5766 | Lisp_Object position; |
4bb994d1 | 5767 | |
3d566707 | 5768 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 5769 | |
4bb994d1 | 5770 | return Fcons (Qmouse_movement, |
3d566707 | 5771 | Fcons (position, |
4bb994d1 JB |
5772 | Qnil)); |
5773 | } | |
284f4730 JB |
5774 | } |
5775 | ||
514354e9 | 5776 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5777 | |
cd21b839 JB |
5778 | /* Construct a switch frame event. */ |
5779 | static Lisp_Object | |
5780 | make_lispy_switch_frame (frame) | |
5781 | Lisp_Object frame; | |
5782 | { | |
5783 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5784 | } | |
0a7f1fc0 JB |
5785 | \f |
5786 | /* Manipulating modifiers. */ | |
284f4730 | 5787 | |
0a7f1fc0 | 5788 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5789 | |
0a7f1fc0 JB |
5790 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5791 | SYMBOL's name of the end of the modifiers; the string from this | |
5792 | position is the unmodified symbol name. | |
284f4730 | 5793 | |
0a7f1fc0 | 5794 | This doesn't use any caches. */ |
6da3dd3a | 5795 | |
0a7f1fc0 JB |
5796 | static int |
5797 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5798 | Lisp_Object symbol; |
0a7f1fc0 | 5799 | int *modifier_end; |
284f4730 | 5800 | { |
1b049b51 | 5801 | Lisp_Object name; |
284f4730 JB |
5802 | int i; |
5803 | int modifiers; | |
284f4730 | 5804 | |
b7826503 | 5805 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5806 | |
284f4730 | 5807 | modifiers = 0; |
1b049b51 | 5808 | name = SYMBOL_NAME (symbol); |
284f4730 | 5809 | |
1b049b51 | 5810 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5811 | { |
5812 | int this_mod_end = 0; | |
5813 | int this_mod = 0; | |
284f4730 | 5814 | |
6da3dd3a RS |
5815 | /* See if the name continues with a modifier word. |
5816 | Check that the word appears, but don't check what follows it. | |
5817 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5818 | |
1b049b51 | 5819 | switch (SREF (name, i)) |
6da3dd3a RS |
5820 | { |
5821 | #define SINGLE_LETTER_MOD(BIT) \ | |
5822 | (this_mod_end = i + 1, this_mod = BIT) | |
5823 | ||
6da3dd3a RS |
5824 | case 'A': |
5825 | SINGLE_LETTER_MOD (alt_modifier); | |
5826 | break; | |
284f4730 | 5827 | |
6da3dd3a RS |
5828 | case 'C': |
5829 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5830 | break; | |
284f4730 | 5831 | |
6da3dd3a RS |
5832 | case 'H': |
5833 | SINGLE_LETTER_MOD (hyper_modifier); | |
5834 | break; | |
5835 | ||
6da3dd3a RS |
5836 | case 'M': |
5837 | SINGLE_LETTER_MOD (meta_modifier); | |
5838 | break; | |
5839 | ||
6da3dd3a RS |
5840 | case 'S': |
5841 | SINGLE_LETTER_MOD (shift_modifier); | |
5842 | break; | |
5843 | ||
5844 | case 's': | |
6da3dd3a RS |
5845 | SINGLE_LETTER_MOD (super_modifier); |
5846 | break; | |
5847 | ||
0a7f1fc0 | 5848 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
5849 | |
5850 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
5851 | if (i + LEN + 1 <= SBYTES (name) \ | |
5852 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
5853 | { \ | |
5854 | this_mod_end = i + LEN; \ | |
5855 | this_mod = BIT; \ | |
5856 | } | |
5857 | ||
5858 | case 'd': | |
5859 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5860 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5861 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5862 | break; | |
5863 | ||
5864 | case 't': | |
5865 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5866 | break; | |
5867 | #undef MULTI_LETTER_MOD | |
5868 | ||
6da3dd3a RS |
5869 | } |
5870 | ||
5871 | /* If we found no modifier, stop looking for them. */ | |
5872 | if (this_mod_end == 0) | |
5873 | break; | |
5874 | ||
5875 | /* Check there is a dash after the modifier, so that it | |
5876 | really is a modifier. */ | |
1b049b51 KR |
5877 | if (this_mod_end >= SBYTES (name) |
5878 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
5879 | break; |
5880 | ||
5881 | /* This modifier is real; look for another. */ | |
5882 | modifiers |= this_mod; | |
5883 | i = this_mod_end + 1; | |
5884 | } | |
284f4730 | 5885 | |
0a7f1fc0 | 5886 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5887 | if (! (modifiers & (down_modifier | drag_modifier |
5888 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
5889 | && i + 7 == SBYTES (name) |
5890 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
5891 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
5892 | modifiers |= click_modifier; |
5893 | ||
5894 | if (modifier_end) | |
5895 | *modifier_end = i; | |
5896 | ||
5897 | return modifiers; | |
5898 | } | |
5899 | ||
0a7f1fc0 JB |
5900 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
5901 | prepended to the string BASE[0..BASE_LEN-1]. | |
5902 | This doesn't use any caches. */ | |
5903 | static Lisp_Object | |
301738ed | 5904 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
5905 | int modifiers; |
5906 | char *base; | |
301738ed | 5907 | int base_len, base_len_byte; |
0a7f1fc0 JB |
5908 | { |
5909 | /* Since BASE could contain nulls, we can't use intern here; we have | |
5910 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
5911 | reference to it. */ | |
301738ed RS |
5912 | char *new_mods |
5913 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 5914 | int mod_len; |
284f4730 | 5915 | |
284f4730 | 5916 | { |
0a7f1fc0 JB |
5917 | char *p = new_mods; |
5918 | ||
5919 | /* Only the event queue may use the `up' modifier; it should always | |
5920 | be turned into a click or drag event before presented to lisp code. */ | |
5921 | if (modifiers & up_modifier) | |
5922 | abort (); | |
5923 | ||
5924 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
5925 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
5926 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
5927 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
5928 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 5929 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
5930 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
5931 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
5932 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
5933 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
5934 | /* The click modifier is denoted by the absence of other modifiers. */ |
5935 | ||
5936 | *p = '\0'; | |
5937 | ||
5938 | mod_len = p - new_mods; | |
5939 | } | |
284f4730 | 5940 | |
0a7f1fc0 | 5941 | { |
9b8eb840 | 5942 | Lisp_Object new_name; |
df0f2ba1 | 5943 | |
301738ed RS |
5944 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
5945 | mod_len + base_len_byte); | |
d5db4077 KR |
5946 | bcopy (new_mods, SDATA (new_name), mod_len); |
5947 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
5948 | |
5949 | return Fintern (new_name, Qnil); | |
5950 | } | |
5951 | } | |
5952 | ||
5953 | ||
0a7f1fc0 JB |
5954 | static char *modifier_names[] = |
5955 | { | |
fbcd35bd | 5956 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 5957 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 5958 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 5959 | }; |
80645119 | 5960 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
5961 | |
5962 | static Lisp_Object modifier_symbols; | |
5963 | ||
5964 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
5965 | static Lisp_Object | |
5966 | lispy_modifier_list (modifiers) | |
5967 | int modifiers; | |
5968 | { | |
5969 | Lisp_Object modifier_list; | |
5970 | int i; | |
5971 | ||
5972 | modifier_list = Qnil; | |
80645119 | 5973 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 5974 | if (modifiers & (1<<i)) |
80645119 JB |
5975 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
5976 | modifier_list); | |
0a7f1fc0 JB |
5977 | |
5978 | return modifier_list; | |
5979 | } | |
5980 | ||
5981 | ||
5982 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
5983 | where UNMODIFIED is the unmodified form of SYMBOL, | |
5984 | MASK is the set of modifiers present in SYMBOL's name. | |
5985 | This is similar to parse_modifiers_uncached, but uses the cache in | |
5986 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
5987 | Qevent_symbol_elements property. */ | |
3d31316f | 5988 | |
1161d367 | 5989 | Lisp_Object |
0a7f1fc0 JB |
5990 | parse_modifiers (symbol) |
5991 | Lisp_Object symbol; | |
5992 | { | |
9b8eb840 | 5993 | Lisp_Object elements; |
0a7f1fc0 | 5994 | |
9b8eb840 | 5995 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
5996 | if (CONSP (elements)) |
5997 | return elements; | |
5998 | else | |
5999 | { | |
6000 | int end; | |
ec0faad2 | 6001 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6002 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6003 | Lisp_Object mask; |
6004 | ||
d5db4077 KR |
6005 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6006 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6007 | Qnil); |
6008 | ||
e22216b8 | 6009 | if (modifiers & ~INTMASK) |
734fef94 | 6010 | abort (); |
bb9e9bed | 6011 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6012 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6013 | ||
6014 | /* Cache the parsing results on SYMBOL. */ | |
6015 | Fput (symbol, Qevent_symbol_element_mask, | |
6016 | elements); | |
6017 | Fput (symbol, Qevent_symbol_elements, | |
6018 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6019 | ||
6020 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6021 | it would be nice to put that in unmodified's cache. | |
6022 | But we can't, since we're not sure that parse_modifiers is | |
6023 | canonical. */ | |
6024 | ||
6025 | return elements; | |
6026 | } | |
6027 | } | |
6028 | ||
6029 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
6030 | BASE must be unmodified. | |
6031 | ||
6032 | This is like apply_modifiers_uncached, but uses BASE's | |
6033 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6034 | Qevent_symbol_elements properties, since it has that info anyway. |
6035 | ||
6036 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6037 | the modified symbol. */ | |
0a7f1fc0 JB |
6038 | static Lisp_Object |
6039 | apply_modifiers (modifiers, base) | |
6040 | int modifiers; | |
6041 | Lisp_Object base; | |
6042 | { | |
7b4aedb9 | 6043 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6044 | |
80645119 | 6045 | /* Mask out upper bits. We don't know where this value's been. */ |
e22216b8 | 6046 | modifiers &= INTMASK; |
80645119 | 6047 | |
0a7f1fc0 | 6048 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6049 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6050 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6051 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6052 | |
6053 | if (CONSP (entry)) | |
7539e11f | 6054 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6055 | else |
6056 | { | |
df0f2ba1 | 6057 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6058 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6059 | SDATA (SYMBOL_NAME (base)), |
6060 | SCHARS (SYMBOL_NAME (base)), | |
6061 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6062 | |
6063 | /* Add the new symbol to the base's cache. */ | |
6064 | entry = Fcons (index, new_symbol); | |
6065 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6066 | ||
35fb885d SM |
6067 | /* We have the parsing info now for free, so we could add it to |
6068 | the caches: | |
6069 | XSETFASTINT (index, modifiers); | |
6070 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6071 | Fcons (base, Fcons (index, Qnil))); | |
6072 | Fput (new_symbol, Qevent_symbol_elements, | |
6073 | Fcons (base, lispy_modifier_list (modifiers))); | |
6074 | Sadly, this is only correct if `base' is indeed a base event, | |
6075 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6076 | } |
0a7f1fc0 | 6077 | |
df0f2ba1 | 6078 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6079 | |
6080 | You'd think we could just set this once and for all when we | |
6081 | intern the symbol above, but reorder_modifiers may call us when | |
6082 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6083 | because it has a Qmodifier_cache property it must have its |
6084 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6085 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6086 | { | |
9b8eb840 | 6087 | Lisp_Object kind; |
7b4aedb9 | 6088 | |
9b8eb840 | 6089 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6090 | if (! NILP (kind)) |
6091 | Fput (new_symbol, Qevent_kind, kind); | |
6092 | } | |
6093 | ||
6094 | return new_symbol; | |
0a7f1fc0 JB |
6095 | } |
6096 | ||
6097 | ||
6098 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6099 | return a symbol with the modifiers placed in the canonical order. | |
6100 | Canonical order is alphabetical, except for down and drag, which | |
6101 | always come last. The 'click' modifier is never written out. | |
6102 | ||
6103 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6104 | and M-C-foo end up being equivalent in the keymap. */ | |
6105 | ||
6106 | Lisp_Object | |
6107 | reorder_modifiers (symbol) | |
6108 | Lisp_Object symbol; | |
6109 | { | |
6110 | /* It's hopefully okay to write the code this way, since everything | |
6111 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6112 | Lisp_Object parsed; |
0a7f1fc0 | 6113 | |
9b8eb840 | 6114 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6115 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6116 | XCAR (parsed)); | |
0a7f1fc0 JB |
6117 | } |
6118 | ||
6119 | ||
284f4730 JB |
6120 | /* For handling events, we often want to produce a symbol whose name |
6121 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6122 | to some base, like the name of a function key or mouse button. | |
6123 | modify_event_symbol produces symbols of this sort. | |
6124 | ||
6125 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6126 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6127 | in the table. | |
6128 | ||
8e1e4240 GM |
6129 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6130 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6131 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6132 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6133 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6134 | |
284f4730 JB |
6135 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6136 | persist between calls to modify_event_symbol that it can use to | |
6137 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6138 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6139 | |
6140 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6141 | |
284f4730 JB |
6142 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6143 | whose prefixes should be applied to the symbol name. | |
6144 | ||
6145 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6146 | the returned symbol. |
88cb0656 JB |
6147 | |
6148 | The symbols we create are supposed to have an | |
eb8c3be9 | 6149 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6150 | in the symbol's name. */ |
6151 | ||
284f4730 | 6152 | static Lisp_Object |
8e1e4240 | 6153 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6154 | name_table, symbol_table, table_size) |
284f4730 JB |
6155 | int symbol_num; |
6156 | unsigned modifiers; | |
6157 | Lisp_Object symbol_kind; | |
8e1e4240 | 6158 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6159 | char **name_table; |
6160 | Lisp_Object *symbol_table; | |
2c834fb3 | 6161 | unsigned int table_size; |
284f4730 | 6162 | { |
80e4aa30 RS |
6163 | Lisp_Object value; |
6164 | Lisp_Object symbol_int; | |
6165 | ||
2c834fb3 KH |
6166 | /* Get rid of the "vendor-specific" bit here. */ |
6167 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6168 | |
6169 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6170 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6171 | return Qnil; |
284f4730 | 6172 | |
80e4aa30 RS |
6173 | if (CONSP (*symbol_table)) |
6174 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6175 | ||
0a7f1fc0 | 6176 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6177 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6178 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6179 | we've never used that symbol before. */ | |
80e4aa30 | 6180 | else |
88cb0656 | 6181 | { |
80e4aa30 RS |
6182 | if (! VECTORP (*symbol_table) |
6183 | || XVECTOR (*symbol_table)->size != table_size) | |
6184 | { | |
6185 | Lisp_Object size; | |
0a7f1fc0 | 6186 | |
bb9e9bed | 6187 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6188 | *symbol_table = Fmake_vector (size, Qnil); |
6189 | } | |
284f4730 | 6190 | |
80e4aa30 RS |
6191 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6192 | } | |
284f4730 | 6193 | |
0a7f1fc0 | 6194 | /* Have we already used this symbol before? */ |
80e4aa30 | 6195 | if (NILP (value)) |
284f4730 | 6196 | { |
0a7f1fc0 | 6197 | /* No; let's create it. */ |
8e1e4240 GM |
6198 | if (CONSP (name_alist_or_stem)) |
6199 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6200 | else if (STRINGP (name_alist_or_stem)) | |
6201 | { | |
d5db4077 | 6202 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6203 | char *buf = (char *) alloca (len + 50); |
ed3230db DL |
6204 | if (sizeof (int) == sizeof (EMACS_INT)) |
6205 | sprintf (buf, "%s-%d", SDATA (name_alist_or_stem), | |
6206 | XINT (symbol_int) + 1); | |
6207 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6208 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), | |
6209 | XINT (symbol_int) + 1); | |
8e1e4240 GM |
6210 | value = intern (buf); |
6211 | } | |
2ff6714d | 6212 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6213 | value = intern (name_table[symbol_num]); |
b64b4075 | 6214 | |
e98a93eb | 6215 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6216 | if (NILP (value)) |
6217 | { | |
6218 | char *name = x_get_keysym_name (symbol_num); | |
6219 | if (name) | |
6220 | value = intern (name); | |
6221 | } | |
6222 | #endif | |
6223 | ||
b64b4075 | 6224 | if (NILP (value)) |
d1f50460 RS |
6225 | { |
6226 | char buf[20]; | |
6227 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6228 | value = intern (buf); |
d1f50460 | 6229 | } |
0a7f1fc0 | 6230 | |
80e4aa30 | 6231 | if (CONSP (*symbol_table)) |
4205cb08 | 6232 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6233 | else |
6234 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6235 | ||
df0f2ba1 | 6236 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6237 | builds the Qevent_symbol_elements property, which the user |
6238 | cares about. */ | |
80e4aa30 RS |
6239 | apply_modifiers (modifiers & click_modifier, value); |
6240 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6241 | } |
88cb0656 | 6242 | |
0a7f1fc0 | 6243 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6244 | return apply_modifiers (modifiers, value); |
284f4730 | 6245 | } |
6da3dd3a RS |
6246 | \f |
6247 | /* Convert a list that represents an event type, | |
6248 | such as (ctrl meta backspace), into the usual representation of that | |
6249 | event type as a number or a symbol. */ | |
6250 | ||
a1706c30 | 6251 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6252 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6253 | EVENT-DESC should contain one base event type (a character or symbol) | |
6254 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6255 | drag, down, double or triple). The base must be last. | |
6256 | The return value is an event type (a character or symbol) which | |
6257 | has the same base event type and all the specified modifiers. */) | |
6258 | (event_desc) | |
e57d8fd8 | 6259 | Lisp_Object event_desc; |
6da3dd3a RS |
6260 | { |
6261 | Lisp_Object base; | |
6262 | int modifiers = 0; | |
6263 | Lisp_Object rest; | |
6264 | ||
6265 | base = Qnil; | |
e57d8fd8 | 6266 | rest = event_desc; |
6da3dd3a RS |
6267 | while (CONSP (rest)) |
6268 | { | |
6269 | Lisp_Object elt; | |
6270 | int this = 0; | |
6271 | ||
7539e11f KR |
6272 | elt = XCAR (rest); |
6273 | rest = XCDR (rest); | |
6da3dd3a | 6274 | |
3d31316f | 6275 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6276 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6277 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6278 | |
6279 | if (this != 0) | |
6280 | modifiers |= this; | |
6281 | else if (!NILP (base)) | |
6282 | error ("Two bases given in one event"); | |
6283 | else | |
6284 | base = elt; | |
6285 | ||
6da3dd3a RS |
6286 | } |
6287 | ||
3d31316f | 6288 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6289 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6290 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6291 | |
6da3dd3a RS |
6292 | if (INTEGERP (base)) |
6293 | { | |
3d31316f RS |
6294 | /* Turn (shift a) into A. */ |
6295 | if ((modifiers & shift_modifier) != 0 | |
6296 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6297 | { | |
6298 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6299 | modifiers &= ~shift_modifier; | |
6300 | } | |
6301 | ||
6302 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6303 | if (modifiers & ctrl_modifier) |
3d31316f | 6304 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6305 | | make_ctrl_char (XINT (base))); |
6306 | else | |
6307 | return make_number (modifiers | XINT (base)); | |
6308 | } | |
6309 | else if (SYMBOLP (base)) | |
6310 | return apply_modifiers (modifiers, base); | |
6311 | else | |
8c907a56 GM |
6312 | { |
6313 | error ("Invalid base event"); | |
6314 | return Qnil; | |
6315 | } | |
6da3dd3a RS |
6316 | } |
6317 | ||
3d31316f RS |
6318 | /* Try to recognize SYMBOL as a modifier name. |
6319 | Return the modifier flag bit, or 0 if not recognized. */ | |
6320 | ||
6321 | static int | |
6322 | parse_solitary_modifier (symbol) | |
6323 | Lisp_Object symbol; | |
6324 | { | |
1b049b51 | 6325 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6326 | |
1b049b51 | 6327 | switch (SREF (name, 0)) |
3d31316f RS |
6328 | { |
6329 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6330 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6331 | return BIT; |
6332 | ||
6333 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6334 | if (LEN == SBYTES (name) \ |
6335 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6336 | return BIT; |
6337 | ||
6338 | case 'A': | |
6339 | SINGLE_LETTER_MOD (alt_modifier); | |
6340 | break; | |
6341 | ||
6342 | case 'a': | |
6343 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6344 | break; | |
6345 | ||
6346 | case 'C': | |
6347 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6348 | break; | |
6349 | ||
6350 | case 'c': | |
6351 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6352 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6353 | break; | |
6354 | ||
6355 | case 'H': | |
6356 | SINGLE_LETTER_MOD (hyper_modifier); | |
6357 | break; | |
6358 | ||
6359 | case 'h': | |
6360 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6361 | break; | |
6362 | ||
6363 | case 'M': | |
6364 | SINGLE_LETTER_MOD (meta_modifier); | |
6365 | break; | |
6366 | ||
6367 | case 'm': | |
6368 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6369 | break; | |
6370 | ||
6371 | case 'S': | |
6372 | SINGLE_LETTER_MOD (shift_modifier); | |
6373 | break; | |
6374 | ||
6375 | case 's': | |
6376 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6377 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6378 | SINGLE_LETTER_MOD (super_modifier); | |
6379 | break; | |
6380 | ||
6381 | case 'd': | |
6382 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6383 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6384 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6385 | break; | |
6386 | ||
6387 | case 't': | |
6388 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6389 | break; | |
6390 | ||
6391 | #undef SINGLE_LETTER_MOD | |
6392 | #undef MULTI_LETTER_MOD | |
6393 | } | |
6394 | ||
6395 | return 0; | |
6396 | } | |
6397 | ||
6da3dd3a RS |
6398 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6399 | Such a list is not valid as an event, | |
6400 | but it can be a Lucid-style event type list. */ | |
6401 | ||
6402 | int | |
6403 | lucid_event_type_list_p (object) | |
6404 | Lisp_Object object; | |
6405 | { | |
6406 | Lisp_Object tail; | |
6407 | ||
6408 | if (! CONSP (object)) | |
6409 | return 0; | |
902ae620 GM |
6410 | |
6411 | if (EQ (XCAR (object), Qhelp_echo) | |
6412 | || EQ (XCAR (object), Qvertical_line) | |
6413 | || EQ (XCAR (object), Qmode_line) | |
6414 | || EQ (XCAR (object), Qheader_line)) | |
6415 | return 0; | |
6da3dd3a | 6416 | |
7539e11f | 6417 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6418 | { |
6419 | Lisp_Object elt; | |
7539e11f | 6420 | elt = XCAR (tail); |
6da3dd3a RS |
6421 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6422 | return 0; | |
6423 | } | |
6424 | ||
6425 | return NILP (tail); | |
6426 | } | |
284f4730 | 6427 | \f |
284f4730 JB |
6428 | /* Store into *addr a value nonzero if terminal input chars are available. |
6429 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6430 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6431 | (In fact, this may actually read some input.) |
6432 | ||
20057d52 JD |
6433 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. |
6434 | If FILTER_EVENTS is nonzero, ignore internal events (FOCUS_IN_EVENT). */ | |
284f4730 JB |
6435 | |
6436 | static void | |
20057d52 | 6437 | get_filtered_input_pending (addr, do_timers_now, filter_events) |
284f4730 | 6438 | int *addr; |
d9d4c147 | 6439 | int do_timers_now; |
20057d52 | 6440 | int filter_events; |
284f4730 JB |
6441 | { |
6442 | /* First of all, have we already counted some input? */ | |
20057d52 JD |
6443 | *addr = (!NILP (Vquit_flag) |
6444 | || readable_filtered_events (do_timers_now, filter_events)); | |
284f4730 JB |
6445 | |
6446 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6447 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6448 | return; | |
6449 | ||
6450 | /* Try to read some input and see how much we get. */ | |
6451 | gobble_input (0); | |
20057d52 JD |
6452 | *addr = (!NILP (Vquit_flag) |
6453 | || readable_filtered_events (do_timers_now, filter_events)); | |
6454 | } | |
6455 | ||
6456 | /* Store into *addr a value nonzero if terminal input chars are available. | |
6457 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6458 | but works even if FIONREAD does not exist. | |
6459 | (In fact, this may actually read some input.) | |
6460 | ||
6461 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
6462 | ||
6463 | static void | |
6464 | get_input_pending (addr, do_timers_now) | |
6465 | int *addr; | |
6466 | int do_timers_now; | |
6467 | { | |
6468 | get_filtered_input_pending (addr, do_timers_now, 0); | |
284f4730 JB |
6469 | } |
6470 | ||
81931ba1 | 6471 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6472 | |
07a59269 | 6473 | void |
284f4730 JB |
6474 | gobble_input (expected) |
6475 | int expected; | |
6476 | { | |
6477 | #ifndef VMS | |
6478 | #ifdef SIGIO | |
6479 | if (interrupt_input) | |
6480 | { | |
32676c08 | 6481 | SIGMASKTYPE mask; |
4f8aaa74 | 6482 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6483 | read_avail_input (expected); |
e065a56e | 6484 | sigsetmask (mask); |
284f4730 JB |
6485 | } |
6486 | else | |
81931ba1 RS |
6487 | #ifdef POLL_FOR_INPUT |
6488 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6489 | { | |
6490 | SIGMASKTYPE mask; | |
4f8aaa74 | 6491 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6492 | read_avail_input (expected); |
6493 | sigsetmask (mask); | |
6494 | } | |
6495 | else | |
87485d6f | 6496 | #endif |
284f4730 JB |
6497 | #endif |
6498 | read_avail_input (expected); | |
6499 | #endif | |
6500 | } | |
a8015ab5 | 6501 | |
3b8f9651 | 6502 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6503 | so that read_key_sequence will notice the new current buffer. */ |
6504 | ||
07a59269 | 6505 | void |
a8015ab5 KH |
6506 | record_asynch_buffer_change () |
6507 | { | |
6508 | struct input_event event; | |
a30f0615 | 6509 | Lisp_Object tem; |
1269a761 | 6510 | EVENT_INIT (event); |
a30f0615 | 6511 | |
3b8f9651 | 6512 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6513 | event.frame_or_window = Qnil; |
da8f7368 | 6514 | event.arg = Qnil; |
241ceaf7 | 6515 | |
f65e6f7d | 6516 | #ifdef subprocesses |
a30f0615 RS |
6517 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6518 | The purpose of the event is to make read_key_sequence look up the | |
6519 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6520 | and the event could cause trouble by messing up (input-pending-p). */ | |
6521 | tem = Fwaiting_for_user_input_p (); | |
6522 | if (NILP (tem)) | |
6523 | return; | |
f65e6f7d RS |
6524 | #else |
6525 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6526 | return; | |
6527 | #endif | |
a30f0615 | 6528 | |
241ceaf7 RS |
6529 | /* Make sure no interrupt happens while storing the event. */ |
6530 | #ifdef SIGIO | |
6531 | if (interrupt_input) | |
6532 | { | |
6533 | SIGMASKTYPE mask; | |
4f8aaa74 | 6534 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6535 | kbd_buffer_store_event (&event); |
6536 | sigsetmask (mask); | |
6537 | } | |
6538 | else | |
6539 | #endif | |
6540 | { | |
6541 | stop_polling (); | |
6542 | kbd_buffer_store_event (&event); | |
6543 | start_polling (); | |
6544 | } | |
a8015ab5 | 6545 | } |
284f4730 JB |
6546 | \f |
6547 | #ifndef VMS | |
6548 | ||
6549 | /* Read any terminal input already buffered up by the system | |
6550 | into the kbd_buffer, but do not wait. | |
6551 | ||
6552 | EXPECTED should be nonzero if the caller knows there is some input. | |
6553 | ||
6554 | Except on VMS, all input is read by this function. | |
6555 | If interrupt_input is nonzero, this function MUST be called | |
6556 | only when SIGIO is blocked. | |
6557 | ||
6558 | Returns the number of keyboard chars read, or -1 meaning | |
6559 | this is a bad time to try to read input. */ | |
6560 | ||
6561 | static int | |
6562 | read_avail_input (expected) | |
6563 | int expected; | |
6564 | { | |
6565 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6566 | register int i; | |
6567 | int nread; | |
6568 | ||
1269a761 SM |
6569 | for (i = 0; i < KBD_BUFFER_SIZE; i++) |
6570 | EVENT_INIT (buf[i]); | |
6571 | ||
284f4730 JB |
6572 | if (read_socket_hook) |
6573 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6574 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6575 | else |
6576 | { | |
17270835 RS |
6577 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6578 | the kbd_buffer can really hold. That may prevent loss | |
6579 | of characters on some systems when input is stuffed at us. */ | |
6580 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6581 | int n_to_read; |
284f4730 | 6582 | |
58788063 | 6583 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6584 | #ifdef WINDOWSNT |
6585 | return 0; | |
6586 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6587 | #ifdef MSDOS |
58788063 RS |
6588 | n_to_read = dos_keysns (); |
6589 | if (n_to_read == 0) | |
6590 | return 0; | |
c3a2738c | 6591 | #else /* not MSDOS */ |
284f4730 JB |
6592 | #ifdef FIONREAD |
6593 | /* Find out how much input is available. */ | |
437f6112 | 6594 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6595 | /* Formerly simply reported no input, but that sometimes led to |
6596 | a failure of Emacs to terminate. | |
6597 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6598 | /* ??? Is it really right to send the signal just to this process |
6599 | rather than to the whole process group? | |
6600 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
f1871a7d RS |
6601 | { |
6602 | if (! noninteractive) | |
6603 | kill (getpid (), SIGHUP); | |
6604 | else | |
6605 | n_to_read = 0; | |
6606 | } | |
58788063 | 6607 | if (n_to_read == 0) |
284f4730 | 6608 | return 0; |
58788063 RS |
6609 | if (n_to_read > sizeof cbuf) |
6610 | n_to_read = sizeof cbuf; | |
284f4730 | 6611 | #else /* no FIONREAD */ |
c60ee5e7 | 6612 | #if defined (USG) || defined (DGUX) || defined(CYGWIN) |
284f4730 | 6613 | /* Read some input if available, but don't wait. */ |
58788063 | 6614 | n_to_read = sizeof cbuf; |
437f6112 | 6615 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6616 | #else |
6617 | you lose; | |
6618 | #endif | |
6619 | #endif | |
80e4aa30 | 6620 | #endif /* not MSDOS */ |
bc536d84 | 6621 | #endif /* not WINDOWSNT */ |
284f4730 | 6622 | |
58788063 RS |
6623 | /* Now read; for one reason or another, this will not block. |
6624 | NREAD is set to the number of chars read. */ | |
9134775b | 6625 | do |
284f4730 | 6626 | { |
80e4aa30 | 6627 | #ifdef MSDOS |
0c04a67e | 6628 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6629 | nread = 1; |
6630 | #else | |
68c45bf0 | 6631 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6632 | #endif |
49854566 RS |
6633 | /* POSIX infers that processes which are not in the session leader's |
6634 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6635 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6636 | when the control tty is taken away. |
6637 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6638 | if (nread == -1 && errno == EIO) | |
6639 | kill (0, SIGHUP); | |
762f2b92 | 6640 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6641 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6642 | This looks incorrect, but it isn't, because _BSD causes | |
6643 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6644 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6645 | if (nread == 0) |
80e4aa30 | 6646 | kill (0, SIGHUP); |
284f4730 | 6647 | #endif |
9134775b | 6648 | } |
791587ee KH |
6649 | while ( |
6650 | /* We used to retry the read if it was interrupted. | |
6651 | But this does the wrong thing when O_NDELAY causes | |
6652 | an EAGAIN error. Does anybody know of a situation | |
6653 | where a retry is actually needed? */ | |
6654 | #if 0 | |
6655 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6656 | #ifdef EFAULT |
9134775b | 6657 | || errno == EFAULT |
80e4aa30 | 6658 | #endif |
284f4730 | 6659 | #ifdef EBADSLT |
9134775b | 6660 | || errno == EBADSLT |
284f4730 | 6661 | #endif |
791587ee KH |
6662 | ) |
6663 | #else | |
6664 | 0 | |
6665 | #endif | |
6666 | ); | |
284f4730 JB |
6667 | |
6668 | #ifndef FIONREAD | |
c60ee5e7 | 6669 | #if defined (USG) || defined (DGUX) || defined (CYGWIN) |
437f6112 | 6670 | fcntl (input_fd, F_SETFL, 0); |
c60ee5e7 | 6671 | #endif /* USG or DGUX or CYGWIN */ |
284f4730 JB |
6672 | #endif /* no FIONREAD */ |
6673 | for (i = 0; i < nread; i++) | |
6674 | { | |
3b8f9651 | 6675 | buf[i].kind = ASCII_KEYSTROKE_EVENT; |
86e5706b | 6676 | buf[i].modifiers = 0; |
b04904fb | 6677 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6678 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6679 | if (meta_key != 2) |
6680 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6681 | |
6682 | buf[i].code = cbuf[i]; | |
788f89eb | 6683 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6684 | buf[i].arg = Qnil; |
284f4730 JB |
6685 | } |
6686 | } | |
6687 | ||
6688 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6689 | for (i = 0; i < nread; i++) | |
6690 | { | |
6691 | kbd_buffer_store_event (&buf[i]); | |
6692 | /* Don't look at input that follows a C-g too closely. | |
6693 | This reduces lossage due to autorepeat on C-g. */ | |
3b8f9651 | 6694 | if (buf[i].kind == ASCII_KEYSTROKE_EVENT |
9343ab07 | 6695 | && buf[i].code == quit_char) |
284f4730 JB |
6696 | break; |
6697 | } | |
6698 | ||
6699 | return nread; | |
6700 | } | |
6701 | #endif /* not VMS */ | |
6702 | \f | |
6703 | #ifdef SIGIO /* for entire page */ | |
6704 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6705 | ||
4216b545 | 6706 | static SIGTYPE |
284f4730 JB |
6707 | input_available_signal (signo) |
6708 | int signo; | |
6709 | { | |
6710 | /* Must preserve main program's value of errno. */ | |
6711 | int old_errno = errno; | |
6712 | #ifdef BSD4_1 | |
6713 | extern int select_alarmed; | |
6714 | #endif | |
6715 | ||
5970a8cb | 6716 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6717 | /* USG systems forget handlers when they are used; |
6718 | must reestablish each time */ | |
6719 | signal (signo, input_available_signal); | |
6720 | #endif /* USG */ | |
6721 | ||
6722 | #ifdef BSD4_1 | |
6723 | sigisheld (SIGIO); | |
6724 | #endif | |
6725 | ||
ffd56f97 JB |
6726 | if (input_available_clear_time) |
6727 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6728 | |
6729 | while (1) | |
6730 | { | |
6731 | int nread; | |
6732 | nread = read_avail_input (1); | |
6733 | /* -1 means it's not ok to read the input now. | |
6734 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6735 | 0 means there was no keyboard input available. */ | |
6736 | if (nread <= 0) | |
6737 | break; | |
6738 | ||
6739 | #ifdef BSD4_1 | |
6740 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6741 | #endif | |
6742 | } | |
6743 | ||
6744 | #ifdef BSD4_1 | |
6745 | sigfree (); | |
6746 | #endif | |
6747 | errno = old_errno; | |
6748 | } | |
6749 | #endif /* SIGIO */ | |
ad163903 JB |
6750 | |
6751 | /* Send ourselves a SIGIO. | |
6752 | ||
6753 | This function exists so that the UNBLOCK_INPUT macro in | |
6754 | blockinput.h can have some way to take care of input we put off | |
6755 | dealing with, without assuming that every file which uses | |
6756 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6757 | void | |
6758 | reinvoke_input_signal () | |
6759 | { | |
df0f2ba1 | 6760 | #ifdef SIGIO |
87dd9b9b | 6761 | kill (getpid (), SIGIO); |
ad163903 JB |
6762 | #endif |
6763 | } | |
6764 | ||
6765 | ||
284f4730 | 6766 | \f |
318ab85c SM |
6767 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
6768 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
6769 | |
6770 | /* These variables hold the vector under construction within | |
6771 | menu_bar_items and its subroutines, and the current index | |
6772 | for storing into that vector. */ | |
6773 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6774 | static int menu_bar_items_index; |
5ec75a55 | 6775 | |
b7c49376 RS |
6776 | /* Return a vector of menu items for a menu bar, appropriate |
6777 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6778 | KEY STRING MAPLIST. |
b7c49376 RS |
6779 | |
6780 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6781 | |
6782 | Lisp_Object | |
b7c49376 RS |
6783 | menu_bar_items (old) |
6784 | Lisp_Object old; | |
5ec75a55 RS |
6785 | { |
6786 | /* The number of keymaps we're scanning right now, and the number of | |
6787 | keymaps we have allocated space for. */ | |
6788 | int nmaps; | |
6789 | ||
6790 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6791 | in the current keymaps, or nil where it is not a prefix. */ | |
6792 | Lisp_Object *maps; | |
6793 | ||
aebfea68 | 6794 | Lisp_Object def, tail; |
5ec75a55 RS |
6795 | |
6796 | Lisp_Object result; | |
6797 | ||
6798 | int mapno; | |
47d319aa | 6799 | Lisp_Object oquit; |
5ec75a55 | 6800 | |
b7c49376 RS |
6801 | int i; |
6802 | ||
6803 | struct gcpro gcpro1; | |
6804 | ||
db60d856 JB |
6805 | /* In order to build the menus, we need to call the keymap |
6806 | accessors. They all call QUIT. But this function is called | |
6807 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6808 | quitting while building the menus. |
6809 | We do this instead of specbind because (1) errors will clear it anyway | |
6810 | and (2) this avoids risk of specpdl overflow. */ | |
6811 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6812 | Vinhibit_quit = Qt; |
db60d856 | 6813 | |
b7c49376 RS |
6814 | if (!NILP (old)) |
6815 | menu_bar_items_vector = old; | |
6816 | else | |
6817 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6818 | menu_bar_items_index = 0; | |
6819 | ||
6820 | GCPRO1 (menu_bar_items_vector); | |
6821 | ||
5ec75a55 RS |
6822 | /* Build our list of keymaps. |
6823 | If we recognize a function key and replace its escape sequence in | |
6824 | keybuf with its symbol, or if the sequence starts with a mouse | |
6825 | click and we need to switch buffers, we jump back here to rebuild | |
6826 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6827 | { |
5ec75a55 RS |
6828 | Lisp_Object *tmaps; |
6829 | ||
217258d5 | 6830 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6831 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6832 | { |
217258d5 KH |
6833 | /* Yes, use them (if non-nil) as well as the global map. */ |
6834 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6835 | nmaps = 0; | |
6836 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6837 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6838 | if (!NILP (Voverriding_local_map)) | |
6839 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6840 | } |
6841 | else | |
6842 | { | |
fd646341 KS |
6843 | /* No, so use major and minor mode keymaps and keymap property. |
6844 | Note that menu-bar bindings in the local-map and keymap | |
6845 | properties may not work reliable, as they are only | |
6846 | recognized when the menu-bar (or mode-line) is updated, | |
6847 | which does not normally happen after every command. */ | |
6848 | Lisp_Object tem; | |
6849 | int nminor; | |
6850 | nminor = current_minor_maps (NULL, &tmaps); | |
6851 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6852 | nmaps = 0; | |
6853 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6854 | maps[nmaps++] = tem; | |
6855 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6856 | nmaps += nminor; | |
6857 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6858 | } |
217258d5 | 6859 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6860 | } |
6861 | ||
6862 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6863 | ||
6864 | result = Qnil; | |
6865 | ||
e58aa385 | 6866 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6867 | if (!NILP (maps[mapno])) |
6868 | { | |
341a09cf SM |
6869 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6870 | 0, 1); | |
02067692 | 6871 | if (CONSP (def)) |
4216b545 SM |
6872 | { |
6873 | menu_bar_one_keymap_changed_items = Qnil; | |
6874 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
6875 | } | |
25126faa | 6876 | } |
5ec75a55 | 6877 | |
b7c49376 RS |
6878 | /* Move to the end those items that should be at the end. */ |
6879 | ||
7539e11f | 6880 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6881 | { |
b7c49376 RS |
6882 | int i; |
6883 | int end = menu_bar_items_index; | |
6884 | ||
35b3402f | 6885 | for (i = 0; i < end; i += 4) |
7539e11f | 6886 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 6887 | { |
35b3402f | 6888 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
6889 | /* Move the item at index I to the end, |
6890 | shifting all the others forward. */ | |
6891 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
6892 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
6893 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
6894 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
6895 | if (end > i + 4) | |
6896 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 6897 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6898 | (end - i - 4) * sizeof (Lisp_Object)); |
6899 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
6900 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
6901 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
6902 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 6903 | break; |
b7c49376 RS |
6904 | } |
6905 | } | |
9f9c0e27 | 6906 | |
0c9071cd | 6907 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 6908 | i = menu_bar_items_index; |
35b3402f | 6909 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6910 | { |
6911 | Lisp_Object tem; | |
b7c49376 RS |
6912 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6913 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6914 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6915 | menu_bar_items_vector = tem; | |
9f9c0e27 | 6916 | } |
b7c49376 RS |
6917 | /* Add this item. */ |
6918 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6919 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
6920 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 6921 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 6922 | menu_bar_items_index = i; |
a73c5e29 | 6923 | |
47d319aa | 6924 | Vinhibit_quit = oquit; |
b7c49376 RS |
6925 | UNGCPRO; |
6926 | return menu_bar_items_vector; | |
5ec75a55 RS |
6927 | } |
6928 | \f | |
f5e09c8b RS |
6929 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
6930 | If there's already an item for KEY, add this DEF to it. */ | |
6931 | ||
e8886a1d RS |
6932 | Lisp_Object item_properties; |
6933 | ||
b7c49376 | 6934 | static void |
4216b545 SM |
6935 | menu_bar_item (key, item, dummy1, dummy2) |
6936 | Lisp_Object key, item, dummy1; | |
6937 | void *dummy2; | |
5ec75a55 | 6938 | { |
e8886a1d | 6939 | struct gcpro gcpro1; |
b7c49376 | 6940 | int i; |
759860a6 | 6941 | Lisp_Object tem; |
5ec75a55 | 6942 | |
e8886a1d | 6943 | if (EQ (item, Qundefined)) |
e58aa385 | 6944 | { |
f5e09c8b | 6945 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 6946 | discard any previously made menu bar item. */ |
b7c49376 | 6947 | |
35b3402f | 6948 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6949 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6950 | { | |
35b3402f RS |
6951 | if (menu_bar_items_index > i + 4) |
6952 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 6953 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
6954 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
6955 | menu_bar_items_index -= 4; | |
b7c49376 | 6956 | } |
e58aa385 RS |
6957 | } |
6958 | ||
759860a6 RS |
6959 | /* If this keymap has already contributed to this KEY, |
6960 | don't contribute to it a second time. */ | |
6961 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 6962 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
6963 | return; |
6964 | ||
6965 | menu_bar_one_keymap_changed_items | |
6966 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
6967 | ||
9cd2ced7 SM |
6968 | /* We add to menu_bar_one_keymap_changed_items before doing the |
6969 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
6970 | it still correctly hides any further menu item. */ | |
6971 | GCPRO1 (key); | |
6972 | i = parse_menu_item (item, 0, 1); | |
6973 | UNGCPRO; | |
6974 | if (!i) | |
6975 | return; | |
6976 | ||
e8886a1d RS |
6977 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6978 | ||
f5e09c8b | 6979 | /* Find any existing item for this KEY. */ |
35b3402f | 6980 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
6981 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
6982 | break; | |
6983 | ||
f5e09c8b | 6984 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
6985 | if (i == menu_bar_items_index) |
6986 | { | |
6987 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 6988 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
6989 | { |
6990 | Lisp_Object tem; | |
b7c49376 RS |
6991 | tem = Fmake_vector (make_number (2 * i), Qnil); |
6992 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
6993 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
6994 | menu_bar_items_vector = tem; | |
6995 | } | |
e8886a1d | 6996 | |
b7c49376 RS |
6997 | /* Add this item. */ |
6998 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
6999 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7000 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7001 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7002 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7003 | menu_bar_items_index = i; |
7004 | } | |
e8886a1d | 7005 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7006 | else |
7007 | { | |
7008 | Lisp_Object old; | |
7009 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7010 | /* If the new and the old items are not both keymaps, |
7011 | the lookup will only find `item'. */ | |
7012 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7013 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7014 | } |
5ec75a55 RS |
7015 | } |
7016 | \f | |
e8886a1d RS |
7017 | /* This is used as the handler when calling menu_item_eval_property. */ |
7018 | static Lisp_Object | |
7019 | menu_item_eval_property_1 (arg) | |
7020 | Lisp_Object arg; | |
7021 | { | |
7022 | /* If we got a quit from within the menu computation, | |
7023 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7024 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7025 | Fsignal (Qquit, Qnil); |
7026 | ||
7027 | return Qnil; | |
7028 | } | |
7029 | ||
c60ee5e7 | 7030 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7031 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7032 | Lisp_Object |
e8886a1d RS |
7033 | menu_item_eval_property (sexpr) |
7034 | Lisp_Object sexpr; | |
7035 | { | |
aed13378 | 7036 | int count = SPECPDL_INDEX (); |
e8886a1d | 7037 | Lisp_Object val; |
44e553a3 | 7038 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7039 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7040 | menu_item_eval_property_1); | |
44e553a3 | 7041 | return unbind_to (count, val); |
e8886a1d RS |
7042 | } |
7043 | ||
7044 | /* This function parses a menu item and leaves the result in the | |
7045 | vector item_properties. | |
7046 | ITEM is a key binding, a possible menu item. | |
7047 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7048 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7049 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7050 | top level. |
fd3613d7 | 7051 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7052 | parse_menu_item returns true if the item is a menu item and false |
7053 | otherwise. */ | |
7054 | ||
7055 | int | |
7056 | parse_menu_item (item, notreal, inmenubar) | |
7057 | Lisp_Object item; | |
7058 | int notreal, inmenubar; | |
7059 | { | |
adc1d5c8 | 7060 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7061 | Lisp_Object cachelist; |
7062 | Lisp_Object filter; | |
7063 | Lisp_Object keyhint; | |
e8886a1d | 7064 | int i; |
74c1de23 RS |
7065 | int newcache = 0; |
7066 | ||
07ba902e RS |
7067 | cachelist = Qnil; |
7068 | filter = Qnil; | |
7069 | keyhint = Qnil; | |
7070 | ||
e8886a1d RS |
7071 | if (!CONSP (item)) |
7072 | return 0; | |
7073 | ||
e8886a1d RS |
7074 | /* Create item_properties vector if necessary. */ |
7075 | if (NILP (item_properties)) | |
7076 | item_properties | |
7077 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7078 | ||
7079 | /* Initialize optional entries. */ | |
7080 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
7081 | AREF (item_properties, i) = Qnil; |
7082 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
c60ee5e7 | 7083 | |
e8886a1d | 7084 | /* Save the item here to protect it from GC. */ |
3626fb1a | 7085 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 7086 | |
7539e11f | 7087 | item_string = XCAR (item); |
e8886a1d RS |
7088 | |
7089 | start = item; | |
7539e11f | 7090 | item = XCDR (item); |
e8886a1d RS |
7091 | if (STRINGP (item_string)) |
7092 | { | |
7093 | /* Old format menu item. */ | |
3626fb1a | 7094 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
7095 | |
7096 | /* Maybe help string. */ | |
7539e11f | 7097 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7098 | { |
3626fb1a | 7099 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7100 | start = item; |
7539e11f | 7101 | item = XCDR (item); |
e8886a1d | 7102 | } |
c60ee5e7 | 7103 | |
31f84d03 | 7104 | /* Maybe key binding cache. */ |
7539e11f KR |
7105 | if (CONSP (item) && CONSP (XCAR (item)) |
7106 | && (NILP (XCAR (XCAR (item))) | |
7107 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7108 | { |
7539e11f KR |
7109 | cachelist = XCAR (item); |
7110 | item = XCDR (item); | |
e8886a1d | 7111 | } |
c60ee5e7 | 7112 | |
e8886a1d | 7113 | /* This is the real definition--the function to run. */ |
3626fb1a | 7114 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
7115 | |
7116 | /* Get enable property, if any. */ | |
7117 | if (SYMBOLP (item)) | |
7118 | { | |
7119 | tem = Fget (item, Qmenu_enable); | |
7120 | if (!NILP (tem)) | |
3626fb1a | 7121 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7122 | } |
7123 | } | |
7124 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7125 | { | |
7126 | /* New format menu item. */ | |
3626fb1a | 7127 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 7128 | start = XCDR (item); |
e8886a1d RS |
7129 | if (CONSP (start)) |
7130 | { | |
7131 | /* We have a real binding. */ | |
3626fb1a | 7132 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 7133 | |
7539e11f | 7134 | item = XCDR (start); |
e8886a1d | 7135 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7136 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7137 | { |
7539e11f KR |
7138 | cachelist = XCAR (item); |
7139 | item = XCDR (item); | |
e8886a1d RS |
7140 | } |
7141 | ||
7142 | /* Parse properties. */ | |
7539e11f | 7143 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7144 | { |
7539e11f KR |
7145 | tem = XCAR (item); |
7146 | item = XCDR (item); | |
e8886a1d RS |
7147 | |
7148 | if (EQ (tem, QCenable)) | |
3626fb1a | 7149 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
7150 | else if (EQ (tem, QCvisible) && !notreal) |
7151 | { | |
7152 | /* If got a visible property and that evaluates to nil | |
7153 | then ignore this item. */ | |
7539e11f | 7154 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7155 | if (NILP (tem)) |
adc1d5c8 | 7156 | return 0; |
e8886a1d RS |
7157 | } |
7158 | else if (EQ (tem, QChelp)) | |
3626fb1a | 7159 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7160 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7161 | filter = item; |
7162 | else if (EQ (tem, QCkey_sequence)) | |
7163 | { | |
7539e11f | 7164 | tem = XCAR (item); |
74c1de23 RS |
7165 | if (NILP (cachelist) |
7166 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7167 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7168 | keyhint = item; | |
7169 | } | |
7170 | else if (EQ (tem, QCkeys)) | |
7171 | { | |
7539e11f | 7172 | tem = XCAR (item); |
03cee6ae | 7173 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 7174 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 7175 | } |
7539e11f | 7176 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7177 | { |
74c1de23 | 7178 | Lisp_Object type; |
7539e11f KR |
7179 | tem = XCAR (item); |
7180 | type = XCAR (tem); | |
e8886a1d RS |
7181 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7182 | { | |
3626fb1a | 7183 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 7184 | = XCDR (tem); |
3626fb1a | 7185 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
7186 | = type; |
7187 | } | |
7188 | } | |
7539e11f | 7189 | item = XCDR (item); |
e8886a1d RS |
7190 | } |
7191 | } | |
7192 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7193 | return 0; |
e8886a1d RS |
7194 | } |
7195 | else | |
adc1d5c8 | 7196 | return 0; /* not a menu item */ |
e8886a1d RS |
7197 | |
7198 | /* If item string is not a string, evaluate it to get string. | |
7199 | If we don't get a string, skip this item. */ | |
3626fb1a | 7200 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7201 | if (!(STRINGP (item_string) || notreal)) |
7202 | { | |
7203 | item_string = menu_item_eval_property (item_string); | |
7204 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7205 | return 0; |
3626fb1a | 7206 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d | 7207 | } |
c60ee5e7 | 7208 | |
e8886a1d | 7209 | /* If got a filter apply it on definition. */ |
3626fb1a | 7210 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7211 | if (!NILP (filter)) |
7212 | { | |
7539e11f | 7213 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7214 | list2 (Qquote, def))); |
7215 | ||
3626fb1a | 7216 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
7217 | } |
7218 | ||
e8886a1d | 7219 | /* Enable or disable selection of item. */ |
3626fb1a | 7220 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7221 | if (!EQ (tem, Qt)) |
7222 | { | |
7223 | if (notreal) | |
7224 | tem = Qt; | |
7225 | else | |
7226 | tem = menu_item_eval_property (tem); | |
7227 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7228 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7229 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7230 | } |
7231 | ||
7189cad8 SM |
7232 | /* If we got no definition, this item is just unselectable text which |
7233 | is OK in a submenu but not in the menubar. */ | |
7234 | if (NILP (def)) | |
7235 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7236 | |
e8886a1d | 7237 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7238 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7239 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7240 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7241 | if (CONSP (tem)) |
e8886a1d | 7242 | { |
3626fb1a GM |
7243 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7244 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7245 | return 1; |
7246 | } | |
c60ee5e7 | 7247 | |
9ac425d1 RS |
7248 | /* At the top level in the menu bar, do likewise for commands also. |
7249 | The menu bar does not display equivalent key bindings anyway. | |
7250 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7251 | if (inmenubar > 0) | |
7252 | return 1; | |
e8886a1d RS |
7253 | |
7254 | /* This is a command. See if there is an equivalent key binding. */ | |
7255 | if (NILP (cachelist)) | |
7256 | { | |
74c1de23 | 7257 | /* We have to create a cachelist. */ |
e8886a1d | 7258 | CHECK_IMPURE (start); |
f3fbd155 | 7259 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7260 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7261 | newcache = 1; |
3626fb1a | 7262 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7263 | if (!NILP (keyhint)) |
7264 | { | |
f3fbd155 | 7265 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7266 | newcache = 0; |
7267 | } | |
7268 | else if (STRINGP (tem)) | |
7269 | { | |
f3fbd155 KR |
7270 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7271 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7272 | } |
7273 | } | |
c60ee5e7 | 7274 | |
7539e11f | 7275 | tem = XCAR (cachelist); |
74c1de23 RS |
7276 | if (!EQ (tem, Qt)) |
7277 | { | |
7278 | int chkcache = 0; | |
7279 | Lisp_Object prefix; | |
7280 | ||
7281 | if (!NILP (tem)) | |
8b9940e6 | 7282 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7283 | |
3626fb1a | 7284 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7285 | if (CONSP (prefix)) |
7286 | { | |
7539e11f KR |
7287 | def = XCAR (prefix); |
7288 | prefix = XCDR (prefix); | |
74c1de23 | 7289 | } |
e8886a1d | 7290 | else |
3626fb1a | 7291 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7292 | |
3626fb1a GM |
7293 | if (!update_menu_bindings) |
7294 | chkcache = 0; | |
7295 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7296 | { |
7297 | if (newcache /* Always check first time. */ | |
7298 | /* Should we check everything when precomputing key | |
7299 | bindings? */ | |
74c1de23 RS |
7300 | /* If something had no key binding before, don't recheck it |
7301 | because that is too slow--except if we have a list of | |
7302 | rebound commands in Vdefine_key_rebound_commands, do | |
7303 | recheck any command that appears in that list. */ | |
7304 | || (CONSP (Vdefine_key_rebound_commands) | |
7305 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7306 | chkcache = 1; | |
7307 | } | |
7308 | /* We had a saved key. Is it still bound to the command? */ | |
7309 | else if (NILP (tem) | |
03cee6ae GM |
7310 | || (!EQ (tem, def) |
7311 | /* If the command is an alias for another | |
7312 | (such as lmenu.el set it up), check if the | |
7313 | original command matches the cached command. */ | |
7314 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7315 | chkcache = 1; /* Need to recompute key binding. */ |
7316 | ||
7317 | if (chkcache) | |
7318 | { | |
7319 | /* Recompute equivalent key binding. If the command is an alias | |
7320 | for another (such as lmenu.el set it up), see if the original | |
7321 | command name has equivalent keys. Otherwise look up the | |
7322 | specified command itself. We don't try both, because that | |
7323 | makes lmenu menus slow. */ | |
3626fb1a GM |
7324 | if (SYMBOLP (def) |
7325 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7326 | && ! NILP (Fget (def, Qmenu_alias))) |
7327 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7328 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7329 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7330 | if (NILP (tem)) |
7331 | { | |
f3fbd155 | 7332 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7333 | chkcache = 0; |
7334 | } | |
7335 | } | |
7539e11f | 7336 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7337 | { |
7539e11f | 7338 | tem = XCAR (cachelist); |
74c1de23 RS |
7339 | chkcache = 1; |
7340 | } | |
7341 | ||
7342 | newcache = chkcache; | |
7343 | if (chkcache) | |
7344 | { | |
7345 | tem = Fkey_description (tem); | |
7346 | if (CONSP (prefix)) | |
7347 | { | |
7539e11f KR |
7348 | if (STRINGP (XCAR (prefix))) |
7349 | tem = concat2 (XCAR (prefix), tem); | |
7350 | if (STRINGP (XCDR (prefix))) | |
7351 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7352 | } |
f3fbd155 | 7353 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7354 | } |
7355 | } | |
7356 | ||
7539e11f | 7357 | tem = XCDR (cachelist); |
74c1de23 | 7358 | if (newcache && !NILP (tem)) |
e8886a1d | 7359 | { |
74c1de23 | 7360 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7361 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7362 | } |
7363 | ||
7364 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7365 | if (notreal) | |
adc1d5c8 | 7366 | return 1; |
e8886a1d RS |
7367 | |
7368 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7369 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7370 | |
7371 | /* Include this when menu help is implemented. | |
7372 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7373 | if (!(NILP (tem) || STRINGP (tem))) | |
7374 | { | |
7375 | tem = menu_item_eval_property (tem); | |
7376 | if (!STRINGP (tem)) | |
7377 | tem = Qnil; | |
7378 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7379 | } | |
e8886a1d RS |
7380 | */ |
7381 | ||
c60ee5e7 | 7382 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 7383 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7384 | if (!NILP (tem)) |
3626fb1a | 7385 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7386 | = menu_item_eval_property (tem); |
7387 | ||
e8886a1d RS |
7388 | return 1; |
7389 | } | |
7ee32cda GM |
7390 | |
7391 | ||
7392 | \f | |
7393 | /*********************************************************************** | |
7394 | Tool-bars | |
7395 | ***********************************************************************/ | |
7396 | ||
9ea173e8 | 7397 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7398 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7399 | in the vector. */ |
7ee32cda | 7400 | |
9ea173e8 | 7401 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7402 | |
9ea173e8 GM |
7403 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7404 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7405 | |
9ea173e8 | 7406 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7407 | |
9ea173e8 | 7408 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7409 | |
9ea173e8 | 7410 | static int ntool_bar_items; |
7ee32cda | 7411 | |
9ea173e8 | 7412 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7413 | |
9ea173e8 | 7414 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7415 | Lisp_Object QCimage; |
7416 | ||
7417 | /* Function prototypes. */ | |
7418 | ||
9ea173e8 GM |
7419 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7420 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7421 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7422 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7423 | |
7424 | ||
9ea173e8 | 7425 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7426 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7427 | tool bar items found. */ |
7ee32cda GM |
7428 | |
7429 | Lisp_Object | |
9ea173e8 | 7430 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7431 | Lisp_Object reuse; |
7432 | int *nitems; | |
7433 | { | |
7434 | Lisp_Object *maps; | |
7435 | int nmaps, i; | |
7436 | Lisp_Object oquit; | |
7437 | Lisp_Object *tmaps; | |
7ee32cda GM |
7438 | |
7439 | *nitems = 0; | |
7440 | ||
7441 | /* In order to build the menus, we need to call the keymap | |
7442 | accessors. They all call QUIT. But this function is called | |
7443 | during redisplay, during which a quit is fatal. So inhibit | |
7444 | quitting while building the menus. We do this instead of | |
7445 | specbind because (1) errors will clear it anyway and (2) this | |
7446 | avoids risk of specpdl overflow. */ | |
7447 | oquit = Vinhibit_quit; | |
7448 | Vinhibit_quit = Qt; | |
c60ee5e7 | 7449 | |
9ea173e8 GM |
7450 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7451 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7452 | |
7453 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7454 | to process. */ | |
c60ee5e7 | 7455 | |
7ee32cda GM |
7456 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
7457 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7458 | { | |
7459 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7460 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7461 | nmaps = 0; | |
7462 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7463 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7464 | if (!NILP (Voverriding_local_map)) | |
7465 | maps[nmaps++] = Voverriding_local_map; | |
7466 | } | |
7467 | else | |
7468 | { | |
fd646341 KS |
7469 | /* No, so use major and minor mode keymaps and keymap property. |
7470 | Note that tool-bar bindings in the local-map and keymap | |
7471 | properties may not work reliable, as they are only | |
7472 | recognized when the tool-bar (or mode-line) is updated, | |
7473 | which does not normally happen after every command. */ | |
7474 | Lisp_Object tem; | |
7475 | int nminor; | |
7476 | nminor = current_minor_maps (NULL, &tmaps); | |
7477 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7478 | nmaps = 0; | |
7479 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7480 | maps[nmaps++] = tem; | |
7481 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7482 | nmaps += nminor; | |
7483 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7484 | } |
7485 | ||
7486 | /* Add global keymap at the end. */ | |
7487 | maps[nmaps++] = current_global_map; | |
7488 | ||
7489 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7490 | key `tool-bar'. */ |
7ee32cda GM |
7491 | for (i = nmaps - 1; i >= 0; --i) |
7492 | if (!NILP (maps[i])) | |
7493 | { | |
7494 | Lisp_Object keymap; | |
db785038 | 7495 | |
341a09cf | 7496 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7497 | if (CONSP (keymap)) |
7ee32cda GM |
7498 | { |
7499 | Lisp_Object tail; | |
c60ee5e7 | 7500 | |
7ee32cda | 7501 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ |
7539e11f | 7502 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7503 | { |
7504 | Lisp_Object keydef = XCAR (tail); | |
7505 | if (CONSP (keydef)) | |
9ea173e8 | 7506 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7507 | } |
7508 | } | |
7509 | } | |
7510 | ||
7511 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7512 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7513 | return tool_bar_items_vector; | |
7ee32cda GM |
7514 | } |
7515 | ||
7516 | ||
7517 | /* Process the definition of KEY which is DEF. */ | |
7518 | ||
7519 | static void | |
9ea173e8 | 7520 | process_tool_bar_item (key, def) |
7ee32cda GM |
7521 | Lisp_Object key, def; |
7522 | { | |
7523 | int i; | |
7524 | extern Lisp_Object Qundefined; | |
7525 | struct gcpro gcpro1, gcpro2; | |
7526 | ||
9ea173e8 | 7527 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7528 | eval. */ |
7529 | GCPRO2 (key, def); | |
7530 | ||
7531 | if (EQ (def, Qundefined)) | |
7532 | { | |
7533 | /* If a map has an explicit `undefined' as definition, | |
7534 | discard any previously made item. */ | |
9ea173e8 | 7535 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7536 | { |
9ea173e8 | 7537 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 7538 | |
9ea173e8 | 7539 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7540 | { |
9ea173e8 GM |
7541 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7542 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7543 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7544 | * sizeof (Lisp_Object))); |
9ea173e8 | 7545 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7546 | break; |
7547 | } | |
7548 | } | |
7549 | } | |
9ea173e8 GM |
7550 | else if (parse_tool_bar_item (key, def)) |
7551 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7552 | more than one definition for the same key. */ |
9ea173e8 | 7553 | append_tool_bar_item (); |
7ee32cda GM |
7554 | |
7555 | UNGCPRO; | |
7556 | } | |
7557 | ||
7558 | ||
9ea173e8 GM |
7559 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7560 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7561 | invalid. |
7562 | ||
7563 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 7564 | |
7ee32cda GM |
7565 | CAPTION is the caption of the item, If it's not a string, it is |
7566 | evaluated to get a string. | |
c60ee5e7 | 7567 | |
9ea173e8 | 7568 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7569 | as binding are currently ignored. |
7570 | ||
7571 | The following properties are recognized: | |
7572 | ||
7573 | - `:enable FORM'. | |
c60ee5e7 | 7574 | |
9ea173e8 GM |
7575 | FORM is evaluated and specifies whether the tool bar item is |
7576 | enabled or disabled. | |
c60ee5e7 | 7577 | |
7ee32cda | 7578 | - `:visible FORM' |
c60ee5e7 | 7579 | |
9ea173e8 | 7580 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 7581 | |
7ee32cda GM |
7582 | - `:filter FUNCTION' |
7583 | ||
7584 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7585 | result is stored as the new binding. | |
c60ee5e7 | 7586 | |
7ee32cda GM |
7587 | - `:button (TYPE SELECTED)' |
7588 | ||
7589 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7590 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 7591 | |
7ee32cda GM |
7592 | - `:image IMAGES' |
7593 | ||
7594 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7595 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 7596 | |
7ee32cda | 7597 | - `:help HELP-STRING'. |
c60ee5e7 | 7598 | |
9ea173e8 | 7599 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7600 | |
7601 | static int | |
9ea173e8 | 7602 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7603 | Lisp_Object key, item; |
7604 | { | |
9ea173e8 GM |
7605 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7606 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7607 | |
7608 | Lisp_Object filter = Qnil; | |
7609 | Lisp_Object caption; | |
7ee32cda | 7610 | int i; |
7ee32cda | 7611 | |
8c907a56 GM |
7612 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7613 | Rule out items that aren't lists, don't start with | |
7614 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7615 | list. */ |
7616 | if (!CONSP (item) | |
7617 | || !EQ (XCAR (item), Qmenu_item) | |
7618 | || (item = XCDR (item), | |
7619 | !CONSP (item))) | |
7620 | return 0; | |
7621 | ||
9ea173e8 | 7622 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7623 | defaults. */ |
9ea173e8 | 7624 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7625 | { |
9ea173e8 | 7626 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7627 | PROP (i) = Qnil; |
7628 | } | |
7629 | else | |
9ea173e8 GM |
7630 | tool_bar_item_properties |
7631 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 7632 | |
7ee32cda | 7633 | /* Set defaults. */ |
9ea173e8 GM |
7634 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7635 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 7636 | |
7ee32cda GM |
7637 | /* Get the caption of the item. If the caption is not a string, |
7638 | evaluate it to get a string. If we don't get a string, skip this | |
7639 | item. */ | |
7640 | caption = XCAR (item); | |
7641 | if (!STRINGP (caption)) | |
7642 | { | |
7643 | caption = menu_item_eval_property (caption); | |
7644 | if (!STRINGP (caption)) | |
7645 | return 0; | |
7646 | } | |
9ea173e8 | 7647 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7648 | |
7649 | /* Give up if rest following the caption is not a list. */ | |
7650 | item = XCDR (item); | |
7651 | if (!CONSP (item)) | |
7652 | return 0; | |
7653 | ||
7654 | /* Store the binding. */ | |
9ea173e8 | 7655 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7656 | item = XCDR (item); |
7657 | ||
8c907a56 GM |
7658 | /* Ignore cached key binding, if any. */ |
7659 | if (CONSP (item) && CONSP (XCAR (item))) | |
7660 | item = XCDR (item); | |
7661 | ||
7ee32cda GM |
7662 | /* Process the rest of the properties. */ |
7663 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7664 | { | |
7665 | Lisp_Object key, value; | |
7666 | ||
7667 | key = XCAR (item); | |
7668 | value = XCAR (XCDR (item)); | |
7669 | ||
7670 | if (EQ (key, QCenable)) | |
7671 | /* `:enable FORM'. */ | |
9ea173e8 | 7672 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7673 | else if (EQ (key, QCvisible)) |
7674 | { | |
7675 | /* `:visible FORM'. If got a visible property and that | |
7676 | evaluates to nil then ignore this item. */ | |
7677 | if (NILP (menu_item_eval_property (value))) | |
7678 | return 0; | |
7679 | } | |
7680 | else if (EQ (key, QChelp)) | |
7681 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7682 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7683 | else if (EQ (key, QCfilter)) |
7684 | /* ':filter FORM'. */ | |
7685 | filter = value; | |
7686 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7687 | { | |
7688 | /* `:button (TYPE . SELECTED)'. */ | |
7689 | Lisp_Object type, selected; | |
7690 | ||
7691 | type = XCAR (value); | |
7692 | selected = XCDR (value); | |
7693 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7694 | { | |
9ea173e8 GM |
7695 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7696 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7697 | } |
7698 | } | |
7699 | else if (EQ (key, QCimage) | |
7700 | && (CONSP (value) | |
7701 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7702 | /* Value is either a single image specification or a vector | |
27fd22dc | 7703 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7704 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7705 | } |
7706 | ||
7707 | /* If got a filter apply it on binding. */ | |
7708 | if (!NILP (filter)) | |
9ea173e8 | 7709 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7710 | = menu_item_eval_property (list2 (filter, |
7711 | list2 (Qquote, | |
9ea173e8 | 7712 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7713 | |
7714 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7715 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7716 | return 0; |
7717 | ||
7718 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7719 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7720 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7721 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 7722 | |
c60ee5e7 | 7723 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
7724 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7725 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7726 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7727 | |
7728 | return 1; | |
c60ee5e7 | 7729 | |
7ee32cda GM |
7730 | #undef PROP |
7731 | } | |
7732 | ||
7733 | ||
9ea173e8 GM |
7734 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7735 | that can be reused. */ | |
7ee32cda GM |
7736 | |
7737 | static void | |
9ea173e8 | 7738 | init_tool_bar_items (reuse) |
7ee32cda GM |
7739 | Lisp_Object reuse; |
7740 | { | |
7741 | if (VECTORP (reuse)) | |
9ea173e8 | 7742 | tool_bar_items_vector = reuse; |
7ee32cda | 7743 | else |
9ea173e8 GM |
7744 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7745 | ntool_bar_items = 0; | |
7ee32cda GM |
7746 | } |
7747 | ||
7748 | ||
9ea173e8 GM |
7749 | /* Append parsed tool bar item properties from |
7750 | tool_bar_item_properties */ | |
7ee32cda GM |
7751 | |
7752 | static void | |
9ea173e8 | 7753 | append_tool_bar_item () |
7ee32cda GM |
7754 | { |
7755 | Lisp_Object *to, *from; | |
c60ee5e7 | 7756 | |
9ea173e8 GM |
7757 | /* Enlarge tool_bar_items_vector if necessary. */ |
7758 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7759 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7760 | { |
7761 | Lisp_Object new_vector; | |
9ea173e8 | 7762 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7763 | |
7764 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7765 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7766 | XVECTOR (new_vector)->contents, |
7767 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7768 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7769 | } |
7770 | ||
9ea173e8 GM |
7771 | /* Append entries from tool_bar_item_properties to the end of |
7772 | tool_bar_items_vector. */ | |
7773 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7774 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7775 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7776 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7777 | } |
7778 | ||
7779 | ||
7780 | ||
7781 | ||
e8886a1d | 7782 | \f |
dcc408a0 RS |
7783 | /* Read a character using menus based on maps in the array MAPS. |
7784 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7785 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7786 | |
7787 | PREV_EVENT is the previous input event, or nil if we are reading | |
7788 | the first event of a key sequence. | |
7789 | ||
83d68044 | 7790 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7791 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7792 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7793 | |
7794 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7795 | and the strings associated with various map elements. |
8150596a RS |
7796 | |
7797 | This can be done with X menus or with menus put in the minibuf. | |
7798 | These are done in different ways, depending on how the input will be read. | |
7799 | Menus using X are done after auto-saving in read-char, getting the input | |
7800 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7801 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7802 | |
7617111f | 7803 | static Lisp_Object |
8150596a | 7804 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7805 | int nmaps; |
7806 | Lisp_Object *maps; | |
7807 | Lisp_Object prev_event; | |
7808 | int *used_mouse_menu; | |
284f4730 | 7809 | { |
7d6de002 | 7810 | int mapno; |
14e40288 | 7811 | register Lisp_Object name = Qnil; |
7d6de002 | 7812 | |
6569cc8d JB |
7813 | if (used_mouse_menu) |
7814 | *used_mouse_menu = 0; | |
284f4730 JB |
7815 | |
7816 | /* Use local over global Menu maps */ | |
7817 | ||
7d6de002 RS |
7818 | if (! menu_prompting) |
7819 | return Qnil; | |
7820 | ||
03361bcc RS |
7821 | /* Optionally disregard all but the global map. */ |
7822 | if (inhibit_local_menu_bar_menus) | |
7823 | { | |
7824 | maps += (nmaps - 1); | |
7825 | nmaps = 1; | |
7826 | } | |
7827 | ||
7d6de002 RS |
7828 | /* Get the menu name from the first map that has one (a prompt string). */ |
7829 | for (mapno = 0; mapno < nmaps; mapno++) | |
7830 | { | |
bdb7aa47 | 7831 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7832 | if (!NILP (name)) |
7833 | break; | |
7834 | } | |
284f4730 | 7835 | |
7d6de002 | 7836 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 7837 | if (!STRINGP (name)) |
7d6de002 RS |
7838 | return Qnil; |
7839 | ||
1f5b1641 | 7840 | #ifdef HAVE_MENUS |
7d6de002 RS |
7841 | /* If we got to this point via a mouse click, |
7842 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7843 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7844 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7845 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7846 | { |
7847 | /* Display the menu and get the selection. */ | |
7848 | Lisp_Object *realmaps | |
7849 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7850 | Lisp_Object value; | |
7851 | int nmaps1 = 0; | |
7852 | ||
7853 | /* Use the maps that are not nil. */ | |
7854 | for (mapno = 0; mapno < nmaps; mapno++) | |
7855 | if (!NILP (maps[mapno])) | |
7856 | realmaps[nmaps1++] = maps[mapno]; | |
7857 | ||
7858 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7859 | if (CONSP (value)) |
7860 | { | |
68f297c5 RS |
7861 | Lisp_Object tem; |
7862 | ||
7539e11f | 7863 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7864 | |
68f297c5 RS |
7865 | /* If we got multiple events, unread all but |
7866 | the first. | |
7867 | There is no way to prevent those unread events | |
7868 | from showing up later in last_nonmenu_event. | |
7869 | So turn symbol and integer events into lists, | |
7870 | to indicate that they came from a mouse menu, | |
7871 | so that when present in last_nonmenu_event | |
7872 | they won't confuse things. */ | |
f4e05d97 | 7873 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7874 | { |
7539e11f KR |
7875 | record_menu_key (XCAR (tem)); |
7876 | if (SYMBOLP (XCAR (tem)) | |
7877 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 7878 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 7879 | } |
68f297c5 | 7880 | |
663258f2 JB |
7881 | /* If we got more than one event, put all but the first |
7882 | onto this list to be read later. | |
7883 | Return just the first event now. */ | |
24597608 | 7884 | Vunread_command_events |
7539e11f KR |
7885 | = nconc2 (XCDR (value), Vunread_command_events); |
7886 | value = XCAR (value); | |
663258f2 | 7887 | } |
1c90c381 | 7888 | else if (NILP (value)) |
dcc408a0 | 7889 | value = Qt; |
6569cc8d JB |
7890 | if (used_mouse_menu) |
7891 | *used_mouse_menu = 1; | |
7d6de002 RS |
7892 | return value; |
7893 | } | |
1f5b1641 | 7894 | #endif /* HAVE_MENUS */ |
8150596a RS |
7895 | return Qnil ; |
7896 | } | |
7897 | ||
af2b7cc9 KS |
7898 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
7899 | We make this bigger when necessary, and never free it. */ | |
7900 | static char *read_char_minibuf_menu_text; | |
7901 | /* Size of that buffer. */ | |
7902 | static int read_char_minibuf_menu_width; | |
7903 | ||
8150596a | 7904 | static Lisp_Object |
24597608 | 7905 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
7906 | int commandflag ; |
7907 | int nmaps; | |
7908 | Lisp_Object *maps; | |
7909 | { | |
7910 | int mapno; | |
7911 | register Lisp_Object name; | |
af2b7cc9 | 7912 | int nlength; |
14e40288 | 7913 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 7914 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 7915 | int idx = -1; |
af2b7cc9 | 7916 | int nobindings = 1; |
8150596a | 7917 | Lisp_Object rest, vector; |
af2b7cc9 | 7918 | char *menu; |
8150596a | 7919 | |
8c907a56 | 7920 | vector = Qnil; |
7189cad8 | 7921 | name = Qnil; |
8c907a56 | 7922 | |
8150596a RS |
7923 | if (! menu_prompting) |
7924 | return Qnil; | |
7925 | ||
af2b7cc9 KS |
7926 | /* Make sure we have a big enough buffer for the menu text. */ |
7927 | if (read_char_minibuf_menu_text == 0) | |
7928 | { | |
7929 | read_char_minibuf_menu_width = width + 4; | |
7930 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
7931 | } | |
7932 | else if (width + 4 > read_char_minibuf_menu_width) | |
7933 | { | |
7934 | read_char_minibuf_menu_width = width + 4; | |
7935 | read_char_minibuf_menu_text | |
7936 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
7937 | } | |
7938 | menu = read_char_minibuf_menu_text; | |
7939 | ||
8150596a RS |
7940 | /* Get the menu name from the first map that has one (a prompt string). */ |
7941 | for (mapno = 0; mapno < nmaps; mapno++) | |
7942 | { | |
bdb7aa47 | 7943 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
7944 | if (!NILP (name)) |
7945 | break; | |
7946 | } | |
7947 | ||
7948 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 7949 | if (!STRINGP (name)) |
8150596a | 7950 | return Qnil; |
284f4730 | 7951 | |
af2b7cc9 | 7952 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
7953 | strcpy (menu, SDATA (name)); |
7954 | nlength = SBYTES (name); | |
af2b7cc9 KS |
7955 | menu[nlength++] = ':'; |
7956 | menu[nlength++] = ' '; | |
7957 | menu[nlength] = 0; | |
7958 | ||
7d6de002 RS |
7959 | /* Start prompting at start of first map. */ |
7960 | mapno = 0; | |
7961 | rest = maps[mapno]; | |
284f4730 | 7962 | |
af2b7cc9 KS |
7963 | /* Present the documented bindings, a line at a time. */ |
7964 | while (1) | |
284f4730 | 7965 | { |
af2b7cc9 KS |
7966 | int notfirst = 0; |
7967 | int i = nlength; | |
7968 | Lisp_Object obj; | |
7969 | int ch; | |
7970 | Lisp_Object orig_defn_macro; | |
284f4730 | 7971 | |
af2b7cc9 KS |
7972 | /* Loop over elements of map. */ |
7973 | while (i < width) | |
284f4730 | 7974 | { |
af2b7cc9 | 7975 | Lisp_Object elt; |
284f4730 | 7976 | |
af2b7cc9 KS |
7977 | /* If reached end of map, start at beginning of next map. */ |
7978 | if (NILP (rest)) | |
7979 | { | |
7980 | mapno++; | |
7981 | /* At end of last map, wrap around to first map if just starting, | |
7982 | or end this line if already have something on it. */ | |
7983 | if (mapno == nmaps) | |
7984 | { | |
7985 | mapno = 0; | |
7986 | if (notfirst || nobindings) break; | |
7987 | } | |
7988 | rest = maps[mapno]; | |
7989 | } | |
7d6de002 | 7990 | |
af2b7cc9 KS |
7991 | /* Look at the next element of the map. */ |
7992 | if (idx >= 0) | |
7993 | elt = XVECTOR (vector)->contents[idx]; | |
7994 | else | |
7995 | elt = Fcar_safe (rest); | |
7d6de002 | 7996 | |
af2b7cc9 | 7997 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 7998 | { |
af2b7cc9 KS |
7999 | /* If we found a dense table in the keymap, |
8000 | advanced past it, but start scanning its contents. */ | |
8001 | rest = Fcdr_safe (rest); | |
8002 | vector = elt; | |
8003 | idx = 0; | |
284f4730 | 8004 | } |
7d6de002 RS |
8005 | else |
8006 | { | |
af2b7cc9 KS |
8007 | /* An ordinary element. */ |
8008 | Lisp_Object event, tem; | |
7d6de002 | 8009 | |
af2b7cc9 KS |
8010 | if (idx < 0) |
8011 | { | |
8012 | event = Fcar_safe (elt); /* alist */ | |
8013 | elt = Fcdr_safe (elt); | |
8014 | } | |
8015 | else | |
8016 | { | |
8017 | XSETINT (event, idx); /* vector */ | |
8018 | } | |
284f4730 | 8019 | |
af2b7cc9 KS |
8020 | /* Ignore the element if it has no prompt string. */ |
8021 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8022 | { | |
8023 | /* 1 if the char to type matches the string. */ | |
8024 | int char_matches; | |
8025 | Lisp_Object upcased_event, downcased_event; | |
8026 | Lisp_Object desc = Qnil; | |
8027 | Lisp_Object s | |
8028 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8029 | ||
8030 | upcased_event = Fupcase (event); | |
8031 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8032 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8033 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8034 | if (! char_matches) |
8035 | desc = Fsingle_key_description (event, Qnil); | |
8036 | ||
8037 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8038 | the prefix is what the user has already typed. */ | |
8039 | tem | |
8040 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8041 | if (!NILP (tem)) | |
8042 | /* Insert equivalent keybinding. */ | |
8043 | s = concat2 (s, tem); | |
8044 | #endif | |
8045 | tem | |
8046 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8047 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8048 | { | |
8049 | /* Insert button prefix. */ | |
8050 | Lisp_Object selected | |
8051 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8052 | if (EQ (tem, QCradio)) | |
8053 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8054 | else | |
8055 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8056 | s = concat2 (tem, s); | |
8057 | } | |
c60ee5e7 | 8058 | |
af2b7cc9 KS |
8059 | |
8060 | /* If we have room for the prompt string, add it to this line. | |
8061 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8062 | if ((SCHARS (s) + i + 2 |
8063 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8064 | < width |
8065 | || !notfirst) | |
8066 | { | |
8067 | int thiswidth; | |
8068 | ||
8069 | /* Punctuate between strings. */ | |
8070 | if (notfirst) | |
8071 | { | |
8072 | strcpy (menu + i, ", "); | |
8073 | i += 2; | |
8074 | } | |
8075 | notfirst = 1; | |
8076 | nobindings = 0 ; | |
8077 | ||
8078 | /* If the char to type doesn't match the string's | |
8079 | first char, explicitly show what char to type. */ | |
8080 | if (! char_matches) | |
8081 | { | |
8082 | /* Add as much of string as fits. */ | |
d5db4077 | 8083 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8084 | if (thiswidth + i > width) |
8085 | thiswidth = width - i; | |
d5db4077 | 8086 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8087 | i += thiswidth; |
8088 | strcpy (menu + i, " = "); | |
8089 | i += 3; | |
8090 | } | |
8091 | ||
8092 | /* Add as much of string as fits. */ | |
d5db4077 | 8093 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8094 | if (thiswidth + i > width) |
8095 | thiswidth = width - i; | |
d5db4077 | 8096 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8097 | i += thiswidth; |
8098 | menu[i] = 0; | |
8099 | } | |
8100 | else | |
8101 | { | |
8102 | /* If this element does not fit, end the line now, | |
8103 | and save the element for the next line. */ | |
8104 | strcpy (menu + i, "..."); | |
8105 | break; | |
8106 | } | |
8107 | } | |
8108 | ||
8109 | /* Move past this element. */ | |
8110 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8111 | /* Handle reaching end of dense table. */ | |
8112 | idx = -1; | |
8113 | if (idx >= 0) | |
8114 | idx++; | |
8115 | else | |
8116 | rest = Fcdr_safe (rest); | |
8117 | } | |
325309f5 | 8118 | } |
8150596a | 8119 | |
af2b7cc9 | 8120 | /* Prompt with that and read response. */ |
c60ee5e7 | 8121 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8122 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8123 | |
af2b7cc9 KS |
8124 | /* Make believe its not a keyboard macro in case the help char |
8125 | is pressed. Help characters are not recorded because menu prompting | |
8126 | is not used on replay. | |
8127 | */ | |
8128 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8129 | current_kboard->defining_kbd_macro = Qnil; | |
8130 | do | |
8131 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
8132 | while (BUFFERP (obj)); | |
8133 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8134 | |
af2b7cc9 KS |
8135 | if (!INTEGERP (obj)) |
8136 | return obj; | |
8137 | else | |
8138 | ch = XINT (obj); | |
8139 | ||
8140 | if (! EQ (obj, menu_prompt_more_char) | |
8141 | && (!INTEGERP (menu_prompt_more_char) | |
8142 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8143 | { | |
8144 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8145 | store_kbd_macro_char (obj); | |
8146 | return obj; | |
8147 | } | |
8148 | /* Help char - go round again */ | |
8149 | } | |
284f4730 | 8150 | } |
284f4730 JB |
8151 | \f |
8152 | /* Reading key sequences. */ | |
8153 | ||
8154 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8155 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8156 | keymap, or nil otherwise. Return the index of the first keymap in | |
8157 | which KEY has any binding, or NMAPS if no map has a binding. | |
8158 | ||
8159 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8160 | followed by the corresponding non-meta character. Keymaps in | |
8161 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8162 | NEXT. | |
8163 | ||
88cb0656 JB |
8164 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8165 | unmodified. | |
8166 | ||
569871d2 | 8167 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8168 | |
8169 | static int | |
4e50f26a | 8170 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8171 | Lisp_Object key; |
8172 | Lisp_Object *current, *defs, *next; | |
8173 | int nmaps; | |
8174 | { | |
8175 | int i, first_binding; | |
8176 | ||
284f4730 JB |
8177 | first_binding = nmaps; |
8178 | for (i = nmaps - 1; i >= 0; i--) | |
8179 | { | |
8180 | if (! NILP (current[i])) | |
8181 | { | |
fe5b94c5 | 8182 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8183 | if (! NILP (defs[i])) |
8184 | first_binding = i; | |
8185 | } | |
8186 | else | |
8187 | defs[i] = Qnil; | |
8188 | } | |
8189 | ||
284f4730 | 8190 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8191 | if (first_binding < nmaps) |
8192 | for (i = 0; i < nmaps; i++) | |
02067692 | 8193 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8194 | |
8195 | return first_binding; | |
8196 | } | |
8197 | ||
a7f26f28 SM |
8198 | /* Structure used to keep track of partial application of key remapping |
8199 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8200 | typedef struct keyremap | |
8201 | { | |
24d80a06 | 8202 | Lisp_Object map, parent; |
a7f26f28 SM |
8203 | int start, end; |
8204 | } keyremap; | |
8205 | ||
fe5b94c5 SM |
8206 | /* Lookup KEY in MAP. |
8207 | MAP is a keymap mapping keys to key vectors or functions. | |
8208 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8209 | the function is called with PROMPT as parameter and its return | |
8210 | value is used as the return value of this function (after checking | |
8211 | that it is indeed a vector). */ | |
8212 | ||
8213 | static Lisp_Object | |
8214 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8215 | Lisp_Object map, key, prompt; | |
8216 | int do_funcall; | |
8217 | { | |
8218 | Lisp_Object next; | |
8219 | ||
8220 | next = access_keymap (map, key, 1, 0, 1); | |
8221 | ||
8222 | /* Handle symbol with autoload definition. */ | |
8223 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8224 | && CONSP (XSYMBOL (next)->function) | |
8225 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8226 | do_autoload (XSYMBOL (next)->function, next); | |
8227 | ||
8228 | /* Handle a symbol whose function definition is a keymap | |
8229 | or an array. */ | |
8230 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8231 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
8232 | || KEYMAPP (XSYMBOL (next)->function))) | |
8233 | next = XSYMBOL (next)->function; | |
8234 | ||
8235 | /* If the keymap gives a function, not an | |
8236 | array, then call the function with one arg and use | |
8237 | its value instead. */ | |
8238 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8239 | { | |
8240 | Lisp_Object tem; | |
8241 | tem = next; | |
8242 | ||
8243 | next = call1 (next, prompt); | |
8244 | /* If the function returned something invalid, | |
8245 | barf--don't ignore it. | |
8246 | (To ignore it safely, we would need to gcpro a bunch of | |
8247 | other variables.) */ | |
8248 | if (! (VECTORP (next) || STRINGP (next))) | |
8249 | error ("Function %s returns invalid key sequence", tem); | |
8250 | } | |
8251 | return next; | |
8252 | } | |
8253 | ||
8254 | /* Do one step of the key remapping used for function-key-map and | |
8255 | key-translation-map: | |
8256 | KEYBUF is the buffer holding the input events. | |
8257 | BUFSIZE is its maximum size. | |
8258 | FKEY is a pointer to the keyremap structure to use. | |
8259 | INPUT is the index of the last element in KEYBUF. | |
8260 | DOIT if non-zero says that the remapping can actually take place. | |
8261 | DIFF is used to return the number of keys added/removed by the remapping. | |
8262 | PARENT is the root of the keymap. | |
8263 | PROMPT is the prompt to use if the remapping happens through a function. | |
8264 | The return value is non-zero if the remapping actually took place. */ | |
8265 | ||
8266 | static int | |
24d80a06 SM |
8267 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
8268 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
8269 | keyremap *fkey; |
8270 | int input, doit, *diff, bufsize; | |
8271 | { | |
8272 | Lisp_Object next, key; | |
8273 | ||
8274 | key = keybuf[fkey->end++]; | |
8275 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8276 | ||
8277 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8278 | map and we're in a position to do the key remapping, replace it with | |
8279 | the binding and restart with fkey->start at the end. */ | |
8280 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
8281 | { | |
8282 | int len = XFASTINT (Flength (next)); | |
8283 | int i; | |
8284 | ||
8285 | *diff = len - (fkey->end - fkey->start); | |
8286 | ||
8287 | if (input + *diff >= bufsize) | |
8288 | error ("Key sequence too long"); | |
8289 | ||
8290 | /* Shift the keys that follow fkey->end. */ | |
8291 | if (*diff < 0) | |
8292 | for (i = fkey->end; i < input; i++) | |
8293 | keybuf[i + *diff] = keybuf[i]; | |
8294 | else if (*diff > 0) | |
8295 | for (i = input - 1; i >= fkey->end; i--) | |
8296 | keybuf[i + *diff] = keybuf[i]; | |
8297 | /* Overwrite the old keys with the new ones. */ | |
8298 | for (i = 0; i < len; i++) | |
8299 | keybuf[fkey->start + i] | |
8300 | = Faref (next, make_number (i)); | |
8301 | ||
8302 | fkey->start = fkey->end += *diff; | |
24d80a06 | 8303 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8304 | |
8305 | return 1; | |
8306 | } | |
8307 | ||
8308 | fkey->map = get_keymap (next, 0, 1); | |
8309 | ||
8310 | /* If we no longer have a bound suffix, try a new position for | |
8311 | fkey->start. */ | |
8312 | if (!CONSP (fkey->map)) | |
8313 | { | |
8314 | fkey->end = ++fkey->start; | |
24d80a06 | 8315 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8316 | } |
8317 | return 0; | |
8318 | } | |
a7f26f28 | 8319 | |
df0f2ba1 | 8320 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8321 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8322 | Prompt with PROMPT. | |
284f4730 | 8323 | Return the length of the key sequence stored. |
dcc408a0 | 8324 | Return -1 if the user rejected a command menu. |
284f4730 | 8325 | |
f4255cd1 JB |
8326 | Echo starting immediately unless `prompt' is 0. |
8327 | ||
8328 | Where a key sequence ends depends on the currently active keymaps. | |
8329 | These include any minor mode keymaps active in the current buffer, | |
8330 | the current buffer's local map, and the global map. | |
8331 | ||
8332 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8333 | to see if some trailing subsequence might be the beginning of a | |
8334 | function key's sequence. If so, we try to read the whole function | |
8335 | key, and substitute its symbolic name into the key sequence. | |
8336 | ||
fbcd35bd JB |
8337 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8338 | `double-' events into similar click events, if that would make them | |
8339 | bound. We try to turn `triple-' events first into `double-' events, | |
8340 | then into clicks. | |
f4255cd1 JB |
8341 | |
8342 | If we get a mouse click in a mode line, vertical divider, or other | |
8343 | non-text area, we treat the click as if it were prefixed by the | |
8344 | symbol denoting that area - `mode-line', `vertical-line', or | |
8345 | whatever. | |
8346 | ||
8347 | If the sequence starts with a mouse click, we read the key sequence | |
8348 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8349 | |
f4255cd1 JB |
8350 | If the user switches frames in the midst of a key sequence, we put |
8351 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8352 | read_char will return it. |
8353 | ||
8354 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8355 | from the selected window's buffer. */ | |
48e416d4 | 8356 | |
284f4730 | 8357 | static int |
ce98e608 | 8358 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8359 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8360 | Lisp_Object *keybuf; |
8361 | int bufsize; | |
84d91fda | 8362 | Lisp_Object prompt; |
309b0fc8 | 8363 | int dont_downcase_last; |
ce98e608 | 8364 | int can_return_switch_frame; |
f571ae0d | 8365 | int fix_current_buffer; |
284f4730 | 8366 | { |
db14cfc5 | 8367 | volatile Lisp_Object from_string; |
aed13378 | 8368 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8369 | |
284f4730 | 8370 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8371 | volatile int t; |
284f4730 | 8372 | |
284f4730 JB |
8373 | /* The length of the echo buffer when we started reading, and |
8374 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8375 | volatile int echo_start; |
8376 | volatile int keys_start; | |
284f4730 JB |
8377 | |
8378 | /* The number of keymaps we're scanning right now, and the number of | |
8379 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8380 | volatile int nmaps; |
8381 | volatile int nmaps_allocated = 0; | |
284f4730 | 8382 | |
284f4730 JB |
8383 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8384 | the current keymaps. */ | |
8c907a56 | 8385 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8386 | |
f4255cd1 JB |
8387 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8388 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8389 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8390 | |
e0dff5f6 | 8391 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8392 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8393 | |
30690496 DL |
8394 | /* The map from the `keymap' property to start out with at start of |
8395 | key sequence. */ | |
8c907a56 | 8396 | volatile Lisp_Object orig_keymap; |
30690496 | 8397 | |
e0dff5f6 RS |
8398 | /* 1 if we have already considered switching to the local-map property |
8399 | of the place where a mouse click occurred. */ | |
8c907a56 | 8400 | volatile int localized_local_map = 0; |
e0dff5f6 | 8401 | |
f4255cd1 JB |
8402 | /* The index in defs[] of the first keymap that has a binding for |
8403 | this key sequence. In other words, the lowest i such that | |
8404 | defs[i] is non-nil. */ | |
8c907a56 | 8405 | volatile int first_binding; |
7189cad8 | 8406 | /* Index of the first key that has no binding. |
a7f26f28 | 8407 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 8408 | volatile int first_unbound; |
284f4730 | 8409 | |
f4255cd1 | 8410 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8411 | input key. |
8412 | ||
8413 | We use this to recover after recognizing a function key. Once we | |
8414 | realize that a suffix of the current key sequence is actually a | |
8415 | function key's escape sequence, we replace the suffix with the | |
8416 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8417 | contains a new and different key sequence, so the echo area, |
8418 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8419 | this situation, we set mock_input to t, set t to 0, and jump to | |
8420 | restart_sequence; the loop will read keys from keybuf up until | |
8421 | mock_input, thus rebuilding the state; and then it will resume | |
8422 | reading characters from the keyboard. */ | |
8c907a56 | 8423 | volatile int mock_input = 0; |
284f4730 | 8424 | |
253598e4 | 8425 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8426 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8427 | and fkey.map is its binding. | |
253598e4 | 8428 | |
f4255cd1 JB |
8429 | These might be > t, indicating that all function key scanning |
8430 | should hold off until t reaches them. We do this when we've just | |
8431 | recognized a function key, to avoid searching for the function | |
8432 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 8433 | volatile keyremap fkey; |
284f4730 | 8434 | |
a612e298 | 8435 | /* Likewise, for key_translation_map. */ |
a7f26f28 | 8436 | volatile keyremap keytran; |
a612e298 | 8437 | |
fe5b94c5 SM |
8438 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
8439 | a key sequence, we put it off for later. | |
8440 | While we're reading, we keep the event here. */ | |
8c907a56 | 8441 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8442 | |
51763820 BF |
8443 | /* See the comment below... */ |
8444 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8445 | Lisp_Object first_event; |
51763820 | 8446 | #endif |
4efda7dd | 8447 | |
8c907a56 GM |
8448 | volatile Lisp_Object original_uppercase; |
8449 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8450 | |
bc536d84 | 8451 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8452 | int dummyflag = 0; |
bc536d84 | 8453 | |
3b9189f8 RS |
8454 | struct buffer *starting_buffer; |
8455 | ||
2dc00208 GM |
8456 | /* List of events for which a fake prefix key has been generated. */ |
8457 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8458 | ||
03cee6ae | 8459 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8460 | int junk; |
03cee6ae | 8461 | #endif |
4efda7dd | 8462 | |
2dc00208 GM |
8463 | struct gcpro gcpro1; |
8464 | ||
8465 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8466 | raw_keybuf_count = 0; |
8467 | ||
4efda7dd RS |
8468 | last_nonmenu_event = Qnil; |
8469 | ||
8470 | delayed_switch_frame = Qnil; | |
24d80a06 SM |
8471 | fkey.map = fkey.parent = Vfunction_key_map; |
8472 | keytran.map = keytran.parent = Vkey_translation_map; | |
a7f26f28 SM |
8473 | /* If there is no translation-map, turn off scanning. */ |
8474 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; | |
8475 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
a612e298 | 8476 | |
284f4730 JB |
8477 | if (INTERACTIVE) |
8478 | { | |
84d91fda | 8479 | if (!NILP (prompt)) |
a4ef85ee | 8480 | echo_prompt (prompt); |
f2647d04 DL |
8481 | else if (cursor_in_echo_area |
8482 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8483 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8484 | /* This doesn't put in a dash if the echo buffer is empty, so |
8485 | you don't always see a dash hanging out in the minibuffer. */ | |
8486 | echo_dash (); | |
284f4730 JB |
8487 | } |
8488 | ||
f4255cd1 JB |
8489 | /* Record the initial state of the echo area and this_command_keys; |
8490 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8491 | if (INTERACTIVE) |
df0f2ba1 | 8492 | echo_start = echo_length (); |
f4255cd1 | 8493 | keys_start = this_command_key_count; |
6321824f | 8494 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8495 | |
51763820 BF |
8496 | #if defined (GOBBLE_FIRST_EVENT) |
8497 | /* This doesn't quite work, because some of the things that read_char | |
8498 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8499 | this work right. */ |
51763820 | 8500 | |
4efda7dd RS |
8501 | /* Read the first char of the sequence specially, before setting |
8502 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8503 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8504 | &junk); |
51763820 | 8505 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8506 | |
24a40fbb GM |
8507 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8508 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8509 | from_string = Qnil; |
e0dff5f6 | 8510 | |
7b4aedb9 JB |
8511 | /* We jump here when the key sequence has been thoroughly changed, and |
8512 | we need to rescan it starting from the beginning. When we jump here, | |
8513 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8514 | replay_sequence: |
7b4aedb9 | 8515 | |
3b9189f8 | 8516 | starting_buffer = current_buffer; |
7189cad8 | 8517 | first_unbound = bufsize + 1; |
3b9189f8 | 8518 | |
f4255cd1 | 8519 | /* Build our list of keymaps. |
07d2b8de JB |
8520 | If we recognize a function key and replace its escape sequence in |
8521 | keybuf with its symbol, or if the sequence starts with a mouse | |
8522 | click and we need to switch buffers, we jump back here to rebuild | |
8523 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8524 | nmaps = 0; |
284f4730 | 8525 | |
4cbedc16 RS |
8526 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8527 | || !NILP (Voverriding_local_map)) | |
8528 | { | |
8529 | if (3 > nmaps_allocated) | |
8530 | { | |
8531 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8532 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8533 | nmaps_allocated = 3; | |
8534 | } | |
8535 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8536 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8537 | if (!NILP (Voverriding_local_map)) | |
8538 | submaps[nmaps++] = Voverriding_local_map; | |
8539 | } | |
8540 | else | |
8541 | { | |
4cbedc16 RS |
8542 | int nminor; |
8543 | int total; | |
8544 | Lisp_Object *maps; | |
8545 | ||
8546 | nminor = current_minor_maps (0, &maps); | |
8547 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8548 | ||
8549 | if (total > nmaps_allocated) | |
8550 | { | |
8551 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8552 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8553 | nmaps_allocated = total; | |
8554 | } | |
8555 | ||
8556 | if (!NILP (orig_keymap)) | |
8557 | submaps[nmaps++] = orig_keymap; | |
8558 | ||
7d1c4866 | 8559 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8560 | nminor * sizeof (submaps[0])); |
8561 | ||
8562 | nmaps += nminor; | |
8563 | ||
8564 | submaps[nmaps++] = orig_local_map; | |
8565 | } | |
8566 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8567 | |
8568 | /* Find an accurate initial value for first_binding. */ | |
8569 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8570 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8571 | break; |
8572 | ||
3b9189f8 | 8573 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8574 | t = 0; |
8575 | ||
8576 | /* These are no-ops the first time through, but if we restart, they | |
8577 | revert the echo area and this_command_keys to their original state. */ | |
8578 | this_command_key_count = keys_start; | |
df0f2ba1 | 8579 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8580 | echo_truncate (echo_start); |
8581 | ||
cca310da JB |
8582 | /* If the best binding for the current key sequence is a keymap, or |
8583 | we may be looking at a function key's escape sequence, keep on | |
8584 | reading. */ | |
a7f26f28 SM |
8585 | while (first_binding < nmaps |
8586 | /* Keep reading as long as there's a prefix binding. */ | |
8587 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
8588 | /* Don't return in the middle of a possible function key sequence, |
8589 | if the only bindings we found were via case conversion. | |
8590 | Thus, if ESC O a has a function-key-map translation | |
8591 | and ESC o has a binding, don't return after ESC O, | |
8592 | so that we can translate ESC O plus the next character. */ | |
a7f26f28 | 8593 | : (fkey.start < t || keytran.start < t)) |
284f4730 JB |
8594 | { |
8595 | Lisp_Object key; | |
7d6de002 | 8596 | int used_mouse_menu = 0; |
284f4730 | 8597 | |
7b4aedb9 JB |
8598 | /* Where the last real key started. If we need to throw away a |
8599 | key that has expanded into more than one element of keybuf | |
8600 | (say, a mouse click on the mode line which is being treated | |
8601 | as [mode-line (mouse-...)], then we backtrack to this point | |
8602 | of keybuf. */ | |
8c907a56 | 8603 | volatile int last_real_key_start; |
7b4aedb9 | 8604 | |
0a7f1fc0 JB |
8605 | /* These variables are analogous to echo_start and keys_start; |
8606 | while those allow us to restart the entire key sequence, | |
8607 | echo_local_start and keys_local_start allow us to throw away | |
8608 | just one key. */ | |
8c907a56 | 8609 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8610 | |
fe5b94c5 SM |
8611 | eassert (fkey.end == t || (fkey.end > t && fkey.end <= mock_input)); |
8612 | eassert (fkey.start <= fkey.end); | |
8613 | eassert (keytran.start <= keytran.end); | |
2cf4b7b2 | 8614 | /* key-translation-map is applied *after* function-key-map. */ |
a7f26f28 | 8615 | eassert (keytran.end <= fkey.start); |
7189cad8 | 8616 | |
a7f26f28 | 8617 | if (first_unbound < fkey.start && first_unbound < keytran.start) |
7189cad8 SM |
8618 | { /* The prefix upto first_unbound has no binding and has |
8619 | no translation left to do either, so we know it's unbound. | |
8620 | If we don't stop now, we risk staying here indefinitely | |
8621 | (if the user keeps entering fkey or keytran prefixes | |
8622 | like C-c ESC ESC ESC ESC ...) */ | |
8623 | int i; | |
8624 | for (i = first_unbound + 1; i < t; i++) | |
8625 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8626 | mock_input = t - first_unbound - 1; | |
a7f26f28 | 8627 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 8628 | fkey.map = fkey.parent; |
a7f26f28 | 8629 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 8630 | keytran.map = keytran.parent; |
7189cad8 SM |
8631 | goto replay_sequence; |
8632 | } | |
8633 | ||
284f4730 | 8634 | if (t >= bufsize) |
3fe8e9a2 | 8635 | error ("Key sequence too long"); |
284f4730 | 8636 | |
f4255cd1 JB |
8637 | if (INTERACTIVE) |
8638 | echo_local_start = echo_length (); | |
8639 | keys_local_start = this_command_key_count; | |
8640 | local_first_binding = first_binding; | |
df0f2ba1 | 8641 | |
f4255cd1 | 8642 | replay_key: |
0a7f1fc0 | 8643 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8644 | jumped back up to replay_key; in that case, these restore the |
8645 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8646 | loop. */ |
40932d1a | 8647 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8648 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8649 | this_command_key_count = keys_local_start; |
8650 | first_binding = local_first_binding; | |
8651 | ||
7e85b935 RS |
8652 | /* By default, assume each event is "real". */ |
8653 | last_real_key_start = t; | |
8654 | ||
f4255cd1 | 8655 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8656 | if (t < mock_input) |
8657 | { | |
8658 | key = keybuf[t]; | |
8659 | add_command_key (key); | |
f2647d04 DL |
8660 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8661 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8662 | echo_char (key); |
284f4730 | 8663 | } |
253598e4 JB |
8664 | |
8665 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8666 | else |
8667 | { | |
beecf6a1 | 8668 | { |
c5fdd383 KH |
8669 | #ifdef MULTI_KBOARD |
8670 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8671 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8672 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8673 | { |
5798cf15 KH |
8674 | if (!NILP (delayed_switch_frame)) |
8675 | { | |
c5fdd383 | 8676 | interrupted_kboard->kbd_queue |
5798cf15 | 8677 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8678 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8679 | delayed_switch_frame = Qnil; |
8680 | } | |
beecf6a1 | 8681 | while (t > 0) |
c5fdd383 KH |
8682 | interrupted_kboard->kbd_queue |
8683 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8684 | |
8685 | /* If the side queue is non-empty, ensure it begins with a | |
8686 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8687 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8688 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8689 | !(EVENT_HAS_PARAMETERS (key) |
8690 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8691 | Qswitch_frame)))) | |
df0f2ba1 KH |
8692 | { |
8693 | Lisp_Object frame; | |
8694 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8695 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8696 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8697 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8698 | } |
beecf6a1 | 8699 | mock_input = 0; |
24a40fbb GM |
8700 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8701 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8702 | goto replay_sequence; |
8703 | } | |
bded54dd | 8704 | #endif |
8c907a56 GM |
8705 | key = read_char (NILP (prompt), nmaps, |
8706 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8707 | &used_mouse_menu); |
8708 | } | |
284f4730 | 8709 | |
dcc408a0 RS |
8710 | /* read_char returns t when it shows a menu and the user rejects it. |
8711 | Just return -1. */ | |
8712 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8713 | { |
8714 | unbind_to (count, Qnil); | |
2dc00208 | 8715 | UNGCPRO; |
7d18f9ae RS |
8716 | return -1; |
8717 | } | |
dcc408a0 | 8718 | |
f4255cd1 | 8719 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8720 | Emacs 18 handles this by returning immediately with a |
8721 | zero, so that's what we'll do. */ | |
8c18cbfb | 8722 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8723 | { |
f4255cd1 | 8724 | t = 0; |
bc536d84 RS |
8725 | /* The Microsoft C compiler can't handle the goto that |
8726 | would go here. */ | |
309b0fc8 | 8727 | dummyflag = 1; |
bc536d84 | 8728 | break; |
cd21b839 | 8729 | } |
df0f2ba1 | 8730 | |
3cb81011 KH |
8731 | /* If the current buffer has been changed from under us, the |
8732 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8733 | if (BUFFERP (key)) |
3cb81011 | 8734 | { |
e431fcda DL |
8735 | EMACS_TIME initial_idleness_start_time; |
8736 | EMACS_SET_SECS_USECS (initial_idleness_start_time, | |
8737 | EMACS_SECS (timer_last_idleness_start_time), | |
8738 | EMACS_USECS (timer_last_idleness_start_time)); | |
3021d3a9 RS |
8739 | |
8740 | /* Resume idle state, using the same start-time as before. */ | |
8741 | timer_start_idle (); | |
8742 | timer_idleness_start_time = initial_idleness_start_time; | |
8743 | ||
3cb81011 | 8744 | mock_input = t; |
f571ae0d RS |
8745 | /* Reset the current buffer from the selected window |
8746 | in case something changed the former and not the latter. | |
8747 | This is to be more consistent with the behavior | |
8748 | of the command_loop_1. */ | |
8749 | if (fix_current_buffer) | |
a94a4335 | 8750 | { |
788f89eb | 8751 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8752 | Fkill_emacs (Qnil); |
8753 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8754 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8755 | } | |
f571ae0d | 8756 | |
24a40fbb GM |
8757 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8758 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8759 | goto replay_sequence; |
8760 | } | |
8761 | ||
3b9189f8 RS |
8762 | /* If we have a quit that was typed in another frame, and |
8763 | quit_throw_to_read_char switched buffers, | |
8764 | replay to get the right keymap. */ | |
f4e05d97 GM |
8765 | if (INTEGERP (key) |
8766 | && XINT (key) == quit_char | |
8767 | && current_buffer != starting_buffer) | |
3b9189f8 | 8768 | { |
7d18f9ae RS |
8769 | GROW_RAW_KEYBUF; |
8770 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8771 | keybuf[t++] = key; |
8772 | mock_input = t; | |
8773 | Vquit_flag = Qnil; | |
24a40fbb GM |
8774 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8775 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8776 | goto replay_sequence; |
8777 | } | |
3cb81011 | 8778 | |
284f4730 | 8779 | Vquit_flag = Qnil; |
7d18f9ae RS |
8780 | |
8781 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 8782 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
8783 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
8784 | { | |
8785 | /* If we're at the beginning of a key sequence, and the caller | |
8786 | says it's okay, go ahead and return this event. If we're | |
8787 | in the midst of a key sequence, delay it until the end. */ | |
8788 | if (t > 0 || !can_return_switch_frame) | |
8789 | { | |
8790 | delayed_switch_frame = key; | |
8791 | goto replay_key; | |
8792 | } | |
8793 | } | |
8794 | ||
8795 | GROW_RAW_KEYBUF; | |
8796 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8797 | } |
284f4730 | 8798 | |
df0f2ba1 | 8799 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8800 | in their CHAR-ADDRESS field. For example, a click on |
8801 | the mode line is prefixed by the symbol `mode-line'. | |
8802 | ||
8803 | Furthermore, key sequences beginning with mouse clicks | |
8804 | are read using the keymaps of the buffer clicked on, not | |
8805 | the current buffer. So we may have to switch the buffer | |
8806 | here. | |
8807 | ||
8808 | When we turn one event into two events, we must make sure | |
8809 | that neither of the two looks like the original--so that, | |
8810 | if we replay the events, they won't be expanded again. | |
8811 | If not for this, such reexpansion could happen either here | |
8812 | or when user programs play with this-command-keys. */ | |
8813 | if (EVENT_HAS_PARAMETERS (key)) | |
8814 | { | |
9b8eb840 | 8815 | Lisp_Object kind; |
cca310da | 8816 | |
9b8eb840 | 8817 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8818 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8819 | { |
9b8eb840 | 8820 | Lisp_Object window, posn; |
f4255cd1 | 8821 | |
9b8eb840 KH |
8822 | window = POSN_WINDOW (EVENT_START (key)); |
8823 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8824 | |
2cf066c3 GM |
8825 | if (CONSP (posn) |
8826 | || (!NILP (fake_prefixed_keys) | |
8827 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8828 | { |
2cf066c3 GM |
8829 | /* We're looking a second time at an event for which |
8830 | we generated a fake prefix key. Set | |
7e85b935 RS |
8831 | last_real_key_start appropriately. */ |
8832 | if (t > 0) | |
8833 | last_real_key_start = t - 1; | |
cd21b839 | 8834 | } |
7e85b935 RS |
8835 | |
8836 | /* Key sequences beginning with mouse clicks are | |
8837 | read using the keymaps in the buffer clicked on, | |
8838 | not the current buffer. If we're at the | |
8839 | beginning of a key sequence, switch buffers. */ | |
8840 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8841 | && WINDOWP (window) |
8842 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8843 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8844 | { |
7d18f9ae | 8845 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8846 | keybuf[t] = key; |
8847 | mock_input = t + 1; | |
8848 | ||
8849 | /* Arrange to go back to the original buffer once we're | |
8850 | done reading the key sequence. Note that we can't | |
8851 | use save_excursion_{save,restore} here, because they | |
8852 | save point as well as the current buffer; we don't | |
8853 | want to save point, because redisplay may change it, | |
8854 | to accommodate a Fset_window_start or something. We | |
8855 | don't want to do this at the top of the function, | |
8856 | because we may get input from a subprocess which | |
8857 | wants to change the selected window and stuff (say, | |
8858 | emacsclient). */ | |
8859 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8860 | ||
788f89eb | 8861 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8862 | Fkill_emacs (Qnil); |
24a40fbb | 8863 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8864 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8865 | Qlocal_map); |
8866 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8867 | goto replay_sequence; |
0a7f1fc0 | 8868 | } |
c60ee5e7 | 8869 | |
e0dff5f6 RS |
8870 | /* For a mouse click, get the local text-property keymap |
8871 | of the place clicked on, rather than point. */ | |
7ee32cda | 8872 | if (last_real_key_start == 0 |
7539e11f | 8873 | && CONSP (XCDR (key)) |
e0dff5f6 | 8874 | && ! localized_local_map) |
5ec75a55 | 8875 | { |
e0dff5f6 RS |
8876 | Lisp_Object map_here, start, pos; |
8877 | ||
8878 | localized_local_map = 1; | |
8879 | start = EVENT_START (key); | |
c60ee5e7 | 8880 | |
7539e11f | 8881 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
8882 | { |
8883 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8884 | if (INTEGERP (pos) |
8885 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8886 | { |
30690496 | 8887 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8888 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8889 | if (!EQ (map_here, orig_local_map)) |
8890 | { | |
8891 | orig_local_map = map_here; | |
8892 | keybuf[t] = key; | |
8893 | mock_input = t + 1; | |
5ec75a55 | 8894 | |
30690496 DL |
8895 | goto replay_sequence; |
8896 | } | |
8897 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 8898 | current_buffer, Qkeymap); |
30690496 DL |
8899 | if (!EQ (map_here, orig_keymap)) |
8900 | { | |
8901 | orig_keymap = map_here; | |
8902 | keybuf[t] = key; | |
8903 | mock_input = t + 1; | |
8904 | ||
e0dff5f6 RS |
8905 | goto replay_sequence; |
8906 | } | |
8907 | } | |
8908 | } | |
8909 | } | |
8910 | ||
8911 | /* Expand mode-line and scroll-bar events into two events: | |
8912 | use posn as a fake prefix key. */ | |
2dc00208 GM |
8913 | if (SYMBOLP (posn) |
8914 | && (NILP (fake_prefixed_keys) | |
8915 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 8916 | { |
7e85b935 | 8917 | if (t + 1 >= bufsize) |
3fe8e9a2 | 8918 | error ("Key sequence too long"); |
c60ee5e7 | 8919 | |
2dc00208 GM |
8920 | keybuf[t] = posn; |
8921 | keybuf[t + 1] = key; | |
8922 | mock_input = t + 2; | |
8923 | ||
8924 | /* Record that a fake prefix key has been generated | |
8925 | for KEY. Don't modify the event; this would | |
8926 | prevent proper action when the event is pushed | |
c7f4f573 | 8927 | back into unread-command-events. */ |
2dc00208 | 8928 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
8929 | |
8930 | /* If on a mode line string with a local keymap, | |
8931 | reconsider the key sequence with that keymap. */ | |
8932 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
8933 | { | |
30690496 | 8934 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
8935 | |
8936 | string = POSN_STRING (EVENT_START (key)); | |
8937 | pos = XCDR (string); | |
8938 | string = XCAR (string); | |
52e386c2 | 8939 | if (XINT (pos) >= 0 |
d5db4077 | 8940 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
8941 | { |
8942 | map = Fget_text_property (pos, Qlocal_map, string); | |
8943 | if (!NILP (map)) | |
8944 | orig_local_map = map; | |
8945 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8946 | if (!NILP (map2)) | |
8947 | orig_keymap = map2; | |
8948 | if (!NILP (map) || !NILP (map2)) | |
8949 | goto replay_sequence; | |
8950 | } | |
7ee32cda GM |
8951 | } |
8952 | ||
7e85b935 | 8953 | goto replay_key; |
5ec75a55 | 8954 | } |
db14cfc5 GM |
8955 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
8956 | && NILP (from_string)) | |
8957 | { | |
8958 | /* For a click on a string, i.e. overlay string or a | |
8959 | string displayed via the `display' property, | |
8960 | consider `local-map' and `keymap' properties of | |
8961 | that string. */ | |
8962 | Lisp_Object string, pos, map, map2; | |
8963 | ||
8964 | string = POSN_STRING (EVENT_START (key)); | |
8965 | pos = XCDR (string); | |
8966 | string = XCAR (string); | |
8967 | if (XINT (pos) >= 0 | |
d5db4077 | 8968 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
8969 | { |
8970 | map = Fget_text_property (pos, Qlocal_map, string); | |
8971 | if (!NILP (map)) | |
8972 | orig_local_map = map; | |
8973 | map2 = Fget_text_property (pos, Qkeymap, string); | |
8974 | if (!NILP (map2)) | |
8975 | orig_keymap = map2; | |
8976 | ||
8977 | if (!NILP (map) || !NILP (map2)) | |
8978 | { | |
8979 | from_string = string; | |
8980 | goto replay_sequence; | |
8981 | } | |
8982 | } | |
8983 | } | |
0a7f1fc0 | 8984 | } |
7539e11f | 8985 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 8986 | && CONSP (EVENT_START (key)) |
7539e11f | 8987 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 8988 | { |
9b8eb840 | 8989 | Lisp_Object posn; |
7e85b935 | 8990 | |
9b8eb840 | 8991 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
8992 | /* Handle menu-bar events: |
8993 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 8994 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
8995 | { |
8996 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 8997 | error ("Key sequence too long"); |
7e85b935 RS |
8998 | keybuf[t] = posn; |
8999 | keybuf[t+1] = key; | |
9000 | ||
9001 | /* Zap the position in key, so we know that we've | |
9002 | expanded it, and don't try to do so again. */ | |
f3fbd155 KR |
9003 | POSN_BUFFER_SET_POSN (EVENT_START (key), |
9004 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9005 | |
9006 | mock_input = t + 2; | |
9007 | goto replay_sequence; | |
9008 | } | |
8c18cbfb | 9009 | else if (CONSP (posn)) |
7e85b935 RS |
9010 | { |
9011 | /* We're looking at the second event of a | |
9012 | sequence which we expanded before. Set | |
9013 | last_real_key_start appropriately. */ | |
9014 | if (last_real_key_start == t && t > 0) | |
9015 | last_real_key_start = t - 1; | |
9016 | } | |
a6d53864 | 9017 | } |
284f4730 | 9018 | } |
f4255cd1 JB |
9019 | |
9020 | /* We have finally decided that KEY is something we might want | |
9021 | to look up. */ | |
284f4730 JB |
9022 | first_binding = (follow_key (key, |
9023 | nmaps - first_binding, | |
253598e4 | 9024 | submaps + first_binding, |
284f4730 | 9025 | defs + first_binding, |
4e50f26a | 9026 | submaps + first_binding) |
284f4730 | 9027 | + first_binding); |
0a7f1fc0 | 9028 | |
f4255cd1 | 9029 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9030 | if (first_binding < nmaps) |
9031 | /* This is needed for the following scenario: | |
9032 | event 0: a down-event that gets dropped by calling replay_key. | |
9033 | event 1: some normal prefix like C-h. | |
a7f26f28 SM |
9034 | After event 0, first_unbound is 0, after event 1 fkey.start |
9035 | and keytran.start are both 1, so when we see that C-h is bound, | |
65e0fbbf SM |
9036 | we need to update first_unbound. */ |
9037 | first_unbound = max (t + 1, first_unbound); | |
9038 | else | |
0a7f1fc0 | 9039 | { |
9b8eb840 | 9040 | Lisp_Object head; |
c60ee5e7 | 9041 | |
a7f26f28 | 9042 | /* Remember the position to put an upper bound on fkey.start. */ |
7189cad8 | 9043 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9044 | |
9b8eb840 | 9045 | head = EVENT_HEAD (key); |
24736fbc | 9046 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9047 | { |
9048 | read_key_sequence_cmd = Vprefix_help_command; | |
9049 | keybuf[t++] = key; | |
9050 | last_nonmenu_event = key; | |
bc536d84 RS |
9051 | /* The Microsoft C compiler can't handle the goto that |
9052 | would go here. */ | |
309b0fc8 | 9053 | dummyflag = 1; |
0d882d52 | 9054 | break; |
7e85b935 RS |
9055 | } |
9056 | ||
8c18cbfb | 9057 | if (SYMBOLP (head)) |
0a7f1fc0 | 9058 | { |
9b8eb840 KH |
9059 | Lisp_Object breakdown; |
9060 | int modifiers; | |
0a7f1fc0 | 9061 | |
9b8eb840 | 9062 | breakdown = parse_modifiers (head); |
7539e11f | 9063 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9064 | /* Attempt to reduce an unbound mouse event to a simpler |
9065 | event that is bound: | |
9066 | Drags reduce to clicks. | |
9067 | Double-clicks reduce to clicks. | |
9068 | Triple-clicks reduce to double-clicks, then to clicks. | |
9069 | Down-clicks are eliminated. | |
9070 | Double-downs reduce to downs, then are eliminated. | |
9071 | Triple-downs reduce to double-downs, then to downs, | |
9072 | then are eliminated. */ | |
9073 | if (modifiers & (down_modifier | drag_modifier | |
9074 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9075 | { |
559f9d04 RS |
9076 | while (modifiers & (down_modifier | drag_modifier |
9077 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9078 | { |
9079 | Lisp_Object new_head, new_click; | |
9080 | if (modifiers & triple_modifier) | |
9081 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9082 | else if (modifiers & double_modifier) |
9083 | modifiers &= ~double_modifier; | |
9084 | else if (modifiers & drag_modifier) | |
9085 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9086 | else |
9087 | { | |
9088 | /* Dispose of this `down' event by simply jumping | |
9089 | back to replay_key, to get another event. | |
9090 | ||
9091 | Note that if this event came from mock input, | |
9092 | then just jumping back to replay_key will just | |
9093 | hand it to us again. So we have to wipe out any | |
9094 | mock input. | |
9095 | ||
9096 | We could delete keybuf[t] and shift everything | |
9097 | after that to the left by one spot, but we'd also | |
9098 | have to fix up any variable that points into | |
9099 | keybuf, and shifting isn't really necessary | |
9100 | anyway. | |
9101 | ||
9102 | Adding prefixes for non-textual mouse clicks | |
9103 | creates two characters of mock input, and both | |
9104 | must be thrown away. If we're only looking at | |
9105 | the prefix now, we can just jump back to | |
9106 | replay_key. On the other hand, if we've already | |
9107 | processed the prefix, and now the actual click | |
9108 | itself is giving us trouble, then we've lost the | |
9109 | state of the keymaps we want to backtrack to, and | |
9110 | we need to replay the whole sequence to rebuild | |
9111 | it. | |
9112 | ||
9113 | Beyond that, only function key expansion could | |
9114 | create more than two keys, but that should never | |
9115 | generate mouse events, so it's okay to zero | |
9116 | mock_input in that case too. | |
9117 | ||
65e0fbbf SM |
9118 | FIXME: The above paragraph seems just plain |
9119 | wrong, if you consider things like | |
9120 | xterm-mouse-mode. -stef | |
9121 | ||
559f9d04 | 9122 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9123 | |
9124 | /* If mock_input > t + 1, the above simplification | |
9125 | will actually end up dropping keys on the floor. | |
9126 | This is probably OK for now, but even | |
9127 | if mock_input <= t + 1, we need to adjust fkey | |
9128 | and keytran. | |
9129 | Typical case [header-line down-mouse-N]: | |
9130 | mock_input = 2, t = 1, fkey.end = 1, | |
9131 | last_real_key_start = 0. */ | |
9132 | if (fkey.end > last_real_key_start) | |
9133 | { | |
9134 | fkey.end = fkey.start | |
9135 | = min (last_real_key_start, fkey.start); | |
9136 | fkey.map = fkey.parent; | |
9137 | if (keytran.end > last_real_key_start) | |
9138 | { | |
9139 | keytran.end = keytran.start | |
9140 | = min (last_real_key_start, keytran.start); | |
9141 | keytran.map = keytran.parent; | |
9142 | } | |
9143 | } | |
559f9d04 RS |
9144 | if (t == last_real_key_start) |
9145 | { | |
9146 | mock_input = 0; | |
9147 | goto replay_key; | |
9148 | } | |
9149 | else | |
9150 | { | |
9151 | mock_input = last_real_key_start; | |
9152 | goto replay_sequence; | |
9153 | } | |
9154 | } | |
9155 | ||
27203ead | 9156 | new_head |
7539e11f | 9157 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9158 | new_click |
9159 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9160 | |
9161 | /* Look for a binding for this new key. follow_key | |
9162 | promises that it didn't munge submaps the | |
9163 | last time we called it, since key was unbound. */ | |
27203ead RS |
9164 | first_binding |
9165 | = (follow_key (new_click, | |
9166 | nmaps - local_first_binding, | |
9167 | submaps + local_first_binding, | |
9168 | defs + local_first_binding, | |
4e50f26a | 9169 | submaps + local_first_binding) |
27203ead | 9170 | + local_first_binding); |
fbcd35bd JB |
9171 | |
9172 | /* If that click is bound, go for it. */ | |
9173 | if (first_binding < nmaps) | |
9174 | { | |
9175 | key = new_click; | |
9176 | break; | |
9177 | } | |
9178 | /* Otherwise, we'll leave key set to the drag event. */ | |
9179 | } | |
0a7f1fc0 JB |
9180 | } |
9181 | } | |
9182 | } | |
9183 | ||
284f4730 | 9184 | keybuf[t++] = key; |
7d6de002 RS |
9185 | /* Normally, last_nonmenu_event gets the previous key we read. |
9186 | But when a mouse popup menu is being used, | |
9187 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9188 | event that preceded the first level of menu. */ | |
9189 | if (!used_mouse_menu) | |
9190 | last_nonmenu_event = key; | |
284f4730 | 9191 | |
6321824f RS |
9192 | /* Record what part of this_command_keys is the current key sequence. */ |
9193 | this_single_command_key_start = this_command_key_count - t; | |
9194 | ||
65e0fbbf SM |
9195 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
9196 | /* There is a binding and it's not a prefix. | |
9197 | There is thus no function-key in this sequence. | |
9198 | Moving fkey.start is important in this case to allow keytran.start | |
9199 | to go over the sequence before we return (since we keep the | |
9200 | invariant that keytran.end <= fkey.start). */ | |
9201 | { | |
a7f26f28 | 9202 | if (fkey.start < t) |
24d80a06 | 9203 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9204 | } |
9205 | else | |
9206 | /* If the sequence is unbound, see if we can hang a function key | |
9207 | off the end of it. */ | |
fe5b94c5 SM |
9208 | /* Continue scan from fkey.end until we find a bound suffix. */ |
9209 | while (fkey.end < t) | |
a612e298 | 9210 | { |
fe5b94c5 SM |
9211 | struct gcpro gcpro1, gcpro2, gcpro3; |
9212 | int done, diff; | |
9213 | ||
9214 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); | |
9215 | done = keyremap_step (keybuf, bufsize, &fkey, | |
9216 | max (t, mock_input), | |
9217 | /* If there's a binding (i.e. | |
9218 | first_binding >= nmaps) we don't want | |
9219 | to apply this function-key-mapping. */ | |
9220 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 9221 | &diff, prompt); |
fe5b94c5 SM |
9222 | UNGCPRO; |
9223 | if (done) | |
a612e298 | 9224 | { |
fe5b94c5 | 9225 | mock_input = diff + max (t, mock_input); |
a612e298 RS |
9226 | goto replay_sequence; |
9227 | } | |
fe5b94c5 | 9228 | } |
a612e298 | 9229 | |
fe5b94c5 SM |
9230 | /* Look for this sequence in key-translation-map. |
9231 | Scan from keytran.end until we find a bound suffix. */ | |
9232 | while (keytran.end < fkey.start) | |
9233 | { | |
9234 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9235 | int done, diff; | |
a612e298 | 9236 | |
fe5b94c5 SM |
9237 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
9238 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), | |
24d80a06 | 9239 | 1, &diff, prompt); |
fe5b94c5 SM |
9240 | UNGCPRO; |
9241 | if (done) | |
9242 | { | |
9243 | mock_input = diff + max (t, mock_input); | |
9244 | /* Adjust the function-key-map counters. */ | |
9245 | fkey.end += diff; | |
9246 | fkey.start += diff; | |
9247 | ||
9248 | goto replay_sequence; | |
9249 | } | |
9250 | } | |
4e50f26a RS |
9251 | |
9252 | /* If KEY is not defined in any of the keymaps, | |
9253 | and cannot be part of a function key or translation, | |
9254 | and is an upper case letter | |
9255 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9256 | if (first_binding >= nmaps |
a7f26f28 | 9257 | && fkey.start >= t && keytran.start >= t |
8c18cbfb | 9258 | && INTEGERP (key) |
4e50f26a | 9259 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9260 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9261 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9262 | || (XINT (key) & shift_modifier))) | |
9263 | { | |
569871d2 | 9264 | Lisp_Object new_key; |
569871d2 | 9265 | |
309b0fc8 RS |
9266 | original_uppercase = key; |
9267 | original_uppercase_position = t - 1; | |
9268 | ||
831f35a2 | 9269 | if (XINT (key) & shift_modifier) |
569871d2 | 9270 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9271 | else |
569871d2 RS |
9272 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9273 | | (XINT (key) & ~0x3ffff))); | |
9274 | ||
3fe8e9a2 RS |
9275 | /* We have to do this unconditionally, regardless of whether |
9276 | the lower-case char is defined in the keymaps, because they | |
9277 | might get translated through function-key-map. */ | |
9278 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9279 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9280 | |
9281 | goto replay_sequence; | |
4e50f26a | 9282 | } |
ef8fd672 RS |
9283 | /* If KEY is not defined in any of the keymaps, |
9284 | and cannot be part of a function key or translation, | |
9285 | and is a shifted function key, | |
9286 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9287 | if (first_binding >= nmaps |
a7f26f28 | 9288 | && fkey.start >= t && keytran.start >= t |
ef8fd672 RS |
9289 | && SYMBOLP (key)) |
9290 | { | |
9291 | Lisp_Object breakdown; | |
9292 | int modifiers; | |
9293 | ||
9294 | breakdown = parse_modifiers (key); | |
7539e11f | 9295 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9296 | if (modifiers & shift_modifier) |
9297 | { | |
569871d2 | 9298 | Lisp_Object new_key; |
3fe8e9a2 RS |
9299 | |
9300 | original_uppercase = key; | |
9301 | original_uppercase_position = t - 1; | |
ef8fd672 | 9302 | |
569871d2 RS |
9303 | modifiers &= ~shift_modifier; |
9304 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9305 | XCAR (breakdown)); |
569871d2 | 9306 | |
3fe8e9a2 | 9307 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9308 | mock_input = max (t, mock_input); |
f1871a7d RS |
9309 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; |
9310 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
3fe8e9a2 RS |
9311 | |
9312 | goto replay_sequence; | |
ef8fd672 RS |
9313 | } |
9314 | } | |
284f4730 JB |
9315 | } |
9316 | ||
309b0fc8 | 9317 | if (!dummyflag) |
bc536d84 RS |
9318 | read_key_sequence_cmd = (first_binding < nmaps |
9319 | ? defs[first_binding] | |
9320 | : Qnil); | |
284f4730 | 9321 | |
cd21b839 | 9322 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9323 | unbind_to (count, Qnil); |
07f76a14 | 9324 | |
3fe8e9a2 RS |
9325 | /* Don't downcase the last character if the caller says don't. |
9326 | Don't downcase it if the result is undefined, either. */ | |
9327 | if ((dont_downcase_last || first_binding >= nmaps) | |
9328 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9329 | keybuf[t - 1] = original_uppercase; |
9330 | ||
07f76a14 JB |
9331 | /* Occasionally we fabricate events, perhaps by expanding something |
9332 | according to function-key-map, or by adding a prefix symbol to a | |
9333 | mouse click in the scroll bar or modeline. In this cases, return | |
9334 | the entire generated key sequence, even if we hit an unbound | |
9335 | prefix or a definition before the end. This means that you will | |
9336 | be able to push back the event properly, and also means that | |
9337 | read-key-sequence will always return a logical unit. | |
9338 | ||
9339 | Better ideas? */ | |
cca310da JB |
9340 | for (; t < mock_input; t++) |
9341 | { | |
f2647d04 DL |
9342 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9343 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9344 | echo_char (keybuf[t]); |
cca310da JB |
9345 | add_command_key (keybuf[t]); |
9346 | } | |
07f76a14 | 9347 | |
c60ee5e7 | 9348 | |
7d18f9ae | 9349 | |
2dc00208 | 9350 | UNGCPRO; |
284f4730 JB |
9351 | return t; |
9352 | } | |
9353 | ||
d5eecefb | 9354 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9355 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9356 | The sequence is sufficient to specify a non-prefix command in the | |
9357 | current local and global maps. | |
9358 | ||
9359 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9360 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9361 | as a continuation of the previous key. | |
9362 | ||
9363 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9364 | convert the last event to lower case. (Normally any upper case event | |
9365 | is converted to lower case if the original event is undefined and the lower | |
9366 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9367 | a key sequence to be defined. | |
9368 | ||
9369 | A C-g typed while in this function is treated like any other character, | |
9370 | and `quit-flag' is not set. | |
9371 | ||
9372 | If the key sequence starts with a mouse click, then the sequence is read | |
9373 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9374 | of the selected window as normal. | |
9375 | ||
9376 | `read-key-sequence' drops unbound button-down events, since you normally | |
9377 | only care about the click or drag events which follow them. If a drag | |
9378 | or multi-click event is unbound, but the corresponding click event would | |
9379 | be bound, `read-key-sequence' turns the event into a click event at the | |
9380 | drag's starting position. This means that you don't have to distinguish | |
9381 | between click and drag, double, or triple events unless you want to. | |
9382 | ||
9383 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9384 | lines separating windows, and scroll bars with imaginary keys | |
9385 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9386 | ||
9387 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9388 | function will process a switch-frame event if the user switches frames | |
9389 | before typing anything. If the user switches frames in the middle of a | |
9390 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9391 | is nil, then the event will be put off until after the current key sequence. | |
9392 | ||
9393 | `read-key-sequence' checks `function-key-map' for function key | |
9394 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9395 | `function-key-map' for more details. | |
9396 | ||
9397 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9398 | that this key sequence is being read by something that will | |
9399 | read commands one after another. It should be nil if the caller | |
9400 | will read just one key sequence. */) | |
d5eecefb RS |
9401 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9402 | command_loop) | |
309b0fc8 | 9403 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9404 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9405 | { |
9406 | Lisp_Object keybuf[30]; | |
9407 | register int i; | |
03cee6ae | 9408 | struct gcpro gcpro1; |
aed13378 | 9409 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9410 | |
9411 | if (!NILP (prompt)) | |
b7826503 | 9412 | CHECK_STRING (prompt); |
284f4730 JB |
9413 | QUIT; |
9414 | ||
d5eecefb RS |
9415 | specbind (Qinput_method_exit_on_first_char, |
9416 | (NILP (command_loop) ? Qt : Qnil)); | |
9417 | specbind (Qinput_method_use_echo_area, | |
9418 | (NILP (command_loop) ? Qt : Qnil)); | |
9419 | ||
284f4730 JB |
9420 | bzero (keybuf, sizeof keybuf); |
9421 | GCPRO1 (keybuf[0]); | |
9422 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9423 | ||
daa37602 | 9424 | if (NILP (continue_echo)) |
6321824f RS |
9425 | { |
9426 | this_command_key_count = 0; | |
63020c46 | 9427 | this_command_key_count_reset = 0; |
6321824f RS |
9428 | this_single_command_key_start = 0; |
9429 | } | |
c0a58692 | 9430 | |
d0c48478 | 9431 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9432 | if (display_hourglass_p) |
9433 | cancel_hourglass (); | |
d0c48478 GM |
9434 | #endif |
9435 | ||
309b0fc8 | 9436 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9437 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9438 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9439 | |
ae18aa3b | 9440 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9441 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9442 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9443 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9444 | if (display_hourglass_p) |
9445 | start_hourglass (); | |
ae18aa3b | 9446 | #endif |
d0c48478 GM |
9447 | #endif |
9448 | ||
dcc408a0 RS |
9449 | if (i == -1) |
9450 | { | |
9451 | Vquit_flag = Qt; | |
9452 | QUIT; | |
9453 | } | |
284f4730 | 9454 | UNGCPRO; |
d5eecefb | 9455 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9456 | } |
e39da3d7 RS |
9457 | |
9458 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9459 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9460 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9461 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9462 | command_loop) | |
e39da3d7 | 9463 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9464 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9465 | { |
9466 | Lisp_Object keybuf[30]; | |
9467 | register int i; | |
03cee6ae | 9468 | struct gcpro gcpro1; |
aed13378 | 9469 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9470 | |
9471 | if (!NILP (prompt)) | |
b7826503 | 9472 | CHECK_STRING (prompt); |
e39da3d7 RS |
9473 | QUIT; |
9474 | ||
d5eecefb RS |
9475 | specbind (Qinput_method_exit_on_first_char, |
9476 | (NILP (command_loop) ? Qt : Qnil)); | |
9477 | specbind (Qinput_method_use_echo_area, | |
9478 | (NILP (command_loop) ? Qt : Qnil)); | |
9479 | ||
e39da3d7 RS |
9480 | bzero (keybuf, sizeof keybuf); |
9481 | GCPRO1 (keybuf[0]); | |
9482 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9483 | ||
9484 | if (NILP (continue_echo)) | |
9485 | { | |
9486 | this_command_key_count = 0; | |
63020c46 | 9487 | this_command_key_count_reset = 0; |
e39da3d7 RS |
9488 | this_single_command_key_start = 0; |
9489 | } | |
9490 | ||
d0c48478 | 9491 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9492 | if (display_hourglass_p) |
9493 | cancel_hourglass (); | |
d0c48478 GM |
9494 | #endif |
9495 | ||
e39da3d7 RS |
9496 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9497 | prompt, ! NILP (dont_downcase_last), | |
9498 | ! NILP (can_return_switch_frame), 0); | |
9499 | ||
d0c48478 | 9500 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9501 | if (display_hourglass_p) |
9502 | start_hourglass (); | |
d0c48478 GM |
9503 | #endif |
9504 | ||
e39da3d7 RS |
9505 | if (i == -1) |
9506 | { | |
9507 | Vquit_flag = Qt; | |
9508 | QUIT; | |
9509 | } | |
9510 | UNGCPRO; | |
d5eecefb | 9511 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9512 | } |
284f4730 | 9513 | \f |
158f7532 | 9514 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9515 | doc: /* Execute CMD as an editor command. |
9516 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9517 | Optional second arg RECORD-FLAG non-nil | |
9518 | means unconditionally put this command in `command-history'. | |
9519 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9520 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9521 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9522 | The argument SPECIAL, if non-nil, means that this command is executing | |
9523 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9524 | (cmd, record_flag, keys, special) |
9525 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9526 | { |
9527 | register Lisp_Object final; | |
9528 | register Lisp_Object tem; | |
9529 | Lisp_Object prefixarg; | |
9530 | struct backtrace backtrace; | |
9531 | extern int debug_on_next_call; | |
9532 | ||
284f4730 JB |
9533 | debug_on_next_call = 0; |
9534 | ||
158f7532 RS |
9535 | if (NILP (special)) |
9536 | { | |
9537 | prefixarg = current_kboard->Vprefix_arg; | |
9538 | Vcurrent_prefix_arg = prefixarg; | |
9539 | current_kboard->Vprefix_arg = Qnil; | |
9540 | } | |
9541 | else | |
9542 | prefixarg = Qnil; | |
9543 | ||
8c18cbfb | 9544 | if (SYMBOLP (cmd)) |
284f4730 JB |
9545 | { |
9546 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9547 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9548 | { |
9549 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9550 | if (!NILP (tem)) | |
9551 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9552 | } | |
284f4730 JB |
9553 | } |
9554 | ||
01e26217 | 9555 | while (1) |
284f4730 | 9556 | { |
ffd56f97 | 9557 | final = Findirect_function (cmd); |
284f4730 JB |
9558 | |
9559 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9560 | { |
9561 | struct gcpro gcpro1, gcpro2; | |
9562 | ||
9563 | GCPRO2 (cmd, prefixarg); | |
9564 | do_autoload (final, cmd); | |
9565 | UNGCPRO; | |
9566 | } | |
284f4730 JB |
9567 | else |
9568 | break; | |
9569 | } | |
9570 | ||
8c18cbfb | 9571 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9572 | { |
9573 | /* If requested, place the macro in the command history. For | |
9574 | other sorts of commands, call-interactively takes care of | |
9575 | this. */ | |
e57d8fd8 | 9576 | if (!NILP (record_flag)) |
f4385381 RS |
9577 | { |
9578 | Vcommand_history | |
9579 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9580 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9581 | Vcommand_history); | |
9582 | ||
9583 | /* Don't keep command history around forever. */ | |
9584 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9585 | { | |
9586 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9587 | if (CONSP (tem)) | |
f3fbd155 | 9588 | XSETCDR (tem, Qnil); |
f4385381 RS |
9589 | } |
9590 | } | |
284f4730 | 9591 | |
caa06051 | 9592 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 9593 | } |
f4385381 | 9594 | |
8c18cbfb | 9595 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9596 | { |
9597 | backtrace.next = backtrace_list; | |
9598 | backtrace_list = &backtrace; | |
9599 | backtrace.function = &Qcall_interactively; | |
9600 | backtrace.args = &cmd; | |
9601 | backtrace.nargs = 1; | |
9602 | backtrace.evalargs = 0; | |
9603 | ||
e57d8fd8 | 9604 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9605 | |
9606 | backtrace_list = backtrace.next; | |
9607 | return tem; | |
9608 | } | |
9609 | return Qnil; | |
9610 | } | |
c970a760 GM |
9611 | |
9612 | ||
284f4730 | 9613 | \f |
284f4730 | 9614 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9615 | 1, 1, "P", |
9616 | doc: /* Read function name, then read its arguments and call it. */) | |
9617 | (prefixarg) | |
284f4730 JB |
9618 | Lisp_Object prefixarg; |
9619 | { | |
9620 | Lisp_Object function; | |
9621 | char buf[40]; | |
2e1a49ad SM |
9622 | int saved_last_point_position; |
9623 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9624 | Lisp_Object bindings, value; |
2e1a49ad | 9625 | struct gcpro gcpro1, gcpro2, gcpro3; |
284f4730 | 9626 | |
b0f2a7bf KH |
9627 | saved_keys = Fvector (this_command_key_count, |
9628 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9629 | saved_last_point_position_buffer = last_point_position_buffer; |
9630 | saved_last_point_position = last_point_position; | |
284f4730 | 9631 | buf[0] = 0; |
2e1a49ad | 9632 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9633 | |
9634 | if (EQ (prefixarg, Qminus)) | |
9635 | strcpy (buf, "- "); | |
7539e11f | 9636 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9637 | strcpy (buf, "C-u "); |
7539e11f | 9638 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9639 | { |
9640 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9641 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9642 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9643 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9644 | else |
9645 | abort (); | |
9646 | } | |
8c18cbfb | 9647 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9648 | { |
9649 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9650 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9651 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9652 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9653 | else |
9654 | abort (); | |
9655 | } | |
284f4730 JB |
9656 | |
9657 | /* This isn't strictly correct if execute-extended-command | |
9658 | is bound to anything else. Perhaps it should use | |
9659 | this_command_keys? */ | |
9660 | strcat (buf, "M-x "); | |
9661 | ||
9662 | /* Prompt with buf, and then read a string, completing from and | |
9663 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9664 | any initial input. Save the command read on the extended-command |
03b4122a | 9665 | history list. */ |
284f4730 JB |
9666 | function = Fcompleting_read (build_string (buf), |
9667 | Vobarray, Qcommandp, | |
4328577a KH |
9668 | Qt, Qnil, Qextended_command_history, Qnil, |
9669 | Qnil); | |
284f4730 | 9670 | |
d5db4077 | 9671 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9672 | error ("No command name given"); |
9673 | ||
1113d9db JB |
9674 | /* Set this_command_keys to the concatenation of saved_keys and |
9675 | function, followed by a RET. */ | |
284f4730 | 9676 | { |
b0f2a7bf | 9677 | Lisp_Object *keys; |
284f4730 | 9678 | int i; |
284f4730 | 9679 | |
1113d9db | 9680 | this_command_key_count = 0; |
63020c46 | 9681 | this_command_key_count_reset = 0; |
6321824f | 9682 | this_single_command_key_start = 0; |
1113d9db | 9683 | |
b0f2a7bf KH |
9684 | keys = XVECTOR (saved_keys)->contents; |
9685 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9686 | add_command_key (keys[i]); | |
1113d9db | 9687 | |
1b049b51 | 9688 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9689 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9690 | |
301738ed | 9691 | add_command_key (make_number ('\015')); |
284f4730 JB |
9692 | } |
9693 | ||
2e1a49ad SM |
9694 | last_point_position = saved_last_point_position; |
9695 | last_point_position_buffer = saved_last_point_position_buffer; | |
9696 | ||
284f4730 JB |
9697 | UNGCPRO; |
9698 | ||
0a7f1fc0 | 9699 | function = Fintern (function, Qnil); |
d8bcf58e | 9700 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9701 | Vthis_command = function; |
9702 | real_this_command = function; | |
284f4730 | 9703 | |
6526ab49 RS |
9704 | /* If enabled, show which key runs this command. */ |
9705 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9706 | && NILP (Vexecuting_macro) |
6526ab49 | 9707 | && SYMBOLP (function)) |
5434fce6 | 9708 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9709 | Qt, Qnil, Qnil); |
5434fce6 RS |
9710 | else |
9711 | bindings = Qnil; | |
6526ab49 | 9712 | |
5434fce6 RS |
9713 | value = Qnil; |
9714 | GCPRO2 (bindings, value); | |
9715 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9716 | |
5434fce6 | 9717 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9718 | if (!NILP (bindings) |
ee112567 KH |
9719 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9720 | Qmouse_movement))) | |
5434fce6 RS |
9721 | { |
9722 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9723 | int delay_time; |
985f9f66 | 9724 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9725 | /* This command displayed something in the echo area; |
9726 | so wait a few seconds, then display our suggestion message. */ | |
9727 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9728 | ? XINT (Vsuggest_key_bindings) : 2); | |
9729 | else | |
9730 | /* This command left the echo area empty, | |
9731 | so display our message immediately. */ | |
9732 | delay_time = 0; | |
9733 | ||
9734 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9735 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9736 | { |
5434fce6 RS |
9737 | Lisp_Object binding; |
9738 | char *newmessage; | |
985f9f66 | 9739 | int message_p = push_message (); |
331379bf | 9740 | int count = SPECPDL_INDEX (); |
5434fce6 | 9741 | |
65efd7da | 9742 | record_unwind_protect (pop_message_unwind, Qnil); |
5434fce6 RS |
9743 | binding = Fkey_description (bindings); |
9744 | ||
9745 | newmessage | |
d5db4077 KR |
9746 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
9747 | + SBYTES (binding) | |
5434fce6 | 9748 | + 100); |
3ababa60 | 9749 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
9750 | SDATA (SYMBOL_NAME (function)), |
9751 | SDATA (binding)); | |
301738ed RS |
9752 | message2_nolog (newmessage, |
9753 | strlen (newmessage), | |
9754 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9755 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9756 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9757 | Qnil, Qnil)) |
9758 | && message_p) | |
9759 | restore_message (); | |
9760 | ||
c970a760 | 9761 | unbind_to (count, Qnil); |
6526ab49 RS |
9762 | } |
9763 | } | |
9764 | ||
5434fce6 | 9765 | RETURN_UNGCPRO (value); |
284f4730 | 9766 | } |
6526ab49 | 9767 | |
284f4730 | 9768 | \f |
d9d4c147 | 9769 | /* Return nonzero if input events are pending. */ |
284f4730 | 9770 | |
dfcf069d | 9771 | int |
284f4730 JB |
9772 | detect_input_pending () |
9773 | { | |
9774 | if (!input_pending) | |
d9d4c147 KH |
9775 | get_input_pending (&input_pending, 0); |
9776 | ||
9777 | return input_pending; | |
9778 | } | |
9779 | ||
b1878f45 | 9780 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9781 | |
dfcf069d | 9782 | int |
87dd9b9b RS |
9783 | detect_input_pending_run_timers (do_display) |
9784 | int do_display; | |
d9d4c147 | 9785 | { |
87dd9b9b RS |
9786 | int old_timers_run = timers_run; |
9787 | ||
d9d4c147 KH |
9788 | if (!input_pending) |
9789 | get_input_pending (&input_pending, 1); | |
284f4730 | 9790 | |
87dd9b9b | 9791 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9792 | { |
3007ebfb | 9793 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9794 | /* The following fixes a bug when using lazy-lock with |
9795 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9796 | from an idle timer function. The symptom of the bug is that | |
9797 | the cursor sometimes doesn't become visible until the next X | |
9798 | event is processed. --gerd. */ | |
9799 | if (rif) | |
9800 | rif->flush_display (NULL); | |
9801 | } | |
87dd9b9b | 9802 | |
284f4730 JB |
9803 | return input_pending; |
9804 | } | |
9805 | ||
ffd56f97 JB |
9806 | /* This is called in some cases before a possible quit. |
9807 | It cases the next call to detect_input_pending to recompute input_pending. | |
9808 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9809 | |
9810 | void | |
ffd56f97 JB |
9811 | clear_input_pending () |
9812 | { | |
9813 | input_pending = 0; | |
9814 | } | |
9815 | ||
b1878f45 RS |
9816 | /* Return nonzero if there are pending requeued events. |
9817 | This isn't used yet. The hope is to make wait_reading_process_input | |
27fd22dc | 9818 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9819 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9820 | to do in that case. It isn't trivial. */ | |
9821 | ||
dfcf069d | 9822 | int |
b1878f45 RS |
9823 | requeued_events_pending_p () |
9824 | { | |
9825 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9826 | } | |
9827 | ||
9828 | ||
284f4730 | 9829 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9830 | doc: /* Return t if command input is currently available with no wait. |
9831 | Actually, the value is nil only if we can be sure that no input is available; | |
9832 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9833 | () |
284f4730 | 9834 | { |
24597608 | 9835 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9836 | return (Qt); |
9837 | ||
20057d52 | 9838 | get_filtered_input_pending (&input_pending, 1, 1); |
d9d4c147 | 9839 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
9840 | } |
9841 | ||
9842 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
9843 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
9844 | () | |
284f4730 | 9845 | { |
5160df46 | 9846 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9847 | Lisp_Object val; |
9848 | ||
9849 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9850 | return Fvector (total_keys, keys); |
284f4730 JB |
9851 | else |
9852 | { | |
5160df46 JB |
9853 | val = Fvector (NUM_RECENT_KEYS, keys); |
9854 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9855 | XVECTOR (val)->contents, |
9856 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9857 | bcopy (keys, |
284f4730 JB |
9858 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9859 | recent_keys_index * sizeof (Lisp_Object)); | |
9860 | return val; | |
9861 | } | |
9862 | } | |
9863 | ||
9864 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 9865 | doc: /* Return the key sequence that invoked this command. |
92501652 | 9866 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 9867 | the last key sequence that has been read. |
4707d2d0 PJ |
9868 | The value is a string or a vector. */) |
9869 | () | |
284f4730 | 9870 | { |
86e5706b RS |
9871 | return make_event_array (this_command_key_count, |
9872 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9873 | } |
9874 | ||
e39da3d7 | 9875 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
9876 | doc: /* Return the key sequence that invoked this command, as a vector. |
9877 | However, if the command has called `read-key-sequence', it returns | |
4052e7bb | 9878 | the last key sequence that has been read. */) |
4707d2d0 | 9879 | () |
e39da3d7 RS |
9880 | { |
9881 | return Fvector (this_command_key_count, | |
9882 | XVECTOR (this_command_keys)->contents); | |
9883 | } | |
9884 | ||
6321824f RS |
9885 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
9886 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 9887 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
9888 | More generally, it returns the last key sequence read, either by |
9889 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9890 | Unlike `this-command-keys', this function's value |
9891 | does not include prefix arguments. | |
9892 | The value is always a vector. */) | |
9893 | () | |
6321824f | 9894 | { |
e39da3d7 RS |
9895 | return Fvector (this_command_key_count |
9896 | - this_single_command_key_start, | |
9897 | (XVECTOR (this_command_keys)->contents | |
9898 | + this_single_command_key_start)); | |
6321824f RS |
9899 | } |
9900 | ||
7d18f9ae RS |
9901 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
9902 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 9903 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
9904 | More generally, it returns the last key sequence read, either by |
9905 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
9906 | Unlike `this-single-command-keys', this function's value |
9907 | shows the events before all translations (except for input methods). | |
9908 | The value is always a vector. */) | |
9909 | () | |
7d18f9ae RS |
9910 | { |
9911 | return Fvector (raw_keybuf_count, | |
9912 | (XVECTOR (raw_keybuf)->contents)); | |
9913 | } | |
9914 | ||
71918b75 | 9915 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 9916 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
9917 | doc: /* Make the unread events replace the last command and echo. |
9918 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
9919 | |
9920 | `universal-argument-other-key' rereads the event just typed. | |
9921 | It then gets translated through `function-key-map'. | |
63020c46 RS |
9922 | The translated event has to replace the real events, |
9923 | both in the value of (this-command-keys) and in echoing. | |
9924 | To achieve this, `universal-argument-other-key' calls | |
9925 | `reset-this-command-lengths', which discards the record of reading | |
9926 | these events the first time. */) | |
4707d2d0 | 9927 | () |
71918b75 | 9928 | { |
22b94eeb RS |
9929 | this_command_key_count = before_command_key_count; |
9930 | if (this_command_key_count < this_single_command_key_start) | |
9931 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 9932 | |
22b94eeb RS |
9933 | echo_truncate (before_command_echo_length); |
9934 | ||
63020c46 RS |
9935 | /* Cause whatever we put into unread-command-events |
9936 | to echo as if it were being freshly read from the keyboard. */ | |
9937 | this_command_key_count_reset = 1; | |
9938 | ||
6e5742a0 | 9939 | return Qnil; |
71918b75 RS |
9940 | } |
9941 | ||
82e6e5af | 9942 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 9943 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 9944 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
9945 | Also clear the record of the last 100 events, unless optional arg |
9946 | KEEP-RECORD is non-nil. */) | |
9947 | (keep_record) | |
9948 | Lisp_Object keep_record; | |
82e6e5af | 9949 | { |
fb0dde6c | 9950 | int i; |
c60ee5e7 | 9951 | |
82e6e5af | 9952 | this_command_key_count = 0; |
63020c46 | 9953 | this_command_key_count_reset = 0; |
fb0dde6c | 9954 | |
ab1959fc KS |
9955 | if (NILP (keep_record)) |
9956 | { | |
9957 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
9958 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
9959 | total_keys = 0; | |
9960 | recent_keys_index = 0; | |
9961 | } | |
82e6e5af RS |
9962 | return Qnil; |
9963 | } | |
9964 | ||
284f4730 | 9965 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
9966 | doc: /* Return the current depth in recursive edits. */) |
9967 | () | |
284f4730 JB |
9968 | { |
9969 | Lisp_Object temp; | |
bb9e9bed | 9970 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
9971 | return temp; |
9972 | } | |
9973 | ||
9974 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
9975 | "FOpen dribble file: ", |
9976 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
9977 | If FILE is nil, close any open dribble file. */) | |
9978 | (file) | |
284f4730 JB |
9979 | Lisp_Object file; |
9980 | { | |
6cb52def | 9981 | if (dribble) |
284f4730 | 9982 | { |
6cb52def KH |
9983 | fclose (dribble); |
9984 | dribble = 0; | |
284f4730 | 9985 | } |
6cb52def | 9986 | if (!NILP (file)) |
284f4730 JB |
9987 | { |
9988 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 9989 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
9990 | if (dribble == 0) |
9991 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
9992 | } |
9993 | return Qnil; | |
9994 | } | |
9995 | ||
9996 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 9997 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 9998 | Also end any kbd macro being defined. */) |
4707d2d0 | 9999 | () |
284f4730 | 10000 | { |
2b17d5ed KS |
10001 | if (!NILP (current_kboard->defining_kbd_macro)) |
10002 | { | |
10003 | /* Discard the last command from the macro. */ | |
10004 | Fcancel_kbd_macro_events (); | |
10005 | end_kbd_macro (); | |
10006 | } | |
10007 | ||
284f4730 JB |
10008 | update_mode_lines++; |
10009 | ||
24597608 | 10010 | Vunread_command_events = Qnil; |
86e5706b | 10011 | unread_command_char = -1; |
284f4730 JB |
10012 | |
10013 | discard_tty_input (); | |
10014 | ||
7ee32cda | 10015 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 10016 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
10017 | input_pending = 0; |
10018 | ||
10019 | return Qnil; | |
10020 | } | |
10021 | \f | |
10022 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10023 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10024 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10025 | control, run a subshell instead. | |
10026 | ||
10027 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10028 | to be read as terminal input by Emacs's parent, after suspension. | |
10029 | ||
10030 | Before suspending, run the normal hook `suspend-hook'. | |
10031 | After resumption run the normal hook `suspend-resume-hook'. | |
10032 | ||
10033 | Some operating systems cannot stop the Emacs process and resume it later. | |
10034 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10035 | (stuffstring) | |
284f4730 JB |
10036 | Lisp_Object stuffstring; |
10037 | { | |
aed13378 | 10038 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10039 | int old_height, old_width; |
10040 | int width, height; | |
03cee6ae | 10041 | struct gcpro gcpro1; |
284f4730 JB |
10042 | |
10043 | if (!NILP (stuffstring)) | |
b7826503 | 10044 | CHECK_STRING (stuffstring); |
284f4730 | 10045 | |
1e95ed28 JB |
10046 | /* Run the functions in suspend-hook. */ |
10047 | if (!NILP (Vrun_hooks)) | |
10048 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10049 | |
b7d2ebbf | 10050 | GCPRO1 (stuffstring); |
ff11dfa1 | 10051 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
10052 | reset_sys_modes (); |
10053 | /* sys_suspend can get an error if it tries to fork a subshell | |
10054 | and the system resources aren't available for that. */ | |
91a0da02 | 10055 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 10056 | Qnil); |
284f4730 | 10057 | stuff_buffered_input (stuffstring); |
8026024c KH |
10058 | if (cannot_suspend) |
10059 | sys_subshell (); | |
10060 | else | |
10061 | sys_suspend (); | |
284f4730 JB |
10062 | unbind_to (count, Qnil); |
10063 | ||
10064 | /* Check if terminal/window size has changed. | |
10065 | Note that this is not useful when we are running directly | |
10066 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 10067 | get_frame_size (&width, &height); |
284f4730 | 10068 | if (width != old_width || height != old_height) |
788f89eb | 10069 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10070 | |
1e95ed28 | 10071 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10072 | if (!NILP (Vrun_hooks)) |
10073 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10074 | |
284f4730 JB |
10075 | UNGCPRO; |
10076 | return Qnil; | |
10077 | } | |
10078 | ||
10079 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10080 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10081 | |
07a59269 | 10082 | void |
284f4730 JB |
10083 | stuff_buffered_input (stuffstring) |
10084 | Lisp_Object stuffstring; | |
10085 | { | |
284f4730 | 10086 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 10087 | #ifdef BSD_SYSTEM |
284f4730 | 10088 | #ifndef BSD4_1 |
612b78ef | 10089 | register unsigned char *p; |
612b78ef | 10090 | |
8c18cbfb | 10091 | if (STRINGP (stuffstring)) |
284f4730 JB |
10092 | { |
10093 | register int count; | |
10094 | ||
d5db4077 KR |
10095 | p = SDATA (stuffstring); |
10096 | count = SBYTES (stuffstring); | |
284f4730 JB |
10097 | while (count-- > 0) |
10098 | stuff_char (*p++); | |
10099 | stuff_char ('\n'); | |
10100 | } | |
c60ee5e7 | 10101 | |
284f4730 | 10102 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10103 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 10104 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 10105 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10106 | { |
da8f7368 | 10107 | int idx; |
c60ee5e7 | 10108 | |
beecf6a1 KH |
10109 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10110 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10111 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10112 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10113 | |
3b8f9651 | 10114 | kbd_fetch_ptr->kind = NO_EVENT; |
da8f7368 GM |
10115 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
10116 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
10117 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 10118 | } |
c60ee5e7 | 10119 | |
284f4730 JB |
10120 | input_pending = 0; |
10121 | #endif | |
6df54671 | 10122 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
10123 | } |
10124 | \f | |
dfcf069d | 10125 | void |
ffd56f97 JB |
10126 | set_waiting_for_input (time_to_clear) |
10127 | EMACS_TIME *time_to_clear; | |
284f4730 | 10128 | { |
ffd56f97 | 10129 | input_available_clear_time = time_to_clear; |
284f4730 JB |
10130 | |
10131 | /* Tell interrupt_signal to throw back to read_char, */ | |
10132 | waiting_for_input = 1; | |
10133 | ||
10134 | /* If interrupt_signal was called before and buffered a C-g, | |
10135 | make it run again now, to avoid timing error. */ | |
10136 | if (!NILP (Vquit_flag)) | |
10137 | quit_throw_to_read_char (); | |
284f4730 JB |
10138 | } |
10139 | ||
07a59269 | 10140 | void |
284f4730 JB |
10141 | clear_waiting_for_input () |
10142 | { | |
10143 | /* Tell interrupt_signal not to throw back to read_char, */ | |
10144 | waiting_for_input = 0; | |
ffd56f97 | 10145 | input_available_clear_time = 0; |
284f4730 JB |
10146 | } |
10147 | ||
27fd22dc | 10148 | /* This routine is called at interrupt level in response to C-g. |
c60ee5e7 | 10149 | |
d4e68eea GM |
10150 | If interrupt_input, this is the handler for SIGINT. Otherwise, it |
10151 | is called from kbd_buffer_store_event, in handling SIGIO or | |
10152 | SIGTINT. | |
284f4730 | 10153 | |
d4e68eea GM |
10154 | If `waiting_for_input' is non zero, then unless `echoing' is |
10155 | nonzero, immediately throw back to read_char. | |
284f4730 | 10156 | |
d4e68eea GM |
10157 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
10158 | eval to throw, when it gets a chance. If quit-flag is already | |
10159 | non-nil, it stops the job right away. */ | |
284f4730 | 10160 | |
14e40288 | 10161 | static SIGTYPE |
91c049d4 RS |
10162 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10163 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
10164 | { |
10165 | char c; | |
10166 | /* Must preserve main program's value of errno. */ | |
10167 | int old_errno = errno; | |
788f89eb | 10168 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 10169 | |
5970a8cb | 10170 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
10171 | if (!read_socket_hook && NILP (Vwindow_system)) |
10172 | { | |
10173 | /* USG systems forget handlers when they are used; | |
10174 | must reestablish each time */ | |
10175 | signal (SIGINT, interrupt_signal); | |
10176 | signal (SIGQUIT, interrupt_signal); | |
10177 | } | |
284f4730 JB |
10178 | #endif /* USG */ |
10179 | ||
10180 | cancel_echoing (); | |
10181 | ||
31e4e97b | 10182 | if (!NILP (Vquit_flag) |
788f89eb | 10183 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 10184 | { |
31e4e97b EZ |
10185 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10186 | another SIGINT, it might be harmful due to non-reentrancy | |
10187 | in I/O functions. */ | |
10188 | sigblock (sigmask (SIGINT)); | |
10189 | ||
284f4730 JB |
10190 | fflush (stdout); |
10191 | reset_sys_modes (); | |
31e4e97b | 10192 | |
284f4730 JB |
10193 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10194 | /* | |
10195 | * On systems which can suspend the current process and return to the original | |
10196 | * shell, this command causes the user to end up back at the shell. | |
10197 | * The "Auto-save" and "Abort" questions are not asked until | |
10198 | * the user elects to return to emacs, at which point he can save the current | |
10199 | * job and either dump core or continue. | |
10200 | */ | |
10201 | sys_suspend (); | |
10202 | #else | |
10203 | #ifdef VMS | |
10204 | if (sys_suspend () == -1) | |
10205 | { | |
10206 | printf ("Not running as a subprocess;\n"); | |
10207 | printf ("you can continue or abort.\n"); | |
10208 | } | |
10209 | #else /* not VMS */ | |
10210 | /* Perhaps should really fork an inferior shell? | |
10211 | But that would not provide any way to get back | |
10212 | to the original shell, ever. */ | |
10213 | printf ("No support for stopping a process on this operating system;\n"); | |
10214 | printf ("you can continue or abort.\n"); | |
10215 | #endif /* not VMS */ | |
10216 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
10217 | #ifdef MSDOS |
10218 | /* We must remain inside the screen area when the internal terminal | |
10219 | is used. Note that [Enter] is not echoed by dos. */ | |
10220 | cursor_to (0, 0); | |
10221 | #endif | |
118d6ca9 RS |
10222 | /* It doesn't work to autosave while GC is in progress; |
10223 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10224 | if (!gc_in_progress) | |
9fd7d808 | 10225 | { |
118d6ca9 RS |
10226 | printf ("Auto-save? (y or n) "); |
10227 | fflush (stdout); | |
10228 | if (((c = getchar ()) & ~040) == 'Y') | |
10229 | { | |
10230 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10231 | #ifdef MSDOS |
118d6ca9 | 10232 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10233 | #else /* not MSDOS */ |
118d6ca9 | 10234 | printf ("Auto-save done\n"); |
80e4aa30 | 10235 | #endif /* not MSDOS */ |
118d6ca9 RS |
10236 | } |
10237 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10238 | } |
c60ee5e7 | 10239 | else |
118d6ca9 RS |
10240 | { |
10241 | /* During GC, it must be safe to reenable quitting again. */ | |
10242 | Vinhibit_quit = Qnil; | |
10243 | #ifdef MSDOS | |
10244 | printf ("\r\n"); | |
10245 | #endif /* not MSDOS */ | |
10246 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10247 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10248 | fflush (stdout); | |
10249 | } | |
10250 | ||
80e4aa30 RS |
10251 | #ifdef MSDOS |
10252 | printf ("\r\nAbort? (y or n) "); | |
10253 | #else /* not MSDOS */ | |
284f4730 JB |
10254 | #ifdef VMS |
10255 | printf ("Abort (and enter debugger)? (y or n) "); | |
10256 | #else /* not VMS */ | |
10257 | printf ("Abort (and dump core)? (y or n) "); | |
10258 | #endif /* not VMS */ | |
80e4aa30 | 10259 | #endif /* not MSDOS */ |
284f4730 JB |
10260 | fflush (stdout); |
10261 | if (((c = getchar ()) & ~040) == 'Y') | |
10262 | abort (); | |
10263 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10264 | #ifdef MSDOS |
10265 | printf ("\r\nContinuing...\r\n"); | |
10266 | #else /* not MSDOS */ | |
284f4730 | 10267 | printf ("Continuing...\n"); |
80e4aa30 | 10268 | #endif /* not MSDOS */ |
284f4730 JB |
10269 | fflush (stdout); |
10270 | init_sys_modes (); | |
31e4e97b | 10271 | sigfree (); |
284f4730 JB |
10272 | } |
10273 | else | |
10274 | { | |
10275 | /* If executing a function that wants to be interrupted out of | |
10276 | and the user has not deferred quitting by binding `inhibit-quit' | |
10277 | then quit right away. */ | |
10278 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10279 | { | |
e39da3d7 RS |
10280 | struct gl_state_s saved; |
10281 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10282 | ||
284f4730 JB |
10283 | immediate_quit = 0; |
10284 | sigfree (); | |
e39da3d7 RS |
10285 | saved = gl_state; |
10286 | GCPRO4 (saved.object, saved.global_code, | |
10287 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10288 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10289 | gl_state = saved; |
10290 | UNGCPRO; | |
284f4730 JB |
10291 | } |
10292 | else | |
10293 | /* Else request quit when it's safe */ | |
10294 | Vquit_flag = Qt; | |
10295 | } | |
10296 | ||
10297 | if (waiting_for_input && !echoing) | |
10298 | quit_throw_to_read_char (); | |
10299 | ||
10300 | errno = old_errno; | |
10301 | } | |
10302 | ||
10303 | /* Handle a C-g by making read_char return C-g. */ | |
10304 | ||
07a59269 | 10305 | void |
284f4730 JB |
10306 | quit_throw_to_read_char () |
10307 | { | |
284f4730 JB |
10308 | sigfree (); |
10309 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10310 | clear_waiting_for_input (); |
284f4730 JB |
10311 | input_pending = 0; |
10312 | ||
24597608 | 10313 | Vunread_command_events = Qnil; |
86e5706b | 10314 | unread_command_char = -1; |
284f4730 | 10315 | |
087feab3 RS |
10316 | #if 0 /* Currently, sit_for is called from read_char without turning |
10317 | off polling. And that can call set_waiting_for_input. | |
10318 | It seems to be harmless. */ | |
e6b01c14 JB |
10319 | #ifdef POLL_FOR_INPUT |
10320 | /* May be > 1 if in recursive minibuffer. */ | |
10321 | if (poll_suppress_count == 0) | |
10322 | abort (); | |
10323 | #endif | |
087feab3 | 10324 | #endif |
4c52b668 | 10325 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10326 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10327 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10328 | 0, 0); |
e6b01c14 | 10329 | |
284f4730 JB |
10330 | _longjmp (getcjmp, 1); |
10331 | } | |
10332 | \f | |
10333 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10334 | doc: /* Set mode of reading keyboard input. |
10335 | First arg INTERRUPT non-nil means use input interrupts; | |
10336 | nil means use CBREAK mode. | |
10337 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10338 | (no effect except in CBREAK mode). | |
10339 | Third arg META t means accept 8-bit input (for a Meta key). | |
10340 | META nil means ignore the top bit, on the assumption it is parity. | |
10341 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10342 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10343 | See also `current-input-mode'. */) | |
10344 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10345 | Lisp_Object interrupt, flow, meta, quit; |
10346 | { | |
10347 | if (!NILP (quit) | |
8c18cbfb | 10348 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10349 | error ("set-input-mode: QUIT must be an ASCII character"); |
10350 | ||
10351 | #ifdef POLL_FOR_INPUT | |
10352 | stop_polling (); | |
10353 | #endif | |
284f4730 | 10354 | |
07de30b9 | 10355 | #ifndef DOS_NT |
2ee250ec | 10356 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10357 | reset_sys_modes (); |
2ee250ec RS |
10358 | #endif |
10359 | ||
284f4730 JB |
10360 | #ifdef SIGIO |
10361 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10362 | if (read_socket_hook) |
9a0f60bb KH |
10363 | { |
10364 | /* When using X, don't give the user a real choice, | |
10365 | because we haven't implemented the mechanisms to support it. */ | |
10366 | #ifdef NO_SOCK_SIGIO | |
10367 | interrupt_input = 0; | |
10368 | #else /* not NO_SOCK_SIGIO */ | |
10369 | interrupt_input = 1; | |
284f4730 | 10370 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10371 | } |
10372 | else | |
284f4730 JB |
10373 | interrupt_input = !NILP (interrupt); |
10374 | #else /* not SIGIO */ | |
10375 | interrupt_input = 0; | |
10376 | #endif /* not SIGIO */ | |
9a0f60bb | 10377 | |
284f4730 JB |
10378 | /* Our VMS input only works by interrupts, as of now. */ |
10379 | #ifdef VMS | |
10380 | interrupt_input = 1; | |
10381 | #endif | |
9a0f60bb | 10382 | |
284f4730 | 10383 | flow_control = !NILP (flow); |
b04904fb RS |
10384 | if (NILP (meta)) |
10385 | meta_key = 0; | |
10386 | else if (EQ (meta, Qt)) | |
10387 | meta_key = 1; | |
10388 | else | |
10389 | meta_key = 2; | |
284f4730 JB |
10390 | if (!NILP (quit)) |
10391 | /* Don't let this value be out of range. */ | |
10392 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10393 | ||
07de30b9 | 10394 | #ifndef DOS_NT |
284f4730 | 10395 | init_sys_modes (); |
2ee250ec | 10396 | #endif |
34f04431 RS |
10397 | |
10398 | #ifdef POLL_FOR_INPUT | |
10399 | poll_suppress_count = 1; | |
10400 | start_polling (); | |
10401 | #endif | |
284f4730 JB |
10402 | return Qnil; |
10403 | } | |
80645119 JB |
10404 | |
10405 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10406 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10407 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10408 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10409 | nil, Emacs is using CBREAK mode. | |
10410 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10411 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10412 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10413 | META nil means ignoring the top bit, on the assumption it is parity. | |
10414 | META is neither t nor nil if accepting 8-bit input and using | |
10415 | all 8 bits as the character code. | |
10416 | QUIT is the character Emacs currently uses to quit. | |
10417 | The elements of this list correspond to the arguments of | |
10418 | `set-input-mode'. */) | |
10419 | () | |
80645119 JB |
10420 | { |
10421 | Lisp_Object val[4]; | |
10422 | ||
10423 | val[0] = interrupt_input ? Qt : Qnil; | |
10424 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10425 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10426 | XSETFASTINT (val[3], quit_char); |
80645119 | 10427 | |
bf673a7a | 10428 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10429 | } |
10430 | ||
284f4730 | 10431 | \f |
6c6083a9 | 10432 | /* |
c5fdd383 | 10433 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10434 | */ |
10435 | void | |
c5fdd383 KH |
10436 | init_kboard (kb) |
10437 | KBOARD *kb; | |
6c6083a9 | 10438 | { |
217258d5 | 10439 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10440 | kb->Vlast_command = Qnil; |
75045dcb | 10441 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10442 | kb->Vprefix_arg = Qnil; |
75045dcb | 10443 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10444 | kb->kbd_queue = Qnil; |
10445 | kb->kbd_queue_has_data = 0; | |
10446 | kb->immediate_echo = 0; | |
678e9d18 | 10447 | kb->echo_string = Qnil; |
c5fdd383 KH |
10448 | kb->echo_after_prompt = -1; |
10449 | kb->kbd_macro_buffer = 0; | |
10450 | kb->kbd_macro_bufsize = 0; | |
10451 | kb->defining_kbd_macro = Qnil; | |
10452 | kb->Vlast_kbd_macro = Qnil; | |
10453 | kb->reference_count = 0; | |
7c97ffdc | 10454 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10455 | kb->system_key_syms = Qnil; |
9ba47203 | 10456 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10457 | } |
10458 | ||
10459 | /* | |
c5fdd383 | 10460 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10461 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10462 | * it a second time. |
10463 | */ | |
e50b8090 | 10464 | static void |
c5fdd383 KH |
10465 | wipe_kboard (kb) |
10466 | KBOARD *kb; | |
6c6083a9 | 10467 | { |
c5fdd383 KH |
10468 | if (kb->kbd_macro_buffer) |
10469 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10470 | } |
10471 | ||
e50b8090 | 10472 | #ifdef MULTI_KBOARD |
a122a38e GM |
10473 | |
10474 | /* Free KB and memory referenced from it. */ | |
10475 | ||
e50b8090 KH |
10476 | void |
10477 | delete_kboard (kb) | |
a122a38e | 10478 | KBOARD *kb; |
e50b8090 KH |
10479 | { |
10480 | KBOARD **kbp; | |
c60ee5e7 | 10481 | |
e50b8090 KH |
10482 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10483 | if (*kbp == NULL) | |
10484 | abort (); | |
10485 | *kbp = kb->next_kboard; | |
a122a38e GM |
10486 | |
10487 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10488 | if (kb == current_kboard |
10489 | && FRAMEP (selected_frame) | |
10490 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10491 | { |
18f534df | 10492 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10493 | if (current_kboard == kb) |
10494 | abort (); | |
10495 | } | |
c60ee5e7 | 10496 | |
e50b8090 KH |
10497 | wipe_kboard (kb); |
10498 | xfree (kb); | |
10499 | } | |
a122a38e GM |
10500 | |
10501 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10502 | |
dfcf069d | 10503 | void |
284f4730 JB |
10504 | init_keyboard () |
10505 | { | |
284f4730 JB |
10506 | /* This is correct before outermost invocation of the editor loop */ |
10507 | command_loop_level = -1; | |
10508 | immediate_quit = 0; | |
10509 | quit_char = Ctl ('g'); | |
24597608 | 10510 | Vunread_command_events = Qnil; |
86e5706b | 10511 | unread_command_char = -1; |
87dd9b9b | 10512 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10513 | total_keys = 0; |
9deb415a | 10514 | recent_keys_index = 0; |
beecf6a1 KH |
10515 | kbd_fetch_ptr = kbd_buffer; |
10516 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10517 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10518 | #ifdef HAVE_MOUSE |
a9d77f1f | 10519 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10520 | #endif |
284f4730 JB |
10521 | input_pending = 0; |
10522 | ||
4c52b668 KH |
10523 | /* This means that command_loop_1 won't try to select anything the first |
10524 | time through. */ | |
10525 | internal_last_event_frame = Qnil; | |
10526 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10527 | |
c5fdd383 | 10528 | #ifdef MULTI_KBOARD |
aaca43a1 | 10529 | current_kboard = initial_kboard; |
6c6083a9 | 10530 | #endif |
aaca43a1 | 10531 | wipe_kboard (current_kboard); |
c5fdd383 | 10532 | init_kboard (current_kboard); |
07d2b8de | 10533 | |
7a80a6f6 | 10534 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10535 | { |
10536 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10537 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10538 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10539 | SIGQUIT and we can't tell which one it will give us. */ | |
10540 | signal (SIGQUIT, interrupt_signal); | |
10541 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10542 | } |
284f4730 JB |
10543 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10544 | #ifdef SIGIO | |
7a80a6f6 RS |
10545 | if (!noninteractive) |
10546 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10547 | #endif /* SIGIO */ |
284f4730 JB |
10548 | |
10549 | /* Use interrupt input by default, if it works and noninterrupt input | |
10550 | has deficiencies. */ | |
10551 | ||
10552 | #ifdef INTERRUPT_INPUT | |
10553 | interrupt_input = 1; | |
10554 | #else | |
10555 | interrupt_input = 0; | |
10556 | #endif | |
10557 | ||
10558 | /* Our VMS input only works by interrupts, as of now. */ | |
10559 | #ifdef VMS | |
10560 | interrupt_input = 1; | |
10561 | #endif | |
10562 | ||
10563 | sigfree (); | |
10564 | dribble = 0; | |
10565 | ||
10566 | if (keyboard_init_hook) | |
10567 | (*keyboard_init_hook) (); | |
10568 | ||
10569 | #ifdef POLL_FOR_INPUT | |
10570 | poll_suppress_count = 1; | |
10571 | start_polling (); | |
10572 | #endif | |
365fa1b3 AC |
10573 | |
10574 | #ifdef MAC_OSX | |
10575 | /* At least provide an escape route since C-g doesn't work. */ | |
10576 | signal (SIGINT, interrupt_signal); | |
10577 | #endif | |
284f4730 JB |
10578 | } |
10579 | ||
df0f2ba1 | 10580 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10581 | event header symbols and put properties on them. */ |
10582 | struct event_head { | |
10583 | Lisp_Object *var; | |
10584 | char *name; | |
10585 | Lisp_Object *kind; | |
10586 | }; | |
10587 | ||
10588 | struct event_head head_table[] = { | |
7406e988 PJ |
10589 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10590 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10591 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10592 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10593 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 10594 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
10595 | /* `select-window' should be handled just like `switch-frame' |
10596 | in read_key_sequence. */ | |
10597 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
10598 | }; |
10599 | ||
dfcf069d | 10600 | void |
284f4730 JB |
10601 | syms_of_keyboard () |
10602 | { | |
f0c1cc56 GM |
10603 | Vpre_help_message = Qnil; |
10604 | staticpro (&Vpre_help_message); | |
c60ee5e7 | 10605 | |
8e1e4240 GM |
10606 | Vlispy_mouse_stem = build_string ("mouse"); |
10607 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10608 | |
9ea173e8 | 10609 | /* Tool-bars. */ |
7ee32cda GM |
10610 | QCimage = intern (":image"); |
10611 | staticpro (&QCimage); | |
10612 | ||
10613 | staticpro (&Qhelp_echo); | |
10614 | Qhelp_echo = intern ("help-echo"); | |
10615 | ||
e8886a1d RS |
10616 | staticpro (&item_properties); |
10617 | item_properties = Qnil; | |
10618 | ||
9ea173e8 GM |
10619 | staticpro (&tool_bar_item_properties); |
10620 | tool_bar_item_properties = Qnil; | |
10621 | staticpro (&tool_bar_items_vector); | |
10622 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10623 | |
d5eecefb RS |
10624 | staticpro (&real_this_command); |
10625 | real_this_command = Qnil; | |
10626 | ||
d925fb39 RS |
10627 | Qtimer_event_handler = intern ("timer-event-handler"); |
10628 | staticpro (&Qtimer_event_handler); | |
10629 | ||
2e894dab RS |
10630 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10631 | staticpro (&Qdisabled_command_hook); | |
10632 | ||
284f4730 JB |
10633 | Qself_insert_command = intern ("self-insert-command"); |
10634 | staticpro (&Qself_insert_command); | |
10635 | ||
10636 | Qforward_char = intern ("forward-char"); | |
10637 | staticpro (&Qforward_char); | |
10638 | ||
10639 | Qbackward_char = intern ("backward-char"); | |
10640 | staticpro (&Qbackward_char); | |
10641 | ||
10642 | Qdisabled = intern ("disabled"); | |
10643 | staticpro (&Qdisabled); | |
10644 | ||
e58aa385 RS |
10645 | Qundefined = intern ("undefined"); |
10646 | staticpro (&Qundefined); | |
10647 | ||
86e5706b RS |
10648 | Qpre_command_hook = intern ("pre-command-hook"); |
10649 | staticpro (&Qpre_command_hook); | |
10650 | ||
10651 | Qpost_command_hook = intern ("post-command-hook"); | |
10652 | staticpro (&Qpost_command_hook); | |
10653 | ||
59aadc81 RS |
10654 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10655 | staticpro (&Qpost_command_idle_hook); | |
10656 | ||
3ef14e46 RS |
10657 | Qdeferred_action_function = intern ("deferred-action-function"); |
10658 | staticpro (&Qdeferred_action_function); | |
10659 | ||
40932d1a RS |
10660 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10661 | staticpro (&Qcommand_hook_internal); | |
10662 | ||
284f4730 JB |
10663 | Qfunction_key = intern ("function-key"); |
10664 | staticpro (&Qfunction_key); | |
13b5e56c | 10665 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10666 | staticpro (&Qmouse_click); |
742fbed7 | 10667 | #ifdef WINDOWSNT |
1161d367 GV |
10668 | Qlanguage_change = intern ("language-change"); |
10669 | staticpro (&Qlanguage_change); | |
07de30b9 | 10670 | #endif |
a24dc617 RS |
10671 | Qdrag_n_drop = intern ("drag-n-drop"); |
10672 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10673 | |
4ebc27a5 JD |
10674 | Qsave_session = intern ("save-session"); |
10675 | staticpro(&Qsave_session); | |
c60ee5e7 | 10676 | |
5bf68f6e AS |
10677 | Qusr1_signal = intern ("usr1-signal"); |
10678 | staticpro (&Qusr1_signal); | |
10679 | Qusr2_signal = intern ("usr2-signal"); | |
10680 | staticpro (&Qusr2_signal); | |
10681 | ||
598a9fa7 JB |
10682 | Qmenu_enable = intern ("menu-enable"); |
10683 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10684 | Qmenu_alias = intern ("menu-alias"); |
10685 | staticpro (&Qmenu_alias); | |
10686 | QCenable = intern (":enable"); | |
10687 | staticpro (&QCenable); | |
10688 | QCvisible = intern (":visible"); | |
10689 | staticpro (&QCvisible); | |
7ee32cda GM |
10690 | QChelp = intern (":help"); |
10691 | staticpro (&QChelp); | |
e8886a1d RS |
10692 | QCfilter = intern (":filter"); |
10693 | staticpro (&QCfilter); | |
10694 | QCbutton = intern (":button"); | |
10695 | staticpro (&QCbutton); | |
74c1de23 RS |
10696 | QCkeys = intern (":keys"); |
10697 | staticpro (&QCkeys); | |
10698 | QCkey_sequence = intern (":key-sequence"); | |
10699 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10700 | QCtoggle = intern (":toggle"); |
10701 | staticpro (&QCtoggle); | |
10702 | QCradio = intern (":radio"); | |
10703 | staticpro (&QCradio); | |
598a9fa7 | 10704 | |
284f4730 JB |
10705 | Qmode_line = intern ("mode-line"); |
10706 | staticpro (&Qmode_line); | |
e5d77022 JB |
10707 | Qvertical_line = intern ("vertical-line"); |
10708 | staticpro (&Qvertical_line); | |
3c370943 JB |
10709 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10710 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10711 | Qmenu_bar = intern ("menu-bar"); |
10712 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10713 | |
10714 | Qabove_handle = intern ("above-handle"); | |
10715 | staticpro (&Qabove_handle); | |
10716 | Qhandle = intern ("handle"); | |
10717 | staticpro (&Qhandle); | |
10718 | Qbelow_handle = intern ("below-handle"); | |
10719 | staticpro (&Qbelow_handle); | |
db08707d RS |
10720 | Qup = intern ("up"); |
10721 | staticpro (&Qup); | |
10722 | Qdown = intern ("down"); | |
10723 | staticpro (&Qdown); | |
7ee32cda GM |
10724 | Qtop = intern ("top"); |
10725 | staticpro (&Qtop); | |
10726 | Qbottom = intern ("bottom"); | |
10727 | staticpro (&Qbottom); | |
10728 | Qend_scroll = intern ("end-scroll"); | |
10729 | staticpro (&Qend_scroll); | |
eef28553 SM |
10730 | Qratio = intern ("ratio"); |
10731 | staticpro (&Qratio); | |
284f4730 | 10732 | |
cd21b839 | 10733 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10734 | staticpro (&Qevent_kind); |
88cb0656 JB |
10735 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10736 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10737 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10738 | staticpro (&Qevent_symbol_element_mask); | |
10739 | Qmodifier_cache = intern ("modifier-cache"); | |
10740 | staticpro (&Qmodifier_cache); | |
284f4730 | 10741 | |
48e416d4 RS |
10742 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10743 | staticpro (&Qrecompute_lucid_menubar); | |
10744 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10745 | staticpro (&Qactivate_menubar_hook); | |
10746 | ||
f4eef8b4 RS |
10747 | Qpolling_period = intern ("polling-period"); |
10748 | staticpro (&Qpolling_period); | |
10749 | ||
7d18f9ae RS |
10750 | Qinput_method_function = intern ("input-method-function"); |
10751 | staticpro (&Qinput_method_function); | |
10752 | ||
d5eecefb RS |
10753 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10754 | staticpro (&Qinput_method_exit_on_first_char); | |
10755 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10756 | staticpro (&Qinput_method_use_echo_area); | |
10757 | ||
10758 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10759 | Fset (Qinput_method_use_echo_area, Qnil); | |
10760 | ||
e18dfbf4 KR |
10761 | last_point_position_buffer = Qnil; |
10762 | ||
284f4730 JB |
10763 | { |
10764 | struct event_head *p; | |
10765 | ||
10766 | for (p = head_table; | |
10767 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10768 | p++) | |
10769 | { | |
10770 | *p->var = intern (p->name); | |
10771 | staticpro (p->var); | |
10772 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10773 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10774 | } |
10775 | } | |
10776 | ||
8e1e4240 | 10777 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10778 | staticpro (&button_down_location); |
8e1e4240 GM |
10779 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10780 | staticpro (&mouse_syms); | |
8006e4bb JR |
10781 | wheel_syms = Fmake_vector (make_number (2), Qnil); |
10782 | staticpro (&wheel_syms); | |
88cb0656 JB |
10783 | |
10784 | { | |
10785 | int i; | |
10786 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10787 | ||
10788 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10789 | for (i = 0; i < len; i++) | |
86e5706b RS |
10790 | if (modifier_names[i]) |
10791 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10792 | staticpro (&modifier_symbols); |
10793 | } | |
10794 | ||
9deb415a JB |
10795 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10796 | staticpro (&recent_keys); | |
10797 | ||
6569cc8d | 10798 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10799 | staticpro (&this_command_keys); |
6569cc8d | 10800 | |
7d18f9ae RS |
10801 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10802 | staticpro (&raw_keybuf); | |
10803 | ||
03b4122a BF |
10804 | Qextended_command_history = intern ("extended-command-history"); |
10805 | Fset (Qextended_command_history, Qnil); | |
10806 | staticpro (&Qextended_command_history); | |
10807 | ||
da8f7368 GM |
10808 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10809 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10810 | |
24597608 RS |
10811 | accent_key_syms = Qnil; |
10812 | staticpro (&accent_key_syms); | |
10813 | ||
284f4730 JB |
10814 | func_key_syms = Qnil; |
10815 | staticpro (&func_key_syms); | |
10816 | ||
a24dc617 RS |
10817 | drag_n_drop_syms = Qnil; |
10818 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 10819 | |
cd21b839 JB |
10820 | unread_switch_frame = Qnil; |
10821 | staticpro (&unread_switch_frame); | |
10822 | ||
fe412364 EN |
10823 | internal_last_event_frame = Qnil; |
10824 | staticpro (&internal_last_event_frame); | |
10825 | ||
10826 | read_key_sequence_cmd = Qnil; | |
10827 | staticpro (&read_key_sequence_cmd); | |
10828 | ||
759860a6 RS |
10829 | menu_bar_one_keymap_changed_items = Qnil; |
10830 | staticpro (&menu_bar_one_keymap_changed_items); | |
10831 | ||
a1706c30 | 10832 | defsubr (&Sevent_convert_list); |
284f4730 | 10833 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10834 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10835 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10836 | #ifdef HAVE_MOUSE |
284f4730 | 10837 | defsubr (&Strack_mouse); |
2eb6bfbe | 10838 | #endif |
284f4730 JB |
10839 | defsubr (&Sinput_pending_p); |
10840 | defsubr (&Scommand_execute); | |
10841 | defsubr (&Srecent_keys); | |
10842 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10843 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10844 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10845 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10846 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10847 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10848 | defsubr (&Ssuspend_emacs); |
10849 | defsubr (&Sabort_recursive_edit); | |
10850 | defsubr (&Sexit_recursive_edit); | |
10851 | defsubr (&Srecursion_depth); | |
10852 | defsubr (&Stop_level); | |
10853 | defsubr (&Sdiscard_input); | |
10854 | defsubr (&Sopen_dribble_file); | |
10855 | defsubr (&Sset_input_mode); | |
80645119 | 10856 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10857 | defsubr (&Sexecute_extended_command); |
10858 | ||
284f4730 | 10859 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 10860 | doc: /* Last input event that was part of a command. */); |
86e5706b | 10861 | |
186cf719 | 10862 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 10863 | doc: /* Last input event that was part of a command. */); |
284f4730 | 10864 | |
7d6de002 | 10865 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
10866 | doc: /* Last input event in a command, except for mouse menu events. |
10867 | Mouse menus give back keys that don't look like mouse events; | |
10868 | this variable holds the actual mouse event that led to the menu, | |
10869 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 10870 | |
284f4730 | 10871 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 10872 | doc: /* Last input event. */); |
86e5706b | 10873 | |
186cf719 | 10874 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 10875 | doc: /* Last input event. */); |
284f4730 | 10876 | |
24597608 | 10877 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
10878 | doc: /* List of events to be read as the command input. |
10879 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 10880 | Vunread_command_events = Qnil; |
284f4730 | 10881 | |
86e5706b | 10882 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 10883 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 10884 | |
7d18f9ae | 10885 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
10886 | doc: /* List of events to be processed as input by input methods. |
10887 | These events are processed after `unread-command-events', but | |
10888 | before actual keyboard input. */); | |
7d18f9ae RS |
10889 | Vunread_post_input_method_events = Qnil; |
10890 | ||
10891 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
10892 | doc: /* List of events to be processed as input by input methods. |
10893 | These events are processed after `unread-command-events', but | |
10894 | before actual keyboard input. */); | |
7d18f9ae RS |
10895 | Vunread_input_method_events = Qnil; |
10896 | ||
284f4730 | 10897 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
10898 | doc: /* Meta-prefix character code. |
10899 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 10900 | XSETINT (meta_prefix_char, 033); |
284f4730 | 10901 | |
6c7178b9 | 10902 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
10903 | doc: /* The last command executed. |
10904 | Normally a symbol with a function definition, but can be whatever was found | |
10905 | in the keymap, or whatever the variable `this-command' was set to by that | |
10906 | command. | |
10907 | ||
10908 | The value `mode-exit' is special; it means that the previous command | |
10909 | read an event that told it to exit, and it did so and unread that event. | |
10910 | In other words, the present command is the event that made the previous | |
10911 | command exit. | |
10912 | ||
10913 | The value `kill-region' is special; it means that the previous command | |
10914 | was a kill command. */); | |
284f4730 | 10915 | |
75045dcb | 10916 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 10917 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 10918 | |
d5eecefb | 10919 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
10920 | doc: /* The command now being executed. |
10921 | The command can set this variable; whatever is put here | |
10922 | will be in `last-command' during the following command. */); | |
d5eecefb | 10923 | Vthis_command = Qnil; |
284f4730 | 10924 | |
8b9940e6 | 10925 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
10926 | doc: /* The command bound to the current key sequence before remapping. |
10927 | It equals `this-command' if the original command was not remapped through | |
10928 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 10929 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
10930 | Vthis_original_command = Qnil; |
10931 | ||
284f4730 | 10932 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
10933 | doc: /* *Number of input events between auto-saves. |
10934 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
10935 | auto_save_interval = 300; |
10936 | ||
10937 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
10938 | doc: /* *Number of seconds idle time before auto-save. |
10939 | Zero or nil means disable auto-saving due to idleness. | |
10940 | After auto-saving due to this many seconds of idle time, | |
10941 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 10942 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 10943 | |
39aab679 | 10944 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
10945 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
10946 | The value may be integer or floating point. */); | |
39aab679 | 10947 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
10948 | |
10949 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
10950 | doc: /* *Interval between polling for input during Lisp execution. |
10951 | The reason for polling is to make C-g work to stop a running program. | |
10952 | Polling is needed only when using X windows and SIGIO does not work. | |
10953 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 10954 | polling_period = 2; |
df0f2ba1 | 10955 | |
564dc952 | 10956 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
10957 | doc: /* *Maximum time between mouse clicks to make a double-click. |
10958 | Measured in milliseconds. nil means disable double-click recognition; | |
10959 | t means double-clicks have no time limit and are detected | |
10960 | by position only. */); | |
aab06933 | 10961 | Vdouble_click_time = make_number (500); |
fbcd35bd | 10962 | |
222d557c | 10963 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
10964 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
10965 | On window-system frames, value is the number of pixels the mouse may have | |
10966 | moved horizontally or vertically between two clicks to make a double-click. | |
10967 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
10968 | instead of pixels. |
10969 | ||
10970 | This variable is also the threshold for motion of the mouse | |
10971 | to count as a drag. */); | |
222d557c | 10972 | double_click_fuzz = 3; |
c60ee5e7 | 10973 | |
03361bcc | 10974 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 10975 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
10976 | inhibit_local_menu_bar_menus = 0; |
10977 | ||
284f4730 | 10978 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
10979 | doc: /* Number of complete key sequences read as input so far. |
10980 | This includes key sequences read from keyboard macros. | |
10981 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
10982 | num_input_keys = 0; |
10983 | ||
c43b1734 | 10984 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
10985 | doc: /* Number of input events read from the keyboard so far. |
10986 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 10987 | num_nonmacro_input_events = 0; |
fa90970d | 10988 | |
4c52b668 | 10989 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
10990 | doc: /* The frame in which the most recently read event occurred. |
10991 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
10992 | Vlast_event_frame = Qnil; |
10993 | ||
fa90970d RS |
10994 | /* This variable is set up in sysdep.c. */ |
10995 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 10996 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 10997 | |
7e85b935 | 10998 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
10999 | doc: /* Character to recognize as meaning Help. |
11000 | When it is read, do `(eval help-form)', and display result if it's a string. | |
11001 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 11002 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 11003 | |
ecb7cb34 | 11004 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
11005 | doc: /* List of input events to recognize as meaning Help. |
11006 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
11007 | Vhelp_event_list = Qnil; |
11008 | ||
284f4730 | 11009 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
11010 | doc: /* Form to execute when character `help-char' is read. |
11011 | If the form returns a string, that string is displayed. | |
11012 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
11013 | Vhelp_form = Qnil; |
11014 | ||
7e85b935 | 11015 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
11016 | doc: /* Command to run when `help-char' character follows a prefix key. |
11017 | This command is used only when there is no actual binding | |
11018 | for that character after that prefix key. */); | |
7e85b935 RS |
11019 | Vprefix_help_command = Qnil; |
11020 | ||
284f4730 | 11021 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
11022 | doc: /* Form to evaluate when Emacs starts up. |
11023 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
11024 | Vtop_level = Qnil; |
11025 | ||
11026 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 PJ |
11027 | doc: /* Translate table for keyboard input, or nil. |
11028 | Each character is looked up in this string and the contents used instead. | |
11029 | The value may be a string, a vector, or a char-table. | |
11030 | If it is a string or vector of length N, | |
11031 | character codes N and up are untranslated. | |
a0acc6c7 DL |
11032 | In a vector or a char-table, an element which is nil means "no translation". |
11033 | ||
11034 | This is applied to the characters supplied to input methods, not their | |
11035 | output. See also `translation-table-for-input'. */); | |
284f4730 JB |
11036 | Vkeyboard_translate_table = Qnil; |
11037 | ||
8026024c | 11038 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
11039 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
11040 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
11041 | cannot_suspend = 0; |
11042 | ||
284f4730 | 11043 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
11044 | doc: /* Non-nil means prompt with menus when appropriate. |
11045 | This is done when reading from a keymap that has a prompt string, | |
11046 | for elements that have prompt strings. | |
11047 | The menu is displayed on the screen | |
11048 | if X menus were enabled at configuration | |
11049 | time and the previous event was a mouse click prefix key. | |
11050 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
11051 | menu_prompting = 1; |
11052 | ||
11053 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
11054 | doc: /* Character to see next line of menu prompt. |
11055 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 11056 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
11057 | |
11058 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
11059 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
11060 | Emacs applies the modifiers of the character stored here to each keyboard | |
11061 | character it reads. For example, after evaluating the expression | |
11062 | (setq extra-keyboard-modifiers ?\\C-x) | |
11063 | all input characters will have the control modifier applied to them. | |
11064 | ||
11065 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
11066 | not count as a control character; rather, it counts as a character | |
11067 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
11068 | cancels any modification. */); | |
9fa4395d | 11069 | extra_keyboard_modifiers = 0; |
86e5706b RS |
11070 | |
11071 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
11072 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
11073 | The command loop sets this to nil before each command, | |
11074 | and tests the value when the command returns. | |
11075 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
11076 | Vdeactivate_mark = Qnil; |
11077 | ||
b0f2a7bf | 11078 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 11079 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
11080 | Vcommand_hook_internal = Qnil; |
11081 | ||
86e5706b | 11082 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
11083 | doc: /* Normal hook run before each command is executed. |
11084 | If an unhandled error happens in running this hook, | |
11085 | the hook value is set to nil, since otherwise the error | |
11086 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
11087 | Vpre_command_hook = Qnil; |
11088 | ||
11089 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
11090 | doc: /* Normal hook run after each command is executed. |
11091 | If an unhandled error happens in running this hook, | |
11092 | the hook value is set to nil, since otherwise the error | |
11093 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 11094 | Vpost_command_hook = Qnil; |
48e416d4 | 11095 | |
59aadc81 | 11096 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
4707d2d0 | 11097 | doc: /* Normal hook run after each command is executed, if idle. |
cf9b6656 | 11098 | Errors running the hook are caught and ignored. */); |
59aadc81 RS |
11099 | Vpost_command_idle_hook = Qnil; |
11100 | ||
11101 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
4707d2d0 PJ |
11102 | doc: /* Delay time before running `post-command-idle-hook'. |
11103 | This is measured in microseconds. */); | |
59aadc81 RS |
11104 | post_command_idle_delay = 100000; |
11105 | ||
cf24f894 RS |
11106 | #if 0 |
11107 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 11108 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
11109 | #endif |
11110 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
11111 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); | |
cdb9d665 | 11112 | |
48e416d4 | 11113 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 11114 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 11115 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 11116 | |
9f9c0e27 | 11117 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
11118 | doc: /* List of menu bar items to move to the end of the menu bar. |
11119 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 11120 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 11121 | |
217258d5 KH |
11122 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
11123 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
11124 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
11125 | If this variable is non-nil, it is used as a keymap instead of the | |
11126 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
11127 | This variable is intended to let commands such as `universal-argument' | |
11128 | set up a different keymap for reading the next command. */); | |
217258d5 | 11129 | |
9dd3131c | 11130 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 PJ |
11131 | doc: /* Keymap that overrides all other local keymaps. |
11132 | If this variable is non-nil, it is used as a keymap instead of the | |
11133 | buffer's local map, and the minor mode keymaps and text property keymaps. */); | |
9dd3131c RS |
11134 | Voverriding_local_map = Qnil; |
11135 | ||
d0a49716 | 11136 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11137 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11138 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11139 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11140 | Voverriding_local_map_menu_flag = Qnil; |
11141 | ||
7f07d5ca | 11142 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 11143 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
11144 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
11145 | ||
71edead1 | 11146 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 11147 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11148 | |
7c97ffdc | 11149 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11150 | doc: /* Alist of system-specific X windows key symbols. |
11151 | Each element should have the form (N . SYMBOL) where N is the | |
11152 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
11153 | and SYMBOL is its name. */); | |
8a792f3a RS |
11154 | |
11155 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
11156 | doc: /* List of deferred actions to be performed at a later time. |
11157 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
11158 | Vdeferred_action_list = Qnil; |
11159 | ||
11160 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
11161 | doc: /* Function to call to handle deferred actions, after each command. |
11162 | This function is called with no arguments after each command | |
11163 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 11164 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
11165 | |
11166 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
11167 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
11168 | The value can be a length of time to show the message for. | |
11169 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 11170 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 11171 | |
c04cbc3b | 11172 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 11173 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 11174 | Vtimer_list = Qnil; |
d9d4c147 KH |
11175 | |
11176 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 11177 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 11178 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
11179 | |
11180 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
11181 | doc: /* If non-nil, the function that implements the current input method. |
11182 | It's called with one argument, a printing character that was just read. | |
11183 | \(That means a character with code 040...0176.) | |
11184 | Typically this function uses `read-event' to read additional events. | |
11185 | When it does so, it should first bind `input-method-function' to nil | |
11186 | so it will not be called recursively. | |
11187 | ||
11188 | The function should return a list of zero or more events | |
11189 | to be used as input. If it wants to put back some events | |
11190 | to be reconsidered, separately, by the input method, | |
11191 | it can add them to the beginning of `unread-command-events'. | |
11192 | ||
11193 | The input method function can find in `input-method-previous-method' | |
11194 | the previous echo area message. | |
11195 | ||
11196 | The input method function should refer to the variables | |
11197 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
11198 | for guidance on what to do. */); | |
7d18f9ae | 11199 | Vinput_method_function = Qnil; |
d5eecefb RS |
11200 | |
11201 | DEFVAR_LISP ("input-method-previous-message", | |
11202 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
11203 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
11204 | This variable exists because `read-event' clears the echo area | |
11205 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 11206 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
11207 | |
11208 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
11209 | doc: /* If non-nil, the function that implements the display of help. |
11210 | It's called with one argument, the help string to display. */); | |
7ee32cda | 11211 | Vshow_help_function = Qnil; |
adf5cb9c KH |
11212 | |
11213 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
11214 | doc: /* If non-nil, suppress point adjustment after executing a command. |
11215 | ||
11216 | After a command is executed, if point is moved into a region that has | |
11217 | special properties (e.g. composition, display), we adjust point to | |
11218 | the boundary of the region. But, several special commands sets this | |
11219 | variable to non-nil, then we suppress the point adjustment. | |
11220 | ||
11221 | This variable is set to nil before reading a command, and is checked | |
11222 | just after executing the command. */); | |
adf5cb9c KH |
11223 | Vdisable_point_adjustment = Qnil; |
11224 | ||
11225 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11226 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11227 | doc: /* *If non-nil, always suppress point adjustment. |
11228 | ||
11229 | The default value is nil, in which case, point adjustment are | |
11230 | suppressed only after special commands that set | |
11231 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11232 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11233 | |
a1d34b1e | 11234 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
11235 | doc: /* Non-nil means updating menu bindings is allowed. |
11236 | A value of nil means menu bindings should not be updated. | |
11237 | Used during Emacs' startup. */); | |
3626fb1a | 11238 | update_menu_bindings = 1; |
00392ce6 MB |
11239 | |
11240 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
11241 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11242 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11243 | Vminibuffer_message_timeout = make_number (2); |
284f4730 JB |
11244 | } |
11245 | ||
dfcf069d | 11246 | void |
284f4730 JB |
11247 | keys_of_keyboard () |
11248 | { | |
11249 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11250 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11251 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11252 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11253 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11254 | |
11255 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11256 | "handle-delete-frame"); | |
11257 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
11258 | "ignore-event"); | |
11259 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
11260 | "ignore-event"); | |
a4e19f6e SM |
11261 | /* Handling it at such a low-level causes read_key_sequence to get |
11262 | * confused because it doesn't realize that the current_buffer was | |
11263 | * changed by read_char. | |
11264 | * | |
11265 | * initial_define_lispy_key (Vspecial_event_map, "select-window", | |
11266 | * "handle-select-window"); */ | |
4ebc27a5 JD |
11267 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11268 | "handle-save-session"); | |
284f4730 | 11269 | } |
1269a761 SM |
11270 | |
11271 | /* Mark the pointers in the kboard objects. | |
11272 | Called by the Fgarbage_collector. */ | |
11273 | void | |
11274 | mark_kboards () | |
11275 | { | |
11276 | KBOARD *kb; | |
11277 | Lisp_Object *p; | |
11278 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
11279 | { | |
11280 | if (kb->kbd_macro_buffer) | |
11281 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
11282 | mark_object (*p); |
11283 | mark_object (kb->Voverriding_terminal_local_map); | |
11284 | mark_object (kb->Vlast_command); | |
11285 | mark_object (kb->Vreal_last_command); | |
11286 | mark_object (kb->Vprefix_arg); | |
11287 | mark_object (kb->Vlast_prefix_arg); | |
11288 | mark_object (kb->kbd_queue); | |
11289 | mark_object (kb->defining_kbd_macro); | |
11290 | mark_object (kb->Vlast_kbd_macro); | |
11291 | mark_object (kb->Vsystem_key_alist); | |
11292 | mark_object (kb->system_key_syms); | |
11293 | mark_object (kb->Vdefault_minibuffer_frame); | |
11294 | mark_object (kb->echo_string); | |
1269a761 SM |
11295 | } |
11296 | { | |
11297 | struct input_event *event; | |
11298 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
11299 | { | |
11300 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
11301 | event = kbd_buffer; | |
3ebb8729 SM |
11302 | mark_object (event->x); |
11303 | mark_object (event->y); | |
11304 | mark_object (event->frame_or_window); | |
11305 | mark_object (event->arg); | |
1269a761 SM |
11306 | } |
11307 | } | |
11308 | } | |
ab5796a9 MB |
11309 | |
11310 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
11311 | (do not change this comment) */ |