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 extern char *pending_malloc_warning
;
479 /* Circular buffer for pre-read keyboard input. */
481 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
483 /* Pointer to next available character in kbd_buffer.
484 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
485 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
486 next available char is in kbd_buffer[0]. */
487 static struct input_event
*kbd_fetch_ptr
;
489 /* Pointer to next place to store character in kbd_buffer. This
490 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
491 character should go in kbd_buffer[0]. */
492 static struct input_event
* volatile kbd_store_ptr
;
494 /* The above pair of variables forms a "queue empty" flag. When we
495 enqueue a non-hook event, we increment kbd_store_ptr. When we
496 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
497 there is input available iff the two pointers are not equal.
499 Why not just have a flag set and cleared by the enqueuing and
500 dequeuing functions? Such a flag could be screwed up by interrupts
501 at inopportune times. */
503 /* If this flag is non-nil, we check mouse_moved to see when the
504 mouse moves, and motion events will appear in the input stream.
505 Otherwise, mouse motion is ignored. */
506 Lisp_Object do_mouse_tracking
;
508 /* Symbols to head events. */
509 Lisp_Object Qmouse_movement
;
510 Lisp_Object Qscroll_bar_movement
;
511 Lisp_Object Qswitch_frame
;
512 Lisp_Object Qdelete_frame
;
513 Lisp_Object Qiconify_frame
;
514 Lisp_Object Qmake_frame_visible
;
515 Lisp_Object Qselect_window
;
516 Lisp_Object Qhelp_echo
;
519 Lisp_Object Qmouse_fixup_help_message
;
522 /* Symbols to denote kinds of events. */
523 Lisp_Object Qfunction_key
;
524 Lisp_Object Qmouse_click
;
525 #if defined (WINDOWSNT) || defined (MAC_OS)
526 Lisp_Object Qlanguage_change
;
528 Lisp_Object Qdrag_n_drop
;
529 Lisp_Object Qsave_session
;
531 /* Lisp_Object Qmouse_movement; - also an event header */
533 /* Properties of event headers. */
534 Lisp_Object Qevent_kind
;
535 Lisp_Object Qevent_symbol_elements
;
537 /* menu item parts */
538 Lisp_Object Qmenu_alias
;
539 Lisp_Object Qmenu_enable
;
540 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
541 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
542 extern Lisp_Object Vdefine_key_rebound_commands
;
543 extern Lisp_Object Qmenu_item
;
545 /* An event header symbol HEAD may have a property named
546 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
547 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
548 mask of modifiers applied to it. If present, this is used to help
549 speed up parse_modifiers. */
550 Lisp_Object Qevent_symbol_element_mask
;
552 /* An unmodified event header BASE may have a property named
553 Qmodifier_cache, which is an alist mapping modifier masks onto
554 modified versions of BASE. If present, this helps speed up
556 Lisp_Object Qmodifier_cache
;
558 /* Symbols to use for parts of windows. */
559 Lisp_Object Qmode_line
;
560 Lisp_Object Qvertical_line
;
561 Lisp_Object Qvertical_scroll_bar
;
562 Lisp_Object Qmenu_bar
;
563 extern Lisp_Object Qleft_margin
, Qright_margin
;
564 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
565 extern Lisp_Object QCmap
;
567 Lisp_Object
recursive_edit_unwind (), command_loop ();
568 Lisp_Object
Fthis_command_keys ();
569 Lisp_Object Qextended_command_history
;
570 EMACS_TIME
timer_check ();
572 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
574 extern char *x_get_keysym_name ();
576 static void record_menu_key ();
577 static int echo_length ();
579 Lisp_Object Qpolling_period
;
581 /* List of absolute timers. Appears in order of next scheduled event. */
582 Lisp_Object Vtimer_list
;
584 /* List of idle time timers. Appears in order of next scheduled event. */
585 Lisp_Object Vtimer_idle_list
;
587 /* Incremented whenever a timer is run. */
590 extern Lisp_Object Vprint_level
, Vprint_length
;
592 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
594 EMACS_TIME
*input_available_clear_time
;
596 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
597 Default is 1 if INTERRUPT_INPUT is defined. */
600 /* Nonzero while interrupts are temporarily deferred during redisplay. */
601 int interrupts_deferred
;
603 /* Nonzero means use ^S/^Q for flow control. */
606 /* Allow m- file to inhibit use of FIONREAD. */
607 #ifdef BROKEN_FIONREAD
611 /* We are unable to use interrupts if FIONREAD is not available,
612 so flush SIGIO so we won't try. */
613 #if !defined (FIONREAD)
619 /* If we support a window system, turn on the code to poll periodically
620 to detect C-g. It isn't actually used when doing interrupt input. */
621 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
622 #define POLL_FOR_INPUT
625 /* After a command is executed, if point is moved into a region that
626 has specific properties (e.g. composition, display), we adjust
627 point to the boundary of the region. But, if a command sets this
628 variable to non-nil, we suppress this point adjustment. This
629 variable is set to nil before reading a command. */
631 Lisp_Object Vdisable_point_adjustment
;
633 /* If non-nil, always disable point adjustment. */
635 Lisp_Object Vglobal_disable_point_adjustment
;
637 /* The time when Emacs started being idle. */
639 static EMACS_TIME timer_idleness_start_time
;
641 /* After Emacs stops being idle, this saves the last value
642 of timer_idleness_start_time from when it was idle. */
644 static EMACS_TIME timer_last_idleness_start_time
;
647 /* Global variable declarations. */
649 /* Flags for readable_events. */
650 #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
651 #define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
652 #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
654 /* Function for init_keyboard to call with no args (if nonzero). */
655 void (*keyboard_init_hook
) ();
657 static int read_avail_input
P_ ((int));
658 static void get_input_pending
P_ ((int *, int));
659 static int readable_events
P_ ((int));
660 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
661 Lisp_Object
, int *));
662 static Lisp_Object
read_char_x_menu_prompt ();
663 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
665 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
667 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
668 enum scroll_bar_part
,
669 Lisp_Object
, Lisp_Object
,
672 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
673 Lisp_Object
, char **,
674 Lisp_Object
*, unsigned));
675 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
676 static int parse_solitary_modifier
P_ ((Lisp_Object
));
677 static int parse_solitary_modifier ();
678 static void save_getcjmp
P_ ((jmp_buf));
679 static void save_getcjmp ();
680 static void restore_getcjmp
P_ ((jmp_buf));
681 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
682 static void clear_event
P_ ((struct input_event
*));
683 static void any_kboard_state
P_ ((void));
684 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
685 static void timer_start_idle
P_ ((void));
686 static void timer_stop_idle
P_ ((void));
687 static void timer_resume_idle
P_ ((void));
689 /* Nonzero means don't try to suspend even if the operating system seems
691 static int cannot_suspend
;
693 extern Lisp_Object Qidentity
, Qonly
;
695 /* Install the string STR as the beginning of the string of echoing,
696 so that it serves as a prompt for the next character.
697 Also start echoing. */
703 current_kboard
->echo_string
= str
;
704 current_kboard
->echo_after_prompt
= SCHARS (str
);
708 /* Add C to the echo string, if echoing is going on.
709 C can be a character, which is printed prettily ("M-C-x" and all that
710 jazz), or a symbol, whose name is printed. */
716 if (current_kboard
->immediate_echo
)
718 int size
= KEY_DESCRIPTION_SIZE
+ 100;
719 char *buffer
= (char *) alloca (size
);
721 Lisp_Object echo_string
;
723 echo_string
= current_kboard
->echo_string
;
725 /* If someone has passed us a composite event, use its head symbol. */
730 ptr
= push_key_description (XINT (c
), ptr
, 1);
732 else if (SYMBOLP (c
))
734 Lisp_Object name
= SYMBOL_NAME (c
);
735 int nbytes
= SBYTES (name
);
737 if (size
- (ptr
- buffer
) < nbytes
)
739 int offset
= ptr
- buffer
;
740 size
= max (2 * size
, size
+ nbytes
);
741 buffer
= (char *) alloca (size
);
742 ptr
= buffer
+ offset
;
745 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
746 STRING_MULTIBYTE (name
), 1);
749 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
752 const char *text
= " (Type ? for further options)";
753 int len
= strlen (text
);
755 if (size
- (ptr
- buffer
) < len
)
757 int offset
= ptr
- buffer
;
759 buffer
= (char *) alloca (size
);
760 ptr
= buffer
+ offset
;
763 bcopy (text
, ptr
, len
);
767 /* Replace a dash from echo_dash with a space, otherwise
768 add a space at the end as a separator between keys. */
769 if (STRINGP (echo_string
)
770 && SCHARS (echo_string
) > 1)
772 Lisp_Object last_char
, prev_char
, idx
;
774 idx
= make_number (SCHARS (echo_string
) - 2);
775 prev_char
= Faref (echo_string
, idx
);
777 idx
= make_number (SCHARS (echo_string
) - 1);
778 last_char
= Faref (echo_string
, idx
);
780 /* We test PREV_CHAR to make sure this isn't the echoing
782 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
783 Faset (echo_string
, idx
, make_number (' '));
785 echo_string
= concat2 (echo_string
, build_string (" "));
788 current_kboard
->echo_string
789 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
795 /* Temporarily add a dash to the end of the echo string if it's not
796 empty, so that it serves as a mini-prompt for the very next character. */
801 /* Do nothing if not echoing at all. */
802 if (NILP (current_kboard
->echo_string
))
805 if (!current_kboard
->immediate_echo
806 && SCHARS (current_kboard
->echo_string
) == 0)
809 /* Do nothing if we just printed a prompt. */
810 if (current_kboard
->echo_after_prompt
811 == SCHARS (current_kboard
->echo_string
))
814 /* Do nothing if we have already put a dash at the end. */
815 if (SCHARS (current_kboard
->echo_string
) > 1)
817 Lisp_Object last_char
, prev_char
, idx
;
819 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 2);
820 prev_char
= Faref (current_kboard
->echo_string
, idx
);
822 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 1);
823 last_char
= Faref (current_kboard
->echo_string
, idx
);
825 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
829 /* Put a dash at the end of the buffer temporarily,
830 but make it go away when the next character is added. */
831 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
836 /* Display the current echo string, and begin echoing if not already
842 if (!current_kboard
->immediate_echo
)
845 current_kboard
->immediate_echo
= 1;
847 for (i
= 0; i
< this_command_key_count
; i
++)
851 /* Set before_command_echo_length to the value that would
852 have been saved before the start of this subcommand in
853 command_loop_1, if we had already been echoing then. */
854 if (i
== this_single_command_key_start
)
855 before_command_echo_length
= echo_length ();
857 c
= XVECTOR (this_command_keys
)->contents
[i
];
858 if (! (EVENT_HAS_PARAMETERS (c
)
859 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
863 /* Set before_command_echo_length to the value that would
864 have been saved before the start of this subcommand in
865 command_loop_1, if we had already been echoing then. */
866 if (this_command_key_count
== this_single_command_key_start
)
867 before_command_echo_length
= echo_length ();
869 /* Put a dash at the end to invite the user to type more. */
874 message3_nolog (current_kboard
->echo_string
,
875 SBYTES (current_kboard
->echo_string
),
876 STRING_MULTIBYTE (current_kboard
->echo_string
));
879 /* Record in what buffer we echoed, and from which kboard. */
880 echo_message_buffer
= echo_area_buffer
[0];
881 echo_kboard
= current_kboard
;
883 if (waiting_for_input
&& !NILP (Vquit_flag
))
884 quit_throw_to_read_char ();
887 /* Turn off echoing, for the start of a new command. */
892 current_kboard
->immediate_echo
= 0;
893 current_kboard
->echo_after_prompt
= -1;
894 current_kboard
->echo_string
= Qnil
;
895 ok_to_echo_at_next_pause
= NULL
;
897 echo_message_buffer
= Qnil
;
900 /* Return the length of the current echo string. */
905 return (STRINGP (current_kboard
->echo_string
)
906 ? SCHARS (current_kboard
->echo_string
)
910 /* Truncate the current echo message to its first LEN chars.
911 This and echo_char get used by read_key_sequence when the user
912 switches frames while entering a key sequence. */
915 echo_truncate (nchars
)
918 if (STRINGP (current_kboard
->echo_string
))
919 current_kboard
->echo_string
920 = Fsubstring (current_kboard
->echo_string
,
921 make_number (0), make_number (nchars
));
922 truncate_echo_area (nchars
);
926 /* Functions for manipulating this_command_keys. */
928 add_command_key (key
)
931 #if 0 /* Not needed after we made Freset_this_command_lengths
932 do the job immediately. */
933 /* If reset-this-command-length was called recently, obey it now.
934 See the doc string of that function for an explanation of why. */
935 if (before_command_restore_flag
)
937 this_command_key_count
= before_command_key_count_1
;
938 if (this_command_key_count
< this_single_command_key_start
)
939 this_single_command_key_start
= this_command_key_count
;
940 echo_truncate (before_command_echo_length_1
);
941 before_command_restore_flag
= 0;
945 if (this_command_key_count
>= ASIZE (this_command_keys
))
946 this_command_keys
= larger_vector (this_command_keys
,
947 2 * ASIZE (this_command_keys
),
950 AREF (this_command_keys
, this_command_key_count
) = key
;
951 ++this_command_key_count
;
958 int count
= SPECPDL_INDEX ();
961 if (command_loop_level
> 0)
963 specbind (Qstandard_output
, Qt
);
964 specbind (Qstandard_input
, Qt
);
967 #ifdef HAVE_X_WINDOWS
968 /* The command loop has started an hourglass timer, so we have to
969 cancel it here, otherwise it will fire because the recursive edit
970 can take some time. Do not check for display_hourglass_p here,
971 because it could already be nil. */
975 /* This function may have been called from a debugger called from
976 within redisplay, for instance by Edebugging a function called
977 from fontification-functions. We want to allow redisplay in
978 the debugging session.
980 The recursive edit is left with a `(throw exit ...)'. The `exit'
981 tag is not caught anywhere in redisplay, i.e. when we leave the
982 recursive edit, the original redisplay leading to the recursive
983 edit will be unwound. The outcome should therefore be safe. */
984 specbind (Qinhibit_redisplay
, Qnil
);
987 val
= command_loop ();
989 Fsignal (Qquit
, Qnil
);
990 /* Handle throw from read_minibuf when using minibuffer
991 while it's active but we're in another window. */
993 Fsignal (Qerror
, Fcons (val
, Qnil
));
995 return unbind_to (count
, Qnil
);
998 /* When an auto-save happens, record the "time", and don't do again soon. */
1003 last_auto_save
= num_nonmacro_input_events
;
1006 /* Make an auto save happen as soon as possible at command level. */
1009 force_auto_save_soon ()
1011 last_auto_save
= - auto_save_interval
- 1;
1013 record_asynch_buffer_change ();
1016 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
1017 doc
: /* Invoke the editor command loop recursively.
1018 To get out of the recursive edit, a command can do `(throw 'exit nil)';
1019 that tells this function to return.
1020 Alternatively, `(throw 'exit t)' makes this function signal an error.
1021 This function is called by the editor initialization to begin editing. */)
1024 int count
= SPECPDL_INDEX ();
1027 /* If we enter while input is blocked, don't lock up here.
1028 This may happen through the debugger during redisplay. */
1029 if (INPUT_BLOCKED_P
)
1032 command_loop_level
++;
1033 update_mode_lines
= 1;
1035 if (command_loop_level
1036 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
1037 buffer
= Fcurrent_buffer ();
1041 /* If we leave recursive_edit_1 below with a `throw' for instance,
1042 like it is done in the splash screen display, we have to
1043 make sure that we restore single_kboard as command_loop_1
1044 would have done if it were left normally. */
1045 record_unwind_protect (recursive_edit_unwind
,
1046 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1048 recursive_edit_1 ();
1049 return unbind_to (count
, Qnil
);
1053 recursive_edit_unwind (info
)
1056 if (BUFFERP (XCAR (info
)))
1057 Fset_buffer (XCAR (info
));
1059 if (NILP (XCDR (info
)))
1060 any_kboard_state ();
1062 single_kboard_state ();
1064 command_loop_level
--;
1065 update_mode_lines
= 1;
1074 #if 0 /* Theory: if there's anything in Vunread_command_events,
1075 it will right away be read by read_key_sequence,
1076 and then if we do switch KBOARDS, it will go into the side
1077 queue then. So we don't need to do anything special here -- rms. */
1078 if (CONSP (Vunread_command_events
))
1080 current_kboard
->kbd_queue
1081 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1082 current_kboard
->kbd_queue_has_data
= 1;
1084 Vunread_command_events
= Qnil
;
1090 /* Switch to the single-kboard state, making current_kboard
1091 the only KBOARD from which further input is accepted. */
1094 single_kboard_state ()
1101 /* If we're in single_kboard state for kboard KBOARD,
1105 not_single_kboard_state (kboard
)
1109 if (kboard
== current_kboard
)
1114 /* Maintain a stack of kboards, so other parts of Emacs
1115 can switch temporarily to the kboard of a given frame
1116 and then revert to the previous status. */
1121 struct kboard_stack
*next
;
1124 static struct kboard_stack
*kboard_stack
;
1127 push_frame_kboard (f
)
1131 struct kboard_stack
*p
1132 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1134 p
->next
= kboard_stack
;
1135 p
->kboard
= current_kboard
;
1138 current_kboard
= FRAME_KBOARD (f
);
1146 struct kboard_stack
*p
= kboard_stack
;
1147 current_kboard
= p
->kboard
;
1148 kboard_stack
= p
->next
;
1153 /* Handle errors that are not handled at inner levels
1154 by printing an error message and returning to the editor command loop. */
1160 Lisp_Object old_level
, old_length
;
1161 char macroerror
[50];
1163 #ifdef HAVE_X_WINDOWS
1164 if (display_hourglass_p
)
1165 cancel_hourglass ();
1168 if (!NILP (executing_kbd_macro
))
1170 if (executing_kbd_macro_iterations
== 1)
1171 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1173 sprintf (macroerror
, "After %d kbd macro iterations: ",
1174 executing_kbd_macro_iterations
);
1179 Vstandard_output
= Qt
;
1180 Vstandard_input
= Qt
;
1181 Vexecuting_kbd_macro
= Qnil
;
1182 executing_kbd_macro
= Qnil
;
1183 current_kboard
->Vprefix_arg
= Qnil
;
1184 current_kboard
->Vlast_prefix_arg
= Qnil
;
1187 /* Avoid unquittable loop if data contains a circular list. */
1188 old_level
= Vprint_level
;
1189 old_length
= Vprint_length
;
1190 XSETFASTINT (Vprint_level
, 10);
1191 XSETFASTINT (Vprint_length
, 10);
1192 cmd_error_internal (data
, macroerror
);
1193 Vprint_level
= old_level
;
1194 Vprint_length
= old_length
;
1198 Vinhibit_quit
= Qnil
;
1200 if (command_loop_level
== 0 && minibuf_level
== 0)
1201 any_kboard_state ();
1204 return make_number (0);
1207 /* Take actions on handling an error. DATA is the data that describes
1210 CONTEXT is a C-string containing ASCII characters only which
1211 describes the context in which the error happened. If we need to
1212 generalize CONTEXT to allow multibyte characters, make it a Lisp
1216 cmd_error_internal (data
, context
)
1221 int kill_emacs_p
= 0;
1222 struct frame
*sf
= SELECTED_FRAME ();
1226 clear_message (1, 0);
1228 /* If the window system or terminal frame hasn't been initialized
1229 yet, or we're not interactive, it's best to dump this message out
1230 to stderr and exit. */
1231 if (!sf
->glyphs_initialized_p
1232 /* This is the case of the frame dumped with Emacs, when we're
1233 running under a window system. */
1234 || (!NILP (Vwindow_system
)
1235 && !inhibit_window_system
1236 && FRAME_TERMCAP_P (sf
))
1239 stream
= Qexternal_debugging_output
;
1245 message_log_maybe_newline ();
1250 /* The immediate context is not interesting for Quits,
1251 since they are asyncronous. */
1252 if (EQ (XCAR (data
), Qquit
))
1253 Vsignaling_function
= Qnil
;
1255 print_error_message (data
, stream
, context
, Vsignaling_function
);
1257 Vsignaling_function
= Qnil
;
1259 /* If the window system or terminal frame hasn't been initialized
1260 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1264 Fkill_emacs (make_number (-1));
1268 Lisp_Object
command_loop_1 ();
1269 Lisp_Object
command_loop_2 ();
1270 Lisp_Object
top_level_1 ();
1272 /* Entry to editor-command-loop.
1273 This level has the catches for exiting/returning to editor command loop.
1274 It returns nil to exit recursive edit, t to abort it. */
1279 if (command_loop_level
> 0 || minibuf_level
> 0)
1282 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1283 executing_kbd_macro
= Qnil
;
1289 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1290 /* Reset single_kboard in case top-level set it while
1291 evaluating an -f option, or we are stuck there for some
1293 any_kboard_state ();
1294 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1295 executing_kbd_macro
= Qnil
;
1297 /* End of file in -batch run causes exit here. */
1303 /* Here we catch errors in execution of commands within the
1304 editing loop, and reenter the editing loop.
1305 When there is an error, cmd_error runs and returns a non-nil
1306 value to us. A value of nil means that command_loop_1 itself
1307 returned due to end of file (or end of kbd macro). */
1312 register Lisp_Object val
;
1315 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1316 while (!NILP (val
));
1324 return Feval (Vtop_level
);
1330 /* On entry to the outer level, run the startup file */
1331 if (!NILP (Vtop_level
))
1332 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1333 else if (!NILP (Vpurify_flag
))
1334 message ("Bare impure Emacs (standard Lisp code not loaded)");
1336 message ("Bare Emacs (standard Lisp code not loaded)");
1340 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1341 doc
: /* Exit all recursive editing levels. */)
1344 #ifdef HAVE_X_WINDOWS
1345 if (display_hourglass_p
)
1346 cancel_hourglass ();
1349 /* Unblock input if we enter with input blocked. This may happen if
1350 redisplay traps e.g. during tool-bar update with input blocked. */
1351 while (INPUT_BLOCKED_P
)
1354 return Fthrow (Qtop_level
, Qnil
);
1357 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1358 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1361 if (command_loop_level
> 0 || minibuf_level
> 0)
1362 Fthrow (Qexit
, Qnil
);
1364 error ("No recursive edit is in progress");
1368 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1369 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1372 if (command_loop_level
> 0 || minibuf_level
> 0)
1375 error ("No recursive edit is in progress");
1379 /* This is the actual command reading loop,
1380 sans error-handling encapsulation. */
1382 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1384 void safe_run_hooks
P_ ((Lisp_Object
));
1385 static void adjust_point_for_property
P_ ((int, int));
1387 /* Cancel hourglass from protect_unwind.
1389 #ifdef HAVE_X_WINDOWS
1391 cancel_hourglass_unwind (arg
)
1394 cancel_hourglass ();
1405 Lisp_Object keybuf
[30];
1409 struct buffer
*prev_buffer
= NULL
;
1411 int was_locked
= single_kboard
;
1413 int already_adjusted
;
1415 current_kboard
->Vprefix_arg
= Qnil
;
1416 current_kboard
->Vlast_prefix_arg
= Qnil
;
1417 Vdeactivate_mark
= Qnil
;
1418 waiting_for_input
= 0;
1422 this_command_key_count
= 0;
1423 this_command_key_count_reset
= 0;
1424 this_single_command_key_start
= 0;
1426 if (NILP (Vmemory_full
))
1428 /* Make sure this hook runs after commands that get errors and
1429 throw to top level. */
1430 /* Note that the value cell will never directly contain nil
1431 if the symbol is a local variable. */
1432 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1433 safe_run_hooks (Qpost_command_hook
);
1435 /* If displaying a message, resize the echo area window to fit
1436 that message's size exactly. */
1437 if (!NILP (echo_area_buffer
[0]))
1438 resize_echo_area_exactly ();
1440 if (!NILP (Vdeferred_action_list
))
1441 safe_run_hooks (Qdeferred_action_function
);
1444 Vmemory_full
= Qnil
;
1446 /* Do this after running Vpost_command_hook, for consistency. */
1447 current_kboard
->Vlast_command
= Vthis_command
;
1448 current_kboard
->Vreal_last_command
= real_this_command
;
1452 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1455 /* Make sure the current window's buffer is selected. */
1456 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1457 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1459 /* Display any malloc warning that just came out. Use while because
1460 displaying one warning can cause another. */
1462 while (pending_malloc_warning
)
1463 display_malloc_warning ();
1467 Vdeactivate_mark
= Qnil
;
1469 /* If minibuffer on and echo area in use,
1470 wait a short time and redraw minibuffer. */
1473 && !NILP (echo_area_buffer
[0])
1474 && EQ (minibuf_window
, echo_area_window
)
1475 && NUMBERP (Vminibuffer_message_timeout
))
1477 /* Bind inhibit-quit to t so that C-g gets read in
1478 rather than quitting back to the minibuffer. */
1479 int count
= SPECPDL_INDEX ();
1480 specbind (Qinhibit_quit
, Qt
);
1482 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1483 /* Clear the echo area. */
1485 safe_run_hooks (Qecho_area_clear_hook
);
1487 unbind_to (count
, Qnil
);
1489 /* If a C-g came in before, treat it as input now. */
1490 if (!NILP (Vquit_flag
))
1493 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1498 alloca (0); /* Cause a garbage collection now */
1499 /* Since we can free the most stuff here. */
1500 #endif /* C_ALLOCA */
1503 /* Select the frame that the last event came from. Usually,
1504 switch-frame events will take care of this, but if some lisp
1505 code swallows a switch-frame event, we'll fix things up here.
1506 Is this a good idea? */
1507 if (FRAMEP (internal_last_event_frame
)
1508 && !EQ (internal_last_event_frame
, selected_frame
))
1509 Fselect_frame (internal_last_event_frame
);
1511 /* If it has changed current-menubar from previous value,
1512 really recompute the menubar from the value. */
1513 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1514 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1515 call0 (Qrecompute_lucid_menubar
);
1517 before_command_key_count
= this_command_key_count
;
1518 before_command_echo_length
= echo_length ();
1520 Vthis_command
= Qnil
;
1521 real_this_command
= Qnil
;
1522 Vthis_original_command
= Qnil
;
1524 /* Read next key sequence; i gets its length. */
1525 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1528 /* A filter may have run while we were reading the input. */
1529 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1531 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1532 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1536 /* Now we have read a key sequence of length I,
1537 or else I is 0 and we found end of file. */
1539 if (i
== 0) /* End of file -- happens only in */
1540 return Qnil
; /* a kbd macro, at the end. */
1541 /* -1 means read_key_sequence got a menu that was rejected.
1542 Just loop around and read another command. */
1546 this_command_key_count
= 0;
1547 this_command_key_count_reset
= 0;
1548 this_single_command_key_start
= 0;
1552 last_command_char
= keybuf
[i
- 1];
1554 /* If the previous command tried to force a specific window-start,
1555 forget about that, in case this command moves point far away
1556 from that position. But also throw away beg_unchanged and
1557 end_unchanged information in that case, so that redisplay will
1558 update the whole window properly. */
1559 if (!NILP (XWINDOW (selected_window
)->force_start
))
1562 XWINDOW (selected_window
)->force_start
= Qnil
;
1563 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1564 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1567 cmd
= read_key_sequence_cmd
;
1568 if (!NILP (Vexecuting_kbd_macro
))
1570 if (!NILP (Vquit_flag
))
1572 Vexecuting_kbd_macro
= Qt
;
1573 QUIT
; /* Make some noise. */
1574 /* Will return since macro now empty. */
1578 /* Do redisplay processing after this command except in special
1579 cases identified below. */
1580 prev_buffer
= current_buffer
;
1581 prev_modiff
= MODIFF
;
1582 last_point_position
= PT
;
1583 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1585 /* By default, we adjust point to a boundary of a region that
1586 has such a property that should be treated intangible
1587 (e.g. composition, display). But, some commands will set
1588 this variable differently. */
1589 Vdisable_point_adjustment
= Qnil
;
1591 /* Process filters and timers may have messed with deactivate-mark.
1592 reset it before we execute the command. */
1593 Vdeactivate_mark
= Qnil
;
1595 /* Remap command through active keymaps */
1596 Vthis_original_command
= cmd
;
1600 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1604 /* Execute the command. */
1606 Vthis_command
= cmd
;
1607 real_this_command
= cmd
;
1608 /* Note that the value cell will never directly contain nil
1609 if the symbol is a local variable. */
1610 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1611 safe_run_hooks (Qpre_command_hook
);
1613 already_adjusted
= 0;
1615 if (NILP (Vthis_command
))
1617 /* nil means key is undefined. */
1618 Lisp_Object keys
= Fvector (i
, keybuf
);
1619 keys
= Fkey_description (keys
, Qnil
);
1621 message_with_string ("%s is undefined", keys
, 0);
1622 current_kboard
->defining_kbd_macro
= Qnil
;
1623 update_mode_lines
= 1;
1624 current_kboard
->Vprefix_arg
= Qnil
;
1628 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1630 /* In case we jump to directly_done. */
1631 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1633 /* Recognize some common commands in common situations and
1634 do them directly. */
1635 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1637 struct Lisp_Char_Table
*dp
1638 = window_display_table (XWINDOW (selected_window
));
1639 lose
= FETCH_CHAR (PT_BYTE
);
1641 if (! NILP (Vpost_command_hook
))
1642 /* Put this before calling adjust_point_for_property
1643 so it will only get called once in any case. */
1645 if (current_buffer
== prev_buffer
1646 && last_point_position
!= PT
1647 && NILP (Vdisable_point_adjustment
)
1648 && NILP (Vglobal_disable_point_adjustment
))
1649 adjust_point_for_property (last_point_position
, 0);
1650 already_adjusted
= 1;
1651 if (PT
== last_point_position
+ 1
1653 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1654 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1655 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1656 && (lose
>= 0x20 && lose
< 0x7f)))
1657 : (lose
>= 0x20 && lose
< 0x7f))
1658 /* To extract the case of continuation on
1659 wide-column characters. */
1660 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1661 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1663 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1665 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1667 && !windows_or_buffers_changed
1668 && EQ (current_buffer
->selective_display
, Qnil
)
1669 && !detect_input_pending ()
1670 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1671 && NILP (Vexecuting_kbd_macro
))
1672 direct_output_forward_char (1);
1675 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1677 struct Lisp_Char_Table
*dp
1678 = window_display_table (XWINDOW (selected_window
));
1680 lose
= FETCH_CHAR (PT_BYTE
);
1681 if (! NILP (Vpost_command_hook
))
1683 if (current_buffer
== prev_buffer
1684 && last_point_position
!= PT
1685 && NILP (Vdisable_point_adjustment
)
1686 && NILP (Vglobal_disable_point_adjustment
))
1687 adjust_point_for_property (last_point_position
, 0);
1688 already_adjusted
= 1;
1689 if (PT
== last_point_position
- 1
1691 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1692 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1693 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1694 && (lose
>= 0x20 && lose
< 0x7f)))
1695 : (lose
>= 0x20 && lose
< 0x7f))
1696 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1698 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1700 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1702 && !windows_or_buffers_changed
1703 && EQ (current_buffer
->selective_display
, Qnil
)
1704 && !detect_input_pending ()
1705 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1706 && NILP (Vexecuting_kbd_macro
))
1707 direct_output_forward_char (-1);
1710 else if (EQ (Vthis_command
, Qself_insert_command
)
1711 /* Try this optimization only on char keystrokes. */
1712 && NATNUMP (last_command_char
)
1713 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1716 = translate_char (Vtranslation_table_for_input
,
1717 XFASTINT (last_command_char
), 0, 0, 0);
1719 if (NILP (Vexecuting_kbd_macro
)
1720 && !EQ (minibuf_window
, selected_window
))
1722 if (!nonundocount
|| nonundocount
>= 20)
1730 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1732 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1734 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1736 || MODIFF
<= SAVE_MODIFF
1737 || windows_or_buffers_changed
1738 || !EQ (current_buffer
->selective_display
, Qnil
)
1739 || detect_input_pending ()
1740 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1741 || !NILP (Vexecuting_kbd_macro
));
1743 value
= internal_self_insert (c
, 0);
1748 if (! NILP (Vpost_command_hook
))
1749 /* Put this before calling adjust_point_for_property
1750 so it will only get called once in any case. */
1753 /* VALUE == 1 when AFTER-CHANGE functions are
1754 installed which is the case most of the time
1755 because FONT-LOCK installs one. */
1756 if (!lose
&& !value
)
1757 direct_output_for_insert (c
);
1762 /* Here for a command that isn't executed directly */
1765 #ifdef HAVE_X_WINDOWS
1766 int scount
= SPECPDL_INDEX ();
1768 if (display_hourglass_p
1769 && NILP (Vexecuting_kbd_macro
))
1771 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1777 if (NILP (current_kboard
->Vprefix_arg
))
1779 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1781 #ifdef HAVE_X_WINDOWS
1782 /* Do not check display_hourglass_p here, because
1783 Fcommand_execute could change it, but we should cancel
1784 hourglass cursor anyway.
1785 But don't cancel the hourglass within a macro
1786 just because a command in the macro finishes. */
1787 if (NILP (Vexecuting_kbd_macro
))
1788 unbind_to (scount
, Qnil
);
1793 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1795 /* Note that the value cell will never directly contain nil
1796 if the symbol is a local variable. */
1797 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1798 safe_run_hooks (Qpost_command_hook
);
1800 /* If displaying a message, resize the echo area window to fit
1801 that message's size exactly. */
1802 if (!NILP (echo_area_buffer
[0]))
1803 resize_echo_area_exactly ();
1805 if (!NILP (Vdeferred_action_list
))
1806 safe_run_hooks (Qdeferred_action_function
);
1808 /* If there is a prefix argument,
1809 1) We don't want Vlast_command to be ``universal-argument''
1810 (that would be dumb), so don't set Vlast_command,
1811 2) we want to leave echoing on so that the prefix will be
1812 echoed as part of this key sequence, so don't call
1814 3) we want to leave this_command_key_count non-zero, so that
1815 read_char will realize that it is re-reading a character, and
1816 not echo it a second time.
1818 If the command didn't actually create a prefix arg,
1819 but is merely a frame event that is transparent to prefix args,
1820 then the above doesn't apply. */
1821 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1823 current_kboard
->Vlast_command
= Vthis_command
;
1824 current_kboard
->Vreal_last_command
= real_this_command
;
1826 this_command_key_count
= 0;
1827 this_command_key_count_reset
= 0;
1828 this_single_command_key_start
= 0;
1831 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1833 /* Setting transient-mark-mode to `only' is a way of
1834 turning it on for just one command. */
1836 if (EQ (Vtransient_mark_mode
, Qidentity
))
1837 Vtransient_mark_mode
= Qnil
;
1838 if (EQ (Vtransient_mark_mode
, Qonly
))
1839 Vtransient_mark_mode
= Qidentity
;
1841 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1843 /* We could also call `deactivate'mark'. */
1844 if (EQ (Vtransient_mark_mode
, Qlambda
))
1845 Vtransient_mark_mode
= Qnil
;
1848 current_buffer
->mark_active
= Qnil
;
1849 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1852 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1853 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1858 if (current_buffer
== prev_buffer
1859 && last_point_position
!= PT
1860 && NILP (Vdisable_point_adjustment
)
1861 && NILP (Vglobal_disable_point_adjustment
)
1862 && !already_adjusted
)
1863 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1865 /* Install chars successfully executed in kbd macro. */
1867 if (!NILP (current_kboard
->defining_kbd_macro
)
1868 && NILP (current_kboard
->Vprefix_arg
))
1869 finalize_kbd_macro_chars ();
1873 any_kboard_state ();
1878 extern Lisp_Object Qcomposition
, Qdisplay
;
1880 /* Adjust point to a boundary of a region that has such a property
1881 that should be treated intangible. For the moment, we check
1882 `composition', `display' and `invisible' properties.
1883 LAST_PT is the last position of point. */
1885 extern Lisp_Object Qafter_string
, Qbefore_string
;
1886 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1889 adjust_point_for_property (last_pt
, modified
)
1894 Lisp_Object val
, overlay
, tmp
;
1895 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1898 /* FIXME: cycling is probably not necessary because these properties
1899 can't be usefully combined anyway. */
1900 while (check_composition
|| check_display
|| check_invisible
)
1902 if (check_composition
1903 && PT
> BEGV
&& PT
< ZV
1904 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1905 && COMPOSITION_VALID_P (beg
, end
, val
)
1906 && beg
< PT
/* && end > PT <- It's always the case. */
1907 && (last_pt
<= beg
|| last_pt
>= end
))
1910 SET_PT (PT
< last_pt
? beg
: end
);
1911 check_display
= check_invisible
= 1;
1913 check_composition
= 0;
1915 && PT
> BEGV
&& PT
< ZV
1916 && !NILP (val
= get_char_property_and_overlay
1917 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1918 && display_prop_intangible_p (val
)
1919 && (!OVERLAYP (overlay
)
1920 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1921 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1922 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1923 && (beg
< PT
/* && end > PT <- It's always the case. */
1924 || (beg
<= PT
&& STRINGP (val
) && SCHARS (val
) == 0)))
1927 SET_PT (PT
< last_pt
1928 ? (STRINGP (val
) && SCHARS (val
) == 0 ? beg
- 1 : beg
)
1930 check_composition
= check_invisible
= 1;
1933 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1935 int inv
, ellipsis
= 0;
1938 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1940 && !NILP (val
= get_char_property_and_overlay
1941 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1942 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1944 ellipsis
= ellipsis
|| inv
> 1
1945 || (OVERLAYP (overlay
)
1946 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1947 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1948 tmp
= Fnext_single_char_property_change
1949 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1950 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1953 && !NILP (val
= get_char_property_and_overlay
1954 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1955 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1957 ellipsis
= ellipsis
|| inv
> 1
1958 || (OVERLAYP (overlay
)
1959 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1960 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1961 tmp
= Fprevious_single_char_property_change
1962 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1963 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1966 /* Move away from the inside area. */
1967 if (beg
< PT
&& end
> PT
)
1969 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1970 /* We haven't moved yet (so we don't need to fear
1971 infinite-looping) and we were outside the range
1972 before (so either end of the range still corresponds
1973 to a move in the right direction): pretend we moved
1974 less than we actually did, so that we still have
1975 more freedom below in choosing which end of the range
1977 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1978 /* We either have moved already or the last point
1979 was already in the range: we don't get to choose
1980 which end of the range we have to go to. */
1981 : (PT
< last_pt
? beg
: end
));
1982 check_composition
= check_display
= 1;
1984 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1985 the point to something other than its argument, due to
1986 point-motion hooks, intangibility, etc. */
1987 xassert (PT
== beg
|| PT
== end
);
1990 /* Pretend the area doesn't exist if the buffer is not
1992 if (!modified
&& !ellipsis
&& beg
< end
)
1994 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1995 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
1996 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
1997 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
1998 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
1999 /* We've already moved as far as we can. Trying to go
2000 to the other end would mean moving backwards and thus
2001 could lead to an infinite loop. */
2003 else if (val
= get_pos_property (make_number (PT
),
2005 TEXT_PROP_MEANS_INVISIBLE (val
)
2006 && (val
= get_pos_property
2007 (make_number (PT
== beg
? end
: beg
),
2009 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2010 (check_composition
= check_display
= 1,
2011 SET_PT (PT
== beg
? end
: beg
));
2014 check_invisible
= 0;
2018 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2021 safe_run_hooks_1 (hook
)
2024 return call1 (Vrun_hooks
, Vinhibit_quit
);
2027 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2030 safe_run_hooks_error (data
)
2033 Lisp_Object args
[3];
2034 args
[0] = build_string ("Error in %s: %s");
2035 args
[1] = Vinhibit_quit
;
2038 return Fset (Vinhibit_quit
, Qnil
);
2041 /* If we get an error while running the hook, cause the hook variable
2042 to be nil. Also inhibit quits, so that C-g won't cause the hook
2043 to mysteriously evaporate. */
2046 safe_run_hooks (hook
)
2049 int count
= SPECPDL_INDEX ();
2050 specbind (Qinhibit_quit
, hook
);
2052 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2054 unbind_to (count
, Qnil
);
2058 /* Number of seconds between polling for input. This is a Lisp
2059 variable that can be bound. */
2061 EMACS_INT polling_period
;
2063 /* Nonzero means polling for input is temporarily suppressed. */
2065 int poll_suppress_count
;
2067 /* Asynchronous timer for polling. */
2069 struct atimer
*poll_timer
;
2072 #ifdef POLL_FOR_INPUT
2074 /* Poll for input, so what we catch a C-g if it comes in. This
2075 function is called from x_make_frame_visible, see comment
2081 if (interrupt_input_blocked
== 0
2082 && !waiting_for_input
)
2083 read_avail_input (0);
2086 /* Timer callback function for poll_timer. TIMER is equal to
2090 poll_for_input (timer
)
2091 struct atimer
*timer
;
2093 if (poll_suppress_count
== 0)
2095 interrupt_input_pending
= 1;
2097 poll_for_input_1 ();
2101 #endif /* POLL_FOR_INPUT */
2103 /* Begin signals to poll for input, if they are appropriate.
2104 This function is called unconditionally from various places. */
2109 #ifdef POLL_FOR_INPUT
2110 if (read_socket_hook
&& !interrupt_input
)
2112 /* Turn alarm handling on unconditionally. It might have
2113 been turned off in process.c. */
2114 turn_on_atimers (1);
2116 /* If poll timer doesn't exist, are we need one with
2117 a different interval, start a new one. */
2118 if (poll_timer
== NULL
2119 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2121 EMACS_TIME interval
;
2124 cancel_atimer (poll_timer
);
2126 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2127 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2128 poll_for_input
, NULL
);
2131 /* Let the timer's callback function poll for input
2132 if this becomes zero. */
2133 --poll_suppress_count
;
2138 /* Nonzero if we are using polling to handle input asynchronously. */
2141 input_polling_used ()
2143 #ifdef POLL_FOR_INPUT
2144 return read_socket_hook
&& !interrupt_input
;
2150 /* Turn off polling. */
2155 #ifdef POLL_FOR_INPUT
2156 if (read_socket_hook
&& !interrupt_input
)
2157 ++poll_suppress_count
;
2161 /* Set the value of poll_suppress_count to COUNT
2162 and start or stop polling accordingly. */
2165 set_poll_suppress_count (count
)
2168 #ifdef POLL_FOR_INPUT
2169 if (count
== 0 && poll_suppress_count
!= 0)
2171 poll_suppress_count
= 1;
2174 else if (count
!= 0 && poll_suppress_count
== 0)
2178 poll_suppress_count
= count
;
2182 /* Bind polling_period to a value at least N.
2183 But don't decrease it. */
2186 bind_polling_period (n
)
2189 #ifdef POLL_FOR_INPUT
2190 int new = polling_period
;
2195 stop_other_atimers (poll_timer
);
2197 specbind (Qpolling_period
, make_number (new));
2198 /* Start a new alarm with the new period. */
2203 /* Apply the control modifier to CHARACTER. */
2209 /* Save the upper bits here. */
2210 int upper
= c
& ~0177;
2214 /* Everything in the columns containing the upper-case letters
2215 denotes a control character. */
2216 if (c
>= 0100 && c
< 0140)
2220 /* Set the shift modifier for a control char
2221 made from a shifted letter. But only for letters! */
2222 if (oc
>= 'A' && oc
<= 'Z')
2223 c
|= shift_modifier
;
2226 /* The lower-case letters denote control characters too. */
2227 else if (c
>= 'a' && c
<= 'z')
2230 /* Include the bits for control and shift
2231 only if the basic ASCII code can't indicate them. */
2235 /* Replace the high bits. */
2236 c
|= (upper
& ~ctrl_modifier
);
2241 /* Display the help-echo property of the character after the mouse pointer.
2242 Either show it in the echo area, or call show-help-function to display
2243 it by other means (maybe in a tooltip).
2245 If HELP is nil, that means clear the previous help echo.
2247 If HELP is a string, display that string. If HELP is a function,
2248 call it with OBJECT and POS as arguments; the function should
2249 return a help string or nil for none. For all other types of HELP,
2250 evaluate it to obtain a string.
2252 WINDOW is the window in which the help was generated, if any.
2253 It is nil if not in a window.
2255 If OBJECT is a buffer, POS is the position in the buffer where the
2256 `help-echo' text property was found.
2258 If OBJECT is an overlay, that overlay has a `help-echo' property,
2259 and POS is the position in the overlay's buffer under the mouse.
2261 If OBJECT is a string (an overlay string or a string displayed with
2262 the `display' property). POS is the position in that string under
2265 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2266 echo overwrites a keystroke echo currently displayed in the echo
2269 Note: this function may only be called with HELP nil or a string
2270 from X code running asynchronously. */
2273 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2274 Lisp_Object help
, window
, object
, pos
;
2275 int ok_to_overwrite_keystroke_echo
;
2277 if (!NILP (help
) && !STRINGP (help
))
2279 if (FUNCTIONP (help
))
2281 Lisp_Object args
[4];
2286 help
= safe_call (4, args
);
2289 help
= safe_eval (help
);
2291 if (!STRINGP (help
))
2296 if (!noninteractive
&& STRINGP (help
))
2297 help
= call1 (Qmouse_fixup_help_message
, help
);
2300 if (STRINGP (help
) || NILP (help
))
2302 if (!NILP (Vshow_help_function
))
2303 call1 (Vshow_help_function
, help
);
2304 else if (/* Don't overwrite minibuffer contents. */
2305 !MINI_WINDOW_P (XWINDOW (selected_window
))
2306 /* Don't overwrite a keystroke echo. */
2307 && (NILP (echo_message_buffer
)
2308 || ok_to_overwrite_keystroke_echo
)
2309 /* Don't overwrite a prompt. */
2310 && !cursor_in_echo_area
)
2314 int count
= SPECPDL_INDEX ();
2316 if (!help_echo_showing_p
)
2317 Vpre_help_message
= current_message ();
2319 specbind (Qmessage_truncate_lines
, Qt
);
2320 message3_nolog (help
, SBYTES (help
),
2321 STRING_MULTIBYTE (help
));
2322 unbind_to (count
, Qnil
);
2324 else if (STRINGP (Vpre_help_message
))
2326 message3_nolog (Vpre_help_message
,
2327 SBYTES (Vpre_help_message
),
2328 STRING_MULTIBYTE (Vpre_help_message
));
2329 Vpre_help_message
= Qnil
;
2335 help_echo_showing_p
= STRINGP (help
);
2341 /* Input of single characters from keyboard */
2343 Lisp_Object
print_help ();
2344 static Lisp_Object
kbd_buffer_get_event ();
2345 static void record_char ();
2348 static jmp_buf wrong_kboard_jmpbuf
;
2351 #define STOP_POLLING \
2352 do { if (! polling_stopped_here) stop_polling (); \
2353 polling_stopped_here = 1; } while (0)
2355 #define RESUME_POLLING \
2356 do { if (polling_stopped_here) start_polling (); \
2357 polling_stopped_here = 0; } while (0)
2359 /* read a character from the keyboard; call the redisplay if needed */
2360 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2361 -1 means do not do redisplay, but do do autosaving.
2364 /* The arguments MAPS and NMAPS are for menu prompting.
2365 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2367 PREV_EVENT is the previous input event, or nil if we are reading
2368 the first event of a key sequence (or not reading a key sequence).
2369 If PREV_EVENT is t, that is a "magic" value that says
2370 not to run input methods, but in other respects to act as if
2371 not reading a key sequence.
2373 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2374 if we used a mouse menu to read the input, or zero otherwise. If
2375 USED_MOUSE_MENU is null, we don't dereference it.
2377 Value is t if we showed a menu and the user rejected it. */
2380 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2384 Lisp_Object prev_event
;
2385 int *used_mouse_menu
;
2387 volatile Lisp_Object c
;
2389 jmp_buf local_getcjmp
;
2391 volatile int key_already_recorded
= 0;
2392 Lisp_Object tem
, save
;
2393 volatile Lisp_Object previous_echo_area_message
;
2394 volatile Lisp_Object also_record
;
2395 volatile int reread
;
2396 struct gcpro gcpro1
, gcpro2
;
2397 int polling_stopped_here
= 0;
2401 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2402 before_command_key_count
= this_command_key_count
;
2403 before_command_echo_length
= echo_length ();
2406 previous_echo_area_message
= Qnil
;
2408 GCPRO2 (c
, previous_echo_area_message
);
2413 if (CONSP (Vunread_post_input_method_events
))
2415 c
= XCAR (Vunread_post_input_method_events
);
2416 Vunread_post_input_method_events
2417 = XCDR (Vunread_post_input_method_events
);
2419 /* Undo what read_char_x_menu_prompt did when it unread
2420 additional keys returned by Fx_popup_menu. */
2422 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2430 if (unread_command_char
!= -1)
2432 XSETINT (c
, unread_command_char
);
2433 unread_command_char
= -1;
2439 if (CONSP (Vunread_command_events
))
2441 c
= XCAR (Vunread_command_events
);
2442 Vunread_command_events
= XCDR (Vunread_command_events
);
2444 /* Undo what read_char_x_menu_prompt did when it unread
2445 additional keys returned by Fx_popup_menu. */
2447 && EQ (XCDR (c
), Qdisabled
)
2448 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2451 /* If the queued event is something that used the mouse,
2452 set used_mouse_menu accordingly. */
2454 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2455 *used_mouse_menu
= 1;
2458 goto reread_for_input_method
;
2461 if (CONSP (Vunread_input_method_events
))
2463 c
= XCAR (Vunread_input_method_events
);
2464 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2466 /* Undo what read_char_x_menu_prompt did when it unread
2467 additional keys returned by Fx_popup_menu. */
2469 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2473 goto reread_for_input_method
;
2476 this_command_key_count_reset
= 0;
2478 if (!NILP (Vexecuting_kbd_macro
))
2480 /* We set this to Qmacro; since that's not a frame, nobody will
2481 try to switch frames on us, and the selected window will
2484 Since this event came from a macro, it would be misleading to
2485 leave internal_last_event_frame set to wherever the last
2486 real event came from. Normally, a switch-frame event selects
2487 internal_last_event_frame after each command is read, but
2488 events read from a macro should never cause a new frame to be
2490 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2492 /* Exit the macro if we are at the end.
2493 Also, some things replace the macro with t
2494 to force an early exit. */
2495 if (EQ (Vexecuting_kbd_macro
, Qt
)
2496 || executing_kbd_macro_index
>= XFASTINT (Flength (Vexecuting_kbd_macro
)))
2502 c
= Faref (Vexecuting_kbd_macro
, make_number (executing_kbd_macro_index
));
2503 if (STRINGP (Vexecuting_kbd_macro
)
2504 && (XINT (c
) & 0x80) && (XUINT (c
) <= 0xff))
2505 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2507 executing_kbd_macro_index
++;
2512 if (!NILP (unread_switch_frame
))
2514 c
= unread_switch_frame
;
2515 unread_switch_frame
= Qnil
;
2517 /* This event should make it into this_command_keys, and get echoed
2518 again, so we do not set `reread'. */
2522 /* if redisplay was requested */
2523 if (commandflag
>= 0)
2525 /* If there is pending input, process any events which are not
2526 user-visible, such as X selection_request events. */
2528 || detect_input_pending_run_timers (0))
2529 swallow_events (0); /* may clear input_pending */
2531 /* Redisplay if no pending input. */
2532 while (!input_pending
)
2534 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2535 redisplay_preserve_echo_area (5);
2540 /* Normal case: no input arrived during redisplay. */
2543 /* Input arrived and pre-empted redisplay.
2544 Process any events which are not user-visible. */
2546 /* If that cleared input_pending, try again to redisplay. */
2550 /* Message turns off echoing unless more keystrokes turn it on again.
2552 The code in 20.x for the condition was
2554 1. echo_area_glyphs && *echo_area_glyphs
2555 2. && echo_area_glyphs != current_kboard->echobuf
2556 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2558 (1) means there's a current message displayed
2560 (2) means it's not the message from echoing from the current
2563 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2564 is set to a non-null value. This is done in read_char and it is
2565 set to echo_area_glyphs after a call to echo_char. That means
2566 ok_to_echo_at_next_pause is either null or
2567 current_kboard->echobuf with the appropriate current_kboard at
2570 So, condition (3) means in clear text ok_to_echo_at_next_pause
2571 must be either null, or the current message isn't from echoing at
2572 all, or it's from echoing from a different kboard than the
2575 if (/* There currently is something in the echo area. */
2576 !NILP (echo_area_buffer
[0])
2577 && (/* And it's either not from echoing. */
2578 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2579 /* Or it's an echo from a different kboard. */
2580 || echo_kboard
!= current_kboard
2581 /* Or we explicitly allow overwriting whatever there is. */
2582 || ok_to_echo_at_next_pause
== NULL
))
2587 /* Try reading a character via menu prompting in the minibuf.
2588 Try this before the sit-for, because the sit-for
2589 would do the wrong thing if we are supposed to do
2590 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2591 after a mouse event so don't try a minibuf menu. */
2593 if (nmaps
> 0 && INTERACTIVE
2594 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2595 /* Don't bring up a menu if we already have another event. */
2596 && NILP (Vunread_command_events
)
2597 && unread_command_char
< 0
2598 && !detect_input_pending_run_timers (0))
2600 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2603 key_already_recorded
= 1;
2608 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2609 We will do that below, temporarily for short sections of code,
2610 when appropriate. local_getcjmp must be in effect
2611 around any call to sit_for or kbd_buffer_get_event;
2612 it *must not* be in effect when we call redisplay. */
2614 if (_setjmp (local_getcjmp
))
2616 /* We must have saved the outer value of getcjmp here,
2617 so restore it now. */
2618 restore_getcjmp (save_jump
);
2619 XSETINT (c
, quit_char
);
2620 internal_last_event_frame
= selected_frame
;
2621 Vlast_event_frame
= internal_last_event_frame
;
2622 /* If we report the quit char as an event,
2623 don't do so more than once. */
2624 if (!NILP (Vinhibit_quit
))
2629 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2630 if (kb
!= current_kboard
)
2632 Lisp_Object link
= kb
->kbd_queue
;
2633 /* We shouldn't get here if we were in single-kboard mode! */
2638 while (CONSP (XCDR (link
)))
2640 if (!NILP (XCDR (link
)))
2644 kb
->kbd_queue
= Fcons (c
, Qnil
);
2646 XSETCDR (link
, Fcons (c
, Qnil
));
2647 kb
->kbd_queue_has_data
= 1;
2648 current_kboard
= kb
;
2649 /* This is going to exit from read_char
2650 so we had better get rid of this frame's stuff. */
2652 longjmp (wrong_kboard_jmpbuf
, 1);
2659 timer_start_idle ();
2661 /* If in middle of key sequence and minibuffer not active,
2662 start echoing if enough time elapses. */
2664 if (minibuf_level
== 0
2665 && !current_kboard
->immediate_echo
2666 && this_command_key_count
> 0
2668 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2669 && NILP (Fzerop (Vecho_keystrokes
))
2670 && (/* No message. */
2671 NILP (echo_area_buffer
[0])
2672 /* Or empty message. */
2673 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2674 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2675 /* Or already echoing from same kboard. */
2676 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2677 /* Or not echoing before and echoing allowed. */
2678 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2682 /* After a mouse event, start echoing right away.
2683 This is because we are probably about to display a menu,
2684 and we don't want to delay before doing so. */
2685 if (EVENT_HAS_PARAMETERS (prev_event
))
2690 double duration
= extract_float (Vecho_keystrokes
);
2691 sec
= (int) duration
;
2692 usec
= (duration
- sec
) * 1000000;
2693 save_getcjmp (save_jump
);
2694 restore_getcjmp (local_getcjmp
);
2695 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2696 restore_getcjmp (save_jump
);
2698 && ! CONSP (Vunread_command_events
))
2703 /* Maybe auto save due to number of keystrokes. */
2705 if (commandflag
!= 0
2706 && auto_save_interval
> 0
2707 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2708 && !detect_input_pending_run_timers (0))
2710 Fdo_auto_save (Qnil
, Qnil
);
2711 /* Hooks can actually change some buffers in auto save. */
2715 /* Try reading using an X menu.
2716 This is never confused with reading using the minibuf
2717 because the recursive call of read_char in read_char_minibuf_menu_prompt
2718 does not pass on any keymaps. */
2720 if (nmaps
> 0 && INTERACTIVE
2721 && !NILP (prev_event
)
2722 && EVENT_HAS_PARAMETERS (prev_event
)
2723 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2724 && !EQ (XCAR (prev_event
), Qtool_bar
)
2725 /* Don't bring up a menu if we already have another event. */
2726 && NILP (Vunread_command_events
)
2727 && unread_command_char
< 0)
2729 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2731 /* Now that we have read an event, Emacs is not idle. */
2737 /* Maybe autosave and/or garbage collect due to idleness. */
2739 if (INTERACTIVE
&& NILP (c
))
2741 int delay_level
, buffer_size
;
2743 /* Slow down auto saves logarithmically in size of current buffer,
2744 and garbage collect while we're at it. */
2745 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2746 last_non_minibuf_size
= Z
- BEG
;
2747 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2749 while (buffer_size
> 64)
2750 delay_level
++, buffer_size
-= buffer_size
>> 2;
2751 if (delay_level
< 4) delay_level
= 4;
2752 /* delay_level is 4 for files under around 50k, 7 at 100k,
2753 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2755 /* Auto save if enough time goes by without input. */
2756 if (commandflag
!= 0
2757 && num_nonmacro_input_events
> last_auto_save
2758 && INTEGERP (Vauto_save_timeout
)
2759 && XINT (Vauto_save_timeout
) > 0)
2763 save_getcjmp (save_jump
);
2764 restore_getcjmp (local_getcjmp
);
2765 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2767 restore_getcjmp (save_jump
);
2770 && ! CONSP (Vunread_command_events
))
2772 Fdo_auto_save (Qnil
, Qnil
);
2774 /* If we have auto-saved and there is still no input
2775 available, garbage collect if there has been enough
2776 consing going on to make it worthwhile. */
2777 if (!detect_input_pending_run_timers (0)
2778 && consing_since_gc
> gc_cons_threshold
/ 2)
2779 Fgarbage_collect ();
2786 /* If this has become non-nil here, it has been set by a timer
2787 or sentinel or filter. */
2788 if (CONSP (Vunread_command_events
))
2790 c
= XCAR (Vunread_command_events
);
2791 Vunread_command_events
= XCDR (Vunread_command_events
);
2794 /* Read something from current KBOARD's side queue, if possible. */
2798 if (current_kboard
->kbd_queue_has_data
)
2800 if (!CONSP (current_kboard
->kbd_queue
))
2802 c
= XCAR (current_kboard
->kbd_queue
);
2803 current_kboard
->kbd_queue
2804 = XCDR (current_kboard
->kbd_queue
);
2805 if (NILP (current_kboard
->kbd_queue
))
2806 current_kboard
->kbd_queue_has_data
= 0;
2807 input_pending
= readable_events (0);
2808 if (EVENT_HAS_PARAMETERS (c
)
2809 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2810 internal_last_event_frame
= XCAR (XCDR (c
));
2811 Vlast_event_frame
= internal_last_event_frame
;
2816 /* If current_kboard's side queue is empty check the other kboards.
2817 If one of them has data that we have not yet seen here,
2818 switch to it and process the data waiting for it.
2820 Note: if the events queued up for another kboard
2821 have already been seen here, and therefore are not a complete command,
2822 the kbd_queue_has_data field is 0, so we skip that kboard here.
2823 That's to avoid an infinite loop switching between kboards here. */
2824 if (NILP (c
) && !single_kboard
)
2827 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2828 if (kb
->kbd_queue_has_data
)
2830 current_kboard
= kb
;
2831 /* This is going to exit from read_char
2832 so we had better get rid of this frame's stuff. */
2834 longjmp (wrong_kboard_jmpbuf
, 1);
2843 /* Finally, we read from the main queue,
2844 and if that gives us something we can't use yet, we put it on the
2845 appropriate side queue and try again. */
2851 /* Actually read a character, waiting if necessary. */
2852 save_getcjmp (save_jump
);
2853 restore_getcjmp (local_getcjmp
);
2854 timer_start_idle ();
2855 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2856 restore_getcjmp (save_jump
);
2859 if (! NILP (c
) && (kb
!= current_kboard
))
2861 Lisp_Object link
= kb
->kbd_queue
;
2864 while (CONSP (XCDR (link
)))
2866 if (!NILP (XCDR (link
)))
2870 kb
->kbd_queue
= Fcons (c
, Qnil
);
2872 XSETCDR (link
, Fcons (c
, Qnil
));
2873 kb
->kbd_queue_has_data
= 1;
2877 current_kboard
= kb
;
2878 /* This is going to exit from read_char
2879 so we had better get rid of this frame's stuff. */
2881 longjmp (wrong_kboard_jmpbuf
, 1);
2886 /* Terminate Emacs in batch mode if at eof. */
2887 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2888 Fkill_emacs (make_number (1));
2892 /* Add in any extra modifiers, where appropriate. */
2893 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2894 || ((extra_keyboard_modifiers
& 0177) < ' '
2895 && (extra_keyboard_modifiers
& 0177) != 0))
2896 XSETINT (c
, make_ctrl_char (XINT (c
)));
2898 /* Transfer any other modifier bits directly from
2899 extra_keyboard_modifiers to c. Ignore the actual character code
2900 in the low 16 bits of extra_keyboard_modifiers. */
2901 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2911 if (commandflag
>= 0
2912 && !input_pending
&& !detect_input_pending_run_timers (0))
2920 /* Buffer switch events are only for internal wakeups
2921 so don't show them to the user.
2922 Also, don't record a key if we already did. */
2923 if (BUFFERP (c
) || key_already_recorded
)
2926 /* Process special events within read_char
2927 and loop around to read another event. */
2930 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2935 int was_locked
= single_kboard
;
2937 last_input_char
= c
;
2938 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2940 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2941 /* We stopped being idle for this event; undo that. This
2942 prevents automatic window selection (under
2943 mouse_autoselect_window from acting as a real input event, for
2944 example banishing the mouse under mouse-avoidance-mode. */
2945 timer_resume_idle ();
2947 /* Resume allowing input from any kboard, if that was true before. */
2949 any_kboard_state ();
2954 /* Handle things that only apply to characters. */
2957 /* If kbd_buffer_get_event gave us an EOF, return that. */
2961 if ((STRINGP (Vkeyboard_translate_table
)
2962 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2963 || (VECTORP (Vkeyboard_translate_table
)
2964 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2965 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2966 && CHAR_VALID_P (XINT (c
), 0)))
2969 d
= Faref (Vkeyboard_translate_table
, c
);
2970 /* nil in keyboard-translate-table means no translation. */
2976 /* If this event is a mouse click in the menu bar,
2977 return just menu-bar for now. Modify the mouse click event
2978 so we won't do this twice, then queue it up. */
2979 if (EVENT_HAS_PARAMETERS (c
)
2981 && CONSP (EVENT_START (c
))
2982 && CONSP (XCDR (EVENT_START (c
))))
2986 posn
= POSN_POSN (EVENT_START (c
));
2987 /* Handle menu-bar events:
2988 insert the dummy prefix event `menu-bar'. */
2989 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2991 /* Change menu-bar to (menu-bar) as the event "position". */
2992 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2995 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
3000 /* Store these characters into recent_keys, the dribble file if any,
3001 and the keyboard macro being defined, if any. */
3003 if (! NILP (also_record
))
3004 record_char (also_record
);
3006 /* Wipe the echo area.
3007 But first, if we are about to use an input method,
3008 save the echo area contents for it to refer to. */
3010 && ! NILP (Vinput_method_function
)
3011 && (unsigned) XINT (c
) >= ' '
3012 && (unsigned) XINT (c
) != 127
3013 && (unsigned) XINT (c
) < 256)
3015 previous_echo_area_message
= Fcurrent_message ();
3016 Vinput_method_previous_message
= previous_echo_area_message
;
3019 /* Now wipe the echo area, except for help events which do their
3020 own stuff with the echo area. */
3022 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3023 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3025 if (!NILP (echo_area_buffer
[0]))
3026 safe_run_hooks (Qecho_area_clear_hook
);
3027 clear_message (1, 0);
3030 reread_for_input_method
:
3032 /* Pass this to the input method, if appropriate. */
3034 && ! NILP (Vinput_method_function
)
3035 /* Don't run the input method within a key sequence,
3036 after the first event of the key sequence. */
3037 && NILP (prev_event
)
3038 && (unsigned) XINT (c
) >= ' '
3039 && (unsigned) XINT (c
) != 127
3040 && (unsigned) XINT (c
) < 256)
3043 int key_count
, key_count_reset
;
3044 struct gcpro gcpro1
;
3045 int count
= SPECPDL_INDEX ();
3047 /* Save the echo status. */
3048 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3049 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3050 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3051 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3054 if (before_command_restore_flag
)
3056 this_command_key_count
= before_command_key_count_1
;
3057 if (this_command_key_count
< this_single_command_key_start
)
3058 this_single_command_key_start
= this_command_key_count
;
3059 echo_truncate (before_command_echo_length_1
);
3060 before_command_restore_flag
= 0;
3064 /* Save the this_command_keys status. */
3065 key_count
= this_command_key_count
;
3066 key_count_reset
= this_command_key_count_reset
;
3069 keys
= Fcopy_sequence (this_command_keys
);
3074 /* Clear out this_command_keys. */
3075 this_command_key_count
= 0;
3076 this_command_key_count_reset
= 0;
3078 /* Now wipe the echo area. */
3079 if (!NILP (echo_area_buffer
[0]))
3080 safe_run_hooks (Qecho_area_clear_hook
);
3081 clear_message (1, 0);
3084 /* If we are not reading a key sequence,
3085 never use the echo area. */
3088 specbind (Qinput_method_use_echo_area
, Qt
);
3091 /* Call the input method. */
3092 tem
= call1 (Vinput_method_function
, c
);
3094 tem
= unbind_to (count
, tem
);
3096 /* Restore the saved echoing state
3097 and this_command_keys state. */
3098 this_command_key_count
= key_count
;
3099 this_command_key_count_reset
= key_count_reset
;
3101 this_command_keys
= keys
;
3104 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3105 current_kboard
->echo_string
= saved_echo_string
;
3106 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3107 if (saved_immediate_echo
)
3112 /* The input method can return no events. */
3115 /* Bring back the previous message, if any. */
3116 if (! NILP (previous_echo_area_message
))
3117 message_with_string ("%s", previous_echo_area_message
, 0);
3120 /* It returned one event or more. */
3122 Vunread_post_input_method_events
3123 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3128 /* Display help if not echoing. */
3129 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3131 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3132 Lisp_Object help
, object
, position
, window
, tem
;
3134 tem
= Fcdr (XCDR (c
));
3137 window
= Fcar (tem
);
3139 object
= Fcar (tem
);
3141 position
= Fcar (tem
);
3143 show_help_echo (help
, window
, object
, position
, 0);
3145 /* We stopped being idle for this event; undo that. */
3146 timer_resume_idle ();
3150 if (! reread
|| this_command_key_count
== 0
3151 || this_command_key_count_reset
)
3154 /* Don't echo mouse motion events. */
3155 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3156 && NILP (Fzerop (Vecho_keystrokes
))
3157 && ! (EVENT_HAS_PARAMETERS (c
)
3158 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3161 if (! NILP (also_record
))
3162 echo_char (also_record
);
3163 /* Once we reread a character, echoing can happen
3164 the next time we pause to read a new one. */
3165 ok_to_echo_at_next_pause
= current_kboard
;
3168 /* Record this character as part of the current key. */
3169 add_command_key (c
);
3170 if (! NILP (also_record
))
3171 add_command_key (also_record
);
3174 last_input_char
= c
;
3177 /* Process the help character specially if enabled */
3178 if (!NILP (Vhelp_form
) && help_char_p (c
))
3181 count
= SPECPDL_INDEX ();
3183 record_unwind_protect (Fset_window_configuration
,
3184 Fcurrent_window_configuration (Qnil
));
3186 tem0
= Feval (Vhelp_form
);
3188 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3192 c
= read_char (0, 0, 0, Qnil
, 0);
3193 while (BUFFERP (c
));
3194 /* Remove the help from the frame */
3195 unbind_to (count
, Qnil
);
3198 if (EQ (c
, make_number (040)))
3202 c
= read_char (0, 0, 0, Qnil
, 0);
3203 while (BUFFERP (c
));
3212 /* Record a key that came from a mouse menu.
3213 Record it for echoing, for this-command-keys, and so on. */
3219 /* Wipe the echo area. */
3220 clear_message (1, 0);
3225 before_command_key_count
= this_command_key_count
;
3226 before_command_echo_length
= echo_length ();
3229 /* Don't echo mouse motion events. */
3230 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3231 && NILP (Fzerop (Vecho_keystrokes
)))
3235 /* Once we reread a character, echoing can happen
3236 the next time we pause to read a new one. */
3237 ok_to_echo_at_next_pause
= 0;
3240 /* Record this character as part of the current key. */
3241 add_command_key (c
);
3243 /* Re-reading in the middle of a command */
3244 last_input_char
= c
;
3248 /* Return 1 if should recognize C as "the help character". */
3256 if (EQ (c
, Vhelp_char
))
3258 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3259 if (EQ (c
, XCAR (tail
)))
3264 /* Record the input event C in various ways. */
3272 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3274 /* To avoid filling recent_keys with help-echo and mouse-movement
3275 events, we filter out repeated help-echo events, only store the
3276 first and last in a series of mouse-movement events, and don't
3277 store repeated help-echo events which are only separated by
3278 mouse-movement events. */
3280 Lisp_Object ev1
, ev2
, ev3
;
3283 if ((ix1
= recent_keys_index
- 1) < 0)
3284 ix1
= NUM_RECENT_KEYS
- 1;
3285 ev1
= AREF (recent_keys
, ix1
);
3287 if ((ix2
= ix1
- 1) < 0)
3288 ix2
= NUM_RECENT_KEYS
- 1;
3289 ev2
= AREF (recent_keys
, ix2
);
3291 if ((ix3
= ix2
- 1) < 0)
3292 ix3
= NUM_RECENT_KEYS
- 1;
3293 ev3
= AREF (recent_keys
, ix3
);
3295 if (EQ (XCAR (c
), Qhelp_echo
))
3297 /* Don't record `help-echo' in recent_keys unless it shows some help
3298 message, and a different help than the previously recorded
3300 Lisp_Object help
, last_help
;
3302 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3303 if (!STRINGP (help
))
3305 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3306 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3308 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3309 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3310 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3312 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3313 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3314 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3315 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3318 else if (EQ (XCAR (c
), Qmouse_movement
))
3320 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3321 So additional mouse movement events replace the last element. */
3322 Lisp_Object last_window
, window
;
3324 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3325 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3326 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3327 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3328 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3330 ASET (recent_keys
, ix1
, c
);
3336 store_kbd_macro_char (c
);
3341 ASET (recent_keys
, recent_keys_index
, c
);
3342 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3343 recent_keys_index
= 0;
3345 else if (recorded
< 0)
3347 /* We need to remove one or two events from recent_keys.
3348 To do this, we simply put nil at those events and move the
3349 recent_keys_index backwards over those events. Usually,
3350 users will never see those nil events, as they will be
3351 overwritten by the command keys entered to see recent_keys
3354 while (recorded
++ < 0 && total_keys
> 0)
3356 if (total_keys
< NUM_RECENT_KEYS
)
3358 if (--recent_keys_index
< 0)
3359 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3360 ASET (recent_keys
, recent_keys_index
, Qnil
);
3364 num_nonmacro_input_events
++;
3366 /* Write c to the dribble file. If c is a lispy event, write
3367 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3368 If you, dear reader, have a better idea, you've got the source. :-) */
3373 if (XUINT (c
) < 0x100)
3374 putc (XINT (c
), dribble
);
3376 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3380 Lisp_Object dribblee
;
3382 /* If it's a structured event, take the event header. */
3383 dribblee
= EVENT_HEAD (c
);
3385 if (SYMBOLP (dribblee
))
3387 putc ('<', dribble
);
3388 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3389 SBYTES (SYMBOL_NAME (dribblee
)),
3391 putc ('>', dribble
);
3403 struct buffer
*old
= current_buffer
;
3404 Fprinc (object
, Qnil
);
3405 set_buffer_internal (XBUFFER (Vstandard_output
));
3406 call0 (intern ("help-mode"));
3407 set_buffer_internal (old
);
3411 /* Copy out or in the info on where C-g should throw to.
3412 This is used when running Lisp code from within get_char,
3413 in case get_char is called recursively.
3414 See read_process_output. */
3420 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3424 restore_getcjmp (temp
)
3427 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3432 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3433 of this function. */
3436 tracking_off (old_value
)
3437 Lisp_Object old_value
;
3439 do_mouse_tracking
= old_value
;
3440 if (NILP (old_value
))
3442 /* Redisplay may have been preempted because there was input
3443 available, and it assumes it will be called again after the
3444 input has been processed. If the only input available was
3445 the sort that we have just disabled, then we need to call
3447 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3449 redisplay_preserve_echo_area (6);
3450 get_input_pending (&input_pending
,
3451 READABLE_EVENTS_DO_TIMERS_NOW
);
3457 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3458 doc
: /* Evaluate BODY with mouse movement events enabled.
3459 Within a `track-mouse' form, mouse motion generates input events that
3460 you can read with `read-event'.
3461 Normally, mouse motion is ignored.
3462 usage: (track-mouse BODY ...) */)
3466 int count
= SPECPDL_INDEX ();
3469 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3471 do_mouse_tracking
= Qt
;
3473 val
= Fprogn (args
);
3474 return unbind_to (count
, val
);
3477 /* If mouse has moved on some frame, return one of those frames.
3478 Return 0 otherwise. */
3483 Lisp_Object tail
, frame
;
3485 FOR_EACH_FRAME (tail
, frame
)
3487 if (XFRAME (frame
)->mouse_moved
)
3488 return XFRAME (frame
);
3494 #endif /* HAVE_MOUSE */
3496 /* Low level keyboard/mouse input.
3497 kbd_buffer_store_event places events in kbd_buffer, and
3498 kbd_buffer_get_event retrieves them. */
3500 /* Return true iff there are any events in the queue that read-char
3501 would return. If this returns false, a read-char would block. */
3503 readable_events (flags
)
3506 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3509 /* If the buffer contains only FOCUS_IN_EVENT events, and
3510 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3511 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3513 if (flags
& (READABLE_EVENTS_FILTER_EVENTS
3514 #ifdef USE_TOOLKIT_SCROLL_BARS
3515 | READABLE_EVENTS_IGNORE_SQUEEZABLES
3519 struct input_event
*event
;
3521 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3528 #ifdef USE_TOOLKIT_SCROLL_BARS
3529 (flags
& READABLE_EVENTS_FILTER_EVENTS
) &&
3531 event
->kind
== FOCUS_IN_EVENT
)
3532 #ifdef USE_TOOLKIT_SCROLL_BARS
3533 && !((flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3534 && event
->kind
== SCROLL_BAR_CLICK_EVENT
3535 && event
->part
== scroll_bar_handle
3536 && event
->modifiers
== 0)
3541 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3544 while (event
!= kbd_store_ptr
);
3551 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3552 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3557 if (current_kboard
->kbd_queue_has_data
)
3563 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3564 if (kb
->kbd_queue_has_data
)
3570 /* Set this for debugging, to have a way to get out */
3575 event_to_kboard (event
)
3576 struct input_event
*event
;
3579 frame
= event
->frame_or_window
;
3581 frame
= XCAR (frame
);
3582 else if (WINDOWP (frame
))
3583 frame
= WINDOW_FRAME (XWINDOW (frame
));
3585 /* There are still some events that don't set this field.
3586 For now, just ignore the problem.
3587 Also ignore dead frames here. */
3588 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3591 return FRAME_KBOARD (XFRAME (frame
));
3596 Lisp_Object Vthrow_on_input
;
3598 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3601 kbd_buffer_store_event (event
)
3602 register struct input_event
*event
;
3604 kbd_buffer_store_event_hold (event
, 0);
3607 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3609 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3610 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3611 Else, if EVENT is a quit event, store the quit event
3612 in HOLD_QUIT, and return (thus ignoring further events).
3614 This is used in read_avail_input to postpone the processing
3615 of the quit event until all subsequent input events have been
3616 parsed (and discarded).
3620 kbd_buffer_store_event_hold (event
, hold_quit
)
3621 register struct input_event
*event
;
3622 struct input_event
*hold_quit
;
3624 if (event
->kind
== NO_EVENT
)
3627 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3630 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3632 register int c
= event
->code
& 0377;
3634 if (event
->modifiers
& ctrl_modifier
)
3635 c
= make_ctrl_char (c
);
3637 c
|= (event
->modifiers
3638 & (meta_modifier
| alt_modifier
3639 | hyper_modifier
| super_modifier
));
3645 struct input_event
*sp
;
3648 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3649 kb
!= current_kboard
))
3652 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3653 Fcons (make_number (c
), Qnil
));
3654 kb
->kbd_queue_has_data
= 1;
3655 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3657 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3660 if (event_to_kboard (sp
) == kb
)
3662 sp
->kind
= NO_EVENT
;
3663 sp
->frame_or_window
= Qnil
;
3673 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3677 /* If this results in a quit_char being returned to Emacs as
3678 input, set Vlast_event_frame properly. If this doesn't
3679 get returned to Emacs as an event, the next event read
3680 will set Vlast_event_frame again, so this is safe to do. */
3684 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3686 focus
= event
->frame_or_window
;
3687 internal_last_event_frame
= focus
;
3688 Vlast_event_frame
= focus
;
3691 last_event_timestamp
= event
->timestamp
;
3692 interrupt_signal (0 /* dummy */);
3696 if (c
&& c
== stop_character
)
3702 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3703 Just ignore the second one. */
3704 else if (event
->kind
== BUFFER_SWITCH_EVENT
3705 && kbd_fetch_ptr
!= kbd_store_ptr
3706 && ((kbd_store_ptr
== kbd_buffer
3707 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3708 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3711 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3712 kbd_store_ptr
= kbd_buffer
;
3714 /* Don't let the very last slot in the buffer become full,
3715 since that would make the two pointers equal,
3716 and that is indistinguishable from an empty buffer.
3717 Discard the event if it would fill the last slot. */
3718 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3720 *kbd_store_ptr
= *event
;
3724 /* If we're inside while-no-input, and this event qualifies
3725 as input, set quit-flag to cause an interrupt. */
3726 if (!NILP (Vthrow_on_input
)
3727 && event
->kind
!= FOCUS_IN_EVENT
3728 && event
->kind
!= HELP_EVENT
3729 && event
->kind
!= DEICONIFY_EVENT
)
3731 Vquit_flag
= Vthrow_on_input
;
3732 /* If we're inside a function that wants immediate quits,
3734 if (immediate_quit
&& NILP (Vinhibit_quit
))
3744 /* Put an input event back in the head of the event queue. */
3747 kbd_buffer_unget_event (event
)
3748 register struct input_event
*event
;
3750 if (kbd_fetch_ptr
== kbd_buffer
)
3751 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3753 /* Don't let the very last slot in the buffer become full, */
3754 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3757 *kbd_fetch_ptr
= *event
;
3762 /* Generate HELP_EVENT input_events in BUFP which has room for
3763 SIZE events. If there's not enough room in BUFP, ignore this
3766 HELP is the help form.
3768 FRAME is the frame on which the help is generated. OBJECT is the
3769 Lisp object where the help was found (a buffer, a string, an
3770 overlay, or nil if neither from a string nor from a buffer. POS is
3771 the position within OBJECT where the help was found.
3773 Value is the number of input_events generated. */
3776 gen_help_event (help
, frame
, window
, object
, pos
)
3777 Lisp_Object help
, frame
, object
, window
;
3780 struct input_event event
;
3784 event
.kind
= HELP_EVENT
;
3785 event
.frame_or_window
= frame
;
3787 event
.x
= WINDOWP (window
) ? window
: frame
;
3790 kbd_buffer_store_event (&event
);
3794 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3797 kbd_buffer_store_help_event (frame
, help
)
3798 Lisp_Object frame
, help
;
3800 struct input_event event
;
3802 event
.kind
= HELP_EVENT
;
3803 event
.frame_or_window
= frame
;
3808 kbd_buffer_store_event (&event
);
3812 /* Discard any mouse events in the event buffer by setting them to
3815 discard_mouse_events ()
3817 struct input_event
*sp
;
3818 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3820 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3823 if (sp
->kind
== MOUSE_CLICK_EVENT
3824 || sp
->kind
== WHEEL_EVENT
3826 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3828 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3830 sp
->kind
= NO_EVENT
;
3836 /* Return non-zero if there are any real events waiting in the event
3837 buffer, not counting `NO_EVENT's.
3839 If DISCARD is non-zero, discard NO_EVENT events at the front of
3840 the input queue, possibly leaving the input queue empty if there
3841 are no real input events. */
3844 kbd_buffer_events_waiting (discard
)
3847 struct input_event
*sp
;
3849 for (sp
= kbd_fetch_ptr
;
3850 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3853 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3860 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3864 /* Clear input event EVENT. */
3868 struct input_event
*event
;
3870 event
->kind
= NO_EVENT
;
3874 /* Read one event from the event buffer, waiting if necessary.
3875 The value is a Lisp object representing the event.
3876 The value is nil for an event that should be ignored,
3877 or that was handled here.
3878 We always read and discard one event. */
3881 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3883 int *used_mouse_menu
;
3892 *kbp
= current_kboard
;
3896 /* Wait until there is input available. */
3899 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3902 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3906 /* If the quit flag is set, then read_char will return
3907 quit_char, so that counts as "available input." */
3908 if (!NILP (Vquit_flag
))
3909 quit_throw_to_read_char ();
3911 /* One way or another, wait until input is available; then, if
3912 interrupt handlers have not read it, read it now. */
3915 wait_for_kbd_input ();
3917 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3921 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3924 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3928 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3930 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3931 /* Pass 1 for EXPECT since we just waited to have input. */
3932 read_avail_input (1);
3934 #endif /* not VMS */
3937 if (CONSP (Vunread_command_events
))
3940 first
= XCAR (Vunread_command_events
);
3941 Vunread_command_events
= XCDR (Vunread_command_events
);
3942 *kbp
= current_kboard
;
3946 /* At this point, we know that there is a readable event available
3947 somewhere. If the event queue is empty, then there must be a
3948 mouse movement enabled and available. */
3949 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3951 struct input_event
*event
;
3953 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3957 last_event_timestamp
= event
->timestamp
;
3960 *kbp
= event_to_kboard (event
);
3962 *kbp
= current_kboard
; /* Better than returning null ptr? */
3964 *kbp
= &the_only_kboard
;
3969 /* These two kinds of events get special handling
3970 and don't actually appear to the command loop.
3971 We return nil for them. */
3972 if (event
->kind
== SELECTION_REQUEST_EVENT
3973 || event
->kind
== SELECTION_CLEAR_EVENT
)
3976 struct input_event copy
;
3978 /* Remove it from the buffer before processing it,
3979 since otherwise swallow_events will see it
3980 and process it again. */
3982 kbd_fetch_ptr
= event
+ 1;
3983 input_pending
= readable_events (0);
3984 x_handle_selection_event (©
);
3986 /* We're getting selection request events, but we don't have
3992 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3993 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3995 /* Make an event (delete-frame (FRAME)). */
3996 obj
= Fcons (event
->frame_or_window
, Qnil
);
3997 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
3998 kbd_fetch_ptr
= event
+ 1;
4001 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
4002 else if (event
->kind
== ICONIFY_EVENT
)
4004 /* Make an event (iconify-frame (FRAME)). */
4005 obj
= Fcons (event
->frame_or_window
, Qnil
);
4006 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
4007 kbd_fetch_ptr
= event
+ 1;
4009 else if (event
->kind
== DEICONIFY_EVENT
)
4011 /* Make an event (make-frame-visible (FRAME)). */
4012 obj
= Fcons (event
->frame_or_window
, Qnil
);
4013 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
4014 kbd_fetch_ptr
= event
+ 1;
4017 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
4019 /* The value doesn't matter here; only the type is tested. */
4020 XSETBUFFER (obj
, current_buffer
);
4021 kbd_fetch_ptr
= event
+ 1;
4023 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4024 || defined (USE_GTK)
4025 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4027 kbd_fetch_ptr
= event
+ 1;
4028 input_pending
= readable_events (0);
4029 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4030 x_activate_menubar (XFRAME (event
->frame_or_window
));
4033 #if defined (WINDOWSNT) || defined (MAC_OS)
4034 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4037 /* Make an event (language-change (KEY_SCRIPT)). */
4038 obj
= Fcons (make_number (event
->code
), Qnil
);
4040 /* Make an event (language-change (FRAME CHARSET LCID)). */
4041 obj
= Fcons (event
->frame_or_window
, Qnil
);
4043 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4044 kbd_fetch_ptr
= event
+ 1;
4047 else if (event
->kind
== SAVE_SESSION_EVENT
)
4049 obj
= Fcons (Qsave_session
, Qnil
);
4050 kbd_fetch_ptr
= event
+ 1;
4052 /* Just discard these, by returning nil.
4053 With MULTI_KBOARD, these events are used as placeholders
4054 when we need to randomly delete events from the queue.
4055 (They shouldn't otherwise be found in the buffer,
4056 but on some machines it appears they do show up
4057 even without MULTI_KBOARD.) */
4058 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4059 mouse events during a popup-menu call. */
4060 else if (event
->kind
== NO_EVENT
)
4061 kbd_fetch_ptr
= event
+ 1;
4062 else if (event
->kind
== HELP_EVENT
)
4064 Lisp_Object object
, position
, help
, frame
, window
;
4066 frame
= event
->frame_or_window
;
4067 object
= event
->arg
;
4068 position
= make_number (event
->code
);
4071 clear_event (event
);
4073 kbd_fetch_ptr
= event
+ 1;
4074 if (!WINDOWP (window
))
4076 obj
= Fcons (Qhelp_echo
,
4077 list5 (frame
, help
, window
, object
, position
));
4079 else if (event
->kind
== FOCUS_IN_EVENT
)
4081 /* Notification of a FocusIn event. The frame receiving the
4082 focus is in event->frame_or_window. Generate a
4083 switch-frame event if necessary. */
4084 Lisp_Object frame
, focus
;
4086 frame
= event
->frame_or_window
;
4087 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4091 if (!EQ (frame
, internal_last_event_frame
)
4092 && !EQ (frame
, selected_frame
))
4093 obj
= make_lispy_switch_frame (frame
);
4094 internal_last_event_frame
= frame
;
4095 kbd_fetch_ptr
= event
+ 1;
4099 /* If this event is on a different frame, return a switch-frame this
4100 time, and leave the event in the queue for next time. */
4104 frame
= event
->frame_or_window
;
4106 frame
= XCAR (frame
);
4107 else if (WINDOWP (frame
))
4108 frame
= WINDOW_FRAME (XWINDOW (frame
));
4110 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4114 if (! EQ (frame
, internal_last_event_frame
)
4115 && !EQ (frame
, selected_frame
))
4116 obj
= make_lispy_switch_frame (frame
);
4117 internal_last_event_frame
= frame
;
4119 /* If we didn't decide to make a switch-frame event, go ahead
4120 and build a real event from the queue entry. */
4124 obj
= make_lispy_event (event
);
4126 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4127 || defined (USE_GTK)
4128 /* If this was a menu selection, then set the flag to inhibit
4129 writing to last_nonmenu_event. Don't do this if the event
4130 we're returning is (menu-bar), though; that indicates the
4131 beginning of the menu sequence, and we might as well leave
4132 that as the `event with parameters' for this selection. */
4134 && !EQ (event
->frame_or_window
, event
->arg
)
4135 && (event
->kind
== MENU_BAR_EVENT
4136 || event
->kind
== TOOL_BAR_EVENT
))
4137 *used_mouse_menu
= 1;
4140 /* Wipe out this event, to catch bugs. */
4141 clear_event (event
);
4142 kbd_fetch_ptr
= event
+ 1;
4147 /* Try generating a mouse motion event. */
4148 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4150 FRAME_PTR f
= some_mouse_moved ();
4151 Lisp_Object bar_window
;
4152 enum scroll_bar_part part
;
4156 *kbp
= current_kboard
;
4157 /* Note that this uses F to determine which display to look at.
4158 If there is no valid info, it does not store anything
4159 so x remains nil. */
4161 (*mouse_position_hook
) (&f
, 0, &bar_window
, &part
, &x
, &y
, &time
);
4165 /* Decide if we should generate a switch-frame event. Don't
4166 generate switch-frame events for motion outside of all Emacs
4172 frame
= FRAME_FOCUS_FRAME (f
);
4174 XSETFRAME (frame
, f
);
4176 if (! EQ (frame
, internal_last_event_frame
)
4177 && !EQ (frame
, selected_frame
))
4178 obj
= make_lispy_switch_frame (frame
);
4179 internal_last_event_frame
= frame
;
4182 /* If we didn't decide to make a switch-frame event, go ahead and
4183 return a mouse-motion event. */
4184 if (!NILP (x
) && NILP (obj
))
4185 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4187 #endif /* HAVE_MOUSE */
4189 /* We were promised by the above while loop that there was
4190 something for us to read! */
4193 input_pending
= readable_events (0);
4195 Vlast_event_frame
= internal_last_event_frame
;
4200 /* Process any events that are not user-visible,
4201 then return, without reading any user-visible events. */
4204 swallow_events (do_display
)
4209 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4211 struct input_event
*event
;
4213 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4217 last_event_timestamp
= event
->timestamp
;
4219 /* These two kinds of events get special handling
4220 and don't actually appear to the command loop. */
4221 if (event
->kind
== SELECTION_REQUEST_EVENT
4222 || event
->kind
== SELECTION_CLEAR_EVENT
)
4225 struct input_event copy
;
4227 /* Remove it from the buffer before processing it,
4228 since otherwise swallow_events called recursively could see it
4229 and process it again. */
4231 kbd_fetch_ptr
= event
+ 1;
4232 input_pending
= readable_events (0);
4233 x_handle_selection_event (©
);
4235 /* We're getting selection request events, but we don't have
4244 old_timers_run
= timers_run
;
4245 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4247 if (timers_run
!= old_timers_run
&& do_display
)
4248 redisplay_preserve_echo_area (7);
4251 /* Record the start of when Emacs is idle,
4252 for the sake of running idle-time timers. */
4259 /* If we are already in the idle state, do nothing. */
4260 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4263 EMACS_GET_TIME (timer_idleness_start_time
);
4265 timer_last_idleness_start_time
= timer_idleness_start_time
;
4267 /* Mark all idle-time timers as once again candidates for running. */
4268 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4272 timer
= XCAR (timers
);
4274 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4276 XVECTOR (timer
)->contents
[0] = Qnil
;
4280 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4285 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4288 /* Resume idle timer from last idle start time. */
4291 timer_resume_idle ()
4293 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4296 timer_idleness_start_time
= timer_last_idleness_start_time
;
4299 /* This is only for debugging. */
4300 struct input_event last_timer_event
;
4302 /* Check whether a timer has fired. To prevent larger problems we simply
4303 disregard elements that are not proper timers. Do not make a circular
4304 timer list for the time being.
4306 Returns the number of seconds to wait until the next timer fires. If a
4307 timer is triggering now, return zero seconds.
4308 If no timer is active, return -1 seconds.
4310 If a timer is ripe, we run it, with quitting turned off.
4312 DO_IT_NOW is now ignored. It used to mean that we should
4313 run the timer directly instead of queueing a timer-event.
4314 Now we always run timers directly. */
4317 timer_check (do_it_now
)
4320 EMACS_TIME nexttime
;
4321 EMACS_TIME now
, idleness_now
;
4322 Lisp_Object timers
, idle_timers
, chosen_timer
;
4323 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4325 EMACS_SET_SECS (nexttime
, -1);
4326 EMACS_SET_USECS (nexttime
, -1);
4328 /* Always consider the ordinary timers. */
4329 timers
= Vtimer_list
;
4330 /* Consider the idle timers only if Emacs is idle. */
4331 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4332 idle_timers
= Vtimer_idle_list
;
4335 chosen_timer
= Qnil
;
4336 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4338 if (CONSP (timers
) || CONSP (idle_timers
))
4340 EMACS_GET_TIME (now
);
4341 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4342 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4345 while (CONSP (timers
) || CONSP (idle_timers
))
4347 Lisp_Object
*vector
;
4348 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4349 EMACS_TIME timer_time
, idle_timer_time
;
4350 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4352 /* Skip past invalid timers and timers already handled. */
4355 timer
= XCAR (timers
);
4356 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4358 timers
= XCDR (timers
);
4361 vector
= XVECTOR (timer
)->contents
;
4363 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4364 || !INTEGERP (vector
[3])
4365 || ! NILP (vector
[0]))
4367 timers
= XCDR (timers
);
4371 if (!NILP (idle_timers
))
4373 timer
= XCAR (idle_timers
);
4374 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4376 idle_timers
= XCDR (idle_timers
);
4379 vector
= XVECTOR (timer
)->contents
;
4381 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4382 || !INTEGERP (vector
[3])
4383 || ! NILP (vector
[0]))
4385 idle_timers
= XCDR (idle_timers
);
4390 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4391 based on the next ordinary timer.
4392 TIMER_DIFFERENCE is the distance in time from NOW to when
4393 this timer becomes ripe (negative if it's already ripe). */
4396 timer
= XCAR (timers
);
4397 vector
= XVECTOR (timer
)->contents
;
4398 EMACS_SET_SECS (timer_time
,
4399 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4400 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4401 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4404 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4405 based on the next idle timer. */
4406 if (!NILP (idle_timers
))
4408 idle_timer
= XCAR (idle_timers
);
4409 vector
= XVECTOR (idle_timer
)->contents
;
4410 EMACS_SET_SECS (idle_timer_time
,
4411 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4412 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4413 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4416 /* Decide which timer is the next timer,
4417 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4418 Also step down the list where we found that timer. */
4420 if (! NILP (timers
) && ! NILP (idle_timers
))
4423 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4424 if (EMACS_TIME_NEG_P (temp
))
4426 chosen_timer
= timer
;
4427 timers
= XCDR (timers
);
4428 difference
= timer_difference
;
4432 chosen_timer
= idle_timer
;
4433 idle_timers
= XCDR (idle_timers
);
4434 difference
= idle_timer_difference
;
4437 else if (! NILP (timers
))
4439 chosen_timer
= timer
;
4440 timers
= XCDR (timers
);
4441 difference
= timer_difference
;
4445 chosen_timer
= idle_timer
;
4446 idle_timers
= XCDR (idle_timers
);
4447 difference
= idle_timer_difference
;
4449 vector
= XVECTOR (chosen_timer
)->contents
;
4451 /* If timer is ripe, run it if it hasn't been run. */
4452 if (EMACS_TIME_NEG_P (difference
)
4453 || (EMACS_SECS (difference
) == 0
4454 && EMACS_USECS (difference
) == 0))
4456 if (NILP (vector
[0]))
4458 int was_locked
= single_kboard
;
4459 int count
= SPECPDL_INDEX ();
4460 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4462 /* Mark the timer as triggered to prevent problems if the lisp
4463 code fails to reschedule it right. */
4466 specbind (Qinhibit_quit
, Qt
);
4468 call1 (Qtimer_event_handler
, chosen_timer
);
4469 Vdeactivate_mark
= old_deactivate_mark
;
4471 unbind_to (count
, Qnil
);
4473 /* Resume allowing input from any kboard, if that was true before. */
4475 any_kboard_state ();
4477 /* Since we have handled the event,
4478 we don't need to tell the caller to wake up and do it. */
4482 /* When we encounter a timer that is still waiting,
4483 return the amount of time to wait before it is ripe. */
4490 /* No timers are pending in the future. */
4491 /* Return 0 if we generated an event, and -1 if not. */
4496 /* Caches for modify_event_symbol. */
4497 static Lisp_Object accent_key_syms
;
4498 static Lisp_Object func_key_syms
;
4499 static Lisp_Object mouse_syms
;
4500 static Lisp_Object wheel_syms
;
4501 static Lisp_Object drag_n_drop_syms
;
4503 /* This is a list of keysym codes for special "accent" characters.
4504 It parallels lispy_accent_keys. */
4506 static int lispy_accent_codes
[] =
4508 #ifdef XK_dead_circumflex
4513 #ifdef XK_dead_grave
4518 #ifdef XK_dead_tilde
4523 #ifdef XK_dead_diaeresis
4528 #ifdef XK_dead_macron
4533 #ifdef XK_dead_degree
4538 #ifdef XK_dead_acute
4543 #ifdef XK_dead_cedilla
4548 #ifdef XK_dead_breve
4553 #ifdef XK_dead_ogonek
4558 #ifdef XK_dead_caron
4563 #ifdef XK_dead_doubleacute
4564 XK_dead_doubleacute
,
4568 #ifdef XK_dead_abovedot
4573 #ifdef XK_dead_abovering
4583 #ifdef XK_dead_belowdot
4588 #ifdef XK_dead_voiced_sound
4589 XK_dead_voiced_sound
,
4593 #ifdef XK_dead_semivoiced_sound
4594 XK_dead_semivoiced_sound
,
4610 /* This is a list of Lisp names for special "accent" characters.
4611 It parallels lispy_accent_codes. */
4613 static char *lispy_accent_keys
[] =
4631 "dead-voiced-sound",
4632 "dead-semivoiced-sound",
4638 #define FUNCTION_KEY_OFFSET 0x0
4640 char *lispy_function_keys
[] =
4644 0, /* VK_LBUTTON 0x01 */
4645 0, /* VK_RBUTTON 0x02 */
4646 "cancel", /* VK_CANCEL 0x03 */
4647 0, /* VK_MBUTTON 0x04 */
4649 0, 0, 0, /* 0x05 .. 0x07 */
4651 "backspace", /* VK_BACK 0x08 */
4652 "tab", /* VK_TAB 0x09 */
4654 0, 0, /* 0x0A .. 0x0B */
4656 "clear", /* VK_CLEAR 0x0C */
4657 "return", /* VK_RETURN 0x0D */
4659 0, 0, /* 0x0E .. 0x0F */
4661 0, /* VK_SHIFT 0x10 */
4662 0, /* VK_CONTROL 0x11 */
4663 0, /* VK_MENU 0x12 */
4664 "pause", /* VK_PAUSE 0x13 */
4665 "capslock", /* VK_CAPITAL 0x14 */
4667 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4669 "escape", /* VK_ESCAPE 0x1B */
4671 0, 0, 0, 0, /* 0x1C .. 0x1F */
4673 0, /* VK_SPACE 0x20 */
4674 "prior", /* VK_PRIOR 0x21 */
4675 "next", /* VK_NEXT 0x22 */
4676 "end", /* VK_END 0x23 */
4677 "home", /* VK_HOME 0x24 */
4678 "left", /* VK_LEFT 0x25 */
4679 "up", /* VK_UP 0x26 */
4680 "right", /* VK_RIGHT 0x27 */
4681 "down", /* VK_DOWN 0x28 */
4682 "select", /* VK_SELECT 0x29 */
4683 "print", /* VK_PRINT 0x2A */
4684 "execute", /* VK_EXECUTE 0x2B */
4685 "snapshot", /* VK_SNAPSHOT 0x2C */
4686 "insert", /* VK_INSERT 0x2D */
4687 "delete", /* VK_DELETE 0x2E */
4688 "help", /* VK_HELP 0x2F */
4690 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4692 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4694 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4696 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4698 0, 0, 0, 0, 0, 0, 0, 0, 0,
4699 0, 0, 0, 0, 0, 0, 0, 0, 0,
4700 0, 0, 0, 0, 0, 0, 0, 0,
4702 "lwindow", /* VK_LWIN 0x5B */
4703 "rwindow", /* VK_RWIN 0x5C */
4704 "apps", /* VK_APPS 0x5D */
4706 0, 0, /* 0x5E .. 0x5F */
4708 "kp-0", /* VK_NUMPAD0 0x60 */
4709 "kp-1", /* VK_NUMPAD1 0x61 */
4710 "kp-2", /* VK_NUMPAD2 0x62 */
4711 "kp-3", /* VK_NUMPAD3 0x63 */
4712 "kp-4", /* VK_NUMPAD4 0x64 */
4713 "kp-5", /* VK_NUMPAD5 0x65 */
4714 "kp-6", /* VK_NUMPAD6 0x66 */
4715 "kp-7", /* VK_NUMPAD7 0x67 */
4716 "kp-8", /* VK_NUMPAD8 0x68 */
4717 "kp-9", /* VK_NUMPAD9 0x69 */
4718 "kp-multiply", /* VK_MULTIPLY 0x6A */
4719 "kp-add", /* VK_ADD 0x6B */
4720 "kp-separator", /* VK_SEPARATOR 0x6C */
4721 "kp-subtract", /* VK_SUBTRACT 0x6D */
4722 "kp-decimal", /* VK_DECIMAL 0x6E */
4723 "kp-divide", /* VK_DIVIDE 0x6F */
4724 "f1", /* VK_F1 0x70 */
4725 "f2", /* VK_F2 0x71 */
4726 "f3", /* VK_F3 0x72 */
4727 "f4", /* VK_F4 0x73 */
4728 "f5", /* VK_F5 0x74 */
4729 "f6", /* VK_F6 0x75 */
4730 "f7", /* VK_F7 0x76 */
4731 "f8", /* VK_F8 0x77 */
4732 "f9", /* VK_F9 0x78 */
4733 "f10", /* VK_F10 0x79 */
4734 "f11", /* VK_F11 0x7A */
4735 "f12", /* VK_F12 0x7B */
4736 "f13", /* VK_F13 0x7C */
4737 "f14", /* VK_F14 0x7D */
4738 "f15", /* VK_F15 0x7E */
4739 "f16", /* VK_F16 0x7F */
4740 "f17", /* VK_F17 0x80 */
4741 "f18", /* VK_F18 0x81 */
4742 "f19", /* VK_F19 0x82 */
4743 "f20", /* VK_F20 0x83 */
4744 "f21", /* VK_F21 0x84 */
4745 "f22", /* VK_F22 0x85 */
4746 "f23", /* VK_F23 0x86 */
4747 "f24", /* VK_F24 0x87 */
4749 0, 0, 0, 0, /* 0x88 .. 0x8B */
4750 0, 0, 0, 0, /* 0x8C .. 0x8F */
4752 "kp-numlock", /* VK_NUMLOCK 0x90 */
4753 "scroll", /* VK_SCROLL 0x91 */
4755 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4756 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4757 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4758 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4759 "kp-end", /* VK_NUMPAD_END 0x96 */
4760 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4761 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4762 "kp-up", /* VK_NUMPAD_UP 0x99 */
4763 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4764 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4765 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4766 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4768 0, 0, /* 0x9E .. 0x9F */
4771 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4772 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4773 * No other API or message will distinguish left and right keys this way.
4777 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4778 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4779 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4780 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4781 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4787 "attn", /* VK_ATTN 0xF6 */
4788 "crsel", /* VK_CRSEL 0xF7 */
4789 "exsel", /* VK_EXSEL 0xF8 */
4790 "ereof", /* VK_EREOF 0xF9 */
4791 "play", /* VK_PLAY 0xFA */
4792 "zoom", /* VK_ZOOM 0xFB */
4793 "noname", /* VK_NONAME 0xFC */
4794 "pa1", /* VK_PA1 0xFD */
4795 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4799 #else /* not HAVE_NTGUI */
4801 /* This should be dealt with in XTread_socket now, and that doesn't
4802 depend on the client system having the Kana syms defined. See also
4803 the XK_kana_A case below. */
4806 static char *lispy_kana_keys
[] =
4808 /* X Keysym value */
4809 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4810 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4811 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4812 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4814 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4815 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4816 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4817 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4818 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4819 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4820 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4821 "kana-i", "kana-u", "kana-e", "kana-o",
4822 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4823 "prolongedsound", "kana-A", "kana-I", "kana-U",
4824 "kana-E", "kana-O", "kana-KA", "kana-KI",
4825 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4826 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4827 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4828 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4829 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4830 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4831 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4832 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4833 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4834 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4835 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4836 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4838 #endif /* XK_kana_A */
4841 #define FUNCTION_KEY_OFFSET 0xff00
4843 /* You'll notice that this table is arranged to be conveniently
4844 indexed by X Windows keysym values. */
4845 static char *lispy_function_keys
[] =
4847 /* X Keysym value */
4849 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4850 "backspace", "tab", "linefeed", "clear",
4852 0, 0, 0, "pause", /* 0xff10...1f */
4853 0, 0, 0, 0, 0, 0, 0, "escape",
4855 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4856 "romaji", "hiragana", "katakana", "hiragana-katakana",
4857 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4858 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4859 "eisu-toggle", /* 0xff30...3f */
4860 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4861 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4863 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4864 "down", "prior", "next", "end",
4865 "begin", 0, 0, 0, 0, 0, 0, 0,
4866 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4877 "break", /* 0xff6b */
4880 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4881 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4882 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4883 0, 0, 0, 0, 0, 0, 0, 0,
4884 "kp-tab", /* 0xff89 */
4886 "kp-enter", /* 0xff8d */
4888 "kp-f1", /* 0xff91 */
4892 "kp-home", /* 0xff95 */
4897 "kp-prior", /* kp-page-up */
4898 "kp-next", /* kp-page-down */
4904 0, 0, 0, 0, 0, 0, 0, 0, 0,
4905 "kp-multiply", /* 0xffaa */
4910 "kp-divide", /* 0xffaf */
4911 "kp-0", /* 0xffb0 */
4912 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4915 "kp-equal", /* 0xffbd */
4916 "f1", /* 0xffbe */ /* IsFunctionKey */
4918 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4919 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4920 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4921 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4922 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4923 0, 0, 0, 0, 0, 0, 0, 0,
4924 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4925 0, 0, 0, 0, 0, 0, 0, "delete"
4928 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4929 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4931 static char *iso_lispy_function_keys
[] =
4933 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4934 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4935 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4936 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4937 "iso-lefttab", /* 0xfe20 */
4938 "iso-move-line-up", "iso-move-line-down",
4939 "iso-partial-line-up", "iso-partial-line-down",
4940 "iso-partial-space-left", "iso-partial-space-right",
4941 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4942 "iso-release-margin-left", "iso-release-margin-right",
4943 "iso-release-both-margins",
4944 "iso-fast-cursor-left", "iso-fast-cursor-right",
4945 "iso-fast-cursor-up", "iso-fast-cursor-down",
4946 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4947 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4950 #endif /* not HAVE_NTGUI */
4952 Lisp_Object Vlispy_mouse_stem
;
4954 static char *lispy_wheel_names
[] =
4956 "wheel-up", "wheel-down"
4959 /* drag-n-drop events are generated when a set of selected files are
4960 dragged from another application and dropped onto an Emacs window. */
4961 static char *lispy_drag_n_drop_names
[] =
4966 /* Scroll bar parts. */
4967 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4968 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4969 Lisp_Object Qtop
, Qratio
;
4971 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4972 Lisp_Object
*scroll_bar_parts
[] = {
4973 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4974 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4977 /* User signal events. */
4978 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4980 Lisp_Object
*lispy_user_signals
[] =
4982 &Qusr1_signal
, &Qusr2_signal
4986 /* A vector, indexed by button number, giving the down-going location
4987 of currently depressed buttons, both scroll bar and non-scroll bar.
4989 The elements have the form
4990 (BUTTON-NUMBER MODIFIER-MASK . REST)
4991 where REST is the cdr of a position as it would be reported in the event.
4993 The make_lispy_event function stores positions here to tell the
4994 difference between click and drag events, and to store the starting
4995 location to be included in drag events. */
4997 static Lisp_Object button_down_location
;
4999 /* Information about the most recent up-going button event: Which
5000 button, what location, and what time. */
5002 static int last_mouse_button
;
5003 static int last_mouse_x
;
5004 static int last_mouse_y
;
5005 static unsigned long button_down_time
;
5007 /* The maximum time between clicks to make a double-click, or Qnil to
5008 disable double-click detection, or Qt for no time limit. */
5010 Lisp_Object Vdouble_click_time
;
5012 /* Maximum number of pixels the mouse may be moved between clicks
5013 to make a double-click. */
5015 EMACS_INT double_click_fuzz
;
5017 /* The number of clicks in this multiple-click. */
5019 int double_click_count
;
5021 /* Return position of a mouse click or wheel event */
5024 make_lispy_position (f
, x
, y
, time
)
5030 enum window_part part
;
5031 Lisp_Object posn
= Qnil
;
5032 Lisp_Object extra_info
= Qnil
;
5035 /* Set `window' to the window under frame pixel coordinates (x,y) */
5037 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5038 &part
, &wx
, &wy
, 0);
5042 if (WINDOWP (window
))
5044 /* It's a click in window window at frame coordinates (x,y) */
5045 struct window
*w
= XWINDOW (window
);
5046 Lisp_Object string_info
= Qnil
;
5047 int textpos
= -1, rx
= -1, ry
= -1;
5048 int dx
= -1, dy
= -1;
5049 int width
= -1, height
= -1;
5050 Lisp_Object object
= Qnil
;
5052 /* Set event coordinates to window-relative coordinates
5053 for constructing the Lisp event below. */
5057 if (part
== ON_TEXT
)
5059 wx
+= WINDOW_LEFT_MARGIN_WIDTH (w
);
5061 else 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
));
5097 if (part
== ON_LEFT_MARGIN
)
5100 wx
= window_box_right_offset (w
, TEXT_AREA
) - 1;
5102 else if (part
== ON_LEFT_FRINGE
)
5104 posn
= Qleft_fringe
;
5107 wx
= (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5109 : window_box_width (w
, LEFT_MARGIN_AREA
));
5112 else if (part
== ON_RIGHT_FRINGE
)
5114 posn
= Qright_fringe
;
5117 wx
= (window_box_width (w
, LEFT_MARGIN_AREA
)
5118 + window_box_width (w
, TEXT_AREA
)
5119 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5120 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5126 /* Note: We have no special posn for part == ON_SCROLL_BAR. */
5127 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5132 Lisp_Object string2
, object2
= Qnil
;
5133 struct display_pos p
;
5135 int width2
, height2
;
5136 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5137 &object2
, &dx2
, &dy2
,
5139 textpos
= CHARPOS (p
.pos
);
5140 if (rx
< 0) rx
= wx
;
5141 if (ry
< 0) ry
= wy
;
5142 if (dx
< 0) dx
= dx2
;
5143 if (dy
< 0) dy
= dy2
;
5144 if (width
< 0) width
= width2
;
5145 if (height
< 0) height
= height2
;
5149 posn
= make_number (textpos
);
5150 if (STRINGP (string2
))
5151 string_info
= Fcons (string2
,
5152 make_number (CHARPOS (p
.string_pos
)));
5158 #ifdef HAVE_WINDOW_SYSTEM
5159 if (IMAGEP (object
))
5161 Lisp_Object image_map
, hotspot
;
5162 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5164 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5166 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5167 posn
= XCAR (hotspot
);
5172 extra_info
= Fcons (object
,
5173 Fcons (Fcons (make_number (dx
),
5175 Fcons (Fcons (make_number (width
),
5176 make_number (height
)),
5180 extra_info
= Fcons (string_info
,
5181 Fcons (make_number (textpos
),
5182 Fcons (Fcons (make_number (rx
),
5188 XSETFRAME (window
, f
);
5193 XSETFASTINT (*x
, 0);
5194 XSETFASTINT (*y
, 0);
5197 return Fcons (window
,
5199 Fcons (Fcons (*x
, *y
),
5200 Fcons (make_number (time
),
5204 /* Given a struct input_event, build the lisp event which represents
5205 it. If EVENT is 0, build a mouse movement event from the mouse
5206 movement buffer, which should have a movement event in it.
5208 Note that events must be passed to this function in the order they
5209 are received; this function stores the location of button presses
5210 in order to build drag events when the button is released. */
5213 make_lispy_event (event
)
5214 struct input_event
*event
;
5218 switch (SWITCH_ENUM_CAST (event
->kind
))
5220 /* A simple keystroke. */
5221 case ASCII_KEYSTROKE_EVENT
:
5223 Lisp_Object lispy_c
;
5224 int c
= event
->code
& 0377;
5225 /* Turn ASCII characters into control characters
5227 if (event
->modifiers
& ctrl_modifier
)
5228 c
= make_ctrl_char (c
);
5230 /* Add in the other modifier bits. We took care of ctrl_modifier
5231 just above, and the shift key was taken care of by the X code,
5232 and applied to control characters by make_ctrl_char. */
5233 c
|= (event
->modifiers
5234 & (meta_modifier
| alt_modifier
5235 | hyper_modifier
| super_modifier
));
5236 /* Distinguish Shift-SPC from SPC. */
5237 if ((event
->code
& 0377) == 040
5238 && event
->modifiers
& shift_modifier
)
5239 c
|= shift_modifier
;
5240 button_down_time
= 0;
5241 XSETFASTINT (lispy_c
, c
);
5245 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5247 Lisp_Object lispy_c
;
5248 int c
= event
->code
;
5250 /* Add in the other modifier bits. We took care of ctrl_modifier
5251 just above, and the shift key was taken care of by the X code,
5252 and applied to control characters by make_ctrl_char. */
5253 c
|= (event
->modifiers
5254 & (meta_modifier
| alt_modifier
5255 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5256 /* What about the `shift' modifier ? */
5257 button_down_time
= 0;
5258 XSETFASTINT (lispy_c
, c
);
5262 /* A function key. The symbol may need to have modifier prefixes
5264 case NON_ASCII_KEYSTROKE_EVENT
:
5265 button_down_time
= 0;
5267 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5268 if (event
->code
== lispy_accent_codes
[i
])
5269 return modify_event_symbol (i
,
5271 Qfunction_key
, Qnil
,
5272 lispy_accent_keys
, &accent_key_syms
,
5273 (sizeof (lispy_accent_keys
)
5274 / sizeof (lispy_accent_keys
[0])));
5278 if (event
->code
>= 0x400 && event
->code
< 0x500)
5279 return modify_event_symbol (event
->code
- 0x400,
5280 event
->modifiers
& ~shift_modifier
,
5281 Qfunction_key
, Qnil
,
5282 lispy_kana_keys
, &func_key_syms
,
5283 (sizeof (lispy_kana_keys
)
5284 / sizeof (lispy_kana_keys
[0])));
5285 #endif /* XK_kana_A */
5288 #ifdef ISO_FUNCTION_KEY_OFFSET
5289 if (event
->code
< FUNCTION_KEY_OFFSET
5290 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5291 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5293 Qfunction_key
, Qnil
,
5294 iso_lispy_function_keys
, &func_key_syms
,
5295 (sizeof (iso_lispy_function_keys
)
5296 / sizeof (iso_lispy_function_keys
[0])));
5299 /* Handle system-specific or unknown keysyms. */
5300 if (event
->code
& (1 << 28)
5301 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5302 || (event
->code
- FUNCTION_KEY_OFFSET
5303 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5304 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5306 /* We need to use an alist rather than a vector as the cache
5307 since we can't make a vector long enuf. */
5308 if (NILP (current_kboard
->system_key_syms
))
5309 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5310 return modify_event_symbol (event
->code
,
5313 current_kboard
->Vsystem_key_alist
,
5314 0, ¤t_kboard
->system_key_syms
,
5318 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5320 Qfunction_key
, Qnil
,
5321 lispy_function_keys
, &func_key_syms
,
5322 (sizeof (lispy_function_keys
)
5323 / sizeof (lispy_function_keys
[0])));
5326 /* A mouse click. Figure out where it is, decide whether it's
5327 a press, click or drag, and build the appropriate structure. */
5328 case MOUSE_CLICK_EVENT
:
5329 #ifndef USE_TOOLKIT_SCROLL_BARS
5330 case SCROLL_BAR_CLICK_EVENT
:
5333 int button
= event
->code
;
5335 Lisp_Object position
;
5336 Lisp_Object
*start_pos_ptr
;
5337 Lisp_Object start_pos
;
5341 /* Build the position as appropriate for this mouse click. */
5342 if (event
->kind
== MOUSE_CLICK_EVENT
)
5344 struct frame
*f
= XFRAME (event
->frame_or_window
);
5345 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5349 /* Ignore mouse events that were made on frame that
5350 have been deleted. */
5351 if (! FRAME_LIVE_P (f
))
5354 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5355 /* EVENT->x and EVENT->y are frame-relative pixel
5356 coordinates at this place. Under old redisplay, COLUMN
5357 and ROW are set to frame relative glyph coordinates
5358 which are then used to determine whether this click is
5359 in a menu (non-toolkit version). */
5360 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5361 &column
, &row
, NULL
, 1);
5363 /* In the non-toolkit version, clicks on the menu bar
5364 are ordinary button events in the event buffer.
5365 Distinguish them, and invoke the menu.
5367 (In the toolkit version, the toolkit handles the menu bar
5368 and Emacs doesn't know about it until after the user
5369 makes a selection.) */
5370 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5371 && (event
->modifiers
& down_modifier
))
5373 Lisp_Object items
, item
;
5378 /* Activate the menu bar on the down event. If the
5379 up event comes in before the menu code can deal with it,
5381 if (! (event
->modifiers
& down_modifier
))
5385 /* Find the menu bar item under `column'. */
5387 items
= FRAME_MENU_BAR_ITEMS (f
);
5388 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5390 Lisp_Object pos
, string
;
5391 string
= AREF (items
, i
+ 1);
5392 pos
= AREF (items
, i
+ 3);
5395 if (column
>= XINT (pos
)
5396 && column
< XINT (pos
) + SCHARS (string
))
5398 item
= AREF (items
, i
);
5403 /* ELisp manual 2.4b says (x y) are window relative but
5404 code says they are frame-relative. */
5406 = Fcons (event
->frame_or_window
,
5408 Fcons (Fcons (event
->x
, event
->y
),
5409 Fcons (make_number (event
->timestamp
),
5412 return Fcons (item
, Fcons (position
, Qnil
));
5414 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5416 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5419 #ifndef USE_TOOLKIT_SCROLL_BARS
5422 /* It's a scrollbar click. */
5424 Lisp_Object portion_whole
;
5427 window
= event
->frame_or_window
;
5428 portion_whole
= Fcons (event
->x
, event
->y
);
5429 part
= *scroll_bar_parts
[(int) event
->part
];
5433 Fcons (Qvertical_scroll_bar
,
5434 Fcons (portion_whole
,
5435 Fcons (make_number (event
->timestamp
),
5436 Fcons (part
, Qnil
)))));
5438 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5440 if (button
>= ASIZE (button_down_location
))
5442 button_down_location
= larger_vector (button_down_location
,
5444 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5447 start_pos_ptr
= &AREF (button_down_location
, button
);
5448 start_pos
= *start_pos_ptr
;
5449 *start_pos_ptr
= Qnil
;
5452 /* On window-system frames, use the value of
5453 double-click-fuzz as is. On other frames, interpret it
5454 as a multiple of 1/8 characters. */
5458 if (WINDOWP (event
->frame_or_window
))
5459 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5460 else if (FRAMEP (event
->frame_or_window
))
5461 f
= XFRAME (event
->frame_or_window
);
5465 if (FRAME_WINDOW_P (f
))
5466 fuzz
= double_click_fuzz
;
5468 fuzz
= double_click_fuzz
/ 8;
5470 is_double
= (button
== last_mouse_button
5471 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5472 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5473 && button_down_time
!= 0
5474 && (EQ (Vdouble_click_time
, Qt
)
5475 || (INTEGERP (Vdouble_click_time
)
5476 && ((int)(event
->timestamp
- button_down_time
)
5477 < XINT (Vdouble_click_time
)))));
5480 last_mouse_button
= button
;
5481 last_mouse_x
= XINT (event
->x
);
5482 last_mouse_y
= XINT (event
->y
);
5484 /* If this is a button press, squirrel away the location, so
5485 we can decide later whether it was a click or a drag. */
5486 if (event
->modifiers
& down_modifier
)
5490 double_click_count
++;
5491 event
->modifiers
|= ((double_click_count
> 2)
5496 double_click_count
= 1;
5497 button_down_time
= event
->timestamp
;
5498 *start_pos_ptr
= Fcopy_alist (position
);
5501 /* Now we're releasing a button - check the co-ordinates to
5502 see if this was a click or a drag. */
5503 else if (event
->modifiers
& up_modifier
)
5505 /* If we did not see a down before this up, ignore the up.
5506 Probably this happened because the down event chose a
5507 menu item. It would be an annoyance to treat the
5508 release of the button that chose the menu item as a
5511 if (!CONSP (start_pos
))
5514 event
->modifiers
&= ~up_modifier
;
5515 #if 0 /* Formerly we treated an up with no down as a click event. */
5516 if (!CONSP (start_pos
))
5517 event
->modifiers
|= click_modifier
;
5522 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5524 /* The third element of every position
5525 should be the (x,y) pair. */
5526 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5528 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5530 xdiff
= XINT (event
->x
) - XINT (XCAR (down
));
5531 ydiff
= XINT (event
->y
) - XINT (XCDR (down
));
5534 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5535 && ydiff
< double_click_fuzz
&& ydiff
> - double_click_fuzz
5536 /* Maybe the mouse has moved a lot, caused scrolling, and
5537 eventually ended up at the same screen position (but
5538 not buffer position) in which case it is a drag, not
5540 /* FIXME: OTOH if the buffer position has changed
5541 because of a timer or process filter rather than
5542 because of mouse movement, it should be considered as
5543 a click. But mouse-drag-region completely ignores
5544 this case and it hasn't caused any real problem, so
5545 it's probably OK to ignore it as well. */
5546 && EQ (Fcar (Fcdr (start_pos
)), Fcar (Fcdr (position
))))
5547 /* Mouse hasn't moved (much). */
5548 event
->modifiers
|= click_modifier
;
5551 button_down_time
= 0;
5552 event
->modifiers
|= drag_modifier
;
5555 /* Don't check is_double; treat this as multiple
5556 if the down-event was multiple. */
5557 if (double_click_count
> 1)
5558 event
->modifiers
|= ((double_click_count
> 2)
5564 /* Every mouse event should either have the down_modifier or
5565 the up_modifier set. */
5569 /* Get the symbol we should use for the mouse click. */
5572 head
= modify_event_symbol (button
,
5574 Qmouse_click
, Vlispy_mouse_stem
,
5577 XVECTOR (mouse_syms
)->size
);
5578 if (event
->modifiers
& drag_modifier
)
5583 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5586 Fcons (make_number (double_click_count
),
5597 Lisp_Object position
;
5600 /* Build the position as appropriate for this mouse click. */
5601 struct frame
*f
= XFRAME (event
->frame_or_window
);
5603 /* Ignore wheel events that were made on frame that have been
5605 if (! FRAME_LIVE_P (f
))
5608 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5611 /* Set double or triple modifiers to indicate the wheel speed. */
5613 /* On window-system frames, use the value of
5614 double-click-fuzz as is. On other frames, interpret it
5615 as a multiple of 1/8 characters. */
5620 if (WINDOWP (event
->frame_or_window
))
5621 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5622 else if (FRAMEP (event
->frame_or_window
))
5623 f
= XFRAME (event
->frame_or_window
);
5627 if (FRAME_WINDOW_P (f
))
5628 fuzz
= double_click_fuzz
;
5630 fuzz
= double_click_fuzz
/ 8;
5632 is_double
= (last_mouse_button
< 0
5633 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5634 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5635 && button_down_time
!= 0
5636 && (EQ (Vdouble_click_time
, Qt
)
5637 || (INTEGERP (Vdouble_click_time
)
5638 && ((int)(event
->timestamp
- button_down_time
)
5639 < XINT (Vdouble_click_time
)))));
5642 double_click_count
++;
5643 event
->modifiers
|= ((double_click_count
> 2)
5649 double_click_count
= 1;
5650 event
->modifiers
|= click_modifier
;
5653 button_down_time
= event
->timestamp
;
5654 /* Use a negative value to distinguish wheel from mouse button. */
5655 last_mouse_button
= -1;
5656 last_mouse_x
= XINT (event
->x
);
5657 last_mouse_y
= XINT (event
->y
);
5663 if (event
->modifiers
& up_modifier
)
5665 /* Emit a wheel-up event. */
5666 event
->modifiers
&= ~up_modifier
;
5669 else if (event
->modifiers
& down_modifier
)
5671 /* Emit a wheel-down event. */
5672 event
->modifiers
&= ~down_modifier
;
5676 /* Every wheel event should either have the down_modifier or
5677 the up_modifier set. */
5680 /* Get the symbol we should use for the wheel event. */
5681 head
= modify_event_symbol (symbol_num
,
5687 ASIZE (wheel_syms
));
5690 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5693 Fcons (make_number (double_click_count
),
5702 #ifdef USE_TOOLKIT_SCROLL_BARS
5704 /* We don't have down and up events if using toolkit scroll bars,
5705 so make this always a click event. Store in the `part' of
5706 the Lisp event a symbol which maps to the following actions:
5708 `above_handle' page up
5709 `below_handle' page down
5713 `bottom' bottom of buffer
5714 `handle' thumb has been dragged.
5715 `end-scroll' end of interaction with scroll bar
5717 The incoming input_event contains in its `part' member an
5718 index of type `enum scroll_bar_part' which we can use as an
5719 index in scroll_bar_parts to get the appropriate symbol. */
5721 case SCROLL_BAR_CLICK_EVENT
:
5723 Lisp_Object position
, head
, window
, portion_whole
, part
;
5725 window
= event
->frame_or_window
;
5726 portion_whole
= Fcons (event
->x
, event
->y
);
5727 part
= *scroll_bar_parts
[(int) event
->part
];
5731 Fcons (Qvertical_scroll_bar
,
5732 Fcons (portion_whole
,
5733 Fcons (make_number (event
->timestamp
),
5734 Fcons (part
, Qnil
)))));
5736 /* Always treat scroll bar events as clicks. */
5737 event
->modifiers
|= click_modifier
;
5738 event
->modifiers
&= ~up_modifier
;
5740 if (event
->code
>= ASIZE (mouse_syms
))
5741 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5743 /* Get the symbol we should use for the mouse click. */
5744 head
= modify_event_symbol (event
->code
,
5749 XVECTOR (mouse_syms
)->size
);
5750 return Fcons (head
, Fcons (position
, Qnil
));
5753 #endif /* USE_TOOLKIT_SCROLL_BARS */
5756 case W32_SCROLL_BAR_CLICK_EVENT
:
5758 int button
= event
->code
;
5760 Lisp_Object position
;
5761 Lisp_Object
*start_pos_ptr
;
5762 Lisp_Object start_pos
;
5766 Lisp_Object portion_whole
;
5769 window
= event
->frame_or_window
;
5770 portion_whole
= Fcons (event
->x
, event
->y
);
5771 part
= *scroll_bar_parts
[(int) event
->part
];
5775 Fcons (Qvertical_scroll_bar
,
5776 Fcons (portion_whole
,
5777 Fcons (make_number (event
->timestamp
),
5778 Fcons (part
, Qnil
)))));
5781 /* Always treat W32 scroll bar events as clicks. */
5782 event
->modifiers
|= click_modifier
;
5785 /* Get the symbol we should use for the mouse click. */
5788 head
= modify_event_symbol (button
,
5793 XVECTOR (mouse_syms
)->size
);
5799 #endif /* WINDOWSNT */
5801 case DRAG_N_DROP_EVENT
:
5804 Lisp_Object head
, position
;
5807 /* The frame_or_window field should be a cons of the frame in
5808 which the event occurred and a list of the filenames
5810 if (! CONSP (event
->frame_or_window
))
5813 f
= XFRAME (XCAR (event
->frame_or_window
));
5814 files
= XCDR (event
->frame_or_window
);
5816 /* Ignore mouse events that were made on frames that
5817 have been deleted. */
5818 if (! FRAME_LIVE_P (f
))
5821 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5824 head
= modify_event_symbol (0, event
->modifiers
,
5826 lispy_drag_n_drop_names
,
5827 &drag_n_drop_syms
, 1);
5833 #endif /* HAVE_MOUSE */
5835 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5836 || defined (USE_GTK)
5837 case MENU_BAR_EVENT
:
5838 if (EQ (event
->arg
, event
->frame_or_window
))
5839 /* This is the prefix key. We translate this to
5840 `(menu_bar)' because the code in keyboard.c for menu
5841 events, which we use, relies on this. */
5842 return Fcons (Qmenu_bar
, Qnil
);
5846 case SELECT_WINDOW_EVENT
:
5847 /* Make an event (select-window (WINDOW)). */
5848 return Fcons (Qselect_window
,
5849 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5852 case TOOL_BAR_EVENT
:
5853 if (EQ (event
->arg
, event
->frame_or_window
))
5854 /* This is the prefix key. We translate this to
5855 `(tool_bar)' because the code in keyboard.c for tool bar
5856 events, which we use, relies on this. */
5857 return Fcons (Qtool_bar
, Qnil
);
5858 else if (SYMBOLP (event
->arg
))
5859 return apply_modifiers (event
->modifiers
, event
->arg
);
5862 case USER_SIGNAL_EVENT
:
5863 /* A user signal. */
5864 return *lispy_user_signals
[event
->code
];
5866 case SAVE_SESSION_EVENT
:
5867 return Qsave_session
;
5869 /* The 'kind' field of the event is something we don't recognize. */
5878 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5880 Lisp_Object bar_window
;
5881 enum scroll_bar_part part
;
5885 /* Is it a scroll bar movement? */
5886 if (frame
&& ! NILP (bar_window
))
5888 Lisp_Object part_sym
;
5890 part_sym
= *scroll_bar_parts
[(int) part
];
5891 return Fcons (Qscroll_bar_movement
,
5892 (Fcons (Fcons (bar_window
,
5893 Fcons (Qvertical_scroll_bar
,
5894 Fcons (Fcons (x
, y
),
5895 Fcons (make_number (time
),
5901 /* Or is it an ordinary mouse movement? */
5904 Lisp_Object position
;
5906 position
= make_lispy_position (frame
, &x
, &y
, time
);
5908 return Fcons (Qmouse_movement
,
5914 #endif /* HAVE_MOUSE */
5916 /* Construct a switch frame event. */
5918 make_lispy_switch_frame (frame
)
5921 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5924 /* Manipulating modifiers. */
5926 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5928 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5929 SYMBOL's name of the end of the modifiers; the string from this
5930 position is the unmodified symbol name.
5932 This doesn't use any caches. */
5935 parse_modifiers_uncached (symbol
, modifier_end
)
5943 CHECK_SYMBOL (symbol
);
5946 name
= SYMBOL_NAME (symbol
);
5948 for (i
= 0; i
+2 <= SBYTES (name
); )
5950 int this_mod_end
= 0;
5953 /* See if the name continues with a modifier word.
5954 Check that the word appears, but don't check what follows it.
5955 Set this_mod and this_mod_end to record what we find. */
5957 switch (SREF (name
, i
))
5959 #define SINGLE_LETTER_MOD(BIT) \
5960 (this_mod_end = i + 1, this_mod = BIT)
5963 SINGLE_LETTER_MOD (alt_modifier
);
5967 SINGLE_LETTER_MOD (ctrl_modifier
);
5971 SINGLE_LETTER_MOD (hyper_modifier
);
5975 SINGLE_LETTER_MOD (meta_modifier
);
5979 SINGLE_LETTER_MOD (shift_modifier
);
5983 SINGLE_LETTER_MOD (super_modifier
);
5986 #undef SINGLE_LETTER_MOD
5988 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
5989 if (i + LEN + 1 <= SBYTES (name) \
5990 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
5992 this_mod_end = i + LEN; \
5997 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
5998 MULTI_LETTER_MOD (down_modifier
, "down", 4);
5999 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6003 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6005 #undef MULTI_LETTER_MOD
6009 /* If we found no modifier, stop looking for them. */
6010 if (this_mod_end
== 0)
6013 /* Check there is a dash after the modifier, so that it
6014 really is a modifier. */
6015 if (this_mod_end
>= SBYTES (name
)
6016 || SREF (name
, this_mod_end
) != '-')
6019 /* This modifier is real; look for another. */
6020 modifiers
|= this_mod
;
6021 i
= this_mod_end
+ 1;
6024 /* Should we include the `click' modifier? */
6025 if (! (modifiers
& (down_modifier
| drag_modifier
6026 | double_modifier
| triple_modifier
))
6027 && i
+ 7 == SBYTES (name
)
6028 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
6029 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
6030 modifiers
|= click_modifier
;
6038 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
6039 prepended to the string BASE[0..BASE_LEN-1].
6040 This doesn't use any caches. */
6042 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
6045 int base_len
, base_len_byte
;
6047 /* Since BASE could contain nulls, we can't use intern here; we have
6048 to use Fintern, which expects a genuine Lisp_String, and keeps a
6051 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6057 /* Only the event queue may use the `up' modifier; it should always
6058 be turned into a click or drag event before presented to lisp code. */
6059 if (modifiers
& up_modifier
)
6062 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6063 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6064 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6065 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6066 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6067 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6068 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6069 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6070 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6071 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6072 /* The click modifier is denoted by the absence of other modifiers. */
6076 mod_len
= p
- new_mods
;
6080 Lisp_Object new_name
;
6082 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6083 mod_len
+ base_len_byte
);
6084 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6085 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6087 return Fintern (new_name
, Qnil
);
6092 static char *modifier_names
[] =
6094 "up", "down", "drag", "click", "double", "triple", 0, 0,
6095 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6096 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6098 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6100 static Lisp_Object modifier_symbols
;
6102 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6104 lispy_modifier_list (modifiers
)
6107 Lisp_Object modifier_list
;
6110 modifier_list
= Qnil
;
6111 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6112 if (modifiers
& (1<<i
))
6113 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6116 return modifier_list
;
6120 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6121 where UNMODIFIED is the unmodified form of SYMBOL,
6122 MASK is the set of modifiers present in SYMBOL's name.
6123 This is similar to parse_modifiers_uncached, but uses the cache in
6124 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6125 Qevent_symbol_elements property. */
6128 parse_modifiers (symbol
)
6131 Lisp_Object elements
;
6133 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6134 if (CONSP (elements
))
6139 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6140 Lisp_Object unmodified
;
6143 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6144 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6147 if (modifiers
& ~INTMASK
)
6149 XSETFASTINT (mask
, modifiers
);
6150 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6152 /* Cache the parsing results on SYMBOL. */
6153 Fput (symbol
, Qevent_symbol_element_mask
,
6155 Fput (symbol
, Qevent_symbol_elements
,
6156 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6158 /* Since we know that SYMBOL is modifiers applied to unmodified,
6159 it would be nice to put that in unmodified's cache.
6160 But we can't, since we're not sure that parse_modifiers is
6167 /* Apply the modifiers MODIFIERS to the symbol BASE.
6168 BASE must be unmodified.
6170 This is like apply_modifiers_uncached, but uses BASE's
6171 Qmodifier_cache property, if present. It also builds
6172 Qevent_symbol_elements properties, since it has that info anyway.
6174 apply_modifiers copies the value of BASE's Qevent_kind property to
6175 the modified symbol. */
6177 apply_modifiers (modifiers
, base
)
6181 Lisp_Object cache
, index
, entry
, new_symbol
;
6183 /* Mask out upper bits. We don't know where this value's been. */
6184 modifiers
&= INTMASK
;
6186 /* The click modifier never figures into cache indices. */
6187 cache
= Fget (base
, Qmodifier_cache
);
6188 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6189 entry
= assq_no_quit (index
, cache
);
6192 new_symbol
= XCDR (entry
);
6195 /* We have to create the symbol ourselves. */
6196 new_symbol
= apply_modifiers_uncached (modifiers
,
6197 SDATA (SYMBOL_NAME (base
)),
6198 SCHARS (SYMBOL_NAME (base
)),
6199 SBYTES (SYMBOL_NAME (base
)));
6201 /* Add the new symbol to the base's cache. */
6202 entry
= Fcons (index
, new_symbol
);
6203 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6205 /* We have the parsing info now for free, so we could add it to
6207 XSETFASTINT (index, modifiers);
6208 Fput (new_symbol, Qevent_symbol_element_mask,
6209 Fcons (base, Fcons (index, Qnil)));
6210 Fput (new_symbol, Qevent_symbol_elements,
6211 Fcons (base, lispy_modifier_list (modifiers)));
6212 Sadly, this is only correct if `base' is indeed a base event,
6213 which is not necessarily the case. -stef */
6216 /* Make sure this symbol is of the same kind as BASE.
6218 You'd think we could just set this once and for all when we
6219 intern the symbol above, but reorder_modifiers may call us when
6220 BASE's property isn't set right; we can't assume that just
6221 because it has a Qmodifier_cache property it must have its
6222 Qevent_kind set right as well. */
6223 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6227 kind
= Fget (base
, Qevent_kind
);
6229 Fput (new_symbol
, Qevent_kind
, kind
);
6236 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6237 return a symbol with the modifiers placed in the canonical order.
6238 Canonical order is alphabetical, except for down and drag, which
6239 always come last. The 'click' modifier is never written out.
6241 Fdefine_key calls this to make sure that (for example) C-M-foo
6242 and M-C-foo end up being equivalent in the keymap. */
6245 reorder_modifiers (symbol
)
6248 /* It's hopefully okay to write the code this way, since everything
6249 will soon be in caches, and no consing will be done at all. */
6252 parsed
= parse_modifiers (symbol
);
6253 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6258 /* For handling events, we often want to produce a symbol whose name
6259 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6260 to some base, like the name of a function key or mouse button.
6261 modify_event_symbol produces symbols of this sort.
6263 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6264 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6267 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6268 into symbol names, or a string specifying a name stem used to
6269 construct a symbol name or the form `STEM-N', where N is the decimal
6270 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6271 non-nil; otherwise NAME_TABLE is used.
6273 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6274 persist between calls to modify_event_symbol that it can use to
6275 store a cache of the symbols it's generated for this NAME_TABLE
6276 before. The object stored there may be a vector or an alist.
6278 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6280 MODIFIERS is a set of modifier bits (as given in struct input_events)
6281 whose prefixes should be applied to the symbol name.
6283 SYMBOL_KIND is the value to be placed in the event_kind property of
6284 the returned symbol.
6286 The symbols we create are supposed to have an
6287 `event-symbol-elements' property, which lists the modifiers present
6288 in the symbol's name. */
6291 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6292 name_table
, symbol_table
, table_size
)
6295 Lisp_Object symbol_kind
;
6296 Lisp_Object name_alist_or_stem
;
6298 Lisp_Object
*symbol_table
;
6299 unsigned int table_size
;
6302 Lisp_Object symbol_int
;
6304 /* Get rid of the "vendor-specific" bit here. */
6305 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6307 /* Is this a request for a valid symbol? */
6308 if (symbol_num
< 0 || symbol_num
>= table_size
)
6311 if (CONSP (*symbol_table
))
6312 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6314 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6315 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6316 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6317 we've never used that symbol before. */
6320 if (! VECTORP (*symbol_table
)
6321 || XVECTOR (*symbol_table
)->size
!= table_size
)
6325 XSETFASTINT (size
, table_size
);
6326 *symbol_table
= Fmake_vector (size
, Qnil
);
6329 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6332 /* Have we already used this symbol before? */
6335 /* No; let's create it. */
6336 if (CONSP (name_alist_or_stem
))
6337 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6338 else if (STRINGP (name_alist_or_stem
))
6340 int len
= SBYTES (name_alist_or_stem
);
6341 char *buf
= (char *) alloca (len
+ 50);
6342 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6343 (long) XINT (symbol_int
) + 1);
6344 value
= intern (buf
);
6346 else if (name_table
!= 0 && name_table
[symbol_num
])
6347 value
= intern (name_table
[symbol_num
]);
6349 #ifdef HAVE_WINDOW_SYSTEM
6352 char *name
= x_get_keysym_name (symbol_num
);
6354 value
= intern (name
);
6361 sprintf (buf
, "key-%d", symbol_num
);
6362 value
= intern (buf
);
6365 if (CONSP (*symbol_table
))
6366 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6368 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6370 /* Fill in the cache entries for this symbol; this also
6371 builds the Qevent_symbol_elements property, which the user
6373 apply_modifiers (modifiers
& click_modifier
, value
);
6374 Fput (value
, Qevent_kind
, symbol_kind
);
6377 /* Apply modifiers to that symbol. */
6378 return apply_modifiers (modifiers
, value
);
6381 /* Convert a list that represents an event type,
6382 such as (ctrl meta backspace), into the usual representation of that
6383 event type as a number or a symbol. */
6385 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6386 doc
: /* Convert the event description list EVENT-DESC to an event type.
6387 EVENT-DESC should contain one base event type (a character or symbol)
6388 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6389 drag, down, double or triple). The base must be last.
6390 The return value is an event type (a character or symbol) which
6391 has the same base event type and all the specified modifiers. */)
6393 Lisp_Object event_desc
;
6401 while (CONSP (rest
))
6409 /* Given a symbol, see if it is a modifier name. */
6410 if (SYMBOLP (elt
) && CONSP (rest
))
6411 this = parse_solitary_modifier (elt
);
6415 else if (!NILP (base
))
6416 error ("Two bases given in one event");
6422 /* Let the symbol A refer to the character A. */
6423 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6424 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6426 if (INTEGERP (base
))
6428 /* Turn (shift a) into A. */
6429 if ((modifiers
& shift_modifier
) != 0
6430 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6432 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6433 modifiers
&= ~shift_modifier
;
6436 /* Turn (control a) into C-a. */
6437 if (modifiers
& ctrl_modifier
)
6438 return make_number ((modifiers
& ~ctrl_modifier
)
6439 | make_ctrl_char (XINT (base
)));
6441 return make_number (modifiers
| XINT (base
));
6443 else if (SYMBOLP (base
))
6444 return apply_modifiers (modifiers
, base
);
6447 error ("Invalid base event");
6452 /* Try to recognize SYMBOL as a modifier name.
6453 Return the modifier flag bit, or 0 if not recognized. */
6456 parse_solitary_modifier (symbol
)
6459 Lisp_Object name
= SYMBOL_NAME (symbol
);
6461 switch (SREF (name
, 0))
6463 #define SINGLE_LETTER_MOD(BIT) \
6464 if (SBYTES (name) == 1) \
6467 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6468 if (LEN == SBYTES (name) \
6469 && ! strncmp (SDATA (name), NAME, LEN)) \
6473 SINGLE_LETTER_MOD (alt_modifier
);
6477 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6481 SINGLE_LETTER_MOD (ctrl_modifier
);
6485 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6486 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6490 SINGLE_LETTER_MOD (hyper_modifier
);
6494 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6498 SINGLE_LETTER_MOD (meta_modifier
);
6502 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6506 SINGLE_LETTER_MOD (shift_modifier
);
6510 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6511 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6512 SINGLE_LETTER_MOD (super_modifier
);
6516 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6517 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6518 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6522 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6525 #undef SINGLE_LETTER_MOD
6526 #undef MULTI_LETTER_MOD
6532 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6533 Such a list is not valid as an event,
6534 but it can be a Lucid-style event type list. */
6537 lucid_event_type_list_p (object
)
6542 if (! CONSP (object
))
6545 if (EQ (XCAR (object
), Qhelp_echo
)
6546 || EQ (XCAR (object
), Qvertical_line
)
6547 || EQ (XCAR (object
), Qmode_line
)
6548 || EQ (XCAR (object
), Qheader_line
))
6551 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6555 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6562 /* Store into *addr a value nonzero if terminal input chars are available.
6563 Serves the purpose of ioctl (0, FIONREAD, addr)
6564 but works even if FIONREAD does not exist.
6565 (In fact, this may actually read some input.)
6567 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6568 timer events that are ripe.
6569 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6570 events (FOCUS_IN_EVENT).
6571 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6572 movements and toolkit scroll bar thumb drags. */
6575 get_input_pending (addr
, flags
)
6579 /* First of all, have we already counted some input? */
6580 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6582 /* If input is being read as it arrives, and we have none, there is none. */
6583 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6586 /* Try to read some input and see how much we get. */
6588 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6591 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6594 gobble_input (expected
)
6599 if (interrupt_input
)
6602 mask
= sigblock (sigmask (SIGIO
));
6603 read_avail_input (expected
);
6607 #ifdef POLL_FOR_INPUT
6608 if (read_socket_hook
&& !interrupt_input
&& poll_suppress_count
== 0)
6611 mask
= sigblock (sigmask (SIGALRM
));
6612 read_avail_input (expected
);
6618 read_avail_input (expected
);
6622 /* Put a BUFFER_SWITCH_EVENT in the buffer
6623 so that read_key_sequence will notice the new current buffer. */
6626 record_asynch_buffer_change ()
6628 struct input_event event
;
6632 event
.kind
= BUFFER_SWITCH_EVENT
;
6633 event
.frame_or_window
= Qnil
;
6637 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6638 The purpose of the event is to make read_key_sequence look up the
6639 keymaps again. If we aren't in read_key_sequence, we don't need one,
6640 and the event could cause trouble by messing up (input-pending-p). */
6641 tem
= Fwaiting_for_user_input_p ();
6645 /* We never need these events if we have no asynchronous subprocesses. */
6649 /* Make sure no interrupt happens while storing the event. */
6651 if (interrupt_input
)
6654 mask
= sigblock (sigmask (SIGIO
));
6655 kbd_buffer_store_event (&event
);
6662 kbd_buffer_store_event (&event
);
6669 /* Read any terminal input already buffered up by the system
6670 into the kbd_buffer, but do not wait.
6672 EXPECTED should be nonzero if the caller knows there is some input.
6674 Except on VMS, all input is read by this function.
6675 If interrupt_input is nonzero, this function MUST be called
6676 only when SIGIO is blocked.
6678 Returns the number of keyboard chars read, or -1 meaning
6679 this is a bad time to try to read input. */
6682 read_avail_input (expected
)
6688 if (read_socket_hook
)
6691 struct input_event hold_quit
;
6693 EVENT_INIT (hold_quit
);
6694 hold_quit
.kind
= NO_EVENT
;
6696 /* No need for FIONREAD or fcntl; just say don't wait. */
6697 while (nr
= (*read_socket_hook
) (input_fd
, expected
, &hold_quit
), nr
> 0)
6702 if (hold_quit
.kind
!= NO_EVENT
)
6703 kbd_buffer_store_event (&hold_quit
);
6707 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6708 the kbd_buffer can really hold. That may prevent loss
6709 of characters on some systems when input is stuffed at us. */
6710 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6713 /* Determine how many characters we should *try* to read. */
6716 #else /* not WINDOWSNT */
6718 n_to_read
= dos_keysns ();
6721 #else /* not MSDOS */
6723 /* Find out how much input is available. */
6724 if (ioctl (input_fd
, FIONREAD
, &n_to_read
) < 0)
6725 /* Formerly simply reported no input, but that sometimes led to
6726 a failure of Emacs to terminate.
6727 SIGHUP seems appropriate if we can't reach the terminal. */
6728 /* ??? Is it really right to send the signal just to this process
6729 rather than to the whole process group?
6730 Perhaps on systems with FIONREAD Emacs is alone in its group. */
6732 if (! noninteractive
)
6733 kill (getpid (), SIGHUP
);
6739 if (n_to_read
> sizeof cbuf
)
6740 n_to_read
= sizeof cbuf
;
6741 #else /* no FIONREAD */
6742 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6743 /* Read some input if available, but don't wait. */
6744 n_to_read
= sizeof cbuf
;
6745 fcntl (input_fd
, F_SETFL
, O_NDELAY
);
6750 #endif /* not MSDOS */
6751 #endif /* not WINDOWSNT */
6753 /* Now read; for one reason or another, this will not block.
6754 NREAD is set to the number of chars read. */
6758 cbuf
[0] = dos_keyread ();
6761 nread
= emacs_read (input_fd
, cbuf
, n_to_read
);
6763 /* POSIX infers that processes which are not in the session leader's
6764 process group won't get SIGHUP's at logout time. BSDI adheres to
6765 this part standard and returns -1 from read (0) with errno==EIO
6766 when the control tty is taken away.
6767 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6768 if (nread
== -1 && errno
== EIO
)
6770 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6771 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6772 This looks incorrect, but it isn't, because _BSD causes
6773 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6774 and that causes a value other than 0 when there is no input. */
6780 /* We used to retry the read if it was interrupted.
6781 But this does the wrong thing when O_NDELAY causes
6782 an EAGAIN error. Does anybody know of a situation
6783 where a retry is actually needed? */
6785 nread
< 0 && (errno
== EAGAIN
6799 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6800 fcntl (input_fd
, F_SETFL
, 0);
6801 #endif /* USG or DGUX or CYGWIN */
6802 #endif /* no FIONREAD */
6803 for (i
= 0; i
< nread
; i
++)
6805 struct input_event buf
;
6807 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6809 if (meta_key
== 1 && (cbuf
[i
] & 0x80))
6810 buf
.modifiers
= meta_modifier
;
6815 buf
.frame_or_window
= selected_frame
;
6818 kbd_buffer_store_event (&buf
);
6819 /* Don't look at input that follows a C-g too closely.
6820 This reduces lossage due to autorepeat on C-g. */
6821 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6822 && buf
.code
== quit_char
)
6829 #endif /* not VMS */
6832 handle_async_input ()
6835 extern int select_alarmed
;
6838 interrupt_input_pending
= 0;
6843 nread
= read_avail_input (1);
6844 /* -1 means it's not ok to read the input now.
6845 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6846 0 means there was no keyboard input available. */
6851 select_alarmed
= 1; /* Force the select emulator back to life */
6856 #ifdef SIGIO /* for entire page */
6857 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6860 input_available_signal (signo
)
6863 /* Must preserve main program's value of errno. */
6864 int old_errno
= errno
;
6865 #if defined (USG) && !defined (POSIX_SIGNALS)
6866 /* USG systems forget handlers when they are used;
6867 must reestablish each time */
6868 signal (signo
, input_available_signal
);
6876 interrupt_input_pending
= 1;
6878 SIGNAL_THREAD_CHECK (signo
);
6881 if (input_available_clear_time
)
6882 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6885 handle_async_input ();
6895 /* Send ourselves a SIGIO.
6897 This function exists so that the UNBLOCK_INPUT macro in
6898 blockinput.h can have some way to take care of input we put off
6899 dealing with, without assuming that every file which uses
6900 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6902 reinvoke_input_signal ()
6905 handle_async_input ();
6911 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6912 static Lisp_Object menu_bar_one_keymap_changed_items
;
6914 /* These variables hold the vector under construction within
6915 menu_bar_items and its subroutines, and the current index
6916 for storing into that vector. */
6917 static Lisp_Object menu_bar_items_vector
;
6918 static int menu_bar_items_index
;
6920 /* Return a vector of menu items for a menu bar, appropriate
6921 to the current buffer. Each item has three elements in the vector:
6924 OLD is an old vector we can optionally reuse, or nil. */
6927 menu_bar_items (old
)
6930 /* The number of keymaps we're scanning right now, and the number of
6931 keymaps we have allocated space for. */
6934 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6935 in the current keymaps, or nil where it is not a prefix. */
6938 Lisp_Object def
, tail
;
6947 /* In order to build the menus, we need to call the keymap
6948 accessors. They all call QUIT. But this function is called
6949 during redisplay, during which a quit is fatal. So inhibit
6950 quitting while building the menus.
6951 We do this instead of specbind because (1) errors will clear it anyway
6952 and (2) this avoids risk of specpdl overflow. */
6953 oquit
= Vinhibit_quit
;
6957 menu_bar_items_vector
= old
;
6959 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6960 menu_bar_items_index
= 0;
6962 /* Build our list of keymaps.
6963 If we recognize a function key and replace its escape sequence in
6964 keybuf with its symbol, or if the sequence starts with a mouse
6965 click and we need to switch buffers, we jump back here to rebuild
6966 the initial keymaps from the current buffer. */
6970 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6971 if (!NILP (Voverriding_local_map_menu_flag
))
6973 /* Yes, use them (if non-nil) as well as the global map. */
6974 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6976 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6977 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6978 if (!NILP (Voverriding_local_map
))
6979 maps
[nmaps
++] = Voverriding_local_map
;
6983 /* No, so use major and minor mode keymaps and keymap property.
6984 Note that menu-bar bindings in the local-map and keymap
6985 properties may not work reliable, as they are only
6986 recognized when the menu-bar (or mode-line) is updated,
6987 which does not normally happen after every command. */
6990 nminor
= current_minor_maps (NULL
, &tmaps
);
6991 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
6993 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
6994 maps
[nmaps
++] = tem
;
6995 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
6997 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
6999 maps
[nmaps
++] = current_global_map
;
7002 /* Look up in each map the dummy prefix key `menu-bar'. */
7006 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7007 if (!NILP (maps
[mapno
]))
7009 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7013 menu_bar_one_keymap_changed_items
= Qnil
;
7014 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7018 /* Move to the end those items that should be at the end. */
7020 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7023 int end
= menu_bar_items_index
;
7025 for (i
= 0; i
< end
; i
+= 4)
7026 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7028 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7029 /* Move the item at index I to the end,
7030 shifting all the others forward. */
7031 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7032 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7033 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7034 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7036 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7037 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7038 (end
- i
- 4) * sizeof (Lisp_Object
));
7039 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7040 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7041 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7042 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7047 /* Add nil, nil, nil, nil at the end. */
7048 i
= menu_bar_items_index
;
7049 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7052 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7053 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7054 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7055 menu_bar_items_vector
= tem
;
7057 /* Add this item. */
7058 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7059 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7060 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7061 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7062 menu_bar_items_index
= i
;
7064 Vinhibit_quit
= oquit
;
7065 return menu_bar_items_vector
;
7068 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7069 If there's already an item for KEY, add this DEF to it. */
7071 Lisp_Object item_properties
;
7074 menu_bar_item (key
, item
, dummy1
, dummy2
)
7075 Lisp_Object key
, item
, dummy1
;
7078 struct gcpro gcpro1
;
7082 if (EQ (item
, Qundefined
))
7084 /* If a map has an explicit `undefined' as definition,
7085 discard any previously made menu bar item. */
7087 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7088 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7090 if (menu_bar_items_index
> i
+ 4)
7091 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7092 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7093 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7094 menu_bar_items_index
-= 4;
7098 /* If this keymap has already contributed to this KEY,
7099 don't contribute to it a second time. */
7100 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7101 if (!NILP (tem
) || NILP (item
))
7104 menu_bar_one_keymap_changed_items
7105 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7107 /* We add to menu_bar_one_keymap_changed_items before doing the
7108 parse_menu_item, so that if it turns out it wasn't a menu item,
7109 it still correctly hides any further menu item. */
7111 i
= parse_menu_item (item
, 0, 1);
7116 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7118 /* Find any existing item for this KEY. */
7119 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7120 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7123 /* If we did not find this KEY, add it at the end. */
7124 if (i
== menu_bar_items_index
)
7126 /* If vector is too small, get a bigger one. */
7127 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7130 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7131 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7132 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7133 menu_bar_items_vector
= tem
;
7136 /* Add this item. */
7137 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7138 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7139 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7140 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7141 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7142 menu_bar_items_index
= i
;
7144 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7148 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7149 /* If the new and the old items are not both keymaps,
7150 the lookup will only find `item'. */
7151 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7152 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7156 /* This is used as the handler when calling menu_item_eval_property. */
7158 menu_item_eval_property_1 (arg
)
7161 /* If we got a quit from within the menu computation,
7162 quit all the way out of it. This takes care of C-] in the debugger. */
7163 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7164 Fsignal (Qquit
, Qnil
);
7169 /* Evaluate an expression and return the result (or nil if something
7170 went wrong). Used to evaluate dynamic parts of menu items. */
7172 menu_item_eval_property (sexpr
)
7175 int count
= SPECPDL_INDEX ();
7177 specbind (Qinhibit_redisplay
, Qt
);
7178 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7179 menu_item_eval_property_1
);
7180 return unbind_to (count
, val
);
7183 /* This function parses a menu item and leaves the result in the
7184 vector item_properties.
7185 ITEM is a key binding, a possible menu item.
7186 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7187 evaluate dynamic expressions in the menu item.
7188 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7190 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7191 parse_menu_item returns true if the item is a menu item and false
7195 parse_menu_item (item
, notreal
, inmenubar
)
7197 int notreal
, inmenubar
;
7199 Lisp_Object def
, tem
, item_string
, start
;
7200 Lisp_Object cachelist
;
7202 Lisp_Object keyhint
;
7213 /* Create item_properties vector if necessary. */
7214 if (NILP (item_properties
))
7216 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7218 /* Initialize optional entries. */
7219 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7220 AREF (item_properties
, i
) = Qnil
;
7221 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7223 /* Save the item here to protect it from GC. */
7224 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7226 item_string
= XCAR (item
);
7230 if (STRINGP (item_string
))
7232 /* Old format menu item. */
7233 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7235 /* Maybe help string. */
7236 if (CONSP (item
) && STRINGP (XCAR (item
)))
7238 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7243 /* Maybe key binding cache. */
7244 if (CONSP (item
) && CONSP (XCAR (item
))
7245 && (NILP (XCAR (XCAR (item
)))
7246 || VECTORP (XCAR (XCAR (item
)))))
7248 cachelist
= XCAR (item
);
7252 /* This is the real definition--the function to run. */
7253 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7255 /* Get enable property, if any. */
7258 tem
= Fget (item
, Qmenu_enable
);
7260 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7263 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7265 /* New format menu item. */
7266 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7267 start
= XCDR (item
);
7270 /* We have a real binding. */
7271 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7273 item
= XCDR (start
);
7274 /* Is there a cache list with key equivalences. */
7275 if (CONSP (item
) && CONSP (XCAR (item
)))
7277 cachelist
= XCAR (item
);
7281 /* Parse properties. */
7282 while (CONSP (item
) && CONSP (XCDR (item
)))
7287 if (EQ (tem
, QCenable
))
7288 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7289 else if (EQ (tem
, QCvisible
) && !notreal
)
7291 /* If got a visible property and that evaluates to nil
7292 then ignore this item. */
7293 tem
= menu_item_eval_property (XCAR (item
));
7297 else if (EQ (tem
, QChelp
))
7298 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7299 else if (EQ (tem
, QCfilter
))
7301 else if (EQ (tem
, QCkey_sequence
))
7304 if (NILP (cachelist
)
7305 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7306 /* Be GC protected. Set keyhint to item instead of tem. */
7309 else if (EQ (tem
, QCkeys
))
7312 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7313 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7315 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7320 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7322 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7324 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7331 else if (inmenubar
|| !NILP (start
))
7335 return 0; /* not a menu item */
7337 /* If item string is not a string, evaluate it to get string.
7338 If we don't get a string, skip this item. */
7339 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7340 if (!(STRINGP (item_string
) || notreal
))
7342 item_string
= menu_item_eval_property (item_string
);
7343 if (!STRINGP (item_string
))
7345 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7348 /* If got a filter apply it on definition. */
7349 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7352 def
= menu_item_eval_property (list2 (XCAR (filter
),
7353 list2 (Qquote
, def
)));
7355 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7358 /* Enable or disable selection of item. */
7359 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7365 tem
= menu_item_eval_property (tem
);
7366 if (inmenubar
&& NILP (tem
))
7367 return 0; /* Ignore disabled items in menu bar. */
7368 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7371 /* If we got no definition, this item is just unselectable text which
7372 is OK in a submenu but not in the menubar. */
7374 return (inmenubar
? 0 : 1);
7376 /* See if this is a separate pane or a submenu. */
7377 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7378 tem
= get_keymap (def
, 0, 1);
7379 /* For a subkeymap, just record its details and exit. */
7382 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7383 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7387 /* At the top level in the menu bar, do likewise for commands also.
7388 The menu bar does not display equivalent key bindings anyway.
7389 ITEM_PROPERTY_DEF is already set up properly. */
7393 /* This is a command. See if there is an equivalent key binding. */
7394 if (NILP (cachelist
))
7396 /* We have to create a cachelist. */
7397 CHECK_IMPURE (start
);
7398 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7399 cachelist
= XCAR (XCDR (start
));
7401 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7402 if (!NILP (keyhint
))
7404 XSETCAR (cachelist
, XCAR (keyhint
));
7407 else if (STRINGP (tem
))
7409 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7410 XSETCAR (cachelist
, Qt
);
7414 tem
= XCAR (cachelist
);
7421 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7423 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7426 def
= XCAR (prefix
);
7427 prefix
= XCDR (prefix
);
7430 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7432 if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7434 if (newcache
/* Always check first time. */
7435 /* Should we check everything when precomputing key
7437 /* If something had no key binding before, don't recheck it
7438 because that is too slow--except if we have a list of
7439 rebound commands in Vdefine_key_rebound_commands, do
7440 recheck any command that appears in that list. */
7441 || (CONSP (Vdefine_key_rebound_commands
)
7442 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7445 /* We had a saved key. Is it still bound to the command? */
7448 /* If the command is an alias for another
7449 (such as lmenu.el set it up), check if the
7450 original command matches the cached command. */
7451 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7452 chkcache
= 1; /* Need to recompute key binding. */
7456 /* Recompute equivalent key binding. If the command is an alias
7457 for another (such as lmenu.el set it up), see if the original
7458 command name has equivalent keys. Otherwise look up the
7459 specified command itself. We don't try both, because that
7460 makes lmenu menus slow. */
7462 && SYMBOLP (XSYMBOL (def
)->function
)
7463 && ! NILP (Fget (def
, Qmenu_alias
)))
7464 def
= XSYMBOL (def
)->function
;
7465 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7466 XSETCAR (cachelist
, tem
);
7469 XSETCDR (cachelist
, Qnil
);
7473 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7475 tem
= XCAR (cachelist
);
7479 newcache
= chkcache
;
7482 tem
= Fkey_description (tem
, Qnil
);
7485 if (STRINGP (XCAR (prefix
)))
7486 tem
= concat2 (XCAR (prefix
), tem
);
7487 if (STRINGP (XCDR (prefix
)))
7488 tem
= concat2 (tem
, XCDR (prefix
));
7490 XSETCDR (cachelist
, tem
);
7494 tem
= XCDR (cachelist
);
7495 if (newcache
&& !NILP (tem
))
7497 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7498 XSETCDR (cachelist
, tem
);
7501 /* If we only want to precompute equivalent key bindings, stop here. */
7505 /* If we have an equivalent key binding, use that. */
7506 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7508 /* Include this when menu help is implemented.
7509 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7510 if (!(NILP (tem) || STRINGP (tem)))
7512 tem = menu_item_eval_property (tem);
7515 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7519 /* Handle radio buttons or toggle boxes. */
7520 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7522 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7523 = menu_item_eval_property (tem
);
7530 /***********************************************************************
7532 ***********************************************************************/
7534 /* A vector holding tool bar items while they are parsed in function
7535 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7538 static Lisp_Object tool_bar_items_vector
;
7540 /* A vector holding the result of parse_tool_bar_item. Layout is like
7541 the one for a single item in tool_bar_items_vector. */
7543 static Lisp_Object tool_bar_item_properties
;
7545 /* Next free index in tool_bar_items_vector. */
7547 static int ntool_bar_items
;
7549 /* The symbols `tool-bar', and `:image'. */
7551 extern Lisp_Object Qtool_bar
;
7552 Lisp_Object QCimage
;
7554 /* Function prototypes. */
7556 static void init_tool_bar_items
P_ ((Lisp_Object
));
7557 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7558 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7559 static void append_tool_bar_item
P_ ((void));
7562 /* Return a vector of tool bar items for keymaps currently in effect.
7563 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7564 tool bar items found. */
7567 tool_bar_items (reuse
, nitems
)
7578 /* In order to build the menus, we need to call the keymap
7579 accessors. They all call QUIT. But this function is called
7580 during redisplay, during which a quit is fatal. So inhibit
7581 quitting while building the menus. We do this instead of
7582 specbind because (1) errors will clear it anyway and (2) this
7583 avoids risk of specpdl overflow. */
7584 oquit
= Vinhibit_quit
;
7587 /* Initialize tool_bar_items_vector and protect it from GC. */
7588 init_tool_bar_items (reuse
);
7590 /* Build list of keymaps in maps. Set nmaps to the number of maps
7593 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7594 if (!NILP (Voverriding_local_map_menu_flag
))
7596 /* Yes, use them (if non-nil) as well as the global map. */
7597 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7599 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7600 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7601 if (!NILP (Voverriding_local_map
))
7602 maps
[nmaps
++] = Voverriding_local_map
;
7606 /* No, so use major and minor mode keymaps and keymap property.
7607 Note that tool-bar bindings in the local-map and keymap
7608 properties may not work reliable, as they are only
7609 recognized when the tool-bar (or mode-line) is updated,
7610 which does not normally happen after every command. */
7613 nminor
= current_minor_maps (NULL
, &tmaps
);
7614 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7616 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7617 maps
[nmaps
++] = tem
;
7618 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7620 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7623 /* Add global keymap at the end. */
7624 maps
[nmaps
++] = current_global_map
;
7626 /* Process maps in reverse order and look up in each map the prefix
7628 for (i
= nmaps
- 1; i
>= 0; --i
)
7629 if (!NILP (maps
[i
]))
7633 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7638 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7639 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7641 Lisp_Object keydef
= XCAR (tail
);
7643 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7648 Vinhibit_quit
= oquit
;
7649 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7650 return tool_bar_items_vector
;
7654 /* Process the definition of KEY which is DEF. */
7657 process_tool_bar_item (key
, def
)
7658 Lisp_Object key
, def
;
7661 extern Lisp_Object Qundefined
;
7662 struct gcpro gcpro1
, gcpro2
;
7664 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7668 if (EQ (def
, Qundefined
))
7670 /* If a map has an explicit `undefined' as definition,
7671 discard any previously made item. */
7672 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7674 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7676 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7678 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7679 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7680 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7681 * sizeof (Lisp_Object
)));
7682 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7687 else if (parse_tool_bar_item (key
, def
))
7688 /* Append a new tool bar item to tool_bar_items_vector. Accept
7689 more than one definition for the same key. */
7690 append_tool_bar_item ();
7696 /* Parse a tool bar item specification ITEM for key KEY and return the
7697 result in tool_bar_item_properties. Value is zero if ITEM is
7700 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7702 CAPTION is the caption of the item, If it's not a string, it is
7703 evaluated to get a string.
7705 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7706 as binding are currently ignored.
7708 The following properties are recognized:
7712 FORM is evaluated and specifies whether the tool bar item is
7713 enabled or disabled.
7717 FORM is evaluated and specifies whether the tool bar item is visible.
7719 - `:filter FUNCTION'
7721 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7722 result is stored as the new binding.
7724 - `:button (TYPE SELECTED)'
7726 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7727 and specifies whether the button is selected (pressed) or not.
7731 IMAGES is either a single image specification or a vector of four
7732 image specifications. See enum tool_bar_item_images.
7734 - `:help HELP-STRING'.
7736 Gives a help string to display for the tool bar item. */
7739 parse_tool_bar_item (key
, item
)
7740 Lisp_Object key
, item
;
7742 /* Access slot with index IDX of vector tool_bar_item_properties. */
7743 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7745 Lisp_Object filter
= Qnil
;
7746 Lisp_Object caption
;
7749 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7750 Rule out items that aren't lists, don't start with
7751 `menu-item' or whose rest following `tool-bar-item' is not a
7754 || !EQ (XCAR (item
), Qmenu_item
)
7755 || (item
= XCDR (item
),
7759 /* Create tool_bar_item_properties vector if necessary. Reset it to
7761 if (VECTORP (tool_bar_item_properties
))
7763 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7767 tool_bar_item_properties
7768 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7771 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7772 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7774 /* Get the caption of the item. If the caption is not a string,
7775 evaluate it to get a string. If we don't get a string, skip this
7777 caption
= XCAR (item
);
7778 if (!STRINGP (caption
))
7780 caption
= menu_item_eval_property (caption
);
7781 if (!STRINGP (caption
))
7784 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7786 /* Give up if rest following the caption is not a list. */
7791 /* Store the binding. */
7792 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7795 /* Ignore cached key binding, if any. */
7796 if (CONSP (item
) && CONSP (XCAR (item
)))
7799 /* Process the rest of the properties. */
7800 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7802 Lisp_Object key
, value
;
7805 value
= XCAR (XCDR (item
));
7807 if (EQ (key
, QCenable
))
7808 /* `:enable FORM'. */
7809 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7810 else if (EQ (key
, QCvisible
))
7812 /* `:visible FORM'. If got a visible property and that
7813 evaluates to nil then ignore this item. */
7814 if (NILP (menu_item_eval_property (value
)))
7817 else if (EQ (key
, QChelp
))
7818 /* `:help HELP-STRING'. */
7819 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7820 else if (EQ (key
, QCfilter
))
7821 /* ':filter FORM'. */
7823 else if (EQ (key
, QCbutton
) && CONSP (value
))
7825 /* `:button (TYPE . SELECTED)'. */
7826 Lisp_Object type
, selected
;
7828 type
= XCAR (value
);
7829 selected
= XCDR (value
);
7830 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7832 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7833 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7836 else if (EQ (key
, QCimage
)
7838 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7839 /* Value is either a single image specification or a vector
7840 of 4 such specifications for the different button states. */
7841 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7844 /* If got a filter apply it on binding. */
7846 PROP (TOOL_BAR_ITEM_BINDING
)
7847 = menu_item_eval_property (list2 (filter
,
7849 PROP (TOOL_BAR_ITEM_BINDING
))));
7851 /* See if the binding is a keymap. Give up if it is. */
7852 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7855 /* Enable or disable selection of item. */
7856 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7857 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7858 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7860 /* Handle radio buttons or toggle boxes. */
7861 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7862 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7863 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7871 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7872 that can be reused. */
7875 init_tool_bar_items (reuse
)
7878 if (VECTORP (reuse
))
7879 tool_bar_items_vector
= reuse
;
7881 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7882 ntool_bar_items
= 0;
7886 /* Append parsed tool bar item properties from
7887 tool_bar_item_properties */
7890 append_tool_bar_item ()
7892 Lisp_Object
*to
, *from
;
7894 /* Enlarge tool_bar_items_vector if necessary. */
7895 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7896 >= XVECTOR (tool_bar_items_vector
)->size
)
7898 Lisp_Object new_vector
;
7899 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7901 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7902 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7903 XVECTOR (new_vector
)->contents
,
7904 old_size
* sizeof (Lisp_Object
));
7905 tool_bar_items_vector
= new_vector
;
7908 /* Append entries from tool_bar_item_properties to the end of
7909 tool_bar_items_vector. */
7910 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7911 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7912 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7913 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7920 /* Read a character using menus based on maps in the array MAPS.
7921 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7922 Return t if we displayed a menu but the user rejected it.
7924 PREV_EVENT is the previous input event, or nil if we are reading
7925 the first event of a key sequence.
7927 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7928 if we used a mouse menu to read the input, or zero otherwise. If
7929 USED_MOUSE_MENU is null, we don't dereference it.
7931 The prompting is done based on the prompt-string of the map
7932 and the strings associated with various map elements.
7934 This can be done with X menus or with menus put in the minibuf.
7935 These are done in different ways, depending on how the input will be read.
7936 Menus using X are done after auto-saving in read-char, getting the input
7937 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7938 and do auto-saving in the inner call of read_char. */
7941 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7944 Lisp_Object prev_event
;
7945 int *used_mouse_menu
;
7948 register Lisp_Object name
= Qnil
;
7950 if (used_mouse_menu
)
7951 *used_mouse_menu
= 0;
7953 /* Use local over global Menu maps */
7955 if (! menu_prompting
)
7958 /* Optionally disregard all but the global map. */
7959 if (inhibit_local_menu_bar_menus
)
7961 maps
+= (nmaps
- 1);
7965 /* Get the menu name from the first map that has one (a prompt string). */
7966 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7968 name
= Fkeymap_prompt (maps
[mapno
]);
7973 /* If we don't have any menus, just read a character normally. */
7974 if (!STRINGP (name
))
7978 /* If we got to this point via a mouse click,
7979 use a real menu for mouse selection. */
7980 if (EVENT_HAS_PARAMETERS (prev_event
)
7981 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7982 && !EQ (XCAR (prev_event
), Qtool_bar
))
7984 /* Display the menu and get the selection. */
7985 Lisp_Object
*realmaps
7986 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
7990 /* Use the maps that are not nil. */
7991 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7992 if (!NILP (maps
[mapno
]))
7993 realmaps
[nmaps1
++] = maps
[mapno
];
7995 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
8000 record_menu_key (XCAR (value
));
8002 /* If we got multiple events, unread all but
8004 There is no way to prevent those unread events
8005 from showing up later in last_nonmenu_event.
8006 So turn symbol and integer events into lists,
8007 to indicate that they came from a mouse menu,
8008 so that when present in last_nonmenu_event
8009 they won't confuse things. */
8010 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8012 record_menu_key (XCAR (tem
));
8013 if (SYMBOLP (XCAR (tem
))
8014 || INTEGERP (XCAR (tem
)))
8015 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8018 /* If we got more than one event, put all but the first
8019 onto this list to be read later.
8020 Return just the first event now. */
8021 Vunread_command_events
8022 = nconc2 (XCDR (value
), Vunread_command_events
);
8023 value
= XCAR (value
);
8025 else if (NILP (value
))
8027 if (used_mouse_menu
)
8028 *used_mouse_menu
= 1;
8031 #endif /* HAVE_MENUS */
8035 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8036 We make this bigger when necessary, and never free it. */
8037 static char *read_char_minibuf_menu_text
;
8038 /* Size of that buffer. */
8039 static int read_char_minibuf_menu_width
;
8042 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8048 register Lisp_Object name
;
8050 /* FIXME: Use the minibuffer's frame width. */
8051 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8054 Lisp_Object rest
, vector
;
8060 if (! menu_prompting
)
8063 /* Make sure we have a big enough buffer for the menu text. */
8064 if (read_char_minibuf_menu_text
== 0)
8066 read_char_minibuf_menu_width
= width
+ 4;
8067 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8069 else if (width
+ 4 > read_char_minibuf_menu_width
)
8071 read_char_minibuf_menu_width
= width
+ 4;
8072 read_char_minibuf_menu_text
8073 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8075 menu
= read_char_minibuf_menu_text
;
8077 /* Get the menu name from the first map that has one (a prompt string). */
8078 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8080 name
= Fkeymap_prompt (maps
[mapno
]);
8085 /* If we don't have any menus, just read a character normally. */
8086 if (!STRINGP (name
))
8089 /* Prompt string always starts with map's prompt, and a space. */
8090 strcpy (menu
, SDATA (name
));
8091 nlength
= SBYTES (name
);
8092 menu
[nlength
++] = ':';
8093 menu
[nlength
++] = ' ';
8096 /* Start prompting at start of first map. */
8100 /* Present the documented bindings, a line at a time. */
8107 Lisp_Object orig_defn_macro
;
8109 /* Loop over elements of map. */
8114 /* If reached end of map, start at beginning of next map. */
8118 /* At end of last map, wrap around to first map if just starting,
8119 or end this line if already have something on it. */
8123 if (notfirst
|| nobindings
) break;
8128 /* Look at the next element of the map. */
8130 elt
= XVECTOR (vector
)->contents
[idx
];
8132 elt
= Fcar_safe (rest
);
8134 if (idx
< 0 && VECTORP (elt
))
8136 /* If we found a dense table in the keymap,
8137 advanced past it, but start scanning its contents. */
8138 rest
= Fcdr_safe (rest
);
8144 /* An ordinary element. */
8145 Lisp_Object event
, tem
;
8149 event
= Fcar_safe (elt
); /* alist */
8150 elt
= Fcdr_safe (elt
);
8154 XSETINT (event
, idx
); /* vector */
8157 /* Ignore the element if it has no prompt string. */
8158 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8160 /* 1 if the char to type matches the string. */
8162 Lisp_Object upcased_event
, downcased_event
;
8163 Lisp_Object desc
= Qnil
;
8165 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8167 upcased_event
= Fupcase (event
);
8168 downcased_event
= Fdowncase (event
);
8169 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8170 || XINT (downcased_event
) == SREF (s
, 0));
8172 desc
= Fsingle_key_description (event
, Qnil
);
8174 #if 0 /* It is redundant to list the equivalent key bindings because
8175 the prefix is what the user has already typed. */
8177 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8179 /* Insert equivalent keybinding. */
8180 s
= concat2 (s
, tem
);
8183 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8184 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8186 /* Insert button prefix. */
8187 Lisp_Object selected
8188 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8189 if (EQ (tem
, QCradio
))
8190 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8192 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8193 s
= concat2 (tem
, s
);
8197 /* If we have room for the prompt string, add it to this line.
8198 If this is the first on the line, always add it. */
8199 if ((SCHARS (s
) + i
+ 2
8200 + (char_matches
? 0 : SCHARS (desc
) + 3))
8206 /* Punctuate between strings. */
8209 strcpy (menu
+ i
, ", ");
8215 /* If the char to type doesn't match the string's
8216 first char, explicitly show what char to type. */
8219 /* Add as much of string as fits. */
8220 thiswidth
= SCHARS (desc
);
8221 if (thiswidth
+ i
> width
)
8222 thiswidth
= width
- i
;
8223 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8225 strcpy (menu
+ i
, " = ");
8229 /* Add as much of string as fits. */
8230 thiswidth
= SCHARS (s
);
8231 if (thiswidth
+ i
> width
)
8232 thiswidth
= width
- i
;
8233 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8239 /* If this element does not fit, end the line now,
8240 and save the element for the next line. */
8241 strcpy (menu
+ i
, "...");
8246 /* Move past this element. */
8247 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8248 /* Handle reaching end of dense table. */
8253 rest
= Fcdr_safe (rest
);
8257 /* Prompt with that and read response. */
8258 message2_nolog (menu
, strlen (menu
),
8259 ! NILP (current_buffer
->enable_multibyte_characters
));
8261 /* Make believe its not a keyboard macro in case the help char
8262 is pressed. Help characters are not recorded because menu prompting
8263 is not used on replay.
8265 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8266 current_kboard
->defining_kbd_macro
= Qnil
;
8268 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8269 while (BUFFERP (obj
));
8270 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8272 if (!INTEGERP (obj
))
8277 if (! EQ (obj
, menu_prompt_more_char
)
8278 && (!INTEGERP (menu_prompt_more_char
)
8279 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8281 if (!NILP (current_kboard
->defining_kbd_macro
))
8282 store_kbd_macro_char (obj
);
8285 /* Help char - go round again */
8289 /* Reading key sequences. */
8291 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8292 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8293 keymap, or nil otherwise. Return the index of the first keymap in
8294 which KEY has any binding, or NMAPS if no map has a binding.
8296 If KEY is a meta ASCII character, treat it like meta-prefix-char
8297 followed by the corresponding non-meta character. Keymaps in
8298 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8301 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8304 NEXT may be the same array as CURRENT. */
8307 follow_key (key
, nmaps
, current
, defs
, next
)
8309 Lisp_Object
*current
, *defs
, *next
;
8312 int i
, first_binding
;
8314 first_binding
= nmaps
;
8315 for (i
= nmaps
- 1; i
>= 0; i
--)
8317 if (! NILP (current
[i
]))
8319 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8320 if (! NILP (defs
[i
]))
8327 /* Given the set of bindings we've found, produce the next set of maps. */
8328 if (first_binding
< nmaps
)
8329 for (i
= 0; i
< nmaps
; i
++)
8330 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8332 return first_binding
;
8335 /* Structure used to keep track of partial application of key remapping
8336 such as Vfunction_key_map and Vkey_translation_map. */
8337 typedef struct keyremap
8339 Lisp_Object map
, parent
;
8343 /* Lookup KEY in MAP.
8344 MAP is a keymap mapping keys to key vectors or functions.
8345 If the mapping is a function and DO_FUNCTION is non-zero, then
8346 the function is called with PROMPT as parameter and its return
8347 value is used as the return value of this function (after checking
8348 that it is indeed a vector). */
8351 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8352 Lisp_Object map
, key
, prompt
;
8357 next
= access_keymap (map
, key
, 1, 0, 1);
8359 /* Handle symbol with autoload definition. */
8360 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8361 && CONSP (XSYMBOL (next
)->function
)
8362 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8363 do_autoload (XSYMBOL (next
)->function
, next
);
8365 /* Handle a symbol whose function definition is a keymap
8367 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8368 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8369 || KEYMAPP (XSYMBOL (next
)->function
)))
8370 next
= XSYMBOL (next
)->function
;
8372 /* If the keymap gives a function, not an
8373 array, then call the function with one arg and use
8374 its value instead. */
8375 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8380 next
= call1 (next
, prompt
);
8381 /* If the function returned something invalid,
8382 barf--don't ignore it.
8383 (To ignore it safely, we would need to gcpro a bunch of
8384 other variables.) */
8385 if (! (VECTORP (next
) || STRINGP (next
)))
8386 error ("Function %s returns invalid key sequence", tem
);
8391 /* Do one step of the key remapping used for function-key-map and
8392 key-translation-map:
8393 KEYBUF is the buffer holding the input events.
8394 BUFSIZE is its maximum size.
8395 FKEY is a pointer to the keyremap structure to use.
8396 INPUT is the index of the last element in KEYBUF.
8397 DOIT if non-zero says that the remapping can actually take place.
8398 DIFF is used to return the number of keys added/removed by the remapping.
8399 PARENT is the root of the keymap.
8400 PROMPT is the prompt to use if the remapping happens through a function.
8401 The return value is non-zero if the remapping actually took place. */
8404 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8405 Lisp_Object
*keybuf
, prompt
;
8407 int input
, doit
, *diff
, bufsize
;
8409 Lisp_Object next
, key
;
8411 key
= keybuf
[fkey
->end
++];
8412 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8414 /* If keybuf[fkey->start..fkey->end] is bound in the
8415 map and we're in a position to do the key remapping, replace it with
8416 the binding and restart with fkey->start at the end. */
8417 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8419 int len
= XFASTINT (Flength (next
));
8422 *diff
= len
- (fkey
->end
- fkey
->start
);
8424 if (input
+ *diff
>= bufsize
)
8425 error ("Key sequence too long");
8427 /* Shift the keys that follow fkey->end. */
8429 for (i
= fkey
->end
; i
< input
; i
++)
8430 keybuf
[i
+ *diff
] = keybuf
[i
];
8432 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8433 keybuf
[i
+ *diff
] = keybuf
[i
];
8434 /* Overwrite the old keys with the new ones. */
8435 for (i
= 0; i
< len
; i
++)
8436 keybuf
[fkey
->start
+ i
]
8437 = Faref (next
, make_number (i
));
8439 fkey
->start
= fkey
->end
+= *diff
;
8440 fkey
->map
= fkey
->parent
;
8445 fkey
->map
= get_keymap (next
, 0, 1);
8447 /* If we no longer have a bound suffix, try a new position for
8449 if (!CONSP (fkey
->map
))
8451 fkey
->end
= ++fkey
->start
;
8452 fkey
->map
= fkey
->parent
;
8457 /* Read a sequence of keys that ends with a non prefix character,
8458 storing it in KEYBUF, a buffer of size BUFSIZE.
8460 Return the length of the key sequence stored.
8461 Return -1 if the user rejected a command menu.
8463 Echo starting immediately unless `prompt' is 0.
8465 Where a key sequence ends depends on the currently active keymaps.
8466 These include any minor mode keymaps active in the current buffer,
8467 the current buffer's local map, and the global map.
8469 If a key sequence has no other bindings, we check Vfunction_key_map
8470 to see if some trailing subsequence might be the beginning of a
8471 function key's sequence. If so, we try to read the whole function
8472 key, and substitute its symbolic name into the key sequence.
8474 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8475 `double-' events into similar click events, if that would make them
8476 bound. We try to turn `triple-' events first into `double-' events,
8479 If we get a mouse click in a mode line, vertical divider, or other
8480 non-text area, we treat the click as if it were prefixed by the
8481 symbol denoting that area - `mode-line', `vertical-line', or
8484 If the sequence starts with a mouse click, we read the key sequence
8485 with respect to the buffer clicked on, not the current buffer.
8487 If the user switches frames in the midst of a key sequence, we put
8488 off the switch-frame event until later; the next call to
8489 read_char will return it.
8491 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8492 from the selected window's buffer. */
8495 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8496 can_return_switch_frame
, fix_current_buffer
)
8497 Lisp_Object
*keybuf
;
8500 int dont_downcase_last
;
8501 int can_return_switch_frame
;
8502 int fix_current_buffer
;
8504 volatile Lisp_Object from_string
;
8505 volatile int count
= SPECPDL_INDEX ();
8507 /* How many keys there are in the current key sequence. */
8510 /* The length of the echo buffer when we started reading, and
8511 the length of this_command_keys when we started reading. */
8512 volatile int echo_start
;
8513 volatile int keys_start
;
8515 /* The number of keymaps we're scanning right now, and the number of
8516 keymaps we have allocated space for. */
8518 volatile int nmaps_allocated
= 0;
8520 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8521 the current keymaps. */
8522 Lisp_Object
*volatile defs
= NULL
;
8524 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8525 in the current keymaps, or nil where it is not a prefix. */
8526 Lisp_Object
*volatile submaps
= NULL
;
8528 /* The local map to start out with at start of key sequence. */
8529 volatile Lisp_Object orig_local_map
;
8531 /* The map from the `keymap' property to start out with at start of
8533 volatile Lisp_Object orig_keymap
;
8535 /* 1 if we have already considered switching to the local-map property
8536 of the place where a mouse click occurred. */
8537 volatile int localized_local_map
= 0;
8539 /* The index in defs[] of the first keymap that has a binding for
8540 this key sequence. In other words, the lowest i such that
8541 defs[i] is non-nil. */
8542 volatile int first_binding
;
8543 /* Index of the first key that has no binding.
8544 It is useless to try fkey.start larger than that. */
8545 volatile int first_unbound
;
8547 /* If t < mock_input, then KEYBUF[t] should be read as the next
8550 We use this to recover after recognizing a function key. Once we
8551 realize that a suffix of the current key sequence is actually a
8552 function key's escape sequence, we replace the suffix with the
8553 function key's binding from Vfunction_key_map. Now keybuf
8554 contains a new and different key sequence, so the echo area,
8555 this_command_keys, and the submaps and defs arrays are wrong. In
8556 this situation, we set mock_input to t, set t to 0, and jump to
8557 restart_sequence; the loop will read keys from keybuf up until
8558 mock_input, thus rebuilding the state; and then it will resume
8559 reading characters from the keyboard. */
8560 volatile int mock_input
= 0;
8562 /* If the sequence is unbound in submaps[], then
8563 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8564 and fkey.map is its binding.
8566 These might be > t, indicating that all function key scanning
8567 should hold off until t reaches them. We do this when we've just
8568 recognized a function key, to avoid searching for the function
8569 key's again in Vfunction_key_map. */
8570 volatile keyremap fkey
;
8572 /* Likewise, for key_translation_map. */
8573 volatile keyremap keytran
;
8575 /* If we receive a `switch-frame' or `select-window' event in the middle of
8576 a key sequence, we put it off for later.
8577 While we're reading, we keep the event here. */
8578 volatile Lisp_Object delayed_switch_frame
;
8580 /* See the comment below... */
8581 #if defined (GOBBLE_FIRST_EVENT)
8582 Lisp_Object first_event
;
8585 volatile Lisp_Object original_uppercase
;
8586 volatile int original_uppercase_position
= -1;
8588 /* Gets around Microsoft compiler limitations. */
8591 struct buffer
*starting_buffer
;
8593 /* List of events for which a fake prefix key has been generated. */
8594 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8596 #if defined (GOBBLE_FIRST_EVENT)
8600 struct gcpro gcpro1
;
8602 GCPRO1 (fake_prefixed_keys
);
8603 raw_keybuf_count
= 0;
8605 last_nonmenu_event
= Qnil
;
8607 delayed_switch_frame
= Qnil
;
8608 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8609 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8610 /* If there is no translation-map, turn off scanning. */
8611 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8612 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8617 echo_prompt (prompt
);
8618 else if (cursor_in_echo_area
8619 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8620 && NILP (Fzerop (Vecho_keystrokes
)))
8621 /* This doesn't put in a dash if the echo buffer is empty, so
8622 you don't always see a dash hanging out in the minibuffer. */
8626 /* Record the initial state of the echo area and this_command_keys;
8627 we will need to restore them if we replay a key sequence. */
8629 echo_start
= echo_length ();
8630 keys_start
= this_command_key_count
;
8631 this_single_command_key_start
= keys_start
;
8633 #if defined (GOBBLE_FIRST_EVENT)
8634 /* This doesn't quite work, because some of the things that read_char
8635 does cannot safely be bypassed. It seems too risky to try to make
8638 /* Read the first char of the sequence specially, before setting
8639 up any keymaps, in case a filter runs and switches buffers on us. */
8640 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8642 #endif /* GOBBLE_FIRST_EVENT */
8644 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8645 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8648 /* We jump here when the key sequence has been thoroughly changed, and
8649 we need to rescan it starting from the beginning. When we jump here,
8650 keybuf[0..mock_input] holds the sequence we should reread. */
8653 starting_buffer
= current_buffer
;
8654 first_unbound
= bufsize
+ 1;
8656 /* Build our list of keymaps.
8657 If we recognize a function key and replace its escape sequence in
8658 keybuf with its symbol, or if the sequence starts with a mouse
8659 click and we need to switch buffers, we jump back here to rebuild
8660 the initial keymaps from the current buffer. */
8663 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8664 || !NILP (Voverriding_local_map
))
8666 if (3 > nmaps_allocated
)
8668 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8669 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8670 nmaps_allocated
= 3;
8672 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8673 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8674 if (!NILP (Voverriding_local_map
))
8675 submaps
[nmaps
++] = Voverriding_local_map
;
8683 nminor
= current_minor_maps (0, &maps
);
8684 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8686 if (total
> nmaps_allocated
)
8688 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8689 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8690 nmaps_allocated
= total
;
8693 if (!NILP (orig_keymap
))
8694 submaps
[nmaps
++] = orig_keymap
;
8696 bcopy (maps
, (void *) (submaps
+ nmaps
),
8697 nminor
* sizeof (submaps
[0]));
8701 submaps
[nmaps
++] = orig_local_map
;
8703 submaps
[nmaps
++] = current_global_map
;
8705 /* Find an accurate initial value for first_binding. */
8706 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8707 if (! NILP (submaps
[first_binding
]))
8710 /* Start from the beginning in keybuf. */
8713 /* These are no-ops the first time through, but if we restart, they
8714 revert the echo area and this_command_keys to their original state. */
8715 this_command_key_count
= keys_start
;
8716 if (INTERACTIVE
&& t
< mock_input
)
8717 echo_truncate (echo_start
);
8719 /* If the best binding for the current key sequence is a keymap, or
8720 we may be looking at a function key's escape sequence, keep on
8722 while (first_binding
< nmaps
8723 /* Keep reading as long as there's a prefix binding. */
8724 ? !NILP (submaps
[first_binding
])
8725 /* Don't return in the middle of a possible function key sequence,
8726 if the only bindings we found were via case conversion.
8727 Thus, if ESC O a has a function-key-map translation
8728 and ESC o has a binding, don't return after ESC O,
8729 so that we can translate ESC O plus the next character. */
8730 : (fkey
.start
< t
|| keytran
.start
< t
))
8733 int used_mouse_menu
= 0;
8735 /* Where the last real key started. If we need to throw away a
8736 key that has expanded into more than one element of keybuf
8737 (say, a mouse click on the mode line which is being treated
8738 as [mode-line (mouse-...)], then we backtrack to this point
8740 volatile int last_real_key_start
;
8742 /* These variables are analogous to echo_start and keys_start;
8743 while those allow us to restart the entire key sequence,
8744 echo_local_start and keys_local_start allow us to throw away
8746 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8748 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8749 eassert (fkey
.start
<= fkey
.end
);
8750 eassert (keytran
.start
<= keytran
.end
);
8751 /* key-translation-map is applied *after* function-key-map. */
8752 eassert (keytran
.end
<= fkey
.start
);
8754 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8755 { /* The prefix upto first_unbound has no binding and has
8756 no translation left to do either, so we know it's unbound.
8757 If we don't stop now, we risk staying here indefinitely
8758 (if the user keeps entering fkey or keytran prefixes
8759 like C-c ESC ESC ESC ESC ...) */
8761 for (i
= first_unbound
+ 1; i
< t
; i
++)
8762 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8763 mock_input
= t
- first_unbound
- 1;
8764 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8765 fkey
.map
= fkey
.parent
;
8766 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8767 keytran
.map
= keytran
.parent
;
8768 goto replay_sequence
;
8772 error ("Key sequence too long");
8775 echo_local_start
= echo_length ();
8776 keys_local_start
= this_command_key_count
;
8777 local_first_binding
= first_binding
;
8780 /* These are no-ops, unless we throw away a keystroke below and
8781 jumped back up to replay_key; in that case, these restore the
8782 variables to their original state, allowing us to replay the
8784 if (INTERACTIVE
&& t
< mock_input
)
8785 echo_truncate (echo_local_start
);
8786 this_command_key_count
= keys_local_start
;
8787 first_binding
= local_first_binding
;
8789 /* By default, assume each event is "real". */
8790 last_real_key_start
= t
;
8792 /* Does mock_input indicate that we are re-reading a key sequence? */
8796 add_command_key (key
);
8797 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8798 && NILP (Fzerop (Vecho_keystrokes
)))
8802 /* If not, we should actually read a character. */
8807 KBOARD
*interrupted_kboard
= current_kboard
;
8808 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8809 if (setjmp (wrong_kboard_jmpbuf
))
8811 if (!NILP (delayed_switch_frame
))
8813 interrupted_kboard
->kbd_queue
8814 = Fcons (delayed_switch_frame
,
8815 interrupted_kboard
->kbd_queue
);
8816 delayed_switch_frame
= Qnil
;
8819 interrupted_kboard
->kbd_queue
8820 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8822 /* If the side queue is non-empty, ensure it begins with a
8823 switch-frame, so we'll replay it in the right context. */
8824 if (CONSP (interrupted_kboard
->kbd_queue
)
8825 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8826 !(EVENT_HAS_PARAMETERS (key
)
8827 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8831 XSETFRAME (frame
, interrupted_frame
);
8832 interrupted_kboard
->kbd_queue
8833 = Fcons (make_lispy_switch_frame (frame
),
8834 interrupted_kboard
->kbd_queue
);
8837 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8838 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8839 goto replay_sequence
;
8842 key
= read_char (NILP (prompt
), nmaps
,
8843 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8847 /* read_char returns t when it shows a menu and the user rejects it.
8851 unbind_to (count
, Qnil
);
8856 /* read_char returns -1 at the end of a macro.
8857 Emacs 18 handles this by returning immediately with a
8858 zero, so that's what we'll do. */
8859 if (INTEGERP (key
) && XINT (key
) == -1)
8862 /* The Microsoft C compiler can't handle the goto that
8868 /* If the current buffer has been changed from under us, the
8869 keymap may have changed, so replay the sequence. */
8872 timer_resume_idle ();
8875 /* Reset the current buffer from the selected window
8876 in case something changed the former and not the latter.
8877 This is to be more consistent with the behavior
8878 of the command_loop_1. */
8879 if (fix_current_buffer
)
8881 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8883 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8884 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8887 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8888 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8889 goto replay_sequence
;
8892 /* If we have a quit that was typed in another frame, and
8893 quit_throw_to_read_char switched buffers,
8894 replay to get the right keymap. */
8896 && XINT (key
) == quit_char
8897 && current_buffer
!= starting_buffer
)
8900 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8904 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8905 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8906 goto replay_sequence
;
8911 if (EVENT_HAS_PARAMETERS (key
)
8912 /* Either a `switch-frame' or a `select-window' event. */
8913 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8915 /* If we're at the beginning of a key sequence, and the caller
8916 says it's okay, go ahead and return this event. If we're
8917 in the midst of a key sequence, delay it until the end. */
8918 if (t
> 0 || !can_return_switch_frame
)
8920 delayed_switch_frame
= key
;
8926 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8929 /* Clicks in non-text areas get prefixed by the symbol
8930 in their CHAR-ADDRESS field. For example, a click on
8931 the mode line is prefixed by the symbol `mode-line'.
8933 Furthermore, key sequences beginning with mouse clicks
8934 are read using the keymaps of the buffer clicked on, not
8935 the current buffer. So we may have to switch the buffer
8938 When we turn one event into two events, we must make sure
8939 that neither of the two looks like the original--so that,
8940 if we replay the events, they won't be expanded again.
8941 If not for this, such reexpansion could happen either here
8942 or when user programs play with this-command-keys. */
8943 if (EVENT_HAS_PARAMETERS (key
))
8948 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8949 if (EQ (kind
, Qmouse_click
))
8951 Lisp_Object window
, posn
;
8953 window
= POSN_WINDOW (EVENT_START (key
));
8954 posn
= POSN_POSN (EVENT_START (key
));
8957 || (!NILP (fake_prefixed_keys
)
8958 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8960 /* We're looking a second time at an event for which
8961 we generated a fake prefix key. Set
8962 last_real_key_start appropriately. */
8964 last_real_key_start
= t
- 1;
8967 /* Key sequences beginning with mouse clicks are
8968 read using the keymaps in the buffer clicked on,
8969 not the current buffer. If we're at the
8970 beginning of a key sequence, switch buffers. */
8971 if (last_real_key_start
== 0
8973 && BUFFERP (XWINDOW (window
)->buffer
)
8974 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8976 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8980 /* Arrange to go back to the original buffer once we're
8981 done reading the key sequence. Note that we can't
8982 use save_excursion_{save,restore} here, because they
8983 save point as well as the current buffer; we don't
8984 want to save point, because redisplay may change it,
8985 to accommodate a Fset_window_start or something. We
8986 don't want to do this at the top of the function,
8987 because we may get input from a subprocess which
8988 wants to change the selected window and stuff (say,
8990 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
8992 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8994 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
8995 orig_local_map
= get_local_map (PT
, current_buffer
,
8997 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8998 goto replay_sequence
;
9001 /* For a mouse click, get the local text-property keymap
9002 of the place clicked on, rather than point. */
9003 if (last_real_key_start
== 0
9004 && CONSP (XCDR (key
))
9005 && ! localized_local_map
)
9007 Lisp_Object map_here
, start
, pos
;
9009 localized_local_map
= 1;
9010 start
= EVENT_START (key
);
9012 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9014 pos
= POSN_BUFFER_POSN (start
);
9016 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9018 map_here
= get_local_map (XINT (pos
),
9019 current_buffer
, Qlocal_map
);
9020 if (!EQ (map_here
, orig_local_map
))
9022 orig_local_map
= map_here
;
9026 goto replay_sequence
;
9028 map_here
= get_local_map (XINT (pos
),
9029 current_buffer
, Qkeymap
);
9030 if (!EQ (map_here
, orig_keymap
))
9032 orig_keymap
= map_here
;
9036 goto replay_sequence
;
9042 /* Expand mode-line and scroll-bar events into two events:
9043 use posn as a fake prefix key. */
9045 && (NILP (fake_prefixed_keys
)
9046 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9048 if (t
+ 1 >= bufsize
)
9049 error ("Key sequence too long");
9052 keybuf
[t
+ 1] = key
;
9055 /* Record that a fake prefix key has been generated
9056 for KEY. Don't modify the event; this would
9057 prevent proper action when the event is pushed
9058 back into unread-command-events. */
9059 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9061 /* If on a mode line string with a local keymap,
9062 reconsider the key sequence with that keymap. */
9063 if (string
= POSN_STRING (EVENT_START (key
)),
9064 (CONSP (string
) && STRINGP (XCAR (string
))))
9066 Lisp_Object pos
, map
, map2
;
9068 pos
= XCDR (string
);
9069 string
= XCAR (string
);
9071 && XINT (pos
) < SCHARS (string
))
9073 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9075 orig_local_map
= map
;
9076 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9079 if (!NILP (map
) || !NILP (map2
))
9080 goto replay_sequence
;
9086 else if (NILP (from_string
)
9087 && (string
= POSN_STRING (EVENT_START (key
)),
9088 (CONSP (string
) && STRINGP (XCAR (string
)))))
9090 /* For a click on a string, i.e. overlay string or a
9091 string displayed via the `display' property,
9092 consider `local-map' and `keymap' properties of
9094 Lisp_Object pos
, map
, map2
;
9096 pos
= XCDR (string
);
9097 string
= XCAR (string
);
9099 && XINT (pos
) < SCHARS (string
))
9101 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9103 orig_local_map
= map
;
9104 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9108 if (!NILP (map
) || !NILP (map2
))
9110 from_string
= string
;
9111 goto replay_sequence
;
9116 else if (CONSP (XCDR (key
))
9117 && CONSP (EVENT_START (key
))
9118 && CONSP (XCDR (EVENT_START (key
))))
9122 posn
= POSN_POSN (EVENT_START (key
));
9123 /* Handle menu-bar events:
9124 insert the dummy prefix event `menu-bar'. */
9125 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9127 if (t
+ 1 >= bufsize
)
9128 error ("Key sequence too long");
9132 /* Zap the position in key, so we know that we've
9133 expanded it, and don't try to do so again. */
9134 POSN_SET_POSN (EVENT_START (key
),
9135 Fcons (posn
, Qnil
));
9138 goto replay_sequence
;
9140 else if (CONSP (posn
))
9142 /* We're looking at the second event of a
9143 sequence which we expanded before. Set
9144 last_real_key_start appropriately. */
9145 if (last_real_key_start
== t
&& t
> 0)
9146 last_real_key_start
= t
- 1;
9151 /* We have finally decided that KEY is something we might want
9153 first_binding
= (follow_key (key
,
9154 nmaps
- first_binding
,
9155 submaps
+ first_binding
,
9156 defs
+ first_binding
,
9157 submaps
+ first_binding
)
9160 /* If KEY wasn't bound, we'll try some fallbacks. */
9161 if (first_binding
< nmaps
)
9162 /* This is needed for the following scenario:
9163 event 0: a down-event that gets dropped by calling replay_key.
9164 event 1: some normal prefix like C-h.
9165 After event 0, first_unbound is 0, after event 1 fkey.start
9166 and keytran.start are both 1, so when we see that C-h is bound,
9167 we need to update first_unbound. */
9168 first_unbound
= max (t
+ 1, first_unbound
);
9173 /* Remember the position to put an upper bound on fkey.start. */
9174 first_unbound
= min (t
, first_unbound
);
9176 head
= EVENT_HEAD (key
);
9177 if (help_char_p (head
) && t
> 0)
9179 read_key_sequence_cmd
= Vprefix_help_command
;
9181 last_nonmenu_event
= key
;
9182 /* The Microsoft C compiler can't handle the goto that
9190 Lisp_Object breakdown
;
9193 breakdown
= parse_modifiers (head
);
9194 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9195 /* Attempt to reduce an unbound mouse event to a simpler
9196 event that is bound:
9197 Drags reduce to clicks.
9198 Double-clicks reduce to clicks.
9199 Triple-clicks reduce to double-clicks, then to clicks.
9200 Down-clicks are eliminated.
9201 Double-downs reduce to downs, then are eliminated.
9202 Triple-downs reduce to double-downs, then to downs,
9203 then are eliminated. */
9204 if (modifiers
& (down_modifier
| drag_modifier
9205 | double_modifier
| triple_modifier
))
9207 while (modifiers
& (down_modifier
| drag_modifier
9208 | double_modifier
| triple_modifier
))
9210 Lisp_Object new_head
, new_click
;
9211 if (modifiers
& triple_modifier
)
9212 modifiers
^= (double_modifier
| triple_modifier
);
9213 else if (modifiers
& double_modifier
)
9214 modifiers
&= ~double_modifier
;
9215 else if (modifiers
& drag_modifier
)
9216 modifiers
&= ~drag_modifier
;
9219 /* Dispose of this `down' event by simply jumping
9220 back to replay_key, to get another event.
9222 Note that if this event came from mock input,
9223 then just jumping back to replay_key will just
9224 hand it to us again. So we have to wipe out any
9227 We could delete keybuf[t] and shift everything
9228 after that to the left by one spot, but we'd also
9229 have to fix up any variable that points into
9230 keybuf, and shifting isn't really necessary
9233 Adding prefixes for non-textual mouse clicks
9234 creates two characters of mock input, and both
9235 must be thrown away. If we're only looking at
9236 the prefix now, we can just jump back to
9237 replay_key. On the other hand, if we've already
9238 processed the prefix, and now the actual click
9239 itself is giving us trouble, then we've lost the
9240 state of the keymaps we want to backtrack to, and
9241 we need to replay the whole sequence to rebuild
9244 Beyond that, only function key expansion could
9245 create more than two keys, but that should never
9246 generate mouse events, so it's okay to zero
9247 mock_input in that case too.
9249 FIXME: The above paragraph seems just plain
9250 wrong, if you consider things like
9251 xterm-mouse-mode. -stef
9253 Isn't this just the most wonderful code ever? */
9255 /* If mock_input > t + 1, the above simplification
9256 will actually end up dropping keys on the floor.
9257 This is probably OK for now, but even
9258 if mock_input <= t + 1, we need to adjust fkey
9260 Typical case [header-line down-mouse-N]:
9261 mock_input = 2, t = 1, fkey.end = 1,
9262 last_real_key_start = 0. */
9263 if (fkey
.end
> last_real_key_start
)
9265 fkey
.end
= fkey
.start
9266 = min (last_real_key_start
, fkey
.start
);
9267 fkey
.map
= fkey
.parent
;
9268 if (keytran
.end
> last_real_key_start
)
9270 keytran
.end
= keytran
.start
9271 = min (last_real_key_start
, keytran
.start
);
9272 keytran
.map
= keytran
.parent
;
9275 if (t
== last_real_key_start
)
9282 mock_input
= last_real_key_start
;
9283 goto replay_sequence
;
9288 = apply_modifiers (modifiers
, XCAR (breakdown
));
9290 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9292 /* Look for a binding for this new key. follow_key
9293 promises that it didn't munge submaps the
9294 last time we called it, since key was unbound. */
9296 = (follow_key (new_click
,
9297 nmaps
- local_first_binding
,
9298 submaps
+ local_first_binding
,
9299 defs
+ local_first_binding
,
9300 submaps
+ local_first_binding
)
9301 + local_first_binding
);
9303 /* If that click is bound, go for it. */
9304 if (first_binding
< nmaps
)
9309 /* Otherwise, we'll leave key set to the drag event. */
9316 /* Normally, last_nonmenu_event gets the previous key we read.
9317 But when a mouse popup menu is being used,
9318 we don't update last_nonmenu_event; it continues to hold the mouse
9319 event that preceded the first level of menu. */
9320 if (!used_mouse_menu
)
9321 last_nonmenu_event
= key
;
9323 /* Record what part of this_command_keys is the current key sequence. */
9324 this_single_command_key_start
= this_command_key_count
- t
;
9326 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9327 /* There is a binding and it's not a prefix.
9328 There is thus no function-key in this sequence.
9329 Moving fkey.start is important in this case to allow keytran.start
9330 to go over the sequence before we return (since we keep the
9331 invariant that keytran.end <= fkey.start). */
9334 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9337 /* If the sequence is unbound, see if we can hang a function key
9338 off the end of it. */
9339 /* Continue scan from fkey.end until we find a bound suffix. */
9340 while (fkey
.end
< t
)
9342 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9345 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9346 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9347 max (t
, mock_input
),
9348 /* If there's a binding (i.e.
9349 first_binding >= nmaps) we don't want
9350 to apply this function-key-mapping. */
9351 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9356 mock_input
= diff
+ max (t
, mock_input
);
9357 goto replay_sequence
;
9361 /* Look for this sequence in key-translation-map.
9362 Scan from keytran.end until we find a bound suffix. */
9363 while (keytran
.end
< fkey
.start
)
9365 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9368 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9369 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9374 mock_input
= diff
+ max (t
, mock_input
);
9375 /* Adjust the function-key-map counters. */
9379 goto replay_sequence
;
9383 /* If KEY is not defined in any of the keymaps,
9384 and cannot be part of a function key or translation,
9385 and is an upper case letter
9386 use the corresponding lower-case letter instead. */
9387 if (first_binding
>= nmaps
9388 && fkey
.start
>= t
&& keytran
.start
>= t
9390 && ((((XINT (key
) & 0x3ffff)
9391 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9392 && UPPERCASEP (XINT (key
) & 0x3ffff))
9393 || (XINT (key
) & shift_modifier
)))
9395 Lisp_Object new_key
;
9397 original_uppercase
= key
;
9398 original_uppercase_position
= t
- 1;
9400 if (XINT (key
) & shift_modifier
)
9401 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9403 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9404 | (XINT (key
) & ~0x3ffff)));
9406 /* We have to do this unconditionally, regardless of whether
9407 the lower-case char is defined in the keymaps, because they
9408 might get translated through function-key-map. */
9409 keybuf
[t
- 1] = new_key
;
9410 mock_input
= max (t
, mock_input
);
9412 goto replay_sequence
;
9414 /* If KEY is not defined in any of the keymaps,
9415 and cannot be part of a function key or translation,
9416 and is a shifted function key,
9417 use the corresponding unshifted function key instead. */
9418 if (first_binding
>= nmaps
9419 && fkey
.start
>= t
&& keytran
.start
>= t
9422 Lisp_Object breakdown
;
9425 breakdown
= parse_modifiers (key
);
9426 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9427 if (modifiers
& shift_modifier
)
9429 Lisp_Object new_key
;
9431 original_uppercase
= key
;
9432 original_uppercase_position
= t
- 1;
9434 modifiers
&= ~shift_modifier
;
9435 new_key
= apply_modifiers (modifiers
,
9438 keybuf
[t
- 1] = new_key
;
9439 mock_input
= max (t
, mock_input
);
9440 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9441 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9443 goto replay_sequence
;
9449 read_key_sequence_cmd
= (first_binding
< nmaps
9450 ? defs
[first_binding
]
9453 unread_switch_frame
= delayed_switch_frame
;
9454 unbind_to (count
, Qnil
);
9456 /* Don't downcase the last character if the caller says don't.
9457 Don't downcase it if the result is undefined, either. */
9458 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9459 && t
- 1 == original_uppercase_position
)
9460 keybuf
[t
- 1] = original_uppercase
;
9462 /* Occasionally we fabricate events, perhaps by expanding something
9463 according to function-key-map, or by adding a prefix symbol to a
9464 mouse click in the scroll bar or modeline. In this cases, return
9465 the entire generated key sequence, even if we hit an unbound
9466 prefix or a definition before the end. This means that you will
9467 be able to push back the event properly, and also means that
9468 read-key-sequence will always return a logical unit.
9471 for (; t
< mock_input
; t
++)
9473 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9474 && NILP (Fzerop (Vecho_keystrokes
)))
9475 echo_char (keybuf
[t
]);
9476 add_command_key (keybuf
[t
]);
9485 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9486 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9487 The sequence is sufficient to specify a non-prefix command in the
9488 current local and global maps.
9490 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9491 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9492 as a continuation of the previous key.
9494 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9495 convert the last event to lower case. (Normally any upper case event
9496 is converted to lower case if the original event is undefined and the lower
9497 case equivalent is defined.) A non-nil value is appropriate for reading
9498 a key sequence to be defined.
9500 A C-g typed while in this function is treated like any other character,
9501 and `quit-flag' is not set.
9503 If the key sequence starts with a mouse click, then the sequence is read
9504 using the keymaps of the buffer of the window clicked in, not the buffer
9505 of the selected window as normal.
9507 `read-key-sequence' drops unbound button-down events, since you normally
9508 only care about the click or drag events which follow them. If a drag
9509 or multi-click event is unbound, but the corresponding click event would
9510 be bound, `read-key-sequence' turns the event into a click event at the
9511 drag's starting position. This means that you don't have to distinguish
9512 between click and drag, double, or triple events unless you want to.
9514 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9515 lines separating windows, and scroll bars with imaginary keys
9516 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9518 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9519 function will process a switch-frame event if the user switches frames
9520 before typing anything. If the user switches frames in the middle of a
9521 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9522 is nil, then the event will be put off until after the current key sequence.
9524 `read-key-sequence' checks `function-key-map' for function key
9525 sequences, where they wouldn't conflict with ordinary bindings. See
9526 `function-key-map' for more details.
9528 The optional fifth argument COMMAND-LOOP, if non-nil, means
9529 that this key sequence is being read by something that will
9530 read commands one after another. It should be nil if the caller
9531 will read just one key sequence. */)
9532 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9534 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9535 Lisp_Object can_return_switch_frame
, command_loop
;
9537 Lisp_Object keybuf
[30];
9539 struct gcpro gcpro1
;
9540 int count
= SPECPDL_INDEX ();
9543 CHECK_STRING (prompt
);
9546 specbind (Qinput_method_exit_on_first_char
,
9547 (NILP (command_loop
) ? Qt
: Qnil
));
9548 specbind (Qinput_method_use_echo_area
,
9549 (NILP (command_loop
) ? Qt
: Qnil
));
9551 bzero (keybuf
, sizeof keybuf
);
9553 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9555 if (NILP (continue_echo
))
9557 this_command_key_count
= 0;
9558 this_command_key_count_reset
= 0;
9559 this_single_command_key_start
= 0;
9562 #ifdef HAVE_X_WINDOWS
9563 if (display_hourglass_p
)
9564 cancel_hourglass ();
9567 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9568 prompt
, ! NILP (dont_downcase_last
),
9569 ! NILP (can_return_switch_frame
), 0);
9571 #if 0 /* The following is fine for code reading a key sequence and
9572 then proceeding with a lenghty computation, but it's not good
9573 for code reading keys in a loop, like an input method. */
9574 #ifdef HAVE_X_WINDOWS
9575 if (display_hourglass_p
)
9586 return unbind_to (count
, make_event_array (i
, keybuf
));
9589 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9590 Sread_key_sequence_vector
, 1, 5, 0,
9591 doc
: /* Like `read-key-sequence' but always return a vector. */)
9592 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9594 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9595 Lisp_Object can_return_switch_frame
, command_loop
;
9597 Lisp_Object keybuf
[30];
9599 struct gcpro gcpro1
;
9600 int count
= SPECPDL_INDEX ();
9603 CHECK_STRING (prompt
);
9606 specbind (Qinput_method_exit_on_first_char
,
9607 (NILP (command_loop
) ? Qt
: Qnil
));
9608 specbind (Qinput_method_use_echo_area
,
9609 (NILP (command_loop
) ? Qt
: Qnil
));
9611 bzero (keybuf
, sizeof keybuf
);
9613 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9615 if (NILP (continue_echo
))
9617 this_command_key_count
= 0;
9618 this_command_key_count_reset
= 0;
9619 this_single_command_key_start
= 0;
9622 #ifdef HAVE_X_WINDOWS
9623 if (display_hourglass_p
)
9624 cancel_hourglass ();
9627 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9628 prompt
, ! NILP (dont_downcase_last
),
9629 ! NILP (can_return_switch_frame
), 0);
9631 #ifdef HAVE_X_WINDOWS
9632 if (display_hourglass_p
)
9642 return unbind_to (count
, Fvector (i
, keybuf
));
9645 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9646 doc
: /* Execute CMD as an editor command.
9647 CMD must be a symbol that satisfies the `commandp' predicate.
9648 Optional second arg RECORD-FLAG non-nil
9649 means unconditionally put this command in `command-history'.
9650 Otherwise, that is done only if an arg is read using the minibuffer.
9651 The argument KEYS specifies the value to use instead of (this-command-keys)
9652 when reading the arguments; if it is nil, (this-command-keys) is used.
9653 The argument SPECIAL, if non-nil, means that this command is executing
9654 a special event, so ignore the prefix argument and don't clear it. */)
9655 (cmd
, record_flag
, keys
, special
)
9656 Lisp_Object cmd
, record_flag
, keys
, special
;
9658 register Lisp_Object final
;
9659 register Lisp_Object tem
;
9660 Lisp_Object prefixarg
;
9661 struct backtrace backtrace
;
9662 extern int debug_on_next_call
;
9664 debug_on_next_call
= 0;
9668 prefixarg
= current_kboard
->Vprefix_arg
;
9669 Vcurrent_prefix_arg
= prefixarg
;
9670 current_kboard
->Vprefix_arg
= Qnil
;
9677 tem
= Fget (cmd
, Qdisabled
);
9678 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9680 tem
= Fsymbol_value (Qdisabled_command_function
);
9682 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9688 final
= Findirect_function (cmd
);
9690 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9692 struct gcpro gcpro1
, gcpro2
;
9694 GCPRO2 (cmd
, prefixarg
);
9695 do_autoload (final
, cmd
);
9702 if (STRINGP (final
) || VECTORP (final
))
9704 /* If requested, place the macro in the command history. For
9705 other sorts of commands, call-interactively takes care of
9707 if (!NILP (record_flag
))
9710 = Fcons (Fcons (Qexecute_kbd_macro
,
9711 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9714 /* Don't keep command history around forever. */
9715 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9717 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9719 XSETCDR (tem
, Qnil
);
9723 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9726 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9728 backtrace
.next
= backtrace_list
;
9729 backtrace_list
= &backtrace
;
9730 backtrace
.function
= &Qcall_interactively
;
9731 backtrace
.args
= &cmd
;
9732 backtrace
.nargs
= 1;
9733 backtrace
.evalargs
= 0;
9734 backtrace
.debug_on_exit
= 0;
9736 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9738 backtrace_list
= backtrace
.next
;
9746 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9748 doc
: /* Read function name, then read its arguments and call it. */)
9750 Lisp_Object prefixarg
;
9752 Lisp_Object function
;
9754 int saved_last_point_position
;
9755 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9756 Lisp_Object bindings
, value
;
9757 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9758 #ifdef HAVE_X_WINDOWS
9759 /* The call to Fcompleting_read wil start and cancel the hourglass,
9760 but if the hourglass was already scheduled, this means that no
9761 hourglass will be shown for the actual M-x command itself.
9762 So we restart it if it is already scheduled. Note that checking
9763 hourglass_shown_p is not enough, normally the hourglass is not shown,
9764 just scheduled to be shown. */
9765 int hstarted
= hourglass_started ();
9768 saved_keys
= Fvector (this_command_key_count
,
9769 XVECTOR (this_command_keys
)->contents
);
9770 saved_last_point_position_buffer
= last_point_position_buffer
;
9771 saved_last_point_position
= last_point_position
;
9773 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9775 if (EQ (prefixarg
, Qminus
))
9777 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9778 strcpy (buf
, "C-u ");
9779 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9780 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9781 else if (INTEGERP (prefixarg
))
9782 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9784 /* This isn't strictly correct if execute-extended-command
9785 is bound to anything else. Perhaps it should use
9786 this_command_keys? */
9787 strcat (buf
, "M-x ");
9789 /* Prompt with buf, and then read a string, completing from and
9790 restricting to the set of all defined commands. Don't provide
9791 any initial input. Save the command read on the extended-command
9793 function
= Fcompleting_read (build_string (buf
),
9794 Vobarray
, Qcommandp
,
9795 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9798 #ifdef HAVE_X_WINDOWS
9799 if (hstarted
) start_hourglass ();
9802 if (STRINGP (function
) && SCHARS (function
) == 0)
9803 error ("No command name given");
9805 /* Set this_command_keys to the concatenation of saved_keys and
9806 function, followed by a RET. */
9811 this_command_key_count
= 0;
9812 this_command_key_count_reset
= 0;
9813 this_single_command_key_start
= 0;
9815 keys
= XVECTOR (saved_keys
)->contents
;
9816 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9817 add_command_key (keys
[i
]);
9819 for (i
= 0; i
< SCHARS (function
); i
++)
9820 add_command_key (Faref (function
, make_number (i
)));
9822 add_command_key (make_number ('\015'));
9825 last_point_position
= saved_last_point_position
;
9826 last_point_position_buffer
= saved_last_point_position_buffer
;
9830 function
= Fintern (function
, Qnil
);
9831 current_kboard
->Vprefix_arg
= prefixarg
;
9832 Vthis_command
= function
;
9833 real_this_command
= function
;
9835 /* If enabled, show which key runs this command. */
9836 if (!NILP (Vsuggest_key_bindings
)
9837 && NILP (Vexecuting_kbd_macro
)
9838 && SYMBOLP (function
))
9839 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9845 GCPRO2 (bindings
, value
);
9846 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9848 /* If the command has a key binding, print it now. */
9849 if (!NILP (bindings
)
9850 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9853 /* But first wait, and skip the message if there is input. */
9855 if (!NILP (echo_area_buffer
[0]))
9856 /* This command displayed something in the echo area;
9857 so wait a few seconds, then display our suggestion message. */
9858 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9859 ? XINT (Vsuggest_key_bindings
) : 2);
9861 /* This command left the echo area empty,
9862 so display our message immediately. */
9865 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9866 && ! CONSP (Vunread_command_events
))
9868 Lisp_Object binding
;
9870 int message_p
= push_message ();
9871 int count
= SPECPDL_INDEX ();
9873 record_unwind_protect (pop_message_unwind
, Qnil
);
9874 binding
= Fkey_description (bindings
, Qnil
);
9877 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9880 sprintf (newmessage
, "You can run the command `%s' with %s",
9881 SDATA (SYMBOL_NAME (function
)),
9883 message2_nolog (newmessage
,
9884 strlen (newmessage
),
9885 STRING_MULTIBYTE (binding
));
9886 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9887 ? Vsuggest_key_bindings
: make_number (2)),
9892 unbind_to (count
, Qnil
);
9896 RETURN_UNGCPRO (value
);
9900 /* Return nonzero if input events are pending. */
9903 detect_input_pending ()
9906 get_input_pending (&input_pending
, 0);
9908 return input_pending
;
9911 /* Return nonzero if input events other than mouse movements are
9915 detect_input_pending_ignore_squeezables ()
9918 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9920 return input_pending
;
9923 /* Return nonzero if input events are pending, and run any pending timers. */
9926 detect_input_pending_run_timers (do_display
)
9929 int old_timers_run
= timers_run
;
9932 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9934 if (old_timers_run
!= timers_run
&& do_display
)
9936 redisplay_preserve_echo_area (8);
9937 /* The following fixes a bug when using lazy-lock with
9938 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9939 from an idle timer function. The symptom of the bug is that
9940 the cursor sometimes doesn't become visible until the next X
9941 event is processed. --gerd. */
9943 rif
->flush_display (NULL
);
9946 return input_pending
;
9949 /* This is called in some cases before a possible quit.
9950 It cases the next call to detect_input_pending to recompute input_pending.
9951 So calling this function unnecessarily can't do any harm. */
9954 clear_input_pending ()
9959 /* Return nonzero if there are pending requeued events.
9960 This isn't used yet. The hope is to make wait_reading_process_output
9961 call it, and return if it runs Lisp code that unreads something.
9962 The problem is, kbd_buffer_get_event needs to be fixed to know what
9963 to do in that case. It isn't trivial. */
9966 requeued_events_pending_p ()
9968 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9972 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9973 doc
: /* Return t if command input is currently available with no wait.
9974 Actually, the value is nil only if we can be sure that no input is available;
9975 if there is a doubt, the value is t. */)
9978 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9981 get_input_pending (&input_pending
,
9982 READABLE_EVENTS_DO_TIMERS_NOW
9983 | READABLE_EVENTS_FILTER_EVENTS
);
9984 return input_pending
> 0 ? Qt
: Qnil
;
9987 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
9988 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
9991 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
9994 if (total_keys
< NUM_RECENT_KEYS
)
9995 return Fvector (total_keys
, keys
);
9998 val
= Fvector (NUM_RECENT_KEYS
, keys
);
9999 bcopy (keys
+ recent_keys_index
,
10000 XVECTOR (val
)->contents
,
10001 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10003 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10004 recent_keys_index
* sizeof (Lisp_Object
));
10009 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10010 doc
: /* Return the key sequence that invoked this command.
10011 However, if the command has called `read-key-sequence', it returns
10012 the last key sequence that has been read.
10013 The value is a string or a vector. */)
10016 return make_event_array (this_command_key_count
,
10017 XVECTOR (this_command_keys
)->contents
);
10020 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10021 doc
: /* Return the key sequence that invoked this command, as a vector.
10022 However, if the command has called `read-key-sequence', it returns
10023 the last key sequence that has been read. */)
10026 return Fvector (this_command_key_count
,
10027 XVECTOR (this_command_keys
)->contents
);
10030 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10031 Sthis_single_command_keys
, 0, 0, 0,
10032 doc
: /* Return the key sequence that invoked this command.
10033 More generally, it returns the last key sequence read, either by
10034 the command loop or by `read-key-sequence'.
10035 Unlike `this-command-keys', this function's value
10036 does not include prefix arguments.
10037 The value is always a vector. */)
10040 return Fvector (this_command_key_count
10041 - this_single_command_key_start
,
10042 (XVECTOR (this_command_keys
)->contents
10043 + this_single_command_key_start
));
10046 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10047 Sthis_single_command_raw_keys
, 0, 0, 0,
10048 doc
: /* Return the raw events that were read for this command.
10049 More generally, it returns the last key sequence read, either by
10050 the command loop or by `read-key-sequence'.
10051 Unlike `this-single-command-keys', this function's value
10052 shows the events before all translations (except for input methods).
10053 The value is always a vector. */)
10056 return Fvector (raw_keybuf_count
,
10057 (XVECTOR (raw_keybuf
)->contents
));
10060 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10061 Sreset_this_command_lengths
, 0, 0, 0,
10062 doc
: /* Make the unread events replace the last command and echo.
10063 Used in `universal-argument-other-key'.
10065 `universal-argument-other-key' rereads the event just typed.
10066 It then gets translated through `function-key-map'.
10067 The translated event has to replace the real events,
10068 both in the value of (this-command-keys) and in echoing.
10069 To achieve this, `universal-argument-other-key' calls
10070 `reset-this-command-lengths', which discards the record of reading
10071 these events the first time. */)
10074 this_command_key_count
= before_command_key_count
;
10075 if (this_command_key_count
< this_single_command_key_start
)
10076 this_single_command_key_start
= this_command_key_count
;
10078 echo_truncate (before_command_echo_length
);
10080 /* Cause whatever we put into unread-command-events
10081 to echo as if it were being freshly read from the keyboard. */
10082 this_command_key_count_reset
= 1;
10087 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10088 Sclear_this_command_keys
, 0, 1, 0,
10089 doc
: /* Clear out the vector that `this-command-keys' returns.
10090 Also clear the record of the last 100 events, unless optional arg
10091 KEEP-RECORD is non-nil. */)
10093 Lisp_Object keep_record
;
10097 this_command_key_count
= 0;
10098 this_command_key_count_reset
= 0;
10100 if (NILP (keep_record
))
10102 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10103 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10105 recent_keys_index
= 0;
10110 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10111 doc
: /* Return the current depth in recursive edits. */)
10115 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10119 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10120 "FOpen dribble file: ",
10121 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10122 If FILE is nil, close any open dribble file. */)
10133 file
= Fexpand_file_name (file
, Qnil
);
10134 dribble
= fopen (SDATA (file
), "w");
10136 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10141 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10142 doc
: /* Discard the contents of the terminal input buffer.
10143 Also end any kbd macro being defined. */)
10146 if (!NILP (current_kboard
->defining_kbd_macro
))
10148 /* Discard the last command from the macro. */
10149 Fcancel_kbd_macro_events ();
10153 update_mode_lines
++;
10155 Vunread_command_events
= Qnil
;
10156 unread_command_char
= -1;
10158 discard_tty_input ();
10160 kbd_fetch_ptr
= kbd_store_ptr
;
10166 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10167 doc
: /* Stop Emacs and return to superior process. You can resume later.
10168 If `cannot-suspend' is non-nil, or if the system doesn't support job
10169 control, run a subshell instead.
10171 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10172 to be read as terminal input by Emacs's parent, after suspension.
10174 Before suspending, run the normal hook `suspend-hook'.
10175 After resumption run the normal hook `suspend-resume-hook'.
10177 Some operating systems cannot stop the Emacs process and resume it later.
10178 On such systems, Emacs starts a subshell instead of suspending. */)
10180 Lisp_Object stuffstring
;
10182 int count
= SPECPDL_INDEX ();
10183 int old_height
, old_width
;
10185 struct gcpro gcpro1
;
10187 if (!NILP (stuffstring
))
10188 CHECK_STRING (stuffstring
);
10190 /* Run the functions in suspend-hook. */
10191 if (!NILP (Vrun_hooks
))
10192 call1 (Vrun_hooks
, intern ("suspend-hook"));
10194 GCPRO1 (stuffstring
);
10195 get_frame_size (&old_width
, &old_height
);
10196 reset_sys_modes ();
10197 /* sys_suspend can get an error if it tries to fork a subshell
10198 and the system resources aren't available for that. */
10199 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_sys_modes
,
10201 stuff_buffered_input (stuffstring
);
10202 if (cannot_suspend
)
10206 unbind_to (count
, Qnil
);
10208 /* Check if terminal/window size has changed.
10209 Note that this is not useful when we are running directly
10210 with a window system; but suspend should be disabled in that case. */
10211 get_frame_size (&width
, &height
);
10212 if (width
!= old_width
|| height
!= old_height
)
10213 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10215 /* Run suspend-resume-hook. */
10216 if (!NILP (Vrun_hooks
))
10217 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10223 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10224 Then in any case stuff anything Emacs has read ahead and not used. */
10227 stuff_buffered_input (stuffstring
)
10228 Lisp_Object stuffstring
;
10230 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10231 register unsigned char *p
;
10233 if (STRINGP (stuffstring
))
10235 register int count
;
10237 p
= SDATA (stuffstring
);
10238 count
= SBYTES (stuffstring
);
10239 while (count
-- > 0)
10244 /* Anything we have read ahead, put back for the shell to read. */
10245 /* ?? What should this do when we have multiple keyboards??
10246 Should we ignore anything that was typed in at the "wrong" kboard?
10248 rms: we should stuff everything back into the kboard
10250 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10253 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10254 kbd_fetch_ptr
= kbd_buffer
;
10255 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10256 stuff_char (kbd_fetch_ptr
->code
);
10258 clear_event (kbd_fetch_ptr
);
10262 #endif /* SIGTSTP */
10266 set_waiting_for_input (time_to_clear
)
10267 EMACS_TIME
*time_to_clear
;
10269 input_available_clear_time
= time_to_clear
;
10271 /* Tell interrupt_signal to throw back to read_char, */
10272 waiting_for_input
= 1;
10274 /* If interrupt_signal was called before and buffered a C-g,
10275 make it run again now, to avoid timing error. */
10276 if (!NILP (Vquit_flag
))
10277 quit_throw_to_read_char ();
10281 clear_waiting_for_input ()
10283 /* Tell interrupt_signal not to throw back to read_char, */
10284 waiting_for_input
= 0;
10285 input_available_clear_time
= 0;
10288 /* This routine is called at interrupt level in response to C-g.
10290 If interrupt_input, this is the handler for SIGINT. Otherwise, it
10291 is called from kbd_buffer_store_event, in handling SIGIO or
10294 If `waiting_for_input' is non zero, then unless `echoing' is
10295 nonzero, immediately throw back to read_char.
10297 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10298 eval to throw, when it gets a chance. If quit-flag is already
10299 non-nil, it stops the job right away. */
10302 interrupt_signal (signalnum
) /* If we don't have an argument, */
10303 int signalnum
; /* some compilers complain in signal calls. */
10306 /* Must preserve main program's value of errno. */
10307 int old_errno
= errno
;
10308 struct frame
*sf
= SELECTED_FRAME ();
10310 #if defined (USG) && !defined (POSIX_SIGNALS)
10311 if (!read_socket_hook
&& NILP (Vwindow_system
))
10313 /* USG systems forget handlers when they are used;
10314 must reestablish each time */
10315 signal (SIGINT
, interrupt_signal
);
10316 signal (SIGQUIT
, interrupt_signal
);
10320 SIGNAL_THREAD_CHECK (signalnum
);
10323 if (!NILP (Vquit_flag
)
10324 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10326 /* If SIGINT isn't blocked, don't let us be interrupted by
10327 another SIGINT, it might be harmful due to non-reentrancy
10328 in I/O functions. */
10329 sigblock (sigmask (SIGINT
));
10332 reset_sys_modes ();
10334 #ifdef SIGTSTP /* Support possible in later USG versions */
10336 * On systems which can suspend the current process and return to the original
10337 * shell, this command causes the user to end up back at the shell.
10338 * The "Auto-save" and "Abort" questions are not asked until
10339 * the user elects to return to emacs, at which point he can save the current
10340 * job and either dump core or continue.
10345 if (sys_suspend () == -1)
10347 printf ("Not running as a subprocess;\n");
10348 printf ("you can continue or abort.\n");
10350 #else /* not VMS */
10351 /* Perhaps should really fork an inferior shell?
10352 But that would not provide any way to get back
10353 to the original shell, ever. */
10354 printf ("No support for stopping a process on this operating system;\n");
10355 printf ("you can continue or abort.\n");
10356 #endif /* not VMS */
10357 #endif /* not SIGTSTP */
10359 /* We must remain inside the screen area when the internal terminal
10360 is used. Note that [Enter] is not echoed by dos. */
10363 /* It doesn't work to autosave while GC is in progress;
10364 the code used for auto-saving doesn't cope with the mark bit. */
10365 if (!gc_in_progress
)
10367 printf ("Auto-save? (y or n) ");
10369 if (((c
= getchar ()) & ~040) == 'Y')
10371 Fdo_auto_save (Qt
, Qnil
);
10373 printf ("\r\nAuto-save done");
10374 #else /* not MSDOS */
10375 printf ("Auto-save done\n");
10376 #endif /* not MSDOS */
10378 while (c
!= '\n') c
= getchar ();
10382 /* During GC, it must be safe to reenable quitting again. */
10383 Vinhibit_quit
= Qnil
;
10386 #endif /* not MSDOS */
10387 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10388 printf ("but will instead do a real quit after garbage collection ends\r\n");
10393 printf ("\r\nAbort? (y or n) ");
10394 #else /* not MSDOS */
10396 printf ("Abort (and enter debugger)? (y or n) ");
10397 #else /* not VMS */
10398 printf ("Abort (and dump core)? (y or n) ");
10399 #endif /* not VMS */
10400 #endif /* not MSDOS */
10402 if (((c
= getchar ()) & ~040) == 'Y')
10404 while (c
!= '\n') c
= getchar ();
10406 printf ("\r\nContinuing...\r\n");
10407 #else /* not MSDOS */
10408 printf ("Continuing...\n");
10409 #endif /* not MSDOS */
10416 /* If executing a function that wants to be interrupted out of
10417 and the user has not deferred quitting by binding `inhibit-quit'
10418 then quit right away. */
10419 if (immediate_quit
&& NILP (Vinhibit_quit
))
10421 struct gl_state_s saved
;
10422 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10424 immediate_quit
= 0;
10427 GCPRO4 (saved
.object
, saved
.global_code
,
10428 saved
.current_syntax_table
, saved
.old_prop
);
10429 Fsignal (Qquit
, Qnil
);
10434 /* Else request quit when it's safe */
10438 if (waiting_for_input
&& !echoing
)
10439 quit_throw_to_read_char ();
10444 /* Handle a C-g by making read_char return C-g. */
10447 quit_throw_to_read_char ()
10450 /* Prevent another signal from doing this before we finish. */
10451 clear_waiting_for_input ();
10454 Vunread_command_events
= Qnil
;
10455 unread_command_char
= -1;
10457 #if 0 /* Currently, sit_for is called from read_char without turning
10458 off polling. And that can call set_waiting_for_input.
10459 It seems to be harmless. */
10460 #ifdef POLL_FOR_INPUT
10461 /* May be > 1 if in recursive minibuffer. */
10462 if (poll_suppress_count
== 0)
10466 if (FRAMEP (internal_last_event_frame
)
10467 && !EQ (internal_last_event_frame
, selected_frame
))
10468 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10471 _longjmp (getcjmp
, 1);
10474 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10475 doc
: /* Set mode of reading keyboard input.
10476 First arg INTERRUPT non-nil means use input interrupts;
10477 nil means use CBREAK mode.
10478 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10479 (no effect except in CBREAK mode).
10480 Third arg META t means accept 8-bit input (for a Meta key).
10481 META nil means ignore the top bit, on the assumption it is parity.
10482 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10483 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10484 See also `current-input-mode'. */)
10485 (interrupt
, flow
, meta
, quit
)
10486 Lisp_Object interrupt
, flow
, meta
, quit
;
10489 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10490 error ("set-input-mode: QUIT must be an ASCII character");
10492 #ifdef POLL_FOR_INPUT
10497 /* this causes startup screen to be restored and messes with the mouse */
10498 reset_sys_modes ();
10502 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10503 if (read_socket_hook
)
10505 /* When using X, don't give the user a real choice,
10506 because we haven't implemented the mechanisms to support it. */
10507 #ifdef NO_SOCK_SIGIO
10508 interrupt_input
= 0;
10509 #else /* not NO_SOCK_SIGIO */
10510 interrupt_input
= 1;
10511 #endif /* NO_SOCK_SIGIO */
10514 interrupt_input
= !NILP (interrupt
);
10515 #else /* not SIGIO */
10516 interrupt_input
= 0;
10517 #endif /* not SIGIO */
10519 /* Our VMS input only works by interrupts, as of now. */
10521 interrupt_input
= 1;
10524 flow_control
= !NILP (flow
);
10527 else if (EQ (meta
, Qt
))
10532 /* Don't let this value be out of range. */
10533 quit_char
= XINT (quit
) & (meta_key
? 0377 : 0177);
10539 #ifdef POLL_FOR_INPUT
10540 poll_suppress_count
= 1;
10546 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10547 doc
: /* Return information about the way Emacs currently reads keyboard input.
10548 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10549 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10550 nil, Emacs is using CBREAK mode.
10551 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10552 terminal; this does not apply if Emacs uses interrupt-driven input.
10553 META is t if accepting 8-bit input with 8th bit as Meta flag.
10554 META nil means ignoring the top bit, on the assumption it is parity.
10555 META is neither t nor nil if accepting 8-bit input and using
10556 all 8 bits as the character code.
10557 QUIT is the character Emacs currently uses to quit.
10558 The elements of this list correspond to the arguments of
10559 `set-input-mode'. */)
10562 Lisp_Object val
[4];
10564 val
[0] = interrupt_input
? Qt
: Qnil
;
10565 val
[1] = flow_control
? Qt
: Qnil
;
10566 val
[2] = meta_key
== 2 ? make_number (0) : meta_key
== 1 ? Qt
: Qnil
;
10567 XSETFASTINT (val
[3], quit_char
);
10569 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10572 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10573 doc
: /* Return position information for pixel coordinates X and Y.
10574 By default, X and Y are relative to text area of the selected window.
10575 Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
10576 If optional fourth arg WHOLE is non-nil, X is relative to the left
10577 edge of the window.
10579 The return value is similar to a mouse click position:
10580 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10581 IMAGE (DX . DY) (WIDTH . HEIGHT))
10582 The `posn-' functions access elements of such lists. */)
10583 (x
, y
, frame_or_window
, whole
)
10584 Lisp_Object x
, y
, frame_or_window
, whole
;
10589 if (NILP (frame_or_window
))
10590 frame_or_window
= selected_window
;
10592 if (WINDOWP (frame_or_window
))
10596 CHECK_LIVE_WINDOW (frame_or_window
);
10598 w
= XWINDOW (frame_or_window
);
10599 XSETINT (x
, (XINT (x
)
10600 + WINDOW_LEFT_EDGE_X (w
)
10602 ? window_box_left_offset (w
, TEXT_AREA
)
10604 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10605 frame_or_window
= w
->frame
;
10608 CHECK_LIVE_FRAME (frame_or_window
);
10610 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10613 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10614 doc
: /* Return position information for buffer POS in WINDOW.
10615 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10617 Return nil if position is not visible in window. Otherwise,
10618 the return value is similar to that returned by `event-start' for
10619 a mouse click at the upper left corner of the glyph corresponding
10620 to the given buffer position:
10621 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10622 IMAGE (DX . DY) (WIDTH . HEIGHT))
10623 The `posn-' functions access elements of such lists. */)
10625 Lisp_Object pos
, window
;
10630 window
= selected_window
;
10632 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10635 Lisp_Object x
= XCAR (tem
);
10636 Lisp_Object y
= XCAR (XCDR (tem
));
10638 /* Point invisible due to hscrolling? */
10641 tem
= Fposn_at_x_y (x
, y
, window
, Qnil
);
10649 * Set up a new kboard object with reasonable initial values.
10655 kb
->Voverriding_terminal_local_map
= Qnil
;
10656 kb
->Vlast_command
= Qnil
;
10657 kb
->Vreal_last_command
= Qnil
;
10658 kb
->Vprefix_arg
= Qnil
;
10659 kb
->Vlast_prefix_arg
= Qnil
;
10660 kb
->kbd_queue
= Qnil
;
10661 kb
->kbd_queue_has_data
= 0;
10662 kb
->immediate_echo
= 0;
10663 kb
->echo_string
= Qnil
;
10664 kb
->echo_after_prompt
= -1;
10665 kb
->kbd_macro_buffer
= 0;
10666 kb
->kbd_macro_bufsize
= 0;
10667 kb
->defining_kbd_macro
= Qnil
;
10668 kb
->Vlast_kbd_macro
= Qnil
;
10669 kb
->reference_count
= 0;
10670 kb
->Vsystem_key_alist
= Qnil
;
10671 kb
->system_key_syms
= Qnil
;
10672 kb
->Vdefault_minibuffer_frame
= Qnil
;
10676 * Destroy the contents of a kboard object, but not the object itself.
10677 * We use this just before deleting it, or if we're going to initialize
10678 * it a second time.
10684 if (kb
->kbd_macro_buffer
)
10685 xfree (kb
->kbd_macro_buffer
);
10688 #ifdef MULTI_KBOARD
10690 /* Free KB and memory referenced from it. */
10698 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10701 *kbp
= kb
->next_kboard
;
10703 /* Prevent a dangling reference to KB. */
10704 if (kb
== current_kboard
10705 && FRAMEP (selected_frame
)
10706 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10708 current_kboard
= XFRAME (selected_frame
)->kboard
;
10709 if (current_kboard
== kb
)
10717 #endif /* MULTI_KBOARD */
10722 /* This is correct before outermost invocation of the editor loop */
10723 command_loop_level
= -1;
10724 immediate_quit
= 0;
10725 quit_char
= Ctl ('g');
10726 Vunread_command_events
= Qnil
;
10727 unread_command_char
= -1;
10728 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10730 recent_keys_index
= 0;
10731 kbd_fetch_ptr
= kbd_buffer
;
10732 kbd_store_ptr
= kbd_buffer
;
10734 do_mouse_tracking
= Qnil
;
10738 /* This means that command_loop_1 won't try to select anything the first
10740 internal_last_event_frame
= Qnil
;
10741 Vlast_event_frame
= internal_last_event_frame
;
10743 #ifdef MULTI_KBOARD
10744 current_kboard
= initial_kboard
;
10746 wipe_kboard (current_kboard
);
10747 init_kboard (current_kboard
);
10749 if (!noninteractive
&& !read_socket_hook
&& NILP (Vwindow_system
))
10751 signal (SIGINT
, interrupt_signal
);
10752 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10753 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10754 SIGQUIT and we can't tell which one it will give us. */
10755 signal (SIGQUIT
, interrupt_signal
);
10756 #endif /* HAVE_TERMIO */
10758 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10760 if (!noninteractive
)
10761 signal (SIGIO
, input_available_signal
);
10764 /* Use interrupt input by default, if it works and noninterrupt input
10765 has deficiencies. */
10767 #ifdef INTERRUPT_INPUT
10768 interrupt_input
= 1;
10770 interrupt_input
= 0;
10773 /* Our VMS input only works by interrupts, as of now. */
10775 interrupt_input
= 1;
10781 if (keyboard_init_hook
)
10782 (*keyboard_init_hook
) ();
10784 #ifdef POLL_FOR_INPUT
10785 poll_suppress_count
= 1;
10790 /* This type's only use is in syms_of_keyboard, to initialize the
10791 event header symbols and put properties on them. */
10792 struct event_head
{
10798 struct event_head head_table
[] = {
10799 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10800 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10801 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10802 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10803 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10804 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10805 /* `select-window' should be handled just like `switch-frame'
10806 in read_key_sequence. */
10807 {&Qselect_window
, "select-window", &Qswitch_frame
}
10811 syms_of_keyboard ()
10813 Vpre_help_message
= Qnil
;
10814 staticpro (&Vpre_help_message
);
10816 Vlispy_mouse_stem
= build_string ("mouse");
10817 staticpro (&Vlispy_mouse_stem
);
10820 QCimage
= intern (":image");
10821 staticpro (&QCimage
);
10823 staticpro (&Qhelp_echo
);
10824 Qhelp_echo
= intern ("help-echo");
10826 staticpro (&item_properties
);
10827 item_properties
= Qnil
;
10829 staticpro (&tool_bar_item_properties
);
10830 tool_bar_item_properties
= Qnil
;
10831 staticpro (&tool_bar_items_vector
);
10832 tool_bar_items_vector
= Qnil
;
10834 staticpro (&real_this_command
);
10835 real_this_command
= Qnil
;
10837 Qtimer_event_handler
= intern ("timer-event-handler");
10838 staticpro (&Qtimer_event_handler
);
10840 Qdisabled_command_function
= intern ("disabled-command-function");
10841 staticpro (&Qdisabled_command_function
);
10843 Qself_insert_command
= intern ("self-insert-command");
10844 staticpro (&Qself_insert_command
);
10846 Qforward_char
= intern ("forward-char");
10847 staticpro (&Qforward_char
);
10849 Qbackward_char
= intern ("backward-char");
10850 staticpro (&Qbackward_char
);
10852 Qdisabled
= intern ("disabled");
10853 staticpro (&Qdisabled
);
10855 Qundefined
= intern ("undefined");
10856 staticpro (&Qundefined
);
10858 Qpre_command_hook
= intern ("pre-command-hook");
10859 staticpro (&Qpre_command_hook
);
10861 Qpost_command_hook
= intern ("post-command-hook");
10862 staticpro (&Qpost_command_hook
);
10864 Qdeferred_action_function
= intern ("deferred-action-function");
10865 staticpro (&Qdeferred_action_function
);
10867 Qcommand_hook_internal
= intern ("command-hook-internal");
10868 staticpro (&Qcommand_hook_internal
);
10870 Qfunction_key
= intern ("function-key");
10871 staticpro (&Qfunction_key
);
10872 Qmouse_click
= intern ("mouse-click");
10873 staticpro (&Qmouse_click
);
10874 #if defined (WINDOWSNT) || defined (MAC_OS)
10875 Qlanguage_change
= intern ("language-change");
10876 staticpro (&Qlanguage_change
);
10878 Qdrag_n_drop
= intern ("drag-n-drop");
10879 staticpro (&Qdrag_n_drop
);
10881 Qsave_session
= intern ("save-session");
10882 staticpro (&Qsave_session
);
10884 Qusr1_signal
= intern ("usr1-signal");
10885 staticpro (&Qusr1_signal
);
10886 Qusr2_signal
= intern ("usr2-signal");
10887 staticpro (&Qusr2_signal
);
10889 Qmenu_enable
= intern ("menu-enable");
10890 staticpro (&Qmenu_enable
);
10891 Qmenu_alias
= intern ("menu-alias");
10892 staticpro (&Qmenu_alias
);
10893 QCenable
= intern (":enable");
10894 staticpro (&QCenable
);
10895 QCvisible
= intern (":visible");
10896 staticpro (&QCvisible
);
10897 QChelp
= intern (":help");
10898 staticpro (&QChelp
);
10899 QCfilter
= intern (":filter");
10900 staticpro (&QCfilter
);
10901 QCbutton
= intern (":button");
10902 staticpro (&QCbutton
);
10903 QCkeys
= intern (":keys");
10904 staticpro (&QCkeys
);
10905 QCkey_sequence
= intern (":key-sequence");
10906 staticpro (&QCkey_sequence
);
10907 QCtoggle
= intern (":toggle");
10908 staticpro (&QCtoggle
);
10909 QCradio
= intern (":radio");
10910 staticpro (&QCradio
);
10912 Qmode_line
= intern ("mode-line");
10913 staticpro (&Qmode_line
);
10914 Qvertical_line
= intern ("vertical-line");
10915 staticpro (&Qvertical_line
);
10916 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10917 staticpro (&Qvertical_scroll_bar
);
10918 Qmenu_bar
= intern ("menu-bar");
10919 staticpro (&Qmenu_bar
);
10922 Qmouse_fixup_help_message
= intern ("mouse-fixup-help-message");
10923 staticpro (&Qmouse_fixup_help_message
);
10926 Qabove_handle
= intern ("above-handle");
10927 staticpro (&Qabove_handle
);
10928 Qhandle
= intern ("handle");
10929 staticpro (&Qhandle
);
10930 Qbelow_handle
= intern ("below-handle");
10931 staticpro (&Qbelow_handle
);
10932 Qup
= intern ("up");
10934 Qdown
= intern ("down");
10935 staticpro (&Qdown
);
10936 Qtop
= intern ("top");
10938 Qbottom
= intern ("bottom");
10939 staticpro (&Qbottom
);
10940 Qend_scroll
= intern ("end-scroll");
10941 staticpro (&Qend_scroll
);
10942 Qratio
= intern ("ratio");
10943 staticpro (&Qratio
);
10945 Qevent_kind
= intern ("event-kind");
10946 staticpro (&Qevent_kind
);
10947 Qevent_symbol_elements
= intern ("event-symbol-elements");
10948 staticpro (&Qevent_symbol_elements
);
10949 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10950 staticpro (&Qevent_symbol_element_mask
);
10951 Qmodifier_cache
= intern ("modifier-cache");
10952 staticpro (&Qmodifier_cache
);
10954 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10955 staticpro (&Qrecompute_lucid_menubar
);
10956 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10957 staticpro (&Qactivate_menubar_hook
);
10959 Qpolling_period
= intern ("polling-period");
10960 staticpro (&Qpolling_period
);
10962 Qinput_method_function
= intern ("input-method-function");
10963 staticpro (&Qinput_method_function
);
10965 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
10966 staticpro (&Qinput_method_exit_on_first_char
);
10967 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
10968 staticpro (&Qinput_method_use_echo_area
);
10970 Fset (Qinput_method_exit_on_first_char
, Qnil
);
10971 Fset (Qinput_method_use_echo_area
, Qnil
);
10973 last_point_position_buffer
= Qnil
;
10976 struct event_head
*p
;
10978 for (p
= head_table
;
10979 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
10982 *p
->var
= intern (p
->name
);
10983 staticpro (p
->var
);
10984 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
10985 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
10989 button_down_location
= Fmake_vector (make_number (1), Qnil
);
10990 staticpro (&button_down_location
);
10991 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
10992 staticpro (&mouse_syms
);
10993 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
10994 staticpro (&wheel_syms
);
10998 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
11000 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
11001 for (i
= 0; i
< len
; i
++)
11002 if (modifier_names
[i
])
11003 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11004 staticpro (&modifier_symbols
);
11007 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11008 staticpro (&recent_keys
);
11010 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11011 staticpro (&this_command_keys
);
11013 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11014 staticpro (&raw_keybuf
);
11016 Qextended_command_history
= intern ("extended-command-history");
11017 Fset (Qextended_command_history
, Qnil
);
11018 staticpro (&Qextended_command_history
);
11020 accent_key_syms
= Qnil
;
11021 staticpro (&accent_key_syms
);
11023 func_key_syms
= Qnil
;
11024 staticpro (&func_key_syms
);
11026 drag_n_drop_syms
= Qnil
;
11027 staticpro (&drag_n_drop_syms
);
11029 unread_switch_frame
= Qnil
;
11030 staticpro (&unread_switch_frame
);
11032 internal_last_event_frame
= Qnil
;
11033 staticpro (&internal_last_event_frame
);
11035 read_key_sequence_cmd
= Qnil
;
11036 staticpro (&read_key_sequence_cmd
);
11038 menu_bar_one_keymap_changed_items
= Qnil
;
11039 staticpro (&menu_bar_one_keymap_changed_items
);
11041 menu_bar_items_vector
= Qnil
;
11042 staticpro (&menu_bar_items_vector
);
11044 defsubr (&Sevent_convert_list
);
11045 defsubr (&Sread_key_sequence
);
11046 defsubr (&Sread_key_sequence_vector
);
11047 defsubr (&Srecursive_edit
);
11049 defsubr (&Strack_mouse
);
11051 defsubr (&Sinput_pending_p
);
11052 defsubr (&Scommand_execute
);
11053 defsubr (&Srecent_keys
);
11054 defsubr (&Sthis_command_keys
);
11055 defsubr (&Sthis_command_keys_vector
);
11056 defsubr (&Sthis_single_command_keys
);
11057 defsubr (&Sthis_single_command_raw_keys
);
11058 defsubr (&Sreset_this_command_lengths
);
11059 defsubr (&Sclear_this_command_keys
);
11060 defsubr (&Ssuspend_emacs
);
11061 defsubr (&Sabort_recursive_edit
);
11062 defsubr (&Sexit_recursive_edit
);
11063 defsubr (&Srecursion_depth
);
11064 defsubr (&Stop_level
);
11065 defsubr (&Sdiscard_input
);
11066 defsubr (&Sopen_dribble_file
);
11067 defsubr (&Sset_input_mode
);
11068 defsubr (&Scurrent_input_mode
);
11069 defsubr (&Sexecute_extended_command
);
11070 defsubr (&Sposn_at_point
);
11071 defsubr (&Sposn_at_x_y
);
11073 DEFVAR_LISP ("last-command-char", &last_command_char
,
11074 doc
: /* Last input event that was part of a command. */);
11076 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11077 doc
: /* Last input event that was part of a command. */);
11079 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11080 doc
: /* Last input event in a command, except for mouse menu events.
11081 Mouse menus give back keys that don't look like mouse events;
11082 this variable holds the actual mouse event that led to the menu,
11083 so that you can determine whether the command was run by mouse or not. */);
11085 DEFVAR_LISP ("last-input-char", &last_input_char
,
11086 doc
: /* Last input event. */);
11088 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11089 doc
: /* Last input event. */);
11091 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11092 doc
: /* List of events to be read as the command input.
11093 These events are processed first, before actual keyboard input. */);
11094 Vunread_command_events
= Qnil
;
11096 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11097 doc
: /* If not -1, an object to be read as next command input event. */);
11099 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11100 doc
: /* List of events to be processed as input by input methods.
11101 These events are processed after `unread-command-events', but
11102 before actual keyboard input. */);
11103 Vunread_post_input_method_events
= Qnil
;
11105 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11106 doc
: /* List of events to be processed as input by input methods.
11107 These events are processed after `unread-command-events', but
11108 before actual keyboard input. */);
11109 Vunread_input_method_events
= Qnil
;
11111 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11112 doc
: /* Meta-prefix character code.
11113 Meta-foo as command input turns into this character followed by foo. */);
11114 XSETINT (meta_prefix_char
, 033);
11116 DEFVAR_KBOARD ("last-command", Vlast_command
,
11117 doc
: /* The last command executed.
11118 Normally a symbol with a function definition, but can be whatever was found
11119 in the keymap, or whatever the variable `this-command' was set to by that
11122 The value `mode-exit' is special; it means that the previous command
11123 read an event that told it to exit, and it did so and unread that event.
11124 In other words, the present command is the event that made the previous
11127 The value `kill-region' is special; it means that the previous command
11128 was a kill command. */);
11130 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11131 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11133 DEFVAR_LISP ("this-command", &Vthis_command
,
11134 doc
: /* The command now being executed.
11135 The command can set this variable; whatever is put here
11136 will be in `last-command' during the following command. */);
11137 Vthis_command
= Qnil
;
11139 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11140 doc
: /* The command bound to the current key sequence before remapping.
11141 It equals `this-command' if the original command was not remapped through
11142 any of the active keymaps. Otherwise, the value of `this-command' is the
11143 result of looking up the original command in the active keymaps. */);
11144 Vthis_original_command
= Qnil
;
11146 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11147 doc
: /* *Number of input events between auto-saves.
11148 Zero means disable autosaving due to number of characters typed. */);
11149 auto_save_interval
= 300;
11151 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11152 doc
: /* *Number of seconds idle time before auto-save.
11153 Zero or nil means disable auto-saving due to idleness.
11154 After auto-saving due to this many seconds of idle time,
11155 Emacs also does a garbage collection if that seems to be warranted. */);
11156 XSETFASTINT (Vauto_save_timeout
, 30);
11158 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11159 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11160 The value may be integer or floating point. */);
11161 Vecho_keystrokes
= make_number (1);
11163 DEFVAR_INT ("polling-period", &polling_period
,
11164 doc
: /* *Interval between polling for input during Lisp execution.
11165 The reason for polling is to make C-g work to stop a running program.
11166 Polling is needed only when using X windows and SIGIO does not work.
11167 Polling is automatically disabled in all other cases. */);
11168 polling_period
= 2;
11170 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11171 doc
: /* *Maximum time between mouse clicks to make a double-click.
11172 Measured in milliseconds. nil means disable double-click recognition;
11173 t means double-clicks have no time limit and are detected
11174 by position only. */);
11175 Vdouble_click_time
= make_number (500);
11177 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11178 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11179 On window-system frames, value is the number of pixels the mouse may have
11180 moved horizontally or vertically between two clicks to make a double-click.
11181 On non window-system frames, value is interpreted in units of 1/8 characters
11184 This variable is also the threshold for motion of the mouse
11185 to count as a drag. */);
11186 double_click_fuzz
= 3;
11188 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11189 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11190 inhibit_local_menu_bar_menus
= 0;
11192 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11193 doc
: /* Number of complete key sequences read as input so far.
11194 This includes key sequences read from keyboard macros.
11195 The number is effectively the number of interactive command invocations. */);
11196 num_input_keys
= 0;
11198 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11199 doc
: /* Number of input events read from the keyboard so far.
11200 This does not include events generated by keyboard macros. */);
11201 num_nonmacro_input_events
= 0;
11203 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11204 doc
: /* The frame in which the most recently read event occurred.
11205 If the last event came from a keyboard macro, this is set to `macro'. */);
11206 Vlast_event_frame
= Qnil
;
11208 /* This variable is set up in sysdep.c. */
11209 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11210 doc
: /* The ERASE character as set by the user with stty. */);
11212 DEFVAR_LISP ("help-char", &Vhelp_char
,
11213 doc
: /* Character to recognize as meaning Help.
11214 When it is read, do `(eval help-form)', and display result if it's a string.
11215 If the value of `help-form' is nil, this char can be read normally. */);
11216 XSETINT (Vhelp_char
, Ctl ('H'));
11218 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11219 doc
: /* List of input events to recognize as meaning Help.
11220 These work just like the value of `help-char' (see that). */);
11221 Vhelp_event_list
= Qnil
;
11223 DEFVAR_LISP ("help-form", &Vhelp_form
,
11224 doc
: /* Form to execute when character `help-char' is read.
11225 If the form returns a string, that string is displayed.
11226 If `help-form' is nil, the help char is not recognized. */);
11229 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11230 doc
: /* Command to run when `help-char' character follows a prefix key.
11231 This command is used only when there is no actual binding
11232 for that character after that prefix key. */);
11233 Vprefix_help_command
= Qnil
;
11235 DEFVAR_LISP ("top-level", &Vtop_level
,
11236 doc
: /* Form to evaluate when Emacs starts up.
11237 Useful to set before you dump a modified Emacs. */);
11240 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11241 doc
: /* Translate table for keyboard input, or nil.
11242 If non-nil, the value should be a char-table. Each character read
11243 from the keyboard is looked up in this char-table. If the value found
11244 there is non-nil, then it is used instead of the actual input character.
11246 The value can also be a string or vector, but this is considered obsolete.
11247 If it is a string or vector of length N, character codes N and up are left
11248 untranslated. In a vector, an element which is nil means "no translation".
11250 This is applied to the characters supplied to input methods, not their
11251 output. See also `translation-table-for-input'. */);
11252 Vkeyboard_translate_table
= Qnil
;
11254 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11255 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11256 \(Even if the operating system has support for stopping a process.\) */);
11257 cannot_suspend
= 0;
11259 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11260 doc
: /* Non-nil means prompt with menus when appropriate.
11261 This is done when reading from a keymap that has a prompt string,
11262 for elements that have prompt strings.
11263 The menu is displayed on the screen
11264 if X menus were enabled at configuration
11265 time and the previous event was a mouse click prefix key.
11266 Otherwise, menu prompting uses the echo area. */);
11267 menu_prompting
= 1;
11269 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11270 doc
: /* Character to see next line of menu prompt.
11271 Type this character while in a menu prompt to rotate around the lines of it. */);
11272 XSETINT (menu_prompt_more_char
, ' ');
11274 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11275 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11276 Emacs applies the modifiers of the character stored here to each keyboard
11277 character it reads. For example, after evaluating the expression
11278 (setq extra-keyboard-modifiers ?\\C-x)
11279 all input characters will have the control modifier applied to them.
11281 Note that the character ?\\C-@, equivalent to the integer zero, does
11282 not count as a control character; rather, it counts as a character
11283 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11284 cancels any modification. */);
11285 extra_keyboard_modifiers
= 0;
11287 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11288 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11289 The command loop sets this to nil before each command,
11290 and tests the value when the command returns.
11291 Buffer modification stores t in this variable. */);
11292 Vdeactivate_mark
= Qnil
;
11294 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11295 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11296 Vcommand_hook_internal
= Qnil
;
11298 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11299 doc
: /* Normal hook run before each command is executed.
11300 If an unhandled error happens in running this hook,
11301 the hook value is set to nil, since otherwise the error
11302 might happen repeatedly and make Emacs nonfunctional. */);
11303 Vpre_command_hook
= Qnil
;
11305 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11306 doc
: /* Normal hook run after each command is executed.
11307 If an unhandled error happens in running this hook,
11308 the hook value is set to nil, since otherwise the error
11309 might happen repeatedly and make Emacs nonfunctional. */);
11310 Vpost_command_hook
= Qnil
;
11313 DEFVAR_LISP ("echo-area-clear-hook", ...,
11314 doc
: /* Normal hook run when clearing the echo area. */);
11316 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11317 staticpro (&Qecho_area_clear_hook
);
11318 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11320 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11321 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11322 Vlucid_menu_bar_dirty_flag
= Qnil
;
11324 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11325 doc
: /* List of menu bar items to move to the end of the menu bar.
11326 The elements of the list are event types that may have menu bar bindings. */);
11327 Vmenu_bar_final_items
= Qnil
;
11329 DEFVAR_KBOARD ("overriding-terminal-local-map",
11330 Voverriding_terminal_local_map
,
11331 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11332 If this variable is non-nil, it is used as a keymap instead of the
11333 buffer's local map, and the minor mode keymaps and text property keymaps.
11334 It also replaces `overriding-local-map'.
11336 This variable is intended to let commands such as `universal-argument'
11337 set up a different keymap for reading the next command. */);
11339 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11340 doc
: /* Keymap that overrides all other local keymaps.
11341 If this variable is non-nil, it is used as a keymap--replacing the
11342 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11343 Voverriding_local_map
= Qnil
;
11345 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11346 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11347 Otherwise, the menu bar continues to reflect the buffer's local map
11348 and the minor mode maps regardless of `overriding-local-map'. */);
11349 Voverriding_local_map_menu_flag
= Qnil
;
11351 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11352 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11353 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11355 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11356 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11358 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11359 doc
: /* Alist of system-specific X windows key symbols.
11360 Each element should have the form (N . SYMBOL) where N is the
11361 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11362 and SYMBOL is its name. */);
11364 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11365 doc
: /* List of deferred actions to be performed at a later time.
11366 The precise format isn't relevant here; we just check whether it is nil. */);
11367 Vdeferred_action_list
= Qnil
;
11369 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11370 doc
: /* Function to call to handle deferred actions, after each command.
11371 This function is called with no arguments after each command
11372 whenever `deferred-action-list' is non-nil. */);
11373 Vdeferred_action_function
= Qnil
;
11375 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11376 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11377 The value can be a length of time to show the message for.
11378 If the value is non-nil and not a number, we wait 2 seconds. */);
11379 Vsuggest_key_bindings
= Qt
;
11381 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11382 doc
: /* List of active absolute time timers in order of increasing time. */);
11383 Vtimer_list
= Qnil
;
11385 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11386 doc
: /* List of active idle-time timers in order of increasing time. */);
11387 Vtimer_idle_list
= Qnil
;
11389 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11390 doc
: /* If non-nil, the function that implements the current input method.
11391 It's called with one argument, a printing character that was just read.
11392 \(That means a character with code 040...0176.)
11393 Typically this function uses `read-event' to read additional events.
11394 When it does so, it should first bind `input-method-function' to nil
11395 so it will not be called recursively.
11397 The function should return a list of zero or more events
11398 to be used as input. If it wants to put back some events
11399 to be reconsidered, separately, by the input method,
11400 it can add them to the beginning of `unread-command-events'.
11402 The input method function can find in `input-method-previous-method'
11403 the previous echo area message.
11405 The input method function should refer to the variables
11406 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11407 for guidance on what to do. */);
11408 Vinput_method_function
= Qnil
;
11410 DEFVAR_LISP ("input-method-previous-message",
11411 &Vinput_method_previous_message
,
11412 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11413 This variable exists because `read-event' clears the echo area
11414 before running the input method. It is nil if there was no message. */);
11415 Vinput_method_previous_message
= Qnil
;
11417 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11418 doc
: /* If non-nil, the function that implements the display of help.
11419 It's called with one argument, the help string to display. */);
11420 Vshow_help_function
= Qnil
;
11422 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11423 doc
: /* If non-nil, suppress point adjustment after executing a command.
11425 After a command is executed, if point is moved into a region that has
11426 special properties (e.g. composition, display), we adjust point to
11427 the boundary of the region. But, when a command sets this variable to
11428 non-nil, we suppress the point adjustment.
11430 This variable is set to nil before reading a command, and is checked
11431 just after executing the command. */);
11432 Vdisable_point_adjustment
= Qnil
;
11434 DEFVAR_LISP ("global-disable-point-adjustment",
11435 &Vglobal_disable_point_adjustment
,
11436 doc
: /* *If non-nil, always suppress point adjustment.
11438 The default value is nil, in which case, point adjustment are
11439 suppressed only after special commands that set
11440 `disable-point-adjustment' (which see) to non-nil. */);
11441 Vglobal_disable_point_adjustment
= Qnil
;
11443 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11444 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11445 If the value is not a number, such messages don't time out. */);
11446 Vminibuffer_message_timeout
= make_number (2);
11448 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11449 doc
: /* If non-nil, any keyboard input throws to this symbol.
11450 The value of that variable is passed to `quit-flag' and later causes a
11451 peculiar kind of quitting. */);
11452 Vthrow_on_input
= Qnil
;
11456 keys_of_keyboard ()
11458 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11459 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11460 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11461 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11462 initial_define_key (meta_map
, 'x', "execute-extended-command");
11464 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11465 "handle-delete-frame");
11466 /* Here we used to use `ignore-event' which would simple set prefix-arg to
11467 current-prefix-arg, as is done in `handle-switch-frame'.
11468 But `handle-switch-frame is not run from the special-map.
11469 Commands from that map are run in a special way that automatically
11470 preserves the prefix-arg. Restoring the prefix arg here is not just
11471 redundant but harmful:
11473 - current-prefix-arg is set to non-nil, prefix-arg is set to nil.
11474 - after the first prompt, the exit-minibuffer-hook is run which may
11475 iconify a frame and thus push a `iconify-frame' event.
11476 - after running exit-minibuffer-hook, current-prefix-arg is
11477 restored to the non-nil value it had before the prompt.
11478 - we enter the second prompt.
11479 current-prefix-arg is non-nil, prefix-arg is nil.
11480 - before running the first real event, we run the special iconify-frame
11481 event, but we pass the `special' arg to execute-command so
11482 current-prefix-arg and prefix-arg are left untouched.
11483 - here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
11484 - the next key event will have a spuriously non-nil current-prefix-arg. */
11485 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11487 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11489 /* Handling it at such a low-level causes read_key_sequence to get
11490 * confused because it doesn't realize that the current_buffer was
11491 * changed by read_char.
11493 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11494 * "handle-select-window"); */
11495 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11496 "handle-save-session");
11499 /* Mark the pointers in the kboard objects.
11500 Called by the Fgarbage_collector. */
11506 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11508 if (kb
->kbd_macro_buffer
)
11509 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11511 mark_object (kb
->Voverriding_terminal_local_map
);
11512 mark_object (kb
->Vlast_command
);
11513 mark_object (kb
->Vreal_last_command
);
11514 mark_object (kb
->Vprefix_arg
);
11515 mark_object (kb
->Vlast_prefix_arg
);
11516 mark_object (kb
->kbd_queue
);
11517 mark_object (kb
->defining_kbd_macro
);
11518 mark_object (kb
->Vlast_kbd_macro
);
11519 mark_object (kb
->Vsystem_key_alist
);
11520 mark_object (kb
->system_key_syms
);
11521 mark_object (kb
->Vdefault_minibuffer_frame
);
11522 mark_object (kb
->echo_string
);
11525 struct input_event
*event
;
11526 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11528 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11529 event
= kbd_buffer
;
11530 if (event
->kind
!= SELECTION_REQUEST_EVENT
11531 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11533 mark_object (event
->x
);
11534 mark_object (event
->y
);
11536 mark_object (event
->frame_or_window
);
11537 mark_object (event
->arg
);
11542 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11543 (do not change this comment) */