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" | |
8b461910 | 35 | #include "character.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; |
5ec75a55 | 589 | |
f4255cd1 JB |
590 | Lisp_Object recursive_edit_unwind (), command_loop (); |
591 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 592 | Lisp_Object Qextended_command_history; |
c04cbc3b | 593 | EMACS_TIME timer_check (); |
284f4730 | 594 | |
a0acc6c7 | 595 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 596 | |
2c834fb3 KH |
597 | extern char *x_get_keysym_name (); |
598 | ||
8eb4d8ef | 599 | static void record_menu_key (); |
22b94eeb | 600 | static int echo_length (); |
8eb4d8ef | 601 | |
f4eef8b4 RS |
602 | Lisp_Object Qpolling_period; |
603 | ||
d9d4c147 | 604 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
605 | Lisp_Object Vtimer_list; |
606 | ||
d9d4c147 KH |
607 | /* List of idle time timers. Appears in order of next scheduled event. */ |
608 | Lisp_Object Vtimer_idle_list; | |
609 | ||
87dd9b9b RS |
610 | /* Incremented whenever a timer is run. */ |
611 | int timers_run; | |
612 | ||
a9f16aa9 KH |
613 | extern Lisp_Object Vprint_level, Vprint_length; |
614 | ||
ffd56f97 JB |
615 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
616 | happens. */ | |
617 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
618 | |
619 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
620 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
621 | int interrupt_input; | |
622 | ||
623 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
624 | int interrupts_deferred; | |
625 | ||
87dd9b9b | 626 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
627 | int flow_control; |
628 | ||
284f4730 JB |
629 | /* Allow m- file to inhibit use of FIONREAD. */ |
630 | #ifdef BROKEN_FIONREAD | |
631 | #undef FIONREAD | |
632 | #endif | |
633 | ||
634 | /* We are unable to use interrupts if FIONREAD is not available, | |
635 | so flush SIGIO so we won't try. */ | |
636 | #ifndef FIONREAD | |
637 | #ifdef SIGIO | |
638 | #undef SIGIO | |
639 | #endif | |
640 | #endif | |
641 | ||
e98a93eb | 642 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 643 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 644 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
645 | #define POLL_FOR_INPUT |
646 | #endif | |
adf5cb9c KH |
647 | |
648 | /* After a command is executed, if point is moved into a region that | |
649 | has specific properties (e.g. composition, display), we adjust | |
650 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 651 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 652 | variable is set to nil before reading a command. */ |
da8f7368 | 653 | |
adf5cb9c KH |
654 | Lisp_Object Vdisable_point_adjustment; |
655 | ||
656 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 657 | |
adf5cb9c KH |
658 | Lisp_Object Vglobal_disable_point_adjustment; |
659 | ||
fdbb67fe GM |
660 | /* The time when Emacs started being idle. */ |
661 | ||
662 | static EMACS_TIME timer_idleness_start_time; | |
663 | ||
3021d3a9 RS |
664 | /* After Emacs stops being idle, this saves the last value |
665 | of timer_idleness_start_time from when it was idle. */ | |
666 | ||
667 | static EMACS_TIME timer_last_idleness_start_time; | |
668 | ||
284f4730 JB |
669 | \f |
670 | /* Global variable declarations. */ | |
671 | ||
672 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
673 | void (*keyboard_init_hook) (); | |
674 | ||
0bbfdc25 GM |
675 | static int read_avail_input P_ ((int)); |
676 | static void get_input_pending P_ ((int *, int)); | |
20057d52 | 677 | static void get_filtered_input_pending P_ ((int *, int, int)); |
0bbfdc25 | 678 | static int readable_events P_ ((int)); |
20057d52 | 679 | static int readable_filtered_events P_ ((int, int)); |
0bbfdc25 GM |
680 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, |
681 | Lisp_Object, int *)); | |
8150596a | 682 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
683 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
684 | Lisp_Object *)); | |
685 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 686 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
687 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
688 | enum scroll_bar_part, | |
689 | Lisp_Object, Lisp_Object, | |
690 | unsigned long)); | |
514354e9 | 691 | #endif |
0bbfdc25 GM |
692 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
693 | Lisp_Object, char **, | |
694 | Lisp_Object *, unsigned)); | |
695 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
696 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 697 | static int parse_solitary_modifier (); |
0bbfdc25 | 698 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 699 | static void save_getcjmp (); |
0bbfdc25 | 700 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 701 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 702 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 703 | static void any_kboard_state P_ ((void)); |
5598c32e | 704 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
284f4730 | 705 | |
8026024c KH |
706 | /* Nonzero means don't try to suspend even if the operating system seems |
707 | to support it. */ | |
708 | static int cannot_suspend; | |
709 | ||
284f4730 JB |
710 | /* Install the string STR as the beginning of the string of echoing, |
711 | so that it serves as a prompt for the next character. | |
712 | Also start echoing. */ | |
713 | ||
dfcf069d | 714 | void |
284f4730 | 715 | echo_prompt (str) |
a4ef85ee | 716 | Lisp_Object str; |
284f4730 | 717 | { |
678e9d18 | 718 | current_kboard->echo_string = str; |
0d121f7c | 719 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 720 | echo_now (); |
284f4730 JB |
721 | } |
722 | ||
df0f2ba1 | 723 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
724 | C can be a character, which is printed prettily ("M-C-x" and all that |
725 | jazz), or a symbol, whose name is printed. */ | |
726 | ||
dfcf069d | 727 | void |
284f4730 JB |
728 | echo_char (c) |
729 | Lisp_Object c; | |
730 | { | |
c5fdd383 | 731 | if (current_kboard->immediate_echo) |
284f4730 | 732 | { |
678e9d18 GM |
733 | int size = KEY_DESCRIPTION_SIZE + 100; |
734 | char *buffer = (char *) alloca (size); | |
735 | char *ptr = buffer; | |
736 | Lisp_Object echo_string; | |
284f4730 | 737 | |
0d121f7c | 738 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 739 | |
284f4730 | 740 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 741 | c = EVENT_HEAD (c); |
284f4730 | 742 | |
8c18cbfb | 743 | if (INTEGERP (c)) |
284f4730 | 744 | { |
678e9d18 | 745 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 746 | } |
8c18cbfb | 747 | else if (SYMBOLP (c)) |
284f4730 | 748 | { |
1b049b51 KR |
749 | Lisp_Object name = SYMBOL_NAME (c); |
750 | int nbytes = SBYTES (name); | |
c60ee5e7 | 751 | |
0d121f7c | 752 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
753 | { |
754 | int offset = ptr - buffer; | |
0d121f7c | 755 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
756 | buffer = (char *) alloca (size); |
757 | ptr = buffer + offset; | |
758 | } | |
759 | ||
1b049b51 KR |
760 | ptr += copy_text (SDATA (name), ptr, nbytes, |
761 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
762 | } |
763 | ||
0d121f7c | 764 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 765 | && help_char_p (c)) |
284f4730 | 766 | { |
678e9d18 GM |
767 | const char *text = " (Type ? for further options)"; |
768 | int len = strlen (text); | |
c60ee5e7 | 769 | |
678e9d18 GM |
770 | if (size - (ptr - buffer) < len) |
771 | { | |
772 | int offset = ptr - buffer; | |
773 | size += len; | |
774 | buffer = (char *) alloca (size); | |
775 | ptr = buffer + offset; | |
776 | } | |
777 | ||
778 | bcopy (text, ptr, len); | |
779 | ptr += len; | |
284f4730 JB |
780 | } |
781 | ||
0d121f7c GM |
782 | /* Replace a dash from echo_dash with a space, otherwise |
783 | add a space at the end as a separator between keys. */ | |
678e9d18 | 784 | if (STRINGP (echo_string) |
2ff4d3d9 | 785 | && SCHARS (echo_string) > 1) |
0d121f7c | 786 | { |
2ff4d3d9 RS |
787 | Lisp_Object last_char, prev_char, idx; |
788 | ||
789 | idx = make_number (SCHARS (echo_string) - 2); | |
790 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
791 | |
792 | idx = make_number (SCHARS (echo_string) - 1); | |
793 | last_char = Faref (echo_string, idx); | |
794 | ||
2ff4d3d9 RS |
795 | /* We test PREV_CHAR to make sure this isn't the echoing |
796 | of a minus-sign. */ | |
797 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
798 | Faset (echo_string, idx, make_number (' ')); |
799 | else | |
800 | echo_string = concat2 (echo_string, build_string (" ")); | |
801 | } | |
678e9d18 GM |
802 | |
803 | current_kboard->echo_string | |
804 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 805 | |
3dbd9ee4 | 806 | echo_now (); |
284f4730 JB |
807 | } |
808 | } | |
809 | ||
810 | /* Temporarily add a dash to the end of the echo string if it's not | |
811 | empty, so that it serves as a mini-prompt for the very next character. */ | |
812 | ||
dfcf069d | 813 | void |
284f4730 JB |
814 | echo_dash () |
815 | { | |
678e9d18 GM |
816 | /* Do nothing if not echoing at all. */ |
817 | if (NILP (current_kboard->echo_string)) | |
818 | return; | |
819 | ||
c5fdd383 | 820 | if (!current_kboard->immediate_echo |
0d121f7c | 821 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 822 | return; |
c60ee5e7 | 823 | |
7a80a6f6 | 824 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 825 | if (current_kboard->echo_after_prompt |
0d121f7c | 826 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 827 | return; |
c60ee5e7 | 828 | |
284f4730 JB |
829 | /* Put a dash at the end of the buffer temporarily, |
830 | but make it go away when the next character is added. */ | |
678e9d18 GM |
831 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
832 | build_string ("-")); | |
3dbd9ee4 | 833 | echo_now (); |
284f4730 JB |
834 | } |
835 | ||
836 | /* Display the current echo string, and begin echoing if not already | |
837 | doing so. */ | |
838 | ||
07a59269 | 839 | void |
3dbd9ee4 | 840 | echo_now () |
284f4730 | 841 | { |
c5fdd383 | 842 | if (!current_kboard->immediate_echo) |
284f4730 JB |
843 | { |
844 | int i; | |
c5fdd383 | 845 | current_kboard->immediate_echo = 1; |
284f4730 JB |
846 | |
847 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
848 | { |
849 | Lisp_Object c; | |
22b94eeb RS |
850 | |
851 | /* Set before_command_echo_length to the value that would | |
852 | have been saved before the start of this subcommand in | |
853 | command_loop_1, if we had already been echoing then. */ | |
854 | if (i == this_single_command_key_start) | |
855 | before_command_echo_length = echo_length (); | |
856 | ||
d0a57728 RS |
857 | c = XVECTOR (this_command_keys)->contents[i]; |
858 | if (! (EVENT_HAS_PARAMETERS (c) | |
859 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
860 | echo_char (c); | |
861 | } | |
22b94eeb RS |
862 | |
863 | /* Set before_command_echo_length to the value that would | |
864 | have been saved before the start of this subcommand in | |
865 | command_loop_1, if we had already been echoing then. */ | |
866 | if (this_command_key_count == this_single_command_key_start) | |
867 | before_command_echo_length = echo_length (); | |
868 | ||
869 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
870 | echo_dash (); |
871 | } | |
872 | ||
873 | echoing = 1; | |
678e9d18 | 874 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 875 | SBYTES (current_kboard->echo_string), |
d5db4077 | 876 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
877 | echoing = 0; |
878 | ||
59a84f8e GM |
879 | /* Record in what buffer we echoed, and from which kboard. */ |
880 | echo_message_buffer = echo_area_buffer[0]; | |
881 | echo_kboard = current_kboard; | |
882 | ||
284f4730 JB |
883 | if (waiting_for_input && !NILP (Vquit_flag)) |
884 | quit_throw_to_read_char (); | |
885 | } | |
886 | ||
887 | /* Turn off echoing, for the start of a new command. */ | |
888 | ||
dfcf069d | 889 | void |
284f4730 JB |
890 | cancel_echoing () |
891 | { | |
c5fdd383 | 892 | current_kboard->immediate_echo = 0; |
c5fdd383 | 893 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 894 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
895 | ok_to_echo_at_next_pause = NULL; |
896 | echo_kboard = NULL; | |
897 | echo_message_buffer = Qnil; | |
284f4730 JB |
898 | } |
899 | ||
900 | /* Return the length of the current echo string. */ | |
901 | ||
902 | static int | |
903 | echo_length () | |
904 | { | |
678e9d18 | 905 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 906 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 907 | : 0); |
284f4730 JB |
908 | } |
909 | ||
910 | /* Truncate the current echo message to its first LEN chars. | |
911 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 912 | switches frames while entering a key sequence. */ |
284f4730 JB |
913 | |
914 | static void | |
678e9d18 GM |
915 | echo_truncate (nchars) |
916 | int nchars; | |
917 | { | |
918 | if (STRINGP (current_kboard->echo_string)) | |
919 | current_kboard->echo_string | |
920 | = Fsubstring (current_kboard->echo_string, | |
921 | make_number (0), make_number (nchars)); | |
922 | truncate_echo_area (nchars); | |
284f4730 JB |
923 | } |
924 | ||
925 | \f | |
926 | /* Functions for manipulating this_command_keys. */ | |
927 | static void | |
928 | add_command_key (key) | |
929 | Lisp_Object key; | |
930 | { | |
22b94eeb RS |
931 | #if 0 /* Not needed after we made Freset_this_command_lengths |
932 | do the job immediately. */ | |
71918b75 RS |
933 | /* If reset-this-command-length was called recently, obey it now. |
934 | See the doc string of that function for an explanation of why. */ | |
935 | if (before_command_restore_flag) | |
936 | { | |
937 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
938 | if (this_command_key_count < this_single_command_key_start) |
939 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
940 | echo_truncate (before_command_echo_length_1); |
941 | before_command_restore_flag = 0; | |
942 | } | |
22b94eeb | 943 | #endif |
71918b75 | 944 | |
f4e05d97 GM |
945 | if (this_command_key_count >= ASIZE (this_command_keys)) |
946 | this_command_keys = larger_vector (this_command_keys, | |
947 | 2 * ASIZE (this_command_keys), | |
948 | Qnil); | |
6569cc8d | 949 | |
f4e05d97 GM |
950 | AREF (this_command_keys, this_command_key_count) = key; |
951 | ++this_command_key_count; | |
284f4730 | 952 | } |
f4e05d97 | 953 | |
284f4730 JB |
954 | \f |
955 | Lisp_Object | |
956 | recursive_edit_1 () | |
957 | { | |
aed13378 | 958 | int count = SPECPDL_INDEX (); |
284f4730 JB |
959 | Lisp_Object val; |
960 | ||
961 | if (command_loop_level > 0) | |
962 | { | |
963 | specbind (Qstandard_output, Qt); | |
964 | specbind (Qstandard_input, Qt); | |
965 | } | |
966 | ||
84265027 | 967 | #ifdef HAVE_X_WINDOWS |
526a058f | 968 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 969 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
970 | can take some time. Do not check for display_hourglass_p here, |
971 | because it could already be nil. */ | |
526a058f | 972 | cancel_hourglass (); |
84265027 GM |
973 | #endif |
974 | ||
980a2d69 GM |
975 | /* This function may have been called from a debugger called from |
976 | within redisplay, for instance by Edebugging a function called | |
977 | from fontification-functions. We want to allow redisplay in | |
978 | the debugging session. | |
979 | ||
980 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
981 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
982 | recursive edit, the original redisplay leading to the recursive | |
983 | edit will be unwound. The outcome should therefore be safe. */ | |
984 | specbind (Qinhibit_redisplay, Qnil); | |
985 | redisplaying_p = 0; | |
986 | ||
284f4730 JB |
987 | val = command_loop (); |
988 | if (EQ (val, Qt)) | |
989 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
990 | /* Handle throw from read_minibuf when using minibuffer |
991 | while it's active but we're in another window. */ | |
992 | if (STRINGP (val)) | |
993 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 994 | |
cb5df6ae | 995 | return unbind_to (count, Qnil); |
284f4730 JB |
996 | } |
997 | ||
998 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 999 | |
07a59269 | 1000 | void |
284f4730 JB |
1001 | record_auto_save () |
1002 | { | |
c43b1734 | 1003 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 1004 | } |
5846638c RS |
1005 | |
1006 | /* Make an auto save happen as soon as possible at command level. */ | |
1007 | ||
dfcf069d | 1008 | void |
5846638c RS |
1009 | force_auto_save_soon () |
1010 | { | |
1011 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
1012 | |
1013 | record_asynch_buffer_change (); | |
5846638c | 1014 | } |
284f4730 | 1015 | \f |
284f4730 | 1016 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
1017 | doc: /* Invoke the editor command loop recursively. |
1018 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1019 | that tells this function to return. | |
1020 | Alternately, `(throw 'exit t)' makes this function signal an error. | |
1021 | This function is called by the editor initialization to begin editing. */) | |
1022 | () | |
284f4730 | 1023 | { |
aed13378 | 1024 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1025 | Lisp_Object buffer; |
284f4730 JB |
1026 | |
1027 | command_loop_level++; | |
1028 | update_mode_lines = 1; | |
1029 | ||
9ce50b1e GM |
1030 | if (command_loop_level |
1031 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1032 | buffer = Fcurrent_buffer (); | |
1033 | else | |
1034 | buffer = Qnil; | |
1035 | ||
1036 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1037 | like it is done in the splash screen display, we have to | |
1038 | make sure that we restore single_kboard as command_loop_1 | |
1039 | would have done if it were left normally. */ | |
284f4730 | 1040 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1041 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1042 | ||
284f4730 JB |
1043 | recursive_edit_1 (); |
1044 | return unbind_to (count, Qnil); | |
1045 | } | |
1046 | ||
1047 | Lisp_Object | |
9ce50b1e GM |
1048 | recursive_edit_unwind (info) |
1049 | Lisp_Object info; | |
284f4730 | 1050 | { |
9ce50b1e GM |
1051 | if (BUFFERP (XCAR (info))) |
1052 | Fset_buffer (XCAR (info)); | |
c60ee5e7 | 1053 | |
9ce50b1e GM |
1054 | if (NILP (XCDR (info))) |
1055 | any_kboard_state (); | |
1056 | else | |
1057 | single_kboard_state (); | |
c60ee5e7 | 1058 | |
284f4730 JB |
1059 | command_loop_level--; |
1060 | update_mode_lines = 1; | |
1061 | return Qnil; | |
1062 | } | |
9ce50b1e | 1063 | |
284f4730 | 1064 | \f |
604ccd1d | 1065 | static void |
1e8bd3da | 1066 | any_kboard_state () |
604ccd1d | 1067 | { |
1e8bd3da RS |
1068 | #ifdef MULTI_KBOARD |
1069 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1070 | it will right away be read by read_key_sequence, | |
1071 | and then if we do switch KBOARDS, it will go into the side | |
1072 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1073 | if (CONSP (Vunread_command_events)) |
4524b161 | 1074 | { |
c5fdd383 KH |
1075 | current_kboard->kbd_queue |
1076 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1077 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1078 | } |
604ccd1d | 1079 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1080 | #endif |
1081 | single_kboard = 0; | |
1082 | #endif | |
604ccd1d | 1083 | } |
1e8bd3da RS |
1084 | |
1085 | /* Switch to the single-kboard state, making current_kboard | |
1086 | the only KBOARD from which further input is accepted. */ | |
1087 | ||
1088 | void | |
1089 | single_kboard_state () | |
1090 | { | |
1091 | #ifdef MULTI_KBOARD | |
1092 | single_kboard = 1; | |
604ccd1d | 1093 | #endif |
1e8bd3da RS |
1094 | } |
1095 | ||
1096 | /* Maintain a stack of kboards, so other parts of Emacs | |
1097 | can switch temporarily to the kboard of a given frame | |
1098 | and then revert to the previous status. */ | |
1099 | ||
1100 | struct kboard_stack | |
1101 | { | |
1102 | KBOARD *kboard; | |
1103 | struct kboard_stack *next; | |
1104 | }; | |
1105 | ||
1106 | static struct kboard_stack *kboard_stack; | |
1107 | ||
1108 | void | |
1109 | push_frame_kboard (f) | |
1110 | FRAME_PTR f; | |
1111 | { | |
ab48365b | 1112 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1113 | struct kboard_stack *p |
1114 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1115 | ||
1116 | p->next = kboard_stack; | |
1117 | p->kboard = current_kboard; | |
1118 | kboard_stack = p; | |
1119 | ||
1120 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1121 | #endif |
1e8bd3da RS |
1122 | } |
1123 | ||
1124 | void | |
1125 | pop_frame_kboard () | |
1126 | { | |
ab48365b | 1127 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1128 | struct kboard_stack *p = kboard_stack; |
1129 | current_kboard = p->kboard; | |
1130 | kboard_stack = p->next; | |
1131 | xfree (p); | |
ab48365b | 1132 | #endif |
1e8bd3da RS |
1133 | } |
1134 | \f | |
1135 | /* Handle errors that are not handled at inner levels | |
1136 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1137 | |
284f4730 JB |
1138 | Lisp_Object |
1139 | cmd_error (data) | |
1140 | Lisp_Object data; | |
a1341f75 | 1141 | { |
a9f16aa9 | 1142 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1143 | char macroerror[50]; |
1144 | ||
160552c5 RS |
1145 | #ifdef HAVE_X_WINDOWS |
1146 | if (display_hourglass_p) | |
1147 | cancel_hourglass (); | |
1148 | #endif | |
1149 | ||
e881d8b2 RS |
1150 | if (!NILP (executing_macro)) |
1151 | { | |
1152 | if (executing_macro_iterations == 1) | |
1153 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
1154 | else | |
1155 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
1156 | executing_macro_iterations); | |
1157 | } | |
1158 | else | |
1159 | *macroerror = 0; | |
a9f16aa9 | 1160 | |
a1341f75 RS |
1161 | Vstandard_output = Qt; |
1162 | Vstandard_input = Qt; | |
1163 | Vexecuting_macro = Qnil; | |
9f58e89e | 1164 | executing_macro = Qnil; |
d8bcf58e | 1165 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1166 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1167 | cancel_echoing (); |
a9f16aa9 KH |
1168 | |
1169 | /* Avoid unquittable loop if data contains a circular list. */ | |
1170 | old_level = Vprint_level; | |
1171 | old_length = Vprint_length; | |
0c04a67e RS |
1172 | XSETFASTINT (Vprint_level, 10); |
1173 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1174 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1175 | Vprint_level = old_level; |
1176 | Vprint_length = old_length; | |
a1341f75 RS |
1177 | |
1178 | Vquit_flag = Qnil; | |
1179 | ||
1180 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1181 | #ifdef MULTI_KBOARD |
1e8bd3da | 1182 | any_kboard_state (); |
ff4b06d3 | 1183 | #endif |
a1341f75 RS |
1184 | |
1185 | return make_number (0); | |
1186 | } | |
1187 | ||
301738ed RS |
1188 | /* Take actions on handling an error. DATA is the data that describes |
1189 | the error. | |
1190 | ||
1191 | CONTEXT is a C-string containing ASCII characters only which | |
1192 | describes the context in which the error happened. If we need to | |
1193 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1194 | string. */ | |
1195 | ||
07a59269 | 1196 | void |
a1341f75 RS |
1197 | cmd_error_internal (data, context) |
1198 | Lisp_Object data; | |
1199 | char *context; | |
284f4730 | 1200 | { |
284f4730 | 1201 | Lisp_Object stream; |
7ee32cda | 1202 | int kill_emacs_p = 0; |
788f89eb | 1203 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1204 | |
1205 | Vquit_flag = Qnil; | |
1206 | Vinhibit_quit = Qt; | |
985f9f66 | 1207 | clear_message (1, 0); |
284f4730 | 1208 | |
ff11dfa1 | 1209 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1210 | yet, or we're not interactive, it's best to dump this message out |
1211 | to stderr and exit. */ | |
788f89eb | 1212 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1213 | /* This is the case of the frame dumped with Emacs, when we're |
1214 | running under a window system. */ | |
1215 | || (!NILP (Vwindow_system) | |
1216 | && !inhibit_window_system | |
788f89eb | 1217 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1218 | || noninteractive) |
7ee32cda GM |
1219 | { |
1220 | stream = Qexternal_debugging_output; | |
1221 | kill_emacs_p = 1; | |
1222 | } | |
284f4730 JB |
1223 | else |
1224 | { | |
1225 | Fdiscard_input (); | |
dc4854ce | 1226 | message_log_maybe_newline (); |
284f4730 JB |
1227 | bitch_at_user (); |
1228 | stream = Qt; | |
1229 | } | |
1230 | ||
dc4854ce RS |
1231 | /* The immediate context is not interesting for Quits, |
1232 | since they are asyncronous. */ | |
1233 | if (EQ (XCAR (data), Qquit)) | |
1234 | Vsignaling_function = Qnil; | |
c60ee5e7 | 1235 | |
dc4854ce | 1236 | print_error_message (data, stream, context, Vsignaling_function); |
a1341f75 | 1237 | |
dc4854ce | 1238 | Vsignaling_function = Qnil; |
284f4730 | 1239 | |
ff11dfa1 | 1240 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1241 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1242 | if (kill_emacs_p) |
284f4730 JB |
1243 | { |
1244 | Fterpri (stream); | |
1245 | Fkill_emacs (make_number (-1)); | |
1246 | } | |
284f4730 JB |
1247 | } |
1248 | \f | |
1249 | Lisp_Object command_loop_1 (); | |
1250 | Lisp_Object command_loop_2 (); | |
1251 | Lisp_Object top_level_1 (); | |
1252 | ||
1253 | /* Entry to editor-command-loop. | |
1254 | This level has the catches for exiting/returning to editor command loop. | |
1255 | It returns nil to exit recursive edit, t to abort it. */ | |
1256 | ||
1257 | Lisp_Object | |
1258 | command_loop () | |
1259 | { | |
1260 | if (command_loop_level > 0 || minibuf_level > 0) | |
1261 | { | |
07ba902e RS |
1262 | Lisp_Object val; |
1263 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1264 | executing_macro = Qnil; |
1265 | return val; | |
284f4730 JB |
1266 | } |
1267 | else | |
1268 | while (1) | |
1269 | { | |
1270 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1271 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1272 | executing_macro = Qnil; |
df0f2ba1 | 1273 | |
284f4730 JB |
1274 | /* End of file in -batch run causes exit here. */ |
1275 | if (noninteractive) | |
1276 | Fkill_emacs (Qt); | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | /* Here we catch errors in execution of commands within the | |
1281 | editing loop, and reenter the editing loop. | |
1282 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1283 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1284 | returned due to end of file (or end of kbd macro). */ |
1285 | ||
1286 | Lisp_Object | |
1287 | command_loop_2 () | |
1288 | { | |
1289 | register Lisp_Object val; | |
1290 | ||
1291 | do | |
1292 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1293 | while (!NILP (val)); | |
1294 | ||
1295 | return Qnil; | |
1296 | } | |
1297 | ||
1298 | Lisp_Object | |
1299 | top_level_2 () | |
1300 | { | |
1301 | return Feval (Vtop_level); | |
1302 | } | |
1303 | ||
1304 | Lisp_Object | |
1305 | top_level_1 () | |
1306 | { | |
1307 | /* On entry to the outer level, run the startup file */ | |
1308 | if (!NILP (Vtop_level)) | |
1309 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1310 | else if (!NILP (Vpurify_flag)) | |
1311 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1312 | else | |
1313 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1314 | return Qnil; | |
1315 | } | |
1316 | ||
1317 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1318 | doc: /* Exit all recursive editing levels. */) |
1319 | () | |
284f4730 | 1320 | { |
2c9cf2c8 | 1321 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1322 | if (display_hourglass_p) |
1323 | cancel_hourglass (); | |
2c9cf2c8 | 1324 | #endif |
8c907a56 | 1325 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1326 | } |
1327 | ||
1328 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1329 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1330 | () | |
284f4730 JB |
1331 | { |
1332 | if (command_loop_level > 0 || minibuf_level > 0) | |
1333 | Fthrow (Qexit, Qnil); | |
1334 | ||
1335 | error ("No recursive edit is in progress"); | |
8c907a56 | 1336 | return Qnil; |
284f4730 JB |
1337 | } |
1338 | ||
1339 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1340 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1341 | () | |
284f4730 JB |
1342 | { |
1343 | if (command_loop_level > 0 || minibuf_level > 0) | |
1344 | Fthrow (Qexit, Qt); | |
1345 | ||
1346 | error ("No recursive edit is in progress"); | |
8c907a56 | 1347 | return Qnil; |
284f4730 JB |
1348 | } |
1349 | \f | |
1350 | /* This is the actual command reading loop, | |
1351 | sans error-handling encapsulation. */ | |
1352 | ||
a7b772c1 GM |
1353 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1354 | int, int, int)); | |
1355 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1356 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1357 | |
0af912f0 JD |
1358 | /* Cancel hourglass from protect_unwind. |
1359 | ARG is not used. */ | |
bb8db7e1 | 1360 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1361 | static Lisp_Object |
1362 | cancel_hourglass_unwind (arg) | |
1363 | Lisp_Object arg; | |
1364 | { | |
1365 | cancel_hourglass (); | |
3a0ae1f3 | 1366 | return Qnil; |
0af912f0 | 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. */ | |
8b461910 | 1637 | && ASCII_BYTE_P (lose) |
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, | |
8f924df7 | 1694 | XFASTINT (last_command_char)); |
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 | { |
2b95772c | 1872 | EMACS_INT beg, end; |
7e16ef60 SM |
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)) | |
8b461910 | 2924 | || CHAR_TABLE_P (Vkeyboard_translate_table)) |
f9414d62 RS |
2925 | { |
2926 | Lisp_Object d; | |
2927 | d = Faref (Vkeyboard_translate_table, c); | |
2928 | /* nil in keyboard-translate-table means no translation. */ | |
2929 | if (!NILP (d)) | |
2930 | c = d; | |
2931 | } | |
284f4730 JB |
2932 | } |
2933 | ||
e4fe371d RS |
2934 | /* If this event is a mouse click in the menu bar, |
2935 | return just menu-bar for now. Modify the mouse click event | |
2936 | so we won't do this twice, then queue it up. */ | |
2937 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2938 | && CONSP (XCDR (c)) |
e4fe371d | 2939 | && CONSP (EVENT_START (c)) |
7539e11f | 2940 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2941 | { |
e4fe371d | 2942 | Lisp_Object posn; |
284f4730 | 2943 | |
e4fe371d RS |
2944 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2945 | /* Handle menu-bar events: | |
2946 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2947 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2948 | { |
2949 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
f3fbd155 | 2950 | POSN_BUFFER_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2951 | |
e4fe371d RS |
2952 | also_record = c; |
2953 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2954 | c = posn; | |
284f4730 | 2955 | } |
284f4730 JB |
2956 | } |
2957 | ||
7d18f9ae RS |
2958 | /* Store these characters into recent_keys, the dribble file if any, |
2959 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2960 | record_char (c); |
2961 | if (! NILP (also_record)) | |
2962 | record_char (also_record); | |
51172b6d | 2963 | |
d5eecefb RS |
2964 | /* Wipe the echo area. |
2965 | But first, if we are about to use an input method, | |
2966 | save the echo area contents for it to refer to. */ | |
2967 | if (INTEGERP (c) | |
2968 | && ! NILP (Vinput_method_function) | |
2969 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2970 | && (unsigned) XINT (c) != 127 |
2971 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2972 | { |
2973 | previous_echo_area_message = Fcurrent_message (); | |
2974 | Vinput_method_previous_message = previous_echo_area_message; | |
2975 | } | |
d5eecefb | 2976 | |
1172eb8d GM |
2977 | /* Now wipe the echo area, except for help events which do their |
2978 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2979 | if (!CONSP (c) |
2980 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2981 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2982 | { |
2983 | if (!NILP (echo_area_buffer[0])) | |
2984 | safe_run_hooks (Qecho_area_clear_hook); | |
2985 | clear_message (1, 0); | |
2986 | } | |
d5eecefb | 2987 | |
7d18f9ae | 2988 | reread_for_input_method: |
284f4730 | 2989 | from_macro: |
7d18f9ae | 2990 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2991 | if (INTEGERP (c) |
2992 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2993 | /* Don't run the input method within a key sequence, |
2994 | after the first event of the key sequence. */ | |
2995 | && NILP (prev_event) | |
d5eecefb | 2996 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2997 | && (unsigned) XINT (c) != 127 |
2998 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 2999 | { |
c60ee5e7 | 3000 | Lisp_Object keys; |
63020c46 | 3001 | int key_count, key_count_reset; |
d5eecefb | 3002 | struct gcpro gcpro1; |
aed13378 | 3003 | int count = SPECPDL_INDEX (); |
d5eecefb | 3004 | |
6e5742a0 RS |
3005 | /* Save the echo status. */ |
3006 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3007 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
3008 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3009 | ||
22b94eeb | 3010 | #if 0 |
6e5742a0 RS |
3011 | if (before_command_restore_flag) |
3012 | { | |
3013 | this_command_key_count = before_command_key_count_1; | |
3014 | if (this_command_key_count < this_single_command_key_start) | |
3015 | this_single_command_key_start = this_command_key_count; | |
3016 | echo_truncate (before_command_echo_length_1); | |
3017 | before_command_restore_flag = 0; | |
3018 | } | |
22b94eeb | 3019 | #endif |
6e5742a0 RS |
3020 | |
3021 | /* Save the this_command_keys status. */ | |
3022 | key_count = this_command_key_count; | |
63020c46 | 3023 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3024 | |
3025 | if (key_count > 0) | |
3026 | keys = Fcopy_sequence (this_command_keys); | |
3027 | else | |
3028 | keys = Qnil; | |
d5eecefb | 3029 | GCPRO1 (keys); |
6e5742a0 RS |
3030 | |
3031 | /* Clear out this_command_keys. */ | |
3032 | this_command_key_count = 0; | |
63020c46 | 3033 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3034 | |
3035 | /* Now wipe the echo area. */ | |
985f9f66 | 3036 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3037 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3038 | clear_message (1, 0); |
6e5742a0 RS |
3039 | echo_truncate (0); |
3040 | ||
b638f328 RS |
3041 | /* If we are not reading a key sequence, |
3042 | never use the echo area. */ | |
3043 | if (maps == 0) | |
3044 | { | |
b638f328 RS |
3045 | specbind (Qinput_method_use_echo_area, Qt); |
3046 | } | |
3047 | ||
6e5742a0 | 3048 | /* Call the input method. */ |
d5eecefb | 3049 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3050 | |
3051 | tem = unbind_to (count, tem); | |
3052 | ||
6e5742a0 RS |
3053 | /* Restore the saved echoing state |
3054 | and this_command_keys state. */ | |
3055 | this_command_key_count = key_count; | |
63020c46 | 3056 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3057 | if (key_count > 0) |
3058 | this_command_keys = keys; | |
3059 | ||
3060 | cancel_echoing (); | |
3061 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
3062 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
3063 | if (saved_immediate_echo) | |
3064 | echo_now (); | |
3065 | ||
d5eecefb | 3066 | UNGCPRO; |
6e5742a0 | 3067 | |
d5eecefb RS |
3068 | /* The input method can return no events. */ |
3069 | if (! CONSP (tem)) | |
7d18f9ae | 3070 | { |
d5eecefb | 3071 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3072 | if (! NILP (previous_echo_area_message)) |
3073 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3074 | goto retry; |
7d18f9ae | 3075 | } |
d5eecefb | 3076 | /* It returned one event or more. */ |
7539e11f | 3077 | c = XCAR (tem); |
d5eecefb | 3078 | Vunread_post_input_method_events |
7539e11f | 3079 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3080 | } |
7c3bc944 | 3081 | |
7d18f9ae | 3082 | reread_first: |
284f4730 | 3083 | |
7ee32cda | 3084 | /* Display help if not echoing. */ |
1172eb8d | 3085 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3086 | { |
2190735a | 3087 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3088 | Lisp_Object help, object, position, window, tem; |
3089 | ||
3090 | tem = Fcdr (XCDR (c)); | |
3091 | help = Fcar (tem); | |
3092 | tem = Fcdr (tem); | |
3093 | window = Fcar (tem); | |
3094 | tem = Fcdr (tem); | |
3095 | object = Fcar (tem); | |
3096 | tem = Fcdr (tem); | |
3097 | position = Fcar (tem); | |
3098 | ||
2190735a | 3099 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3100 | |
3101 | /* We stopped being idle for this event; undo that. */ | |
3102 | timer_idleness_start_time = last_idle_start; | |
7ee32cda GM |
3103 | goto retry; |
3104 | } | |
c60ee5e7 | 3105 | |
63020c46 RS |
3106 | if (! reread || this_command_key_count == 0 |
3107 | || this_command_key_count_reset) | |
e4fe371d | 3108 | { |
7d18f9ae RS |
3109 | |
3110 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3111 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3112 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3113 | && ! (EVENT_HAS_PARAMETERS (c) |
3114 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3115 | { | |
3116 | echo_char (c); | |
3117 | if (! NILP (also_record)) | |
3118 | echo_char (also_record); | |
3119 | /* Once we reread a character, echoing can happen | |
3120 | the next time we pause to read a new one. */ | |
985f9f66 | 3121 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3122 | } |
3123 | ||
3124 | /* Record this character as part of the current key. */ | |
3125 | add_command_key (c); | |
e4fe371d | 3126 | if (! NILP (also_record)) |
7d18f9ae | 3127 | add_command_key (also_record); |
e4fe371d | 3128 | } |
b8556aee | 3129 | |
284f4730 | 3130 | last_input_char = c; |
c43b1734 | 3131 | num_input_events++; |
284f4730 JB |
3132 | |
3133 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3134 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3135 | { |
3136 | Lisp_Object tem0; | |
aed13378 | 3137 | count = SPECPDL_INDEX (); |
284f4730 JB |
3138 | |
3139 | record_unwind_protect (Fset_window_configuration, | |
3140 | Fcurrent_window_configuration (Qnil)); | |
3141 | ||
3142 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3143 | if (STRINGP (tem0)) |
284f4730 JB |
3144 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3145 | ||
3146 | cancel_echoing (); | |
3cb81011 KH |
3147 | do |
3148 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3149 | while (BUFFERP (c)); |
ff11dfa1 | 3150 | /* Remove the help from the frame */ |
284f4730 | 3151 | unbind_to (count, Qnil); |
410d4de9 | 3152 | |
284f4730 JB |
3153 | redisplay (); |
3154 | if (EQ (c, make_number (040))) | |
3155 | { | |
3156 | cancel_echoing (); | |
3cb81011 KH |
3157 | do |
3158 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3159 | while (BUFFERP (c)); |
284f4730 JB |
3160 | } |
3161 | } | |
3162 | ||
184c3d81 RS |
3163 | exit: |
3164 | RESUME_POLLING; | |
7c3bc944 | 3165 | RETURN_UNGCPRO (c); |
284f4730 JB |
3166 | } |
3167 | ||
8eb4d8ef RS |
3168 | /* Record a key that came from a mouse menu. |
3169 | Record it for echoing, for this-command-keys, and so on. */ | |
3170 | ||
3171 | static void | |
3172 | record_menu_key (c) | |
3173 | Lisp_Object c; | |
3174 | { | |
3175 | /* Wipe the echo area. */ | |
985f9f66 | 3176 | clear_message (1, 0); |
8eb4d8ef RS |
3177 | |
3178 | record_char (c); | |
3179 | ||
22b94eeb | 3180 | #if 0 |
8eb4d8ef RS |
3181 | before_command_key_count = this_command_key_count; |
3182 | before_command_echo_length = echo_length (); | |
22b94eeb | 3183 | #endif |
8eb4d8ef RS |
3184 | |
3185 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3186 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3187 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3188 | { |
3189 | echo_char (c); | |
3190 | ||
3191 | /* Once we reread a character, echoing can happen | |
3192 | the next time we pause to read a new one. */ | |
3193 | ok_to_echo_at_next_pause = 0; | |
3194 | } | |
3195 | ||
3196 | /* Record this character as part of the current key. */ | |
3197 | add_command_key (c); | |
3198 | ||
3199 | /* Re-reading in the middle of a command */ | |
3200 | last_input_char = c; | |
c43b1734 | 3201 | num_input_events++; |
8eb4d8ef RS |
3202 | } |
3203 | ||
ecb7cb34 KH |
3204 | /* Return 1 if should recognize C as "the help character". */ |
3205 | ||
3206 | int | |
3207 | help_char_p (c) | |
3208 | Lisp_Object c; | |
3209 | { | |
3210 | Lisp_Object tail; | |
3211 | ||
3212 | if (EQ (c, Vhelp_char)) | |
3213 | return 1; | |
7539e11f KR |
3214 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3215 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3216 | return 1; |
3217 | return 0; | |
3218 | } | |
3219 | ||
e4fe371d RS |
3220 | /* Record the input event C in various ways. */ |
3221 | ||
3222 | static void | |
3223 | record_char (c) | |
3224 | Lisp_Object c; | |
3225 | { | |
090c68b9 | 3226 | int recorded = 0; |
52be17cc | 3227 | |
090c68b9 KS |
3228 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3229 | { | |
3230 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3231 | events, we filter out repeated help-echo events, only store the | |
3232 | first and last in a series of mouse-movement events, and don't | |
3233 | store repeated help-echo events which are only separated by | |
3234 | mouse-movement events. */ | |
3235 | ||
3236 | Lisp_Object ev1, ev2, ev3; | |
3237 | int ix1, ix2, ix3; | |
c60ee5e7 | 3238 | |
090c68b9 KS |
3239 | if ((ix1 = recent_keys_index - 1) < 0) |
3240 | ix1 = NUM_RECENT_KEYS - 1; | |
3241 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3242 | |
090c68b9 KS |
3243 | if ((ix2 = ix1 - 1) < 0) |
3244 | ix2 = NUM_RECENT_KEYS - 1; | |
3245 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3246 | |
090c68b9 KS |
3247 | if ((ix3 = ix2 - 1) < 0) |
3248 | ix3 = NUM_RECENT_KEYS - 1; | |
3249 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3250 | |
090c68b9 KS |
3251 | if (EQ (XCAR (c), Qhelp_echo)) |
3252 | { | |
3253 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3254 | message, and a different help than the previously recorded |
090c68b9 KS |
3255 | event. */ |
3256 | Lisp_Object help, last_help; | |
3257 | ||
3258 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3259 | if (!STRINGP (help)) | |
3260 | recorded = 1; | |
3261 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3262 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3263 | recorded = 1; | |
3264 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3265 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3266 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3267 | recorded = -1; | |
3268 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3269 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3270 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3271 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3272 | recorded = -2; | |
3273 | } | |
3274 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3275 | { |
090c68b9 KS |
3276 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3277 | So additional mouse movement events replace the last element. */ | |
3278 | Lisp_Object last_window, window; | |
3279 | ||
3280 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3281 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3282 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3283 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3284 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3285 | { |
090c68b9 KS |
3286 | ASET (recent_keys, ix1, c); |
3287 | recorded = 1; | |
52be17cc GM |
3288 | } |
3289 | } | |
3290 | } | |
3291 | else | |
090c68b9 KS |
3292 | store_kbd_macro_char (c); |
3293 | ||
3294 | if (!recorded) | |
e8a50785 GM |
3295 | { |
3296 | total_keys++; | |
3297 | ASET (recent_keys, recent_keys_index, c); | |
3298 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3299 | recent_keys_index = 0; | |
3300 | } | |
090c68b9 KS |
3301 | else if (recorded < 0) |
3302 | { | |
3303 | /* We need to remove one or two events from recent_keys. | |
3304 | To do this, we simply put nil at those events and move the | |
3305 | recent_keys_index backwards over those events. Usually, | |
3306 | users will never see those nil events, as they will be | |
3307 | overwritten by the command keys entered to see recent_keys | |
3308 | (e.g. C-h l). */ | |
3309 | ||
3310 | while (recorded++ < 0 && total_keys > 0) | |
3311 | { | |
3312 | if (total_keys < NUM_RECENT_KEYS) | |
3313 | total_keys--; | |
3314 | if (--recent_keys_index < 0) | |
3315 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3316 | ASET (recent_keys, recent_keys_index, Qnil); | |
3317 | } | |
3318 | } | |
3319 | ||
3320 | num_nonmacro_input_events++; | |
c60ee5e7 | 3321 | |
e4fe371d RS |
3322 | /* Write c to the dribble file. If c is a lispy event, write |
3323 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3324 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3325 | if (dribble) | |
3326 | { | |
3327 | if (INTEGERP (c)) | |
3328 | { | |
3329 | if (XUINT (c) < 0x100) | |
3330 | putc (XINT (c), dribble); | |
3331 | else | |
6de34814 | 3332 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3333 | } |
3334 | else | |
3335 | { | |
3336 | Lisp_Object dribblee; | |
3337 | ||
3338 | /* If it's a structured event, take the event header. */ | |
3339 | dribblee = EVENT_HEAD (c); | |
3340 | ||
3341 | if (SYMBOLP (dribblee)) | |
3342 | { | |
3343 | putc ('<', dribble); | |
d5db4077 KR |
3344 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3345 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3346 | dribble); |
3347 | putc ('>', dribble); | |
3348 | } | |
3349 | } | |
3350 | ||
3351 | fflush (dribble); | |
3352 | } | |
e4fe371d RS |
3353 | } |
3354 | ||
284f4730 JB |
3355 | Lisp_Object |
3356 | print_help (object) | |
3357 | Lisp_Object object; | |
3358 | { | |
622de3e9 | 3359 | struct buffer *old = current_buffer; |
284f4730 | 3360 | Fprinc (object, Qnil); |
622de3e9 KH |
3361 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3362 | call0 (intern ("help-mode")); | |
3363 | set_buffer_internal (old); | |
284f4730 JB |
3364 | return Qnil; |
3365 | } | |
3366 | ||
3367 | /* Copy out or in the info on where C-g should throw to. | |
3368 | This is used when running Lisp code from within get_char, | |
3369 | in case get_char is called recursively. | |
3370 | See read_process_output. */ | |
3371 | ||
dfcf069d | 3372 | static void |
284f4730 JB |
3373 | save_getcjmp (temp) |
3374 | jmp_buf temp; | |
3375 | { | |
3376 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3377 | } | |
3378 | ||
dfcf069d | 3379 | static void |
284f4730 JB |
3380 | restore_getcjmp (temp) |
3381 | jmp_buf temp; | |
3382 | { | |
3383 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3384 | } | |
284f4730 | 3385 | \f |
2eb6bfbe RM |
3386 | #ifdef HAVE_MOUSE |
3387 | ||
284f4730 JB |
3388 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3389 | of this function. */ | |
a9d77f1f | 3390 | |
284f4730 JB |
3391 | static Lisp_Object |
3392 | tracking_off (old_value) | |
3393 | Lisp_Object old_value; | |
3394 | { | |
71edead1 RS |
3395 | do_mouse_tracking = old_value; |
3396 | if (NILP (old_value)) | |
284f4730 | 3397 | { |
284f4730 JB |
3398 | /* Redisplay may have been preempted because there was input |
3399 | available, and it assumes it will be called again after the | |
3400 | input has been processed. If the only input available was | |
3401 | the sort that we have just disabled, then we need to call | |
3402 | redisplay. */ | |
d9d4c147 | 3403 | if (!readable_events (1)) |
284f4730 | 3404 | { |
3007ebfb | 3405 | redisplay_preserve_echo_area (6); |
d9d4c147 | 3406 | get_input_pending (&input_pending, 1); |
284f4730 JB |
3407 | } |
3408 | } | |
30690496 | 3409 | return Qnil; |
284f4730 JB |
3410 | } |
3411 | ||
3412 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3413 | doc: /* Evaluate BODY with mouse movement events enabled. |
3414 | Within a `track-mouse' form, mouse motion generates input events that | |
3415 | you can read with `read-event'. | |
3416 | Normally, mouse motion is ignored. | |
3417 | usage: (track-mouse BODY ...) */) | |
3418 | (args) | |
284f4730 JB |
3419 | Lisp_Object args; |
3420 | { | |
aed13378 | 3421 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3422 | Lisp_Object val; |
3423 | ||
a9d77f1f | 3424 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3425 | |
f3253854 | 3426 | do_mouse_tracking = Qt; |
df0f2ba1 | 3427 | |
284f4730 JB |
3428 | val = Fprogn (args); |
3429 | return unbind_to (count, val); | |
3430 | } | |
2eb6bfbe | 3431 | |
f3253854 KH |
3432 | /* If mouse has moved on some frame, return one of those frames. |
3433 | Return 0 otherwise. */ | |
3434 | ||
3435 | static FRAME_PTR | |
3436 | some_mouse_moved () | |
3437 | { | |
3438 | Lisp_Object tail, frame; | |
3439 | ||
3440 | FOR_EACH_FRAME (tail, frame) | |
3441 | { | |
3442 | if (XFRAME (frame)->mouse_moved) | |
3443 | return XFRAME (frame); | |
3444 | } | |
3445 | ||
3446 | return 0; | |
3447 | } | |
3448 | ||
2eb6bfbe | 3449 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3450 | \f |
3451 | /* Low level keyboard/mouse input. | |
3452 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3453 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3454 | |
3455 | /* Return true iff there are any events in the queue that read-char | |
3456 | would return. If this returns false, a read-char would block. */ | |
3457 | static int | |
20057d52 | 3458 | readable_filtered_events (do_timers_now, filter_events) |
d9d4c147 | 3459 | int do_timers_now; |
20057d52 | 3460 | int filter_events; |
a612e298 | 3461 | { |
4ec4ed6a RS |
3462 | if (do_timers_now) |
3463 | timer_check (do_timers_now); | |
3464 | ||
a0ba8995 | 3465 | /* If the buffer contains only FOCUS_IN_EVENT events, |
20057d52 | 3466 | and FILTER_EVENTS is nonzero, report it as empty. */ |
beecf6a1 | 3467 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3468 | { |
20057d52 | 3469 | int have_live_event = 1; |
a0ba8995 | 3470 | |
20057d52 JD |
3471 | if (filter_events) |
3472 | { | |
3473 | struct input_event *event; | |
3474 | ||
3475 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3476 | ? kbd_fetch_ptr | |
3477 | : kbd_buffer); | |
3478 | ||
3479 | while (have_live_event && event->kind == FOCUS_IN_EVENT) | |
3480 | { | |
3481 | event++; | |
3482 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
3483 | event = kbd_buffer; | |
3484 | if (event == kbd_store_ptr) | |
3485 | have_live_event = 0; | |
3486 | } | |
3487 | } | |
3488 | if (have_live_event) return 1; | |
a0ba8995 RS |
3489 | } |
3490 | ||
beecf6a1 | 3491 | #ifdef HAVE_MOUSE |
f3253854 | 3492 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3493 | return 1; |
3494 | #endif | |
1e8bd3da | 3495 | if (single_kboard) |
4c52b668 | 3496 | { |
c5fdd383 | 3497 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3498 | return 1; |
3499 | } | |
3500 | else | |
3501 | { | |
c5fdd383 KH |
3502 | KBOARD *kb; |
3503 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3504 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3505 | return 1; |
3506 | } | |
beecf6a1 | 3507 | return 0; |
a612e298 RS |
3508 | } |
3509 | ||
20057d52 JD |
3510 | /* Return true iff there are any events in the queue that read-char |
3511 | would return. If this returns false, a read-char would block. */ | |
3512 | static int | |
3513 | readable_events (do_timers_now) | |
3514 | int do_timers_now; | |
3515 | { | |
3516 | return readable_filtered_events (do_timers_now, 0); | |
3517 | } | |
3518 | ||
a612e298 RS |
3519 | /* Set this for debugging, to have a way to get out */ |
3520 | int stop_character; | |
284f4730 | 3521 | |
c5fdd383 KH |
3522 | #ifdef MULTI_KBOARD |
3523 | static KBOARD * | |
3524 | event_to_kboard (event) | |
5798cf15 KH |
3525 | struct input_event *event; |
3526 | { | |
3527 | Lisp_Object frame; | |
3528 | frame = event->frame_or_window; | |
3529 | if (CONSP (frame)) | |
7539e11f | 3530 | frame = XCAR (frame); |
5798cf15 KH |
3531 | else if (WINDOWP (frame)) |
3532 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3533 | ||
3534 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3535 | For now, just ignore the problem. |
3536 | Also ignore dead frames here. */ | |
3537 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3538 | return 0; |
3539 | else | |
c5fdd383 | 3540 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3541 | } |
3542 | #endif | |
3543 | ||
284f4730 JB |
3544 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3545 | ||
3546 | void | |
3547 | kbd_buffer_store_event (event) | |
3548 | register struct input_event *event; | |
3549 | { | |
3b8f9651 | 3550 | if (event->kind == NO_EVENT) |
284f4730 JB |
3551 | abort (); |
3552 | ||
3b8f9651 | 3553 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3554 | { |
e9bf89a0 | 3555 | register int c = event->code & 0377; |
284f4730 | 3556 | |
faf5e407 JB |
3557 | if (event->modifiers & ctrl_modifier) |
3558 | c = make_ctrl_char (c); | |
3559 | ||
9fd7d808 RS |
3560 | c |= (event->modifiers |
3561 | & (meta_modifier | alt_modifier | |
3562 | | hyper_modifier | super_modifier)); | |
3563 | ||
86e5706b | 3564 | if (c == quit_char) |
284f4730 | 3565 | { |
c5fdd383 KH |
3566 | #ifdef MULTI_KBOARD |
3567 | KBOARD *kb; | |
5798cf15 KH |
3568 | struct input_event *sp; |
3569 | ||
1e8bd3da | 3570 | if (single_kboard |
c5fdd383 KH |
3571 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3572 | kb != current_kboard)) | |
5798cf15 | 3573 | { |
c5fdd383 | 3574 | kb->kbd_queue |
5798cf15 KH |
3575 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3576 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3577 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3578 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3579 | { | |
3580 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3581 | sp = kbd_buffer; | |
3582 | ||
c5fdd383 | 3583 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3584 | { |
3b8f9651 | 3585 | sp->kind = NO_EVENT; |
5798cf15 | 3586 | sp->frame_or_window = Qnil; |
da8f7368 | 3587 | sp->arg = Qnil; |
5798cf15 KH |
3588 | } |
3589 | } | |
3590 | return; | |
3591 | } | |
3592 | #endif | |
3e51c7b7 | 3593 | |
284f4730 | 3594 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3595 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3596 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3597 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3598 | { |
9b8eb840 | 3599 | Lisp_Object focus; |
4bb994d1 | 3600 | |
9b8eb840 | 3601 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3602 | if (NILP (focus)) |
beecf6a1 | 3603 | focus = event->frame_or_window; |
4c52b668 KH |
3604 | internal_last_event_frame = focus; |
3605 | Vlast_event_frame = focus; | |
4bb994d1 | 3606 | } |
3e51c7b7 | 3607 | |
ffd56f97 | 3608 | last_event_timestamp = event->timestamp; |
7189cad8 | 3609 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3610 | return; |
3611 | } | |
3612 | ||
3613 | if (c && c == stop_character) | |
3614 | { | |
3615 | sys_suspend (); | |
3616 | return; | |
3617 | } | |
284f4730 | 3618 | } |
3b8f9651 | 3619 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3620 | Just ignore the second one. */ |
3b8f9651 | 3621 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3622 | && kbd_fetch_ptr != kbd_store_ptr |
3b8f9651 | 3623 | && kbd_store_ptr->kind == BUFFER_SWITCH_EVENT) |
3fe8e9a2 | 3624 | return; |
284f4730 | 3625 | |
beecf6a1 KH |
3626 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3627 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3628 | |
3629 | /* Don't let the very last slot in the buffer become full, | |
3630 | since that would make the two pointers equal, | |
3631 | and that is indistinguishable from an empty buffer. | |
3632 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3633 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3634 | { |
da8f7368 | 3635 | int idx; |
c60ee5e7 | 3636 | |
3b8f9651 | 3637 | #if 0 /* The SELECTION_REQUEST_EVENT case looks bogus, and it's error |
da8f7368 GM |
3638 | prone to assign individual members for other events, in case |
3639 | the input_event structure is changed. --2000-07-13, gerd. */ | |
7ee32cda | 3640 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 3641 | sp->kind = event->kind; |
3b8f9651 | 3642 | if (event->kind == SELECTION_REQUEST_EVENT) |
27203ead RS |
3643 | { |
3644 | /* We must not use the ordinary copying code for this case, | |
3645 | since `part' is an enum and copying it might not copy enough | |
3646 | in this case. */ | |
612b78ef | 3647 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
3648 | } |
3649 | else | |
da8f7368 | 3650 | |
27203ead | 3651 | { |
612b78ef KH |
3652 | sp->code = event->code; |
3653 | sp->part = event->part; | |
3654 | sp->frame_or_window = event->frame_or_window; | |
da8f7368 | 3655 | sp->arg = event->arg; |
612b78ef KH |
3656 | sp->modifiers = event->modifiers; |
3657 | sp->x = event->x; | |
3658 | sp->y = event->y; | |
3659 | sp->timestamp = event->timestamp; | |
27203ead | 3660 | } |
da8f7368 GM |
3661 | #else |
3662 | *kbd_store_ptr = *event; | |
3663 | #endif | |
284f4730 | 3664 | |
da8f7368 GM |
3665 | idx = 2 * (kbd_store_ptr - kbd_buffer); |
3666 | ASET (kbd_buffer_gcpro, idx, event->frame_or_window); | |
3667 | ASET (kbd_buffer_gcpro, idx + 1, event->arg); | |
3668 | ++kbd_store_ptr; | |
284f4730 JB |
3669 | } |
3670 | } | |
8dfd92c9 GM |
3671 | |
3672 | ||
f139e559 | 3673 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3674 | SIZE events. If there's not enough room in BUFP, ignore this |
3675 | event. | |
8dfd92c9 GM |
3676 | |
3677 | HELP is the help form. | |
3678 | ||
3679 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3680 | Lisp object where the help was found (a buffer, a string, an |
3681 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3682 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3683 | |
3684 | Value is the number of input_events generated. */ | |
3685 | ||
3686 | int | |
0bbfdc25 | 3687 | gen_help_event (bufp, size, help, frame, window, object, pos) |
8dfd92c9 | 3688 | struct input_event *bufp; |
0bbfdc25 | 3689 | int size; |
2190735a | 3690 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3691 | int pos; |
3692 | { | |
2e1a49ad | 3693 | if (size >= 1) |
0bbfdc25 GM |
3694 | { |
3695 | bufp->kind = HELP_EVENT; | |
3696 | bufp->frame_or_window = frame; | |
3697 | bufp->arg = object; | |
2e1a49ad SM |
3698 | bufp->x = WINDOWP (window) ? window : frame; |
3699 | bufp->y = help; | |
78134789 | 3700 | bufp->code = pos; |
2e1a49ad | 3701 | return 1; |
0bbfdc25 | 3702 | } |
2e1a49ad | 3703 | return 0; |
8dfd92c9 GM |
3704 | } |
3705 | ||
3706 | ||
3707 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3708 | ||
3709 | void | |
3710 | kbd_buffer_store_help_event (frame, help) | |
3711 | Lisp_Object frame, help; | |
3712 | { | |
3713 | struct input_event event; | |
3714 | ||
3715 | event.kind = HELP_EVENT; | |
3716 | event.frame_or_window = frame; | |
3717 | event.arg = Qnil; | |
2e1a49ad SM |
3718 | event.x = Qnil; |
3719 | event.y = help; | |
8dfd92c9 GM |
3720 | event.code = 0; |
3721 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3722 | } |
3723 | ||
a612e298 | 3724 | \f |
07de30b9 | 3725 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3726 | NO_EVENT. */ |
07de30b9 GV |
3727 | void |
3728 | discard_mouse_events () | |
3729 | { | |
3730 | struct input_event *sp; | |
3731 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3732 | { | |
3733 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3734 | sp = kbd_buffer; | |
3735 | ||
3b8f9651 | 3736 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3737 | || sp->kind == WHEEL_EVENT |
07de30b9 | 3738 | #ifdef WINDOWSNT |
3b8f9651 | 3739 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3740 | #endif |
3b8f9651 | 3741 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3742 | { |
3b8f9651 | 3743 | sp->kind = NO_EVENT; |
07de30b9 GV |
3744 | } |
3745 | } | |
3746 | } | |
eeabfe76 | 3747 | |
0bbfdc25 GM |
3748 | |
3749 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3750 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3751 | |
3b8f9651 | 3752 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3753 | the input queue, possibly leaving the input queue empty if there |
3754 | are no real input events. */ | |
3755 | ||
eeabfe76 EZ |
3756 | int |
3757 | kbd_buffer_events_waiting (discard) | |
3758 | int discard; | |
3759 | { | |
3760 | struct input_event *sp; | |
c60ee5e7 | 3761 | |
0bbfdc25 | 3762 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3763 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3764 | ++sp) |
eeabfe76 EZ |
3765 | { |
3766 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3767 | sp = kbd_buffer; | |
eeabfe76 | 3768 | } |
0bbfdc25 | 3769 | |
eeabfe76 EZ |
3770 | if (discard) |
3771 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3772 | |
3b8f9651 | 3773 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3774 | } |
0bbfdc25 | 3775 | |
07de30b9 | 3776 | \f |
0bbfdc25 GM |
3777 | /* Clear input event EVENT. */ |
3778 | ||
3779 | static INLINE void | |
3780 | clear_event (event) | |
3781 | struct input_event *event; | |
3782 | { | |
3783 | int idx = 2 * (event - kbd_buffer); | |
3784 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
3785 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
3b8f9651 | 3786 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3787 | } |
3788 | ||
3789 | ||
a612e298 RS |
3790 | /* Read one event from the event buffer, waiting if necessary. |
3791 | The value is a Lisp object representing the event. | |
3792 | The value is nil for an event that should be ignored, | |
3793 | or that was handled here. | |
3794 | We always read and discard one event. */ | |
284f4730 JB |
3795 | |
3796 | static Lisp_Object | |
83d68044 | 3797 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3798 | KBOARD **kbp; |
83d68044 | 3799 | int *used_mouse_menu; |
284f4730 JB |
3800 | { |
3801 | register int c; | |
3802 | Lisp_Object obj; | |
3803 | ||
3804 | if (noninteractive) | |
3805 | { | |
3806 | c = getchar (); | |
18cd2eeb | 3807 | XSETINT (obj, c); |
f5b56972 | 3808 | *kbp = current_kboard; |
284f4730 JB |
3809 | return obj; |
3810 | } | |
3811 | ||
3812 | /* Wait until there is input available. */ | |
3813 | for (;;) | |
3814 | { | |
beecf6a1 KH |
3815 | if (kbd_fetch_ptr != kbd_store_ptr) |
3816 | break; | |
3817 | #ifdef HAVE_MOUSE | |
f3253854 | 3818 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3819 | break; |
beecf6a1 | 3820 | #endif |
284f4730 JB |
3821 | |
3822 | /* If the quit flag is set, then read_char will return | |
3823 | quit_char, so that counts as "available input." */ | |
3824 | if (!NILP (Vquit_flag)) | |
3825 | quit_throw_to_read_char (); | |
3826 | ||
3827 | /* One way or another, wait until input is available; then, if | |
3828 | interrupt handlers have not read it, read it now. */ | |
3829 | ||
3830 | #ifdef OLDVMS | |
3831 | wait_for_kbd_input (); | |
3832 | #else | |
3833 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3834 | #ifdef SIGIO | |
3835 | gobble_input (0); | |
3836 | #endif /* SIGIO */ | |
beecf6a1 KH |
3837 | if (kbd_fetch_ptr != kbd_store_ptr) |
3838 | break; | |
3839 | #ifdef HAVE_MOUSE | |
f3253854 | 3840 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3841 | break; |
3842 | #endif | |
3843 | { | |
3844 | Lisp_Object minus_one; | |
f76475ad | 3845 | |
beecf6a1 | 3846 | XSETINT (minus_one, -1); |
d9d4c147 | 3847 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3848 | |
beecf6a1 KH |
3849 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3850 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3851 | read_avail_input (1); | |
3852 | } | |
284f4730 JB |
3853 | #endif /* not VMS */ |
3854 | } | |
3855 | ||
303b5b3f RS |
3856 | if (CONSP (Vunread_command_events)) |
3857 | { | |
3858 | Lisp_Object first; | |
7539e11f KR |
3859 | first = XCAR (Vunread_command_events); |
3860 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3861 | *kbp = current_kboard; |
3862 | return first; | |
3863 | } | |
3864 | ||
284f4730 JB |
3865 | /* At this point, we know that there is a readable event available |
3866 | somewhere. If the event queue is empty, then there must be a | |
3867 | mouse movement enabled and available. */ | |
beecf6a1 | 3868 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3869 | { |
cd21b839 | 3870 | struct input_event *event; |
3e51c7b7 | 3871 | |
beecf6a1 KH |
3872 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3873 | ? kbd_fetch_ptr | |
3874 | : kbd_buffer); | |
3e51c7b7 | 3875 | |
cd21b839 | 3876 | last_event_timestamp = event->timestamp; |
cd21b839 | 3877 | |
c5fdd383 KH |
3878 | #ifdef MULTI_KBOARD |
3879 | *kbp = event_to_kboard (event); | |
3880 | if (*kbp == 0) | |
3881 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3882 | #else |
c5fdd383 | 3883 | *kbp = &the_only_kboard; |
5798cf15 | 3884 | #endif |
beecf6a1 | 3885 | |
4bb994d1 JB |
3886 | obj = Qnil; |
3887 | ||
48e416d4 | 3888 | /* These two kinds of events get special handling |
a612e298 RS |
3889 | and don't actually appear to the command loop. |
3890 | We return nil for them. */ | |
3b8f9651 | 3891 | if (event->kind == SELECTION_REQUEST_EVENT) |
48e416d4 | 3892 | { |
598a9fa7 | 3893 | #ifdef HAVE_X11 |
1e8bd3da RS |
3894 | struct input_event copy; |
3895 | ||
4581e928 RS |
3896 | /* Remove it from the buffer before processing it, |
3897 | since otherwise swallow_events will see it | |
3898 | and process it again. */ | |
1e8bd3da | 3899 | copy = *event; |
beecf6a1 | 3900 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3901 | input_pending = readable_events (0); |
4581e928 | 3902 | x_handle_selection_request (©); |
598a9fa7 JB |
3903 | #else |
3904 | /* We're getting selection request events, but we don't have | |
3905 | a window system. */ | |
3906 | abort (); | |
3907 | #endif | |
48e416d4 RS |
3908 | } |
3909 | ||
3b8f9651 | 3910 | else if (event->kind == SELECTION_CLEAR_EVENT) |
48e416d4 | 3911 | { |
598a9fa7 | 3912 | #ifdef HAVE_X11 |
e0301c07 RS |
3913 | struct input_event copy; |
3914 | ||
3915 | /* Remove it from the buffer before processing it. */ | |
3916 | copy = *event; | |
beecf6a1 | 3917 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3918 | input_pending = readable_events (0); |
90c2bb0c | 3919 | x_handle_selection_clear (©); |
598a9fa7 JB |
3920 | #else |
3921 | /* We're getting selection request events, but we don't have | |
3922 | a window system. */ | |
3923 | abort (); | |
3924 | #endif | |
48e416d4 | 3925 | } |
e0f712ba | 3926 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3927 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3928 | { |
bbdc2092 RS |
3929 | /* Make an event (delete-frame (FRAME)). */ |
3930 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3931 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3932 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3933 | } |
1a578e9b AC |
3934 | #endif |
3935 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
3b8f9651 | 3936 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
3937 | { |
3938 | /* Make an event (iconify-frame (FRAME)). */ | |
3939 | obj = Fcons (event->frame_or_window, Qnil); | |
3940 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3941 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3942 | } |
3b8f9651 | 3943 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
3944 | { |
3945 | /* Make an event (make-frame-visible (FRAME)). */ | |
3946 | obj = Fcons (event->frame_or_window, Qnil); | |
3947 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3948 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3949 | } |
3950 | #endif | |
3b8f9651 | 3951 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
3952 | { |
3953 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3954 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3955 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3956 | } |
488dd4c4 JD |
3957 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
3958 | || defined (USE_GTK) | |
3b8f9651 | 3959 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
3960 | { |
3961 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3962 | input_pending = readable_events (0); |
e649d076 RS |
3963 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3964 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3965 | } |
1161d367 GV |
3966 | #endif |
3967 | #ifdef WINDOWSNT | |
3b8f9651 | 3968 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
3969 | { |
3970 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3971 | obj = Fcons (event->modifiers, Qnil); | |
15fdc2e3 | 3972 | obj = Fcons (event->code, obj); |
1161d367 GV |
3973 | obj = Fcons (event->frame_or_window, obj); |
3974 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3975 | kbd_fetch_ptr = event + 1; | |
3976 | } | |
099787c1 | 3977 | #endif |
3b8f9651 | 3978 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
3979 | { |
3980 | obj = Fcons (Qsave_session, Qnil); | |
3981 | kbd_fetch_ptr = event + 1; | |
3982 | } | |
a612e298 | 3983 | /* Just discard these, by returning nil. |
c5fdd383 | 3984 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3985 | when we need to randomly delete events from the queue. |
3986 | (They shouldn't otherwise be found in the buffer, | |
3987 | but on some machines it appears they do show up | |
c5fdd383 | 3988 | even without MULTI_KBOARD.) */ |
3b8f9651 | 3989 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 3990 | mouse events during a popup-menu call. */ |
3b8f9651 | 3991 | else if (event->kind == NO_EVENT) |
beecf6a1 | 3992 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3993 | else if (event->kind == HELP_EVENT) |
3994 | { | |
2190735a | 3995 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3996 | |
8dfd92c9 GM |
3997 | frame = event->frame_or_window; |
3998 | object = event->arg; | |
2e1a49ad SM |
3999 | position = make_number (event->code); |
4000 | window = event->x; | |
4001 | help = event->y; | |
0bbfdc25 | 4002 | clear_event (event); |
e4457b09 GM |
4003 | |
4004 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4005 | if (!WINDOWP (window)) |
4006 | window = Qnil; | |
4007 | obj = Fcons (Qhelp_echo, | |
4008 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4009 | } |
c51c7093 GM |
4010 | else if (event->kind == FOCUS_IN_EVENT) |
4011 | { | |
4012 | /* Notification of a FocusIn event. The frame receiving the | |
4013 | focus is in event->frame_or_window. Generate a | |
4014 | switch-frame event if necessary. */ | |
4015 | Lisp_Object frame, focus; | |
4016 | ||
4017 | frame = event->frame_or_window; | |
4018 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4019 | if (FRAMEP (focus)) | |
4020 | frame = focus; | |
4021 | ||
4022 | if (!EQ (frame, internal_last_event_frame) | |
4023 | && !EQ (frame, selected_frame)) | |
4024 | obj = make_lispy_switch_frame (frame); | |
4025 | internal_last_event_frame = frame; | |
4026 | kbd_fetch_ptr = event + 1; | |
4027 | } | |
1e12dd87 RS |
4028 | else |
4029 | { | |
c51c7093 GM |
4030 | /* If this event is on a different frame, return a switch-frame this |
4031 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4032 | Lisp_Object frame; |
1e12dd87 | 4033 | Lisp_Object focus; |
7b4aedb9 | 4034 | |
9b8eb840 | 4035 | frame = event->frame_or_window; |
2470a66f | 4036 | if (CONSP (frame)) |
7539e11f | 4037 | frame = XCAR (frame); |
2470a66f | 4038 | else if (WINDOWP (frame)) |
1e12dd87 | 4039 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4040 | |
1e12dd87 RS |
4041 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4042 | if (! NILP (focus)) | |
4043 | frame = focus; | |
07d2b8de | 4044 | |
4c52b668 | 4045 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4046 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4047 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4048 | internal_last_event_frame = frame; |
4bb994d1 | 4049 | |
1e12dd87 RS |
4050 | /* If we didn't decide to make a switch-frame event, go ahead |
4051 | and build a real event from the queue entry. */ | |
cd21b839 | 4052 | |
1e12dd87 RS |
4053 | if (NILP (obj)) |
4054 | { | |
4055 | obj = make_lispy_event (event); | |
c60ee5e7 | 4056 | |
488dd4c4 JD |
4057 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \ |
4058 | || defined (USE_GTK) | |
83d68044 KH |
4059 | /* If this was a menu selection, then set the flag to inhibit |
4060 | writing to last_nonmenu_event. Don't do this if the event | |
4061 | we're returning is (menu-bar), though; that indicates the | |
4062 | beginning of the menu sequence, and we might as well leave | |
4063 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4064 | if (used_mouse_menu |
4065 | && !EQ (event->frame_or_window, event->arg) | |
4066 | && (event->kind == MENU_BAR_EVENT | |
4067 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4068 | *used_mouse_menu = 1; |
4069 | #endif | |
1e12dd87 RS |
4070 | |
4071 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4072 | clear_event (event); |
beecf6a1 | 4073 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4074 | } |
4bb994d1 | 4075 | } |
284f4730 | 4076 | } |
2eb6bfbe | 4077 | #ifdef HAVE_MOUSE |
a612e298 | 4078 | /* Try generating a mouse motion event. */ |
f3253854 | 4079 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4080 | { |
f3253854 | 4081 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4082 | Lisp_Object bar_window; |
3c370943 | 4083 | enum scroll_bar_part part; |
e5d77022 JB |
4084 | Lisp_Object x, y; |
4085 | unsigned long time; | |
284f4730 | 4086 | |
c5fdd383 | 4087 | *kbp = current_kboard; |
e177ac3a RS |
4088 | /* Note that this uses F to determine which display to look at. |
4089 | If there is no valid info, it does not store anything | |
4090 | so x remains nil. */ | |
4091 | x = Qnil; | |
dd26ab75 | 4092 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
4093 | |
4094 | obj = Qnil; | |
284f4730 | 4095 | |
4bb994d1 JB |
4096 | /* Decide if we should generate a switch-frame event. Don't |
4097 | generate switch-frame events for motion outside of all Emacs | |
4098 | frames. */ | |
e177ac3a | 4099 | if (!NILP (x) && f) |
cd21b839 | 4100 | { |
9b8eb840 | 4101 | Lisp_Object frame; |
4bb994d1 | 4102 | |
9b8eb840 | 4103 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4104 | if (NILP (frame)) |
18cd2eeb | 4105 | XSETFRAME (frame, f); |
4bb994d1 | 4106 | |
4c52b668 | 4107 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4108 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4109 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4110 | internal_last_event_frame = frame; |
cd21b839 | 4111 | } |
4bb994d1 | 4112 | |
df0f2ba1 | 4113 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4114 | return a mouse-motion event. */ |
e177ac3a | 4115 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4116 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4117 | } |
2eb6bfbe | 4118 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
4119 | else |
4120 | /* We were promised by the above while loop that there was | |
4121 | something for us to read! */ | |
4122 | abort (); | |
4123 | ||
d9d4c147 | 4124 | input_pending = readable_events (0); |
284f4730 | 4125 | |
4c52b668 | 4126 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4127 | |
284f4730 JB |
4128 | return (obj); |
4129 | } | |
a612e298 RS |
4130 | \f |
4131 | /* Process any events that are not user-visible, | |
4132 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4133 | |
4134 | void | |
d9d4c147 KH |
4135 | swallow_events (do_display) |
4136 | int do_display; | |
3a3b9632 | 4137 | { |
87dd9b9b RS |
4138 | int old_timers_run; |
4139 | ||
beecf6a1 | 4140 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4141 | { |
4142 | struct input_event *event; | |
4143 | ||
beecf6a1 KH |
4144 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4145 | ? kbd_fetch_ptr | |
4146 | : kbd_buffer); | |
3a3b9632 RS |
4147 | |
4148 | last_event_timestamp = event->timestamp; | |
4149 | ||
4150 | /* These two kinds of events get special handling | |
4151 | and don't actually appear to the command loop. */ | |
3b8f9651 | 4152 | if (event->kind == SELECTION_REQUEST_EVENT) |
3a3b9632 RS |
4153 | { |
4154 | #ifdef HAVE_X11 | |
4581e928 | 4155 | struct input_event copy; |
e0301c07 RS |
4156 | |
4157 | /* Remove it from the buffer before processing it, | |
4158 | since otherwise swallow_events called recursively could see it | |
4159 | and process it again. */ | |
4581e928 | 4160 | copy = *event; |
beecf6a1 | 4161 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4162 | input_pending = readable_events (0); |
4581e928 | 4163 | x_handle_selection_request (©); |
3a3b9632 RS |
4164 | #else |
4165 | /* We're getting selection request events, but we don't have | |
4166 | a window system. */ | |
4167 | abort (); | |
4168 | #endif | |
4169 | } | |
4170 | ||
3b8f9651 | 4171 | else if (event->kind == SELECTION_CLEAR_EVENT) |
3a3b9632 RS |
4172 | { |
4173 | #ifdef HAVE_X11 | |
e0301c07 RS |
4174 | struct input_event copy; |
4175 | ||
4176 | /* Remove it from the buffer before processing it, */ | |
4177 | copy = *event; | |
4178 | ||
beecf6a1 | 4179 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4180 | input_pending = readable_events (0); |
90c2bb0c | 4181 | x_handle_selection_clear (©); |
3a3b9632 RS |
4182 | #else |
4183 | /* We're getting selection request events, but we don't have | |
4184 | a window system. */ | |
4185 | abort (); | |
4186 | #endif | |
4187 | } | |
4188 | else | |
4189 | break; | |
4190 | } | |
4191 | ||
87dd9b9b | 4192 | old_timers_run = timers_run; |
d9d4c147 | 4193 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
4194 | |
4195 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4196 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4197 | } |
a612e298 | 4198 | \f |
d9d4c147 KH |
4199 | /* Record the start of when Emacs is idle, |
4200 | for the sake of running idle-time timers. */ | |
4201 | ||
07a59269 | 4202 | void |
d9d4c147 KH |
4203 | timer_start_idle () |
4204 | { | |
4205 | Lisp_Object timers; | |
4206 | ||
4207 | /* If we are already in the idle state, do nothing. */ | |
4208 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4209 | return; | |
4210 | ||
4211 | EMACS_GET_TIME (timer_idleness_start_time); | |
4212 | ||
3021d3a9 RS |
4213 | timer_last_idleness_start_time = timer_idleness_start_time; |
4214 | ||
d9d4c147 | 4215 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4216 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4217 | { |
4218 | Lisp_Object timer; | |
4219 | ||
7539e11f | 4220 | timer = XCAR (timers); |
d9d4c147 KH |
4221 | |
4222 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4223 | continue; | |
4224 | XVECTOR (timer)->contents[0] = Qnil; | |
4225 | } | |
4226 | } | |
4227 | ||
4228 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4229 | ||
07a59269 | 4230 | void |
d9d4c147 KH |
4231 | timer_stop_idle () |
4232 | { | |
4233 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4234 | } | |
4235 | ||
e044e87c RS |
4236 | /* This is only for debugging. */ |
4237 | struct input_event last_timer_event; | |
4238 | ||
c04cbc3b RS |
4239 | /* Check whether a timer has fired. To prevent larger problems we simply |
4240 | disregard elements that are not proper timers. Do not make a circular | |
4241 | timer list for the time being. | |
4242 | ||
4243 | Returns the number of seconds to wait until the next timer fires. If a | |
4244 | timer is triggering now, return zero seconds. | |
4245 | If no timer is active, return -1 seconds. | |
4246 | ||
4ec4ed6a RS |
4247 | If a timer is ripe, we run it, with quitting turned off. |
4248 | ||
4249 | DO_IT_NOW is now ignored. It used to mean that we should | |
4250 | run the timer directly instead of queueing a timer-event. | |
4251 | Now we always run timers directly. */ | |
c04cbc3b RS |
4252 | |
4253 | EMACS_TIME | |
4254 | timer_check (do_it_now) | |
4255 | int do_it_now; | |
4256 | { | |
4257 | EMACS_TIME nexttime; | |
9291c072 RS |
4258 | EMACS_TIME now, idleness_now; |
4259 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4260 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4261 | |
c04cbc3b RS |
4262 | EMACS_SET_SECS (nexttime, -1); |
4263 | EMACS_SET_USECS (nexttime, -1); | |
4264 | ||
9291c072 | 4265 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4266 | timers = Vtimer_list; |
9291c072 RS |
4267 | /* Consider the idle timers only if Emacs is idle. */ |
4268 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4269 | idle_timers = Vtimer_idle_list; | |
4270 | else | |
4271 | idle_timers = Qnil; | |
4272 | chosen_timer = Qnil; | |
4273 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4274 | |
9291c072 | 4275 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4276 | { |
9291c072 RS |
4277 | EMACS_GET_TIME (now); |
4278 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4279 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4280 | } | |
c04cbc3b | 4281 | |
9291c072 RS |
4282 | while (CONSP (timers) || CONSP (idle_timers)) |
4283 | { | |
9291c072 | 4284 | Lisp_Object *vector; |
8c907a56 | 4285 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4286 | EMACS_TIME timer_time, idle_timer_time; |
4287 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4288 | ||
4289 | /* Skip past invalid timers and timers already handled. */ | |
4290 | if (!NILP (timers)) | |
c04cbc3b | 4291 | { |
7539e11f | 4292 | timer = XCAR (timers); |
9291c072 RS |
4293 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4294 | { | |
7539e11f | 4295 | timers = XCDR (timers); |
9291c072 RS |
4296 | continue; |
4297 | } | |
4298 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4299 | |
9291c072 RS |
4300 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4301 | || !INTEGERP (vector[3]) | |
4302 | || ! NILP (vector[0])) | |
4303 | { | |
7539e11f | 4304 | timers = XCDR (timers); |
9291c072 RS |
4305 | continue; |
4306 | } | |
4307 | } | |
4308 | if (!NILP (idle_timers)) | |
4309 | { | |
7539e11f | 4310 | timer = XCAR (idle_timers); |
d9d4c147 | 4311 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4312 | { |
7539e11f | 4313 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4314 | continue; |
4315 | } | |
d9d4c147 KH |
4316 | vector = XVECTOR (timer)->contents; |
4317 | ||
4318 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4319 | || !INTEGERP (vector[3]) |
4320 | || ! NILP (vector[0])) | |
4321 | { | |
7539e11f | 4322 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4323 | continue; |
4324 | } | |
4325 | } | |
d9d4c147 | 4326 | |
9291c072 RS |
4327 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4328 | based on the next ordinary timer. | |
4329 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4330 | this timer becomes ripe (negative if it's already ripe). */ | |
4331 | if (!NILP (timers)) | |
4332 | { | |
7539e11f | 4333 | timer = XCAR (timers); |
9291c072 | 4334 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4335 | EMACS_SET_SECS (timer_time, |
4336 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4337 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4338 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4339 | } | |
ba8dfba8 | 4340 | |
9291c072 RS |
4341 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4342 | based on the next idle timer. */ | |
4343 | if (!NILP (idle_timers)) | |
4344 | { | |
7539e11f | 4345 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4346 | vector = XVECTOR (idle_timer)->contents; |
4347 | EMACS_SET_SECS (idle_timer_time, | |
4348 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4349 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4350 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4351 | } | |
ba8dfba8 | 4352 | |
9291c072 RS |
4353 | /* Decide which timer is the next timer, |
4354 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4355 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4356 | |
9291c072 RS |
4357 | if (! NILP (timers) && ! NILP (idle_timers)) |
4358 | { | |
4359 | EMACS_TIME temp; | |
4360 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4361 | if (EMACS_TIME_NEG_P (temp)) | |
4362 | { | |
4363 | chosen_timer = timer; | |
7539e11f | 4364 | timers = XCDR (timers); |
9291c072 | 4365 | difference = timer_difference; |
c04cbc3b | 4366 | } |
d9d4c147 | 4367 | else |
d9d4c147 | 4368 | { |
9291c072 | 4369 | chosen_timer = idle_timer; |
7539e11f | 4370 | idle_timers = XCDR (idle_timers); |
9291c072 | 4371 | difference = idle_timer_difference; |
d9d4c147 | 4372 | } |
7ea13e12 | 4373 | } |
9291c072 RS |
4374 | else if (! NILP (timers)) |
4375 | { | |
4376 | chosen_timer = timer; | |
7539e11f | 4377 | timers = XCDR (timers); |
9291c072 RS |
4378 | difference = timer_difference; |
4379 | } | |
4380 | else | |
4381 | { | |
4382 | chosen_timer = idle_timer; | |
7539e11f | 4383 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4384 | difference = idle_timer_difference; |
4385 | } | |
4386 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4387 | |
bd55b860 | 4388 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4389 | if (EMACS_TIME_NEG_P (difference) |
4390 | || (EMACS_SECS (difference) == 0 | |
4391 | && EMACS_USECS (difference) == 0)) | |
4392 | { | |
4393 | if (NILP (vector[0])) | |
4394 | { | |
d925fb39 | 4395 | int was_locked = single_kboard; |
331379bf | 4396 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4397 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4398 | |
9291c072 RS |
4399 | /* Mark the timer as triggered to prevent problems if the lisp |
4400 | code fails to reschedule it right. */ | |
4401 | vector[0] = Qt; | |
4402 | ||
d925fb39 | 4403 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4404 | |
d925fb39 | 4405 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4406 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4407 | timers_run++; |
d925fb39 | 4408 | unbind_to (count, Qnil); |
4ec4ed6a | 4409 | |
d925fb39 RS |
4410 | /* Resume allowing input from any kboard, if that was true before. */ |
4411 | if (!was_locked) | |
4412 | any_kboard_state (); | |
9291c072 | 4413 | |
d925fb39 RS |
4414 | /* Since we have handled the event, |
4415 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4416 | } |
4417 | } | |
4418 | else | |
4419 | /* When we encounter a timer that is still waiting, | |
4420 | return the amount of time to wait before it is ripe. */ | |
4421 | { | |
4422 | UNGCPRO; | |
9291c072 RS |
4423 | return difference; |
4424 | } | |
c04cbc3b | 4425 | } |
9291c072 | 4426 | |
7ea13e12 RS |
4427 | /* No timers are pending in the future. */ |
4428 | /* Return 0 if we generated an event, and -1 if not. */ | |
4429 | UNGCPRO; | |
c04cbc3b RS |
4430 | return nexttime; |
4431 | } | |
4432 | \f | |
284f4730 | 4433 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4434 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4435 | static Lisp_Object func_key_syms; |
4436 | static Lisp_Object mouse_syms; | |
8006e4bb | 4437 | static Lisp_Object wheel_syms; |
a24dc617 | 4438 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4439 | |
e9bf89a0 RS |
4440 | /* This is a list of keysym codes for special "accent" characters. |
4441 | It parallels lispy_accent_keys. */ | |
4442 | ||
4443 | static int lispy_accent_codes[] = | |
4444 | { | |
79a7046c | 4445 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4446 | XK_dead_circumflex, |
79a7046c RS |
4447 | #else |
4448 | 0, | |
4449 | #endif | |
4450 | #ifdef XK_dead_grave | |
e9bf89a0 | 4451 | XK_dead_grave, |
79a7046c RS |
4452 | #else |
4453 | 0, | |
4454 | #endif | |
4455 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4456 | XK_dead_tilde, |
79a7046c RS |
4457 | #else |
4458 | 0, | |
4459 | #endif | |
4460 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4461 | XK_dead_diaeresis, |
79a7046c RS |
4462 | #else |
4463 | 0, | |
4464 | #endif | |
4465 | #ifdef XK_dead_macron | |
e9bf89a0 | 4466 | XK_dead_macron, |
79a7046c RS |
4467 | #else |
4468 | 0, | |
4469 | #endif | |
4470 | #ifdef XK_dead_degree | |
e9bf89a0 | 4471 | XK_dead_degree, |
79a7046c RS |
4472 | #else |
4473 | 0, | |
4474 | #endif | |
4475 | #ifdef XK_dead_acute | |
e9bf89a0 | 4476 | XK_dead_acute, |
79a7046c RS |
4477 | #else |
4478 | 0, | |
4479 | #endif | |
4480 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4481 | XK_dead_cedilla, |
79a7046c RS |
4482 | #else |
4483 | 0, | |
4484 | #endif | |
4485 | #ifdef XK_dead_breve | |
e9bf89a0 | 4486 | XK_dead_breve, |
79a7046c RS |
4487 | #else |
4488 | 0, | |
4489 | #endif | |
4490 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4491 | XK_dead_ogonek, |
79a7046c RS |
4492 | #else |
4493 | 0, | |
4494 | #endif | |
4495 | #ifdef XK_dead_caron | |
e9bf89a0 | 4496 | XK_dead_caron, |
79a7046c RS |
4497 | #else |
4498 | 0, | |
4499 | #endif | |
4500 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4501 | XK_dead_doubleacute, |
79a7046c RS |
4502 | #else |
4503 | 0, | |
4504 | #endif | |
4505 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4506 | XK_dead_abovedot, |
79a7046c RS |
4507 | #else |
4508 | 0, | |
4509 | #endif | |
ed3230db DL |
4510 | #ifdef XK_dead_abovering |
4511 | XK_dead_abovering, | |
4512 | #else | |
4513 | 0, | |
4514 | #endif | |
4515 | #ifdef XK_dead_iota | |
4516 | XK_dead_iota, | |
4517 | #else | |
4518 | 0, | |
4519 | #endif | |
4520 | #ifdef XK_dead_belowdot | |
4521 | XK_dead_belowdot, | |
4522 | #else | |
4523 | 0, | |
4524 | #endif | |
4525 | #ifdef XK_dead_voiced_sound | |
4526 | XK_dead_voiced_sound, | |
4527 | #else | |
4528 | 0, | |
4529 | #endif | |
4530 | #ifdef XK_dead_semivoiced_sound | |
4531 | XK_dead_semivoiced_sound, | |
4532 | #else | |
4533 | 0, | |
4534 | #endif | |
4535 | #ifdef XK_dead_hook | |
4536 | XK_dead_hook, | |
4537 | #else | |
4538 | 0, | |
4539 | #endif | |
4540 | #ifdef XK_dead_horn | |
4541 | XK_dead_horn, | |
4542 | #else | |
4543 | 0, | |
4544 | #endif | |
e9bf89a0 RS |
4545 | }; |
4546 | ||
4547 | /* This is a list of Lisp names for special "accent" characters. | |
4548 | It parallels lispy_accent_codes. */ | |
4549 | ||
4550 | static char *lispy_accent_keys[] = | |
4551 | { | |
4552 | "dead-circumflex", | |
4553 | "dead-grave", | |
4554 | "dead-tilde", | |
4555 | "dead-diaeresis", | |
4556 | "dead-macron", | |
4557 | "dead-degree", | |
4558 | "dead-acute", | |
4559 | "dead-cedilla", | |
4560 | "dead-breve", | |
4561 | "dead-ogonek", | |
4562 | "dead-caron", | |
4563 | "dead-doubleacute", | |
4564 | "dead-abovedot", | |
ed3230db DL |
4565 | "dead-abovering", |
4566 | "dead-iota", | |
4567 | "dead-belowdot", | |
4568 | "dead-voiced-sound", | |
4569 | "dead-semivoiced-sound", | |
4570 | "dead-hook", | |
4571 | "dead-horn", | |
e9bf89a0 RS |
4572 | }; |
4573 | ||
e98a93eb GV |
4574 | #ifdef HAVE_NTGUI |
4575 | #define FUNCTION_KEY_OFFSET 0x0 | |
4576 | ||
4577 | char *lispy_function_keys[] = | |
4578 | { | |
4579 | 0, /* 0 */ | |
c60ee5e7 | 4580 | |
e98a93eb GV |
4581 | 0, /* VK_LBUTTON 0x01 */ |
4582 | 0, /* VK_RBUTTON 0x02 */ | |
4583 | "cancel", /* VK_CANCEL 0x03 */ | |
4584 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4585 | |
e98a93eb | 4586 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4587 | |
e98a93eb GV |
4588 | "backspace", /* VK_BACK 0x08 */ |
4589 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4590 | |
e98a93eb | 4591 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4592 | |
e98a93eb GV |
4593 | "clear", /* VK_CLEAR 0x0C */ |
4594 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4595 | |
e98a93eb | 4596 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4597 | |
1161d367 GV |
4598 | 0, /* VK_SHIFT 0x10 */ |
4599 | 0, /* VK_CONTROL 0x11 */ | |
4600 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4601 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4602 | "capslock", /* VK_CAPITAL 0x14 */ |
c60ee5e7 | 4603 | |
e98a93eb | 4604 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ |
c60ee5e7 | 4605 | |
1161d367 | 4606 | "escape", /* VK_ESCAPE 0x1B */ |
c60ee5e7 | 4607 | |
e98a93eb | 4608 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ |
c60ee5e7 | 4609 | |
e98a93eb GV |
4610 | 0, /* VK_SPACE 0x20 */ |
4611 | "prior", /* VK_PRIOR 0x21 */ | |
4612 | "next", /* VK_NEXT 0x22 */ | |
4613 | "end", /* VK_END 0x23 */ | |
4614 | "home", /* VK_HOME 0x24 */ | |
4615 | "left", /* VK_LEFT 0x25 */ | |
4616 | "up", /* VK_UP 0x26 */ | |
4617 | "right", /* VK_RIGHT 0x27 */ | |
4618 | "down", /* VK_DOWN 0x28 */ | |
4619 | "select", /* VK_SELECT 0x29 */ | |
4620 | "print", /* VK_PRINT 0x2A */ | |
4621 | "execute", /* VK_EXECUTE 0x2B */ | |
4622 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4623 | "insert", /* VK_INSERT 0x2D */ | |
4624 | "delete", /* VK_DELETE 0x2E */ | |
4625 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4626 | |
e98a93eb | 4627 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4628 | |
e98a93eb | 4629 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4630 | |
e98a93eb | 4631 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4632 | |
e98a93eb | 4633 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4634 | |
4635 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4636 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4637 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4638 | |
e376f90d RS |
4639 | "lwindow", /* VK_LWIN 0x5B */ |
4640 | "rwindow", /* VK_RWIN 0x5C */ | |
4641 | "apps", /* VK_APPS 0x5D */ | |
c60ee5e7 | 4642 | |
e98a93eb | 4643 | 0, 0, /* 0x5E .. 0x5F */ |
c60ee5e7 | 4644 | |
e98a93eb GV |
4645 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4646 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4647 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4648 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4649 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4650 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4651 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4652 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4653 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4654 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4655 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4656 | "kp-add", /* VK_ADD 0x6B */ | |
4657 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4658 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4659 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4660 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4661 | "f1", /* VK_F1 0x70 */ | |
4662 | "f2", /* VK_F2 0x71 */ | |
4663 | "f3", /* VK_F3 0x72 */ | |
4664 | "f4", /* VK_F4 0x73 */ | |
4665 | "f5", /* VK_F5 0x74 */ | |
4666 | "f6", /* VK_F6 0x75 */ | |
4667 | "f7", /* VK_F7 0x76 */ | |
4668 | "f8", /* VK_F8 0x77 */ | |
4669 | "f9", /* VK_F9 0x78 */ | |
4670 | "f10", /* VK_F10 0x79 */ | |
4671 | "f11", /* VK_F11 0x7A */ | |
4672 | "f12", /* VK_F12 0x7B */ | |
4673 | "f13", /* VK_F13 0x7C */ | |
4674 | "f14", /* VK_F14 0x7D */ | |
4675 | "f15", /* VK_F15 0x7E */ | |
4676 | "f16", /* VK_F16 0x7F */ | |
4677 | "f17", /* VK_F17 0x80 */ | |
4678 | "f18", /* VK_F18 0x81 */ | |
4679 | "f19", /* VK_F19 0x82 */ | |
4680 | "f20", /* VK_F20 0x83 */ | |
4681 | "f21", /* VK_F21 0x84 */ | |
4682 | "f22", /* VK_F22 0x85 */ | |
4683 | "f23", /* VK_F23 0x86 */ | |
4684 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4685 | |
e98a93eb GV |
4686 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4687 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4688 | |
e98a93eb GV |
4689 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4690 | "scroll", /* VK_SCROLL 0x91 */ | |
c60ee5e7 | 4691 | |
e376f90d RS |
4692 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4693 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4694 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4695 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4696 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4697 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4698 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4699 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4700 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4701 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4702 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4703 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4704 | ||
4705 | 0, 0, /* 0x9E .. 0x9F */ | |
4706 | ||
e98a93eb GV |
4707 | /* |
4708 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4709 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4710 | * No other API or message will distinguish left and right keys this way. |
4711 | */ | |
4712 | /* 0xA0 .. 0xEF */ | |
c60ee5e7 | 4713 | |
e98a93eb GV |
4714 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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, | |
c60ee5e7 | 4719 | |
e98a93eb | 4720 | /* 0xF0 .. 0xF5 */ |
c60ee5e7 | 4721 | |
e98a93eb | 4722 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4723 | |
e98a93eb GV |
4724 | "attn", /* VK_ATTN 0xF6 */ |
4725 | "crsel", /* VK_CRSEL 0xF7 */ | |
4726 | "exsel", /* VK_EXSEL 0xF8 */ | |
4727 | "ereof", /* VK_EREOF 0xF9 */ | |
4728 | "play", /* VK_PLAY 0xFA */ | |
4729 | "zoom", /* VK_ZOOM 0xFB */ | |
4730 | "noname", /* VK_NONAME 0xFC */ | |
4731 | "pa1", /* VK_PA1 0xFD */ | |
4732 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4733 | 0 /* 0xFF */ |
e98a93eb GV |
4734 | }; |
4735 | ||
04f215f0 | 4736 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4737 | |
ed3230db DL |
4738 | /* This should be dealt with in XTread_socket now, and that doesn't |
4739 | depend on the client system having the Kana syms defined. See also | |
4740 | the XK_kana_A case below. */ | |
4741 | #if 0 | |
37cd9f30 KH |
4742 | #ifdef XK_kana_A |
4743 | static char *lispy_kana_keys[] = | |
4744 | { | |
4745 | /* X Keysym value */ | |
4746 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4747 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4748 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4749 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4750 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4751 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4752 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4753 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4754 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4755 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 4756 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
4757 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
4758 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4759 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4760 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4761 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4762 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4763 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4764 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4765 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4766 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4767 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4768 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4769 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4770 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4771 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4772 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4773 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4774 | }; | |
4775 | #endif /* XK_kana_A */ | |
ed3230db | 4776 | #endif /* 0 */ |
37cd9f30 | 4777 | |
04f215f0 RS |
4778 | #define FUNCTION_KEY_OFFSET 0xff00 |
4779 | ||
284f4730 JB |
4780 | /* You'll notice that this table is arranged to be conveniently |
4781 | indexed by X Windows keysym values. */ | |
4782 | static char *lispy_function_keys[] = | |
4783 | { | |
4784 | /* X Keysym value */ | |
4785 | ||
75045dcb RS |
4786 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4787 | "backspace", "tab", "linefeed", "clear", | |
4788 | 0, "return", 0, 0, | |
4789 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4790 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4791 | 0, 0, 0, 0, |
75045dcb RS |
4792 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4793 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4794 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4795 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4796 | "eisu-toggle", /* 0xff30...3f */ | |
4797 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4798 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4799 | ||
75045dcb RS |
4800 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4801 | "down", "prior", "next", "end", | |
4802 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4803 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4804 | "print", | |
4805 | "execute", | |
4806 | "insert", | |
4807 | 0, /* 0xff64 */ | |
4808 | "undo", | |
4809 | "redo", | |
4810 | "menu", | |
4811 | "find", | |
4812 | "cancel", | |
4813 | "help", | |
4814 | "break", /* 0xff6b */ | |
4815 | ||
75045dcb RS |
4816 | 0, 0, 0, 0, |
4817 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4818 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4819 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4820 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4821 | "kp-tab", /* 0xff89 */ | |
4822 | 0, 0, 0, | |
4823 | "kp-enter", /* 0xff8d */ | |
4824 | 0, 0, 0, | |
4825 | "kp-f1", /* 0xff91 */ | |
4826 | "kp-f2", | |
4827 | "kp-f3", | |
4828 | "kp-f4", | |
872157e7 RS |
4829 | "kp-home", /* 0xff95 */ |
4830 | "kp-left", | |
4831 | "kp-up", | |
4832 | "kp-right", | |
4833 | "kp-down", | |
4834 | "kp-prior", /* kp-page-up */ | |
4835 | "kp-next", /* kp-page-down */ | |
4836 | "kp-end", | |
4837 | "kp-begin", | |
4838 | "kp-insert", | |
4839 | "kp-delete", | |
4840 | 0, /* 0xffa0 */ | |
4841 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4842 | "kp-multiply", /* 0xffaa */ |
4843 | "kp-add", | |
4844 | "kp-separator", | |
4845 | "kp-subtract", | |
4846 | "kp-decimal", | |
4847 | "kp-divide", /* 0xffaf */ | |
4848 | "kp-0", /* 0xffb0 */ | |
4849 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4850 | 0, /* 0xffba */ | |
4851 | 0, 0, | |
4852 | "kp-equal", /* 0xffbd */ | |
4853 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4854 | "f2", |
4855 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4856 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4857 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4858 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4859 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4860 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4861 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4862 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4863 | }; |
284f4730 | 4864 | |
04f215f0 RS |
4865 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4866 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4867 | ||
4868 | static char *iso_lispy_function_keys[] = | |
4869 | { | |
4870 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4871 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4872 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4873 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4874 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
4875 | "iso-move-line-up", "iso-move-line-down", |
4876 | "iso-partial-line-up", "iso-partial-line-down", | |
4877 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
4878 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
4879 | "iso-release-margin-left", "iso-release-margin-right", | |
4880 | "iso-release-both-margins", | |
4881 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4882 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4883 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4884 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4885 | }; | |
4886 | ||
4887 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4888 | |
8e1e4240 | 4889 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4890 | |
8006e4bb JR |
4891 | static char *lispy_wheel_names[] = |
4892 | { | |
4893 | "wheel-up", "wheel-down" | |
4894 | }; | |
4895 | ||
a24dc617 RS |
4896 | /* drag-n-drop events are generated when a set of selected files are |
4897 | dragged from another application and dropped onto an Emacs window. */ | |
4898 | static char *lispy_drag_n_drop_names[] = | |
4899 | { | |
4900 | "drag-n-drop" | |
4901 | }; | |
4902 | ||
3c370943 | 4903 | /* Scroll bar parts. */ |
4bb994d1 | 4904 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4905 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4906 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4907 | |
3c370943 JB |
4908 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4909 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4910 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4911 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4912 | }; |
4913 | ||
5bf68f6e AS |
4914 | /* User signal events. */ |
4915 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4916 | ||
4917 | Lisp_Object *lispy_user_signals[] = | |
4918 | { | |
4919 | &Qusr1_signal, &Qusr2_signal | |
4920 | }; | |
4921 | ||
4bb994d1 | 4922 | |
7b4aedb9 | 4923 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4924 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4925 | |
4926 | The elements have the form | |
4927 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4928 | where REST is the cdr of a position as it would be reported in the event. | |
4929 | ||
4930 | The make_lispy_event function stores positions here to tell the | |
4931 | difference between click and drag events, and to store the starting | |
4932 | location to be included in drag events. */ | |
4933 | ||
4934 | static Lisp_Object button_down_location; | |
88cb0656 | 4935 | |
fbcd35bd JB |
4936 | /* Information about the most recent up-going button event: Which |
4937 | button, what location, and what time. */ | |
4938 | ||
559f9d04 RS |
4939 | static int last_mouse_button; |
4940 | static int last_mouse_x; | |
4941 | static int last_mouse_y; | |
4942 | static unsigned long button_down_time; | |
fbcd35bd | 4943 | |
222d557c GM |
4944 | /* The maximum time between clicks to make a double-click, or Qnil to |
4945 | disable double-click detection, or Qt for no time limit. */ | |
4946 | ||
564dc952 | 4947 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 4948 | |
222d557c GM |
4949 | /* Maximum number of pixels the mouse may be moved between clicks |
4950 | to make a double-click. */ | |
4951 | ||
31ade731 | 4952 | EMACS_INT double_click_fuzz; |
222d557c | 4953 | |
fbcd35bd JB |
4954 | /* The number of clicks in this multiple-click. */ |
4955 | ||
4956 | int double_click_count; | |
4957 | ||
284f4730 JB |
4958 | /* Given a struct input_event, build the lisp event which represents |
4959 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4960 | movement buffer, which should have a movement event in it. |
4961 | ||
4962 | Note that events must be passed to this function in the order they | |
4963 | are received; this function stores the location of button presses | |
4964 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4965 | |
4966 | static Lisp_Object | |
4967 | make_lispy_event (event) | |
4968 | struct input_event *event; | |
4969 | { | |
79a7046c RS |
4970 | int i; |
4971 | ||
0220c518 | 4972 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4973 | { |
284f4730 | 4974 | /* A simple keystroke. */ |
3b8f9651 | 4975 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 4976 | { |
9343ab07 | 4977 | Lisp_Object lispy_c; |
e9bf89a0 | 4978 | int c = event->code & 0377; |
5a1c6df8 JB |
4979 | /* Turn ASCII characters into control characters |
4980 | when proper. */ | |
4981 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4982 | c = make_ctrl_char (c); |
4983 | ||
4984 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4985 | just above, and the shift key was taken care of by the X code, | |
4986 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4987 | c |= (event->modifiers |
4988 | & (meta_modifier | alt_modifier | |
4989 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4990 | /* Distinguish Shift-SPC from SPC. */ |
4991 | if ((event->code & 0377) == 040 | |
4992 | && event->modifiers & shift_modifier) | |
4993 | c |= shift_modifier; | |
559f9d04 | 4994 | button_down_time = 0; |
bb9e9bed | 4995 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4996 | return lispy_c; |
86e5706b | 4997 | } |
284f4730 | 4998 | |
3b8f9651 | 4999 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5000 | { |
5001 | Lisp_Object lispy_c; | |
24d80a06 | 5002 | int c = event->code; |
a50e723f | 5003 | |
24d80a06 SM |
5004 | /* Add in the other modifier bits. We took care of ctrl_modifier |
5005 | just above, and the shift key was taken care of by the X code, | |
5006 | and applied to control characters by make_ctrl_char. */ | |
5007 | c |= (event->modifiers | |
5008 | & (meta_modifier | alt_modifier | |
5009 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
5010 | /* What about the `shift' modifier ? */ | |
5011 | button_down_time = 0; | |
5012 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5013 | return lispy_c; |
5014 | } | |
5015 | ||
284f4730 JB |
5016 | /* A function key. The symbol may need to have modifier prefixes |
5017 | tacked onto it. */ | |
3b8f9651 | 5018 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5019 | button_down_time = 0; |
e9bf89a0 RS |
5020 | |
5021 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5022 | if (event->code == lispy_accent_codes[i]) | |
5023 | return modify_event_symbol (i, | |
5024 | event->modifiers, | |
80e4aa30 | 5025 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5026 | lispy_accent_keys, &accent_key_syms, |
5027 | (sizeof (lispy_accent_keys) | |
5028 | / sizeof (lispy_accent_keys[0]))); | |
5029 | ||
ed3230db | 5030 | #if 0 |
37cd9f30 KH |
5031 | #ifdef XK_kana_A |
5032 | if (event->code >= 0x400 && event->code < 0x500) | |
5033 | return modify_event_symbol (event->code - 0x400, | |
5034 | event->modifiers & ~shift_modifier, | |
5035 | Qfunction_key, Qnil, | |
5036 | lispy_kana_keys, &func_key_syms, | |
5037 | (sizeof (lispy_kana_keys) | |
5038 | / sizeof (lispy_kana_keys[0]))); | |
5039 | #endif /* XK_kana_A */ | |
ed3230db | 5040 | #endif /* 0 */ |
37cd9f30 | 5041 | |
111c4138 | 5042 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5043 | if (event->code < FUNCTION_KEY_OFFSET |
5044 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5045 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5046 | event->modifiers, | |
5047 | Qfunction_key, Qnil, | |
5048 | iso_lispy_function_keys, &func_key_syms, | |
5049 | (sizeof (iso_lispy_function_keys) | |
5050 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5051 | #endif |
656280a6 | 5052 | |
4c8bc894 SM |
5053 | /* Handle system-specific or unknown keysyms. */ |
5054 | if (event->code & (1 << 28) | |
5055 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5056 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5057 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5058 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5059 | { |
4c8bc894 SM |
5060 | /* We need to use an alist rather than a vector as the cache |
5061 | since we can't make a vector long enuf. */ | |
5062 | if (NILP (current_kboard->system_key_syms)) | |
5063 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5064 | return modify_event_symbol (event->code, | |
5065 | event->modifiers, | |
5066 | Qfunction_key, | |
5067 | current_kboard->Vsystem_key_alist, | |
5068 | 0, ¤t_kboard->system_key_syms, | |
5069 | (unsigned) -1); | |
656280a6 | 5070 | } |
656280a6 GM |
5071 | |
5072 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5073 | event->modifiers, | |
5074 | Qfunction_key, Qnil, | |
5075 | lispy_function_keys, &func_key_syms, | |
5076 | (sizeof (lispy_function_keys) | |
5077 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5078 | |
514354e9 | 5079 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5080 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5081 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5082 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5083 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5084 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5085 | #endif |
284f4730 | 5086 | { |
e9bf89a0 | 5087 | int button = event->code; |
559f9d04 | 5088 | int is_double; |
7b4aedb9 | 5089 | Lisp_Object position; |
dbc4e1c1 JB |
5090 | Lisp_Object *start_pos_ptr; |
5091 | Lisp_Object start_pos; | |
c5cf2109 | 5092 | Lisp_Object window; |
284f4730 | 5093 | |
8c907a56 GM |
5094 | position = Qnil; |
5095 | ||
7b4aedb9 | 5096 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5097 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5098 | { |
169f857a | 5099 | enum window_part part; |
c5cf2109 | 5100 | struct frame *f = XFRAME (event->frame_or_window); |
7b4aedb9 | 5101 | Lisp_Object posn; |
7ee32cda | 5102 | Lisp_Object string_info = Qnil; |
9e20143a | 5103 | int row, column; |
2cdbe73e | 5104 | int wx, wy; |
9e20143a | 5105 | |
5da3133a RS |
5106 | /* Ignore mouse events that were made on frame that |
5107 | have been deleted. */ | |
5108 | if (! FRAME_LIVE_P (f)) | |
5109 | return Qnil; | |
5110 | ||
7ee32cda GM |
5111 | /* EVENT->x and EVENT->y are frame-relative pixel |
5112 | coordinates at this place. Under old redisplay, COLUMN | |
5113 | and ROW are set to frame relative glyph coordinates | |
5114 | which are then used to determine whether this click is | |
5115 | in a menu (non-toolkit version). */ | |
5116 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5117 | &column, &row, NULL, 1); | |
7b4aedb9 | 5118 | |
488dd4c4 | 5119 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
eef045bf RS |
5120 | /* In the non-toolkit version, clicks on the menu bar |
5121 | are ordinary button events in the event buffer. | |
5122 | Distinguish them, and invoke the menu. | |
5123 | ||
5124 | (In the toolkit version, the toolkit handles the menu bar | |
5125 | and Emacs doesn't know about it until after the user | |
5126 | makes a selection.) */ | |
2ee250ec RS |
5127 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5128 | && (event->modifiers & down_modifier)) | |
bb936752 | 5129 | { |
b7c49376 | 5130 | Lisp_Object items, item; |
0a0e8fe6 RS |
5131 | int hpos; |
5132 | int i; | |
5133 | ||
2ee250ec | 5134 | #if 0 |
0a0e8fe6 RS |
5135 | /* Activate the menu bar on the down event. If the |
5136 | up event comes in before the menu code can deal with it, | |
5137 | just ignore it. */ | |
5138 | if (! (event->modifiers & down_modifier)) | |
5139 | return Qnil; | |
2ee250ec | 5140 | #endif |
0aafc975 | 5141 | |
7ee32cda | 5142 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5143 | item = Qnil; |
5ec75a55 | 5144 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5145 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5146 | { |
5147 | Lisp_Object pos, string; | |
129004d3 GM |
5148 | string = AREF (items, i + 1); |
5149 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5150 | if (NILP (string)) |
5151 | break; | |
9e20143a | 5152 | if (column >= XINT (pos) |
d5db4077 | 5153 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5154 | { |
129004d3 | 5155 | item = AREF (items, i); |
b7c49376 RS |
5156 | break; |
5157 | } | |
5ec75a55 | 5158 | } |
9e20143a | 5159 | |
7ee32cda GM |
5160 | /* ELisp manual 2.4b says (x y) are window relative but |
5161 | code says they are frame-relative. */ | |
5ec75a55 RS |
5162 | position |
5163 | = Fcons (event->frame_or_window, | |
5164 | Fcons (Qmenu_bar, | |
5165 | Fcons (Fcons (event->x, event->y), | |
5166 | Fcons (make_number (event->timestamp), | |
5167 | Qnil)))); | |
5168 | ||
b7c49376 | 5169 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5170 | } |
488dd4c4 | 5171 | #endif /* not USE_X_TOOLKIT && not USE_GTK */ |
0aafc975 | 5172 | |
7ee32cda GM |
5173 | /* Set `window' to the window under frame pixel coordinates |
5174 | event->x/event->y. */ | |
5175 | window = window_from_coordinates (f, XINT (event->x), | |
2cdbe73e KS |
5176 | XINT (event->y), |
5177 | &part, &wx, &wy, 0); | |
0aafc975 | 5178 | |
8c18cbfb | 5179 | if (!WINDOWP (window)) |
78ced549 RS |
5180 | { |
5181 | window = event->frame_or_window; | |
5182 | posn = Qnil; | |
5183 | } | |
284f4730 | 5184 | else |
7b4aedb9 | 5185 | { |
7ee32cda GM |
5186 | /* It's a click in window window at frame coordinates |
5187 | event->x/ event->y. */ | |
5188 | struct window *w = XWINDOW (window); | |
5189 | ||
7ee32cda GM |
5190 | /* Set event coordinates to window-relative coordinates |
5191 | for constructing the Lisp event below. */ | |
5192 | XSETINT (event->x, wx); | |
5193 | XSETINT (event->y, wy); | |
5194 | ||
169f857a | 5195 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
7ee32cda | 5196 | { |
902ae620 | 5197 | /* Mode line or header line. Look for a string under |
7ee32cda GM |
5198 | the mouse that may have a `local-map' property. */ |
5199 | Lisp_Object string; | |
5200 | int charpos; | |
c60ee5e7 | 5201 | |
169f857a KS |
5202 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; |
5203 | string = mode_line_string (w, wx, wy, part, &charpos); | |
7ee32cda GM |
5204 | if (STRINGP (string)) |
5205 | string_info = Fcons (string, make_number (charpos)); | |
5206 | } | |
169f857a | 5207 | else if (part == ON_VERTICAL_BORDER) |
7b4aedb9 | 5208 | posn = Qvertical_line; |
169f857a | 5209 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) |
7d60ad8a GM |
5210 | { |
5211 | int charpos; | |
5212 | Lisp_Object object = marginal_area_string (w, wx, wy, part, | |
5213 | &charpos); | |
169f857a | 5214 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; |
7d60ad8a GM |
5215 | if (STRINGP (object)) |
5216 | string_info = Fcons (object, make_number (charpos)); | |
5217 | } | |
7b4aedb9 | 5218 | else |
a955ffa2 GM |
5219 | { |
5220 | Lisp_Object object; | |
5221 | struct display_pos p; | |
5222 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5223 | posn = make_number (CHARPOS (p.pos)); | |
db14cfc5 GM |
5224 | if (STRINGP (object)) |
5225 | string_info | |
5226 | = Fcons (object, | |
5227 | make_number (CHARPOS (p.string_pos))); | |
a955ffa2 | 5228 | } |
7b4aedb9 JB |
5229 | } |
5230 | ||
5ec75a55 RS |
5231 | position |
5232 | = Fcons (window, | |
5233 | Fcons (posn, | |
5234 | Fcons (Fcons (event->x, event->y), | |
5235 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
5236 | (NILP (string_info) |
5237 | ? Qnil | |
5238 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 5239 | } |
7ee32cda | 5240 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5241 | else |
88cb0656 | 5242 | { |
7ee32cda | 5243 | /* It's a scrollbar click. */ |
9e20143a RS |
5244 | Lisp_Object portion_whole; |
5245 | Lisp_Object part; | |
5246 | ||
5247 | window = event->frame_or_window; | |
5248 | portion_whole = Fcons (event->x, event->y); | |
5249 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5250 | |
db08707d RS |
5251 | position |
5252 | = Fcons (window, | |
5253 | Fcons (Qvertical_scroll_bar, | |
5254 | Fcons (portion_whole, | |
5255 | Fcons (make_number (event->timestamp), | |
5256 | Fcons (part, Qnil))))); | |
88cb0656 | 5257 | } |
7ee32cda | 5258 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5259 | |
129004d3 | 5260 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5261 | { |
5262 | button_down_location = larger_vector (button_down_location, | |
5263 | button + 1, Qnil); | |
5264 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5265 | } | |
c60ee5e7 | 5266 | |
129004d3 | 5267 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5268 | start_pos = *start_pos_ptr; |
5269 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5270 | |
c5cf2109 GM |
5271 | { |
5272 | /* On window-system frames, use the value of | |
5273 | double-click-fuzz as is. On other frames, interpret it | |
5274 | as a multiple of 1/8 characters. */ | |
5275 | struct frame *f; | |
5276 | int fuzz; | |
5277 | ||
5278 | if (WINDOWP (event->frame_or_window)) | |
5279 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5280 | else if (FRAMEP (event->frame_or_window)) | |
5281 | f = XFRAME (event->frame_or_window); | |
5282 | else | |
5283 | abort (); | |
5284 | ||
5285 | if (FRAME_WINDOW_P (f)) | |
5286 | fuzz = double_click_fuzz; | |
5287 | else | |
5288 | fuzz = double_click_fuzz / 8; | |
5289 | ||
5290 | is_double = (button == last_mouse_button | |
5291 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5292 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5293 | && button_down_time != 0 | |
5294 | && (EQ (Vdouble_click_time, Qt) | |
5295 | || (INTEGERP (Vdouble_click_time) | |
5296 | && ((int)(event->timestamp - button_down_time) | |
5297 | < XINT (Vdouble_click_time))))); | |
5298 | } | |
c60ee5e7 | 5299 | |
559f9d04 RS |
5300 | last_mouse_button = button; |
5301 | last_mouse_x = XINT (event->x); | |
5302 | last_mouse_y = XINT (event->y); | |
5303 | ||
7b4aedb9 JB |
5304 | /* If this is a button press, squirrel away the location, so |
5305 | we can decide later whether it was a click or a drag. */ | |
5306 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5307 | { |
5308 | if (is_double) | |
5309 | { | |
5310 | double_click_count++; | |
5311 | event->modifiers |= ((double_click_count > 2) | |
5312 | ? triple_modifier | |
5313 | : double_modifier); | |
5314 | } | |
5315 | else | |
5316 | double_click_count = 1; | |
5317 | button_down_time = event->timestamp; | |
5318 | *start_pos_ptr = Fcopy_alist (position); | |
5319 | } | |
7b4aedb9 | 5320 | |
88cb0656 | 5321 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5322 | see if this was a click or a drag. */ |
88cb0656 JB |
5323 | else if (event->modifiers & up_modifier) |
5324 | { | |
129004d3 GM |
5325 | /* If we did not see a down before this up, ignore the up. |
5326 | Probably this happened because the down event chose a | |
5327 | menu item. It would be an annoyance to treat the | |
5328 | release of the button that chose the menu item as a | |
5329 | separate event. */ | |
48e416d4 | 5330 | |
8c18cbfb | 5331 | if (!CONSP (start_pos)) |
48e416d4 RS |
5332 | return Qnil; |
5333 | ||
88cb0656 | 5334 | event->modifiers &= ~up_modifier; |
48e416d4 | 5335 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5336 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5337 | event->modifiers |= click_modifier; |
5338 | else | |
48e416d4 | 5339 | #endif |
dbc4e1c1 | 5340 | { |
9b8eb840 | 5341 | Lisp_Object down; |
d31053f9 | 5342 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5343 | |
d31053f9 RS |
5344 | /* The third element of every position |
5345 | should be the (x,y) pair. */ | |
5346 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5347 | if (CONSP (down) |
5348 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5349 | { |
7a6a97d7 SM |
5350 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5351 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5352 | } |
5353 | ||
5354 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5355 | && ydiff < double_click_fuzz | |
5356 | && ydiff > - double_click_fuzz) | |
5357 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5358 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5359 | else |
5360 | { | |
d31053f9 RS |
5361 | button_down_time = 0; |
5362 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5363 | } |
c60ee5e7 | 5364 | |
bc536d84 RS |
5365 | /* Don't check is_double; treat this as multiple |
5366 | if the down-event was multiple. */ | |
5367 | if (double_click_count > 1) | |
5368 | event->modifiers |= ((double_click_count > 2) | |
5369 | ? triple_modifier | |
5370 | : double_modifier); | |
dbc4e1c1 | 5371 | } |
88cb0656 JB |
5372 | } |
5373 | else | |
5374 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5375 | the up_modifier set. */ |
88cb0656 JB |
5376 | abort (); |
5377 | ||
88cb0656 | 5378 | { |
7b4aedb9 | 5379 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5380 | Lisp_Object head; |
5381 | ||
5382 | head = modify_event_symbol (button, | |
5383 | event->modifiers, | |
8e1e4240 GM |
5384 | Qmouse_click, Vlispy_mouse_stem, |
5385 | NULL, | |
5386 | &mouse_syms, | |
5387 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5388 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5389 | return Fcons (head, |
5390 | Fcons (start_pos, | |
5391 | Fcons (position, | |
5392 | Qnil))); | |
fbcd35bd JB |
5393 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5394 | return Fcons (head, | |
5395 | Fcons (position, | |
5396 | Fcons (make_number (double_click_count), | |
5397 | Qnil))); | |
88cb0656 JB |
5398 | else |
5399 | return Fcons (head, | |
7b4aedb9 | 5400 | Fcons (position, |
88cb0656 JB |
5401 | Qnil)); |
5402 | } | |
284f4730 | 5403 | } |
db08707d | 5404 | |
8006e4bb JR |
5405 | case WHEEL_EVENT: |
5406 | { | |
5407 | Lisp_Object position; | |
5408 | Lisp_Object window; | |
5409 | Lisp_Object head; | |
5410 | ||
87d386ff JR |
5411 | /* Build the position as appropriate for this mouse click. */ |
5412 | enum window_part part; | |
5413 | struct frame *f = XFRAME (event->frame_or_window); | |
5414 | Lisp_Object posn; | |
5415 | Lisp_Object string_info = Qnil; | |
5416 | int row, column; | |
5417 | int wx, wy; | |
8006e4bb | 5418 | position = Qnil; |
87d386ff JR |
5419 | |
5420 | /* Ignore wheel events that were made on frame that have been | |
5421 | deleted. */ | |
5422 | if (! FRAME_LIVE_P (f)) | |
5423 | return Qnil; | |
5424 | ||
5425 | /* EVENT->x and EVENT->y are frame-relative pixel | |
5426 | coordinates at this place. Under old redisplay, COLUMN | |
5427 | and ROW are set to frame relative glyph coordinates | |
5428 | which are then used to determine whether this click is | |
5429 | in a menu (non-toolkit version). */ | |
5430 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5431 | &column, &row, NULL, 1); | |
5432 | ||
5433 | /* Set `window' to the window under frame pixel coordinates | |
5434 | event->x/event->y. */ | |
5435 | window = window_from_coordinates (f, XINT (event->x), | |
5436 | XINT (event->y), | |
5437 | &part, &wx, &wy, 0); | |
5438 | ||
5439 | if (!WINDOWP (window)) | |
5440 | { | |
5441 | window = event->frame_or_window; | |
5442 | posn = Qnil; | |
5443 | } | |
5444 | else | |
5445 | { | |
5446 | /* It's a click in window window at frame coordinates | |
5447 | event->x/ event->y. */ | |
5448 | struct window *w = XWINDOW (window); | |
5449 | ||
5450 | /* Set event coordinates to window-relative coordinates | |
5451 | for constructing the Lisp event below. */ | |
5452 | XSETINT (event->x, wx); | |
5453 | XSETINT (event->y, wy); | |
5454 | ||
5455 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
5456 | { | |
5457 | /* Mode line or header line. Look for a string under | |
5458 | the mouse that may have a `local-map' property. */ | |
5459 | Lisp_Object string; | |
5460 | int charpos; | |
5461 | ||
5462 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5463 | string = mode_line_string (w, wx, wy, part, &charpos); | |
5464 | if (STRINGP (string)) | |
5465 | string_info = Fcons (string, make_number (charpos)); | |
5466 | } | |
5467 | else if (part == ON_VERTICAL_BORDER) | |
5468 | posn = Qvertical_line; | |
5469 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5470 | { | |
5471 | int charpos; | |
5472 | Lisp_Object object = marginal_area_string (w, wx, wy, part, | |
5473 | &charpos); | |
5474 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
5475 | if (STRINGP (object)) | |
5476 | string_info = Fcons (object, make_number (charpos)); | |
5477 | } | |
5478 | else | |
5479 | { | |
5480 | Lisp_Object object; | |
5481 | struct display_pos p; | |
5482 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5483 | posn = make_number (CHARPOS (p.pos)); | |
5484 | if (STRINGP (object)) | |
5485 | string_info | |
5486 | = Fcons (object, | |
5487 | make_number (CHARPOS (p.string_pos))); | |
5488 | } | |
5489 | } | |
5490 | ||
5491 | position | |
5492 | = Fcons (window, | |
5493 | Fcons (posn, | |
5494 | Fcons (Fcons (event->x, event->y), | |
5495 | Fcons (make_number (event->timestamp), | |
5496 | (NILP (string_info) | |
5497 | ? Qnil | |
5498 | : Fcons (string_info, Qnil)))))); | |
5499 | ||
5500 | /* Set double or triple modifiers to indicate the wheel speed. */ | |
5501 | { | |
5502 | /* On window-system frames, use the value of | |
5503 | double-click-fuzz as is. On other frames, interpret it | |
5504 | as a multiple of 1/8 characters. */ | |
5505 | struct frame *f; | |
5506 | int fuzz; | |
5507 | int is_double; | |
5508 | ||
5509 | if (WINDOWP (event->frame_or_window)) | |
5510 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5511 | else if (FRAMEP (event->frame_or_window)) | |
5512 | f = XFRAME (event->frame_or_window); | |
5513 | else | |
5514 | abort (); | |
5515 | ||
5516 | if (FRAME_WINDOW_P (f)) | |
5517 | fuzz = double_click_fuzz; | |
5518 | else | |
5519 | fuzz = double_click_fuzz / 8; | |
5520 | ||
5521 | is_double = (last_mouse_button < 0 | |
5522 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5523 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5524 | && button_down_time != 0 | |
5525 | && (EQ (Vdouble_click_time, Qt) | |
5526 | || (INTEGERP (Vdouble_click_time) | |
5527 | && ((int)(event->timestamp - button_down_time) | |
5528 | < XINT (Vdouble_click_time))))); | |
5529 | if (is_double) | |
5530 | { | |
5531 | double_click_count++; | |
5532 | event->modifiers |= ((double_click_count > 2) | |
5533 | ? triple_modifier | |
5534 | : double_modifier); | |
5535 | } | |
5536 | else | |
5537 | { | |
5538 | double_click_count = 1; | |
5539 | event->modifiers |= click_modifier; | |
5540 | } | |
5541 | ||
5542 | button_down_time = event->timestamp; | |
5543 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5544 | last_mouse_button = -1; | |
5545 | last_mouse_x = XINT (event->x); | |
5546 | last_mouse_y = XINT (event->y); | |
5547 | } | |
5548 | ||
5549 | { | |
5550 | int symbol_num; | |
5551 | ||
5552 | if (event->modifiers & up_modifier) | |
5553 | { | |
5554 | /* Emit a wheel-up event. */ | |
5555 | event->modifiers &= ~up_modifier; | |
5556 | symbol_num = 0; | |
5557 | } | |
5558 | else if (event->modifiers & down_modifier) | |
5559 | { | |
5560 | /* Emit a wheel-down event. */ | |
5561 | event->modifiers &= ~down_modifier; | |
5562 | symbol_num = 1; | |
5563 | } | |
5564 | else | |
5565 | /* Every wheel event should either have the down_modifier or | |
5566 | the up_modifier set. */ | |
5567 | abort (); | |
5568 | ||
5569 | /* Get the symbol we should use for the wheel event. */ | |
5570 | head = modify_event_symbol (symbol_num, | |
5571 | event->modifiers, | |
5572 | Qmouse_click, | |
5573 | Qnil, | |
5574 | lispy_wheel_names, | |
5575 | &wheel_syms, | |
5576 | ASIZE (wheel_syms)); | |
5577 | } | |
5578 | ||
5579 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5580 | return Fcons (head, | |
5581 | Fcons (position, | |
5582 | Fcons (make_number (double_click_count), | |
5583 | Qnil))); | |
5584 | else | |
5585 | return Fcons (head, | |
5586 | Fcons (position, | |
5587 | Qnil)); | |
8006e4bb JR |
5588 | } |
5589 | ||
5590 | ||
05be3964 | 5591 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5592 | |
5593 | /* We don't have down and up events if using toolkit scroll bars, | |
5594 | so make this always a click event. Store in the `part' of | |
5595 | the Lisp event a symbol which maps to the following actions: | |
5596 | ||
5597 | `above_handle' page up | |
5598 | `below_handle' page down | |
5599 | `up' line up | |
5600 | `down' line down | |
5601 | `top' top of buffer | |
5602 | `bottom' bottom of buffer | |
5603 | `handle' thumb has been dragged. | |
5604 | `end-scroll' end of interaction with scroll bar | |
5605 | ||
5606 | The incoming input_event contains in its `part' member an | |
5607 | index of type `enum scroll_bar_part' which we can use as an | |
5608 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 5609 | |
3b8f9651 | 5610 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5611 | { |
5612 | Lisp_Object position, head, window, portion_whole, part; | |
5613 | ||
5614 | window = event->frame_or_window; | |
5615 | portion_whole = Fcons (event->x, event->y); | |
5616 | part = *scroll_bar_parts[(int) event->part]; | |
5617 | ||
5618 | position | |
5619 | = Fcons (window, | |
5620 | Fcons (Qvertical_scroll_bar, | |
5621 | Fcons (portion_whole, | |
5622 | Fcons (make_number (event->timestamp), | |
5623 | Fcons (part, Qnil))))); | |
5624 | ||
5625 | /* Always treat scroll bar events as clicks. */ | |
5626 | event->modifiers |= click_modifier; | |
05be3964 | 5627 | event->modifiers &= ~up_modifier; |
7ee32cda | 5628 | |
257f40f2 JD |
5629 | if (event->code >= ASIZE (mouse_syms)) |
5630 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
5631 | ||
7ee32cda GM |
5632 | /* Get the symbol we should use for the mouse click. */ |
5633 | head = modify_event_symbol (event->code, | |
5634 | event->modifiers, | |
14e40288 | 5635 | Qmouse_click, |
8e1e4240 GM |
5636 | Vlispy_mouse_stem, |
5637 | NULL, &mouse_syms, | |
5638 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5639 | return Fcons (head, Fcons (position, Qnil)); |
5640 | } | |
c60ee5e7 | 5641 | |
7ee32cda GM |
5642 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
5643 | ||
db08707d | 5644 | #ifdef WINDOWSNT |
3b8f9651 | 5645 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5646 | { |
5647 | int button = event->code; | |
5648 | int is_double; | |
5649 | Lisp_Object position; | |
5650 | Lisp_Object *start_pos_ptr; | |
5651 | Lisp_Object start_pos; | |
5652 | ||
db08707d RS |
5653 | { |
5654 | Lisp_Object window; | |
5655 | Lisp_Object portion_whole; | |
5656 | Lisp_Object part; | |
5657 | ||
5658 | window = event->frame_or_window; | |
5659 | portion_whole = Fcons (event->x, event->y); | |
5660 | part = *scroll_bar_parts[(int) event->part]; | |
5661 | ||
e8886a1d RS |
5662 | position |
5663 | = Fcons (window, | |
5664 | Fcons (Qvertical_scroll_bar, | |
5665 | Fcons (portion_whole, | |
5666 | Fcons (make_number (event->timestamp), | |
5667 | Fcons (part, Qnil))))); | |
db08707d RS |
5668 | } |
5669 | ||
fbd6baed | 5670 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5671 | event->modifiers |= click_modifier; |
5672 | ||
5673 | { | |
5674 | /* Get the symbol we should use for the mouse click. */ | |
5675 | Lisp_Object head; | |
5676 | ||
5677 | head = modify_event_symbol (button, | |
5678 | event->modifiers, | |
c60ee5e7 | 5679 | Qmouse_click, |
8e1e4240 GM |
5680 | Vlispy_mouse_stem, |
5681 | NULL, &mouse_syms, | |
5682 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5683 | return Fcons (head, |
5684 | Fcons (position, | |
5685 | Qnil)); | |
5686 | } | |
5687 | } | |
1e7c162f | 5688 | #endif /* WINDOWSNT */ |
a24dc617 | 5689 | |
3b8f9651 | 5690 | case DRAG_N_DROP_EVENT: |
a24dc617 | 5691 | { |
169f857a | 5692 | enum window_part part; |
a24dc617 RS |
5693 | FRAME_PTR f; |
5694 | Lisp_Object window; | |
5695 | Lisp_Object posn; | |
a24dc617 | 5696 | Lisp_Object files; |
2cdbe73e | 5697 | int wx, wy; |
a24dc617 RS |
5698 | |
5699 | /* The frame_or_window field should be a cons of the frame in | |
5700 | which the event occurred and a list of the filenames | |
5701 | dropped. */ | |
5702 | if (! CONSP (event->frame_or_window)) | |
5703 | abort (); | |
5704 | ||
7539e11f KR |
5705 | f = XFRAME (XCAR (event->frame_or_window)); |
5706 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5707 | |
5708 | /* Ignore mouse events that were made on frames that | |
5709 | have been deleted. */ | |
5710 | if (! FRAME_LIVE_P (f)) | |
5711 | return Qnil; | |
afabdbe5 JR |
5712 | |
5713 | window = window_from_coordinates (f, XINT (event->x), | |
2cdbe73e KS |
5714 | XINT (event->y), |
5715 | &part, &wx, &wy, 0); | |
a24dc617 RS |
5716 | |
5717 | if (!WINDOWP (window)) | |
5718 | { | |
7539e11f | 5719 | window = XCAR (event->frame_or_window); |
a24dc617 RS |
5720 | posn = Qnil; |
5721 | } | |
5722 | else | |
5723 | { | |
7ee32cda GM |
5724 | /* It's an event in window `window' at frame coordinates |
5725 | event->x/ event->y. */ | |
5726 | struct window *w = XWINDOW (window); | |
5727 | ||
7ee32cda GM |
5728 | /* Set event coordinates to window-relative coordinates |
5729 | for constructing the Lisp event below. */ | |
5730 | XSETINT (event->x, wx); | |
5731 | XSETINT (event->y, wy); | |
a24dc617 | 5732 | |
169f857a | 5733 | if (part == ON_MODE_LINE) |
a24dc617 | 5734 | posn = Qmode_line; |
169f857a | 5735 | else if (part == ON_VERTICAL_BORDER) |
a24dc617 | 5736 | posn = Qvertical_line; |
169f857a | 5737 | else if (part == ON_HEADER_LINE) |
045dee35 | 5738 | posn = Qheader_line; |
a24dc617 | 5739 | else |
a955ffa2 GM |
5740 | { |
5741 | Lisp_Object object; | |
5742 | struct display_pos p; | |
5743 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5744 | posn = make_number (CHARPOS (p.pos)); | |
5745 | } | |
a24dc617 RS |
5746 | } |
5747 | ||
5748 | { | |
5749 | Lisp_Object head, position; | |
5750 | ||
5751 | position | |
5752 | = Fcons (window, | |
5753 | Fcons (posn, | |
5754 | Fcons (Fcons (event->x, event->y), | |
5755 | Fcons (make_number (event->timestamp), | |
5756 | Qnil)))); | |
5757 | ||
5758 | head = modify_event_symbol (0, event->modifiers, | |
5759 | Qdrag_n_drop, Qnil, | |
5760 | lispy_drag_n_drop_names, | |
5761 | &drag_n_drop_syms, 1); | |
5762 | return Fcons (head, | |
5763 | Fcons (position, | |
5764 | Fcons (files, | |
5765 | Qnil))); | |
5766 | } | |
5767 | } | |
514354e9 | 5768 | #endif /* HAVE_MOUSE */ |
284f4730 | 5769 | |
488dd4c4 JD |
5770 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
5771 | || defined (USE_GTK) | |
da8f7368 GM |
5772 | case MENU_BAR_EVENT: |
5773 | if (EQ (event->arg, event->frame_or_window)) | |
5774 | /* This is the prefix key. We translate this to | |
5775 | `(menu_bar)' because the code in keyboard.c for menu | |
5776 | events, which we use, relies on this. */ | |
5777 | return Fcons (Qmenu_bar, Qnil); | |
5778 | return event->arg; | |
2470a66f KH |
5779 | #endif |
5780 | ||
a4e19f6e SM |
5781 | case SELECT_WINDOW_EVENT: |
5782 | /* Make an event (select-window (WINDOW)). */ | |
5783 | return Fcons (Qselect_window, | |
5784 | Fcons (Fcons (event->frame_or_window, Qnil), | |
5785 | Qnil)); | |
5786 | ||
9ea173e8 | 5787 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5788 | if (EQ (event->arg, event->frame_or_window)) |
5789 | /* This is the prefix key. We translate this to | |
27fd22dc | 5790 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5791 | events, which we use, relies on this. */ |
5792 | return Fcons (Qtool_bar, Qnil); | |
5793 | else if (SYMBOLP (event->arg)) | |
5794 | return apply_modifiers (event->modifiers, event->arg); | |
5795 | return event->arg; | |
5796 | ||
5797 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5798 | /* A user signal. */ |
5799 | return *lispy_user_signals[event->code]; | |
c60ee5e7 | 5800 | |
3b8f9651 | 5801 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 5802 | return Qsave_session; |
c60ee5e7 | 5803 | |
284f4730 JB |
5804 | /* The 'kind' field of the event is something we don't recognize. */ |
5805 | default: | |
48e416d4 | 5806 | abort (); |
284f4730 JB |
5807 | } |
5808 | } | |
5809 | ||
514354e9 | 5810 | #ifdef HAVE_MOUSE |
6cbff1cb | 5811 | |
284f4730 | 5812 | static Lisp_Object |
7b4aedb9 | 5813 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5814 | FRAME_PTR frame; |
7b4aedb9 | 5815 | Lisp_Object bar_window; |
3c370943 | 5816 | enum scroll_bar_part part; |
284f4730 | 5817 | Lisp_Object x, y; |
e5d77022 | 5818 | unsigned long time; |
284f4730 | 5819 | { |
3c370943 | 5820 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5821 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5822 | { |
9b8eb840 | 5823 | Lisp_Object part_sym; |
4bb994d1 | 5824 | |
9b8eb840 | 5825 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5826 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5827 | (Fcons (Fcons (bar_window, |
3c370943 | 5828 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5829 | Fcons (Fcons (x, y), |
5830 | Fcons (make_number (time), | |
cb5df6ae | 5831 | Fcons (part_sym, |
4bb994d1 JB |
5832 | Qnil))))), |
5833 | Qnil))); | |
5834 | } | |
5835 | ||
5836 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5837 | else |
5838 | { | |
169f857a | 5839 | enum window_part area; |
9e20143a | 5840 | Lisp_Object window; |
4bb994d1 | 5841 | Lisp_Object posn; |
2cdbe73e | 5842 | int wx, wy; |
9e20143a | 5843 | |
9e20143a | 5844 | if (frame) |
7ee32cda | 5845 | /* It's in a frame; which window on that frame? */ |
2cdbe73e KS |
5846 | window = window_from_coordinates (frame, XINT (x), XINT (y), |
5847 | &area, &wx, &wy, 0); | |
9e20143a RS |
5848 | else |
5849 | window = Qnil; | |
4bb994d1 | 5850 | |
8c18cbfb | 5851 | if (WINDOWP (window)) |
4bb994d1 | 5852 | { |
7ee32cda | 5853 | struct window *w = XWINDOW (window); |
c60ee5e7 | 5854 | |
2cdbe73e | 5855 | /* Set window relative coordinates. */ |
7ee32cda GM |
5856 | XSETINT (x, wx); |
5857 | XSETINT (y, wy); | |
c60ee5e7 | 5858 | |
169f857a | 5859 | if (area == ON_MODE_LINE) |
4bb994d1 | 5860 | posn = Qmode_line; |
169f857a | 5861 | else if (area == ON_VERTICAL_BORDER) |
4bb994d1 | 5862 | posn = Qvertical_line; |
169f857a | 5863 | else if (area == ON_HEADER_LINE) |
045dee35 | 5864 | posn = Qheader_line; |
4bb994d1 | 5865 | else |
a955ffa2 GM |
5866 | { |
5867 | Lisp_Object object; | |
5868 | struct display_pos p; | |
5869 | buffer_posn_from_coords (w, &wx, &wy, &object, &p); | |
5870 | posn = make_number (CHARPOS (p.pos)); | |
5871 | } | |
4bb994d1 | 5872 | } |
e9bf89a0 RS |
5873 | else if (frame != 0) |
5874 | { | |
18cd2eeb | 5875 | XSETFRAME (window, frame); |
e9bf89a0 RS |
5876 | posn = Qnil; |
5877 | } | |
284f4730 | 5878 | else |
4bb994d1 JB |
5879 | { |
5880 | window = Qnil; | |
5881 | posn = Qnil; | |
bb9e9bed KH |
5882 | XSETFASTINT (x, 0); |
5883 | XSETFASTINT (y, 0); | |
4bb994d1 | 5884 | } |
284f4730 | 5885 | |
4bb994d1 JB |
5886 | return Fcons (Qmouse_movement, |
5887 | Fcons (Fcons (window, | |
5888 | Fcons (posn, | |
5889 | Fcons (Fcons (x, y), | |
5890 | Fcons (make_number (time), | |
5891 | Qnil)))), | |
5892 | Qnil)); | |
5893 | } | |
284f4730 JB |
5894 | } |
5895 | ||
514354e9 | 5896 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5897 | |
cd21b839 JB |
5898 | /* Construct a switch frame event. */ |
5899 | static Lisp_Object | |
5900 | make_lispy_switch_frame (frame) | |
5901 | Lisp_Object frame; | |
5902 | { | |
5903 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5904 | } | |
0a7f1fc0 JB |
5905 | \f |
5906 | /* Manipulating modifiers. */ | |
284f4730 | 5907 | |
0a7f1fc0 | 5908 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5909 | |
0a7f1fc0 JB |
5910 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5911 | SYMBOL's name of the end of the modifiers; the string from this | |
5912 | position is the unmodified symbol name. | |
284f4730 | 5913 | |
0a7f1fc0 | 5914 | This doesn't use any caches. */ |
6da3dd3a | 5915 | |
0a7f1fc0 JB |
5916 | static int |
5917 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5918 | Lisp_Object symbol; |
0a7f1fc0 | 5919 | int *modifier_end; |
284f4730 | 5920 | { |
1b049b51 | 5921 | Lisp_Object name; |
284f4730 JB |
5922 | int i; |
5923 | int modifiers; | |
284f4730 | 5924 | |
b7826503 | 5925 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5926 | |
284f4730 | 5927 | modifiers = 0; |
1b049b51 | 5928 | name = SYMBOL_NAME (symbol); |
284f4730 | 5929 | |
1b049b51 | 5930 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5931 | { |
5932 | int this_mod_end = 0; | |
5933 | int this_mod = 0; | |
284f4730 | 5934 | |
6da3dd3a RS |
5935 | /* See if the name continues with a modifier word. |
5936 | Check that the word appears, but don't check what follows it. | |
5937 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5938 | |
1b049b51 | 5939 | switch (SREF (name, i)) |
6da3dd3a RS |
5940 | { |
5941 | #define SINGLE_LETTER_MOD(BIT) \ | |
5942 | (this_mod_end = i + 1, this_mod = BIT) | |
5943 | ||
6da3dd3a RS |
5944 | case 'A': |
5945 | SINGLE_LETTER_MOD (alt_modifier); | |
5946 | break; | |
284f4730 | 5947 | |
6da3dd3a RS |
5948 | case 'C': |
5949 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5950 | break; | |
284f4730 | 5951 | |
6da3dd3a RS |
5952 | case 'H': |
5953 | SINGLE_LETTER_MOD (hyper_modifier); | |
5954 | break; | |
5955 | ||
6da3dd3a RS |
5956 | case 'M': |
5957 | SINGLE_LETTER_MOD (meta_modifier); | |
5958 | break; | |
5959 | ||
6da3dd3a RS |
5960 | case 'S': |
5961 | SINGLE_LETTER_MOD (shift_modifier); | |
5962 | break; | |
5963 | ||
5964 | case 's': | |
6da3dd3a RS |
5965 | SINGLE_LETTER_MOD (super_modifier); |
5966 | break; | |
5967 | ||
0a7f1fc0 | 5968 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
5969 | |
5970 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
5971 | if (i + LEN + 1 <= SBYTES (name) \ | |
5972 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
5973 | { \ | |
5974 | this_mod_end = i + LEN; \ | |
5975 | this_mod = BIT; \ | |
5976 | } | |
5977 | ||
5978 | case 'd': | |
5979 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5980 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5981 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5982 | break; | |
5983 | ||
5984 | case 't': | |
5985 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5986 | break; | |
5987 | #undef MULTI_LETTER_MOD | |
5988 | ||
6da3dd3a RS |
5989 | } |
5990 | ||
5991 | /* If we found no modifier, stop looking for them. */ | |
5992 | if (this_mod_end == 0) | |
5993 | break; | |
5994 | ||
5995 | /* Check there is a dash after the modifier, so that it | |
5996 | really is a modifier. */ | |
1b049b51 KR |
5997 | if (this_mod_end >= SBYTES (name) |
5998 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
5999 | break; |
6000 | ||
6001 | /* This modifier is real; look for another. */ | |
6002 | modifiers |= this_mod; | |
6003 | i = this_mod_end + 1; | |
6004 | } | |
284f4730 | 6005 | |
0a7f1fc0 | 6006 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6007 | if (! (modifiers & (down_modifier | drag_modifier |
6008 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6009 | && i + 7 == SBYTES (name) |
6010 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6011 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6012 | modifiers |= click_modifier; |
6013 | ||
6014 | if (modifier_end) | |
6015 | *modifier_end = i; | |
6016 | ||
6017 | return modifiers; | |
6018 | } | |
6019 | ||
0a7f1fc0 JB |
6020 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6021 | prepended to the string BASE[0..BASE_LEN-1]. | |
6022 | This doesn't use any caches. */ | |
6023 | static Lisp_Object | |
301738ed | 6024 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6025 | int modifiers; |
6026 | char *base; | |
301738ed | 6027 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6028 | { |
6029 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6030 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6031 | reference to it. */ | |
301738ed RS |
6032 | char *new_mods |
6033 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6034 | int mod_len; |
284f4730 | 6035 | |
284f4730 | 6036 | { |
0a7f1fc0 JB |
6037 | char *p = new_mods; |
6038 | ||
6039 | /* Only the event queue may use the `up' modifier; it should always | |
6040 | be turned into a click or drag event before presented to lisp code. */ | |
6041 | if (modifiers & up_modifier) | |
6042 | abort (); | |
6043 | ||
6044 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6045 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6046 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6047 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6048 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6049 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6050 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6051 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6052 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6053 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6054 | /* The click modifier is denoted by the absence of other modifiers. */ |
6055 | ||
6056 | *p = '\0'; | |
6057 | ||
6058 | mod_len = p - new_mods; | |
6059 | } | |
284f4730 | 6060 | |
0a7f1fc0 | 6061 | { |
9b8eb840 | 6062 | Lisp_Object new_name; |
df0f2ba1 | 6063 | |
301738ed RS |
6064 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6065 | mod_len + base_len_byte); | |
d5db4077 KR |
6066 | bcopy (new_mods, SDATA (new_name), mod_len); |
6067 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6068 | |
6069 | return Fintern (new_name, Qnil); | |
6070 | } | |
6071 | } | |
6072 | ||
6073 | ||
0a7f1fc0 JB |
6074 | static char *modifier_names[] = |
6075 | { | |
fbcd35bd | 6076 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6077 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6078 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6079 | }; |
80645119 | 6080 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6081 | |
6082 | static Lisp_Object modifier_symbols; | |
6083 | ||
6084 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6085 | static Lisp_Object | |
6086 | lispy_modifier_list (modifiers) | |
6087 | int modifiers; | |
6088 | { | |
6089 | Lisp_Object modifier_list; | |
6090 | int i; | |
6091 | ||
6092 | modifier_list = Qnil; | |
80645119 | 6093 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6094 | if (modifiers & (1<<i)) |
80645119 JB |
6095 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6096 | modifier_list); | |
0a7f1fc0 JB |
6097 | |
6098 | return modifier_list; | |
6099 | } | |
6100 | ||
6101 | ||
6102 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6103 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6104 | MASK is the set of modifiers present in SYMBOL's name. | |
6105 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6106 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6107 | Qevent_symbol_elements property. */ | |
3d31316f | 6108 | |
1161d367 | 6109 | Lisp_Object |
0a7f1fc0 JB |
6110 | parse_modifiers (symbol) |
6111 | Lisp_Object symbol; | |
6112 | { | |
9b8eb840 | 6113 | Lisp_Object elements; |
0a7f1fc0 | 6114 | |
9b8eb840 | 6115 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6116 | if (CONSP (elements)) |
6117 | return elements; | |
6118 | else | |
6119 | { | |
6120 | int end; | |
ec0faad2 | 6121 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6122 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6123 | Lisp_Object mask; |
6124 | ||
d5db4077 KR |
6125 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6126 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6127 | Qnil); |
6128 | ||
c4aeb9d8 | 6129 | if (modifiers & ~VALMASK) |
734fef94 | 6130 | abort (); |
bb9e9bed | 6131 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6132 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6133 | ||
6134 | /* Cache the parsing results on SYMBOL. */ | |
6135 | Fput (symbol, Qevent_symbol_element_mask, | |
6136 | elements); | |
6137 | Fput (symbol, Qevent_symbol_elements, | |
6138 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6139 | ||
6140 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6141 | it would be nice to put that in unmodified's cache. | |
6142 | But we can't, since we're not sure that parse_modifiers is | |
6143 | canonical. */ | |
6144 | ||
6145 | return elements; | |
6146 | } | |
6147 | } | |
6148 | ||
6149 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
6150 | BASE must be unmodified. | |
6151 | ||
6152 | This is like apply_modifiers_uncached, but uses BASE's | |
6153 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6154 | Qevent_symbol_elements properties, since it has that info anyway. |
6155 | ||
6156 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6157 | the modified symbol. */ | |
0a7f1fc0 JB |
6158 | static Lisp_Object |
6159 | apply_modifiers (modifiers, base) | |
6160 | int modifiers; | |
6161 | Lisp_Object base; | |
6162 | { | |
7b4aedb9 | 6163 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6164 | |
80645119 | 6165 | /* Mask out upper bits. We don't know where this value's been. */ |
c4aeb9d8 | 6166 | modifiers &= VALMASK; |
80645119 | 6167 | |
0a7f1fc0 | 6168 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6169 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6170 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6171 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6172 | |
6173 | if (CONSP (entry)) | |
7539e11f | 6174 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6175 | else |
6176 | { | |
df0f2ba1 | 6177 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6178 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6179 | SDATA (SYMBOL_NAME (base)), |
6180 | SCHARS (SYMBOL_NAME (base)), | |
6181 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6182 | |
6183 | /* Add the new symbol to the base's cache. */ | |
6184 | entry = Fcons (index, new_symbol); | |
6185 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6186 | ||
35fb885d SM |
6187 | /* We have the parsing info now for free, so we could add it to |
6188 | the caches: | |
6189 | XSETFASTINT (index, modifiers); | |
6190 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6191 | Fcons (base, Fcons (index, Qnil))); | |
6192 | Fput (new_symbol, Qevent_symbol_elements, | |
6193 | Fcons (base, lispy_modifier_list (modifiers))); | |
6194 | Sadly, this is only correct if `base' is indeed a base event, | |
6195 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6196 | } |
0a7f1fc0 | 6197 | |
df0f2ba1 | 6198 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6199 | |
6200 | You'd think we could just set this once and for all when we | |
6201 | intern the symbol above, but reorder_modifiers may call us when | |
6202 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6203 | because it has a Qmodifier_cache property it must have its |
6204 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6205 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6206 | { | |
9b8eb840 | 6207 | Lisp_Object kind; |
7b4aedb9 | 6208 | |
9b8eb840 | 6209 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6210 | if (! NILP (kind)) |
6211 | Fput (new_symbol, Qevent_kind, kind); | |
6212 | } | |
6213 | ||
6214 | return new_symbol; | |
0a7f1fc0 JB |
6215 | } |
6216 | ||
6217 | ||
6218 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6219 | return a symbol with the modifiers placed in the canonical order. | |
6220 | Canonical order is alphabetical, except for down and drag, which | |
6221 | always come last. The 'click' modifier is never written out. | |
6222 | ||
6223 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6224 | and M-C-foo end up being equivalent in the keymap. */ | |
6225 | ||
6226 | Lisp_Object | |
6227 | reorder_modifiers (symbol) | |
6228 | Lisp_Object symbol; | |
6229 | { | |
6230 | /* It's hopefully okay to write the code this way, since everything | |
6231 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6232 | Lisp_Object parsed; |
0a7f1fc0 | 6233 | |
9b8eb840 | 6234 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6235 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6236 | XCAR (parsed)); | |
0a7f1fc0 JB |
6237 | } |
6238 | ||
6239 | ||
284f4730 JB |
6240 | /* For handling events, we often want to produce a symbol whose name |
6241 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6242 | to some base, like the name of a function key or mouse button. | |
6243 | modify_event_symbol produces symbols of this sort. | |
6244 | ||
6245 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6246 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6247 | in the table. | |
6248 | ||
8e1e4240 GM |
6249 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6250 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6251 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6252 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6253 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6254 | |
284f4730 JB |
6255 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6256 | persist between calls to modify_event_symbol that it can use to | |
6257 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6258 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6259 | |
6260 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6261 | |
284f4730 JB |
6262 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6263 | whose prefixes should be applied to the symbol name. | |
6264 | ||
6265 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6266 | the returned symbol. |
88cb0656 JB |
6267 | |
6268 | The symbols we create are supposed to have an | |
eb8c3be9 | 6269 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6270 | in the symbol's name. */ |
6271 | ||
284f4730 | 6272 | static Lisp_Object |
8e1e4240 | 6273 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6274 | name_table, symbol_table, table_size) |
284f4730 JB |
6275 | int symbol_num; |
6276 | unsigned modifiers; | |
6277 | Lisp_Object symbol_kind; | |
8e1e4240 | 6278 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6279 | char **name_table; |
6280 | Lisp_Object *symbol_table; | |
2c834fb3 | 6281 | unsigned int table_size; |
284f4730 | 6282 | { |
80e4aa30 RS |
6283 | Lisp_Object value; |
6284 | Lisp_Object symbol_int; | |
6285 | ||
2c834fb3 KH |
6286 | /* Get rid of the "vendor-specific" bit here. */ |
6287 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6288 | |
6289 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6290 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6291 | return Qnil; |
284f4730 | 6292 | |
80e4aa30 RS |
6293 | if (CONSP (*symbol_table)) |
6294 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6295 | ||
0a7f1fc0 | 6296 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6297 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6298 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6299 | we've never used that symbol before. */ | |
80e4aa30 | 6300 | else |
88cb0656 | 6301 | { |
80e4aa30 RS |
6302 | if (! VECTORP (*symbol_table) |
6303 | || XVECTOR (*symbol_table)->size != table_size) | |
6304 | { | |
6305 | Lisp_Object size; | |
0a7f1fc0 | 6306 | |
bb9e9bed | 6307 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6308 | *symbol_table = Fmake_vector (size, Qnil); |
6309 | } | |
284f4730 | 6310 | |
80e4aa30 RS |
6311 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6312 | } | |
284f4730 | 6313 | |
0a7f1fc0 | 6314 | /* Have we already used this symbol before? */ |
80e4aa30 | 6315 | if (NILP (value)) |
284f4730 | 6316 | { |
0a7f1fc0 | 6317 | /* No; let's create it. */ |
8e1e4240 GM |
6318 | if (CONSP (name_alist_or_stem)) |
6319 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6320 | else if (STRINGP (name_alist_or_stem)) | |
6321 | { | |
d5db4077 | 6322 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6323 | char *buf = (char *) alloca (len + 50); |
ed3230db DL |
6324 | if (sizeof (int) == sizeof (EMACS_INT)) |
6325 | sprintf (buf, "%s-%d", SDATA (name_alist_or_stem), | |
6326 | XINT (symbol_int) + 1); | |
6327 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
6328 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), | |
6329 | XINT (symbol_int) + 1); | |
0dca3959 DL |
6330 | else |
6331 | abort (); | |
8e1e4240 GM |
6332 | value = intern (buf); |
6333 | } | |
2ff6714d | 6334 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6335 | value = intern (name_table[symbol_num]); |
b64b4075 | 6336 | |
e98a93eb | 6337 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6338 | if (NILP (value)) |
6339 | { | |
6340 | char *name = x_get_keysym_name (symbol_num); | |
6341 | if (name) | |
6342 | value = intern (name); | |
6343 | } | |
6344 | #endif | |
6345 | ||
b64b4075 | 6346 | if (NILP (value)) |
d1f50460 RS |
6347 | { |
6348 | char buf[20]; | |
6349 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6350 | value = intern (buf); |
d1f50460 | 6351 | } |
0a7f1fc0 | 6352 | |
80e4aa30 | 6353 | if (CONSP (*symbol_table)) |
4205cb08 | 6354 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6355 | else |
6356 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6357 | ||
df0f2ba1 | 6358 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6359 | builds the Qevent_symbol_elements property, which the user |
6360 | cares about. */ | |
80e4aa30 RS |
6361 | apply_modifiers (modifiers & click_modifier, value); |
6362 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6363 | } |
88cb0656 | 6364 | |
0a7f1fc0 | 6365 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6366 | return apply_modifiers (modifiers, value); |
284f4730 | 6367 | } |
6da3dd3a RS |
6368 | \f |
6369 | /* Convert a list that represents an event type, | |
6370 | such as (ctrl meta backspace), into the usual representation of that | |
6371 | event type as a number or a symbol. */ | |
6372 | ||
a1706c30 | 6373 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6374 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6375 | EVENT-DESC should contain one base event type (a character or symbol) | |
6376 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6377 | drag, down, double or triple). The base must be last. | |
6378 | The return value is an event type (a character or symbol) which | |
6379 | has the same base event type and all the specified modifiers. */) | |
6380 | (event_desc) | |
e57d8fd8 | 6381 | Lisp_Object event_desc; |
6da3dd3a RS |
6382 | { |
6383 | Lisp_Object base; | |
6384 | int modifiers = 0; | |
6385 | Lisp_Object rest; | |
6386 | ||
6387 | base = Qnil; | |
e57d8fd8 | 6388 | rest = event_desc; |
6da3dd3a RS |
6389 | while (CONSP (rest)) |
6390 | { | |
6391 | Lisp_Object elt; | |
6392 | int this = 0; | |
6393 | ||
7539e11f KR |
6394 | elt = XCAR (rest); |
6395 | rest = XCDR (rest); | |
6da3dd3a | 6396 | |
3d31316f | 6397 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6398 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6399 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6400 | |
6401 | if (this != 0) | |
6402 | modifiers |= this; | |
6403 | else if (!NILP (base)) | |
6404 | error ("Two bases given in one event"); | |
6405 | else | |
6406 | base = elt; | |
6407 | ||
6da3dd3a RS |
6408 | } |
6409 | ||
3d31316f | 6410 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6411 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6412 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6413 | |
6da3dd3a RS |
6414 | if (INTEGERP (base)) |
6415 | { | |
3d31316f RS |
6416 | /* Turn (shift a) into A. */ |
6417 | if ((modifiers & shift_modifier) != 0 | |
6418 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6419 | { | |
6420 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6421 | modifiers &= ~shift_modifier; | |
6422 | } | |
6423 | ||
6424 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6425 | if (modifiers & ctrl_modifier) |
3d31316f | 6426 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6427 | | make_ctrl_char (XINT (base))); |
6428 | else | |
6429 | return make_number (modifiers | XINT (base)); | |
6430 | } | |
6431 | else if (SYMBOLP (base)) | |
6432 | return apply_modifiers (modifiers, base); | |
6433 | else | |
8c907a56 GM |
6434 | { |
6435 | error ("Invalid base event"); | |
6436 | return Qnil; | |
6437 | } | |
6da3dd3a RS |
6438 | } |
6439 | ||
3d31316f RS |
6440 | /* Try to recognize SYMBOL as a modifier name. |
6441 | Return the modifier flag bit, or 0 if not recognized. */ | |
6442 | ||
6443 | static int | |
6444 | parse_solitary_modifier (symbol) | |
6445 | Lisp_Object symbol; | |
6446 | { | |
1b049b51 | 6447 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6448 | |
1b049b51 | 6449 | switch (SREF (name, 0)) |
3d31316f RS |
6450 | { |
6451 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6452 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6453 | return BIT; |
6454 | ||
6455 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6456 | if (LEN == SBYTES (name) \ |
6457 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6458 | return BIT; |
6459 | ||
6460 | case 'A': | |
6461 | SINGLE_LETTER_MOD (alt_modifier); | |
6462 | break; | |
6463 | ||
6464 | case 'a': | |
6465 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6466 | break; | |
6467 | ||
6468 | case 'C': | |
6469 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6470 | break; | |
6471 | ||
6472 | case 'c': | |
6473 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6474 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6475 | break; | |
6476 | ||
6477 | case 'H': | |
6478 | SINGLE_LETTER_MOD (hyper_modifier); | |
6479 | break; | |
6480 | ||
6481 | case 'h': | |
6482 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6483 | break; | |
6484 | ||
6485 | case 'M': | |
6486 | SINGLE_LETTER_MOD (meta_modifier); | |
6487 | break; | |
6488 | ||
6489 | case 'm': | |
6490 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6491 | break; | |
6492 | ||
6493 | case 'S': | |
6494 | SINGLE_LETTER_MOD (shift_modifier); | |
6495 | break; | |
6496 | ||
6497 | case 's': | |
6498 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6499 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6500 | SINGLE_LETTER_MOD (super_modifier); | |
6501 | break; | |
6502 | ||
6503 | case 'd': | |
6504 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6505 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6506 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6507 | break; | |
6508 | ||
6509 | case 't': | |
6510 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6511 | break; | |
6512 | ||
6513 | #undef SINGLE_LETTER_MOD | |
6514 | #undef MULTI_LETTER_MOD | |
6515 | } | |
6516 | ||
6517 | return 0; | |
6518 | } | |
6519 | ||
6da3dd3a RS |
6520 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6521 | Such a list is not valid as an event, | |
6522 | but it can be a Lucid-style event type list. */ | |
6523 | ||
6524 | int | |
6525 | lucid_event_type_list_p (object) | |
6526 | Lisp_Object object; | |
6527 | { | |
6528 | Lisp_Object tail; | |
6529 | ||
6530 | if (! CONSP (object)) | |
6531 | return 0; | |
902ae620 GM |
6532 | |
6533 | if (EQ (XCAR (object), Qhelp_echo) | |
6534 | || EQ (XCAR (object), Qvertical_line) | |
6535 | || EQ (XCAR (object), Qmode_line) | |
6536 | || EQ (XCAR (object), Qheader_line)) | |
6537 | return 0; | |
6da3dd3a | 6538 | |
7539e11f | 6539 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6540 | { |
6541 | Lisp_Object elt; | |
7539e11f | 6542 | elt = XCAR (tail); |
6da3dd3a RS |
6543 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6544 | return 0; | |
6545 | } | |
6546 | ||
6547 | return NILP (tail); | |
6548 | } | |
284f4730 | 6549 | \f |
284f4730 JB |
6550 | /* Store into *addr a value nonzero if terminal input chars are available. |
6551 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6552 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6553 | (In fact, this may actually read some input.) |
6554 | ||
20057d52 JD |
6555 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. |
6556 | If FILTER_EVENTS is nonzero, ignore internal events (FOCUS_IN_EVENT). */ | |
284f4730 JB |
6557 | |
6558 | static void | |
20057d52 | 6559 | get_filtered_input_pending (addr, do_timers_now, filter_events) |
284f4730 | 6560 | int *addr; |
d9d4c147 | 6561 | int do_timers_now; |
20057d52 | 6562 | int filter_events; |
284f4730 JB |
6563 | { |
6564 | /* First of all, have we already counted some input? */ | |
20057d52 JD |
6565 | *addr = (!NILP (Vquit_flag) |
6566 | || readable_filtered_events (do_timers_now, filter_events)); | |
284f4730 JB |
6567 | |
6568 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6569 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6570 | return; | |
6571 | ||
6572 | /* Try to read some input and see how much we get. */ | |
6573 | gobble_input (0); | |
20057d52 JD |
6574 | *addr = (!NILP (Vquit_flag) |
6575 | || readable_filtered_events (do_timers_now, filter_events)); | |
6576 | } | |
6577 | ||
6578 | /* Store into *addr a value nonzero if terminal input chars are available. | |
6579 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6580 | but works even if FIONREAD does not exist. | |
6581 | (In fact, this may actually read some input.) | |
6582 | ||
6583 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
6584 | ||
6585 | static void | |
6586 | get_input_pending (addr, do_timers_now) | |
6587 | int *addr; | |
6588 | int do_timers_now; | |
6589 | { | |
6590 | get_filtered_input_pending (addr, do_timers_now, 0); | |
284f4730 JB |
6591 | } |
6592 | ||
81931ba1 | 6593 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6594 | |
07a59269 | 6595 | void |
284f4730 JB |
6596 | gobble_input (expected) |
6597 | int expected; | |
6598 | { | |
6599 | #ifndef VMS | |
6600 | #ifdef SIGIO | |
6601 | if (interrupt_input) | |
6602 | { | |
32676c08 | 6603 | SIGMASKTYPE mask; |
4f8aaa74 | 6604 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6605 | read_avail_input (expected); |
e065a56e | 6606 | sigsetmask (mask); |
284f4730 JB |
6607 | } |
6608 | else | |
81931ba1 RS |
6609 | #ifdef POLL_FOR_INPUT |
6610 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6611 | { | |
6612 | SIGMASKTYPE mask; | |
4f8aaa74 | 6613 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6614 | read_avail_input (expected); |
6615 | sigsetmask (mask); | |
6616 | } | |
6617 | else | |
87485d6f | 6618 | #endif |
284f4730 JB |
6619 | #endif |
6620 | read_avail_input (expected); | |
6621 | #endif | |
6622 | } | |
a8015ab5 | 6623 | |
3b8f9651 | 6624 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6625 | so that read_key_sequence will notice the new current buffer. */ |
6626 | ||
07a59269 | 6627 | void |
a8015ab5 KH |
6628 | record_asynch_buffer_change () |
6629 | { | |
6630 | struct input_event event; | |
a30f0615 | 6631 | Lisp_Object tem; |
1269a761 | 6632 | EVENT_INIT (event); |
a30f0615 | 6633 | |
3b8f9651 | 6634 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6635 | event.frame_or_window = Qnil; |
da8f7368 | 6636 | event.arg = Qnil; |
241ceaf7 | 6637 | |
f65e6f7d | 6638 | #ifdef subprocesses |
a30f0615 RS |
6639 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6640 | The purpose of the event is to make read_key_sequence look up the | |
6641 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6642 | and the event could cause trouble by messing up (input-pending-p). */ | |
6643 | tem = Fwaiting_for_user_input_p (); | |
6644 | if (NILP (tem)) | |
6645 | return; | |
f65e6f7d RS |
6646 | #else |
6647 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6648 | return; | |
6649 | #endif | |
a30f0615 | 6650 | |
241ceaf7 RS |
6651 | /* Make sure no interrupt happens while storing the event. */ |
6652 | #ifdef SIGIO | |
6653 | if (interrupt_input) | |
6654 | { | |
6655 | SIGMASKTYPE mask; | |
4f8aaa74 | 6656 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6657 | kbd_buffer_store_event (&event); |
6658 | sigsetmask (mask); | |
6659 | } | |
6660 | else | |
6661 | #endif | |
6662 | { | |
6663 | stop_polling (); | |
6664 | kbd_buffer_store_event (&event); | |
6665 | start_polling (); | |
6666 | } | |
a8015ab5 | 6667 | } |
284f4730 JB |
6668 | \f |
6669 | #ifndef VMS | |
6670 | ||
6671 | /* Read any terminal input already buffered up by the system | |
6672 | into the kbd_buffer, but do not wait. | |
6673 | ||
6674 | EXPECTED should be nonzero if the caller knows there is some input. | |
6675 | ||
6676 | Except on VMS, all input is read by this function. | |
6677 | If interrupt_input is nonzero, this function MUST be called | |
6678 | only when SIGIO is blocked. | |
6679 | ||
6680 | Returns the number of keyboard chars read, or -1 meaning | |
6681 | this is a bad time to try to read input. */ | |
6682 | ||
6683 | static int | |
6684 | read_avail_input (expected) | |
6685 | int expected; | |
6686 | { | |
6687 | struct input_event buf[KBD_BUFFER_SIZE]; | |
6688 | register int i; | |
6689 | int nread; | |
6690 | ||
1269a761 SM |
6691 | for (i = 0; i < KBD_BUFFER_SIZE; i++) |
6692 | EVENT_INIT (buf[i]); | |
6693 | ||
284f4730 JB |
6694 | if (read_socket_hook) |
6695 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 6696 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
6697 | else |
6698 | { | |
17270835 RS |
6699 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6700 | the kbd_buffer can really hold. That may prevent loss | |
6701 | of characters on some systems when input is stuffed at us. */ | |
6702 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6703 | int n_to_read; |
284f4730 | 6704 | |
58788063 | 6705 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
6706 | #ifdef WINDOWSNT |
6707 | return 0; | |
6708 | #else /* not WINDOWSNT */ | |
80e4aa30 | 6709 | #ifdef MSDOS |
58788063 RS |
6710 | n_to_read = dos_keysns (); |
6711 | if (n_to_read == 0) | |
6712 | return 0; | |
c3a2738c | 6713 | #else /* not MSDOS */ |
284f4730 JB |
6714 | #ifdef FIONREAD |
6715 | /* Find out how much input is available. */ | |
437f6112 | 6716 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6717 | /* Formerly simply reported no input, but that sometimes led to |
6718 | a failure of Emacs to terminate. | |
6719 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6720 | /* ??? Is it really right to send the signal just to this process |
6721 | rather than to the whole process group? | |
6722 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
f1871a7d RS |
6723 | { |
6724 | if (! noninteractive) | |
6725 | kill (getpid (), SIGHUP); | |
6726 | else | |
6727 | n_to_read = 0; | |
6728 | } | |
58788063 | 6729 | if (n_to_read == 0) |
284f4730 | 6730 | return 0; |
58788063 RS |
6731 | if (n_to_read > sizeof cbuf) |
6732 | n_to_read = sizeof cbuf; | |
284f4730 | 6733 | #else /* no FIONREAD */ |
c60ee5e7 | 6734 | #if defined (USG) || defined (DGUX) || defined(CYGWIN) |
284f4730 | 6735 | /* Read some input if available, but don't wait. */ |
58788063 | 6736 | n_to_read = sizeof cbuf; |
437f6112 | 6737 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6738 | #else |
6739 | you lose; | |
6740 | #endif | |
6741 | #endif | |
80e4aa30 | 6742 | #endif /* not MSDOS */ |
bc536d84 | 6743 | #endif /* not WINDOWSNT */ |
284f4730 | 6744 | |
58788063 RS |
6745 | /* Now read; for one reason or another, this will not block. |
6746 | NREAD is set to the number of chars read. */ | |
9134775b | 6747 | do |
284f4730 | 6748 | { |
80e4aa30 | 6749 | #ifdef MSDOS |
0c04a67e | 6750 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6751 | nread = 1; |
6752 | #else | |
68c45bf0 | 6753 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6754 | #endif |
49854566 RS |
6755 | /* POSIX infers that processes which are not in the session leader's |
6756 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6757 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6758 | when the control tty is taken away. |
6759 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6760 | if (nread == -1 && errno == EIO) | |
6761 | kill (0, SIGHUP); | |
762f2b92 | 6762 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6763 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6764 | This looks incorrect, but it isn't, because _BSD causes | |
6765 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6766 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6767 | if (nread == 0) |
80e4aa30 | 6768 | kill (0, SIGHUP); |
284f4730 | 6769 | #endif |
9134775b | 6770 | } |
791587ee KH |
6771 | while ( |
6772 | /* We used to retry the read if it was interrupted. | |
6773 | But this does the wrong thing when O_NDELAY causes | |
6774 | an EAGAIN error. Does anybody know of a situation | |
6775 | where a retry is actually needed? */ | |
6776 | #if 0 | |
6777 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6778 | #ifdef EFAULT |
9134775b | 6779 | || errno == EFAULT |
80e4aa30 | 6780 | #endif |
284f4730 | 6781 | #ifdef EBADSLT |
9134775b | 6782 | || errno == EBADSLT |
284f4730 | 6783 | #endif |
791587ee KH |
6784 | ) |
6785 | #else | |
6786 | 0 | |
6787 | #endif | |
6788 | ); | |
284f4730 JB |
6789 | |
6790 | #ifndef FIONREAD | |
c60ee5e7 | 6791 | #if defined (USG) || defined (DGUX) || defined (CYGWIN) |
437f6112 | 6792 | fcntl (input_fd, F_SETFL, 0); |
c60ee5e7 | 6793 | #endif /* USG or DGUX or CYGWIN */ |
284f4730 JB |
6794 | #endif /* no FIONREAD */ |
6795 | for (i = 0; i < nread; i++) | |
6796 | { | |
3b8f9651 | 6797 | buf[i].kind = ASCII_KEYSTROKE_EVENT; |
86e5706b | 6798 | buf[i].modifiers = 0; |
b04904fb | 6799 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 6800 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
6801 | if (meta_key != 2) |
6802 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
6803 | |
6804 | buf[i].code = cbuf[i]; | |
788f89eb | 6805 | buf[i].frame_or_window = selected_frame; |
da8f7368 | 6806 | buf[i].arg = Qnil; |
284f4730 JB |
6807 | } |
6808 | } | |
6809 | ||
6810 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
6811 | for (i = 0; i < nread; i++) | |
6812 | { | |
6813 | kbd_buffer_store_event (&buf[i]); | |
6814 | /* Don't look at input that follows a C-g too closely. | |
6815 | This reduces lossage due to autorepeat on C-g. */ | |
3b8f9651 | 6816 | if (buf[i].kind == ASCII_KEYSTROKE_EVENT |
9343ab07 | 6817 | && buf[i].code == quit_char) |
284f4730 JB |
6818 | break; |
6819 | } | |
6820 | ||
6821 | return nread; | |
6822 | } | |
6823 | #endif /* not VMS */ | |
6824 | \f | |
6825 | #ifdef SIGIO /* for entire page */ | |
6826 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6827 | ||
4216b545 | 6828 | static SIGTYPE |
284f4730 JB |
6829 | input_available_signal (signo) |
6830 | int signo; | |
6831 | { | |
6832 | /* Must preserve main program's value of errno. */ | |
6833 | int old_errno = errno; | |
6834 | #ifdef BSD4_1 | |
6835 | extern int select_alarmed; | |
6836 | #endif | |
6837 | ||
5970a8cb | 6838 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6839 | /* USG systems forget handlers when they are used; |
6840 | must reestablish each time */ | |
6841 | signal (signo, input_available_signal); | |
6842 | #endif /* USG */ | |
6843 | ||
6844 | #ifdef BSD4_1 | |
6845 | sigisheld (SIGIO); | |
6846 | #endif | |
6847 | ||
ffd56f97 JB |
6848 | if (input_available_clear_time) |
6849 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
6850 | |
6851 | while (1) | |
6852 | { | |
6853 | int nread; | |
6854 | nread = read_avail_input (1); | |
6855 | /* -1 means it's not ok to read the input now. | |
6856 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6857 | 0 means there was no keyboard input available. */ | |
6858 | if (nread <= 0) | |
6859 | break; | |
6860 | ||
6861 | #ifdef BSD4_1 | |
6862 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6863 | #endif | |
6864 | } | |
6865 | ||
6866 | #ifdef BSD4_1 | |
6867 | sigfree (); | |
6868 | #endif | |
6869 | errno = old_errno; | |
6870 | } | |
6871 | #endif /* SIGIO */ | |
ad163903 JB |
6872 | |
6873 | /* Send ourselves a SIGIO. | |
6874 | ||
6875 | This function exists so that the UNBLOCK_INPUT macro in | |
6876 | blockinput.h can have some way to take care of input we put off | |
6877 | dealing with, without assuming that every file which uses | |
6878 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6879 | void | |
6880 | reinvoke_input_signal () | |
6881 | { | |
df0f2ba1 | 6882 | #ifdef SIGIO |
87dd9b9b | 6883 | kill (getpid (), SIGIO); |
ad163903 JB |
6884 | #endif |
6885 | } | |
6886 | ||
6887 | ||
284f4730 | 6888 | \f |
318ab85c SM |
6889 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
6890 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
6891 | |
6892 | /* These variables hold the vector under construction within | |
6893 | menu_bar_items and its subroutines, and the current index | |
6894 | for storing into that vector. */ | |
6895 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6896 | static int menu_bar_items_index; |
5ec75a55 | 6897 | |
b7c49376 RS |
6898 | /* Return a vector of menu items for a menu bar, appropriate |
6899 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6900 | KEY STRING MAPLIST. |
b7c49376 RS |
6901 | |
6902 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6903 | |
6904 | Lisp_Object | |
b7c49376 RS |
6905 | menu_bar_items (old) |
6906 | Lisp_Object old; | |
5ec75a55 RS |
6907 | { |
6908 | /* The number of keymaps we're scanning right now, and the number of | |
6909 | keymaps we have allocated space for. */ | |
6910 | int nmaps; | |
6911 | ||
6912 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6913 | in the current keymaps, or nil where it is not a prefix. */ | |
6914 | Lisp_Object *maps; | |
6915 | ||
aebfea68 | 6916 | Lisp_Object def, tail; |
5ec75a55 RS |
6917 | |
6918 | Lisp_Object result; | |
6919 | ||
6920 | int mapno; | |
47d319aa | 6921 | Lisp_Object oquit; |
5ec75a55 | 6922 | |
b7c49376 RS |
6923 | int i; |
6924 | ||
6925 | struct gcpro gcpro1; | |
6926 | ||
db60d856 JB |
6927 | /* In order to build the menus, we need to call the keymap |
6928 | accessors. They all call QUIT. But this function is called | |
6929 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6930 | quitting while building the menus. |
6931 | We do this instead of specbind because (1) errors will clear it anyway | |
6932 | and (2) this avoids risk of specpdl overflow. */ | |
6933 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6934 | Vinhibit_quit = Qt; |
db60d856 | 6935 | |
b7c49376 RS |
6936 | if (!NILP (old)) |
6937 | menu_bar_items_vector = old; | |
6938 | else | |
6939 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6940 | menu_bar_items_index = 0; | |
6941 | ||
6942 | GCPRO1 (menu_bar_items_vector); | |
6943 | ||
5ec75a55 RS |
6944 | /* Build our list of keymaps. |
6945 | If we recognize a function key and replace its escape sequence in | |
6946 | keybuf with its symbol, or if the sequence starts with a mouse | |
6947 | click and we need to switch buffers, we jump back here to rebuild | |
6948 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6949 | { |
5ec75a55 RS |
6950 | Lisp_Object *tmaps; |
6951 | ||
217258d5 | 6952 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6953 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6954 | { |
217258d5 KH |
6955 | /* Yes, use them (if non-nil) as well as the global map. */ |
6956 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6957 | nmaps = 0; | |
6958 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6959 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6960 | if (!NILP (Voverriding_local_map)) | |
6961 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6962 | } |
6963 | else | |
6964 | { | |
fd646341 KS |
6965 | /* No, so use major and minor mode keymaps and keymap property. |
6966 | Note that menu-bar bindings in the local-map and keymap | |
6967 | properties may not work reliable, as they are only | |
6968 | recognized when the menu-bar (or mode-line) is updated, | |
6969 | which does not normally happen after every command. */ | |
6970 | Lisp_Object tem; | |
6971 | int nminor; | |
6972 | nminor = current_minor_maps (NULL, &tmaps); | |
6973 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6974 | nmaps = 0; | |
6975 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6976 | maps[nmaps++] = tem; | |
6977 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6978 | nmaps += nminor; | |
6979 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6980 | } |
217258d5 | 6981 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6982 | } |
6983 | ||
6984 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6985 | ||
6986 | result = Qnil; | |
6987 | ||
e58aa385 | 6988 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6989 | if (!NILP (maps[mapno])) |
6990 | { | |
341a09cf SM |
6991 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6992 | 0, 1); | |
02067692 | 6993 | if (CONSP (def)) |
4216b545 SM |
6994 | { |
6995 | menu_bar_one_keymap_changed_items = Qnil; | |
6996 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
6997 | } | |
25126faa | 6998 | } |
5ec75a55 | 6999 | |
b7c49376 RS |
7000 | /* Move to the end those items that should be at the end. */ |
7001 | ||
7539e11f | 7002 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7003 | { |
b7c49376 RS |
7004 | int i; |
7005 | int end = menu_bar_items_index; | |
7006 | ||
35b3402f | 7007 | for (i = 0; i < end; i += 4) |
7539e11f | 7008 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7009 | { |
35b3402f | 7010 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7011 | /* Move the item at index I to the end, |
7012 | shifting all the others forward. */ | |
7013 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7014 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7015 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7016 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7017 | if (end > i + 4) | |
7018 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7019 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7020 | (end - i - 4) * sizeof (Lisp_Object)); |
7021 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7022 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7023 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7024 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7025 | break; |
b7c49376 RS |
7026 | } |
7027 | } | |
9f9c0e27 | 7028 | |
0c9071cd | 7029 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7030 | i = menu_bar_items_index; |
35b3402f | 7031 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7032 | { |
7033 | Lisp_Object tem; | |
b7c49376 RS |
7034 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7035 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7036 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7037 | menu_bar_items_vector = tem; | |
9f9c0e27 | 7038 | } |
b7c49376 RS |
7039 | /* Add this item. */ |
7040 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7041 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7042 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7043 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7044 | menu_bar_items_index = i; |
a73c5e29 | 7045 | |
47d319aa | 7046 | Vinhibit_quit = oquit; |
b7c49376 RS |
7047 | UNGCPRO; |
7048 | return menu_bar_items_vector; | |
5ec75a55 RS |
7049 | } |
7050 | \f | |
f5e09c8b RS |
7051 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7052 | If there's already an item for KEY, add this DEF to it. */ | |
7053 | ||
e8886a1d RS |
7054 | Lisp_Object item_properties; |
7055 | ||
b7c49376 | 7056 | static void |
4216b545 SM |
7057 | menu_bar_item (key, item, dummy1, dummy2) |
7058 | Lisp_Object key, item, dummy1; | |
7059 | void *dummy2; | |
5ec75a55 | 7060 | { |
e8886a1d | 7061 | struct gcpro gcpro1; |
b7c49376 | 7062 | int i; |
759860a6 | 7063 | Lisp_Object tem; |
5ec75a55 | 7064 | |
e8886a1d | 7065 | if (EQ (item, Qundefined)) |
e58aa385 | 7066 | { |
f5e09c8b | 7067 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7068 | discard any previously made menu bar item. */ |
b7c49376 | 7069 | |
35b3402f | 7070 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7071 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7072 | { | |
35b3402f RS |
7073 | if (menu_bar_items_index > i + 4) |
7074 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7075 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7076 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7077 | menu_bar_items_index -= 4; | |
b7c49376 | 7078 | } |
e58aa385 RS |
7079 | } |
7080 | ||
759860a6 RS |
7081 | /* If this keymap has already contributed to this KEY, |
7082 | don't contribute to it a second time. */ | |
7083 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7084 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7085 | return; |
7086 | ||
7087 | menu_bar_one_keymap_changed_items | |
7088 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7089 | ||
9cd2ced7 SM |
7090 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7091 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7092 | it still correctly hides any further menu item. */ | |
7093 | GCPRO1 (key); | |
7094 | i = parse_menu_item (item, 0, 1); | |
7095 | UNGCPRO; | |
7096 | if (!i) | |
7097 | return; | |
7098 | ||
e8886a1d RS |
7099 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7100 | ||
f5e09c8b | 7101 | /* Find any existing item for this KEY. */ |
35b3402f | 7102 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7103 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7104 | break; | |
7105 | ||
f5e09c8b | 7106 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7107 | if (i == menu_bar_items_index) |
7108 | { | |
7109 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7110 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7111 | { |
7112 | Lisp_Object tem; | |
b7c49376 RS |
7113 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7114 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7115 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7116 | menu_bar_items_vector = tem; | |
7117 | } | |
e8886a1d | 7118 | |
b7c49376 RS |
7119 | /* Add this item. */ |
7120 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7121 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7122 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7123 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7124 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7125 | menu_bar_items_index = i; |
7126 | } | |
e8886a1d | 7127 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7128 | else |
7129 | { | |
7130 | Lisp_Object old; | |
7131 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7132 | /* If the new and the old items are not both keymaps, |
7133 | the lookup will only find `item'. */ | |
7134 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7135 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7136 | } |
5ec75a55 RS |
7137 | } |
7138 | \f | |
e8886a1d RS |
7139 | /* This is used as the handler when calling menu_item_eval_property. */ |
7140 | static Lisp_Object | |
7141 | menu_item_eval_property_1 (arg) | |
7142 | Lisp_Object arg; | |
7143 | { | |
7144 | /* If we got a quit from within the menu computation, | |
7145 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7146 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7147 | Fsignal (Qquit, Qnil); |
7148 | ||
7149 | return Qnil; | |
7150 | } | |
7151 | ||
c60ee5e7 | 7152 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7153 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7154 | Lisp_Object |
e8886a1d RS |
7155 | menu_item_eval_property (sexpr) |
7156 | Lisp_Object sexpr; | |
7157 | { | |
aed13378 | 7158 | int count = SPECPDL_INDEX (); |
e8886a1d | 7159 | Lisp_Object val; |
44e553a3 | 7160 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7161 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7162 | menu_item_eval_property_1); | |
44e553a3 | 7163 | return unbind_to (count, val); |
e8886a1d RS |
7164 | } |
7165 | ||
7166 | /* This function parses a menu item and leaves the result in the | |
7167 | vector item_properties. | |
7168 | ITEM is a key binding, a possible menu item. | |
7169 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7170 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7171 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7172 | top level. |
fd3613d7 | 7173 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7174 | parse_menu_item returns true if the item is a menu item and false |
7175 | otherwise. */ | |
7176 | ||
7177 | int | |
7178 | parse_menu_item (item, notreal, inmenubar) | |
7179 | Lisp_Object item; | |
7180 | int notreal, inmenubar; | |
7181 | { | |
adc1d5c8 | 7182 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7183 | Lisp_Object cachelist; |
7184 | Lisp_Object filter; | |
7185 | Lisp_Object keyhint; | |
e8886a1d | 7186 | int i; |
74c1de23 RS |
7187 | int newcache = 0; |
7188 | ||
07ba902e RS |
7189 | cachelist = Qnil; |
7190 | filter = Qnil; | |
7191 | keyhint = Qnil; | |
7192 | ||
e8886a1d RS |
7193 | if (!CONSP (item)) |
7194 | return 0; | |
7195 | ||
e8886a1d RS |
7196 | /* Create item_properties vector if necessary. */ |
7197 | if (NILP (item_properties)) | |
7198 | item_properties | |
7199 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7200 | ||
7201 | /* Initialize optional entries. */ | |
7202 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
7203 | AREF (item_properties, i) = Qnil; |
7204 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
c60ee5e7 | 7205 | |
e8886a1d | 7206 | /* Save the item here to protect it from GC. */ |
3626fb1a | 7207 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 7208 | |
7539e11f | 7209 | item_string = XCAR (item); |
e8886a1d RS |
7210 | |
7211 | start = item; | |
7539e11f | 7212 | item = XCDR (item); |
e8886a1d RS |
7213 | if (STRINGP (item_string)) |
7214 | { | |
7215 | /* Old format menu item. */ | |
3626fb1a | 7216 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
7217 | |
7218 | /* Maybe help string. */ | |
7539e11f | 7219 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7220 | { |
3626fb1a | 7221 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7222 | start = item; |
7539e11f | 7223 | item = XCDR (item); |
e8886a1d | 7224 | } |
c60ee5e7 | 7225 | |
31f84d03 | 7226 | /* Maybe key binding cache. */ |
7539e11f KR |
7227 | if (CONSP (item) && CONSP (XCAR (item)) |
7228 | && (NILP (XCAR (XCAR (item))) | |
7229 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7230 | { |
7539e11f KR |
7231 | cachelist = XCAR (item); |
7232 | item = XCDR (item); | |
e8886a1d | 7233 | } |
c60ee5e7 | 7234 | |
e8886a1d | 7235 | /* This is the real definition--the function to run. */ |
3626fb1a | 7236 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
7237 | |
7238 | /* Get enable property, if any. */ | |
7239 | if (SYMBOLP (item)) | |
7240 | { | |
7241 | tem = Fget (item, Qmenu_enable); | |
7242 | if (!NILP (tem)) | |
3626fb1a | 7243 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7244 | } |
7245 | } | |
7246 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7247 | { | |
7248 | /* New format menu item. */ | |
3626fb1a | 7249 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 7250 | start = XCDR (item); |
e8886a1d RS |
7251 | if (CONSP (start)) |
7252 | { | |
7253 | /* We have a real binding. */ | |
3626fb1a | 7254 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 7255 | |
7539e11f | 7256 | item = XCDR (start); |
e8886a1d | 7257 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7258 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7259 | { |
7539e11f KR |
7260 | cachelist = XCAR (item); |
7261 | item = XCDR (item); | |
e8886a1d RS |
7262 | } |
7263 | ||
7264 | /* Parse properties. */ | |
7539e11f | 7265 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7266 | { |
7539e11f KR |
7267 | tem = XCAR (item); |
7268 | item = XCDR (item); | |
e8886a1d RS |
7269 | |
7270 | if (EQ (tem, QCenable)) | |
3626fb1a | 7271 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
7272 | else if (EQ (tem, QCvisible) && !notreal) |
7273 | { | |
7274 | /* If got a visible property and that evaluates to nil | |
7275 | then ignore this item. */ | |
7539e11f | 7276 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7277 | if (NILP (tem)) |
adc1d5c8 | 7278 | return 0; |
e8886a1d RS |
7279 | } |
7280 | else if (EQ (tem, QChelp)) | |
3626fb1a | 7281 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7282 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7283 | filter = item; |
7284 | else if (EQ (tem, QCkey_sequence)) | |
7285 | { | |
7539e11f | 7286 | tem = XCAR (item); |
74c1de23 RS |
7287 | if (NILP (cachelist) |
7288 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7289 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7290 | keyhint = item; | |
7291 | } | |
7292 | else if (EQ (tem, QCkeys)) | |
7293 | { | |
7539e11f | 7294 | tem = XCAR (item); |
03cee6ae | 7295 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 7296 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 7297 | } |
7539e11f | 7298 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7299 | { |
74c1de23 | 7300 | Lisp_Object type; |
7539e11f KR |
7301 | tem = XCAR (item); |
7302 | type = XCAR (tem); | |
e8886a1d RS |
7303 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7304 | { | |
3626fb1a | 7305 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 7306 | = XCDR (tem); |
3626fb1a | 7307 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
7308 | = type; |
7309 | } | |
7310 | } | |
7539e11f | 7311 | item = XCDR (item); |
e8886a1d RS |
7312 | } |
7313 | } | |
7314 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7315 | return 0; |
e8886a1d RS |
7316 | } |
7317 | else | |
adc1d5c8 | 7318 | return 0; /* not a menu item */ |
e8886a1d RS |
7319 | |
7320 | /* If item string is not a string, evaluate it to get string. | |
7321 | If we don't get a string, skip this item. */ | |
3626fb1a | 7322 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7323 | if (!(STRINGP (item_string) || notreal)) |
7324 | { | |
7325 | item_string = menu_item_eval_property (item_string); | |
7326 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7327 | return 0; |
3626fb1a | 7328 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d | 7329 | } |
c60ee5e7 | 7330 | |
e8886a1d | 7331 | /* If got a filter apply it on definition. */ |
3626fb1a | 7332 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7333 | if (!NILP (filter)) |
7334 | { | |
7539e11f | 7335 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7336 | list2 (Qquote, def))); |
7337 | ||
3626fb1a | 7338 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
7339 | } |
7340 | ||
e8886a1d | 7341 | /* Enable or disable selection of item. */ |
3626fb1a | 7342 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7343 | if (!EQ (tem, Qt)) |
7344 | { | |
7345 | if (notreal) | |
7346 | tem = Qt; | |
7347 | else | |
7348 | tem = menu_item_eval_property (tem); | |
7349 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7350 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7351 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7352 | } |
7353 | ||
7189cad8 SM |
7354 | /* If we got no definition, this item is just unselectable text which |
7355 | is OK in a submenu but not in the menubar. */ | |
7356 | if (NILP (def)) | |
7357 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7358 | |
e8886a1d | 7359 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7360 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7361 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7362 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7363 | if (CONSP (tem)) |
e8886a1d | 7364 | { |
3626fb1a GM |
7365 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7366 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7367 | return 1; |
7368 | } | |
c60ee5e7 | 7369 | |
9ac425d1 RS |
7370 | /* At the top level in the menu bar, do likewise for commands also. |
7371 | The menu bar does not display equivalent key bindings anyway. | |
7372 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7373 | if (inmenubar > 0) | |
7374 | return 1; | |
e8886a1d RS |
7375 | |
7376 | /* This is a command. See if there is an equivalent key binding. */ | |
7377 | if (NILP (cachelist)) | |
7378 | { | |
74c1de23 | 7379 | /* We have to create a cachelist. */ |
e8886a1d | 7380 | CHECK_IMPURE (start); |
f3fbd155 | 7381 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7382 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7383 | newcache = 1; |
3626fb1a | 7384 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7385 | if (!NILP (keyhint)) |
7386 | { | |
f3fbd155 | 7387 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7388 | newcache = 0; |
7389 | } | |
7390 | else if (STRINGP (tem)) | |
7391 | { | |
f3fbd155 KR |
7392 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7393 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7394 | } |
7395 | } | |
c60ee5e7 | 7396 | |
7539e11f | 7397 | tem = XCAR (cachelist); |
74c1de23 RS |
7398 | if (!EQ (tem, Qt)) |
7399 | { | |
7400 | int chkcache = 0; | |
7401 | Lisp_Object prefix; | |
7402 | ||
7403 | if (!NILP (tem)) | |
8b9940e6 | 7404 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7405 | |
3626fb1a | 7406 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7407 | if (CONSP (prefix)) |
7408 | { | |
7539e11f KR |
7409 | def = XCAR (prefix); |
7410 | prefix = XCDR (prefix); | |
74c1de23 | 7411 | } |
e8886a1d | 7412 | else |
3626fb1a | 7413 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7414 | |
3626fb1a GM |
7415 | if (!update_menu_bindings) |
7416 | chkcache = 0; | |
7417 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7418 | { |
7419 | if (newcache /* Always check first time. */ | |
7420 | /* Should we check everything when precomputing key | |
7421 | bindings? */ | |
74c1de23 RS |
7422 | /* If something had no key binding before, don't recheck it |
7423 | because that is too slow--except if we have a list of | |
7424 | rebound commands in Vdefine_key_rebound_commands, do | |
7425 | recheck any command that appears in that list. */ | |
7426 | || (CONSP (Vdefine_key_rebound_commands) | |
7427 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7428 | chkcache = 1; | |
7429 | } | |
7430 | /* We had a saved key. Is it still bound to the command? */ | |
7431 | else if (NILP (tem) | |
03cee6ae GM |
7432 | || (!EQ (tem, def) |
7433 | /* If the command is an alias for another | |
7434 | (such as lmenu.el set it up), check if the | |
7435 | original command matches the cached command. */ | |
7436 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7437 | chkcache = 1; /* Need to recompute key binding. */ |
7438 | ||
7439 | if (chkcache) | |
7440 | { | |
7441 | /* Recompute equivalent key binding. If the command is an alias | |
7442 | for another (such as lmenu.el set it up), see if the original | |
7443 | command name has equivalent keys. Otherwise look up the | |
7444 | specified command itself. We don't try both, because that | |
7445 | makes lmenu menus slow. */ | |
3626fb1a GM |
7446 | if (SYMBOLP (def) |
7447 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7448 | && ! NILP (Fget (def, Qmenu_alias))) |
7449 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7450 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7451 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7452 | if (NILP (tem)) |
7453 | { | |
f3fbd155 | 7454 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7455 | chkcache = 0; |
7456 | } | |
7457 | } | |
7539e11f | 7458 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7459 | { |
7539e11f | 7460 | tem = XCAR (cachelist); |
74c1de23 RS |
7461 | chkcache = 1; |
7462 | } | |
7463 | ||
7464 | newcache = chkcache; | |
7465 | if (chkcache) | |
7466 | { | |
7467 | tem = Fkey_description (tem); | |
7468 | if (CONSP (prefix)) | |
7469 | { | |
7539e11f KR |
7470 | if (STRINGP (XCAR (prefix))) |
7471 | tem = concat2 (XCAR (prefix), tem); | |
7472 | if (STRINGP (XCDR (prefix))) | |
7473 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7474 | } |
f3fbd155 | 7475 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7476 | } |
7477 | } | |
7478 | ||
7539e11f | 7479 | tem = XCDR (cachelist); |
74c1de23 | 7480 | if (newcache && !NILP (tem)) |
e8886a1d | 7481 | { |
74c1de23 | 7482 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7483 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7484 | } |
7485 | ||
7486 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7487 | if (notreal) | |
adc1d5c8 | 7488 | return 1; |
e8886a1d RS |
7489 | |
7490 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7491 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7492 | |
7493 | /* Include this when menu help is implemented. | |
7494 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7495 | if (!(NILP (tem) || STRINGP (tem))) | |
7496 | { | |
7497 | tem = menu_item_eval_property (tem); | |
7498 | if (!STRINGP (tem)) | |
7499 | tem = Qnil; | |
7500 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7501 | } | |
e8886a1d RS |
7502 | */ |
7503 | ||
c60ee5e7 | 7504 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 7505 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7506 | if (!NILP (tem)) |
3626fb1a | 7507 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7508 | = menu_item_eval_property (tem); |
7509 | ||
e8886a1d RS |
7510 | return 1; |
7511 | } | |
7ee32cda GM |
7512 | |
7513 | ||
7514 | \f | |
7515 | /*********************************************************************** | |
7516 | Tool-bars | |
7517 | ***********************************************************************/ | |
7518 | ||
9ea173e8 | 7519 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7520 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7521 | in the vector. */ |
7ee32cda | 7522 | |
9ea173e8 | 7523 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7524 | |
9ea173e8 GM |
7525 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7526 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7527 | |
9ea173e8 | 7528 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7529 | |
9ea173e8 | 7530 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7531 | |
9ea173e8 | 7532 | static int ntool_bar_items; |
7ee32cda | 7533 | |
9ea173e8 | 7534 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7535 | |
9ea173e8 | 7536 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7537 | Lisp_Object QCimage; |
7538 | ||
7539 | /* Function prototypes. */ | |
7540 | ||
9ea173e8 GM |
7541 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7542 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7543 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7544 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7545 | |
7546 | ||
9ea173e8 | 7547 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7548 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7549 | tool bar items found. */ |
7ee32cda GM |
7550 | |
7551 | Lisp_Object | |
9ea173e8 | 7552 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7553 | Lisp_Object reuse; |
7554 | int *nitems; | |
7555 | { | |
7556 | Lisp_Object *maps; | |
7557 | int nmaps, i; | |
7558 | Lisp_Object oquit; | |
7559 | Lisp_Object *tmaps; | |
7ee32cda GM |
7560 | |
7561 | *nitems = 0; | |
7562 | ||
7563 | /* In order to build the menus, we need to call the keymap | |
7564 | accessors. They all call QUIT. But this function is called | |
7565 | during redisplay, during which a quit is fatal. So inhibit | |
7566 | quitting while building the menus. We do this instead of | |
7567 | specbind because (1) errors will clear it anyway and (2) this | |
7568 | avoids risk of specpdl overflow. */ | |
7569 | oquit = Vinhibit_quit; | |
7570 | Vinhibit_quit = Qt; | |
c60ee5e7 | 7571 | |
9ea173e8 GM |
7572 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7573 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7574 | |
7575 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7576 | to process. */ | |
c60ee5e7 | 7577 | |
7ee32cda GM |
7578 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
7579 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7580 | { | |
7581 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7582 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7583 | nmaps = 0; | |
7584 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7585 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7586 | if (!NILP (Voverriding_local_map)) | |
7587 | maps[nmaps++] = Voverriding_local_map; | |
7588 | } | |
7589 | else | |
7590 | { | |
fd646341 KS |
7591 | /* No, so use major and minor mode keymaps and keymap property. |
7592 | Note that tool-bar bindings in the local-map and keymap | |
7593 | properties may not work reliable, as they are only | |
7594 | recognized when the tool-bar (or mode-line) is updated, | |
7595 | which does not normally happen after every command. */ | |
7596 | Lisp_Object tem; | |
7597 | int nminor; | |
7598 | nminor = current_minor_maps (NULL, &tmaps); | |
7599 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7600 | nmaps = 0; | |
7601 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7602 | maps[nmaps++] = tem; | |
7603 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7604 | nmaps += nminor; | |
7605 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7606 | } |
7607 | ||
7608 | /* Add global keymap at the end. */ | |
7609 | maps[nmaps++] = current_global_map; | |
7610 | ||
7611 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7612 | key `tool-bar'. */ |
7ee32cda GM |
7613 | for (i = nmaps - 1; i >= 0; --i) |
7614 | if (!NILP (maps[i])) | |
7615 | { | |
7616 | Lisp_Object keymap; | |
db785038 | 7617 | |
341a09cf | 7618 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7619 | if (CONSP (keymap)) |
7ee32cda GM |
7620 | { |
7621 | Lisp_Object tail; | |
c60ee5e7 | 7622 | |
7ee32cda | 7623 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ |
7539e11f | 7624 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7625 | { |
7626 | Lisp_Object keydef = XCAR (tail); | |
7627 | if (CONSP (keydef)) | |
9ea173e8 | 7628 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7629 | } |
7630 | } | |
7631 | } | |
7632 | ||
7633 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7634 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7635 | return tool_bar_items_vector; | |
7ee32cda GM |
7636 | } |
7637 | ||
7638 | ||
7639 | /* Process the definition of KEY which is DEF. */ | |
7640 | ||
7641 | static void | |
9ea173e8 | 7642 | process_tool_bar_item (key, def) |
7ee32cda GM |
7643 | Lisp_Object key, def; |
7644 | { | |
7645 | int i; | |
7646 | extern Lisp_Object Qundefined; | |
7647 | struct gcpro gcpro1, gcpro2; | |
7648 | ||
9ea173e8 | 7649 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7650 | eval. */ |
7651 | GCPRO2 (key, def); | |
7652 | ||
7653 | if (EQ (def, Qundefined)) | |
7654 | { | |
7655 | /* If a map has an explicit `undefined' as definition, | |
7656 | discard any previously made item. */ | |
9ea173e8 | 7657 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7658 | { |
9ea173e8 | 7659 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 7660 | |
9ea173e8 | 7661 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7662 | { |
9ea173e8 GM |
7663 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7664 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7665 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7666 | * sizeof (Lisp_Object))); |
9ea173e8 | 7667 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7668 | break; |
7669 | } | |
7670 | } | |
7671 | } | |
9ea173e8 GM |
7672 | else if (parse_tool_bar_item (key, def)) |
7673 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7674 | more than one definition for the same key. */ |
9ea173e8 | 7675 | append_tool_bar_item (); |
7ee32cda GM |
7676 | |
7677 | UNGCPRO; | |
7678 | } | |
7679 | ||
7680 | ||
9ea173e8 GM |
7681 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7682 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7683 | invalid. |
7684 | ||
7685 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 7686 | |
7ee32cda GM |
7687 | CAPTION is the caption of the item, If it's not a string, it is |
7688 | evaluated to get a string. | |
c60ee5e7 | 7689 | |
9ea173e8 | 7690 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7691 | as binding are currently ignored. |
7692 | ||
7693 | The following properties are recognized: | |
7694 | ||
7695 | - `:enable FORM'. | |
c60ee5e7 | 7696 | |
9ea173e8 GM |
7697 | FORM is evaluated and specifies whether the tool bar item is |
7698 | enabled or disabled. | |
c60ee5e7 | 7699 | |
7ee32cda | 7700 | - `:visible FORM' |
c60ee5e7 | 7701 | |
9ea173e8 | 7702 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 7703 | |
7ee32cda GM |
7704 | - `:filter FUNCTION' |
7705 | ||
7706 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7707 | result is stored as the new binding. | |
c60ee5e7 | 7708 | |
7ee32cda GM |
7709 | - `:button (TYPE SELECTED)' |
7710 | ||
7711 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7712 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 7713 | |
7ee32cda GM |
7714 | - `:image IMAGES' |
7715 | ||
7716 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7717 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 7718 | |
7ee32cda | 7719 | - `:help HELP-STRING'. |
c60ee5e7 | 7720 | |
9ea173e8 | 7721 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7722 | |
7723 | static int | |
9ea173e8 | 7724 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7725 | Lisp_Object key, item; |
7726 | { | |
9ea173e8 GM |
7727 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7728 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7729 | |
7730 | Lisp_Object filter = Qnil; | |
7731 | Lisp_Object caption; | |
7ee32cda | 7732 | int i; |
7ee32cda | 7733 | |
8c907a56 GM |
7734 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7735 | Rule out items that aren't lists, don't start with | |
7736 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7737 | list. */ |
7738 | if (!CONSP (item) | |
7739 | || !EQ (XCAR (item), Qmenu_item) | |
7740 | || (item = XCDR (item), | |
7741 | !CONSP (item))) | |
7742 | return 0; | |
7743 | ||
9ea173e8 | 7744 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7745 | defaults. */ |
9ea173e8 | 7746 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7747 | { |
9ea173e8 | 7748 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7749 | PROP (i) = Qnil; |
7750 | } | |
7751 | else | |
9ea173e8 GM |
7752 | tool_bar_item_properties |
7753 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 7754 | |
7ee32cda | 7755 | /* Set defaults. */ |
9ea173e8 GM |
7756 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7757 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 7758 | |
7ee32cda GM |
7759 | /* Get the caption of the item. If the caption is not a string, |
7760 | evaluate it to get a string. If we don't get a string, skip this | |
7761 | item. */ | |
7762 | caption = XCAR (item); | |
7763 | if (!STRINGP (caption)) | |
7764 | { | |
7765 | caption = menu_item_eval_property (caption); | |
7766 | if (!STRINGP (caption)) | |
7767 | return 0; | |
7768 | } | |
9ea173e8 | 7769 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7770 | |
7771 | /* Give up if rest following the caption is not a list. */ | |
7772 | item = XCDR (item); | |
7773 | if (!CONSP (item)) | |
7774 | return 0; | |
7775 | ||
7776 | /* Store the binding. */ | |
9ea173e8 | 7777 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7778 | item = XCDR (item); |
7779 | ||
8c907a56 GM |
7780 | /* Ignore cached key binding, if any. */ |
7781 | if (CONSP (item) && CONSP (XCAR (item))) | |
7782 | item = XCDR (item); | |
7783 | ||
7ee32cda GM |
7784 | /* Process the rest of the properties. */ |
7785 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7786 | { | |
7787 | Lisp_Object key, value; | |
7788 | ||
7789 | key = XCAR (item); | |
7790 | value = XCAR (XCDR (item)); | |
7791 | ||
7792 | if (EQ (key, QCenable)) | |
7793 | /* `:enable FORM'. */ | |
9ea173e8 | 7794 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7795 | else if (EQ (key, QCvisible)) |
7796 | { | |
7797 | /* `:visible FORM'. If got a visible property and that | |
7798 | evaluates to nil then ignore this item. */ | |
7799 | if (NILP (menu_item_eval_property (value))) | |
7800 | return 0; | |
7801 | } | |
7802 | else if (EQ (key, QChelp)) | |
7803 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7804 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7805 | else if (EQ (key, QCfilter)) |
7806 | /* ':filter FORM'. */ | |
7807 | filter = value; | |
7808 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7809 | { | |
7810 | /* `:button (TYPE . SELECTED)'. */ | |
7811 | Lisp_Object type, selected; | |
7812 | ||
7813 | type = XCAR (value); | |
7814 | selected = XCDR (value); | |
7815 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7816 | { | |
9ea173e8 GM |
7817 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7818 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7819 | } |
7820 | } | |
7821 | else if (EQ (key, QCimage) | |
7822 | && (CONSP (value) | |
7823 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7824 | /* Value is either a single image specification or a vector | |
27fd22dc | 7825 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7826 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7827 | } |
7828 | ||
7829 | /* If got a filter apply it on binding. */ | |
7830 | if (!NILP (filter)) | |
9ea173e8 | 7831 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7832 | = menu_item_eval_property (list2 (filter, |
7833 | list2 (Qquote, | |
9ea173e8 | 7834 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7835 | |
7836 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7837 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7838 | return 0; |
7839 | ||
7840 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7841 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7842 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7843 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 7844 | |
c60ee5e7 | 7845 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
7846 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7847 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7848 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7849 | |
7850 | return 1; | |
c60ee5e7 | 7851 | |
7ee32cda GM |
7852 | #undef PROP |
7853 | } | |
7854 | ||
7855 | ||
9ea173e8 GM |
7856 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7857 | that can be reused. */ | |
7ee32cda GM |
7858 | |
7859 | static void | |
9ea173e8 | 7860 | init_tool_bar_items (reuse) |
7ee32cda GM |
7861 | Lisp_Object reuse; |
7862 | { | |
7863 | if (VECTORP (reuse)) | |
9ea173e8 | 7864 | tool_bar_items_vector = reuse; |
7ee32cda | 7865 | else |
9ea173e8 GM |
7866 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7867 | ntool_bar_items = 0; | |
7ee32cda GM |
7868 | } |
7869 | ||
7870 | ||
9ea173e8 GM |
7871 | /* Append parsed tool bar item properties from |
7872 | tool_bar_item_properties */ | |
7ee32cda GM |
7873 | |
7874 | static void | |
9ea173e8 | 7875 | append_tool_bar_item () |
7ee32cda GM |
7876 | { |
7877 | Lisp_Object *to, *from; | |
c60ee5e7 | 7878 | |
9ea173e8 GM |
7879 | /* Enlarge tool_bar_items_vector if necessary. */ |
7880 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7881 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7882 | { |
7883 | Lisp_Object new_vector; | |
9ea173e8 | 7884 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7885 | |
7886 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7887 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7888 | XVECTOR (new_vector)->contents, |
7889 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7890 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7891 | } |
7892 | ||
9ea173e8 GM |
7893 | /* Append entries from tool_bar_item_properties to the end of |
7894 | tool_bar_items_vector. */ | |
7895 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7896 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7897 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7898 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7899 | } |
7900 | ||
7901 | ||
7902 | ||
7903 | ||
e8886a1d | 7904 | \f |
dcc408a0 RS |
7905 | /* Read a character using menus based on maps in the array MAPS. |
7906 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7907 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7908 | |
7909 | PREV_EVENT is the previous input event, or nil if we are reading | |
7910 | the first event of a key sequence. | |
7911 | ||
83d68044 | 7912 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7913 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7914 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7915 | |
7916 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7917 | and the strings associated with various map elements. |
8150596a RS |
7918 | |
7919 | This can be done with X menus or with menus put in the minibuf. | |
7920 | These are done in different ways, depending on how the input will be read. | |
7921 | Menus using X are done after auto-saving in read-char, getting the input | |
7922 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7923 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7924 | |
7617111f | 7925 | static Lisp_Object |
8150596a | 7926 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7927 | int nmaps; |
7928 | Lisp_Object *maps; | |
7929 | Lisp_Object prev_event; | |
7930 | int *used_mouse_menu; | |
284f4730 | 7931 | { |
7d6de002 | 7932 | int mapno; |
14e40288 | 7933 | register Lisp_Object name = Qnil; |
7d6de002 | 7934 | |
6569cc8d JB |
7935 | if (used_mouse_menu) |
7936 | *used_mouse_menu = 0; | |
284f4730 JB |
7937 | |
7938 | /* Use local over global Menu maps */ | |
7939 | ||
7d6de002 RS |
7940 | if (! menu_prompting) |
7941 | return Qnil; | |
7942 | ||
03361bcc RS |
7943 | /* Optionally disregard all but the global map. */ |
7944 | if (inhibit_local_menu_bar_menus) | |
7945 | { | |
7946 | maps += (nmaps - 1); | |
7947 | nmaps = 1; | |
7948 | } | |
7949 | ||
7d6de002 RS |
7950 | /* Get the menu name from the first map that has one (a prompt string). */ |
7951 | for (mapno = 0; mapno < nmaps; mapno++) | |
7952 | { | |
bdb7aa47 | 7953 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7954 | if (!NILP (name)) |
7955 | break; | |
7956 | } | |
284f4730 | 7957 | |
7d6de002 | 7958 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 7959 | if (!STRINGP (name)) |
7d6de002 RS |
7960 | return Qnil; |
7961 | ||
1f5b1641 | 7962 | #ifdef HAVE_MENUS |
7d6de002 RS |
7963 | /* If we got to this point via a mouse click, |
7964 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7965 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7966 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7967 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7968 | { |
7969 | /* Display the menu and get the selection. */ | |
7970 | Lisp_Object *realmaps | |
7971 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7972 | Lisp_Object value; | |
7973 | int nmaps1 = 0; | |
7974 | ||
7975 | /* Use the maps that are not nil. */ | |
7976 | for (mapno = 0; mapno < nmaps; mapno++) | |
7977 | if (!NILP (maps[mapno])) | |
7978 | realmaps[nmaps1++] = maps[mapno]; | |
7979 | ||
7980 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7981 | if (CONSP (value)) |
7982 | { | |
68f297c5 RS |
7983 | Lisp_Object tem; |
7984 | ||
7539e11f | 7985 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7986 | |
68f297c5 RS |
7987 | /* If we got multiple events, unread all but |
7988 | the first. | |
7989 | There is no way to prevent those unread events | |
7990 | from showing up later in last_nonmenu_event. | |
7991 | So turn symbol and integer events into lists, | |
7992 | to indicate that they came from a mouse menu, | |
7993 | so that when present in last_nonmenu_event | |
7994 | they won't confuse things. */ | |
f4e05d97 | 7995 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7996 | { |
7539e11f KR |
7997 | record_menu_key (XCAR (tem)); |
7998 | if (SYMBOLP (XCAR (tem)) | |
7999 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8000 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8001 | } |
68f297c5 | 8002 | |
663258f2 JB |
8003 | /* If we got more than one event, put all but the first |
8004 | onto this list to be read later. | |
8005 | Return just the first event now. */ | |
24597608 | 8006 | Vunread_command_events |
7539e11f KR |
8007 | = nconc2 (XCDR (value), Vunread_command_events); |
8008 | value = XCAR (value); | |
663258f2 | 8009 | } |
1c90c381 | 8010 | else if (NILP (value)) |
dcc408a0 | 8011 | value = Qt; |
6569cc8d JB |
8012 | if (used_mouse_menu) |
8013 | *used_mouse_menu = 1; | |
7d6de002 RS |
8014 | return value; |
8015 | } | |
1f5b1641 | 8016 | #endif /* HAVE_MENUS */ |
8150596a RS |
8017 | return Qnil ; |
8018 | } | |
8019 | ||
af2b7cc9 KS |
8020 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8021 | We make this bigger when necessary, and never free it. */ | |
8022 | static char *read_char_minibuf_menu_text; | |
8023 | /* Size of that buffer. */ | |
8024 | static int read_char_minibuf_menu_width; | |
8025 | ||
8150596a | 8026 | static Lisp_Object |
24597608 | 8027 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8028 | int commandflag ; |
8029 | int nmaps; | |
8030 | Lisp_Object *maps; | |
8031 | { | |
8032 | int mapno; | |
8033 | register Lisp_Object name; | |
af2b7cc9 | 8034 | int nlength; |
14e40288 | 8035 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8036 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8037 | int idx = -1; |
af2b7cc9 | 8038 | int nobindings = 1; |
8150596a | 8039 | Lisp_Object rest, vector; |
af2b7cc9 | 8040 | char *menu; |
8150596a | 8041 | |
8c907a56 | 8042 | vector = Qnil; |
7189cad8 | 8043 | name = Qnil; |
8c907a56 | 8044 | |
8150596a RS |
8045 | if (! menu_prompting) |
8046 | return Qnil; | |
8047 | ||
af2b7cc9 KS |
8048 | /* Make sure we have a big enough buffer for the menu text. */ |
8049 | if (read_char_minibuf_menu_text == 0) | |
8050 | { | |
8051 | read_char_minibuf_menu_width = width + 4; | |
8052 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8053 | } | |
8054 | else if (width + 4 > read_char_minibuf_menu_width) | |
8055 | { | |
8056 | read_char_minibuf_menu_width = width + 4; | |
8057 | read_char_minibuf_menu_text | |
8058 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8059 | } | |
8060 | menu = read_char_minibuf_menu_text; | |
8061 | ||
8150596a RS |
8062 | /* Get the menu name from the first map that has one (a prompt string). */ |
8063 | for (mapno = 0; mapno < nmaps; mapno++) | |
8064 | { | |
bdb7aa47 | 8065 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
8066 | if (!NILP (name)) |
8067 | break; | |
8068 | } | |
8069 | ||
8070 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 8071 | if (!STRINGP (name)) |
8150596a | 8072 | return Qnil; |
284f4730 | 8073 | |
af2b7cc9 | 8074 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8075 | strcpy (menu, SDATA (name)); |
8076 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8077 | menu[nlength++] = ':'; |
8078 | menu[nlength++] = ' '; | |
8079 | menu[nlength] = 0; | |
8080 | ||
7d6de002 RS |
8081 | /* Start prompting at start of first map. */ |
8082 | mapno = 0; | |
8083 | rest = maps[mapno]; | |
284f4730 | 8084 | |
af2b7cc9 KS |
8085 | /* Present the documented bindings, a line at a time. */ |
8086 | while (1) | |
284f4730 | 8087 | { |
af2b7cc9 KS |
8088 | int notfirst = 0; |
8089 | int i = nlength; | |
8090 | Lisp_Object obj; | |
8091 | int ch; | |
8092 | Lisp_Object orig_defn_macro; | |
284f4730 | 8093 | |
af2b7cc9 KS |
8094 | /* Loop over elements of map. */ |
8095 | while (i < width) | |
284f4730 | 8096 | { |
af2b7cc9 | 8097 | Lisp_Object elt; |
284f4730 | 8098 | |
af2b7cc9 KS |
8099 | /* If reached end of map, start at beginning of next map. */ |
8100 | if (NILP (rest)) | |
8101 | { | |
8102 | mapno++; | |
8103 | /* At end of last map, wrap around to first map if just starting, | |
8104 | or end this line if already have something on it. */ | |
8105 | if (mapno == nmaps) | |
8106 | { | |
8107 | mapno = 0; | |
8108 | if (notfirst || nobindings) break; | |
8109 | } | |
8110 | rest = maps[mapno]; | |
8111 | } | |
7d6de002 | 8112 | |
af2b7cc9 KS |
8113 | /* Look at the next element of the map. */ |
8114 | if (idx >= 0) | |
8115 | elt = XVECTOR (vector)->contents[idx]; | |
8116 | else | |
8117 | elt = Fcar_safe (rest); | |
7d6de002 | 8118 | |
af2b7cc9 | 8119 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8120 | { |
af2b7cc9 KS |
8121 | /* If we found a dense table in the keymap, |
8122 | advanced past it, but start scanning its contents. */ | |
8123 | rest = Fcdr_safe (rest); | |
8124 | vector = elt; | |
8125 | idx = 0; | |
284f4730 | 8126 | } |
7d6de002 RS |
8127 | else |
8128 | { | |
af2b7cc9 KS |
8129 | /* An ordinary element. */ |
8130 | Lisp_Object event, tem; | |
7d6de002 | 8131 | |
af2b7cc9 KS |
8132 | if (idx < 0) |
8133 | { | |
8134 | event = Fcar_safe (elt); /* alist */ | |
8135 | elt = Fcdr_safe (elt); | |
8136 | } | |
8137 | else | |
8138 | { | |
8139 | XSETINT (event, idx); /* vector */ | |
8140 | } | |
284f4730 | 8141 | |
af2b7cc9 KS |
8142 | /* Ignore the element if it has no prompt string. */ |
8143 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8144 | { | |
8145 | /* 1 if the char to type matches the string. */ | |
8146 | int char_matches; | |
8147 | Lisp_Object upcased_event, downcased_event; | |
8148 | Lisp_Object desc = Qnil; | |
8149 | Lisp_Object s | |
8150 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8151 | ||
8152 | upcased_event = Fupcase (event); | |
8153 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8154 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8155 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8156 | if (! char_matches) |
8157 | desc = Fsingle_key_description (event, Qnil); | |
8158 | ||
8159 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8160 | the prefix is what the user has already typed. */ | |
8161 | tem | |
8162 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8163 | if (!NILP (tem)) | |
8164 | /* Insert equivalent keybinding. */ | |
8165 | s = concat2 (s, tem); | |
8166 | #endif | |
8167 | tem | |
8168 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8169 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8170 | { | |
8171 | /* Insert button prefix. */ | |
8172 | Lisp_Object selected | |
8173 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8174 | if (EQ (tem, QCradio)) | |
8175 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8176 | else | |
8177 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8178 | s = concat2 (tem, s); | |
8179 | } | |
c60ee5e7 | 8180 | |
af2b7cc9 KS |
8181 | |
8182 | /* If we have room for the prompt string, add it to this line. | |
8183 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8184 | if ((SCHARS (s) + i + 2 |
8185 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8186 | < width |
8187 | || !notfirst) | |
8188 | { | |
8189 | int thiswidth; | |
8190 | ||
8191 | /* Punctuate between strings. */ | |
8192 | if (notfirst) | |
8193 | { | |
8194 | strcpy (menu + i, ", "); | |
8195 | i += 2; | |
8196 | } | |
8197 | notfirst = 1; | |
8198 | nobindings = 0 ; | |
8199 | ||
8200 | /* If the char to type doesn't match the string's | |
8201 | first char, explicitly show what char to type. */ | |
8202 | if (! char_matches) | |
8203 | { | |
8204 | /* Add as much of string as fits. */ | |
d5db4077 | 8205 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8206 | if (thiswidth + i > width) |
8207 | thiswidth = width - i; | |
d5db4077 | 8208 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8209 | i += thiswidth; |
8210 | strcpy (menu + i, " = "); | |
8211 | i += 3; | |
8212 | } | |
8213 | ||
8214 | /* Add as much of string as fits. */ | |
d5db4077 | 8215 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8216 | if (thiswidth + i > width) |
8217 | thiswidth = width - i; | |
d5db4077 | 8218 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8219 | i += thiswidth; |
8220 | menu[i] = 0; | |
8221 | } | |
8222 | else | |
8223 | { | |
8224 | /* If this element does not fit, end the line now, | |
8225 | and save the element for the next line. */ | |
8226 | strcpy (menu + i, "..."); | |
8227 | break; | |
8228 | } | |
8229 | } | |
8230 | ||
8231 | /* Move past this element. */ | |
8232 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8233 | /* Handle reaching end of dense table. */ | |
8234 | idx = -1; | |
8235 | if (idx >= 0) | |
8236 | idx++; | |
8237 | else | |
8238 | rest = Fcdr_safe (rest); | |
8239 | } | |
325309f5 | 8240 | } |
8150596a | 8241 | |
af2b7cc9 | 8242 | /* Prompt with that and read response. */ |
c60ee5e7 | 8243 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8244 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8245 | |
af2b7cc9 KS |
8246 | /* Make believe its not a keyboard macro in case the help char |
8247 | is pressed. Help characters are not recorded because menu prompting | |
8248 | is not used on replay. | |
8249 | */ | |
8250 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8251 | current_kboard->defining_kbd_macro = Qnil; | |
8252 | do | |
8253 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
8254 | while (BUFFERP (obj)); | |
8255 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8256 | |
af2b7cc9 KS |
8257 | if (!INTEGERP (obj)) |
8258 | return obj; | |
8259 | else | |
8260 | ch = XINT (obj); | |
8261 | ||
8262 | if (! EQ (obj, menu_prompt_more_char) | |
8263 | && (!INTEGERP (menu_prompt_more_char) | |
8264 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8265 | { | |
8266 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8267 | store_kbd_macro_char (obj); | |
8268 | return obj; | |
8269 | } | |
8270 | /* Help char - go round again */ | |
8271 | } | |
284f4730 | 8272 | } |
284f4730 JB |
8273 | \f |
8274 | /* Reading key sequences. */ | |
8275 | ||
8276 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8277 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8278 | keymap, or nil otherwise. Return the index of the first keymap in | |
8279 | which KEY has any binding, or NMAPS if no map has a binding. | |
8280 | ||
8281 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8282 | followed by the corresponding non-meta character. Keymaps in | |
8283 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8284 | NEXT. | |
8285 | ||
88cb0656 JB |
8286 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8287 | unmodified. | |
8288 | ||
569871d2 | 8289 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8290 | |
8291 | static int | |
4e50f26a | 8292 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8293 | Lisp_Object key; |
8294 | Lisp_Object *current, *defs, *next; | |
8295 | int nmaps; | |
8296 | { | |
8297 | int i, first_binding; | |
8298 | ||
284f4730 JB |
8299 | first_binding = nmaps; |
8300 | for (i = nmaps - 1; i >= 0; i--) | |
8301 | { | |
8302 | if (! NILP (current[i])) | |
8303 | { | |
fe5b94c5 | 8304 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8305 | if (! NILP (defs[i])) |
8306 | first_binding = i; | |
8307 | } | |
8308 | else | |
8309 | defs[i] = Qnil; | |
8310 | } | |
8311 | ||
284f4730 | 8312 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8313 | if (first_binding < nmaps) |
8314 | for (i = 0; i < nmaps; i++) | |
02067692 | 8315 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8316 | |
8317 | return first_binding; | |
8318 | } | |
8319 | ||
a7f26f28 SM |
8320 | /* Structure used to keep track of partial application of key remapping |
8321 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8322 | typedef struct keyremap | |
8323 | { | |
24d80a06 | 8324 | Lisp_Object map, parent; |
a7f26f28 SM |
8325 | int start, end; |
8326 | } keyremap; | |
8327 | ||
fe5b94c5 SM |
8328 | /* Lookup KEY in MAP. |
8329 | MAP is a keymap mapping keys to key vectors or functions. | |
8330 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8331 | the function is called with PROMPT as parameter and its return | |
8332 | value is used as the return value of this function (after checking | |
8333 | that it is indeed a vector). */ | |
8334 | ||
8335 | static Lisp_Object | |
8336 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8337 | Lisp_Object map, key, prompt; | |
8338 | int do_funcall; | |
8339 | { | |
8340 | Lisp_Object next; | |
8341 | ||
8342 | next = access_keymap (map, key, 1, 0, 1); | |
8343 | ||
8344 | /* Handle symbol with autoload definition. */ | |
8345 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8346 | && CONSP (XSYMBOL (next)->function) | |
8347 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8348 | do_autoload (XSYMBOL (next)->function, next); | |
8349 | ||
8350 | /* Handle a symbol whose function definition is a keymap | |
8351 | or an array. */ | |
8352 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8353 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
8354 | || KEYMAPP (XSYMBOL (next)->function))) | |
8355 | next = XSYMBOL (next)->function; | |
8356 | ||
8357 | /* If the keymap gives a function, not an | |
8358 | array, then call the function with one arg and use | |
8359 | its value instead. */ | |
8360 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8361 | { | |
8362 | Lisp_Object tem; | |
8363 | tem = next; | |
8364 | ||
8365 | next = call1 (next, prompt); | |
8366 | /* If the function returned something invalid, | |
8367 | barf--don't ignore it. | |
8368 | (To ignore it safely, we would need to gcpro a bunch of | |
8369 | other variables.) */ | |
8370 | if (! (VECTORP (next) || STRINGP (next))) | |
8371 | error ("Function %s returns invalid key sequence", tem); | |
8372 | } | |
8373 | return next; | |
8374 | } | |
8375 | ||
8376 | /* Do one step of the key remapping used for function-key-map and | |
8377 | key-translation-map: | |
8378 | KEYBUF is the buffer holding the input events. | |
8379 | BUFSIZE is its maximum size. | |
8380 | FKEY is a pointer to the keyremap structure to use. | |
8381 | INPUT is the index of the last element in KEYBUF. | |
8382 | DOIT if non-zero says that the remapping can actually take place. | |
8383 | DIFF is used to return the number of keys added/removed by the remapping. | |
8384 | PARENT is the root of the keymap. | |
8385 | PROMPT is the prompt to use if the remapping happens through a function. | |
8386 | The return value is non-zero if the remapping actually took place. */ | |
8387 | ||
8388 | static int | |
24d80a06 SM |
8389 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
8390 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
8391 | keyremap *fkey; |
8392 | int input, doit, *diff, bufsize; | |
8393 | { | |
8394 | Lisp_Object next, key; | |
8395 | ||
8396 | key = keybuf[fkey->end++]; | |
8397 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8398 | ||
8399 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8400 | map and we're in a position to do the key remapping, replace it with | |
8401 | the binding and restart with fkey->start at the end. */ | |
8402 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
8403 | { | |
8404 | int len = XFASTINT (Flength (next)); | |
8405 | int i; | |
8406 | ||
8407 | *diff = len - (fkey->end - fkey->start); | |
8408 | ||
8409 | if (input + *diff >= bufsize) | |
8410 | error ("Key sequence too long"); | |
8411 | ||
8412 | /* Shift the keys that follow fkey->end. */ | |
8413 | if (*diff < 0) | |
8414 | for (i = fkey->end; i < input; i++) | |
8415 | keybuf[i + *diff] = keybuf[i]; | |
8416 | else if (*diff > 0) | |
8417 | for (i = input - 1; i >= fkey->end; i--) | |
8418 | keybuf[i + *diff] = keybuf[i]; | |
8419 | /* Overwrite the old keys with the new ones. */ | |
8420 | for (i = 0; i < len; i++) | |
8421 | keybuf[fkey->start + i] | |
8422 | = Faref (next, make_number (i)); | |
8423 | ||
8424 | fkey->start = fkey->end += *diff; | |
24d80a06 | 8425 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8426 | |
8427 | return 1; | |
8428 | } | |
8429 | ||
8430 | fkey->map = get_keymap (next, 0, 1); | |
8431 | ||
8432 | /* If we no longer have a bound suffix, try a new position for | |
8433 | fkey->start. */ | |
8434 | if (!CONSP (fkey->map)) | |
8435 | { | |
8436 | fkey->end = ++fkey->start; | |
24d80a06 | 8437 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8438 | } |
8439 | return 0; | |
8440 | } | |
a7f26f28 | 8441 | |
df0f2ba1 | 8442 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8443 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8444 | Prompt with PROMPT. | |
284f4730 | 8445 | Return the length of the key sequence stored. |
dcc408a0 | 8446 | Return -1 if the user rejected a command menu. |
284f4730 | 8447 | |
f4255cd1 JB |
8448 | Echo starting immediately unless `prompt' is 0. |
8449 | ||
8450 | Where a key sequence ends depends on the currently active keymaps. | |
8451 | These include any minor mode keymaps active in the current buffer, | |
8452 | the current buffer's local map, and the global map. | |
8453 | ||
8454 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8455 | to see if some trailing subsequence might be the beginning of a | |
8456 | function key's sequence. If so, we try to read the whole function | |
8457 | key, and substitute its symbolic name into the key sequence. | |
8458 | ||
fbcd35bd JB |
8459 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8460 | `double-' events into similar click events, if that would make them | |
8461 | bound. We try to turn `triple-' events first into `double-' events, | |
8462 | then into clicks. | |
f4255cd1 JB |
8463 | |
8464 | If we get a mouse click in a mode line, vertical divider, or other | |
8465 | non-text area, we treat the click as if it were prefixed by the | |
8466 | symbol denoting that area - `mode-line', `vertical-line', or | |
8467 | whatever. | |
8468 | ||
8469 | If the sequence starts with a mouse click, we read the key sequence | |
8470 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8471 | |
f4255cd1 JB |
8472 | If the user switches frames in the midst of a key sequence, we put |
8473 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8474 | read_char will return it. |
8475 | ||
8476 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8477 | from the selected window's buffer. */ | |
48e416d4 | 8478 | |
284f4730 | 8479 | static int |
ce98e608 | 8480 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8481 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8482 | Lisp_Object *keybuf; |
8483 | int bufsize; | |
84d91fda | 8484 | Lisp_Object prompt; |
309b0fc8 | 8485 | int dont_downcase_last; |
ce98e608 | 8486 | int can_return_switch_frame; |
f571ae0d | 8487 | int fix_current_buffer; |
284f4730 | 8488 | { |
db14cfc5 | 8489 | volatile Lisp_Object from_string; |
aed13378 | 8490 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8491 | |
284f4730 | 8492 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8493 | volatile int t; |
284f4730 | 8494 | |
284f4730 JB |
8495 | /* The length of the echo buffer when we started reading, and |
8496 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8497 | volatile int echo_start; |
8498 | volatile int keys_start; | |
284f4730 JB |
8499 | |
8500 | /* The number of keymaps we're scanning right now, and the number of | |
8501 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8502 | volatile int nmaps; |
8503 | volatile int nmaps_allocated = 0; | |
284f4730 | 8504 | |
284f4730 JB |
8505 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8506 | the current keymaps. */ | |
8c907a56 | 8507 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8508 | |
f4255cd1 JB |
8509 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8510 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8511 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8512 | |
e0dff5f6 | 8513 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8514 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8515 | |
30690496 DL |
8516 | /* The map from the `keymap' property to start out with at start of |
8517 | key sequence. */ | |
8c907a56 | 8518 | volatile Lisp_Object orig_keymap; |
30690496 | 8519 | |
e0dff5f6 RS |
8520 | /* 1 if we have already considered switching to the local-map property |
8521 | of the place where a mouse click occurred. */ | |
8c907a56 | 8522 | volatile int localized_local_map = 0; |
e0dff5f6 | 8523 | |
f4255cd1 JB |
8524 | /* The index in defs[] of the first keymap that has a binding for |
8525 | this key sequence. In other words, the lowest i such that | |
8526 | defs[i] is non-nil. */ | |
8c907a56 | 8527 | volatile int first_binding; |
7189cad8 | 8528 | /* Index of the first key that has no binding. |
a7f26f28 | 8529 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 8530 | volatile int first_unbound; |
284f4730 | 8531 | |
f4255cd1 | 8532 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8533 | input key. |
8534 | ||
8535 | We use this to recover after recognizing a function key. Once we | |
8536 | realize that a suffix of the current key sequence is actually a | |
8537 | function key's escape sequence, we replace the suffix with the | |
8538 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8539 | contains a new and different key sequence, so the echo area, |
8540 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8541 | this situation, we set mock_input to t, set t to 0, and jump to | |
8542 | restart_sequence; the loop will read keys from keybuf up until | |
8543 | mock_input, thus rebuilding the state; and then it will resume | |
8544 | reading characters from the keyboard. */ | |
8c907a56 | 8545 | volatile int mock_input = 0; |
284f4730 | 8546 | |
253598e4 | 8547 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8548 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8549 | and fkey.map is its binding. | |
253598e4 | 8550 | |
f4255cd1 JB |
8551 | These might be > t, indicating that all function key scanning |
8552 | should hold off until t reaches them. We do this when we've just | |
8553 | recognized a function key, to avoid searching for the function | |
8554 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 8555 | volatile keyremap fkey; |
284f4730 | 8556 | |
a612e298 | 8557 | /* Likewise, for key_translation_map. */ |
a7f26f28 | 8558 | volatile keyremap keytran; |
a612e298 | 8559 | |
fe5b94c5 SM |
8560 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
8561 | a key sequence, we put it off for later. | |
8562 | While we're reading, we keep the event here. */ | |
8c907a56 | 8563 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8564 | |
51763820 BF |
8565 | /* See the comment below... */ |
8566 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8567 | Lisp_Object first_event; |
51763820 | 8568 | #endif |
4efda7dd | 8569 | |
8c907a56 GM |
8570 | volatile Lisp_Object original_uppercase; |
8571 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8572 | |
bc536d84 | 8573 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8574 | int dummyflag = 0; |
bc536d84 | 8575 | |
3b9189f8 RS |
8576 | struct buffer *starting_buffer; |
8577 | ||
2dc00208 GM |
8578 | /* List of events for which a fake prefix key has been generated. */ |
8579 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8580 | ||
03cee6ae | 8581 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8582 | int junk; |
03cee6ae | 8583 | #endif |
4efda7dd | 8584 | |
2dc00208 GM |
8585 | struct gcpro gcpro1; |
8586 | ||
8587 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8588 | raw_keybuf_count = 0; |
8589 | ||
4efda7dd RS |
8590 | last_nonmenu_event = Qnil; |
8591 | ||
8592 | delayed_switch_frame = Qnil; | |
24d80a06 SM |
8593 | fkey.map = fkey.parent = Vfunction_key_map; |
8594 | keytran.map = keytran.parent = Vkey_translation_map; | |
a7f26f28 SM |
8595 | /* If there is no translation-map, turn off scanning. */ |
8596 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; | |
8597 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
a612e298 | 8598 | |
284f4730 JB |
8599 | if (INTERACTIVE) |
8600 | { | |
84d91fda | 8601 | if (!NILP (prompt)) |
a4ef85ee | 8602 | echo_prompt (prompt); |
f2647d04 DL |
8603 | else if (cursor_in_echo_area |
8604 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8605 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8606 | /* This doesn't put in a dash if the echo buffer is empty, so |
8607 | you don't always see a dash hanging out in the minibuffer. */ | |
8608 | echo_dash (); | |
284f4730 JB |
8609 | } |
8610 | ||
f4255cd1 JB |
8611 | /* Record the initial state of the echo area and this_command_keys; |
8612 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8613 | if (INTERACTIVE) |
df0f2ba1 | 8614 | echo_start = echo_length (); |
f4255cd1 | 8615 | keys_start = this_command_key_count; |
6321824f | 8616 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8617 | |
51763820 BF |
8618 | #if defined (GOBBLE_FIRST_EVENT) |
8619 | /* This doesn't quite work, because some of the things that read_char | |
8620 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8621 | this work right. */ |
51763820 | 8622 | |
4efda7dd RS |
8623 | /* Read the first char of the sequence specially, before setting |
8624 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8625 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8626 | &junk); |
51763820 | 8627 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8628 | |
24a40fbb GM |
8629 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8630 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8631 | from_string = Qnil; |
e0dff5f6 | 8632 | |
7b4aedb9 JB |
8633 | /* We jump here when the key sequence has been thoroughly changed, and |
8634 | we need to rescan it starting from the beginning. When we jump here, | |
8635 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8636 | replay_sequence: |
7b4aedb9 | 8637 | |
3b9189f8 | 8638 | starting_buffer = current_buffer; |
7189cad8 | 8639 | first_unbound = bufsize + 1; |
3b9189f8 | 8640 | |
f4255cd1 | 8641 | /* Build our list of keymaps. |
07d2b8de JB |
8642 | If we recognize a function key and replace its escape sequence in |
8643 | keybuf with its symbol, or if the sequence starts with a mouse | |
8644 | click and we need to switch buffers, we jump back here to rebuild | |
8645 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8646 | nmaps = 0; |
284f4730 | 8647 | |
4cbedc16 RS |
8648 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8649 | || !NILP (Voverriding_local_map)) | |
8650 | { | |
8651 | if (3 > nmaps_allocated) | |
8652 | { | |
8653 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8654 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8655 | nmaps_allocated = 3; | |
8656 | } | |
8657 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8658 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8659 | if (!NILP (Voverriding_local_map)) | |
8660 | submaps[nmaps++] = Voverriding_local_map; | |
8661 | } | |
8662 | else | |
8663 | { | |
4cbedc16 RS |
8664 | int nminor; |
8665 | int total; | |
8666 | Lisp_Object *maps; | |
8667 | ||
8668 | nminor = current_minor_maps (0, &maps); | |
8669 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8670 | ||
8671 | if (total > nmaps_allocated) | |
8672 | { | |
8673 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8674 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8675 | nmaps_allocated = total; | |
8676 | } | |
8677 | ||
8678 | if (!NILP (orig_keymap)) | |
8679 | submaps[nmaps++] = orig_keymap; | |
8680 | ||
7d1c4866 | 8681 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8682 | nminor * sizeof (submaps[0])); |
8683 | ||
8684 | nmaps += nminor; | |
8685 | ||
8686 | submaps[nmaps++] = orig_local_map; | |
8687 | } | |
8688 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8689 | |
8690 | /* Find an accurate initial value for first_binding. */ | |
8691 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8692 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8693 | break; |
8694 | ||
3b9189f8 | 8695 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8696 | t = 0; |
8697 | ||
8698 | /* These are no-ops the first time through, but if we restart, they | |
8699 | revert the echo area and this_command_keys to their original state. */ | |
8700 | this_command_key_count = keys_start; | |
df0f2ba1 | 8701 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8702 | echo_truncate (echo_start); |
8703 | ||
cca310da JB |
8704 | /* If the best binding for the current key sequence is a keymap, or |
8705 | we may be looking at a function key's escape sequence, keep on | |
8706 | reading. */ | |
a7f26f28 SM |
8707 | while (first_binding < nmaps |
8708 | /* Keep reading as long as there's a prefix binding. */ | |
8709 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
8710 | /* Don't return in the middle of a possible function key sequence, |
8711 | if the only bindings we found were via case conversion. | |
8712 | Thus, if ESC O a has a function-key-map translation | |
8713 | and ESC o has a binding, don't return after ESC O, | |
8714 | so that we can translate ESC O plus the next character. */ | |
a7f26f28 | 8715 | : (fkey.start < t || keytran.start < t)) |
284f4730 JB |
8716 | { |
8717 | Lisp_Object key; | |
7d6de002 | 8718 | int used_mouse_menu = 0; |
284f4730 | 8719 | |
7b4aedb9 JB |
8720 | /* Where the last real key started. If we need to throw away a |
8721 | key that has expanded into more than one element of keybuf | |
8722 | (say, a mouse click on the mode line which is being treated | |
8723 | as [mode-line (mouse-...)], then we backtrack to this point | |
8724 | of keybuf. */ | |
8c907a56 | 8725 | volatile int last_real_key_start; |
7b4aedb9 | 8726 | |
0a7f1fc0 JB |
8727 | /* These variables are analogous to echo_start and keys_start; |
8728 | while those allow us to restart the entire key sequence, | |
8729 | echo_local_start and keys_local_start allow us to throw away | |
8730 | just one key. */ | |
8c907a56 | 8731 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8732 | |
fe5b94c5 SM |
8733 | eassert (fkey.end == t || (fkey.end > t && fkey.end <= mock_input)); |
8734 | eassert (fkey.start <= fkey.end); | |
8735 | eassert (keytran.start <= keytran.end); | |
2cf4b7b2 | 8736 | /* key-translation-map is applied *after* function-key-map. */ |
a7f26f28 | 8737 | eassert (keytran.end <= fkey.start); |
7189cad8 | 8738 | |
a7f26f28 | 8739 | if (first_unbound < fkey.start && first_unbound < keytran.start) |
7189cad8 SM |
8740 | { /* The prefix upto first_unbound has no binding and has |
8741 | no translation left to do either, so we know it's unbound. | |
8742 | If we don't stop now, we risk staying here indefinitely | |
8743 | (if the user keeps entering fkey or keytran prefixes | |
8744 | like C-c ESC ESC ESC ESC ...) */ | |
8745 | int i; | |
8746 | for (i = first_unbound + 1; i < t; i++) | |
8747 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8748 | mock_input = t - first_unbound - 1; | |
a7f26f28 | 8749 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 8750 | fkey.map = fkey.parent; |
a7f26f28 | 8751 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 8752 | keytran.map = keytran.parent; |
7189cad8 SM |
8753 | goto replay_sequence; |
8754 | } | |
8755 | ||
284f4730 | 8756 | if (t >= bufsize) |
3fe8e9a2 | 8757 | error ("Key sequence too long"); |
284f4730 | 8758 | |
f4255cd1 JB |
8759 | if (INTERACTIVE) |
8760 | echo_local_start = echo_length (); | |
8761 | keys_local_start = this_command_key_count; | |
8762 | local_first_binding = first_binding; | |
df0f2ba1 | 8763 | |
f4255cd1 | 8764 | replay_key: |
0a7f1fc0 | 8765 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8766 | jumped back up to replay_key; in that case, these restore the |
8767 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8768 | loop. */ |
40932d1a | 8769 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8770 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8771 | this_command_key_count = keys_local_start; |
8772 | first_binding = local_first_binding; | |
8773 | ||
7e85b935 RS |
8774 | /* By default, assume each event is "real". */ |
8775 | last_real_key_start = t; | |
8776 | ||
f4255cd1 | 8777 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8778 | if (t < mock_input) |
8779 | { | |
8780 | key = keybuf[t]; | |
8781 | add_command_key (key); | |
f2647d04 DL |
8782 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8783 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8784 | echo_char (key); |
284f4730 | 8785 | } |
253598e4 JB |
8786 | |
8787 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8788 | else |
8789 | { | |
beecf6a1 | 8790 | { |
c5fdd383 KH |
8791 | #ifdef MULTI_KBOARD |
8792 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8793 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8794 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8795 | { |
5798cf15 KH |
8796 | if (!NILP (delayed_switch_frame)) |
8797 | { | |
c5fdd383 | 8798 | interrupted_kboard->kbd_queue |
5798cf15 | 8799 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8800 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8801 | delayed_switch_frame = Qnil; |
8802 | } | |
beecf6a1 | 8803 | while (t > 0) |
c5fdd383 KH |
8804 | interrupted_kboard->kbd_queue |
8805 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8806 | |
8807 | /* If the side queue is non-empty, ensure it begins with a | |
8808 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8809 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8810 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8811 | !(EVENT_HAS_PARAMETERS (key) |
8812 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8813 | Qswitch_frame)))) | |
df0f2ba1 KH |
8814 | { |
8815 | Lisp_Object frame; | |
8816 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8817 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8818 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8819 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8820 | } |
beecf6a1 | 8821 | mock_input = 0; |
24a40fbb GM |
8822 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8823 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8824 | goto replay_sequence; |
8825 | } | |
bded54dd | 8826 | #endif |
8c907a56 GM |
8827 | key = read_char (NILP (prompt), nmaps, |
8828 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8829 | &used_mouse_menu); |
8830 | } | |
284f4730 | 8831 | |
dcc408a0 RS |
8832 | /* read_char returns t when it shows a menu and the user rejects it. |
8833 | Just return -1. */ | |
8834 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8835 | { |
8836 | unbind_to (count, Qnil); | |
2dc00208 | 8837 | UNGCPRO; |
7d18f9ae RS |
8838 | return -1; |
8839 | } | |
dcc408a0 | 8840 | |
f4255cd1 | 8841 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8842 | Emacs 18 handles this by returning immediately with a |
8843 | zero, so that's what we'll do. */ | |
8c18cbfb | 8844 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8845 | { |
f4255cd1 | 8846 | t = 0; |
bc536d84 RS |
8847 | /* The Microsoft C compiler can't handle the goto that |
8848 | would go here. */ | |
309b0fc8 | 8849 | dummyflag = 1; |
bc536d84 | 8850 | break; |
cd21b839 | 8851 | } |
df0f2ba1 | 8852 | |
3cb81011 KH |
8853 | /* If the current buffer has been changed from under us, the |
8854 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8855 | if (BUFFERP (key)) |
3cb81011 | 8856 | { |
e431fcda DL |
8857 | EMACS_TIME initial_idleness_start_time; |
8858 | EMACS_SET_SECS_USECS (initial_idleness_start_time, | |
8859 | EMACS_SECS (timer_last_idleness_start_time), | |
8860 | EMACS_USECS (timer_last_idleness_start_time)); | |
3021d3a9 RS |
8861 | |
8862 | /* Resume idle state, using the same start-time as before. */ | |
8863 | timer_start_idle (); | |
8864 | timer_idleness_start_time = initial_idleness_start_time; | |
8865 | ||
3cb81011 | 8866 | mock_input = t; |
f571ae0d RS |
8867 | /* Reset the current buffer from the selected window |
8868 | in case something changed the former and not the latter. | |
8869 | This is to be more consistent with the behavior | |
8870 | of the command_loop_1. */ | |
8871 | if (fix_current_buffer) | |
a94a4335 | 8872 | { |
788f89eb | 8873 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8874 | Fkill_emacs (Qnil); |
8875 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8876 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8877 | } | |
f571ae0d | 8878 | |
24a40fbb GM |
8879 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8880 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8881 | goto replay_sequence; |
8882 | } | |
8883 | ||
3b9189f8 RS |
8884 | /* If we have a quit that was typed in another frame, and |
8885 | quit_throw_to_read_char switched buffers, | |
8886 | replay to get the right keymap. */ | |
f4e05d97 GM |
8887 | if (INTEGERP (key) |
8888 | && XINT (key) == quit_char | |
8889 | && current_buffer != starting_buffer) | |
3b9189f8 | 8890 | { |
7d18f9ae RS |
8891 | GROW_RAW_KEYBUF; |
8892 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8893 | keybuf[t++] = key; |
8894 | mock_input = t; | |
8895 | Vquit_flag = Qnil; | |
24a40fbb GM |
8896 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8897 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8898 | goto replay_sequence; |
8899 | } | |
3cb81011 | 8900 | |
284f4730 | 8901 | Vquit_flag = Qnil; |
7d18f9ae RS |
8902 | |
8903 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 8904 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
8905 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
8906 | { | |
8907 | /* If we're at the beginning of a key sequence, and the caller | |
8908 | says it's okay, go ahead and return this event. If we're | |
8909 | in the midst of a key sequence, delay it until the end. */ | |
8910 | if (t > 0 || !can_return_switch_frame) | |
8911 | { | |
8912 | delayed_switch_frame = key; | |
8913 | goto replay_key; | |
8914 | } | |
8915 | } | |
8916 | ||
8917 | GROW_RAW_KEYBUF; | |
8918 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8919 | } |
284f4730 | 8920 | |
df0f2ba1 | 8921 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8922 | in their CHAR-ADDRESS field. For example, a click on |
8923 | the mode line is prefixed by the symbol `mode-line'. | |
8924 | ||
8925 | Furthermore, key sequences beginning with mouse clicks | |
8926 | are read using the keymaps of the buffer clicked on, not | |
8927 | the current buffer. So we may have to switch the buffer | |
8928 | here. | |
8929 | ||
8930 | When we turn one event into two events, we must make sure | |
8931 | that neither of the two looks like the original--so that, | |
8932 | if we replay the events, they won't be expanded again. | |
8933 | If not for this, such reexpansion could happen either here | |
8934 | or when user programs play with this-command-keys. */ | |
8935 | if (EVENT_HAS_PARAMETERS (key)) | |
8936 | { | |
9b8eb840 | 8937 | Lisp_Object kind; |
cca310da | 8938 | |
9b8eb840 | 8939 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8940 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8941 | { |
9b8eb840 | 8942 | Lisp_Object window, posn; |
f4255cd1 | 8943 | |
9b8eb840 KH |
8944 | window = POSN_WINDOW (EVENT_START (key)); |
8945 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 8946 | |
2cf066c3 GM |
8947 | if (CONSP (posn) |
8948 | || (!NILP (fake_prefixed_keys) | |
8949 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8950 | { |
2cf066c3 GM |
8951 | /* We're looking a second time at an event for which |
8952 | we generated a fake prefix key. Set | |
7e85b935 RS |
8953 | last_real_key_start appropriately. */ |
8954 | if (t > 0) | |
8955 | last_real_key_start = t - 1; | |
cd21b839 | 8956 | } |
7e85b935 RS |
8957 | |
8958 | /* Key sequences beginning with mouse clicks are | |
8959 | read using the keymaps in the buffer clicked on, | |
8960 | not the current buffer. If we're at the | |
8961 | beginning of a key sequence, switch buffers. */ | |
8962 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8963 | && WINDOWP (window) |
8964 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8965 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8966 | { |
7d18f9ae | 8967 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8968 | keybuf[t] = key; |
8969 | mock_input = t + 1; | |
8970 | ||
8971 | /* Arrange to go back to the original buffer once we're | |
8972 | done reading the key sequence. Note that we can't | |
8973 | use save_excursion_{save,restore} here, because they | |
8974 | save point as well as the current buffer; we don't | |
8975 | want to save point, because redisplay may change it, | |
8976 | to accommodate a Fset_window_start or something. We | |
8977 | don't want to do this at the top of the function, | |
8978 | because we may get input from a subprocess which | |
8979 | wants to change the selected window and stuff (say, | |
8980 | emacsclient). */ | |
8981 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8982 | ||
788f89eb | 8983 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8984 | Fkill_emacs (Qnil); |
24a40fbb | 8985 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8986 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8987 | Qlocal_map); |
8988 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8989 | goto replay_sequence; |
0a7f1fc0 | 8990 | } |
c60ee5e7 | 8991 | |
e0dff5f6 RS |
8992 | /* For a mouse click, get the local text-property keymap |
8993 | of the place clicked on, rather than point. */ | |
7ee32cda | 8994 | if (last_real_key_start == 0 |
7539e11f | 8995 | && CONSP (XCDR (key)) |
e0dff5f6 | 8996 | && ! localized_local_map) |
5ec75a55 | 8997 | { |
e0dff5f6 RS |
8998 | Lisp_Object map_here, start, pos; |
8999 | ||
9000 | localized_local_map = 1; | |
9001 | start = EVENT_START (key); | |
c60ee5e7 | 9002 | |
7539e11f | 9003 | if (CONSP (start) && CONSP (XCDR (start))) |
e0dff5f6 RS |
9004 | { |
9005 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
9006 | if (INTEGERP (pos) |
9007 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 9008 | { |
30690496 | 9009 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9010 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9011 | if (!EQ (map_here, orig_local_map)) |
9012 | { | |
9013 | orig_local_map = map_here; | |
9014 | keybuf[t] = key; | |
9015 | mock_input = t + 1; | |
5ec75a55 | 9016 | |
30690496 DL |
9017 | goto replay_sequence; |
9018 | } | |
9019 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 9020 | current_buffer, Qkeymap); |
30690496 DL |
9021 | if (!EQ (map_here, orig_keymap)) |
9022 | { | |
9023 | orig_keymap = map_here; | |
9024 | keybuf[t] = key; | |
9025 | mock_input = t + 1; | |
9026 | ||
e0dff5f6 RS |
9027 | goto replay_sequence; |
9028 | } | |
9029 | } | |
9030 | } | |
9031 | } | |
9032 | ||
9033 | /* Expand mode-line and scroll-bar events into two events: | |
9034 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9035 | if (SYMBOLP (posn) |
9036 | && (NILP (fake_prefixed_keys) | |
9037 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9038 | { |
7e85b935 | 9039 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9040 | error ("Key sequence too long"); |
c60ee5e7 | 9041 | |
2dc00208 GM |
9042 | keybuf[t] = posn; |
9043 | keybuf[t + 1] = key; | |
9044 | mock_input = t + 2; | |
9045 | ||
9046 | /* Record that a fake prefix key has been generated | |
9047 | for KEY. Don't modify the event; this would | |
9048 | prevent proper action when the event is pushed | |
c7f4f573 | 9049 | back into unread-command-events. */ |
2dc00208 | 9050 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9051 | |
9052 | /* If on a mode line string with a local keymap, | |
9053 | reconsider the key sequence with that keymap. */ | |
9054 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
9055 | { | |
30690496 | 9056 | Lisp_Object string, pos, map, map2; |
7ee32cda GM |
9057 | |
9058 | string = POSN_STRING (EVENT_START (key)); | |
9059 | pos = XCDR (string); | |
9060 | string = XCAR (string); | |
52e386c2 | 9061 | if (XINT (pos) >= 0 |
d5db4077 | 9062 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9063 | { |
9064 | map = Fget_text_property (pos, Qlocal_map, string); | |
9065 | if (!NILP (map)) | |
9066 | orig_local_map = map; | |
9067 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9068 | if (!NILP (map2)) | |
9069 | orig_keymap = map2; | |
9070 | if (!NILP (map) || !NILP (map2)) | |
9071 | goto replay_sequence; | |
9072 | } | |
7ee32cda GM |
9073 | } |
9074 | ||
7e85b935 | 9075 | goto replay_key; |
5ec75a55 | 9076 | } |
db14cfc5 GM |
9077 | else if (CONSP (POSN_STRING (EVENT_START (key))) |
9078 | && NILP (from_string)) | |
9079 | { | |
9080 | /* For a click on a string, i.e. overlay string or a | |
9081 | string displayed via the `display' property, | |
9082 | consider `local-map' and `keymap' properties of | |
9083 | that string. */ | |
9084 | Lisp_Object string, pos, map, map2; | |
9085 | ||
9086 | string = POSN_STRING (EVENT_START (key)); | |
9087 | pos = XCDR (string); | |
9088 | string = XCAR (string); | |
9089 | if (XINT (pos) >= 0 | |
d5db4077 | 9090 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9091 | { |
9092 | map = Fget_text_property (pos, Qlocal_map, string); | |
9093 | if (!NILP (map)) | |
9094 | orig_local_map = map; | |
9095 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9096 | if (!NILP (map2)) | |
9097 | orig_keymap = map2; | |
9098 | ||
9099 | if (!NILP (map) || !NILP (map2)) | |
9100 | { | |
9101 | from_string = string; | |
9102 | goto replay_sequence; | |
9103 | } | |
9104 | } | |
9105 | } | |
0a7f1fc0 | 9106 | } |
7539e11f | 9107 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9108 | && CONSP (EVENT_START (key)) |
7539e11f | 9109 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9110 | { |
9b8eb840 | 9111 | Lisp_Object posn; |
7e85b935 | 9112 | |
9b8eb840 | 9113 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
9114 | /* Handle menu-bar events: |
9115 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9116 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9117 | { |
9118 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9119 | error ("Key sequence too long"); |
7e85b935 RS |
9120 | keybuf[t] = posn; |
9121 | keybuf[t+1] = key; | |
9122 | ||
9123 | /* Zap the position in key, so we know that we've | |
9124 | expanded it, and don't try to do so again. */ | |
f3fbd155 KR |
9125 | POSN_BUFFER_SET_POSN (EVENT_START (key), |
9126 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9127 | |
9128 | mock_input = t + 2; | |
9129 | goto replay_sequence; | |
9130 | } | |
8c18cbfb | 9131 | else if (CONSP (posn)) |
7e85b935 RS |
9132 | { |
9133 | /* We're looking at the second event of a | |
9134 | sequence which we expanded before. Set | |
9135 | last_real_key_start appropriately. */ | |
9136 | if (last_real_key_start == t && t > 0) | |
9137 | last_real_key_start = t - 1; | |
9138 | } | |
a6d53864 | 9139 | } |
284f4730 | 9140 | } |
f4255cd1 JB |
9141 | |
9142 | /* We have finally decided that KEY is something we might want | |
9143 | to look up. */ | |
284f4730 JB |
9144 | first_binding = (follow_key (key, |
9145 | nmaps - first_binding, | |
253598e4 | 9146 | submaps + first_binding, |
284f4730 | 9147 | defs + first_binding, |
4e50f26a | 9148 | submaps + first_binding) |
284f4730 | 9149 | + first_binding); |
0a7f1fc0 | 9150 | |
f4255cd1 | 9151 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9152 | if (first_binding < nmaps) |
9153 | /* This is needed for the following scenario: | |
9154 | event 0: a down-event that gets dropped by calling replay_key. | |
9155 | event 1: some normal prefix like C-h. | |
a7f26f28 SM |
9156 | After event 0, first_unbound is 0, after event 1 fkey.start |
9157 | and keytran.start are both 1, so when we see that C-h is bound, | |
65e0fbbf SM |
9158 | we need to update first_unbound. */ |
9159 | first_unbound = max (t + 1, first_unbound); | |
9160 | else | |
0a7f1fc0 | 9161 | { |
9b8eb840 | 9162 | Lisp_Object head; |
c60ee5e7 | 9163 | |
a7f26f28 | 9164 | /* Remember the position to put an upper bound on fkey.start. */ |
7189cad8 | 9165 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9166 | |
9b8eb840 | 9167 | head = EVENT_HEAD (key); |
24736fbc | 9168 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9169 | { |
9170 | read_key_sequence_cmd = Vprefix_help_command; | |
9171 | keybuf[t++] = key; | |
9172 | last_nonmenu_event = key; | |
bc536d84 RS |
9173 | /* The Microsoft C compiler can't handle the goto that |
9174 | would go here. */ | |
309b0fc8 | 9175 | dummyflag = 1; |
0d882d52 | 9176 | break; |
7e85b935 RS |
9177 | } |
9178 | ||
8c18cbfb | 9179 | if (SYMBOLP (head)) |
0a7f1fc0 | 9180 | { |
9b8eb840 KH |
9181 | Lisp_Object breakdown; |
9182 | int modifiers; | |
0a7f1fc0 | 9183 | |
9b8eb840 | 9184 | breakdown = parse_modifiers (head); |
7539e11f | 9185 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9186 | /* Attempt to reduce an unbound mouse event to a simpler |
9187 | event that is bound: | |
9188 | Drags reduce to clicks. | |
9189 | Double-clicks reduce to clicks. | |
9190 | Triple-clicks reduce to double-clicks, then to clicks. | |
9191 | Down-clicks are eliminated. | |
9192 | Double-downs reduce to downs, then are eliminated. | |
9193 | Triple-downs reduce to double-downs, then to downs, | |
9194 | then are eliminated. */ | |
9195 | if (modifiers & (down_modifier | drag_modifier | |
9196 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9197 | { |
559f9d04 RS |
9198 | while (modifiers & (down_modifier | drag_modifier |
9199 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9200 | { |
9201 | Lisp_Object new_head, new_click; | |
9202 | if (modifiers & triple_modifier) | |
9203 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9204 | else if (modifiers & double_modifier) |
9205 | modifiers &= ~double_modifier; | |
9206 | else if (modifiers & drag_modifier) | |
9207 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9208 | else |
9209 | { | |
9210 | /* Dispose of this `down' event by simply jumping | |
9211 | back to replay_key, to get another event. | |
9212 | ||
9213 | Note that if this event came from mock input, | |
9214 | then just jumping back to replay_key will just | |
9215 | hand it to us again. So we have to wipe out any | |
9216 | mock input. | |
9217 | ||
9218 | We could delete keybuf[t] and shift everything | |
9219 | after that to the left by one spot, but we'd also | |
9220 | have to fix up any variable that points into | |
9221 | keybuf, and shifting isn't really necessary | |
9222 | anyway. | |
9223 | ||
9224 | Adding prefixes for non-textual mouse clicks | |
9225 | creates two characters of mock input, and both | |
9226 | must be thrown away. If we're only looking at | |
9227 | the prefix now, we can just jump back to | |
9228 | replay_key. On the other hand, if we've already | |
9229 | processed the prefix, and now the actual click | |
9230 | itself is giving us trouble, then we've lost the | |
9231 | state of the keymaps we want to backtrack to, and | |
9232 | we need to replay the whole sequence to rebuild | |
9233 | it. | |
9234 | ||
9235 | Beyond that, only function key expansion could | |
9236 | create more than two keys, but that should never | |
9237 | generate mouse events, so it's okay to zero | |
9238 | mock_input in that case too. | |
9239 | ||
65e0fbbf SM |
9240 | FIXME: The above paragraph seems just plain |
9241 | wrong, if you consider things like | |
9242 | xterm-mouse-mode. -stef | |
9243 | ||
559f9d04 | 9244 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9245 | |
9246 | /* If mock_input > t + 1, the above simplification | |
9247 | will actually end up dropping keys on the floor. | |
9248 | This is probably OK for now, but even | |
9249 | if mock_input <= t + 1, we need to adjust fkey | |
9250 | and keytran. | |
9251 | Typical case [header-line down-mouse-N]: | |
9252 | mock_input = 2, t = 1, fkey.end = 1, | |
9253 | last_real_key_start = 0. */ | |
9254 | if (fkey.end > last_real_key_start) | |
9255 | { | |
9256 | fkey.end = fkey.start | |
9257 | = min (last_real_key_start, fkey.start); | |
9258 | fkey.map = fkey.parent; | |
9259 | if (keytran.end > last_real_key_start) | |
9260 | { | |
9261 | keytran.end = keytran.start | |
9262 | = min (last_real_key_start, keytran.start); | |
9263 | keytran.map = keytran.parent; | |
9264 | } | |
9265 | } | |
559f9d04 RS |
9266 | if (t == last_real_key_start) |
9267 | { | |
9268 | mock_input = 0; | |
9269 | goto replay_key; | |
9270 | } | |
9271 | else | |
9272 | { | |
9273 | mock_input = last_real_key_start; | |
9274 | goto replay_sequence; | |
9275 | } | |
9276 | } | |
9277 | ||
27203ead | 9278 | new_head |
7539e11f | 9279 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9280 | new_click |
9281 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9282 | |
9283 | /* Look for a binding for this new key. follow_key | |
9284 | promises that it didn't munge submaps the | |
9285 | last time we called it, since key was unbound. */ | |
27203ead RS |
9286 | first_binding |
9287 | = (follow_key (new_click, | |
9288 | nmaps - local_first_binding, | |
9289 | submaps + local_first_binding, | |
9290 | defs + local_first_binding, | |
4e50f26a | 9291 | submaps + local_first_binding) |
27203ead | 9292 | + local_first_binding); |
fbcd35bd JB |
9293 | |
9294 | /* If that click is bound, go for it. */ | |
9295 | if (first_binding < nmaps) | |
9296 | { | |
9297 | key = new_click; | |
9298 | break; | |
9299 | } | |
9300 | /* Otherwise, we'll leave key set to the drag event. */ | |
9301 | } | |
0a7f1fc0 JB |
9302 | } |
9303 | } | |
9304 | } | |
9305 | ||
284f4730 | 9306 | keybuf[t++] = key; |
7d6de002 RS |
9307 | /* Normally, last_nonmenu_event gets the previous key we read. |
9308 | But when a mouse popup menu is being used, | |
9309 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9310 | event that preceded the first level of menu. */ | |
9311 | if (!used_mouse_menu) | |
9312 | last_nonmenu_event = key; | |
284f4730 | 9313 | |
6321824f RS |
9314 | /* Record what part of this_command_keys is the current key sequence. */ |
9315 | this_single_command_key_start = this_command_key_count - t; | |
9316 | ||
65e0fbbf SM |
9317 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
9318 | /* There is a binding and it's not a prefix. | |
9319 | There is thus no function-key in this sequence. | |
9320 | Moving fkey.start is important in this case to allow keytran.start | |
9321 | to go over the sequence before we return (since we keep the | |
9322 | invariant that keytran.end <= fkey.start). */ | |
9323 | { | |
a7f26f28 | 9324 | if (fkey.start < t) |
24d80a06 | 9325 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9326 | } |
9327 | else | |
9328 | /* If the sequence is unbound, see if we can hang a function key | |
9329 | off the end of it. */ | |
fe5b94c5 SM |
9330 | /* Continue scan from fkey.end until we find a bound suffix. */ |
9331 | while (fkey.end < t) | |
a612e298 | 9332 | { |
fe5b94c5 SM |
9333 | struct gcpro gcpro1, gcpro2, gcpro3; |
9334 | int done, diff; | |
9335 | ||
9336 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); | |
9337 | done = keyremap_step (keybuf, bufsize, &fkey, | |
9338 | max (t, mock_input), | |
9339 | /* If there's a binding (i.e. | |
9340 | first_binding >= nmaps) we don't want | |
9341 | to apply this function-key-mapping. */ | |
9342 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 9343 | &diff, prompt); |
fe5b94c5 SM |
9344 | UNGCPRO; |
9345 | if (done) | |
a612e298 | 9346 | { |
fe5b94c5 | 9347 | mock_input = diff + max (t, mock_input); |
a612e298 RS |
9348 | goto replay_sequence; |
9349 | } | |
fe5b94c5 | 9350 | } |
a612e298 | 9351 | |
fe5b94c5 SM |
9352 | /* Look for this sequence in key-translation-map. |
9353 | Scan from keytran.end until we find a bound suffix. */ | |
9354 | while (keytran.end < fkey.start) | |
9355 | { | |
9356 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9357 | int done, diff; | |
a612e298 | 9358 | |
fe5b94c5 SM |
9359 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
9360 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), | |
24d80a06 | 9361 | 1, &diff, prompt); |
fe5b94c5 SM |
9362 | UNGCPRO; |
9363 | if (done) | |
9364 | { | |
9365 | mock_input = diff + max (t, mock_input); | |
9366 | /* Adjust the function-key-map counters. */ | |
9367 | fkey.end += diff; | |
9368 | fkey.start += diff; | |
9369 | ||
9370 | goto replay_sequence; | |
9371 | } | |
9372 | } | |
4e50f26a RS |
9373 | |
9374 | /* If KEY is not defined in any of the keymaps, | |
9375 | and cannot be part of a function key or translation, | |
9376 | and is an upper case letter | |
9377 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9378 | if (first_binding >= nmaps |
a7f26f28 | 9379 | && fkey.start >= t && keytran.start >= t |
8c18cbfb | 9380 | && INTEGERP (key) |
c23cad0b | 9381 | && ((CHARACTERP (make_number (XINT (key) & ~CHAR_MODIFIER_MASK)) |
16747e03 | 9382 | && UPPERCASEP (XINT (key) & ~CHAR_MODIFIER_MASK)) |
4e50f26a RS |
9383 | || (XINT (key) & shift_modifier))) |
9384 | { | |
569871d2 | 9385 | Lisp_Object new_key; |
569871d2 | 9386 | |
309b0fc8 RS |
9387 | original_uppercase = key; |
9388 | original_uppercase_position = t - 1; | |
9389 | ||
831f35a2 | 9390 | if (XINT (key) & shift_modifier) |
569871d2 | 9391 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9392 | else |
16747e03 | 9393 | XSETINT (new_key, (DOWNCASE (XINT (key) & ~CHAR_MODIFIER_MASK) |
8f924df7 | 9394 | | (XINT (key) & ~CHAR_MODIFIER_MASK))); |
569871d2 | 9395 | |
3fe8e9a2 RS |
9396 | /* We have to do this unconditionally, regardless of whether |
9397 | the lower-case char is defined in the keymaps, because they | |
9398 | might get translated through function-key-map. */ | |
9399 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9400 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9401 | |
9402 | goto replay_sequence; | |
4e50f26a | 9403 | } |
ef8fd672 RS |
9404 | /* If KEY is not defined in any of the keymaps, |
9405 | and cannot be part of a function key or translation, | |
9406 | and is a shifted function key, | |
9407 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9408 | if (first_binding >= nmaps |
a7f26f28 | 9409 | && fkey.start >= t && keytran.start >= t |
ef8fd672 RS |
9410 | && SYMBOLP (key)) |
9411 | { | |
9412 | Lisp_Object breakdown; | |
9413 | int modifiers; | |
9414 | ||
9415 | breakdown = parse_modifiers (key); | |
7539e11f | 9416 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9417 | if (modifiers & shift_modifier) |
9418 | { | |
569871d2 | 9419 | Lisp_Object new_key; |
3fe8e9a2 RS |
9420 | |
9421 | original_uppercase = key; | |
9422 | original_uppercase_position = t - 1; | |
ef8fd672 | 9423 | |
569871d2 RS |
9424 | modifiers &= ~shift_modifier; |
9425 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9426 | XCAR (breakdown)); |
569871d2 | 9427 | |
3fe8e9a2 | 9428 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9429 | mock_input = max (t, mock_input); |
f1871a7d RS |
9430 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; |
9431 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
3fe8e9a2 RS |
9432 | |
9433 | goto replay_sequence; | |
ef8fd672 RS |
9434 | } |
9435 | } | |
284f4730 JB |
9436 | } |
9437 | ||
309b0fc8 | 9438 | if (!dummyflag) |
bc536d84 RS |
9439 | read_key_sequence_cmd = (first_binding < nmaps |
9440 | ? defs[first_binding] | |
9441 | : Qnil); | |
284f4730 | 9442 | |
cd21b839 | 9443 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9444 | unbind_to (count, Qnil); |
07f76a14 | 9445 | |
3fe8e9a2 RS |
9446 | /* Don't downcase the last character if the caller says don't. |
9447 | Don't downcase it if the result is undefined, either. */ | |
9448 | if ((dont_downcase_last || first_binding >= nmaps) | |
9449 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9450 | keybuf[t - 1] = original_uppercase; |
9451 | ||
07f76a14 JB |
9452 | /* Occasionally we fabricate events, perhaps by expanding something |
9453 | according to function-key-map, or by adding a prefix symbol to a | |
9454 | mouse click in the scroll bar or modeline. In this cases, return | |
9455 | the entire generated key sequence, even if we hit an unbound | |
9456 | prefix or a definition before the end. This means that you will | |
9457 | be able to push back the event properly, and also means that | |
9458 | read-key-sequence will always return a logical unit. | |
9459 | ||
9460 | Better ideas? */ | |
cca310da JB |
9461 | for (; t < mock_input; t++) |
9462 | { | |
f2647d04 DL |
9463 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9464 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9465 | echo_char (keybuf[t]); |
cca310da JB |
9466 | add_command_key (keybuf[t]); |
9467 | } | |
07f76a14 | 9468 | |
c60ee5e7 | 9469 | |
7d18f9ae | 9470 | |
2dc00208 | 9471 | UNGCPRO; |
284f4730 JB |
9472 | return t; |
9473 | } | |
9474 | ||
d5eecefb | 9475 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9476 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9477 | The sequence is sufficient to specify a non-prefix command in the | |
9478 | current local and global maps. | |
9479 | ||
9480 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9481 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9482 | as a continuation of the previous key. | |
9483 | ||
9484 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9485 | convert the last event to lower case. (Normally any upper case event | |
9486 | is converted to lower case if the original event is undefined and the lower | |
9487 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9488 | a key sequence to be defined. | |
9489 | ||
9490 | A C-g typed while in this function is treated like any other character, | |
9491 | and `quit-flag' is not set. | |
9492 | ||
9493 | If the key sequence starts with a mouse click, then the sequence is read | |
9494 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9495 | of the selected window as normal. | |
9496 | ||
9497 | `read-key-sequence' drops unbound button-down events, since you normally | |
9498 | only care about the click or drag events which follow them. If a drag | |
9499 | or multi-click event is unbound, but the corresponding click event would | |
9500 | be bound, `read-key-sequence' turns the event into a click event at the | |
9501 | drag's starting position. This means that you don't have to distinguish | |
9502 | between click and drag, double, or triple events unless you want to. | |
9503 | ||
9504 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9505 | lines separating windows, and scroll bars with imaginary keys | |
9506 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9507 | ||
9508 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9509 | function will process a switch-frame event if the user switches frames | |
9510 | before typing anything. If the user switches frames in the middle of a | |
9511 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9512 | is nil, then the event will be put off until after the current key sequence. | |
9513 | ||
9514 | `read-key-sequence' checks `function-key-map' for function key | |
9515 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9516 | `function-key-map' for more details. | |
9517 | ||
9518 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9519 | that this key sequence is being read by something that will | |
9520 | read commands one after another. It should be nil if the caller | |
9521 | will read just one key sequence. */) | |
d5eecefb RS |
9522 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9523 | command_loop) | |
309b0fc8 | 9524 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9525 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9526 | { |
9527 | Lisp_Object keybuf[30]; | |
9528 | register int i; | |
03cee6ae | 9529 | struct gcpro gcpro1; |
aed13378 | 9530 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9531 | |
9532 | if (!NILP (prompt)) | |
b7826503 | 9533 | CHECK_STRING (prompt); |
284f4730 JB |
9534 | QUIT; |
9535 | ||
d5eecefb RS |
9536 | specbind (Qinput_method_exit_on_first_char, |
9537 | (NILP (command_loop) ? Qt : Qnil)); | |
9538 | specbind (Qinput_method_use_echo_area, | |
9539 | (NILP (command_loop) ? Qt : Qnil)); | |
9540 | ||
284f4730 JB |
9541 | bzero (keybuf, sizeof keybuf); |
9542 | GCPRO1 (keybuf[0]); | |
9543 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9544 | ||
daa37602 | 9545 | if (NILP (continue_echo)) |
6321824f RS |
9546 | { |
9547 | this_command_key_count = 0; | |
63020c46 | 9548 | this_command_key_count_reset = 0; |
6321824f RS |
9549 | this_single_command_key_start = 0; |
9550 | } | |
c0a58692 | 9551 | |
d0c48478 | 9552 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9553 | if (display_hourglass_p) |
9554 | cancel_hourglass (); | |
d0c48478 GM |
9555 | #endif |
9556 | ||
309b0fc8 | 9557 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9558 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9559 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9560 | |
ae18aa3b | 9561 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9562 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9563 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9564 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9565 | if (display_hourglass_p) |
9566 | start_hourglass (); | |
ae18aa3b | 9567 | #endif |
d0c48478 GM |
9568 | #endif |
9569 | ||
dcc408a0 RS |
9570 | if (i == -1) |
9571 | { | |
9572 | Vquit_flag = Qt; | |
9573 | QUIT; | |
9574 | } | |
284f4730 | 9575 | UNGCPRO; |
d5eecefb | 9576 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9577 | } |
e39da3d7 RS |
9578 | |
9579 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9580 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9581 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9582 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9583 | command_loop) | |
e39da3d7 | 9584 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9585 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9586 | { |
9587 | Lisp_Object keybuf[30]; | |
9588 | register int i; | |
03cee6ae | 9589 | struct gcpro gcpro1; |
aed13378 | 9590 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9591 | |
9592 | if (!NILP (prompt)) | |
b7826503 | 9593 | CHECK_STRING (prompt); |
e39da3d7 RS |
9594 | QUIT; |
9595 | ||
d5eecefb RS |
9596 | specbind (Qinput_method_exit_on_first_char, |
9597 | (NILP (command_loop) ? Qt : Qnil)); | |
9598 | specbind (Qinput_method_use_echo_area, | |
9599 | (NILP (command_loop) ? Qt : Qnil)); | |
9600 | ||
e39da3d7 RS |
9601 | bzero (keybuf, sizeof keybuf); |
9602 | GCPRO1 (keybuf[0]); | |
9603 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9604 | ||
9605 | if (NILP (continue_echo)) | |
9606 | { | |
9607 | this_command_key_count = 0; | |
63020c46 | 9608 | this_command_key_count_reset = 0; |
e39da3d7 RS |
9609 | this_single_command_key_start = 0; |
9610 | } | |
9611 | ||
d0c48478 | 9612 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9613 | if (display_hourglass_p) |
9614 | cancel_hourglass (); | |
d0c48478 GM |
9615 | #endif |
9616 | ||
e39da3d7 RS |
9617 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9618 | prompt, ! NILP (dont_downcase_last), | |
9619 | ! NILP (can_return_switch_frame), 0); | |
9620 | ||
d0c48478 | 9621 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9622 | if (display_hourglass_p) |
9623 | start_hourglass (); | |
d0c48478 GM |
9624 | #endif |
9625 | ||
e39da3d7 RS |
9626 | if (i == -1) |
9627 | { | |
9628 | Vquit_flag = Qt; | |
9629 | QUIT; | |
9630 | } | |
9631 | UNGCPRO; | |
d5eecefb | 9632 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9633 | } |
284f4730 | 9634 | \f |
158f7532 | 9635 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9636 | doc: /* Execute CMD as an editor command. |
9637 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9638 | Optional second arg RECORD-FLAG non-nil | |
9639 | means unconditionally put this command in `command-history'. | |
9640 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9641 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9642 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9643 | The argument SPECIAL, if non-nil, means that this command is executing | |
9644 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9645 | (cmd, record_flag, keys, special) |
9646 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9647 | { |
9648 | register Lisp_Object final; | |
9649 | register Lisp_Object tem; | |
9650 | Lisp_Object prefixarg; | |
9651 | struct backtrace backtrace; | |
9652 | extern int debug_on_next_call; | |
9653 | ||
284f4730 JB |
9654 | debug_on_next_call = 0; |
9655 | ||
158f7532 RS |
9656 | if (NILP (special)) |
9657 | { | |
9658 | prefixarg = current_kboard->Vprefix_arg; | |
9659 | Vcurrent_prefix_arg = prefixarg; | |
9660 | current_kboard->Vprefix_arg = Qnil; | |
9661 | } | |
9662 | else | |
9663 | prefixarg = Qnil; | |
9664 | ||
8c18cbfb | 9665 | if (SYMBOLP (cmd)) |
284f4730 JB |
9666 | { |
9667 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9668 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
9669 | { |
9670 | tem = Fsymbol_value (Qdisabled_command_hook); | |
9671 | if (!NILP (tem)) | |
9672 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
9673 | } | |
284f4730 JB |
9674 | } |
9675 | ||
01e26217 | 9676 | while (1) |
284f4730 | 9677 | { |
ffd56f97 | 9678 | final = Findirect_function (cmd); |
284f4730 JB |
9679 | |
9680 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9681 | { |
9682 | struct gcpro gcpro1, gcpro2; | |
9683 | ||
9684 | GCPRO2 (cmd, prefixarg); | |
9685 | do_autoload (final, cmd); | |
9686 | UNGCPRO; | |
9687 | } | |
284f4730 JB |
9688 | else |
9689 | break; | |
9690 | } | |
9691 | ||
8c18cbfb | 9692 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9693 | { |
9694 | /* If requested, place the macro in the command history. For | |
9695 | other sorts of commands, call-interactively takes care of | |
9696 | this. */ | |
e57d8fd8 | 9697 | if (!NILP (record_flag)) |
f4385381 RS |
9698 | { |
9699 | Vcommand_history | |
9700 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9701 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9702 | Vcommand_history); | |
9703 | ||
9704 | /* Don't keep command history around forever. */ | |
9705 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9706 | { | |
9707 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9708 | if (CONSP (tem)) | |
f3fbd155 | 9709 | XSETCDR (tem, Qnil); |
f4385381 RS |
9710 | } |
9711 | } | |
284f4730 | 9712 | |
caa06051 | 9713 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 9714 | } |
f4385381 | 9715 | |
8c18cbfb | 9716 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9717 | { |
9718 | backtrace.next = backtrace_list; | |
9719 | backtrace_list = &backtrace; | |
9720 | backtrace.function = &Qcall_interactively; | |
9721 | backtrace.args = &cmd; | |
9722 | backtrace.nargs = 1; | |
9723 | backtrace.evalargs = 0; | |
9724 | ||
e57d8fd8 | 9725 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9726 | |
9727 | backtrace_list = backtrace.next; | |
9728 | return tem; | |
9729 | } | |
9730 | return Qnil; | |
9731 | } | |
c970a760 GM |
9732 | |
9733 | ||
284f4730 | 9734 | \f |
284f4730 | 9735 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9736 | 1, 1, "P", |
9737 | doc: /* Read function name, then read its arguments and call it. */) | |
9738 | (prefixarg) | |
284f4730 JB |
9739 | Lisp_Object prefixarg; |
9740 | { | |
9741 | Lisp_Object function; | |
9742 | char buf[40]; | |
2e1a49ad SM |
9743 | int saved_last_point_position; |
9744 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9745 | Lisp_Object bindings, value; |
2e1a49ad | 9746 | struct gcpro gcpro1, gcpro2, gcpro3; |
284f4730 | 9747 | |
b0f2a7bf KH |
9748 | saved_keys = Fvector (this_command_key_count, |
9749 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9750 | saved_last_point_position_buffer = last_point_position_buffer; |
9751 | saved_last_point_position = last_point_position; | |
284f4730 | 9752 | buf[0] = 0; |
2e1a49ad | 9753 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9754 | |
9755 | if (EQ (prefixarg, Qminus)) | |
9756 | strcpy (buf, "- "); | |
7539e11f | 9757 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9758 | strcpy (buf, "C-u "); |
7539e11f | 9759 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
5d5b907f RS |
9760 | { |
9761 | if (sizeof (int) == sizeof (EMACS_INT)) | |
7539e11f | 9762 | sprintf (buf, "%d ", XINT (XCAR (prefixarg))); |
5d5b907f | 9763 | else if (sizeof (long) == sizeof (EMACS_INT)) |
7539e11f | 9764 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
5d5b907f RS |
9765 | else |
9766 | abort (); | |
9767 | } | |
8c18cbfb | 9768 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
9769 | { |
9770 | if (sizeof (int) == sizeof (EMACS_INT)) | |
9771 | sprintf (buf, "%d ", XINT (prefixarg)); | |
9772 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
03cee6ae | 9773 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
5d5b907f RS |
9774 | else |
9775 | abort (); | |
9776 | } | |
284f4730 JB |
9777 | |
9778 | /* This isn't strictly correct if execute-extended-command | |
9779 | is bound to anything else. Perhaps it should use | |
9780 | this_command_keys? */ | |
9781 | strcat (buf, "M-x "); | |
9782 | ||
9783 | /* Prompt with buf, and then read a string, completing from and | |
9784 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9785 | any initial input. Save the command read on the extended-command |
03b4122a | 9786 | history list. */ |
284f4730 JB |
9787 | function = Fcompleting_read (build_string (buf), |
9788 | Vobarray, Qcommandp, | |
4328577a KH |
9789 | Qt, Qnil, Qextended_command_history, Qnil, |
9790 | Qnil); | |
284f4730 | 9791 | |
d5db4077 | 9792 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9793 | error ("No command name given"); |
9794 | ||
1113d9db JB |
9795 | /* Set this_command_keys to the concatenation of saved_keys and |
9796 | function, followed by a RET. */ | |
284f4730 | 9797 | { |
b0f2a7bf | 9798 | Lisp_Object *keys; |
284f4730 | 9799 | int i; |
284f4730 | 9800 | |
1113d9db | 9801 | this_command_key_count = 0; |
63020c46 | 9802 | this_command_key_count_reset = 0; |
6321824f | 9803 | this_single_command_key_start = 0; |
1113d9db | 9804 | |
b0f2a7bf KH |
9805 | keys = XVECTOR (saved_keys)->contents; |
9806 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9807 | add_command_key (keys[i]); | |
1113d9db | 9808 | |
1b049b51 | 9809 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9810 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9811 | |
301738ed | 9812 | add_command_key (make_number ('\015')); |
284f4730 JB |
9813 | } |
9814 | ||
2e1a49ad SM |
9815 | last_point_position = saved_last_point_position; |
9816 | last_point_position_buffer = saved_last_point_position_buffer; | |
9817 | ||
284f4730 JB |
9818 | UNGCPRO; |
9819 | ||
0a7f1fc0 | 9820 | function = Fintern (function, Qnil); |
d8bcf58e | 9821 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9822 | Vthis_command = function; |
9823 | real_this_command = function; | |
284f4730 | 9824 | |
6526ab49 RS |
9825 | /* If enabled, show which key runs this command. */ |
9826 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 9827 | && NILP (Vexecuting_macro) |
6526ab49 | 9828 | && SYMBOLP (function)) |
5434fce6 | 9829 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9830 | Qt, Qnil, Qnil); |
5434fce6 RS |
9831 | else |
9832 | bindings = Qnil; | |
6526ab49 | 9833 | |
5434fce6 RS |
9834 | value = Qnil; |
9835 | GCPRO2 (bindings, value); | |
9836 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9837 | |
5434fce6 | 9838 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9839 | if (!NILP (bindings) |
ee112567 KH |
9840 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9841 | Qmouse_movement))) | |
5434fce6 RS |
9842 | { |
9843 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9844 | int delay_time; |
985f9f66 | 9845 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9846 | /* This command displayed something in the echo area; |
9847 | so wait a few seconds, then display our suggestion message. */ | |
9848 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9849 | ? XINT (Vsuggest_key_bindings) : 2); | |
9850 | else | |
9851 | /* This command left the echo area empty, | |
9852 | so display our message immediately. */ | |
9853 | delay_time = 0; | |
9854 | ||
9855 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9856 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9857 | { |
5434fce6 RS |
9858 | Lisp_Object binding; |
9859 | char *newmessage; | |
985f9f66 | 9860 | int message_p = push_message (); |
331379bf | 9861 | int count = SPECPDL_INDEX (); |
5434fce6 | 9862 | |
65efd7da | 9863 | record_unwind_protect (pop_message_unwind, Qnil); |
5434fce6 RS |
9864 | binding = Fkey_description (bindings); |
9865 | ||
9866 | newmessage | |
d5db4077 KR |
9867 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
9868 | + SBYTES (binding) | |
5434fce6 | 9869 | + 100); |
3ababa60 | 9870 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
9871 | SDATA (SYMBOL_NAME (function)), |
9872 | SDATA (binding)); | |
301738ed RS |
9873 | message2_nolog (newmessage, |
9874 | strlen (newmessage), | |
9875 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9876 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9877 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9878 | Qnil, Qnil)) |
9879 | && message_p) | |
9880 | restore_message (); | |
9881 | ||
c970a760 | 9882 | unbind_to (count, Qnil); |
6526ab49 RS |
9883 | } |
9884 | } | |
9885 | ||
5434fce6 | 9886 | RETURN_UNGCPRO (value); |
284f4730 | 9887 | } |
6526ab49 | 9888 | |
284f4730 | 9889 | \f |
d9d4c147 | 9890 | /* Return nonzero if input events are pending. */ |
284f4730 | 9891 | |
dfcf069d | 9892 | int |
284f4730 JB |
9893 | detect_input_pending () |
9894 | { | |
9895 | if (!input_pending) | |
d9d4c147 KH |
9896 | get_input_pending (&input_pending, 0); |
9897 | ||
9898 | return input_pending; | |
9899 | } | |
9900 | ||
b1878f45 | 9901 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9902 | |
dfcf069d | 9903 | int |
87dd9b9b RS |
9904 | detect_input_pending_run_timers (do_display) |
9905 | int do_display; | |
d9d4c147 | 9906 | { |
87dd9b9b RS |
9907 | int old_timers_run = timers_run; |
9908 | ||
d9d4c147 KH |
9909 | if (!input_pending) |
9910 | get_input_pending (&input_pending, 1); | |
284f4730 | 9911 | |
87dd9b9b | 9912 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9913 | { |
3007ebfb | 9914 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9915 | /* The following fixes a bug when using lazy-lock with |
9916 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9917 | from an idle timer function. The symptom of the bug is that | |
9918 | the cursor sometimes doesn't become visible until the next X | |
9919 | event is processed. --gerd. */ | |
9920 | if (rif) | |
9921 | rif->flush_display (NULL); | |
9922 | } | |
87dd9b9b | 9923 | |
284f4730 JB |
9924 | return input_pending; |
9925 | } | |
9926 | ||
ffd56f97 JB |
9927 | /* This is called in some cases before a possible quit. |
9928 | It cases the next call to detect_input_pending to recompute input_pending. | |
9929 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9930 | |
9931 | void | |
ffd56f97 JB |
9932 | clear_input_pending () |
9933 | { | |
9934 | input_pending = 0; | |
9935 | } | |
9936 | ||
b1878f45 RS |
9937 | /* Return nonzero if there are pending requeued events. |
9938 | This isn't used yet. The hope is to make wait_reading_process_input | |
27fd22dc | 9939 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9940 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9941 | to do in that case. It isn't trivial. */ | |
9942 | ||
dfcf069d | 9943 | int |
b1878f45 RS |
9944 | requeued_events_pending_p () |
9945 | { | |
9946 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9947 | } | |
9948 | ||
9949 | ||
284f4730 | 9950 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9951 | doc: /* Return t if command input is currently available with no wait. |
9952 | Actually, the value is nil only if we can be sure that no input is available; | |
9953 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9954 | () |
284f4730 | 9955 | { |
24597608 | 9956 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9957 | return (Qt); |
9958 | ||
20057d52 | 9959 | get_filtered_input_pending (&input_pending, 1, 1); |
d9d4c147 | 9960 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
9961 | } |
9962 | ||
9963 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
9964 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
9965 | () | |
284f4730 | 9966 | { |
5160df46 | 9967 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
9968 | Lisp_Object val; |
9969 | ||
9970 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 9971 | return Fvector (total_keys, keys); |
284f4730 JB |
9972 | else |
9973 | { | |
5160df46 JB |
9974 | val = Fvector (NUM_RECENT_KEYS, keys); |
9975 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
9976 | XVECTOR (val)->contents, |
9977 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 9978 | bcopy (keys, |
284f4730 JB |
9979 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
9980 | recent_keys_index * sizeof (Lisp_Object)); | |
9981 | return val; | |
9982 | } | |
9983 | } | |
9984 | ||
9985 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 9986 | doc: /* Return the key sequence that invoked this command. |
92501652 | 9987 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 9988 | the last key sequence that has been read. |
4707d2d0 PJ |
9989 | The value is a string or a vector. */) |
9990 | () | |
284f4730 | 9991 | { |
86e5706b RS |
9992 | return make_event_array (this_command_key_count, |
9993 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
9994 | } |
9995 | ||
e39da3d7 | 9996 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
9997 | doc: /* Return the key sequence that invoked this command, as a vector. |
9998 | However, if the command has called `read-key-sequence', it returns | |
4052e7bb | 9999 | the last key sequence that has been read. */) |
4707d2d0 | 10000 | () |
e39da3d7 RS |
10001 | { |
10002 | return Fvector (this_command_key_count, | |
10003 | XVECTOR (this_command_keys)->contents); | |
10004 | } | |
10005 | ||
6321824f RS |
10006 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10007 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10008 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10009 | More generally, it returns the last key sequence read, either by |
10010 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10011 | Unlike `this-command-keys', this function's value |
10012 | does not include prefix arguments. | |
10013 | The value is always a vector. */) | |
10014 | () | |
6321824f | 10015 | { |
e39da3d7 RS |
10016 | return Fvector (this_command_key_count |
10017 | - this_single_command_key_start, | |
10018 | (XVECTOR (this_command_keys)->contents | |
10019 | + this_single_command_key_start)); | |
6321824f RS |
10020 | } |
10021 | ||
7d18f9ae RS |
10022 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10023 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10024 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10025 | More generally, it returns the last key sequence read, either by |
10026 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10027 | Unlike `this-single-command-keys', this function's value |
10028 | shows the events before all translations (except for input methods). | |
10029 | The value is always a vector. */) | |
10030 | () | |
7d18f9ae RS |
10031 | { |
10032 | return Fvector (raw_keybuf_count, | |
10033 | (XVECTOR (raw_keybuf)->contents)); | |
10034 | } | |
10035 | ||
71918b75 | 10036 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10037 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10038 | doc: /* Make the unread events replace the last command and echo. |
10039 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10040 | |
10041 | `universal-argument-other-key' rereads the event just typed. | |
10042 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10043 | The translated event has to replace the real events, |
10044 | both in the value of (this-command-keys) and in echoing. | |
10045 | To achieve this, `universal-argument-other-key' calls | |
10046 | `reset-this-command-lengths', which discards the record of reading | |
10047 | these events the first time. */) | |
4707d2d0 | 10048 | () |
71918b75 | 10049 | { |
22b94eeb RS |
10050 | this_command_key_count = before_command_key_count; |
10051 | if (this_command_key_count < this_single_command_key_start) | |
10052 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10053 | |
22b94eeb RS |
10054 | echo_truncate (before_command_echo_length); |
10055 | ||
63020c46 RS |
10056 | /* Cause whatever we put into unread-command-events |
10057 | to echo as if it were being freshly read from the keyboard. */ | |
10058 | this_command_key_count_reset = 1; | |
10059 | ||
6e5742a0 | 10060 | return Qnil; |
71918b75 RS |
10061 | } |
10062 | ||
82e6e5af | 10063 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10064 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10065 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10066 | Also clear the record of the last 100 events, unless optional arg |
10067 | KEEP-RECORD is non-nil. */) | |
10068 | (keep_record) | |
10069 | Lisp_Object keep_record; | |
82e6e5af | 10070 | { |
fb0dde6c | 10071 | int i; |
c60ee5e7 | 10072 | |
82e6e5af | 10073 | this_command_key_count = 0; |
63020c46 | 10074 | this_command_key_count_reset = 0; |
fb0dde6c | 10075 | |
ab1959fc KS |
10076 | if (NILP (keep_record)) |
10077 | { | |
10078 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10079 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10080 | total_keys = 0; | |
10081 | recent_keys_index = 0; | |
10082 | } | |
82e6e5af RS |
10083 | return Qnil; |
10084 | } | |
10085 | ||
284f4730 | 10086 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
10087 | doc: /* Return the current depth in recursive edits. */) |
10088 | () | |
284f4730 JB |
10089 | { |
10090 | Lisp_Object temp; | |
bb9e9bed | 10091 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10092 | return temp; |
10093 | } | |
10094 | ||
10095 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10096 | "FOpen dribble file: ", |
10097 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10098 | If FILE is nil, close any open dribble file. */) | |
10099 | (file) | |
284f4730 JB |
10100 | Lisp_Object file; |
10101 | { | |
6cb52def | 10102 | if (dribble) |
284f4730 | 10103 | { |
6cb52def KH |
10104 | fclose (dribble); |
10105 | dribble = 0; | |
284f4730 | 10106 | } |
6cb52def | 10107 | if (!NILP (file)) |
284f4730 JB |
10108 | { |
10109 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10110 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10111 | if (dribble == 0) |
10112 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10113 | } |
10114 | return Qnil; | |
10115 | } | |
10116 | ||
10117 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10118 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10119 | Also end any kbd macro being defined. */) |
4707d2d0 | 10120 | () |
284f4730 | 10121 | { |
2b17d5ed KS |
10122 | if (!NILP (current_kboard->defining_kbd_macro)) |
10123 | { | |
10124 | /* Discard the last command from the macro. */ | |
10125 | Fcancel_kbd_macro_events (); | |
10126 | end_kbd_macro (); | |
10127 | } | |
10128 | ||
284f4730 JB |
10129 | update_mode_lines++; |
10130 | ||
24597608 | 10131 | Vunread_command_events = Qnil; |
86e5706b | 10132 | unread_command_char = -1; |
284f4730 JB |
10133 | |
10134 | discard_tty_input (); | |
10135 | ||
7ee32cda | 10136 | kbd_fetch_ptr = kbd_store_ptr; |
da8f7368 | 10137 | Ffillarray (kbd_buffer_gcpro, Qnil); |
284f4730 JB |
10138 | input_pending = 0; |
10139 | ||
10140 | return Qnil; | |
10141 | } | |
10142 | \f | |
10143 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10144 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10145 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10146 | control, run a subshell instead. | |
10147 | ||
10148 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10149 | to be read as terminal input by Emacs's parent, after suspension. | |
10150 | ||
10151 | Before suspending, run the normal hook `suspend-hook'. | |
10152 | After resumption run the normal hook `suspend-resume-hook'. | |
10153 | ||
10154 | Some operating systems cannot stop the Emacs process and resume it later. | |
10155 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10156 | (stuffstring) | |
284f4730 JB |
10157 | Lisp_Object stuffstring; |
10158 | { | |
aed13378 | 10159 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10160 | int old_height, old_width; |
10161 | int width, height; | |
03cee6ae | 10162 | struct gcpro gcpro1; |
284f4730 JB |
10163 | |
10164 | if (!NILP (stuffstring)) | |
b7826503 | 10165 | CHECK_STRING (stuffstring); |
284f4730 | 10166 | |
1e95ed28 JB |
10167 | /* Run the functions in suspend-hook. */ |
10168 | if (!NILP (Vrun_hooks)) | |
10169 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10170 | |
b7d2ebbf | 10171 | GCPRO1 (stuffstring); |
ff11dfa1 | 10172 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
10173 | reset_sys_modes (); |
10174 | /* sys_suspend can get an error if it tries to fork a subshell | |
10175 | and the system resources aren't available for that. */ | |
91a0da02 | 10176 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 10177 | Qnil); |
284f4730 | 10178 | stuff_buffered_input (stuffstring); |
8026024c KH |
10179 | if (cannot_suspend) |
10180 | sys_subshell (); | |
10181 | else | |
10182 | sys_suspend (); | |
284f4730 JB |
10183 | unbind_to (count, Qnil); |
10184 | ||
10185 | /* Check if terminal/window size has changed. | |
10186 | Note that this is not useful when we are running directly | |
10187 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 10188 | get_frame_size (&width, &height); |
284f4730 | 10189 | if (width != old_width || height != old_height) |
788f89eb | 10190 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10191 | |
1e95ed28 | 10192 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10193 | if (!NILP (Vrun_hooks)) |
10194 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10195 | |
284f4730 JB |
10196 | UNGCPRO; |
10197 | return Qnil; | |
10198 | } | |
10199 | ||
10200 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10201 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10202 | |
07a59269 | 10203 | void |
284f4730 JB |
10204 | stuff_buffered_input (stuffstring) |
10205 | Lisp_Object stuffstring; | |
10206 | { | |
284f4730 | 10207 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 10208 | #ifdef BSD_SYSTEM |
284f4730 | 10209 | #ifndef BSD4_1 |
612b78ef | 10210 | register unsigned char *p; |
612b78ef | 10211 | |
8c18cbfb | 10212 | if (STRINGP (stuffstring)) |
284f4730 JB |
10213 | { |
10214 | register int count; | |
10215 | ||
d5db4077 KR |
10216 | p = SDATA (stuffstring); |
10217 | count = SBYTES (stuffstring); | |
284f4730 JB |
10218 | while (count-- > 0) |
10219 | stuff_char (*p++); | |
10220 | stuff_char ('\n'); | |
10221 | } | |
c60ee5e7 | 10222 | |
284f4730 | 10223 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10224 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 10225 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 10226 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10227 | { |
da8f7368 | 10228 | int idx; |
c60ee5e7 | 10229 | |
beecf6a1 KH |
10230 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10231 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10232 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10233 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10234 | |
3b8f9651 | 10235 | kbd_fetch_ptr->kind = NO_EVENT; |
da8f7368 GM |
10236 | idx = 2 * (kbd_fetch_ptr - kbd_buffer); |
10237 | ASET (kbd_buffer_gcpro, idx, Qnil); | |
10238 | ASET (kbd_buffer_gcpro, idx + 1, Qnil); | |
284f4730 | 10239 | } |
c60ee5e7 | 10240 | |
284f4730 JB |
10241 | input_pending = 0; |
10242 | #endif | |
6df54671 | 10243 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
10244 | } |
10245 | \f | |
dfcf069d | 10246 | void |
ffd56f97 JB |
10247 | set_waiting_for_input (time_to_clear) |
10248 | EMACS_TIME *time_to_clear; | |
284f4730 | 10249 | { |
ffd56f97 | 10250 | input_available_clear_time = time_to_clear; |
284f4730 JB |
10251 | |
10252 | /* Tell interrupt_signal to throw back to read_char, */ | |
10253 | waiting_for_input = 1; | |
10254 | ||
10255 | /* If interrupt_signal was called before and buffered a C-g, | |
10256 | make it run again now, to avoid timing error. */ | |
10257 | if (!NILP (Vquit_flag)) | |
10258 | quit_throw_to_read_char (); | |
284f4730 JB |
10259 | } |
10260 | ||
07a59269 | 10261 | void |
284f4730 JB |
10262 | clear_waiting_for_input () |
10263 | { | |
10264 | /* Tell interrupt_signal not to throw back to read_char, */ | |
10265 | waiting_for_input = 0; | |
ffd56f97 | 10266 | input_available_clear_time = 0; |
284f4730 JB |
10267 | } |
10268 | ||
27fd22dc | 10269 | /* This routine is called at interrupt level in response to C-g. |
c60ee5e7 | 10270 | |
d4e68eea GM |
10271 | If interrupt_input, this is the handler for SIGINT. Otherwise, it |
10272 | is called from kbd_buffer_store_event, in handling SIGIO or | |
10273 | SIGTINT. | |
284f4730 | 10274 | |
d4e68eea GM |
10275 | If `waiting_for_input' is non zero, then unless `echoing' is |
10276 | nonzero, immediately throw back to read_char. | |
284f4730 | 10277 | |
d4e68eea GM |
10278 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
10279 | eval to throw, when it gets a chance. If quit-flag is already | |
10280 | non-nil, it stops the job right away. */ | |
284f4730 | 10281 | |
14e40288 | 10282 | static SIGTYPE |
91c049d4 RS |
10283 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10284 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
10285 | { |
10286 | char c; | |
10287 | /* Must preserve main program's value of errno. */ | |
10288 | int old_errno = errno; | |
788f89eb | 10289 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 10290 | |
5970a8cb | 10291 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
10292 | if (!read_socket_hook && NILP (Vwindow_system)) |
10293 | { | |
10294 | /* USG systems forget handlers when they are used; | |
10295 | must reestablish each time */ | |
10296 | signal (SIGINT, interrupt_signal); | |
10297 | signal (SIGQUIT, interrupt_signal); | |
10298 | } | |
284f4730 JB |
10299 | #endif /* USG */ |
10300 | ||
10301 | cancel_echoing (); | |
10302 | ||
31e4e97b | 10303 | if (!NILP (Vquit_flag) |
788f89eb | 10304 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 10305 | { |
31e4e97b EZ |
10306 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10307 | another SIGINT, it might be harmful due to non-reentrancy | |
10308 | in I/O functions. */ | |
10309 | sigblock (sigmask (SIGINT)); | |
10310 | ||
284f4730 JB |
10311 | fflush (stdout); |
10312 | reset_sys_modes (); | |
31e4e97b | 10313 | |
284f4730 JB |
10314 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10315 | /* | |
10316 | * On systems which can suspend the current process and return to the original | |
10317 | * shell, this command causes the user to end up back at the shell. | |
10318 | * The "Auto-save" and "Abort" questions are not asked until | |
10319 | * the user elects to return to emacs, at which point he can save the current | |
10320 | * job and either dump core or continue. | |
10321 | */ | |
10322 | sys_suspend (); | |
10323 | #else | |
10324 | #ifdef VMS | |
10325 | if (sys_suspend () == -1) | |
10326 | { | |
10327 | printf ("Not running as a subprocess;\n"); | |
10328 | printf ("you can continue or abort.\n"); | |
10329 | } | |
10330 | #else /* not VMS */ | |
10331 | /* Perhaps should really fork an inferior shell? | |
10332 | But that would not provide any way to get back | |
10333 | to the original shell, ever. */ | |
10334 | printf ("No support for stopping a process on this operating system;\n"); | |
10335 | printf ("you can continue or abort.\n"); | |
10336 | #endif /* not VMS */ | |
10337 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
10338 | #ifdef MSDOS |
10339 | /* We must remain inside the screen area when the internal terminal | |
10340 | is used. Note that [Enter] is not echoed by dos. */ | |
10341 | cursor_to (0, 0); | |
10342 | #endif | |
118d6ca9 RS |
10343 | /* It doesn't work to autosave while GC is in progress; |
10344 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10345 | if (!gc_in_progress) | |
9fd7d808 | 10346 | { |
118d6ca9 RS |
10347 | printf ("Auto-save? (y or n) "); |
10348 | fflush (stdout); | |
10349 | if (((c = getchar ()) & ~040) == 'Y') | |
10350 | { | |
10351 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10352 | #ifdef MSDOS |
118d6ca9 | 10353 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10354 | #else /* not MSDOS */ |
118d6ca9 | 10355 | printf ("Auto-save done\n"); |
80e4aa30 | 10356 | #endif /* not MSDOS */ |
118d6ca9 RS |
10357 | } |
10358 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10359 | } |
c60ee5e7 | 10360 | else |
118d6ca9 RS |
10361 | { |
10362 | /* During GC, it must be safe to reenable quitting again. */ | |
10363 | Vinhibit_quit = Qnil; | |
10364 | #ifdef MSDOS | |
10365 | printf ("\r\n"); | |
10366 | #endif /* not MSDOS */ | |
10367 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10368 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10369 | fflush (stdout); | |
10370 | } | |
10371 | ||
80e4aa30 RS |
10372 | #ifdef MSDOS |
10373 | printf ("\r\nAbort? (y or n) "); | |
10374 | #else /* not MSDOS */ | |
284f4730 JB |
10375 | #ifdef VMS |
10376 | printf ("Abort (and enter debugger)? (y or n) "); | |
10377 | #else /* not VMS */ | |
10378 | printf ("Abort (and dump core)? (y or n) "); | |
10379 | #endif /* not VMS */ | |
80e4aa30 | 10380 | #endif /* not MSDOS */ |
284f4730 JB |
10381 | fflush (stdout); |
10382 | if (((c = getchar ()) & ~040) == 'Y') | |
10383 | abort (); | |
10384 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10385 | #ifdef MSDOS |
10386 | printf ("\r\nContinuing...\r\n"); | |
10387 | #else /* not MSDOS */ | |
284f4730 | 10388 | printf ("Continuing...\n"); |
80e4aa30 | 10389 | #endif /* not MSDOS */ |
284f4730 JB |
10390 | fflush (stdout); |
10391 | init_sys_modes (); | |
31e4e97b | 10392 | sigfree (); |
284f4730 JB |
10393 | } |
10394 | else | |
10395 | { | |
10396 | /* If executing a function that wants to be interrupted out of | |
10397 | and the user has not deferred quitting by binding `inhibit-quit' | |
10398 | then quit right away. */ | |
10399 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10400 | { | |
e39da3d7 RS |
10401 | struct gl_state_s saved; |
10402 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10403 | ||
284f4730 JB |
10404 | immediate_quit = 0; |
10405 | sigfree (); | |
e39da3d7 RS |
10406 | saved = gl_state; |
10407 | GCPRO4 (saved.object, saved.global_code, | |
10408 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10409 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10410 | gl_state = saved; |
10411 | UNGCPRO; | |
284f4730 JB |
10412 | } |
10413 | else | |
10414 | /* Else request quit when it's safe */ | |
10415 | Vquit_flag = Qt; | |
10416 | } | |
10417 | ||
10418 | if (waiting_for_input && !echoing) | |
10419 | quit_throw_to_read_char (); | |
10420 | ||
10421 | errno = old_errno; | |
10422 | } | |
10423 | ||
10424 | /* Handle a C-g by making read_char return C-g. */ | |
10425 | ||
07a59269 | 10426 | void |
284f4730 JB |
10427 | quit_throw_to_read_char () |
10428 | { | |
284f4730 JB |
10429 | sigfree (); |
10430 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10431 | clear_waiting_for_input (); |
284f4730 JB |
10432 | input_pending = 0; |
10433 | ||
24597608 | 10434 | Vunread_command_events = Qnil; |
86e5706b | 10435 | unread_command_char = -1; |
284f4730 | 10436 | |
087feab3 RS |
10437 | #if 0 /* Currently, sit_for is called from read_char without turning |
10438 | off polling. And that can call set_waiting_for_input. | |
10439 | It seems to be harmless. */ | |
e6b01c14 JB |
10440 | #ifdef POLL_FOR_INPUT |
10441 | /* May be > 1 if in recursive minibuffer. */ | |
10442 | if (poll_suppress_count == 0) | |
10443 | abort (); | |
10444 | #endif | |
087feab3 | 10445 | #endif |
4c52b668 | 10446 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10447 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10448 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10449 | 0, 0); |
e6b01c14 | 10450 | |
284f4730 JB |
10451 | _longjmp (getcjmp, 1); |
10452 | } | |
10453 | \f | |
10454 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10455 | doc: /* Set mode of reading keyboard input. |
10456 | First arg INTERRUPT non-nil means use input interrupts; | |
10457 | nil means use CBREAK mode. | |
10458 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10459 | (no effect except in CBREAK mode). | |
10460 | Third arg META t means accept 8-bit input (for a Meta key). | |
10461 | META nil means ignore the top bit, on the assumption it is parity. | |
10462 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10463 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10464 | See also `current-input-mode'. */) | |
10465 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10466 | Lisp_Object interrupt, flow, meta, quit; |
10467 | { | |
10468 | if (!NILP (quit) | |
8c18cbfb | 10469 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10470 | error ("set-input-mode: QUIT must be an ASCII character"); |
10471 | ||
10472 | #ifdef POLL_FOR_INPUT | |
10473 | stop_polling (); | |
10474 | #endif | |
284f4730 | 10475 | |
07de30b9 | 10476 | #ifndef DOS_NT |
2ee250ec | 10477 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10478 | reset_sys_modes (); |
2ee250ec RS |
10479 | #endif |
10480 | ||
284f4730 JB |
10481 | #ifdef SIGIO |
10482 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10483 | if (read_socket_hook) |
9a0f60bb KH |
10484 | { |
10485 | /* When using X, don't give the user a real choice, | |
10486 | because we haven't implemented the mechanisms to support it. */ | |
10487 | #ifdef NO_SOCK_SIGIO | |
10488 | interrupt_input = 0; | |
10489 | #else /* not NO_SOCK_SIGIO */ | |
10490 | interrupt_input = 1; | |
284f4730 | 10491 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10492 | } |
10493 | else | |
284f4730 JB |
10494 | interrupt_input = !NILP (interrupt); |
10495 | #else /* not SIGIO */ | |
10496 | interrupt_input = 0; | |
10497 | #endif /* not SIGIO */ | |
9a0f60bb | 10498 | |
284f4730 JB |
10499 | /* Our VMS input only works by interrupts, as of now. */ |
10500 | #ifdef VMS | |
10501 | interrupt_input = 1; | |
10502 | #endif | |
9a0f60bb | 10503 | |
284f4730 | 10504 | flow_control = !NILP (flow); |
b04904fb RS |
10505 | if (NILP (meta)) |
10506 | meta_key = 0; | |
10507 | else if (EQ (meta, Qt)) | |
10508 | meta_key = 1; | |
10509 | else | |
10510 | meta_key = 2; | |
284f4730 JB |
10511 | if (!NILP (quit)) |
10512 | /* Don't let this value be out of range. */ | |
10513 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10514 | ||
07de30b9 | 10515 | #ifndef DOS_NT |
284f4730 | 10516 | init_sys_modes (); |
2ee250ec | 10517 | #endif |
34f04431 RS |
10518 | |
10519 | #ifdef POLL_FOR_INPUT | |
10520 | poll_suppress_count = 1; | |
10521 | start_polling (); | |
10522 | #endif | |
284f4730 JB |
10523 | return Qnil; |
10524 | } | |
80645119 JB |
10525 | |
10526 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10527 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10528 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10529 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10530 | nil, Emacs is using CBREAK mode. | |
10531 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10532 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10533 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10534 | META nil means ignoring the top bit, on the assumption it is parity. | |
10535 | META is neither t nor nil if accepting 8-bit input and using | |
10536 | all 8 bits as the character code. | |
10537 | QUIT is the character Emacs currently uses to quit. | |
10538 | The elements of this list correspond to the arguments of | |
10539 | `set-input-mode'. */) | |
10540 | () | |
80645119 JB |
10541 | { |
10542 | Lisp_Object val[4]; | |
10543 | ||
10544 | val[0] = interrupt_input ? Qt : Qnil; | |
10545 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10546 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10547 | XSETFASTINT (val[3], quit_char); |
80645119 | 10548 | |
bf673a7a | 10549 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10550 | } |
10551 | ||
284f4730 | 10552 | \f |
6c6083a9 | 10553 | /* |
c5fdd383 | 10554 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10555 | */ |
10556 | void | |
c5fdd383 KH |
10557 | init_kboard (kb) |
10558 | KBOARD *kb; | |
6c6083a9 | 10559 | { |
217258d5 | 10560 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10561 | kb->Vlast_command = Qnil; |
75045dcb | 10562 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10563 | kb->Vprefix_arg = Qnil; |
75045dcb | 10564 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10565 | kb->kbd_queue = Qnil; |
10566 | kb->kbd_queue_has_data = 0; | |
10567 | kb->immediate_echo = 0; | |
678e9d18 | 10568 | kb->echo_string = Qnil; |
c5fdd383 KH |
10569 | kb->echo_after_prompt = -1; |
10570 | kb->kbd_macro_buffer = 0; | |
10571 | kb->kbd_macro_bufsize = 0; | |
10572 | kb->defining_kbd_macro = Qnil; | |
10573 | kb->Vlast_kbd_macro = Qnil; | |
10574 | kb->reference_count = 0; | |
7c97ffdc | 10575 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10576 | kb->system_key_syms = Qnil; |
9ba47203 | 10577 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10578 | } |
10579 | ||
10580 | /* | |
c5fdd383 | 10581 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10582 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10583 | * it a second time. |
10584 | */ | |
e50b8090 | 10585 | static void |
c5fdd383 KH |
10586 | wipe_kboard (kb) |
10587 | KBOARD *kb; | |
6c6083a9 | 10588 | { |
c5fdd383 KH |
10589 | if (kb->kbd_macro_buffer) |
10590 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10591 | } |
10592 | ||
e50b8090 | 10593 | #ifdef MULTI_KBOARD |
a122a38e GM |
10594 | |
10595 | /* Free KB and memory referenced from it. */ | |
10596 | ||
e50b8090 KH |
10597 | void |
10598 | delete_kboard (kb) | |
a122a38e | 10599 | KBOARD *kb; |
e50b8090 KH |
10600 | { |
10601 | KBOARD **kbp; | |
c60ee5e7 | 10602 | |
e50b8090 KH |
10603 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10604 | if (*kbp == NULL) | |
10605 | abort (); | |
10606 | *kbp = kb->next_kboard; | |
a122a38e GM |
10607 | |
10608 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10609 | if (kb == current_kboard |
10610 | && FRAMEP (selected_frame) | |
10611 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10612 | { |
18f534df | 10613 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10614 | if (current_kboard == kb) |
10615 | abort (); | |
10616 | } | |
c60ee5e7 | 10617 | |
e50b8090 KH |
10618 | wipe_kboard (kb); |
10619 | xfree (kb); | |
10620 | } | |
a122a38e GM |
10621 | |
10622 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10623 | |
dfcf069d | 10624 | void |
284f4730 JB |
10625 | init_keyboard () |
10626 | { | |
284f4730 JB |
10627 | /* This is correct before outermost invocation of the editor loop */ |
10628 | command_loop_level = -1; | |
10629 | immediate_quit = 0; | |
10630 | quit_char = Ctl ('g'); | |
24597608 | 10631 | Vunread_command_events = Qnil; |
86e5706b | 10632 | unread_command_char = -1; |
87dd9b9b | 10633 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10634 | total_keys = 0; |
9deb415a | 10635 | recent_keys_index = 0; |
beecf6a1 KH |
10636 | kbd_fetch_ptr = kbd_buffer; |
10637 | kbd_store_ptr = kbd_buffer; | |
da8f7368 | 10638 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
2eb6bfbe | 10639 | #ifdef HAVE_MOUSE |
a9d77f1f | 10640 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10641 | #endif |
284f4730 JB |
10642 | input_pending = 0; |
10643 | ||
4c52b668 KH |
10644 | /* This means that command_loop_1 won't try to select anything the first |
10645 | time through. */ | |
10646 | internal_last_event_frame = Qnil; | |
10647 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10648 | |
c5fdd383 | 10649 | #ifdef MULTI_KBOARD |
aaca43a1 | 10650 | current_kboard = initial_kboard; |
6c6083a9 | 10651 | #endif |
aaca43a1 | 10652 | wipe_kboard (current_kboard); |
c5fdd383 | 10653 | init_kboard (current_kboard); |
07d2b8de | 10654 | |
7a80a6f6 | 10655 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10656 | { |
10657 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10658 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10659 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10660 | SIGQUIT and we can't tell which one it will give us. */ | |
10661 | signal (SIGQUIT, interrupt_signal); | |
10662 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10663 | } |
284f4730 JB |
10664 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10665 | #ifdef SIGIO | |
7a80a6f6 RS |
10666 | if (!noninteractive) |
10667 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10668 | #endif /* SIGIO */ |
284f4730 JB |
10669 | |
10670 | /* Use interrupt input by default, if it works and noninterrupt input | |
10671 | has deficiencies. */ | |
10672 | ||
10673 | #ifdef INTERRUPT_INPUT | |
10674 | interrupt_input = 1; | |
10675 | #else | |
10676 | interrupt_input = 0; | |
10677 | #endif | |
10678 | ||
10679 | /* Our VMS input only works by interrupts, as of now. */ | |
10680 | #ifdef VMS | |
10681 | interrupt_input = 1; | |
10682 | #endif | |
10683 | ||
10684 | sigfree (); | |
10685 | dribble = 0; | |
10686 | ||
10687 | if (keyboard_init_hook) | |
10688 | (*keyboard_init_hook) (); | |
10689 | ||
10690 | #ifdef POLL_FOR_INPUT | |
10691 | poll_suppress_count = 1; | |
10692 | start_polling (); | |
10693 | #endif | |
365fa1b3 AC |
10694 | |
10695 | #ifdef MAC_OSX | |
10696 | /* At least provide an escape route since C-g doesn't work. */ | |
10697 | signal (SIGINT, interrupt_signal); | |
10698 | #endif | |
284f4730 JB |
10699 | } |
10700 | ||
df0f2ba1 | 10701 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10702 | event header symbols and put properties on them. */ |
10703 | struct event_head { | |
10704 | Lisp_Object *var; | |
10705 | char *name; | |
10706 | Lisp_Object *kind; | |
10707 | }; | |
10708 | ||
10709 | struct event_head head_table[] = { | |
7406e988 PJ |
10710 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10711 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10712 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10713 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10714 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 10715 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
10716 | /* `select-window' should be handled just like `switch-frame' |
10717 | in read_key_sequence. */ | |
10718 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
10719 | }; |
10720 | ||
dfcf069d | 10721 | void |
284f4730 JB |
10722 | syms_of_keyboard () |
10723 | { | |
f0c1cc56 GM |
10724 | Vpre_help_message = Qnil; |
10725 | staticpro (&Vpre_help_message); | |
c60ee5e7 | 10726 | |
8e1e4240 GM |
10727 | Vlispy_mouse_stem = build_string ("mouse"); |
10728 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10729 | |
9ea173e8 | 10730 | /* Tool-bars. */ |
7ee32cda GM |
10731 | QCimage = intern (":image"); |
10732 | staticpro (&QCimage); | |
10733 | ||
10734 | staticpro (&Qhelp_echo); | |
10735 | Qhelp_echo = intern ("help-echo"); | |
10736 | ||
e8886a1d RS |
10737 | staticpro (&item_properties); |
10738 | item_properties = Qnil; | |
10739 | ||
9ea173e8 GM |
10740 | staticpro (&tool_bar_item_properties); |
10741 | tool_bar_item_properties = Qnil; | |
10742 | staticpro (&tool_bar_items_vector); | |
10743 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10744 | |
d5eecefb RS |
10745 | staticpro (&real_this_command); |
10746 | real_this_command = Qnil; | |
10747 | ||
d925fb39 RS |
10748 | Qtimer_event_handler = intern ("timer-event-handler"); |
10749 | staticpro (&Qtimer_event_handler); | |
10750 | ||
2e894dab RS |
10751 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
10752 | staticpro (&Qdisabled_command_hook); | |
10753 | ||
284f4730 JB |
10754 | Qself_insert_command = intern ("self-insert-command"); |
10755 | staticpro (&Qself_insert_command); | |
10756 | ||
10757 | Qforward_char = intern ("forward-char"); | |
10758 | staticpro (&Qforward_char); | |
10759 | ||
10760 | Qbackward_char = intern ("backward-char"); | |
10761 | staticpro (&Qbackward_char); | |
10762 | ||
10763 | Qdisabled = intern ("disabled"); | |
10764 | staticpro (&Qdisabled); | |
10765 | ||
e58aa385 RS |
10766 | Qundefined = intern ("undefined"); |
10767 | staticpro (&Qundefined); | |
10768 | ||
86e5706b RS |
10769 | Qpre_command_hook = intern ("pre-command-hook"); |
10770 | staticpro (&Qpre_command_hook); | |
10771 | ||
10772 | Qpost_command_hook = intern ("post-command-hook"); | |
10773 | staticpro (&Qpost_command_hook); | |
10774 | ||
59aadc81 RS |
10775 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
10776 | staticpro (&Qpost_command_idle_hook); | |
10777 | ||
3ef14e46 RS |
10778 | Qdeferred_action_function = intern ("deferred-action-function"); |
10779 | staticpro (&Qdeferred_action_function); | |
10780 | ||
40932d1a RS |
10781 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10782 | staticpro (&Qcommand_hook_internal); | |
10783 | ||
284f4730 JB |
10784 | Qfunction_key = intern ("function-key"); |
10785 | staticpro (&Qfunction_key); | |
13b5e56c | 10786 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10787 | staticpro (&Qmouse_click); |
742fbed7 | 10788 | #ifdef WINDOWSNT |
1161d367 GV |
10789 | Qlanguage_change = intern ("language-change"); |
10790 | staticpro (&Qlanguage_change); | |
07de30b9 | 10791 | #endif |
a24dc617 RS |
10792 | Qdrag_n_drop = intern ("drag-n-drop"); |
10793 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10794 | |
4ebc27a5 JD |
10795 | Qsave_session = intern ("save-session"); |
10796 | staticpro(&Qsave_session); | |
c60ee5e7 | 10797 | |
5bf68f6e AS |
10798 | Qusr1_signal = intern ("usr1-signal"); |
10799 | staticpro (&Qusr1_signal); | |
10800 | Qusr2_signal = intern ("usr2-signal"); | |
10801 | staticpro (&Qusr2_signal); | |
10802 | ||
598a9fa7 JB |
10803 | Qmenu_enable = intern ("menu-enable"); |
10804 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10805 | Qmenu_alias = intern ("menu-alias"); |
10806 | staticpro (&Qmenu_alias); | |
10807 | QCenable = intern (":enable"); | |
10808 | staticpro (&QCenable); | |
10809 | QCvisible = intern (":visible"); | |
10810 | staticpro (&QCvisible); | |
7ee32cda GM |
10811 | QChelp = intern (":help"); |
10812 | staticpro (&QChelp); | |
e8886a1d RS |
10813 | QCfilter = intern (":filter"); |
10814 | staticpro (&QCfilter); | |
10815 | QCbutton = intern (":button"); | |
10816 | staticpro (&QCbutton); | |
74c1de23 RS |
10817 | QCkeys = intern (":keys"); |
10818 | staticpro (&QCkeys); | |
10819 | QCkey_sequence = intern (":key-sequence"); | |
10820 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10821 | QCtoggle = intern (":toggle"); |
10822 | staticpro (&QCtoggle); | |
10823 | QCradio = intern (":radio"); | |
10824 | staticpro (&QCradio); | |
598a9fa7 | 10825 | |
284f4730 JB |
10826 | Qmode_line = intern ("mode-line"); |
10827 | staticpro (&Qmode_line); | |
e5d77022 JB |
10828 | Qvertical_line = intern ("vertical-line"); |
10829 | staticpro (&Qvertical_line); | |
3c370943 JB |
10830 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10831 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10832 | Qmenu_bar = intern ("menu-bar"); |
10833 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
10834 | |
10835 | Qabove_handle = intern ("above-handle"); | |
10836 | staticpro (&Qabove_handle); | |
10837 | Qhandle = intern ("handle"); | |
10838 | staticpro (&Qhandle); | |
10839 | Qbelow_handle = intern ("below-handle"); | |
10840 | staticpro (&Qbelow_handle); | |
db08707d RS |
10841 | Qup = intern ("up"); |
10842 | staticpro (&Qup); | |
10843 | Qdown = intern ("down"); | |
10844 | staticpro (&Qdown); | |
7ee32cda GM |
10845 | Qtop = intern ("top"); |
10846 | staticpro (&Qtop); | |
10847 | Qbottom = intern ("bottom"); | |
10848 | staticpro (&Qbottom); | |
10849 | Qend_scroll = intern ("end-scroll"); | |
10850 | staticpro (&Qend_scroll); | |
eef28553 SM |
10851 | Qratio = intern ("ratio"); |
10852 | staticpro (&Qratio); | |
284f4730 | 10853 | |
cd21b839 | 10854 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10855 | staticpro (&Qevent_kind); |
88cb0656 JB |
10856 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10857 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10858 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10859 | staticpro (&Qevent_symbol_element_mask); | |
10860 | Qmodifier_cache = intern ("modifier-cache"); | |
10861 | staticpro (&Qmodifier_cache); | |
284f4730 | 10862 | |
48e416d4 RS |
10863 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10864 | staticpro (&Qrecompute_lucid_menubar); | |
10865 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10866 | staticpro (&Qactivate_menubar_hook); | |
10867 | ||
f4eef8b4 RS |
10868 | Qpolling_period = intern ("polling-period"); |
10869 | staticpro (&Qpolling_period); | |
10870 | ||
7d18f9ae RS |
10871 | Qinput_method_function = intern ("input-method-function"); |
10872 | staticpro (&Qinput_method_function); | |
10873 | ||
d5eecefb RS |
10874 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10875 | staticpro (&Qinput_method_exit_on_first_char); | |
10876 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10877 | staticpro (&Qinput_method_use_echo_area); | |
10878 | ||
10879 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10880 | Fset (Qinput_method_use_echo_area, Qnil); | |
10881 | ||
e18dfbf4 KR |
10882 | last_point_position_buffer = Qnil; |
10883 | ||
284f4730 JB |
10884 | { |
10885 | struct event_head *p; | |
10886 | ||
10887 | for (p = head_table; | |
10888 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10889 | p++) | |
10890 | { | |
10891 | *p->var = intern (p->name); | |
10892 | staticpro (p->var); | |
10893 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10894 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10895 | } |
10896 | } | |
10897 | ||
8e1e4240 | 10898 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10899 | staticpro (&button_down_location); |
8e1e4240 GM |
10900 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10901 | staticpro (&mouse_syms); | |
8006e4bb JR |
10902 | wheel_syms = Fmake_vector (make_number (2), Qnil); |
10903 | staticpro (&wheel_syms); | |
88cb0656 JB |
10904 | |
10905 | { | |
10906 | int i; | |
10907 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10908 | ||
10909 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10910 | for (i = 0; i < len; i++) | |
86e5706b RS |
10911 | if (modifier_names[i]) |
10912 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10913 | staticpro (&modifier_symbols); |
10914 | } | |
10915 | ||
9deb415a JB |
10916 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10917 | staticpro (&recent_keys); | |
10918 | ||
6569cc8d | 10919 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10920 | staticpro (&this_command_keys); |
6569cc8d | 10921 | |
7d18f9ae RS |
10922 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10923 | staticpro (&raw_keybuf); | |
10924 | ||
03b4122a BF |
10925 | Qextended_command_history = intern ("extended-command-history"); |
10926 | Fset (Qextended_command_history, Qnil); | |
10927 | staticpro (&Qextended_command_history); | |
10928 | ||
da8f7368 GM |
10929 | kbd_buffer_gcpro = Fmake_vector (make_number (2 * KBD_BUFFER_SIZE), Qnil); |
10930 | staticpro (&kbd_buffer_gcpro); | |
beecf6a1 | 10931 | |
24597608 RS |
10932 | accent_key_syms = Qnil; |
10933 | staticpro (&accent_key_syms); | |
10934 | ||
284f4730 JB |
10935 | func_key_syms = Qnil; |
10936 | staticpro (&func_key_syms); | |
10937 | ||
a24dc617 RS |
10938 | drag_n_drop_syms = Qnil; |
10939 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 10940 | |
cd21b839 JB |
10941 | unread_switch_frame = Qnil; |
10942 | staticpro (&unread_switch_frame); | |
10943 | ||
fe412364 EN |
10944 | internal_last_event_frame = Qnil; |
10945 | staticpro (&internal_last_event_frame); | |
10946 | ||
10947 | read_key_sequence_cmd = Qnil; | |
10948 | staticpro (&read_key_sequence_cmd); | |
10949 | ||
759860a6 RS |
10950 | menu_bar_one_keymap_changed_items = Qnil; |
10951 | staticpro (&menu_bar_one_keymap_changed_items); | |
10952 | ||
a1706c30 | 10953 | defsubr (&Sevent_convert_list); |
284f4730 | 10954 | defsubr (&Sread_key_sequence); |
e39da3d7 | 10955 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 10956 | defsubr (&Srecursive_edit); |
2eb6bfbe | 10957 | #ifdef HAVE_MOUSE |
284f4730 | 10958 | defsubr (&Strack_mouse); |
2eb6bfbe | 10959 | #endif |
284f4730 JB |
10960 | defsubr (&Sinput_pending_p); |
10961 | defsubr (&Scommand_execute); | |
10962 | defsubr (&Srecent_keys); | |
10963 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 10964 | defsubr (&Sthis_command_keys_vector); |
6321824f | 10965 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 10966 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 10967 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 10968 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
10969 | defsubr (&Ssuspend_emacs); |
10970 | defsubr (&Sabort_recursive_edit); | |
10971 | defsubr (&Sexit_recursive_edit); | |
10972 | defsubr (&Srecursion_depth); | |
10973 | defsubr (&Stop_level); | |
10974 | defsubr (&Sdiscard_input); | |
10975 | defsubr (&Sopen_dribble_file); | |
10976 | defsubr (&Sset_input_mode); | |
80645119 | 10977 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
10978 | defsubr (&Sexecute_extended_command); |
10979 | ||
284f4730 | 10980 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 10981 | doc: /* Last input event that was part of a command. */); |
86e5706b | 10982 | |
186cf719 | 10983 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 10984 | doc: /* Last input event that was part of a command. */); |
284f4730 | 10985 | |
7d6de002 | 10986 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
10987 | doc: /* Last input event in a command, except for mouse menu events. |
10988 | Mouse menus give back keys that don't look like mouse events; | |
10989 | this variable holds the actual mouse event that led to the menu, | |
10990 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 10991 | |
284f4730 | 10992 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 10993 | doc: /* Last input event. */); |
86e5706b | 10994 | |
186cf719 | 10995 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 10996 | doc: /* Last input event. */); |
284f4730 | 10997 | |
24597608 | 10998 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
10999 | doc: /* List of events to be read as the command input. |
11000 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 11001 | Vunread_command_events = Qnil; |
284f4730 | 11002 | |
86e5706b | 11003 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 11004 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 11005 | |
7d18f9ae | 11006 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
11007 | doc: /* List of events to be processed as input by input methods. |
11008 | These events are processed after `unread-command-events', but | |
11009 | before actual keyboard input. */); | |
7d18f9ae RS |
11010 | Vunread_post_input_method_events = Qnil; |
11011 | ||
11012 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
11013 | doc: /* List of events to be processed as input by input methods. |
11014 | These events are processed after `unread-command-events', but | |
11015 | before actual keyboard input. */); | |
7d18f9ae RS |
11016 | Vunread_input_method_events = Qnil; |
11017 | ||
284f4730 | 11018 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
11019 | doc: /* Meta-prefix character code. |
11020 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 11021 | XSETINT (meta_prefix_char, 033); |
284f4730 | 11022 | |
6c7178b9 | 11023 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
11024 | doc: /* The last command executed. |
11025 | Normally a symbol with a function definition, but can be whatever was found | |
11026 | in the keymap, or whatever the variable `this-command' was set to by that | |
11027 | command. | |
11028 | ||
11029 | The value `mode-exit' is special; it means that the previous command | |
11030 | read an event that told it to exit, and it did so and unread that event. | |
11031 | In other words, the present command is the event that made the previous | |
11032 | command exit. | |
11033 | ||
11034 | The value `kill-region' is special; it means that the previous command | |
11035 | was a kill command. */); | |
284f4730 | 11036 | |
75045dcb | 11037 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 11038 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 11039 | |
d5eecefb | 11040 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
11041 | doc: /* The command now being executed. |
11042 | The command can set this variable; whatever is put here | |
11043 | will be in `last-command' during the following command. */); | |
d5eecefb | 11044 | Vthis_command = Qnil; |
284f4730 | 11045 | |
8b9940e6 | 11046 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
11047 | doc: /* The command bound to the current key sequence before remapping. |
11048 | It equals `this-command' if the original command was not remapped through | |
11049 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 11050 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
11051 | Vthis_original_command = Qnil; |
11052 | ||
284f4730 | 11053 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
11054 | doc: /* *Number of input events between auto-saves. |
11055 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
11056 | auto_save_interval = 300; |
11057 | ||
11058 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
11059 | doc: /* *Number of seconds idle time before auto-save. |
11060 | Zero or nil means disable auto-saving due to idleness. | |
11061 | After auto-saving due to this many seconds of idle time, | |
11062 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 11063 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 11064 | |
39aab679 | 11065 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
11066 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
11067 | The value may be integer or floating point. */); | |
39aab679 | 11068 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
11069 | |
11070 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
11071 | doc: /* *Interval between polling for input during Lisp execution. |
11072 | The reason for polling is to make C-g work to stop a running program. | |
11073 | Polling is needed only when using X windows and SIGIO does not work. | |
11074 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 11075 | polling_period = 2; |
df0f2ba1 | 11076 | |
564dc952 | 11077 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
11078 | doc: /* *Maximum time between mouse clicks to make a double-click. |
11079 | Measured in milliseconds. nil means disable double-click recognition; | |
11080 | t means double-clicks have no time limit and are detected | |
11081 | by position only. */); | |
aab06933 | 11082 | Vdouble_click_time = make_number (500); |
fbcd35bd | 11083 | |
222d557c | 11084 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
11085 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
11086 | On window-system frames, value is the number of pixels the mouse may have | |
11087 | moved horizontally or vertically between two clicks to make a double-click. | |
11088 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
11089 | instead of pixels. |
11090 | ||
11091 | This variable is also the threshold for motion of the mouse | |
11092 | to count as a drag. */); | |
222d557c | 11093 | double_click_fuzz = 3; |
c60ee5e7 | 11094 | |
03361bcc | 11095 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 11096 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
11097 | inhibit_local_menu_bar_menus = 0; |
11098 | ||
284f4730 | 11099 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
11100 | doc: /* Number of complete key sequences read as input so far. |
11101 | This includes key sequences read from keyboard macros. | |
11102 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
11103 | num_input_keys = 0; |
11104 | ||
c43b1734 | 11105 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
11106 | doc: /* Number of input events read from the keyboard so far. |
11107 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 11108 | num_nonmacro_input_events = 0; |
fa90970d | 11109 | |
4c52b668 | 11110 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
11111 | doc: /* The frame in which the most recently read event occurred. |
11112 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
11113 | Vlast_event_frame = Qnil; |
11114 | ||
fa90970d RS |
11115 | /* This variable is set up in sysdep.c. */ |
11116 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 11117 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 11118 | |
7e85b935 | 11119 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
11120 | doc: /* Character to recognize as meaning Help. |
11121 | When it is read, do `(eval help-form)', and display result if it's a string. | |
11122 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 11123 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 11124 | |
ecb7cb34 | 11125 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
11126 | doc: /* List of input events to recognize as meaning Help. |
11127 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
11128 | Vhelp_event_list = Qnil; |
11129 | ||
284f4730 | 11130 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
11131 | doc: /* Form to execute when character `help-char' is read. |
11132 | If the form returns a string, that string is displayed. | |
11133 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
11134 | Vhelp_form = Qnil; |
11135 | ||
7e85b935 | 11136 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
11137 | doc: /* Command to run when `help-char' character follows a prefix key. |
11138 | This command is used only when there is no actual binding | |
11139 | for that character after that prefix key. */); | |
7e85b935 RS |
11140 | Vprefix_help_command = Qnil; |
11141 | ||
284f4730 | 11142 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
11143 | doc: /* Form to evaluate when Emacs starts up. |
11144 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
11145 | Vtop_level = Qnil; |
11146 | ||
11147 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 PJ |
11148 | doc: /* Translate table for keyboard input, or nil. |
11149 | Each character is looked up in this string and the contents used instead. | |
11150 | The value may be a string, a vector, or a char-table. | |
11151 | If it is a string or vector of length N, | |
11152 | character codes N and up are untranslated. | |
a0acc6c7 DL |
11153 | In a vector or a char-table, an element which is nil means "no translation". |
11154 | ||
11155 | This is applied to the characters supplied to input methods, not their | |
11156 | output. See also `translation-table-for-input'. */); | |
284f4730 JB |
11157 | Vkeyboard_translate_table = Qnil; |
11158 | ||
8026024c | 11159 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
11160 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
11161 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
11162 | cannot_suspend = 0; |
11163 | ||
284f4730 | 11164 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
11165 | doc: /* Non-nil means prompt with menus when appropriate. |
11166 | This is done when reading from a keymap that has a prompt string, | |
11167 | for elements that have prompt strings. | |
11168 | The menu is displayed on the screen | |
11169 | if X menus were enabled at configuration | |
11170 | time and the previous event was a mouse click prefix key. | |
11171 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
11172 | menu_prompting = 1; |
11173 | ||
11174 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
11175 | doc: /* Character to see next line of menu prompt. |
11176 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 11177 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
11178 | |
11179 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
11180 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
11181 | Emacs applies the modifiers of the character stored here to each keyboard | |
11182 | character it reads. For example, after evaluating the expression | |
11183 | (setq extra-keyboard-modifiers ?\\C-x) | |
11184 | all input characters will have the control modifier applied to them. | |
11185 | ||
11186 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
11187 | not count as a control character; rather, it counts as a character | |
11188 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
11189 | cancels any modification. */); | |
9fa4395d | 11190 | extra_keyboard_modifiers = 0; |
86e5706b RS |
11191 | |
11192 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
11193 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
11194 | The command loop sets this to nil before each command, | |
11195 | and tests the value when the command returns. | |
11196 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
11197 | Vdeactivate_mark = Qnil; |
11198 | ||
b0f2a7bf | 11199 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 11200 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
11201 | Vcommand_hook_internal = Qnil; |
11202 | ||
86e5706b | 11203 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
11204 | doc: /* Normal hook run before each command is executed. |
11205 | If an unhandled error happens in running this hook, | |
11206 | the hook value is set to nil, since otherwise the error | |
11207 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
11208 | Vpre_command_hook = Qnil; |
11209 | ||
11210 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
11211 | doc: /* Normal hook run after each command is executed. |
11212 | If an unhandled error happens in running this hook, | |
11213 | the hook value is set to nil, since otherwise the error | |
11214 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 11215 | Vpost_command_hook = Qnil; |
48e416d4 | 11216 | |
59aadc81 | 11217 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
4707d2d0 | 11218 | doc: /* Normal hook run after each command is executed, if idle. |
cf9b6656 | 11219 | Errors running the hook are caught and ignored. */); |
59aadc81 RS |
11220 | Vpost_command_idle_hook = Qnil; |
11221 | ||
11222 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
4707d2d0 PJ |
11223 | doc: /* Delay time before running `post-command-idle-hook'. |
11224 | This is measured in microseconds. */); | |
59aadc81 RS |
11225 | post_command_idle_delay = 100000; |
11226 | ||
cf24f894 RS |
11227 | #if 0 |
11228 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 11229 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
11230 | #endif |
11231 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
11232 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); | |
cdb9d665 | 11233 | |
48e416d4 | 11234 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 11235 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 11236 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 11237 | |
9f9c0e27 | 11238 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
11239 | doc: /* List of menu bar items to move to the end of the menu bar. |
11240 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 11241 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 11242 | |
217258d5 KH |
11243 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
11244 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
11245 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
11246 | If this variable is non-nil, it is used as a keymap instead of the | |
11247 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
11248 | This variable is intended to let commands such as `universal-argument' | |
11249 | set up a different keymap for reading the next command. */); | |
217258d5 | 11250 | |
9dd3131c | 11251 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 PJ |
11252 | doc: /* Keymap that overrides all other local keymaps. |
11253 | If this variable is non-nil, it is used as a keymap instead of the | |
11254 | buffer's local map, and the minor mode keymaps and text property keymaps. */); | |
9dd3131c RS |
11255 | Voverriding_local_map = Qnil; |
11256 | ||
d0a49716 | 11257 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11258 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11259 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11260 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11261 | Voverriding_local_map_menu_flag = Qnil; |
11262 | ||
7f07d5ca | 11263 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 11264 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
11265 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
11266 | ||
71edead1 | 11267 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 11268 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11269 | |
7c97ffdc | 11270 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11271 | doc: /* Alist of system-specific X windows key symbols. |
11272 | Each element should have the form (N . SYMBOL) where N is the | |
11273 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
11274 | and SYMBOL is its name. */); | |
8a792f3a RS |
11275 | |
11276 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
11277 | doc: /* List of deferred actions to be performed at a later time. |
11278 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
11279 | Vdeferred_action_list = Qnil; |
11280 | ||
11281 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
11282 | doc: /* Function to call to handle deferred actions, after each command. |
11283 | This function is called with no arguments after each command | |
11284 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 11285 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
11286 | |
11287 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
11288 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
11289 | The value can be a length of time to show the message for. | |
11290 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 11291 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 11292 | |
c04cbc3b | 11293 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 11294 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 11295 | Vtimer_list = Qnil; |
d9d4c147 KH |
11296 | |
11297 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 11298 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 11299 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
11300 | |
11301 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
11302 | doc: /* If non-nil, the function that implements the current input method. |
11303 | It's called with one argument, a printing character that was just read. | |
11304 | \(That means a character with code 040...0176.) | |
11305 | Typically this function uses `read-event' to read additional events. | |
11306 | When it does so, it should first bind `input-method-function' to nil | |
11307 | so it will not be called recursively. | |
11308 | ||
11309 | The function should return a list of zero or more events | |
11310 | to be used as input. If it wants to put back some events | |
11311 | to be reconsidered, separately, by the input method, | |
11312 | it can add them to the beginning of `unread-command-events'. | |
11313 | ||
11314 | The input method function can find in `input-method-previous-method' | |
11315 | the previous echo area message. | |
11316 | ||
11317 | The input method function should refer to the variables | |
11318 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
11319 | for guidance on what to do. */); | |
7d18f9ae | 11320 | Vinput_method_function = Qnil; |
d5eecefb RS |
11321 | |
11322 | DEFVAR_LISP ("input-method-previous-message", | |
11323 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
11324 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
11325 | This variable exists because `read-event' clears the echo area | |
11326 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 11327 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
11328 | |
11329 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
11330 | doc: /* If non-nil, the function that implements the display of help. |
11331 | It's called with one argument, the help string to display. */); | |
7ee32cda | 11332 | Vshow_help_function = Qnil; |
adf5cb9c KH |
11333 | |
11334 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
11335 | doc: /* If non-nil, suppress point adjustment after executing a command. |
11336 | ||
11337 | After a command is executed, if point is moved into a region that has | |
11338 | special properties (e.g. composition, display), we adjust point to | |
11339 | the boundary of the region. But, several special commands sets this | |
11340 | variable to non-nil, then we suppress the point adjustment. | |
11341 | ||
11342 | This variable is set to nil before reading a command, and is checked | |
11343 | just after executing the command. */); | |
adf5cb9c KH |
11344 | Vdisable_point_adjustment = Qnil; |
11345 | ||
11346 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11347 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11348 | doc: /* *If non-nil, always suppress point adjustment. |
11349 | ||
11350 | The default value is nil, in which case, point adjustment are | |
11351 | suppressed only after special commands that set | |
11352 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11353 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11354 | |
a1d34b1e | 11355 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
11356 | doc: /* Non-nil means updating menu bindings is allowed. |
11357 | A value of nil means menu bindings should not be updated. | |
11358 | Used during Emacs' startup. */); | |
3626fb1a | 11359 | update_menu_bindings = 1; |
00392ce6 MB |
11360 | |
11361 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
11362 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11363 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11364 | Vminibuffer_message_timeout = make_number (2); |
284f4730 JB |
11365 | } |
11366 | ||
dfcf069d | 11367 | void |
284f4730 JB |
11368 | keys_of_keyboard () |
11369 | { | |
11370 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11371 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11372 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11373 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11374 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11375 | |
11376 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11377 | "handle-delete-frame"); | |
11378 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
11379 | "ignore-event"); | |
11380 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
11381 | "ignore-event"); | |
a4e19f6e SM |
11382 | /* Handling it at such a low-level causes read_key_sequence to get |
11383 | * confused because it doesn't realize that the current_buffer was | |
11384 | * changed by read_char. | |
11385 | * | |
11386 | * initial_define_lispy_key (Vspecial_event_map, "select-window", | |
11387 | * "handle-select-window"); */ | |
4ebc27a5 JD |
11388 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11389 | "handle-save-session"); | |
284f4730 | 11390 | } |
1269a761 SM |
11391 | |
11392 | /* Mark the pointers in the kboard objects. | |
11393 | Called by the Fgarbage_collector. */ | |
11394 | void | |
11395 | mark_kboards () | |
11396 | { | |
11397 | KBOARD *kb; | |
11398 | Lisp_Object *p; | |
11399 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
11400 | { | |
11401 | if (kb->kbd_macro_buffer) | |
11402 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
11403 | mark_object (*p); |
11404 | mark_object (kb->Voverriding_terminal_local_map); | |
11405 | mark_object (kb->Vlast_command); | |
11406 | mark_object (kb->Vreal_last_command); | |
11407 | mark_object (kb->Vprefix_arg); | |
11408 | mark_object (kb->Vlast_prefix_arg); | |
11409 | mark_object (kb->kbd_queue); | |
11410 | mark_object (kb->defining_kbd_macro); | |
11411 | mark_object (kb->Vlast_kbd_macro); | |
11412 | mark_object (kb->Vsystem_key_alist); | |
11413 | mark_object (kb->system_key_syms); | |
11414 | mark_object (kb->Vdefault_minibuffer_frame); | |
11415 | mark_object (kb->echo_string); | |
1269a761 SM |
11416 | } |
11417 | { | |
11418 | struct input_event *event; | |
11419 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
11420 | { | |
11421 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
11422 | event = kbd_buffer; | |
3ebb8729 SM |
11423 | mark_object (event->x); |
11424 | mark_object (event->y); | |
11425 | mark_object (event->frame_or_window); | |
11426 | mark_object (event->arg); | |
1269a761 SM |
11427 | } |
11428 | } | |
11429 | } |