Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
95df8112 GM |
2 | |
3 | Copyright (C) 1985-1989, 1993-1997, 1999-2011 Free Software Foundation, Inc. | |
284f4730 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
284f4730 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
284f4730 JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
284f4730 | 19 | |
18160b98 | 20 | #include <config.h> |
68c45bf0 | 21 | #include <signal.h> |
284f4730 | 22 | #include <stdio.h> |
d7306fe6 | 23 | #include <setjmp.h> |
9628b887 | 24 | #include "lisp.h" |
284f4730 JB |
25 | #include "termchar.h" |
26 | #include "termopts.h" | |
428a555e | 27 | #include "frame.h" |
284f4730 JB |
28 | #include "termhooks.h" |
29 | #include "macros.h" | |
02639609 | 30 | #include "keyboard.h" |
284f4730 JB |
31 | #include "window.h" |
32 | #include "commands.h" | |
33 | #include "buffer.h" | |
8b461910 | 34 | #include "character.h" |
284f4730 | 35 | #include "disptab.h" |
f4255cd1 | 36 | #include "dispextern.h" |
e39da3d7 | 37 | #include "syntax.h" |
497ba7a1 | 38 | #include "intervals.h" |
bdb7aa47 | 39 | #include "keymap.h" |
9ac0d9e0 | 40 | #include "blockinput.h" |
e8886a1d | 41 | #include "puresize.h" |
8a9f5d3c GM |
42 | #include "systime.h" |
43 | #include "atimer.h" | |
83380e65 | 44 | #include "process.h" |
284f4730 JB |
45 | #include <errno.h> |
46 | ||
aa477689 JD |
47 | #ifdef HAVE_GTK_AND_PTHREAD |
48 | #include <pthread.h> | |
49 | #endif | |
80e4aa30 RS |
50 | #ifdef MSDOS |
51 | #include "msdos.h" | |
52 | #include <time.h> | |
53 | #else /* not MSDOS */ | |
284f4730 | 54 | #include <sys/ioctl.h> |
80e4aa30 | 55 | #endif /* not MSDOS */ |
284f4730 | 56 | |
52baf19e | 57 | #include "syssignal.h" |
52baf19e | 58 | |
03cee6ae | 59 | #include <sys/types.h> |
03cee6ae | 60 | #include <unistd.h> |
e31d908f | 61 | #include <fcntl.h> |
e31d908f | 62 | |
c5e3b6c5 RS |
63 | /* This is to get the definitions of the XK_ symbols. */ |
64 | #ifdef HAVE_X_WINDOWS | |
65 | #include "xterm.h" | |
66 | #endif | |
67 | ||
e98a93eb GV |
68 | #ifdef HAVE_NTGUI |
69 | #include "w32term.h" | |
70 | #endif /* HAVE_NTGUI */ | |
71 | ||
edfda783 AR |
72 | #ifdef HAVE_NS |
73 | #include "nsterm.h" | |
edfda783 AR |
74 | #endif |
75 | ||
9ac0d9e0 JB |
76 | /* Variables for blockinput.h: */ |
77 | ||
78 | /* Non-zero if interrupt input is blocked right now. */ | |
cf2db145 | 79 | volatile int interrupt_input_blocked; |
9ac0d9e0 JB |
80 | |
81 | /* Nonzero means an input interrupt has arrived | |
82 | during the current critical section. */ | |
63927c41 | 83 | int interrupt_input_pending; |
9ac0d9e0 | 84 | |
ceb18827 CY |
85 | /* This var should be (interrupt_input_pending || pending_atimers). |
86 | The QUIT macro checks this instead of interrupt_input_pending and | |
87 | pending_atimers separately, to reduce code size. So, any code that | |
88 | changes interrupt_input_pending or pending_atimers should update | |
89 | this too. */ | |
07a1e794 | 90 | #ifdef SYNC_INPUT |
ceb18827 | 91 | int pending_signals; |
07a1e794 | 92 | #endif |
ceb18827 | 93 | |
de11c1ea | 94 | #define KBD_BUFFER_SIZE 4096 |
284f4730 | 95 | |
c5fdd383 KH |
96 | KBOARD *initial_kboard; |
97 | KBOARD *current_kboard; | |
98 | KBOARD *all_kboards; | |
1e8bd3da | 99 | int single_kboard; |
612b78ef | 100 | |
284f4730 | 101 | /* Non-nil disable property on a command means |
971e4c98 LT |
102 | do not execute it; call disabled-command-function's value instead. */ |
103 | Lisp_Object Qdisabled, Qdisabled_command_function; | |
284f4730 | 104 | |
0721f230 | 105 | #define NUM_RECENT_KEYS (300) |
284f4730 JB |
106 | int recent_keys_index; /* Index for storing next element into recent_keys */ |
107 | int total_keys; /* Total number of elements stored into recent_keys */ | |
0721f230 | 108 | Lisp_Object recent_keys; /* Vector holds the last NUM_RECENT_KEYS keystrokes */ |
284f4730 | 109 | |
6569cc8d JB |
110 | /* Vector holding the key sequence that invoked the current command. |
111 | It is reused for each command, and it may be longer than the current | |
112 | sequence; this_command_key_count indicates how many elements | |
113 | actually mean something. | |
114 | It's easier to staticpro a single Lisp_Object than an array. */ | |
115 | Lisp_Object this_command_keys; | |
116 | int this_command_key_count; | |
284f4730 | 117 | |
63020c46 RS |
118 | /* 1 after calling Freset_this_command_lengths. |
119 | Usually it is 0. */ | |
120 | int this_command_key_count_reset; | |
121 | ||
7d18f9ae RS |
122 | /* This vector is used as a buffer to record the events that were actually read |
123 | by read_key_sequence. */ | |
124 | Lisp_Object raw_keybuf; | |
125 | int raw_keybuf_count; | |
126 | ||
127 | #define GROW_RAW_KEYBUF \ | |
7189cad8 | 128 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ |
6bf377e2 | 129 | raw_keybuf = larger_vector (raw_keybuf, raw_keybuf_count * 2, Qnil) \ |
7d18f9ae | 130 | |
6321824f RS |
131 | /* Number of elements of this_command_keys |
132 | that precede this key sequence. */ | |
133 | int this_single_command_key_start; | |
134 | ||
71918b75 RS |
135 | /* Record values of this_command_key_count and echo_length () |
136 | before this command was read. */ | |
137 | static int before_command_key_count; | |
138 | static int before_command_echo_length; | |
71918b75 | 139 | |
284f4730 | 140 | /* For longjmp to where kbd input is being done. */ |
f0c1cc56 | 141 | |
284f4730 JB |
142 | static jmp_buf getcjmp; |
143 | ||
144 | /* True while doing kbd input. */ | |
145 | int waiting_for_input; | |
146 | ||
147 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 148 | |
c843d6c6 | 149 | int echoing; |
284f4730 | 150 | |
985f9f66 GM |
151 | /* Non-null means we can start echoing at the next input pause even |
152 | though there is something in the echo area. */ | |
153 | ||
154 | static struct kboard *ok_to_echo_at_next_pause; | |
155 | ||
59a84f8e GM |
156 | /* The kboard last echoing, or null for none. Reset to 0 in |
157 | cancel_echoing. If non-null, and a current echo area message | |
158 | exists, and echo_message_buffer is eq to the current message | |
159 | buffer, we know that the message comes from echo_kboard. */ | |
985f9f66 | 160 | |
f49aedfd | 161 | struct kboard *echo_kboard; |
1fc93d49 | 162 | |
59a84f8e GM |
163 | /* The buffer used for echoing. Set in echo_now, reset in |
164 | cancel_echoing. */ | |
165 | ||
c843d6c6 | 166 | Lisp_Object echo_message_buffer; |
59a84f8e | 167 | |
80e4aa30 | 168 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
169 | int immediate_quit; |
170 | ||
284f4730 JB |
171 | /* Character that causes a quit. Normally C-g. |
172 | ||
173 | If we are running on an ordinary terminal, this must be an ordinary | |
174 | ASCII char, since we want to make it our interrupt character. | |
175 | ||
176 | If we are not running on an ordinary terminal, it still needs to be | |
177 | an ordinary ASCII char. This character needs to be recognized in | |
178 | the input interrupt handler. At this point, the keystroke is | |
179 | represented as a struct input_event, while the desired quit | |
180 | character is specified as a lispy event. The mapping from struct | |
181 | input_events to lispy events cannot run in an interrupt handler, | |
182 | and the reverse mapping is difficult for anything but ASCII | |
183 | keystrokes. | |
184 | ||
185 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
186 | ASCII character. */ | |
187 | int quit_char; | |
188 | ||
284f4730 JB |
189 | /* Current depth in recursive edits. */ |
190 | int command_loop_level; | |
191 | ||
cd21b839 JB |
192 | /* If not Qnil, this is a switch-frame event which we decided to put |
193 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 194 | next command input, after any unread_command_events. |
8f805655 JB |
195 | |
196 | read_key_sequence uses this to delay switch-frame events until the | |
197 | end of the key sequence; Fread_char uses it to put off switch-frame | |
198 | events until a non-ASCII event is acceptable as input. */ | |
199 | Lisp_Object unread_switch_frame; | |
cd21b839 | 200 | |
284f4730 | 201 | /* Last size recorded for a current buffer which is not a minibuffer. */ |
41118bd3 | 202 | static EMACS_INT last_non_minibuf_size; |
284f4730 | 203 | |
284f4730 | 204 | /* Total number of times read_char has returned. */ |
4abfba1f | 205 | int num_input_events; |
284f4730 | 206 | |
c43b1734 | 207 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
208 | |
209 | int last_auto_save; | |
210 | ||
d5eecefb RS |
211 | /* This is like Vthis_command, except that commands never set it. */ |
212 | Lisp_Object real_this_command; | |
284f4730 | 213 | |
bb0e1d19 | 214 | /* The value of point when the last command was started. */ |
41118bd3 | 215 | EMACS_INT last_point_position; |
b453f72e | 216 | |
047688cb RS |
217 | /* The buffer that was current when the last command was started. */ |
218 | Lisp_Object last_point_position_buffer; | |
219 | ||
bb0e1d19 RS |
220 | /* The window that was selected when the last command was started. */ |
221 | Lisp_Object last_point_position_window; | |
222 | ||
4c52b668 KH |
223 | /* The frame in which the last input event occurred, or Qmacro if the |
224 | last event came from a macro. We use this to determine when to | |
225 | generate switch-frame events. This may be cleared by functions | |
226 | like Fselect_frame, to make sure that a switch-frame event is | |
227 | generated by the next character. */ | |
228 | Lisp_Object internal_last_event_frame; | |
4c52b668 | 229 | |
1113d9db JB |
230 | /* The timestamp of the last input event we received from the X server. |
231 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
232 | unsigned long last_event_timestamp; |
233 | ||
1c409d0b | 234 | Lisp_Object Qx_set_selection, QPRIMARY, Qhandle_switch_frame; |
9852377f | 235 | |
284f4730 JB |
236 | Lisp_Object Qself_insert_command; |
237 | Lisp_Object Qforward_char; | |
238 | Lisp_Object Qbackward_char; | |
e58aa385 | 239 | Lisp_Object Qundefined; |
d925fb39 | 240 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
241 | |
242 | /* read_key_sequence stores here the command definition of the | |
243 | key sequence that it reads. */ | |
244 | Lisp_Object read_key_sequence_cmd; | |
245 | ||
7d18f9ae RS |
246 | Lisp_Object Qinput_method_function; |
247 | ||
5c4cc82a | 248 | Lisp_Object Qdeactivate_mark; |
86e5706b | 249 | |
48e416d4 RS |
250 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; |
251 | ||
cf24f894 | 252 | Lisp_Object Qecho_area_clear_hook; |
cdb9d665 | 253 | |
86e5706b | 254 | /* Hooks to run before and after each command. */ |
29208e82 TT |
255 | Lisp_Object Qpre_command_hook; |
256 | Lisp_Object Qpost_command_hook; | |
257 | Lisp_Object Qcommand_hook_internal; | |
ac09dc1e | 258 | |
3ef14e46 | 259 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 260 | |
d5eecefb RS |
261 | Lisp_Object Qinput_method_exit_on_first_char; |
262 | Lisp_Object Qinput_method_use_echo_area; | |
263 | ||
284f4730 JB |
264 | /* File in which we write all commands we read. */ |
265 | FILE *dribble; | |
266 | ||
267 | /* Nonzero if input is available. */ | |
268 | int input_pending; | |
269 | ||
beecf6a1 | 270 | /* Circular buffer for pre-read keyboard input. */ |
da8f7368 | 271 | |
beecf6a1 KH |
272 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; |
273 | ||
beecf6a1 KH |
274 | /* Pointer to next available character in kbd_buffer. |
275 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
5cb6905d | 276 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the |
beecf6a1 KH |
277 | next available char is in kbd_buffer[0]. */ |
278 | static struct input_event *kbd_fetch_ptr; | |
279 | ||
280 | /* Pointer to next place to store character in kbd_buffer. This | |
281 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
282 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 283 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
284 | |
285 | /* The above pair of variables forms a "queue empty" flag. When we | |
286 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
287 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
e0f24100 | 288 | there is input available if the two pointers are not equal. |
beecf6a1 KH |
289 | |
290 | Why not just have a flag set and cleared by the enqueuing and | |
291 | dequeuing functions? Such a flag could be screwed up by interrupts | |
292 | at inopportune times. */ | |
293 | ||
284f4730 JB |
294 | /* Symbols to head events. */ |
295 | Lisp_Object Qmouse_movement; | |
3c370943 | 296 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 297 | Lisp_Object Qswitch_frame; |
bbdc2092 | 298 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
299 | Lisp_Object Qiconify_frame; |
300 | Lisp_Object Qmake_frame_visible; | |
a697f886 | 301 | Lisp_Object Qselect_window; |
7ee32cda | 302 | Lisp_Object Qhelp_echo; |
cd21b839 | 303 | |
ae372f41 | 304 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 KS |
305 | Lisp_Object Qmouse_fixup_help_message; |
306 | #endif | |
307 | ||
284f4730 JB |
308 | /* Symbols to denote kinds of events. */ |
309 | Lisp_Object Qfunction_key; | |
310 | Lisp_Object Qmouse_click; | |
9e2a2647 | 311 | #if defined (WINDOWSNT) |
1161d367 | 312 | Lisp_Object Qlanguage_change; |
07de30b9 | 313 | #endif |
a24dc617 | 314 | Lisp_Object Qdrag_n_drop; |
4ebc27a5 | 315 | Lisp_Object Qsave_session; |
033b73e2 MA |
316 | #ifdef HAVE_DBUS |
317 | Lisp_Object Qdbus_event; | |
318 | #endif | |
637fa988 JD |
319 | Lisp_Object Qconfig_changed_event; |
320 | ||
284f4730 | 321 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
322 | |
323 | /* Properties of event headers. */ | |
324 | Lisp_Object Qevent_kind; | |
88cb0656 | 325 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 326 | |
d2bd5189 | 327 | /* menu and tool bar item parts */ |
598a9fa7 | 328 | Lisp_Object Qmenu_enable; |
74c1de23 | 329 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
d2bd5189 | 330 | Lisp_Object QCbutton, QCtoggle, QCradio, QClabel, QCvert_only; |
598a9fa7 | 331 | |
0a7f1fc0 JB |
332 | /* An event header symbol HEAD may have a property named |
333 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
334 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
335 | mask of modifiers applied to it. If present, this is used to help | |
336 | speed up parse_modifiers. */ | |
337 | Lisp_Object Qevent_symbol_element_mask; | |
338 | ||
339 | /* An unmodified event header BASE may have a property named | |
340 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
341 | modified versions of BASE. If present, this helps speed up | |
342 | apply_modifiers. */ | |
343 | Lisp_Object Qmodifier_cache; | |
344 | ||
5ec75a55 | 345 | /* Symbols to use for parts of windows. */ |
284f4730 | 346 | Lisp_Object Qmode_line; |
e5d77022 | 347 | Lisp_Object Qvertical_line; |
3c370943 | 348 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
349 | Lisp_Object Qmenu_bar; |
350 | ||
d3da34e0 JB |
351 | Lisp_Object recursive_edit_unwind (Lisp_Object buffer), command_loop (void); |
352 | Lisp_Object Fthis_command_keys (void); | |
03b4122a | 353 | Lisp_Object Qextended_command_history; |
d3da34e0 | 354 | EMACS_TIME timer_check (int do_it_now); |
284f4730 | 355 | |
d3da34e0 JB |
356 | static void record_menu_key (Lisp_Object c); |
357 | static int echo_length (void); | |
8eb4d8ef | 358 | |
f4eef8b4 RS |
359 | Lisp_Object Qpolling_period; |
360 | ||
87dd9b9b RS |
361 | /* Incremented whenever a timer is run. */ |
362 | int timers_run; | |
363 | ||
ffd56f97 JB |
364 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
365 | happens. */ | |
366 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
367 | |
368 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
369 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
370 | int interrupt_input; | |
371 | ||
372 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
373 | int interrupts_deferred; | |
374 | ||
284f4730 JB |
375 | /* Allow m- file to inhibit use of FIONREAD. */ |
376 | #ifdef BROKEN_FIONREAD | |
377 | #undef FIONREAD | |
378 | #endif | |
379 | ||
380 | /* We are unable to use interrupts if FIONREAD is not available, | |
381 | so flush SIGIO so we won't try. */ | |
fc7a70cc | 382 | #if !defined (FIONREAD) |
284f4730 JB |
383 | #ifdef SIGIO |
384 | #undef SIGIO | |
385 | #endif | |
386 | #endif | |
387 | ||
e98a93eb | 388 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 389 | to detect C-g. It isn't actually used when doing interrupt input. */ |
742fbed7 | 390 | #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS) |
284f4730 JB |
391 | #define POLL_FOR_INPUT |
392 | #endif | |
adf5cb9c | 393 | |
fdbb67fe GM |
394 | /* The time when Emacs started being idle. */ |
395 | ||
396 | static EMACS_TIME timer_idleness_start_time; | |
397 | ||
3021d3a9 RS |
398 | /* After Emacs stops being idle, this saves the last value |
399 | of timer_idleness_start_time from when it was idle. */ | |
400 | ||
401 | static EMACS_TIME timer_last_idleness_start_time; | |
402 | ||
284f4730 JB |
403 | \f |
404 | /* Global variable declarations. */ | |
405 | ||
a2d5fca0 JD |
406 | /* Flags for readable_events. */ |
407 | #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0) | |
408 | #define READABLE_EVENTS_FILTER_EVENTS (1 << 1) | |
409 | #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2) | |
410 | ||
284f4730 | 411 | /* Function for init_keyboard to call with no args (if nonzero). */ |
d2aa42f8 | 412 | void (*keyboard_init_hook) (void); |
284f4730 | 413 | |
f57e2426 J |
414 | static int read_avail_input (int); |
415 | static void get_input_pending (int *, int); | |
416 | static int readable_events (int); | |
417 | static Lisp_Object read_char_x_menu_prompt (int, Lisp_Object *, | |
418 | Lisp_Object, int *); | |
f57e2426 J |
419 | static Lisp_Object read_char_minibuf_menu_prompt (int, int, |
420 | Lisp_Object *); | |
421 | static Lisp_Object make_lispy_event (struct input_event *); | |
ae372f41 | 422 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f57e2426 J |
423 | static Lisp_Object make_lispy_movement (struct frame *, Lisp_Object, |
424 | enum scroll_bar_part, | |
425 | Lisp_Object, Lisp_Object, | |
426 | unsigned long); | |
514354e9 | 427 | #endif |
41118bd3 | 428 | static Lisp_Object modify_event_symbol (EMACS_INT, unsigned, Lisp_Object, |
24021b38 | 429 | Lisp_Object, const char *const *, |
f57e2426 J |
430 | Lisp_Object *, unsigned); |
431 | static Lisp_Object make_lispy_switch_frame (Lisp_Object); | |
432 | static void save_getcjmp (jmp_buf); | |
f57e2426 J |
433 | static void restore_getcjmp (jmp_buf); |
434 | static Lisp_Object apply_modifiers (int, Lisp_Object); | |
435 | static void clear_event (struct input_event *); | |
436 | static Lisp_Object restore_kboard_configuration (Lisp_Object); | |
437 | static SIGTYPE interrupt_signal (int signalnum); | |
361358ea | 438 | #ifdef SIGIO |
cb768704 | 439 | static SIGTYPE input_available_signal (int signo); |
361358ea | 440 | #endif |
f57e2426 J |
441 | static void handle_interrupt (void); |
442 | static void timer_start_idle (void); | |
443 | static void timer_stop_idle (void); | |
444 | static void timer_resume_idle (void); | |
445 | static SIGTYPE handle_user_signal (int); | |
446 | static char *find_user_signal_name (int); | |
447 | static int store_user_signal_events (void); | |
284f4730 | 448 | |
29204e13 | 449 | \f |
df0f2ba1 | 450 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
451 | C can be a character, which is printed prettily ("M-C-x" and all that |
452 | jazz), or a symbol, whose name is printed. */ | |
453 | ||
dfcf069d | 454 | void |
d3da34e0 | 455 | echo_char (Lisp_Object c) |
284f4730 | 456 | { |
c5fdd383 | 457 | if (current_kboard->immediate_echo) |
284f4730 | 458 | { |
678e9d18 GM |
459 | int size = KEY_DESCRIPTION_SIZE + 100; |
460 | char *buffer = (char *) alloca (size); | |
461 | char *ptr = buffer; | |
462 | Lisp_Object echo_string; | |
284f4730 | 463 | |
0d121f7c | 464 | echo_string = current_kboard->echo_string; |
c60ee5e7 | 465 | |
284f4730 | 466 | /* If someone has passed us a composite event, use its head symbol. */ |
88cb0656 | 467 | c = EVENT_HEAD (c); |
284f4730 | 468 | |
8c18cbfb | 469 | if (INTEGERP (c)) |
284f4730 | 470 | { |
678e9d18 | 471 | ptr = push_key_description (XINT (c), ptr, 1); |
284f4730 | 472 | } |
8c18cbfb | 473 | else if (SYMBOLP (c)) |
284f4730 | 474 | { |
1b049b51 KR |
475 | Lisp_Object name = SYMBOL_NAME (c); |
476 | int nbytes = SBYTES (name); | |
c60ee5e7 | 477 | |
0d121f7c | 478 | if (size - (ptr - buffer) < nbytes) |
678e9d18 GM |
479 | { |
480 | int offset = ptr - buffer; | |
0d121f7c | 481 | size = max (2 * size, size + nbytes); |
678e9d18 GM |
482 | buffer = (char *) alloca (size); |
483 | ptr = buffer + offset; | |
484 | } | |
485 | ||
1b049b51 KR |
486 | ptr += copy_text (SDATA (name), ptr, nbytes, |
487 | STRING_MULTIBYTE (name), 1); | |
284f4730 JB |
488 | } |
489 | ||
0d121f7c | 490 | if ((NILP (echo_string) || SCHARS (echo_string) == 0) |
ecb7cb34 | 491 | && help_char_p (c)) |
284f4730 | 492 | { |
678e9d18 GM |
493 | const char *text = " (Type ? for further options)"; |
494 | int len = strlen (text); | |
c60ee5e7 | 495 | |
678e9d18 GM |
496 | if (size - (ptr - buffer) < len) |
497 | { | |
498 | int offset = ptr - buffer; | |
499 | size += len; | |
500 | buffer = (char *) alloca (size); | |
501 | ptr = buffer + offset; | |
502 | } | |
503 | ||
72af86bd | 504 | memcpy (ptr, text, len); |
678e9d18 | 505 | ptr += len; |
284f4730 JB |
506 | } |
507 | ||
0d121f7c GM |
508 | /* Replace a dash from echo_dash with a space, otherwise |
509 | add a space at the end as a separator between keys. */ | |
678e9d18 | 510 | if (STRINGP (echo_string) |
2ff4d3d9 | 511 | && SCHARS (echo_string) > 1) |
0d121f7c | 512 | { |
2ff4d3d9 RS |
513 | Lisp_Object last_char, prev_char, idx; |
514 | ||
515 | idx = make_number (SCHARS (echo_string) - 2); | |
516 | prev_char = Faref (echo_string, idx); | |
0d121f7c GM |
517 | |
518 | idx = make_number (SCHARS (echo_string) - 1); | |
519 | last_char = Faref (echo_string, idx); | |
520 | ||
2ff4d3d9 RS |
521 | /* We test PREV_CHAR to make sure this isn't the echoing |
522 | of a minus-sign. */ | |
523 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') | |
0d121f7c GM |
524 | Faset (echo_string, idx, make_number (' ')); |
525 | else | |
526 | echo_string = concat2 (echo_string, build_string (" ")); | |
527 | } | |
c3be81c7 RS |
528 | else if (STRINGP (echo_string)) |
529 | echo_string = concat2 (echo_string, build_string (" ")); | |
678e9d18 GM |
530 | |
531 | current_kboard->echo_string | |
532 | = concat2 (echo_string, make_string (buffer, ptr - buffer)); | |
284f4730 | 533 | |
3dbd9ee4 | 534 | echo_now (); |
284f4730 JB |
535 | } |
536 | } | |
537 | ||
538 | /* Temporarily add a dash to the end of the echo string if it's not | |
539 | empty, so that it serves as a mini-prompt for the very next character. */ | |
540 | ||
dfcf069d | 541 | void |
d3da34e0 | 542 | echo_dash (void) |
284f4730 | 543 | { |
678e9d18 GM |
544 | /* Do nothing if not echoing at all. */ |
545 | if (NILP (current_kboard->echo_string)) | |
546 | return; | |
547 | ||
51b403bd CY |
548 | if (this_command_key_count == 0) |
549 | return; | |
550 | ||
c5fdd383 | 551 | if (!current_kboard->immediate_echo |
0d121f7c | 552 | && SCHARS (current_kboard->echo_string) == 0) |
284f4730 | 553 | return; |
c60ee5e7 | 554 | |
7a80a6f6 | 555 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 | 556 | if (current_kboard->echo_after_prompt |
0d121f7c | 557 | == SCHARS (current_kboard->echo_string)) |
4bafa972 | 558 | return; |
c60ee5e7 | 559 | |
366511da MB |
560 | /* Do nothing if we have already put a dash at the end. */ |
561 | if (SCHARS (current_kboard->echo_string) > 1) | |
562 | { | |
c3be81c7 | 563 | Lisp_Object last_char, prev_char, idx; |
366511da | 564 | |
c3be81c7 RS |
565 | idx = make_number (SCHARS (current_kboard->echo_string) - 2); |
566 | prev_char = Faref (current_kboard->echo_string, idx); | |
366511da | 567 | |
c3be81c7 RS |
568 | idx = make_number (SCHARS (current_kboard->echo_string) - 1); |
569 | last_char = Faref (current_kboard->echo_string, idx); | |
366511da | 570 | |
c3be81c7 RS |
571 | if (XINT (last_char) == '-' && XINT (prev_char) != ' ') |
572 | return; | |
366511da MB |
573 | } |
574 | ||
284f4730 JB |
575 | /* Put a dash at the end of the buffer temporarily, |
576 | but make it go away when the next character is added. */ | |
678e9d18 GM |
577 | current_kboard->echo_string = concat2 (current_kboard->echo_string, |
578 | build_string ("-")); | |
3dbd9ee4 | 579 | echo_now (); |
284f4730 JB |
580 | } |
581 | ||
582 | /* Display the current echo string, and begin echoing if not already | |
583 | doing so. */ | |
584 | ||
07a59269 | 585 | void |
d3da34e0 | 586 | echo_now (void) |
284f4730 | 587 | { |
c5fdd383 | 588 | if (!current_kboard->immediate_echo) |
284f4730 JB |
589 | { |
590 | int i; | |
c5fdd383 | 591 | current_kboard->immediate_echo = 1; |
284f4730 JB |
592 | |
593 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
594 | { |
595 | Lisp_Object c; | |
22b94eeb RS |
596 | |
597 | /* Set before_command_echo_length to the value that would | |
598 | have been saved before the start of this subcommand in | |
599 | command_loop_1, if we had already been echoing then. */ | |
600 | if (i == this_single_command_key_start) | |
601 | before_command_echo_length = echo_length (); | |
602 | ||
d0a57728 RS |
603 | c = XVECTOR (this_command_keys)->contents[i]; |
604 | if (! (EVENT_HAS_PARAMETERS (c) | |
605 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
606 | echo_char (c); | |
607 | } | |
22b94eeb RS |
608 | |
609 | /* Set before_command_echo_length to the value that would | |
610 | have been saved before the start of this subcommand in | |
611 | command_loop_1, if we had already been echoing then. */ | |
612 | if (this_command_key_count == this_single_command_key_start) | |
613 | before_command_echo_length = echo_length (); | |
614 | ||
615 | /* Put a dash at the end to invite the user to type more. */ | |
284f4730 JB |
616 | echo_dash (); |
617 | } | |
618 | ||
619 | echoing = 1; | |
678e9d18 | 620 | message3_nolog (current_kboard->echo_string, |
0d121f7c | 621 | SBYTES (current_kboard->echo_string), |
d5db4077 | 622 | STRING_MULTIBYTE (current_kboard->echo_string)); |
284f4730 JB |
623 | echoing = 0; |
624 | ||
59a84f8e GM |
625 | /* Record in what buffer we echoed, and from which kboard. */ |
626 | echo_message_buffer = echo_area_buffer[0]; | |
627 | echo_kboard = current_kboard; | |
628 | ||
284f4730 JB |
629 | if (waiting_for_input && !NILP (Vquit_flag)) |
630 | quit_throw_to_read_char (); | |
631 | } | |
632 | ||
633 | /* Turn off echoing, for the start of a new command. */ | |
634 | ||
dfcf069d | 635 | void |
d3da34e0 | 636 | cancel_echoing (void) |
284f4730 | 637 | { |
c5fdd383 | 638 | current_kboard->immediate_echo = 0; |
c5fdd383 | 639 | current_kboard->echo_after_prompt = -1; |
678e9d18 | 640 | current_kboard->echo_string = Qnil; |
59a84f8e GM |
641 | ok_to_echo_at_next_pause = NULL; |
642 | echo_kboard = NULL; | |
643 | echo_message_buffer = Qnil; | |
284f4730 JB |
644 | } |
645 | ||
646 | /* Return the length of the current echo string. */ | |
647 | ||
648 | static int | |
d3da34e0 | 649 | echo_length (void) |
284f4730 | 650 | { |
678e9d18 | 651 | return (STRINGP (current_kboard->echo_string) |
0d121f7c | 652 | ? SCHARS (current_kboard->echo_string) |
678e9d18 | 653 | : 0); |
284f4730 JB |
654 | } |
655 | ||
656 | /* Truncate the current echo message to its first LEN chars. | |
657 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 658 | switches frames while entering a key sequence. */ |
284f4730 JB |
659 | |
660 | static void | |
41118bd3 | 661 | echo_truncate (EMACS_INT nchars) |
678e9d18 GM |
662 | { |
663 | if (STRINGP (current_kboard->echo_string)) | |
664 | current_kboard->echo_string | |
665 | = Fsubstring (current_kboard->echo_string, | |
666 | make_number (0), make_number (nchars)); | |
667 | truncate_echo_area (nchars); | |
284f4730 JB |
668 | } |
669 | ||
670 | \f | |
671 | /* Functions for manipulating this_command_keys. */ | |
672 | static void | |
d3da34e0 | 673 | add_command_key (Lisp_Object key) |
284f4730 | 674 | { |
22b94eeb RS |
675 | #if 0 /* Not needed after we made Freset_this_command_lengths |
676 | do the job immediately. */ | |
71918b75 RS |
677 | /* If reset-this-command-length was called recently, obey it now. |
678 | See the doc string of that function for an explanation of why. */ | |
679 | if (before_command_restore_flag) | |
680 | { | |
681 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
682 | if (this_command_key_count < this_single_command_key_start) |
683 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
684 | echo_truncate (before_command_echo_length_1); |
685 | before_command_restore_flag = 0; | |
686 | } | |
22b94eeb | 687 | #endif |
71918b75 | 688 | |
f4e05d97 GM |
689 | if (this_command_key_count >= ASIZE (this_command_keys)) |
690 | this_command_keys = larger_vector (this_command_keys, | |
691 | 2 * ASIZE (this_command_keys), | |
692 | Qnil); | |
6569cc8d | 693 | |
b1ebcadb | 694 | ASET (this_command_keys, this_command_key_count, key); |
f4e05d97 | 695 | ++this_command_key_count; |
284f4730 | 696 | } |
f4e05d97 | 697 | |
284f4730 JB |
698 | \f |
699 | Lisp_Object | |
d3da34e0 | 700 | recursive_edit_1 (void) |
284f4730 | 701 | { |
aed13378 | 702 | int count = SPECPDL_INDEX (); |
284f4730 JB |
703 | Lisp_Object val; |
704 | ||
705 | if (command_loop_level > 0) | |
706 | { | |
707 | specbind (Qstandard_output, Qt); | |
708 | specbind (Qstandard_input, Qt); | |
709 | } | |
710 | ||
d148e14d | 711 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f | 712 | /* The command loop has started an hourglass timer, so we have to |
84265027 | 713 | cancel it here, otherwise it will fire because the recursive edit |
d8e2d5ba PJ |
714 | can take some time. Do not check for display_hourglass_p here, |
715 | because it could already be nil. */ | |
526a058f | 716 | cancel_hourglass (); |
84265027 GM |
717 | #endif |
718 | ||
980a2d69 GM |
719 | /* This function may have been called from a debugger called from |
720 | within redisplay, for instance by Edebugging a function called | |
721 | from fontification-functions. We want to allow redisplay in | |
722 | the debugging session. | |
723 | ||
724 | The recursive edit is left with a `(throw exit ...)'. The `exit' | |
725 | tag is not caught anywhere in redisplay, i.e. when we leave the | |
726 | recursive edit, the original redisplay leading to the recursive | |
727 | edit will be unwound. The outcome should therefore be safe. */ | |
728 | specbind (Qinhibit_redisplay, Qnil); | |
729 | redisplaying_p = 0; | |
730 | ||
284f4730 JB |
731 | val = command_loop (); |
732 | if (EQ (val, Qt)) | |
733 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
734 | /* Handle throw from read_minibuf when using minibuffer |
735 | while it's active but we're in another window. */ | |
736 | if (STRINGP (val)) | |
43cae48c | 737 | xsignal1 (Qerror, val); |
284f4730 | 738 | |
cb5df6ae | 739 | return unbind_to (count, Qnil); |
284f4730 JB |
740 | } |
741 | ||
742 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 743 | |
07a59269 | 744 | void |
d3da34e0 | 745 | record_auto_save (void) |
284f4730 | 746 | { |
c43b1734 | 747 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 748 | } |
5846638c RS |
749 | |
750 | /* Make an auto save happen as soon as possible at command level. */ | |
751 | ||
dfcf069d | 752 | void |
d3da34e0 | 753 | force_auto_save_soon (void) |
5846638c RS |
754 | { |
755 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
756 | |
757 | record_asynch_buffer_change (); | |
5846638c | 758 | } |
284f4730 | 759 | \f |
284f4730 | 760 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
4707d2d0 PJ |
761 | doc: /* Invoke the editor command loop recursively. |
762 | To get out of the recursive edit, a command can do `(throw 'exit nil)'; | |
763 | that tells this function to return. | |
6e604a9b | 764 | Alternatively, `(throw 'exit t)' makes this function signal an error. |
4707d2d0 | 765 | This function is called by the editor initialization to begin editing. */) |
5842a27b | 766 | (void) |
284f4730 | 767 | { |
aed13378 | 768 | int count = SPECPDL_INDEX (); |
9ce50b1e | 769 | Lisp_Object buffer; |
284f4730 | 770 | |
96edd5d4 KS |
771 | /* If we enter while input is blocked, don't lock up here. |
772 | This may happen through the debugger during redisplay. */ | |
773 | if (INPUT_BLOCKED_P) | |
774 | return Qnil; | |
775 | ||
284f4730 JB |
776 | command_loop_level++; |
777 | update_mode_lines = 1; | |
778 | ||
9ce50b1e GM |
779 | if (command_loop_level |
780 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
781 | buffer = Fcurrent_buffer (); | |
782 | else | |
783 | buffer = Qnil; | |
784 | ||
785 | /* If we leave recursive_edit_1 below with a `throw' for instance, | |
786 | like it is done in the splash screen display, we have to | |
787 | make sure that we restore single_kboard as command_loop_1 | |
788 | would have done if it were left normally. */ | |
b3e6f69c KL |
789 | if (command_loop_level > 0) |
790 | temporarily_switch_to_single_kboard (SELECTED_FRAME ()); | |
256c9c3a | 791 | record_unwind_protect (recursive_edit_unwind, buffer); |
9ce50b1e | 792 | |
284f4730 JB |
793 | recursive_edit_1 (); |
794 | return unbind_to (count, Qnil); | |
795 | } | |
796 | ||
797 | Lisp_Object | |
d3da34e0 | 798 | recursive_edit_unwind (Lisp_Object buffer) |
284f4730 | 799 | { |
256c9c3a KL |
800 | if (BUFFERP (buffer)) |
801 | Fset_buffer (buffer); | |
c60ee5e7 | 802 | |
284f4730 JB |
803 | command_loop_level--; |
804 | update_mode_lines = 1; | |
805 | return Qnil; | |
806 | } | |
9ce50b1e | 807 | |
284f4730 | 808 | \f |
b3e6f69c KL |
809 | #if 0 /* These two functions are now replaced with |
810 | temporarily_switch_to_single_kboard. */ | |
604ccd1d | 811 | static void |
1e8bd3da | 812 | any_kboard_state () |
604ccd1d | 813 | { |
1e8bd3da RS |
814 | #if 0 /* Theory: if there's anything in Vunread_command_events, |
815 | it will right away be read by read_key_sequence, | |
816 | and then if we do switch KBOARDS, it will go into the side | |
817 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 818 | if (CONSP (Vunread_command_events)) |
4524b161 | 819 | { |
c5fdd383 KH |
820 | current_kboard->kbd_queue |
821 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
822 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 823 | } |
604ccd1d | 824 | Vunread_command_events = Qnil; |
1e8bd3da RS |
825 | #endif |
826 | single_kboard = 0; | |
604ccd1d | 827 | } |
1e8bd3da RS |
828 | |
829 | /* Switch to the single-kboard state, making current_kboard | |
830 | the only KBOARD from which further input is accepted. */ | |
831 | ||
832 | void | |
833 | single_kboard_state () | |
834 | { | |
1e8bd3da | 835 | single_kboard = 1; |
1e8bd3da | 836 | } |
b3e6f69c | 837 | #endif |
1e8bd3da | 838 | |
0c1c1b93 RS |
839 | /* If we're in single_kboard state for kboard KBOARD, |
840 | get out of it. */ | |
841 | ||
842 | void | |
d3da34e0 | 843 | not_single_kboard_state (KBOARD *kboard) |
0c1c1b93 RS |
844 | { |
845 | if (kboard == current_kboard) | |
846 | single_kboard = 0; | |
847 | } | |
848 | ||
1e8bd3da RS |
849 | /* Maintain a stack of kboards, so other parts of Emacs |
850 | can switch temporarily to the kboard of a given frame | |
851 | and then revert to the previous status. */ | |
852 | ||
853 | struct kboard_stack | |
854 | { | |
855 | KBOARD *kboard; | |
856 | struct kboard_stack *next; | |
857 | }; | |
858 | ||
859 | static struct kboard_stack *kboard_stack; | |
860 | ||
861 | void | |
d3da34e0 | 862 | push_kboard (struct kboard *k) |
1e8bd3da RS |
863 | { |
864 | struct kboard_stack *p | |
865 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
866 | ||
867 | p->next = kboard_stack; | |
868 | p->kboard = current_kboard; | |
869 | kboard_stack = p; | |
870 | ||
256c9c3a | 871 | current_kboard = k; |
1e8bd3da RS |
872 | } |
873 | ||
874 | void | |
d3da34e0 | 875 | pop_kboard (void) |
1e8bd3da | 876 | { |
6ed8eeff | 877 | struct terminal *t; |
1e8bd3da | 878 | struct kboard_stack *p = kboard_stack; |
24f9525b | 879 | int found = 0; |
6ed8eeff | 880 | for (t = terminal_list; t; t = t->next_terminal) |
3fb8e5d7 | 881 | { |
6ed8eeff | 882 | if (t->kboard == p->kboard) |
3fb8e5d7 KL |
883 | { |
884 | current_kboard = p->kboard; | |
24f9525b | 885 | found = 1; |
3fb8e5d7 KL |
886 | break; |
887 | } | |
888 | } | |
24f9525b | 889 | if (!found) |
3fb8e5d7 | 890 | { |
6ed8eeff | 891 | /* The terminal we remembered has been deleted. */ |
3fb8e5d7 | 892 | current_kboard = FRAME_KBOARD (SELECTED_FRAME ()); |
b3e6f69c | 893 | single_kboard = 0; |
3fb8e5d7 | 894 | } |
1e8bd3da RS |
895 | kboard_stack = p->next; |
896 | xfree (p); | |
897 | } | |
256c9c3a | 898 | |
b3e6f69c KL |
899 | /* Switch to single_kboard mode, making current_kboard the only KBOARD |
900 | from which further input is accepted. If F is non-nil, set its | |
901 | KBOARD as the current keyboard. | |
902 | ||
903 | This function uses record_unwind_protect to return to the previous | |
904 | state later. | |
905 | ||
906 | If Emacs is already in single_kboard mode, and F's keyboard is | |
907 | locked, then this function will throw an errow. */ | |
256c9c3a KL |
908 | |
909 | void | |
d3da34e0 | 910 | temporarily_switch_to_single_kboard (struct frame *f) |
256c9c3a | 911 | { |
256c9c3a | 912 | int was_locked = single_kboard; |
24f9525b KL |
913 | if (was_locked) |
914 | { | |
b3e6f69c KL |
915 | if (f != NULL && FRAME_KBOARD (f) != current_kboard) |
916 | /* We can not switch keyboards while in single_kboard mode. | |
251bc578 KL |
917 | In rare cases, Lisp code may call `recursive-edit' (or |
918 | `read-minibuffer' or `y-or-n-p') after it switched to a | |
919 | locked frame. For example, this is likely to happen | |
920 | when server.el connects to a new terminal while Emacs is in | |
921 | single_kboard mode. It is best to throw an error instead | |
922 | of presenting the user with a frozen screen. */ | |
b3e6f69c KL |
923 | error ("Terminal %d is locked, cannot read from it", |
924 | FRAME_TERMINAL (f)->id); | |
24f9525b | 925 | else |
b3e6f69c KL |
926 | /* This call is unnecessary, but helps |
927 | `restore_kboard_configuration' discover if somebody changed | |
928 | `current_kboard' behind our back. */ | |
24f9525b KL |
929 | push_kboard (current_kboard); |
930 | } | |
b3e6f69c KL |
931 | else if (f != NULL) |
932 | current_kboard = FRAME_KBOARD (f); | |
933 | single_kboard = 1; | |
256c9c3a KL |
934 | record_unwind_protect (restore_kboard_configuration, |
935 | (was_locked ? Qt : Qnil)); | |
256c9c3a KL |
936 | } |
937 | ||
b3e6f69c | 938 | #if 0 /* This function is not needed anymore. */ |
256c9c3a KL |
939 | void |
940 | record_single_kboard_state () | |
941 | { | |
24f9525b KL |
942 | if (single_kboard) |
943 | push_kboard (current_kboard); | |
256c9c3a KL |
944 | record_unwind_protect (restore_kboard_configuration, |
945 | (single_kboard ? Qt : Qnil)); | |
946 | } | |
b3e6f69c | 947 | #endif |
256c9c3a KL |
948 | |
949 | static Lisp_Object | |
d3da34e0 | 950 | restore_kboard_configuration (Lisp_Object was_locked) |
256c9c3a | 951 | { |
256c9c3a | 952 | if (NILP (was_locked)) |
b3e6f69c | 953 | single_kboard = 0; |
256c9c3a | 954 | else |
24f9525b | 955 | { |
b3e6f69c KL |
956 | struct kboard *prev = current_kboard; |
957 | single_kboard = 1; | |
24f9525b | 958 | pop_kboard (); |
b3e6f69c KL |
959 | /* The pop should not change the kboard. */ |
960 | if (single_kboard && current_kboard != prev) | |
961 | abort (); | |
24f9525b | 962 | } |
256c9c3a KL |
963 | return Qnil; |
964 | } | |
e2dc7ae5 | 965 | |
1e8bd3da RS |
966 | \f |
967 | /* Handle errors that are not handled at inner levels | |
968 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 969 | |
284f4730 | 970 | Lisp_Object |
d3da34e0 | 971 | cmd_error (Lisp_Object data) |
a1341f75 | 972 | { |
a9f16aa9 | 973 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
974 | char macroerror[50]; |
975 | ||
d148e14d | 976 | #ifdef HAVE_WINDOW_SYSTEM |
160552c5 RS |
977 | if (display_hourglass_p) |
978 | cancel_hourglass (); | |
979 | #endif | |
980 | ||
649d952d | 981 | if (!NILP (executing_kbd_macro)) |
e881d8b2 | 982 | { |
649d952d | 983 | if (executing_kbd_macro_iterations == 1) |
e881d8b2 RS |
984 | sprintf (macroerror, "After 1 kbd macro iteration: "); |
985 | else | |
986 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
649d952d | 987 | executing_kbd_macro_iterations); |
e881d8b2 RS |
988 | } |
989 | else | |
990 | *macroerror = 0; | |
a9f16aa9 | 991 | |
a1341f75 RS |
992 | Vstandard_output = Qt; |
993 | Vstandard_input = Qt; | |
ce0d2858 | 994 | Vexecuting_kbd_macro = Qnil; |
649d952d | 995 | executing_kbd_macro = Qnil; |
d8bcf58e | 996 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 997 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 998 | cancel_echoing (); |
a9f16aa9 KH |
999 | |
1000 | /* Avoid unquittable loop if data contains a circular list. */ | |
1001 | old_level = Vprint_level; | |
1002 | old_length = Vprint_length; | |
0c04a67e RS |
1003 | XSETFASTINT (Vprint_level, 10); |
1004 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1005 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1006 | Vprint_level = old_level; |
1007 | Vprint_length = old_length; | |
a1341f75 RS |
1008 | |
1009 | Vquit_flag = Qnil; | |
1010 | ||
1011 | Vinhibit_quit = Qnil; | |
b3e6f69c | 1012 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
e3ee34f0 RS |
1013 | if (command_loop_level == 0 && minibuf_level == 0) |
1014 | any_kboard_state (); | |
ff4b06d3 | 1015 | #endif |
a1341f75 RS |
1016 | |
1017 | return make_number (0); | |
1018 | } | |
1019 | ||
301738ed RS |
1020 | /* Take actions on handling an error. DATA is the data that describes |
1021 | the error. | |
1022 | ||
1023 | CONTEXT is a C-string containing ASCII characters only which | |
1024 | describes the context in which the error happened. If we need to | |
1025 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1026 | string. */ | |
1027 | ||
07a59269 | 1028 | void |
a8fe7202 | 1029 | cmd_error_internal (Lisp_Object data, const char *context) |
284f4730 | 1030 | { |
788f89eb | 1031 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 1032 | |
04d8c47d RS |
1033 | /* The immediate context is not interesting for Quits, |
1034 | since they are asyncronous. */ | |
1035 | if (EQ (XCAR (data), Qquit)) | |
1036 | Vsignaling_function = Qnil; | |
1037 | ||
284f4730 JB |
1038 | Vquit_flag = Qnil; |
1039 | Vinhibit_quit = Qt; | |
284f4730 | 1040 | |
04d8c47d RS |
1041 | /* Use user's specified output function if any. */ |
1042 | if (!NILP (Vcommand_error_function)) | |
1043 | call3 (Vcommand_error_function, data, | |
fcd69a29 | 1044 | context ? build_string (context) : empty_unibyte_string, |
04d8c47d | 1045 | Vsignaling_function); |
ff11dfa1 | 1046 | /* If the window system or terminal frame hasn't been initialized |
04d8c47d RS |
1047 | yet, or we're not interactive, write the message to stderr and exit. */ |
1048 | else if (!sf->glyphs_initialized_p | |
0dad7c6f JR |
1049 | /* The initial frame is a special non-displaying frame. It |
1050 | will be current in daemon mode when there are no frames | |
1051 | to display, and in non-daemon mode before the real frame | |
1052 | has finished initializing. If an error is thrown in the | |
1053 | latter case while creating the frame, then the frame | |
1054 | will never be displayed, so the safest thing to do is | |
1055 | write to stderr and quit. In daemon mode, there are | |
1056 | many other potential errors that do not prevent frames | |
1057 | from being created, so continuing as normal is better in | |
1058 | that case. */ | |
1059 | || (!IS_DAEMON && FRAME_INITIAL_P (sf)) | |
04d8c47d RS |
1060 | || noninteractive) |
1061 | { | |
1062 | print_error_message (data, Qexternal_debugging_output, | |
1063 | context, Vsignaling_function); | |
1064 | Fterpri (Qexternal_debugging_output); | |
1065 | Fkill_emacs (make_number (-1)); | |
7ee32cda | 1066 | } |
284f4730 JB |
1067 | else |
1068 | { | |
04d8c47d | 1069 | clear_message (1, 0); |
284f4730 | 1070 | Fdiscard_input (); |
dc4854ce | 1071 | message_log_maybe_newline (); |
284f4730 | 1072 | bitch_at_user (); |
c60ee5e7 | 1073 | |
04d8c47d RS |
1074 | print_error_message (data, Qt, context, Vsignaling_function); |
1075 | } | |
a1341f75 | 1076 | |
dc4854ce | 1077 | Vsignaling_function = Qnil; |
284f4730 JB |
1078 | } |
1079 | \f | |
d3da34e0 JB |
1080 | Lisp_Object command_loop_1 (void); |
1081 | Lisp_Object command_loop_2 (Lisp_Object); | |
1082 | Lisp_Object top_level_1 (Lisp_Object); | |
284f4730 JB |
1083 | |
1084 | /* Entry to editor-command-loop. | |
1085 | This level has the catches for exiting/returning to editor command loop. | |
1086 | It returns nil to exit recursive edit, t to abort it. */ | |
1087 | ||
1088 | Lisp_Object | |
d3da34e0 | 1089 | command_loop (void) |
284f4730 JB |
1090 | { |
1091 | if (command_loop_level > 0 || minibuf_level > 0) | |
1092 | { | |
07ba902e RS |
1093 | Lisp_Object val; |
1094 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
649d952d | 1095 | executing_kbd_macro = Qnil; |
68c46464 | 1096 | return val; |
284f4730 JB |
1097 | } |
1098 | else | |
1099 | while (1) | |
1100 | { | |
1101 | internal_catch (Qtop_level, top_level_1, Qnil); | |
b3e6f69c | 1102 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
c98e2d50 KL |
1103 | /* Reset single_kboard in case top-level set it while |
1104 | evaluating an -f option, or we are stuck there for some | |
1105 | other reason. */ | |
1106 | any_kboard_state (); | |
b3e6f69c | 1107 | #endif |
284f4730 | 1108 | internal_catch (Qtop_level, command_loop_2, Qnil); |
649d952d | 1109 | executing_kbd_macro = Qnil; |
df0f2ba1 | 1110 | |
284f4730 JB |
1111 | /* End of file in -batch run causes exit here. */ |
1112 | if (noninteractive) | |
1113 | Fkill_emacs (Qt); | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | /* Here we catch errors in execution of commands within the | |
1118 | editing loop, and reenter the editing loop. | |
1119 | When there is an error, cmd_error runs and returns a non-nil | |
27fd22dc | 1120 | value to us. A value of nil means that command_loop_1 itself |
284f4730 JB |
1121 | returned due to end of file (or end of kbd macro). */ |
1122 | ||
1123 | Lisp_Object | |
d3da34e0 | 1124 | command_loop_2 (Lisp_Object ignore) |
284f4730 JB |
1125 | { |
1126 | register Lisp_Object val; | |
1127 | ||
1128 | do | |
1129 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1130 | while (!NILP (val)); | |
1131 | ||
1132 | return Qnil; | |
1133 | } | |
1134 | ||
1135 | Lisp_Object | |
d3da34e0 | 1136 | top_level_2 (void) |
284f4730 JB |
1137 | { |
1138 | return Feval (Vtop_level); | |
1139 | } | |
1140 | ||
1141 | Lisp_Object | |
d3da34e0 | 1142 | top_level_1 (Lisp_Object ignore) |
284f4730 JB |
1143 | { |
1144 | /* On entry to the outer level, run the startup file */ | |
1145 | if (!NILP (Vtop_level)) | |
1146 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1147 | else if (!NILP (Vpurify_flag)) | |
1148 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1149 | else | |
1150 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1151 | return Qnil; | |
1152 | } | |
1153 | ||
1154 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
9252e0c0 CY |
1155 | doc: /* Exit all recursive editing levels. |
1156 | This also exits all active minibuffers. */) | |
5842a27b | 1157 | (void) |
284f4730 | 1158 | { |
d148e14d | 1159 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
1160 | if (display_hourglass_p) |
1161 | cancel_hourglass (); | |
2c9cf2c8 | 1162 | #endif |
96edd5d4 | 1163 | |
a25e44b2 JD |
1164 | /* Unblock input if we enter with input blocked. This may happen if |
1165 | redisplay traps e.g. during tool-bar update with input blocked. */ | |
1166 | while (INPUT_BLOCKED_P) | |
1167 | UNBLOCK_INPUT; | |
1168 | ||
977105dc | 1169 | Fthrow (Qtop_level, Qnil); |
284f4730 JB |
1170 | } |
1171 | ||
1172 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
4707d2d0 | 1173 | doc: /* Exit from the innermost recursive edit or minibuffer. */) |
5842a27b | 1174 | (void) |
284f4730 JB |
1175 | { |
1176 | if (command_loop_level > 0 || minibuf_level > 0) | |
1177 | Fthrow (Qexit, Qnil); | |
1178 | ||
1179 | error ("No recursive edit is in progress"); | |
1180 | } | |
1181 | ||
1182 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
4707d2d0 | 1183 | doc: /* Abort the command that requested this recursive edit or minibuffer input. */) |
5842a27b | 1184 | (void) |
284f4730 JB |
1185 | { |
1186 | if (command_loop_level > 0 || minibuf_level > 0) | |
1187 | Fthrow (Qexit, Qt); | |
1188 | ||
1189 | error ("No recursive edit is in progress"); | |
1190 | } | |
1191 | \f | |
ae372f41 | 1192 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c5b76d6c CY |
1193 | |
1194 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use | |
1195 | of this function. */ | |
1196 | ||
1197 | static Lisp_Object | |
d3da34e0 | 1198 | tracking_off (Lisp_Object old_value) |
c5b76d6c CY |
1199 | { |
1200 | do_mouse_tracking = old_value; | |
1201 | if (NILP (old_value)) | |
1202 | { | |
1203 | /* Redisplay may have been preempted because there was input | |
1204 | available, and it assumes it will be called again after the | |
1205 | input has been processed. If the only input available was | |
1206 | the sort that we have just disabled, then we need to call | |
1207 | redisplay. */ | |
1208 | if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW)) | |
1209 | { | |
1210 | redisplay_preserve_echo_area (6); | |
1211 | get_input_pending (&input_pending, | |
1212 | READABLE_EVENTS_DO_TIMERS_NOW); | |
1213 | } | |
1214 | } | |
1215 | return Qnil; | |
1216 | } | |
1217 | ||
1218 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
1219 | doc: /* Evaluate BODY with mouse movement events enabled. | |
1220 | Within a `track-mouse' form, mouse motion generates input events that | |
1221 | you can read with `read-event'. | |
1222 | Normally, mouse motion is ignored. | |
d514369d | 1223 | usage: (track-mouse BODY...) */) |
5842a27b | 1224 | (Lisp_Object args) |
c5b76d6c CY |
1225 | { |
1226 | int count = SPECPDL_INDEX (); | |
1227 | Lisp_Object val; | |
1228 | ||
1229 | record_unwind_protect (tracking_off, do_mouse_tracking); | |
1230 | ||
1231 | do_mouse_tracking = Qt; | |
1232 | ||
1233 | val = Fprogn (args); | |
1234 | return unbind_to (count, val); | |
1235 | } | |
1236 | ||
1237 | /* If mouse has moved on some frame, return one of those frames. | |
3b0cdcef KS |
1238 | |
1239 | Return 0 otherwise. | |
1240 | ||
1241 | If ignore_mouse_drag_p is non-zero, ignore (implicit) mouse movement | |
1242 | after resizing the tool-bar window. */ | |
1243 | ||
1244 | int ignore_mouse_drag_p; | |
c5b76d6c CY |
1245 | |
1246 | static FRAME_PTR | |
d3da34e0 | 1247 | some_mouse_moved (void) |
c5b76d6c CY |
1248 | { |
1249 | Lisp_Object tail, frame; | |
1250 | ||
3b0cdcef KS |
1251 | if (ignore_mouse_drag_p) |
1252 | { | |
e2bb07db | 1253 | /* ignore_mouse_drag_p = 0; */ |
3b0cdcef KS |
1254 | return 0; |
1255 | } | |
1256 | ||
c5b76d6c CY |
1257 | FOR_EACH_FRAME (tail, frame) |
1258 | { | |
1259 | if (XFRAME (frame)->mouse_moved) | |
1260 | return XFRAME (frame); | |
1261 | } | |
1262 | ||
1263 | return 0; | |
1264 | } | |
1265 | ||
ae372f41 | 1266 | #endif /* HAVE_MOUSE || HAVE_GPM */ |
c5b76d6c | 1267 | \f |
284f4730 JB |
1268 | /* This is the actual command reading loop, |
1269 | sans error-handling encapsulation. */ | |
1270 | ||
f57e2426 J |
1271 | static int read_key_sequence (Lisp_Object *, int, Lisp_Object, |
1272 | int, int, int); | |
1273 | void safe_run_hooks (Lisp_Object); | |
41118bd3 | 1274 | static void adjust_point_for_property (EMACS_INT, int); |
284f4730 | 1275 | |
0af912f0 JD |
1276 | /* Cancel hourglass from protect_unwind. |
1277 | ARG is not used. */ | |
d148e14d | 1278 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 | 1279 | static Lisp_Object |
d3da34e0 | 1280 | cancel_hourglass_unwind (Lisp_Object arg) |
0af912f0 JD |
1281 | { |
1282 | cancel_hourglass (); | |
3a0ae1f3 | 1283 | return Qnil; |
0af912f0 | 1284 | } |
bb8db7e1 | 1285 | #endif |
0af912f0 | 1286 | |
b819f760 SM |
1287 | /* FIXME: This is wrong rather than test window-system, we should call |
1288 | a new set-selection, which will then dispatch to x-set-selection, or | |
1289 | tty-set-selection, or w32-set-selection, ... */ | |
1290 | EXFUN (Fwindow_system, 1); | |
1291 | ||
284f4730 | 1292 | Lisp_Object |
d3da34e0 | 1293 | command_loop_1 (void) |
284f4730 | 1294 | { |
03cee6ae | 1295 | Lisp_Object cmd; |
284f4730 JB |
1296 | Lisp_Object keybuf[30]; |
1297 | int i; | |
a53fe666 | 1298 | int prev_modiff = 0; |
8c907a56 | 1299 | struct buffer *prev_buffer = NULL; |
b3e6f69c | 1300 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
1e8bd3da | 1301 | int was_locked = single_kboard; |
033b73e2 | 1302 | #endif |
80d4c824 | 1303 | int already_adjusted = 0; |
284f4730 | 1304 | |
d9b641bb | 1305 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1306 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1307 | Vdeactivate_mark = Qnil; |
284f4730 | 1308 | waiting_for_input = 0; |
df0f2ba1 | 1309 | cancel_echoing (); |
284f4730 | 1310 | |
284f4730 | 1311 | this_command_key_count = 0; |
63020c46 | 1312 | this_command_key_count_reset = 0; |
6321824f | 1313 | this_single_command_key_start = 0; |
284f4730 | 1314 | |
325309f5 | 1315 | if (NILP (Vmemory_full)) |
59aadc81 | 1316 | { |
10ffcb64 RS |
1317 | /* Make sure this hook runs after commands that get errors and |
1318 | throw to top level. */ | |
1319 | /* Note that the value cell will never directly contain nil | |
1320 | if the symbol is a local variable. */ | |
1321 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1322 | safe_run_hooks (Qpost_command_hook); | |
1323 | ||
1324 | /* If displaying a message, resize the echo area window to fit | |
1325 | that message's size exactly. */ | |
1326 | if (!NILP (echo_area_buffer[0])) | |
1327 | resize_echo_area_exactly (); | |
1328 | ||
1329 | if (!NILP (Vdeferred_action_list)) | |
0b5d283f | 1330 | safe_run_hooks (Qdeferred_action_function); |
59aadc81 RS |
1331 | } |
1332 | ||
51d5a2c9 | 1333 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1334 | current_kboard->Vlast_command = Vthis_command; |
1335 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1336 | if (!CONSP (last_command_event)) |
d0d3a311 | 1337 | current_kboard->Vlast_repeatable_command = real_this_command; |
51d5a2c9 | 1338 | |
284f4730 JB |
1339 | while (1) |
1340 | { | |
788f89eb | 1341 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1342 | Fkill_emacs (Qnil); |
1343 | ||
284f4730 JB |
1344 | /* Make sure the current window's buffer is selected. */ |
1345 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1346 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1347 | ||
1348 | /* Display any malloc warning that just came out. Use while because | |
1349 | displaying one warning can cause another. */ | |
1350 | ||
1351 | while (pending_malloc_warning) | |
1352 | display_malloc_warning (); | |
1353 | ||
86e5706b RS |
1354 | Vdeactivate_mark = Qnil; |
1355 | ||
284f4730 | 1356 | /* If minibuffer on and echo area in use, |
00392ce6 | 1357 | wait a short time and redraw minibuffer. */ |
284f4730 | 1358 | |
7ee32cda | 1359 | if (minibuf_level |
985f9f66 | 1360 | && !NILP (echo_area_buffer[0]) |
6a8128ef CY |
1361 | && EQ (minibuf_window, echo_area_window) |
1362 | && NUMBERP (Vminibuffer_message_timeout)) | |
284f4730 | 1363 | { |
f1bed6d8 RS |
1364 | /* Bind inhibit-quit to t so that C-g gets read in |
1365 | rather than quitting back to the minibuffer. */ | |
aed13378 | 1366 | int count = SPECPDL_INDEX (); |
f1bed6d8 | 1367 | specbind (Qinhibit_quit, Qt); |
f1bed6d8 | 1368 | |
6a8128ef | 1369 | sit_for (Vminibuffer_message_timeout, 0, 2); |
666dc232 | 1370 | |
e6aa7813 | 1371 | /* Clear the echo area. */ |
301738ed | 1372 | message2 (0, 0, 0); |
cdb9d665 | 1373 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1374 | |
db08707d RS |
1375 | unbind_to (count, Qnil); |
1376 | ||
e6aa7813 | 1377 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1378 | if (!NILP (Vquit_flag)) |
1379 | { | |
1380 | Vquit_flag = Qnil; | |
24597608 | 1381 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1382 | } |
1383 | } | |
1384 | ||
8f805655 | 1385 | #if 0 |
8f805655 JB |
1386 | /* Select the frame that the last event came from. Usually, |
1387 | switch-frame events will take care of this, but if some lisp | |
1388 | code swallows a switch-frame event, we'll fix things up here. | |
1389 | Is this a good idea? */ | |
8c18cbfb | 1390 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1391 | && !EQ (internal_last_event_frame, selected_frame)) |
e630dfc6 | 1392 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1393 | #endif |
48e416d4 RS |
1394 | /* If it has changed current-menubar from previous value, |
1395 | really recompute the menubar from the value. */ | |
a646e520 RS |
1396 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1397 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1398 | call0 (Qrecompute_lucid_menubar); |
1399 | ||
71918b75 RS |
1400 | before_command_key_count = this_command_key_count; |
1401 | before_command_echo_length = echo_length (); | |
1402 | ||
d5eecefb RS |
1403 | Vthis_command = Qnil; |
1404 | real_this_command = Qnil; | |
9d138659 | 1405 | Vthis_original_command = Qnil; |
025ae953 | 1406 | Vthis_command_keys_shift_translated = Qnil; |
d7437ef6 | 1407 | |
8f805655 | 1408 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1409 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1410 | Qnil, 0, 1, 1); |
8f805655 | 1411 | |
6fac1409 | 1412 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1413 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1414 | Fkill_emacs (Qnil); |
6fac1409 RS |
1415 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1416 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1417 | ||
8f805655 JB |
1418 | ++num_input_keys; |
1419 | ||
284f4730 JB |
1420 | /* Now we have read a key sequence of length I, |
1421 | or else I is 0 and we found end of file. */ | |
1422 | ||
1423 | if (i == 0) /* End of file -- happens only in */ | |
1424 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1425 | /* -1 means read_key_sequence got a menu that was rejected. |
1426 | Just loop around and read another command. */ | |
1427 | if (i == -1) | |
1428 | { | |
1429 | cancel_echoing (); | |
1430 | this_command_key_count = 0; | |
63020c46 | 1431 | this_command_key_count_reset = 0; |
6321824f | 1432 | this_single_command_key_start = 0; |
ff4b06d3 | 1433 | goto finalize; |
dcc408a0 | 1434 | } |
284f4730 | 1435 | |
4b09796d | 1436 | last_command_event = keybuf[i - 1]; |
284f4730 | 1437 | |
75c0b143 RS |
1438 | /* If the previous command tried to force a specific window-start, |
1439 | forget about that, in case this command moves point far away | |
c422836d KH |
1440 | from that position. But also throw away beg_unchanged and |
1441 | end_unchanged information in that case, so that redisplay will | |
1442 | update the whole window properly. */ | |
1443 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1444 | { | |
9351ebd0 | 1445 | struct buffer *b; |
c422836d | 1446 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1447 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1448 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1449 | } |
75c0b143 | 1450 | |
284f4730 | 1451 | cmd = read_key_sequence_cmd; |
ce0d2858 | 1452 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 JB |
1453 | { |
1454 | if (!NILP (Vquit_flag)) | |
1455 | { | |
ce0d2858 | 1456 | Vexecuting_kbd_macro = Qt; |
284f4730 JB |
1457 | QUIT; /* Make some noise. */ |
1458 | /* Will return since macro now empty. */ | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | /* Do redisplay processing after this command except in special | |
e35b6123 | 1463 | cases identified below. */ |
86e5706b RS |
1464 | prev_buffer = current_buffer; |
1465 | prev_modiff = MODIFF; | |
8746da95 | 1466 | last_point_position = PT; |
bb0e1d19 | 1467 | last_point_position_window = selected_window; |
18cd2eeb | 1468 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1469 | |
adf5cb9c KH |
1470 | /* By default, we adjust point to a boundary of a region that |
1471 | has such a property that should be treated intangible | |
1472 | (e.g. composition, display). But, some commands will set | |
1473 | this variable differently. */ | |
1474 | Vdisable_point_adjustment = Qnil; | |
a7b772c1 | 1475 | |
be2488ca GM |
1476 | /* Process filters and timers may have messed with deactivate-mark. |
1477 | reset it before we execute the command. */ | |
1478 | Vdeactivate_mark = Qnil; | |
1479 | ||
8b9940e6 KS |
1480 | /* Remap command through active keymaps */ |
1481 | Vthis_original_command = cmd; | |
a34cb674 | 1482 | if (SYMBOLP (cmd)) |
8b9940e6 KS |
1483 | { |
1484 | Lisp_Object cmd1; | |
9be34f7f | 1485 | if (cmd1 = Fcommand_remapping (cmd, Qnil, Qnil), !NILP (cmd1)) |
8b9940e6 KS |
1486 | cmd = cmd1; |
1487 | } | |
1488 | ||
284f4730 JB |
1489 | /* Execute the command. */ |
1490 | ||
d5eecefb RS |
1491 | Vthis_command = cmd; |
1492 | real_this_command = cmd; | |
a98ea3f9 RS |
1493 | /* Note that the value cell will never directly contain nil |
1494 | if the symbol is a local variable. */ | |
e98a93eb | 1495 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1496 | safe_run_hooks (Qpre_command_hook); |
c60ee5e7 | 1497 | |
2764bebd RS |
1498 | already_adjusted = 0; |
1499 | ||
d5eecefb | 1500 | if (NILP (Vthis_command)) |
284f4730 JB |
1501 | { |
1502 | /* nil means key is undefined. */ | |
1bf0e604 SM |
1503 | Lisp_Object keys = Fvector (i, keybuf); |
1504 | keys = Fkey_description (keys, Qnil); | |
284f4730 | 1505 | bitch_at_user (); |
1bf0e604 | 1506 | message_with_string ("%s is undefined", keys, 0); |
c5fdd383 | 1507 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1508 | update_mode_lines = 1; |
d8bcf58e | 1509 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1510 | } |
1511 | else | |
1512 | { | |
284f4730 JB |
1513 | /* Here for a command that isn't executed directly */ |
1514 | ||
d148e14d | 1515 | #ifdef HAVE_WINDOW_SYSTEM |
0af912f0 JD |
1516 | int scount = SPECPDL_INDEX (); |
1517 | ||
1518 | if (display_hourglass_p | |
ce0d2858 | 1519 | && NILP (Vexecuting_kbd_macro)) |
0af912f0 JD |
1520 | { |
1521 | record_unwind_protect (cancel_hourglass_unwind, Qnil); | |
1522 | start_hourglass (); | |
1523 | } | |
7ee32cda GM |
1524 | #endif |
1525 | ||
1ac9108a | 1526 | if (NILP (current_kboard->Vprefix_arg)) /* FIXME: Why? --Stef */ |
0af912f0 JD |
1527 | Fundo_boundary (); |
1528 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); | |
d0c48478 | 1529 | |
d148e14d | 1530 | #ifdef HAVE_WINDOW_SYSTEM |
4fbcc9b1 PJ |
1531 | /* Do not check display_hourglass_p here, because |
1532 | Fcommand_execute could change it, but we should cancel | |
e1204d39 RS |
1533 | hourglass cursor anyway. |
1534 | But don't cancel the hourglass within a macro | |
1535 | just because a command in the macro finishes. */ | |
ce0d2858 | 1536 | if (NILP (Vexecuting_kbd_macro)) |
0af912f0 | 1537 | unbind_to (scount, Qnil); |
d0c48478 | 1538 | #endif |
0af912f0 | 1539 | } |
75045dcb | 1540 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1541 | |
84ee6048 RS |
1542 | /* Note that the value cell will never directly contain nil |
1543 | if the symbol is a local variable. */ | |
1544 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1545 | safe_run_hooks (Qpost_command_hook); | |
1546 | ||
8f12e41d GM |
1547 | /* If displaying a message, resize the echo area window to fit |
1548 | that message's size exactly. */ | |
1549 | if (!NILP (echo_area_buffer[0])) | |
f09c15ed | 1550 | resize_echo_area_exactly (); |
8f12e41d | 1551 | |
84ee6048 RS |
1552 | if (!NILP (Vdeferred_action_list)) |
1553 | safe_run_hooks (Qdeferred_action_function); | |
1554 | ||
284f4730 | 1555 | /* If there is a prefix argument, |
6c7178b9 KH |
1556 | 1) We don't want Vlast_command to be ``universal-argument'' |
1557 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1558 | 2) we want to leave echoing on so that the prefix will be |
1559 | echoed as part of this key sequence, so don't call | |
1560 | cancel_echoing, and | |
1561 | 3) we want to leave this_command_key_count non-zero, so that | |
1562 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1563 | not echo it a second time. |
1564 | ||
1565 | If the command didn't actually create a prefix arg, | |
1566 | but is merely a frame event that is transparent to prefix args, | |
1567 | then the above doesn't apply. */ | |
4b09796d | 1568 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_event)) |
284f4730 | 1569 | { |
d5eecefb RS |
1570 | current_kboard->Vlast_command = Vthis_command; |
1571 | current_kboard->Vreal_last_command = real_this_command; | |
4b09796d | 1572 | if (!CONSP (last_command_event)) |
d0d3a311 | 1573 | current_kboard->Vlast_repeatable_command = real_this_command; |
284f4730 JB |
1574 | cancel_echoing (); |
1575 | this_command_key_count = 0; | |
63020c46 | 1576 | this_command_key_count_reset = 0; |
6321824f | 1577 | this_single_command_key_start = 0; |
284f4730 | 1578 | } |
86e5706b | 1579 | |
6926550f CY |
1580 | if (!NILP (current_buffer->mark_active) |
1581 | && !NILP (Vrun_hooks)) | |
86e5706b | 1582 | { |
12679e05 CY |
1583 | /* In Emacs 22, setting transient-mark-mode to `only' was a |
1584 | way of turning it on for just one command. This usage is | |
1585 | obsolete, but support it anyway. */ | |
1586 | if (EQ (Vtransient_mark_mode, Qidentity)) | |
1587 | Vtransient_mark_mode = Qnil; | |
1588 | else if (EQ (Vtransient_mark_mode, Qonly)) | |
1589 | Vtransient_mark_mode = Qidentity; | |
1590 | ||
5c4cc82a | 1591 | if (!NILP (Vdeactivate_mark)) |
7c23dd44 CY |
1592 | /* If `select-active-regions' is non-nil, this call to |
1593 | `deactivate-mark' also sets the PRIMARY selection. */ | |
5c4cc82a | 1594 | call0 (Qdeactivate_mark); |
7c23dd44 CY |
1595 | else |
1596 | { | |
1597 | /* Even if not deactivating the mark, set PRIMARY if | |
1598 | `select-active-regions' is non-nil. */ | |
07fa68a7 | 1599 | if (!NILP (Fwindow_system (Qnil)) |
6926550f CY |
1600 | /* Even if mark_active is non-nil, the actual buffer |
1601 | marker may not have been set yet (Bug#7044). */ | |
1602 | && XMARKER (current_buffer->mark)->buffer | |
07fa68a7 CY |
1603 | && (EQ (Vselect_active_regions, Qonly) |
1604 | ? EQ (CAR_SAFE (Vtransient_mark_mode), Qonly) | |
1605 | : (!NILP (Vselect_active_regions) | |
1606 | && !NILP (Vtransient_mark_mode))) | |
1c409d0b | 1607 | && !EQ (Vthis_command, Qhandle_switch_frame)) |
7c23dd44 | 1608 | { |
413d18e7 EZ |
1609 | EMACS_INT beg = |
1610 | XINT (Fmarker_position (current_buffer->mark)); | |
1611 | EMACS_INT end = PT; | |
7c23dd44 CY |
1612 | if (beg < end) |
1613 | call2 (Qx_set_selection, QPRIMARY, | |
1614 | make_buffer_string (beg, end, 0)); | |
1615 | else if (beg > end) | |
1616 | call2 (Qx_set_selection, QPRIMARY, | |
1617 | make_buffer_string (end, beg, 0)); | |
1618 | /* Don't set empty selections. */ | |
1619 | } | |
1620 | ||
1621 | if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1622 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1623 | } | |
9852377f CY |
1624 | |
1625 | Vsaved_region_selection = Qnil; | |
86e5706b | 1626 | } |
ff4b06d3 KH |
1627 | |
1628 | finalize: | |
adf5cb9c KH |
1629 | |
1630 | if (current_buffer == prev_buffer | |
1631 | && last_point_position != PT | |
1632 | && NILP (Vdisable_point_adjustment) | |
4abd35cb KH |
1633 | && NILP (Vglobal_disable_point_adjustment)) |
1634 | { | |
31f9c376 KH |
1635 | if (last_point_position > BEGV |
1636 | && last_point_position < ZV | |
1637 | && (composition_adjust_point (last_point_position, | |
1638 | last_point_position) | |
1639 | != last_point_position)) | |
4abd35cb KH |
1640 | /* The last point was temporarily set within a grapheme |
1641 | cluster to prevent automatic composition. To recover | |
1642 | the automatic composition, we must update the | |
1643 | display. */ | |
1644 | windows_or_buffers_changed++; | |
1645 | if (!already_adjusted) | |
1646 | adjust_point_for_property (last_point_position, | |
1647 | MODIFF != prev_modiff); | |
1648 | } | |
adf5cb9c | 1649 | |
ff4b06d3 KH |
1650 | /* Install chars successfully executed in kbd macro. */ |
1651 | ||
d8bcf58e KH |
1652 | if (!NILP (current_kboard->defining_kbd_macro) |
1653 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 | 1654 | finalize_kbd_macro_chars (); |
b3e6f69c | 1655 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
604ccd1d | 1656 | if (!was_locked) |
b3e6f69c | 1657 | any_kboard_state (); |
ff4b06d3 | 1658 | #endif |
284f4730 JB |
1659 | } |
1660 | } | |
1c9784c9 | 1661 | |
adf5cb9c KH |
1662 | /* Adjust point to a boundary of a region that has such a property |
1663 | that should be treated intangible. For the moment, we check | |
7e16ef60 SM |
1664 | `composition', `display' and `invisible' properties. |
1665 | LAST_PT is the last position of point. */ | |
adf5cb9c KH |
1666 | |
1667 | static void | |
41118bd3 | 1668 | adjust_point_for_property (EMACS_INT last_pt, int modified) |
adf5cb9c | 1669 | { |
2b95772c | 1670 | EMACS_INT beg, end; |
7e16ef60 | 1671 | Lisp_Object val, overlay, tmp; |
4abd35cb KH |
1672 | /* When called after buffer modification, we should temporarily |
1673 | suppress the point adjustment for automatic composition so that a | |
1674 | user can keep inserting another character at point or keep | |
1675 | deleting characters around point. */ | |
1676 | int check_composition = ! modified, check_display = 1, check_invisible = 1; | |
41118bd3 | 1677 | EMACS_INT orig_pt = PT; |
adf5cb9c | 1678 | |
0bbdffbd SM |
1679 | /* FIXME: cycling is probably not necessary because these properties |
1680 | can't be usefully combined anyway. */ | |
7e16ef60 | 1681 | while (check_composition || check_display || check_invisible) |
adf5cb9c | 1682 | { |
5c4cc82a | 1683 | /* FIXME: check `intangible'. */ |
adf5cb9c KH |
1684 | if (check_composition |
1685 | && PT > BEGV && PT < ZV | |
4abd35cb | 1686 | && (beg = composition_adjust_point (last_pt, PT)) != PT) |
adf5cb9c | 1687 | { |
db2f2cdc | 1688 | SET_PT (beg); |
14e40288 | 1689 | check_display = check_invisible = 1; |
adf5cb9c KH |
1690 | } |
1691 | check_composition = 0; | |
1692 | if (check_display | |
1693 | && PT > BEGV && PT < ZV | |
7e16ef60 SM |
1694 | && !NILP (val = get_char_property_and_overlay |
1695 | (make_number (PT), Qdisplay, Qnil, &overlay)) | |
3e9ac4b7 | 1696 | && display_prop_intangible_p (val) |
7e16ef60 SM |
1697 | && (!OVERLAYP (overlay) |
1698 | ? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil) | |
1699 | : (beg = OVERLAY_POSITION (OVERLAY_START (overlay)), | |
1700 | end = OVERLAY_POSITION (OVERLAY_END (overlay)))) | |
4ca39724 KS |
1701 | && (beg < PT /* && end > PT <- It's always the case. */ |
1702 | || (beg <= PT && STRINGP (val) && SCHARS (val) == 0))) | |
adf5cb9c | 1703 | { |
14e40288 | 1704 | xassert (end > PT); |
4ca39724 KS |
1705 | SET_PT (PT < last_pt |
1706 | ? (STRINGP (val) && SCHARS (val) == 0 ? beg - 1 : beg) | |
1707 | : end); | |
14e40288 | 1708 | check_composition = check_invisible = 1; |
adf5cb9c KH |
1709 | } |
1710 | check_display = 0; | |
14e40288 | 1711 | if (check_invisible && PT > BEGV && PT < ZV) |
7e16ef60 | 1712 | { |
14e40288 SM |
1713 | int inv, ellipsis = 0; |
1714 | beg = end = PT; | |
1715 | ||
1716 | /* Find boundaries `beg' and `end' of the invisible area, if any. */ | |
1717 | while (end < ZV | |
0a0e7d49 CY |
1718 | #if 0 |
1719 | /* FIXME: We should stop if we find a spot between | |
1720 | two runs of `invisible' where inserted text would | |
1721 | be visible. This is important when we have two | |
1722 | invisible boundaries that enclose an area: if the | |
1723 | area is empty, we need this test in order to make | |
1724 | it possible to place point in the middle rather | |
1725 | than skip both boundaries. However, this code | |
1726 | also stops anywhere in a non-sticky text-property, | |
1727 | which breaks (e.g.) Org mode. */ | |
51d861de SM |
1728 | && (val = get_pos_property (make_number (end), |
1729 | Qinvisible, Qnil), | |
1730 | TEXT_PROP_MEANS_INVISIBLE (val)) | |
0a0e7d49 | 1731 | #endif |
14e40288 SM |
1732 | && !NILP (val = get_char_property_and_overlay |
1733 | (make_number (end), Qinvisible, Qnil, &overlay)) | |
1734 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1735 | { | |
1736 | ellipsis = ellipsis || inv > 1 | |
1737 | || (OVERLAYP (overlay) | |
1738 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1739 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1740 | tmp = Fnext_single_char_property_change | |
1741 | (make_number (end), Qinvisible, Qnil, Qnil); | |
1742 | end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV; | |
1743 | } | |
1744 | while (beg > BEGV | |
0a0e7d49 | 1745 | #if 0 |
51d861de SM |
1746 | && (val = get_pos_property (make_number (beg), |
1747 | Qinvisible, Qnil), | |
1748 | TEXT_PROP_MEANS_INVISIBLE (val)) | |
0a0e7d49 | 1749 | #endif |
14e40288 SM |
1750 | && !NILP (val = get_char_property_and_overlay |
1751 | (make_number (beg - 1), Qinvisible, Qnil, &overlay)) | |
1752 | && (inv = TEXT_PROP_MEANS_INVISIBLE (val))) | |
1753 | { | |
1754 | ellipsis = ellipsis || inv > 1 | |
1755 | || (OVERLAYP (overlay) | |
1756 | && (!NILP (Foverlay_get (overlay, Qafter_string)) | |
1757 | || !NILP (Foverlay_get (overlay, Qbefore_string)))); | |
1758 | tmp = Fprevious_single_char_property_change | |
1759 | (make_number (beg), Qinvisible, Qnil, Qnil); | |
1760 | beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV; | |
1761 | } | |
c60ee5e7 | 1762 | |
14e40288 SM |
1763 | /* Move away from the inside area. */ |
1764 | if (beg < PT && end > PT) | |
1765 | { | |
0bbdffbd SM |
1766 | SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end)) |
1767 | /* We haven't moved yet (so we don't need to fear | |
1768 | infinite-looping) and we were outside the range | |
1769 | before (so either end of the range still corresponds | |
1770 | to a move in the right direction): pretend we moved | |
1771 | less than we actually did, so that we still have | |
1772 | more freedom below in choosing which end of the range | |
1773 | to go to. */ | |
9465a86c | 1774 | ? (orig_pt = -1, PT < last_pt ? end : beg) |
0bbdffbd SM |
1775 | /* We either have moved already or the last point |
1776 | was already in the range: we don't get to choose | |
1777 | which end of the range we have to go to. */ | |
1778 | : (PT < last_pt ? beg : end)); | |
14e40288 SM |
1779 | check_composition = check_display = 1; |
1780 | } | |
6b61353c KH |
1781 | #if 0 /* This assertion isn't correct, because SET_PT may end up setting |
1782 | the point to something other than its argument, due to | |
1783 | point-motion hooks, intangibility, etc. */ | |
14e40288 | 1784 | xassert (PT == beg || PT == end); |
6b61353c KH |
1785 | #endif |
1786 | ||
2a026b04 KH |
1787 | /* Pretend the area doesn't exist if the buffer is not |
1788 | modified. */ | |
1789 | if (!modified && !ellipsis && beg < end) | |
14e40288 SM |
1790 | { |
1791 | if (last_pt == beg && PT == end && end < ZV) | |
1792 | (check_composition = check_display = 1, SET_PT (end + 1)); | |
1793 | else if (last_pt == end && PT == beg && beg > BEGV) | |
1794 | (check_composition = check_display = 1, SET_PT (beg - 1)); | |
1795 | else if (PT == ((PT < last_pt) ? beg : end)) | |
1796 | /* We've already moved as far as we can. Trying to go | |
1797 | to the other end would mean moving backwards and thus | |
1798 | could lead to an infinite loop. */ | |
1799 | ; | |
1800 | else if (val = get_pos_property (make_number (PT), | |
1801 | Qinvisible, Qnil), | |
1802 | TEXT_PROP_MEANS_INVISIBLE (val) | |
1803 | && (val = get_pos_property | |
1804 | (make_number (PT == beg ? end : beg), | |
1805 | Qinvisible, Qnil), | |
1806 | !TEXT_PROP_MEANS_INVISIBLE (val))) | |
1807 | (check_composition = check_display = 1, | |
1808 | SET_PT (PT == beg ? end : beg)); | |
1809 | } | |
7e16ef60 SM |
1810 | } |
1811 | check_invisible = 0; | |
adf5cb9c KH |
1812 | } |
1813 | } | |
1814 | ||
0bc3db2b RS |
1815 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1816 | ||
1817 | static Lisp_Object | |
d3da34e0 | 1818 | safe_run_hooks_1 (void) |
0bc3db2b | 1819 | { |
5e093f44 RS |
1820 | if (NILP (Vrun_hooks)) |
1821 | return Qnil; | |
0bc3db2b RS |
1822 | return call1 (Vrun_hooks, Vinhibit_quit); |
1823 | } | |
1824 | ||
1825 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1826 | ||
1827 | static Lisp_Object | |
d3da34e0 | 1828 | safe_run_hooks_error (Lisp_Object data) |
0bc3db2b | 1829 | { |
adec392e SM |
1830 | Lisp_Object args[3]; |
1831 | args[0] = build_string ("Error in %s: %s"); | |
1832 | args[1] = Vinhibit_quit; | |
1833 | args[2] = data; | |
1834 | Fmessage (3, args); | |
30690496 | 1835 | return Fset (Vinhibit_quit, Qnil); |
0bc3db2b RS |
1836 | } |
1837 | ||
1c9784c9 KH |
1838 | /* If we get an error while running the hook, cause the hook variable |
1839 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1840 | to mysteriously evaporate. */ | |
0bc3db2b | 1841 | |
68f297c5 | 1842 | void |
d3da34e0 | 1843 | safe_run_hooks (Lisp_Object hook) |
1c9784c9 | 1844 | { |
aed13378 | 1845 | int count = SPECPDL_INDEX (); |
0bc3db2b RS |
1846 | specbind (Qinhibit_quit, hook); |
1847 | ||
e702932d | 1848 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1849 | |
1850 | unbind_to (count, Qnil); | |
1851 | } | |
8a9f5d3c | 1852 | |
284f4730 | 1853 | \f |
eb8c3be9 | 1854 | /* Nonzero means polling for input is temporarily suppressed. */ |
8a9f5d3c | 1855 | |
284f4730 JB |
1856 | int poll_suppress_count; |
1857 | ||
8a9f5d3c GM |
1858 | /* Asynchronous timer for polling. */ |
1859 | ||
1860 | struct atimer *poll_timer; | |
1861 | ||
284f4730 | 1862 | |
36922b18 RS |
1863 | #ifdef POLL_FOR_INPUT |
1864 | ||
c96169a0 | 1865 | /* Poll for input, so that we catch a C-g if it comes in. This |
8a9f5d3c GM |
1866 | function is called from x_make_frame_visible, see comment |
1867 | there. */ | |
284f4730 | 1868 | |
8a9f5d3c | 1869 | void |
d3da34e0 | 1870 | poll_for_input_1 (void) |
284f4730 | 1871 | { |
c96169a0 AR |
1872 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
1873 | doing anything dangerous. */ | |
1874 | #ifdef HAVE_NS | |
1875 | ++handling_signal; | |
1876 | #endif | |
9ac0d9e0 JB |
1877 | if (interrupt_input_blocked == 0 |
1878 | && !waiting_for_input) | |
1879 | read_avail_input (0); | |
c96169a0 AR |
1880 | #ifdef HAVE_NS |
1881 | --handling_signal; | |
1882 | #endif | |
284f4730 JB |
1883 | } |
1884 | ||
8a9f5d3c GM |
1885 | /* Timer callback function for poll_timer. TIMER is equal to |
1886 | poll_timer. */ | |
1887 | ||
1888 | void | |
d3da34e0 | 1889 | poll_for_input (struct atimer *timer) |
8a9f5d3c GM |
1890 | { |
1891 | if (poll_suppress_count == 0) | |
ceb18827 | 1892 | { |
a42bf890 | 1893 | #ifdef SYNC_INPUT |
ceb18827 CY |
1894 | interrupt_input_pending = 1; |
1895 | pending_signals = 1; | |
a42bf890 | 1896 | #else |
ceb18827 | 1897 | poll_for_input_1 (); |
a42bf890 | 1898 | #endif |
ceb18827 | 1899 | } |
8a9f5d3c GM |
1900 | } |
1901 | ||
1902 | #endif /* POLL_FOR_INPUT */ | |
284f4730 JB |
1903 | |
1904 | /* Begin signals to poll for input, if they are appropriate. | |
1905 | This function is called unconditionally from various places. */ | |
1906 | ||
07a59269 | 1907 | void |
d3da34e0 | 1908 | start_polling (void) |
284f4730 JB |
1909 | { |
1910 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
1911 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
1912 | but read_socket_hook is not global anymore. Let's pretend that | |
1913 | it's always set. */ | |
1914 | if (!interrupt_input) | |
284f4730 | 1915 | { |
8a9f5d3c GM |
1916 | /* Turn alarm handling on unconditionally. It might have |
1917 | been turned off in process.c. */ | |
1918 | turn_on_atimers (1); | |
c60ee5e7 | 1919 | |
8a9f5d3c GM |
1920 | /* If poll timer doesn't exist, are we need one with |
1921 | a different interval, start a new one. */ | |
1922 | if (poll_timer == NULL | |
1923 | || EMACS_SECS (poll_timer->interval) != polling_period) | |
284f4730 | 1924 | { |
8a9f5d3c GM |
1925 | EMACS_TIME interval; |
1926 | ||
1927 | if (poll_timer) | |
1928 | cancel_atimer (poll_timer); | |
c60ee5e7 | 1929 | |
8a9f5d3c GM |
1930 | EMACS_SET_SECS_USECS (interval, polling_period, 0); |
1931 | poll_timer = start_atimer (ATIMER_CONTINUOUS, interval, | |
1932 | poll_for_input, NULL); | |
284f4730 | 1933 | } |
8a9f5d3c GM |
1934 | |
1935 | /* Let the timer's callback function poll for input | |
1936 | if this becomes zero. */ | |
1937 | --poll_suppress_count; | |
284f4730 JB |
1938 | } |
1939 | #endif | |
1940 | } | |
1941 | ||
1d3195db RS |
1942 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1943 | ||
1944 | int | |
d3da34e0 | 1945 | input_polling_used (void) |
1d3195db RS |
1946 | { |
1947 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
1948 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
1949 | but read_socket_hook is not global anymore. Let's pretend that | |
1950 | it's always set. */ | |
1951 | return !interrupt_input; | |
1d3195db RS |
1952 | #else |
1953 | return 0; | |
1954 | #endif | |
1955 | } | |
1956 | ||
284f4730 JB |
1957 | /* Turn off polling. */ |
1958 | ||
07a59269 | 1959 | void |
d3da34e0 | 1960 | stop_polling (void) |
284f4730 JB |
1961 | { |
1962 | #ifdef POLL_FOR_INPUT | |
428a555e KL |
1963 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
1964 | but read_socket_hook is not global anymore. Let's pretend that | |
1965 | it's always set. */ | |
1966 | if (!interrupt_input) | |
8a9f5d3c | 1967 | ++poll_suppress_count; |
284f4730 JB |
1968 | #endif |
1969 | } | |
fe8aeef3 RS |
1970 | |
1971 | /* Set the value of poll_suppress_count to COUNT | |
1972 | and start or stop polling accordingly. */ | |
1973 | ||
1974 | void | |
d3da34e0 | 1975 | set_poll_suppress_count (int count) |
fe8aeef3 RS |
1976 | { |
1977 | #ifdef POLL_FOR_INPUT | |
1978 | if (count == 0 && poll_suppress_count != 0) | |
1979 | { | |
1980 | poll_suppress_count = 1; | |
1981 | start_polling (); | |
1982 | } | |
1983 | else if (count != 0 && poll_suppress_count == 0) | |
1984 | { | |
1985 | stop_polling (); | |
1986 | } | |
1987 | poll_suppress_count = count; | |
1988 | #endif | |
1989 | } | |
f4eef8b4 | 1990 | |
d0a57728 RS |
1991 | /* Bind polling_period to a value at least N. |
1992 | But don't decrease it. */ | |
1993 | ||
07a59269 | 1994 | void |
d3da34e0 | 1995 | bind_polling_period (int n) |
f4eef8b4 RS |
1996 | { |
1997 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1998 | int new = polling_period; |
1999 | ||
2000 | if (n > new) | |
2001 | new = n; | |
2002 | ||
6fe007f7 | 2003 | stop_other_atimers (poll_timer); |
f4eef8b4 | 2004 | stop_polling (); |
d0a57728 RS |
2005 | specbind (Qpolling_period, make_number (new)); |
2006 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
2007 | start_polling (); |
2008 | #endif | |
2009 | } | |
284f4730 | 2010 | \f |
6da3dd3a RS |
2011 | /* Apply the control modifier to CHARACTER. */ |
2012 | ||
faf5e407 | 2013 | int |
d3da34e0 | 2014 | make_ctrl_char (int c) |
faf5e407 | 2015 | { |
d205953b JB |
2016 | /* Save the upper bits here. */ |
2017 | int upper = c & ~0177; | |
2018 | ||
a32aad64 KH |
2019 | if (! ASCII_BYTE_P (c)) |
2020 | return c |= ctrl_modifier; | |
2021 | ||
d205953b JB |
2022 | c &= 0177; |
2023 | ||
2024 | /* Everything in the columns containing the upper-case letters | |
2025 | denotes a control character. */ | |
2026 | if (c >= 0100 && c < 0140) | |
2027 | { | |
2028 | int oc = c; | |
2029 | c &= ~0140; | |
2030 | /* Set the shift modifier for a control char | |
2031 | made from a shifted letter. But only for letters! */ | |
2032 | if (oc >= 'A' && oc <= 'Z') | |
2033 | c |= shift_modifier; | |
2034 | } | |
2035 | ||
2036 | /* The lower-case letters denote control characters too. */ | |
2037 | else if (c >= 'a' && c <= 'z') | |
2038 | c &= ~0140; | |
2039 | ||
2040 | /* Include the bits for control and shift | |
2041 | only if the basic ASCII code can't indicate them. */ | |
2042 | else if (c >= ' ') | |
2043 | c |= ctrl_modifier; | |
2044 | ||
2045 | /* Replace the high bits. */ | |
2046 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
2047 | |
2048 | return c; | |
2049 | } | |
2050 | ||
bb8c4865 RS |
2051 | /* Display the help-echo property of the character after the mouse pointer. |
2052 | Either show it in the echo area, or call show-help-function to display | |
2053 | it by other means (maybe in a tooltip). | |
d4e68eea | 2054 | |
bb8c4865 | 2055 | If HELP is nil, that means clear the previous help echo. |
d4e68eea | 2056 | |
bb8c4865 RS |
2057 | If HELP is a string, display that string. If HELP is a function, |
2058 | call it with OBJECT and POS as arguments; the function should | |
2059 | return a help string or nil for none. For all other types of HELP, | |
2060 | evaluate it to obtain a string. | |
8dfd92c9 | 2061 | |
2190735a GM |
2062 | WINDOW is the window in which the help was generated, if any. |
2063 | It is nil if not in a window. | |
2064 | ||
5b2ec2d0 GM |
2065 | If OBJECT is a buffer, POS is the position in the buffer where the |
2066 | `help-echo' text property was found. | |
2067 | ||
2068 | If OBJECT is an overlay, that overlay has a `help-echo' property, | |
2069 | and POS is the position in the overlay's buffer under the mouse. | |
2070 | ||
2071 | If OBJECT is a string (an overlay string or a string displayed with | |
2072 | the `display' property). POS is the position in that string under | |
2073 | the mouse. | |
d4e68eea | 2074 | |
27fd22dc | 2075 | OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help |
d4e68eea GM |
2076 | echo overwrites a keystroke echo currently displayed in the echo |
2077 | area. | |
2078 | ||
8dfd92c9 GM |
2079 | Note: this function may only be called with HELP nil or a string |
2080 | from X code running asynchronously. */ | |
d4e68eea | 2081 | |
31f84d03 | 2082 | void |
d3da34e0 JB |
2083 | show_help_echo (Lisp_Object help, Lisp_Object window, Lisp_Object object, |
2084 | Lisp_Object pos, int ok_to_overwrite_keystroke_echo) | |
31f84d03 | 2085 | { |
8dfd92c9 | 2086 | if (!NILP (help) && !STRINGP (help)) |
d4e68eea | 2087 | { |
8dfd92c9 GM |
2088 | if (FUNCTIONP (help)) |
2089 | { | |
2190735a | 2090 | Lisp_Object args[4]; |
8dfd92c9 | 2091 | args[0] = help; |
2190735a GM |
2092 | args[1] = window; |
2093 | args[2] = object; | |
2094 | args[3] = pos; | |
1db0076e | 2095 | help = safe_call (4, args); |
8dfd92c9 GM |
2096 | } |
2097 | else | |
1db0076e | 2098 | help = safe_eval (help); |
c60ee5e7 | 2099 | |
8dfd92c9 | 2100 | if (!STRINGP (help)) |
d4e68eea | 2101 | return; |
31f84d03 SM |
2102 | } |
2103 | ||
ae372f41 | 2104 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
c22237f7 | 2105 | if (!noninteractive && STRINGP (help)) |
c5b76d6c CY |
2106 | { |
2107 | /* The mouse-fixup-help-message Lisp function can call | |
2108 | mouse_position_hook, which resets the mouse_moved flags. | |
2109 | This causes trouble if we are trying to read a mouse motion | |
2110 | event (i.e., if we are inside a `track-mouse' form), so we | |
2111 | restore the mouse_moved flag. */ | |
2112 | FRAME_PTR f = NILP (do_mouse_tracking) ? NULL : some_mouse_moved (); | |
2113 | help = call1 (Qmouse_fixup_help_message, help); | |
2114 | if (f) | |
2115 | f->mouse_moved = 1; | |
2116 | } | |
c22237f7 KS |
2117 | #endif |
2118 | ||
8dfd92c9 | 2119 | if (STRINGP (help) || NILP (help)) |
d4e68eea GM |
2120 | { |
2121 | if (!NILP (Vshow_help_function)) | |
8dfd92c9 | 2122 | call1 (Vshow_help_function, help); |
5295a500 | 2123 | help_echo_showing_p = STRINGP (help); |
d4e68eea | 2124 | } |
31f84d03 SM |
2125 | } |
2126 | ||
faf5e407 JB |
2127 | |
2128 | \f | |
284f4730 JB |
2129 | /* Input of single characters from keyboard */ |
2130 | ||
d3da34e0 JB |
2131 | Lisp_Object print_help (Lisp_Object object); |
2132 | static Lisp_Object kbd_buffer_get_event (KBOARD **kbp, int *used_mouse_menu, | |
2133 | struct timeval *end_time); | |
2134 | static void record_char (Lisp_Object c); | |
284f4730 | 2135 | |
638d3da0 CY |
2136 | static Lisp_Object help_form_saved_window_configs; |
2137 | static Lisp_Object | |
63c125ab | 2138 | read_char_help_form_unwind (Lisp_Object arg) |
638d3da0 CY |
2139 | { |
2140 | Lisp_Object window_config = XCAR (help_form_saved_window_configs); | |
2141 | help_form_saved_window_configs = XCDR (help_form_saved_window_configs); | |
2142 | if (!NILP (window_config)) | |
2143 | Fset_window_configuration (window_config); | |
2144 | return Qnil; | |
2145 | } | |
2146 | ||
184c3d81 RS |
2147 | #define STOP_POLLING \ |
2148 | do { if (! polling_stopped_here) stop_polling (); \ | |
2149 | polling_stopped_here = 1; } while (0) | |
2150 | ||
2151 | #define RESUME_POLLING \ | |
2152 | do { if (polling_stopped_here) start_polling (); \ | |
2153 | polling_stopped_here = 0; } while (0) | |
2154 | ||
284f4730 JB |
2155 | /* read a character from the keyboard; call the redisplay if needed */ |
2156 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
2157 | -1 means do not do redisplay, but do do autosaving. | |
2158 | 1 means do both. */ | |
2159 | ||
7d6de002 RS |
2160 | /* The arguments MAPS and NMAPS are for menu prompting. |
2161 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
2162 | ||
2163 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
2164 | the first event of a key sequence (or not reading a key sequence). |
2165 | If PREV_EVENT is t, that is a "magic" value that says | |
2166 | not to run input methods, but in other respects to act as if | |
2167 | not reading a key sequence. | |
7d6de002 | 2168 | |
83d68044 | 2169 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 2170 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 2171 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 | 2172 | |
9688ff53 | 2173 | Value is -2 when we find input on another keyboard. A second call |
033b73e2 | 2174 | to read_char will read it. |
9688ff53 | 2175 | |
179f689c CY |
2176 | If END_TIME is non-null, it is a pointer to an EMACS_TIME |
2177 | specifying the maximum time to wait until. If no input arrives by | |
2178 | that time, stop waiting and return nil. | |
2179 | ||
dcc408a0 | 2180 | Value is t if we showed a menu and the user rejected it. */ |
7d6de002 | 2181 | |
284f4730 | 2182 | Lisp_Object |
d3da34e0 JB |
2183 | read_char (int commandflag, int nmaps, Lisp_Object *maps, Lisp_Object prev_event, |
2184 | int *used_mouse_menu, struct timeval *end_time) | |
284f4730 | 2185 | { |
8c907a56 | 2186 | volatile Lisp_Object c; |
092869b9 | 2187 | int count, jmpcount; |
410d4de9 | 2188 | jmp_buf local_getcjmp; |
284f4730 | 2189 | jmp_buf save_jump; |
8c907a56 | 2190 | volatile int key_already_recorded = 0; |
017c7cb6 | 2191 | Lisp_Object tem, save; |
8c907a56 GM |
2192 | volatile Lisp_Object previous_echo_area_message; |
2193 | volatile Lisp_Object also_record; | |
2194 | volatile int reread; | |
d5eecefb | 2195 | struct gcpro gcpro1, gcpro2; |
184c3d81 | 2196 | int polling_stopped_here = 0; |
b3e6f69c | 2197 | struct kboard *orig_kboard = current_kboard; |
7c3bc944 | 2198 | |
e4fe371d | 2199 | also_record = Qnil; |
284f4730 | 2200 | |
22b94eeb | 2201 | #if 0 /* This was commented out as part of fixing echo for C-u left. */ |
71918b75 RS |
2202 | before_command_key_count = this_command_key_count; |
2203 | before_command_echo_length = echo_length (); | |
22b94eeb | 2204 | #endif |
ef6661f7 | 2205 | c = Qnil; |
7ee32cda | 2206 | previous_echo_area_message = Qnil; |
71918b75 | 2207 | |
7ee32cda | 2208 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 2209 | |
7f07d5ca RS |
2210 | retry: |
2211 | ||
7d18f9ae RS |
2212 | reread = 0; |
2213 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 2214 | { |
7539e11f | 2215 | c = XCAR (Vunread_post_input_method_events); |
7d18f9ae | 2216 | Vunread_post_input_method_events |
7539e11f | 2217 | = XCDR (Vunread_post_input_method_events); |
284f4730 | 2218 | |
2479e91e RS |
2219 | /* Undo what read_char_x_menu_prompt did when it unread |
2220 | additional keys returned by Fx_popup_menu. */ | |
2221 | if (CONSP (c) | |
7539e11f KR |
2222 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2223 | && NILP (XCDR (c))) | |
2224 | c = XCAR (c); | |
2479e91e | 2225 | |
7d18f9ae RS |
2226 | reread = 1; |
2227 | goto reread_first; | |
284f4730 JB |
2228 | } |
2229 | ||
86e5706b RS |
2230 | if (unread_command_char != -1) |
2231 | { | |
18cd2eeb | 2232 | XSETINT (c, unread_command_char); |
86e5706b RS |
2233 | unread_command_char = -1; |
2234 | ||
7d18f9ae RS |
2235 | reread = 1; |
2236 | goto reread_first; | |
2237 | } | |
2238 | ||
2239 | if (CONSP (Vunread_command_events)) | |
2240 | { | |
a41240a3 MR |
2241 | int was_disabled = 0; |
2242 | ||
7539e11f KR |
2243 | c = XCAR (Vunread_command_events); |
2244 | Vunread_command_events = XCDR (Vunread_command_events); | |
7d18f9ae | 2245 | |
96f4f7ec KS |
2246 | reread = 1; |
2247 | ||
2248 | /* Undo what sit-for did when it unread additional keys | |
2249 | inside universal-argument. */ | |
2250 | ||
2251 | if (CONSP (c) | |
2252 | && EQ (XCAR (c), Qt)) | |
2253 | { | |
2254 | reread = 0; | |
2255 | c = XCDR (c); | |
2256 | } | |
2257 | ||
7d18f9ae RS |
2258 | /* Undo what read_char_x_menu_prompt did when it unread |
2259 | additional keys returned by Fx_popup_menu. */ | |
2260 | if (CONSP (c) | |
f4e05d97 GM |
2261 | && EQ (XCDR (c), Qdisabled) |
2262 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))) | |
a41240a3 MR |
2263 | { |
2264 | was_disabled = 1; | |
2265 | c = XCAR (c); | |
2266 | } | |
c60ee5e7 | 2267 | |
d17e49a8 GM |
2268 | /* If the queued event is something that used the mouse, |
2269 | set used_mouse_menu accordingly. */ | |
2270 | if (used_mouse_menu | |
a41240a3 MR |
2271 | /* Also check was_disabled so last-nonmenu-event won't return |
2272 | a bad value when submenus are involved. (Bug#447) */ | |
2273 | && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar) || was_disabled)) | |
d17e49a8 | 2274 | *used_mouse_menu = 1; |
c60ee5e7 | 2275 | |
7d18f9ae RS |
2276 | goto reread_for_input_method; |
2277 | } | |
2278 | ||
2279 | if (CONSP (Vunread_input_method_events)) | |
2280 | { | |
7539e11f KR |
2281 | c = XCAR (Vunread_input_method_events); |
2282 | Vunread_input_method_events = XCDR (Vunread_input_method_events); | |
7d18f9ae RS |
2283 | |
2284 | /* Undo what read_char_x_menu_prompt did when it unread | |
2285 | additional keys returned by Fx_popup_menu. */ | |
2286 | if (CONSP (c) | |
7539e11f KR |
2287 | && (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))) |
2288 | && NILP (XCDR (c))) | |
2289 | c = XCAR (c); | |
7d18f9ae RS |
2290 | reread = 1; |
2291 | goto reread_for_input_method; | |
86e5706b RS |
2292 | } |
2293 | ||
63020c46 RS |
2294 | this_command_key_count_reset = 0; |
2295 | ||
ce0d2858 | 2296 | if (!NILP (Vexecuting_kbd_macro)) |
284f4730 | 2297 | { |
fce33686 JB |
2298 | /* We set this to Qmacro; since that's not a frame, nobody will |
2299 | try to switch frames on us, and the selected window will | |
2300 | remain unchanged. | |
2301 | ||
2302 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 2303 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
2304 | real event came from. Normally, a switch-frame event selects |
2305 | internal_last_event_frame after each command is read, but | |
2306 | events read from a macro should never cause a new frame to be | |
2307 | selected. */ | |
4c52b668 | 2308 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 2309 | |
663258f2 JB |
2310 | /* Exit the macro if we are at the end. |
2311 | Also, some things replace the macro with t | |
2312 | to force an early exit. */ | |
ce0d2858 | 2313 | if (EQ (Vexecuting_kbd_macro, Qt) |
649d952d | 2314 | || executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro))) |
284f4730 | 2315 | { |
18cd2eeb | 2316 | XSETINT (c, -1); |
184c3d81 | 2317 | goto exit; |
284f4730 | 2318 | } |
df0f2ba1 | 2319 | |
649d952d | 2320 | c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index)); |
ce0d2858 | 2321 | if (STRINGP (Vexecuting_kbd_macro) |
d5161e8c | 2322 | && (XINT (c) & 0x80) && (XUINT (c) <= 0xff)) |
bb9e9bed | 2323 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 2324 | |
649d952d | 2325 | executing_kbd_macro_index++; |
284f4730 JB |
2326 | |
2327 | goto from_macro; | |
2328 | } | |
2329 | ||
cd21b839 JB |
2330 | if (!NILP (unread_switch_frame)) |
2331 | { | |
2332 | c = unread_switch_frame; | |
2333 | unread_switch_frame = Qnil; | |
2334 | ||
2335 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 2336 | again, so we do not set `reread'. */ |
f4255cd1 | 2337 | goto reread_first; |
cd21b839 JB |
2338 | } |
2339 | ||
adc1d5c8 | 2340 | /* if redisplay was requested */ |
6e4e64a8 RS |
2341 | if (commandflag >= 0) |
2342 | { | |
0975aa24 | 2343 | int echo_current = EQ (echo_message_buffer, echo_area_buffer[0]); |
94f9b406 | 2344 | |
adc1d5c8 RS |
2345 | /* If there is pending input, process any events which are not |
2346 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
2347 | if (input_pending |
2348 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 2349 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 2350 | |
adc1d5c8 RS |
2351 | /* Redisplay if no pending input. */ |
2352 | while (!input_pending) | |
2353 | { | |
5295a500 | 2354 | if (help_echo_showing_p && !EQ (selected_window, minibuf_window)) |
3007ebfb | 2355 | redisplay_preserve_echo_area (5); |
5295a500 GM |
2356 | else |
2357 | redisplay (); | |
adc1d5c8 RS |
2358 | |
2359 | if (!input_pending) | |
2360 | /* Normal case: no input arrived during redisplay. */ | |
2361 | break; | |
2362 | ||
2363 | /* Input arrived and pre-empted redisplay. | |
2364 | Process any events which are not user-visible. */ | |
2365 | swallow_events (0); | |
2366 | /* If that cleared input_pending, try again to redisplay. */ | |
2367 | } | |
94f9b406 RS |
2368 | |
2369 | /* Prevent the redisplay we just did | |
2370 | from messing up echoing of the input after the prompt. */ | |
2371 | if (commandflag == 0 && echo_current) | |
2372 | echo_message_buffer = echo_area_buffer[0]; | |
2373 | ||
6e4e64a8 | 2374 | } |
e9bf89a0 | 2375 | |
59a84f8e | 2376 | /* Message turns off echoing unless more keystrokes turn it on again. |
c60ee5e7 | 2377 | |
59a84f8e GM |
2378 | The code in 20.x for the condition was |
2379 | ||
2380 | 1. echo_area_glyphs && *echo_area_glyphs | |
2381 | 2. && echo_area_glyphs != current_kboard->echobuf | |
2382 | 3. && ok_to_echo_at_next_pause != echo_area_glyphs | |
2383 | ||
2384 | (1) means there's a current message displayed | |
c60ee5e7 | 2385 | |
59a84f8e GM |
2386 | (2) means it's not the message from echoing from the current |
2387 | kboard. | |
c60ee5e7 | 2388 | |
59a84f8e GM |
2389 | (3) There's only one place in 20.x where ok_to_echo_at_next_pause |
2390 | is set to a non-null value. This is done in read_char and it is | |
2391 | set to echo_area_glyphs after a call to echo_char. That means | |
2392 | ok_to_echo_at_next_pause is either null or | |
2393 | current_kboard->echobuf with the appropriate current_kboard at | |
2394 | that time. | |
2395 | ||
2396 | So, condition (3) means in clear text ok_to_echo_at_next_pause | |
2397 | must be either null, or the current message isn't from echoing at | |
2398 | all, or it's from echoing from a different kboard than the | |
2399 | current one. */ | |
c60ee5e7 | 2400 | |
27fd22dc | 2401 | if (/* There currently is something in the echo area. */ |
985f9f66 | 2402 | !NILP (echo_area_buffer[0]) |
59a84f8e GM |
2403 | && (/* And it's either not from echoing. */ |
2404 | !EQ (echo_area_buffer[0], echo_message_buffer) | |
2405 | /* Or it's an echo from a different kboard. */ | |
2406 | || echo_kboard != current_kboard | |
2407 | /* Or we explicitly allow overwriting whatever there is. */ | |
2408 | || ok_to_echo_at_next_pause == NULL)) | |
7ee32cda | 2409 | cancel_echoing (); |
410d4de9 | 2410 | else |
410d4de9 | 2411 | echo_dash (); |
c60ee5e7 | 2412 | |
410d4de9 RS |
2413 | /* Try reading a character via menu prompting in the minibuf. |
2414 | Try this before the sit-for, because the sit-for | |
2415 | would do the wrong thing if we are supposed to do | |
2416 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
2417 | after a mouse event so don't try a minibuf menu. */ | |
2418 | c = Qnil; | |
2419 | if (nmaps > 0 && INTERACTIVE | |
2420 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2421 | /* Don't bring up a menu if we already have another event. */ | |
2422 | && NILP (Vunread_command_events) | |
2423 | && unread_command_char < 0 | |
4ec4ed6a | 2424 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2425 | { |
2426 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
9688ff53 KL |
2427 | |
2428 | if (INTEGERP (c) && XINT (c) == -2) | |
2429 | return c; /* wrong_kboard_jmpbuf */ | |
2430 | ||
410d4de9 RS |
2431 | if (! NILP (c)) |
2432 | { | |
2433 | key_already_recorded = 1; | |
2434 | goto non_reread_1; | |
2435 | } | |
2436 | } | |
284f4730 | 2437 | |
410d4de9 RS |
2438 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2439 | We will do that below, temporarily for short sections of code, | |
2440 | when appropriate. local_getcjmp must be in effect | |
2441 | around any call to sit_for or kbd_buffer_get_event; | |
2442 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2443 | |
092869b9 | 2444 | jmpcount = SPECPDL_INDEX (); |
410d4de9 | 2445 | if (_setjmp (local_getcjmp)) |
284f4730 | 2446 | { |
d6805803 | 2447 | /* Handle quits while reading the keyboard. */ |
dfbfad25 RS |
2448 | /* We must have saved the outer value of getcjmp here, |
2449 | so restore it now. */ | |
2450 | restore_getcjmp (save_jump); | |
092869b9 | 2451 | unbind_to (jmpcount, Qnil); |
18cd2eeb | 2452 | XSETINT (c, quit_char); |
788f89eb | 2453 | internal_last_event_frame = selected_frame; |
4c52b668 | 2454 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2455 | /* If we report the quit char as an event, |
2456 | don't do so more than once. */ | |
2457 | if (!NILP (Vinhibit_quit)) | |
2458 | Vquit_flag = Qnil; | |
284f4730 | 2459 | |
df0f2ba1 | 2460 | { |
788f89eb | 2461 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2462 | if (kb != current_kboard) |
df0f2ba1 | 2463 | { |
f3fbd155 | 2464 | Lisp_Object link = kb->kbd_queue; |
1e8bd3da RS |
2465 | /* We shouldn't get here if we were in single-kboard mode! */ |
2466 | if (single_kboard) | |
df0f2ba1 | 2467 | abort (); |
f3fbd155 KR |
2468 | if (CONSP (link)) |
2469 | { | |
2470 | while (CONSP (XCDR (link))) | |
2471 | link = XCDR (link); | |
2472 | if (!NILP (XCDR (link))) | |
2473 | abort (); | |
2474 | } | |
2475 | if (!CONSP (link)) | |
2476 | kb->kbd_queue = Fcons (c, Qnil); | |
2477 | else | |
2478 | XSETCDR (link, Fcons (c, Qnil)); | |
c5fdd383 KH |
2479 | kb->kbd_queue_has_data = 1; |
2480 | current_kboard = kb; | |
ef6661f7 RS |
2481 | /* This is going to exit from read_char |
2482 | so we had better get rid of this frame's stuff. */ | |
2483 | UNGCPRO; | |
9688ff53 | 2484 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
df0f2ba1 KH |
2485 | } |
2486 | } | |
284f4730 JB |
2487 | goto non_reread; |
2488 | } | |
2489 | ||
3236e6b8 CY |
2490 | /* Start idle timers if no time limit is supplied. We don't do it |
2491 | if a time limit is supplied to avoid an infinite recursion in the | |
2492 | situation where an idle timer calls `sit-for'. */ | |
70282fce | 2493 | |
3236e6b8 | 2494 | if (!end_time) |
70282fce | 2495 | timer_start_idle (); |
d9d4c147 | 2496 | |
284f4730 JB |
2497 | /* If in middle of key sequence and minibuffer not active, |
2498 | start echoing if enough time elapses. */ | |
410d4de9 | 2499 | |
c60ee5e7 | 2500 | if (minibuf_level == 0 |
179f689c | 2501 | && !end_time |
7ee32cda | 2502 | && !current_kboard->immediate_echo |
6c6083a9 | 2503 | && this_command_key_count > 0 |
27203ead | 2504 | && ! noninteractive |
f2647d04 DL |
2505 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
2506 | && NILP (Fzerop (Vecho_keystrokes)) | |
985f9f66 GM |
2507 | && (/* No message. */ |
2508 | NILP (echo_area_buffer[0]) | |
2509 | /* Or empty message. */ | |
2510 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2511 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2512 | /* Or already echoing from same kboard. */ | |
2513 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2514 | /* Or not echoing before and echoing allowed. */ | |
2515 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 | 2516 | { |
7d6de002 RS |
2517 | /* After a mouse event, start echoing right away. |
2518 | This is because we are probably about to display a menu, | |
2519 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2520 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2521 | echo_now (); |
7d6de002 RS |
2522 | else |
2523 | { | |
666dc232 KS |
2524 | Lisp_Object tem0; |
2525 | ||
410d4de9 RS |
2526 | save_getcjmp (save_jump); |
2527 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2528 | tem0 = sit_for (Vecho_keystrokes, 1, 1); |
410d4de9 | 2529 | restore_getcjmp (save_jump); |
303b5b3f RS |
2530 | if (EQ (tem0, Qt) |
2531 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2532 | echo_now (); |
7d6de002 | 2533 | } |
284f4730 JB |
2534 | } |
2535 | ||
410d4de9 | 2536 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2537 | |
2538 | if (commandflag != 0 | |
2539 | && auto_save_interval > 0 | |
c43b1734 | 2540 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2541 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2542 | { |
284f4730 | 2543 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2544 | /* Hooks can actually change some buffers in auto save. */ |
2545 | redisplay (); | |
284f4730 JB |
2546 | } |
2547 | ||
8150596a | 2548 | /* Try reading using an X menu. |
24597608 RS |
2549 | This is never confused with reading using the minibuf |
2550 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2551 | does not pass on any keymaps. */ | |
410d4de9 | 2552 | |
24597608 | 2553 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2554 | && !NILP (prev_event) |
2555 | && EVENT_HAS_PARAMETERS (prev_event) | |
7539e11f KR |
2556 | && !EQ (XCAR (prev_event), Qmenu_bar) |
2557 | && !EQ (XCAR (prev_event), Qtool_bar) | |
24597608 RS |
2558 | /* Don't bring up a menu if we already have another event. */ |
2559 | && NILP (Vunread_command_events) | |
b8556aee | 2560 | && unread_command_char < 0) |
8eb4d8ef RS |
2561 | { |
2562 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2563 | ||
2564 | /* Now that we have read an event, Emacs is not idle. */ | |
3236e6b8 CY |
2565 | if (!end_time) |
2566 | timer_stop_idle (); | |
8eb4d8ef | 2567 | |
184c3d81 | 2568 | goto exit; |
8eb4d8ef | 2569 | } |
7d6de002 | 2570 | |
410d4de9 RS |
2571 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2572 | ||
26c1639e | 2573 | if (INTERACTIVE && NILP (c)) |
7d6de002 | 2574 | { |
41118bd3 EZ |
2575 | int delay_level; |
2576 | EMACS_INT buffer_size; | |
7d6de002 | 2577 | |
410d4de9 RS |
2578 | /* Slow down auto saves logarithmically in size of current buffer, |
2579 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2580 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2581 | last_non_minibuf_size = Z - BEG; | |
2582 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2583 | delay_level = 0; | |
2584 | while (buffer_size > 64) | |
2585 | delay_level++, buffer_size -= buffer_size >> 2; | |
2586 | if (delay_level < 4) delay_level = 4; | |
2587 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2588 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2589 | ||
2590 | /* Auto save if enough time goes by without input. */ | |
2591 | if (commandflag != 0 | |
c43b1734 | 2592 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2593 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2594 | && XINT (Vauto_save_timeout) > 0) |
2595 | { | |
2596 | Lisp_Object tem0; | |
666dc232 | 2597 | int timeout = delay_level * XFASTINT (Vauto_save_timeout) / 4; |
410d4de9 RS |
2598 | |
2599 | save_getcjmp (save_jump); | |
2600 | restore_getcjmp (local_getcjmp); | |
666dc232 | 2601 | tem0 = sit_for (make_number (timeout), 1, 1); |
410d4de9 RS |
2602 | restore_getcjmp (save_jump); |
2603 | ||
303b5b3f RS |
2604 | if (EQ (tem0, Qt) |
2605 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2606 | { |
7d6de002 | 2607 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2608 | |
2609 | /* If we have auto-saved and there is still no input | |
2610 | available, garbage collect if there has been enough | |
2611 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2612 | if (!detect_input_pending_run_timers (0) |
c8e16a02 | 2613 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2614 | Fgarbage_collect (); |
410d4de9 | 2615 | |
ef8fd672 | 2616 | redisplay (); |
7d6de002 RS |
2617 | } |
2618 | } | |
2619 | } | |
284f4730 | 2620 | |
67ddbec3 KL |
2621 | /* Notify the caller if an autosave hook, or a timer, sentinel or |
2622 | filter in the sit_for calls above have changed the current | |
2623 | kboard. This could happen if they use the minibuffer or start a | |
2624 | recursive edit, like the fancy splash screen in server.el's | |
2625 | filter. If this longjmp wasn't here, read_key_sequence would | |
2626 | interpret the next key sequence using the wrong translation | |
2627 | tables and function keymaps. */ | |
b3e6f69c KL |
2628 | if (NILP (c) && current_kboard != orig_kboard) |
2629 | { | |
2630 | UNGCPRO; | |
9688ff53 | 2631 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
b3e6f69c KL |
2632 | } |
2633 | ||
303b5b3f RS |
2634 | /* If this has become non-nil here, it has been set by a timer |
2635 | or sentinel or filter. */ | |
2636 | if (CONSP (Vunread_command_events)) | |
2637 | { | |
7539e11f KR |
2638 | c = XCAR (Vunread_command_events); |
2639 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
2640 | } |
2641 | ||
410d4de9 RS |
2642 | /* Read something from current KBOARD's side queue, if possible. */ |
2643 | ||
beecf6a1 | 2644 | if (NILP (c)) |
1e12dd87 | 2645 | { |
c5fdd383 | 2646 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2647 | { |
c5fdd383 | 2648 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2649 | abort (); |
7539e11f | 2650 | c = XCAR (current_kboard->kbd_queue); |
c5fdd383 | 2651 | current_kboard->kbd_queue |
7539e11f | 2652 | = XCDR (current_kboard->kbd_queue); |
c5fdd383 KH |
2653 | if (NILP (current_kboard->kbd_queue)) |
2654 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2655 | input_pending = readable_events (0); |
4c52b668 KH |
2656 | if (EVENT_HAS_PARAMETERS (c) |
2657 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
7539e11f | 2658 | internal_last_event_frame = XCAR (XCDR (c)); |
4c52b668 | 2659 | Vlast_event_frame = internal_last_event_frame; |
beecf6a1 | 2660 | } |
1e8bd3da RS |
2661 | } |
2662 | ||
1e8bd3da RS |
2663 | /* If current_kboard's side queue is empty check the other kboards. |
2664 | If one of them has data that we have not yet seen here, | |
2665 | switch to it and process the data waiting for it. | |
2666 | ||
2667 | Note: if the events queued up for another kboard | |
2668 | have already been seen here, and therefore are not a complete command, | |
2669 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2670 | That's to avoid an infinite loop switching between kboards here. */ | |
2671 | if (NILP (c) && !single_kboard) | |
2672 | { | |
2673 | KBOARD *kb; | |
2674 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2675 | if (kb->kbd_queue_has_data) | |
2676 | { | |
2677 | current_kboard = kb; | |
ef6661f7 RS |
2678 | /* This is going to exit from read_char |
2679 | so we had better get rid of this frame's stuff. */ | |
2680 | UNGCPRO; | |
9688ff53 | 2681 | return make_number (-2); /* wrong_kboard_jmpbuf */ |
1e8bd3da RS |
2682 | } |
2683 | } | |
df0f2ba1 | 2684 | |
410d4de9 RS |
2685 | wrong_kboard: |
2686 | ||
184c3d81 | 2687 | STOP_POLLING; |
410d4de9 | 2688 | |
1e8bd3da RS |
2689 | /* Finally, we read from the main queue, |
2690 | and if that gives us something we can't use yet, we put it on the | |
2691 | appropriate side queue and try again. */ | |
410d4de9 | 2692 | |
1e8bd3da RS |
2693 | if (NILP (c)) |
2694 | { | |
2695 | KBOARD *kb; | |
2696 | ||
179f689c CY |
2697 | if (end_time) |
2698 | { | |
2699 | EMACS_TIME now; | |
2700 | EMACS_GET_TIME (now); | |
2701 | if (EMACS_TIME_GE (now, *end_time)) | |
2702 | goto exit; | |
2703 | } | |
2704 | ||
1e8bd3da | 2705 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2706 | save_getcjmp (save_jump); |
2707 | restore_getcjmp (local_getcjmp); | |
3236e6b8 | 2708 | if (!end_time) |
70282fce | 2709 | timer_start_idle (); |
179f689c | 2710 | c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time); |
410d4de9 RS |
2711 | restore_getcjmp (save_jump); |
2712 | ||
410d4de9 | 2713 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da | 2714 | { |
f3fbd155 KR |
2715 | Lisp_Object link = kb->kbd_queue; |
2716 | if (CONSP (link)) | |
2717 | { | |
2718 | while (CONSP (XCDR (link))) | |
2719 | link = XCDR (link); | |
2720 | if (!NILP (XCDR (link))) | |
2721 | abort (); | |
2722 | } | |
2723 | if (!CONSP (link)) | |
2724 | kb->kbd_queue = Fcons (c, Qnil); | |
2725 | else | |
2726 | XSETCDR (link, Fcons (c, Qnil)); | |
1e8bd3da | 2727 | kb->kbd_queue_has_data = 1; |
46b84797 | 2728 | c = Qnil; |
1e8bd3da RS |
2729 | if (single_kboard) |
2730 | goto wrong_kboard; | |
2731 | current_kboard = kb; | |
ef6661f7 RS |
2732 | /* This is going to exit from read_char |
2733 | so we had better get rid of this frame's stuff. */ | |
2734 | UNGCPRO; | |
9688ff53 | 2735 | return make_number (-2); |
df0f2ba1 | 2736 | } |
beecf6a1 | 2737 | } |
1e8bd3da | 2738 | |
284f4730 | 2739 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2740 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2741 | Fkill_emacs (make_number (1)); |
2742 | ||
8c18cbfb | 2743 | if (INTEGERP (c)) |
80645119 JB |
2744 | { |
2745 | /* Add in any extra modifiers, where appropriate. */ | |
2746 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2747 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2748 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2749 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2750 | |
2751 | /* Transfer any other modifier bits directly from | |
2752 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2753 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2754 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2755 | } |
9fa4395d | 2756 | |
284f4730 JB |
2757 | non_reread: |
2758 | ||
3236e6b8 CY |
2759 | if (!end_time) |
2760 | timer_stop_idle (); | |
184c3d81 | 2761 | RESUME_POLLING; |
284f4730 | 2762 | |
410d4de9 RS |
2763 | if (NILP (c)) |
2764 | { | |
2765 | if (commandflag >= 0 | |
4ec4ed6a | 2766 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2767 | redisplay (); |
2768 | ||
2769 | goto wrong_kboard; | |
2770 | } | |
2771 | ||
2772 | non_reread_1: | |
2773 | ||
dfd11da7 | 2774 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2775 | so don't show them to the user. |
2776 | Also, don't record a key if we already did. */ | |
2777 | if (BUFFERP (c) || key_already_recorded) | |
184c3d81 | 2778 | goto exit; |
a1341f75 | 2779 | |
7f07d5ca RS |
2780 | /* Process special events within read_char |
2781 | and loop around to read another event. */ | |
017c7cb6 RS |
2782 | save = Vquit_flag; |
2783 | Vquit_flag = Qnil; | |
02067692 | 2784 | tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1); |
017c7cb6 | 2785 | Vquit_flag = save; |
7f07d5ca RS |
2786 | |
2787 | if (!NILP (tem)) | |
2788 | { | |
4a00eaca | 2789 | struct buffer *prev_buffer = current_buffer; |
b3e6f69c | 2790 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 | 2791 | int was_locked = single_kboard; |
b3e6f69c KL |
2792 | int count = SPECPDL_INDEX (); |
2793 | record_single_kboard_state (); | |
2794 | #endif | |
033b73e2 | 2795 | |
4b09796d GM |
2796 | last_input_event = c; |
2797 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_event), Qt); | |
ba8dfba8 | 2798 | |
3236e6b8 | 2799 | if (CONSP (c) && EQ (XCAR (c), Qselect_window) && !end_time) |
5d12f14d EZ |
2800 | /* We stopped being idle for this event; undo that. This |
2801 | prevents automatic window selection (under | |
0b9a1d3d | 2802 | mouse_autoselect_window from acting as a real input event, for |
5d12f14d | 2803 | example banishing the mouse under mouse-avoidance-mode. */ |
5c12e63f | 2804 | timer_resume_idle (); |
5d12f14d | 2805 | |
b3e6f69c | 2806 | #if 0 /* This shouldn't be necessary anymore. --lorentey */ |
ba8dfba8 RS |
2807 | /* Resume allowing input from any kboard, if that was true before. */ |
2808 | if (!was_locked) | |
2809 | any_kboard_state (); | |
b3e6f69c KL |
2810 | unbind_to (count, Qnil); |
2811 | #endif | |
ba8dfba8 | 2812 | |
4a00eaca YM |
2813 | if (current_buffer != prev_buffer) |
2814 | { | |
2815 | /* The command may have changed the keymaps. Pretend there | |
2816 | is input in another keyboard and return. This will | |
2817 | recalculate keymaps. */ | |
2818 | c = make_number (-2); | |
2819 | goto exit; | |
2820 | } | |
2821 | else | |
2822 | goto retry; | |
7f07d5ca RS |
2823 | } |
2824 | ||
284f4730 | 2825 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2826 | if (INTEGERP (c)) |
284f4730 JB |
2827 | { |
2828 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2829 | if (XINT (c) == -1) |
184c3d81 | 2830 | goto exit; |
284f4730 | 2831 | |
2e478293 KL |
2832 | if ((STRINGP (current_kboard->Vkeyboard_translate_table) |
2833 | && SCHARS (current_kboard->Vkeyboard_translate_table) > (unsigned) XFASTINT (c)) | |
2834 | || (VECTORP (current_kboard->Vkeyboard_translate_table) | |
2835 | && XVECTOR (current_kboard->Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2836 | || (CHAR_TABLE_P (current_kboard->Vkeyboard_translate_table) | |
dbcf4347 | 2837 | && CHARACTERP (c))) |
f9414d62 RS |
2838 | { |
2839 | Lisp_Object d; | |
2e478293 | 2840 | d = Faref (current_kboard->Vkeyboard_translate_table, c); |
f9414d62 RS |
2841 | /* nil in keyboard-translate-table means no translation. */ |
2842 | if (!NILP (d)) | |
2843 | c = d; | |
2844 | } | |
284f4730 JB |
2845 | } |
2846 | ||
e4fe371d RS |
2847 | /* If this event is a mouse click in the menu bar, |
2848 | return just menu-bar for now. Modify the mouse click event | |
2849 | so we won't do this twice, then queue it up. */ | |
2850 | if (EVENT_HAS_PARAMETERS (c) | |
7539e11f | 2851 | && CONSP (XCDR (c)) |
e4fe371d | 2852 | && CONSP (EVENT_START (c)) |
7539e11f | 2853 | && CONSP (XCDR (EVENT_START (c)))) |
284f4730 | 2854 | { |
e4fe371d | 2855 | Lisp_Object posn; |
284f4730 | 2856 | |
6b61353c | 2857 | posn = POSN_POSN (EVENT_START (c)); |
e4fe371d RS |
2858 | /* Handle menu-bar events: |
2859 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2860 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2861 | { |
2862 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
6b61353c | 2863 | POSN_SET_POSN (EVENT_START (c), Fcons (posn, Qnil)); |
284f4730 | 2864 | |
e4fe371d RS |
2865 | also_record = c; |
2866 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2867 | c = posn; | |
284f4730 | 2868 | } |
284f4730 JB |
2869 | } |
2870 | ||
7d18f9ae RS |
2871 | /* Store these characters into recent_keys, the dribble file if any, |
2872 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2873 | record_char (c); |
2874 | if (! NILP (also_record)) | |
2875 | record_char (also_record); | |
51172b6d | 2876 | |
d5eecefb RS |
2877 | /* Wipe the echo area. |
2878 | But first, if we are about to use an input method, | |
2879 | save the echo area contents for it to refer to. */ | |
2880 | if (INTEGERP (c) | |
2881 | && ! NILP (Vinput_method_function) | |
2882 | && (unsigned) XINT (c) >= ' ' | |
8d769115 KH |
2883 | && (unsigned) XINT (c) != 127 |
2884 | && (unsigned) XINT (c) < 256) | |
7ee32cda GM |
2885 | { |
2886 | previous_echo_area_message = Fcurrent_message (); | |
2887 | Vinput_method_previous_message = previous_echo_area_message; | |
2888 | } | |
d5eecefb | 2889 | |
1172eb8d GM |
2890 | /* Now wipe the echo area, except for help events which do their |
2891 | own stuff with the echo area. */ | |
4d2e9f95 GM |
2892 | if (!CONSP (c) |
2893 | || (!(EQ (Qhelp_echo, XCAR (c))) | |
2894 | && !(EQ (Qswitch_frame, XCAR (c))))) | |
1172eb8d GM |
2895 | { |
2896 | if (!NILP (echo_area_buffer[0])) | |
2897 | safe_run_hooks (Qecho_area_clear_hook); | |
2898 | clear_message (1, 0); | |
2899 | } | |
d5eecefb | 2900 | |
7d18f9ae | 2901 | reread_for_input_method: |
284f4730 | 2902 | from_macro: |
7d18f9ae | 2903 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2904 | if (INTEGERP (c) |
2905 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2906 | /* Don't run the input method within a key sequence, |
2907 | after the first event of the key sequence. */ | |
2908 | && NILP (prev_event) | |
d5eecefb | 2909 | && (unsigned) XINT (c) >= ' ' |
8d769115 KH |
2910 | && (unsigned) XINT (c) != 127 |
2911 | && (unsigned) XINT (c) < 256) | |
d5eecefb | 2912 | { |
c60ee5e7 | 2913 | Lisp_Object keys; |
63020c46 | 2914 | int key_count, key_count_reset; |
d5eecefb | 2915 | struct gcpro gcpro1; |
aed13378 | 2916 | int count = SPECPDL_INDEX (); |
d5eecefb | 2917 | |
6e5742a0 RS |
2918 | /* Save the echo status. */ |
2919 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2920 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
dc29116a | 2921 | Lisp_Object saved_echo_string = current_kboard->echo_string; |
6e5742a0 RS |
2922 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2923 | ||
22b94eeb | 2924 | #if 0 |
6e5742a0 RS |
2925 | if (before_command_restore_flag) |
2926 | { | |
2927 | this_command_key_count = before_command_key_count_1; | |
2928 | if (this_command_key_count < this_single_command_key_start) | |
2929 | this_single_command_key_start = this_command_key_count; | |
2930 | echo_truncate (before_command_echo_length_1); | |
2931 | before_command_restore_flag = 0; | |
2932 | } | |
22b94eeb | 2933 | #endif |
6e5742a0 RS |
2934 | |
2935 | /* Save the this_command_keys status. */ | |
2936 | key_count = this_command_key_count; | |
63020c46 | 2937 | key_count_reset = this_command_key_count_reset; |
6e5742a0 RS |
2938 | |
2939 | if (key_count > 0) | |
2940 | keys = Fcopy_sequence (this_command_keys); | |
2941 | else | |
2942 | keys = Qnil; | |
d5eecefb | 2943 | GCPRO1 (keys); |
6e5742a0 RS |
2944 | |
2945 | /* Clear out this_command_keys. */ | |
2946 | this_command_key_count = 0; | |
63020c46 | 2947 | this_command_key_count_reset = 0; |
6e5742a0 RS |
2948 | |
2949 | /* Now wipe the echo area. */ | |
985f9f66 | 2950 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2951 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2952 | clear_message (1, 0); |
6e5742a0 RS |
2953 | echo_truncate (0); |
2954 | ||
b638f328 RS |
2955 | /* If we are not reading a key sequence, |
2956 | never use the echo area. */ | |
2957 | if (maps == 0) | |
2958 | { | |
b638f328 RS |
2959 | specbind (Qinput_method_use_echo_area, Qt); |
2960 | } | |
2961 | ||
6e5742a0 | 2962 | /* Call the input method. */ |
d5eecefb | 2963 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2964 | |
2965 | tem = unbind_to (count, tem); | |
2966 | ||
6e5742a0 RS |
2967 | /* Restore the saved echoing state |
2968 | and this_command_keys state. */ | |
2969 | this_command_key_count = key_count; | |
63020c46 | 2970 | this_command_key_count_reset = key_count_reset; |
6e5742a0 RS |
2971 | if (key_count > 0) |
2972 | this_command_keys = keys; | |
2973 | ||
2974 | cancel_echoing (); | |
2975 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
dc29116a | 2976 | current_kboard->echo_string = saved_echo_string; |
6e5742a0 RS |
2977 | current_kboard->echo_after_prompt = saved_echo_after_prompt; |
2978 | if (saved_immediate_echo) | |
2979 | echo_now (); | |
2980 | ||
d5eecefb | 2981 | UNGCPRO; |
6e5742a0 | 2982 | |
d5eecefb RS |
2983 | /* The input method can return no events. */ |
2984 | if (! CONSP (tem)) | |
7d18f9ae | 2985 | { |
d5eecefb | 2986 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2987 | if (! NILP (previous_echo_area_message)) |
2988 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2989 | goto retry; |
7d18f9ae | 2990 | } |
d5eecefb | 2991 | /* It returned one event or more. */ |
7539e11f | 2992 | c = XCAR (tem); |
d5eecefb | 2993 | Vunread_post_input_method_events |
7539e11f | 2994 | = nconc2 (XCDR (tem), Vunread_post_input_method_events); |
7d18f9ae | 2995 | } |
7c3bc944 | 2996 | |
7d18f9ae | 2997 | reread_first: |
284f4730 | 2998 | |
7ee32cda | 2999 | /* Display help if not echoing. */ |
1172eb8d | 3000 | if (CONSP (c) && EQ (XCAR (c), Qhelp_echo)) |
7ee32cda | 3001 | { |
2190735a | 3002 | /* (help-echo FRAME HELP WINDOW OBJECT POS). */ |
d31053f9 RS |
3003 | Lisp_Object help, object, position, window, tem; |
3004 | ||
3005 | tem = Fcdr (XCDR (c)); | |
3006 | help = Fcar (tem); | |
3007 | tem = Fcdr (tem); | |
3008 | window = Fcar (tem); | |
3009 | tem = Fcdr (tem); | |
3010 | object = Fcar (tem); | |
3011 | tem = Fcdr (tem); | |
3012 | position = Fcar (tem); | |
3013 | ||
2190735a | 3014 | show_help_echo (help, window, object, position, 0); |
fdbb67fe GM |
3015 | |
3016 | /* We stopped being idle for this event; undo that. */ | |
3236e6b8 CY |
3017 | if (!end_time) |
3018 | timer_resume_idle (); | |
7ee32cda GM |
3019 | goto retry; |
3020 | } | |
c60ee5e7 | 3021 | |
4c0240d2 RS |
3022 | if ((! reread || this_command_key_count == 0 |
3023 | || this_command_key_count_reset) | |
3024 | && !end_time) | |
e4fe371d | 3025 | { |
7d18f9ae RS |
3026 | |
3027 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3028 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3029 | && NILP (Fzerop (Vecho_keystrokes)) | |
7d18f9ae RS |
3030 | && ! (EVENT_HAS_PARAMETERS (c) |
3031 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
3032 | { | |
3033 | echo_char (c); | |
3034 | if (! NILP (also_record)) | |
3035 | echo_char (also_record); | |
3036 | /* Once we reread a character, echoing can happen | |
3037 | the next time we pause to read a new one. */ | |
985f9f66 | 3038 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
3039 | } |
3040 | ||
3041 | /* Record this character as part of the current key. */ | |
3042 | add_command_key (c); | |
e4fe371d | 3043 | if (! NILP (also_record)) |
7d18f9ae | 3044 | add_command_key (also_record); |
e4fe371d | 3045 | } |
b8556aee | 3046 | |
4b09796d | 3047 | last_input_event = c; |
c43b1734 | 3048 | num_input_events++; |
284f4730 JB |
3049 | |
3050 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 3051 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
3052 | { |
3053 | Lisp_Object tem0; | |
aed13378 | 3054 | count = SPECPDL_INDEX (); |
284f4730 | 3055 | |
638d3da0 CY |
3056 | help_form_saved_window_configs |
3057 | = Fcons (Fcurrent_window_configuration (Qnil), | |
3058 | help_form_saved_window_configs); | |
3059 | record_unwind_protect (read_char_help_form_unwind, Qnil); | |
284f4730 JB |
3060 | |
3061 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 3062 | if (STRINGP (tem0)) |
284f4730 JB |
3063 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
3064 | ||
3065 | cancel_echoing (); | |
3cb81011 | 3066 | do |
638d3da0 CY |
3067 | { |
3068 | c = read_char (0, 0, 0, Qnil, 0, NULL); | |
3069 | if (EVENT_HAS_PARAMETERS (c) | |
3070 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_click)) | |
3071 | XSETCAR (help_form_saved_window_configs, Qnil); | |
3072 | } | |
8c18cbfb | 3073 | while (BUFFERP (c)); |
ff11dfa1 | 3074 | /* Remove the help from the frame */ |
284f4730 | 3075 | unbind_to (count, Qnil); |
410d4de9 | 3076 | |
284f4730 JB |
3077 | redisplay (); |
3078 | if (EQ (c, make_number (040))) | |
3079 | { | |
3080 | cancel_echoing (); | |
3cb81011 | 3081 | do |
179f689c | 3082 | c = read_char (0, 0, 0, Qnil, 0, NULL); |
8c18cbfb | 3083 | while (BUFFERP (c)); |
284f4730 JB |
3084 | } |
3085 | } | |
3086 | ||
184c3d81 RS |
3087 | exit: |
3088 | RESUME_POLLING; | |
7c3bc944 | 3089 | RETURN_UNGCPRO (c); |
284f4730 JB |
3090 | } |
3091 | ||
8eb4d8ef RS |
3092 | /* Record a key that came from a mouse menu. |
3093 | Record it for echoing, for this-command-keys, and so on. */ | |
3094 | ||
3095 | static void | |
d3da34e0 | 3096 | record_menu_key (Lisp_Object c) |
8eb4d8ef RS |
3097 | { |
3098 | /* Wipe the echo area. */ | |
985f9f66 | 3099 | clear_message (1, 0); |
8eb4d8ef RS |
3100 | |
3101 | record_char (c); | |
3102 | ||
22b94eeb | 3103 | #if 0 |
8eb4d8ef RS |
3104 | before_command_key_count = this_command_key_count; |
3105 | before_command_echo_length = echo_length (); | |
22b94eeb | 3106 | #endif |
8eb4d8ef RS |
3107 | |
3108 | /* Don't echo mouse motion events. */ | |
f2647d04 DL |
3109 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
3110 | && NILP (Fzerop (Vecho_keystrokes))) | |
8eb4d8ef RS |
3111 | { |
3112 | echo_char (c); | |
3113 | ||
3114 | /* Once we reread a character, echoing can happen | |
3115 | the next time we pause to read a new one. */ | |
3116 | ok_to_echo_at_next_pause = 0; | |
3117 | } | |
3118 | ||
3119 | /* Record this character as part of the current key. */ | |
3120 | add_command_key (c); | |
3121 | ||
3122 | /* Re-reading in the middle of a command */ | |
4b09796d | 3123 | last_input_event = c; |
c43b1734 | 3124 | num_input_events++; |
8eb4d8ef RS |
3125 | } |
3126 | ||
ecb7cb34 KH |
3127 | /* Return 1 if should recognize C as "the help character". */ |
3128 | ||
3129 | int | |
d3da34e0 | 3130 | help_char_p (Lisp_Object c) |
ecb7cb34 KH |
3131 | { |
3132 | Lisp_Object tail; | |
3133 | ||
3134 | if (EQ (c, Vhelp_char)) | |
3135 | return 1; | |
7539e11f KR |
3136 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail)) |
3137 | if (EQ (c, XCAR (tail))) | |
ecb7cb34 KH |
3138 | return 1; |
3139 | return 0; | |
3140 | } | |
3141 | ||
e4fe371d RS |
3142 | /* Record the input event C in various ways. */ |
3143 | ||
3144 | static void | |
d3da34e0 | 3145 | record_char (Lisp_Object c) |
e4fe371d | 3146 | { |
090c68b9 | 3147 | int recorded = 0; |
52be17cc | 3148 | |
090c68b9 KS |
3149 | if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement))) |
3150 | { | |
3151 | /* To avoid filling recent_keys with help-echo and mouse-movement | |
3152 | events, we filter out repeated help-echo events, only store the | |
3153 | first and last in a series of mouse-movement events, and don't | |
3154 | store repeated help-echo events which are only separated by | |
3155 | mouse-movement events. */ | |
3156 | ||
3157 | Lisp_Object ev1, ev2, ev3; | |
3158 | int ix1, ix2, ix3; | |
c60ee5e7 | 3159 | |
090c68b9 KS |
3160 | if ((ix1 = recent_keys_index - 1) < 0) |
3161 | ix1 = NUM_RECENT_KEYS - 1; | |
3162 | ev1 = AREF (recent_keys, ix1); | |
c60ee5e7 | 3163 | |
090c68b9 KS |
3164 | if ((ix2 = ix1 - 1) < 0) |
3165 | ix2 = NUM_RECENT_KEYS - 1; | |
3166 | ev2 = AREF (recent_keys, ix2); | |
c60ee5e7 | 3167 | |
090c68b9 KS |
3168 | if ((ix3 = ix2 - 1) < 0) |
3169 | ix3 = NUM_RECENT_KEYS - 1; | |
3170 | ev3 = AREF (recent_keys, ix3); | |
c60ee5e7 | 3171 | |
090c68b9 KS |
3172 | if (EQ (XCAR (c), Qhelp_echo)) |
3173 | { | |
3174 | /* Don't record `help-echo' in recent_keys unless it shows some help | |
a978004d | 3175 | message, and a different help than the previously recorded |
090c68b9 KS |
3176 | event. */ |
3177 | Lisp_Object help, last_help; | |
3178 | ||
3179 | help = Fcar_safe (Fcdr_safe (XCDR (c))); | |
3180 | if (!STRINGP (help)) | |
3181 | recorded = 1; | |
3182 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo) | |
3183 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help))) | |
3184 | recorded = 1; | |
3185 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3186 | && CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo) | |
3187 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help))) | |
3188 | recorded = -1; | |
3189 | else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3190 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3191 | && CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo) | |
3192 | && (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help))) | |
3193 | recorded = -2; | |
3194 | } | |
3195 | else if (EQ (XCAR (c), Qmouse_movement)) | |
52be17cc | 3196 | { |
090c68b9 KS |
3197 | /* Only record one pair of `mouse-movement' on a window in recent_keys. |
3198 | So additional mouse movement events replace the last element. */ | |
3199 | Lisp_Object last_window, window; | |
3200 | ||
3201 | window = Fcar_safe (Fcar_safe (XCDR (c))); | |
3202 | if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement) | |
3203 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window)) | |
3204 | && CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement) | |
3205 | && (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window))) | |
52be17cc | 3206 | { |
090c68b9 KS |
3207 | ASET (recent_keys, ix1, c); |
3208 | recorded = 1; | |
52be17cc GM |
3209 | } |
3210 | } | |
3211 | } | |
3212 | else | |
090c68b9 KS |
3213 | store_kbd_macro_char (c); |
3214 | ||
3215 | if (!recorded) | |
e8a50785 GM |
3216 | { |
3217 | total_keys++; | |
3218 | ASET (recent_keys, recent_keys_index, c); | |
3219 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
3220 | recent_keys_index = 0; | |
3221 | } | |
090c68b9 KS |
3222 | else if (recorded < 0) |
3223 | { | |
3224 | /* We need to remove one or two events from recent_keys. | |
3225 | To do this, we simply put nil at those events and move the | |
3226 | recent_keys_index backwards over those events. Usually, | |
3227 | users will never see those nil events, as they will be | |
3228 | overwritten by the command keys entered to see recent_keys | |
3229 | (e.g. C-h l). */ | |
3230 | ||
3231 | while (recorded++ < 0 && total_keys > 0) | |
3232 | { | |
3233 | if (total_keys < NUM_RECENT_KEYS) | |
3234 | total_keys--; | |
3235 | if (--recent_keys_index < 0) | |
3236 | recent_keys_index = NUM_RECENT_KEYS - 1; | |
3237 | ASET (recent_keys, recent_keys_index, Qnil); | |
3238 | } | |
3239 | } | |
3240 | ||
3241 | num_nonmacro_input_events++; | |
c60ee5e7 | 3242 | |
e4fe371d RS |
3243 | /* Write c to the dribble file. If c is a lispy event, write |
3244 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
3245 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
3246 | if (dribble) | |
3247 | { | |
34f5c10f | 3248 | BLOCK_INPUT; |
e4fe371d RS |
3249 | if (INTEGERP (c)) |
3250 | { | |
3251 | if (XUINT (c) < 0x100) | |
3252 | putc (XINT (c), dribble); | |
3253 | else | |
6de34814 | 3254 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
3255 | } |
3256 | else | |
3257 | { | |
3258 | Lisp_Object dribblee; | |
3259 | ||
3260 | /* If it's a structured event, take the event header. */ | |
3261 | dribblee = EVENT_HEAD (c); | |
3262 | ||
3263 | if (SYMBOLP (dribblee)) | |
3264 | { | |
3265 | putc ('<', dribble); | |
d5db4077 KR |
3266 | fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char), |
3267 | SBYTES (SYMBOL_NAME (dribblee)), | |
e4fe371d RS |
3268 | dribble); |
3269 | putc ('>', dribble); | |
3270 | } | |
3271 | } | |
3272 | ||
3273 | fflush (dribble); | |
34f5c10f | 3274 | UNBLOCK_INPUT; |
e4fe371d | 3275 | } |
e4fe371d RS |
3276 | } |
3277 | ||
284f4730 | 3278 | Lisp_Object |
d3da34e0 | 3279 | print_help (Lisp_Object object) |
284f4730 | 3280 | { |
622de3e9 | 3281 | struct buffer *old = current_buffer; |
284f4730 | 3282 | Fprinc (object, Qnil); |
622de3e9 KH |
3283 | set_buffer_internal (XBUFFER (Vstandard_output)); |
3284 | call0 (intern ("help-mode")); | |
3285 | set_buffer_internal (old); | |
284f4730 JB |
3286 | return Qnil; |
3287 | } | |
3288 | ||
3289 | /* Copy out or in the info on where C-g should throw to. | |
3290 | This is used when running Lisp code from within get_char, | |
3291 | in case get_char is called recursively. | |
3292 | See read_process_output. */ | |
3293 | ||
dfcf069d | 3294 | static void |
d3da34e0 | 3295 | save_getcjmp (jmp_buf temp) |
284f4730 | 3296 | { |
72af86bd | 3297 | memcpy (temp, getcjmp, sizeof getcjmp); |
284f4730 JB |
3298 | } |
3299 | ||
dfcf069d | 3300 | static void |
d3da34e0 | 3301 | restore_getcjmp (jmp_buf temp) |
284f4730 | 3302 | { |
72af86bd | 3303 | memcpy (getcjmp, temp, sizeof getcjmp); |
284f4730 | 3304 | } |
284f4730 | 3305 | \f |
a612e298 RS |
3306 | /* Low level keyboard/mouse input. |
3307 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 3308 | kbd_buffer_get_event retrieves them. */ |
a612e298 | 3309 | |
e0f24100 | 3310 | /* Return true if there are any events in the queue that read-char |
a612e298 RS |
3311 | would return. If this returns false, a read-char would block. */ |
3312 | static int | |
d3da34e0 | 3313 | readable_events (int flags) |
a612e298 | 3314 | { |
a2d5fca0 JD |
3315 | if (flags & READABLE_EVENTS_DO_TIMERS_NOW) |
3316 | timer_check (1); | |
4ec4ed6a | 3317 | |
a2d5fca0 JD |
3318 | /* If the buffer contains only FOCUS_IN_EVENT events, and |
3319 | READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */ | |
beecf6a1 | 3320 | if (kbd_fetch_ptr != kbd_store_ptr) |
a0ba8995 | 3321 | { |
354344a2 YM |
3322 | if (flags & (READABLE_EVENTS_FILTER_EVENTS |
3323 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3324 | | READABLE_EVENTS_IGNORE_SQUEEZABLES | |
3325 | #endif | |
3326 | )) | |
20057d52 JD |
3327 | { |
3328 | struct input_event *event; | |
3329 | ||
3330 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) | |
3331 | ? kbd_fetch_ptr | |
3332 | : kbd_buffer); | |
3333 | ||
354344a2 YM |
3334 | do |
3335 | { | |
3336 | if (!( | |
3337 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3338 | (flags & READABLE_EVENTS_FILTER_EVENTS) && | |
3339 | #endif | |
3340 | event->kind == FOCUS_IN_EVENT) | |
3341 | #ifdef USE_TOOLKIT_SCROLL_BARS | |
3342 | && !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) | |
3343 | && event->kind == SCROLL_BAR_CLICK_EVENT | |
3344 | && event->part == scroll_bar_handle | |
3345 | && event->modifiers == 0) | |
3346 | #endif | |
3347 | ) | |
3348 | return 1; | |
3349 | event++; | |
20057d52 JD |
3350 | if (event == kbd_buffer + KBD_BUFFER_SIZE) |
3351 | event = kbd_buffer; | |
354344a2 YM |
3352 | } |
3353 | while (event != kbd_store_ptr); | |
20057d52 | 3354 | } |
354344a2 YM |
3355 | else |
3356 | return 1; | |
a0ba8995 RS |
3357 | } |
3358 | ||
ae372f41 | 3359 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a2d5fca0 JD |
3360 | if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES) |
3361 | && !NILP (do_mouse_tracking) && some_mouse_moved ()) | |
beecf6a1 KH |
3362 | return 1; |
3363 | #endif | |
1e8bd3da | 3364 | if (single_kboard) |
4c52b668 | 3365 | { |
c5fdd383 | 3366 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
3367 | return 1; |
3368 | } | |
3369 | else | |
3370 | { | |
c5fdd383 KH |
3371 | KBOARD *kb; |
3372 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
3373 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
3374 | return 1; |
3375 | } | |
beecf6a1 | 3376 | return 0; |
a612e298 RS |
3377 | } |
3378 | ||
3379 | /* Set this for debugging, to have a way to get out */ | |
3380 | int stop_character; | |
284f4730 | 3381 | |
c5fdd383 | 3382 | static KBOARD * |
d3da34e0 | 3383 | event_to_kboard (struct input_event *event) |
5798cf15 KH |
3384 | { |
3385 | Lisp_Object frame; | |
3386 | frame = event->frame_or_window; | |
3387 | if (CONSP (frame)) | |
7539e11f | 3388 | frame = XCAR (frame); |
5798cf15 KH |
3389 | else if (WINDOWP (frame)) |
3390 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
3391 | ||
3392 | /* There are still some events that don't set this field. | |
f5b56972 KH |
3393 | For now, just ignore the problem. |
3394 | Also ignore dead frames here. */ | |
3395 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
3396 | return 0; |
3397 | else | |
c5fdd383 | 3398 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 | 3399 | } |
5798cf15 | 3400 | |
86520d8c | 3401 | #ifdef subprocesses |
cb768704 J |
3402 | /* Return the number of slots occupied in kbd_buffer. */ |
3403 | ||
3404 | static int | |
6f704c76 | 3405 | kbd_buffer_nr_stored (void) |
cb768704 J |
3406 | { |
3407 | return kbd_fetch_ptr == kbd_store_ptr | |
3408 | ? 0 | |
3409 | : (kbd_fetch_ptr < kbd_store_ptr | |
3410 | ? kbd_store_ptr - kbd_fetch_ptr | |
3411 | : ((kbd_buffer + KBD_BUFFER_SIZE) - kbd_fetch_ptr | |
3412 | + (kbd_store_ptr - kbd_buffer))); | |
3413 | } | |
29208e82 | 3414 | #endif /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
284f4730 JB |
3415 | |
3416 | void | |
d3da34e0 | 3417 | kbd_buffer_store_event (register struct input_event *event) |
6b61353c KH |
3418 | { |
3419 | kbd_buffer_store_event_hold (event, 0); | |
3420 | } | |
3421 | ||
3422 | /* Store EVENT obtained at interrupt level into kbd_buffer, fifo. | |
3423 | ||
3424 | If HOLD_QUIT is 0, just stuff EVENT into the fifo. | |
3425 | Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT. | |
3426 | Else, if EVENT is a quit event, store the quit event | |
3427 | in HOLD_QUIT, and return (thus ignoring further events). | |
3428 | ||
3429 | This is used in read_avail_input to postpone the processing | |
3430 | of the quit event until all subsequent input events have been | |
3431 | parsed (and discarded). | |
3432 | */ | |
3433 | ||
3434 | void | |
d3da34e0 JB |
3435 | kbd_buffer_store_event_hold (register struct input_event *event, |
3436 | struct input_event *hold_quit) | |
284f4730 | 3437 | { |
3b8f9651 | 3438 | if (event->kind == NO_EVENT) |
284f4730 JB |
3439 | abort (); |
3440 | ||
6b61353c KH |
3441 | if (hold_quit && hold_quit->kind != NO_EVENT) |
3442 | return; | |
3443 | ||
3b8f9651 | 3444 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
284f4730 | 3445 | { |
e9bf89a0 | 3446 | register int c = event->code & 0377; |
284f4730 | 3447 | |
faf5e407 JB |
3448 | if (event->modifiers & ctrl_modifier) |
3449 | c = make_ctrl_char (c); | |
3450 | ||
9fd7d808 RS |
3451 | c |= (event->modifiers |
3452 | & (meta_modifier | alt_modifier | |
3453 | | hyper_modifier | super_modifier)); | |
3454 | ||
86e5706b | 3455 | if (c == quit_char) |
284f4730 | 3456 | { |
d6805803 | 3457 | KBOARD *kb = FRAME_KBOARD (XFRAME (event->frame_or_window)); |
5798cf15 KH |
3458 | struct input_event *sp; |
3459 | ||
d6805803 | 3460 | if (single_kboard && kb != current_kboard) |
5798cf15 | 3461 | { |
c5fdd383 | 3462 | kb->kbd_queue |
5798cf15 KH |
3463 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
3464 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 3465 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
3466 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
3467 | { | |
3468 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3469 | sp = kbd_buffer; | |
3470 | ||
c5fdd383 | 3471 | if (event_to_kboard (sp) == kb) |
5798cf15 | 3472 | { |
3b8f9651 | 3473 | sp->kind = NO_EVENT; |
5798cf15 | 3474 | sp->frame_or_window = Qnil; |
da8f7368 | 3475 | sp->arg = Qnil; |
5798cf15 KH |
3476 | } |
3477 | } | |
3478 | return; | |
3479 | } | |
3e51c7b7 | 3480 | |
6b61353c KH |
3481 | if (hold_quit) |
3482 | { | |
72af86bd | 3483 | memcpy (hold_quit, event, sizeof (*event)); |
6b61353c KH |
3484 | return; |
3485 | } | |
3486 | ||
284f4730 | 3487 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 3488 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 3489 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 3490 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 3491 | { |
9b8eb840 | 3492 | Lisp_Object focus; |
4bb994d1 | 3493 | |
9b8eb840 | 3494 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 3495 | if (NILP (focus)) |
beecf6a1 | 3496 | focus = event->frame_or_window; |
4c52b668 KH |
3497 | internal_last_event_frame = focus; |
3498 | Vlast_event_frame = focus; | |
4bb994d1 | 3499 | } |
3e51c7b7 | 3500 | |
ffd56f97 | 3501 | last_event_timestamp = event->timestamp; |
114a8b8c | 3502 | handle_interrupt (); |
284f4730 JB |
3503 | return; |
3504 | } | |
3505 | ||
3506 | if (c && c == stop_character) | |
3507 | { | |
3508 | sys_suspend (); | |
3509 | return; | |
3510 | } | |
284f4730 | 3511 | } |
3b8f9651 | 3512 | /* Don't insert two BUFFER_SWITCH_EVENT's in a row. |
3fe8e9a2 | 3513 | Just ignore the second one. */ |
3b8f9651 | 3514 | else if (event->kind == BUFFER_SWITCH_EVENT |
3fe8e9a2 | 3515 | && kbd_fetch_ptr != kbd_store_ptr |
6b61353c KH |
3516 | && ((kbd_store_ptr == kbd_buffer |
3517 | ? kbd_buffer + KBD_BUFFER_SIZE - 1 | |
3518 | : kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT) | |
3fe8e9a2 | 3519 | return; |
284f4730 | 3520 | |
beecf6a1 KH |
3521 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
3522 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
3523 | |
3524 | /* Don't let the very last slot in the buffer become full, | |
3525 | since that would make the two pointers equal, | |
3526 | and that is indistinguishable from an empty buffer. | |
3527 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 3528 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 3529 | { |
e3f6e7c7 KS |
3530 | *kbd_store_ptr = *event; |
3531 | ++kbd_store_ptr; | |
86520d8c | 3532 | #ifdef subprocesses |
cb768704 J |
3533 | if (kbd_buffer_nr_stored () > KBD_BUFFER_SIZE/2 && ! kbd_on_hold_p ()) |
3534 | { | |
3535 | /* Don't read keyboard input until we have processed kbd_buffer. | |
3536 | This happens when pasting text longer than KBD_BUFFER_SIZE/2. */ | |
3537 | hold_keyboard_input (); | |
3538 | #ifdef SIGIO | |
3539 | if (!noninteractive) | |
3540 | signal (SIGIO, SIG_IGN); | |
3541 | #endif | |
3542 | stop_polling (); | |
3543 | } | |
86520d8c | 3544 | #endif /* subprocesses */ |
e3f6e7c7 | 3545 | } |
2a84c6da | 3546 | |
85e7f477 RS |
3547 | /* If we're inside while-no-input, and this event qualifies |
3548 | as input, set quit-flag to cause an interrupt. */ | |
2a84c6da KS |
3549 | if (!NILP (Vthrow_on_input) |
3550 | && event->kind != FOCUS_IN_EVENT | |
3551 | && event->kind != HELP_EVENT | |
b809d9e7 | 3552 | && event->kind != DEICONIFY_EVENT) |
85e7f477 RS |
3553 | { |
3554 | Vquit_flag = Vthrow_on_input; | |
3555 | /* If we're inside a function that wants immediate quits, | |
3556 | do it now. */ | |
3557 | if (immediate_quit && NILP (Vinhibit_quit)) | |
3558 | { | |
3559 | immediate_quit = 0; | |
3560 | sigfree (); | |
3561 | QUIT; | |
3562 | } | |
3563 | } | |
e3f6e7c7 | 3564 | } |
c60ee5e7 | 3565 | |
da8f7368 | 3566 | |
e3f6e7c7 | 3567 | /* Put an input event back in the head of the event queue. */ |
284f4730 | 3568 | |
e3f6e7c7 | 3569 | void |
d3da34e0 | 3570 | kbd_buffer_unget_event (register struct input_event *event) |
e3f6e7c7 KS |
3571 | { |
3572 | if (kbd_fetch_ptr == kbd_buffer) | |
3573 | kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE; | |
3574 | ||
3575 | /* Don't let the very last slot in the buffer become full, */ | |
3576 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) | |
3577 | { | |
3578 | --kbd_fetch_ptr; | |
3579 | *kbd_fetch_ptr = *event; | |
284f4730 JB |
3580 | } |
3581 | } | |
8dfd92c9 GM |
3582 | |
3583 | ||
41118bd3 EZ |
3584 | /* Generate a HELP_EVENT input_event and store it in the keyboard |
3585 | buffer. | |
8dfd92c9 GM |
3586 | |
3587 | HELP is the help form. | |
3588 | ||
40b1a3a9 | 3589 | FRAME and WINDOW are the frame and window where the help is |
41118bd3 EZ |
3590 | generated. OBJECT is the Lisp object where the help was found (a |
3591 | buffer, a string, an overlay, or nil if neither from a string nor | |
3592 | from a buffer). POS is the position within OBJECT where the help | |
3593 | was found. */ | |
8dfd92c9 | 3594 | |
6b61353c | 3595 | void |
d3da34e0 | 3596 | gen_help_event (Lisp_Object help, Lisp_Object frame, Lisp_Object window, |
41118bd3 | 3597 | Lisp_Object object, EMACS_INT pos) |
8dfd92c9 | 3598 | { |
6b61353c KH |
3599 | struct input_event event; |
3600 | ||
3601 | EVENT_INIT (event); | |
3602 | ||
3603 | event.kind = HELP_EVENT; | |
3604 | event.frame_or_window = frame; | |
3605 | event.arg = object; | |
3606 | event.x = WINDOWP (window) ? window : frame; | |
3607 | event.y = help; | |
3608 | event.code = pos; | |
3609 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3610 | } |
3611 | ||
3612 | ||
3613 | /* Store HELP_EVENTs for HELP on FRAME in the input queue. */ | |
3614 | ||
3615 | void | |
d3da34e0 | 3616 | kbd_buffer_store_help_event (Lisp_Object frame, Lisp_Object help) |
8dfd92c9 GM |
3617 | { |
3618 | struct input_event event; | |
3619 | ||
3620 | event.kind = HELP_EVENT; | |
3621 | event.frame_or_window = frame; | |
3622 | event.arg = Qnil; | |
2e1a49ad SM |
3623 | event.x = Qnil; |
3624 | event.y = help; | |
8dfd92c9 GM |
3625 | event.code = 0; |
3626 | kbd_buffer_store_event (&event); | |
8dfd92c9 GM |
3627 | } |
3628 | ||
a612e298 | 3629 | \f |
07de30b9 | 3630 | /* Discard any mouse events in the event buffer by setting them to |
3b8f9651 | 3631 | NO_EVENT. */ |
07de30b9 | 3632 | void |
d3da34e0 | 3633 | discard_mouse_events (void) |
07de30b9 GV |
3634 | { |
3635 | struct input_event *sp; | |
3636 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
3637 | { | |
3638 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3639 | sp = kbd_buffer; | |
3640 | ||
3b8f9651 | 3641 | if (sp->kind == MOUSE_CLICK_EVENT |
8006e4bb | 3642 | || sp->kind == WHEEL_EVENT |
13899bc1 | 3643 | || sp->kind == HORIZ_WHEEL_EVENT |
e416374c NR |
3644 | #ifdef HAVE_GPM |
3645 | || sp->kind == GPM_CLICK_EVENT | |
07de30b9 | 3646 | #endif |
3b8f9651 | 3647 | || sp->kind == SCROLL_BAR_CLICK_EVENT) |
07de30b9 | 3648 | { |
3b8f9651 | 3649 | sp->kind = NO_EVENT; |
07de30b9 GV |
3650 | } |
3651 | } | |
3652 | } | |
eeabfe76 | 3653 | |
0bbfdc25 GM |
3654 | |
3655 | /* Return non-zero if there are any real events waiting in the event | |
3b8f9651 | 3656 | buffer, not counting `NO_EVENT's. |
0bbfdc25 | 3657 | |
3b8f9651 | 3658 | If DISCARD is non-zero, discard NO_EVENT events at the front of |
0bbfdc25 GM |
3659 | the input queue, possibly leaving the input queue empty if there |
3660 | are no real input events. */ | |
3661 | ||
eeabfe76 | 3662 | int |
d3da34e0 | 3663 | kbd_buffer_events_waiting (int discard) |
eeabfe76 EZ |
3664 | { |
3665 | struct input_event *sp; | |
c60ee5e7 | 3666 | |
0bbfdc25 | 3667 | for (sp = kbd_fetch_ptr; |
3b8f9651 | 3668 | sp != kbd_store_ptr && sp->kind == NO_EVENT; |
0bbfdc25 | 3669 | ++sp) |
eeabfe76 EZ |
3670 | { |
3671 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
3672 | sp = kbd_buffer; | |
eeabfe76 | 3673 | } |
0bbfdc25 | 3674 | |
eeabfe76 EZ |
3675 | if (discard) |
3676 | kbd_fetch_ptr = sp; | |
0bbfdc25 | 3677 | |
3b8f9651 | 3678 | return sp != kbd_store_ptr && sp->kind != NO_EVENT; |
eeabfe76 | 3679 | } |
0bbfdc25 | 3680 | |
07de30b9 | 3681 | \f |
0bbfdc25 GM |
3682 | /* Clear input event EVENT. */ |
3683 | ||
3684 | static INLINE void | |
d3da34e0 | 3685 | clear_event (struct input_event *event) |
0bbfdc25 | 3686 | { |
3b8f9651 | 3687 | event->kind = NO_EVENT; |
0bbfdc25 GM |
3688 | } |
3689 | ||
3690 | ||
a612e298 RS |
3691 | /* Read one event from the event buffer, waiting if necessary. |
3692 | The value is a Lisp object representing the event. | |
3693 | The value is nil for an event that should be ignored, | |
3694 | or that was handled here. | |
3695 | We always read and discard one event. */ | |
284f4730 JB |
3696 | |
3697 | static Lisp_Object | |
cb768704 J |
3698 | kbd_buffer_get_event (KBOARD **kbp, |
3699 | int *used_mouse_menu, | |
3700 | struct timeval *end_time) | |
284f4730 JB |
3701 | { |
3702 | register int c; | |
3703 | Lisp_Object obj; | |
361358ea | 3704 | |
86520d8c | 3705 | #ifdef subprocesses |
cb768704 J |
3706 | if (kbd_on_hold_p () && kbd_buffer_nr_stored () < KBD_BUFFER_SIZE/4) |
3707 | { | |
3708 | /* Start reading input again, we have processed enough so we can | |
3709 | accept new events again. */ | |
3710 | unhold_keyboard_input (); | |
3711 | #ifdef SIGIO | |
3712 | if (!noninteractive) | |
3713 | signal (SIGIO, input_available_signal); | |
3714 | #endif /* SIGIO */ | |
3715 | start_polling (); | |
3716 | } | |
86520d8c | 3717 | #endif /* subprocesses */ |
284f4730 | 3718 | |
a3b1a468 DN |
3719 | if (noninteractive |
3720 | /* In case we are running as a daemon, only do this before | |
3721 | detaching from the terminal. */ | |
3722 | || (IS_DAEMON && daemon_pipe[1] >= 0)) | |
284f4730 JB |
3723 | { |
3724 | c = getchar (); | |
18cd2eeb | 3725 | XSETINT (obj, c); |
f5b56972 | 3726 | *kbp = current_kboard; |
284f4730 JB |
3727 | return obj; |
3728 | } | |
3729 | ||
3730 | /* Wait until there is input available. */ | |
3731 | for (;;) | |
3732 | { | |
15d81484 MR |
3733 | /* Break loop if there's an unread command event. Needed in |
3734 | moused window autoselection which uses a timer to insert such | |
3735 | events. */ | |
3736 | if (CONSP (Vunread_command_events)) | |
3737 | break; | |
033b73e2 | 3738 | |
beecf6a1 KH |
3739 | if (kbd_fetch_ptr != kbd_store_ptr) |
3740 | break; | |
ae372f41 | 3741 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 3742 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3743 | break; |
beecf6a1 | 3744 | #endif |
284f4730 JB |
3745 | |
3746 | /* If the quit flag is set, then read_char will return | |
3747 | quit_char, so that counts as "available input." */ | |
3748 | if (!NILP (Vquit_flag)) | |
3749 | quit_throw_to_read_char (); | |
3750 | ||
3751 | /* One way or another, wait until input is available; then, if | |
3752 | interrupt handlers have not read it, read it now. */ | |
3753 | ||
284f4730 JB |
3754 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
3755 | #ifdef SIGIO | |
3756 | gobble_input (0); | |
3757 | #endif /* SIGIO */ | |
beecf6a1 KH |
3758 | if (kbd_fetch_ptr != kbd_store_ptr) |
3759 | break; | |
ae372f41 | 3760 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
f3253854 | 3761 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3762 | break; |
3763 | #endif | |
179f689c CY |
3764 | if (end_time) |
3765 | { | |
3766 | EMACS_TIME duration; | |
3767 | EMACS_GET_TIME (duration); | |
6b657e42 EZ |
3768 | if (EMACS_TIME_GE (duration, *end_time)) |
3769 | return Qnil; /* finished waiting */ | |
179f689c | 3770 | else |
6b657e42 EZ |
3771 | { |
3772 | EMACS_SUB_TIME (duration, *end_time, duration); | |
3773 | wait_reading_process_output (EMACS_SECS (duration), | |
3774 | EMACS_USECS (duration), | |
3775 | -1, 1, Qnil, NULL, 0); | |
3776 | } | |
179f689c CY |
3777 | } |
3778 | else | |
d64b707c | 3779 | wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0); |
284f4730 | 3780 | |
179f689c CY |
3781 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3782 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3783 | read_avail_input (1); | |
284f4730 JB |
3784 | } |
3785 | ||
303b5b3f RS |
3786 | if (CONSP (Vunread_command_events)) |
3787 | { | |
3788 | Lisp_Object first; | |
7539e11f KR |
3789 | first = XCAR (Vunread_command_events); |
3790 | Vunread_command_events = XCDR (Vunread_command_events); | |
303b5b3f RS |
3791 | *kbp = current_kboard; |
3792 | return first; | |
3793 | } | |
3794 | ||
284f4730 JB |
3795 | /* At this point, we know that there is a readable event available |
3796 | somewhere. If the event queue is empty, then there must be a | |
3797 | mouse movement enabled and available. */ | |
beecf6a1 | 3798 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3799 | { |
cd21b839 | 3800 | struct input_event *event; |
3e51c7b7 | 3801 | |
beecf6a1 KH |
3802 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3803 | ? kbd_fetch_ptr | |
3804 | : kbd_buffer); | |
3e51c7b7 | 3805 | |
cd21b839 | 3806 | last_event_timestamp = event->timestamp; |
cd21b839 | 3807 | |
c5fdd383 KH |
3808 | *kbp = event_to_kboard (event); |
3809 | if (*kbp == 0) | |
3810 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
beecf6a1 | 3811 | |
4bb994d1 JB |
3812 | obj = Qnil; |
3813 | ||
48e416d4 | 3814 | /* These two kinds of events get special handling |
a612e298 RS |
3815 | and don't actually appear to the command loop. |
3816 | We return nil for them. */ | |
e3f6e7c7 KS |
3817 | if (event->kind == SELECTION_REQUEST_EVENT |
3818 | || event->kind == SELECTION_CLEAR_EVENT) | |
48e416d4 | 3819 | { |
598a9fa7 | 3820 | #ifdef HAVE_X11 |
1e8bd3da RS |
3821 | struct input_event copy; |
3822 | ||
4581e928 RS |
3823 | /* Remove it from the buffer before processing it, |
3824 | since otherwise swallow_events will see it | |
3825 | and process it again. */ | |
1e8bd3da | 3826 | copy = *event; |
beecf6a1 | 3827 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3828 | input_pending = readable_events (0); |
e3f6e7c7 | 3829 | x_handle_selection_event (©); |
598a9fa7 JB |
3830 | #else |
3831 | /* We're getting selection request events, but we don't have | |
3832 | a window system. */ | |
3833 | abort (); | |
3834 | #endif | |
48e416d4 RS |
3835 | } |
3836 | ||
8612b71a AR |
3837 | #if defined (HAVE_NS) |
3838 | else if (event->kind == NS_TEXT_EVENT) | |
3839 | { | |
3840 | if (event->code == KEY_NS_PUT_WORKING_TEXT) | |
3841 | obj = Fcons (intern ("ns-put-working-text"), Qnil); | |
3842 | else | |
3843 | obj = Fcons (intern ("ns-unput-working-text"), Qnil); | |
3844 | kbd_fetch_ptr = event + 1; | |
5acf9d90 AR |
3845 | if (used_mouse_menu) |
3846 | *used_mouse_menu = 1; | |
8612b71a AR |
3847 | } |
3848 | #endif | |
3849 | ||
9e2a2647 | 3850 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 3851 | || defined (HAVE_NS) |
3b8f9651 | 3852 | else if (event->kind == DELETE_WINDOW_EVENT) |
990acea3 | 3853 | { |
bbdc2092 RS |
3854 | /* Make an event (delete-frame (FRAME)). */ |
3855 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3856 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3857 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3858 | } |
1a578e9b | 3859 | #endif |
9e2a2647 | 3860 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) \ |
edfda783 | 3861 | || defined (HAVE_NS) |
3b8f9651 | 3862 | else if (event->kind == ICONIFY_EVENT) |
af17bd2b KH |
3863 | { |
3864 | /* Make an event (iconify-frame (FRAME)). */ | |
3865 | obj = Fcons (event->frame_or_window, Qnil); | |
3866 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3867 | kbd_fetch_ptr = event + 1; |
af17bd2b | 3868 | } |
3b8f9651 | 3869 | else if (event->kind == DEICONIFY_EVENT) |
af17bd2b KH |
3870 | { |
3871 | /* Make an event (make-frame-visible (FRAME)). */ | |
3872 | obj = Fcons (event->frame_or_window, Qnil); | |
3873 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3874 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3875 | } |
3876 | #endif | |
3b8f9651 | 3877 | else if (event->kind == BUFFER_SWITCH_EVENT) |
a8015ab5 KH |
3878 | { |
3879 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3880 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3881 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3882 | } |
9e2a2647 | 3883 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 3884 | || defined(HAVE_NS) || defined (USE_GTK) |
3b8f9651 | 3885 | else if (event->kind == MENU_BAR_ACTIVATE_EVENT) |
099787c1 RS |
3886 | { |
3887 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3888 | input_pending = readable_events (0); |
e649d076 RS |
3889 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3890 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3891 | } |
1161d367 | 3892 | #endif |
9e2a2647 | 3893 | #if defined (WINDOWSNT) |
3b8f9651 | 3894 | else if (event->kind == LANGUAGE_CHANGE_EVENT) |
1161d367 GV |
3895 | { |
3896 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
d352abdf | 3897 | obj = Fcons (event->frame_or_window, Qnil); |
1161d367 GV |
3898 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); |
3899 | kbd_fetch_ptr = event + 1; | |
3900 | } | |
099787c1 | 3901 | #endif |
3b8f9651 | 3902 | else if (event->kind == SAVE_SESSION_EVENT) |
4ebc27a5 | 3903 | { |
0b9fc69a | 3904 | obj = Fcons (Qsave_session, Fcons (event->arg, Qnil)); |
4ebc27a5 JD |
3905 | kbd_fetch_ptr = event + 1; |
3906 | } | |
a612e298 | 3907 | /* Just discard these, by returning nil. |
c5fdd383 | 3908 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3909 | when we need to randomly delete events from the queue. |
3910 | (They shouldn't otherwise be found in the buffer, | |
3911 | but on some machines it appears they do show up | |
c5fdd383 | 3912 | even without MULTI_KBOARD.) */ |
3b8f9651 | 3913 | /* On Windows NT/9X, NO_EVENT is used to delete extraneous |
07de30b9 | 3914 | mouse events during a popup-menu call. */ |
3b8f9651 | 3915 | else if (event->kind == NO_EVENT) |
beecf6a1 | 3916 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3917 | else if (event->kind == HELP_EVENT) |
3918 | { | |
2190735a | 3919 | Lisp_Object object, position, help, frame, window; |
e4457b09 | 3920 | |
8dfd92c9 GM |
3921 | frame = event->frame_or_window; |
3922 | object = event->arg; | |
2e1a49ad SM |
3923 | position = make_number (event->code); |
3924 | window = event->x; | |
3925 | help = event->y; | |
0bbfdc25 | 3926 | clear_event (event); |
e4457b09 GM |
3927 | |
3928 | kbd_fetch_ptr = event + 1; | |
2190735a GM |
3929 | if (!WINDOWP (window)) |
3930 | window = Qnil; | |
3931 | obj = Fcons (Qhelp_echo, | |
3932 | list5 (frame, help, window, object, position)); | |
7ee32cda | 3933 | } |
c51c7093 GM |
3934 | else if (event->kind == FOCUS_IN_EVENT) |
3935 | { | |
3936 | /* Notification of a FocusIn event. The frame receiving the | |
3937 | focus is in event->frame_or_window. Generate a | |
3938 | switch-frame event if necessary. */ | |
3939 | Lisp_Object frame, focus; | |
3940 | ||
3941 | frame = event->frame_or_window; | |
3942 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); | |
3943 | if (FRAMEP (focus)) | |
3944 | frame = focus; | |
3945 | ||
3946 | if (!EQ (frame, internal_last_event_frame) | |
3947 | && !EQ (frame, selected_frame)) | |
3948 | obj = make_lispy_switch_frame (frame); | |
3949 | internal_last_event_frame = frame; | |
3950 | kbd_fetch_ptr = event + 1; | |
3951 | } | |
033b73e2 MA |
3952 | #ifdef HAVE_DBUS |
3953 | else if (event->kind == DBUS_EVENT) | |
3954 | { | |
3955 | obj = make_lispy_event (event); | |
3956 | kbd_fetch_ptr = event + 1; | |
3957 | } | |
3958 | #endif | |
637fa988 JD |
3959 | else if (event->kind == CONFIG_CHANGED_EVENT) |
3960 | { | |
3961 | obj = make_lispy_event (event); | |
3962 | kbd_fetch_ptr = event + 1; | |
3963 | } | |
1e12dd87 RS |
3964 | else |
3965 | { | |
c51c7093 GM |
3966 | /* If this event is on a different frame, return a switch-frame this |
3967 | time, and leave the event in the queue for next time. */ | |
9b8eb840 | 3968 | Lisp_Object frame; |
1e12dd87 | 3969 | Lisp_Object focus; |
7b4aedb9 | 3970 | |
9b8eb840 | 3971 | frame = event->frame_or_window; |
2470a66f | 3972 | if (CONSP (frame)) |
7539e11f | 3973 | frame = XCAR (frame); |
2470a66f | 3974 | else if (WINDOWP (frame)) |
1e12dd87 | 3975 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3976 | |
1e12dd87 RS |
3977 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3978 | if (! NILP (focus)) | |
3979 | frame = focus; | |
07d2b8de | 3980 | |
4c52b668 | 3981 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3982 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3983 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3984 | internal_last_event_frame = frame; |
4bb994d1 | 3985 | |
1e12dd87 RS |
3986 | /* If we didn't decide to make a switch-frame event, go ahead |
3987 | and build a real event from the queue entry. */ | |
cd21b839 | 3988 | |
1e12dd87 RS |
3989 | if (NILP (obj)) |
3990 | { | |
3991 | obj = make_lispy_event (event); | |
c60ee5e7 | 3992 | |
9e2a2647 | 3993 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 3994 | || defined(HAVE_NS) || defined (USE_GTK) |
83d68044 KH |
3995 | /* If this was a menu selection, then set the flag to inhibit |
3996 | writing to last_nonmenu_event. Don't do this if the event | |
3997 | we're returning is (menu-bar), though; that indicates the | |
3998 | beginning of the menu sequence, and we might as well leave | |
3999 | that as the `event with parameters' for this selection. */ | |
da8f7368 GM |
4000 | if (used_mouse_menu |
4001 | && !EQ (event->frame_or_window, event->arg) | |
4002 | && (event->kind == MENU_BAR_EVENT | |
4003 | || event->kind == TOOL_BAR_EVENT)) | |
83d68044 KH |
4004 | *used_mouse_menu = 1; |
4005 | #endif | |
83d92ee0 DR |
4006 | #ifdef HAVE_NS |
4007 | /* certain system events are non-key events */ | |
5acf9d90 AR |
4008 | if (used_mouse_menu |
4009 | && event->kind == NS_NONKEY_EVENT) | |
83d92ee0 DR |
4010 | *used_mouse_menu = 1; |
4011 | #endif | |
1e12dd87 RS |
4012 | |
4013 | /* Wipe out this event, to catch bugs. */ | |
0bbfdc25 | 4014 | clear_event (event); |
beecf6a1 | 4015 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 4016 | } |
4bb994d1 | 4017 | } |
284f4730 | 4018 | } |
ae372f41 | 4019 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a612e298 | 4020 | /* Try generating a mouse motion event. */ |
f3253854 | 4021 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 4022 | { |
f3253854 | 4023 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 4024 | Lisp_Object bar_window; |
3c370943 | 4025 | enum scroll_bar_part part; |
e5d77022 JB |
4026 | Lisp_Object x, y; |
4027 | unsigned long time; | |
284f4730 | 4028 | |
c5fdd383 | 4029 | *kbp = current_kboard; |
6ed8eeff | 4030 | /* Note that this uses F to determine which terminal to look at. |
e177ac3a RS |
4031 | If there is no valid info, it does not store anything |
4032 | so x remains nil. */ | |
4033 | x = Qnil; | |
3b7fbceb | 4034 | |
c3b4957f | 4035 | /* XXX Can f or mouse_position_hook be NULL here? */ |
6ed8eeff KL |
4036 | if (f && FRAME_TERMINAL (f)->mouse_position_hook) |
4037 | (*FRAME_TERMINAL (f)->mouse_position_hook) (&f, 0, &bar_window, | |
4038 | &part, &x, &y, &time); | |
4bb994d1 JB |
4039 | |
4040 | obj = Qnil; | |
284f4730 | 4041 | |
4bb994d1 JB |
4042 | /* Decide if we should generate a switch-frame event. Don't |
4043 | generate switch-frame events for motion outside of all Emacs | |
4044 | frames. */ | |
e177ac3a | 4045 | if (!NILP (x) && f) |
cd21b839 | 4046 | { |
9b8eb840 | 4047 | Lisp_Object frame; |
4bb994d1 | 4048 | |
9b8eb840 | 4049 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 4050 | if (NILP (frame)) |
18cd2eeb | 4051 | XSETFRAME (frame, f); |
4bb994d1 | 4052 | |
4c52b668 | 4053 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 4054 | && !EQ (frame, selected_frame)) |
764cb3f9 | 4055 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 4056 | internal_last_event_frame = frame; |
cd21b839 | 4057 | } |
4bb994d1 | 4058 | |
df0f2ba1 | 4059 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 4060 | return a mouse-motion event. */ |
e177ac3a | 4061 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 4062 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 4063 | } |
ae372f41 | 4064 | #endif /* HAVE_MOUSE || HAVE GPM */ |
284f4730 JB |
4065 | else |
4066 | /* We were promised by the above while loop that there was | |
4067 | something for us to read! */ | |
4068 | abort (); | |
4069 | ||
d9d4c147 | 4070 | input_pending = readable_events (0); |
284f4730 | 4071 | |
4c52b668 | 4072 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 4073 | |
284f4730 JB |
4074 | return (obj); |
4075 | } | |
a612e298 RS |
4076 | \f |
4077 | /* Process any events that are not user-visible, | |
4078 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
4079 | |
4080 | void | |
d3da34e0 | 4081 | swallow_events (int do_display) |
3a3b9632 | 4082 | { |
87dd9b9b RS |
4083 | int old_timers_run; |
4084 | ||
beecf6a1 | 4085 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
4086 | { |
4087 | struct input_event *event; | |
4088 | ||
beecf6a1 KH |
4089 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
4090 | ? kbd_fetch_ptr | |
4091 | : kbd_buffer); | |
3a3b9632 RS |
4092 | |
4093 | last_event_timestamp = event->timestamp; | |
4094 | ||
4095 | /* These two kinds of events get special handling | |
4096 | and don't actually appear to the command loop. */ | |
e3f6e7c7 KS |
4097 | if (event->kind == SELECTION_REQUEST_EVENT |
4098 | || event->kind == SELECTION_CLEAR_EVENT) | |
3a3b9632 RS |
4099 | { |
4100 | #ifdef HAVE_X11 | |
4581e928 | 4101 | struct input_event copy; |
e0301c07 RS |
4102 | |
4103 | /* Remove it from the buffer before processing it, | |
4104 | since otherwise swallow_events called recursively could see it | |
4105 | and process it again. */ | |
4581e928 | 4106 | copy = *event; |
beecf6a1 | 4107 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 4108 | input_pending = readable_events (0); |
e3f6e7c7 | 4109 | x_handle_selection_event (©); |
3a3b9632 RS |
4110 | #else |
4111 | /* We're getting selection request events, but we don't have | |
4112 | a window system. */ | |
4113 | abort (); | |
4114 | #endif | |
4115 | } | |
4116 | else | |
4117 | break; | |
4118 | } | |
4119 | ||
87dd9b9b | 4120 | old_timers_run = timers_run; |
a2d5fca0 | 4121 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
87dd9b9b RS |
4122 | |
4123 | if (timers_run != old_timers_run && do_display) | |
3007ebfb | 4124 | redisplay_preserve_echo_area (7); |
3a3b9632 | 4125 | } |
a612e298 | 4126 | \f |
d9d4c147 KH |
4127 | /* Record the start of when Emacs is idle, |
4128 | for the sake of running idle-time timers. */ | |
4129 | ||
5c12e63f | 4130 | static void |
d3da34e0 | 4131 | timer_start_idle (void) |
d9d4c147 KH |
4132 | { |
4133 | Lisp_Object timers; | |
4134 | ||
4135 | /* If we are already in the idle state, do nothing. */ | |
4136 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4137 | return; | |
4138 | ||
4139 | EMACS_GET_TIME (timer_idleness_start_time); | |
4140 | ||
3021d3a9 RS |
4141 | timer_last_idleness_start_time = timer_idleness_start_time; |
4142 | ||
d9d4c147 | 4143 | /* Mark all idle-time timers as once again candidates for running. */ |
7539e11f | 4144 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCDR (timers)) |
d9d4c147 KH |
4145 | { |
4146 | Lisp_Object timer; | |
4147 | ||
7539e11f | 4148 | timer = XCAR (timers); |
d9d4c147 KH |
4149 | |
4150 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
4151 | continue; | |
4152 | XVECTOR (timer)->contents[0] = Qnil; | |
4153 | } | |
4154 | } | |
4155 | ||
4156 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
4157 | ||
5c12e63f | 4158 | static void |
d3da34e0 | 4159 | timer_stop_idle (void) |
d9d4c147 KH |
4160 | { |
4161 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
4162 | } | |
4163 | ||
5c12e63f KS |
4164 | /* Resume idle timer from last idle start time. */ |
4165 | ||
4166 | static void | |
d3da34e0 | 4167 | timer_resume_idle (void) |
5c12e63f KS |
4168 | { |
4169 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4170 | return; | |
4171 | ||
4172 | timer_idleness_start_time = timer_last_idleness_start_time; | |
4173 | } | |
4174 | ||
e044e87c RS |
4175 | /* This is only for debugging. */ |
4176 | struct input_event last_timer_event; | |
4177 | ||
58555d81 SM |
4178 | /* List of elisp functions to call, delayed because they were generated in |
4179 | a context where Elisp could not be safely run (e.g. redisplay, signal, | |
864660a2 | 4180 | ...). Each element has the form (FUN . ARGS). */ |
58555d81 SM |
4181 | Lisp_Object pending_funcalls; |
4182 | ||
c04cbc3b RS |
4183 | /* Check whether a timer has fired. To prevent larger problems we simply |
4184 | disregard elements that are not proper timers. Do not make a circular | |
4185 | timer list for the time being. | |
4186 | ||
e90292a9 JD |
4187 | Returns the time to wait until the next timer fires. If a |
4188 | timer is triggering now, return zero. | |
4189 | If no timer is active, return -1. | |
c04cbc3b | 4190 | |
4ec4ed6a | 4191 | If a timer is ripe, we run it, with quitting turned off. |
e90292a9 JD |
4192 | In that case we return 0 to indicate that a new timer_check_2 call |
4193 | should be done. */ | |
4ec4ed6a | 4194 | |
e90292a9 | 4195 | static EMACS_TIME |
d3da34e0 | 4196 | timer_check_2 (void) |
c04cbc3b RS |
4197 | { |
4198 | EMACS_TIME nexttime; | |
9291c072 RS |
4199 | EMACS_TIME now, idleness_now; |
4200 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 4201 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 4202 | |
c04cbc3b RS |
4203 | EMACS_SET_SECS (nexttime, -1); |
4204 | EMACS_SET_USECS (nexttime, -1); | |
4205 | ||
9291c072 | 4206 | /* Always consider the ordinary timers. */ |
7ea13e12 | 4207 | timers = Vtimer_list; |
9291c072 RS |
4208 | /* Consider the idle timers only if Emacs is idle. */ |
4209 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4210 | idle_timers = Vtimer_idle_list; | |
4211 | else | |
4212 | idle_timers = Qnil; | |
4213 | chosen_timer = Qnil; | |
4214 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 4215 | |
58555d81 SM |
4216 | /* First run the code that was delayed. */ |
4217 | while (CONSP (pending_funcalls)) | |
4218 | { | |
4219 | Lisp_Object funcall = XCAR (pending_funcalls); | |
4220 | pending_funcalls = XCDR (pending_funcalls); | |
4221 | safe_call2 (Qapply, XCAR (funcall), XCDR (funcall)); | |
4222 | } | |
4223 | ||
9291c072 | 4224 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 4225 | { |
9291c072 RS |
4226 | EMACS_GET_TIME (now); |
4227 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
4228 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
4229 | } | |
c04cbc3b | 4230 | |
9291c072 RS |
4231 | while (CONSP (timers) || CONSP (idle_timers)) |
4232 | { | |
9291c072 | 4233 | Lisp_Object *vector; |
8c907a56 | 4234 | Lisp_Object timer = Qnil, idle_timer = Qnil; |
9291c072 RS |
4235 | EMACS_TIME timer_time, idle_timer_time; |
4236 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
4237 | ||
4238 | /* Skip past invalid timers and timers already handled. */ | |
4239 | if (!NILP (timers)) | |
c04cbc3b | 4240 | { |
7539e11f | 4241 | timer = XCAR (timers); |
9291c072 RS |
4242 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
4243 | { | |
7539e11f | 4244 | timers = XCDR (timers); |
9291c072 RS |
4245 | continue; |
4246 | } | |
4247 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 4248 | |
9291c072 RS |
4249 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
4250 | || !INTEGERP (vector[3]) | |
4251 | || ! NILP (vector[0])) | |
4252 | { | |
7539e11f | 4253 | timers = XCDR (timers); |
9291c072 RS |
4254 | continue; |
4255 | } | |
4256 | } | |
4257 | if (!NILP (idle_timers)) | |
4258 | { | |
7539e11f | 4259 | timer = XCAR (idle_timers); |
d9d4c147 | 4260 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 | 4261 | { |
7539e11f | 4262 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4263 | continue; |
4264 | } | |
d9d4c147 KH |
4265 | vector = XVECTOR (timer)->contents; |
4266 | ||
4267 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
4268 | || !INTEGERP (vector[3]) |
4269 | || ! NILP (vector[0])) | |
4270 | { | |
7539e11f | 4271 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4272 | continue; |
4273 | } | |
4274 | } | |
d9d4c147 | 4275 | |
9291c072 RS |
4276 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
4277 | based on the next ordinary timer. | |
4278 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
4279 | this timer becomes ripe (negative if it's already ripe). */ | |
4280 | if (!NILP (timers)) | |
4281 | { | |
7539e11f | 4282 | timer = XCAR (timers); |
9291c072 | 4283 | vector = XVECTOR (timer)->contents; |
d9d4c147 KH |
4284 | EMACS_SET_SECS (timer_time, |
4285 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4286 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
4287 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
4288 | } | |
ba8dfba8 | 4289 | |
9291c072 RS |
4290 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
4291 | based on the next idle timer. */ | |
4292 | if (!NILP (idle_timers)) | |
4293 | { | |
7539e11f | 4294 | idle_timer = XCAR (idle_timers); |
9291c072 RS |
4295 | vector = XVECTOR (idle_timer)->contents; |
4296 | EMACS_SET_SECS (idle_timer_time, | |
4297 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
4298 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
4299 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
4300 | } | |
ba8dfba8 | 4301 | |
9291c072 RS |
4302 | /* Decide which timer is the next timer, |
4303 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
4304 | Also step down the list where we found that timer. */ | |
d9d4c147 | 4305 | |
9291c072 RS |
4306 | if (! NILP (timers) && ! NILP (idle_timers)) |
4307 | { | |
4308 | EMACS_TIME temp; | |
4309 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
4310 | if (EMACS_TIME_NEG_P (temp)) | |
4311 | { | |
4312 | chosen_timer = timer; | |
7539e11f | 4313 | timers = XCDR (timers); |
9291c072 | 4314 | difference = timer_difference; |
c04cbc3b | 4315 | } |
d9d4c147 | 4316 | else |
d9d4c147 | 4317 | { |
9291c072 | 4318 | chosen_timer = idle_timer; |
7539e11f | 4319 | idle_timers = XCDR (idle_timers); |
9291c072 | 4320 | difference = idle_timer_difference; |
d9d4c147 | 4321 | } |
7ea13e12 | 4322 | } |
9291c072 RS |
4323 | else if (! NILP (timers)) |
4324 | { | |
4325 | chosen_timer = timer; | |
7539e11f | 4326 | timers = XCDR (timers); |
9291c072 RS |
4327 | difference = timer_difference; |
4328 | } | |
4329 | else | |
4330 | { | |
4331 | chosen_timer = idle_timer; | |
7539e11f | 4332 | idle_timers = XCDR (idle_timers); |
9291c072 RS |
4333 | difference = idle_timer_difference; |
4334 | } | |
4335 | vector = XVECTOR (chosen_timer)->contents; | |
c60ee5e7 | 4336 | |
bd55b860 | 4337 | /* If timer is ripe, run it if it hasn't been run. */ |
9291c072 RS |
4338 | if (EMACS_TIME_NEG_P (difference) |
4339 | || (EMACS_SECS (difference) == 0 | |
4340 | && EMACS_USECS (difference) == 0)) | |
4341 | { | |
4342 | if (NILP (vector[0])) | |
4343 | { | |
331379bf | 4344 | int count = SPECPDL_INDEX (); |
d0bbfc99 | 4345 | Lisp_Object old_deactivate_mark = Vdeactivate_mark; |
d925fb39 | 4346 | |
9291c072 RS |
4347 | /* Mark the timer as triggered to prevent problems if the lisp |
4348 | code fails to reschedule it right. */ | |
4349 | vector[0] = Qt; | |
4350 | ||
d925fb39 | 4351 | specbind (Qinhibit_quit, Qt); |
c60ee5e7 | 4352 | |
d925fb39 | 4353 | call1 (Qtimer_event_handler, chosen_timer); |
d0bbfc99 | 4354 | Vdeactivate_mark = old_deactivate_mark; |
d925fb39 | 4355 | timers_run++; |
d925fb39 | 4356 | unbind_to (count, Qnil); |
4ec4ed6a | 4357 | |
d925fb39 RS |
4358 | /* Since we have handled the event, |
4359 | we don't need to tell the caller to wake up and do it. */ | |
e90292a9 JD |
4360 | /* But the caller must still wait for the next timer, so |
4361 | return 0 to indicate that. */ | |
9291c072 | 4362 | } |
e90292a9 JD |
4363 | |
4364 | EMACS_SET_SECS (nexttime, 0); | |
4365 | EMACS_SET_USECS (nexttime, 0); | |
9291c072 RS |
4366 | } |
4367 | else | |
4368 | /* When we encounter a timer that is still waiting, | |
4369 | return the amount of time to wait before it is ripe. */ | |
4370 | { | |
4371 | UNGCPRO; | |
9291c072 RS |
4372 | return difference; |
4373 | } | |
c04cbc3b | 4374 | } |
9291c072 | 4375 | |
7ea13e12 RS |
4376 | /* No timers are pending in the future. */ |
4377 | /* Return 0 if we generated an event, and -1 if not. */ | |
4378 | UNGCPRO; | |
c04cbc3b RS |
4379 | return nexttime; |
4380 | } | |
ff458d81 | 4381 | |
e90292a9 JD |
4382 | |
4383 | /* Check whether a timer has fired. To prevent larger problems we simply | |
4384 | disregard elements that are not proper timers. Do not make a circular | |
4385 | timer list for the time being. | |
4386 | ||
4387 | Returns the time to wait until the next timer fires. | |
4388 | If no timer is active, return -1. | |
4389 | ||
4390 | As long as any timer is ripe, we run it. | |
4391 | ||
4392 | DO_IT_NOW is now ignored. It used to mean that we should | |
4393 | run the timer directly instead of queueing a timer-event. | |
4394 | Now we always run timers directly. */ | |
4395 | ||
4396 | EMACS_TIME | |
d3da34e0 | 4397 | timer_check (int do_it_now) |
e90292a9 JD |
4398 | { |
4399 | EMACS_TIME nexttime; | |
4400 | ||
d3da34e0 | 4401 | do |
e90292a9 JD |
4402 | { |
4403 | nexttime = timer_check_2 (); | |
4404 | } | |
4405 | while (EMACS_SECS (nexttime) == 0 && EMACS_USECS (nexttime) == 0); | |
4406 | ||
4407 | return nexttime; | |
4408 | } | |
4409 | ||
ff458d81 | 4410 | DEFUN ("current-idle-time", Fcurrent_idle_time, Scurrent_idle_time, 0, 0, 0, |
3a704bd7 | 4411 | doc: /* Return the current length of Emacs idleness, or nil. |
f761d6b6 JB |
4412 | The value when Emacs is idle is a list of three integers. The first has |
4413 | the most significant 16 bits of the seconds, while the second has the least | |
4414 | significant 16 bits. The third integer gives the microsecond count. | |
ff458d81 | 4415 | |
3a704bd7 RS |
4416 | The value when Emacs is not idle is nil. |
4417 | ||
ff458d81 RS |
4418 | The microsecond count is zero on systems that do not provide |
4419 | resolution finer than a second. */) | |
5842a27b | 4420 | (void) |
ff458d81 | 4421 | { |
ff458d81 RS |
4422 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) |
4423 | { | |
966949b0 | 4424 | EMACS_TIME now, idleness_now; |
ff458d81 | 4425 | |
966949b0 KS |
4426 | EMACS_GET_TIME (now); |
4427 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
ff458d81 | 4428 | |
966949b0 KS |
4429 | return list3 (make_number ((EMACS_SECS (idleness_now) >> 16) & 0xffff), |
4430 | make_number ((EMACS_SECS (idleness_now) >> 0) & 0xffff), | |
4431 | make_number (EMACS_USECS (idleness_now))); | |
ff458d81 RS |
4432 | } |
4433 | ||
4434 | return Qnil; | |
4435 | } | |
c04cbc3b | 4436 | \f |
284f4730 | 4437 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 4438 | static Lisp_Object accent_key_syms; |
284f4730 JB |
4439 | static Lisp_Object func_key_syms; |
4440 | static Lisp_Object mouse_syms; | |
8006e4bb | 4441 | static Lisp_Object wheel_syms; |
a24dc617 | 4442 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 4443 | |
e9bf89a0 RS |
4444 | /* This is a list of keysym codes for special "accent" characters. |
4445 | It parallels lispy_accent_keys. */ | |
4446 | ||
91433552 | 4447 | static const int lispy_accent_codes[] = |
e9bf89a0 | 4448 | { |
79a7046c | 4449 | #ifdef XK_dead_circumflex |
e9bf89a0 | 4450 | XK_dead_circumflex, |
79a7046c RS |
4451 | #else |
4452 | 0, | |
4453 | #endif | |
4454 | #ifdef XK_dead_grave | |
e9bf89a0 | 4455 | XK_dead_grave, |
79a7046c RS |
4456 | #else |
4457 | 0, | |
4458 | #endif | |
4459 | #ifdef XK_dead_tilde | |
e9bf89a0 | 4460 | XK_dead_tilde, |
79a7046c RS |
4461 | #else |
4462 | 0, | |
4463 | #endif | |
4464 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 4465 | XK_dead_diaeresis, |
79a7046c RS |
4466 | #else |
4467 | 0, | |
4468 | #endif | |
4469 | #ifdef XK_dead_macron | |
e9bf89a0 | 4470 | XK_dead_macron, |
79a7046c RS |
4471 | #else |
4472 | 0, | |
4473 | #endif | |
4474 | #ifdef XK_dead_degree | |
e9bf89a0 | 4475 | XK_dead_degree, |
79a7046c RS |
4476 | #else |
4477 | 0, | |
4478 | #endif | |
4479 | #ifdef XK_dead_acute | |
e9bf89a0 | 4480 | XK_dead_acute, |
79a7046c RS |
4481 | #else |
4482 | 0, | |
4483 | #endif | |
4484 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 4485 | XK_dead_cedilla, |
79a7046c RS |
4486 | #else |
4487 | 0, | |
4488 | #endif | |
4489 | #ifdef XK_dead_breve | |
e9bf89a0 | 4490 | XK_dead_breve, |
79a7046c RS |
4491 | #else |
4492 | 0, | |
4493 | #endif | |
4494 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 4495 | XK_dead_ogonek, |
79a7046c RS |
4496 | #else |
4497 | 0, | |
4498 | #endif | |
4499 | #ifdef XK_dead_caron | |
e9bf89a0 | 4500 | XK_dead_caron, |
79a7046c RS |
4501 | #else |
4502 | 0, | |
4503 | #endif | |
4504 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 4505 | XK_dead_doubleacute, |
79a7046c RS |
4506 | #else |
4507 | 0, | |
4508 | #endif | |
4509 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 4510 | XK_dead_abovedot, |
79a7046c RS |
4511 | #else |
4512 | 0, | |
4513 | #endif | |
ed3230db DL |
4514 | #ifdef XK_dead_abovering |
4515 | XK_dead_abovering, | |
4516 | #else | |
4517 | 0, | |
4518 | #endif | |
4519 | #ifdef XK_dead_iota | |
4520 | XK_dead_iota, | |
4521 | #else | |
4522 | 0, | |
4523 | #endif | |
4524 | #ifdef XK_dead_belowdot | |
4525 | XK_dead_belowdot, | |
4526 | #else | |
4527 | 0, | |
4528 | #endif | |
4529 | #ifdef XK_dead_voiced_sound | |
4530 | XK_dead_voiced_sound, | |
4531 | #else | |
4532 | 0, | |
4533 | #endif | |
4534 | #ifdef XK_dead_semivoiced_sound | |
4535 | XK_dead_semivoiced_sound, | |
4536 | #else | |
4537 | 0, | |
4538 | #endif | |
4539 | #ifdef XK_dead_hook | |
4540 | XK_dead_hook, | |
4541 | #else | |
4542 | 0, | |
4543 | #endif | |
4544 | #ifdef XK_dead_horn | |
4545 | XK_dead_horn, | |
4546 | #else | |
4547 | 0, | |
4548 | #endif | |
e9bf89a0 RS |
4549 | }; |
4550 | ||
4551 | /* This is a list of Lisp names for special "accent" characters. | |
4552 | It parallels lispy_accent_codes. */ | |
4553 | ||
24021b38 | 4554 | static const char *const lispy_accent_keys[] = |
e9bf89a0 RS |
4555 | { |
4556 | "dead-circumflex", | |
4557 | "dead-grave", | |
4558 | "dead-tilde", | |
4559 | "dead-diaeresis", | |
4560 | "dead-macron", | |
4561 | "dead-degree", | |
4562 | "dead-acute", | |
4563 | "dead-cedilla", | |
4564 | "dead-breve", | |
4565 | "dead-ogonek", | |
4566 | "dead-caron", | |
4567 | "dead-doubleacute", | |
4568 | "dead-abovedot", | |
ed3230db DL |
4569 | "dead-abovering", |
4570 | "dead-iota", | |
4571 | "dead-belowdot", | |
4572 | "dead-voiced-sound", | |
4573 | "dead-semivoiced-sound", | |
4574 | "dead-hook", | |
4575 | "dead-horn", | |
e9bf89a0 RS |
4576 | }; |
4577 | ||
e98a93eb GV |
4578 | #ifdef HAVE_NTGUI |
4579 | #define FUNCTION_KEY_OFFSET 0x0 | |
4580 | ||
24021b38 | 4581 | const char *const lispy_function_keys[] = |
e98a93eb GV |
4582 | { |
4583 | 0, /* 0 */ | |
c60ee5e7 | 4584 | |
e98a93eb GV |
4585 | 0, /* VK_LBUTTON 0x01 */ |
4586 | 0, /* VK_RBUTTON 0x02 */ | |
4587 | "cancel", /* VK_CANCEL 0x03 */ | |
4588 | 0, /* VK_MBUTTON 0x04 */ | |
c60ee5e7 | 4589 | |
e98a93eb | 4590 | 0, 0, 0, /* 0x05 .. 0x07 */ |
c60ee5e7 | 4591 | |
e98a93eb GV |
4592 | "backspace", /* VK_BACK 0x08 */ |
4593 | "tab", /* VK_TAB 0x09 */ | |
c60ee5e7 | 4594 | |
e98a93eb | 4595 | 0, 0, /* 0x0A .. 0x0B */ |
c60ee5e7 | 4596 | |
e98a93eb GV |
4597 | "clear", /* VK_CLEAR 0x0C */ |
4598 | "return", /* VK_RETURN 0x0D */ | |
c60ee5e7 | 4599 | |
e98a93eb | 4600 | 0, 0, /* 0x0E .. 0x0F */ |
c60ee5e7 | 4601 | |
1161d367 GV |
4602 | 0, /* VK_SHIFT 0x10 */ |
4603 | 0, /* VK_CONTROL 0x11 */ | |
4604 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 4605 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 4606 | "capslock", /* VK_CAPITAL 0x14 */ |
ba991a0e JR |
4607 | "kana", /* VK_KANA/VK_HANGUL 0x15 */ |
4608 | 0, /* 0x16 */ | |
4609 | "junja", /* VK_JUNJA 0x17 */ | |
4610 | "final", /* VK_FINAL 0x18 */ | |
4611 | "kanji", /* VK_KANJI/VK_HANJA 0x19 */ | |
4612 | 0, /* 0x1A */ | |
1161d367 | 4613 | "escape", /* VK_ESCAPE 0x1B */ |
ba991a0e JR |
4614 | "convert", /* VK_CONVERT 0x1C */ |
4615 | "non-convert", /* VK_NONCONVERT 0x1D */ | |
4616 | "accept", /* VK_ACCEPT 0x1E */ | |
4617 | "mode-change", /* VK_MODECHANGE 0x1F */ | |
e98a93eb GV |
4618 | 0, /* VK_SPACE 0x20 */ |
4619 | "prior", /* VK_PRIOR 0x21 */ | |
4620 | "next", /* VK_NEXT 0x22 */ | |
4621 | "end", /* VK_END 0x23 */ | |
4622 | "home", /* VK_HOME 0x24 */ | |
4623 | "left", /* VK_LEFT 0x25 */ | |
4624 | "up", /* VK_UP 0x26 */ | |
4625 | "right", /* VK_RIGHT 0x27 */ | |
4626 | "down", /* VK_DOWN 0x28 */ | |
4627 | "select", /* VK_SELECT 0x29 */ | |
4628 | "print", /* VK_PRINT 0x2A */ | |
4629 | "execute", /* VK_EXECUTE 0x2B */ | |
4630 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
4631 | "insert", /* VK_INSERT 0x2D */ | |
4632 | "delete", /* VK_DELETE 0x2E */ | |
4633 | "help", /* VK_HELP 0x2F */ | |
c60ee5e7 | 4634 | |
e98a93eb | 4635 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ |
c60ee5e7 | 4636 | |
e98a93eb | 4637 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4638 | |
e98a93eb | 4639 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ |
c60ee5e7 | 4640 | |
e98a93eb | 4641 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ |
c60ee5e7 JB |
4642 | |
4643 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4644 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
e98a93eb | 4645 | 0, 0, 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4646 | |
e376f90d RS |
4647 | "lwindow", /* VK_LWIN 0x5B */ |
4648 | "rwindow", /* VK_RWIN 0x5C */ | |
4649 | "apps", /* VK_APPS 0x5D */ | |
ba991a0e JR |
4650 | 0, /* 0x5E */ |
4651 | "sleep", | |
e98a93eb GV |
4652 | "kp-0", /* VK_NUMPAD0 0x60 */ |
4653 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
4654 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
4655 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
4656 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
4657 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
4658 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
4659 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
4660 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
4661 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
4662 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
4663 | "kp-add", /* VK_ADD 0x6B */ | |
4664 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
4665 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
4666 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
4667 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
4668 | "f1", /* VK_F1 0x70 */ | |
4669 | "f2", /* VK_F2 0x71 */ | |
4670 | "f3", /* VK_F3 0x72 */ | |
4671 | "f4", /* VK_F4 0x73 */ | |
4672 | "f5", /* VK_F5 0x74 */ | |
4673 | "f6", /* VK_F6 0x75 */ | |
4674 | "f7", /* VK_F7 0x76 */ | |
4675 | "f8", /* VK_F8 0x77 */ | |
4676 | "f9", /* VK_F9 0x78 */ | |
4677 | "f10", /* VK_F10 0x79 */ | |
4678 | "f11", /* VK_F11 0x7A */ | |
4679 | "f12", /* VK_F12 0x7B */ | |
4680 | "f13", /* VK_F13 0x7C */ | |
4681 | "f14", /* VK_F14 0x7D */ | |
4682 | "f15", /* VK_F15 0x7E */ | |
4683 | "f16", /* VK_F16 0x7F */ | |
4684 | "f17", /* VK_F17 0x80 */ | |
4685 | "f18", /* VK_F18 0x81 */ | |
4686 | "f19", /* VK_F19 0x82 */ | |
4687 | "f20", /* VK_F20 0x83 */ | |
4688 | "f21", /* VK_F21 0x84 */ | |
4689 | "f22", /* VK_F22 0x85 */ | |
4690 | "f23", /* VK_F23 0x86 */ | |
4691 | "f24", /* VK_F24 0x87 */ | |
c60ee5e7 | 4692 | |
e98a93eb GV |
4693 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ |
4694 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
c60ee5e7 | 4695 | |
e98a93eb GV |
4696 | "kp-numlock", /* VK_NUMLOCK 0x90 */ |
4697 | "scroll", /* VK_SCROLL 0x91 */ | |
ba991a0e JR |
4698 | /* Not sure where the following block comes from. |
4699 | Windows headers have NEC and Fujitsu specific keys in | |
4700 | this block, but nothing generic. */ | |
e376f90d RS |
4701 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
4702 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
4703 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
4704 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
4705 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
4706 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
4707 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
4708 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
4709 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
4710 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
4711 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
4712 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
4713 | ||
4714 | 0, 0, /* 0x9E .. 0x9F */ | |
4715 | ||
e98a93eb GV |
4716 | /* |
4717 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 4718 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb | 4719 | * No other API or message will distinguish left and right keys this way. |
ba991a0e | 4720 | * 0xA0 .. 0xA5 |
e98a93eb | 4721 | */ |
ba991a0e | 4722 | 0, 0, 0, 0, 0, 0, |
c60ee5e7 | 4723 | |
ba991a0e JR |
4724 | /* Multimedia keys. These are handled as WM_APPCOMMAND, which allows us |
4725 | to enable them selectively, and gives access to a few more functions. | |
4726 | See lispy_multimedia_keys below. */ | |
4727 | 0, 0, 0, 0, 0, 0, 0, /* 0xA6 .. 0xAC Browser */ | |
4728 | 0, 0, 0, /* 0xAD .. 0xAF Volume */ | |
4729 | 0, 0, 0, 0, /* 0xB0 .. 0xB3 Media */ | |
4730 | 0, 0, 0, 0, /* 0xB4 .. 0xB7 Apps */ | |
c60ee5e7 | 4731 | |
ba991a0e JR |
4732 | /* 0xB8 .. 0xC0 "OEM" keys - all seem to be punctuation. */ |
4733 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4734 | |
ba991a0e JR |
4735 | /* 0xC1 - 0xDA unallocated, 0xDB-0xDF more OEM keys */ |
4736 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
4737 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
c60ee5e7 | 4738 | |
ba991a0e JR |
4739 | 0, /* 0xE0 */ |
4740 | "ax", /* VK_OEM_AX 0xE1 */ | |
4741 | 0, /* VK_OEM_102 0xE2 */ | |
4742 | "ico-help", /* VK_ICO_HELP 0xE3 */ | |
4743 | "ico-00", /* VK_ICO_00 0xE4 */ | |
e66f9a1b | 4744 | 0, /* VK_PROCESSKEY 0xE5 - used by IME */ |
ba991a0e | 4745 | "ico-clear", /* VK_ICO_CLEAR 0xE6 */ |
e66f9a1b | 4746 | 0, /* VK_PACKET 0xE7 - used to pass unicode chars */ |
ba991a0e JR |
4747 | 0, /* 0xE8 */ |
4748 | "reset", /* VK_OEM_RESET 0xE9 */ | |
4749 | "jump", /* VK_OEM_JUMP 0xEA */ | |
4750 | "oem-pa1", /* VK_OEM_PA1 0xEB */ | |
4751 | "oem-pa2", /* VK_OEM_PA2 0xEC */ | |
4752 | "oem-pa3", /* VK_OEM_PA3 0xED */ | |
4753 | "wsctrl", /* VK_OEM_WSCTRL 0xEE */ | |
4754 | "cusel", /* VK_OEM_CUSEL 0xEF */ | |
4755 | "oem-attn", /* VK_OEM_ATTN 0xF0 */ | |
4756 | "finish", /* VK_OEM_FINISH 0xF1 */ | |
4757 | "copy", /* VK_OEM_COPY 0xF2 */ | |
4758 | "auto", /* VK_OEM_AUTO 0xF3 */ | |
4759 | "enlw", /* VK_OEM_ENLW 0xF4 */ | |
4760 | "backtab", /* VK_OEM_BACKTAB 0xF5 */ | |
e98a93eb GV |
4761 | "attn", /* VK_ATTN 0xF6 */ |
4762 | "crsel", /* VK_CRSEL 0xF7 */ | |
4763 | "exsel", /* VK_EXSEL 0xF8 */ | |
4764 | "ereof", /* VK_EREOF 0xF9 */ | |
4765 | "play", /* VK_PLAY 0xFA */ | |
4766 | "zoom", /* VK_ZOOM 0xFB */ | |
4767 | "noname", /* VK_NONAME 0xFC */ | |
4768 | "pa1", /* VK_PA1 0xFD */ | |
4769 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 4770 | 0 /* 0xFF */ |
e98a93eb GV |
4771 | }; |
4772 | ||
ba991a0e JR |
4773 | /* Some of these duplicate the "Media keys" on newer keyboards, |
4774 | but they are delivered to the application in a different way. */ | |
24021b38 | 4775 | static const char *const lispy_multimedia_keys[] = |
ba991a0e JR |
4776 | { |
4777 | 0, | |
4778 | "browser-back", | |
4779 | "browser-forward", | |
4780 | "browser-refresh", | |
4781 | "browser-stop", | |
4782 | "browser-search", | |
4783 | "browser-favorites", | |
4784 | "browser-home", | |
4785 | "volume-mute", | |
4786 | "volume-down", | |
4787 | "volume-up", | |
4788 | "media-next", | |
4789 | "media-previous", | |
4790 | "media-stop", | |
4791 | "media-play-pause", | |
4792 | "mail", | |
4793 | "media-select", | |
4794 | "app-1", | |
4795 | "app-2", | |
4796 | "bass-down", | |
4797 | "bass-boost", | |
4798 | "bass-up", | |
4799 | "treble-down", | |
4800 | "treble-up", | |
4801 | "mic-volume-mute", | |
4802 | "mic-volume-down", | |
4803 | "mic-volume-up", | |
4804 | "help", | |
4805 | "find", | |
4806 | "new", | |
4807 | "open", | |
4808 | "close", | |
4809 | "save", | |
4810 | "print", | |
4811 | "undo", | |
4812 | "redo", | |
4813 | "copy", | |
4814 | "cut", | |
4815 | "paste", | |
4816 | "mail-reply", | |
4817 | "mail-forward", | |
4818 | "mail-send", | |
4819 | "spell-check", | |
4820 | "toggle-dictate-command", | |
4821 | "mic-toggle", | |
4822 | "correction-list", | |
4823 | "media-play", | |
4824 | "media-pause", | |
4825 | "media-record", | |
4826 | "media-fast-forward", | |
4827 | "media-rewind", | |
4828 | "media-channel-up", | |
4829 | "media-channel-down" | |
4830 | }; | |
4831 | ||
04f215f0 | 4832 | #else /* not HAVE_NTGUI */ |
e98a93eb | 4833 | |
ed3230db DL |
4834 | /* This should be dealt with in XTread_socket now, and that doesn't |
4835 | depend on the client system having the Kana syms defined. See also | |
4836 | the XK_kana_A case below. */ | |
4837 | #if 0 | |
37cd9f30 | 4838 | #ifdef XK_kana_A |
24021b38 | 4839 | static const char *const lispy_kana_keys[] = |
37cd9f30 KH |
4840 | { |
4841 | /* X Keysym value */ | |
4842 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
4843 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
4844 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
4845 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
4846 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
4847 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
4848 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
4849 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
4850 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
4851 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
c60ee5e7 | 4852 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", |
37cd9f30 KH |
4853 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", |
4854 | "kana-i", "kana-u", "kana-e", "kana-o", | |
4855 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
4856 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
4857 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
4858 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
4859 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
4860 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
4861 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
4862 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
4863 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
4864 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
4865 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
4866 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
4867 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
4868 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
4869 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
4870 | }; | |
4871 | #endif /* XK_kana_A */ | |
ed3230db | 4872 | #endif /* 0 */ |
37cd9f30 | 4873 | |
04f215f0 RS |
4874 | #define FUNCTION_KEY_OFFSET 0xff00 |
4875 | ||
284f4730 JB |
4876 | /* You'll notice that this table is arranged to be conveniently |
4877 | indexed by X Windows keysym values. */ | |
24021b38 | 4878 | static const char *const lispy_function_keys[] = |
284f4730 JB |
4879 | { |
4880 | /* X Keysym value */ | |
4881 | ||
75045dcb RS |
4882 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
4883 | "backspace", "tab", "linefeed", "clear", | |
4884 | 0, "return", 0, 0, | |
4885 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
4886 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 4887 | 0, 0, 0, 0, |
75045dcb RS |
4888 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
4889 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
4890 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
4891 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
4892 | "eisu-toggle", /* 0xff30...3f */ | |
4893 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
4894 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
4895 | ||
75045dcb RS |
4896 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
4897 | "down", "prior", "next", "end", | |
4898 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4899 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
4900 | "print", | |
4901 | "execute", | |
4902 | "insert", | |
4903 | 0, /* 0xff64 */ | |
4904 | "undo", | |
4905 | "redo", | |
4906 | "menu", | |
4907 | "find", | |
4908 | "cancel", | |
4909 | "help", | |
4910 | "break", /* 0xff6b */ | |
4911 | ||
75045dcb RS |
4912 | 0, 0, 0, 0, |
4913 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
4914 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
4915 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
4916 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4917 | "kp-tab", /* 0xff89 */ | |
4918 | 0, 0, 0, | |
4919 | "kp-enter", /* 0xff8d */ | |
4920 | 0, 0, 0, | |
4921 | "kp-f1", /* 0xff91 */ | |
4922 | "kp-f2", | |
4923 | "kp-f3", | |
4924 | "kp-f4", | |
872157e7 RS |
4925 | "kp-home", /* 0xff95 */ |
4926 | "kp-left", | |
4927 | "kp-up", | |
4928 | "kp-right", | |
4929 | "kp-down", | |
4930 | "kp-prior", /* kp-page-up */ | |
4931 | "kp-next", /* kp-page-down */ | |
4932 | "kp-end", | |
4933 | "kp-begin", | |
4934 | "kp-insert", | |
4935 | "kp-delete", | |
4936 | 0, /* 0xffa0 */ | |
4937 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
4938 | "kp-multiply", /* 0xffaa */ |
4939 | "kp-add", | |
4940 | "kp-separator", | |
4941 | "kp-subtract", | |
4942 | "kp-decimal", | |
4943 | "kp-divide", /* 0xffaf */ | |
4944 | "kp-0", /* 0xffb0 */ | |
4945 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
4946 | 0, /* 0xffba */ | |
4947 | 0, 0, | |
4948 | "kp-equal", /* 0xffbd */ | |
4949 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
4950 | "f2", |
4951 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
4952 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
4953 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
4954 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
4955 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
4956 | 0, 0, 0, 0, 0, 0, 0, 0, | |
4957 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
4958 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 4959 | }; |
284f4730 | 4960 | |
04f215f0 RS |
4961 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
4962 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
4963 | ||
24021b38 | 4964 | static const char *const iso_lispy_function_keys[] = |
04f215f0 RS |
4965 | { |
4966 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
4967 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
4968 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
4969 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
4970 | "iso-lefttab", /* 0xfe20 */ | |
c60ee5e7 JB |
4971 | "iso-move-line-up", "iso-move-line-down", |
4972 | "iso-partial-line-up", "iso-partial-line-down", | |
4973 | "iso-partial-space-left", "iso-partial-space-right", | |
04f215f0 RS |
4974 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ |
4975 | "iso-release-margin-left", "iso-release-margin-right", | |
4976 | "iso-release-both-margins", | |
4977 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
4978 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
4979 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
4980 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
4981 | }; | |
4982 | ||
4983 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 4984 | |
8e1e4240 | 4985 | Lisp_Object Vlispy_mouse_stem; |
284f4730 | 4986 | |
24021b38 | 4987 | static const char *const lispy_wheel_names[] = |
8006e4bb | 4988 | { |
13899bc1 | 4989 | "wheel-up", "wheel-down", "wheel-left", "wheel-right" |
8006e4bb JR |
4990 | }; |
4991 | ||
a24dc617 RS |
4992 | /* drag-n-drop events are generated when a set of selected files are |
4993 | dragged from another application and dropped onto an Emacs window. */ | |
24021b38 | 4994 | static const char *const lispy_drag_n_drop_names[] = |
a24dc617 RS |
4995 | { |
4996 | "drag-n-drop" | |
4997 | }; | |
4998 | ||
3c370943 | 4999 | /* Scroll bar parts. */ |
4bb994d1 | 5000 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda | 5001 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
eef28553 | 5002 | Lisp_Object Qtop, Qratio; |
4bb994d1 | 5003 | |
3c370943 | 5004 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
24021b38 | 5005 | static Lisp_Object *const scroll_bar_parts[] = { |
db08707d | 5006 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
eef28553 | 5007 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll, &Qratio |
4bb994d1 JB |
5008 | }; |
5009 | ||
7b4aedb9 | 5010 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 5011 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
5012 | |
5013 | The elements have the form | |
5014 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
5015 | where REST is the cdr of a position as it would be reported in the event. | |
5016 | ||
5017 | The make_lispy_event function stores positions here to tell the | |
5018 | difference between click and drag events, and to store the starting | |
5019 | location to be included in drag events. */ | |
5020 | ||
5021 | static Lisp_Object button_down_location; | |
88cb0656 | 5022 | |
fbcd35bd JB |
5023 | /* Information about the most recent up-going button event: Which |
5024 | button, what location, and what time. */ | |
5025 | ||
559f9d04 RS |
5026 | static int last_mouse_button; |
5027 | static int last_mouse_x; | |
5028 | static int last_mouse_y; | |
5029 | static unsigned long button_down_time; | |
fbcd35bd | 5030 | |
fbcd35bd JB |
5031 | /* The number of clicks in this multiple-click. */ |
5032 | ||
5033 | int double_click_count; | |
5034 | ||
9173a8fb CY |
5035 | /* X and Y are frame-relative coordinates for a click or wheel event. |
5036 | Return a Lisp-style event list. */ | |
6b61353c KH |
5037 | |
5038 | static Lisp_Object | |
9173a8fb | 5039 | make_lispy_position (struct frame *f, Lisp_Object x, Lisp_Object y, |
d3da34e0 | 5040 | unsigned long time) |
6b61353c | 5041 | { |
6b61353c KH |
5042 | enum window_part part; |
5043 | Lisp_Object posn = Qnil; | |
5044 | Lisp_Object extra_info = Qnil; | |
9173a8fb CY |
5045 | /* Coordinate pixel positions to return. */ |
5046 | int xret = 0, yret = 0; | |
5047 | /* The window under frame pixel coordinates (x,y) */ | |
5048 | Lisp_Object window = f | |
5049 | ? window_from_coordinates (f, XINT (x), XINT (y), &part, 0) | |
5050 | : Qnil; | |
6b61353c KH |
5051 | |
5052 | if (WINDOWP (window)) | |
5053 | { | |
5054 | /* It's a click in window window at frame coordinates (x,y) */ | |
5055 | struct window *w = XWINDOW (window); | |
5056 | Lisp_Object string_info = Qnil; | |
ace1712c | 5057 | EMACS_INT textpos = -1; |
9173a8fb CY |
5058 | int col = -1, row = -1; |
5059 | int dx = -1, dy = -1; | |
6b61353c KH |
5060 | int width = -1, height = -1; |
5061 | Lisp_Object object = Qnil; | |
5062 | ||
9173a8fb CY |
5063 | /* Pixel coordinates relative to the window corner. */ |
5064 | int wx = XINT (x) - WINDOW_LEFT_EDGE_X (w); | |
5065 | int wy = XINT (y) - WINDOW_TOP_EDGE_Y (w); | |
6b61353c | 5066 | |
9173a8fb CY |
5067 | /* For text area clicks, return X, Y relative to the corner of |
5068 | this text area. Note that dX, dY etc are set below, by | |
5069 | buffer_posn_from_coords. */ | |
6507c4c7 KS |
5070 | if (part == ON_TEXT) |
5071 | { | |
9173a8fb CY |
5072 | xret = XINT (x) - window_box_left (w, TEXT_AREA); |
5073 | yret = wy - WINDOW_HEADER_LINE_HEIGHT (w); | |
6507c4c7 | 5074 | } |
8547874a EZ |
5075 | /* For mode line and header line clicks, return X, Y relative to |
5076 | the left window edge. Use mode_line_string to look for a | |
5077 | string on the click position. */ | |
6507c4c7 | 5078 | else if (part == ON_MODE_LINE || part == ON_HEADER_LINE) |
6b61353c | 5079 | { |
6b61353c | 5080 | Lisp_Object string; |
ace1712c | 5081 | EMACS_INT charpos; |
6b61353c | 5082 | |
9173a8fb CY |
5083 | posn = (part == ON_MODE_LINE) ? Qmode_line : Qheader_line; |
5084 | /* Note that mode_line_string takes COL, ROW as pixels and | |
5085 | converts them to characters. */ | |
5086 | col = wx; | |
5087 | row = wy; | |
5088 | string = mode_line_string (w, part, &col, &row, &charpos, | |
6b61353c KH |
5089 | &object, &dx, &dy, &width, &height); |
5090 | if (STRINGP (string)) | |
5091 | string_info = Fcons (string, make_number (charpos)); | |
9173a8fb CY |
5092 | textpos = (w == XWINDOW (selected_window) |
5093 | && current_buffer == XBUFFER (w->buffer)) | |
5094 | ? PT : XMARKER (w->pointm)->charpos; | |
5095 | ||
5096 | xret = wx; | |
8547874a | 5097 | yret = wy; |
6b61353c | 5098 | } |
9173a8fb CY |
5099 | /* For fringes and margins, Y is relative to the area's (and the |
5100 | window's) top edge, while X is meaningless. */ | |
6b61353c KH |
5101 | else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN) |
5102 | { | |
5103 | Lisp_Object string; | |
ace1712c | 5104 | EMACS_INT charpos; |
6b61353c KH |
5105 | |
5106 | posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin; | |
9173a8fb CY |
5107 | col = wx; |
5108 | row = wy; | |
5109 | string = marginal_area_string (w, part, &col, &row, &charpos, | |
6b61353c KH |
5110 | &object, &dx, &dy, &width, &height); |
5111 | if (STRINGP (string)) | |
5112 | string_info = Fcons (string, make_number (charpos)); | |
9173a8fb | 5113 | yret = wy - WINDOW_HEADER_LINE_HEIGHT (w); |
6b61353c | 5114 | } |
a65fc2c3 | 5115 | else if (part == ON_LEFT_FRINGE) |
6b61353c | 5116 | { |
a65fc2c3 | 5117 | posn = Qleft_fringe; |
9173a8fb CY |
5118 | col = 0; |
5119 | dx = wx | |
5120 | - (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5121 | ? 0 : window_box_width (w, LEFT_MARGIN_AREA)); | |
5122 | dy = yret = wy - WINDOW_HEADER_LINE_HEIGHT (w); | |
3d566707 | 5123 | } |
a65fc2c3 | 5124 | else if (part == ON_RIGHT_FRINGE) |
3d566707 | 5125 | { |
a65fc2c3 | 5126 | posn = Qright_fringe; |
9173a8fb CY |
5127 | col = 0; |
5128 | dx = wx | |
5129 | - window_box_width (w, LEFT_MARGIN_AREA) | |
5130 | - window_box_width (w, TEXT_AREA) | |
5131 | - (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
5132 | ? window_box_width (w, RIGHT_MARGIN_AREA) | |
5133 | : 0); | |
5134 | dy = yret = wy - WINDOW_HEADER_LINE_HEIGHT (w); | |
a65fc2c3 | 5135 | } |
9173a8fb | 5136 | else if (part == ON_VERTICAL_BORDER) |
a65fc2c3 | 5137 | { |
9173a8fb CY |
5138 | posn = Qvertical_line; |
5139 | width = 1; | |
5140 | dx = 0; | |
5141 | dy = yret = wy; | |
6b61353c | 5142 | } |
9173a8fb | 5143 | /* Nothing special for part == ON_SCROLL_BAR. */ |
6b61353c | 5144 | |
9173a8fb CY |
5145 | /* For clicks in the text area, fringes, or margins, call |
5146 | buffer_posn_from_coords to extract TEXTPOS, the buffer | |
5147 | position nearest to the click. */ | |
6b61353c KH |
5148 | if (textpos < 0) |
5149 | { | |
5150 | Lisp_Object string2, object2 = Qnil; | |
5151 | struct display_pos p; | |
5152 | int dx2, dy2; | |
5153 | int width2, height2; | |
9173a8fb CY |
5154 | /* The pixel X coordinate passed to buffer_posn_from_coords |
5155 | is the X coordinate relative to the text area for | |
5156 | text-area clicks, zero otherwise. */ | |
5157 | int x2 = (part == ON_TEXT) ? xret : 0; | |
5158 | int y2 = wy; | |
5159 | ||
5160 | string2 = buffer_posn_from_coords (w, &x2, &y2, &p, | |
6b61353c KH |
5161 | &object2, &dx2, &dy2, |
5162 | &width2, &height2); | |
5163 | textpos = CHARPOS (p.pos); | |
9173a8fb CY |
5164 | if (col < 0) col = x2; |
5165 | if (row < 0) row = y2; | |
6b61353c KH |
5166 | if (dx < 0) dx = dx2; |
5167 | if (dy < 0) dy = dy2; | |
5168 | if (width < 0) width = width2; | |
5169 | if (height < 0) height = height2; | |
5170 | ||
5171 | if (NILP (posn)) | |
5172 | { | |
5173 | posn = make_number (textpos); | |
5174 | if (STRINGP (string2)) | |
5175 | string_info = Fcons (string2, | |
5176 | make_number (CHARPOS (p.string_pos))); | |
5177 | } | |
5178 | if (NILP (object)) | |
5179 | object = object2; | |
5180 | } | |
5181 | ||
5182 | #ifdef HAVE_WINDOW_SYSTEM | |
5183 | if (IMAGEP (object)) | |
5184 | { | |
5185 | Lisp_Object image_map, hotspot; | |
5186 | if ((image_map = Fplist_get (XCDR (object), QCmap), | |
5187 | !NILP (image_map)) | |
5188 | && (hotspot = find_hot_spot (image_map, dx, dy), | |
5189 | CONSP (hotspot)) | |
5190 | && (hotspot = XCDR (hotspot), CONSP (hotspot))) | |
5191 | posn = XCAR (hotspot); | |
5192 | } | |
5193 | #endif | |
5194 | ||
5195 | /* Object info */ | |
9173a8fb CY |
5196 | extra_info |
5197 | = list3 (object, | |
5198 | Fcons (make_number (dx), make_number (dy)), | |
5199 | Fcons (make_number (width), make_number (height))); | |
6b61353c KH |
5200 | |
5201 | /* String info */ | |
5202 | extra_info = Fcons (string_info, | |
5203 | Fcons (make_number (textpos), | |
9173a8fb CY |
5204 | Fcons (Fcons (make_number (col), |
5205 | make_number (row)), | |
6b61353c KH |
5206 | extra_info))); |
5207 | } | |
5208 | else if (f != 0) | |
9173a8fb | 5209 | XSETFRAME (window, f); |
6b61353c | 5210 | else |
9173a8fb | 5211 | window = Qnil; |
6b61353c KH |
5212 | |
5213 | return Fcons (window, | |
5214 | Fcons (posn, | |
9173a8fb CY |
5215 | Fcons (Fcons (make_number (xret), |
5216 | make_number (yret)), | |
6b61353c KH |
5217 | Fcons (make_number (time), |
5218 | extra_info)))); | |
5219 | } | |
5220 | ||
284f4730 JB |
5221 | /* Given a struct input_event, build the lisp event which represents |
5222 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
5223 | movement buffer, which should have a movement event in it. |
5224 | ||
5225 | Note that events must be passed to this function in the order they | |
5226 | are received; this function stores the location of button presses | |
5227 | in order to build drag events when the button is released. */ | |
284f4730 JB |
5228 | |
5229 | static Lisp_Object | |
d3da34e0 | 5230 | make_lispy_event (struct input_event *event) |
284f4730 | 5231 | { |
79a7046c RS |
5232 | int i; |
5233 | ||
0220c518 | 5234 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 5235 | { |
284f4730 | 5236 | /* A simple keystroke. */ |
3b8f9651 | 5237 | case ASCII_KEYSTROKE_EVENT: |
3b8f9651 | 5238 | case MULTIBYTE_CHAR_KEYSTROKE_EVENT: |
a50e723f KH |
5239 | { |
5240 | Lisp_Object lispy_c; | |
41118bd3 | 5241 | EMACS_INT c = event->code; |
6d0867e5 SM |
5242 | if (event->kind == ASCII_KEYSTROKE_EVENT) |
5243 | { | |
5244 | c &= 0377; | |
5245 | eassert (c == event->code); | |
5246 | /* Turn ASCII characters into control characters | |
5247 | when proper. */ | |
5248 | if (event->modifiers & ctrl_modifier) | |
5249 | { | |
5250 | c = make_ctrl_char (c); | |
5251 | event->modifiers &= ~ctrl_modifier; | |
5252 | } | |
5253 | } | |
a50e723f | 5254 | |
6d0867e5 SM |
5255 | /* Add in the other modifier bits. The shift key was taken care |
5256 | of by the X code. */ | |
24d80a06 SM |
5257 | c |= (event->modifiers |
5258 | & (meta_modifier | alt_modifier | |
5259 | | hyper_modifier | super_modifier | ctrl_modifier)); | |
6d0867e5 SM |
5260 | /* Distinguish Shift-SPC from SPC. */ |
5261 | if ((event->code) == 040 | |
5262 | && event->modifiers & shift_modifier) | |
5263 | c |= shift_modifier; | |
24d80a06 SM |
5264 | button_down_time = 0; |
5265 | XSETFASTINT (lispy_c, c); | |
a50e723f KH |
5266 | return lispy_c; |
5267 | } | |
5268 | ||
83d92ee0 DR |
5269 | #ifdef HAVE_NS |
5270 | /* NS_NONKEY_EVENTs are just like NON_ASCII_KEYSTROKE_EVENTs, | |
5271 | except that they are non-key events (last-nonmenu-event is nil). */ | |
5272 | case NS_NONKEY_EVENT: | |
5273 | #endif | |
5274 | ||
284f4730 JB |
5275 | /* A function key. The symbol may need to have modifier prefixes |
5276 | tacked onto it. */ | |
3b8f9651 | 5277 | case NON_ASCII_KEYSTROKE_EVENT: |
559f9d04 | 5278 | button_down_time = 0; |
e9bf89a0 RS |
5279 | |
5280 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
5281 | if (event->code == lispy_accent_codes[i]) | |
5282 | return modify_event_symbol (i, | |
5283 | event->modifiers, | |
80e4aa30 | 5284 | Qfunction_key, Qnil, |
e9bf89a0 RS |
5285 | lispy_accent_keys, &accent_key_syms, |
5286 | (sizeof (lispy_accent_keys) | |
5287 | / sizeof (lispy_accent_keys[0]))); | |
5288 | ||
ed3230db | 5289 | #if 0 |
37cd9f30 KH |
5290 | #ifdef XK_kana_A |
5291 | if (event->code >= 0x400 && event->code < 0x500) | |
5292 | return modify_event_symbol (event->code - 0x400, | |
5293 | event->modifiers & ~shift_modifier, | |
5294 | Qfunction_key, Qnil, | |
5295 | lispy_kana_keys, &func_key_syms, | |
5296 | (sizeof (lispy_kana_keys) | |
5297 | / sizeof (lispy_kana_keys[0]))); | |
5298 | #endif /* XK_kana_A */ | |
ed3230db | 5299 | #endif /* 0 */ |
37cd9f30 | 5300 | |
111c4138 | 5301 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
5302 | if (event->code < FUNCTION_KEY_OFFSET |
5303 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
5304 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
5305 | event->modifiers, | |
5306 | Qfunction_key, Qnil, | |
5307 | iso_lispy_function_keys, &func_key_syms, | |
5308 | (sizeof (iso_lispy_function_keys) | |
5309 | / sizeof (iso_lispy_function_keys[0]))); | |
111c4138 | 5310 | #endif |
656280a6 | 5311 | |
4c8bc894 SM |
5312 | /* Handle system-specific or unknown keysyms. */ |
5313 | if (event->code & (1 << 28) | |
5314 | || event->code - FUNCTION_KEY_OFFSET < 0 | |
656280a6 | 5315 | || (event->code - FUNCTION_KEY_OFFSET |
4c8bc894 SM |
5316 | >= sizeof lispy_function_keys / sizeof *lispy_function_keys) |
5317 | || !lispy_function_keys[event->code - FUNCTION_KEY_OFFSET]) | |
656280a6 | 5318 | { |
4c8bc894 SM |
5319 | /* We need to use an alist rather than a vector as the cache |
5320 | since we can't make a vector long enuf. */ | |
5321 | if (NILP (current_kboard->system_key_syms)) | |
5322 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
5323 | return modify_event_symbol (event->code, | |
5324 | event->modifiers, | |
5325 | Qfunction_key, | |
5326 | current_kboard->Vsystem_key_alist, | |
5327 | 0, ¤t_kboard->system_key_syms, | |
5328 | (unsigned) -1); | |
656280a6 | 5329 | } |
656280a6 GM |
5330 | |
5331 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, | |
5332 | event->modifiers, | |
5333 | Qfunction_key, Qnil, | |
5334 | lispy_function_keys, &func_key_syms, | |
5335 | (sizeof (lispy_function_keys) | |
5336 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 5337 | |
ba991a0e JR |
5338 | #ifdef WINDOWSNT |
5339 | case MULTIMEDIA_KEY_EVENT: | |
5340 | if (event->code < (sizeof (lispy_multimedia_keys) | |
5341 | / sizeof (lispy_multimedia_keys[0])) | |
5342 | && event->code > 0 && lispy_multimedia_keys[event->code]) | |
5343 | { | |
5344 | return modify_event_symbol (event->code, event->modifiers, | |
5345 | Qfunction_key, Qnil, | |
5346 | lispy_multimedia_keys, &func_key_syms, | |
5347 | (sizeof (lispy_multimedia_keys) | |
5348 | / sizeof (lispy_multimedia_keys[0]))); | |
5349 | } | |
5350 | return Qnil; | |
5351 | #endif | |
5352 | ||
514354e9 | 5353 | #ifdef HAVE_MOUSE |
df0f2ba1 | 5354 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 5355 | a press, click or drag, and build the appropriate structure. */ |
3b8f9651 | 5356 | case MOUSE_CLICK_EVENT: |
7ee32cda | 5357 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3b8f9651 | 5358 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda | 5359 | #endif |
284f4730 | 5360 | { |
e9bf89a0 | 5361 | int button = event->code; |
559f9d04 | 5362 | int is_double; |
7b4aedb9 | 5363 | Lisp_Object position; |
dbc4e1c1 JB |
5364 | Lisp_Object *start_pos_ptr; |
5365 | Lisp_Object start_pos; | |
284f4730 | 5366 | |
8c907a56 GM |
5367 | position = Qnil; |
5368 | ||
7b4aedb9 | 5369 | /* Build the position as appropriate for this mouse click. */ |
3b8f9651 | 5370 | if (event->kind == MOUSE_CLICK_EVENT) |
284f4730 | 5371 | { |
c5cf2109 | 5372 | struct frame *f = XFRAME (event->frame_or_window); |
edfda783 | 5373 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
9e20143a | 5374 | int row, column; |
6b61353c | 5375 | #endif |
9e20143a | 5376 | |
5da3133a RS |
5377 | /* Ignore mouse events that were made on frame that |
5378 | have been deleted. */ | |
5379 | if (! FRAME_LIVE_P (f)) | |
5380 | return Qnil; | |
5381 | ||
edfda783 | 5382 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
7ee32cda GM |
5383 | /* EVENT->x and EVENT->y are frame-relative pixel |
5384 | coordinates at this place. Under old redisplay, COLUMN | |
5385 | and ROW are set to frame relative glyph coordinates | |
5386 | which are then used to determine whether this click is | |
5387 | in a menu (non-toolkit version). */ | |
5388 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
5389 | &column, &row, NULL, 1); | |
7b4aedb9 | 5390 | |
eef045bf RS |
5391 | /* In the non-toolkit version, clicks on the menu bar |
5392 | are ordinary button events in the event buffer. | |
5393 | Distinguish them, and invoke the menu. | |
5394 | ||
5395 | (In the toolkit version, the toolkit handles the menu bar | |
5396 | and Emacs doesn't know about it until after the user | |
5397 | makes a selection.) */ | |
2ee250ec RS |
5398 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
5399 | && (event->modifiers & down_modifier)) | |
bb936752 | 5400 | { |
b7c49376 | 5401 | Lisp_Object items, item; |
0a0e8fe6 RS |
5402 | int hpos; |
5403 | int i; | |
5404 | ||
7ee32cda | 5405 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 5406 | item = Qnil; |
5ec75a55 | 5407 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 5408 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
5409 | { |
5410 | Lisp_Object pos, string; | |
129004d3 GM |
5411 | string = AREF (items, i + 1); |
5412 | pos = AREF (items, i + 3); | |
b7c49376 RS |
5413 | if (NILP (string)) |
5414 | break; | |
9e20143a | 5415 | if (column >= XINT (pos) |
d5db4077 | 5416 | && column < XINT (pos) + SCHARS (string)) |
b7c49376 | 5417 | { |
129004d3 | 5418 | item = AREF (items, i); |
b7c49376 RS |
5419 | break; |
5420 | } | |
5ec75a55 | 5421 | } |
9e20143a | 5422 | |
7ee32cda GM |
5423 | /* ELisp manual 2.4b says (x y) are window relative but |
5424 | code says they are frame-relative. */ | |
5ec75a55 RS |
5425 | position |
5426 | = Fcons (event->frame_or_window, | |
5427 | Fcons (Qmenu_bar, | |
5428 | Fcons (Fcons (event->x, event->y), | |
5429 | Fcons (make_number (event->timestamp), | |
5430 | Qnil)))); | |
5431 | ||
b7c49376 | 5432 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 5433 | } |
edfda783 | 5434 | #endif /* not USE_X_TOOLKIT && not USE_GTK && not HAVE_NS */ |
0aafc975 | 5435 | |
9173a8fb | 5436 | position = make_lispy_position (f, event->x, event->y, |
6b61353c | 5437 | event->timestamp); |
284f4730 | 5438 | } |
7ee32cda | 5439 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 5440 | else |
88cb0656 | 5441 | { |
7ee32cda | 5442 | /* It's a scrollbar click. */ |
6b61353c | 5443 | Lisp_Object window; |
9e20143a RS |
5444 | Lisp_Object portion_whole; |
5445 | Lisp_Object part; | |
5446 | ||
5447 | window = event->frame_or_window; | |
5448 | portion_whole = Fcons (event->x, event->y); | |
5449 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 5450 | |
db08707d RS |
5451 | position |
5452 | = Fcons (window, | |
5453 | Fcons (Qvertical_scroll_bar, | |
5454 | Fcons (portion_whole, | |
5455 | Fcons (make_number (event->timestamp), | |
5456 | Fcons (part, Qnil))))); | |
88cb0656 | 5457 | } |
7ee32cda | 5458 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 5459 | |
129004d3 | 5460 | if (button >= ASIZE (button_down_location)) |
8e1e4240 GM |
5461 | { |
5462 | button_down_location = larger_vector (button_down_location, | |
5463 | button + 1, Qnil); | |
5464 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5465 | } | |
c60ee5e7 | 5466 | |
129004d3 | 5467 | start_pos_ptr = &AREF (button_down_location, button); |
dbc4e1c1 JB |
5468 | start_pos = *start_pos_ptr; |
5469 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 5470 | |
c5cf2109 GM |
5471 | { |
5472 | /* On window-system frames, use the value of | |
5473 | double-click-fuzz as is. On other frames, interpret it | |
5474 | as a multiple of 1/8 characters. */ | |
5475 | struct frame *f; | |
5476 | int fuzz; | |
5477 | ||
5478 | if (WINDOWP (event->frame_or_window)) | |
5479 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5480 | else if (FRAMEP (event->frame_or_window)) | |
5481 | f = XFRAME (event->frame_or_window); | |
5482 | else | |
5483 | abort (); | |
5484 | ||
5485 | if (FRAME_WINDOW_P (f)) | |
5486 | fuzz = double_click_fuzz; | |
5487 | else | |
5488 | fuzz = double_click_fuzz / 8; | |
5489 | ||
5490 | is_double = (button == last_mouse_button | |
1ea40aa2 EZ |
5491 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5492 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
c5cf2109 GM |
5493 | && button_down_time != 0 |
5494 | && (EQ (Vdouble_click_time, Qt) | |
5495 | || (INTEGERP (Vdouble_click_time) | |
5496 | && ((int)(event->timestamp - button_down_time) | |
5497 | < XINT (Vdouble_click_time))))); | |
5498 | } | |
c60ee5e7 | 5499 | |
559f9d04 RS |
5500 | last_mouse_button = button; |
5501 | last_mouse_x = XINT (event->x); | |
5502 | last_mouse_y = XINT (event->y); | |
5503 | ||
7b4aedb9 JB |
5504 | /* If this is a button press, squirrel away the location, so |
5505 | we can decide later whether it was a click or a drag. */ | |
5506 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
5507 | { |
5508 | if (is_double) | |
5509 | { | |
5510 | double_click_count++; | |
5511 | event->modifiers |= ((double_click_count > 2) | |
5512 | ? triple_modifier | |
5513 | : double_modifier); | |
5514 | } | |
5515 | else | |
5516 | double_click_count = 1; | |
5517 | button_down_time = event->timestamp; | |
5518 | *start_pos_ptr = Fcopy_alist (position); | |
3b0cdcef | 5519 | ignore_mouse_drag_p = 0; |
559f9d04 | 5520 | } |
7b4aedb9 | 5521 | |
88cb0656 | 5522 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 5523 | see if this was a click or a drag. */ |
88cb0656 JB |
5524 | else if (event->modifiers & up_modifier) |
5525 | { | |
129004d3 GM |
5526 | /* If we did not see a down before this up, ignore the up. |
5527 | Probably this happened because the down event chose a | |
5528 | menu item. It would be an annoyance to treat the | |
5529 | release of the button that chose the menu item as a | |
5530 | separate event. */ | |
48e416d4 | 5531 | |
8c18cbfb | 5532 | if (!CONSP (start_pos)) |
48e416d4 RS |
5533 | return Qnil; |
5534 | ||
88cb0656 | 5535 | event->modifiers &= ~up_modifier; |
9173a8fb | 5536 | |
dbc4e1c1 | 5537 | { |
9173a8fb | 5538 | Lisp_Object new_down, down; |
d31053f9 | 5539 | EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz; |
dbc4e1c1 | 5540 | |
d31053f9 RS |
5541 | /* The third element of every position |
5542 | should be the (x,y) pair. */ | |
5543 | down = Fcar (Fcdr (Fcdr (start_pos))); | |
9173a8fb CY |
5544 | new_down = Fcar (Fcdr (Fcdr (position))); |
5545 | ||
7a6a97d7 SM |
5546 | if (CONSP (down) |
5547 | && INTEGERP (XCAR (down)) && INTEGERP (XCDR (down))) | |
d31053f9 | 5548 | { |
9173a8fb CY |
5549 | xdiff = XINT (XCAR (new_down)) - XINT (XCAR (down)); |
5550 | ydiff = XINT (XCDR (new_down)) - XINT (XCDR (down)); | |
d31053f9 RS |
5551 | } |
5552 | ||
3b0cdcef KS |
5553 | if (ignore_mouse_drag_p) |
5554 | { | |
5555 | event->modifiers |= click_modifier; | |
5556 | ignore_mouse_drag_p = 0; | |
5557 | } | |
5558 | else if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz | |
5559 | && ydiff < double_click_fuzz && ydiff > - double_click_fuzz | |
4156359e SM |
5560 | /* Maybe the mouse has moved a lot, caused scrolling, and |
5561 | eventually ended up at the same screen position (but | |
5562 | not buffer position) in which case it is a drag, not | |
5563 | a click. */ | |
5564 | /* FIXME: OTOH if the buffer position has changed | |
5565 | because of a timer or process filter rather than | |
5566 | because of mouse movement, it should be considered as | |
5567 | a click. But mouse-drag-region completely ignores | |
5568 | this case and it hasn't caused any real problem, so | |
5569 | it's probably OK to ignore it as well. */ | |
5570 | && EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position)))) | |
d31053f9 | 5571 | /* Mouse hasn't moved (much). */ |
129004d3 | 5572 | event->modifiers |= click_modifier; |
fbcd35bd JB |
5573 | else |
5574 | { | |
d31053f9 RS |
5575 | button_down_time = 0; |
5576 | event->modifiers |= drag_modifier; | |
fbcd35bd | 5577 | } |
c60ee5e7 | 5578 | |
bc536d84 RS |
5579 | /* Don't check is_double; treat this as multiple |
5580 | if the down-event was multiple. */ | |
5581 | if (double_click_count > 1) | |
5582 | event->modifiers |= ((double_click_count > 2) | |
5583 | ? triple_modifier | |
5584 | : double_modifier); | |
dbc4e1c1 | 5585 | } |
88cb0656 JB |
5586 | } |
5587 | else | |
5588 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 5589 | the up_modifier set. */ |
88cb0656 JB |
5590 | abort (); |
5591 | ||
88cb0656 | 5592 | { |
7b4aedb9 | 5593 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
5594 | Lisp_Object head; |
5595 | ||
5596 | head = modify_event_symbol (button, | |
5597 | event->modifiers, | |
8e1e4240 GM |
5598 | Qmouse_click, Vlispy_mouse_stem, |
5599 | NULL, | |
5600 | &mouse_syms, | |
5601 | XVECTOR (mouse_syms)->size); | |
88cb0656 | 5602 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
5603 | return Fcons (head, |
5604 | Fcons (start_pos, | |
5605 | Fcons (position, | |
5606 | Qnil))); | |
fbcd35bd JB |
5607 | else if (event->modifiers & (double_modifier | triple_modifier)) |
5608 | return Fcons (head, | |
5609 | Fcons (position, | |
5610 | Fcons (make_number (double_click_count), | |
5611 | Qnil))); | |
88cb0656 JB |
5612 | else |
5613 | return Fcons (head, | |
7b4aedb9 | 5614 | Fcons (position, |
88cb0656 JB |
5615 | Qnil)); |
5616 | } | |
284f4730 | 5617 | } |
db08707d | 5618 | |
8006e4bb | 5619 | case WHEEL_EVENT: |
13899bc1 | 5620 | case HORIZ_WHEEL_EVENT: |
8006e4bb JR |
5621 | { |
5622 | Lisp_Object position; | |
8006e4bb | 5623 | Lisp_Object head; |
6b61353c | 5624 | |
87d386ff | 5625 | /* Build the position as appropriate for this mouse click. */ |
87d386ff | 5626 | struct frame *f = XFRAME (event->frame_or_window); |
87d386ff JR |
5627 | |
5628 | /* Ignore wheel events that were made on frame that have been | |
5629 | deleted. */ | |
5630 | if (! FRAME_LIVE_P (f)) | |
5631 | return Qnil; | |
5632 | ||
9173a8fb | 5633 | position = make_lispy_position (f, event->x, event->y, |
6b61353c | 5634 | event->timestamp); |
87d386ff | 5635 | |
db9cd97a | 5636 | /* Set double or triple modifiers to indicate the wheel speed. */ |
87d386ff JR |
5637 | { |
5638 | /* On window-system frames, use the value of | |
5639 | double-click-fuzz as is. On other frames, interpret it | |
5640 | as a multiple of 1/8 characters. */ | |
5641 | struct frame *f; | |
5642 | int fuzz; | |
3208cb35 | 5643 | int symbol_num; |
87d386ff JR |
5644 | int is_double; |
5645 | ||
5646 | if (WINDOWP (event->frame_or_window)) | |
5647 | f = XFRAME (XWINDOW (event->frame_or_window)->frame); | |
5648 | else if (FRAMEP (event->frame_or_window)) | |
5649 | f = XFRAME (event->frame_or_window); | |
5650 | else | |
5651 | abort (); | |
5652 | ||
9173a8fb CY |
5653 | fuzz = FRAME_WINDOW_P (f) |
5654 | ? double_click_fuzz : double_click_fuzz / 8; | |
87d386ff | 5655 | |
3208cb35 YM |
5656 | if (event->modifiers & up_modifier) |
5657 | { | |
5658 | /* Emit a wheel-up event. */ | |
5659 | event->modifiers &= ~up_modifier; | |
5660 | symbol_num = 0; | |
5661 | } | |
5662 | else if (event->modifiers & down_modifier) | |
5663 | { | |
5664 | /* Emit a wheel-down event. */ | |
5665 | event->modifiers &= ~down_modifier; | |
5666 | symbol_num = 1; | |
5667 | } | |
5668 | else | |
5669 | /* Every wheel event should either have the down_modifier or | |
5670 | the up_modifier set. */ | |
5671 | abort (); | |
5672 | ||
5673 | if (event->kind == HORIZ_WHEEL_EVENT) | |
5674 | symbol_num += 2; | |
5675 | ||
5676 | is_double = (last_mouse_button == - (1 + symbol_num) | |
1ea40aa2 EZ |
5677 | && (eabs (XINT (event->x) - last_mouse_x) <= fuzz) |
5678 | && (eabs (XINT (event->y) - last_mouse_y) <= fuzz) | |
87d386ff JR |
5679 | && button_down_time != 0 |
5680 | && (EQ (Vdouble_click_time, Qt) | |
5681 | || (INTEGERP (Vdouble_click_time) | |
5682 | && ((int)(event->timestamp - button_down_time) | |
5683 | < XINT (Vdouble_click_time))))); | |
5684 | if (is_double) | |
5685 | { | |
5686 | double_click_count++; | |
5687 | event->modifiers |= ((double_click_count > 2) | |
5688 | ? triple_modifier | |
5689 | : double_modifier); | |
5690 | } | |
5691 | else | |
5692 | { | |
5693 | double_click_count = 1; | |
5694 | event->modifiers |= click_modifier; | |
5695 | } | |
5696 | ||
5697 | button_down_time = event->timestamp; | |
5698 | /* Use a negative value to distinguish wheel from mouse button. */ | |
3208cb35 | 5699 | last_mouse_button = - (1 + symbol_num); |
87d386ff JR |
5700 | last_mouse_x = XINT (event->x); |
5701 | last_mouse_y = XINT (event->y); | |
13899bc1 | 5702 | |
db9cd97a | 5703 | /* Get the symbol we should use for the wheel event. */ |
87d386ff JR |
5704 | head = modify_event_symbol (symbol_num, |
5705 | event->modifiers, | |
5706 | Qmouse_click, | |
5707 | Qnil, | |
5708 | lispy_wheel_names, | |
5709 | &wheel_syms, | |
5710 | ASIZE (wheel_syms)); | |
5711 | } | |
5712 | ||
5713 | if (event->modifiers & (double_modifier | triple_modifier)) | |
5714 | return Fcons (head, | |
5715 | Fcons (position, | |
5716 | Fcons (make_number (double_click_count), | |
5717 | Qnil))); | |
5718 | else | |
5719 | return Fcons (head, | |
5720 | Fcons (position, | |
5721 | Qnil)); | |
8006e4bb JR |
5722 | } |
5723 | ||
5724 | ||
05be3964 | 5725 | #ifdef USE_TOOLKIT_SCROLL_BARS |
7ee32cda GM |
5726 | |
5727 | /* We don't have down and up events if using toolkit scroll bars, | |
5728 | so make this always a click event. Store in the `part' of | |
5729 | the Lisp event a symbol which maps to the following actions: | |
5730 | ||
5731 | `above_handle' page up | |
5732 | `below_handle' page down | |
5733 | `up' line up | |
5734 | `down' line down | |
5735 | `top' top of buffer | |
5736 | `bottom' bottom of buffer | |
5737 | `handle' thumb has been dragged. | |
5738 | `end-scroll' end of interaction with scroll bar | |
5739 | ||
5740 | The incoming input_event contains in its `part' member an | |
5741 | index of type `enum scroll_bar_part' which we can use as an | |
5742 | index in scroll_bar_parts to get the appropriate symbol. */ | |
c60ee5e7 | 5743 | |
3b8f9651 | 5744 | case SCROLL_BAR_CLICK_EVENT: |
7ee32cda GM |
5745 | { |
5746 | Lisp_Object position, head, window, portion_whole, part; | |
5747 | ||
5748 | window = event->frame_or_window; | |
5749 | portion_whole = Fcons (event->x, event->y); | |
5750 | part = *scroll_bar_parts[(int) event->part]; | |
5751 | ||
5752 | position | |
5753 | = Fcons (window, | |
5754 | Fcons (Qvertical_scroll_bar, | |
5755 | Fcons (portion_whole, | |
5756 | Fcons (make_number (event->timestamp), | |
5757 | Fcons (part, Qnil))))); | |
5758 | ||
5759 | /* Always treat scroll bar events as clicks. */ | |
5760 | event->modifiers |= click_modifier; | |
05be3964 | 5761 | event->modifiers &= ~up_modifier; |
7ee32cda | 5762 | |
257f40f2 JD |
5763 | if (event->code >= ASIZE (mouse_syms)) |
5764 | mouse_syms = larger_vector (mouse_syms, event->code + 1, Qnil); | |
5765 | ||
7ee32cda GM |
5766 | /* Get the symbol we should use for the mouse click. */ |
5767 | head = modify_event_symbol (event->code, | |
5768 | event->modifiers, | |
14e40288 | 5769 | Qmouse_click, |
8e1e4240 GM |
5770 | Vlispy_mouse_stem, |
5771 | NULL, &mouse_syms, | |
5772 | XVECTOR (mouse_syms)->size); | |
7ee32cda GM |
5773 | return Fcons (head, Fcons (position, Qnil)); |
5774 | } | |
c60ee5e7 | 5775 | |
7ee32cda GM |
5776 | #endif /* USE_TOOLKIT_SCROLL_BARS */ |
5777 | ||
3b8f9651 | 5778 | case DRAG_N_DROP_EVENT: |
a24dc617 | 5779 | { |
a24dc617 | 5780 | FRAME_PTR f; |
6b61353c | 5781 | Lisp_Object head, position; |
a24dc617 | 5782 | Lisp_Object files; |
a24dc617 | 5783 | |
82de1de9 YM |
5784 | f = XFRAME (event->frame_or_window); |
5785 | files = event->arg; | |
a24dc617 RS |
5786 | |
5787 | /* Ignore mouse events that were made on frames that | |
5788 | have been deleted. */ | |
5789 | if (! FRAME_LIVE_P (f)) | |
5790 | return Qnil; | |
afabdbe5 | 5791 | |
9173a8fb | 5792 | position = make_lispy_position (f, event->x, event->y, |
6b61353c KH |
5793 | event->timestamp); |
5794 | ||
5795 | head = modify_event_symbol (0, event->modifiers, | |
5796 | Qdrag_n_drop, Qnil, | |
5797 | lispy_drag_n_drop_names, | |
5798 | &drag_n_drop_syms, 1); | |
5799 | return Fcons (head, | |
5800 | Fcons (position, | |
5801 | Fcons (files, | |
5802 | Qnil))); | |
a24dc617 | 5803 | } |
514354e9 | 5804 | #endif /* HAVE_MOUSE */ |
284f4730 | 5805 | |
9e2a2647 | 5806 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \ |
edfda783 | 5807 | || defined(HAVE_NS) || defined (USE_GTK) |
da8f7368 GM |
5808 | case MENU_BAR_EVENT: |
5809 | if (EQ (event->arg, event->frame_or_window)) | |
5810 | /* This is the prefix key. We translate this to | |
5811 | `(menu_bar)' because the code in keyboard.c for menu | |
5812 | events, which we use, relies on this. */ | |
5813 | return Fcons (Qmenu_bar, Qnil); | |
5814 | return event->arg; | |
2470a66f KH |
5815 | #endif |
5816 | ||
a4e19f6e SM |
5817 | case SELECT_WINDOW_EVENT: |
5818 | /* Make an event (select-window (WINDOW)). */ | |
5819 | return Fcons (Qselect_window, | |
5820 | Fcons (Fcons (event->frame_or_window, Qnil), | |
5821 | Qnil)); | |
5822 | ||
9ea173e8 | 5823 | case TOOL_BAR_EVENT: |
da8f7368 GM |
5824 | if (EQ (event->arg, event->frame_or_window)) |
5825 | /* This is the prefix key. We translate this to | |
27fd22dc | 5826 | `(tool_bar)' because the code in keyboard.c for tool bar |
da8f7368 GM |
5827 | events, which we use, relies on this. */ |
5828 | return Fcons (Qtool_bar, Qnil); | |
5829 | else if (SYMBOLP (event->arg)) | |
5830 | return apply_modifiers (event->modifiers, event->arg); | |
5831 | return event->arg; | |
5832 | ||
5833 | case USER_SIGNAL_EVENT: | |
5bf68f6e | 5834 | /* A user signal. */ |
b809d9e7 KS |
5835 | { |
5836 | char *name = find_user_signal_name (event->code); | |
5837 | if (!name) | |
5838 | abort (); | |
5839 | return intern (name); | |
5840 | } | |
c60ee5e7 | 5841 | |
3b8f9651 | 5842 | case SAVE_SESSION_EVENT: |
4ebc27a5 | 5843 | return Qsave_session; |
c60ee5e7 | 5844 | |
033b73e2 MA |
5845 | #ifdef HAVE_DBUS |
5846 | case DBUS_EVENT: | |
5847 | { | |
5848 | return Fcons (Qdbus_event, event->arg); | |
5849 | } | |
5850 | #endif /* HAVE_DBUS */ | |
5851 | ||
637fa988 JD |
5852 | case CONFIG_CHANGED_EVENT: |
5853 | return Fcons (Qconfig_changed_event, | |
5854 | Fcons (event->arg, | |
5855 | Fcons (event->frame_or_window, Qnil))); | |
7e5a23bd | 5856 | #ifdef HAVE_GPM |
ae372f41 NR |
5857 | case GPM_CLICK_EVENT: |
5858 | { | |
5859 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
5860 | Lisp_Object head, position; | |
5861 | Lisp_Object *start_pos_ptr; | |
5862 | Lisp_Object start_pos; | |
5863 | int button = event->code; | |
5864 | ||
5865 | if (button >= ASIZE (button_down_location)) | |
5866 | { | |
5867 | button_down_location = larger_vector (button_down_location, | |
5868 | button + 1, Qnil); | |
5869 | mouse_syms = larger_vector (mouse_syms, button + 1, Qnil); | |
5870 | } | |
5871 | ||
5872 | start_pos_ptr = &AREF (button_down_location, button); | |
5873 | start_pos = *start_pos_ptr; | |
5874 | ||
9173a8fb CY |
5875 | position = make_lispy_position (f, event->x, event->y, |
5876 | event->timestamp); | |
ae372f41 NR |
5877 | |
5878 | if (event->modifiers & down_modifier) | |
5879 | *start_pos_ptr = Fcopy_alist (position); | |
5880 | else if (event->modifiers & (up_modifier | drag_modifier)) | |
5881 | { | |
5882 | if (!CONSP (start_pos)) | |
5883 | return Qnil; | |
5884 | event->modifiers &= ~up_modifier; | |
5885 | } | |
5886 | ||
5887 | head = modify_event_symbol (button, | |
5888 | event->modifiers, | |
5889 | Qmouse_click, Vlispy_mouse_stem, | |
5890 | NULL, | |
5891 | &mouse_syms, | |
5892 | XVECTOR (mouse_syms)->size); | |
5893 | ||
5894 | if (event->modifiers & drag_modifier) | |
5895 | return Fcons (head, | |
5896 | Fcons (start_pos, | |
5897 | Fcons (position, | |
5898 | Qnil))); | |
5899 | else if (event->modifiers & double_modifier) | |
5900 | return Fcons (head, | |
5901 | Fcons (position, | |
5902 | Fcons (make_number (2), | |
5903 | Qnil))); | |
5904 | else if (event->modifiers & triple_modifier) | |
5905 | return Fcons (head, | |
5906 | Fcons (position, | |
5907 | Fcons (make_number (3), | |
5908 | Qnil))); | |
5909 | else | |
5910 | return Fcons (head, | |
5911 | Fcons (position, | |
5912 | Qnil)); | |
5913 | } | |
7e5a23bd | 5914 | #endif /* HAVE_GPM */ |
ae372f41 | 5915 | |
284f4730 JB |
5916 | /* The 'kind' field of the event is something we don't recognize. */ |
5917 | default: | |
48e416d4 | 5918 | abort (); |
284f4730 JB |
5919 | } |
5920 | } | |
5921 | ||
bdb1e01d | 5922 | #if defined(HAVE_MOUSE) || defined(HAVE_GPM) |
6cbff1cb | 5923 | |
284f4730 | 5924 | static Lisp_Object |
d3da34e0 JB |
5925 | make_lispy_movement (FRAME_PTR frame, Lisp_Object bar_window, enum scroll_bar_part part, |
5926 | Lisp_Object x, Lisp_Object y, unsigned long time) | |
284f4730 | 5927 | { |
3c370943 | 5928 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 5929 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 5930 | { |
9b8eb840 | 5931 | Lisp_Object part_sym; |
4bb994d1 | 5932 | |
9b8eb840 | 5933 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 5934 | return Fcons (Qscroll_bar_movement, |
9173a8fb CY |
5935 | Fcons (list5 (bar_window, |
5936 | Qvertical_scroll_bar, | |
5937 | Fcons (x, y), | |
5938 | make_number (time), | |
5939 | part_sym), | |
5940 | Qnil)); | |
4bb994d1 | 5941 | } |
4bb994d1 | 5942 | /* Or is it an ordinary mouse movement? */ |
284f4730 JB |
5943 | else |
5944 | { | |
6b61353c | 5945 | Lisp_Object position; |
9173a8fb CY |
5946 | position = make_lispy_position (frame, x, y, time); |
5947 | return list2 (Qmouse_movement, position); | |
4bb994d1 | 5948 | } |
284f4730 JB |
5949 | } |
5950 | ||
bdb1e01d | 5951 | #endif /* HAVE_MOUSE || HAVE GPM */ |
6cbff1cb | 5952 | |
cd21b839 JB |
5953 | /* Construct a switch frame event. */ |
5954 | static Lisp_Object | |
d3da34e0 | 5955 | make_lispy_switch_frame (Lisp_Object frame) |
cd21b839 JB |
5956 | { |
5957 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
5958 | } | |
0a7f1fc0 JB |
5959 | \f |
5960 | /* Manipulating modifiers. */ | |
284f4730 | 5961 | |
0a7f1fc0 | 5962 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 5963 | |
0a7f1fc0 JB |
5964 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
5965 | SYMBOL's name of the end of the modifiers; the string from this | |
5966 | position is the unmodified symbol name. | |
284f4730 | 5967 | |
0a7f1fc0 | 5968 | This doesn't use any caches. */ |
6da3dd3a | 5969 | |
0a7f1fc0 | 5970 | static int |
d3da34e0 | 5971 | parse_modifiers_uncached (Lisp_Object symbol, int *modifier_end) |
284f4730 | 5972 | { |
1b049b51 | 5973 | Lisp_Object name; |
284f4730 JB |
5974 | int i; |
5975 | int modifiers; | |
284f4730 | 5976 | |
b7826503 | 5977 | CHECK_SYMBOL (symbol); |
df0f2ba1 | 5978 | |
284f4730 | 5979 | modifiers = 0; |
1b049b51 | 5980 | name = SYMBOL_NAME (symbol); |
284f4730 | 5981 | |
1b049b51 | 5982 | for (i = 0; i+2 <= SBYTES (name); ) |
6da3dd3a RS |
5983 | { |
5984 | int this_mod_end = 0; | |
5985 | int this_mod = 0; | |
284f4730 | 5986 | |
6da3dd3a RS |
5987 | /* See if the name continues with a modifier word. |
5988 | Check that the word appears, but don't check what follows it. | |
5989 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 5990 | |
1b049b51 | 5991 | switch (SREF (name, i)) |
6da3dd3a RS |
5992 | { |
5993 | #define SINGLE_LETTER_MOD(BIT) \ | |
5994 | (this_mod_end = i + 1, this_mod = BIT) | |
5995 | ||
6da3dd3a RS |
5996 | case 'A': |
5997 | SINGLE_LETTER_MOD (alt_modifier); | |
5998 | break; | |
284f4730 | 5999 | |
6da3dd3a RS |
6000 | case 'C': |
6001 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6002 | break; | |
284f4730 | 6003 | |
6da3dd3a RS |
6004 | case 'H': |
6005 | SINGLE_LETTER_MOD (hyper_modifier); | |
6006 | break; | |
6007 | ||
6da3dd3a RS |
6008 | case 'M': |
6009 | SINGLE_LETTER_MOD (meta_modifier); | |
6010 | break; | |
6011 | ||
6da3dd3a RS |
6012 | case 'S': |
6013 | SINGLE_LETTER_MOD (shift_modifier); | |
6014 | break; | |
6015 | ||
6016 | case 's': | |
6da3dd3a RS |
6017 | SINGLE_LETTER_MOD (super_modifier); |
6018 | break; | |
6019 | ||
0a7f1fc0 | 6020 | #undef SINGLE_LETTER_MOD |
65470b52 SM |
6021 | |
6022 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
6023 | if (i + LEN + 1 <= SBYTES (name) \ | |
6024 | && ! strncmp (SDATA (name) + i, NAME, LEN)) \ | |
6025 | { \ | |
6026 | this_mod_end = i + LEN; \ | |
6027 | this_mod = BIT; \ | |
6028 | } | |
6029 | ||
6030 | case 'd': | |
6031 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6032 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6033 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6034 | break; | |
6035 | ||
6036 | case 't': | |
6037 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6038 | break; | |
6039 | #undef MULTI_LETTER_MOD | |
6040 | ||
6da3dd3a RS |
6041 | } |
6042 | ||
6043 | /* If we found no modifier, stop looking for them. */ | |
6044 | if (this_mod_end == 0) | |
6045 | break; | |
6046 | ||
6047 | /* Check there is a dash after the modifier, so that it | |
6048 | really is a modifier. */ | |
1b049b51 KR |
6049 | if (this_mod_end >= SBYTES (name) |
6050 | || SREF (name, this_mod_end) != '-') | |
6da3dd3a RS |
6051 | break; |
6052 | ||
6053 | /* This modifier is real; look for another. */ | |
6054 | modifiers |= this_mod; | |
6055 | i = this_mod_end + 1; | |
6056 | } | |
284f4730 | 6057 | |
0a7f1fc0 | 6058 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
6059 | if (! (modifiers & (down_modifier | drag_modifier |
6060 | | double_modifier | triple_modifier)) | |
1b049b51 KR |
6061 | && i + 7 == SBYTES (name) |
6062 | && strncmp (SDATA (name) + i, "mouse-", 6) == 0 | |
6063 | && ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9')) | |
0a7f1fc0 JB |
6064 | modifiers |= click_modifier; |
6065 | ||
a6d46bc1 JR |
6066 | if (! (modifiers & (double_modifier | triple_modifier)) |
6067 | && i + 6 < SBYTES (name) | |
6068 | && strncmp (SDATA (name) + i, "wheel-", 6) == 0) | |
6069 | modifiers |= click_modifier; | |
6070 | ||
0a7f1fc0 JB |
6071 | if (modifier_end) |
6072 | *modifier_end = i; | |
6073 | ||
6074 | return modifiers; | |
6075 | } | |
6076 | ||
0a7f1fc0 JB |
6077 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
6078 | prepended to the string BASE[0..BASE_LEN-1]. | |
6079 | This doesn't use any caches. */ | |
6080 | static Lisp_Object | |
d3da34e0 | 6081 | apply_modifiers_uncached (int modifiers, char *base, int base_len, int base_len_byte) |
0a7f1fc0 JB |
6082 | { |
6083 | /* Since BASE could contain nulls, we can't use intern here; we have | |
6084 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
6085 | reference to it. */ | |
301738ed RS |
6086 | char *new_mods |
6087 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 6088 | int mod_len; |
284f4730 | 6089 | |
284f4730 | 6090 | { |
0a7f1fc0 JB |
6091 | char *p = new_mods; |
6092 | ||
6093 | /* Only the event queue may use the `up' modifier; it should always | |
6094 | be turned into a click or drag event before presented to lisp code. */ | |
6095 | if (modifiers & up_modifier) | |
6096 | abort (); | |
6097 | ||
6098 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
6099 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
6100 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
6101 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
6102 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 6103 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
6104 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
6105 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
6106 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
6107 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
6108 | /* The click modifier is denoted by the absence of other modifiers. */ |
6109 | ||
6110 | *p = '\0'; | |
6111 | ||
6112 | mod_len = p - new_mods; | |
6113 | } | |
284f4730 | 6114 | |
0a7f1fc0 | 6115 | { |
9b8eb840 | 6116 | Lisp_Object new_name; |
df0f2ba1 | 6117 | |
301738ed RS |
6118 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
6119 | mod_len + base_len_byte); | |
72af86bd AS |
6120 | memcpy (SDATA (new_name), new_mods, mod_len); |
6121 | memcpy (SDATA (new_name) + mod_len, base, base_len_byte); | |
284f4730 JB |
6122 | |
6123 | return Fintern (new_name, Qnil); | |
6124 | } | |
6125 | } | |
6126 | ||
6127 | ||
24021b38 | 6128 | static const char *const modifier_names[] = |
0a7f1fc0 | 6129 | { |
fbcd35bd | 6130 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 6131 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 6132 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 6133 | }; |
80645119 | 6134 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
6135 | |
6136 | static Lisp_Object modifier_symbols; | |
6137 | ||
6138 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
6139 | static Lisp_Object | |
d3da34e0 | 6140 | lispy_modifier_list (int modifiers) |
0a7f1fc0 JB |
6141 | { |
6142 | Lisp_Object modifier_list; | |
6143 | int i; | |
6144 | ||
6145 | modifier_list = Qnil; | |
80645119 | 6146 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 6147 | if (modifiers & (1<<i)) |
80645119 JB |
6148 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
6149 | modifier_list); | |
0a7f1fc0 JB |
6150 | |
6151 | return modifier_list; | |
6152 | } | |
6153 | ||
6154 | ||
6155 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
6156 | where UNMODIFIED is the unmodified form of SYMBOL, | |
6157 | MASK is the set of modifiers present in SYMBOL's name. | |
6158 | This is similar to parse_modifiers_uncached, but uses the cache in | |
6159 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
6160 | Qevent_symbol_elements property. */ | |
3d31316f | 6161 | |
21ec2c43 SM |
6162 | #define KEY_TO_CHAR(k) (XINT (k) & ((1 << CHARACTERBITS) - 1)) |
6163 | ||
1161d367 | 6164 | Lisp_Object |
d3da34e0 | 6165 | parse_modifiers (Lisp_Object symbol) |
0a7f1fc0 | 6166 | { |
9b8eb840 | 6167 | Lisp_Object elements; |
0a7f1fc0 | 6168 | |
21ec2c43 SM |
6169 | if (INTEGERP (symbol)) |
6170 | return (Fcons (make_number (KEY_TO_CHAR (symbol)), | |
6171 | Fcons (make_number (XINT (symbol) & CHAR_MODIFIER_MASK), | |
6172 | Qnil))); | |
6173 | else if (!SYMBOLP (symbol)) | |
6174 | return Qnil; | |
6175 | ||
9b8eb840 | 6176 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
6177 | if (CONSP (elements)) |
6178 | return elements; | |
6179 | else | |
6180 | { | |
6181 | int end; | |
ec0faad2 | 6182 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 6183 | Lisp_Object unmodified; |
0a7f1fc0 JB |
6184 | Lisp_Object mask; |
6185 | ||
d5db4077 KR |
6186 | unmodified = Fintern (make_string (SDATA (SYMBOL_NAME (symbol)) + end, |
6187 | SBYTES (SYMBOL_NAME (symbol)) - end), | |
9b8eb840 KH |
6188 | Qnil); |
6189 | ||
6b61353c | 6190 | if (modifiers & ~INTMASK) |
734fef94 | 6191 | abort (); |
bb9e9bed | 6192 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
6193 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
6194 | ||
6195 | /* Cache the parsing results on SYMBOL. */ | |
6196 | Fput (symbol, Qevent_symbol_element_mask, | |
6197 | elements); | |
6198 | Fput (symbol, Qevent_symbol_elements, | |
6199 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
6200 | ||
6201 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
6202 | it would be nice to put that in unmodified's cache. | |
6203 | But we can't, since we're not sure that parse_modifiers is | |
6204 | canonical. */ | |
6205 | ||
6206 | return elements; | |
6207 | } | |
6208 | } | |
6209 | ||
58da34c7 SM |
6210 | DEFUN ("internal-event-symbol-parse-modifiers", Fevent_symbol_parse_modifiers, |
6211 | Sevent_symbol_parse_modifiers, 1, 1, 0, | |
6212 | doc: /* Parse the event symbol. For internal use. */) | |
5842a27b | 6213 | (Lisp_Object symbol) |
58da34c7 SM |
6214 | { |
6215 | /* Fill the cache if needed. */ | |
6216 | parse_modifiers (symbol); | |
6217 | /* Ignore the result (which is stored on Qevent_symbol_element_mask) | |
6218 | and use the Lispier representation stored on Qevent_symbol_elements | |
6219 | instead. */ | |
6220 | return Fget (symbol, Qevent_symbol_elements); | |
6221 | } | |
6222 | ||
0a7f1fc0 JB |
6223 | /* Apply the modifiers MODIFIERS to the symbol BASE. |
6224 | BASE must be unmodified. | |
6225 | ||
6226 | This is like apply_modifiers_uncached, but uses BASE's | |
6227 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
6228 | Qevent_symbol_elements properties, since it has that info anyway. |
6229 | ||
6230 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
6231 | the modified symbol. */ | |
0a7f1fc0 | 6232 | static Lisp_Object |
d3da34e0 | 6233 | apply_modifiers (int modifiers, Lisp_Object base) |
0a7f1fc0 | 6234 | { |
7b4aedb9 | 6235 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 6236 | |
80645119 | 6237 | /* Mask out upper bits. We don't know where this value's been. */ |
6b61353c | 6238 | modifiers &= INTMASK; |
80645119 | 6239 | |
21ec2c43 | 6240 | if (INTEGERP (base)) |
4b7ab1c4 | 6241 | return make_number (XINT (base) | modifiers); |
21ec2c43 | 6242 | |
0a7f1fc0 | 6243 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 6244 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 6245 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 6246 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
6247 | |
6248 | if (CONSP (entry)) | |
7539e11f | 6249 | new_symbol = XCDR (entry); |
7b4aedb9 JB |
6250 | else |
6251 | { | |
df0f2ba1 | 6252 | /* We have to create the symbol ourselves. */ |
7b4aedb9 | 6253 | new_symbol = apply_modifiers_uncached (modifiers, |
d5db4077 KR |
6254 | SDATA (SYMBOL_NAME (base)), |
6255 | SCHARS (SYMBOL_NAME (base)), | |
6256 | SBYTES (SYMBOL_NAME (base))); | |
7b4aedb9 JB |
6257 | |
6258 | /* Add the new symbol to the base's cache. */ | |
6259 | entry = Fcons (index, new_symbol); | |
6260 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
6261 | ||
35fb885d SM |
6262 | /* We have the parsing info now for free, so we could add it to |
6263 | the caches: | |
6264 | XSETFASTINT (index, modifiers); | |
6265 | Fput (new_symbol, Qevent_symbol_element_mask, | |
6266 | Fcons (base, Fcons (index, Qnil))); | |
6267 | Fput (new_symbol, Qevent_symbol_elements, | |
6268 | Fcons (base, lispy_modifier_list (modifiers))); | |
6269 | Sadly, this is only correct if `base' is indeed a base event, | |
6270 | which is not necessarily the case. -stef */ | |
7b4aedb9 | 6271 | } |
0a7f1fc0 | 6272 | |
df0f2ba1 | 6273 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
6274 | |
6275 | You'd think we could just set this once and for all when we | |
6276 | intern the symbol above, but reorder_modifiers may call us when | |
6277 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
6278 | because it has a Qmodifier_cache property it must have its |
6279 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
6280 | if (NILP (Fget (new_symbol, Qevent_kind))) |
6281 | { | |
9b8eb840 | 6282 | Lisp_Object kind; |
7b4aedb9 | 6283 | |
9b8eb840 | 6284 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
6285 | if (! NILP (kind)) |
6286 | Fput (new_symbol, Qevent_kind, kind); | |
6287 | } | |
6288 | ||
6289 | return new_symbol; | |
0a7f1fc0 JB |
6290 | } |
6291 | ||
6292 | ||
6293 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
6294 | return a symbol with the modifiers placed in the canonical order. | |
6295 | Canonical order is alphabetical, except for down and drag, which | |
6296 | always come last. The 'click' modifier is never written out. | |
6297 | ||
6298 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
6299 | and M-C-foo end up being equivalent in the keymap. */ | |
6300 | ||
6301 | Lisp_Object | |
d3da34e0 | 6302 | reorder_modifiers (Lisp_Object symbol) |
0a7f1fc0 JB |
6303 | { |
6304 | /* It's hopefully okay to write the code this way, since everything | |
6305 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 6306 | Lisp_Object parsed; |
0a7f1fc0 | 6307 | |
9b8eb840 | 6308 | parsed = parse_modifiers (symbol); |
7539e11f KR |
6309 | return apply_modifiers ((int) XINT (XCAR (XCDR (parsed))), |
6310 | XCAR (parsed)); | |
0a7f1fc0 JB |
6311 | } |
6312 | ||
6313 | ||
284f4730 JB |
6314 | /* For handling events, we often want to produce a symbol whose name |
6315 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
6316 | to some base, like the name of a function key or mouse button. | |
6317 | modify_event_symbol produces symbols of this sort. | |
6318 | ||
6319 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
6320 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
6321 | in the table. | |
6322 | ||
8e1e4240 GM |
6323 | Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes |
6324 | into symbol names, or a string specifying a name stem used to | |
a50e723f | 6325 | construct a symbol name or the form `STEM-N', where N is the decimal |
8e1e4240 GM |
6326 | representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is |
6327 | non-nil; otherwise NAME_TABLE is used. | |
80e4aa30 | 6328 | |
284f4730 JB |
6329 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
6330 | persist between calls to modify_event_symbol that it can use to | |
6331 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 6332 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
6333 | |
6334 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 6335 | |
284f4730 JB |
6336 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
6337 | whose prefixes should be applied to the symbol name. | |
6338 | ||
6339 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 6340 | the returned symbol. |
88cb0656 JB |
6341 | |
6342 | The symbols we create are supposed to have an | |
eb8c3be9 | 6343 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
6344 | in the symbol's name. */ |
6345 | ||
284f4730 | 6346 | static Lisp_Object |
41118bd3 | 6347 | modify_event_symbol (EMACS_INT symbol_num, unsigned int modifiers, Lisp_Object symbol_kind, |
24021b38 | 6348 | Lisp_Object name_alist_or_stem, const char *const *name_table, |
d3da34e0 | 6349 | Lisp_Object *symbol_table, unsigned int table_size) |
284f4730 | 6350 | { |
80e4aa30 RS |
6351 | Lisp_Object value; |
6352 | Lisp_Object symbol_int; | |
6353 | ||
2c834fb3 KH |
6354 | /* Get rid of the "vendor-specific" bit here. */ |
6355 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
6356 | |
6357 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 6358 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 6359 | return Qnil; |
284f4730 | 6360 | |
80e4aa30 RS |
6361 | if (CONSP (*symbol_table)) |
6362 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
6363 | ||
0a7f1fc0 | 6364 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 6365 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
6366 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
6367 | we've never used that symbol before. */ | |
80e4aa30 | 6368 | else |
88cb0656 | 6369 | { |
80e4aa30 RS |
6370 | if (! VECTORP (*symbol_table) |
6371 | || XVECTOR (*symbol_table)->size != table_size) | |
6372 | { | |
6373 | Lisp_Object size; | |
0a7f1fc0 | 6374 | |
bb9e9bed | 6375 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
6376 | *symbol_table = Fmake_vector (size, Qnil); |
6377 | } | |
284f4730 | 6378 | |
80e4aa30 RS |
6379 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
6380 | } | |
284f4730 | 6381 | |
0a7f1fc0 | 6382 | /* Have we already used this symbol before? */ |
80e4aa30 | 6383 | if (NILP (value)) |
284f4730 | 6384 | { |
0a7f1fc0 | 6385 | /* No; let's create it. */ |
8e1e4240 GM |
6386 | if (CONSP (name_alist_or_stem)) |
6387 | value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem)); | |
6388 | else if (STRINGP (name_alist_or_stem)) | |
6389 | { | |
d5db4077 | 6390 | int len = SBYTES (name_alist_or_stem); |
8e1e4240 | 6391 | char *buf = (char *) alloca (len + 50); |
987a3489 KL |
6392 | sprintf (buf, "%s-%ld", SDATA (name_alist_or_stem), |
6393 | (long) XINT (symbol_int) + 1); | |
8e1e4240 GM |
6394 | value = intern (buf); |
6395 | } | |
2ff6714d | 6396 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 6397 | value = intern (name_table[symbol_num]); |
b64b4075 | 6398 | |
e98a93eb | 6399 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
6400 | if (NILP (value)) |
6401 | { | |
6402 | char *name = x_get_keysym_name (symbol_num); | |
6403 | if (name) | |
6404 | value = intern (name); | |
6405 | } | |
6406 | #endif | |
6407 | ||
b64b4075 | 6408 | if (NILP (value)) |
d1f50460 RS |
6409 | { |
6410 | char buf[20]; | |
41118bd3 | 6411 | sprintf (buf, "key-%ld", (long)symbol_num); |
80e4aa30 | 6412 | value = intern (buf); |
d1f50460 | 6413 | } |
0a7f1fc0 | 6414 | |
80e4aa30 | 6415 | if (CONSP (*symbol_table)) |
4205cb08 | 6416 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
6417 | else |
6418 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
6419 | ||
df0f2ba1 | 6420 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
6421 | builds the Qevent_symbol_elements property, which the user |
6422 | cares about. */ | |
80e4aa30 RS |
6423 | apply_modifiers (modifiers & click_modifier, value); |
6424 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 6425 | } |
88cb0656 | 6426 | |
0a7f1fc0 | 6427 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 6428 | return apply_modifiers (modifiers, value); |
284f4730 | 6429 | } |
6da3dd3a RS |
6430 | \f |
6431 | /* Convert a list that represents an event type, | |
6432 | such as (ctrl meta backspace), into the usual representation of that | |
6433 | event type as a number or a symbol. */ | |
6434 | ||
a1706c30 | 6435 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
4707d2d0 PJ |
6436 | doc: /* Convert the event description list EVENT-DESC to an event type. |
6437 | EVENT-DESC should contain one base event type (a character or symbol) | |
6438 | and zero or more modifier names (control, meta, hyper, super, shift, alt, | |
6439 | drag, down, double or triple). The base must be last. | |
6440 | The return value is an event type (a character or symbol) which | |
6441 | has the same base event type and all the specified modifiers. */) | |
5842a27b | 6442 | (Lisp_Object event_desc) |
6da3dd3a RS |
6443 | { |
6444 | Lisp_Object base; | |
6445 | int modifiers = 0; | |
6446 | Lisp_Object rest; | |
6447 | ||
6448 | base = Qnil; | |
e57d8fd8 | 6449 | rest = event_desc; |
6da3dd3a RS |
6450 | while (CONSP (rest)) |
6451 | { | |
6452 | Lisp_Object elt; | |
6453 | int this = 0; | |
6454 | ||
7539e11f KR |
6455 | elt = XCAR (rest); |
6456 | rest = XCDR (rest); | |
6da3dd3a | 6457 | |
3d31316f | 6458 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 6459 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 6460 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
6461 | |
6462 | if (this != 0) | |
6463 | modifiers |= this; | |
6464 | else if (!NILP (base)) | |
6465 | error ("Two bases given in one event"); | |
6466 | else | |
6467 | base = elt; | |
6468 | ||
6da3dd3a RS |
6469 | } |
6470 | ||
3d31316f | 6471 | /* Let the symbol A refer to the character A. */ |
d5db4077 | 6472 | if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1) |
4069e0f8 | 6473 | XSETINT (base, SREF (SYMBOL_NAME (base), 0)); |
3d31316f | 6474 | |
6da3dd3a RS |
6475 | if (INTEGERP (base)) |
6476 | { | |
3d31316f RS |
6477 | /* Turn (shift a) into A. */ |
6478 | if ((modifiers & shift_modifier) != 0 | |
6479 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
6480 | { | |
6481 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
6482 | modifiers &= ~shift_modifier; | |
6483 | } | |
6484 | ||
6485 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 6486 | if (modifiers & ctrl_modifier) |
3d31316f | 6487 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
6488 | | make_ctrl_char (XINT (base))); |
6489 | else | |
6490 | return make_number (modifiers | XINT (base)); | |
6491 | } | |
6492 | else if (SYMBOLP (base)) | |
6493 | return apply_modifiers (modifiers, base); | |
6494 | else | |
8c907a56 GM |
6495 | { |
6496 | error ("Invalid base event"); | |
6497 | return Qnil; | |
6498 | } | |
6da3dd3a RS |
6499 | } |
6500 | ||
3d31316f RS |
6501 | /* Try to recognize SYMBOL as a modifier name. |
6502 | Return the modifier flag bit, or 0 if not recognized. */ | |
6503 | ||
0bcfd7d7 SM |
6504 | int |
6505 | parse_solitary_modifier (Lisp_Object symbol) | |
3d31316f | 6506 | { |
1b049b51 | 6507 | Lisp_Object name = SYMBOL_NAME (symbol); |
3d31316f | 6508 | |
1b049b51 | 6509 | switch (SREF (name, 0)) |
3d31316f RS |
6510 | { |
6511 | #define SINGLE_LETTER_MOD(BIT) \ | |
1b049b51 | 6512 | if (SBYTES (name) == 1) \ |
3d31316f RS |
6513 | return BIT; |
6514 | ||
6515 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
1b049b51 KR |
6516 | if (LEN == SBYTES (name) \ |
6517 | && ! strncmp (SDATA (name), NAME, LEN)) \ | |
3d31316f RS |
6518 | return BIT; |
6519 | ||
6520 | case 'A': | |
6521 | SINGLE_LETTER_MOD (alt_modifier); | |
6522 | break; | |
6523 | ||
6524 | case 'a': | |
6525 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
6526 | break; | |
6527 | ||
6528 | case 'C': | |
6529 | SINGLE_LETTER_MOD (ctrl_modifier); | |
6530 | break; | |
6531 | ||
6532 | case 'c': | |
6533 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
6534 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
6535 | break; | |
6536 | ||
6537 | case 'H': | |
6538 | SINGLE_LETTER_MOD (hyper_modifier); | |
6539 | break; | |
6540 | ||
6541 | case 'h': | |
6542 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
6543 | break; | |
6544 | ||
6545 | case 'M': | |
6546 | SINGLE_LETTER_MOD (meta_modifier); | |
6547 | break; | |
6548 | ||
6549 | case 'm': | |
6550 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
6551 | break; | |
6552 | ||
6553 | case 'S': | |
6554 | SINGLE_LETTER_MOD (shift_modifier); | |
6555 | break; | |
6556 | ||
6557 | case 's': | |
6558 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
6559 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
6560 | SINGLE_LETTER_MOD (super_modifier); | |
6561 | break; | |
6562 | ||
6563 | case 'd': | |
6564 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
6565 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
6566 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
6567 | break; | |
6568 | ||
6569 | case 't': | |
6570 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
6571 | break; | |
6572 | ||
6573 | #undef SINGLE_LETTER_MOD | |
6574 | #undef MULTI_LETTER_MOD | |
6575 | } | |
6576 | ||
6577 | return 0; | |
6578 | } | |
6579 | ||
6da3dd3a RS |
6580 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
6581 | Such a list is not valid as an event, | |
6582 | but it can be a Lucid-style event type list. */ | |
6583 | ||
6584 | int | |
d3da34e0 | 6585 | lucid_event_type_list_p (Lisp_Object object) |
6da3dd3a RS |
6586 | { |
6587 | Lisp_Object tail; | |
6588 | ||
6589 | if (! CONSP (object)) | |
6590 | return 0; | |
902ae620 GM |
6591 | |
6592 | if (EQ (XCAR (object), Qhelp_echo) | |
6593 | || EQ (XCAR (object), Qvertical_line) | |
6594 | || EQ (XCAR (object), Qmode_line) | |
6595 | || EQ (XCAR (object), Qheader_line)) | |
6596 | return 0; | |
6da3dd3a | 6597 | |
7539e11f | 6598 | for (tail = object; CONSP (tail); tail = XCDR (tail)) |
6da3dd3a RS |
6599 | { |
6600 | Lisp_Object elt; | |
7539e11f | 6601 | elt = XCAR (tail); |
6da3dd3a RS |
6602 | if (! (INTEGERP (elt) || SYMBOLP (elt))) |
6603 | return 0; | |
6604 | } | |
6605 | ||
6606 | return NILP (tail); | |
6607 | } | |
284f4730 | 6608 | \f |
284f4730 JB |
6609 | /* Store into *addr a value nonzero if terminal input chars are available. |
6610 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
6611 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
6612 | (In fact, this may actually read some input.) |
6613 | ||
a2d5fca0 JD |
6614 | If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run |
6615 | timer events that are ripe. | |
6616 | If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal | |
6617 | events (FOCUS_IN_EVENT). | |
6618 | If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse | |
354344a2 | 6619 | movements and toolkit scroll bar thumb drags. */ |
284f4730 JB |
6620 | |
6621 | static void | |
d3da34e0 | 6622 | get_input_pending (int *addr, int flags) |
284f4730 JB |
6623 | { |
6624 | /* First of all, have we already counted some input? */ | |
a2d5fca0 | 6625 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6626 | |
6627 | /* If input is being read as it arrives, and we have none, there is none. */ | |
6628 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
6629 | return; | |
6630 | ||
6631 | /* Try to read some input and see how much we get. */ | |
6632 | gobble_input (0); | |
a2d5fca0 | 6633 | *addr = (!NILP (Vquit_flag) || readable_events (flags)); |
284f4730 JB |
6634 | } |
6635 | ||
81931ba1 | 6636 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 6637 | |
07a59269 | 6638 | void |
d3da34e0 | 6639 | gobble_input (int expected) |
284f4730 | 6640 | { |
284f4730 JB |
6641 | #ifdef SIGIO |
6642 | if (interrupt_input) | |
6643 | { | |
32676c08 | 6644 | SIGMASKTYPE mask; |
4f8aaa74 | 6645 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 6646 | read_avail_input (expected); |
e065a56e | 6647 | sigsetmask (mask); |
284f4730 JB |
6648 | } |
6649 | else | |
81931ba1 | 6650 | #ifdef POLL_FOR_INPUT |
428a555e KL |
6651 | /* XXX This condition was (read_socket_hook && !interrupt_input), |
6652 | but read_socket_hook is not global anymore. Let's pretend that | |
6653 | it's always set. */ | |
6654 | if (!interrupt_input && poll_suppress_count == 0) | |
81931ba1 RS |
6655 | { |
6656 | SIGMASKTYPE mask; | |
4f8aaa74 | 6657 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
6658 | read_avail_input (expected); |
6659 | sigsetmask (mask); | |
6660 | } | |
6661 | else | |
284f4730 | 6662 | #endif |
284f4730 | 6663 | #endif |
12063bc5 | 6664 | read_avail_input (expected); |
284f4730 | 6665 | } |
a8015ab5 | 6666 | |
3b8f9651 | 6667 | /* Put a BUFFER_SWITCH_EVENT in the buffer |
241ceaf7 RS |
6668 | so that read_key_sequence will notice the new current buffer. */ |
6669 | ||
07a59269 | 6670 | void |
d3da34e0 | 6671 | record_asynch_buffer_change (void) |
a8015ab5 KH |
6672 | { |
6673 | struct input_event event; | |
a30f0615 | 6674 | Lisp_Object tem; |
1269a761 | 6675 | EVENT_INIT (event); |
a30f0615 | 6676 | |
3b8f9651 | 6677 | event.kind = BUFFER_SWITCH_EVENT; |
a8015ab5 | 6678 | event.frame_or_window = Qnil; |
da8f7368 | 6679 | event.arg = Qnil; |
241ceaf7 | 6680 | |
a30f0615 RS |
6681 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
6682 | The purpose of the event is to make read_key_sequence look up the | |
6683 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
77defa9a EZ |
6684 | and the event could cause trouble by messing up (input-pending-p). |
6685 | Note: Fwaiting_for_user_input_p always returns nil when async | |
6686 | subprocesses aren't supported. */ | |
a30f0615 RS |
6687 | tem = Fwaiting_for_user_input_p (); |
6688 | if (NILP (tem)) | |
6689 | return; | |
6690 | ||
241ceaf7 RS |
6691 | /* Make sure no interrupt happens while storing the event. */ |
6692 | #ifdef SIGIO | |
6693 | if (interrupt_input) | |
6694 | { | |
6695 | SIGMASKTYPE mask; | |
4f8aaa74 | 6696 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
6697 | kbd_buffer_store_event (&event); |
6698 | sigsetmask (mask); | |
6699 | } | |
6700 | else | |
6701 | #endif | |
6702 | { | |
6703 | stop_polling (); | |
6704 | kbd_buffer_store_event (&event); | |
6705 | start_polling (); | |
6706 | } | |
a8015ab5 | 6707 | } |
284f4730 | 6708 | \f |
284f4730 JB |
6709 | /* Read any terminal input already buffered up by the system |
6710 | into the kbd_buffer, but do not wait. | |
6711 | ||
6712 | EXPECTED should be nonzero if the caller knows there is some input. | |
6713 | ||
284f4730 JB |
6714 | Returns the number of keyboard chars read, or -1 meaning |
6715 | this is a bad time to try to read input. */ | |
6716 | ||
6717 | static int | |
d3da34e0 | 6718 | read_avail_input (int expected) |
284f4730 | 6719 | { |
6b61353c | 6720 | int nread = 0; |
80d4c824 | 6721 | int err = 0; |
6ed8eeff | 6722 | struct terminal *t; |
1269a761 | 6723 | |
23479b40 YM |
6724 | /* Store pending user signal events, if any. */ |
6725 | if (store_user_signal_events ()) | |
6726 | expected = 0; | |
6727 | ||
6ed8eeff KL |
6728 | /* Loop through the available terminals, and call their input hooks. */ |
6729 | t = terminal_list; | |
6730 | while (t) | |
6b61353c | 6731 | { |
6ed8eeff | 6732 | struct terminal *next = t->next_terminal; |
6b61353c | 6733 | |
6ed8eeff | 6734 | if (t->read_socket_hook) |
d448e982 | 6735 | { |
3b7fbceb | 6736 | int nr; |
057a9ab4 | 6737 | struct input_event hold_quit; |
d448e982 | 6738 | |
057a9ab4 KL |
6739 | EVENT_INIT (hold_quit); |
6740 | hold_quit.kind = NO_EVENT; | |
351d2e14 | 6741 | |
057a9ab4 | 6742 | /* No need for FIONREAD or fcntl; just say don't wait. */ |
6ed8eeff | 6743 | while (nr = (*t->read_socket_hook) (t, expected, &hold_quit), nr > 0) |
057a9ab4 KL |
6744 | { |
6745 | nread += nr; | |
6746 | expected = 0; | |
6747 | } | |
033b73e2 | 6748 | |
057a9ab4 KL |
6749 | if (nr == -1) /* Not OK to read input now. */ |
6750 | { | |
6751 | err = 1; | |
6752 | } | |
6753 | else if (nr == -2) /* Non-transient error. */ | |
6754 | { | |
6ed8eeff | 6755 | /* The terminal device terminated; it should be closed. */ |
033b73e2 | 6756 | |
6ed8eeff KL |
6757 | /* Kill Emacs if this was our last terminal. */ |
6758 | if (!terminal_list->next_terminal) | |
057a9ab4 KL |
6759 | /* Formerly simply reported no input, but that |
6760 | sometimes led to a failure of Emacs to terminate. | |
6761 | SIGHUP seems appropriate if we can't reach the | |
6762 | terminal. */ | |
6763 | /* ??? Is it really right to send the signal just to | |
6764 | this process rather than to the whole process | |
6765 | group? Perhaps on systems with FIONREAD Emacs is | |
6766 | alone in its group. */ | |
6767 | kill (getpid (), SIGHUP); | |
033b73e2 | 6768 | |
e2749141 | 6769 | /* XXX Is calling delete_terminal safe here? It calls delete_frame. */ |
adf6a429 SM |
6770 | { |
6771 | Lisp_Object tmp; | |
6772 | XSETTERMINAL (tmp, t); | |
6773 | Fdelete_terminal (tmp, Qnoelisp); | |
6774 | } | |
057a9ab4 | 6775 | } |
351d2e14 | 6776 | |
057a9ab4 KL |
6777 | if (hold_quit.kind != NO_EVENT) |
6778 | kbd_buffer_store_event (&hold_quit); | |
d448e982 | 6779 | } |
6b61353c | 6780 | |
6ed8eeff | 6781 | t = next; |
6b61353c | 6782 | } |
284f4730 | 6783 | |
1cbfd764 KL |
6784 | if (err && !nread) |
6785 | nread = -1; | |
6786 | ||
e044e4fc JD |
6787 | frame_make_pointer_visible (); |
6788 | ||
8f1ce423 KL |
6789 | return nread; |
6790 | } | |
6791 | ||
fd503d99 KH |
6792 | static void |
6793 | decode_keyboard_code (struct tty_display_info *tty, | |
6794 | struct coding_system *coding, | |
6795 | unsigned char *buf, int nbytes) | |
6796 | { | |
6797 | unsigned char *src = buf; | |
6798 | const unsigned char *p; | |
6799 | int i; | |
6800 | ||
6801 | if (nbytes == 0) | |
6802 | return; | |
6803 | if (tty->meta_key != 2) | |
6804 | for (i = 0; i < nbytes; i++) | |
6805 | buf[i] &= ~0x80; | |
6806 | if (coding->carryover_bytes > 0) | |
6807 | { | |
6808 | src = alloca (coding->carryover_bytes + nbytes); | |
6809 | memcpy (src, coding->carryover, coding->carryover_bytes); | |
6810 | memcpy (src + coding->carryover_bytes, buf, nbytes); | |
6811 | nbytes += coding->carryover_bytes; | |
6812 | } | |
6813 | coding->destination = alloca (nbytes * 4); | |
6814 | coding->dst_bytes = nbytes * 4; | |
6815 | decode_coding_c_string (coding, src, nbytes, Qnil); | |
6816 | if (coding->produced_char == 0) | |
6817 | return; | |
6818 | for (i = 0, p = coding->destination; i < coding->produced_char; i++) | |
6819 | { | |
6820 | struct input_event buf; | |
6821 | ||
6822 | EVENT_INIT (buf); | |
6823 | buf.code = STRING_CHAR_ADVANCE (p); | |
6824 | buf.kind = (ASCII_CHAR_P (buf.code) | |
6825 | ? ASCII_KEYSTROKE_EVENT : MULTIBYTE_CHAR_KEYSTROKE_EVENT); | |
6826 | /* See the comment in tty_read_avail_input. */ | |
6827 | buf.frame_or_window = tty->top_frame; | |
6828 | buf.arg = Qnil; | |
6829 | kbd_buffer_store_event (&buf); | |
6830 | } | |
6831 | } | |
6832 | ||
8f1ce423 KL |
6833 | /* This is the tty way of reading available input. |
6834 | ||
6ed8eeff | 6835 | Note that each terminal device has its own `struct terminal' object, |
8f1ce423 | 6836 | and so this function is called once for each individual termcap |
6ed8eeff | 6837 | terminal. The first parameter indicates which terminal to read from. */ |
d448e982 | 6838 | |
8f1ce423 | 6839 | int |
6ed8eeff | 6840 | tty_read_avail_input (struct terminal *terminal, |
057a9ab4 KL |
6841 | int expected, |
6842 | struct input_event *hold_quit) | |
8f1ce423 | 6843 | { |
057a9ab4 KL |
6844 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
6845 | the kbd_buffer can really hold. That may prevent loss | |
6846 | of characters on some systems when input is stuffed at us. */ | |
6847 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
8f1ce423 | 6848 | int n_to_read, i; |
6ed8eeff | 6849 | struct tty_display_info *tty = terminal->display_info.tty; |
8f1ce423 | 6850 | int nread = 0; |
86520d8c | 6851 | #ifdef subprocesses |
cb768704 J |
6852 | int buffer_free = KBD_BUFFER_SIZE - kbd_buffer_nr_stored () - 1; |
6853 | ||
6854 | if (kbd_on_hold_p () || buffer_free <= 0) | |
6855 | return 0; | |
86520d8c | 6856 | #endif /* subprocesses */ |
3b7fbceb | 6857 | |
bcc3646e | 6858 | if (!terminal->name) /* Don't read from a dead terminal. */ |
1bc973c2 | 6859 | return 0; |
ab797f65 | 6860 | |
cb22456d EZ |
6861 | if (terminal->type != output_termcap |
6862 | && terminal->type != output_msdos_raw) | |
8f1ce423 | 6863 | abort (); |
3b7fbceb | 6864 | |
ac3d2625 | 6865 | /* XXX I think the following code should be moved to separate hook |
8f1ce423 | 6866 | functions in system-dependent files. */ |
bc536d84 | 6867 | #ifdef WINDOWSNT |
8f1ce423 | 6868 | return 0; |
bc536d84 | 6869 | #else /* not WINDOWSNT */ |
cb22456d EZ |
6870 | if (! tty->term_initted) /* In case we get called during bootstrap. */ |
6871 | return 0; | |
6872 | ||
6873 | if (! tty->input) | |
6874 | return 0; /* The terminal is suspended. */ | |
6875 | ||
80e4aa30 | 6876 | #ifdef MSDOS |
8f1ce423 KL |
6877 | n_to_read = dos_keysns (); |
6878 | if (n_to_read == 0) | |
6879 | return 0; | |
3b7fbceb | 6880 | |
8f1ce423 KL |
6881 | cbuf[0] = dos_keyread (); |
6882 | nread = 1; | |
3b7fbceb | 6883 | |
c3a2738c | 6884 | #else /* not MSDOS */ |
7e5a23bd | 6885 | #ifdef HAVE_GPM |
71f44e7a | 6886 | if (gpm_tty == tty) |
7be1c21a MB |
6887 | { |
6888 | Gpm_Event event; | |
6889 | struct input_event hold_quit; | |
d347e494 | 6890 | int gpm, fd = gpm_fd; |
ae372f41 | 6891 | |
7be1c21a MB |
6892 | EVENT_INIT (hold_quit); |
6893 | hold_quit.kind = NO_EVENT; | |
ae372f41 | 6894 | |
d347e494 SM |
6895 | /* gpm==1 if event received. |
6896 | gpm==0 if the GPM daemon has closed the connection, in which case | |
6897 | Gpm_GetEvent closes gpm_fd and clears it to -1, which is why | |
6898 | we save it in `fd' so close_gpm can remove it from the | |
6899 | select masks. | |
6900 | gpm==-1 if a protocol error or EWOULDBLOCK; the latter is normal. */ | |
7be1c21a MB |
6901 | while (gpm = Gpm_GetEvent (&event), gpm == 1) { |
6902 | nread += handle_one_term_event (tty, &event, &hold_quit); | |
6903 | } | |
d347e494 | 6904 | if (gpm == 0) |
ed5ff21d | 6905 | /* Presumably the GPM daemon has closed the connection. */ |
d347e494 | 6906 | close_gpm (fd); |
7be1c21a MB |
6907 | if (hold_quit.kind != NO_EVENT) |
6908 | kbd_buffer_store_event (&hold_quit); | |
6909 | if (nread) | |
6910 | return nread; | |
6911 | } | |
7e5a23bd | 6912 | #endif /* HAVE_GPM */ |
ae372f41 | 6913 | |
7be1c21a | 6914 | /* Determine how many characters we should *try* to read. */ |
284f4730 | 6915 | #ifdef FIONREAD |
8f1ce423 | 6916 | /* Find out how much input is available. */ |
0b0d3e0b | 6917 | if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0) |
8f1ce423 KL |
6918 | { |
6919 | if (! noninteractive) | |
6ed8eeff | 6920 | return -2; /* Close this terminal. */ |
8f1ce423 | 6921 | else |
d448e982 | 6922 | n_to_read = 0; |
8f1ce423 KL |
6923 | } |
6924 | if (n_to_read == 0) | |
6925 | return 0; | |
6926 | if (n_to_read > sizeof cbuf) | |
6927 | n_to_read = sizeof cbuf; | |
284f4730 | 6928 | #else /* no FIONREAD */ |
e39a993c | 6929 | #if defined (USG) || defined(CYGWIN) |
8f1ce423 KL |
6930 | /* Read some input if available, but don't wait. */ |
6931 | n_to_read = sizeof cbuf; | |
0b0d3e0b | 6932 | fcntl (fileno (tty->input), F_SETFL, O_NDELAY); |
284f4730 | 6933 | #else |
8f1ce423 | 6934 | you lose; |
284f4730 JB |
6935 | #endif |
6936 | #endif | |
6937 | ||
86520d8c | 6938 | #ifdef subprocesses |
cb768704 J |
6939 | /* Don't read more than we can store. */ |
6940 | if (n_to_read > buffer_free) | |
6941 | n_to_read = buffer_free; | |
86520d8c | 6942 | #endif /* subprocesses */ |
cb768704 | 6943 | |
8f1ce423 KL |
6944 | /* Now read; for one reason or another, this will not block. |
6945 | NREAD is set to the number of chars read. */ | |
6946 | do | |
6947 | { | |
0b0d3e0b | 6948 | nread = emacs_read (fileno (tty->input), cbuf, n_to_read); |
8f1ce423 KL |
6949 | /* POSIX infers that processes which are not in the session leader's |
6950 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
6951 | this part standard and returns -1 from read (0) with errno==EIO | |
6952 | when the control tty is taken away. | |
ac3d2625 | 6953 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ |
8f1ce423 | 6954 | if (nread == -1 && errno == EIO) |
6ed8eeff | 6955 | return -2; /* Close this terminal. */ |
4624371d | 6956 | #if defined (AIX) && defined (_BSD) |
8f1ce423 KL |
6957 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
6958 | This looks incorrect, but it isn't, because _BSD causes | |
6959 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
6960 | and that causes a value other than 0 when there is no input. */ | |
6961 | if (nread == 0) | |
6ed8eeff | 6962 | return -2; /* Close this terminal. */ |
284f4730 | 6963 | #endif |
8f1ce423 KL |
6964 | } |
6965 | while ( | |
6966 | /* We used to retry the read if it was interrupted. | |
6967 | But this does the wrong thing when O_NDELAY causes | |
6968 | an EAGAIN error. Does anybody know of a situation | |
6969 | where a retry is actually needed? */ | |
791587ee | 6970 | #if 0 |
8f1ce423 | 6971 | nread < 0 && (errno == EAGAIN |
6aec06f5 | 6972 | #ifdef EFAULT |
8f1ce423 | 6973 | || errno == EFAULT |
80e4aa30 | 6974 | #endif |
284f4730 | 6975 | #ifdef EBADSLT |
8f1ce423 | 6976 | || errno == EBADSLT |
284f4730 | 6977 | #endif |
8f1ce423 | 6978 | ) |
791587ee | 6979 | #else |
8f1ce423 | 6980 | 0 |
791587ee | 6981 | #endif |
8f1ce423 | 6982 | ); |
284f4730 JB |
6983 | |
6984 | #ifndef FIONREAD | |
e39a993c | 6985 | #if defined (USG) || defined (CYGWIN) |
0b0d3e0b | 6986 | fcntl (fileno (tty->input), F_SETFL, 0); |
e39a993c | 6987 | #endif /* USG or CYGWIN */ |
284f4730 | 6988 | #endif /* no FIONREAD */ |
3b7fbceb | 6989 | |
8f1ce423 KL |
6990 | if (nread <= 0) |
6991 | return nread; | |
3b7fbceb | 6992 | |
9628b887 KL |
6993 | #endif /* not MSDOS */ |
6994 | #endif /* not WINDOWSNT */ | |
3b7fbceb | 6995 | |
fd503d99 KH |
6996 | if (TERMINAL_KEYBOARD_CODING (terminal)->common_flags |
6997 | & CODING_REQUIRE_DECODING_MASK) | |
6998 | { | |
6999 | struct coding_system *coding = TERMINAL_KEYBOARD_CODING (terminal); | |
7000 | int from; | |
485db0ba | 7001 | |
fd503d99 KH |
7002 | /* Decode the key sequence except for those with meta |
7003 | modifiers. */ | |
7004 | for (i = from = 0; ; i++) | |
7005 | if (i == nread || (tty->meta_key == 1 && (cbuf[i] & 0x80))) | |
7006 | { | |
7007 | struct input_event buf; | |
7008 | ||
7009 | decode_keyboard_code (tty, coding, cbuf + from, i - from); | |
7010 | if (i == nread) | |
7011 | break; | |
7012 | ||
7013 | EVENT_INIT (buf); | |
7014 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7015 | buf.modifiers = meta_modifier; | |
7016 | buf.code = cbuf[i] & ~0x80; | |
7017 | /* See the comment below. */ | |
7018 | buf.frame_or_window = tty->top_frame; | |
7019 | buf.arg = Qnil; | |
7020 | kbd_buffer_store_event (&buf); | |
7021 | from = i + 1; | |
7022 | } | |
7023 | return nread; | |
7024 | } | |
7025 | ||
284f4730 JB |
7026 | for (i = 0; i < nread; i++) |
7027 | { | |
057a9ab4 KL |
7028 | struct input_event buf; |
7029 | EVENT_INIT (buf); | |
7030 | buf.kind = ASCII_KEYSTROKE_EVENT; | |
7031 | buf.modifiers = 0; | |
8f1ce423 | 7032 | if (tty->meta_key == 1 && (cbuf[i] & 0x80)) |
057a9ab4 | 7033 | buf.modifiers = meta_modifier; |
8f1ce423 KL |
7034 | if (tty->meta_key != 2) |
7035 | cbuf[i] &= ~0x80; | |
033b73e2 | 7036 | |
057a9ab4 | 7037 | buf.code = cbuf[i]; |
ac3d2625 KL |
7038 | /* Set the frame corresponding to the active tty. Note that the |
7039 | value of selected_frame is not reliable here, redisplay tends | |
7040 | to temporarily change it. */ | |
057a9ab4 KL |
7041 | buf.frame_or_window = tty->top_frame; |
7042 | buf.arg = Qnil; | |
033b73e2 | 7043 | |
057a9ab4 KL |
7044 | kbd_buffer_store_event (&buf); |
7045 | /* Don't look at input that follows a C-g too closely. | |
7046 | This reduces lossage due to autorepeat on C-g. */ | |
7047 | if (buf.kind == ASCII_KEYSTROKE_EVENT | |
7048 | && buf.code == quit_char) | |
7049 | break; | |
284f4730 JB |
7050 | } |
7051 | ||
7052 | return nread; | |
7053 | } | |
284f4730 | 7054 | \f |
6b61353c | 7055 | void |
d3da34e0 | 7056 | handle_async_input (void) |
6b61353c | 7057 | { |
6b61353c | 7058 | interrupt_input_pending = 0; |
07a1e794 | 7059 | #ifdef SYNC_INPUT |
ceb18827 | 7060 | pending_signals = pending_atimers; |
07a1e794 | 7061 | #endif |
c96169a0 AR |
7062 | /* Tell ns_read_socket() it is being called asynchronously so it can avoid |
7063 | doing anything dangerous. */ | |
7064 | #ifdef HAVE_NS | |
7065 | ++handling_signal; | |
7066 | #endif | |
6b61353c KH |
7067 | while (1) |
7068 | { | |
7069 | int nread; | |
7070 | nread = read_avail_input (1); | |
7071 | /* -1 means it's not ok to read the input now. | |
7072 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
7073 | 0 means there was no keyboard input available. */ | |
7074 | if (nread <= 0) | |
7075 | break; | |
6b61353c | 7076 | } |
c96169a0 AR |
7077 | #ifdef HAVE_NS |
7078 | --handling_signal; | |
7079 | #endif | |
6b61353c KH |
7080 | } |
7081 | ||
ceb18827 | 7082 | void |
d3da34e0 | 7083 | process_pending_signals (void) |
ceb18827 CY |
7084 | { |
7085 | if (interrupt_input_pending) | |
7086 | handle_async_input (); | |
7087 | do_pending_atimers (); | |
7088 | } | |
7089 | ||
284f4730 JB |
7090 | #ifdef SIGIO /* for entire page */ |
7091 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
7092 | ||
4216b545 | 7093 | static SIGTYPE |
d3da34e0 | 7094 | input_available_signal (int signo) |
284f4730 JB |
7095 | { |
7096 | /* Must preserve main program's value of errno. */ | |
7097 | int old_errno = errno; | |
c2623ee7 YM |
7098 | SIGNAL_THREAD_CHECK (signo); |
7099 | ||
6b61353c KH |
7100 | #ifdef SYNC_INPUT |
7101 | interrupt_input_pending = 1; | |
ceb18827 | 7102 | pending_signals = 1; |
bd55c35c | 7103 | #endif |
a25f766a | 7104 | |
bd55c35c JD |
7105 | if (input_available_clear_time) |
7106 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
d7031edc | 7107 | |
bd55c35c | 7108 | #ifndef SYNC_INPUT |
6b61353c | 7109 | handle_async_input (); |
284f4730 | 7110 | #endif |
284f4730 | 7111 | |
284f4730 JB |
7112 | errno = old_errno; |
7113 | } | |
7114 | #endif /* SIGIO */ | |
ad163903 JB |
7115 | |
7116 | /* Send ourselves a SIGIO. | |
7117 | ||
7118 | This function exists so that the UNBLOCK_INPUT macro in | |
7119 | blockinput.h can have some way to take care of input we put off | |
7120 | dealing with, without assuming that every file which uses | |
7121 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
7122 | void | |
d3da34e0 | 7123 | reinvoke_input_signal (void) |
ad163903 | 7124 | { |
df0f2ba1 | 7125 | #ifdef SIGIO |
6b61353c | 7126 | handle_async_input (); |
ad163903 JB |
7127 | #endif |
7128 | } | |
7129 | ||
7130 | ||
284f4730 | 7131 | \f |
23479b40 YM |
7132 | /* User signal events. */ |
7133 | ||
7134 | struct user_signal_info | |
7135 | { | |
7136 | /* Signal number. */ | |
7137 | int sig; | |
7138 | ||
7139 | /* Name of the signal. */ | |
7140 | char *name; | |
7141 | ||
7142 | /* Number of pending signals. */ | |
7143 | int npending; | |
7144 | ||
7145 | struct user_signal_info *next; | |
7146 | }; | |
7147 | ||
7148 | /* List of user signals. */ | |
7149 | static struct user_signal_info *user_signals = NULL; | |
7150 | ||
7151 | void | |
d3da34e0 | 7152 | add_user_signal (int sig, const char *name) |
23479b40 YM |
7153 | { |
7154 | struct user_signal_info *p; | |
7155 | ||
7156 | for (p = user_signals; p; p = p->next) | |
7157 | if (p->sig == sig) | |
7158 | /* Already added. */ | |
7159 | return; | |
7160 | ||
7161 | p = xmalloc (sizeof (struct user_signal_info)); | |
7162 | p->sig = sig; | |
7163 | p->name = xstrdup (name); | |
7164 | p->npending = 0; | |
7165 | p->next = user_signals; | |
7166 | user_signals = p; | |
7167 | ||
7168 | signal (sig, handle_user_signal); | |
7169 | } | |
7170 | ||
7171 | static SIGTYPE | |
d3da34e0 | 7172 | handle_user_signal (int sig) |
23479b40 YM |
7173 | { |
7174 | int old_errno = errno; | |
7175 | struct user_signal_info *p; | |
7176 | ||
23479b40 YM |
7177 | SIGNAL_THREAD_CHECK (sig); |
7178 | ||
7179 | for (p = user_signals; p; p = p->next) | |
7180 | if (p->sig == sig) | |
7181 | { | |
7182 | p->npending++; | |
7183 | #ifdef SIGIO | |
7184 | if (interrupt_input) | |
7185 | kill (getpid (), SIGIO); | |
7186 | else | |
7187 | #endif | |
7188 | { | |
7189 | /* Tell wait_reading_process_output that it needs to wake | |
7190 | up and look around. */ | |
7191 | if (input_available_clear_time) | |
7192 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
7193 | } | |
7194 | break; | |
7195 | } | |
7196 | ||
7197 | errno = old_errno; | |
7198 | } | |
7199 | ||
7200 | static char * | |
d3da34e0 | 7201 | find_user_signal_name (int sig) |
23479b40 YM |
7202 | { |
7203 | struct user_signal_info *p; | |
7204 | ||
7205 | for (p = user_signals; p; p = p->next) | |
7206 | if (p->sig == sig) | |
7207 | return p->name; | |
7208 | ||
7209 | return NULL; | |
7210 | } | |
7211 | ||
7212 | static int | |
d3da34e0 | 7213 | store_user_signal_events (void) |
23479b40 YM |
7214 | { |
7215 | struct user_signal_info *p; | |
7216 | struct input_event buf; | |
7217 | int nstored = 0; | |
7218 | ||
7219 | for (p = user_signals; p; p = p->next) | |
7220 | if (p->npending > 0) | |
7221 | { | |
7222 | SIGMASKTYPE mask; | |
7223 | ||
7224 | if (nstored == 0) | |
7225 | { | |
72af86bd | 7226 | memset (&buf, 0, sizeof buf); |
23479b40 YM |
7227 | buf.kind = USER_SIGNAL_EVENT; |
7228 | buf.frame_or_window = selected_frame; | |
7229 | } | |
7230 | nstored += p->npending; | |
7231 | ||
7232 | mask = sigblock (sigmask (p->sig)); | |
7233 | do | |
7234 | { | |
23479b40 YM |
7235 | buf.code = p->sig; |
7236 | kbd_buffer_store_event (&buf); | |
7237 | p->npending--; | |
7238 | } | |
7239 | while (p->npending > 0); | |
7240 | sigsetmask (mask); | |
7241 | } | |
7242 | ||
7243 | return nstored; | |
7244 | } | |
7245 | ||
7246 | \f | |
f57e2426 | 7247 | static void menu_bar_item (Lisp_Object, Lisp_Object, Lisp_Object, void*); |
318ab85c | 7248 | static Lisp_Object menu_bar_one_keymap_changed_items; |
b7c49376 RS |
7249 | |
7250 | /* These variables hold the vector under construction within | |
7251 | menu_bar_items and its subroutines, and the current index | |
7252 | for storing into that vector. */ | |
7253 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 7254 | static int menu_bar_items_index; |
5ec75a55 | 7255 | |
4039c786 CY |
7256 | |
7257 | static const char* separator_names[] = { | |
7258 | "space", | |
7259 | "no-line", | |
7260 | "single-line", | |
7261 | "double-line", | |
7262 | "single-dashed-line", | |
7263 | "double-dashed-line", | |
7264 | "shadow-etched-in", | |
7265 | "shadow-etched-out", | |
7266 | "shadow-etched-in-dash", | |
7267 | "shadow-etched-out-dash", | |
7268 | "shadow-double-etched-in", | |
7269 | "shadow-double-etched-out", | |
7270 | "shadow-double-etched-in-dash", | |
7271 | "shadow-double-etched-out-dash", | |
7272 | 0, | |
7273 | }; | |
7274 | ||
7275 | /* Return non-zero if LABEL specifies a separator. */ | |
7276 | ||
7277 | int | |
7278 | menu_separator_name_p (const char *label) | |
7279 | { | |
7280 | if (!label) | |
7281 | return 0; | |
7282 | else if (strlen (label) > 3 | |
7283 | && strncmp (label, "--", 2) == 0 | |
7284 | && label[2] != '-') | |
7285 | { | |
7286 | int i; | |
7287 | label += 2; | |
7288 | for (i = 0; separator_names[i]; ++i) | |
7289 | if (strcmp (label, separator_names[i]) == 0) | |
7290 | return 1; | |
7291 | } | |
7292 | else | |
7293 | { | |
7294 | /* It's a separator if it contains only dashes. */ | |
7295 | while (*label == '-') | |
7296 | ++label; | |
7297 | return (*label == 0); | |
7298 | } | |
7299 | ||
7300 | return 0; | |
7301 | } | |
7302 | ||
7303 | ||
b7c49376 RS |
7304 | /* Return a vector of menu items for a menu bar, appropriate |
7305 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 7306 | KEY STRING MAPLIST. |
b7c49376 RS |
7307 | |
7308 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
7309 | |
7310 | Lisp_Object | |
d3da34e0 | 7311 | menu_bar_items (Lisp_Object old) |
5ec75a55 RS |
7312 | { |
7313 | /* The number of keymaps we're scanning right now, and the number of | |
7314 | keymaps we have allocated space for. */ | |
7315 | int nmaps; | |
7316 | ||
7317 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
7318 | in the current keymaps, or nil where it is not a prefix. */ | |
7319 | Lisp_Object *maps; | |
7320 | ||
aebfea68 | 7321 | Lisp_Object def, tail; |
5ec75a55 RS |
7322 | |
7323 | Lisp_Object result; | |
7324 | ||
7325 | int mapno; | |
47d319aa | 7326 | Lisp_Object oquit; |
5ec75a55 | 7327 | |
b7c49376 RS |
7328 | int i; |
7329 | ||
db60d856 JB |
7330 | /* In order to build the menus, we need to call the keymap |
7331 | accessors. They all call QUIT. But this function is called | |
7332 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
7333 | quitting while building the menus. |
7334 | We do this instead of specbind because (1) errors will clear it anyway | |
7335 | and (2) this avoids risk of specpdl overflow. */ | |
7336 | oquit = Vinhibit_quit; | |
df0f2ba1 | 7337 | Vinhibit_quit = Qt; |
db60d856 | 7338 | |
b7c49376 RS |
7339 | if (!NILP (old)) |
7340 | menu_bar_items_vector = old; | |
7341 | else | |
7342 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
7343 | menu_bar_items_index = 0; | |
7344 | ||
5ec75a55 RS |
7345 | /* Build our list of keymaps. |
7346 | If we recognize a function key and replace its escape sequence in | |
7347 | keybuf with its symbol, or if the sequence starts with a mouse | |
7348 | click and we need to switch buffers, we jump back here to rebuild | |
7349 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7350 | { |
5ec75a55 RS |
7351 | Lisp_Object *tmaps; |
7352 | ||
217258d5 | 7353 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 7354 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 7355 | { |
217258d5 KH |
7356 | /* Yes, use them (if non-nil) as well as the global map. */ |
7357 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7358 | nmaps = 0; | |
7359 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7360 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7361 | if (!NILP (Voverriding_local_map)) | |
7362 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
7363 | } |
7364 | else | |
7365 | { | |
fd646341 KS |
7366 | /* No, so use major and minor mode keymaps and keymap property. |
7367 | Note that menu-bar bindings in the local-map and keymap | |
7368 | properties may not work reliable, as they are only | |
7369 | recognized when the menu-bar (or mode-line) is updated, | |
7370 | which does not normally happen after every command. */ | |
7371 | Lisp_Object tem; | |
7372 | int nminor; | |
7373 | nminor = current_minor_maps (NULL, &tmaps); | |
7374 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7375 | nmaps = 0; | |
7376 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7377 | maps[nmaps++] = tem; | |
72af86bd | 7378 | memcpy (maps + nmaps, tmaps, nminor * sizeof (maps[0])); |
fd646341 KS |
7379 | nmaps += nminor; |
7380 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
9dd3131c | 7381 | } |
217258d5 | 7382 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
7383 | } |
7384 | ||
7385 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
7386 | ||
7387 | result = Qnil; | |
7388 | ||
e58aa385 | 7389 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
25126faa GM |
7390 | if (!NILP (maps[mapno])) |
7391 | { | |
341a09cf SM |
7392 | def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1), |
7393 | 0, 1); | |
02067692 | 7394 | if (CONSP (def)) |
4216b545 SM |
7395 | { |
7396 | menu_bar_one_keymap_changed_items = Qnil; | |
7397 | map_keymap (def, menu_bar_item, Qnil, NULL, 1); | |
7398 | } | |
25126faa | 7399 | } |
5ec75a55 | 7400 | |
b7c49376 RS |
7401 | /* Move to the end those items that should be at the end. */ |
7402 | ||
7539e11f | 7403 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail)) |
9f9c0e27 | 7404 | { |
b7c49376 RS |
7405 | int i; |
7406 | int end = menu_bar_items_index; | |
7407 | ||
35b3402f | 7408 | for (i = 0; i < end; i += 4) |
7539e11f | 7409 | if (EQ (XCAR (tail), XVECTOR (menu_bar_items_vector)->contents[i])) |
b7c49376 | 7410 | { |
35b3402f | 7411 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
7412 | /* Move the item at index I to the end, |
7413 | shifting all the others forward. */ | |
7414 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
7415 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
7416 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
7417 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
7418 | if (end > i + 4) | |
72af86bd AS |
7419 | memmove (&XVECTOR (menu_bar_items_vector)->contents[i], |
7420 | &XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
7421 | (end - i - 4) * sizeof (Lisp_Object)); | |
35b3402f RS |
7422 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; |
7423 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
7424 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
7425 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 7426 | break; |
b7c49376 RS |
7427 | } |
7428 | } | |
9f9c0e27 | 7429 | |
0c9071cd | 7430 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 7431 | i = menu_bar_items_index; |
35b3402f | 7432 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7433 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7434 | /* Add this item. */ |
7435 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7436 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
7437 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 7438 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 7439 | menu_bar_items_index = i; |
a73c5e29 | 7440 | |
47d319aa | 7441 | Vinhibit_quit = oquit; |
b7c49376 | 7442 | return menu_bar_items_vector; |
5ec75a55 RS |
7443 | } |
7444 | \f | |
f5e09c8b RS |
7445 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
7446 | If there's already an item for KEY, add this DEF to it. */ | |
7447 | ||
e8886a1d RS |
7448 | Lisp_Object item_properties; |
7449 | ||
b7c49376 | 7450 | static void |
d3da34e0 | 7451 | menu_bar_item (Lisp_Object key, Lisp_Object item, Lisp_Object dummy1, void *dummy2) |
5ec75a55 | 7452 | { |
e8886a1d | 7453 | struct gcpro gcpro1; |
b7c49376 | 7454 | int i; |
759860a6 | 7455 | Lisp_Object tem; |
5ec75a55 | 7456 | |
e8886a1d | 7457 | if (EQ (item, Qundefined)) |
e58aa385 | 7458 | { |
f5e09c8b | 7459 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 7460 | discard any previously made menu bar item. */ |
b7c49376 | 7461 | |
35b3402f | 7462 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7463 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7464 | { | |
35b3402f | 7465 | if (menu_bar_items_index > i + 4) |
72af86bd AS |
7466 | memmove (&XVECTOR (menu_bar_items_vector)->contents[i], |
7467 | &XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
7468 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); | |
35b3402f | 7469 | menu_bar_items_index -= 4; |
b7c49376 | 7470 | } |
e58aa385 RS |
7471 | } |
7472 | ||
759860a6 RS |
7473 | /* If this keymap has already contributed to this KEY, |
7474 | don't contribute to it a second time. */ | |
7475 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
9cd2ced7 | 7476 | if (!NILP (tem) || NILP (item)) |
759860a6 RS |
7477 | return; |
7478 | ||
7479 | menu_bar_one_keymap_changed_items | |
7480 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
7481 | ||
9cd2ced7 SM |
7482 | /* We add to menu_bar_one_keymap_changed_items before doing the |
7483 | parse_menu_item, so that if it turns out it wasn't a menu item, | |
7484 | it still correctly hides any further menu item. */ | |
7485 | GCPRO1 (key); | |
ef7417fd | 7486 | i = parse_menu_item (item, 1); |
9cd2ced7 SM |
7487 | UNGCPRO; |
7488 | if (!i) | |
7489 | return; | |
7490 | ||
e8886a1d RS |
7491 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
7492 | ||
f5e09c8b | 7493 | /* Find any existing item for this KEY. */ |
35b3402f | 7494 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
7495 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
7496 | break; | |
7497 | ||
f5e09c8b | 7498 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
7499 | if (i == menu_bar_items_index) |
7500 | { | |
7501 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 7502 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
6bf377e2 | 7503 | menu_bar_items_vector = larger_vector (menu_bar_items_vector, 2 * i, Qnil); |
b7c49376 RS |
7504 | /* Add this item. */ |
7505 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
7506 | XVECTOR (menu_bar_items_vector)->contents[i++] |
7507 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
7508 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 7509 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
7510 | menu_bar_items_index = i; |
7511 | } | |
e8886a1d | 7512 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
7513 | else |
7514 | { | |
7515 | Lisp_Object old; | |
7516 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
4216b545 SM |
7517 | /* If the new and the old items are not both keymaps, |
7518 | the lookup will only find `item'. */ | |
7519 | item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil); | |
7520 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = item; | |
f5e09c8b | 7521 | } |
5ec75a55 RS |
7522 | } |
7523 | \f | |
e8886a1d RS |
7524 | /* This is used as the handler when calling menu_item_eval_property. */ |
7525 | static Lisp_Object | |
d3da34e0 | 7526 | menu_item_eval_property_1 (Lisp_Object arg) |
e8886a1d RS |
7527 | { |
7528 | /* If we got a quit from within the menu computation, | |
7529 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
7539e11f | 7530 | if (CONSP (arg) && EQ (XCAR (arg), Qquit)) |
e8886a1d RS |
7531 | Fsignal (Qquit, Qnil); |
7532 | ||
7533 | return Qnil; | |
7534 | } | |
7535 | ||
c60ee5e7 | 7536 | /* Evaluate an expression and return the result (or nil if something |
e8886a1d | 7537 | went wrong). Used to evaluate dynamic parts of menu items. */ |
7ee32cda | 7538 | Lisp_Object |
d3da34e0 | 7539 | menu_item_eval_property (Lisp_Object sexpr) |
e8886a1d | 7540 | { |
aed13378 | 7541 | int count = SPECPDL_INDEX (); |
e8886a1d | 7542 | Lisp_Object val; |
44e553a3 | 7543 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
7544 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
7545 | menu_item_eval_property_1); | |
44e553a3 | 7546 | return unbind_to (count, val); |
e8886a1d RS |
7547 | } |
7548 | ||
7549 | /* This function parses a menu item and leaves the result in the | |
7550 | vector item_properties. | |
7551 | ITEM is a key binding, a possible menu item. | |
fd3613d7 | 7552 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 7553 | top level. |
fd3613d7 | 7554 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
7555 | parse_menu_item returns true if the item is a menu item and false |
7556 | otherwise. */ | |
7557 | ||
7558 | int | |
d3da34e0 | 7559 | parse_menu_item (Lisp_Object item, int inmenubar) |
e8886a1d | 7560 | { |
adc1d5c8 | 7561 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
7562 | Lisp_Object filter; |
7563 | Lisp_Object keyhint; | |
e8886a1d | 7564 | int i; |
74c1de23 | 7565 | |
07ba902e RS |
7566 | filter = Qnil; |
7567 | keyhint = Qnil; | |
7568 | ||
e8886a1d RS |
7569 | if (!CONSP (item)) |
7570 | return 0; | |
7571 | ||
e8886a1d RS |
7572 | /* Create item_properties vector if necessary. */ |
7573 | if (NILP (item_properties)) | |
7574 | item_properties | |
7575 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
7576 | ||
7577 | /* Initialize optional entries. */ | |
7578 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
b1ebcadb SM |
7579 | ASET (item_properties, i, Qnil); |
7580 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); | |
c60ee5e7 | 7581 | |
e8886a1d | 7582 | /* Save the item here to protect it from GC. */ |
b1ebcadb | 7583 | ASET (item_properties, ITEM_PROPERTY_ITEM, item); |
e8886a1d | 7584 | |
7539e11f | 7585 | item_string = XCAR (item); |
e8886a1d RS |
7586 | |
7587 | start = item; | |
7539e11f | 7588 | item = XCDR (item); |
e8886a1d RS |
7589 | if (STRINGP (item_string)) |
7590 | { | |
7591 | /* Old format menu item. */ | |
b1ebcadb | 7592 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d RS |
7593 | |
7594 | /* Maybe help string. */ | |
7539e11f | 7595 | if (CONSP (item) && STRINGP (XCAR (item))) |
e8886a1d | 7596 | { |
b1ebcadb | 7597 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7598 | start = item; |
7539e11f | 7599 | item = XCDR (item); |
e8886a1d | 7600 | } |
c60ee5e7 | 7601 | |
50d4ba39 | 7602 | /* Maybe an obsolete key binding cache. */ |
7539e11f KR |
7603 | if (CONSP (item) && CONSP (XCAR (item)) |
7604 | && (NILP (XCAR (XCAR (item))) | |
7605 | || VECTORP (XCAR (XCAR (item))))) | |
50d4ba39 | 7606 | item = XCDR (item); |
c60ee5e7 | 7607 | |
e8886a1d | 7608 | /* This is the real definition--the function to run. */ |
b1ebcadb | 7609 | ASET (item_properties, ITEM_PROPERTY_DEF, item); |
e8886a1d RS |
7610 | |
7611 | /* Get enable property, if any. */ | |
7612 | if (SYMBOLP (item)) | |
7613 | { | |
7614 | tem = Fget (item, Qmenu_enable); | |
9d56e0da | 7615 | if (!NILP (Venable_disabled_menus_and_buttons)) |
b1ebcadb | 7616 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7617 | else if (!NILP (tem)) |
b1ebcadb | 7618 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7619 | } |
7620 | } | |
7621 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
7622 | { | |
7623 | /* New format menu item. */ | |
b1ebcadb | 7624 | ASET (item_properties, ITEM_PROPERTY_NAME, XCAR (item)); |
7539e11f | 7625 | start = XCDR (item); |
e8886a1d RS |
7626 | if (CONSP (start)) |
7627 | { | |
7628 | /* We have a real binding. */ | |
b1ebcadb | 7629 | ASET (item_properties, ITEM_PROPERTY_DEF, XCAR (start)); |
e8886a1d | 7630 | |
7539e11f | 7631 | item = XCDR (start); |
50d4ba39 | 7632 | /* Is there an obsolete cache list with key equivalences. */ |
7539e11f | 7633 | if (CONSP (item) && CONSP (XCAR (item))) |
50d4ba39 | 7634 | item = XCDR (item); |
e8886a1d RS |
7635 | |
7636 | /* Parse properties. */ | |
7539e11f | 7637 | while (CONSP (item) && CONSP (XCDR (item))) |
e8886a1d | 7638 | { |
7539e11f KR |
7639 | tem = XCAR (item); |
7640 | item = XCDR (item); | |
e8886a1d RS |
7641 | |
7642 | if (EQ (tem, QCenable)) | |
9d56e0da EZ |
7643 | { |
7644 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
b1ebcadb | 7645 | ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt); |
9d56e0da | 7646 | else |
b1ebcadb | 7647 | ASET (item_properties, ITEM_PROPERTY_ENABLE, XCAR (item)); |
9d56e0da | 7648 | } |
ef7417fd | 7649 | else if (EQ (tem, QCvisible)) |
e8886a1d RS |
7650 | { |
7651 | /* If got a visible property and that evaluates to nil | |
7652 | then ignore this item. */ | |
7539e11f | 7653 | tem = menu_item_eval_property (XCAR (item)); |
e8886a1d | 7654 | if (NILP (tem)) |
adc1d5c8 | 7655 | return 0; |
e8886a1d RS |
7656 | } |
7657 | else if (EQ (tem, QChelp)) | |
b1ebcadb | 7658 | ASET (item_properties, ITEM_PROPERTY_HELP, XCAR (item)); |
e8886a1d | 7659 | else if (EQ (tem, QCfilter)) |
74c1de23 RS |
7660 | filter = item; |
7661 | else if (EQ (tem, QCkey_sequence)) | |
7662 | { | |
7539e11f | 7663 | tem = XCAR (item); |
50d4ba39 | 7664 | if (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem)) |
74c1de23 RS |
7665 | /* Be GC protected. Set keyhint to item instead of tem. */ |
7666 | keyhint = item; | |
7667 | } | |
7668 | else if (EQ (tem, QCkeys)) | |
7669 | { | |
7539e11f | 7670 | tem = XCAR (item); |
50d4ba39 | 7671 | if (CONSP (tem) || STRINGP (tem)) |
b1ebcadb | 7672 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem); |
74c1de23 | 7673 | } |
7539e11f | 7674 | else if (EQ (tem, QCbutton) && CONSP (XCAR (item))) |
e8886a1d | 7675 | { |
74c1de23 | 7676 | Lisp_Object type; |
7539e11f KR |
7677 | tem = XCAR (item); |
7678 | type = XCAR (tem); | |
e8886a1d RS |
7679 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) |
7680 | { | |
b1ebcadb SM |
7681 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
7682 | XCDR (tem)); | |
7683 | ASET (item_properties, ITEM_PROPERTY_TYPE, type); | |
e8886a1d RS |
7684 | } |
7685 | } | |
7539e11f | 7686 | item = XCDR (item); |
e8886a1d RS |
7687 | } |
7688 | } | |
7689 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 7690 | return 0; |
e8886a1d RS |
7691 | } |
7692 | else | |
adc1d5c8 | 7693 | return 0; /* not a menu item */ |
e8886a1d RS |
7694 | |
7695 | /* If item string is not a string, evaluate it to get string. | |
7696 | If we don't get a string, skip this item. */ | |
3626fb1a | 7697 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
ef7417fd | 7698 | if (!(STRINGP (item_string))) |
e8886a1d RS |
7699 | { |
7700 | item_string = menu_item_eval_property (item_string); | |
7701 | if (!STRINGP (item_string)) | |
adc1d5c8 | 7702 | return 0; |
b1ebcadb | 7703 | ASET (item_properties, ITEM_PROPERTY_NAME, item_string); |
e8886a1d | 7704 | } |
c60ee5e7 | 7705 | |
e8886a1d | 7706 | /* If got a filter apply it on definition. */ |
3626fb1a | 7707 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
e8886a1d RS |
7708 | if (!NILP (filter)) |
7709 | { | |
7539e11f | 7710 | def = menu_item_eval_property (list2 (XCAR (filter), |
c5c5a6f8 RS |
7711 | list2 (Qquote, def))); |
7712 | ||
b1ebcadb | 7713 | ASET (item_properties, ITEM_PROPERTY_DEF, def); |
e8886a1d RS |
7714 | } |
7715 | ||
e8886a1d | 7716 | /* Enable or disable selection of item. */ |
3626fb1a | 7717 | tem = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
e8886a1d RS |
7718 | if (!EQ (tem, Qt)) |
7719 | { | |
ef7417fd | 7720 | tem = menu_item_eval_property (tem); |
e8886a1d | 7721 | if (inmenubar && NILP (tem)) |
adc1d5c8 | 7722 | return 0; /* Ignore disabled items in menu bar. */ |
b1ebcadb | 7723 | ASET (item_properties, ITEM_PROPERTY_ENABLE, tem); |
e8886a1d RS |
7724 | } |
7725 | ||
7189cad8 SM |
7726 | /* If we got no definition, this item is just unselectable text which |
7727 | is OK in a submenu but not in the menubar. */ | |
7728 | if (NILP (def)) | |
7729 | return (inmenubar ? 0 : 1); | |
c60ee5e7 | 7730 | |
e8886a1d | 7731 | /* See if this is a separate pane or a submenu. */ |
3626fb1a | 7732 | def = AREF (item_properties, ITEM_PROPERTY_DEF); |
02067692 | 7733 | tem = get_keymap (def, 0, 1); |
9ac425d1 | 7734 | /* For a subkeymap, just record its details and exit. */ |
02067692 | 7735 | if (CONSP (tem)) |
e8886a1d | 7736 | { |
b1ebcadb SM |
7737 | ASET (item_properties, ITEM_PROPERTY_MAP, tem); |
7738 | ASET (item_properties, ITEM_PROPERTY_DEF, tem); | |
e8886a1d RS |
7739 | return 1; |
7740 | } | |
c60ee5e7 | 7741 | |
9ac425d1 RS |
7742 | /* At the top level in the menu bar, do likewise for commands also. |
7743 | The menu bar does not display equivalent key bindings anyway. | |
7744 | ITEM_PROPERTY_DEF is already set up properly. */ | |
7745 | if (inmenubar > 0) | |
7746 | return 1; | |
e8886a1d | 7747 | |
424d6179 SM |
7748 | { /* This is a command. See if there is an equivalent key binding. */ |
7749 | Lisp_Object keyeq = AREF (item_properties, ITEM_PROPERTY_KEYEQ); | |
74c1de23 | 7750 | |
424d6179 SM |
7751 | /* The previous code preferred :key-sequence to :keys, so we |
7752 | preserve this behavior. */ | |
7753 | if (STRINGP (keyeq) && !CONSP (keyhint)) | |
71fe378d | 7754 | keyeq = concat2 (build_string (" "), Fsubstitute_command_keys (keyeq)); |
424d6179 SM |
7755 | else |
7756 | { | |
7757 | Lisp_Object prefix = keyeq; | |
7758 | Lisp_Object keys = Qnil; | |
7759 | ||
7760 | if (CONSP (prefix)) | |
7761 | { | |
7762 | def = XCAR (prefix); | |
7763 | prefix = XCDR (prefix); | |
7764 | } | |
7765 | else | |
7766 | def = AREF (item_properties, ITEM_PROPERTY_DEF); | |
7767 | ||
7768 | if (CONSP (keyhint) && !NILP (XCAR (keyhint))) | |
7769 | { | |
7770 | keys = XCAR (keyhint); | |
7771 | tem = Fkey_binding (keys, Qnil, Qnil, Qnil); | |
7772 | ||
7773 | /* We have a suggested key. Is it bound to the command? */ | |
7774 | if (NILP (tem) | |
7775 | || (!EQ (tem, def) | |
7776 | /* If the command is an alias for another | |
7777 | (such as lmenu.el set it up), check if the | |
7778 | original command matches the cached command. */ | |
7779 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function)))) | |
7780 | keys = Qnil; | |
7781 | } | |
b25399ac | 7782 | |
424d6179 SM |
7783 | if (NILP (keys)) |
7784 | keys = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qnil); | |
b25399ac | 7785 | |
424d6179 SM |
7786 | if (!NILP (keys)) |
7787 | { | |
7788 | tem = Fkey_description (keys, Qnil); | |
7789 | if (CONSP (prefix)) | |
7790 | { | |
7791 | if (STRINGP (XCAR (prefix))) | |
7792 | tem = concat2 (XCAR (prefix), tem); | |
7793 | if (STRINGP (XCDR (prefix))) | |
7794 | tem = concat2 (tem, XCDR (prefix)); | |
7795 | } | |
7796 | keyeq = concat2 (build_string (" "), tem); | |
7797 | /* keyeq = concat3(build_string(" ("),tem,build_string(")")); */ | |
7798 | } | |
7799 | else | |
7800 | keyeq = Qnil; | |
7801 | } | |
e8886a1d | 7802 | |
424d6179 SM |
7803 | /* If we have an equivalent key binding, use that. */ |
7804 | ASET (item_properties, ITEM_PROPERTY_KEYEQ, keyeq); | |
b25399ac | 7805 | } |
adc1d5c8 RS |
7806 | |
7807 | /* Include this when menu help is implemented. | |
7808 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
7809 | if (!(NILP (tem) || STRINGP (tem))) | |
7810 | { | |
7811 | tem = menu_item_eval_property (tem); | |
7812 | if (!STRINGP (tem)) | |
7813 | tem = Qnil; | |
7814 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
7815 | } | |
e8886a1d RS |
7816 | */ |
7817 | ||
c60ee5e7 | 7818 | /* Handle radio buttons or toggle boxes. */ |
3626fb1a | 7819 | tem = AREF (item_properties, ITEM_PROPERTY_SELECTED); |
e8886a1d | 7820 | if (!NILP (tem)) |
b1ebcadb SM |
7821 | ASET (item_properties, ITEM_PROPERTY_SELECTED, |
7822 | menu_item_eval_property (tem)); | |
e8886a1d | 7823 | |
e8886a1d RS |
7824 | return 1; |
7825 | } | |
7ee32cda GM |
7826 | |
7827 | ||
7828 | \f | |
7829 | /*********************************************************************** | |
7830 | Tool-bars | |
7831 | ***********************************************************************/ | |
7832 | ||
9ea173e8 | 7833 | /* A vector holding tool bar items while they are parsed in function |
27fd22dc | 7834 | tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements |
9ea173e8 | 7835 | in the vector. */ |
7ee32cda | 7836 | |
9ea173e8 | 7837 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 7838 | |
9ea173e8 GM |
7839 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
7840 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 7841 | |
9ea173e8 | 7842 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 7843 | |
9ea173e8 | 7844 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 7845 | |
9ea173e8 | 7846 | static int ntool_bar_items; |
7ee32cda | 7847 | |
04bab72c | 7848 | /* The symbols `:image' and `:rtl'. */ |
7ee32cda | 7849 | |
7ee32cda | 7850 | Lisp_Object QCimage; |
cf0590c4 | 7851 | Lisp_Object Qrtl; |
7ee32cda GM |
7852 | |
7853 | /* Function prototypes. */ | |
7854 | ||
f57e2426 J |
7855 | static void init_tool_bar_items (Lisp_Object); |
7856 | static void process_tool_bar_item (Lisp_Object, Lisp_Object, Lisp_Object, void*); | |
7857 | static int parse_tool_bar_item (Lisp_Object, Lisp_Object); | |
7858 | static void append_tool_bar_item (void); | |
7ee32cda GM |
7859 | |
7860 | ||
9ea173e8 | 7861 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 7862 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 7863 | tool bar items found. */ |
7ee32cda GM |
7864 | |
7865 | Lisp_Object | |
d3da34e0 | 7866 | tool_bar_items (Lisp_Object reuse, int *nitems) |
7ee32cda GM |
7867 | { |
7868 | Lisp_Object *maps; | |
7869 | int nmaps, i; | |
7870 | Lisp_Object oquit; | |
7871 | Lisp_Object *tmaps; | |
7ee32cda GM |
7872 | |
7873 | *nitems = 0; | |
7874 | ||
7875 | /* In order to build the menus, we need to call the keymap | |
7876 | accessors. They all call QUIT. But this function is called | |
7877 | during redisplay, during which a quit is fatal. So inhibit | |
7878 | quitting while building the menus. We do this instead of | |
7879 | specbind because (1) errors will clear it anyway and (2) this | |
7880 | avoids risk of specpdl overflow. */ | |
7881 | oquit = Vinhibit_quit; | |
7882 | Vinhibit_quit = Qt; | |
c60ee5e7 | 7883 | |
9ea173e8 GM |
7884 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
7885 | init_tool_bar_items (reuse); | |
7ee32cda GM |
7886 | |
7887 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
7888 | to process. */ | |
c60ee5e7 | 7889 | |
7ee32cda GM |
7890 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
7891 | if (!NILP (Voverriding_local_map_menu_flag)) | |
7892 | { | |
7893 | /* Yes, use them (if non-nil) as well as the global map. */ | |
7894 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
7895 | nmaps = 0; | |
7896 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7897 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7898 | if (!NILP (Voverriding_local_map)) | |
7899 | maps[nmaps++] = Voverriding_local_map; | |
7900 | } | |
7901 | else | |
7902 | { | |
fd646341 KS |
7903 | /* No, so use major and minor mode keymaps and keymap property. |
7904 | Note that tool-bar bindings in the local-map and keymap | |
7905 | properties may not work reliable, as they are only | |
7906 | recognized when the tool-bar (or mode-line) is updated, | |
7907 | which does not normally happen after every command. */ | |
7908 | Lisp_Object tem; | |
7909 | int nminor; | |
7910 | nminor = current_minor_maps (NULL, &tmaps); | |
7911 | maps = (Lisp_Object *) alloca ((nminor + 3) * sizeof (maps[0])); | |
7912 | nmaps = 0; | |
7913 | if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem)) | |
7914 | maps[nmaps++] = tem; | |
72af86bd | 7915 | memcpy (maps + nmaps, tmaps, nminor * sizeof (maps[0])); |
fd646341 KS |
7916 | nmaps += nminor; |
7917 | maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map); | |
7ee32cda GM |
7918 | } |
7919 | ||
7920 | /* Add global keymap at the end. */ | |
7921 | maps[nmaps++] = current_global_map; | |
7922 | ||
7923 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 7924 | key `tool-bar'. */ |
7ee32cda GM |
7925 | for (i = nmaps - 1; i >= 0; --i) |
7926 | if (!NILP (maps[i])) | |
7927 | { | |
7928 | Lisp_Object keymap; | |
db785038 | 7929 | |
341a09cf | 7930 | keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1); |
02067692 | 7931 | if (CONSP (keymap)) |
293bd733 | 7932 | map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1); |
7ee32cda GM |
7933 | } |
7934 | ||
7935 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
7936 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
7937 | return tool_bar_items_vector; | |
7ee32cda GM |
7938 | } |
7939 | ||
7940 | ||
7941 | /* Process the definition of KEY which is DEF. */ | |
7942 | ||
7943 | static void | |
d3da34e0 | 7944 | process_tool_bar_item (Lisp_Object key, Lisp_Object def, Lisp_Object data, void *args) |
7ee32cda GM |
7945 | { |
7946 | int i; | |
7ee32cda GM |
7947 | struct gcpro gcpro1, gcpro2; |
7948 | ||
9ea173e8 | 7949 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
7950 | eval. */ |
7951 | GCPRO2 (key, def); | |
7952 | ||
7953 | if (EQ (def, Qundefined)) | |
7954 | { | |
7955 | /* If a map has an explicit `undefined' as definition, | |
7956 | discard any previously made item. */ | |
9ea173e8 | 7957 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 7958 | { |
9ea173e8 | 7959 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
c60ee5e7 | 7960 | |
9ea173e8 | 7961 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 7962 | { |
9ea173e8 | 7963 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
72af86bd AS |
7964 | memmove (v, v + TOOL_BAR_ITEM_NSLOTS, |
7965 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7966 | * sizeof (Lisp_Object))); | |
9ea173e8 | 7967 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
7968 | break; |
7969 | } | |
7970 | } | |
7971 | } | |
9ea173e8 GM |
7972 | else if (parse_tool_bar_item (key, def)) |
7973 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 7974 | more than one definition for the same key. */ |
9ea173e8 | 7975 | append_tool_bar_item (); |
7ee32cda GM |
7976 | |
7977 | UNGCPRO; | |
7978 | } | |
7979 | ||
7980 | ||
9ea173e8 GM |
7981 | /* Parse a tool bar item specification ITEM for key KEY and return the |
7982 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
7983 | invalid. |
7984 | ||
7985 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
c60ee5e7 | 7986 | |
7ee32cda GM |
7987 | CAPTION is the caption of the item, If it's not a string, it is |
7988 | evaluated to get a string. | |
c60ee5e7 | 7989 | |
9ea173e8 | 7990 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
7991 | as binding are currently ignored. |
7992 | ||
7993 | The following properties are recognized: | |
7994 | ||
7995 | - `:enable FORM'. | |
c60ee5e7 | 7996 | |
9ea173e8 GM |
7997 | FORM is evaluated and specifies whether the tool bar item is |
7998 | enabled or disabled. | |
c60ee5e7 | 7999 | |
7ee32cda | 8000 | - `:visible FORM' |
c60ee5e7 | 8001 | |
9ea173e8 | 8002 | FORM is evaluated and specifies whether the tool bar item is visible. |
c60ee5e7 | 8003 | |
7ee32cda GM |
8004 | - `:filter FUNCTION' |
8005 | ||
8006 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
8007 | result is stored as the new binding. | |
c60ee5e7 | 8008 | |
7ee32cda GM |
8009 | - `:button (TYPE SELECTED)' |
8010 | ||
8011 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
8012 | and specifies whether the button is selected (pressed) or not. | |
c60ee5e7 | 8013 | |
7ee32cda GM |
8014 | - `:image IMAGES' |
8015 | ||
8016 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 8017 | image specifications. See enum tool_bar_item_images. |
c60ee5e7 | 8018 | |
7ee32cda | 8019 | - `:help HELP-STRING'. |
c60ee5e7 | 8020 | |
f904c0f9 JD |
8021 | Gives a help string to display for the tool bar item. |
8022 | ||
8023 | - `:label LABEL-STRING'. | |
8024 | ||
8025 | A text label to show with the tool bar button if labels are enabled. */ | |
7ee32cda GM |
8026 | |
8027 | static int | |
d3da34e0 | 8028 | parse_tool_bar_item (Lisp_Object key, Lisp_Object item) |
7ee32cda | 8029 | { |
9ea173e8 GM |
8030 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
8031 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
8032 | |
8033 | Lisp_Object filter = Qnil; | |
8034 | Lisp_Object caption; | |
f904c0f9 | 8035 | int i, have_label = 0; |
7ee32cda | 8036 | |
8c907a56 GM |
8037 | /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'. |
8038 | Rule out items that aren't lists, don't start with | |
8039 | `menu-item' or whose rest following `tool-bar-item' is not a | |
7ee32cda | 8040 | list. */ |
4039c786 CY |
8041 | if (!CONSP (item)) |
8042 | return 0; | |
8043 | ||
8044 | /* As an exception, allow old-style menu separators. */ | |
8045 | if (STRINGP (XCAR (item))) | |
8046 | item = Fcons (XCAR (item), Qnil); | |
8047 | else if (!EQ (XCAR (item), Qmenu_item) | |
8048 | || (item = XCDR (item), !CONSP (item))) | |
7ee32cda GM |
8049 | return 0; |
8050 | ||
9ea173e8 | 8051 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 8052 | defaults. */ |
9ea173e8 | 8053 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 8054 | { |
9ea173e8 | 8055 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
8056 | PROP (i) = Qnil; |
8057 | } | |
8058 | else | |
9ea173e8 GM |
8059 | tool_bar_item_properties |
8060 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
c60ee5e7 | 8061 | |
7ee32cda | 8062 | /* Set defaults. */ |
9ea173e8 GM |
8063 | PROP (TOOL_BAR_ITEM_KEY) = key; |
8064 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
c60ee5e7 | 8065 | |
7ee32cda GM |
8066 | /* Get the caption of the item. If the caption is not a string, |
8067 | evaluate it to get a string. If we don't get a string, skip this | |
8068 | item. */ | |
8069 | caption = XCAR (item); | |
8070 | if (!STRINGP (caption)) | |
8071 | { | |
8072 | caption = menu_item_eval_property (caption); | |
8073 | if (!STRINGP (caption)) | |
8074 | return 0; | |
8075 | } | |
9ea173e8 | 8076 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda | 8077 | |
4039c786 CY |
8078 | /* If the rest following the caption is not a list, the menu item is |
8079 | either a separator, or invalid. */ | |
7ee32cda GM |
8080 | item = XCDR (item); |
8081 | if (!CONSP (item)) | |
4039c786 CY |
8082 | { |
8083 | if (menu_separator_name_p (SDATA (caption))) | |
8084 | { | |
8085 | PROP (TOOL_BAR_ITEM_TYPE) = Qt; | |
94975270 CY |
8086 | #if !defined (USE_GTK) && !defined (HAVE_NS) |
8087 | /* If we use build_desired_tool_bar_string to render the | |
8088 | tool bar, the separator is rendered as an image. */ | |
8089 | PROP (TOOL_BAR_ITEM_IMAGES) | |
8090 | = menu_item_eval_property (Vtool_bar_separator_image_expression); | |
8091 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qnil; | |
8092 | PROP (TOOL_BAR_ITEM_SELECTED_P) = Qnil; | |
8093 | PROP (TOOL_BAR_ITEM_CAPTION) = Qnil; | |
8094 | #endif | |
4039c786 CY |
8095 | return 1; |
8096 | } | |
8097 | return 0; | |
8098 | } | |
7ee32cda GM |
8099 | |
8100 | /* Store the binding. */ | |
9ea173e8 | 8101 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
8102 | item = XCDR (item); |
8103 | ||
8c907a56 GM |
8104 | /* Ignore cached key binding, if any. */ |
8105 | if (CONSP (item) && CONSP (XCAR (item))) | |
8106 | item = XCDR (item); | |
8107 | ||
7ee32cda GM |
8108 | /* Process the rest of the properties. */ |
8109 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
8110 | { | |
8111 | Lisp_Object key, value; | |
8112 | ||
8113 | key = XCAR (item); | |
8114 | value = XCAR (XCDR (item)); | |
8115 | ||
8116 | if (EQ (key, QCenable)) | |
9d56e0da EZ |
8117 | { |
8118 | /* `:enable FORM'. */ | |
8119 | if (!NILP (Venable_disabled_menus_and_buttons)) | |
8120 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
8121 | else | |
8122 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; | |
8123 | } | |
7ee32cda GM |
8124 | else if (EQ (key, QCvisible)) |
8125 | { | |
8126 | /* `:visible FORM'. If got a visible property and that | |
8127 | evaluates to nil then ignore this item. */ | |
8128 | if (NILP (menu_item_eval_property (value))) | |
8129 | return 0; | |
8130 | } | |
4039c786 | 8131 | else if (EQ (key, QChelp)) |
0005830c J |
8132 | /* `:help HELP-STRING'. */ |
8133 | PROP (TOOL_BAR_ITEM_HELP) = value; | |
4039c786 | 8134 | else if (EQ (key, QCvert_only)) |
d2bd5189 JD |
8135 | /* `:vert-only t/nil'. */ |
8136 | PROP (TOOL_BAR_ITEM_VERT_ONLY) = value; | |
f904c0f9 JD |
8137 | else if (EQ (key, QClabel)) |
8138 | { | |
0005830c | 8139 | const char *bad_label = "!!?GARBLED ITEM?!!"; |
f904c0f9 | 8140 | /* `:label LABEL-STRING'. */ |
e24ad6dd | 8141 | PROP (TOOL_BAR_ITEM_LABEL) = STRINGP (value) |
0005830c J |
8142 | ? value |
8143 | : make_string (bad_label, strlen (bad_label)); | |
f904c0f9 JD |
8144 | have_label = 1; |
8145 | } | |
7ee32cda GM |
8146 | else if (EQ (key, QCfilter)) |
8147 | /* ':filter FORM'. */ | |
8148 | filter = value; | |
8149 | else if (EQ (key, QCbutton) && CONSP (value)) | |
8150 | { | |
8151 | /* `:button (TYPE . SELECTED)'. */ | |
8152 | Lisp_Object type, selected; | |
8153 | ||
8154 | type = XCAR (value); | |
8155 | selected = XCDR (value); | |
8156 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
8157 | { | |
9ea173e8 GM |
8158 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
8159 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
8160 | } |
8161 | } | |
8162 | else if (EQ (key, QCimage) | |
8163 | && (CONSP (value) | |
8164 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
8165 | /* Value is either a single image specification or a vector | |
27fd22dc | 8166 | of 4 such specifications for the different button states. */ |
9ea173e8 | 8167 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
cf0590c4 JD |
8168 | else if (EQ (key, Qrtl)) |
8169 | /* ':rtl STRING' */ | |
8170 | PROP (TOOL_BAR_ITEM_RTL_IMAGE) = value; | |
7ee32cda GM |
8171 | } |
8172 | ||
f904c0f9 JD |
8173 | |
8174 | if (!have_label) | |
8175 | { | |
8176 | /* Try to make one from caption and key. */ | |
8177 | Lisp_Object key = PROP (TOOL_BAR_ITEM_KEY); | |
8178 | Lisp_Object capt = PROP (TOOL_BAR_ITEM_CAPTION); | |
51b59d79 PE |
8179 | const char *label = SYMBOLP (key) ? SSDATA (SYMBOL_NAME (key)) : ""; |
8180 | const char *caption = STRINGP (capt) ? SSDATA (capt) : ""; | |
603dfc72 AS |
8181 | EMACS_INT max_lbl = 2 * tool_bar_max_label_size; |
8182 | char *buf = (char *) xmalloc (max_lbl + 1); | |
f904c0f9 | 8183 | Lisp_Object new_lbl; |
603dfc72 | 8184 | size_t caption_len = strlen (caption); |
f904c0f9 | 8185 | |
603dfc72 | 8186 | if (caption_len <= max_lbl && caption[0] != '\0') |
f904c0f9 JD |
8187 | { |
8188 | strcpy (buf, caption); | |
603dfc72 AS |
8189 | while (caption_len > 0 && buf[caption_len - 1] == '.') |
8190 | caption_len--; | |
8191 | buf[caption_len] = '\0'; | |
8192 | label = caption = buf; | |
f904c0f9 JD |
8193 | } |
8194 | ||
d3da34e0 | 8195 | if (strlen (label) <= max_lbl && label[0] != '\0') |
f904c0f9 JD |
8196 | { |
8197 | int i; | |
603dfc72 AS |
8198 | if (label != buf) |
8199 | strcpy (buf, label); | |
f904c0f9 | 8200 | |
603dfc72 AS |
8201 | for (i = 0; buf[i] != '\0'; ++i) |
8202 | if (buf[i] == '-') | |
8203 | buf[i] = ' '; | |
f904c0f9 | 8204 | label = buf; |
d3da34e0 | 8205 | |
f904c0f9 | 8206 | } |
603dfc72 AS |
8207 | else |
8208 | label = ""; | |
f904c0f9 JD |
8209 | |
8210 | new_lbl = Fupcase_initials (make_string (label, strlen (label))); | |
8211 | if (SCHARS (new_lbl) <= tool_bar_max_label_size) | |
8212 | PROP (TOOL_BAR_ITEM_LABEL) = new_lbl; | |
c25ce9d0 J |
8213 | else |
8214 | PROP (TOOL_BAR_ITEM_LABEL) = make_string ("", 0); | |
8215 | free (buf); | |
f904c0f9 JD |
8216 | } |
8217 | ||
7ee32cda GM |
8218 | /* If got a filter apply it on binding. */ |
8219 | if (!NILP (filter)) | |
9ea173e8 | 8220 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
8221 | = menu_item_eval_property (list2 (filter, |
8222 | list2 (Qquote, | |
9ea173e8 | 8223 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
8224 | |
8225 | /* See if the binding is a keymap. Give up if it is. */ | |
02067692 | 8226 | if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
8227 | return 0; |
8228 | ||
8229 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
8230 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
8231 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
8232 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda | 8233 | |
c60ee5e7 | 8234 | /* Handle radio buttons or toggle boxes. */ |
9ea173e8 GM |
8235 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
8236 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
8237 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
8238 | |
8239 | return 1; | |
c60ee5e7 | 8240 | |
7ee32cda GM |
8241 | #undef PROP |
8242 | } | |
8243 | ||
8244 | ||
9ea173e8 GM |
8245 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
8246 | that can be reused. */ | |
7ee32cda GM |
8247 | |
8248 | static void | |
d3da34e0 | 8249 | init_tool_bar_items (Lisp_Object reuse) |
7ee32cda GM |
8250 | { |
8251 | if (VECTORP (reuse)) | |
9ea173e8 | 8252 | tool_bar_items_vector = reuse; |
7ee32cda | 8253 | else |
9ea173e8 GM |
8254 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
8255 | ntool_bar_items = 0; | |
7ee32cda GM |
8256 | } |
8257 | ||
8258 | ||
9ea173e8 GM |
8259 | /* Append parsed tool bar item properties from |
8260 | tool_bar_item_properties */ | |
7ee32cda GM |
8261 | |
8262 | static void | |
d3da34e0 | 8263 | append_tool_bar_item (void) |
7ee32cda GM |
8264 | { |
8265 | Lisp_Object *to, *from; | |
c60ee5e7 | 8266 | |
9ea173e8 GM |
8267 | /* Enlarge tool_bar_items_vector if necessary. */ |
8268 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
8269 | >= XVECTOR (tool_bar_items_vector)->size) | |
219ccf1b RS |
8270 | tool_bar_items_vector |
8271 | = larger_vector (tool_bar_items_vector, | |
8272 | 2 * XVECTOR (tool_bar_items_vector)->size, Qnil); | |
7ee32cda | 8273 | |
9ea173e8 GM |
8274 | /* Append entries from tool_bar_item_properties to the end of |
8275 | tool_bar_items_vector. */ | |
8276 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
8277 | from = XVECTOR (tool_bar_item_properties)->contents; | |
72af86bd | 8278 | memcpy (to, from, TOOL_BAR_ITEM_NSLOTS * sizeof *to); |
9ea173e8 | 8279 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
8280 | } |
8281 | ||
8282 | ||
8283 | ||
8284 | ||
e8886a1d | 8285 | \f |
dcc408a0 RS |
8286 | /* Read a character using menus based on maps in the array MAPS. |
8287 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
8288 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
8289 | |
8290 | PREV_EVENT is the previous input event, or nil if we are reading | |
8291 | the first event of a key sequence. | |
8292 | ||
83d68044 | 8293 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 8294 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 8295 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
8296 | |
8297 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 8298 | and the strings associated with various map elements. |
8150596a RS |
8299 | |
8300 | This can be done with X menus or with menus put in the minibuf. | |
8301 | These are done in different ways, depending on how the input will be read. | |
8302 | Menus using X are done after auto-saving in read-char, getting the input | |
8303 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
8304 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 8305 | |
7617111f | 8306 | static Lisp_Object |
d3da34e0 JB |
8307 | read_char_x_menu_prompt (int nmaps, Lisp_Object *maps, Lisp_Object prev_event, |
8308 | int *used_mouse_menu) | |
284f4730 | 8309 | { |
7d6de002 | 8310 | int mapno; |
7d6de002 | 8311 | |
6569cc8d JB |
8312 | if (used_mouse_menu) |
8313 | *used_mouse_menu = 0; | |
284f4730 JB |
8314 | |
8315 | /* Use local over global Menu maps */ | |
8316 | ||
7d6de002 RS |
8317 | if (! menu_prompting) |
8318 | return Qnil; | |
8319 | ||
03361bcc RS |
8320 | /* Optionally disregard all but the global map. */ |
8321 | if (inhibit_local_menu_bar_menus) | |
8322 | { | |
8323 | maps += (nmaps - 1); | |
8324 | nmaps = 1; | |
8325 | } | |
8326 | ||
1f5b1641 | 8327 | #ifdef HAVE_MENUS |
7d6de002 RS |
8328 | /* If we got to this point via a mouse click, |
8329 | use a real menu for mouse selection. */ | |
5a8d99e0 | 8330 | if (EVENT_HAS_PARAMETERS (prev_event) |
7539e11f KR |
8331 | && !EQ (XCAR (prev_event), Qmenu_bar) |
8332 | && !EQ (XCAR (prev_event), Qtool_bar)) | |
7d6de002 RS |
8333 | { |
8334 | /* Display the menu and get the selection. */ | |
8335 | Lisp_Object *realmaps | |
8336 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
8337 | Lisp_Object value; | |
8338 | int nmaps1 = 0; | |
8339 | ||
8340 | /* Use the maps that are not nil. */ | |
8341 | for (mapno = 0; mapno < nmaps; mapno++) | |
8342 | if (!NILP (maps[mapno])) | |
8343 | realmaps[nmaps1++] = maps[mapno]; | |
8344 | ||
8345 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
8346 | if (CONSP (value)) |
8347 | { | |
68f297c5 RS |
8348 | Lisp_Object tem; |
8349 | ||
7539e11f | 8350 | record_menu_key (XCAR (value)); |
8eb4d8ef | 8351 | |
68f297c5 RS |
8352 | /* If we got multiple events, unread all but |
8353 | the first. | |
8354 | There is no way to prevent those unread events | |
8355 | from showing up later in last_nonmenu_event. | |
8356 | So turn symbol and integer events into lists, | |
8357 | to indicate that they came from a mouse menu, | |
8358 | so that when present in last_nonmenu_event | |
8359 | they won't confuse things. */ | |
9beb8baa | 8360 | for (tem = XCDR (value); CONSP (tem); tem = XCDR (tem)) |
8eb4d8ef | 8361 | { |
7539e11f KR |
8362 | record_menu_key (XCAR (tem)); |
8363 | if (SYMBOLP (XCAR (tem)) | |
8364 | || INTEGERP (XCAR (tem))) | |
f3fbd155 | 8365 | XSETCAR (tem, Fcons (XCAR (tem), Qdisabled)); |
8eb4d8ef | 8366 | } |
68f297c5 | 8367 | |
663258f2 JB |
8368 | /* If we got more than one event, put all but the first |
8369 | onto this list to be read later. | |
8370 | Return just the first event now. */ | |
24597608 | 8371 | Vunread_command_events |
7539e11f KR |
8372 | = nconc2 (XCDR (value), Vunread_command_events); |
8373 | value = XCAR (value); | |
663258f2 | 8374 | } |
1c90c381 | 8375 | else if (NILP (value)) |
dcc408a0 | 8376 | value = Qt; |
6569cc8d JB |
8377 | if (used_mouse_menu) |
8378 | *used_mouse_menu = 1; | |
7d6de002 RS |
8379 | return value; |
8380 | } | |
1f5b1641 | 8381 | #endif /* HAVE_MENUS */ |
8150596a RS |
8382 | return Qnil ; |
8383 | } | |
8384 | ||
af2b7cc9 KS |
8385 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
8386 | We make this bigger when necessary, and never free it. */ | |
8387 | static char *read_char_minibuf_menu_text; | |
8388 | /* Size of that buffer. */ | |
8389 | static int read_char_minibuf_menu_width; | |
8390 | ||
8150596a | 8391 | static Lisp_Object |
d3da34e0 | 8392 | read_char_minibuf_menu_prompt (int commandflag, int nmaps, Lisp_Object *maps) |
8150596a RS |
8393 | { |
8394 | int mapno; | |
8395 | register Lisp_Object name; | |
af2b7cc9 | 8396 | int nlength; |
14e40288 | 8397 | /* FIXME: Use the minibuffer's frame width. */ |
2cdbe73e | 8398 | int width = FRAME_COLS (SELECTED_FRAME ()) - 4; |
8150596a | 8399 | int idx = -1; |
af2b7cc9 | 8400 | int nobindings = 1; |
8150596a | 8401 | Lisp_Object rest, vector; |
af2b7cc9 | 8402 | char *menu; |
8150596a | 8403 | |
8c907a56 | 8404 | vector = Qnil; |
7189cad8 | 8405 | name = Qnil; |
8c907a56 | 8406 | |
8150596a RS |
8407 | if (! menu_prompting) |
8408 | return Qnil; | |
8409 | ||
f6bb4883 CY |
8410 | /* Get the menu name from the first map that has one (a prompt string). */ |
8411 | for (mapno = 0; mapno < nmaps; mapno++) | |
8412 | { | |
8413 | name = Fkeymap_prompt (maps[mapno]); | |
8414 | if (!NILP (name)) | |
8415 | break; | |
8416 | } | |
8417 | ||
8418 | /* If we don't have any menus, just read a character normally. */ | |
8419 | if (!STRINGP (name)) | |
8420 | return Qnil; | |
8421 | ||
af2b7cc9 | 8422 | /* Make sure we have a big enough buffer for the menu text. */ |
f6bb4883 | 8423 | width = max (width, SBYTES (name)); |
af2b7cc9 KS |
8424 | if (read_char_minibuf_menu_text == 0) |
8425 | { | |
8426 | read_char_minibuf_menu_width = width + 4; | |
8427 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
8428 | } | |
8429 | else if (width + 4 > read_char_minibuf_menu_width) | |
8430 | { | |
8431 | read_char_minibuf_menu_width = width + 4; | |
8432 | read_char_minibuf_menu_text | |
8433 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
8434 | } | |
8435 | menu = read_char_minibuf_menu_text; | |
8436 | ||
af2b7cc9 | 8437 | /* Prompt string always starts with map's prompt, and a space. */ |
d5db4077 KR |
8438 | strcpy (menu, SDATA (name)); |
8439 | nlength = SBYTES (name); | |
af2b7cc9 KS |
8440 | menu[nlength++] = ':'; |
8441 | menu[nlength++] = ' '; | |
8442 | menu[nlength] = 0; | |
8443 | ||
7d6de002 RS |
8444 | /* Start prompting at start of first map. */ |
8445 | mapno = 0; | |
8446 | rest = maps[mapno]; | |
284f4730 | 8447 | |
af2b7cc9 KS |
8448 | /* Present the documented bindings, a line at a time. */ |
8449 | while (1) | |
284f4730 | 8450 | { |
af2b7cc9 KS |
8451 | int notfirst = 0; |
8452 | int i = nlength; | |
8453 | Lisp_Object obj; | |
8454 | int ch; | |
8455 | Lisp_Object orig_defn_macro; | |
284f4730 | 8456 | |
af2b7cc9 KS |
8457 | /* Loop over elements of map. */ |
8458 | while (i < width) | |
284f4730 | 8459 | { |
af2b7cc9 | 8460 | Lisp_Object elt; |
284f4730 | 8461 | |
af2b7cc9 KS |
8462 | /* If reached end of map, start at beginning of next map. */ |
8463 | if (NILP (rest)) | |
8464 | { | |
8465 | mapno++; | |
8466 | /* At end of last map, wrap around to first map if just starting, | |
8467 | or end this line if already have something on it. */ | |
8468 | if (mapno == nmaps) | |
8469 | { | |
8470 | mapno = 0; | |
8471 | if (notfirst || nobindings) break; | |
8472 | } | |
8473 | rest = maps[mapno]; | |
8474 | } | |
7d6de002 | 8475 | |
af2b7cc9 KS |
8476 | /* Look at the next element of the map. */ |
8477 | if (idx >= 0) | |
8478 | elt = XVECTOR (vector)->contents[idx]; | |
8479 | else | |
8480 | elt = Fcar_safe (rest); | |
7d6de002 | 8481 | |
af2b7cc9 | 8482 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 8483 | { |
af2b7cc9 KS |
8484 | /* If we found a dense table in the keymap, |
8485 | advanced past it, but start scanning its contents. */ | |
8486 | rest = Fcdr_safe (rest); | |
8487 | vector = elt; | |
8488 | idx = 0; | |
284f4730 | 8489 | } |
7d6de002 RS |
8490 | else |
8491 | { | |
af2b7cc9 KS |
8492 | /* An ordinary element. */ |
8493 | Lisp_Object event, tem; | |
7d6de002 | 8494 | |
af2b7cc9 KS |
8495 | if (idx < 0) |
8496 | { | |
8497 | event = Fcar_safe (elt); /* alist */ | |
8498 | elt = Fcdr_safe (elt); | |
8499 | } | |
8500 | else | |
8501 | { | |
8502 | XSETINT (event, idx); /* vector */ | |
8503 | } | |
284f4730 | 8504 | |
af2b7cc9 | 8505 | /* Ignore the element if it has no prompt string. */ |
ef7417fd | 8506 | if (INTEGERP (event) && parse_menu_item (elt, -1)) |
af2b7cc9 KS |
8507 | { |
8508 | /* 1 if the char to type matches the string. */ | |
8509 | int char_matches; | |
8510 | Lisp_Object upcased_event, downcased_event; | |
8511 | Lisp_Object desc = Qnil; | |
8512 | Lisp_Object s | |
8513 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
8514 | ||
8515 | upcased_event = Fupcase (event); | |
8516 | downcased_event = Fdowncase (event); | |
d5db4077 KR |
8517 | char_matches = (XINT (upcased_event) == SREF (s, 0) |
8518 | || XINT (downcased_event) == SREF (s, 0)); | |
af2b7cc9 KS |
8519 | if (! char_matches) |
8520 | desc = Fsingle_key_description (event, Qnil); | |
8521 | ||
8522 | #if 0 /* It is redundant to list the equivalent key bindings because | |
8523 | the prefix is what the user has already typed. */ | |
8524 | tem | |
8525 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
8526 | if (!NILP (tem)) | |
8527 | /* Insert equivalent keybinding. */ | |
8528 | s = concat2 (s, tem); | |
8529 | #endif | |
8530 | tem | |
8531 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
8532 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
8533 | { | |
8534 | /* Insert button prefix. */ | |
8535 | Lisp_Object selected | |
8536 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
8537 | if (EQ (tem, QCradio)) | |
8538 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
8539 | else | |
8540 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
8541 | s = concat2 (tem, s); | |
8542 | } | |
c60ee5e7 | 8543 | |
af2b7cc9 KS |
8544 | |
8545 | /* If we have room for the prompt string, add it to this line. | |
8546 | If this is the first on the line, always add it. */ | |
d5db4077 KR |
8547 | if ((SCHARS (s) + i + 2 |
8548 | + (char_matches ? 0 : SCHARS (desc) + 3)) | |
af2b7cc9 KS |
8549 | < width |
8550 | || !notfirst) | |
8551 | { | |
8552 | int thiswidth; | |
8553 | ||
8554 | /* Punctuate between strings. */ | |
8555 | if (notfirst) | |
8556 | { | |
8557 | strcpy (menu + i, ", "); | |
8558 | i += 2; | |
8559 | } | |
8560 | notfirst = 1; | |
8561 | nobindings = 0 ; | |
8562 | ||
8563 | /* If the char to type doesn't match the string's | |
8564 | first char, explicitly show what char to type. */ | |
8565 | if (! char_matches) | |
8566 | { | |
8567 | /* Add as much of string as fits. */ | |
d5db4077 | 8568 | thiswidth = SCHARS (desc); |
af2b7cc9 KS |
8569 | if (thiswidth + i > width) |
8570 | thiswidth = width - i; | |
72af86bd | 8571 | memcpy (menu + i, SDATA (desc), thiswidth); |
af2b7cc9 KS |
8572 | i += thiswidth; |
8573 | strcpy (menu + i, " = "); | |
8574 | i += 3; | |
8575 | } | |
8576 | ||
8577 | /* Add as much of string as fits. */ | |
d5db4077 | 8578 | thiswidth = SCHARS (s); |
af2b7cc9 KS |
8579 | if (thiswidth + i > width) |
8580 | thiswidth = width - i; | |
72af86bd | 8581 | memcpy (menu + i, SDATA (s), thiswidth); |
af2b7cc9 KS |
8582 | i += thiswidth; |
8583 | menu[i] = 0; | |
8584 | } | |
8585 | else | |
8586 | { | |
8587 | /* If this element does not fit, end the line now, | |
8588 | and save the element for the next line. */ | |
8589 | strcpy (menu + i, "..."); | |
8590 | break; | |
8591 | } | |
8592 | } | |
8593 | ||
8594 | /* Move past this element. */ | |
8595 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) | |
8596 | /* Handle reaching end of dense table. */ | |
8597 | idx = -1; | |
8598 | if (idx >= 0) | |
8599 | idx++; | |
8600 | else | |
8601 | rest = Fcdr_safe (rest); | |
8602 | } | |
325309f5 | 8603 | } |
8150596a | 8604 | |
af2b7cc9 | 8605 | /* Prompt with that and read response. */ |
c60ee5e7 | 8606 | message2_nolog (menu, strlen (menu), |
af2b7cc9 | 8607 | ! NILP (current_buffer->enable_multibyte_characters)); |
284f4730 | 8608 | |
af2b7cc9 KS |
8609 | /* Make believe its not a keyboard macro in case the help char |
8610 | is pressed. Help characters are not recorded because menu prompting | |
8611 | is not used on replay. | |
8612 | */ | |
8613 | orig_defn_macro = current_kboard->defining_kbd_macro; | |
8614 | current_kboard->defining_kbd_macro = Qnil; | |
8615 | do | |
179f689c | 8616 | obj = read_char (commandflag, 0, 0, Qt, 0, NULL); |
af2b7cc9 KS |
8617 | while (BUFFERP (obj)); |
8618 | current_kboard->defining_kbd_macro = orig_defn_macro; | |
284f4730 | 8619 | |
af2b7cc9 KS |
8620 | if (!INTEGERP (obj)) |
8621 | return obj; | |
9688ff53 KL |
8622 | else if (XINT (obj) == -2) |
8623 | return obj; | |
af2b7cc9 KS |
8624 | else |
8625 | ch = XINT (obj); | |
8626 | ||
8627 | if (! EQ (obj, menu_prompt_more_char) | |
8628 | && (!INTEGERP (menu_prompt_more_char) | |
8629 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) | |
8630 | { | |
8631 | if (!NILP (current_kboard->defining_kbd_macro)) | |
8632 | store_kbd_macro_char (obj); | |
8633 | return obj; | |
8634 | } | |
8635 | /* Help char - go round again */ | |
8636 | } | |
284f4730 | 8637 | } |
284f4730 JB |
8638 | \f |
8639 | /* Reading key sequences. */ | |
8640 | ||
8641 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
8642 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
8643 | keymap, or nil otherwise. Return the index of the first keymap in | |
8644 | which KEY has any binding, or NMAPS if no map has a binding. | |
8645 | ||
8646 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
8647 | followed by the corresponding non-meta character. Keymaps in | |
8648 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
8649 | NEXT. | |
8650 | ||
88cb0656 JB |
8651 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
8652 | unmodified. | |
8653 | ||
569871d2 | 8654 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
8655 | |
8656 | static int | |
d3da34e0 JB |
8657 | follow_key (Lisp_Object key, int nmaps, Lisp_Object *current, Lisp_Object *defs, |
8658 | Lisp_Object *next) | |
284f4730 JB |
8659 | { |
8660 | int i, first_binding; | |
8661 | ||
284f4730 JB |
8662 | first_binding = nmaps; |
8663 | for (i = nmaps - 1; i >= 0; i--) | |
8664 | { | |
8665 | if (! NILP (current[i])) | |
8666 | { | |
fe5b94c5 | 8667 | defs[i] = access_keymap (current[i], key, 1, 0, 1); |
284f4730 JB |
8668 | if (! NILP (defs[i])) |
8669 | first_binding = i; | |
8670 | } | |
8671 | else | |
8672 | defs[i] = Qnil; | |
8673 | } | |
8674 | ||
284f4730 | 8675 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
8676 | if (first_binding < nmaps) |
8677 | for (i = 0; i < nmaps; i++) | |
02067692 | 8678 | next[i] = NILP (defs[i]) ? Qnil : get_keymap (defs[i], 0, 1); |
284f4730 JB |
8679 | |
8680 | return first_binding; | |
8681 | } | |
8682 | ||
a7f26f28 SM |
8683 | /* Structure used to keep track of partial application of key remapping |
8684 | such as Vfunction_key_map and Vkey_translation_map. */ | |
8685 | typedef struct keyremap | |
8686 | { | |
c2028ac6 RS |
8687 | /* This is the map originally specified for this use. */ |
8688 | Lisp_Object parent; | |
8689 | /* This is a submap reached by looking up, in PARENT, | |
8690 | the events from START to END. */ | |
8691 | Lisp_Object map; | |
8692 | /* Positions [START, END) in the key sequence buffer | |
8693 | are the key that we have scanned so far. | |
8694 | Those events are the ones that we will replace | |
8695 | if PAREHT maps them into a key sequence. */ | |
a7f26f28 SM |
8696 | int start, end; |
8697 | } keyremap; | |
8698 | ||
fe5b94c5 SM |
8699 | /* Lookup KEY in MAP. |
8700 | MAP is a keymap mapping keys to key vectors or functions. | |
8701 | If the mapping is a function and DO_FUNCTION is non-zero, then | |
8702 | the function is called with PROMPT as parameter and its return | |
8703 | value is used as the return value of this function (after checking | |
8704 | that it is indeed a vector). */ | |
8705 | ||
8706 | static Lisp_Object | |
d3da34e0 JB |
8707 | access_keymap_keyremap (Lisp_Object map, Lisp_Object key, Lisp_Object prompt, |
8708 | int do_funcall) | |
fe5b94c5 SM |
8709 | { |
8710 | Lisp_Object next; | |
6b61353c | 8711 | |
fe5b94c5 SM |
8712 | next = access_keymap (map, key, 1, 0, 1); |
8713 | ||
8714 | /* Handle symbol with autoload definition. */ | |
8715 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
8716 | && CONSP (XSYMBOL (next)->function) | |
8717 | && EQ (XCAR (XSYMBOL (next)->function), Qautoload)) | |
8718 | do_autoload (XSYMBOL (next)->function, next); | |
8719 | ||
8720 | /* Handle a symbol whose function definition is a keymap | |
8721 | or an array. */ | |
8722 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) | |
592c0e80 | 8723 | && (ARRAYP (XSYMBOL (next)->function) |
fe5b94c5 SM |
8724 | || KEYMAPP (XSYMBOL (next)->function))) |
8725 | next = XSYMBOL (next)->function; | |
6b61353c | 8726 | |
fe5b94c5 SM |
8727 | /* If the keymap gives a function, not an |
8728 | array, then call the function with one arg and use | |
8729 | its value instead. */ | |
8730 | if (SYMBOLP (next) && !NILP (Ffboundp (next)) && do_funcall) | |
8731 | { | |
8732 | Lisp_Object tem; | |
8733 | tem = next; | |
8734 | ||
8735 | next = call1 (next, prompt); | |
8736 | /* If the function returned something invalid, | |
8737 | barf--don't ignore it. | |
8738 | (To ignore it safely, we would need to gcpro a bunch of | |
8739 | other variables.) */ | |
8740 | if (! (VECTORP (next) || STRINGP (next))) | |
8741 | error ("Function %s returns invalid key sequence", tem); | |
8742 | } | |
8743 | return next; | |
8744 | } | |
8745 | ||
8746 | /* Do one step of the key remapping used for function-key-map and | |
8747 | key-translation-map: | |
8748 | KEYBUF is the buffer holding the input events. | |
8749 | BUFSIZE is its maximum size. | |
8750 | FKEY is a pointer to the keyremap structure to use. | |
8751 | INPUT is the index of the last element in KEYBUF. | |
8752 | DOIT if non-zero says that the remapping can actually take place. | |
8753 | DIFF is used to return the number of keys added/removed by the remapping. | |
8754 | PARENT is the root of the keymap. | |
8755 | PROMPT is the prompt to use if the remapping happens through a function. | |
8756 | The return value is non-zero if the remapping actually took place. */ | |
8757 | ||
8758 | static int | |
d3da34e0 JB |
8759 | keyremap_step (Lisp_Object *keybuf, int bufsize, volatile keyremap *fkey, |
8760 | int input, int doit, int *diff, Lisp_Object prompt) | |
fe5b94c5 SM |
8761 | { |
8762 | Lisp_Object next, key; | |
8763 | ||
8764 | key = keybuf[fkey->end++]; | |
c2028ac6 RS |
8765 | |
8766 | if (KEYMAPP (fkey->parent)) | |
8767 | next = access_keymap_keyremap (fkey->map, key, prompt, doit); | |
8768 | else | |
8769 | next = Qnil; | |
fe5b94c5 SM |
8770 | |
8771 | /* If keybuf[fkey->start..fkey->end] is bound in the | |
8772 | map and we're in a position to do the key remapping, replace it with | |
8773 | the binding and restart with fkey->start at the end. */ | |
8774 | if ((VECTORP (next) || STRINGP (next)) && doit) | |
8775 | { | |
8776 | int len = XFASTINT (Flength (next)); | |
8777 | int i; | |
8778 | ||
8779 | *diff = len - (fkey->end - fkey->start); | |
8780 | ||
8781 | if (input + *diff >= bufsize) | |
8782 | error ("Key sequence too long"); | |
8783 | ||
8784 | /* Shift the keys that follow fkey->end. */ | |
8785 | if (*diff < 0) | |
8786 | for (i = fkey->end; i < input; i++) | |
8787 | keybuf[i + *diff] = keybuf[i]; | |
8788 | else if (*diff > 0) | |
8789 | for (i = input - 1; i >= fkey->end; i--) | |
8790 | keybuf[i + *diff] = keybuf[i]; | |
8791 | /* Overwrite the old keys with the new ones. */ | |
8792 | for (i = 0; i < len; i++) | |
8793 | keybuf[fkey->start + i] | |
8794 | = Faref (next, make_number (i)); | |
8795 | ||
8796 | fkey->start = fkey->end += *diff; | |
24d80a06 | 8797 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8798 | |
8799 | return 1; | |
8800 | } | |
8801 | ||
8802 | fkey->map = get_keymap (next, 0, 1); | |
8803 | ||
8804 | /* If we no longer have a bound suffix, try a new position for | |
8805 | fkey->start. */ | |
8806 | if (!CONSP (fkey->map)) | |
8807 | { | |
8808 | fkey->end = ++fkey->start; | |
24d80a06 | 8809 | fkey->map = fkey->parent; |
fe5b94c5 SM |
8810 | } |
8811 | return 0; | |
8812 | } | |
a7f26f28 | 8813 | |
df0f2ba1 | 8814 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
8815 | storing it in KEYBUF, a buffer of size BUFSIZE. |
8816 | Prompt with PROMPT. | |
284f4730 | 8817 | Return the length of the key sequence stored. |
dcc408a0 | 8818 | Return -1 if the user rejected a command menu. |
284f4730 | 8819 | |
f4255cd1 JB |
8820 | Echo starting immediately unless `prompt' is 0. |
8821 | ||
8822 | Where a key sequence ends depends on the currently active keymaps. | |
8823 | These include any minor mode keymaps active in the current buffer, | |
8824 | the current buffer's local map, and the global map. | |
8825 | ||
8826 | If a key sequence has no other bindings, we check Vfunction_key_map | |
8827 | to see if some trailing subsequence might be the beginning of a | |
8828 | function key's sequence. If so, we try to read the whole function | |
8829 | key, and substitute its symbolic name into the key sequence. | |
8830 | ||
fbcd35bd JB |
8831 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
8832 | `double-' events into similar click events, if that would make them | |
8833 | bound. We try to turn `triple-' events first into `double-' events, | |
8834 | then into clicks. | |
f4255cd1 JB |
8835 | |
8836 | If we get a mouse click in a mode line, vertical divider, or other | |
8837 | non-text area, we treat the click as if it were prefixed by the | |
8838 | symbol denoting that area - `mode-line', `vertical-line', or | |
8839 | whatever. | |
8840 | ||
8841 | If the sequence starts with a mouse click, we read the key sequence | |
8842 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 8843 | |
f4255cd1 JB |
8844 | If the user switches frames in the midst of a key sequence, we put |
8845 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
8846 | read_char will return it. |
8847 | ||
8848 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
8849 | from the selected window's buffer. */ | |
48e416d4 | 8850 | |
284f4730 | 8851 | static int |
d3da34e0 JB |
8852 | read_key_sequence (Lisp_Object *keybuf, int bufsize, Lisp_Object prompt, |
8853 | int dont_downcase_last, int can_return_switch_frame, | |
8854 | int fix_current_buffer) | |
284f4730 | 8855 | { |
9d70a3fc AS |
8856 | Lisp_Object from_string; |
8857 | int count = SPECPDL_INDEX (); | |
f4255cd1 | 8858 | |
284f4730 | 8859 | /* How many keys there are in the current key sequence. */ |
9d70a3fc | 8860 | int t; |
284f4730 | 8861 | |
284f4730 JB |
8862 | /* The length of the echo buffer when we started reading, and |
8863 | the length of this_command_keys when we started reading. */ | |
9d70a3fc AS |
8864 | int echo_start; |
8865 | int keys_start; | |
284f4730 JB |
8866 | |
8867 | /* The number of keymaps we're scanning right now, and the number of | |
8868 | keymaps we have allocated space for. */ | |
9d70a3fc AS |
8869 | int nmaps; |
8870 | int nmaps_allocated = 0; | |
284f4730 | 8871 | |
284f4730 JB |
8872 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
8873 | the current keymaps. */ | |
9d70a3fc | 8874 | Lisp_Object *defs = NULL; |
284f4730 | 8875 | |
f4255cd1 JB |
8876 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
8877 | in the current keymaps, or nil where it is not a prefix. */ | |
9d70a3fc | 8878 | Lisp_Object *submaps = NULL; |
f4255cd1 | 8879 | |
e0dff5f6 | 8880 | /* The local map to start out with at start of key sequence. */ |
9d70a3fc | 8881 | Lisp_Object orig_local_map; |
e0dff5f6 | 8882 | |
30690496 DL |
8883 | /* The map from the `keymap' property to start out with at start of |
8884 | key sequence. */ | |
9d70a3fc | 8885 | Lisp_Object orig_keymap; |
30690496 | 8886 | |
e0dff5f6 RS |
8887 | /* 1 if we have already considered switching to the local-map property |
8888 | of the place where a mouse click occurred. */ | |
9d70a3fc | 8889 | int localized_local_map = 0; |
e0dff5f6 | 8890 | |
9de5eb68 | 8891 | /* The index in submaps[] of the first keymap that has a binding for |
f4255cd1 | 8892 | this key sequence. In other words, the lowest i such that |
9de5eb68 | 8893 | submaps[i] is non-nil. */ |
9d70a3fc | 8894 | int first_binding; |
7189cad8 | 8895 | /* Index of the first key that has no binding. |
a7f26f28 | 8896 | It is useless to try fkey.start larger than that. */ |
9d70a3fc | 8897 | int first_unbound; |
284f4730 | 8898 | |
f4255cd1 | 8899 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
8900 | input key. |
8901 | ||
8902 | We use this to recover after recognizing a function key. Once we | |
8903 | realize that a suffix of the current key sequence is actually a | |
8904 | function key's escape sequence, we replace the suffix with the | |
8905 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
8906 | contains a new and different key sequence, so the echo area, |
8907 | this_command_keys, and the submaps and defs arrays are wrong. In | |
8908 | this situation, we set mock_input to t, set t to 0, and jump to | |
8909 | restart_sequence; the loop will read keys from keybuf up until | |
8910 | mock_input, thus rebuilding the state; and then it will resume | |
8911 | reading characters from the keyboard. */ | |
9d70a3fc | 8912 | int mock_input = 0; |
284f4730 | 8913 | |
253598e4 | 8914 | /* If the sequence is unbound in submaps[], then |
a7f26f28 SM |
8915 | keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map, |
8916 | and fkey.map is its binding. | |
253598e4 | 8917 | |
f4255cd1 JB |
8918 | These might be > t, indicating that all function key scanning |
8919 | should hold off until t reaches them. We do this when we've just | |
8920 | recognized a function key, to avoid searching for the function | |
8921 | key's again in Vfunction_key_map. */ | |
9d70a3fc | 8922 | keyremap fkey; |
284f4730 | 8923 | |
4f4a84ec | 8924 | /* Likewise, for key_translation_map and input-decode-map. */ |
9d70a3fc | 8925 | keyremap keytran, indec; |
a612e298 | 8926 | |
025ae953 CY |
8927 | /* Non-zero if we are trying to map a key by changing an upper-case |
8928 | letter to lower case, or a shifted function key to an unshifted | |
8929 | one. */ | |
9d70a3fc | 8930 | int shift_translated = 0; |
025ae953 | 8931 | |
fe5b94c5 SM |
8932 | /* If we receive a `switch-frame' or `select-window' event in the middle of |
8933 | a key sequence, we put it off for later. | |
8934 | While we're reading, we keep the event here. */ | |
9d70a3fc | 8935 | Lisp_Object delayed_switch_frame; |
cd21b839 | 8936 | |
51763820 BF |
8937 | /* See the comment below... */ |
8938 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 8939 | Lisp_Object first_event; |
51763820 | 8940 | #endif |
4efda7dd | 8941 | |
9d70a3fc AS |
8942 | Lisp_Object original_uppercase; |
8943 | int original_uppercase_position = -1; | |
309b0fc8 | 8944 | |
bc536d84 | 8945 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 8946 | int dummyflag = 0; |
bc536d84 | 8947 | |
3b9189f8 RS |
8948 | struct buffer *starting_buffer; |
8949 | ||
2dc00208 | 8950 | /* List of events for which a fake prefix key has been generated. */ |
9d70a3fc | 8951 | Lisp_Object fake_prefixed_keys = Qnil; |
2dc00208 | 8952 | |
03cee6ae | 8953 | #if defined (GOBBLE_FIRST_EVENT) |
4efda7dd | 8954 | int junk; |
03cee6ae | 8955 | #endif |
4efda7dd | 8956 | |
2dc00208 GM |
8957 | struct gcpro gcpro1; |
8958 | ||
8959 | GCPRO1 (fake_prefixed_keys); | |
7d18f9ae RS |
8960 | raw_keybuf_count = 0; |
8961 | ||
4efda7dd RS |
8962 | last_nonmenu_event = Qnil; |
8963 | ||
8964 | delayed_switch_frame = Qnil; | |
033b73e2 | 8965 | |
284f4730 JB |
8966 | if (INTERACTIVE) |
8967 | { | |
84d91fda | 8968 | if (!NILP (prompt)) |
51b403bd CY |
8969 | { |
8970 | /* Install the string STR as the beginning of the string of | |
8971 | echoing, so that it serves as a prompt for the next | |
8972 | character. */ | |
8973 | current_kboard->echo_string = prompt; | |
8974 | current_kboard->echo_after_prompt = SCHARS (prompt); | |
8975 | echo_now (); | |
8976 | } | |
f2647d04 DL |
8977 | else if (cursor_in_echo_area |
8978 | && (FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) | |
8979 | && NILP (Fzerop (Vecho_keystrokes))) | |
284f4730 JB |
8980 | /* This doesn't put in a dash if the echo buffer is empty, so |
8981 | you don't always see a dash hanging out in the minibuffer. */ | |
8982 | echo_dash (); | |
284f4730 JB |
8983 | } |
8984 | ||
f4255cd1 JB |
8985 | /* Record the initial state of the echo area and this_command_keys; |
8986 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 8987 | if (INTERACTIVE) |
df0f2ba1 | 8988 | echo_start = echo_length (); |
f4255cd1 | 8989 | keys_start = this_command_key_count; |
6321824f | 8990 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 8991 | |
51763820 BF |
8992 | #if defined (GOBBLE_FIRST_EVENT) |
8993 | /* This doesn't quite work, because some of the things that read_char | |
8994 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 8995 | this work right. */ |
51763820 | 8996 | |
4efda7dd RS |
8997 | /* Read the first char of the sequence specially, before setting |
8998 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 8999 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
179f689c | 9000 | &junk, NULL); |
51763820 | 9001 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 9002 | |
24a40fbb GM |
9003 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9004 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
db14cfc5 | 9005 | from_string = Qnil; |
e0dff5f6 | 9006 | |
f1ba6ccd CY |
9007 | /* We jump here when we need to reinitialize fkey and keytran; this |
9008 | happens if we switch keyboards between rescans. */ | |
9009 | replay_entire_sequence: | |
9010 | ||
4f4a84ec | 9011 | indec.map = indec.parent = current_kboard->Vinput_decode_map; |
d6805803 | 9012 | fkey.map = fkey.parent = current_kboard->Vlocal_function_key_map; |
4f4a84ec SM |
9013 | keytran.map = keytran.parent = Vkey_translation_map; |
9014 | indec.start = indec.end = 0; | |
3f87f67e KL |
9015 | fkey.start = fkey.end = 0; |
9016 | keytran.start = keytran.end = 0; | |
d6805803 | 9017 | |
3278f20e SM |
9018 | /* We jump here when the key sequence has been thoroughly changed, and |
9019 | we need to rescan it starting from the beginning. When we jump here, | |
9020 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
9021 | replay_sequence: | |
9022 | ||
3b9189f8 | 9023 | starting_buffer = current_buffer; |
7189cad8 | 9024 | first_unbound = bufsize + 1; |
3b9189f8 | 9025 | |
f4255cd1 | 9026 | /* Build our list of keymaps. |
07d2b8de JB |
9027 | If we recognize a function key and replace its escape sequence in |
9028 | keybuf with its symbol, or if the sequence starts with a mouse | |
9029 | click and we need to switch buffers, we jump back here to rebuild | |
9030 | the initial keymaps from the current buffer. */ | |
4cbedc16 | 9031 | nmaps = 0; |
284f4730 | 9032 | |
4c0240d2 | 9033 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) |
4cbedc16 | 9034 | { |
4c0240d2 | 9035 | if (2 > nmaps_allocated) |
4cbedc16 | 9036 | { |
4c0240d2 RS |
9037 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); |
9038 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9039 | nmaps_allocated = 2; | |
4cbedc16 | 9040 | } |
07024c43 | 9041 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; |
4c0240d2 RS |
9042 | } |
9043 | else if (!NILP (Voverriding_local_map)) | |
9044 | { | |
9045 | if (2 > nmaps_allocated) | |
9046 | { | |
9047 | submaps = (Lisp_Object *) alloca (2 * sizeof (submaps[0])); | |
9048 | defs = (Lisp_Object *) alloca (2 * sizeof (defs[0])); | |
9049 | nmaps_allocated = 2; | |
9050 | } | |
07024c43 | 9051 | submaps[nmaps++] = Voverriding_local_map; |
4cbedc16 RS |
9052 | } |
9053 | else | |
9054 | { | |
4cbedc16 RS |
9055 | int nminor; |
9056 | int total; | |
9057 | Lisp_Object *maps; | |
9058 | ||
9059 | nminor = current_minor_maps (0, &maps); | |
9060 | total = nminor + (!NILP (orig_keymap) ? 3 : 2); | |
9061 | ||
9062 | if (total > nmaps_allocated) | |
9063 | { | |
9064 | submaps = (Lisp_Object *) alloca (total * sizeof (submaps[0])); | |
9065 | defs = (Lisp_Object *) alloca (total * sizeof (defs[0])); | |
9066 | nmaps_allocated = total; | |
9067 | } | |
9068 | ||
9069 | if (!NILP (orig_keymap)) | |
9070 | submaps[nmaps++] = orig_keymap; | |
9071 | ||
72af86bd | 9072 | memcpy (submaps + nmaps, maps, nminor * sizeof (submaps[0])); |
4cbedc16 RS |
9073 | |
9074 | nmaps += nminor; | |
9075 | ||
9076 | submaps[nmaps++] = orig_local_map; | |
9077 | } | |
9078 | submaps[nmaps++] = current_global_map; | |
284f4730 JB |
9079 | |
9080 | /* Find an accurate initial value for first_binding. */ | |
9081 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 9082 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
9083 | break; |
9084 | ||
3b9189f8 | 9085 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
9086 | t = 0; |
9087 | ||
9088 | /* These are no-ops the first time through, but if we restart, they | |
9089 | revert the echo area and this_command_keys to their original state. */ | |
9090 | this_command_key_count = keys_start; | |
df0f2ba1 | 9091 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
9092 | echo_truncate (echo_start); |
9093 | ||
cca310da JB |
9094 | /* If the best binding for the current key sequence is a keymap, or |
9095 | we may be looking at a function key's escape sequence, keep on | |
9096 | reading. */ | |
a7f26f28 SM |
9097 | while (first_binding < nmaps |
9098 | /* Keep reading as long as there's a prefix binding. */ | |
9099 | ? !NILP (submaps[first_binding]) | |
e9bf89a0 RS |
9100 | /* Don't return in the middle of a possible function key sequence, |
9101 | if the only bindings we found were via case conversion. | |
9102 | Thus, if ESC O a has a function-key-map translation | |
9103 | and ESC o has a binding, don't return after ESC O, | |
9104 | so that we can translate ESC O plus the next character. */ | |
4f4a84ec | 9105 | : (/* indec.start < t || fkey.start < t || */ keytran.start < t)) |
284f4730 JB |
9106 | { |
9107 | Lisp_Object key; | |
7d6de002 | 9108 | int used_mouse_menu = 0; |
284f4730 | 9109 | |
7b4aedb9 JB |
9110 | /* Where the last real key started. If we need to throw away a |
9111 | key that has expanded into more than one element of keybuf | |
9112 | (say, a mouse click on the mode line which is being treated | |
9113 | as [mode-line (mouse-...)], then we backtrack to this point | |
9114 | of keybuf. */ | |
9d70a3fc | 9115 | int last_real_key_start; |
7b4aedb9 | 9116 | |
0a7f1fc0 JB |
9117 | /* These variables are analogous to echo_start and keys_start; |
9118 | while those allow us to restart the entire key sequence, | |
9119 | echo_local_start and keys_local_start allow us to throw away | |
9120 | just one key. */ | |
9d70a3fc | 9121 | int echo_local_start, keys_local_start, local_first_binding; |
f4255cd1 | 9122 | |
4f4a84ec SM |
9123 | eassert (indec.end == t || (indec.end > t && indec.end <= mock_input)); |
9124 | eassert (indec.start <= indec.end); | |
fe5b94c5 SM |
9125 | eassert (fkey.start <= fkey.end); |
9126 | eassert (keytran.start <= keytran.end); | |
4f4a84ec SM |
9127 | /* key-translation-map is applied *after* function-key-map |
9128 | which is itself applied *after* input-decode-map. */ | |
9129 | eassert (fkey.end <= indec.start); | |
a7f26f28 | 9130 | eassert (keytran.end <= fkey.start); |
7189cad8 | 9131 | |
4f4a84ec SM |
9132 | if (/* first_unbound < indec.start && first_unbound < fkey.start && */ |
9133 | first_unbound < keytran.start) | |
7189cad8 SM |
9134 | { /* The prefix upto first_unbound has no binding and has |
9135 | no translation left to do either, so we know it's unbound. | |
9136 | If we don't stop now, we risk staying here indefinitely | |
9137 | (if the user keeps entering fkey or keytran prefixes | |
9138 | like C-c ESC ESC ESC ESC ...) */ | |
9139 | int i; | |
9140 | for (i = first_unbound + 1; i < t; i++) | |
9141 | keybuf[i - first_unbound - 1] = keybuf[i]; | |
9142 | mock_input = t - first_unbound - 1; | |
4f4a84ec SM |
9143 | indec.end = indec.start -= first_unbound + 1; |
9144 | indec.map = indec.parent; | |
a7f26f28 | 9145 | fkey.end = fkey.start -= first_unbound + 1; |
24d80a06 | 9146 | fkey.map = fkey.parent; |
a7f26f28 | 9147 | keytran.end = keytran.start -= first_unbound + 1; |
24d80a06 | 9148 | keytran.map = keytran.parent; |
7189cad8 SM |
9149 | goto replay_sequence; |
9150 | } | |
9151 | ||
284f4730 | 9152 | if (t >= bufsize) |
3fe8e9a2 | 9153 | error ("Key sequence too long"); |
284f4730 | 9154 | |
f4255cd1 JB |
9155 | if (INTERACTIVE) |
9156 | echo_local_start = echo_length (); | |
9157 | keys_local_start = this_command_key_count; | |
9158 | local_first_binding = first_binding; | |
df0f2ba1 | 9159 | |
f4255cd1 | 9160 | replay_key: |
0a7f1fc0 | 9161 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
9162 | jumped back up to replay_key; in that case, these restore the |
9163 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 9164 | loop. */ |
40932d1a | 9165 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 9166 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
9167 | this_command_key_count = keys_local_start; |
9168 | first_binding = local_first_binding; | |
9169 | ||
7e85b935 RS |
9170 | /* By default, assume each event is "real". */ |
9171 | last_real_key_start = t; | |
9172 | ||
f4255cd1 | 9173 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
9174 | if (t < mock_input) |
9175 | { | |
9176 | key = keybuf[t]; | |
9177 | add_command_key (key); | |
f2647d04 DL |
9178 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9179 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9180 | echo_char (key); |
284f4730 | 9181 | } |
253598e4 JB |
9182 | |
9183 | /* If not, we should actually read a character. */ | |
284f4730 JB |
9184 | else |
9185 | { | |
beecf6a1 | 9186 | { |
c5fdd383 | 9187 | KBOARD *interrupted_kboard = current_kboard; |
788f89eb | 9188 | struct frame *interrupted_frame = SELECTED_FRAME (); |
9688ff53 KL |
9189 | key = read_char (NILP (prompt), nmaps, |
9190 | (Lisp_Object *) submaps, last_nonmenu_event, | |
251bc578 | 9191 | &used_mouse_menu, NULL); |
03f77f0a CY |
9192 | if ((INTEGERP (key) && XINT (key) == -2) /* wrong_kboard_jmpbuf */ |
9193 | /* When switching to a new tty (with a new keyboard), | |
9194 | read_char returns the new buffer, rather than -2 | |
9195 | (Bug#5095). This is because `terminal-init-xterm' | |
9196 | calls read-char, which eats the wrong_kboard_jmpbuf | |
9197 | return. Any better way to fix this? -- cyd */ | |
9198 | || (interrupted_kboard != current_kboard)) | |
beecf6a1 | 9199 | { |
e079ecf4 KL |
9200 | int found = 0; |
9201 | struct kboard *k; | |
b3e6f69c | 9202 | |
e079ecf4 KL |
9203 | for (k = all_kboards; k; k = k->next_kboard) |
9204 | if (k == interrupted_kboard) | |
9205 | found = 1; | |
9206 | ||
9207 | if (!found) | |
9208 | { | |
9209 | /* Don't touch interrupted_kboard when it's been | |
9210 | deleted. */ | |
9211 | delayed_switch_frame = Qnil; | |
f1ba6ccd | 9212 | goto replay_entire_sequence; |
e079ecf4 | 9213 | } |
b3e6f69c | 9214 | |
5798cf15 KH |
9215 | if (!NILP (delayed_switch_frame)) |
9216 | { | |
c5fdd383 | 9217 | interrupted_kboard->kbd_queue |
5798cf15 | 9218 | = Fcons (delayed_switch_frame, |
c5fdd383 | 9219 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
9220 | delayed_switch_frame = Qnil; |
9221 | } | |
e079ecf4 | 9222 | |
beecf6a1 | 9223 | while (t > 0) |
c5fdd383 KH |
9224 | interrupted_kboard->kbd_queue |
9225 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
9226 | |
9227 | /* If the side queue is non-empty, ensure it begins with a | |
9228 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 | 9229 | if (CONSP (interrupted_kboard->kbd_queue) |
7539e11f | 9230 | && (key = XCAR (interrupted_kboard->kbd_queue), |
5798cf15 KH |
9231 | !(EVENT_HAS_PARAMETERS (key) |
9232 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
9233 | Qswitch_frame)))) | |
df0f2ba1 KH |
9234 | { |
9235 | Lisp_Object frame; | |
9236 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 9237 | interrupted_kboard->kbd_queue |
df0f2ba1 | 9238 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 9239 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 9240 | } |
beecf6a1 | 9241 | mock_input = 0; |
24a40fbb GM |
9242 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9243 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
f1ba6ccd | 9244 | goto replay_entire_sequence; |
beecf6a1 | 9245 | } |
beecf6a1 | 9246 | } |
284f4730 | 9247 | |
dcc408a0 RS |
9248 | /* read_char returns t when it shows a menu and the user rejects it. |
9249 | Just return -1. */ | |
9250 | if (EQ (key, Qt)) | |
7d18f9ae RS |
9251 | { |
9252 | unbind_to (count, Qnil); | |
2dc00208 | 9253 | UNGCPRO; |
7d18f9ae RS |
9254 | return -1; |
9255 | } | |
dcc408a0 | 9256 | |
f4255cd1 | 9257 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
9258 | Emacs 18 handles this by returning immediately with a |
9259 | zero, so that's what we'll do. */ | |
8c18cbfb | 9260 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 9261 | { |
f4255cd1 | 9262 | t = 0; |
bc536d84 RS |
9263 | /* The Microsoft C compiler can't handle the goto that |
9264 | would go here. */ | |
309b0fc8 | 9265 | dummyflag = 1; |
bc536d84 | 9266 | break; |
cd21b839 | 9267 | } |
df0f2ba1 | 9268 | |
3cb81011 KH |
9269 | /* If the current buffer has been changed from under us, the |
9270 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 9271 | if (BUFFERP (key)) |
3cb81011 | 9272 | { |
5c12e63f | 9273 | timer_resume_idle (); |
3021d3a9 | 9274 | |
3cb81011 | 9275 | mock_input = t; |
f571ae0d RS |
9276 | /* Reset the current buffer from the selected window |
9277 | in case something changed the former and not the latter. | |
9278 | This is to be more consistent with the behavior | |
9279 | of the command_loop_1. */ | |
9280 | if (fix_current_buffer) | |
a94a4335 | 9281 | { |
788f89eb | 9282 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
9283 | Fkill_emacs (Qnil); |
9284 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
9285 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
9286 | } | |
f571ae0d | 9287 | |
24a40fbb GM |
9288 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9289 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3cb81011 KH |
9290 | goto replay_sequence; |
9291 | } | |
9292 | ||
3b9189f8 RS |
9293 | /* If we have a quit that was typed in another frame, and |
9294 | quit_throw_to_read_char switched buffers, | |
9295 | replay to get the right keymap. */ | |
f4e05d97 GM |
9296 | if (INTEGERP (key) |
9297 | && XINT (key) == quit_char | |
9298 | && current_buffer != starting_buffer) | |
3b9189f8 | 9299 | { |
7d18f9ae RS |
9300 | GROW_RAW_KEYBUF; |
9301 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
9302 | keybuf[t++] = key; |
9303 | mock_input = t; | |
9304 | Vquit_flag = Qnil; | |
24a40fbb GM |
9305 | orig_local_map = get_local_map (PT, current_buffer, Qlocal_map); |
9306 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
3b9189f8 RS |
9307 | goto replay_sequence; |
9308 | } | |
3cb81011 | 9309 | |
284f4730 | 9310 | Vquit_flag = Qnil; |
7d18f9ae RS |
9311 | |
9312 | if (EVENT_HAS_PARAMETERS (key) | |
fe5b94c5 | 9313 | /* Either a `switch-frame' or a `select-window' event. */ |
7d18f9ae RS |
9314 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) |
9315 | { | |
9316 | /* If we're at the beginning of a key sequence, and the caller | |
9317 | says it's okay, go ahead and return this event. If we're | |
9318 | in the midst of a key sequence, delay it until the end. */ | |
9319 | if (t > 0 || !can_return_switch_frame) | |
9320 | { | |
9321 | delayed_switch_frame = key; | |
9322 | goto replay_key; | |
9323 | } | |
9324 | } | |
9325 | ||
9326 | GROW_RAW_KEYBUF; | |
4ed4b975 JB |
9327 | ASET (raw_keybuf, raw_keybuf_count, key); |
9328 | raw_keybuf_count++; | |
7e85b935 | 9329 | } |
284f4730 | 9330 | |
df0f2ba1 | 9331 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
9332 | in their CHAR-ADDRESS field. For example, a click on |
9333 | the mode line is prefixed by the symbol `mode-line'. | |
9334 | ||
9335 | Furthermore, key sequences beginning with mouse clicks | |
9336 | are read using the keymaps of the buffer clicked on, not | |
9337 | the current buffer. So we may have to switch the buffer | |
9338 | here. | |
9339 | ||
9340 | When we turn one event into two events, we must make sure | |
9341 | that neither of the two looks like the original--so that, | |
9342 | if we replay the events, they won't be expanded again. | |
9343 | If not for this, such reexpansion could happen either here | |
9344 | or when user programs play with this-command-keys. */ | |
9345 | if (EVENT_HAS_PARAMETERS (key)) | |
9346 | { | |
9b8eb840 | 9347 | Lisp_Object kind; |
6b61353c | 9348 | Lisp_Object string; |
cca310da | 9349 | |
9b8eb840 | 9350 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 9351 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 9352 | { |
9b8eb840 | 9353 | Lisp_Object window, posn; |
f4255cd1 | 9354 | |
4ed4b975 | 9355 | window = POSN_WINDOW (EVENT_START (key)); |
6b61353c | 9356 | posn = POSN_POSN (EVENT_START (key)); |
7ee32cda | 9357 | |
2cf066c3 GM |
9358 | if (CONSP (posn) |
9359 | || (!NILP (fake_prefixed_keys) | |
9360 | && !NILP (Fmemq (key, fake_prefixed_keys)))) | |
0a7f1fc0 | 9361 | { |
2cf066c3 GM |
9362 | /* We're looking a second time at an event for which |
9363 | we generated a fake prefix key. Set | |
7e85b935 RS |
9364 | last_real_key_start appropriately. */ |
9365 | if (t > 0) | |
9366 | last_real_key_start = t - 1; | |
cd21b839 | 9367 | } |
7e85b935 RS |
9368 | |
9369 | /* Key sequences beginning with mouse clicks are | |
9370 | read using the keymaps in the buffer clicked on, | |
9371 | not the current buffer. If we're at the | |
9372 | beginning of a key sequence, switch buffers. */ | |
9373 | if (last_real_key_start == 0 | |
8c18cbfb KH |
9374 | && WINDOWP (window) |
9375 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 9376 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 9377 | { |
7d18f9ae | 9378 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
9379 | keybuf[t] = key; |
9380 | mock_input = t + 1; | |
9381 | ||
9382 | /* Arrange to go back to the original buffer once we're | |
9383 | done reading the key sequence. Note that we can't | |
9384 | use save_excursion_{save,restore} here, because they | |
9385 | save point as well as the current buffer; we don't | |
9386 | want to save point, because redisplay may change it, | |
9387 | to accommodate a Fset_window_start or something. We | |
9388 | don't want to do this at the top of the function, | |
9389 | because we may get input from a subprocess which | |
9390 | wants to change the selected window and stuff (say, | |
9391 | emacsclient). */ | |
9392 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
9393 | ||
788f89eb | 9394 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 9395 | Fkill_emacs (Qnil); |
24a40fbb | 9396 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
30690496 | 9397 | orig_local_map = get_local_map (PT, current_buffer, |
24a40fbb GM |
9398 | Qlocal_map); |
9399 | orig_keymap = get_local_map (PT, current_buffer, Qkeymap); | |
7e85b935 | 9400 | goto replay_sequence; |
0a7f1fc0 | 9401 | } |
c60ee5e7 | 9402 | |
e0dff5f6 RS |
9403 | /* For a mouse click, get the local text-property keymap |
9404 | of the place clicked on, rather than point. */ | |
7ee32cda | 9405 | if (last_real_key_start == 0 |
7539e11f | 9406 | && CONSP (XCDR (key)) |
e0dff5f6 | 9407 | && ! localized_local_map) |
5ec75a55 | 9408 | { |
e0dff5f6 RS |
9409 | Lisp_Object map_here, start, pos; |
9410 | ||
9411 | localized_local_map = 1; | |
9412 | start = EVENT_START (key); | |
c60ee5e7 | 9413 | |
6b61353c | 9414 | if (CONSP (start) && POSN_INBUFFER_P (start)) |
e0dff5f6 RS |
9415 | { |
9416 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb | 9417 | if (INTEGERP (pos) |
602ae44c CY |
9418 | && XINT (pos) >= BEGV |
9419 | && XINT (pos) <= ZV) | |
e0dff5f6 | 9420 | { |
30690496 | 9421 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9422 | current_buffer, Qlocal_map); |
e0dff5f6 RS |
9423 | if (!EQ (map_here, orig_local_map)) |
9424 | { | |
9425 | orig_local_map = map_here; | |
b74e16a3 | 9426 | ++localized_local_map; |
30690496 | 9427 | } |
b74e16a3 | 9428 | |
30690496 | 9429 | map_here = get_local_map (XINT (pos), |
24a40fbb | 9430 | current_buffer, Qkeymap); |
30690496 DL |
9431 | if (!EQ (map_here, orig_keymap)) |
9432 | { | |
9433 | orig_keymap = map_here; | |
b74e16a3 DK |
9434 | ++localized_local_map; |
9435 | } | |
9436 | ||
9437 | if (localized_local_map > 1) | |
9438 | { | |
30690496 DL |
9439 | keybuf[t] = key; |
9440 | mock_input = t + 1; | |
9441 | ||
e0dff5f6 RS |
9442 | goto replay_sequence; |
9443 | } | |
9444 | } | |
9445 | } | |
9446 | } | |
9447 | ||
9448 | /* Expand mode-line and scroll-bar events into two events: | |
9449 | use posn as a fake prefix key. */ | |
2dc00208 GM |
9450 | if (SYMBOLP (posn) |
9451 | && (NILP (fake_prefixed_keys) | |
9452 | || NILP (Fmemq (key, fake_prefixed_keys)))) | |
e0dff5f6 | 9453 | { |
7e85b935 | 9454 | if (t + 1 >= bufsize) |
3fe8e9a2 | 9455 | error ("Key sequence too long"); |
c60ee5e7 | 9456 | |
2dc00208 GM |
9457 | keybuf[t] = posn; |
9458 | keybuf[t + 1] = key; | |
9459 | mock_input = t + 2; | |
9460 | ||
9461 | /* Record that a fake prefix key has been generated | |
9462 | for KEY. Don't modify the event; this would | |
9463 | prevent proper action when the event is pushed | |
c7f4f573 | 9464 | back into unread-command-events. */ |
2dc00208 | 9465 | fake_prefixed_keys = Fcons (key, fake_prefixed_keys); |
7ee32cda GM |
9466 | |
9467 | /* If on a mode line string with a local keymap, | |
9468 | reconsider the key sequence with that keymap. */ | |
6b61353c KH |
9469 | if (string = POSN_STRING (EVENT_START (key)), |
9470 | (CONSP (string) && STRINGP (XCAR (string)))) | |
7ee32cda | 9471 | { |
6b61353c | 9472 | Lisp_Object pos, map, map2; |
7ee32cda | 9473 | |
7ee32cda GM |
9474 | pos = XCDR (string); |
9475 | string = XCAR (string); | |
52e386c2 | 9476 | if (XINT (pos) >= 0 |
d5db4077 | 9477 | && XINT (pos) < SCHARS (string)) |
30690496 DL |
9478 | { |
9479 | map = Fget_text_property (pos, Qlocal_map, string); | |
9480 | if (!NILP (map)) | |
9481 | orig_local_map = map; | |
9482 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9483 | if (!NILP (map2)) | |
9484 | orig_keymap = map2; | |
9485 | if (!NILP (map) || !NILP (map2)) | |
9486 | goto replay_sequence; | |
9487 | } | |
7ee32cda GM |
9488 | } |
9489 | ||
7e85b935 | 9490 | goto replay_key; |
5ec75a55 | 9491 | } |
6b61353c KH |
9492 | else if (NILP (from_string) |
9493 | && (string = POSN_STRING (EVENT_START (key)), | |
9494 | (CONSP (string) && STRINGP (XCAR (string))))) | |
db14cfc5 GM |
9495 | { |
9496 | /* For a click on a string, i.e. overlay string or a | |
9497 | string displayed via the `display' property, | |
9498 | consider `local-map' and `keymap' properties of | |
9499 | that string. */ | |
6b61353c | 9500 | Lisp_Object pos, map, map2; |
db14cfc5 | 9501 | |
db14cfc5 GM |
9502 | pos = XCDR (string); |
9503 | string = XCAR (string); | |
9504 | if (XINT (pos) >= 0 | |
d5db4077 | 9505 | && XINT (pos) < SCHARS (string)) |
db14cfc5 GM |
9506 | { |
9507 | map = Fget_text_property (pos, Qlocal_map, string); | |
9508 | if (!NILP (map)) | |
9509 | orig_local_map = map; | |
9510 | map2 = Fget_text_property (pos, Qkeymap, string); | |
9511 | if (!NILP (map2)) | |
9512 | orig_keymap = map2; | |
9513 | ||
9514 | if (!NILP (map) || !NILP (map2)) | |
9515 | { | |
9516 | from_string = string; | |
32949266 CY |
9517 | keybuf[t++] = key; |
9518 | mock_input = t; | |
db14cfc5 GM |
9519 | goto replay_sequence; |
9520 | } | |
9521 | } | |
9522 | } | |
0a7f1fc0 | 9523 | } |
7539e11f | 9524 | else if (CONSP (XCDR (key)) |
7a80a6f6 | 9525 | && CONSP (EVENT_START (key)) |
7539e11f | 9526 | && CONSP (XCDR (EVENT_START (key)))) |
7e85b935 | 9527 | { |
9b8eb840 | 9528 | Lisp_Object posn; |
7e85b935 | 9529 | |
6b61353c | 9530 | posn = POSN_POSN (EVENT_START (key)); |
7e85b935 RS |
9531 | /* Handle menu-bar events: |
9532 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 9533 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
9534 | { |
9535 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 9536 | error ("Key sequence too long"); |
7e85b935 RS |
9537 | keybuf[t] = posn; |
9538 | keybuf[t+1] = key; | |
9539 | ||
9540 | /* Zap the position in key, so we know that we've | |
9541 | expanded it, and don't try to do so again. */ | |
6b61353c KH |
9542 | POSN_SET_POSN (EVENT_START (key), |
9543 | Fcons (posn, Qnil)); | |
7e85b935 RS |
9544 | |
9545 | mock_input = t + 2; | |
9546 | goto replay_sequence; | |
9547 | } | |
8c18cbfb | 9548 | else if (CONSP (posn)) |
7e85b935 RS |
9549 | { |
9550 | /* We're looking at the second event of a | |
9551 | sequence which we expanded before. Set | |
9552 | last_real_key_start appropriately. */ | |
9553 | if (last_real_key_start == t && t > 0) | |
9554 | last_real_key_start = t - 1; | |
9555 | } | |
a6d53864 | 9556 | } |
284f4730 | 9557 | } |
f4255cd1 JB |
9558 | |
9559 | /* We have finally decided that KEY is something we might want | |
9560 | to look up. */ | |
284f4730 JB |
9561 | first_binding = (follow_key (key, |
9562 | nmaps - first_binding, | |
253598e4 | 9563 | submaps + first_binding, |
284f4730 | 9564 | defs + first_binding, |
4e50f26a | 9565 | submaps + first_binding) |
284f4730 | 9566 | + first_binding); |
0a7f1fc0 | 9567 | |
f4255cd1 | 9568 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
65e0fbbf SM |
9569 | if (first_binding < nmaps) |
9570 | /* This is needed for the following scenario: | |
9571 | event 0: a down-event that gets dropped by calling replay_key. | |
9572 | event 1: some normal prefix like C-h. | |
4f4a84ec SM |
9573 | After event 0, first_unbound is 0, after event 1 indec.start, |
9574 | fkey.start, and keytran.start are all 1, so when we see that | |
9575 | C-h is bound, we need to update first_unbound. */ | |
65e0fbbf SM |
9576 | first_unbound = max (t + 1, first_unbound); |
9577 | else | |
0a7f1fc0 | 9578 | { |
9b8eb840 | 9579 | Lisp_Object head; |
c60ee5e7 | 9580 | |
4f4a84ec | 9581 | /* Remember the position to put an upper bound on indec.start. */ |
7189cad8 | 9582 | first_unbound = min (t, first_unbound); |
0a7f1fc0 | 9583 | |
9b8eb840 | 9584 | head = EVENT_HEAD (key); |
24736fbc | 9585 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
9586 | { |
9587 | read_key_sequence_cmd = Vprefix_help_command; | |
9588 | keybuf[t++] = key; | |
9589 | last_nonmenu_event = key; | |
bc536d84 RS |
9590 | /* The Microsoft C compiler can't handle the goto that |
9591 | would go here. */ | |
309b0fc8 | 9592 | dummyflag = 1; |
0d882d52 | 9593 | break; |
7e85b935 RS |
9594 | } |
9595 | ||
8c18cbfb | 9596 | if (SYMBOLP (head)) |
0a7f1fc0 | 9597 | { |
9b8eb840 KH |
9598 | Lisp_Object breakdown; |
9599 | int modifiers; | |
0a7f1fc0 | 9600 | |
9b8eb840 | 9601 | breakdown = parse_modifiers (head); |
7539e11f | 9602 | modifiers = XINT (XCAR (XCDR (breakdown))); |
559f9d04 RS |
9603 | /* Attempt to reduce an unbound mouse event to a simpler |
9604 | event that is bound: | |
9605 | Drags reduce to clicks. | |
9606 | Double-clicks reduce to clicks. | |
9607 | Triple-clicks reduce to double-clicks, then to clicks. | |
9608 | Down-clicks are eliminated. | |
9609 | Double-downs reduce to downs, then are eliminated. | |
9610 | Triple-downs reduce to double-downs, then to downs, | |
9611 | then are eliminated. */ | |
9612 | if (modifiers & (down_modifier | drag_modifier | |
9613 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 9614 | { |
559f9d04 RS |
9615 | while (modifiers & (down_modifier | drag_modifier |
9616 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
9617 | { |
9618 | Lisp_Object new_head, new_click; | |
9619 | if (modifiers & triple_modifier) | |
9620 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
9621 | else if (modifiers & double_modifier) |
9622 | modifiers &= ~double_modifier; | |
9623 | else if (modifiers & drag_modifier) | |
9624 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
9625 | else |
9626 | { | |
9627 | /* Dispose of this `down' event by simply jumping | |
9628 | back to replay_key, to get another event. | |
9629 | ||
9630 | Note that if this event came from mock input, | |
9631 | then just jumping back to replay_key will just | |
9632 | hand it to us again. So we have to wipe out any | |
9633 | mock input. | |
9634 | ||
9635 | We could delete keybuf[t] and shift everything | |
9636 | after that to the left by one spot, but we'd also | |
9637 | have to fix up any variable that points into | |
9638 | keybuf, and shifting isn't really necessary | |
9639 | anyway. | |
9640 | ||
9641 | Adding prefixes for non-textual mouse clicks | |
9642 | creates two characters of mock input, and both | |
9643 | must be thrown away. If we're only looking at | |
9644 | the prefix now, we can just jump back to | |
9645 | replay_key. On the other hand, if we've already | |
9646 | processed the prefix, and now the actual click | |
9647 | itself is giving us trouble, then we've lost the | |
9648 | state of the keymaps we want to backtrack to, and | |
9649 | we need to replay the whole sequence to rebuild | |
9650 | it. | |
9651 | ||
9652 | Beyond that, only function key expansion could | |
9653 | create more than two keys, but that should never | |
9654 | generate mouse events, so it's okay to zero | |
9655 | mock_input in that case too. | |
9656 | ||
65e0fbbf SM |
9657 | FIXME: The above paragraph seems just plain |
9658 | wrong, if you consider things like | |
9659 | xterm-mouse-mode. -stef | |
9660 | ||
559f9d04 | 9661 | Isn't this just the most wonderful code ever? */ |
017be6c7 SM |
9662 | |
9663 | /* If mock_input > t + 1, the above simplification | |
9664 | will actually end up dropping keys on the floor. | |
9665 | This is probably OK for now, but even | |
4f4a84ec SM |
9666 | if mock_input <= t + 1, we need to adjust indec, |
9667 | fkey, and keytran. | |
017be6c7 SM |
9668 | Typical case [header-line down-mouse-N]: |
9669 | mock_input = 2, t = 1, fkey.end = 1, | |
9670 | last_real_key_start = 0. */ | |
4f4a84ec | 9671 | if (indec.end > last_real_key_start) |
017be6c7 | 9672 | { |
4f4a84ec SM |
9673 | indec.end = indec.start |
9674 | = min (last_real_key_start, indec.start); | |
9675 | indec.map = indec.parent; | |
9676 | if (fkey.end > last_real_key_start) | |
017be6c7 | 9677 | { |
4f4a84ec SM |
9678 | fkey.end = fkey.start |
9679 | = min (last_real_key_start, fkey.start); | |
9680 | fkey.map = fkey.parent; | |
9681 | if (keytran.end > last_real_key_start) | |
9682 | { | |
9683 | keytran.end = keytran.start | |
9684 | = min (last_real_key_start, keytran.start); | |
9685 | keytran.map = keytran.parent; | |
9686 | } | |
017be6c7 SM |
9687 | } |
9688 | } | |
559f9d04 RS |
9689 | if (t == last_real_key_start) |
9690 | { | |
9691 | mock_input = 0; | |
9692 | goto replay_key; | |
9693 | } | |
9694 | else | |
9695 | { | |
9696 | mock_input = last_real_key_start; | |
9697 | goto replay_sequence; | |
9698 | } | |
9699 | } | |
9700 | ||
27203ead | 9701 | new_head |
7539e11f | 9702 | = apply_modifiers (modifiers, XCAR (breakdown)); |
27203ead RS |
9703 | new_click |
9704 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
9705 | |
9706 | /* Look for a binding for this new key. follow_key | |
9707 | promises that it didn't munge submaps the | |
9708 | last time we called it, since key was unbound. */ | |
27203ead RS |
9709 | first_binding |
9710 | = (follow_key (new_click, | |
9711 | nmaps - local_first_binding, | |
9712 | submaps + local_first_binding, | |
9713 | defs + local_first_binding, | |
4e50f26a | 9714 | submaps + local_first_binding) |
27203ead | 9715 | + local_first_binding); |
fbcd35bd JB |
9716 | |
9717 | /* If that click is bound, go for it. */ | |
9718 | if (first_binding < nmaps) | |
9719 | { | |
9720 | key = new_click; | |
9721 | break; | |
9722 | } | |
9723 | /* Otherwise, we'll leave key set to the drag event. */ | |
9724 | } | |
0a7f1fc0 JB |
9725 | } |
9726 | } | |
9727 | } | |
9728 | ||
284f4730 | 9729 | keybuf[t++] = key; |
7d6de002 RS |
9730 | /* Normally, last_nonmenu_event gets the previous key we read. |
9731 | But when a mouse popup menu is being used, | |
9732 | we don't update last_nonmenu_event; it continues to hold the mouse | |
9733 | event that preceded the first level of menu. */ | |
9734 | if (!used_mouse_menu) | |
9735 | last_nonmenu_event = key; | |
284f4730 | 9736 | |
6321824f RS |
9737 | /* Record what part of this_command_keys is the current key sequence. */ |
9738 | this_single_command_key_start = this_command_key_count - t; | |
9739 | ||
4f4a84ec SM |
9740 | /* Look for this sequence in input-decode-map. |
9741 | Scan from indec.end until we find a bound suffix. */ | |
9742 | while (indec.end < t) | |
9743 | { | |
9744 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9745 | int done, diff; | |
9746 | ||
9747 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); | |
9748 | done = keyremap_step (keybuf, bufsize, &indec, max (t, mock_input), | |
9749 | 1, &diff, prompt); | |
9750 | UNGCPRO; | |
9751 | if (done) | |
9752 | { | |
9753 | mock_input = diff + max (t, mock_input); | |
9754 | goto replay_sequence; | |
9755 | } | |
9756 | } | |
9757 | ||
9758 | if (first_binding < nmaps && NILP (submaps[first_binding]) | |
9759 | && indec.start >= t) | |
65e0fbbf | 9760 | /* There is a binding and it's not a prefix. |
4f4a84ec | 9761 | (and it doesn't have any input-decode-map translation pending). |
65e0fbbf SM |
9762 | There is thus no function-key in this sequence. |
9763 | Moving fkey.start is important in this case to allow keytran.start | |
9764 | to go over the sequence before we return (since we keep the | |
9765 | invariant that keytran.end <= fkey.start). */ | |
9766 | { | |
a7f26f28 | 9767 | if (fkey.start < t) |
24d80a06 | 9768 | (fkey.start = fkey.end = t, fkey.map = fkey.parent); |
65e0fbbf SM |
9769 | } |
9770 | else | |
9771 | /* If the sequence is unbound, see if we can hang a function key | |
9772 | off the end of it. */ | |
fe5b94c5 | 9773 | /* Continue scan from fkey.end until we find a bound suffix. */ |
4f4a84ec | 9774 | while (fkey.end < indec.start) |
a612e298 | 9775 | { |
4f4a84ec | 9776 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 SM |
9777 | int done, diff; |
9778 | ||
4f4a84ec | 9779 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 SM |
9780 | done = keyremap_step (keybuf, bufsize, &fkey, |
9781 | max (t, mock_input), | |
9782 | /* If there's a binding (i.e. | |
9783 | first_binding >= nmaps) we don't want | |
9784 | to apply this function-key-mapping. */ | |
9785 | fkey.end + 1 == t && first_binding >= nmaps, | |
24d80a06 | 9786 | &diff, prompt); |
fe5b94c5 SM |
9787 | UNGCPRO; |
9788 | if (done) | |
a612e298 | 9789 | { |
fe5b94c5 | 9790 | mock_input = diff + max (t, mock_input); |
4f4a84ec SM |
9791 | /* Adjust the input-decode-map counters. */ |
9792 | indec.end += diff; | |
9793 | indec.start += diff; | |
9794 | ||
a612e298 RS |
9795 | goto replay_sequence; |
9796 | } | |
fe5b94c5 | 9797 | } |
a612e298 | 9798 | |
fe5b94c5 SM |
9799 | /* Look for this sequence in key-translation-map. |
9800 | Scan from keytran.end until we find a bound suffix. */ | |
9801 | while (keytran.end < fkey.start) | |
9802 | { | |
4f4a84ec | 9803 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
fe5b94c5 | 9804 | int done, diff; |
a612e298 | 9805 | |
4f4a84ec | 9806 | GCPRO4 (indec.map, fkey.map, keytran.map, delayed_switch_frame); |
fe5b94c5 | 9807 | done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input), |
24d80a06 | 9808 | 1, &diff, prompt); |
fe5b94c5 SM |
9809 | UNGCPRO; |
9810 | if (done) | |
9811 | { | |
9812 | mock_input = diff + max (t, mock_input); | |
4f4a84ec SM |
9813 | /* Adjust the function-key-map and input-decode-map counters. */ |
9814 | indec.end += diff; | |
9815 | indec.start += diff; | |
fe5b94c5 SM |
9816 | fkey.end += diff; |
9817 | fkey.start += diff; | |
6b61353c | 9818 | |
fe5b94c5 SM |
9819 | goto replay_sequence; |
9820 | } | |
9821 | } | |
4e50f26a RS |
9822 | |
9823 | /* If KEY is not defined in any of the keymaps, | |
9824 | and cannot be part of a function key or translation, | |
9825 | and is an upper case letter | |
9826 | use the corresponding lower-case letter instead. */ | |
65e0fbbf | 9827 | if (first_binding >= nmaps |
4f4a84ec | 9828 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t |
8c18cbfb | 9829 | && INTEGERP (key) |
c23cad0b | 9830 | && ((CHARACTERP (make_number (XINT (key) & ~CHAR_MODIFIER_MASK)) |
16747e03 | 9831 | && UPPERCASEP (XINT (key) & ~CHAR_MODIFIER_MASK)) |
4e50f26a RS |
9832 | || (XINT (key) & shift_modifier))) |
9833 | { | |
569871d2 | 9834 | Lisp_Object new_key; |
569871d2 | 9835 | |
309b0fc8 RS |
9836 | original_uppercase = key; |
9837 | original_uppercase_position = t - 1; | |
9838 | ||
831f35a2 | 9839 | if (XINT (key) & shift_modifier) |
569871d2 | 9840 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 9841 | else |
16747e03 | 9842 | XSETINT (new_key, (DOWNCASE (XINT (key) & ~CHAR_MODIFIER_MASK) |
a864f6d6 | 9843 | | (XINT (key) & CHAR_MODIFIER_MASK))); |
569871d2 | 9844 | |
3fe8e9a2 RS |
9845 | /* We have to do this unconditionally, regardless of whether |
9846 | the lower-case char is defined in the keymaps, because they | |
9847 | might get translated through function-key-map. */ | |
9848 | keybuf[t - 1] = new_key; | |
2cf4b7b2 | 9849 | mock_input = max (t, mock_input); |
025ae953 | 9850 | shift_translated = 1; |
3fe8e9a2 RS |
9851 | |
9852 | goto replay_sequence; | |
4e50f26a | 9853 | } |
ef8fd672 RS |
9854 | /* If KEY is not defined in any of the keymaps, |
9855 | and cannot be part of a function key or translation, | |
9856 | and is a shifted function key, | |
9857 | use the corresponding unshifted function key instead. */ | |
65e0fbbf | 9858 | if (first_binding >= nmaps |
21ec2c43 | 9859 | && /* indec.start >= t && fkey.start >= t && */ keytran.start >= t) |
ef8fd672 | 9860 | { |
21ec2c43 SM |
9861 | Lisp_Object breakdown = parse_modifiers (key); |
9862 | int modifiers | |
9863 | = CONSP (breakdown) ? (XINT (XCAR (XCDR (breakdown)))) : 0; | |
9864 | ||
9865 | if (modifiers & shift_modifier | |
9866 | /* Treat uppercase keys as shifted. */ | |
9867 | || (INTEGERP (key) | |
87df3c32 SM |
9868 | && (KEY_TO_CHAR (key) |
9869 | < XCHAR_TABLE (current_buffer->downcase_table)->size) | |
21ec2c43 | 9870 | && UPPERCASEP (KEY_TO_CHAR (key)))) |
ef8fd672 | 9871 | { |
21ec2c43 SM |
9872 | Lisp_Object new_key |
9873 | = (modifiers & shift_modifier | |
9874 | ? apply_modifiers (modifiers & ~shift_modifier, | |
9875 | XCAR (breakdown)) | |
9876 | : make_number (DOWNCASE (KEY_TO_CHAR (key)) | modifiers)); | |
3fe8e9a2 RS |
9877 | |
9878 | original_uppercase = key; | |
9879 | original_uppercase_position = t - 1; | |
ef8fd672 | 9880 | |
21ec2c43 SM |
9881 | /* We have to do this unconditionally, regardless of whether |
9882 | the lower-case char is defined in the keymaps, because they | |
9883 | might get translated through function-key-map. */ | |
3fe8e9a2 | 9884 | keybuf[t - 1] = new_key; |
2cf4b7b2 | 9885 | mock_input = max (t, mock_input); |
21ec2c43 SM |
9886 | /* Reset fkey (and consequently keytran) to apply |
9887 | function-key-map on the result, so that S-backspace is | |
9888 | correctly mapped to DEL (via backspace). OTOH, | |
9889 | input-decode-map doesn't need to go through it again. */ | |
9890 | fkey.start = fkey.end = 0; | |
9891 | keytran.start = keytran.end = 0; | |
025ae953 | 9892 | shift_translated = 1; |
21ec2c43 | 9893 | |
3fe8e9a2 | 9894 | goto replay_sequence; |
ef8fd672 RS |
9895 | } |
9896 | } | |
284f4730 | 9897 | } |
309b0fc8 | 9898 | if (!dummyflag) |
bc536d84 RS |
9899 | read_key_sequence_cmd = (first_binding < nmaps |
9900 | ? defs[first_binding] | |
9901 | : Qnil); | |
284f4730 | 9902 | |
cd21b839 | 9903 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 9904 | unbind_to (count, Qnil); |
07f76a14 | 9905 | |
3fe8e9a2 RS |
9906 | /* Don't downcase the last character if the caller says don't. |
9907 | Don't downcase it if the result is undefined, either. */ | |
9908 | if ((dont_downcase_last || first_binding >= nmaps) | |
a53fe666 | 9909 | && t > 0 |
3fe8e9a2 | 9910 | && t - 1 == original_uppercase_position) |
025ae953 CY |
9911 | { |
9912 | keybuf[t - 1] = original_uppercase; | |
9913 | shift_translated = 0; | |
9914 | } | |
9915 | ||
9916 | if (shift_translated) | |
9917 | Vthis_command_keys_shift_translated = Qt; | |
309b0fc8 | 9918 | |
07f76a14 JB |
9919 | /* Occasionally we fabricate events, perhaps by expanding something |
9920 | according to function-key-map, or by adding a prefix symbol to a | |
9921 | mouse click in the scroll bar or modeline. In this cases, return | |
9922 | the entire generated key sequence, even if we hit an unbound | |
9923 | prefix or a definition before the end. This means that you will | |
9924 | be able to push back the event properly, and also means that | |
9925 | read-key-sequence will always return a logical unit. | |
9926 | ||
9927 | Better ideas? */ | |
cca310da JB |
9928 | for (; t < mock_input; t++) |
9929 | { | |
f2647d04 DL |
9930 | if ((FLOATP (Vecho_keystrokes) || INTEGERP (Vecho_keystrokes)) |
9931 | && NILP (Fzerop (Vecho_keystrokes))) | |
a98ea3f9 | 9932 | echo_char (keybuf[t]); |
cca310da JB |
9933 | add_command_key (keybuf[t]); |
9934 | } | |
07f76a14 | 9935 | |
2dc00208 | 9936 | UNGCPRO; |
284f4730 JB |
9937 | return t; |
9938 | } | |
9939 | ||
d5eecefb | 9940 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
4707d2d0 PJ |
9941 | doc: /* Read a sequence of keystrokes and return as a string or vector. |
9942 | The sequence is sufficient to specify a non-prefix command in the | |
9943 | current local and global maps. | |
9944 | ||
9945 | First arg PROMPT is a prompt string. If nil, do not prompt specially. | |
9946 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos | |
9947 | as a continuation of the previous key. | |
9948 | ||
9949 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not | |
9950 | convert the last event to lower case. (Normally any upper case event | |
9951 | is converted to lower case if the original event is undefined and the lower | |
9952 | case equivalent is defined.) A non-nil value is appropriate for reading | |
9953 | a key sequence to be defined. | |
9954 | ||
9955 | A C-g typed while in this function is treated like any other character, | |
9956 | and `quit-flag' is not set. | |
9957 | ||
9958 | If the key sequence starts with a mouse click, then the sequence is read | |
9959 | using the keymaps of the buffer of the window clicked in, not the buffer | |
9960 | of the selected window as normal. | |
9961 | ||
9962 | `read-key-sequence' drops unbound button-down events, since you normally | |
9963 | only care about the click or drag events which follow them. If a drag | |
9964 | or multi-click event is unbound, but the corresponding click event would | |
9965 | be bound, `read-key-sequence' turns the event into a click event at the | |
9966 | drag's starting position. This means that you don't have to distinguish | |
9967 | between click and drag, double, or triple events unless you want to. | |
9968 | ||
9969 | `read-key-sequence' prefixes mouse events on mode lines, the vertical | |
9970 | lines separating windows, and scroll bars with imaginary keys | |
9971 | `mode-line', `vertical-line', and `vertical-scroll-bar'. | |
9972 | ||
9973 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this | |
9974 | function will process a switch-frame event if the user switches frames | |
9975 | before typing anything. If the user switches frames in the middle of a | |
9976 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME | |
9977 | is nil, then the event will be put off until after the current key sequence. | |
9978 | ||
9979 | `read-key-sequence' checks `function-key-map' for function key | |
9980 | sequences, where they wouldn't conflict with ordinary bindings. See | |
9981 | `function-key-map' for more details. | |
9982 | ||
9983 | The optional fifth argument COMMAND-LOOP, if non-nil, means | |
9984 | that this key sequence is being read by something that will | |
9985 | read commands one after another. It should be nil if the caller | |
9986 | will read just one key sequence. */) | |
5842a27b | 9987 | (Lisp_Object prompt, Lisp_Object continue_echo, Lisp_Object dont_downcase_last, Lisp_Object can_return_switch_frame, Lisp_Object command_loop) |
284f4730 JB |
9988 | { |
9989 | Lisp_Object keybuf[30]; | |
9990 | register int i; | |
03cee6ae | 9991 | struct gcpro gcpro1; |
aed13378 | 9992 | int count = SPECPDL_INDEX (); |
284f4730 JB |
9993 | |
9994 | if (!NILP (prompt)) | |
b7826503 | 9995 | CHECK_STRING (prompt); |
284f4730 JB |
9996 | QUIT; |
9997 | ||
d5eecefb RS |
9998 | specbind (Qinput_method_exit_on_first_char, |
9999 | (NILP (command_loop) ? Qt : Qnil)); | |
10000 | specbind (Qinput_method_use_echo_area, | |
10001 | (NILP (command_loop) ? Qt : Qnil)); | |
10002 | ||
72af86bd | 10003 | memset (keybuf, 0, sizeof keybuf); |
284f4730 JB |
10004 | GCPRO1 (keybuf[0]); |
10005 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10006 | ||
daa37602 | 10007 | if (NILP (continue_echo)) |
6321824f RS |
10008 | { |
10009 | this_command_key_count = 0; | |
63020c46 | 10010 | this_command_key_count_reset = 0; |
6321824f RS |
10011 | this_single_command_key_start = 0; |
10012 | } | |
c0a58692 | 10013 | |
d148e14d | 10014 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10015 | if (display_hourglass_p) |
10016 | cancel_hourglass (); | |
d0c48478 GM |
10017 | #endif |
10018 | ||
309b0fc8 | 10019 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 10020 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 10021 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 10022 | |
ae18aa3b | 10023 | #if 0 /* The following is fine for code reading a key sequence and |
f95c4fe5 | 10024 | then proceeding with a lenghty computation, but it's not good |
ae18aa3b | 10025 | for code reading keys in a loop, like an input method. */ |
d148e14d | 10026 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10027 | if (display_hourglass_p) |
10028 | start_hourglass (); | |
ae18aa3b | 10029 | #endif |
d0c48478 GM |
10030 | #endif |
10031 | ||
dcc408a0 RS |
10032 | if (i == -1) |
10033 | { | |
10034 | Vquit_flag = Qt; | |
10035 | QUIT; | |
10036 | } | |
284f4730 | 10037 | UNGCPRO; |
d5eecefb | 10038 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 10039 | } |
e39da3d7 RS |
10040 | |
10041 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 10042 | Sread_key_sequence_vector, 1, 5, 0, |
4707d2d0 | 10043 | doc: /* Like `read-key-sequence' but always return a vector. */) |
5842a27b | 10044 | (Lisp_Object prompt, Lisp_Object continue_echo, Lisp_Object dont_downcase_last, Lisp_Object can_return_switch_frame, Lisp_Object command_loop) |
e39da3d7 RS |
10045 | { |
10046 | Lisp_Object keybuf[30]; | |
10047 | register int i; | |
03cee6ae | 10048 | struct gcpro gcpro1; |
aed13378 | 10049 | int count = SPECPDL_INDEX (); |
e39da3d7 RS |
10050 | |
10051 | if (!NILP (prompt)) | |
b7826503 | 10052 | CHECK_STRING (prompt); |
e39da3d7 RS |
10053 | QUIT; |
10054 | ||
d5eecefb RS |
10055 | specbind (Qinput_method_exit_on_first_char, |
10056 | (NILP (command_loop) ? Qt : Qnil)); | |
10057 | specbind (Qinput_method_use_echo_area, | |
10058 | (NILP (command_loop) ? Qt : Qnil)); | |
10059 | ||
72af86bd | 10060 | memset (keybuf, 0, sizeof keybuf); |
e39da3d7 RS |
10061 | GCPRO1 (keybuf[0]); |
10062 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
10063 | ||
10064 | if (NILP (continue_echo)) | |
10065 | { | |
10066 | this_command_key_count = 0; | |
63020c46 | 10067 | this_command_key_count_reset = 0; |
e39da3d7 RS |
10068 | this_single_command_key_start = 0; |
10069 | } | |
10070 | ||
d148e14d | 10071 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10072 | if (display_hourglass_p) |
10073 | cancel_hourglass (); | |
d0c48478 GM |
10074 | #endif |
10075 | ||
e39da3d7 RS |
10076 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
10077 | prompt, ! NILP (dont_downcase_last), | |
10078 | ! NILP (can_return_switch_frame), 0); | |
10079 | ||
d148e14d | 10080 | #ifdef HAVE_WINDOW_SYSTEM |
526a058f GM |
10081 | if (display_hourglass_p) |
10082 | start_hourglass (); | |
d0c48478 GM |
10083 | #endif |
10084 | ||
e39da3d7 RS |
10085 | if (i == -1) |
10086 | { | |
10087 | Vquit_flag = Qt; | |
10088 | QUIT; | |
10089 | } | |
10090 | UNGCPRO; | |
d5eecefb | 10091 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 10092 | } |
284f4730 | 10093 | \f |
158f7532 | 10094 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
4707d2d0 PJ |
10095 | doc: /* Execute CMD as an editor command. |
10096 | CMD must be a symbol that satisfies the `commandp' predicate. | |
10097 | Optional second arg RECORD-FLAG non-nil | |
10098 | means unconditionally put this command in `command-history'. | |
10099 | Otherwise, that is done only if an arg is read using the minibuffer. | |
10100 | The argument KEYS specifies the value to use instead of (this-command-keys) | |
10101 | when reading the arguments; if it is nil, (this-command-keys) is used. | |
10102 | The argument SPECIAL, if non-nil, means that this command is executing | |
10103 | a special event, so ignore the prefix argument and don't clear it. */) | |
5842a27b | 10104 | (Lisp_Object cmd, Lisp_Object record_flag, Lisp_Object keys, Lisp_Object special) |
284f4730 JB |
10105 | { |
10106 | register Lisp_Object final; | |
10107 | register Lisp_Object tem; | |
10108 | Lisp_Object prefixarg; | |
284f4730 | 10109 | |
284f4730 JB |
10110 | debug_on_next_call = 0; |
10111 | ||
158f7532 RS |
10112 | if (NILP (special)) |
10113 | { | |
10114 | prefixarg = current_kboard->Vprefix_arg; | |
10115 | Vcurrent_prefix_arg = prefixarg; | |
10116 | current_kboard->Vprefix_arg = Qnil; | |
10117 | } | |
10118 | else | |
10119 | prefixarg = Qnil; | |
10120 | ||
8c18cbfb | 10121 | if (SYMBOLP (cmd)) |
284f4730 JB |
10122 | { |
10123 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 10124 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb | 10125 | { |
971e4c98 | 10126 | tem = Fsymbol_value (Qdisabled_command_function); |
b78ce8fb | 10127 | if (!NILP (tem)) |
971e4c98 | 10128 | return call1 (Vrun_hooks, Qdisabled_command_function); |
b78ce8fb | 10129 | } |
284f4730 JB |
10130 | } |
10131 | ||
01e26217 | 10132 | while (1) |
284f4730 | 10133 | { |
a7f96a35 | 10134 | final = Findirect_function (cmd, Qnil); |
284f4730 JB |
10135 | |
10136 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
10137 | { |
10138 | struct gcpro gcpro1, gcpro2; | |
10139 | ||
10140 | GCPRO2 (cmd, prefixarg); | |
10141 | do_autoload (final, cmd); | |
10142 | UNGCPRO; | |
10143 | } | |
284f4730 JB |
10144 | else |
10145 | break; | |
10146 | } | |
10147 | ||
8c18cbfb | 10148 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
10149 | { |
10150 | /* If requested, place the macro in the command history. For | |
10151 | other sorts of commands, call-interactively takes care of | |
10152 | this. */ | |
e57d8fd8 | 10153 | if (!NILP (record_flag)) |
f4385381 RS |
10154 | { |
10155 | Vcommand_history | |
10156 | = Fcons (Fcons (Qexecute_kbd_macro, | |
10157 | Fcons (final, Fcons (prefixarg, Qnil))), | |
10158 | Vcommand_history); | |
10159 | ||
10160 | /* Don't keep command history around forever. */ | |
10161 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
10162 | { | |
10163 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
10164 | if (CONSP (tem)) | |
f3fbd155 | 10165 | XSETCDR (tem, Qnil); |
f4385381 RS |
10166 | } |
10167 | } | |
284f4730 | 10168 | |
caa06051 | 10169 | return Fexecute_kbd_macro (final, prefixarg, Qnil); |
284f4730 | 10170 | } |
f4385381 | 10171 | |
8c18cbfb | 10172 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
6d0867e5 SM |
10173 | /* Don't call Fcall_interactively directly because we want to make |
10174 | sure the backtrace has an entry for `call-interactively'. | |
10175 | For the same reason, pass `cmd' rather than `final'. */ | |
10176 | return call3 (Qcall_interactively, cmd, record_flag, keys); | |
284f4730 | 10177 | |
284f4730 JB |
10178 | return Qnil; |
10179 | } | |
c970a760 GM |
10180 | |
10181 | ||
284f4730 | 10182 | \f |
284f4730 | 10183 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
4707d2d0 | 10184 | 1, 1, "P", |
dfb4bff5 EZ |
10185 | doc: /* Read function name, then read its arguments and call it. |
10186 | ||
10187 | To pass a numeric argument to the command you are invoking with, specify | |
10188 | the numeric argument to this command. | |
10189 | ||
10190 | Noninteractively, the argument PREFIXARG is the prefix argument to | |
10191 | give to the command you invoke, if it asks for an argument. */) | |
5842a27b | 10192 | (Lisp_Object prefixarg) |
284f4730 JB |
10193 | { |
10194 | Lisp_Object function; | |
41118bd3 | 10195 | EMACS_INT saved_last_point_position; |
2e1a49ad | 10196 | Lisp_Object saved_keys, saved_last_point_position_buffer; |
5434fce6 | 10197 | Lisp_Object bindings, value; |
2e1a49ad | 10198 | struct gcpro gcpro1, gcpro2, gcpro3; |
d148e14d | 10199 | #ifdef HAVE_WINDOW_SYSTEM |
7133b7ee | 10200 | /* The call to Fcompleting_read will start and cancel the hourglass, |
a25e44b2 JD |
10201 | but if the hourglass was already scheduled, this means that no |
10202 | hourglass will be shown for the actual M-x command itself. | |
10203 | So we restart it if it is already scheduled. Note that checking | |
10204 | hourglass_shown_p is not enough, normally the hourglass is not shown, | |
10205 | just scheduled to be shown. */ | |
10206 | int hstarted = hourglass_started (); | |
10207 | #endif | |
284f4730 | 10208 | |
b0f2a7bf KH |
10209 | saved_keys = Fvector (this_command_key_count, |
10210 | XVECTOR (this_command_keys)->contents); | |
2e1a49ad SM |
10211 | saved_last_point_position_buffer = last_point_position_buffer; |
10212 | saved_last_point_position = last_point_position; | |
2e1a49ad | 10213 | GCPRO3 (saved_keys, prefixarg, saved_last_point_position_buffer); |
284f4730 | 10214 | |
7133b7ee | 10215 | function = call0 (intern ("read-extended-command")); |
284f4730 | 10216 | |
d148e14d | 10217 | #ifdef HAVE_WINDOW_SYSTEM |
a25e44b2 JD |
10218 | if (hstarted) start_hourglass (); |
10219 | #endif | |
10220 | ||
d5db4077 | 10221 | if (STRINGP (function) && SCHARS (function) == 0) |
1f5b1641 RS |
10222 | error ("No command name given"); |
10223 | ||
1113d9db JB |
10224 | /* Set this_command_keys to the concatenation of saved_keys and |
10225 | function, followed by a RET. */ | |
284f4730 | 10226 | { |
b0f2a7bf | 10227 | Lisp_Object *keys; |
284f4730 | 10228 | int i; |
284f4730 | 10229 | |
1113d9db | 10230 | this_command_key_count = 0; |
63020c46 | 10231 | this_command_key_count_reset = 0; |
6321824f | 10232 | this_single_command_key_start = 0; |
1113d9db | 10233 | |
b0f2a7bf KH |
10234 | keys = XVECTOR (saved_keys)->contents; |
10235 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
10236 | add_command_key (keys[i]); | |
1113d9db | 10237 | |
1b049b51 | 10238 | for (i = 0; i < SCHARS (function); i++) |
301738ed | 10239 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 10240 | |
301738ed | 10241 | add_command_key (make_number ('\015')); |
284f4730 JB |
10242 | } |
10243 | ||
2e1a49ad SM |
10244 | last_point_position = saved_last_point_position; |
10245 | last_point_position_buffer = saved_last_point_position_buffer; | |
10246 | ||
284f4730 JB |
10247 | UNGCPRO; |
10248 | ||
0a7f1fc0 | 10249 | function = Fintern (function, Qnil); |
d8bcf58e | 10250 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
10251 | Vthis_command = function; |
10252 | real_this_command = function; | |
284f4730 | 10253 | |
6526ab49 RS |
10254 | /* If enabled, show which key runs this command. */ |
10255 | if (!NILP (Vsuggest_key_bindings) | |
ce0d2858 | 10256 | && NILP (Vexecuting_kbd_macro) |
6526ab49 | 10257 | && SYMBOLP (function)) |
5434fce6 | 10258 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8b9940e6 | 10259 | Qt, Qnil, Qnil); |
5434fce6 RS |
10260 | else |
10261 | bindings = Qnil; | |
6526ab49 | 10262 | |
5434fce6 | 10263 | value = Qnil; |
6d0867e5 | 10264 | GCPRO3 (bindings, value, function); |
5434fce6 | 10265 | value = Fcommand_execute (function, Qt, Qnil, Qnil); |
6526ab49 | 10266 | |
5434fce6 | 10267 | /* If the command has a key binding, print it now. */ |
3ababa60 | 10268 | if (!NILP (bindings) |
ee112567 KH |
10269 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
10270 | Qmouse_movement))) | |
5434fce6 RS |
10271 | { |
10272 | /* But first wait, and skip the message if there is input. */ | |
7ba07a1a CY |
10273 | Lisp_Object waited; |
10274 | ||
666dc232 KS |
10275 | /* If this command displayed something in the echo area; |
10276 | wait a few seconds, then display our suggestion message. */ | |
10277 | if (NILP (echo_area_buffer[0])) | |
10278 | waited = sit_for (make_number (0), 0, 2); | |
10279 | else if (NUMBERP (Vsuggest_key_bindings)) | |
2bcac766 | 10280 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
426939cc | 10281 | else |
666dc232 | 10282 | waited = sit_for (make_number (2), 0, 2); |
426939cc | 10283 | |
7ba07a1a | 10284 | if (!NILP (waited) && ! CONSP (Vunread_command_events)) |
6526ab49 | 10285 | { |
5434fce6 RS |
10286 | Lisp_Object binding; |
10287 | char *newmessage; | |
985f9f66 | 10288 | int message_p = push_message (); |
331379bf | 10289 | int count = SPECPDL_INDEX (); |
5434fce6 | 10290 | |
65efd7da | 10291 | record_unwind_protect (pop_message_unwind, Qnil); |
a1bfe073 | 10292 | binding = Fkey_description (bindings, Qnil); |
5434fce6 RS |
10293 | |
10294 | newmessage | |
d5db4077 KR |
10295 | = (char *) alloca (SCHARS (SYMBOL_NAME (function)) |
10296 | + SBYTES (binding) | |
5434fce6 | 10297 | + 100); |
3ababa60 | 10298 | sprintf (newmessage, "You can run the command `%s' with %s", |
d5db4077 KR |
10299 | SDATA (SYMBOL_NAME (function)), |
10300 | SDATA (binding)); | |
301738ed RS |
10301 | message2_nolog (newmessage, |
10302 | strlen (newmessage), | |
10303 | STRING_MULTIBYTE (binding)); | |
7ba07a1a | 10304 | if (NUMBERP (Vsuggest_key_bindings)) |
666dc232 | 10305 | waited = sit_for (Vsuggest_key_bindings, 0, 2); |
7ba07a1a | 10306 | else |
666dc232 | 10307 | waited = sit_for (make_number (2), 0, 2); |
7ba07a1a CY |
10308 | |
10309 | if (!NILP (waited) && message_p) | |
985f9f66 GM |
10310 | restore_message (); |
10311 | ||
c970a760 | 10312 | unbind_to (count, Qnil); |
6526ab49 RS |
10313 | } |
10314 | } | |
10315 | ||
5434fce6 | 10316 | RETURN_UNGCPRO (value); |
284f4730 | 10317 | } |
6526ab49 | 10318 | |
284f4730 | 10319 | \f |
d9d4c147 | 10320 | /* Return nonzero if input events are pending. */ |
284f4730 | 10321 | |
dfcf069d | 10322 | int |
d3da34e0 | 10323 | detect_input_pending (void) |
284f4730 JB |
10324 | { |
10325 | if (!input_pending) | |
d9d4c147 KH |
10326 | get_input_pending (&input_pending, 0); |
10327 | ||
10328 | return input_pending; | |
10329 | } | |
10330 | ||
a2d5fca0 JD |
10331 | /* Return nonzero if input events other than mouse movements are |
10332 | pending. */ | |
10333 | ||
10334 | int | |
d3da34e0 | 10335 | detect_input_pending_ignore_squeezables (void) |
a2d5fca0 JD |
10336 | { |
10337 | if (!input_pending) | |
10338 | get_input_pending (&input_pending, READABLE_EVENTS_IGNORE_SQUEEZABLES); | |
10339 | ||
10340 | return input_pending; | |
10341 | } | |
10342 | ||
b1878f45 | 10343 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 10344 | |
dfcf069d | 10345 | int |
d3da34e0 | 10346 | detect_input_pending_run_timers (int do_display) |
d9d4c147 | 10347 | { |
87dd9b9b RS |
10348 | int old_timers_run = timers_run; |
10349 | ||
d9d4c147 | 10350 | if (!input_pending) |
a2d5fca0 | 10351 | get_input_pending (&input_pending, READABLE_EVENTS_DO_TIMERS_NOW); |
284f4730 | 10352 | |
87dd9b9b | 10353 | if (old_timers_run != timers_run && do_display) |
7ee32cda | 10354 | { |
3007ebfb | 10355 | redisplay_preserve_echo_area (8); |
7ee32cda GM |
10356 | /* The following fixes a bug when using lazy-lock with |
10357 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
10358 | from an idle timer function. The symptom of the bug is that | |
10359 | the cursor sometimes doesn't become visible until the next X | |
10360 | event is processed. --gerd. */ | |
fa971ac3 KL |
10361 | { |
10362 | Lisp_Object tail, frame; | |
10363 | FOR_EACH_FRAME (tail, frame) | |
10364 | if (FRAME_RIF (XFRAME (frame))) | |
10365 | FRAME_RIF (XFRAME (frame))->flush_display (XFRAME (frame)); | |
10366 | } | |
7ee32cda | 10367 | } |
87dd9b9b | 10368 | |
284f4730 JB |
10369 | return input_pending; |
10370 | } | |
10371 | ||
ffd56f97 JB |
10372 | /* This is called in some cases before a possible quit. |
10373 | It cases the next call to detect_input_pending to recompute input_pending. | |
10374 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
10375 | |
10376 | void | |
d3da34e0 | 10377 | clear_input_pending (void) |
ffd56f97 JB |
10378 | { |
10379 | input_pending = 0; | |
10380 | } | |
10381 | ||
b1878f45 | 10382 | /* Return nonzero if there are pending requeued events. |
d64b707c | 10383 | This isn't used yet. The hope is to make wait_reading_process_output |
27fd22dc | 10384 | call it, and return if it runs Lisp code that unreads something. |
b1878f45 RS |
10385 | The problem is, kbd_buffer_get_event needs to be fixed to know what |
10386 | to do in that case. It isn't trivial. */ | |
10387 | ||
dfcf069d | 10388 | int |
d3da34e0 | 10389 | requeued_events_pending_p (void) |
b1878f45 RS |
10390 | { |
10391 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
10392 | } | |
10393 | ||
10394 | ||
284f4730 | 10395 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
a064684d RS |
10396 | doc: /* Return t if command input is currently available with no wait. |
10397 | Actually, the value is nil only if we can be sure that no input is available; | |
10398 | if there is a doubt, the value is t. */) | |
5842a27b | 10399 | (void) |
284f4730 | 10400 | { |
182f67de KS |
10401 | if (!NILP (Vunread_command_events) || unread_command_char != -1 |
10402 | || !NILP (Vunread_post_input_method_events) | |
10403 | || !NILP (Vunread_input_method_events)) | |
284f4730 JB |
10404 | return (Qt); |
10405 | ||
a2d5fca0 JD |
10406 | get_input_pending (&input_pending, |
10407 | READABLE_EVENTS_DO_TIMERS_NOW | |
10408 | | READABLE_EVENTS_FILTER_EVENTS); | |
d9d4c147 | 10409 | return input_pending > 0 ? Qt : Qnil; |
284f4730 JB |
10410 | } |
10411 | ||
10412 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
0721f230 | 10413 | doc: /* Return vector of last 300 events, not counting those from keyboard macros. */) |
5842a27b | 10414 | (void) |
284f4730 | 10415 | { |
5160df46 | 10416 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
10417 | Lisp_Object val; |
10418 | ||
10419 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 10420 | return Fvector (total_keys, keys); |
284f4730 JB |
10421 | else |
10422 | { | |
5160df46 | 10423 | val = Fvector (NUM_RECENT_KEYS, keys); |
72af86bd AS |
10424 | memcpy (XVECTOR (val)->contents, keys + recent_keys_index, |
10425 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
10426 | memcpy (XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, | |
10427 | keys, recent_keys_index * sizeof (Lisp_Object)); | |
284f4730 JB |
10428 | return val; |
10429 | } | |
10430 | } | |
10431 | ||
10432 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
4707d2d0 | 10433 | doc: /* Return the key sequence that invoked this command. |
92501652 | 10434 | However, if the command has called `read-key-sequence', it returns |
4052e7bb | 10435 | the last key sequence that has been read. |
65849ada EZ |
10436 | The value is a string or a vector. |
10437 | ||
10438 | See also `this-command-keys-vector'. */) | |
5842a27b | 10439 | (void) |
284f4730 | 10440 | { |
86e5706b RS |
10441 | return make_event_array (this_command_key_count, |
10442 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
10443 | } |
10444 | ||
e39da3d7 | 10445 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
92501652 RS |
10446 | doc: /* Return the key sequence that invoked this command, as a vector. |
10447 | However, if the command has called `read-key-sequence', it returns | |
65849ada EZ |
10448 | the last key sequence that has been read. |
10449 | ||
10450 | See also `this-command-keys'. */) | |
5842a27b | 10451 | (void) |
e39da3d7 RS |
10452 | { |
10453 | return Fvector (this_command_key_count, | |
10454 | XVECTOR (this_command_keys)->contents); | |
10455 | } | |
10456 | ||
6321824f RS |
10457 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
10458 | Sthis_single_command_keys, 0, 0, 0, | |
4707d2d0 | 10459 | doc: /* Return the key sequence that invoked this command. |
92501652 RS |
10460 | More generally, it returns the last key sequence read, either by |
10461 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10462 | Unlike `this-command-keys', this function's value |
10463 | does not include prefix arguments. | |
10464 | The value is always a vector. */) | |
5842a27b | 10465 | (void) |
6321824f | 10466 | { |
e39da3d7 RS |
10467 | return Fvector (this_command_key_count |
10468 | - this_single_command_key_start, | |
10469 | (XVECTOR (this_command_keys)->contents | |
10470 | + this_single_command_key_start)); | |
6321824f RS |
10471 | } |
10472 | ||
7d18f9ae RS |
10473 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
10474 | Sthis_single_command_raw_keys, 0, 0, 0, | |
4707d2d0 | 10475 | doc: /* Return the raw events that were read for this command. |
92501652 RS |
10476 | More generally, it returns the last key sequence read, either by |
10477 | the command loop or by `read-key-sequence'. | |
4707d2d0 PJ |
10478 | Unlike `this-single-command-keys', this function's value |
10479 | shows the events before all translations (except for input methods). | |
10480 | The value is always a vector. */) | |
5842a27b | 10481 | (void) |
7d18f9ae RS |
10482 | { |
10483 | return Fvector (raw_keybuf_count, | |
10484 | (XVECTOR (raw_keybuf)->contents)); | |
10485 | } | |
10486 | ||
71918b75 | 10487 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
4707d2d0 | 10488 | Sreset_this_command_lengths, 0, 0, 0, |
63020c46 RS |
10489 | doc: /* Make the unread events replace the last command and echo. |
10490 | Used in `universal-argument-other-key'. | |
4707d2d0 PJ |
10491 | |
10492 | `universal-argument-other-key' rereads the event just typed. | |
10493 | It then gets translated through `function-key-map'. | |
63020c46 RS |
10494 | The translated event has to replace the real events, |
10495 | both in the value of (this-command-keys) and in echoing. | |
10496 | To achieve this, `universal-argument-other-key' calls | |
10497 | `reset-this-command-lengths', which discards the record of reading | |
10498 | these events the first time. */) | |
5842a27b | 10499 | (void) |
71918b75 | 10500 | { |
22b94eeb RS |
10501 | this_command_key_count = before_command_key_count; |
10502 | if (this_command_key_count < this_single_command_key_start) | |
10503 | this_single_command_key_start = this_command_key_count; | |
63020c46 | 10504 | |
22b94eeb RS |
10505 | echo_truncate (before_command_echo_length); |
10506 | ||
63020c46 RS |
10507 | /* Cause whatever we put into unread-command-events |
10508 | to echo as if it were being freshly read from the keyboard. */ | |
10509 | this_command_key_count_reset = 1; | |
10510 | ||
6e5742a0 | 10511 | return Qnil; |
71918b75 RS |
10512 | } |
10513 | ||
82e6e5af | 10514 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
ab1959fc | 10515 | Sclear_this_command_keys, 0, 1, 0, |
4707d2d0 | 10516 | doc: /* Clear out the vector that `this-command-keys' returns. |
ab1959fc KS |
10517 | Also clear the record of the last 100 events, unless optional arg |
10518 | KEEP-RECORD is non-nil. */) | |
5842a27b | 10519 | (Lisp_Object keep_record) |
82e6e5af | 10520 | { |
fb0dde6c | 10521 | int i; |
c60ee5e7 | 10522 | |
82e6e5af | 10523 | this_command_key_count = 0; |
63020c46 | 10524 | this_command_key_count_reset = 0; |
fb0dde6c | 10525 | |
ab1959fc KS |
10526 | if (NILP (keep_record)) |
10527 | { | |
10528 | for (i = 0; i < XVECTOR (recent_keys)->size; ++i) | |
10529 | XVECTOR (recent_keys)->contents[i] = Qnil; | |
10530 | total_keys = 0; | |
10531 | recent_keys_index = 0; | |
10532 | } | |
82e6e5af RS |
10533 | return Qnil; |
10534 | } | |
10535 | ||
284f4730 | 10536 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
4707d2d0 | 10537 | doc: /* Return the current depth in recursive edits. */) |
5842a27b | 10538 | (void) |
284f4730 JB |
10539 | { |
10540 | Lisp_Object temp; | |
bb9e9bed | 10541 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
10542 | return temp; |
10543 | } | |
10544 | ||
10545 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
4707d2d0 PJ |
10546 | "FOpen dribble file: ", |
10547 | doc: /* Start writing all keyboard characters to a dribble file called FILE. | |
10548 | If FILE is nil, close any open dribble file. */) | |
5842a27b | 10549 | (Lisp_Object file) |
284f4730 | 10550 | { |
6cb52def | 10551 | if (dribble) |
284f4730 | 10552 | { |
34f5c10f | 10553 | BLOCK_INPUT; |
6cb52def | 10554 | fclose (dribble); |
34f5c10f | 10555 | UNBLOCK_INPUT; |
6cb52def | 10556 | dribble = 0; |
284f4730 | 10557 | } |
6cb52def | 10558 | if (!NILP (file)) |
284f4730 JB |
10559 | { |
10560 | file = Fexpand_file_name (file, Qnil); | |
d5db4077 | 10561 | dribble = fopen (SDATA (file), "w"); |
ab6ca1de KH |
10562 | if (dribble == 0) |
10563 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
10564 | } |
10565 | return Qnil; | |
10566 | } | |
10567 | ||
10568 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
4707d2d0 | 10569 | doc: /* Discard the contents of the terminal input buffer. |
2b17d5ed | 10570 | Also end any kbd macro being defined. */) |
5842a27b | 10571 | (void) |
284f4730 | 10572 | { |
2b17d5ed KS |
10573 | if (!NILP (current_kboard->defining_kbd_macro)) |
10574 | { | |
10575 | /* Discard the last command from the macro. */ | |
10576 | Fcancel_kbd_macro_events (); | |
10577 | end_kbd_macro (); | |
10578 | } | |
10579 | ||
284f4730 JB |
10580 | update_mode_lines++; |
10581 | ||
24597608 | 10582 | Vunread_command_events = Qnil; |
86e5706b | 10583 | unread_command_char = -1; |
284f4730 JB |
10584 | |
10585 | discard_tty_input (); | |
10586 | ||
7ee32cda | 10587 | kbd_fetch_ptr = kbd_store_ptr; |
284f4730 JB |
10588 | input_pending = 0; |
10589 | ||
10590 | return Qnil; | |
10591 | } | |
10592 | \f | |
10593 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
4707d2d0 PJ |
10594 | doc: /* Stop Emacs and return to superior process. You can resume later. |
10595 | If `cannot-suspend' is non-nil, or if the system doesn't support job | |
10596 | control, run a subshell instead. | |
10597 | ||
10598 | If optional arg STUFFSTRING is non-nil, its characters are stuffed | |
10599 | to be read as terminal input by Emacs's parent, after suspension. | |
10600 | ||
10601 | Before suspending, run the normal hook `suspend-hook'. | |
10602 | After resumption run the normal hook `suspend-resume-hook'. | |
10603 | ||
10604 | Some operating systems cannot stop the Emacs process and resume it later. | |
10605 | On such systems, Emacs starts a subshell instead of suspending. */) | |
5842a27b | 10606 | (Lisp_Object stuffstring) |
284f4730 | 10607 | { |
aed13378 | 10608 | int count = SPECPDL_INDEX (); |
284f4730 JB |
10609 | int old_height, old_width; |
10610 | int width, height; | |
03cee6ae | 10611 | struct gcpro gcpro1; |
284f4730 | 10612 | |
9628b887 | 10613 | if (tty_list && tty_list->next) |
4a933ef8 | 10614 | error ("There are other tty frames open; close them before suspending Emacs"); |
3b7fbceb | 10615 | |
284f4730 | 10616 | if (!NILP (stuffstring)) |
b7826503 | 10617 | CHECK_STRING (stuffstring); |
284f4730 | 10618 | |
1e95ed28 JB |
10619 | /* Run the functions in suspend-hook. */ |
10620 | if (!NILP (Vrun_hooks)) | |
10621 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 10622 | |
b7d2ebbf | 10623 | GCPRO1 (stuffstring); |
0b0d3e0b | 10624 | get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height); |
28d440ab | 10625 | reset_all_sys_modes (); |
284f4730 JB |
10626 | /* sys_suspend can get an error if it tries to fork a subshell |
10627 | and the system resources aren't available for that. */ | |
f57e2426 | 10628 | record_unwind_protect ((Lisp_Object (*) (Lisp_Object)) init_all_sys_modes, |
d52a7a92 | 10629 | Qnil); |
284f4730 | 10630 | stuff_buffered_input (stuffstring); |
8026024c KH |
10631 | if (cannot_suspend) |
10632 | sys_subshell (); | |
10633 | else | |
10634 | sys_suspend (); | |
284f4730 JB |
10635 | unbind_to (count, Qnil); |
10636 | ||
10637 | /* Check if terminal/window size has changed. | |
10638 | Note that this is not useful when we are running directly | |
10639 | with a window system; but suspend should be disabled in that case. */ | |
0b0d3e0b | 10640 | get_tty_size (fileno (CURTTY ()->input), &width, &height); |
284f4730 | 10641 | if (width != old_width || height != old_height) |
788f89eb | 10642 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 10643 | |
1e95ed28 | 10644 | /* Run suspend-resume-hook. */ |
284f4730 JB |
10645 | if (!NILP (Vrun_hooks)) |
10646 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 10647 | |
284f4730 JB |
10648 | UNGCPRO; |
10649 | return Qnil; | |
10650 | } | |
10651 | ||
10652 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 10653 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 10654 | |
07a59269 | 10655 | void |
d3da34e0 | 10656 | stuff_buffered_input (Lisp_Object stuffstring) |
284f4730 | 10657 | { |
0c1c1b93 | 10658 | #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */ |
612b78ef | 10659 | register unsigned char *p; |
612b78ef | 10660 | |
8c18cbfb | 10661 | if (STRINGP (stuffstring)) |
284f4730 | 10662 | { |
41118bd3 | 10663 | register EMACS_INT count; |
284f4730 | 10664 | |
d5db4077 KR |
10665 | p = SDATA (stuffstring); |
10666 | count = SBYTES (stuffstring); | |
284f4730 JB |
10667 | while (count-- > 0) |
10668 | stuff_char (*p++); | |
10669 | stuff_char ('\n'); | |
10670 | } | |
c60ee5e7 | 10671 | |
284f4730 | 10672 | /* Anything we have read ahead, put back for the shell to read. */ |
beecf6a1 | 10673 | /* ?? What should this do when we have multiple keyboards?? |
0c1c1b93 | 10674 | Should we ignore anything that was typed in at the "wrong" kboard? |
26503ad2 | 10675 | |
0c1c1b93 RS |
10676 | rms: we should stuff everything back into the kboard |
10677 | it came from. */ | |
beecf6a1 | 10678 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 10679 | { |
c60ee5e7 | 10680 | |
beecf6a1 KH |
10681 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
10682 | kbd_fetch_ptr = kbd_buffer; | |
3b8f9651 | 10683 | if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT) |
beecf6a1 | 10684 | stuff_char (kbd_fetch_ptr->code); |
c60ee5e7 | 10685 | |
6b61353c | 10686 | clear_event (kbd_fetch_ptr); |
284f4730 | 10687 | } |
c60ee5e7 | 10688 | |
284f4730 | 10689 | input_pending = 0; |
0c1c1b93 | 10690 | #endif /* SIGTSTP */ |
284f4730 JB |
10691 | } |
10692 | \f | |
dfcf069d | 10693 | void |
d3da34e0 | 10694 | set_waiting_for_input (struct timeval *time_to_clear) |
284f4730 | 10695 | { |
ffd56f97 | 10696 | input_available_clear_time = time_to_clear; |
284f4730 | 10697 | |
114a8b8c | 10698 | /* Tell handle_interrupt to throw back to read_char, */ |
284f4730 JB |
10699 | waiting_for_input = 1; |
10700 | ||
114a8b8c | 10701 | /* If handle_interrupt was called before and buffered a C-g, |
284f4730 JB |
10702 | make it run again now, to avoid timing error. */ |
10703 | if (!NILP (Vquit_flag)) | |
10704 | quit_throw_to_read_char (); | |
284f4730 JB |
10705 | } |
10706 | ||
07a59269 | 10707 | void |
d3da34e0 | 10708 | clear_waiting_for_input (void) |
284f4730 | 10709 | { |
114a8b8c | 10710 | /* Tell handle_interrupt not to throw back to read_char, */ |
284f4730 | 10711 | waiting_for_input = 0; |
ffd56f97 | 10712 | input_available_clear_time = 0; |
284f4730 JB |
10713 | } |
10714 | ||
da8e1115 | 10715 | /* The SIGINT handler. |
284f4730 | 10716 | |
e72cf5ee KL |
10717 | If we have a frame on the controlling tty, we assume that the |
10718 | SIGINT was generated by C-g, so we call handle_interrupt. | |
10719 | Otherwise, the handler kills Emacs. */ | |
284f4730 | 10720 | |
14e40288 | 10721 | static SIGTYPE |
d3da34e0 JB |
10722 | interrupt_signal (int signalnum) /* If we don't have an argument, some */ |
10723 | /* compilers complain in signal calls. */ | |
284f4730 | 10724 | { |
284f4730 JB |
10725 | /* Must preserve main program's value of errno. */ |
10726 | int old_errno = errno; | |
6ed8eeff | 10727 | struct terminal *terminal; |
284f4730 | 10728 | |
333f1b6f | 10729 | SIGNAL_THREAD_CHECK (signalnum); |
e72cf5ee | 10730 | |
6ed8eeff | 10731 | /* See if we have an active terminal on our controlling tty. */ |
fdf5ebde | 10732 | terminal = get_named_tty ("/dev/tty"); |
6ed8eeff | 10733 | if (!terminal) |
3224dac1 | 10734 | { |
4ca927b4 KL |
10735 | /* If there are no frames there, let's pretend that we are a |
10736 | well-behaving UN*X program and quit. */ | |
b3e6f69c | 10737 | Fkill_emacs (Qnil); |
3224dac1 | 10738 | } |
4ca927b4 KL |
10739 | else |
10740 | { | |
10741 | /* Otherwise, the SIGINT was probably generated by C-g. */ | |
3b7fbceb | 10742 | |
4ca927b4 KL |
10743 | /* Set internal_last_event_frame to the top frame of the |
10744 | controlling tty, if we have a frame there. We disable the | |
10745 | interrupt key on secondary ttys, so the SIGINT must have come | |
10746 | from the controlling tty. */ | |
6ed8eeff | 10747 | internal_last_event_frame = terminal->display_info.tty->top_frame; |
4ca927b4 KL |
10748 | |
10749 | handle_interrupt (); | |
4ca927b4 | 10750 | } |
114a8b8c KL |
10751 | |
10752 | errno = old_errno; | |
10753 | } | |
10754 | ||
da8e1115 | 10755 | /* This routine is called at interrupt level in response to C-g. |
3b7fbceb | 10756 | |
da8e1115 KL |
10757 | It is called from the SIGINT handler or kbd_buffer_store_event. |
10758 | ||
10759 | If `waiting_for_input' is non zero, then unless `echoing' is | |
10760 | nonzero, immediately throw back to read_char. | |
10761 | ||
10762 | Otherwise it sets the Lisp variable quit-flag not-nil. This causes | |
10763 | eval to throw, when it gets a chance. If quit-flag is already | |
10764 | non-nil, it stops the job right away. */ | |
114a8b8c | 10765 | |
114a8b8c | 10766 | static void |
d3da34e0 | 10767 | handle_interrupt (void) |
114a8b8c | 10768 | { |
3b7fbceb | 10769 | char c; |
114a8b8c | 10770 | |
284f4730 JB |
10771 | cancel_echoing (); |
10772 | ||
3224dac1 | 10773 | /* XXX This code needs to be revised for multi-tty support. */ |
d44004c0 | 10774 | if (!NILP (Vquit_flag) && get_named_tty ("/dev/tty")) |
284f4730 | 10775 | { |
31e4e97b EZ |
10776 | /* If SIGINT isn't blocked, don't let us be interrupted by |
10777 | another SIGINT, it might be harmful due to non-reentrancy | |
10778 | in I/O functions. */ | |
10779 | sigblock (sigmask (SIGINT)); | |
10780 | ||
284f4730 | 10781 | fflush (stdout); |
28d440ab | 10782 | reset_all_sys_modes (); |
31e4e97b | 10783 | |
284f4730 JB |
10784 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
10785 | /* | |
10786 | * On systems which can suspend the current process and return to the original | |
10787 | * shell, this command causes the user to end up back at the shell. | |
10788 | * The "Auto-save" and "Abort" questions are not asked until | |
10789 | * the user elects to return to emacs, at which point he can save the current | |
10790 | * job and either dump core or continue. | |
10791 | */ | |
10792 | sys_suspend (); | |
10793 | #else | |
284f4730 JB |
10794 | /* Perhaps should really fork an inferior shell? |
10795 | But that would not provide any way to get back | |
10796 | to the original shell, ever. */ | |
10797 | printf ("No support for stopping a process on this operating system;\n"); | |
10798 | printf ("you can continue or abort.\n"); | |
284f4730 | 10799 | #endif /* not SIGTSTP */ |
80e4aa30 RS |
10800 | #ifdef MSDOS |
10801 | /* We must remain inside the screen area when the internal terminal | |
10802 | is used. Note that [Enter] is not echoed by dos. */ | |
cb22456d | 10803 | cursor_to (SELECTED_FRAME (), 0, 0); |
80e4aa30 | 10804 | #endif |
118d6ca9 RS |
10805 | /* It doesn't work to autosave while GC is in progress; |
10806 | the code used for auto-saving doesn't cope with the mark bit. */ | |
10807 | if (!gc_in_progress) | |
9fd7d808 | 10808 | { |
118d6ca9 RS |
10809 | printf ("Auto-save? (y or n) "); |
10810 | fflush (stdout); | |
10811 | if (((c = getchar ()) & ~040) == 'Y') | |
10812 | { | |
10813 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 10814 | #ifdef MSDOS |
118d6ca9 | 10815 | printf ("\r\nAuto-save done"); |
80e4aa30 | 10816 | #else /* not MSDOS */ |
118d6ca9 | 10817 | printf ("Auto-save done\n"); |
80e4aa30 | 10818 | #endif /* not MSDOS */ |
118d6ca9 RS |
10819 | } |
10820 | while (c != '\n') c = getchar (); | |
9fd7d808 | 10821 | } |
c60ee5e7 | 10822 | else |
118d6ca9 RS |
10823 | { |
10824 | /* During GC, it must be safe to reenable quitting again. */ | |
10825 | Vinhibit_quit = Qnil; | |
10826 | #ifdef MSDOS | |
10827 | printf ("\r\n"); | |
10828 | #endif /* not MSDOS */ | |
10829 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
10830 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
10831 | fflush (stdout); | |
10832 | } | |
10833 | ||
80e4aa30 RS |
10834 | #ifdef MSDOS |
10835 | printf ("\r\nAbort? (y or n) "); | |
10836 | #else /* not MSDOS */ | |
284f4730 | 10837 | printf ("Abort (and dump core)? (y or n) "); |
80e4aa30 | 10838 | #endif /* not MSDOS */ |
284f4730 JB |
10839 | fflush (stdout); |
10840 | if (((c = getchar ()) & ~040) == 'Y') | |
10841 | abort (); | |
10842 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
10843 | #ifdef MSDOS |
10844 | printf ("\r\nContinuing...\r\n"); | |
10845 | #else /* not MSDOS */ | |
284f4730 | 10846 | printf ("Continuing...\n"); |
80e4aa30 | 10847 | #endif /* not MSDOS */ |
284f4730 | 10848 | fflush (stdout); |
28d440ab | 10849 | init_all_sys_modes (); |
31e4e97b | 10850 | sigfree (); |
284f4730 JB |
10851 | } |
10852 | else | |
10853 | { | |
10854 | /* If executing a function that wants to be interrupted out of | |
10855 | and the user has not deferred quitting by binding `inhibit-quit' | |
10856 | then quit right away. */ | |
10857 | if (immediate_quit && NILP (Vinhibit_quit)) | |
10858 | { | |
e39da3d7 RS |
10859 | struct gl_state_s saved; |
10860 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
10861 | ||
284f4730 JB |
10862 | immediate_quit = 0; |
10863 | sigfree (); | |
e39da3d7 RS |
10864 | saved = gl_state; |
10865 | GCPRO4 (saved.object, saved.global_code, | |
10866 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 10867 | Fsignal (Qquit, Qnil); |
d48cd3f4 | 10868 | /* FIXME: AFAIK, `quit' can never return, so this code is dead! */ |
e39da3d7 RS |
10869 | gl_state = saved; |
10870 | UNGCPRO; | |
284f4730 JB |
10871 | } |
10872 | else | |
10873 | /* Else request quit when it's safe */ | |
10874 | Vquit_flag = Qt; | |
10875 | } | |
10876 | ||
8ad093db AR |
10877 | /* TODO: The longjmp in this call throws the NS event loop integration off, |
10878 | and it seems to do fine without this. Probably some attention | |
10879 | needs to be paid to the setting of waiting_for_input in | |
10880 | wait_reading_process_output() under HAVE_NS because of the call | |
10881 | to ns_select there (needed because otherwise events aren't picked up | |
10882 | outside of polling since we don't get SIGIO like X and we don't have a | |
10883 | separate event loop thread like W32. */ | |
10884 | #ifndef HAVE_NS | |
284f4730 | 10885 | if (waiting_for_input && !echoing) |
4ca927b4 | 10886 | quit_throw_to_read_char (); |
8ad093db | 10887 | #endif |
284f4730 JB |
10888 | } |
10889 | ||
10890 | /* Handle a C-g by making read_char return C-g. */ | |
10891 | ||
07a59269 | 10892 | void |
d3da34e0 | 10893 | quit_throw_to_read_char (void) |
284f4730 | 10894 | { |
284f4730 JB |
10895 | sigfree (); |
10896 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 10897 | clear_waiting_for_input (); |
284f4730 JB |
10898 | input_pending = 0; |
10899 | ||
24597608 | 10900 | Vunread_command_events = Qnil; |
86e5706b | 10901 | unread_command_char = -1; |
284f4730 | 10902 | |
087feab3 RS |
10903 | #if 0 /* Currently, sit_for is called from read_char without turning |
10904 | off polling. And that can call set_waiting_for_input. | |
10905 | It seems to be harmless. */ | |
e6b01c14 JB |
10906 | #ifdef POLL_FOR_INPUT |
10907 | /* May be > 1 if in recursive minibuffer. */ | |
10908 | if (poll_suppress_count == 0) | |
10909 | abort (); | |
10910 | #endif | |
087feab3 | 10911 | #endif |
4c52b668 | 10912 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 10913 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf | 10914 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
e630dfc6 | 10915 | 0, 0, Qnil); |
e6b01c14 | 10916 | |
284f4730 JB |
10917 | _longjmp (getcjmp, 1); |
10918 | } | |
10919 | \f | |
a712a8c3 KL |
10920 | DEFUN ("set-input-interrupt-mode", Fset_input_interrupt_mode, Sset_input_interrupt_mode, 1, 1, 0, |
10921 | doc: /* Set interrupt mode of reading keyboard input. | |
10922 | If INTERRUPT is non-nil, Emacs will use input interrupts; | |
10923 | otherwise Emacs uses CBREAK mode. | |
10924 | ||
4707d2d0 | 10925 | See also `current-input-mode'. */) |
5842a27b | 10926 | (Lisp_Object interrupt) |
284f4730 | 10927 | { |
a712a8c3 | 10928 | int new_interrupt_input; |
284f4730 JB |
10929 | #ifdef SIGIO |
10930 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
4beb2d71 | 10931 | #ifdef HAVE_X_WINDOWS |
6bbba5a6 | 10932 | if (x_display_list != NULL) |
9a0f60bb KH |
10933 | { |
10934 | /* When using X, don't give the user a real choice, | |
10935 | because we haven't implemented the mechanisms to support it. */ | |
a712a8c3 | 10936 | new_interrupt_input = 1; |
9a0f60bb KH |
10937 | } |
10938 | else | |
8ad093db | 10939 | #endif /* HAVE_X_WINDOWS */ |
a712a8c3 | 10940 | new_interrupt_input = !NILP (interrupt); |
284f4730 | 10941 | #else /* not SIGIO */ |
a712a8c3 | 10942 | new_interrupt_input = 0; |
284f4730 | 10943 | #endif /* not SIGIO */ |
9a0f60bb | 10944 | |
033b73e2 | 10945 | if (new_interrupt_input != interrupt_input) |
a712a8c3 KL |
10946 | { |
10947 | #ifdef POLL_FOR_INPUT | |
10948 | stop_polling (); | |
10949 | #endif | |
10950 | #ifndef DOS_NT | |
10951 | /* this causes startup screen to be restored and messes with the mouse */ | |
10952 | reset_all_sys_modes (); | |
a712a8c3 | 10953 | interrupt_input = new_interrupt_input; |
a712a8c3 | 10954 | init_all_sys_modes (); |
c2f0866a DN |
10955 | #else |
10956 | interrupt_input = new_interrupt_input; | |
284f4730 | 10957 | #endif |
9a0f60bb | 10958 | |
a712a8c3 KL |
10959 | #ifdef POLL_FOR_INPUT |
10960 | poll_suppress_count = 1; | |
10961 | start_polling (); | |
10962 | #endif | |
10963 | } | |
10964 | return Qnil; | |
10965 | } | |
6bbba5a6 | 10966 | |
a712a8c3 KL |
10967 | DEFUN ("set-output-flow-control", Fset_output_flow_control, Sset_output_flow_control, 1, 2, 0, |
10968 | doc: /* Enable or disable ^S/^Q flow control for output to TERMINAL. | |
10969 | If FLOW is non-nil, flow control is enabled and you cannot use C-s or | |
10970 | C-q in key sequences. | |
10971 | ||
6ed8eeff | 10972 | This setting only has an effect on tty terminals and only when |
a712a8c3 KL |
10973 | Emacs reads input in CBREAK mode; see `set-input-interrupt-mode'. |
10974 | ||
10975 | See also `current-input-mode'. */) | |
5842a27b | 10976 | (Lisp_Object flow, Lisp_Object terminal) |
a712a8c3 | 10977 | { |
6ed8eeff | 10978 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 | 10979 | struct tty_display_info *tty; |
d44004c0 | 10980 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 10981 | return Qnil; |
6ed8eeff | 10982 | tty = t->display_info.tty; |
a712a8c3 KL |
10983 | |
10984 | if (tty->flow_control != !NILP (flow)) | |
daf01701 | 10985 | { |
a712a8c3 KL |
10986 | #ifndef DOS_NT |
10987 | /* this causes startup screen to be restored and messes with the mouse */ | |
10988 | reset_sys_modes (tty); | |
10989 | #endif | |
10990 | ||
daf01701 | 10991 | tty->flow_control = !NILP (flow); |
a712a8c3 KL |
10992 | |
10993 | #ifndef DOS_NT | |
10994 | init_sys_modes (tty); | |
10995 | #endif | |
daf01701 | 10996 | } |
ed8dad6b | 10997 | return Qnil; |
a712a8c3 KL |
10998 | } |
10999 | ||
11000 | DEFUN ("set-input-meta-mode", Fset_input_meta_mode, Sset_input_meta_mode, 1, 2, 0, | |
11001 | doc: /* Enable or disable 8-bit input on TERMINAL. | |
11002 | If META is t, Emacs will accept 8-bit input, and interpret the 8th | |
11003 | bit as the Meta modifier. | |
11004 | ||
11005 | If META is nil, Emacs will ignore the top bit, on the assumption it is | |
11006 | parity. | |
11007 | ||
11008 | Otherwise, Emacs will accept and pass through 8-bit input without | |
11009 | specially interpreting the top bit. | |
11010 | ||
6ed8eeff | 11011 | This setting only has an effect on tty terminal devices. |
3b7fbceb | 11012 | |
6ed8eeff | 11013 | Optional parameter TERMINAL specifies the tty terminal device to use. |
708e05dc CY |
11014 | It may be a terminal object, a frame, or nil for the terminal used by |
11015 | the currently selected frame. | |
a712a8c3 KL |
11016 | |
11017 | See also `current-input-mode'. */) | |
5842a27b | 11018 | (Lisp_Object meta, Lisp_Object terminal) |
a712a8c3 | 11019 | { |
6ed8eeff | 11020 | struct terminal *t = get_terminal (terminal, 1); |
a712a8c3 KL |
11021 | struct tty_display_info *tty; |
11022 | int new_meta; | |
033b73e2 | 11023 | |
d44004c0 | 11024 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11025 | return Qnil; |
6ed8eeff | 11026 | tty = t->display_info.tty; |
a712a8c3 | 11027 | |
b04904fb | 11028 | if (NILP (meta)) |
a712a8c3 | 11029 | new_meta = 0; |
b04904fb | 11030 | else if (EQ (meta, Qt)) |
a712a8c3 | 11031 | new_meta = 1; |
b04904fb | 11032 | else |
a712a8c3 | 11033 | new_meta = 2; |
284f4730 | 11034 | |
033b73e2 | 11035 | if (tty->meta_key != new_meta) |
a712a8c3 | 11036 | { |
07de30b9 | 11037 | #ifndef DOS_NT |
a712a8c3 KL |
11038 | /* this causes startup screen to be restored and messes with the mouse */ |
11039 | reset_sys_modes (tty); | |
2ee250ec | 11040 | #endif |
34f04431 | 11041 | |
a712a8c3 | 11042 | tty->meta_key = new_meta; |
033b73e2 | 11043 | |
a712a8c3 KL |
11044 | #ifndef DOS_NT |
11045 | init_sys_modes (tty); | |
34f04431 | 11046 | #endif |
a712a8c3 KL |
11047 | } |
11048 | return Qnil; | |
11049 | } | |
11050 | ||
11051 | DEFUN ("set-quit-char", Fset_quit_char, Sset_quit_char, 1, 1, 0, | |
11052 | doc: /* Specify character used for quitting. | |
11053 | QUIT must be an ASCII character. | |
11054 | ||
fdf5ebde KL |
11055 | This function only has an effect on the controlling tty of the Emacs |
11056 | process. | |
a712a8c3 KL |
11057 | |
11058 | See also `current-input-mode'. */) | |
5842a27b | 11059 | (Lisp_Object quit) |
a712a8c3 | 11060 | { |
fdf5ebde | 11061 | struct terminal *t = get_named_tty ("/dev/tty"); |
a712a8c3 | 11062 | struct tty_display_info *tty; |
d44004c0 | 11063 | if (t == NULL || (t->type != output_termcap && t->type != output_msdos_raw)) |
a712a8c3 | 11064 | return Qnil; |
6ed8eeff | 11065 | tty = t->display_info.tty; |
a712a8c3 | 11066 | |
6213d5b3 KL |
11067 | if (NILP (quit) || !INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400) |
11068 | error ("QUIT must be an ASCII character"); | |
11069 | ||
a712a8c3 KL |
11070 | #ifndef DOS_NT |
11071 | /* this causes startup screen to be restored and messes with the mouse */ | |
11072 | reset_sys_modes (tty); | |
11073 | #endif | |
033b73e2 | 11074 | |
a712a8c3 KL |
11075 | /* Don't let this value be out of range. */ |
11076 | quit_char = XINT (quit) & (tty->meta_key == 0 ? 0177 : 0377); | |
11077 | ||
11078 | #ifndef DOS_NT | |
11079 | init_sys_modes (tty); | |
34f04431 | 11080 | #endif |
a712a8c3 KL |
11081 | |
11082 | return Qnil; | |
11083 | } | |
033b73e2 | 11084 | |
a712a8c3 KL |
11085 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, |
11086 | doc: /* Set mode of reading keyboard input. | |
11087 | First arg INTERRUPT non-nil means use input interrupts; | |
11088 | nil means use CBREAK mode. | |
11089 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal | |
11090 | (no effect except in CBREAK mode). | |
11091 | Third arg META t means accept 8-bit input (for a Meta key). | |
11092 | META nil means ignore the top bit, on the assumption it is parity. | |
11093 | Otherwise, accept 8-bit input and don't use the top bit for Meta. | |
11094 | Optional fourth arg QUIT if non-nil specifies character to use for quitting. | |
11095 | See also `current-input-mode'. */) | |
5842a27b | 11096 | (Lisp_Object interrupt, Lisp_Object flow, Lisp_Object meta, Lisp_Object quit) |
a712a8c3 KL |
11097 | { |
11098 | Fset_input_interrupt_mode (interrupt); | |
11099 | Fset_output_flow_control (flow, Qnil); | |
11100 | Fset_input_meta_mode (meta, Qnil); | |
0a42be6d RF |
11101 | if (!NILP (quit)) |
11102 | Fset_quit_char (quit); | |
284f4730 JB |
11103 | return Qnil; |
11104 | } | |
80645119 JB |
11105 | |
11106 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
4707d2d0 PJ |
11107 | doc: /* Return information about the way Emacs currently reads keyboard input. |
11108 | The value is a list of the form (INTERRUPT FLOW META QUIT), where | |
11109 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if | |
11110 | nil, Emacs is using CBREAK mode. | |
11111 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the | |
11112 | terminal; this does not apply if Emacs uses interrupt-driven input. | |
11113 | META is t if accepting 8-bit input with 8th bit as Meta flag. | |
11114 | META nil means ignoring the top bit, on the assumption it is parity. | |
11115 | META is neither t nor nil if accepting 8-bit input and using | |
11116 | all 8 bits as the character code. | |
11117 | QUIT is the character Emacs currently uses to quit. | |
11118 | The elements of this list correspond to the arguments of | |
11119 | `set-input-mode'. */) | |
5842a27b | 11120 | (void) |
80645119 JB |
11121 | { |
11122 | Lisp_Object val[4]; | |
daf01701 | 11123 | struct frame *sf = XFRAME (selected_frame); |
80645119 JB |
11124 | |
11125 | val[0] = interrupt_input ? Qt : Qnil; | |
d44004c0 | 11126 | if (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf)) |
daf01701 KL |
11127 | { |
11128 | val[1] = FRAME_TTY (sf)->flow_control ? Qt : Qnil; | |
c3b4957f KL |
11129 | val[2] = (FRAME_TTY (sf)->meta_key == 2 |
11130 | ? make_number (0) | |
11131 | : (CURTTY ()->meta_key == 1 ? Qt : Qnil)); | |
daf01701 KL |
11132 | } |
11133 | else | |
11134 | { | |
11135 | val[1] = Qnil; | |
11136 | val[2] = Qt; | |
11137 | } | |
bb9e9bed | 11138 | XSETFASTINT (val[3], quit_char); |
80645119 | 11139 | |
bf673a7a | 11140 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
11141 | } |
11142 | ||
a25f766a | 11143 | DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0, |
ec026e7a KS |
11144 | doc: /* Return position information for pixel coordinates X and Y. |
11145 | By default, X and Y are relative to text area of the selected window. | |
6e604a9b | 11146 | Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window. |
a25f766a KS |
11147 | If optional fourth arg WHOLE is non-nil, X is relative to the left |
11148 | edge of the window. | |
ec026e7a KS |
11149 | |
11150 | The return value is similar to a mouse click position: | |
11151 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11152 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
11153 | The `posn-' functions access elements of such lists. */) | |
5842a27b | 11154 | (Lisp_Object x, Lisp_Object y, Lisp_Object frame_or_window, Lisp_Object whole) |
ec026e7a | 11155 | { |
f4a5a485 SM |
11156 | CHECK_NATNUM (x); |
11157 | CHECK_NATNUM (y); | |
11158 | ||
ec026e7a KS |
11159 | if (NILP (frame_or_window)) |
11160 | frame_or_window = selected_window; | |
11161 | ||
11162 | if (WINDOWP (frame_or_window)) | |
11163 | { | |
11164 | struct window *w; | |
11165 | ||
11166 | CHECK_LIVE_WINDOW (frame_or_window); | |
11167 | ||
11168 | w = XWINDOW (frame_or_window); | |
6507c4c7 KS |
11169 | XSETINT (x, (XINT (x) |
11170 | + WINDOW_LEFT_EDGE_X (w) | |
a25f766a KS |
11171 | + (NILP (whole) |
11172 | ? window_box_left_offset (w, TEXT_AREA) | |
6507c4c7 | 11173 | : 0))); |
ec026e7a KS |
11174 | XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y))); |
11175 | frame_or_window = w->frame; | |
11176 | } | |
11177 | ||
11178 | CHECK_LIVE_FRAME (frame_or_window); | |
11179 | ||
9173a8fb | 11180 | return make_lispy_position (XFRAME (frame_or_window), x, y, 0); |
ec026e7a KS |
11181 | } |
11182 | ||
11183 | DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0, | |
11184 | doc: /* Return position information for buffer POS in WINDOW. | |
11185 | POS defaults to point in WINDOW; WINDOW defaults to the selected window. | |
11186 | ||
11187 | Return nil if position is not visible in window. Otherwise, | |
883d272e | 11188 | the return value is similar to that returned by `event-start' for |
ec026e7a KS |
11189 | a mouse click at the upper left corner of the glyph corresponding |
11190 | to the given buffer position: | |
11191 | (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW) | |
11192 | IMAGE (DX . DY) (WIDTH . HEIGHT)) | |
8f1657f0 | 11193 | The `posn-' functions access elements of such lists. */) |
5842a27b | 11194 | (Lisp_Object pos, Lisp_Object window) |
ec026e7a KS |
11195 | { |
11196 | Lisp_Object tem; | |
11197 | ||
6507c4c7 KS |
11198 | if (NILP (window)) |
11199 | window = selected_window; | |
11200 | ||
ec026e7a KS |
11201 | tem = Fpos_visible_in_window_p (pos, window, Qt); |
11202 | if (!NILP (tem)) | |
6507c4c7 KS |
11203 | { |
11204 | Lisp_Object x = XCAR (tem); | |
11205 | Lisp_Object y = XCAR (XCDR (tem)); | |
11206 | ||
11207 | /* Point invisible due to hscrolling? */ | |
11208 | if (XINT (x) < 0) | |
11209 | return Qnil; | |
11210 | tem = Fposn_at_x_y (x, y, window, Qnil); | |
11211 | } | |
11212 | ||
ec026e7a KS |
11213 | return tem; |
11214 | } | |
11215 | ||
284f4730 | 11216 | \f |
6c6083a9 | 11217 | /* |
c5fdd383 | 11218 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
11219 | */ |
11220 | void | |
d3da34e0 | 11221 | init_kboard (KBOARD *kb) |
6c6083a9 | 11222 | { |
217258d5 | 11223 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 11224 | kb->Vlast_command = Qnil; |
75045dcb | 11225 | kb->Vreal_last_command = Qnil; |
2e478293 | 11226 | kb->Vkeyboard_translate_table = Qnil; |
d0d3a311 | 11227 | kb->Vlast_repeatable_command = Qnil; |
d8bcf58e | 11228 | kb->Vprefix_arg = Qnil; |
75045dcb | 11229 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
11230 | kb->kbd_queue = Qnil; |
11231 | kb->kbd_queue_has_data = 0; | |
11232 | kb->immediate_echo = 0; | |
678e9d18 | 11233 | kb->echo_string = Qnil; |
c5fdd383 KH |
11234 | kb->echo_after_prompt = -1; |
11235 | kb->kbd_macro_buffer = 0; | |
11236 | kb->kbd_macro_bufsize = 0; | |
11237 | kb->defining_kbd_macro = Qnil; | |
11238 | kb->Vlast_kbd_macro = Qnil; | |
11239 | kb->reference_count = 0; | |
7c97ffdc | 11240 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 11241 | kb->system_key_syms = Qnil; |
70b8d0a4 | 11242 | kb->Vwindow_system = Qt; /* Unset. */ |
4f4a84ec | 11243 | kb->Vinput_decode_map = Fmake_sparse_keymap (Qnil); |
ac09dc1e KL |
11244 | kb->Vlocal_function_key_map = Fmake_sparse_keymap (Qnil); |
11245 | Fset_keymap_parent (kb->Vlocal_function_key_map, Vfunction_key_map); | |
9ba47203 | 11246 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
11247 | } |
11248 | ||
11249 | /* | |
c5fdd383 | 11250 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 11251 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
11252 | * it a second time. |
11253 | */ | |
e50b8090 | 11254 | static void |
d3da34e0 | 11255 | wipe_kboard (KBOARD *kb) |
6c6083a9 | 11256 | { |
70fdbb46 | 11257 | xfree (kb->kbd_macro_buffer); |
6c6083a9 KH |
11258 | } |
11259 | ||
a122a38e GM |
11260 | /* Free KB and memory referenced from it. */ |
11261 | ||
e50b8090 | 11262 | void |
d3da34e0 | 11263 | delete_kboard (KBOARD *kb) |
e50b8090 KH |
11264 | { |
11265 | KBOARD **kbp; | |
c60ee5e7 | 11266 | |
e50b8090 KH |
11267 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) |
11268 | if (*kbp == NULL) | |
11269 | abort (); | |
11270 | *kbp = kb->next_kboard; | |
a122a38e GM |
11271 | |
11272 | /* Prevent a dangling reference to KB. */ | |
18f534df GM |
11273 | if (kb == current_kboard |
11274 | && FRAMEP (selected_frame) | |
11275 | && FRAME_LIVE_P (XFRAME (selected_frame))) | |
a122a38e | 11276 | { |
b3e6f69c KL |
11277 | current_kboard = FRAME_KBOARD (XFRAME (selected_frame)); |
11278 | single_kboard = 0; | |
a122a38e GM |
11279 | if (current_kboard == kb) |
11280 | abort (); | |
11281 | } | |
c60ee5e7 | 11282 | |
e50b8090 KH |
11283 | wipe_kboard (kb); |
11284 | xfree (kb); | |
11285 | } | |
a122a38e | 11286 | |
dfcf069d | 11287 | void |
d3da34e0 | 11288 | init_keyboard (void) |
284f4730 | 11289 | { |
284f4730 JB |
11290 | /* This is correct before outermost invocation of the editor loop */ |
11291 | command_loop_level = -1; | |
11292 | immediate_quit = 0; | |
11293 | quit_char = Ctl ('g'); | |
24597608 | 11294 | Vunread_command_events = Qnil; |
86e5706b | 11295 | unread_command_char = -1; |
87dd9b9b | 11296 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 11297 | total_keys = 0; |
9deb415a | 11298 | recent_keys_index = 0; |
beecf6a1 KH |
11299 | kbd_fetch_ptr = kbd_buffer; |
11300 | kbd_store_ptr = kbd_buffer; | |
ae372f41 | 11301 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
a9d77f1f | 11302 | do_mouse_tracking = Qnil; |
2eb6bfbe | 11303 | #endif |
284f4730 | 11304 | input_pending = 0; |
4c180390 JD |
11305 | interrupt_input_blocked = 0; |
11306 | interrupt_input_pending = 0; | |
07a1e794 | 11307 | #ifdef SYNC_INPUT |
ceb18827 | 11308 | pending_signals = 0; |
07a1e794 | 11309 | #endif |
284f4730 | 11310 | |
4c52b668 KH |
11311 | /* This means that command_loop_1 won't try to select anything the first |
11312 | time through. */ | |
11313 | internal_last_event_frame = Qnil; | |
11314 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 11315 | |
aaca43a1 | 11316 | current_kboard = initial_kboard; |
1bc973c2 | 11317 | /* Re-initialize the keyboard again. */ |
aaca43a1 | 11318 | wipe_kboard (current_kboard); |
c5fdd383 | 11319 | init_kboard (current_kboard); |
1bc973c2 SM |
11320 | /* A value of nil for Vwindow_system normally means a tty, but we also use |
11321 | it for the initial terminal since there is no window system there. */ | |
11322 | current_kboard->Vwindow_system = Qnil; | |
07d2b8de | 11323 | |
7b00d185 | 11324 | if (!noninteractive) |
284f4730 | 11325 | { |
3224dac1 KL |
11326 | /* Before multi-tty support, these handlers used to be installed |
11327 | only if the current session was a tty session. Now an Emacs | |
11328 | session may have multiple display types, so we always handle | |
11329 | SIGINT. There is special code in interrupt_signal to exit | |
4ca927b4 KL |
11330 | Emacs on SIGINT when there are no termcap frames on the |
11331 | controlling terminal. */ | |
284f4730 | 11332 | signal (SIGINT, interrupt_signal); |
a7ebc409 | 11333 | #ifndef DOS_NT |
284f4730 JB |
11334 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
11335 | SIGQUIT and we can't tell which one it will give us. */ | |
11336 | signal (SIGQUIT, interrupt_signal); | |
a7ebc409 | 11337 | #endif /* not DOS_NT */ |
7a80a6f6 | 11338 | } |
284f4730 JB |
11339 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
11340 | #ifdef SIGIO | |
7a80a6f6 RS |
11341 | if (!noninteractive) |
11342 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 11343 | #endif /* SIGIO */ |
284f4730 JB |
11344 | |
11345 | /* Use interrupt input by default, if it works and noninterrupt input | |
11346 | has deficiencies. */ | |
11347 | ||
11348 | #ifdef INTERRUPT_INPUT | |
11349 | interrupt_input = 1; | |
11350 | #else | |
11351 | interrupt_input = 0; | |
11352 | #endif | |
11353 | ||
284f4730 JB |
11354 | sigfree (); |
11355 | dribble = 0; | |
11356 | ||
11357 | if (keyboard_init_hook) | |
11358 | (*keyboard_init_hook) (); | |
11359 | ||
11360 | #ifdef POLL_FOR_INPUT | |
c3c963a0 | 11361 | poll_timer = NULL; |
284f4730 JB |
11362 | poll_suppress_count = 1; |
11363 | start_polling (); | |
11364 | #endif | |
11365 | } | |
11366 | ||
df0f2ba1 | 11367 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
11368 | event header symbols and put properties on them. */ |
11369 | struct event_head { | |
11370 | Lisp_Object *var; | |
8ea90aa3 | 11371 | const char *name; |
284f4730 JB |
11372 | Lisp_Object *kind; |
11373 | }; | |
11374 | ||
6f704c76 | 11375 | static const struct event_head head_table[] = { |
7406e988 PJ |
11376 | {&Qmouse_movement, "mouse-movement", &Qmouse_movement}, |
11377 | {&Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement}, | |
11378 | {&Qswitch_frame, "switch-frame", &Qswitch_frame}, | |
11379 | {&Qdelete_frame, "delete-frame", &Qdelete_frame}, | |
11380 | {&Qiconify_frame, "iconify-frame", &Qiconify_frame}, | |
a697f886 | 11381 | {&Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible}, |
6901b111 SM |
11382 | /* `select-window' should be handled just like `switch-frame' |
11383 | in read_key_sequence. */ | |
11384 | {&Qselect_window, "select-window", &Qswitch_frame} | |
284f4730 JB |
11385 | }; |
11386 | ||
dfcf069d | 11387 | void |
d3da34e0 | 11388 | syms_of_keyboard (void) |
284f4730 | 11389 | { |
58555d81 | 11390 | pending_funcalls = Qnil; |
864660a2 | 11391 | staticpro (&pending_funcalls); |
58555d81 | 11392 | |
a4ada374 | 11393 | Vlispy_mouse_stem = make_pure_c_string ("mouse"); |
8e1e4240 | 11394 | staticpro (&Vlispy_mouse_stem); |
f0c1cc56 | 11395 | |
9ea173e8 | 11396 | /* Tool-bars. */ |
d67b4f80 | 11397 | QCimage = intern_c_string (":image"); |
7ee32cda GM |
11398 | staticpro (&QCimage); |
11399 | ||
11400 | staticpro (&Qhelp_echo); | |
d67b4f80 | 11401 | Qhelp_echo = intern_c_string ("help-echo"); |
7ee32cda | 11402 | |
cf0590c4 | 11403 | staticpro (&Qrtl); |
d67b4f80 | 11404 | Qrtl = intern_c_string (":rtl"); |
cf0590c4 | 11405 | |
e8886a1d RS |
11406 | staticpro (&item_properties); |
11407 | item_properties = Qnil; | |
11408 | ||
9ea173e8 GM |
11409 | staticpro (&tool_bar_item_properties); |
11410 | tool_bar_item_properties = Qnil; | |
11411 | staticpro (&tool_bar_items_vector); | |
11412 | tool_bar_items_vector = Qnil; | |
7ee32cda | 11413 | |
d5eecefb RS |
11414 | staticpro (&real_this_command); |
11415 | real_this_command = Qnil; | |
11416 | ||
d67b4f80 | 11417 | Qtimer_event_handler = intern_c_string ("timer-event-handler"); |
d925fb39 RS |
11418 | staticpro (&Qtimer_event_handler); |
11419 | ||
d67b4f80 | 11420 | Qdisabled_command_function = intern_c_string ("disabled-command-function"); |
971e4c98 | 11421 | staticpro (&Qdisabled_command_function); |
2e894dab | 11422 | |
d67b4f80 | 11423 | Qself_insert_command = intern_c_string ("self-insert-command"); |
284f4730 JB |
11424 | staticpro (&Qself_insert_command); |
11425 | ||
d67b4f80 | 11426 | Qforward_char = intern_c_string ("forward-char"); |
284f4730 JB |
11427 | staticpro (&Qforward_char); |
11428 | ||
d67b4f80 | 11429 | Qbackward_char = intern_c_string ("backward-char"); |
284f4730 JB |
11430 | staticpro (&Qbackward_char); |
11431 | ||
d67b4f80 | 11432 | Qdisabled = intern_c_string ("disabled"); |
284f4730 JB |
11433 | staticpro (&Qdisabled); |
11434 | ||
d67b4f80 | 11435 | Qundefined = intern_c_string ("undefined"); |
e58aa385 RS |
11436 | staticpro (&Qundefined); |
11437 | ||
d67b4f80 | 11438 | Qpre_command_hook = intern_c_string ("pre-command-hook"); |
86e5706b RS |
11439 | staticpro (&Qpre_command_hook); |
11440 | ||
d67b4f80 | 11441 | Qpost_command_hook = intern_c_string ("post-command-hook"); |
86e5706b RS |
11442 | staticpro (&Qpost_command_hook); |
11443 | ||
d67b4f80 | 11444 | Qdeferred_action_function = intern_c_string ("deferred-action-function"); |
3ef14e46 RS |
11445 | staticpro (&Qdeferred_action_function); |
11446 | ||
d67b4f80 | 11447 | Qcommand_hook_internal = intern_c_string ("command-hook-internal"); |
40932d1a RS |
11448 | staticpro (&Qcommand_hook_internal); |
11449 | ||
d67b4f80 | 11450 | Qfunction_key = intern_c_string ("function-key"); |
284f4730 | 11451 | staticpro (&Qfunction_key); |
d67b4f80 | 11452 | Qmouse_click = intern_c_string ("mouse-click"); |
284f4730 | 11453 | staticpro (&Qmouse_click); |
9e2a2647 | 11454 | #if defined (WINDOWSNT) |
d67b4f80 | 11455 | Qlanguage_change = intern_c_string ("language-change"); |
1161d367 | 11456 | staticpro (&Qlanguage_change); |
07de30b9 | 11457 | #endif |
d67b4f80 | 11458 | Qdrag_n_drop = intern_c_string ("drag-n-drop"); |
a24dc617 | 11459 | staticpro (&Qdrag_n_drop); |
284f4730 | 11460 | |
d67b4f80 | 11461 | Qsave_session = intern_c_string ("save-session"); |
6e604a9b | 11462 | staticpro (&Qsave_session); |
c60ee5e7 | 11463 | |
033b73e2 | 11464 | #ifdef HAVE_DBUS |
d67b4f80 | 11465 | Qdbus_event = intern_c_string ("dbus-event"); |
033b73e2 MA |
11466 | staticpro (&Qdbus_event); |
11467 | #endif | |
11468 | ||
637fa988 JD |
11469 | Qconfig_changed_event = intern_c_string ("config-changed-event"); |
11470 | staticpro (&Qconfig_changed_event); | |
11471 | ||
d67b4f80 | 11472 | Qmenu_enable = intern_c_string ("menu-enable"); |
598a9fa7 | 11473 | staticpro (&Qmenu_enable); |
d67b4f80 | 11474 | QCenable = intern_c_string (":enable"); |
e8886a1d | 11475 | staticpro (&QCenable); |
d67b4f80 | 11476 | QCvisible = intern_c_string (":visible"); |
e8886a1d | 11477 | staticpro (&QCvisible); |
d67b4f80 | 11478 | QChelp = intern_c_string (":help"); |
7ee32cda | 11479 | staticpro (&QChelp); |
d67b4f80 | 11480 | QCfilter = intern_c_string (":filter"); |
e8886a1d | 11481 | staticpro (&QCfilter); |
d67b4f80 | 11482 | QCbutton = intern_c_string (":button"); |
e8886a1d | 11483 | staticpro (&QCbutton); |
d67b4f80 | 11484 | QCkeys = intern_c_string (":keys"); |
74c1de23 | 11485 | staticpro (&QCkeys); |
d67b4f80 | 11486 | QCkey_sequence = intern_c_string (":key-sequence"); |
74c1de23 | 11487 | staticpro (&QCkey_sequence); |
d67b4f80 | 11488 | QCtoggle = intern_c_string (":toggle"); |
e8886a1d | 11489 | staticpro (&QCtoggle); |
d67b4f80 | 11490 | QCradio = intern_c_string (":radio"); |
e8886a1d | 11491 | staticpro (&QCradio); |
f904c0f9 JD |
11492 | QClabel = intern_c_string (":label"); |
11493 | staticpro (&QClabel); | |
d2bd5189 JD |
11494 | QCvert_only = intern_c_string (":vert-only"); |
11495 | staticpro (&QCvert_only); | |
598a9fa7 | 11496 | |
d67b4f80 | 11497 | Qmode_line = intern_c_string ("mode-line"); |
284f4730 | 11498 | staticpro (&Qmode_line); |
d67b4f80 | 11499 | Qvertical_line = intern_c_string ("vertical-line"); |
e5d77022 | 11500 | staticpro (&Qvertical_line); |
d67b4f80 | 11501 | Qvertical_scroll_bar = intern_c_string ("vertical-scroll-bar"); |
3c370943 | 11502 | staticpro (&Qvertical_scroll_bar); |
d67b4f80 | 11503 | Qmenu_bar = intern_c_string ("menu-bar"); |
5ec75a55 | 11504 | staticpro (&Qmenu_bar); |
4bb994d1 | 11505 | |
ae372f41 | 11506 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
d67b4f80 | 11507 | Qmouse_fixup_help_message = intern_c_string ("mouse-fixup-help-message"); |
c22237f7 KS |
11508 | staticpro (&Qmouse_fixup_help_message); |
11509 | #endif | |
11510 | ||
d67b4f80 | 11511 | Qabove_handle = intern_c_string ("above-handle"); |
4bb994d1 | 11512 | staticpro (&Qabove_handle); |
d67b4f80 | 11513 | Qhandle = intern_c_string ("handle"); |
4bb994d1 | 11514 | staticpro (&Qhandle); |
d67b4f80 | 11515 | Qbelow_handle = intern_c_string ("below-handle"); |
4bb994d1 | 11516 | staticpro (&Qbelow_handle); |
d67b4f80 | 11517 | Qup = intern_c_string ("up"); |
db08707d | 11518 | staticpro (&Qup); |
d67b4f80 | 11519 | Qdown = intern_c_string ("down"); |
db08707d | 11520 | staticpro (&Qdown); |
d67b4f80 | 11521 | Qtop = intern_c_string ("top"); |
7ee32cda | 11522 | staticpro (&Qtop); |
d67b4f80 | 11523 | Qbottom = intern_c_string ("bottom"); |
7ee32cda | 11524 | staticpro (&Qbottom); |
d67b4f80 | 11525 | Qend_scroll = intern_c_string ("end-scroll"); |
7ee32cda | 11526 | staticpro (&Qend_scroll); |
d67b4f80 | 11527 | Qratio = intern_c_string ("ratio"); |
eef28553 | 11528 | staticpro (&Qratio); |
284f4730 | 11529 | |
d67b4f80 | 11530 | Qevent_kind = intern_c_string ("event-kind"); |
284f4730 | 11531 | staticpro (&Qevent_kind); |
d67b4f80 | 11532 | Qevent_symbol_elements = intern_c_string ("event-symbol-elements"); |
88cb0656 | 11533 | staticpro (&Qevent_symbol_elements); |
d67b4f80 | 11534 | Qevent_symbol_element_mask = intern_c_string ("event-symbol-element-mask"); |
0a7f1fc0 | 11535 | staticpro (&Qevent_symbol_element_mask); |
d67b4f80 | 11536 | Qmodifier_cache = intern_c_string ("modifier-cache"); |
0a7f1fc0 | 11537 | staticpro (&Qmodifier_cache); |
284f4730 | 11538 | |
d67b4f80 | 11539 | Qrecompute_lucid_menubar = intern_c_string ("recompute-lucid-menubar"); |
48e416d4 | 11540 | staticpro (&Qrecompute_lucid_menubar); |
d67b4f80 | 11541 | Qactivate_menubar_hook = intern_c_string ("activate-menubar-hook"); |
48e416d4 RS |
11542 | staticpro (&Qactivate_menubar_hook); |
11543 | ||
d67b4f80 | 11544 | Qpolling_period = intern_c_string ("polling-period"); |
f4eef8b4 RS |
11545 | staticpro (&Qpolling_period); |
11546 | ||
d67b4f80 | 11547 | Qinput_method_function = intern_c_string ("input-method-function"); |
7d18f9ae RS |
11548 | staticpro (&Qinput_method_function); |
11549 | ||
9852377f CY |
11550 | Qx_set_selection = intern_c_string ("x-set-selection"); |
11551 | staticpro (&Qx_set_selection); | |
11552 | QPRIMARY = intern_c_string ("PRIMARY"); | |
11553 | staticpro (&QPRIMARY); | |
1c409d0b CY |
11554 | Qhandle_switch_frame = intern_c_string ("handle-switch-frame"); |
11555 | staticpro (&Qhandle_switch_frame); | |
9852377f | 11556 | |
d67b4f80 | 11557 | Qinput_method_exit_on_first_char = intern_c_string ("input-method-exit-on-first-char"); |
d5eecefb | 11558 | staticpro (&Qinput_method_exit_on_first_char); |
d67b4f80 | 11559 | Qinput_method_use_echo_area = intern_c_string ("input-method-use-echo-area"); |
d5eecefb RS |
11560 | staticpro (&Qinput_method_use_echo_area); |
11561 | ||
11562 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
11563 | Fset (Qinput_method_use_echo_area, Qnil); | |
11564 | ||
e18dfbf4 | 11565 | last_point_position_buffer = Qnil; |
bb0e1d19 | 11566 | last_point_position_window = Qnil; |
e18dfbf4 | 11567 | |
284f4730 | 11568 | { |
6f704c76 | 11569 | const struct event_head *p; |
284f4730 JB |
11570 | |
11571 | for (p = head_table; | |
11572 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
11573 | p++) | |
11574 | { | |
d67b4f80 | 11575 | *p->var = intern_c_string (p->name); |
284f4730 JB |
11576 | staticpro (p->var); |
11577 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 11578 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
11579 | } |
11580 | } | |
11581 | ||
1373f3be | 11582 | button_down_location = Fmake_vector (make_number (5), Qnil); |
7b4aedb9 | 11583 | staticpro (&button_down_location); |
1373f3be | 11584 | mouse_syms = Fmake_vector (make_number (5), Qnil); |
8e1e4240 | 11585 | staticpro (&mouse_syms); |
3208cb35 YM |
11586 | wheel_syms = Fmake_vector (make_number (sizeof (lispy_wheel_names) |
11587 | / sizeof (lispy_wheel_names[0])), | |
11588 | Qnil); | |
8006e4bb | 11589 | staticpro (&wheel_syms); |
88cb0656 JB |
11590 | |
11591 | { | |
11592 | int i; | |
11593 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
11594 | ||
11595 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
11596 | for (i = 0; i < len; i++) | |
86e5706b | 11597 | if (modifier_names[i]) |
d67b4f80 | 11598 | XVECTOR (modifier_symbols)->contents[i] = intern_c_string (modifier_names[i]); |
88cb0656 JB |
11599 | staticpro (&modifier_symbols); |
11600 | } | |
11601 | ||
9deb415a JB |
11602 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
11603 | staticpro (&recent_keys); | |
11604 | ||
6569cc8d | 11605 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 11606 | staticpro (&this_command_keys); |
6569cc8d | 11607 | |
7d18f9ae RS |
11608 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
11609 | staticpro (&raw_keybuf); | |
11610 | ||
d67b4f80 | 11611 | Qextended_command_history = intern_c_string ("extended-command-history"); |
03b4122a BF |
11612 | Fset (Qextended_command_history, Qnil); |
11613 | staticpro (&Qextended_command_history); | |
11614 | ||
24597608 RS |
11615 | accent_key_syms = Qnil; |
11616 | staticpro (&accent_key_syms); | |
11617 | ||
284f4730 JB |
11618 | func_key_syms = Qnil; |
11619 | staticpro (&func_key_syms); | |
11620 | ||
a24dc617 RS |
11621 | drag_n_drop_syms = Qnil; |
11622 | staticpro (&drag_n_drop_syms); | |
07de30b9 | 11623 | |
cd21b839 JB |
11624 | unread_switch_frame = Qnil; |
11625 | staticpro (&unread_switch_frame); | |
11626 | ||
fe412364 EN |
11627 | internal_last_event_frame = Qnil; |
11628 | staticpro (&internal_last_event_frame); | |
11629 | ||
11630 | read_key_sequence_cmd = Qnil; | |
11631 | staticpro (&read_key_sequence_cmd); | |
11632 | ||
759860a6 RS |
11633 | menu_bar_one_keymap_changed_items = Qnil; |
11634 | staticpro (&menu_bar_one_keymap_changed_items); | |
11635 | ||
7320c7de KS |
11636 | menu_bar_items_vector = Qnil; |
11637 | staticpro (&menu_bar_items_vector); | |
11638 | ||
638d3da0 CY |
11639 | help_form_saved_window_configs = Qnil; |
11640 | staticpro (&help_form_saved_window_configs); | |
11641 | ||
ff458d81 | 11642 | defsubr (&Scurrent_idle_time); |
58da34c7 | 11643 | defsubr (&Sevent_symbol_parse_modifiers); |
a1706c30 | 11644 | defsubr (&Sevent_convert_list); |
284f4730 | 11645 | defsubr (&Sread_key_sequence); |
e39da3d7 | 11646 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 11647 | defsubr (&Srecursive_edit); |
ae372f41 | 11648 | #if defined (HAVE_MOUSE) || defined (HAVE_GPM) |
284f4730 | 11649 | defsubr (&Strack_mouse); |
2eb6bfbe | 11650 | #endif |
284f4730 JB |
11651 | defsubr (&Sinput_pending_p); |
11652 | defsubr (&Scommand_execute); | |
11653 | defsubr (&Srecent_keys); | |
11654 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 11655 | defsubr (&Sthis_command_keys_vector); |
6321824f | 11656 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 11657 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 11658 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 11659 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
11660 | defsubr (&Ssuspend_emacs); |
11661 | defsubr (&Sabort_recursive_edit); | |
11662 | defsubr (&Sexit_recursive_edit); | |
11663 | defsubr (&Srecursion_depth); | |
11664 | defsubr (&Stop_level); | |
11665 | defsubr (&Sdiscard_input); | |
11666 | defsubr (&Sopen_dribble_file); | |
a712a8c3 KL |
11667 | defsubr (&Sset_input_interrupt_mode); |
11668 | defsubr (&Sset_output_flow_control); | |
11669 | defsubr (&Sset_input_meta_mode); | |
11670 | defsubr (&Sset_quit_char); | |
284f4730 | 11671 | defsubr (&Sset_input_mode); |
80645119 | 11672 | defsubr (&Scurrent_input_mode); |
284f4730 | 11673 | defsubr (&Sexecute_extended_command); |
ec026e7a KS |
11674 | defsubr (&Sposn_at_point); |
11675 | defsubr (&Sposn_at_x_y); | |
284f4730 | 11676 | |
29208e82 | 11677 | DEFVAR_LISP ("last-command-event", last_command_event, |
4707d2d0 | 11678 | doc: /* Last input event that was part of a command. */); |
284f4730 | 11679 | |
29208e82 | 11680 | DEFVAR_LISP ("last-nonmenu-event", last_nonmenu_event, |
4707d2d0 PJ |
11681 | doc: /* Last input event in a command, except for mouse menu events. |
11682 | Mouse menus give back keys that don't look like mouse events; | |
11683 | this variable holds the actual mouse event that led to the menu, | |
11684 | so that you can determine whether the command was run by mouse or not. */); | |
7d6de002 | 11685 | |
29208e82 | 11686 | DEFVAR_LISP ("last-input-event", last_input_event, |
fa1361cb | 11687 | doc: /* Last input event. */); |
86e5706b | 11688 | |
29208e82 | 11689 | DEFVAR_LISP ("unread-command-events", Vunread_command_events, |
4707d2d0 | 11690 | doc: /* List of events to be read as the command input. |
96f4f7ec KS |
11691 | These events are processed first, before actual keyboard input. |
11692 | Events read from this list are not normally added to `this-command-keys', | |
11693 | as they will already have been added once as they were read for the first time. | |
11694 | An element of the form (t . EVENT) forces EVENT to be added to that list. */); | |
7d18f9ae | 11695 | Vunread_command_events = Qnil; |
284f4730 | 11696 | |
29208e82 | 11697 | DEFVAR_INT ("unread-command-char", unread_command_char, |
4707d2d0 | 11698 | doc: /* If not -1, an object to be read as next command input event. */); |
86e5706b | 11699 | |
29208e82 | 11700 | DEFVAR_LISP ("unread-post-input-method-events", Vunread_post_input_method_events, |
4707d2d0 | 11701 | doc: /* List of events to be processed as input by input methods. |
748726f4 | 11702 | These events are processed before `unread-command-events' |
7d8d0914 | 11703 | and actual keyboard input, but are not given to `input-method-function'. */); |
7d18f9ae RS |
11704 | Vunread_post_input_method_events = Qnil; |
11705 | ||
29208e82 | 11706 | DEFVAR_LISP ("unread-input-method-events", Vunread_input_method_events, |
4707d2d0 PJ |
11707 | doc: /* List of events to be processed as input by input methods. |
11708 | These events are processed after `unread-command-events', but | |
748726f4 KH |
11709 | before actual keyboard input. |
11710 | If there's an active input method, the events are given to | |
11711 | `input-method-function'. */); | |
7d18f9ae RS |
11712 | Vunread_input_method_events = Qnil; |
11713 | ||
29208e82 | 11714 | DEFVAR_LISP ("meta-prefix-char", meta_prefix_char, |
4707d2d0 PJ |
11715 | doc: /* Meta-prefix character code. |
11716 | Meta-foo as command input turns into this character followed by foo. */); | |
18cd2eeb | 11717 | XSETINT (meta_prefix_char, 033); |
284f4730 | 11718 | |
6c7178b9 | 11719 | DEFVAR_KBOARD ("last-command", Vlast_command, |
4707d2d0 PJ |
11720 | doc: /* The last command executed. |
11721 | Normally a symbol with a function definition, but can be whatever was found | |
11722 | in the keymap, or whatever the variable `this-command' was set to by that | |
11723 | command. | |
11724 | ||
11725 | The value `mode-exit' is special; it means that the previous command | |
11726 | read an event that told it to exit, and it did so and unread that event. | |
11727 | In other words, the present command is the event that made the previous | |
11728 | command exit. | |
11729 | ||
11730 | The value `kill-region' is special; it means that the previous command | |
2a42d440 KL |
11731 | was a kill command. |
11732 | ||
6ed8eeff | 11733 | `last-command' has a separate binding for each terminal device. |
31c4aaf6 | 11734 | See Info node `(elisp)Multiple Terminals'. */); |
284f4730 | 11735 | |
75045dcb | 11736 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
4707d2d0 | 11737 | doc: /* Same as `last-command', but never altered by Lisp code. */); |
75045dcb | 11738 | |
d0d3a311 MR |
11739 | DEFVAR_KBOARD ("last-repeatable-command", Vlast_repeatable_command, |
11740 | doc: /* Last command that may be repeated. | |
11741 | The last command executed that was not bound to an input event. | |
11742 | This is the command `repeat' will try to repeat. */); | |
11743 | ||
29208e82 | 11744 | DEFVAR_LISP ("this-command", Vthis_command, |
4707d2d0 PJ |
11745 | doc: /* The command now being executed. |
11746 | The command can set this variable; whatever is put here | |
11747 | will be in `last-command' during the following command. */); | |
d5eecefb | 11748 | Vthis_command = Qnil; |
284f4730 | 11749 | |
025ae953 | 11750 | DEFVAR_LISP ("this-command-keys-shift-translated", |
29208e82 | 11751 | Vthis_command_keys_shift_translated, |
025ae953 CY |
11752 | doc: /* Non-nil if the key sequence activating this command was shift-translated. |
11753 | Shift-translation occurs when there is no binding for the key sequence | |
11754 | as entered, but a binding was found by changing an upper-case letter | |
11755 | to lower-case, or a shifted function key to an unshifted one. */); | |
11756 | Vthis_command_keys_shift_translated = Qnil; | |
11757 | ||
29208e82 | 11758 | DEFVAR_LISP ("this-original-command", Vthis_original_command, |
f5613d1e KS |
11759 | doc: /* The command bound to the current key sequence before remapping. |
11760 | It equals `this-command' if the original command was not remapped through | |
11761 | any of the active keymaps. Otherwise, the value of `this-command' is the | |
177c0ea7 | 11762 | result of looking up the original command in the active keymaps. */); |
8b9940e6 KS |
11763 | Vthis_original_command = Qnil; |
11764 | ||
29208e82 | 11765 | DEFVAR_INT ("auto-save-interval", auto_save_interval, |
4707d2d0 PJ |
11766 | doc: /* *Number of input events between auto-saves. |
11767 | Zero means disable autosaving due to number of characters typed. */); | |
284f4730 JB |
11768 | auto_save_interval = 300; |
11769 | ||
29208e82 | 11770 | DEFVAR_LISP ("auto-save-timeout", Vauto_save_timeout, |
4707d2d0 PJ |
11771 | doc: /* *Number of seconds idle time before auto-save. |
11772 | Zero or nil means disable auto-saving due to idleness. | |
11773 | After auto-saving due to this many seconds of idle time, | |
11774 | Emacs also does a garbage collection if that seems to be warranted. */); | |
bb9e9bed | 11775 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 | 11776 | |
29208e82 | 11777 | DEFVAR_LISP ("echo-keystrokes", Vecho_keystrokes, |
4707d2d0 PJ |
11778 | doc: /* *Nonzero means echo unfinished commands after this many seconds of pause. |
11779 | The value may be integer or floating point. */); | |
39aab679 | 11780 | Vecho_keystrokes = make_number (1); |
284f4730 | 11781 | |
29208e82 | 11782 | DEFVAR_INT ("polling-period", polling_period, |
4707d2d0 PJ |
11783 | doc: /* *Interval between polling for input during Lisp execution. |
11784 | The reason for polling is to make C-g work to stop a running program. | |
11785 | Polling is needed only when using X windows and SIGIO does not work. | |
11786 | Polling is automatically disabled in all other cases. */); | |
284f4730 | 11787 | polling_period = 2; |
df0f2ba1 | 11788 | |
29208e82 | 11789 | DEFVAR_LISP ("double-click-time", Vdouble_click_time, |
4707d2d0 | 11790 | doc: /* *Maximum time between mouse clicks to make a double-click. |
05e0ac99 JB |
11791 | Measured in milliseconds. The value nil means disable double-click |
11792 | recognition; t means double-clicks have no time limit and are detected | |
4707d2d0 | 11793 | by position only. */); |
aab06933 | 11794 | Vdouble_click_time = make_number (500); |
fbcd35bd | 11795 | |
29208e82 | 11796 | DEFVAR_INT ("double-click-fuzz", double_click_fuzz, |
4707d2d0 PJ |
11797 | doc: /* *Maximum mouse movement between clicks to make a double-click. |
11798 | On window-system frames, value is the number of pixels the mouse may have | |
11799 | moved horizontally or vertically between two clicks to make a double-click. | |
11800 | On non window-system frames, value is interpreted in units of 1/8 characters | |
1ca6a9c4 RS |
11801 | instead of pixels. |
11802 | ||
11803 | This variable is also the threshold for motion of the mouse | |
11804 | to count as a drag. */); | |
222d557c | 11805 | double_click_fuzz = 3; |
c60ee5e7 | 11806 | |
29208e82 | 11807 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", inhibit_local_menu_bar_menus, |
4707d2d0 | 11808 | doc: /* *Non-nil means inhibit local map menu bar menus. */); |
03361bcc RS |
11809 | inhibit_local_menu_bar_menus = 0; |
11810 | ||
29208e82 | 11811 | DEFVAR_INT ("num-input-keys", num_input_keys, |
4707d2d0 PJ |
11812 | doc: /* Number of complete key sequences read as input so far. |
11813 | This includes key sequences read from keyboard macros. | |
11814 | The number is effectively the number of interactive command invocations. */); | |
284f4730 JB |
11815 | num_input_keys = 0; |
11816 | ||
29208e82 | 11817 | DEFVAR_INT ("num-nonmacro-input-events", num_nonmacro_input_events, |
4707d2d0 PJ |
11818 | doc: /* Number of input events read from the keyboard so far. |
11819 | This does not include events generated by keyboard macros. */); | |
c43b1734 | 11820 | num_nonmacro_input_events = 0; |
fa90970d | 11821 | |
29208e82 | 11822 | DEFVAR_LISP ("last-event-frame", Vlast_event_frame, |
4707d2d0 PJ |
11823 | doc: /* The frame in which the most recently read event occurred. |
11824 | If the last event came from a keyboard macro, this is set to `macro'. */); | |
4c52b668 KH |
11825 | Vlast_event_frame = Qnil; |
11826 | ||
fa90970d | 11827 | /* This variable is set up in sysdep.c. */ |
29208e82 | 11828 | DEFVAR_LISP ("tty-erase-char", Vtty_erase_char, |
4707d2d0 | 11829 | doc: /* The ERASE character as set by the user with stty. */); |
fa90970d | 11830 | |
29208e82 | 11831 | DEFVAR_LISP ("help-char", Vhelp_char, |
4707d2d0 PJ |
11832 | doc: /* Character to recognize as meaning Help. |
11833 | When it is read, do `(eval help-form)', and display result if it's a string. | |
11834 | If the value of `help-form' is nil, this char can be read normally. */); | |
18cd2eeb | 11835 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 11836 | |
29208e82 | 11837 | DEFVAR_LISP ("help-event-list", Vhelp_event_list, |
4707d2d0 PJ |
11838 | doc: /* List of input events to recognize as meaning Help. |
11839 | These work just like the value of `help-char' (see that). */); | |
ecb7cb34 KH |
11840 | Vhelp_event_list = Qnil; |
11841 | ||
29208e82 | 11842 | DEFVAR_LISP ("help-form", Vhelp_form, |
4707d2d0 PJ |
11843 | doc: /* Form to execute when character `help-char' is read. |
11844 | If the form returns a string, that string is displayed. | |
11845 | If `help-form' is nil, the help char is not recognized. */); | |
284f4730 JB |
11846 | Vhelp_form = Qnil; |
11847 | ||
29208e82 | 11848 | DEFVAR_LISP ("prefix-help-command", Vprefix_help_command, |
4707d2d0 PJ |
11849 | doc: /* Command to run when `help-char' character follows a prefix key. |
11850 | This command is used only when there is no actual binding | |
11851 | for that character after that prefix key. */); | |
7e85b935 RS |
11852 | Vprefix_help_command = Qnil; |
11853 | ||
29208e82 | 11854 | DEFVAR_LISP ("top-level", Vtop_level, |
4707d2d0 PJ |
11855 | doc: /* Form to evaluate when Emacs starts up. |
11856 | Useful to set before you dump a modified Emacs. */); | |
284f4730 JB |
11857 | Vtop_level = Qnil; |
11858 | ||
2e478293 KL |
11859 | DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table, |
11860 | doc: /* Translate table for local keyboard input, or nil. | |
669de2fb LT |
11861 | If non-nil, the value should be a char-table. Each character read |
11862 | from the keyboard is looked up in this char-table. If the value found | |
11863 | there is non-nil, then it is used instead of the actual input character. | |
11864 | ||
11865 | The value can also be a string or vector, but this is considered obsolete. | |
11866 | If it is a string or vector of length N, character codes N and up are left | |
11867 | untranslated. In a vector, an element which is nil means "no translation". | |
a0acc6c7 DL |
11868 | |
11869 | This is applied to the characters supplied to input methods, not their | |
2e478293 KL |
11870 | output. See also `translation-table-for-input'. |
11871 | ||
31c4aaf6 KR |
11872 | This variable has a separate binding for each terminal. |
11873 | See Info node `(elisp)Multiple Terminals'. */); | |
284f4730 | 11874 | |
29208e82 | 11875 | DEFVAR_BOOL ("cannot-suspend", cannot_suspend, |
4707d2d0 PJ |
11876 | doc: /* Non-nil means to always spawn a subshell instead of suspending. |
11877 | \(Even if the operating system has support for stopping a process.\) */); | |
8026024c KH |
11878 | cannot_suspend = 0; |
11879 | ||
29208e82 | 11880 | DEFVAR_BOOL ("menu-prompting", menu_prompting, |
4707d2d0 PJ |
11881 | doc: /* Non-nil means prompt with menus when appropriate. |
11882 | This is done when reading from a keymap that has a prompt string, | |
11883 | for elements that have prompt strings. | |
11884 | The menu is displayed on the screen | |
11885 | if X menus were enabled at configuration | |
11886 | time and the previous event was a mouse click prefix key. | |
11887 | Otherwise, menu prompting uses the echo area. */); | |
284f4730 JB |
11888 | menu_prompting = 1; |
11889 | ||
29208e82 | 11890 | DEFVAR_LISP ("menu-prompt-more-char", menu_prompt_more_char, |
4707d2d0 PJ |
11891 | doc: /* Character to see next line of menu prompt. |
11892 | Type this character while in a menu prompt to rotate around the lines of it. */); | |
18cd2eeb | 11893 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d | 11894 | |
29208e82 | 11895 | DEFVAR_INT ("extra-keyboard-modifiers", extra_keyboard_modifiers, |
4707d2d0 PJ |
11896 | doc: /* A mask of additional modifier keys to use with every keyboard character. |
11897 | Emacs applies the modifiers of the character stored here to each keyboard | |
11898 | character it reads. For example, after evaluating the expression | |
11899 | (setq extra-keyboard-modifiers ?\\C-x) | |
11900 | all input characters will have the control modifier applied to them. | |
11901 | ||
11902 | Note that the character ?\\C-@, equivalent to the integer zero, does | |
11903 | not count as a control character; rather, it counts as a character | |
11904 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero | |
11905 | cancels any modification. */); | |
9fa4395d | 11906 | extra_keyboard_modifiers = 0; |
86e5706b | 11907 | |
29208e82 | 11908 | DEFVAR_LISP ("deactivate-mark", Vdeactivate_mark, |
4707d2d0 PJ |
11909 | doc: /* If an editing command sets this to t, deactivate the mark afterward. |
11910 | The command loop sets this to nil before each command, | |
11911 | and tests the value when the command returns. | |
11912 | Buffer modification stores t in this variable. */); | |
86e5706b | 11913 | Vdeactivate_mark = Qnil; |
d67b4f80 | 11914 | Qdeactivate_mark = intern_c_string ("deactivate-mark"); |
5c4cc82a | 11915 | staticpro (&Qdeactivate_mark); |
86e5706b | 11916 | |
29208e82 | 11917 | DEFVAR_LISP ("command-hook-internal", Vcommand_hook_internal, |
f761d6b6 | 11918 | doc: /* Temporary storage of `pre-command-hook' or `post-command-hook'. */); |
b0f2a7bf KH |
11919 | Vcommand_hook_internal = Qnil; |
11920 | ||
29208e82 | 11921 | DEFVAR_LISP ("pre-command-hook", Vpre_command_hook, |
4707d2d0 PJ |
11922 | doc: /* Normal hook run before each command is executed. |
11923 | If an unhandled error happens in running this hook, | |
11924 | the hook value is set to nil, since otherwise the error | |
11925 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b RS |
11926 | Vpre_command_hook = Qnil; |
11927 | ||
29208e82 | 11928 | DEFVAR_LISP ("post-command-hook", Vpost_command_hook, |
4707d2d0 PJ |
11929 | doc: /* Normal hook run after each command is executed. |
11930 | If an unhandled error happens in running this hook, | |
11931 | the hook value is set to nil, since otherwise the error | |
11932 | might happen repeatedly and make Emacs nonfunctional. */); | |
86e5706b | 11933 | Vpost_command_hook = Qnil; |
48e416d4 | 11934 | |
cf24f894 RS |
11935 | #if 0 |
11936 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
4707d2d0 | 11937 | doc: /* Normal hook run when clearing the echo area. */); |
cf24f894 | 11938 | #endif |
d67b4f80 | 11939 | Qecho_area_clear_hook = intern_c_string ("echo-area-clear-hook"); |
c8e16a02 | 11940 | staticpro (&Qecho_area_clear_hook); |
1373f3be | 11941 | Fset (Qecho_area_clear_hook, Qnil); |
cdb9d665 | 11942 | |
29208e82 | 11943 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", Vlucid_menu_bar_dirty_flag, |
fa1361cb | 11944 | doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */); |
48e416d4 | 11945 | Vlucid_menu_bar_dirty_flag = Qnil; |
a73c5e29 | 11946 | |
29208e82 | 11947 | DEFVAR_LISP ("menu-bar-final-items", Vmenu_bar_final_items, |
4707d2d0 PJ |
11948 | doc: /* List of menu bar items to move to the end of the menu bar. |
11949 | The elements of the list are event types that may have menu bar bindings. */); | |
9f9c0e27 | 11950 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 11951 | |
29208e82 | 11952 | DEFVAR_LISP ("tool-bar-separator-image-expression", Vtool_bar_separator_image_expression, |
94975270 CY |
11953 | doc: /* Expression evaluating to the image spec for a tool-bar separator. |
11954 | This is used internally by graphical displays that do not render | |
11955 | tool-bar separators natively. Otherwise it is unused (e.g. on GTK). */); | |
11956 | Vtool_bar_separator_image_expression = Qnil; | |
11957 | ||
217258d5 KH |
11958 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
11959 | Voverriding_terminal_local_map, | |
4707d2d0 PJ |
11960 | doc: /* Per-terminal keymap that overrides all other local keymaps. |
11961 | If this variable is non-nil, it is used as a keymap instead of the | |
11962 | buffer's local map, and the minor mode keymaps and text property keymaps. | |
5a45dd33 RS |
11963 | It also replaces `overriding-local-map'. |
11964 | ||
4707d2d0 | 11965 | This variable is intended to let commands such as `universal-argument' |
2a42d440 KL |
11966 | set up a different keymap for reading the next command. |
11967 | ||
6ed8eeff KL |
11968 | `overriding-terminal-local-map' has a separate binding for each |
11969 | terminal device. | |
31c4aaf6 | 11970 | See Info node `(elisp)Multiple Terminals'. */); |
217258d5 | 11971 | |
29208e82 | 11972 | DEFVAR_LISP ("overriding-local-map", Voverriding_local_map, |
4707d2d0 | 11973 | doc: /* Keymap that overrides all other local keymaps. |
5a45dd33 RS |
11974 | If this variable is non-nil, it is used as a keymap--replacing the |
11975 | buffer's local map, the minor mode keymaps, and char property keymaps. */); | |
9dd3131c RS |
11976 | Voverriding_local_map = Qnil; |
11977 | ||
29208e82 | 11978 | DEFVAR_LISP ("overriding-local-map-menu-flag", Voverriding_local_map_menu_flag, |
4707d2d0 PJ |
11979 | doc: /* Non-nil means `overriding-local-map' applies to the menu bar. |
11980 | Otherwise, the menu bar continues to reflect the buffer's local map | |
11981 | and the minor mode maps regardless of `overriding-local-map'. */); | |
d0a49716 RS |
11982 | Voverriding_local_map_menu_flag = Qnil; |
11983 | ||
29208e82 | 11984 | DEFVAR_LISP ("special-event-map", Vspecial_event_map, |
4707d2d0 | 11985 | doc: /* Keymap defining bindings for special events to execute at low level. */); |
d67b4f80 | 11986 | Vspecial_event_map = Fcons (intern_c_string ("keymap"), Qnil); |
7f07d5ca | 11987 | |
29208e82 | 11988 | DEFVAR_LISP ("track-mouse", do_mouse_tracking, |
4707d2d0 | 11989 | doc: /* *Non-nil means generate motion events for mouse motion. */); |
80e4aa30 | 11990 | |
7c97ffdc | 11991 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
4707d2d0 PJ |
11992 | doc: /* Alist of system-specific X windows key symbols. |
11993 | Each element should have the form (N . SYMBOL) where N is the | |
11994 | numeric keysym code (sans the \"system-specific\" bit 1<<28) | |
2a42d440 KL |
11995 | and SYMBOL is its name. |
11996 | ||
6ed8eeff | 11997 | `system-key-alist' has a separate binding for each terminal device. |
31c4aaf6 | 11998 | See Info node `(elisp)Multiple Terminals'. */); |
8a792f3a | 11999 | |
ac09dc1e | 12000 | DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map, |
e93b2956 | 12001 | doc: /* Keymap that translates key sequences to key sequences during input. |
4f4a84ec SM |
12002 | This is used mainly for mapping key sequences into some preferred |
12003 | key events (symbols). | |
f01b6d17 KL |
12004 | |
12005 | The `read-key-sequence' function replaces any subsequence bound by | |
7a81ec10 KL |
12006 | `local-function-key-map' with its binding. More precisely, when the |
12007 | active keymaps have no binding for the current key sequence but | |
12008 | `local-function-key-map' binds a suffix of the sequence to a vector or | |
12009 | string, `read-key-sequence' replaces the matching suffix with its | |
12010 | binding, and continues with the new sequence. | |
f01b6d17 | 12011 | |
feba0cd6 KL |
12012 | If the binding is a function, it is called with one argument (the prompt) |
12013 | and its return value (a key sequence) is used. | |
12014 | ||
7a81ec10 KL |
12015 | The events that come from bindings in `local-function-key-map' are not |
12016 | themselves looked up in `local-function-key-map'. | |
f01b6d17 | 12017 | |
7a81ec10 | 12018 | For example, suppose `local-function-key-map' binds `ESC O P' to [f1]. |
f01b6d17 | 12019 | Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing |
7a81ec10 KL |
12020 | `C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key, |
12021 | typing `ESC O P x' would return [f1 x]. | |
f01b6d17 | 12022 | |
6ed8eeff | 12023 | `local-function-key-map' has a separate binding for each terminal |
31c4aaf6 | 12024 | device. See Info node `(elisp)Multiple Terminals'. If you need to |
6ed8eeff | 12025 | define a binding on all terminals, change `function-key-map' |
7a81ec10 | 12026 | instead. Initially, `local-function-key-map' is an empty keymap that |
6ed8eeff | 12027 | has `function-key-map' as its parent on all terminal devices. */); |
f01b6d17 | 12028 | |
4f4a84ec SM |
12029 | DEFVAR_KBOARD ("input-decode-map", Vinput_decode_map, |
12030 | doc: /* Keymap that decodes input escape sequences. | |
12031 | This is used mainly for mapping ASCII function key sequences into | |
12032 | real Emacs function key events (symbols). | |
12033 | ||
12034 | The `read-key-sequence' function replaces any subsequence bound by | |
9d0644c4 | 12035 | `input-decode-map' with its binding. Contrary to `function-key-map', |
4f4a84ec SM |
12036 | this map applies its rebinding regardless of the presence of an ordinary |
12037 | binding. So it is more like `key-translation-map' except that it applies | |
12038 | before `function-key-map' rather than after. | |
12039 | ||
12040 | If the binding is a function, it is called with one argument (the prompt) | |
12041 | and its return value (a key sequence) is used. | |
12042 | ||
12043 | The events that come from bindings in `input-decode-map' are not | |
12044 | themselves looked up in `input-decode-map'. | |
12045 | ||
12046 | This variable is keyboard-local. */); | |
12047 | ||
29208e82 | 12048 | DEFVAR_LISP ("function-key-map", Vfunction_key_map, |
ac09dc1e | 12049 | doc: /* The parent keymap of all `local-function-key-map' instances. |
6ed8eeff | 12050 | Function key definitions that apply to all terminal devices should go |
7a81ec10 KL |
12051 | here. If a mapping is defined in both the current |
12052 | `local-function-key-map' binding and this variable, then the local | |
12053 | definition will take precendence. */); | |
ac09dc1e | 12054 | Vfunction_key_map = Fmake_sparse_keymap (Qnil); |
033b73e2 | 12055 | |
29208e82 | 12056 | DEFVAR_LISP ("key-translation-map", Vkey_translation_map, |
4f4a84ec | 12057 | doc: /* Keymap of key translations that can override keymaps. |
4ea81208 KL |
12058 | This keymap works like `function-key-map', but comes after that, |
12059 | and its non-prefix bindings override ordinary bindings. | |
4f4a84ec | 12060 | Another difference is that it is global rather than keyboard-local. */); |
ac09dc1e | 12061 | Vkey_translation_map = Fmake_sparse_keymap (Qnil); |
8a792f3a | 12062 | |
29208e82 | 12063 | DEFVAR_LISP ("deferred-action-list", Vdeferred_action_list, |
4707d2d0 PJ |
12064 | doc: /* List of deferred actions to be performed at a later time. |
12065 | The precise format isn't relevant here; we just check whether it is nil. */); | |
8a792f3a RS |
12066 | Vdeferred_action_list = Qnil; |
12067 | ||
29208e82 | 12068 | DEFVAR_LISP ("deferred-action-function", Vdeferred_action_function, |
4707d2d0 PJ |
12069 | doc: /* Function to call to handle deferred actions, after each command. |
12070 | This function is called with no arguments after each command | |
12071 | whenever `deferred-action-list' is non-nil. */); | |
8a792f3a | 12072 | Vdeferred_action_function = Qnil; |
6526ab49 | 12073 | |
29208e82 | 12074 | DEFVAR_LISP ("suggest-key-bindings", Vsuggest_key_bindings, |
4707d2d0 PJ |
12075 | doc: /* *Non-nil means show the equivalent key-binding when M-x command has one. |
12076 | The value can be a length of time to show the message for. | |
12077 | If the value is non-nil and not a number, we wait 2 seconds. */); | |
6526ab49 | 12078 | Vsuggest_key_bindings = Qt; |
8bb1c042 | 12079 | |
29208e82 | 12080 | DEFVAR_LISP ("timer-list", Vtimer_list, |
4707d2d0 | 12081 | doc: /* List of active absolute time timers in order of increasing time. */); |
c04cbc3b | 12082 | Vtimer_list = Qnil; |
d9d4c147 | 12083 | |
29208e82 | 12084 | DEFVAR_LISP ("timer-idle-list", Vtimer_idle_list, |
4707d2d0 | 12085 | doc: /* List of active idle-time timers in order of increasing time. */); |
d9d4c147 | 12086 | Vtimer_idle_list = Qnil; |
7d18f9ae | 12087 | |
29208e82 | 12088 | DEFVAR_LISP ("input-method-function", Vinput_method_function, |
4707d2d0 PJ |
12089 | doc: /* If non-nil, the function that implements the current input method. |
12090 | It's called with one argument, a printing character that was just read. | |
12091 | \(That means a character with code 040...0176.) | |
12092 | Typically this function uses `read-event' to read additional events. | |
12093 | When it does so, it should first bind `input-method-function' to nil | |
12094 | so it will not be called recursively. | |
12095 | ||
12096 | The function should return a list of zero or more events | |
12097 | to be used as input. If it wants to put back some events | |
12098 | to be reconsidered, separately, by the input method, | |
12099 | it can add them to the beginning of `unread-command-events'. | |
12100 | ||
f761d6b6 | 12101 | The input method function can find in `input-method-previous-message' |
4707d2d0 PJ |
12102 | the previous echo area message. |
12103 | ||
12104 | The input method function should refer to the variables | |
12105 | `input-method-use-echo-area' and `input-method-exit-on-first-char' | |
12106 | for guidance on what to do. */); | |
7d18f9ae | 12107 | Vinput_method_function = Qnil; |
d5eecefb RS |
12108 | |
12109 | DEFVAR_LISP ("input-method-previous-message", | |
29208e82 | 12110 | Vinput_method_previous_message, |
4707d2d0 PJ |
12111 | doc: /* When `input-method-function' is called, hold the previous echo area message. |
12112 | This variable exists because `read-event' clears the echo area | |
12113 | before running the input method. It is nil if there was no message. */); | |
d5eecefb | 12114 | Vinput_method_previous_message = Qnil; |
7ee32cda | 12115 | |
29208e82 | 12116 | DEFVAR_LISP ("show-help-function", Vshow_help_function, |
4707d2d0 PJ |
12117 | doc: /* If non-nil, the function that implements the display of help. |
12118 | It's called with one argument, the help string to display. */); | |
7ee32cda | 12119 | Vshow_help_function = Qnil; |
adf5cb9c | 12120 | |
29208e82 | 12121 | DEFVAR_LISP ("disable-point-adjustment", Vdisable_point_adjustment, |
4707d2d0 PJ |
12122 | doc: /* If non-nil, suppress point adjustment after executing a command. |
12123 | ||
12124 | After a command is executed, if point is moved into a region that has | |
12125 | special properties (e.g. composition, display), we adjust point to | |
5fee9a2f LT |
12126 | the boundary of the region. But, when a command sets this variable to |
12127 | non-nil, we suppress the point adjustment. | |
4707d2d0 PJ |
12128 | |
12129 | This variable is set to nil before reading a command, and is checked | |
12130 | just after executing the command. */); | |
adf5cb9c KH |
12131 | Vdisable_point_adjustment = Qnil; |
12132 | ||
12133 | DEFVAR_LISP ("global-disable-point-adjustment", | |
29208e82 | 12134 | Vglobal_disable_point_adjustment, |
4707d2d0 PJ |
12135 | doc: /* *If non-nil, always suppress point adjustment. |
12136 | ||
12137 | The default value is nil, in which case, point adjustment are | |
12138 | suppressed only after special commands that set | |
12139 | `disable-point-adjustment' (which see) to non-nil. */); | |
adf5cb9c | 12140 | Vglobal_disable_point_adjustment = Qnil; |
3626fb1a | 12141 | |
29208e82 | 12142 | DEFVAR_LISP ("minibuffer-message-timeout", Vminibuffer_message_timeout, |
4707d2d0 PJ |
12143 | doc: /* *How long to display an echo-area message when the minibuffer is active. |
12144 | If the value is not a number, such messages don't time out. */); | |
00392ce6 | 12145 | Vminibuffer_message_timeout = make_number (2); |
2a84c6da | 12146 | |
29208e82 | 12147 | DEFVAR_LISP ("throw-on-input", Vthrow_on_input, |
2a84c6da KS |
12148 | doc: /* If non-nil, any keyboard input throws to this symbol. |
12149 | The value of that variable is passed to `quit-flag' and later causes a | |
12150 | peculiar kind of quitting. */); | |
12151 | Vthrow_on_input = Qnil; | |
9d56e0da | 12152 | |
29208e82 | 12153 | DEFVAR_LISP ("command-error-function", Vcommand_error_function, |
04d8c47d RS |
12154 | doc: /* If non-nil, function to output error messages. |
12155 | The arguments are the error data, a list of the form | |
12156 | (SIGNALED-CONDITIONS . SIGNAL-DATA) | |
12157 | such as just as `condition-case' would bind its variable to, | |
12158 | the context (a string which normally goes at the start of the message), | |
12159 | and the Lisp function within which the error was signaled. */); | |
12160 | Vcommand_error_function = Qnil; | |
12161 | ||
9d56e0da | 12162 | DEFVAR_LISP ("enable-disabled-menus-and-buttons", |
29208e82 | 12163 | Venable_disabled_menus_and_buttons, |
9d56e0da EZ |
12164 | doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar. |
12165 | ||
12166 | Help functions bind this to allow help on disabled menu items | |
12167 | and tool-bar buttons. */); | |
12168 | Venable_disabled_menus_and_buttons = Qnil; | |
1bc973c2 | 12169 | |
9852377f | 12170 | DEFVAR_LISP ("select-active-regions", |
29208e82 | 12171 | Vselect_active_regions, |
7c420169 | 12172 | doc: /* If non-nil, an active region automatically sets the primary selection. |
7c23dd44 CY |
12173 | If the value is `only', only temporarily active regions (usually made |
12174 | by mouse-dragging or shift-selection) set the window selection. | |
9852377f | 12175 | |
7c23dd44 CY |
12176 | This takes effect only when Transient Mark mode is enabled. */); |
12177 | Vselect_active_regions = Qt; | |
9852377f CY |
12178 | |
12179 | DEFVAR_LISP ("saved-region-selection", | |
29208e82 | 12180 | Vsaved_region_selection, |
9852377f CY |
12181 | doc: /* Contents of active region prior to buffer modification. |
12182 | If `select-active-regions' is non-nil, Emacs sets this to the | |
12183 | text in the region before modifying the buffer. The next | |
12184 | `deactivate-mark' call uses this to set the window selection. */); | |
12185 | Vsaved_region_selection = Qnil; | |
12186 | ||
1bc973c2 SM |
12187 | /* Create the initial keyboard. */ |
12188 | initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); | |
12189 | init_kboard (initial_kboard); | |
12190 | /* Vwindow_system is left at t for now. */ | |
12191 | initial_kboard->next_kboard = all_kboards; | |
12192 | all_kboards = initial_kboard; | |
284f4730 JB |
12193 | } |
12194 | ||
dfcf069d | 12195 | void |
d3da34e0 | 12196 | keys_of_keyboard (void) |
284f4730 JB |
12197 | { |
12198 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
12199 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
12200 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
12201 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
12202 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
12203 | |
12204 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
12205 | "handle-delete-frame"); | |
8612b71a AR |
12206 | initial_define_lispy_key (Vspecial_event_map, "ns-put-working-text", |
12207 | "ns-put-working-text"); | |
12208 | initial_define_lispy_key (Vspecial_event_map, "ns-unput-working-text", | |
12209 | "ns-unput-working-text"); | |
a18bf897 SM |
12210 | /* Here we used to use `ignore-event' which would simple set prefix-arg to |
12211 | current-prefix-arg, as is done in `handle-switch-frame'. | |
12212 | But `handle-switch-frame is not run from the special-map. | |
12213 | Commands from that map are run in a special way that automatically | |
12214 | preserves the prefix-arg. Restoring the prefix arg here is not just | |
12215 | redundant but harmful: | |
12216 | - C-u C-x v = | |
12217 | - current-prefix-arg is set to non-nil, prefix-arg is set to nil. | |
12218 | - after the first prompt, the exit-minibuffer-hook is run which may | |
12219 | iconify a frame and thus push a `iconify-frame' event. | |
12220 | - after running exit-minibuffer-hook, current-prefix-arg is | |
12221 | restored to the non-nil value it had before the prompt. | |
12222 | - we enter the second prompt. | |
12223 | current-prefix-arg is non-nil, prefix-arg is nil. | |
12224 | - before running the first real event, we run the special iconify-frame | |
12225 | event, but we pass the `special' arg to execute-command so | |
12226 | current-prefix-arg and prefix-arg are left untouched. | |
12227 | - here we foolishly copy the non-nil current-prefix-arg to prefix-arg. | |
12228 | - the next key event will have a spuriously non-nil current-prefix-arg. */ | |
7f07d5ca | 12229 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", |
a18bf897 | 12230 | "ignore"); |
7f07d5ca | 12231 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", |
a18bf897 | 12232 | "ignore"); |
a4e19f6e SM |
12233 | /* Handling it at such a low-level causes read_key_sequence to get |
12234 | * confused because it doesn't realize that the current_buffer was | |
12235 | * changed by read_char. | |
6b61353c | 12236 | * |
a4e19f6e SM |
12237 | * initial_define_lispy_key (Vspecial_event_map, "select-window", |
12238 | * "handle-select-window"); */ | |
4ebc27a5 JD |
12239 | initial_define_lispy_key (Vspecial_event_map, "save-session", |
12240 | "handle-save-session"); | |
033b73e2 MA |
12241 | |
12242 | #ifdef HAVE_DBUS | |
12243 | /* Define a special event which is raised for dbus callback | |
12244 | functions. */ | |
12245 | initial_define_lispy_key (Vspecial_event_map, "dbus-event", | |
12246 | "dbus-handle-event"); | |
12247 | #endif | |
637fa988 JD |
12248 | |
12249 | initial_define_lispy_key (Vspecial_event_map, "config-changed-event", | |
12250 | "ignore"); | |
284f4730 | 12251 | } |
1269a761 SM |
12252 | |
12253 | /* Mark the pointers in the kboard objects. | |
12254 | Called by the Fgarbage_collector. */ | |
12255 | void | |
d3da34e0 | 12256 | mark_kboards (void) |
1269a761 SM |
12257 | { |
12258 | KBOARD *kb; | |
12259 | Lisp_Object *p; | |
12260 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
12261 | { | |
12262 | if (kb->kbd_macro_buffer) | |
12263 | for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++) | |
3ebb8729 SM |
12264 | mark_object (*p); |
12265 | mark_object (kb->Voverriding_terminal_local_map); | |
12266 | mark_object (kb->Vlast_command); | |
12267 | mark_object (kb->Vreal_last_command); | |
1d33157f | 12268 | mark_object (kb->Vkeyboard_translate_table); |
d0d3a311 | 12269 | mark_object (kb->Vlast_repeatable_command); |
3ebb8729 SM |
12270 | mark_object (kb->Vprefix_arg); |
12271 | mark_object (kb->Vlast_prefix_arg); | |
12272 | mark_object (kb->kbd_queue); | |
12273 | mark_object (kb->defining_kbd_macro); | |
12274 | mark_object (kb->Vlast_kbd_macro); | |
12275 | mark_object (kb->Vsystem_key_alist); | |
12276 | mark_object (kb->system_key_syms); | |
70b8d0a4 | 12277 | mark_object (kb->Vwindow_system); |
4f4a84ec | 12278 | mark_object (kb->Vinput_decode_map); |
ac09dc1e | 12279 | mark_object (kb->Vlocal_function_key_map); |
3ebb8729 SM |
12280 | mark_object (kb->Vdefault_minibuffer_frame); |
12281 | mark_object (kb->echo_string); | |
1269a761 SM |
12282 | } |
12283 | { | |
12284 | struct input_event *event; | |
12285 | for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++) | |
12286 | { | |
12287 | if (event == kbd_buffer + KBD_BUFFER_SIZE) | |
12288 | event = kbd_buffer; | |
e3f6e7c7 KS |
12289 | if (event->kind != SELECTION_REQUEST_EVENT |
12290 | && event->kind != SELECTION_CLEAR_EVENT) | |
0161caf9 KS |
12291 | { |
12292 | mark_object (event->x); | |
12293 | mark_object (event->y); | |
12294 | } | |
3ebb8729 SM |
12295 | mark_object (event->frame_or_window); |
12296 | mark_object (event->arg); | |
1269a761 SM |
12297 | } |
12298 | } | |
12299 | } |