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 /* Do this after running Vpost_command_hook, for consistency. */
1445 current_kboard
->Vlast_command
= Vthis_command
;
1446 current_kboard
->Vreal_last_command
= real_this_command
;
1450 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1453 /* Make sure the current window's buffer is selected. */
1454 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1455 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1457 /* Display any malloc warning that just came out. Use while because
1458 displaying one warning can cause another. */
1460 while (pending_malloc_warning
)
1461 display_malloc_warning ();
1465 Vdeactivate_mark
= Qnil
;
1467 /* If minibuffer on and echo area in use,
1468 wait a short time and redraw minibuffer. */
1471 && !NILP (echo_area_buffer
[0])
1472 && EQ (minibuf_window
, echo_area_window
)
1473 && NUMBERP (Vminibuffer_message_timeout
))
1475 /* Bind inhibit-quit to t so that C-g gets read in
1476 rather than quitting back to the minibuffer. */
1477 int count
= SPECPDL_INDEX ();
1478 specbind (Qinhibit_quit
, Qt
);
1480 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1481 /* Clear the echo area. */
1483 safe_run_hooks (Qecho_area_clear_hook
);
1485 unbind_to (count
, Qnil
);
1487 /* If a C-g came in before, treat it as input now. */
1488 if (!NILP (Vquit_flag
))
1491 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1496 alloca (0); /* Cause a garbage collection now */
1497 /* Since we can free the most stuff here. */
1498 #endif /* C_ALLOCA */
1501 /* Select the frame that the last event came from. Usually,
1502 switch-frame events will take care of this, but if some lisp
1503 code swallows a switch-frame event, we'll fix things up here.
1504 Is this a good idea? */
1505 if (FRAMEP (internal_last_event_frame
)
1506 && !EQ (internal_last_event_frame
, selected_frame
))
1507 Fselect_frame (internal_last_event_frame
);
1509 /* If it has changed current-menubar from previous value,
1510 really recompute the menubar from the value. */
1511 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1512 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1513 call0 (Qrecompute_lucid_menubar
);
1515 before_command_key_count
= this_command_key_count
;
1516 before_command_echo_length
= echo_length ();
1518 Vthis_command
= Qnil
;
1519 real_this_command
= Qnil
;
1520 Vthis_original_command
= Qnil
;
1522 /* Read next key sequence; i gets its length. */
1523 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1526 /* A filter may have run while we were reading the input. */
1527 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1529 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1530 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1534 /* Now we have read a key sequence of length I,
1535 or else I is 0 and we found end of file. */
1537 if (i
== 0) /* End of file -- happens only in */
1538 return Qnil
; /* a kbd macro, at the end. */
1539 /* -1 means read_key_sequence got a menu that was rejected.
1540 Just loop around and read another command. */
1544 this_command_key_count
= 0;
1545 this_command_key_count_reset
= 0;
1546 this_single_command_key_start
= 0;
1550 last_command_char
= keybuf
[i
- 1];
1552 /* If the previous command tried to force a specific window-start,
1553 forget about that, in case this command moves point far away
1554 from that position. But also throw away beg_unchanged and
1555 end_unchanged information in that case, so that redisplay will
1556 update the whole window properly. */
1557 if (!NILP (XWINDOW (selected_window
)->force_start
))
1560 XWINDOW (selected_window
)->force_start
= Qnil
;
1561 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1562 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1565 cmd
= read_key_sequence_cmd
;
1566 if (!NILP (Vexecuting_kbd_macro
))
1568 if (!NILP (Vquit_flag
))
1570 Vexecuting_kbd_macro
= Qt
;
1571 QUIT
; /* Make some noise. */
1572 /* Will return since macro now empty. */
1576 /* Do redisplay processing after this command except in special
1577 cases identified below. */
1578 prev_buffer
= current_buffer
;
1579 prev_modiff
= MODIFF
;
1580 last_point_position
= PT
;
1581 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1583 /* By default, we adjust point to a boundary of a region that
1584 has such a property that should be treated intangible
1585 (e.g. composition, display). But, some commands will set
1586 this variable differently. */
1587 Vdisable_point_adjustment
= Qnil
;
1589 /* Process filters and timers may have messed with deactivate-mark.
1590 reset it before we execute the command. */
1591 Vdeactivate_mark
= Qnil
;
1593 /* Remap command through active keymaps */
1594 Vthis_original_command
= cmd
;
1598 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1602 /* Execute the command. */
1604 Vthis_command
= cmd
;
1605 real_this_command
= cmd
;
1606 /* Note that the value cell will never directly contain nil
1607 if the symbol is a local variable. */
1608 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1609 safe_run_hooks (Qpre_command_hook
);
1611 already_adjusted
= 0;
1613 if (NILP (Vthis_command
))
1615 /* nil means key is undefined. */
1616 Lisp_Object keys
= Fvector (i
, keybuf
);
1617 keys
= Fkey_description (keys
, Qnil
);
1619 message_with_string ("%s is undefined", keys
, 0);
1620 current_kboard
->defining_kbd_macro
= Qnil
;
1621 update_mode_lines
= 1;
1622 current_kboard
->Vprefix_arg
= Qnil
;
1626 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1628 /* In case we jump to directly_done. */
1629 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1631 /* Recognize some common commands in common situations and
1632 do them directly. */
1633 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1635 struct Lisp_Char_Table
*dp
1636 = window_display_table (XWINDOW (selected_window
));
1637 lose
= FETCH_CHAR (PT_BYTE
);
1639 if (! NILP (Vpost_command_hook
))
1640 /* Put this before calling adjust_point_for_property
1641 so it will only get called once in any case. */
1643 if (current_buffer
== prev_buffer
1644 && last_point_position
!= PT
1645 && NILP (Vdisable_point_adjustment
)
1646 && NILP (Vglobal_disable_point_adjustment
))
1647 adjust_point_for_property (last_point_position
, 0);
1648 already_adjusted
= 1;
1649 if (PT
== last_point_position
+ 1
1651 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1652 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1653 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1654 && (lose
>= 0x20 && lose
< 0x7f)))
1655 : (lose
>= 0x20 && lose
< 0x7f))
1656 /* To extract the case of continuation on
1657 wide-column characters. */
1658 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1659 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1661 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1663 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1665 && !windows_or_buffers_changed
1666 && EQ (current_buffer
->selective_display
, Qnil
)
1667 && !detect_input_pending ()
1668 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1669 && NILP (Vexecuting_kbd_macro
))
1670 direct_output_forward_char (1);
1673 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1675 struct Lisp_Char_Table
*dp
1676 = window_display_table (XWINDOW (selected_window
));
1678 lose
= FETCH_CHAR (PT_BYTE
);
1679 if (! NILP (Vpost_command_hook
))
1681 if (current_buffer
== prev_buffer
1682 && last_point_position
!= PT
1683 && NILP (Vdisable_point_adjustment
)
1684 && NILP (Vglobal_disable_point_adjustment
))
1685 adjust_point_for_property (last_point_position
, 0);
1686 already_adjusted
= 1;
1687 if (PT
== last_point_position
- 1
1689 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1690 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1691 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1692 && (lose
>= 0x20 && lose
< 0x7f)))
1693 : (lose
>= 0x20 && lose
< 0x7f))
1694 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1696 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1698 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1700 && !windows_or_buffers_changed
1701 && EQ (current_buffer
->selective_display
, Qnil
)
1702 && !detect_input_pending ()
1703 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1704 && NILP (Vexecuting_kbd_macro
))
1705 direct_output_forward_char (-1);
1708 else if (EQ (Vthis_command
, Qself_insert_command
)
1709 /* Try this optimization only on char keystrokes. */
1710 && NATNUMP (last_command_char
)
1711 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1714 = translate_char (Vtranslation_table_for_input
,
1715 XFASTINT (last_command_char
), 0, 0, 0);
1717 if (NILP (Vexecuting_kbd_macro
)
1718 && !EQ (minibuf_window
, selected_window
))
1720 if (!nonundocount
|| nonundocount
>= 20)
1728 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1730 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1732 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1734 || MODIFF
<= SAVE_MODIFF
1735 || windows_or_buffers_changed
1736 || !EQ (current_buffer
->selective_display
, Qnil
)
1737 || detect_input_pending ()
1738 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1739 || !NILP (Vexecuting_kbd_macro
));
1741 value
= internal_self_insert (c
, 0);
1746 if (! NILP (Vpost_command_hook
))
1747 /* Put this before calling adjust_point_for_property
1748 so it will only get called once in any case. */
1751 /* VALUE == 1 when AFTER-CHANGE functions are
1752 installed which is the case most of the time
1753 because FONT-LOCK installs one. */
1754 if (!lose
&& !value
)
1755 direct_output_for_insert (c
);
1760 /* Here for a command that isn't executed directly */
1763 #ifdef HAVE_X_WINDOWS
1764 int scount
= SPECPDL_INDEX ();
1766 if (display_hourglass_p
1767 && NILP (Vexecuting_kbd_macro
))
1769 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1775 if (NILP (current_kboard
->Vprefix_arg
))
1777 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1779 #ifdef HAVE_X_WINDOWS
1780 /* Do not check display_hourglass_p here, because
1781 Fcommand_execute could change it, but we should cancel
1782 hourglass cursor anyway.
1783 But don't cancel the hourglass within a macro
1784 just because a command in the macro finishes. */
1785 if (NILP (Vexecuting_kbd_macro
))
1786 unbind_to (scount
, Qnil
);
1791 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1793 /* Note that the value cell will never directly contain nil
1794 if the symbol is a local variable. */
1795 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1796 safe_run_hooks (Qpost_command_hook
);
1798 /* If displaying a message, resize the echo area window to fit
1799 that message's size exactly. */
1800 if (!NILP (echo_area_buffer
[0]))
1801 resize_echo_area_exactly ();
1803 if (!NILP (Vdeferred_action_list
))
1804 safe_run_hooks (Qdeferred_action_function
);
1806 /* If there is a prefix argument,
1807 1) We don't want Vlast_command to be ``universal-argument''
1808 (that would be dumb), so don't set Vlast_command,
1809 2) we want to leave echoing on so that the prefix will be
1810 echoed as part of this key sequence, so don't call
1812 3) we want to leave this_command_key_count non-zero, so that
1813 read_char will realize that it is re-reading a character, and
1814 not echo it a second time.
1816 If the command didn't actually create a prefix arg,
1817 but is merely a frame event that is transparent to prefix args,
1818 then the above doesn't apply. */
1819 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1821 current_kboard
->Vlast_command
= Vthis_command
;
1822 current_kboard
->Vreal_last_command
= real_this_command
;
1824 this_command_key_count
= 0;
1825 this_command_key_count_reset
= 0;
1826 this_single_command_key_start
= 0;
1829 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1831 /* Setting transient-mark-mode to `only' is a way of
1832 turning it on for just one command. */
1834 if (EQ (Vtransient_mark_mode
, Qidentity
))
1835 Vtransient_mark_mode
= Qnil
;
1836 if (EQ (Vtransient_mark_mode
, Qonly
))
1837 Vtransient_mark_mode
= Qidentity
;
1839 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1841 /* We could also call `deactivate'mark'. */
1842 if (EQ (Vtransient_mark_mode
, Qlambda
))
1843 Vtransient_mark_mode
= Qnil
;
1846 current_buffer
->mark_active
= Qnil
;
1847 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1850 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1851 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1856 if (current_buffer
== prev_buffer
1857 && last_point_position
!= PT
1858 && NILP (Vdisable_point_adjustment
)
1859 && NILP (Vglobal_disable_point_adjustment
)
1860 && !already_adjusted
)
1861 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1863 /* Install chars successfully executed in kbd macro. */
1865 if (!NILP (current_kboard
->defining_kbd_macro
)
1866 && NILP (current_kboard
->Vprefix_arg
))
1867 finalize_kbd_macro_chars ();
1871 any_kboard_state ();
1876 extern Lisp_Object Qcomposition
, Qdisplay
;
1878 /* Adjust point to a boundary of a region that has such a property
1879 that should be treated intangible. For the moment, we check
1880 `composition', `display' and `invisible' properties.
1881 LAST_PT is the last position of point. */
1883 extern Lisp_Object Qafter_string
, Qbefore_string
;
1884 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1887 adjust_point_for_property (last_pt
, modified
)
1892 Lisp_Object val
, overlay
, tmp
;
1893 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1896 /* FIXME: cycling is probably not necessary because these properties
1897 can't be usefully combined anyway. */
1898 while (check_composition
|| check_display
|| check_invisible
)
1900 if (check_composition
1901 && PT
> BEGV
&& PT
< ZV
1902 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1903 && COMPOSITION_VALID_P (beg
, end
, val
)
1904 && beg
< PT
/* && end > PT <- It's always the case. */
1905 && (last_pt
<= beg
|| last_pt
>= end
))
1908 SET_PT (PT
< last_pt
? beg
: end
);
1909 check_display
= check_invisible
= 1;
1911 check_composition
= 0;
1913 && PT
> BEGV
&& PT
< ZV
1914 && !NILP (val
= get_char_property_and_overlay
1915 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1916 && display_prop_intangible_p (val
)
1917 && (!OVERLAYP (overlay
)
1918 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1919 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1920 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1921 && (beg
< PT
/* && end > PT <- It's always the case. */
1922 || (beg
<= PT
&& STRINGP (val
) && SCHARS (val
) == 0)))
1925 SET_PT (PT
< last_pt
1926 ? (STRINGP (val
) && SCHARS (val
) == 0 ? beg
- 1 : beg
)
1928 check_composition
= check_invisible
= 1;
1931 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1933 int inv
, ellipsis
= 0;
1936 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1938 && !NILP (val
= get_char_property_and_overlay
1939 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1940 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1942 ellipsis
= ellipsis
|| inv
> 1
1943 || (OVERLAYP (overlay
)
1944 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1945 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1946 tmp
= Fnext_single_char_property_change
1947 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1948 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1951 && !NILP (val
= get_char_property_and_overlay
1952 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1953 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1955 ellipsis
= ellipsis
|| inv
> 1
1956 || (OVERLAYP (overlay
)
1957 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1958 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1959 tmp
= Fprevious_single_char_property_change
1960 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1961 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1964 /* Move away from the inside area. */
1965 if (beg
< PT
&& end
> PT
)
1967 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1968 /* We haven't moved yet (so we don't need to fear
1969 infinite-looping) and we were outside the range
1970 before (so either end of the range still corresponds
1971 to a move in the right direction): pretend we moved
1972 less than we actually did, so that we still have
1973 more freedom below in choosing which end of the range
1975 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1976 /* We either have moved already or the last point
1977 was already in the range: we don't get to choose
1978 which end of the range we have to go to. */
1979 : (PT
< last_pt
? beg
: end
));
1980 check_composition
= check_display
= 1;
1982 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1983 the point to something other than its argument, due to
1984 point-motion hooks, intangibility, etc. */
1985 xassert (PT
== beg
|| PT
== end
);
1988 /* Pretend the area doesn't exist if the buffer is not
1990 if (!modified
&& !ellipsis
&& beg
< end
)
1992 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1993 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
1994 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
1995 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
1996 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
1997 /* We've already moved as far as we can. Trying to go
1998 to the other end would mean moving backwards and thus
1999 could lead to an infinite loop. */
2001 else if (val
= get_pos_property (make_number (PT
),
2003 TEXT_PROP_MEANS_INVISIBLE (val
)
2004 && (val
= get_pos_property
2005 (make_number (PT
== beg
? end
: beg
),
2007 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2008 (check_composition
= check_display
= 1,
2009 SET_PT (PT
== beg
? end
: beg
));
2012 check_invisible
= 0;
2016 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2019 safe_run_hooks_1 (hook
)
2022 return call1 (Vrun_hooks
, Vinhibit_quit
);
2025 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2028 safe_run_hooks_error (data
)
2031 Lisp_Object args
[3];
2032 args
[0] = build_string ("Error in %s: %s");
2033 args
[1] = Vinhibit_quit
;
2036 return Fset (Vinhibit_quit
, Qnil
);
2039 /* If we get an error while running the hook, cause the hook variable
2040 to be nil. Also inhibit quits, so that C-g won't cause the hook
2041 to mysteriously evaporate. */
2044 safe_run_hooks (hook
)
2047 int count
= SPECPDL_INDEX ();
2048 specbind (Qinhibit_quit
, hook
);
2050 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2052 unbind_to (count
, Qnil
);
2056 /* Number of seconds between polling for input. This is a Lisp
2057 variable that can be bound. */
2059 EMACS_INT polling_period
;
2061 /* Nonzero means polling for input is temporarily suppressed. */
2063 int poll_suppress_count
;
2065 /* Asynchronous timer for polling. */
2067 struct atimer
*poll_timer
;
2070 #ifdef POLL_FOR_INPUT
2072 /* Poll for input, so what we catch a C-g if it comes in. This
2073 function is called from x_make_frame_visible, see comment
2079 if (interrupt_input_blocked
== 0
2080 && !waiting_for_input
)
2081 read_avail_input (0);
2084 /* Timer callback function for poll_timer. TIMER is equal to
2088 poll_for_input (timer
)
2089 struct atimer
*timer
;
2091 if (poll_suppress_count
== 0)
2093 interrupt_input_pending
= 1;
2095 poll_for_input_1 ();
2099 #endif /* POLL_FOR_INPUT */
2101 /* Begin signals to poll for input, if they are appropriate.
2102 This function is called unconditionally from various places. */
2107 #ifdef POLL_FOR_INPUT
2108 if (read_socket_hook
&& !interrupt_input
)
2110 /* Turn alarm handling on unconditionally. It might have
2111 been turned off in process.c. */
2112 turn_on_atimers (1);
2114 /* If poll timer doesn't exist, are we need one with
2115 a different interval, start a new one. */
2116 if (poll_timer
== NULL
2117 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2119 EMACS_TIME interval
;
2122 cancel_atimer (poll_timer
);
2124 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2125 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2126 poll_for_input
, NULL
);
2129 /* Let the timer's callback function poll for input
2130 if this becomes zero. */
2131 --poll_suppress_count
;
2136 /* Nonzero if we are using polling to handle input asynchronously. */
2139 input_polling_used ()
2141 #ifdef POLL_FOR_INPUT
2142 return read_socket_hook
&& !interrupt_input
;
2148 /* Turn off polling. */
2153 #ifdef POLL_FOR_INPUT
2154 if (read_socket_hook
&& !interrupt_input
)
2155 ++poll_suppress_count
;
2159 /* Set the value of poll_suppress_count to COUNT
2160 and start or stop polling accordingly. */
2163 set_poll_suppress_count (count
)
2166 #ifdef POLL_FOR_INPUT
2167 if (count
== 0 && poll_suppress_count
!= 0)
2169 poll_suppress_count
= 1;
2172 else if (count
!= 0 && poll_suppress_count
== 0)
2176 poll_suppress_count
= count
;
2180 /* Bind polling_period to a value at least N.
2181 But don't decrease it. */
2184 bind_polling_period (n
)
2187 #ifdef POLL_FOR_INPUT
2188 int new = polling_period
;
2193 stop_other_atimers (poll_timer
);
2195 specbind (Qpolling_period
, make_number (new));
2196 /* Start a new alarm with the new period. */
2201 /* Apply the control modifier to CHARACTER. */
2207 /* Save the upper bits here. */
2208 int upper
= c
& ~0177;
2212 /* Everything in the columns containing the upper-case letters
2213 denotes a control character. */
2214 if (c
>= 0100 && c
< 0140)
2218 /* Set the shift modifier for a control char
2219 made from a shifted letter. But only for letters! */
2220 if (oc
>= 'A' && oc
<= 'Z')
2221 c
|= shift_modifier
;
2224 /* The lower-case letters denote control characters too. */
2225 else if (c
>= 'a' && c
<= 'z')
2228 /* Include the bits for control and shift
2229 only if the basic ASCII code can't indicate them. */
2233 /* Replace the high bits. */
2234 c
|= (upper
& ~ctrl_modifier
);
2239 /* Display the help-echo property of the character after the mouse pointer.
2240 Either show it in the echo area, or call show-help-function to display
2241 it by other means (maybe in a tooltip).
2243 If HELP is nil, that means clear the previous help echo.
2245 If HELP is a string, display that string. If HELP is a function,
2246 call it with OBJECT and POS as arguments; the function should
2247 return a help string or nil for none. For all other types of HELP,
2248 evaluate it to obtain a string.
2250 WINDOW is the window in which the help was generated, if any.
2251 It is nil if not in a window.
2253 If OBJECT is a buffer, POS is the position in the buffer where the
2254 `help-echo' text property was found.
2256 If OBJECT is an overlay, that overlay has a `help-echo' property,
2257 and POS is the position in the overlay's buffer under the mouse.
2259 If OBJECT is a string (an overlay string or a string displayed with
2260 the `display' property). POS is the position in that string under
2263 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2264 echo overwrites a keystroke echo currently displayed in the echo
2267 Note: this function may only be called with HELP nil or a string
2268 from X code running asynchronously. */
2271 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2272 Lisp_Object help
, window
, object
, pos
;
2273 int ok_to_overwrite_keystroke_echo
;
2275 if (!NILP (help
) && !STRINGP (help
))
2277 if (FUNCTIONP (help
))
2279 Lisp_Object args
[4];
2284 help
= safe_call (4, args
);
2287 help
= safe_eval (help
);
2289 if (!STRINGP (help
))
2294 if (!noninteractive
&& STRINGP (help
))
2295 help
= call1 (Qmouse_fixup_help_message
, help
);
2298 if (STRINGP (help
) || NILP (help
))
2300 if (!NILP (Vshow_help_function
))
2301 call1 (Vshow_help_function
, help
);
2302 else if (/* Don't overwrite minibuffer contents. */
2303 !MINI_WINDOW_P (XWINDOW (selected_window
))
2304 /* Don't overwrite a keystroke echo. */
2305 && (NILP (echo_message_buffer
)
2306 || ok_to_overwrite_keystroke_echo
)
2307 /* Don't overwrite a prompt. */
2308 && !cursor_in_echo_area
)
2312 int count
= SPECPDL_INDEX ();
2314 if (!help_echo_showing_p
)
2315 Vpre_help_message
= current_message ();
2317 specbind (Qmessage_truncate_lines
, Qt
);
2318 message3_nolog (help
, SBYTES (help
),
2319 STRING_MULTIBYTE (help
));
2320 unbind_to (count
, Qnil
);
2322 else if (STRINGP (Vpre_help_message
))
2324 message3_nolog (Vpre_help_message
,
2325 SBYTES (Vpre_help_message
),
2326 STRING_MULTIBYTE (Vpre_help_message
));
2327 Vpre_help_message
= Qnil
;
2333 help_echo_showing_p
= STRINGP (help
);
2339 /* Input of single characters from keyboard */
2341 Lisp_Object
print_help ();
2342 static Lisp_Object
kbd_buffer_get_event ();
2343 static void record_char ();
2346 static jmp_buf wrong_kboard_jmpbuf
;
2349 #define STOP_POLLING \
2350 do { if (! polling_stopped_here) stop_polling (); \
2351 polling_stopped_here = 1; } while (0)
2353 #define RESUME_POLLING \
2354 do { if (polling_stopped_here) start_polling (); \
2355 polling_stopped_here = 0; } while (0)
2357 /* read a character from the keyboard; call the redisplay if needed */
2358 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2359 -1 means do not do redisplay, but do do autosaving.
2362 /* The arguments MAPS and NMAPS are for menu prompting.
2363 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2365 PREV_EVENT is the previous input event, or nil if we are reading
2366 the first event of a key sequence (or not reading a key sequence).
2367 If PREV_EVENT is t, that is a "magic" value that says
2368 not to run input methods, but in other respects to act as if
2369 not reading a key sequence.
2371 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2372 if we used a mouse menu to read the input, or zero otherwise. If
2373 USED_MOUSE_MENU is null, we don't dereference it.
2375 Value is t if we showed a menu and the user rejected it. */
2378 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2382 Lisp_Object prev_event
;
2383 int *used_mouse_menu
;
2385 volatile Lisp_Object c
;
2387 jmp_buf local_getcjmp
;
2389 volatile int key_already_recorded
= 0;
2390 Lisp_Object tem
, save
;
2391 volatile Lisp_Object previous_echo_area_message
;
2392 volatile Lisp_Object also_record
;
2393 volatile int reread
;
2394 struct gcpro gcpro1
, gcpro2
;
2395 int polling_stopped_here
= 0;
2399 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2400 before_command_key_count
= this_command_key_count
;
2401 before_command_echo_length
= echo_length ();
2404 previous_echo_area_message
= Qnil
;
2406 GCPRO2 (c
, previous_echo_area_message
);
2411 if (CONSP (Vunread_post_input_method_events
))
2413 c
= XCAR (Vunread_post_input_method_events
);
2414 Vunread_post_input_method_events
2415 = XCDR (Vunread_post_input_method_events
);
2417 /* Undo what read_char_x_menu_prompt did when it unread
2418 additional keys returned by Fx_popup_menu. */
2420 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2428 if (unread_command_char
!= -1)
2430 XSETINT (c
, unread_command_char
);
2431 unread_command_char
= -1;
2437 if (CONSP (Vunread_command_events
))
2439 c
= XCAR (Vunread_command_events
);
2440 Vunread_command_events
= XCDR (Vunread_command_events
);
2442 /* Undo what read_char_x_menu_prompt did when it unread
2443 additional keys returned by Fx_popup_menu. */
2445 && EQ (XCDR (c
), Qdisabled
)
2446 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2449 /* If the queued event is something that used the mouse,
2450 set used_mouse_menu accordingly. */
2452 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2453 *used_mouse_menu
= 1;
2456 goto reread_for_input_method
;
2459 if (CONSP (Vunread_input_method_events
))
2461 c
= XCAR (Vunread_input_method_events
);
2462 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2464 /* Undo what read_char_x_menu_prompt did when it unread
2465 additional keys returned by Fx_popup_menu. */
2467 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2471 goto reread_for_input_method
;
2474 this_command_key_count_reset
= 0;
2476 if (!NILP (Vexecuting_kbd_macro
))
2478 /* We set this to Qmacro; since that's not a frame, nobody will
2479 try to switch frames on us, and the selected window will
2482 Since this event came from a macro, it would be misleading to
2483 leave internal_last_event_frame set to wherever the last
2484 real event came from. Normally, a switch-frame event selects
2485 internal_last_event_frame after each command is read, but
2486 events read from a macro should never cause a new frame to be
2488 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2490 /* Exit the macro if we are at the end.
2491 Also, some things replace the macro with t
2492 to force an early exit. */
2493 if (EQ (Vexecuting_kbd_macro
, Qt
)
2494 || executing_kbd_macro_index
>= XFASTINT (Flength (Vexecuting_kbd_macro
)))
2500 c
= Faref (Vexecuting_kbd_macro
, make_number (executing_kbd_macro_index
));
2501 if (STRINGP (Vexecuting_kbd_macro
)
2502 && (XINT (c
) & 0x80) && (XUINT (c
) <= 0xff))
2503 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2505 executing_kbd_macro_index
++;
2510 if (!NILP (unread_switch_frame
))
2512 c
= unread_switch_frame
;
2513 unread_switch_frame
= Qnil
;
2515 /* This event should make it into this_command_keys, and get echoed
2516 again, so we do not set `reread'. */
2520 /* if redisplay was requested */
2521 if (commandflag
>= 0)
2523 /* If there is pending input, process any events which are not
2524 user-visible, such as X selection_request events. */
2526 || detect_input_pending_run_timers (0))
2527 swallow_events (0); /* may clear input_pending */
2529 /* Redisplay if no pending input. */
2530 while (!input_pending
)
2532 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2533 redisplay_preserve_echo_area (5);
2538 /* Normal case: no input arrived during redisplay. */
2541 /* Input arrived and pre-empted redisplay.
2542 Process any events which are not user-visible. */
2544 /* If that cleared input_pending, try again to redisplay. */
2548 /* Message turns off echoing unless more keystrokes turn it on again.
2550 The code in 20.x for the condition was
2552 1. echo_area_glyphs && *echo_area_glyphs
2553 2. && echo_area_glyphs != current_kboard->echobuf
2554 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2556 (1) means there's a current message displayed
2558 (2) means it's not the message from echoing from the current
2561 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2562 is set to a non-null value. This is done in read_char and it is
2563 set to echo_area_glyphs after a call to echo_char. That means
2564 ok_to_echo_at_next_pause is either null or
2565 current_kboard->echobuf with the appropriate current_kboard at
2568 So, condition (3) means in clear text ok_to_echo_at_next_pause
2569 must be either null, or the current message isn't from echoing at
2570 all, or it's from echoing from a different kboard than the
2573 if (/* There currently is something in the echo area. */
2574 !NILP (echo_area_buffer
[0])
2575 && (/* And it's either not from echoing. */
2576 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2577 /* Or it's an echo from a different kboard. */
2578 || echo_kboard
!= current_kboard
2579 /* Or we explicitly allow overwriting whatever there is. */
2580 || ok_to_echo_at_next_pause
== NULL
))
2585 /* Try reading a character via menu prompting in the minibuf.
2586 Try this before the sit-for, because the sit-for
2587 would do the wrong thing if we are supposed to do
2588 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2589 after a mouse event so don't try a minibuf menu. */
2591 if (nmaps
> 0 && INTERACTIVE
2592 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2593 /* Don't bring up a menu if we already have another event. */
2594 && NILP (Vunread_command_events
)
2595 && unread_command_char
< 0
2596 && !detect_input_pending_run_timers (0))
2598 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2601 key_already_recorded
= 1;
2606 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2607 We will do that below, temporarily for short sections of code,
2608 when appropriate. local_getcjmp must be in effect
2609 around any call to sit_for or kbd_buffer_get_event;
2610 it *must not* be in effect when we call redisplay. */
2612 if (_setjmp (local_getcjmp
))
2614 /* We must have saved the outer value of getcjmp here,
2615 so restore it now. */
2616 restore_getcjmp (save_jump
);
2617 XSETINT (c
, quit_char
);
2618 internal_last_event_frame
= selected_frame
;
2619 Vlast_event_frame
= internal_last_event_frame
;
2620 /* If we report the quit char as an event,
2621 don't do so more than once. */
2622 if (!NILP (Vinhibit_quit
))
2627 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2628 if (kb
!= current_kboard
)
2630 Lisp_Object link
= kb
->kbd_queue
;
2631 /* We shouldn't get here if we were in single-kboard mode! */
2636 while (CONSP (XCDR (link
)))
2638 if (!NILP (XCDR (link
)))
2642 kb
->kbd_queue
= Fcons (c
, Qnil
);
2644 XSETCDR (link
, Fcons (c
, Qnil
));
2645 kb
->kbd_queue_has_data
= 1;
2646 current_kboard
= kb
;
2647 /* This is going to exit from read_char
2648 so we had better get rid of this frame's stuff. */
2650 longjmp (wrong_kboard_jmpbuf
, 1);
2657 timer_start_idle ();
2659 /* If in middle of key sequence and minibuffer not active,
2660 start echoing if enough time elapses. */
2662 if (minibuf_level
== 0
2663 && !current_kboard
->immediate_echo
2664 && this_command_key_count
> 0
2666 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2667 && NILP (Fzerop (Vecho_keystrokes
))
2668 && (/* No message. */
2669 NILP (echo_area_buffer
[0])
2670 /* Or empty message. */
2671 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2672 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2673 /* Or already echoing from same kboard. */
2674 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2675 /* Or not echoing before and echoing allowed. */
2676 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2680 /* After a mouse event, start echoing right away.
2681 This is because we are probably about to display a menu,
2682 and we don't want to delay before doing so. */
2683 if (EVENT_HAS_PARAMETERS (prev_event
))
2688 double duration
= extract_float (Vecho_keystrokes
);
2689 sec
= (int) duration
;
2690 usec
= (duration
- sec
) * 1000000;
2691 save_getcjmp (save_jump
);
2692 restore_getcjmp (local_getcjmp
);
2693 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2694 restore_getcjmp (save_jump
);
2696 && ! CONSP (Vunread_command_events
))
2701 /* Maybe auto save due to number of keystrokes. */
2703 if (commandflag
!= 0
2704 && auto_save_interval
> 0
2705 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2706 && !detect_input_pending_run_timers (0))
2708 Fdo_auto_save (Qnil
, Qnil
);
2709 /* Hooks can actually change some buffers in auto save. */
2713 /* Try reading using an X menu.
2714 This is never confused with reading using the minibuf
2715 because the recursive call of read_char in read_char_minibuf_menu_prompt
2716 does not pass on any keymaps. */
2718 if (nmaps
> 0 && INTERACTIVE
2719 && !NILP (prev_event
)
2720 && EVENT_HAS_PARAMETERS (prev_event
)
2721 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2722 && !EQ (XCAR (prev_event
), Qtool_bar
)
2723 /* Don't bring up a menu if we already have another event. */
2724 && NILP (Vunread_command_events
)
2725 && unread_command_char
< 0)
2727 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2729 /* Now that we have read an event, Emacs is not idle. */
2735 /* Maybe autosave and/or garbage collect due to idleness. */
2737 if (INTERACTIVE
&& NILP (c
))
2739 int delay_level
, buffer_size
;
2741 /* Slow down auto saves logarithmically in size of current buffer,
2742 and garbage collect while we're at it. */
2743 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2744 last_non_minibuf_size
= Z
- BEG
;
2745 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2747 while (buffer_size
> 64)
2748 delay_level
++, buffer_size
-= buffer_size
>> 2;
2749 if (delay_level
< 4) delay_level
= 4;
2750 /* delay_level is 4 for files under around 50k, 7 at 100k,
2751 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2753 /* Auto save if enough time goes by without input. */
2754 if (commandflag
!= 0
2755 && num_nonmacro_input_events
> last_auto_save
2756 && INTEGERP (Vauto_save_timeout
)
2757 && XINT (Vauto_save_timeout
) > 0)
2761 save_getcjmp (save_jump
);
2762 restore_getcjmp (local_getcjmp
);
2763 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2765 restore_getcjmp (save_jump
);
2768 && ! CONSP (Vunread_command_events
))
2770 Fdo_auto_save (Qnil
, Qnil
);
2772 /* If we have auto-saved and there is still no input
2773 available, garbage collect if there has been enough
2774 consing going on to make it worthwhile. */
2775 if (!detect_input_pending_run_timers (0)
2776 && consing_since_gc
> gc_cons_threshold
/ 2)
2777 Fgarbage_collect ();
2784 /* If this has become non-nil here, it has been set by a timer
2785 or sentinel or filter. */
2786 if (CONSP (Vunread_command_events
))
2788 c
= XCAR (Vunread_command_events
);
2789 Vunread_command_events
= XCDR (Vunread_command_events
);
2792 /* Read something from current KBOARD's side queue, if possible. */
2796 if (current_kboard
->kbd_queue_has_data
)
2798 if (!CONSP (current_kboard
->kbd_queue
))
2800 c
= XCAR (current_kboard
->kbd_queue
);
2801 current_kboard
->kbd_queue
2802 = XCDR (current_kboard
->kbd_queue
);
2803 if (NILP (current_kboard
->kbd_queue
))
2804 current_kboard
->kbd_queue_has_data
= 0;
2805 input_pending
= readable_events (0);
2806 if (EVENT_HAS_PARAMETERS (c
)
2807 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2808 internal_last_event_frame
= XCAR (XCDR (c
));
2809 Vlast_event_frame
= internal_last_event_frame
;
2814 /* If current_kboard's side queue is empty check the other kboards.
2815 If one of them has data that we have not yet seen here,
2816 switch to it and process the data waiting for it.
2818 Note: if the events queued up for another kboard
2819 have already been seen here, and therefore are not a complete command,
2820 the kbd_queue_has_data field is 0, so we skip that kboard here.
2821 That's to avoid an infinite loop switching between kboards here. */
2822 if (NILP (c
) && !single_kboard
)
2825 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2826 if (kb
->kbd_queue_has_data
)
2828 current_kboard
= kb
;
2829 /* This is going to exit from read_char
2830 so we had better get rid of this frame's stuff. */
2832 longjmp (wrong_kboard_jmpbuf
, 1);
2841 /* Finally, we read from the main queue,
2842 and if that gives us something we can't use yet, we put it on the
2843 appropriate side queue and try again. */
2849 /* Actually read a character, waiting if necessary. */
2850 save_getcjmp (save_jump
);
2851 restore_getcjmp (local_getcjmp
);
2852 timer_start_idle ();
2853 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2854 restore_getcjmp (save_jump
);
2857 if (! NILP (c
) && (kb
!= current_kboard
))
2859 Lisp_Object link
= kb
->kbd_queue
;
2862 while (CONSP (XCDR (link
)))
2864 if (!NILP (XCDR (link
)))
2868 kb
->kbd_queue
= Fcons (c
, Qnil
);
2870 XSETCDR (link
, Fcons (c
, Qnil
));
2871 kb
->kbd_queue_has_data
= 1;
2875 current_kboard
= kb
;
2876 /* This is going to exit from read_char
2877 so we had better get rid of this frame's stuff. */
2879 longjmp (wrong_kboard_jmpbuf
, 1);
2884 /* Terminate Emacs in batch mode if at eof. */
2885 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2886 Fkill_emacs (make_number (1));
2890 /* Add in any extra modifiers, where appropriate. */
2891 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2892 || ((extra_keyboard_modifiers
& 0177) < ' '
2893 && (extra_keyboard_modifiers
& 0177) != 0))
2894 XSETINT (c
, make_ctrl_char (XINT (c
)));
2896 /* Transfer any other modifier bits directly from
2897 extra_keyboard_modifiers to c. Ignore the actual character code
2898 in the low 16 bits of extra_keyboard_modifiers. */
2899 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2909 if (commandflag
>= 0
2910 && !input_pending
&& !detect_input_pending_run_timers (0))
2918 /* Buffer switch events are only for internal wakeups
2919 so don't show them to the user.
2920 Also, don't record a key if we already did. */
2921 if (BUFFERP (c
) || key_already_recorded
)
2924 /* Process special events within read_char
2925 and loop around to read another event. */
2928 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2933 int was_locked
= single_kboard
;
2935 last_input_char
= c
;
2936 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2938 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2939 /* We stopped being idle for this event; undo that. This
2940 prevents automatic window selection (under
2941 mouse_autoselect_window from acting as a real input event, for
2942 example banishing the mouse under mouse-avoidance-mode. */
2943 timer_resume_idle ();
2945 /* Resume allowing input from any kboard, if that was true before. */
2947 any_kboard_state ();
2952 /* Handle things that only apply to characters. */
2955 /* If kbd_buffer_get_event gave us an EOF, return that. */
2959 if ((STRINGP (Vkeyboard_translate_table
)
2960 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2961 || (VECTORP (Vkeyboard_translate_table
)
2962 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2963 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2964 && CHAR_VALID_P (XINT (c
), 0)))
2967 d
= Faref (Vkeyboard_translate_table
, c
);
2968 /* nil in keyboard-translate-table means no translation. */
2974 /* If this event is a mouse click in the menu bar,
2975 return just menu-bar for now. Modify the mouse click event
2976 so we won't do this twice, then queue it up. */
2977 if (EVENT_HAS_PARAMETERS (c
)
2979 && CONSP (EVENT_START (c
))
2980 && CONSP (XCDR (EVENT_START (c
))))
2984 posn
= POSN_POSN (EVENT_START (c
));
2985 /* Handle menu-bar events:
2986 insert the dummy prefix event `menu-bar'. */
2987 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2989 /* Change menu-bar to (menu-bar) as the event "position". */
2990 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2993 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
2998 /* Store these characters into recent_keys, the dribble file if any,
2999 and the keyboard macro being defined, if any. */
3001 if (! NILP (also_record
))
3002 record_char (also_record
);
3004 /* Wipe the echo area.
3005 But first, if we are about to use an input method,
3006 save the echo area contents for it to refer to. */
3008 && ! NILP (Vinput_method_function
)
3009 && (unsigned) XINT (c
) >= ' '
3010 && (unsigned) XINT (c
) != 127
3011 && (unsigned) XINT (c
) < 256)
3013 previous_echo_area_message
= Fcurrent_message ();
3014 Vinput_method_previous_message
= previous_echo_area_message
;
3017 /* Now wipe the echo area, except for help events which do their
3018 own stuff with the echo area. */
3020 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3021 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3023 if (!NILP (echo_area_buffer
[0]))
3024 safe_run_hooks (Qecho_area_clear_hook
);
3025 clear_message (1, 0);
3028 reread_for_input_method
:
3030 /* Pass this to the input method, if appropriate. */
3032 && ! NILP (Vinput_method_function
)
3033 /* Don't run the input method within a key sequence,
3034 after the first event of the key sequence. */
3035 && NILP (prev_event
)
3036 && (unsigned) XINT (c
) >= ' '
3037 && (unsigned) XINT (c
) != 127
3038 && (unsigned) XINT (c
) < 256)
3041 int key_count
, key_count_reset
;
3042 struct gcpro gcpro1
;
3043 int count
= SPECPDL_INDEX ();
3045 /* Save the echo status. */
3046 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3047 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3048 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3049 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3052 if (before_command_restore_flag
)
3054 this_command_key_count
= before_command_key_count_1
;
3055 if (this_command_key_count
< this_single_command_key_start
)
3056 this_single_command_key_start
= this_command_key_count
;
3057 echo_truncate (before_command_echo_length_1
);
3058 before_command_restore_flag
= 0;
3062 /* Save the this_command_keys status. */
3063 key_count
= this_command_key_count
;
3064 key_count_reset
= this_command_key_count_reset
;
3067 keys
= Fcopy_sequence (this_command_keys
);
3072 /* Clear out this_command_keys. */
3073 this_command_key_count
= 0;
3074 this_command_key_count_reset
= 0;
3076 /* Now wipe the echo area. */
3077 if (!NILP (echo_area_buffer
[0]))
3078 safe_run_hooks (Qecho_area_clear_hook
);
3079 clear_message (1, 0);
3082 /* If we are not reading a key sequence,
3083 never use the echo area. */
3086 specbind (Qinput_method_use_echo_area
, Qt
);
3089 /* Call the input method. */
3090 tem
= call1 (Vinput_method_function
, c
);
3092 tem
= unbind_to (count
, tem
);
3094 /* Restore the saved echoing state
3095 and this_command_keys state. */
3096 this_command_key_count
= key_count
;
3097 this_command_key_count_reset
= key_count_reset
;
3099 this_command_keys
= keys
;
3102 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3103 current_kboard
->echo_string
= saved_echo_string
;
3104 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3105 if (saved_immediate_echo
)
3110 /* The input method can return no events. */
3113 /* Bring back the previous message, if any. */
3114 if (! NILP (previous_echo_area_message
))
3115 message_with_string ("%s", previous_echo_area_message
, 0);
3118 /* It returned one event or more. */
3120 Vunread_post_input_method_events
3121 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3126 /* Display help if not echoing. */
3127 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3129 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3130 Lisp_Object help
, object
, position
, window
, tem
;
3132 tem
= Fcdr (XCDR (c
));
3135 window
= Fcar (tem
);
3137 object
= Fcar (tem
);
3139 position
= Fcar (tem
);
3141 show_help_echo (help
, window
, object
, position
, 0);
3143 /* We stopped being idle for this event; undo that. */
3144 timer_resume_idle ();
3148 if (! reread
|| this_command_key_count
== 0
3149 || this_command_key_count_reset
)
3152 /* Don't echo mouse motion events. */
3153 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3154 && NILP (Fzerop (Vecho_keystrokes
))
3155 && ! (EVENT_HAS_PARAMETERS (c
)
3156 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3159 if (! NILP (also_record
))
3160 echo_char (also_record
);
3161 /* Once we reread a character, echoing can happen
3162 the next time we pause to read a new one. */
3163 ok_to_echo_at_next_pause
= current_kboard
;
3166 /* Record this character as part of the current key. */
3167 add_command_key (c
);
3168 if (! NILP (also_record
))
3169 add_command_key (also_record
);
3172 last_input_char
= c
;
3175 /* Process the help character specially if enabled */
3176 if (!NILP (Vhelp_form
) && help_char_p (c
))
3179 count
= SPECPDL_INDEX ();
3181 record_unwind_protect (Fset_window_configuration
,
3182 Fcurrent_window_configuration (Qnil
));
3184 tem0
= Feval (Vhelp_form
);
3186 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3190 c
= read_char (0, 0, 0, Qnil
, 0);
3191 while (BUFFERP (c
));
3192 /* Remove the help from the frame */
3193 unbind_to (count
, Qnil
);
3196 if (EQ (c
, make_number (040)))
3200 c
= read_char (0, 0, 0, Qnil
, 0);
3201 while (BUFFERP (c
));
3210 /* Record a key that came from a mouse menu.
3211 Record it for echoing, for this-command-keys, and so on. */
3217 /* Wipe the echo area. */
3218 clear_message (1, 0);
3223 before_command_key_count
= this_command_key_count
;
3224 before_command_echo_length
= echo_length ();
3227 /* Don't echo mouse motion events. */
3228 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3229 && NILP (Fzerop (Vecho_keystrokes
)))
3233 /* Once we reread a character, echoing can happen
3234 the next time we pause to read a new one. */
3235 ok_to_echo_at_next_pause
= 0;
3238 /* Record this character as part of the current key. */
3239 add_command_key (c
);
3241 /* Re-reading in the middle of a command */
3242 last_input_char
= c
;
3246 /* Return 1 if should recognize C as "the help character". */
3254 if (EQ (c
, Vhelp_char
))
3256 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3257 if (EQ (c
, XCAR (tail
)))
3262 /* Record the input event C in various ways. */
3270 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3272 /* To avoid filling recent_keys with help-echo and mouse-movement
3273 events, we filter out repeated help-echo events, only store the
3274 first and last in a series of mouse-movement events, and don't
3275 store repeated help-echo events which are only separated by
3276 mouse-movement events. */
3278 Lisp_Object ev1
, ev2
, ev3
;
3281 if ((ix1
= recent_keys_index
- 1) < 0)
3282 ix1
= NUM_RECENT_KEYS
- 1;
3283 ev1
= AREF (recent_keys
, ix1
);
3285 if ((ix2
= ix1
- 1) < 0)
3286 ix2
= NUM_RECENT_KEYS
- 1;
3287 ev2
= AREF (recent_keys
, ix2
);
3289 if ((ix3
= ix2
- 1) < 0)
3290 ix3
= NUM_RECENT_KEYS
- 1;
3291 ev3
= AREF (recent_keys
, ix3
);
3293 if (EQ (XCAR (c
), Qhelp_echo
))
3295 /* Don't record `help-echo' in recent_keys unless it shows some help
3296 message, and a different help than the previously recorded
3298 Lisp_Object help
, last_help
;
3300 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3301 if (!STRINGP (help
))
3303 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3304 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3306 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3307 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3308 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3310 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3311 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3312 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3313 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3316 else if (EQ (XCAR (c
), Qmouse_movement
))
3318 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3319 So additional mouse movement events replace the last element. */
3320 Lisp_Object last_window
, window
;
3322 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3323 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3324 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3325 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3326 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3328 ASET (recent_keys
, ix1
, c
);
3334 store_kbd_macro_char (c
);
3339 ASET (recent_keys
, recent_keys_index
, c
);
3340 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3341 recent_keys_index
= 0;
3343 else if (recorded
< 0)
3345 /* We need to remove one or two events from recent_keys.
3346 To do this, we simply put nil at those events and move the
3347 recent_keys_index backwards over those events. Usually,
3348 users will never see those nil events, as they will be
3349 overwritten by the command keys entered to see recent_keys
3352 while (recorded
++ < 0 && total_keys
> 0)
3354 if (total_keys
< NUM_RECENT_KEYS
)
3356 if (--recent_keys_index
< 0)
3357 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3358 ASET (recent_keys
, recent_keys_index
, Qnil
);
3362 num_nonmacro_input_events
++;
3364 /* Write c to the dribble file. If c is a lispy event, write
3365 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3366 If you, dear reader, have a better idea, you've got the source. :-) */
3371 if (XUINT (c
) < 0x100)
3372 putc (XINT (c
), dribble
);
3374 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3378 Lisp_Object dribblee
;
3380 /* If it's a structured event, take the event header. */
3381 dribblee
= EVENT_HEAD (c
);
3383 if (SYMBOLP (dribblee
))
3385 putc ('<', dribble
);
3386 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3387 SBYTES (SYMBOL_NAME (dribblee
)),
3389 putc ('>', dribble
);
3401 struct buffer
*old
= current_buffer
;
3402 Fprinc (object
, Qnil
);
3403 set_buffer_internal (XBUFFER (Vstandard_output
));
3404 call0 (intern ("help-mode"));
3405 set_buffer_internal (old
);
3409 /* Copy out or in the info on where C-g should throw to.
3410 This is used when running Lisp code from within get_char,
3411 in case get_char is called recursively.
3412 See read_process_output. */
3418 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3422 restore_getcjmp (temp
)
3425 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3430 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3431 of this function. */
3434 tracking_off (old_value
)
3435 Lisp_Object old_value
;
3437 do_mouse_tracking
= old_value
;
3438 if (NILP (old_value
))
3440 /* Redisplay may have been preempted because there was input
3441 available, and it assumes it will be called again after the
3442 input has been processed. If the only input available was
3443 the sort that we have just disabled, then we need to call
3445 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3447 redisplay_preserve_echo_area (6);
3448 get_input_pending (&input_pending
,
3449 READABLE_EVENTS_DO_TIMERS_NOW
);
3455 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3456 doc
: /* Evaluate BODY with mouse movement events enabled.
3457 Within a `track-mouse' form, mouse motion generates input events that
3458 you can read with `read-event'.
3459 Normally, mouse motion is ignored.
3460 usage: (track-mouse BODY ...) */)
3464 int count
= SPECPDL_INDEX ();
3467 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3469 do_mouse_tracking
= Qt
;
3471 val
= Fprogn (args
);
3472 return unbind_to (count
, val
);
3475 /* If mouse has moved on some frame, return one of those frames.
3476 Return 0 otherwise. */
3481 Lisp_Object tail
, frame
;
3483 FOR_EACH_FRAME (tail
, frame
)
3485 if (XFRAME (frame
)->mouse_moved
)
3486 return XFRAME (frame
);
3492 #endif /* HAVE_MOUSE */
3494 /* Low level keyboard/mouse input.
3495 kbd_buffer_store_event places events in kbd_buffer, and
3496 kbd_buffer_get_event retrieves them. */
3498 /* Return true iff there are any events in the queue that read-char
3499 would return. If this returns false, a read-char would block. */
3501 readable_events (flags
)
3504 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3507 /* If the buffer contains only FOCUS_IN_EVENT events, and
3508 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3509 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3511 if (flags
& (READABLE_EVENTS_FILTER_EVENTS
3512 #ifdef USE_TOOLKIT_SCROLL_BARS
3513 | READABLE_EVENTS_IGNORE_SQUEEZABLES
3517 struct input_event
*event
;
3519 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3526 #ifdef USE_TOOLKIT_SCROLL_BARS
3527 (flags
& READABLE_EVENTS_FILTER_EVENTS
) &&
3529 event
->kind
== FOCUS_IN_EVENT
)
3530 #ifdef USE_TOOLKIT_SCROLL_BARS
3531 && !((flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3532 && event
->kind
== SCROLL_BAR_CLICK_EVENT
3533 && event
->part
== scroll_bar_handle
3534 && event
->modifiers
== 0)
3539 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3542 while (event
!= kbd_store_ptr
);
3549 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3550 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3555 if (current_kboard
->kbd_queue_has_data
)
3561 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3562 if (kb
->kbd_queue_has_data
)
3568 /* Set this for debugging, to have a way to get out */
3573 event_to_kboard (event
)
3574 struct input_event
*event
;
3577 frame
= event
->frame_or_window
;
3579 frame
= XCAR (frame
);
3580 else if (WINDOWP (frame
))
3581 frame
= WINDOW_FRAME (XWINDOW (frame
));
3583 /* There are still some events that don't set this field.
3584 For now, just ignore the problem.
3585 Also ignore dead frames here. */
3586 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3589 return FRAME_KBOARD (XFRAME (frame
));
3594 Lisp_Object Vthrow_on_input
;
3596 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3599 kbd_buffer_store_event (event
)
3600 register struct input_event
*event
;
3602 kbd_buffer_store_event_hold (event
, 0);
3605 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3607 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3608 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3609 Else, if EVENT is a quit event, store the quit event
3610 in HOLD_QUIT, and return (thus ignoring further events).
3612 This is used in read_avail_input to postpone the processing
3613 of the quit event until all subsequent input events have been
3614 parsed (and discarded).
3618 kbd_buffer_store_event_hold (event
, hold_quit
)
3619 register struct input_event
*event
;
3620 struct input_event
*hold_quit
;
3622 if (event
->kind
== NO_EVENT
)
3625 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3628 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3630 register int c
= event
->code
& 0377;
3632 if (event
->modifiers
& ctrl_modifier
)
3633 c
= make_ctrl_char (c
);
3635 c
|= (event
->modifiers
3636 & (meta_modifier
| alt_modifier
3637 | hyper_modifier
| super_modifier
));
3643 struct input_event
*sp
;
3646 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3647 kb
!= current_kboard
))
3650 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3651 Fcons (make_number (c
), Qnil
));
3652 kb
->kbd_queue_has_data
= 1;
3653 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3655 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3658 if (event_to_kboard (sp
) == kb
)
3660 sp
->kind
= NO_EVENT
;
3661 sp
->frame_or_window
= Qnil
;
3671 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3675 /* If this results in a quit_char being returned to Emacs as
3676 input, set Vlast_event_frame properly. If this doesn't
3677 get returned to Emacs as an event, the next event read
3678 will set Vlast_event_frame again, so this is safe to do. */
3682 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3684 focus
= event
->frame_or_window
;
3685 internal_last_event_frame
= focus
;
3686 Vlast_event_frame
= focus
;
3689 last_event_timestamp
= event
->timestamp
;
3690 interrupt_signal (0 /* dummy */);
3694 if (c
&& c
== stop_character
)
3700 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3701 Just ignore the second one. */
3702 else if (event
->kind
== BUFFER_SWITCH_EVENT
3703 && kbd_fetch_ptr
!= kbd_store_ptr
3704 && ((kbd_store_ptr
== kbd_buffer
3705 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3706 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3709 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3710 kbd_store_ptr
= kbd_buffer
;
3712 /* Don't let the very last slot in the buffer become full,
3713 since that would make the two pointers equal,
3714 and that is indistinguishable from an empty buffer.
3715 Discard the event if it would fill the last slot. */
3716 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3718 *kbd_store_ptr
= *event
;
3722 /* If we're inside while-no-input, and this event qualifies
3723 as input, set quit-flag to cause an interrupt. */
3724 if (!NILP (Vthrow_on_input
)
3725 && event
->kind
!= FOCUS_IN_EVENT
3726 && event
->kind
!= HELP_EVENT
3727 && event
->kind
!= DEICONIFY_EVENT
)
3729 Vquit_flag
= Vthrow_on_input
;
3730 /* If we're inside a function that wants immediate quits,
3732 if (immediate_quit
&& NILP (Vinhibit_quit
))
3742 /* Put an input event back in the head of the event queue. */
3745 kbd_buffer_unget_event (event
)
3746 register struct input_event
*event
;
3748 if (kbd_fetch_ptr
== kbd_buffer
)
3749 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3751 /* Don't let the very last slot in the buffer become full, */
3752 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3755 *kbd_fetch_ptr
= *event
;
3760 /* Generate HELP_EVENT input_events in BUFP which has room for
3761 SIZE events. If there's not enough room in BUFP, ignore this
3764 HELP is the help form.
3766 FRAME is the frame on which the help is generated. OBJECT is the
3767 Lisp object where the help was found (a buffer, a string, an
3768 overlay, or nil if neither from a string nor from a buffer. POS is
3769 the position within OBJECT where the help was found.
3771 Value is the number of input_events generated. */
3774 gen_help_event (help
, frame
, window
, object
, pos
)
3775 Lisp_Object help
, frame
, object
, window
;
3778 struct input_event event
;
3782 event
.kind
= HELP_EVENT
;
3783 event
.frame_or_window
= frame
;
3785 event
.x
= WINDOWP (window
) ? window
: frame
;
3788 kbd_buffer_store_event (&event
);
3792 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3795 kbd_buffer_store_help_event (frame
, help
)
3796 Lisp_Object frame
, help
;
3798 struct input_event event
;
3800 event
.kind
= HELP_EVENT
;
3801 event
.frame_or_window
= frame
;
3806 kbd_buffer_store_event (&event
);
3810 /* Discard any mouse events in the event buffer by setting them to
3813 discard_mouse_events ()
3815 struct input_event
*sp
;
3816 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3818 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3821 if (sp
->kind
== MOUSE_CLICK_EVENT
3822 || sp
->kind
== WHEEL_EVENT
3824 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3826 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3828 sp
->kind
= NO_EVENT
;
3834 /* Return non-zero if there are any real events waiting in the event
3835 buffer, not counting `NO_EVENT's.
3837 If DISCARD is non-zero, discard NO_EVENT events at the front of
3838 the input queue, possibly leaving the input queue empty if there
3839 are no real input events. */
3842 kbd_buffer_events_waiting (discard
)
3845 struct input_event
*sp
;
3847 for (sp
= kbd_fetch_ptr
;
3848 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3851 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3858 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3862 /* Clear input event EVENT. */
3866 struct input_event
*event
;
3868 event
->kind
= NO_EVENT
;
3872 /* Read one event from the event buffer, waiting if necessary.
3873 The value is a Lisp object representing the event.
3874 The value is nil for an event that should be ignored,
3875 or that was handled here.
3876 We always read and discard one event. */
3879 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3881 int *used_mouse_menu
;
3890 *kbp
= current_kboard
;
3894 /* Wait until there is input available. */
3897 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3900 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3904 /* If the quit flag is set, then read_char will return
3905 quit_char, so that counts as "available input." */
3906 if (!NILP (Vquit_flag
))
3907 quit_throw_to_read_char ();
3909 /* One way or another, wait until input is available; then, if
3910 interrupt handlers have not read it, read it now. */
3913 wait_for_kbd_input ();
3915 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3919 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3922 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3926 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3928 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3929 /* Pass 1 for EXPECT since we just waited to have input. */
3930 read_avail_input (1);
3932 #endif /* not VMS */
3935 if (CONSP (Vunread_command_events
))
3938 first
= XCAR (Vunread_command_events
);
3939 Vunread_command_events
= XCDR (Vunread_command_events
);
3940 *kbp
= current_kboard
;
3944 /* At this point, we know that there is a readable event available
3945 somewhere. If the event queue is empty, then there must be a
3946 mouse movement enabled and available. */
3947 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3949 struct input_event
*event
;
3951 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3955 last_event_timestamp
= event
->timestamp
;
3958 *kbp
= event_to_kboard (event
);
3960 *kbp
= current_kboard
; /* Better than returning null ptr? */
3962 *kbp
= &the_only_kboard
;
3967 /* These two kinds of events get special handling
3968 and don't actually appear to the command loop.
3969 We return nil for them. */
3970 if (event
->kind
== SELECTION_REQUEST_EVENT
3971 || event
->kind
== SELECTION_CLEAR_EVENT
)
3974 struct input_event copy
;
3976 /* Remove it from the buffer before processing it,
3977 since otherwise swallow_events will see it
3978 and process it again. */
3980 kbd_fetch_ptr
= event
+ 1;
3981 input_pending
= readable_events (0);
3982 x_handle_selection_event (©
);
3984 /* We're getting selection request events, but we don't have
3990 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3991 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3993 /* Make an event (delete-frame (FRAME)). */
3994 obj
= Fcons (event
->frame_or_window
, Qnil
);
3995 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
3996 kbd_fetch_ptr
= event
+ 1;
3999 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
4000 else if (event
->kind
== ICONIFY_EVENT
)
4002 /* Make an event (iconify-frame (FRAME)). */
4003 obj
= Fcons (event
->frame_or_window
, Qnil
);
4004 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
4005 kbd_fetch_ptr
= event
+ 1;
4007 else if (event
->kind
== DEICONIFY_EVENT
)
4009 /* Make an event (make-frame-visible (FRAME)). */
4010 obj
= Fcons (event
->frame_or_window
, Qnil
);
4011 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
4012 kbd_fetch_ptr
= event
+ 1;
4015 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
4017 /* The value doesn't matter here; only the type is tested. */
4018 XSETBUFFER (obj
, current_buffer
);
4019 kbd_fetch_ptr
= event
+ 1;
4021 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4022 || defined (USE_GTK)
4023 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4025 kbd_fetch_ptr
= event
+ 1;
4026 input_pending
= readable_events (0);
4027 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4028 x_activate_menubar (XFRAME (event
->frame_or_window
));
4031 #if defined (WINDOWSNT) || defined (MAC_OS)
4032 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4035 /* Make an event (language-change (KEY_SCRIPT)). */
4036 obj
= Fcons (make_number (event
->code
), Qnil
);
4038 /* Make an event (language-change (FRAME CHARSET LCID)). */
4039 obj
= Fcons (event
->frame_or_window
, Qnil
);
4041 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4042 kbd_fetch_ptr
= event
+ 1;
4045 else if (event
->kind
== SAVE_SESSION_EVENT
)
4047 obj
= Fcons (Qsave_session
, Qnil
);
4048 kbd_fetch_ptr
= event
+ 1;
4050 /* Just discard these, by returning nil.
4051 With MULTI_KBOARD, these events are used as placeholders
4052 when we need to randomly delete events from the queue.
4053 (They shouldn't otherwise be found in the buffer,
4054 but on some machines it appears they do show up
4055 even without MULTI_KBOARD.) */
4056 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4057 mouse events during a popup-menu call. */
4058 else if (event
->kind
== NO_EVENT
)
4059 kbd_fetch_ptr
= event
+ 1;
4060 else if (event
->kind
== HELP_EVENT
)
4062 Lisp_Object object
, position
, help
, frame
, window
;
4064 frame
= event
->frame_or_window
;
4065 object
= event
->arg
;
4066 position
= make_number (event
->code
);
4069 clear_event (event
);
4071 kbd_fetch_ptr
= event
+ 1;
4072 if (!WINDOWP (window
))
4074 obj
= Fcons (Qhelp_echo
,
4075 list5 (frame
, help
, window
, object
, position
));
4077 else if (event
->kind
== FOCUS_IN_EVENT
)
4079 /* Notification of a FocusIn event. The frame receiving the
4080 focus is in event->frame_or_window. Generate a
4081 switch-frame event if necessary. */
4082 Lisp_Object frame
, focus
;
4084 frame
= event
->frame_or_window
;
4085 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4089 if (!EQ (frame
, internal_last_event_frame
)
4090 && !EQ (frame
, selected_frame
))
4091 obj
= make_lispy_switch_frame (frame
);
4092 internal_last_event_frame
= frame
;
4093 kbd_fetch_ptr
= event
+ 1;
4097 /* If this event is on a different frame, return a switch-frame this
4098 time, and leave the event in the queue for next time. */
4102 frame
= event
->frame_or_window
;
4104 frame
= XCAR (frame
);
4105 else if (WINDOWP (frame
))
4106 frame
= WINDOW_FRAME (XWINDOW (frame
));
4108 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4112 if (! EQ (frame
, internal_last_event_frame
)
4113 && !EQ (frame
, selected_frame
))
4114 obj
= make_lispy_switch_frame (frame
);
4115 internal_last_event_frame
= frame
;
4117 /* If we didn't decide to make a switch-frame event, go ahead
4118 and build a real event from the queue entry. */
4122 obj
= make_lispy_event (event
);
4124 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4125 || defined (USE_GTK)
4126 /* If this was a menu selection, then set the flag to inhibit
4127 writing to last_nonmenu_event. Don't do this if the event
4128 we're returning is (menu-bar), though; that indicates the
4129 beginning of the menu sequence, and we might as well leave
4130 that as the `event with parameters' for this selection. */
4132 && !EQ (event
->frame_or_window
, event
->arg
)
4133 && (event
->kind
== MENU_BAR_EVENT
4134 || event
->kind
== TOOL_BAR_EVENT
))
4135 *used_mouse_menu
= 1;
4138 /* Wipe out this event, to catch bugs. */
4139 clear_event (event
);
4140 kbd_fetch_ptr
= event
+ 1;
4145 /* Try generating a mouse motion event. */
4146 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4148 FRAME_PTR f
= some_mouse_moved ();
4149 Lisp_Object bar_window
;
4150 enum scroll_bar_part part
;
4154 *kbp
= current_kboard
;
4155 /* Note that this uses F to determine which display to look at.
4156 If there is no valid info, it does not store anything
4157 so x remains nil. */
4159 (*mouse_position_hook
) (&f
, 0, &bar_window
, &part
, &x
, &y
, &time
);
4163 /* Decide if we should generate a switch-frame event. Don't
4164 generate switch-frame events for motion outside of all Emacs
4170 frame
= FRAME_FOCUS_FRAME (f
);
4172 XSETFRAME (frame
, f
);
4174 if (! EQ (frame
, internal_last_event_frame
)
4175 && !EQ (frame
, selected_frame
))
4176 obj
= make_lispy_switch_frame (frame
);
4177 internal_last_event_frame
= frame
;
4180 /* If we didn't decide to make a switch-frame event, go ahead and
4181 return a mouse-motion event. */
4182 if (!NILP (x
) && NILP (obj
))
4183 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4185 #endif /* HAVE_MOUSE */
4187 /* We were promised by the above while loop that there was
4188 something for us to read! */
4191 input_pending
= readable_events (0);
4193 Vlast_event_frame
= internal_last_event_frame
;
4198 /* Process any events that are not user-visible,
4199 then return, without reading any user-visible events. */
4202 swallow_events (do_display
)
4207 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4209 struct input_event
*event
;
4211 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4215 last_event_timestamp
= event
->timestamp
;
4217 /* These two kinds of events get special handling
4218 and don't actually appear to the command loop. */
4219 if (event
->kind
== SELECTION_REQUEST_EVENT
4220 || event
->kind
== SELECTION_CLEAR_EVENT
)
4223 struct input_event copy
;
4225 /* Remove it from the buffer before processing it,
4226 since otherwise swallow_events called recursively could see it
4227 and process it again. */
4229 kbd_fetch_ptr
= event
+ 1;
4230 input_pending
= readable_events (0);
4231 x_handle_selection_event (©
);
4233 /* We're getting selection request events, but we don't have
4242 old_timers_run
= timers_run
;
4243 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4245 if (timers_run
!= old_timers_run
&& do_display
)
4246 redisplay_preserve_echo_area (7);
4249 /* Record the start of when Emacs is idle,
4250 for the sake of running idle-time timers. */
4257 /* If we are already in the idle state, do nothing. */
4258 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4261 EMACS_GET_TIME (timer_idleness_start_time
);
4263 timer_last_idleness_start_time
= timer_idleness_start_time
;
4265 /* Mark all idle-time timers as once again candidates for running. */
4266 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4270 timer
= XCAR (timers
);
4272 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4274 XVECTOR (timer
)->contents
[0] = Qnil
;
4278 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4283 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4286 /* Resume idle timer from last idle start time. */
4289 timer_resume_idle ()
4291 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4294 timer_idleness_start_time
= timer_last_idleness_start_time
;
4297 /* This is only for debugging. */
4298 struct input_event last_timer_event
;
4300 /* Check whether a timer has fired. To prevent larger problems we simply
4301 disregard elements that are not proper timers. Do not make a circular
4302 timer list for the time being.
4304 Returns the number of seconds to wait until the next timer fires. If a
4305 timer is triggering now, return zero seconds.
4306 If no timer is active, return -1 seconds.
4308 If a timer is ripe, we run it, with quitting turned off.
4310 DO_IT_NOW is now ignored. It used to mean that we should
4311 run the timer directly instead of queueing a timer-event.
4312 Now we always run timers directly. */
4315 timer_check (do_it_now
)
4318 EMACS_TIME nexttime
;
4319 EMACS_TIME now
, idleness_now
;
4320 Lisp_Object timers
, idle_timers
, chosen_timer
;
4321 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4323 EMACS_SET_SECS (nexttime
, -1);
4324 EMACS_SET_USECS (nexttime
, -1);
4326 /* Always consider the ordinary timers. */
4327 timers
= Vtimer_list
;
4328 /* Consider the idle timers only if Emacs is idle. */
4329 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4330 idle_timers
= Vtimer_idle_list
;
4333 chosen_timer
= Qnil
;
4334 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4336 if (CONSP (timers
) || CONSP (idle_timers
))
4338 EMACS_GET_TIME (now
);
4339 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4340 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4343 while (CONSP (timers
) || CONSP (idle_timers
))
4345 Lisp_Object
*vector
;
4346 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4347 EMACS_TIME timer_time
, idle_timer_time
;
4348 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4350 /* Skip past invalid timers and timers already handled. */
4353 timer
= XCAR (timers
);
4354 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4356 timers
= XCDR (timers
);
4359 vector
= XVECTOR (timer
)->contents
;
4361 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4362 || !INTEGERP (vector
[3])
4363 || ! NILP (vector
[0]))
4365 timers
= XCDR (timers
);
4369 if (!NILP (idle_timers
))
4371 timer
= XCAR (idle_timers
);
4372 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4374 idle_timers
= XCDR (idle_timers
);
4377 vector
= XVECTOR (timer
)->contents
;
4379 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4380 || !INTEGERP (vector
[3])
4381 || ! NILP (vector
[0]))
4383 idle_timers
= XCDR (idle_timers
);
4388 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4389 based on the next ordinary timer.
4390 TIMER_DIFFERENCE is the distance in time from NOW to when
4391 this timer becomes ripe (negative if it's already ripe). */
4394 timer
= XCAR (timers
);
4395 vector
= XVECTOR (timer
)->contents
;
4396 EMACS_SET_SECS (timer_time
,
4397 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4398 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4399 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4402 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4403 based on the next idle timer. */
4404 if (!NILP (idle_timers
))
4406 idle_timer
= XCAR (idle_timers
);
4407 vector
= XVECTOR (idle_timer
)->contents
;
4408 EMACS_SET_SECS (idle_timer_time
,
4409 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4410 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4411 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4414 /* Decide which timer is the next timer,
4415 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4416 Also step down the list where we found that timer. */
4418 if (! NILP (timers
) && ! NILP (idle_timers
))
4421 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4422 if (EMACS_TIME_NEG_P (temp
))
4424 chosen_timer
= timer
;
4425 timers
= XCDR (timers
);
4426 difference
= timer_difference
;
4430 chosen_timer
= idle_timer
;
4431 idle_timers
= XCDR (idle_timers
);
4432 difference
= idle_timer_difference
;
4435 else if (! NILP (timers
))
4437 chosen_timer
= timer
;
4438 timers
= XCDR (timers
);
4439 difference
= timer_difference
;
4443 chosen_timer
= idle_timer
;
4444 idle_timers
= XCDR (idle_timers
);
4445 difference
= idle_timer_difference
;
4447 vector
= XVECTOR (chosen_timer
)->contents
;
4449 /* If timer is ripe, run it if it hasn't been run. */
4450 if (EMACS_TIME_NEG_P (difference
)
4451 || (EMACS_SECS (difference
) == 0
4452 && EMACS_USECS (difference
) == 0))
4454 if (NILP (vector
[0]))
4456 int was_locked
= single_kboard
;
4457 int count
= SPECPDL_INDEX ();
4458 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4460 /* Mark the timer as triggered to prevent problems if the lisp
4461 code fails to reschedule it right. */
4464 specbind (Qinhibit_quit
, Qt
);
4466 call1 (Qtimer_event_handler
, chosen_timer
);
4467 Vdeactivate_mark
= old_deactivate_mark
;
4469 unbind_to (count
, Qnil
);
4471 /* Resume allowing input from any kboard, if that was true before. */
4473 any_kboard_state ();
4475 /* Since we have handled the event,
4476 we don't need to tell the caller to wake up and do it. */
4480 /* When we encounter a timer that is still waiting,
4481 return the amount of time to wait before it is ripe. */
4488 /* No timers are pending in the future. */
4489 /* Return 0 if we generated an event, and -1 if not. */
4494 /* Caches for modify_event_symbol. */
4495 static Lisp_Object accent_key_syms
;
4496 static Lisp_Object func_key_syms
;
4497 static Lisp_Object mouse_syms
;
4498 static Lisp_Object wheel_syms
;
4499 static Lisp_Object drag_n_drop_syms
;
4501 /* This is a list of keysym codes for special "accent" characters.
4502 It parallels lispy_accent_keys. */
4504 static int lispy_accent_codes
[] =
4506 #ifdef XK_dead_circumflex
4511 #ifdef XK_dead_grave
4516 #ifdef XK_dead_tilde
4521 #ifdef XK_dead_diaeresis
4526 #ifdef XK_dead_macron
4531 #ifdef XK_dead_degree
4536 #ifdef XK_dead_acute
4541 #ifdef XK_dead_cedilla
4546 #ifdef XK_dead_breve
4551 #ifdef XK_dead_ogonek
4556 #ifdef XK_dead_caron
4561 #ifdef XK_dead_doubleacute
4562 XK_dead_doubleacute
,
4566 #ifdef XK_dead_abovedot
4571 #ifdef XK_dead_abovering
4581 #ifdef XK_dead_belowdot
4586 #ifdef XK_dead_voiced_sound
4587 XK_dead_voiced_sound
,
4591 #ifdef XK_dead_semivoiced_sound
4592 XK_dead_semivoiced_sound
,
4608 /* This is a list of Lisp names for special "accent" characters.
4609 It parallels lispy_accent_codes. */
4611 static char *lispy_accent_keys
[] =
4629 "dead-voiced-sound",
4630 "dead-semivoiced-sound",
4636 #define FUNCTION_KEY_OFFSET 0x0
4638 char *lispy_function_keys
[] =
4642 0, /* VK_LBUTTON 0x01 */
4643 0, /* VK_RBUTTON 0x02 */
4644 "cancel", /* VK_CANCEL 0x03 */
4645 0, /* VK_MBUTTON 0x04 */
4647 0, 0, 0, /* 0x05 .. 0x07 */
4649 "backspace", /* VK_BACK 0x08 */
4650 "tab", /* VK_TAB 0x09 */
4652 0, 0, /* 0x0A .. 0x0B */
4654 "clear", /* VK_CLEAR 0x0C */
4655 "return", /* VK_RETURN 0x0D */
4657 0, 0, /* 0x0E .. 0x0F */
4659 0, /* VK_SHIFT 0x10 */
4660 0, /* VK_CONTROL 0x11 */
4661 0, /* VK_MENU 0x12 */
4662 "pause", /* VK_PAUSE 0x13 */
4663 "capslock", /* VK_CAPITAL 0x14 */
4665 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4667 "escape", /* VK_ESCAPE 0x1B */
4669 0, 0, 0, 0, /* 0x1C .. 0x1F */
4671 0, /* VK_SPACE 0x20 */
4672 "prior", /* VK_PRIOR 0x21 */
4673 "next", /* VK_NEXT 0x22 */
4674 "end", /* VK_END 0x23 */
4675 "home", /* VK_HOME 0x24 */
4676 "left", /* VK_LEFT 0x25 */
4677 "up", /* VK_UP 0x26 */
4678 "right", /* VK_RIGHT 0x27 */
4679 "down", /* VK_DOWN 0x28 */
4680 "select", /* VK_SELECT 0x29 */
4681 "print", /* VK_PRINT 0x2A */
4682 "execute", /* VK_EXECUTE 0x2B */
4683 "snapshot", /* VK_SNAPSHOT 0x2C */
4684 "insert", /* VK_INSERT 0x2D */
4685 "delete", /* VK_DELETE 0x2E */
4686 "help", /* VK_HELP 0x2F */
4688 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4690 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4692 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4694 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4696 0, 0, 0, 0, 0, 0, 0, 0, 0,
4697 0, 0, 0, 0, 0, 0, 0, 0, 0,
4698 0, 0, 0, 0, 0, 0, 0, 0,
4700 "lwindow", /* VK_LWIN 0x5B */
4701 "rwindow", /* VK_RWIN 0x5C */
4702 "apps", /* VK_APPS 0x5D */
4704 0, 0, /* 0x5E .. 0x5F */
4706 "kp-0", /* VK_NUMPAD0 0x60 */
4707 "kp-1", /* VK_NUMPAD1 0x61 */
4708 "kp-2", /* VK_NUMPAD2 0x62 */
4709 "kp-3", /* VK_NUMPAD3 0x63 */
4710 "kp-4", /* VK_NUMPAD4 0x64 */
4711 "kp-5", /* VK_NUMPAD5 0x65 */
4712 "kp-6", /* VK_NUMPAD6 0x66 */
4713 "kp-7", /* VK_NUMPAD7 0x67 */
4714 "kp-8", /* VK_NUMPAD8 0x68 */
4715 "kp-9", /* VK_NUMPAD9 0x69 */
4716 "kp-multiply", /* VK_MULTIPLY 0x6A */
4717 "kp-add", /* VK_ADD 0x6B */
4718 "kp-separator", /* VK_SEPARATOR 0x6C */
4719 "kp-subtract", /* VK_SUBTRACT 0x6D */
4720 "kp-decimal", /* VK_DECIMAL 0x6E */
4721 "kp-divide", /* VK_DIVIDE 0x6F */
4722 "f1", /* VK_F1 0x70 */
4723 "f2", /* VK_F2 0x71 */
4724 "f3", /* VK_F3 0x72 */
4725 "f4", /* VK_F4 0x73 */
4726 "f5", /* VK_F5 0x74 */
4727 "f6", /* VK_F6 0x75 */
4728 "f7", /* VK_F7 0x76 */
4729 "f8", /* VK_F8 0x77 */
4730 "f9", /* VK_F9 0x78 */
4731 "f10", /* VK_F10 0x79 */
4732 "f11", /* VK_F11 0x7A */
4733 "f12", /* VK_F12 0x7B */
4734 "f13", /* VK_F13 0x7C */
4735 "f14", /* VK_F14 0x7D */
4736 "f15", /* VK_F15 0x7E */
4737 "f16", /* VK_F16 0x7F */
4738 "f17", /* VK_F17 0x80 */
4739 "f18", /* VK_F18 0x81 */
4740 "f19", /* VK_F19 0x82 */
4741 "f20", /* VK_F20 0x83 */
4742 "f21", /* VK_F21 0x84 */
4743 "f22", /* VK_F22 0x85 */
4744 "f23", /* VK_F23 0x86 */
4745 "f24", /* VK_F24 0x87 */
4747 0, 0, 0, 0, /* 0x88 .. 0x8B */
4748 0, 0, 0, 0, /* 0x8C .. 0x8F */
4750 "kp-numlock", /* VK_NUMLOCK 0x90 */
4751 "scroll", /* VK_SCROLL 0x91 */
4753 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4754 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4755 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4756 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4757 "kp-end", /* VK_NUMPAD_END 0x96 */
4758 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4759 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4760 "kp-up", /* VK_NUMPAD_UP 0x99 */
4761 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4762 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4763 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4764 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4766 0, 0, /* 0x9E .. 0x9F */
4769 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4770 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4771 * No other API or message will distinguish left and right keys this way.
4775 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4776 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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,
4785 "attn", /* VK_ATTN 0xF6 */
4786 "crsel", /* VK_CRSEL 0xF7 */
4787 "exsel", /* VK_EXSEL 0xF8 */
4788 "ereof", /* VK_EREOF 0xF9 */
4789 "play", /* VK_PLAY 0xFA */
4790 "zoom", /* VK_ZOOM 0xFB */
4791 "noname", /* VK_NONAME 0xFC */
4792 "pa1", /* VK_PA1 0xFD */
4793 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4797 #else /* not HAVE_NTGUI */
4799 /* This should be dealt with in XTread_socket now, and that doesn't
4800 depend on the client system having the Kana syms defined. See also
4801 the XK_kana_A case below. */
4804 static char *lispy_kana_keys
[] =
4806 /* X Keysym value */
4807 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4808 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4809 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4810 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4811 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4812 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4814 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4815 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4816 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4817 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4818 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4819 "kana-i", "kana-u", "kana-e", "kana-o",
4820 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4821 "prolongedsound", "kana-A", "kana-I", "kana-U",
4822 "kana-E", "kana-O", "kana-KA", "kana-KI",
4823 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4824 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4825 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4826 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4827 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4828 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4829 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4830 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4831 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4832 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4833 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4834 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4836 #endif /* XK_kana_A */
4839 #define FUNCTION_KEY_OFFSET 0xff00
4841 /* You'll notice that this table is arranged to be conveniently
4842 indexed by X Windows keysym values. */
4843 static char *lispy_function_keys
[] =
4845 /* X Keysym value */
4847 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4848 "backspace", "tab", "linefeed", "clear",
4850 0, 0, 0, "pause", /* 0xff10...1f */
4851 0, 0, 0, 0, 0, 0, 0, "escape",
4853 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4854 "romaji", "hiragana", "katakana", "hiragana-katakana",
4855 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4856 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4857 "eisu-toggle", /* 0xff30...3f */
4858 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4859 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4861 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4862 "down", "prior", "next", "end",
4863 "begin", 0, 0, 0, 0, 0, 0, 0,
4864 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4875 "break", /* 0xff6b */
4878 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4879 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4880 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4881 0, 0, 0, 0, 0, 0, 0, 0,
4882 "kp-tab", /* 0xff89 */
4884 "kp-enter", /* 0xff8d */
4886 "kp-f1", /* 0xff91 */
4890 "kp-home", /* 0xff95 */
4895 "kp-prior", /* kp-page-up */
4896 "kp-next", /* kp-page-down */
4902 0, 0, 0, 0, 0, 0, 0, 0, 0,
4903 "kp-multiply", /* 0xffaa */
4908 "kp-divide", /* 0xffaf */
4909 "kp-0", /* 0xffb0 */
4910 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4913 "kp-equal", /* 0xffbd */
4914 "f1", /* 0xffbe */ /* IsFunctionKey */
4916 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4917 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4918 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4919 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4920 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4921 0, 0, 0, 0, 0, 0, 0, 0,
4922 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4923 0, 0, 0, 0, 0, 0, 0, "delete"
4926 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4927 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4929 static char *iso_lispy_function_keys
[] =
4931 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4932 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4933 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4934 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4935 "iso-lefttab", /* 0xfe20 */
4936 "iso-move-line-up", "iso-move-line-down",
4937 "iso-partial-line-up", "iso-partial-line-down",
4938 "iso-partial-space-left", "iso-partial-space-right",
4939 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4940 "iso-release-margin-left", "iso-release-margin-right",
4941 "iso-release-both-margins",
4942 "iso-fast-cursor-left", "iso-fast-cursor-right",
4943 "iso-fast-cursor-up", "iso-fast-cursor-down",
4944 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4945 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4948 #endif /* not HAVE_NTGUI */
4950 Lisp_Object Vlispy_mouse_stem
;
4952 static char *lispy_wheel_names
[] =
4954 "wheel-up", "wheel-down"
4957 /* drag-n-drop events are generated when a set of selected files are
4958 dragged from another application and dropped onto an Emacs window. */
4959 static char *lispy_drag_n_drop_names
[] =
4964 /* Scroll bar parts. */
4965 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4966 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4967 Lisp_Object Qtop
, Qratio
;
4969 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4970 Lisp_Object
*scroll_bar_parts
[] = {
4971 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4972 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4975 /* User signal events. */
4976 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4978 Lisp_Object
*lispy_user_signals
[] =
4980 &Qusr1_signal
, &Qusr2_signal
4984 /* A vector, indexed by button number, giving the down-going location
4985 of currently depressed buttons, both scroll bar and non-scroll bar.
4987 The elements have the form
4988 (BUTTON-NUMBER MODIFIER-MASK . REST)
4989 where REST is the cdr of a position as it would be reported in the event.
4991 The make_lispy_event function stores positions here to tell the
4992 difference between click and drag events, and to store the starting
4993 location to be included in drag events. */
4995 static Lisp_Object button_down_location
;
4997 /* Information about the most recent up-going button event: Which
4998 button, what location, and what time. */
5000 static int last_mouse_button
;
5001 static int last_mouse_x
;
5002 static int last_mouse_y
;
5003 static unsigned long button_down_time
;
5005 /* The maximum time between clicks to make a double-click, or Qnil to
5006 disable double-click detection, or Qt for no time limit. */
5008 Lisp_Object Vdouble_click_time
;
5010 /* Maximum number of pixels the mouse may be moved between clicks
5011 to make a double-click. */
5013 EMACS_INT double_click_fuzz
;
5015 /* The number of clicks in this multiple-click. */
5017 int double_click_count
;
5019 /* Return position of a mouse click or wheel event */
5022 make_lispy_position (f
, x
, y
, time
)
5028 enum window_part part
;
5029 Lisp_Object posn
= Qnil
;
5030 Lisp_Object extra_info
= Qnil
;
5033 /* Set `window' to the window under frame pixel coordinates (x,y) */
5035 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5036 &part
, &wx
, &wy
, 0);
5040 if (WINDOWP (window
))
5042 /* It's a click in window window at frame coordinates (x,y) */
5043 struct window
*w
= XWINDOW (window
);
5044 Lisp_Object string_info
= Qnil
;
5045 int textpos
= -1, rx
= -1, ry
= -1;
5046 int dx
= -1, dy
= -1;
5047 int width
= -1, height
= -1;
5048 Lisp_Object object
= Qnil
;
5050 /* Set event coordinates to window-relative coordinates
5051 for constructing the Lisp event below. */
5055 if (part
== ON_TEXT
)
5057 wx
+= WINDOW_LEFT_MARGIN_WIDTH (w
);
5059 else if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
5061 /* Mode line or header line. Look for a string under
5062 the mouse that may have a `local-map' property. */
5066 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5068 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5069 &object
, &dx
, &dy
, &width
, &height
);
5070 if (STRINGP (string
))
5071 string_info
= Fcons (string
, make_number (charpos
));
5072 if (w
== XWINDOW (selected_window
))
5075 textpos
= XMARKER (w
->pointm
)->charpos
;
5077 else if (part
== ON_VERTICAL_BORDER
)
5079 posn
= Qvertical_line
;
5084 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5089 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5091 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5092 &object
, &dx
, &dy
, &width
, &height
);
5093 if (STRINGP (string
))
5094 string_info
= Fcons (string
, make_number (charpos
));
5095 if (part
== ON_LEFT_MARGIN
)
5098 wx
= window_box_right_offset (w
, TEXT_AREA
) - 1;
5100 else if (part
== ON_LEFT_FRINGE
)
5102 posn
= Qleft_fringe
;
5105 wx
= (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5107 : window_box_width (w
, LEFT_MARGIN_AREA
));
5110 else if (part
== ON_RIGHT_FRINGE
)
5112 posn
= Qright_fringe
;
5115 wx
= (window_box_width (w
, LEFT_MARGIN_AREA
)
5116 + window_box_width (w
, TEXT_AREA
)
5117 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5118 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5124 /* Note: We have no special posn for part == ON_SCROLL_BAR. */
5125 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5130 Lisp_Object string2
, object2
= Qnil
;
5131 struct display_pos p
;
5133 int width2
, height2
;
5134 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5135 &object2
, &dx2
, &dy2
,
5137 textpos
= CHARPOS (p
.pos
);
5138 if (rx
< 0) rx
= wx
;
5139 if (ry
< 0) ry
= wy
;
5140 if (dx
< 0) dx
= dx2
;
5141 if (dy
< 0) dy
= dy2
;
5142 if (width
< 0) width
= width2
;
5143 if (height
< 0) height
= height2
;
5147 posn
= make_number (textpos
);
5148 if (STRINGP (string2
))
5149 string_info
= Fcons (string2
,
5150 make_number (CHARPOS (p
.string_pos
)));
5156 #ifdef HAVE_WINDOW_SYSTEM
5157 if (IMAGEP (object
))
5159 Lisp_Object image_map
, hotspot
;
5160 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5162 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5164 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5165 posn
= XCAR (hotspot
);
5170 extra_info
= Fcons (object
,
5171 Fcons (Fcons (make_number (dx
),
5173 Fcons (Fcons (make_number (width
),
5174 make_number (height
)),
5178 extra_info
= Fcons (string_info
,
5179 Fcons (make_number (textpos
),
5180 Fcons (Fcons (make_number (rx
),
5186 XSETFRAME (window
, f
);
5191 XSETFASTINT (*x
, 0);
5192 XSETFASTINT (*y
, 0);
5195 return Fcons (window
,
5197 Fcons (Fcons (*x
, *y
),
5198 Fcons (make_number (time
),
5202 /* Given a struct input_event, build the lisp event which represents
5203 it. If EVENT is 0, build a mouse movement event from the mouse
5204 movement buffer, which should have a movement event in it.
5206 Note that events must be passed to this function in the order they
5207 are received; this function stores the location of button presses
5208 in order to build drag events when the button is released. */
5211 make_lispy_event (event
)
5212 struct input_event
*event
;
5216 switch (SWITCH_ENUM_CAST (event
->kind
))
5218 /* A simple keystroke. */
5219 case ASCII_KEYSTROKE_EVENT
:
5221 Lisp_Object lispy_c
;
5222 int c
= event
->code
& 0377;
5223 /* Turn ASCII characters into control characters
5225 if (event
->modifiers
& ctrl_modifier
)
5226 c
= make_ctrl_char (c
);
5228 /* Add in the other modifier bits. We took care of ctrl_modifier
5229 just above, and the shift key was taken care of by the X code,
5230 and applied to control characters by make_ctrl_char. */
5231 c
|= (event
->modifiers
5232 & (meta_modifier
| alt_modifier
5233 | hyper_modifier
| super_modifier
));
5234 /* Distinguish Shift-SPC from SPC. */
5235 if ((event
->code
& 0377) == 040
5236 && event
->modifiers
& shift_modifier
)
5237 c
|= shift_modifier
;
5238 button_down_time
= 0;
5239 XSETFASTINT (lispy_c
, c
);
5243 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5245 Lisp_Object lispy_c
;
5246 int c
= event
->code
;
5248 /* Add in the other modifier bits. We took care of ctrl_modifier
5249 just above, and the shift key was taken care of by the X code,
5250 and applied to control characters by make_ctrl_char. */
5251 c
|= (event
->modifiers
5252 & (meta_modifier
| alt_modifier
5253 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5254 /* What about the `shift' modifier ? */
5255 button_down_time
= 0;
5256 XSETFASTINT (lispy_c
, c
);
5260 /* A function key. The symbol may need to have modifier prefixes
5262 case NON_ASCII_KEYSTROKE_EVENT
:
5263 button_down_time
= 0;
5265 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5266 if (event
->code
== lispy_accent_codes
[i
])
5267 return modify_event_symbol (i
,
5269 Qfunction_key
, Qnil
,
5270 lispy_accent_keys
, &accent_key_syms
,
5271 (sizeof (lispy_accent_keys
)
5272 / sizeof (lispy_accent_keys
[0])));
5276 if (event
->code
>= 0x400 && event
->code
< 0x500)
5277 return modify_event_symbol (event
->code
- 0x400,
5278 event
->modifiers
& ~shift_modifier
,
5279 Qfunction_key
, Qnil
,
5280 lispy_kana_keys
, &func_key_syms
,
5281 (sizeof (lispy_kana_keys
)
5282 / sizeof (lispy_kana_keys
[0])));
5283 #endif /* XK_kana_A */
5286 #ifdef ISO_FUNCTION_KEY_OFFSET
5287 if (event
->code
< FUNCTION_KEY_OFFSET
5288 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5289 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5291 Qfunction_key
, Qnil
,
5292 iso_lispy_function_keys
, &func_key_syms
,
5293 (sizeof (iso_lispy_function_keys
)
5294 / sizeof (iso_lispy_function_keys
[0])));
5297 /* Handle system-specific or unknown keysyms. */
5298 if (event
->code
& (1 << 28)
5299 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5300 || (event
->code
- FUNCTION_KEY_OFFSET
5301 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5302 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5304 /* We need to use an alist rather than a vector as the cache
5305 since we can't make a vector long enuf. */
5306 if (NILP (current_kboard
->system_key_syms
))
5307 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5308 return modify_event_symbol (event
->code
,
5311 current_kboard
->Vsystem_key_alist
,
5312 0, ¤t_kboard
->system_key_syms
,
5316 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5318 Qfunction_key
, Qnil
,
5319 lispy_function_keys
, &func_key_syms
,
5320 (sizeof (lispy_function_keys
)
5321 / sizeof (lispy_function_keys
[0])));
5324 /* A mouse click. Figure out where it is, decide whether it's
5325 a press, click or drag, and build the appropriate structure. */
5326 case MOUSE_CLICK_EVENT
:
5327 #ifndef USE_TOOLKIT_SCROLL_BARS
5328 case SCROLL_BAR_CLICK_EVENT
:
5331 int button
= event
->code
;
5333 Lisp_Object position
;
5334 Lisp_Object
*start_pos_ptr
;
5335 Lisp_Object start_pos
;
5339 /* Build the position as appropriate for this mouse click. */
5340 if (event
->kind
== MOUSE_CLICK_EVENT
)
5342 struct frame
*f
= XFRAME (event
->frame_or_window
);
5343 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5347 /* Ignore mouse events that were made on frame that
5348 have been deleted. */
5349 if (! FRAME_LIVE_P (f
))
5352 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5353 /* EVENT->x and EVENT->y are frame-relative pixel
5354 coordinates at this place. Under old redisplay, COLUMN
5355 and ROW are set to frame relative glyph coordinates
5356 which are then used to determine whether this click is
5357 in a menu (non-toolkit version). */
5358 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5359 &column
, &row
, NULL
, 1);
5361 /* In the non-toolkit version, clicks on the menu bar
5362 are ordinary button events in the event buffer.
5363 Distinguish them, and invoke the menu.
5365 (In the toolkit version, the toolkit handles the menu bar
5366 and Emacs doesn't know about it until after the user
5367 makes a selection.) */
5368 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5369 && (event
->modifiers
& down_modifier
))
5371 Lisp_Object items
, item
;
5376 /* Activate the menu bar on the down event. If the
5377 up event comes in before the menu code can deal with it,
5379 if (! (event
->modifiers
& down_modifier
))
5383 /* Find the menu bar item under `column'. */
5385 items
= FRAME_MENU_BAR_ITEMS (f
);
5386 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5388 Lisp_Object pos
, string
;
5389 string
= AREF (items
, i
+ 1);
5390 pos
= AREF (items
, i
+ 3);
5393 if (column
>= XINT (pos
)
5394 && column
< XINT (pos
) + SCHARS (string
))
5396 item
= AREF (items
, i
);
5401 /* ELisp manual 2.4b says (x y) are window relative but
5402 code says they are frame-relative. */
5404 = Fcons (event
->frame_or_window
,
5406 Fcons (Fcons (event
->x
, event
->y
),
5407 Fcons (make_number (event
->timestamp
),
5410 return Fcons (item
, Fcons (position
, Qnil
));
5412 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5414 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5417 #ifndef USE_TOOLKIT_SCROLL_BARS
5420 /* It's a scrollbar click. */
5422 Lisp_Object portion_whole
;
5425 window
= event
->frame_or_window
;
5426 portion_whole
= Fcons (event
->x
, event
->y
);
5427 part
= *scroll_bar_parts
[(int) event
->part
];
5431 Fcons (Qvertical_scroll_bar
,
5432 Fcons (portion_whole
,
5433 Fcons (make_number (event
->timestamp
),
5434 Fcons (part
, Qnil
)))));
5436 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5438 if (button
>= ASIZE (button_down_location
))
5440 button_down_location
= larger_vector (button_down_location
,
5442 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5445 start_pos_ptr
= &AREF (button_down_location
, button
);
5446 start_pos
= *start_pos_ptr
;
5447 *start_pos_ptr
= Qnil
;
5450 /* On window-system frames, use the value of
5451 double-click-fuzz as is. On other frames, interpret it
5452 as a multiple of 1/8 characters. */
5456 if (WINDOWP (event
->frame_or_window
))
5457 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5458 else if (FRAMEP (event
->frame_or_window
))
5459 f
= XFRAME (event
->frame_or_window
);
5463 if (FRAME_WINDOW_P (f
))
5464 fuzz
= double_click_fuzz
;
5466 fuzz
= double_click_fuzz
/ 8;
5468 is_double
= (button
== last_mouse_button
5469 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5470 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5471 && button_down_time
!= 0
5472 && (EQ (Vdouble_click_time
, Qt
)
5473 || (INTEGERP (Vdouble_click_time
)
5474 && ((int)(event
->timestamp
- button_down_time
)
5475 < XINT (Vdouble_click_time
)))));
5478 last_mouse_button
= button
;
5479 last_mouse_x
= XINT (event
->x
);
5480 last_mouse_y
= XINT (event
->y
);
5482 /* If this is a button press, squirrel away the location, so
5483 we can decide later whether it was a click or a drag. */
5484 if (event
->modifiers
& down_modifier
)
5488 double_click_count
++;
5489 event
->modifiers
|= ((double_click_count
> 2)
5494 double_click_count
= 1;
5495 button_down_time
= event
->timestamp
;
5496 *start_pos_ptr
= Fcopy_alist (position
);
5499 /* Now we're releasing a button - check the co-ordinates to
5500 see if this was a click or a drag. */
5501 else if (event
->modifiers
& up_modifier
)
5503 /* If we did not see a down before this up, ignore the up.
5504 Probably this happened because the down event chose a
5505 menu item. It would be an annoyance to treat the
5506 release of the button that chose the menu item as a
5509 if (!CONSP (start_pos
))
5512 event
->modifiers
&= ~up_modifier
;
5513 #if 0 /* Formerly we treated an up with no down as a click event. */
5514 if (!CONSP (start_pos
))
5515 event
->modifiers
|= click_modifier
;
5520 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5522 /* The third element of every position
5523 should be the (x,y) pair. */
5524 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5526 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5528 xdiff
= XINT (event
->x
) - XINT (XCAR (down
));
5529 ydiff
= XINT (event
->y
) - XINT (XCDR (down
));
5532 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5533 && ydiff
< double_click_fuzz
&& ydiff
> - double_click_fuzz
5534 /* Maybe the mouse has moved a lot, caused scrolling, and
5535 eventually ended up at the same screen position (but
5536 not buffer position) in which case it is a drag, not
5538 /* FIXME: OTOH if the buffer position has changed
5539 because of a timer or process filter rather than
5540 because of mouse movement, it should be considered as
5541 a click. But mouse-drag-region completely ignores
5542 this case and it hasn't caused any real problem, so
5543 it's probably OK to ignore it as well. */
5544 && EQ (Fcar (Fcdr (start_pos
)), Fcar (Fcdr (position
))))
5545 /* Mouse hasn't moved (much). */
5546 event
->modifiers
|= click_modifier
;
5549 button_down_time
= 0;
5550 event
->modifiers
|= drag_modifier
;
5553 /* Don't check is_double; treat this as multiple
5554 if the down-event was multiple. */
5555 if (double_click_count
> 1)
5556 event
->modifiers
|= ((double_click_count
> 2)
5562 /* Every mouse event should either have the down_modifier or
5563 the up_modifier set. */
5567 /* Get the symbol we should use for the mouse click. */
5570 head
= modify_event_symbol (button
,
5572 Qmouse_click
, Vlispy_mouse_stem
,
5575 XVECTOR (mouse_syms
)->size
);
5576 if (event
->modifiers
& drag_modifier
)
5581 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5584 Fcons (make_number (double_click_count
),
5595 Lisp_Object position
;
5598 /* Build the position as appropriate for this mouse click. */
5599 struct frame
*f
= XFRAME (event
->frame_or_window
);
5601 /* Ignore wheel events that were made on frame that have been
5603 if (! FRAME_LIVE_P (f
))
5606 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5609 /* Set double or triple modifiers to indicate the wheel speed. */
5611 /* On window-system frames, use the value of
5612 double-click-fuzz as is. On other frames, interpret it
5613 as a multiple of 1/8 characters. */
5618 if (WINDOWP (event
->frame_or_window
))
5619 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5620 else if (FRAMEP (event
->frame_or_window
))
5621 f
= XFRAME (event
->frame_or_window
);
5625 if (FRAME_WINDOW_P (f
))
5626 fuzz
= double_click_fuzz
;
5628 fuzz
= double_click_fuzz
/ 8;
5630 is_double
= (last_mouse_button
< 0
5631 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5632 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5633 && button_down_time
!= 0
5634 && (EQ (Vdouble_click_time
, Qt
)
5635 || (INTEGERP (Vdouble_click_time
)
5636 && ((int)(event
->timestamp
- button_down_time
)
5637 < XINT (Vdouble_click_time
)))));
5640 double_click_count
++;
5641 event
->modifiers
|= ((double_click_count
> 2)
5647 double_click_count
= 1;
5648 event
->modifiers
|= click_modifier
;
5651 button_down_time
= event
->timestamp
;
5652 /* Use a negative value to distinguish wheel from mouse button. */
5653 last_mouse_button
= -1;
5654 last_mouse_x
= XINT (event
->x
);
5655 last_mouse_y
= XINT (event
->y
);
5661 if (event
->modifiers
& up_modifier
)
5663 /* Emit a wheel-up event. */
5664 event
->modifiers
&= ~up_modifier
;
5667 else if (event
->modifiers
& down_modifier
)
5669 /* Emit a wheel-down event. */
5670 event
->modifiers
&= ~down_modifier
;
5674 /* Every wheel event should either have the down_modifier or
5675 the up_modifier set. */
5678 /* Get the symbol we should use for the wheel event. */
5679 head
= modify_event_symbol (symbol_num
,
5685 ASIZE (wheel_syms
));
5688 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5691 Fcons (make_number (double_click_count
),
5700 #ifdef USE_TOOLKIT_SCROLL_BARS
5702 /* We don't have down and up events if using toolkit scroll bars,
5703 so make this always a click event. Store in the `part' of
5704 the Lisp event a symbol which maps to the following actions:
5706 `above_handle' page up
5707 `below_handle' page down
5711 `bottom' bottom of buffer
5712 `handle' thumb has been dragged.
5713 `end-scroll' end of interaction with scroll bar
5715 The incoming input_event contains in its `part' member an
5716 index of type `enum scroll_bar_part' which we can use as an
5717 index in scroll_bar_parts to get the appropriate symbol. */
5719 case SCROLL_BAR_CLICK_EVENT
:
5721 Lisp_Object position
, head
, window
, portion_whole
, part
;
5723 window
= event
->frame_or_window
;
5724 portion_whole
= Fcons (event
->x
, event
->y
);
5725 part
= *scroll_bar_parts
[(int) event
->part
];
5729 Fcons (Qvertical_scroll_bar
,
5730 Fcons (portion_whole
,
5731 Fcons (make_number (event
->timestamp
),
5732 Fcons (part
, Qnil
)))));
5734 /* Always treat scroll bar events as clicks. */
5735 event
->modifiers
|= click_modifier
;
5736 event
->modifiers
&= ~up_modifier
;
5738 if (event
->code
>= ASIZE (mouse_syms
))
5739 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5741 /* Get the symbol we should use for the mouse click. */
5742 head
= modify_event_symbol (event
->code
,
5747 XVECTOR (mouse_syms
)->size
);
5748 return Fcons (head
, Fcons (position
, Qnil
));
5751 #endif /* USE_TOOLKIT_SCROLL_BARS */
5754 case W32_SCROLL_BAR_CLICK_EVENT
:
5756 int button
= event
->code
;
5758 Lisp_Object position
;
5759 Lisp_Object
*start_pos_ptr
;
5760 Lisp_Object start_pos
;
5764 Lisp_Object portion_whole
;
5767 window
= event
->frame_or_window
;
5768 portion_whole
= Fcons (event
->x
, event
->y
);
5769 part
= *scroll_bar_parts
[(int) event
->part
];
5773 Fcons (Qvertical_scroll_bar
,
5774 Fcons (portion_whole
,
5775 Fcons (make_number (event
->timestamp
),
5776 Fcons (part
, Qnil
)))));
5779 /* Always treat W32 scroll bar events as clicks. */
5780 event
->modifiers
|= click_modifier
;
5783 /* Get the symbol we should use for the mouse click. */
5786 head
= modify_event_symbol (button
,
5791 XVECTOR (mouse_syms
)->size
);
5797 #endif /* WINDOWSNT */
5799 case DRAG_N_DROP_EVENT
:
5802 Lisp_Object head
, position
;
5805 /* The frame_or_window field should be a cons of the frame in
5806 which the event occurred and a list of the filenames
5808 if (! CONSP (event
->frame_or_window
))
5811 f
= XFRAME (XCAR (event
->frame_or_window
));
5812 files
= XCDR (event
->frame_or_window
);
5814 /* Ignore mouse events that were made on frames that
5815 have been deleted. */
5816 if (! FRAME_LIVE_P (f
))
5819 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5822 head
= modify_event_symbol (0, event
->modifiers
,
5824 lispy_drag_n_drop_names
,
5825 &drag_n_drop_syms
, 1);
5831 #endif /* HAVE_MOUSE */
5833 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5834 || defined (USE_GTK)
5835 case MENU_BAR_EVENT
:
5836 if (EQ (event
->arg
, event
->frame_or_window
))
5837 /* This is the prefix key. We translate this to
5838 `(menu_bar)' because the code in keyboard.c for menu
5839 events, which we use, relies on this. */
5840 return Fcons (Qmenu_bar
, Qnil
);
5844 case SELECT_WINDOW_EVENT
:
5845 /* Make an event (select-window (WINDOW)). */
5846 return Fcons (Qselect_window
,
5847 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5850 case TOOL_BAR_EVENT
:
5851 if (EQ (event
->arg
, event
->frame_or_window
))
5852 /* This is the prefix key. We translate this to
5853 `(tool_bar)' because the code in keyboard.c for tool bar
5854 events, which we use, relies on this. */
5855 return Fcons (Qtool_bar
, Qnil
);
5856 else if (SYMBOLP (event
->arg
))
5857 return apply_modifiers (event
->modifiers
, event
->arg
);
5860 case USER_SIGNAL_EVENT
:
5861 /* A user signal. */
5862 return *lispy_user_signals
[event
->code
];
5864 case SAVE_SESSION_EVENT
:
5865 return Qsave_session
;
5867 /* The 'kind' field of the event is something we don't recognize. */
5876 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5878 Lisp_Object bar_window
;
5879 enum scroll_bar_part part
;
5883 /* Is it a scroll bar movement? */
5884 if (frame
&& ! NILP (bar_window
))
5886 Lisp_Object part_sym
;
5888 part_sym
= *scroll_bar_parts
[(int) part
];
5889 return Fcons (Qscroll_bar_movement
,
5890 (Fcons (Fcons (bar_window
,
5891 Fcons (Qvertical_scroll_bar
,
5892 Fcons (Fcons (x
, y
),
5893 Fcons (make_number (time
),
5899 /* Or is it an ordinary mouse movement? */
5902 Lisp_Object position
;
5904 position
= make_lispy_position (frame
, &x
, &y
, time
);
5906 return Fcons (Qmouse_movement
,
5912 #endif /* HAVE_MOUSE */
5914 /* Construct a switch frame event. */
5916 make_lispy_switch_frame (frame
)
5919 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5922 /* Manipulating modifiers. */
5924 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5926 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5927 SYMBOL's name of the end of the modifiers; the string from this
5928 position is the unmodified symbol name.
5930 This doesn't use any caches. */
5933 parse_modifiers_uncached (symbol
, modifier_end
)
5941 CHECK_SYMBOL (symbol
);
5944 name
= SYMBOL_NAME (symbol
);
5946 for (i
= 0; i
+2 <= SBYTES (name
); )
5948 int this_mod_end
= 0;
5951 /* See if the name continues with a modifier word.
5952 Check that the word appears, but don't check what follows it.
5953 Set this_mod and this_mod_end to record what we find. */
5955 switch (SREF (name
, i
))
5957 #define SINGLE_LETTER_MOD(BIT) \
5958 (this_mod_end = i + 1, this_mod = BIT)
5961 SINGLE_LETTER_MOD (alt_modifier
);
5965 SINGLE_LETTER_MOD (ctrl_modifier
);
5969 SINGLE_LETTER_MOD (hyper_modifier
);
5973 SINGLE_LETTER_MOD (meta_modifier
);
5977 SINGLE_LETTER_MOD (shift_modifier
);
5981 SINGLE_LETTER_MOD (super_modifier
);
5984 #undef SINGLE_LETTER_MOD
5986 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
5987 if (i + LEN + 1 <= SBYTES (name) \
5988 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
5990 this_mod_end = i + LEN; \
5995 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
5996 MULTI_LETTER_MOD (down_modifier
, "down", 4);
5997 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6001 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6003 #undef MULTI_LETTER_MOD
6007 /* If we found no modifier, stop looking for them. */
6008 if (this_mod_end
== 0)
6011 /* Check there is a dash after the modifier, so that it
6012 really is a modifier. */
6013 if (this_mod_end
>= SBYTES (name
)
6014 || SREF (name
, this_mod_end
) != '-')
6017 /* This modifier is real; look for another. */
6018 modifiers
|= this_mod
;
6019 i
= this_mod_end
+ 1;
6022 /* Should we include the `click' modifier? */
6023 if (! (modifiers
& (down_modifier
| drag_modifier
6024 | double_modifier
| triple_modifier
))
6025 && i
+ 7 == SBYTES (name
)
6026 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
6027 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
6028 modifiers
|= click_modifier
;
6036 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
6037 prepended to the string BASE[0..BASE_LEN-1].
6038 This doesn't use any caches. */
6040 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
6043 int base_len
, base_len_byte
;
6045 /* Since BASE could contain nulls, we can't use intern here; we have
6046 to use Fintern, which expects a genuine Lisp_String, and keeps a
6049 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6055 /* Only the event queue may use the `up' modifier; it should always
6056 be turned into a click or drag event before presented to lisp code. */
6057 if (modifiers
& up_modifier
)
6060 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6061 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6062 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6063 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6064 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6065 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6066 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6067 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6068 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6069 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6070 /* The click modifier is denoted by the absence of other modifiers. */
6074 mod_len
= p
- new_mods
;
6078 Lisp_Object new_name
;
6080 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6081 mod_len
+ base_len_byte
);
6082 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6083 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6085 return Fintern (new_name
, Qnil
);
6090 static char *modifier_names
[] =
6092 "up", "down", "drag", "click", "double", "triple", 0, 0,
6093 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6094 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6096 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6098 static Lisp_Object modifier_symbols
;
6100 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6102 lispy_modifier_list (modifiers
)
6105 Lisp_Object modifier_list
;
6108 modifier_list
= Qnil
;
6109 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6110 if (modifiers
& (1<<i
))
6111 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6114 return modifier_list
;
6118 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6119 where UNMODIFIED is the unmodified form of SYMBOL,
6120 MASK is the set of modifiers present in SYMBOL's name.
6121 This is similar to parse_modifiers_uncached, but uses the cache in
6122 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6123 Qevent_symbol_elements property. */
6126 parse_modifiers (symbol
)
6129 Lisp_Object elements
;
6131 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6132 if (CONSP (elements
))
6137 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6138 Lisp_Object unmodified
;
6141 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6142 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6145 if (modifiers
& ~INTMASK
)
6147 XSETFASTINT (mask
, modifiers
);
6148 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6150 /* Cache the parsing results on SYMBOL. */
6151 Fput (symbol
, Qevent_symbol_element_mask
,
6153 Fput (symbol
, Qevent_symbol_elements
,
6154 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6156 /* Since we know that SYMBOL is modifiers applied to unmodified,
6157 it would be nice to put that in unmodified's cache.
6158 But we can't, since we're not sure that parse_modifiers is
6165 /* Apply the modifiers MODIFIERS to the symbol BASE.
6166 BASE must be unmodified.
6168 This is like apply_modifiers_uncached, but uses BASE's
6169 Qmodifier_cache property, if present. It also builds
6170 Qevent_symbol_elements properties, since it has that info anyway.
6172 apply_modifiers copies the value of BASE's Qevent_kind property to
6173 the modified symbol. */
6175 apply_modifiers (modifiers
, base
)
6179 Lisp_Object cache
, index
, entry
, new_symbol
;
6181 /* Mask out upper bits. We don't know where this value's been. */
6182 modifiers
&= INTMASK
;
6184 /* The click modifier never figures into cache indices. */
6185 cache
= Fget (base
, Qmodifier_cache
);
6186 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6187 entry
= assq_no_quit (index
, cache
);
6190 new_symbol
= XCDR (entry
);
6193 /* We have to create the symbol ourselves. */
6194 new_symbol
= apply_modifiers_uncached (modifiers
,
6195 SDATA (SYMBOL_NAME (base
)),
6196 SCHARS (SYMBOL_NAME (base
)),
6197 SBYTES (SYMBOL_NAME (base
)));
6199 /* Add the new symbol to the base's cache. */
6200 entry
= Fcons (index
, new_symbol
);
6201 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6203 /* We have the parsing info now for free, so we could add it to
6205 XSETFASTINT (index, modifiers);
6206 Fput (new_symbol, Qevent_symbol_element_mask,
6207 Fcons (base, Fcons (index, Qnil)));
6208 Fput (new_symbol, Qevent_symbol_elements,
6209 Fcons (base, lispy_modifier_list (modifiers)));
6210 Sadly, this is only correct if `base' is indeed a base event,
6211 which is not necessarily the case. -stef */
6214 /* Make sure this symbol is of the same kind as BASE.
6216 You'd think we could just set this once and for all when we
6217 intern the symbol above, but reorder_modifiers may call us when
6218 BASE's property isn't set right; we can't assume that just
6219 because it has a Qmodifier_cache property it must have its
6220 Qevent_kind set right as well. */
6221 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6225 kind
= Fget (base
, Qevent_kind
);
6227 Fput (new_symbol
, Qevent_kind
, kind
);
6234 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6235 return a symbol with the modifiers placed in the canonical order.
6236 Canonical order is alphabetical, except for down and drag, which
6237 always come last. The 'click' modifier is never written out.
6239 Fdefine_key calls this to make sure that (for example) C-M-foo
6240 and M-C-foo end up being equivalent in the keymap. */
6243 reorder_modifiers (symbol
)
6246 /* It's hopefully okay to write the code this way, since everything
6247 will soon be in caches, and no consing will be done at all. */
6250 parsed
= parse_modifiers (symbol
);
6251 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6256 /* For handling events, we often want to produce a symbol whose name
6257 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6258 to some base, like the name of a function key or mouse button.
6259 modify_event_symbol produces symbols of this sort.
6261 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6262 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6265 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6266 into symbol names, or a string specifying a name stem used to
6267 construct a symbol name or the form `STEM-N', where N is the decimal
6268 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6269 non-nil; otherwise NAME_TABLE is used.
6271 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6272 persist between calls to modify_event_symbol that it can use to
6273 store a cache of the symbols it's generated for this NAME_TABLE
6274 before. The object stored there may be a vector or an alist.
6276 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6278 MODIFIERS is a set of modifier bits (as given in struct input_events)
6279 whose prefixes should be applied to the symbol name.
6281 SYMBOL_KIND is the value to be placed in the event_kind property of
6282 the returned symbol.
6284 The symbols we create are supposed to have an
6285 `event-symbol-elements' property, which lists the modifiers present
6286 in the symbol's name. */
6289 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6290 name_table
, symbol_table
, table_size
)
6293 Lisp_Object symbol_kind
;
6294 Lisp_Object name_alist_or_stem
;
6296 Lisp_Object
*symbol_table
;
6297 unsigned int table_size
;
6300 Lisp_Object symbol_int
;
6302 /* Get rid of the "vendor-specific" bit here. */
6303 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6305 /* Is this a request for a valid symbol? */
6306 if (symbol_num
< 0 || symbol_num
>= table_size
)
6309 if (CONSP (*symbol_table
))
6310 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6312 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6313 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6314 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6315 we've never used that symbol before. */
6318 if (! VECTORP (*symbol_table
)
6319 || XVECTOR (*symbol_table
)->size
!= table_size
)
6323 XSETFASTINT (size
, table_size
);
6324 *symbol_table
= Fmake_vector (size
, Qnil
);
6327 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6330 /* Have we already used this symbol before? */
6333 /* No; let's create it. */
6334 if (CONSP (name_alist_or_stem
))
6335 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6336 else if (STRINGP (name_alist_or_stem
))
6338 int len
= SBYTES (name_alist_or_stem
);
6339 char *buf
= (char *) alloca (len
+ 50);
6340 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6341 (long) XINT (symbol_int
) + 1);
6342 value
= intern (buf
);
6344 else if (name_table
!= 0 && name_table
[symbol_num
])
6345 value
= intern (name_table
[symbol_num
]);
6347 #ifdef HAVE_WINDOW_SYSTEM
6350 char *name
= x_get_keysym_name (symbol_num
);
6352 value
= intern (name
);
6359 sprintf (buf
, "key-%d", symbol_num
);
6360 value
= intern (buf
);
6363 if (CONSP (*symbol_table
))
6364 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6366 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6368 /* Fill in the cache entries for this symbol; this also
6369 builds the Qevent_symbol_elements property, which the user
6371 apply_modifiers (modifiers
& click_modifier
, value
);
6372 Fput (value
, Qevent_kind
, symbol_kind
);
6375 /* Apply modifiers to that symbol. */
6376 return apply_modifiers (modifiers
, value
);
6379 /* Convert a list that represents an event type,
6380 such as (ctrl meta backspace), into the usual representation of that
6381 event type as a number or a symbol. */
6383 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6384 doc
: /* Convert the event description list EVENT-DESC to an event type.
6385 EVENT-DESC should contain one base event type (a character or symbol)
6386 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6387 drag, down, double or triple). The base must be last.
6388 The return value is an event type (a character or symbol) which
6389 has the same base event type and all the specified modifiers. */)
6391 Lisp_Object event_desc
;
6399 while (CONSP (rest
))
6407 /* Given a symbol, see if it is a modifier name. */
6408 if (SYMBOLP (elt
) && CONSP (rest
))
6409 this = parse_solitary_modifier (elt
);
6413 else if (!NILP (base
))
6414 error ("Two bases given in one event");
6420 /* Let the symbol A refer to the character A. */
6421 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6422 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6424 if (INTEGERP (base
))
6426 /* Turn (shift a) into A. */
6427 if ((modifiers
& shift_modifier
) != 0
6428 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6430 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6431 modifiers
&= ~shift_modifier
;
6434 /* Turn (control a) into C-a. */
6435 if (modifiers
& ctrl_modifier
)
6436 return make_number ((modifiers
& ~ctrl_modifier
)
6437 | make_ctrl_char (XINT (base
)));
6439 return make_number (modifiers
| XINT (base
));
6441 else if (SYMBOLP (base
))
6442 return apply_modifiers (modifiers
, base
);
6445 error ("Invalid base event");
6450 /* Try to recognize SYMBOL as a modifier name.
6451 Return the modifier flag bit, or 0 if not recognized. */
6454 parse_solitary_modifier (symbol
)
6457 Lisp_Object name
= SYMBOL_NAME (symbol
);
6459 switch (SREF (name
, 0))
6461 #define SINGLE_LETTER_MOD(BIT) \
6462 if (SBYTES (name) == 1) \
6465 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6466 if (LEN == SBYTES (name) \
6467 && ! strncmp (SDATA (name), NAME, LEN)) \
6471 SINGLE_LETTER_MOD (alt_modifier
);
6475 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6479 SINGLE_LETTER_MOD (ctrl_modifier
);
6483 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6484 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6488 SINGLE_LETTER_MOD (hyper_modifier
);
6492 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6496 SINGLE_LETTER_MOD (meta_modifier
);
6500 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6504 SINGLE_LETTER_MOD (shift_modifier
);
6508 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6509 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6510 SINGLE_LETTER_MOD (super_modifier
);
6514 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6515 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6516 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6520 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6523 #undef SINGLE_LETTER_MOD
6524 #undef MULTI_LETTER_MOD
6530 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6531 Such a list is not valid as an event,
6532 but it can be a Lucid-style event type list. */
6535 lucid_event_type_list_p (object
)
6540 if (! CONSP (object
))
6543 if (EQ (XCAR (object
), Qhelp_echo
)
6544 || EQ (XCAR (object
), Qvertical_line
)
6545 || EQ (XCAR (object
), Qmode_line
)
6546 || EQ (XCAR (object
), Qheader_line
))
6549 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6553 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6560 /* Store into *addr a value nonzero if terminal input chars are available.
6561 Serves the purpose of ioctl (0, FIONREAD, addr)
6562 but works even if FIONREAD does not exist.
6563 (In fact, this may actually read some input.)
6565 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6566 timer events that are ripe.
6567 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6568 events (FOCUS_IN_EVENT).
6569 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6570 movements and toolkit scroll bar thumb drags. */
6573 get_input_pending (addr
, flags
)
6577 /* First of all, have we already counted some input? */
6578 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6580 /* If input is being read as it arrives, and we have none, there is none. */
6581 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6584 /* Try to read some input and see how much we get. */
6586 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6589 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6592 gobble_input (expected
)
6597 if (interrupt_input
)
6600 mask
= sigblock (sigmask (SIGIO
));
6601 read_avail_input (expected
);
6605 #ifdef POLL_FOR_INPUT
6606 if (read_socket_hook
&& !interrupt_input
&& poll_suppress_count
== 0)
6609 mask
= sigblock (sigmask (SIGALRM
));
6610 read_avail_input (expected
);
6616 read_avail_input (expected
);
6620 /* Put a BUFFER_SWITCH_EVENT in the buffer
6621 so that read_key_sequence will notice the new current buffer. */
6624 record_asynch_buffer_change ()
6626 struct input_event event
;
6630 event
.kind
= BUFFER_SWITCH_EVENT
;
6631 event
.frame_or_window
= Qnil
;
6635 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6636 The purpose of the event is to make read_key_sequence look up the
6637 keymaps again. If we aren't in read_key_sequence, we don't need one,
6638 and the event could cause trouble by messing up (input-pending-p). */
6639 tem
= Fwaiting_for_user_input_p ();
6643 /* We never need these events if we have no asynchronous subprocesses. */
6647 /* Make sure no interrupt happens while storing the event. */
6649 if (interrupt_input
)
6652 mask
= sigblock (sigmask (SIGIO
));
6653 kbd_buffer_store_event (&event
);
6660 kbd_buffer_store_event (&event
);
6667 /* Read any terminal input already buffered up by the system
6668 into the kbd_buffer, but do not wait.
6670 EXPECTED should be nonzero if the caller knows there is some input.
6672 Except on VMS, all input is read by this function.
6673 If interrupt_input is nonzero, this function MUST be called
6674 only when SIGIO is blocked.
6676 Returns the number of keyboard chars read, or -1 meaning
6677 this is a bad time to try to read input. */
6680 read_avail_input (expected
)
6686 if (read_socket_hook
)
6689 struct input_event hold_quit
;
6691 EVENT_INIT (hold_quit
);
6692 hold_quit
.kind
= NO_EVENT
;
6694 /* No need for FIONREAD or fcntl; just say don't wait. */
6695 while (nr
= (*read_socket_hook
) (input_fd
, expected
, &hold_quit
), nr
> 0)
6700 if (hold_quit
.kind
!= NO_EVENT
)
6701 kbd_buffer_store_event (&hold_quit
);
6705 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6706 the kbd_buffer can really hold. That may prevent loss
6707 of characters on some systems when input is stuffed at us. */
6708 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6711 /* Determine how many characters we should *try* to read. */
6714 #else /* not WINDOWSNT */
6716 n_to_read
= dos_keysns ();
6719 #else /* not MSDOS */
6721 /* Find out how much input is available. */
6722 if (ioctl (input_fd
, FIONREAD
, &n_to_read
) < 0)
6723 /* Formerly simply reported no input, but that sometimes led to
6724 a failure of Emacs to terminate.
6725 SIGHUP seems appropriate if we can't reach the terminal. */
6726 /* ??? Is it really right to send the signal just to this process
6727 rather than to the whole process group?
6728 Perhaps on systems with FIONREAD Emacs is alone in its group. */
6730 if (! noninteractive
)
6731 kill (getpid (), SIGHUP
);
6737 if (n_to_read
> sizeof cbuf
)
6738 n_to_read
= sizeof cbuf
;
6739 #else /* no FIONREAD */
6740 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6741 /* Read some input if available, but don't wait. */
6742 n_to_read
= sizeof cbuf
;
6743 fcntl (input_fd
, F_SETFL
, O_NDELAY
);
6748 #endif /* not MSDOS */
6749 #endif /* not WINDOWSNT */
6751 /* Now read; for one reason or another, this will not block.
6752 NREAD is set to the number of chars read. */
6756 cbuf
[0] = dos_keyread ();
6759 nread
= emacs_read (input_fd
, cbuf
, n_to_read
);
6761 /* POSIX infers that processes which are not in the session leader's
6762 process group won't get SIGHUP's at logout time. BSDI adheres to
6763 this part standard and returns -1 from read (0) with errno==EIO
6764 when the control tty is taken away.
6765 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6766 if (nread
== -1 && errno
== EIO
)
6768 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6769 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6770 This looks incorrect, but it isn't, because _BSD causes
6771 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6772 and that causes a value other than 0 when there is no input. */
6778 /* We used to retry the read if it was interrupted.
6779 But this does the wrong thing when O_NDELAY causes
6780 an EAGAIN error. Does anybody know of a situation
6781 where a retry is actually needed? */
6783 nread
< 0 && (errno
== EAGAIN
6797 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6798 fcntl (input_fd
, F_SETFL
, 0);
6799 #endif /* USG or DGUX or CYGWIN */
6800 #endif /* no FIONREAD */
6801 for (i
= 0; i
< nread
; i
++)
6803 struct input_event buf
;
6805 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6807 if (meta_key
== 1 && (cbuf
[i
] & 0x80))
6808 buf
.modifiers
= meta_modifier
;
6813 buf
.frame_or_window
= selected_frame
;
6816 kbd_buffer_store_event (&buf
);
6817 /* Don't look at input that follows a C-g too closely.
6818 This reduces lossage due to autorepeat on C-g. */
6819 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6820 && buf
.code
== quit_char
)
6827 #endif /* not VMS */
6830 handle_async_input ()
6833 extern int select_alarmed
;
6836 interrupt_input_pending
= 0;
6841 nread
= read_avail_input (1);
6842 /* -1 means it's not ok to read the input now.
6843 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6844 0 means there was no keyboard input available. */
6849 select_alarmed
= 1; /* Force the select emulator back to life */
6854 #ifdef SIGIO /* for entire page */
6855 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6858 input_available_signal (signo
)
6861 /* Must preserve main program's value of errno. */
6862 int old_errno
= errno
;
6863 #if defined (USG) && !defined (POSIX_SIGNALS)
6864 /* USG systems forget handlers when they are used;
6865 must reestablish each time */
6866 signal (signo
, input_available_signal
);
6874 interrupt_input_pending
= 1;
6876 SIGNAL_THREAD_CHECK (signo
);
6879 if (input_available_clear_time
)
6880 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6883 handle_async_input ();
6893 /* Send ourselves a SIGIO.
6895 This function exists so that the UNBLOCK_INPUT macro in
6896 blockinput.h can have some way to take care of input we put off
6897 dealing with, without assuming that every file which uses
6898 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6900 reinvoke_input_signal ()
6903 handle_async_input ();
6909 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6910 static Lisp_Object menu_bar_one_keymap_changed_items
;
6912 /* These variables hold the vector under construction within
6913 menu_bar_items and its subroutines, and the current index
6914 for storing into that vector. */
6915 static Lisp_Object menu_bar_items_vector
;
6916 static int menu_bar_items_index
;
6918 /* Return a vector of menu items for a menu bar, appropriate
6919 to the current buffer. Each item has three elements in the vector:
6922 OLD is an old vector we can optionally reuse, or nil. */
6925 menu_bar_items (old
)
6928 /* The number of keymaps we're scanning right now, and the number of
6929 keymaps we have allocated space for. */
6932 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6933 in the current keymaps, or nil where it is not a prefix. */
6936 Lisp_Object def
, tail
;
6945 /* In order to build the menus, we need to call the keymap
6946 accessors. They all call QUIT. But this function is called
6947 during redisplay, during which a quit is fatal. So inhibit
6948 quitting while building the menus.
6949 We do this instead of specbind because (1) errors will clear it anyway
6950 and (2) this avoids risk of specpdl overflow. */
6951 oquit
= Vinhibit_quit
;
6955 menu_bar_items_vector
= old
;
6957 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6958 menu_bar_items_index
= 0;
6960 /* Build our list of keymaps.
6961 If we recognize a function key and replace its escape sequence in
6962 keybuf with its symbol, or if the sequence starts with a mouse
6963 click and we need to switch buffers, we jump back here to rebuild
6964 the initial keymaps from the current buffer. */
6968 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6969 if (!NILP (Voverriding_local_map_menu_flag
))
6971 /* Yes, use them (if non-nil) as well as the global map. */
6972 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6974 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6975 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6976 if (!NILP (Voverriding_local_map
))
6977 maps
[nmaps
++] = Voverriding_local_map
;
6981 /* No, so use major and minor mode keymaps and keymap property.
6982 Note that menu-bar bindings in the local-map and keymap
6983 properties may not work reliable, as they are only
6984 recognized when the menu-bar (or mode-line) is updated,
6985 which does not normally happen after every command. */
6988 nminor
= current_minor_maps (NULL
, &tmaps
);
6989 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
6991 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
6992 maps
[nmaps
++] = tem
;
6993 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
6995 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
6997 maps
[nmaps
++] = current_global_map
;
7000 /* Look up in each map the dummy prefix key `menu-bar'. */
7004 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7005 if (!NILP (maps
[mapno
]))
7007 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7011 menu_bar_one_keymap_changed_items
= Qnil
;
7012 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7016 /* Move to the end those items that should be at the end. */
7018 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7021 int end
= menu_bar_items_index
;
7023 for (i
= 0; i
< end
; i
+= 4)
7024 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7026 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7027 /* Move the item at index I to the end,
7028 shifting all the others forward. */
7029 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7030 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7031 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7032 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7034 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7035 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7036 (end
- i
- 4) * sizeof (Lisp_Object
));
7037 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7038 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7039 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7040 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7045 /* Add nil, nil, nil, nil at the end. */
7046 i
= menu_bar_items_index
;
7047 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7050 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7051 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7052 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7053 menu_bar_items_vector
= tem
;
7055 /* Add this item. */
7056 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7057 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7058 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7059 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7060 menu_bar_items_index
= i
;
7062 Vinhibit_quit
= oquit
;
7063 return menu_bar_items_vector
;
7066 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7067 If there's already an item for KEY, add this DEF to it. */
7069 Lisp_Object item_properties
;
7072 menu_bar_item (key
, item
, dummy1
, dummy2
)
7073 Lisp_Object key
, item
, dummy1
;
7076 struct gcpro gcpro1
;
7080 if (EQ (item
, Qundefined
))
7082 /* If a map has an explicit `undefined' as definition,
7083 discard any previously made menu bar item. */
7085 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7086 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7088 if (menu_bar_items_index
> i
+ 4)
7089 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7090 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7091 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7092 menu_bar_items_index
-= 4;
7096 /* If this keymap has already contributed to this KEY,
7097 don't contribute to it a second time. */
7098 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7099 if (!NILP (tem
) || NILP (item
))
7102 menu_bar_one_keymap_changed_items
7103 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7105 /* We add to menu_bar_one_keymap_changed_items before doing the
7106 parse_menu_item, so that if it turns out it wasn't a menu item,
7107 it still correctly hides any further menu item. */
7109 i
= parse_menu_item (item
, 0, 1);
7114 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7116 /* Find any existing item for this KEY. */
7117 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7118 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7121 /* If we did not find this KEY, add it at the end. */
7122 if (i
== menu_bar_items_index
)
7124 /* If vector is too small, get a bigger one. */
7125 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7128 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7129 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7130 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7131 menu_bar_items_vector
= tem
;
7134 /* Add this item. */
7135 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7136 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7137 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7138 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7139 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7140 menu_bar_items_index
= i
;
7142 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7146 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7147 /* If the new and the old items are not both keymaps,
7148 the lookup will only find `item'. */
7149 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7150 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7154 /* This is used as the handler when calling menu_item_eval_property. */
7156 menu_item_eval_property_1 (arg
)
7159 /* If we got a quit from within the menu computation,
7160 quit all the way out of it. This takes care of C-] in the debugger. */
7161 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7162 Fsignal (Qquit
, Qnil
);
7167 /* Evaluate an expression and return the result (or nil if something
7168 went wrong). Used to evaluate dynamic parts of menu items. */
7170 menu_item_eval_property (sexpr
)
7173 int count
= SPECPDL_INDEX ();
7175 specbind (Qinhibit_redisplay
, Qt
);
7176 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7177 menu_item_eval_property_1
);
7178 return unbind_to (count
, val
);
7181 /* This function parses a menu item and leaves the result in the
7182 vector item_properties.
7183 ITEM is a key binding, a possible menu item.
7184 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7185 evaluate dynamic expressions in the menu item.
7186 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7188 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7189 parse_menu_item returns true if the item is a menu item and false
7193 parse_menu_item (item
, notreal
, inmenubar
)
7195 int notreal
, inmenubar
;
7197 Lisp_Object def
, tem
, item_string
, start
;
7198 Lisp_Object cachelist
;
7200 Lisp_Object keyhint
;
7211 /* Create item_properties vector if necessary. */
7212 if (NILP (item_properties
))
7214 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7216 /* Initialize optional entries. */
7217 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7218 AREF (item_properties
, i
) = Qnil
;
7219 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7221 /* Save the item here to protect it from GC. */
7222 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7224 item_string
= XCAR (item
);
7228 if (STRINGP (item_string
))
7230 /* Old format menu item. */
7231 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7233 /* Maybe help string. */
7234 if (CONSP (item
) && STRINGP (XCAR (item
)))
7236 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7241 /* Maybe key binding cache. */
7242 if (CONSP (item
) && CONSP (XCAR (item
))
7243 && (NILP (XCAR (XCAR (item
)))
7244 || VECTORP (XCAR (XCAR (item
)))))
7246 cachelist
= XCAR (item
);
7250 /* This is the real definition--the function to run. */
7251 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7253 /* Get enable property, if any. */
7256 tem
= Fget (item
, Qmenu_enable
);
7258 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7261 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7263 /* New format menu item. */
7264 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7265 start
= XCDR (item
);
7268 /* We have a real binding. */
7269 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7271 item
= XCDR (start
);
7272 /* Is there a cache list with key equivalences. */
7273 if (CONSP (item
) && CONSP (XCAR (item
)))
7275 cachelist
= XCAR (item
);
7279 /* Parse properties. */
7280 while (CONSP (item
) && CONSP (XCDR (item
)))
7285 if (EQ (tem
, QCenable
))
7286 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7287 else if (EQ (tem
, QCvisible
) && !notreal
)
7289 /* If got a visible property and that evaluates to nil
7290 then ignore this item. */
7291 tem
= menu_item_eval_property (XCAR (item
));
7295 else if (EQ (tem
, QChelp
))
7296 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7297 else if (EQ (tem
, QCfilter
))
7299 else if (EQ (tem
, QCkey_sequence
))
7302 if (NILP (cachelist
)
7303 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7304 /* Be GC protected. Set keyhint to item instead of tem. */
7307 else if (EQ (tem
, QCkeys
))
7310 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7311 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7313 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7318 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7320 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7322 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7329 else if (inmenubar
|| !NILP (start
))
7333 return 0; /* not a menu item */
7335 /* If item string is not a string, evaluate it to get string.
7336 If we don't get a string, skip this item. */
7337 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7338 if (!(STRINGP (item_string
) || notreal
))
7340 item_string
= menu_item_eval_property (item_string
);
7341 if (!STRINGP (item_string
))
7343 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7346 /* If got a filter apply it on definition. */
7347 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7350 def
= menu_item_eval_property (list2 (XCAR (filter
),
7351 list2 (Qquote
, def
)));
7353 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7356 /* Enable or disable selection of item. */
7357 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7363 tem
= menu_item_eval_property (tem
);
7364 if (inmenubar
&& NILP (tem
))
7365 return 0; /* Ignore disabled items in menu bar. */
7366 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7369 /* If we got no definition, this item is just unselectable text which
7370 is OK in a submenu but not in the menubar. */
7372 return (inmenubar
? 0 : 1);
7374 /* See if this is a separate pane or a submenu. */
7375 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7376 tem
= get_keymap (def
, 0, 1);
7377 /* For a subkeymap, just record its details and exit. */
7380 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7381 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7385 /* At the top level in the menu bar, do likewise for commands also.
7386 The menu bar does not display equivalent key bindings anyway.
7387 ITEM_PROPERTY_DEF is already set up properly. */
7391 /* This is a command. See if there is an equivalent key binding. */
7392 if (NILP (cachelist
))
7394 /* We have to create a cachelist. */
7395 CHECK_IMPURE (start
);
7396 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7397 cachelist
= XCAR (XCDR (start
));
7399 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7400 if (!NILP (keyhint
))
7402 XSETCAR (cachelist
, XCAR (keyhint
));
7405 else if (STRINGP (tem
))
7407 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7408 XSETCAR (cachelist
, Qt
);
7412 tem
= XCAR (cachelist
);
7419 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7421 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7424 def
= XCAR (prefix
);
7425 prefix
= XCDR (prefix
);
7428 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7430 if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7432 if (newcache
/* Always check first time. */
7433 /* Should we check everything when precomputing key
7435 /* If something had no key binding before, don't recheck it
7436 because that is too slow--except if we have a list of
7437 rebound commands in Vdefine_key_rebound_commands, do
7438 recheck any command that appears in that list. */
7439 || (CONSP (Vdefine_key_rebound_commands
)
7440 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7443 /* We had a saved key. Is it still bound to the command? */
7446 /* If the command is an alias for another
7447 (such as lmenu.el set it up), check if the
7448 original command matches the cached command. */
7449 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7450 chkcache
= 1; /* Need to recompute key binding. */
7454 /* Recompute equivalent key binding. If the command is an alias
7455 for another (such as lmenu.el set it up), see if the original
7456 command name has equivalent keys. Otherwise look up the
7457 specified command itself. We don't try both, because that
7458 makes lmenu menus slow. */
7460 && SYMBOLP (XSYMBOL (def
)->function
)
7461 && ! NILP (Fget (def
, Qmenu_alias
)))
7462 def
= XSYMBOL (def
)->function
;
7463 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7464 XSETCAR (cachelist
, tem
);
7467 XSETCDR (cachelist
, Qnil
);
7471 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7473 tem
= XCAR (cachelist
);
7477 newcache
= chkcache
;
7480 tem
= Fkey_description (tem
, Qnil
);
7483 if (STRINGP (XCAR (prefix
)))
7484 tem
= concat2 (XCAR (prefix
), tem
);
7485 if (STRINGP (XCDR (prefix
)))
7486 tem
= concat2 (tem
, XCDR (prefix
));
7488 XSETCDR (cachelist
, tem
);
7492 tem
= XCDR (cachelist
);
7493 if (newcache
&& !NILP (tem
))
7495 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7496 XSETCDR (cachelist
, tem
);
7499 /* If we only want to precompute equivalent key bindings, stop here. */
7503 /* If we have an equivalent key binding, use that. */
7504 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7506 /* Include this when menu help is implemented.
7507 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7508 if (!(NILP (tem) || STRINGP (tem)))
7510 tem = menu_item_eval_property (tem);
7513 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7517 /* Handle radio buttons or toggle boxes. */
7518 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7520 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7521 = menu_item_eval_property (tem
);
7528 /***********************************************************************
7530 ***********************************************************************/
7532 /* A vector holding tool bar items while they are parsed in function
7533 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7536 static Lisp_Object tool_bar_items_vector
;
7538 /* A vector holding the result of parse_tool_bar_item. Layout is like
7539 the one for a single item in tool_bar_items_vector. */
7541 static Lisp_Object tool_bar_item_properties
;
7543 /* Next free index in tool_bar_items_vector. */
7545 static int ntool_bar_items
;
7547 /* The symbols `tool-bar', and `:image'. */
7549 extern Lisp_Object Qtool_bar
;
7550 Lisp_Object QCimage
;
7552 /* Function prototypes. */
7554 static void init_tool_bar_items
P_ ((Lisp_Object
));
7555 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7556 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7557 static void append_tool_bar_item
P_ ((void));
7560 /* Return a vector of tool bar items for keymaps currently in effect.
7561 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7562 tool bar items found. */
7565 tool_bar_items (reuse
, nitems
)
7576 /* In order to build the menus, we need to call the keymap
7577 accessors. They all call QUIT. But this function is called
7578 during redisplay, during which a quit is fatal. So inhibit
7579 quitting while building the menus. We do this instead of
7580 specbind because (1) errors will clear it anyway and (2) this
7581 avoids risk of specpdl overflow. */
7582 oquit
= Vinhibit_quit
;
7585 /* Initialize tool_bar_items_vector and protect it from GC. */
7586 init_tool_bar_items (reuse
);
7588 /* Build list of keymaps in maps. Set nmaps to the number of maps
7591 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7592 if (!NILP (Voverriding_local_map_menu_flag
))
7594 /* Yes, use them (if non-nil) as well as the global map. */
7595 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7597 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7598 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7599 if (!NILP (Voverriding_local_map
))
7600 maps
[nmaps
++] = Voverriding_local_map
;
7604 /* No, so use major and minor mode keymaps and keymap property.
7605 Note that tool-bar bindings in the local-map and keymap
7606 properties may not work reliable, as they are only
7607 recognized when the tool-bar (or mode-line) is updated,
7608 which does not normally happen after every command. */
7611 nminor
= current_minor_maps (NULL
, &tmaps
);
7612 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7614 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7615 maps
[nmaps
++] = tem
;
7616 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7618 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7621 /* Add global keymap at the end. */
7622 maps
[nmaps
++] = current_global_map
;
7624 /* Process maps in reverse order and look up in each map the prefix
7626 for (i
= nmaps
- 1; i
>= 0; --i
)
7627 if (!NILP (maps
[i
]))
7631 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7636 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7637 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7639 Lisp_Object keydef
= XCAR (tail
);
7641 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7646 Vinhibit_quit
= oquit
;
7647 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7648 return tool_bar_items_vector
;
7652 /* Process the definition of KEY which is DEF. */
7655 process_tool_bar_item (key
, def
)
7656 Lisp_Object key
, def
;
7659 extern Lisp_Object Qundefined
;
7660 struct gcpro gcpro1
, gcpro2
;
7662 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7666 if (EQ (def
, Qundefined
))
7668 /* If a map has an explicit `undefined' as definition,
7669 discard any previously made item. */
7670 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7672 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7674 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7676 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7677 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7678 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7679 * sizeof (Lisp_Object
)));
7680 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7685 else if (parse_tool_bar_item (key
, def
))
7686 /* Append a new tool bar item to tool_bar_items_vector. Accept
7687 more than one definition for the same key. */
7688 append_tool_bar_item ();
7694 /* Parse a tool bar item specification ITEM for key KEY and return the
7695 result in tool_bar_item_properties. Value is zero if ITEM is
7698 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7700 CAPTION is the caption of the item, If it's not a string, it is
7701 evaluated to get a string.
7703 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7704 as binding are currently ignored.
7706 The following properties are recognized:
7710 FORM is evaluated and specifies whether the tool bar item is
7711 enabled or disabled.
7715 FORM is evaluated and specifies whether the tool bar item is visible.
7717 - `:filter FUNCTION'
7719 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7720 result is stored as the new binding.
7722 - `:button (TYPE SELECTED)'
7724 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7725 and specifies whether the button is selected (pressed) or not.
7729 IMAGES is either a single image specification or a vector of four
7730 image specifications. See enum tool_bar_item_images.
7732 - `:help HELP-STRING'.
7734 Gives a help string to display for the tool bar item. */
7737 parse_tool_bar_item (key
, item
)
7738 Lisp_Object key
, item
;
7740 /* Access slot with index IDX of vector tool_bar_item_properties. */
7741 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7743 Lisp_Object filter
= Qnil
;
7744 Lisp_Object caption
;
7747 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7748 Rule out items that aren't lists, don't start with
7749 `menu-item' or whose rest following `tool-bar-item' is not a
7752 || !EQ (XCAR (item
), Qmenu_item
)
7753 || (item
= XCDR (item
),
7757 /* Create tool_bar_item_properties vector if necessary. Reset it to
7759 if (VECTORP (tool_bar_item_properties
))
7761 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7765 tool_bar_item_properties
7766 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7769 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7770 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7772 /* Get the caption of the item. If the caption is not a string,
7773 evaluate it to get a string. If we don't get a string, skip this
7775 caption
= XCAR (item
);
7776 if (!STRINGP (caption
))
7778 caption
= menu_item_eval_property (caption
);
7779 if (!STRINGP (caption
))
7782 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7784 /* Give up if rest following the caption is not a list. */
7789 /* Store the binding. */
7790 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7793 /* Ignore cached key binding, if any. */
7794 if (CONSP (item
) && CONSP (XCAR (item
)))
7797 /* Process the rest of the properties. */
7798 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7800 Lisp_Object key
, value
;
7803 value
= XCAR (XCDR (item
));
7805 if (EQ (key
, QCenable
))
7806 /* `:enable FORM'. */
7807 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7808 else if (EQ (key
, QCvisible
))
7810 /* `:visible FORM'. If got a visible property and that
7811 evaluates to nil then ignore this item. */
7812 if (NILP (menu_item_eval_property (value
)))
7815 else if (EQ (key
, QChelp
))
7816 /* `:help HELP-STRING'. */
7817 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7818 else if (EQ (key
, QCfilter
))
7819 /* ':filter FORM'. */
7821 else if (EQ (key
, QCbutton
) && CONSP (value
))
7823 /* `:button (TYPE . SELECTED)'. */
7824 Lisp_Object type
, selected
;
7826 type
= XCAR (value
);
7827 selected
= XCDR (value
);
7828 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7830 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7831 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7834 else if (EQ (key
, QCimage
)
7836 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7837 /* Value is either a single image specification or a vector
7838 of 4 such specifications for the different button states. */
7839 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7842 /* If got a filter apply it on binding. */
7844 PROP (TOOL_BAR_ITEM_BINDING
)
7845 = menu_item_eval_property (list2 (filter
,
7847 PROP (TOOL_BAR_ITEM_BINDING
))));
7849 /* See if the binding is a keymap. Give up if it is. */
7850 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7853 /* Enable or disable selection of item. */
7854 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7855 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7856 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7858 /* Handle radio buttons or toggle boxes. */
7859 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7860 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7861 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7869 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7870 that can be reused. */
7873 init_tool_bar_items (reuse
)
7876 if (VECTORP (reuse
))
7877 tool_bar_items_vector
= reuse
;
7879 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7880 ntool_bar_items
= 0;
7884 /* Append parsed tool bar item properties from
7885 tool_bar_item_properties */
7888 append_tool_bar_item ()
7890 Lisp_Object
*to
, *from
;
7892 /* Enlarge tool_bar_items_vector if necessary. */
7893 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7894 >= XVECTOR (tool_bar_items_vector
)->size
)
7896 Lisp_Object new_vector
;
7897 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7899 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7900 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7901 XVECTOR (new_vector
)->contents
,
7902 old_size
* sizeof (Lisp_Object
));
7903 tool_bar_items_vector
= new_vector
;
7906 /* Append entries from tool_bar_item_properties to the end of
7907 tool_bar_items_vector. */
7908 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7909 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7910 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7911 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7918 /* Read a character using menus based on maps in the array MAPS.
7919 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7920 Return t if we displayed a menu but the user rejected it.
7922 PREV_EVENT is the previous input event, or nil if we are reading
7923 the first event of a key sequence.
7925 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7926 if we used a mouse menu to read the input, or zero otherwise. If
7927 USED_MOUSE_MENU is null, we don't dereference it.
7929 The prompting is done based on the prompt-string of the map
7930 and the strings associated with various map elements.
7932 This can be done with X menus or with menus put in the minibuf.
7933 These are done in different ways, depending on how the input will be read.
7934 Menus using X are done after auto-saving in read-char, getting the input
7935 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7936 and do auto-saving in the inner call of read_char. */
7939 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7942 Lisp_Object prev_event
;
7943 int *used_mouse_menu
;
7946 register Lisp_Object name
= Qnil
;
7948 if (used_mouse_menu
)
7949 *used_mouse_menu
= 0;
7951 /* Use local over global Menu maps */
7953 if (! menu_prompting
)
7956 /* Optionally disregard all but the global map. */
7957 if (inhibit_local_menu_bar_menus
)
7959 maps
+= (nmaps
- 1);
7963 /* Get the menu name from the first map that has one (a prompt string). */
7964 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7966 name
= Fkeymap_prompt (maps
[mapno
]);
7971 /* If we don't have any menus, just read a character normally. */
7972 if (!STRINGP (name
))
7976 /* If we got to this point via a mouse click,
7977 use a real menu for mouse selection. */
7978 if (EVENT_HAS_PARAMETERS (prev_event
)
7979 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7980 && !EQ (XCAR (prev_event
), Qtool_bar
))
7982 /* Display the menu and get the selection. */
7983 Lisp_Object
*realmaps
7984 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
7988 /* Use the maps that are not nil. */
7989 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7990 if (!NILP (maps
[mapno
]))
7991 realmaps
[nmaps1
++] = maps
[mapno
];
7993 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
7998 record_menu_key (XCAR (value
));
8000 /* If we got multiple events, unread all but
8002 There is no way to prevent those unread events
8003 from showing up later in last_nonmenu_event.
8004 So turn symbol and integer events into lists,
8005 to indicate that they came from a mouse menu,
8006 so that when present in last_nonmenu_event
8007 they won't confuse things. */
8008 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8010 record_menu_key (XCAR (tem
));
8011 if (SYMBOLP (XCAR (tem
))
8012 || INTEGERP (XCAR (tem
)))
8013 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8016 /* If we got more than one event, put all but the first
8017 onto this list to be read later.
8018 Return just the first event now. */
8019 Vunread_command_events
8020 = nconc2 (XCDR (value
), Vunread_command_events
);
8021 value
= XCAR (value
);
8023 else if (NILP (value
))
8025 if (used_mouse_menu
)
8026 *used_mouse_menu
= 1;
8029 #endif /* HAVE_MENUS */
8033 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8034 We make this bigger when necessary, and never free it. */
8035 static char *read_char_minibuf_menu_text
;
8036 /* Size of that buffer. */
8037 static int read_char_minibuf_menu_width
;
8040 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8046 register Lisp_Object name
;
8048 /* FIXME: Use the minibuffer's frame width. */
8049 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8052 Lisp_Object rest
, vector
;
8058 if (! menu_prompting
)
8061 /* Make sure we have a big enough buffer for the menu text. */
8062 if (read_char_minibuf_menu_text
== 0)
8064 read_char_minibuf_menu_width
= width
+ 4;
8065 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8067 else if (width
+ 4 > read_char_minibuf_menu_width
)
8069 read_char_minibuf_menu_width
= width
+ 4;
8070 read_char_minibuf_menu_text
8071 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8073 menu
= read_char_minibuf_menu_text
;
8075 /* Get the menu name from the first map that has one (a prompt string). */
8076 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8078 name
= Fkeymap_prompt (maps
[mapno
]);
8083 /* If we don't have any menus, just read a character normally. */
8084 if (!STRINGP (name
))
8087 /* Prompt string always starts with map's prompt, and a space. */
8088 strcpy (menu
, SDATA (name
));
8089 nlength
= SBYTES (name
);
8090 menu
[nlength
++] = ':';
8091 menu
[nlength
++] = ' ';
8094 /* Start prompting at start of first map. */
8098 /* Present the documented bindings, a line at a time. */
8105 Lisp_Object orig_defn_macro
;
8107 /* Loop over elements of map. */
8112 /* If reached end of map, start at beginning of next map. */
8116 /* At end of last map, wrap around to first map if just starting,
8117 or end this line if already have something on it. */
8121 if (notfirst
|| nobindings
) break;
8126 /* Look at the next element of the map. */
8128 elt
= XVECTOR (vector
)->contents
[idx
];
8130 elt
= Fcar_safe (rest
);
8132 if (idx
< 0 && VECTORP (elt
))
8134 /* If we found a dense table in the keymap,
8135 advanced past it, but start scanning its contents. */
8136 rest
= Fcdr_safe (rest
);
8142 /* An ordinary element. */
8143 Lisp_Object event
, tem
;
8147 event
= Fcar_safe (elt
); /* alist */
8148 elt
= Fcdr_safe (elt
);
8152 XSETINT (event
, idx
); /* vector */
8155 /* Ignore the element if it has no prompt string. */
8156 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8158 /* 1 if the char to type matches the string. */
8160 Lisp_Object upcased_event
, downcased_event
;
8161 Lisp_Object desc
= Qnil
;
8163 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8165 upcased_event
= Fupcase (event
);
8166 downcased_event
= Fdowncase (event
);
8167 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8168 || XINT (downcased_event
) == SREF (s
, 0));
8170 desc
= Fsingle_key_description (event
, Qnil
);
8172 #if 0 /* It is redundant to list the equivalent key bindings because
8173 the prefix is what the user has already typed. */
8175 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8177 /* Insert equivalent keybinding. */
8178 s
= concat2 (s
, tem
);
8181 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8182 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8184 /* Insert button prefix. */
8185 Lisp_Object selected
8186 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8187 if (EQ (tem
, QCradio
))
8188 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8190 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8191 s
= concat2 (tem
, s
);
8195 /* If we have room for the prompt string, add it to this line.
8196 If this is the first on the line, always add it. */
8197 if ((SCHARS (s
) + i
+ 2
8198 + (char_matches
? 0 : SCHARS (desc
) + 3))
8204 /* Punctuate between strings. */
8207 strcpy (menu
+ i
, ", ");
8213 /* If the char to type doesn't match the string's
8214 first char, explicitly show what char to type. */
8217 /* Add as much of string as fits. */
8218 thiswidth
= SCHARS (desc
);
8219 if (thiswidth
+ i
> width
)
8220 thiswidth
= width
- i
;
8221 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8223 strcpy (menu
+ i
, " = ");
8227 /* Add as much of string as fits. */
8228 thiswidth
= SCHARS (s
);
8229 if (thiswidth
+ i
> width
)
8230 thiswidth
= width
- i
;
8231 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8237 /* If this element does not fit, end the line now,
8238 and save the element for the next line. */
8239 strcpy (menu
+ i
, "...");
8244 /* Move past this element. */
8245 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8246 /* Handle reaching end of dense table. */
8251 rest
= Fcdr_safe (rest
);
8255 /* Prompt with that and read response. */
8256 message2_nolog (menu
, strlen (menu
),
8257 ! NILP (current_buffer
->enable_multibyte_characters
));
8259 /* Make believe its not a keyboard macro in case the help char
8260 is pressed. Help characters are not recorded because menu prompting
8261 is not used on replay.
8263 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8264 current_kboard
->defining_kbd_macro
= Qnil
;
8266 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8267 while (BUFFERP (obj
));
8268 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8270 if (!INTEGERP (obj
))
8275 if (! EQ (obj
, menu_prompt_more_char
)
8276 && (!INTEGERP (menu_prompt_more_char
)
8277 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8279 if (!NILP (current_kboard
->defining_kbd_macro
))
8280 store_kbd_macro_char (obj
);
8283 /* Help char - go round again */
8287 /* Reading key sequences. */
8289 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8290 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8291 keymap, or nil otherwise. Return the index of the first keymap in
8292 which KEY has any binding, or NMAPS if no map has a binding.
8294 If KEY is a meta ASCII character, treat it like meta-prefix-char
8295 followed by the corresponding non-meta character. Keymaps in
8296 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8299 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8302 NEXT may be the same array as CURRENT. */
8305 follow_key (key
, nmaps
, current
, defs
, next
)
8307 Lisp_Object
*current
, *defs
, *next
;
8310 int i
, first_binding
;
8312 first_binding
= nmaps
;
8313 for (i
= nmaps
- 1; i
>= 0; i
--)
8315 if (! NILP (current
[i
]))
8317 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8318 if (! NILP (defs
[i
]))
8325 /* Given the set of bindings we've found, produce the next set of maps. */
8326 if (first_binding
< nmaps
)
8327 for (i
= 0; i
< nmaps
; i
++)
8328 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8330 return first_binding
;
8333 /* Structure used to keep track of partial application of key remapping
8334 such as Vfunction_key_map and Vkey_translation_map. */
8335 typedef struct keyremap
8337 Lisp_Object map
, parent
;
8341 /* Lookup KEY in MAP.
8342 MAP is a keymap mapping keys to key vectors or functions.
8343 If the mapping is a function and DO_FUNCTION is non-zero, then
8344 the function is called with PROMPT as parameter and its return
8345 value is used as the return value of this function (after checking
8346 that it is indeed a vector). */
8349 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8350 Lisp_Object map
, key
, prompt
;
8355 next
= access_keymap (map
, key
, 1, 0, 1);
8357 /* Handle symbol with autoload definition. */
8358 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8359 && CONSP (XSYMBOL (next
)->function
)
8360 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8361 do_autoload (XSYMBOL (next
)->function
, next
);
8363 /* Handle a symbol whose function definition is a keymap
8365 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8366 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8367 || KEYMAPP (XSYMBOL (next
)->function
)))
8368 next
= XSYMBOL (next
)->function
;
8370 /* If the keymap gives a function, not an
8371 array, then call the function with one arg and use
8372 its value instead. */
8373 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8378 next
= call1 (next
, prompt
);
8379 /* If the function returned something invalid,
8380 barf--don't ignore it.
8381 (To ignore it safely, we would need to gcpro a bunch of
8382 other variables.) */
8383 if (! (VECTORP (next
) || STRINGP (next
)))
8384 error ("Function %s returns invalid key sequence", tem
);
8389 /* Do one step of the key remapping used for function-key-map and
8390 key-translation-map:
8391 KEYBUF is the buffer holding the input events.
8392 BUFSIZE is its maximum size.
8393 FKEY is a pointer to the keyremap structure to use.
8394 INPUT is the index of the last element in KEYBUF.
8395 DOIT if non-zero says that the remapping can actually take place.
8396 DIFF is used to return the number of keys added/removed by the remapping.
8397 PARENT is the root of the keymap.
8398 PROMPT is the prompt to use if the remapping happens through a function.
8399 The return value is non-zero if the remapping actually took place. */
8402 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8403 Lisp_Object
*keybuf
, prompt
;
8405 int input
, doit
, *diff
, bufsize
;
8407 Lisp_Object next
, key
;
8409 key
= keybuf
[fkey
->end
++];
8410 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8412 /* If keybuf[fkey->start..fkey->end] is bound in the
8413 map and we're in a position to do the key remapping, replace it with
8414 the binding and restart with fkey->start at the end. */
8415 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8417 int len
= XFASTINT (Flength (next
));
8420 *diff
= len
- (fkey
->end
- fkey
->start
);
8422 if (input
+ *diff
>= bufsize
)
8423 error ("Key sequence too long");
8425 /* Shift the keys that follow fkey->end. */
8427 for (i
= fkey
->end
; i
< input
; i
++)
8428 keybuf
[i
+ *diff
] = keybuf
[i
];
8430 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8431 keybuf
[i
+ *diff
] = keybuf
[i
];
8432 /* Overwrite the old keys with the new ones. */
8433 for (i
= 0; i
< len
; i
++)
8434 keybuf
[fkey
->start
+ i
]
8435 = Faref (next
, make_number (i
));
8437 fkey
->start
= fkey
->end
+= *diff
;
8438 fkey
->map
= fkey
->parent
;
8443 fkey
->map
= get_keymap (next
, 0, 1);
8445 /* If we no longer have a bound suffix, try a new position for
8447 if (!CONSP (fkey
->map
))
8449 fkey
->end
= ++fkey
->start
;
8450 fkey
->map
= fkey
->parent
;
8455 /* Read a sequence of keys that ends with a non prefix character,
8456 storing it in KEYBUF, a buffer of size BUFSIZE.
8458 Return the length of the key sequence stored.
8459 Return -1 if the user rejected a command menu.
8461 Echo starting immediately unless `prompt' is 0.
8463 Where a key sequence ends depends on the currently active keymaps.
8464 These include any minor mode keymaps active in the current buffer,
8465 the current buffer's local map, and the global map.
8467 If a key sequence has no other bindings, we check Vfunction_key_map
8468 to see if some trailing subsequence might be the beginning of a
8469 function key's sequence. If so, we try to read the whole function
8470 key, and substitute its symbolic name into the key sequence.
8472 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8473 `double-' events into similar click events, if that would make them
8474 bound. We try to turn `triple-' events first into `double-' events,
8477 If we get a mouse click in a mode line, vertical divider, or other
8478 non-text area, we treat the click as if it were prefixed by the
8479 symbol denoting that area - `mode-line', `vertical-line', or
8482 If the sequence starts with a mouse click, we read the key sequence
8483 with respect to the buffer clicked on, not the current buffer.
8485 If the user switches frames in the midst of a key sequence, we put
8486 off the switch-frame event until later; the next call to
8487 read_char will return it.
8489 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8490 from the selected window's buffer. */
8493 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8494 can_return_switch_frame
, fix_current_buffer
)
8495 Lisp_Object
*keybuf
;
8498 int dont_downcase_last
;
8499 int can_return_switch_frame
;
8500 int fix_current_buffer
;
8502 volatile Lisp_Object from_string
;
8503 volatile int count
= SPECPDL_INDEX ();
8505 /* How many keys there are in the current key sequence. */
8508 /* The length of the echo buffer when we started reading, and
8509 the length of this_command_keys when we started reading. */
8510 volatile int echo_start
;
8511 volatile int keys_start
;
8513 /* The number of keymaps we're scanning right now, and the number of
8514 keymaps we have allocated space for. */
8516 volatile int nmaps_allocated
= 0;
8518 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8519 the current keymaps. */
8520 Lisp_Object
*volatile defs
= NULL
;
8522 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8523 in the current keymaps, or nil where it is not a prefix. */
8524 Lisp_Object
*volatile submaps
= NULL
;
8526 /* The local map to start out with at start of key sequence. */
8527 volatile Lisp_Object orig_local_map
;
8529 /* The map from the `keymap' property to start out with at start of
8531 volatile Lisp_Object orig_keymap
;
8533 /* 1 if we have already considered switching to the local-map property
8534 of the place where a mouse click occurred. */
8535 volatile int localized_local_map
= 0;
8537 /* The index in defs[] of the first keymap that has a binding for
8538 this key sequence. In other words, the lowest i such that
8539 defs[i] is non-nil. */
8540 volatile int first_binding
;
8541 /* Index of the first key that has no binding.
8542 It is useless to try fkey.start larger than that. */
8543 volatile int first_unbound
;
8545 /* If t < mock_input, then KEYBUF[t] should be read as the next
8548 We use this to recover after recognizing a function key. Once we
8549 realize that a suffix of the current key sequence is actually a
8550 function key's escape sequence, we replace the suffix with the
8551 function key's binding from Vfunction_key_map. Now keybuf
8552 contains a new and different key sequence, so the echo area,
8553 this_command_keys, and the submaps and defs arrays are wrong. In
8554 this situation, we set mock_input to t, set t to 0, and jump to
8555 restart_sequence; the loop will read keys from keybuf up until
8556 mock_input, thus rebuilding the state; and then it will resume
8557 reading characters from the keyboard. */
8558 volatile int mock_input
= 0;
8560 /* If the sequence is unbound in submaps[], then
8561 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8562 and fkey.map is its binding.
8564 These might be > t, indicating that all function key scanning
8565 should hold off until t reaches them. We do this when we've just
8566 recognized a function key, to avoid searching for the function
8567 key's again in Vfunction_key_map. */
8568 volatile keyremap fkey
;
8570 /* Likewise, for key_translation_map. */
8571 volatile keyremap keytran
;
8573 /* If we receive a `switch-frame' or `select-window' event in the middle of
8574 a key sequence, we put it off for later.
8575 While we're reading, we keep the event here. */
8576 volatile Lisp_Object delayed_switch_frame
;
8578 /* See the comment below... */
8579 #if defined (GOBBLE_FIRST_EVENT)
8580 Lisp_Object first_event
;
8583 volatile Lisp_Object original_uppercase
;
8584 volatile int original_uppercase_position
= -1;
8586 /* Gets around Microsoft compiler limitations. */
8589 struct buffer
*starting_buffer
;
8591 /* List of events for which a fake prefix key has been generated. */
8592 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8594 #if defined (GOBBLE_FIRST_EVENT)
8598 struct gcpro gcpro1
;
8600 GCPRO1 (fake_prefixed_keys
);
8601 raw_keybuf_count
= 0;
8603 last_nonmenu_event
= Qnil
;
8605 delayed_switch_frame
= Qnil
;
8606 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8607 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8608 /* If there is no translation-map, turn off scanning. */
8609 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8610 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8615 echo_prompt (prompt
);
8616 else if (cursor_in_echo_area
8617 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8618 && NILP (Fzerop (Vecho_keystrokes
)))
8619 /* This doesn't put in a dash if the echo buffer is empty, so
8620 you don't always see a dash hanging out in the minibuffer. */
8624 /* Record the initial state of the echo area and this_command_keys;
8625 we will need to restore them if we replay a key sequence. */
8627 echo_start
= echo_length ();
8628 keys_start
= this_command_key_count
;
8629 this_single_command_key_start
= keys_start
;
8631 #if defined (GOBBLE_FIRST_EVENT)
8632 /* This doesn't quite work, because some of the things that read_char
8633 does cannot safely be bypassed. It seems too risky to try to make
8636 /* Read the first char of the sequence specially, before setting
8637 up any keymaps, in case a filter runs and switches buffers on us. */
8638 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8640 #endif /* GOBBLE_FIRST_EVENT */
8642 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8643 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8646 /* We jump here when the key sequence has been thoroughly changed, and
8647 we need to rescan it starting from the beginning. When we jump here,
8648 keybuf[0..mock_input] holds the sequence we should reread. */
8651 starting_buffer
= current_buffer
;
8652 first_unbound
= bufsize
+ 1;
8654 /* Build our list of keymaps.
8655 If we recognize a function key and replace its escape sequence in
8656 keybuf with its symbol, or if the sequence starts with a mouse
8657 click and we need to switch buffers, we jump back here to rebuild
8658 the initial keymaps from the current buffer. */
8661 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8662 || !NILP (Voverriding_local_map
))
8664 if (3 > nmaps_allocated
)
8666 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8667 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8668 nmaps_allocated
= 3;
8670 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8671 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8672 if (!NILP (Voverriding_local_map
))
8673 submaps
[nmaps
++] = Voverriding_local_map
;
8681 nminor
= current_minor_maps (0, &maps
);
8682 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8684 if (total
> nmaps_allocated
)
8686 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8687 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8688 nmaps_allocated
= total
;
8691 if (!NILP (orig_keymap
))
8692 submaps
[nmaps
++] = orig_keymap
;
8694 bcopy (maps
, (void *) (submaps
+ nmaps
),
8695 nminor
* sizeof (submaps
[0]));
8699 submaps
[nmaps
++] = orig_local_map
;
8701 submaps
[nmaps
++] = current_global_map
;
8703 /* Find an accurate initial value for first_binding. */
8704 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8705 if (! NILP (submaps
[first_binding
]))
8708 /* Start from the beginning in keybuf. */
8711 /* These are no-ops the first time through, but if we restart, they
8712 revert the echo area and this_command_keys to their original state. */
8713 this_command_key_count
= keys_start
;
8714 if (INTERACTIVE
&& t
< mock_input
)
8715 echo_truncate (echo_start
);
8717 /* If the best binding for the current key sequence is a keymap, or
8718 we may be looking at a function key's escape sequence, keep on
8720 while (first_binding
< nmaps
8721 /* Keep reading as long as there's a prefix binding. */
8722 ? !NILP (submaps
[first_binding
])
8723 /* Don't return in the middle of a possible function key sequence,
8724 if the only bindings we found were via case conversion.
8725 Thus, if ESC O a has a function-key-map translation
8726 and ESC o has a binding, don't return after ESC O,
8727 so that we can translate ESC O plus the next character. */
8728 : (fkey
.start
< t
|| keytran
.start
< t
))
8731 int used_mouse_menu
= 0;
8733 /* Where the last real key started. If we need to throw away a
8734 key that has expanded into more than one element of keybuf
8735 (say, a mouse click on the mode line which is being treated
8736 as [mode-line (mouse-...)], then we backtrack to this point
8738 volatile int last_real_key_start
;
8740 /* These variables are analogous to echo_start and keys_start;
8741 while those allow us to restart the entire key sequence,
8742 echo_local_start and keys_local_start allow us to throw away
8744 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8746 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8747 eassert (fkey
.start
<= fkey
.end
);
8748 eassert (keytran
.start
<= keytran
.end
);
8749 /* key-translation-map is applied *after* function-key-map. */
8750 eassert (keytran
.end
<= fkey
.start
);
8752 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8753 { /* The prefix upto first_unbound has no binding and has
8754 no translation left to do either, so we know it's unbound.
8755 If we don't stop now, we risk staying here indefinitely
8756 (if the user keeps entering fkey or keytran prefixes
8757 like C-c ESC ESC ESC ESC ...) */
8759 for (i
= first_unbound
+ 1; i
< t
; i
++)
8760 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8761 mock_input
= t
- first_unbound
- 1;
8762 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8763 fkey
.map
= fkey
.parent
;
8764 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8765 keytran
.map
= keytran
.parent
;
8766 goto replay_sequence
;
8770 error ("Key sequence too long");
8773 echo_local_start
= echo_length ();
8774 keys_local_start
= this_command_key_count
;
8775 local_first_binding
= first_binding
;
8778 /* These are no-ops, unless we throw away a keystroke below and
8779 jumped back up to replay_key; in that case, these restore the
8780 variables to their original state, allowing us to replay the
8782 if (INTERACTIVE
&& t
< mock_input
)
8783 echo_truncate (echo_local_start
);
8784 this_command_key_count
= keys_local_start
;
8785 first_binding
= local_first_binding
;
8787 /* By default, assume each event is "real". */
8788 last_real_key_start
= t
;
8790 /* Does mock_input indicate that we are re-reading a key sequence? */
8794 add_command_key (key
);
8795 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8796 && NILP (Fzerop (Vecho_keystrokes
)))
8800 /* If not, we should actually read a character. */
8805 KBOARD
*interrupted_kboard
= current_kboard
;
8806 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8807 if (setjmp (wrong_kboard_jmpbuf
))
8809 if (!NILP (delayed_switch_frame
))
8811 interrupted_kboard
->kbd_queue
8812 = Fcons (delayed_switch_frame
,
8813 interrupted_kboard
->kbd_queue
);
8814 delayed_switch_frame
= Qnil
;
8817 interrupted_kboard
->kbd_queue
8818 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8820 /* If the side queue is non-empty, ensure it begins with a
8821 switch-frame, so we'll replay it in the right context. */
8822 if (CONSP (interrupted_kboard
->kbd_queue
)
8823 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8824 !(EVENT_HAS_PARAMETERS (key
)
8825 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8829 XSETFRAME (frame
, interrupted_frame
);
8830 interrupted_kboard
->kbd_queue
8831 = Fcons (make_lispy_switch_frame (frame
),
8832 interrupted_kboard
->kbd_queue
);
8835 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8836 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8837 goto replay_sequence
;
8840 key
= read_char (NILP (prompt
), nmaps
,
8841 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8845 /* read_char returns t when it shows a menu and the user rejects it.
8849 unbind_to (count
, Qnil
);
8854 /* read_char returns -1 at the end of a macro.
8855 Emacs 18 handles this by returning immediately with a
8856 zero, so that's what we'll do. */
8857 if (INTEGERP (key
) && XINT (key
) == -1)
8860 /* The Microsoft C compiler can't handle the goto that
8866 /* If the current buffer has been changed from under us, the
8867 keymap may have changed, so replay the sequence. */
8870 timer_resume_idle ();
8873 /* Reset the current buffer from the selected window
8874 in case something changed the former and not the latter.
8875 This is to be more consistent with the behavior
8876 of the command_loop_1. */
8877 if (fix_current_buffer
)
8879 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8881 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8882 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8885 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8886 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8887 goto replay_sequence
;
8890 /* If we have a quit that was typed in another frame, and
8891 quit_throw_to_read_char switched buffers,
8892 replay to get the right keymap. */
8894 && XINT (key
) == quit_char
8895 && current_buffer
!= starting_buffer
)
8898 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8902 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8903 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8904 goto replay_sequence
;
8909 if (EVENT_HAS_PARAMETERS (key
)
8910 /* Either a `switch-frame' or a `select-window' event. */
8911 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8913 /* If we're at the beginning of a key sequence, and the caller
8914 says it's okay, go ahead and return this event. If we're
8915 in the midst of a key sequence, delay it until the end. */
8916 if (t
> 0 || !can_return_switch_frame
)
8918 delayed_switch_frame
= key
;
8924 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8927 /* Clicks in non-text areas get prefixed by the symbol
8928 in their CHAR-ADDRESS field. For example, a click on
8929 the mode line is prefixed by the symbol `mode-line'.
8931 Furthermore, key sequences beginning with mouse clicks
8932 are read using the keymaps of the buffer clicked on, not
8933 the current buffer. So we may have to switch the buffer
8936 When we turn one event into two events, we must make sure
8937 that neither of the two looks like the original--so that,
8938 if we replay the events, they won't be expanded again.
8939 If not for this, such reexpansion could happen either here
8940 or when user programs play with this-command-keys. */
8941 if (EVENT_HAS_PARAMETERS (key
))
8946 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8947 if (EQ (kind
, Qmouse_click
))
8949 Lisp_Object window
, posn
;
8951 window
= POSN_WINDOW (EVENT_START (key
));
8952 posn
= POSN_POSN (EVENT_START (key
));
8955 || (!NILP (fake_prefixed_keys
)
8956 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8958 /* We're looking a second time at an event for which
8959 we generated a fake prefix key. Set
8960 last_real_key_start appropriately. */
8962 last_real_key_start
= t
- 1;
8965 /* Key sequences beginning with mouse clicks are
8966 read using the keymaps in the buffer clicked on,
8967 not the current buffer. If we're at the
8968 beginning of a key sequence, switch buffers. */
8969 if (last_real_key_start
== 0
8971 && BUFFERP (XWINDOW (window
)->buffer
)
8972 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8974 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8978 /* Arrange to go back to the original buffer once we're
8979 done reading the key sequence. Note that we can't
8980 use save_excursion_{save,restore} here, because they
8981 save point as well as the current buffer; we don't
8982 want to save point, because redisplay may change it,
8983 to accommodate a Fset_window_start or something. We
8984 don't want to do this at the top of the function,
8985 because we may get input from a subprocess which
8986 wants to change the selected window and stuff (say,
8988 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
8990 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8992 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
8993 orig_local_map
= get_local_map (PT
, current_buffer
,
8995 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8996 goto replay_sequence
;
8999 /* For a mouse click, get the local text-property keymap
9000 of the place clicked on, rather than point. */
9001 if (last_real_key_start
== 0
9002 && CONSP (XCDR (key
))
9003 && ! localized_local_map
)
9005 Lisp_Object map_here
, start
, pos
;
9007 localized_local_map
= 1;
9008 start
= EVENT_START (key
);
9010 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9012 pos
= POSN_BUFFER_POSN (start
);
9014 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9016 map_here
= get_local_map (XINT (pos
),
9017 current_buffer
, Qlocal_map
);
9018 if (!EQ (map_here
, orig_local_map
))
9020 orig_local_map
= map_here
;
9024 goto replay_sequence
;
9026 map_here
= get_local_map (XINT (pos
),
9027 current_buffer
, Qkeymap
);
9028 if (!EQ (map_here
, orig_keymap
))
9030 orig_keymap
= map_here
;
9034 goto replay_sequence
;
9040 /* Expand mode-line and scroll-bar events into two events:
9041 use posn as a fake prefix key. */
9043 && (NILP (fake_prefixed_keys
)
9044 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9046 if (t
+ 1 >= bufsize
)
9047 error ("Key sequence too long");
9050 keybuf
[t
+ 1] = key
;
9053 /* Record that a fake prefix key has been generated
9054 for KEY. Don't modify the event; this would
9055 prevent proper action when the event is pushed
9056 back into unread-command-events. */
9057 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9059 /* If on a mode line string with a local keymap,
9060 reconsider the key sequence with that keymap. */
9061 if (string
= POSN_STRING (EVENT_START (key
)),
9062 (CONSP (string
) && STRINGP (XCAR (string
))))
9064 Lisp_Object pos
, map
, map2
;
9066 pos
= XCDR (string
);
9067 string
= XCAR (string
);
9069 && XINT (pos
) < SCHARS (string
))
9071 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9073 orig_local_map
= map
;
9074 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9077 if (!NILP (map
) || !NILP (map2
))
9078 goto replay_sequence
;
9084 else if (NILP (from_string
)
9085 && (string
= POSN_STRING (EVENT_START (key
)),
9086 (CONSP (string
) && STRINGP (XCAR (string
)))))
9088 /* For a click on a string, i.e. overlay string or a
9089 string displayed via the `display' property,
9090 consider `local-map' and `keymap' properties of
9092 Lisp_Object pos
, map
, map2
;
9094 pos
= XCDR (string
);
9095 string
= XCAR (string
);
9097 && XINT (pos
) < SCHARS (string
))
9099 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9101 orig_local_map
= map
;
9102 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9106 if (!NILP (map
) || !NILP (map2
))
9108 from_string
= string
;
9109 goto replay_sequence
;
9114 else if (CONSP (XCDR (key
))
9115 && CONSP (EVENT_START (key
))
9116 && CONSP (XCDR (EVENT_START (key
))))
9120 posn
= POSN_POSN (EVENT_START (key
));
9121 /* Handle menu-bar events:
9122 insert the dummy prefix event `menu-bar'. */
9123 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9125 if (t
+ 1 >= bufsize
)
9126 error ("Key sequence too long");
9130 /* Zap the position in key, so we know that we've
9131 expanded it, and don't try to do so again. */
9132 POSN_SET_POSN (EVENT_START (key
),
9133 Fcons (posn
, Qnil
));
9136 goto replay_sequence
;
9138 else if (CONSP (posn
))
9140 /* We're looking at the second event of a
9141 sequence which we expanded before. Set
9142 last_real_key_start appropriately. */
9143 if (last_real_key_start
== t
&& t
> 0)
9144 last_real_key_start
= t
- 1;
9149 /* We have finally decided that KEY is something we might want
9151 first_binding
= (follow_key (key
,
9152 nmaps
- first_binding
,
9153 submaps
+ first_binding
,
9154 defs
+ first_binding
,
9155 submaps
+ first_binding
)
9158 /* If KEY wasn't bound, we'll try some fallbacks. */
9159 if (first_binding
< nmaps
)
9160 /* This is needed for the following scenario:
9161 event 0: a down-event that gets dropped by calling replay_key.
9162 event 1: some normal prefix like C-h.
9163 After event 0, first_unbound is 0, after event 1 fkey.start
9164 and keytran.start are both 1, so when we see that C-h is bound,
9165 we need to update first_unbound. */
9166 first_unbound
= max (t
+ 1, first_unbound
);
9171 /* Remember the position to put an upper bound on fkey.start. */
9172 first_unbound
= min (t
, first_unbound
);
9174 head
= EVENT_HEAD (key
);
9175 if (help_char_p (head
) && t
> 0)
9177 read_key_sequence_cmd
= Vprefix_help_command
;
9179 last_nonmenu_event
= key
;
9180 /* The Microsoft C compiler can't handle the goto that
9188 Lisp_Object breakdown
;
9191 breakdown
= parse_modifiers (head
);
9192 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9193 /* Attempt to reduce an unbound mouse event to a simpler
9194 event that is bound:
9195 Drags reduce to clicks.
9196 Double-clicks reduce to clicks.
9197 Triple-clicks reduce to double-clicks, then to clicks.
9198 Down-clicks are eliminated.
9199 Double-downs reduce to downs, then are eliminated.
9200 Triple-downs reduce to double-downs, then to downs,
9201 then are eliminated. */
9202 if (modifiers
& (down_modifier
| drag_modifier
9203 | double_modifier
| triple_modifier
))
9205 while (modifiers
& (down_modifier
| drag_modifier
9206 | double_modifier
| triple_modifier
))
9208 Lisp_Object new_head
, new_click
;
9209 if (modifiers
& triple_modifier
)
9210 modifiers
^= (double_modifier
| triple_modifier
);
9211 else if (modifiers
& double_modifier
)
9212 modifiers
&= ~double_modifier
;
9213 else if (modifiers
& drag_modifier
)
9214 modifiers
&= ~drag_modifier
;
9217 /* Dispose of this `down' event by simply jumping
9218 back to replay_key, to get another event.
9220 Note that if this event came from mock input,
9221 then just jumping back to replay_key will just
9222 hand it to us again. So we have to wipe out any
9225 We could delete keybuf[t] and shift everything
9226 after that to the left by one spot, but we'd also
9227 have to fix up any variable that points into
9228 keybuf, and shifting isn't really necessary
9231 Adding prefixes for non-textual mouse clicks
9232 creates two characters of mock input, and both
9233 must be thrown away. If we're only looking at
9234 the prefix now, we can just jump back to
9235 replay_key. On the other hand, if we've already
9236 processed the prefix, and now the actual click
9237 itself is giving us trouble, then we've lost the
9238 state of the keymaps we want to backtrack to, and
9239 we need to replay the whole sequence to rebuild
9242 Beyond that, only function key expansion could
9243 create more than two keys, but that should never
9244 generate mouse events, so it's okay to zero
9245 mock_input in that case too.
9247 FIXME: The above paragraph seems just plain
9248 wrong, if you consider things like
9249 xterm-mouse-mode. -stef
9251 Isn't this just the most wonderful code ever? */
9253 /* If mock_input > t + 1, the above simplification
9254 will actually end up dropping keys on the floor.
9255 This is probably OK for now, but even
9256 if mock_input <= t + 1, we need to adjust fkey
9258 Typical case [header-line down-mouse-N]:
9259 mock_input = 2, t = 1, fkey.end = 1,
9260 last_real_key_start = 0. */
9261 if (fkey
.end
> last_real_key_start
)
9263 fkey
.end
= fkey
.start
9264 = min (last_real_key_start
, fkey
.start
);
9265 fkey
.map
= fkey
.parent
;
9266 if (keytran
.end
> last_real_key_start
)
9268 keytran
.end
= keytran
.start
9269 = min (last_real_key_start
, keytran
.start
);
9270 keytran
.map
= keytran
.parent
;
9273 if (t
== last_real_key_start
)
9280 mock_input
= last_real_key_start
;
9281 goto replay_sequence
;
9286 = apply_modifiers (modifiers
, XCAR (breakdown
));
9288 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9290 /* Look for a binding for this new key. follow_key
9291 promises that it didn't munge submaps the
9292 last time we called it, since key was unbound. */
9294 = (follow_key (new_click
,
9295 nmaps
- local_first_binding
,
9296 submaps
+ local_first_binding
,
9297 defs
+ local_first_binding
,
9298 submaps
+ local_first_binding
)
9299 + local_first_binding
);
9301 /* If that click is bound, go for it. */
9302 if (first_binding
< nmaps
)
9307 /* Otherwise, we'll leave key set to the drag event. */
9314 /* Normally, last_nonmenu_event gets the previous key we read.
9315 But when a mouse popup menu is being used,
9316 we don't update last_nonmenu_event; it continues to hold the mouse
9317 event that preceded the first level of menu. */
9318 if (!used_mouse_menu
)
9319 last_nonmenu_event
= key
;
9321 /* Record what part of this_command_keys is the current key sequence. */
9322 this_single_command_key_start
= this_command_key_count
- t
;
9324 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9325 /* There is a binding and it's not a prefix.
9326 There is thus no function-key in this sequence.
9327 Moving fkey.start is important in this case to allow keytran.start
9328 to go over the sequence before we return (since we keep the
9329 invariant that keytran.end <= fkey.start). */
9332 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9335 /* If the sequence is unbound, see if we can hang a function key
9336 off the end of it. */
9337 /* Continue scan from fkey.end until we find a bound suffix. */
9338 while (fkey
.end
< t
)
9340 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9343 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9344 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9345 max (t
, mock_input
),
9346 /* If there's a binding (i.e.
9347 first_binding >= nmaps) we don't want
9348 to apply this function-key-mapping. */
9349 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9354 mock_input
= diff
+ max (t
, mock_input
);
9355 goto replay_sequence
;
9359 /* Look for this sequence in key-translation-map.
9360 Scan from keytran.end until we find a bound suffix. */
9361 while (keytran
.end
< fkey
.start
)
9363 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9366 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9367 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9372 mock_input
= diff
+ max (t
, mock_input
);
9373 /* Adjust the function-key-map counters. */
9377 goto replay_sequence
;
9381 /* If KEY is not defined in any of the keymaps,
9382 and cannot be part of a function key or translation,
9383 and is an upper case letter
9384 use the corresponding lower-case letter instead. */
9385 if (first_binding
>= nmaps
9386 && fkey
.start
>= t
&& keytran
.start
>= t
9388 && ((((XINT (key
) & 0x3ffff)
9389 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9390 && UPPERCASEP (XINT (key
) & 0x3ffff))
9391 || (XINT (key
) & shift_modifier
)))
9393 Lisp_Object new_key
;
9395 original_uppercase
= key
;
9396 original_uppercase_position
= t
- 1;
9398 if (XINT (key
) & shift_modifier
)
9399 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9401 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9402 | (XINT (key
) & ~0x3ffff)));
9404 /* We have to do this unconditionally, regardless of whether
9405 the lower-case char is defined in the keymaps, because they
9406 might get translated through function-key-map. */
9407 keybuf
[t
- 1] = new_key
;
9408 mock_input
= max (t
, mock_input
);
9410 goto replay_sequence
;
9412 /* If KEY is not defined in any of the keymaps,
9413 and cannot be part of a function key or translation,
9414 and is a shifted function key,
9415 use the corresponding unshifted function key instead. */
9416 if (first_binding
>= nmaps
9417 && fkey
.start
>= t
&& keytran
.start
>= t
9420 Lisp_Object breakdown
;
9423 breakdown
= parse_modifiers (key
);
9424 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9425 if (modifiers
& shift_modifier
)
9427 Lisp_Object new_key
;
9429 original_uppercase
= key
;
9430 original_uppercase_position
= t
- 1;
9432 modifiers
&= ~shift_modifier
;
9433 new_key
= apply_modifiers (modifiers
,
9436 keybuf
[t
- 1] = new_key
;
9437 mock_input
= max (t
, mock_input
);
9438 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9439 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9441 goto replay_sequence
;
9447 read_key_sequence_cmd
= (first_binding
< nmaps
9448 ? defs
[first_binding
]
9451 unread_switch_frame
= delayed_switch_frame
;
9452 unbind_to (count
, Qnil
);
9454 /* Don't downcase the last character if the caller says don't.
9455 Don't downcase it if the result is undefined, either. */
9456 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9457 && t
- 1 == original_uppercase_position
)
9458 keybuf
[t
- 1] = original_uppercase
;
9460 /* Occasionally we fabricate events, perhaps by expanding something
9461 according to function-key-map, or by adding a prefix symbol to a
9462 mouse click in the scroll bar or modeline. In this cases, return
9463 the entire generated key sequence, even if we hit an unbound
9464 prefix or a definition before the end. This means that you will
9465 be able to push back the event properly, and also means that
9466 read-key-sequence will always return a logical unit.
9469 for (; t
< mock_input
; t
++)
9471 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9472 && NILP (Fzerop (Vecho_keystrokes
)))
9473 echo_char (keybuf
[t
]);
9474 add_command_key (keybuf
[t
]);
9483 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9484 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9485 The sequence is sufficient to specify a non-prefix command in the
9486 current local and global maps.
9488 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9489 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9490 as a continuation of the previous key.
9492 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9493 convert the last event to lower case. (Normally any upper case event
9494 is converted to lower case if the original event is undefined and the lower
9495 case equivalent is defined.) A non-nil value is appropriate for reading
9496 a key sequence to be defined.
9498 A C-g typed while in this function is treated like any other character,
9499 and `quit-flag' is not set.
9501 If the key sequence starts with a mouse click, then the sequence is read
9502 using the keymaps of the buffer of the window clicked in, not the buffer
9503 of the selected window as normal.
9505 `read-key-sequence' drops unbound button-down events, since you normally
9506 only care about the click or drag events which follow them. If a drag
9507 or multi-click event is unbound, but the corresponding click event would
9508 be bound, `read-key-sequence' turns the event into a click event at the
9509 drag's starting position. This means that you don't have to distinguish
9510 between click and drag, double, or triple events unless you want to.
9512 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9513 lines separating windows, and scroll bars with imaginary keys
9514 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9516 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9517 function will process a switch-frame event if the user switches frames
9518 before typing anything. If the user switches frames in the middle of a
9519 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9520 is nil, then the event will be put off until after the current key sequence.
9522 `read-key-sequence' checks `function-key-map' for function key
9523 sequences, where they wouldn't conflict with ordinary bindings. See
9524 `function-key-map' for more details.
9526 The optional fifth argument COMMAND-LOOP, if non-nil, means
9527 that this key sequence is being read by something that will
9528 read commands one after another. It should be nil if the caller
9529 will read just one key sequence. */)
9530 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9532 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9533 Lisp_Object can_return_switch_frame
, command_loop
;
9535 Lisp_Object keybuf
[30];
9537 struct gcpro gcpro1
;
9538 int count
= SPECPDL_INDEX ();
9541 CHECK_STRING (prompt
);
9544 specbind (Qinput_method_exit_on_first_char
,
9545 (NILP (command_loop
) ? Qt
: Qnil
));
9546 specbind (Qinput_method_use_echo_area
,
9547 (NILP (command_loop
) ? Qt
: Qnil
));
9549 bzero (keybuf
, sizeof keybuf
);
9551 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9553 if (NILP (continue_echo
))
9555 this_command_key_count
= 0;
9556 this_command_key_count_reset
= 0;
9557 this_single_command_key_start
= 0;
9560 #ifdef HAVE_X_WINDOWS
9561 if (display_hourglass_p
)
9562 cancel_hourglass ();
9565 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9566 prompt
, ! NILP (dont_downcase_last
),
9567 ! NILP (can_return_switch_frame
), 0);
9569 #if 0 /* The following is fine for code reading a key sequence and
9570 then proceeding with a lenghty computation, but it's not good
9571 for code reading keys in a loop, like an input method. */
9572 #ifdef HAVE_X_WINDOWS
9573 if (display_hourglass_p
)
9584 return unbind_to (count
, make_event_array (i
, keybuf
));
9587 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9588 Sread_key_sequence_vector
, 1, 5, 0,
9589 doc
: /* Like `read-key-sequence' but always return a vector. */)
9590 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9592 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9593 Lisp_Object can_return_switch_frame
, command_loop
;
9595 Lisp_Object keybuf
[30];
9597 struct gcpro gcpro1
;
9598 int count
= SPECPDL_INDEX ();
9601 CHECK_STRING (prompt
);
9604 specbind (Qinput_method_exit_on_first_char
,
9605 (NILP (command_loop
) ? Qt
: Qnil
));
9606 specbind (Qinput_method_use_echo_area
,
9607 (NILP (command_loop
) ? Qt
: Qnil
));
9609 bzero (keybuf
, sizeof keybuf
);
9611 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9613 if (NILP (continue_echo
))
9615 this_command_key_count
= 0;
9616 this_command_key_count_reset
= 0;
9617 this_single_command_key_start
= 0;
9620 #ifdef HAVE_X_WINDOWS
9621 if (display_hourglass_p
)
9622 cancel_hourglass ();
9625 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9626 prompt
, ! NILP (dont_downcase_last
),
9627 ! NILP (can_return_switch_frame
), 0);
9629 #ifdef HAVE_X_WINDOWS
9630 if (display_hourglass_p
)
9640 return unbind_to (count
, Fvector (i
, keybuf
));
9643 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9644 doc
: /* Execute CMD as an editor command.
9645 CMD must be a symbol that satisfies the `commandp' predicate.
9646 Optional second arg RECORD-FLAG non-nil
9647 means unconditionally put this command in `command-history'.
9648 Otherwise, that is done only if an arg is read using the minibuffer.
9649 The argument KEYS specifies the value to use instead of (this-command-keys)
9650 when reading the arguments; if it is nil, (this-command-keys) is used.
9651 The argument SPECIAL, if non-nil, means that this command is executing
9652 a special event, so ignore the prefix argument and don't clear it. */)
9653 (cmd
, record_flag
, keys
, special
)
9654 Lisp_Object cmd
, record_flag
, keys
, special
;
9656 register Lisp_Object final
;
9657 register Lisp_Object tem
;
9658 Lisp_Object prefixarg
;
9659 struct backtrace backtrace
;
9660 extern int debug_on_next_call
;
9662 debug_on_next_call
= 0;
9666 prefixarg
= current_kboard
->Vprefix_arg
;
9667 Vcurrent_prefix_arg
= prefixarg
;
9668 current_kboard
->Vprefix_arg
= Qnil
;
9675 tem
= Fget (cmd
, Qdisabled
);
9676 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9678 tem
= Fsymbol_value (Qdisabled_command_function
);
9680 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9686 final
= Findirect_function (cmd
);
9688 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9690 struct gcpro gcpro1
, gcpro2
;
9692 GCPRO2 (cmd
, prefixarg
);
9693 do_autoload (final
, cmd
);
9700 if (STRINGP (final
) || VECTORP (final
))
9702 /* If requested, place the macro in the command history. For
9703 other sorts of commands, call-interactively takes care of
9705 if (!NILP (record_flag
))
9708 = Fcons (Fcons (Qexecute_kbd_macro
,
9709 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9712 /* Don't keep command history around forever. */
9713 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9715 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9717 XSETCDR (tem
, Qnil
);
9721 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9724 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9726 backtrace
.next
= backtrace_list
;
9727 backtrace_list
= &backtrace
;
9728 backtrace
.function
= &Qcall_interactively
;
9729 backtrace
.args
= &cmd
;
9730 backtrace
.nargs
= 1;
9731 backtrace
.evalargs
= 0;
9732 backtrace
.debug_on_exit
= 0;
9734 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9736 backtrace_list
= backtrace
.next
;
9744 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9746 doc
: /* Read function name, then read its arguments and call it. */)
9748 Lisp_Object prefixarg
;
9750 Lisp_Object function
;
9752 int saved_last_point_position
;
9753 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9754 Lisp_Object bindings
, value
;
9755 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9756 #ifdef HAVE_X_WINDOWS
9757 /* The call to Fcompleting_read wil start and cancel the hourglass,
9758 but if the hourglass was already scheduled, this means that no
9759 hourglass will be shown for the actual M-x command itself.
9760 So we restart it if it is already scheduled. Note that checking
9761 hourglass_shown_p is not enough, normally the hourglass is not shown,
9762 just scheduled to be shown. */
9763 int hstarted
= hourglass_started ();
9766 saved_keys
= Fvector (this_command_key_count
,
9767 XVECTOR (this_command_keys
)->contents
);
9768 saved_last_point_position_buffer
= last_point_position_buffer
;
9769 saved_last_point_position
= last_point_position
;
9771 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9773 if (EQ (prefixarg
, Qminus
))
9775 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9776 strcpy (buf
, "C-u ");
9777 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9778 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9779 else if (INTEGERP (prefixarg
))
9780 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9782 /* This isn't strictly correct if execute-extended-command
9783 is bound to anything else. Perhaps it should use
9784 this_command_keys? */
9785 strcat (buf
, "M-x ");
9787 /* Prompt with buf, and then read a string, completing from and
9788 restricting to the set of all defined commands. Don't provide
9789 any initial input. Save the command read on the extended-command
9791 function
= Fcompleting_read (build_string (buf
),
9792 Vobarray
, Qcommandp
,
9793 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9796 #ifdef HAVE_X_WINDOWS
9797 if (hstarted
) start_hourglass ();
9800 if (STRINGP (function
) && SCHARS (function
) == 0)
9801 error ("No command name given");
9803 /* Set this_command_keys to the concatenation of saved_keys and
9804 function, followed by a RET. */
9809 this_command_key_count
= 0;
9810 this_command_key_count_reset
= 0;
9811 this_single_command_key_start
= 0;
9813 keys
= XVECTOR (saved_keys
)->contents
;
9814 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9815 add_command_key (keys
[i
]);
9817 for (i
= 0; i
< SCHARS (function
); i
++)
9818 add_command_key (Faref (function
, make_number (i
)));
9820 add_command_key (make_number ('\015'));
9823 last_point_position
= saved_last_point_position
;
9824 last_point_position_buffer
= saved_last_point_position_buffer
;
9828 function
= Fintern (function
, Qnil
);
9829 current_kboard
->Vprefix_arg
= prefixarg
;
9830 Vthis_command
= function
;
9831 real_this_command
= function
;
9833 /* If enabled, show which key runs this command. */
9834 if (!NILP (Vsuggest_key_bindings
)
9835 && NILP (Vexecuting_kbd_macro
)
9836 && SYMBOLP (function
))
9837 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9843 GCPRO2 (bindings
, value
);
9844 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9846 /* If the command has a key binding, print it now. */
9847 if (!NILP (bindings
)
9848 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9851 /* But first wait, and skip the message if there is input. */
9853 if (!NILP (echo_area_buffer
[0]))
9854 /* This command displayed something in the echo area;
9855 so wait a few seconds, then display our suggestion message. */
9856 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9857 ? XINT (Vsuggest_key_bindings
) : 2);
9859 /* This command left the echo area empty,
9860 so display our message immediately. */
9863 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9864 && ! CONSP (Vunread_command_events
))
9866 Lisp_Object binding
;
9868 int message_p
= push_message ();
9869 int count
= SPECPDL_INDEX ();
9871 record_unwind_protect (pop_message_unwind
, Qnil
);
9872 binding
= Fkey_description (bindings
, Qnil
);
9875 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9878 sprintf (newmessage
, "You can run the command `%s' with %s",
9879 SDATA (SYMBOL_NAME (function
)),
9881 message2_nolog (newmessage
,
9882 strlen (newmessage
),
9883 STRING_MULTIBYTE (binding
));
9884 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9885 ? Vsuggest_key_bindings
: make_number (2)),
9890 unbind_to (count
, Qnil
);
9894 RETURN_UNGCPRO (value
);
9898 /* Return nonzero if input events are pending. */
9901 detect_input_pending ()
9904 get_input_pending (&input_pending
, 0);
9906 return input_pending
;
9909 /* Return nonzero if input events other than mouse movements are
9913 detect_input_pending_ignore_squeezables ()
9916 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9918 return input_pending
;
9921 /* Return nonzero if input events are pending, and run any pending timers. */
9924 detect_input_pending_run_timers (do_display
)
9927 int old_timers_run
= timers_run
;
9930 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9932 if (old_timers_run
!= timers_run
&& do_display
)
9934 redisplay_preserve_echo_area (8);
9935 /* The following fixes a bug when using lazy-lock with
9936 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9937 from an idle timer function. The symptom of the bug is that
9938 the cursor sometimes doesn't become visible until the next X
9939 event is processed. --gerd. */
9941 rif
->flush_display (NULL
);
9944 return input_pending
;
9947 /* This is called in some cases before a possible quit.
9948 It cases the next call to detect_input_pending to recompute input_pending.
9949 So calling this function unnecessarily can't do any harm. */
9952 clear_input_pending ()
9957 /* Return nonzero if there are pending requeued events.
9958 This isn't used yet. The hope is to make wait_reading_process_output
9959 call it, and return if it runs Lisp code that unreads something.
9960 The problem is, kbd_buffer_get_event needs to be fixed to know what
9961 to do in that case. It isn't trivial. */
9964 requeued_events_pending_p ()
9966 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9970 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9971 doc
: /* Return t if command input is currently available with no wait.
9972 Actually, the value is nil only if we can be sure that no input is available;
9973 if there is a doubt, the value is t. */)
9976 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9979 get_input_pending (&input_pending
,
9980 READABLE_EVENTS_DO_TIMERS_NOW
9981 | READABLE_EVENTS_FILTER_EVENTS
);
9982 return input_pending
> 0 ? Qt
: Qnil
;
9985 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
9986 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
9989 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
9992 if (total_keys
< NUM_RECENT_KEYS
)
9993 return Fvector (total_keys
, keys
);
9996 val
= Fvector (NUM_RECENT_KEYS
, keys
);
9997 bcopy (keys
+ recent_keys_index
,
9998 XVECTOR (val
)->contents
,
9999 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10001 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10002 recent_keys_index
* sizeof (Lisp_Object
));
10007 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10008 doc
: /* Return the key sequence that invoked this command.
10009 However, if the command has called `read-key-sequence', it returns
10010 the last key sequence that has been read.
10011 The value is a string or a vector. */)
10014 return make_event_array (this_command_key_count
,
10015 XVECTOR (this_command_keys
)->contents
);
10018 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10019 doc
: /* Return the key sequence that invoked this command, as a vector.
10020 However, if the command has called `read-key-sequence', it returns
10021 the last key sequence that has been read. */)
10024 return Fvector (this_command_key_count
,
10025 XVECTOR (this_command_keys
)->contents
);
10028 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10029 Sthis_single_command_keys
, 0, 0, 0,
10030 doc
: /* Return the key sequence that invoked this command.
10031 More generally, it returns the last key sequence read, either by
10032 the command loop or by `read-key-sequence'.
10033 Unlike `this-command-keys', this function's value
10034 does not include prefix arguments.
10035 The value is always a vector. */)
10038 return Fvector (this_command_key_count
10039 - this_single_command_key_start
,
10040 (XVECTOR (this_command_keys
)->contents
10041 + this_single_command_key_start
));
10044 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10045 Sthis_single_command_raw_keys
, 0, 0, 0,
10046 doc
: /* Return the raw events that were read for this command.
10047 More generally, it returns the last key sequence read, either by
10048 the command loop or by `read-key-sequence'.
10049 Unlike `this-single-command-keys', this function's value
10050 shows the events before all translations (except for input methods).
10051 The value is always a vector. */)
10054 return Fvector (raw_keybuf_count
,
10055 (XVECTOR (raw_keybuf
)->contents
));
10058 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10059 Sreset_this_command_lengths
, 0, 0, 0,
10060 doc
: /* Make the unread events replace the last command and echo.
10061 Used in `universal-argument-other-key'.
10063 `universal-argument-other-key' rereads the event just typed.
10064 It then gets translated through `function-key-map'.
10065 The translated event has to replace the real events,
10066 both in the value of (this-command-keys) and in echoing.
10067 To achieve this, `universal-argument-other-key' calls
10068 `reset-this-command-lengths', which discards the record of reading
10069 these events the first time. */)
10072 this_command_key_count
= before_command_key_count
;
10073 if (this_command_key_count
< this_single_command_key_start
)
10074 this_single_command_key_start
= this_command_key_count
;
10076 echo_truncate (before_command_echo_length
);
10078 /* Cause whatever we put into unread-command-events
10079 to echo as if it were being freshly read from the keyboard. */
10080 this_command_key_count_reset
= 1;
10085 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10086 Sclear_this_command_keys
, 0, 1, 0,
10087 doc
: /* Clear out the vector that `this-command-keys' returns.
10088 Also clear the record of the last 100 events, unless optional arg
10089 KEEP-RECORD is non-nil. */)
10091 Lisp_Object keep_record
;
10095 this_command_key_count
= 0;
10096 this_command_key_count_reset
= 0;
10098 if (NILP (keep_record
))
10100 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10101 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10103 recent_keys_index
= 0;
10108 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10109 doc
: /* Return the current depth in recursive edits. */)
10113 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10117 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10118 "FOpen dribble file: ",
10119 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10120 If FILE is nil, close any open dribble file. */)
10131 file
= Fexpand_file_name (file
, Qnil
);
10132 dribble
= fopen (SDATA (file
), "w");
10134 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10139 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10140 doc
: /* Discard the contents of the terminal input buffer.
10141 Also end any kbd macro being defined. */)
10144 if (!NILP (current_kboard
->defining_kbd_macro
))
10146 /* Discard the last command from the macro. */
10147 Fcancel_kbd_macro_events ();
10151 update_mode_lines
++;
10153 Vunread_command_events
= Qnil
;
10154 unread_command_char
= -1;
10156 discard_tty_input ();
10158 kbd_fetch_ptr
= kbd_store_ptr
;
10164 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10165 doc
: /* Stop Emacs and return to superior process. You can resume later.
10166 If `cannot-suspend' is non-nil, or if the system doesn't support job
10167 control, run a subshell instead.
10169 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10170 to be read as terminal input by Emacs's parent, after suspension.
10172 Before suspending, run the normal hook `suspend-hook'.
10173 After resumption run the normal hook `suspend-resume-hook'.
10175 Some operating systems cannot stop the Emacs process and resume it later.
10176 On such systems, Emacs starts a subshell instead of suspending. */)
10178 Lisp_Object stuffstring
;
10180 int count
= SPECPDL_INDEX ();
10181 int old_height
, old_width
;
10183 struct gcpro gcpro1
;
10185 if (!NILP (stuffstring
))
10186 CHECK_STRING (stuffstring
);
10188 /* Run the functions in suspend-hook. */
10189 if (!NILP (Vrun_hooks
))
10190 call1 (Vrun_hooks
, intern ("suspend-hook"));
10192 GCPRO1 (stuffstring
);
10193 get_frame_size (&old_width
, &old_height
);
10194 reset_sys_modes ();
10195 /* sys_suspend can get an error if it tries to fork a subshell
10196 and the system resources aren't available for that. */
10197 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_sys_modes
,
10199 stuff_buffered_input (stuffstring
);
10200 if (cannot_suspend
)
10204 unbind_to (count
, Qnil
);
10206 /* Check if terminal/window size has changed.
10207 Note that this is not useful when we are running directly
10208 with a window system; but suspend should be disabled in that case. */
10209 get_frame_size (&width
, &height
);
10210 if (width
!= old_width
|| height
!= old_height
)
10211 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10213 /* Run suspend-resume-hook. */
10214 if (!NILP (Vrun_hooks
))
10215 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10221 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10222 Then in any case stuff anything Emacs has read ahead and not used. */
10225 stuff_buffered_input (stuffstring
)
10226 Lisp_Object stuffstring
;
10228 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10229 register unsigned char *p
;
10231 if (STRINGP (stuffstring
))
10233 register int count
;
10235 p
= SDATA (stuffstring
);
10236 count
= SBYTES (stuffstring
);
10237 while (count
-- > 0)
10242 /* Anything we have read ahead, put back for the shell to read. */
10243 /* ?? What should this do when we have multiple keyboards??
10244 Should we ignore anything that was typed in at the "wrong" kboard?
10246 rms: we should stuff everything back into the kboard
10248 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10251 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10252 kbd_fetch_ptr
= kbd_buffer
;
10253 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10254 stuff_char (kbd_fetch_ptr
->code
);
10256 clear_event (kbd_fetch_ptr
);
10260 #endif /* SIGTSTP */
10264 set_waiting_for_input (time_to_clear
)
10265 EMACS_TIME
*time_to_clear
;
10267 input_available_clear_time
= time_to_clear
;
10269 /* Tell interrupt_signal to throw back to read_char, */
10270 waiting_for_input
= 1;
10272 /* If interrupt_signal was called before and buffered a C-g,
10273 make it run again now, to avoid timing error. */
10274 if (!NILP (Vquit_flag
))
10275 quit_throw_to_read_char ();
10279 clear_waiting_for_input ()
10281 /* Tell interrupt_signal not to throw back to read_char, */
10282 waiting_for_input
= 0;
10283 input_available_clear_time
= 0;
10286 /* This routine is called at interrupt level in response to C-g.
10288 If interrupt_input, this is the handler for SIGINT. Otherwise, it
10289 is called from kbd_buffer_store_event, in handling SIGIO or
10292 If `waiting_for_input' is non zero, then unless `echoing' is
10293 nonzero, immediately throw back to read_char.
10295 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10296 eval to throw, when it gets a chance. If quit-flag is already
10297 non-nil, it stops the job right away. */
10300 interrupt_signal (signalnum
) /* If we don't have an argument, */
10301 int signalnum
; /* some compilers complain in signal calls. */
10304 /* Must preserve main program's value of errno. */
10305 int old_errno
= errno
;
10306 struct frame
*sf
= SELECTED_FRAME ();
10308 #if defined (USG) && !defined (POSIX_SIGNALS)
10309 if (!read_socket_hook
&& NILP (Vwindow_system
))
10311 /* USG systems forget handlers when they are used;
10312 must reestablish each time */
10313 signal (SIGINT
, interrupt_signal
);
10314 signal (SIGQUIT
, interrupt_signal
);
10318 SIGNAL_THREAD_CHECK (signalnum
);
10321 if (!NILP (Vquit_flag
)
10322 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10324 /* If SIGINT isn't blocked, don't let us be interrupted by
10325 another SIGINT, it might be harmful due to non-reentrancy
10326 in I/O functions. */
10327 sigblock (sigmask (SIGINT
));
10330 reset_sys_modes ();
10332 #ifdef SIGTSTP /* Support possible in later USG versions */
10334 * On systems which can suspend the current process and return to the original
10335 * shell, this command causes the user to end up back at the shell.
10336 * The "Auto-save" and "Abort" questions are not asked until
10337 * the user elects to return to emacs, at which point he can save the current
10338 * job and either dump core or continue.
10343 if (sys_suspend () == -1)
10345 printf ("Not running as a subprocess;\n");
10346 printf ("you can continue or abort.\n");
10348 #else /* not VMS */
10349 /* Perhaps should really fork an inferior shell?
10350 But that would not provide any way to get back
10351 to the original shell, ever. */
10352 printf ("No support for stopping a process on this operating system;\n");
10353 printf ("you can continue or abort.\n");
10354 #endif /* not VMS */
10355 #endif /* not SIGTSTP */
10357 /* We must remain inside the screen area when the internal terminal
10358 is used. Note that [Enter] is not echoed by dos. */
10361 /* It doesn't work to autosave while GC is in progress;
10362 the code used for auto-saving doesn't cope with the mark bit. */
10363 if (!gc_in_progress
)
10365 printf ("Auto-save? (y or n) ");
10367 if (((c
= getchar ()) & ~040) == 'Y')
10369 Fdo_auto_save (Qt
, Qnil
);
10371 printf ("\r\nAuto-save done");
10372 #else /* not MSDOS */
10373 printf ("Auto-save done\n");
10374 #endif /* not MSDOS */
10376 while (c
!= '\n') c
= getchar ();
10380 /* During GC, it must be safe to reenable quitting again. */
10381 Vinhibit_quit
= Qnil
;
10384 #endif /* not MSDOS */
10385 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10386 printf ("but will instead do a real quit after garbage collection ends\r\n");
10391 printf ("\r\nAbort? (y or n) ");
10392 #else /* not MSDOS */
10394 printf ("Abort (and enter debugger)? (y or n) ");
10395 #else /* not VMS */
10396 printf ("Abort (and dump core)? (y or n) ");
10397 #endif /* not VMS */
10398 #endif /* not MSDOS */
10400 if (((c
= getchar ()) & ~040) == 'Y')
10402 while (c
!= '\n') c
= getchar ();
10404 printf ("\r\nContinuing...\r\n");
10405 #else /* not MSDOS */
10406 printf ("Continuing...\n");
10407 #endif /* not MSDOS */
10414 /* If executing a function that wants to be interrupted out of
10415 and the user has not deferred quitting by binding `inhibit-quit'
10416 then quit right away. */
10417 if (immediate_quit
&& NILP (Vinhibit_quit
))
10419 struct gl_state_s saved
;
10420 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10422 immediate_quit
= 0;
10425 GCPRO4 (saved
.object
, saved
.global_code
,
10426 saved
.current_syntax_table
, saved
.old_prop
);
10427 Fsignal (Qquit
, Qnil
);
10432 /* Else request quit when it's safe */
10436 if (waiting_for_input
&& !echoing
)
10437 quit_throw_to_read_char ();
10442 /* Handle a C-g by making read_char return C-g. */
10445 quit_throw_to_read_char ()
10448 /* Prevent another signal from doing this before we finish. */
10449 clear_waiting_for_input ();
10452 Vunread_command_events
= Qnil
;
10453 unread_command_char
= -1;
10455 #if 0 /* Currently, sit_for is called from read_char without turning
10456 off polling. And that can call set_waiting_for_input.
10457 It seems to be harmless. */
10458 #ifdef POLL_FOR_INPUT
10459 /* May be > 1 if in recursive minibuffer. */
10460 if (poll_suppress_count
== 0)
10464 if (FRAMEP (internal_last_event_frame
)
10465 && !EQ (internal_last_event_frame
, selected_frame
))
10466 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10469 _longjmp (getcjmp
, 1);
10472 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10473 doc
: /* Set mode of reading keyboard input.
10474 First arg INTERRUPT non-nil means use input interrupts;
10475 nil means use CBREAK mode.
10476 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10477 (no effect except in CBREAK mode).
10478 Third arg META t means accept 8-bit input (for a Meta key).
10479 META nil means ignore the top bit, on the assumption it is parity.
10480 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10481 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10482 See also `current-input-mode'. */)
10483 (interrupt
, flow
, meta
, quit
)
10484 Lisp_Object interrupt
, flow
, meta
, quit
;
10487 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10488 error ("set-input-mode: QUIT must be an ASCII character");
10490 #ifdef POLL_FOR_INPUT
10495 /* this causes startup screen to be restored and messes with the mouse */
10496 reset_sys_modes ();
10500 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10501 if (read_socket_hook
)
10503 /* When using X, don't give the user a real choice,
10504 because we haven't implemented the mechanisms to support it. */
10505 #ifdef NO_SOCK_SIGIO
10506 interrupt_input
= 0;
10507 #else /* not NO_SOCK_SIGIO */
10508 interrupt_input
= 1;
10509 #endif /* NO_SOCK_SIGIO */
10512 interrupt_input
= !NILP (interrupt
);
10513 #else /* not SIGIO */
10514 interrupt_input
= 0;
10515 #endif /* not SIGIO */
10517 /* Our VMS input only works by interrupts, as of now. */
10519 interrupt_input
= 1;
10522 flow_control
= !NILP (flow
);
10525 else if (EQ (meta
, Qt
))
10530 /* Don't let this value be out of range. */
10531 quit_char
= XINT (quit
) & (meta_key
? 0377 : 0177);
10537 #ifdef POLL_FOR_INPUT
10538 poll_suppress_count
= 1;
10544 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10545 doc
: /* Return information about the way Emacs currently reads keyboard input.
10546 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10547 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10548 nil, Emacs is using CBREAK mode.
10549 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10550 terminal; this does not apply if Emacs uses interrupt-driven input.
10551 META is t if accepting 8-bit input with 8th bit as Meta flag.
10552 META nil means ignoring the top bit, on the assumption it is parity.
10553 META is neither t nor nil if accepting 8-bit input and using
10554 all 8 bits as the character code.
10555 QUIT is the character Emacs currently uses to quit.
10556 The elements of this list correspond to the arguments of
10557 `set-input-mode'. */)
10560 Lisp_Object val
[4];
10562 val
[0] = interrupt_input
? Qt
: Qnil
;
10563 val
[1] = flow_control
? Qt
: Qnil
;
10564 val
[2] = meta_key
== 2 ? make_number (0) : meta_key
== 1 ? Qt
: Qnil
;
10565 XSETFASTINT (val
[3], quit_char
);
10567 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10570 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10571 doc
: /* Return position information for pixel coordinates X and Y.
10572 By default, X and Y are relative to text area of the selected window.
10573 Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
10574 If optional fourth arg WHOLE is non-nil, X is relative to the left
10575 edge of the window.
10577 The return value is similar to a mouse click position:
10578 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10579 IMAGE (DX . DY) (WIDTH . HEIGHT))
10580 The `posn-' functions access elements of such lists. */)
10581 (x
, y
, frame_or_window
, whole
)
10582 Lisp_Object x
, y
, frame_or_window
, whole
;
10587 if (NILP (frame_or_window
))
10588 frame_or_window
= selected_window
;
10590 if (WINDOWP (frame_or_window
))
10594 CHECK_LIVE_WINDOW (frame_or_window
);
10596 w
= XWINDOW (frame_or_window
);
10597 XSETINT (x
, (XINT (x
)
10598 + WINDOW_LEFT_EDGE_X (w
)
10600 ? window_box_left_offset (w
, TEXT_AREA
)
10602 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10603 frame_or_window
= w
->frame
;
10606 CHECK_LIVE_FRAME (frame_or_window
);
10608 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10611 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10612 doc
: /* Return position information for buffer POS in WINDOW.
10613 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10615 Return nil if position is not visible in window. Otherwise,
10616 the return value is similar to that returned by `event-start' for
10617 a mouse click at the upper left corner of the glyph corresponding
10618 to the given buffer position:
10619 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10620 IMAGE (DX . DY) (WIDTH . HEIGHT))
10621 The `posn-' functions access elements of such lists. */)
10623 Lisp_Object pos
, window
;
10628 window
= selected_window
;
10630 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10633 Lisp_Object x
= XCAR (tem
);
10634 Lisp_Object y
= XCAR (XCDR (tem
));
10636 /* Point invisible due to hscrolling? */
10639 tem
= Fposn_at_x_y (x
, y
, window
, Qnil
);
10647 * Set up a new kboard object with reasonable initial values.
10653 kb
->Voverriding_terminal_local_map
= Qnil
;
10654 kb
->Vlast_command
= Qnil
;
10655 kb
->Vreal_last_command
= Qnil
;
10656 kb
->Vprefix_arg
= Qnil
;
10657 kb
->Vlast_prefix_arg
= Qnil
;
10658 kb
->kbd_queue
= Qnil
;
10659 kb
->kbd_queue_has_data
= 0;
10660 kb
->immediate_echo
= 0;
10661 kb
->echo_string
= Qnil
;
10662 kb
->echo_after_prompt
= -1;
10663 kb
->kbd_macro_buffer
= 0;
10664 kb
->kbd_macro_bufsize
= 0;
10665 kb
->defining_kbd_macro
= Qnil
;
10666 kb
->Vlast_kbd_macro
= Qnil
;
10667 kb
->reference_count
= 0;
10668 kb
->Vsystem_key_alist
= Qnil
;
10669 kb
->system_key_syms
= Qnil
;
10670 kb
->Vdefault_minibuffer_frame
= Qnil
;
10674 * Destroy the contents of a kboard object, but not the object itself.
10675 * We use this just before deleting it, or if we're going to initialize
10676 * it a second time.
10682 if (kb
->kbd_macro_buffer
)
10683 xfree (kb
->kbd_macro_buffer
);
10686 #ifdef MULTI_KBOARD
10688 /* Free KB and memory referenced from it. */
10696 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10699 *kbp
= kb
->next_kboard
;
10701 /* Prevent a dangling reference to KB. */
10702 if (kb
== current_kboard
10703 && FRAMEP (selected_frame
)
10704 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10706 current_kboard
= XFRAME (selected_frame
)->kboard
;
10707 if (current_kboard
== kb
)
10715 #endif /* MULTI_KBOARD */
10720 /* This is correct before outermost invocation of the editor loop */
10721 command_loop_level
= -1;
10722 immediate_quit
= 0;
10723 quit_char
= Ctl ('g');
10724 Vunread_command_events
= Qnil
;
10725 unread_command_char
= -1;
10726 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10728 recent_keys_index
= 0;
10729 kbd_fetch_ptr
= kbd_buffer
;
10730 kbd_store_ptr
= kbd_buffer
;
10732 do_mouse_tracking
= Qnil
;
10736 /* This means that command_loop_1 won't try to select anything the first
10738 internal_last_event_frame
= Qnil
;
10739 Vlast_event_frame
= internal_last_event_frame
;
10741 #ifdef MULTI_KBOARD
10742 current_kboard
= initial_kboard
;
10744 wipe_kboard (current_kboard
);
10745 init_kboard (current_kboard
);
10747 if (!noninteractive
&& !read_socket_hook
&& NILP (Vwindow_system
))
10749 signal (SIGINT
, interrupt_signal
);
10750 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10751 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10752 SIGQUIT and we can't tell which one it will give us. */
10753 signal (SIGQUIT
, interrupt_signal
);
10754 #endif /* HAVE_TERMIO */
10756 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10758 if (!noninteractive
)
10759 signal (SIGIO
, input_available_signal
);
10762 /* Use interrupt input by default, if it works and noninterrupt input
10763 has deficiencies. */
10765 #ifdef INTERRUPT_INPUT
10766 interrupt_input
= 1;
10768 interrupt_input
= 0;
10771 /* Our VMS input only works by interrupts, as of now. */
10773 interrupt_input
= 1;
10779 if (keyboard_init_hook
)
10780 (*keyboard_init_hook
) ();
10782 #ifdef POLL_FOR_INPUT
10783 poll_suppress_count
= 1;
10788 /* This type's only use is in syms_of_keyboard, to initialize the
10789 event header symbols and put properties on them. */
10790 struct event_head
{
10796 struct event_head head_table
[] = {
10797 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10798 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10799 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10800 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10801 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10802 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10803 /* `select-window' should be handled just like `switch-frame'
10804 in read_key_sequence. */
10805 {&Qselect_window
, "select-window", &Qswitch_frame
}
10809 syms_of_keyboard ()
10811 Vpre_help_message
= Qnil
;
10812 staticpro (&Vpre_help_message
);
10814 Vlispy_mouse_stem
= build_string ("mouse");
10815 staticpro (&Vlispy_mouse_stem
);
10818 QCimage
= intern (":image");
10819 staticpro (&QCimage
);
10821 staticpro (&Qhelp_echo
);
10822 Qhelp_echo
= intern ("help-echo");
10824 staticpro (&item_properties
);
10825 item_properties
= Qnil
;
10827 staticpro (&tool_bar_item_properties
);
10828 tool_bar_item_properties
= Qnil
;
10829 staticpro (&tool_bar_items_vector
);
10830 tool_bar_items_vector
= Qnil
;
10832 staticpro (&real_this_command
);
10833 real_this_command
= Qnil
;
10835 Qtimer_event_handler
= intern ("timer-event-handler");
10836 staticpro (&Qtimer_event_handler
);
10838 Qdisabled_command_function
= intern ("disabled-command-function");
10839 staticpro (&Qdisabled_command_function
);
10841 Qself_insert_command
= intern ("self-insert-command");
10842 staticpro (&Qself_insert_command
);
10844 Qforward_char
= intern ("forward-char");
10845 staticpro (&Qforward_char
);
10847 Qbackward_char
= intern ("backward-char");
10848 staticpro (&Qbackward_char
);
10850 Qdisabled
= intern ("disabled");
10851 staticpro (&Qdisabled
);
10853 Qundefined
= intern ("undefined");
10854 staticpro (&Qundefined
);
10856 Qpre_command_hook
= intern ("pre-command-hook");
10857 staticpro (&Qpre_command_hook
);
10859 Qpost_command_hook
= intern ("post-command-hook");
10860 staticpro (&Qpost_command_hook
);
10862 Qdeferred_action_function
= intern ("deferred-action-function");
10863 staticpro (&Qdeferred_action_function
);
10865 Qcommand_hook_internal
= intern ("command-hook-internal");
10866 staticpro (&Qcommand_hook_internal
);
10868 Qfunction_key
= intern ("function-key");
10869 staticpro (&Qfunction_key
);
10870 Qmouse_click
= intern ("mouse-click");
10871 staticpro (&Qmouse_click
);
10872 #if defined (WINDOWSNT) || defined (MAC_OS)
10873 Qlanguage_change
= intern ("language-change");
10874 staticpro (&Qlanguage_change
);
10876 Qdrag_n_drop
= intern ("drag-n-drop");
10877 staticpro (&Qdrag_n_drop
);
10879 Qsave_session
= intern ("save-session");
10880 staticpro (&Qsave_session
);
10882 Qusr1_signal
= intern ("usr1-signal");
10883 staticpro (&Qusr1_signal
);
10884 Qusr2_signal
= intern ("usr2-signal");
10885 staticpro (&Qusr2_signal
);
10887 Qmenu_enable
= intern ("menu-enable");
10888 staticpro (&Qmenu_enable
);
10889 Qmenu_alias
= intern ("menu-alias");
10890 staticpro (&Qmenu_alias
);
10891 QCenable
= intern (":enable");
10892 staticpro (&QCenable
);
10893 QCvisible
= intern (":visible");
10894 staticpro (&QCvisible
);
10895 QChelp
= intern (":help");
10896 staticpro (&QChelp
);
10897 QCfilter
= intern (":filter");
10898 staticpro (&QCfilter
);
10899 QCbutton
= intern (":button");
10900 staticpro (&QCbutton
);
10901 QCkeys
= intern (":keys");
10902 staticpro (&QCkeys
);
10903 QCkey_sequence
= intern (":key-sequence");
10904 staticpro (&QCkey_sequence
);
10905 QCtoggle
= intern (":toggle");
10906 staticpro (&QCtoggle
);
10907 QCradio
= intern (":radio");
10908 staticpro (&QCradio
);
10910 Qmode_line
= intern ("mode-line");
10911 staticpro (&Qmode_line
);
10912 Qvertical_line
= intern ("vertical-line");
10913 staticpro (&Qvertical_line
);
10914 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10915 staticpro (&Qvertical_scroll_bar
);
10916 Qmenu_bar
= intern ("menu-bar");
10917 staticpro (&Qmenu_bar
);
10920 Qmouse_fixup_help_message
= intern ("mouse-fixup-help-message");
10921 staticpro (&Qmouse_fixup_help_message
);
10924 Qabove_handle
= intern ("above-handle");
10925 staticpro (&Qabove_handle
);
10926 Qhandle
= intern ("handle");
10927 staticpro (&Qhandle
);
10928 Qbelow_handle
= intern ("below-handle");
10929 staticpro (&Qbelow_handle
);
10930 Qup
= intern ("up");
10932 Qdown
= intern ("down");
10933 staticpro (&Qdown
);
10934 Qtop
= intern ("top");
10936 Qbottom
= intern ("bottom");
10937 staticpro (&Qbottom
);
10938 Qend_scroll
= intern ("end-scroll");
10939 staticpro (&Qend_scroll
);
10940 Qratio
= intern ("ratio");
10941 staticpro (&Qratio
);
10943 Qevent_kind
= intern ("event-kind");
10944 staticpro (&Qevent_kind
);
10945 Qevent_symbol_elements
= intern ("event-symbol-elements");
10946 staticpro (&Qevent_symbol_elements
);
10947 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10948 staticpro (&Qevent_symbol_element_mask
);
10949 Qmodifier_cache
= intern ("modifier-cache");
10950 staticpro (&Qmodifier_cache
);
10952 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10953 staticpro (&Qrecompute_lucid_menubar
);
10954 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10955 staticpro (&Qactivate_menubar_hook
);
10957 Qpolling_period
= intern ("polling-period");
10958 staticpro (&Qpolling_period
);
10960 Qinput_method_function
= intern ("input-method-function");
10961 staticpro (&Qinput_method_function
);
10963 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
10964 staticpro (&Qinput_method_exit_on_first_char
);
10965 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
10966 staticpro (&Qinput_method_use_echo_area
);
10968 Fset (Qinput_method_exit_on_first_char
, Qnil
);
10969 Fset (Qinput_method_use_echo_area
, Qnil
);
10971 last_point_position_buffer
= Qnil
;
10974 struct event_head
*p
;
10976 for (p
= head_table
;
10977 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
10980 *p
->var
= intern (p
->name
);
10981 staticpro (p
->var
);
10982 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
10983 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
10987 button_down_location
= Fmake_vector (make_number (1), Qnil
);
10988 staticpro (&button_down_location
);
10989 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
10990 staticpro (&mouse_syms
);
10991 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
10992 staticpro (&wheel_syms
);
10996 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
10998 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
10999 for (i
= 0; i
< len
; i
++)
11000 if (modifier_names
[i
])
11001 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11002 staticpro (&modifier_symbols
);
11005 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11006 staticpro (&recent_keys
);
11008 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11009 staticpro (&this_command_keys
);
11011 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11012 staticpro (&raw_keybuf
);
11014 Qextended_command_history
= intern ("extended-command-history");
11015 Fset (Qextended_command_history
, Qnil
);
11016 staticpro (&Qextended_command_history
);
11018 accent_key_syms
= Qnil
;
11019 staticpro (&accent_key_syms
);
11021 func_key_syms
= Qnil
;
11022 staticpro (&func_key_syms
);
11024 drag_n_drop_syms
= Qnil
;
11025 staticpro (&drag_n_drop_syms
);
11027 unread_switch_frame
= Qnil
;
11028 staticpro (&unread_switch_frame
);
11030 internal_last_event_frame
= Qnil
;
11031 staticpro (&internal_last_event_frame
);
11033 read_key_sequence_cmd
= Qnil
;
11034 staticpro (&read_key_sequence_cmd
);
11036 menu_bar_one_keymap_changed_items
= Qnil
;
11037 staticpro (&menu_bar_one_keymap_changed_items
);
11039 menu_bar_items_vector
= Qnil
;
11040 staticpro (&menu_bar_items_vector
);
11042 defsubr (&Sevent_convert_list
);
11043 defsubr (&Sread_key_sequence
);
11044 defsubr (&Sread_key_sequence_vector
);
11045 defsubr (&Srecursive_edit
);
11047 defsubr (&Strack_mouse
);
11049 defsubr (&Sinput_pending_p
);
11050 defsubr (&Scommand_execute
);
11051 defsubr (&Srecent_keys
);
11052 defsubr (&Sthis_command_keys
);
11053 defsubr (&Sthis_command_keys_vector
);
11054 defsubr (&Sthis_single_command_keys
);
11055 defsubr (&Sthis_single_command_raw_keys
);
11056 defsubr (&Sreset_this_command_lengths
);
11057 defsubr (&Sclear_this_command_keys
);
11058 defsubr (&Ssuspend_emacs
);
11059 defsubr (&Sabort_recursive_edit
);
11060 defsubr (&Sexit_recursive_edit
);
11061 defsubr (&Srecursion_depth
);
11062 defsubr (&Stop_level
);
11063 defsubr (&Sdiscard_input
);
11064 defsubr (&Sopen_dribble_file
);
11065 defsubr (&Sset_input_mode
);
11066 defsubr (&Scurrent_input_mode
);
11067 defsubr (&Sexecute_extended_command
);
11068 defsubr (&Sposn_at_point
);
11069 defsubr (&Sposn_at_x_y
);
11071 DEFVAR_LISP ("last-command-char", &last_command_char
,
11072 doc
: /* Last input event that was part of a command. */);
11074 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11075 doc
: /* Last input event that was part of a command. */);
11077 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11078 doc
: /* Last input event in a command, except for mouse menu events.
11079 Mouse menus give back keys that don't look like mouse events;
11080 this variable holds the actual mouse event that led to the menu,
11081 so that you can determine whether the command was run by mouse or not. */);
11083 DEFVAR_LISP ("last-input-char", &last_input_char
,
11084 doc
: /* Last input event. */);
11086 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11087 doc
: /* Last input event. */);
11089 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11090 doc
: /* List of events to be read as the command input.
11091 These events are processed first, before actual keyboard input. */);
11092 Vunread_command_events
= Qnil
;
11094 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11095 doc
: /* If not -1, an object to be read as next command input event. */);
11097 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11098 doc
: /* List of events to be processed as input by input methods.
11099 These events are processed after `unread-command-events', but
11100 before actual keyboard input. */);
11101 Vunread_post_input_method_events
= Qnil
;
11103 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11104 doc
: /* List of events to be processed as input by input methods.
11105 These events are processed after `unread-command-events', but
11106 before actual keyboard input. */);
11107 Vunread_input_method_events
= Qnil
;
11109 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11110 doc
: /* Meta-prefix character code.
11111 Meta-foo as command input turns into this character followed by foo. */);
11112 XSETINT (meta_prefix_char
, 033);
11114 DEFVAR_KBOARD ("last-command", Vlast_command
,
11115 doc
: /* The last command executed.
11116 Normally a symbol with a function definition, but can be whatever was found
11117 in the keymap, or whatever the variable `this-command' was set to by that
11120 The value `mode-exit' is special; it means that the previous command
11121 read an event that told it to exit, and it did so and unread that event.
11122 In other words, the present command is the event that made the previous
11125 The value `kill-region' is special; it means that the previous command
11126 was a kill command. */);
11128 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11129 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11131 DEFVAR_LISP ("this-command", &Vthis_command
,
11132 doc
: /* The command now being executed.
11133 The command can set this variable; whatever is put here
11134 will be in `last-command' during the following command. */);
11135 Vthis_command
= Qnil
;
11137 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11138 doc
: /* The command bound to the current key sequence before remapping.
11139 It equals `this-command' if the original command was not remapped through
11140 any of the active keymaps. Otherwise, the value of `this-command' is the
11141 result of looking up the original command in the active keymaps. */);
11142 Vthis_original_command
= Qnil
;
11144 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11145 doc
: /* *Number of input events between auto-saves.
11146 Zero means disable autosaving due to number of characters typed. */);
11147 auto_save_interval
= 300;
11149 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11150 doc
: /* *Number of seconds idle time before auto-save.
11151 Zero or nil means disable auto-saving due to idleness.
11152 After auto-saving due to this many seconds of idle time,
11153 Emacs also does a garbage collection if that seems to be warranted. */);
11154 XSETFASTINT (Vauto_save_timeout
, 30);
11156 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11157 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11158 The value may be integer or floating point. */);
11159 Vecho_keystrokes
= make_number (1);
11161 DEFVAR_INT ("polling-period", &polling_period
,
11162 doc
: /* *Interval between polling for input during Lisp execution.
11163 The reason for polling is to make C-g work to stop a running program.
11164 Polling is needed only when using X windows and SIGIO does not work.
11165 Polling is automatically disabled in all other cases. */);
11166 polling_period
= 2;
11168 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11169 doc
: /* *Maximum time between mouse clicks to make a double-click.
11170 Measured in milliseconds. nil means disable double-click recognition;
11171 t means double-clicks have no time limit and are detected
11172 by position only. */);
11173 Vdouble_click_time
= make_number (500);
11175 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11176 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11177 On window-system frames, value is the number of pixels the mouse may have
11178 moved horizontally or vertically between two clicks to make a double-click.
11179 On non window-system frames, value is interpreted in units of 1/8 characters
11182 This variable is also the threshold for motion of the mouse
11183 to count as a drag. */);
11184 double_click_fuzz
= 3;
11186 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11187 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11188 inhibit_local_menu_bar_menus
= 0;
11190 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11191 doc
: /* Number of complete key sequences read as input so far.
11192 This includes key sequences read from keyboard macros.
11193 The number is effectively the number of interactive command invocations. */);
11194 num_input_keys
= 0;
11196 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11197 doc
: /* Number of input events read from the keyboard so far.
11198 This does not include events generated by keyboard macros. */);
11199 num_nonmacro_input_events
= 0;
11201 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11202 doc
: /* The frame in which the most recently read event occurred.
11203 If the last event came from a keyboard macro, this is set to `macro'. */);
11204 Vlast_event_frame
= Qnil
;
11206 /* This variable is set up in sysdep.c. */
11207 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11208 doc
: /* The ERASE character as set by the user with stty. */);
11210 DEFVAR_LISP ("help-char", &Vhelp_char
,
11211 doc
: /* Character to recognize as meaning Help.
11212 When it is read, do `(eval help-form)', and display result if it's a string.
11213 If the value of `help-form' is nil, this char can be read normally. */);
11214 XSETINT (Vhelp_char
, Ctl ('H'));
11216 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11217 doc
: /* List of input events to recognize as meaning Help.
11218 These work just like the value of `help-char' (see that). */);
11219 Vhelp_event_list
= Qnil
;
11221 DEFVAR_LISP ("help-form", &Vhelp_form
,
11222 doc
: /* Form to execute when character `help-char' is read.
11223 If the form returns a string, that string is displayed.
11224 If `help-form' is nil, the help char is not recognized. */);
11227 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11228 doc
: /* Command to run when `help-char' character follows a prefix key.
11229 This command is used only when there is no actual binding
11230 for that character after that prefix key. */);
11231 Vprefix_help_command
= Qnil
;
11233 DEFVAR_LISP ("top-level", &Vtop_level
,
11234 doc
: /* Form to evaluate when Emacs starts up.
11235 Useful to set before you dump a modified Emacs. */);
11238 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11239 doc
: /* Translate table for keyboard input, or nil.
11240 If non-nil, the value should be a char-table. Each character read
11241 from the keyboard is looked up in this char-table. If the value found
11242 there is non-nil, then it is used instead of the actual input character.
11244 The value can also be a string or vector, but this is considered obsolete.
11245 If it is a string or vector of length N, character codes N and up are left
11246 untranslated. In a vector, an element which is nil means "no translation".
11248 This is applied to the characters supplied to input methods, not their
11249 output. See also `translation-table-for-input'. */);
11250 Vkeyboard_translate_table
= Qnil
;
11252 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11253 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11254 \(Even if the operating system has support for stopping a process.\) */);
11255 cannot_suspend
= 0;
11257 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11258 doc
: /* Non-nil means prompt with menus when appropriate.
11259 This is done when reading from a keymap that has a prompt string,
11260 for elements that have prompt strings.
11261 The menu is displayed on the screen
11262 if X menus were enabled at configuration
11263 time and the previous event was a mouse click prefix key.
11264 Otherwise, menu prompting uses the echo area. */);
11265 menu_prompting
= 1;
11267 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11268 doc
: /* Character to see next line of menu prompt.
11269 Type this character while in a menu prompt to rotate around the lines of it. */);
11270 XSETINT (menu_prompt_more_char
, ' ');
11272 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11273 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11274 Emacs applies the modifiers of the character stored here to each keyboard
11275 character it reads. For example, after evaluating the expression
11276 (setq extra-keyboard-modifiers ?\\C-x)
11277 all input characters will have the control modifier applied to them.
11279 Note that the character ?\\C-@, equivalent to the integer zero, does
11280 not count as a control character; rather, it counts as a character
11281 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11282 cancels any modification. */);
11283 extra_keyboard_modifiers
= 0;
11285 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11286 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11287 The command loop sets this to nil before each command,
11288 and tests the value when the command returns.
11289 Buffer modification stores t in this variable. */);
11290 Vdeactivate_mark
= Qnil
;
11292 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11293 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11294 Vcommand_hook_internal
= Qnil
;
11296 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11297 doc
: /* Normal hook run before each command is executed.
11298 If an unhandled error happens in running this hook,
11299 the hook value is set to nil, since otherwise the error
11300 might happen repeatedly and make Emacs nonfunctional. */);
11301 Vpre_command_hook
= Qnil
;
11303 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11304 doc
: /* Normal hook run after each command is executed.
11305 If an unhandled error happens in running this hook,
11306 the hook value is set to nil, since otherwise the error
11307 might happen repeatedly and make Emacs nonfunctional. */);
11308 Vpost_command_hook
= Qnil
;
11311 DEFVAR_LISP ("echo-area-clear-hook", ...,
11312 doc
: /* Normal hook run when clearing the echo area. */);
11314 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11315 staticpro (&Qecho_area_clear_hook
);
11316 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11318 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11319 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11320 Vlucid_menu_bar_dirty_flag
= Qnil
;
11322 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11323 doc
: /* List of menu bar items to move to the end of the menu bar.
11324 The elements of the list are event types that may have menu bar bindings. */);
11325 Vmenu_bar_final_items
= Qnil
;
11327 DEFVAR_KBOARD ("overriding-terminal-local-map",
11328 Voverriding_terminal_local_map
,
11329 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11330 If this variable is non-nil, it is used as a keymap instead of the
11331 buffer's local map, and the minor mode keymaps and text property keymaps.
11332 It also replaces `overriding-local-map'.
11334 This variable is intended to let commands such as `universal-argument'
11335 set up a different keymap for reading the next command. */);
11337 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11338 doc
: /* Keymap that overrides all other local keymaps.
11339 If this variable is non-nil, it is used as a keymap--replacing the
11340 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11341 Voverriding_local_map
= Qnil
;
11343 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11344 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11345 Otherwise, the menu bar continues to reflect the buffer's local map
11346 and the minor mode maps regardless of `overriding-local-map'. */);
11347 Voverriding_local_map_menu_flag
= Qnil
;
11349 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11350 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11351 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11353 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11354 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11356 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11357 doc
: /* Alist of system-specific X windows key symbols.
11358 Each element should have the form (N . SYMBOL) where N is the
11359 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11360 and SYMBOL is its name. */);
11362 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11363 doc
: /* List of deferred actions to be performed at a later time.
11364 The precise format isn't relevant here; we just check whether it is nil. */);
11365 Vdeferred_action_list
= Qnil
;
11367 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11368 doc
: /* Function to call to handle deferred actions, after each command.
11369 This function is called with no arguments after each command
11370 whenever `deferred-action-list' is non-nil. */);
11371 Vdeferred_action_function
= Qnil
;
11373 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11374 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11375 The value can be a length of time to show the message for.
11376 If the value is non-nil and not a number, we wait 2 seconds. */);
11377 Vsuggest_key_bindings
= Qt
;
11379 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11380 doc
: /* List of active absolute time timers in order of increasing time. */);
11381 Vtimer_list
= Qnil
;
11383 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11384 doc
: /* List of active idle-time timers in order of increasing time. */);
11385 Vtimer_idle_list
= Qnil
;
11387 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11388 doc
: /* If non-nil, the function that implements the current input method.
11389 It's called with one argument, a printing character that was just read.
11390 \(That means a character with code 040...0176.)
11391 Typically this function uses `read-event' to read additional events.
11392 When it does so, it should first bind `input-method-function' to nil
11393 so it will not be called recursively.
11395 The function should return a list of zero or more events
11396 to be used as input. If it wants to put back some events
11397 to be reconsidered, separately, by the input method,
11398 it can add them to the beginning of `unread-command-events'.
11400 The input method function can find in `input-method-previous-method'
11401 the previous echo area message.
11403 The input method function should refer to the variables
11404 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11405 for guidance on what to do. */);
11406 Vinput_method_function
= Qnil
;
11408 DEFVAR_LISP ("input-method-previous-message",
11409 &Vinput_method_previous_message
,
11410 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11411 This variable exists because `read-event' clears the echo area
11412 before running the input method. It is nil if there was no message. */);
11413 Vinput_method_previous_message
= Qnil
;
11415 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11416 doc
: /* If non-nil, the function that implements the display of help.
11417 It's called with one argument, the help string to display. */);
11418 Vshow_help_function
= Qnil
;
11420 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11421 doc
: /* If non-nil, suppress point adjustment after executing a command.
11423 After a command is executed, if point is moved into a region that has
11424 special properties (e.g. composition, display), we adjust point to
11425 the boundary of the region. But, when a command sets this variable to
11426 non-nil, we suppress the point adjustment.
11428 This variable is set to nil before reading a command, and is checked
11429 just after executing the command. */);
11430 Vdisable_point_adjustment
= Qnil
;
11432 DEFVAR_LISP ("global-disable-point-adjustment",
11433 &Vglobal_disable_point_adjustment
,
11434 doc
: /* *If non-nil, always suppress point adjustment.
11436 The default value is nil, in which case, point adjustment are
11437 suppressed only after special commands that set
11438 `disable-point-adjustment' (which see) to non-nil. */);
11439 Vglobal_disable_point_adjustment
= Qnil
;
11441 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11442 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11443 If the value is not a number, such messages don't time out. */);
11444 Vminibuffer_message_timeout
= make_number (2);
11446 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11447 doc
: /* If non-nil, any keyboard input throws to this symbol.
11448 The value of that variable is passed to `quit-flag' and later causes a
11449 peculiar kind of quitting. */);
11450 Vthrow_on_input
= Qnil
;
11454 keys_of_keyboard ()
11456 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11457 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11458 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11459 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11460 initial_define_key (meta_map
, 'x', "execute-extended-command");
11462 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11463 "handle-delete-frame");
11464 /* Here we used to use `ignore-event' which would simple set prefix-arg to
11465 current-prefix-arg, as is done in `handle-switch-frame'.
11466 But `handle-switch-frame is not run from the special-map.
11467 Commands from that map are run in a special way that automatically
11468 preserves the prefix-arg. Restoring the prefix arg here is not just
11469 redundant but harmful:
11471 - current-prefix-arg is set to non-nil, prefix-arg is set to nil.
11472 - after the first prompt, the exit-minibuffer-hook is run which may
11473 iconify a frame and thus push a `iconify-frame' event.
11474 - after running exit-minibuffer-hook, current-prefix-arg is
11475 restored to the non-nil value it had before the prompt.
11476 - we enter the second prompt.
11477 current-prefix-arg is non-nil, prefix-arg is nil.
11478 - before running the first real event, we run the special iconify-frame
11479 event, but we pass the `special' arg to execute-command so
11480 current-prefix-arg and prefix-arg are left untouched.
11481 - here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
11482 - the next key event will have a spuriously non-nil current-prefix-arg. */
11483 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11485 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11487 /* Handling it at such a low-level causes read_key_sequence to get
11488 * confused because it doesn't realize that the current_buffer was
11489 * changed by read_char.
11491 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11492 * "handle-select-window"); */
11493 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11494 "handle-save-session");
11497 /* Mark the pointers in the kboard objects.
11498 Called by the Fgarbage_collector. */
11504 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11506 if (kb
->kbd_macro_buffer
)
11507 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11509 mark_object (kb
->Voverriding_terminal_local_map
);
11510 mark_object (kb
->Vlast_command
);
11511 mark_object (kb
->Vreal_last_command
);
11512 mark_object (kb
->Vprefix_arg
);
11513 mark_object (kb
->Vlast_prefix_arg
);
11514 mark_object (kb
->kbd_queue
);
11515 mark_object (kb
->defining_kbd_macro
);
11516 mark_object (kb
->Vlast_kbd_macro
);
11517 mark_object (kb
->Vsystem_key_alist
);
11518 mark_object (kb
->system_key_syms
);
11519 mark_object (kb
->Vdefault_minibuffer_frame
);
11520 mark_object (kb
->echo_string
);
11523 struct input_event
*event
;
11524 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11526 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11527 event
= kbd_buffer
;
11528 if (event
->kind
!= SELECTION_REQUEST_EVENT
11529 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11531 mark_object (event
->x
);
11532 mark_object (event
->y
);
11534 mark_object (event
->frame_or_window
);
11535 mark_object (event
->arg
);
11540 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11541 (do not change this comment) */