Commit | Line | Data |
---|---|---|
284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
0b5538bd TTN |
2 | Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995, |
3 | 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, | |
4 | 2005 Free Software Foundation, Inc. | |
284f4730 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 10 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
284f4730 | 22 | |
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <signal.h> |
284f4730 | 25 | #include <stdio.h> |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
28 | #include "lisp.h" | |
29 | #include "termhooks.h" | |
30 | #include "macros.h" | |
02639609 | 31 | #include "keyboard.h" |
ff11dfa1 | 32 | #include "frame.h" |
284f4730 JB |
33 | #include "window.h" |
34 | #include "commands.h" | |
35 | #include "buffer.h" | |
37cd9f30 | 36 | #include "charset.h" |
284f4730 | 37 | #include "disptab.h" |
f4255cd1 | 38 | #include "dispextern.h" |
e39da3d7 | 39 | #include "syntax.h" |
497ba7a1 | 40 | #include "intervals.h" |
bdb7aa47 | 41 | #include "keymap.h" |
9ac0d9e0 | 42 | #include "blockinput.h" |
e8886a1d | 43 | #include "puresize.h" |
8a9f5d3c GM |
44 | #include "systime.h" |
45 | #include "atimer.h" | |
284f4730 JB |
46 | #include <setjmp.h> |
47 | #include <errno.h> | |
48 | ||
aa477689 JD |
49 | #ifdef HAVE_GTK_AND_PTHREAD |
50 | #include <pthread.h> | |
51 | #endif | |
80e4aa30 RS |
52 | #ifdef MSDOS |
53 | #include "msdos.h" | |
54 | #include <time.h> | |
55 | #else /* not MSDOS */ | |
284f4730 JB |
56 | #ifndef VMS |
57 | #include <sys/ioctl.h> | |
284f4730 | 58 | #endif |
80e4aa30 | 59 | #endif /* not MSDOS */ |
284f4730 | 60 | |
52baf19e | 61 | #include "syssignal.h" |
6ef5b54f | 62 | #include "systty.h" |
52baf19e | 63 | |
03cee6ae GM |
64 | #include <sys/types.h> |
65 | #ifdef HAVE_UNISTD_H | |
66 | #include <unistd.h> | |
67 | #endif | |
68 | ||
e31d908f DN |
69 | #ifdef HAVE_FCNTL_H |
70 | #include <fcntl.h> | |
71 | #endif | |
72 | ||
c5e3b6c5 RS |
73 | /* This is to get the definitions of the XK_ symbols. */ |
74 | #ifdef HAVE_X_WINDOWS | |
75 | #include "xterm.h" | |
76 | #endif | |
77 | ||
e98a93eb GV |
78 | #ifdef HAVE_NTGUI |
79 | #include "w32term.h" | |
80 | #endif /* HAVE_NTGUI */ | |
81 | ||
e0f712ba | 82 | #ifdef MAC_OS |
1a578e9b AC |
83 | #include "macterm.h" |
84 | #endif | |
85 | ||
02639609 | 86 | #ifndef USE_CRT_DLL |
52baf19e | 87 | extern int errno; |
02639609 | 88 | #endif |
52baf19e | 89 | |
9ac0d9e0 JB |
90 | /* Variables for blockinput.h: */ |
91 | ||
92 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 93 | int interrupt_input_blocked; |
9ac0d9e0 JB |
94 | |
95 | /* Nonzero means an input interrupt has arrived | |
96 | during the current critical section. */ | |
63927c41 | 97 | int interrupt_input_pending; |
9ac0d9e0 JB |
98 | |
99 | ||
437f6112 RS |
100 | /* File descriptor to use for input. */ |
101 | extern int input_fd; | |
284f4730 | 102 | |
e98a93eb | 103 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 104 | /* Make all keyboard buffers much bigger when using X windows. */ |
e0f712ba AC |
105 | #ifdef MAC_OS8 |
106 | /* But not too big (local data > 32K error) if on Mac OS Classic. */ | |
f019cded RS |
107 | #define KBD_BUFFER_SIZE 512 |
108 | #else | |
284f4730 | 109 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 110 | #endif |
284f4730 | 111 | #else /* No X-windows, character input */ |
de11c1ea | 112 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
113 | #endif /* No X-windows */ |
114 | ||
222d557c GM |
115 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
116 | ||
284f4730 JB |
117 | /* Following definition copied from eval.c */ |
118 | ||
119 | struct backtrace | |
120 | { | |
121 | struct backtrace *next; | |
122 | Lisp_Object *function; | |
123 | Lisp_Object *args; /* Points to vector of args. */ | |
124 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
125 | args points to slot holding list of | |
126 | unevalled args */ | |
127 | char evalargs; | |
080e18b1 KS |
128 | /* Nonzero means call value of debugger when done with this operation. */ |
129 | char debug_on_exit; | |
284f4730 JB |
130 | }; |
131 | ||
c5fdd383 KH |
132 | #ifdef MULTI_KBOARD |
133 | KBOARD *initial_kboard; | |
134 | KBOARD *current_kboard; | |
135 | KBOARD *all_kboards; | |
1e8bd3da | 136 | int single_kboard; |
6c6083a9 | 137 | #else |
c5fdd383 | 138 | KBOARD the_only_kboard; |
6c6083a9 | 139 | #endif |
612b78ef | 140 | |
284f4730 | 141 | /* Non-nil disable property on a command means |
971e4c98 LT |
142 | do not execute it; call disabled-command-function's value instead. */ |
143 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 JB |
144 | |
145 | #define NUM_RECENT_KEYS (100) | |
146 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
147 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 148 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 149 | |
6569cc8d JB |
150 | /* Vector holding the key sequence that invoked the current command. |
151 | It is reused for each command, and it may be longer than the current | |
152 | sequence; this_command_key_count indicates how many elements | |
153 | actually mean something. | |
154 | It's easier to staticpro a single Lisp_Object than an array. */ | |
155 | Lisp_Object this_command_keys; | |
156 | int this_command_key_count; | |
284f4730 | 157 | |
63020c46 RS |
158 | /* 1 after calling Freset_this_command_lengths. |
159 | Usually it is 0. */ | |
160 | int this_command_key_count_reset; | |
161 | ||
7d18f9ae RS |
162 | /* This vector is used as a buffer to record the events that were actually read |
163 | by read_key_sequence. */ | |
164 | Lisp_Object raw_keybuf; | |
165 | int raw_keybuf_count; | |
166 | ||
167 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 168 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
7d18f9ae RS |
169 | { \ |
170 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
171 | Lisp_Object new; \ | |
172 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
173 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
174 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
175 | raw_keybuf = new; \ | |
176 | } | |
177 | ||
6321824f RS |
178 | /* Number of elements of this_command_keys |
179 | that precede this key sequence. */ | |
180 | int this_single_command_key_start; | |
181 | ||
71918b75 RS |
182 | /* Record values of this_command_key_count and echo_length () |
183 | before this command was read. */ | |
184 | static int before_command_key_count; | |
185 | static int before_command_echo_length; | |
71918b75 | 186 | |
284f4730 JB |
187 | extern int minbuf_level; |
188 | ||
a59b172a RS |
189 | extern int message_enable_multibyte; |
190 | ||
284f4730 JB |
191 | extern struct backtrace *backtrace_list; |
192 | ||
7ee32cda GM |
193 | /* If non-nil, the function that implements the display of help. |
194 | It's called with one argument, the help string to display. */ | |
195 | ||
196 | Lisp_Object Vshow_help_function; | |
197 | ||
f0c1cc56 GM |
198 | /* If a string, the message displayed before displaying a help-echo |
199 | in the echo area. */ | |
200 | ||
201 | Lisp_Object Vpre_help_message; | |
202 | ||
284f4730 | 203 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 204 | |
284f4730 JB |
205 | static int menu_prompting; |
206 | ||
207 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 208 | |
284f4730 JB |
209 | static Lisp_Object menu_prompt_more_char; |
210 | ||
211 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 212 | |
284f4730 JB |
213 | static jmp_buf getcjmp; |
214 | ||
215 | /* True while doing kbd input. */ | |
216 | int waiting_for_input; | |
217 | ||
218 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 219 | |
c843d6c6 | 220 | int echoing; |
284f4730 | 221 | |
985f9f66 GM |
222 | /* Non-null means we can start echoing at the next input pause even |
223 | though there is something in the echo area. */ | |
224 | ||
225 | static struct kboard *ok_to_echo_at_next_pause; | |
226 | ||
59a84f8e GM |
227 | /* The kboard last echoing, or null for none. Reset to 0 in |
228 | cancel_echoing. If non-null, and a current echo area message | |
229 | exists, and echo_message_buffer is eq to the current message | |
230 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 231 | |
f49aedfd | 232 | struct kboard *echo_kboard; |
1fc93d49 | 233 | |
59a84f8e GM |
234 | /* The buffer used for echoing. Set in echo_now, reset in |
235 | cancel_echoing. */ | |
236 | ||
c843d6c6 | 237 | Lisp_Object echo_message_buffer; |
59a84f8e | 238 | |
03361bcc RS |
239 | /* Nonzero means disregard local maps for the menu bar. */ |
240 | static int inhibit_local_menu_bar_menus; | |
241 | ||
80e4aa30 | 242 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
243 | int immediate_quit; |
244 | ||
fa90970d RS |
245 | /* The user's ERASE setting. */ |
246 | Lisp_Object Vtty_erase_char; | |
247 | ||
284f4730 | 248 | /* Character to recognize as the help char. */ |
7e85b935 | 249 | Lisp_Object Vhelp_char; |
284f4730 | 250 | |
ecb7cb34 KH |
251 | /* List of other event types to recognize as meaning "help". */ |
252 | Lisp_Object Vhelp_event_list; | |
253 | ||
284f4730 JB |
254 | /* Form to execute when help char is typed. */ |
255 | Lisp_Object Vhelp_form; | |
256 | ||
7e85b935 RS |
257 | /* Command to run when the help character follows a prefix key. */ |
258 | Lisp_Object Vprefix_help_command; | |
259 | ||
9f9c0e27 RS |
260 | /* List of items that should move to the end of the menu bar. */ |
261 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 262 | |
6526ab49 RS |
263 | /* Non-nil means show the equivalent key-binding for |
264 | any M-x command that has one. | |
265 | The value can be a length of time to show the message for. | |
266 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
267 | Lisp_Object Vsuggest_key_bindings; | |
268 | ||
00392ce6 MB |
269 | /* How long to display an echo-area message when the minibuffer is active. |
270 | If the value is not a number, such messages don't time out. */ | |
271 | Lisp_Object Vminibuffer_message_timeout; | |
272 | ||
284f4730 JB |
273 | /* Character that causes a quit. Normally C-g. |
274 | ||
275 | If we are running on an ordinary terminal, this must be an ordinary | |
276 | ASCII char, since we want to make it our interrupt character. | |
277 | ||
278 | If we are not running on an ordinary terminal, it still needs to be | |
279 | an ordinary ASCII char. This character needs to be recognized in | |
280 | the input interrupt handler. At this point, the keystroke is | |
281 | represented as a struct input_event, while the desired quit | |
282 | character is specified as a lispy event. The mapping from struct | |
283 | input_events to lispy events cannot run in an interrupt handler, | |
284 | and the reverse mapping is difficult for anything but ASCII | |
285 | keystrokes. | |
286 | ||
287 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
288 | ASCII character. */ | |
289 | int quit_char; | |
290 | ||
291 | extern Lisp_Object current_global_map; | |
292 | extern int minibuf_level; | |
293 | ||
9dd3131c RS |
294 | /* If non-nil, this is a map that overrides all other local maps. */ |
295 | Lisp_Object Voverriding_local_map; | |
296 | ||
d0a49716 RS |
297 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
298 | Lisp_Object Voverriding_local_map_menu_flag; | |
299 | ||
7f07d5ca RS |
300 | /* Keymap that defines special misc events that should |
301 | be processed immediately at a low level. */ | |
302 | Lisp_Object Vspecial_event_map; | |
303 | ||
284f4730 JB |
304 | /* Current depth in recursive edits. */ |
305 | int command_loop_level; | |
306 | ||
307 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 308 | EMACS_INT num_input_keys; |
284f4730 JB |
309 | |
310 | /* Last input character read as a command. */ | |
311 | Lisp_Object last_command_char; | |
312 | ||
7d6de002 RS |
313 | /* Last input character read as a command, not counting menus |
314 | reached by the mouse. */ | |
315 | Lisp_Object last_nonmenu_event; | |
316 | ||
284f4730 JB |
317 | /* Last input character read for any purpose. */ |
318 | Lisp_Object last_input_char; | |
319 | ||
dbc4e1c1 | 320 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 321 | Lisp_Object Vunread_command_events; |
284f4730 | 322 | |
7d18f9ae RS |
323 | /* If not Qnil, a list of objects to be read as subsequent command input |
324 | including input method processing. */ | |
325 | Lisp_Object Vunread_input_method_events; | |
326 | ||
327 | /* If not Qnil, a list of objects to be read as subsequent command input | |
328 | but NOT including input method processing. */ | |
329 | Lisp_Object Vunread_post_input_method_events; | |
330 | ||
86e5706b | 331 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 332 | EMACS_INT unread_command_char; |
86e5706b | 333 | |
cd21b839 JB |
334 | /* If not Qnil, this is a switch-frame event which we decided to put |
335 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 336 | next command input, after any unread_command_events. |
8f805655 JB |
337 | |
338 | read_key_sequence uses this to delay switch-frame events until the | |
339 | end of the key sequence; Fread_char uses it to put off switch-frame | |
340 | events until a non-ASCII event is acceptable as input. */ | |
341 | Lisp_Object unread_switch_frame; | |
cd21b839 | 342 | |
9fa4395d | 343 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 344 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 345 | |
284f4730 JB |
346 | /* Char to use as prefix when a meta character is typed in. |
347 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
348 | ||
349 | Lisp_Object meta_prefix_char; | |
350 | ||
351 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
352 | static int last_non_minibuf_size; | |
353 | ||
06ef7355 | 354 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
355 | static Lisp_Object Vauto_save_timeout; |
356 | ||
357 | /* Total number of times read_char has returned. */ | |
4abfba1f | 358 | int num_input_events; |
284f4730 | 359 | |
51172b6d | 360 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 361 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 362 | |
284f4730 JB |
363 | /* Auto-save automatically when this many characters have been typed |
364 | since the last time. */ | |
365 | ||
31ade731 | 366 | static EMACS_INT auto_save_interval; |
284f4730 | 367 | |
c43b1734 | 368 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
369 | |
370 | int last_auto_save; | |
371 | ||
284f4730 | 372 | /* The command being executed by the command loop. |
6c7178b9 KH |
373 | Commands may set this, and the value set will be copied into |
374 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
375 | Lisp_Object Vthis_command; |
376 | ||
377 | /* This is like Vthis_command, except that commands never set it. */ | |
378 | Lisp_Object real_this_command; | |
284f4730 | 379 | |
8b9940e6 KS |
380 | /* If the lookup of the command returns a binding, the original |
381 | command is stored in this-original-command. It is nil otherwise. */ | |
382 | Lisp_Object Vthis_original_command; | |
383 | ||
b453f72e KH |
384 | /* The value of point when the last command was executed. */ |
385 | int last_point_position; | |
386 | ||
047688cb RS |
387 | /* The buffer that was current when the last command was started. */ |
388 | Lisp_Object last_point_position_buffer; | |
389 | ||
4c52b668 KH |
390 | /* The frame in which the last input event occurred, or Qmacro if the |
391 | last event came from a macro. We use this to determine when to | |
392 | generate switch-frame events. This may be cleared by functions | |
393 | like Fselect_frame, to make sure that a switch-frame event is | |
394 | generated by the next character. */ | |
395 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
396 | |
397 | /* A user-visible version of the above, intended to allow users to | |
398 | figure out where the last event came from, if the event doesn't | |
399 | carry that information itself (i.e. if it was a character). */ | |
400 | Lisp_Object Vlast_event_frame; | |
401 | ||
1113d9db JB |
402 | /* The timestamp of the last input event we received from the X server. |
403 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
404 | unsigned long last_event_timestamp; |
405 | ||
406 | Lisp_Object Qself_insert_command; | |
407 | Lisp_Object Qforward_char; | |
408 | Lisp_Object Qbackward_char; | |
e58aa385 | 409 | Lisp_Object Qundefined; |
d925fb39 | 410 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
411 | |
412 | /* read_key_sequence stores here the command definition of the | |
413 | key sequence that it reads. */ | |
414 | Lisp_Object read_key_sequence_cmd; | |
415 | ||
39aab679 DL |
416 | /* Echo unfinished commands after this many seconds of pause. */ |
417 | Lisp_Object Vecho_keystrokes; | |
418 | ||
284f4730 JB |
419 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
420 | Lisp_Object Vtop_level; | |
421 | ||
a0acc6c7 | 422 | /* User-supplied table to translate input characters. */ |
284f4730 JB |
423 | Lisp_Object Vkeyboard_translate_table; |
424 | ||
425 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
426 | extern Lisp_Object Vfunction_key_map; | |
427 | ||
e0301c07 RS |
428 | /* Another keymap that maps key sequences into key sequences. |
429 | This one takes precedence over ordinary definitions. */ | |
430 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 431 | |
7d18f9ae RS |
432 | /* If non-nil, this implements the current input method. */ |
433 | Lisp_Object Vinput_method_function; | |
434 | Lisp_Object Qinput_method_function; | |
435 | ||
d5eecefb RS |
436 | /* When we call Vinput_method_function, |
437 | this holds the echo area message that was just erased. */ | |
438 | Lisp_Object Vinput_method_previous_message; | |
439 | ||
86e5706b RS |
440 | /* Non-nil means deactivate the mark at end of this command. */ |
441 | Lisp_Object Vdeactivate_mark; | |
442 | ||
48e416d4 RS |
443 | /* Menu bar specified in Lucid Emacs fashion. */ |
444 | ||
445 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
446 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
447 | ||
cf24f894 | 448 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 449 | |
86e5706b | 450 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
451 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
452 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 453 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 454 | |
8a792f3a RS |
455 | /* List of deferred actions to be performed at a later time. |
456 | The precise format isn't relevant here; we just check whether it is nil. */ | |
457 | Lisp_Object Vdeferred_action_list; | |
458 | ||
459 | /* Function to call to handle deferred actions, when there are any. */ | |
460 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 461 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 462 | |
d5eecefb RS |
463 | Lisp_Object Qinput_method_exit_on_first_char; |
464 | Lisp_Object Qinput_method_use_echo_area; | |
465 | ||
284f4730 JB |
466 | /* File in which we write all commands we read. */ |
467 | FILE *dribble; | |
468 | ||
469 | /* Nonzero if input is available. */ | |
470 | int input_pending; | |
471 | ||
b04904fb RS |
472 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
473 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
474 | ||
284f4730 JB |
475 | int meta_key; |
476 | ||
3626fb1a GM |
477 | /* Non-zero means force key bindings update in parse_menu_item. */ |
478 | ||
479 | int update_menu_bindings; | |
480 | ||
284f4730 JB |
481 | extern char *pending_malloc_warning; |
482 | ||
beecf6a1 | 483 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 484 | |
beecf6a1 KH |
485 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
486 | ||
beecf6a1 KH |
487 | /* Pointer to next available character in kbd_buffer. |
488 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 489 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
490 | next available char is in kbd_buffer[0]. */ |
491 | static struct input_event *kbd_fetch_ptr; | |
492 | ||
493 | /* Pointer to next place to store character in kbd_buffer. This | |
494 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
495 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 496 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
497 | |
498 | /* The above pair of variables forms a "queue empty" flag. When we | |
499 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
500 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
501 | there is input available iff the two pointers are not equal. | |
502 | ||
503 | Why not just have a flag set and cleared by the enqueuing and | |
504 | dequeuing functions? Such a flag could be screwed up by interrupts | |
505 | at inopportune times. */ | |
506 | ||
f3253854 | 507 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
508 | mouse moves, and motion events will appear in the input stream. |
509 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 510 | Lisp_Object do_mouse_tracking; |
284f4730 | 511 | |
284f4730 JB |
512 | /* Symbols to head events. */ |
513 | Lisp_Object Qmouse_movement; | |
3c370943 | 514 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 515 | Lisp_Object Qswitch_frame; |
bbdc2092 | 516 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
517 | Lisp_Object Qiconify_frame; |
518 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 519 | Lisp_Object Qselect_window; |
7ee32cda | 520 | Lisp_Object Qhelp_echo; |
cd21b839 | 521 | |
c22237f7 KS |
522 | #ifdef HAVE_MOUSE |
523 | Lisp_Object Qmouse_fixup_help_message; | |
524 | #endif | |
525 | ||
284f4730 JB |
526 | /* Symbols to denote kinds of events. */ |
527 | Lisp_Object Qfunction_key; | |
528 | Lisp_Object Qmouse_click; | |
c16dab62 | 529 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 | 530 | Lisp_Object Qlanguage_change; |
07de30b9 | 531 | #endif |
a24dc617 | 532 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
533 | Lisp_Object Qsave_session; |
534 | ||
284f4730 | 535 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
536 | |
537 | /* Properties of event headers. */ | |
538 | Lisp_Object Qevent_kind; | |
88cb0656 | 539 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 540 | |
e8886a1d RS |
541 | /* menu item parts */ |
542 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 543 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
544 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
545 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
546 | extern Lisp_Object Vdefine_key_rebound_commands; |
547 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 548 | |
0a7f1fc0 JB |
549 | /* An event header symbol HEAD may have a property named |
550 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
551 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
552 | mask of modifiers applied to it. If present, this is used to help | |
553 | speed up parse_modifiers. */ | |
554 | Lisp_Object Qevent_symbol_element_mask; | |
555 | ||
556 | /* An unmodified event header BASE may have a property named | |
557 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
558 | modified versions of BASE. If present, this helps speed up | |
559 | apply_modifiers. */ | |
560 | Lisp_Object Qmodifier_cache; | |
561 | ||
5ec75a55 | 562 | /* Symbols to use for parts of windows. */ |
284f4730 | 563 | Lisp_Object Qmode_line; |
e5d77022 | 564 | Lisp_Object Qvertical_line; |
3c370943 | 565 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 566 | Lisp_Object Qmenu_bar; |
7d60ad8a | 567 | extern Lisp_Object Qleft_margin, Qright_margin; |
3d566707 | 568 | extern Lisp_Object Qleft_fringe, Qright_fringe; |
2e3f0f61 | 569 | extern Lisp_Object QCmap; |
5ec75a55 | 570 | |
f4255cd1 JB |
571 | Lisp_Object recursive_edit_unwind (), command_loop (); |
572 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 573 | Lisp_Object Qextended_command_history; |
c04cbc3b | 574 | EMACS_TIME timer_check (); |
284f4730 | 575 | |
a0acc6c7 | 576 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 577 | |
2c834fb3 KH |
578 | extern char *x_get_keysym_name (); |
579 | ||
8eb4d8ef | 580 | static void record_menu_key (); |
22b94eeb | 581 | static int echo_length (); |
8eb4d8ef | 582 | |
f4eef8b4 RS |
583 | Lisp_Object Qpolling_period; |
584 | ||
d9d4c147 | 585 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
586 | Lisp_Object Vtimer_list; |
587 | ||
d9d4c147 KH |
588 | /* List of idle time timers. Appears in order of next scheduled event. */ |
589 | Lisp_Object Vtimer_idle_list; | |
590 | ||
87dd9b9b RS |
591 | /* Incremented whenever a timer is run. */ |
592 | int timers_run; | |
593 | ||
a9f16aa9 KH |
594 | extern Lisp_Object Vprint_level, Vprint_length; |
595 | ||
ffd56f97 JB |
596 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
597 | happens. */ | |
598 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
599 | |
600 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
601 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
602 | int interrupt_input; | |
603 | ||
604 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
605 | int interrupts_deferred; | |
606 | ||
87dd9b9b | 607 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
608 | int flow_control; |
609 | ||
284f4730 JB |
610 | /* Allow m- file to inhibit use of FIONREAD. */ |
611 | #ifdef BROKEN_FIONREAD | |
612 | #undef FIONREAD | |
613 | #endif | |
614 | ||
615 | /* We are unable to use interrupts if FIONREAD is not available, | |
616 | so flush SIGIO so we won't try. */ | |
fc7a70cc | 617 | #if !defined (FIONREAD) |
284f4730 JB |
618 | #ifdef SIGIO |
619 | #undef SIGIO | |
620 | #endif | |
621 | #endif | |
622 | ||
e98a93eb | 623 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 624 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 625 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
626 | #define POLL_FOR_INPUT |
627 | #endif | |
adf5cb9c KH |
628 | |
629 | /* After a command is executed, if point is moved into a region that | |
630 | has specific properties (e.g. composition, display), we adjust | |
631 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 632 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 633 | variable is set to nil before reading a command. */ |
da8f7368 | 634 | |
adf5cb9c KH |
635 | Lisp_Object Vdisable_point_adjustment; |
636 | ||
637 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 638 | |
adf5cb9c KH |
639 | Lisp_Object Vglobal_disable_point_adjustment; |
640 | ||
fdbb67fe GM |
641 | /* The time when Emacs started being idle. */ |
642 | ||
643 | static EMACS_TIME timer_idleness_start_time; | |
644 | ||
3021d3a9 RS |
645 | /* After Emacs stops being idle, this saves the last value |
646 | of timer_idleness_start_time from when it was idle. */ | |
647 | ||
648 | static EMACS_TIME timer_last_idleness_start_time; | |
649 | ||
284f4730 JB |
650 | \f |
651 | /* Global variable declarations. */ | |
652 | ||
a2d5fca0 JD |
653 | /* Flags for readable_events. */ |
654 | #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0) | |
655 | #define READABLE_EVENTS_FILTER_EVENTS (1 << 1) | |
656 | #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2) | |
657 | ||
284f4730 JB |
658 | /* Function for init_keyboard to call with no args (if nonzero). */ |
659 | void (*keyboard_init_hook) (); | |
660 | ||
0bbfdc25 GM |
661 | static int read_avail_input P_ ((int)); |
662 | static void get_input_pending P_ ((int *, int)); | |
663 | static int readable_events P_ ((int)); | |
664 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
665 | Lisp_Object, int *)); | |
8150596a | 666 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
667 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
668 | Lisp_Object *)); | |
669 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 670 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
671 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
672 | enum scroll_bar_part, | |
673 | Lisp_Object, Lisp_Object, | |
674 | unsigned long)); | |
514354e9 | 675 | #endif |
0bbfdc25 GM |
676 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
677 | Lisp_Object, char **, | |
678 | Lisp_Object *, unsigned)); | |
679 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
680 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 681 | static int parse_solitary_modifier (); |
0bbfdc25 | 682 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 683 | static void save_getcjmp (); |
0bbfdc25 | 684 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 685 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 686 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 687 | static void any_kboard_state P_ ((void)); |
5598c32e | 688 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
5c12e63f KS |
689 | static void timer_start_idle P_ ((void)); |
690 | static void timer_stop_idle P_ ((void)); | |
691 | static void timer_resume_idle P_ ((void)); | |
284f4730 | 692 | |
8026024c KH |
693 | /* Nonzero means don't try to suspend even if the operating system seems |
694 | to support it. */ | |
695 | static int cannot_suspend; | |
696 | ||
29204e13 RS |
697 | extern Lisp_Object Qidentity, Qonly; |
698 | \f | |
284f4730 JB |
699 | /* Install the string STR as the beginning of the string of echoing, |
700 | so that it serves as a prompt for the next character. | |
701 | Also start echoing. */ | |
702 | ||
dfcf069d | 703 | void |
284f4730 | 704 | echo_prompt (str) |
a4ef85ee | 705 | Lisp_Object str; |
284f4730 | 706 | { |
678e9d18 | 707 | current_kboard->echo_string = str; |
0d121f7c | 708 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 709 | echo_now (); |
284f4730 JB |
710 | } |
711 | ||
df0f2ba1 | 712 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
713 | C can be a character, which is printed prettily ("M-C-x" and all that |
714 | jazz), or a symbol, whose name is printed. */ | |
715 | ||
dfcf069d | 716 | void |
284f4730 JB |
717 | echo_char (c) |
718 | Lisp_Object c; | |
719 | { | |
c5fdd383 | 720 | if (current_kboard->immediate_echo) |
284f4730 | 721 | { |
678e9d18 GM |
722 | int size = KEY_DESCRIPTION_SIZE + 100; |
723 | char *buffer = (char *) alloca (size); | |
724 | char *ptr = buffer; | |
725 | Lisp_Object echo_string; | |
284f4730 | 726 | |
0d121f7c | 727 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 728 | |
284f4730 | 729 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 730 | c = EVENT_HEAD (c); |
284f4730 | 731 | |
8c18cbfb | 732 | if (INTEGERP (c)) |
284f4730 | 733 | { |
678e9d18 | 734 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 735 | } |
8c18cbfb | 736 | else if (SYMBOLP (c)) |
284f4730 | 737 | { |
1b049b51 KR |
738 | Lisp_Object name = SYMBOL_NAME (c); |
739 | int nbytes = SBYTES (name); | |
c60ee5e7 | 740 | |
0d121f7c | 741 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
742 | { |
743 | int offset = ptr - buffer; | |
0d121f7c | 744 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
745 | buffer = (char *) alloca (size); |
746 | ptr = buffer + offset; | |
747 | } | |
748 | ||
1b049b51 KR |
749 | ptr += copy_text (SDATA (name), ptr, nbytes, |
750 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
751 | } |
752 | ||
0d121f7c | 753 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 754 | && help_char_p (c)) |
284f4730 | 755 | { |
678e9d18 GM |
756 | const char *text = " (Type ? for further options)"; |
757 | int len = strlen (text); | |
c60ee5e7 | 758 | |
678e9d18 GM |
759 | if (size - (ptr - buffer) < len) |
760 | { | |
761 | int offset = ptr - buffer; | |
762 | size += len; | |
763 | buffer = (char *) alloca (size); | |
764 | ptr = buffer + offset; | |
765 | } | |
766 | ||
767 | bcopy (text, ptr, len); | |
768 | ptr += len; | |
284f4730 JB |
769 | } |
770 | ||
0d121f7c GM |
771 | /* Replace a dash from echo_dash with a space, otherwise |
772 | add a space at the end as a separator between keys. */ | |
678e9d18 | 773 | if (STRINGP (echo_string) |
2ff4d3d9 | 774 | && SCHARS (echo_string) > 1) |
0d121f7c | 775 | { |
2ff4d3d9 RS |
776 | Lisp_Object last_char, prev_char, idx; |
777 | ||
778 | idx = make_number (SCHARS (echo_string) - 2); | |
779 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
780 | |
781 | idx = make_number (SCHARS (echo_string) - 1); | |
782 | last_char = Faref (echo_string, idx); | |
783 | ||
2ff4d3d9 RS |
784 | /* We test PREV_CHAR to make sure this isn't the echoing |
785 | of a minus-sign. */ | |
786 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
787 | Faset (echo_string, idx, make_number (' ')); |
788 | else | |
789 | echo_string = concat2 (echo_string, build_string (" ")); | |
790 | } | |
678e9d18 GM |
791 | |
792 | current_kboard->echo_string | |
793 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 794 | |
3dbd9ee4 | 795 | echo_now (); |
284f4730 JB |
796 | } |
797 | } | |
798 | ||
799 | /* Temporarily add a dash to the end of the echo string if it's not | |
800 | empty, so that it serves as a mini-prompt for the very next character. */ | |
801 | ||
dfcf069d | 802 | void |
284f4730 JB |
803 | echo_dash () |
804 | { | |
678e9d18 GM |
805 | /* Do nothing if not echoing at all. */ |
806 | if (NILP (current_kboard->echo_string)) | |
807 | return; | |
808 | ||
c5fdd383 | 809 | if (!current_kboard->immediate_echo |
0d121f7c | 810 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 811 | return; |
c60ee5e7 | 812 | |
7a80a6f6 | 813 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 814 | if (current_kboard->echo_after_prompt |
0d121f7c | 815 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 816 | return; |
c60ee5e7 | 817 | |
366511da MB |
818 | /* Do nothing if we have already put a dash at the end. */ |
819 | if (SCHARS (current_kboard->echo_string) > 1) | |
820 | { | |
821 | Lisp_Object last_char, prev_char, idx; | |
822 | ||
823 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); | |
824 | prev_char = Faref (current_kboard->echo_string, idx); | |
825 | ||
826 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); | |
827 | last_char = Faref (current_kboard->echo_string, idx); | |
828 | ||
829 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
830 | return; | |
831 | } | |
832 | ||
284f4730 JB |
833 | /* Put a dash at the end of the buffer temporarily, |
834 | but make it go away when the next character is added. */ | |
678e9d18 GM |
835 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
836 | build_string ("-")); | |
3dbd9ee4 | 837 | echo_now (); |
284f4730 JB |
838 | } |
839 | ||
840 | /* Display the current echo string, and begin echoing if not already | |
841 | doing so. */ | |
842 | ||
07a59269 | 843 | void |
3dbd9ee4 | 844 | echo_now () |
284f4730 | 845 | { |
c5fdd383 | 846 | if (!current_kboard->immediate_echo) |
284f4730 JB |
847 | { |
848 | int i; | |
c5fdd383 | 849 | current_kboard->immediate_echo = 1; |
284f4730 JB |
850 | |
851 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
852 | { |
853 | Lisp_Object c; | |
22b94eeb RS |
854 | |
855 | /* Set before_command_echo_length to the value that would | |
856 | have been saved before the start of this subcommand in | |
857 | command_loop_1, if we had already been echoing then. */ | |
858 | if (i == this_single_command_key_start) | |
859 | before_command_echo_length = echo_length (); | |
860 | ||
d0a57728 RS |
861 | c = XVECTOR (this_command_keys)->contents[i]; |
862 | if (! (EVENT_HAS_PARAMETERS (c) | |
863 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
864 | echo_char (c); | |
865 | } | |
22b94eeb RS |
866 | |
867 | /* Set before_command_echo_length to the value that would | |
868 | have been saved before the start of this subcommand in | |
869 | command_loop_1, if we had already been echoing then. */ | |
870 | if (this_command_key_count == this_single_command_key_start) | |
871 | before_command_echo_length = echo_length (); | |
872 | ||
873 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
874 | echo_dash (); |
875 | } | |
876 | ||
877 | echoing = 1; | |
678e9d18 | 878 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 879 | SBYTES (current_kboard->echo_string), |
d5db4077 | 880 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
881 | echoing = 0; |
882 | ||
59a84f8e GM |
883 | /* Record in what buffer we echoed, and from which kboard. */ |
884 | echo_message_buffer = echo_area_buffer[0]; | |
885 | echo_kboard = current_kboard; | |
886 | ||
284f4730 JB |
887 | if (waiting_for_input && !NILP (Vquit_flag)) |
888 | quit_throw_to_read_char (); | |
889 | } | |
890 | ||
891 | /* Turn off echoing, for the start of a new command. */ | |
892 | ||
dfcf069d | 893 | void |
284f4730 JB |
894 | cancel_echoing () |
895 | { | |
c5fdd383 | 896 | current_kboard->immediate_echo = 0; |
c5fdd383 | 897 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 898 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
899 | ok_to_echo_at_next_pause = NULL; |
900 | echo_kboard = NULL; | |
901 | echo_message_buffer = Qnil; | |
284f4730 JB |
902 | } |
903 | ||
904 | /* Return the length of the current echo string. */ | |
905 | ||
906 | static int | |
907 | echo_length () | |
908 | { | |
678e9d18 | 909 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 910 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 911 | : 0); |
284f4730 JB |
912 | } |
913 | ||
914 | /* Truncate the current echo message to its first LEN chars. | |
915 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 916 | switches frames while entering a key sequence. */ |
284f4730 JB |
917 | |
918 | static void | |
678e9d18 GM |
919 | echo_truncate (nchars) |
920 | int nchars; | |
921 | { | |
922 | if (STRINGP (current_kboard->echo_string)) | |
923 | current_kboard->echo_string | |
924 | = Fsubstring (current_kboard->echo_string, | |
925 | make_number (0), make_number (nchars)); | |
926 | truncate_echo_area (nchars); | |
284f4730 JB |
927 | } |
928 | ||
929 | \f | |
930 | /* Functions for manipulating this_command_keys. */ | |
931 | static void | |
932 | add_command_key (key) | |
933 | Lisp_Object key; | |
934 | { | |
22b94eeb RS |
935 | #if 0 /* Not needed after we made Freset_this_command_lengths |
936 | do the job immediately. */ | |
71918b75 RS |
937 | /* If reset-this-command-length was called recently, obey it now. |
938 | See the doc string of that function for an explanation of why. */ | |
939 | if (before_command_restore_flag) | |
940 | { | |
941 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
942 | if (this_command_key_count < this_single_command_key_start) |
943 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
944 | echo_truncate (before_command_echo_length_1); |
945 | before_command_restore_flag = 0; | |
946 | } | |
22b94eeb | 947 | #endif |
71918b75 | 948 | |
f4e05d97 GM |
949 | if (this_command_key_count >= ASIZE (this_command_keys)) |
950 | this_command_keys = larger_vector (this_command_keys, | |
951 | 2 * ASIZE (this_command_keys), | |
952 | Qnil); | |
6569cc8d | 953 | |
f4e05d97 GM |
954 | AREF (this_command_keys, this_command_key_count) = key; |
955 | ++this_command_key_count; | |
284f4730 | 956 | } |
f4e05d97 | 957 | |
284f4730 JB |
958 | \f |
959 | Lisp_Object | |
960 | recursive_edit_1 () | |
961 | { | |
aed13378 | 962 | int count = SPECPDL_INDEX (); |
284f4730 JB |
963 | Lisp_Object val; |
964 | ||
965 | if (command_loop_level > 0) | |
966 | { | |
967 | specbind (Qstandard_output, Qt); | |
968 | specbind (Qstandard_input, Qt); | |
969 | } | |
970 | ||
84265027 | 971 | #ifdef HAVE_X_WINDOWS |
526a058f | 972 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 973 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
974 | can take some time. Do not check for display_hourglass_p here, |
975 | because it could already be nil. */ | |
526a058f | 976 | cancel_hourglass (); |
84265027 GM |
977 | #endif |
978 | ||
980a2d69 GM |
979 | /* This function may have been called from a debugger called from |
980 | within redisplay, for instance by Edebugging a function called | |
981 | from fontification-functions. We want to allow redisplay in | |
982 | the debugging session. | |
983 | ||
984 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
985 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
986 | recursive edit, the original redisplay leading to the recursive | |
987 | edit will be unwound. The outcome should therefore be safe. */ | |
988 | specbind (Qinhibit_redisplay, Qnil); | |
989 | redisplaying_p = 0; | |
990 | ||
284f4730 JB |
991 | val = command_loop (); |
992 | if (EQ (val, Qt)) | |
993 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
994 | /* Handle throw from read_minibuf when using minibuffer |
995 | while it's active but we're in another window. */ | |
996 | if (STRINGP (val)) | |
997 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 998 | |
cb5df6ae | 999 | return unbind_to (count, Qnil); |
284f4730 JB |
1000 | } |
1001 | ||
1002 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 1003 | |
07a59269 | 1004 | void |
284f4730 JB |
1005 | record_auto_save () |
1006 | { | |
c43b1734 | 1007 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 1008 | } |
5846638c RS |
1009 | |
1010 | /* Make an auto save happen as soon as possible at command level. */ | |
1011 | ||
dfcf069d | 1012 | void |
5846638c RS |
1013 | force_auto_save_soon () |
1014 | { | |
1015 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
1016 | |
1017 | record_asynch_buffer_change (); | |
5846638c | 1018 | } |
284f4730 | 1019 | \f |
284f4730 | 1020 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
1021 | doc: /* Invoke the editor command loop recursively. |
1022 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1023 | that tells this function to return. | |
6e604a9b | 1024 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 PJ |
1025 | This function is called by the editor initialization to begin editing. */) |
1026 | () | |
284f4730 | 1027 | { |
aed13378 | 1028 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1029 | Lisp_Object buffer; |
284f4730 | 1030 | |
96edd5d4 KS |
1031 | /* If we enter while input is blocked, don't lock up here. |
1032 | This may happen through the debugger during redisplay. */ | |
1033 | if (INPUT_BLOCKED_P) | |
1034 | return Qnil; | |
1035 | ||
284f4730 JB |
1036 | command_loop_level++; |
1037 | update_mode_lines = 1; | |
1038 | ||
9ce50b1e GM |
1039 | if (command_loop_level |
1040 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1041 | buffer = Fcurrent_buffer (); | |
1042 | else | |
1043 | buffer = Qnil; | |
1044 | ||
1045 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1046 | like it is done in the splash screen display, we have to | |
1047 | make sure that we restore single_kboard as command_loop_1 | |
1048 | would have done if it were left normally. */ | |
284f4730 | 1049 | record_unwind_protect (recursive_edit_unwind, |
9ce50b1e GM |
1050 | Fcons (buffer, single_kboard ? Qt : Qnil)); |
1051 | ||
284f4730 JB |
1052 | recursive_edit_1 (); |
1053 | return unbind_to (count, Qnil); | |
1054 | } | |
1055 | ||
1056 | Lisp_Object | |
9ce50b1e GM |
1057 | recursive_edit_unwind (info) |
1058 | Lisp_Object info; | |
284f4730 | 1059 | { |
9ce50b1e GM |
1060 | if (BUFFERP (XCAR (info))) |
1061 | Fset_buffer (XCAR (info)); | |
c60ee5e7 | 1062 | |
9ce50b1e GM |
1063 | if (NILP (XCDR (info))) |
1064 | any_kboard_state (); | |
1065 | else | |
1066 | single_kboard_state (); | |
c60ee5e7 | 1067 | |
284f4730 JB |
1068 | command_loop_level--; |
1069 | update_mode_lines = 1; | |
1070 | return Qnil; | |
1071 | } | |
9ce50b1e | 1072 | |
284f4730 | 1073 | \f |
604ccd1d | 1074 | static void |
1e8bd3da | 1075 | any_kboard_state () |
604ccd1d | 1076 | { |
1e8bd3da RS |
1077 | #ifdef MULTI_KBOARD |
1078 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1079 | it will right away be read by read_key_sequence, | |
1080 | and then if we do switch KBOARDS, it will go into the side | |
1081 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1082 | if (CONSP (Vunread_command_events)) |
4524b161 | 1083 | { |
c5fdd383 KH |
1084 | current_kboard->kbd_queue |
1085 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1086 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1087 | } |
604ccd1d | 1088 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1089 | #endif |
1090 | single_kboard = 0; | |
1091 | #endif | |
604ccd1d | 1092 | } |
1e8bd3da RS |
1093 | |
1094 | /* Switch to the single-kboard state, making current_kboard | |
1095 | the only KBOARD from which further input is accepted. */ | |
1096 | ||
1097 | void | |
1098 | single_kboard_state () | |
1099 | { | |
1100 | #ifdef MULTI_KBOARD | |
1101 | single_kboard = 1; | |
604ccd1d | 1102 | #endif |
1e8bd3da RS |
1103 | } |
1104 | ||
0c1c1b93 RS |
1105 | /* If we're in single_kboard state for kboard KBOARD, |
1106 | get out of it. */ | |
1107 | ||
1108 | void | |
1109 | not_single_kboard_state (kboard) | |
1110 | KBOARD *kboard; | |
1111 | { | |
26503ad2 | 1112 | #ifdef MULTI_KBOARD |
0c1c1b93 RS |
1113 | if (kboard == current_kboard) |
1114 | single_kboard = 0; | |
26503ad2 | 1115 | #endif |
0c1c1b93 RS |
1116 | } |
1117 | ||
1e8bd3da RS |
1118 | /* Maintain a stack of kboards, so other parts of Emacs |
1119 | can switch temporarily to the kboard of a given frame | |
1120 | and then revert to the previous status. */ | |
1121 | ||
1122 | struct kboard_stack | |
1123 | { | |
1124 | KBOARD *kboard; | |
1125 | struct kboard_stack *next; | |
1126 | }; | |
1127 | ||
1128 | static struct kboard_stack *kboard_stack; | |
1129 | ||
1130 | void | |
1131 | push_frame_kboard (f) | |
1132 | FRAME_PTR f; | |
1133 | { | |
ab48365b | 1134 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1135 | struct kboard_stack *p |
1136 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1137 | ||
1138 | p->next = kboard_stack; | |
1139 | p->kboard = current_kboard; | |
1140 | kboard_stack = p; | |
1141 | ||
1142 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 1143 | #endif |
1e8bd3da RS |
1144 | } |
1145 | ||
1146 | void | |
1147 | pop_frame_kboard () | |
1148 | { | |
ab48365b | 1149 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
1150 | struct kboard_stack *p = kboard_stack; |
1151 | current_kboard = p->kboard; | |
1152 | kboard_stack = p->next; | |
1153 | xfree (p); | |
ab48365b | 1154 | #endif |
1e8bd3da RS |
1155 | } |
1156 | \f | |
1157 | /* Handle errors that are not handled at inner levels | |
1158 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1159 | |
284f4730 JB |
1160 | Lisp_Object |
1161 | cmd_error (data) | |
1162 | Lisp_Object data; | |
a1341f75 | 1163 | { |
a9f16aa9 | 1164 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1165 | char macroerror[50]; |
1166 | ||
160552c5 RS |
1167 | #ifdef HAVE_X_WINDOWS |
1168 | if (display_hourglass_p) | |
1169 | cancel_hourglass (); | |
1170 | #endif | |
1171 | ||
649d952d | 1172 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 1173 | { |
649d952d | 1174 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
1175 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
1176 | else | |
1177 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 1178 | executing_kbd_macro_iterations); |
e881d8b2 RS |
1179 | } |
1180 | else | |
1181 | *macroerror = 0; | |
a9f16aa9 | 1182 | |
a1341f75 RS |
1183 | Vstandard_output = Qt; |
1184 | Vstandard_input = Qt; | |
ce0d2858 | 1185 | Vexecuting_kbd_macro = Qnil; |
649d952d | 1186 | executing_kbd_macro = Qnil; |
d8bcf58e | 1187 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1188 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1189 | cancel_echoing (); |
a9f16aa9 KH |
1190 | |
1191 | /* Avoid unquittable loop if data contains a circular list. */ | |
1192 | old_level = Vprint_level; | |
1193 | old_length = Vprint_length; | |
0c04a67e RS |
1194 | XSETFASTINT (Vprint_level, 10); |
1195 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1196 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1197 | Vprint_level = old_level; |
1198 | Vprint_length = old_length; | |
a1341f75 RS |
1199 | |
1200 | Vquit_flag = Qnil; | |
1201 | ||
1202 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1203 | #ifdef MULTI_KBOARD |
e3ee34f0 RS |
1204 | if (command_loop_level == 0 && minibuf_level == 0) |
1205 | any_kboard_state (); | |
ff4b06d3 | 1206 | #endif |
a1341f75 RS |
1207 | |
1208 | return make_number (0); | |
1209 | } | |
1210 | ||
301738ed RS |
1211 | /* Take actions on handling an error. DATA is the data that describes |
1212 | the error. | |
1213 | ||
1214 | CONTEXT is a C-string containing ASCII characters only which | |
1215 | describes the context in which the error happened. If we need to | |
1216 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1217 | string. */ | |
1218 | ||
07a59269 | 1219 | void |
a1341f75 RS |
1220 | cmd_error_internal (data, context) |
1221 | Lisp_Object data; | |
1222 | char *context; | |
284f4730 | 1223 | { |
284f4730 | 1224 | Lisp_Object stream; |
7ee32cda | 1225 | int kill_emacs_p = 0; |
788f89eb | 1226 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1227 | |
1228 | Vquit_flag = Qnil; | |
1229 | Vinhibit_quit = Qt; | |
985f9f66 | 1230 | clear_message (1, 0); |
284f4730 | 1231 | |
ff11dfa1 | 1232 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1233 | yet, or we're not interactive, it's best to dump this message out |
1234 | to stderr and exit. */ | |
788f89eb | 1235 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1236 | /* This is the case of the frame dumped with Emacs, when we're |
1237 | running under a window system. */ | |
1238 | || (!NILP (Vwindow_system) | |
1239 | && !inhibit_window_system | |
788f89eb | 1240 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1241 | || noninteractive) |
7ee32cda GM |
1242 | { |
1243 | stream = Qexternal_debugging_output; | |
1244 | kill_emacs_p = 1; | |
1245 | } | |
284f4730 JB |
1246 | else |
1247 | { | |
1248 | Fdiscard_input (); | |
dc4854ce | 1249 | message_log_maybe_newline (); |
284f4730 JB |
1250 | bitch_at_user (); |
1251 | stream = Qt; | |
1252 | } | |
1253 | ||
dc4854ce RS |
1254 | /* The immediate context is not interesting for Quits, |
1255 | since they are asyncronous. */ | |
1256 | if (EQ (XCAR (data), Qquit)) | |
1257 | Vsignaling_function = Qnil; | |
c60ee5e7 | 1258 | |
dc4854ce | 1259 | print_error_message (data, stream, context, Vsignaling_function); |
a1341f75 | 1260 | |
dc4854ce | 1261 | Vsignaling_function = Qnil; |
284f4730 | 1262 | |
ff11dfa1 | 1263 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1264 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1265 | if (kill_emacs_p) |
284f4730 JB |
1266 | { |
1267 | Fterpri (stream); | |
1268 | Fkill_emacs (make_number (-1)); | |
1269 | } | |
284f4730 JB |
1270 | } |
1271 | \f | |
1272 | Lisp_Object command_loop_1 (); | |
1273 | Lisp_Object command_loop_2 (); | |
1274 | Lisp_Object top_level_1 (); | |
1275 | ||
1276 | /* Entry to editor-command-loop. | |
1277 | This level has the catches for exiting/returning to editor command loop. | |
1278 | It returns nil to exit recursive edit, t to abort it. */ | |
1279 | ||
1280 | Lisp_Object | |
1281 | command_loop () | |
1282 | { | |
1283 | if (command_loop_level > 0 || minibuf_level > 0) | |
1284 | { | |
07ba902e RS |
1285 | Lisp_Object val; |
1286 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1287 | executing_kbd_macro = Qnil; |
68c46464 | 1288 | return val; |
284f4730 JB |
1289 | } |
1290 | else | |
1291 | while (1) | |
1292 | { | |
1293 | internal_catch (Qtop_level, top_level_1, Qnil); | |
e3ee34f0 RS |
1294 | /* Reset single_kboard in case top-level set it while |
1295 | evaluating an -f option, or we are stuck there for some | |
1296 | other reason. */ | |
1297 | any_kboard_state (); | |
284f4730 | 1298 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1299 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1300 | |
284f4730 JB |
1301 | /* End of file in -batch run causes exit here. */ |
1302 | if (noninteractive) | |
1303 | Fkill_emacs (Qt); | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | /* Here we catch errors in execution of commands within the | |
1308 | editing loop, and reenter the editing loop. | |
1309 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1310 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1311 | returned due to end of file (or end of kbd macro). */ |
1312 | ||
1313 | Lisp_Object | |
1314 | command_loop_2 () | |
1315 | { | |
1316 | register Lisp_Object val; | |
1317 | ||
1318 | do | |
1319 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1320 | while (!NILP (val)); | |
1321 | ||
1322 | return Qnil; | |
1323 | } | |
1324 | ||
1325 | Lisp_Object | |
1326 | top_level_2 () | |
1327 | { | |
1328 | return Feval (Vtop_level); | |
1329 | } | |
1330 | ||
1331 | Lisp_Object | |
1332 | top_level_1 () | |
1333 | { | |
1334 | /* On entry to the outer level, run the startup file */ | |
1335 | if (!NILP (Vtop_level)) | |
1336 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1337 | else if (!NILP (Vpurify_flag)) | |
1338 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1339 | else | |
1340 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1341 | return Qnil; | |
1342 | } | |
1343 | ||
1344 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1345 | doc: /* Exit all recursive editing levels. */) |
1346 | () | |
284f4730 | 1347 | { |
2c9cf2c8 | 1348 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1349 | if (display_hourglass_p) |
1350 | cancel_hourglass (); | |
2c9cf2c8 | 1351 | #endif |
96edd5d4 | 1352 | |
a25e44b2 JD |
1353 | /* Unblock input if we enter with input blocked. This may happen if |
1354 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1355 | while (INPUT_BLOCKED_P) | |
1356 | UNBLOCK_INPUT; | |
1357 | ||
8c907a56 | 1358 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1359 | } |
1360 | ||
1361 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1362 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1363 | () | |
284f4730 JB |
1364 | { |
1365 | if (command_loop_level > 0 || minibuf_level > 0) | |
1366 | Fthrow (Qexit, Qnil); | |
1367 | ||
1368 | error ("No recursive edit is in progress"); | |
8c907a56 | 1369 | return Qnil; |
284f4730 JB |
1370 | } |
1371 | ||
1372 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1373 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1374 | () | |
284f4730 JB |
1375 | { |
1376 | if (command_loop_level > 0 || minibuf_level > 0) | |
1377 | Fthrow (Qexit, Qt); | |
1378 | ||
1379 | error ("No recursive edit is in progress"); | |
8c907a56 | 1380 | return Qnil; |
284f4730 JB |
1381 | } |
1382 | \f | |
1383 | /* This is the actual command reading loop, | |
1384 | sans error-handling encapsulation. */ | |
1385 | ||
a7b772c1 GM |
1386 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1387 | int, int, int)); | |
1388 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1389 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1390 | |
0af912f0 JD |
1391 | /* Cancel hourglass from protect_unwind. |
1392 | ARG is not used. */ | |
bb8db7e1 | 1393 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1394 | static Lisp_Object |
1395 | cancel_hourglass_unwind (arg) | |
1396 | Lisp_Object arg; | |
1397 | { | |
1398 | cancel_hourglass (); | |
cea5d0d4 | 1399 | return Qnil; |
0af912f0 | 1400 | } |
bb8db7e1 | 1401 | #endif |
0af912f0 | 1402 | |
284f4730 JB |
1403 | Lisp_Object |
1404 | command_loop_1 () | |
1405 | { | |
03cee6ae GM |
1406 | Lisp_Object cmd; |
1407 | int lose; | |
284f4730 JB |
1408 | int nonundocount; |
1409 | Lisp_Object keybuf[30]; | |
1410 | int i; | |
284f4730 | 1411 | int no_direct; |
86e5706b | 1412 | int prev_modiff; |
8c907a56 | 1413 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1414 | #ifdef MULTI_KBOARD |
1e8bd3da | 1415 | int was_locked = single_kboard; |
bded54dd | 1416 | #endif |
2764bebd | 1417 | int already_adjusted; |
284f4730 | 1418 | |
d9b641bb | 1419 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1420 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1421 | Vdeactivate_mark = Qnil; |
284f4730 | 1422 | waiting_for_input = 0; |
df0f2ba1 | 1423 | cancel_echoing (); |
284f4730 | 1424 | |
284f4730 | 1425 | nonundocount = 0; |
284f4730 | 1426 | this_command_key_count = 0; |
63020c46 | 1427 | this_command_key_count_reset = 0; |
6321824f | 1428 | this_single_command_key_start = 0; |
284f4730 | 1429 | |
325309f5 | 1430 | if (NILP (Vmemory_full)) |
59aadc81 | 1431 | { |
10ffcb64 RS |
1432 | /* Make sure this hook runs after commands that get errors and |
1433 | throw to top level. */ | |
1434 | /* Note that the value cell will never directly contain nil | |
1435 | if the symbol is a local variable. */ | |
1436 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1437 | safe_run_hooks (Qpost_command_hook); | |
1438 | ||
1439 | /* If displaying a message, resize the echo area window to fit | |
1440 | that message's size exactly. */ | |
1441 | if (!NILP (echo_area_buffer[0])) | |
1442 | resize_echo_area_exactly (); | |
1443 | ||
1444 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1445 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1446 | } |
1447 | ||
10ffcb64 RS |
1448 | Vmemory_full = Qnil; |
1449 | ||
51d5a2c9 | 1450 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1451 | current_kboard->Vlast_command = Vthis_command; |
1452 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1453 | |
284f4730 JB |
1454 | while (1) |
1455 | { | |
788f89eb | 1456 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1457 | Fkill_emacs (Qnil); |
1458 | ||
284f4730 JB |
1459 | /* Make sure the current window's buffer is selected. */ |
1460 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1461 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1462 | ||
1463 | /* Display any malloc warning that just came out. Use while because | |
1464 | displaying one warning can cause another. */ | |
1465 | ||
1466 | while (pending_malloc_warning) | |
1467 | display_malloc_warning (); | |
1468 | ||
1469 | no_direct = 0; | |
1470 | ||
86e5706b RS |
1471 | Vdeactivate_mark = Qnil; |
1472 | ||
284f4730 | 1473 | /* If minibuffer on and echo area in use, |
00392ce6 | 1474 | wait a short time and redraw minibuffer. */ |
284f4730 | 1475 | |
7ee32cda | 1476 | if (minibuf_level |
985f9f66 | 1477 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1478 | && EQ (minibuf_window, echo_area_window) |
1479 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1480 | { |
f1bed6d8 RS |
1481 | /* Bind inhibit-quit to t so that C-g gets read in |
1482 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1483 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1484 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1485 | |
00392ce6 | 1486 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1487 | /* Clear the echo area. */ |
301738ed | 1488 | message2 (0, 0, 0); |
cdb9d665 | 1489 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1490 | |
db08707d RS |
1491 | unbind_to (count, Qnil); |
1492 | ||
e6aa7813 | 1493 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1494 | if (!NILP (Vquit_flag)) |
1495 | { | |
1496 | Vquit_flag = Qnil; | |
24597608 | 1497 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1498 | } |
1499 | } | |
1500 | ||
1501 | #ifdef C_ALLOCA | |
ff4b06d3 | 1502 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1503 | /* Since we can free the most stuff here. */ |
1504 | #endif /* C_ALLOCA */ | |
1505 | ||
8f805655 | 1506 | #if 0 |
8f805655 JB |
1507 | /* Select the frame that the last event came from. Usually, |
1508 | switch-frame events will take care of this, but if some lisp | |
1509 | code swallows a switch-frame event, we'll fix things up here. | |
1510 | Is this a good idea? */ | |
8c18cbfb | 1511 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1512 | && !EQ (internal_last_event_frame, selected_frame)) |
f840fb39 | 1513 | Fselect_frame (internal_last_event_frame); |
284f4730 | 1514 | #endif |
48e416d4 RS |
1515 | /* If it has changed current-menubar from previous value, |
1516 | really recompute the menubar from the value. */ | |
a646e520 RS |
1517 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1518 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1519 | call0 (Qrecompute_lucid_menubar); |
1520 | ||
71918b75 RS |
1521 | before_command_key_count = this_command_key_count; |
1522 | before_command_echo_length = echo_length (); | |
1523 | ||
d5eecefb RS |
1524 | Vthis_command = Qnil; |
1525 | real_this_command = Qnil; | |
9d138659 | 1526 | Vthis_original_command = Qnil; |
d7437ef6 | 1527 | |
8f805655 | 1528 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1529 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1530 | Qnil, 0, 1, 1); |
8f805655 | 1531 | |
6fac1409 | 1532 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1533 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1534 | Fkill_emacs (Qnil); |
6fac1409 RS |
1535 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1536 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1537 | ||
8f805655 JB |
1538 | ++num_input_keys; |
1539 | ||
284f4730 JB |
1540 | /* Now we have read a key sequence of length I, |
1541 | or else I is 0 and we found end of file. */ | |
1542 | ||
1543 | if (i == 0) /* End of file -- happens only in */ | |
1544 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1545 | /* -1 means read_key_sequence got a menu that was rejected. |
1546 | Just loop around and read another command. */ | |
1547 | if (i == -1) | |
1548 | { | |
1549 | cancel_echoing (); | |
1550 | this_command_key_count = 0; | |
63020c46 | 1551 | this_command_key_count_reset = 0; |
6321824f | 1552 | this_single_command_key_start = 0; |
ff4b06d3 | 1553 | goto finalize; |
dcc408a0 | 1554 | } |
284f4730 | 1555 | |
284f4730 JB |
1556 | last_command_char = keybuf[i - 1]; |
1557 | ||
75c0b143 RS |
1558 | /* If the previous command tried to force a specific window-start, |
1559 | forget about that, in case this command moves point far away | |
c422836d KH |
1560 | from that position. But also throw away beg_unchanged and |
1561 | end_unchanged information in that case, so that redisplay will | |
1562 | update the whole window properly. */ | |
1563 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1564 | { | |
9351ebd0 | 1565 | struct buffer *b; |
c422836d | 1566 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1567 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1568 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1569 | } |
75c0b143 | 1570 | |
284f4730 | 1571 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1572 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1573 | { |
1574 | if (!NILP (Vquit_flag)) | |
1575 | { | |
ce0d2858 | 1576 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1577 | QUIT; /* Make some noise. */ |
1578 | /* Will return since macro now empty. */ | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1583 | cases identified below. */ |
86e5706b RS |
1584 | prev_buffer = current_buffer; |
1585 | prev_modiff = MODIFF; | |
8746da95 | 1586 | last_point_position = PT; |
18cd2eeb | 1587 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1588 | |
adf5cb9c KH |
1589 | /* By default, we adjust point to a boundary of a region that |
1590 | has such a property that should be treated intangible | |
1591 | (e.g. composition, display). But, some commands will set | |
1592 | this variable differently. */ | |
1593 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1594 | |
be2488ca GM |
1595 | /* Process filters and timers may have messed with deactivate-mark. |
1596 | reset it before we execute the command. */ | |
1597 | Vdeactivate_mark = Qnil; | |
1598 | ||
8b9940e6 KS |
1599 | /* Remap command through active keymaps */ |
1600 | Vthis_original_command = cmd; | |
a34cb674 | 1601 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1602 | { |
1603 | Lisp_Object cmd1; | |
023b93f6 | 1604 | if (cmd1 = Fcommand_remapping (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1605 | cmd = cmd1; |
1606 | } | |
1607 | ||
284f4730 JB |
1608 | /* Execute the command. */ |
1609 | ||
d5eecefb RS |
1610 | Vthis_command = cmd; |
1611 | real_this_command = cmd; | |
a98ea3f9 RS |
1612 | /* Note that the value cell will never directly contain nil |
1613 | if the symbol is a local variable. */ | |
e98a93eb | 1614 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1615 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1616 | |
2764bebd RS |
1617 | already_adjusted = 0; |
1618 | ||
d5eecefb | 1619 | if (NILP (Vthis_command)) |
284f4730 JB |
1620 | { |
1621 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1622 | Lisp_Object keys = Fvector (i, keybuf); |
1623 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1624 | bitch_at_user (); |
1bf0e604 | 1625 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1626 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1627 | update_mode_lines = 1; |
d8bcf58e | 1628 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1629 | } |
1630 | else | |
1631 | { | |
d8bcf58e | 1632 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1633 | { |
75045dcb RS |
1634 | /* In case we jump to directly_done. */ |
1635 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1636 | ||
284f4730 JB |
1637 | /* Recognize some common commands in common situations and |
1638 | do them directly. */ | |
d5eecefb | 1639 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1640 | { |
51ad8a68 | 1641 | struct Lisp_Char_Table *dp |
284f4730 | 1642 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1643 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1644 | SET_PT (PT + 1); |
d86ba5c5 RS |
1645 | if (! NILP (Vpost_command_hook)) |
1646 | /* Put this before calling adjust_point_for_property | |
1647 | so it will only get called once in any case. */ | |
1648 | goto directly_done; | |
22b94eeb RS |
1649 | if (current_buffer == prev_buffer |
1650 | && last_point_position != PT | |
1651 | && NILP (Vdisable_point_adjustment) | |
1652 | && NILP (Vglobal_disable_point_adjustment)) | |
1653 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1654 | already_adjusted = 1; |
1655 | if (PT == last_point_position + 1 | |
1656 | && (dp | |
1657 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1658 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1659 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1660 | && (lose >= 0x20 && lose < 0x7f))) | |
1661 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1662 | /* To extract the case of continuation on |
1663 | wide-column characters. */ | |
8458ede6 | 1664 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1665 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1666 | >= MODIFF) | |
598ba4c7 RS |
1667 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1668 | >= OVERLAY_MODIFF) | |
284f4730 | 1669 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1670 | == PT - 1) |
284f4730 JB |
1671 | && !windows_or_buffers_changed |
1672 | && EQ (current_buffer->selective_display, Qnil) | |
1673 | && !detect_input_pending () | |
962ae636 | 1674 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1675 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1676 | direct_output_forward_char (1); |
284f4730 JB |
1677 | goto directly_done; |
1678 | } | |
d5eecefb | 1679 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1680 | { |
51ad8a68 | 1681 | struct Lisp_Char_Table *dp |
284f4730 | 1682 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1683 | SET_PT (PT - 1); |
aaf35234 | 1684 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1685 | if (! NILP (Vpost_command_hook)) |
1686 | goto directly_done; | |
22b94eeb RS |
1687 | if (current_buffer == prev_buffer |
1688 | && last_point_position != PT | |
1689 | && NILP (Vdisable_point_adjustment) | |
1690 | && NILP (Vglobal_disable_point_adjustment)) | |
1691 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1692 | already_adjusted = 1; |
1693 | if (PT == last_point_position - 1 | |
1694 | && (dp | |
1695 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1696 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1697 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1698 | && (lose >= 0x20 && lose < 0x7f))) | |
1699 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1700 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1701 | >= MODIFF) | |
598ba4c7 RS |
1702 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1703 | >= OVERLAY_MODIFF) | |
284f4730 | 1704 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1705 | == PT + 1) |
284f4730 JB |
1706 | && !windows_or_buffers_changed |
1707 | && EQ (current_buffer->selective_display, Qnil) | |
1708 | && !detect_input_pending () | |
962ae636 | 1709 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1710 | && NILP (Vexecuting_kbd_macro)) |
e35b6123 | 1711 | direct_output_forward_char (-1); |
284f4730 JB |
1712 | goto directly_done; |
1713 | } | |
d5eecefb | 1714 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 SM |
1715 | /* Try this optimization only on char keystrokes. */ |
1716 | && NATNUMP (last_command_char) | |
1717 | && CHAR_VALID_P (XFASTINT (last_command_char), 0)) | |
284f4730 | 1718 | { |
d86ba5c5 RS |
1719 | unsigned int c |
1720 | = translate_char (Vtranslation_table_for_input, | |
1721 | XFASTINT (last_command_char), 0, 0, 0); | |
fc9cce4e | 1722 | int value; |
ce0d2858 | 1723 | if (NILP (Vexecuting_kbd_macro) |
fc9cce4e | 1724 | && !EQ (minibuf_window, selected_window)) |
284f4730 JB |
1725 | { |
1726 | if (!nonundocount || nonundocount >= 20) | |
1727 | { | |
1728 | Fundo_boundary (); | |
1729 | nonundocount = 0; | |
1730 | } | |
1731 | nonundocount++; | |
1732 | } | |
c60ee5e7 | 1733 | |
fc9cce4e RS |
1734 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1735 | < MODIFF) | |
598ba4c7 RS |
1736 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1737 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1738 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1739 | != PT) | |
4c61f38e | 1740 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1741 | || windows_or_buffers_changed |
1742 | || !EQ (current_buffer->selective_display, Qnil) | |
1743 | || detect_input_pending () | |
962ae636 | 1744 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1745 | || !NILP (Vexecuting_kbd_macro)); |
c60ee5e7 | 1746 | |
fc9cce4e | 1747 | value = internal_self_insert (c, 0); |
7ee32cda | 1748 | |
fc9cce4e RS |
1749 | if (value == 2) |
1750 | nonundocount = 0; | |
1751 | ||
294d643a RS |
1752 | if (! NILP (Vpost_command_hook)) |
1753 | /* Put this before calling adjust_point_for_property | |
1754 | so it will only get called once in any case. */ | |
1755 | goto directly_done; | |
1756 | ||
7ee32cda GM |
1757 | /* VALUE == 1 when AFTER-CHANGE functions are |
1758 | installed which is the case most of the time | |
1759 | because FONT-LOCK installs one. */ | |
1760 | if (!lose && !value) | |
e35b6123 | 1761 | direct_output_for_insert (c); |
284f4730 JB |
1762 | goto directly_done; |
1763 | } | |
1764 | } | |
1765 | ||
1766 | /* Here for a command that isn't executed directly */ | |
1767 | ||
0af912f0 | 1768 | { |
7ee32cda | 1769 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1770 | int scount = SPECPDL_INDEX (); |
1771 | ||
1772 | if (display_hourglass_p | |
ce0d2858 | 1773 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1774 | { |
1775 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1776 | start_hourglass (); | |
1777 | } | |
7ee32cda GM |
1778 | #endif |
1779 | ||
0af912f0 JD |
1780 | nonundocount = 0; |
1781 | if (NILP (current_kboard->Vprefix_arg)) | |
1782 | Fundo_boundary (); | |
1783 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 GM |
1784 | |
1785 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1786 | /* Do not check display_hourglass_p here, because |
1787 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1788 | hourglass cursor anyway. |
1789 | But don't cancel the hourglass within a macro | |
1790 | just because a command in the macro finishes. */ | |
ce0d2858 | 1791 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1792 | unbind_to (scount, Qnil); |
d0c48478 | 1793 | #endif |
0af912f0 | 1794 | } |
284f4730 | 1795 | } |
a764a753 | 1796 | directly_done: ; |
75045dcb | 1797 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1798 | |
84ee6048 RS |
1799 | /* Note that the value cell will never directly contain nil |
1800 | if the symbol is a local variable. */ | |
1801 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1802 | safe_run_hooks (Qpost_command_hook); | |
1803 | ||
8f12e41d GM |
1804 | /* If displaying a message, resize the echo area window to fit |
1805 | that message's size exactly. */ | |
1806 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1807 | resize_echo_area_exactly (); |
8f12e41d | 1808 | |
84ee6048 RS |
1809 | if (!NILP (Vdeferred_action_list)) |
1810 | safe_run_hooks (Qdeferred_action_function); | |
1811 | ||
284f4730 | 1812 | /* If there is a prefix argument, |
6c7178b9 KH |
1813 | 1) We don't want Vlast_command to be ``universal-argument'' |
1814 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1815 | 2) we want to leave echoing on so that the prefix will be |
1816 | echoed as part of this key sequence, so don't call | |
1817 | cancel_echoing, and | |
1818 | 3) we want to leave this_command_key_count non-zero, so that | |
1819 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1820 | not echo it a second time. |
1821 | ||
1822 | If the command didn't actually create a prefix arg, | |
1823 | but is merely a frame event that is transparent to prefix args, | |
1824 | then the above doesn't apply. */ | |
1825 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1826 | { |
d5eecefb RS |
1827 | current_kboard->Vlast_command = Vthis_command; |
1828 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1829 | cancel_echoing (); |
1830 | this_command_key_count = 0; | |
63020c46 | 1831 | this_command_key_count_reset = 0; |
6321824f | 1832 | this_single_command_key_start = 0; |
284f4730 | 1833 | } |
86e5706b | 1834 | |
88ce066e | 1835 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b | 1836 | { |
f28c1bd9 RS |
1837 | /* Setting transient-mark-mode to `only' is a way of |
1838 | turning it on for just one command. */ | |
1839 | ||
1840 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1841 | Vtransient_mark_mode = Qnil; | |
1842 | if (EQ (Vtransient_mark_mode, Qonly)) | |
1843 | Vtransient_mark_mode = Qidentity; | |
1844 | ||
86e5706b RS |
1845 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) |
1846 | { | |
2e1a49ad SM |
1847 | /* We could also call `deactivate'mark'. */ |
1848 | if (EQ (Vtransient_mark_mode, Qlambda)) | |
1849 | Vtransient_mark_mode = Qnil; | |
1850 | else | |
1851 | { | |
1852 | current_buffer->mark_active = Qnil; | |
1853 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1854 | } | |
86e5706b RS |
1855 | } |
1856 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1857 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1858 | } | |
ff4b06d3 KH |
1859 | |
1860 | finalize: | |
adf5cb9c KH |
1861 | |
1862 | if (current_buffer == prev_buffer | |
1863 | && last_point_position != PT | |
1864 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1865 | && NILP (Vglobal_disable_point_adjustment) |
1866 | && !already_adjusted) | |
2a026b04 | 1867 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1868 | |
ff4b06d3 KH |
1869 | /* Install chars successfully executed in kbd macro. */ |
1870 | ||
d8bcf58e KH |
1871 | if (!NILP (current_kboard->defining_kbd_macro) |
1872 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1873 | finalize_kbd_macro_chars (); |
1874 | ||
c5fdd383 | 1875 | #ifdef MULTI_KBOARD |
604ccd1d | 1876 | if (!was_locked) |
1e8bd3da | 1877 | any_kboard_state (); |
ff4b06d3 | 1878 | #endif |
284f4730 JB |
1879 | } |
1880 | } | |
1c9784c9 | 1881 | |
adf5cb9c KH |
1882 | extern Lisp_Object Qcomposition, Qdisplay; |
1883 | ||
1884 | /* Adjust point to a boundary of a region that has such a property | |
1885 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1886 | `composition', `display' and `invisible' properties. |
1887 | LAST_PT is the last position of point. */ | |
adf5cb9c | 1888 | |
14e40288 SM |
1889 | extern Lisp_Object Qafter_string, Qbefore_string; |
1890 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
1891 | ||
adf5cb9c | 1892 | static void |
2a026b04 | 1893 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 1894 | int last_pt; |
2a026b04 | 1895 | int modified; |
adf5cb9c | 1896 | { |
7e16ef60 SM |
1897 | int beg, end; |
1898 | Lisp_Object val, overlay, tmp; | |
1899 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 1900 | int orig_pt = PT; |
adf5cb9c | 1901 | |
0bbdffbd SM |
1902 | /* FIXME: cycling is probably not necessary because these properties |
1903 | can't be usefully combined anyway. */ | |
7e16ef60 | 1904 | while (check_composition || check_display || check_invisible) |
adf5cb9c KH |
1905 | { |
1906 | if (check_composition | |
1907 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1908 | && get_property_and_range (PT, Qcomposition, &val, &beg, &end, Qnil) |
1909 | && COMPOSITION_VALID_P (beg, end, val) | |
1910 | && beg < PT /* && end > PT <- It's always the case. */ | |
1911 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 1912 | { |
14e40288 | 1913 | xassert (end > PT); |
7e16ef60 | 1914 | SET_PT (PT < last_pt ? beg : end); |
14e40288 | 1915 | check_display = check_invisible = 1; |
adf5cb9c KH |
1916 | } |
1917 | check_composition = 0; | |
1918 | if (check_display | |
1919 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1920 | && !NILP (val = get_char_property_and_overlay |
1921 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 1922 | && display_prop_intangible_p (val) |
7e16ef60 SM |
1923 | && (!OVERLAYP (overlay) |
1924 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
1925 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
1926 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
1927 | && (beg < PT /* && end > PT <- It's always the case. */ |
1928 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 1929 | { |
14e40288 | 1930 | xassert (end > PT); |
4ca39724 KS |
1931 | SET_PT (PT < last_pt |
1932 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
1933 | : end); | |
14e40288 | 1934 | check_composition = check_invisible = 1; |
adf5cb9c KH |
1935 | } |
1936 | check_display = 0; | |
14e40288 | 1937 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 1938 | { |
14e40288 SM |
1939 | int inv, ellipsis = 0; |
1940 | beg = end = PT; | |
1941 | ||
1942 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
1943 | while (end < ZV | |
1944 | && !NILP (val = get_char_property_and_overlay | |
1945 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
1946 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1947 | { | |
1948 | ellipsis = ellipsis || inv > 1 | |
1949 | || (OVERLAYP (overlay) | |
1950 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1951 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1952 | tmp = Fnext_single_char_property_change | |
1953 | (make_number (end), Qinvisible, Qnil, Qnil); | |
1954 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
1955 | } | |
1956 | while (beg > BEGV | |
1957 | && !NILP (val = get_char_property_and_overlay | |
1958 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
1959 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1960 | { | |
1961 | ellipsis = ellipsis || inv > 1 | |
1962 | || (OVERLAYP (overlay) | |
1963 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1964 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1965 | tmp = Fprevious_single_char_property_change | |
1966 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
1967 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
1968 | } | |
c60ee5e7 | 1969 | |
14e40288 SM |
1970 | /* Move away from the inside area. */ |
1971 | if (beg < PT && end > PT) | |
1972 | { | |
0bbdffbd SM |
1973 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
1974 | /* We haven't moved yet (so we don't need to fear | |
1975 | infinite-looping) and we were outside the range | |
1976 | before (so either end of the range still corresponds | |
1977 | to a move in the right direction): pretend we moved | |
1978 | less than we actually did, so that we still have | |
1979 | more freedom below in choosing which end of the range | |
1980 | to go to. */ | |
9465a86c | 1981 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
1982 | /* We either have moved already or the last point |
1983 | was already in the range: we don't get to choose | |
1984 | which end of the range we have to go to. */ | |
1985 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
1986 | check_composition = check_display = 1; |
1987 | } | |
a874691c MB |
1988 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
1989 | the point to something other than its argument, due to | |
1990 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 1991 | xassert (PT == beg || PT == end); |
a874691c MB |
1992 | #endif |
1993 | ||
2a026b04 KH |
1994 | /* Pretend the area doesn't exist if the buffer is not |
1995 | modified. */ | |
1996 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
1997 | { |
1998 | if (last_pt == beg && PT == end && end < ZV) | |
1999 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
2000 | else if (last_pt == end && PT == beg && beg > BEGV) | |
2001 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
2002 | else if (PT == ((PT < last_pt) ? beg : end)) | |
2003 | /* We've already moved as far as we can. Trying to go | |
2004 | to the other end would mean moving backwards and thus | |
2005 | could lead to an infinite loop. */ | |
2006 | ; | |
2007 | else if (val = get_pos_property (make_number (PT), | |
2008 | Qinvisible, Qnil), | |
2009 | TEXT_PROP_MEANS_INVISIBLE (val) | |
2010 | && (val = get_pos_property | |
2011 | (make_number (PT == beg ? end : beg), | |
2012 | Qinvisible, Qnil), | |
2013 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
2014 | (check_composition = check_display = 1, | |
2015 | SET_PT (PT == beg ? end : beg)); | |
2016 | } | |
7e16ef60 SM |
2017 | } |
2018 | check_invisible = 0; | |
adf5cb9c KH |
2019 | } |
2020 | } | |
2021 | ||
0bc3db2b RS |
2022 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
2023 | ||
2024 | static Lisp_Object | |
2025 | safe_run_hooks_1 (hook) | |
2026 | Lisp_Object hook; | |
2027 | { | |
2028 | return call1 (Vrun_hooks, Vinhibit_quit); | |
2029 | } | |
2030 | ||
2031 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
2032 | ||
2033 | static Lisp_Object | |
2034 | safe_run_hooks_error (data) | |
2035 | Lisp_Object data; | |
2036 | { | |
adec392e SM |
2037 | Lisp_Object args[3]; |
2038 | args[0] = build_string ("Error in %s: %s"); | |
2039 | args[1] = Vinhibit_quit; | |
2040 | args[2] = data; | |
2041 | Fmessage (3, args); | |
30690496 | 2042 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2043 | } |
2044 | ||
1c9784c9 KH |
2045 | /* If we get an error while running the hook, cause the hook variable |
2046 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2047 | to mysteriously evaporate. */ | |
0bc3db2b | 2048 | |
68f297c5 | 2049 | void |
1c9784c9 | 2050 | safe_run_hooks (hook) |
a98ea3f9 | 2051 | Lisp_Object hook; |
1c9784c9 | 2052 | { |
aed13378 | 2053 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2054 | specbind (Qinhibit_quit, hook); |
2055 | ||
e702932d | 2056 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2057 | |
2058 | unbind_to (count, Qnil); | |
2059 | } | |
8a9f5d3c | 2060 | |
284f4730 | 2061 | \f |
8a9f5d3c GM |
2062 | /* Number of seconds between polling for input. This is a Lisp |
2063 | variable that can be bound. */ | |
2064 | ||
31ade731 | 2065 | EMACS_INT polling_period; |
284f4730 | 2066 | |
eb8c3be9 | 2067 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2068 | |
284f4730 JB |
2069 | int poll_suppress_count; |
2070 | ||
8a9f5d3c GM |
2071 | /* Asynchronous timer for polling. */ |
2072 | ||
2073 | struct atimer *poll_timer; | |
2074 | ||
284f4730 | 2075 | |
36922b18 RS |
2076 | #ifdef POLL_FOR_INPUT |
2077 | ||
8a9f5d3c GM |
2078 | /* Poll for input, so what we catch a C-g if it comes in. This |
2079 | function is called from x_make_frame_visible, see comment | |
2080 | there. */ | |
284f4730 | 2081 | |
8a9f5d3c GM |
2082 | void |
2083 | poll_for_input_1 () | |
284f4730 | 2084 | { |
9ac0d9e0 JB |
2085 | if (interrupt_input_blocked == 0 |
2086 | && !waiting_for_input) | |
2087 | read_avail_input (0); | |
284f4730 JB |
2088 | } |
2089 | ||
8a9f5d3c GM |
2090 | /* Timer callback function for poll_timer. TIMER is equal to |
2091 | poll_timer. */ | |
2092 | ||
2093 | void | |
2094 | poll_for_input (timer) | |
2095 | struct atimer *timer; | |
2096 | { | |
2097 | if (poll_suppress_count == 0) | |
a42bf890 YM |
2098 | #ifdef SYNC_INPUT |
2099 | interrupt_input_pending = 1; | |
2100 | #else | |
8a9f5d3c | 2101 | poll_for_input_1 (); |
a42bf890 | 2102 | #endif |
8a9f5d3c GM |
2103 | } |
2104 | ||
2105 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2106 | |
2107 | /* Begin signals to poll for input, if they are appropriate. | |
2108 | This function is called unconditionally from various places. */ | |
2109 | ||
07a59269 | 2110 | void |
284f4730 JB |
2111 | start_polling () |
2112 | { | |
2113 | #ifdef POLL_FOR_INPUT | |
34f04431 | 2114 | if (read_socket_hook && !interrupt_input) |
284f4730 | 2115 | { |
8a9f5d3c GM |
2116 | /* Turn alarm handling on unconditionally. It might have |
2117 | been turned off in process.c. */ | |
2118 | turn_on_atimers (1); | |
c60ee5e7 | 2119 | |
8a9f5d3c GM |
2120 | /* If poll timer doesn't exist, are we need one with |
2121 | a different interval, start a new one. */ | |
2122 | if (poll_timer == NULL | |
2123 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2124 | { |
8a9f5d3c GM |
2125 | EMACS_TIME interval; |
2126 | ||
2127 | if (poll_timer) | |
2128 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2129 | |
8a9f5d3c GM |
2130 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2131 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2132 | poll_for_input, NULL); | |
284f4730 | 2133 | } |
8a9f5d3c GM |
2134 | |
2135 | /* Let the timer's callback function poll for input | |
2136 | if this becomes zero. */ | |
2137 | --poll_suppress_count; | |
284f4730 JB |
2138 | } |
2139 | #endif | |
2140 | } | |
2141 | ||
1d3195db RS |
2142 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2143 | ||
2144 | int | |
2145 | input_polling_used () | |
2146 | { | |
2147 | #ifdef POLL_FOR_INPUT | |
2148 | return read_socket_hook && !interrupt_input; | |
2149 | #else | |
2150 | return 0; | |
2151 | #endif | |
2152 | } | |
2153 | ||
284f4730 JB |
2154 | /* Turn off polling. */ |
2155 | ||
07a59269 | 2156 | void |
284f4730 JB |
2157 | stop_polling () |
2158 | { | |
2159 | #ifdef POLL_FOR_INPUT | |
34f04431 | 2160 | if (read_socket_hook && !interrupt_input) |
8a9f5d3c | 2161 | ++poll_suppress_count; |
284f4730 JB |
2162 | #endif |
2163 | } | |
fe8aeef3 RS |
2164 | |
2165 | /* Set the value of poll_suppress_count to COUNT | |
2166 | and start or stop polling accordingly. */ | |
2167 | ||
2168 | void | |
2169 | set_poll_suppress_count (count) | |
2170 | int count; | |
2171 | { | |
2172 | #ifdef POLL_FOR_INPUT | |
2173 | if (count == 0 && poll_suppress_count != 0) | |
2174 | { | |
2175 | poll_suppress_count = 1; | |
2176 | start_polling (); | |
2177 | } | |
2178 | else if (count != 0 && poll_suppress_count == 0) | |
2179 | { | |
2180 | stop_polling (); | |
2181 | } | |
2182 | poll_suppress_count = count; | |
2183 | #endif | |
2184 | } | |
f4eef8b4 | 2185 | |
d0a57728 RS |
2186 | /* Bind polling_period to a value at least N. |
2187 | But don't decrease it. */ | |
2188 | ||
07a59269 | 2189 | void |
f4eef8b4 RS |
2190 | bind_polling_period (n) |
2191 | int n; | |
2192 | { | |
2193 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2194 | int new = polling_period; |
2195 | ||
2196 | if (n > new) | |
2197 | new = n; | |
2198 | ||
6fe007f7 | 2199 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2200 | stop_polling (); |
d0a57728 RS |
2201 | specbind (Qpolling_period, make_number (new)); |
2202 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2203 | start_polling (); |
2204 | #endif | |
2205 | } | |
284f4730 | 2206 | \f |
6da3dd3a RS |
2207 | /* Apply the control modifier to CHARACTER. */ |
2208 | ||
faf5e407 JB |
2209 | int |
2210 | make_ctrl_char (c) | |
2211 | int c; | |
2212 | { | |
d205953b JB |
2213 | /* Save the upper bits here. */ |
2214 | int upper = c & ~0177; | |
2215 | ||
2216 | c &= 0177; | |
2217 | ||
2218 | /* Everything in the columns containing the upper-case letters | |
2219 | denotes a control character. */ | |
2220 | if (c >= 0100 && c < 0140) | |
2221 | { | |
2222 | int oc = c; | |
2223 | c &= ~0140; | |
2224 | /* Set the shift modifier for a control char | |
2225 | made from a shifted letter. But only for letters! */ | |
2226 | if (oc >= 'A' && oc <= 'Z') | |
2227 | c |= shift_modifier; | |
2228 | } | |
2229 | ||
2230 | /* The lower-case letters denote control characters too. */ | |
2231 | else if (c >= 'a' && c <= 'z') | |
2232 | c &= ~0140; | |
2233 | ||
2234 | /* Include the bits for control and shift | |
2235 | only if the basic ASCII code can't indicate them. */ | |
2236 | else if (c >= ' ') | |
2237 | c |= ctrl_modifier; | |
2238 | ||
2239 | /* Replace the high bits. */ | |
2240 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2241 | |
2242 | return c; | |
2243 | } | |
2244 | ||
bb8c4865 RS |
2245 | /* Display the help-echo property of the character after the mouse pointer. |
2246 | Either show it in the echo area, or call show-help-function to display | |
2247 | it by other means (maybe in a tooltip). | |
d4e68eea | 2248 | |
bb8c4865 RS |
2249 | If HELP is nil, that means clear the previous help echo. |
2250 | ||
2251 | If HELP is a string, display that string. If HELP is a function, | |
2252 | call it with OBJECT and POS as arguments; the function should | |
2253 | return a help string or nil for none. For all other types of HELP, | |
2254 | evaluate it to obtain a string. | |
8dfd92c9 | 2255 | |
2190735a GM |
2256 | WINDOW is the window in which the help was generated, if any. |
2257 | It is nil if not in a window. | |
2258 | ||
5b2ec2d0 GM |
2259 | If OBJECT is a buffer, POS is the position in the buffer where the |
2260 | `help-echo' text property was found. | |
2261 | ||
2262 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2263 | and POS is the position in the overlay's buffer under the mouse. | |
2264 | ||
2265 | If OBJECT is a string (an overlay string or a string displayed with | |
2266 | the `display' property). POS is the position in that string under | |
2267 | the mouse. | |
d4e68eea | 2268 | |
27fd22dc | 2269 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2270 | echo overwrites a keystroke echo currently displayed in the echo |
2271 | area. | |
2272 | ||
8dfd92c9 GM |
2273 | Note: this function may only be called with HELP nil or a string |
2274 | from X code running asynchronously. */ | |
d4e68eea | 2275 | |
31f84d03 | 2276 | void |
2190735a GM |
2277 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2278 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2279 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2280 | { |
8dfd92c9 | 2281 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2282 | { |
8dfd92c9 GM |
2283 | if (FUNCTIONP (help)) |
2284 | { | |
2190735a | 2285 | Lisp_Object args[4]; |
8dfd92c9 | 2286 | args[0] = help; |
2190735a GM |
2287 | args[1] = window; |
2288 | args[2] = object; | |
2289 | args[3] = pos; | |
1db0076e | 2290 | help = safe_call (4, args); |
8dfd92c9 GM |
2291 | } |
2292 | else | |
1db0076e | 2293 | help = safe_eval (help); |
c60ee5e7 | 2294 | |
8dfd92c9 | 2295 | if (!STRINGP (help)) |
d4e68eea | 2296 | return; |
31f84d03 SM |
2297 | } |
2298 | ||
c22237f7 KS |
2299 | #ifdef HAVE_MOUSE |
2300 | if (!noninteractive && STRINGP (help)) | |
2301 | help = call1 (Qmouse_fixup_help_message, help); | |
2302 | #endif | |
2303 | ||
8dfd92c9 | 2304 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2305 | { |
2306 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2307 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2308 | else if (/* Don't overwrite minibuffer contents. */ |
2309 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2310 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2311 | && (NILP (echo_message_buffer) |
2312 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2313 | /* Don't overwrite a prompt. */ |
2314 | && !cursor_in_echo_area) | |
2315 | { | |
8dfd92c9 | 2316 | if (STRINGP (help)) |
d4e68eea | 2317 | { |
331379bf | 2318 | int count = SPECPDL_INDEX (); |
f0c1cc56 GM |
2319 | |
2320 | if (!help_echo_showing_p) | |
2321 | Vpre_help_message = current_message (); | |
c60ee5e7 | 2322 | |
d4e68eea | 2323 | specbind (Qmessage_truncate_lines, Qt); |
d5db4077 | 2324 | message3_nolog (help, SBYTES (help), |
8dfd92c9 | 2325 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2326 | unbind_to (count, Qnil); |
2327 | } | |
f0c1cc56 GM |
2328 | else if (STRINGP (Vpre_help_message)) |
2329 | { | |
2330 | message3_nolog (Vpre_help_message, | |
d5db4077 | 2331 | SBYTES (Vpre_help_message), |
f0c1cc56 GM |
2332 | STRING_MULTIBYTE (Vpre_help_message)); |
2333 | Vpre_help_message = Qnil; | |
2334 | } | |
d4e68eea | 2335 | else |
f0c1cc56 | 2336 | message (0); |
d4e68eea | 2337 | } |
c60ee5e7 | 2338 | |
5295a500 | 2339 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2340 | } |
31f84d03 SM |
2341 | } |
2342 | ||
faf5e407 JB |
2343 | |
2344 | \f | |
284f4730 JB |
2345 | /* Input of single characters from keyboard */ |
2346 | ||
2347 | Lisp_Object print_help (); | |
2348 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2349 | static void record_char (); |
284f4730 | 2350 | |
c5fdd383 KH |
2351 | #ifdef MULTI_KBOARD |
2352 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2353 | #endif |
beecf6a1 | 2354 | |
184c3d81 RS |
2355 | #define STOP_POLLING \ |
2356 | do { if (! polling_stopped_here) stop_polling (); \ | |
2357 | polling_stopped_here = 1; } while (0) | |
2358 | ||
2359 | #define RESUME_POLLING \ | |
2360 | do { if (polling_stopped_here) start_polling (); \ | |
2361 | polling_stopped_here = 0; } while (0) | |
2362 | ||
284f4730 JB |
2363 | /* read a character from the keyboard; call the redisplay if needed */ |
2364 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2365 | -1 means do not do redisplay, but do do autosaving. | |
2366 | 1 means do both. */ | |
2367 | ||
7d6de002 RS |
2368 | /* The arguments MAPS and NMAPS are for menu prompting. |
2369 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2370 | ||
2371 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2372 | the first event of a key sequence (or not reading a key sequence). |
2373 | If PREV_EVENT is t, that is a "magic" value that says | |
2374 | not to run input methods, but in other respects to act as if | |
2375 | not reading a key sequence. | |
7d6de002 | 2376 | |
83d68044 | 2377 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2378 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2379 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2380 | |
2381 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2382 | |
284f4730 | 2383 | Lisp_Object |
7d6de002 | 2384 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2385 | int commandflag; |
7d6de002 RS |
2386 | int nmaps; |
2387 | Lisp_Object *maps; | |
2388 | Lisp_Object prev_event; | |
2389 | int *used_mouse_menu; | |
284f4730 | 2390 | { |
8c907a56 | 2391 | volatile Lisp_Object c; |
284f4730 | 2392 | int count; |
410d4de9 | 2393 | jmp_buf local_getcjmp; |
284f4730 | 2394 | jmp_buf save_jump; |
8c907a56 | 2395 | volatile int key_already_recorded = 0; |
017c7cb6 | 2396 | Lisp_Object tem, save; |
8c907a56 GM |
2397 | volatile Lisp_Object previous_echo_area_message; |
2398 | volatile Lisp_Object also_record; | |
2399 | volatile int reread; | |
d5eecefb | 2400 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2401 | int polling_stopped_here = 0; |
7c3bc944 | 2402 | |
e4fe371d | 2403 | also_record = Qnil; |
284f4730 | 2404 | |
22b94eeb | 2405 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2406 | before_command_key_count = this_command_key_count; |
2407 | before_command_echo_length = echo_length (); | |
22b94eeb | 2408 | #endif |
ef6661f7 | 2409 | c = Qnil; |
7ee32cda | 2410 | previous_echo_area_message = Qnil; |
71918b75 | 2411 | |
7ee32cda | 2412 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2413 | |
7f07d5ca RS |
2414 | retry: |
2415 | ||
7d18f9ae RS |
2416 | reread = 0; |
2417 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2418 | { |
7539e11f | 2419 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2420 | Vunread_post_input_method_events |
7539e11f | 2421 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2422 | |
2479e91e RS |
2423 | /* Undo what read_char_x_menu_prompt did when it unread |
2424 | additional keys returned by Fx_popup_menu. */ | |
2425 | if (CONSP (c) | |
7539e11f KR |
2426 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2427 | && NILP (XCDR (c))) | |
2428 | c = XCAR (c); | |
2479e91e | 2429 | |
7d18f9ae RS |
2430 | reread = 1; |
2431 | goto reread_first; | |
284f4730 JB |
2432 | } |
2433 | ||
86e5706b RS |
2434 | if (unread_command_char != -1) |
2435 | { | |
18cd2eeb | 2436 | XSETINT (c, unread_command_char); |
86e5706b RS |
2437 | unread_command_char = -1; |
2438 | ||
7d18f9ae RS |
2439 | reread = 1; |
2440 | goto reread_first; | |
2441 | } | |
2442 | ||
2443 | if (CONSP (Vunread_command_events)) | |
2444 | { | |
7539e11f KR |
2445 | c = XCAR (Vunread_command_events); |
2446 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2447 | |
2448 | /* Undo what read_char_x_menu_prompt did when it unread | |
2449 | additional keys returned by Fx_popup_menu. */ | |
2450 | if (CONSP (c) | |
f4e05d97 GM |
2451 | && EQ (XCDR (c), Qdisabled) |
2452 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2453 | c = XCAR (c); |
c60ee5e7 | 2454 | |
d17e49a8 GM |
2455 | /* If the queued event is something that used the mouse, |
2456 | set used_mouse_menu accordingly. */ | |
2457 | if (used_mouse_menu | |
2458 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2459 | *used_mouse_menu = 1; | |
c60ee5e7 | 2460 | |
7d18f9ae RS |
2461 | reread = 1; |
2462 | goto reread_for_input_method; | |
2463 | } | |
2464 | ||
2465 | if (CONSP (Vunread_input_method_events)) | |
2466 | { | |
7539e11f KR |
2467 | c = XCAR (Vunread_input_method_events); |
2468 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2469 | |
2470 | /* Undo what read_char_x_menu_prompt did when it unread | |
2471 | additional keys returned by Fx_popup_menu. */ | |
2472 | if (CONSP (c) | |
7539e11f KR |
2473 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2474 | && NILP (XCDR (c))) | |
2475 | c = XCAR (c); | |
7d18f9ae RS |
2476 | reread = 1; |
2477 | goto reread_for_input_method; | |
86e5706b RS |
2478 | } |
2479 | ||
63020c46 RS |
2480 | this_command_key_count_reset = 0; |
2481 | ||
ce0d2858 | 2482 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2483 | { |
fce33686 JB |
2484 | /* We set this to Qmacro; since that's not a frame, nobody will |
2485 | try to switch frames on us, and the selected window will | |
2486 | remain unchanged. | |
2487 | ||
2488 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2489 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2490 | real event came from. Normally, a switch-frame event selects |
2491 | internal_last_event_frame after each command is read, but | |
2492 | events read from a macro should never cause a new frame to be | |
2493 | selected. */ | |
4c52b668 | 2494 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2495 | |
663258f2 JB |
2496 | /* Exit the macro if we are at the end. |
2497 | Also, some things replace the macro with t | |
2498 | to force an early exit. */ | |
ce0d2858 | 2499 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2500 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2501 | { |
18cd2eeb | 2502 | XSETINT (c, -1); |
184c3d81 | 2503 | goto exit; |
284f4730 | 2504 | } |
df0f2ba1 | 2505 | |
649d952d | 2506 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2507 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2508 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2509 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2510 | |
649d952d | 2511 | executing_kbd_macro_index++; |
284f4730 JB |
2512 | |
2513 | goto from_macro; | |
2514 | } | |
2515 | ||
cd21b839 JB |
2516 | if (!NILP (unread_switch_frame)) |
2517 | { | |
2518 | c = unread_switch_frame; | |
2519 | unread_switch_frame = Qnil; | |
2520 | ||
2521 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2522 | again, so we do not set `reread'. */ |
f4255cd1 | 2523 | goto reread_first; |
cd21b839 JB |
2524 | } |
2525 | ||
adc1d5c8 | 2526 | /* if redisplay was requested */ |
6e4e64a8 RS |
2527 | if (commandflag >= 0) |
2528 | { | |
adc1d5c8 RS |
2529 | /* If there is pending input, process any events which are not |
2530 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2531 | if (input_pending |
2532 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2533 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2534 | |
adc1d5c8 RS |
2535 | /* Redisplay if no pending input. */ |
2536 | while (!input_pending) | |
2537 | { | |
5295a500 | 2538 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2539 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2540 | else |
2541 | redisplay (); | |
adc1d5c8 RS |
2542 | |
2543 | if (!input_pending) | |
2544 | /* Normal case: no input arrived during redisplay. */ | |
2545 | break; | |
2546 | ||
2547 | /* Input arrived and pre-empted redisplay. | |
2548 | Process any events which are not user-visible. */ | |
2549 | swallow_events (0); | |
2550 | /* If that cleared input_pending, try again to redisplay. */ | |
2551 | } | |
6e4e64a8 | 2552 | } |
e9bf89a0 | 2553 | |
59a84f8e | 2554 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2555 | |
59a84f8e GM |
2556 | The code in 20.x for the condition was |
2557 | ||
2558 | 1. echo_area_glyphs && *echo_area_glyphs | |
2559 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2560 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2561 | ||
2562 | (1) means there's a current message displayed | |
c60ee5e7 | 2563 | |
59a84f8e GM |
2564 | (2) means it's not the message from echoing from the current |
2565 | kboard. | |
c60ee5e7 | 2566 | |
59a84f8e GM |
2567 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2568 | is set to a non-null value. This is done in read_char and it is | |
2569 | set to echo_area_glyphs after a call to echo_char. That means | |
2570 | ok_to_echo_at_next_pause is either null or | |
2571 | current_kboard->echobuf with the appropriate current_kboard at | |
2572 | that time. | |
2573 | ||
2574 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2575 | must be either null, or the current message isn't from echoing at | |
2576 | all, or it's from echoing from a different kboard than the | |
2577 | current one. */ | |
c60ee5e7 | 2578 | |
27fd22dc | 2579 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2580 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2581 | && (/* And it's either not from echoing. */ |
2582 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2583 | /* Or it's an echo from a different kboard. */ | |
2584 | || echo_kboard != current_kboard | |
2585 | /* Or we explicitly allow overwriting whatever there is. */ | |
2586 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2587 | cancel_echoing (); |
410d4de9 | 2588 | else |
410d4de9 | 2589 | echo_dash (); |
c60ee5e7 | 2590 | |
410d4de9 RS |
2591 | /* Try reading a character via menu prompting in the minibuf. |
2592 | Try this before the sit-for, because the sit-for | |
2593 | would do the wrong thing if we are supposed to do | |
2594 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2595 | after a mouse event so don't try a minibuf menu. */ | |
2596 | c = Qnil; | |
2597 | if (nmaps > 0 && INTERACTIVE | |
2598 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2599 | /* Don't bring up a menu if we already have another event. */ | |
2600 | && NILP (Vunread_command_events) | |
2601 | && unread_command_char < 0 | |
4ec4ed6a | 2602 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2603 | { |
2604 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2605 | if (! NILP (c)) | |
2606 | { | |
2607 | key_already_recorded = 1; | |
2608 | goto non_reread_1; | |
2609 | } | |
2610 | } | |
284f4730 | 2611 | |
410d4de9 RS |
2612 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2613 | We will do that below, temporarily for short sections of code, | |
2614 | when appropriate. local_getcjmp must be in effect | |
2615 | around any call to sit_for or kbd_buffer_get_event; | |
2616 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2617 | |
410d4de9 | 2618 | if (_setjmp (local_getcjmp)) |
284f4730 | 2619 | { |
dfbfad25 RS |
2620 | /* We must have saved the outer value of getcjmp here, |
2621 | so restore it now. */ | |
2622 | restore_getcjmp (save_jump); | |
18cd2eeb | 2623 | XSETINT (c, quit_char); |
788f89eb | 2624 | internal_last_event_frame = selected_frame; |
4c52b668 | 2625 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2626 | /* If we report the quit char as an event, |
2627 | don't do so more than once. */ | |
2628 | if (!NILP (Vinhibit_quit)) | |
2629 | Vquit_flag = Qnil; | |
284f4730 | 2630 | |
c5fdd383 | 2631 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2632 | { |
788f89eb | 2633 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2634 | if (kb != current_kboard) |
df0f2ba1 | 2635 | { |
f3fbd155 | 2636 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2637 | /* We shouldn't get here if we were in single-kboard mode! */ |
2638 | if (single_kboard) | |
df0f2ba1 | 2639 | abort (); |
f3fbd155 KR |
2640 | if (CONSP (link)) |
2641 | { | |
2642 | while (CONSP (XCDR (link))) | |
2643 | link = XCDR (link); | |
2644 | if (!NILP (XCDR (link))) | |
2645 | abort (); | |
2646 | } | |
2647 | if (!CONSP (link)) | |
2648 | kb->kbd_queue = Fcons (c, Qnil); | |
2649 | else | |
2650 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2651 | kb->kbd_queue_has_data = 1; |
2652 | current_kboard = kb; | |
ef6661f7 RS |
2653 | /* This is going to exit from read_char |
2654 | so we had better get rid of this frame's stuff. */ | |
2655 | UNGCPRO; | |
c5fdd383 | 2656 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2657 | } |
2658 | } | |
2659 | #endif | |
284f4730 JB |
2660 | goto non_reread; |
2661 | } | |
2662 | ||
d9d4c147 KH |
2663 | timer_start_idle (); |
2664 | ||
284f4730 JB |
2665 | /* If in middle of key sequence and minibuffer not active, |
2666 | start echoing if enough time elapses. */ | |
410d4de9 | 2667 | |
c60ee5e7 | 2668 | if (minibuf_level == 0 |
7ee32cda | 2669 | && !current_kboard->immediate_echo |
6c6083a9 | 2670 | && this_command_key_count > 0 |
27203ead | 2671 | && ! noninteractive |
f2647d04 DL |
2672 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2673 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2674 | && (/* No message. */ |
2675 | NILP (echo_area_buffer[0]) | |
2676 | /* Or empty message. */ | |
2677 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2678 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2679 | /* Or already echoing from same kboard. */ | |
2680 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2681 | /* Or not echoing before and echoing allowed. */ | |
2682 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2683 | { |
2684 | Lisp_Object tem0; | |
c60ee5e7 | 2685 | |
7d6de002 RS |
2686 | /* After a mouse event, start echoing right away. |
2687 | This is because we are probably about to display a menu, | |
2688 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2689 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2690 | echo_now (); |
7d6de002 RS |
2691 | else |
2692 | { | |
39aab679 DL |
2693 | int sec, usec; |
2694 | double duration = extract_float (Vecho_keystrokes); | |
2695 | sec = (int) duration; | |
15fa88ab | 2696 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2697 | save_getcjmp (save_jump); |
2698 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2699 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2700 | restore_getcjmp (save_jump); |
303b5b3f RS |
2701 | if (EQ (tem0, Qt) |
2702 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2703 | echo_now (); |
7d6de002 | 2704 | } |
284f4730 JB |
2705 | } |
2706 | ||
410d4de9 | 2707 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2708 | |
2709 | if (commandflag != 0 | |
2710 | && auto_save_interval > 0 | |
c43b1734 | 2711 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2712 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2713 | { |
284f4730 | 2714 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2715 | /* Hooks can actually change some buffers in auto save. */ |
2716 | redisplay (); | |
284f4730 JB |
2717 | } |
2718 | ||
8150596a | 2719 | /* Try reading using an X menu. |
24597608 RS |
2720 | This is never confused with reading using the minibuf |
2721 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2722 | does not pass on any keymaps. */ | |
410d4de9 | 2723 | |
24597608 | 2724 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2725 | && !NILP (prev_event) |
2726 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2727 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2728 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2729 | /* Don't bring up a menu if we already have another event. */ |
2730 | && NILP (Vunread_command_events) | |
b8556aee | 2731 | && unread_command_char < 0) |
8eb4d8ef RS |
2732 | { |
2733 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2734 | ||
2735 | /* Now that we have read an event, Emacs is not idle. */ | |
2736 | timer_stop_idle (); | |
2737 | ||
184c3d81 | 2738 | goto exit; |
8eb4d8ef | 2739 | } |
7d6de002 | 2740 | |
410d4de9 RS |
2741 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2742 | ||
26c1639e | 2743 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2744 | { |
2745 | int delay_level, buffer_size; | |
2746 | ||
410d4de9 RS |
2747 | /* Slow down auto saves logarithmically in size of current buffer, |
2748 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2749 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2750 | last_non_minibuf_size = Z - BEG; | |
2751 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2752 | delay_level = 0; | |
2753 | while (buffer_size > 64) | |
2754 | delay_level++, buffer_size -= buffer_size >> 2; | |
2755 | if (delay_level < 4) delay_level = 4; | |
2756 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2757 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2758 | ||
2759 | /* Auto save if enough time goes by without input. */ | |
2760 | if (commandflag != 0 | |
c43b1734 | 2761 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2762 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2763 | && XINT (Vauto_save_timeout) > 0) |
2764 | { | |
2765 | Lisp_Object tem0; | |
410d4de9 RS |
2766 | |
2767 | save_getcjmp (save_jump); | |
2768 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2769 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2770 | 0, 1, 1, 0); |
410d4de9 RS |
2771 | restore_getcjmp (save_jump); |
2772 | ||
303b5b3f RS |
2773 | if (EQ (tem0, Qt) |
2774 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2775 | { |
7d6de002 | 2776 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2777 | |
2778 | /* If we have auto-saved and there is still no input | |
2779 | available, garbage collect if there has been enough | |
2780 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2781 | if (!detect_input_pending_run_timers (0) |
c8e16a02 | 2782 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2783 | Fgarbage_collect (); |
410d4de9 | 2784 | |
ef8fd672 | 2785 | redisplay (); |
7d6de002 RS |
2786 | } |
2787 | } | |
2788 | } | |
284f4730 | 2789 | |
303b5b3f RS |
2790 | /* If this has become non-nil here, it has been set by a timer |
2791 | or sentinel or filter. */ | |
2792 | if (CONSP (Vunread_command_events)) | |
2793 | { | |
7539e11f KR |
2794 | c = XCAR (Vunread_command_events); |
2795 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2796 | } |
2797 | ||
410d4de9 RS |
2798 | /* Read something from current KBOARD's side queue, if possible. */ |
2799 | ||
beecf6a1 | 2800 | if (NILP (c)) |
1e12dd87 | 2801 | { |
c5fdd383 | 2802 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2803 | { |
c5fdd383 | 2804 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2805 | abort (); |
7539e11f | 2806 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2807 | current_kboard->kbd_queue |
7539e11f | 2808 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2809 | if (NILP (current_kboard->kbd_queue)) |
2810 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2811 | input_pending = readable_events (0); |
4c52b668 KH |
2812 | if (EVENT_HAS_PARAMETERS (c) |
2813 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2814 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2815 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2816 | } |
1e8bd3da RS |
2817 | } |
2818 | ||
c5fdd383 | 2819 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2820 | /* If current_kboard's side queue is empty check the other kboards. |
2821 | If one of them has data that we have not yet seen here, | |
2822 | switch to it and process the data waiting for it. | |
2823 | ||
2824 | Note: if the events queued up for another kboard | |
2825 | have already been seen here, and therefore are not a complete command, | |
2826 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2827 | That's to avoid an infinite loop switching between kboards here. */ | |
2828 | if (NILP (c) && !single_kboard) | |
2829 | { | |
2830 | KBOARD *kb; | |
2831 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2832 | if (kb->kbd_queue_has_data) | |
2833 | { | |
2834 | current_kboard = kb; | |
ef6661f7 RS |
2835 | /* This is going to exit from read_char |
2836 | so we had better get rid of this frame's stuff. */ | |
2837 | UNGCPRO; | |
1e8bd3da RS |
2838 | longjmp (wrong_kboard_jmpbuf, 1); |
2839 | } | |
2840 | } | |
df0f2ba1 KH |
2841 | #endif |
2842 | ||
410d4de9 RS |
2843 | wrong_kboard: |
2844 | ||
184c3d81 | 2845 | STOP_POLLING; |
410d4de9 | 2846 | |
1e8bd3da RS |
2847 | /* Finally, we read from the main queue, |
2848 | and if that gives us something we can't use yet, we put it on the | |
2849 | appropriate side queue and try again. */ | |
410d4de9 | 2850 | |
1e8bd3da RS |
2851 | if (NILP (c)) |
2852 | { | |
2853 | KBOARD *kb; | |
2854 | ||
1e8bd3da | 2855 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2856 | save_getcjmp (save_jump); |
2857 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2858 | timer_start_idle (); |
83d68044 | 2859 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2860 | restore_getcjmp (save_jump); |
2861 | ||
c5fdd383 | 2862 | #ifdef MULTI_KBOARD |
410d4de9 | 2863 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2864 | { |
f3fbd155 KR |
2865 | Lisp_Object link = kb->kbd_queue; |
2866 | if (CONSP (link)) | |
2867 | { | |
2868 | while (CONSP (XCDR (link))) | |
2869 | link = XCDR (link); | |
2870 | if (!NILP (XCDR (link))) | |
2871 | abort (); | |
2872 | } | |
2873 | if (!CONSP (link)) | |
2874 | kb->kbd_queue = Fcons (c, Qnil); | |
2875 | else | |
2876 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2877 | kb->kbd_queue_has_data = 1; |
46b84797 | 2878 | c = Qnil; |
1e8bd3da RS |
2879 | if (single_kboard) |
2880 | goto wrong_kboard; | |
2881 | current_kboard = kb; | |
ef6661f7 RS |
2882 | /* This is going to exit from read_char |
2883 | so we had better get rid of this frame's stuff. */ | |
2884 | UNGCPRO; | |
1e8bd3da | 2885 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2886 | } |
1e8bd3da | 2887 | #endif |
beecf6a1 | 2888 | } |
1e8bd3da | 2889 | |
284f4730 | 2890 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2891 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2892 | Fkill_emacs (make_number (1)); |
2893 | ||
8c18cbfb | 2894 | if (INTEGERP (c)) |
80645119 JB |
2895 | { |
2896 | /* Add in any extra modifiers, where appropriate. */ | |
2897 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2898 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2899 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2900 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2901 | |
2902 | /* Transfer any other modifier bits directly from | |
2903 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2904 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2905 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2906 | } |
9fa4395d | 2907 | |
284f4730 JB |
2908 | non_reread: |
2909 | ||
2fb9049e | 2910 | timer_stop_idle (); |
184c3d81 | 2911 | RESUME_POLLING; |
284f4730 | 2912 | |
410d4de9 RS |
2913 | if (NILP (c)) |
2914 | { | |
2915 | if (commandflag >= 0 | |
4ec4ed6a | 2916 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2917 | redisplay (); |
2918 | ||
2919 | goto wrong_kboard; | |
2920 | } | |
2921 | ||
2922 | non_reread_1: | |
2923 | ||
dfd11da7 | 2924 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2925 | so don't show them to the user. |
2926 | Also, don't record a key if we already did. */ | |
2927 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 2928 | goto exit; |
a1341f75 | 2929 | |
7f07d5ca RS |
2930 | /* Process special events within read_char |
2931 | and loop around to read another event. */ | |
017c7cb6 RS |
2932 | save = Vquit_flag; |
2933 | Vquit_flag = Qnil; | |
02067692 | 2934 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2935 | Vquit_flag = save; |
7f07d5ca RS |
2936 | |
2937 | if (!NILP (tem)) | |
2938 | { | |
ba8dfba8 RS |
2939 | int was_locked = single_kboard; |
2940 | ||
7f07d5ca | 2941 | last_input_char = c; |
158f7532 | 2942 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2943 | |
5d12f14d EZ |
2944 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2945 | /* We stopped being idle for this event; undo that. This | |
2946 | prevents automatic window selection (under | |
0b9a1d3d | 2947 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 2948 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 2949 | timer_resume_idle (); |
5d12f14d | 2950 | |
ba8dfba8 RS |
2951 | /* Resume allowing input from any kboard, if that was true before. */ |
2952 | if (!was_locked) | |
2953 | any_kboard_state (); | |
2954 | ||
7f07d5ca RS |
2955 | goto retry; |
2956 | } | |
2957 | ||
284f4730 | 2958 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2959 | if (INTEGERP (c)) |
284f4730 JB |
2960 | { |
2961 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2962 | if (XINT (c) == -1) |
184c3d81 | 2963 | goto exit; |
284f4730 | 2964 | |
301738ed | 2965 | if ((STRINGP (Vkeyboard_translate_table) |
d5db4077 | 2966 | && SCHARS (Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) |
301738ed RS |
2967 | || (VECTORP (Vkeyboard_translate_table) |
2968 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2969 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
5e3cb80d | 2970 | && CHAR_VALID_P (XINT (c), 0))) |
f9414d62 RS |
2971 | { |
2972 | Lisp_Object d; | |
2973 | d = Faref (Vkeyboard_translate_table, c); | |
2974 | /* nil in keyboard-translate-table means no translation. */ | |
2975 | if (!NILP (d)) | |
2976 | c = d; | |
2977 | } | |
284f4730 JB |
2978 | } |
2979 | ||
e4fe371d RS |
2980 | /* If this event is a mouse click in the menu bar, |
2981 | return just menu-bar for now. Modify the mouse click event | |
2982 | so we won't do this twice, then queue it up. */ | |
2983 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2984 | && CONSP (XCDR (c)) |
e4fe371d | 2985 | && CONSP (EVENT_START (c)) |
7539e11f | 2986 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2987 | { |
e4fe371d | 2988 | Lisp_Object posn; |
284f4730 | 2989 | |
eee5863b | 2990 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
2991 | /* Handle menu-bar events: |
2992 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2993 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2994 | { |
2995 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
eee5863b | 2996 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2997 | |
e4fe371d RS |
2998 | also_record = c; |
2999 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
3000 | c = posn; | |
284f4730 | 3001 | } |
284f4730 JB |
3002 | } |
3003 | ||
7d18f9ae RS |
3004 | /* Store these characters into recent_keys, the dribble file if any, |
3005 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
3006 | record_char (c); |
3007 | if (! NILP (also_record)) | |
3008 | record_char (also_record); | |
51172b6d | 3009 | |
d5eecefb RS |
3010 | /* Wipe the echo area. |
3011 | But first, if we are about to use an input method, | |
3012 | save the echo area contents for it to refer to. */ | |
3013 | if (INTEGERP (c) | |
3014 | && ! NILP (Vinput_method_function) | |
3015 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
3016 | && (unsigned) XINT (c) != 127 |
3017 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
3018 | { |
3019 | previous_echo_area_message = Fcurrent_message (); | |
3020 | Vinput_method_previous_message = previous_echo_area_message; | |
3021 | } | |
d5eecefb | 3022 | |
1172eb8d GM |
3023 | /* Now wipe the echo area, except for help events which do their |
3024 | own stuff with the echo area. */ | |
4d2e9f95 GM |
3025 | if (!CONSP (c) |
3026 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
3027 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
3028 | { |
3029 | if (!NILP (echo_area_buffer[0])) | |
3030 | safe_run_hooks (Qecho_area_clear_hook); | |
3031 | clear_message (1, 0); | |
3032 | } | |
d5eecefb | 3033 | |
7d18f9ae | 3034 | reread_for_input_method: |
284f4730 | 3035 | from_macro: |
7d18f9ae | 3036 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
3037 | if (INTEGERP (c) |
3038 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
3039 | /* Don't run the input method within a key sequence, |
3040 | after the first event of the key sequence. */ | |
3041 | && NILP (prev_event) | |
d5eecefb | 3042 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
3043 | && (unsigned) XINT (c) != 127 |
3044 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3045 | { |
c60ee5e7 | 3046 | Lisp_Object keys; |
63020c46 | 3047 | int key_count, key_count_reset; |
d5eecefb | 3048 | struct gcpro gcpro1; |
aed13378 | 3049 | int count = SPECPDL_INDEX (); |
d5eecefb | 3050 | |
6e5742a0 RS |
3051 | /* Save the echo status. */ |
3052 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3053 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 3054 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
3055 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3056 | ||
22b94eeb | 3057 | #if 0 |
6e5742a0 RS |
3058 | if (before_command_restore_flag) |
3059 | { | |
3060 | this_command_key_count = before_command_key_count_1; | |
3061 | if (this_command_key_count < this_single_command_key_start) | |
3062 | this_single_command_key_start = this_command_key_count; | |
3063 | echo_truncate (before_command_echo_length_1); | |
3064 | before_command_restore_flag = 0; | |
3065 | } | |
22b94eeb | 3066 | #endif |
6e5742a0 RS |
3067 | |
3068 | /* Save the this_command_keys status. */ | |
3069 | key_count = this_command_key_count; | |
63020c46 | 3070 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3071 | |
3072 | if (key_count > 0) | |
3073 | keys = Fcopy_sequence (this_command_keys); | |
3074 | else | |
3075 | keys = Qnil; | |
d5eecefb | 3076 | GCPRO1 (keys); |
6e5742a0 RS |
3077 | |
3078 | /* Clear out this_command_keys. */ | |
3079 | this_command_key_count = 0; | |
63020c46 | 3080 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3081 | |
3082 | /* Now wipe the echo area. */ | |
985f9f66 | 3083 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3084 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3085 | clear_message (1, 0); |
6e5742a0 RS |
3086 | echo_truncate (0); |
3087 | ||
b638f328 RS |
3088 | /* If we are not reading a key sequence, |
3089 | never use the echo area. */ | |
3090 | if (maps == 0) | |
3091 | { | |
b638f328 RS |
3092 | specbind (Qinput_method_use_echo_area, Qt); |
3093 | } | |
3094 | ||
6e5742a0 | 3095 | /* Call the input method. */ |
d5eecefb | 3096 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3097 | |
3098 | tem = unbind_to (count, tem); | |
3099 | ||
6e5742a0 RS |
3100 | /* Restore the saved echoing state |
3101 | and this_command_keys state. */ | |
3102 | this_command_key_count = key_count; | |
63020c46 | 3103 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3104 | if (key_count > 0) |
3105 | this_command_keys = keys; | |
3106 | ||
3107 | cancel_echoing (); | |
3108 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 3109 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
3110 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
3111 | if (saved_immediate_echo) | |
3112 | echo_now (); | |
3113 | ||
d5eecefb | 3114 | UNGCPRO; |
6e5742a0 | 3115 | |
d5eecefb RS |
3116 | /* The input method can return no events. */ |
3117 | if (! CONSP (tem)) | |
7d18f9ae | 3118 | { |
d5eecefb | 3119 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3120 | if (! NILP (previous_echo_area_message)) |
3121 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3122 | goto retry; |
7d18f9ae | 3123 | } |
d5eecefb | 3124 | /* It returned one event or more. */ |
7539e11f | 3125 | c = XCAR (tem); |
d5eecefb | 3126 | Vunread_post_input_method_events |
7539e11f | 3127 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3128 | } |
7c3bc944 | 3129 | |
7d18f9ae | 3130 | reread_first: |
284f4730 | 3131 | |
7ee32cda | 3132 | /* Display help if not echoing. */ |
1172eb8d | 3133 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3134 | { |
2190735a | 3135 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3136 | Lisp_Object help, object, position, window, tem; |
3137 | ||
3138 | tem = Fcdr (XCDR (c)); | |
3139 | help = Fcar (tem); | |
3140 | tem = Fcdr (tem); | |
3141 | window = Fcar (tem); | |
3142 | tem = Fcdr (tem); | |
3143 | object = Fcar (tem); | |
3144 | tem = Fcdr (tem); | |
3145 | position = Fcar (tem); | |
3146 | ||
2190735a | 3147 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3148 | |
3149 | /* We stopped being idle for this event; undo that. */ | |
5c12e63f | 3150 | timer_resume_idle (); |
7ee32cda GM |
3151 | goto retry; |
3152 | } | |
c60ee5e7 | 3153 | |
63020c46 RS |
3154 | if (! reread || this_command_key_count == 0 |
3155 | || this_command_key_count_reset) | |
e4fe371d | 3156 | { |
7d18f9ae RS |
3157 | |
3158 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3159 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3160 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3161 | && ! (EVENT_HAS_PARAMETERS (c) |
3162 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3163 | { | |
3164 | echo_char (c); | |
3165 | if (! NILP (also_record)) | |
3166 | echo_char (also_record); | |
3167 | /* Once we reread a character, echoing can happen | |
3168 | the next time we pause to read a new one. */ | |
985f9f66 | 3169 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3170 | } |
3171 | ||
3172 | /* Record this character as part of the current key. */ | |
3173 | add_command_key (c); | |
e4fe371d | 3174 | if (! NILP (also_record)) |
7d18f9ae | 3175 | add_command_key (also_record); |
e4fe371d | 3176 | } |
b8556aee | 3177 | |
284f4730 | 3178 | last_input_char = c; |
c43b1734 | 3179 | num_input_events++; |
284f4730 JB |
3180 | |
3181 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3182 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3183 | { |
3184 | Lisp_Object tem0; | |
aed13378 | 3185 | count = SPECPDL_INDEX (); |
284f4730 JB |
3186 | |
3187 | record_unwind_protect (Fset_window_configuration, | |
3188 | Fcurrent_window_configuration (Qnil)); | |
3189 | ||
3190 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3191 | if (STRINGP (tem0)) |
284f4730 JB |
3192 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3193 | ||
3194 | cancel_echoing (); | |
3cb81011 KH |
3195 | do |
3196 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3197 | while (BUFFERP (c)); |
ff11dfa1 | 3198 | /* Remove the help from the frame */ |
284f4730 | 3199 | unbind_to (count, Qnil); |
410d4de9 | 3200 | |
284f4730 JB |
3201 | redisplay (); |
3202 | if (EQ (c, make_number (040))) | |
3203 | { | |
3204 | cancel_echoing (); | |
3cb81011 KH |
3205 | do |
3206 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3207 | while (BUFFERP (c)); |
284f4730 JB |
3208 | } |
3209 | } | |
3210 | ||
184c3d81 RS |
3211 | exit: |
3212 | RESUME_POLLING; | |
7c3bc944 | 3213 | RETURN_UNGCPRO (c); |
284f4730 JB |
3214 | } |
3215 | ||
8eb4d8ef RS |
3216 | /* Record a key that came from a mouse menu. |
3217 | Record it for echoing, for this-command-keys, and so on. */ | |
3218 | ||
3219 | static void | |
3220 | record_menu_key (c) | |
3221 | Lisp_Object c; | |
3222 | { | |
3223 | /* Wipe the echo area. */ | |
985f9f66 | 3224 | clear_message (1, 0); |
8eb4d8ef RS |
3225 | |
3226 | record_char (c); | |
3227 | ||
22b94eeb | 3228 | #if 0 |
8eb4d8ef RS |
3229 | before_command_key_count = this_command_key_count; |
3230 | before_command_echo_length = echo_length (); | |
22b94eeb | 3231 | #endif |
8eb4d8ef RS |
3232 | |
3233 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3234 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3235 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3236 | { |
3237 | echo_char (c); | |
3238 | ||
3239 | /* Once we reread a character, echoing can happen | |
3240 | the next time we pause to read a new one. */ | |
3241 | ok_to_echo_at_next_pause = 0; | |
3242 | } | |
3243 | ||
3244 | /* Record this character as part of the current key. */ | |
3245 | add_command_key (c); | |
3246 | ||
3247 | /* Re-reading in the middle of a command */ | |
3248 | last_input_char = c; | |
c43b1734 | 3249 | num_input_events++; |
8eb4d8ef RS |
3250 | } |
3251 | ||
ecb7cb34 KH |
3252 | /* Return 1 if should recognize C as "the help character". */ |
3253 | ||
3254 | int | |
3255 | help_char_p (c) | |
3256 | Lisp_Object c; | |
3257 | { | |
3258 | Lisp_Object tail; | |
3259 | ||
3260 | if (EQ (c, Vhelp_char)) | |
3261 | return 1; | |
7539e11f KR |
3262 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3263 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3264 | return 1; |
3265 | return 0; | |
3266 | } | |
3267 | ||
e4fe371d RS |
3268 | /* Record the input event C in various ways. */ |
3269 | ||
3270 | static void | |
3271 | record_char (c) | |
3272 | Lisp_Object c; | |
3273 | { | |
090c68b9 | 3274 | int recorded = 0; |
52be17cc | 3275 | |
090c68b9 KS |
3276 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3277 | { | |
3278 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3279 | events, we filter out repeated help-echo events, only store the | |
3280 | first and last in a series of mouse-movement events, and don't | |
3281 | store repeated help-echo events which are only separated by | |
3282 | mouse-movement events. */ | |
3283 | ||
3284 | Lisp_Object ev1, ev2, ev3; | |
3285 | int ix1, ix2, ix3; | |
c60ee5e7 | 3286 | |
090c68b9 KS |
3287 | if ((ix1 = recent_keys_index - 1) < 0) |
3288 | ix1 = NUM_RECENT_KEYS - 1; | |
3289 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3290 | |
090c68b9 KS |
3291 | if ((ix2 = ix1 - 1) < 0) |
3292 | ix2 = NUM_RECENT_KEYS - 1; | |
3293 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3294 | |
090c68b9 KS |
3295 | if ((ix3 = ix2 - 1) < 0) |
3296 | ix3 = NUM_RECENT_KEYS - 1; | |
3297 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3298 | |
090c68b9 KS |
3299 | if (EQ (XCAR (c), Qhelp_echo)) |
3300 | { | |
3301 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3302 | message, and a different help than the previously recorded |
090c68b9 KS |
3303 | event. */ |
3304 | Lisp_Object help, last_help; | |
3305 | ||
3306 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3307 | if (!STRINGP (help)) | |
3308 | recorded = 1; | |
3309 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3310 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3311 | recorded = 1; | |
3312 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3313 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3314 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3315 | recorded = -1; | |
3316 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3317 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3318 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3319 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3320 | recorded = -2; | |
3321 | } | |
3322 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3323 | { |
090c68b9 KS |
3324 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3325 | So additional mouse movement events replace the last element. */ | |
3326 | Lisp_Object last_window, window; | |
3327 | ||
3328 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3329 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3330 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3331 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3332 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3333 | { |
090c68b9 KS |
3334 | ASET (recent_keys, ix1, c); |
3335 | recorded = 1; | |
52be17cc GM |
3336 | } |
3337 | } | |
3338 | } | |
3339 | else | |
090c68b9 KS |
3340 | store_kbd_macro_char (c); |
3341 | ||
3342 | if (!recorded) | |
e8a50785 GM |
3343 | { |
3344 | total_keys++; | |
3345 | ASET (recent_keys, recent_keys_index, c); | |
3346 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3347 | recent_keys_index = 0; | |
3348 | } | |
090c68b9 KS |
3349 | else if (recorded < 0) |
3350 | { | |
3351 | /* We need to remove one or two events from recent_keys. | |
3352 | To do this, we simply put nil at those events and move the | |
3353 | recent_keys_index backwards over those events. Usually, | |
3354 | users will never see those nil events, as they will be | |
3355 | overwritten by the command keys entered to see recent_keys | |
3356 | (e.g. C-h l). */ | |
3357 | ||
3358 | while (recorded++ < 0 && total_keys > 0) | |
3359 | { | |
3360 | if (total_keys < NUM_RECENT_KEYS) | |
3361 | total_keys--; | |
3362 | if (--recent_keys_index < 0) | |
3363 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3364 | ASET (recent_keys, recent_keys_index, Qnil); | |
3365 | } | |
3366 | } | |
3367 | ||
3368 | num_nonmacro_input_events++; | |
c60ee5e7 | 3369 | |
e4fe371d RS |
3370 | /* Write c to the dribble file. If c is a lispy event, write |
3371 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3372 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3373 | if (dribble) | |
3374 | { | |
3375 | if (INTEGERP (c)) | |
3376 | { | |
3377 | if (XUINT (c) < 0x100) | |
3378 | putc (XINT (c), dribble); | |
3379 | else | |
6de34814 | 3380 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3381 | } |
3382 | else | |
3383 | { | |
3384 | Lisp_Object dribblee; | |
3385 | ||
3386 | /* If it's a structured event, take the event header. */ | |
3387 | dribblee = EVENT_HEAD (c); | |
3388 | ||
3389 | if (SYMBOLP (dribblee)) | |
3390 | { | |
3391 | putc ('<', dribble); | |
d5db4077 KR |
3392 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3393 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3394 | dribble); |
3395 | putc ('>', dribble); | |
3396 | } | |
3397 | } | |
3398 | ||
3399 | fflush (dribble); | |
3400 | } | |
e4fe371d RS |
3401 | } |
3402 | ||
284f4730 JB |
3403 | Lisp_Object |
3404 | print_help (object) | |
3405 | Lisp_Object object; | |
3406 | { | |
622de3e9 | 3407 | struct buffer *old = current_buffer; |
284f4730 | 3408 | Fprinc (object, Qnil); |
622de3e9 KH |
3409 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3410 | call0 (intern ("help-mode")); | |
3411 | set_buffer_internal (old); | |
284f4730 JB |
3412 | return Qnil; |
3413 | } | |
3414 | ||
3415 | /* Copy out or in the info on where C-g should throw to. | |
3416 | This is used when running Lisp code from within get_char, | |
3417 | in case get_char is called recursively. | |
3418 | See read_process_output. */ | |
3419 | ||
dfcf069d | 3420 | static void |
284f4730 JB |
3421 | save_getcjmp (temp) |
3422 | jmp_buf temp; | |
3423 | { | |
3424 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3425 | } | |
3426 | ||
dfcf069d | 3427 | static void |
284f4730 JB |
3428 | restore_getcjmp (temp) |
3429 | jmp_buf temp; | |
3430 | { | |
3431 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3432 | } | |
284f4730 | 3433 | \f |
2eb6bfbe RM |
3434 | #ifdef HAVE_MOUSE |
3435 | ||
284f4730 JB |
3436 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3437 | of this function. */ | |
a9d77f1f | 3438 | |
284f4730 JB |
3439 | static Lisp_Object |
3440 | tracking_off (old_value) | |
3441 | Lisp_Object old_value; | |
3442 | { | |
71edead1 RS |
3443 | do_mouse_tracking = old_value; |
3444 | if (NILP (old_value)) | |
284f4730 | 3445 | { |
284f4730 JB |
3446 | /* Redisplay may have been preempted because there was input |
3447 | available, and it assumes it will be called again after the | |
3448 | input has been processed. If the only input available was | |
3449 | the sort that we have just disabled, then we need to call | |
3450 | redisplay. */ | |
a2d5fca0 | 3451 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) |
284f4730 | 3452 | { |
3007ebfb | 3453 | redisplay_preserve_echo_area (6); |
a2d5fca0 JD |
3454 | get_input_pending (&input_pending, |
3455 | READABLE_EVENTS_DO_TIMERS_NOW); | |
284f4730 JB |
3456 | } |
3457 | } | |
30690496 | 3458 | return Qnil; |
284f4730 JB |
3459 | } |
3460 | ||
3461 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3462 | doc: /* Evaluate BODY with mouse movement events enabled. |
3463 | Within a `track-mouse' form, mouse motion generates input events that | |
3464 | you can read with `read-event'. | |
3465 | Normally, mouse motion is ignored. | |
3466 | usage: (track-mouse BODY ...) */) | |
3467 | (args) | |
284f4730 JB |
3468 | Lisp_Object args; |
3469 | { | |
aed13378 | 3470 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3471 | Lisp_Object val; |
3472 | ||
a9d77f1f | 3473 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3474 | |
f3253854 | 3475 | do_mouse_tracking = Qt; |
df0f2ba1 | 3476 | |
284f4730 JB |
3477 | val = Fprogn (args); |
3478 | return unbind_to (count, val); | |
3479 | } | |
2eb6bfbe | 3480 | |
f3253854 KH |
3481 | /* If mouse has moved on some frame, return one of those frames. |
3482 | Return 0 otherwise. */ | |
3483 | ||
3484 | static FRAME_PTR | |
3485 | some_mouse_moved () | |
3486 | { | |
3487 | Lisp_Object tail, frame; | |
3488 | ||
3489 | FOR_EACH_FRAME (tail, frame) | |
3490 | { | |
3491 | if (XFRAME (frame)->mouse_moved) | |
3492 | return XFRAME (frame); | |
3493 | } | |
3494 | ||
3495 | return 0; | |
3496 | } | |
3497 | ||
2eb6bfbe | 3498 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3499 | \f |
3500 | /* Low level keyboard/mouse input. | |
3501 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3502 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3503 | |
3504 | /* Return true iff there are any events in the queue that read-char | |
3505 | would return. If this returns false, a read-char would block. */ | |
3506 | static int | |
a2d5fca0 JD |
3507 | readable_events (flags) |
3508 | int flags; | |
a612e298 | 3509 | { |
a2d5fca0 JD |
3510 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3511 | timer_check (1); | |
4ec4ed6a | 3512 | |
a2d5fca0 JD |
3513 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3514 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3515 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3516 | { |
354344a2 YM |
3517 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3518 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3519 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3520 | #endif | |
3521 | )) | |
20057d52 JD |
3522 | { |
3523 | struct input_event *event; | |
3524 | ||
3525 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3526 | ? kbd_fetch_ptr | |
3527 | : kbd_buffer); | |
3528 | ||
354344a2 YM |
3529 | do |
3530 | { | |
3531 | if (!( | |
3532 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3533 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3534 | #endif | |
3535 | event->kind == FOCUS_IN_EVENT) | |
3536 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3537 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3538 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3539 | && event->part == scroll_bar_handle | |
3540 | && event->modifiers == 0) | |
3541 | #endif | |
3542 | ) | |
3543 | return 1; | |
3544 | event++; | |
20057d52 JD |
3545 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3546 | event = kbd_buffer; | |
354344a2 YM |
3547 | } |
3548 | while (event != kbd_store_ptr); | |
20057d52 | 3549 | } |
354344a2 YM |
3550 | else |
3551 | return 1; | |
a0ba8995 RS |
3552 | } |
3553 | ||
beecf6a1 | 3554 | #ifdef HAVE_MOUSE |
a2d5fca0 JD |
3555 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3556 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3557 | return 1; |
3558 | #endif | |
1e8bd3da | 3559 | if (single_kboard) |
4c52b668 | 3560 | { |
c5fdd383 | 3561 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3562 | return 1; |
3563 | } | |
3564 | else | |
3565 | { | |
c5fdd383 KH |
3566 | KBOARD *kb; |
3567 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3568 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3569 | return 1; |
3570 | } | |
beecf6a1 | 3571 | return 0; |
a612e298 RS |
3572 | } |
3573 | ||
3574 | /* Set this for debugging, to have a way to get out */ | |
3575 | int stop_character; | |
284f4730 | 3576 | |
c5fdd383 KH |
3577 | #ifdef MULTI_KBOARD |
3578 | static KBOARD * | |
3579 | event_to_kboard (event) | |
5798cf15 KH |
3580 | struct input_event *event; |
3581 | { | |
3582 | Lisp_Object frame; | |
3583 | frame = event->frame_or_window; | |
3584 | if (CONSP (frame)) | |
7539e11f | 3585 | frame = XCAR (frame); |
5798cf15 KH |
3586 | else if (WINDOWP (frame)) |
3587 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3588 | ||
3589 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3590 | For now, just ignore the problem. |
3591 | Also ignore dead frames here. */ | |
3592 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3593 | return 0; |
3594 | else | |
c5fdd383 | 3595 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3596 | } |
3597 | #endif | |
3598 | ||
2a84c6da KS |
3599 | |
3600 | Lisp_Object Vthrow_on_input; | |
3601 | ||
284f4730 JB |
3602 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3603 | ||
3604 | void | |
3605 | kbd_buffer_store_event (event) | |
3606 | register struct input_event *event; | |
0fc0bac9 KS |
3607 | { |
3608 | kbd_buffer_store_event_hold (event, 0); | |
3609 | } | |
3610 | ||
3611 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3612 | ||
3613 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3614 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3615 | Else, if EVENT is a quit event, store the quit event | |
3616 | in HOLD_QUIT, and return (thus ignoring further events). | |
3617 | ||
3618 | This is used in read_avail_input to postpone the processing | |
3619 | of the quit event until all subsequent input events have been | |
3620 | parsed (and discarded). | |
3621 | */ | |
3622 | ||
3623 | void | |
3624 | kbd_buffer_store_event_hold (event, hold_quit) | |
3625 | register struct input_event *event; | |
3626 | struct input_event *hold_quit; | |
284f4730 | 3627 | { |
3b8f9651 | 3628 | if (event->kind == NO_EVENT) |
284f4730 JB |
3629 | abort (); |
3630 | ||
0fc0bac9 KS |
3631 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3632 | return; | |
3633 | ||
3b8f9651 | 3634 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3635 | { |
e9bf89a0 | 3636 | register int c = event->code & 0377; |
284f4730 | 3637 | |
faf5e407 JB |
3638 | if (event->modifiers & ctrl_modifier) |
3639 | c = make_ctrl_char (c); | |
3640 | ||
9fd7d808 RS |
3641 | c |= (event->modifiers |
3642 | & (meta_modifier | alt_modifier | |
3643 | | hyper_modifier | super_modifier)); | |
3644 | ||
86e5706b | 3645 | if (c == quit_char) |
284f4730 | 3646 | { |
c5fdd383 KH |
3647 | #ifdef MULTI_KBOARD |
3648 | KBOARD *kb; | |
5798cf15 KH |
3649 | struct input_event *sp; |
3650 | ||
1e8bd3da | 3651 | if (single_kboard |
c5fdd383 KH |
3652 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3653 | kb != current_kboard)) | |
5798cf15 | 3654 | { |
c5fdd383 | 3655 | kb->kbd_queue |
5798cf15 KH |
3656 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3657 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3658 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3659 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3660 | { | |
3661 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3662 | sp = kbd_buffer; | |
3663 | ||
c5fdd383 | 3664 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3665 | { |
3b8f9651 | 3666 | sp->kind = NO_EVENT; |
5798cf15 | 3667 | sp->frame_or_window = Qnil; |
da8f7368 | 3668 | sp->arg = Qnil; |
5798cf15 KH |
3669 | } |
3670 | } | |
3671 | return; | |
3672 | } | |
3673 | #endif | |
3e51c7b7 | 3674 | |
0fc0bac9 KS |
3675 | if (hold_quit) |
3676 | { | |
3677 | bcopy (event, (char *) hold_quit, sizeof (*event)); | |
3678 | return; | |
3679 | } | |
3680 | ||
284f4730 | 3681 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3682 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3683 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3684 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3685 | { |
9b8eb840 | 3686 | Lisp_Object focus; |
4bb994d1 | 3687 | |
9b8eb840 | 3688 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3689 | if (NILP (focus)) |
beecf6a1 | 3690 | focus = event->frame_or_window; |
4c52b668 KH |
3691 | internal_last_event_frame = focus; |
3692 | Vlast_event_frame = focus; | |
4bb994d1 | 3693 | } |
3e51c7b7 | 3694 | |
ffd56f97 | 3695 | last_event_timestamp = event->timestamp; |
7189cad8 | 3696 | interrupt_signal (0 /* dummy */); |
284f4730 JB |
3697 | return; |
3698 | } | |
3699 | ||
3700 | if (c && c == stop_character) | |
3701 | { | |
3702 | sys_suspend (); | |
3703 | return; | |
3704 | } | |
284f4730 | 3705 | } |
3b8f9651 | 3706 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3707 | Just ignore the second one. */ |
3b8f9651 | 3708 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3709 | && kbd_fetch_ptr != kbd_store_ptr |
0fc0bac9 KS |
3710 | && ((kbd_store_ptr == kbd_buffer |
3711 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3712 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3713 | return; |
284f4730 | 3714 | |
beecf6a1 KH |
3715 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3716 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3717 | |
3718 | /* Don't let the very last slot in the buffer become full, | |
3719 | since that would make the two pointers equal, | |
3720 | and that is indistinguishable from an empty buffer. | |
3721 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3722 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3723 | { |
e3f6e7c7 KS |
3724 | *kbd_store_ptr = *event; |
3725 | ++kbd_store_ptr; | |
3726 | } | |
2a84c6da | 3727 | |
85e7f477 RS |
3728 | /* If we're inside while-no-input, and this event qualifies |
3729 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3730 | if (!NILP (Vthrow_on_input) |
3731 | && event->kind != FOCUS_IN_EVENT | |
3732 | && event->kind != HELP_EVENT | |
3733 | && event->kind != DEICONIFY_EVENT) | |
85e7f477 RS |
3734 | { |
3735 | Vquit_flag = Vthrow_on_input; | |
3736 | /* If we're inside a function that wants immediate quits, | |
3737 | do it now. */ | |
3738 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3739 | { | |
3740 | immediate_quit = 0; | |
3741 | sigfree (); | |
3742 | QUIT; | |
3743 | } | |
3744 | } | |
e3f6e7c7 | 3745 | } |
c60ee5e7 | 3746 | |
da8f7368 | 3747 | |
e3f6e7c7 | 3748 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3749 | |
e3f6e7c7 KS |
3750 | void |
3751 | kbd_buffer_unget_event (event) | |
3752 | register struct input_event *event; | |
3753 | { | |
3754 | if (kbd_fetch_ptr == kbd_buffer) | |
3755 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3756 | ||
3757 | /* Don't let the very last slot in the buffer become full, */ | |
3758 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3759 | { | |
3760 | --kbd_fetch_ptr; | |
3761 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3762 | } |
3763 | } | |
8dfd92c9 GM |
3764 | |
3765 | ||
f139e559 | 3766 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3767 | SIZE events. If there's not enough room in BUFP, ignore this |
3768 | event. | |
8dfd92c9 GM |
3769 | |
3770 | HELP is the help form. | |
3771 | ||
3772 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3773 | Lisp object where the help was found (a buffer, a string, an |
3774 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3775 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3776 | |
3777 | Value is the number of input_events generated. */ | |
3778 | ||
0fc0bac9 KS |
3779 | void |
3780 | gen_help_event (help, frame, window, object, pos) | |
2190735a | 3781 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3782 | int pos; |
3783 | { | |
0fc0bac9 KS |
3784 | struct input_event event; |
3785 | ||
3786 | EVENT_INIT (event); | |
3787 | ||
3788 | event.kind = HELP_EVENT; | |
3789 | event.frame_or_window = frame; | |
3790 | event.arg = object; | |
3791 | event.x = WINDOWP (window) ? window : frame; | |
3792 | event.y = help; | |
3793 | event.code = pos; | |
3794 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3795 | } |
3796 | ||
3797 | ||
3798 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3799 | ||
3800 | void | |
3801 | kbd_buffer_store_help_event (frame, help) | |
3802 | Lisp_Object frame, help; | |
3803 | { | |
3804 | struct input_event event; | |
3805 | ||
3806 | event.kind = HELP_EVENT; | |
3807 | event.frame_or_window = frame; | |
3808 | event.arg = Qnil; | |
2e1a49ad SM |
3809 | event.x = Qnil; |
3810 | event.y = help; | |
8dfd92c9 GM |
3811 | event.code = 0; |
3812 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3813 | } |
3814 | ||
a612e298 | 3815 | \f |
07de30b9 | 3816 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3817 | NO_EVENT. */ |
07de30b9 GV |
3818 | void |
3819 | discard_mouse_events () | |
3820 | { | |
3821 | struct input_event *sp; | |
3822 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3823 | { | |
3824 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3825 | sp = kbd_buffer; | |
3826 | ||
3b8f9651 | 3827 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3828 | || sp->kind == WHEEL_EVENT |
07de30b9 | 3829 | #ifdef WINDOWSNT |
3b8f9651 | 3830 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3831 | #endif |
3b8f9651 | 3832 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3833 | { |
3b8f9651 | 3834 | sp->kind = NO_EVENT; |
07de30b9 GV |
3835 | } |
3836 | } | |
3837 | } | |
eeabfe76 | 3838 | |
0bbfdc25 GM |
3839 | |
3840 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3841 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3842 | |
3b8f9651 | 3843 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3844 | the input queue, possibly leaving the input queue empty if there |
3845 | are no real input events. */ | |
3846 | ||
eeabfe76 EZ |
3847 | int |
3848 | kbd_buffer_events_waiting (discard) | |
3849 | int discard; | |
3850 | { | |
3851 | struct input_event *sp; | |
c60ee5e7 | 3852 | |
0bbfdc25 | 3853 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3854 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3855 | ++sp) |
eeabfe76 EZ |
3856 | { |
3857 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3858 | sp = kbd_buffer; | |
eeabfe76 | 3859 | } |
0bbfdc25 | 3860 | |
eeabfe76 EZ |
3861 | if (discard) |
3862 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3863 | |
3b8f9651 | 3864 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3865 | } |
0bbfdc25 | 3866 | |
07de30b9 | 3867 | \f |
0bbfdc25 GM |
3868 | /* Clear input event EVENT. */ |
3869 | ||
3870 | static INLINE void | |
3871 | clear_event (event) | |
3872 | struct input_event *event; | |
3873 | { | |
3b8f9651 | 3874 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3875 | } |
3876 | ||
3877 | ||
a612e298 RS |
3878 | /* Read one event from the event buffer, waiting if necessary. |
3879 | The value is a Lisp object representing the event. | |
3880 | The value is nil for an event that should be ignored, | |
3881 | or that was handled here. | |
3882 | We always read and discard one event. */ | |
284f4730 JB |
3883 | |
3884 | static Lisp_Object | |
83d68044 | 3885 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3886 | KBOARD **kbp; |
83d68044 | 3887 | int *used_mouse_menu; |
284f4730 JB |
3888 | { |
3889 | register int c; | |
3890 | Lisp_Object obj; | |
3891 | ||
3892 | if (noninteractive) | |
3893 | { | |
3894 | c = getchar (); | |
18cd2eeb | 3895 | XSETINT (obj, c); |
f5b56972 | 3896 | *kbp = current_kboard; |
284f4730 JB |
3897 | return obj; |
3898 | } | |
3899 | ||
3900 | /* Wait until there is input available. */ | |
3901 | for (;;) | |
3902 | { | |
beecf6a1 KH |
3903 | if (kbd_fetch_ptr != kbd_store_ptr) |
3904 | break; | |
3905 | #ifdef HAVE_MOUSE | |
f3253854 | 3906 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3907 | break; |
beecf6a1 | 3908 | #endif |
284f4730 JB |
3909 | |
3910 | /* If the quit flag is set, then read_char will return | |
3911 | quit_char, so that counts as "available input." */ | |
3912 | if (!NILP (Vquit_flag)) | |
3913 | quit_throw_to_read_char (); | |
3914 | ||
3915 | /* One way or another, wait until input is available; then, if | |
3916 | interrupt handlers have not read it, read it now. */ | |
3917 | ||
3918 | #ifdef OLDVMS | |
3919 | wait_for_kbd_input (); | |
3920 | #else | |
3921 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3922 | #ifdef SIGIO | |
3923 | gobble_input (0); | |
3924 | #endif /* SIGIO */ | |
beecf6a1 KH |
3925 | if (kbd_fetch_ptr != kbd_store_ptr) |
3926 | break; | |
3927 | #ifdef HAVE_MOUSE | |
f3253854 | 3928 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3929 | break; |
3930 | #endif | |
3931 | { | |
d64b707c | 3932 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 3933 | |
beecf6a1 KH |
3934 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3935 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3936 | read_avail_input (1); | |
3937 | } | |
284f4730 JB |
3938 | #endif /* not VMS */ |
3939 | } | |
3940 | ||
303b5b3f RS |
3941 | if (CONSP (Vunread_command_events)) |
3942 | { | |
3943 | Lisp_Object first; | |
7539e11f KR |
3944 | first = XCAR (Vunread_command_events); |
3945 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3946 | *kbp = current_kboard; |
3947 | return first; | |
3948 | } | |
3949 | ||
284f4730 JB |
3950 | /* At this point, we know that there is a readable event available |
3951 | somewhere. If the event queue is empty, then there must be a | |
3952 | mouse movement enabled and available. */ | |
beecf6a1 | 3953 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3954 | { |
cd21b839 | 3955 | struct input_event *event; |
3e51c7b7 | 3956 | |
beecf6a1 KH |
3957 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3958 | ? kbd_fetch_ptr | |
3959 | : kbd_buffer); | |
3e51c7b7 | 3960 | |
cd21b839 | 3961 | last_event_timestamp = event->timestamp; |
cd21b839 | 3962 | |
c5fdd383 KH |
3963 | #ifdef MULTI_KBOARD |
3964 | *kbp = event_to_kboard (event); | |
3965 | if (*kbp == 0) | |
3966 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3967 | #else |
c5fdd383 | 3968 | *kbp = &the_only_kboard; |
5798cf15 | 3969 | #endif |
beecf6a1 | 3970 | |
4bb994d1 JB |
3971 | obj = Qnil; |
3972 | ||
48e416d4 | 3973 | /* These two kinds of events get special handling |
a612e298 RS |
3974 | and don't actually appear to the command loop. |
3975 | We return nil for them. */ | |
e3f6e7c7 KS |
3976 | if (event->kind == SELECTION_REQUEST_EVENT |
3977 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 3978 | { |
598a9fa7 | 3979 | #ifdef HAVE_X11 |
1e8bd3da RS |
3980 | struct input_event copy; |
3981 | ||
4581e928 RS |
3982 | /* Remove it from the buffer before processing it, |
3983 | since otherwise swallow_events will see it | |
3984 | and process it again. */ | |
1e8bd3da | 3985 | copy = *event; |
beecf6a1 | 3986 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3987 | input_pending = readable_events (0); |
e3f6e7c7 | 3988 | x_handle_selection_event (©); |
598a9fa7 JB |
3989 | #else |
3990 | /* We're getting selection request events, but we don't have | |
3991 | a window system. */ | |
3992 | abort (); | |
3993 | #endif | |
48e416d4 RS |
3994 | } |
3995 | ||
e0f712ba | 3996 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 3997 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3998 | { |
bbdc2092 RS |
3999 | /* Make an event (delete-frame (FRAME)). */ |
4000 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 4001 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 4002 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4003 | } |
1a578e9b AC |
4004 | #endif |
4005 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) | |
3b8f9651 | 4006 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
4007 | { |
4008 | /* Make an event (iconify-frame (FRAME)). */ | |
4009 | obj = Fcons (event->frame_or_window, Qnil); | |
4010 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 4011 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4012 | } |
3b8f9651 | 4013 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
4014 | { |
4015 | /* Make an event (make-frame-visible (FRAME)). */ | |
4016 | obj = Fcons (event->frame_or_window, Qnil); | |
4017 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 4018 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
4019 | } |
4020 | #endif | |
3b8f9651 | 4021 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
4022 | { |
4023 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 4024 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 4025 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 4026 | } |
488dd4c4 JD |
4027 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
4028 | || defined (USE_GTK) | |
3b8f9651 | 4029 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
4030 | { |
4031 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 4032 | input_pending = readable_events (0); |
e649d076 RS |
4033 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
4034 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 4035 | } |
1161d367 | 4036 | #endif |
c16dab62 | 4037 | #if defined (WINDOWSNT) || defined (MAC_OS) |
3b8f9651 | 4038 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 | 4039 | { |
c16dab62 YM |
4040 | #ifdef MAC_OS |
4041 | /* Make an event (language-change (KEY_SCRIPT)). */ | |
4042 | obj = Fcons (make_number (event->code), Qnil); | |
4043 | #else | |
1161d367 | 4044 | /* Make an event (language-change (FRAME CHARSET LCID)). */ |
d352abdf | 4045 | obj = Fcons (event->frame_or_window, Qnil); |
c16dab62 | 4046 | #endif |
1161d367 GV |
4047 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
4048 | kbd_fetch_ptr = event + 1; | |
4049 | } | |
099787c1 | 4050 | #endif |
3b8f9651 | 4051 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
4052 | { |
4053 | obj = Fcons (Qsave_session, Qnil); | |
4054 | kbd_fetch_ptr = event + 1; | |
4055 | } | |
a612e298 | 4056 | /* Just discard these, by returning nil. |
c5fdd383 | 4057 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
4058 | when we need to randomly delete events from the queue. |
4059 | (They shouldn't otherwise be found in the buffer, | |
4060 | but on some machines it appears they do show up | |
c5fdd383 | 4061 | even without MULTI_KBOARD.) */ |
3b8f9651 | 4062 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 4063 | mouse events during a popup-menu call. */ |
3b8f9651 | 4064 | else if (event->kind == NO_EVENT) |
beecf6a1 | 4065 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
4066 | else if (event->kind == HELP_EVENT) |
4067 | { | |
2190735a | 4068 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 4069 | |
8dfd92c9 GM |
4070 | frame = event->frame_or_window; |
4071 | object = event->arg; | |
2e1a49ad SM |
4072 | position = make_number (event->code); |
4073 | window = event->x; | |
4074 | help = event->y; | |
0bbfdc25 | 4075 | clear_event (event); |
e4457b09 GM |
4076 | |
4077 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4078 | if (!WINDOWP (window)) |
4079 | window = Qnil; | |
4080 | obj = Fcons (Qhelp_echo, | |
4081 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4082 | } |
c51c7093 GM |
4083 | else if (event->kind == FOCUS_IN_EVENT) |
4084 | { | |
4085 | /* Notification of a FocusIn event. The frame receiving the | |
4086 | focus is in event->frame_or_window. Generate a | |
4087 | switch-frame event if necessary. */ | |
4088 | Lisp_Object frame, focus; | |
4089 | ||
4090 | frame = event->frame_or_window; | |
4091 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4092 | if (FRAMEP (focus)) | |
4093 | frame = focus; | |
4094 | ||
4095 | if (!EQ (frame, internal_last_event_frame) | |
4096 | && !EQ (frame, selected_frame)) | |
4097 | obj = make_lispy_switch_frame (frame); | |
4098 | internal_last_event_frame = frame; | |
4099 | kbd_fetch_ptr = event + 1; | |
4100 | } | |
1e12dd87 RS |
4101 | else |
4102 | { | |
c51c7093 GM |
4103 | /* If this event is on a different frame, return a switch-frame this |
4104 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4105 | Lisp_Object frame; |
1e12dd87 | 4106 | Lisp_Object focus; |
7b4aedb9 | 4107 | |
9b8eb840 | 4108 | frame = event->frame_or_window; |
2470a66f | 4109 | if (CONSP (frame)) |
7539e11f | 4110 | frame = XCAR (frame); |
2470a66f | 4111 | else if (WINDOWP (frame)) |
1e12dd87 | 4112 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4113 | |
1e12dd87 RS |
4114 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4115 | if (! NILP (focus)) | |
4116 | frame = focus; | |
07d2b8de | 4117 | |
4c52b668 | 4118 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4119 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4120 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4121 | internal_last_event_frame = frame; |
4bb994d1 | 4122 | |
1e12dd87 RS |
4123 | /* If we didn't decide to make a switch-frame event, go ahead |
4124 | and build a real event from the queue entry. */ | |
cd21b839 | 4125 | |
1e12dd87 RS |
4126 | if (NILP (obj)) |
4127 | { | |
4128 | obj = make_lispy_event (event); | |
c60ee5e7 | 4129 | |
488dd4c4 JD |
4130 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \ |
4131 | || defined (USE_GTK) | |
83d68044 KH |
4132 | /* If this was a menu selection, then set the flag to inhibit |
4133 | writing to last_nonmenu_event. Don't do this if the event | |
4134 | we're returning is (menu-bar), though; that indicates the | |
4135 | beginning of the menu sequence, and we might as well leave | |
4136 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4137 | if (used_mouse_menu |
4138 | && !EQ (event->frame_or_window, event->arg) | |
4139 | && (event->kind == MENU_BAR_EVENT | |
4140 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4141 | *used_mouse_menu = 1; |
4142 | #endif | |
1e12dd87 RS |
4143 | |
4144 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4145 | clear_event (event); |
beecf6a1 | 4146 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4147 | } |
4bb994d1 | 4148 | } |
284f4730 | 4149 | } |
2eb6bfbe | 4150 | #ifdef HAVE_MOUSE |
a612e298 | 4151 | /* Try generating a mouse motion event. */ |
f3253854 | 4152 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4153 | { |
f3253854 | 4154 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4155 | Lisp_Object bar_window; |
3c370943 | 4156 | enum scroll_bar_part part; |
e5d77022 JB |
4157 | Lisp_Object x, y; |
4158 | unsigned long time; | |
284f4730 | 4159 | |
c5fdd383 | 4160 | *kbp = current_kboard; |
e177ac3a RS |
4161 | /* Note that this uses F to determine which display to look at. |
4162 | If there is no valid info, it does not store anything | |
4163 | so x remains nil. */ | |
4164 | x = Qnil; | |
dd26ab75 | 4165 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
4166 | |
4167 | obj = Qnil; | |
284f4730 | 4168 | |
4bb994d1 JB |
4169 | /* Decide if we should generate a switch-frame event. Don't |
4170 | generate switch-frame events for motion outside of all Emacs | |
4171 | frames. */ | |
e177ac3a | 4172 | if (!NILP (x) && f) |
cd21b839 | 4173 | { |
9b8eb840 | 4174 | Lisp_Object frame; |
4bb994d1 | 4175 | |
9b8eb840 | 4176 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4177 | if (NILP (frame)) |
18cd2eeb | 4178 | XSETFRAME (frame, f); |
4bb994d1 | 4179 | |
4c52b668 | 4180 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4181 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4182 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4183 | internal_last_event_frame = frame; |
cd21b839 | 4184 | } |
4bb994d1 | 4185 | |
df0f2ba1 | 4186 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4187 | return a mouse-motion event. */ |
e177ac3a | 4188 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4189 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4190 | } |
2eb6bfbe | 4191 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
4192 | else |
4193 | /* We were promised by the above while loop that there was | |
4194 | something for us to read! */ | |
4195 | abort (); | |
4196 | ||
d9d4c147 | 4197 | input_pending = readable_events (0); |
284f4730 | 4198 | |
4c52b668 | 4199 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4200 | |
284f4730 JB |
4201 | return (obj); |
4202 | } | |
a612e298 RS |
4203 | \f |
4204 | /* Process any events that are not user-visible, | |
4205 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4206 | |
4207 | void | |
d9d4c147 KH |
4208 | swallow_events (do_display) |
4209 | int do_display; | |
3a3b9632 | 4210 | { |
87dd9b9b RS |
4211 | int old_timers_run; |
4212 | ||
beecf6a1 | 4213 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4214 | { |
4215 | struct input_event *event; | |
4216 | ||
beecf6a1 KH |
4217 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4218 | ? kbd_fetch_ptr | |
4219 | : kbd_buffer); | |
3a3b9632 RS |
4220 | |
4221 | last_event_timestamp = event->timestamp; | |
4222 | ||
4223 | /* These two kinds of events get special handling | |
4224 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4225 | if (event->kind == SELECTION_REQUEST_EVENT |
4226 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4227 | { |
4228 | #ifdef HAVE_X11 | |
4581e928 | 4229 | struct input_event copy; |
e0301c07 RS |
4230 | |
4231 | /* Remove it from the buffer before processing it, | |
4232 | since otherwise swallow_events called recursively could see it | |
4233 | and process it again. */ | |
4581e928 | 4234 | copy = *event; |
beecf6a1 | 4235 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4236 | input_pending = readable_events (0); |
e3f6e7c7 | 4237 | x_handle_selection_event (©); |
3a3b9632 RS |
4238 | #else |
4239 | /* We're getting selection request events, but we don't have | |
4240 | a window system. */ | |
4241 | abort (); | |
4242 | #endif | |
4243 | } | |
4244 | else | |
4245 | break; | |
4246 | } | |
4247 | ||
87dd9b9b | 4248 | old_timers_run = timers_run; |
a2d5fca0 | 4249 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4250 | |
4251 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4252 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4253 | } |
a612e298 | 4254 | \f |
d9d4c147 KH |
4255 | /* Record the start of when Emacs is idle, |
4256 | for the sake of running idle-time timers. */ | |
4257 | ||
5c12e63f | 4258 | static void |
d9d4c147 KH |
4259 | timer_start_idle () |
4260 | { | |
4261 | Lisp_Object timers; | |
4262 | ||
4263 | /* If we are already in the idle state, do nothing. */ | |
4264 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4265 | return; | |
4266 | ||
4267 | EMACS_GET_TIME (timer_idleness_start_time); | |
4268 | ||
3021d3a9 RS |
4269 | timer_last_idleness_start_time = timer_idleness_start_time; |
4270 | ||
d9d4c147 | 4271 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4272 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4273 | { |
4274 | Lisp_Object timer; | |
4275 | ||
7539e11f | 4276 | timer = XCAR (timers); |
d9d4c147 KH |
4277 | |
4278 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4279 | continue; | |
4280 | XVECTOR (timer)->contents[0] = Qnil; | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4285 | ||
5c12e63f | 4286 | static void |
d9d4c147 KH |
4287 | timer_stop_idle () |
4288 | { | |
4289 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4290 | } | |
4291 | ||
5c12e63f KS |
4292 | /* Resume idle timer from last idle start time. */ |
4293 | ||
4294 | static void | |
4295 | timer_resume_idle () | |
4296 | { | |
4297 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4298 | return; | |
4299 | ||
4300 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4301 | } | |
4302 | ||
e044e87c RS |
4303 | /* This is only for debugging. */ |
4304 | struct input_event last_timer_event; | |
4305 | ||
c04cbc3b RS |
4306 | /* Check whether a timer has fired. To prevent larger problems we simply |
4307 | disregard elements that are not proper timers. Do not make a circular | |
4308 | timer list for the time being. | |
4309 | ||
4310 | Returns the number of seconds to wait until the next timer fires. If a | |
4311 | timer is triggering now, return zero seconds. | |
4312 | If no timer is active, return -1 seconds. | |
4313 | ||
4ec4ed6a RS |
4314 | If a timer is ripe, we run it, with quitting turned off. |
4315 | ||
4316 | DO_IT_NOW is now ignored. It used to mean that we should | |
4317 | run the timer directly instead of queueing a timer-event. | |
4318 | Now we always run timers directly. */ | |
c04cbc3b RS |
4319 | |
4320 | EMACS_TIME | |
4321 | timer_check (do_it_now) | |
4322 | int do_it_now; | |
4323 | { | |
4324 | EMACS_TIME nexttime; | |
9291c072 RS |
4325 | EMACS_TIME now, idleness_now; |
4326 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4327 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4328 | |
c04cbc3b RS |
4329 | EMACS_SET_SECS (nexttime, -1); |
4330 | EMACS_SET_USECS (nexttime, -1); | |
4331 | ||
9291c072 | 4332 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4333 | timers = Vtimer_list; |
9291c072 RS |
4334 | /* Consider the idle timers only if Emacs is idle. */ |
4335 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4336 | idle_timers = Vtimer_idle_list; | |
4337 | else | |
4338 | idle_timers = Qnil; | |
4339 | chosen_timer = Qnil; | |
4340 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4341 | |
9291c072 | 4342 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4343 | { |
9291c072 RS |
4344 | EMACS_GET_TIME (now); |
4345 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4346 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4347 | } | |
c04cbc3b | 4348 | |
9291c072 RS |
4349 | while (CONSP (timers) || CONSP (idle_timers)) |
4350 | { | |
9291c072 | 4351 | Lisp_Object *vector; |
8c907a56 | 4352 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4353 | EMACS_TIME timer_time, idle_timer_time; |
4354 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4355 | ||
4356 | /* Skip past invalid timers and timers already handled. */ | |
4357 | if (!NILP (timers)) | |
c04cbc3b | 4358 | { |
7539e11f | 4359 | timer = XCAR (timers); |
9291c072 RS |
4360 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4361 | { | |
7539e11f | 4362 | timers = XCDR (timers); |
9291c072 RS |
4363 | continue; |
4364 | } | |
4365 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4366 | |
9291c072 RS |
4367 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4368 | || !INTEGERP (vector[3]) | |
4369 | || ! NILP (vector[0])) | |
4370 | { | |
7539e11f | 4371 | timers = XCDR (timers); |
9291c072 RS |
4372 | continue; |
4373 | } | |
4374 | } | |
4375 | if (!NILP (idle_timers)) | |
4376 | { | |
7539e11f | 4377 | timer = XCAR (idle_timers); |
d9d4c147 | 4378 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4379 | { |
7539e11f | 4380 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4381 | continue; |
4382 | } | |
d9d4c147 KH |
4383 | vector = XVECTOR (timer)->contents; |
4384 | ||
4385 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4386 | || !INTEGERP (vector[3]) |
4387 | || ! NILP (vector[0])) | |
4388 | { | |
7539e11f | 4389 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4390 | continue; |
4391 | } | |
4392 | } | |
d9d4c147 | 4393 | |
9291c072 RS |
4394 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4395 | based on the next ordinary timer. | |
4396 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4397 | this timer becomes ripe (negative if it's already ripe). */ | |
4398 | if (!NILP (timers)) | |
4399 | { | |
7539e11f | 4400 | timer = XCAR (timers); |
9291c072 | 4401 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4402 | EMACS_SET_SECS (timer_time, |
4403 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4404 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4405 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4406 | } | |
ba8dfba8 | 4407 | |
9291c072 RS |
4408 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4409 | based on the next idle timer. */ | |
4410 | if (!NILP (idle_timers)) | |
4411 | { | |
7539e11f | 4412 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4413 | vector = XVECTOR (idle_timer)->contents; |
4414 | EMACS_SET_SECS (idle_timer_time, | |
4415 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4416 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4417 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4418 | } | |
ba8dfba8 | 4419 | |
9291c072 RS |
4420 | /* Decide which timer is the next timer, |
4421 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4422 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4423 | |
9291c072 RS |
4424 | if (! NILP (timers) && ! NILP (idle_timers)) |
4425 | { | |
4426 | EMACS_TIME temp; | |
4427 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4428 | if (EMACS_TIME_NEG_P (temp)) | |
4429 | { | |
4430 | chosen_timer = timer; | |
7539e11f | 4431 | timers = XCDR (timers); |
9291c072 | 4432 | difference = timer_difference; |
c04cbc3b | 4433 | } |
d9d4c147 | 4434 | else |
d9d4c147 | 4435 | { |
9291c072 | 4436 | chosen_timer = idle_timer; |
7539e11f | 4437 | idle_timers = XCDR (idle_timers); |
9291c072 | 4438 | difference = idle_timer_difference; |
d9d4c147 | 4439 | } |
7ea13e12 | 4440 | } |
9291c072 RS |
4441 | else if (! NILP (timers)) |
4442 | { | |
4443 | chosen_timer = timer; | |
7539e11f | 4444 | timers = XCDR (timers); |
9291c072 RS |
4445 | difference = timer_difference; |
4446 | } | |
4447 | else | |
4448 | { | |
4449 | chosen_timer = idle_timer; | |
7539e11f | 4450 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4451 | difference = idle_timer_difference; |
4452 | } | |
4453 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4454 | |
bd55b860 | 4455 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4456 | if (EMACS_TIME_NEG_P (difference) |
4457 | || (EMACS_SECS (difference) == 0 | |
4458 | && EMACS_USECS (difference) == 0)) | |
4459 | { | |
4460 | if (NILP (vector[0])) | |
4461 | { | |
d925fb39 | 4462 | int was_locked = single_kboard; |
331379bf | 4463 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4464 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4465 | |
9291c072 RS |
4466 | /* Mark the timer as triggered to prevent problems if the lisp |
4467 | code fails to reschedule it right. */ | |
4468 | vector[0] = Qt; | |
4469 | ||
d925fb39 | 4470 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4471 | |
d925fb39 | 4472 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4473 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4474 | timers_run++; |
d925fb39 | 4475 | unbind_to (count, Qnil); |
4ec4ed6a | 4476 | |
d925fb39 RS |
4477 | /* Resume allowing input from any kboard, if that was true before. */ |
4478 | if (!was_locked) | |
4479 | any_kboard_state (); | |
9291c072 | 4480 | |
d925fb39 RS |
4481 | /* Since we have handled the event, |
4482 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4483 | } |
4484 | } | |
4485 | else | |
4486 | /* When we encounter a timer that is still waiting, | |
4487 | return the amount of time to wait before it is ripe. */ | |
4488 | { | |
4489 | UNGCPRO; | |
9291c072 RS |
4490 | return difference; |
4491 | } | |
c04cbc3b | 4492 | } |
9291c072 | 4493 | |
7ea13e12 RS |
4494 | /* No timers are pending in the future. */ |
4495 | /* Return 0 if we generated an event, and -1 if not. */ | |
4496 | UNGCPRO; | |
c04cbc3b RS |
4497 | return nexttime; |
4498 | } | |
4499 | \f | |
284f4730 | 4500 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4501 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4502 | static Lisp_Object func_key_syms; |
4503 | static Lisp_Object mouse_syms; | |
8006e4bb | 4504 | static Lisp_Object wheel_syms; |
a24dc617 | 4505 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4506 | |
e9bf89a0 RS |
4507 | /* This is a list of keysym codes for special "accent" characters. |
4508 | It parallels lispy_accent_keys. */ | |
4509 | ||
4510 | static int lispy_accent_codes[] = | |
4511 | { | |
79a7046c | 4512 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4513 | XK_dead_circumflex, |
79a7046c RS |
4514 | #else |
4515 | 0, | |
4516 | #endif | |
4517 | #ifdef XK_dead_grave | |
e9bf89a0 | 4518 | XK_dead_grave, |
79a7046c RS |
4519 | #else |
4520 | 0, | |
4521 | #endif | |
4522 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4523 | XK_dead_tilde, |
79a7046c RS |
4524 | #else |
4525 | 0, | |
4526 | #endif | |
4527 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4528 | XK_dead_diaeresis, |
79a7046c RS |
4529 | #else |
4530 | 0, | |
4531 | #endif | |
4532 | #ifdef XK_dead_macron | |
e9bf89a0 | 4533 | XK_dead_macron, |
79a7046c RS |
4534 | #else |
4535 | 0, | |
4536 | #endif | |
4537 | #ifdef XK_dead_degree | |
e9bf89a0 | 4538 | XK_dead_degree, |
79a7046c RS |
4539 | #else |
4540 | 0, | |
4541 | #endif | |
4542 | #ifdef XK_dead_acute | |
e9bf89a0 | 4543 | XK_dead_acute, |
79a7046c RS |
4544 | #else |
4545 | 0, | |
4546 | #endif | |
4547 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4548 | XK_dead_cedilla, |
79a7046c RS |
4549 | #else |
4550 | 0, | |
4551 | #endif | |
4552 | #ifdef XK_dead_breve | |
e9bf89a0 | 4553 | XK_dead_breve, |
79a7046c RS |
4554 | #else |
4555 | 0, | |
4556 | #endif | |
4557 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4558 | XK_dead_ogonek, |
79a7046c RS |
4559 | #else |
4560 | 0, | |
4561 | #endif | |
4562 | #ifdef XK_dead_caron | |
e9bf89a0 | 4563 | XK_dead_caron, |
79a7046c RS |
4564 | #else |
4565 | 0, | |
4566 | #endif | |
4567 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4568 | XK_dead_doubleacute, |
79a7046c RS |
4569 | #else |
4570 | 0, | |
4571 | #endif | |
4572 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4573 | XK_dead_abovedot, |
79a7046c RS |
4574 | #else |
4575 | 0, | |
4576 | #endif | |
ed3230db DL |
4577 | #ifdef XK_dead_abovering |
4578 | XK_dead_abovering, | |
4579 | #else | |
4580 | 0, | |
4581 | #endif | |
4582 | #ifdef XK_dead_iota | |
4583 | XK_dead_iota, | |
4584 | #else | |
4585 | 0, | |
4586 | #endif | |
4587 | #ifdef XK_dead_belowdot | |
4588 | XK_dead_belowdot, | |
4589 | #else | |
4590 | 0, | |
4591 | #endif | |
4592 | #ifdef XK_dead_voiced_sound | |
4593 | XK_dead_voiced_sound, | |
4594 | #else | |
4595 | 0, | |
4596 | #endif | |
4597 | #ifdef XK_dead_semivoiced_sound | |
4598 | XK_dead_semivoiced_sound, | |
4599 | #else | |
4600 | 0, | |
4601 | #endif | |
4602 | #ifdef XK_dead_hook | |
4603 | XK_dead_hook, | |
4604 | #else | |
4605 | 0, | |
4606 | #endif | |
4607 | #ifdef XK_dead_horn | |
4608 | XK_dead_horn, | |
4609 | #else | |
4610 | 0, | |
4611 | #endif | |
e9bf89a0 RS |
4612 | }; |
4613 | ||
4614 | /* This is a list of Lisp names for special "accent" characters. | |
4615 | It parallels lispy_accent_codes. */ | |
4616 | ||
4617 | static char *lispy_accent_keys[] = | |
4618 | { | |
4619 | "dead-circumflex", | |
4620 | "dead-grave", | |
4621 | "dead-tilde", | |
4622 | "dead-diaeresis", | |
4623 | "dead-macron", | |
4624 | "dead-degree", | |
4625 | "dead-acute", | |
4626 | "dead-cedilla", | |
4627 | "dead-breve", | |
4628 | "dead-ogonek", | |
4629 | "dead-caron", | |
4630 | "dead-doubleacute", | |
4631 | "dead-abovedot", | |
ed3230db DL |
4632 | "dead-abovering", |
4633 | "dead-iota", | |
4634 | "dead-belowdot", | |
4635 | "dead-voiced-sound", | |
4636 | "dead-semivoiced-sound", | |
4637 | "dead-hook", | |
4638 | "dead-horn", | |
e9bf89a0 RS |
4639 | }; |
4640 | ||
e98a93eb GV |
4641 | #ifdef HAVE_NTGUI |
4642 | #define FUNCTION_KEY_OFFSET 0x0 | |
4643 | ||
4644 | char *lispy_function_keys[] = | |
4645 | { | |
4646 | 0, /* 0 */ | |
c60ee5e7 | 4647 | |
e98a93eb GV |
4648 | 0, /* VK_LBUTTON 0x01 */ |
4649 | 0, /* VK_RBUTTON 0x02 */ | |
4650 | "cancel", /* VK_CANCEL 0x03 */ | |
4651 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4652 | |
e98a93eb | 4653 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4654 | |
e98a93eb GV |
4655 | "backspace", /* VK_BACK 0x08 */ |
4656 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4657 | |
e98a93eb | 4658 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4659 | |
e98a93eb GV |
4660 | "clear", /* VK_CLEAR 0x0C */ |
4661 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4662 | |
e98a93eb | 4663 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4664 | |
1161d367 GV |
4665 | 0, /* VK_SHIFT 0x10 */ |
4666 | 0, /* VK_CONTROL 0x11 */ | |
4667 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4668 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4669 | "capslock", /* VK_CAPITAL 0x14 */ |
c60ee5e7 | 4670 | |
e98a93eb | 4671 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ |
c60ee5e7 | 4672 | |
1161d367 | 4673 | "escape", /* VK_ESCAPE 0x1B */ |
c60ee5e7 | 4674 | |
e98a93eb | 4675 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ |
c60ee5e7 | 4676 | |
e98a93eb GV |
4677 | 0, /* VK_SPACE 0x20 */ |
4678 | "prior", /* VK_PRIOR 0x21 */ | |
4679 | "next", /* VK_NEXT 0x22 */ | |
4680 | "end", /* VK_END 0x23 */ | |
4681 | "home", /* VK_HOME 0x24 */ | |
4682 | "left", /* VK_LEFT 0x25 */ | |
4683 | "up", /* VK_UP 0x26 */ | |
4684 | "right", /* VK_RIGHT 0x27 */ | |
4685 | "down", /* VK_DOWN 0x28 */ | |
4686 | "select", /* VK_SELECT 0x29 */ | |
4687 | "print", /* VK_PRINT 0x2A */ | |
4688 | "execute", /* VK_EXECUTE 0x2B */ | |
4689 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4690 | "insert", /* VK_INSERT 0x2D */ | |
4691 | "delete", /* VK_DELETE 0x2E */ | |
4692 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4693 | |
e98a93eb | 4694 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4695 | |
e98a93eb | 4696 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4697 | |
e98a93eb | 4698 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4699 | |
e98a93eb | 4700 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4701 | |
4702 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4703 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4704 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4705 | |
e376f90d RS |
4706 | "lwindow", /* VK_LWIN 0x5B */ |
4707 | "rwindow", /* VK_RWIN 0x5C */ | |
4708 | "apps", /* VK_APPS 0x5D */ | |
c60ee5e7 | 4709 | |
e98a93eb | 4710 | 0, 0, /* 0x5E .. 0x5F */ |
c60ee5e7 | 4711 | |
e98a93eb GV |
4712 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4713 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4714 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4715 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4716 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4717 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4718 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4719 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4720 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4721 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4722 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4723 | "kp-add", /* VK_ADD 0x6B */ | |
4724 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4725 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4726 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4727 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4728 | "f1", /* VK_F1 0x70 */ | |
4729 | "f2", /* VK_F2 0x71 */ | |
4730 | "f3", /* VK_F3 0x72 */ | |
4731 | "f4", /* VK_F4 0x73 */ | |
4732 | "f5", /* VK_F5 0x74 */ | |
4733 | "f6", /* VK_F6 0x75 */ | |
4734 | "f7", /* VK_F7 0x76 */ | |
4735 | "f8", /* VK_F8 0x77 */ | |
4736 | "f9", /* VK_F9 0x78 */ | |
4737 | "f10", /* VK_F10 0x79 */ | |
4738 | "f11", /* VK_F11 0x7A */ | |
4739 | "f12", /* VK_F12 0x7B */ | |
4740 | "f13", /* VK_F13 0x7C */ | |
4741 | "f14", /* VK_F14 0x7D */ | |
4742 | "f15", /* VK_F15 0x7E */ | |
4743 | "f16", /* VK_F16 0x7F */ | |
4744 | "f17", /* VK_F17 0x80 */ | |
4745 | "f18", /* VK_F18 0x81 */ | |
4746 | "f19", /* VK_F19 0x82 */ | |
4747 | "f20", /* VK_F20 0x83 */ | |
4748 | "f21", /* VK_F21 0x84 */ | |
4749 | "f22", /* VK_F22 0x85 */ | |
4750 | "f23", /* VK_F23 0x86 */ | |
4751 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4752 | |
e98a93eb GV |
4753 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4754 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4755 | |
e98a93eb GV |
4756 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4757 | "scroll", /* VK_SCROLL 0x91 */ | |
c60ee5e7 | 4758 | |
e376f90d RS |
4759 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4760 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4761 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4762 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4763 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4764 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4765 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4766 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4767 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4768 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4769 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4770 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4771 | ||
4772 | 0, 0, /* 0x9E .. 0x9F */ | |
4773 | ||
e98a93eb GV |
4774 | /* |
4775 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4776 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4777 | * No other API or message will distinguish left and right keys this way. |
4778 | */ | |
4779 | /* 0xA0 .. 0xEF */ | |
c60ee5e7 | 4780 | |
e98a93eb GV |
4781 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
4782 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4783 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4784 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4785 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4786 | |
e98a93eb | 4787 | /* 0xF0 .. 0xF5 */ |
c60ee5e7 | 4788 | |
e98a93eb | 4789 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4790 | |
e98a93eb GV |
4791 | "attn", /* VK_ATTN 0xF6 */ |
4792 | "crsel", /* VK_CRSEL 0xF7 */ | |
4793 | "exsel", /* VK_EXSEL 0xF8 */ | |
4794 | "ereof", /* VK_EREOF 0xF9 */ | |
4795 | "play", /* VK_PLAY 0xFA */ | |
4796 | "zoom", /* VK_ZOOM 0xFB */ | |
4797 | "noname", /* VK_NONAME 0xFC */ | |
4798 | "pa1", /* VK_PA1 0xFD */ | |
4799 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4800 | 0 /* 0xFF */ |
e98a93eb GV |
4801 | }; |
4802 | ||
04f215f0 | 4803 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4804 | |
ed3230db DL |
4805 | /* This should be dealt with in XTread_socket now, and that doesn't |
4806 | depend on the client system having the Kana syms defined. See also | |
4807 | the XK_kana_A case below. */ | |
4808 | #if 0 | |
37cd9f30 KH |
4809 | #ifdef XK_kana_A |
4810 | static char *lispy_kana_keys[] = | |
4811 | { | |
4812 | /* X Keysym value */ | |
4813 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4814 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4815 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4816 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4817 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4818 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4819 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4820 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4821 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4822 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 4823 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
4824 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
4825 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4826 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4827 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4828 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4829 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4830 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4831 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4832 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4833 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4834 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4835 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4836 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4837 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4838 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4839 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4840 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4841 | }; | |
4842 | #endif /* XK_kana_A */ | |
ed3230db | 4843 | #endif /* 0 */ |
37cd9f30 | 4844 | |
04f215f0 RS |
4845 | #define FUNCTION_KEY_OFFSET 0xff00 |
4846 | ||
284f4730 JB |
4847 | /* You'll notice that this table is arranged to be conveniently |
4848 | indexed by X Windows keysym values. */ | |
4849 | static char *lispy_function_keys[] = | |
4850 | { | |
4851 | /* X Keysym value */ | |
4852 | ||
75045dcb RS |
4853 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4854 | "backspace", "tab", "linefeed", "clear", | |
4855 | 0, "return", 0, 0, | |
4856 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4857 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4858 | 0, 0, 0, 0, |
75045dcb RS |
4859 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4860 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4861 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4862 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4863 | "eisu-toggle", /* 0xff30...3f */ | |
4864 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4865 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4866 | ||
75045dcb RS |
4867 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4868 | "down", "prior", "next", "end", | |
4869 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4870 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4871 | "print", | |
4872 | "execute", | |
4873 | "insert", | |
4874 | 0, /* 0xff64 */ | |
4875 | "undo", | |
4876 | "redo", | |
4877 | "menu", | |
4878 | "find", | |
4879 | "cancel", | |
4880 | "help", | |
4881 | "break", /* 0xff6b */ | |
4882 | ||
75045dcb RS |
4883 | 0, 0, 0, 0, |
4884 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4885 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4886 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4887 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4888 | "kp-tab", /* 0xff89 */ | |
4889 | 0, 0, 0, | |
4890 | "kp-enter", /* 0xff8d */ | |
4891 | 0, 0, 0, | |
4892 | "kp-f1", /* 0xff91 */ | |
4893 | "kp-f2", | |
4894 | "kp-f3", | |
4895 | "kp-f4", | |
872157e7 RS |
4896 | "kp-home", /* 0xff95 */ |
4897 | "kp-left", | |
4898 | "kp-up", | |
4899 | "kp-right", | |
4900 | "kp-down", | |
4901 | "kp-prior", /* kp-page-up */ | |
4902 | "kp-next", /* kp-page-down */ | |
4903 | "kp-end", | |
4904 | "kp-begin", | |
4905 | "kp-insert", | |
4906 | "kp-delete", | |
4907 | 0, /* 0xffa0 */ | |
4908 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4909 | "kp-multiply", /* 0xffaa */ |
4910 | "kp-add", | |
4911 | "kp-separator", | |
4912 | "kp-subtract", | |
4913 | "kp-decimal", | |
4914 | "kp-divide", /* 0xffaf */ | |
4915 | "kp-0", /* 0xffb0 */ | |
4916 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4917 | 0, /* 0xffba */ | |
4918 | 0, 0, | |
4919 | "kp-equal", /* 0xffbd */ | |
4920 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4921 | "f2", |
4922 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4923 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4924 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4925 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4926 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4927 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4928 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4929 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4930 | }; |
284f4730 | 4931 | |
04f215f0 RS |
4932 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4933 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4934 | ||
4935 | static char *iso_lispy_function_keys[] = | |
4936 | { | |
4937 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4938 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4939 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4940 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4941 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
4942 | "iso-move-line-up", "iso-move-line-down", |
4943 | "iso-partial-line-up", "iso-partial-line-down", | |
4944 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
4945 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
4946 | "iso-release-margin-left", "iso-release-margin-right", | |
4947 | "iso-release-both-margins", | |
4948 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4949 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4950 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4951 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4952 | }; | |
4953 | ||
4954 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4955 | |
8e1e4240 | 4956 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4957 | |
8006e4bb JR |
4958 | static char *lispy_wheel_names[] = |
4959 | { | |
4960 | "wheel-up", "wheel-down" | |
4961 | }; | |
4962 | ||
a24dc617 RS |
4963 | /* drag-n-drop events are generated when a set of selected files are |
4964 | dragged from another application and dropped onto an Emacs window. */ | |
4965 | static char *lispy_drag_n_drop_names[] = | |
4966 | { | |
4967 | "drag-n-drop" | |
4968 | }; | |
4969 | ||
3c370943 | 4970 | /* Scroll bar parts. */ |
4bb994d1 | 4971 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 4972 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 4973 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 4974 | |
3c370943 JB |
4975 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4976 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4977 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 4978 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
4979 | }; |
4980 | ||
5bf68f6e AS |
4981 | /* User signal events. */ |
4982 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4983 | ||
4984 | Lisp_Object *lispy_user_signals[] = | |
4985 | { | |
4986 | &Qusr1_signal, &Qusr2_signal | |
4987 | }; | |
4988 | ||
4bb994d1 | 4989 | |
7b4aedb9 | 4990 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4991 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4992 | |
4993 | The elements have the form | |
4994 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4995 | where REST is the cdr of a position as it would be reported in the event. | |
4996 | ||
4997 | The make_lispy_event function stores positions here to tell the | |
4998 | difference between click and drag events, and to store the starting | |
4999 | location to be included in drag events. */ | |
5000 | ||
5001 | static Lisp_Object button_down_location; | |
88cb0656 | 5002 | |
fbcd35bd JB |
5003 | /* Information about the most recent up-going button event: Which |
5004 | button, what location, and what time. */ | |
5005 | ||
559f9d04 RS |
5006 | static int last_mouse_button; |
5007 | static int last_mouse_x; | |
5008 | static int last_mouse_y; | |
5009 | static unsigned long button_down_time; | |
fbcd35bd | 5010 | |
222d557c GM |
5011 | /* The maximum time between clicks to make a double-click, or Qnil to |
5012 | disable double-click detection, or Qt for no time limit. */ | |
5013 | ||
564dc952 | 5014 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 5015 | |
222d557c GM |
5016 | /* Maximum number of pixels the mouse may be moved between clicks |
5017 | to make a double-click. */ | |
5018 | ||
31ade731 | 5019 | EMACS_INT double_click_fuzz; |
222d557c | 5020 | |
fbcd35bd JB |
5021 | /* The number of clicks in this multiple-click. */ |
5022 | ||
5023 | int double_click_count; | |
5024 | ||
3d566707 KS |
5025 | /* Return position of a mouse click or wheel event */ |
5026 | ||
5027 | static Lisp_Object | |
5028 | make_lispy_position (f, x, y, time) | |
5029 | struct frame *f; | |
5030 | Lisp_Object *x, *y; | |
5031 | unsigned long time; | |
5032 | { | |
5033 | Lisp_Object window; | |
5034 | enum window_part part; | |
5035 | Lisp_Object posn = Qnil; | |
5036 | Lisp_Object extra_info = Qnil; | |
5037 | int wx, wy; | |
5038 | ||
5039 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
5040 | if (f) | |
5041 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
5042 | &part, &wx, &wy, 0); | |
5043 | else | |
5044 | window = Qnil; | |
5045 | ||
5046 | if (WINDOWP (window)) | |
5047 | { | |
5048 | /* It's a click in window window at frame coordinates (x,y) */ | |
5049 | struct window *w = XWINDOW (window); | |
eee5863b | 5050 | Lisp_Object string_info = Qnil; |
3d566707 | 5051 | int textpos = -1, rx = -1, ry = -1; |
45de137a | 5052 | int dx = -1, dy = -1; |
eee5863b KS |
5053 | int width = -1, height = -1; |
5054 | Lisp_Object object = Qnil; | |
3d566707 KS |
5055 | |
5056 | /* Set event coordinates to window-relative coordinates | |
5057 | for constructing the Lisp event below. */ | |
5058 | XSETINT (*x, wx); | |
5059 | XSETINT (*y, wy); | |
5060 | ||
5061 | if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
5062 | { | |
5063 | /* Mode line or header line. Look for a string under | |
5064 | the mouse that may have a `local-map' property. */ | |
5065 | Lisp_Object string; | |
5066 | int charpos; | |
5067 | ||
5068 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5069 | rx = wx, ry = wy; | |
eee5863b KS |
5070 | string = mode_line_string (w, part, &rx, &ry, &charpos, |
5071 | &object, &dx, &dy, &width, &height); | |
3d566707 | 5072 | if (STRINGP (string)) |
eee5863b | 5073 | string_info = Fcons (string, make_number (charpos)); |
3d566707 KS |
5074 | if (w == XWINDOW (selected_window)) |
5075 | textpos = PT; | |
5076 | else | |
5077 | textpos = XMARKER (w->pointm)->charpos; | |
5078 | } | |
5079 | else if (part == ON_VERTICAL_BORDER) | |
5080 | { | |
5081 | posn = Qvertical_line; | |
5082 | wx = -1; | |
45de137a | 5083 | dx = 0; |
eee5863b | 5084 | width = 1; |
3d566707 KS |
5085 | } |
5086 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5087 | { | |
5088 | Lisp_Object string; | |
5089 | int charpos; | |
2320865d | 5090 | |
3d566707 KS |
5091 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; |
5092 | rx = wx, ry = wy; | |
eee5863b KS |
5093 | string = marginal_area_string (w, part, &rx, &ry, &charpos, |
5094 | &object, &dx, &dy, &width, &height); | |
3d566707 | 5095 | if (STRINGP (string)) |
eee5863b | 5096 | string_info = Fcons (string, make_number (charpos)); |
3d566707 KS |
5097 | } |
5098 | else if (part == ON_LEFT_FRINGE || part == ON_RIGHT_FRINGE) | |
5099 | { | |
5100 | posn = (part == ON_LEFT_FRINGE) ? Qleft_fringe : Qright_fringe; | |
5101 | rx = 0; | |
45de137a KS |
5102 | dx = wx; |
5103 | if (part == ON_RIGHT_FRINGE) | |
5104 | dx -= (window_box_width (w, LEFT_MARGIN_AREA) | |
5105 | + window_box_width (w, TEXT_AREA) | |
5106 | + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5107 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5108 | : 0)); | |
5109 | else if (!WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)) | |
5110 | dx -= window_box_width (w, LEFT_MARGIN_AREA); | |
3d566707 KS |
5111 | } |
5112 | ||
5113 | if (textpos < 0) | |
5114 | { | |
eee5863b | 5115 | Lisp_Object string2, object2 = Qnil; |
3d566707 | 5116 | struct display_pos p; |
45de137a | 5117 | int dx2, dy2; |
eee5863b | 5118 | int width2, height2; |
3d566707 | 5119 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); |
eee5863b KS |
5120 | string2 = buffer_posn_from_coords (w, &wx, &wy, &p, |
5121 | &object2, &dx2, &dy2, | |
5122 | &width2, &height2); | |
3d566707 | 5123 | textpos = CHARPOS (p.pos); |
45de137a KS |
5124 | if (rx < 0) rx = wx; |
5125 | if (ry < 0) ry = wy; | |
5126 | if (dx < 0) dx = dx2; | |
5127 | if (dy < 0) dy = dy2; | |
eee5863b KS |
5128 | if (width < 0) width = width2; |
5129 | if (height < 0) height = height2; | |
3d566707 KS |
5130 | |
5131 | if (NILP (posn)) | |
5132 | { | |
5133 | posn = make_number (textpos); | |
eee5863b KS |
5134 | if (STRINGP (string2)) |
5135 | string_info = Fcons (string2, | |
5136 | make_number (CHARPOS (p.string_pos))); | |
3d566707 | 5137 | } |
eee5863b KS |
5138 | if (NILP (object)) |
5139 | object = object2; | |
3d566707 KS |
5140 | } |
5141 | ||
eee5863b KS |
5142 | #ifdef HAVE_WINDOW_SYSTEM |
5143 | if (IMAGEP (object)) | |
5144 | { | |
5145 | Lisp_Object image_map, hotspot; | |
5146 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5147 | !NILP (image_map)) | |
5148 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5149 | CONSP (hotspot)) | |
5150 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5151 | posn = XCAR (hotspot); | |
5152 | } | |
5153 | #endif | |
5154 | ||
5155 | /* Object info */ | |
3d566707 | 5156 | extra_info = Fcons (object, |
eee5863b KS |
5157 | Fcons (Fcons (make_number (dx), |
5158 | make_number (dy)), | |
5159 | Fcons (Fcons (make_number (width), | |
5160 | make_number (height)), | |
5161 | Qnil))); | |
5162 | ||
5163 | /* String info */ | |
5164 | extra_info = Fcons (string_info, | |
3d566707 KS |
5165 | Fcons (make_number (textpos), |
5166 | Fcons (Fcons (make_number (rx), | |
5167 | make_number (ry)), | |
eee5863b | 5168 | extra_info))); |
3d566707 KS |
5169 | } |
5170 | else if (f != 0) | |
5171 | { | |
5172 | XSETFRAME (window, f); | |
5173 | } | |
5174 | else | |
5175 | { | |
5176 | window = Qnil; | |
5177 | XSETFASTINT (*x, 0); | |
5178 | XSETFASTINT (*y, 0); | |
5179 | } | |
5180 | ||
5181 | return Fcons (window, | |
5182 | Fcons (posn, | |
5183 | Fcons (Fcons (*x, *y), | |
5184 | Fcons (make_number (time), | |
5185 | extra_info)))); | |
5186 | } | |
5187 | ||
284f4730 JB |
5188 | /* Given a struct input_event, build the lisp event which represents |
5189 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5190 | movement buffer, which should have a movement event in it. |
5191 | ||
5192 | Note that events must be passed to this function in the order they | |
5193 | are received; this function stores the location of button presses | |
5194 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5195 | |
5196 | static Lisp_Object | |
5197 | make_lispy_event (event) | |
5198 | struct input_event *event; | |
5199 | { | |
79a7046c RS |
5200 | int i; |
5201 | ||
0220c518 | 5202 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5203 | { |
284f4730 | 5204 | /* A simple keystroke. */ |
3b8f9651 | 5205 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 5206 | { |
9343ab07 | 5207 | Lisp_Object lispy_c; |
e9bf89a0 | 5208 | int c = event->code & 0377; |
5a1c6df8 JB |
5209 | /* Turn ASCII characters into control characters |
5210 | when proper. */ | |
5211 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
5212 | c = make_ctrl_char (c); |
5213 | ||
5214 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
5215 | just above, and the shift key was taken care of by the X code, | |
5216 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
5217 | c |= (event->modifiers |
5218 | & (meta_modifier | alt_modifier | |
5219 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
5220 | /* Distinguish Shift-SPC from SPC. */ |
5221 | if ((event->code & 0377) == 040 | |
5222 | && event->modifiers & shift_modifier) | |
5223 | c |= shift_modifier; | |
559f9d04 | 5224 | button_down_time = 0; |
bb9e9bed | 5225 | XSETFASTINT (lispy_c, c); |
9343ab07 | 5226 | return lispy_c; |
86e5706b | 5227 | } |
284f4730 | 5228 | |
3b8f9651 | 5229 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5230 | { |
5231 | Lisp_Object lispy_c; | |
24d80a06 | 5232 | int c = event->code; |
a50e723f | 5233 | |
24d80a06 SM |
5234 | /* Add in the other modifier bits. We took care of ctrl_modifier |
5235 | just above, and the shift key was taken care of by the X code, | |
5236 | and applied to control characters by make_ctrl_char. */ | |
5237 | c |= (event->modifiers | |
5238 | & (meta_modifier | alt_modifier | |
5239 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
5240 | /* What about the `shift' modifier ? */ | |
5241 | button_down_time = 0; | |
5242 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5243 | return lispy_c; |
5244 | } | |
5245 | ||
284f4730 JB |
5246 | /* A function key. The symbol may need to have modifier prefixes |
5247 | tacked onto it. */ | |
3b8f9651 | 5248 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5249 | button_down_time = 0; |
e9bf89a0 RS |
5250 | |
5251 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5252 | if (event->code == lispy_accent_codes[i]) | |
5253 | return modify_event_symbol (i, | |
5254 | event->modifiers, | |
80e4aa30 | 5255 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5256 | lispy_accent_keys, &accent_key_syms, |
5257 | (sizeof (lispy_accent_keys) | |
5258 | / sizeof (lispy_accent_keys[0]))); | |
5259 | ||
ed3230db | 5260 | #if 0 |
37cd9f30 KH |
5261 | #ifdef XK_kana_A |
5262 | if (event->code >= 0x400 && event->code < 0x500) | |
5263 | return modify_event_symbol (event->code - 0x400, | |
5264 | event->modifiers & ~shift_modifier, | |
5265 | Qfunction_key, Qnil, | |
5266 | lispy_kana_keys, &func_key_syms, | |
5267 | (sizeof (lispy_kana_keys) | |
5268 | / sizeof (lispy_kana_keys[0]))); | |
5269 | #endif /* XK_kana_A */ | |
ed3230db | 5270 | #endif /* 0 */ |
37cd9f30 | 5271 | |
111c4138 | 5272 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5273 | if (event->code < FUNCTION_KEY_OFFSET |
5274 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5275 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5276 | event->modifiers, | |
5277 | Qfunction_key, Qnil, | |
5278 | iso_lispy_function_keys, &func_key_syms, | |
5279 | (sizeof (iso_lispy_function_keys) | |
5280 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5281 | #endif |
656280a6 | 5282 | |
4c8bc894 SM |
5283 | /* Handle system-specific or unknown keysyms. */ |
5284 | if (event->code & (1 << 28) | |
5285 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5286 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5287 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5288 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5289 | { |
4c8bc894 SM |
5290 | /* We need to use an alist rather than a vector as the cache |
5291 | since we can't make a vector long enuf. */ | |
5292 | if (NILP (current_kboard->system_key_syms)) | |
5293 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5294 | return modify_event_symbol (event->code, | |
5295 | event->modifiers, | |
5296 | Qfunction_key, | |
5297 | current_kboard->Vsystem_key_alist, | |
5298 | 0, ¤t_kboard->system_key_syms, | |
5299 | (unsigned) -1); | |
656280a6 | 5300 | } |
656280a6 GM |
5301 | |
5302 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5303 | event->modifiers, | |
5304 | Qfunction_key, Qnil, | |
5305 | lispy_function_keys, &func_key_syms, | |
5306 | (sizeof (lispy_function_keys) | |
5307 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5308 | |
514354e9 | 5309 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5310 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5311 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5312 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5313 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5314 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5315 | #endif |
284f4730 | 5316 | { |
e9bf89a0 | 5317 | int button = event->code; |
559f9d04 | 5318 | int is_double; |
7b4aedb9 | 5319 | Lisp_Object position; |
dbc4e1c1 JB |
5320 | Lisp_Object *start_pos_ptr; |
5321 | Lisp_Object start_pos; | |
284f4730 | 5322 | |
8c907a56 GM |
5323 | position = Qnil; |
5324 | ||
7b4aedb9 | 5325 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5326 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5327 | { |
c5cf2109 | 5328 | struct frame *f = XFRAME (event->frame_or_window); |
3d566707 | 5329 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
9e20143a | 5330 | int row, column; |
3d566707 | 5331 | #endif |
9e20143a | 5332 | |
5da3133a RS |
5333 | /* Ignore mouse events that were made on frame that |
5334 | have been deleted. */ | |
5335 | if (! FRAME_LIVE_P (f)) | |
5336 | return Qnil; | |
5337 | ||
3d566707 | 5338 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
7ee32cda GM |
5339 | /* EVENT->x and EVENT->y are frame-relative pixel |
5340 | coordinates at this place. Under old redisplay, COLUMN | |
5341 | and ROW are set to frame relative glyph coordinates | |
5342 | which are then used to determine whether this click is | |
5343 | in a menu (non-toolkit version). */ | |
5344 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5345 | &column, &row, NULL, 1); | |
7b4aedb9 | 5346 | |
eef045bf RS |
5347 | /* In the non-toolkit version, clicks on the menu bar |
5348 | are ordinary button events in the event buffer. | |
5349 | Distinguish them, and invoke the menu. | |
5350 | ||
5351 | (In the toolkit version, the toolkit handles the menu bar | |
5352 | and Emacs doesn't know about it until after the user | |
5353 | makes a selection.) */ | |
2ee250ec RS |
5354 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5355 | && (event->modifiers & down_modifier)) | |
bb936752 | 5356 | { |
b7c49376 | 5357 | Lisp_Object items, item; |
0a0e8fe6 RS |
5358 | int hpos; |
5359 | int i; | |
5360 | ||
2ee250ec | 5361 | #if 0 |
0a0e8fe6 RS |
5362 | /* Activate the menu bar on the down event. If the |
5363 | up event comes in before the menu code can deal with it, | |
5364 | just ignore it. */ | |
5365 | if (! (event->modifiers & down_modifier)) | |
5366 | return Qnil; | |
2ee250ec | 5367 | #endif |
0aafc975 | 5368 | |
7ee32cda | 5369 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5370 | item = Qnil; |
5ec75a55 | 5371 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5372 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5373 | { |
5374 | Lisp_Object pos, string; | |
129004d3 GM |
5375 | string = AREF (items, i + 1); |
5376 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5377 | if (NILP (string)) |
5378 | break; | |
9e20143a | 5379 | if (column >= XINT (pos) |
d5db4077 | 5380 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5381 | { |
129004d3 | 5382 | item = AREF (items, i); |
b7c49376 RS |
5383 | break; |
5384 | } | |
5ec75a55 | 5385 | } |
9e20143a | 5386 | |
7ee32cda GM |
5387 | /* ELisp manual 2.4b says (x y) are window relative but |
5388 | code says they are frame-relative. */ | |
5ec75a55 RS |
5389 | position |
5390 | = Fcons (event->frame_or_window, | |
5391 | Fcons (Qmenu_bar, | |
5392 | Fcons (Fcons (event->x, event->y), | |
5393 | Fcons (make_number (event->timestamp), | |
5394 | Qnil)))); | |
5395 | ||
b7c49376 | 5396 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5397 | } |
488dd4c4 | 5398 | #endif /* not USE_X_TOOLKIT && not USE_GTK */ |
0aafc975 | 5399 | |
3d566707 KS |
5400 | position = make_lispy_position (f, &event->x, &event->y, |
5401 | event->timestamp); | |
284f4730 | 5402 | } |
7ee32cda | 5403 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5404 | else |
88cb0656 | 5405 | { |
7ee32cda | 5406 | /* It's a scrollbar click. */ |
3d566707 | 5407 | Lisp_Object window; |
9e20143a RS |
5408 | Lisp_Object portion_whole; |
5409 | Lisp_Object part; | |
5410 | ||
5411 | window = event->frame_or_window; | |
5412 | portion_whole = Fcons (event->x, event->y); | |
5413 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5414 | |
db08707d RS |
5415 | position |
5416 | = Fcons (window, | |
5417 | Fcons (Qvertical_scroll_bar, | |
5418 | Fcons (portion_whole, | |
5419 | Fcons (make_number (event->timestamp), | |
5420 | Fcons (part, Qnil))))); | |
88cb0656 | 5421 | } |
7ee32cda | 5422 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5423 | |
129004d3 | 5424 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5425 | { |
5426 | button_down_location = larger_vector (button_down_location, | |
5427 | button + 1, Qnil); | |
5428 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5429 | } | |
c60ee5e7 | 5430 | |
129004d3 | 5431 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5432 | start_pos = *start_pos_ptr; |
5433 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5434 | |
c5cf2109 GM |
5435 | { |
5436 | /* On window-system frames, use the value of | |
5437 | double-click-fuzz as is. On other frames, interpret it | |
5438 | as a multiple of 1/8 characters. */ | |
5439 | struct frame *f; | |
5440 | int fuzz; | |
5441 | ||
5442 | if (WINDOWP (event->frame_or_window)) | |
5443 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5444 | else if (FRAMEP (event->frame_or_window)) | |
5445 | f = XFRAME (event->frame_or_window); | |
5446 | else | |
5447 | abort (); | |
5448 | ||
5449 | if (FRAME_WINDOW_P (f)) | |
5450 | fuzz = double_click_fuzz; | |
5451 | else | |
5452 | fuzz = double_click_fuzz / 8; | |
5453 | ||
5454 | is_double = (button == last_mouse_button | |
5455 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5456 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5457 | && button_down_time != 0 | |
5458 | && (EQ (Vdouble_click_time, Qt) | |
5459 | || (INTEGERP (Vdouble_click_time) | |
5460 | && ((int)(event->timestamp - button_down_time) | |
5461 | < XINT (Vdouble_click_time))))); | |
5462 | } | |
c60ee5e7 | 5463 | |
559f9d04 RS |
5464 | last_mouse_button = button; |
5465 | last_mouse_x = XINT (event->x); | |
5466 | last_mouse_y = XINT (event->y); | |
5467 | ||
7b4aedb9 JB |
5468 | /* If this is a button press, squirrel away the location, so |
5469 | we can decide later whether it was a click or a drag. */ | |
5470 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5471 | { |
5472 | if (is_double) | |
5473 | { | |
5474 | double_click_count++; | |
5475 | event->modifiers |= ((double_click_count > 2) | |
5476 | ? triple_modifier | |
5477 | : double_modifier); | |
5478 | } | |
5479 | else | |
5480 | double_click_count = 1; | |
5481 | button_down_time = event->timestamp; | |
5482 | *start_pos_ptr = Fcopy_alist (position); | |
5483 | } | |
7b4aedb9 | 5484 | |
88cb0656 | 5485 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5486 | see if this was a click or a drag. */ |
88cb0656 JB |
5487 | else if (event->modifiers & up_modifier) |
5488 | { | |
129004d3 GM |
5489 | /* If we did not see a down before this up, ignore the up. |
5490 | Probably this happened because the down event chose a | |
5491 | menu item. It would be an annoyance to treat the | |
5492 | release of the button that chose the menu item as a | |
5493 | separate event. */ | |
48e416d4 | 5494 | |
8c18cbfb | 5495 | if (!CONSP (start_pos)) |
48e416d4 RS |
5496 | return Qnil; |
5497 | ||
88cb0656 | 5498 | event->modifiers &= ~up_modifier; |
48e416d4 | 5499 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5500 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5501 | event->modifiers |= click_modifier; |
5502 | else | |
48e416d4 | 5503 | #endif |
dbc4e1c1 | 5504 | { |
9b8eb840 | 5505 | Lisp_Object down; |
d31053f9 | 5506 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5507 | |
d31053f9 RS |
5508 | /* The third element of every position |
5509 | should be the (x,y) pair. */ | |
5510 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5511 | if (CONSP (down) |
5512 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5513 | { |
7a6a97d7 SM |
5514 | xdiff = XFASTINT (event->x) - XFASTINT (XCAR (down)); |
5515 | ydiff = XFASTINT (event->y) - XFASTINT (XCDR (down)); | |
d31053f9 RS |
5516 | } |
5517 | ||
5518 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5519 | && ydiff < double_click_fuzz | |
5520 | && ydiff > - double_click_fuzz) | |
5521 | /* Mouse hasn't moved (much). */ | |
129004d3 | 5522 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5523 | else |
5524 | { | |
d31053f9 RS |
5525 | button_down_time = 0; |
5526 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5527 | } |
c60ee5e7 | 5528 | |
bc536d84 RS |
5529 | /* Don't check is_double; treat this as multiple |
5530 | if the down-event was multiple. */ | |
5531 | if (double_click_count > 1) | |
5532 | event->modifiers |= ((double_click_count > 2) | |
5533 | ? triple_modifier | |
5534 | : double_modifier); | |
dbc4e1c1 | 5535 | } |
88cb0656 JB |
5536 | } |
5537 | else | |
5538 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5539 | the up_modifier set. */ |
88cb0656 JB |
5540 | abort (); |
5541 | ||
88cb0656 | 5542 | { |
7b4aedb9 | 5543 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5544 | Lisp_Object head; |
5545 | ||
5546 | head = modify_event_symbol (button, | |
5547 | event->modifiers, | |
8e1e4240 GM |
5548 | Qmouse_click, Vlispy_mouse_stem, |
5549 | NULL, | |
5550 | &mouse_syms, | |
5551 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5552 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5553 | return Fcons (head, |
5554 | Fcons (start_pos, | |
5555 | Fcons (position, | |
5556 | Qnil))); | |
fbcd35bd JB |
5557 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5558 | return Fcons (head, | |
5559 | Fcons (position, | |
5560 | Fcons (make_number (double_click_count), | |
5561 | Qnil))); | |
88cb0656 JB |
5562 | else |
5563 | return Fcons (head, | |
7b4aedb9 | 5564 | Fcons (position, |
88cb0656 JB |
5565 | Qnil)); |
5566 | } | |
284f4730 | 5567 | } |
db08707d | 5568 | |
8006e4bb JR |
5569 | case WHEEL_EVENT: |
5570 | { | |
5571 | Lisp_Object position; | |
8006e4bb | 5572 | Lisp_Object head; |
2320865d | 5573 | |
87d386ff | 5574 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5575 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5576 | |
5577 | /* Ignore wheel events that were made on frame that have been | |
5578 | deleted. */ | |
5579 | if (! FRAME_LIVE_P (f)) | |
5580 | return Qnil; | |
5581 | ||
3d566707 KS |
5582 | position = make_lispy_position (f, &event->x, &event->y, |
5583 | event->timestamp); | |
87d386ff JR |
5584 | |
5585 | /* Set double or triple modifiers to indicate the wheel speed. */ | |
5586 | { | |
5587 | /* On window-system frames, use the value of | |
5588 | double-click-fuzz as is. On other frames, interpret it | |
5589 | as a multiple of 1/8 characters. */ | |
5590 | struct frame *f; | |
5591 | int fuzz; | |
5592 | int is_double; | |
5593 | ||
5594 | if (WINDOWP (event->frame_or_window)) | |
5595 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5596 | else if (FRAMEP (event->frame_or_window)) | |
5597 | f = XFRAME (event->frame_or_window); | |
5598 | else | |
5599 | abort (); | |
5600 | ||
5601 | if (FRAME_WINDOW_P (f)) | |
5602 | fuzz = double_click_fuzz; | |
5603 | else | |
5604 | fuzz = double_click_fuzz / 8; | |
5605 | ||
5606 | is_double = (last_mouse_button < 0 | |
5607 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5608 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5609 | && button_down_time != 0 | |
5610 | && (EQ (Vdouble_click_time, Qt) | |
5611 | || (INTEGERP (Vdouble_click_time) | |
5612 | && ((int)(event->timestamp - button_down_time) | |
5613 | < XINT (Vdouble_click_time))))); | |
5614 | if (is_double) | |
5615 | { | |
5616 | double_click_count++; | |
5617 | event->modifiers |= ((double_click_count > 2) | |
5618 | ? triple_modifier | |
5619 | : double_modifier); | |
5620 | } | |
5621 | else | |
5622 | { | |
5623 | double_click_count = 1; | |
5624 | event->modifiers |= click_modifier; | |
5625 | } | |
5626 | ||
5627 | button_down_time = event->timestamp; | |
5628 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5629 | last_mouse_button = -1; | |
5630 | last_mouse_x = XINT (event->x); | |
5631 | last_mouse_y = XINT (event->y); | |
5632 | } | |
5633 | ||
5634 | { | |
5635 | int symbol_num; | |
5636 | ||
5637 | if (event->modifiers & up_modifier) | |
5638 | { | |
5639 | /* Emit a wheel-up event. */ | |
5640 | event->modifiers &= ~up_modifier; | |
5641 | symbol_num = 0; | |
5642 | } | |
5643 | else if (event->modifiers & down_modifier) | |
5644 | { | |
5645 | /* Emit a wheel-down event. */ | |
5646 | event->modifiers &= ~down_modifier; | |
5647 | symbol_num = 1; | |
5648 | } | |
5649 | else | |
5650 | /* Every wheel event should either have the down_modifier or | |
5651 | the up_modifier set. */ | |
5652 | abort (); | |
5653 | ||
5654 | /* Get the symbol we should use for the wheel event. */ | |
5655 | head = modify_event_symbol (symbol_num, | |
5656 | event->modifiers, | |
5657 | Qmouse_click, | |
5658 | Qnil, | |
5659 | lispy_wheel_names, | |
5660 | &wheel_syms, | |
5661 | ASIZE (wheel_syms)); | |
5662 | } | |
5663 | ||
5664 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5665 | return Fcons (head, | |
5666 | Fcons (position, | |
5667 | Fcons (make_number (double_click_count), | |
5668 | Qnil))); | |
5669 | else | |
5670 | return Fcons (head, | |
5671 | Fcons (position, | |
5672 | Qnil)); | |
8006e4bb JR |
5673 | } |
5674 | ||
5675 | ||
05be3964 | 5676 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5677 | |
5678 | /* We don't have down and up events if using toolkit scroll bars, | |
5679 | so make this always a click event. Store in the `part' of | |
5680 | the Lisp event a symbol which maps to the following actions: | |
5681 | ||
5682 | `above_handle' page up | |
5683 | `below_handle' page down | |
5684 | `up' line up | |
5685 | `down' line down | |
5686 | `top' top of buffer | |
5687 | `bottom' bottom of buffer | |
5688 | `handle' thumb has been dragged. | |
5689 | `end-scroll' end of interaction with scroll bar | |
5690 | ||
5691 | The incoming input_event contains in its `part' member an | |
5692 | index of type `enum scroll_bar_part' which we can use as an | |
5693 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 5694 | |
3b8f9651 | 5695 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5696 | { |
5697 | Lisp_Object position, head, window, portion_whole, part; | |
5698 | ||
5699 | window = event->frame_or_window; | |
5700 | portion_whole = Fcons (event->x, event->y); | |
5701 | part = *scroll_bar_parts[(int) event->part]; | |
5702 | ||
5703 | position | |
5704 | = Fcons (window, | |
5705 | Fcons (Qvertical_scroll_bar, | |
5706 | Fcons (portion_whole, | |
5707 | Fcons (make_number (event->timestamp), | |
5708 | Fcons (part, Qnil))))); | |
5709 | ||
5710 | /* Always treat scroll bar events as clicks. */ | |
5711 | event->modifiers |= click_modifier; | |
05be3964 | 5712 | event->modifiers &= ~up_modifier; |
7ee32cda | 5713 | |
257f40f2 JD |
5714 | if (event->code >= ASIZE (mouse_syms)) |
5715 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
5716 | ||
7ee32cda GM |
5717 | /* Get the symbol we should use for the mouse click. */ |
5718 | head = modify_event_symbol (event->code, | |
5719 | event->modifiers, | |
14e40288 | 5720 | Qmouse_click, |
8e1e4240 GM |
5721 | Vlispy_mouse_stem, |
5722 | NULL, &mouse_syms, | |
5723 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5724 | return Fcons (head, Fcons (position, Qnil)); |
5725 | } | |
c60ee5e7 | 5726 | |
7ee32cda GM |
5727 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
5728 | ||
db08707d | 5729 | #ifdef WINDOWSNT |
3b8f9651 | 5730 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5731 | { |
5732 | int button = event->code; | |
5733 | int is_double; | |
5734 | Lisp_Object position; | |
5735 | Lisp_Object *start_pos_ptr; | |
5736 | Lisp_Object start_pos; | |
5737 | ||
db08707d RS |
5738 | { |
5739 | Lisp_Object window; | |
5740 | Lisp_Object portion_whole; | |
5741 | Lisp_Object part; | |
5742 | ||
5743 | window = event->frame_or_window; | |
5744 | portion_whole = Fcons (event->x, event->y); | |
5745 | part = *scroll_bar_parts[(int) event->part]; | |
5746 | ||
e8886a1d RS |
5747 | position |
5748 | = Fcons (window, | |
5749 | Fcons (Qvertical_scroll_bar, | |
5750 | Fcons (portion_whole, | |
5751 | Fcons (make_number (event->timestamp), | |
5752 | Fcons (part, Qnil))))); | |
db08707d RS |
5753 | } |
5754 | ||
fbd6baed | 5755 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5756 | event->modifiers |= click_modifier; |
5757 | ||
5758 | { | |
5759 | /* Get the symbol we should use for the mouse click. */ | |
5760 | Lisp_Object head; | |
5761 | ||
5762 | head = modify_event_symbol (button, | |
5763 | event->modifiers, | |
c60ee5e7 | 5764 | Qmouse_click, |
8e1e4240 GM |
5765 | Vlispy_mouse_stem, |
5766 | NULL, &mouse_syms, | |
5767 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5768 | return Fcons (head, |
5769 | Fcons (position, | |
5770 | Qnil)); | |
5771 | } | |
5772 | } | |
1e7c162f | 5773 | #endif /* WINDOWSNT */ |
a24dc617 | 5774 | |
3b8f9651 | 5775 | case DRAG_N_DROP_EVENT: |
a24dc617 | 5776 | { |
a24dc617 | 5777 | FRAME_PTR f; |
3d566707 | 5778 | Lisp_Object head, position; |
a24dc617 | 5779 | Lisp_Object files; |
a24dc617 RS |
5780 | |
5781 | /* The frame_or_window field should be a cons of the frame in | |
5782 | which the event occurred and a list of the filenames | |
5783 | dropped. */ | |
5784 | if (! CONSP (event->frame_or_window)) | |
5785 | abort (); | |
5786 | ||
7539e11f KR |
5787 | f = XFRAME (XCAR (event->frame_or_window)); |
5788 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5789 | |
5790 | /* Ignore mouse events that were made on frames that | |
5791 | have been deleted. */ | |
5792 | if (! FRAME_LIVE_P (f)) | |
5793 | return Qnil; | |
afabdbe5 | 5794 | |
3d566707 KS |
5795 | position = make_lispy_position (f, &event->x, &event->y, |
5796 | event->timestamp); | |
5797 | ||
5798 | head = modify_event_symbol (0, event->modifiers, | |
5799 | Qdrag_n_drop, Qnil, | |
5800 | lispy_drag_n_drop_names, | |
5801 | &drag_n_drop_syms, 1); | |
5802 | return Fcons (head, | |
5803 | Fcons (position, | |
5804 | Fcons (files, | |
5805 | Qnil))); | |
a24dc617 | 5806 | } |
514354e9 | 5807 | #endif /* HAVE_MOUSE */ |
284f4730 | 5808 | |
488dd4c4 JD |
5809 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
5810 | || defined (USE_GTK) | |
da8f7368 GM |
5811 | case MENU_BAR_EVENT: |
5812 | if (EQ (event->arg, event->frame_or_window)) | |
5813 | /* This is the prefix key. We translate this to | |
5814 | `(menu_bar)' because the code in keyboard.c for menu | |
5815 | events, which we use, relies on this. */ | |
5816 | return Fcons (Qmenu_bar, Qnil); | |
5817 | return event->arg; | |
2470a66f KH |
5818 | #endif |
5819 | ||
a4e19f6e SM |
5820 | case SELECT_WINDOW_EVENT: |
5821 | /* Make an event (select-window (WINDOW)). */ | |
5822 | return Fcons (Qselect_window, | |
5823 | Fcons (Fcons (event->frame_or_window, Qnil), | |
5824 | Qnil)); | |
5825 | ||
9ea173e8 | 5826 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5827 | if (EQ (event->arg, event->frame_or_window)) |
5828 | /* This is the prefix key. We translate this to | |
27fd22dc | 5829 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5830 | events, which we use, relies on this. */ |
5831 | return Fcons (Qtool_bar, Qnil); | |
5832 | else if (SYMBOLP (event->arg)) | |
5833 | return apply_modifiers (event->modifiers, event->arg); | |
5834 | return event->arg; | |
5835 | ||
5836 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5837 | /* A user signal. */ |
5838 | return *lispy_user_signals[event->code]; | |
c60ee5e7 | 5839 | |
3b8f9651 | 5840 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 5841 | return Qsave_session; |
c60ee5e7 | 5842 | |
284f4730 JB |
5843 | /* The 'kind' field of the event is something we don't recognize. */ |
5844 | default: | |
48e416d4 | 5845 | abort (); |
284f4730 JB |
5846 | } |
5847 | } | |
5848 | ||
514354e9 | 5849 | #ifdef HAVE_MOUSE |
6cbff1cb | 5850 | |
284f4730 | 5851 | static Lisp_Object |
7b4aedb9 | 5852 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5853 | FRAME_PTR frame; |
7b4aedb9 | 5854 | Lisp_Object bar_window; |
3c370943 | 5855 | enum scroll_bar_part part; |
284f4730 | 5856 | Lisp_Object x, y; |
e5d77022 | 5857 | unsigned long time; |
284f4730 | 5858 | { |
3c370943 | 5859 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5860 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5861 | { |
9b8eb840 | 5862 | Lisp_Object part_sym; |
4bb994d1 | 5863 | |
9b8eb840 | 5864 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5865 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5866 | (Fcons (Fcons (bar_window, |
3c370943 | 5867 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5868 | Fcons (Fcons (x, y), |
5869 | Fcons (make_number (time), | |
cb5df6ae | 5870 | Fcons (part_sym, |
4bb994d1 JB |
5871 | Qnil))))), |
5872 | Qnil))); | |
5873 | } | |
5874 | ||
5875 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5876 | else |
5877 | { | |
3d566707 | 5878 | Lisp_Object position; |
4bb994d1 | 5879 | |
3d566707 | 5880 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 5881 | |
4bb994d1 | 5882 | return Fcons (Qmouse_movement, |
3d566707 | 5883 | Fcons (position, |
4bb994d1 JB |
5884 | Qnil)); |
5885 | } | |
284f4730 JB |
5886 | } |
5887 | ||
514354e9 | 5888 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5889 | |
cd21b839 JB |
5890 | /* Construct a switch frame event. */ |
5891 | static Lisp_Object | |
5892 | make_lispy_switch_frame (frame) | |
5893 | Lisp_Object frame; | |
5894 | { | |
5895 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5896 | } | |
0a7f1fc0 JB |
5897 | \f |
5898 | /* Manipulating modifiers. */ | |
284f4730 | 5899 | |
0a7f1fc0 | 5900 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5901 | |
0a7f1fc0 JB |
5902 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5903 | SYMBOL's name of the end of the modifiers; the string from this | |
5904 | position is the unmodified symbol name. | |
284f4730 | 5905 | |
0a7f1fc0 | 5906 | This doesn't use any caches. */ |
6da3dd3a | 5907 | |
0a7f1fc0 JB |
5908 | static int |
5909 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5910 | Lisp_Object symbol; |
0a7f1fc0 | 5911 | int *modifier_end; |
284f4730 | 5912 | { |
1b049b51 | 5913 | Lisp_Object name; |
284f4730 JB |
5914 | int i; |
5915 | int modifiers; | |
284f4730 | 5916 | |
b7826503 | 5917 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5918 | |
284f4730 | 5919 | modifiers = 0; |
1b049b51 | 5920 | name = SYMBOL_NAME (symbol); |
284f4730 | 5921 | |
1b049b51 | 5922 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5923 | { |
5924 | int this_mod_end = 0; | |
5925 | int this_mod = 0; | |
284f4730 | 5926 | |
6da3dd3a RS |
5927 | /* See if the name continues with a modifier word. |
5928 | Check that the word appears, but don't check what follows it. | |
5929 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5930 | |
1b049b51 | 5931 | switch (SREF (name, i)) |
6da3dd3a RS |
5932 | { |
5933 | #define SINGLE_LETTER_MOD(BIT) \ | |
5934 | (this_mod_end = i + 1, this_mod = BIT) | |
5935 | ||
6da3dd3a RS |
5936 | case 'A': |
5937 | SINGLE_LETTER_MOD (alt_modifier); | |
5938 | break; | |
284f4730 | 5939 | |
6da3dd3a RS |
5940 | case 'C': |
5941 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5942 | break; | |
284f4730 | 5943 | |
6da3dd3a RS |
5944 | case 'H': |
5945 | SINGLE_LETTER_MOD (hyper_modifier); | |
5946 | break; | |
5947 | ||
6da3dd3a RS |
5948 | case 'M': |
5949 | SINGLE_LETTER_MOD (meta_modifier); | |
5950 | break; | |
5951 | ||
6da3dd3a RS |
5952 | case 'S': |
5953 | SINGLE_LETTER_MOD (shift_modifier); | |
5954 | break; | |
5955 | ||
5956 | case 's': | |
6da3dd3a RS |
5957 | SINGLE_LETTER_MOD (super_modifier); |
5958 | break; | |
5959 | ||
0a7f1fc0 | 5960 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
5961 | |
5962 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
5963 | if (i + LEN + 1 <= SBYTES (name) \ | |
5964 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
5965 | { \ | |
5966 | this_mod_end = i + LEN; \ | |
5967 | this_mod = BIT; \ | |
5968 | } | |
5969 | ||
5970 | case 'd': | |
5971 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5972 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5973 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5974 | break; | |
5975 | ||
5976 | case 't': | |
5977 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5978 | break; | |
5979 | #undef MULTI_LETTER_MOD | |
5980 | ||
6da3dd3a RS |
5981 | } |
5982 | ||
5983 | /* If we found no modifier, stop looking for them. */ | |
5984 | if (this_mod_end == 0) | |
5985 | break; | |
5986 | ||
5987 | /* Check there is a dash after the modifier, so that it | |
5988 | really is a modifier. */ | |
1b049b51 KR |
5989 | if (this_mod_end >= SBYTES (name) |
5990 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
5991 | break; |
5992 | ||
5993 | /* This modifier is real; look for another. */ | |
5994 | modifiers |= this_mod; | |
5995 | i = this_mod_end + 1; | |
5996 | } | |
284f4730 | 5997 | |
0a7f1fc0 | 5998 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
5999 | if (! (modifiers & (down_modifier | drag_modifier |
6000 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6001 | && i + 7 == SBYTES (name) |
6002 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6003 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6004 | modifiers |= click_modifier; |
6005 | ||
6006 | if (modifier_end) | |
6007 | *modifier_end = i; | |
6008 | ||
6009 | return modifiers; | |
6010 | } | |
6011 | ||
0a7f1fc0 JB |
6012 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6013 | prepended to the string BASE[0..BASE_LEN-1]. | |
6014 | This doesn't use any caches. */ | |
6015 | static Lisp_Object | |
301738ed | 6016 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6017 | int modifiers; |
6018 | char *base; | |
301738ed | 6019 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6020 | { |
6021 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6022 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6023 | reference to it. */ | |
301738ed RS |
6024 | char *new_mods |
6025 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6026 | int mod_len; |
284f4730 | 6027 | |
284f4730 | 6028 | { |
0a7f1fc0 JB |
6029 | char *p = new_mods; |
6030 | ||
6031 | /* Only the event queue may use the `up' modifier; it should always | |
6032 | be turned into a click or drag event before presented to lisp code. */ | |
6033 | if (modifiers & up_modifier) | |
6034 | abort (); | |
6035 | ||
6036 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6037 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6038 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6039 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6040 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6041 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6042 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6043 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6044 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6045 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6046 | /* The click modifier is denoted by the absence of other modifiers. */ |
6047 | ||
6048 | *p = '\0'; | |
6049 | ||
6050 | mod_len = p - new_mods; | |
6051 | } | |
284f4730 | 6052 | |
0a7f1fc0 | 6053 | { |
9b8eb840 | 6054 | Lisp_Object new_name; |
df0f2ba1 | 6055 | |
301738ed RS |
6056 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6057 | mod_len + base_len_byte); | |
d5db4077 KR |
6058 | bcopy (new_mods, SDATA (new_name), mod_len); |
6059 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6060 | |
6061 | return Fintern (new_name, Qnil); | |
6062 | } | |
6063 | } | |
6064 | ||
6065 | ||
0a7f1fc0 JB |
6066 | static char *modifier_names[] = |
6067 | { | |
fbcd35bd | 6068 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6069 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6070 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6071 | }; |
80645119 | 6072 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6073 | |
6074 | static Lisp_Object modifier_symbols; | |
6075 | ||
6076 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6077 | static Lisp_Object | |
6078 | lispy_modifier_list (modifiers) | |
6079 | int modifiers; | |
6080 | { | |
6081 | Lisp_Object modifier_list; | |
6082 | int i; | |
6083 | ||
6084 | modifier_list = Qnil; | |
80645119 | 6085 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6086 | if (modifiers & (1<<i)) |
80645119 JB |
6087 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6088 | modifier_list); | |
0a7f1fc0 JB |
6089 | |
6090 | return modifier_list; | |
6091 | } | |
6092 | ||
6093 | ||
6094 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6095 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6096 | MASK is the set of modifiers present in SYMBOL's name. | |
6097 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6098 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6099 | Qevent_symbol_elements property. */ | |
3d31316f | 6100 | |
1161d367 | 6101 | Lisp_Object |
0a7f1fc0 JB |
6102 | parse_modifiers (symbol) |
6103 | Lisp_Object symbol; | |
6104 | { | |
9b8eb840 | 6105 | Lisp_Object elements; |
0a7f1fc0 | 6106 | |
9b8eb840 | 6107 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6108 | if (CONSP (elements)) |
6109 | return elements; | |
6110 | else | |
6111 | { | |
6112 | int end; | |
ec0faad2 | 6113 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6114 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6115 | Lisp_Object mask; |
6116 | ||
d5db4077 KR |
6117 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6118 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6119 | Qnil); |
6120 | ||
e22216b8 | 6121 | if (modifiers & ~INTMASK) |
734fef94 | 6122 | abort (); |
bb9e9bed | 6123 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6124 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6125 | ||
6126 | /* Cache the parsing results on SYMBOL. */ | |
6127 | Fput (symbol, Qevent_symbol_element_mask, | |
6128 | elements); | |
6129 | Fput (symbol, Qevent_symbol_elements, | |
6130 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6131 | ||
6132 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6133 | it would be nice to put that in unmodified's cache. | |
6134 | But we can't, since we're not sure that parse_modifiers is | |
6135 | canonical. */ | |
6136 | ||
6137 | return elements; | |
6138 | } | |
6139 | } | |
6140 | ||
6141 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
6142 | BASE must be unmodified. | |
6143 | ||
6144 | This is like apply_modifiers_uncached, but uses BASE's | |
6145 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6146 | Qevent_symbol_elements properties, since it has that info anyway. |
6147 | ||
6148 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6149 | the modified symbol. */ | |
0a7f1fc0 JB |
6150 | static Lisp_Object |
6151 | apply_modifiers (modifiers, base) | |
6152 | int modifiers; | |
6153 | Lisp_Object base; | |
6154 | { | |
7b4aedb9 | 6155 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6156 | |
80645119 | 6157 | /* Mask out upper bits. We don't know where this value's been. */ |
e22216b8 | 6158 | modifiers &= INTMASK; |
80645119 | 6159 | |
0a7f1fc0 | 6160 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6161 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6162 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6163 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6164 | |
6165 | if (CONSP (entry)) | |
7539e11f | 6166 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6167 | else |
6168 | { | |
df0f2ba1 | 6169 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6170 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6171 | SDATA (SYMBOL_NAME (base)), |
6172 | SCHARS (SYMBOL_NAME (base)), | |
6173 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6174 | |
6175 | /* Add the new symbol to the base's cache. */ | |
6176 | entry = Fcons (index, new_symbol); | |
6177 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6178 | ||
35fb885d SM |
6179 | /* We have the parsing info now for free, so we could add it to |
6180 | the caches: | |
6181 | XSETFASTINT (index, modifiers); | |
6182 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6183 | Fcons (base, Fcons (index, Qnil))); | |
6184 | Fput (new_symbol, Qevent_symbol_elements, | |
6185 | Fcons (base, lispy_modifier_list (modifiers))); | |
6186 | Sadly, this is only correct if `base' is indeed a base event, | |
6187 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6188 | } |
0a7f1fc0 | 6189 | |
df0f2ba1 | 6190 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6191 | |
6192 | You'd think we could just set this once and for all when we | |
6193 | intern the symbol above, but reorder_modifiers may call us when | |
6194 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6195 | because it has a Qmodifier_cache property it must have its |
6196 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6197 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6198 | { | |
9b8eb840 | 6199 | Lisp_Object kind; |
7b4aedb9 | 6200 | |
9b8eb840 | 6201 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6202 | if (! NILP (kind)) |
6203 | Fput (new_symbol, Qevent_kind, kind); | |
6204 | } | |
6205 | ||
6206 | return new_symbol; | |
0a7f1fc0 JB |
6207 | } |
6208 | ||
6209 | ||
6210 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6211 | return a symbol with the modifiers placed in the canonical order. | |
6212 | Canonical order is alphabetical, except for down and drag, which | |
6213 | always come last. The 'click' modifier is never written out. | |
6214 | ||
6215 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6216 | and M-C-foo end up being equivalent in the keymap. */ | |
6217 | ||
6218 | Lisp_Object | |
6219 | reorder_modifiers (symbol) | |
6220 | Lisp_Object symbol; | |
6221 | { | |
6222 | /* It's hopefully okay to write the code this way, since everything | |
6223 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6224 | Lisp_Object parsed; |
0a7f1fc0 | 6225 | |
9b8eb840 | 6226 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6227 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6228 | XCAR (parsed)); | |
0a7f1fc0 JB |
6229 | } |
6230 | ||
6231 | ||
284f4730 JB |
6232 | /* For handling events, we often want to produce a symbol whose name |
6233 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6234 | to some base, like the name of a function key or mouse button. | |
6235 | modify_event_symbol produces symbols of this sort. | |
6236 | ||
6237 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6238 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6239 | in the table. | |
6240 | ||
8e1e4240 GM |
6241 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6242 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6243 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6244 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6245 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6246 | |
284f4730 JB |
6247 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6248 | persist between calls to modify_event_symbol that it can use to | |
6249 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6250 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6251 | |
6252 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6253 | |
284f4730 JB |
6254 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6255 | whose prefixes should be applied to the symbol name. | |
6256 | ||
6257 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6258 | the returned symbol. |
88cb0656 JB |
6259 | |
6260 | The symbols we create are supposed to have an | |
eb8c3be9 | 6261 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6262 | in the symbol's name. */ |
6263 | ||
284f4730 | 6264 | static Lisp_Object |
8e1e4240 | 6265 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6266 | name_table, symbol_table, table_size) |
284f4730 JB |
6267 | int symbol_num; |
6268 | unsigned modifiers; | |
6269 | Lisp_Object symbol_kind; | |
8e1e4240 | 6270 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6271 | char **name_table; |
6272 | Lisp_Object *symbol_table; | |
2c834fb3 | 6273 | unsigned int table_size; |
284f4730 | 6274 | { |
80e4aa30 RS |
6275 | Lisp_Object value; |
6276 | Lisp_Object symbol_int; | |
6277 | ||
2c834fb3 KH |
6278 | /* Get rid of the "vendor-specific" bit here. */ |
6279 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6280 | |
6281 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6282 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6283 | return Qnil; |
284f4730 | 6284 | |
80e4aa30 RS |
6285 | if (CONSP (*symbol_table)) |
6286 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6287 | ||
0a7f1fc0 | 6288 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6289 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6290 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6291 | we've never used that symbol before. */ | |
80e4aa30 | 6292 | else |
88cb0656 | 6293 | { |
80e4aa30 RS |
6294 | if (! VECTORP (*symbol_table) |
6295 | || XVECTOR (*symbol_table)->size != table_size) | |
6296 | { | |
6297 | Lisp_Object size; | |
0a7f1fc0 | 6298 | |
bb9e9bed | 6299 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6300 | *symbol_table = Fmake_vector (size, Qnil); |
6301 | } | |
284f4730 | 6302 | |
80e4aa30 RS |
6303 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6304 | } | |
284f4730 | 6305 | |
0a7f1fc0 | 6306 | /* Have we already used this symbol before? */ |
80e4aa30 | 6307 | if (NILP (value)) |
284f4730 | 6308 | { |
0a7f1fc0 | 6309 | /* No; let's create it. */ |
8e1e4240 GM |
6310 | if (CONSP (name_alist_or_stem)) |
6311 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6312 | else if (STRINGP (name_alist_or_stem)) | |
6313 | { | |
d5db4077 | 6314 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6315 | char *buf = (char *) alloca (len + 50); |
cea5d0d4 AS |
6316 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6317 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6318 | value = intern (buf); |
6319 | } | |
2ff6714d | 6320 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6321 | value = intern (name_table[symbol_num]); |
b64b4075 | 6322 | |
e98a93eb | 6323 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6324 | if (NILP (value)) |
6325 | { | |
6326 | char *name = x_get_keysym_name (symbol_num); | |
6327 | if (name) | |
6328 | value = intern (name); | |
6329 | } | |
6330 | #endif | |
6331 | ||
b64b4075 | 6332 | if (NILP (value)) |
d1f50460 RS |
6333 | { |
6334 | char buf[20]; | |
6335 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6336 | value = intern (buf); |
d1f50460 | 6337 | } |
0a7f1fc0 | 6338 | |
80e4aa30 | 6339 | if (CONSP (*symbol_table)) |
4205cb08 | 6340 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6341 | else |
6342 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6343 | ||
df0f2ba1 | 6344 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6345 | builds the Qevent_symbol_elements property, which the user |
6346 | cares about. */ | |
80e4aa30 RS |
6347 | apply_modifiers (modifiers & click_modifier, value); |
6348 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6349 | } |
88cb0656 | 6350 | |
0a7f1fc0 | 6351 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6352 | return apply_modifiers (modifiers, value); |
284f4730 | 6353 | } |
6da3dd3a RS |
6354 | \f |
6355 | /* Convert a list that represents an event type, | |
6356 | such as (ctrl meta backspace), into the usual representation of that | |
6357 | event type as a number or a symbol. */ | |
6358 | ||
a1706c30 | 6359 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6360 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6361 | EVENT-DESC should contain one base event type (a character or symbol) | |
6362 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6363 | drag, down, double or triple). The base must be last. | |
6364 | The return value is an event type (a character or symbol) which | |
6365 | has the same base event type and all the specified modifiers. */) | |
6366 | (event_desc) | |
e57d8fd8 | 6367 | Lisp_Object event_desc; |
6da3dd3a RS |
6368 | { |
6369 | Lisp_Object base; | |
6370 | int modifiers = 0; | |
6371 | Lisp_Object rest; | |
6372 | ||
6373 | base = Qnil; | |
e57d8fd8 | 6374 | rest = event_desc; |
6da3dd3a RS |
6375 | while (CONSP (rest)) |
6376 | { | |
6377 | Lisp_Object elt; | |
6378 | int this = 0; | |
6379 | ||
7539e11f KR |
6380 | elt = XCAR (rest); |
6381 | rest = XCDR (rest); | |
6da3dd3a | 6382 | |
3d31316f | 6383 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6384 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6385 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6386 | |
6387 | if (this != 0) | |
6388 | modifiers |= this; | |
6389 | else if (!NILP (base)) | |
6390 | error ("Two bases given in one event"); | |
6391 | else | |
6392 | base = elt; | |
6393 | ||
6da3dd3a RS |
6394 | } |
6395 | ||
3d31316f | 6396 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6397 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6398 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6399 | |
6da3dd3a RS |
6400 | if (INTEGERP (base)) |
6401 | { | |
3d31316f RS |
6402 | /* Turn (shift a) into A. */ |
6403 | if ((modifiers & shift_modifier) != 0 | |
6404 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6405 | { | |
6406 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6407 | modifiers &= ~shift_modifier; | |
6408 | } | |
6409 | ||
6410 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6411 | if (modifiers & ctrl_modifier) |
3d31316f | 6412 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6413 | | make_ctrl_char (XINT (base))); |
6414 | else | |
6415 | return make_number (modifiers | XINT (base)); | |
6416 | } | |
6417 | else if (SYMBOLP (base)) | |
6418 | return apply_modifiers (modifiers, base); | |
6419 | else | |
8c907a56 GM |
6420 | { |
6421 | error ("Invalid base event"); | |
6422 | return Qnil; | |
6423 | } | |
6da3dd3a RS |
6424 | } |
6425 | ||
3d31316f RS |
6426 | /* Try to recognize SYMBOL as a modifier name. |
6427 | Return the modifier flag bit, or 0 if not recognized. */ | |
6428 | ||
6429 | static int | |
6430 | parse_solitary_modifier (symbol) | |
6431 | Lisp_Object symbol; | |
6432 | { | |
1b049b51 | 6433 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6434 | |
1b049b51 | 6435 | switch (SREF (name, 0)) |
3d31316f RS |
6436 | { |
6437 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6438 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6439 | return BIT; |
6440 | ||
6441 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6442 | if (LEN == SBYTES (name) \ |
6443 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6444 | return BIT; |
6445 | ||
6446 | case 'A': | |
6447 | SINGLE_LETTER_MOD (alt_modifier); | |
6448 | break; | |
6449 | ||
6450 | case 'a': | |
6451 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6452 | break; | |
6453 | ||
6454 | case 'C': | |
6455 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6456 | break; | |
6457 | ||
6458 | case 'c': | |
6459 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6460 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6461 | break; | |
6462 | ||
6463 | case 'H': | |
6464 | SINGLE_LETTER_MOD (hyper_modifier); | |
6465 | break; | |
6466 | ||
6467 | case 'h': | |
6468 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6469 | break; | |
6470 | ||
6471 | case 'M': | |
6472 | SINGLE_LETTER_MOD (meta_modifier); | |
6473 | break; | |
6474 | ||
6475 | case 'm': | |
6476 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6477 | break; | |
6478 | ||
6479 | case 'S': | |
6480 | SINGLE_LETTER_MOD (shift_modifier); | |
6481 | break; | |
6482 | ||
6483 | case 's': | |
6484 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6485 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6486 | SINGLE_LETTER_MOD (super_modifier); | |
6487 | break; | |
6488 | ||
6489 | case 'd': | |
6490 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6491 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6492 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6493 | break; | |
6494 | ||
6495 | case 't': | |
6496 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6497 | break; | |
6498 | ||
6499 | #undef SINGLE_LETTER_MOD | |
6500 | #undef MULTI_LETTER_MOD | |
6501 | } | |
6502 | ||
6503 | return 0; | |
6504 | } | |
6505 | ||
6da3dd3a RS |
6506 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6507 | Such a list is not valid as an event, | |
6508 | but it can be a Lucid-style event type list. */ | |
6509 | ||
6510 | int | |
6511 | lucid_event_type_list_p (object) | |
6512 | Lisp_Object object; | |
6513 | { | |
6514 | Lisp_Object tail; | |
6515 | ||
6516 | if (! CONSP (object)) | |
6517 | return 0; | |
902ae620 GM |
6518 | |
6519 | if (EQ (XCAR (object), Qhelp_echo) | |
6520 | || EQ (XCAR (object), Qvertical_line) | |
6521 | || EQ (XCAR (object), Qmode_line) | |
6522 | || EQ (XCAR (object), Qheader_line)) | |
6523 | return 0; | |
6da3dd3a | 6524 | |
7539e11f | 6525 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6526 | { |
6527 | Lisp_Object elt; | |
7539e11f | 6528 | elt = XCAR (tail); |
6da3dd3a RS |
6529 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6530 | return 0; | |
6531 | } | |
6532 | ||
6533 | return NILP (tail); | |
6534 | } | |
284f4730 | 6535 | \f |
284f4730 JB |
6536 | /* Store into *addr a value nonzero if terminal input chars are available. |
6537 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6538 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6539 | (In fact, this may actually read some input.) |
6540 | ||
a2d5fca0 JD |
6541 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6542 | timer events that are ripe. | |
6543 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6544 | events (FOCUS_IN_EVENT). | |
6545 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6546 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6547 | |
6548 | static void | |
a2d5fca0 | 6549 | get_input_pending (addr, flags) |
284f4730 | 6550 | int *addr; |
a2d5fca0 | 6551 | int flags; |
284f4730 JB |
6552 | { |
6553 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 6554 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6555 | |
6556 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6557 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6558 | return; | |
6559 | ||
6560 | /* Try to read some input and see how much we get. */ | |
6561 | gobble_input (0); | |
a2d5fca0 | 6562 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6563 | } |
6564 | ||
81931ba1 | 6565 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6566 | |
07a59269 | 6567 | void |
284f4730 JB |
6568 | gobble_input (expected) |
6569 | int expected; | |
6570 | { | |
6571 | #ifndef VMS | |
6572 | #ifdef SIGIO | |
6573 | if (interrupt_input) | |
6574 | { | |
32676c08 | 6575 | SIGMASKTYPE mask; |
4f8aaa74 | 6576 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6577 | read_avail_input (expected); |
e065a56e | 6578 | sigsetmask (mask); |
284f4730 JB |
6579 | } |
6580 | else | |
81931ba1 RS |
6581 | #ifdef POLL_FOR_INPUT |
6582 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
6583 | { | |
6584 | SIGMASKTYPE mask; | |
4f8aaa74 | 6585 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6586 | read_avail_input (expected); |
6587 | sigsetmask (mask); | |
6588 | } | |
6589 | else | |
87485d6f | 6590 | #endif |
284f4730 JB |
6591 | #endif |
6592 | read_avail_input (expected); | |
6593 | #endif | |
6594 | } | |
a8015ab5 | 6595 | |
3b8f9651 | 6596 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6597 | so that read_key_sequence will notice the new current buffer. */ |
6598 | ||
07a59269 | 6599 | void |
a8015ab5 KH |
6600 | record_asynch_buffer_change () |
6601 | { | |
6602 | struct input_event event; | |
a30f0615 | 6603 | Lisp_Object tem; |
1269a761 | 6604 | EVENT_INIT (event); |
a30f0615 | 6605 | |
3b8f9651 | 6606 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6607 | event.frame_or_window = Qnil; |
da8f7368 | 6608 | event.arg = Qnil; |
241ceaf7 | 6609 | |
f65e6f7d | 6610 | #ifdef subprocesses |
a30f0615 RS |
6611 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6612 | The purpose of the event is to make read_key_sequence look up the | |
6613 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6614 | and the event could cause trouble by messing up (input-pending-p). */ | |
6615 | tem = Fwaiting_for_user_input_p (); | |
6616 | if (NILP (tem)) | |
6617 | return; | |
f65e6f7d RS |
6618 | #else |
6619 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6620 | return; | |
6621 | #endif | |
a30f0615 | 6622 | |
241ceaf7 RS |
6623 | /* Make sure no interrupt happens while storing the event. */ |
6624 | #ifdef SIGIO | |
6625 | if (interrupt_input) | |
6626 | { | |
6627 | SIGMASKTYPE mask; | |
4f8aaa74 | 6628 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6629 | kbd_buffer_store_event (&event); |
6630 | sigsetmask (mask); | |
6631 | } | |
6632 | else | |
6633 | #endif | |
6634 | { | |
6635 | stop_polling (); | |
6636 | kbd_buffer_store_event (&event); | |
6637 | start_polling (); | |
6638 | } | |
a8015ab5 | 6639 | } |
284f4730 JB |
6640 | \f |
6641 | #ifndef VMS | |
6642 | ||
6643 | /* Read any terminal input already buffered up by the system | |
6644 | into the kbd_buffer, but do not wait. | |
6645 | ||
6646 | EXPECTED should be nonzero if the caller knows there is some input. | |
6647 | ||
6648 | Except on VMS, all input is read by this function. | |
6649 | If interrupt_input is nonzero, this function MUST be called | |
6650 | only when SIGIO is blocked. | |
6651 | ||
6652 | Returns the number of keyboard chars read, or -1 meaning | |
0fc0bac9 | 6653 | this is a bad time to try to read input. */ |
284f4730 JB |
6654 | |
6655 | static int | |
6656 | read_avail_input (expected) | |
6657 | int expected; | |
6658 | { | |
284f4730 | 6659 | register int i; |
351d2e14 | 6660 | int nread = 0; |
284f4730 | 6661 | |
351d2e14 | 6662 | if (read_socket_hook) |
7371cef0 | 6663 | { |
351d2e14 | 6664 | int nr; |
0fc0bac9 | 6665 | struct input_event hold_quit; |
1269a761 | 6666 | |
0fc0bac9 KS |
6667 | EVENT_INIT (hold_quit); |
6668 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 6669 | |
0fc0bac9 KS |
6670 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6671 | while (nr = (*read_socket_hook) (input_fd, expected, &hold_quit), nr > 0) | |
6672 | { | |
6673 | nread += nr; | |
6674 | expected = 0; | |
6675 | } | |
6676 | if (hold_quit.kind != NO_EVENT) | |
6677 | kbd_buffer_store_event (&hold_quit); | |
351d2e14 | 6678 | } |
284f4730 JB |
6679 | else |
6680 | { | |
17270835 RS |
6681 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6682 | the kbd_buffer can really hold. That may prevent loss | |
6683 | of characters on some systems when input is stuffed at us. */ | |
6684 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 6685 | int n_to_read; |
284f4730 | 6686 | |
58788063 | 6687 | /* Determine how many characters we should *try* to read. */ |
bc536d84 | 6688 | #ifdef WINDOWSNT |
7371cef0 | 6689 | return 0; |
bc536d84 | 6690 | #else /* not WINDOWSNT */ |
80e4aa30 | 6691 | #ifdef MSDOS |
58788063 RS |
6692 | n_to_read = dos_keysns (); |
6693 | if (n_to_read == 0) | |
351d2e14 | 6694 | return 0; |
c3a2738c | 6695 | #else /* not MSDOS */ |
284f4730 JB |
6696 | #ifdef FIONREAD |
6697 | /* Find out how much input is available. */ | |
437f6112 | 6698 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
6699 | /* Formerly simply reported no input, but that sometimes led to |
6700 | a failure of Emacs to terminate. | |
6701 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
6702 | /* ??? Is it really right to send the signal just to this process |
6703 | rather than to the whole process group? | |
6704 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
f1871a7d RS |
6705 | { |
6706 | if (! noninteractive) | |
6707 | kill (getpid (), SIGHUP); | |
6708 | else | |
6709 | n_to_read = 0; | |
6710 | } | |
58788063 | 6711 | if (n_to_read == 0) |
351d2e14 | 6712 | return 0; |
58788063 RS |
6713 | if (n_to_read > sizeof cbuf) |
6714 | n_to_read = sizeof cbuf; | |
284f4730 | 6715 | #else /* no FIONREAD */ |
c60ee5e7 | 6716 | #if defined (USG) || defined (DGUX) || defined(CYGWIN) |
284f4730 | 6717 | /* Read some input if available, but don't wait. */ |
58788063 | 6718 | n_to_read = sizeof cbuf; |
437f6112 | 6719 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
6720 | #else |
6721 | you lose; | |
6722 | #endif | |
6723 | #endif | |
80e4aa30 | 6724 | #endif /* not MSDOS */ |
bc536d84 | 6725 | #endif /* not WINDOWSNT */ |
284f4730 | 6726 | |
58788063 RS |
6727 | /* Now read; for one reason or another, this will not block. |
6728 | NREAD is set to the number of chars read. */ | |
9134775b | 6729 | do |
284f4730 | 6730 | { |
80e4aa30 | 6731 | #ifdef MSDOS |
0c04a67e | 6732 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
6733 | nread = 1; |
6734 | #else | |
68c45bf0 | 6735 | nread = emacs_read (input_fd, cbuf, n_to_read); |
80e4aa30 | 6736 | #endif |
49854566 RS |
6737 | /* POSIX infers that processes which are not in the session leader's |
6738 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 6739 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
6740 | when the control tty is taken away. |
6741 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
6742 | if (nread == -1 && errno == EIO) | |
6743 | kill (0, SIGHUP); | |
762f2b92 | 6744 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
6745 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6746 | This looks incorrect, but it isn't, because _BSD causes | |
6747 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6748 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 6749 | if (nread == 0) |
80e4aa30 | 6750 | kill (0, SIGHUP); |
284f4730 | 6751 | #endif |
9134775b | 6752 | } |
791587ee KH |
6753 | while ( |
6754 | /* We used to retry the read if it was interrupted. | |
6755 | But this does the wrong thing when O_NDELAY causes | |
6756 | an EAGAIN error. Does anybody know of a situation | |
6757 | where a retry is actually needed? */ | |
6758 | #if 0 | |
6759 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 6760 | #ifdef EFAULT |
9134775b | 6761 | || errno == EFAULT |
80e4aa30 | 6762 | #endif |
284f4730 | 6763 | #ifdef EBADSLT |
9134775b | 6764 | || errno == EBADSLT |
284f4730 | 6765 | #endif |
791587ee KH |
6766 | ) |
6767 | #else | |
6768 | 0 | |
6769 | #endif | |
6770 | ); | |
284f4730 JB |
6771 | |
6772 | #ifndef FIONREAD | |
c60ee5e7 | 6773 | #if defined (USG) || defined (DGUX) || defined (CYGWIN) |
437f6112 | 6774 | fcntl (input_fd, F_SETFL, 0); |
c60ee5e7 | 6775 | #endif /* USG or DGUX or CYGWIN */ |
284f4730 JB |
6776 | #endif /* no FIONREAD */ |
6777 | for (i = 0; i < nread; i++) | |
6778 | { | |
351d2e14 KS |
6779 | struct input_event buf; |
6780 | EVENT_INIT (buf); | |
6781 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
6782 | buf.modifiers = 0; | |
b04904fb | 6783 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
351d2e14 | 6784 | buf.modifiers = meta_modifier; |
b04904fb RS |
6785 | if (meta_key != 2) |
6786 | cbuf[i] &= ~0x80; | |
f3e59d5e | 6787 | |
351d2e14 KS |
6788 | buf.code = cbuf[i]; |
6789 | buf.frame_or_window = selected_frame; | |
6790 | buf.arg = Qnil; | |
2320865d | 6791 | |
351d2e14 KS |
6792 | kbd_buffer_store_event (&buf); |
6793 | /* Don't look at input that follows a C-g too closely. | |
6794 | This reduces lossage due to autorepeat on C-g. */ | |
6795 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
6796 | && buf.code == quit_char) | |
6797 | break; | |
284f4730 JB |
6798 | } |
6799 | } | |
6800 | ||
99402311 | 6801 | return nread; |
284f4730 JB |
6802 | } |
6803 | #endif /* not VMS */ | |
6804 | \f | |
b65c1b44 SM |
6805 | void |
6806 | handle_async_input () | |
6807 | { | |
6808 | #ifdef BSD4_1 | |
6809 | extern int select_alarmed; | |
6810 | #endif | |
aa477689 | 6811 | |
b65c1b44 SM |
6812 | interrupt_input_pending = 0; |
6813 | ||
6814 | while (1) | |
6815 | { | |
6816 | int nread; | |
6817 | nread = read_avail_input (1); | |
6818 | /* -1 means it's not ok to read the input now. | |
6819 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6820 | 0 means there was no keyboard input available. */ | |
6821 | if (nread <= 0) | |
6822 | break; | |
6823 | ||
6824 | #ifdef BSD4_1 | |
6825 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6826 | #endif | |
6827 | } | |
6828 | } | |
6829 | ||
284f4730 JB |
6830 | #ifdef SIGIO /* for entire page */ |
6831 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6832 | ||
4216b545 | 6833 | static SIGTYPE |
284f4730 JB |
6834 | input_available_signal (signo) |
6835 | int signo; | |
6836 | { | |
6837 | /* Must preserve main program's value of errno. */ | |
6838 | int old_errno = errno; | |
5970a8cb | 6839 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6840 | /* USG systems forget handlers when they are used; |
6841 | must reestablish each time */ | |
6842 | signal (signo, input_available_signal); | |
6843 | #endif /* USG */ | |
6844 | ||
6845 | #ifdef BSD4_1 | |
6846 | sigisheld (SIGIO); | |
6847 | #endif | |
6848 | ||
b65c1b44 SM |
6849 | #ifdef SYNC_INPUT |
6850 | interrupt_input_pending = 1; | |
6851 | #else | |
333f1b6f | 6852 | SIGNAL_THREAD_CHECK (signo); |
bd55c35c | 6853 | #endif |
a25f766a | 6854 | |
bd55c35c JD |
6855 | if (input_available_clear_time) |
6856 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
6857 | ||
6858 | #ifndef SYNC_INPUT | |
b65c1b44 | 6859 | handle_async_input (); |
284f4730 | 6860 | #endif |
284f4730 JB |
6861 | |
6862 | #ifdef BSD4_1 | |
6863 | sigfree (); | |
6864 | #endif | |
6865 | errno = old_errno; | |
6866 | } | |
6867 | #endif /* SIGIO */ | |
ad163903 JB |
6868 | |
6869 | /* Send ourselves a SIGIO. | |
6870 | ||
6871 | This function exists so that the UNBLOCK_INPUT macro in | |
6872 | blockinput.h can have some way to take care of input we put off | |
6873 | dealing with, without assuming that every file which uses | |
6874 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
6875 | void | |
6876 | reinvoke_input_signal () | |
6877 | { | |
df0f2ba1 | 6878 | #ifdef SIGIO |
b65c1b44 | 6879 | handle_async_input (); |
ad163903 JB |
6880 | #endif |
6881 | } | |
6882 | ||
6883 | ||
284f4730 | 6884 | \f |
318ab85c SM |
6885 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
6886 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
6887 | |
6888 | /* These variables hold the vector under construction within | |
6889 | menu_bar_items and its subroutines, and the current index | |
6890 | for storing into that vector. */ | |
6891 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 6892 | static int menu_bar_items_index; |
5ec75a55 | 6893 | |
b7c49376 RS |
6894 | /* Return a vector of menu items for a menu bar, appropriate |
6895 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 6896 | KEY STRING MAPLIST. |
b7c49376 RS |
6897 | |
6898 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
6899 | |
6900 | Lisp_Object | |
b7c49376 RS |
6901 | menu_bar_items (old) |
6902 | Lisp_Object old; | |
5ec75a55 RS |
6903 | { |
6904 | /* The number of keymaps we're scanning right now, and the number of | |
6905 | keymaps we have allocated space for. */ | |
6906 | int nmaps; | |
6907 | ||
6908 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
6909 | in the current keymaps, or nil where it is not a prefix. */ | |
6910 | Lisp_Object *maps; | |
6911 | ||
aebfea68 | 6912 | Lisp_Object def, tail; |
5ec75a55 RS |
6913 | |
6914 | Lisp_Object result; | |
6915 | ||
6916 | int mapno; | |
47d319aa | 6917 | Lisp_Object oquit; |
5ec75a55 | 6918 | |
b7c49376 RS |
6919 | int i; |
6920 | ||
db60d856 JB |
6921 | /* In order to build the menus, we need to call the keymap |
6922 | accessors. They all call QUIT. But this function is called | |
6923 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
6924 | quitting while building the menus. |
6925 | We do this instead of specbind because (1) errors will clear it anyway | |
6926 | and (2) this avoids risk of specpdl overflow. */ | |
6927 | oquit = Vinhibit_quit; | |
df0f2ba1 | 6928 | Vinhibit_quit = Qt; |
db60d856 | 6929 | |
b7c49376 RS |
6930 | if (!NILP (old)) |
6931 | menu_bar_items_vector = old; | |
6932 | else | |
6933 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
6934 | menu_bar_items_index = 0; | |
6935 | ||
5ec75a55 RS |
6936 | /* Build our list of keymaps. |
6937 | If we recognize a function key and replace its escape sequence in | |
6938 | keybuf with its symbol, or if the sequence starts with a mouse | |
6939 | click and we need to switch buffers, we jump back here to rebuild | |
6940 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 6941 | { |
5ec75a55 RS |
6942 | Lisp_Object *tmaps; |
6943 | ||
217258d5 | 6944 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 6945 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 6946 | { |
217258d5 KH |
6947 | /* Yes, use them (if non-nil) as well as the global map. */ |
6948 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6949 | nmaps = 0; | |
6950 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6951 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6952 | if (!NILP (Voverriding_local_map)) | |
6953 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
6954 | } |
6955 | else | |
6956 | { | |
fd646341 KS |
6957 | /* No, so use major and minor mode keymaps and keymap property. |
6958 | Note that menu-bar bindings in the local-map and keymap | |
6959 | properties may not work reliable, as they are only | |
6960 | recognized when the menu-bar (or mode-line) is updated, | |
6961 | which does not normally happen after every command. */ | |
6962 | Lisp_Object tem; | |
6963 | int nminor; | |
6964 | nminor = current_minor_maps (NULL, &tmaps); | |
6965 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
6966 | nmaps = 0; | |
6967 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
6968 | maps[nmaps++] = tem; | |
6969 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
6970 | nmaps += nminor; | |
6971 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 6972 | } |
217258d5 | 6973 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
6974 | } |
6975 | ||
6976 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
6977 | ||
6978 | result = Qnil; | |
6979 | ||
e58aa385 | 6980 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
6981 | if (!NILP (maps[mapno])) |
6982 | { | |
341a09cf SM |
6983 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
6984 | 0, 1); | |
02067692 | 6985 | if (CONSP (def)) |
4216b545 SM |
6986 | { |
6987 | menu_bar_one_keymap_changed_items = Qnil; | |
6988 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
6989 | } | |
25126faa | 6990 | } |
5ec75a55 | 6991 | |
b7c49376 RS |
6992 | /* Move to the end those items that should be at the end. */ |
6993 | ||
7539e11f | 6994 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 6995 | { |
b7c49376 RS |
6996 | int i; |
6997 | int end = menu_bar_items_index; | |
6998 | ||
35b3402f | 6999 | for (i = 0; i < end; i += 4) |
7539e11f | 7000 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7001 | { |
35b3402f | 7002 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7003 | /* Move the item at index I to the end, |
7004 | shifting all the others forward. */ | |
7005 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7006 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7007 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7008 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7009 | if (end > i + 4) | |
7010 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7011 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7012 | (end - i - 4) * sizeof (Lisp_Object)); |
7013 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7014 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7015 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7016 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7017 | break; |
b7c49376 RS |
7018 | } |
7019 | } | |
9f9c0e27 | 7020 | |
0c9071cd | 7021 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7022 | i = menu_bar_items_index; |
35b3402f | 7023 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7024 | { |
7025 | Lisp_Object tem; | |
b7c49376 RS |
7026 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7027 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7028 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7029 | menu_bar_items_vector = tem; | |
9f9c0e27 | 7030 | } |
b7c49376 RS |
7031 | /* Add this item. */ |
7032 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7033 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7034 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7035 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7036 | menu_bar_items_index = i; |
a73c5e29 | 7037 | |
47d319aa | 7038 | Vinhibit_quit = oquit; |
b7c49376 | 7039 | return menu_bar_items_vector; |
5ec75a55 RS |
7040 | } |
7041 | \f | |
f5e09c8b RS |
7042 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7043 | If there's already an item for KEY, add this DEF to it. */ | |
7044 | ||
e8886a1d RS |
7045 | Lisp_Object item_properties; |
7046 | ||
b7c49376 | 7047 | static void |
4216b545 SM |
7048 | menu_bar_item (key, item, dummy1, dummy2) |
7049 | Lisp_Object key, item, dummy1; | |
7050 | void *dummy2; | |
5ec75a55 | 7051 | { |
e8886a1d | 7052 | struct gcpro gcpro1; |
b7c49376 | 7053 | int i; |
759860a6 | 7054 | Lisp_Object tem; |
5ec75a55 | 7055 | |
e8886a1d | 7056 | if (EQ (item, Qundefined)) |
e58aa385 | 7057 | { |
f5e09c8b | 7058 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7059 | discard any previously made menu bar item. */ |
b7c49376 | 7060 | |
35b3402f | 7061 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7062 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7063 | { | |
35b3402f RS |
7064 | if (menu_bar_items_index > i + 4) |
7065 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7066 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7067 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7068 | menu_bar_items_index -= 4; | |
b7c49376 | 7069 | } |
e58aa385 RS |
7070 | } |
7071 | ||
759860a6 RS |
7072 | /* If this keymap has already contributed to this KEY, |
7073 | don't contribute to it a second time. */ | |
7074 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7075 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7076 | return; |
7077 | ||
7078 | menu_bar_one_keymap_changed_items | |
7079 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7080 | ||
9cd2ced7 SM |
7081 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7082 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7083 | it still correctly hides any further menu item. */ | |
7084 | GCPRO1 (key); | |
7085 | i = parse_menu_item (item, 0, 1); | |
7086 | UNGCPRO; | |
7087 | if (!i) | |
7088 | return; | |
7089 | ||
e8886a1d RS |
7090 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7091 | ||
f5e09c8b | 7092 | /* Find any existing item for this KEY. */ |
35b3402f | 7093 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7094 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7095 | break; | |
7096 | ||
f5e09c8b | 7097 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7098 | if (i == menu_bar_items_index) |
7099 | { | |
7100 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7101 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7102 | { |
7103 | Lisp_Object tem; | |
b7c49376 RS |
7104 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7105 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7106 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7107 | menu_bar_items_vector = tem; | |
7108 | } | |
e8886a1d | 7109 | |
b7c49376 RS |
7110 | /* Add this item. */ |
7111 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7112 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7113 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7114 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7115 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7116 | menu_bar_items_index = i; |
7117 | } | |
e8886a1d | 7118 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7119 | else |
7120 | { | |
7121 | Lisp_Object old; | |
7122 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7123 | /* If the new and the old items are not both keymaps, |
7124 | the lookup will only find `item'. */ | |
7125 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7126 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7127 | } |
5ec75a55 RS |
7128 | } |
7129 | \f | |
e8886a1d RS |
7130 | /* This is used as the handler when calling menu_item_eval_property. */ |
7131 | static Lisp_Object | |
7132 | menu_item_eval_property_1 (arg) | |
7133 | Lisp_Object arg; | |
7134 | { | |
7135 | /* If we got a quit from within the menu computation, | |
7136 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7137 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7138 | Fsignal (Qquit, Qnil); |
7139 | ||
7140 | return Qnil; | |
7141 | } | |
7142 | ||
c60ee5e7 | 7143 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7144 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7145 | Lisp_Object |
e8886a1d RS |
7146 | menu_item_eval_property (sexpr) |
7147 | Lisp_Object sexpr; | |
7148 | { | |
aed13378 | 7149 | int count = SPECPDL_INDEX (); |
e8886a1d | 7150 | Lisp_Object val; |
44e553a3 | 7151 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7152 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7153 | menu_item_eval_property_1); | |
44e553a3 | 7154 | return unbind_to (count, val); |
e8886a1d RS |
7155 | } |
7156 | ||
7157 | /* This function parses a menu item and leaves the result in the | |
7158 | vector item_properties. | |
7159 | ITEM is a key binding, a possible menu item. | |
7160 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7161 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7162 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7163 | top level. |
fd3613d7 | 7164 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7165 | parse_menu_item returns true if the item is a menu item and false |
7166 | otherwise. */ | |
7167 | ||
7168 | int | |
7169 | parse_menu_item (item, notreal, inmenubar) | |
7170 | Lisp_Object item; | |
7171 | int notreal, inmenubar; | |
7172 | { | |
adc1d5c8 | 7173 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7174 | Lisp_Object cachelist; |
7175 | Lisp_Object filter; | |
7176 | Lisp_Object keyhint; | |
e8886a1d | 7177 | int i; |
74c1de23 RS |
7178 | int newcache = 0; |
7179 | ||
07ba902e RS |
7180 | cachelist = Qnil; |
7181 | filter = Qnil; | |
7182 | keyhint = Qnil; | |
7183 | ||
e8886a1d RS |
7184 | if (!CONSP (item)) |
7185 | return 0; | |
7186 | ||
e8886a1d RS |
7187 | /* Create item_properties vector if necessary. */ |
7188 | if (NILP (item_properties)) | |
7189 | item_properties | |
7190 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7191 | ||
7192 | /* Initialize optional entries. */ | |
7193 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
7194 | AREF (item_properties, i) = Qnil; |
7195 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
c60ee5e7 | 7196 | |
e8886a1d | 7197 | /* Save the item here to protect it from GC. */ |
3626fb1a | 7198 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 7199 | |
7539e11f | 7200 | item_string = XCAR (item); |
e8886a1d RS |
7201 | |
7202 | start = item; | |
7539e11f | 7203 | item = XCDR (item); |
e8886a1d RS |
7204 | if (STRINGP (item_string)) |
7205 | { | |
7206 | /* Old format menu item. */ | |
3626fb1a | 7207 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
7208 | |
7209 | /* Maybe help string. */ | |
7539e11f | 7210 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7211 | { |
3626fb1a | 7212 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7213 | start = item; |
7539e11f | 7214 | item = XCDR (item); |
e8886a1d | 7215 | } |
c60ee5e7 | 7216 | |
31f84d03 | 7217 | /* Maybe key binding cache. */ |
7539e11f KR |
7218 | if (CONSP (item) && CONSP (XCAR (item)) |
7219 | && (NILP (XCAR (XCAR (item))) | |
7220 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7221 | { |
7539e11f KR |
7222 | cachelist = XCAR (item); |
7223 | item = XCDR (item); | |
e8886a1d | 7224 | } |
c60ee5e7 | 7225 | |
e8886a1d | 7226 | /* This is the real definition--the function to run. */ |
3626fb1a | 7227 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
7228 | |
7229 | /* Get enable property, if any. */ | |
7230 | if (SYMBOLP (item)) | |
7231 | { | |
7232 | tem = Fget (item, Qmenu_enable); | |
7233 | if (!NILP (tem)) | |
3626fb1a | 7234 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7235 | } |
7236 | } | |
7237 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7238 | { | |
7239 | /* New format menu item. */ | |
3626fb1a | 7240 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 7241 | start = XCDR (item); |
e8886a1d RS |
7242 | if (CONSP (start)) |
7243 | { | |
7244 | /* We have a real binding. */ | |
3626fb1a | 7245 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 7246 | |
7539e11f | 7247 | item = XCDR (start); |
e8886a1d | 7248 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7249 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7250 | { |
7539e11f KR |
7251 | cachelist = XCAR (item); |
7252 | item = XCDR (item); | |
e8886a1d RS |
7253 | } |
7254 | ||
7255 | /* Parse properties. */ | |
7539e11f | 7256 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7257 | { |
7539e11f KR |
7258 | tem = XCAR (item); |
7259 | item = XCDR (item); | |
e8886a1d RS |
7260 | |
7261 | if (EQ (tem, QCenable)) | |
3626fb1a | 7262 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
7263 | else if (EQ (tem, QCvisible) && !notreal) |
7264 | { | |
7265 | /* If got a visible property and that evaluates to nil | |
7266 | then ignore this item. */ | |
7539e11f | 7267 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7268 | if (NILP (tem)) |
adc1d5c8 | 7269 | return 0; |
e8886a1d RS |
7270 | } |
7271 | else if (EQ (tem, QChelp)) | |
3626fb1a | 7272 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7273 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7274 | filter = item; |
7275 | else if (EQ (tem, QCkey_sequence)) | |
7276 | { | |
7539e11f | 7277 | tem = XCAR (item); |
74c1de23 RS |
7278 | if (NILP (cachelist) |
7279 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7280 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7281 | keyhint = item; | |
7282 | } | |
7283 | else if (EQ (tem, QCkeys)) | |
7284 | { | |
7539e11f | 7285 | tem = XCAR (item); |
03cee6ae | 7286 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 7287 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 7288 | } |
7539e11f | 7289 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7290 | { |
74c1de23 | 7291 | Lisp_Object type; |
7539e11f KR |
7292 | tem = XCAR (item); |
7293 | type = XCAR (tem); | |
e8886a1d RS |
7294 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7295 | { | |
3626fb1a | 7296 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 7297 | = XCDR (tem); |
3626fb1a | 7298 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
7299 | = type; |
7300 | } | |
7301 | } | |
7539e11f | 7302 | item = XCDR (item); |
e8886a1d RS |
7303 | } |
7304 | } | |
7305 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7306 | return 0; |
e8886a1d RS |
7307 | } |
7308 | else | |
adc1d5c8 | 7309 | return 0; /* not a menu item */ |
e8886a1d RS |
7310 | |
7311 | /* If item string is not a string, evaluate it to get string. | |
7312 | If we don't get a string, skip this item. */ | |
3626fb1a | 7313 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7314 | if (!(STRINGP (item_string) || notreal)) |
7315 | { | |
7316 | item_string = menu_item_eval_property (item_string); | |
7317 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7318 | return 0; |
3626fb1a | 7319 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d | 7320 | } |
c60ee5e7 | 7321 | |
e8886a1d | 7322 | /* If got a filter apply it on definition. */ |
3626fb1a | 7323 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7324 | if (!NILP (filter)) |
7325 | { | |
7539e11f | 7326 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7327 | list2 (Qquote, def))); |
7328 | ||
3626fb1a | 7329 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
7330 | } |
7331 | ||
e8886a1d | 7332 | /* Enable or disable selection of item. */ |
3626fb1a | 7333 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7334 | if (!EQ (tem, Qt)) |
7335 | { | |
7336 | if (notreal) | |
7337 | tem = Qt; | |
7338 | else | |
7339 | tem = menu_item_eval_property (tem); | |
7340 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7341 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7342 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7343 | } |
7344 | ||
7189cad8 SM |
7345 | /* If we got no definition, this item is just unselectable text which |
7346 | is OK in a submenu but not in the menubar. */ | |
7347 | if (NILP (def)) | |
7348 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7349 | |
e8886a1d | 7350 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7351 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7352 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7353 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7354 | if (CONSP (tem)) |
e8886a1d | 7355 | { |
3626fb1a GM |
7356 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7357 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7358 | return 1; |
7359 | } | |
c60ee5e7 | 7360 | |
9ac425d1 RS |
7361 | /* At the top level in the menu bar, do likewise for commands also. |
7362 | The menu bar does not display equivalent key bindings anyway. | |
7363 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7364 | if (inmenubar > 0) | |
7365 | return 1; | |
e8886a1d RS |
7366 | |
7367 | /* This is a command. See if there is an equivalent key binding. */ | |
7368 | if (NILP (cachelist)) | |
7369 | { | |
74c1de23 | 7370 | /* We have to create a cachelist. */ |
e8886a1d | 7371 | CHECK_IMPURE (start); |
f3fbd155 | 7372 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7373 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7374 | newcache = 1; |
3626fb1a | 7375 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7376 | if (!NILP (keyhint)) |
7377 | { | |
f3fbd155 | 7378 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7379 | newcache = 0; |
7380 | } | |
7381 | else if (STRINGP (tem)) | |
7382 | { | |
f3fbd155 KR |
7383 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7384 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7385 | } |
7386 | } | |
c60ee5e7 | 7387 | |
7539e11f | 7388 | tem = XCAR (cachelist); |
74c1de23 RS |
7389 | if (!EQ (tem, Qt)) |
7390 | { | |
7391 | int chkcache = 0; | |
7392 | Lisp_Object prefix; | |
7393 | ||
7394 | if (!NILP (tem)) | |
8b9940e6 | 7395 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7396 | |
3626fb1a | 7397 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7398 | if (CONSP (prefix)) |
7399 | { | |
7539e11f KR |
7400 | def = XCAR (prefix); |
7401 | prefix = XCDR (prefix); | |
74c1de23 | 7402 | } |
e8886a1d | 7403 | else |
3626fb1a | 7404 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7405 | |
3626fb1a GM |
7406 | if (!update_menu_bindings) |
7407 | chkcache = 0; | |
7408 | else if (NILP (XCAR (cachelist))) /* Have no saved key. */ | |
74c1de23 RS |
7409 | { |
7410 | if (newcache /* Always check first time. */ | |
7411 | /* Should we check everything when precomputing key | |
7412 | bindings? */ | |
74c1de23 RS |
7413 | /* If something had no key binding before, don't recheck it |
7414 | because that is too slow--except if we have a list of | |
7415 | rebound commands in Vdefine_key_rebound_commands, do | |
7416 | recheck any command that appears in that list. */ | |
7417 | || (CONSP (Vdefine_key_rebound_commands) | |
7418 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7419 | chkcache = 1; | |
7420 | } | |
7421 | /* We had a saved key. Is it still bound to the command? */ | |
7422 | else if (NILP (tem) | |
03cee6ae GM |
7423 | || (!EQ (tem, def) |
7424 | /* If the command is an alias for another | |
7425 | (such as lmenu.el set it up), check if the | |
7426 | original command matches the cached command. */ | |
7427 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7428 | chkcache = 1; /* Need to recompute key binding. */ |
7429 | ||
7430 | if (chkcache) | |
7431 | { | |
7432 | /* Recompute equivalent key binding. If the command is an alias | |
7433 | for another (such as lmenu.el set it up), see if the original | |
7434 | command name has equivalent keys. Otherwise look up the | |
7435 | specified command itself. We don't try both, because that | |
7436 | makes lmenu menus slow. */ | |
3626fb1a GM |
7437 | if (SYMBOLP (def) |
7438 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7439 | && ! NILP (Fget (def, Qmenu_alias))) |
7440 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7441 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7442 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7443 | if (NILP (tem)) |
7444 | { | |
f3fbd155 | 7445 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7446 | chkcache = 0; |
7447 | } | |
7448 | } | |
7539e11f | 7449 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7450 | { |
7539e11f | 7451 | tem = XCAR (cachelist); |
74c1de23 RS |
7452 | chkcache = 1; |
7453 | } | |
7454 | ||
7455 | newcache = chkcache; | |
7456 | if (chkcache) | |
7457 | { | |
a1bfe073 | 7458 | tem = Fkey_description (tem, Qnil); |
74c1de23 RS |
7459 | if (CONSP (prefix)) |
7460 | { | |
7539e11f KR |
7461 | if (STRINGP (XCAR (prefix))) |
7462 | tem = concat2 (XCAR (prefix), tem); | |
7463 | if (STRINGP (XCDR (prefix))) | |
7464 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7465 | } |
f3fbd155 | 7466 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7467 | } |
7468 | } | |
7469 | ||
7539e11f | 7470 | tem = XCDR (cachelist); |
74c1de23 | 7471 | if (newcache && !NILP (tem)) |
e8886a1d | 7472 | { |
74c1de23 | 7473 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7474 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7475 | } |
7476 | ||
7477 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7478 | if (notreal) | |
adc1d5c8 | 7479 | return 1; |
e8886a1d RS |
7480 | |
7481 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7482 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7483 | |
7484 | /* Include this when menu help is implemented. | |
7485 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7486 | if (!(NILP (tem) || STRINGP (tem))) | |
7487 | { | |
7488 | tem = menu_item_eval_property (tem); | |
7489 | if (!STRINGP (tem)) | |
7490 | tem = Qnil; | |
7491 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7492 | } | |
e8886a1d RS |
7493 | */ |
7494 | ||
c60ee5e7 | 7495 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 7496 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7497 | if (!NILP (tem)) |
3626fb1a | 7498 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7499 | = menu_item_eval_property (tem); |
7500 | ||
e8886a1d RS |
7501 | return 1; |
7502 | } | |
7ee32cda GM |
7503 | |
7504 | ||
7505 | \f | |
7506 | /*********************************************************************** | |
7507 | Tool-bars | |
7508 | ***********************************************************************/ | |
7509 | ||
9ea173e8 | 7510 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7511 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7512 | in the vector. */ |
7ee32cda | 7513 | |
9ea173e8 | 7514 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7515 | |
9ea173e8 GM |
7516 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7517 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7518 | |
9ea173e8 | 7519 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7520 | |
9ea173e8 | 7521 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7522 | |
9ea173e8 | 7523 | static int ntool_bar_items; |
7ee32cda | 7524 | |
9ea173e8 | 7525 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7526 | |
9ea173e8 | 7527 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7528 | Lisp_Object QCimage; |
7529 | ||
7530 | /* Function prototypes. */ | |
7531 | ||
9ea173e8 GM |
7532 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7533 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7534 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7535 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7536 | |
7537 | ||
9ea173e8 | 7538 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7539 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7540 | tool bar items found. */ |
7ee32cda GM |
7541 | |
7542 | Lisp_Object | |
9ea173e8 | 7543 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7544 | Lisp_Object reuse; |
7545 | int *nitems; | |
7546 | { | |
7547 | Lisp_Object *maps; | |
7548 | int nmaps, i; | |
7549 | Lisp_Object oquit; | |
7550 | Lisp_Object *tmaps; | |
7ee32cda GM |
7551 | |
7552 | *nitems = 0; | |
7553 | ||
7554 | /* In order to build the menus, we need to call the keymap | |
7555 | accessors. They all call QUIT. But this function is called | |
7556 | during redisplay, during which a quit is fatal. So inhibit | |
7557 | quitting while building the menus. We do this instead of | |
7558 | specbind because (1) errors will clear it anyway and (2) this | |
7559 | avoids risk of specpdl overflow. */ | |
7560 | oquit = Vinhibit_quit; | |
7561 | Vinhibit_quit = Qt; | |
c60ee5e7 | 7562 | |
9ea173e8 GM |
7563 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7564 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7565 | |
7566 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7567 | to process. */ | |
c60ee5e7 | 7568 | |
7ee32cda GM |
7569 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
7570 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7571 | { | |
7572 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7573 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7574 | nmaps = 0; | |
7575 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7576 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7577 | if (!NILP (Voverriding_local_map)) | |
7578 | maps[nmaps++] = Voverriding_local_map; | |
7579 | } | |
7580 | else | |
7581 | { | |
fd646341 KS |
7582 | /* No, so use major and minor mode keymaps and keymap property. |
7583 | Note that tool-bar bindings in the local-map and keymap | |
7584 | properties may not work reliable, as they are only | |
7585 | recognized when the tool-bar (or mode-line) is updated, | |
7586 | which does not normally happen after every command. */ | |
7587 | Lisp_Object tem; | |
7588 | int nminor; | |
7589 | nminor = current_minor_maps (NULL, &tmaps); | |
7590 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7591 | nmaps = 0; | |
7592 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7593 | maps[nmaps++] = tem; | |
7594 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7595 | nmaps += nminor; | |
7596 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7597 | } |
7598 | ||
7599 | /* Add global keymap at the end. */ | |
7600 | maps[nmaps++] = current_global_map; | |
7601 | ||
7602 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7603 | key `tool-bar'. */ |
7ee32cda GM |
7604 | for (i = nmaps - 1; i >= 0; --i) |
7605 | if (!NILP (maps[i])) | |
7606 | { | |
7607 | Lisp_Object keymap; | |
db785038 | 7608 | |
341a09cf | 7609 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7610 | if (CONSP (keymap)) |
7ee32cda GM |
7611 | { |
7612 | Lisp_Object tail; | |
c60ee5e7 | 7613 | |
7ee32cda | 7614 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ |
7539e11f | 7615 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7616 | { |
7617 | Lisp_Object keydef = XCAR (tail); | |
7618 | if (CONSP (keydef)) | |
9ea173e8 | 7619 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7620 | } |
7621 | } | |
7622 | } | |
7623 | ||
7624 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7625 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7626 | return tool_bar_items_vector; | |
7ee32cda GM |
7627 | } |
7628 | ||
7629 | ||
7630 | /* Process the definition of KEY which is DEF. */ | |
7631 | ||
7632 | static void | |
9ea173e8 | 7633 | process_tool_bar_item (key, def) |
7ee32cda GM |
7634 | Lisp_Object key, def; |
7635 | { | |
7636 | int i; | |
7637 | extern Lisp_Object Qundefined; | |
7638 | struct gcpro gcpro1, gcpro2; | |
7639 | ||
9ea173e8 | 7640 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7641 | eval. */ |
7642 | GCPRO2 (key, def); | |
7643 | ||
7644 | if (EQ (def, Qundefined)) | |
7645 | { | |
7646 | /* If a map has an explicit `undefined' as definition, | |
7647 | discard any previously made item. */ | |
9ea173e8 | 7648 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7649 | { |
9ea173e8 | 7650 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 7651 | |
9ea173e8 | 7652 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7653 | { |
9ea173e8 GM |
7654 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7655 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7656 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7657 | * sizeof (Lisp_Object))); |
9ea173e8 | 7658 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7659 | break; |
7660 | } | |
7661 | } | |
7662 | } | |
9ea173e8 GM |
7663 | else if (parse_tool_bar_item (key, def)) |
7664 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7665 | more than one definition for the same key. */ |
9ea173e8 | 7666 | append_tool_bar_item (); |
7ee32cda GM |
7667 | |
7668 | UNGCPRO; | |
7669 | } | |
7670 | ||
7671 | ||
9ea173e8 GM |
7672 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7673 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7674 | invalid. |
7675 | ||
7676 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 7677 | |
7ee32cda GM |
7678 | CAPTION is the caption of the item, If it's not a string, it is |
7679 | evaluated to get a string. | |
c60ee5e7 | 7680 | |
9ea173e8 | 7681 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7682 | as binding are currently ignored. |
7683 | ||
7684 | The following properties are recognized: | |
7685 | ||
7686 | - `:enable FORM'. | |
c60ee5e7 | 7687 | |
9ea173e8 GM |
7688 | FORM is evaluated and specifies whether the tool bar item is |
7689 | enabled or disabled. | |
c60ee5e7 | 7690 | |
7ee32cda | 7691 | - `:visible FORM' |
c60ee5e7 | 7692 | |
9ea173e8 | 7693 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 7694 | |
7ee32cda GM |
7695 | - `:filter FUNCTION' |
7696 | ||
7697 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7698 | result is stored as the new binding. | |
c60ee5e7 | 7699 | |
7ee32cda GM |
7700 | - `:button (TYPE SELECTED)' |
7701 | ||
7702 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7703 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 7704 | |
7ee32cda GM |
7705 | - `:image IMAGES' |
7706 | ||
7707 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7708 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 7709 | |
7ee32cda | 7710 | - `:help HELP-STRING'. |
c60ee5e7 | 7711 | |
9ea173e8 | 7712 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7713 | |
7714 | static int | |
9ea173e8 | 7715 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7716 | Lisp_Object key, item; |
7717 | { | |
9ea173e8 GM |
7718 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7719 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7720 | |
7721 | Lisp_Object filter = Qnil; | |
7722 | Lisp_Object caption; | |
7ee32cda | 7723 | int i; |
7ee32cda | 7724 | |
8c907a56 GM |
7725 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7726 | Rule out items that aren't lists, don't start with | |
7727 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7728 | list. */ |
7729 | if (!CONSP (item) | |
7730 | || !EQ (XCAR (item), Qmenu_item) | |
7731 | || (item = XCDR (item), | |
7732 | !CONSP (item))) | |
7733 | return 0; | |
7734 | ||
9ea173e8 | 7735 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7736 | defaults. */ |
9ea173e8 | 7737 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7738 | { |
9ea173e8 | 7739 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7740 | PROP (i) = Qnil; |
7741 | } | |
7742 | else | |
9ea173e8 GM |
7743 | tool_bar_item_properties |
7744 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 7745 | |
7ee32cda | 7746 | /* Set defaults. */ |
9ea173e8 GM |
7747 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7748 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 7749 | |
7ee32cda GM |
7750 | /* Get the caption of the item. If the caption is not a string, |
7751 | evaluate it to get a string. If we don't get a string, skip this | |
7752 | item. */ | |
7753 | caption = XCAR (item); | |
7754 | if (!STRINGP (caption)) | |
7755 | { | |
7756 | caption = menu_item_eval_property (caption); | |
7757 | if (!STRINGP (caption)) | |
7758 | return 0; | |
7759 | } | |
9ea173e8 | 7760 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7761 | |
7762 | /* Give up if rest following the caption is not a list. */ | |
7763 | item = XCDR (item); | |
7764 | if (!CONSP (item)) | |
7765 | return 0; | |
7766 | ||
7767 | /* Store the binding. */ | |
9ea173e8 | 7768 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7769 | item = XCDR (item); |
7770 | ||
8c907a56 GM |
7771 | /* Ignore cached key binding, if any. */ |
7772 | if (CONSP (item) && CONSP (XCAR (item))) | |
7773 | item = XCDR (item); | |
7774 | ||
7ee32cda GM |
7775 | /* Process the rest of the properties. */ |
7776 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7777 | { | |
7778 | Lisp_Object key, value; | |
7779 | ||
7780 | key = XCAR (item); | |
7781 | value = XCAR (XCDR (item)); | |
7782 | ||
7783 | if (EQ (key, QCenable)) | |
7784 | /* `:enable FORM'. */ | |
9ea173e8 | 7785 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7786 | else if (EQ (key, QCvisible)) |
7787 | { | |
7788 | /* `:visible FORM'. If got a visible property and that | |
7789 | evaluates to nil then ignore this item. */ | |
7790 | if (NILP (menu_item_eval_property (value))) | |
7791 | return 0; | |
7792 | } | |
7793 | else if (EQ (key, QChelp)) | |
7794 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7795 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7796 | else if (EQ (key, QCfilter)) |
7797 | /* ':filter FORM'. */ | |
7798 | filter = value; | |
7799 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7800 | { | |
7801 | /* `:button (TYPE . SELECTED)'. */ | |
7802 | Lisp_Object type, selected; | |
7803 | ||
7804 | type = XCAR (value); | |
7805 | selected = XCDR (value); | |
7806 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7807 | { | |
9ea173e8 GM |
7808 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7809 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7810 | } |
7811 | } | |
7812 | else if (EQ (key, QCimage) | |
7813 | && (CONSP (value) | |
7814 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7815 | /* Value is either a single image specification or a vector | |
27fd22dc | 7816 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7817 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7818 | } |
7819 | ||
7820 | /* If got a filter apply it on binding. */ | |
7821 | if (!NILP (filter)) | |
9ea173e8 | 7822 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7823 | = menu_item_eval_property (list2 (filter, |
7824 | list2 (Qquote, | |
9ea173e8 | 7825 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7826 | |
7827 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7828 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7829 | return 0; |
7830 | ||
7831 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7832 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7833 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7834 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 7835 | |
c60ee5e7 | 7836 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
7837 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7838 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7839 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7840 | |
7841 | return 1; | |
c60ee5e7 | 7842 | |
7ee32cda GM |
7843 | #undef PROP |
7844 | } | |
7845 | ||
7846 | ||
9ea173e8 GM |
7847 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7848 | that can be reused. */ | |
7ee32cda GM |
7849 | |
7850 | static void | |
9ea173e8 | 7851 | init_tool_bar_items (reuse) |
7ee32cda GM |
7852 | Lisp_Object reuse; |
7853 | { | |
7854 | if (VECTORP (reuse)) | |
9ea173e8 | 7855 | tool_bar_items_vector = reuse; |
7ee32cda | 7856 | else |
9ea173e8 GM |
7857 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
7858 | ntool_bar_items = 0; | |
7ee32cda GM |
7859 | } |
7860 | ||
7861 | ||
9ea173e8 GM |
7862 | /* Append parsed tool bar item properties from |
7863 | tool_bar_item_properties */ | |
7ee32cda GM |
7864 | |
7865 | static void | |
9ea173e8 | 7866 | append_tool_bar_item () |
7ee32cda GM |
7867 | { |
7868 | Lisp_Object *to, *from; | |
c60ee5e7 | 7869 | |
9ea173e8 GM |
7870 | /* Enlarge tool_bar_items_vector if necessary. */ |
7871 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
7872 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
7873 | { |
7874 | Lisp_Object new_vector; | |
9ea173e8 | 7875 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
7876 | |
7877 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 7878 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
7879 | XVECTOR (new_vector)->contents, |
7880 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 7881 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
7882 | } |
7883 | ||
9ea173e8 GM |
7884 | /* Append entries from tool_bar_item_properties to the end of |
7885 | tool_bar_items_vector. */ | |
7886 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
7887 | from = XVECTOR (tool_bar_item_properties)->contents; | |
7888 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
7889 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
7890 | } |
7891 | ||
7892 | ||
7893 | ||
7894 | ||
e8886a1d | 7895 | \f |
dcc408a0 RS |
7896 | /* Read a character using menus based on maps in the array MAPS. |
7897 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
7898 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
7899 | |
7900 | PREV_EVENT is the previous input event, or nil if we are reading | |
7901 | the first event of a key sequence. | |
7902 | ||
83d68044 | 7903 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 7904 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 7905 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
7906 | |
7907 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 7908 | and the strings associated with various map elements. |
8150596a RS |
7909 | |
7910 | This can be done with X menus or with menus put in the minibuf. | |
7911 | These are done in different ways, depending on how the input will be read. | |
7912 | Menus using X are done after auto-saving in read-char, getting the input | |
7913 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
7914 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 7915 | |
7617111f | 7916 | static Lisp_Object |
8150596a | 7917 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
7918 | int nmaps; |
7919 | Lisp_Object *maps; | |
7920 | Lisp_Object prev_event; | |
7921 | int *used_mouse_menu; | |
284f4730 | 7922 | { |
7d6de002 | 7923 | int mapno; |
14e40288 | 7924 | register Lisp_Object name = Qnil; |
7d6de002 | 7925 | |
6569cc8d JB |
7926 | if (used_mouse_menu) |
7927 | *used_mouse_menu = 0; | |
284f4730 JB |
7928 | |
7929 | /* Use local over global Menu maps */ | |
7930 | ||
7d6de002 RS |
7931 | if (! menu_prompting) |
7932 | return Qnil; | |
7933 | ||
03361bcc RS |
7934 | /* Optionally disregard all but the global map. */ |
7935 | if (inhibit_local_menu_bar_menus) | |
7936 | { | |
7937 | maps += (nmaps - 1); | |
7938 | nmaps = 1; | |
7939 | } | |
7940 | ||
7d6de002 RS |
7941 | /* Get the menu name from the first map that has one (a prompt string). */ |
7942 | for (mapno = 0; mapno < nmaps; mapno++) | |
7943 | { | |
bdb7aa47 | 7944 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
7945 | if (!NILP (name)) |
7946 | break; | |
7947 | } | |
284f4730 | 7948 | |
7d6de002 | 7949 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 7950 | if (!STRINGP (name)) |
7d6de002 RS |
7951 | return Qnil; |
7952 | ||
1f5b1641 | 7953 | #ifdef HAVE_MENUS |
7d6de002 RS |
7954 | /* If we got to this point via a mouse click, |
7955 | use a real menu for mouse selection. */ | |
5a8d99e0 | 7956 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
7957 | && !EQ (XCAR (prev_event), Qmenu_bar) |
7958 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
7959 | { |
7960 | /* Display the menu and get the selection. */ | |
7961 | Lisp_Object *realmaps | |
7962 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
7963 | Lisp_Object value; | |
7964 | int nmaps1 = 0; | |
7965 | ||
7966 | /* Use the maps that are not nil. */ | |
7967 | for (mapno = 0; mapno < nmaps; mapno++) | |
7968 | if (!NILP (maps[mapno])) | |
7969 | realmaps[nmaps1++] = maps[mapno]; | |
7970 | ||
7971 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
7972 | if (CONSP (value)) |
7973 | { | |
68f297c5 RS |
7974 | Lisp_Object tem; |
7975 | ||
7539e11f | 7976 | record_menu_key (XCAR (value)); |
8eb4d8ef | 7977 | |
68f297c5 RS |
7978 | /* If we got multiple events, unread all but |
7979 | the first. | |
7980 | There is no way to prevent those unread events | |
7981 | from showing up later in last_nonmenu_event. | |
7982 | So turn symbol and integer events into lists, | |
7983 | to indicate that they came from a mouse menu, | |
7984 | so that when present in last_nonmenu_event | |
7985 | they won't confuse things. */ | |
f4e05d97 | 7986 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 7987 | { |
7539e11f KR |
7988 | record_menu_key (XCAR (tem)); |
7989 | if (SYMBOLP (XCAR (tem)) | |
7990 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 7991 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 7992 | } |
68f297c5 | 7993 | |
663258f2 JB |
7994 | /* If we got more than one event, put all but the first |
7995 | onto this list to be read later. | |
7996 | Return just the first event now. */ | |
24597608 | 7997 | Vunread_command_events |
7539e11f KR |
7998 | = nconc2 (XCDR (value), Vunread_command_events); |
7999 | value = XCAR (value); | |
663258f2 | 8000 | } |
1c90c381 | 8001 | else if (NILP (value)) |
dcc408a0 | 8002 | value = Qt; |
6569cc8d JB |
8003 | if (used_mouse_menu) |
8004 | *used_mouse_menu = 1; | |
7d6de002 RS |
8005 | return value; |
8006 | } | |
1f5b1641 | 8007 | #endif /* HAVE_MENUS */ |
8150596a RS |
8008 | return Qnil ; |
8009 | } | |
8010 | ||
af2b7cc9 KS |
8011 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8012 | We make this bigger when necessary, and never free it. */ | |
8013 | static char *read_char_minibuf_menu_text; | |
8014 | /* Size of that buffer. */ | |
8015 | static int read_char_minibuf_menu_width; | |
8016 | ||
8150596a | 8017 | static Lisp_Object |
24597608 | 8018 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8019 | int commandflag ; |
8020 | int nmaps; | |
8021 | Lisp_Object *maps; | |
8022 | { | |
8023 | int mapno; | |
8024 | register Lisp_Object name; | |
af2b7cc9 | 8025 | int nlength; |
14e40288 | 8026 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8027 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8028 | int idx = -1; |
af2b7cc9 | 8029 | int nobindings = 1; |
8150596a | 8030 | Lisp_Object rest, vector; |
af2b7cc9 | 8031 | char *menu; |
8150596a | 8032 | |
8c907a56 | 8033 | vector = Qnil; |
7189cad8 | 8034 | name = Qnil; |
8c907a56 | 8035 | |
8150596a RS |
8036 | if (! menu_prompting) |
8037 | return Qnil; | |
8038 | ||
af2b7cc9 KS |
8039 | /* Make sure we have a big enough buffer for the menu text. */ |
8040 | if (read_char_minibuf_menu_text == 0) | |
8041 | { | |
8042 | read_char_minibuf_menu_width = width + 4; | |
8043 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8044 | } | |
8045 | else if (width + 4 > read_char_minibuf_menu_width) | |
8046 | { | |
8047 | read_char_minibuf_menu_width = width + 4; | |
8048 | read_char_minibuf_menu_text | |
8049 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8050 | } | |
8051 | menu = read_char_minibuf_menu_text; | |
8052 | ||
8150596a RS |
8053 | /* Get the menu name from the first map that has one (a prompt string). */ |
8054 | for (mapno = 0; mapno < nmaps; mapno++) | |
8055 | { | |
bdb7aa47 | 8056 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
8057 | if (!NILP (name)) |
8058 | break; | |
8059 | } | |
8060 | ||
8061 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 8062 | if (!STRINGP (name)) |
8150596a | 8063 | return Qnil; |
284f4730 | 8064 | |
af2b7cc9 | 8065 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8066 | strcpy (menu, SDATA (name)); |
8067 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8068 | menu[nlength++] = ':'; |
8069 | menu[nlength++] = ' '; | |
8070 | menu[nlength] = 0; | |
8071 | ||
7d6de002 RS |
8072 | /* Start prompting at start of first map. */ |
8073 | mapno = 0; | |
8074 | rest = maps[mapno]; | |
284f4730 | 8075 | |
af2b7cc9 KS |
8076 | /* Present the documented bindings, a line at a time. */ |
8077 | while (1) | |
284f4730 | 8078 | { |
af2b7cc9 KS |
8079 | int notfirst = 0; |
8080 | int i = nlength; | |
8081 | Lisp_Object obj; | |
8082 | int ch; | |
8083 | Lisp_Object orig_defn_macro; | |
284f4730 | 8084 | |
af2b7cc9 KS |
8085 | /* Loop over elements of map. */ |
8086 | while (i < width) | |
284f4730 | 8087 | { |
af2b7cc9 | 8088 | Lisp_Object elt; |
284f4730 | 8089 | |
af2b7cc9 KS |
8090 | /* If reached end of map, start at beginning of next map. */ |
8091 | if (NILP (rest)) | |
8092 | { | |
8093 | mapno++; | |
8094 | /* At end of last map, wrap around to first map if just starting, | |
8095 | or end this line if already have something on it. */ | |
8096 | if (mapno == nmaps) | |
8097 | { | |
8098 | mapno = 0; | |
8099 | if (notfirst || nobindings) break; | |
8100 | } | |
8101 | rest = maps[mapno]; | |
8102 | } | |
7d6de002 | 8103 | |
af2b7cc9 KS |
8104 | /* Look at the next element of the map. */ |
8105 | if (idx >= 0) | |
8106 | elt = XVECTOR (vector)->contents[idx]; | |
8107 | else | |
8108 | elt = Fcar_safe (rest); | |
7d6de002 | 8109 | |
af2b7cc9 | 8110 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8111 | { |
af2b7cc9 KS |
8112 | /* If we found a dense table in the keymap, |
8113 | advanced past it, but start scanning its contents. */ | |
8114 | rest = Fcdr_safe (rest); | |
8115 | vector = elt; | |
8116 | idx = 0; | |
284f4730 | 8117 | } |
7d6de002 RS |
8118 | else |
8119 | { | |
af2b7cc9 KS |
8120 | /* An ordinary element. */ |
8121 | Lisp_Object event, tem; | |
7d6de002 | 8122 | |
af2b7cc9 KS |
8123 | if (idx < 0) |
8124 | { | |
8125 | event = Fcar_safe (elt); /* alist */ | |
8126 | elt = Fcdr_safe (elt); | |
8127 | } | |
8128 | else | |
8129 | { | |
8130 | XSETINT (event, idx); /* vector */ | |
8131 | } | |
284f4730 | 8132 | |
af2b7cc9 KS |
8133 | /* Ignore the element if it has no prompt string. */ |
8134 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8135 | { | |
8136 | /* 1 if the char to type matches the string. */ | |
8137 | int char_matches; | |
8138 | Lisp_Object upcased_event, downcased_event; | |
8139 | Lisp_Object desc = Qnil; | |
8140 | Lisp_Object s | |
8141 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8142 | ||
8143 | upcased_event = Fupcase (event); | |
8144 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8145 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8146 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8147 | if (! char_matches) |
8148 | desc = Fsingle_key_description (event, Qnil); | |
8149 | ||
8150 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8151 | the prefix is what the user has already typed. */ | |
8152 | tem | |
8153 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8154 | if (!NILP (tem)) | |
8155 | /* Insert equivalent keybinding. */ | |
8156 | s = concat2 (s, tem); | |
8157 | #endif | |
8158 | tem | |
8159 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8160 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8161 | { | |
8162 | /* Insert button prefix. */ | |
8163 | Lisp_Object selected | |
8164 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8165 | if (EQ (tem, QCradio)) | |
8166 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8167 | else | |
8168 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8169 | s = concat2 (tem, s); | |
8170 | } | |
c60ee5e7 | 8171 | |
af2b7cc9 KS |
8172 | |
8173 | /* If we have room for the prompt string, add it to this line. | |
8174 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8175 | if ((SCHARS (s) + i + 2 |
8176 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8177 | < width |
8178 | || !notfirst) | |
8179 | { | |
8180 | int thiswidth; | |
8181 | ||
8182 | /* Punctuate between strings. */ | |
8183 | if (notfirst) | |
8184 | { | |
8185 | strcpy (menu + i, ", "); | |
8186 | i += 2; | |
8187 | } | |
8188 | notfirst = 1; | |
8189 | nobindings = 0 ; | |
8190 | ||
8191 | /* If the char to type doesn't match the string's | |
8192 | first char, explicitly show what char to type. */ | |
8193 | if (! char_matches) | |
8194 | { | |
8195 | /* Add as much of string as fits. */ | |
d5db4077 | 8196 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8197 | if (thiswidth + i > width) |
8198 | thiswidth = width - i; | |
d5db4077 | 8199 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8200 | i += thiswidth; |
8201 | strcpy (menu + i, " = "); | |
8202 | i += 3; | |
8203 | } | |
8204 | ||
8205 | /* Add as much of string as fits. */ | |
d5db4077 | 8206 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8207 | if (thiswidth + i > width) |
8208 | thiswidth = width - i; | |
d5db4077 | 8209 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8210 | i += thiswidth; |
8211 | menu[i] = 0; | |
8212 | } | |
8213 | else | |
8214 | { | |
8215 | /* If this element does not fit, end the line now, | |
8216 | and save the element for the next line. */ | |
8217 | strcpy (menu + i, "..."); | |
8218 | break; | |
8219 | } | |
8220 | } | |
8221 | ||
8222 | /* Move past this element. */ | |
8223 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8224 | /* Handle reaching end of dense table. */ | |
8225 | idx = -1; | |
8226 | if (idx >= 0) | |
8227 | idx++; | |
8228 | else | |
8229 | rest = Fcdr_safe (rest); | |
8230 | } | |
325309f5 | 8231 | } |
8150596a | 8232 | |
af2b7cc9 | 8233 | /* Prompt with that and read response. */ |
c60ee5e7 | 8234 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8235 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8236 | |
af2b7cc9 KS |
8237 | /* Make believe its not a keyboard macro in case the help char |
8238 | is pressed. Help characters are not recorded because menu prompting | |
8239 | is not used on replay. | |
8240 | */ | |
8241 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8242 | current_kboard->defining_kbd_macro = Qnil; | |
8243 | do | |
8244 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
8245 | while (BUFFERP (obj)); | |
8246 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8247 | |
af2b7cc9 KS |
8248 | if (!INTEGERP (obj)) |
8249 | return obj; | |
8250 | else | |
8251 | ch = XINT (obj); | |
8252 | ||
8253 | if (! EQ (obj, menu_prompt_more_char) | |
8254 | && (!INTEGERP (menu_prompt_more_char) | |
8255 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8256 | { | |
8257 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8258 | store_kbd_macro_char (obj); | |
8259 | return obj; | |
8260 | } | |
8261 | /* Help char - go round again */ | |
8262 | } | |
284f4730 | 8263 | } |
284f4730 JB |
8264 | \f |
8265 | /* Reading key sequences. */ | |
8266 | ||
8267 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8268 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8269 | keymap, or nil otherwise. Return the index of the first keymap in | |
8270 | which KEY has any binding, or NMAPS if no map has a binding. | |
8271 | ||
8272 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8273 | followed by the corresponding non-meta character. Keymaps in | |
8274 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8275 | NEXT. | |
8276 | ||
88cb0656 JB |
8277 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8278 | unmodified. | |
8279 | ||
569871d2 | 8280 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8281 | |
8282 | static int | |
4e50f26a | 8283 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8284 | Lisp_Object key; |
8285 | Lisp_Object *current, *defs, *next; | |
8286 | int nmaps; | |
8287 | { | |
8288 | int i, first_binding; | |
8289 | ||
284f4730 JB |
8290 | first_binding = nmaps; |
8291 | for (i = nmaps - 1; i >= 0; i--) | |
8292 | { | |
8293 | if (! NILP (current[i])) | |
8294 | { | |
fe5b94c5 | 8295 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8296 | if (! NILP (defs[i])) |
8297 | first_binding = i; | |
8298 | } | |
8299 | else | |
8300 | defs[i] = Qnil; | |
8301 | } | |
8302 | ||
284f4730 | 8303 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8304 | if (first_binding < nmaps) |
8305 | for (i = 0; i < nmaps; i++) | |
02067692 | 8306 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8307 | |
8308 | return first_binding; | |
8309 | } | |
8310 | ||
a7f26f28 SM |
8311 | /* Structure used to keep track of partial application of key remapping |
8312 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8313 | typedef struct keyremap | |
8314 | { | |
24d80a06 | 8315 | Lisp_Object map, parent; |
a7f26f28 SM |
8316 | int start, end; |
8317 | } keyremap; | |
8318 | ||
fe5b94c5 SM |
8319 | /* Lookup KEY in MAP. |
8320 | MAP is a keymap mapping keys to key vectors or functions. | |
8321 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8322 | the function is called with PROMPT as parameter and its return | |
8323 | value is used as the return value of this function (after checking | |
8324 | that it is indeed a vector). */ | |
8325 | ||
8326 | static Lisp_Object | |
8327 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8328 | Lisp_Object map, key, prompt; | |
8329 | int do_funcall; | |
8330 | { | |
8331 | Lisp_Object next; | |
2320865d | 8332 | |
fe5b94c5 SM |
8333 | next = access_keymap (map, key, 1, 0, 1); |
8334 | ||
8335 | /* Handle symbol with autoload definition. */ | |
8336 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8337 | && CONSP (XSYMBOL (next)->function) | |
8338 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8339 | do_autoload (XSYMBOL (next)->function, next); | |
8340 | ||
8341 | /* Handle a symbol whose function definition is a keymap | |
8342 | or an array. */ | |
8343 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8344 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
8345 | || KEYMAPP (XSYMBOL (next)->function))) | |
8346 | next = XSYMBOL (next)->function; | |
2320865d | 8347 | |
fe5b94c5 SM |
8348 | /* If the keymap gives a function, not an |
8349 | array, then call the function with one arg and use | |
8350 | its value instead. */ | |
8351 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8352 | { | |
8353 | Lisp_Object tem; | |
8354 | tem = next; | |
8355 | ||
8356 | next = call1 (next, prompt); | |
8357 | /* If the function returned something invalid, | |
8358 | barf--don't ignore it. | |
8359 | (To ignore it safely, we would need to gcpro a bunch of | |
8360 | other variables.) */ | |
8361 | if (! (VECTORP (next) || STRINGP (next))) | |
8362 | error ("Function %s returns invalid key sequence", tem); | |
8363 | } | |
8364 | return next; | |
8365 | } | |
8366 | ||
8367 | /* Do one step of the key remapping used for function-key-map and | |
8368 | key-translation-map: | |
8369 | KEYBUF is the buffer holding the input events. | |
8370 | BUFSIZE is its maximum size. | |
8371 | FKEY is a pointer to the keyremap structure to use. | |
8372 | INPUT is the index of the last element in KEYBUF. | |
8373 | DOIT if non-zero says that the remapping can actually take place. | |
8374 | DIFF is used to return the number of keys added/removed by the remapping. | |
8375 | PARENT is the root of the keymap. | |
8376 | PROMPT is the prompt to use if the remapping happens through a function. | |
8377 | The return value is non-zero if the remapping actually took place. */ | |
8378 | ||
8379 | static int | |
24d80a06 SM |
8380 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
8381 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
8382 | keyremap *fkey; |
8383 | int input, doit, *diff, bufsize; | |
8384 | { | |
8385 | Lisp_Object next, key; | |
8386 | ||
8387 | key = keybuf[fkey->end++]; | |
8388 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8389 | ||
8390 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8391 | map and we're in a position to do the key remapping, replace it with | |
8392 | the binding and restart with fkey->start at the end. */ | |
8393 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
8394 | { | |
8395 | int len = XFASTINT (Flength (next)); | |
8396 | int i; | |
8397 | ||
8398 | *diff = len - (fkey->end - fkey->start); | |
8399 | ||
8400 | if (input + *diff >= bufsize) | |
8401 | error ("Key sequence too long"); | |
8402 | ||
8403 | /* Shift the keys that follow fkey->end. */ | |
8404 | if (*diff < 0) | |
8405 | for (i = fkey->end; i < input; i++) | |
8406 | keybuf[i + *diff] = keybuf[i]; | |
8407 | else if (*diff > 0) | |
8408 | for (i = input - 1; i >= fkey->end; i--) | |
8409 | keybuf[i + *diff] = keybuf[i]; | |
8410 | /* Overwrite the old keys with the new ones. */ | |
8411 | for (i = 0; i < len; i++) | |
8412 | keybuf[fkey->start + i] | |
8413 | = Faref (next, make_number (i)); | |
8414 | ||
8415 | fkey->start = fkey->end += *diff; | |
24d80a06 | 8416 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8417 | |
8418 | return 1; | |
8419 | } | |
8420 | ||
8421 | fkey->map = get_keymap (next, 0, 1); | |
8422 | ||
8423 | /* If we no longer have a bound suffix, try a new position for | |
8424 | fkey->start. */ | |
8425 | if (!CONSP (fkey->map)) | |
8426 | { | |
8427 | fkey->end = ++fkey->start; | |
24d80a06 | 8428 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8429 | } |
8430 | return 0; | |
8431 | } | |
a7f26f28 | 8432 | |
df0f2ba1 | 8433 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8434 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8435 | Prompt with PROMPT. | |
284f4730 | 8436 | Return the length of the key sequence stored. |
dcc408a0 | 8437 | Return -1 if the user rejected a command menu. |
284f4730 | 8438 | |
f4255cd1 JB |
8439 | Echo starting immediately unless `prompt' is 0. |
8440 | ||
8441 | Where a key sequence ends depends on the currently active keymaps. | |
8442 | These include any minor mode keymaps active in the current buffer, | |
8443 | the current buffer's local map, and the global map. | |
8444 | ||
8445 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8446 | to see if some trailing subsequence might be the beginning of a | |
8447 | function key's sequence. If so, we try to read the whole function | |
8448 | key, and substitute its symbolic name into the key sequence. | |
8449 | ||
fbcd35bd JB |
8450 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8451 | `double-' events into similar click events, if that would make them | |
8452 | bound. We try to turn `triple-' events first into `double-' events, | |
8453 | then into clicks. | |
f4255cd1 JB |
8454 | |
8455 | If we get a mouse click in a mode line, vertical divider, or other | |
8456 | non-text area, we treat the click as if it were prefixed by the | |
8457 | symbol denoting that area - `mode-line', `vertical-line', or | |
8458 | whatever. | |
8459 | ||
8460 | If the sequence starts with a mouse click, we read the key sequence | |
8461 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8462 | |
f4255cd1 JB |
8463 | If the user switches frames in the midst of a key sequence, we put |
8464 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8465 | read_char will return it. |
8466 | ||
8467 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8468 | from the selected window's buffer. */ | |
48e416d4 | 8469 | |
284f4730 | 8470 | static int |
ce98e608 | 8471 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8472 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8473 | Lisp_Object *keybuf; |
8474 | int bufsize; | |
84d91fda | 8475 | Lisp_Object prompt; |
309b0fc8 | 8476 | int dont_downcase_last; |
ce98e608 | 8477 | int can_return_switch_frame; |
f571ae0d | 8478 | int fix_current_buffer; |
284f4730 | 8479 | { |
db14cfc5 | 8480 | volatile Lisp_Object from_string; |
aed13378 | 8481 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8482 | |
284f4730 | 8483 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8484 | volatile int t; |
284f4730 | 8485 | |
284f4730 JB |
8486 | /* The length of the echo buffer when we started reading, and |
8487 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8488 | volatile int echo_start; |
8489 | volatile int keys_start; | |
284f4730 JB |
8490 | |
8491 | /* The number of keymaps we're scanning right now, and the number of | |
8492 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8493 | volatile int nmaps; |
8494 | volatile int nmaps_allocated = 0; | |
284f4730 | 8495 | |
284f4730 JB |
8496 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8497 | the current keymaps. */ | |
8c907a56 | 8498 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8499 | |
f4255cd1 JB |
8500 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8501 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8502 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8503 | |
e0dff5f6 | 8504 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8505 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8506 | |
30690496 DL |
8507 | /* The map from the `keymap' property to start out with at start of |
8508 | key sequence. */ | |
8c907a56 | 8509 | volatile Lisp_Object orig_keymap; |
30690496 | 8510 | |
e0dff5f6 RS |
8511 | /* 1 if we have already considered switching to the local-map property |
8512 | of the place where a mouse click occurred. */ | |
8c907a56 | 8513 | volatile int localized_local_map = 0; |
e0dff5f6 | 8514 | |
f4255cd1 JB |
8515 | /* The index in defs[] of the first keymap that has a binding for |
8516 | this key sequence. In other words, the lowest i such that | |
8517 | defs[i] is non-nil. */ | |
8c907a56 | 8518 | volatile int first_binding; |
7189cad8 | 8519 | /* Index of the first key that has no binding. |
a7f26f28 | 8520 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 8521 | volatile int first_unbound; |
284f4730 | 8522 | |
f4255cd1 | 8523 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8524 | input key. |
8525 | ||
8526 | We use this to recover after recognizing a function key. Once we | |
8527 | realize that a suffix of the current key sequence is actually a | |
8528 | function key's escape sequence, we replace the suffix with the | |
8529 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8530 | contains a new and different key sequence, so the echo area, |
8531 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8532 | this situation, we set mock_input to t, set t to 0, and jump to | |
8533 | restart_sequence; the loop will read keys from keybuf up until | |
8534 | mock_input, thus rebuilding the state; and then it will resume | |
8535 | reading characters from the keyboard. */ | |
8c907a56 | 8536 | volatile int mock_input = 0; |
284f4730 | 8537 | |
253598e4 | 8538 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8539 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8540 | and fkey.map is its binding. | |
253598e4 | 8541 | |
f4255cd1 JB |
8542 | These might be > t, indicating that all function key scanning |
8543 | should hold off until t reaches them. We do this when we've just | |
8544 | recognized a function key, to avoid searching for the function | |
8545 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 8546 | volatile keyremap fkey; |
284f4730 | 8547 | |
a612e298 | 8548 | /* Likewise, for key_translation_map. */ |
a7f26f28 | 8549 | volatile keyremap keytran; |
a612e298 | 8550 | |
fe5b94c5 SM |
8551 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
8552 | a key sequence, we put it off for later. | |
8553 | While we're reading, we keep the event here. */ | |
8c907a56 | 8554 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8555 | |
51763820 BF |
8556 | /* See the comment below... */ |
8557 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8558 | Lisp_Object first_event; |
51763820 | 8559 | #endif |
4efda7dd | 8560 | |
8c907a56 GM |
8561 | volatile Lisp_Object original_uppercase; |
8562 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8563 | |
bc536d84 | 8564 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8565 | int dummyflag = 0; |
bc536d84 | 8566 | |
3b9189f8 RS |
8567 | struct buffer *starting_buffer; |
8568 | ||
2dc00208 GM |
8569 | /* List of events for which a fake prefix key has been generated. */ |
8570 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8571 | ||
03cee6ae | 8572 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8573 | int junk; |
03cee6ae | 8574 | #endif |
4efda7dd | 8575 | |
2dc00208 GM |
8576 | struct gcpro gcpro1; |
8577 | ||
8578 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8579 | raw_keybuf_count = 0; |
8580 | ||
4efda7dd RS |
8581 | last_nonmenu_event = Qnil; |
8582 | ||
8583 | delayed_switch_frame = Qnil; | |
24d80a06 SM |
8584 | fkey.map = fkey.parent = Vfunction_key_map; |
8585 | keytran.map = keytran.parent = Vkey_translation_map; | |
a7f26f28 SM |
8586 | /* If there is no translation-map, turn off scanning. */ |
8587 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; | |
8588 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
a612e298 | 8589 | |
284f4730 JB |
8590 | if (INTERACTIVE) |
8591 | { | |
84d91fda | 8592 | if (!NILP (prompt)) |
a4ef85ee | 8593 | echo_prompt (prompt); |
f2647d04 DL |
8594 | else if (cursor_in_echo_area |
8595 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8596 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8597 | /* This doesn't put in a dash if the echo buffer is empty, so |
8598 | you don't always see a dash hanging out in the minibuffer. */ | |
8599 | echo_dash (); | |
284f4730 JB |
8600 | } |
8601 | ||
f4255cd1 JB |
8602 | /* Record the initial state of the echo area and this_command_keys; |
8603 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8604 | if (INTERACTIVE) |
df0f2ba1 | 8605 | echo_start = echo_length (); |
f4255cd1 | 8606 | keys_start = this_command_key_count; |
6321824f | 8607 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8608 | |
51763820 BF |
8609 | #if defined (GOBBLE_FIRST_EVENT) |
8610 | /* This doesn't quite work, because some of the things that read_char | |
8611 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8612 | this work right. */ |
51763820 | 8613 | |
4efda7dd RS |
8614 | /* Read the first char of the sequence specially, before setting |
8615 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8616 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8617 | &junk); |
51763820 | 8618 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8619 | |
24a40fbb GM |
8620 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8621 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8622 | from_string = Qnil; |
e0dff5f6 | 8623 | |
7b4aedb9 JB |
8624 | /* We jump here when the key sequence has been thoroughly changed, and |
8625 | we need to rescan it starting from the beginning. When we jump here, | |
8626 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8627 | replay_sequence: |
7b4aedb9 | 8628 | |
3b9189f8 | 8629 | starting_buffer = current_buffer; |
7189cad8 | 8630 | first_unbound = bufsize + 1; |
3b9189f8 | 8631 | |
f4255cd1 | 8632 | /* Build our list of keymaps. |
07d2b8de JB |
8633 | If we recognize a function key and replace its escape sequence in |
8634 | keybuf with its symbol, or if the sequence starts with a mouse | |
8635 | click and we need to switch buffers, we jump back here to rebuild | |
8636 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8637 | nmaps = 0; |
284f4730 | 8638 | |
4cbedc16 RS |
8639 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8640 | || !NILP (Voverriding_local_map)) | |
8641 | { | |
8642 | if (3 > nmaps_allocated) | |
8643 | { | |
8644 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8645 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8646 | nmaps_allocated = 3; | |
8647 | } | |
8648 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8649 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8650 | if (!NILP (Voverriding_local_map)) | |
8651 | submaps[nmaps++] = Voverriding_local_map; | |
8652 | } | |
8653 | else | |
8654 | { | |
4cbedc16 RS |
8655 | int nminor; |
8656 | int total; | |
8657 | Lisp_Object *maps; | |
8658 | ||
8659 | nminor = current_minor_maps (0, &maps); | |
8660 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8661 | ||
8662 | if (total > nmaps_allocated) | |
8663 | { | |
8664 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8665 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8666 | nmaps_allocated = total; | |
8667 | } | |
8668 | ||
8669 | if (!NILP (orig_keymap)) | |
8670 | submaps[nmaps++] = orig_keymap; | |
8671 | ||
7d1c4866 | 8672 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8673 | nminor * sizeof (submaps[0])); |
8674 | ||
8675 | nmaps += nminor; | |
8676 | ||
8677 | submaps[nmaps++] = orig_local_map; | |
8678 | } | |
8679 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8680 | |
8681 | /* Find an accurate initial value for first_binding. */ | |
8682 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8683 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8684 | break; |
8685 | ||
3b9189f8 | 8686 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8687 | t = 0; |
8688 | ||
8689 | /* These are no-ops the first time through, but if we restart, they | |
8690 | revert the echo area and this_command_keys to their original state. */ | |
8691 | this_command_key_count = keys_start; | |
df0f2ba1 | 8692 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8693 | echo_truncate (echo_start); |
8694 | ||
cca310da JB |
8695 | /* If the best binding for the current key sequence is a keymap, or |
8696 | we may be looking at a function key's escape sequence, keep on | |
8697 | reading. */ | |
a7f26f28 SM |
8698 | while (first_binding < nmaps |
8699 | /* Keep reading as long as there's a prefix binding. */ | |
8700 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
8701 | /* Don't return in the middle of a possible function key sequence, |
8702 | if the only bindings we found were via case conversion. | |
8703 | Thus, if ESC O a has a function-key-map translation | |
8704 | and ESC o has a binding, don't return after ESC O, | |
8705 | so that we can translate ESC O plus the next character. */ | |
a7f26f28 | 8706 | : (fkey.start < t || keytran.start < t)) |
284f4730 JB |
8707 | { |
8708 | Lisp_Object key; | |
7d6de002 | 8709 | int used_mouse_menu = 0; |
284f4730 | 8710 | |
7b4aedb9 JB |
8711 | /* Where the last real key started. If we need to throw away a |
8712 | key that has expanded into more than one element of keybuf | |
8713 | (say, a mouse click on the mode line which is being treated | |
8714 | as [mode-line (mouse-...)], then we backtrack to this point | |
8715 | of keybuf. */ | |
8c907a56 | 8716 | volatile int last_real_key_start; |
7b4aedb9 | 8717 | |
0a7f1fc0 JB |
8718 | /* These variables are analogous to echo_start and keys_start; |
8719 | while those allow us to restart the entire key sequence, | |
8720 | echo_local_start and keys_local_start allow us to throw away | |
8721 | just one key. */ | |
8c907a56 | 8722 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8723 | |
fe5b94c5 SM |
8724 | eassert (fkey.end == t || (fkey.end > t && fkey.end <= mock_input)); |
8725 | eassert (fkey.start <= fkey.end); | |
8726 | eassert (keytran.start <= keytran.end); | |
2cf4b7b2 | 8727 | /* key-translation-map is applied *after* function-key-map. */ |
a7f26f28 | 8728 | eassert (keytran.end <= fkey.start); |
7189cad8 | 8729 | |
a7f26f28 | 8730 | if (first_unbound < fkey.start && first_unbound < keytran.start) |
7189cad8 SM |
8731 | { /* The prefix upto first_unbound has no binding and has |
8732 | no translation left to do either, so we know it's unbound. | |
8733 | If we don't stop now, we risk staying here indefinitely | |
8734 | (if the user keeps entering fkey or keytran prefixes | |
8735 | like C-c ESC ESC ESC ESC ...) */ | |
8736 | int i; | |
8737 | for (i = first_unbound + 1; i < t; i++) | |
8738 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8739 | mock_input = t - first_unbound - 1; | |
a7f26f28 | 8740 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 8741 | fkey.map = fkey.parent; |
a7f26f28 | 8742 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 8743 | keytran.map = keytran.parent; |
7189cad8 SM |
8744 | goto replay_sequence; |
8745 | } | |
8746 | ||
284f4730 | 8747 | if (t >= bufsize) |
3fe8e9a2 | 8748 | error ("Key sequence too long"); |
284f4730 | 8749 | |
f4255cd1 JB |
8750 | if (INTERACTIVE) |
8751 | echo_local_start = echo_length (); | |
8752 | keys_local_start = this_command_key_count; | |
8753 | local_first_binding = first_binding; | |
df0f2ba1 | 8754 | |
f4255cd1 | 8755 | replay_key: |
0a7f1fc0 | 8756 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8757 | jumped back up to replay_key; in that case, these restore the |
8758 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8759 | loop. */ |
40932d1a | 8760 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8761 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8762 | this_command_key_count = keys_local_start; |
8763 | first_binding = local_first_binding; | |
8764 | ||
7e85b935 RS |
8765 | /* By default, assume each event is "real". */ |
8766 | last_real_key_start = t; | |
8767 | ||
f4255cd1 | 8768 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8769 | if (t < mock_input) |
8770 | { | |
8771 | key = keybuf[t]; | |
8772 | add_command_key (key); | |
f2647d04 DL |
8773 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8774 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8775 | echo_char (key); |
284f4730 | 8776 | } |
253598e4 JB |
8777 | |
8778 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8779 | else |
8780 | { | |
beecf6a1 | 8781 | { |
c5fdd383 KH |
8782 | #ifdef MULTI_KBOARD |
8783 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8784 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8785 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8786 | { |
5798cf15 KH |
8787 | if (!NILP (delayed_switch_frame)) |
8788 | { | |
c5fdd383 | 8789 | interrupted_kboard->kbd_queue |
5798cf15 | 8790 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8791 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8792 | delayed_switch_frame = Qnil; |
8793 | } | |
beecf6a1 | 8794 | while (t > 0) |
c5fdd383 KH |
8795 | interrupted_kboard->kbd_queue |
8796 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8797 | |
8798 | /* If the side queue is non-empty, ensure it begins with a | |
8799 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8800 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8801 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8802 | !(EVENT_HAS_PARAMETERS (key) |
8803 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8804 | Qswitch_frame)))) | |
df0f2ba1 KH |
8805 | { |
8806 | Lisp_Object frame; | |
8807 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8808 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8809 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8810 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8811 | } |
beecf6a1 | 8812 | mock_input = 0; |
24a40fbb GM |
8813 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8814 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8815 | goto replay_sequence; |
8816 | } | |
bded54dd | 8817 | #endif |
8c907a56 GM |
8818 | key = read_char (NILP (prompt), nmaps, |
8819 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8820 | &used_mouse_menu); |
8821 | } | |
284f4730 | 8822 | |
dcc408a0 RS |
8823 | /* read_char returns t when it shows a menu and the user rejects it. |
8824 | Just return -1. */ | |
8825 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8826 | { |
8827 | unbind_to (count, Qnil); | |
2dc00208 | 8828 | UNGCPRO; |
7d18f9ae RS |
8829 | return -1; |
8830 | } | |
dcc408a0 | 8831 | |
f4255cd1 | 8832 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8833 | Emacs 18 handles this by returning immediately with a |
8834 | zero, so that's what we'll do. */ | |
8c18cbfb | 8835 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8836 | { |
f4255cd1 | 8837 | t = 0; |
bc536d84 RS |
8838 | /* The Microsoft C compiler can't handle the goto that |
8839 | would go here. */ | |
309b0fc8 | 8840 | dummyflag = 1; |
bc536d84 | 8841 | break; |
cd21b839 | 8842 | } |
df0f2ba1 | 8843 | |
3cb81011 KH |
8844 | /* If the current buffer has been changed from under us, the |
8845 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8846 | if (BUFFERP (key)) |
3cb81011 | 8847 | { |
5c12e63f | 8848 | timer_resume_idle (); |
3021d3a9 | 8849 | |
3cb81011 | 8850 | mock_input = t; |
f571ae0d RS |
8851 | /* Reset the current buffer from the selected window |
8852 | in case something changed the former and not the latter. | |
8853 | This is to be more consistent with the behavior | |
8854 | of the command_loop_1. */ | |
8855 | if (fix_current_buffer) | |
a94a4335 | 8856 | { |
788f89eb | 8857 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
8858 | Fkill_emacs (Qnil); |
8859 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
8860 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
8861 | } | |
f571ae0d | 8862 | |
24a40fbb GM |
8863 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8864 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
8865 | goto replay_sequence; |
8866 | } | |
8867 | ||
3b9189f8 RS |
8868 | /* If we have a quit that was typed in another frame, and |
8869 | quit_throw_to_read_char switched buffers, | |
8870 | replay to get the right keymap. */ | |
f4e05d97 GM |
8871 | if (INTEGERP (key) |
8872 | && XINT (key) == quit_char | |
8873 | && current_buffer != starting_buffer) | |
3b9189f8 | 8874 | { |
7d18f9ae RS |
8875 | GROW_RAW_KEYBUF; |
8876 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
8877 | keybuf[t++] = key; |
8878 | mock_input = t; | |
8879 | Vquit_flag = Qnil; | |
24a40fbb GM |
8880 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8881 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
8882 | goto replay_sequence; |
8883 | } | |
3cb81011 | 8884 | |
284f4730 | 8885 | Vquit_flag = Qnil; |
7d18f9ae RS |
8886 | |
8887 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 8888 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
8889 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
8890 | { | |
8891 | /* If we're at the beginning of a key sequence, and the caller | |
8892 | says it's okay, go ahead and return this event. If we're | |
8893 | in the midst of a key sequence, delay it until the end. */ | |
8894 | if (t > 0 || !can_return_switch_frame) | |
8895 | { | |
8896 | delayed_switch_frame = key; | |
8897 | goto replay_key; | |
8898 | } | |
8899 | } | |
8900 | ||
8901 | GROW_RAW_KEYBUF; | |
8902 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 8903 | } |
284f4730 | 8904 | |
df0f2ba1 | 8905 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
8906 | in their CHAR-ADDRESS field. For example, a click on |
8907 | the mode line is prefixed by the symbol `mode-line'. | |
8908 | ||
8909 | Furthermore, key sequences beginning with mouse clicks | |
8910 | are read using the keymaps of the buffer clicked on, not | |
8911 | the current buffer. So we may have to switch the buffer | |
8912 | here. | |
8913 | ||
8914 | When we turn one event into two events, we must make sure | |
8915 | that neither of the two looks like the original--so that, | |
8916 | if we replay the events, they won't be expanded again. | |
8917 | If not for this, such reexpansion could happen either here | |
8918 | or when user programs play with this-command-keys. */ | |
8919 | if (EVENT_HAS_PARAMETERS (key)) | |
8920 | { | |
9b8eb840 | 8921 | Lisp_Object kind; |
45de137a | 8922 | Lisp_Object string; |
cca310da | 8923 | |
9b8eb840 | 8924 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 8925 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 8926 | { |
9b8eb840 | 8927 | Lisp_Object window, posn; |
f4255cd1 | 8928 | |
9b8eb840 | 8929 | window = POSN_WINDOW (EVENT_START (key)); |
eee5863b | 8930 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 8931 | |
2cf066c3 GM |
8932 | if (CONSP (posn) |
8933 | || (!NILP (fake_prefixed_keys) | |
8934 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 8935 | { |
2cf066c3 GM |
8936 | /* We're looking a second time at an event for which |
8937 | we generated a fake prefix key. Set | |
7e85b935 RS |
8938 | last_real_key_start appropriately. */ |
8939 | if (t > 0) | |
8940 | last_real_key_start = t - 1; | |
cd21b839 | 8941 | } |
7e85b935 RS |
8942 | |
8943 | /* Key sequences beginning with mouse clicks are | |
8944 | read using the keymaps in the buffer clicked on, | |
8945 | not the current buffer. If we're at the | |
8946 | beginning of a key sequence, switch buffers. */ | |
8947 | if (last_real_key_start == 0 | |
8c18cbfb KH |
8948 | && WINDOWP (window) |
8949 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 8950 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 8951 | { |
7d18f9ae | 8952 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
8953 | keybuf[t] = key; |
8954 | mock_input = t + 1; | |
8955 | ||
8956 | /* Arrange to go back to the original buffer once we're | |
8957 | done reading the key sequence. Note that we can't | |
8958 | use save_excursion_{save,restore} here, because they | |
8959 | save point as well as the current buffer; we don't | |
8960 | want to save point, because redisplay may change it, | |
8961 | to accommodate a Fset_window_start or something. We | |
8962 | don't want to do this at the top of the function, | |
8963 | because we may get input from a subprocess which | |
8964 | wants to change the selected window and stuff (say, | |
8965 | emacsclient). */ | |
8966 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
8967 | ||
788f89eb | 8968 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 8969 | Fkill_emacs (Qnil); |
24a40fbb | 8970 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 8971 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
8972 | Qlocal_map); |
8973 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 8974 | goto replay_sequence; |
0a7f1fc0 | 8975 | } |
c60ee5e7 | 8976 | |
e0dff5f6 RS |
8977 | /* For a mouse click, get the local text-property keymap |
8978 | of the place clicked on, rather than point. */ | |
7ee32cda | 8979 | if (last_real_key_start == 0 |
7539e11f | 8980 | && CONSP (XCDR (key)) |
e0dff5f6 | 8981 | && ! localized_local_map) |
5ec75a55 | 8982 | { |
e0dff5f6 RS |
8983 | Lisp_Object map_here, start, pos; |
8984 | ||
8985 | localized_local_map = 1; | |
8986 | start = EVENT_START (key); | |
c60ee5e7 | 8987 | |
eee5863b | 8988 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
8989 | { |
8990 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
8991 | if (INTEGERP (pos) |
8992 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 8993 | { |
30690496 | 8994 | map_here = get_local_map (XINT (pos), |
24a40fbb | 8995 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
8996 | if (!EQ (map_here, orig_local_map)) |
8997 | { | |
8998 | orig_local_map = map_here; | |
8999 | keybuf[t] = key; | |
9000 | mock_input = t + 1; | |
5ec75a55 | 9001 | |
30690496 DL |
9002 | goto replay_sequence; |
9003 | } | |
9004 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 9005 | current_buffer, Qkeymap); |
30690496 DL |
9006 | if (!EQ (map_here, orig_keymap)) |
9007 | { | |
9008 | orig_keymap = map_here; | |
9009 | keybuf[t] = key; | |
9010 | mock_input = t + 1; | |
9011 | ||
e0dff5f6 RS |
9012 | goto replay_sequence; |
9013 | } | |
9014 | } | |
9015 | } | |
9016 | } | |
9017 | ||
9018 | /* Expand mode-line and scroll-bar events into two events: | |
9019 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9020 | if (SYMBOLP (posn) |
9021 | && (NILP (fake_prefixed_keys) | |
9022 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9023 | { |
7e85b935 | 9024 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9025 | error ("Key sequence too long"); |
c60ee5e7 | 9026 | |
2dc00208 GM |
9027 | keybuf[t] = posn; |
9028 | keybuf[t + 1] = key; | |
9029 | mock_input = t + 2; | |
9030 | ||
9031 | /* Record that a fake prefix key has been generated | |
9032 | for KEY. Don't modify the event; this would | |
9033 | prevent proper action when the event is pushed | |
c7f4f573 | 9034 | back into unread-command-events. */ |
2dc00208 | 9035 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9036 | |
9037 | /* If on a mode line string with a local keymap, | |
9038 | reconsider the key sequence with that keymap. */ | |
45de137a KS |
9039 | if (string = POSN_STRING (EVENT_START (key)), |
9040 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9041 | { |
45de137a | 9042 | Lisp_Object pos, map, map2; |
7ee32cda | 9043 | |
7ee32cda GM |
9044 | pos = XCDR (string); |
9045 | string = XCAR (string); | |
52e386c2 | 9046 | if (XINT (pos) >= 0 |
d5db4077 | 9047 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9048 | { |
9049 | map = Fget_text_property (pos, Qlocal_map, string); | |
9050 | if (!NILP (map)) | |
9051 | orig_local_map = map; | |
9052 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9053 | if (!NILP (map2)) | |
9054 | orig_keymap = map2; | |
9055 | if (!NILP (map) || !NILP (map2)) | |
9056 | goto replay_sequence; | |
9057 | } | |
7ee32cda GM |
9058 | } |
9059 | ||
7e85b935 | 9060 | goto replay_key; |
5ec75a55 | 9061 | } |
45de137a KS |
9062 | else if (NILP (from_string) |
9063 | && (string = POSN_STRING (EVENT_START (key)), | |
9064 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9065 | { |
9066 | /* For a click on a string, i.e. overlay string or a | |
9067 | string displayed via the `display' property, | |
9068 | consider `local-map' and `keymap' properties of | |
9069 | that string. */ | |
45de137a | 9070 | Lisp_Object pos, map, map2; |
db14cfc5 | 9071 | |
db14cfc5 GM |
9072 | pos = XCDR (string); |
9073 | string = XCAR (string); | |
9074 | if (XINT (pos) >= 0 | |
d5db4077 | 9075 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9076 | { |
9077 | map = Fget_text_property (pos, Qlocal_map, string); | |
9078 | if (!NILP (map)) | |
9079 | orig_local_map = map; | |
9080 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9081 | if (!NILP (map2)) | |
9082 | orig_keymap = map2; | |
9083 | ||
9084 | if (!NILP (map) || !NILP (map2)) | |
9085 | { | |
9086 | from_string = string; | |
9087 | goto replay_sequence; | |
9088 | } | |
9089 | } | |
9090 | } | |
0a7f1fc0 | 9091 | } |
7539e11f | 9092 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9093 | && CONSP (EVENT_START (key)) |
7539e11f | 9094 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9095 | { |
9b8eb840 | 9096 | Lisp_Object posn; |
7e85b935 | 9097 | |
eee5863b | 9098 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9099 | /* Handle menu-bar events: |
9100 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9101 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9102 | { |
9103 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9104 | error ("Key sequence too long"); |
7e85b935 RS |
9105 | keybuf[t] = posn; |
9106 | keybuf[t+1] = key; | |
9107 | ||
9108 | /* Zap the position in key, so we know that we've | |
9109 | expanded it, and don't try to do so again. */ | |
eee5863b KS |
9110 | POSN_SET_POSN (EVENT_START (key), |
9111 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9112 | |
9113 | mock_input = t + 2; | |
9114 | goto replay_sequence; | |
9115 | } | |
8c18cbfb | 9116 | else if (CONSP (posn)) |
7e85b935 RS |
9117 | { |
9118 | /* We're looking at the second event of a | |
9119 | sequence which we expanded before. Set | |
9120 | last_real_key_start appropriately. */ | |
9121 | if (last_real_key_start == t && t > 0) | |
9122 | last_real_key_start = t - 1; | |
9123 | } | |
a6d53864 | 9124 | } |
284f4730 | 9125 | } |
f4255cd1 JB |
9126 | |
9127 | /* We have finally decided that KEY is something we might want | |
9128 | to look up. */ | |
284f4730 JB |
9129 | first_binding = (follow_key (key, |
9130 | nmaps - first_binding, | |
253598e4 | 9131 | submaps + first_binding, |
284f4730 | 9132 | defs + first_binding, |
4e50f26a | 9133 | submaps + first_binding) |
284f4730 | 9134 | + first_binding); |
0a7f1fc0 | 9135 | |
f4255cd1 | 9136 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9137 | if (first_binding < nmaps) |
9138 | /* This is needed for the following scenario: | |
9139 | event 0: a down-event that gets dropped by calling replay_key. | |
9140 | event 1: some normal prefix like C-h. | |
a7f26f28 SM |
9141 | After event 0, first_unbound is 0, after event 1 fkey.start |
9142 | and keytran.start are both 1, so when we see that C-h is bound, | |
65e0fbbf SM |
9143 | we need to update first_unbound. */ |
9144 | first_unbound = max (t + 1, first_unbound); | |
9145 | else | |
0a7f1fc0 | 9146 | { |
9b8eb840 | 9147 | Lisp_Object head; |
c60ee5e7 | 9148 | |
a7f26f28 | 9149 | /* Remember the position to put an upper bound on fkey.start. */ |
7189cad8 | 9150 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9151 | |
9b8eb840 | 9152 | head = EVENT_HEAD (key); |
24736fbc | 9153 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9154 | { |
9155 | read_key_sequence_cmd = Vprefix_help_command; | |
9156 | keybuf[t++] = key; | |
9157 | last_nonmenu_event = key; | |
bc536d84 RS |
9158 | /* The Microsoft C compiler can't handle the goto that |
9159 | would go here. */ | |
309b0fc8 | 9160 | dummyflag = 1; |
0d882d52 | 9161 | break; |
7e85b935 RS |
9162 | } |
9163 | ||
8c18cbfb | 9164 | if (SYMBOLP (head)) |
0a7f1fc0 | 9165 | { |
9b8eb840 KH |
9166 | Lisp_Object breakdown; |
9167 | int modifiers; | |
0a7f1fc0 | 9168 | |
9b8eb840 | 9169 | breakdown = parse_modifiers (head); |
7539e11f | 9170 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9171 | /* Attempt to reduce an unbound mouse event to a simpler |
9172 | event that is bound: | |
9173 | Drags reduce to clicks. | |
9174 | Double-clicks reduce to clicks. | |
9175 | Triple-clicks reduce to double-clicks, then to clicks. | |
9176 | Down-clicks are eliminated. | |
9177 | Double-downs reduce to downs, then are eliminated. | |
9178 | Triple-downs reduce to double-downs, then to downs, | |
9179 | then are eliminated. */ | |
9180 | if (modifiers & (down_modifier | drag_modifier | |
9181 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9182 | { |
559f9d04 RS |
9183 | while (modifiers & (down_modifier | drag_modifier |
9184 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9185 | { |
9186 | Lisp_Object new_head, new_click; | |
9187 | if (modifiers & triple_modifier) | |
9188 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9189 | else if (modifiers & double_modifier) |
9190 | modifiers &= ~double_modifier; | |
9191 | else if (modifiers & drag_modifier) | |
9192 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9193 | else |
9194 | { | |
9195 | /* Dispose of this `down' event by simply jumping | |
9196 | back to replay_key, to get another event. | |
9197 | ||
9198 | Note that if this event came from mock input, | |
9199 | then just jumping back to replay_key will just | |
9200 | hand it to us again. So we have to wipe out any | |
9201 | mock input. | |
9202 | ||
9203 | We could delete keybuf[t] and shift everything | |
9204 | after that to the left by one spot, but we'd also | |
9205 | have to fix up any variable that points into | |
9206 | keybuf, and shifting isn't really necessary | |
9207 | anyway. | |
9208 | ||
9209 | Adding prefixes for non-textual mouse clicks | |
9210 | creates two characters of mock input, and both | |
9211 | must be thrown away. If we're only looking at | |
9212 | the prefix now, we can just jump back to | |
9213 | replay_key. On the other hand, if we've already | |
9214 | processed the prefix, and now the actual click | |
9215 | itself is giving us trouble, then we've lost the | |
9216 | state of the keymaps we want to backtrack to, and | |
9217 | we need to replay the whole sequence to rebuild | |
9218 | it. | |
9219 | ||
9220 | Beyond that, only function key expansion could | |
9221 | create more than two keys, but that should never | |
9222 | generate mouse events, so it's okay to zero | |
9223 | mock_input in that case too. | |
9224 | ||
65e0fbbf SM |
9225 | FIXME: The above paragraph seems just plain |
9226 | wrong, if you consider things like | |
9227 | xterm-mouse-mode. -stef | |
9228 | ||
559f9d04 | 9229 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9230 | |
9231 | /* If mock_input > t + 1, the above simplification | |
9232 | will actually end up dropping keys on the floor. | |
9233 | This is probably OK for now, but even | |
9234 | if mock_input <= t + 1, we need to adjust fkey | |
9235 | and keytran. | |
9236 | Typical case [header-line down-mouse-N]: | |
9237 | mock_input = 2, t = 1, fkey.end = 1, | |
9238 | last_real_key_start = 0. */ | |
9239 | if (fkey.end > last_real_key_start) | |
9240 | { | |
9241 | fkey.end = fkey.start | |
9242 | = min (last_real_key_start, fkey.start); | |
9243 | fkey.map = fkey.parent; | |
9244 | if (keytran.end > last_real_key_start) | |
9245 | { | |
9246 | keytran.end = keytran.start | |
9247 | = min (last_real_key_start, keytran.start); | |
9248 | keytran.map = keytran.parent; | |
9249 | } | |
9250 | } | |
559f9d04 RS |
9251 | if (t == last_real_key_start) |
9252 | { | |
9253 | mock_input = 0; | |
9254 | goto replay_key; | |
9255 | } | |
9256 | else | |
9257 | { | |
9258 | mock_input = last_real_key_start; | |
9259 | goto replay_sequence; | |
9260 | } | |
9261 | } | |
9262 | ||
27203ead | 9263 | new_head |
7539e11f | 9264 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9265 | new_click |
9266 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9267 | |
9268 | /* Look for a binding for this new key. follow_key | |
9269 | promises that it didn't munge submaps the | |
9270 | last time we called it, since key was unbound. */ | |
27203ead RS |
9271 | first_binding |
9272 | = (follow_key (new_click, | |
9273 | nmaps - local_first_binding, | |
9274 | submaps + local_first_binding, | |
9275 | defs + local_first_binding, | |
4e50f26a | 9276 | submaps + local_first_binding) |
27203ead | 9277 | + local_first_binding); |
fbcd35bd JB |
9278 | |
9279 | /* If that click is bound, go for it. */ | |
9280 | if (first_binding < nmaps) | |
9281 | { | |
9282 | key = new_click; | |
9283 | break; | |
9284 | } | |
9285 | /* Otherwise, we'll leave key set to the drag event. */ | |
9286 | } | |
0a7f1fc0 JB |
9287 | } |
9288 | } | |
9289 | } | |
9290 | ||
284f4730 | 9291 | keybuf[t++] = key; |
7d6de002 RS |
9292 | /* Normally, last_nonmenu_event gets the previous key we read. |
9293 | But when a mouse popup menu is being used, | |
9294 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9295 | event that preceded the first level of menu. */ | |
9296 | if (!used_mouse_menu) | |
9297 | last_nonmenu_event = key; | |
284f4730 | 9298 | |
6321824f RS |
9299 | /* Record what part of this_command_keys is the current key sequence. */ |
9300 | this_single_command_key_start = this_command_key_count - t; | |
9301 | ||
65e0fbbf SM |
9302 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
9303 | /* There is a binding and it's not a prefix. | |
9304 | There is thus no function-key in this sequence. | |
9305 | Moving fkey.start is important in this case to allow keytran.start | |
9306 | to go over the sequence before we return (since we keep the | |
9307 | invariant that keytran.end <= fkey.start). */ | |
9308 | { | |
a7f26f28 | 9309 | if (fkey.start < t) |
24d80a06 | 9310 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9311 | } |
9312 | else | |
9313 | /* If the sequence is unbound, see if we can hang a function key | |
9314 | off the end of it. */ | |
fe5b94c5 SM |
9315 | /* Continue scan from fkey.end until we find a bound suffix. */ |
9316 | while (fkey.end < t) | |
a612e298 | 9317 | { |
fe5b94c5 SM |
9318 | struct gcpro gcpro1, gcpro2, gcpro3; |
9319 | int done, diff; | |
9320 | ||
9321 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); | |
9322 | done = keyremap_step (keybuf, bufsize, &fkey, | |
9323 | max (t, mock_input), | |
9324 | /* If there's a binding (i.e. | |
9325 | first_binding >= nmaps) we don't want | |
9326 | to apply this function-key-mapping. */ | |
9327 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 9328 | &diff, prompt); |
fe5b94c5 SM |
9329 | UNGCPRO; |
9330 | if (done) | |
a612e298 | 9331 | { |
fe5b94c5 | 9332 | mock_input = diff + max (t, mock_input); |
a612e298 RS |
9333 | goto replay_sequence; |
9334 | } | |
fe5b94c5 | 9335 | } |
a612e298 | 9336 | |
fe5b94c5 SM |
9337 | /* Look for this sequence in key-translation-map. |
9338 | Scan from keytran.end until we find a bound suffix. */ | |
9339 | while (keytran.end < fkey.start) | |
9340 | { | |
9341 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9342 | int done, diff; | |
a612e298 | 9343 | |
fe5b94c5 SM |
9344 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
9345 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), | |
24d80a06 | 9346 | 1, &diff, prompt); |
fe5b94c5 SM |
9347 | UNGCPRO; |
9348 | if (done) | |
9349 | { | |
9350 | mock_input = diff + max (t, mock_input); | |
9351 | /* Adjust the function-key-map counters. */ | |
9352 | fkey.end += diff; | |
9353 | fkey.start += diff; | |
2320865d | 9354 | |
fe5b94c5 SM |
9355 | goto replay_sequence; |
9356 | } | |
9357 | } | |
4e50f26a RS |
9358 | |
9359 | /* If KEY is not defined in any of the keymaps, | |
9360 | and cannot be part of a function key or translation, | |
9361 | and is an upper case letter | |
9362 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9363 | if (first_binding >= nmaps |
a7f26f28 | 9364 | && fkey.start >= t && keytran.start >= t |
8c18cbfb | 9365 | && INTEGERP (key) |
4e50f26a | 9366 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9367 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9368 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9369 | || (XINT (key) & shift_modifier))) | |
9370 | { | |
569871d2 | 9371 | Lisp_Object new_key; |
569871d2 | 9372 | |
309b0fc8 RS |
9373 | original_uppercase = key; |
9374 | original_uppercase_position = t - 1; | |
9375 | ||
831f35a2 | 9376 | if (XINT (key) & shift_modifier) |
569871d2 | 9377 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9378 | else |
569871d2 RS |
9379 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9380 | | (XINT (key) & ~0x3ffff))); | |
9381 | ||
3fe8e9a2 RS |
9382 | /* We have to do this unconditionally, regardless of whether |
9383 | the lower-case char is defined in the keymaps, because they | |
9384 | might get translated through function-key-map. */ | |
9385 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9386 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9387 | |
9388 | goto replay_sequence; | |
4e50f26a | 9389 | } |
ef8fd672 RS |
9390 | /* If KEY is not defined in any of the keymaps, |
9391 | and cannot be part of a function key or translation, | |
9392 | and is a shifted function key, | |
9393 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9394 | if (first_binding >= nmaps |
a7f26f28 | 9395 | && fkey.start >= t && keytran.start >= t |
ef8fd672 RS |
9396 | && SYMBOLP (key)) |
9397 | { | |
9398 | Lisp_Object breakdown; | |
9399 | int modifiers; | |
9400 | ||
9401 | breakdown = parse_modifiers (key); | |
7539e11f | 9402 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9403 | if (modifiers & shift_modifier) |
9404 | { | |
569871d2 | 9405 | Lisp_Object new_key; |
3fe8e9a2 RS |
9406 | |
9407 | original_uppercase = key; | |
9408 | original_uppercase_position = t - 1; | |
ef8fd672 | 9409 | |
569871d2 RS |
9410 | modifiers &= ~shift_modifier; |
9411 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9412 | XCAR (breakdown)); |
569871d2 | 9413 | |
3fe8e9a2 | 9414 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9415 | mock_input = max (t, mock_input); |
f1871a7d RS |
9416 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; |
9417 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
3fe8e9a2 RS |
9418 | |
9419 | goto replay_sequence; | |
ef8fd672 RS |
9420 | } |
9421 | } | |
284f4730 JB |
9422 | } |
9423 | ||
309b0fc8 | 9424 | if (!dummyflag) |
bc536d84 RS |
9425 | read_key_sequence_cmd = (first_binding < nmaps |
9426 | ? defs[first_binding] | |
9427 | : Qnil); | |
284f4730 | 9428 | |
cd21b839 | 9429 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9430 | unbind_to (count, Qnil); |
07f76a14 | 9431 | |
3fe8e9a2 RS |
9432 | /* Don't downcase the last character if the caller says don't. |
9433 | Don't downcase it if the result is undefined, either. */ | |
9434 | if ((dont_downcase_last || first_binding >= nmaps) | |
9435 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9436 | keybuf[t - 1] = original_uppercase; |
9437 | ||
07f76a14 JB |
9438 | /* Occasionally we fabricate events, perhaps by expanding something |
9439 | according to function-key-map, or by adding a prefix symbol to a | |
9440 | mouse click in the scroll bar or modeline. In this cases, return | |
9441 | the entire generated key sequence, even if we hit an unbound | |
9442 | prefix or a definition before the end. This means that you will | |
9443 | be able to push back the event properly, and also means that | |
9444 | read-key-sequence will always return a logical unit. | |
9445 | ||
9446 | Better ideas? */ | |
cca310da JB |
9447 | for (; t < mock_input; t++) |
9448 | { | |
f2647d04 DL |
9449 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9450 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9451 | echo_char (keybuf[t]); |
cca310da JB |
9452 | add_command_key (keybuf[t]); |
9453 | } | |
07f76a14 | 9454 | |
c60ee5e7 | 9455 | |
7d18f9ae | 9456 | |
2dc00208 | 9457 | UNGCPRO; |
284f4730 JB |
9458 | return t; |
9459 | } | |
9460 | ||
d5eecefb | 9461 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9462 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9463 | The sequence is sufficient to specify a non-prefix command in the | |
9464 | current local and global maps. | |
9465 | ||
9466 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9467 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9468 | as a continuation of the previous key. | |
9469 | ||
9470 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9471 | convert the last event to lower case. (Normally any upper case event | |
9472 | is converted to lower case if the original event is undefined and the lower | |
9473 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9474 | a key sequence to be defined. | |
9475 | ||
9476 | A C-g typed while in this function is treated like any other character, | |
9477 | and `quit-flag' is not set. | |
9478 | ||
9479 | If the key sequence starts with a mouse click, then the sequence is read | |
9480 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9481 | of the selected window as normal. | |
9482 | ||
9483 | `read-key-sequence' drops unbound button-down events, since you normally | |
9484 | only care about the click or drag events which follow them. If a drag | |
9485 | or multi-click event is unbound, but the corresponding click event would | |
9486 | be bound, `read-key-sequence' turns the event into a click event at the | |
9487 | drag's starting position. This means that you don't have to distinguish | |
9488 | between click and drag, double, or triple events unless you want to. | |
9489 | ||
9490 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9491 | lines separating windows, and scroll bars with imaginary keys | |
9492 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9493 | ||
9494 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9495 | function will process a switch-frame event if the user switches frames | |
9496 | before typing anything. If the user switches frames in the middle of a | |
9497 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9498 | is nil, then the event will be put off until after the current key sequence. | |
9499 | ||
9500 | `read-key-sequence' checks `function-key-map' for function key | |
9501 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9502 | `function-key-map' for more details. | |
9503 | ||
9504 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9505 | that this key sequence is being read by something that will | |
9506 | read commands one after another. It should be nil if the caller | |
9507 | will read just one key sequence. */) | |
d5eecefb RS |
9508 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9509 | command_loop) | |
309b0fc8 | 9510 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9511 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9512 | { |
9513 | Lisp_Object keybuf[30]; | |
9514 | register int i; | |
03cee6ae | 9515 | struct gcpro gcpro1; |
aed13378 | 9516 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9517 | |
9518 | if (!NILP (prompt)) | |
b7826503 | 9519 | CHECK_STRING (prompt); |
284f4730 JB |
9520 | QUIT; |
9521 | ||
d5eecefb RS |
9522 | specbind (Qinput_method_exit_on_first_char, |
9523 | (NILP (command_loop) ? Qt : Qnil)); | |
9524 | specbind (Qinput_method_use_echo_area, | |
9525 | (NILP (command_loop) ? Qt : Qnil)); | |
9526 | ||
284f4730 JB |
9527 | bzero (keybuf, sizeof keybuf); |
9528 | GCPRO1 (keybuf[0]); | |
9529 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9530 | ||
daa37602 | 9531 | if (NILP (continue_echo)) |
6321824f RS |
9532 | { |
9533 | this_command_key_count = 0; | |
63020c46 | 9534 | this_command_key_count_reset = 0; |
6321824f RS |
9535 | this_single_command_key_start = 0; |
9536 | } | |
c0a58692 | 9537 | |
d0c48478 | 9538 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9539 | if (display_hourglass_p) |
9540 | cancel_hourglass (); | |
d0c48478 GM |
9541 | #endif |
9542 | ||
309b0fc8 | 9543 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9544 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9545 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9546 | |
ae18aa3b | 9547 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9548 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9549 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9550 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9551 | if (display_hourglass_p) |
9552 | start_hourglass (); | |
ae18aa3b | 9553 | #endif |
d0c48478 GM |
9554 | #endif |
9555 | ||
dcc408a0 RS |
9556 | if (i == -1) |
9557 | { | |
9558 | Vquit_flag = Qt; | |
9559 | QUIT; | |
9560 | } | |
284f4730 | 9561 | UNGCPRO; |
d5eecefb | 9562 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9563 | } |
e39da3d7 RS |
9564 | |
9565 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9566 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9567 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9568 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9569 | command_loop) | |
e39da3d7 | 9570 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9571 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9572 | { |
9573 | Lisp_Object keybuf[30]; | |
9574 | register int i; | |
03cee6ae | 9575 | struct gcpro gcpro1; |
aed13378 | 9576 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9577 | |
9578 | if (!NILP (prompt)) | |
b7826503 | 9579 | CHECK_STRING (prompt); |
e39da3d7 RS |
9580 | QUIT; |
9581 | ||
d5eecefb RS |
9582 | specbind (Qinput_method_exit_on_first_char, |
9583 | (NILP (command_loop) ? Qt : Qnil)); | |
9584 | specbind (Qinput_method_use_echo_area, | |
9585 | (NILP (command_loop) ? Qt : Qnil)); | |
9586 | ||
e39da3d7 RS |
9587 | bzero (keybuf, sizeof keybuf); |
9588 | GCPRO1 (keybuf[0]); | |
9589 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9590 | ||
9591 | if (NILP (continue_echo)) | |
9592 | { | |
9593 | this_command_key_count = 0; | |
63020c46 | 9594 | this_command_key_count_reset = 0; |
e39da3d7 RS |
9595 | this_single_command_key_start = 0; |
9596 | } | |
9597 | ||
d0c48478 | 9598 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9599 | if (display_hourglass_p) |
9600 | cancel_hourglass (); | |
d0c48478 GM |
9601 | #endif |
9602 | ||
e39da3d7 RS |
9603 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9604 | prompt, ! NILP (dont_downcase_last), | |
9605 | ! NILP (can_return_switch_frame), 0); | |
9606 | ||
d0c48478 | 9607 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9608 | if (display_hourglass_p) |
9609 | start_hourglass (); | |
d0c48478 GM |
9610 | #endif |
9611 | ||
e39da3d7 RS |
9612 | if (i == -1) |
9613 | { | |
9614 | Vquit_flag = Qt; | |
9615 | QUIT; | |
9616 | } | |
9617 | UNGCPRO; | |
d5eecefb | 9618 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9619 | } |
284f4730 | 9620 | \f |
158f7532 | 9621 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9622 | doc: /* Execute CMD as an editor command. |
9623 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9624 | Optional second arg RECORD-FLAG non-nil | |
9625 | means unconditionally put this command in `command-history'. | |
9626 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9627 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9628 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9629 | The argument SPECIAL, if non-nil, means that this command is executing | |
9630 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9631 | (cmd, record_flag, keys, special) |
9632 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9633 | { |
9634 | register Lisp_Object final; | |
9635 | register Lisp_Object tem; | |
9636 | Lisp_Object prefixarg; | |
9637 | struct backtrace backtrace; | |
9638 | extern int debug_on_next_call; | |
9639 | ||
284f4730 JB |
9640 | debug_on_next_call = 0; |
9641 | ||
158f7532 RS |
9642 | if (NILP (special)) |
9643 | { | |
9644 | prefixarg = current_kboard->Vprefix_arg; | |
9645 | Vcurrent_prefix_arg = prefixarg; | |
9646 | current_kboard->Vprefix_arg = Qnil; | |
9647 | } | |
9648 | else | |
9649 | prefixarg = Qnil; | |
9650 | ||
8c18cbfb | 9651 | if (SYMBOLP (cmd)) |
284f4730 JB |
9652 | { |
9653 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9654 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 9655 | { |
971e4c98 | 9656 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 9657 | if (!NILP (tem)) |
971e4c98 | 9658 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 9659 | } |
284f4730 JB |
9660 | } |
9661 | ||
01e26217 | 9662 | while (1) |
284f4730 | 9663 | { |
ffd56f97 | 9664 | final = Findirect_function (cmd); |
284f4730 JB |
9665 | |
9666 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9667 | { |
9668 | struct gcpro gcpro1, gcpro2; | |
9669 | ||
9670 | GCPRO2 (cmd, prefixarg); | |
9671 | do_autoload (final, cmd); | |
9672 | UNGCPRO; | |
9673 | } | |
284f4730 JB |
9674 | else |
9675 | break; | |
9676 | } | |
9677 | ||
8c18cbfb | 9678 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9679 | { |
9680 | /* If requested, place the macro in the command history. For | |
9681 | other sorts of commands, call-interactively takes care of | |
9682 | this. */ | |
e57d8fd8 | 9683 | if (!NILP (record_flag)) |
f4385381 RS |
9684 | { |
9685 | Vcommand_history | |
9686 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9687 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9688 | Vcommand_history); | |
9689 | ||
9690 | /* Don't keep command history around forever. */ | |
9691 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9692 | { | |
9693 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9694 | if (CONSP (tem)) | |
f3fbd155 | 9695 | XSETCDR (tem, Qnil); |
f4385381 RS |
9696 | } |
9697 | } | |
284f4730 | 9698 | |
caa06051 | 9699 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 9700 | } |
f4385381 | 9701 | |
8c18cbfb | 9702 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9703 | { |
9704 | backtrace.next = backtrace_list; | |
9705 | backtrace_list = &backtrace; | |
9706 | backtrace.function = &Qcall_interactively; | |
9707 | backtrace.args = &cmd; | |
9708 | backtrace.nargs = 1; | |
9709 | backtrace.evalargs = 0; | |
080e18b1 | 9710 | backtrace.debug_on_exit = 0; |
284f4730 | 9711 | |
e57d8fd8 | 9712 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9713 | |
9714 | backtrace_list = backtrace.next; | |
9715 | return tem; | |
9716 | } | |
9717 | return Qnil; | |
9718 | } | |
c970a760 GM |
9719 | |
9720 | ||
284f4730 | 9721 | \f |
284f4730 | 9722 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9723 | 1, 1, "P", |
9724 | doc: /* Read function name, then read its arguments and call it. */) | |
9725 | (prefixarg) | |
284f4730 JB |
9726 | Lisp_Object prefixarg; |
9727 | { | |
9728 | Lisp_Object function; | |
9729 | char buf[40]; | |
2e1a49ad SM |
9730 | int saved_last_point_position; |
9731 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9732 | Lisp_Object bindings, value; |
2e1a49ad | 9733 | struct gcpro gcpro1, gcpro2, gcpro3; |
a25e44b2 JD |
9734 | #ifdef HAVE_X_WINDOWS |
9735 | /* The call to Fcompleting_read wil start and cancel the hourglass, | |
9736 | but if the hourglass was already scheduled, this means that no | |
9737 | hourglass will be shown for the actual M-x command itself. | |
9738 | So we restart it if it is already scheduled. Note that checking | |
9739 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
9740 | just scheduled to be shown. */ | |
9741 | int hstarted = hourglass_started (); | |
9742 | #endif | |
284f4730 | 9743 | |
b0f2a7bf KH |
9744 | saved_keys = Fvector (this_command_key_count, |
9745 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9746 | saved_last_point_position_buffer = last_point_position_buffer; |
9747 | saved_last_point_position = last_point_position; | |
284f4730 | 9748 | buf[0] = 0; |
2e1a49ad | 9749 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9750 | |
9751 | if (EQ (prefixarg, Qminus)) | |
9752 | strcpy (buf, "- "); | |
7539e11f | 9753 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9754 | strcpy (buf, "C-u "); |
7539e11f | 9755 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
cea5d0d4 | 9756 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
8c18cbfb | 9757 | else if (INTEGERP (prefixarg)) |
cea5d0d4 | 9758 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
284f4730 JB |
9759 | |
9760 | /* This isn't strictly correct if execute-extended-command | |
9761 | is bound to anything else. Perhaps it should use | |
9762 | this_command_keys? */ | |
9763 | strcat (buf, "M-x "); | |
9764 | ||
9765 | /* Prompt with buf, and then read a string, completing from and | |
9766 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9767 | any initial input. Save the command read on the extended-command |
03b4122a | 9768 | history list. */ |
284f4730 JB |
9769 | function = Fcompleting_read (build_string (buf), |
9770 | Vobarray, Qcommandp, | |
4328577a KH |
9771 | Qt, Qnil, Qextended_command_history, Qnil, |
9772 | Qnil); | |
284f4730 | 9773 | |
a25e44b2 JD |
9774 | #ifdef HAVE_X_WINDOWS |
9775 | if (hstarted) start_hourglass (); | |
9776 | #endif | |
9777 | ||
d5db4077 | 9778 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9779 | error ("No command name given"); |
9780 | ||
1113d9db JB |
9781 | /* Set this_command_keys to the concatenation of saved_keys and |
9782 | function, followed by a RET. */ | |
284f4730 | 9783 | { |
b0f2a7bf | 9784 | Lisp_Object *keys; |
284f4730 | 9785 | int i; |
284f4730 | 9786 | |
1113d9db | 9787 | this_command_key_count = 0; |
63020c46 | 9788 | this_command_key_count_reset = 0; |
6321824f | 9789 | this_single_command_key_start = 0; |
1113d9db | 9790 | |
b0f2a7bf KH |
9791 | keys = XVECTOR (saved_keys)->contents; |
9792 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9793 | add_command_key (keys[i]); | |
1113d9db | 9794 | |
1b049b51 | 9795 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9796 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9797 | |
301738ed | 9798 | add_command_key (make_number ('\015')); |
284f4730 JB |
9799 | } |
9800 | ||
2e1a49ad SM |
9801 | last_point_position = saved_last_point_position; |
9802 | last_point_position_buffer = saved_last_point_position_buffer; | |
9803 | ||
284f4730 JB |
9804 | UNGCPRO; |
9805 | ||
0a7f1fc0 | 9806 | function = Fintern (function, Qnil); |
d8bcf58e | 9807 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9808 | Vthis_command = function; |
9809 | real_this_command = function; | |
284f4730 | 9810 | |
6526ab49 RS |
9811 | /* If enabled, show which key runs this command. */ |
9812 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 9813 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 9814 | && SYMBOLP (function)) |
5434fce6 | 9815 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9816 | Qt, Qnil, Qnil); |
5434fce6 RS |
9817 | else |
9818 | bindings = Qnil; | |
6526ab49 | 9819 | |
5434fce6 RS |
9820 | value = Qnil; |
9821 | GCPRO2 (bindings, value); | |
9822 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9823 | |
5434fce6 | 9824 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9825 | if (!NILP (bindings) |
ee112567 KH |
9826 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9827 | Qmouse_movement))) | |
5434fce6 RS |
9828 | { |
9829 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9830 | int delay_time; |
985f9f66 | 9831 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9832 | /* This command displayed something in the echo area; |
9833 | so wait a few seconds, then display our suggestion message. */ | |
9834 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9835 | ? XINT (Vsuggest_key_bindings) : 2); | |
9836 | else | |
9837 | /* This command left the echo area empty, | |
9838 | so display our message immediately. */ | |
9839 | delay_time = 0; | |
9840 | ||
9841 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9842 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9843 | { |
5434fce6 RS |
9844 | Lisp_Object binding; |
9845 | char *newmessage; | |
985f9f66 | 9846 | int message_p = push_message (); |
331379bf | 9847 | int count = SPECPDL_INDEX (); |
5434fce6 | 9848 | |
65efd7da | 9849 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 9850 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
9851 | |
9852 | newmessage | |
d5db4077 KR |
9853 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
9854 | + SBYTES (binding) | |
5434fce6 | 9855 | + 100); |
3ababa60 | 9856 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
9857 | SDATA (SYMBOL_NAME (function)), |
9858 | SDATA (binding)); | |
301738ed RS |
9859 | message2_nolog (newmessage, |
9860 | strlen (newmessage), | |
9861 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
9862 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
9863 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
9864 | Qnil, Qnil)) |
9865 | && message_p) | |
9866 | restore_message (); | |
9867 | ||
c970a760 | 9868 | unbind_to (count, Qnil); |
6526ab49 RS |
9869 | } |
9870 | } | |
9871 | ||
5434fce6 | 9872 | RETURN_UNGCPRO (value); |
284f4730 | 9873 | } |
6526ab49 | 9874 | |
284f4730 | 9875 | \f |
d9d4c147 | 9876 | /* Return nonzero if input events are pending. */ |
284f4730 | 9877 | |
dfcf069d | 9878 | int |
284f4730 JB |
9879 | detect_input_pending () |
9880 | { | |
9881 | if (!input_pending) | |
d9d4c147 KH |
9882 | get_input_pending (&input_pending, 0); |
9883 | ||
9884 | return input_pending; | |
9885 | } | |
9886 | ||
a2d5fca0 JD |
9887 | /* Return nonzero if input events other than mouse movements are |
9888 | pending. */ | |
9889 | ||
9890 | int | |
9891 | detect_input_pending_ignore_squeezables () | |
9892 | { | |
9893 | if (!input_pending) | |
9894 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
9895 | ||
9896 | return input_pending; | |
9897 | } | |
9898 | ||
b1878f45 | 9899 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 9900 | |
dfcf069d | 9901 | int |
87dd9b9b RS |
9902 | detect_input_pending_run_timers (do_display) |
9903 | int do_display; | |
d9d4c147 | 9904 | { |
87dd9b9b RS |
9905 | int old_timers_run = timers_run; |
9906 | ||
d9d4c147 | 9907 | if (!input_pending) |
a2d5fca0 | 9908 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 9909 | |
87dd9b9b | 9910 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 9911 | { |
3007ebfb | 9912 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
9913 | /* The following fixes a bug when using lazy-lock with |
9914 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
9915 | from an idle timer function. The symptom of the bug is that | |
9916 | the cursor sometimes doesn't become visible until the next X | |
9917 | event is processed. --gerd. */ | |
9918 | if (rif) | |
9919 | rif->flush_display (NULL); | |
9920 | } | |
87dd9b9b | 9921 | |
284f4730 JB |
9922 | return input_pending; |
9923 | } | |
9924 | ||
ffd56f97 JB |
9925 | /* This is called in some cases before a possible quit. |
9926 | It cases the next call to detect_input_pending to recompute input_pending. | |
9927 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
9928 | |
9929 | void | |
ffd56f97 JB |
9930 | clear_input_pending () |
9931 | { | |
9932 | input_pending = 0; | |
9933 | } | |
9934 | ||
b1878f45 | 9935 | /* Return nonzero if there are pending requeued events. |
d64b707c | 9936 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 9937 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
9938 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
9939 | to do in that case. It isn't trivial. */ | |
9940 | ||
dfcf069d | 9941 | int |
b1878f45 RS |
9942 | requeued_events_pending_p () |
9943 | { | |
9944 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
9945 | } | |
9946 | ||
9947 | ||
284f4730 | 9948 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
9949 | doc: /* Return t if command input is currently available with no wait. |
9950 | Actually, the value is nil only if we can be sure that no input is available; | |
9951 | if there is a doubt, the value is t. */) | |
4707d2d0 | 9952 | () |
284f4730 | 9953 | { |
24597608 | 9954 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
9955 | return (Qt); |
9956 | ||
a2d5fca0 JD |
9957 | get_input_pending (&input_pending, |
9958 | READABLE_EVENTS_DO_TIMERS_NOW | |
9959 | | READABLE_EVENTS_FILTER_EVENTS); | |
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; |
284f4730 JB |
10137 | input_pending = 0; |
10138 | ||
10139 | return Qnil; | |
10140 | } | |
10141 | \f | |
10142 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10143 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10144 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10145 | control, run a subshell instead. | |
10146 | ||
10147 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10148 | to be read as terminal input by Emacs's parent, after suspension. | |
10149 | ||
10150 | Before suspending, run the normal hook `suspend-hook'. | |
10151 | After resumption run the normal hook `suspend-resume-hook'. | |
10152 | ||
10153 | Some operating systems cannot stop the Emacs process and resume it later. | |
10154 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10155 | (stuffstring) | |
284f4730 JB |
10156 | Lisp_Object stuffstring; |
10157 | { | |
aed13378 | 10158 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10159 | int old_height, old_width; |
10160 | int width, height; | |
03cee6ae | 10161 | struct gcpro gcpro1; |
284f4730 JB |
10162 | |
10163 | if (!NILP (stuffstring)) | |
b7826503 | 10164 | CHECK_STRING (stuffstring); |
284f4730 | 10165 | |
1e95ed28 JB |
10166 | /* Run the functions in suspend-hook. */ |
10167 | if (!NILP (Vrun_hooks)) | |
10168 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10169 | |
b7d2ebbf | 10170 | GCPRO1 (stuffstring); |
ff11dfa1 | 10171 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
10172 | reset_sys_modes (); |
10173 | /* sys_suspend can get an error if it tries to fork a subshell | |
10174 | and the system resources aren't available for that. */ | |
91a0da02 | 10175 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 10176 | Qnil); |
284f4730 | 10177 | stuff_buffered_input (stuffstring); |
8026024c KH |
10178 | if (cannot_suspend) |
10179 | sys_subshell (); | |
10180 | else | |
10181 | sys_suspend (); | |
284f4730 JB |
10182 | unbind_to (count, Qnil); |
10183 | ||
10184 | /* Check if terminal/window size has changed. | |
10185 | Note that this is not useful when we are running directly | |
10186 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 10187 | get_frame_size (&width, &height); |
284f4730 | 10188 | if (width != old_width || height != old_height) |
788f89eb | 10189 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10190 | |
1e95ed28 | 10191 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10192 | if (!NILP (Vrun_hooks)) |
10193 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10194 | |
284f4730 JB |
10195 | UNGCPRO; |
10196 | return Qnil; | |
10197 | } | |
10198 | ||
10199 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10200 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10201 | |
07a59269 | 10202 | void |
284f4730 JB |
10203 | stuff_buffered_input (stuffstring) |
10204 | Lisp_Object stuffstring; | |
10205 | { | |
0c1c1b93 | 10206 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10207 | register unsigned char *p; |
612b78ef | 10208 | |
8c18cbfb | 10209 | if (STRINGP (stuffstring)) |
284f4730 JB |
10210 | { |
10211 | register int count; | |
10212 | ||
d5db4077 KR |
10213 | p = SDATA (stuffstring); |
10214 | count = SBYTES (stuffstring); | |
284f4730 JB |
10215 | while (count-- > 0) |
10216 | stuff_char (*p++); | |
10217 | stuff_char ('\n'); | |
10218 | } | |
c60ee5e7 | 10219 | |
284f4730 | 10220 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10221 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10222 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10223 | |
0c1c1b93 RS |
10224 | rms: we should stuff everything back into the kboard |
10225 | it came from. */ | |
beecf6a1 | 10226 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10227 | { |
c60ee5e7 | 10228 | |
beecf6a1 KH |
10229 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10230 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10231 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10232 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10233 | |
d92f48d3 | 10234 | clear_event (kbd_fetch_ptr); |
284f4730 | 10235 | } |
c60ee5e7 | 10236 | |
284f4730 | 10237 | input_pending = 0; |
0c1c1b93 | 10238 | #endif /* SIGTSTP */ |
284f4730 JB |
10239 | } |
10240 | \f | |
dfcf069d | 10241 | void |
ffd56f97 JB |
10242 | set_waiting_for_input (time_to_clear) |
10243 | EMACS_TIME *time_to_clear; | |
284f4730 | 10244 | { |
ffd56f97 | 10245 | input_available_clear_time = time_to_clear; |
284f4730 JB |
10246 | |
10247 | /* Tell interrupt_signal to throw back to read_char, */ | |
10248 | waiting_for_input = 1; | |
10249 | ||
10250 | /* If interrupt_signal was called before and buffered a C-g, | |
10251 | make it run again now, to avoid timing error. */ | |
10252 | if (!NILP (Vquit_flag)) | |
10253 | quit_throw_to_read_char (); | |
284f4730 JB |
10254 | } |
10255 | ||
07a59269 | 10256 | void |
284f4730 JB |
10257 | clear_waiting_for_input () |
10258 | { | |
10259 | /* Tell interrupt_signal not to throw back to read_char, */ | |
10260 | waiting_for_input = 0; | |
ffd56f97 | 10261 | input_available_clear_time = 0; |
284f4730 JB |
10262 | } |
10263 | ||
27fd22dc | 10264 | /* This routine is called at interrupt level in response to C-g. |
c60ee5e7 | 10265 | |
d4e68eea GM |
10266 | If interrupt_input, this is the handler for SIGINT. Otherwise, it |
10267 | is called from kbd_buffer_store_event, in handling SIGIO or | |
10268 | SIGTINT. | |
284f4730 | 10269 | |
d4e68eea GM |
10270 | If `waiting_for_input' is non zero, then unless `echoing' is |
10271 | nonzero, immediately throw back to read_char. | |
284f4730 | 10272 | |
d4e68eea GM |
10273 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes |
10274 | eval to throw, when it gets a chance. If quit-flag is already | |
10275 | non-nil, it stops the job right away. */ | |
284f4730 | 10276 | |
14e40288 | 10277 | static SIGTYPE |
91c049d4 RS |
10278 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10279 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
10280 | { |
10281 | char c; | |
10282 | /* Must preserve main program's value of errno. */ | |
10283 | int old_errno = errno; | |
788f89eb | 10284 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 10285 | |
5970a8cb | 10286 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
10287 | if (!read_socket_hook && NILP (Vwindow_system)) |
10288 | { | |
10289 | /* USG systems forget handlers when they are used; | |
10290 | must reestablish each time */ | |
10291 | signal (SIGINT, interrupt_signal); | |
10292 | signal (SIGQUIT, interrupt_signal); | |
10293 | } | |
284f4730 JB |
10294 | #endif /* USG */ |
10295 | ||
333f1b6f | 10296 | SIGNAL_THREAD_CHECK (signalnum); |
284f4730 JB |
10297 | cancel_echoing (); |
10298 | ||
31e4e97b | 10299 | if (!NILP (Vquit_flag) |
788f89eb | 10300 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 10301 | { |
31e4e97b EZ |
10302 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10303 | another SIGINT, it might be harmful due to non-reentrancy | |
10304 | in I/O functions. */ | |
10305 | sigblock (sigmask (SIGINT)); | |
10306 | ||
284f4730 JB |
10307 | fflush (stdout); |
10308 | reset_sys_modes (); | |
31e4e97b | 10309 | |
284f4730 JB |
10310 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10311 | /* | |
10312 | * On systems which can suspend the current process and return to the original | |
10313 | * shell, this command causes the user to end up back at the shell. | |
10314 | * The "Auto-save" and "Abort" questions are not asked until | |
10315 | * the user elects to return to emacs, at which point he can save the current | |
10316 | * job and either dump core or continue. | |
10317 | */ | |
10318 | sys_suspend (); | |
10319 | #else | |
10320 | #ifdef VMS | |
10321 | if (sys_suspend () == -1) | |
10322 | { | |
10323 | printf ("Not running as a subprocess;\n"); | |
10324 | printf ("you can continue or abort.\n"); | |
10325 | } | |
10326 | #else /* not VMS */ | |
10327 | /* Perhaps should really fork an inferior shell? | |
10328 | But that would not provide any way to get back | |
10329 | to the original shell, ever. */ | |
10330 | printf ("No support for stopping a process on this operating system;\n"); | |
10331 | printf ("you can continue or abort.\n"); | |
10332 | #endif /* not VMS */ | |
10333 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
10334 | #ifdef MSDOS |
10335 | /* We must remain inside the screen area when the internal terminal | |
10336 | is used. Note that [Enter] is not echoed by dos. */ | |
10337 | cursor_to (0, 0); | |
10338 | #endif | |
118d6ca9 RS |
10339 | /* It doesn't work to autosave while GC is in progress; |
10340 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10341 | if (!gc_in_progress) | |
9fd7d808 | 10342 | { |
118d6ca9 RS |
10343 | printf ("Auto-save? (y or n) "); |
10344 | fflush (stdout); | |
10345 | if (((c = getchar ()) & ~040) == 'Y') | |
10346 | { | |
10347 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10348 | #ifdef MSDOS |
118d6ca9 | 10349 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10350 | #else /* not MSDOS */ |
118d6ca9 | 10351 | printf ("Auto-save done\n"); |
80e4aa30 | 10352 | #endif /* not MSDOS */ |
118d6ca9 RS |
10353 | } |
10354 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10355 | } |
c60ee5e7 | 10356 | else |
118d6ca9 RS |
10357 | { |
10358 | /* During GC, it must be safe to reenable quitting again. */ | |
10359 | Vinhibit_quit = Qnil; | |
10360 | #ifdef MSDOS | |
10361 | printf ("\r\n"); | |
10362 | #endif /* not MSDOS */ | |
10363 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10364 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10365 | fflush (stdout); | |
10366 | } | |
10367 | ||
80e4aa30 RS |
10368 | #ifdef MSDOS |
10369 | printf ("\r\nAbort? (y or n) "); | |
10370 | #else /* not MSDOS */ | |
284f4730 JB |
10371 | #ifdef VMS |
10372 | printf ("Abort (and enter debugger)? (y or n) "); | |
10373 | #else /* not VMS */ | |
10374 | printf ("Abort (and dump core)? (y or n) "); | |
10375 | #endif /* not VMS */ | |
80e4aa30 | 10376 | #endif /* not MSDOS */ |
284f4730 JB |
10377 | fflush (stdout); |
10378 | if (((c = getchar ()) & ~040) == 'Y') | |
10379 | abort (); | |
10380 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10381 | #ifdef MSDOS |
10382 | printf ("\r\nContinuing...\r\n"); | |
10383 | #else /* not MSDOS */ | |
284f4730 | 10384 | printf ("Continuing...\n"); |
80e4aa30 | 10385 | #endif /* not MSDOS */ |
284f4730 JB |
10386 | fflush (stdout); |
10387 | init_sys_modes (); | |
31e4e97b | 10388 | sigfree (); |
284f4730 JB |
10389 | } |
10390 | else | |
10391 | { | |
10392 | /* If executing a function that wants to be interrupted out of | |
10393 | and the user has not deferred quitting by binding `inhibit-quit' | |
10394 | then quit right away. */ | |
10395 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10396 | { | |
e39da3d7 RS |
10397 | struct gl_state_s saved; |
10398 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10399 | ||
284f4730 JB |
10400 | immediate_quit = 0; |
10401 | sigfree (); | |
e39da3d7 RS |
10402 | saved = gl_state; |
10403 | GCPRO4 (saved.object, saved.global_code, | |
10404 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10405 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10406 | gl_state = saved; |
10407 | UNGCPRO; | |
284f4730 JB |
10408 | } |
10409 | else | |
10410 | /* Else request quit when it's safe */ | |
10411 | Vquit_flag = Qt; | |
10412 | } | |
10413 | ||
10414 | if (waiting_for_input && !echoing) | |
10415 | quit_throw_to_read_char (); | |
10416 | ||
10417 | errno = old_errno; | |
10418 | } | |
10419 | ||
10420 | /* Handle a C-g by making read_char return C-g. */ | |
10421 | ||
07a59269 | 10422 | void |
284f4730 JB |
10423 | quit_throw_to_read_char () |
10424 | { | |
284f4730 JB |
10425 | sigfree (); |
10426 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10427 | clear_waiting_for_input (); |
284f4730 JB |
10428 | input_pending = 0; |
10429 | ||
24597608 | 10430 | Vunread_command_events = Qnil; |
86e5706b | 10431 | unread_command_char = -1; |
284f4730 | 10432 | |
087feab3 RS |
10433 | #if 0 /* Currently, sit_for is called from read_char without turning |
10434 | off polling. And that can call set_waiting_for_input. | |
10435 | It seems to be harmless. */ | |
e6b01c14 JB |
10436 | #ifdef POLL_FOR_INPUT |
10437 | /* May be > 1 if in recursive minibuffer. */ | |
10438 | if (poll_suppress_count == 0) | |
10439 | abort (); | |
10440 | #endif | |
087feab3 | 10441 | #endif |
4c52b668 | 10442 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10443 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10444 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10445 | 0, 0); |
e6b01c14 | 10446 | |
284f4730 JB |
10447 | _longjmp (getcjmp, 1); |
10448 | } | |
10449 | \f | |
10450 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10451 | doc: /* Set mode of reading keyboard input. |
10452 | First arg INTERRUPT non-nil means use input interrupts; | |
10453 | nil means use CBREAK mode. | |
10454 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10455 | (no effect except in CBREAK mode). | |
10456 | Third arg META t means accept 8-bit input (for a Meta key). | |
10457 | META nil means ignore the top bit, on the assumption it is parity. | |
10458 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10459 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10460 | See also `current-input-mode'. */) | |
10461 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10462 | Lisp_Object interrupt, flow, meta, quit; |
10463 | { | |
10464 | if (!NILP (quit) | |
8c18cbfb | 10465 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10466 | error ("set-input-mode: QUIT must be an ASCII character"); |
10467 | ||
10468 | #ifdef POLL_FOR_INPUT | |
10469 | stop_polling (); | |
10470 | #endif | |
284f4730 | 10471 | |
07de30b9 | 10472 | #ifndef DOS_NT |
2ee250ec | 10473 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 10474 | reset_sys_modes (); |
2ee250ec RS |
10475 | #endif |
10476 | ||
284f4730 JB |
10477 | #ifdef SIGIO |
10478 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 10479 | if (read_socket_hook) |
9a0f60bb KH |
10480 | { |
10481 | /* When using X, don't give the user a real choice, | |
10482 | because we haven't implemented the mechanisms to support it. */ | |
10483 | #ifdef NO_SOCK_SIGIO | |
10484 | interrupt_input = 0; | |
10485 | #else /* not NO_SOCK_SIGIO */ | |
10486 | interrupt_input = 1; | |
284f4730 | 10487 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10488 | } |
10489 | else | |
284f4730 JB |
10490 | interrupt_input = !NILP (interrupt); |
10491 | #else /* not SIGIO */ | |
10492 | interrupt_input = 0; | |
10493 | #endif /* not SIGIO */ | |
9a0f60bb | 10494 | |
284f4730 JB |
10495 | /* Our VMS input only works by interrupts, as of now. */ |
10496 | #ifdef VMS | |
10497 | interrupt_input = 1; | |
10498 | #endif | |
9a0f60bb | 10499 | |
284f4730 | 10500 | flow_control = !NILP (flow); |
b04904fb RS |
10501 | if (NILP (meta)) |
10502 | meta_key = 0; | |
10503 | else if (EQ (meta, Qt)) | |
10504 | meta_key = 1; | |
10505 | else | |
10506 | meta_key = 2; | |
284f4730 JB |
10507 | if (!NILP (quit)) |
10508 | /* Don't let this value be out of range. */ | |
10509 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
10510 | ||
07de30b9 | 10511 | #ifndef DOS_NT |
284f4730 | 10512 | init_sys_modes (); |
2ee250ec | 10513 | #endif |
34f04431 RS |
10514 | |
10515 | #ifdef POLL_FOR_INPUT | |
10516 | poll_suppress_count = 1; | |
10517 | start_polling (); | |
10518 | #endif | |
284f4730 JB |
10519 | return Qnil; |
10520 | } | |
80645119 JB |
10521 | |
10522 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10523 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10524 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10525 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10526 | nil, Emacs is using CBREAK mode. | |
10527 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10528 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10529 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10530 | META nil means ignoring the top bit, on the assumption it is parity. | |
10531 | META is neither t nor nil if accepting 8-bit input and using | |
10532 | all 8 bits as the character code. | |
10533 | QUIT is the character Emacs currently uses to quit. | |
10534 | The elements of this list correspond to the arguments of | |
10535 | `set-input-mode'. */) | |
10536 | () | |
80645119 JB |
10537 | { |
10538 | Lisp_Object val[4]; | |
10539 | ||
10540 | val[0] = interrupt_input ? Qt : Qnil; | |
10541 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 10542 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 10543 | XSETFASTINT (val[3], quit_char); |
80645119 | 10544 | |
bf673a7a | 10545 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10546 | } |
10547 | ||
a25f766a | 10548 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
10549 | doc: /* Return position information for pixel coordinates X and Y. |
10550 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 10551 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
10552 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
10553 | edge of the window. | |
ec026e7a KS |
10554 | |
10555 | The return value is similar to a mouse click position: | |
10556 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
10557 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
10558 | The `posn-' functions access elements of such lists. */) | |
a25f766a KS |
10559 | (x, y, frame_or_window, whole) |
10560 | Lisp_Object x, y, frame_or_window, whole; | |
ec026e7a | 10561 | { |
f4a5a485 SM |
10562 | CHECK_NATNUM (x); |
10563 | CHECK_NATNUM (y); | |
10564 | ||
ec026e7a KS |
10565 | if (NILP (frame_or_window)) |
10566 | frame_or_window = selected_window; | |
10567 | ||
10568 | if (WINDOWP (frame_or_window)) | |
10569 | { | |
10570 | struct window *w; | |
10571 | ||
10572 | CHECK_LIVE_WINDOW (frame_or_window); | |
10573 | ||
10574 | w = XWINDOW (frame_or_window); | |
10575 | XSETINT (x, (WINDOW_TO_FRAME_PIXEL_X (w, XINT (x)) | |
a25f766a KS |
10576 | + (NILP (whole) |
10577 | ? window_box_left_offset (w, TEXT_AREA) | |
10578 | : - (WINDOW_LEFT_SCROLL_BAR_COLS (w) | |
10579 | * WINDOW_FRAME_COLUMN_WIDTH (w))))); | |
ec026e7a KS |
10580 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
10581 | frame_or_window = w->frame; | |
10582 | } | |
10583 | ||
10584 | CHECK_LIVE_FRAME (frame_or_window); | |
10585 | ||
10586 | return make_lispy_position (XFRAME (frame_or_window), &x, &y, 0); | |
10587 | } | |
10588 | ||
10589 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
10590 | doc: /* Return position information for buffer POS in WINDOW. | |
10591 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
10592 | ||
10593 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 10594 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
10595 | a mouse click at the upper left corner of the glyph corresponding |
10596 | to the given buffer position: | |
10597 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
10598 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 10599 | The `posn-' functions access elements of such lists. */) |
ec026e7a KS |
10600 | (pos, window) |
10601 | Lisp_Object pos, window; | |
10602 | { | |
10603 | Lisp_Object tem; | |
10604 | ||
10605 | tem = Fpos_visible_in_window_p (pos, window, Qt); | |
10606 | if (!NILP (tem)) | |
a25f766a | 10607 | tem = Fposn_at_x_y (XCAR (tem), XCAR (XCDR (tem)), window, Qnil); |
ec026e7a KS |
10608 | return tem; |
10609 | } | |
10610 | ||
284f4730 | 10611 | \f |
6c6083a9 | 10612 | /* |
c5fdd383 | 10613 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10614 | */ |
10615 | void | |
c5fdd383 KH |
10616 | init_kboard (kb) |
10617 | KBOARD *kb; | |
6c6083a9 | 10618 | { |
217258d5 | 10619 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10620 | kb->Vlast_command = Qnil; |
75045dcb | 10621 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 10622 | kb->Vprefix_arg = Qnil; |
75045dcb | 10623 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10624 | kb->kbd_queue = Qnil; |
10625 | kb->kbd_queue_has_data = 0; | |
10626 | kb->immediate_echo = 0; | |
678e9d18 | 10627 | kb->echo_string = Qnil; |
c5fdd383 KH |
10628 | kb->echo_after_prompt = -1; |
10629 | kb->kbd_macro_buffer = 0; | |
10630 | kb->kbd_macro_bufsize = 0; | |
10631 | kb->defining_kbd_macro = Qnil; | |
10632 | kb->Vlast_kbd_macro = Qnil; | |
10633 | kb->reference_count = 0; | |
7c97ffdc | 10634 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10635 | kb->system_key_syms = Qnil; |
9ba47203 | 10636 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10637 | } |
10638 | ||
10639 | /* | |
c5fdd383 | 10640 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10641 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10642 | * it a second time. |
10643 | */ | |
e50b8090 | 10644 | static void |
c5fdd383 KH |
10645 | wipe_kboard (kb) |
10646 | KBOARD *kb; | |
6c6083a9 | 10647 | { |
c5fdd383 KH |
10648 | if (kb->kbd_macro_buffer) |
10649 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10650 | } |
10651 | ||
e50b8090 | 10652 | #ifdef MULTI_KBOARD |
a122a38e GM |
10653 | |
10654 | /* Free KB and memory referenced from it. */ | |
10655 | ||
e50b8090 KH |
10656 | void |
10657 | delete_kboard (kb) | |
a122a38e | 10658 | KBOARD *kb; |
e50b8090 KH |
10659 | { |
10660 | KBOARD **kbp; | |
c60ee5e7 | 10661 | |
e50b8090 KH |
10662 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10663 | if (*kbp == NULL) | |
10664 | abort (); | |
10665 | *kbp = kb->next_kboard; | |
a122a38e GM |
10666 | |
10667 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10668 | if (kb == current_kboard |
10669 | && FRAMEP (selected_frame) | |
10670 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10671 | { |
18f534df | 10672 | current_kboard = XFRAME (selected_frame)->kboard; |
a122a38e GM |
10673 | if (current_kboard == kb) |
10674 | abort (); | |
10675 | } | |
c60ee5e7 | 10676 | |
e50b8090 KH |
10677 | wipe_kboard (kb); |
10678 | xfree (kb); | |
10679 | } | |
a122a38e GM |
10680 | |
10681 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10682 | |
dfcf069d | 10683 | void |
284f4730 JB |
10684 | init_keyboard () |
10685 | { | |
284f4730 JB |
10686 | /* This is correct before outermost invocation of the editor loop */ |
10687 | command_loop_level = -1; | |
10688 | immediate_quit = 0; | |
10689 | quit_char = Ctl ('g'); | |
24597608 | 10690 | Vunread_command_events = Qnil; |
86e5706b | 10691 | unread_command_char = -1; |
87dd9b9b | 10692 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10693 | total_keys = 0; |
9deb415a | 10694 | recent_keys_index = 0; |
beecf6a1 KH |
10695 | kbd_fetch_ptr = kbd_buffer; |
10696 | kbd_store_ptr = kbd_buffer; | |
2eb6bfbe | 10697 | #ifdef HAVE_MOUSE |
a9d77f1f | 10698 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10699 | #endif |
284f4730 JB |
10700 | input_pending = 0; |
10701 | ||
4c52b668 KH |
10702 | /* This means that command_loop_1 won't try to select anything the first |
10703 | time through. */ | |
10704 | internal_last_event_frame = Qnil; | |
10705 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10706 | |
c5fdd383 | 10707 | #ifdef MULTI_KBOARD |
aaca43a1 | 10708 | current_kboard = initial_kboard; |
6c6083a9 | 10709 | #endif |
aaca43a1 | 10710 | wipe_kboard (current_kboard); |
c5fdd383 | 10711 | init_kboard (current_kboard); |
07d2b8de | 10712 | |
7a80a6f6 | 10713 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
10714 | { |
10715 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 10716 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10717 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10718 | SIGQUIT and we can't tell which one it will give us. */ | |
10719 | signal (SIGQUIT, interrupt_signal); | |
10720 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10721 | } |
284f4730 JB |
10722 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10723 | #ifdef SIGIO | |
7a80a6f6 RS |
10724 | if (!noninteractive) |
10725 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10726 | #endif /* SIGIO */ |
284f4730 JB |
10727 | |
10728 | /* Use interrupt input by default, if it works and noninterrupt input | |
10729 | has deficiencies. */ | |
10730 | ||
10731 | #ifdef INTERRUPT_INPUT | |
10732 | interrupt_input = 1; | |
10733 | #else | |
10734 | interrupt_input = 0; | |
10735 | #endif | |
10736 | ||
10737 | /* Our VMS input only works by interrupts, as of now. */ | |
10738 | #ifdef VMS | |
10739 | interrupt_input = 1; | |
10740 | #endif | |
10741 | ||
10742 | sigfree (); | |
10743 | dribble = 0; | |
10744 | ||
10745 | if (keyboard_init_hook) | |
10746 | (*keyboard_init_hook) (); | |
10747 | ||
10748 | #ifdef POLL_FOR_INPUT | |
10749 | poll_suppress_count = 1; | |
10750 | start_polling (); | |
10751 | #endif | |
365fa1b3 AC |
10752 | |
10753 | #ifdef MAC_OSX | |
10754 | /* At least provide an escape route since C-g doesn't work. */ | |
10755 | signal (SIGINT, interrupt_signal); | |
10756 | #endif | |
284f4730 JB |
10757 | } |
10758 | ||
df0f2ba1 | 10759 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10760 | event header symbols and put properties on them. */ |
10761 | struct event_head { | |
10762 | Lisp_Object *var; | |
10763 | char *name; | |
10764 | Lisp_Object *kind; | |
10765 | }; | |
10766 | ||
10767 | struct event_head head_table[] = { | |
7406e988 PJ |
10768 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10769 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10770 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10771 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10772 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 10773 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
10774 | /* `select-window' should be handled just like `switch-frame' |
10775 | in read_key_sequence. */ | |
10776 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
10777 | }; |
10778 | ||
dfcf069d | 10779 | void |
284f4730 JB |
10780 | syms_of_keyboard () |
10781 | { | |
f0c1cc56 GM |
10782 | Vpre_help_message = Qnil; |
10783 | staticpro (&Vpre_help_message); | |
c60ee5e7 | 10784 | |
8e1e4240 GM |
10785 | Vlispy_mouse_stem = build_string ("mouse"); |
10786 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 10787 | |
9ea173e8 | 10788 | /* Tool-bars. */ |
7ee32cda GM |
10789 | QCimage = intern (":image"); |
10790 | staticpro (&QCimage); | |
10791 | ||
10792 | staticpro (&Qhelp_echo); | |
10793 | Qhelp_echo = intern ("help-echo"); | |
10794 | ||
e8886a1d RS |
10795 | staticpro (&item_properties); |
10796 | item_properties = Qnil; | |
10797 | ||
9ea173e8 GM |
10798 | staticpro (&tool_bar_item_properties); |
10799 | tool_bar_item_properties = Qnil; | |
10800 | staticpro (&tool_bar_items_vector); | |
10801 | tool_bar_items_vector = Qnil; | |
7ee32cda | 10802 | |
d5eecefb RS |
10803 | staticpro (&real_this_command); |
10804 | real_this_command = Qnil; | |
10805 | ||
d925fb39 RS |
10806 | Qtimer_event_handler = intern ("timer-event-handler"); |
10807 | staticpro (&Qtimer_event_handler); | |
10808 | ||
971e4c98 LT |
10809 | Qdisabled_command_function = intern ("disabled-command-function"); |
10810 | staticpro (&Qdisabled_command_function); | |
2e894dab | 10811 | |
284f4730 JB |
10812 | Qself_insert_command = intern ("self-insert-command"); |
10813 | staticpro (&Qself_insert_command); | |
10814 | ||
10815 | Qforward_char = intern ("forward-char"); | |
10816 | staticpro (&Qforward_char); | |
10817 | ||
10818 | Qbackward_char = intern ("backward-char"); | |
10819 | staticpro (&Qbackward_char); | |
10820 | ||
10821 | Qdisabled = intern ("disabled"); | |
10822 | staticpro (&Qdisabled); | |
10823 | ||
e58aa385 RS |
10824 | Qundefined = intern ("undefined"); |
10825 | staticpro (&Qundefined); | |
10826 | ||
86e5706b RS |
10827 | Qpre_command_hook = intern ("pre-command-hook"); |
10828 | staticpro (&Qpre_command_hook); | |
10829 | ||
10830 | Qpost_command_hook = intern ("post-command-hook"); | |
10831 | staticpro (&Qpost_command_hook); | |
10832 | ||
3ef14e46 RS |
10833 | Qdeferred_action_function = intern ("deferred-action-function"); |
10834 | staticpro (&Qdeferred_action_function); | |
10835 | ||
40932d1a RS |
10836 | Qcommand_hook_internal = intern ("command-hook-internal"); |
10837 | staticpro (&Qcommand_hook_internal); | |
10838 | ||
284f4730 JB |
10839 | Qfunction_key = intern ("function-key"); |
10840 | staticpro (&Qfunction_key); | |
13b5e56c | 10841 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 10842 | staticpro (&Qmouse_click); |
c16dab62 | 10843 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 GV |
10844 | Qlanguage_change = intern ("language-change"); |
10845 | staticpro (&Qlanguage_change); | |
07de30b9 | 10846 | #endif |
a24dc617 RS |
10847 | Qdrag_n_drop = intern ("drag-n-drop"); |
10848 | staticpro (&Qdrag_n_drop); | |
284f4730 | 10849 | |
4ebc27a5 | 10850 | Qsave_session = intern ("save-session"); |
6e604a9b | 10851 | staticpro (&Qsave_session); |
c60ee5e7 | 10852 | |
5bf68f6e AS |
10853 | Qusr1_signal = intern ("usr1-signal"); |
10854 | staticpro (&Qusr1_signal); | |
10855 | Qusr2_signal = intern ("usr2-signal"); | |
10856 | staticpro (&Qusr2_signal); | |
10857 | ||
598a9fa7 JB |
10858 | Qmenu_enable = intern ("menu-enable"); |
10859 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
10860 | Qmenu_alias = intern ("menu-alias"); |
10861 | staticpro (&Qmenu_alias); | |
10862 | QCenable = intern (":enable"); | |
10863 | staticpro (&QCenable); | |
10864 | QCvisible = intern (":visible"); | |
10865 | staticpro (&QCvisible); | |
7ee32cda GM |
10866 | QChelp = intern (":help"); |
10867 | staticpro (&QChelp); | |
e8886a1d RS |
10868 | QCfilter = intern (":filter"); |
10869 | staticpro (&QCfilter); | |
10870 | QCbutton = intern (":button"); | |
10871 | staticpro (&QCbutton); | |
74c1de23 RS |
10872 | QCkeys = intern (":keys"); |
10873 | staticpro (&QCkeys); | |
10874 | QCkey_sequence = intern (":key-sequence"); | |
10875 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
10876 | QCtoggle = intern (":toggle"); |
10877 | staticpro (&QCtoggle); | |
10878 | QCradio = intern (":radio"); | |
10879 | staticpro (&QCradio); | |
598a9fa7 | 10880 | |
284f4730 JB |
10881 | Qmode_line = intern ("mode-line"); |
10882 | staticpro (&Qmode_line); | |
e5d77022 JB |
10883 | Qvertical_line = intern ("vertical-line"); |
10884 | staticpro (&Qvertical_line); | |
3c370943 JB |
10885 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
10886 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
10887 | Qmenu_bar = intern ("menu-bar"); |
10888 | staticpro (&Qmenu_bar); | |
4bb994d1 | 10889 | |
c22237f7 KS |
10890 | #ifdef HAVE_MOUSE |
10891 | Qmouse_fixup_help_message = intern ("mouse-fixup-help-message"); | |
10892 | staticpro (&Qmouse_fixup_help_message); | |
10893 | #endif | |
10894 | ||
4bb994d1 JB |
10895 | Qabove_handle = intern ("above-handle"); |
10896 | staticpro (&Qabove_handle); | |
10897 | Qhandle = intern ("handle"); | |
10898 | staticpro (&Qhandle); | |
10899 | Qbelow_handle = intern ("below-handle"); | |
10900 | staticpro (&Qbelow_handle); | |
db08707d RS |
10901 | Qup = intern ("up"); |
10902 | staticpro (&Qup); | |
10903 | Qdown = intern ("down"); | |
10904 | staticpro (&Qdown); | |
7ee32cda GM |
10905 | Qtop = intern ("top"); |
10906 | staticpro (&Qtop); | |
10907 | Qbottom = intern ("bottom"); | |
10908 | staticpro (&Qbottom); | |
10909 | Qend_scroll = intern ("end-scroll"); | |
10910 | staticpro (&Qend_scroll); | |
eef28553 SM |
10911 | Qratio = intern ("ratio"); |
10912 | staticpro (&Qratio); | |
284f4730 | 10913 | |
cd21b839 | 10914 | Qevent_kind = intern ("event-kind"); |
284f4730 | 10915 | staticpro (&Qevent_kind); |
88cb0656 JB |
10916 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
10917 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
10918 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
10919 | staticpro (&Qevent_symbol_element_mask); | |
10920 | Qmodifier_cache = intern ("modifier-cache"); | |
10921 | staticpro (&Qmodifier_cache); | |
284f4730 | 10922 | |
48e416d4 RS |
10923 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
10924 | staticpro (&Qrecompute_lucid_menubar); | |
10925 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
10926 | staticpro (&Qactivate_menubar_hook); | |
10927 | ||
f4eef8b4 RS |
10928 | Qpolling_period = intern ("polling-period"); |
10929 | staticpro (&Qpolling_period); | |
10930 | ||
7d18f9ae RS |
10931 | Qinput_method_function = intern ("input-method-function"); |
10932 | staticpro (&Qinput_method_function); | |
10933 | ||
d5eecefb RS |
10934 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
10935 | staticpro (&Qinput_method_exit_on_first_char); | |
10936 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
10937 | staticpro (&Qinput_method_use_echo_area); | |
10938 | ||
10939 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
10940 | Fset (Qinput_method_use_echo_area, Qnil); | |
10941 | ||
e18dfbf4 KR |
10942 | last_point_position_buffer = Qnil; |
10943 | ||
284f4730 JB |
10944 | { |
10945 | struct event_head *p; | |
10946 | ||
10947 | for (p = head_table; | |
10948 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
10949 | p++) | |
10950 | { | |
10951 | *p->var = intern (p->name); | |
10952 | staticpro (p->var); | |
10953 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 10954 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
10955 | } |
10956 | } | |
10957 | ||
8e1e4240 | 10958 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 10959 | staticpro (&button_down_location); |
8e1e4240 GM |
10960 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
10961 | staticpro (&mouse_syms); | |
8006e4bb JR |
10962 | wheel_syms = Fmake_vector (make_number (2), Qnil); |
10963 | staticpro (&wheel_syms); | |
88cb0656 JB |
10964 | |
10965 | { | |
10966 | int i; | |
10967 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
10968 | ||
10969 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
10970 | for (i = 0; i < len; i++) | |
86e5706b RS |
10971 | if (modifier_names[i]) |
10972 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
10973 | staticpro (&modifier_symbols); |
10974 | } | |
10975 | ||
9deb415a JB |
10976 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
10977 | staticpro (&recent_keys); | |
10978 | ||
6569cc8d | 10979 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 10980 | staticpro (&this_command_keys); |
6569cc8d | 10981 | |
7d18f9ae RS |
10982 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
10983 | staticpro (&raw_keybuf); | |
10984 | ||
03b4122a BF |
10985 | Qextended_command_history = intern ("extended-command-history"); |
10986 | Fset (Qextended_command_history, Qnil); | |
10987 | staticpro (&Qextended_command_history); | |
10988 | ||
24597608 RS |
10989 | accent_key_syms = Qnil; |
10990 | staticpro (&accent_key_syms); | |
10991 | ||
284f4730 JB |
10992 | func_key_syms = Qnil; |
10993 | staticpro (&func_key_syms); | |
10994 | ||
a24dc617 RS |
10995 | drag_n_drop_syms = Qnil; |
10996 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 10997 | |
cd21b839 JB |
10998 | unread_switch_frame = Qnil; |
10999 | staticpro (&unread_switch_frame); | |
11000 | ||
fe412364 EN |
11001 | internal_last_event_frame = Qnil; |
11002 | staticpro (&internal_last_event_frame); | |
11003 | ||
11004 | read_key_sequence_cmd = Qnil; | |
11005 | staticpro (&read_key_sequence_cmd); | |
11006 | ||
759860a6 RS |
11007 | menu_bar_one_keymap_changed_items = Qnil; |
11008 | staticpro (&menu_bar_one_keymap_changed_items); | |
11009 | ||
7320c7de KS |
11010 | menu_bar_items_vector = Qnil; |
11011 | staticpro (&menu_bar_items_vector); | |
11012 | ||
a1706c30 | 11013 | defsubr (&Sevent_convert_list); |
284f4730 | 11014 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11015 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11016 | defsubr (&Srecursive_edit); |
2eb6bfbe | 11017 | #ifdef HAVE_MOUSE |
284f4730 | 11018 | defsubr (&Strack_mouse); |
2eb6bfbe | 11019 | #endif |
284f4730 JB |
11020 | defsubr (&Sinput_pending_p); |
11021 | defsubr (&Scommand_execute); | |
11022 | defsubr (&Srecent_keys); | |
11023 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11024 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11025 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11026 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11027 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11028 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11029 | defsubr (&Ssuspend_emacs); |
11030 | defsubr (&Sabort_recursive_edit); | |
11031 | defsubr (&Sexit_recursive_edit); | |
11032 | defsubr (&Srecursion_depth); | |
11033 | defsubr (&Stop_level); | |
11034 | defsubr (&Sdiscard_input); | |
11035 | defsubr (&Sopen_dribble_file); | |
11036 | defsubr (&Sset_input_mode); | |
80645119 | 11037 | defsubr (&Scurrent_input_mode); |
284f4730 | 11038 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11039 | defsubr (&Sposn_at_point); |
11040 | defsubr (&Sposn_at_x_y); | |
284f4730 | 11041 | |
284f4730 | 11042 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 11043 | doc: /* Last input event that was part of a command. */); |
86e5706b | 11044 | |
186cf719 | 11045 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 11046 | doc: /* Last input event that was part of a command. */); |
284f4730 | 11047 | |
7d6de002 | 11048 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
11049 | doc: /* Last input event in a command, except for mouse menu events. |
11050 | Mouse menus give back keys that don't look like mouse events; | |
11051 | this variable holds the actual mouse event that led to the menu, | |
11052 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 11053 | |
284f4730 | 11054 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 11055 | doc: /* Last input event. */); |
86e5706b | 11056 | |
186cf719 | 11057 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 11058 | doc: /* Last input event. */); |
284f4730 | 11059 | |
24597608 | 11060 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
11061 | doc: /* List of events to be read as the command input. |
11062 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 11063 | Vunread_command_events = Qnil; |
284f4730 | 11064 | |
86e5706b | 11065 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 11066 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 11067 | |
7d18f9ae | 11068 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
11069 | doc: /* List of events to be processed as input by input methods. |
11070 | These events are processed after `unread-command-events', but | |
11071 | before actual keyboard input. */); | |
7d18f9ae RS |
11072 | Vunread_post_input_method_events = Qnil; |
11073 | ||
11074 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
11075 | doc: /* List of events to be processed as input by input methods. |
11076 | These events are processed after `unread-command-events', but | |
11077 | before actual keyboard input. */); | |
7d18f9ae RS |
11078 | Vunread_input_method_events = Qnil; |
11079 | ||
284f4730 | 11080 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
11081 | doc: /* Meta-prefix character code. |
11082 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 11083 | XSETINT (meta_prefix_char, 033); |
284f4730 | 11084 | |
6c7178b9 | 11085 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
11086 | doc: /* The last command executed. |
11087 | Normally a symbol with a function definition, but can be whatever was found | |
11088 | in the keymap, or whatever the variable `this-command' was set to by that | |
11089 | command. | |
11090 | ||
11091 | The value `mode-exit' is special; it means that the previous command | |
11092 | read an event that told it to exit, and it did so and unread that event. | |
11093 | In other words, the present command is the event that made the previous | |
11094 | command exit. | |
11095 | ||
11096 | The value `kill-region' is special; it means that the previous command | |
11097 | was a kill command. */); | |
284f4730 | 11098 | |
75045dcb | 11099 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 11100 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 11101 | |
d5eecefb | 11102 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
11103 | doc: /* The command now being executed. |
11104 | The command can set this variable; whatever is put here | |
11105 | will be in `last-command' during the following command. */); | |
d5eecefb | 11106 | Vthis_command = Qnil; |
284f4730 | 11107 | |
8b9940e6 | 11108 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
11109 | doc: /* The command bound to the current key sequence before remapping. |
11110 | It equals `this-command' if the original command was not remapped through | |
11111 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 11112 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
11113 | Vthis_original_command = Qnil; |
11114 | ||
284f4730 | 11115 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
11116 | doc: /* *Number of input events between auto-saves. |
11117 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
11118 | auto_save_interval = 300; |
11119 | ||
11120 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
11121 | doc: /* *Number of seconds idle time before auto-save. |
11122 | Zero or nil means disable auto-saving due to idleness. | |
11123 | After auto-saving due to this many seconds of idle time, | |
11124 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 11125 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 11126 | |
39aab679 | 11127 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
11128 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
11129 | The value may be integer or floating point. */); | |
39aab679 | 11130 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
11131 | |
11132 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
11133 | doc: /* *Interval between polling for input during Lisp execution. |
11134 | The reason for polling is to make C-g work to stop a running program. | |
11135 | Polling is needed only when using X windows and SIGIO does not work. | |
11136 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 11137 | polling_period = 2; |
df0f2ba1 | 11138 | |
564dc952 | 11139 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
11140 | doc: /* *Maximum time between mouse clicks to make a double-click. |
11141 | Measured in milliseconds. nil means disable double-click recognition; | |
11142 | t means double-clicks have no time limit and are detected | |
11143 | by position only. */); | |
aab06933 | 11144 | Vdouble_click_time = make_number (500); |
fbcd35bd | 11145 | |
222d557c | 11146 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
11147 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
11148 | On window-system frames, value is the number of pixels the mouse may have | |
11149 | moved horizontally or vertically between two clicks to make a double-click. | |
11150 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
11151 | instead of pixels. |
11152 | ||
11153 | This variable is also the threshold for motion of the mouse | |
11154 | to count as a drag. */); | |
222d557c | 11155 | double_click_fuzz = 3; |
c60ee5e7 | 11156 | |
03361bcc | 11157 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 11158 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
11159 | inhibit_local_menu_bar_menus = 0; |
11160 | ||
284f4730 | 11161 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
11162 | doc: /* Number of complete key sequences read as input so far. |
11163 | This includes key sequences read from keyboard macros. | |
11164 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
11165 | num_input_keys = 0; |
11166 | ||
c43b1734 | 11167 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
11168 | doc: /* Number of input events read from the keyboard so far. |
11169 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 11170 | num_nonmacro_input_events = 0; |
fa90970d | 11171 | |
4c52b668 | 11172 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
11173 | doc: /* The frame in which the most recently read event occurred. |
11174 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
11175 | Vlast_event_frame = Qnil; |
11176 | ||
fa90970d RS |
11177 | /* This variable is set up in sysdep.c. */ |
11178 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 11179 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 11180 | |
7e85b935 | 11181 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
11182 | doc: /* Character to recognize as meaning Help. |
11183 | When it is read, do `(eval help-form)', and display result if it's a string. | |
11184 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 11185 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 11186 | |
ecb7cb34 | 11187 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
11188 | doc: /* List of input events to recognize as meaning Help. |
11189 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
11190 | Vhelp_event_list = Qnil; |
11191 | ||
284f4730 | 11192 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
11193 | doc: /* Form to execute when character `help-char' is read. |
11194 | If the form returns a string, that string is displayed. | |
11195 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
11196 | Vhelp_form = Qnil; |
11197 | ||
7e85b935 | 11198 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
11199 | doc: /* Command to run when `help-char' character follows a prefix key. |
11200 | This command is used only when there is no actual binding | |
11201 | for that character after that prefix key. */); | |
7e85b935 RS |
11202 | Vprefix_help_command = Qnil; |
11203 | ||
284f4730 | 11204 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
11205 | doc: /* Form to evaluate when Emacs starts up. |
11206 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
11207 | Vtop_level = Qnil; |
11208 | ||
11209 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
4707d2d0 | 11210 | doc: /* Translate table for keyboard input, or nil. |
669de2fb LT |
11211 | If non-nil, the value should be a char-table. Each character read |
11212 | from the keyboard is looked up in this char-table. If the value found | |
11213 | there is non-nil, then it is used instead of the actual input character. | |
11214 | ||
11215 | The value can also be a string or vector, but this is considered obsolete. | |
11216 | If it is a string or vector of length N, character codes N and up are left | |
11217 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
11218 | |
11219 | This is applied to the characters supplied to input methods, not their | |
11220 | output. See also `translation-table-for-input'. */); | |
284f4730 JB |
11221 | Vkeyboard_translate_table = Qnil; |
11222 | ||
8026024c | 11223 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
11224 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
11225 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
11226 | cannot_suspend = 0; |
11227 | ||
284f4730 | 11228 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
11229 | doc: /* Non-nil means prompt with menus when appropriate. |
11230 | This is done when reading from a keymap that has a prompt string, | |
11231 | for elements that have prompt strings. | |
11232 | The menu is displayed on the screen | |
11233 | if X menus were enabled at configuration | |
11234 | time and the previous event was a mouse click prefix key. | |
11235 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
11236 | menu_prompting = 1; |
11237 | ||
11238 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
11239 | doc: /* Character to see next line of menu prompt. |
11240 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 11241 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
11242 | |
11243 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
11244 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
11245 | Emacs applies the modifiers of the character stored here to each keyboard | |
11246 | character it reads. For example, after evaluating the expression | |
11247 | (setq extra-keyboard-modifiers ?\\C-x) | |
11248 | all input characters will have the control modifier applied to them. | |
11249 | ||
11250 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
11251 | not count as a control character; rather, it counts as a character | |
11252 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
11253 | cancels any modification. */); | |
9fa4395d | 11254 | extra_keyboard_modifiers = 0; |
86e5706b RS |
11255 | |
11256 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
11257 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
11258 | The command loop sets this to nil before each command, | |
11259 | and tests the value when the command returns. | |
11260 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
11261 | Vdeactivate_mark = Qnil; |
11262 | ||
b0f2a7bf | 11263 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 11264 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
11265 | Vcommand_hook_internal = Qnil; |
11266 | ||
86e5706b | 11267 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
11268 | doc: /* Normal hook run before each command is executed. |
11269 | If an unhandled error happens in running this hook, | |
11270 | the hook value is set to nil, since otherwise the error | |
11271 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
11272 | Vpre_command_hook = Qnil; |
11273 | ||
11274 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
11275 | doc: /* Normal hook run after each command is executed. |
11276 | If an unhandled error happens in running this hook, | |
11277 | the hook value is set to nil, since otherwise the error | |
11278 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 11279 | Vpost_command_hook = Qnil; |
48e416d4 | 11280 | |
cf24f894 RS |
11281 | #if 0 |
11282 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 11283 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
11284 | #endif |
11285 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
c8e16a02 | 11286 | staticpro (&Qecho_area_clear_hook); |
cf24f894 | 11287 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 11288 | |
48e416d4 | 11289 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 11290 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 11291 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 11292 | |
9f9c0e27 | 11293 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
11294 | doc: /* List of menu bar items to move to the end of the menu bar. |
11295 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 11296 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 11297 | |
217258d5 KH |
11298 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
11299 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
11300 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
11301 | If this variable is non-nil, it is used as a keymap instead of the | |
11302 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
11303 | It also replaces `overriding-local-map'. |
11304 | ||
4707d2d0 PJ |
11305 | This variable is intended to let commands such as `universal-argument' |
11306 | set up a different keymap for reading the next command. */); | |
217258d5 | 11307 | |
9dd3131c | 11308 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 | 11309 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
11310 | If this variable is non-nil, it is used as a keymap--replacing the |
11311 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
11312 | Voverriding_local_map = Qnil; |
11313 | ||
d0a49716 | 11314 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11315 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11316 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11317 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11318 | Voverriding_local_map_menu_flag = Qnil; |
11319 | ||
7f07d5ca | 11320 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 11321 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
11322 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
11323 | ||
71edead1 | 11324 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 11325 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11326 | |
7c97ffdc | 11327 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11328 | doc: /* Alist of system-specific X windows key symbols. |
11329 | Each element should have the form (N . SYMBOL) where N is the | |
11330 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
11331 | and SYMBOL is its name. */); | |
8a792f3a RS |
11332 | |
11333 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
4707d2d0 PJ |
11334 | doc: /* List of deferred actions to be performed at a later time. |
11335 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
11336 | Vdeferred_action_list = Qnil; |
11337 | ||
11338 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
11339 | doc: /* Function to call to handle deferred actions, after each command. |
11340 | This function is called with no arguments after each command | |
11341 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 11342 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
11343 | |
11344 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
11345 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
11346 | The value can be a length of time to show the message for. | |
11347 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 11348 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 11349 | |
c04cbc3b | 11350 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 11351 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 11352 | Vtimer_list = Qnil; |
d9d4c147 KH |
11353 | |
11354 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 11355 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 11356 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
11357 | |
11358 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
11359 | doc: /* If non-nil, the function that implements the current input method. |
11360 | It's called with one argument, a printing character that was just read. | |
11361 | \(That means a character with code 040...0176.) | |
11362 | Typically this function uses `read-event' to read additional events. | |
11363 | When it does so, it should first bind `input-method-function' to nil | |
11364 | so it will not be called recursively. | |
11365 | ||
11366 | The function should return a list of zero or more events | |
11367 | to be used as input. If it wants to put back some events | |
11368 | to be reconsidered, separately, by the input method, | |
11369 | it can add them to the beginning of `unread-command-events'. | |
11370 | ||
11371 | The input method function can find in `input-method-previous-method' | |
11372 | the previous echo area message. | |
11373 | ||
11374 | The input method function should refer to the variables | |
11375 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
11376 | for guidance on what to do. */); | |
7d18f9ae | 11377 | Vinput_method_function = Qnil; |
d5eecefb RS |
11378 | |
11379 | DEFVAR_LISP ("input-method-previous-message", | |
11380 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
11381 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
11382 | This variable exists because `read-event' clears the echo area | |
11383 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 11384 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
11385 | |
11386 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
11387 | doc: /* If non-nil, the function that implements the display of help. |
11388 | It's called with one argument, the help string to display. */); | |
7ee32cda | 11389 | Vshow_help_function = Qnil; |
adf5cb9c KH |
11390 | |
11391 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
11392 | doc: /* If non-nil, suppress point adjustment after executing a command. |
11393 | ||
11394 | After a command is executed, if point is moved into a region that has | |
11395 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
11396 | the boundary of the region. But, when a command sets this variable to |
11397 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
11398 | |
11399 | This variable is set to nil before reading a command, and is checked | |
11400 | just after executing the command. */); | |
adf5cb9c KH |
11401 | Vdisable_point_adjustment = Qnil; |
11402 | ||
11403 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11404 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11405 | doc: /* *If non-nil, always suppress point adjustment. |
11406 | ||
11407 | The default value is nil, in which case, point adjustment are | |
11408 | suppressed only after special commands that set | |
11409 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11410 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11411 | |
a1d34b1e | 11412 | DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings, |
4707d2d0 PJ |
11413 | doc: /* Non-nil means updating menu bindings is allowed. |
11414 | A value of nil means menu bindings should not be updated. | |
11415 | Used during Emacs' startup. */); | |
3626fb1a | 11416 | update_menu_bindings = 1; |
00392ce6 MB |
11417 | |
11418 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, | |
4707d2d0 PJ |
11419 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11420 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11421 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da KS |
11422 | |
11423 | DEFVAR_LISP ("throw-on-input", &Vthrow_on_input, | |
11424 | doc: /* If non-nil, any keyboard input throws to this symbol. | |
11425 | The value of that variable is passed to `quit-flag' and later causes a | |
11426 | peculiar kind of quitting. */); | |
11427 | Vthrow_on_input = Qnil; | |
284f4730 JB |
11428 | } |
11429 | ||
dfcf069d | 11430 | void |
284f4730 JB |
11431 | keys_of_keyboard () |
11432 | { | |
11433 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11434 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11435 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11436 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11437 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11438 | |
11439 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11440 | "handle-delete-frame"); | |
a18bf897 SM |
11441 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
11442 | current-prefix-arg, as is done in `handle-switch-frame'. | |
11443 | But `handle-switch-frame is not run from the special-map. | |
11444 | Commands from that map are run in a special way that automatically | |
11445 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
11446 | redundant but harmful: | |
11447 | - C-u C-x v = | |
11448 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
11449 | - after the first prompt, the exit-minibuffer-hook is run which may | |
11450 | iconify a frame and thus push a `iconify-frame' event. | |
11451 | - after running exit-minibuffer-hook, current-prefix-arg is | |
11452 | restored to the non-nil value it had before the prompt. | |
11453 | - we enter the second prompt. | |
11454 | current-prefix-arg is non-nil, prefix-arg is nil. | |
11455 | - before running the first real event, we run the special iconify-frame | |
11456 | event, but we pass the `special' arg to execute-command so | |
11457 | current-prefix-arg and prefix-arg are left untouched. | |
11458 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
11459 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 11460 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 11461 | "ignore"); |
7f07d5ca | 11462 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 11463 | "ignore"); |
a4e19f6e SM |
11464 | /* Handling it at such a low-level causes read_key_sequence to get |
11465 | * confused because it doesn't realize that the current_buffer was | |
11466 | * changed by read_char. | |
2320865d | 11467 | * |
a4e19f6e SM |
11468 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
11469 | * "handle-select-window"); */ | |
4ebc27a5 JD |
11470 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11471 | "handle-save-session"); | |
284f4730 | 11472 | } |
1269a761 SM |
11473 | |
11474 | /* Mark the pointers in the kboard objects. | |
11475 | Called by the Fgarbage_collector. */ | |
11476 | void | |
11477 | mark_kboards () | |
11478 | { | |
11479 | KBOARD *kb; | |
11480 | Lisp_Object *p; | |
11481 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
11482 | { | |
11483 | if (kb->kbd_macro_buffer) | |
11484 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
11485 | mark_object (*p); |
11486 | mark_object (kb->Voverriding_terminal_local_map); | |
11487 | mark_object (kb->Vlast_command); | |
11488 | mark_object (kb->Vreal_last_command); | |
11489 | mark_object (kb->Vprefix_arg); | |
11490 | mark_object (kb->Vlast_prefix_arg); | |
11491 | mark_object (kb->kbd_queue); | |
11492 | mark_object (kb->defining_kbd_macro); | |
11493 | mark_object (kb->Vlast_kbd_macro); | |
11494 | mark_object (kb->Vsystem_key_alist); | |
11495 | mark_object (kb->system_key_syms); | |
11496 | mark_object (kb->Vdefault_minibuffer_frame); | |
11497 | mark_object (kb->echo_string); | |
1269a761 SM |
11498 | } |
11499 | { | |
11500 | struct input_event *event; | |
11501 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
11502 | { | |
11503 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
11504 | event = kbd_buffer; | |
e3f6e7c7 KS |
11505 | if (event->kind != SELECTION_REQUEST_EVENT |
11506 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
11507 | { |
11508 | mark_object (event->x); | |
11509 | mark_object (event->y); | |
11510 | } | |
3ebb8729 SM |
11511 | mark_object (event->frame_or_window); |
11512 | mark_object (event->arg); | |
1269a761 SM |
11513 | } |
11514 | } | |
11515 | } | |
ab5796a9 MB |
11516 | |
11517 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
11518 | (do not change this comment) */ |