1 /* Keyboard and mouse input; editor command loop.
2 Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995,
3 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
4 2005 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include "termhooks.h"
38 #include "dispextern.h"
40 #include "intervals.h"
42 #include "blockinput.h"
49 #ifdef HAVE_GTK_AND_PTHREAD
57 #include <sys/ioctl.h>
59 #endif /* not MSDOS */
61 #include "syssignal.h"
64 #include <sys/types.h>
73 /* This is to get the definitions of the XK_ symbols. */
80 #endif /* HAVE_NTGUI */
90 /* Variables for blockinput.h: */
92 /* Non-zero if interrupt input is blocked right now. */
93 int interrupt_input_blocked
;
95 /* Nonzero means an input interrupt has arrived
96 during the current critical section. */
97 int interrupt_input_pending
;
100 /* File descriptor to use for input. */
103 #ifdef HAVE_WINDOW_SYSTEM
104 /* Make all keyboard buffers much bigger when using X windows. */
106 /* But not too big (local data > 32K error) if on Mac OS Classic. */
107 #define KBD_BUFFER_SIZE 512
109 #define KBD_BUFFER_SIZE 4096
111 #else /* No X-windows, character input */
112 #define KBD_BUFFER_SIZE 4096
113 #endif /* No X-windows */
115 #define abs(x) ((x) >= 0 ? (x) : -(x))
117 /* Following definition copied from eval.c */
121 struct backtrace
*next
;
122 Lisp_Object
*function
;
123 Lisp_Object
*args
; /* Points to vector of args. */
124 int nargs
; /* length of vector. If nargs is UNEVALLED,
125 args points to slot holding list of
128 /* Nonzero means call value of debugger when done with this operation. */
133 KBOARD
*initial_kboard
;
134 KBOARD
*current_kboard
;
138 KBOARD the_only_kboard
;
141 /* Non-nil disable property on a command means
142 do not execute it; call disabled-command-function's value instead. */
143 Lisp_Object Qdisabled
, Qdisabled_command_function
;
145 #define NUM_RECENT_KEYS (100)
146 int recent_keys_index
; /* Index for storing next element into recent_keys */
147 int total_keys
; /* Total number of elements stored into recent_keys */
148 Lisp_Object recent_keys
; /* A vector, holding the last 100 keystrokes */
150 /* Vector holding the key sequence that invoked the current command.
151 It is reused for each command, and it may be longer than the current
152 sequence; this_command_key_count indicates how many elements
153 actually mean something.
154 It's easier to staticpro a single Lisp_Object than an array. */
155 Lisp_Object this_command_keys
;
156 int this_command_key_count
;
158 /* 1 after calling Freset_this_command_lengths.
160 int this_command_key_count_reset
;
162 /* This vector is used as a buffer to record the events that were actually read
163 by read_key_sequence. */
164 Lisp_Object raw_keybuf
;
165 int raw_keybuf_count
;
167 #define GROW_RAW_KEYBUF \
168 if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \
170 int newsize = 2 * XVECTOR (raw_keybuf)->size; \
172 new = Fmake_vector (make_number (newsize), Qnil); \
173 bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \
174 raw_keybuf_count * sizeof (Lisp_Object)); \
178 /* Number of elements of this_command_keys
179 that precede this key sequence. */
180 int this_single_command_key_start
;
182 /* Record values of this_command_key_count and echo_length ()
183 before this command was read. */
184 static int before_command_key_count
;
185 static int before_command_echo_length
;
187 extern int minbuf_level
;
189 extern int message_enable_multibyte
;
191 extern struct backtrace
*backtrace_list
;
193 /* If non-nil, the function that implements the display of help.
194 It's called with one argument, the help string to display. */
196 Lisp_Object Vshow_help_function
;
198 /* If a string, the message displayed before displaying a help-echo
201 Lisp_Object Vpre_help_message
;
203 /* Nonzero means do menu prompting. */
205 static int menu_prompting
;
207 /* Character to see next line of menu prompt. */
209 static Lisp_Object menu_prompt_more_char
;
211 /* For longjmp to where kbd input is being done. */
213 static jmp_buf getcjmp
;
215 /* True while doing kbd input. */
216 int waiting_for_input
;
218 /* True while displaying for echoing. Delays C-g throwing. */
222 /* Non-null means we can start echoing at the next input pause even
223 though there is something in the echo area. */
225 static struct kboard
*ok_to_echo_at_next_pause
;
227 /* The kboard last echoing, or null for none. Reset to 0 in
228 cancel_echoing. If non-null, and a current echo area message
229 exists, and echo_message_buffer is eq to the current message
230 buffer, we know that the message comes from echo_kboard. */
232 struct kboard
*echo_kboard
;
234 /* The buffer used for echoing. Set in echo_now, reset in
237 Lisp_Object echo_message_buffer
;
239 /* Nonzero means disregard local maps for the menu bar. */
240 static int inhibit_local_menu_bar_menus
;
242 /* Nonzero means C-g should cause immediate error-signal. */
245 /* The user's ERASE setting. */
246 Lisp_Object Vtty_erase_char
;
248 /* Character to recognize as the help char. */
249 Lisp_Object Vhelp_char
;
251 /* List of other event types to recognize as meaning "help". */
252 Lisp_Object Vhelp_event_list
;
254 /* Form to execute when help char is typed. */
255 Lisp_Object Vhelp_form
;
257 /* Command to run when the help character follows a prefix key. */
258 Lisp_Object Vprefix_help_command
;
260 /* List of items that should move to the end of the menu bar. */
261 Lisp_Object Vmenu_bar_final_items
;
263 /* Non-nil means show the equivalent key-binding for
264 any M-x command that has one.
265 The value can be a length of time to show the message for.
266 If the value is non-nil and not a number, we wait 2 seconds. */
267 Lisp_Object Vsuggest_key_bindings
;
269 /* How long to display an echo-area message when the minibuffer is active.
270 If the value is not a number, such messages don't time out. */
271 Lisp_Object Vminibuffer_message_timeout
;
273 /* Character that causes a quit. Normally C-g.
275 If we are running on an ordinary terminal, this must be an ordinary
276 ASCII char, since we want to make it our interrupt character.
278 If we are not running on an ordinary terminal, it still needs to be
279 an ordinary ASCII char. This character needs to be recognized in
280 the input interrupt handler. At this point, the keystroke is
281 represented as a struct input_event, while the desired quit
282 character is specified as a lispy event. The mapping from struct
283 input_events to lispy events cannot run in an interrupt handler,
284 and the reverse mapping is difficult for anything but ASCII
287 FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
291 extern Lisp_Object current_global_map
;
292 extern int minibuf_level
;
294 /* If non-nil, this is a map that overrides all other local maps. */
295 Lisp_Object Voverriding_local_map
;
297 /* If non-nil, Voverriding_local_map applies to the menu bar. */
298 Lisp_Object Voverriding_local_map_menu_flag
;
300 /* Keymap that defines special misc events that should
301 be processed immediately at a low level. */
302 Lisp_Object Vspecial_event_map
;
304 /* Current depth in recursive edits. */
305 int command_loop_level
;
307 /* Total number of times command_loop has read a key sequence. */
308 EMACS_INT num_input_keys
;
310 /* Last input character read as a command. */
311 Lisp_Object last_command_char
;
313 /* Last input character read as a command, not counting menus
314 reached by the mouse. */
315 Lisp_Object last_nonmenu_event
;
317 /* Last input character read for any purpose. */
318 Lisp_Object last_input_char
;
320 /* If not Qnil, a list of objects to be read as subsequent command input. */
321 Lisp_Object Vunread_command_events
;
323 /* If not Qnil, a list of objects to be read as subsequent command input
324 including input method processing. */
325 Lisp_Object Vunread_input_method_events
;
327 /* If not Qnil, a list of objects to be read as subsequent command input
328 but NOT including input method processing. */
329 Lisp_Object Vunread_post_input_method_events
;
331 /* If not -1, an event to be read as subsequent command input. */
332 EMACS_INT unread_command_char
;
334 /* If not Qnil, this is a switch-frame event which we decided to put
335 off until the end of a key sequence. This should be read as the
336 next command input, after any unread_command_events.
338 read_key_sequence uses this to delay switch-frame events until the
339 end of the key sequence; Fread_char uses it to put off switch-frame
340 events until a non-ASCII event is acceptable as input. */
341 Lisp_Object unread_switch_frame
;
343 /* A mask of extra modifier bits to put into every keyboard char. */
344 EMACS_INT extra_keyboard_modifiers
;
346 /* Char to use as prefix when a meta character is typed in.
347 This is bound on entry to minibuffer in case ESC is changed there. */
349 Lisp_Object meta_prefix_char
;
351 /* Last size recorded for a current buffer which is not a minibuffer. */
352 static int last_non_minibuf_size
;
354 /* Number of idle seconds before an auto-save and garbage collection. */
355 static Lisp_Object Vauto_save_timeout
;
357 /* Total number of times read_char has returned. */
358 int num_input_events
;
360 /* Total number of times read_char has returned, outside of macros. */
361 EMACS_INT num_nonmacro_input_events
;
363 /* Auto-save automatically when this many characters have been typed
364 since the last time. */
366 static EMACS_INT auto_save_interval
;
368 /* Value of num_nonmacro_input_events as of last auto save. */
372 /* The command being executed by the command loop.
373 Commands may set this, and the value set will be copied into
374 current_kboard->Vlast_command instead of the actual command. */
375 Lisp_Object Vthis_command
;
377 /* This is like Vthis_command, except that commands never set it. */
378 Lisp_Object real_this_command
;
380 /* If the lookup of the command returns a binding, the original
381 command is stored in this-original-command. It is nil otherwise. */
382 Lisp_Object Vthis_original_command
;
384 /* The value of point when the last command was executed. */
385 int last_point_position
;
387 /* The buffer that was current when the last command was started. */
388 Lisp_Object last_point_position_buffer
;
390 /* The frame in which the last input event occurred, or Qmacro if the
391 last event came from a macro. We use this to determine when to
392 generate switch-frame events. This may be cleared by functions
393 like Fselect_frame, to make sure that a switch-frame event is
394 generated by the next character. */
395 Lisp_Object internal_last_event_frame
;
397 /* A user-visible version of the above, intended to allow users to
398 figure out where the last event came from, if the event doesn't
399 carry that information itself (i.e. if it was a character). */
400 Lisp_Object Vlast_event_frame
;
402 /* The timestamp of the last input event we received from the X server.
403 X Windows wants this for selection ownership. */
404 unsigned long last_event_timestamp
;
406 Lisp_Object Qself_insert_command
;
407 Lisp_Object Qforward_char
;
408 Lisp_Object Qbackward_char
;
409 Lisp_Object Qundefined
;
410 Lisp_Object Qtimer_event_handler
;
412 /* read_key_sequence stores here the command definition of the
413 key sequence that it reads. */
414 Lisp_Object read_key_sequence_cmd
;
416 /* Echo unfinished commands after this many seconds of pause. */
417 Lisp_Object Vecho_keystrokes
;
419 /* Form to evaluate (if non-nil) when Emacs is started. */
420 Lisp_Object Vtop_level
;
422 /* User-supplied table to translate input characters. */
423 Lisp_Object Vkeyboard_translate_table
;
425 /* Keymap mapping ASCII function key sequences onto their preferred forms. */
426 extern Lisp_Object Vfunction_key_map
;
428 /* Another keymap that maps key sequences into key sequences.
429 This one takes precedence over ordinary definitions. */
430 extern Lisp_Object Vkey_translation_map
;
432 /* If non-nil, this implements the current input method. */
433 Lisp_Object Vinput_method_function
;
434 Lisp_Object Qinput_method_function
;
436 /* When we call Vinput_method_function,
437 this holds the echo area message that was just erased. */
438 Lisp_Object Vinput_method_previous_message
;
440 /* Non-nil means deactivate the mark at end of this command. */
441 Lisp_Object Vdeactivate_mark
;
443 /* Menu bar specified in Lucid Emacs fashion. */
445 Lisp_Object Vlucid_menu_bar_dirty_flag
;
446 Lisp_Object Qrecompute_lucid_menubar
, Qactivate_menubar_hook
;
448 Lisp_Object Qecho_area_clear_hook
;
450 /* Hooks to run before and after each command. */
451 Lisp_Object Qpre_command_hook
, Vpre_command_hook
;
452 Lisp_Object Qpost_command_hook
, Vpost_command_hook
;
453 Lisp_Object Qcommand_hook_internal
, Vcommand_hook_internal
;
455 /* List of deferred actions to be performed at a later time.
456 The precise format isn't relevant here; we just check whether it is nil. */
457 Lisp_Object Vdeferred_action_list
;
459 /* Function to call to handle deferred actions, when there are any. */
460 Lisp_Object Vdeferred_action_function
;
461 Lisp_Object Qdeferred_action_function
;
463 Lisp_Object Qinput_method_exit_on_first_char
;
464 Lisp_Object Qinput_method_use_echo_area
;
466 /* File in which we write all commands we read. */
469 /* Nonzero if input is available. */
472 /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should
473 keep 0200 bit in input chars. 0 to ignore the 0200 bit. */
477 /* Non-zero means force key bindings update in parse_menu_item. */
479 int update_menu_bindings
;
481 extern char *pending_malloc_warning
;
483 /* Circular buffer for pre-read keyboard input. */
485 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
487 /* Pointer to next available character in kbd_buffer.
488 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
489 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
490 next available char is in kbd_buffer[0]. */
491 static struct input_event
*kbd_fetch_ptr
;
493 /* Pointer to next place to store character in kbd_buffer. This
494 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
495 character should go in kbd_buffer[0]. */
496 static struct input_event
* volatile kbd_store_ptr
;
498 /* The above pair of variables forms a "queue empty" flag. When we
499 enqueue a non-hook event, we increment kbd_store_ptr. When we
500 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
501 there is input available iff the two pointers are not equal.
503 Why not just have a flag set and cleared by the enqueuing and
504 dequeuing functions? Such a flag could be screwed up by interrupts
505 at inopportune times. */
507 /* If this flag is non-nil, we check mouse_moved to see when the
508 mouse moves, and motion events will appear in the input stream.
509 Otherwise, mouse motion is ignored. */
510 Lisp_Object do_mouse_tracking
;
512 /* Symbols to head events. */
513 Lisp_Object Qmouse_movement
;
514 Lisp_Object Qscroll_bar_movement
;
515 Lisp_Object Qswitch_frame
;
516 Lisp_Object Qdelete_frame
;
517 Lisp_Object Qiconify_frame
;
518 Lisp_Object Qmake_frame_visible
;
519 Lisp_Object Qselect_window
;
520 Lisp_Object Qhelp_echo
;
523 Lisp_Object Qmouse_fixup_help_message
;
526 /* Symbols to denote kinds of events. */
527 Lisp_Object Qfunction_key
;
528 Lisp_Object Qmouse_click
;
529 #if defined (WINDOWSNT) || defined (MAC_OS)
530 Lisp_Object Qlanguage_change
;
532 Lisp_Object Qdrag_n_drop
;
533 Lisp_Object Qsave_session
;
535 /* Lisp_Object Qmouse_movement; - also an event header */
537 /* Properties of event headers. */
538 Lisp_Object Qevent_kind
;
539 Lisp_Object Qevent_symbol_elements
;
541 /* menu item parts */
542 Lisp_Object Qmenu_alias
;
543 Lisp_Object Qmenu_enable
;
544 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
545 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
546 extern Lisp_Object Vdefine_key_rebound_commands
;
547 extern Lisp_Object Qmenu_item
;
549 /* An event header symbol HEAD may have a property named
550 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
551 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
552 mask of modifiers applied to it. If present, this is used to help
553 speed up parse_modifiers. */
554 Lisp_Object Qevent_symbol_element_mask
;
556 /* An unmodified event header BASE may have a property named
557 Qmodifier_cache, which is an alist mapping modifier masks onto
558 modified versions of BASE. If present, this helps speed up
560 Lisp_Object Qmodifier_cache
;
562 /* Symbols to use for parts of windows. */
563 Lisp_Object Qmode_line
;
564 Lisp_Object Qvertical_line
;
565 Lisp_Object Qvertical_scroll_bar
;
566 Lisp_Object Qmenu_bar
;
567 extern Lisp_Object Qleft_margin
, Qright_margin
;
568 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
569 extern Lisp_Object QCmap
;
571 Lisp_Object
recursive_edit_unwind (), command_loop ();
572 Lisp_Object
Fthis_command_keys ();
573 Lisp_Object Qextended_command_history
;
574 EMACS_TIME
timer_check ();
576 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
578 extern char *x_get_keysym_name ();
580 static void record_menu_key ();
581 static int echo_length ();
583 Lisp_Object Qpolling_period
;
585 /* List of absolute timers. Appears in order of next scheduled event. */
586 Lisp_Object Vtimer_list
;
588 /* List of idle time timers. Appears in order of next scheduled event. */
589 Lisp_Object Vtimer_idle_list
;
591 /* Incremented whenever a timer is run. */
594 extern Lisp_Object Vprint_level
, Vprint_length
;
596 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
598 EMACS_TIME
*input_available_clear_time
;
600 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
601 Default is 1 if INTERRUPT_INPUT is defined. */
604 /* Nonzero while interrupts are temporarily deferred during redisplay. */
605 int interrupts_deferred
;
607 /* Nonzero means use ^S/^Q for flow control. */
610 /* Allow m- file to inhibit use of FIONREAD. */
611 #ifdef BROKEN_FIONREAD
615 /* We are unable to use interrupts if FIONREAD is not available,
616 so flush SIGIO so we won't try. */
617 #if !defined (FIONREAD)
623 /* If we support a window system, turn on the code to poll periodically
624 to detect C-g. It isn't actually used when doing interrupt input. */
625 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
626 #define POLL_FOR_INPUT
629 /* After a command is executed, if point is moved into a region that
630 has specific properties (e.g. composition, display), we adjust
631 point to the boundary of the region. But, if a command sets this
632 variable to non-nil, we suppress this point adjustment. This
633 variable is set to nil before reading a command. */
635 Lisp_Object Vdisable_point_adjustment
;
637 /* If non-nil, always disable point adjustment. */
639 Lisp_Object Vglobal_disable_point_adjustment
;
641 /* The time when Emacs started being idle. */
643 static EMACS_TIME timer_idleness_start_time
;
645 /* After Emacs stops being idle, this saves the last value
646 of timer_idleness_start_time from when it was idle. */
648 static EMACS_TIME timer_last_idleness_start_time
;
651 /* Global variable declarations. */
653 /* Flags for readable_events. */
654 #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
655 #define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
656 #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
658 /* Function for init_keyboard to call with no args (if nonzero). */
659 void (*keyboard_init_hook
) ();
661 static int read_avail_input
P_ ((int));
662 static void get_input_pending
P_ ((int *, int));
663 static int readable_events
P_ ((int));
664 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
665 Lisp_Object
, int *));
666 static Lisp_Object
read_char_x_menu_prompt ();
667 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
669 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
671 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
672 enum scroll_bar_part
,
673 Lisp_Object
, Lisp_Object
,
676 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
677 Lisp_Object
, char **,
678 Lisp_Object
*, unsigned));
679 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
680 static int parse_solitary_modifier
P_ ((Lisp_Object
));
681 static int parse_solitary_modifier ();
682 static void save_getcjmp
P_ ((jmp_buf));
683 static void save_getcjmp ();
684 static void restore_getcjmp
P_ ((jmp_buf));
685 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
686 static void clear_event
P_ ((struct input_event
*));
687 static void any_kboard_state
P_ ((void));
688 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
689 static void timer_start_idle
P_ ((void));
690 static void timer_stop_idle
P_ ((void));
691 static void timer_resume_idle
P_ ((void));
693 /* Nonzero means don't try to suspend even if the operating system seems
695 static int cannot_suspend
;
697 extern Lisp_Object Qidentity
, Qonly
;
699 /* Install the string STR as the beginning of the string of echoing,
700 so that it serves as a prompt for the next character.
701 Also start echoing. */
707 current_kboard
->echo_string
= str
;
708 current_kboard
->echo_after_prompt
= SCHARS (str
);
712 /* Add C to the echo string, if echoing is going on.
713 C can be a character, which is printed prettily ("M-C-x" and all that
714 jazz), or a symbol, whose name is printed. */
720 if (current_kboard
->immediate_echo
)
722 int size
= KEY_DESCRIPTION_SIZE
+ 100;
723 char *buffer
= (char *) alloca (size
);
725 Lisp_Object echo_string
;
727 echo_string
= current_kboard
->echo_string
;
729 /* If someone has passed us a composite event, use its head symbol. */
734 ptr
= push_key_description (XINT (c
), ptr
, 1);
736 else if (SYMBOLP (c
))
738 Lisp_Object name
= SYMBOL_NAME (c
);
739 int nbytes
= SBYTES (name
);
741 if (size
- (ptr
- buffer
) < nbytes
)
743 int offset
= ptr
- buffer
;
744 size
= max (2 * size
, size
+ nbytes
);
745 buffer
= (char *) alloca (size
);
746 ptr
= buffer
+ offset
;
749 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
750 STRING_MULTIBYTE (name
), 1);
753 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
756 const char *text
= " (Type ? for further options)";
757 int len
= strlen (text
);
759 if (size
- (ptr
- buffer
) < len
)
761 int offset
= ptr
- buffer
;
763 buffer
= (char *) alloca (size
);
764 ptr
= buffer
+ offset
;
767 bcopy (text
, ptr
, len
);
771 /* Replace a dash from echo_dash with a space, otherwise
772 add a space at the end as a separator between keys. */
773 if (STRINGP (echo_string
)
774 && SCHARS (echo_string
) > 1)
776 Lisp_Object last_char
, prev_char
, idx
;
778 idx
= make_number (SCHARS (echo_string
) - 2);
779 prev_char
= Faref (echo_string
, idx
);
781 idx
= make_number (SCHARS (echo_string
) - 1);
782 last_char
= Faref (echo_string
, idx
);
784 /* We test PREV_CHAR to make sure this isn't the echoing
786 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
787 Faset (echo_string
, idx
, make_number (' '));
789 echo_string
= concat2 (echo_string
, build_string (" "));
792 current_kboard
->echo_string
793 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
799 /* Temporarily add a dash to the end of the echo string if it's not
800 empty, so that it serves as a mini-prompt for the very next character. */
805 /* Do nothing if not echoing at all. */
806 if (NILP (current_kboard
->echo_string
))
809 if (!current_kboard
->immediate_echo
810 && SCHARS (current_kboard
->echo_string
) == 0)
813 /* Do nothing if we just printed a prompt. */
814 if (current_kboard
->echo_after_prompt
815 == SCHARS (current_kboard
->echo_string
))
818 /* Do nothing if we have already put a dash at the end. */
819 if (SCHARS (current_kboard
->echo_string
) > 1)
821 Lisp_Object last_char
, prev_char
, idx
;
823 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 2);
824 prev_char
= Faref (current_kboard
->echo_string
, idx
);
826 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 1);
827 last_char
= Faref (current_kboard
->echo_string
, idx
);
829 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
833 /* Put a dash at the end of the buffer temporarily,
834 but make it go away when the next character is added. */
835 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
840 /* Display the current echo string, and begin echoing if not already
846 if (!current_kboard
->immediate_echo
)
849 current_kboard
->immediate_echo
= 1;
851 for (i
= 0; i
< this_command_key_count
; i
++)
855 /* Set before_command_echo_length to the value that would
856 have been saved before the start of this subcommand in
857 command_loop_1, if we had already been echoing then. */
858 if (i
== this_single_command_key_start
)
859 before_command_echo_length
= echo_length ();
861 c
= XVECTOR (this_command_keys
)->contents
[i
];
862 if (! (EVENT_HAS_PARAMETERS (c
)
863 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
867 /* Set before_command_echo_length to the value that would
868 have been saved before the start of this subcommand in
869 command_loop_1, if we had already been echoing then. */
870 if (this_command_key_count
== this_single_command_key_start
)
871 before_command_echo_length
= echo_length ();
873 /* Put a dash at the end to invite the user to type more. */
878 message3_nolog (current_kboard
->echo_string
,
879 SBYTES (current_kboard
->echo_string
),
880 STRING_MULTIBYTE (current_kboard
->echo_string
));
883 /* Record in what buffer we echoed, and from which kboard. */
884 echo_message_buffer
= echo_area_buffer
[0];
885 echo_kboard
= current_kboard
;
887 if (waiting_for_input
&& !NILP (Vquit_flag
))
888 quit_throw_to_read_char ();
891 /* Turn off echoing, for the start of a new command. */
896 current_kboard
->immediate_echo
= 0;
897 current_kboard
->echo_after_prompt
= -1;
898 current_kboard
->echo_string
= Qnil
;
899 ok_to_echo_at_next_pause
= NULL
;
901 echo_message_buffer
= Qnil
;
904 /* Return the length of the current echo string. */
909 return (STRINGP (current_kboard
->echo_string
)
910 ? SCHARS (current_kboard
->echo_string
)
914 /* Truncate the current echo message to its first LEN chars.
915 This and echo_char get used by read_key_sequence when the user
916 switches frames while entering a key sequence. */
919 echo_truncate (nchars
)
922 if (STRINGP (current_kboard
->echo_string
))
923 current_kboard
->echo_string
924 = Fsubstring (current_kboard
->echo_string
,
925 make_number (0), make_number (nchars
));
926 truncate_echo_area (nchars
);
930 /* Functions for manipulating this_command_keys. */
932 add_command_key (key
)
935 #if 0 /* Not needed after we made Freset_this_command_lengths
936 do the job immediately. */
937 /* If reset-this-command-length was called recently, obey it now.
938 See the doc string of that function for an explanation of why. */
939 if (before_command_restore_flag
)
941 this_command_key_count
= before_command_key_count_1
;
942 if (this_command_key_count
< this_single_command_key_start
)
943 this_single_command_key_start
= this_command_key_count
;
944 echo_truncate (before_command_echo_length_1
);
945 before_command_restore_flag
= 0;
949 if (this_command_key_count
>= ASIZE (this_command_keys
))
950 this_command_keys
= larger_vector (this_command_keys
,
951 2 * ASIZE (this_command_keys
),
954 AREF (this_command_keys
, this_command_key_count
) = key
;
955 ++this_command_key_count
;
962 int count
= SPECPDL_INDEX ();
965 if (command_loop_level
> 0)
967 specbind (Qstandard_output
, Qt
);
968 specbind (Qstandard_input
, Qt
);
971 #ifdef HAVE_X_WINDOWS
972 /* The command loop has started an hourglass timer, so we have to
973 cancel it here, otherwise it will fire because the recursive edit
974 can take some time. Do not check for display_hourglass_p here,
975 because it could already be nil. */
979 /* This function may have been called from a debugger called from
980 within redisplay, for instance by Edebugging a function called
981 from fontification-functions. We want to allow redisplay in
982 the debugging session.
984 The recursive edit is left with a `(throw exit ...)'. The `exit'
985 tag is not caught anywhere in redisplay, i.e. when we leave the
986 recursive edit, the original redisplay leading to the recursive
987 edit will be unwound. The outcome should therefore be safe. */
988 specbind (Qinhibit_redisplay
, Qnil
);
991 val
= command_loop ();
993 Fsignal (Qquit
, Qnil
);
994 /* Handle throw from read_minibuf when using minibuffer
995 while it's active but we're in another window. */
997 Fsignal (Qerror
, Fcons (val
, Qnil
));
999 return unbind_to (count
, Qnil
);
1002 /* When an auto-save happens, record the "time", and don't do again soon. */
1007 last_auto_save
= num_nonmacro_input_events
;
1010 /* Make an auto save happen as soon as possible at command level. */
1013 force_auto_save_soon ()
1015 last_auto_save
= - auto_save_interval
- 1;
1017 record_asynch_buffer_change ();
1020 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
1021 doc
: /* Invoke the editor command loop recursively.
1022 To get out of the recursive edit, a command can do `(throw 'exit nil)';
1023 that tells this function to return.
1024 Alternatively, `(throw 'exit t)' makes this function signal an error.
1025 This function is called by the editor initialization to begin editing. */)
1028 int count
= SPECPDL_INDEX ();
1031 /* If we enter while input is blocked, don't lock up here.
1032 This may happen through the debugger during redisplay. */
1033 if (INPUT_BLOCKED_P
)
1036 command_loop_level
++;
1037 update_mode_lines
= 1;
1039 if (command_loop_level
1040 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
1041 buffer
= Fcurrent_buffer ();
1045 /* If we leave recursive_edit_1 below with a `throw' for instance,
1046 like it is done in the splash screen display, we have to
1047 make sure that we restore single_kboard as command_loop_1
1048 would have done if it were left normally. */
1049 record_unwind_protect (recursive_edit_unwind
,
1050 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1052 recursive_edit_1 ();
1053 return unbind_to (count
, Qnil
);
1057 recursive_edit_unwind (info
)
1060 if (BUFFERP (XCAR (info
)))
1061 Fset_buffer (XCAR (info
));
1063 if (NILP (XCDR (info
)))
1064 any_kboard_state ();
1066 single_kboard_state ();
1068 command_loop_level
--;
1069 update_mode_lines
= 1;
1078 #if 0 /* Theory: if there's anything in Vunread_command_events,
1079 it will right away be read by read_key_sequence,
1080 and then if we do switch KBOARDS, it will go into the side
1081 queue then. So we don't need to do anything special here -- rms. */
1082 if (CONSP (Vunread_command_events
))
1084 current_kboard
->kbd_queue
1085 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1086 current_kboard
->kbd_queue_has_data
= 1;
1088 Vunread_command_events
= Qnil
;
1094 /* Switch to the single-kboard state, making current_kboard
1095 the only KBOARD from which further input is accepted. */
1098 single_kboard_state ()
1105 /* If we're in single_kboard state for kboard KBOARD,
1109 not_single_kboard_state (kboard
)
1113 if (kboard
== current_kboard
)
1118 /* Maintain a stack of kboards, so other parts of Emacs
1119 can switch temporarily to the kboard of a given frame
1120 and then revert to the previous status. */
1125 struct kboard_stack
*next
;
1128 static struct kboard_stack
*kboard_stack
;
1131 push_frame_kboard (f
)
1135 struct kboard_stack
*p
1136 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1138 p
->next
= kboard_stack
;
1139 p
->kboard
= current_kboard
;
1142 current_kboard
= FRAME_KBOARD (f
);
1150 struct kboard_stack
*p
= kboard_stack
;
1151 current_kboard
= p
->kboard
;
1152 kboard_stack
= p
->next
;
1157 /* Handle errors that are not handled at inner levels
1158 by printing an error message and returning to the editor command loop. */
1164 Lisp_Object old_level
, old_length
;
1165 char macroerror
[50];
1167 #ifdef HAVE_X_WINDOWS
1168 if (display_hourglass_p
)
1169 cancel_hourglass ();
1172 if (!NILP (executing_kbd_macro
))
1174 if (executing_kbd_macro_iterations
== 1)
1175 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1177 sprintf (macroerror
, "After %d kbd macro iterations: ",
1178 executing_kbd_macro_iterations
);
1183 Vstandard_output
= Qt
;
1184 Vstandard_input
= Qt
;
1185 Vexecuting_kbd_macro
= Qnil
;
1186 executing_kbd_macro
= Qnil
;
1187 current_kboard
->Vprefix_arg
= Qnil
;
1188 current_kboard
->Vlast_prefix_arg
= Qnil
;
1191 /* Avoid unquittable loop if data contains a circular list. */
1192 old_level
= Vprint_level
;
1193 old_length
= Vprint_length
;
1194 XSETFASTINT (Vprint_level
, 10);
1195 XSETFASTINT (Vprint_length
, 10);
1196 cmd_error_internal (data
, macroerror
);
1197 Vprint_level
= old_level
;
1198 Vprint_length
= old_length
;
1202 Vinhibit_quit
= Qnil
;
1204 if (command_loop_level
== 0 && minibuf_level
== 0)
1205 any_kboard_state ();
1208 return make_number (0);
1211 /* Take actions on handling an error. DATA is the data that describes
1214 CONTEXT is a C-string containing ASCII characters only which
1215 describes the context in which the error happened. If we need to
1216 generalize CONTEXT to allow multibyte characters, make it a Lisp
1220 cmd_error_internal (data
, context
)
1225 int kill_emacs_p
= 0;
1226 struct frame
*sf
= SELECTED_FRAME ();
1230 clear_message (1, 0);
1232 /* If the window system or terminal frame hasn't been initialized
1233 yet, or we're not interactive, it's best to dump this message out
1234 to stderr and exit. */
1235 if (!sf
->glyphs_initialized_p
1236 /* This is the case of the frame dumped with Emacs, when we're
1237 running under a window system. */
1238 || (!NILP (Vwindow_system
)
1239 && !inhibit_window_system
1240 && FRAME_TERMCAP_P (sf
))
1243 stream
= Qexternal_debugging_output
;
1249 message_log_maybe_newline ();
1254 /* The immediate context is not interesting for Quits,
1255 since they are asyncronous. */
1256 if (EQ (XCAR (data
), Qquit
))
1257 Vsignaling_function
= Qnil
;
1259 print_error_message (data
, stream
, context
, Vsignaling_function
);
1261 Vsignaling_function
= Qnil
;
1263 /* If the window system or terminal frame hasn't been initialized
1264 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1268 Fkill_emacs (make_number (-1));
1272 Lisp_Object
command_loop_1 ();
1273 Lisp_Object
command_loop_2 ();
1274 Lisp_Object
top_level_1 ();
1276 /* Entry to editor-command-loop.
1277 This level has the catches for exiting/returning to editor command loop.
1278 It returns nil to exit recursive edit, t to abort it. */
1283 if (command_loop_level
> 0 || minibuf_level
> 0)
1286 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1287 executing_kbd_macro
= Qnil
;
1293 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1294 /* Reset single_kboard in case top-level set it while
1295 evaluating an -f option, or we are stuck there for some
1297 any_kboard_state ();
1298 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1299 executing_kbd_macro
= Qnil
;
1301 /* End of file in -batch run causes exit here. */
1307 /* Here we catch errors in execution of commands within the
1308 editing loop, and reenter the editing loop.
1309 When there is an error, cmd_error runs and returns a non-nil
1310 value to us. A value of nil means that command_loop_1 itself
1311 returned due to end of file (or end of kbd macro). */
1316 register Lisp_Object val
;
1319 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1320 while (!NILP (val
));
1328 return Feval (Vtop_level
);
1334 /* On entry to the outer level, run the startup file */
1335 if (!NILP (Vtop_level
))
1336 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1337 else if (!NILP (Vpurify_flag
))
1338 message ("Bare impure Emacs (standard Lisp code not loaded)");
1340 message ("Bare Emacs (standard Lisp code not loaded)");
1344 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1345 doc
: /* Exit all recursive editing levels. */)
1348 #ifdef HAVE_X_WINDOWS
1349 if (display_hourglass_p
)
1350 cancel_hourglass ();
1353 /* Unblock input if we enter with input blocked. This may happen if
1354 redisplay traps e.g. during tool-bar update with input blocked. */
1355 while (INPUT_BLOCKED_P
)
1358 return Fthrow (Qtop_level
, Qnil
);
1361 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1362 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1365 if (command_loop_level
> 0 || minibuf_level
> 0)
1366 Fthrow (Qexit
, Qnil
);
1368 error ("No recursive edit is in progress");
1372 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1373 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1376 if (command_loop_level
> 0 || minibuf_level
> 0)
1379 error ("No recursive edit is in progress");
1383 /* This is the actual command reading loop,
1384 sans error-handling encapsulation. */
1386 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1388 void safe_run_hooks
P_ ((Lisp_Object
));
1389 static void adjust_point_for_property
P_ ((int, int));
1391 /* Cancel hourglass from protect_unwind.
1393 #ifdef HAVE_X_WINDOWS
1395 cancel_hourglass_unwind (arg
)
1398 cancel_hourglass ();
1409 Lisp_Object keybuf
[30];
1413 struct buffer
*prev_buffer
= NULL
;
1415 int was_locked
= single_kboard
;
1417 int already_adjusted
;
1419 current_kboard
->Vprefix_arg
= Qnil
;
1420 current_kboard
->Vlast_prefix_arg
= Qnil
;
1421 Vdeactivate_mark
= Qnil
;
1422 waiting_for_input
= 0;
1426 this_command_key_count
= 0;
1427 this_command_key_count_reset
= 0;
1428 this_single_command_key_start
= 0;
1430 if (NILP (Vmemory_full
))
1432 /* Make sure this hook runs after commands that get errors and
1433 throw to top level. */
1434 /* Note that the value cell will never directly contain nil
1435 if the symbol is a local variable. */
1436 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1437 safe_run_hooks (Qpost_command_hook
);
1439 /* If displaying a message, resize the echo area window to fit
1440 that message's size exactly. */
1441 if (!NILP (echo_area_buffer
[0]))
1442 resize_echo_area_exactly ();
1444 if (!NILP (Vdeferred_action_list
))
1445 safe_run_hooks (Qdeferred_action_function
);
1448 Vmemory_full
= Qnil
;
1450 /* Do this after running Vpost_command_hook, for consistency. */
1451 current_kboard
->Vlast_command
= Vthis_command
;
1452 current_kboard
->Vreal_last_command
= real_this_command
;
1456 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1459 /* Make sure the current window's buffer is selected. */
1460 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1461 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1463 /* Display any malloc warning that just came out. Use while because
1464 displaying one warning can cause another. */
1466 while (pending_malloc_warning
)
1467 display_malloc_warning ();
1471 Vdeactivate_mark
= Qnil
;
1473 /* If minibuffer on and echo area in use,
1474 wait a short time and redraw minibuffer. */
1477 && !NILP (echo_area_buffer
[0])
1478 && EQ (minibuf_window
, echo_area_window
)
1479 && NUMBERP (Vminibuffer_message_timeout
))
1481 /* Bind inhibit-quit to t so that C-g gets read in
1482 rather than quitting back to the minibuffer. */
1483 int count
= SPECPDL_INDEX ();
1484 specbind (Qinhibit_quit
, Qt
);
1486 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1487 /* Clear the echo area. */
1489 safe_run_hooks (Qecho_area_clear_hook
);
1491 unbind_to (count
, Qnil
);
1493 /* If a C-g came in before, treat it as input now. */
1494 if (!NILP (Vquit_flag
))
1497 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1502 alloca (0); /* Cause a garbage collection now */
1503 /* Since we can free the most stuff here. */
1504 #endif /* C_ALLOCA */
1507 /* Select the frame that the last event came from. Usually,
1508 switch-frame events will take care of this, but if some lisp
1509 code swallows a switch-frame event, we'll fix things up here.
1510 Is this a good idea? */
1511 if (FRAMEP (internal_last_event_frame
)
1512 && !EQ (internal_last_event_frame
, selected_frame
))
1513 Fselect_frame (internal_last_event_frame
);
1515 /* If it has changed current-menubar from previous value,
1516 really recompute the menubar from the value. */
1517 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1518 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1519 call0 (Qrecompute_lucid_menubar
);
1521 before_command_key_count
= this_command_key_count
;
1522 before_command_echo_length
= echo_length ();
1524 Vthis_command
= Qnil
;
1525 real_this_command
= Qnil
;
1526 Vthis_original_command
= Qnil
;
1528 /* Read next key sequence; i gets its length. */
1529 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1532 /* A filter may have run while we were reading the input. */
1533 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1535 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1536 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1540 /* Now we have read a key sequence of length I,
1541 or else I is 0 and we found end of file. */
1543 if (i
== 0) /* End of file -- happens only in */
1544 return Qnil
; /* a kbd macro, at the end. */
1545 /* -1 means read_key_sequence got a menu that was rejected.
1546 Just loop around and read another command. */
1550 this_command_key_count
= 0;
1551 this_command_key_count_reset
= 0;
1552 this_single_command_key_start
= 0;
1556 last_command_char
= keybuf
[i
- 1];
1558 /* If the previous command tried to force a specific window-start,
1559 forget about that, in case this command moves point far away
1560 from that position. But also throw away beg_unchanged and
1561 end_unchanged information in that case, so that redisplay will
1562 update the whole window properly. */
1563 if (!NILP (XWINDOW (selected_window
)->force_start
))
1566 XWINDOW (selected_window
)->force_start
= Qnil
;
1567 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1568 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1571 cmd
= read_key_sequence_cmd
;
1572 if (!NILP (Vexecuting_kbd_macro
))
1574 if (!NILP (Vquit_flag
))
1576 Vexecuting_kbd_macro
= Qt
;
1577 QUIT
; /* Make some noise. */
1578 /* Will return since macro now empty. */
1582 /* Do redisplay processing after this command except in special
1583 cases identified below. */
1584 prev_buffer
= current_buffer
;
1585 prev_modiff
= MODIFF
;
1586 last_point_position
= PT
;
1587 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1589 /* By default, we adjust point to a boundary of a region that
1590 has such a property that should be treated intangible
1591 (e.g. composition, display). But, some commands will set
1592 this variable differently. */
1593 Vdisable_point_adjustment
= Qnil
;
1595 /* Process filters and timers may have messed with deactivate-mark.
1596 reset it before we execute the command. */
1597 Vdeactivate_mark
= Qnil
;
1599 /* Remap command through active keymaps */
1600 Vthis_original_command
= cmd
;
1604 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1608 /* Execute the command. */
1610 Vthis_command
= cmd
;
1611 real_this_command
= cmd
;
1612 /* Note that the value cell will never directly contain nil
1613 if the symbol is a local variable. */
1614 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1615 safe_run_hooks (Qpre_command_hook
);
1617 already_adjusted
= 0;
1619 if (NILP (Vthis_command
))
1621 /* nil means key is undefined. */
1622 Lisp_Object keys
= Fvector (i
, keybuf
);
1623 keys
= Fkey_description (keys
, Qnil
);
1625 message_with_string ("%s is undefined", keys
, 0);
1626 current_kboard
->defining_kbd_macro
= Qnil
;
1627 update_mode_lines
= 1;
1628 current_kboard
->Vprefix_arg
= Qnil
;
1632 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1634 /* In case we jump to directly_done. */
1635 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1637 /* Recognize some common commands in common situations and
1638 do them directly. */
1639 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1641 struct Lisp_Char_Table
*dp
1642 = window_display_table (XWINDOW (selected_window
));
1643 lose
= FETCH_CHAR (PT_BYTE
);
1645 if (! NILP (Vpost_command_hook
))
1646 /* Put this before calling adjust_point_for_property
1647 so it will only get called once in any case. */
1649 if (current_buffer
== prev_buffer
1650 && last_point_position
!= PT
1651 && NILP (Vdisable_point_adjustment
)
1652 && NILP (Vglobal_disable_point_adjustment
))
1653 adjust_point_for_property (last_point_position
, 0);
1654 already_adjusted
= 1;
1655 if (PT
== last_point_position
+ 1
1657 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1658 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1659 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1660 && (lose
>= 0x20 && lose
< 0x7f)))
1661 : (lose
>= 0x20 && lose
< 0x7f))
1662 /* To extract the case of continuation on
1663 wide-column characters. */
1664 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1665 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1667 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1669 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1671 && !windows_or_buffers_changed
1672 && EQ (current_buffer
->selective_display
, Qnil
)
1673 && !detect_input_pending ()
1674 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1675 && NILP (Vexecuting_kbd_macro
))
1676 direct_output_forward_char (1);
1679 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1681 struct Lisp_Char_Table
*dp
1682 = window_display_table (XWINDOW (selected_window
));
1684 lose
= FETCH_CHAR (PT_BYTE
);
1685 if (! NILP (Vpost_command_hook
))
1687 if (current_buffer
== prev_buffer
1688 && last_point_position
!= PT
1689 && NILP (Vdisable_point_adjustment
)
1690 && NILP (Vglobal_disable_point_adjustment
))
1691 adjust_point_for_property (last_point_position
, 0);
1692 already_adjusted
= 1;
1693 if (PT
== last_point_position
- 1
1695 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1696 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1697 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1698 && (lose
>= 0x20 && lose
< 0x7f)))
1699 : (lose
>= 0x20 && lose
< 0x7f))
1700 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1702 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1704 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1706 && !windows_or_buffers_changed
1707 && EQ (current_buffer
->selective_display
, Qnil
)
1708 && !detect_input_pending ()
1709 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1710 && NILP (Vexecuting_kbd_macro
))
1711 direct_output_forward_char (-1);
1714 else if (EQ (Vthis_command
, Qself_insert_command
)
1715 /* Try this optimization only on char keystrokes. */
1716 && NATNUMP (last_command_char
)
1717 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1720 = translate_char (Vtranslation_table_for_input
,
1721 XFASTINT (last_command_char
), 0, 0, 0);
1723 if (NILP (Vexecuting_kbd_macro
)
1724 && !EQ (minibuf_window
, selected_window
))
1726 if (!nonundocount
|| nonundocount
>= 20)
1734 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1736 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1738 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1740 || MODIFF
<= SAVE_MODIFF
1741 || windows_or_buffers_changed
1742 || !EQ (current_buffer
->selective_display
, Qnil
)
1743 || detect_input_pending ()
1744 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1745 || !NILP (Vexecuting_kbd_macro
));
1747 value
= internal_self_insert (c
, 0);
1752 if (! NILP (Vpost_command_hook
))
1753 /* Put this before calling adjust_point_for_property
1754 so it will only get called once in any case. */
1757 /* VALUE == 1 when AFTER-CHANGE functions are
1758 installed which is the case most of the time
1759 because FONT-LOCK installs one. */
1760 if (!lose
&& !value
)
1761 direct_output_for_insert (c
);
1766 /* Here for a command that isn't executed directly */
1769 #ifdef HAVE_X_WINDOWS
1770 int scount
= SPECPDL_INDEX ();
1772 if (display_hourglass_p
1773 && NILP (Vexecuting_kbd_macro
))
1775 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1781 if (NILP (current_kboard
->Vprefix_arg
))
1783 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1785 #ifdef HAVE_X_WINDOWS
1786 /* Do not check display_hourglass_p here, because
1787 Fcommand_execute could change it, but we should cancel
1788 hourglass cursor anyway.
1789 But don't cancel the hourglass within a macro
1790 just because a command in the macro finishes. */
1791 if (NILP (Vexecuting_kbd_macro
))
1792 unbind_to (scount
, Qnil
);
1797 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1799 /* Note that the value cell will never directly contain nil
1800 if the symbol is a local variable. */
1801 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1802 safe_run_hooks (Qpost_command_hook
);
1804 /* If displaying a message, resize the echo area window to fit
1805 that message's size exactly. */
1806 if (!NILP (echo_area_buffer
[0]))
1807 resize_echo_area_exactly ();
1809 if (!NILP (Vdeferred_action_list
))
1810 safe_run_hooks (Qdeferred_action_function
);
1812 /* If there is a prefix argument,
1813 1) We don't want Vlast_command to be ``universal-argument''
1814 (that would be dumb), so don't set Vlast_command,
1815 2) we want to leave echoing on so that the prefix will be
1816 echoed as part of this key sequence, so don't call
1818 3) we want to leave this_command_key_count non-zero, so that
1819 read_char will realize that it is re-reading a character, and
1820 not echo it a second time.
1822 If the command didn't actually create a prefix arg,
1823 but is merely a frame event that is transparent to prefix args,
1824 then the above doesn't apply. */
1825 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1827 current_kboard
->Vlast_command
= Vthis_command
;
1828 current_kboard
->Vreal_last_command
= real_this_command
;
1830 this_command_key_count
= 0;
1831 this_command_key_count_reset
= 0;
1832 this_single_command_key_start
= 0;
1835 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1837 /* Setting transient-mark-mode to `only' is a way of
1838 turning it on for just one command. */
1840 if (EQ (Vtransient_mark_mode
, Qidentity
))
1841 Vtransient_mark_mode
= Qnil
;
1842 if (EQ (Vtransient_mark_mode
, Qonly
))
1843 Vtransient_mark_mode
= Qidentity
;
1845 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1847 /* We could also call `deactivate'mark'. */
1848 if (EQ (Vtransient_mark_mode
, Qlambda
))
1849 Vtransient_mark_mode
= Qnil
;
1852 current_buffer
->mark_active
= Qnil
;
1853 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1856 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1857 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1862 if (current_buffer
== prev_buffer
1863 && last_point_position
!= PT
1864 && NILP (Vdisable_point_adjustment
)
1865 && NILP (Vglobal_disable_point_adjustment
)
1866 && !already_adjusted
)
1867 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1869 /* Install chars successfully executed in kbd macro. */
1871 if (!NILP (current_kboard
->defining_kbd_macro
)
1872 && NILP (current_kboard
->Vprefix_arg
))
1873 finalize_kbd_macro_chars ();
1877 any_kboard_state ();
1882 extern Lisp_Object Qcomposition
, Qdisplay
;
1884 /* Adjust point to a boundary of a region that has such a property
1885 that should be treated intangible. For the moment, we check
1886 `composition', `display' and `invisible' properties.
1887 LAST_PT is the last position of point. */
1889 extern Lisp_Object Qafter_string
, Qbefore_string
;
1890 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1893 adjust_point_for_property (last_pt
, modified
)
1898 Lisp_Object val
, overlay
, tmp
;
1899 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1902 /* FIXME: cycling is probably not necessary because these properties
1903 can't be usefully combined anyway. */
1904 while (check_composition
|| check_display
|| check_invisible
)
1906 if (check_composition
1907 && PT
> BEGV
&& PT
< ZV
1908 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1909 && COMPOSITION_VALID_P (beg
, end
, val
)
1910 && beg
< PT
/* && end > PT <- It's always the case. */
1911 && (last_pt
<= beg
|| last_pt
>= end
))
1914 SET_PT (PT
< last_pt
? beg
: end
);
1915 check_display
= check_invisible
= 1;
1917 check_composition
= 0;
1919 && PT
> BEGV
&& PT
< ZV
1920 && !NILP (val
= get_char_property_and_overlay
1921 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1922 && display_prop_intangible_p (val
)
1923 && (!OVERLAYP (overlay
)
1924 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1925 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1926 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1927 && (beg
< PT
/* && end > PT <- It's always the case. */
1928 || (beg
<= PT
&& STRINGP (val
) && SCHARS (val
) == 0)))
1931 SET_PT (PT
< last_pt
1932 ? (STRINGP (val
) && SCHARS (val
) == 0 ? beg
- 1 : beg
)
1934 check_composition
= check_invisible
= 1;
1937 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1939 int inv
, ellipsis
= 0;
1942 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1944 && !NILP (val
= get_char_property_and_overlay
1945 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1946 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1948 ellipsis
= ellipsis
|| inv
> 1
1949 || (OVERLAYP (overlay
)
1950 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1951 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1952 tmp
= Fnext_single_char_property_change
1953 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1954 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1957 && !NILP (val
= get_char_property_and_overlay
1958 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1959 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1961 ellipsis
= ellipsis
|| inv
> 1
1962 || (OVERLAYP (overlay
)
1963 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1964 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1965 tmp
= Fprevious_single_char_property_change
1966 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1967 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1970 /* Move away from the inside area. */
1971 if (beg
< PT
&& end
> PT
)
1973 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1974 /* We haven't moved yet (so we don't need to fear
1975 infinite-looping) and we were outside the range
1976 before (so either end of the range still corresponds
1977 to a move in the right direction): pretend we moved
1978 less than we actually did, so that we still have
1979 more freedom below in choosing which end of the range
1981 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1982 /* We either have moved already or the last point
1983 was already in the range: we don't get to choose
1984 which end of the range we have to go to. */
1985 : (PT
< last_pt
? beg
: end
));
1986 check_composition
= check_display
= 1;
1988 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1989 the point to something other than its argument, due to
1990 point-motion hooks, intangibility, etc. */
1991 xassert (PT
== beg
|| PT
== end
);
1994 /* Pretend the area doesn't exist if the buffer is not
1996 if (!modified
&& !ellipsis
&& beg
< end
)
1998 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1999 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
2000 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
2001 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
2002 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
2003 /* We've already moved as far as we can. Trying to go
2004 to the other end would mean moving backwards and thus
2005 could lead to an infinite loop. */
2007 else if (val
= get_pos_property (make_number (PT
),
2009 TEXT_PROP_MEANS_INVISIBLE (val
)
2010 && (val
= get_pos_property
2011 (make_number (PT
== beg
? end
: beg
),
2013 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2014 (check_composition
= check_display
= 1,
2015 SET_PT (PT
== beg
? end
: beg
));
2018 check_invisible
= 0;
2022 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2025 safe_run_hooks_1 (hook
)
2028 return call1 (Vrun_hooks
, Vinhibit_quit
);
2031 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2034 safe_run_hooks_error (data
)
2037 Lisp_Object args
[3];
2038 args
[0] = build_string ("Error in %s: %s");
2039 args
[1] = Vinhibit_quit
;
2042 return Fset (Vinhibit_quit
, Qnil
);
2045 /* If we get an error while running the hook, cause the hook variable
2046 to be nil. Also inhibit quits, so that C-g won't cause the hook
2047 to mysteriously evaporate. */
2050 safe_run_hooks (hook
)
2053 int count
= SPECPDL_INDEX ();
2054 specbind (Qinhibit_quit
, hook
);
2056 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2058 unbind_to (count
, Qnil
);
2062 /* Number of seconds between polling for input. This is a Lisp
2063 variable that can be bound. */
2065 EMACS_INT polling_period
;
2067 /* Nonzero means polling for input is temporarily suppressed. */
2069 int poll_suppress_count
;
2071 /* Asynchronous timer for polling. */
2073 struct atimer
*poll_timer
;
2076 #ifdef POLL_FOR_INPUT
2078 /* Poll for input, so what we catch a C-g if it comes in. This
2079 function is called from x_make_frame_visible, see comment
2085 if (interrupt_input_blocked
== 0
2086 && !waiting_for_input
)
2087 read_avail_input (0);
2090 /* Timer callback function for poll_timer. TIMER is equal to
2094 poll_for_input (timer
)
2095 struct atimer
*timer
;
2097 if (poll_suppress_count
== 0)
2099 interrupt_input_pending
= 1;
2101 poll_for_input_1 ();
2105 #endif /* POLL_FOR_INPUT */
2107 /* Begin signals to poll for input, if they are appropriate.
2108 This function is called unconditionally from various places. */
2113 #ifdef POLL_FOR_INPUT
2114 if (read_socket_hook
&& !interrupt_input
)
2116 /* Turn alarm handling on unconditionally. It might have
2117 been turned off in process.c. */
2118 turn_on_atimers (1);
2120 /* If poll timer doesn't exist, are we need one with
2121 a different interval, start a new one. */
2122 if (poll_timer
== NULL
2123 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2125 EMACS_TIME interval
;
2128 cancel_atimer (poll_timer
);
2130 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2131 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2132 poll_for_input
, NULL
);
2135 /* Let the timer's callback function poll for input
2136 if this becomes zero. */
2137 --poll_suppress_count
;
2142 /* Nonzero if we are using polling to handle input asynchronously. */
2145 input_polling_used ()
2147 #ifdef POLL_FOR_INPUT
2148 return read_socket_hook
&& !interrupt_input
;
2154 /* Turn off polling. */
2159 #ifdef POLL_FOR_INPUT
2160 if (read_socket_hook
&& !interrupt_input
)
2161 ++poll_suppress_count
;
2165 /* Set the value of poll_suppress_count to COUNT
2166 and start or stop polling accordingly. */
2169 set_poll_suppress_count (count
)
2172 #ifdef POLL_FOR_INPUT
2173 if (count
== 0 && poll_suppress_count
!= 0)
2175 poll_suppress_count
= 1;
2178 else if (count
!= 0 && poll_suppress_count
== 0)
2182 poll_suppress_count
= count
;
2186 /* Bind polling_period to a value at least N.
2187 But don't decrease it. */
2190 bind_polling_period (n
)
2193 #ifdef POLL_FOR_INPUT
2194 int new = polling_period
;
2199 stop_other_atimers (poll_timer
);
2201 specbind (Qpolling_period
, make_number (new));
2202 /* Start a new alarm with the new period. */
2207 /* Apply the control modifier to CHARACTER. */
2213 /* Save the upper bits here. */
2214 int upper
= c
& ~0177;
2218 /* Everything in the columns containing the upper-case letters
2219 denotes a control character. */
2220 if (c
>= 0100 && c
< 0140)
2224 /* Set the shift modifier for a control char
2225 made from a shifted letter. But only for letters! */
2226 if (oc
>= 'A' && oc
<= 'Z')
2227 c
|= shift_modifier
;
2230 /* The lower-case letters denote control characters too. */
2231 else if (c
>= 'a' && c
<= 'z')
2234 /* Include the bits for control and shift
2235 only if the basic ASCII code can't indicate them. */
2239 /* Replace the high bits. */
2240 c
|= (upper
& ~ctrl_modifier
);
2245 /* Display the help-echo property of the character after the mouse pointer.
2246 Either show it in the echo area, or call show-help-function to display
2247 it by other means (maybe in a tooltip).
2249 If HELP is nil, that means clear the previous help echo.
2251 If HELP is a string, display that string. If HELP is a function,
2252 call it with OBJECT and POS as arguments; the function should
2253 return a help string or nil for none. For all other types of HELP,
2254 evaluate it to obtain a string.
2256 WINDOW is the window in which the help was generated, if any.
2257 It is nil if not in a window.
2259 If OBJECT is a buffer, POS is the position in the buffer where the
2260 `help-echo' text property was found.
2262 If OBJECT is an overlay, that overlay has a `help-echo' property,
2263 and POS is the position in the overlay's buffer under the mouse.
2265 If OBJECT is a string (an overlay string or a string displayed with
2266 the `display' property). POS is the position in that string under
2269 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2270 echo overwrites a keystroke echo currently displayed in the echo
2273 Note: this function may only be called with HELP nil or a string
2274 from X code running asynchronously. */
2277 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2278 Lisp_Object help
, window
, object
, pos
;
2279 int ok_to_overwrite_keystroke_echo
;
2281 if (!NILP (help
) && !STRINGP (help
))
2283 if (FUNCTIONP (help
))
2285 Lisp_Object args
[4];
2290 help
= safe_call (4, args
);
2293 help
= safe_eval (help
);
2295 if (!STRINGP (help
))
2300 if (!noninteractive
&& STRINGP (help
))
2301 help
= call1 (Qmouse_fixup_help_message
, help
);
2304 if (STRINGP (help
) || NILP (help
))
2306 if (!NILP (Vshow_help_function
))
2307 call1 (Vshow_help_function
, help
);
2308 else if (/* Don't overwrite minibuffer contents. */
2309 !MINI_WINDOW_P (XWINDOW (selected_window
))
2310 /* Don't overwrite a keystroke echo. */
2311 && (NILP (echo_message_buffer
)
2312 || ok_to_overwrite_keystroke_echo
)
2313 /* Don't overwrite a prompt. */
2314 && !cursor_in_echo_area
)
2318 int count
= SPECPDL_INDEX ();
2320 if (!help_echo_showing_p
)
2321 Vpre_help_message
= current_message ();
2323 specbind (Qmessage_truncate_lines
, Qt
);
2324 message3_nolog (help
, SBYTES (help
),
2325 STRING_MULTIBYTE (help
));
2326 unbind_to (count
, Qnil
);
2328 else if (STRINGP (Vpre_help_message
))
2330 message3_nolog (Vpre_help_message
,
2331 SBYTES (Vpre_help_message
),
2332 STRING_MULTIBYTE (Vpre_help_message
));
2333 Vpre_help_message
= Qnil
;
2339 help_echo_showing_p
= STRINGP (help
);
2345 /* Input of single characters from keyboard */
2347 Lisp_Object
print_help ();
2348 static Lisp_Object
kbd_buffer_get_event ();
2349 static void record_char ();
2352 static jmp_buf wrong_kboard_jmpbuf
;
2355 #define STOP_POLLING \
2356 do { if (! polling_stopped_here) stop_polling (); \
2357 polling_stopped_here = 1; } while (0)
2359 #define RESUME_POLLING \
2360 do { if (polling_stopped_here) start_polling (); \
2361 polling_stopped_here = 0; } while (0)
2363 /* read a character from the keyboard; call the redisplay if needed */
2364 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2365 -1 means do not do redisplay, but do do autosaving.
2368 /* The arguments MAPS and NMAPS are for menu prompting.
2369 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2371 PREV_EVENT is the previous input event, or nil if we are reading
2372 the first event of a key sequence (or not reading a key sequence).
2373 If PREV_EVENT is t, that is a "magic" value that says
2374 not to run input methods, but in other respects to act as if
2375 not reading a key sequence.
2377 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2378 if we used a mouse menu to read the input, or zero otherwise. If
2379 USED_MOUSE_MENU is null, we don't dereference it.
2381 Value is t if we showed a menu and the user rejected it. */
2384 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2388 Lisp_Object prev_event
;
2389 int *used_mouse_menu
;
2391 volatile Lisp_Object c
;
2393 jmp_buf local_getcjmp
;
2395 volatile int key_already_recorded
= 0;
2396 Lisp_Object tem
, save
;
2397 volatile Lisp_Object previous_echo_area_message
;
2398 volatile Lisp_Object also_record
;
2399 volatile int reread
;
2400 struct gcpro gcpro1
, gcpro2
;
2401 int polling_stopped_here
= 0;
2405 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2406 before_command_key_count
= this_command_key_count
;
2407 before_command_echo_length
= echo_length ();
2410 previous_echo_area_message
= Qnil
;
2412 GCPRO2 (c
, previous_echo_area_message
);
2417 if (CONSP (Vunread_post_input_method_events
))
2419 c
= XCAR (Vunread_post_input_method_events
);
2420 Vunread_post_input_method_events
2421 = XCDR (Vunread_post_input_method_events
);
2423 /* Undo what read_char_x_menu_prompt did when it unread
2424 additional keys returned by Fx_popup_menu. */
2426 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2434 if (unread_command_char
!= -1)
2436 XSETINT (c
, unread_command_char
);
2437 unread_command_char
= -1;
2443 if (CONSP (Vunread_command_events
))
2445 c
= XCAR (Vunread_command_events
);
2446 Vunread_command_events
= XCDR (Vunread_command_events
);
2448 /* Undo what read_char_x_menu_prompt did when it unread
2449 additional keys returned by Fx_popup_menu. */
2451 && EQ (XCDR (c
), Qdisabled
)
2452 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2455 /* If the queued event is something that used the mouse,
2456 set used_mouse_menu accordingly. */
2458 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2459 *used_mouse_menu
= 1;
2462 goto reread_for_input_method
;
2465 if (CONSP (Vunread_input_method_events
))
2467 c
= XCAR (Vunread_input_method_events
);
2468 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2470 /* Undo what read_char_x_menu_prompt did when it unread
2471 additional keys returned by Fx_popup_menu. */
2473 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2477 goto reread_for_input_method
;
2480 this_command_key_count_reset
= 0;
2482 if (!NILP (Vexecuting_kbd_macro
))
2484 /* We set this to Qmacro; since that's not a frame, nobody will
2485 try to switch frames on us, and the selected window will
2488 Since this event came from a macro, it would be misleading to
2489 leave internal_last_event_frame set to wherever the last
2490 real event came from. Normally, a switch-frame event selects
2491 internal_last_event_frame after each command is read, but
2492 events read from a macro should never cause a new frame to be
2494 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2496 /* Exit the macro if we are at the end.
2497 Also, some things replace the macro with t
2498 to force an early exit. */
2499 if (EQ (Vexecuting_kbd_macro
, Qt
)
2500 || executing_kbd_macro_index
>= XFASTINT (Flength (Vexecuting_kbd_macro
)))
2506 c
= Faref (Vexecuting_kbd_macro
, make_number (executing_kbd_macro_index
));
2507 if (STRINGP (Vexecuting_kbd_macro
)
2508 && (XINT (c
) & 0x80) && (XUINT (c
) <= 0xff))
2509 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2511 executing_kbd_macro_index
++;
2516 if (!NILP (unread_switch_frame
))
2518 c
= unread_switch_frame
;
2519 unread_switch_frame
= Qnil
;
2521 /* This event should make it into this_command_keys, and get echoed
2522 again, so we do not set `reread'. */
2526 /* if redisplay was requested */
2527 if (commandflag
>= 0)
2529 /* If there is pending input, process any events which are not
2530 user-visible, such as X selection_request events. */
2532 || detect_input_pending_run_timers (0))
2533 swallow_events (0); /* may clear input_pending */
2535 /* Redisplay if no pending input. */
2536 while (!input_pending
)
2538 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2539 redisplay_preserve_echo_area (5);
2544 /* Normal case: no input arrived during redisplay. */
2547 /* Input arrived and pre-empted redisplay.
2548 Process any events which are not user-visible. */
2550 /* If that cleared input_pending, try again to redisplay. */
2554 /* Message turns off echoing unless more keystrokes turn it on again.
2556 The code in 20.x for the condition was
2558 1. echo_area_glyphs && *echo_area_glyphs
2559 2. && echo_area_glyphs != current_kboard->echobuf
2560 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2562 (1) means there's a current message displayed
2564 (2) means it's not the message from echoing from the current
2567 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2568 is set to a non-null value. This is done in read_char and it is
2569 set to echo_area_glyphs after a call to echo_char. That means
2570 ok_to_echo_at_next_pause is either null or
2571 current_kboard->echobuf with the appropriate current_kboard at
2574 So, condition (3) means in clear text ok_to_echo_at_next_pause
2575 must be either null, or the current message isn't from echoing at
2576 all, or it's from echoing from a different kboard than the
2579 if (/* There currently is something in the echo area. */
2580 !NILP (echo_area_buffer
[0])
2581 && (/* And it's either not from echoing. */
2582 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2583 /* Or it's an echo from a different kboard. */
2584 || echo_kboard
!= current_kboard
2585 /* Or we explicitly allow overwriting whatever there is. */
2586 || ok_to_echo_at_next_pause
== NULL
))
2591 /* Try reading a character via menu prompting in the minibuf.
2592 Try this before the sit-for, because the sit-for
2593 would do the wrong thing if we are supposed to do
2594 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2595 after a mouse event so don't try a minibuf menu. */
2597 if (nmaps
> 0 && INTERACTIVE
2598 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2599 /* Don't bring up a menu if we already have another event. */
2600 && NILP (Vunread_command_events
)
2601 && unread_command_char
< 0
2602 && !detect_input_pending_run_timers (0))
2604 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2607 key_already_recorded
= 1;
2612 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2613 We will do that below, temporarily for short sections of code,
2614 when appropriate. local_getcjmp must be in effect
2615 around any call to sit_for or kbd_buffer_get_event;
2616 it *must not* be in effect when we call redisplay. */
2618 if (_setjmp (local_getcjmp
))
2620 /* We must have saved the outer value of getcjmp here,
2621 so restore it now. */
2622 restore_getcjmp (save_jump
);
2623 XSETINT (c
, quit_char
);
2624 internal_last_event_frame
= selected_frame
;
2625 Vlast_event_frame
= internal_last_event_frame
;
2626 /* If we report the quit char as an event,
2627 don't do so more than once. */
2628 if (!NILP (Vinhibit_quit
))
2633 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2634 if (kb
!= current_kboard
)
2636 Lisp_Object link
= kb
->kbd_queue
;
2637 /* We shouldn't get here if we were in single-kboard mode! */
2642 while (CONSP (XCDR (link
)))
2644 if (!NILP (XCDR (link
)))
2648 kb
->kbd_queue
= Fcons (c
, Qnil
);
2650 XSETCDR (link
, Fcons (c
, Qnil
));
2651 kb
->kbd_queue_has_data
= 1;
2652 current_kboard
= kb
;
2653 /* This is going to exit from read_char
2654 so we had better get rid of this frame's stuff. */
2656 longjmp (wrong_kboard_jmpbuf
, 1);
2663 timer_start_idle ();
2665 /* If in middle of key sequence and minibuffer not active,
2666 start echoing if enough time elapses. */
2668 if (minibuf_level
== 0
2669 && !current_kboard
->immediate_echo
2670 && this_command_key_count
> 0
2672 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2673 && NILP (Fzerop (Vecho_keystrokes
))
2674 && (/* No message. */
2675 NILP (echo_area_buffer
[0])
2676 /* Or empty message. */
2677 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2678 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2679 /* Or already echoing from same kboard. */
2680 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2681 /* Or not echoing before and echoing allowed. */
2682 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2686 /* After a mouse event, start echoing right away.
2687 This is because we are probably about to display a menu,
2688 and we don't want to delay before doing so. */
2689 if (EVENT_HAS_PARAMETERS (prev_event
))
2694 double duration
= extract_float (Vecho_keystrokes
);
2695 sec
= (int) duration
;
2696 usec
= (duration
- sec
) * 1000000;
2697 save_getcjmp (save_jump
);
2698 restore_getcjmp (local_getcjmp
);
2699 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2700 restore_getcjmp (save_jump
);
2702 && ! CONSP (Vunread_command_events
))
2707 /* Maybe auto save due to number of keystrokes. */
2709 if (commandflag
!= 0
2710 && auto_save_interval
> 0
2711 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2712 && !detect_input_pending_run_timers (0))
2714 Fdo_auto_save (Qnil
, Qnil
);
2715 /* Hooks can actually change some buffers in auto save. */
2719 /* Try reading using an X menu.
2720 This is never confused with reading using the minibuf
2721 because the recursive call of read_char in read_char_minibuf_menu_prompt
2722 does not pass on any keymaps. */
2724 if (nmaps
> 0 && INTERACTIVE
2725 && !NILP (prev_event
)
2726 && EVENT_HAS_PARAMETERS (prev_event
)
2727 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2728 && !EQ (XCAR (prev_event
), Qtool_bar
)
2729 /* Don't bring up a menu if we already have another event. */
2730 && NILP (Vunread_command_events
)
2731 && unread_command_char
< 0)
2733 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2735 /* Now that we have read an event, Emacs is not idle. */
2741 /* Maybe autosave and/or garbage collect due to idleness. */
2743 if (INTERACTIVE
&& NILP (c
))
2745 int delay_level
, buffer_size
;
2747 /* Slow down auto saves logarithmically in size of current buffer,
2748 and garbage collect while we're at it. */
2749 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2750 last_non_minibuf_size
= Z
- BEG
;
2751 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2753 while (buffer_size
> 64)
2754 delay_level
++, buffer_size
-= buffer_size
>> 2;
2755 if (delay_level
< 4) delay_level
= 4;
2756 /* delay_level is 4 for files under around 50k, 7 at 100k,
2757 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2759 /* Auto save if enough time goes by without input. */
2760 if (commandflag
!= 0
2761 && num_nonmacro_input_events
> last_auto_save
2762 && INTEGERP (Vauto_save_timeout
)
2763 && XINT (Vauto_save_timeout
) > 0)
2767 save_getcjmp (save_jump
);
2768 restore_getcjmp (local_getcjmp
);
2769 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2771 restore_getcjmp (save_jump
);
2774 && ! CONSP (Vunread_command_events
))
2776 Fdo_auto_save (Qnil
, Qnil
);
2778 /* If we have auto-saved and there is still no input
2779 available, garbage collect if there has been enough
2780 consing going on to make it worthwhile. */
2781 if (!detect_input_pending_run_timers (0)
2782 && consing_since_gc
> gc_cons_threshold
/ 2)
2783 Fgarbage_collect ();
2790 /* If this has become non-nil here, it has been set by a timer
2791 or sentinel or filter. */
2792 if (CONSP (Vunread_command_events
))
2794 c
= XCAR (Vunread_command_events
);
2795 Vunread_command_events
= XCDR (Vunread_command_events
);
2798 /* Read something from current KBOARD's side queue, if possible. */
2802 if (current_kboard
->kbd_queue_has_data
)
2804 if (!CONSP (current_kboard
->kbd_queue
))
2806 c
= XCAR (current_kboard
->kbd_queue
);
2807 current_kboard
->kbd_queue
2808 = XCDR (current_kboard
->kbd_queue
);
2809 if (NILP (current_kboard
->kbd_queue
))
2810 current_kboard
->kbd_queue_has_data
= 0;
2811 input_pending
= readable_events (0);
2812 if (EVENT_HAS_PARAMETERS (c
)
2813 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2814 internal_last_event_frame
= XCAR (XCDR (c
));
2815 Vlast_event_frame
= internal_last_event_frame
;
2820 /* If current_kboard's side queue is empty check the other kboards.
2821 If one of them has data that we have not yet seen here,
2822 switch to it and process the data waiting for it.
2824 Note: if the events queued up for another kboard
2825 have already been seen here, and therefore are not a complete command,
2826 the kbd_queue_has_data field is 0, so we skip that kboard here.
2827 That's to avoid an infinite loop switching between kboards here. */
2828 if (NILP (c
) && !single_kboard
)
2831 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2832 if (kb
->kbd_queue_has_data
)
2834 current_kboard
= kb
;
2835 /* This is going to exit from read_char
2836 so we had better get rid of this frame's stuff. */
2838 longjmp (wrong_kboard_jmpbuf
, 1);
2847 /* Finally, we read from the main queue,
2848 and if that gives us something we can't use yet, we put it on the
2849 appropriate side queue and try again. */
2855 /* Actually read a character, waiting if necessary. */
2856 save_getcjmp (save_jump
);
2857 restore_getcjmp (local_getcjmp
);
2858 timer_start_idle ();
2859 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2860 restore_getcjmp (save_jump
);
2863 if (! NILP (c
) && (kb
!= current_kboard
))
2865 Lisp_Object link
= kb
->kbd_queue
;
2868 while (CONSP (XCDR (link
)))
2870 if (!NILP (XCDR (link
)))
2874 kb
->kbd_queue
= Fcons (c
, Qnil
);
2876 XSETCDR (link
, Fcons (c
, Qnil
));
2877 kb
->kbd_queue_has_data
= 1;
2881 current_kboard
= kb
;
2882 /* This is going to exit from read_char
2883 so we had better get rid of this frame's stuff. */
2885 longjmp (wrong_kboard_jmpbuf
, 1);
2890 /* Terminate Emacs in batch mode if at eof. */
2891 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2892 Fkill_emacs (make_number (1));
2896 /* Add in any extra modifiers, where appropriate. */
2897 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2898 || ((extra_keyboard_modifiers
& 0177) < ' '
2899 && (extra_keyboard_modifiers
& 0177) != 0))
2900 XSETINT (c
, make_ctrl_char (XINT (c
)));
2902 /* Transfer any other modifier bits directly from
2903 extra_keyboard_modifiers to c. Ignore the actual character code
2904 in the low 16 bits of extra_keyboard_modifiers. */
2905 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2915 if (commandflag
>= 0
2916 && !input_pending
&& !detect_input_pending_run_timers (0))
2924 /* Buffer switch events are only for internal wakeups
2925 so don't show them to the user.
2926 Also, don't record a key if we already did. */
2927 if (BUFFERP (c
) || key_already_recorded
)
2930 /* Process special events within read_char
2931 and loop around to read another event. */
2934 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2939 int was_locked
= single_kboard
;
2941 last_input_char
= c
;
2942 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2944 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2945 /* We stopped being idle for this event; undo that. This
2946 prevents automatic window selection (under
2947 mouse_autoselect_window from acting as a real input event, for
2948 example banishing the mouse under mouse-avoidance-mode. */
2949 timer_resume_idle ();
2951 /* Resume allowing input from any kboard, if that was true before. */
2953 any_kboard_state ();
2958 /* Handle things that only apply to characters. */
2961 /* If kbd_buffer_get_event gave us an EOF, return that. */
2965 if ((STRINGP (Vkeyboard_translate_table
)
2966 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2967 || (VECTORP (Vkeyboard_translate_table
)
2968 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2969 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2970 && CHAR_VALID_P (XINT (c
), 0)))
2973 d
= Faref (Vkeyboard_translate_table
, c
);
2974 /* nil in keyboard-translate-table means no translation. */
2980 /* If this event is a mouse click in the menu bar,
2981 return just menu-bar for now. Modify the mouse click event
2982 so we won't do this twice, then queue it up. */
2983 if (EVENT_HAS_PARAMETERS (c
)
2985 && CONSP (EVENT_START (c
))
2986 && CONSP (XCDR (EVENT_START (c
))))
2990 posn
= POSN_POSN (EVENT_START (c
));
2991 /* Handle menu-bar events:
2992 insert the dummy prefix event `menu-bar'. */
2993 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2995 /* Change menu-bar to (menu-bar) as the event "position". */
2996 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2999 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
3004 /* Store these characters into recent_keys, the dribble file if any,
3005 and the keyboard macro being defined, if any. */
3007 if (! NILP (also_record
))
3008 record_char (also_record
);
3010 /* Wipe the echo area.
3011 But first, if we are about to use an input method,
3012 save the echo area contents for it to refer to. */
3014 && ! NILP (Vinput_method_function
)
3015 && (unsigned) XINT (c
) >= ' '
3016 && (unsigned) XINT (c
) != 127
3017 && (unsigned) XINT (c
) < 256)
3019 previous_echo_area_message
= Fcurrent_message ();
3020 Vinput_method_previous_message
= previous_echo_area_message
;
3023 /* Now wipe the echo area, except for help events which do their
3024 own stuff with the echo area. */
3026 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3027 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3029 if (!NILP (echo_area_buffer
[0]))
3030 safe_run_hooks (Qecho_area_clear_hook
);
3031 clear_message (1, 0);
3034 reread_for_input_method
:
3036 /* Pass this to the input method, if appropriate. */
3038 && ! NILP (Vinput_method_function
)
3039 /* Don't run the input method within a key sequence,
3040 after the first event of the key sequence. */
3041 && NILP (prev_event
)
3042 && (unsigned) XINT (c
) >= ' '
3043 && (unsigned) XINT (c
) != 127
3044 && (unsigned) XINT (c
) < 256)
3047 int key_count
, key_count_reset
;
3048 struct gcpro gcpro1
;
3049 int count
= SPECPDL_INDEX ();
3051 /* Save the echo status. */
3052 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3053 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3054 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3055 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3058 if (before_command_restore_flag
)
3060 this_command_key_count
= before_command_key_count_1
;
3061 if (this_command_key_count
< this_single_command_key_start
)
3062 this_single_command_key_start
= this_command_key_count
;
3063 echo_truncate (before_command_echo_length_1
);
3064 before_command_restore_flag
= 0;
3068 /* Save the this_command_keys status. */
3069 key_count
= this_command_key_count
;
3070 key_count_reset
= this_command_key_count_reset
;
3073 keys
= Fcopy_sequence (this_command_keys
);
3078 /* Clear out this_command_keys. */
3079 this_command_key_count
= 0;
3080 this_command_key_count_reset
= 0;
3082 /* Now wipe the echo area. */
3083 if (!NILP (echo_area_buffer
[0]))
3084 safe_run_hooks (Qecho_area_clear_hook
);
3085 clear_message (1, 0);
3088 /* If we are not reading a key sequence,
3089 never use the echo area. */
3092 specbind (Qinput_method_use_echo_area
, Qt
);
3095 /* Call the input method. */
3096 tem
= call1 (Vinput_method_function
, c
);
3098 tem
= unbind_to (count
, tem
);
3100 /* Restore the saved echoing state
3101 and this_command_keys state. */
3102 this_command_key_count
= key_count
;
3103 this_command_key_count_reset
= key_count_reset
;
3105 this_command_keys
= keys
;
3108 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3109 current_kboard
->echo_string
= saved_echo_string
;
3110 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3111 if (saved_immediate_echo
)
3116 /* The input method can return no events. */
3119 /* Bring back the previous message, if any. */
3120 if (! NILP (previous_echo_area_message
))
3121 message_with_string ("%s", previous_echo_area_message
, 0);
3124 /* It returned one event or more. */
3126 Vunread_post_input_method_events
3127 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3132 /* Display help if not echoing. */
3133 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3135 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3136 Lisp_Object help
, object
, position
, window
, tem
;
3138 tem
= Fcdr (XCDR (c
));
3141 window
= Fcar (tem
);
3143 object
= Fcar (tem
);
3145 position
= Fcar (tem
);
3147 show_help_echo (help
, window
, object
, position
, 0);
3149 /* We stopped being idle for this event; undo that. */
3150 timer_resume_idle ();
3154 if (! reread
|| this_command_key_count
== 0
3155 || this_command_key_count_reset
)
3158 /* Don't echo mouse motion events. */
3159 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3160 && NILP (Fzerop (Vecho_keystrokes
))
3161 && ! (EVENT_HAS_PARAMETERS (c
)
3162 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3165 if (! NILP (also_record
))
3166 echo_char (also_record
);
3167 /* Once we reread a character, echoing can happen
3168 the next time we pause to read a new one. */
3169 ok_to_echo_at_next_pause
= current_kboard
;
3172 /* Record this character as part of the current key. */
3173 add_command_key (c
);
3174 if (! NILP (also_record
))
3175 add_command_key (also_record
);
3178 last_input_char
= c
;
3181 /* Process the help character specially if enabled */
3182 if (!NILP (Vhelp_form
) && help_char_p (c
))
3185 count
= SPECPDL_INDEX ();
3187 record_unwind_protect (Fset_window_configuration
,
3188 Fcurrent_window_configuration (Qnil
));
3190 tem0
= Feval (Vhelp_form
);
3192 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3196 c
= read_char (0, 0, 0, Qnil
, 0);
3197 while (BUFFERP (c
));
3198 /* Remove the help from the frame */
3199 unbind_to (count
, Qnil
);
3202 if (EQ (c
, make_number (040)))
3206 c
= read_char (0, 0, 0, Qnil
, 0);
3207 while (BUFFERP (c
));
3216 /* Record a key that came from a mouse menu.
3217 Record it for echoing, for this-command-keys, and so on. */
3223 /* Wipe the echo area. */
3224 clear_message (1, 0);
3229 before_command_key_count
= this_command_key_count
;
3230 before_command_echo_length
= echo_length ();
3233 /* Don't echo mouse motion events. */
3234 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3235 && NILP (Fzerop (Vecho_keystrokes
)))
3239 /* Once we reread a character, echoing can happen
3240 the next time we pause to read a new one. */
3241 ok_to_echo_at_next_pause
= 0;
3244 /* Record this character as part of the current key. */
3245 add_command_key (c
);
3247 /* Re-reading in the middle of a command */
3248 last_input_char
= c
;
3252 /* Return 1 if should recognize C as "the help character". */
3260 if (EQ (c
, Vhelp_char
))
3262 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3263 if (EQ (c
, XCAR (tail
)))
3268 /* Record the input event C in various ways. */
3276 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3278 /* To avoid filling recent_keys with help-echo and mouse-movement
3279 events, we filter out repeated help-echo events, only store the
3280 first and last in a series of mouse-movement events, and don't
3281 store repeated help-echo events which are only separated by
3282 mouse-movement events. */
3284 Lisp_Object ev1
, ev2
, ev3
;
3287 if ((ix1
= recent_keys_index
- 1) < 0)
3288 ix1
= NUM_RECENT_KEYS
- 1;
3289 ev1
= AREF (recent_keys
, ix1
);
3291 if ((ix2
= ix1
- 1) < 0)
3292 ix2
= NUM_RECENT_KEYS
- 1;
3293 ev2
= AREF (recent_keys
, ix2
);
3295 if ((ix3
= ix2
- 1) < 0)
3296 ix3
= NUM_RECENT_KEYS
- 1;
3297 ev3
= AREF (recent_keys
, ix3
);
3299 if (EQ (XCAR (c
), Qhelp_echo
))
3301 /* Don't record `help-echo' in recent_keys unless it shows some help
3302 message, and a different help than the previously recorded
3304 Lisp_Object help
, last_help
;
3306 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3307 if (!STRINGP (help
))
3309 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3310 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3312 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3313 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3314 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3316 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3317 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3318 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3319 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3322 else if (EQ (XCAR (c
), Qmouse_movement
))
3324 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3325 So additional mouse movement events replace the last element. */
3326 Lisp_Object last_window
, window
;
3328 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3329 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3330 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3331 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3332 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3334 ASET (recent_keys
, ix1
, c
);
3340 store_kbd_macro_char (c
);
3345 ASET (recent_keys
, recent_keys_index
, c
);
3346 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3347 recent_keys_index
= 0;
3349 else if (recorded
< 0)
3351 /* We need to remove one or two events from recent_keys.
3352 To do this, we simply put nil at those events and move the
3353 recent_keys_index backwards over those events. Usually,
3354 users will never see those nil events, as they will be
3355 overwritten by the command keys entered to see recent_keys
3358 while (recorded
++ < 0 && total_keys
> 0)
3360 if (total_keys
< NUM_RECENT_KEYS
)
3362 if (--recent_keys_index
< 0)
3363 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3364 ASET (recent_keys
, recent_keys_index
, Qnil
);
3368 num_nonmacro_input_events
++;
3370 /* Write c to the dribble file. If c is a lispy event, write
3371 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3372 If you, dear reader, have a better idea, you've got the source. :-) */
3377 if (XUINT (c
) < 0x100)
3378 putc (XINT (c
), dribble
);
3380 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3384 Lisp_Object dribblee
;
3386 /* If it's a structured event, take the event header. */
3387 dribblee
= EVENT_HEAD (c
);
3389 if (SYMBOLP (dribblee
))
3391 putc ('<', dribble
);
3392 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3393 SBYTES (SYMBOL_NAME (dribblee
)),
3395 putc ('>', dribble
);
3407 struct buffer
*old
= current_buffer
;
3408 Fprinc (object
, Qnil
);
3409 set_buffer_internal (XBUFFER (Vstandard_output
));
3410 call0 (intern ("help-mode"));
3411 set_buffer_internal (old
);
3415 /* Copy out or in the info on where C-g should throw to.
3416 This is used when running Lisp code from within get_char,
3417 in case get_char is called recursively.
3418 See read_process_output. */
3424 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3428 restore_getcjmp (temp
)
3431 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3436 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3437 of this function. */
3440 tracking_off (old_value
)
3441 Lisp_Object old_value
;
3443 do_mouse_tracking
= old_value
;
3444 if (NILP (old_value
))
3446 /* Redisplay may have been preempted because there was input
3447 available, and it assumes it will be called again after the
3448 input has been processed. If the only input available was
3449 the sort that we have just disabled, then we need to call
3451 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3453 redisplay_preserve_echo_area (6);
3454 get_input_pending (&input_pending
,
3455 READABLE_EVENTS_DO_TIMERS_NOW
);
3461 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3462 doc
: /* Evaluate BODY with mouse movement events enabled.
3463 Within a `track-mouse' form, mouse motion generates input events that
3464 you can read with `read-event'.
3465 Normally, mouse motion is ignored.
3466 usage: (track-mouse BODY ...) */)
3470 int count
= SPECPDL_INDEX ();
3473 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3475 do_mouse_tracking
= Qt
;
3477 val
= Fprogn (args
);
3478 return unbind_to (count
, val
);
3481 /* If mouse has moved on some frame, return one of those frames.
3482 Return 0 otherwise. */
3487 Lisp_Object tail
, frame
;
3489 FOR_EACH_FRAME (tail
, frame
)
3491 if (XFRAME (frame
)->mouse_moved
)
3492 return XFRAME (frame
);
3498 #endif /* HAVE_MOUSE */
3500 /* Low level keyboard/mouse input.
3501 kbd_buffer_store_event places events in kbd_buffer, and
3502 kbd_buffer_get_event retrieves them. */
3504 /* Return true iff there are any events in the queue that read-char
3505 would return. If this returns false, a read-char would block. */
3507 readable_events (flags
)
3510 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3513 /* If the buffer contains only FOCUS_IN_EVENT events, and
3514 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3515 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3517 if (flags
& (READABLE_EVENTS_FILTER_EVENTS
3518 #ifdef USE_TOOLKIT_SCROLL_BARS
3519 | READABLE_EVENTS_IGNORE_SQUEEZABLES
3523 struct input_event
*event
;
3525 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3532 #ifdef USE_TOOLKIT_SCROLL_BARS
3533 (flags
& READABLE_EVENTS_FILTER_EVENTS
) &&
3535 event
->kind
== FOCUS_IN_EVENT
)
3536 #ifdef USE_TOOLKIT_SCROLL_BARS
3537 && !((flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3538 && event
->kind
== SCROLL_BAR_CLICK_EVENT
3539 && event
->part
== scroll_bar_handle
3540 && event
->modifiers
== 0)
3545 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3548 while (event
!= kbd_store_ptr
);
3555 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3556 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3561 if (current_kboard
->kbd_queue_has_data
)
3567 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3568 if (kb
->kbd_queue_has_data
)
3574 /* Set this for debugging, to have a way to get out */
3579 event_to_kboard (event
)
3580 struct input_event
*event
;
3583 frame
= event
->frame_or_window
;
3585 frame
= XCAR (frame
);
3586 else if (WINDOWP (frame
))
3587 frame
= WINDOW_FRAME (XWINDOW (frame
));
3589 /* There are still some events that don't set this field.
3590 For now, just ignore the problem.
3591 Also ignore dead frames here. */
3592 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3595 return FRAME_KBOARD (XFRAME (frame
));
3600 Lisp_Object Vthrow_on_input
;
3602 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3605 kbd_buffer_store_event (event
)
3606 register struct input_event
*event
;
3608 kbd_buffer_store_event_hold (event
, 0);
3611 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3613 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3614 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3615 Else, if EVENT is a quit event, store the quit event
3616 in HOLD_QUIT, and return (thus ignoring further events).
3618 This is used in read_avail_input to postpone the processing
3619 of the quit event until all subsequent input events have been
3620 parsed (and discarded).
3624 kbd_buffer_store_event_hold (event
, hold_quit
)
3625 register struct input_event
*event
;
3626 struct input_event
*hold_quit
;
3628 if (event
->kind
== NO_EVENT
)
3631 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3634 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3636 register int c
= event
->code
& 0377;
3638 if (event
->modifiers
& ctrl_modifier
)
3639 c
= make_ctrl_char (c
);
3641 c
|= (event
->modifiers
3642 & (meta_modifier
| alt_modifier
3643 | hyper_modifier
| super_modifier
));
3649 struct input_event
*sp
;
3652 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3653 kb
!= current_kboard
))
3656 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3657 Fcons (make_number (c
), Qnil
));
3658 kb
->kbd_queue_has_data
= 1;
3659 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3661 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3664 if (event_to_kboard (sp
) == kb
)
3666 sp
->kind
= NO_EVENT
;
3667 sp
->frame_or_window
= Qnil
;
3677 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3681 /* If this results in a quit_char being returned to Emacs as
3682 input, set Vlast_event_frame properly. If this doesn't
3683 get returned to Emacs as an event, the next event read
3684 will set Vlast_event_frame again, so this is safe to do. */
3688 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3690 focus
= event
->frame_or_window
;
3691 internal_last_event_frame
= focus
;
3692 Vlast_event_frame
= focus
;
3695 last_event_timestamp
= event
->timestamp
;
3696 interrupt_signal (0 /* dummy */);
3700 if (c
&& c
== stop_character
)
3706 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3707 Just ignore the second one. */
3708 else if (event
->kind
== BUFFER_SWITCH_EVENT
3709 && kbd_fetch_ptr
!= kbd_store_ptr
3710 && ((kbd_store_ptr
== kbd_buffer
3711 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3712 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3715 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3716 kbd_store_ptr
= kbd_buffer
;
3718 /* Don't let the very last slot in the buffer become full,
3719 since that would make the two pointers equal,
3720 and that is indistinguishable from an empty buffer.
3721 Discard the event if it would fill the last slot. */
3722 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3724 *kbd_store_ptr
= *event
;
3728 /* If we're inside while-no-input, and this event qualifies
3729 as input, set quit-flag to cause an interrupt. */
3730 if (!NILP (Vthrow_on_input
)
3731 && event
->kind
!= FOCUS_IN_EVENT
3732 && event
->kind
!= HELP_EVENT
3733 && event
->kind
!= DEICONIFY_EVENT
)
3735 Vquit_flag
= Vthrow_on_input
;
3736 /* If we're inside a function that wants immediate quits,
3738 if (immediate_quit
&& NILP (Vinhibit_quit
))
3748 /* Put an input event back in the head of the event queue. */
3751 kbd_buffer_unget_event (event
)
3752 register struct input_event
*event
;
3754 if (kbd_fetch_ptr
== kbd_buffer
)
3755 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3757 /* Don't let the very last slot in the buffer become full, */
3758 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3761 *kbd_fetch_ptr
= *event
;
3766 /* Generate HELP_EVENT input_events in BUFP which has room for
3767 SIZE events. If there's not enough room in BUFP, ignore this
3770 HELP is the help form.
3772 FRAME is the frame on which the help is generated. OBJECT is the
3773 Lisp object where the help was found (a buffer, a string, an
3774 overlay, or nil if neither from a string nor from a buffer. POS is
3775 the position within OBJECT where the help was found.
3777 Value is the number of input_events generated. */
3780 gen_help_event (help
, frame
, window
, object
, pos
)
3781 Lisp_Object help
, frame
, object
, window
;
3784 struct input_event event
;
3788 event
.kind
= HELP_EVENT
;
3789 event
.frame_or_window
= frame
;
3791 event
.x
= WINDOWP (window
) ? window
: frame
;
3794 kbd_buffer_store_event (&event
);
3798 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3801 kbd_buffer_store_help_event (frame
, help
)
3802 Lisp_Object frame
, help
;
3804 struct input_event event
;
3806 event
.kind
= HELP_EVENT
;
3807 event
.frame_or_window
= frame
;
3812 kbd_buffer_store_event (&event
);
3816 /* Discard any mouse events in the event buffer by setting them to
3819 discard_mouse_events ()
3821 struct input_event
*sp
;
3822 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3824 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3827 if (sp
->kind
== MOUSE_CLICK_EVENT
3828 || sp
->kind
== WHEEL_EVENT
3830 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3832 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3834 sp
->kind
= NO_EVENT
;
3840 /* Return non-zero if there are any real events waiting in the event
3841 buffer, not counting `NO_EVENT's.
3843 If DISCARD is non-zero, discard NO_EVENT events at the front of
3844 the input queue, possibly leaving the input queue empty if there
3845 are no real input events. */
3848 kbd_buffer_events_waiting (discard
)
3851 struct input_event
*sp
;
3853 for (sp
= kbd_fetch_ptr
;
3854 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3857 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3864 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3868 /* Clear input event EVENT. */
3872 struct input_event
*event
;
3874 event
->kind
= NO_EVENT
;
3878 /* Read one event from the event buffer, waiting if necessary.
3879 The value is a Lisp object representing the event.
3880 The value is nil for an event that should be ignored,
3881 or that was handled here.
3882 We always read and discard one event. */
3885 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3887 int *used_mouse_menu
;
3896 *kbp
= current_kboard
;
3900 /* Wait until there is input available. */
3903 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3906 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3910 /* If the quit flag is set, then read_char will return
3911 quit_char, so that counts as "available input." */
3912 if (!NILP (Vquit_flag
))
3913 quit_throw_to_read_char ();
3915 /* One way or another, wait until input is available; then, if
3916 interrupt handlers have not read it, read it now. */
3919 wait_for_kbd_input ();
3921 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3925 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3928 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3932 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3934 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3935 /* Pass 1 for EXPECT since we just waited to have input. */
3936 read_avail_input (1);
3938 #endif /* not VMS */
3941 if (CONSP (Vunread_command_events
))
3944 first
= XCAR (Vunread_command_events
);
3945 Vunread_command_events
= XCDR (Vunread_command_events
);
3946 *kbp
= current_kboard
;
3950 /* At this point, we know that there is a readable event available
3951 somewhere. If the event queue is empty, then there must be a
3952 mouse movement enabled and available. */
3953 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3955 struct input_event
*event
;
3957 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3961 last_event_timestamp
= event
->timestamp
;
3964 *kbp
= event_to_kboard (event
);
3966 *kbp
= current_kboard
; /* Better than returning null ptr? */
3968 *kbp
= &the_only_kboard
;
3973 /* These two kinds of events get special handling
3974 and don't actually appear to the command loop.
3975 We return nil for them. */
3976 if (event
->kind
== SELECTION_REQUEST_EVENT
3977 || event
->kind
== SELECTION_CLEAR_EVENT
)
3980 struct input_event copy
;
3982 /* Remove it from the buffer before processing it,
3983 since otherwise swallow_events will see it
3984 and process it again. */
3986 kbd_fetch_ptr
= event
+ 1;
3987 input_pending
= readable_events (0);
3988 x_handle_selection_event (©
);
3990 /* We're getting selection request events, but we don't have
3996 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3997 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3999 /* Make an event (delete-frame (FRAME)). */
4000 obj
= Fcons (event
->frame_or_window
, Qnil
);
4001 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
4002 kbd_fetch_ptr
= event
+ 1;
4005 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
4006 else if (event
->kind
== ICONIFY_EVENT
)
4008 /* Make an event (iconify-frame (FRAME)). */
4009 obj
= Fcons (event
->frame_or_window
, Qnil
);
4010 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
4011 kbd_fetch_ptr
= event
+ 1;
4013 else if (event
->kind
== DEICONIFY_EVENT
)
4015 /* Make an event (make-frame-visible (FRAME)). */
4016 obj
= Fcons (event
->frame_or_window
, Qnil
);
4017 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
4018 kbd_fetch_ptr
= event
+ 1;
4021 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
4023 /* The value doesn't matter here; only the type is tested. */
4024 XSETBUFFER (obj
, current_buffer
);
4025 kbd_fetch_ptr
= event
+ 1;
4027 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4028 || defined (USE_GTK)
4029 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4031 kbd_fetch_ptr
= event
+ 1;
4032 input_pending
= readable_events (0);
4033 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4034 x_activate_menubar (XFRAME (event
->frame_or_window
));
4037 #if defined (WINDOWSNT) || defined (MAC_OS)
4038 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4041 /* Make an event (language-change (KEY_SCRIPT)). */
4042 obj
= Fcons (make_number (event
->code
), Qnil
);
4044 /* Make an event (language-change (FRAME CHARSET LCID)). */
4045 obj
= Fcons (event
->frame_or_window
, Qnil
);
4047 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4048 kbd_fetch_ptr
= event
+ 1;
4051 else if (event
->kind
== SAVE_SESSION_EVENT
)
4053 obj
= Fcons (Qsave_session
, Qnil
);
4054 kbd_fetch_ptr
= event
+ 1;
4056 /* Just discard these, by returning nil.
4057 With MULTI_KBOARD, these events are used as placeholders
4058 when we need to randomly delete events from the queue.
4059 (They shouldn't otherwise be found in the buffer,
4060 but on some machines it appears they do show up
4061 even without MULTI_KBOARD.) */
4062 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4063 mouse events during a popup-menu call. */
4064 else if (event
->kind
== NO_EVENT
)
4065 kbd_fetch_ptr
= event
+ 1;
4066 else if (event
->kind
== HELP_EVENT
)
4068 Lisp_Object object
, position
, help
, frame
, window
;
4070 frame
= event
->frame_or_window
;
4071 object
= event
->arg
;
4072 position
= make_number (event
->code
);
4075 clear_event (event
);
4077 kbd_fetch_ptr
= event
+ 1;
4078 if (!WINDOWP (window
))
4080 obj
= Fcons (Qhelp_echo
,
4081 list5 (frame
, help
, window
, object
, position
));
4083 else if (event
->kind
== FOCUS_IN_EVENT
)
4085 /* Notification of a FocusIn event. The frame receiving the
4086 focus is in event->frame_or_window. Generate a
4087 switch-frame event if necessary. */
4088 Lisp_Object frame
, focus
;
4090 frame
= event
->frame_or_window
;
4091 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4095 if (!EQ (frame
, internal_last_event_frame
)
4096 && !EQ (frame
, selected_frame
))
4097 obj
= make_lispy_switch_frame (frame
);
4098 internal_last_event_frame
= frame
;
4099 kbd_fetch_ptr
= event
+ 1;
4103 /* If this event is on a different frame, return a switch-frame this
4104 time, and leave the event in the queue for next time. */
4108 frame
= event
->frame_or_window
;
4110 frame
= XCAR (frame
);
4111 else if (WINDOWP (frame
))
4112 frame
= WINDOW_FRAME (XWINDOW (frame
));
4114 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4118 if (! EQ (frame
, internal_last_event_frame
)
4119 && !EQ (frame
, selected_frame
))
4120 obj
= make_lispy_switch_frame (frame
);
4121 internal_last_event_frame
= frame
;
4123 /* If we didn't decide to make a switch-frame event, go ahead
4124 and build a real event from the queue entry. */
4128 obj
= make_lispy_event (event
);
4130 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4131 || defined (USE_GTK)
4132 /* If this was a menu selection, then set the flag to inhibit
4133 writing to last_nonmenu_event. Don't do this if the event
4134 we're returning is (menu-bar), though; that indicates the
4135 beginning of the menu sequence, and we might as well leave
4136 that as the `event with parameters' for this selection. */
4138 && !EQ (event
->frame_or_window
, event
->arg
)
4139 && (event
->kind
== MENU_BAR_EVENT
4140 || event
->kind
== TOOL_BAR_EVENT
))
4141 *used_mouse_menu
= 1;
4144 /* Wipe out this event, to catch bugs. */
4145 clear_event (event
);
4146 kbd_fetch_ptr
= event
+ 1;
4151 /* Try generating a mouse motion event. */
4152 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4154 FRAME_PTR f
= some_mouse_moved ();
4155 Lisp_Object bar_window
;
4156 enum scroll_bar_part part
;
4160 *kbp
= current_kboard
;
4161 /* Note that this uses F to determine which display to look at.
4162 If there is no valid info, it does not store anything
4163 so x remains nil. */
4165 (*mouse_position_hook
) (&f
, 0, &bar_window
, &part
, &x
, &y
, &time
);
4169 /* Decide if we should generate a switch-frame event. Don't
4170 generate switch-frame events for motion outside of all Emacs
4176 frame
= FRAME_FOCUS_FRAME (f
);
4178 XSETFRAME (frame
, f
);
4180 if (! EQ (frame
, internal_last_event_frame
)
4181 && !EQ (frame
, selected_frame
))
4182 obj
= make_lispy_switch_frame (frame
);
4183 internal_last_event_frame
= frame
;
4186 /* If we didn't decide to make a switch-frame event, go ahead and
4187 return a mouse-motion event. */
4188 if (!NILP (x
) && NILP (obj
))
4189 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4191 #endif /* HAVE_MOUSE */
4193 /* We were promised by the above while loop that there was
4194 something for us to read! */
4197 input_pending
= readable_events (0);
4199 Vlast_event_frame
= internal_last_event_frame
;
4204 /* Process any events that are not user-visible,
4205 then return, without reading any user-visible events. */
4208 swallow_events (do_display
)
4213 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4215 struct input_event
*event
;
4217 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4221 last_event_timestamp
= event
->timestamp
;
4223 /* These two kinds of events get special handling
4224 and don't actually appear to the command loop. */
4225 if (event
->kind
== SELECTION_REQUEST_EVENT
4226 || event
->kind
== SELECTION_CLEAR_EVENT
)
4229 struct input_event copy
;
4231 /* Remove it from the buffer before processing it,
4232 since otherwise swallow_events called recursively could see it
4233 and process it again. */
4235 kbd_fetch_ptr
= event
+ 1;
4236 input_pending
= readable_events (0);
4237 x_handle_selection_event (©
);
4239 /* We're getting selection request events, but we don't have
4248 old_timers_run
= timers_run
;
4249 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4251 if (timers_run
!= old_timers_run
&& do_display
)
4252 redisplay_preserve_echo_area (7);
4255 /* Record the start of when Emacs is idle,
4256 for the sake of running idle-time timers. */
4263 /* If we are already in the idle state, do nothing. */
4264 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4267 EMACS_GET_TIME (timer_idleness_start_time
);
4269 timer_last_idleness_start_time
= timer_idleness_start_time
;
4271 /* Mark all idle-time timers as once again candidates for running. */
4272 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4276 timer
= XCAR (timers
);
4278 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4280 XVECTOR (timer
)->contents
[0] = Qnil
;
4284 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4289 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4292 /* Resume idle timer from last idle start time. */
4295 timer_resume_idle ()
4297 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4300 timer_idleness_start_time
= timer_last_idleness_start_time
;
4303 /* This is only for debugging. */
4304 struct input_event last_timer_event
;
4306 /* Check whether a timer has fired. To prevent larger problems we simply
4307 disregard elements that are not proper timers. Do not make a circular
4308 timer list for the time being.
4310 Returns the number of seconds to wait until the next timer fires. If a
4311 timer is triggering now, return zero seconds.
4312 If no timer is active, return -1 seconds.
4314 If a timer is ripe, we run it, with quitting turned off.
4316 DO_IT_NOW is now ignored. It used to mean that we should
4317 run the timer directly instead of queueing a timer-event.
4318 Now we always run timers directly. */
4321 timer_check (do_it_now
)
4324 EMACS_TIME nexttime
;
4325 EMACS_TIME now
, idleness_now
;
4326 Lisp_Object timers
, idle_timers
, chosen_timer
;
4327 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4329 EMACS_SET_SECS (nexttime
, -1);
4330 EMACS_SET_USECS (nexttime
, -1);
4332 /* Always consider the ordinary timers. */
4333 timers
= Vtimer_list
;
4334 /* Consider the idle timers only if Emacs is idle. */
4335 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4336 idle_timers
= Vtimer_idle_list
;
4339 chosen_timer
= Qnil
;
4340 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4342 if (CONSP (timers
) || CONSP (idle_timers
))
4344 EMACS_GET_TIME (now
);
4345 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4346 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4349 while (CONSP (timers
) || CONSP (idle_timers
))
4351 Lisp_Object
*vector
;
4352 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4353 EMACS_TIME timer_time
, idle_timer_time
;
4354 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4356 /* Skip past invalid timers and timers already handled. */
4359 timer
= XCAR (timers
);
4360 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4362 timers
= XCDR (timers
);
4365 vector
= XVECTOR (timer
)->contents
;
4367 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4368 || !INTEGERP (vector
[3])
4369 || ! NILP (vector
[0]))
4371 timers
= XCDR (timers
);
4375 if (!NILP (idle_timers
))
4377 timer
= XCAR (idle_timers
);
4378 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4380 idle_timers
= XCDR (idle_timers
);
4383 vector
= XVECTOR (timer
)->contents
;
4385 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4386 || !INTEGERP (vector
[3])
4387 || ! NILP (vector
[0]))
4389 idle_timers
= XCDR (idle_timers
);
4394 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4395 based on the next ordinary timer.
4396 TIMER_DIFFERENCE is the distance in time from NOW to when
4397 this timer becomes ripe (negative if it's already ripe). */
4400 timer
= XCAR (timers
);
4401 vector
= XVECTOR (timer
)->contents
;
4402 EMACS_SET_SECS (timer_time
,
4403 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4404 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4405 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4408 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4409 based on the next idle timer. */
4410 if (!NILP (idle_timers
))
4412 idle_timer
= XCAR (idle_timers
);
4413 vector
= XVECTOR (idle_timer
)->contents
;
4414 EMACS_SET_SECS (idle_timer_time
,
4415 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4416 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4417 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4420 /* Decide which timer is the next timer,
4421 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4422 Also step down the list where we found that timer. */
4424 if (! NILP (timers
) && ! NILP (idle_timers
))
4427 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4428 if (EMACS_TIME_NEG_P (temp
))
4430 chosen_timer
= timer
;
4431 timers
= XCDR (timers
);
4432 difference
= timer_difference
;
4436 chosen_timer
= idle_timer
;
4437 idle_timers
= XCDR (idle_timers
);
4438 difference
= idle_timer_difference
;
4441 else if (! NILP (timers
))
4443 chosen_timer
= timer
;
4444 timers
= XCDR (timers
);
4445 difference
= timer_difference
;
4449 chosen_timer
= idle_timer
;
4450 idle_timers
= XCDR (idle_timers
);
4451 difference
= idle_timer_difference
;
4453 vector
= XVECTOR (chosen_timer
)->contents
;
4455 /* If timer is ripe, run it if it hasn't been run. */
4456 if (EMACS_TIME_NEG_P (difference
)
4457 || (EMACS_SECS (difference
) == 0
4458 && EMACS_USECS (difference
) == 0))
4460 if (NILP (vector
[0]))
4462 int was_locked
= single_kboard
;
4463 int count
= SPECPDL_INDEX ();
4464 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4466 /* Mark the timer as triggered to prevent problems if the lisp
4467 code fails to reschedule it right. */
4470 specbind (Qinhibit_quit
, Qt
);
4472 call1 (Qtimer_event_handler
, chosen_timer
);
4473 Vdeactivate_mark
= old_deactivate_mark
;
4475 unbind_to (count
, Qnil
);
4477 /* Resume allowing input from any kboard, if that was true before. */
4479 any_kboard_state ();
4481 /* Since we have handled the event,
4482 we don't need to tell the caller to wake up and do it. */
4486 /* When we encounter a timer that is still waiting,
4487 return the amount of time to wait before it is ripe. */
4494 /* No timers are pending in the future. */
4495 /* Return 0 if we generated an event, and -1 if not. */
4500 /* Caches for modify_event_symbol. */
4501 static Lisp_Object accent_key_syms
;
4502 static Lisp_Object func_key_syms
;
4503 static Lisp_Object mouse_syms
;
4504 static Lisp_Object wheel_syms
;
4505 static Lisp_Object drag_n_drop_syms
;
4507 /* This is a list of keysym codes for special "accent" characters.
4508 It parallels lispy_accent_keys. */
4510 static int lispy_accent_codes
[] =
4512 #ifdef XK_dead_circumflex
4517 #ifdef XK_dead_grave
4522 #ifdef XK_dead_tilde
4527 #ifdef XK_dead_diaeresis
4532 #ifdef XK_dead_macron
4537 #ifdef XK_dead_degree
4542 #ifdef XK_dead_acute
4547 #ifdef XK_dead_cedilla
4552 #ifdef XK_dead_breve
4557 #ifdef XK_dead_ogonek
4562 #ifdef XK_dead_caron
4567 #ifdef XK_dead_doubleacute
4568 XK_dead_doubleacute
,
4572 #ifdef XK_dead_abovedot
4577 #ifdef XK_dead_abovering
4587 #ifdef XK_dead_belowdot
4592 #ifdef XK_dead_voiced_sound
4593 XK_dead_voiced_sound
,
4597 #ifdef XK_dead_semivoiced_sound
4598 XK_dead_semivoiced_sound
,
4614 /* This is a list of Lisp names for special "accent" characters.
4615 It parallels lispy_accent_codes. */
4617 static char *lispy_accent_keys
[] =
4635 "dead-voiced-sound",
4636 "dead-semivoiced-sound",
4642 #define FUNCTION_KEY_OFFSET 0x0
4644 char *lispy_function_keys
[] =
4648 0, /* VK_LBUTTON 0x01 */
4649 0, /* VK_RBUTTON 0x02 */
4650 "cancel", /* VK_CANCEL 0x03 */
4651 0, /* VK_MBUTTON 0x04 */
4653 0, 0, 0, /* 0x05 .. 0x07 */
4655 "backspace", /* VK_BACK 0x08 */
4656 "tab", /* VK_TAB 0x09 */
4658 0, 0, /* 0x0A .. 0x0B */
4660 "clear", /* VK_CLEAR 0x0C */
4661 "return", /* VK_RETURN 0x0D */
4663 0, 0, /* 0x0E .. 0x0F */
4665 0, /* VK_SHIFT 0x10 */
4666 0, /* VK_CONTROL 0x11 */
4667 0, /* VK_MENU 0x12 */
4668 "pause", /* VK_PAUSE 0x13 */
4669 "capslock", /* VK_CAPITAL 0x14 */
4671 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4673 "escape", /* VK_ESCAPE 0x1B */
4675 0, 0, 0, 0, /* 0x1C .. 0x1F */
4677 0, /* VK_SPACE 0x20 */
4678 "prior", /* VK_PRIOR 0x21 */
4679 "next", /* VK_NEXT 0x22 */
4680 "end", /* VK_END 0x23 */
4681 "home", /* VK_HOME 0x24 */
4682 "left", /* VK_LEFT 0x25 */
4683 "up", /* VK_UP 0x26 */
4684 "right", /* VK_RIGHT 0x27 */
4685 "down", /* VK_DOWN 0x28 */
4686 "select", /* VK_SELECT 0x29 */
4687 "print", /* VK_PRINT 0x2A */
4688 "execute", /* VK_EXECUTE 0x2B */
4689 "snapshot", /* VK_SNAPSHOT 0x2C */
4690 "insert", /* VK_INSERT 0x2D */
4691 "delete", /* VK_DELETE 0x2E */
4692 "help", /* VK_HELP 0x2F */
4694 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4696 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4698 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4700 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4702 0, 0, 0, 0, 0, 0, 0, 0, 0,
4703 0, 0, 0, 0, 0, 0, 0, 0, 0,
4704 0, 0, 0, 0, 0, 0, 0, 0,
4706 "lwindow", /* VK_LWIN 0x5B */
4707 "rwindow", /* VK_RWIN 0x5C */
4708 "apps", /* VK_APPS 0x5D */
4710 0, 0, /* 0x5E .. 0x5F */
4712 "kp-0", /* VK_NUMPAD0 0x60 */
4713 "kp-1", /* VK_NUMPAD1 0x61 */
4714 "kp-2", /* VK_NUMPAD2 0x62 */
4715 "kp-3", /* VK_NUMPAD3 0x63 */
4716 "kp-4", /* VK_NUMPAD4 0x64 */
4717 "kp-5", /* VK_NUMPAD5 0x65 */
4718 "kp-6", /* VK_NUMPAD6 0x66 */
4719 "kp-7", /* VK_NUMPAD7 0x67 */
4720 "kp-8", /* VK_NUMPAD8 0x68 */
4721 "kp-9", /* VK_NUMPAD9 0x69 */
4722 "kp-multiply", /* VK_MULTIPLY 0x6A */
4723 "kp-add", /* VK_ADD 0x6B */
4724 "kp-separator", /* VK_SEPARATOR 0x6C */
4725 "kp-subtract", /* VK_SUBTRACT 0x6D */
4726 "kp-decimal", /* VK_DECIMAL 0x6E */
4727 "kp-divide", /* VK_DIVIDE 0x6F */
4728 "f1", /* VK_F1 0x70 */
4729 "f2", /* VK_F2 0x71 */
4730 "f3", /* VK_F3 0x72 */
4731 "f4", /* VK_F4 0x73 */
4732 "f5", /* VK_F5 0x74 */
4733 "f6", /* VK_F6 0x75 */
4734 "f7", /* VK_F7 0x76 */
4735 "f8", /* VK_F8 0x77 */
4736 "f9", /* VK_F9 0x78 */
4737 "f10", /* VK_F10 0x79 */
4738 "f11", /* VK_F11 0x7A */
4739 "f12", /* VK_F12 0x7B */
4740 "f13", /* VK_F13 0x7C */
4741 "f14", /* VK_F14 0x7D */
4742 "f15", /* VK_F15 0x7E */
4743 "f16", /* VK_F16 0x7F */
4744 "f17", /* VK_F17 0x80 */
4745 "f18", /* VK_F18 0x81 */
4746 "f19", /* VK_F19 0x82 */
4747 "f20", /* VK_F20 0x83 */
4748 "f21", /* VK_F21 0x84 */
4749 "f22", /* VK_F22 0x85 */
4750 "f23", /* VK_F23 0x86 */
4751 "f24", /* VK_F24 0x87 */
4753 0, 0, 0, 0, /* 0x88 .. 0x8B */
4754 0, 0, 0, 0, /* 0x8C .. 0x8F */
4756 "kp-numlock", /* VK_NUMLOCK 0x90 */
4757 "scroll", /* VK_SCROLL 0x91 */
4759 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4760 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4761 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4762 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4763 "kp-end", /* VK_NUMPAD_END 0x96 */
4764 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4765 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4766 "kp-up", /* VK_NUMPAD_UP 0x99 */
4767 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4768 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4769 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4770 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4772 0, 0, /* 0x9E .. 0x9F */
4775 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4776 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4777 * No other API or message will distinguish left and right keys this way.
4781 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4782 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4783 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4784 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4785 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4791 "attn", /* VK_ATTN 0xF6 */
4792 "crsel", /* VK_CRSEL 0xF7 */
4793 "exsel", /* VK_EXSEL 0xF8 */
4794 "ereof", /* VK_EREOF 0xF9 */
4795 "play", /* VK_PLAY 0xFA */
4796 "zoom", /* VK_ZOOM 0xFB */
4797 "noname", /* VK_NONAME 0xFC */
4798 "pa1", /* VK_PA1 0xFD */
4799 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4803 #else /* not HAVE_NTGUI */
4805 /* This should be dealt with in XTread_socket now, and that doesn't
4806 depend on the client system having the Kana syms defined. See also
4807 the XK_kana_A case below. */
4810 static char *lispy_kana_keys
[] =
4812 /* X Keysym value */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4814 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4815 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4816 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4817 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4818 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4819 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4820 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4821 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4822 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4823 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4824 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4825 "kana-i", "kana-u", "kana-e", "kana-o",
4826 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4827 "prolongedsound", "kana-A", "kana-I", "kana-U",
4828 "kana-E", "kana-O", "kana-KA", "kana-KI",
4829 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4830 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4831 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4832 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4833 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4834 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4835 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4836 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4837 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4838 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4839 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4840 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4842 #endif /* XK_kana_A */
4845 #define FUNCTION_KEY_OFFSET 0xff00
4847 /* You'll notice that this table is arranged to be conveniently
4848 indexed by X Windows keysym values. */
4849 static char *lispy_function_keys
[] =
4851 /* X Keysym value */
4853 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4854 "backspace", "tab", "linefeed", "clear",
4856 0, 0, 0, "pause", /* 0xff10...1f */
4857 0, 0, 0, 0, 0, 0, 0, "escape",
4859 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4860 "romaji", "hiragana", "katakana", "hiragana-katakana",
4861 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4862 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4863 "eisu-toggle", /* 0xff30...3f */
4864 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4865 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4867 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4868 "down", "prior", "next", "end",
4869 "begin", 0, 0, 0, 0, 0, 0, 0,
4870 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4881 "break", /* 0xff6b */
4884 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4885 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4886 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4887 0, 0, 0, 0, 0, 0, 0, 0,
4888 "kp-tab", /* 0xff89 */
4890 "kp-enter", /* 0xff8d */
4892 "kp-f1", /* 0xff91 */
4896 "kp-home", /* 0xff95 */
4901 "kp-prior", /* kp-page-up */
4902 "kp-next", /* kp-page-down */
4908 0, 0, 0, 0, 0, 0, 0, 0, 0,
4909 "kp-multiply", /* 0xffaa */
4914 "kp-divide", /* 0xffaf */
4915 "kp-0", /* 0xffb0 */
4916 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4919 "kp-equal", /* 0xffbd */
4920 "f1", /* 0xffbe */ /* IsFunctionKey */
4922 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4923 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4924 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4925 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4926 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4927 0, 0, 0, 0, 0, 0, 0, 0,
4928 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4929 0, 0, 0, 0, 0, 0, 0, "delete"
4932 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4933 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4935 static char *iso_lispy_function_keys
[] =
4937 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4938 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4939 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4940 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4941 "iso-lefttab", /* 0xfe20 */
4942 "iso-move-line-up", "iso-move-line-down",
4943 "iso-partial-line-up", "iso-partial-line-down",
4944 "iso-partial-space-left", "iso-partial-space-right",
4945 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4946 "iso-release-margin-left", "iso-release-margin-right",
4947 "iso-release-both-margins",
4948 "iso-fast-cursor-left", "iso-fast-cursor-right",
4949 "iso-fast-cursor-up", "iso-fast-cursor-down",
4950 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4951 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4954 #endif /* not HAVE_NTGUI */
4956 Lisp_Object Vlispy_mouse_stem
;
4958 static char *lispy_wheel_names
[] =
4960 "wheel-up", "wheel-down"
4963 /* drag-n-drop events are generated when a set of selected files are
4964 dragged from another application and dropped onto an Emacs window. */
4965 static char *lispy_drag_n_drop_names
[] =
4970 /* Scroll bar parts. */
4971 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4972 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4973 Lisp_Object Qtop
, Qratio
;
4975 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4976 Lisp_Object
*scroll_bar_parts
[] = {
4977 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4978 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4981 /* User signal events. */
4982 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4984 Lisp_Object
*lispy_user_signals
[] =
4986 &Qusr1_signal
, &Qusr2_signal
4990 /* A vector, indexed by button number, giving the down-going location
4991 of currently depressed buttons, both scroll bar and non-scroll bar.
4993 The elements have the form
4994 (BUTTON-NUMBER MODIFIER-MASK . REST)
4995 where REST is the cdr of a position as it would be reported in the event.
4997 The make_lispy_event function stores positions here to tell the
4998 difference between click and drag events, and to store the starting
4999 location to be included in drag events. */
5001 static Lisp_Object button_down_location
;
5003 /* Information about the most recent up-going button event: Which
5004 button, what location, and what time. */
5006 static int last_mouse_button
;
5007 static int last_mouse_x
;
5008 static int last_mouse_y
;
5009 static unsigned long button_down_time
;
5011 /* The maximum time between clicks to make a double-click, or Qnil to
5012 disable double-click detection, or Qt for no time limit. */
5014 Lisp_Object Vdouble_click_time
;
5016 /* Maximum number of pixels the mouse may be moved between clicks
5017 to make a double-click. */
5019 EMACS_INT double_click_fuzz
;
5021 /* The number of clicks in this multiple-click. */
5023 int double_click_count
;
5025 /* Return position of a mouse click or wheel event */
5028 make_lispy_position (f
, x
, y
, time
)
5034 enum window_part part
;
5035 Lisp_Object posn
= Qnil
;
5036 Lisp_Object extra_info
= Qnil
;
5039 /* Set `window' to the window under frame pixel coordinates (x,y) */
5041 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5042 &part
, &wx
, &wy
, 0);
5046 if (WINDOWP (window
))
5048 /* It's a click in window window at frame coordinates (x,y) */
5049 struct window
*w
= XWINDOW (window
);
5050 Lisp_Object string_info
= Qnil
;
5051 int textpos
= -1, rx
= -1, ry
= -1;
5052 int dx
= -1, dy
= -1;
5053 int width
= -1, height
= -1;
5054 Lisp_Object object
= Qnil
;
5056 /* Set event coordinates to window-relative coordinates
5057 for constructing the Lisp event below. */
5061 if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
5063 /* Mode line or header line. Look for a string under
5064 the mouse that may have a `local-map' property. */
5068 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5070 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5071 &object
, &dx
, &dy
, &width
, &height
);
5072 if (STRINGP (string
))
5073 string_info
= Fcons (string
, make_number (charpos
));
5074 if (w
== XWINDOW (selected_window
))
5077 textpos
= XMARKER (w
->pointm
)->charpos
;
5079 else if (part
== ON_VERTICAL_BORDER
)
5081 posn
= Qvertical_line
;
5086 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5091 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5093 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5094 &object
, &dx
, &dy
, &width
, &height
);
5095 if (STRINGP (string
))
5096 string_info
= Fcons (string
, make_number (charpos
));
5098 else if (part
== ON_LEFT_FRINGE
|| part
== ON_RIGHT_FRINGE
)
5100 posn
= (part
== ON_LEFT_FRINGE
) ? Qleft_fringe
: Qright_fringe
;
5103 if (part
== ON_RIGHT_FRINGE
)
5104 dx
-= (window_box_width (w
, LEFT_MARGIN_AREA
)
5105 + window_box_width (w
, TEXT_AREA
)
5106 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5107 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5109 else if (!WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
))
5110 dx
-= window_box_width (w
, LEFT_MARGIN_AREA
);
5115 Lisp_Object string2
, object2
= Qnil
;
5116 struct display_pos p
;
5118 int width2
, height2
;
5119 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5120 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5121 &object2
, &dx2
, &dy2
,
5123 textpos
= CHARPOS (p
.pos
);
5124 if (rx
< 0) rx
= wx
;
5125 if (ry
< 0) ry
= wy
;
5126 if (dx
< 0) dx
= dx2
;
5127 if (dy
< 0) dy
= dy2
;
5128 if (width
< 0) width
= width2
;
5129 if (height
< 0) height
= height2
;
5133 posn
= make_number (textpos
);
5134 if (STRINGP (string2
))
5135 string_info
= Fcons (string2
,
5136 make_number (CHARPOS (p
.string_pos
)));
5142 #ifdef HAVE_WINDOW_SYSTEM
5143 if (IMAGEP (object
))
5145 Lisp_Object image_map
, hotspot
;
5146 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5148 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5150 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5151 posn
= XCAR (hotspot
);
5156 extra_info
= Fcons (object
,
5157 Fcons (Fcons (make_number (dx
),
5159 Fcons (Fcons (make_number (width
),
5160 make_number (height
)),
5164 extra_info
= Fcons (string_info
,
5165 Fcons (make_number (textpos
),
5166 Fcons (Fcons (make_number (rx
),
5172 XSETFRAME (window
, f
);
5177 XSETFASTINT (*x
, 0);
5178 XSETFASTINT (*y
, 0);
5181 return Fcons (window
,
5183 Fcons (Fcons (*x
, *y
),
5184 Fcons (make_number (time
),
5188 /* Given a struct input_event, build the lisp event which represents
5189 it. If EVENT is 0, build a mouse movement event from the mouse
5190 movement buffer, which should have a movement event in it.
5192 Note that events must be passed to this function in the order they
5193 are received; this function stores the location of button presses
5194 in order to build drag events when the button is released. */
5197 make_lispy_event (event
)
5198 struct input_event
*event
;
5202 switch (SWITCH_ENUM_CAST (event
->kind
))
5204 /* A simple keystroke. */
5205 case ASCII_KEYSTROKE_EVENT
:
5207 Lisp_Object lispy_c
;
5208 int c
= event
->code
& 0377;
5209 /* Turn ASCII characters into control characters
5211 if (event
->modifiers
& ctrl_modifier
)
5212 c
= make_ctrl_char (c
);
5214 /* Add in the other modifier bits. We took care of ctrl_modifier
5215 just above, and the shift key was taken care of by the X code,
5216 and applied to control characters by make_ctrl_char. */
5217 c
|= (event
->modifiers
5218 & (meta_modifier
| alt_modifier
5219 | hyper_modifier
| super_modifier
));
5220 /* Distinguish Shift-SPC from SPC. */
5221 if ((event
->code
& 0377) == 040
5222 && event
->modifiers
& shift_modifier
)
5223 c
|= shift_modifier
;
5224 button_down_time
= 0;
5225 XSETFASTINT (lispy_c
, c
);
5229 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5231 Lisp_Object lispy_c
;
5232 int c
= event
->code
;
5234 /* Add in the other modifier bits. We took care of ctrl_modifier
5235 just above, and the shift key was taken care of by the X code,
5236 and applied to control characters by make_ctrl_char. */
5237 c
|= (event
->modifiers
5238 & (meta_modifier
| alt_modifier
5239 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5240 /* What about the `shift' modifier ? */
5241 button_down_time
= 0;
5242 XSETFASTINT (lispy_c
, c
);
5246 /* A function key. The symbol may need to have modifier prefixes
5248 case NON_ASCII_KEYSTROKE_EVENT
:
5249 button_down_time
= 0;
5251 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5252 if (event
->code
== lispy_accent_codes
[i
])
5253 return modify_event_symbol (i
,
5255 Qfunction_key
, Qnil
,
5256 lispy_accent_keys
, &accent_key_syms
,
5257 (sizeof (lispy_accent_keys
)
5258 / sizeof (lispy_accent_keys
[0])));
5262 if (event
->code
>= 0x400 && event
->code
< 0x500)
5263 return modify_event_symbol (event
->code
- 0x400,
5264 event
->modifiers
& ~shift_modifier
,
5265 Qfunction_key
, Qnil
,
5266 lispy_kana_keys
, &func_key_syms
,
5267 (sizeof (lispy_kana_keys
)
5268 / sizeof (lispy_kana_keys
[0])));
5269 #endif /* XK_kana_A */
5272 #ifdef ISO_FUNCTION_KEY_OFFSET
5273 if (event
->code
< FUNCTION_KEY_OFFSET
5274 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5275 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5277 Qfunction_key
, Qnil
,
5278 iso_lispy_function_keys
, &func_key_syms
,
5279 (sizeof (iso_lispy_function_keys
)
5280 / sizeof (iso_lispy_function_keys
[0])));
5283 /* Handle system-specific or unknown keysyms. */
5284 if (event
->code
& (1 << 28)
5285 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5286 || (event
->code
- FUNCTION_KEY_OFFSET
5287 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5288 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5290 /* We need to use an alist rather than a vector as the cache
5291 since we can't make a vector long enuf. */
5292 if (NILP (current_kboard
->system_key_syms
))
5293 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5294 return modify_event_symbol (event
->code
,
5297 current_kboard
->Vsystem_key_alist
,
5298 0, ¤t_kboard
->system_key_syms
,
5302 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5304 Qfunction_key
, Qnil
,
5305 lispy_function_keys
, &func_key_syms
,
5306 (sizeof (lispy_function_keys
)
5307 / sizeof (lispy_function_keys
[0])));
5310 /* A mouse click. Figure out where it is, decide whether it's
5311 a press, click or drag, and build the appropriate structure. */
5312 case MOUSE_CLICK_EVENT
:
5313 #ifndef USE_TOOLKIT_SCROLL_BARS
5314 case SCROLL_BAR_CLICK_EVENT
:
5317 int button
= event
->code
;
5319 Lisp_Object position
;
5320 Lisp_Object
*start_pos_ptr
;
5321 Lisp_Object start_pos
;
5325 /* Build the position as appropriate for this mouse click. */
5326 if (event
->kind
== MOUSE_CLICK_EVENT
)
5328 struct frame
*f
= XFRAME (event
->frame_or_window
);
5329 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5333 /* Ignore mouse events that were made on frame that
5334 have been deleted. */
5335 if (! FRAME_LIVE_P (f
))
5338 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5339 /* EVENT->x and EVENT->y are frame-relative pixel
5340 coordinates at this place. Under old redisplay, COLUMN
5341 and ROW are set to frame relative glyph coordinates
5342 which are then used to determine whether this click is
5343 in a menu (non-toolkit version). */
5344 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5345 &column
, &row
, NULL
, 1);
5347 /* In the non-toolkit version, clicks on the menu bar
5348 are ordinary button events in the event buffer.
5349 Distinguish them, and invoke the menu.
5351 (In the toolkit version, the toolkit handles the menu bar
5352 and Emacs doesn't know about it until after the user
5353 makes a selection.) */
5354 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5355 && (event
->modifiers
& down_modifier
))
5357 Lisp_Object items
, item
;
5362 /* Activate the menu bar on the down event. If the
5363 up event comes in before the menu code can deal with it,
5365 if (! (event
->modifiers
& down_modifier
))
5369 /* Find the menu bar item under `column'. */
5371 items
= FRAME_MENU_BAR_ITEMS (f
);
5372 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5374 Lisp_Object pos
, string
;
5375 string
= AREF (items
, i
+ 1);
5376 pos
= AREF (items
, i
+ 3);
5379 if (column
>= XINT (pos
)
5380 && column
< XINT (pos
) + SCHARS (string
))
5382 item
= AREF (items
, i
);
5387 /* ELisp manual 2.4b says (x y) are window relative but
5388 code says they are frame-relative. */
5390 = Fcons (event
->frame_or_window
,
5392 Fcons (Fcons (event
->x
, event
->y
),
5393 Fcons (make_number (event
->timestamp
),
5396 return Fcons (item
, Fcons (position
, Qnil
));
5398 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5400 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5403 #ifndef USE_TOOLKIT_SCROLL_BARS
5406 /* It's a scrollbar click. */
5408 Lisp_Object portion_whole
;
5411 window
= event
->frame_or_window
;
5412 portion_whole
= Fcons (event
->x
, event
->y
);
5413 part
= *scroll_bar_parts
[(int) event
->part
];
5417 Fcons (Qvertical_scroll_bar
,
5418 Fcons (portion_whole
,
5419 Fcons (make_number (event
->timestamp
),
5420 Fcons (part
, Qnil
)))));
5422 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5424 if (button
>= ASIZE (button_down_location
))
5426 button_down_location
= larger_vector (button_down_location
,
5428 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5431 start_pos_ptr
= &AREF (button_down_location
, button
);
5432 start_pos
= *start_pos_ptr
;
5433 *start_pos_ptr
= Qnil
;
5436 /* On window-system frames, use the value of
5437 double-click-fuzz as is. On other frames, interpret it
5438 as a multiple of 1/8 characters. */
5442 if (WINDOWP (event
->frame_or_window
))
5443 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5444 else if (FRAMEP (event
->frame_or_window
))
5445 f
= XFRAME (event
->frame_or_window
);
5449 if (FRAME_WINDOW_P (f
))
5450 fuzz
= double_click_fuzz
;
5452 fuzz
= double_click_fuzz
/ 8;
5454 is_double
= (button
== last_mouse_button
5455 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5456 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5457 && button_down_time
!= 0
5458 && (EQ (Vdouble_click_time
, Qt
)
5459 || (INTEGERP (Vdouble_click_time
)
5460 && ((int)(event
->timestamp
- button_down_time
)
5461 < XINT (Vdouble_click_time
)))));
5464 last_mouse_button
= button
;
5465 last_mouse_x
= XINT (event
->x
);
5466 last_mouse_y
= XINT (event
->y
);
5468 /* If this is a button press, squirrel away the location, so
5469 we can decide later whether it was a click or a drag. */
5470 if (event
->modifiers
& down_modifier
)
5474 double_click_count
++;
5475 event
->modifiers
|= ((double_click_count
> 2)
5480 double_click_count
= 1;
5481 button_down_time
= event
->timestamp
;
5482 *start_pos_ptr
= Fcopy_alist (position
);
5485 /* Now we're releasing a button - check the co-ordinates to
5486 see if this was a click or a drag. */
5487 else if (event
->modifiers
& up_modifier
)
5489 /* If we did not see a down before this up, ignore the up.
5490 Probably this happened because the down event chose a
5491 menu item. It would be an annoyance to treat the
5492 release of the button that chose the menu item as a
5495 if (!CONSP (start_pos
))
5498 event
->modifiers
&= ~up_modifier
;
5499 #if 0 /* Formerly we treated an up with no down as a click event. */
5500 if (!CONSP (start_pos
))
5501 event
->modifiers
|= click_modifier
;
5506 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5508 /* The third element of every position
5509 should be the (x,y) pair. */
5510 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5512 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5514 xdiff
= XFASTINT (event
->x
) - XFASTINT (XCAR (down
));
5515 ydiff
= XFASTINT (event
->y
) - XFASTINT (XCDR (down
));
5518 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5519 && ydiff
< double_click_fuzz
5520 && ydiff
> - double_click_fuzz
)
5521 /* Mouse hasn't moved (much). */
5522 event
->modifiers
|= click_modifier
;
5525 button_down_time
= 0;
5526 event
->modifiers
|= drag_modifier
;
5529 /* Don't check is_double; treat this as multiple
5530 if the down-event was multiple. */
5531 if (double_click_count
> 1)
5532 event
->modifiers
|= ((double_click_count
> 2)
5538 /* Every mouse event should either have the down_modifier or
5539 the up_modifier set. */
5543 /* Get the symbol we should use for the mouse click. */
5546 head
= modify_event_symbol (button
,
5548 Qmouse_click
, Vlispy_mouse_stem
,
5551 XVECTOR (mouse_syms
)->size
);
5552 if (event
->modifiers
& drag_modifier
)
5557 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5560 Fcons (make_number (double_click_count
),
5571 Lisp_Object position
;
5574 /* Build the position as appropriate for this mouse click. */
5575 struct frame
*f
= XFRAME (event
->frame_or_window
);
5577 /* Ignore wheel events that were made on frame that have been
5579 if (! FRAME_LIVE_P (f
))
5582 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5585 /* Set double or triple modifiers to indicate the wheel speed. */
5587 /* On window-system frames, use the value of
5588 double-click-fuzz as is. On other frames, interpret it
5589 as a multiple of 1/8 characters. */
5594 if (WINDOWP (event
->frame_or_window
))
5595 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5596 else if (FRAMEP (event
->frame_or_window
))
5597 f
= XFRAME (event
->frame_or_window
);
5601 if (FRAME_WINDOW_P (f
))
5602 fuzz
= double_click_fuzz
;
5604 fuzz
= double_click_fuzz
/ 8;
5606 is_double
= (last_mouse_button
< 0
5607 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5608 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5609 && button_down_time
!= 0
5610 && (EQ (Vdouble_click_time
, Qt
)
5611 || (INTEGERP (Vdouble_click_time
)
5612 && ((int)(event
->timestamp
- button_down_time
)
5613 < XINT (Vdouble_click_time
)))));
5616 double_click_count
++;
5617 event
->modifiers
|= ((double_click_count
> 2)
5623 double_click_count
= 1;
5624 event
->modifiers
|= click_modifier
;
5627 button_down_time
= event
->timestamp
;
5628 /* Use a negative value to distinguish wheel from mouse button. */
5629 last_mouse_button
= -1;
5630 last_mouse_x
= XINT (event
->x
);
5631 last_mouse_y
= XINT (event
->y
);
5637 if (event
->modifiers
& up_modifier
)
5639 /* Emit a wheel-up event. */
5640 event
->modifiers
&= ~up_modifier
;
5643 else if (event
->modifiers
& down_modifier
)
5645 /* Emit a wheel-down event. */
5646 event
->modifiers
&= ~down_modifier
;
5650 /* Every wheel event should either have the down_modifier or
5651 the up_modifier set. */
5654 /* Get the symbol we should use for the wheel event. */
5655 head
= modify_event_symbol (symbol_num
,
5661 ASIZE (wheel_syms
));
5664 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5667 Fcons (make_number (double_click_count
),
5676 #ifdef USE_TOOLKIT_SCROLL_BARS
5678 /* We don't have down and up events if using toolkit scroll bars,
5679 so make this always a click event. Store in the `part' of
5680 the Lisp event a symbol which maps to the following actions:
5682 `above_handle' page up
5683 `below_handle' page down
5687 `bottom' bottom of buffer
5688 `handle' thumb has been dragged.
5689 `end-scroll' end of interaction with scroll bar
5691 The incoming input_event contains in its `part' member an
5692 index of type `enum scroll_bar_part' which we can use as an
5693 index in scroll_bar_parts to get the appropriate symbol. */
5695 case SCROLL_BAR_CLICK_EVENT
:
5697 Lisp_Object position
, head
, window
, portion_whole
, part
;
5699 window
= event
->frame_or_window
;
5700 portion_whole
= Fcons (event
->x
, event
->y
);
5701 part
= *scroll_bar_parts
[(int) event
->part
];
5705 Fcons (Qvertical_scroll_bar
,
5706 Fcons (portion_whole
,
5707 Fcons (make_number (event
->timestamp
),
5708 Fcons (part
, Qnil
)))));
5710 /* Always treat scroll bar events as clicks. */
5711 event
->modifiers
|= click_modifier
;
5712 event
->modifiers
&= ~up_modifier
;
5714 if (event
->code
>= ASIZE (mouse_syms
))
5715 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5717 /* Get the symbol we should use for the mouse click. */
5718 head
= modify_event_symbol (event
->code
,
5723 XVECTOR (mouse_syms
)->size
);
5724 return Fcons (head
, Fcons (position
, Qnil
));
5727 #endif /* USE_TOOLKIT_SCROLL_BARS */
5730 case W32_SCROLL_BAR_CLICK_EVENT
:
5732 int button
= event
->code
;
5734 Lisp_Object position
;
5735 Lisp_Object
*start_pos_ptr
;
5736 Lisp_Object start_pos
;
5740 Lisp_Object portion_whole
;
5743 window
= event
->frame_or_window
;
5744 portion_whole
= Fcons (event
->x
, event
->y
);
5745 part
= *scroll_bar_parts
[(int) event
->part
];
5749 Fcons (Qvertical_scroll_bar
,
5750 Fcons (portion_whole
,
5751 Fcons (make_number (event
->timestamp
),
5752 Fcons (part
, Qnil
)))));
5755 /* Always treat W32 scroll bar events as clicks. */
5756 event
->modifiers
|= click_modifier
;
5759 /* Get the symbol we should use for the mouse click. */
5762 head
= modify_event_symbol (button
,
5767 XVECTOR (mouse_syms
)->size
);
5773 #endif /* WINDOWSNT */
5775 case DRAG_N_DROP_EVENT
:
5778 Lisp_Object head
, position
;
5781 /* The frame_or_window field should be a cons of the frame in
5782 which the event occurred and a list of the filenames
5784 if (! CONSP (event
->frame_or_window
))
5787 f
= XFRAME (XCAR (event
->frame_or_window
));
5788 files
= XCDR (event
->frame_or_window
);
5790 /* Ignore mouse events that were made on frames that
5791 have been deleted. */
5792 if (! FRAME_LIVE_P (f
))
5795 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5798 head
= modify_event_symbol (0, event
->modifiers
,
5800 lispy_drag_n_drop_names
,
5801 &drag_n_drop_syms
, 1);
5807 #endif /* HAVE_MOUSE */
5809 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5810 || defined (USE_GTK)
5811 case MENU_BAR_EVENT
:
5812 if (EQ (event
->arg
, event
->frame_or_window
))
5813 /* This is the prefix key. We translate this to
5814 `(menu_bar)' because the code in keyboard.c for menu
5815 events, which we use, relies on this. */
5816 return Fcons (Qmenu_bar
, Qnil
);
5820 case SELECT_WINDOW_EVENT
:
5821 /* Make an event (select-window (WINDOW)). */
5822 return Fcons (Qselect_window
,
5823 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5826 case TOOL_BAR_EVENT
:
5827 if (EQ (event
->arg
, event
->frame_or_window
))
5828 /* This is the prefix key. We translate this to
5829 `(tool_bar)' because the code in keyboard.c for tool bar
5830 events, which we use, relies on this. */
5831 return Fcons (Qtool_bar
, Qnil
);
5832 else if (SYMBOLP (event
->arg
))
5833 return apply_modifiers (event
->modifiers
, event
->arg
);
5836 case USER_SIGNAL_EVENT
:
5837 /* A user signal. */
5838 return *lispy_user_signals
[event
->code
];
5840 case SAVE_SESSION_EVENT
:
5841 return Qsave_session
;
5843 /* The 'kind' field of the event is something we don't recognize. */
5852 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5854 Lisp_Object bar_window
;
5855 enum scroll_bar_part part
;
5859 /* Is it a scroll bar movement? */
5860 if (frame
&& ! NILP (bar_window
))
5862 Lisp_Object part_sym
;
5864 part_sym
= *scroll_bar_parts
[(int) part
];
5865 return Fcons (Qscroll_bar_movement
,
5866 (Fcons (Fcons (bar_window
,
5867 Fcons (Qvertical_scroll_bar
,
5868 Fcons (Fcons (x
, y
),
5869 Fcons (make_number (time
),
5875 /* Or is it an ordinary mouse movement? */
5878 Lisp_Object position
;
5880 position
= make_lispy_position (frame
, &x
, &y
, time
);
5882 return Fcons (Qmouse_movement
,
5888 #endif /* HAVE_MOUSE */
5890 /* Construct a switch frame event. */
5892 make_lispy_switch_frame (frame
)
5895 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5898 /* Manipulating modifiers. */
5900 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5902 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5903 SYMBOL's name of the end of the modifiers; the string from this
5904 position is the unmodified symbol name.
5906 This doesn't use any caches. */
5909 parse_modifiers_uncached (symbol
, modifier_end
)
5917 CHECK_SYMBOL (symbol
);
5920 name
= SYMBOL_NAME (symbol
);
5922 for (i
= 0; i
+2 <= SBYTES (name
); )
5924 int this_mod_end
= 0;
5927 /* See if the name continues with a modifier word.
5928 Check that the word appears, but don't check what follows it.
5929 Set this_mod and this_mod_end to record what we find. */
5931 switch (SREF (name
, i
))
5933 #define SINGLE_LETTER_MOD(BIT) \
5934 (this_mod_end = i + 1, this_mod = BIT)
5937 SINGLE_LETTER_MOD (alt_modifier
);
5941 SINGLE_LETTER_MOD (ctrl_modifier
);
5945 SINGLE_LETTER_MOD (hyper_modifier
);
5949 SINGLE_LETTER_MOD (meta_modifier
);
5953 SINGLE_LETTER_MOD (shift_modifier
);
5957 SINGLE_LETTER_MOD (super_modifier
);
5960 #undef SINGLE_LETTER_MOD
5962 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
5963 if (i + LEN + 1 <= SBYTES (name) \
5964 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
5966 this_mod_end = i + LEN; \
5971 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
5972 MULTI_LETTER_MOD (down_modifier
, "down", 4);
5973 MULTI_LETTER_MOD (double_modifier
, "double", 6);
5977 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
5979 #undef MULTI_LETTER_MOD
5983 /* If we found no modifier, stop looking for them. */
5984 if (this_mod_end
== 0)
5987 /* Check there is a dash after the modifier, so that it
5988 really is a modifier. */
5989 if (this_mod_end
>= SBYTES (name
)
5990 || SREF (name
, this_mod_end
) != '-')
5993 /* This modifier is real; look for another. */
5994 modifiers
|= this_mod
;
5995 i
= this_mod_end
+ 1;
5998 /* Should we include the `click' modifier? */
5999 if (! (modifiers
& (down_modifier
| drag_modifier
6000 | double_modifier
| triple_modifier
))
6001 && i
+ 7 == SBYTES (name
)
6002 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
6003 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
6004 modifiers
|= click_modifier
;
6012 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
6013 prepended to the string BASE[0..BASE_LEN-1].
6014 This doesn't use any caches. */
6016 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
6019 int base_len
, base_len_byte
;
6021 /* Since BASE could contain nulls, we can't use intern here; we have
6022 to use Fintern, which expects a genuine Lisp_String, and keeps a
6025 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6031 /* Only the event queue may use the `up' modifier; it should always
6032 be turned into a click or drag event before presented to lisp code. */
6033 if (modifiers
& up_modifier
)
6036 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6037 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6038 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6039 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6040 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6041 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6042 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6043 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6044 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6045 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6046 /* The click modifier is denoted by the absence of other modifiers. */
6050 mod_len
= p
- new_mods
;
6054 Lisp_Object new_name
;
6056 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6057 mod_len
+ base_len_byte
);
6058 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6059 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6061 return Fintern (new_name
, Qnil
);
6066 static char *modifier_names
[] =
6068 "up", "down", "drag", "click", "double", "triple", 0, 0,
6069 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6070 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6072 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6074 static Lisp_Object modifier_symbols
;
6076 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6078 lispy_modifier_list (modifiers
)
6081 Lisp_Object modifier_list
;
6084 modifier_list
= Qnil
;
6085 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6086 if (modifiers
& (1<<i
))
6087 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6090 return modifier_list
;
6094 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6095 where UNMODIFIED is the unmodified form of SYMBOL,
6096 MASK is the set of modifiers present in SYMBOL's name.
6097 This is similar to parse_modifiers_uncached, but uses the cache in
6098 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6099 Qevent_symbol_elements property. */
6102 parse_modifiers (symbol
)
6105 Lisp_Object elements
;
6107 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6108 if (CONSP (elements
))
6113 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6114 Lisp_Object unmodified
;
6117 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6118 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6121 if (modifiers
& ~INTMASK
)
6123 XSETFASTINT (mask
, modifiers
);
6124 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6126 /* Cache the parsing results on SYMBOL. */
6127 Fput (symbol
, Qevent_symbol_element_mask
,
6129 Fput (symbol
, Qevent_symbol_elements
,
6130 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6132 /* Since we know that SYMBOL is modifiers applied to unmodified,
6133 it would be nice to put that in unmodified's cache.
6134 But we can't, since we're not sure that parse_modifiers is
6141 /* Apply the modifiers MODIFIERS to the symbol BASE.
6142 BASE must be unmodified.
6144 This is like apply_modifiers_uncached, but uses BASE's
6145 Qmodifier_cache property, if present. It also builds
6146 Qevent_symbol_elements properties, since it has that info anyway.
6148 apply_modifiers copies the value of BASE's Qevent_kind property to
6149 the modified symbol. */
6151 apply_modifiers (modifiers
, base
)
6155 Lisp_Object cache
, index
, entry
, new_symbol
;
6157 /* Mask out upper bits. We don't know where this value's been. */
6158 modifiers
&= INTMASK
;
6160 /* The click modifier never figures into cache indices. */
6161 cache
= Fget (base
, Qmodifier_cache
);
6162 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6163 entry
= assq_no_quit (index
, cache
);
6166 new_symbol
= XCDR (entry
);
6169 /* We have to create the symbol ourselves. */
6170 new_symbol
= apply_modifiers_uncached (modifiers
,
6171 SDATA (SYMBOL_NAME (base
)),
6172 SCHARS (SYMBOL_NAME (base
)),
6173 SBYTES (SYMBOL_NAME (base
)));
6175 /* Add the new symbol to the base's cache. */
6176 entry
= Fcons (index
, new_symbol
);
6177 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6179 /* We have the parsing info now for free, so we could add it to
6181 XSETFASTINT (index, modifiers);
6182 Fput (new_symbol, Qevent_symbol_element_mask,
6183 Fcons (base, Fcons (index, Qnil)));
6184 Fput (new_symbol, Qevent_symbol_elements,
6185 Fcons (base, lispy_modifier_list (modifiers)));
6186 Sadly, this is only correct if `base' is indeed a base event,
6187 which is not necessarily the case. -stef */
6190 /* Make sure this symbol is of the same kind as BASE.
6192 You'd think we could just set this once and for all when we
6193 intern the symbol above, but reorder_modifiers may call us when
6194 BASE's property isn't set right; we can't assume that just
6195 because it has a Qmodifier_cache property it must have its
6196 Qevent_kind set right as well. */
6197 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6201 kind
= Fget (base
, Qevent_kind
);
6203 Fput (new_symbol
, Qevent_kind
, kind
);
6210 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6211 return a symbol with the modifiers placed in the canonical order.
6212 Canonical order is alphabetical, except for down and drag, which
6213 always come last. The 'click' modifier is never written out.
6215 Fdefine_key calls this to make sure that (for example) C-M-foo
6216 and M-C-foo end up being equivalent in the keymap. */
6219 reorder_modifiers (symbol
)
6222 /* It's hopefully okay to write the code this way, since everything
6223 will soon be in caches, and no consing will be done at all. */
6226 parsed
= parse_modifiers (symbol
);
6227 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6232 /* For handling events, we often want to produce a symbol whose name
6233 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6234 to some base, like the name of a function key or mouse button.
6235 modify_event_symbol produces symbols of this sort.
6237 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6238 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6241 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6242 into symbol names, or a string specifying a name stem used to
6243 construct a symbol name or the form `STEM-N', where N is the decimal
6244 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6245 non-nil; otherwise NAME_TABLE is used.
6247 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6248 persist between calls to modify_event_symbol that it can use to
6249 store a cache of the symbols it's generated for this NAME_TABLE
6250 before. The object stored there may be a vector or an alist.
6252 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6254 MODIFIERS is a set of modifier bits (as given in struct input_events)
6255 whose prefixes should be applied to the symbol name.
6257 SYMBOL_KIND is the value to be placed in the event_kind property of
6258 the returned symbol.
6260 The symbols we create are supposed to have an
6261 `event-symbol-elements' property, which lists the modifiers present
6262 in the symbol's name. */
6265 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6266 name_table
, symbol_table
, table_size
)
6269 Lisp_Object symbol_kind
;
6270 Lisp_Object name_alist_or_stem
;
6272 Lisp_Object
*symbol_table
;
6273 unsigned int table_size
;
6276 Lisp_Object symbol_int
;
6278 /* Get rid of the "vendor-specific" bit here. */
6279 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6281 /* Is this a request for a valid symbol? */
6282 if (symbol_num
< 0 || symbol_num
>= table_size
)
6285 if (CONSP (*symbol_table
))
6286 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6288 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6289 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6290 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6291 we've never used that symbol before. */
6294 if (! VECTORP (*symbol_table
)
6295 || XVECTOR (*symbol_table
)->size
!= table_size
)
6299 XSETFASTINT (size
, table_size
);
6300 *symbol_table
= Fmake_vector (size
, Qnil
);
6303 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6306 /* Have we already used this symbol before? */
6309 /* No; let's create it. */
6310 if (CONSP (name_alist_or_stem
))
6311 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6312 else if (STRINGP (name_alist_or_stem
))
6314 int len
= SBYTES (name_alist_or_stem
);
6315 char *buf
= (char *) alloca (len
+ 50);
6316 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6317 (long) XINT (symbol_int
) + 1);
6318 value
= intern (buf
);
6320 else if (name_table
!= 0 && name_table
[symbol_num
])
6321 value
= intern (name_table
[symbol_num
]);
6323 #ifdef HAVE_WINDOW_SYSTEM
6326 char *name
= x_get_keysym_name (symbol_num
);
6328 value
= intern (name
);
6335 sprintf (buf
, "key-%d", symbol_num
);
6336 value
= intern (buf
);
6339 if (CONSP (*symbol_table
))
6340 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6342 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6344 /* Fill in the cache entries for this symbol; this also
6345 builds the Qevent_symbol_elements property, which the user
6347 apply_modifiers (modifiers
& click_modifier
, value
);
6348 Fput (value
, Qevent_kind
, symbol_kind
);
6351 /* Apply modifiers to that symbol. */
6352 return apply_modifiers (modifiers
, value
);
6355 /* Convert a list that represents an event type,
6356 such as (ctrl meta backspace), into the usual representation of that
6357 event type as a number or a symbol. */
6359 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6360 doc
: /* Convert the event description list EVENT-DESC to an event type.
6361 EVENT-DESC should contain one base event type (a character or symbol)
6362 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6363 drag, down, double or triple). The base must be last.
6364 The return value is an event type (a character or symbol) which
6365 has the same base event type and all the specified modifiers. */)
6367 Lisp_Object event_desc
;
6375 while (CONSP (rest
))
6383 /* Given a symbol, see if it is a modifier name. */
6384 if (SYMBOLP (elt
) && CONSP (rest
))
6385 this = parse_solitary_modifier (elt
);
6389 else if (!NILP (base
))
6390 error ("Two bases given in one event");
6396 /* Let the symbol A refer to the character A. */
6397 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6398 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6400 if (INTEGERP (base
))
6402 /* Turn (shift a) into A. */
6403 if ((modifiers
& shift_modifier
) != 0
6404 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6406 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6407 modifiers
&= ~shift_modifier
;
6410 /* Turn (control a) into C-a. */
6411 if (modifiers
& ctrl_modifier
)
6412 return make_number ((modifiers
& ~ctrl_modifier
)
6413 | make_ctrl_char (XINT (base
)));
6415 return make_number (modifiers
| XINT (base
));
6417 else if (SYMBOLP (base
))
6418 return apply_modifiers (modifiers
, base
);
6421 error ("Invalid base event");
6426 /* Try to recognize SYMBOL as a modifier name.
6427 Return the modifier flag bit, or 0 if not recognized. */
6430 parse_solitary_modifier (symbol
)
6433 Lisp_Object name
= SYMBOL_NAME (symbol
);
6435 switch (SREF (name
, 0))
6437 #define SINGLE_LETTER_MOD(BIT) \
6438 if (SBYTES (name) == 1) \
6441 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6442 if (LEN == SBYTES (name) \
6443 && ! strncmp (SDATA (name), NAME, LEN)) \
6447 SINGLE_LETTER_MOD (alt_modifier
);
6451 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6455 SINGLE_LETTER_MOD (ctrl_modifier
);
6459 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6460 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6464 SINGLE_LETTER_MOD (hyper_modifier
);
6468 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6472 SINGLE_LETTER_MOD (meta_modifier
);
6476 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6480 SINGLE_LETTER_MOD (shift_modifier
);
6484 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6485 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6486 SINGLE_LETTER_MOD (super_modifier
);
6490 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6491 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6492 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6496 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6499 #undef SINGLE_LETTER_MOD
6500 #undef MULTI_LETTER_MOD
6506 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6507 Such a list is not valid as an event,
6508 but it can be a Lucid-style event type list. */
6511 lucid_event_type_list_p (object
)
6516 if (! CONSP (object
))
6519 if (EQ (XCAR (object
), Qhelp_echo
)
6520 || EQ (XCAR (object
), Qvertical_line
)
6521 || EQ (XCAR (object
), Qmode_line
)
6522 || EQ (XCAR (object
), Qheader_line
))
6525 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6529 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6536 /* Store into *addr a value nonzero if terminal input chars are available.
6537 Serves the purpose of ioctl (0, FIONREAD, addr)
6538 but works even if FIONREAD does not exist.
6539 (In fact, this may actually read some input.)
6541 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6542 timer events that are ripe.
6543 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6544 events (FOCUS_IN_EVENT).
6545 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6546 movements and toolkit scroll bar thumb drags. */
6549 get_input_pending (addr
, flags
)
6553 /* First of all, have we already counted some input? */
6554 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6556 /* If input is being read as it arrives, and we have none, there is none. */
6557 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6560 /* Try to read some input and see how much we get. */
6562 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6565 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6568 gobble_input (expected
)
6573 if (interrupt_input
)
6576 mask
= sigblock (sigmask (SIGIO
));
6577 read_avail_input (expected
);
6581 #ifdef POLL_FOR_INPUT
6582 if (read_socket_hook
&& !interrupt_input
&& poll_suppress_count
== 0)
6585 mask
= sigblock (sigmask (SIGALRM
));
6586 read_avail_input (expected
);
6592 read_avail_input (expected
);
6596 /* Put a BUFFER_SWITCH_EVENT in the buffer
6597 so that read_key_sequence will notice the new current buffer. */
6600 record_asynch_buffer_change ()
6602 struct input_event event
;
6606 event
.kind
= BUFFER_SWITCH_EVENT
;
6607 event
.frame_or_window
= Qnil
;
6611 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6612 The purpose of the event is to make read_key_sequence look up the
6613 keymaps again. If we aren't in read_key_sequence, we don't need one,
6614 and the event could cause trouble by messing up (input-pending-p). */
6615 tem
= Fwaiting_for_user_input_p ();
6619 /* We never need these events if we have no asynchronous subprocesses. */
6623 /* Make sure no interrupt happens while storing the event. */
6625 if (interrupt_input
)
6628 mask
= sigblock (sigmask (SIGIO
));
6629 kbd_buffer_store_event (&event
);
6636 kbd_buffer_store_event (&event
);
6643 /* Read any terminal input already buffered up by the system
6644 into the kbd_buffer, but do not wait.
6646 EXPECTED should be nonzero if the caller knows there is some input.
6648 Except on VMS, all input is read by this function.
6649 If interrupt_input is nonzero, this function MUST be called
6650 only when SIGIO is blocked.
6652 Returns the number of keyboard chars read, or -1 meaning
6653 this is a bad time to try to read input. */
6656 read_avail_input (expected
)
6662 if (read_socket_hook
)
6665 struct input_event hold_quit
;
6667 EVENT_INIT (hold_quit
);
6668 hold_quit
.kind
= NO_EVENT
;
6670 /* No need for FIONREAD or fcntl; just say don't wait. */
6671 while (nr
= (*read_socket_hook
) (input_fd
, expected
, &hold_quit
), nr
> 0)
6676 if (hold_quit
.kind
!= NO_EVENT
)
6677 kbd_buffer_store_event (&hold_quit
);
6681 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6682 the kbd_buffer can really hold. That may prevent loss
6683 of characters on some systems when input is stuffed at us. */
6684 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6687 /* Determine how many characters we should *try* to read. */
6690 #else /* not WINDOWSNT */
6692 n_to_read
= dos_keysns ();
6695 #else /* not MSDOS */
6697 /* Find out how much input is available. */
6698 if (ioctl (input_fd
, FIONREAD
, &n_to_read
) < 0)
6699 /* Formerly simply reported no input, but that sometimes led to
6700 a failure of Emacs to terminate.
6701 SIGHUP seems appropriate if we can't reach the terminal. */
6702 /* ??? Is it really right to send the signal just to this process
6703 rather than to the whole process group?
6704 Perhaps on systems with FIONREAD Emacs is alone in its group. */
6706 if (! noninteractive
)
6707 kill (getpid (), SIGHUP
);
6713 if (n_to_read
> sizeof cbuf
)
6714 n_to_read
= sizeof cbuf
;
6715 #else /* no FIONREAD */
6716 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6717 /* Read some input if available, but don't wait. */
6718 n_to_read
= sizeof cbuf
;
6719 fcntl (input_fd
, F_SETFL
, O_NDELAY
);
6724 #endif /* not MSDOS */
6725 #endif /* not WINDOWSNT */
6727 /* Now read; for one reason or another, this will not block.
6728 NREAD is set to the number of chars read. */
6732 cbuf
[0] = dos_keyread ();
6735 nread
= emacs_read (input_fd
, cbuf
, n_to_read
);
6737 /* POSIX infers that processes which are not in the session leader's
6738 process group won't get SIGHUP's at logout time. BSDI adheres to
6739 this part standard and returns -1 from read (0) with errno==EIO
6740 when the control tty is taken away.
6741 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6742 if (nread
== -1 && errno
== EIO
)
6744 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6745 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6746 This looks incorrect, but it isn't, because _BSD causes
6747 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6748 and that causes a value other than 0 when there is no input. */
6754 /* We used to retry the read if it was interrupted.
6755 But this does the wrong thing when O_NDELAY causes
6756 an EAGAIN error. Does anybody know of a situation
6757 where a retry is actually needed? */
6759 nread
< 0 && (errno
== EAGAIN
6773 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6774 fcntl (input_fd
, F_SETFL
, 0);
6775 #endif /* USG or DGUX or CYGWIN */
6776 #endif /* no FIONREAD */
6777 for (i
= 0; i
< nread
; i
++)
6779 struct input_event buf
;
6781 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6783 if (meta_key
== 1 && (cbuf
[i
] & 0x80))
6784 buf
.modifiers
= meta_modifier
;
6789 buf
.frame_or_window
= selected_frame
;
6792 kbd_buffer_store_event (&buf
);
6793 /* Don't look at input that follows a C-g too closely.
6794 This reduces lossage due to autorepeat on C-g. */
6795 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6796 && buf
.code
== quit_char
)
6803 #endif /* not VMS */
6806 handle_async_input ()
6809 extern int select_alarmed
;
6812 interrupt_input_pending
= 0;
6817 nread
= read_avail_input (1);
6818 /* -1 means it's not ok to read the input now.
6819 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6820 0 means there was no keyboard input available. */
6825 select_alarmed
= 1; /* Force the select emulator back to life */
6830 #ifdef SIGIO /* for entire page */
6831 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6834 input_available_signal (signo
)
6837 /* Must preserve main program's value of errno. */
6838 int old_errno
= errno
;
6839 #if defined (USG) && !defined (POSIX_SIGNALS)
6840 /* USG systems forget handlers when they are used;
6841 must reestablish each time */
6842 signal (signo
, input_available_signal
);
6850 interrupt_input_pending
= 1;
6852 SIGNAL_THREAD_CHECK (signo
);
6855 if (input_available_clear_time
)
6856 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6859 handle_async_input ();
6869 /* Send ourselves a SIGIO.
6871 This function exists so that the UNBLOCK_INPUT macro in
6872 blockinput.h can have some way to take care of input we put off
6873 dealing with, without assuming that every file which uses
6874 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6876 reinvoke_input_signal ()
6879 handle_async_input ();
6885 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6886 static Lisp_Object menu_bar_one_keymap_changed_items
;
6888 /* These variables hold the vector under construction within
6889 menu_bar_items and its subroutines, and the current index
6890 for storing into that vector. */
6891 static Lisp_Object menu_bar_items_vector
;
6892 static int menu_bar_items_index
;
6894 /* Return a vector of menu items for a menu bar, appropriate
6895 to the current buffer. Each item has three elements in the vector:
6898 OLD is an old vector we can optionally reuse, or nil. */
6901 menu_bar_items (old
)
6904 /* The number of keymaps we're scanning right now, and the number of
6905 keymaps we have allocated space for. */
6908 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6909 in the current keymaps, or nil where it is not a prefix. */
6912 Lisp_Object def
, tail
;
6921 /* In order to build the menus, we need to call the keymap
6922 accessors. They all call QUIT. But this function is called
6923 during redisplay, during which a quit is fatal. So inhibit
6924 quitting while building the menus.
6925 We do this instead of specbind because (1) errors will clear it anyway
6926 and (2) this avoids risk of specpdl overflow. */
6927 oquit
= Vinhibit_quit
;
6931 menu_bar_items_vector
= old
;
6933 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6934 menu_bar_items_index
= 0;
6936 /* Build our list of keymaps.
6937 If we recognize a function key and replace its escape sequence in
6938 keybuf with its symbol, or if the sequence starts with a mouse
6939 click and we need to switch buffers, we jump back here to rebuild
6940 the initial keymaps from the current buffer. */
6944 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6945 if (!NILP (Voverriding_local_map_menu_flag
))
6947 /* Yes, use them (if non-nil) as well as the global map. */
6948 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6950 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6951 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6952 if (!NILP (Voverriding_local_map
))
6953 maps
[nmaps
++] = Voverriding_local_map
;
6957 /* No, so use major and minor mode keymaps and keymap property.
6958 Note that menu-bar bindings in the local-map and keymap
6959 properties may not work reliable, as they are only
6960 recognized when the menu-bar (or mode-line) is updated,
6961 which does not normally happen after every command. */
6964 nminor
= current_minor_maps (NULL
, &tmaps
);
6965 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
6967 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
6968 maps
[nmaps
++] = tem
;
6969 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
6971 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
6973 maps
[nmaps
++] = current_global_map
;
6976 /* Look up in each map the dummy prefix key `menu-bar'. */
6980 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
6981 if (!NILP (maps
[mapno
]))
6983 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
6987 menu_bar_one_keymap_changed_items
= Qnil
;
6988 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
6992 /* Move to the end those items that should be at the end. */
6994 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
6997 int end
= menu_bar_items_index
;
6999 for (i
= 0; i
< end
; i
+= 4)
7000 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7002 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7003 /* Move the item at index I to the end,
7004 shifting all the others forward. */
7005 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7006 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7007 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7008 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7010 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7011 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7012 (end
- i
- 4) * sizeof (Lisp_Object
));
7013 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7014 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7015 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7016 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7021 /* Add nil, nil, nil, nil at the end. */
7022 i
= menu_bar_items_index
;
7023 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7026 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7027 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7028 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7029 menu_bar_items_vector
= tem
;
7031 /* Add this item. */
7032 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7033 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7034 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7035 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7036 menu_bar_items_index
= i
;
7038 Vinhibit_quit
= oquit
;
7039 return menu_bar_items_vector
;
7042 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7043 If there's already an item for KEY, add this DEF to it. */
7045 Lisp_Object item_properties
;
7048 menu_bar_item (key
, item
, dummy1
, dummy2
)
7049 Lisp_Object key
, item
, dummy1
;
7052 struct gcpro gcpro1
;
7056 if (EQ (item
, Qundefined
))
7058 /* If a map has an explicit `undefined' as definition,
7059 discard any previously made menu bar item. */
7061 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7062 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7064 if (menu_bar_items_index
> i
+ 4)
7065 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7066 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7067 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7068 menu_bar_items_index
-= 4;
7072 /* If this keymap has already contributed to this KEY,
7073 don't contribute to it a second time. */
7074 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7075 if (!NILP (tem
) || NILP (item
))
7078 menu_bar_one_keymap_changed_items
7079 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7081 /* We add to menu_bar_one_keymap_changed_items before doing the
7082 parse_menu_item, so that if it turns out it wasn't a menu item,
7083 it still correctly hides any further menu item. */
7085 i
= parse_menu_item (item
, 0, 1);
7090 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7092 /* Find any existing item for this KEY. */
7093 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7094 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7097 /* If we did not find this KEY, add it at the end. */
7098 if (i
== menu_bar_items_index
)
7100 /* If vector is too small, get a bigger one. */
7101 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7104 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7105 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7106 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7107 menu_bar_items_vector
= tem
;
7110 /* Add this item. */
7111 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7112 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7113 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7114 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7115 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7116 menu_bar_items_index
= i
;
7118 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7122 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7123 /* If the new and the old items are not both keymaps,
7124 the lookup will only find `item'. */
7125 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7126 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7130 /* This is used as the handler when calling menu_item_eval_property. */
7132 menu_item_eval_property_1 (arg
)
7135 /* If we got a quit from within the menu computation,
7136 quit all the way out of it. This takes care of C-] in the debugger. */
7137 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7138 Fsignal (Qquit
, Qnil
);
7143 /* Evaluate an expression and return the result (or nil if something
7144 went wrong). Used to evaluate dynamic parts of menu items. */
7146 menu_item_eval_property (sexpr
)
7149 int count
= SPECPDL_INDEX ();
7151 specbind (Qinhibit_redisplay
, Qt
);
7152 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7153 menu_item_eval_property_1
);
7154 return unbind_to (count
, val
);
7157 /* This function parses a menu item and leaves the result in the
7158 vector item_properties.
7159 ITEM is a key binding, a possible menu item.
7160 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7161 evaluate dynamic expressions in the menu item.
7162 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7164 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7165 parse_menu_item returns true if the item is a menu item and false
7169 parse_menu_item (item
, notreal
, inmenubar
)
7171 int notreal
, inmenubar
;
7173 Lisp_Object def
, tem
, item_string
, start
;
7174 Lisp_Object cachelist
;
7176 Lisp_Object keyhint
;
7187 /* Create item_properties vector if necessary. */
7188 if (NILP (item_properties
))
7190 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7192 /* Initialize optional entries. */
7193 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7194 AREF (item_properties
, i
) = Qnil
;
7195 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7197 /* Save the item here to protect it from GC. */
7198 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7200 item_string
= XCAR (item
);
7204 if (STRINGP (item_string
))
7206 /* Old format menu item. */
7207 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7209 /* Maybe help string. */
7210 if (CONSP (item
) && STRINGP (XCAR (item
)))
7212 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7217 /* Maybe key binding cache. */
7218 if (CONSP (item
) && CONSP (XCAR (item
))
7219 && (NILP (XCAR (XCAR (item
)))
7220 || VECTORP (XCAR (XCAR (item
)))))
7222 cachelist
= XCAR (item
);
7226 /* This is the real definition--the function to run. */
7227 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7229 /* Get enable property, if any. */
7232 tem
= Fget (item
, Qmenu_enable
);
7234 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7237 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7239 /* New format menu item. */
7240 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7241 start
= XCDR (item
);
7244 /* We have a real binding. */
7245 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7247 item
= XCDR (start
);
7248 /* Is there a cache list with key equivalences. */
7249 if (CONSP (item
) && CONSP (XCAR (item
)))
7251 cachelist
= XCAR (item
);
7255 /* Parse properties. */
7256 while (CONSP (item
) && CONSP (XCDR (item
)))
7261 if (EQ (tem
, QCenable
))
7262 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7263 else if (EQ (tem
, QCvisible
) && !notreal
)
7265 /* If got a visible property and that evaluates to nil
7266 then ignore this item. */
7267 tem
= menu_item_eval_property (XCAR (item
));
7271 else if (EQ (tem
, QChelp
))
7272 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7273 else if (EQ (tem
, QCfilter
))
7275 else if (EQ (tem
, QCkey_sequence
))
7278 if (NILP (cachelist
)
7279 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7280 /* Be GC protected. Set keyhint to item instead of tem. */
7283 else if (EQ (tem
, QCkeys
))
7286 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7287 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7289 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7294 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7296 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7298 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7305 else if (inmenubar
|| !NILP (start
))
7309 return 0; /* not a menu item */
7311 /* If item string is not a string, evaluate it to get string.
7312 If we don't get a string, skip this item. */
7313 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7314 if (!(STRINGP (item_string
) || notreal
))
7316 item_string
= menu_item_eval_property (item_string
);
7317 if (!STRINGP (item_string
))
7319 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7322 /* If got a filter apply it on definition. */
7323 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7326 def
= menu_item_eval_property (list2 (XCAR (filter
),
7327 list2 (Qquote
, def
)));
7329 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7332 /* Enable or disable selection of item. */
7333 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7339 tem
= menu_item_eval_property (tem
);
7340 if (inmenubar
&& NILP (tem
))
7341 return 0; /* Ignore disabled items in menu bar. */
7342 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7345 /* If we got no definition, this item is just unselectable text which
7346 is OK in a submenu but not in the menubar. */
7348 return (inmenubar
? 0 : 1);
7350 /* See if this is a separate pane or a submenu. */
7351 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7352 tem
= get_keymap (def
, 0, 1);
7353 /* For a subkeymap, just record its details and exit. */
7356 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7357 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7361 /* At the top level in the menu bar, do likewise for commands also.
7362 The menu bar does not display equivalent key bindings anyway.
7363 ITEM_PROPERTY_DEF is already set up properly. */
7367 /* This is a command. See if there is an equivalent key binding. */
7368 if (NILP (cachelist
))
7370 /* We have to create a cachelist. */
7371 CHECK_IMPURE (start
);
7372 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7373 cachelist
= XCAR (XCDR (start
));
7375 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7376 if (!NILP (keyhint
))
7378 XSETCAR (cachelist
, XCAR (keyhint
));
7381 else if (STRINGP (tem
))
7383 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7384 XSETCAR (cachelist
, Qt
);
7388 tem
= XCAR (cachelist
);
7395 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7397 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7400 def
= XCAR (prefix
);
7401 prefix
= XCDR (prefix
);
7404 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7406 if (!update_menu_bindings
)
7408 else if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7410 if (newcache
/* Always check first time. */
7411 /* Should we check everything when precomputing key
7413 /* If something had no key binding before, don't recheck it
7414 because that is too slow--except if we have a list of
7415 rebound commands in Vdefine_key_rebound_commands, do
7416 recheck any command that appears in that list. */
7417 || (CONSP (Vdefine_key_rebound_commands
)
7418 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7421 /* We had a saved key. Is it still bound to the command? */
7424 /* If the command is an alias for another
7425 (such as lmenu.el set it up), check if the
7426 original command matches the cached command. */
7427 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7428 chkcache
= 1; /* Need to recompute key binding. */
7432 /* Recompute equivalent key binding. If the command is an alias
7433 for another (such as lmenu.el set it up), see if the original
7434 command name has equivalent keys. Otherwise look up the
7435 specified command itself. We don't try both, because that
7436 makes lmenu menus slow. */
7438 && SYMBOLP (XSYMBOL (def
)->function
)
7439 && ! NILP (Fget (def
, Qmenu_alias
)))
7440 def
= XSYMBOL (def
)->function
;
7441 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7442 XSETCAR (cachelist
, tem
);
7445 XSETCDR (cachelist
, Qnil
);
7449 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7451 tem
= XCAR (cachelist
);
7455 newcache
= chkcache
;
7458 tem
= Fkey_description (tem
, Qnil
);
7461 if (STRINGP (XCAR (prefix
)))
7462 tem
= concat2 (XCAR (prefix
), tem
);
7463 if (STRINGP (XCDR (prefix
)))
7464 tem
= concat2 (tem
, XCDR (prefix
));
7466 XSETCDR (cachelist
, tem
);
7470 tem
= XCDR (cachelist
);
7471 if (newcache
&& !NILP (tem
))
7473 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7474 XSETCDR (cachelist
, tem
);
7477 /* If we only want to precompute equivalent key bindings, stop here. */
7481 /* If we have an equivalent key binding, use that. */
7482 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7484 /* Include this when menu help is implemented.
7485 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7486 if (!(NILP (tem) || STRINGP (tem)))
7488 tem = menu_item_eval_property (tem);
7491 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7495 /* Handle radio buttons or toggle boxes. */
7496 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7498 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7499 = menu_item_eval_property (tem
);
7506 /***********************************************************************
7508 ***********************************************************************/
7510 /* A vector holding tool bar items while they are parsed in function
7511 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7514 static Lisp_Object tool_bar_items_vector
;
7516 /* A vector holding the result of parse_tool_bar_item. Layout is like
7517 the one for a single item in tool_bar_items_vector. */
7519 static Lisp_Object tool_bar_item_properties
;
7521 /* Next free index in tool_bar_items_vector. */
7523 static int ntool_bar_items
;
7525 /* The symbols `tool-bar', and `:image'. */
7527 extern Lisp_Object Qtool_bar
;
7528 Lisp_Object QCimage
;
7530 /* Function prototypes. */
7532 static void init_tool_bar_items
P_ ((Lisp_Object
));
7533 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7534 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7535 static void append_tool_bar_item
P_ ((void));
7538 /* Return a vector of tool bar items for keymaps currently in effect.
7539 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7540 tool bar items found. */
7543 tool_bar_items (reuse
, nitems
)
7554 /* In order to build the menus, we need to call the keymap
7555 accessors. They all call QUIT. But this function is called
7556 during redisplay, during which a quit is fatal. So inhibit
7557 quitting while building the menus. We do this instead of
7558 specbind because (1) errors will clear it anyway and (2) this
7559 avoids risk of specpdl overflow. */
7560 oquit
= Vinhibit_quit
;
7563 /* Initialize tool_bar_items_vector and protect it from GC. */
7564 init_tool_bar_items (reuse
);
7566 /* Build list of keymaps in maps. Set nmaps to the number of maps
7569 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7570 if (!NILP (Voverriding_local_map_menu_flag
))
7572 /* Yes, use them (if non-nil) as well as the global map. */
7573 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7575 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7576 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7577 if (!NILP (Voverriding_local_map
))
7578 maps
[nmaps
++] = Voverriding_local_map
;
7582 /* No, so use major and minor mode keymaps and keymap property.
7583 Note that tool-bar bindings in the local-map and keymap
7584 properties may not work reliable, as they are only
7585 recognized when the tool-bar (or mode-line) is updated,
7586 which does not normally happen after every command. */
7589 nminor
= current_minor_maps (NULL
, &tmaps
);
7590 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7592 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7593 maps
[nmaps
++] = tem
;
7594 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7596 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7599 /* Add global keymap at the end. */
7600 maps
[nmaps
++] = current_global_map
;
7602 /* Process maps in reverse order and look up in each map the prefix
7604 for (i
= nmaps
- 1; i
>= 0; --i
)
7605 if (!NILP (maps
[i
]))
7609 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7614 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7615 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7617 Lisp_Object keydef
= XCAR (tail
);
7619 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7624 Vinhibit_quit
= oquit
;
7625 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7626 return tool_bar_items_vector
;
7630 /* Process the definition of KEY which is DEF. */
7633 process_tool_bar_item (key
, def
)
7634 Lisp_Object key
, def
;
7637 extern Lisp_Object Qundefined
;
7638 struct gcpro gcpro1
, gcpro2
;
7640 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7644 if (EQ (def
, Qundefined
))
7646 /* If a map has an explicit `undefined' as definition,
7647 discard any previously made item. */
7648 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7650 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7652 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7654 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7655 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7656 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7657 * sizeof (Lisp_Object
)));
7658 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7663 else if (parse_tool_bar_item (key
, def
))
7664 /* Append a new tool bar item to tool_bar_items_vector. Accept
7665 more than one definition for the same key. */
7666 append_tool_bar_item ();
7672 /* Parse a tool bar item specification ITEM for key KEY and return the
7673 result in tool_bar_item_properties. Value is zero if ITEM is
7676 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7678 CAPTION is the caption of the item, If it's not a string, it is
7679 evaluated to get a string.
7681 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7682 as binding are currently ignored.
7684 The following properties are recognized:
7688 FORM is evaluated and specifies whether the tool bar item is
7689 enabled or disabled.
7693 FORM is evaluated and specifies whether the tool bar item is visible.
7695 - `:filter FUNCTION'
7697 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7698 result is stored as the new binding.
7700 - `:button (TYPE SELECTED)'
7702 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7703 and specifies whether the button is selected (pressed) or not.
7707 IMAGES is either a single image specification or a vector of four
7708 image specifications. See enum tool_bar_item_images.
7710 - `:help HELP-STRING'.
7712 Gives a help string to display for the tool bar item. */
7715 parse_tool_bar_item (key
, item
)
7716 Lisp_Object key
, item
;
7718 /* Access slot with index IDX of vector tool_bar_item_properties. */
7719 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7721 Lisp_Object filter
= Qnil
;
7722 Lisp_Object caption
;
7725 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7726 Rule out items that aren't lists, don't start with
7727 `menu-item' or whose rest following `tool-bar-item' is not a
7730 || !EQ (XCAR (item
), Qmenu_item
)
7731 || (item
= XCDR (item
),
7735 /* Create tool_bar_item_properties vector if necessary. Reset it to
7737 if (VECTORP (tool_bar_item_properties
))
7739 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7743 tool_bar_item_properties
7744 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7747 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7748 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7750 /* Get the caption of the item. If the caption is not a string,
7751 evaluate it to get a string. If we don't get a string, skip this
7753 caption
= XCAR (item
);
7754 if (!STRINGP (caption
))
7756 caption
= menu_item_eval_property (caption
);
7757 if (!STRINGP (caption
))
7760 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7762 /* Give up if rest following the caption is not a list. */
7767 /* Store the binding. */
7768 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7771 /* Ignore cached key binding, if any. */
7772 if (CONSP (item
) && CONSP (XCAR (item
)))
7775 /* Process the rest of the properties. */
7776 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7778 Lisp_Object key
, value
;
7781 value
= XCAR (XCDR (item
));
7783 if (EQ (key
, QCenable
))
7784 /* `:enable FORM'. */
7785 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7786 else if (EQ (key
, QCvisible
))
7788 /* `:visible FORM'. If got a visible property and that
7789 evaluates to nil then ignore this item. */
7790 if (NILP (menu_item_eval_property (value
)))
7793 else if (EQ (key
, QChelp
))
7794 /* `:help HELP-STRING'. */
7795 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7796 else if (EQ (key
, QCfilter
))
7797 /* ':filter FORM'. */
7799 else if (EQ (key
, QCbutton
) && CONSP (value
))
7801 /* `:button (TYPE . SELECTED)'. */
7802 Lisp_Object type
, selected
;
7804 type
= XCAR (value
);
7805 selected
= XCDR (value
);
7806 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7808 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7809 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7812 else if (EQ (key
, QCimage
)
7814 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7815 /* Value is either a single image specification or a vector
7816 of 4 such specifications for the different button states. */
7817 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7820 /* If got a filter apply it on binding. */
7822 PROP (TOOL_BAR_ITEM_BINDING
)
7823 = menu_item_eval_property (list2 (filter
,
7825 PROP (TOOL_BAR_ITEM_BINDING
))));
7827 /* See if the binding is a keymap. Give up if it is. */
7828 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7831 /* Enable or disable selection of item. */
7832 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7833 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7834 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7836 /* Handle radio buttons or toggle boxes. */
7837 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7838 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7839 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7847 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7848 that can be reused. */
7851 init_tool_bar_items (reuse
)
7854 if (VECTORP (reuse
))
7855 tool_bar_items_vector
= reuse
;
7857 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7858 ntool_bar_items
= 0;
7862 /* Append parsed tool bar item properties from
7863 tool_bar_item_properties */
7866 append_tool_bar_item ()
7868 Lisp_Object
*to
, *from
;
7870 /* Enlarge tool_bar_items_vector if necessary. */
7871 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7872 >= XVECTOR (tool_bar_items_vector
)->size
)
7874 Lisp_Object new_vector
;
7875 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7877 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7878 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7879 XVECTOR (new_vector
)->contents
,
7880 old_size
* sizeof (Lisp_Object
));
7881 tool_bar_items_vector
= new_vector
;
7884 /* Append entries from tool_bar_item_properties to the end of
7885 tool_bar_items_vector. */
7886 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7887 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7888 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7889 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7896 /* Read a character using menus based on maps in the array MAPS.
7897 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7898 Return t if we displayed a menu but the user rejected it.
7900 PREV_EVENT is the previous input event, or nil if we are reading
7901 the first event of a key sequence.
7903 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7904 if we used a mouse menu to read the input, or zero otherwise. If
7905 USED_MOUSE_MENU is null, we don't dereference it.
7907 The prompting is done based on the prompt-string of the map
7908 and the strings associated with various map elements.
7910 This can be done with X menus or with menus put in the minibuf.
7911 These are done in different ways, depending on how the input will be read.
7912 Menus using X are done after auto-saving in read-char, getting the input
7913 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7914 and do auto-saving in the inner call of read_char. */
7917 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7920 Lisp_Object prev_event
;
7921 int *used_mouse_menu
;
7924 register Lisp_Object name
= Qnil
;
7926 if (used_mouse_menu
)
7927 *used_mouse_menu
= 0;
7929 /* Use local over global Menu maps */
7931 if (! menu_prompting
)
7934 /* Optionally disregard all but the global map. */
7935 if (inhibit_local_menu_bar_menus
)
7937 maps
+= (nmaps
- 1);
7941 /* Get the menu name from the first map that has one (a prompt string). */
7942 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7944 name
= Fkeymap_prompt (maps
[mapno
]);
7949 /* If we don't have any menus, just read a character normally. */
7950 if (!STRINGP (name
))
7954 /* If we got to this point via a mouse click,
7955 use a real menu for mouse selection. */
7956 if (EVENT_HAS_PARAMETERS (prev_event
)
7957 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7958 && !EQ (XCAR (prev_event
), Qtool_bar
))
7960 /* Display the menu and get the selection. */
7961 Lisp_Object
*realmaps
7962 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
7966 /* Use the maps that are not nil. */
7967 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7968 if (!NILP (maps
[mapno
]))
7969 realmaps
[nmaps1
++] = maps
[mapno
];
7971 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
7976 record_menu_key (XCAR (value
));
7978 /* If we got multiple events, unread all but
7980 There is no way to prevent those unread events
7981 from showing up later in last_nonmenu_event.
7982 So turn symbol and integer events into lists,
7983 to indicate that they came from a mouse menu,
7984 so that when present in last_nonmenu_event
7985 they won't confuse things. */
7986 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
7988 record_menu_key (XCAR (tem
));
7989 if (SYMBOLP (XCAR (tem
))
7990 || INTEGERP (XCAR (tem
)))
7991 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
7994 /* If we got more than one event, put all but the first
7995 onto this list to be read later.
7996 Return just the first event now. */
7997 Vunread_command_events
7998 = nconc2 (XCDR (value
), Vunread_command_events
);
7999 value
= XCAR (value
);
8001 else if (NILP (value
))
8003 if (used_mouse_menu
)
8004 *used_mouse_menu
= 1;
8007 #endif /* HAVE_MENUS */
8011 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8012 We make this bigger when necessary, and never free it. */
8013 static char *read_char_minibuf_menu_text
;
8014 /* Size of that buffer. */
8015 static int read_char_minibuf_menu_width
;
8018 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8024 register Lisp_Object name
;
8026 /* FIXME: Use the minibuffer's frame width. */
8027 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8030 Lisp_Object rest
, vector
;
8036 if (! menu_prompting
)
8039 /* Make sure we have a big enough buffer for the menu text. */
8040 if (read_char_minibuf_menu_text
== 0)
8042 read_char_minibuf_menu_width
= width
+ 4;
8043 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8045 else if (width
+ 4 > read_char_minibuf_menu_width
)
8047 read_char_minibuf_menu_width
= width
+ 4;
8048 read_char_minibuf_menu_text
8049 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8051 menu
= read_char_minibuf_menu_text
;
8053 /* Get the menu name from the first map that has one (a prompt string). */
8054 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8056 name
= Fkeymap_prompt (maps
[mapno
]);
8061 /* If we don't have any menus, just read a character normally. */
8062 if (!STRINGP (name
))
8065 /* Prompt string always starts with map's prompt, and a space. */
8066 strcpy (menu
, SDATA (name
));
8067 nlength
= SBYTES (name
);
8068 menu
[nlength
++] = ':';
8069 menu
[nlength
++] = ' ';
8072 /* Start prompting at start of first map. */
8076 /* Present the documented bindings, a line at a time. */
8083 Lisp_Object orig_defn_macro
;
8085 /* Loop over elements of map. */
8090 /* If reached end of map, start at beginning of next map. */
8094 /* At end of last map, wrap around to first map if just starting,
8095 or end this line if already have something on it. */
8099 if (notfirst
|| nobindings
) break;
8104 /* Look at the next element of the map. */
8106 elt
= XVECTOR (vector
)->contents
[idx
];
8108 elt
= Fcar_safe (rest
);
8110 if (idx
< 0 && VECTORP (elt
))
8112 /* If we found a dense table in the keymap,
8113 advanced past it, but start scanning its contents. */
8114 rest
= Fcdr_safe (rest
);
8120 /* An ordinary element. */
8121 Lisp_Object event
, tem
;
8125 event
= Fcar_safe (elt
); /* alist */
8126 elt
= Fcdr_safe (elt
);
8130 XSETINT (event
, idx
); /* vector */
8133 /* Ignore the element if it has no prompt string. */
8134 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8136 /* 1 if the char to type matches the string. */
8138 Lisp_Object upcased_event
, downcased_event
;
8139 Lisp_Object desc
= Qnil
;
8141 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8143 upcased_event
= Fupcase (event
);
8144 downcased_event
= Fdowncase (event
);
8145 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8146 || XINT (downcased_event
) == SREF (s
, 0));
8148 desc
= Fsingle_key_description (event
, Qnil
);
8150 #if 0 /* It is redundant to list the equivalent key bindings because
8151 the prefix is what the user has already typed. */
8153 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8155 /* Insert equivalent keybinding. */
8156 s
= concat2 (s
, tem
);
8159 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8160 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8162 /* Insert button prefix. */
8163 Lisp_Object selected
8164 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8165 if (EQ (tem
, QCradio
))
8166 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8168 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8169 s
= concat2 (tem
, s
);
8173 /* If we have room for the prompt string, add it to this line.
8174 If this is the first on the line, always add it. */
8175 if ((SCHARS (s
) + i
+ 2
8176 + (char_matches
? 0 : SCHARS (desc
) + 3))
8182 /* Punctuate between strings. */
8185 strcpy (menu
+ i
, ", ");
8191 /* If the char to type doesn't match the string's
8192 first char, explicitly show what char to type. */
8195 /* Add as much of string as fits. */
8196 thiswidth
= SCHARS (desc
);
8197 if (thiswidth
+ i
> width
)
8198 thiswidth
= width
- i
;
8199 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8201 strcpy (menu
+ i
, " = ");
8205 /* Add as much of string as fits. */
8206 thiswidth
= SCHARS (s
);
8207 if (thiswidth
+ i
> width
)
8208 thiswidth
= width
- i
;
8209 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8215 /* If this element does not fit, end the line now,
8216 and save the element for the next line. */
8217 strcpy (menu
+ i
, "...");
8222 /* Move past this element. */
8223 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8224 /* Handle reaching end of dense table. */
8229 rest
= Fcdr_safe (rest
);
8233 /* Prompt with that and read response. */
8234 message2_nolog (menu
, strlen (menu
),
8235 ! NILP (current_buffer
->enable_multibyte_characters
));
8237 /* Make believe its not a keyboard macro in case the help char
8238 is pressed. Help characters are not recorded because menu prompting
8239 is not used on replay.
8241 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8242 current_kboard
->defining_kbd_macro
= Qnil
;
8244 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8245 while (BUFFERP (obj
));
8246 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8248 if (!INTEGERP (obj
))
8253 if (! EQ (obj
, menu_prompt_more_char
)
8254 && (!INTEGERP (menu_prompt_more_char
)
8255 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8257 if (!NILP (current_kboard
->defining_kbd_macro
))
8258 store_kbd_macro_char (obj
);
8261 /* Help char - go round again */
8265 /* Reading key sequences. */
8267 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8268 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8269 keymap, or nil otherwise. Return the index of the first keymap in
8270 which KEY has any binding, or NMAPS if no map has a binding.
8272 If KEY is a meta ASCII character, treat it like meta-prefix-char
8273 followed by the corresponding non-meta character. Keymaps in
8274 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8277 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8280 NEXT may be the same array as CURRENT. */
8283 follow_key (key
, nmaps
, current
, defs
, next
)
8285 Lisp_Object
*current
, *defs
, *next
;
8288 int i
, first_binding
;
8290 first_binding
= nmaps
;
8291 for (i
= nmaps
- 1; i
>= 0; i
--)
8293 if (! NILP (current
[i
]))
8295 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8296 if (! NILP (defs
[i
]))
8303 /* Given the set of bindings we've found, produce the next set of maps. */
8304 if (first_binding
< nmaps
)
8305 for (i
= 0; i
< nmaps
; i
++)
8306 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8308 return first_binding
;
8311 /* Structure used to keep track of partial application of key remapping
8312 such as Vfunction_key_map and Vkey_translation_map. */
8313 typedef struct keyremap
8315 Lisp_Object map
, parent
;
8319 /* Lookup KEY in MAP.
8320 MAP is a keymap mapping keys to key vectors or functions.
8321 If the mapping is a function and DO_FUNCTION is non-zero, then
8322 the function is called with PROMPT as parameter and its return
8323 value is used as the return value of this function (after checking
8324 that it is indeed a vector). */
8327 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8328 Lisp_Object map
, key
, prompt
;
8333 next
= access_keymap (map
, key
, 1, 0, 1);
8335 /* Handle symbol with autoload definition. */
8336 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8337 && CONSP (XSYMBOL (next
)->function
)
8338 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8339 do_autoload (XSYMBOL (next
)->function
, next
);
8341 /* Handle a symbol whose function definition is a keymap
8343 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8344 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8345 || KEYMAPP (XSYMBOL (next
)->function
)))
8346 next
= XSYMBOL (next
)->function
;
8348 /* If the keymap gives a function, not an
8349 array, then call the function with one arg and use
8350 its value instead. */
8351 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8356 next
= call1 (next
, prompt
);
8357 /* If the function returned something invalid,
8358 barf--don't ignore it.
8359 (To ignore it safely, we would need to gcpro a bunch of
8360 other variables.) */
8361 if (! (VECTORP (next
) || STRINGP (next
)))
8362 error ("Function %s returns invalid key sequence", tem
);
8367 /* Do one step of the key remapping used for function-key-map and
8368 key-translation-map:
8369 KEYBUF is the buffer holding the input events.
8370 BUFSIZE is its maximum size.
8371 FKEY is a pointer to the keyremap structure to use.
8372 INPUT is the index of the last element in KEYBUF.
8373 DOIT if non-zero says that the remapping can actually take place.
8374 DIFF is used to return the number of keys added/removed by the remapping.
8375 PARENT is the root of the keymap.
8376 PROMPT is the prompt to use if the remapping happens through a function.
8377 The return value is non-zero if the remapping actually took place. */
8380 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8381 Lisp_Object
*keybuf
, prompt
;
8383 int input
, doit
, *diff
, bufsize
;
8385 Lisp_Object next
, key
;
8387 key
= keybuf
[fkey
->end
++];
8388 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8390 /* If keybuf[fkey->start..fkey->end] is bound in the
8391 map and we're in a position to do the key remapping, replace it with
8392 the binding and restart with fkey->start at the end. */
8393 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8395 int len
= XFASTINT (Flength (next
));
8398 *diff
= len
- (fkey
->end
- fkey
->start
);
8400 if (input
+ *diff
>= bufsize
)
8401 error ("Key sequence too long");
8403 /* Shift the keys that follow fkey->end. */
8405 for (i
= fkey
->end
; i
< input
; i
++)
8406 keybuf
[i
+ *diff
] = keybuf
[i
];
8408 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8409 keybuf
[i
+ *diff
] = keybuf
[i
];
8410 /* Overwrite the old keys with the new ones. */
8411 for (i
= 0; i
< len
; i
++)
8412 keybuf
[fkey
->start
+ i
]
8413 = Faref (next
, make_number (i
));
8415 fkey
->start
= fkey
->end
+= *diff
;
8416 fkey
->map
= fkey
->parent
;
8421 fkey
->map
= get_keymap (next
, 0, 1);
8423 /* If we no longer have a bound suffix, try a new position for
8425 if (!CONSP (fkey
->map
))
8427 fkey
->end
= ++fkey
->start
;
8428 fkey
->map
= fkey
->parent
;
8433 /* Read a sequence of keys that ends with a non prefix character,
8434 storing it in KEYBUF, a buffer of size BUFSIZE.
8436 Return the length of the key sequence stored.
8437 Return -1 if the user rejected a command menu.
8439 Echo starting immediately unless `prompt' is 0.
8441 Where a key sequence ends depends on the currently active keymaps.
8442 These include any minor mode keymaps active in the current buffer,
8443 the current buffer's local map, and the global map.
8445 If a key sequence has no other bindings, we check Vfunction_key_map
8446 to see if some trailing subsequence might be the beginning of a
8447 function key's sequence. If so, we try to read the whole function
8448 key, and substitute its symbolic name into the key sequence.
8450 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8451 `double-' events into similar click events, if that would make them
8452 bound. We try to turn `triple-' events first into `double-' events,
8455 If we get a mouse click in a mode line, vertical divider, or other
8456 non-text area, we treat the click as if it were prefixed by the
8457 symbol denoting that area - `mode-line', `vertical-line', or
8460 If the sequence starts with a mouse click, we read the key sequence
8461 with respect to the buffer clicked on, not the current buffer.
8463 If the user switches frames in the midst of a key sequence, we put
8464 off the switch-frame event until later; the next call to
8465 read_char will return it.
8467 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8468 from the selected window's buffer. */
8471 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8472 can_return_switch_frame
, fix_current_buffer
)
8473 Lisp_Object
*keybuf
;
8476 int dont_downcase_last
;
8477 int can_return_switch_frame
;
8478 int fix_current_buffer
;
8480 volatile Lisp_Object from_string
;
8481 volatile int count
= SPECPDL_INDEX ();
8483 /* How many keys there are in the current key sequence. */
8486 /* The length of the echo buffer when we started reading, and
8487 the length of this_command_keys when we started reading. */
8488 volatile int echo_start
;
8489 volatile int keys_start
;
8491 /* The number of keymaps we're scanning right now, and the number of
8492 keymaps we have allocated space for. */
8494 volatile int nmaps_allocated
= 0;
8496 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8497 the current keymaps. */
8498 Lisp_Object
*volatile defs
= NULL
;
8500 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8501 in the current keymaps, or nil where it is not a prefix. */
8502 Lisp_Object
*volatile submaps
= NULL
;
8504 /* The local map to start out with at start of key sequence. */
8505 volatile Lisp_Object orig_local_map
;
8507 /* The map from the `keymap' property to start out with at start of
8509 volatile Lisp_Object orig_keymap
;
8511 /* 1 if we have already considered switching to the local-map property
8512 of the place where a mouse click occurred. */
8513 volatile int localized_local_map
= 0;
8515 /* The index in defs[] of the first keymap that has a binding for
8516 this key sequence. In other words, the lowest i such that
8517 defs[i] is non-nil. */
8518 volatile int first_binding
;
8519 /* Index of the first key that has no binding.
8520 It is useless to try fkey.start larger than that. */
8521 volatile int first_unbound
;
8523 /* If t < mock_input, then KEYBUF[t] should be read as the next
8526 We use this to recover after recognizing a function key. Once we
8527 realize that a suffix of the current key sequence is actually a
8528 function key's escape sequence, we replace the suffix with the
8529 function key's binding from Vfunction_key_map. Now keybuf
8530 contains a new and different key sequence, so the echo area,
8531 this_command_keys, and the submaps and defs arrays are wrong. In
8532 this situation, we set mock_input to t, set t to 0, and jump to
8533 restart_sequence; the loop will read keys from keybuf up until
8534 mock_input, thus rebuilding the state; and then it will resume
8535 reading characters from the keyboard. */
8536 volatile int mock_input
= 0;
8538 /* If the sequence is unbound in submaps[], then
8539 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8540 and fkey.map is its binding.
8542 These might be > t, indicating that all function key scanning
8543 should hold off until t reaches them. We do this when we've just
8544 recognized a function key, to avoid searching for the function
8545 key's again in Vfunction_key_map. */
8546 volatile keyremap fkey
;
8548 /* Likewise, for key_translation_map. */
8549 volatile keyremap keytran
;
8551 /* If we receive a `switch-frame' or `select-window' event in the middle of
8552 a key sequence, we put it off for later.
8553 While we're reading, we keep the event here. */
8554 volatile Lisp_Object delayed_switch_frame
;
8556 /* See the comment below... */
8557 #if defined (GOBBLE_FIRST_EVENT)
8558 Lisp_Object first_event
;
8561 volatile Lisp_Object original_uppercase
;
8562 volatile int original_uppercase_position
= -1;
8564 /* Gets around Microsoft compiler limitations. */
8567 struct buffer
*starting_buffer
;
8569 /* List of events for which a fake prefix key has been generated. */
8570 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8572 #if defined (GOBBLE_FIRST_EVENT)
8576 struct gcpro gcpro1
;
8578 GCPRO1 (fake_prefixed_keys
);
8579 raw_keybuf_count
= 0;
8581 last_nonmenu_event
= Qnil
;
8583 delayed_switch_frame
= Qnil
;
8584 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8585 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8586 /* If there is no translation-map, turn off scanning. */
8587 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8588 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8593 echo_prompt (prompt
);
8594 else if (cursor_in_echo_area
8595 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8596 && NILP (Fzerop (Vecho_keystrokes
)))
8597 /* This doesn't put in a dash if the echo buffer is empty, so
8598 you don't always see a dash hanging out in the minibuffer. */
8602 /* Record the initial state of the echo area and this_command_keys;
8603 we will need to restore them if we replay a key sequence. */
8605 echo_start
= echo_length ();
8606 keys_start
= this_command_key_count
;
8607 this_single_command_key_start
= keys_start
;
8609 #if defined (GOBBLE_FIRST_EVENT)
8610 /* This doesn't quite work, because some of the things that read_char
8611 does cannot safely be bypassed. It seems too risky to try to make
8614 /* Read the first char of the sequence specially, before setting
8615 up any keymaps, in case a filter runs and switches buffers on us. */
8616 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8618 #endif /* GOBBLE_FIRST_EVENT */
8620 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8621 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8624 /* We jump here when the key sequence has been thoroughly changed, and
8625 we need to rescan it starting from the beginning. When we jump here,
8626 keybuf[0..mock_input] holds the sequence we should reread. */
8629 starting_buffer
= current_buffer
;
8630 first_unbound
= bufsize
+ 1;
8632 /* Build our list of keymaps.
8633 If we recognize a function key and replace its escape sequence in
8634 keybuf with its symbol, or if the sequence starts with a mouse
8635 click and we need to switch buffers, we jump back here to rebuild
8636 the initial keymaps from the current buffer. */
8639 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8640 || !NILP (Voverriding_local_map
))
8642 if (3 > nmaps_allocated
)
8644 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8645 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8646 nmaps_allocated
= 3;
8648 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8649 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8650 if (!NILP (Voverriding_local_map
))
8651 submaps
[nmaps
++] = Voverriding_local_map
;
8659 nminor
= current_minor_maps (0, &maps
);
8660 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8662 if (total
> nmaps_allocated
)
8664 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8665 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8666 nmaps_allocated
= total
;
8669 if (!NILP (orig_keymap
))
8670 submaps
[nmaps
++] = orig_keymap
;
8672 bcopy (maps
, (void *) (submaps
+ nmaps
),
8673 nminor
* sizeof (submaps
[0]));
8677 submaps
[nmaps
++] = orig_local_map
;
8679 submaps
[nmaps
++] = current_global_map
;
8681 /* Find an accurate initial value for first_binding. */
8682 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8683 if (! NILP (submaps
[first_binding
]))
8686 /* Start from the beginning in keybuf. */
8689 /* These are no-ops the first time through, but if we restart, they
8690 revert the echo area and this_command_keys to their original state. */
8691 this_command_key_count
= keys_start
;
8692 if (INTERACTIVE
&& t
< mock_input
)
8693 echo_truncate (echo_start
);
8695 /* If the best binding for the current key sequence is a keymap, or
8696 we may be looking at a function key's escape sequence, keep on
8698 while (first_binding
< nmaps
8699 /* Keep reading as long as there's a prefix binding. */
8700 ? !NILP (submaps
[first_binding
])
8701 /* Don't return in the middle of a possible function key sequence,
8702 if the only bindings we found were via case conversion.
8703 Thus, if ESC O a has a function-key-map translation
8704 and ESC o has a binding, don't return after ESC O,
8705 so that we can translate ESC O plus the next character. */
8706 : (fkey
.start
< t
|| keytran
.start
< t
))
8709 int used_mouse_menu
= 0;
8711 /* Where the last real key started. If we need to throw away a
8712 key that has expanded into more than one element of keybuf
8713 (say, a mouse click on the mode line which is being treated
8714 as [mode-line (mouse-...)], then we backtrack to this point
8716 volatile int last_real_key_start
;
8718 /* These variables are analogous to echo_start and keys_start;
8719 while those allow us to restart the entire key sequence,
8720 echo_local_start and keys_local_start allow us to throw away
8722 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8724 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8725 eassert (fkey
.start
<= fkey
.end
);
8726 eassert (keytran
.start
<= keytran
.end
);
8727 /* key-translation-map is applied *after* function-key-map. */
8728 eassert (keytran
.end
<= fkey
.start
);
8730 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8731 { /* The prefix upto first_unbound has no binding and has
8732 no translation left to do either, so we know it's unbound.
8733 If we don't stop now, we risk staying here indefinitely
8734 (if the user keeps entering fkey or keytran prefixes
8735 like C-c ESC ESC ESC ESC ...) */
8737 for (i
= first_unbound
+ 1; i
< t
; i
++)
8738 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8739 mock_input
= t
- first_unbound
- 1;
8740 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8741 fkey
.map
= fkey
.parent
;
8742 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8743 keytran
.map
= keytran
.parent
;
8744 goto replay_sequence
;
8748 error ("Key sequence too long");
8751 echo_local_start
= echo_length ();
8752 keys_local_start
= this_command_key_count
;
8753 local_first_binding
= first_binding
;
8756 /* These are no-ops, unless we throw away a keystroke below and
8757 jumped back up to replay_key; in that case, these restore the
8758 variables to their original state, allowing us to replay the
8760 if (INTERACTIVE
&& t
< mock_input
)
8761 echo_truncate (echo_local_start
);
8762 this_command_key_count
= keys_local_start
;
8763 first_binding
= local_first_binding
;
8765 /* By default, assume each event is "real". */
8766 last_real_key_start
= t
;
8768 /* Does mock_input indicate that we are re-reading a key sequence? */
8772 add_command_key (key
);
8773 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8774 && NILP (Fzerop (Vecho_keystrokes
)))
8778 /* If not, we should actually read a character. */
8783 KBOARD
*interrupted_kboard
= current_kboard
;
8784 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8785 if (setjmp (wrong_kboard_jmpbuf
))
8787 if (!NILP (delayed_switch_frame
))
8789 interrupted_kboard
->kbd_queue
8790 = Fcons (delayed_switch_frame
,
8791 interrupted_kboard
->kbd_queue
);
8792 delayed_switch_frame
= Qnil
;
8795 interrupted_kboard
->kbd_queue
8796 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8798 /* If the side queue is non-empty, ensure it begins with a
8799 switch-frame, so we'll replay it in the right context. */
8800 if (CONSP (interrupted_kboard
->kbd_queue
)
8801 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8802 !(EVENT_HAS_PARAMETERS (key
)
8803 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8807 XSETFRAME (frame
, interrupted_frame
);
8808 interrupted_kboard
->kbd_queue
8809 = Fcons (make_lispy_switch_frame (frame
),
8810 interrupted_kboard
->kbd_queue
);
8813 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8814 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8815 goto replay_sequence
;
8818 key
= read_char (NILP (prompt
), nmaps
,
8819 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8823 /* read_char returns t when it shows a menu and the user rejects it.
8827 unbind_to (count
, Qnil
);
8832 /* read_char returns -1 at the end of a macro.
8833 Emacs 18 handles this by returning immediately with a
8834 zero, so that's what we'll do. */
8835 if (INTEGERP (key
) && XINT (key
) == -1)
8838 /* The Microsoft C compiler can't handle the goto that
8844 /* If the current buffer has been changed from under us, the
8845 keymap may have changed, so replay the sequence. */
8848 timer_resume_idle ();
8851 /* Reset the current buffer from the selected window
8852 in case something changed the former and not the latter.
8853 This is to be more consistent with the behavior
8854 of the command_loop_1. */
8855 if (fix_current_buffer
)
8857 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8859 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8860 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8863 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8864 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8865 goto replay_sequence
;
8868 /* If we have a quit that was typed in another frame, and
8869 quit_throw_to_read_char switched buffers,
8870 replay to get the right keymap. */
8872 && XINT (key
) == quit_char
8873 && current_buffer
!= starting_buffer
)
8876 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8880 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8881 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8882 goto replay_sequence
;
8887 if (EVENT_HAS_PARAMETERS (key
)
8888 /* Either a `switch-frame' or a `select-window' event. */
8889 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8891 /* If we're at the beginning of a key sequence, and the caller
8892 says it's okay, go ahead and return this event. If we're
8893 in the midst of a key sequence, delay it until the end. */
8894 if (t
> 0 || !can_return_switch_frame
)
8896 delayed_switch_frame
= key
;
8902 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8905 /* Clicks in non-text areas get prefixed by the symbol
8906 in their CHAR-ADDRESS field. For example, a click on
8907 the mode line is prefixed by the symbol `mode-line'.
8909 Furthermore, key sequences beginning with mouse clicks
8910 are read using the keymaps of the buffer clicked on, not
8911 the current buffer. So we may have to switch the buffer
8914 When we turn one event into two events, we must make sure
8915 that neither of the two looks like the original--so that,
8916 if we replay the events, they won't be expanded again.
8917 If not for this, such reexpansion could happen either here
8918 or when user programs play with this-command-keys. */
8919 if (EVENT_HAS_PARAMETERS (key
))
8924 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8925 if (EQ (kind
, Qmouse_click
))
8927 Lisp_Object window
, posn
;
8929 window
= POSN_WINDOW (EVENT_START (key
));
8930 posn
= POSN_POSN (EVENT_START (key
));
8933 || (!NILP (fake_prefixed_keys
)
8934 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8936 /* We're looking a second time at an event for which
8937 we generated a fake prefix key. Set
8938 last_real_key_start appropriately. */
8940 last_real_key_start
= t
- 1;
8943 /* Key sequences beginning with mouse clicks are
8944 read using the keymaps in the buffer clicked on,
8945 not the current buffer. If we're at the
8946 beginning of a key sequence, switch buffers. */
8947 if (last_real_key_start
== 0
8949 && BUFFERP (XWINDOW (window
)->buffer
)
8950 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8952 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8956 /* Arrange to go back to the original buffer once we're
8957 done reading the key sequence. Note that we can't
8958 use save_excursion_{save,restore} here, because they
8959 save point as well as the current buffer; we don't
8960 want to save point, because redisplay may change it,
8961 to accommodate a Fset_window_start or something. We
8962 don't want to do this at the top of the function,
8963 because we may get input from a subprocess which
8964 wants to change the selected window and stuff (say,
8966 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
8968 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8970 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
8971 orig_local_map
= get_local_map (PT
, current_buffer
,
8973 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8974 goto replay_sequence
;
8977 /* For a mouse click, get the local text-property keymap
8978 of the place clicked on, rather than point. */
8979 if (last_real_key_start
== 0
8980 && CONSP (XCDR (key
))
8981 && ! localized_local_map
)
8983 Lisp_Object map_here
, start
, pos
;
8985 localized_local_map
= 1;
8986 start
= EVENT_START (key
);
8988 if (CONSP (start
) && POSN_INBUFFER_P (start
))
8990 pos
= POSN_BUFFER_POSN (start
);
8992 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
8994 map_here
= get_local_map (XINT (pos
),
8995 current_buffer
, Qlocal_map
);
8996 if (!EQ (map_here
, orig_local_map
))
8998 orig_local_map
= map_here
;
9002 goto replay_sequence
;
9004 map_here
= get_local_map (XINT (pos
),
9005 current_buffer
, Qkeymap
);
9006 if (!EQ (map_here
, orig_keymap
))
9008 orig_keymap
= map_here
;
9012 goto replay_sequence
;
9018 /* Expand mode-line and scroll-bar events into two events:
9019 use posn as a fake prefix key. */
9021 && (NILP (fake_prefixed_keys
)
9022 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9024 if (t
+ 1 >= bufsize
)
9025 error ("Key sequence too long");
9028 keybuf
[t
+ 1] = key
;
9031 /* Record that a fake prefix key has been generated
9032 for KEY. Don't modify the event; this would
9033 prevent proper action when the event is pushed
9034 back into unread-command-events. */
9035 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9037 /* If on a mode line string with a local keymap,
9038 reconsider the key sequence with that keymap. */
9039 if (string
= POSN_STRING (EVENT_START (key
)),
9040 (CONSP (string
) && STRINGP (XCAR (string
))))
9042 Lisp_Object pos
, map
, map2
;
9044 pos
= XCDR (string
);
9045 string
= XCAR (string
);
9047 && XINT (pos
) < SCHARS (string
))
9049 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9051 orig_local_map
= map
;
9052 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9055 if (!NILP (map
) || !NILP (map2
))
9056 goto replay_sequence
;
9062 else if (NILP (from_string
)
9063 && (string
= POSN_STRING (EVENT_START (key
)),
9064 (CONSP (string
) && STRINGP (XCAR (string
)))))
9066 /* For a click on a string, i.e. overlay string or a
9067 string displayed via the `display' property,
9068 consider `local-map' and `keymap' properties of
9070 Lisp_Object pos
, map
, map2
;
9072 pos
= XCDR (string
);
9073 string
= XCAR (string
);
9075 && XINT (pos
) < SCHARS (string
))
9077 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9079 orig_local_map
= map
;
9080 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9084 if (!NILP (map
) || !NILP (map2
))
9086 from_string
= string
;
9087 goto replay_sequence
;
9092 else if (CONSP (XCDR (key
))
9093 && CONSP (EVENT_START (key
))
9094 && CONSP (XCDR (EVENT_START (key
))))
9098 posn
= POSN_POSN (EVENT_START (key
));
9099 /* Handle menu-bar events:
9100 insert the dummy prefix event `menu-bar'. */
9101 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9103 if (t
+ 1 >= bufsize
)
9104 error ("Key sequence too long");
9108 /* Zap the position in key, so we know that we've
9109 expanded it, and don't try to do so again. */
9110 POSN_SET_POSN (EVENT_START (key
),
9111 Fcons (posn
, Qnil
));
9114 goto replay_sequence
;
9116 else if (CONSP (posn
))
9118 /* We're looking at the second event of a
9119 sequence which we expanded before. Set
9120 last_real_key_start appropriately. */
9121 if (last_real_key_start
== t
&& t
> 0)
9122 last_real_key_start
= t
- 1;
9127 /* We have finally decided that KEY is something we might want
9129 first_binding
= (follow_key (key
,
9130 nmaps
- first_binding
,
9131 submaps
+ first_binding
,
9132 defs
+ first_binding
,
9133 submaps
+ first_binding
)
9136 /* If KEY wasn't bound, we'll try some fallbacks. */
9137 if (first_binding
< nmaps
)
9138 /* This is needed for the following scenario:
9139 event 0: a down-event that gets dropped by calling replay_key.
9140 event 1: some normal prefix like C-h.
9141 After event 0, first_unbound is 0, after event 1 fkey.start
9142 and keytran.start are both 1, so when we see that C-h is bound,
9143 we need to update first_unbound. */
9144 first_unbound
= max (t
+ 1, first_unbound
);
9149 /* Remember the position to put an upper bound on fkey.start. */
9150 first_unbound
= min (t
, first_unbound
);
9152 head
= EVENT_HEAD (key
);
9153 if (help_char_p (head
) && t
> 0)
9155 read_key_sequence_cmd
= Vprefix_help_command
;
9157 last_nonmenu_event
= key
;
9158 /* The Microsoft C compiler can't handle the goto that
9166 Lisp_Object breakdown
;
9169 breakdown
= parse_modifiers (head
);
9170 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9171 /* Attempt to reduce an unbound mouse event to a simpler
9172 event that is bound:
9173 Drags reduce to clicks.
9174 Double-clicks reduce to clicks.
9175 Triple-clicks reduce to double-clicks, then to clicks.
9176 Down-clicks are eliminated.
9177 Double-downs reduce to downs, then are eliminated.
9178 Triple-downs reduce to double-downs, then to downs,
9179 then are eliminated. */
9180 if (modifiers
& (down_modifier
| drag_modifier
9181 | double_modifier
| triple_modifier
))
9183 while (modifiers
& (down_modifier
| drag_modifier
9184 | double_modifier
| triple_modifier
))
9186 Lisp_Object new_head
, new_click
;
9187 if (modifiers
& triple_modifier
)
9188 modifiers
^= (double_modifier
| triple_modifier
);
9189 else if (modifiers
& double_modifier
)
9190 modifiers
&= ~double_modifier
;
9191 else if (modifiers
& drag_modifier
)
9192 modifiers
&= ~drag_modifier
;
9195 /* Dispose of this `down' event by simply jumping
9196 back to replay_key, to get another event.
9198 Note that if this event came from mock input,
9199 then just jumping back to replay_key will just
9200 hand it to us again. So we have to wipe out any
9203 We could delete keybuf[t] and shift everything
9204 after that to the left by one spot, but we'd also
9205 have to fix up any variable that points into
9206 keybuf, and shifting isn't really necessary
9209 Adding prefixes for non-textual mouse clicks
9210 creates two characters of mock input, and both
9211 must be thrown away. If we're only looking at
9212 the prefix now, we can just jump back to
9213 replay_key. On the other hand, if we've already
9214 processed the prefix, and now the actual click
9215 itself is giving us trouble, then we've lost the
9216 state of the keymaps we want to backtrack to, and
9217 we need to replay the whole sequence to rebuild
9220 Beyond that, only function key expansion could
9221 create more than two keys, but that should never
9222 generate mouse events, so it's okay to zero
9223 mock_input in that case too.
9225 FIXME: The above paragraph seems just plain
9226 wrong, if you consider things like
9227 xterm-mouse-mode. -stef
9229 Isn't this just the most wonderful code ever? */
9231 /* If mock_input > t + 1, the above simplification
9232 will actually end up dropping keys on the floor.
9233 This is probably OK for now, but even
9234 if mock_input <= t + 1, we need to adjust fkey
9236 Typical case [header-line down-mouse-N]:
9237 mock_input = 2, t = 1, fkey.end = 1,
9238 last_real_key_start = 0. */
9239 if (fkey
.end
> last_real_key_start
)
9241 fkey
.end
= fkey
.start
9242 = min (last_real_key_start
, fkey
.start
);
9243 fkey
.map
= fkey
.parent
;
9244 if (keytran
.end
> last_real_key_start
)
9246 keytran
.end
= keytran
.start
9247 = min (last_real_key_start
, keytran
.start
);
9248 keytran
.map
= keytran
.parent
;
9251 if (t
== last_real_key_start
)
9258 mock_input
= last_real_key_start
;
9259 goto replay_sequence
;
9264 = apply_modifiers (modifiers
, XCAR (breakdown
));
9266 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9268 /* Look for a binding for this new key. follow_key
9269 promises that it didn't munge submaps the
9270 last time we called it, since key was unbound. */
9272 = (follow_key (new_click
,
9273 nmaps
- local_first_binding
,
9274 submaps
+ local_first_binding
,
9275 defs
+ local_first_binding
,
9276 submaps
+ local_first_binding
)
9277 + local_first_binding
);
9279 /* If that click is bound, go for it. */
9280 if (first_binding
< nmaps
)
9285 /* Otherwise, we'll leave key set to the drag event. */
9292 /* Normally, last_nonmenu_event gets the previous key we read.
9293 But when a mouse popup menu is being used,
9294 we don't update last_nonmenu_event; it continues to hold the mouse
9295 event that preceded the first level of menu. */
9296 if (!used_mouse_menu
)
9297 last_nonmenu_event
= key
;
9299 /* Record what part of this_command_keys is the current key sequence. */
9300 this_single_command_key_start
= this_command_key_count
- t
;
9302 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9303 /* There is a binding and it's not a prefix.
9304 There is thus no function-key in this sequence.
9305 Moving fkey.start is important in this case to allow keytran.start
9306 to go over the sequence before we return (since we keep the
9307 invariant that keytran.end <= fkey.start). */
9310 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9313 /* If the sequence is unbound, see if we can hang a function key
9314 off the end of it. */
9315 /* Continue scan from fkey.end until we find a bound suffix. */
9316 while (fkey
.end
< t
)
9318 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9321 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9322 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9323 max (t
, mock_input
),
9324 /* If there's a binding (i.e.
9325 first_binding >= nmaps) we don't want
9326 to apply this function-key-mapping. */
9327 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9332 mock_input
= diff
+ max (t
, mock_input
);
9333 goto replay_sequence
;
9337 /* Look for this sequence in key-translation-map.
9338 Scan from keytran.end until we find a bound suffix. */
9339 while (keytran
.end
< fkey
.start
)
9341 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9344 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9345 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9350 mock_input
= diff
+ max (t
, mock_input
);
9351 /* Adjust the function-key-map counters. */
9355 goto replay_sequence
;
9359 /* If KEY is not defined in any of the keymaps,
9360 and cannot be part of a function key or translation,
9361 and is an upper case letter
9362 use the corresponding lower-case letter instead. */
9363 if (first_binding
>= nmaps
9364 && fkey
.start
>= t
&& keytran
.start
>= t
9366 && ((((XINT (key
) & 0x3ffff)
9367 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9368 && UPPERCASEP (XINT (key
) & 0x3ffff))
9369 || (XINT (key
) & shift_modifier
)))
9371 Lisp_Object new_key
;
9373 original_uppercase
= key
;
9374 original_uppercase_position
= t
- 1;
9376 if (XINT (key
) & shift_modifier
)
9377 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9379 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9380 | (XINT (key
) & ~0x3ffff)));
9382 /* We have to do this unconditionally, regardless of whether
9383 the lower-case char is defined in the keymaps, because they
9384 might get translated through function-key-map. */
9385 keybuf
[t
- 1] = new_key
;
9386 mock_input
= max (t
, mock_input
);
9388 goto replay_sequence
;
9390 /* If KEY is not defined in any of the keymaps,
9391 and cannot be part of a function key or translation,
9392 and is a shifted function key,
9393 use the corresponding unshifted function key instead. */
9394 if (first_binding
>= nmaps
9395 && fkey
.start
>= t
&& keytran
.start
>= t
9398 Lisp_Object breakdown
;
9401 breakdown
= parse_modifiers (key
);
9402 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9403 if (modifiers
& shift_modifier
)
9405 Lisp_Object new_key
;
9407 original_uppercase
= key
;
9408 original_uppercase_position
= t
- 1;
9410 modifiers
&= ~shift_modifier
;
9411 new_key
= apply_modifiers (modifiers
,
9414 keybuf
[t
- 1] = new_key
;
9415 mock_input
= max (t
, mock_input
);
9416 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9417 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9419 goto replay_sequence
;
9425 read_key_sequence_cmd
= (first_binding
< nmaps
9426 ? defs
[first_binding
]
9429 unread_switch_frame
= delayed_switch_frame
;
9430 unbind_to (count
, Qnil
);
9432 /* Don't downcase the last character if the caller says don't.
9433 Don't downcase it if the result is undefined, either. */
9434 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9435 && t
- 1 == original_uppercase_position
)
9436 keybuf
[t
- 1] = original_uppercase
;
9438 /* Occasionally we fabricate events, perhaps by expanding something
9439 according to function-key-map, or by adding a prefix symbol to a
9440 mouse click in the scroll bar or modeline. In this cases, return
9441 the entire generated key sequence, even if we hit an unbound
9442 prefix or a definition before the end. This means that you will
9443 be able to push back the event properly, and also means that
9444 read-key-sequence will always return a logical unit.
9447 for (; t
< mock_input
; t
++)
9449 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9450 && NILP (Fzerop (Vecho_keystrokes
)))
9451 echo_char (keybuf
[t
]);
9452 add_command_key (keybuf
[t
]);
9461 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9462 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9463 The sequence is sufficient to specify a non-prefix command in the
9464 current local and global maps.
9466 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9467 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9468 as a continuation of the previous key.
9470 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9471 convert the last event to lower case. (Normally any upper case event
9472 is converted to lower case if the original event is undefined and the lower
9473 case equivalent is defined.) A non-nil value is appropriate for reading
9474 a key sequence to be defined.
9476 A C-g typed while in this function is treated like any other character,
9477 and `quit-flag' is not set.
9479 If the key sequence starts with a mouse click, then the sequence is read
9480 using the keymaps of the buffer of the window clicked in, not the buffer
9481 of the selected window as normal.
9483 `read-key-sequence' drops unbound button-down events, since you normally
9484 only care about the click or drag events which follow them. If a drag
9485 or multi-click event is unbound, but the corresponding click event would
9486 be bound, `read-key-sequence' turns the event into a click event at the
9487 drag's starting position. This means that you don't have to distinguish
9488 between click and drag, double, or triple events unless you want to.
9490 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9491 lines separating windows, and scroll bars with imaginary keys
9492 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9494 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9495 function will process a switch-frame event if the user switches frames
9496 before typing anything. If the user switches frames in the middle of a
9497 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9498 is nil, then the event will be put off until after the current key sequence.
9500 `read-key-sequence' checks `function-key-map' for function key
9501 sequences, where they wouldn't conflict with ordinary bindings. See
9502 `function-key-map' for more details.
9504 The optional fifth argument COMMAND-LOOP, if non-nil, means
9505 that this key sequence is being read by something that will
9506 read commands one after another. It should be nil if the caller
9507 will read just one key sequence. */)
9508 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9510 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9511 Lisp_Object can_return_switch_frame
, command_loop
;
9513 Lisp_Object keybuf
[30];
9515 struct gcpro gcpro1
;
9516 int count
= SPECPDL_INDEX ();
9519 CHECK_STRING (prompt
);
9522 specbind (Qinput_method_exit_on_first_char
,
9523 (NILP (command_loop
) ? Qt
: Qnil
));
9524 specbind (Qinput_method_use_echo_area
,
9525 (NILP (command_loop
) ? Qt
: Qnil
));
9527 bzero (keybuf
, sizeof keybuf
);
9529 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9531 if (NILP (continue_echo
))
9533 this_command_key_count
= 0;
9534 this_command_key_count_reset
= 0;
9535 this_single_command_key_start
= 0;
9538 #ifdef HAVE_X_WINDOWS
9539 if (display_hourglass_p
)
9540 cancel_hourglass ();
9543 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9544 prompt
, ! NILP (dont_downcase_last
),
9545 ! NILP (can_return_switch_frame
), 0);
9547 #if 0 /* The following is fine for code reading a key sequence and
9548 then proceeding with a lenghty computation, but it's not good
9549 for code reading keys in a loop, like an input method. */
9550 #ifdef HAVE_X_WINDOWS
9551 if (display_hourglass_p
)
9562 return unbind_to (count
, make_event_array (i
, keybuf
));
9565 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9566 Sread_key_sequence_vector
, 1, 5, 0,
9567 doc
: /* Like `read-key-sequence' but always return a vector. */)
9568 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9570 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9571 Lisp_Object can_return_switch_frame
, command_loop
;
9573 Lisp_Object keybuf
[30];
9575 struct gcpro gcpro1
;
9576 int count
= SPECPDL_INDEX ();
9579 CHECK_STRING (prompt
);
9582 specbind (Qinput_method_exit_on_first_char
,
9583 (NILP (command_loop
) ? Qt
: Qnil
));
9584 specbind (Qinput_method_use_echo_area
,
9585 (NILP (command_loop
) ? Qt
: Qnil
));
9587 bzero (keybuf
, sizeof keybuf
);
9589 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9591 if (NILP (continue_echo
))
9593 this_command_key_count
= 0;
9594 this_command_key_count_reset
= 0;
9595 this_single_command_key_start
= 0;
9598 #ifdef HAVE_X_WINDOWS
9599 if (display_hourglass_p
)
9600 cancel_hourglass ();
9603 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9604 prompt
, ! NILP (dont_downcase_last
),
9605 ! NILP (can_return_switch_frame
), 0);
9607 #ifdef HAVE_X_WINDOWS
9608 if (display_hourglass_p
)
9618 return unbind_to (count
, Fvector (i
, keybuf
));
9621 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9622 doc
: /* Execute CMD as an editor command.
9623 CMD must be a symbol that satisfies the `commandp' predicate.
9624 Optional second arg RECORD-FLAG non-nil
9625 means unconditionally put this command in `command-history'.
9626 Otherwise, that is done only if an arg is read using the minibuffer.
9627 The argument KEYS specifies the value to use instead of (this-command-keys)
9628 when reading the arguments; if it is nil, (this-command-keys) is used.
9629 The argument SPECIAL, if non-nil, means that this command is executing
9630 a special event, so ignore the prefix argument and don't clear it. */)
9631 (cmd
, record_flag
, keys
, special
)
9632 Lisp_Object cmd
, record_flag
, keys
, special
;
9634 register Lisp_Object final
;
9635 register Lisp_Object tem
;
9636 Lisp_Object prefixarg
;
9637 struct backtrace backtrace
;
9638 extern int debug_on_next_call
;
9640 debug_on_next_call
= 0;
9644 prefixarg
= current_kboard
->Vprefix_arg
;
9645 Vcurrent_prefix_arg
= prefixarg
;
9646 current_kboard
->Vprefix_arg
= Qnil
;
9653 tem
= Fget (cmd
, Qdisabled
);
9654 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9656 tem
= Fsymbol_value (Qdisabled_command_function
);
9658 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9664 final
= Findirect_function (cmd
);
9666 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9668 struct gcpro gcpro1
, gcpro2
;
9670 GCPRO2 (cmd
, prefixarg
);
9671 do_autoload (final
, cmd
);
9678 if (STRINGP (final
) || VECTORP (final
))
9680 /* If requested, place the macro in the command history. For
9681 other sorts of commands, call-interactively takes care of
9683 if (!NILP (record_flag
))
9686 = Fcons (Fcons (Qexecute_kbd_macro
,
9687 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9690 /* Don't keep command history around forever. */
9691 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9693 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9695 XSETCDR (tem
, Qnil
);
9699 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9702 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9704 backtrace
.next
= backtrace_list
;
9705 backtrace_list
= &backtrace
;
9706 backtrace
.function
= &Qcall_interactively
;
9707 backtrace
.args
= &cmd
;
9708 backtrace
.nargs
= 1;
9709 backtrace
.evalargs
= 0;
9710 backtrace
.debug_on_exit
= 0;
9712 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9714 backtrace_list
= backtrace
.next
;
9722 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9724 doc
: /* Read function name, then read its arguments and call it. */)
9726 Lisp_Object prefixarg
;
9728 Lisp_Object function
;
9730 int saved_last_point_position
;
9731 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9732 Lisp_Object bindings
, value
;
9733 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9734 #ifdef HAVE_X_WINDOWS
9735 /* The call to Fcompleting_read wil start and cancel the hourglass,
9736 but if the hourglass was already scheduled, this means that no
9737 hourglass will be shown for the actual M-x command itself.
9738 So we restart it if it is already scheduled. Note that checking
9739 hourglass_shown_p is not enough, normally the hourglass is not shown,
9740 just scheduled to be shown. */
9741 int hstarted
= hourglass_started ();
9744 saved_keys
= Fvector (this_command_key_count
,
9745 XVECTOR (this_command_keys
)->contents
);
9746 saved_last_point_position_buffer
= last_point_position_buffer
;
9747 saved_last_point_position
= last_point_position
;
9749 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9751 if (EQ (prefixarg
, Qminus
))
9753 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9754 strcpy (buf
, "C-u ");
9755 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9756 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9757 else if (INTEGERP (prefixarg
))
9758 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9760 /* This isn't strictly correct if execute-extended-command
9761 is bound to anything else. Perhaps it should use
9762 this_command_keys? */
9763 strcat (buf
, "M-x ");
9765 /* Prompt with buf, and then read a string, completing from and
9766 restricting to the set of all defined commands. Don't provide
9767 any initial input. Save the command read on the extended-command
9769 function
= Fcompleting_read (build_string (buf
),
9770 Vobarray
, Qcommandp
,
9771 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9774 #ifdef HAVE_X_WINDOWS
9775 if (hstarted
) start_hourglass ();
9778 if (STRINGP (function
) && SCHARS (function
) == 0)
9779 error ("No command name given");
9781 /* Set this_command_keys to the concatenation of saved_keys and
9782 function, followed by a RET. */
9787 this_command_key_count
= 0;
9788 this_command_key_count_reset
= 0;
9789 this_single_command_key_start
= 0;
9791 keys
= XVECTOR (saved_keys
)->contents
;
9792 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9793 add_command_key (keys
[i
]);
9795 for (i
= 0; i
< SCHARS (function
); i
++)
9796 add_command_key (Faref (function
, make_number (i
)));
9798 add_command_key (make_number ('\015'));
9801 last_point_position
= saved_last_point_position
;
9802 last_point_position_buffer
= saved_last_point_position_buffer
;
9806 function
= Fintern (function
, Qnil
);
9807 current_kboard
->Vprefix_arg
= prefixarg
;
9808 Vthis_command
= function
;
9809 real_this_command
= function
;
9811 /* If enabled, show which key runs this command. */
9812 if (!NILP (Vsuggest_key_bindings
)
9813 && NILP (Vexecuting_kbd_macro
)
9814 && SYMBOLP (function
))
9815 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9821 GCPRO2 (bindings
, value
);
9822 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9824 /* If the command has a key binding, print it now. */
9825 if (!NILP (bindings
)
9826 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9829 /* But first wait, and skip the message if there is input. */
9831 if (!NILP (echo_area_buffer
[0]))
9832 /* This command displayed something in the echo area;
9833 so wait a few seconds, then display our suggestion message. */
9834 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9835 ? XINT (Vsuggest_key_bindings
) : 2);
9837 /* This command left the echo area empty,
9838 so display our message immediately. */
9841 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9842 && ! CONSP (Vunread_command_events
))
9844 Lisp_Object binding
;
9846 int message_p
= push_message ();
9847 int count
= SPECPDL_INDEX ();
9849 record_unwind_protect (pop_message_unwind
, Qnil
);
9850 binding
= Fkey_description (bindings
, Qnil
);
9853 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9856 sprintf (newmessage
, "You can run the command `%s' with %s",
9857 SDATA (SYMBOL_NAME (function
)),
9859 message2_nolog (newmessage
,
9860 strlen (newmessage
),
9861 STRING_MULTIBYTE (binding
));
9862 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9863 ? Vsuggest_key_bindings
: make_number (2)),
9868 unbind_to (count
, Qnil
);
9872 RETURN_UNGCPRO (value
);
9876 /* Return nonzero if input events are pending. */
9879 detect_input_pending ()
9882 get_input_pending (&input_pending
, 0);
9884 return input_pending
;
9887 /* Return nonzero if input events other than mouse movements are
9891 detect_input_pending_ignore_squeezables ()
9894 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9896 return input_pending
;
9899 /* Return nonzero if input events are pending, and run any pending timers. */
9902 detect_input_pending_run_timers (do_display
)
9905 int old_timers_run
= timers_run
;
9908 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9910 if (old_timers_run
!= timers_run
&& do_display
)
9912 redisplay_preserve_echo_area (8);
9913 /* The following fixes a bug when using lazy-lock with
9914 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9915 from an idle timer function. The symptom of the bug is that
9916 the cursor sometimes doesn't become visible until the next X
9917 event is processed. --gerd. */
9919 rif
->flush_display (NULL
);
9922 return input_pending
;
9925 /* This is called in some cases before a possible quit.
9926 It cases the next call to detect_input_pending to recompute input_pending.
9927 So calling this function unnecessarily can't do any harm. */
9930 clear_input_pending ()
9935 /* Return nonzero if there are pending requeued events.
9936 This isn't used yet. The hope is to make wait_reading_process_output
9937 call it, and return if it runs Lisp code that unreads something.
9938 The problem is, kbd_buffer_get_event needs to be fixed to know what
9939 to do in that case. It isn't trivial. */
9942 requeued_events_pending_p ()
9944 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9948 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9949 doc
: /* Return t if command input is currently available with no wait.
9950 Actually, the value is nil only if we can be sure that no input is available;
9951 if there is a doubt, the value is t. */)
9954 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9957 get_input_pending (&input_pending
,
9958 READABLE_EVENTS_DO_TIMERS_NOW
9959 | READABLE_EVENTS_FILTER_EVENTS
);
9960 return input_pending
> 0 ? Qt
: Qnil
;
9963 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
9964 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
9967 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
9970 if (total_keys
< NUM_RECENT_KEYS
)
9971 return Fvector (total_keys
, keys
);
9974 val
= Fvector (NUM_RECENT_KEYS
, keys
);
9975 bcopy (keys
+ recent_keys_index
,
9976 XVECTOR (val
)->contents
,
9977 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
9979 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
9980 recent_keys_index
* sizeof (Lisp_Object
));
9985 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
9986 doc
: /* Return the key sequence that invoked this command.
9987 However, if the command has called `read-key-sequence', it returns
9988 the last key sequence that has been read.
9989 The value is a string or a vector. */)
9992 return make_event_array (this_command_key_count
,
9993 XVECTOR (this_command_keys
)->contents
);
9996 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
9997 doc
: /* Return the key sequence that invoked this command, as a vector.
9998 However, if the command has called `read-key-sequence', it returns
9999 the last key sequence that has been read. */)
10002 return Fvector (this_command_key_count
,
10003 XVECTOR (this_command_keys
)->contents
);
10006 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10007 Sthis_single_command_keys
, 0, 0, 0,
10008 doc
: /* Return the key sequence that invoked this command.
10009 More generally, it returns the last key sequence read, either by
10010 the command loop or by `read-key-sequence'.
10011 Unlike `this-command-keys', this function's value
10012 does not include prefix arguments.
10013 The value is always a vector. */)
10016 return Fvector (this_command_key_count
10017 - this_single_command_key_start
,
10018 (XVECTOR (this_command_keys
)->contents
10019 + this_single_command_key_start
));
10022 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10023 Sthis_single_command_raw_keys
, 0, 0, 0,
10024 doc
: /* Return the raw events that were read for this command.
10025 More generally, it returns the last key sequence read, either by
10026 the command loop or by `read-key-sequence'.
10027 Unlike `this-single-command-keys', this function's value
10028 shows the events before all translations (except for input methods).
10029 The value is always a vector. */)
10032 return Fvector (raw_keybuf_count
,
10033 (XVECTOR (raw_keybuf
)->contents
));
10036 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10037 Sreset_this_command_lengths
, 0, 0, 0,
10038 doc
: /* Make the unread events replace the last command and echo.
10039 Used in `universal-argument-other-key'.
10041 `universal-argument-other-key' rereads the event just typed.
10042 It then gets translated through `function-key-map'.
10043 The translated event has to replace the real events,
10044 both in the value of (this-command-keys) and in echoing.
10045 To achieve this, `universal-argument-other-key' calls
10046 `reset-this-command-lengths', which discards the record of reading
10047 these events the first time. */)
10050 this_command_key_count
= before_command_key_count
;
10051 if (this_command_key_count
< this_single_command_key_start
)
10052 this_single_command_key_start
= this_command_key_count
;
10054 echo_truncate (before_command_echo_length
);
10056 /* Cause whatever we put into unread-command-events
10057 to echo as if it were being freshly read from the keyboard. */
10058 this_command_key_count_reset
= 1;
10063 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10064 Sclear_this_command_keys
, 0, 1, 0,
10065 doc
: /* Clear out the vector that `this-command-keys' returns.
10066 Also clear the record of the last 100 events, unless optional arg
10067 KEEP-RECORD is non-nil. */)
10069 Lisp_Object keep_record
;
10073 this_command_key_count
= 0;
10074 this_command_key_count_reset
= 0;
10076 if (NILP (keep_record
))
10078 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10079 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10081 recent_keys_index
= 0;
10086 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10087 doc
: /* Return the current depth in recursive edits. */)
10091 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10095 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10096 "FOpen dribble file: ",
10097 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10098 If FILE is nil, close any open dribble file. */)
10109 file
= Fexpand_file_name (file
, Qnil
);
10110 dribble
= fopen (SDATA (file
), "w");
10112 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10117 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10118 doc
: /* Discard the contents of the terminal input buffer.
10119 Also end any kbd macro being defined. */)
10122 if (!NILP (current_kboard
->defining_kbd_macro
))
10124 /* Discard the last command from the macro. */
10125 Fcancel_kbd_macro_events ();
10129 update_mode_lines
++;
10131 Vunread_command_events
= Qnil
;
10132 unread_command_char
= -1;
10134 discard_tty_input ();
10136 kbd_fetch_ptr
= kbd_store_ptr
;
10142 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10143 doc
: /* Stop Emacs and return to superior process. You can resume later.
10144 If `cannot-suspend' is non-nil, or if the system doesn't support job
10145 control, run a subshell instead.
10147 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10148 to be read as terminal input by Emacs's parent, after suspension.
10150 Before suspending, run the normal hook `suspend-hook'.
10151 After resumption run the normal hook `suspend-resume-hook'.
10153 Some operating systems cannot stop the Emacs process and resume it later.
10154 On such systems, Emacs starts a subshell instead of suspending. */)
10156 Lisp_Object stuffstring
;
10158 int count
= SPECPDL_INDEX ();
10159 int old_height
, old_width
;
10161 struct gcpro gcpro1
;
10163 if (!NILP (stuffstring
))
10164 CHECK_STRING (stuffstring
);
10166 /* Run the functions in suspend-hook. */
10167 if (!NILP (Vrun_hooks
))
10168 call1 (Vrun_hooks
, intern ("suspend-hook"));
10170 GCPRO1 (stuffstring
);
10171 get_frame_size (&old_width
, &old_height
);
10172 reset_sys_modes ();
10173 /* sys_suspend can get an error if it tries to fork a subshell
10174 and the system resources aren't available for that. */
10175 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_sys_modes
,
10177 stuff_buffered_input (stuffstring
);
10178 if (cannot_suspend
)
10182 unbind_to (count
, Qnil
);
10184 /* Check if terminal/window size has changed.
10185 Note that this is not useful when we are running directly
10186 with a window system; but suspend should be disabled in that case. */
10187 get_frame_size (&width
, &height
);
10188 if (width
!= old_width
|| height
!= old_height
)
10189 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10191 /* Run suspend-resume-hook. */
10192 if (!NILP (Vrun_hooks
))
10193 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10199 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10200 Then in any case stuff anything Emacs has read ahead and not used. */
10203 stuff_buffered_input (stuffstring
)
10204 Lisp_Object stuffstring
;
10206 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10207 register unsigned char *p
;
10209 if (STRINGP (stuffstring
))
10211 register int count
;
10213 p
= SDATA (stuffstring
);
10214 count
= SBYTES (stuffstring
);
10215 while (count
-- > 0)
10220 /* Anything we have read ahead, put back for the shell to read. */
10221 /* ?? What should this do when we have multiple keyboards??
10222 Should we ignore anything that was typed in at the "wrong" kboard?
10224 rms: we should stuff everything back into the kboard
10226 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10229 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10230 kbd_fetch_ptr
= kbd_buffer
;
10231 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10232 stuff_char (kbd_fetch_ptr
->code
);
10234 clear_event (kbd_fetch_ptr
);
10238 #endif /* SIGTSTP */
10242 set_waiting_for_input (time_to_clear
)
10243 EMACS_TIME
*time_to_clear
;
10245 input_available_clear_time
= time_to_clear
;
10247 /* Tell interrupt_signal to throw back to read_char, */
10248 waiting_for_input
= 1;
10250 /* If interrupt_signal was called before and buffered a C-g,
10251 make it run again now, to avoid timing error. */
10252 if (!NILP (Vquit_flag
))
10253 quit_throw_to_read_char ();
10257 clear_waiting_for_input ()
10259 /* Tell interrupt_signal not to throw back to read_char, */
10260 waiting_for_input
= 0;
10261 input_available_clear_time
= 0;
10264 /* This routine is called at interrupt level in response to C-g.
10266 If interrupt_input, this is the handler for SIGINT. Otherwise, it
10267 is called from kbd_buffer_store_event, in handling SIGIO or
10270 If `waiting_for_input' is non zero, then unless `echoing' is
10271 nonzero, immediately throw back to read_char.
10273 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10274 eval to throw, when it gets a chance. If quit-flag is already
10275 non-nil, it stops the job right away. */
10278 interrupt_signal (signalnum
) /* If we don't have an argument, */
10279 int signalnum
; /* some compilers complain in signal calls. */
10282 /* Must preserve main program's value of errno. */
10283 int old_errno
= errno
;
10284 struct frame
*sf
= SELECTED_FRAME ();
10286 #if defined (USG) && !defined (POSIX_SIGNALS)
10287 if (!read_socket_hook
&& NILP (Vwindow_system
))
10289 /* USG systems forget handlers when they are used;
10290 must reestablish each time */
10291 signal (SIGINT
, interrupt_signal
);
10292 signal (SIGQUIT
, interrupt_signal
);
10296 SIGNAL_THREAD_CHECK (signalnum
);
10299 if (!NILP (Vquit_flag
)
10300 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10302 /* If SIGINT isn't blocked, don't let us be interrupted by
10303 another SIGINT, it might be harmful due to non-reentrancy
10304 in I/O functions. */
10305 sigblock (sigmask (SIGINT
));
10308 reset_sys_modes ();
10310 #ifdef SIGTSTP /* Support possible in later USG versions */
10312 * On systems which can suspend the current process and return to the original
10313 * shell, this command causes the user to end up back at the shell.
10314 * The "Auto-save" and "Abort" questions are not asked until
10315 * the user elects to return to emacs, at which point he can save the current
10316 * job and either dump core or continue.
10321 if (sys_suspend () == -1)
10323 printf ("Not running as a subprocess;\n");
10324 printf ("you can continue or abort.\n");
10326 #else /* not VMS */
10327 /* Perhaps should really fork an inferior shell?
10328 But that would not provide any way to get back
10329 to the original shell, ever. */
10330 printf ("No support for stopping a process on this operating system;\n");
10331 printf ("you can continue or abort.\n");
10332 #endif /* not VMS */
10333 #endif /* not SIGTSTP */
10335 /* We must remain inside the screen area when the internal terminal
10336 is used. Note that [Enter] is not echoed by dos. */
10339 /* It doesn't work to autosave while GC is in progress;
10340 the code used for auto-saving doesn't cope with the mark bit. */
10341 if (!gc_in_progress
)
10343 printf ("Auto-save? (y or n) ");
10345 if (((c
= getchar ()) & ~040) == 'Y')
10347 Fdo_auto_save (Qt
, Qnil
);
10349 printf ("\r\nAuto-save done");
10350 #else /* not MSDOS */
10351 printf ("Auto-save done\n");
10352 #endif /* not MSDOS */
10354 while (c
!= '\n') c
= getchar ();
10358 /* During GC, it must be safe to reenable quitting again. */
10359 Vinhibit_quit
= Qnil
;
10362 #endif /* not MSDOS */
10363 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10364 printf ("but will instead do a real quit after garbage collection ends\r\n");
10369 printf ("\r\nAbort? (y or n) ");
10370 #else /* not MSDOS */
10372 printf ("Abort (and enter debugger)? (y or n) ");
10373 #else /* not VMS */
10374 printf ("Abort (and dump core)? (y or n) ");
10375 #endif /* not VMS */
10376 #endif /* not MSDOS */
10378 if (((c
= getchar ()) & ~040) == 'Y')
10380 while (c
!= '\n') c
= getchar ();
10382 printf ("\r\nContinuing...\r\n");
10383 #else /* not MSDOS */
10384 printf ("Continuing...\n");
10385 #endif /* not MSDOS */
10392 /* If executing a function that wants to be interrupted out of
10393 and the user has not deferred quitting by binding `inhibit-quit'
10394 then quit right away. */
10395 if (immediate_quit
&& NILP (Vinhibit_quit
))
10397 struct gl_state_s saved
;
10398 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10400 immediate_quit
= 0;
10403 GCPRO4 (saved
.object
, saved
.global_code
,
10404 saved
.current_syntax_table
, saved
.old_prop
);
10405 Fsignal (Qquit
, Qnil
);
10410 /* Else request quit when it's safe */
10414 if (waiting_for_input
&& !echoing
)
10415 quit_throw_to_read_char ();
10420 /* Handle a C-g by making read_char return C-g. */
10423 quit_throw_to_read_char ()
10426 /* Prevent another signal from doing this before we finish. */
10427 clear_waiting_for_input ();
10430 Vunread_command_events
= Qnil
;
10431 unread_command_char
= -1;
10433 #if 0 /* Currently, sit_for is called from read_char without turning
10434 off polling. And that can call set_waiting_for_input.
10435 It seems to be harmless. */
10436 #ifdef POLL_FOR_INPUT
10437 /* May be > 1 if in recursive minibuffer. */
10438 if (poll_suppress_count
== 0)
10442 if (FRAMEP (internal_last_event_frame
)
10443 && !EQ (internal_last_event_frame
, selected_frame
))
10444 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10447 _longjmp (getcjmp
, 1);
10450 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10451 doc
: /* Set mode of reading keyboard input.
10452 First arg INTERRUPT non-nil means use input interrupts;
10453 nil means use CBREAK mode.
10454 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10455 (no effect except in CBREAK mode).
10456 Third arg META t means accept 8-bit input (for a Meta key).
10457 META nil means ignore the top bit, on the assumption it is parity.
10458 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10459 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10460 See also `current-input-mode'. */)
10461 (interrupt
, flow
, meta
, quit
)
10462 Lisp_Object interrupt
, flow
, meta
, quit
;
10465 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10466 error ("set-input-mode: QUIT must be an ASCII character");
10468 #ifdef POLL_FOR_INPUT
10473 /* this causes startup screen to be restored and messes with the mouse */
10474 reset_sys_modes ();
10478 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10479 if (read_socket_hook
)
10481 /* When using X, don't give the user a real choice,
10482 because we haven't implemented the mechanisms to support it. */
10483 #ifdef NO_SOCK_SIGIO
10484 interrupt_input
= 0;
10485 #else /* not NO_SOCK_SIGIO */
10486 interrupt_input
= 1;
10487 #endif /* NO_SOCK_SIGIO */
10490 interrupt_input
= !NILP (interrupt
);
10491 #else /* not SIGIO */
10492 interrupt_input
= 0;
10493 #endif /* not SIGIO */
10495 /* Our VMS input only works by interrupts, as of now. */
10497 interrupt_input
= 1;
10500 flow_control
= !NILP (flow
);
10503 else if (EQ (meta
, Qt
))
10508 /* Don't let this value be out of range. */
10509 quit_char
= XINT (quit
) & (meta_key
? 0377 : 0177);
10515 #ifdef POLL_FOR_INPUT
10516 poll_suppress_count
= 1;
10522 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10523 doc
: /* Return information about the way Emacs currently reads keyboard input.
10524 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10525 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10526 nil, Emacs is using CBREAK mode.
10527 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10528 terminal; this does not apply if Emacs uses interrupt-driven input.
10529 META is t if accepting 8-bit input with 8th bit as Meta flag.
10530 META nil means ignoring the top bit, on the assumption it is parity.
10531 META is neither t nor nil if accepting 8-bit input and using
10532 all 8 bits as the character code.
10533 QUIT is the character Emacs currently uses to quit.
10534 The elements of this list correspond to the arguments of
10535 `set-input-mode'. */)
10538 Lisp_Object val
[4];
10540 val
[0] = interrupt_input
? Qt
: Qnil
;
10541 val
[1] = flow_control
? Qt
: Qnil
;
10542 val
[2] = meta_key
== 2 ? make_number (0) : meta_key
== 1 ? Qt
: Qnil
;
10543 XSETFASTINT (val
[3], quit_char
);
10545 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10548 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10549 doc
: /* Return position information for pixel coordinates X and Y.
10550 By default, X and Y are relative to text area of the selected window.
10551 Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
10552 If optional fourth arg WHOLE is non-nil, X is relative to the left
10553 edge of the window.
10555 The return value is similar to a mouse click position:
10556 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10557 IMAGE (DX . DY) (WIDTH . HEIGHT))
10558 The `posn-' functions access elements of such lists. */)
10559 (x
, y
, frame_or_window
, whole
)
10560 Lisp_Object x
, y
, frame_or_window
, whole
;
10565 if (NILP (frame_or_window
))
10566 frame_or_window
= selected_window
;
10568 if (WINDOWP (frame_or_window
))
10572 CHECK_LIVE_WINDOW (frame_or_window
);
10574 w
= XWINDOW (frame_or_window
);
10575 XSETINT (x
, (WINDOW_TO_FRAME_PIXEL_X (w
, XINT (x
))
10577 ? window_box_left_offset (w
, TEXT_AREA
)
10578 : - (WINDOW_LEFT_SCROLL_BAR_COLS (w
)
10579 * WINDOW_FRAME_COLUMN_WIDTH (w
)))));
10580 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10581 frame_or_window
= w
->frame
;
10584 CHECK_LIVE_FRAME (frame_or_window
);
10586 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10589 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10590 doc
: /* Return position information for buffer POS in WINDOW.
10591 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10593 Return nil if position is not visible in window. Otherwise,
10594 the return value is similar to that returned by `event-start' for
10595 a mouse click at the upper left corner of the glyph corresponding
10596 to the given buffer position:
10597 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10598 IMAGE (DX . DY) (WIDTH . HEIGHT))
10599 The `posn-' functions access elements of such lists. */)
10601 Lisp_Object pos
, window
;
10605 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10607 tem
= Fposn_at_x_y (XCAR (tem
), XCAR (XCDR (tem
)), window
, Qnil
);
10613 * Set up a new kboard object with reasonable initial values.
10619 kb
->Voverriding_terminal_local_map
= Qnil
;
10620 kb
->Vlast_command
= Qnil
;
10621 kb
->Vreal_last_command
= Qnil
;
10622 kb
->Vprefix_arg
= Qnil
;
10623 kb
->Vlast_prefix_arg
= Qnil
;
10624 kb
->kbd_queue
= Qnil
;
10625 kb
->kbd_queue_has_data
= 0;
10626 kb
->immediate_echo
= 0;
10627 kb
->echo_string
= Qnil
;
10628 kb
->echo_after_prompt
= -1;
10629 kb
->kbd_macro_buffer
= 0;
10630 kb
->kbd_macro_bufsize
= 0;
10631 kb
->defining_kbd_macro
= Qnil
;
10632 kb
->Vlast_kbd_macro
= Qnil
;
10633 kb
->reference_count
= 0;
10634 kb
->Vsystem_key_alist
= Qnil
;
10635 kb
->system_key_syms
= Qnil
;
10636 kb
->Vdefault_minibuffer_frame
= Qnil
;
10640 * Destroy the contents of a kboard object, but not the object itself.
10641 * We use this just before deleting it, or if we're going to initialize
10642 * it a second time.
10648 if (kb
->kbd_macro_buffer
)
10649 xfree (kb
->kbd_macro_buffer
);
10652 #ifdef MULTI_KBOARD
10654 /* Free KB and memory referenced from it. */
10662 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10665 *kbp
= kb
->next_kboard
;
10667 /* Prevent a dangling reference to KB. */
10668 if (kb
== current_kboard
10669 && FRAMEP (selected_frame
)
10670 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10672 current_kboard
= XFRAME (selected_frame
)->kboard
;
10673 if (current_kboard
== kb
)
10681 #endif /* MULTI_KBOARD */
10686 /* This is correct before outermost invocation of the editor loop */
10687 command_loop_level
= -1;
10688 immediate_quit
= 0;
10689 quit_char
= Ctl ('g');
10690 Vunread_command_events
= Qnil
;
10691 unread_command_char
= -1;
10692 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10694 recent_keys_index
= 0;
10695 kbd_fetch_ptr
= kbd_buffer
;
10696 kbd_store_ptr
= kbd_buffer
;
10698 do_mouse_tracking
= Qnil
;
10702 /* This means that command_loop_1 won't try to select anything the first
10704 internal_last_event_frame
= Qnil
;
10705 Vlast_event_frame
= internal_last_event_frame
;
10707 #ifdef MULTI_KBOARD
10708 current_kboard
= initial_kboard
;
10710 wipe_kboard (current_kboard
);
10711 init_kboard (current_kboard
);
10713 if (!noninteractive
&& !read_socket_hook
&& NILP (Vwindow_system
))
10715 signal (SIGINT
, interrupt_signal
);
10716 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10717 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10718 SIGQUIT and we can't tell which one it will give us. */
10719 signal (SIGQUIT
, interrupt_signal
);
10720 #endif /* HAVE_TERMIO */
10722 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10724 if (!noninteractive
)
10725 signal (SIGIO
, input_available_signal
);
10728 /* Use interrupt input by default, if it works and noninterrupt input
10729 has deficiencies. */
10731 #ifdef INTERRUPT_INPUT
10732 interrupt_input
= 1;
10734 interrupt_input
= 0;
10737 /* Our VMS input only works by interrupts, as of now. */
10739 interrupt_input
= 1;
10745 if (keyboard_init_hook
)
10746 (*keyboard_init_hook
) ();
10748 #ifdef POLL_FOR_INPUT
10749 poll_suppress_count
= 1;
10754 /* At least provide an escape route since C-g doesn't work. */
10755 signal (SIGINT
, interrupt_signal
);
10759 /* This type's only use is in syms_of_keyboard, to initialize the
10760 event header symbols and put properties on them. */
10761 struct event_head
{
10767 struct event_head head_table
[] = {
10768 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10769 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10770 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10771 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10772 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10773 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10774 /* `select-window' should be handled just like `switch-frame'
10775 in read_key_sequence. */
10776 {&Qselect_window
, "select-window", &Qswitch_frame
}
10780 syms_of_keyboard ()
10782 Vpre_help_message
= Qnil
;
10783 staticpro (&Vpre_help_message
);
10785 Vlispy_mouse_stem
= build_string ("mouse");
10786 staticpro (&Vlispy_mouse_stem
);
10789 QCimage
= intern (":image");
10790 staticpro (&QCimage
);
10792 staticpro (&Qhelp_echo
);
10793 Qhelp_echo
= intern ("help-echo");
10795 staticpro (&item_properties
);
10796 item_properties
= Qnil
;
10798 staticpro (&tool_bar_item_properties
);
10799 tool_bar_item_properties
= Qnil
;
10800 staticpro (&tool_bar_items_vector
);
10801 tool_bar_items_vector
= Qnil
;
10803 staticpro (&real_this_command
);
10804 real_this_command
= Qnil
;
10806 Qtimer_event_handler
= intern ("timer-event-handler");
10807 staticpro (&Qtimer_event_handler
);
10809 Qdisabled_command_function
= intern ("disabled-command-function");
10810 staticpro (&Qdisabled_command_function
);
10812 Qself_insert_command
= intern ("self-insert-command");
10813 staticpro (&Qself_insert_command
);
10815 Qforward_char
= intern ("forward-char");
10816 staticpro (&Qforward_char
);
10818 Qbackward_char
= intern ("backward-char");
10819 staticpro (&Qbackward_char
);
10821 Qdisabled
= intern ("disabled");
10822 staticpro (&Qdisabled
);
10824 Qundefined
= intern ("undefined");
10825 staticpro (&Qundefined
);
10827 Qpre_command_hook
= intern ("pre-command-hook");
10828 staticpro (&Qpre_command_hook
);
10830 Qpost_command_hook
= intern ("post-command-hook");
10831 staticpro (&Qpost_command_hook
);
10833 Qdeferred_action_function
= intern ("deferred-action-function");
10834 staticpro (&Qdeferred_action_function
);
10836 Qcommand_hook_internal
= intern ("command-hook-internal");
10837 staticpro (&Qcommand_hook_internal
);
10839 Qfunction_key
= intern ("function-key");
10840 staticpro (&Qfunction_key
);
10841 Qmouse_click
= intern ("mouse-click");
10842 staticpro (&Qmouse_click
);
10843 #if defined (WINDOWSNT) || defined (MAC_OS)
10844 Qlanguage_change
= intern ("language-change");
10845 staticpro (&Qlanguage_change
);
10847 Qdrag_n_drop
= intern ("drag-n-drop");
10848 staticpro (&Qdrag_n_drop
);
10850 Qsave_session
= intern ("save-session");
10851 staticpro (&Qsave_session
);
10853 Qusr1_signal
= intern ("usr1-signal");
10854 staticpro (&Qusr1_signal
);
10855 Qusr2_signal
= intern ("usr2-signal");
10856 staticpro (&Qusr2_signal
);
10858 Qmenu_enable
= intern ("menu-enable");
10859 staticpro (&Qmenu_enable
);
10860 Qmenu_alias
= intern ("menu-alias");
10861 staticpro (&Qmenu_alias
);
10862 QCenable
= intern (":enable");
10863 staticpro (&QCenable
);
10864 QCvisible
= intern (":visible");
10865 staticpro (&QCvisible
);
10866 QChelp
= intern (":help");
10867 staticpro (&QChelp
);
10868 QCfilter
= intern (":filter");
10869 staticpro (&QCfilter
);
10870 QCbutton
= intern (":button");
10871 staticpro (&QCbutton
);
10872 QCkeys
= intern (":keys");
10873 staticpro (&QCkeys
);
10874 QCkey_sequence
= intern (":key-sequence");
10875 staticpro (&QCkey_sequence
);
10876 QCtoggle
= intern (":toggle");
10877 staticpro (&QCtoggle
);
10878 QCradio
= intern (":radio");
10879 staticpro (&QCradio
);
10881 Qmode_line
= intern ("mode-line");
10882 staticpro (&Qmode_line
);
10883 Qvertical_line
= intern ("vertical-line");
10884 staticpro (&Qvertical_line
);
10885 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10886 staticpro (&Qvertical_scroll_bar
);
10887 Qmenu_bar
= intern ("menu-bar");
10888 staticpro (&Qmenu_bar
);
10891 Qmouse_fixup_help_message
= intern ("mouse-fixup-help-message");
10892 staticpro (&Qmouse_fixup_help_message
);
10895 Qabove_handle
= intern ("above-handle");
10896 staticpro (&Qabove_handle
);
10897 Qhandle
= intern ("handle");
10898 staticpro (&Qhandle
);
10899 Qbelow_handle
= intern ("below-handle");
10900 staticpro (&Qbelow_handle
);
10901 Qup
= intern ("up");
10903 Qdown
= intern ("down");
10904 staticpro (&Qdown
);
10905 Qtop
= intern ("top");
10907 Qbottom
= intern ("bottom");
10908 staticpro (&Qbottom
);
10909 Qend_scroll
= intern ("end-scroll");
10910 staticpro (&Qend_scroll
);
10911 Qratio
= intern ("ratio");
10912 staticpro (&Qratio
);
10914 Qevent_kind
= intern ("event-kind");
10915 staticpro (&Qevent_kind
);
10916 Qevent_symbol_elements
= intern ("event-symbol-elements");
10917 staticpro (&Qevent_symbol_elements
);
10918 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10919 staticpro (&Qevent_symbol_element_mask
);
10920 Qmodifier_cache
= intern ("modifier-cache");
10921 staticpro (&Qmodifier_cache
);
10923 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10924 staticpro (&Qrecompute_lucid_menubar
);
10925 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10926 staticpro (&Qactivate_menubar_hook
);
10928 Qpolling_period
= intern ("polling-period");
10929 staticpro (&Qpolling_period
);
10931 Qinput_method_function
= intern ("input-method-function");
10932 staticpro (&Qinput_method_function
);
10934 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
10935 staticpro (&Qinput_method_exit_on_first_char
);
10936 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
10937 staticpro (&Qinput_method_use_echo_area
);
10939 Fset (Qinput_method_exit_on_first_char
, Qnil
);
10940 Fset (Qinput_method_use_echo_area
, Qnil
);
10942 last_point_position_buffer
= Qnil
;
10945 struct event_head
*p
;
10947 for (p
= head_table
;
10948 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
10951 *p
->var
= intern (p
->name
);
10952 staticpro (p
->var
);
10953 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
10954 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
10958 button_down_location
= Fmake_vector (make_number (1), Qnil
);
10959 staticpro (&button_down_location
);
10960 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
10961 staticpro (&mouse_syms
);
10962 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
10963 staticpro (&wheel_syms
);
10967 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
10969 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
10970 for (i
= 0; i
< len
; i
++)
10971 if (modifier_names
[i
])
10972 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
10973 staticpro (&modifier_symbols
);
10976 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
10977 staticpro (&recent_keys
);
10979 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
10980 staticpro (&this_command_keys
);
10982 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
10983 staticpro (&raw_keybuf
);
10985 Qextended_command_history
= intern ("extended-command-history");
10986 Fset (Qextended_command_history
, Qnil
);
10987 staticpro (&Qextended_command_history
);
10989 accent_key_syms
= Qnil
;
10990 staticpro (&accent_key_syms
);
10992 func_key_syms
= Qnil
;
10993 staticpro (&func_key_syms
);
10995 drag_n_drop_syms
= Qnil
;
10996 staticpro (&drag_n_drop_syms
);
10998 unread_switch_frame
= Qnil
;
10999 staticpro (&unread_switch_frame
);
11001 internal_last_event_frame
= Qnil
;
11002 staticpro (&internal_last_event_frame
);
11004 read_key_sequence_cmd
= Qnil
;
11005 staticpro (&read_key_sequence_cmd
);
11007 menu_bar_one_keymap_changed_items
= Qnil
;
11008 staticpro (&menu_bar_one_keymap_changed_items
);
11010 menu_bar_items_vector
= Qnil
;
11011 staticpro (&menu_bar_items_vector
);
11013 defsubr (&Sevent_convert_list
);
11014 defsubr (&Sread_key_sequence
);
11015 defsubr (&Sread_key_sequence_vector
);
11016 defsubr (&Srecursive_edit
);
11018 defsubr (&Strack_mouse
);
11020 defsubr (&Sinput_pending_p
);
11021 defsubr (&Scommand_execute
);
11022 defsubr (&Srecent_keys
);
11023 defsubr (&Sthis_command_keys
);
11024 defsubr (&Sthis_command_keys_vector
);
11025 defsubr (&Sthis_single_command_keys
);
11026 defsubr (&Sthis_single_command_raw_keys
);
11027 defsubr (&Sreset_this_command_lengths
);
11028 defsubr (&Sclear_this_command_keys
);
11029 defsubr (&Ssuspend_emacs
);
11030 defsubr (&Sabort_recursive_edit
);
11031 defsubr (&Sexit_recursive_edit
);
11032 defsubr (&Srecursion_depth
);
11033 defsubr (&Stop_level
);
11034 defsubr (&Sdiscard_input
);
11035 defsubr (&Sopen_dribble_file
);
11036 defsubr (&Sset_input_mode
);
11037 defsubr (&Scurrent_input_mode
);
11038 defsubr (&Sexecute_extended_command
);
11039 defsubr (&Sposn_at_point
);
11040 defsubr (&Sposn_at_x_y
);
11042 DEFVAR_LISP ("last-command-char", &last_command_char
,
11043 doc
: /* Last input event that was part of a command. */);
11045 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11046 doc
: /* Last input event that was part of a command. */);
11048 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11049 doc
: /* Last input event in a command, except for mouse menu events.
11050 Mouse menus give back keys that don't look like mouse events;
11051 this variable holds the actual mouse event that led to the menu,
11052 so that you can determine whether the command was run by mouse or not. */);
11054 DEFVAR_LISP ("last-input-char", &last_input_char
,
11055 doc
: /* Last input event. */);
11057 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11058 doc
: /* Last input event. */);
11060 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11061 doc
: /* List of events to be read as the command input.
11062 These events are processed first, before actual keyboard input. */);
11063 Vunread_command_events
= Qnil
;
11065 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11066 doc
: /* If not -1, an object to be read as next command input event. */);
11068 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11069 doc
: /* List of events to be processed as input by input methods.
11070 These events are processed after `unread-command-events', but
11071 before actual keyboard input. */);
11072 Vunread_post_input_method_events
= Qnil
;
11074 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11075 doc
: /* List of events to be processed as input by input methods.
11076 These events are processed after `unread-command-events', but
11077 before actual keyboard input. */);
11078 Vunread_input_method_events
= Qnil
;
11080 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11081 doc
: /* Meta-prefix character code.
11082 Meta-foo as command input turns into this character followed by foo. */);
11083 XSETINT (meta_prefix_char
, 033);
11085 DEFVAR_KBOARD ("last-command", Vlast_command
,
11086 doc
: /* The last command executed.
11087 Normally a symbol with a function definition, but can be whatever was found
11088 in the keymap, or whatever the variable `this-command' was set to by that
11091 The value `mode-exit' is special; it means that the previous command
11092 read an event that told it to exit, and it did so and unread that event.
11093 In other words, the present command is the event that made the previous
11096 The value `kill-region' is special; it means that the previous command
11097 was a kill command. */);
11099 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11100 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11102 DEFVAR_LISP ("this-command", &Vthis_command
,
11103 doc
: /* The command now being executed.
11104 The command can set this variable; whatever is put here
11105 will be in `last-command' during the following command. */);
11106 Vthis_command
= Qnil
;
11108 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11109 doc
: /* The command bound to the current key sequence before remapping.
11110 It equals `this-command' if the original command was not remapped through
11111 any of the active keymaps. Otherwise, the value of `this-command' is the
11112 result of looking up the original command in the active keymaps. */);
11113 Vthis_original_command
= Qnil
;
11115 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11116 doc
: /* *Number of input events between auto-saves.
11117 Zero means disable autosaving due to number of characters typed. */);
11118 auto_save_interval
= 300;
11120 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11121 doc
: /* *Number of seconds idle time before auto-save.
11122 Zero or nil means disable auto-saving due to idleness.
11123 After auto-saving due to this many seconds of idle time,
11124 Emacs also does a garbage collection if that seems to be warranted. */);
11125 XSETFASTINT (Vauto_save_timeout
, 30);
11127 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11128 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11129 The value may be integer or floating point. */);
11130 Vecho_keystrokes
= make_number (1);
11132 DEFVAR_INT ("polling-period", &polling_period
,
11133 doc
: /* *Interval between polling for input during Lisp execution.
11134 The reason for polling is to make C-g work to stop a running program.
11135 Polling is needed only when using X windows and SIGIO does not work.
11136 Polling is automatically disabled in all other cases. */);
11137 polling_period
= 2;
11139 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11140 doc
: /* *Maximum time between mouse clicks to make a double-click.
11141 Measured in milliseconds. nil means disable double-click recognition;
11142 t means double-clicks have no time limit and are detected
11143 by position only. */);
11144 Vdouble_click_time
= make_number (500);
11146 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11147 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11148 On window-system frames, value is the number of pixels the mouse may have
11149 moved horizontally or vertically between two clicks to make a double-click.
11150 On non window-system frames, value is interpreted in units of 1/8 characters
11153 This variable is also the threshold for motion of the mouse
11154 to count as a drag. */);
11155 double_click_fuzz
= 3;
11157 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11158 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11159 inhibit_local_menu_bar_menus
= 0;
11161 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11162 doc
: /* Number of complete key sequences read as input so far.
11163 This includes key sequences read from keyboard macros.
11164 The number is effectively the number of interactive command invocations. */);
11165 num_input_keys
= 0;
11167 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11168 doc
: /* Number of input events read from the keyboard so far.
11169 This does not include events generated by keyboard macros. */);
11170 num_nonmacro_input_events
= 0;
11172 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11173 doc
: /* The frame in which the most recently read event occurred.
11174 If the last event came from a keyboard macro, this is set to `macro'. */);
11175 Vlast_event_frame
= Qnil
;
11177 /* This variable is set up in sysdep.c. */
11178 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11179 doc
: /* The ERASE character as set by the user with stty. */);
11181 DEFVAR_LISP ("help-char", &Vhelp_char
,
11182 doc
: /* Character to recognize as meaning Help.
11183 When it is read, do `(eval help-form)', and display result if it's a string.
11184 If the value of `help-form' is nil, this char can be read normally. */);
11185 XSETINT (Vhelp_char
, Ctl ('H'));
11187 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11188 doc
: /* List of input events to recognize as meaning Help.
11189 These work just like the value of `help-char' (see that). */);
11190 Vhelp_event_list
= Qnil
;
11192 DEFVAR_LISP ("help-form", &Vhelp_form
,
11193 doc
: /* Form to execute when character `help-char' is read.
11194 If the form returns a string, that string is displayed.
11195 If `help-form' is nil, the help char is not recognized. */);
11198 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11199 doc
: /* Command to run when `help-char' character follows a prefix key.
11200 This command is used only when there is no actual binding
11201 for that character after that prefix key. */);
11202 Vprefix_help_command
= Qnil
;
11204 DEFVAR_LISP ("top-level", &Vtop_level
,
11205 doc
: /* Form to evaluate when Emacs starts up.
11206 Useful to set before you dump a modified Emacs. */);
11209 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11210 doc
: /* Translate table for keyboard input, or nil.
11211 If non-nil, the value should be a char-table. Each character read
11212 from the keyboard is looked up in this char-table. If the value found
11213 there is non-nil, then it is used instead of the actual input character.
11215 The value can also be a string or vector, but this is considered obsolete.
11216 If it is a string or vector of length N, character codes N and up are left
11217 untranslated. In a vector, an element which is nil means "no translation".
11219 This is applied to the characters supplied to input methods, not their
11220 output. See also `translation-table-for-input'. */);
11221 Vkeyboard_translate_table
= Qnil
;
11223 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11224 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11225 \(Even if the operating system has support for stopping a process.\) */);
11226 cannot_suspend
= 0;
11228 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11229 doc
: /* Non-nil means prompt with menus when appropriate.
11230 This is done when reading from a keymap that has a prompt string,
11231 for elements that have prompt strings.
11232 The menu is displayed on the screen
11233 if X menus were enabled at configuration
11234 time and the previous event was a mouse click prefix key.
11235 Otherwise, menu prompting uses the echo area. */);
11236 menu_prompting
= 1;
11238 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11239 doc
: /* Character to see next line of menu prompt.
11240 Type this character while in a menu prompt to rotate around the lines of it. */);
11241 XSETINT (menu_prompt_more_char
, ' ');
11243 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11244 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11245 Emacs applies the modifiers of the character stored here to each keyboard
11246 character it reads. For example, after evaluating the expression
11247 (setq extra-keyboard-modifiers ?\\C-x)
11248 all input characters will have the control modifier applied to them.
11250 Note that the character ?\\C-@, equivalent to the integer zero, does
11251 not count as a control character; rather, it counts as a character
11252 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11253 cancels any modification. */);
11254 extra_keyboard_modifiers
= 0;
11256 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11257 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11258 The command loop sets this to nil before each command,
11259 and tests the value when the command returns.
11260 Buffer modification stores t in this variable. */);
11261 Vdeactivate_mark
= Qnil
;
11263 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11264 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11265 Vcommand_hook_internal
= Qnil
;
11267 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11268 doc
: /* Normal hook run before each command is executed.
11269 If an unhandled error happens in running this hook,
11270 the hook value is set to nil, since otherwise the error
11271 might happen repeatedly and make Emacs nonfunctional. */);
11272 Vpre_command_hook
= Qnil
;
11274 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11275 doc
: /* Normal hook run after each command is executed.
11276 If an unhandled error happens in running this hook,
11277 the hook value is set to nil, since otherwise the error
11278 might happen repeatedly and make Emacs nonfunctional. */);
11279 Vpost_command_hook
= Qnil
;
11282 DEFVAR_LISP ("echo-area-clear-hook", ...,
11283 doc
: /* Normal hook run when clearing the echo area. */);
11285 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11286 staticpro (&Qecho_area_clear_hook
);
11287 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11289 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11290 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11291 Vlucid_menu_bar_dirty_flag
= Qnil
;
11293 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11294 doc
: /* List of menu bar items to move to the end of the menu bar.
11295 The elements of the list are event types that may have menu bar bindings. */);
11296 Vmenu_bar_final_items
= Qnil
;
11298 DEFVAR_KBOARD ("overriding-terminal-local-map",
11299 Voverriding_terminal_local_map
,
11300 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11301 If this variable is non-nil, it is used as a keymap instead of the
11302 buffer's local map, and the minor mode keymaps and text property keymaps.
11303 It also replaces `overriding-local-map'.
11305 This variable is intended to let commands such as `universal-argument'
11306 set up a different keymap for reading the next command. */);
11308 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11309 doc
: /* Keymap that overrides all other local keymaps.
11310 If this variable is non-nil, it is used as a keymap--replacing the
11311 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11312 Voverriding_local_map
= Qnil
;
11314 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11315 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11316 Otherwise, the menu bar continues to reflect the buffer's local map
11317 and the minor mode maps regardless of `overriding-local-map'. */);
11318 Voverriding_local_map_menu_flag
= Qnil
;
11320 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11321 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11322 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11324 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11325 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11327 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11328 doc
: /* Alist of system-specific X windows key symbols.
11329 Each element should have the form (N . SYMBOL) where N is the
11330 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11331 and SYMBOL is its name. */);
11333 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11334 doc
: /* List of deferred actions to be performed at a later time.
11335 The precise format isn't relevant here; we just check whether it is nil. */);
11336 Vdeferred_action_list
= Qnil
;
11338 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11339 doc
: /* Function to call to handle deferred actions, after each command.
11340 This function is called with no arguments after each command
11341 whenever `deferred-action-list' is non-nil. */);
11342 Vdeferred_action_function
= Qnil
;
11344 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11345 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11346 The value can be a length of time to show the message for.
11347 If the value is non-nil and not a number, we wait 2 seconds. */);
11348 Vsuggest_key_bindings
= Qt
;
11350 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11351 doc
: /* List of active absolute time timers in order of increasing time. */);
11352 Vtimer_list
= Qnil
;
11354 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11355 doc
: /* List of active idle-time timers in order of increasing time. */);
11356 Vtimer_idle_list
= Qnil
;
11358 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11359 doc
: /* If non-nil, the function that implements the current input method.
11360 It's called with one argument, a printing character that was just read.
11361 \(That means a character with code 040...0176.)
11362 Typically this function uses `read-event' to read additional events.
11363 When it does so, it should first bind `input-method-function' to nil
11364 so it will not be called recursively.
11366 The function should return a list of zero or more events
11367 to be used as input. If it wants to put back some events
11368 to be reconsidered, separately, by the input method,
11369 it can add them to the beginning of `unread-command-events'.
11371 The input method function can find in `input-method-previous-method'
11372 the previous echo area message.
11374 The input method function should refer to the variables
11375 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11376 for guidance on what to do. */);
11377 Vinput_method_function
= Qnil
;
11379 DEFVAR_LISP ("input-method-previous-message",
11380 &Vinput_method_previous_message
,
11381 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11382 This variable exists because `read-event' clears the echo area
11383 before running the input method. It is nil if there was no message. */);
11384 Vinput_method_previous_message
= Qnil
;
11386 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11387 doc
: /* If non-nil, the function that implements the display of help.
11388 It's called with one argument, the help string to display. */);
11389 Vshow_help_function
= Qnil
;
11391 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11392 doc
: /* If non-nil, suppress point adjustment after executing a command.
11394 After a command is executed, if point is moved into a region that has
11395 special properties (e.g. composition, display), we adjust point to
11396 the boundary of the region. But, when a command sets this variable to
11397 non-nil, we suppress the point adjustment.
11399 This variable is set to nil before reading a command, and is checked
11400 just after executing the command. */);
11401 Vdisable_point_adjustment
= Qnil
;
11403 DEFVAR_LISP ("global-disable-point-adjustment",
11404 &Vglobal_disable_point_adjustment
,
11405 doc
: /* *If non-nil, always suppress point adjustment.
11407 The default value is nil, in which case, point adjustment are
11408 suppressed only after special commands that set
11409 `disable-point-adjustment' (which see) to non-nil. */);
11410 Vglobal_disable_point_adjustment
= Qnil
;
11412 DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings
,
11413 doc
: /* Non-nil means updating menu bindings is allowed.
11414 A value of nil means menu bindings should not be updated.
11415 Used during Emacs' startup. */);
11416 update_menu_bindings
= 1;
11418 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11419 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11420 If the value is not a number, such messages don't time out. */);
11421 Vminibuffer_message_timeout
= make_number (2);
11423 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11424 doc
: /* If non-nil, any keyboard input throws to this symbol.
11425 The value of that variable is passed to `quit-flag' and later causes a
11426 peculiar kind of quitting. */);
11427 Vthrow_on_input
= Qnil
;
11431 keys_of_keyboard ()
11433 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11434 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11435 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11436 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11437 initial_define_key (meta_map
, 'x', "execute-extended-command");
11439 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11440 "handle-delete-frame");
11441 /* Here we used to use `ignore-event' which would simple set prefix-arg to
11442 current-prefix-arg, as is done in `handle-switch-frame'.
11443 But `handle-switch-frame is not run from the special-map.
11444 Commands from that map are run in a special way that automatically
11445 preserves the prefix-arg. Restoring the prefix arg here is not just
11446 redundant but harmful:
11448 - current-prefix-arg is set to non-nil, prefix-arg is set to nil.
11449 - after the first prompt, the exit-minibuffer-hook is run which may
11450 iconify a frame and thus push a `iconify-frame' event.
11451 - after running exit-minibuffer-hook, current-prefix-arg is
11452 restored to the non-nil value it had before the prompt.
11453 - we enter the second prompt.
11454 current-prefix-arg is non-nil, prefix-arg is nil.
11455 - before running the first real event, we run the special iconify-frame
11456 event, but we pass the `special' arg to execute-command so
11457 current-prefix-arg and prefix-arg are left untouched.
11458 - here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
11459 - the next key event will have a spuriously non-nil current-prefix-arg. */
11460 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11462 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11464 /* Handling it at such a low-level causes read_key_sequence to get
11465 * confused because it doesn't realize that the current_buffer was
11466 * changed by read_char.
11468 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11469 * "handle-select-window"); */
11470 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11471 "handle-save-session");
11474 /* Mark the pointers in the kboard objects.
11475 Called by the Fgarbage_collector. */
11481 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11483 if (kb
->kbd_macro_buffer
)
11484 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11486 mark_object (kb
->Voverriding_terminal_local_map
);
11487 mark_object (kb
->Vlast_command
);
11488 mark_object (kb
->Vreal_last_command
);
11489 mark_object (kb
->Vprefix_arg
);
11490 mark_object (kb
->Vlast_prefix_arg
);
11491 mark_object (kb
->kbd_queue
);
11492 mark_object (kb
->defining_kbd_macro
);
11493 mark_object (kb
->Vlast_kbd_macro
);
11494 mark_object (kb
->Vsystem_key_alist
);
11495 mark_object (kb
->system_key_syms
);
11496 mark_object (kb
->Vdefault_minibuffer_frame
);
11497 mark_object (kb
->echo_string
);
11500 struct input_event
*event
;
11501 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11503 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11504 event
= kbd_buffer
;
11505 if (event
->kind
!= SELECTION_REQUEST_EVENT
11506 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11508 mark_object (event
->x
);
11509 mark_object (event
->y
);
11511 mark_object (event
->frame_or_window
);
11512 mark_object (event
->arg
);
11517 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11518 (do not change this comment) */