Commit | Line | Data |
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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> |
9628b887 | 26 | #include "lisp.h" |
284f4730 JB |
27 | #include "termchar.h" |
28 | #include "termopts.h" | |
428a555e | 29 | #include "frame.h" |
284f4730 JB |
30 | #include "termhooks.h" |
31 | #include "macros.h" | |
02639609 | 32 | #include "keyboard.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" |
52baf19e | 62 | |
03cee6ae GM |
63 | #include <sys/types.h> |
64 | #ifdef HAVE_UNISTD_H | |
65 | #include <unistd.h> | |
66 | #endif | |
67 | ||
e31d908f DN |
68 | #ifdef HAVE_FCNTL_H |
69 | #include <fcntl.h> | |
70 | #endif | |
71 | ||
c5e3b6c5 RS |
72 | /* This is to get the definitions of the XK_ symbols. */ |
73 | #ifdef HAVE_X_WINDOWS | |
74 | #include "xterm.h" | |
75 | #endif | |
76 | ||
e98a93eb GV |
77 | #ifdef HAVE_NTGUI |
78 | #include "w32term.h" | |
79 | #endif /* HAVE_NTGUI */ | |
80 | ||
e0f712ba | 81 | #ifdef MAC_OS |
1a578e9b AC |
82 | #include "macterm.h" |
83 | #endif | |
84 | ||
02639609 | 85 | #ifndef USE_CRT_DLL |
52baf19e | 86 | extern int errno; |
02639609 | 87 | #endif |
52baf19e | 88 | |
9ac0d9e0 JB |
89 | /* Variables for blockinput.h: */ |
90 | ||
91 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 92 | int interrupt_input_blocked; |
9ac0d9e0 JB |
93 | |
94 | /* Nonzero means an input interrupt has arrived | |
95 | during the current critical section. */ | |
63927c41 | 96 | int interrupt_input_pending; |
9ac0d9e0 JB |
97 | |
98 | ||
e98a93eb | 99 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 100 | /* Make all keyboard buffers much bigger when using X windows. */ |
e0f712ba AC |
101 | #ifdef MAC_OS8 |
102 | /* But not too big (local data > 32K error) if on Mac OS Classic. */ | |
f019cded RS |
103 | #define KBD_BUFFER_SIZE 512 |
104 | #else | |
284f4730 | 105 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 106 | #endif |
284f4730 | 107 | #else /* No X-windows, character input */ |
de11c1ea | 108 | #define KBD_BUFFER_SIZE 4096 |
284f4730 JB |
109 | #endif /* No X-windows */ |
110 | ||
222d557c GM |
111 | #define abs(x) ((x) >= 0 ? (x) : -(x)) |
112 | ||
284f4730 JB |
113 | /* Following definition copied from eval.c */ |
114 | ||
115 | struct backtrace | |
116 | { | |
117 | struct backtrace *next; | |
118 | Lisp_Object *function; | |
119 | Lisp_Object *args; /* Points to vector of args. */ | |
120 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
121 | args points to slot holding list of | |
122 | unevalled args */ | |
123 | char evalargs; | |
080e18b1 KS |
124 | /* Nonzero means call value of debugger when done with this operation. */ |
125 | char debug_on_exit; | |
284f4730 JB |
126 | }; |
127 | ||
c5fdd383 KH |
128 | #ifdef MULTI_KBOARD |
129 | KBOARD *initial_kboard; | |
130 | KBOARD *current_kboard; | |
131 | KBOARD *all_kboards; | |
1e8bd3da | 132 | int single_kboard; |
6c6083a9 | 133 | #else |
c5fdd383 | 134 | KBOARD the_only_kboard; |
6c6083a9 | 135 | #endif |
612b78ef | 136 | |
284f4730 | 137 | /* Non-nil disable property on a command means |
971e4c98 LT |
138 | do not execute it; call disabled-command-function's value instead. */ |
139 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 JB |
140 | |
141 | #define NUM_RECENT_KEYS (100) | |
142 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
143 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 144 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 145 | |
6569cc8d JB |
146 | /* Vector holding the key sequence that invoked the current command. |
147 | It is reused for each command, and it may be longer than the current | |
148 | sequence; this_command_key_count indicates how many elements | |
149 | actually mean something. | |
150 | It's easier to staticpro a single Lisp_Object than an array. */ | |
151 | Lisp_Object this_command_keys; | |
152 | int this_command_key_count; | |
284f4730 | 153 | |
63020c46 RS |
154 | /* 1 after calling Freset_this_command_lengths. |
155 | Usually it is 0. */ | |
156 | int this_command_key_count_reset; | |
157 | ||
7d18f9ae RS |
158 | /* This vector is used as a buffer to record the events that were actually read |
159 | by read_key_sequence. */ | |
160 | Lisp_Object raw_keybuf; | |
161 | int raw_keybuf_count; | |
162 | ||
163 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 164 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
7d18f9ae RS |
165 | { \ |
166 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
167 | Lisp_Object new; \ | |
168 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
169 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
170 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
171 | raw_keybuf = new; \ | |
172 | } | |
173 | ||
6321824f RS |
174 | /* Number of elements of this_command_keys |
175 | that precede this key sequence. */ | |
176 | int this_single_command_key_start; | |
177 | ||
71918b75 RS |
178 | /* Record values of this_command_key_count and echo_length () |
179 | before this command was read. */ | |
180 | static int before_command_key_count; | |
181 | static int before_command_echo_length; | |
71918b75 | 182 | |
284f4730 JB |
183 | extern int minbuf_level; |
184 | ||
a59b172a RS |
185 | extern int message_enable_multibyte; |
186 | ||
284f4730 JB |
187 | extern struct backtrace *backtrace_list; |
188 | ||
7ee32cda GM |
189 | /* If non-nil, the function that implements the display of help. |
190 | It's called with one argument, the help string to display. */ | |
191 | ||
192 | Lisp_Object Vshow_help_function; | |
193 | ||
f0c1cc56 GM |
194 | /* If a string, the message displayed before displaying a help-echo |
195 | in the echo area. */ | |
196 | ||
197 | Lisp_Object Vpre_help_message; | |
198 | ||
284f4730 | 199 | /* Nonzero means do menu prompting. */ |
f0c1cc56 | 200 | |
284f4730 JB |
201 | static int menu_prompting; |
202 | ||
203 | /* Character to see next line of menu prompt. */ | |
f0c1cc56 | 204 | |
284f4730 JB |
205 | static Lisp_Object menu_prompt_more_char; |
206 | ||
207 | /* For longjmp to where kbd input is being done. */ | |
f0c1cc56 | 208 | |
284f4730 JB |
209 | static jmp_buf getcjmp; |
210 | ||
211 | /* True while doing kbd input. */ | |
212 | int waiting_for_input; | |
213 | ||
214 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 215 | |
c843d6c6 | 216 | int echoing; |
284f4730 | 217 | |
985f9f66 GM |
218 | /* Non-null means we can start echoing at the next input pause even |
219 | though there is something in the echo area. */ | |
220 | ||
221 | static struct kboard *ok_to_echo_at_next_pause; | |
222 | ||
59a84f8e GM |
223 | /* The kboard last echoing, or null for none. Reset to 0 in |
224 | cancel_echoing. If non-null, and a current echo area message | |
225 | exists, and echo_message_buffer is eq to the current message | |
226 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 227 | |
f49aedfd | 228 | struct kboard *echo_kboard; |
1fc93d49 | 229 | |
59a84f8e GM |
230 | /* The buffer used for echoing. Set in echo_now, reset in |
231 | cancel_echoing. */ | |
232 | ||
c843d6c6 | 233 | Lisp_Object echo_message_buffer; |
59a84f8e | 234 | |
03361bcc RS |
235 | /* Nonzero means disregard local maps for the menu bar. */ |
236 | static int inhibit_local_menu_bar_menus; | |
237 | ||
80e4aa30 | 238 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
239 | int immediate_quit; |
240 | ||
fa90970d RS |
241 | /* The user's ERASE setting. */ |
242 | Lisp_Object Vtty_erase_char; | |
243 | ||
284f4730 | 244 | /* Character to recognize as the help char. */ |
7e85b935 | 245 | Lisp_Object Vhelp_char; |
284f4730 | 246 | |
ecb7cb34 KH |
247 | /* List of other event types to recognize as meaning "help". */ |
248 | Lisp_Object Vhelp_event_list; | |
249 | ||
284f4730 JB |
250 | /* Form to execute when help char is typed. */ |
251 | Lisp_Object Vhelp_form; | |
252 | ||
7e85b935 RS |
253 | /* Command to run when the help character follows a prefix key. */ |
254 | Lisp_Object Vprefix_help_command; | |
255 | ||
9f9c0e27 RS |
256 | /* List of items that should move to the end of the menu bar. */ |
257 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 258 | |
6526ab49 RS |
259 | /* Non-nil means show the equivalent key-binding for |
260 | any M-x command that has one. | |
261 | The value can be a length of time to show the message for. | |
262 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
263 | Lisp_Object Vsuggest_key_bindings; | |
264 | ||
00392ce6 MB |
265 | /* How long to display an echo-area message when the minibuffer is active. |
266 | If the value is not a number, such messages don't time out. */ | |
267 | Lisp_Object Vminibuffer_message_timeout; | |
268 | ||
284f4730 JB |
269 | /* Character that causes a quit. Normally C-g. |
270 | ||
271 | If we are running on an ordinary terminal, this must be an ordinary | |
272 | ASCII char, since we want to make it our interrupt character. | |
273 | ||
274 | If we are not running on an ordinary terminal, it still needs to be | |
275 | an ordinary ASCII char. This character needs to be recognized in | |
276 | the input interrupt handler. At this point, the keystroke is | |
277 | represented as a struct input_event, while the desired quit | |
278 | character is specified as a lispy event. The mapping from struct | |
279 | input_events to lispy events cannot run in an interrupt handler, | |
280 | and the reverse mapping is difficult for anything but ASCII | |
281 | keystrokes. | |
282 | ||
283 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
284 | ASCII character. */ | |
285 | int quit_char; | |
286 | ||
287 | extern Lisp_Object current_global_map; | |
288 | extern int minibuf_level; | |
289 | ||
9dd3131c RS |
290 | /* If non-nil, this is a map that overrides all other local maps. */ |
291 | Lisp_Object Voverriding_local_map; | |
292 | ||
d0a49716 RS |
293 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
294 | Lisp_Object Voverriding_local_map_menu_flag; | |
295 | ||
7f07d5ca RS |
296 | /* Keymap that defines special misc events that should |
297 | be processed immediately at a low level. */ | |
298 | Lisp_Object Vspecial_event_map; | |
299 | ||
284f4730 JB |
300 | /* Current depth in recursive edits. */ |
301 | int command_loop_level; | |
302 | ||
303 | /* Total number of times command_loop has read a key sequence. */ | |
31ade731 | 304 | EMACS_INT num_input_keys; |
284f4730 JB |
305 | |
306 | /* Last input character read as a command. */ | |
307 | Lisp_Object last_command_char; | |
308 | ||
7d6de002 RS |
309 | /* Last input character read as a command, not counting menus |
310 | reached by the mouse. */ | |
311 | Lisp_Object last_nonmenu_event; | |
312 | ||
284f4730 JB |
313 | /* Last input character read for any purpose. */ |
314 | Lisp_Object last_input_char; | |
315 | ||
dbc4e1c1 | 316 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 317 | Lisp_Object Vunread_command_events; |
284f4730 | 318 | |
7d18f9ae RS |
319 | /* If not Qnil, a list of objects to be read as subsequent command input |
320 | including input method processing. */ | |
321 | Lisp_Object Vunread_input_method_events; | |
322 | ||
323 | /* If not Qnil, a list of objects to be read as subsequent command input | |
324 | but NOT including input method processing. */ | |
325 | Lisp_Object Vunread_post_input_method_events; | |
326 | ||
86e5706b | 327 | /* If not -1, an event to be read as subsequent command input. */ |
31ade731 | 328 | EMACS_INT unread_command_char; |
86e5706b | 329 | |
cd21b839 JB |
330 | /* If not Qnil, this is a switch-frame event which we decided to put |
331 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 332 | next command input, after any unread_command_events. |
8f805655 JB |
333 | |
334 | read_key_sequence uses this to delay switch-frame events until the | |
335 | end of the key sequence; Fread_char uses it to put off switch-frame | |
336 | events until a non-ASCII event is acceptable as input. */ | |
337 | Lisp_Object unread_switch_frame; | |
cd21b839 | 338 | |
9fa4395d | 339 | /* A mask of extra modifier bits to put into every keyboard char. */ |
31ade731 | 340 | EMACS_INT extra_keyboard_modifiers; |
9fa4395d | 341 | |
284f4730 JB |
342 | /* Char to use as prefix when a meta character is typed in. |
343 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
344 | ||
345 | Lisp_Object meta_prefix_char; | |
346 | ||
347 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
348 | static int last_non_minibuf_size; | |
349 | ||
06ef7355 | 350 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
351 | static Lisp_Object Vauto_save_timeout; |
352 | ||
353 | /* Total number of times read_char has returned. */ | |
4abfba1f | 354 | int num_input_events; |
284f4730 | 355 | |
51172b6d | 356 | /* Total number of times read_char has returned, outside of macros. */ |
31ade731 | 357 | EMACS_INT num_nonmacro_input_events; |
51172b6d | 358 | |
284f4730 JB |
359 | /* Auto-save automatically when this many characters have been typed |
360 | since the last time. */ | |
361 | ||
31ade731 | 362 | static EMACS_INT auto_save_interval; |
284f4730 | 363 | |
c43b1734 | 364 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
365 | |
366 | int last_auto_save; | |
367 | ||
284f4730 | 368 | /* The command being executed by the command loop. |
6c7178b9 KH |
369 | Commands may set this, and the value set will be copied into |
370 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
371 | Lisp_Object Vthis_command; |
372 | ||
373 | /* This is like Vthis_command, except that commands never set it. */ | |
374 | Lisp_Object real_this_command; | |
284f4730 | 375 | |
8b9940e6 KS |
376 | /* If the lookup of the command returns a binding, the original |
377 | command is stored in this-original-command. It is nil otherwise. */ | |
378 | Lisp_Object Vthis_original_command; | |
379 | ||
b453f72e KH |
380 | /* The value of point when the last command was executed. */ |
381 | int last_point_position; | |
382 | ||
047688cb RS |
383 | /* The buffer that was current when the last command was started. */ |
384 | Lisp_Object last_point_position_buffer; | |
385 | ||
4c52b668 KH |
386 | /* The frame in which the last input event occurred, or Qmacro if the |
387 | last event came from a macro. We use this to determine when to | |
388 | generate switch-frame events. This may be cleared by functions | |
389 | like Fselect_frame, to make sure that a switch-frame event is | |
390 | generated by the next character. */ | |
391 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
392 | |
393 | /* A user-visible version of the above, intended to allow users to | |
394 | figure out where the last event came from, if the event doesn't | |
395 | carry that information itself (i.e. if it was a character). */ | |
396 | Lisp_Object Vlast_event_frame; | |
397 | ||
1113d9db JB |
398 | /* The timestamp of the last input event we received from the X server. |
399 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
400 | unsigned long last_event_timestamp; |
401 | ||
402 | Lisp_Object Qself_insert_command; | |
403 | Lisp_Object Qforward_char; | |
404 | Lisp_Object Qbackward_char; | |
e58aa385 | 405 | Lisp_Object Qundefined; |
d925fb39 | 406 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
407 | |
408 | /* read_key_sequence stores here the command definition of the | |
409 | key sequence that it reads. */ | |
410 | Lisp_Object read_key_sequence_cmd; | |
411 | ||
39aab679 DL |
412 | /* Echo unfinished commands after this many seconds of pause. */ |
413 | Lisp_Object Vecho_keystrokes; | |
414 | ||
284f4730 JB |
415 | /* Form to evaluate (if non-nil) when Emacs is started. */ |
416 | Lisp_Object Vtop_level; | |
417 | ||
7d18f9ae RS |
418 | /* If non-nil, this implements the current input method. */ |
419 | Lisp_Object Vinput_method_function; | |
420 | Lisp_Object Qinput_method_function; | |
421 | ||
d5eecefb RS |
422 | /* When we call Vinput_method_function, |
423 | this holds the echo area message that was just erased. */ | |
424 | Lisp_Object Vinput_method_previous_message; | |
425 | ||
86e5706b RS |
426 | /* Non-nil means deactivate the mark at end of this command. */ |
427 | Lisp_Object Vdeactivate_mark; | |
428 | ||
48e416d4 RS |
429 | /* Menu bar specified in Lucid Emacs fashion. */ |
430 | ||
431 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
432 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
433 | ||
cf24f894 | 434 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 435 | |
86e5706b | 436 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
437 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
438 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 439 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
86e5706b | 440 | |
ac09dc1e KL |
441 | /* Parent keymap of terminal-local function-key-map instances. */ |
442 | Lisp_Object Vfunction_key_map; | |
443 | ||
4ea81208 | 444 | /* Parent keymap of terminal-local key-translation-map instances. */ |
ac09dc1e | 445 | Lisp_Object Vkey_translation_map; |
4ea81208 | 446 | |
8a792f3a RS |
447 | /* List of deferred actions to be performed at a later time. |
448 | The precise format isn't relevant here; we just check whether it is nil. */ | |
449 | Lisp_Object Vdeferred_action_list; | |
450 | ||
451 | /* Function to call to handle deferred actions, when there are any. */ | |
452 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 453 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 454 | |
d5eecefb RS |
455 | Lisp_Object Qinput_method_exit_on_first_char; |
456 | Lisp_Object Qinput_method_use_echo_area; | |
457 | ||
284f4730 JB |
458 | /* File in which we write all commands we read. */ |
459 | FILE *dribble; | |
460 | ||
461 | /* Nonzero if input is available. */ | |
462 | int input_pending; | |
463 | ||
284f4730 JB |
464 | extern char *pending_malloc_warning; |
465 | ||
beecf6a1 | 466 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 467 | |
beecf6a1 KH |
468 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
469 | ||
beecf6a1 KH |
470 | /* Pointer to next available character in kbd_buffer. |
471 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 472 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
473 | next available char is in kbd_buffer[0]. */ |
474 | static struct input_event *kbd_fetch_ptr; | |
475 | ||
476 | /* Pointer to next place to store character in kbd_buffer. This | |
477 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
478 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 479 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
480 | |
481 | /* The above pair of variables forms a "queue empty" flag. When we | |
482 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
483 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
484 | there is input available iff the two pointers are not equal. | |
485 | ||
486 | Why not just have a flag set and cleared by the enqueuing and | |
487 | dequeuing functions? Such a flag could be screwed up by interrupts | |
488 | at inopportune times. */ | |
489 | ||
f3253854 | 490 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
491 | mouse moves, and motion events will appear in the input stream. |
492 | Otherwise, mouse motion is ignored. */ | |
e10da507 | 493 | Lisp_Object do_mouse_tracking; |
284f4730 | 494 | |
284f4730 JB |
495 | /* Symbols to head events. */ |
496 | Lisp_Object Qmouse_movement; | |
3c370943 | 497 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 498 | Lisp_Object Qswitch_frame; |
bbdc2092 | 499 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
500 | Lisp_Object Qiconify_frame; |
501 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 502 | Lisp_Object Qselect_window; |
7ee32cda | 503 | Lisp_Object Qhelp_echo; |
cd21b839 | 504 | |
c22237f7 KS |
505 | #ifdef HAVE_MOUSE |
506 | Lisp_Object Qmouse_fixup_help_message; | |
507 | #endif | |
508 | ||
284f4730 JB |
509 | /* Symbols to denote kinds of events. */ |
510 | Lisp_Object Qfunction_key; | |
511 | Lisp_Object Qmouse_click; | |
c16dab62 | 512 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 | 513 | Lisp_Object Qlanguage_change; |
07de30b9 | 514 | #endif |
a24dc617 | 515 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 JD |
516 | Lisp_Object Qsave_session; |
517 | ||
284f4730 | 518 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
519 | |
520 | /* Properties of event headers. */ | |
521 | Lisp_Object Qevent_kind; | |
88cb0656 | 522 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 523 | |
e8886a1d RS |
524 | /* menu item parts */ |
525 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 526 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
527 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
528 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
529 | extern Lisp_Object Vdefine_key_rebound_commands; |
530 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 531 | |
0a7f1fc0 JB |
532 | /* An event header symbol HEAD may have a property named |
533 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
534 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
535 | mask of modifiers applied to it. If present, this is used to help | |
536 | speed up parse_modifiers. */ | |
537 | Lisp_Object Qevent_symbol_element_mask; | |
538 | ||
539 | /* An unmodified event header BASE may have a property named | |
540 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
541 | modified versions of BASE. If present, this helps speed up | |
542 | apply_modifiers. */ | |
543 | Lisp_Object Qmodifier_cache; | |
544 | ||
5ec75a55 | 545 | /* Symbols to use for parts of windows. */ |
284f4730 | 546 | Lisp_Object Qmode_line; |
e5d77022 | 547 | Lisp_Object Qvertical_line; |
3c370943 | 548 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 | 549 | Lisp_Object Qmenu_bar; |
7d60ad8a | 550 | extern Lisp_Object Qleft_margin, Qright_margin; |
3d566707 | 551 | extern Lisp_Object Qleft_fringe, Qright_fringe; |
2e3f0f61 | 552 | extern Lisp_Object QCmap; |
5ec75a55 | 553 | |
f4255cd1 JB |
554 | Lisp_Object recursive_edit_unwind (), command_loop (); |
555 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 556 | Lisp_Object Qextended_command_history; |
c04cbc3b | 557 | EMACS_TIME timer_check (); |
284f4730 | 558 | |
a0acc6c7 | 559 | extern Lisp_Object Vhistory_length, Vtranslation_table_for_input; |
f4385381 | 560 | |
2c834fb3 KH |
561 | extern char *x_get_keysym_name (); |
562 | ||
8eb4d8ef | 563 | static void record_menu_key (); |
22b94eeb | 564 | static int echo_length (); |
8eb4d8ef | 565 | |
f4eef8b4 RS |
566 | Lisp_Object Qpolling_period; |
567 | ||
d9d4c147 | 568 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
569 | Lisp_Object Vtimer_list; |
570 | ||
d9d4c147 KH |
571 | /* List of idle time timers. Appears in order of next scheduled event. */ |
572 | Lisp_Object Vtimer_idle_list; | |
573 | ||
87dd9b9b RS |
574 | /* Incremented whenever a timer is run. */ |
575 | int timers_run; | |
576 | ||
a9f16aa9 KH |
577 | extern Lisp_Object Vprint_level, Vprint_length; |
578 | ||
ffd56f97 JB |
579 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
580 | happens. */ | |
581 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
582 | |
583 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
584 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
585 | int interrupt_input; | |
586 | ||
587 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
588 | int interrupts_deferred; | |
589 | ||
284f4730 JB |
590 | /* Allow m- file to inhibit use of FIONREAD. */ |
591 | #ifdef BROKEN_FIONREAD | |
592 | #undef FIONREAD | |
593 | #endif | |
594 | ||
595 | /* We are unable to use interrupts if FIONREAD is not available, | |
596 | so flush SIGIO so we won't try. */ | |
fc7a70cc | 597 | #if !defined (FIONREAD) |
284f4730 JB |
598 | #ifdef SIGIO |
599 | #undef SIGIO | |
600 | #endif | |
601 | #endif | |
602 | ||
e98a93eb | 603 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 604 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 605 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
606 | #define POLL_FOR_INPUT |
607 | #endif | |
adf5cb9c KH |
608 | |
609 | /* After a command is executed, if point is moved into a region that | |
610 | has specific properties (e.g. composition, display), we adjust | |
611 | point to the boundary of the region. But, if a command sets this | |
27fd22dc | 612 | variable to non-nil, we suppress this point adjustment. This |
adf5cb9c | 613 | variable is set to nil before reading a command. */ |
da8f7368 | 614 | |
adf5cb9c KH |
615 | Lisp_Object Vdisable_point_adjustment; |
616 | ||
617 | /* If non-nil, always disable point adjustment. */ | |
da8f7368 | 618 | |
adf5cb9c KH |
619 | Lisp_Object Vglobal_disable_point_adjustment; |
620 | ||
fdbb67fe GM |
621 | /* The time when Emacs started being idle. */ |
622 | ||
623 | static EMACS_TIME timer_idleness_start_time; | |
624 | ||
3021d3a9 RS |
625 | /* After Emacs stops being idle, this saves the last value |
626 | of timer_idleness_start_time from when it was idle. */ | |
627 | ||
628 | static EMACS_TIME timer_last_idleness_start_time; | |
629 | ||
284f4730 JB |
630 | \f |
631 | /* Global variable declarations. */ | |
632 | ||
a2d5fca0 JD |
633 | /* Flags for readable_events. */ |
634 | #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0) | |
635 | #define READABLE_EVENTS_FILTER_EVENTS (1 << 1) | |
636 | #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2) | |
637 | ||
284f4730 JB |
638 | /* Function for init_keyboard to call with no args (if nonzero). */ |
639 | void (*keyboard_init_hook) (); | |
640 | ||
0bbfdc25 GM |
641 | static int read_avail_input P_ ((int)); |
642 | static void get_input_pending P_ ((int *, int)); | |
643 | static int readable_events P_ ((int)); | |
644 | static Lisp_Object read_char_x_menu_prompt P_ ((int, Lisp_Object *, | |
645 | Lisp_Object, int *)); | |
8150596a | 646 | static Lisp_Object read_char_x_menu_prompt (); |
0bbfdc25 GM |
647 | static Lisp_Object read_char_minibuf_menu_prompt P_ ((int, int, |
648 | Lisp_Object *)); | |
649 | static Lisp_Object make_lispy_event P_ ((struct input_event *)); | |
514354e9 | 650 | #ifdef HAVE_MOUSE |
0bbfdc25 GM |
651 | static Lisp_Object make_lispy_movement P_ ((struct frame *, Lisp_Object, |
652 | enum scroll_bar_part, | |
653 | Lisp_Object, Lisp_Object, | |
654 | unsigned long)); | |
514354e9 | 655 | #endif |
0bbfdc25 GM |
656 | static Lisp_Object modify_event_symbol P_ ((int, unsigned, Lisp_Object, |
657 | Lisp_Object, char **, | |
658 | Lisp_Object *, unsigned)); | |
659 | static Lisp_Object make_lispy_switch_frame P_ ((Lisp_Object)); | |
660 | static int parse_solitary_modifier P_ ((Lisp_Object)); | |
3d31316f | 661 | static int parse_solitary_modifier (); |
0bbfdc25 | 662 | static void save_getcjmp P_ ((jmp_buf)); |
dfcf069d | 663 | static void save_getcjmp (); |
0bbfdc25 | 664 | static void restore_getcjmp P_ ((jmp_buf)); |
7ee32cda | 665 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
0bbfdc25 | 666 | static void clear_event P_ ((struct input_event *)); |
9ce50b1e | 667 | static void any_kboard_state P_ ((void)); |
9148bda2 | 668 | static Lisp_Object restore_kboard_configuration P_ ((Lisp_Object)); |
5598c32e | 669 | static SIGTYPE interrupt_signal P_ ((int signalnum)); |
114a8b8c | 670 | static void handle_interrupt P_ ((void)); |
5c12e63f KS |
671 | static void timer_start_idle P_ ((void)); |
672 | static void timer_stop_idle P_ ((void)); | |
673 | static void timer_resume_idle P_ ((void)); | |
284f4730 | 674 | |
8026024c KH |
675 | /* Nonzero means don't try to suspend even if the operating system seems |
676 | to support it. */ | |
677 | static int cannot_suspend; | |
678 | ||
29204e13 RS |
679 | extern Lisp_Object Qidentity, Qonly; |
680 | \f | |
284f4730 JB |
681 | /* Install the string STR as the beginning of the string of echoing, |
682 | so that it serves as a prompt for the next character. | |
683 | Also start echoing. */ | |
684 | ||
dfcf069d | 685 | void |
284f4730 | 686 | echo_prompt (str) |
a4ef85ee | 687 | Lisp_Object str; |
284f4730 | 688 | { |
678e9d18 | 689 | current_kboard->echo_string = str; |
0d121f7c | 690 | current_kboard->echo_after_prompt = SCHARS (str); |
3dbd9ee4 | 691 | echo_now (); |
284f4730 JB |
692 | } |
693 | ||
df0f2ba1 | 694 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
695 | C can be a character, which is printed prettily ("M-C-x" and all that |
696 | jazz), or a symbol, whose name is printed. */ | |
697 | ||
dfcf069d | 698 | void |
284f4730 JB |
699 | echo_char (c) |
700 | Lisp_Object c; | |
701 | { | |
c5fdd383 | 702 | if (current_kboard->immediate_echo) |
284f4730 | 703 | { |
678e9d18 GM |
704 | int size = KEY_DESCRIPTION_SIZE + 100; |
705 | char *buffer = (char *) alloca (size); | |
706 | char *ptr = buffer; | |
707 | Lisp_Object echo_string; | |
284f4730 | 708 | |
0d121f7c | 709 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 710 | |
284f4730 | 711 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 712 | c = EVENT_HEAD (c); |
284f4730 | 713 | |
8c18cbfb | 714 | if (INTEGERP (c)) |
284f4730 | 715 | { |
678e9d18 | 716 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 717 | } |
8c18cbfb | 718 | else if (SYMBOLP (c)) |
284f4730 | 719 | { |
1b049b51 KR |
720 | Lisp_Object name = SYMBOL_NAME (c); |
721 | int nbytes = SBYTES (name); | |
c60ee5e7 | 722 | |
0d121f7c | 723 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
724 | { |
725 | int offset = ptr - buffer; | |
0d121f7c | 726 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
727 | buffer = (char *) alloca (size); |
728 | ptr = buffer + offset; | |
729 | } | |
730 | ||
1b049b51 KR |
731 | ptr += copy_text (SDATA (name), ptr, nbytes, |
732 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
733 | } |
734 | ||
0d121f7c | 735 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 736 | && help_char_p (c)) |
284f4730 | 737 | { |
678e9d18 GM |
738 | const char *text = " (Type ? for further options)"; |
739 | int len = strlen (text); | |
c60ee5e7 | 740 | |
678e9d18 GM |
741 | if (size - (ptr - buffer) < len) |
742 | { | |
743 | int offset = ptr - buffer; | |
744 | size += len; | |
745 | buffer = (char *) alloca (size); | |
746 | ptr = buffer + offset; | |
747 | } | |
748 | ||
749 | bcopy (text, ptr, len); | |
750 | ptr += len; | |
284f4730 JB |
751 | } |
752 | ||
0d121f7c GM |
753 | /* Replace a dash from echo_dash with a space, otherwise |
754 | add a space at the end as a separator between keys. */ | |
678e9d18 | 755 | if (STRINGP (echo_string) |
2ff4d3d9 | 756 | && SCHARS (echo_string) > 1) |
0d121f7c | 757 | { |
2ff4d3d9 RS |
758 | Lisp_Object last_char, prev_char, idx; |
759 | ||
760 | idx = make_number (SCHARS (echo_string) - 2); | |
761 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
762 | |
763 | idx = make_number (SCHARS (echo_string) - 1); | |
764 | last_char = Faref (echo_string, idx); | |
765 | ||
2ff4d3d9 RS |
766 | /* We test PREV_CHAR to make sure this isn't the echoing |
767 | of a minus-sign. */ | |
768 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
769 | Faset (echo_string, idx, make_number (' ')); |
770 | else | |
771 | echo_string = concat2 (echo_string, build_string (" ")); | |
772 | } | |
678e9d18 GM |
773 | |
774 | current_kboard->echo_string | |
775 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 776 | |
3dbd9ee4 | 777 | echo_now (); |
284f4730 JB |
778 | } |
779 | } | |
780 | ||
781 | /* Temporarily add a dash to the end of the echo string if it's not | |
782 | empty, so that it serves as a mini-prompt for the very next character. */ | |
783 | ||
dfcf069d | 784 | void |
284f4730 JB |
785 | echo_dash () |
786 | { | |
678e9d18 GM |
787 | /* Do nothing if not echoing at all. */ |
788 | if (NILP (current_kboard->echo_string)) | |
789 | return; | |
790 | ||
c5fdd383 | 791 | if (!current_kboard->immediate_echo |
0d121f7c | 792 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 793 | return; |
c60ee5e7 | 794 | |
7a80a6f6 | 795 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 796 | if (current_kboard->echo_after_prompt |
0d121f7c | 797 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 798 | return; |
c60ee5e7 | 799 | |
366511da MB |
800 | /* Do nothing if we have already put a dash at the end. */ |
801 | if (SCHARS (current_kboard->echo_string) > 1) | |
802 | { | |
803 | Lisp_Object last_char, prev_char, idx; | |
804 | ||
805 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); | |
806 | prev_char = Faref (current_kboard->echo_string, idx); | |
807 | ||
808 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); | |
809 | last_char = Faref (current_kboard->echo_string, idx); | |
810 | ||
811 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
812 | return; | |
813 | } | |
814 | ||
284f4730 JB |
815 | /* Put a dash at the end of the buffer temporarily, |
816 | but make it go away when the next character is added. */ | |
678e9d18 GM |
817 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
818 | build_string ("-")); | |
3dbd9ee4 | 819 | echo_now (); |
284f4730 JB |
820 | } |
821 | ||
822 | /* Display the current echo string, and begin echoing if not already | |
823 | doing so. */ | |
824 | ||
07a59269 | 825 | void |
3dbd9ee4 | 826 | echo_now () |
284f4730 | 827 | { |
c5fdd383 | 828 | if (!current_kboard->immediate_echo) |
284f4730 JB |
829 | { |
830 | int i; | |
c5fdd383 | 831 | current_kboard->immediate_echo = 1; |
284f4730 JB |
832 | |
833 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
834 | { |
835 | Lisp_Object c; | |
22b94eeb RS |
836 | |
837 | /* Set before_command_echo_length to the value that would | |
838 | have been saved before the start of this subcommand in | |
839 | command_loop_1, if we had already been echoing then. */ | |
840 | if (i == this_single_command_key_start) | |
841 | before_command_echo_length = echo_length (); | |
842 | ||
d0a57728 RS |
843 | c = XVECTOR (this_command_keys)->contents[i]; |
844 | if (! (EVENT_HAS_PARAMETERS (c) | |
845 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
846 | echo_char (c); | |
847 | } | |
22b94eeb RS |
848 | |
849 | /* Set before_command_echo_length to the value that would | |
850 | have been saved before the start of this subcommand in | |
851 | command_loop_1, if we had already been echoing then. */ | |
852 | if (this_command_key_count == this_single_command_key_start) | |
853 | before_command_echo_length = echo_length (); | |
854 | ||
855 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
856 | echo_dash (); |
857 | } | |
858 | ||
859 | echoing = 1; | |
678e9d18 | 860 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 861 | SBYTES (current_kboard->echo_string), |
d5db4077 | 862 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
863 | echoing = 0; |
864 | ||
59a84f8e GM |
865 | /* Record in what buffer we echoed, and from which kboard. */ |
866 | echo_message_buffer = echo_area_buffer[0]; | |
867 | echo_kboard = current_kboard; | |
868 | ||
284f4730 JB |
869 | if (waiting_for_input && !NILP (Vquit_flag)) |
870 | quit_throw_to_read_char (); | |
871 | } | |
872 | ||
873 | /* Turn off echoing, for the start of a new command. */ | |
874 | ||
dfcf069d | 875 | void |
284f4730 JB |
876 | cancel_echoing () |
877 | { | |
c5fdd383 | 878 | current_kboard->immediate_echo = 0; |
c5fdd383 | 879 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 880 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
881 | ok_to_echo_at_next_pause = NULL; |
882 | echo_kboard = NULL; | |
883 | echo_message_buffer = Qnil; | |
284f4730 JB |
884 | } |
885 | ||
886 | /* Return the length of the current echo string. */ | |
887 | ||
888 | static int | |
889 | echo_length () | |
890 | { | |
678e9d18 | 891 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 892 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 893 | : 0); |
284f4730 JB |
894 | } |
895 | ||
896 | /* Truncate the current echo message to its first LEN chars. | |
897 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 898 | switches frames while entering a key sequence. */ |
284f4730 JB |
899 | |
900 | static void | |
678e9d18 GM |
901 | echo_truncate (nchars) |
902 | int nchars; | |
903 | { | |
904 | if (STRINGP (current_kboard->echo_string)) | |
905 | current_kboard->echo_string | |
906 | = Fsubstring (current_kboard->echo_string, | |
907 | make_number (0), make_number (nchars)); | |
908 | truncate_echo_area (nchars); | |
284f4730 JB |
909 | } |
910 | ||
911 | \f | |
912 | /* Functions for manipulating this_command_keys. */ | |
913 | static void | |
914 | add_command_key (key) | |
915 | Lisp_Object key; | |
916 | { | |
22b94eeb RS |
917 | #if 0 /* Not needed after we made Freset_this_command_lengths |
918 | do the job immediately. */ | |
71918b75 RS |
919 | /* If reset-this-command-length was called recently, obey it now. |
920 | See the doc string of that function for an explanation of why. */ | |
921 | if (before_command_restore_flag) | |
922 | { | |
923 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
924 | if (this_command_key_count < this_single_command_key_start) |
925 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
926 | echo_truncate (before_command_echo_length_1); |
927 | before_command_restore_flag = 0; | |
928 | } | |
22b94eeb | 929 | #endif |
71918b75 | 930 | |
f4e05d97 GM |
931 | if (this_command_key_count >= ASIZE (this_command_keys)) |
932 | this_command_keys = larger_vector (this_command_keys, | |
933 | 2 * ASIZE (this_command_keys), | |
934 | Qnil); | |
6569cc8d | 935 | |
f4e05d97 GM |
936 | AREF (this_command_keys, this_command_key_count) = key; |
937 | ++this_command_key_count; | |
284f4730 | 938 | } |
f4e05d97 | 939 | |
284f4730 JB |
940 | \f |
941 | Lisp_Object | |
942 | recursive_edit_1 () | |
943 | { | |
aed13378 | 944 | int count = SPECPDL_INDEX (); |
284f4730 JB |
945 | Lisp_Object val; |
946 | ||
947 | if (command_loop_level > 0) | |
948 | { | |
949 | specbind (Qstandard_output, Qt); | |
950 | specbind (Qstandard_input, Qt); | |
951 | } | |
952 | ||
84265027 | 953 | #ifdef HAVE_X_WINDOWS |
526a058f | 954 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 955 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
956 | can take some time. Do not check for display_hourglass_p here, |
957 | because it could already be nil. */ | |
526a058f | 958 | cancel_hourglass (); |
84265027 GM |
959 | #endif |
960 | ||
980a2d69 GM |
961 | /* This function may have been called from a debugger called from |
962 | within redisplay, for instance by Edebugging a function called | |
963 | from fontification-functions. We want to allow redisplay in | |
964 | the debugging session. | |
965 | ||
966 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
967 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
968 | recursive edit, the original redisplay leading to the recursive | |
969 | edit will be unwound. The outcome should therefore be safe. */ | |
970 | specbind (Qinhibit_redisplay, Qnil); | |
971 | redisplaying_p = 0; | |
972 | ||
284f4730 JB |
973 | val = command_loop (); |
974 | if (EQ (val, Qt)) | |
975 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
976 | /* Handle throw from read_minibuf when using minibuffer |
977 | while it's active but we're in another window. */ | |
978 | if (STRINGP (val)) | |
979 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 980 | |
cb5df6ae | 981 | return unbind_to (count, Qnil); |
284f4730 JB |
982 | } |
983 | ||
984 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 985 | |
07a59269 | 986 | void |
284f4730 JB |
987 | record_auto_save () |
988 | { | |
c43b1734 | 989 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 990 | } |
5846638c RS |
991 | |
992 | /* Make an auto save happen as soon as possible at command level. */ | |
993 | ||
dfcf069d | 994 | void |
5846638c RS |
995 | force_auto_save_soon () |
996 | { | |
997 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
998 | |
999 | record_asynch_buffer_change (); | |
5846638c | 1000 | } |
284f4730 | 1001 | \f |
284f4730 | 1002 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
1003 | doc: /* Invoke the editor command loop recursively. |
1004 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
1005 | that tells this function to return. | |
6e604a9b | 1006 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 PJ |
1007 | This function is called by the editor initialization to begin editing. */) |
1008 | () | |
284f4730 | 1009 | { |
aed13378 | 1010 | int count = SPECPDL_INDEX (); |
9ce50b1e | 1011 | Lisp_Object buffer; |
284f4730 | 1012 | |
96edd5d4 KS |
1013 | /* If we enter while input is blocked, don't lock up here. |
1014 | This may happen through the debugger during redisplay. */ | |
1015 | if (INPUT_BLOCKED_P) | |
1016 | return Qnil; | |
1017 | ||
284f4730 JB |
1018 | command_loop_level++; |
1019 | update_mode_lines = 1; | |
1020 | ||
9ce50b1e GM |
1021 | if (command_loop_level |
1022 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
1023 | buffer = Fcurrent_buffer (); | |
1024 | else | |
1025 | buffer = Qnil; | |
1026 | ||
1027 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
1028 | like it is done in the splash screen display, we have to | |
1029 | make sure that we restore single_kboard as command_loop_1 | |
1030 | would have done if it were left normally. */ | |
256c9c3a KL |
1031 | temporarily_switch_to_single_kboard (FRAME_KBOARD (SELECTED_FRAME ())); |
1032 | record_unwind_protect (recursive_edit_unwind, buffer); | |
9ce50b1e | 1033 | |
284f4730 JB |
1034 | recursive_edit_1 (); |
1035 | return unbind_to (count, Qnil); | |
1036 | } | |
1037 | ||
1038 | Lisp_Object | |
256c9c3a KL |
1039 | recursive_edit_unwind (buffer) |
1040 | Lisp_Object buffer; | |
284f4730 | 1041 | { |
256c9c3a KL |
1042 | if (BUFFERP (buffer)) |
1043 | Fset_buffer (buffer); | |
c60ee5e7 | 1044 | |
284f4730 JB |
1045 | command_loop_level--; |
1046 | update_mode_lines = 1; | |
1047 | return Qnil; | |
1048 | } | |
9ce50b1e | 1049 | |
284f4730 | 1050 | \f |
604ccd1d | 1051 | static void |
1e8bd3da | 1052 | any_kboard_state () |
604ccd1d | 1053 | { |
1e8bd3da RS |
1054 | #ifdef MULTI_KBOARD |
1055 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
1056 | it will right away be read by read_key_sequence, | |
1057 | and then if we do switch KBOARDS, it will go into the side | |
1058 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 1059 | if (CONSP (Vunread_command_events)) |
4524b161 | 1060 | { |
c5fdd383 KH |
1061 | current_kboard->kbd_queue |
1062 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
1063 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 1064 | } |
604ccd1d | 1065 | Vunread_command_events = Qnil; |
1e8bd3da RS |
1066 | #endif |
1067 | single_kboard = 0; | |
1068 | #endif | |
604ccd1d | 1069 | } |
1e8bd3da RS |
1070 | |
1071 | /* Switch to the single-kboard state, making current_kboard | |
1072 | the only KBOARD from which further input is accepted. */ | |
1073 | ||
1074 | void | |
1075 | single_kboard_state () | |
1076 | { | |
1077 | #ifdef MULTI_KBOARD | |
1078 | single_kboard = 1; | |
604ccd1d | 1079 | #endif |
1e8bd3da RS |
1080 | } |
1081 | ||
0c1c1b93 RS |
1082 | /* If we're in single_kboard state for kboard KBOARD, |
1083 | get out of it. */ | |
1084 | ||
1085 | void | |
1086 | not_single_kboard_state (kboard) | |
1087 | KBOARD *kboard; | |
1088 | { | |
26503ad2 | 1089 | #ifdef MULTI_KBOARD |
0c1c1b93 RS |
1090 | if (kboard == current_kboard) |
1091 | single_kboard = 0; | |
26503ad2 | 1092 | #endif |
0c1c1b93 RS |
1093 | } |
1094 | ||
1e8bd3da RS |
1095 | /* Maintain a stack of kboards, so other parts of Emacs |
1096 | can switch temporarily to the kboard of a given frame | |
1097 | and then revert to the previous status. */ | |
1098 | ||
1099 | struct kboard_stack | |
1100 | { | |
1101 | KBOARD *kboard; | |
1102 | struct kboard_stack *next; | |
1103 | }; | |
1104 | ||
1105 | static struct kboard_stack *kboard_stack; | |
1106 | ||
e589efa5 | 1107 | void |
256c9c3a KL |
1108 | push_kboard (k) |
1109 | struct kboard *k; | |
e589efa5 KL |
1110 | { |
1111 | #ifdef MULTI_KBOARD | |
1112 | struct kboard_stack *p | |
1113 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
1114 | ||
1115 | p->next = kboard_stack; | |
1116 | p->kboard = current_kboard; | |
1117 | kboard_stack = p; | |
1118 | ||
256c9c3a | 1119 | current_kboard = k; |
e589efa5 KL |
1120 | #endif |
1121 | } | |
1122 | ||
1e8bd3da RS |
1123 | void |
1124 | push_frame_kboard (f) | |
1125 | FRAME_PTR f; | |
1126 | { | |
256c9c3a | 1127 | push_kboard (f->device->kboard); |
1e8bd3da RS |
1128 | } |
1129 | ||
1130 | void | |
256c9c3a | 1131 | pop_kboard () |
1e8bd3da | 1132 | { |
ab48365b | 1133 | #ifdef MULTI_KBOARD |
3fb8e5d7 | 1134 | struct device *d; |
1e8bd3da | 1135 | struct kboard_stack *p = kboard_stack; |
3fb8e5d7 KL |
1136 | int ok = 0; |
1137 | current_kboard = NULL; | |
1138 | for (d = device_list; d; d = d->next_device) | |
1139 | { | |
1140 | if (d->kboard == p->kboard) | |
1141 | { | |
1142 | current_kboard = p->kboard; | |
1143 | break; | |
1144 | } | |
1145 | } | |
1146 | if (current_kboard == NULL) | |
1147 | { | |
1148 | /* The display we remembered has been deleted. */ | |
1149 | current_kboard = FRAME_KBOARD (SELECTED_FRAME ()); | |
1150 | } | |
1e8bd3da RS |
1151 | kboard_stack = p->next; |
1152 | xfree (p); | |
ab48365b | 1153 | #endif |
1e8bd3da | 1154 | } |
256c9c3a KL |
1155 | |
1156 | /* Switch to single_kboard mode. If K is non-nil, set it as the | |
1157 | current keyboard. Use record_unwind_protect to return to the | |
1158 | previous state later. */ | |
1159 | ||
1160 | void | |
1161 | temporarily_switch_to_single_kboard (k) | |
1162 | struct kboard *k; | |
1163 | { | |
1164 | #ifdef MULTI_KBOARD | |
1165 | int was_locked = single_kboard; | |
1166 | if (k != NULL) | |
1167 | push_kboard (k); | |
1168 | else | |
1169 | push_kboard (current_kboard); | |
1170 | single_kboard_state (); | |
1171 | record_unwind_protect (restore_kboard_configuration, | |
1172 | (was_locked ? Qt : Qnil)); | |
1173 | #endif | |
1174 | } | |
1175 | ||
1176 | void | |
1177 | record_single_kboard_state () | |
1178 | { | |
1179 | push_kboard (current_kboard); | |
1180 | record_unwind_protect (restore_kboard_configuration, | |
1181 | (single_kboard ? Qt : Qnil)); | |
1182 | } | |
1183 | ||
1184 | static Lisp_Object | |
1185 | restore_kboard_configuration (was_locked) | |
1186 | Lisp_Object was_locked; | |
1187 | { | |
256c9c3a KL |
1188 | if (NILP (was_locked)) |
1189 | any_kboard_state (); | |
1190 | else | |
1191 | single_kboard_state (); | |
3fb8e5d7 | 1192 | pop_kboard (); |
256c9c3a KL |
1193 | return Qnil; |
1194 | } | |
1e8bd3da RS |
1195 | \f |
1196 | /* Handle errors that are not handled at inner levels | |
1197 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 1198 | |
284f4730 JB |
1199 | Lisp_Object |
1200 | cmd_error (data) | |
1201 | Lisp_Object data; | |
a1341f75 | 1202 | { |
a9f16aa9 | 1203 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
1204 | char macroerror[50]; |
1205 | ||
160552c5 RS |
1206 | #ifdef HAVE_X_WINDOWS |
1207 | if (display_hourglass_p) | |
1208 | cancel_hourglass (); | |
1209 | #endif | |
1210 | ||
649d952d | 1211 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 1212 | { |
649d952d | 1213 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
1214 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
1215 | else | |
1216 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 1217 | executing_kbd_macro_iterations); |
e881d8b2 RS |
1218 | } |
1219 | else | |
1220 | *macroerror = 0; | |
a9f16aa9 | 1221 | |
a1341f75 RS |
1222 | Vstandard_output = Qt; |
1223 | Vstandard_input = Qt; | |
ce0d2858 | 1224 | Vexecuting_kbd_macro = Qnil; |
649d952d | 1225 | executing_kbd_macro = Qnil; |
d8bcf58e | 1226 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1227 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1228 | cancel_echoing (); |
a9f16aa9 KH |
1229 | |
1230 | /* Avoid unquittable loop if data contains a circular list. */ | |
1231 | old_level = Vprint_level; | |
1232 | old_length = Vprint_length; | |
0c04a67e RS |
1233 | XSETFASTINT (Vprint_level, 10); |
1234 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1235 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1236 | Vprint_level = old_level; |
1237 | Vprint_length = old_length; | |
a1341f75 RS |
1238 | |
1239 | Vquit_flag = Qnil; | |
1240 | ||
1241 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1242 | #ifdef MULTI_KBOARD |
e3ee34f0 RS |
1243 | if (command_loop_level == 0 && minibuf_level == 0) |
1244 | any_kboard_state (); | |
ff4b06d3 | 1245 | #endif |
a1341f75 RS |
1246 | |
1247 | return make_number (0); | |
1248 | } | |
1249 | ||
301738ed RS |
1250 | /* Take actions on handling an error. DATA is the data that describes |
1251 | the error. | |
1252 | ||
1253 | CONTEXT is a C-string containing ASCII characters only which | |
1254 | describes the context in which the error happened. If we need to | |
1255 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1256 | string. */ | |
1257 | ||
07a59269 | 1258 | void |
a1341f75 RS |
1259 | cmd_error_internal (data, context) |
1260 | Lisp_Object data; | |
1261 | char *context; | |
284f4730 | 1262 | { |
284f4730 | 1263 | Lisp_Object stream; |
7ee32cda | 1264 | int kill_emacs_p = 0; |
788f89eb | 1265 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1266 | |
1267 | Vquit_flag = Qnil; | |
1268 | Vinhibit_quit = Qt; | |
985f9f66 | 1269 | clear_message (1, 0); |
284f4730 | 1270 | |
ff11dfa1 | 1271 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1272 | yet, or we're not interactive, it's best to dump this message out |
1273 | to stderr and exit. */ | |
788f89eb | 1274 | if (!sf->glyphs_initialized_p |
114a8b8c | 1275 | || FRAME_INITIAL_P (sf) |
284f4730 | 1276 | || noninteractive) |
7ee32cda GM |
1277 | { |
1278 | stream = Qexternal_debugging_output; | |
1279 | kill_emacs_p = 1; | |
1280 | } | |
284f4730 JB |
1281 | else |
1282 | { | |
1283 | Fdiscard_input (); | |
dc4854ce | 1284 | message_log_maybe_newline (); |
284f4730 JB |
1285 | bitch_at_user (); |
1286 | stream = Qt; | |
1287 | } | |
1288 | ||
dc4854ce RS |
1289 | /* The immediate context is not interesting for Quits, |
1290 | since they are asyncronous. */ | |
1291 | if (EQ (XCAR (data), Qquit)) | |
1292 | Vsignaling_function = Qnil; | |
c60ee5e7 | 1293 | |
dc4854ce | 1294 | print_error_message (data, stream, context, Vsignaling_function); |
a1341f75 | 1295 | |
dc4854ce | 1296 | Vsignaling_function = Qnil; |
284f4730 | 1297 | |
ff11dfa1 | 1298 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1299 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1300 | if (kill_emacs_p) |
284f4730 JB |
1301 | { |
1302 | Fterpri (stream); | |
1303 | Fkill_emacs (make_number (-1)); | |
1304 | } | |
284f4730 JB |
1305 | } |
1306 | \f | |
1307 | Lisp_Object command_loop_1 (); | |
1308 | Lisp_Object command_loop_2 (); | |
1309 | Lisp_Object top_level_1 (); | |
1310 | ||
1311 | /* Entry to editor-command-loop. | |
1312 | This level has the catches for exiting/returning to editor command loop. | |
1313 | It returns nil to exit recursive edit, t to abort it. */ | |
1314 | ||
1315 | Lisp_Object | |
1316 | command_loop () | |
1317 | { | |
1318 | if (command_loop_level > 0 || minibuf_level > 0) | |
1319 | { | |
07ba902e RS |
1320 | Lisp_Object val; |
1321 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1322 | executing_kbd_macro = Qnil; |
68c46464 | 1323 | return val; |
284f4730 JB |
1324 | } |
1325 | else | |
1326 | while (1) | |
1327 | { | |
1328 | internal_catch (Qtop_level, top_level_1, Qnil); | |
c98e2d50 KL |
1329 | /* Reset single_kboard in case top-level set it while |
1330 | evaluating an -f option, or we are stuck there for some | |
1331 | other reason. */ | |
1332 | any_kboard_state (); | |
284f4730 | 1333 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1334 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1335 | |
284f4730 JB |
1336 | /* End of file in -batch run causes exit here. */ |
1337 | if (noninteractive) | |
1338 | Fkill_emacs (Qt); | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | /* Here we catch errors in execution of commands within the | |
1343 | editing loop, and reenter the editing loop. | |
1344 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1345 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1346 | returned due to end of file (or end of kbd macro). */ |
1347 | ||
1348 | Lisp_Object | |
1349 | command_loop_2 () | |
1350 | { | |
1351 | register Lisp_Object val; | |
1352 | ||
1353 | do | |
1354 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1355 | while (!NILP (val)); | |
1356 | ||
1357 | return Qnil; | |
1358 | } | |
1359 | ||
1360 | Lisp_Object | |
1361 | top_level_2 () | |
1362 | { | |
1363 | return Feval (Vtop_level); | |
1364 | } | |
1365 | ||
1366 | Lisp_Object | |
1367 | top_level_1 () | |
1368 | { | |
1369 | /* On entry to the outer level, run the startup file */ | |
1370 | if (!NILP (Vtop_level)) | |
1371 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1372 | else if (!NILP (Vpurify_flag)) | |
1373 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1374 | else | |
1375 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1376 | return Qnil; | |
1377 | } | |
1378 | ||
1379 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
4707d2d0 PJ |
1380 | doc: /* Exit all recursive editing levels. */) |
1381 | () | |
284f4730 | 1382 | { |
2c9cf2c8 | 1383 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
1384 | if (display_hourglass_p) |
1385 | cancel_hourglass (); | |
2c9cf2c8 | 1386 | #endif |
96edd5d4 | 1387 | |
a25e44b2 JD |
1388 | /* Unblock input if we enter with input blocked. This may happen if |
1389 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1390 | while (INPUT_BLOCKED_P) | |
1391 | UNBLOCK_INPUT; | |
1392 | ||
8c907a56 | 1393 | return Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1394 | } |
1395 | ||
1396 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1397 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
1398 | () | |
284f4730 JB |
1399 | { |
1400 | if (command_loop_level > 0 || minibuf_level > 0) | |
1401 | Fthrow (Qexit, Qnil); | |
1402 | ||
1403 | error ("No recursive edit is in progress"); | |
8c907a56 | 1404 | return Qnil; |
284f4730 JB |
1405 | } |
1406 | ||
1407 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 PJ |
1408 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
1409 | () | |
284f4730 JB |
1410 | { |
1411 | if (command_loop_level > 0 || minibuf_level > 0) | |
1412 | Fthrow (Qexit, Qt); | |
1413 | ||
1414 | error ("No recursive edit is in progress"); | |
8c907a56 | 1415 | return Qnil; |
284f4730 JB |
1416 | } |
1417 | \f | |
1418 | /* This is the actual command reading loop, | |
1419 | sans error-handling encapsulation. */ | |
1420 | ||
a7b772c1 GM |
1421 | static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object, |
1422 | int, int, int)); | |
1423 | void safe_run_hooks P_ ((Lisp_Object)); | |
2a026b04 | 1424 | static void adjust_point_for_property P_ ((int, int)); |
284f4730 | 1425 | |
0af912f0 JD |
1426 | /* Cancel hourglass from protect_unwind. |
1427 | ARG is not used. */ | |
bb8db7e1 | 1428 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1429 | static Lisp_Object |
1430 | cancel_hourglass_unwind (arg) | |
1431 | Lisp_Object arg; | |
1432 | { | |
1433 | cancel_hourglass (); | |
e581a466 | 1434 | return Qnil; |
0af912f0 | 1435 | } |
bb8db7e1 | 1436 | #endif |
0af912f0 | 1437 | |
284f4730 JB |
1438 | Lisp_Object |
1439 | command_loop_1 () | |
1440 | { | |
03cee6ae GM |
1441 | Lisp_Object cmd; |
1442 | int lose; | |
284f4730 JB |
1443 | int nonundocount; |
1444 | Lisp_Object keybuf[30]; | |
1445 | int i; | |
284f4730 | 1446 | int no_direct; |
80d4c824 | 1447 | int prev_modiff = 0; |
8c907a56 | 1448 | struct buffer *prev_buffer = NULL; |
c5fdd383 | 1449 | #ifdef MULTI_KBOARD |
1e8bd3da | 1450 | int was_locked = single_kboard; |
bded54dd | 1451 | #endif |
80d4c824 | 1452 | int already_adjusted = 0; |
284f4730 | 1453 | |
d9b641bb | 1454 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1455 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1456 | Vdeactivate_mark = Qnil; |
284f4730 | 1457 | waiting_for_input = 0; |
df0f2ba1 | 1458 | cancel_echoing (); |
284f4730 | 1459 | |
284f4730 | 1460 | nonundocount = 0; |
284f4730 | 1461 | this_command_key_count = 0; |
63020c46 | 1462 | this_command_key_count_reset = 0; |
6321824f | 1463 | this_single_command_key_start = 0; |
284f4730 | 1464 | |
325309f5 | 1465 | if (NILP (Vmemory_full)) |
59aadc81 | 1466 | { |
10ffcb64 RS |
1467 | /* Make sure this hook runs after commands that get errors and |
1468 | throw to top level. */ | |
1469 | /* Note that the value cell will never directly contain nil | |
1470 | if the symbol is a local variable. */ | |
1471 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1472 | safe_run_hooks (Qpost_command_hook); | |
1473 | ||
1474 | /* If displaying a message, resize the echo area window to fit | |
1475 | that message's size exactly. */ | |
1476 | if (!NILP (echo_area_buffer[0])) | |
1477 | resize_echo_area_exactly (); | |
1478 | ||
1479 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1480 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1481 | } |
1482 | ||
10ffcb64 RS |
1483 | Vmemory_full = Qnil; |
1484 | ||
51d5a2c9 | 1485 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1486 | current_kboard->Vlast_command = Vthis_command; |
1487 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1488 | |
284f4730 JB |
1489 | while (1) |
1490 | { | |
788f89eb | 1491 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1492 | Fkill_emacs (Qnil); |
1493 | ||
284f4730 JB |
1494 | /* Make sure the current window's buffer is selected. */ |
1495 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1496 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1497 | ||
1498 | /* Display any malloc warning that just came out. Use while because | |
1499 | displaying one warning can cause another. */ | |
1500 | ||
1501 | while (pending_malloc_warning) | |
1502 | display_malloc_warning (); | |
1503 | ||
1504 | no_direct = 0; | |
1505 | ||
86e5706b RS |
1506 | Vdeactivate_mark = Qnil; |
1507 | ||
284f4730 | 1508 | /* If minibuffer on and echo area in use, |
00392ce6 | 1509 | wait a short time and redraw minibuffer. */ |
284f4730 | 1510 | |
7ee32cda | 1511 | if (minibuf_level |
985f9f66 | 1512 | && !NILP (echo_area_buffer[0]) |
00392ce6 MB |
1513 | && EQ (minibuf_window, echo_area_window) |
1514 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1515 | { |
f1bed6d8 RS |
1516 | /* Bind inhibit-quit to t so that C-g gets read in |
1517 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1518 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1519 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1520 | |
00392ce6 | 1521 | Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil); |
e6aa7813 | 1522 | /* Clear the echo area. */ |
301738ed | 1523 | message2 (0, 0, 0); |
cdb9d665 | 1524 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1525 | |
db08707d RS |
1526 | unbind_to (count, Qnil); |
1527 | ||
e6aa7813 | 1528 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1529 | if (!NILP (Vquit_flag)) |
1530 | { | |
1531 | Vquit_flag = Qnil; | |
24597608 | 1532 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1533 | } |
1534 | } | |
1535 | ||
1536 | #ifdef C_ALLOCA | |
ff4b06d3 | 1537 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1538 | /* Since we can free the most stuff here. */ |
1539 | #endif /* C_ALLOCA */ | |
1540 | ||
8f805655 | 1541 | #if 0 |
8f805655 JB |
1542 | /* Select the frame that the last event came from. Usually, |
1543 | switch-frame events will take care of this, but if some lisp | |
1544 | code swallows a switch-frame event, we'll fix things up here. | |
1545 | Is this a good idea? */ | |
8c18cbfb | 1546 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1547 | && !EQ (internal_last_event_frame, selected_frame)) |
f840fb39 | 1548 | Fselect_frame (internal_last_event_frame); |
284f4730 | 1549 | #endif |
48e416d4 RS |
1550 | /* If it has changed current-menubar from previous value, |
1551 | really recompute the menubar from the value. */ | |
a646e520 RS |
1552 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1553 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1554 | call0 (Qrecompute_lucid_menubar); |
1555 | ||
71918b75 RS |
1556 | before_command_key_count = this_command_key_count; |
1557 | before_command_echo_length = echo_length (); | |
1558 | ||
d5eecefb RS |
1559 | Vthis_command = Qnil; |
1560 | real_this_command = Qnil; | |
9d138659 | 1561 | Vthis_original_command = Qnil; |
d7437ef6 | 1562 | |
8f805655 | 1563 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1564 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1565 | Qnil, 0, 1, 1); |
8f805655 | 1566 | |
6fac1409 | 1567 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1568 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1569 | Fkill_emacs (Qnil); |
6fac1409 RS |
1570 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1571 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1572 | ||
8f805655 JB |
1573 | ++num_input_keys; |
1574 | ||
284f4730 JB |
1575 | /* Now we have read a key sequence of length I, |
1576 | or else I is 0 and we found end of file. */ | |
1577 | ||
1578 | if (i == 0) /* End of file -- happens only in */ | |
1579 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1580 | /* -1 means read_key_sequence got a menu that was rejected. |
1581 | Just loop around and read another command. */ | |
1582 | if (i == -1) | |
1583 | { | |
1584 | cancel_echoing (); | |
1585 | this_command_key_count = 0; | |
63020c46 | 1586 | this_command_key_count_reset = 0; |
6321824f | 1587 | this_single_command_key_start = 0; |
ff4b06d3 | 1588 | goto finalize; |
dcc408a0 | 1589 | } |
284f4730 | 1590 | |
284f4730 JB |
1591 | last_command_char = keybuf[i - 1]; |
1592 | ||
75c0b143 RS |
1593 | /* If the previous command tried to force a specific window-start, |
1594 | forget about that, in case this command moves point far away | |
c422836d KH |
1595 | from that position. But also throw away beg_unchanged and |
1596 | end_unchanged information in that case, so that redisplay will | |
1597 | update the whole window properly. */ | |
1598 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1599 | { | |
9351ebd0 | 1600 | struct buffer *b; |
c422836d | 1601 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1602 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1603 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1604 | } |
75c0b143 | 1605 | |
284f4730 | 1606 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1607 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1608 | { |
1609 | if (!NILP (Vquit_flag)) | |
1610 | { | |
ce0d2858 | 1611 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1612 | QUIT; /* Make some noise. */ |
1613 | /* Will return since macro now empty. */ | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1618 | cases identified below. */ |
86e5706b RS |
1619 | prev_buffer = current_buffer; |
1620 | prev_modiff = MODIFF; | |
8746da95 | 1621 | last_point_position = PT; |
18cd2eeb | 1622 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1623 | |
adf5cb9c KH |
1624 | /* By default, we adjust point to a boundary of a region that |
1625 | has such a property that should be treated intangible | |
1626 | (e.g. composition, display). But, some commands will set | |
1627 | this variable differently. */ | |
1628 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1629 | |
be2488ca GM |
1630 | /* Process filters and timers may have messed with deactivate-mark. |
1631 | reset it before we execute the command. */ | |
1632 | Vdeactivate_mark = Qnil; | |
1633 | ||
8b9940e6 KS |
1634 | /* Remap command through active keymaps */ |
1635 | Vthis_original_command = cmd; | |
a34cb674 | 1636 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1637 | { |
1638 | Lisp_Object cmd1; | |
023b93f6 | 1639 | if (cmd1 = Fcommand_remapping (cmd), !NILP (cmd1)) |
8b9940e6 KS |
1640 | cmd = cmd1; |
1641 | } | |
1642 | ||
284f4730 JB |
1643 | /* Execute the command. */ |
1644 | ||
d5eecefb RS |
1645 | Vthis_command = cmd; |
1646 | real_this_command = cmd; | |
a98ea3f9 RS |
1647 | /* Note that the value cell will never directly contain nil |
1648 | if the symbol is a local variable. */ | |
e98a93eb | 1649 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1650 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1651 | |
2764bebd RS |
1652 | already_adjusted = 0; |
1653 | ||
d5eecefb | 1654 | if (NILP (Vthis_command)) |
284f4730 JB |
1655 | { |
1656 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1657 | Lisp_Object keys = Fvector (i, keybuf); |
1658 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1659 | bitch_at_user (); |
1bf0e604 | 1660 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1661 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1662 | update_mode_lines = 1; |
d8bcf58e | 1663 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1664 | } |
1665 | else | |
1666 | { | |
d8bcf58e | 1667 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1668 | { |
75045dcb RS |
1669 | /* In case we jump to directly_done. */ |
1670 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1671 | ||
284f4730 JB |
1672 | /* Recognize some common commands in common situations and |
1673 | do them directly. */ | |
d5eecefb | 1674 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1675 | { |
51ad8a68 | 1676 | struct Lisp_Char_Table *dp |
284f4730 | 1677 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1678 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1679 | SET_PT (PT + 1); |
d86ba5c5 RS |
1680 | if (! NILP (Vpost_command_hook)) |
1681 | /* Put this before calling adjust_point_for_property | |
1682 | so it will only get called once in any case. */ | |
1683 | goto directly_done; | |
22b94eeb RS |
1684 | if (current_buffer == prev_buffer |
1685 | && last_point_position != PT | |
1686 | && NILP (Vdisable_point_adjustment) | |
1687 | && NILP (Vglobal_disable_point_adjustment)) | |
1688 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1689 | already_adjusted = 1; |
1690 | if (PT == last_point_position + 1 | |
1691 | && (dp | |
1692 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1693 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1694 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1695 | && (lose >= 0x20 && lose < 0x7f))) | |
1696 | : (lose >= 0x20 && lose < 0x7f)) | |
37cd9f30 KH |
1697 | /* To extract the case of continuation on |
1698 | wide-column characters. */ | |
8458ede6 | 1699 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
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, Qbackward_char) && PT > BEGV) |
284f4730 | 1715 | { |
51ad8a68 | 1716 | struct Lisp_Char_Table *dp |
284f4730 | 1717 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1718 | SET_PT (PT - 1); |
aaf35234 | 1719 | lose = FETCH_CHAR (PT_BYTE); |
d86ba5c5 RS |
1720 | if (! NILP (Vpost_command_hook)) |
1721 | goto directly_done; | |
22b94eeb RS |
1722 | if (current_buffer == prev_buffer |
1723 | && last_point_position != PT | |
1724 | && NILP (Vdisable_point_adjustment) | |
1725 | && NILP (Vglobal_disable_point_adjustment)) | |
1726 | adjust_point_for_property (last_point_position, 0); | |
2764bebd RS |
1727 | already_adjusted = 1; |
1728 | if (PT == last_point_position - 1 | |
1729 | && (dp | |
1730 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) | |
1731 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 | |
1732 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1733 | && (lose >= 0x20 && lose < 0x7f))) | |
1734 | : (lose >= 0x20 && lose < 0x7f)) | |
284f4730 JB |
1735 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1736 | >= MODIFF) | |
598ba4c7 RS |
1737 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1738 | >= OVERLAY_MODIFF) | |
284f4730 | 1739 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1740 | == PT + 1) |
284f4730 JB |
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)) |
e35b6123 | 1746 | direct_output_forward_char (-1); |
284f4730 JB |
1747 | goto directly_done; |
1748 | } | |
d5eecefb | 1749 | else if (EQ (Vthis_command, Qself_insert_command) |
14e40288 SM |
1750 | /* Try this optimization only on char keystrokes. */ |
1751 | && NATNUMP (last_command_char) | |
1752 | && CHAR_VALID_P (XFASTINT (last_command_char), 0)) | |
284f4730 | 1753 | { |
d86ba5c5 RS |
1754 | unsigned int c |
1755 | = translate_char (Vtranslation_table_for_input, | |
1756 | XFASTINT (last_command_char), 0, 0, 0); | |
fc9cce4e | 1757 | int value; |
ce0d2858 | 1758 | if (NILP (Vexecuting_kbd_macro) |
fc9cce4e | 1759 | && !EQ (minibuf_window, selected_window)) |
284f4730 JB |
1760 | { |
1761 | if (!nonundocount || nonundocount >= 20) | |
1762 | { | |
1763 | Fundo_boundary (); | |
1764 | nonundocount = 0; | |
1765 | } | |
1766 | nonundocount++; | |
1767 | } | |
c60ee5e7 | 1768 | |
fc9cce4e RS |
1769 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1770 | < MODIFF) | |
598ba4c7 RS |
1771 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1772 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1773 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1774 | != PT) | |
4c61f38e | 1775 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1776 | || windows_or_buffers_changed |
1777 | || !EQ (current_buffer->selective_display, Qnil) | |
1778 | || detect_input_pending () | |
962ae636 | 1779 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
ce0d2858 | 1780 | || !NILP (Vexecuting_kbd_macro)); |
c60ee5e7 | 1781 | |
fc9cce4e | 1782 | value = internal_self_insert (c, 0); |
7ee32cda | 1783 | |
fc9cce4e RS |
1784 | if (value == 2) |
1785 | nonundocount = 0; | |
1786 | ||
294d643a RS |
1787 | if (! NILP (Vpost_command_hook)) |
1788 | /* Put this before calling adjust_point_for_property | |
1789 | so it will only get called once in any case. */ | |
1790 | goto directly_done; | |
1791 | ||
7ee32cda GM |
1792 | /* VALUE == 1 when AFTER-CHANGE functions are |
1793 | installed which is the case most of the time | |
1794 | because FONT-LOCK installs one. */ | |
1795 | if (!lose && !value) | |
e35b6123 | 1796 | direct_output_for_insert (c); |
284f4730 JB |
1797 | goto directly_done; |
1798 | } | |
1799 | } | |
1800 | ||
1801 | /* Here for a command that isn't executed directly */ | |
1802 | ||
0af912f0 | 1803 | { |
7ee32cda | 1804 | #ifdef HAVE_X_WINDOWS |
0af912f0 JD |
1805 | int scount = SPECPDL_INDEX (); |
1806 | ||
1807 | if (display_hourglass_p | |
ce0d2858 | 1808 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1809 | { |
1810 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1811 | start_hourglass (); | |
1812 | } | |
7ee32cda GM |
1813 | #endif |
1814 | ||
0af912f0 JD |
1815 | nonundocount = 0; |
1816 | if (NILP (current_kboard->Vprefix_arg)) | |
1817 | Fundo_boundary (); | |
1818 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 GM |
1819 | |
1820 | #ifdef HAVE_X_WINDOWS | |
4fbcc9b1 PJ |
1821 | /* Do not check display_hourglass_p here, because |
1822 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1823 | hourglass cursor anyway. |
1824 | But don't cancel the hourglass within a macro | |
1825 | just because a command in the macro finishes. */ | |
ce0d2858 | 1826 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1827 | unbind_to (scount, Qnil); |
d0c48478 | 1828 | #endif |
0af912f0 | 1829 | } |
284f4730 | 1830 | } |
a764a753 | 1831 | directly_done: ; |
75045dcb | 1832 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1833 | |
84ee6048 RS |
1834 | /* Note that the value cell will never directly contain nil |
1835 | if the symbol is a local variable. */ | |
1836 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1837 | safe_run_hooks (Qpost_command_hook); | |
1838 | ||
8f12e41d GM |
1839 | /* If displaying a message, resize the echo area window to fit |
1840 | that message's size exactly. */ | |
1841 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1842 | resize_echo_area_exactly (); |
8f12e41d | 1843 | |
84ee6048 RS |
1844 | if (!NILP (Vdeferred_action_list)) |
1845 | safe_run_hooks (Qdeferred_action_function); | |
1846 | ||
284f4730 | 1847 | /* If there is a prefix argument, |
6c7178b9 KH |
1848 | 1) We don't want Vlast_command to be ``universal-argument'' |
1849 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1850 | 2) we want to leave echoing on so that the prefix will be |
1851 | echoed as part of this key sequence, so don't call | |
1852 | cancel_echoing, and | |
1853 | 3) we want to leave this_command_key_count non-zero, so that | |
1854 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1855 | not echo it a second time. |
1856 | ||
1857 | If the command didn't actually create a prefix arg, | |
1858 | but is merely a frame event that is transparent to prefix args, | |
1859 | then the above doesn't apply. */ | |
1860 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1861 | { |
d5eecefb RS |
1862 | current_kboard->Vlast_command = Vthis_command; |
1863 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1864 | cancel_echoing (); |
1865 | this_command_key_count = 0; | |
63020c46 | 1866 | this_command_key_count_reset = 0; |
6321824f | 1867 | this_single_command_key_start = 0; |
284f4730 | 1868 | } |
86e5706b | 1869 | |
88ce066e | 1870 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b | 1871 | { |
f28c1bd9 RS |
1872 | /* Setting transient-mark-mode to `only' is a way of |
1873 | turning it on for just one command. */ | |
1874 | ||
1875 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1876 | Vtransient_mark_mode = Qnil; | |
1877 | if (EQ (Vtransient_mark_mode, Qonly)) | |
1878 | Vtransient_mark_mode = Qidentity; | |
1879 | ||
86e5706b RS |
1880 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) |
1881 | { | |
2e1a49ad SM |
1882 | /* We could also call `deactivate'mark'. */ |
1883 | if (EQ (Vtransient_mark_mode, Qlambda)) | |
1884 | Vtransient_mark_mode = Qnil; | |
1885 | else | |
1886 | { | |
1887 | current_buffer->mark_active = Qnil; | |
1888 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1889 | } | |
86e5706b RS |
1890 | } |
1891 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1892 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1893 | } | |
ff4b06d3 KH |
1894 | |
1895 | finalize: | |
adf5cb9c KH |
1896 | |
1897 | if (current_buffer == prev_buffer | |
1898 | && last_point_position != PT | |
1899 | && NILP (Vdisable_point_adjustment) | |
2764bebd RS |
1900 | && NILP (Vglobal_disable_point_adjustment) |
1901 | && !already_adjusted) | |
2a026b04 | 1902 | adjust_point_for_property (last_point_position, MODIFF != prev_modiff); |
adf5cb9c | 1903 | |
ff4b06d3 KH |
1904 | /* Install chars successfully executed in kbd macro. */ |
1905 | ||
d8bcf58e KH |
1906 | if (!NILP (current_kboard->defining_kbd_macro) |
1907 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1908 | finalize_kbd_macro_chars (); |
1909 | ||
c5fdd383 | 1910 | #ifdef MULTI_KBOARD |
604ccd1d | 1911 | if (!was_locked) |
1e8bd3da | 1912 | any_kboard_state (); |
ff4b06d3 | 1913 | #endif |
284f4730 JB |
1914 | } |
1915 | } | |
1c9784c9 | 1916 | |
adf5cb9c KH |
1917 | extern Lisp_Object Qcomposition, Qdisplay; |
1918 | ||
1919 | /* Adjust point to a boundary of a region that has such a property | |
1920 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1921 | `composition', `display' and `invisible' properties. |
1922 | LAST_PT is the last position of point. */ | |
adf5cb9c | 1923 | |
14e40288 SM |
1924 | extern Lisp_Object Qafter_string, Qbefore_string; |
1925 | extern Lisp_Object get_pos_property P_ ((Lisp_Object, Lisp_Object, Lisp_Object)); | |
1926 | ||
adf5cb9c | 1927 | static void |
2a026b04 | 1928 | adjust_point_for_property (last_pt, modified) |
adf5cb9c | 1929 | int last_pt; |
2a026b04 | 1930 | int modified; |
adf5cb9c | 1931 | { |
7e16ef60 SM |
1932 | int beg, end; |
1933 | Lisp_Object val, overlay, tmp; | |
1934 | int check_composition = 1, check_display = 1, check_invisible = 1; | |
0bbdffbd | 1935 | int orig_pt = PT; |
adf5cb9c | 1936 | |
0bbdffbd SM |
1937 | /* FIXME: cycling is probably not necessary because these properties |
1938 | can't be usefully combined anyway. */ | |
7e16ef60 | 1939 | while (check_composition || check_display || check_invisible) |
adf5cb9c KH |
1940 | { |
1941 | if (check_composition | |
1942 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1943 | && get_property_and_range (PT, Qcomposition, &val, &beg, &end, Qnil) |
1944 | && COMPOSITION_VALID_P (beg, end, val) | |
1945 | && beg < PT /* && end > PT <- It's always the case. */ | |
1946 | && (last_pt <= beg || last_pt >= end)) | |
adf5cb9c | 1947 | { |
14e40288 | 1948 | xassert (end > PT); |
7e16ef60 | 1949 | SET_PT (PT < last_pt ? beg : end); |
14e40288 | 1950 | check_display = check_invisible = 1; |
adf5cb9c KH |
1951 | } |
1952 | check_composition = 0; | |
1953 | if (check_display | |
1954 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1955 | && !NILP (val = get_char_property_and_overlay |
1956 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 1957 | && display_prop_intangible_p (val) |
7e16ef60 SM |
1958 | && (!OVERLAYP (overlay) |
1959 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
1960 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
1961 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
1962 | && (beg < PT /* && end > PT <- It's always the case. */ |
1963 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 1964 | { |
14e40288 | 1965 | xassert (end > PT); |
4ca39724 KS |
1966 | SET_PT (PT < last_pt |
1967 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
1968 | : end); | |
14e40288 | 1969 | check_composition = check_invisible = 1; |
adf5cb9c KH |
1970 | } |
1971 | check_display = 0; | |
14e40288 | 1972 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 1973 | { |
14e40288 SM |
1974 | int inv, ellipsis = 0; |
1975 | beg = end = PT; | |
1976 | ||
1977 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
1978 | while (end < ZV | |
1979 | && !NILP (val = get_char_property_and_overlay | |
1980 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
1981 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1982 | { | |
1983 | ellipsis = ellipsis || inv > 1 | |
1984 | || (OVERLAYP (overlay) | |
1985 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1986 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1987 | tmp = Fnext_single_char_property_change | |
1988 | (make_number (end), Qinvisible, Qnil, Qnil); | |
1989 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
1990 | } | |
1991 | while (beg > BEGV | |
1992 | && !NILP (val = get_char_property_and_overlay | |
1993 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
1994 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1995 | { | |
1996 | ellipsis = ellipsis || inv > 1 | |
1997 | || (OVERLAYP (overlay) | |
1998 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1999 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
2000 | tmp = Fprevious_single_char_property_change | |
2001 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
2002 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
2003 | } | |
c60ee5e7 | 2004 | |
14e40288 SM |
2005 | /* Move away from the inside area. */ |
2006 | if (beg < PT && end > PT) | |
2007 | { | |
0bbdffbd SM |
2008 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
2009 | /* We haven't moved yet (so we don't need to fear | |
2010 | infinite-looping) and we were outside the range | |
2011 | before (so either end of the range still corresponds | |
2012 | to a move in the right direction): pretend we moved | |
2013 | less than we actually did, so that we still have | |
2014 | more freedom below in choosing which end of the range | |
2015 | to go to. */ | |
9465a86c | 2016 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
2017 | /* We either have moved already or the last point |
2018 | was already in the range: we don't get to choose | |
2019 | which end of the range we have to go to. */ | |
2020 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
2021 | check_composition = check_display = 1; |
2022 | } | |
a874691c MB |
2023 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
2024 | the point to something other than its argument, due to | |
2025 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 2026 | xassert (PT == beg || PT == end); |
a874691c MB |
2027 | #endif |
2028 | ||
2a026b04 KH |
2029 | /* Pretend the area doesn't exist if the buffer is not |
2030 | modified. */ | |
2031 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
2032 | { |
2033 | if (last_pt == beg && PT == end && end < ZV) | |
2034 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
2035 | else if (last_pt == end && PT == beg && beg > BEGV) | |
2036 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
2037 | else if (PT == ((PT < last_pt) ? beg : end)) | |
2038 | /* We've already moved as far as we can. Trying to go | |
2039 | to the other end would mean moving backwards and thus | |
2040 | could lead to an infinite loop. */ | |
2041 | ; | |
2042 | else if (val = get_pos_property (make_number (PT), | |
2043 | Qinvisible, Qnil), | |
2044 | TEXT_PROP_MEANS_INVISIBLE (val) | |
2045 | && (val = get_pos_property | |
2046 | (make_number (PT == beg ? end : beg), | |
2047 | Qinvisible, Qnil), | |
2048 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
2049 | (check_composition = check_display = 1, | |
2050 | SET_PT (PT == beg ? end : beg)); | |
2051 | } | |
7e16ef60 SM |
2052 | } |
2053 | check_invisible = 0; | |
adf5cb9c KH |
2054 | } |
2055 | } | |
2056 | ||
0bc3db2b RS |
2057 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
2058 | ||
2059 | static Lisp_Object | |
2060 | safe_run_hooks_1 (hook) | |
2061 | Lisp_Object hook; | |
2062 | { | |
2063 | return call1 (Vrun_hooks, Vinhibit_quit); | |
2064 | } | |
2065 | ||
2066 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
2067 | ||
2068 | static Lisp_Object | |
2069 | safe_run_hooks_error (data) | |
2070 | Lisp_Object data; | |
2071 | { | |
adec392e SM |
2072 | Lisp_Object args[3]; |
2073 | args[0] = build_string ("Error in %s: %s"); | |
2074 | args[1] = Vinhibit_quit; | |
2075 | args[2] = data; | |
2076 | Fmessage (3, args); | |
30690496 | 2077 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
2078 | } |
2079 | ||
1c9784c9 KH |
2080 | /* If we get an error while running the hook, cause the hook variable |
2081 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
2082 | to mysteriously evaporate. */ | |
0bc3db2b | 2083 | |
68f297c5 | 2084 | void |
1c9784c9 | 2085 | safe_run_hooks (hook) |
a98ea3f9 | 2086 | Lisp_Object hook; |
1c9784c9 | 2087 | { |
aed13378 | 2088 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
2089 | specbind (Qinhibit_quit, hook); |
2090 | ||
e702932d | 2091 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
2092 | |
2093 | unbind_to (count, Qnil); | |
2094 | } | |
8a9f5d3c | 2095 | |
284f4730 | 2096 | \f |
8a9f5d3c GM |
2097 | /* Number of seconds between polling for input. This is a Lisp |
2098 | variable that can be bound. */ | |
2099 | ||
31ade731 | 2100 | EMACS_INT polling_period; |
284f4730 | 2101 | |
eb8c3be9 | 2102 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 2103 | |
284f4730 JB |
2104 | int poll_suppress_count; |
2105 | ||
8a9f5d3c GM |
2106 | /* Asynchronous timer for polling. */ |
2107 | ||
2108 | struct atimer *poll_timer; | |
2109 | ||
284f4730 | 2110 | |
36922b18 RS |
2111 | #ifdef POLL_FOR_INPUT |
2112 | ||
8a9f5d3c GM |
2113 | /* Poll for input, so what we catch a C-g if it comes in. This |
2114 | function is called from x_make_frame_visible, see comment | |
2115 | there. */ | |
284f4730 | 2116 | |
8a9f5d3c GM |
2117 | void |
2118 | poll_for_input_1 () | |
284f4730 | 2119 | { |
9ac0d9e0 JB |
2120 | if (interrupt_input_blocked == 0 |
2121 | && !waiting_for_input) | |
2122 | read_avail_input (0); | |
284f4730 JB |
2123 | } |
2124 | ||
8a9f5d3c GM |
2125 | /* Timer callback function for poll_timer. TIMER is equal to |
2126 | poll_timer. */ | |
2127 | ||
2128 | void | |
2129 | poll_for_input (timer) | |
2130 | struct atimer *timer; | |
2131 | { | |
2132 | if (poll_suppress_count == 0) | |
a42bf890 YM |
2133 | #ifdef SYNC_INPUT |
2134 | interrupt_input_pending = 1; | |
2135 | #else | |
8a9f5d3c | 2136 | poll_for_input_1 (); |
a42bf890 | 2137 | #endif |
8a9f5d3c GM |
2138 | } |
2139 | ||
2140 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
2141 | |
2142 | /* Begin signals to poll for input, if they are appropriate. | |
2143 | This function is called unconditionally from various places. */ | |
2144 | ||
07a59269 | 2145 | void |
284f4730 JB |
2146 | start_polling () |
2147 | { | |
2148 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2149 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2150 | but read_socket_hook is not global anymore. Let's pretend that | |
2151 | it's always set. */ | |
2152 | if (!interrupt_input) | |
284f4730 | 2153 | { |
8a9f5d3c GM |
2154 | /* Turn alarm handling on unconditionally. It might have |
2155 | been turned off in process.c. */ | |
2156 | turn_on_atimers (1); | |
c60ee5e7 | 2157 | |
8a9f5d3c GM |
2158 | /* If poll timer doesn't exist, are we need one with |
2159 | a different interval, start a new one. */ | |
2160 | if (poll_timer == NULL | |
2161 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 2162 | { |
8a9f5d3c GM |
2163 | EMACS_TIME interval; |
2164 | ||
2165 | if (poll_timer) | |
2166 | cancel_atimer (poll_timer); | |
c60ee5e7 | 2167 | |
8a9f5d3c GM |
2168 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
2169 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
2170 | poll_for_input, NULL); | |
284f4730 | 2171 | } |
8a9f5d3c GM |
2172 | |
2173 | /* Let the timer's callback function poll for input | |
2174 | if this becomes zero. */ | |
2175 | --poll_suppress_count; | |
284f4730 JB |
2176 | } |
2177 | #endif | |
2178 | } | |
2179 | ||
1d3195db RS |
2180 | /* Nonzero if we are using polling to handle input asynchronously. */ |
2181 | ||
2182 | int | |
2183 | input_polling_used () | |
2184 | { | |
2185 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2186 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2187 | but read_socket_hook is not global anymore. Let's pretend that | |
2188 | it's always set. */ | |
2189 | return !interrupt_input; | |
1d3195db RS |
2190 | #else |
2191 | return 0; | |
2192 | #endif | |
2193 | } | |
2194 | ||
284f4730 JB |
2195 | /* Turn off polling. */ |
2196 | ||
07a59269 | 2197 | void |
284f4730 JB |
2198 | stop_polling () |
2199 | { | |
2200 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
2201 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
2202 | but read_socket_hook is not global anymore. Let's pretend that | |
2203 | it's always set. */ | |
2204 | if (!interrupt_input) | |
8a9f5d3c | 2205 | ++poll_suppress_count; |
284f4730 JB |
2206 | #endif |
2207 | } | |
fe8aeef3 RS |
2208 | |
2209 | /* Set the value of poll_suppress_count to COUNT | |
2210 | and start or stop polling accordingly. */ | |
2211 | ||
2212 | void | |
2213 | set_poll_suppress_count (count) | |
2214 | int count; | |
2215 | { | |
2216 | #ifdef POLL_FOR_INPUT | |
2217 | if (count == 0 && poll_suppress_count != 0) | |
2218 | { | |
2219 | poll_suppress_count = 1; | |
2220 | start_polling (); | |
2221 | } | |
2222 | else if (count != 0 && poll_suppress_count == 0) | |
2223 | { | |
2224 | stop_polling (); | |
2225 | } | |
2226 | poll_suppress_count = count; | |
2227 | #endif | |
2228 | } | |
f4eef8b4 | 2229 | |
d0a57728 RS |
2230 | /* Bind polling_period to a value at least N. |
2231 | But don't decrease it. */ | |
2232 | ||
07a59269 | 2233 | void |
f4eef8b4 RS |
2234 | bind_polling_period (n) |
2235 | int n; | |
2236 | { | |
2237 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
2238 | int new = polling_period; |
2239 | ||
2240 | if (n > new) | |
2241 | new = n; | |
2242 | ||
6fe007f7 | 2243 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2244 | stop_polling (); |
d0a57728 RS |
2245 | specbind (Qpolling_period, make_number (new)); |
2246 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2247 | start_polling (); |
2248 | #endif | |
2249 | } | |
284f4730 | 2250 | \f |
6da3dd3a RS |
2251 | /* Apply the control modifier to CHARACTER. */ |
2252 | ||
faf5e407 JB |
2253 | int |
2254 | make_ctrl_char (c) | |
2255 | int c; | |
2256 | { | |
d205953b JB |
2257 | /* Save the upper bits here. */ |
2258 | int upper = c & ~0177; | |
2259 | ||
2260 | c &= 0177; | |
2261 | ||
2262 | /* Everything in the columns containing the upper-case letters | |
2263 | denotes a control character. */ | |
2264 | if (c >= 0100 && c < 0140) | |
2265 | { | |
2266 | int oc = c; | |
2267 | c &= ~0140; | |
2268 | /* Set the shift modifier for a control char | |
2269 | made from a shifted letter. But only for letters! */ | |
2270 | if (oc >= 'A' && oc <= 'Z') | |
2271 | c |= shift_modifier; | |
2272 | } | |
2273 | ||
2274 | /* The lower-case letters denote control characters too. */ | |
2275 | else if (c >= 'a' && c <= 'z') | |
2276 | c &= ~0140; | |
2277 | ||
2278 | /* Include the bits for control and shift | |
2279 | only if the basic ASCII code can't indicate them. */ | |
2280 | else if (c >= ' ') | |
2281 | c |= ctrl_modifier; | |
2282 | ||
2283 | /* Replace the high bits. */ | |
2284 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2285 | |
2286 | return c; | |
2287 | } | |
2288 | ||
bb8c4865 RS |
2289 | /* Display the help-echo property of the character after the mouse pointer. |
2290 | Either show it in the echo area, or call show-help-function to display | |
2291 | it by other means (maybe in a tooltip). | |
d4e68eea | 2292 | |
bb8c4865 RS |
2293 | If HELP is nil, that means clear the previous help echo. |
2294 | ||
2295 | If HELP is a string, display that string. If HELP is a function, | |
2296 | call it with OBJECT and POS as arguments; the function should | |
2297 | return a help string or nil for none. For all other types of HELP, | |
2298 | evaluate it to obtain a string. | |
8dfd92c9 | 2299 | |
2190735a GM |
2300 | WINDOW is the window in which the help was generated, if any. |
2301 | It is nil if not in a window. | |
2302 | ||
5b2ec2d0 GM |
2303 | If OBJECT is a buffer, POS is the position in the buffer where the |
2304 | `help-echo' text property was found. | |
2305 | ||
2306 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2307 | and POS is the position in the overlay's buffer under the mouse. | |
2308 | ||
2309 | If OBJECT is a string (an overlay string or a string displayed with | |
2310 | the `display' property). POS is the position in that string under | |
2311 | the mouse. | |
d4e68eea | 2312 | |
27fd22dc | 2313 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2314 | echo overwrites a keystroke echo currently displayed in the echo |
2315 | area. | |
2316 | ||
8dfd92c9 GM |
2317 | Note: this function may only be called with HELP nil or a string |
2318 | from X code running asynchronously. */ | |
d4e68eea | 2319 | |
31f84d03 | 2320 | void |
2190735a GM |
2321 | show_help_echo (help, window, object, pos, ok_to_overwrite_keystroke_echo) |
2322 | Lisp_Object help, window, object, pos; | |
adc84f48 | 2323 | int ok_to_overwrite_keystroke_echo; |
31f84d03 | 2324 | { |
8dfd92c9 | 2325 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2326 | { |
8dfd92c9 GM |
2327 | if (FUNCTIONP (help)) |
2328 | { | |
2190735a | 2329 | Lisp_Object args[4]; |
8dfd92c9 | 2330 | args[0] = help; |
2190735a GM |
2331 | args[1] = window; |
2332 | args[2] = object; | |
2333 | args[3] = pos; | |
1db0076e | 2334 | help = safe_call (4, args); |
8dfd92c9 GM |
2335 | } |
2336 | else | |
1db0076e | 2337 | help = safe_eval (help); |
c60ee5e7 | 2338 | |
8dfd92c9 | 2339 | if (!STRINGP (help)) |
d4e68eea | 2340 | return; |
31f84d03 SM |
2341 | } |
2342 | ||
c22237f7 KS |
2343 | #ifdef HAVE_MOUSE |
2344 | if (!noninteractive && STRINGP (help)) | |
2345 | help = call1 (Qmouse_fixup_help_message, help); | |
2346 | #endif | |
2347 | ||
8dfd92c9 | 2348 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2349 | { |
2350 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2351 | call1 (Vshow_help_function, help); |
d4e68eea GM |
2352 | else if (/* Don't overwrite minibuffer contents. */ |
2353 | !MINI_WINDOW_P (XWINDOW (selected_window)) | |
2354 | /* Don't overwrite a keystroke echo. */ | |
8dfd92c9 GM |
2355 | && (NILP (echo_message_buffer) |
2356 | || ok_to_overwrite_keystroke_echo) | |
d4e68eea GM |
2357 | /* Don't overwrite a prompt. */ |
2358 | && !cursor_in_echo_area) | |
2359 | { | |
8dfd92c9 | 2360 | if (STRINGP (help)) |
d4e68eea | 2361 | { |
331379bf | 2362 | int count = SPECPDL_INDEX (); |
f0c1cc56 GM |
2363 | |
2364 | if (!help_echo_showing_p) | |
2365 | Vpre_help_message = current_message (); | |
c60ee5e7 | 2366 | |
d4e68eea | 2367 | specbind (Qmessage_truncate_lines, Qt); |
d5db4077 | 2368 | message3_nolog (help, SBYTES (help), |
8dfd92c9 | 2369 | STRING_MULTIBYTE (help)); |
d4e68eea GM |
2370 | unbind_to (count, Qnil); |
2371 | } | |
f0c1cc56 GM |
2372 | else if (STRINGP (Vpre_help_message)) |
2373 | { | |
2374 | message3_nolog (Vpre_help_message, | |
d5db4077 | 2375 | SBYTES (Vpre_help_message), |
f0c1cc56 GM |
2376 | STRING_MULTIBYTE (Vpre_help_message)); |
2377 | Vpre_help_message = Qnil; | |
2378 | } | |
d4e68eea | 2379 | else |
f0c1cc56 | 2380 | message (0); |
d4e68eea | 2381 | } |
c60ee5e7 | 2382 | |
5295a500 | 2383 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2384 | } |
31f84d03 SM |
2385 | } |
2386 | ||
faf5e407 JB |
2387 | |
2388 | \f | |
284f4730 JB |
2389 | /* Input of single characters from keyboard */ |
2390 | ||
2391 | Lisp_Object print_help (); | |
2392 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 2393 | static void record_char (); |
284f4730 | 2394 | |
c5fdd383 KH |
2395 | #ifdef MULTI_KBOARD |
2396 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 2397 | #endif |
beecf6a1 | 2398 | |
184c3d81 RS |
2399 | #define STOP_POLLING \ |
2400 | do { if (! polling_stopped_here) stop_polling (); \ | |
2401 | polling_stopped_here = 1; } while (0) | |
2402 | ||
2403 | #define RESUME_POLLING \ | |
2404 | do { if (polling_stopped_here) start_polling (); \ | |
2405 | polling_stopped_here = 0; } while (0) | |
2406 | ||
284f4730 JB |
2407 | /* read a character from the keyboard; call the redisplay if needed */ |
2408 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2409 | -1 means do not do redisplay, but do do autosaving. | |
2410 | 1 means do both. */ | |
2411 | ||
7d6de002 RS |
2412 | /* The arguments MAPS and NMAPS are for menu prompting. |
2413 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2414 | ||
2415 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2416 | the first event of a key sequence (or not reading a key sequence). |
2417 | If PREV_EVENT is t, that is a "magic" value that says | |
2418 | not to run input methods, but in other respects to act as if | |
2419 | not reading a key sequence. | |
7d6de002 | 2420 | |
83d68044 | 2421 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2422 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2423 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
2424 | |
2425 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 2426 | |
284f4730 | 2427 | Lisp_Object |
7d6de002 | 2428 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 2429 | int commandflag; |
7d6de002 RS |
2430 | int nmaps; |
2431 | Lisp_Object *maps; | |
2432 | Lisp_Object prev_event; | |
2433 | int *used_mouse_menu; | |
284f4730 | 2434 | { |
8c907a56 | 2435 | volatile Lisp_Object c; |
284f4730 | 2436 | int count; |
410d4de9 | 2437 | jmp_buf local_getcjmp; |
284f4730 | 2438 | jmp_buf save_jump; |
8c907a56 | 2439 | volatile int key_already_recorded = 0; |
017c7cb6 | 2440 | Lisp_Object tem, save; |
8c907a56 GM |
2441 | volatile Lisp_Object previous_echo_area_message; |
2442 | volatile Lisp_Object also_record; | |
2443 | volatile int reread; | |
d5eecefb | 2444 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2445 | int polling_stopped_here = 0; |
7c3bc944 | 2446 | |
e4fe371d | 2447 | also_record = Qnil; |
284f4730 | 2448 | |
22b94eeb | 2449 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2450 | before_command_key_count = this_command_key_count; |
2451 | before_command_echo_length = echo_length (); | |
22b94eeb | 2452 | #endif |
ef6661f7 | 2453 | c = Qnil; |
7ee32cda | 2454 | previous_echo_area_message = Qnil; |
71918b75 | 2455 | |
7ee32cda | 2456 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2457 | |
7f07d5ca RS |
2458 | retry: |
2459 | ||
7d18f9ae RS |
2460 | reread = 0; |
2461 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2462 | { |
7539e11f | 2463 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2464 | Vunread_post_input_method_events |
7539e11f | 2465 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2466 | |
2479e91e RS |
2467 | /* Undo what read_char_x_menu_prompt did when it unread |
2468 | additional keys returned by Fx_popup_menu. */ | |
2469 | if (CONSP (c) | |
7539e11f KR |
2470 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2471 | && NILP (XCDR (c))) | |
2472 | c = XCAR (c); | |
2479e91e | 2473 | |
7d18f9ae RS |
2474 | reread = 1; |
2475 | goto reread_first; | |
284f4730 JB |
2476 | } |
2477 | ||
86e5706b RS |
2478 | if (unread_command_char != -1) |
2479 | { | |
18cd2eeb | 2480 | XSETINT (c, unread_command_char); |
86e5706b RS |
2481 | unread_command_char = -1; |
2482 | ||
7d18f9ae RS |
2483 | reread = 1; |
2484 | goto reread_first; | |
2485 | } | |
2486 | ||
2487 | if (CONSP (Vunread_command_events)) | |
2488 | { | |
7539e11f KR |
2489 | c = XCAR (Vunread_command_events); |
2490 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae RS |
2491 | |
2492 | /* Undo what read_char_x_menu_prompt did when it unread | |
2493 | additional keys returned by Fx_popup_menu. */ | |
2494 | if (CONSP (c) | |
f4e05d97 GM |
2495 | && EQ (XCDR (c), Qdisabled) |
2496 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
7539e11f | 2497 | c = XCAR (c); |
c60ee5e7 | 2498 | |
d17e49a8 GM |
2499 | /* If the queued event is something that used the mouse, |
2500 | set used_mouse_menu accordingly. */ | |
2501 | if (used_mouse_menu | |
2502 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar))) | |
2503 | *used_mouse_menu = 1; | |
c60ee5e7 | 2504 | |
7d18f9ae RS |
2505 | reread = 1; |
2506 | goto reread_for_input_method; | |
2507 | } | |
2508 | ||
2509 | if (CONSP (Vunread_input_method_events)) | |
2510 | { | |
7539e11f KR |
2511 | c = XCAR (Vunread_input_method_events); |
2512 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2513 | |
2514 | /* Undo what read_char_x_menu_prompt did when it unread | |
2515 | additional keys returned by Fx_popup_menu. */ | |
2516 | if (CONSP (c) | |
7539e11f KR |
2517 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2518 | && NILP (XCDR (c))) | |
2519 | c = XCAR (c); | |
7d18f9ae RS |
2520 | reread = 1; |
2521 | goto reread_for_input_method; | |
86e5706b RS |
2522 | } |
2523 | ||
63020c46 RS |
2524 | this_command_key_count_reset = 0; |
2525 | ||
ce0d2858 | 2526 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2527 | { |
fce33686 JB |
2528 | /* We set this to Qmacro; since that's not a frame, nobody will |
2529 | try to switch frames on us, and the selected window will | |
2530 | remain unchanged. | |
2531 | ||
2532 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2533 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2534 | real event came from. Normally, a switch-frame event selects |
2535 | internal_last_event_frame after each command is read, but | |
2536 | events read from a macro should never cause a new frame to be | |
2537 | selected. */ | |
4c52b668 | 2538 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2539 | |
663258f2 JB |
2540 | /* Exit the macro if we are at the end. |
2541 | Also, some things replace the macro with t | |
2542 | to force an early exit. */ | |
ce0d2858 | 2543 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2544 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2545 | { |
18cd2eeb | 2546 | XSETINT (c, -1); |
184c3d81 | 2547 | goto exit; |
284f4730 | 2548 | } |
df0f2ba1 | 2549 | |
649d952d | 2550 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2551 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2552 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2553 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2554 | |
649d952d | 2555 | executing_kbd_macro_index++; |
284f4730 JB |
2556 | |
2557 | goto from_macro; | |
2558 | } | |
2559 | ||
cd21b839 JB |
2560 | if (!NILP (unread_switch_frame)) |
2561 | { | |
2562 | c = unread_switch_frame; | |
2563 | unread_switch_frame = Qnil; | |
2564 | ||
2565 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2566 | again, so we do not set `reread'. */ |
f4255cd1 | 2567 | goto reread_first; |
cd21b839 JB |
2568 | } |
2569 | ||
adc1d5c8 | 2570 | /* if redisplay was requested */ |
6e4e64a8 RS |
2571 | if (commandflag >= 0) |
2572 | { | |
adc1d5c8 RS |
2573 | /* If there is pending input, process any events which are not |
2574 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2575 | if (input_pending |
2576 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2577 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2578 | |
adc1d5c8 RS |
2579 | /* Redisplay if no pending input. */ |
2580 | while (!input_pending) | |
2581 | { | |
5295a500 | 2582 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2583 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2584 | else |
2585 | redisplay (); | |
adc1d5c8 RS |
2586 | |
2587 | if (!input_pending) | |
2588 | /* Normal case: no input arrived during redisplay. */ | |
2589 | break; | |
2590 | ||
2591 | /* Input arrived and pre-empted redisplay. | |
2592 | Process any events which are not user-visible. */ | |
2593 | swallow_events (0); | |
2594 | /* If that cleared input_pending, try again to redisplay. */ | |
2595 | } | |
6e4e64a8 | 2596 | } |
e9bf89a0 | 2597 | |
59a84f8e | 2598 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2599 | |
59a84f8e GM |
2600 | The code in 20.x for the condition was |
2601 | ||
2602 | 1. echo_area_glyphs && *echo_area_glyphs | |
2603 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2604 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2605 | ||
2606 | (1) means there's a current message displayed | |
c60ee5e7 | 2607 | |
59a84f8e GM |
2608 | (2) means it's not the message from echoing from the current |
2609 | kboard. | |
c60ee5e7 | 2610 | |
59a84f8e GM |
2611 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2612 | is set to a non-null value. This is done in read_char and it is | |
2613 | set to echo_area_glyphs after a call to echo_char. That means | |
2614 | ok_to_echo_at_next_pause is either null or | |
2615 | current_kboard->echobuf with the appropriate current_kboard at | |
2616 | that time. | |
2617 | ||
2618 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2619 | must be either null, or the current message isn't from echoing at | |
2620 | all, or it's from echoing from a different kboard than the | |
2621 | current one. */ | |
c60ee5e7 | 2622 | |
27fd22dc | 2623 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2624 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2625 | && (/* And it's either not from echoing. */ |
2626 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2627 | /* Or it's an echo from a different kboard. */ | |
2628 | || echo_kboard != current_kboard | |
2629 | /* Or we explicitly allow overwriting whatever there is. */ | |
2630 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2631 | cancel_echoing (); |
410d4de9 | 2632 | else |
410d4de9 | 2633 | echo_dash (); |
c60ee5e7 | 2634 | |
410d4de9 RS |
2635 | /* Try reading a character via menu prompting in the minibuf. |
2636 | Try this before the sit-for, because the sit-for | |
2637 | would do the wrong thing if we are supposed to do | |
2638 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2639 | after a mouse event so don't try a minibuf menu. */ | |
2640 | c = Qnil; | |
2641 | if (nmaps > 0 && INTERACTIVE | |
2642 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2643 | /* Don't bring up a menu if we already have another event. */ | |
2644 | && NILP (Vunread_command_events) | |
2645 | && unread_command_char < 0 | |
4ec4ed6a | 2646 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2647 | { |
2648 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2649 | if (! NILP (c)) | |
2650 | { | |
2651 | key_already_recorded = 1; | |
2652 | goto non_reread_1; | |
2653 | } | |
2654 | } | |
284f4730 | 2655 | |
410d4de9 RS |
2656 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2657 | We will do that below, temporarily for short sections of code, | |
2658 | when appropriate. local_getcjmp must be in effect | |
2659 | around any call to sit_for or kbd_buffer_get_event; | |
2660 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2661 | |
410d4de9 | 2662 | if (_setjmp (local_getcjmp)) |
284f4730 | 2663 | { |
dfbfad25 RS |
2664 | /* We must have saved the outer value of getcjmp here, |
2665 | so restore it now. */ | |
2666 | restore_getcjmp (save_jump); | |
18cd2eeb | 2667 | XSETINT (c, quit_char); |
788f89eb | 2668 | internal_last_event_frame = selected_frame; |
4c52b668 | 2669 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2670 | /* If we report the quit char as an event, |
2671 | don't do so more than once. */ | |
2672 | if (!NILP (Vinhibit_quit)) | |
2673 | Vquit_flag = Qnil; | |
284f4730 | 2674 | |
c5fdd383 | 2675 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2676 | { |
788f89eb | 2677 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2678 | if (kb != current_kboard) |
df0f2ba1 | 2679 | { |
f3fbd155 | 2680 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2681 | /* We shouldn't get here if we were in single-kboard mode! */ |
2682 | if (single_kboard) | |
df0f2ba1 | 2683 | abort (); |
f3fbd155 KR |
2684 | if (CONSP (link)) |
2685 | { | |
2686 | while (CONSP (XCDR (link))) | |
2687 | link = XCDR (link); | |
2688 | if (!NILP (XCDR (link))) | |
2689 | abort (); | |
2690 | } | |
2691 | if (!CONSP (link)) | |
2692 | kb->kbd_queue = Fcons (c, Qnil); | |
2693 | else | |
2694 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2695 | kb->kbd_queue_has_data = 1; |
2696 | current_kboard = kb; | |
ef6661f7 RS |
2697 | /* This is going to exit from read_char |
2698 | so we had better get rid of this frame's stuff. */ | |
2699 | UNGCPRO; | |
c5fdd383 | 2700 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2701 | } |
2702 | } | |
2703 | #endif | |
284f4730 JB |
2704 | goto non_reread; |
2705 | } | |
2706 | ||
d9d4c147 KH |
2707 | timer_start_idle (); |
2708 | ||
284f4730 JB |
2709 | /* If in middle of key sequence and minibuffer not active, |
2710 | start echoing if enough time elapses. */ | |
410d4de9 | 2711 | |
c60ee5e7 | 2712 | if (minibuf_level == 0 |
7ee32cda | 2713 | && !current_kboard->immediate_echo |
6c6083a9 | 2714 | && this_command_key_count > 0 |
27203ead | 2715 | && ! noninteractive |
f2647d04 DL |
2716 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2717 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2718 | && (/* No message. */ |
2719 | NILP (echo_area_buffer[0]) | |
2720 | /* Or empty message. */ | |
2721 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2722 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2723 | /* Or already echoing from same kboard. */ | |
2724 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2725 | /* Or not echoing before and echoing allowed. */ | |
2726 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2727 | { |
2728 | Lisp_Object tem0; | |
c60ee5e7 | 2729 | |
7d6de002 RS |
2730 | /* After a mouse event, start echoing right away. |
2731 | This is because we are probably about to display a menu, | |
2732 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2733 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2734 | echo_now (); |
7d6de002 RS |
2735 | else |
2736 | { | |
39aab679 DL |
2737 | int sec, usec; |
2738 | double duration = extract_float (Vecho_keystrokes); | |
2739 | sec = (int) duration; | |
15fa88ab | 2740 | usec = (duration - sec) * 1000000; |
410d4de9 RS |
2741 | save_getcjmp (save_jump); |
2742 | restore_getcjmp (local_getcjmp); | |
39aab679 | 2743 | tem0 = sit_for (sec, usec, 1, 1, 0); |
410d4de9 | 2744 | restore_getcjmp (save_jump); |
303b5b3f RS |
2745 | if (EQ (tem0, Qt) |
2746 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2747 | echo_now (); |
7d6de002 | 2748 | } |
284f4730 JB |
2749 | } |
2750 | ||
410d4de9 | 2751 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2752 | |
2753 | if (commandflag != 0 | |
2754 | && auto_save_interval > 0 | |
c43b1734 | 2755 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2756 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2757 | { |
284f4730 | 2758 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2759 | /* Hooks can actually change some buffers in auto save. */ |
2760 | redisplay (); | |
284f4730 JB |
2761 | } |
2762 | ||
8150596a | 2763 | /* Try reading using an X menu. |
24597608 RS |
2764 | This is never confused with reading using the minibuf |
2765 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2766 | does not pass on any keymaps. */ | |
410d4de9 | 2767 | |
24597608 | 2768 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2769 | && !NILP (prev_event) |
2770 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2771 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2772 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2773 | /* Don't bring up a menu if we already have another event. */ |
2774 | && NILP (Vunread_command_events) | |
b8556aee | 2775 | && unread_command_char < 0) |
8eb4d8ef RS |
2776 | { |
2777 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2778 | ||
2779 | /* Now that we have read an event, Emacs is not idle. */ | |
2780 | timer_stop_idle (); | |
2781 | ||
184c3d81 | 2782 | goto exit; |
8eb4d8ef | 2783 | } |
7d6de002 | 2784 | |
410d4de9 RS |
2785 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2786 | ||
26c1639e | 2787 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2788 | { |
2789 | int delay_level, buffer_size; | |
2790 | ||
410d4de9 RS |
2791 | /* Slow down auto saves logarithmically in size of current buffer, |
2792 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2793 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2794 | last_non_minibuf_size = Z - BEG; | |
2795 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2796 | delay_level = 0; | |
2797 | while (buffer_size > 64) | |
2798 | delay_level++, buffer_size -= buffer_size >> 2; | |
2799 | if (delay_level < 4) delay_level = 4; | |
2800 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2801 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2802 | ||
2803 | /* Auto save if enough time goes by without input. */ | |
2804 | if (commandflag != 0 | |
c43b1734 | 2805 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2806 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2807 | && XINT (Vauto_save_timeout) > 0) |
2808 | { | |
2809 | Lisp_Object tem0; | |
410d4de9 RS |
2810 | |
2811 | save_getcjmp (save_jump); | |
2812 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2813 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2814 | 0, 1, 1, 0); |
410d4de9 RS |
2815 | restore_getcjmp (save_jump); |
2816 | ||
303b5b3f RS |
2817 | if (EQ (tem0, Qt) |
2818 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2819 | { |
7d6de002 | 2820 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2821 | |
2822 | /* If we have auto-saved and there is still no input | |
2823 | available, garbage collect if there has been enough | |
2824 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2825 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2826 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2827 | Fgarbage_collect (); |
410d4de9 | 2828 | |
ef8fd672 | 2829 | redisplay (); |
7d6de002 RS |
2830 | } |
2831 | } | |
2832 | } | |
284f4730 | 2833 | |
303b5b3f RS |
2834 | /* If this has become non-nil here, it has been set by a timer |
2835 | or sentinel or filter. */ | |
2836 | if (CONSP (Vunread_command_events)) | |
2837 | { | |
7539e11f KR |
2838 | c = XCAR (Vunread_command_events); |
2839 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2840 | } |
2841 | ||
410d4de9 RS |
2842 | /* Read something from current KBOARD's side queue, if possible. */ |
2843 | ||
beecf6a1 | 2844 | if (NILP (c)) |
1e12dd87 | 2845 | { |
c5fdd383 | 2846 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2847 | { |
c5fdd383 | 2848 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2849 | abort (); |
7539e11f | 2850 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2851 | current_kboard->kbd_queue |
7539e11f | 2852 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2853 | if (NILP (current_kboard->kbd_queue)) |
2854 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2855 | input_pending = readable_events (0); |
4c52b668 KH |
2856 | if (EVENT_HAS_PARAMETERS (c) |
2857 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2858 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2859 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2860 | } |
1e8bd3da RS |
2861 | } |
2862 | ||
c5fdd383 | 2863 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2864 | /* If current_kboard's side queue is empty check the other kboards. |
2865 | If one of them has data that we have not yet seen here, | |
2866 | switch to it and process the data waiting for it. | |
2867 | ||
2868 | Note: if the events queued up for another kboard | |
2869 | have already been seen here, and therefore are not a complete command, | |
2870 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2871 | That's to avoid an infinite loop switching between kboards here. */ | |
2872 | if (NILP (c) && !single_kboard) | |
2873 | { | |
2874 | KBOARD *kb; | |
2875 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2876 | if (kb->kbd_queue_has_data) | |
2877 | { | |
2878 | current_kboard = kb; | |
ef6661f7 RS |
2879 | /* This is going to exit from read_char |
2880 | so we had better get rid of this frame's stuff. */ | |
2881 | UNGCPRO; | |
1e8bd3da RS |
2882 | longjmp (wrong_kboard_jmpbuf, 1); |
2883 | } | |
2884 | } | |
df0f2ba1 KH |
2885 | #endif |
2886 | ||
410d4de9 RS |
2887 | wrong_kboard: |
2888 | ||
184c3d81 | 2889 | STOP_POLLING; |
410d4de9 | 2890 | |
1e8bd3da RS |
2891 | /* Finally, we read from the main queue, |
2892 | and if that gives us something we can't use yet, we put it on the | |
2893 | appropriate side queue and try again. */ | |
410d4de9 | 2894 | |
1e8bd3da RS |
2895 | if (NILP (c)) |
2896 | { | |
2897 | KBOARD *kb; | |
2898 | ||
1e8bd3da | 2899 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2900 | save_getcjmp (save_jump); |
2901 | restore_getcjmp (local_getcjmp); | |
5b7bc0da | 2902 | timer_start_idle (); |
83d68044 | 2903 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2904 | restore_getcjmp (save_jump); |
2905 | ||
c5fdd383 | 2906 | #ifdef MULTI_KBOARD |
410d4de9 | 2907 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2908 | { |
f3fbd155 KR |
2909 | Lisp_Object link = kb->kbd_queue; |
2910 | if (CONSP (link)) | |
2911 | { | |
2912 | while (CONSP (XCDR (link))) | |
2913 | link = XCDR (link); | |
2914 | if (!NILP (XCDR (link))) | |
2915 | abort (); | |
2916 | } | |
2917 | if (!CONSP (link)) | |
2918 | kb->kbd_queue = Fcons (c, Qnil); | |
2919 | else | |
2920 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2921 | kb->kbd_queue_has_data = 1; |
46b84797 | 2922 | c = Qnil; |
1e8bd3da RS |
2923 | if (single_kboard) |
2924 | goto wrong_kboard; | |
2925 | current_kboard = kb; | |
ef6661f7 RS |
2926 | /* This is going to exit from read_char |
2927 | so we had better get rid of this frame's stuff. */ | |
2928 | UNGCPRO; | |
1e8bd3da | 2929 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2930 | } |
1e8bd3da | 2931 | #endif |
beecf6a1 | 2932 | } |
1e8bd3da | 2933 | |
284f4730 | 2934 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2935 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2936 | Fkill_emacs (make_number (1)); |
2937 | ||
8c18cbfb | 2938 | if (INTEGERP (c)) |
80645119 JB |
2939 | { |
2940 | /* Add in any extra modifiers, where appropriate. */ | |
2941 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2942 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2943 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2944 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2945 | |
2946 | /* Transfer any other modifier bits directly from | |
2947 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2948 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2949 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2950 | } |
9fa4395d | 2951 | |
284f4730 JB |
2952 | non_reread: |
2953 | ||
2fb9049e | 2954 | timer_stop_idle (); |
184c3d81 | 2955 | RESUME_POLLING; |
284f4730 | 2956 | |
410d4de9 RS |
2957 | if (NILP (c)) |
2958 | { | |
2959 | if (commandflag >= 0 | |
4ec4ed6a | 2960 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2961 | redisplay (); |
2962 | ||
2963 | goto wrong_kboard; | |
2964 | } | |
2965 | ||
2966 | non_reread_1: | |
2967 | ||
dfd11da7 | 2968 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2969 | so don't show them to the user. |
2970 | Also, don't record a key if we already did. */ | |
2971 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 2972 | goto exit; |
a1341f75 | 2973 | |
7f07d5ca RS |
2974 | /* Process special events within read_char |
2975 | and loop around to read another event. */ | |
017c7cb6 RS |
2976 | save = Vquit_flag; |
2977 | Vquit_flag = Qnil; | |
02067692 | 2978 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2979 | Vquit_flag = save; |
7f07d5ca RS |
2980 | |
2981 | if (!NILP (tem)) | |
2982 | { | |
ba8dfba8 RS |
2983 | int was_locked = single_kboard; |
2984 | ||
7f07d5ca | 2985 | last_input_char = c; |
158f7532 | 2986 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 | 2987 | |
5d12f14d EZ |
2988 | if (CONSP (c) && EQ (XCAR (c), Qselect_window)) |
2989 | /* We stopped being idle for this event; undo that. This | |
2990 | prevents automatic window selection (under | |
0b9a1d3d | 2991 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 2992 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 2993 | timer_resume_idle (); |
5d12f14d | 2994 | |
ba8dfba8 RS |
2995 | /* Resume allowing input from any kboard, if that was true before. */ |
2996 | if (!was_locked) | |
2997 | any_kboard_state (); | |
2998 | ||
7f07d5ca RS |
2999 | goto retry; |
3000 | } | |
3001 | ||
284f4730 | 3002 | /* Handle things that only apply to characters. */ |
8c18cbfb | 3003 | if (INTEGERP (c)) |
284f4730 JB |
3004 | { |
3005 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 3006 | if (XINT (c) == -1) |
184c3d81 | 3007 | goto exit; |
284f4730 | 3008 | |
2e478293 KL |
3009 | if ((STRINGP (current_kboard->Vkeyboard_translate_table) |
3010 | && SCHARS (current_kboard->Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) | |
3011 | || (VECTORP (current_kboard->Vkeyboard_translate_table) | |
3012 | && XVECTOR (current_kboard->Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
3013 | || (CHAR_TABLE_P (current_kboard->Vkeyboard_translate_table) | |
5e3cb80d | 3014 | && CHAR_VALID_P (XINT (c), 0))) |
f9414d62 RS |
3015 | { |
3016 | Lisp_Object d; | |
2e478293 | 3017 | d = Faref (current_kboard->Vkeyboard_translate_table, c); |
f9414d62 RS |
3018 | /* nil in keyboard-translate-table means no translation. */ |
3019 | if (!NILP (d)) | |
3020 | c = d; | |
3021 | } | |
284f4730 JB |
3022 | } |
3023 | ||
e4fe371d RS |
3024 | /* If this event is a mouse click in the menu bar, |
3025 | return just menu-bar for now. Modify the mouse click event | |
3026 | so we won't do this twice, then queue it up. */ | |
3027 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 3028 | && CONSP (XCDR (c)) |
e4fe371d | 3029 | && CONSP (EVENT_START (c)) |
7539e11f | 3030 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 3031 | { |
e4fe371d | 3032 | Lisp_Object posn; |
284f4730 | 3033 | |
eee5863b | 3034 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
3035 | /* Handle menu-bar events: |
3036 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 3037 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
3038 | { |
3039 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
eee5863b | 3040 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 3041 | |
e4fe371d RS |
3042 | also_record = c; |
3043 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
3044 | c = posn; | |
284f4730 | 3045 | } |
284f4730 JB |
3046 | } |
3047 | ||
7d18f9ae RS |
3048 | /* Store these characters into recent_keys, the dribble file if any, |
3049 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
3050 | record_char (c); |
3051 | if (! NILP (also_record)) | |
3052 | record_char (also_record); | |
51172b6d | 3053 | |
d5eecefb RS |
3054 | /* Wipe the echo area. |
3055 | But first, if we are about to use an input method, | |
3056 | save the echo area contents for it to refer to. */ | |
3057 | if (INTEGERP (c) | |
3058 | && ! NILP (Vinput_method_function) | |
3059 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
3060 | && (unsigned) XINT (c) != 127 |
3061 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
3062 | { |
3063 | previous_echo_area_message = Fcurrent_message (); | |
3064 | Vinput_method_previous_message = previous_echo_area_message; | |
3065 | } | |
d5eecefb | 3066 | |
1172eb8d GM |
3067 | /* Now wipe the echo area, except for help events which do their |
3068 | own stuff with the echo area. */ | |
4d2e9f95 GM |
3069 | if (!CONSP (c) |
3070 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
3071 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
3072 | { |
3073 | if (!NILP (echo_area_buffer[0])) | |
3074 | safe_run_hooks (Qecho_area_clear_hook); | |
3075 | clear_message (1, 0); | |
3076 | } | |
d5eecefb | 3077 | |
7d18f9ae | 3078 | reread_for_input_method: |
284f4730 | 3079 | from_macro: |
7d18f9ae | 3080 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
3081 | if (INTEGERP (c) |
3082 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
3083 | /* Don't run the input method within a key sequence, |
3084 | after the first event of the key sequence. */ | |
3085 | && NILP (prev_event) | |
d5eecefb | 3086 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
3087 | && (unsigned) XINT (c) != 127 |
3088 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 3089 | { |
c60ee5e7 | 3090 | Lisp_Object keys; |
63020c46 | 3091 | int key_count, key_count_reset; |
d5eecefb | 3092 | struct gcpro gcpro1; |
aed13378 | 3093 | int count = SPECPDL_INDEX (); |
d5eecefb | 3094 | |
6e5742a0 RS |
3095 | /* Save the echo status. */ |
3096 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 3097 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 3098 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
3099 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
3100 | ||
22b94eeb | 3101 | #if 0 |
6e5742a0 RS |
3102 | if (before_command_restore_flag) |
3103 | { | |
3104 | this_command_key_count = before_command_key_count_1; | |
3105 | if (this_command_key_count < this_single_command_key_start) | |
3106 | this_single_command_key_start = this_command_key_count; | |
3107 | echo_truncate (before_command_echo_length_1); | |
3108 | before_command_restore_flag = 0; | |
3109 | } | |
22b94eeb | 3110 | #endif |
6e5742a0 RS |
3111 | |
3112 | /* Save the this_command_keys status. */ | |
3113 | key_count = this_command_key_count; | |
63020c46 | 3114 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
3115 | |
3116 | if (key_count > 0) | |
3117 | keys = Fcopy_sequence (this_command_keys); | |
3118 | else | |
3119 | keys = Qnil; | |
d5eecefb | 3120 | GCPRO1 (keys); |
6e5742a0 RS |
3121 | |
3122 | /* Clear out this_command_keys. */ | |
3123 | this_command_key_count = 0; | |
63020c46 | 3124 | this_command_key_count_reset = 0; |
6e5742a0 RS |
3125 | |
3126 | /* Now wipe the echo area. */ | |
985f9f66 | 3127 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 3128 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 3129 | clear_message (1, 0); |
6e5742a0 RS |
3130 | echo_truncate (0); |
3131 | ||
b638f328 RS |
3132 | /* If we are not reading a key sequence, |
3133 | never use the echo area. */ | |
3134 | if (maps == 0) | |
3135 | { | |
b638f328 RS |
3136 | specbind (Qinput_method_use_echo_area, Qt); |
3137 | } | |
3138 | ||
6e5742a0 | 3139 | /* Call the input method. */ |
d5eecefb | 3140 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
3141 | |
3142 | tem = unbind_to (count, tem); | |
3143 | ||
6e5742a0 RS |
3144 | /* Restore the saved echoing state |
3145 | and this_command_keys state. */ | |
3146 | this_command_key_count = key_count; | |
63020c46 | 3147 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
3148 | if (key_count > 0) |
3149 | this_command_keys = keys; | |
3150 | ||
3151 | cancel_echoing (); | |
3152 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 3153 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
3154 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
3155 | if (saved_immediate_echo) | |
3156 | echo_now (); | |
3157 | ||
d5eecefb | 3158 | UNGCPRO; |
6e5742a0 | 3159 | |
d5eecefb RS |
3160 | /* The input method can return no events. */ |
3161 | if (! CONSP (tem)) | |
7d18f9ae | 3162 | { |
d5eecefb | 3163 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
3164 | if (! NILP (previous_echo_area_message)) |
3165 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 3166 | goto retry; |
7d18f9ae | 3167 | } |
d5eecefb | 3168 | /* It returned one event or more. */ |
7539e11f | 3169 | c = XCAR (tem); |
d5eecefb | 3170 | Vunread_post_input_method_events |
7539e11f | 3171 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 3172 | } |
7c3bc944 | 3173 | |
7d18f9ae | 3174 | reread_first: |
284f4730 | 3175 | |
7ee32cda | 3176 | /* Display help if not echoing. */ |
1172eb8d | 3177 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3178 | { |
2190735a | 3179 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3180 | Lisp_Object help, object, position, window, tem; |
3181 | ||
3182 | tem = Fcdr (XCDR (c)); | |
3183 | help = Fcar (tem); | |
3184 | tem = Fcdr (tem); | |
3185 | window = Fcar (tem); | |
3186 | tem = Fcdr (tem); | |
3187 | object = Fcar (tem); | |
3188 | tem = Fcdr (tem); | |
3189 | position = Fcar (tem); | |
3190 | ||
2190735a | 3191 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3192 | |
3193 | /* We stopped being idle for this event; undo that. */ | |
5c12e63f | 3194 | timer_resume_idle (); |
7ee32cda GM |
3195 | goto retry; |
3196 | } | |
c60ee5e7 | 3197 | |
63020c46 RS |
3198 | if (! reread || this_command_key_count == 0 |
3199 | || this_command_key_count_reset) | |
e4fe371d | 3200 | { |
7d18f9ae RS |
3201 | |
3202 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3203 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3204 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3205 | && ! (EVENT_HAS_PARAMETERS (c) |
3206 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3207 | { | |
3208 | echo_char (c); | |
3209 | if (! NILP (also_record)) | |
3210 | echo_char (also_record); | |
3211 | /* Once we reread a character, echoing can happen | |
3212 | the next time we pause to read a new one. */ | |
985f9f66 | 3213 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3214 | } |
3215 | ||
3216 | /* Record this character as part of the current key. */ | |
3217 | add_command_key (c); | |
e4fe371d | 3218 | if (! NILP (also_record)) |
7d18f9ae | 3219 | add_command_key (also_record); |
e4fe371d | 3220 | } |
b8556aee | 3221 | |
284f4730 | 3222 | last_input_char = c; |
c43b1734 | 3223 | num_input_events++; |
284f4730 JB |
3224 | |
3225 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3226 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3227 | { |
3228 | Lisp_Object tem0; | |
aed13378 | 3229 | count = SPECPDL_INDEX (); |
284f4730 JB |
3230 | |
3231 | record_unwind_protect (Fset_window_configuration, | |
3232 | Fcurrent_window_configuration (Qnil)); | |
3233 | ||
3234 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3235 | if (STRINGP (tem0)) |
284f4730 JB |
3236 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3237 | ||
3238 | cancel_echoing (); | |
3cb81011 KH |
3239 | do |
3240 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3241 | while (BUFFERP (c)); |
ff11dfa1 | 3242 | /* Remove the help from the frame */ |
284f4730 | 3243 | unbind_to (count, Qnil); |
410d4de9 | 3244 | |
284f4730 JB |
3245 | redisplay (); |
3246 | if (EQ (c, make_number (040))) | |
3247 | { | |
3248 | cancel_echoing (); | |
3cb81011 KH |
3249 | do |
3250 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 3251 | while (BUFFERP (c)); |
284f4730 JB |
3252 | } |
3253 | } | |
3254 | ||
184c3d81 RS |
3255 | exit: |
3256 | RESUME_POLLING; | |
7c3bc944 | 3257 | RETURN_UNGCPRO (c); |
284f4730 JB |
3258 | } |
3259 | ||
8eb4d8ef RS |
3260 | /* Record a key that came from a mouse menu. |
3261 | Record it for echoing, for this-command-keys, and so on. */ | |
3262 | ||
3263 | static void | |
3264 | record_menu_key (c) | |
3265 | Lisp_Object c; | |
3266 | { | |
3267 | /* Wipe the echo area. */ | |
985f9f66 | 3268 | clear_message (1, 0); |
8eb4d8ef RS |
3269 | |
3270 | record_char (c); | |
3271 | ||
22b94eeb | 3272 | #if 0 |
8eb4d8ef RS |
3273 | before_command_key_count = this_command_key_count; |
3274 | before_command_echo_length = echo_length (); | |
22b94eeb | 3275 | #endif |
8eb4d8ef RS |
3276 | |
3277 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3278 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3279 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3280 | { |
3281 | echo_char (c); | |
3282 | ||
3283 | /* Once we reread a character, echoing can happen | |
3284 | the next time we pause to read a new one. */ | |
3285 | ok_to_echo_at_next_pause = 0; | |
3286 | } | |
3287 | ||
3288 | /* Record this character as part of the current key. */ | |
3289 | add_command_key (c); | |
3290 | ||
3291 | /* Re-reading in the middle of a command */ | |
3292 | last_input_char = c; | |
c43b1734 | 3293 | num_input_events++; |
8eb4d8ef RS |
3294 | } |
3295 | ||
ecb7cb34 KH |
3296 | /* Return 1 if should recognize C as "the help character". */ |
3297 | ||
3298 | int | |
3299 | help_char_p (c) | |
3300 | Lisp_Object c; | |
3301 | { | |
3302 | Lisp_Object tail; | |
3303 | ||
3304 | if (EQ (c, Vhelp_char)) | |
3305 | return 1; | |
7539e11f KR |
3306 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3307 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3308 | return 1; |
3309 | return 0; | |
3310 | } | |
3311 | ||
e4fe371d RS |
3312 | /* Record the input event C in various ways. */ |
3313 | ||
3314 | static void | |
3315 | record_char (c) | |
3316 | Lisp_Object c; | |
3317 | { | |
090c68b9 | 3318 | int recorded = 0; |
52be17cc | 3319 | |
090c68b9 KS |
3320 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3321 | { | |
3322 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3323 | events, we filter out repeated help-echo events, only store the | |
3324 | first and last in a series of mouse-movement events, and don't | |
3325 | store repeated help-echo events which are only separated by | |
3326 | mouse-movement events. */ | |
3327 | ||
3328 | Lisp_Object ev1, ev2, ev3; | |
3329 | int ix1, ix2, ix3; | |
c60ee5e7 | 3330 | |
090c68b9 KS |
3331 | if ((ix1 = recent_keys_index - 1) < 0) |
3332 | ix1 = NUM_RECENT_KEYS - 1; | |
3333 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3334 | |
090c68b9 KS |
3335 | if ((ix2 = ix1 - 1) < 0) |
3336 | ix2 = NUM_RECENT_KEYS - 1; | |
3337 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3338 | |
090c68b9 KS |
3339 | if ((ix3 = ix2 - 1) < 0) |
3340 | ix3 = NUM_RECENT_KEYS - 1; | |
3341 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3342 | |
090c68b9 KS |
3343 | if (EQ (XCAR (c), Qhelp_echo)) |
3344 | { | |
3345 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3346 | message, and a different help than the previously recorded |
090c68b9 KS |
3347 | event. */ |
3348 | Lisp_Object help, last_help; | |
3349 | ||
3350 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3351 | if (!STRINGP (help)) | |
3352 | recorded = 1; | |
3353 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3354 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3355 | recorded = 1; | |
3356 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3357 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3358 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3359 | recorded = -1; | |
3360 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3361 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3362 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3363 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3364 | recorded = -2; | |
3365 | } | |
3366 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3367 | { |
090c68b9 KS |
3368 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3369 | So additional mouse movement events replace the last element. */ | |
3370 | Lisp_Object last_window, window; | |
3371 | ||
3372 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3373 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3374 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3375 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3376 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3377 | { |
090c68b9 KS |
3378 | ASET (recent_keys, ix1, c); |
3379 | recorded = 1; | |
52be17cc GM |
3380 | } |
3381 | } | |
3382 | } | |
3383 | else | |
090c68b9 KS |
3384 | store_kbd_macro_char (c); |
3385 | ||
3386 | if (!recorded) | |
e8a50785 GM |
3387 | { |
3388 | total_keys++; | |
3389 | ASET (recent_keys, recent_keys_index, c); | |
3390 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3391 | recent_keys_index = 0; | |
3392 | } | |
090c68b9 KS |
3393 | else if (recorded < 0) |
3394 | { | |
3395 | /* We need to remove one or two events from recent_keys. | |
3396 | To do this, we simply put nil at those events and move the | |
3397 | recent_keys_index backwards over those events. Usually, | |
3398 | users will never see those nil events, as they will be | |
3399 | overwritten by the command keys entered to see recent_keys | |
3400 | (e.g. C-h l). */ | |
3401 | ||
3402 | while (recorded++ < 0 && total_keys > 0) | |
3403 | { | |
3404 | if (total_keys < NUM_RECENT_KEYS) | |
3405 | total_keys--; | |
3406 | if (--recent_keys_index < 0) | |
3407 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3408 | ASET (recent_keys, recent_keys_index, Qnil); | |
3409 | } | |
3410 | } | |
3411 | ||
3412 | num_nonmacro_input_events++; | |
c60ee5e7 | 3413 | |
e4fe371d RS |
3414 | /* Write c to the dribble file. If c is a lispy event, write |
3415 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3416 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3417 | if (dribble) | |
3418 | { | |
3419 | if (INTEGERP (c)) | |
3420 | { | |
3421 | if (XUINT (c) < 0x100) | |
3422 | putc (XINT (c), dribble); | |
3423 | else | |
6de34814 | 3424 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3425 | } |
3426 | else | |
3427 | { | |
3428 | Lisp_Object dribblee; | |
3429 | ||
3430 | /* If it's a structured event, take the event header. */ | |
3431 | dribblee = EVENT_HEAD (c); | |
3432 | ||
3433 | if (SYMBOLP (dribblee)) | |
3434 | { | |
3435 | putc ('<', dribble); | |
d5db4077 KR |
3436 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3437 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3438 | dribble); |
3439 | putc ('>', dribble); | |
3440 | } | |
3441 | } | |
3442 | ||
3443 | fflush (dribble); | |
3444 | } | |
e4fe371d RS |
3445 | } |
3446 | ||
284f4730 JB |
3447 | Lisp_Object |
3448 | print_help (object) | |
3449 | Lisp_Object object; | |
3450 | { | |
622de3e9 | 3451 | struct buffer *old = current_buffer; |
284f4730 | 3452 | Fprinc (object, Qnil); |
622de3e9 KH |
3453 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3454 | call0 (intern ("help-mode")); | |
3455 | set_buffer_internal (old); | |
284f4730 JB |
3456 | return Qnil; |
3457 | } | |
3458 | ||
3459 | /* Copy out or in the info on where C-g should throw to. | |
3460 | This is used when running Lisp code from within get_char, | |
3461 | in case get_char is called recursively. | |
3462 | See read_process_output. */ | |
3463 | ||
dfcf069d | 3464 | static void |
284f4730 JB |
3465 | save_getcjmp (temp) |
3466 | jmp_buf temp; | |
3467 | { | |
3468 | bcopy (getcjmp, temp, sizeof getcjmp); | |
3469 | } | |
3470 | ||
dfcf069d | 3471 | static void |
284f4730 JB |
3472 | restore_getcjmp (temp) |
3473 | jmp_buf temp; | |
3474 | { | |
3475 | bcopy (temp, getcjmp, sizeof getcjmp); | |
3476 | } | |
284f4730 | 3477 | \f |
2eb6bfbe RM |
3478 | #ifdef HAVE_MOUSE |
3479 | ||
284f4730 JB |
3480 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
3481 | of this function. */ | |
a9d77f1f | 3482 | |
284f4730 JB |
3483 | static Lisp_Object |
3484 | tracking_off (old_value) | |
3485 | Lisp_Object old_value; | |
3486 | { | |
71edead1 RS |
3487 | do_mouse_tracking = old_value; |
3488 | if (NILP (old_value)) | |
284f4730 | 3489 | { |
284f4730 JB |
3490 | /* Redisplay may have been preempted because there was input |
3491 | available, and it assumes it will be called again after the | |
3492 | input has been processed. If the only input available was | |
3493 | the sort that we have just disabled, then we need to call | |
3494 | redisplay. */ | |
a2d5fca0 | 3495 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) |
284f4730 | 3496 | { |
3007ebfb | 3497 | redisplay_preserve_echo_area (6); |
a2d5fca0 JD |
3498 | get_input_pending (&input_pending, |
3499 | READABLE_EVENTS_DO_TIMERS_NOW); | |
284f4730 JB |
3500 | } |
3501 | } | |
30690496 | 3502 | return Qnil; |
284f4730 JB |
3503 | } |
3504 | ||
3505 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4707d2d0 PJ |
3506 | doc: /* Evaluate BODY with mouse movement events enabled. |
3507 | Within a `track-mouse' form, mouse motion generates input events that | |
3508 | you can read with `read-event'. | |
3509 | Normally, mouse motion is ignored. | |
3510 | usage: (track-mouse BODY ...) */) | |
3511 | (args) | |
284f4730 JB |
3512 | Lisp_Object args; |
3513 | { | |
aed13378 | 3514 | int count = SPECPDL_INDEX (); |
284f4730 JB |
3515 | Lisp_Object val; |
3516 | ||
a9d77f1f | 3517 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 3518 | |
f3253854 | 3519 | do_mouse_tracking = Qt; |
df0f2ba1 | 3520 | |
284f4730 JB |
3521 | val = Fprogn (args); |
3522 | return unbind_to (count, val); | |
3523 | } | |
2eb6bfbe | 3524 | |
f3253854 KH |
3525 | /* If mouse has moved on some frame, return one of those frames. |
3526 | Return 0 otherwise. */ | |
3527 | ||
3528 | static FRAME_PTR | |
3529 | some_mouse_moved () | |
3530 | { | |
3531 | Lisp_Object tail, frame; | |
3532 | ||
3533 | FOR_EACH_FRAME (tail, frame) | |
3534 | { | |
3535 | if (XFRAME (frame)->mouse_moved) | |
3536 | return XFRAME (frame); | |
3537 | } | |
3538 | ||
3539 | return 0; | |
3540 | } | |
3541 | ||
2eb6bfbe | 3542 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
3543 | \f |
3544 | /* Low level keyboard/mouse input. | |
3545 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3546 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
3547 | |
3548 | /* Return true iff there are any events in the queue that read-char | |
3549 | would return. If this returns false, a read-char would block. */ | |
3550 | static int | |
a2d5fca0 JD |
3551 | readable_events (flags) |
3552 | int flags; | |
a612e298 | 3553 | { |
a2d5fca0 JD |
3554 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3555 | timer_check (1); | |
4ec4ed6a | 3556 | |
a2d5fca0 JD |
3557 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3558 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3559 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3560 | { |
354344a2 YM |
3561 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3562 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3563 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3564 | #endif | |
3565 | )) | |
20057d52 JD |
3566 | { |
3567 | struct input_event *event; | |
3568 | ||
3569 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3570 | ? kbd_fetch_ptr | |
3571 | : kbd_buffer); | |
3572 | ||
354344a2 YM |
3573 | do |
3574 | { | |
3575 | if (!( | |
3576 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3577 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3578 | #endif | |
3579 | event->kind == FOCUS_IN_EVENT) | |
3580 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3581 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3582 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3583 | && event->part == scroll_bar_handle | |
3584 | && event->modifiers == 0) | |
3585 | #endif | |
3586 | ) | |
3587 | return 1; | |
3588 | event++; | |
20057d52 JD |
3589 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3590 | event = kbd_buffer; | |
354344a2 YM |
3591 | } |
3592 | while (event != kbd_store_ptr); | |
20057d52 | 3593 | } |
354344a2 YM |
3594 | else |
3595 | return 1; | |
a0ba8995 RS |
3596 | } |
3597 | ||
beecf6a1 | 3598 | #ifdef HAVE_MOUSE |
a2d5fca0 JD |
3599 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3600 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3601 | return 1; |
3602 | #endif | |
1e8bd3da | 3603 | if (single_kboard) |
4c52b668 | 3604 | { |
c5fdd383 | 3605 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3606 | return 1; |
3607 | } | |
3608 | else | |
3609 | { | |
c5fdd383 KH |
3610 | KBOARD *kb; |
3611 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3612 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3613 | return 1; |
3614 | } | |
beecf6a1 | 3615 | return 0; |
a612e298 RS |
3616 | } |
3617 | ||
3618 | /* Set this for debugging, to have a way to get out */ | |
3619 | int stop_character; | |
284f4730 | 3620 | |
c5fdd383 KH |
3621 | #ifdef MULTI_KBOARD |
3622 | static KBOARD * | |
3623 | event_to_kboard (event) | |
5798cf15 KH |
3624 | struct input_event *event; |
3625 | { | |
3626 | Lisp_Object frame; | |
3627 | frame = event->frame_or_window; | |
3628 | if (CONSP (frame)) | |
7539e11f | 3629 | frame = XCAR (frame); |
5798cf15 KH |
3630 | else if (WINDOWP (frame)) |
3631 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3632 | ||
3633 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3634 | For now, just ignore the problem. |
3635 | Also ignore dead frames here. */ | |
3636 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3637 | return 0; |
3638 | else | |
c5fdd383 | 3639 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
3640 | } |
3641 | #endif | |
3642 | ||
2a84c6da KS |
3643 | |
3644 | Lisp_Object Vthrow_on_input; | |
3645 | ||
284f4730 JB |
3646 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
3647 | ||
3648 | void | |
3649 | kbd_buffer_store_event (event) | |
3650 | register struct input_event *event; | |
0fc0bac9 KS |
3651 | { |
3652 | kbd_buffer_store_event_hold (event, 0); | |
3653 | } | |
3654 | ||
3655 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3656 | ||
3657 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3658 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3659 | Else, if EVENT is a quit event, store the quit event | |
3660 | in HOLD_QUIT, and return (thus ignoring further events). | |
3661 | ||
3662 | This is used in read_avail_input to postpone the processing | |
3663 | of the quit event until all subsequent input events have been | |
3664 | parsed (and discarded). | |
3665 | */ | |
3666 | ||
3667 | void | |
3668 | kbd_buffer_store_event_hold (event, hold_quit) | |
3669 | register struct input_event *event; | |
3670 | struct input_event *hold_quit; | |
284f4730 | 3671 | { |
3b8f9651 | 3672 | if (event->kind == NO_EVENT) |
284f4730 JB |
3673 | abort (); |
3674 | ||
0fc0bac9 KS |
3675 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3676 | return; | |
3677 | ||
3b8f9651 | 3678 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3679 | { |
e9bf89a0 | 3680 | register int c = event->code & 0377; |
284f4730 | 3681 | |
faf5e407 JB |
3682 | if (event->modifiers & ctrl_modifier) |
3683 | c = make_ctrl_char (c); | |
3684 | ||
9fd7d808 RS |
3685 | c |= (event->modifiers |
3686 | & (meta_modifier | alt_modifier | |
3687 | | hyper_modifier | super_modifier)); | |
3688 | ||
86e5706b | 3689 | if (c == quit_char) |
284f4730 | 3690 | { |
c5fdd383 KH |
3691 | #ifdef MULTI_KBOARD |
3692 | KBOARD *kb; | |
5798cf15 KH |
3693 | struct input_event *sp; |
3694 | ||
1e8bd3da | 3695 | if (single_kboard |
c5fdd383 KH |
3696 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
3697 | kb != current_kboard)) | |
5798cf15 | 3698 | { |
c5fdd383 | 3699 | kb->kbd_queue |
5798cf15 KH |
3700 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3701 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3702 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3703 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3704 | { | |
3705 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3706 | sp = kbd_buffer; | |
3707 | ||
c5fdd383 | 3708 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3709 | { |
3b8f9651 | 3710 | sp->kind = NO_EVENT; |
5798cf15 | 3711 | sp->frame_or_window = Qnil; |
da8f7368 | 3712 | sp->arg = Qnil; |
5798cf15 KH |
3713 | } |
3714 | } | |
3715 | return; | |
3716 | } | |
3717 | #endif | |
3e51c7b7 | 3718 | |
0fc0bac9 KS |
3719 | if (hold_quit) |
3720 | { | |
3721 | bcopy (event, (char *) hold_quit, sizeof (*event)); | |
3722 | return; | |
3723 | } | |
3724 | ||
284f4730 | 3725 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3726 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3727 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3728 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3729 | { |
9b8eb840 | 3730 | Lisp_Object focus; |
4bb994d1 | 3731 | |
9b8eb840 | 3732 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3733 | if (NILP (focus)) |
beecf6a1 | 3734 | focus = event->frame_or_window; |
4c52b668 KH |
3735 | internal_last_event_frame = focus; |
3736 | Vlast_event_frame = focus; | |
4bb994d1 | 3737 | } |
3e51c7b7 | 3738 | |
ffd56f97 | 3739 | last_event_timestamp = event->timestamp; |
114a8b8c | 3740 | handle_interrupt (); |
284f4730 JB |
3741 | return; |
3742 | } | |
3743 | ||
3744 | if (c && c == stop_character) | |
3745 | { | |
3746 | sys_suspend (); | |
3747 | return; | |
3748 | } | |
284f4730 | 3749 | } |
3b8f9651 | 3750 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3751 | Just ignore the second one. */ |
3b8f9651 | 3752 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3753 | && kbd_fetch_ptr != kbd_store_ptr |
0fc0bac9 KS |
3754 | && ((kbd_store_ptr == kbd_buffer |
3755 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3756 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3757 | return; |
284f4730 | 3758 | |
beecf6a1 KH |
3759 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3760 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3761 | |
3762 | /* Don't let the very last slot in the buffer become full, | |
3763 | since that would make the two pointers equal, | |
3764 | and that is indistinguishable from an empty buffer. | |
3765 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3766 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3767 | { |
e3f6e7c7 KS |
3768 | *kbd_store_ptr = *event; |
3769 | ++kbd_store_ptr; | |
3770 | } | |
2a84c6da | 3771 | |
85e7f477 RS |
3772 | /* If we're inside while-no-input, and this event qualifies |
3773 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3774 | if (!NILP (Vthrow_on_input) |
3775 | && event->kind != FOCUS_IN_EVENT | |
3776 | && event->kind != HELP_EVENT | |
3777 | && event->kind != DEICONIFY_EVENT) | |
85e7f477 RS |
3778 | { |
3779 | Vquit_flag = Vthrow_on_input; | |
3780 | /* If we're inside a function that wants immediate quits, | |
3781 | do it now. */ | |
3782 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3783 | { | |
3784 | immediate_quit = 0; | |
3785 | sigfree (); | |
3786 | QUIT; | |
3787 | } | |
3788 | } | |
e3f6e7c7 | 3789 | } |
c60ee5e7 | 3790 | |
da8f7368 | 3791 | |
e3f6e7c7 | 3792 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3793 | |
e3f6e7c7 KS |
3794 | void |
3795 | kbd_buffer_unget_event (event) | |
3796 | register struct input_event *event; | |
3797 | { | |
3798 | if (kbd_fetch_ptr == kbd_buffer) | |
3799 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3800 | ||
3801 | /* Don't let the very last slot in the buffer become full, */ | |
3802 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3803 | { | |
3804 | --kbd_fetch_ptr; | |
3805 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3806 | } |
3807 | } | |
8dfd92c9 GM |
3808 | |
3809 | ||
f139e559 | 3810 | /* Generate HELP_EVENT input_events in BUFP which has room for |
0bbfdc25 GM |
3811 | SIZE events. If there's not enough room in BUFP, ignore this |
3812 | event. | |
8dfd92c9 GM |
3813 | |
3814 | HELP is the help form. | |
3815 | ||
3816 | FRAME is the frame on which the help is generated. OBJECT is the | |
5b2ec2d0 GM |
3817 | Lisp object where the help was found (a buffer, a string, an |
3818 | overlay, or nil if neither from a string nor from a buffer. POS is | |
3819 | the position within OBJECT where the help was found. | |
8dfd92c9 GM |
3820 | |
3821 | Value is the number of input_events generated. */ | |
3822 | ||
0fc0bac9 KS |
3823 | void |
3824 | gen_help_event (help, frame, window, object, pos) | |
2190735a | 3825 | Lisp_Object help, frame, object, window; |
8dfd92c9 GM |
3826 | int pos; |
3827 | { | |
0fc0bac9 KS |
3828 | struct input_event event; |
3829 | ||
3830 | EVENT_INIT (event); | |
3831 | ||
3832 | event.kind = HELP_EVENT; | |
3833 | event.frame_or_window = frame; | |
3834 | event.arg = object; | |
3835 | event.x = WINDOWP (window) ? window : frame; | |
3836 | event.y = help; | |
3837 | event.code = pos; | |
3838 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3839 | } |
3840 | ||
3841 | ||
3842 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3843 | ||
3844 | void | |
3845 | kbd_buffer_store_help_event (frame, help) | |
3846 | Lisp_Object frame, help; | |
3847 | { | |
3848 | struct input_event event; | |
3849 | ||
3850 | event.kind = HELP_EVENT; | |
3851 | event.frame_or_window = frame; | |
3852 | event.arg = Qnil; | |
2e1a49ad SM |
3853 | event.x = Qnil; |
3854 | event.y = help; | |
8dfd92c9 GM |
3855 | event.code = 0; |
3856 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3857 | } |
3858 | ||
a612e298 | 3859 | \f |
07de30b9 | 3860 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3861 | NO_EVENT. */ |
07de30b9 GV |
3862 | void |
3863 | discard_mouse_events () | |
3864 | { | |
3865 | struct input_event *sp; | |
3866 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3867 | { | |
3868 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3869 | sp = kbd_buffer; | |
3870 | ||
3b8f9651 | 3871 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3872 | || sp->kind == WHEEL_EVENT |
07de30b9 | 3873 | #ifdef WINDOWSNT |
3b8f9651 | 3874 | || sp->kind == W32_SCROLL_BAR_CLICK_EVENT |
07de30b9 | 3875 | #endif |
3b8f9651 | 3876 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3877 | { |
3b8f9651 | 3878 | sp->kind = NO_EVENT; |
07de30b9 GV |
3879 | } |
3880 | } | |
3881 | } | |
eeabfe76 | 3882 | |
0bbfdc25 GM |
3883 | |
3884 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3885 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3886 | |
3b8f9651 | 3887 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3888 | the input queue, possibly leaving the input queue empty if there |
3889 | are no real input events. */ | |
3890 | ||
eeabfe76 EZ |
3891 | int |
3892 | kbd_buffer_events_waiting (discard) | |
3893 | int discard; | |
3894 | { | |
3895 | struct input_event *sp; | |
c60ee5e7 | 3896 | |
0bbfdc25 | 3897 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3898 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3899 | ++sp) |
eeabfe76 EZ |
3900 | { |
3901 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3902 | sp = kbd_buffer; | |
eeabfe76 | 3903 | } |
0bbfdc25 | 3904 | |
eeabfe76 EZ |
3905 | if (discard) |
3906 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3907 | |
3b8f9651 | 3908 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3909 | } |
0bbfdc25 | 3910 | |
07de30b9 | 3911 | \f |
0bbfdc25 GM |
3912 | /* Clear input event EVENT. */ |
3913 | ||
3914 | static INLINE void | |
3915 | clear_event (event) | |
3916 | struct input_event *event; | |
3917 | { | |
3b8f9651 | 3918 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3919 | } |
3920 | ||
3921 | ||
a612e298 RS |
3922 | /* Read one event from the event buffer, waiting if necessary. |
3923 | The value is a Lisp object representing the event. | |
3924 | The value is nil for an event that should be ignored, | |
3925 | or that was handled here. | |
3926 | We always read and discard one event. */ | |
284f4730 JB |
3927 | |
3928 | static Lisp_Object | |
83d68044 | 3929 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 3930 | KBOARD **kbp; |
83d68044 | 3931 | int *used_mouse_menu; |
284f4730 JB |
3932 | { |
3933 | register int c; | |
3934 | Lisp_Object obj; | |
3935 | ||
3936 | if (noninteractive) | |
3937 | { | |
3938 | c = getchar (); | |
18cd2eeb | 3939 | XSETINT (obj, c); |
f5b56972 | 3940 | *kbp = current_kboard; |
284f4730 JB |
3941 | return obj; |
3942 | } | |
3943 | ||
3944 | /* Wait until there is input available. */ | |
3945 | for (;;) | |
3946 | { | |
beecf6a1 KH |
3947 | if (kbd_fetch_ptr != kbd_store_ptr) |
3948 | break; | |
3949 | #ifdef HAVE_MOUSE | |
f3253854 | 3950 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3951 | break; |
beecf6a1 | 3952 | #endif |
284f4730 JB |
3953 | |
3954 | /* If the quit flag is set, then read_char will return | |
3955 | quit_char, so that counts as "available input." */ | |
3956 | if (!NILP (Vquit_flag)) | |
3957 | quit_throw_to_read_char (); | |
3958 | ||
3959 | /* One way or another, wait until input is available; then, if | |
3960 | interrupt handlers have not read it, read it now. */ | |
3961 | ||
3962 | #ifdef OLDVMS | |
3963 | wait_for_kbd_input (); | |
3964 | #else | |
3965 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3966 | #ifdef SIGIO | |
3967 | gobble_input (0); | |
3968 | #endif /* SIGIO */ | |
beecf6a1 KH |
3969 | if (kbd_fetch_ptr != kbd_store_ptr) |
3970 | break; | |
3971 | #ifdef HAVE_MOUSE | |
f3253854 | 3972 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3973 | break; |
3974 | #endif | |
3975 | { | |
d64b707c | 3976 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 3977 | |
beecf6a1 KH |
3978 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3979 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3980 | read_avail_input (1); | |
3981 | } | |
284f4730 JB |
3982 | #endif /* not VMS */ |
3983 | } | |
3984 | ||
303b5b3f RS |
3985 | if (CONSP (Vunread_command_events)) |
3986 | { | |
3987 | Lisp_Object first; | |
7539e11f KR |
3988 | first = XCAR (Vunread_command_events); |
3989 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3990 | *kbp = current_kboard; |
3991 | return first; | |
3992 | } | |
3993 | ||
284f4730 JB |
3994 | /* At this point, we know that there is a readable event available |
3995 | somewhere. If the event queue is empty, then there must be a | |
3996 | mouse movement enabled and available. */ | |
beecf6a1 | 3997 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3998 | { |
cd21b839 | 3999 | struct input_event *event; |
3e51c7b7 | 4000 | |
beecf6a1 KH |
4001 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4002 | ? kbd_fetch_ptr | |
4003 | : kbd_buffer); | |
3e51c7b7 | 4004 | |
cd21b839 | 4005 | last_event_timestamp = event->timestamp; |
cd21b839 | 4006 | |
c5fdd383 KH |
4007 | #ifdef MULTI_KBOARD |
4008 | *kbp = event_to_kboard (event); | |
4009 | if (*kbp == 0) | |
4010 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 4011 | #else |
c5fdd383 | 4012 | *kbp = &the_only_kboard; |
5798cf15 | 4013 | #endif |
beecf6a1 | 4014 | |
4bb994d1 JB |
4015 | obj = Qnil; |
4016 | ||
48e416d4 | 4017 | /* These two kinds of events get special handling |
a612e298 RS |
4018 | and don't actually appear to the command loop. |
4019 | We return nil for them. */ | |
e3f6e7c7 KS |
4020 | if (event->kind == SELECTION_REQUEST_EVENT |
4021 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 4022 | { |
598a9fa7 | 4023 | #ifdef HAVE_X11 |
1e8bd3da RS |
4024 | struct input_event copy; |
4025 | ||
4581e928 RS |
4026 | /* Remove it from the buffer before processing it, |
4027 | since otherwise swallow_events will see it | |
4028 | and process it again. */ | |
1e8bd3da | 4029 | copy = *event; |
beecf6a1 | 4030 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4031 | input_pending = readable_events (0); |
e3f6e7c7 | 4032 | x_handle_selection_event (©); |
598a9fa7 JB |
4033 | #else |
4034 | /* We're getting selection request events, but we don't have | |
4035 | a window system. */ | |
4036 | abort (); | |
4037 | #endif | |
48e416d4 RS |
4038 | } |
4039 | ||
e0f712ba | 4040 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 4041 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 4042 | { |
bbdc2092 RS |
4043 | /* Make an event (delete-frame (FRAME)). */ |
4044 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 4045 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 4046 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4047 | } |
1a578e9b | 4048 | #endif |
fca32d15 | 4049 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS) |
3b8f9651 | 4050 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
4051 | { |
4052 | /* Make an event (iconify-frame (FRAME)). */ | |
4053 | obj = Fcons (event->frame_or_window, Qnil); | |
4054 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 4055 | kbd_fetch_ptr = event + 1; |
af17bd2b | 4056 | } |
3b8f9651 | 4057 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
4058 | { |
4059 | /* Make an event (make-frame-visible (FRAME)). */ | |
4060 | obj = Fcons (event->frame_or_window, Qnil); | |
4061 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 4062 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
4063 | } |
4064 | #endif | |
3b8f9651 | 4065 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
4066 | { |
4067 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 4068 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 4069 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 4070 | } |
488dd4c4 JD |
4071 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
4072 | || defined (USE_GTK) | |
3b8f9651 | 4073 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
4074 | { |
4075 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 4076 | input_pending = readable_events (0); |
e649d076 RS |
4077 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
4078 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 4079 | } |
1161d367 | 4080 | #endif |
c16dab62 | 4081 | #if defined (WINDOWSNT) || defined (MAC_OS) |
3b8f9651 | 4082 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 | 4083 | { |
c16dab62 YM |
4084 | #ifdef MAC_OS |
4085 | /* Make an event (language-change (KEY_SCRIPT)). */ | |
4086 | obj = Fcons (make_number (event->code), Qnil); | |
4087 | #else | |
1161d367 | 4088 | /* Make an event (language-change (FRAME CHARSET LCID)). */ |
d352abdf | 4089 | obj = Fcons (event->frame_or_window, Qnil); |
c16dab62 | 4090 | #endif |
1161d367 GV |
4091 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
4092 | kbd_fetch_ptr = event + 1; | |
4093 | } | |
099787c1 | 4094 | #endif |
3b8f9651 | 4095 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 JD |
4096 | { |
4097 | obj = Fcons (Qsave_session, Qnil); | |
4098 | kbd_fetch_ptr = event + 1; | |
4099 | } | |
a612e298 | 4100 | /* Just discard these, by returning nil. |
c5fdd383 | 4101 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
4102 | when we need to randomly delete events from the queue. |
4103 | (They shouldn't otherwise be found in the buffer, | |
4104 | but on some machines it appears they do show up | |
c5fdd383 | 4105 | even without MULTI_KBOARD.) */ |
3b8f9651 | 4106 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 4107 | mouse events during a popup-menu call. */ |
3b8f9651 | 4108 | else if (event->kind == NO_EVENT) |
beecf6a1 | 4109 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
4110 | else if (event->kind == HELP_EVENT) |
4111 | { | |
2190735a | 4112 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 4113 | |
8dfd92c9 GM |
4114 | frame = event->frame_or_window; |
4115 | object = event->arg; | |
2e1a49ad SM |
4116 | position = make_number (event->code); |
4117 | window = event->x; | |
4118 | help = event->y; | |
0bbfdc25 | 4119 | clear_event (event); |
e4457b09 GM |
4120 | |
4121 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
4122 | if (!WINDOWP (window)) |
4123 | window = Qnil; | |
4124 | obj = Fcons (Qhelp_echo, | |
4125 | list5 (frame, help, window, object, position)); | |
7ee32cda | 4126 | } |
c51c7093 GM |
4127 | else if (event->kind == FOCUS_IN_EVENT) |
4128 | { | |
4129 | /* Notification of a FocusIn event. The frame receiving the | |
4130 | focus is in event->frame_or_window. Generate a | |
4131 | switch-frame event if necessary. */ | |
4132 | Lisp_Object frame, focus; | |
4133 | ||
4134 | frame = event->frame_or_window; | |
4135 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
4136 | if (FRAMEP (focus)) | |
4137 | frame = focus; | |
4138 | ||
4139 | if (!EQ (frame, internal_last_event_frame) | |
4140 | && !EQ (frame, selected_frame)) | |
4141 | obj = make_lispy_switch_frame (frame); | |
4142 | internal_last_event_frame = frame; | |
4143 | kbd_fetch_ptr = event + 1; | |
4144 | } | |
1e12dd87 RS |
4145 | else |
4146 | { | |
c51c7093 GM |
4147 | /* If this event is on a different frame, return a switch-frame this |
4148 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 4149 | Lisp_Object frame; |
1e12dd87 | 4150 | Lisp_Object focus; |
7b4aedb9 | 4151 | |
9b8eb840 | 4152 | frame = event->frame_or_window; |
2470a66f | 4153 | if (CONSP (frame)) |
7539e11f | 4154 | frame = XCAR (frame); |
2470a66f | 4155 | else if (WINDOWP (frame)) |
1e12dd87 | 4156 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 4157 | |
1e12dd87 RS |
4158 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
4159 | if (! NILP (focus)) | |
4160 | frame = focus; | |
07d2b8de | 4161 | |
4c52b668 | 4162 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4163 | && !EQ (frame, selected_frame)) |
1e12dd87 | 4164 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4165 | internal_last_event_frame = frame; |
4bb994d1 | 4166 | |
1e12dd87 RS |
4167 | /* If we didn't decide to make a switch-frame event, go ahead |
4168 | and build a real event from the queue entry. */ | |
cd21b839 | 4169 | |
1e12dd87 RS |
4170 | if (NILP (obj)) |
4171 | { | |
4172 | obj = make_lispy_event (event); | |
c60ee5e7 | 4173 | |
488dd4c4 JD |
4174 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \ |
4175 | || defined (USE_GTK) | |
83d68044 KH |
4176 | /* If this was a menu selection, then set the flag to inhibit |
4177 | writing to last_nonmenu_event. Don't do this if the event | |
4178 | we're returning is (menu-bar), though; that indicates the | |
4179 | beginning of the menu sequence, and we might as well leave | |
4180 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4181 | if (used_mouse_menu |
4182 | && !EQ (event->frame_or_window, event->arg) | |
4183 | && (event->kind == MENU_BAR_EVENT | |
4184 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4185 | *used_mouse_menu = 1; |
4186 | #endif | |
1e12dd87 RS |
4187 | |
4188 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4189 | clear_event (event); |
beecf6a1 | 4190 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4191 | } |
4bb994d1 | 4192 | } |
284f4730 | 4193 | } |
2eb6bfbe | 4194 | #ifdef HAVE_MOUSE |
a612e298 | 4195 | /* Try generating a mouse motion event. */ |
f3253854 | 4196 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4197 | { |
f3253854 | 4198 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4199 | Lisp_Object bar_window; |
3c370943 | 4200 | enum scroll_bar_part part; |
e5d77022 JB |
4201 | Lisp_Object x, y; |
4202 | unsigned long time; | |
284f4730 | 4203 | |
c5fdd383 | 4204 | *kbp = current_kboard; |
e177ac3a RS |
4205 | /* Note that this uses F to determine which display to look at. |
4206 | If there is no valid info, it does not store anything | |
4207 | so x remains nil. */ | |
4208 | x = Qnil; | |
3b7fbceb | 4209 | |
c3b4957f | 4210 | /* XXX Can f or mouse_position_hook be NULL here? */ |
7e59217d KL |
4211 | if (f && FRAME_DEVICE (f)->mouse_position_hook) |
4212 | (*FRAME_DEVICE (f)->mouse_position_hook) (&f, 0, &bar_window, | |
4213 | &part, &x, &y, &time); | |
4bb994d1 JB |
4214 | |
4215 | obj = Qnil; | |
284f4730 | 4216 | |
4bb994d1 JB |
4217 | /* Decide if we should generate a switch-frame event. Don't |
4218 | generate switch-frame events for motion outside of all Emacs | |
4219 | frames. */ | |
e177ac3a | 4220 | if (!NILP (x) && f) |
cd21b839 | 4221 | { |
9b8eb840 | 4222 | Lisp_Object frame; |
4bb994d1 | 4223 | |
9b8eb840 | 4224 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4225 | if (NILP (frame)) |
18cd2eeb | 4226 | XSETFRAME (frame, f); |
4bb994d1 | 4227 | |
4c52b668 | 4228 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4229 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4230 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4231 | internal_last_event_frame = frame; |
cd21b839 | 4232 | } |
4bb994d1 | 4233 | |
df0f2ba1 | 4234 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4235 | return a mouse-motion event. */ |
e177ac3a | 4236 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4237 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4238 | } |
2eb6bfbe | 4239 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
4240 | else |
4241 | /* We were promised by the above while loop that there was | |
4242 | something for us to read! */ | |
4243 | abort (); | |
4244 | ||
d9d4c147 | 4245 | input_pending = readable_events (0); |
284f4730 | 4246 | |
4c52b668 | 4247 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4248 | |
284f4730 JB |
4249 | return (obj); |
4250 | } | |
a612e298 RS |
4251 | \f |
4252 | /* Process any events that are not user-visible, | |
4253 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4254 | |
4255 | void | |
d9d4c147 KH |
4256 | swallow_events (do_display) |
4257 | int do_display; | |
3a3b9632 | 4258 | { |
87dd9b9b RS |
4259 | int old_timers_run; |
4260 | ||
beecf6a1 | 4261 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4262 | { |
4263 | struct input_event *event; | |
4264 | ||
beecf6a1 KH |
4265 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4266 | ? kbd_fetch_ptr | |
4267 | : kbd_buffer); | |
3a3b9632 RS |
4268 | |
4269 | last_event_timestamp = event->timestamp; | |
4270 | ||
4271 | /* These two kinds of events get special handling | |
4272 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4273 | if (event->kind == SELECTION_REQUEST_EVENT |
4274 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4275 | { |
4276 | #ifdef HAVE_X11 | |
4581e928 | 4277 | struct input_event copy; |
e0301c07 RS |
4278 | |
4279 | /* Remove it from the buffer before processing it, | |
4280 | since otherwise swallow_events called recursively could see it | |
4281 | and process it again. */ | |
4581e928 | 4282 | copy = *event; |
beecf6a1 | 4283 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4284 | input_pending = readable_events (0); |
e3f6e7c7 | 4285 | x_handle_selection_event (©); |
3a3b9632 RS |
4286 | #else |
4287 | /* We're getting selection request events, but we don't have | |
4288 | a window system. */ | |
4289 | abort (); | |
4290 | #endif | |
4291 | } | |
4292 | else | |
4293 | break; | |
4294 | } | |
4295 | ||
87dd9b9b | 4296 | old_timers_run = timers_run; |
a2d5fca0 | 4297 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4298 | |
4299 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4300 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4301 | } |
a612e298 | 4302 | \f |
d9d4c147 KH |
4303 | /* Record the start of when Emacs is idle, |
4304 | for the sake of running idle-time timers. */ | |
4305 | ||
5c12e63f | 4306 | static void |
d9d4c147 KH |
4307 | timer_start_idle () |
4308 | { | |
4309 | Lisp_Object timers; | |
4310 | ||
4311 | /* If we are already in the idle state, do nothing. */ | |
4312 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4313 | return; | |
4314 | ||
4315 | EMACS_GET_TIME (timer_idleness_start_time); | |
4316 | ||
3021d3a9 RS |
4317 | timer_last_idleness_start_time = timer_idleness_start_time; |
4318 | ||
d9d4c147 | 4319 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4320 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4321 | { |
4322 | Lisp_Object timer; | |
4323 | ||
7539e11f | 4324 | timer = XCAR (timers); |
d9d4c147 KH |
4325 | |
4326 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4327 | continue; | |
4328 | XVECTOR (timer)->contents[0] = Qnil; | |
4329 | } | |
4330 | } | |
4331 | ||
4332 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4333 | ||
5c12e63f | 4334 | static void |
d9d4c147 KH |
4335 | timer_stop_idle () |
4336 | { | |
4337 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4338 | } | |
4339 | ||
5c12e63f KS |
4340 | /* Resume idle timer from last idle start time. */ |
4341 | ||
4342 | static void | |
4343 | timer_resume_idle () | |
4344 | { | |
4345 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4346 | return; | |
4347 | ||
4348 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4349 | } | |
4350 | ||
e044e87c RS |
4351 | /* This is only for debugging. */ |
4352 | struct input_event last_timer_event; | |
4353 | ||
c04cbc3b RS |
4354 | /* Check whether a timer has fired. To prevent larger problems we simply |
4355 | disregard elements that are not proper timers. Do not make a circular | |
4356 | timer list for the time being. | |
4357 | ||
4358 | Returns the number of seconds to wait until the next timer fires. If a | |
4359 | timer is triggering now, return zero seconds. | |
4360 | If no timer is active, return -1 seconds. | |
4361 | ||
4ec4ed6a RS |
4362 | If a timer is ripe, we run it, with quitting turned off. |
4363 | ||
4364 | DO_IT_NOW is now ignored. It used to mean that we should | |
4365 | run the timer directly instead of queueing a timer-event. | |
4366 | Now we always run timers directly. */ | |
c04cbc3b RS |
4367 | |
4368 | EMACS_TIME | |
4369 | timer_check (do_it_now) | |
4370 | int do_it_now; | |
4371 | { | |
4372 | EMACS_TIME nexttime; | |
9291c072 RS |
4373 | EMACS_TIME now, idleness_now; |
4374 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4375 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4376 | |
c04cbc3b RS |
4377 | EMACS_SET_SECS (nexttime, -1); |
4378 | EMACS_SET_USECS (nexttime, -1); | |
4379 | ||
9291c072 | 4380 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4381 | timers = Vtimer_list; |
9291c072 RS |
4382 | /* Consider the idle timers only if Emacs is idle. */ |
4383 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4384 | idle_timers = Vtimer_idle_list; | |
4385 | else | |
4386 | idle_timers = Qnil; | |
4387 | chosen_timer = Qnil; | |
4388 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4389 | |
9291c072 | 4390 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4391 | { |
9291c072 RS |
4392 | EMACS_GET_TIME (now); |
4393 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4394 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4395 | } | |
c04cbc3b | 4396 | |
9291c072 RS |
4397 | while (CONSP (timers) || CONSP (idle_timers)) |
4398 | { | |
9291c072 | 4399 | Lisp_Object *vector; |
8c907a56 | 4400 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4401 | EMACS_TIME timer_time, idle_timer_time; |
4402 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4403 | ||
4404 | /* Skip past invalid timers and timers already handled. */ | |
4405 | if (!NILP (timers)) | |
c04cbc3b | 4406 | { |
7539e11f | 4407 | timer = XCAR (timers); |
9291c072 RS |
4408 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4409 | { | |
7539e11f | 4410 | timers = XCDR (timers); |
9291c072 RS |
4411 | continue; |
4412 | } | |
4413 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4414 | |
9291c072 RS |
4415 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4416 | || !INTEGERP (vector[3]) | |
4417 | || ! NILP (vector[0])) | |
4418 | { | |
7539e11f | 4419 | timers = XCDR (timers); |
9291c072 RS |
4420 | continue; |
4421 | } | |
4422 | } | |
4423 | if (!NILP (idle_timers)) | |
4424 | { | |
7539e11f | 4425 | timer = XCAR (idle_timers); |
d9d4c147 | 4426 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4427 | { |
7539e11f | 4428 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4429 | continue; |
4430 | } | |
d9d4c147 KH |
4431 | vector = XVECTOR (timer)->contents; |
4432 | ||
4433 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4434 | || !INTEGERP (vector[3]) |
4435 | || ! NILP (vector[0])) | |
4436 | { | |
7539e11f | 4437 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4438 | continue; |
4439 | } | |
4440 | } | |
d9d4c147 | 4441 | |
9291c072 RS |
4442 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4443 | based on the next ordinary timer. | |
4444 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4445 | this timer becomes ripe (negative if it's already ripe). */ | |
4446 | if (!NILP (timers)) | |
4447 | { | |
7539e11f | 4448 | timer = XCAR (timers); |
9291c072 | 4449 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4450 | EMACS_SET_SECS (timer_time, |
4451 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4452 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4453 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4454 | } | |
ba8dfba8 | 4455 | |
9291c072 RS |
4456 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4457 | based on the next idle timer. */ | |
4458 | if (!NILP (idle_timers)) | |
4459 | { | |
7539e11f | 4460 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4461 | vector = XVECTOR (idle_timer)->contents; |
4462 | EMACS_SET_SECS (idle_timer_time, | |
4463 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4464 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4465 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4466 | } | |
ba8dfba8 | 4467 | |
9291c072 RS |
4468 | /* Decide which timer is the next timer, |
4469 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4470 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4471 | |
9291c072 RS |
4472 | if (! NILP (timers) && ! NILP (idle_timers)) |
4473 | { | |
4474 | EMACS_TIME temp; | |
4475 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4476 | if (EMACS_TIME_NEG_P (temp)) | |
4477 | { | |
4478 | chosen_timer = timer; | |
7539e11f | 4479 | timers = XCDR (timers); |
9291c072 | 4480 | difference = timer_difference; |
c04cbc3b | 4481 | } |
d9d4c147 | 4482 | else |
d9d4c147 | 4483 | { |
9291c072 | 4484 | chosen_timer = idle_timer; |
7539e11f | 4485 | idle_timers = XCDR (idle_timers); |
9291c072 | 4486 | difference = idle_timer_difference; |
d9d4c147 | 4487 | } |
7ea13e12 | 4488 | } |
9291c072 RS |
4489 | else if (! NILP (timers)) |
4490 | { | |
4491 | chosen_timer = timer; | |
7539e11f | 4492 | timers = XCDR (timers); |
9291c072 RS |
4493 | difference = timer_difference; |
4494 | } | |
4495 | else | |
4496 | { | |
4497 | chosen_timer = idle_timer; | |
7539e11f | 4498 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4499 | difference = idle_timer_difference; |
4500 | } | |
4501 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4502 | |
bd55b860 | 4503 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4504 | if (EMACS_TIME_NEG_P (difference) |
4505 | || (EMACS_SECS (difference) == 0 | |
4506 | && EMACS_USECS (difference) == 0)) | |
4507 | { | |
4508 | if (NILP (vector[0])) | |
4509 | { | |
331379bf | 4510 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4511 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4512 | |
256c9c3a KL |
4513 | /* On unbind_to, resume allowing input from any kboard, if that |
4514 | was true before. */ | |
4515 | record_single_kboard_state (); | |
4516 | ||
9291c072 RS |
4517 | /* Mark the timer as triggered to prevent problems if the lisp |
4518 | code fails to reschedule it right. */ | |
4519 | vector[0] = Qt; | |
4520 | ||
d925fb39 | 4521 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4522 | |
d925fb39 | 4523 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4524 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4525 | timers_run++; |
d925fb39 | 4526 | unbind_to (count, Qnil); |
4ec4ed6a | 4527 | |
d925fb39 RS |
4528 | /* Since we have handled the event, |
4529 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
4530 | } |
4531 | } | |
4532 | else | |
4533 | /* When we encounter a timer that is still waiting, | |
4534 | return the amount of time to wait before it is ripe. */ | |
4535 | { | |
4536 | UNGCPRO; | |
9291c072 RS |
4537 | return difference; |
4538 | } | |
c04cbc3b | 4539 | } |
9291c072 | 4540 | |
7ea13e12 RS |
4541 | /* No timers are pending in the future. */ |
4542 | /* Return 0 if we generated an event, and -1 if not. */ | |
4543 | UNGCPRO; | |
c04cbc3b RS |
4544 | return nexttime; |
4545 | } | |
4546 | \f | |
284f4730 | 4547 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4548 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4549 | static Lisp_Object func_key_syms; |
4550 | static Lisp_Object mouse_syms; | |
8006e4bb | 4551 | static Lisp_Object wheel_syms; |
a24dc617 | 4552 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4553 | |
e9bf89a0 RS |
4554 | /* This is a list of keysym codes for special "accent" characters. |
4555 | It parallels lispy_accent_keys. */ | |
4556 | ||
4557 | static int lispy_accent_codes[] = | |
4558 | { | |
79a7046c | 4559 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4560 | XK_dead_circumflex, |
79a7046c RS |
4561 | #else |
4562 | 0, | |
4563 | #endif | |
4564 | #ifdef XK_dead_grave | |
e9bf89a0 | 4565 | XK_dead_grave, |
79a7046c RS |
4566 | #else |
4567 | 0, | |
4568 | #endif | |
4569 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4570 | XK_dead_tilde, |
79a7046c RS |
4571 | #else |
4572 | 0, | |
4573 | #endif | |
4574 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4575 | XK_dead_diaeresis, |
79a7046c RS |
4576 | #else |
4577 | 0, | |
4578 | #endif | |
4579 | #ifdef XK_dead_macron | |
e9bf89a0 | 4580 | XK_dead_macron, |
79a7046c RS |
4581 | #else |
4582 | 0, | |
4583 | #endif | |
4584 | #ifdef XK_dead_degree | |
e9bf89a0 | 4585 | XK_dead_degree, |
79a7046c RS |
4586 | #else |
4587 | 0, | |
4588 | #endif | |
4589 | #ifdef XK_dead_acute | |
e9bf89a0 | 4590 | XK_dead_acute, |
79a7046c RS |
4591 | #else |
4592 | 0, | |
4593 | #endif | |
4594 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4595 | XK_dead_cedilla, |
79a7046c RS |
4596 | #else |
4597 | 0, | |
4598 | #endif | |
4599 | #ifdef XK_dead_breve | |
e9bf89a0 | 4600 | XK_dead_breve, |
79a7046c RS |
4601 | #else |
4602 | 0, | |
4603 | #endif | |
4604 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4605 | XK_dead_ogonek, |
79a7046c RS |
4606 | #else |
4607 | 0, | |
4608 | #endif | |
4609 | #ifdef XK_dead_caron | |
e9bf89a0 | 4610 | XK_dead_caron, |
79a7046c RS |
4611 | #else |
4612 | 0, | |
4613 | #endif | |
4614 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4615 | XK_dead_doubleacute, |
79a7046c RS |
4616 | #else |
4617 | 0, | |
4618 | #endif | |
4619 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4620 | XK_dead_abovedot, |
79a7046c RS |
4621 | #else |
4622 | 0, | |
4623 | #endif | |
ed3230db DL |
4624 | #ifdef XK_dead_abovering |
4625 | XK_dead_abovering, | |
4626 | #else | |
4627 | 0, | |
4628 | #endif | |
4629 | #ifdef XK_dead_iota | |
4630 | XK_dead_iota, | |
4631 | #else | |
4632 | 0, | |
4633 | #endif | |
4634 | #ifdef XK_dead_belowdot | |
4635 | XK_dead_belowdot, | |
4636 | #else | |
4637 | 0, | |
4638 | #endif | |
4639 | #ifdef XK_dead_voiced_sound | |
4640 | XK_dead_voiced_sound, | |
4641 | #else | |
4642 | 0, | |
4643 | #endif | |
4644 | #ifdef XK_dead_semivoiced_sound | |
4645 | XK_dead_semivoiced_sound, | |
4646 | #else | |
4647 | 0, | |
4648 | #endif | |
4649 | #ifdef XK_dead_hook | |
4650 | XK_dead_hook, | |
4651 | #else | |
4652 | 0, | |
4653 | #endif | |
4654 | #ifdef XK_dead_horn | |
4655 | XK_dead_horn, | |
4656 | #else | |
4657 | 0, | |
4658 | #endif | |
e9bf89a0 RS |
4659 | }; |
4660 | ||
4661 | /* This is a list of Lisp names for special "accent" characters. | |
4662 | It parallels lispy_accent_codes. */ | |
4663 | ||
4664 | static char *lispy_accent_keys[] = | |
4665 | { | |
4666 | "dead-circumflex", | |
4667 | "dead-grave", | |
4668 | "dead-tilde", | |
4669 | "dead-diaeresis", | |
4670 | "dead-macron", | |
4671 | "dead-degree", | |
4672 | "dead-acute", | |
4673 | "dead-cedilla", | |
4674 | "dead-breve", | |
4675 | "dead-ogonek", | |
4676 | "dead-caron", | |
4677 | "dead-doubleacute", | |
4678 | "dead-abovedot", | |
ed3230db DL |
4679 | "dead-abovering", |
4680 | "dead-iota", | |
4681 | "dead-belowdot", | |
4682 | "dead-voiced-sound", | |
4683 | "dead-semivoiced-sound", | |
4684 | "dead-hook", | |
4685 | "dead-horn", | |
e9bf89a0 RS |
4686 | }; |
4687 | ||
e98a93eb GV |
4688 | #ifdef HAVE_NTGUI |
4689 | #define FUNCTION_KEY_OFFSET 0x0 | |
4690 | ||
4691 | char *lispy_function_keys[] = | |
4692 | { | |
4693 | 0, /* 0 */ | |
c60ee5e7 | 4694 | |
e98a93eb GV |
4695 | 0, /* VK_LBUTTON 0x01 */ |
4696 | 0, /* VK_RBUTTON 0x02 */ | |
4697 | "cancel", /* VK_CANCEL 0x03 */ | |
4698 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4699 | |
e98a93eb | 4700 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4701 | |
e98a93eb GV |
4702 | "backspace", /* VK_BACK 0x08 */ |
4703 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4704 | |
e98a93eb | 4705 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4706 | |
e98a93eb GV |
4707 | "clear", /* VK_CLEAR 0x0C */ |
4708 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4709 | |
e98a93eb | 4710 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4711 | |
1161d367 GV |
4712 | 0, /* VK_SHIFT 0x10 */ |
4713 | 0, /* VK_CONTROL 0x11 */ | |
4714 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4715 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4716 | "capslock", /* VK_CAPITAL 0x14 */ |
c60ee5e7 | 4717 | |
e98a93eb | 4718 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ |
c60ee5e7 | 4719 | |
1161d367 | 4720 | "escape", /* VK_ESCAPE 0x1B */ |
c60ee5e7 | 4721 | |
e98a93eb | 4722 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ |
c60ee5e7 | 4723 | |
e98a93eb GV |
4724 | 0, /* VK_SPACE 0x20 */ |
4725 | "prior", /* VK_PRIOR 0x21 */ | |
4726 | "next", /* VK_NEXT 0x22 */ | |
4727 | "end", /* VK_END 0x23 */ | |
4728 | "home", /* VK_HOME 0x24 */ | |
4729 | "left", /* VK_LEFT 0x25 */ | |
4730 | "up", /* VK_UP 0x26 */ | |
4731 | "right", /* VK_RIGHT 0x27 */ | |
4732 | "down", /* VK_DOWN 0x28 */ | |
4733 | "select", /* VK_SELECT 0x29 */ | |
4734 | "print", /* VK_PRINT 0x2A */ | |
4735 | "execute", /* VK_EXECUTE 0x2B */ | |
4736 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4737 | "insert", /* VK_INSERT 0x2D */ | |
4738 | "delete", /* VK_DELETE 0x2E */ | |
4739 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4740 | |
e98a93eb | 4741 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4742 | |
e98a93eb | 4743 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4744 | |
e98a93eb | 4745 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4746 | |
e98a93eb | 4747 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4748 | |
4749 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4750 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4751 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4752 | |
e376f90d RS |
4753 | "lwindow", /* VK_LWIN 0x5B */ |
4754 | "rwindow", /* VK_RWIN 0x5C */ | |
4755 | "apps", /* VK_APPS 0x5D */ | |
c60ee5e7 | 4756 | |
e98a93eb | 4757 | 0, 0, /* 0x5E .. 0x5F */ |
c60ee5e7 | 4758 | |
e98a93eb GV |
4759 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4760 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4761 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4762 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4763 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4764 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4765 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4766 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4767 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4768 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4769 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4770 | "kp-add", /* VK_ADD 0x6B */ | |
4771 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4772 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4773 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4774 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4775 | "f1", /* VK_F1 0x70 */ | |
4776 | "f2", /* VK_F2 0x71 */ | |
4777 | "f3", /* VK_F3 0x72 */ | |
4778 | "f4", /* VK_F4 0x73 */ | |
4779 | "f5", /* VK_F5 0x74 */ | |
4780 | "f6", /* VK_F6 0x75 */ | |
4781 | "f7", /* VK_F7 0x76 */ | |
4782 | "f8", /* VK_F8 0x77 */ | |
4783 | "f9", /* VK_F9 0x78 */ | |
4784 | "f10", /* VK_F10 0x79 */ | |
4785 | "f11", /* VK_F11 0x7A */ | |
4786 | "f12", /* VK_F12 0x7B */ | |
4787 | "f13", /* VK_F13 0x7C */ | |
4788 | "f14", /* VK_F14 0x7D */ | |
4789 | "f15", /* VK_F15 0x7E */ | |
4790 | "f16", /* VK_F16 0x7F */ | |
4791 | "f17", /* VK_F17 0x80 */ | |
4792 | "f18", /* VK_F18 0x81 */ | |
4793 | "f19", /* VK_F19 0x82 */ | |
4794 | "f20", /* VK_F20 0x83 */ | |
4795 | "f21", /* VK_F21 0x84 */ | |
4796 | "f22", /* VK_F22 0x85 */ | |
4797 | "f23", /* VK_F23 0x86 */ | |
4798 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4799 | |
e98a93eb GV |
4800 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4801 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4802 | |
e98a93eb GV |
4803 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4804 | "scroll", /* VK_SCROLL 0x91 */ | |
c60ee5e7 | 4805 | |
e376f90d RS |
4806 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4807 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4808 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4809 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4810 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4811 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4812 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4813 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4814 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4815 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4816 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4817 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4818 | ||
4819 | 0, 0, /* 0x9E .. 0x9F */ | |
4820 | ||
e98a93eb GV |
4821 | /* |
4822 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4823 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
4824 | * No other API or message will distinguish left and right keys this way. |
4825 | */ | |
4826 | /* 0xA0 .. 0xEF */ | |
c60ee5e7 | 4827 | |
e98a93eb GV |
4828 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
4829 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4830 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4831 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4832 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4833 | |
e98a93eb | 4834 | /* 0xF0 .. 0xF5 */ |
c60ee5e7 | 4835 | |
e98a93eb | 4836 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4837 | |
e98a93eb GV |
4838 | "attn", /* VK_ATTN 0xF6 */ |
4839 | "crsel", /* VK_CRSEL 0xF7 */ | |
4840 | "exsel", /* VK_EXSEL 0xF8 */ | |
4841 | "ereof", /* VK_EREOF 0xF9 */ | |
4842 | "play", /* VK_PLAY 0xFA */ | |
4843 | "zoom", /* VK_ZOOM 0xFB */ | |
4844 | "noname", /* VK_NONAME 0xFC */ | |
4845 | "pa1", /* VK_PA1 0xFD */ | |
4846 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4847 | 0 /* 0xFF */ |
e98a93eb GV |
4848 | }; |
4849 | ||
04f215f0 | 4850 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4851 | |
ed3230db DL |
4852 | /* This should be dealt with in XTread_socket now, and that doesn't |
4853 | depend on the client system having the Kana syms defined. See also | |
4854 | the XK_kana_A case below. */ | |
4855 | #if 0 | |
37cd9f30 KH |
4856 | #ifdef XK_kana_A |
4857 | static char *lispy_kana_keys[] = | |
4858 | { | |
4859 | /* X Keysym value */ | |
4860 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4861 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4862 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4863 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4864 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4865 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4866 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4867 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4868 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4869 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 4870 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
4871 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
4872 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4873 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4874 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4875 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4876 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4877 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4878 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4879 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4880 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4881 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4882 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4883 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4884 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4885 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4886 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4887 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4888 | }; | |
4889 | #endif /* XK_kana_A */ | |
ed3230db | 4890 | #endif /* 0 */ |
37cd9f30 | 4891 | |
04f215f0 RS |
4892 | #define FUNCTION_KEY_OFFSET 0xff00 |
4893 | ||
284f4730 JB |
4894 | /* You'll notice that this table is arranged to be conveniently |
4895 | indexed by X Windows keysym values. */ | |
4896 | static char *lispy_function_keys[] = | |
4897 | { | |
4898 | /* X Keysym value */ | |
4899 | ||
75045dcb RS |
4900 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4901 | "backspace", "tab", "linefeed", "clear", | |
4902 | 0, "return", 0, 0, | |
4903 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4904 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4905 | 0, 0, 0, 0, |
75045dcb RS |
4906 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4907 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4908 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4909 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4910 | "eisu-toggle", /* 0xff30...3f */ | |
4911 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4912 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4913 | ||
75045dcb RS |
4914 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4915 | "down", "prior", "next", "end", | |
4916 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4917 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4918 | "print", | |
4919 | "execute", | |
4920 | "insert", | |
4921 | 0, /* 0xff64 */ | |
4922 | "undo", | |
4923 | "redo", | |
4924 | "menu", | |
4925 | "find", | |
4926 | "cancel", | |
4927 | "help", | |
4928 | "break", /* 0xff6b */ | |
4929 | ||
75045dcb RS |
4930 | 0, 0, 0, 0, |
4931 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4932 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4933 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4934 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4935 | "kp-tab", /* 0xff89 */ | |
4936 | 0, 0, 0, | |
4937 | "kp-enter", /* 0xff8d */ | |
4938 | 0, 0, 0, | |
4939 | "kp-f1", /* 0xff91 */ | |
4940 | "kp-f2", | |
4941 | "kp-f3", | |
4942 | "kp-f4", | |
872157e7 RS |
4943 | "kp-home", /* 0xff95 */ |
4944 | "kp-left", | |
4945 | "kp-up", | |
4946 | "kp-right", | |
4947 | "kp-down", | |
4948 | "kp-prior", /* kp-page-up */ | |
4949 | "kp-next", /* kp-page-down */ | |
4950 | "kp-end", | |
4951 | "kp-begin", | |
4952 | "kp-insert", | |
4953 | "kp-delete", | |
4954 | 0, /* 0xffa0 */ | |
4955 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4956 | "kp-multiply", /* 0xffaa */ |
4957 | "kp-add", | |
4958 | "kp-separator", | |
4959 | "kp-subtract", | |
4960 | "kp-decimal", | |
4961 | "kp-divide", /* 0xffaf */ | |
4962 | "kp-0", /* 0xffb0 */ | |
4963 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4964 | 0, /* 0xffba */ | |
4965 | 0, 0, | |
4966 | "kp-equal", /* 0xffbd */ | |
4967 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4968 | "f2", |
4969 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4970 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4971 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4972 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4973 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4974 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4975 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4976 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4977 | }; |
284f4730 | 4978 | |
04f215f0 RS |
4979 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4980 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4981 | ||
4982 | static char *iso_lispy_function_keys[] = | |
4983 | { | |
4984 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4985 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4986 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4987 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4988 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
4989 | "iso-move-line-up", "iso-move-line-down", |
4990 | "iso-partial-line-up", "iso-partial-line-down", | |
4991 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
4992 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
4993 | "iso-release-margin-left", "iso-release-margin-right", | |
4994 | "iso-release-both-margins", | |
4995 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4996 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4997 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4998 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4999 | }; | |
5000 | ||
5001 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 5002 | |
8e1e4240 | 5003 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 5004 | |
8006e4bb JR |
5005 | static char *lispy_wheel_names[] = |
5006 | { | |
5007 | "wheel-up", "wheel-down" | |
5008 | }; | |
5009 | ||
a24dc617 RS |
5010 | /* drag-n-drop events are generated when a set of selected files are |
5011 | dragged from another application and dropped onto an Emacs window. */ | |
5012 | static char *lispy_drag_n_drop_names[] = | |
5013 | { | |
5014 | "drag-n-drop" | |
5015 | }; | |
5016 | ||
3c370943 | 5017 | /* Scroll bar parts. */ |
4bb994d1 | 5018 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 5019 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 5020 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 5021 | |
3c370943 JB |
5022 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
5023 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 5024 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 5025 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
5026 | }; |
5027 | ||
5bf68f6e AS |
5028 | /* User signal events. */ |
5029 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
5030 | ||
5031 | Lisp_Object *lispy_user_signals[] = | |
5032 | { | |
5033 | &Qusr1_signal, &Qusr2_signal | |
5034 | }; | |
5035 | ||
4bb994d1 | 5036 | |
7b4aedb9 | 5037 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 5038 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
5039 | |
5040 | The elements have the form | |
5041 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
5042 | where REST is the cdr of a position as it would be reported in the event. | |
5043 | ||
5044 | The make_lispy_event function stores positions here to tell the | |
5045 | difference between click and drag events, and to store the starting | |
5046 | location to be included in drag events. */ | |
5047 | ||
5048 | static Lisp_Object button_down_location; | |
88cb0656 | 5049 | |
fbcd35bd JB |
5050 | /* Information about the most recent up-going button event: Which |
5051 | button, what location, and what time. */ | |
5052 | ||
559f9d04 RS |
5053 | static int last_mouse_button; |
5054 | static int last_mouse_x; | |
5055 | static int last_mouse_y; | |
5056 | static unsigned long button_down_time; | |
fbcd35bd | 5057 | |
222d557c GM |
5058 | /* The maximum time between clicks to make a double-click, or Qnil to |
5059 | disable double-click detection, or Qt for no time limit. */ | |
5060 | ||
564dc952 | 5061 | Lisp_Object Vdouble_click_time; |
fbcd35bd | 5062 | |
222d557c GM |
5063 | /* Maximum number of pixels the mouse may be moved between clicks |
5064 | to make a double-click. */ | |
5065 | ||
31ade731 | 5066 | EMACS_INT double_click_fuzz; |
222d557c | 5067 | |
fbcd35bd JB |
5068 | /* The number of clicks in this multiple-click. */ |
5069 | ||
5070 | int double_click_count; | |
5071 | ||
3d566707 KS |
5072 | /* Return position of a mouse click or wheel event */ |
5073 | ||
5074 | static Lisp_Object | |
5075 | make_lispy_position (f, x, y, time) | |
5076 | struct frame *f; | |
5077 | Lisp_Object *x, *y; | |
5078 | unsigned long time; | |
5079 | { | |
5080 | Lisp_Object window; | |
5081 | enum window_part part; | |
5082 | Lisp_Object posn = Qnil; | |
5083 | Lisp_Object extra_info = Qnil; | |
5084 | int wx, wy; | |
5085 | ||
5086 | /* Set `window' to the window under frame pixel coordinates (x,y) */ | |
5087 | if (f) | |
5088 | window = window_from_coordinates (f, XINT (*x), XINT (*y), | |
5089 | &part, &wx, &wy, 0); | |
5090 | else | |
5091 | window = Qnil; | |
5092 | ||
5093 | if (WINDOWP (window)) | |
5094 | { | |
5095 | /* It's a click in window window at frame coordinates (x,y) */ | |
5096 | struct window *w = XWINDOW (window); | |
eee5863b | 5097 | Lisp_Object string_info = Qnil; |
3d566707 | 5098 | int textpos = -1, rx = -1, ry = -1; |
45de137a | 5099 | int dx = -1, dy = -1; |
eee5863b KS |
5100 | int width = -1, height = -1; |
5101 | Lisp_Object object = Qnil; | |
3d566707 KS |
5102 | |
5103 | /* Set event coordinates to window-relative coordinates | |
5104 | for constructing the Lisp event below. */ | |
5105 | XSETINT (*x, wx); | |
5106 | XSETINT (*y, wy); | |
5107 | ||
6507c4c7 KS |
5108 | if (part == ON_TEXT) |
5109 | { | |
5110 | wx += WINDOW_LEFT_MARGIN_WIDTH (w); | |
5111 | } | |
5112 | else if (part == ON_MODE_LINE || part == ON_HEADER_LINE) | |
3d566707 KS |
5113 | { |
5114 | /* Mode line or header line. Look for a string under | |
5115 | the mouse that may have a `local-map' property. */ | |
5116 | Lisp_Object string; | |
5117 | int charpos; | |
5118 | ||
5119 | posn = part == ON_MODE_LINE ? Qmode_line : Qheader_line; | |
5120 | rx = wx, ry = wy; | |
eee5863b KS |
5121 | string = mode_line_string (w, part, &rx, &ry, &charpos, |
5122 | &object, &dx, &dy, &width, &height); | |
3d566707 | 5123 | if (STRINGP (string)) |
eee5863b | 5124 | string_info = Fcons (string, make_number (charpos)); |
3d566707 KS |
5125 | if (w == XWINDOW (selected_window)) |
5126 | textpos = PT; | |
5127 | else | |
5128 | textpos = XMARKER (w->pointm)->charpos; | |
5129 | } | |
5130 | else if (part == ON_VERTICAL_BORDER) | |
5131 | { | |
5132 | posn = Qvertical_line; | |
5133 | wx = -1; | |
45de137a | 5134 | dx = 0; |
eee5863b | 5135 | width = 1; |
3d566707 KS |
5136 | } |
5137 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) | |
5138 | { | |
5139 | Lisp_Object string; | |
5140 | int charpos; | |
2320865d | 5141 | |
3d566707 KS |
5142 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; |
5143 | rx = wx, ry = wy; | |
eee5863b KS |
5144 | string = marginal_area_string (w, part, &rx, &ry, &charpos, |
5145 | &object, &dx, &dy, &width, &height); | |
3d566707 | 5146 | if (STRINGP (string)) |
eee5863b | 5147 | string_info = Fcons (string, make_number (charpos)); |
a65fc2c3 KS |
5148 | if (part == ON_LEFT_MARGIN) |
5149 | wx = 0; | |
5150 | else | |
5151 | wx = window_box_right_offset (w, TEXT_AREA) - 1; | |
5152 | } | |
5153 | else if (part == ON_LEFT_FRINGE) | |
5154 | { | |
5155 | posn = Qleft_fringe; | |
5156 | rx = 0; | |
5157 | dx = wx; | |
5158 | wx = (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5159 | ? 0 | |
5160 | : window_box_width (w, LEFT_MARGIN_AREA)); | |
5161 | dx -= wx; | |
3d566707 | 5162 | } |
a65fc2c3 | 5163 | else if (part == ON_RIGHT_FRINGE) |
3d566707 | 5164 | { |
a65fc2c3 | 5165 | posn = Qright_fringe; |
3d566707 | 5166 | rx = 0; |
45de137a | 5167 | dx = wx; |
a65fc2c3 KS |
5168 | wx = (window_box_width (w, LEFT_MARGIN_AREA) |
5169 | + window_box_width (w, TEXT_AREA) | |
5170 | + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5171 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5172 | : 0)); | |
5173 | dx -= wx; | |
5174 | } | |
5175 | else | |
5176 | { | |
5177 | /* Note: We have no special posn for part == ON_SCROLL_BAR. */ | |
5178 | wx = max (WINDOW_LEFT_MARGIN_WIDTH (w), wx); | |
3d566707 KS |
5179 | } |
5180 | ||
5181 | if (textpos < 0) | |
5182 | { | |
eee5863b | 5183 | Lisp_Object string2, object2 = Qnil; |
3d566707 | 5184 | struct display_pos p; |
45de137a | 5185 | int dx2, dy2; |
eee5863b | 5186 | int width2, height2; |
eee5863b KS |
5187 | string2 = buffer_posn_from_coords (w, &wx, &wy, &p, |
5188 | &object2, &dx2, &dy2, | |
5189 | &width2, &height2); | |
3d566707 | 5190 | textpos = CHARPOS (p.pos); |
45de137a KS |
5191 | if (rx < 0) rx = wx; |
5192 | if (ry < 0) ry = wy; | |
5193 | if (dx < 0) dx = dx2; | |
5194 | if (dy < 0) dy = dy2; | |
eee5863b KS |
5195 | if (width < 0) width = width2; |
5196 | if (height < 0) height = height2; | |
3d566707 KS |
5197 | |
5198 | if (NILP (posn)) | |
5199 | { | |
5200 | posn = make_number (textpos); | |
eee5863b KS |
5201 | if (STRINGP (string2)) |
5202 | string_info = Fcons (string2, | |
5203 | make_number (CHARPOS (p.string_pos))); | |
3d566707 | 5204 | } |
eee5863b KS |
5205 | if (NILP (object)) |
5206 | object = object2; | |
3d566707 KS |
5207 | } |
5208 | ||
eee5863b KS |
5209 | #ifdef HAVE_WINDOW_SYSTEM |
5210 | if (IMAGEP (object)) | |
5211 | { | |
5212 | Lisp_Object image_map, hotspot; | |
5213 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5214 | !NILP (image_map)) | |
5215 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5216 | CONSP (hotspot)) | |
5217 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5218 | posn = XCAR (hotspot); | |
5219 | } | |
5220 | #endif | |
5221 | ||
5222 | /* Object info */ | |
3d566707 | 5223 | extra_info = Fcons (object, |
eee5863b KS |
5224 | Fcons (Fcons (make_number (dx), |
5225 | make_number (dy)), | |
5226 | Fcons (Fcons (make_number (width), | |
5227 | make_number (height)), | |
5228 | Qnil))); | |
5229 | ||
5230 | /* String info */ | |
5231 | extra_info = Fcons (string_info, | |
3d566707 KS |
5232 | Fcons (make_number (textpos), |
5233 | Fcons (Fcons (make_number (rx), | |
5234 | make_number (ry)), | |
eee5863b | 5235 | extra_info))); |
3d566707 KS |
5236 | } |
5237 | else if (f != 0) | |
5238 | { | |
5239 | XSETFRAME (window, f); | |
5240 | } | |
5241 | else | |
5242 | { | |
5243 | window = Qnil; | |
5244 | XSETFASTINT (*x, 0); | |
5245 | XSETFASTINT (*y, 0); | |
5246 | } | |
5247 | ||
5248 | return Fcons (window, | |
5249 | Fcons (posn, | |
5250 | Fcons (Fcons (*x, *y), | |
5251 | Fcons (make_number (time), | |
5252 | extra_info)))); | |
5253 | } | |
5254 | ||
284f4730 JB |
5255 | /* Given a struct input_event, build the lisp event which represents |
5256 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5257 | movement buffer, which should have a movement event in it. |
5258 | ||
5259 | Note that events must be passed to this function in the order they | |
5260 | are received; this function stores the location of button presses | |
5261 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5262 | |
5263 | static Lisp_Object | |
5264 | make_lispy_event (event) | |
5265 | struct input_event *event; | |
5266 | { | |
79a7046c RS |
5267 | int i; |
5268 | ||
0220c518 | 5269 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5270 | { |
284f4730 | 5271 | /* A simple keystroke. */ |
3b8f9651 | 5272 | case ASCII_KEYSTROKE_EVENT: |
86e5706b | 5273 | { |
9343ab07 | 5274 | Lisp_Object lispy_c; |
e9bf89a0 | 5275 | int c = event->code & 0377; |
5a1c6df8 JB |
5276 | /* Turn ASCII characters into control characters |
5277 | when proper. */ | |
5278 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
5279 | c = make_ctrl_char (c); |
5280 | ||
5281 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
5282 | just above, and the shift key was taken care of by the X code, | |
5283 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
5284 | c |= (event->modifiers |
5285 | & (meta_modifier | alt_modifier | |
5286 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
5287 | /* Distinguish Shift-SPC from SPC. */ |
5288 | if ((event->code & 0377) == 040 | |
5289 | && event->modifiers & shift_modifier) | |
5290 | c |= shift_modifier; | |
559f9d04 | 5291 | button_down_time = 0; |
bb9e9bed | 5292 | XSETFASTINT (lispy_c, c); |
9343ab07 | 5293 | return lispy_c; |
86e5706b | 5294 | } |
284f4730 | 5295 | |
3b8f9651 | 5296 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5297 | { |
5298 | Lisp_Object lispy_c; | |
24d80a06 | 5299 | int c = event->code; |
a50e723f | 5300 | |
24d80a06 SM |
5301 | /* Add in the other modifier bits. We took care of ctrl_modifier |
5302 | just above, and the shift key was taken care of by the X code, | |
5303 | and applied to control characters by make_ctrl_char. */ | |
5304 | c |= (event->modifiers | |
5305 | & (meta_modifier | alt_modifier | |
5306 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
5307 | /* What about the `shift' modifier ? */ | |
5308 | button_down_time = 0; | |
5309 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5310 | return lispy_c; |
5311 | } | |
5312 | ||
284f4730 JB |
5313 | /* A function key. The symbol may need to have modifier prefixes |
5314 | tacked onto it. */ | |
3b8f9651 | 5315 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5316 | button_down_time = 0; |
e9bf89a0 RS |
5317 | |
5318 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5319 | if (event->code == lispy_accent_codes[i]) | |
5320 | return modify_event_symbol (i, | |
5321 | event->modifiers, | |
80e4aa30 | 5322 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5323 | lispy_accent_keys, &accent_key_syms, |
5324 | (sizeof (lispy_accent_keys) | |
5325 | / sizeof (lispy_accent_keys[0]))); | |
5326 | ||
ed3230db | 5327 | #if 0 |
37cd9f30 KH |
5328 | #ifdef XK_kana_A |
5329 | if (event->code >= 0x400 && event->code < 0x500) | |
5330 | return modify_event_symbol (event->code - 0x400, | |
5331 | event->modifiers & ~shift_modifier, | |
5332 | Qfunction_key, Qnil, | |
5333 | lispy_kana_keys, &func_key_syms, | |
5334 | (sizeof (lispy_kana_keys) | |
5335 | / sizeof (lispy_kana_keys[0]))); | |
5336 | #endif /* XK_kana_A */ | |
ed3230db | 5337 | #endif /* 0 */ |
37cd9f30 | 5338 | |
111c4138 | 5339 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5340 | if (event->code < FUNCTION_KEY_OFFSET |
5341 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5342 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5343 | event->modifiers, | |
5344 | Qfunction_key, Qnil, | |
5345 | iso_lispy_function_keys, &func_key_syms, | |
5346 | (sizeof (iso_lispy_function_keys) | |
5347 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5348 | #endif |
656280a6 | 5349 | |
4c8bc894 SM |
5350 | /* Handle system-specific or unknown keysyms. */ |
5351 | if (event->code & (1 << 28) | |
5352 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5353 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5354 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5355 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5356 | { |
4c8bc894 SM |
5357 | /* We need to use an alist rather than a vector as the cache |
5358 | since we can't make a vector long enuf. */ | |
5359 | if (NILP (current_kboard->system_key_syms)) | |
5360 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5361 | return modify_event_symbol (event->code, | |
5362 | event->modifiers, | |
5363 | Qfunction_key, | |
5364 | current_kboard->Vsystem_key_alist, | |
5365 | 0, ¤t_kboard->system_key_syms, | |
5366 | (unsigned) -1); | |
656280a6 | 5367 | } |
656280a6 GM |
5368 | |
5369 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5370 | event->modifiers, | |
5371 | Qfunction_key, Qnil, | |
5372 | lispy_function_keys, &func_key_syms, | |
5373 | (sizeof (lispy_function_keys) | |
5374 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5375 | |
514354e9 | 5376 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5377 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5378 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5379 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5380 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5381 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5382 | #endif |
284f4730 | 5383 | { |
e9bf89a0 | 5384 | int button = event->code; |
559f9d04 | 5385 | int is_double; |
7b4aedb9 | 5386 | Lisp_Object position; |
dbc4e1c1 JB |
5387 | Lisp_Object *start_pos_ptr; |
5388 | Lisp_Object start_pos; | |
284f4730 | 5389 | |
8c907a56 GM |
5390 | position = Qnil; |
5391 | ||
7b4aedb9 | 5392 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5393 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5394 | { |
c5cf2109 | 5395 | struct frame *f = XFRAME (event->frame_or_window); |
3d566707 | 5396 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
9e20143a | 5397 | int row, column; |
3d566707 | 5398 | #endif |
9e20143a | 5399 | |
5da3133a RS |
5400 | /* Ignore mouse events that were made on frame that |
5401 | have been deleted. */ | |
5402 | if (! FRAME_LIVE_P (f)) | |
5403 | return Qnil; | |
5404 | ||
3d566707 | 5405 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
7ee32cda GM |
5406 | /* EVENT->x and EVENT->y are frame-relative pixel |
5407 | coordinates at this place. Under old redisplay, COLUMN | |
5408 | and ROW are set to frame relative glyph coordinates | |
5409 | which are then used to determine whether this click is | |
5410 | in a menu (non-toolkit version). */ | |
5411 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5412 | &column, &row, NULL, 1); | |
7b4aedb9 | 5413 | |
eef045bf RS |
5414 | /* In the non-toolkit version, clicks on the menu bar |
5415 | are ordinary button events in the event buffer. | |
5416 | Distinguish them, and invoke the menu. | |
5417 | ||
5418 | (In the toolkit version, the toolkit handles the menu bar | |
5419 | and Emacs doesn't know about it until after the user | |
5420 | makes a selection.) */ | |
2ee250ec RS |
5421 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5422 | && (event->modifiers & down_modifier)) | |
bb936752 | 5423 | { |
b7c49376 | 5424 | Lisp_Object items, item; |
0a0e8fe6 RS |
5425 | int hpos; |
5426 | int i; | |
5427 | ||
2ee250ec | 5428 | #if 0 |
0a0e8fe6 RS |
5429 | /* Activate the menu bar on the down event. If the |
5430 | up event comes in before the menu code can deal with it, | |
5431 | just ignore it. */ | |
5432 | if (! (event->modifiers & down_modifier)) | |
5433 | return Qnil; | |
2ee250ec | 5434 | #endif |
0aafc975 | 5435 | |
7ee32cda | 5436 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5437 | item = Qnil; |
5ec75a55 | 5438 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5439 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5440 | { |
5441 | Lisp_Object pos, string; | |
129004d3 GM |
5442 | string = AREF (items, i + 1); |
5443 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5444 | if (NILP (string)) |
5445 | break; | |
9e20143a | 5446 | if (column >= XINT (pos) |
d5db4077 | 5447 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5448 | { |
129004d3 | 5449 | item = AREF (items, i); |
b7c49376 RS |
5450 | break; |
5451 | } | |
5ec75a55 | 5452 | } |
9e20143a | 5453 | |
7ee32cda GM |
5454 | /* ELisp manual 2.4b says (x y) are window relative but |
5455 | code says they are frame-relative. */ | |
5ec75a55 RS |
5456 | position |
5457 | = Fcons (event->frame_or_window, | |
5458 | Fcons (Qmenu_bar, | |
5459 | Fcons (Fcons (event->x, event->y), | |
5460 | Fcons (make_number (event->timestamp), | |
5461 | Qnil)))); | |
5462 | ||
b7c49376 | 5463 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5464 | } |
488dd4c4 | 5465 | #endif /* not USE_X_TOOLKIT && not USE_GTK */ |
0aafc975 | 5466 | |
3d566707 KS |
5467 | position = make_lispy_position (f, &event->x, &event->y, |
5468 | event->timestamp); | |
284f4730 | 5469 | } |
7ee32cda | 5470 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5471 | else |
88cb0656 | 5472 | { |
7ee32cda | 5473 | /* It's a scrollbar click. */ |
3d566707 | 5474 | Lisp_Object window; |
9e20143a RS |
5475 | Lisp_Object portion_whole; |
5476 | Lisp_Object part; | |
5477 | ||
5478 | window = event->frame_or_window; | |
5479 | portion_whole = Fcons (event->x, event->y); | |
5480 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5481 | |
db08707d RS |
5482 | position |
5483 | = Fcons (window, | |
5484 | Fcons (Qvertical_scroll_bar, | |
5485 | Fcons (portion_whole, | |
5486 | Fcons (make_number (event->timestamp), | |
5487 | Fcons (part, Qnil))))); | |
88cb0656 | 5488 | } |
7ee32cda | 5489 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5490 | |
129004d3 | 5491 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5492 | { |
5493 | button_down_location = larger_vector (button_down_location, | |
5494 | button + 1, Qnil); | |
5495 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5496 | } | |
c60ee5e7 | 5497 | |
129004d3 | 5498 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5499 | start_pos = *start_pos_ptr; |
5500 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5501 | |
c5cf2109 GM |
5502 | { |
5503 | /* On window-system frames, use the value of | |
5504 | double-click-fuzz as is. On other frames, interpret it | |
5505 | as a multiple of 1/8 characters. */ | |
5506 | struct frame *f; | |
5507 | int fuzz; | |
5508 | ||
5509 | if (WINDOWP (event->frame_or_window)) | |
5510 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5511 | else if (FRAMEP (event->frame_or_window)) | |
5512 | f = XFRAME (event->frame_or_window); | |
5513 | else | |
5514 | abort (); | |
5515 | ||
5516 | if (FRAME_WINDOW_P (f)) | |
5517 | fuzz = double_click_fuzz; | |
5518 | else | |
5519 | fuzz = double_click_fuzz / 8; | |
5520 | ||
5521 | is_double = (button == last_mouse_button | |
5522 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5523 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5524 | && button_down_time != 0 | |
5525 | && (EQ (Vdouble_click_time, Qt) | |
5526 | || (INTEGERP (Vdouble_click_time) | |
5527 | && ((int)(event->timestamp - button_down_time) | |
5528 | < XINT (Vdouble_click_time))))); | |
5529 | } | |
c60ee5e7 | 5530 | |
559f9d04 RS |
5531 | last_mouse_button = button; |
5532 | last_mouse_x = XINT (event->x); | |
5533 | last_mouse_y = XINT (event->y); | |
5534 | ||
7b4aedb9 JB |
5535 | /* If this is a button press, squirrel away the location, so |
5536 | we can decide later whether it was a click or a drag. */ | |
5537 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5538 | { |
5539 | if (is_double) | |
5540 | { | |
5541 | double_click_count++; | |
5542 | event->modifiers |= ((double_click_count > 2) | |
5543 | ? triple_modifier | |
5544 | : double_modifier); | |
5545 | } | |
5546 | else | |
5547 | double_click_count = 1; | |
5548 | button_down_time = event->timestamp; | |
5549 | *start_pos_ptr = Fcopy_alist (position); | |
5550 | } | |
7b4aedb9 | 5551 | |
88cb0656 | 5552 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5553 | see if this was a click or a drag. */ |
88cb0656 JB |
5554 | else if (event->modifiers & up_modifier) |
5555 | { | |
129004d3 GM |
5556 | /* If we did not see a down before this up, ignore the up. |
5557 | Probably this happened because the down event chose a | |
5558 | menu item. It would be an annoyance to treat the | |
5559 | release of the button that chose the menu item as a | |
5560 | separate event. */ | |
48e416d4 | 5561 | |
8c18cbfb | 5562 | if (!CONSP (start_pos)) |
48e416d4 RS |
5563 | return Qnil; |
5564 | ||
88cb0656 | 5565 | event->modifiers &= ~up_modifier; |
48e416d4 | 5566 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 5567 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
5568 | event->modifiers |= click_modifier; |
5569 | else | |
48e416d4 | 5570 | #endif |
dbc4e1c1 | 5571 | { |
9b8eb840 | 5572 | Lisp_Object down; |
d31053f9 | 5573 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5574 | |
d31053f9 RS |
5575 | /* The third element of every position |
5576 | should be the (x,y) pair. */ | |
5577 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
7a6a97d7 SM |
5578 | if (CONSP (down) |
5579 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5580 | { |
4156359e SM |
5581 | xdiff = XINT (event->x) - XINT (XCAR (down)); |
5582 | ydiff = XINT (event->y) - XINT (XCDR (down)); | |
d31053f9 RS |
5583 | } |
5584 | ||
5585 | if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
4156359e SM |
5586 | && ydiff < double_click_fuzz && ydiff > - double_click_fuzz |
5587 | /* Maybe the mouse has moved a lot, caused scrolling, and | |
5588 | eventually ended up at the same screen position (but | |
5589 | not buffer position) in which case it is a drag, not | |
5590 | a click. */ | |
5591 | /* FIXME: OTOH if the buffer position has changed | |
5592 | because of a timer or process filter rather than | |
5593 | because of mouse movement, it should be considered as | |
5594 | a click. But mouse-drag-region completely ignores | |
5595 | this case and it hasn't caused any real problem, so | |
5596 | it's probably OK to ignore it as well. */ | |
5597 | && EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position)))) | |
d31053f9 | 5598 | /* Mouse hasn't moved (much). */ |
129004d3 | 5599 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5600 | else |
5601 | { | |
d31053f9 RS |
5602 | button_down_time = 0; |
5603 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5604 | } |
c60ee5e7 | 5605 | |
bc536d84 RS |
5606 | /* Don't check is_double; treat this as multiple |
5607 | if the down-event was multiple. */ | |
5608 | if (double_click_count > 1) | |
5609 | event->modifiers |= ((double_click_count > 2) | |
5610 | ? triple_modifier | |
5611 | : double_modifier); | |
dbc4e1c1 | 5612 | } |
88cb0656 JB |
5613 | } |
5614 | else | |
5615 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5616 | the up_modifier set. */ |
88cb0656 JB |
5617 | abort (); |
5618 | ||
88cb0656 | 5619 | { |
7b4aedb9 | 5620 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5621 | Lisp_Object head; |
5622 | ||
5623 | head = modify_event_symbol (button, | |
5624 | event->modifiers, | |
8e1e4240 GM |
5625 | Qmouse_click, Vlispy_mouse_stem, |
5626 | NULL, | |
5627 | &mouse_syms, | |
5628 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5629 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5630 | return Fcons (head, |
5631 | Fcons (start_pos, | |
5632 | Fcons (position, | |
5633 | Qnil))); | |
fbcd35bd JB |
5634 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5635 | return Fcons (head, | |
5636 | Fcons (position, | |
5637 | Fcons (make_number (double_click_count), | |
5638 | Qnil))); | |
88cb0656 JB |
5639 | else |
5640 | return Fcons (head, | |
7b4aedb9 | 5641 | Fcons (position, |
88cb0656 JB |
5642 | Qnil)); |
5643 | } | |
284f4730 | 5644 | } |
db08707d | 5645 | |
8006e4bb JR |
5646 | case WHEEL_EVENT: |
5647 | { | |
5648 | Lisp_Object position; | |
8006e4bb | 5649 | Lisp_Object head; |
2320865d | 5650 | |
87d386ff | 5651 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5652 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5653 | |
5654 | /* Ignore wheel events that were made on frame that have been | |
5655 | deleted. */ | |
5656 | if (! FRAME_LIVE_P (f)) | |
5657 | return Qnil; | |
5658 | ||
3d566707 KS |
5659 | position = make_lispy_position (f, &event->x, &event->y, |
5660 | event->timestamp); | |
87d386ff JR |
5661 | |
5662 | /* Set double or triple modifiers to indicate the wheel speed. */ | |
5663 | { | |
5664 | /* On window-system frames, use the value of | |
5665 | double-click-fuzz as is. On other frames, interpret it | |
5666 | as a multiple of 1/8 characters. */ | |
5667 | struct frame *f; | |
5668 | int fuzz; | |
5669 | int is_double; | |
5670 | ||
5671 | if (WINDOWP (event->frame_or_window)) | |
5672 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5673 | else if (FRAMEP (event->frame_or_window)) | |
5674 | f = XFRAME (event->frame_or_window); | |
5675 | else | |
5676 | abort (); | |
5677 | ||
5678 | if (FRAME_WINDOW_P (f)) | |
5679 | fuzz = double_click_fuzz; | |
5680 | else | |
5681 | fuzz = double_click_fuzz / 8; | |
5682 | ||
5683 | is_double = (last_mouse_button < 0 | |
5684 | && (abs (XINT (event->x) - last_mouse_x) <= fuzz) | |
5685 | && (abs (XINT (event->y) - last_mouse_y) <= fuzz) | |
5686 | && button_down_time != 0 | |
5687 | && (EQ (Vdouble_click_time, Qt) | |
5688 | || (INTEGERP (Vdouble_click_time) | |
5689 | && ((int)(event->timestamp - button_down_time) | |
5690 | < XINT (Vdouble_click_time))))); | |
5691 | if (is_double) | |
5692 | { | |
5693 | double_click_count++; | |
5694 | event->modifiers |= ((double_click_count > 2) | |
5695 | ? triple_modifier | |
5696 | : double_modifier); | |
5697 | } | |
5698 | else | |
5699 | { | |
5700 | double_click_count = 1; | |
5701 | event->modifiers |= click_modifier; | |
5702 | } | |
5703 | ||
5704 | button_down_time = event->timestamp; | |
5705 | /* Use a negative value to distinguish wheel from mouse button. */ | |
5706 | last_mouse_button = -1; | |
5707 | last_mouse_x = XINT (event->x); | |
5708 | last_mouse_y = XINT (event->y); | |
5709 | } | |
5710 | ||
5711 | { | |
5712 | int symbol_num; | |
5713 | ||
5714 | if (event->modifiers & up_modifier) | |
5715 | { | |
5716 | /* Emit a wheel-up event. */ | |
5717 | event->modifiers &= ~up_modifier; | |
5718 | symbol_num = 0; | |
5719 | } | |
5720 | else if (event->modifiers & down_modifier) | |
5721 | { | |
5722 | /* Emit a wheel-down event. */ | |
5723 | event->modifiers &= ~down_modifier; | |
5724 | symbol_num = 1; | |
5725 | } | |
5726 | else | |
5727 | /* Every wheel event should either have the down_modifier or | |
5728 | the up_modifier set. */ | |
5729 | abort (); | |
5730 | ||
5731 | /* Get the symbol we should use for the wheel event. */ | |
5732 | head = modify_event_symbol (symbol_num, | |
5733 | event->modifiers, | |
5734 | Qmouse_click, | |
5735 | Qnil, | |
5736 | lispy_wheel_names, | |
5737 | &wheel_syms, | |
5738 | ASIZE (wheel_syms)); | |
5739 | } | |
5740 | ||
5741 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5742 | return Fcons (head, | |
5743 | Fcons (position, | |
5744 | Fcons (make_number (double_click_count), | |
5745 | Qnil))); | |
5746 | else | |
5747 | return Fcons (head, | |
5748 | Fcons (position, | |
5749 | Qnil)); | |
8006e4bb JR |
5750 | } |
5751 | ||
5752 | ||
05be3964 | 5753 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5754 | |
5755 | /* We don't have down and up events if using toolkit scroll bars, | |
5756 | so make this always a click event. Store in the `part' of | |
5757 | the Lisp event a symbol which maps to the following actions: | |
5758 | ||
5759 | `above_handle' page up | |
5760 | `below_handle' page down | |
5761 | `up' line up | |
5762 | `down' line down | |
5763 | `top' top of buffer | |
5764 | `bottom' bottom of buffer | |
5765 | `handle' thumb has been dragged. | |
5766 | `end-scroll' end of interaction with scroll bar | |
5767 | ||
5768 | The incoming input_event contains in its `part' member an | |
5769 | index of type `enum scroll_bar_part' which we can use as an | |
5770 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 5771 | |
3b8f9651 | 5772 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5773 | { |
5774 | Lisp_Object position, head, window, portion_whole, part; | |
5775 | ||
5776 | window = event->frame_or_window; | |
5777 | portion_whole = Fcons (event->x, event->y); | |
5778 | part = *scroll_bar_parts[(int) event->part]; | |
5779 | ||
5780 | position | |
5781 | = Fcons (window, | |
5782 | Fcons (Qvertical_scroll_bar, | |
5783 | Fcons (portion_whole, | |
5784 | Fcons (make_number (event->timestamp), | |
5785 | Fcons (part, Qnil))))); | |
5786 | ||
5787 | /* Always treat scroll bar events as clicks. */ | |
5788 | event->modifiers |= click_modifier; | |
05be3964 | 5789 | event->modifiers &= ~up_modifier; |
7ee32cda | 5790 | |
257f40f2 JD |
5791 | if (event->code >= ASIZE (mouse_syms)) |
5792 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
5793 | ||
7ee32cda GM |
5794 | /* Get the symbol we should use for the mouse click. */ |
5795 | head = modify_event_symbol (event->code, | |
5796 | event->modifiers, | |
14e40288 | 5797 | Qmouse_click, |
8e1e4240 GM |
5798 | Vlispy_mouse_stem, |
5799 | NULL, &mouse_syms, | |
5800 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5801 | return Fcons (head, Fcons (position, Qnil)); |
5802 | } | |
c60ee5e7 | 5803 | |
7ee32cda GM |
5804 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
5805 | ||
db08707d | 5806 | #ifdef WINDOWSNT |
3b8f9651 | 5807 | case W32_SCROLL_BAR_CLICK_EVENT: |
db08707d RS |
5808 | { |
5809 | int button = event->code; | |
5810 | int is_double; | |
5811 | Lisp_Object position; | |
5812 | Lisp_Object *start_pos_ptr; | |
5813 | Lisp_Object start_pos; | |
5814 | ||
db08707d RS |
5815 | { |
5816 | Lisp_Object window; | |
5817 | Lisp_Object portion_whole; | |
5818 | Lisp_Object part; | |
5819 | ||
5820 | window = event->frame_or_window; | |
5821 | portion_whole = Fcons (event->x, event->y); | |
5822 | part = *scroll_bar_parts[(int) event->part]; | |
5823 | ||
e8886a1d RS |
5824 | position |
5825 | = Fcons (window, | |
5826 | Fcons (Qvertical_scroll_bar, | |
5827 | Fcons (portion_whole, | |
5828 | Fcons (make_number (event->timestamp), | |
5829 | Fcons (part, Qnil))))); | |
db08707d RS |
5830 | } |
5831 | ||
fbd6baed | 5832 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
5833 | event->modifiers |= click_modifier; |
5834 | ||
5835 | { | |
5836 | /* Get the symbol we should use for the mouse click. */ | |
5837 | Lisp_Object head; | |
5838 | ||
5839 | head = modify_event_symbol (button, | |
5840 | event->modifiers, | |
c60ee5e7 | 5841 | Qmouse_click, |
8e1e4240 GM |
5842 | Vlispy_mouse_stem, |
5843 | NULL, &mouse_syms, | |
5844 | XVECTOR (mouse_syms)->size); | |
db08707d RS |
5845 | return Fcons (head, |
5846 | Fcons (position, | |
5847 | Qnil)); | |
5848 | } | |
5849 | } | |
1e7c162f | 5850 | #endif /* WINDOWSNT */ |
a24dc617 | 5851 | |
3b8f9651 | 5852 | case DRAG_N_DROP_EVENT: |
a24dc617 | 5853 | { |
a24dc617 | 5854 | FRAME_PTR f; |
3d566707 | 5855 | Lisp_Object head, position; |
a24dc617 | 5856 | Lisp_Object files; |
a24dc617 RS |
5857 | |
5858 | /* The frame_or_window field should be a cons of the frame in | |
5859 | which the event occurred and a list of the filenames | |
5860 | dropped. */ | |
5861 | if (! CONSP (event->frame_or_window)) | |
5862 | abort (); | |
5863 | ||
7539e11f KR |
5864 | f = XFRAME (XCAR (event->frame_or_window)); |
5865 | files = XCDR (event->frame_or_window); | |
a24dc617 RS |
5866 | |
5867 | /* Ignore mouse events that were made on frames that | |
5868 | have been deleted. */ | |
5869 | if (! FRAME_LIVE_P (f)) | |
5870 | return Qnil; | |
afabdbe5 | 5871 | |
3d566707 KS |
5872 | position = make_lispy_position (f, &event->x, &event->y, |
5873 | event->timestamp); | |
5874 | ||
5875 | head = modify_event_symbol (0, event->modifiers, | |
5876 | Qdrag_n_drop, Qnil, | |
5877 | lispy_drag_n_drop_names, | |
5878 | &drag_n_drop_syms, 1); | |
5879 | return Fcons (head, | |
5880 | Fcons (position, | |
5881 | Fcons (files, | |
5882 | Qnil))); | |
a24dc617 | 5883 | } |
514354e9 | 5884 | #endif /* HAVE_MOUSE */ |
284f4730 | 5885 | |
488dd4c4 JD |
5886 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \ |
5887 | || defined (USE_GTK) | |
da8f7368 GM |
5888 | case MENU_BAR_EVENT: |
5889 | if (EQ (event->arg, event->frame_or_window)) | |
5890 | /* This is the prefix key. We translate this to | |
5891 | `(menu_bar)' because the code in keyboard.c for menu | |
5892 | events, which we use, relies on this. */ | |
5893 | return Fcons (Qmenu_bar, Qnil); | |
5894 | return event->arg; | |
2470a66f KH |
5895 | #endif |
5896 | ||
a4e19f6e SM |
5897 | case SELECT_WINDOW_EVENT: |
5898 | /* Make an event (select-window (WINDOW)). */ | |
5899 | return Fcons (Qselect_window, | |
5900 | Fcons (Fcons (event->frame_or_window, Qnil), | |
5901 | Qnil)); | |
5902 | ||
9ea173e8 | 5903 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5904 | if (EQ (event->arg, event->frame_or_window)) |
5905 | /* This is the prefix key. We translate this to | |
27fd22dc | 5906 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5907 | events, which we use, relies on this. */ |
5908 | return Fcons (Qtool_bar, Qnil); | |
5909 | else if (SYMBOLP (event->arg)) | |
5910 | return apply_modifiers (event->modifiers, event->arg); | |
5911 | return event->arg; | |
5912 | ||
5913 | case USER_SIGNAL_EVENT: | |
5bf68f6e AS |
5914 | /* A user signal. */ |
5915 | return *lispy_user_signals[event->code]; | |
c60ee5e7 | 5916 | |
3b8f9651 | 5917 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 5918 | return Qsave_session; |
c60ee5e7 | 5919 | |
284f4730 JB |
5920 | /* The 'kind' field of the event is something we don't recognize. */ |
5921 | default: | |
48e416d4 | 5922 | abort (); |
284f4730 JB |
5923 | } |
5924 | } | |
5925 | ||
514354e9 | 5926 | #ifdef HAVE_MOUSE |
6cbff1cb | 5927 | |
284f4730 | 5928 | static Lisp_Object |
7b4aedb9 | 5929 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 5930 | FRAME_PTR frame; |
7b4aedb9 | 5931 | Lisp_Object bar_window; |
3c370943 | 5932 | enum scroll_bar_part part; |
284f4730 | 5933 | Lisp_Object x, y; |
e5d77022 | 5934 | unsigned long time; |
284f4730 | 5935 | { |
3c370943 | 5936 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5937 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5938 | { |
9b8eb840 | 5939 | Lisp_Object part_sym; |
4bb994d1 | 5940 | |
9b8eb840 | 5941 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5942 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 5943 | (Fcons (Fcons (bar_window, |
3c370943 | 5944 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
5945 | Fcons (Fcons (x, y), |
5946 | Fcons (make_number (time), | |
cb5df6ae | 5947 | Fcons (part_sym, |
4bb994d1 JB |
5948 | Qnil))))), |
5949 | Qnil))); | |
5950 | } | |
5951 | ||
5952 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
5953 | else |
5954 | { | |
3d566707 | 5955 | Lisp_Object position; |
4bb994d1 | 5956 | |
3d566707 | 5957 | position = make_lispy_position (frame, &x, &y, time); |
284f4730 | 5958 | |
4bb994d1 | 5959 | return Fcons (Qmouse_movement, |
3d566707 | 5960 | Fcons (position, |
4bb994d1 JB |
5961 | Qnil)); |
5962 | } | |
284f4730 JB |
5963 | } |
5964 | ||
514354e9 | 5965 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 5966 | |
cd21b839 JB |
5967 | /* Construct a switch frame event. */ |
5968 | static Lisp_Object | |
5969 | make_lispy_switch_frame (frame) | |
5970 | Lisp_Object frame; | |
5971 | { | |
5972 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5973 | } | |
0a7f1fc0 JB |
5974 | \f |
5975 | /* Manipulating modifiers. */ | |
284f4730 | 5976 | |
0a7f1fc0 | 5977 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5978 | |
0a7f1fc0 JB |
5979 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5980 | SYMBOL's name of the end of the modifiers; the string from this | |
5981 | position is the unmodified symbol name. | |
284f4730 | 5982 | |
0a7f1fc0 | 5983 | This doesn't use any caches. */ |
6da3dd3a | 5984 | |
0a7f1fc0 JB |
5985 | static int |
5986 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 5987 | Lisp_Object symbol; |
0a7f1fc0 | 5988 | int *modifier_end; |
284f4730 | 5989 | { |
1b049b51 | 5990 | Lisp_Object name; |
284f4730 JB |
5991 | int i; |
5992 | int modifiers; | |
284f4730 | 5993 | |
b7826503 | 5994 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5995 | |
284f4730 | 5996 | modifiers = 0; |
1b049b51 | 5997 | name = SYMBOL_NAME (symbol); |
284f4730 | 5998 | |
1b049b51 | 5999 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
6000 | { |
6001 | int this_mod_end = 0; | |
6002 | int this_mod = 0; | |
284f4730 | 6003 | |
6da3dd3a RS |
6004 | /* See if the name continues with a modifier word. |
6005 | Check that the word appears, but don't check what follows it. | |
6006 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 6007 | |
1b049b51 | 6008 | switch (SREF (name, i)) |
6da3dd3a RS |
6009 | { |
6010 | #define SINGLE_LETTER_MOD(BIT) \ | |
6011 | (this_mod_end = i + 1, this_mod = BIT) | |
6012 | ||
6da3dd3a RS |
6013 | case 'A': |
6014 | SINGLE_LETTER_MOD (alt_modifier); | |
6015 | break; | |
284f4730 | 6016 | |
6da3dd3a RS |
6017 | case 'C': |
6018 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6019 | break; | |
284f4730 | 6020 | |
6da3dd3a RS |
6021 | case 'H': |
6022 | SINGLE_LETTER_MOD (hyper_modifier); | |
6023 | break; | |
6024 | ||
6da3dd3a RS |
6025 | case 'M': |
6026 | SINGLE_LETTER_MOD (meta_modifier); | |
6027 | break; | |
6028 | ||
6da3dd3a RS |
6029 | case 'S': |
6030 | SINGLE_LETTER_MOD (shift_modifier); | |
6031 | break; | |
6032 | ||
6033 | case 's': | |
6da3dd3a RS |
6034 | SINGLE_LETTER_MOD (super_modifier); |
6035 | break; | |
6036 | ||
0a7f1fc0 | 6037 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
6038 | |
6039 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
6040 | if (i + LEN + 1 <= SBYTES (name) \ | |
6041 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
6042 | { \ | |
6043 | this_mod_end = i + LEN; \ | |
6044 | this_mod = BIT; \ | |
6045 | } | |
6046 | ||
6047 | case 'd': | |
6048 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6049 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6050 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6051 | break; | |
6052 | ||
6053 | case 't': | |
6054 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6055 | break; | |
6056 | #undef MULTI_LETTER_MOD | |
6057 | ||
6da3dd3a RS |
6058 | } |
6059 | ||
6060 | /* If we found no modifier, stop looking for them. */ | |
6061 | if (this_mod_end == 0) | |
6062 | break; | |
6063 | ||
6064 | /* Check there is a dash after the modifier, so that it | |
6065 | really is a modifier. */ | |
1b049b51 KR |
6066 | if (this_mod_end >= SBYTES (name) |
6067 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
6068 | break; |
6069 | ||
6070 | /* This modifier is real; look for another. */ | |
6071 | modifiers |= this_mod; | |
6072 | i = this_mod_end + 1; | |
6073 | } | |
284f4730 | 6074 | |
0a7f1fc0 | 6075 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6076 | if (! (modifiers & (down_modifier | drag_modifier |
6077 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6078 | && i + 7 == SBYTES (name) |
6079 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6080 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6081 | modifiers |= click_modifier; |
6082 | ||
6083 | if (modifier_end) | |
6084 | *modifier_end = i; | |
6085 | ||
6086 | return modifiers; | |
6087 | } | |
6088 | ||
0a7f1fc0 JB |
6089 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6090 | prepended to the string BASE[0..BASE_LEN-1]. | |
6091 | This doesn't use any caches. */ | |
6092 | static Lisp_Object | |
301738ed | 6093 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
6094 | int modifiers; |
6095 | char *base; | |
301738ed | 6096 | int base_len, base_len_byte; |
0a7f1fc0 JB |
6097 | { |
6098 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6099 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6100 | reference to it. */ | |
301738ed RS |
6101 | char *new_mods |
6102 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6103 | int mod_len; |
284f4730 | 6104 | |
284f4730 | 6105 | { |
0a7f1fc0 JB |
6106 | char *p = new_mods; |
6107 | ||
6108 | /* Only the event queue may use the `up' modifier; it should always | |
6109 | be turned into a click or drag event before presented to lisp code. */ | |
6110 | if (modifiers & up_modifier) | |
6111 | abort (); | |
6112 | ||
6113 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6114 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6115 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6116 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6117 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6118 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6119 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6120 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6121 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6122 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6123 | /* The click modifier is denoted by the absence of other modifiers. */ |
6124 | ||
6125 | *p = '\0'; | |
6126 | ||
6127 | mod_len = p - new_mods; | |
6128 | } | |
284f4730 | 6129 | |
0a7f1fc0 | 6130 | { |
9b8eb840 | 6131 | Lisp_Object new_name; |
df0f2ba1 | 6132 | |
301738ed RS |
6133 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6134 | mod_len + base_len_byte); | |
d5db4077 KR |
6135 | bcopy (new_mods, SDATA (new_name), mod_len); |
6136 | bcopy (base, SDATA (new_name) + mod_len, base_len_byte); | |
284f4730 JB |
6137 | |
6138 | return Fintern (new_name, Qnil); | |
6139 | } | |
6140 | } | |
6141 | ||
6142 | ||
0a7f1fc0 JB |
6143 | static char *modifier_names[] = |
6144 | { | |
fbcd35bd | 6145 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6146 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6147 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6148 | }; |
80645119 | 6149 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6150 | |
6151 | static Lisp_Object modifier_symbols; | |
6152 | ||
6153 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6154 | static Lisp_Object | |
6155 | lispy_modifier_list (modifiers) | |
6156 | int modifiers; | |
6157 | { | |
6158 | Lisp_Object modifier_list; | |
6159 | int i; | |
6160 | ||
6161 | modifier_list = Qnil; | |
80645119 | 6162 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6163 | if (modifiers & (1<<i)) |
80645119 JB |
6164 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6165 | modifier_list); | |
0a7f1fc0 JB |
6166 | |
6167 | return modifier_list; | |
6168 | } | |
6169 | ||
6170 | ||
6171 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6172 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6173 | MASK is the set of modifiers present in SYMBOL's name. | |
6174 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6175 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6176 | Qevent_symbol_elements property. */ | |
3d31316f | 6177 | |
1161d367 | 6178 | Lisp_Object |
0a7f1fc0 JB |
6179 | parse_modifiers (symbol) |
6180 | Lisp_Object symbol; | |
6181 | { | |
9b8eb840 | 6182 | Lisp_Object elements; |
0a7f1fc0 | 6183 | |
9b8eb840 | 6184 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6185 | if (CONSP (elements)) |
6186 | return elements; | |
6187 | else | |
6188 | { | |
6189 | int end; | |
ec0faad2 | 6190 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6191 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6192 | Lisp_Object mask; |
6193 | ||
d5db4077 KR |
6194 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6195 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6196 | Qnil); |
6197 | ||
e22216b8 | 6198 | if (modifiers & ~INTMASK) |
734fef94 | 6199 | abort (); |
bb9e9bed | 6200 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6201 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6202 | ||
6203 | /* Cache the parsing results on SYMBOL. */ | |
6204 | Fput (symbol, Qevent_symbol_element_mask, | |
6205 | elements); | |
6206 | Fput (symbol, Qevent_symbol_elements, | |
6207 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6208 | ||
6209 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6210 | it would be nice to put that in unmodified's cache. | |
6211 | But we can't, since we're not sure that parse_modifiers is | |
6212 | canonical. */ | |
6213 | ||
6214 | return elements; | |
6215 | } | |
6216 | } | |
6217 | ||
6218 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
6219 | BASE must be unmodified. | |
6220 | ||
6221 | This is like apply_modifiers_uncached, but uses BASE's | |
6222 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6223 | Qevent_symbol_elements properties, since it has that info anyway. |
6224 | ||
6225 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6226 | the modified symbol. */ | |
0a7f1fc0 JB |
6227 | static Lisp_Object |
6228 | apply_modifiers (modifiers, base) | |
6229 | int modifiers; | |
6230 | Lisp_Object base; | |
6231 | { | |
7b4aedb9 | 6232 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6233 | |
80645119 | 6234 | /* Mask out upper bits. We don't know where this value's been. */ |
e22216b8 | 6235 | modifiers &= INTMASK; |
80645119 | 6236 | |
0a7f1fc0 | 6237 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6238 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6239 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6240 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6241 | |
6242 | if (CONSP (entry)) | |
7539e11f | 6243 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6244 | else |
6245 | { | |
df0f2ba1 | 6246 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6247 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6248 | SDATA (SYMBOL_NAME (base)), |
6249 | SCHARS (SYMBOL_NAME (base)), | |
6250 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6251 | |
6252 | /* Add the new symbol to the base's cache. */ | |
6253 | entry = Fcons (index, new_symbol); | |
6254 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6255 | ||
35fb885d SM |
6256 | /* We have the parsing info now for free, so we could add it to |
6257 | the caches: | |
6258 | XSETFASTINT (index, modifiers); | |
6259 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6260 | Fcons (base, Fcons (index, Qnil))); | |
6261 | Fput (new_symbol, Qevent_symbol_elements, | |
6262 | Fcons (base, lispy_modifier_list (modifiers))); | |
6263 | Sadly, this is only correct if `base' is indeed a base event, | |
6264 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6265 | } |
0a7f1fc0 | 6266 | |
df0f2ba1 | 6267 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6268 | |
6269 | You'd think we could just set this once and for all when we | |
6270 | intern the symbol above, but reorder_modifiers may call us when | |
6271 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6272 | because it has a Qmodifier_cache property it must have its |
6273 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6274 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6275 | { | |
9b8eb840 | 6276 | Lisp_Object kind; |
7b4aedb9 | 6277 | |
9b8eb840 | 6278 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6279 | if (! NILP (kind)) |
6280 | Fput (new_symbol, Qevent_kind, kind); | |
6281 | } | |
6282 | ||
6283 | return new_symbol; | |
0a7f1fc0 JB |
6284 | } |
6285 | ||
6286 | ||
6287 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6288 | return a symbol with the modifiers placed in the canonical order. | |
6289 | Canonical order is alphabetical, except for down and drag, which | |
6290 | always come last. The 'click' modifier is never written out. | |
6291 | ||
6292 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6293 | and M-C-foo end up being equivalent in the keymap. */ | |
6294 | ||
6295 | Lisp_Object | |
6296 | reorder_modifiers (symbol) | |
6297 | Lisp_Object symbol; | |
6298 | { | |
6299 | /* It's hopefully okay to write the code this way, since everything | |
6300 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6301 | Lisp_Object parsed; |
0a7f1fc0 | 6302 | |
9b8eb840 | 6303 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6304 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6305 | XCAR (parsed)); | |
0a7f1fc0 JB |
6306 | } |
6307 | ||
6308 | ||
284f4730 JB |
6309 | /* For handling events, we often want to produce a symbol whose name |
6310 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6311 | to some base, like the name of a function key or mouse button. | |
6312 | modify_event_symbol produces symbols of this sort. | |
6313 | ||
6314 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6315 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6316 | in the table. | |
6317 | ||
8e1e4240 GM |
6318 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6319 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6320 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6321 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6322 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6323 | |
284f4730 JB |
6324 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6325 | persist between calls to modify_event_symbol that it can use to | |
6326 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6327 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6328 | |
6329 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6330 | |
284f4730 JB |
6331 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6332 | whose prefixes should be applied to the symbol name. | |
6333 | ||
6334 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6335 | the returned symbol. |
88cb0656 JB |
6336 | |
6337 | The symbols we create are supposed to have an | |
eb8c3be9 | 6338 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6339 | in the symbol's name. */ |
6340 | ||
284f4730 | 6341 | static Lisp_Object |
8e1e4240 | 6342 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist_or_stem, |
80e4aa30 | 6343 | name_table, symbol_table, table_size) |
284f4730 JB |
6344 | int symbol_num; |
6345 | unsigned modifiers; | |
6346 | Lisp_Object symbol_kind; | |
8e1e4240 | 6347 | Lisp_Object name_alist_or_stem; |
284f4730 JB |
6348 | char **name_table; |
6349 | Lisp_Object *symbol_table; | |
2c834fb3 | 6350 | unsigned int table_size; |
284f4730 | 6351 | { |
80e4aa30 RS |
6352 | Lisp_Object value; |
6353 | Lisp_Object symbol_int; | |
6354 | ||
2c834fb3 KH |
6355 | /* Get rid of the "vendor-specific" bit here. */ |
6356 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6357 | |
6358 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6359 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6360 | return Qnil; |
284f4730 | 6361 | |
80e4aa30 RS |
6362 | if (CONSP (*symbol_table)) |
6363 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6364 | ||
0a7f1fc0 | 6365 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6366 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6367 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6368 | we've never used that symbol before. */ | |
80e4aa30 | 6369 | else |
88cb0656 | 6370 | { |
80e4aa30 RS |
6371 | if (! VECTORP (*symbol_table) |
6372 | || XVECTOR (*symbol_table)->size != table_size) | |
6373 | { | |
6374 | Lisp_Object size; | |
0a7f1fc0 | 6375 | |
bb9e9bed | 6376 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6377 | *symbol_table = Fmake_vector (size, Qnil); |
6378 | } | |
284f4730 | 6379 | |
80e4aa30 RS |
6380 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6381 | } | |
284f4730 | 6382 | |
0a7f1fc0 | 6383 | /* Have we already used this symbol before? */ |
80e4aa30 | 6384 | if (NILP (value)) |
284f4730 | 6385 | { |
0a7f1fc0 | 6386 | /* No; let's create it. */ |
8e1e4240 GM |
6387 | if (CONSP (name_alist_or_stem)) |
6388 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6389 | else if (STRINGP (name_alist_or_stem)) | |
6390 | { | |
d5db4077 | 6391 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6392 | char *buf = (char *) alloca (len + 50); |
987a3489 KL |
6393 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6394 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6395 | value = intern (buf); |
6396 | } | |
2ff6714d | 6397 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6398 | value = intern (name_table[symbol_num]); |
b64b4075 | 6399 | |
e98a93eb | 6400 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6401 | if (NILP (value)) |
6402 | { | |
6403 | char *name = x_get_keysym_name (symbol_num); | |
6404 | if (name) | |
6405 | value = intern (name); | |
6406 | } | |
6407 | #endif | |
6408 | ||
b64b4075 | 6409 | if (NILP (value)) |
d1f50460 RS |
6410 | { |
6411 | char buf[20]; | |
6412 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 6413 | value = intern (buf); |
d1f50460 | 6414 | } |
0a7f1fc0 | 6415 | |
80e4aa30 | 6416 | if (CONSP (*symbol_table)) |
4205cb08 | 6417 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6418 | else |
6419 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6420 | ||
df0f2ba1 | 6421 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6422 | builds the Qevent_symbol_elements property, which the user |
6423 | cares about. */ | |
80e4aa30 RS |
6424 | apply_modifiers (modifiers & click_modifier, value); |
6425 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6426 | } |
88cb0656 | 6427 | |
0a7f1fc0 | 6428 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6429 | return apply_modifiers (modifiers, value); |
284f4730 | 6430 | } |
6da3dd3a RS |
6431 | \f |
6432 | /* Convert a list that represents an event type, | |
6433 | such as (ctrl meta backspace), into the usual representation of that | |
6434 | event type as a number or a symbol. */ | |
6435 | ||
a1706c30 | 6436 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6437 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6438 | EVENT-DESC should contain one base event type (a character or symbol) | |
6439 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6440 | drag, down, double or triple). The base must be last. | |
6441 | The return value is an event type (a character or symbol) which | |
6442 | has the same base event type and all the specified modifiers. */) | |
6443 | (event_desc) | |
e57d8fd8 | 6444 | Lisp_Object event_desc; |
6da3dd3a RS |
6445 | { |
6446 | Lisp_Object base; | |
6447 | int modifiers = 0; | |
6448 | Lisp_Object rest; | |
6449 | ||
6450 | base = Qnil; | |
e57d8fd8 | 6451 | rest = event_desc; |
6da3dd3a RS |
6452 | while (CONSP (rest)) |
6453 | { | |
6454 | Lisp_Object elt; | |
6455 | int this = 0; | |
6456 | ||
7539e11f KR |
6457 | elt = XCAR (rest); |
6458 | rest = XCDR (rest); | |
6da3dd3a | 6459 | |
3d31316f | 6460 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6461 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6462 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6463 | |
6464 | if (this != 0) | |
6465 | modifiers |= this; | |
6466 | else if (!NILP (base)) | |
6467 | error ("Two bases given in one event"); | |
6468 | else | |
6469 | base = elt; | |
6470 | ||
6da3dd3a RS |
6471 | } |
6472 | ||
3d31316f | 6473 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6474 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6475 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6476 | |
6da3dd3a RS |
6477 | if (INTEGERP (base)) |
6478 | { | |
3d31316f RS |
6479 | /* Turn (shift a) into A. */ |
6480 | if ((modifiers & shift_modifier) != 0 | |
6481 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6482 | { | |
6483 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6484 | modifiers &= ~shift_modifier; | |
6485 | } | |
6486 | ||
6487 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6488 | if (modifiers & ctrl_modifier) |
3d31316f | 6489 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6490 | | make_ctrl_char (XINT (base))); |
6491 | else | |
6492 | return make_number (modifiers | XINT (base)); | |
6493 | } | |
6494 | else if (SYMBOLP (base)) | |
6495 | return apply_modifiers (modifiers, base); | |
6496 | else | |
8c907a56 GM |
6497 | { |
6498 | error ("Invalid base event"); | |
6499 | return Qnil; | |
6500 | } | |
6da3dd3a RS |
6501 | } |
6502 | ||
3d31316f RS |
6503 | /* Try to recognize SYMBOL as a modifier name. |
6504 | Return the modifier flag bit, or 0 if not recognized. */ | |
6505 | ||
6506 | static int | |
6507 | parse_solitary_modifier (symbol) | |
6508 | Lisp_Object symbol; | |
6509 | { | |
1b049b51 | 6510 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6511 | |
1b049b51 | 6512 | switch (SREF (name, 0)) |
3d31316f RS |
6513 | { |
6514 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6515 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6516 | return BIT; |
6517 | ||
6518 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6519 | if (LEN == SBYTES (name) \ |
6520 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6521 | return BIT; |
6522 | ||
6523 | case 'A': | |
6524 | SINGLE_LETTER_MOD (alt_modifier); | |
6525 | break; | |
6526 | ||
6527 | case 'a': | |
6528 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6529 | break; | |
6530 | ||
6531 | case 'C': | |
6532 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6533 | break; | |
6534 | ||
6535 | case 'c': | |
6536 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6537 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6538 | break; | |
6539 | ||
6540 | case 'H': | |
6541 | SINGLE_LETTER_MOD (hyper_modifier); | |
6542 | break; | |
6543 | ||
6544 | case 'h': | |
6545 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6546 | break; | |
6547 | ||
6548 | case 'M': | |
6549 | SINGLE_LETTER_MOD (meta_modifier); | |
6550 | break; | |
6551 | ||
6552 | case 'm': | |
6553 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6554 | break; | |
6555 | ||
6556 | case 'S': | |
6557 | SINGLE_LETTER_MOD (shift_modifier); | |
6558 | break; | |
6559 | ||
6560 | case 's': | |
6561 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6562 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6563 | SINGLE_LETTER_MOD (super_modifier); | |
6564 | break; | |
6565 | ||
6566 | case 'd': | |
6567 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6568 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6569 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6570 | break; | |
6571 | ||
6572 | case 't': | |
6573 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6574 | break; | |
6575 | ||
6576 | #undef SINGLE_LETTER_MOD | |
6577 | #undef MULTI_LETTER_MOD | |
6578 | } | |
6579 | ||
6580 | return 0; | |
6581 | } | |
6582 | ||
6da3dd3a RS |
6583 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6584 | Such a list is not valid as an event, | |
6585 | but it can be a Lucid-style event type list. */ | |
6586 | ||
6587 | int | |
6588 | lucid_event_type_list_p (object) | |
6589 | Lisp_Object object; | |
6590 | { | |
6591 | Lisp_Object tail; | |
6592 | ||
6593 | if (! CONSP (object)) | |
6594 | return 0; | |
902ae620 GM |
6595 | |
6596 | if (EQ (XCAR (object), Qhelp_echo) | |
6597 | || EQ (XCAR (object), Qvertical_line) | |
6598 | || EQ (XCAR (object), Qmode_line) | |
6599 | || EQ (XCAR (object), Qheader_line)) | |
6600 | return 0; | |
6da3dd3a | 6601 | |
7539e11f | 6602 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6603 | { |
6604 | Lisp_Object elt; | |
7539e11f | 6605 | elt = XCAR (tail); |
6da3dd3a RS |
6606 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6607 | return 0; | |
6608 | } | |
6609 | ||
6610 | return NILP (tail); | |
6611 | } | |
284f4730 | 6612 | \f |
284f4730 JB |
6613 | /* Store into *addr a value nonzero if terminal input chars are available. |
6614 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6615 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6616 | (In fact, this may actually read some input.) |
6617 | ||
a2d5fca0 JD |
6618 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6619 | timer events that are ripe. | |
6620 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6621 | events (FOCUS_IN_EVENT). | |
6622 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6623 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6624 | |
6625 | static void | |
a2d5fca0 | 6626 | get_input_pending (addr, flags) |
284f4730 | 6627 | int *addr; |
a2d5fca0 | 6628 | int flags; |
284f4730 JB |
6629 | { |
6630 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 6631 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6632 | |
6633 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6634 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6635 | return; | |
6636 | ||
6637 | /* Try to read some input and see how much we get. */ | |
6638 | gobble_input (0); | |
a2d5fca0 | 6639 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6640 | } |
6641 | ||
81931ba1 | 6642 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6643 | |
07a59269 | 6644 | void |
284f4730 JB |
6645 | gobble_input (expected) |
6646 | int expected; | |
6647 | { | |
6648 | #ifndef VMS | |
6649 | #ifdef SIGIO | |
6650 | if (interrupt_input) | |
6651 | { | |
32676c08 | 6652 | SIGMASKTYPE mask; |
4f8aaa74 | 6653 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6654 | read_avail_input (expected); |
e065a56e | 6655 | sigsetmask (mask); |
284f4730 JB |
6656 | } |
6657 | else | |
81931ba1 | 6658 | #ifdef POLL_FOR_INPUT |
428a555e KL |
6659 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
6660 | but read_socket_hook is not global anymore. Let's pretend that | |
6661 | it's always set. */ | |
6662 | if (!interrupt_input && poll_suppress_count == 0) | |
81931ba1 RS |
6663 | { |
6664 | SIGMASKTYPE mask; | |
4f8aaa74 | 6665 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6666 | read_avail_input (expected); |
6667 | sigsetmask (mask); | |
6668 | } | |
6669 | else | |
87485d6f | 6670 | #endif |
284f4730 JB |
6671 | #endif |
6672 | read_avail_input (expected); | |
6673 | #endif | |
6674 | } | |
a8015ab5 | 6675 | |
3b8f9651 | 6676 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6677 | so that read_key_sequence will notice the new current buffer. */ |
6678 | ||
07a59269 | 6679 | void |
a8015ab5 KH |
6680 | record_asynch_buffer_change () |
6681 | { | |
6682 | struct input_event event; | |
a30f0615 | 6683 | Lisp_Object tem; |
1269a761 | 6684 | EVENT_INIT (event); |
a30f0615 | 6685 | |
3b8f9651 | 6686 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6687 | event.frame_or_window = Qnil; |
da8f7368 | 6688 | event.arg = Qnil; |
241ceaf7 | 6689 | |
f65e6f7d | 6690 | #ifdef subprocesses |
a30f0615 RS |
6691 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6692 | The purpose of the event is to make read_key_sequence look up the | |
6693 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
6694 | and the event could cause trouble by messing up (input-pending-p). */ | |
6695 | tem = Fwaiting_for_user_input_p (); | |
6696 | if (NILP (tem)) | |
6697 | return; | |
f65e6f7d RS |
6698 | #else |
6699 | /* We never need these events if we have no asynchronous subprocesses. */ | |
6700 | return; | |
6701 | #endif | |
a30f0615 | 6702 | |
241ceaf7 RS |
6703 | /* Make sure no interrupt happens while storing the event. */ |
6704 | #ifdef SIGIO | |
6705 | if (interrupt_input) | |
6706 | { | |
6707 | SIGMASKTYPE mask; | |
4f8aaa74 | 6708 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6709 | kbd_buffer_store_event (&event); |
6710 | sigsetmask (mask); | |
6711 | } | |
6712 | else | |
6713 | #endif | |
6714 | { | |
6715 | stop_polling (); | |
6716 | kbd_buffer_store_event (&event); | |
6717 | start_polling (); | |
6718 | } | |
a8015ab5 | 6719 | } |
284f4730 JB |
6720 | \f |
6721 | #ifndef VMS | |
6722 | ||
6723 | /* Read any terminal input already buffered up by the system | |
6724 | into the kbd_buffer, but do not wait. | |
6725 | ||
6726 | EXPECTED should be nonzero if the caller knows there is some input. | |
6727 | ||
6728 | Except on VMS, all input is read by this function. | |
6729 | If interrupt_input is nonzero, this function MUST be called | |
6730 | only when SIGIO is blocked. | |
6731 | ||
6732 | Returns the number of keyboard chars read, or -1 meaning | |
0fc0bac9 | 6733 | this is a bad time to try to read input. */ |
284f4730 JB |
6734 | |
6735 | static int | |
6736 | read_avail_input (expected) | |
6737 | int expected; | |
6738 | { | |
7b00d185 | 6739 | int nread = 0; |
80d4c824 | 6740 | int err = 0; |
7e59217d | 6741 | struct device *d; |
1269a761 | 6742 | |
7e59217d KL |
6743 | /* Loop through the available devices, and call their input hooks. */ |
6744 | d = device_list; | |
d448e982 | 6745 | while (d) |
8f1ce423 | 6746 | { |
7e59217d | 6747 | struct device *next = d->next_device; |
daf01701 | 6748 | |
3b7fbceb | 6749 | if (d->read_socket_hook) |
d448e982 | 6750 | { |
3b7fbceb | 6751 | int nr; |
057a9ab4 | 6752 | struct input_event hold_quit; |
d448e982 | 6753 | |
057a9ab4 KL |
6754 | EVENT_INIT (hold_quit); |
6755 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 6756 | |
057a9ab4 KL |
6757 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6758 | while (nr = (*d->read_socket_hook) (d, expected, &hold_quit), nr > 0) | |
6759 | { | |
6760 | nread += nr; | |
6761 | expected = 0; | |
6762 | } | |
6763 | ||
6764 | if (nr == -1) /* Not OK to read input now. */ | |
6765 | { | |
6766 | err = 1; | |
6767 | } | |
6768 | else if (nr == -2) /* Non-transient error. */ | |
6769 | { | |
6770 | /* The display device terminated; it should be closed. */ | |
6771 | ||
6772 | /* Kill Emacs if this was our last display. */ | |
7e59217d | 6773 | if (! device_list->next_device) |
057a9ab4 KL |
6774 | /* Formerly simply reported no input, but that |
6775 | sometimes led to a failure of Emacs to terminate. | |
6776 | SIGHUP seems appropriate if we can't reach the | |
6777 | terminal. */ | |
6778 | /* ??? Is it really right to send the signal just to | |
6779 | this process rather than to the whole process | |
6780 | group? Perhaps on systems with FIONREAD Emacs is | |
6781 | alone in its group. */ | |
6782 | kill (getpid (), SIGHUP); | |
6783 | ||
7e59217d KL |
6784 | /* XXX Is calling delete_device safe here? It calls Fdelete_frame. */ |
6785 | if (d->delete_device_hook) | |
6786 | (*d->delete_device_hook) (d); | |
057a9ab4 | 6787 | else |
7e59217d | 6788 | delete_device (d); |
057a9ab4 | 6789 | } |
351d2e14 | 6790 | |
057a9ab4 KL |
6791 | if (hold_quit.kind != NO_EVENT) |
6792 | kbd_buffer_store_event (&hold_quit); | |
d448e982 KL |
6793 | } |
6794 | ||
6795 | d = next; | |
8f1ce423 | 6796 | } |
428a555e | 6797 | |
1cbfd764 KL |
6798 | if (err && !nread) |
6799 | nread = -1; | |
6800 | ||
8f1ce423 KL |
6801 | return nread; |
6802 | } | |
6803 | ||
6804 | /* This is the tty way of reading available input. | |
6805 | ||
7e59217d | 6806 | Note that each terminal device has its own `struct device' object, |
8f1ce423 KL |
6807 | and so this function is called once for each individual termcap |
6808 | display. The first parameter indicates which device to read from. */ | |
d448e982 | 6809 | |
8f1ce423 | 6810 | int |
7e59217d | 6811 | tty_read_avail_input (struct device *device, |
057a9ab4 KL |
6812 | int expected, |
6813 | struct input_event *hold_quit) | |
8f1ce423 | 6814 | { |
057a9ab4 KL |
6815 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6816 | the kbd_buffer can really hold. That may prevent loss | |
6817 | of characters on some systems when input is stuffed at us. */ | |
6818 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
8f1ce423 | 6819 | int n_to_read, i; |
7e59217d | 6820 | struct tty_display_info *tty = device->display_info.tty; |
8f1ce423 | 6821 | int nread = 0; |
3b7fbceb | 6822 | |
7e59217d | 6823 | if (device->type != output_termcap) |
8f1ce423 | 6824 | abort (); |
3b7fbceb | 6825 | |
ac3d2625 | 6826 | /* XXX I think the following code should be moved to separate hook |
8f1ce423 | 6827 | functions in system-dependent files. */ |
bc536d84 | 6828 | #ifdef WINDOWSNT |
8f1ce423 | 6829 | return 0; |
bc536d84 | 6830 | #else /* not WINDOWSNT */ |
80e4aa30 | 6831 | #ifdef MSDOS |
8f1ce423 KL |
6832 | n_to_read = dos_keysns (); |
6833 | if (n_to_read == 0) | |
6834 | return 0; | |
3b7fbceb | 6835 | |
8f1ce423 KL |
6836 | cbuf[0] = dos_keyread (); |
6837 | nread = 1; | |
3b7fbceb | 6838 | |
c3a2738c | 6839 | #else /* not MSDOS */ |
9628b887 | 6840 | |
ac3d2625 | 6841 | if (! tty->term_initted) /* In case we get called during bootstrap. */ |
8f1ce423 | 6842 | return 0; |
3b7fbceb | 6843 | |
0b0d3e0b KL |
6844 | if (! tty->input) |
6845 | return 0; /* The terminal is suspended. */ | |
6846 | ||
8f1ce423 | 6847 | /* Determine how many characters we should *try* to read. */ |
284f4730 | 6848 | #ifdef FIONREAD |
8f1ce423 | 6849 | /* Find out how much input is available. */ |
0b0d3e0b | 6850 | if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0) |
8f1ce423 KL |
6851 | { |
6852 | if (! noninteractive) | |
7e59217d | 6853 | return -2; /* Close this device. */ |
8f1ce423 | 6854 | else |
d448e982 | 6855 | n_to_read = 0; |
8f1ce423 KL |
6856 | } |
6857 | if (n_to_read == 0) | |
6858 | return 0; | |
6859 | if (n_to_read > sizeof cbuf) | |
6860 | n_to_read = sizeof cbuf; | |
284f4730 | 6861 | #else /* no FIONREAD */ |
c60ee5e7 | 6862 | #if defined (USG) || defined (DGUX) || defined(CYGWIN) |
8f1ce423 KL |
6863 | /* Read some input if available, but don't wait. */ |
6864 | n_to_read = sizeof cbuf; | |
0b0d3e0b | 6865 | fcntl (fileno (tty->input), F_SETFL, O_NDELAY); |
284f4730 | 6866 | #else |
8f1ce423 | 6867 | you lose; |
284f4730 JB |
6868 | #endif |
6869 | #endif | |
6870 | ||
8f1ce423 KL |
6871 | /* Now read; for one reason or another, this will not block. |
6872 | NREAD is set to the number of chars read. */ | |
6873 | do | |
6874 | { | |
0b0d3e0b | 6875 | nread = emacs_read (fileno (tty->input), cbuf, n_to_read); |
8f1ce423 KL |
6876 | /* POSIX infers that processes which are not in the session leader's |
6877 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
6878 | this part standard and returns -1 from read (0) with errno==EIO | |
6879 | when the control tty is taken away. | |
ac3d2625 | 6880 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ |
8f1ce423 | 6881 | if (nread == -1 && errno == EIO) |
7e59217d | 6882 | return -2; /* Close this device. */ |
762f2b92 | 6883 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
8f1ce423 KL |
6884 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6885 | This looks incorrect, but it isn't, because _BSD causes | |
6886 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6887 | and that causes a value other than 0 when there is no input. */ | |
6888 | if (nread == 0) | |
7e59217d | 6889 | return -2; /* Close this device. */ |
284f4730 | 6890 | #endif |
8f1ce423 KL |
6891 | } |
6892 | while ( | |
6893 | /* We used to retry the read if it was interrupted. | |
6894 | But this does the wrong thing when O_NDELAY causes | |
6895 | an EAGAIN error. Does anybody know of a situation | |
6896 | where a retry is actually needed? */ | |
791587ee | 6897 | #if 0 |
8f1ce423 | 6898 | nread < 0 && (errno == EAGAIN |
6aec06f5 | 6899 | #ifdef EFAULT |
8f1ce423 | 6900 | || errno == EFAULT |
80e4aa30 | 6901 | #endif |
284f4730 | 6902 | #ifdef EBADSLT |
8f1ce423 | 6903 | || errno == EBADSLT |
284f4730 | 6904 | #endif |
8f1ce423 | 6905 | ) |
791587ee | 6906 | #else |
8f1ce423 | 6907 | 0 |
791587ee | 6908 | #endif |
8f1ce423 | 6909 | ); |
284f4730 JB |
6910 | |
6911 | #ifndef FIONREAD | |
c60ee5e7 | 6912 | #if defined (USG) || defined (DGUX) || defined (CYGWIN) |
0b0d3e0b | 6913 | fcntl (fileno (tty->input), F_SETFL, 0); |
c60ee5e7 | 6914 | #endif /* USG or DGUX or CYGWIN */ |
284f4730 | 6915 | #endif /* no FIONREAD */ |
3b7fbceb | 6916 | |
8f1ce423 KL |
6917 | if (nread <= 0) |
6918 | return nread; | |
3b7fbceb | 6919 | |
9628b887 KL |
6920 | #endif /* not MSDOS */ |
6921 | #endif /* not WINDOWSNT */ | |
3b7fbceb | 6922 | |
284f4730 JB |
6923 | for (i = 0; i < nread; i++) |
6924 | { | |
057a9ab4 KL |
6925 | struct input_event buf; |
6926 | EVENT_INIT (buf); | |
6927 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
6928 | buf.modifiers = 0; | |
8f1ce423 | 6929 | if (tty->meta_key == 1 && (cbuf[i] & 0x80)) |
057a9ab4 | 6930 | buf.modifiers = meta_modifier; |
8f1ce423 KL |
6931 | if (tty->meta_key != 2) |
6932 | cbuf[i] &= ~0x80; | |
057a9ab4 KL |
6933 | |
6934 | buf.code = cbuf[i]; | |
ac3d2625 KL |
6935 | /* Set the frame corresponding to the active tty. Note that the |
6936 | value of selected_frame is not reliable here, redisplay tends | |
6937 | to temporarily change it. */ | |
057a9ab4 KL |
6938 | buf.frame_or_window = tty->top_frame; |
6939 | buf.arg = Qnil; | |
6940 | ||
6941 | kbd_buffer_store_event (&buf); | |
6942 | /* Don't look at input that follows a C-g too closely. | |
6943 | This reduces lossage due to autorepeat on C-g. */ | |
6944 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
6945 | && buf.code == quit_char) | |
6946 | break; | |
284f4730 JB |
6947 | } |
6948 | ||
6949 | return nread; | |
6950 | } | |
6951 | #endif /* not VMS */ | |
6952 | \f | |
b65c1b44 SM |
6953 | void |
6954 | handle_async_input () | |
6955 | { | |
6956 | #ifdef BSD4_1 | |
6957 | extern int select_alarmed; | |
6958 | #endif | |
aa477689 | 6959 | |
b65c1b44 SM |
6960 | interrupt_input_pending = 0; |
6961 | ||
6962 | while (1) | |
6963 | { | |
6964 | int nread; | |
6965 | nread = read_avail_input (1); | |
6966 | /* -1 means it's not ok to read the input now. | |
6967 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
6968 | 0 means there was no keyboard input available. */ | |
6969 | if (nread <= 0) | |
6970 | break; | |
6971 | ||
6972 | #ifdef BSD4_1 | |
6973 | select_alarmed = 1; /* Force the select emulator back to life */ | |
6974 | #endif | |
6975 | } | |
6976 | } | |
6977 | ||
284f4730 JB |
6978 | #ifdef SIGIO /* for entire page */ |
6979 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
6980 | ||
4216b545 | 6981 | static SIGTYPE |
284f4730 JB |
6982 | input_available_signal (signo) |
6983 | int signo; | |
6984 | { | |
6985 | /* Must preserve main program's value of errno. */ | |
6986 | int old_errno = errno; | |
5970a8cb | 6987 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
6988 | /* USG systems forget handlers when they are used; |
6989 | must reestablish each time */ | |
6990 | signal (signo, input_available_signal); | |
6991 | #endif /* USG */ | |
6992 | ||
6993 | #ifdef BSD4_1 | |
6994 | sigisheld (SIGIO); | |
6995 | #endif | |
6996 | ||
b65c1b44 SM |
6997 | #ifdef SYNC_INPUT |
6998 | interrupt_input_pending = 1; | |
6999 | #else | |
333f1b6f | 7000 | SIGNAL_THREAD_CHECK (signo); |
bd55c35c | 7001 | #endif |
a25f766a | 7002 | |
bd55c35c JD |
7003 | if (input_available_clear_time) |
7004 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
7005 | ||
7006 | #ifndef SYNC_INPUT | |
b65c1b44 | 7007 | handle_async_input (); |
284f4730 | 7008 | #endif |
284f4730 JB |
7009 | |
7010 | #ifdef BSD4_1 | |
7011 | sigfree (); | |
7012 | #endif | |
7013 | errno = old_errno; | |
7014 | } | |
7015 | #endif /* SIGIO */ | |
ad163903 JB |
7016 | |
7017 | /* Send ourselves a SIGIO. | |
7018 | ||
7019 | This function exists so that the UNBLOCK_INPUT macro in | |
7020 | blockinput.h can have some way to take care of input we put off | |
7021 | dealing with, without assuming that every file which uses | |
7022 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
7023 | void | |
7024 | reinvoke_input_signal () | |
7025 | { | |
df0f2ba1 | 7026 | #ifdef SIGIO |
b65c1b44 | 7027 | handle_async_input (); |
ad163903 JB |
7028 | #endif |
7029 | } | |
7030 | ||
7031 | ||
284f4730 | 7032 | \f |
318ab85c SM |
7033 | static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*)); |
7034 | static Lisp_Object menu_bar_one_keymap_changed_items; | |
b7c49376 RS |
7035 | |
7036 | /* These variables hold the vector under construction within | |
7037 | menu_bar_items and its subroutines, and the current index | |
7038 | for storing into that vector. */ | |
7039 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 7040 | static int menu_bar_items_index; |
5ec75a55 | 7041 | |
b7c49376 RS |
7042 | /* Return a vector of menu items for a menu bar, appropriate |
7043 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 7044 | KEY STRING MAPLIST. |
b7c49376 RS |
7045 | |
7046 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
7047 | |
7048 | Lisp_Object | |
b7c49376 RS |
7049 | menu_bar_items (old) |
7050 | Lisp_Object old; | |
5ec75a55 RS |
7051 | { |
7052 | /* The number of keymaps we're scanning right now, and the number of | |
7053 | keymaps we have allocated space for. */ | |
7054 | int nmaps; | |
7055 | ||
7056 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
7057 | in the current keymaps, or nil where it is not a prefix. */ | |
7058 | Lisp_Object *maps; | |
7059 | ||
aebfea68 | 7060 | Lisp_Object def, tail; |
5ec75a55 RS |
7061 | |
7062 | Lisp_Object result; | |
7063 | ||
7064 | int mapno; | |
47d319aa | 7065 | Lisp_Object oquit; |
5ec75a55 | 7066 | |
b7c49376 RS |
7067 | int i; |
7068 | ||
db60d856 JB |
7069 | /* In order to build the menus, we need to call the keymap |
7070 | accessors. They all call QUIT. But this function is called | |
7071 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
7072 | quitting while building the menus. |
7073 | We do this instead of specbind because (1) errors will clear it anyway | |
7074 | and (2) this avoids risk of specpdl overflow. */ | |
7075 | oquit = Vinhibit_quit; | |
df0f2ba1 | 7076 | Vinhibit_quit = Qt; |
db60d856 | 7077 | |
b7c49376 RS |
7078 | if (!NILP (old)) |
7079 | menu_bar_items_vector = old; | |
7080 | else | |
7081 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
7082 | menu_bar_items_index = 0; | |
7083 | ||
5ec75a55 RS |
7084 | /* Build our list of keymaps. |
7085 | If we recognize a function key and replace its escape sequence in | |
7086 | keybuf with its symbol, or if the sequence starts with a mouse | |
7087 | click and we need to switch buffers, we jump back here to rebuild | |
7088 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7089 | { |
5ec75a55 RS |
7090 | Lisp_Object *tmaps; |
7091 | ||
217258d5 | 7092 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 7093 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 7094 | { |
217258d5 KH |
7095 | /* Yes, use them (if non-nil) as well as the global map. */ |
7096 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7097 | nmaps = 0; | |
7098 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7099 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7100 | if (!NILP (Voverriding_local_map)) | |
7101 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
7102 | } |
7103 | else | |
7104 | { | |
fd646341 KS |
7105 | /* No, so use major and minor mode keymaps and keymap property. |
7106 | Note that menu-bar bindings in the local-map and keymap | |
7107 | properties may not work reliable, as they are only | |
7108 | recognized when the menu-bar (or mode-line) is updated, | |
7109 | which does not normally happen after every command. */ | |
7110 | Lisp_Object tem; | |
7111 | int nminor; | |
7112 | nminor = current_minor_maps (NULL, &tmaps); | |
7113 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7114 | nmaps = 0; | |
7115 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7116 | maps[nmaps++] = tem; | |
7117 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7118 | nmaps += nminor; | |
7119 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 7120 | } |
217258d5 | 7121 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
7122 | } |
7123 | ||
7124 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
7125 | ||
7126 | result = Qnil; | |
7127 | ||
e58aa385 | 7128 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
7129 | if (!NILP (maps[mapno])) |
7130 | { | |
341a09cf SM |
7131 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
7132 | 0, 1); | |
02067692 | 7133 | if (CONSP (def)) |
4216b545 SM |
7134 | { |
7135 | menu_bar_one_keymap_changed_items = Qnil; | |
7136 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
7137 | } | |
25126faa | 7138 | } |
5ec75a55 | 7139 | |
b7c49376 RS |
7140 | /* Move to the end those items that should be at the end. */ |
7141 | ||
7539e11f | 7142 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7143 | { |
b7c49376 RS |
7144 | int i; |
7145 | int end = menu_bar_items_index; | |
7146 | ||
35b3402f | 7147 | for (i = 0; i < end; i += 4) |
7539e11f | 7148 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7149 | { |
35b3402f | 7150 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7151 | /* Move the item at index I to the end, |
7152 | shifting all the others forward. */ | |
7153 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7154 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7155 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7156 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7157 | if (end > i + 4) | |
7158 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 7159 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7160 | (end - i - 4) * sizeof (Lisp_Object)); |
7161 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
7162 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7163 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7164 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7165 | break; |
b7c49376 RS |
7166 | } |
7167 | } | |
9f9c0e27 | 7168 | |
0c9071cd | 7169 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7170 | i = menu_bar_items_index; |
35b3402f | 7171 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7172 | { |
7173 | Lisp_Object tem; | |
b7c49376 RS |
7174 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7175 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7176 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7177 | menu_bar_items_vector = tem; | |
9f9c0e27 | 7178 | } |
b7c49376 RS |
7179 | /* Add this item. */ |
7180 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7181 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7182 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7183 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7184 | menu_bar_items_index = i; |
a73c5e29 | 7185 | |
47d319aa | 7186 | Vinhibit_quit = oquit; |
b7c49376 | 7187 | return menu_bar_items_vector; |
5ec75a55 RS |
7188 | } |
7189 | \f | |
f5e09c8b RS |
7190 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7191 | If there's already an item for KEY, add this DEF to it. */ | |
7192 | ||
e8886a1d RS |
7193 | Lisp_Object item_properties; |
7194 | ||
b7c49376 | 7195 | static void |
4216b545 SM |
7196 | menu_bar_item (key, item, dummy1, dummy2) |
7197 | Lisp_Object key, item, dummy1; | |
7198 | void *dummy2; | |
5ec75a55 | 7199 | { |
e8886a1d | 7200 | struct gcpro gcpro1; |
b7c49376 | 7201 | int i; |
759860a6 | 7202 | Lisp_Object tem; |
5ec75a55 | 7203 | |
e8886a1d | 7204 | if (EQ (item, Qundefined)) |
e58aa385 | 7205 | { |
f5e09c8b | 7206 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7207 | discard any previously made menu bar item. */ |
b7c49376 | 7208 | |
35b3402f | 7209 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7210 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7211 | { | |
35b3402f RS |
7212 | if (menu_bar_items_index > i + 4) |
7213 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 7214 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
7215 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
7216 | menu_bar_items_index -= 4; | |
b7c49376 | 7217 | } |
e58aa385 RS |
7218 | } |
7219 | ||
759860a6 RS |
7220 | /* If this keymap has already contributed to this KEY, |
7221 | don't contribute to it a second time. */ | |
7222 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7223 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7224 | return; |
7225 | ||
7226 | menu_bar_one_keymap_changed_items | |
7227 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7228 | ||
9cd2ced7 SM |
7229 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7230 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7231 | it still correctly hides any further menu item. */ | |
7232 | GCPRO1 (key); | |
7233 | i = parse_menu_item (item, 0, 1); | |
7234 | UNGCPRO; | |
7235 | if (!i) | |
7236 | return; | |
7237 | ||
e8886a1d RS |
7238 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7239 | ||
f5e09c8b | 7240 | /* Find any existing item for this KEY. */ |
35b3402f | 7241 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7242 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7243 | break; | |
7244 | ||
f5e09c8b | 7245 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7246 | if (i == menu_bar_items_index) |
7247 | { | |
7248 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7249 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
7250 | { |
7251 | Lisp_Object tem; | |
b7c49376 RS |
7252 | tem = Fmake_vector (make_number (2 * i), Qnil); |
7253 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
7254 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
7255 | menu_bar_items_vector = tem; | |
7256 | } | |
e8886a1d | 7257 | |
b7c49376 RS |
7258 | /* Add this item. */ |
7259 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7260 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7261 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7262 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7263 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7264 | menu_bar_items_index = i; |
7265 | } | |
e8886a1d | 7266 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7267 | else |
7268 | { | |
7269 | Lisp_Object old; | |
7270 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7271 | /* If the new and the old items are not both keymaps, |
7272 | the lookup will only find `item'. */ | |
7273 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7274 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7275 | } |
5ec75a55 RS |
7276 | } |
7277 | \f | |
e8886a1d RS |
7278 | /* This is used as the handler when calling menu_item_eval_property. */ |
7279 | static Lisp_Object | |
7280 | menu_item_eval_property_1 (arg) | |
7281 | Lisp_Object arg; | |
7282 | { | |
7283 | /* If we got a quit from within the menu computation, | |
7284 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7285 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7286 | Fsignal (Qquit, Qnil); |
7287 | ||
7288 | return Qnil; | |
7289 | } | |
7290 | ||
c60ee5e7 | 7291 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7292 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7293 | Lisp_Object |
e8886a1d RS |
7294 | menu_item_eval_property (sexpr) |
7295 | Lisp_Object sexpr; | |
7296 | { | |
aed13378 | 7297 | int count = SPECPDL_INDEX (); |
e8886a1d | 7298 | Lisp_Object val; |
44e553a3 | 7299 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7300 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7301 | menu_item_eval_property_1); | |
44e553a3 | 7302 | return unbind_to (count, val); |
e8886a1d RS |
7303 | } |
7304 | ||
7305 | /* This function parses a menu item and leaves the result in the | |
7306 | vector item_properties. | |
7307 | ITEM is a key binding, a possible menu item. | |
7308 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
7309 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 7310 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7311 | top level. |
fd3613d7 | 7312 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7313 | parse_menu_item returns true if the item is a menu item and false |
7314 | otherwise. */ | |
7315 | ||
7316 | int | |
7317 | parse_menu_item (item, notreal, inmenubar) | |
7318 | Lisp_Object item; | |
7319 | int notreal, inmenubar; | |
7320 | { | |
adc1d5c8 | 7321 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7322 | Lisp_Object cachelist; |
7323 | Lisp_Object filter; | |
7324 | Lisp_Object keyhint; | |
e8886a1d | 7325 | int i; |
74c1de23 RS |
7326 | int newcache = 0; |
7327 | ||
07ba902e RS |
7328 | cachelist = Qnil; |
7329 | filter = Qnil; | |
7330 | keyhint = Qnil; | |
7331 | ||
e8886a1d RS |
7332 | if (!CONSP (item)) |
7333 | return 0; | |
7334 | ||
e8886a1d RS |
7335 | /* Create item_properties vector if necessary. */ |
7336 | if (NILP (item_properties)) | |
7337 | item_properties | |
7338 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7339 | ||
7340 | /* Initialize optional entries. */ | |
7341 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
3626fb1a GM |
7342 | AREF (item_properties, i) = Qnil; |
7343 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt; | |
c60ee5e7 | 7344 | |
e8886a1d | 7345 | /* Save the item here to protect it from GC. */ |
3626fb1a | 7346 | AREF (item_properties, ITEM_PROPERTY_ITEM) = item; |
e8886a1d | 7347 | |
7539e11f | 7348 | item_string = XCAR (item); |
e8886a1d RS |
7349 | |
7350 | start = item; | |
7539e11f | 7351 | item = XCDR (item); |
e8886a1d RS |
7352 | if (STRINGP (item_string)) |
7353 | { | |
7354 | /* Old format menu item. */ | |
3626fb1a | 7355 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d RS |
7356 | |
7357 | /* Maybe help string. */ | |
7539e11f | 7358 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7359 | { |
3626fb1a | 7360 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7361 | start = item; |
7539e11f | 7362 | item = XCDR (item); |
e8886a1d | 7363 | } |
c60ee5e7 | 7364 | |
31f84d03 | 7365 | /* Maybe key binding cache. */ |
7539e11f KR |
7366 | if (CONSP (item) && CONSP (XCAR (item)) |
7367 | && (NILP (XCAR (XCAR (item))) | |
7368 | || VECTORP (XCAR (XCAR (item))))) | |
e8886a1d | 7369 | { |
7539e11f KR |
7370 | cachelist = XCAR (item); |
7371 | item = XCDR (item); | |
e8886a1d | 7372 | } |
c60ee5e7 | 7373 | |
e8886a1d | 7374 | /* This is the real definition--the function to run. */ |
3626fb1a | 7375 | AREF (item_properties, ITEM_PROPERTY_DEF) = item; |
e8886a1d RS |
7376 | |
7377 | /* Get enable property, if any. */ | |
7378 | if (SYMBOLP (item)) | |
7379 | { | |
7380 | tem = Fget (item, Qmenu_enable); | |
7381 | if (!NILP (tem)) | |
3626fb1a | 7382 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7383 | } |
7384 | } | |
7385 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7386 | { | |
7387 | /* New format menu item. */ | |
3626fb1a | 7388 | AREF (item_properties, ITEM_PROPERTY_NAME) = XCAR (item); |
7539e11f | 7389 | start = XCDR (item); |
e8886a1d RS |
7390 | if (CONSP (start)) |
7391 | { | |
7392 | /* We have a real binding. */ | |
3626fb1a | 7393 | AREF (item_properties, ITEM_PROPERTY_DEF) = XCAR (start); |
e8886a1d | 7394 | |
7539e11f | 7395 | item = XCDR (start); |
e8886a1d | 7396 | /* Is there a cache list with key equivalences. */ |
7539e11f | 7397 | if (CONSP (item) && CONSP (XCAR (item))) |
e8886a1d | 7398 | { |
7539e11f KR |
7399 | cachelist = XCAR (item); |
7400 | item = XCDR (item); | |
e8886a1d RS |
7401 | } |
7402 | ||
7403 | /* Parse properties. */ | |
7539e11f | 7404 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7405 | { |
7539e11f KR |
7406 | tem = XCAR (item); |
7407 | item = XCDR (item); | |
e8886a1d RS |
7408 | |
7409 | if (EQ (tem, QCenable)) | |
3626fb1a | 7410 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item); |
e8886a1d RS |
7411 | else if (EQ (tem, QCvisible) && !notreal) |
7412 | { | |
7413 | /* If got a visible property and that evaluates to nil | |
7414 | then ignore this item. */ | |
7539e11f | 7415 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7416 | if (NILP (tem)) |
adc1d5c8 | 7417 | return 0; |
e8886a1d RS |
7418 | } |
7419 | else if (EQ (tem, QChelp)) | |
3626fb1a | 7420 | AREF (item_properties, ITEM_PROPERTY_HELP) = XCAR (item); |
e8886a1d | 7421 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7422 | filter = item; |
7423 | else if (EQ (tem, QCkey_sequence)) | |
7424 | { | |
7539e11f | 7425 | tem = XCAR (item); |
74c1de23 RS |
7426 | if (NILP (cachelist) |
7427 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
7428 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
7429 | keyhint = item; | |
7430 | } | |
7431 | else if (EQ (tem, QCkeys)) | |
7432 | { | |
7539e11f | 7433 | tem = XCAR (item); |
03cee6ae | 7434 | if (CONSP (tem) || (STRINGP (tem) && NILP (cachelist))) |
3626fb1a | 7435 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
74c1de23 | 7436 | } |
7539e11f | 7437 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7438 | { |
74c1de23 | 7439 | Lisp_Object type; |
7539e11f KR |
7440 | tem = XCAR (item); |
7441 | type = XCAR (tem); | |
e8886a1d RS |
7442 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7443 | { | |
3626fb1a | 7444 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
7539e11f | 7445 | = XCDR (tem); |
3626fb1a | 7446 | AREF (item_properties, ITEM_PROPERTY_TYPE) |
e8886a1d RS |
7447 | = type; |
7448 | } | |
7449 | } | |
7539e11f | 7450 | item = XCDR (item); |
e8886a1d RS |
7451 | } |
7452 | } | |
7453 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7454 | return 0; |
e8886a1d RS |
7455 | } |
7456 | else | |
adc1d5c8 | 7457 | return 0; /* not a menu item */ |
e8886a1d RS |
7458 | |
7459 | /* If item string is not a string, evaluate it to get string. | |
7460 | If we don't get a string, skip this item. */ | |
3626fb1a | 7461 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
e8886a1d RS |
7462 | if (!(STRINGP (item_string) || notreal)) |
7463 | { | |
7464 | item_string = menu_item_eval_property (item_string); | |
7465 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7466 | return 0; |
3626fb1a | 7467 | AREF (item_properties, ITEM_PROPERTY_NAME) = item_string; |
e8886a1d | 7468 | } |
c60ee5e7 | 7469 | |
e8886a1d | 7470 | /* If got a filter apply it on definition. */ |
3626fb1a | 7471 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7472 | if (!NILP (filter)) |
7473 | { | |
7539e11f | 7474 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7475 | list2 (Qquote, def))); |
7476 | ||
3626fb1a | 7477 | AREF (item_properties, ITEM_PROPERTY_DEF) = def; |
e8886a1d RS |
7478 | } |
7479 | ||
e8886a1d | 7480 | /* Enable or disable selection of item. */ |
3626fb1a | 7481 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7482 | if (!EQ (tem, Qt)) |
7483 | { | |
7484 | if (notreal) | |
7485 | tem = Qt; | |
7486 | else | |
7487 | tem = menu_item_eval_property (tem); | |
7488 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 7489 | return 0; /* Ignore disabled items in menu bar. */ |
3626fb1a | 7490 | AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem; |
e8886a1d RS |
7491 | } |
7492 | ||
7189cad8 SM |
7493 | /* If we got no definition, this item is just unselectable text which |
7494 | is OK in a submenu but not in the menubar. */ | |
7495 | if (NILP (def)) | |
7496 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7497 | |
e8886a1d | 7498 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7499 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7500 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7501 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7502 | if (CONSP (tem)) |
e8886a1d | 7503 | { |
3626fb1a GM |
7504 | AREF (item_properties, ITEM_PROPERTY_MAP) = tem; |
7505 | AREF (item_properties, ITEM_PROPERTY_DEF) = tem; | |
e8886a1d RS |
7506 | return 1; |
7507 | } | |
c60ee5e7 | 7508 | |
9ac425d1 RS |
7509 | /* At the top level in the menu bar, do likewise for commands also. |
7510 | The menu bar does not display equivalent key bindings anyway. | |
7511 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7512 | if (inmenubar > 0) | |
7513 | return 1; | |
e8886a1d RS |
7514 | |
7515 | /* This is a command. See if there is an equivalent key binding. */ | |
7516 | if (NILP (cachelist)) | |
7517 | { | |
74c1de23 | 7518 | /* We have to create a cachelist. */ |
e8886a1d | 7519 | CHECK_IMPURE (start); |
f3fbd155 | 7520 | XSETCDR (start, Fcons (Fcons (Qnil, Qnil), XCDR (start))); |
7539e11f | 7521 | cachelist = XCAR (XCDR (start)); |
74c1de23 | 7522 | newcache = 1; |
3626fb1a | 7523 | tem = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7524 | if (!NILP (keyhint)) |
7525 | { | |
f3fbd155 | 7526 | XSETCAR (cachelist, XCAR (keyhint)); |
74c1de23 RS |
7527 | newcache = 0; |
7528 | } | |
7529 | else if (STRINGP (tem)) | |
7530 | { | |
f3fbd155 KR |
7531 | XSETCDR (cachelist, Fsubstitute_command_keys (tem)); |
7532 | XSETCAR (cachelist, Qt); | |
74c1de23 RS |
7533 | } |
7534 | } | |
c60ee5e7 | 7535 | |
7539e11f | 7536 | tem = XCAR (cachelist); |
74c1de23 RS |
7537 | if (!EQ (tem, Qt)) |
7538 | { | |
7539 | int chkcache = 0; | |
7540 | Lisp_Object prefix; | |
7541 | ||
7542 | if (!NILP (tem)) | |
8b9940e6 | 7543 | tem = Fkey_binding (tem, Qnil, Qnil); |
74c1de23 | 7544 | |
3626fb1a | 7545 | prefix = AREF (item_properties, ITEM_PROPERTY_KEYEQ); |
74c1de23 RS |
7546 | if (CONSP (prefix)) |
7547 | { | |
7539e11f KR |
7548 | def = XCAR (prefix); |
7549 | prefix = XCDR (prefix); | |
74c1de23 | 7550 | } |
e8886a1d | 7551 | else |
3626fb1a | 7552 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
74c1de23 | 7553 | |
9867523c | 7554 | if (NILP (XCAR (cachelist))) /* Have no saved key. */ |
74c1de23 RS |
7555 | { |
7556 | if (newcache /* Always check first time. */ | |
7557 | /* Should we check everything when precomputing key | |
7558 | bindings? */ | |
74c1de23 RS |
7559 | /* If something had no key binding before, don't recheck it |
7560 | because that is too slow--except if we have a list of | |
7561 | rebound commands in Vdefine_key_rebound_commands, do | |
7562 | recheck any command that appears in that list. */ | |
7563 | || (CONSP (Vdefine_key_rebound_commands) | |
7564 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
7565 | chkcache = 1; | |
7566 | } | |
7567 | /* We had a saved key. Is it still bound to the command? */ | |
7568 | else if (NILP (tem) | |
03cee6ae GM |
7569 | || (!EQ (tem, def) |
7570 | /* If the command is an alias for another | |
7571 | (such as lmenu.el set it up), check if the | |
7572 | original command matches the cached command. */ | |
7573 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
74c1de23 RS |
7574 | chkcache = 1; /* Need to recompute key binding. */ |
7575 | ||
7576 | if (chkcache) | |
7577 | { | |
7578 | /* Recompute equivalent key binding. If the command is an alias | |
7579 | for another (such as lmenu.el set it up), see if the original | |
7580 | command name has equivalent keys. Otherwise look up the | |
7581 | specified command itself. We don't try both, because that | |
7582 | makes lmenu menus slow. */ | |
3626fb1a GM |
7583 | if (SYMBOLP (def) |
7584 | && SYMBOLP (XSYMBOL (def)->function) | |
74c1de23 RS |
7585 | && ! NILP (Fget (def, Qmenu_alias))) |
7586 | def = XSYMBOL (def)->function; | |
8b9940e6 | 7587 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qt); |
f3fbd155 | 7588 | XSETCAR (cachelist, tem); |
74c1de23 RS |
7589 | if (NILP (tem)) |
7590 | { | |
f3fbd155 | 7591 | XSETCDR (cachelist, Qnil); |
74c1de23 RS |
7592 | chkcache = 0; |
7593 | } | |
7594 | } | |
7539e11f | 7595 | else if (!NILP (keyhint) && !NILP (XCAR (cachelist))) |
74c1de23 | 7596 | { |
7539e11f | 7597 | tem = XCAR (cachelist); |
74c1de23 RS |
7598 | chkcache = 1; |
7599 | } | |
7600 | ||
7601 | newcache = chkcache; | |
7602 | if (chkcache) | |
7603 | { | |
a1bfe073 | 7604 | tem = Fkey_description (tem, Qnil); |
74c1de23 RS |
7605 | if (CONSP (prefix)) |
7606 | { | |
7539e11f KR |
7607 | if (STRINGP (XCAR (prefix))) |
7608 | tem = concat2 (XCAR (prefix), tem); | |
7609 | if (STRINGP (XCDR (prefix))) | |
7610 | tem = concat2 (tem, XCDR (prefix)); | |
74c1de23 | 7611 | } |
f3fbd155 | 7612 | XSETCDR (cachelist, tem); |
74c1de23 RS |
7613 | } |
7614 | } | |
7615 | ||
7539e11f | 7616 | tem = XCDR (cachelist); |
74c1de23 | 7617 | if (newcache && !NILP (tem)) |
e8886a1d | 7618 | { |
74c1de23 | 7619 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
f3fbd155 | 7620 | XSETCDR (cachelist, tem); |
e8886a1d RS |
7621 | } |
7622 | ||
7623 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
7624 | if (notreal) | |
adc1d5c8 | 7625 | return 1; |
e8886a1d RS |
7626 | |
7627 | /* If we have an equivalent key binding, use that. */ | |
3626fb1a | 7628 | AREF (item_properties, ITEM_PROPERTY_KEYEQ) = tem; |
adc1d5c8 RS |
7629 | |
7630 | /* Include this when menu help is implemented. | |
7631 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7632 | if (!(NILP (tem) || STRINGP (tem))) | |
7633 | { | |
7634 | tem = menu_item_eval_property (tem); | |
7635 | if (!STRINGP (tem)) | |
7636 | tem = Qnil; | |
7637 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7638 | } | |
e8886a1d RS |
7639 | */ |
7640 | ||
c60ee5e7 | 7641 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 7642 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7643 | if (!NILP (tem)) |
3626fb1a | 7644 | AREF (item_properties, ITEM_PROPERTY_SELECTED) |
e8886a1d RS |
7645 | = menu_item_eval_property (tem); |
7646 | ||
e8886a1d RS |
7647 | return 1; |
7648 | } | |
7ee32cda GM |
7649 | |
7650 | ||
7651 | \f | |
7652 | /*********************************************************************** | |
7653 | Tool-bars | |
7654 | ***********************************************************************/ | |
7655 | ||
9ea173e8 | 7656 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7657 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7658 | in the vector. */ |
7ee32cda | 7659 | |
9ea173e8 | 7660 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7661 | |
9ea173e8 GM |
7662 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7663 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7664 | |
9ea173e8 | 7665 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7666 | |
9ea173e8 | 7667 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7668 | |
9ea173e8 | 7669 | static int ntool_bar_items; |
7ee32cda | 7670 | |
9ea173e8 | 7671 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 7672 | |
9ea173e8 | 7673 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
7674 | Lisp_Object QCimage; |
7675 | ||
7676 | /* Function prototypes. */ | |
7677 | ||
9ea173e8 GM |
7678 | static void init_tool_bar_items P_ ((Lisp_Object)); |
7679 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7680 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
7681 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
7682 | |
7683 | ||
9ea173e8 | 7684 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7685 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7686 | tool bar items found. */ |
7ee32cda GM |
7687 | |
7688 | Lisp_Object | |
9ea173e8 | 7689 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
7690 | Lisp_Object reuse; |
7691 | int *nitems; | |
7692 | { | |
7693 | Lisp_Object *maps; | |
7694 | int nmaps, i; | |
7695 | Lisp_Object oquit; | |
7696 | Lisp_Object *tmaps; | |
7ee32cda GM |
7697 | |
7698 | *nitems = 0; | |
7699 | ||
7700 | /* In order to build the menus, we need to call the keymap | |
7701 | accessors. They all call QUIT. But this function is called | |
7702 | during redisplay, during which a quit is fatal. So inhibit | |
7703 | quitting while building the menus. We do this instead of | |
7704 | specbind because (1) errors will clear it anyway and (2) this | |
7705 | avoids risk of specpdl overflow. */ | |
7706 | oquit = Vinhibit_quit; | |
7707 | Vinhibit_quit = Qt; | |
c60ee5e7 | 7708 | |
9ea173e8 GM |
7709 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7710 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7711 | |
7712 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7713 | to process. */ | |
c60ee5e7 | 7714 | |
7ee32cda GM |
7715 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
7716 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7717 | { | |
7718 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7719 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7720 | nmaps = 0; | |
7721 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7722 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7723 | if (!NILP (Voverriding_local_map)) | |
7724 | maps[nmaps++] = Voverriding_local_map; | |
7725 | } | |
7726 | else | |
7727 | { | |
fd646341 KS |
7728 | /* No, so use major and minor mode keymaps and keymap property. |
7729 | Note that tool-bar bindings in the local-map and keymap | |
7730 | properties may not work reliable, as they are only | |
7731 | recognized when the tool-bar (or mode-line) is updated, | |
7732 | which does not normally happen after every command. */ | |
7733 | Lisp_Object tem; | |
7734 | int nminor; | |
7735 | nminor = current_minor_maps (NULL, &tmaps); | |
7736 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7737 | nmaps = 0; | |
7738 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7739 | maps[nmaps++] = tem; | |
7740 | bcopy (tmaps, (void *) (maps + nmaps), nminor * sizeof (maps[0])); | |
7741 | nmaps += nminor; | |
7742 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7743 | } |
7744 | ||
7745 | /* Add global keymap at the end. */ | |
7746 | maps[nmaps++] = current_global_map; | |
7747 | ||
7748 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7749 | key `tool-bar'. */ |
7ee32cda GM |
7750 | for (i = nmaps - 1; i >= 0; --i) |
7751 | if (!NILP (maps[i])) | |
7752 | { | |
7753 | Lisp_Object keymap; | |
db785038 | 7754 | |
341a09cf | 7755 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7756 | if (CONSP (keymap)) |
7ee32cda GM |
7757 | { |
7758 | Lisp_Object tail; | |
c60ee5e7 | 7759 | |
7ee32cda | 7760 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ |
7539e11f | 7761 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
7ee32cda GM |
7762 | { |
7763 | Lisp_Object keydef = XCAR (tail); | |
7764 | if (CONSP (keydef)) | |
9ea173e8 | 7765 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
7766 | } |
7767 | } | |
7768 | } | |
7769 | ||
7770 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7771 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7772 | return tool_bar_items_vector; | |
7ee32cda GM |
7773 | } |
7774 | ||
7775 | ||
7776 | /* Process the definition of KEY which is DEF. */ | |
7777 | ||
7778 | static void | |
9ea173e8 | 7779 | process_tool_bar_item (key, def) |
7ee32cda GM |
7780 | Lisp_Object key, def; |
7781 | { | |
7782 | int i; | |
7783 | extern Lisp_Object Qundefined; | |
7784 | struct gcpro gcpro1, gcpro2; | |
7785 | ||
9ea173e8 | 7786 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7787 | eval. */ |
7788 | GCPRO2 (key, def); | |
7789 | ||
7790 | if (EQ (def, Qundefined)) | |
7791 | { | |
7792 | /* If a map has an explicit `undefined' as definition, | |
7793 | discard any previously made item. */ | |
9ea173e8 | 7794 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7795 | { |
9ea173e8 | 7796 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 7797 | |
9ea173e8 | 7798 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7799 | { |
9ea173e8 GM |
7800 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
7801 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
7802 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 7803 | * sizeof (Lisp_Object))); |
9ea173e8 | 7804 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7805 | break; |
7806 | } | |
7807 | } | |
7808 | } | |
9ea173e8 GM |
7809 | else if (parse_tool_bar_item (key, def)) |
7810 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7811 | more than one definition for the same key. */ |
9ea173e8 | 7812 | append_tool_bar_item (); |
7ee32cda GM |
7813 | |
7814 | UNGCPRO; | |
7815 | } | |
7816 | ||
7817 | ||
9ea173e8 GM |
7818 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7819 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7820 | invalid. |
7821 | ||
7822 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 7823 | |
7ee32cda GM |
7824 | CAPTION is the caption of the item, If it's not a string, it is |
7825 | evaluated to get a string. | |
c60ee5e7 | 7826 | |
9ea173e8 | 7827 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7828 | as binding are currently ignored. |
7829 | ||
7830 | The following properties are recognized: | |
7831 | ||
7832 | - `:enable FORM'. | |
c60ee5e7 | 7833 | |
9ea173e8 GM |
7834 | FORM is evaluated and specifies whether the tool bar item is |
7835 | enabled or disabled. | |
c60ee5e7 | 7836 | |
7ee32cda | 7837 | - `:visible FORM' |
c60ee5e7 | 7838 | |
9ea173e8 | 7839 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 7840 | |
7ee32cda GM |
7841 | - `:filter FUNCTION' |
7842 | ||
7843 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
7844 | result is stored as the new binding. | |
c60ee5e7 | 7845 | |
7ee32cda GM |
7846 | - `:button (TYPE SELECTED)' |
7847 | ||
7848 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
7849 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 7850 | |
7ee32cda GM |
7851 | - `:image IMAGES' |
7852 | ||
7853 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 7854 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 7855 | |
7ee32cda | 7856 | - `:help HELP-STRING'. |
c60ee5e7 | 7857 | |
9ea173e8 | 7858 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
7859 | |
7860 | static int | |
9ea173e8 | 7861 | parse_tool_bar_item (key, item) |
7ee32cda GM |
7862 | Lisp_Object key, item; |
7863 | { | |
9ea173e8 GM |
7864 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
7865 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
7866 | |
7867 | Lisp_Object filter = Qnil; | |
7868 | Lisp_Object caption; | |
7ee32cda | 7869 | int i; |
7ee32cda | 7870 | |
8c907a56 GM |
7871 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
7872 | Rule out items that aren't lists, don't start with | |
7873 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda GM |
7874 | list. */ |
7875 | if (!CONSP (item) | |
7876 | || !EQ (XCAR (item), Qmenu_item) | |
7877 | || (item = XCDR (item), | |
7878 | !CONSP (item))) | |
7879 | return 0; | |
7880 | ||
9ea173e8 | 7881 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 7882 | defaults. */ |
9ea173e8 | 7883 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 7884 | { |
9ea173e8 | 7885 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
7886 | PROP (i) = Qnil; |
7887 | } | |
7888 | else | |
9ea173e8 GM |
7889 | tool_bar_item_properties |
7890 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 7891 | |
7ee32cda | 7892 | /* Set defaults. */ |
9ea173e8 GM |
7893 | PROP (TOOL_BAR_ITEM_KEY) = key; |
7894 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 7895 | |
7ee32cda GM |
7896 | /* Get the caption of the item. If the caption is not a string, |
7897 | evaluate it to get a string. If we don't get a string, skip this | |
7898 | item. */ | |
7899 | caption = XCAR (item); | |
7900 | if (!STRINGP (caption)) | |
7901 | { | |
7902 | caption = menu_item_eval_property (caption); | |
7903 | if (!STRINGP (caption)) | |
7904 | return 0; | |
7905 | } | |
9ea173e8 | 7906 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
7907 | |
7908 | /* Give up if rest following the caption is not a list. */ | |
7909 | item = XCDR (item); | |
7910 | if (!CONSP (item)) | |
7911 | return 0; | |
7912 | ||
7913 | /* Store the binding. */ | |
9ea173e8 | 7914 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
7915 | item = XCDR (item); |
7916 | ||
8c907a56 GM |
7917 | /* Ignore cached key binding, if any. */ |
7918 | if (CONSP (item) && CONSP (XCAR (item))) | |
7919 | item = XCDR (item); | |
7920 | ||
7ee32cda GM |
7921 | /* Process the rest of the properties. */ |
7922 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
7923 | { | |
7924 | Lisp_Object key, value; | |
7925 | ||
7926 | key = XCAR (item); | |
7927 | value = XCAR (XCDR (item)); | |
7928 | ||
7929 | if (EQ (key, QCenable)) | |
7930 | /* `:enable FORM'. */ | |
9ea173e8 | 7931 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
7932 | else if (EQ (key, QCvisible)) |
7933 | { | |
7934 | /* `:visible FORM'. If got a visible property and that | |
7935 | evaluates to nil then ignore this item. */ | |
7936 | if (NILP (menu_item_eval_property (value))) | |
7937 | return 0; | |
7938 | } | |
7939 | else if (EQ (key, QChelp)) | |
7940 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 7941 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
7942 | else if (EQ (key, QCfilter)) |
7943 | /* ':filter FORM'. */ | |
7944 | filter = value; | |
7945 | else if (EQ (key, QCbutton) && CONSP (value)) | |
7946 | { | |
7947 | /* `:button (TYPE . SELECTED)'. */ | |
7948 | Lisp_Object type, selected; | |
7949 | ||
7950 | type = XCAR (value); | |
7951 | selected = XCDR (value); | |
7952 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
7953 | { | |
9ea173e8 GM |
7954 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
7955 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
7956 | } |
7957 | } | |
7958 | else if (EQ (key, QCimage) | |
7959 | && (CONSP (value) | |
7960 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
7961 | /* Value is either a single image specification or a vector | |
27fd22dc | 7962 | of 4 such specifications for the different button states. */ |
9ea173e8 | 7963 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
7964 | } |
7965 | ||
7966 | /* If got a filter apply it on binding. */ | |
7967 | if (!NILP (filter)) | |
9ea173e8 | 7968 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
7969 | = menu_item_eval_property (list2 (filter, |
7970 | list2 (Qquote, | |
9ea173e8 | 7971 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
7972 | |
7973 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 7974 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
7975 | return 0; |
7976 | ||
7977 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
7978 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
7979 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
7980 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 7981 | |
c60ee5e7 | 7982 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
7983 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
7984 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
7985 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
7986 | |
7987 | return 1; | |
c60ee5e7 | 7988 | |
7ee32cda GM |
7989 | #undef PROP |
7990 | } | |
7991 | ||
7992 | ||
9ea173e8 GM |
7993 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
7994 | that can be reused. */ | |
7ee32cda GM |
7995 | |
7996 | static void | |
9ea173e8 | 7997 | init_tool_bar_items (reuse) |
7ee32cda GM |
7998 | Lisp_Object reuse; |
7999 | { | |
8000 | if (VECTORP (reuse)) | |
9ea173e8 | 8001 | tool_bar_items_vector = reuse; |
7ee32cda | 8002 | else |
9ea173e8 GM |
8003 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
8004 | ntool_bar_items = 0; | |
7ee32cda GM |
8005 | } |
8006 | ||
8007 | ||
9ea173e8 GM |
8008 | /* Append parsed tool bar item properties from |
8009 | tool_bar_item_properties */ | |
7ee32cda GM |
8010 | |
8011 | static void | |
9ea173e8 | 8012 | append_tool_bar_item () |
7ee32cda GM |
8013 | { |
8014 | Lisp_Object *to, *from; | |
c60ee5e7 | 8015 | |
9ea173e8 GM |
8016 | /* Enlarge tool_bar_items_vector if necessary. */ |
8017 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
8018 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
8019 | { |
8020 | Lisp_Object new_vector; | |
9ea173e8 | 8021 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
8022 | |
8023 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 8024 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
8025 | XVECTOR (new_vector)->contents, |
8026 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 8027 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
8028 | } |
8029 | ||
9ea173e8 GM |
8030 | /* Append entries from tool_bar_item_properties to the end of |
8031 | tool_bar_items_vector. */ | |
8032 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
8033 | from = XVECTOR (tool_bar_item_properties)->contents; | |
8034 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
8035 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
8036 | } |
8037 | ||
8038 | ||
8039 | ||
8040 | ||
e8886a1d | 8041 | \f |
dcc408a0 RS |
8042 | /* Read a character using menus based on maps in the array MAPS. |
8043 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
8044 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
8045 | |
8046 | PREV_EVENT is the previous input event, or nil if we are reading | |
8047 | the first event of a key sequence. | |
8048 | ||
83d68044 | 8049 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 8050 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 8051 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
8052 | |
8053 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 8054 | and the strings associated with various map elements. |
8150596a RS |
8055 | |
8056 | This can be done with X menus or with menus put in the minibuf. | |
8057 | These are done in different ways, depending on how the input will be read. | |
8058 | Menus using X are done after auto-saving in read-char, getting the input | |
8059 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
8060 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 8061 | |
7617111f | 8062 | static Lisp_Object |
8150596a | 8063 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
8064 | int nmaps; |
8065 | Lisp_Object *maps; | |
8066 | Lisp_Object prev_event; | |
8067 | int *used_mouse_menu; | |
284f4730 | 8068 | { |
7d6de002 | 8069 | int mapno; |
14e40288 | 8070 | register Lisp_Object name = Qnil; |
7d6de002 | 8071 | |
6569cc8d JB |
8072 | if (used_mouse_menu) |
8073 | *used_mouse_menu = 0; | |
284f4730 JB |
8074 | |
8075 | /* Use local over global Menu maps */ | |
8076 | ||
7d6de002 RS |
8077 | if (! menu_prompting) |
8078 | return Qnil; | |
8079 | ||
03361bcc RS |
8080 | /* Optionally disregard all but the global map. */ |
8081 | if (inhibit_local_menu_bar_menus) | |
8082 | { | |
8083 | maps += (nmaps - 1); | |
8084 | nmaps = 1; | |
8085 | } | |
8086 | ||
7d6de002 RS |
8087 | /* Get the menu name from the first map that has one (a prompt string). */ |
8088 | for (mapno = 0; mapno < nmaps; mapno++) | |
8089 | { | |
bdb7aa47 | 8090 | name = Fkeymap_prompt (maps[mapno]); |
7d6de002 RS |
8091 | if (!NILP (name)) |
8092 | break; | |
8093 | } | |
284f4730 | 8094 | |
7d6de002 | 8095 | /* If we don't have any menus, just read a character normally. */ |
fa113341 | 8096 | if (!STRINGP (name)) |
7d6de002 RS |
8097 | return Qnil; |
8098 | ||
1f5b1641 | 8099 | #ifdef HAVE_MENUS |
7d6de002 RS |
8100 | /* If we got to this point via a mouse click, |
8101 | use a real menu for mouse selection. */ | |
5a8d99e0 | 8102 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
8103 | && !EQ (XCAR (prev_event), Qmenu_bar) |
8104 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
8105 | { |
8106 | /* Display the menu and get the selection. */ | |
8107 | Lisp_Object *realmaps | |
8108 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
8109 | Lisp_Object value; | |
8110 | int nmaps1 = 0; | |
8111 | ||
8112 | /* Use the maps that are not nil. */ | |
8113 | for (mapno = 0; mapno < nmaps; mapno++) | |
8114 | if (!NILP (maps[mapno])) | |
8115 | realmaps[nmaps1++] = maps[mapno]; | |
8116 | ||
8117 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
8118 | if (CONSP (value)) |
8119 | { | |
68f297c5 RS |
8120 | Lisp_Object tem; |
8121 | ||
7539e11f | 8122 | record_menu_key (XCAR (value)); |
8eb4d8ef | 8123 | |
68f297c5 RS |
8124 | /* If we got multiple events, unread all but |
8125 | the first. | |
8126 | There is no way to prevent those unread events | |
8127 | from showing up later in last_nonmenu_event. | |
8128 | So turn symbol and integer events into lists, | |
8129 | to indicate that they came from a mouse menu, | |
8130 | so that when present in last_nonmenu_event | |
8131 | they won't confuse things. */ | |
f4e05d97 | 8132 | for (tem = XCDR (value); !NILP (tem); tem = XCDR (tem)) |
8eb4d8ef | 8133 | { |
7539e11f KR |
8134 | record_menu_key (XCAR (tem)); |
8135 | if (SYMBOLP (XCAR (tem)) | |
8136 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8137 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8138 | } |
68f297c5 | 8139 | |
663258f2 JB |
8140 | /* If we got more than one event, put all but the first |
8141 | onto this list to be read later. | |
8142 | Return just the first event now. */ | |
24597608 | 8143 | Vunread_command_events |
7539e11f KR |
8144 | = nconc2 (XCDR (value), Vunread_command_events); |
8145 | value = XCAR (value); | |
663258f2 | 8146 | } |
1c90c381 | 8147 | else if (NILP (value)) |
dcc408a0 | 8148 | value = Qt; |
6569cc8d JB |
8149 | if (used_mouse_menu) |
8150 | *used_mouse_menu = 1; | |
7d6de002 RS |
8151 | return value; |
8152 | } | |
1f5b1641 | 8153 | #endif /* HAVE_MENUS */ |
8150596a RS |
8154 | return Qnil ; |
8155 | } | |
8156 | ||
af2b7cc9 KS |
8157 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8158 | We make this bigger when necessary, and never free it. */ | |
8159 | static char *read_char_minibuf_menu_text; | |
8160 | /* Size of that buffer. */ | |
8161 | static int read_char_minibuf_menu_width; | |
8162 | ||
8150596a | 8163 | static Lisp_Object |
24597608 | 8164 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
8165 | int commandflag ; |
8166 | int nmaps; | |
8167 | Lisp_Object *maps; | |
8168 | { | |
8169 | int mapno; | |
8170 | register Lisp_Object name; | |
af2b7cc9 | 8171 | int nlength; |
14e40288 | 8172 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8173 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8174 | int idx = -1; |
af2b7cc9 | 8175 | int nobindings = 1; |
8150596a | 8176 | Lisp_Object rest, vector; |
af2b7cc9 | 8177 | char *menu; |
8150596a | 8178 | |
8c907a56 | 8179 | vector = Qnil; |
7189cad8 | 8180 | name = Qnil; |
8c907a56 | 8181 | |
8150596a RS |
8182 | if (! menu_prompting) |
8183 | return Qnil; | |
8184 | ||
af2b7cc9 KS |
8185 | /* Make sure we have a big enough buffer for the menu text. */ |
8186 | if (read_char_minibuf_menu_text == 0) | |
8187 | { | |
8188 | read_char_minibuf_menu_width = width + 4; | |
8189 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8190 | } | |
8191 | else if (width + 4 > read_char_minibuf_menu_width) | |
8192 | { | |
8193 | read_char_minibuf_menu_width = width + 4; | |
8194 | read_char_minibuf_menu_text | |
8195 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8196 | } | |
8197 | menu = read_char_minibuf_menu_text; | |
8198 | ||
8150596a RS |
8199 | /* Get the menu name from the first map that has one (a prompt string). */ |
8200 | for (mapno = 0; mapno < nmaps; mapno++) | |
8201 | { | |
bdb7aa47 | 8202 | name = Fkeymap_prompt (maps[mapno]); |
8150596a RS |
8203 | if (!NILP (name)) |
8204 | break; | |
8205 | } | |
8206 | ||
8207 | /* If we don't have any menus, just read a character normally. */ | |
fa113341 | 8208 | if (!STRINGP (name)) |
8150596a | 8209 | return Qnil; |
284f4730 | 8210 | |
af2b7cc9 | 8211 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8212 | strcpy (menu, SDATA (name)); |
8213 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8214 | menu[nlength++] = ':'; |
8215 | menu[nlength++] = ' '; | |
8216 | menu[nlength] = 0; | |
8217 | ||
7d6de002 RS |
8218 | /* Start prompting at start of first map. */ |
8219 | mapno = 0; | |
8220 | rest = maps[mapno]; | |
284f4730 | 8221 | |
af2b7cc9 KS |
8222 | /* Present the documented bindings, a line at a time. */ |
8223 | while (1) | |
284f4730 | 8224 | { |
af2b7cc9 KS |
8225 | int notfirst = 0; |
8226 | int i = nlength; | |
8227 | Lisp_Object obj; | |
8228 | int ch; | |
8229 | Lisp_Object orig_defn_macro; | |
284f4730 | 8230 | |
af2b7cc9 KS |
8231 | /* Loop over elements of map. */ |
8232 | while (i < width) | |
284f4730 | 8233 | { |
af2b7cc9 | 8234 | Lisp_Object elt; |
284f4730 | 8235 | |
af2b7cc9 KS |
8236 | /* If reached end of map, start at beginning of next map. */ |
8237 | if (NILP (rest)) | |
8238 | { | |
8239 | mapno++; | |
8240 | /* At end of last map, wrap around to first map if just starting, | |
8241 | or end this line if already have something on it. */ | |
8242 | if (mapno == nmaps) | |
8243 | { | |
8244 | mapno = 0; | |
8245 | if (notfirst || nobindings) break; | |
8246 | } | |
8247 | rest = maps[mapno]; | |
8248 | } | |
7d6de002 | 8249 | |
af2b7cc9 KS |
8250 | /* Look at the next element of the map. */ |
8251 | if (idx >= 0) | |
8252 | elt = XVECTOR (vector)->contents[idx]; | |
8253 | else | |
8254 | elt = Fcar_safe (rest); | |
7d6de002 | 8255 | |
af2b7cc9 | 8256 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8257 | { |
af2b7cc9 KS |
8258 | /* If we found a dense table in the keymap, |
8259 | advanced past it, but start scanning its contents. */ | |
8260 | rest = Fcdr_safe (rest); | |
8261 | vector = elt; | |
8262 | idx = 0; | |
284f4730 | 8263 | } |
7d6de002 RS |
8264 | else |
8265 | { | |
af2b7cc9 KS |
8266 | /* An ordinary element. */ |
8267 | Lisp_Object event, tem; | |
7d6de002 | 8268 | |
af2b7cc9 KS |
8269 | if (idx < 0) |
8270 | { | |
8271 | event = Fcar_safe (elt); /* alist */ | |
8272 | elt = Fcdr_safe (elt); | |
8273 | } | |
8274 | else | |
8275 | { | |
8276 | XSETINT (event, idx); /* vector */ | |
8277 | } | |
284f4730 | 8278 | |
af2b7cc9 KS |
8279 | /* Ignore the element if it has no prompt string. */ |
8280 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) | |
8281 | { | |
8282 | /* 1 if the char to type matches the string. */ | |
8283 | int char_matches; | |
8284 | Lisp_Object upcased_event, downcased_event; | |
8285 | Lisp_Object desc = Qnil; | |
8286 | Lisp_Object s | |
8287 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8288 | ||
8289 | upcased_event = Fupcase (event); | |
8290 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8291 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8292 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8293 | if (! char_matches) |
8294 | desc = Fsingle_key_description (event, Qnil); | |
8295 | ||
8296 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8297 | the prefix is what the user has already typed. */ | |
8298 | tem | |
8299 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8300 | if (!NILP (tem)) | |
8301 | /* Insert equivalent keybinding. */ | |
8302 | s = concat2 (s, tem); | |
8303 | #endif | |
8304 | tem | |
8305 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8306 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8307 | { | |
8308 | /* Insert button prefix. */ | |
8309 | Lisp_Object selected | |
8310 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8311 | if (EQ (tem, QCradio)) | |
8312 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8313 | else | |
8314 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8315 | s = concat2 (tem, s); | |
8316 | } | |
c60ee5e7 | 8317 | |
af2b7cc9 KS |
8318 | |
8319 | /* If we have room for the prompt string, add it to this line. | |
8320 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8321 | if ((SCHARS (s) + i + 2 |
8322 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8323 | < width |
8324 | || !notfirst) | |
8325 | { | |
8326 | int thiswidth; | |
8327 | ||
8328 | /* Punctuate between strings. */ | |
8329 | if (notfirst) | |
8330 | { | |
8331 | strcpy (menu + i, ", "); | |
8332 | i += 2; | |
8333 | } | |
8334 | notfirst = 1; | |
8335 | nobindings = 0 ; | |
8336 | ||
8337 | /* If the char to type doesn't match the string's | |
8338 | first char, explicitly show what char to type. */ | |
8339 | if (! char_matches) | |
8340 | { | |
8341 | /* Add as much of string as fits. */ | |
d5db4077 | 8342 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8343 | if (thiswidth + i > width) |
8344 | thiswidth = width - i; | |
d5db4077 | 8345 | bcopy (SDATA (desc), menu + i, thiswidth); |
af2b7cc9 KS |
8346 | i += thiswidth; |
8347 | strcpy (menu + i, " = "); | |
8348 | i += 3; | |
8349 | } | |
8350 | ||
8351 | /* Add as much of string as fits. */ | |
d5db4077 | 8352 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8353 | if (thiswidth + i > width) |
8354 | thiswidth = width - i; | |
d5db4077 | 8355 | bcopy (SDATA (s), menu + i, thiswidth); |
af2b7cc9 KS |
8356 | i += thiswidth; |
8357 | menu[i] = 0; | |
8358 | } | |
8359 | else | |
8360 | { | |
8361 | /* If this element does not fit, end the line now, | |
8362 | and save the element for the next line. */ | |
8363 | strcpy (menu + i, "..."); | |
8364 | break; | |
8365 | } | |
8366 | } | |
8367 | ||
8368 | /* Move past this element. */ | |
8369 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8370 | /* Handle reaching end of dense table. */ | |
8371 | idx = -1; | |
8372 | if (idx >= 0) | |
8373 | idx++; | |
8374 | else | |
8375 | rest = Fcdr_safe (rest); | |
8376 | } | |
325309f5 | 8377 | } |
8150596a | 8378 | |
af2b7cc9 | 8379 | /* Prompt with that and read response. */ |
c60ee5e7 | 8380 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8381 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8382 | |
af2b7cc9 KS |
8383 | /* Make believe its not a keyboard macro in case the help char |
8384 | is pressed. Help characters are not recorded because menu prompting | |
8385 | is not used on replay. | |
8386 | */ | |
8387 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8388 | current_kboard->defining_kbd_macro = Qnil; | |
8389 | do | |
8390 | obj = read_char (commandflag, 0, 0, Qt, 0); | |
8391 | while (BUFFERP (obj)); | |
8392 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8393 | |
af2b7cc9 KS |
8394 | if (!INTEGERP (obj)) |
8395 | return obj; | |
8396 | else | |
8397 | ch = XINT (obj); | |
8398 | ||
8399 | if (! EQ (obj, menu_prompt_more_char) | |
8400 | && (!INTEGERP (menu_prompt_more_char) | |
8401 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8402 | { | |
8403 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8404 | store_kbd_macro_char (obj); | |
8405 | return obj; | |
8406 | } | |
8407 | /* Help char - go round again */ | |
8408 | } | |
284f4730 | 8409 | } |
284f4730 JB |
8410 | \f |
8411 | /* Reading key sequences. */ | |
8412 | ||
8413 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8414 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8415 | keymap, or nil otherwise. Return the index of the first keymap in | |
8416 | which KEY has any binding, or NMAPS if no map has a binding. | |
8417 | ||
8418 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8419 | followed by the corresponding non-meta character. Keymaps in | |
8420 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8421 | NEXT. | |
8422 | ||
88cb0656 JB |
8423 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8424 | unmodified. | |
8425 | ||
569871d2 | 8426 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8427 | |
8428 | static int | |
4e50f26a | 8429 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
8430 | Lisp_Object key; |
8431 | Lisp_Object *current, *defs, *next; | |
8432 | int nmaps; | |
8433 | { | |
8434 | int i, first_binding; | |
8435 | ||
284f4730 JB |
8436 | first_binding = nmaps; |
8437 | for (i = nmaps - 1; i >= 0; i--) | |
8438 | { | |
8439 | if (! NILP (current[i])) | |
8440 | { | |
fe5b94c5 | 8441 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8442 | if (! NILP (defs[i])) |
8443 | first_binding = i; | |
8444 | } | |
8445 | else | |
8446 | defs[i] = Qnil; | |
8447 | } | |
8448 | ||
284f4730 | 8449 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8450 | if (first_binding < nmaps) |
8451 | for (i = 0; i < nmaps; i++) | |
02067692 | 8452 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8453 | |
8454 | return first_binding; | |
8455 | } | |
8456 | ||
a7f26f28 SM |
8457 | /* Structure used to keep track of partial application of key remapping |
8458 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8459 | typedef struct keyremap | |
8460 | { | |
24d80a06 | 8461 | Lisp_Object map, parent; |
a7f26f28 SM |
8462 | int start, end; |
8463 | } keyremap; | |
8464 | ||
fe5b94c5 SM |
8465 | /* Lookup KEY in MAP. |
8466 | MAP is a keymap mapping keys to key vectors or functions. | |
8467 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8468 | the function is called with PROMPT as parameter and its return | |
8469 | value is used as the return value of this function (after checking | |
8470 | that it is indeed a vector). */ | |
8471 | ||
8472 | static Lisp_Object | |
8473 | access_keymap_keyremap (map, key, prompt, do_funcall) | |
8474 | Lisp_Object map, key, prompt; | |
8475 | int do_funcall; | |
8476 | { | |
8477 | Lisp_Object next; | |
2320865d | 8478 | |
fe5b94c5 SM |
8479 | next = access_keymap (map, key, 1, 0, 1); |
8480 | ||
8481 | /* Handle symbol with autoload definition. */ | |
8482 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8483 | && CONSP (XSYMBOL (next)->function) | |
8484 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8485 | do_autoload (XSYMBOL (next)->function, next); | |
8486 | ||
8487 | /* Handle a symbol whose function definition is a keymap | |
8488 | or an array. */ | |
8489 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8490 | && (!NILP (Farrayp (XSYMBOL (next)->function)) | |
8491 | || KEYMAPP (XSYMBOL (next)->function))) | |
8492 | next = XSYMBOL (next)->function; | |
2320865d | 8493 | |
fe5b94c5 SM |
8494 | /* If the keymap gives a function, not an |
8495 | array, then call the function with one arg and use | |
8496 | its value instead. */ | |
8497 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8498 | { | |
8499 | Lisp_Object tem; | |
8500 | tem = next; | |
8501 | ||
8502 | next = call1 (next, prompt); | |
8503 | /* If the function returned something invalid, | |
8504 | barf--don't ignore it. | |
8505 | (To ignore it safely, we would need to gcpro a bunch of | |
8506 | other variables.) */ | |
8507 | if (! (VECTORP (next) || STRINGP (next))) | |
8508 | error ("Function %s returns invalid key sequence", tem); | |
8509 | } | |
8510 | return next; | |
8511 | } | |
8512 | ||
8513 | /* Do one step of the key remapping used for function-key-map and | |
8514 | key-translation-map: | |
8515 | KEYBUF is the buffer holding the input events. | |
8516 | BUFSIZE is its maximum size. | |
8517 | FKEY is a pointer to the keyremap structure to use. | |
8518 | INPUT is the index of the last element in KEYBUF. | |
8519 | DOIT if non-zero says that the remapping can actually take place. | |
8520 | DIFF is used to return the number of keys added/removed by the remapping. | |
8521 | PARENT is the root of the keymap. | |
8522 | PROMPT is the prompt to use if the remapping happens through a function. | |
8523 | The return value is non-zero if the remapping actually took place. */ | |
8524 | ||
8525 | static int | |
24d80a06 SM |
8526 | keyremap_step (keybuf, bufsize, fkey, input, doit, diff, prompt) |
8527 | Lisp_Object *keybuf, prompt; | |
fe5b94c5 SM |
8528 | keyremap *fkey; |
8529 | int input, doit, *diff, bufsize; | |
8530 | { | |
8531 | Lisp_Object next, key; | |
8532 | ||
8533 | key = keybuf[fkey->end++]; | |
8534 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8535 | ||
8536 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8537 | map and we're in a position to do the key remapping, replace it with | |
8538 | the binding and restart with fkey->start at the end. */ | |
8539 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
8540 | { | |
8541 | int len = XFASTINT (Flength (next)); | |
8542 | int i; | |
8543 | ||
8544 | *diff = len - (fkey->end - fkey->start); | |
8545 | ||
8546 | if (input + *diff >= bufsize) | |
8547 | error ("Key sequence too long"); | |
8548 | ||
8549 | /* Shift the keys that follow fkey->end. */ | |
8550 | if (*diff < 0) | |
8551 | for (i = fkey->end; i < input; i++) | |
8552 | keybuf[i + *diff] = keybuf[i]; | |
8553 | else if (*diff > 0) | |
8554 | for (i = input - 1; i >= fkey->end; i--) | |
8555 | keybuf[i + *diff] = keybuf[i]; | |
8556 | /* Overwrite the old keys with the new ones. */ | |
8557 | for (i = 0; i < len; i++) | |
8558 | keybuf[fkey->start + i] | |
8559 | = Faref (next, make_number (i)); | |
8560 | ||
8561 | fkey->start = fkey->end += *diff; | |
24d80a06 | 8562 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8563 | |
8564 | return 1; | |
8565 | } | |
8566 | ||
8567 | fkey->map = get_keymap (next, 0, 1); | |
8568 | ||
8569 | /* If we no longer have a bound suffix, try a new position for | |
8570 | fkey->start. */ | |
8571 | if (!CONSP (fkey->map)) | |
8572 | { | |
8573 | fkey->end = ++fkey->start; | |
24d80a06 | 8574 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8575 | } |
8576 | return 0; | |
8577 | } | |
a7f26f28 | 8578 | |
df0f2ba1 | 8579 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8580 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8581 | Prompt with PROMPT. | |
284f4730 | 8582 | Return the length of the key sequence stored. |
dcc408a0 | 8583 | Return -1 if the user rejected a command menu. |
284f4730 | 8584 | |
f4255cd1 JB |
8585 | Echo starting immediately unless `prompt' is 0. |
8586 | ||
8587 | Where a key sequence ends depends on the currently active keymaps. | |
8588 | These include any minor mode keymaps active in the current buffer, | |
8589 | the current buffer's local map, and the global map. | |
8590 | ||
8591 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8592 | to see if some trailing subsequence might be the beginning of a | |
8593 | function key's sequence. If so, we try to read the whole function | |
8594 | key, and substitute its symbolic name into the key sequence. | |
8595 | ||
fbcd35bd JB |
8596 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8597 | `double-' events into similar click events, if that would make them | |
8598 | bound. We try to turn `triple-' events first into `double-' events, | |
8599 | then into clicks. | |
f4255cd1 JB |
8600 | |
8601 | If we get a mouse click in a mode line, vertical divider, or other | |
8602 | non-text area, we treat the click as if it were prefixed by the | |
8603 | symbol denoting that area - `mode-line', `vertical-line', or | |
8604 | whatever. | |
8605 | ||
8606 | If the sequence starts with a mouse click, we read the key sequence | |
8607 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8608 | |
f4255cd1 JB |
8609 | If the user switches frames in the midst of a key sequence, we put |
8610 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8611 | read_char will return it. |
8612 | ||
8613 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8614 | from the selected window's buffer. */ | |
48e416d4 | 8615 | |
284f4730 | 8616 | static int |
ce98e608 | 8617 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 8618 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
8619 | Lisp_Object *keybuf; |
8620 | int bufsize; | |
84d91fda | 8621 | Lisp_Object prompt; |
309b0fc8 | 8622 | int dont_downcase_last; |
ce98e608 | 8623 | int can_return_switch_frame; |
f571ae0d | 8624 | int fix_current_buffer; |
284f4730 | 8625 | { |
db14cfc5 | 8626 | volatile Lisp_Object from_string; |
aed13378 | 8627 | volatile int count = SPECPDL_INDEX (); |
f4255cd1 | 8628 | |
284f4730 | 8629 | /* How many keys there are in the current key sequence. */ |
8c907a56 | 8630 | volatile int t; |
284f4730 | 8631 | |
284f4730 JB |
8632 | /* The length of the echo buffer when we started reading, and |
8633 | the length of this_command_keys when we started reading. */ | |
8c907a56 GM |
8634 | volatile int echo_start; |
8635 | volatile int keys_start; | |
284f4730 JB |
8636 | |
8637 | /* The number of keymaps we're scanning right now, and the number of | |
8638 | keymaps we have allocated space for. */ | |
8c907a56 GM |
8639 | volatile int nmaps; |
8640 | volatile int nmaps_allocated = 0; | |
284f4730 | 8641 | |
284f4730 JB |
8642 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8643 | the current keymaps. */ | |
8c907a56 | 8644 | Lisp_Object *volatile defs = NULL; |
284f4730 | 8645 | |
f4255cd1 JB |
8646 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8647 | in the current keymaps, or nil where it is not a prefix. */ | |
8c907a56 | 8648 | Lisp_Object *volatile submaps = NULL; |
f4255cd1 | 8649 | |
e0dff5f6 | 8650 | /* The local map to start out with at start of key sequence. */ |
8c907a56 | 8651 | volatile Lisp_Object orig_local_map; |
e0dff5f6 | 8652 | |
30690496 DL |
8653 | /* The map from the `keymap' property to start out with at start of |
8654 | key sequence. */ | |
8c907a56 | 8655 | volatile Lisp_Object orig_keymap; |
30690496 | 8656 | |
e0dff5f6 RS |
8657 | /* 1 if we have already considered switching to the local-map property |
8658 | of the place where a mouse click occurred. */ | |
8c907a56 | 8659 | volatile int localized_local_map = 0; |
e0dff5f6 | 8660 | |
f4255cd1 JB |
8661 | /* The index in defs[] of the first keymap that has a binding for |
8662 | this key sequence. In other words, the lowest i such that | |
8663 | defs[i] is non-nil. */ | |
8c907a56 | 8664 | volatile int first_binding; |
7189cad8 | 8665 | /* Index of the first key that has no binding. |
a7f26f28 | 8666 | It is useless to try fkey.start larger than that. */ |
7189cad8 | 8667 | volatile int first_unbound; |
284f4730 | 8668 | |
f4255cd1 | 8669 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8670 | input key. |
8671 | ||
8672 | We use this to recover after recognizing a function key. Once we | |
8673 | realize that a suffix of the current key sequence is actually a | |
8674 | function key's escape sequence, we replace the suffix with the | |
8675 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8676 | contains a new and different key sequence, so the echo area, |
8677 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8678 | this situation, we set mock_input to t, set t to 0, and jump to | |
8679 | restart_sequence; the loop will read keys from keybuf up until | |
8680 | mock_input, thus rebuilding the state; and then it will resume | |
8681 | reading characters from the keyboard. */ | |
8c907a56 | 8682 | volatile int mock_input = 0; |
284f4730 | 8683 | |
253598e4 | 8684 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8685 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8686 | and fkey.map is its binding. | |
253598e4 | 8687 | |
f4255cd1 JB |
8688 | These might be > t, indicating that all function key scanning |
8689 | should hold off until t reaches them. We do this when we've just | |
8690 | recognized a function key, to avoid searching for the function | |
8691 | key's again in Vfunction_key_map. */ | |
a7f26f28 | 8692 | volatile keyremap fkey; |
284f4730 | 8693 | |
a612e298 | 8694 | /* Likewise, for key_translation_map. */ |
a7f26f28 | 8695 | volatile keyremap keytran; |
a612e298 | 8696 | |
fe5b94c5 SM |
8697 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
8698 | a key sequence, we put it off for later. | |
8699 | While we're reading, we keep the event here. */ | |
8c907a56 | 8700 | volatile Lisp_Object delayed_switch_frame; |
cd21b839 | 8701 | |
51763820 BF |
8702 | /* See the comment below... */ |
8703 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8704 | Lisp_Object first_event; |
51763820 | 8705 | #endif |
4efda7dd | 8706 | |
8c907a56 GM |
8707 | volatile Lisp_Object original_uppercase; |
8708 | volatile int original_uppercase_position = -1; | |
309b0fc8 | 8709 | |
bc536d84 | 8710 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8711 | int dummyflag = 0; |
bc536d84 | 8712 | |
3b9189f8 RS |
8713 | struct buffer *starting_buffer; |
8714 | ||
2dc00208 GM |
8715 | /* List of events for which a fake prefix key has been generated. */ |
8716 | volatile Lisp_Object fake_prefixed_keys = Qnil; | |
8717 | ||
03cee6ae | 8718 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8719 | int junk; |
03cee6ae | 8720 | #endif |
4efda7dd | 8721 | |
2dc00208 GM |
8722 | struct gcpro gcpro1; |
8723 | ||
8724 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8725 | raw_keybuf_count = 0; |
8726 | ||
4efda7dd RS |
8727 | last_nonmenu_event = Qnil; |
8728 | ||
8729 | delayed_switch_frame = Qnil; | |
ac09dc1e KL |
8730 | fkey.map = fkey.parent = current_kboard->Vlocal_function_key_map; |
8731 | keytran.map = keytran.parent = current_kboard->Vlocal_key_translation_map; | |
a7f26f28 SM |
8732 | /* If there is no translation-map, turn off scanning. */ |
8733 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; | |
8734 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
a612e298 | 8735 | |
284f4730 JB |
8736 | if (INTERACTIVE) |
8737 | { | |
84d91fda | 8738 | if (!NILP (prompt)) |
a4ef85ee | 8739 | echo_prompt (prompt); |
f2647d04 DL |
8740 | else if (cursor_in_echo_area |
8741 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8742 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8743 | /* This doesn't put in a dash if the echo buffer is empty, so |
8744 | you don't always see a dash hanging out in the minibuffer. */ | |
8745 | echo_dash (); | |
284f4730 JB |
8746 | } |
8747 | ||
f4255cd1 JB |
8748 | /* Record the initial state of the echo area and this_command_keys; |
8749 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8750 | if (INTERACTIVE) |
df0f2ba1 | 8751 | echo_start = echo_length (); |
f4255cd1 | 8752 | keys_start = this_command_key_count; |
6321824f | 8753 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8754 | |
51763820 BF |
8755 | #if defined (GOBBLE_FIRST_EVENT) |
8756 | /* This doesn't quite work, because some of the things that read_char | |
8757 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8758 | this work right. */ |
51763820 | 8759 | |
4efda7dd RS |
8760 | /* Read the first char of the sequence specially, before setting |
8761 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8762 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 8763 | &junk); |
51763820 | 8764 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 8765 | |
24a40fbb GM |
8766 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8767 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 8768 | from_string = Qnil; |
e0dff5f6 | 8769 | |
7b4aedb9 JB |
8770 | /* We jump here when the key sequence has been thoroughly changed, and |
8771 | we need to rescan it starting from the beginning. When we jump here, | |
8772 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 8773 | replay_sequence: |
7b4aedb9 | 8774 | |
3b9189f8 | 8775 | starting_buffer = current_buffer; |
7189cad8 | 8776 | first_unbound = bufsize + 1; |
3b9189f8 | 8777 | |
f4255cd1 | 8778 | /* Build our list of keymaps. |
07d2b8de JB |
8779 | If we recognize a function key and replace its escape sequence in |
8780 | keybuf with its symbol, or if the sequence starts with a mouse | |
8781 | click and we need to switch buffers, we jump back here to rebuild | |
8782 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 8783 | nmaps = 0; |
284f4730 | 8784 | |
4cbedc16 RS |
8785 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
8786 | || !NILP (Voverriding_local_map)) | |
8787 | { | |
8788 | if (3 > nmaps_allocated) | |
8789 | { | |
8790 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); | |
8791 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
8792 | nmaps_allocated = 3; | |
8793 | } | |
8794 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8795 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8796 | if (!NILP (Voverriding_local_map)) | |
8797 | submaps[nmaps++] = Voverriding_local_map; | |
8798 | } | |
8799 | else | |
8800 | { | |
4cbedc16 RS |
8801 | int nminor; |
8802 | int total; | |
8803 | Lisp_Object *maps; | |
8804 | ||
8805 | nminor = current_minor_maps (0, &maps); | |
8806 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
8807 | ||
8808 | if (total > nmaps_allocated) | |
8809 | { | |
8810 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
8811 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
8812 | nmaps_allocated = total; | |
8813 | } | |
8814 | ||
8815 | if (!NILP (orig_keymap)) | |
8816 | submaps[nmaps++] = orig_keymap; | |
8817 | ||
7d1c4866 | 8818 | bcopy (maps, (void *) (submaps + nmaps), |
4cbedc16 RS |
8819 | nminor * sizeof (submaps[0])); |
8820 | ||
8821 | nmaps += nminor; | |
8822 | ||
8823 | submaps[nmaps++] = orig_local_map; | |
8824 | } | |
8825 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
8826 | |
8827 | /* Find an accurate initial value for first_binding. */ | |
8828 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 8829 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
8830 | break; |
8831 | ||
3b9189f8 | 8832 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
8833 | t = 0; |
8834 | ||
8835 | /* These are no-ops the first time through, but if we restart, they | |
8836 | revert the echo area and this_command_keys to their original state. */ | |
8837 | this_command_key_count = keys_start; | |
df0f2ba1 | 8838 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
8839 | echo_truncate (echo_start); |
8840 | ||
cca310da JB |
8841 | /* If the best binding for the current key sequence is a keymap, or |
8842 | we may be looking at a function key's escape sequence, keep on | |
8843 | reading. */ | |
a7f26f28 SM |
8844 | while (first_binding < nmaps |
8845 | /* Keep reading as long as there's a prefix binding. */ | |
8846 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
8847 | /* Don't return in the middle of a possible function key sequence, |
8848 | if the only bindings we found were via case conversion. | |
8849 | Thus, if ESC O a has a function-key-map translation | |
8850 | and ESC o has a binding, don't return after ESC O, | |
8851 | so that we can translate ESC O plus the next character. */ | |
a7f26f28 | 8852 | : (fkey.start < t || keytran.start < t)) |
284f4730 JB |
8853 | { |
8854 | Lisp_Object key; | |
7d6de002 | 8855 | int used_mouse_menu = 0; |
284f4730 | 8856 | |
7b4aedb9 JB |
8857 | /* Where the last real key started. If we need to throw away a |
8858 | key that has expanded into more than one element of keybuf | |
8859 | (say, a mouse click on the mode line which is being treated | |
8860 | as [mode-line (mouse-...)], then we backtrack to this point | |
8861 | of keybuf. */ | |
8c907a56 | 8862 | volatile int last_real_key_start; |
7b4aedb9 | 8863 | |
0a7f1fc0 JB |
8864 | /* These variables are analogous to echo_start and keys_start; |
8865 | while those allow us to restart the entire key sequence, | |
8866 | echo_local_start and keys_local_start allow us to throw away | |
8867 | just one key. */ | |
8c907a56 | 8868 | volatile int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 8869 | |
fe5b94c5 SM |
8870 | eassert (fkey.end == t || (fkey.end > t && fkey.end <= mock_input)); |
8871 | eassert (fkey.start <= fkey.end); | |
8872 | eassert (keytran.start <= keytran.end); | |
2cf4b7b2 | 8873 | /* key-translation-map is applied *after* function-key-map. */ |
a7f26f28 | 8874 | eassert (keytran.end <= fkey.start); |
7189cad8 | 8875 | |
a7f26f28 | 8876 | if (first_unbound < fkey.start && first_unbound < keytran.start) |
7189cad8 SM |
8877 | { /* The prefix upto first_unbound has no binding and has |
8878 | no translation left to do either, so we know it's unbound. | |
8879 | If we don't stop now, we risk staying here indefinitely | |
8880 | (if the user keeps entering fkey or keytran prefixes | |
8881 | like C-c ESC ESC ESC ESC ...) */ | |
8882 | int i; | |
8883 | for (i = first_unbound + 1; i < t; i++) | |
8884 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
8885 | mock_input = t - first_unbound - 1; | |
a7f26f28 | 8886 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 8887 | fkey.map = fkey.parent; |
a7f26f28 | 8888 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 8889 | keytran.map = keytran.parent; |
7189cad8 SM |
8890 | goto replay_sequence; |
8891 | } | |
8892 | ||
284f4730 | 8893 | if (t >= bufsize) |
3fe8e9a2 | 8894 | error ("Key sequence too long"); |
284f4730 | 8895 | |
f4255cd1 JB |
8896 | if (INTERACTIVE) |
8897 | echo_local_start = echo_length (); | |
8898 | keys_local_start = this_command_key_count; | |
8899 | local_first_binding = first_binding; | |
df0f2ba1 | 8900 | |
f4255cd1 | 8901 | replay_key: |
0a7f1fc0 | 8902 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
8903 | jumped back up to replay_key; in that case, these restore the |
8904 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 8905 | loop. */ |
40932d1a | 8906 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 8907 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
8908 | this_command_key_count = keys_local_start; |
8909 | first_binding = local_first_binding; | |
8910 | ||
7e85b935 RS |
8911 | /* By default, assume each event is "real". */ |
8912 | last_real_key_start = t; | |
8913 | ||
f4255cd1 | 8914 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
8915 | if (t < mock_input) |
8916 | { | |
8917 | key = keybuf[t]; | |
8918 | add_command_key (key); | |
f2647d04 DL |
8919 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
8920 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 8921 | echo_char (key); |
284f4730 | 8922 | } |
253598e4 JB |
8923 | |
8924 | /* If not, we should actually read a character. */ | |
284f4730 JB |
8925 | else |
8926 | { | |
beecf6a1 | 8927 | { |
c5fdd383 KH |
8928 | #ifdef MULTI_KBOARD |
8929 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 8930 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 8931 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 8932 | { |
5798cf15 KH |
8933 | if (!NILP (delayed_switch_frame)) |
8934 | { | |
c5fdd383 | 8935 | interrupted_kboard->kbd_queue |
5798cf15 | 8936 | = Fcons (delayed_switch_frame, |
c5fdd383 | 8937 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
8938 | delayed_switch_frame = Qnil; |
8939 | } | |
beecf6a1 | 8940 | while (t > 0) |
c5fdd383 KH |
8941 | interrupted_kboard->kbd_queue |
8942 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
8943 | |
8944 | /* If the side queue is non-empty, ensure it begins with a | |
8945 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 8946 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 8947 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
8948 | !(EVENT_HAS_PARAMETERS (key) |
8949 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
8950 | Qswitch_frame)))) | |
df0f2ba1 KH |
8951 | { |
8952 | Lisp_Object frame; | |
8953 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 8954 | interrupted_kboard->kbd_queue |
df0f2ba1 | 8955 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 8956 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 8957 | } |
beecf6a1 | 8958 | mock_input = 0; |
24a40fbb GM |
8959 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
8960 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
beecf6a1 KH |
8961 | goto replay_sequence; |
8962 | } | |
bded54dd | 8963 | #endif |
8c907a56 GM |
8964 | key = read_char (NILP (prompt), nmaps, |
8965 | (Lisp_Object *) submaps, last_nonmenu_event, | |
beecf6a1 KH |
8966 | &used_mouse_menu); |
8967 | } | |
284f4730 | 8968 | |
dcc408a0 RS |
8969 | /* read_char returns t when it shows a menu and the user rejects it. |
8970 | Just return -1. */ | |
8971 | if (EQ (key, Qt)) | |
7d18f9ae RS |
8972 | { |
8973 | unbind_to (count, Qnil); | |
2dc00208 | 8974 | UNGCPRO; |
7d18f9ae RS |
8975 | return -1; |
8976 | } | |
dcc408a0 | 8977 | |
f4255cd1 | 8978 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
8979 | Emacs 18 handles this by returning immediately with a |
8980 | zero, so that's what we'll do. */ | |
8c18cbfb | 8981 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 8982 | { |
f4255cd1 | 8983 | t = 0; |
bc536d84 RS |
8984 | /* The Microsoft C compiler can't handle the goto that |
8985 | would go here. */ | |
309b0fc8 | 8986 | dummyflag = 1; |
bc536d84 | 8987 | break; |
cd21b839 | 8988 | } |
df0f2ba1 | 8989 | |
3cb81011 KH |
8990 | /* If the current buffer has been changed from under us, the |
8991 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 8992 | if (BUFFERP (key)) |
3cb81011 | 8993 | { |
5c12e63f | 8994 | timer_resume_idle (); |
3021d3a9 | 8995 | |
3cb81011 | 8996 | mock_input = t; |
f571ae0d RS |
8997 | /* Reset the current buffer from the selected window |
8998 | in case something changed the former and not the latter. | |
8999 | This is to be more consistent with the behavior | |
9000 | of the command_loop_1. */ | |
9001 | if (fix_current_buffer) | |
a94a4335 | 9002 | { |
788f89eb | 9003 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
9004 | Fkill_emacs (Qnil); |
9005 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
9006 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
9007 | } | |
f571ae0d | 9008 | |
24a40fbb GM |
9009 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9010 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
9011 | goto replay_sequence; |
9012 | } | |
9013 | ||
3b9189f8 RS |
9014 | /* If we have a quit that was typed in another frame, and |
9015 | quit_throw_to_read_char switched buffers, | |
9016 | replay to get the right keymap. */ | |
f4e05d97 GM |
9017 | if (INTEGERP (key) |
9018 | && XINT (key) == quit_char | |
9019 | && current_buffer != starting_buffer) | |
3b9189f8 | 9020 | { |
7d18f9ae RS |
9021 | GROW_RAW_KEYBUF; |
9022 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
9023 | keybuf[t++] = key; |
9024 | mock_input = t; | |
9025 | Vquit_flag = Qnil; | |
24a40fbb GM |
9026 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9027 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
9028 | goto replay_sequence; |
9029 | } | |
3cb81011 | 9030 | |
284f4730 | 9031 | Vquit_flag = Qnil; |
7d18f9ae RS |
9032 | |
9033 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 9034 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
9035 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
9036 | { | |
9037 | /* If we're at the beginning of a key sequence, and the caller | |
9038 | says it's okay, go ahead and return this event. If we're | |
9039 | in the midst of a key sequence, delay it until the end. */ | |
9040 | if (t > 0 || !can_return_switch_frame) | |
9041 | { | |
9042 | delayed_switch_frame = key; | |
9043 | goto replay_key; | |
9044 | } | |
9045 | } | |
9046 | ||
9047 | GROW_RAW_KEYBUF; | |
9048 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 9049 | } |
284f4730 | 9050 | |
df0f2ba1 | 9051 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
9052 | in their CHAR-ADDRESS field. For example, a click on |
9053 | the mode line is prefixed by the symbol `mode-line'. | |
9054 | ||
9055 | Furthermore, key sequences beginning with mouse clicks | |
9056 | are read using the keymaps of the buffer clicked on, not | |
9057 | the current buffer. So we may have to switch the buffer | |
9058 | here. | |
9059 | ||
9060 | When we turn one event into two events, we must make sure | |
9061 | that neither of the two looks like the original--so that, | |
9062 | if we replay the events, they won't be expanded again. | |
9063 | If not for this, such reexpansion could happen either here | |
9064 | or when user programs play with this-command-keys. */ | |
9065 | if (EVENT_HAS_PARAMETERS (key)) | |
9066 | { | |
9b8eb840 | 9067 | Lisp_Object kind; |
45de137a | 9068 | Lisp_Object string; |
cca310da | 9069 | |
9b8eb840 | 9070 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 9071 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 9072 | { |
9b8eb840 | 9073 | Lisp_Object window, posn; |
f4255cd1 | 9074 | |
9b8eb840 | 9075 | window = POSN_WINDOW (EVENT_START (key)); |
eee5863b | 9076 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 9077 | |
2cf066c3 GM |
9078 | if (CONSP (posn) |
9079 | || (!NILP (fake_prefixed_keys) | |
9080 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 9081 | { |
2cf066c3 GM |
9082 | /* We're looking a second time at an event for which |
9083 | we generated a fake prefix key. Set | |
7e85b935 RS |
9084 | last_real_key_start appropriately. */ |
9085 | if (t > 0) | |
9086 | last_real_key_start = t - 1; | |
cd21b839 | 9087 | } |
7e85b935 RS |
9088 | |
9089 | /* Key sequences beginning with mouse clicks are | |
9090 | read using the keymaps in the buffer clicked on, | |
9091 | not the current buffer. If we're at the | |
9092 | beginning of a key sequence, switch buffers. */ | |
9093 | if (last_real_key_start == 0 | |
8c18cbfb KH |
9094 | && WINDOWP (window) |
9095 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 9096 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 9097 | { |
7d18f9ae | 9098 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
9099 | keybuf[t] = key; |
9100 | mock_input = t + 1; | |
9101 | ||
9102 | /* Arrange to go back to the original buffer once we're | |
9103 | done reading the key sequence. Note that we can't | |
9104 | use save_excursion_{save,restore} here, because they | |
9105 | save point as well as the current buffer; we don't | |
9106 | want to save point, because redisplay may change it, | |
9107 | to accommodate a Fset_window_start or something. We | |
9108 | don't want to do this at the top of the function, | |
9109 | because we may get input from a subprocess which | |
9110 | wants to change the selected window and stuff (say, | |
9111 | emacsclient). */ | |
9112 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
9113 | ||
788f89eb | 9114 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 9115 | Fkill_emacs (Qnil); |
24a40fbb | 9116 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 9117 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
9118 | Qlocal_map); |
9119 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 9120 | goto replay_sequence; |
0a7f1fc0 | 9121 | } |
c60ee5e7 | 9122 | |
e0dff5f6 RS |
9123 | /* For a mouse click, get the local text-property keymap |
9124 | of the place clicked on, rather than point. */ | |
7ee32cda | 9125 | if (last_real_key_start == 0 |
7539e11f | 9126 | && CONSP (XCDR (key)) |
e0dff5f6 | 9127 | && ! localized_local_map) |
5ec75a55 | 9128 | { |
e0dff5f6 RS |
9129 | Lisp_Object map_here, start, pos; |
9130 | ||
9131 | localized_local_map = 1; | |
9132 | start = EVENT_START (key); | |
c60ee5e7 | 9133 | |
eee5863b | 9134 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
9135 | { |
9136 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
9137 | if (INTEGERP (pos) |
9138 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 | 9139 | { |
30690496 | 9140 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9141 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9142 | if (!EQ (map_here, orig_local_map)) |
9143 | { | |
9144 | orig_local_map = map_here; | |
9145 | keybuf[t] = key; | |
9146 | mock_input = t + 1; | |
5ec75a55 | 9147 | |
30690496 DL |
9148 | goto replay_sequence; |
9149 | } | |
9150 | map_here = get_local_map (XINT (pos), | |
24a40fbb | 9151 | current_buffer, Qkeymap); |
30690496 DL |
9152 | if (!EQ (map_here, orig_keymap)) |
9153 | { | |
9154 | orig_keymap = map_here; | |
9155 | keybuf[t] = key; | |
9156 | mock_input = t + 1; | |
9157 | ||
e0dff5f6 RS |
9158 | goto replay_sequence; |
9159 | } | |
9160 | } | |
9161 | } | |
9162 | } | |
9163 | ||
9164 | /* Expand mode-line and scroll-bar events into two events: | |
9165 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9166 | if (SYMBOLP (posn) |
9167 | && (NILP (fake_prefixed_keys) | |
9168 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9169 | { |
7e85b935 | 9170 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9171 | error ("Key sequence too long"); |
c60ee5e7 | 9172 | |
2dc00208 GM |
9173 | keybuf[t] = posn; |
9174 | keybuf[t + 1] = key; | |
9175 | mock_input = t + 2; | |
9176 | ||
9177 | /* Record that a fake prefix key has been generated | |
9178 | for KEY. Don't modify the event; this would | |
9179 | prevent proper action when the event is pushed | |
c7f4f573 | 9180 | back into unread-command-events. */ |
2dc00208 | 9181 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9182 | |
9183 | /* If on a mode line string with a local keymap, | |
9184 | reconsider the key sequence with that keymap. */ | |
45de137a KS |
9185 | if (string = POSN_STRING (EVENT_START (key)), |
9186 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9187 | { |
45de137a | 9188 | Lisp_Object pos, map, map2; |
7ee32cda | 9189 | |
7ee32cda GM |
9190 | pos = XCDR (string); |
9191 | string = XCAR (string); | |
52e386c2 | 9192 | if (XINT (pos) >= 0 |
d5db4077 | 9193 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9194 | { |
9195 | map = Fget_text_property (pos, Qlocal_map, string); | |
9196 | if (!NILP (map)) | |
9197 | orig_local_map = map; | |
9198 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9199 | if (!NILP (map2)) | |
9200 | orig_keymap = map2; | |
9201 | if (!NILP (map) || !NILP (map2)) | |
9202 | goto replay_sequence; | |
9203 | } | |
7ee32cda GM |
9204 | } |
9205 | ||
7e85b935 | 9206 | goto replay_key; |
5ec75a55 | 9207 | } |
45de137a KS |
9208 | else if (NILP (from_string) |
9209 | && (string = POSN_STRING (EVENT_START (key)), | |
9210 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9211 | { |
9212 | /* For a click on a string, i.e. overlay string or a | |
9213 | string displayed via the `display' property, | |
9214 | consider `local-map' and `keymap' properties of | |
9215 | that string. */ | |
45de137a | 9216 | Lisp_Object pos, map, map2; |
db14cfc5 | 9217 | |
db14cfc5 GM |
9218 | pos = XCDR (string); |
9219 | string = XCAR (string); | |
9220 | if (XINT (pos) >= 0 | |
d5db4077 | 9221 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9222 | { |
9223 | map = Fget_text_property (pos, Qlocal_map, string); | |
9224 | if (!NILP (map)) | |
9225 | orig_local_map = map; | |
9226 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9227 | if (!NILP (map2)) | |
9228 | orig_keymap = map2; | |
9229 | ||
9230 | if (!NILP (map) || !NILP (map2)) | |
9231 | { | |
9232 | from_string = string; | |
9233 | goto replay_sequence; | |
9234 | } | |
9235 | } | |
9236 | } | |
0a7f1fc0 | 9237 | } |
7539e11f | 9238 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9239 | && CONSP (EVENT_START (key)) |
7539e11f | 9240 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9241 | { |
9b8eb840 | 9242 | Lisp_Object posn; |
7e85b935 | 9243 | |
eee5863b | 9244 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9245 | /* Handle menu-bar events: |
9246 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9247 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9248 | { |
9249 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9250 | error ("Key sequence too long"); |
7e85b935 RS |
9251 | keybuf[t] = posn; |
9252 | keybuf[t+1] = key; | |
9253 | ||
9254 | /* Zap the position in key, so we know that we've | |
9255 | expanded it, and don't try to do so again. */ | |
eee5863b KS |
9256 | POSN_SET_POSN (EVENT_START (key), |
9257 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9258 | |
9259 | mock_input = t + 2; | |
9260 | goto replay_sequence; | |
9261 | } | |
8c18cbfb | 9262 | else if (CONSP (posn)) |
7e85b935 RS |
9263 | { |
9264 | /* We're looking at the second event of a | |
9265 | sequence which we expanded before. Set | |
9266 | last_real_key_start appropriately. */ | |
9267 | if (last_real_key_start == t && t > 0) | |
9268 | last_real_key_start = t - 1; | |
9269 | } | |
a6d53864 | 9270 | } |
284f4730 | 9271 | } |
f4255cd1 JB |
9272 | |
9273 | /* We have finally decided that KEY is something we might want | |
9274 | to look up. */ | |
284f4730 JB |
9275 | first_binding = (follow_key (key, |
9276 | nmaps - first_binding, | |
253598e4 | 9277 | submaps + first_binding, |
284f4730 | 9278 | defs + first_binding, |
4e50f26a | 9279 | submaps + first_binding) |
284f4730 | 9280 | + first_binding); |
0a7f1fc0 | 9281 | |
f4255cd1 | 9282 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9283 | if (first_binding < nmaps) |
9284 | /* This is needed for the following scenario: | |
9285 | event 0: a down-event that gets dropped by calling replay_key. | |
9286 | event 1: some normal prefix like C-h. | |
a7f26f28 SM |
9287 | After event 0, first_unbound is 0, after event 1 fkey.start |
9288 | and keytran.start are both 1, so when we see that C-h is bound, | |
65e0fbbf SM |
9289 | we need to update first_unbound. */ |
9290 | first_unbound = max (t + 1, first_unbound); | |
9291 | else | |
0a7f1fc0 | 9292 | { |
9b8eb840 | 9293 | Lisp_Object head; |
c60ee5e7 | 9294 | |
a7f26f28 | 9295 | /* Remember the position to put an upper bound on fkey.start. */ |
7189cad8 | 9296 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9297 | |
9b8eb840 | 9298 | head = EVENT_HEAD (key); |
24736fbc | 9299 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9300 | { |
9301 | read_key_sequence_cmd = Vprefix_help_command; | |
9302 | keybuf[t++] = key; | |
9303 | last_nonmenu_event = key; | |
bc536d84 RS |
9304 | /* The Microsoft C compiler can't handle the goto that |
9305 | would go here. */ | |
309b0fc8 | 9306 | dummyflag = 1; |
0d882d52 | 9307 | break; |
7e85b935 RS |
9308 | } |
9309 | ||
8c18cbfb | 9310 | if (SYMBOLP (head)) |
0a7f1fc0 | 9311 | { |
9b8eb840 KH |
9312 | Lisp_Object breakdown; |
9313 | int modifiers; | |
0a7f1fc0 | 9314 | |
9b8eb840 | 9315 | breakdown = parse_modifiers (head); |
7539e11f | 9316 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9317 | /* Attempt to reduce an unbound mouse event to a simpler |
9318 | event that is bound: | |
9319 | Drags reduce to clicks. | |
9320 | Double-clicks reduce to clicks. | |
9321 | Triple-clicks reduce to double-clicks, then to clicks. | |
9322 | Down-clicks are eliminated. | |
9323 | Double-downs reduce to downs, then are eliminated. | |
9324 | Triple-downs reduce to double-downs, then to downs, | |
9325 | then are eliminated. */ | |
9326 | if (modifiers & (down_modifier | drag_modifier | |
9327 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9328 | { |
559f9d04 RS |
9329 | while (modifiers & (down_modifier | drag_modifier |
9330 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9331 | { |
9332 | Lisp_Object new_head, new_click; | |
9333 | if (modifiers & triple_modifier) | |
9334 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9335 | else if (modifiers & double_modifier) |
9336 | modifiers &= ~double_modifier; | |
9337 | else if (modifiers & drag_modifier) | |
9338 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9339 | else |
9340 | { | |
9341 | /* Dispose of this `down' event by simply jumping | |
9342 | back to replay_key, to get another event. | |
9343 | ||
9344 | Note that if this event came from mock input, | |
9345 | then just jumping back to replay_key will just | |
9346 | hand it to us again. So we have to wipe out any | |
9347 | mock input. | |
9348 | ||
9349 | We could delete keybuf[t] and shift everything | |
9350 | after that to the left by one spot, but we'd also | |
9351 | have to fix up any variable that points into | |
9352 | keybuf, and shifting isn't really necessary | |
9353 | anyway. | |
9354 | ||
9355 | Adding prefixes for non-textual mouse clicks | |
9356 | creates two characters of mock input, and both | |
9357 | must be thrown away. If we're only looking at | |
9358 | the prefix now, we can just jump back to | |
9359 | replay_key. On the other hand, if we've already | |
9360 | processed the prefix, and now the actual click | |
9361 | itself is giving us trouble, then we've lost the | |
9362 | state of the keymaps we want to backtrack to, and | |
9363 | we need to replay the whole sequence to rebuild | |
9364 | it. | |
9365 | ||
9366 | Beyond that, only function key expansion could | |
9367 | create more than two keys, but that should never | |
9368 | generate mouse events, so it's okay to zero | |
9369 | mock_input in that case too. | |
9370 | ||
65e0fbbf SM |
9371 | FIXME: The above paragraph seems just plain |
9372 | wrong, if you consider things like | |
9373 | xterm-mouse-mode. -stef | |
9374 | ||
559f9d04 | 9375 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9376 | |
9377 | /* If mock_input > t + 1, the above simplification | |
9378 | will actually end up dropping keys on the floor. | |
9379 | This is probably OK for now, but even | |
9380 | if mock_input <= t + 1, we need to adjust fkey | |
9381 | and keytran. | |
9382 | Typical case [header-line down-mouse-N]: | |
9383 | mock_input = 2, t = 1, fkey.end = 1, | |
9384 | last_real_key_start = 0. */ | |
9385 | if (fkey.end > last_real_key_start) | |
9386 | { | |
9387 | fkey.end = fkey.start | |
9388 | = min (last_real_key_start, fkey.start); | |
9389 | fkey.map = fkey.parent; | |
9390 | if (keytran.end > last_real_key_start) | |
9391 | { | |
9392 | keytran.end = keytran.start | |
9393 | = min (last_real_key_start, keytran.start); | |
9394 | keytran.map = keytran.parent; | |
9395 | } | |
9396 | } | |
559f9d04 RS |
9397 | if (t == last_real_key_start) |
9398 | { | |
9399 | mock_input = 0; | |
9400 | goto replay_key; | |
9401 | } | |
9402 | else | |
9403 | { | |
9404 | mock_input = last_real_key_start; | |
9405 | goto replay_sequence; | |
9406 | } | |
9407 | } | |
9408 | ||
27203ead | 9409 | new_head |
7539e11f | 9410 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9411 | new_click |
9412 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9413 | |
9414 | /* Look for a binding for this new key. follow_key | |
9415 | promises that it didn't munge submaps the | |
9416 | last time we called it, since key was unbound. */ | |
27203ead RS |
9417 | first_binding |
9418 | = (follow_key (new_click, | |
9419 | nmaps - local_first_binding, | |
9420 | submaps + local_first_binding, | |
9421 | defs + local_first_binding, | |
4e50f26a | 9422 | submaps + local_first_binding) |
27203ead | 9423 | + local_first_binding); |
fbcd35bd JB |
9424 | |
9425 | /* If that click is bound, go for it. */ | |
9426 | if (first_binding < nmaps) | |
9427 | { | |
9428 | key = new_click; | |
9429 | break; | |
9430 | } | |
9431 | /* Otherwise, we'll leave key set to the drag event. */ | |
9432 | } | |
0a7f1fc0 JB |
9433 | } |
9434 | } | |
9435 | } | |
9436 | ||
284f4730 | 9437 | keybuf[t++] = key; |
7d6de002 RS |
9438 | /* Normally, last_nonmenu_event gets the previous key we read. |
9439 | But when a mouse popup menu is being used, | |
9440 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9441 | event that preceded the first level of menu. */ | |
9442 | if (!used_mouse_menu) | |
9443 | last_nonmenu_event = key; | |
284f4730 | 9444 | |
6321824f RS |
9445 | /* Record what part of this_command_keys is the current key sequence. */ |
9446 | this_single_command_key_start = this_command_key_count - t; | |
9447 | ||
65e0fbbf SM |
9448 | if (first_binding < nmaps && NILP (submaps[first_binding])) |
9449 | /* There is a binding and it's not a prefix. | |
9450 | There is thus no function-key in this sequence. | |
9451 | Moving fkey.start is important in this case to allow keytran.start | |
9452 | to go over the sequence before we return (since we keep the | |
9453 | invariant that keytran.end <= fkey.start). */ | |
9454 | { | |
a7f26f28 | 9455 | if (fkey.start < t) |
24d80a06 | 9456 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9457 | } |
9458 | else | |
9459 | /* If the sequence is unbound, see if we can hang a function key | |
9460 | off the end of it. */ | |
fe5b94c5 SM |
9461 | /* Continue scan from fkey.end until we find a bound suffix. */ |
9462 | while (fkey.end < t) | |
a612e298 | 9463 | { |
fe5b94c5 SM |
9464 | struct gcpro gcpro1, gcpro2, gcpro3; |
9465 | int done, diff; | |
9466 | ||
9467 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); | |
9468 | done = keyremap_step (keybuf, bufsize, &fkey, | |
9469 | max (t, mock_input), | |
9470 | /* If there's a binding (i.e. | |
9471 | first_binding >= nmaps) we don't want | |
9472 | to apply this function-key-mapping. */ | |
9473 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 9474 | &diff, prompt); |
fe5b94c5 SM |
9475 | UNGCPRO; |
9476 | if (done) | |
a612e298 | 9477 | { |
fe5b94c5 | 9478 | mock_input = diff + max (t, mock_input); |
a612e298 RS |
9479 | goto replay_sequence; |
9480 | } | |
fe5b94c5 | 9481 | } |
a612e298 | 9482 | |
fe5b94c5 SM |
9483 | /* Look for this sequence in key-translation-map. |
9484 | Scan from keytran.end until we find a bound suffix. */ | |
9485 | while (keytran.end < fkey.start) | |
9486 | { | |
9487 | struct gcpro gcpro1, gcpro2, gcpro3; | |
9488 | int done, diff; | |
a612e298 | 9489 | |
fe5b94c5 SM |
9490 | GCPRO3 (fkey.map, keytran.map, delayed_switch_frame); |
9491 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), | |
24d80a06 | 9492 | 1, &diff, prompt); |
fe5b94c5 SM |
9493 | UNGCPRO; |
9494 | if (done) | |
9495 | { | |
9496 | mock_input = diff + max (t, mock_input); | |
9497 | /* Adjust the function-key-map counters. */ | |
9498 | fkey.end += diff; | |
9499 | fkey.start += diff; | |
2320865d | 9500 | |
fe5b94c5 SM |
9501 | goto replay_sequence; |
9502 | } | |
9503 | } | |
4e50f26a RS |
9504 | |
9505 | /* If KEY is not defined in any of the keymaps, | |
9506 | and cannot be part of a function key or translation, | |
9507 | and is an upper case letter | |
9508 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9509 | if (first_binding >= nmaps |
a7f26f28 | 9510 | && fkey.start >= t && keytran.start >= t |
8c18cbfb | 9511 | && INTEGERP (key) |
4e50f26a | 9512 | && ((((XINT (key) & 0x3ffff) |
301738ed | 9513 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
9514 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
9515 | || (XINT (key) & shift_modifier))) | |
9516 | { | |
569871d2 | 9517 | Lisp_Object new_key; |
569871d2 | 9518 | |
309b0fc8 RS |
9519 | original_uppercase = key; |
9520 | original_uppercase_position = t - 1; | |
9521 | ||
831f35a2 | 9522 | if (XINT (key) & shift_modifier) |
569871d2 | 9523 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9524 | else |
569871d2 RS |
9525 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
9526 | | (XINT (key) & ~0x3ffff))); | |
9527 | ||
3fe8e9a2 RS |
9528 | /* We have to do this unconditionally, regardless of whether |
9529 | the lower-case char is defined in the keymaps, because they | |
9530 | might get translated through function-key-map. */ | |
9531 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9532 | mock_input = max (t, mock_input); |
3fe8e9a2 RS |
9533 | |
9534 | goto replay_sequence; | |
4e50f26a | 9535 | } |
ef8fd672 RS |
9536 | /* If KEY is not defined in any of the keymaps, |
9537 | and cannot be part of a function key or translation, | |
9538 | and is a shifted function key, | |
9539 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9540 | if (first_binding >= nmaps |
a7f26f28 | 9541 | && fkey.start >= t && keytran.start >= t |
ef8fd672 RS |
9542 | && SYMBOLP (key)) |
9543 | { | |
9544 | Lisp_Object breakdown; | |
9545 | int modifiers; | |
9546 | ||
9547 | breakdown = parse_modifiers (key); | |
7539e11f | 9548 | modifiers = XINT (XCAR (XCDR (breakdown))); |
ef8fd672 RS |
9549 | if (modifiers & shift_modifier) |
9550 | { | |
569871d2 | 9551 | Lisp_Object new_key; |
3fe8e9a2 RS |
9552 | |
9553 | original_uppercase = key; | |
9554 | original_uppercase_position = t - 1; | |
ef8fd672 | 9555 | |
569871d2 RS |
9556 | modifiers &= ~shift_modifier; |
9557 | new_key = apply_modifiers (modifiers, | |
7539e11f | 9558 | XCAR (breakdown)); |
569871d2 | 9559 | |
3fe8e9a2 | 9560 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9561 | mock_input = max (t, mock_input); |
f1871a7d RS |
9562 | fkey.start = fkey.end = KEYMAPP (fkey.map) ? 0 : bufsize + 1; |
9563 | keytran.start = keytran.end = KEYMAPP (keytran.map) ? 0 : bufsize + 1; | |
3fe8e9a2 RS |
9564 | |
9565 | goto replay_sequence; | |
ef8fd672 RS |
9566 | } |
9567 | } | |
284f4730 JB |
9568 | } |
9569 | ||
309b0fc8 | 9570 | if (!dummyflag) |
bc536d84 RS |
9571 | read_key_sequence_cmd = (first_binding < nmaps |
9572 | ? defs[first_binding] | |
9573 | : Qnil); | |
284f4730 | 9574 | |
cd21b839 | 9575 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9576 | unbind_to (count, Qnil); |
07f76a14 | 9577 | |
3fe8e9a2 RS |
9578 | /* Don't downcase the last character if the caller says don't. |
9579 | Don't downcase it if the result is undefined, either. */ | |
9580 | if ((dont_downcase_last || first_binding >= nmaps) | |
9581 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
9582 | keybuf[t - 1] = original_uppercase; |
9583 | ||
07f76a14 JB |
9584 | /* Occasionally we fabricate events, perhaps by expanding something |
9585 | according to function-key-map, or by adding a prefix symbol to a | |
9586 | mouse click in the scroll bar or modeline. In this cases, return | |
9587 | the entire generated key sequence, even if we hit an unbound | |
9588 | prefix or a definition before the end. This means that you will | |
9589 | be able to push back the event properly, and also means that | |
9590 | read-key-sequence will always return a logical unit. | |
9591 | ||
9592 | Better ideas? */ | |
cca310da JB |
9593 | for (; t < mock_input; t++) |
9594 | { | |
f2647d04 DL |
9595 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9596 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9597 | echo_char (keybuf[t]); |
cca310da JB |
9598 | add_command_key (keybuf[t]); |
9599 | } | |
07f76a14 | 9600 | |
c60ee5e7 | 9601 | |
7d18f9ae | 9602 | |
2dc00208 | 9603 | UNGCPRO; |
284f4730 JB |
9604 | return t; |
9605 | } | |
9606 | ||
d5eecefb | 9607 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9608 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9609 | The sequence is sufficient to specify a non-prefix command in the | |
9610 | current local and global maps. | |
9611 | ||
9612 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9613 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9614 | as a continuation of the previous key. | |
9615 | ||
9616 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9617 | convert the last event to lower case. (Normally any upper case event | |
9618 | is converted to lower case if the original event is undefined and the lower | |
9619 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9620 | a key sequence to be defined. | |
9621 | ||
9622 | A C-g typed while in this function is treated like any other character, | |
9623 | and `quit-flag' is not set. | |
9624 | ||
9625 | If the key sequence starts with a mouse click, then the sequence is read | |
9626 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9627 | of the selected window as normal. | |
9628 | ||
9629 | `read-key-sequence' drops unbound button-down events, since you normally | |
9630 | only care about the click or drag events which follow them. If a drag | |
9631 | or multi-click event is unbound, but the corresponding click event would | |
9632 | be bound, `read-key-sequence' turns the event into a click event at the | |
9633 | drag's starting position. This means that you don't have to distinguish | |
9634 | between click and drag, double, or triple events unless you want to. | |
9635 | ||
9636 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9637 | lines separating windows, and scroll bars with imaginary keys | |
9638 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9639 | ||
9640 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9641 | function will process a switch-frame event if the user switches frames | |
9642 | before typing anything. If the user switches frames in the middle of a | |
9643 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9644 | is nil, then the event will be put off until after the current key sequence. | |
9645 | ||
9646 | `read-key-sequence' checks `function-key-map' for function key | |
9647 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9648 | `function-key-map' for more details. | |
9649 | ||
9650 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9651 | that this key sequence is being read by something that will | |
9652 | read commands one after another. It should be nil if the caller | |
9653 | will read just one key sequence. */) | |
d5eecefb RS |
9654 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
9655 | command_loop) | |
309b0fc8 | 9656 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9657 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
9658 | { |
9659 | Lisp_Object keybuf[30]; | |
9660 | register int i; | |
03cee6ae | 9661 | struct gcpro gcpro1; |
aed13378 | 9662 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9663 | |
9664 | if (!NILP (prompt)) | |
b7826503 | 9665 | CHECK_STRING (prompt); |
284f4730 JB |
9666 | QUIT; |
9667 | ||
d5eecefb RS |
9668 | specbind (Qinput_method_exit_on_first_char, |
9669 | (NILP (command_loop) ? Qt : Qnil)); | |
9670 | specbind (Qinput_method_use_echo_area, | |
9671 | (NILP (command_loop) ? Qt : Qnil)); | |
9672 | ||
284f4730 JB |
9673 | bzero (keybuf, sizeof keybuf); |
9674 | GCPRO1 (keybuf[0]); | |
9675 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9676 | ||
daa37602 | 9677 | if (NILP (continue_echo)) |
6321824f RS |
9678 | { |
9679 | this_command_key_count = 0; | |
63020c46 | 9680 | this_command_key_count_reset = 0; |
6321824f RS |
9681 | this_single_command_key_start = 0; |
9682 | } | |
c0a58692 | 9683 | |
d0c48478 | 9684 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9685 | if (display_hourglass_p) |
9686 | cancel_hourglass (); | |
d0c48478 GM |
9687 | #endif |
9688 | ||
309b0fc8 | 9689 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 9690 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 9691 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 9692 | |
ae18aa3b | 9693 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 9694 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 9695 | for code reading keys in a loop, like an input method. */ |
d0c48478 | 9696 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9697 | if (display_hourglass_p) |
9698 | start_hourglass (); | |
ae18aa3b | 9699 | #endif |
d0c48478 GM |
9700 | #endif |
9701 | ||
dcc408a0 RS |
9702 | if (i == -1) |
9703 | { | |
9704 | Vquit_flag = Qt; | |
9705 | QUIT; | |
9706 | } | |
284f4730 | 9707 | UNGCPRO; |
d5eecefb | 9708 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 9709 | } |
e39da3d7 RS |
9710 | |
9711 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 9712 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 PJ |
9713 | doc: /* Like `read-key-sequence' but always return a vector. */) |
9714 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, | |
9715 | command_loop) | |
e39da3d7 | 9716 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 9717 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
9718 | { |
9719 | Lisp_Object keybuf[30]; | |
9720 | register int i; | |
03cee6ae | 9721 | struct gcpro gcpro1; |
aed13378 | 9722 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
9723 | |
9724 | if (!NILP (prompt)) | |
b7826503 | 9725 | CHECK_STRING (prompt); |
e39da3d7 RS |
9726 | QUIT; |
9727 | ||
d5eecefb RS |
9728 | specbind (Qinput_method_exit_on_first_char, |
9729 | (NILP (command_loop) ? Qt : Qnil)); | |
9730 | specbind (Qinput_method_use_echo_area, | |
9731 | (NILP (command_loop) ? Qt : Qnil)); | |
9732 | ||
e39da3d7 RS |
9733 | bzero (keybuf, sizeof keybuf); |
9734 | GCPRO1 (keybuf[0]); | |
9735 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
9736 | ||
9737 | if (NILP (continue_echo)) | |
9738 | { | |
9739 | this_command_key_count = 0; | |
63020c46 | 9740 | this_command_key_count_reset = 0; |
e39da3d7 RS |
9741 | this_single_command_key_start = 0; |
9742 | } | |
9743 | ||
d0c48478 | 9744 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9745 | if (display_hourglass_p) |
9746 | cancel_hourglass (); | |
d0c48478 GM |
9747 | #endif |
9748 | ||
e39da3d7 RS |
9749 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
9750 | prompt, ! NILP (dont_downcase_last), | |
9751 | ! NILP (can_return_switch_frame), 0); | |
9752 | ||
d0c48478 | 9753 | #ifdef HAVE_X_WINDOWS |
526a058f GM |
9754 | if (display_hourglass_p) |
9755 | start_hourglass (); | |
d0c48478 GM |
9756 | #endif |
9757 | ||
e39da3d7 RS |
9758 | if (i == -1) |
9759 | { | |
9760 | Vquit_flag = Qt; | |
9761 | QUIT; | |
9762 | } | |
9763 | UNGCPRO; | |
d5eecefb | 9764 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 9765 | } |
284f4730 | 9766 | \f |
158f7532 | 9767 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
9768 | doc: /* Execute CMD as an editor command. |
9769 | CMD must be a symbol that satisfies the `commandp' predicate. | |
9770 | Optional second arg RECORD-FLAG non-nil | |
9771 | means unconditionally put this command in `command-history'. | |
9772 | Otherwise, that is done only if an arg is read using the minibuffer. | |
9773 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
9774 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
9775 | The argument SPECIAL, if non-nil, means that this command is executing | |
9776 | a special event, so ignore the prefix argument and don't clear it. */) | |
158f7532 RS |
9777 | (cmd, record_flag, keys, special) |
9778 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
9779 | { |
9780 | register Lisp_Object final; | |
9781 | register Lisp_Object tem; | |
9782 | Lisp_Object prefixarg; | |
9783 | struct backtrace backtrace; | |
9784 | extern int debug_on_next_call; | |
9785 | ||
284f4730 JB |
9786 | debug_on_next_call = 0; |
9787 | ||
158f7532 RS |
9788 | if (NILP (special)) |
9789 | { | |
9790 | prefixarg = current_kboard->Vprefix_arg; | |
9791 | Vcurrent_prefix_arg = prefixarg; | |
9792 | current_kboard->Vprefix_arg = Qnil; | |
9793 | } | |
9794 | else | |
9795 | prefixarg = Qnil; | |
9796 | ||
8c18cbfb | 9797 | if (SYMBOLP (cmd)) |
284f4730 JB |
9798 | { |
9799 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 9800 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 9801 | { |
971e4c98 | 9802 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 9803 | if (!NILP (tem)) |
971e4c98 | 9804 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 9805 | } |
284f4730 JB |
9806 | } |
9807 | ||
01e26217 | 9808 | while (1) |
284f4730 | 9809 | { |
ffd56f97 | 9810 | final = Findirect_function (cmd); |
284f4730 JB |
9811 | |
9812 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
9813 | { |
9814 | struct gcpro gcpro1, gcpro2; | |
9815 | ||
9816 | GCPRO2 (cmd, prefixarg); | |
9817 | do_autoload (final, cmd); | |
9818 | UNGCPRO; | |
9819 | } | |
284f4730 JB |
9820 | else |
9821 | break; | |
9822 | } | |
9823 | ||
8c18cbfb | 9824 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
9825 | { |
9826 | /* If requested, place the macro in the command history. For | |
9827 | other sorts of commands, call-interactively takes care of | |
9828 | this. */ | |
e57d8fd8 | 9829 | if (!NILP (record_flag)) |
f4385381 RS |
9830 | { |
9831 | Vcommand_history | |
9832 | = Fcons (Fcons (Qexecute_kbd_macro, | |
9833 | Fcons (final, Fcons (prefixarg, Qnil))), | |
9834 | Vcommand_history); | |
9835 | ||
9836 | /* Don't keep command history around forever. */ | |
9837 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
9838 | { | |
9839 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
9840 | if (CONSP (tem)) | |
f3fbd155 | 9841 | XSETCDR (tem, Qnil); |
f4385381 RS |
9842 | } |
9843 | } | |
284f4730 | 9844 | |
caa06051 | 9845 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 9846 | } |
f4385381 | 9847 | |
8c18cbfb | 9848 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
9849 | { |
9850 | backtrace.next = backtrace_list; | |
9851 | backtrace_list = &backtrace; | |
9852 | backtrace.function = &Qcall_interactively; | |
9853 | backtrace.args = &cmd; | |
9854 | backtrace.nargs = 1; | |
9855 | backtrace.evalargs = 0; | |
080e18b1 | 9856 | backtrace.debug_on_exit = 0; |
284f4730 | 9857 | |
e57d8fd8 | 9858 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
9859 | |
9860 | backtrace_list = backtrace.next; | |
9861 | return tem; | |
9862 | } | |
9863 | return Qnil; | |
9864 | } | |
c970a760 GM |
9865 | |
9866 | ||
284f4730 | 9867 | \f |
284f4730 | 9868 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 PJ |
9869 | 1, 1, "P", |
9870 | doc: /* Read function name, then read its arguments and call it. */) | |
9871 | (prefixarg) | |
284f4730 JB |
9872 | Lisp_Object prefixarg; |
9873 | { | |
9874 | Lisp_Object function; | |
9875 | char buf[40]; | |
2e1a49ad SM |
9876 | int saved_last_point_position; |
9877 | Lisp_Object saved_keys, saved_last_point_position_buffer; | |
5434fce6 | 9878 | Lisp_Object bindings, value; |
2e1a49ad | 9879 | struct gcpro gcpro1, gcpro2, gcpro3; |
a25e44b2 JD |
9880 | #ifdef HAVE_X_WINDOWS |
9881 | /* The call to Fcompleting_read wil start and cancel the hourglass, | |
9882 | but if the hourglass was already scheduled, this means that no | |
9883 | hourglass will be shown for the actual M-x command itself. | |
9884 | So we restart it if it is already scheduled. Note that checking | |
9885 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
9886 | just scheduled to be shown. */ | |
9887 | int hstarted = hourglass_started (); | |
9888 | #endif | |
284f4730 | 9889 | |
b0f2a7bf KH |
9890 | saved_keys = Fvector (this_command_key_count, |
9891 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
9892 | saved_last_point_position_buffer = last_point_position_buffer; |
9893 | saved_last_point_position = last_point_position; | |
284f4730 | 9894 | buf[0] = 0; |
2e1a49ad | 9895 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 JB |
9896 | |
9897 | if (EQ (prefixarg, Qminus)) | |
9898 | strcpy (buf, "- "); | |
7539e11f | 9899 | else if (CONSP (prefixarg) && XINT (XCAR (prefixarg)) == 4) |
284f4730 | 9900 | strcpy (buf, "C-u "); |
7539e11f | 9901 | else if (CONSP (prefixarg) && INTEGERP (XCAR (prefixarg))) |
cea5d0d4 | 9902 | sprintf (buf, "%ld ", (long) XINT (XCAR (prefixarg))); |
8c18cbfb | 9903 | else if (INTEGERP (prefixarg)) |
cea5d0d4 | 9904 | sprintf (buf, "%ld ", (long) XINT (prefixarg)); |
284f4730 JB |
9905 | |
9906 | /* This isn't strictly correct if execute-extended-command | |
9907 | is bound to anything else. Perhaps it should use | |
9908 | this_command_keys? */ | |
9909 | strcat (buf, "M-x "); | |
9910 | ||
9911 | /* Prompt with buf, and then read a string, completing from and | |
9912 | restricting to the set of all defined commands. Don't provide | |
51763820 | 9913 | any initial input. Save the command read on the extended-command |
03b4122a | 9914 | history list. */ |
284f4730 JB |
9915 | function = Fcompleting_read (build_string (buf), |
9916 | Vobarray, Qcommandp, | |
4328577a KH |
9917 | Qt, Qnil, Qextended_command_history, Qnil, |
9918 | Qnil); | |
284f4730 | 9919 | |
a25e44b2 JD |
9920 | #ifdef HAVE_X_WINDOWS |
9921 | if (hstarted) start_hourglass (); | |
9922 | #endif | |
9923 | ||
d5db4077 | 9924 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
9925 | error ("No command name given"); |
9926 | ||
1113d9db JB |
9927 | /* Set this_command_keys to the concatenation of saved_keys and |
9928 | function, followed by a RET. */ | |
284f4730 | 9929 | { |
b0f2a7bf | 9930 | Lisp_Object *keys; |
284f4730 | 9931 | int i; |
284f4730 | 9932 | |
1113d9db | 9933 | this_command_key_count = 0; |
63020c46 | 9934 | this_command_key_count_reset = 0; |
6321824f | 9935 | this_single_command_key_start = 0; |
1113d9db | 9936 | |
b0f2a7bf KH |
9937 | keys = XVECTOR (saved_keys)->contents; |
9938 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
9939 | add_command_key (keys[i]); | |
1113d9db | 9940 | |
1b049b51 | 9941 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 9942 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 9943 | |
301738ed | 9944 | add_command_key (make_number ('\015')); |
284f4730 JB |
9945 | } |
9946 | ||
2e1a49ad SM |
9947 | last_point_position = saved_last_point_position; |
9948 | last_point_position_buffer = saved_last_point_position_buffer; | |
9949 | ||
284f4730 JB |
9950 | UNGCPRO; |
9951 | ||
0a7f1fc0 | 9952 | function = Fintern (function, Qnil); |
d8bcf58e | 9953 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
9954 | Vthis_command = function; |
9955 | real_this_command = function; | |
284f4730 | 9956 | |
6526ab49 RS |
9957 | /* If enabled, show which key runs this command. */ |
9958 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 9959 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 9960 | && SYMBOLP (function)) |
5434fce6 | 9961 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 9962 | Qt, Qnil, Qnil); |
5434fce6 RS |
9963 | else |
9964 | bindings = Qnil; | |
6526ab49 | 9965 | |
5434fce6 RS |
9966 | value = Qnil; |
9967 | GCPRO2 (bindings, value); | |
9968 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 9969 | |
5434fce6 | 9970 | /* If the command has a key binding, print it now. */ |
3ababa60 | 9971 | if (!NILP (bindings) |
ee112567 KH |
9972 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
9973 | Qmouse_movement))) | |
5434fce6 RS |
9974 | { |
9975 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 9976 | int delay_time; |
985f9f66 | 9977 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
9978 | /* This command displayed something in the echo area; |
9979 | so wait a few seconds, then display our suggestion message. */ | |
9980 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
9981 | ? XINT (Vsuggest_key_bindings) : 2); | |
9982 | else | |
9983 | /* This command left the echo area empty, | |
9984 | so display our message immediately. */ | |
9985 | delay_time = 0; | |
9986 | ||
9987 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 9988 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 9989 | { |
5434fce6 RS |
9990 | Lisp_Object binding; |
9991 | char *newmessage; | |
985f9f66 | 9992 | int message_p = push_message (); |
331379bf | 9993 | int count = SPECPDL_INDEX (); |
5434fce6 | 9994 | |
65efd7da | 9995 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 9996 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
9997 | |
9998 | newmessage | |
d5db4077 KR |
9999 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
10000 | + SBYTES (binding) | |
5434fce6 | 10001 | + 100); |
3ababa60 | 10002 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
10003 | SDATA (SYMBOL_NAME (function)), |
10004 | SDATA (binding)); | |
301738ed RS |
10005 | message2_nolog (newmessage, |
10006 | strlen (newmessage), | |
10007 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
10008 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
10009 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
10010 | Qnil, Qnil)) |
10011 | && message_p) | |
10012 | restore_message (); | |
10013 | ||
c970a760 | 10014 | unbind_to (count, Qnil); |
6526ab49 RS |
10015 | } |
10016 | } | |
10017 | ||
5434fce6 | 10018 | RETURN_UNGCPRO (value); |
284f4730 | 10019 | } |
6526ab49 | 10020 | |
284f4730 | 10021 | \f |
d9d4c147 | 10022 | /* Return nonzero if input events are pending. */ |
284f4730 | 10023 | |
dfcf069d | 10024 | int |
284f4730 JB |
10025 | detect_input_pending () |
10026 | { | |
10027 | if (!input_pending) | |
d9d4c147 KH |
10028 | get_input_pending (&input_pending, 0); |
10029 | ||
10030 | return input_pending; | |
10031 | } | |
10032 | ||
a2d5fca0 JD |
10033 | /* Return nonzero if input events other than mouse movements are |
10034 | pending. */ | |
10035 | ||
10036 | int | |
10037 | detect_input_pending_ignore_squeezables () | |
10038 | { | |
10039 | if (!input_pending) | |
10040 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
10041 | ||
10042 | return input_pending; | |
10043 | } | |
10044 | ||
b1878f45 | 10045 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 10046 | |
dfcf069d | 10047 | int |
87dd9b9b RS |
10048 | detect_input_pending_run_timers (do_display) |
10049 | int do_display; | |
d9d4c147 | 10050 | { |
87dd9b9b RS |
10051 | int old_timers_run = timers_run; |
10052 | ||
d9d4c147 | 10053 | if (!input_pending) |
a2d5fca0 | 10054 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 10055 | |
87dd9b9b | 10056 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 10057 | { |
3007ebfb | 10058 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
10059 | /* The following fixes a bug when using lazy-lock with |
10060 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
10061 | from an idle timer function. The symptom of the bug is that | |
10062 | the cursor sometimes doesn't become visible until the next X | |
10063 | event is processed. --gerd. */ | |
fa971ac3 KL |
10064 | { |
10065 | Lisp_Object tail, frame; | |
10066 | FOR_EACH_FRAME (tail, frame) | |
10067 | if (FRAME_RIF (XFRAME (frame))) | |
10068 | FRAME_RIF (XFRAME (frame))->flush_display (XFRAME (frame)); | |
10069 | } | |
7ee32cda | 10070 | } |
87dd9b9b | 10071 | |
284f4730 JB |
10072 | return input_pending; |
10073 | } | |
10074 | ||
ffd56f97 JB |
10075 | /* This is called in some cases before a possible quit. |
10076 | It cases the next call to detect_input_pending to recompute input_pending. | |
10077 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
10078 | |
10079 | void | |
ffd56f97 JB |
10080 | clear_input_pending () |
10081 | { | |
10082 | input_pending = 0; | |
10083 | } | |
10084 | ||
b1878f45 | 10085 | /* Return nonzero if there are pending requeued events. |
d64b707c | 10086 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 10087 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
10088 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
10089 | to do in that case. It isn't trivial. */ | |
10090 | ||
dfcf069d | 10091 | int |
b1878f45 RS |
10092 | requeued_events_pending_p () |
10093 | { | |
10094 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
10095 | } | |
10096 | ||
10097 | ||
284f4730 | 10098 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
10099 | doc: /* Return t if command input is currently available with no wait. |
10100 | Actually, the value is nil only if we can be sure that no input is available; | |
10101 | if there is a doubt, the value is t. */) | |
4707d2d0 | 10102 | () |
284f4730 | 10103 | { |
24597608 | 10104 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
10105 | return (Qt); |
10106 | ||
a2d5fca0 JD |
10107 | get_input_pending (&input_pending, |
10108 | READABLE_EVENTS_DO_TIMERS_NOW | |
10109 | | READABLE_EVENTS_FILTER_EVENTS); | |
d9d4c147 | 10110 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
10111 | } |
10112 | ||
10113 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
4707d2d0 PJ |
10114 | doc: /* Return vector of last 100 events, not counting those from keyboard macros. */) |
10115 | () | |
284f4730 | 10116 | { |
5160df46 | 10117 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
10118 | Lisp_Object val; |
10119 | ||
10120 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 10121 | return Fvector (total_keys, keys); |
284f4730 JB |
10122 | else |
10123 | { | |
5160df46 JB |
10124 | val = Fvector (NUM_RECENT_KEYS, keys); |
10125 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
10126 | XVECTOR (val)->contents, |
10127 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 10128 | bcopy (keys, |
284f4730 JB |
10129 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
10130 | recent_keys_index * sizeof (Lisp_Object)); | |
10131 | return val; | |
10132 | } | |
10133 | } | |
10134 | ||
10135 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 10136 | doc: /* Return the key sequence that invoked this command. |
92501652 | 10137 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 10138 | the last key sequence that has been read. |
4707d2d0 PJ |
10139 | The value is a string or a vector. */) |
10140 | () | |
284f4730 | 10141 | { |
86e5706b RS |
10142 | return make_event_array (this_command_key_count, |
10143 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
10144 | } |
10145 | ||
e39da3d7 | 10146 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
10147 | doc: /* Return the key sequence that invoked this command, as a vector. |
10148 | However, if the command has called `read-key-sequence', it returns | |
4052e7bb | 10149 | the last key sequence that has been read. */) |
4707d2d0 | 10150 | () |
e39da3d7 RS |
10151 | { |
10152 | return Fvector (this_command_key_count, | |
10153 | XVECTOR (this_command_keys)->contents); | |
10154 | } | |
10155 | ||
6321824f RS |
10156 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10157 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10158 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10159 | More generally, it returns the last key sequence read, either by |
10160 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10161 | Unlike `this-command-keys', this function's value |
10162 | does not include prefix arguments. | |
10163 | The value is always a vector. */) | |
10164 | () | |
6321824f | 10165 | { |
e39da3d7 RS |
10166 | return Fvector (this_command_key_count |
10167 | - this_single_command_key_start, | |
10168 | (XVECTOR (this_command_keys)->contents | |
10169 | + this_single_command_key_start)); | |
6321824f RS |
10170 | } |
10171 | ||
7d18f9ae RS |
10172 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10173 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10174 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10175 | More generally, it returns the last key sequence read, either by |
10176 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10177 | Unlike `this-single-command-keys', this function's value |
10178 | shows the events before all translations (except for input methods). | |
10179 | The value is always a vector. */) | |
10180 | () | |
7d18f9ae RS |
10181 | { |
10182 | return Fvector (raw_keybuf_count, | |
10183 | (XVECTOR (raw_keybuf)->contents)); | |
10184 | } | |
10185 | ||
71918b75 | 10186 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10187 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10188 | doc: /* Make the unread events replace the last command and echo. |
10189 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10190 | |
10191 | `universal-argument-other-key' rereads the event just typed. | |
10192 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10193 | The translated event has to replace the real events, |
10194 | both in the value of (this-command-keys) and in echoing. | |
10195 | To achieve this, `universal-argument-other-key' calls | |
10196 | `reset-this-command-lengths', which discards the record of reading | |
10197 | these events the first time. */) | |
4707d2d0 | 10198 | () |
71918b75 | 10199 | { |
22b94eeb RS |
10200 | this_command_key_count = before_command_key_count; |
10201 | if (this_command_key_count < this_single_command_key_start) | |
10202 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10203 | |
22b94eeb RS |
10204 | echo_truncate (before_command_echo_length); |
10205 | ||
63020c46 RS |
10206 | /* Cause whatever we put into unread-command-events |
10207 | to echo as if it were being freshly read from the keyboard. */ | |
10208 | this_command_key_count_reset = 1; | |
10209 | ||
6e5742a0 | 10210 | return Qnil; |
71918b75 RS |
10211 | } |
10212 | ||
82e6e5af | 10213 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10214 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10215 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10216 | Also clear the record of the last 100 events, unless optional arg |
10217 | KEEP-RECORD is non-nil. */) | |
10218 | (keep_record) | |
10219 | Lisp_Object keep_record; | |
82e6e5af | 10220 | { |
fb0dde6c | 10221 | int i; |
c60ee5e7 | 10222 | |
82e6e5af | 10223 | this_command_key_count = 0; |
63020c46 | 10224 | this_command_key_count_reset = 0; |
fb0dde6c | 10225 | |
ab1959fc KS |
10226 | if (NILP (keep_record)) |
10227 | { | |
10228 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10229 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10230 | total_keys = 0; | |
10231 | recent_keys_index = 0; | |
10232 | } | |
82e6e5af RS |
10233 | return Qnil; |
10234 | } | |
10235 | ||
284f4730 | 10236 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 PJ |
10237 | doc: /* Return the current depth in recursive edits. */) |
10238 | () | |
284f4730 JB |
10239 | { |
10240 | Lisp_Object temp; | |
bb9e9bed | 10241 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10242 | return temp; |
10243 | } | |
10244 | ||
10245 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10246 | "FOpen dribble file: ", |
10247 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10248 | If FILE is nil, close any open dribble file. */) | |
10249 | (file) | |
284f4730 JB |
10250 | Lisp_Object file; |
10251 | { | |
6cb52def | 10252 | if (dribble) |
284f4730 | 10253 | { |
6cb52def KH |
10254 | fclose (dribble); |
10255 | dribble = 0; | |
284f4730 | 10256 | } |
6cb52def | 10257 | if (!NILP (file)) |
284f4730 JB |
10258 | { |
10259 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10260 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10261 | if (dribble == 0) |
10262 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10263 | } |
10264 | return Qnil; | |
10265 | } | |
10266 | ||
10267 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10268 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10269 | Also end any kbd macro being defined. */) |
4707d2d0 | 10270 | () |
284f4730 | 10271 | { |
2b17d5ed KS |
10272 | if (!NILP (current_kboard->defining_kbd_macro)) |
10273 | { | |
10274 | /* Discard the last command from the macro. */ | |
10275 | Fcancel_kbd_macro_events (); | |
10276 | end_kbd_macro (); | |
10277 | } | |
10278 | ||
284f4730 JB |
10279 | update_mode_lines++; |
10280 | ||
24597608 | 10281 | Vunread_command_events = Qnil; |
86e5706b | 10282 | unread_command_char = -1; |
284f4730 JB |
10283 | |
10284 | discard_tty_input (); | |
10285 | ||
7ee32cda | 10286 | kbd_fetch_ptr = kbd_store_ptr; |
284f4730 JB |
10287 | input_pending = 0; |
10288 | ||
10289 | return Qnil; | |
10290 | } | |
10291 | \f | |
10292 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10293 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10294 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10295 | control, run a subshell instead. | |
10296 | ||
10297 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10298 | to be read as terminal input by Emacs's parent, after suspension. | |
10299 | ||
10300 | Before suspending, run the normal hook `suspend-hook'. | |
10301 | After resumption run the normal hook `suspend-resume-hook'. | |
10302 | ||
10303 | Some operating systems cannot stop the Emacs process and resume it later. | |
10304 | On such systems, Emacs starts a subshell instead of suspending. */) | |
10305 | (stuffstring) | |
284f4730 JB |
10306 | Lisp_Object stuffstring; |
10307 | { | |
aed13378 | 10308 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10309 | int old_height, old_width; |
10310 | int width, height; | |
03cee6ae | 10311 | struct gcpro gcpro1; |
284f4730 | 10312 | |
9628b887 | 10313 | if (tty_list && tty_list->next) |
4a933ef8 | 10314 | error ("There are other tty frames open; close them before suspending Emacs"); |
3b7fbceb | 10315 | |
284f4730 | 10316 | if (!NILP (stuffstring)) |
b7826503 | 10317 | CHECK_STRING (stuffstring); |
284f4730 | 10318 | |
1e95ed28 JB |
10319 | /* Run the functions in suspend-hook. */ |
10320 | if (!NILP (Vrun_hooks)) | |
10321 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10322 | |
b7d2ebbf | 10323 | GCPRO1 (stuffstring); |
0b0d3e0b | 10324 | get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height); |
28d440ab | 10325 | reset_all_sys_modes (); |
284f4730 JB |
10326 | /* sys_suspend can get an error if it tries to fork a subshell |
10327 | and the system resources aren't available for that. */ | |
017bbc62 KL |
10328 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_all_sys_modes, |
10329 | Qnil); | |
284f4730 | 10330 | stuff_buffered_input (stuffstring); |
8026024c KH |
10331 | if (cannot_suspend) |
10332 | sys_subshell (); | |
10333 | else | |
10334 | sys_suspend (); | |
284f4730 JB |
10335 | unbind_to (count, Qnil); |
10336 | ||
10337 | /* Check if terminal/window size has changed. | |
10338 | Note that this is not useful when we are running directly | |
10339 | with a window system; but suspend should be disabled in that case. */ | |
0b0d3e0b | 10340 | get_tty_size (fileno (CURTTY ()->input), &width, &height); |
284f4730 | 10341 | if (width != old_width || height != old_height) |
788f89eb | 10342 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10343 | |
1e95ed28 | 10344 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10345 | if (!NILP (Vrun_hooks)) |
10346 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10347 | |
284f4730 JB |
10348 | UNGCPRO; |
10349 | return Qnil; | |
10350 | } | |
10351 | ||
10352 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10353 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10354 | |
07a59269 | 10355 | void |
284f4730 JB |
10356 | stuff_buffered_input (stuffstring) |
10357 | Lisp_Object stuffstring; | |
10358 | { | |
0c1c1b93 | 10359 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10360 | register unsigned char *p; |
612b78ef | 10361 | |
8c18cbfb | 10362 | if (STRINGP (stuffstring)) |
284f4730 JB |
10363 | { |
10364 | register int count; | |
10365 | ||
d5db4077 KR |
10366 | p = SDATA (stuffstring); |
10367 | count = SBYTES (stuffstring); | |
284f4730 JB |
10368 | while (count-- > 0) |
10369 | stuff_char (*p++); | |
10370 | stuff_char ('\n'); | |
10371 | } | |
c60ee5e7 | 10372 | |
284f4730 | 10373 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10374 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10375 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10376 | |
0c1c1b93 RS |
10377 | rms: we should stuff everything back into the kboard |
10378 | it came from. */ | |
beecf6a1 | 10379 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10380 | { |
c60ee5e7 | 10381 | |
beecf6a1 KH |
10382 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10383 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10384 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10385 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10386 | |
d92f48d3 | 10387 | clear_event (kbd_fetch_ptr); |
284f4730 | 10388 | } |
c60ee5e7 | 10389 | |
284f4730 | 10390 | input_pending = 0; |
0c1c1b93 | 10391 | #endif /* SIGTSTP */ |
284f4730 JB |
10392 | } |
10393 | \f | |
dfcf069d | 10394 | void |
ffd56f97 JB |
10395 | set_waiting_for_input (time_to_clear) |
10396 | EMACS_TIME *time_to_clear; | |
284f4730 | 10397 | { |
ffd56f97 | 10398 | input_available_clear_time = time_to_clear; |
284f4730 | 10399 | |
114a8b8c | 10400 | /* Tell handle_interrupt to throw back to read_char, */ |
284f4730 JB |
10401 | waiting_for_input = 1; |
10402 | ||
114a8b8c | 10403 | /* If handle_interrupt was called before and buffered a C-g, |
284f4730 JB |
10404 | make it run again now, to avoid timing error. */ |
10405 | if (!NILP (Vquit_flag)) | |
10406 | quit_throw_to_read_char (); | |
284f4730 JB |
10407 | } |
10408 | ||
07a59269 | 10409 | void |
284f4730 JB |
10410 | clear_waiting_for_input () |
10411 | { | |
114a8b8c | 10412 | /* Tell handle_interrupt not to throw back to read_char, */ |
284f4730 | 10413 | waiting_for_input = 0; |
ffd56f97 | 10414 | input_available_clear_time = 0; |
284f4730 JB |
10415 | } |
10416 | ||
da8e1115 | 10417 | /* The SIGINT handler. |
114a8b8c | 10418 | |
e72cf5ee KL |
10419 | If we have a frame on the controlling tty, we assume that the |
10420 | SIGINT was generated by C-g, so we call handle_interrupt. | |
10421 | Otherwise, the handler kills Emacs. */ | |
284f4730 | 10422 | |
14e40288 | 10423 | static SIGTYPE |
91c049d4 RS |
10424 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
10425 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 10426 | { |
284f4730 JB |
10427 | /* Must preserve main program's value of errno. */ |
10428 | int old_errno = errno; | |
7e59217d | 10429 | struct device *device; |
284f4730 | 10430 | |
5970a8cb | 10431 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7b00d185 KL |
10432 | /* USG systems forget handlers when they are used; |
10433 | must reestablish each time */ | |
10434 | signal (SIGINT, interrupt_signal); | |
10435 | signal (SIGQUIT, interrupt_signal); | |
284f4730 JB |
10436 | #endif /* USG */ |
10437 | ||
e72cf5ee KL |
10438 | SIGNAL_THREAD_CHECK (signalnum); |
10439 | ||
b6660415 | 10440 | /* See if we have an active display on our controlling terminal. */ |
7e59217d KL |
10441 | device = get_named_tty (NULL); |
10442 | if (!device) | |
3224dac1 | 10443 | { |
4ca927b4 KL |
10444 | /* If there are no frames there, let's pretend that we are a |
10445 | well-behaving UN*X program and quit. */ | |
301f31cf | 10446 | fatal_error_signal (SIGTERM); |
3224dac1 | 10447 | } |
4ca927b4 KL |
10448 | else |
10449 | { | |
10450 | /* Otherwise, the SIGINT was probably generated by C-g. */ | |
3b7fbceb | 10451 | |
4ca927b4 KL |
10452 | /* Set internal_last_event_frame to the top frame of the |
10453 | controlling tty, if we have a frame there. We disable the | |
10454 | interrupt key on secondary ttys, so the SIGINT must have come | |
10455 | from the controlling tty. */ | |
7e59217d | 10456 | internal_last_event_frame = device->display_info.tty->top_frame; |
4ca927b4 KL |
10457 | |
10458 | handle_interrupt (); | |
4ca927b4 | 10459 | } |
114a8b8c KL |
10460 | |
10461 | errno = old_errno; | |
10462 | } | |
10463 | ||
da8e1115 | 10464 | /* This routine is called at interrupt level in response to C-g. |
3b7fbceb | 10465 | |
da8e1115 KL |
10466 | It is called from the SIGINT handler or kbd_buffer_store_event. |
10467 | ||
10468 | If `waiting_for_input' is non zero, then unless `echoing' is | |
10469 | nonzero, immediately throw back to read_char. | |
10470 | ||
10471 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes | |
10472 | eval to throw, when it gets a chance. If quit-flag is already | |
10473 | non-nil, it stops the job right away. */ | |
114a8b8c | 10474 | |
114a8b8c KL |
10475 | static void |
10476 | handle_interrupt () | |
10477 | { | |
3b7fbceb | 10478 | char c; |
114a8b8c | 10479 | |
284f4730 JB |
10480 | cancel_echoing (); |
10481 | ||
3224dac1 | 10482 | /* XXX This code needs to be revised for multi-tty support. */ |
31e4e97b | 10483 | if (!NILP (Vquit_flag) |
e72cf5ee | 10484 | #ifndef MSDOS |
7e59217d | 10485 | && get_named_tty (NULL) |
e72cf5ee KL |
10486 | #endif |
10487 | ) | |
284f4730 | 10488 | { |
31e4e97b EZ |
10489 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10490 | another SIGINT, it might be harmful due to non-reentrancy | |
10491 | in I/O functions. */ | |
10492 | sigblock (sigmask (SIGINT)); | |
10493 | ||
284f4730 | 10494 | fflush (stdout); |
28d440ab | 10495 | reset_all_sys_modes (); |
31e4e97b | 10496 | |
284f4730 JB |
10497 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10498 | /* | |
10499 | * On systems which can suspend the current process and return to the original | |
10500 | * shell, this command causes the user to end up back at the shell. | |
10501 | * The "Auto-save" and "Abort" questions are not asked until | |
10502 | * the user elects to return to emacs, at which point he can save the current | |
10503 | * job and either dump core or continue. | |
10504 | */ | |
10505 | sys_suspend (); | |
10506 | #else | |
10507 | #ifdef VMS | |
10508 | if (sys_suspend () == -1) | |
10509 | { | |
10510 | printf ("Not running as a subprocess;\n"); | |
10511 | printf ("you can continue or abort.\n"); | |
10512 | } | |
10513 | #else /* not VMS */ | |
10514 | /* Perhaps should really fork an inferior shell? | |
10515 | But that would not provide any way to get back | |
10516 | to the original shell, ever. */ | |
10517 | printf ("No support for stopping a process on this operating system;\n"); | |
10518 | printf ("you can continue or abort.\n"); | |
10519 | #endif /* not VMS */ | |
10520 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
10521 | #ifdef MSDOS |
10522 | /* We must remain inside the screen area when the internal terminal | |
10523 | is used. Note that [Enter] is not echoed by dos. */ | |
10524 | cursor_to (0, 0); | |
10525 | #endif | |
118d6ca9 RS |
10526 | /* It doesn't work to autosave while GC is in progress; |
10527 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10528 | if (!gc_in_progress) | |
9fd7d808 | 10529 | { |
118d6ca9 RS |
10530 | printf ("Auto-save? (y or n) "); |
10531 | fflush (stdout); | |
10532 | if (((c = getchar ()) & ~040) == 'Y') | |
10533 | { | |
10534 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10535 | #ifdef MSDOS |
118d6ca9 | 10536 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10537 | #else /* not MSDOS */ |
118d6ca9 | 10538 | printf ("Auto-save done\n"); |
80e4aa30 | 10539 | #endif /* not MSDOS */ |
118d6ca9 RS |
10540 | } |
10541 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10542 | } |
c60ee5e7 | 10543 | else |
118d6ca9 RS |
10544 | { |
10545 | /* During GC, it must be safe to reenable quitting again. */ | |
10546 | Vinhibit_quit = Qnil; | |
10547 | #ifdef MSDOS | |
10548 | printf ("\r\n"); | |
10549 | #endif /* not MSDOS */ | |
10550 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10551 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10552 | fflush (stdout); | |
10553 | } | |
10554 | ||
80e4aa30 RS |
10555 | #ifdef MSDOS |
10556 | printf ("\r\nAbort? (y or n) "); | |
10557 | #else /* not MSDOS */ | |
284f4730 JB |
10558 | #ifdef VMS |
10559 | printf ("Abort (and enter debugger)? (y or n) "); | |
10560 | #else /* not VMS */ | |
10561 | printf ("Abort (and dump core)? (y or n) "); | |
10562 | #endif /* not VMS */ | |
80e4aa30 | 10563 | #endif /* not MSDOS */ |
284f4730 JB |
10564 | fflush (stdout); |
10565 | if (((c = getchar ()) & ~040) == 'Y') | |
10566 | abort (); | |
10567 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10568 | #ifdef MSDOS |
10569 | printf ("\r\nContinuing...\r\n"); | |
10570 | #else /* not MSDOS */ | |
284f4730 | 10571 | printf ("Continuing...\n"); |
80e4aa30 | 10572 | #endif /* not MSDOS */ |
284f4730 | 10573 | fflush (stdout); |
28d440ab | 10574 | init_all_sys_modes (); |
31e4e97b | 10575 | sigfree (); |
284f4730 JB |
10576 | } |
10577 | else | |
10578 | { | |
10579 | /* If executing a function that wants to be interrupted out of | |
10580 | and the user has not deferred quitting by binding `inhibit-quit' | |
10581 | then quit right away. */ | |
10582 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10583 | { | |
e39da3d7 RS |
10584 | struct gl_state_s saved; |
10585 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10586 | ||
284f4730 JB |
10587 | immediate_quit = 0; |
10588 | sigfree (); | |
e39da3d7 RS |
10589 | saved = gl_state; |
10590 | GCPRO4 (saved.object, saved.global_code, | |
10591 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10592 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
10593 | gl_state = saved; |
10594 | UNGCPRO; | |
284f4730 JB |
10595 | } |
10596 | else | |
10597 | /* Else request quit when it's safe */ | |
10598 | Vquit_flag = Qt; | |
10599 | } | |
10600 | ||
10601 | if (waiting_for_input && !echoing) | |
4ca927b4 | 10602 | quit_throw_to_read_char (); |
284f4730 JB |
10603 | } |
10604 | ||
10605 | /* Handle a C-g by making read_char return C-g. */ | |
10606 | ||
07a59269 | 10607 | void |
284f4730 JB |
10608 | quit_throw_to_read_char () |
10609 | { | |
284f4730 JB |
10610 | sigfree (); |
10611 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10612 | clear_waiting_for_input (); |
284f4730 JB |
10613 | input_pending = 0; |
10614 | ||
24597608 | 10615 | Vunread_command_events = Qnil; |
86e5706b | 10616 | unread_command_char = -1; |
284f4730 | 10617 | |
087feab3 RS |
10618 | #if 0 /* Currently, sit_for is called from read_char without turning |
10619 | off polling. And that can call set_waiting_for_input. | |
10620 | It seems to be harmless. */ | |
e6b01c14 JB |
10621 | #ifdef POLL_FOR_INPUT |
10622 | /* May be > 1 if in recursive minibuffer. */ | |
10623 | if (poll_suppress_count == 0) | |
10624 | abort (); | |
10625 | #endif | |
087feab3 | 10626 | #endif |
4c52b668 | 10627 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10628 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10629 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
827c686c | 10630 | 0, 0); |
e6b01c14 | 10631 | |
284f4730 JB |
10632 | _longjmp (getcjmp, 1); |
10633 | } | |
10634 | \f | |
10635 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
4707d2d0 PJ |
10636 | doc: /* Set mode of reading keyboard input. |
10637 | First arg INTERRUPT non-nil means use input interrupts; | |
10638 | nil means use CBREAK mode. | |
10639 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
10640 | (no effect except in CBREAK mode). | |
10641 | Third arg META t means accept 8-bit input (for a Meta key). | |
10642 | META nil means ignore the top bit, on the assumption it is parity. | |
10643 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
10644 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
10645 | See also `current-input-mode'. */) | |
10646 | (interrupt, flow, meta, quit) | |
284f4730 JB |
10647 | Lisp_Object interrupt, flow, meta, quit; |
10648 | { | |
428a555e KL |
10649 | /* XXX This function needs to be revised for multi-device support. |
10650 | Currently it compiles fine, but its semantics are wrong. It sets | |
10651 | global parameters (e.g. interrupt_input) based on only the | |
10652 | current frame's device. */ | |
3b7fbceb | 10653 | |
284f4730 | 10654 | if (!NILP (quit) |
8c18cbfb | 10655 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
10656 | error ("set-input-mode: QUIT must be an ASCII character"); |
10657 | ||
10658 | #ifdef POLL_FOR_INPUT | |
10659 | stop_polling (); | |
10660 | #endif | |
284f4730 | 10661 | |
07de30b9 | 10662 | #ifndef DOS_NT |
1fb8c4ad KL |
10663 | if (FRAME_TERMCAP_P (XFRAME (selected_frame))) |
10664 | /* this causes startup screen to be restored and messes with the mouse */ | |
10665 | reset_sys_modes (CURTTY ()); | |
2ee250ec RS |
10666 | #endif |
10667 | ||
284f4730 JB |
10668 | #ifdef SIGIO |
10669 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
7e59217d | 10670 | if (FRAME_DEVICE (SELECTED_FRAME ())->read_socket_hook) |
9a0f60bb KH |
10671 | { |
10672 | /* When using X, don't give the user a real choice, | |
10673 | because we haven't implemented the mechanisms to support it. */ | |
10674 | #ifdef NO_SOCK_SIGIO | |
10675 | interrupt_input = 0; | |
10676 | #else /* not NO_SOCK_SIGIO */ | |
10677 | interrupt_input = 1; | |
284f4730 | 10678 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
10679 | } |
10680 | else | |
284f4730 JB |
10681 | interrupt_input = !NILP (interrupt); |
10682 | #else /* not SIGIO */ | |
10683 | interrupt_input = 0; | |
10684 | #endif /* not SIGIO */ | |
9a0f60bb | 10685 | |
284f4730 JB |
10686 | /* Our VMS input only works by interrupts, as of now. */ |
10687 | #ifdef VMS | |
10688 | interrupt_input = 1; | |
10689 | #endif | |
9a0f60bb | 10690 | |
daf01701 KL |
10691 | if (FRAME_TERMCAP_P (XFRAME (selected_frame))) |
10692 | { | |
10693 | struct tty_display_info *tty = CURTTY (); | |
10694 | tty->flow_control = !NILP (flow); | |
10695 | if (NILP (meta)) | |
10696 | tty->meta_key = 0; | |
10697 | else if (EQ (meta, Qt)) | |
10698 | tty->meta_key = 1; | |
10699 | else | |
10700 | tty->meta_key = 2; | |
10701 | } | |
3b7fbceb | 10702 | |
2246281f | 10703 | if (!NILP (quit)) |
284f4730 | 10704 | /* Don't let this value be out of range. */ |
2246281f | 10705 | quit_char = XINT (quit) & (NILP (meta) ? 0177 : 0377); |
284f4730 | 10706 | |
07de30b9 | 10707 | #ifndef DOS_NT |
1fb8c4ad KL |
10708 | if (FRAME_TERMCAP_P (XFRAME (selected_frame))) |
10709 | init_sys_modes (CURTTY ()); | |
2ee250ec | 10710 | #endif |
34f04431 RS |
10711 | |
10712 | #ifdef POLL_FOR_INPUT | |
10713 | poll_suppress_count = 1; | |
10714 | start_polling (); | |
10715 | #endif | |
284f4730 JB |
10716 | return Qnil; |
10717 | } | |
80645119 JB |
10718 | |
10719 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
10720 | doc: /* Return information about the way Emacs currently reads keyboard input. |
10721 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
10722 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
10723 | nil, Emacs is using CBREAK mode. | |
10724 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
10725 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
10726 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
10727 | META nil means ignoring the top bit, on the assumption it is parity. | |
10728 | META is neither t nor nil if accepting 8-bit input and using | |
10729 | all 8 bits as the character code. | |
10730 | QUIT is the character Emacs currently uses to quit. | |
10731 | The elements of this list correspond to the arguments of | |
10732 | `set-input-mode'. */) | |
10733 | () | |
80645119 JB |
10734 | { |
10735 | Lisp_Object val[4]; | |
daf01701 | 10736 | struct frame *sf = XFRAME (selected_frame); |
80645119 JB |
10737 | |
10738 | val[0] = interrupt_input ? Qt : Qnil; | |
daf01701 KL |
10739 | if (FRAME_TERMCAP_P (sf)) |
10740 | { | |
10741 | val[1] = FRAME_TTY (sf)->flow_control ? Qt : Qnil; | |
c3b4957f KL |
10742 | val[2] = (FRAME_TTY (sf)->meta_key == 2 |
10743 | ? make_number (0) | |
10744 | : (CURTTY ()->meta_key == 1 ? Qt : Qnil)); | |
daf01701 KL |
10745 | } |
10746 | else | |
10747 | { | |
10748 | val[1] = Qnil; | |
10749 | val[2] = Qt; | |
10750 | } | |
bb9e9bed | 10751 | XSETFASTINT (val[3], quit_char); |
80645119 | 10752 | |
bf673a7a | 10753 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
10754 | } |
10755 | ||
a25f766a | 10756 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
10757 | doc: /* Return position information for pixel coordinates X and Y. |
10758 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 10759 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
10760 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
10761 | edge of the window. | |
ec026e7a KS |
10762 | |
10763 | The return value is similar to a mouse click position: | |
10764 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
10765 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
10766 | The `posn-' functions access elements of such lists. */) | |
a25f766a KS |
10767 | (x, y, frame_or_window, whole) |
10768 | Lisp_Object x, y, frame_or_window, whole; | |
ec026e7a | 10769 | { |
f4a5a485 SM |
10770 | CHECK_NATNUM (x); |
10771 | CHECK_NATNUM (y); | |
10772 | ||
ec026e7a KS |
10773 | if (NILP (frame_or_window)) |
10774 | frame_or_window = selected_window; | |
10775 | ||
10776 | if (WINDOWP (frame_or_window)) | |
10777 | { | |
10778 | struct window *w; | |
10779 | ||
10780 | CHECK_LIVE_WINDOW (frame_or_window); | |
10781 | ||
10782 | w = XWINDOW (frame_or_window); | |
6507c4c7 KS |
10783 | XSETINT (x, (XINT (x) |
10784 | + WINDOW_LEFT_EDGE_X (w) | |
a25f766a KS |
10785 | + (NILP (whole) |
10786 | ? window_box_left_offset (w, TEXT_AREA) | |
6507c4c7 | 10787 | : 0))); |
ec026e7a KS |
10788 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
10789 | frame_or_window = w->frame; | |
10790 | } | |
10791 | ||
10792 | CHECK_LIVE_FRAME (frame_or_window); | |
10793 | ||
10794 | return make_lispy_position (XFRAME (frame_or_window), &x, &y, 0); | |
10795 | } | |
10796 | ||
10797 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
10798 | doc: /* Return position information for buffer POS in WINDOW. | |
10799 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
10800 | ||
10801 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 10802 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
10803 | a mouse click at the upper left corner of the glyph corresponding |
10804 | to the given buffer position: | |
10805 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
10806 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 10807 | The `posn-' functions access elements of such lists. */) |
ec026e7a KS |
10808 | (pos, window) |
10809 | Lisp_Object pos, window; | |
10810 | { | |
10811 | Lisp_Object tem; | |
10812 | ||
6507c4c7 KS |
10813 | if (NILP (window)) |
10814 | window = selected_window; | |
10815 | ||
ec026e7a KS |
10816 | tem = Fpos_visible_in_window_p (pos, window, Qt); |
10817 | if (!NILP (tem)) | |
6507c4c7 KS |
10818 | { |
10819 | Lisp_Object x = XCAR (tem); | |
10820 | Lisp_Object y = XCAR (XCDR (tem)); | |
10821 | ||
10822 | /* Point invisible due to hscrolling? */ | |
10823 | if (XINT (x) < 0) | |
10824 | return Qnil; | |
10825 | tem = Fposn_at_x_y (x, y, window, Qnil); | |
10826 | } | |
10827 | ||
ec026e7a KS |
10828 | return tem; |
10829 | } | |
10830 | ||
284f4730 | 10831 | \f |
6c6083a9 | 10832 | /* |
c5fdd383 | 10833 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
10834 | */ |
10835 | void | |
c5fdd383 KH |
10836 | init_kboard (kb) |
10837 | KBOARD *kb; | |
6c6083a9 | 10838 | { |
217258d5 | 10839 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 10840 | kb->Vlast_command = Qnil; |
75045dcb | 10841 | kb->Vreal_last_command = Qnil; |
2e478293 | 10842 | kb->Vkeyboard_translate_table = Qnil; |
d8bcf58e | 10843 | kb->Vprefix_arg = Qnil; |
75045dcb | 10844 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
10845 | kb->kbd_queue = Qnil; |
10846 | kb->kbd_queue_has_data = 0; | |
10847 | kb->immediate_echo = 0; | |
678e9d18 | 10848 | kb->echo_string = Qnil; |
c5fdd383 KH |
10849 | kb->echo_after_prompt = -1; |
10850 | kb->kbd_macro_buffer = 0; | |
10851 | kb->kbd_macro_bufsize = 0; | |
10852 | kb->defining_kbd_macro = Qnil; | |
10853 | kb->Vlast_kbd_macro = Qnil; | |
10854 | kb->reference_count = 0; | |
7c97ffdc | 10855 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 10856 | kb->system_key_syms = Qnil; |
ac09dc1e KL |
10857 | kb->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
10858 | Fset_keymap_parent (kb->Vlocal_function_key_map, Vfunction_key_map); | |
10859 | kb->Vlocal_key_translation_map = Fmake_sparse_keymap (Qnil); | |
10860 | Fset_keymap_parent (kb->Vlocal_key_translation_map, Vkey_translation_map); | |
9ba47203 | 10861 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
10862 | } |
10863 | ||
10864 | /* | |
c5fdd383 | 10865 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 10866 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
10867 | * it a second time. |
10868 | */ | |
e50b8090 | 10869 | static void |
c5fdd383 KH |
10870 | wipe_kboard (kb) |
10871 | KBOARD *kb; | |
6c6083a9 | 10872 | { |
c5fdd383 KH |
10873 | if (kb->kbd_macro_buffer) |
10874 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
10875 | } |
10876 | ||
e50b8090 | 10877 | #ifdef MULTI_KBOARD |
a122a38e GM |
10878 | |
10879 | /* Free KB and memory referenced from it. */ | |
10880 | ||
e50b8090 KH |
10881 | void |
10882 | delete_kboard (kb) | |
a122a38e | 10883 | KBOARD *kb; |
e50b8090 KH |
10884 | { |
10885 | KBOARD **kbp; | |
c60ee5e7 | 10886 | |
e50b8090 KH |
10887 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
10888 | if (*kbp == NULL) | |
10889 | abort (); | |
10890 | *kbp = kb->next_kboard; | |
a122a38e GM |
10891 | |
10892 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
10893 | if (kb == current_kboard |
10894 | && FRAMEP (selected_frame) | |
10895 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 10896 | { |
7e59217d | 10897 | current_kboard = XFRAME (selected_frame)->device->kboard; |
a122a38e GM |
10898 | if (current_kboard == kb) |
10899 | abort (); | |
10900 | } | |
c60ee5e7 | 10901 | |
e50b8090 KH |
10902 | wipe_kboard (kb); |
10903 | xfree (kb); | |
10904 | } | |
a122a38e GM |
10905 | |
10906 | #endif /* MULTI_KBOARD */ | |
e50b8090 | 10907 | |
dfcf069d | 10908 | void |
284f4730 JB |
10909 | init_keyboard () |
10910 | { | |
284f4730 JB |
10911 | /* This is correct before outermost invocation of the editor loop */ |
10912 | command_loop_level = -1; | |
10913 | immediate_quit = 0; | |
10914 | quit_char = Ctl ('g'); | |
24597608 | 10915 | Vunread_command_events = Qnil; |
86e5706b | 10916 | unread_command_char = -1; |
87dd9b9b | 10917 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 10918 | total_keys = 0; |
9deb415a | 10919 | recent_keys_index = 0; |
beecf6a1 KH |
10920 | kbd_fetch_ptr = kbd_buffer; |
10921 | kbd_store_ptr = kbd_buffer; | |
2eb6bfbe | 10922 | #ifdef HAVE_MOUSE |
a9d77f1f | 10923 | do_mouse_tracking = Qnil; |
2eb6bfbe | 10924 | #endif |
284f4730 JB |
10925 | input_pending = 0; |
10926 | ||
4c52b668 KH |
10927 | /* This means that command_loop_1 won't try to select anything the first |
10928 | time through. */ | |
10929 | internal_last_event_frame = Qnil; | |
10930 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 10931 | |
c5fdd383 | 10932 | #ifdef MULTI_KBOARD |
aaca43a1 | 10933 | current_kboard = initial_kboard; |
6c6083a9 | 10934 | #endif |
aaca43a1 | 10935 | wipe_kboard (current_kboard); |
c5fdd383 | 10936 | init_kboard (current_kboard); |
07d2b8de | 10937 | |
7b00d185 | 10938 | if (!noninteractive) |
284f4730 | 10939 | { |
3224dac1 KL |
10940 | /* Before multi-tty support, these handlers used to be installed |
10941 | only if the current session was a tty session. Now an Emacs | |
10942 | session may have multiple display types, so we always handle | |
10943 | SIGINT. There is special code in interrupt_signal to exit | |
4ca927b4 KL |
10944 | Emacs on SIGINT when there are no termcap frames on the |
10945 | controlling terminal. */ | |
284f4730 | 10946 | signal (SIGINT, interrupt_signal); |
cb5df6ae | 10947 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
10948 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
10949 | SIGQUIT and we can't tell which one it will give us. */ | |
10950 | signal (SIGQUIT, interrupt_signal); | |
10951 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 10952 | } |
284f4730 JB |
10953 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
10954 | #ifdef SIGIO | |
7a80a6f6 RS |
10955 | if (!noninteractive) |
10956 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 10957 | #endif /* SIGIO */ |
284f4730 JB |
10958 | |
10959 | /* Use interrupt input by default, if it works and noninterrupt input | |
10960 | has deficiencies. */ | |
10961 | ||
10962 | #ifdef INTERRUPT_INPUT | |
10963 | interrupt_input = 1; | |
10964 | #else | |
10965 | interrupt_input = 0; | |
10966 | #endif | |
10967 | ||
10968 | /* Our VMS input only works by interrupts, as of now. */ | |
10969 | #ifdef VMS | |
10970 | interrupt_input = 1; | |
10971 | #endif | |
10972 | ||
10973 | sigfree (); | |
10974 | dribble = 0; | |
10975 | ||
10976 | if (keyboard_init_hook) | |
10977 | (*keyboard_init_hook) (); | |
10978 | ||
10979 | #ifdef POLL_FOR_INPUT | |
10980 | poll_suppress_count = 1; | |
10981 | start_polling (); | |
10982 | #endif | |
10983 | } | |
10984 | ||
df0f2ba1 | 10985 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
10986 | event header symbols and put properties on them. */ |
10987 | struct event_head { | |
10988 | Lisp_Object *var; | |
10989 | char *name; | |
10990 | Lisp_Object *kind; | |
10991 | }; | |
10992 | ||
10993 | struct event_head head_table[] = { | |
7406e988 PJ |
10994 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
10995 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
10996 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
10997 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
10998 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 10999 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
11000 | /* `select-window' should be handled just like `switch-frame' |
11001 | in read_key_sequence. */ | |
11002 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
11003 | }; |
11004 | ||
dfcf069d | 11005 | void |
284f4730 JB |
11006 | syms_of_keyboard () |
11007 | { | |
f0c1cc56 GM |
11008 | Vpre_help_message = Qnil; |
11009 | staticpro (&Vpre_help_message); | |
c60ee5e7 | 11010 | |
8e1e4240 GM |
11011 | Vlispy_mouse_stem = build_string ("mouse"); |
11012 | staticpro (&Vlispy_mouse_stem); | |
f0c1cc56 | 11013 | |
9ea173e8 | 11014 | /* Tool-bars. */ |
7ee32cda GM |
11015 | QCimage = intern (":image"); |
11016 | staticpro (&QCimage); | |
11017 | ||
11018 | staticpro (&Qhelp_echo); | |
11019 | Qhelp_echo = intern ("help-echo"); | |
11020 | ||
e8886a1d RS |
11021 | staticpro (&item_properties); |
11022 | item_properties = Qnil; | |
11023 | ||
9ea173e8 GM |
11024 | staticpro (&tool_bar_item_properties); |
11025 | tool_bar_item_properties = Qnil; | |
11026 | staticpro (&tool_bar_items_vector); | |
11027 | tool_bar_items_vector = Qnil; | |
7ee32cda | 11028 | |
d5eecefb RS |
11029 | staticpro (&real_this_command); |
11030 | real_this_command = Qnil; | |
11031 | ||
d925fb39 RS |
11032 | Qtimer_event_handler = intern ("timer-event-handler"); |
11033 | staticpro (&Qtimer_event_handler); | |
11034 | ||
971e4c98 LT |
11035 | Qdisabled_command_function = intern ("disabled-command-function"); |
11036 | staticpro (&Qdisabled_command_function); | |
2e894dab | 11037 | |
284f4730 JB |
11038 | Qself_insert_command = intern ("self-insert-command"); |
11039 | staticpro (&Qself_insert_command); | |
11040 | ||
11041 | Qforward_char = intern ("forward-char"); | |
11042 | staticpro (&Qforward_char); | |
11043 | ||
11044 | Qbackward_char = intern ("backward-char"); | |
11045 | staticpro (&Qbackward_char); | |
11046 | ||
11047 | Qdisabled = intern ("disabled"); | |
11048 | staticpro (&Qdisabled); | |
11049 | ||
e58aa385 RS |
11050 | Qundefined = intern ("undefined"); |
11051 | staticpro (&Qundefined); | |
11052 | ||
86e5706b RS |
11053 | Qpre_command_hook = intern ("pre-command-hook"); |
11054 | staticpro (&Qpre_command_hook); | |
11055 | ||
11056 | Qpost_command_hook = intern ("post-command-hook"); | |
11057 | staticpro (&Qpost_command_hook); | |
11058 | ||
3ef14e46 RS |
11059 | Qdeferred_action_function = intern ("deferred-action-function"); |
11060 | staticpro (&Qdeferred_action_function); | |
11061 | ||
40932d1a RS |
11062 | Qcommand_hook_internal = intern ("command-hook-internal"); |
11063 | staticpro (&Qcommand_hook_internal); | |
11064 | ||
284f4730 JB |
11065 | Qfunction_key = intern ("function-key"); |
11066 | staticpro (&Qfunction_key); | |
13b5e56c | 11067 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 11068 | staticpro (&Qmouse_click); |
c16dab62 | 11069 | #if defined (WINDOWSNT) || defined (MAC_OS) |
1161d367 GV |
11070 | Qlanguage_change = intern ("language-change"); |
11071 | staticpro (&Qlanguage_change); | |
07de30b9 | 11072 | #endif |
a24dc617 RS |
11073 | Qdrag_n_drop = intern ("drag-n-drop"); |
11074 | staticpro (&Qdrag_n_drop); | |
284f4730 | 11075 | |
4ebc27a5 | 11076 | Qsave_session = intern ("save-session"); |
6e604a9b | 11077 | staticpro (&Qsave_session); |
c60ee5e7 | 11078 | |
5bf68f6e AS |
11079 | Qusr1_signal = intern ("usr1-signal"); |
11080 | staticpro (&Qusr1_signal); | |
11081 | Qusr2_signal = intern ("usr2-signal"); | |
11082 | staticpro (&Qusr2_signal); | |
11083 | ||
598a9fa7 JB |
11084 | Qmenu_enable = intern ("menu-enable"); |
11085 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
11086 | Qmenu_alias = intern ("menu-alias"); |
11087 | staticpro (&Qmenu_alias); | |
11088 | QCenable = intern (":enable"); | |
11089 | staticpro (&QCenable); | |
11090 | QCvisible = intern (":visible"); | |
11091 | staticpro (&QCvisible); | |
7ee32cda GM |
11092 | QChelp = intern (":help"); |
11093 | staticpro (&QChelp); | |
e8886a1d RS |
11094 | QCfilter = intern (":filter"); |
11095 | staticpro (&QCfilter); | |
11096 | QCbutton = intern (":button"); | |
11097 | staticpro (&QCbutton); | |
74c1de23 RS |
11098 | QCkeys = intern (":keys"); |
11099 | staticpro (&QCkeys); | |
11100 | QCkey_sequence = intern (":key-sequence"); | |
11101 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
11102 | QCtoggle = intern (":toggle"); |
11103 | staticpro (&QCtoggle); | |
11104 | QCradio = intern (":radio"); | |
11105 | staticpro (&QCradio); | |
598a9fa7 | 11106 | |
284f4730 JB |
11107 | Qmode_line = intern ("mode-line"); |
11108 | staticpro (&Qmode_line); | |
e5d77022 JB |
11109 | Qvertical_line = intern ("vertical-line"); |
11110 | staticpro (&Qvertical_line); | |
3c370943 JB |
11111 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
11112 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
11113 | Qmenu_bar = intern ("menu-bar"); |
11114 | staticpro (&Qmenu_bar); | |
4bb994d1 | 11115 | |
c22237f7 KS |
11116 | #ifdef HAVE_MOUSE |
11117 | Qmouse_fixup_help_message = intern ("mouse-fixup-help-message"); | |
11118 | staticpro (&Qmouse_fixup_help_message); | |
11119 | #endif | |
11120 | ||
4bb994d1 JB |
11121 | Qabove_handle = intern ("above-handle"); |
11122 | staticpro (&Qabove_handle); | |
11123 | Qhandle = intern ("handle"); | |
11124 | staticpro (&Qhandle); | |
11125 | Qbelow_handle = intern ("below-handle"); | |
11126 | staticpro (&Qbelow_handle); | |
db08707d RS |
11127 | Qup = intern ("up"); |
11128 | staticpro (&Qup); | |
11129 | Qdown = intern ("down"); | |
11130 | staticpro (&Qdown); | |
7ee32cda GM |
11131 | Qtop = intern ("top"); |
11132 | staticpro (&Qtop); | |
11133 | Qbottom = intern ("bottom"); | |
11134 | staticpro (&Qbottom); | |
11135 | Qend_scroll = intern ("end-scroll"); | |
11136 | staticpro (&Qend_scroll); | |
eef28553 SM |
11137 | Qratio = intern ("ratio"); |
11138 | staticpro (&Qratio); | |
284f4730 | 11139 | |
cd21b839 | 11140 | Qevent_kind = intern ("event-kind"); |
284f4730 | 11141 | staticpro (&Qevent_kind); |
88cb0656 JB |
11142 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
11143 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
11144 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
11145 | staticpro (&Qevent_symbol_element_mask); | |
11146 | Qmodifier_cache = intern ("modifier-cache"); | |
11147 | staticpro (&Qmodifier_cache); | |
284f4730 | 11148 | |
48e416d4 RS |
11149 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
11150 | staticpro (&Qrecompute_lucid_menubar); | |
11151 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
11152 | staticpro (&Qactivate_menubar_hook); | |
11153 | ||
f4eef8b4 RS |
11154 | Qpolling_period = intern ("polling-period"); |
11155 | staticpro (&Qpolling_period); | |
11156 | ||
7d18f9ae RS |
11157 | Qinput_method_function = intern ("input-method-function"); |
11158 | staticpro (&Qinput_method_function); | |
11159 | ||
d5eecefb RS |
11160 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
11161 | staticpro (&Qinput_method_exit_on_first_char); | |
11162 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
11163 | staticpro (&Qinput_method_use_echo_area); | |
11164 | ||
11165 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
11166 | Fset (Qinput_method_use_echo_area, Qnil); | |
11167 | ||
e18dfbf4 KR |
11168 | last_point_position_buffer = Qnil; |
11169 | ||
284f4730 JB |
11170 | { |
11171 | struct event_head *p; | |
11172 | ||
11173 | for (p = head_table; | |
11174 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
11175 | p++) | |
11176 | { | |
11177 | *p->var = intern (p->name); | |
11178 | staticpro (p->var); | |
11179 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 11180 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
11181 | } |
11182 | } | |
11183 | ||
8e1e4240 | 11184 | button_down_location = Fmake_vector (make_number (1), Qnil); |
7b4aedb9 | 11185 | staticpro (&button_down_location); |
8e1e4240 GM |
11186 | mouse_syms = Fmake_vector (make_number (1), Qnil); |
11187 | staticpro (&mouse_syms); | |
8006e4bb JR |
11188 | wheel_syms = Fmake_vector (make_number (2), Qnil); |
11189 | staticpro (&wheel_syms); | |
88cb0656 JB |
11190 | |
11191 | { | |
11192 | int i; | |
11193 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
11194 | ||
11195 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
11196 | for (i = 0; i < len; i++) | |
86e5706b RS |
11197 | if (modifier_names[i]) |
11198 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
11199 | staticpro (&modifier_symbols); |
11200 | } | |
11201 | ||
9deb415a JB |
11202 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
11203 | staticpro (&recent_keys); | |
11204 | ||
6569cc8d | 11205 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 11206 | staticpro (&this_command_keys); |
6569cc8d | 11207 | |
7d18f9ae RS |
11208 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
11209 | staticpro (&raw_keybuf); | |
11210 | ||
03b4122a BF |
11211 | Qextended_command_history = intern ("extended-command-history"); |
11212 | Fset (Qextended_command_history, Qnil); | |
11213 | staticpro (&Qextended_command_history); | |
11214 | ||
24597608 RS |
11215 | accent_key_syms = Qnil; |
11216 | staticpro (&accent_key_syms); | |
11217 | ||
284f4730 JB |
11218 | func_key_syms = Qnil; |
11219 | staticpro (&func_key_syms); | |
11220 | ||
a24dc617 RS |
11221 | drag_n_drop_syms = Qnil; |
11222 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 11223 | |
cd21b839 JB |
11224 | unread_switch_frame = Qnil; |
11225 | staticpro (&unread_switch_frame); | |
11226 | ||
fe412364 EN |
11227 | internal_last_event_frame = Qnil; |
11228 | staticpro (&internal_last_event_frame); | |
11229 | ||
11230 | read_key_sequence_cmd = Qnil; | |
11231 | staticpro (&read_key_sequence_cmd); | |
11232 | ||
759860a6 RS |
11233 | menu_bar_one_keymap_changed_items = Qnil; |
11234 | staticpro (&menu_bar_one_keymap_changed_items); | |
11235 | ||
7320c7de KS |
11236 | menu_bar_items_vector = Qnil; |
11237 | staticpro (&menu_bar_items_vector); | |
11238 | ||
a1706c30 | 11239 | defsubr (&Sevent_convert_list); |
284f4730 | 11240 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11241 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11242 | defsubr (&Srecursive_edit); |
2eb6bfbe | 11243 | #ifdef HAVE_MOUSE |
284f4730 | 11244 | defsubr (&Strack_mouse); |
2eb6bfbe | 11245 | #endif |
284f4730 JB |
11246 | defsubr (&Sinput_pending_p); |
11247 | defsubr (&Scommand_execute); | |
11248 | defsubr (&Srecent_keys); | |
11249 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11250 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11251 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11252 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11253 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11254 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11255 | defsubr (&Ssuspend_emacs); |
11256 | defsubr (&Sabort_recursive_edit); | |
11257 | defsubr (&Sexit_recursive_edit); | |
11258 | defsubr (&Srecursion_depth); | |
11259 | defsubr (&Stop_level); | |
11260 | defsubr (&Sdiscard_input); | |
11261 | defsubr (&Sopen_dribble_file); | |
11262 | defsubr (&Sset_input_mode); | |
80645119 | 11263 | defsubr (&Scurrent_input_mode); |
284f4730 | 11264 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11265 | defsubr (&Sposn_at_point); |
11266 | defsubr (&Sposn_at_x_y); | |
284f4730 | 11267 | |
284f4730 | 11268 | DEFVAR_LISP ("last-command-char", &last_command_char, |
4707d2d0 | 11269 | doc: /* Last input event that was part of a command. */); |
86e5706b | 11270 | |
186cf719 | 11271 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
4707d2d0 | 11272 | doc: /* Last input event that was part of a command. */); |
284f4730 | 11273 | |
7d6de002 | 11274 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
4707d2d0 PJ |
11275 | doc: /* Last input event in a command, except for mouse menu events. |
11276 | Mouse menus give back keys that don't look like mouse events; | |
11277 | this variable holds the actual mouse event that led to the menu, | |
11278 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 11279 | |
284f4730 | 11280 | DEFVAR_LISP ("last-input-char", &last_input_char, |
fa1361cb | 11281 | doc: /* Last input event. */); |
86e5706b | 11282 | |
186cf719 | 11283 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
4707d2d0 | 11284 | doc: /* Last input event. */); |
284f4730 | 11285 | |
24597608 | 11286 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
4707d2d0 PJ |
11287 | doc: /* List of events to be read as the command input. |
11288 | These events are processed first, before actual keyboard input. */); | |
7d18f9ae | 11289 | Vunread_command_events = Qnil; |
284f4730 | 11290 | |
86e5706b | 11291 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
4707d2d0 | 11292 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 11293 | |
7d18f9ae | 11294 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
4707d2d0 PJ |
11295 | doc: /* List of events to be processed as input by input methods. |
11296 | These events are processed after `unread-command-events', but | |
11297 | before actual keyboard input. */); | |
7d18f9ae RS |
11298 | Vunread_post_input_method_events = Qnil; |
11299 | ||
11300 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
4707d2d0 PJ |
11301 | doc: /* List of events to be processed as input by input methods. |
11302 | These events are processed after `unread-command-events', but | |
11303 | before actual keyboard input. */); | |
7d18f9ae RS |
11304 | Vunread_input_method_events = Qnil; |
11305 | ||
284f4730 | 11306 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
4707d2d0 PJ |
11307 | doc: /* Meta-prefix character code. |
11308 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 11309 | XSETINT (meta_prefix_char, 033); |
284f4730 | 11310 | |
6c7178b9 | 11311 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
11312 | doc: /* The last command executed. |
11313 | Normally a symbol with a function definition, but can be whatever was found | |
11314 | in the keymap, or whatever the variable `this-command' was set to by that | |
11315 | command. | |
11316 | ||
11317 | The value `mode-exit' is special; it means that the previous command | |
11318 | read an event that told it to exit, and it did so and unread that event. | |
11319 | In other words, the present command is the event that made the previous | |
11320 | command exit. | |
11321 | ||
11322 | The value `kill-region' is special; it means that the previous command | |
2a42d440 KL |
11323 | was a kill command. |
11324 | ||
11325 | `last-command' has a separate binding for each display device. | |
11326 | See Info node `(elisp)Multiple displays'. */); | |
284f4730 | 11327 | |
75045dcb | 11328 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 11329 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 11330 | |
d5eecefb | 11331 | DEFVAR_LISP ("this-command", &Vthis_command, |
4707d2d0 PJ |
11332 | doc: /* The command now being executed. |
11333 | The command can set this variable; whatever is put here | |
11334 | will be in `last-command' during the following command. */); | |
d5eecefb | 11335 | Vthis_command = Qnil; |
284f4730 | 11336 | |
8b9940e6 | 11337 | DEFVAR_LISP ("this-original-command", &Vthis_original_command, |
f5613d1e KS |
11338 | doc: /* The command bound to the current key sequence before remapping. |
11339 | It equals `this-command' if the original command was not remapped through | |
11340 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 11341 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
11342 | Vthis_original_command = Qnil; |
11343 | ||
284f4730 | 11344 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, |
4707d2d0 PJ |
11345 | doc: /* *Number of input events between auto-saves. |
11346 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
11347 | auto_save_interval = 300; |
11348 | ||
11349 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
4707d2d0 PJ |
11350 | doc: /* *Number of seconds idle time before auto-save. |
11351 | Zero or nil means disable auto-saving due to idleness. | |
11352 | After auto-saving due to this many seconds of idle time, | |
11353 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 11354 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 11355 | |
39aab679 | 11356 | DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes, |
4707d2d0 PJ |
11357 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
11358 | The value may be integer or floating point. */); | |
39aab679 | 11359 | Vecho_keystrokes = make_number (1); |
284f4730 JB |
11360 | |
11361 | DEFVAR_INT ("polling-period", &polling_period, | |
4707d2d0 PJ |
11362 | doc: /* *Interval between polling for input during Lisp execution. |
11363 | The reason for polling is to make C-g work to stop a running program. | |
11364 | Polling is needed only when using X windows and SIGIO does not work. | |
11365 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 11366 | polling_period = 2; |
df0f2ba1 | 11367 | |
564dc952 | 11368 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
4707d2d0 PJ |
11369 | doc: /* *Maximum time between mouse clicks to make a double-click. |
11370 | Measured in milliseconds. nil means disable double-click recognition; | |
11371 | t means double-clicks have no time limit and are detected | |
11372 | by position only. */); | |
aab06933 | 11373 | Vdouble_click_time = make_number (500); |
fbcd35bd | 11374 | |
222d557c | 11375 | DEFVAR_INT ("double-click-fuzz", &double_click_fuzz, |
4707d2d0 PJ |
11376 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
11377 | On window-system frames, value is the number of pixels the mouse may have | |
11378 | moved horizontally or vertically between two clicks to make a double-click. | |
11379 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
11380 | instead of pixels. |
11381 | ||
11382 | This variable is also the threshold for motion of the mouse | |
11383 | to count as a drag. */); | |
222d557c | 11384 | double_click_fuzz = 3; |
c60ee5e7 | 11385 | |
03361bcc | 11386 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
4707d2d0 | 11387 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
11388 | inhibit_local_menu_bar_menus = 0; |
11389 | ||
284f4730 | 11390 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
4707d2d0 PJ |
11391 | doc: /* Number of complete key sequences read as input so far. |
11392 | This includes key sequences read from keyboard macros. | |
11393 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
11394 | num_input_keys = 0; |
11395 | ||
c43b1734 | 11396 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
4707d2d0 PJ |
11397 | doc: /* Number of input events read from the keyboard so far. |
11398 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 11399 | num_nonmacro_input_events = 0; |
fa90970d | 11400 | |
4c52b668 | 11401 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
4707d2d0 PJ |
11402 | doc: /* The frame in which the most recently read event occurred. |
11403 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
11404 | Vlast_event_frame = Qnil; |
11405 | ||
fa90970d RS |
11406 | /* This variable is set up in sysdep.c. */ |
11407 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
4707d2d0 | 11408 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 11409 | |
7e85b935 | 11410 | DEFVAR_LISP ("help-char", &Vhelp_char, |
4707d2d0 PJ |
11411 | doc: /* Character to recognize as meaning Help. |
11412 | When it is read, do `(eval help-form)', and display result if it's a string. | |
11413 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 11414 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 11415 | |
ecb7cb34 | 11416 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
4707d2d0 PJ |
11417 | doc: /* List of input events to recognize as meaning Help. |
11418 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
11419 | Vhelp_event_list = Qnil; |
11420 | ||
284f4730 | 11421 | DEFVAR_LISP ("help-form", &Vhelp_form, |
4707d2d0 PJ |
11422 | doc: /* Form to execute when character `help-char' is read. |
11423 | If the form returns a string, that string is displayed. | |
11424 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
11425 | Vhelp_form = Qnil; |
11426 | ||
7e85b935 | 11427 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
4707d2d0 PJ |
11428 | doc: /* Command to run when `help-char' character follows a prefix key. |
11429 | This command is used only when there is no actual binding | |
11430 | for that character after that prefix key. */); | |
7e85b935 RS |
11431 | Vprefix_help_command = Qnil; |
11432 | ||
284f4730 | 11433 | DEFVAR_LISP ("top-level", &Vtop_level, |
4707d2d0 PJ |
11434 | doc: /* Form to evaluate when Emacs starts up. |
11435 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
11436 | Vtop_level = Qnil; |
11437 | ||
2e478293 KL |
11438 | DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table, |
11439 | doc: /* Translate table for local keyboard input, or nil. | |
669de2fb LT |
11440 | If non-nil, the value should be a char-table. Each character read |
11441 | from the keyboard is looked up in this char-table. If the value found | |
11442 | there is non-nil, then it is used instead of the actual input character. | |
11443 | ||
11444 | The value can also be a string or vector, but this is considered obsolete. | |
11445 | If it is a string or vector of length N, character codes N and up are left | |
11446 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
11447 | |
11448 | This is applied to the characters supplied to input methods, not their | |
2e478293 KL |
11449 | output. See also `translation-table-for-input'. |
11450 | ||
11451 | `local-keyboard-translate-table' has a separate binding for each | |
11452 | terminal. See Info node `(elisp)Multiple displays'. */); | |
284f4730 | 11453 | |
8026024c | 11454 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
4707d2d0 PJ |
11455 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
11456 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
11457 | cannot_suspend = 0; |
11458 | ||
284f4730 | 11459 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
4707d2d0 PJ |
11460 | doc: /* Non-nil means prompt with menus when appropriate. |
11461 | This is done when reading from a keymap that has a prompt string, | |
11462 | for elements that have prompt strings. | |
11463 | The menu is displayed on the screen | |
11464 | if X menus were enabled at configuration | |
11465 | time and the previous event was a mouse click prefix key. | |
11466 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
11467 | menu_prompting = 1; |
11468 | ||
11469 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
4707d2d0 PJ |
11470 | doc: /* Character to see next line of menu prompt. |
11471 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 11472 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
11473 | |
11474 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
4707d2d0 PJ |
11475 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
11476 | Emacs applies the modifiers of the character stored here to each keyboard | |
11477 | character it reads. For example, after evaluating the expression | |
11478 | (setq extra-keyboard-modifiers ?\\C-x) | |
11479 | all input characters will have the control modifier applied to them. | |
11480 | ||
11481 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
11482 | not count as a control character; rather, it counts as a character | |
11483 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
11484 | cancels any modification. */); | |
9fa4395d | 11485 | extra_keyboard_modifiers = 0; |
86e5706b RS |
11486 | |
11487 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
4707d2d0 PJ |
11488 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
11489 | The command loop sets this to nil before each command, | |
11490 | and tests the value when the command returns. | |
11491 | Buffer modification stores t in this variable. */); | |
86e5706b RS |
11492 | Vdeactivate_mark = Qnil; |
11493 | ||
b0f2a7bf | 11494 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
4707d2d0 | 11495 | doc: /* Temporary storage of pre-command-hook or post-command-hook. */); |
b0f2a7bf KH |
11496 | Vcommand_hook_internal = Qnil; |
11497 | ||
86e5706b | 11498 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
4707d2d0 PJ |
11499 | doc: /* Normal hook run before each command is executed. |
11500 | If an unhandled error happens in running this hook, | |
11501 | the hook value is set to nil, since otherwise the error | |
11502 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
11503 | Vpre_command_hook = Qnil; |
11504 | ||
11505 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
4707d2d0 PJ |
11506 | doc: /* Normal hook run after each command is executed. |
11507 | If an unhandled error happens in running this hook, | |
11508 | the hook value is set to nil, since otherwise the error | |
11509 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 11510 | Vpost_command_hook = Qnil; |
48e416d4 | 11511 | |
cf24f894 RS |
11512 | #if 0 |
11513 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 11514 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 RS |
11515 | #endif |
11516 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
c8e16a02 | 11517 | staticpro (&Qecho_area_clear_hook); |
cf24f894 | 11518 | SET_SYMBOL_VALUE (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 11519 | |
48e416d4 | 11520 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
fa1361cb | 11521 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 11522 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 11523 | |
9f9c0e27 | 11524 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
4707d2d0 PJ |
11525 | doc: /* List of menu bar items to move to the end of the menu bar. |
11526 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 11527 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 11528 | |
217258d5 KH |
11529 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
11530 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
11531 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
11532 | If this variable is non-nil, it is used as a keymap instead of the | |
11533 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
11534 | It also replaces `overriding-local-map'. |
11535 | ||
4707d2d0 | 11536 | This variable is intended to let commands such as `universal-argument' |
2a42d440 KL |
11537 | set up a different keymap for reading the next command. |
11538 | ||
11539 | `overriding-terminal-local-map' has a separate binding for each display device. | |
11540 | See Info node `(elisp)Multiple displays'. */); | |
217258d5 | 11541 | |
9dd3131c | 11542 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
4707d2d0 | 11543 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
11544 | If this variable is non-nil, it is used as a keymap--replacing the |
11545 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
11546 | Voverriding_local_map = Qnil; |
11547 | ||
d0a49716 | 11548 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11549 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11550 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11551 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11552 | Voverriding_local_map_menu_flag = Qnil; |
11553 | ||
7f07d5ca | 11554 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
4707d2d0 | 11555 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
7f07d5ca RS |
11556 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); |
11557 | ||
71edead1 | 11558 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
4707d2d0 | 11559 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11560 | |
7c97ffdc | 11561 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11562 | doc: /* Alist of system-specific X windows key symbols. |
11563 | Each element should have the form (N . SYMBOL) where N is the | |
11564 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
2a42d440 KL |
11565 | and SYMBOL is its name. |
11566 | ||
11567 | `system-key-alist' has a separate binding for each display device. | |
11568 | See Info node `(elisp)Multiple displays'. | |
11569 | ||
11570 | Note that the currently selected frame has very little to do with | |
11571 | which binding of this variable is active at any given moment. If you | |
11572 | need set or get the binding on a specific display, use | |
11573 | `terminal-local-value' and `set-terminal-local-value'. */); | |
8a792f3a | 11574 | |
ac09dc1e | 11575 | DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map, |
f01b6d17 KL |
11576 | doc: /* Keymap mapping ASCII function key sequences onto their preferred forms. |
11577 | This allows Emacs to recognize function keys sent from ASCII | |
11578 | terminals at any point in a key sequence. | |
11579 | ||
11580 | The `read-key-sequence' function replaces any subsequence bound by | |
7a81ec10 KL |
11581 | `local-function-key-map' with its binding. More precisely, when the |
11582 | active keymaps have no binding for the current key sequence but | |
11583 | `local-function-key-map' binds a suffix of the sequence to a vector or | |
11584 | string, `read-key-sequence' replaces the matching suffix with its | |
11585 | binding, and continues with the new sequence. | |
f01b6d17 | 11586 | |
7a81ec10 KL |
11587 | The events that come from bindings in `local-function-key-map' are not |
11588 | themselves looked up in `local-function-key-map'. | |
f01b6d17 | 11589 | |
7a81ec10 | 11590 | For example, suppose `local-function-key-map' binds `ESC O P' to [f1]. |
f01b6d17 | 11591 | Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing |
7a81ec10 KL |
11592 | `C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key, |
11593 | typing `ESC O P x' would return [f1 x]. | |
f01b6d17 | 11594 | |
7a81ec10 KL |
11595 | `local-function-key-map' has a separate binding for each display |
11596 | device. See Info node `(elisp)Multiple displays'. If you need to | |
11597 | define a binding on all display devices, change `function-key-map' | |
11598 | instead. Initially, `local-function-key-map' is an empty keymap that | |
11599 | has `function-key-map' as its parent on all display devices. | |
2a42d440 KL |
11600 | |
11601 | Note that the currently selected frame has very little to do with | |
11602 | which binding of this variable is active at any given moment. If you | |
11603 | need set or get the binding on a specific display, use | |
11604 | `terminal-local-value' and `set-terminal-local-value'. */); | |
f01b6d17 | 11605 | |
ac09dc1e KL |
11606 | DEFVAR_LISP ("function-key-map", &Vfunction_key_map, |
11607 | doc: /* The parent keymap of all `local-function-key-map' instances. | |
11608 | Function key definitions that apply to all display devices should go | |
7a81ec10 KL |
11609 | here. If a mapping is defined in both the current |
11610 | `local-function-key-map' binding and this variable, then the local | |
11611 | definition will take precendence. */); | |
ac09dc1e KL |
11612 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
11613 | ||
11614 | DEFVAR_KBOARD ("local-key-translation-map", Vlocal_key_translation_map, | |
4ea81208 KL |
11615 | doc: /* Keymap of key translations that can override keymaps. |
11616 | This keymap works like `function-key-map', but comes after that, | |
11617 | and its non-prefix bindings override ordinary bindings. | |
11618 | ||
11619 | `key-translation-map' has a separate binding for each display device. | |
11620 | (See Info node `(elisp)Multiple displays'.) If you need to set a key | |
2a42d440 KL |
11621 | translation on all devices, change `global-key-translation-map' instead. |
11622 | ||
11623 | Note that the currently selected frame has very little to do with | |
11624 | which binding of this variable is active at any given moment. If you | |
11625 | need set or get the binding on a specific display, use | |
11626 | `terminal-local-value' and `set-terminal-local-value'. */); | |
4ea81208 | 11627 | |
ac09dc1e KL |
11628 | DEFVAR_LISP ("key-translation-map", &Vkey_translation_map, |
11629 | doc: /* The parent keymap of all `local-key-translation-map' instances. | |
11630 | Key translations that apply to all display devices should go here. */); | |
11631 | Vkey_translation_map = Fmake_sparse_keymap (Qnil); | |
4ea81208 | 11632 | |
8a792f3a | 11633 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, |
4707d2d0 PJ |
11634 | doc: /* List of deferred actions to be performed at a later time. |
11635 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
11636 | Vdeferred_action_list = Qnil; |
11637 | ||
11638 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
4707d2d0 PJ |
11639 | doc: /* Function to call to handle deferred actions, after each command. |
11640 | This function is called with no arguments after each command | |
11641 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 11642 | Vdeferred_action_function = Qnil; |
6526ab49 RS |
11643 | |
11644 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
4707d2d0 PJ |
11645 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
11646 | The value can be a length of time to show the message for. | |
11647 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 11648 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 11649 | |
c04cbc3b | 11650 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
4707d2d0 | 11651 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 11652 | Vtimer_list = Qnil; |
d9d4c147 KH |
11653 | |
11654 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
4707d2d0 | 11655 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 11656 | Vtimer_idle_list = Qnil; |
7d18f9ae RS |
11657 | |
11658 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
4707d2d0 PJ |
11659 | doc: /* If non-nil, the function that implements the current input method. |
11660 | It's called with one argument, a printing character that was just read. | |
11661 | \(That means a character with code 040...0176.) | |
11662 | Typically this function uses `read-event' to read additional events. | |
11663 | When it does so, it should first bind `input-method-function' to nil | |
11664 | so it will not be called recursively. | |
11665 | ||
11666 | The function should return a list of zero or more events | |
11667 | to be used as input. If it wants to put back some events | |
11668 | to be reconsidered, separately, by the input method, | |
11669 | it can add them to the beginning of `unread-command-events'. | |
11670 | ||
11671 | The input method function can find in `input-method-previous-method' | |
11672 | the previous echo area message. | |
11673 | ||
11674 | The input method function should refer to the variables | |
11675 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
11676 | for guidance on what to do. */); | |
7d18f9ae | 11677 | Vinput_method_function = Qnil; |
d5eecefb RS |
11678 | |
11679 | DEFVAR_LISP ("input-method-previous-message", | |
11680 | &Vinput_method_previous_message, | |
4707d2d0 PJ |
11681 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
11682 | This variable exists because `read-event' clears the echo area | |
11683 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 11684 | Vinput_method_previous_message = Qnil; |
7ee32cda GM |
11685 | |
11686 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
4707d2d0 PJ |
11687 | doc: /* If non-nil, the function that implements the display of help. |
11688 | It's called with one argument, the help string to display. */); | |
7ee32cda | 11689 | Vshow_help_function = Qnil; |
adf5cb9c KH |
11690 | |
11691 | DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment, | |
4707d2d0 PJ |
11692 | doc: /* If non-nil, suppress point adjustment after executing a command. |
11693 | ||
11694 | After a command is executed, if point is moved into a region that has | |
11695 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
11696 | the boundary of the region. But, when a command sets this variable to |
11697 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
11698 | |
11699 | This variable is set to nil before reading a command, and is checked | |
11700 | just after executing the command. */); | |
adf5cb9c KH |
11701 | Vdisable_point_adjustment = Qnil; |
11702 | ||
11703 | DEFVAR_LISP ("global-disable-point-adjustment", | |
11704 | &Vglobal_disable_point_adjustment, | |
4707d2d0 PJ |
11705 | doc: /* *If non-nil, always suppress point adjustment. |
11706 | ||
11707 | The default value is nil, in which case, point adjustment are | |
11708 | suppressed only after special commands that set | |
11709 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 11710 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 11711 | |
00392ce6 | 11712 | DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout, |
4707d2d0 PJ |
11713 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
11714 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 11715 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da KS |
11716 | |
11717 | DEFVAR_LISP ("throw-on-input", &Vthrow_on_input, | |
11718 | doc: /* If non-nil, any keyboard input throws to this symbol. | |
11719 | The value of that variable is passed to `quit-flag' and later causes a | |
11720 | peculiar kind of quitting. */); | |
11721 | Vthrow_on_input = Qnil; | |
284f4730 JB |
11722 | } |
11723 | ||
dfcf069d | 11724 | void |
284f4730 JB |
11725 | keys_of_keyboard () |
11726 | { | |
11727 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
11728 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
11729 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
11730 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
11731 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
11732 | |
11733 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
11734 | "handle-delete-frame"); | |
a18bf897 SM |
11735 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
11736 | current-prefix-arg, as is done in `handle-switch-frame'. | |
11737 | But `handle-switch-frame is not run from the special-map. | |
11738 | Commands from that map are run in a special way that automatically | |
11739 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
11740 | redundant but harmful: | |
11741 | - C-u C-x v = | |
11742 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
11743 | - after the first prompt, the exit-minibuffer-hook is run which may | |
11744 | iconify a frame and thus push a `iconify-frame' event. | |
11745 | - after running exit-minibuffer-hook, current-prefix-arg is | |
11746 | restored to the non-nil value it had before the prompt. | |
11747 | - we enter the second prompt. | |
11748 | current-prefix-arg is non-nil, prefix-arg is nil. | |
11749 | - before running the first real event, we run the special iconify-frame | |
11750 | event, but we pass the `special' arg to execute-command so | |
11751 | current-prefix-arg and prefix-arg are left untouched. | |
11752 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
11753 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 11754 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 11755 | "ignore"); |
7f07d5ca | 11756 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 11757 | "ignore"); |
a4e19f6e SM |
11758 | /* Handling it at such a low-level causes read_key_sequence to get |
11759 | * confused because it doesn't realize that the current_buffer was | |
11760 | * changed by read_char. | |
2320865d | 11761 | * |
a4e19f6e SM |
11762 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
11763 | * "handle-select-window"); */ | |
4ebc27a5 JD |
11764 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
11765 | "handle-save-session"); | |
284f4730 | 11766 | } |
1269a761 SM |
11767 | |
11768 | /* Mark the pointers in the kboard objects. | |
11769 | Called by the Fgarbage_collector. */ | |
11770 | void | |
11771 | mark_kboards () | |
11772 | { | |
11773 | KBOARD *kb; | |
11774 | Lisp_Object *p; | |
11775 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
11776 | { | |
11777 | if (kb->kbd_macro_buffer) | |
11778 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
11779 | mark_object (*p); |
11780 | mark_object (kb->Voverriding_terminal_local_map); | |
11781 | mark_object (kb->Vlast_command); | |
11782 | mark_object (kb->Vreal_last_command); | |
1d33157f | 11783 | mark_object (kb->Vkeyboard_translate_table); |
3ebb8729 SM |
11784 | mark_object (kb->Vprefix_arg); |
11785 | mark_object (kb->Vlast_prefix_arg); | |
11786 | mark_object (kb->kbd_queue); | |
11787 | mark_object (kb->defining_kbd_macro); | |
11788 | mark_object (kb->Vlast_kbd_macro); | |
11789 | mark_object (kb->Vsystem_key_alist); | |
11790 | mark_object (kb->system_key_syms); | |
ac09dc1e KL |
11791 | mark_object (kb->Vlocal_function_key_map); |
11792 | mark_object (kb->Vlocal_key_translation_map); | |
3ebb8729 SM |
11793 | mark_object (kb->Vdefault_minibuffer_frame); |
11794 | mark_object (kb->echo_string); | |
1269a761 SM |
11795 | } |
11796 | { | |
11797 | struct input_event *event; | |
11798 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
11799 | { | |
11800 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
11801 | event = kbd_buffer; | |
e3f6e7c7 KS |
11802 | if (event->kind != SELECTION_REQUEST_EVENT |
11803 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
11804 | { |
11805 | mark_object (event->x); | |
11806 | mark_object (event->y); | |
11807 | } | |
3ebb8729 SM |
11808 | mark_object (event->frame_or_window); |
11809 | mark_object (event->arg); | |
1269a761 SM |
11810 | } |
11811 | } | |
11812 | } | |
ab5796a9 MB |
11813 | |
11814 | /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca | |
11815 | (do not change this comment) */ |